Background: Many studies found that the Glycyrrhiza glabra (G.glabra) showed a positive effect on the activation of sperm in vitro specifically improve the activity of progressive movement. However, it was not known the impact of this stimulant on the certain sperms parameters in vasal obstructive mammals. Objectives: This experiment was designed to examine the possibility of fertilization ova by epididymal sperm of vasectomized mice activated by G. glabra and study the early embryonic development, as a model for obstructive azoospermia. Methods: Glycyrrhiza glabra aqueous extract (0.3 mg/ml culture medium) was used for in vitro direct sperm activation technique. The superovulated female mice (SUO) were divided into two groups, the first group; the insemination of flushed ova was performed with epididymal sperm of vasectomized male mice activated by adding30% of G. glabra to the culture medium (treated group).While the second group,the ova were inseminated by epididymal sperm of vasectomized male mice activated by G. glabra - free medium (control). Results: This study showed a highly significant (P <0.01) improvement in certain sperm function parameters i.e the sperm forward movement, morphologically normal sperms (MAS). There was a significant (P<0.05) increase in fertilization rate (FR) of SUO mice oocyte using 30% G. glabra medium(75.84%) compared to G. glabraFree medium (Hams -F12 medium) alone (54.43%).By adding 30% G. glabra to the medium, the number of 3-cell and 4-cell embryonic stage of SUO mice was significantly (P <0.05) higher than that of grouping G. glabra- Free medium mice embryo(62.10% and 65.78% vs. 58.88 and 66.29%, respectively). Conclusion: This study showed a highly significant (P <0.01) improvement in certain sperm function parameters i.e the sperm forward movement, morphologically normal sperms (MAS). There was a significant (P<0.05) increase in fertilization rate (FR) of SUO mice oocyte using 30% G. glabra medium(75.84%) compared to G. glabraFree medium (Hams-F12 medium) alone (54.43%).By adding 30% G. glabra to the medium, the number of 3-cell and 4-cell embryonic stage of SUO mice was significantly (P <0.05) higher than that of grouping G. glabra- Free medium mice embryo(62.10% and 65.78% vs. 58.88 and 66.29%, respectively).
Background: Superovulation in mice causes a delayed embryonic development in vitro and in vivo, an increased abnormal blastocyst formation, pronounced fetal growth retardation. Objective: Morphometric measurements the dimensions (thickness, length) of fetal kidney and suprarenal gland during the later intrauterine life, after superovulation induction. Methods: Twenty five mature female mice Swiss-Webster mice, these mice were divided into two groups: experimental (G1) (15animal/group) and control group(G2) (10 animal/group). Superovulation was induced by intraperitoneal (IP) injection of 7.5 IU of PMSG,then followed by 7.5 IU of HCG after 48 hours. Ovulation was taken place between 122± hours after injection of HCG. One mature male mice was placed with three superovulated female mice for mating. Pregnant females were sacrificed on gestational day eighteen in all experimental groups. For morphometric study 20 mice embryos were fixed in Bouin>s fixative, longitudinal sections of whole embedded embryo were stained by H&E, the specimens independently read. The dimensions (thickness, length) of fetal kidney and suprarenal gland were evaluated. Results: The statistical analysis showed significant decrease (P<0.01) in weights of fetuses in comparison with control group. The study was showed significant decrease (P< 0.01) in fetal kidney dimensions at day 18 of intrauterine life, when it compared to the fetal kidney of non superovulated group(control group). There was also significant decrease (P< 0.01) in the morphometric measurements of fetal suprarenal gland dimensions. Conclusion: The study improve that there is a delay in growth of kidney and suprarenal gland in fetal mice that belongs to mother undergo to superovulation induction before pregnancy.
Background: Speramax® was found to play an important role in sperm function characters and males reproductive performance with no studies on its effects on the oocyte maturation and embryonic development in females. Objective: The goal of the present work was to examine the effect of Speramax ® on oocyte maturation ,ova quality , embryonic development and live birth using mice as a model for mammals . Materials and Methods: In this study, Speramax ® was administrated orally for 1, 2 and 4 weeks . One hundred and ten female mice were randomly divided into four groups , the first group was superovulated(SUO) while the second group was treated by Speramax® with SUO and the third group was spontaneously ovulated (SPO) and treated with Speramax ® and the forth group was spontaneously ovulated (SPO ) and served as control group .Another forty-eight female mice were used for the determination of the number of live births . Results: The results indicated that treatment with Speramax® showed a positive effect on oocytes maturation in vivo. There was a highly significance ( p˂ 0.0001) improvement in the number of mature oocytes following treatment with Speramax® in SPO and SUO mice compared with SPO and SUO mice not treated with Speramax® . The percentage of embryonic development after 24 and 48 hours of mating in treated groups with Speramax® was significantly ( p˂ 0.05) higher than SPO and SUO mice .The study showed that the quantity and quality of embryos obtained from the treated groups were superior to that of the untreated group . Conclusions: It was concluded that the Speramax® greatly improved oocyte maturation, early embryonic development and embryo grading quality embryos with an increase in the numbers of mice live births.
Background: Analysis of human reports and comparison with results of exper-imental animals indicate that the effects of progesterone on human not analo-gous to experimental animals fetus, many studies showed that exposure to pro-gesterone during developing of genital tract of human fetus was not teratogenic. Other studies which performed on laboratory animals found association between progesterone administration during gestation and genital malformation. Objectives: to explore the effect of progesterone in 10.2mg/kg intraperitoneal injection in mice on testis development and anogenital distance. Materials and Methods: ten pregnant mice divided into five mouse control group that injected10.2mg/kg sesame oil and treated group that injected proges-terone at dose 10.2mg/kg/day allover gestation to the seventh day postnatally, mice offspring sacrificed, the anogenital distance, weight and diameter of testis were measured ,histological slides were prepared and examined for histopatho-logical change and measurement of seminiferous tubules diameter, germinal epithelium thickness and interstitial space were done . Results: the current study found anogenital distance decrement and histopatho-logical changes in mice offspring testis as hemorrhage or congestion of blood vessels ,irregular shapes of seminiferous tubules with atrophy, detachment of spermatogenic cells from basement membrane, death of spermatogenic cells and destruction of Sertoli and leydig cells ,it is also showed wider interstitial tissue and thinner germinal epithelium. Conclusions: The present study indicate study that progesterone injected in mice at dose 10.2 mg/kg /day (the equivalent human dose allover gestation was em-bryotoxic and teratogenic, it may cause feminization of male offsprings repre-sented by decrement the anogenital distance in mice and hypospadias in human .
Background: Both clomiphene citrate and tamoxiphene citrate, as an anti estrogen, is the most common prescribed medication for male infertility.In humans, ant estrogens interfere with the normal negative feedback of sex steroids at the hypothalamus and pituitary, thereby increasing endogenous gonadotropin releasing hormone (GnRH) secretion from the hypothalamus and follicle stimulating hormone (FSH) and luteinizing hormone (LH) secretion directly from the pituitary. Objective: The objective of this study was to investigate the effect of clomiphene citrate (CC) and tamoxiphene citrate (TC) administered to male mice on quality of sperm motility and activity. Materials and Methods: Ninety six male mice were divided into two major groups, and every one of these groups was subdivided into three minor groups involving control and two treated groups. In the CC study, 48 mice were administrated orally 0, 0.0125 mg and 0.025 mg as control (G 1), low dose (G 2) and high dose (G 3) for 42 days. While, in the TC study, 48 mice were administrated orally 0, 0.01 mg and 0.02 mg as control (G 1), low dose (G 2) and high dose (G 3) for 42 days. Then, the male mice were sacrificed, both vas deferens were collected and assessment sperm motility and activity. Results: The results of present study appeared that the use high dose of CC or TC significantly increment (P<0.05) sperm motility and activity as compared to control groups. Conclusions: Based on the results of this study, it can be concluded that the administration of high dose of either CC or TC increases sperm motility and activity.
Background: Diabetes has been found to induce various subtle molecular changes important for sperm quality and function: The mammalian spermatozoa are rich in polyunsaturated fatty acids, making them particularly sensitive to the deleterious effects of lipid peroxidation, which may result in irreversible loss of motility and a low level of fertilizing capacity. An antioxidant, glutathione (GSH) a polypeptide is important in biological oxidation-reduction reactions and improves sperm motility. Objective: The study was aimed to investigate the effects of GSH injection on healthy and diabetic male mice fertilization potential in vitro following in vitro fertilization (IVF). Materials and Methods: Inducing diabetes in mice through intra peritoneal alloxan injection. The treatment with GSH divided into two periods 10 and 20 days, studying the in vitro fertilization outcomes. Results: Glutathione daily IV injected in a period of 10 to 20 days for the diabetic induced male mice significantly increase the sperm concentration and motility and decrease the abnormal and dead sperms percentages in treated group compared to untreated group. The Fertilization rate was significantly (P<0.05) increased in mice treated with GSH compared to untreated one. Conclusion: Glutathione injections may decrease the oxidative stress caused by diabetes and enhance the in vitro fertilization potentials in male mice.
Background: Carnitines are widely distributed in nature and their potential health benefits have been popularized. The carnitines exert a substantial antioxidant action. It is often sold as a nutritional supplement. The use of carnitine showed some promise in treatment of male infertility. Objectives: This study was designed to investigate the effects of L-carnitine (LC) administered to pregnant mice on some reproductive parameters of male offspring. Methods: Ninety mature male offspring mice (age: 6 weeks) were divided originally into two groups depending on the pregnant mothers were administered either 0.5 mg/Kg L-carnitine (Treated group) or distilled water (Control group) throughout pregnancy period. Whole body and testicular weight, diameter of seminiferous tubules, thickness of spermatogenic cell layers, levels of serum gonadotropins and sperm parameters were assessed. Results: In the present study, weight of whole body and testes of the male mice offspring group where mothers treated with 0.5 mg/Kg L-carnitine throughout gestation period was significantly increased (P<0.05) as compared to the control group. Further, significant increment (P<0.05) was observed in the thickness of spermatogenic cell layers and diameter of seminiferous tubules for the treated group as compared to the control group. Also, levels of serum follicle stimulating hormone (FSH) and Luteinizing hormone (LH) in the treated group showed significant elevation (P<0.05) as compared to the control group. Sperm parameters for the treated group were enhanced significantly (P<0.05) as compared to the control group. Conclusion: Administration of low dose of L-carnitine to pregnant mice improved reproductive performance of male offspring. Further molecular studies are recommended to investigate the effects of L-carnitine administered to pregnant mice on quality and quantity of acrosomal enzymes for male offspring.
In present study, it was investigated the effect of clomiphene citrate on the ovaries reproductive hormones and embryos of mature female mice, were studied. Female mice treated with (5, 10,50 mg/kg ) daily for 7 days. Results cleared that cross section showed a significant increase (p<0.05) in multi follicular (different numbers )on the right and left ovaries of female mice. In other hand; there were a significant elevation (p<0.05) in the follicle stimulation hormone(FSH), estrogens and progesterone concentration, while, no significant changes were noticed in luteinizing (LH). Conclusions: Clomiphene citrate is the best initial treatment especially in relevance with ovulatory problems (dysfunction), and has a super stimulatory effect on ovulation, thereby increasing the number of recruited follicles in albino female mice rather than affecting the follicular steroidogenic function, and its induce multi follicle ovum forming. Similarly, it has positive affection on gonadotropene hormones, eventually it leads to a twin pregnancy. Combined c with appropriately timed IUI, Clomiphene citrate treatment also increases cycle fecundity in couples with unexplained infertility.
Background: Among various natural therapeutic remedies, Aloe vera, a medical plant widely used in food supplements, beverages, pharmaceutical and cosmetics. Aloe vera has been widely reported for its numerous medicinal effects. Objectives: The present investigation was carried out to study the histological changes in the mice testis consumed low doses of Aloe vera leaf gel extracts. Methods: Forty immature male Swiss Webster mice divided into two equal groups (experimental and control) (G and C respectively). The experimental group (G) was given 10 µl of Aloe vera extract orally for 21 days. While the control groups (C) were given by the same dose and rout of administration with normal saline only. After Six weeks (around puberty) the male were sacrificed to get their testes; each testis was fixed. Then histological sections with a thickness of 5 microns were prepared. Results: Histological studies of mice testes from groups that consume low dose Aloe vera extracts showed enhanced the entire structure of spermatogenic layer of semineferous tubules that composed of extensive normal arranged germ cells layer. A significant increase in the numbers of spermatogonia, primary spermatocytes and spermatids, rates of normal supporting (Sertoli cells) and Leydig's cells. A significant increase in the rate of height of epithelial cells, and rates of sperms concentration in the semineferous tubules were observed too. Conclusion: Using low dose of Aloe vera extract enhanced the histological structure of male mice testis and may be useful to produce drugs to improve male fertility.
Monosodium Glutamate (MSG) is the sodium salt of glutamate (simply glutamate, water and sodium) and is widely used as food additive and as flavoring agent to increase appetite. The present study was to evaluate the effect of daily oral admiration of (MSG) (100mg/kg/day) for 30day on reproductive system of males and females Swiss albino mice. Forty albino mice weighting about (25-30kg) were used in the present study. The animal were divided in two groups: control group (10 males and 10 females)(n=20) and treated group(males and females) n=20.The body weight of the animals detected at the beginning and the end of experiment. At 30 days animals sacrificed and ovaries, uterus, testis were removed and weighted, Samples of ovaries, uterus testis fixed in 10%formaline for histological study. The final result show highly significant increase in the body weight and show significant decrease in the weight of ovaries and testis. The histological study in the treated group of testis show suppression of spermatogenesis, degenerate of seminiferous tubules and congestion of blood vessels. The histological changes in the ovaries such as congested blood vessels of medulla, increased atretic follicles and uterus show necrosis in perimetrium , presence of lacunae in the uterine wall structure . Conclusions: Monosodium glutamate has negative effect on reproductive system for each sex. So that will effect on the fertility .Also the increased body weight could lead to increase the incidence of congestive heart diseases and diabetes mellitus.
Background: Metformin is anti-hyperglycemic effect due to decrease of hepatic glucose production. Another effect, leading decrease insulin resistance, regarded a safe drug, treatment of choice for overweight. Objective: To investigate the effects of 3 concentration of MF administered orally to male mice on sperm parameters as model for human being. Materials and Methods: In current study, 80 male mice were taken with age ranging between 1.5-2 month and weights ranging between 25-30 grams males classified into four groups of a control group (G1) and treated group (G2, G3 and G4) doses of MF were employed, 0.2, 0.4, 0.6 mg/mice daily to groups, given orally for 6 weeks and then the animals were scarified. Results Results have revealed a significant difference (P < 0.05) in sperm concentration for 3 groups compared to G1 group. Progressive motility (%) appeared with significant difference (P< 0.05) for G3 group as compared to other treated and G1 group. Furthermore, the result illustrated a significant decreased (P< 0.05) in the abnormal sperm morphology for G3 group compared with treated and control. However, sperm agglutination (%) confirmed that the G3 group exhibited highly statistical significant decrease (p≤0.001) compared to G1, G2 and G4. Conclusions From results of the present study, it was concluded that the administration of MF doses reduce sperm concentration .while, 0.4mg dose improve certain sperm parameters.
Lead is a heavy metal toxicant, present widely in the environment and workplaces. Zinc has been shown to reduce the toxicity of lead. The present experimental animal study was designed to observe the changes in the testes due to excessive use of lead. This study aims to detect the effect of antioxidants (zinc) on the toxicity of high doses of lead on the reproductive organs of male mice embryos compared to the control group as a model for human representative. Thirty mature female mice were used (Swiss-Webster), as a mammalian model. They were divided into three groups, 10 mice/group after labelling them. They were randomly assigned into three experimental groups, and these embryos were processed for histological observations. The recorded results showed a severe disruption in the organization of testicular structure with primordial germ cells severely degenerated with the absence of basal lamina and peritubular myoid cells of the treated group (G1) compared with the control group at day 14 and day 17. The embryo testes of (G2) at day 14 showed irregular testes cords with prominent degenerative changes compared to that of the control group (G3). It was concluded from these results that zinc sulphate plays a significant role in the improvement of histological damage of the testes belonging to mothers injected with lead acetate and protects the reproductive organs from injury during lead toxicity.
Back ground: Optimal IVF and embryo culture conditions depend on the composition of culture media being the most important determinants of successful in vitro interaction of the gametes and subsequent embryo development. ATP is fundamental factor to maintain the life, by providing energy, and controlling the cell function and metabolism. Objective: To investigate the effect ATP supplied to culture medium on fertilization rate and in mice as model for human being. Materials and Methods: The female mice (90) were superovulated using superovulation program (SOP) to produce large number of oocyte were divided into three groups, G1 inseminated with vassal sperm in vitro alone (control) , G2 inseminated with vassal sperm in vitro using SMART enriched with ATP(1.25mM). While, G3 inseminated with vassal sperm in vitro using SMART medium enriched with ATP (2.5mM). Mouse spermatozoa were collected from both vas deferens. Then sperm parameters were assessed after 30 min. IVF technique was performed for 3 groups. Results: The results of the present study appear, significantly increment (P<0.05) in the IVF (%) was observed when using 2.5 mM ATP as compared to 1.25 mM ATP and control group. Conclusions: The result showed that addition of high ATP concentration (2.5 mM) enriched to the culture medium improved percentage of in vitro fertilization.
The toxic effect of drugs and environmental chemicals on the human reproductive system has become a major health concern. Lead is recognized as the most dangerous of the toxic metals and a major threat to the biological systems of both human and animals. In this study we detect the effect of two types of antioxidants: flaxseed and zinc, on the toxicity of low dose of lead acetate on reproductive organs of male mice, this study was conduct. Two groups of mature male mice,exposed to low dose of lead, were administered either zinc sulphate (0. 5mg/kg body weight/day) or flaxseed oil (2.5% of total daily food intake), for 6 weeks. The results showed that lead caused a significant reduction in the total body weight, testicular weights & adverse effects on sperm parameters, while the concomitant administration of antioxidants caused elevation in these weights with significant improvement in sperm quality as compared to the only lead treated group. It is concluded that lead, like all other heavy metals, could induce oxidative stress and the concomitant administration of antioxidants (zinc or flaxseed) can ameliorate the toxic effect of lead on reproduction.
Background: Achillea millefolium, (Asteraceae) is flowering plant which is popularly known as yarrow. It has been used in folk medicine to treat complaints such as inflammation, pain, wounds, hemorrhages and gastrointestinal disturbances. Objectives: To study the histological changes in uterus and reproductive hormones in female mice delivered to mothers treated with Achillea extract during pregnancy. Materials and Methods: Seventy pregnant female mice at age of six weeks were used as a model for this study. The animals were divided into two groups: control (C) (35), and experimental (G) (35) groups. The experimental group was given 1.5 mg/kg alcohol extract of Achillea millefolium dissolved in 1ml distilled water orally for the whole pregnancy, while the (C)was given distilled water only in the same amount and for the same period of time. The number and the body weight of the delivered offspring was recorded, in addition the endometrial thickness, the number and diameter of the uterine glands was measured in the histological sections at puberty. In addition evaluation of FSH, LH and E2 hormones levels were done. Results: The results of this study showed highly significant (p<0.01) decrease in the litter size of the experimental compared to the control group, as well as significant decrease (p<0.05) in the weight of the offspring, the endometrial thickness, the number and diameter of the uterine glands in the (G) compared to the (C). Conclusions: Consumption of low dose Achillea millefolium causes significant decrease in number and weight of the offspring, in addition to its effect on the uterus of the delivered female offspring.
Background: The effects of taking oral contraceptive pills that contain steroid hormones (estrogen and progesterone) during pregnancy on some aspects of fetus and newborn have been previously reviewed. Objectives: The objectives of this study are to detect the effect of using different doses of progestin and estrogen (contraceptive pills OCPs) by pregnant female mice on the gonadal development of their male fetuses, and on their pregnancy outcome. Materials and Methods: Ninety female mice were divided equally into three major groups: two experimental (G1 and G2) and control group according to the level of the dose. Administration of OCPs (either 0.034 or 0.068 mg/kg b. wt. /d dissolved with 0.1ml distilled water) orally once a day, were started at the first day of gestation and continued till day 14 for the experimental groups G1 and G2 respectively. When the female in each experimental and control groups reach day 17 of gestation, 15 animals of each group were sacrificed, whereas the other 15 animals were left to be sacrificed at birth time. Weight and numbers of fetuses were recorded, in addition, histological study for their testes were done. Results: The statistical analysis showed a highly significant (P<0.01) decrease in weights and numbers of fetuses (males and females), and highly significant decrease ( (P<0.01) in the testes diameter of fetuses belonged to mothers treated with normal and double dose of OCPs at day 17 and at birth time. In addition, fetuses belongs to G2 mothers revealed testicular undescending to its normal position and remained adjacent to the kidneys at the upper part of the abdominal cavity in comparison with control group. Conclusion: Administration of steroid hormones orally to pregnant female mice for 14 days causes a highly significant decrease in the weight and number of fetuses at day 17 and at birth time and cause negative effect on the diameter of the fetal testes. The OCPs can inhibit at its high dose, the descending of the testes to its normal location at the pelvic cavity and then to the inguinal canal.
Background: Tribulus terrestris (TT), Phoenix dactilyfera (Pd) and Nasturtium officinale (No) were believed to have fertility-enhancing effects and given by herbalists in Baghdad to men who need to increase their fertility capacity. Objectives: To investigate the possibility that aqueous and ethanolic extracts of the plants mixture can counteract the adverse effect of theobromine on reproductive system of male mic. Materials and Methods: One hundred and twenty mature male mice were injected intraperitoneally with 250 mg/kg/day of theobromine for four weeks. Then the males were treated intraperitonially with different dose levels of aqueous and ethanolic extracts of a mixture of the three plants for four weeks to evaluate their effects on body weight, reproductive organs weight, sperm parameters, hormones level and reproductive performance. Results: Both extracts showed a significant enhancement in all parameters studied. Almost all these results showed a dose dependent pattem with the ethanolic extract being the more effective than aqueous extract in all parameters. Conclusions: Mixture of the three plants seems to counteract the action of theobromine on the reproductive system of male mice through enhancing the concentration and motility of spermatozoa, increasing epididymis and seminal vesicles weight which are an indicator of testosterone production which brought about the stimulation of all male reproductive organs.
Background: Chemotherapy and radiotherapy can destroy or severely reduce spermatogenesis and thereby jeopardize fertility in the long term. There is still no medical treatment that guarantees fertility preservation after chemo- and radiotherapy. Now with recent improvement of assisted reproductive technologies (ART) and possibility of using testicular spermatozoa or epididymal spermatozoa at in vitro fertilization (IVF) by intracytoplasmic sperm injection (ICSI), cryopreservation of testicular tissue is an option in fertility preservation for males who will lose spermatogenic cells as a result of chemoand radiotherapy and for males with azoospermia. Objectives: This study is an attempt to evaluate oxidative DNA damage in the mice testicular tissue after cryopreservation/thawing cycle when using different types of cryoprotectants as well as to investigate the changes that occur in mice testicular tissue after cryopreservation/thawing cycle as a model for human being. Methods: Fifty mature fertile male mice between 8- 12 weeks old were used in the current study. For each mouse, one testis was evaluated histologically and immunohistochemically (using 8-Hydroxy 2'-Deoxyguanosine as marker of oxidative DNA damage) without cryopreservation (control group). The other testis was evaluated histologically and immunohistochemically (using 8-Hydroxy 2'-Deoxyguanosine as marker of oxidative DNA damage) after six weeks of cryopreservation using different types of cryoprotectants (cryopreserved group). Results: The microscopically observation of slides obtained from cryopreserved testis differs according to the type of cryoprotectant (glycerol, 1,2 propanediol and dimethylsulfoxide), in the dimethylsulfoxide group, tissue sections showed no major differences versus control group, but in the histological sections obtained from tissue cryopreserved by glycerol as cryoprotectant showed moderate morphological and structural changes as compared with the control group. While, the tissue samples subjected to 1,2 propanediol as cryoprotectant displayed the severest morphological and structural changes as compared with the control group. Immunohistochemical results of the present study showed a highly significant (P<0.001) increase in oxidative DNA damage in the cryopreserved testis (46.78%, 63.45% and 32.59% represent cryoprotectant glycerol, 1, 2 propanediol and dimethylsulfoxide, respectively) compared with control group (19.27%) after six weeks of cryopreservation. Conclusion: From the results of the current study, it was concluded that there was alteration in testis histology after cryopreservation/thawing cycle and increase the level of oxidative DNA damage after cryopreservation/thawing cycle. As well as dimethylsulfoxide cryoprotectant provide good protection for testis histology and DNA.
Background: Glycyrrhiza glabra(Gg) is a herbal medicine used in the treatment of different syndromes. Recently, the effect of this plant on the reproductive system has been studied. However, its role in in vitro still not clear. Objectives: The present study aims to investigate the possibility of using Glycyrrhiza glabra extract for in vitro sperm direct activation, and its effect on in vivo fertilization rate (FR) and early embryonic development (ED) following intra-peritoneal insemination (IPI). The mice were used as an experimental model for mammals. Materials and Methods: Glycyrrhiza glabra extract (2 mg/ml culture medium) was used for in vitro direct sperm activation technique. The female mice were divided into two groups: spontaneously ovulated (SOM) and superovulated groups (SuOM). Each group was divided into two subgroups, the first: the IPI was accomplished by epididymal sperm activated in vitro by adding 20%Gg to the culture medium. The second subgroup: the IPI is accomplished without adding Gg to the culture medium. Results: In vitro activation of epididymal sperms with 20% Gg has shown positive effects on sperm concentration, sperm motility, and grade activity of progressive forward movement. There was a significant (P<0.05) increase in FR with adding 20%Gg compared with that free of Gg of spontaneously ovulated groups after 24 hours of insemination. The FR in the right oviduct showed highly significant (P<0.001) increment compared to the left. Embryonic development rate significantly ( (P<0.05) increased after 24 and 48 hours of insemination in grouping with adding Gg. The study showed that the quantity and quality of embryos generated from IPI with adding Gg were higher than that of groups inseminated without adding Gg. Conclusion: It is concluded from the results of the present study that adding the 20% Gg to the culture medium of the epididymal sperm and IPI leads to an improvement in certain sperm function parameters and supports the FR in SOM and SuOM with an increase in the embryonic development rate. These data can be utilized for artificial insemination programs.
Monosodium glutamate (MSG) is a widely used flavor enhancer in many foods. However, excessive consumption during pregnancy may adversely affect embryonic development and reproductive functions. This study aimed to investigate the effects of maternal MSG consumption during pregnancy on pregnancy outcomes and the reproductive system of female offspring in mice. Thirty adult pregnant female mice, aged 42–49 days, were used in this study. The animals were equally divided into two groups: an experimental group (G1) and a control group (G2). The experimental group received MSG extract orally at a dose of 1 mg/kg body weight dissolved in 1 ml of distilled water (D.W.) throughout the three weeks of pregnancy, whereas the control group received 1 ml of distilled water alone for the same duration. After delivery, litter size and litter weight were recorded. Forty days after birth, the weights of the female reproductive organs were measured, and the diameters of the ovaries and oviducts were assessed. In addition, blood samples were collected for the evaluation of follicle-stimulating hormone (FSH), luteinizing hormone (LH), and estradiol (E2) levels in both groups. The experimental group showed a significant reduction in litter size and a significant decrease in litter weight compared with the control group. Female offspring born to MSG- treated mothers also exhibited a significant decrease in reproductive organ weight, ovarian diameter, and oviduct diameter. Furthermore, significant reductions in the levels of FSH, LH, and estradiol were observed in the experimental group. Maternal consumption of MSG during pregnancy may negatively affect pregnancy outcomes and impair the development and function of the reproductive system in female offspring.
Background: A mixture of three plants was used in this study: Tribulus terrestris (TT), Phoenix dactylifera (Pd) and Nasturtium officinale (No) which were believed to have fertility enhancing effects. Objectives: To study the effects of the aqueous and ethanolic extracts of the mixture of the three plants on body weight and some reproductive organs parameters in male mice. Material and Methods: Extracts of the mixture of the three plants were injected intraperitoneally at doses of 75, 150 and 300mg/kg/day to male mice for a period of one and two weeks. Body weight and reproductive organs weight were recorded. The height and diameter of the epithelial lining cells of the epididymis and seminiferous tubules were evaluated by the end of the two periods through histological preparations. Result: Both extracts showed a significant increase in body weight and reproductive organs weight as well as the diameter and height of the epithelial lining cells of the seminiferous tubules and epididymis. Conclusion: A dose dependent pattern of effects was noticed in both extracts with more obvious effects resulted by the ethanolic extract.
Background: Citrullus colocynthis(CC) is an herbal medicine used in the treatment of a wide range of diseases. Recently, the effect of this plant on the reproductive system has been studied.However, its role in vitro still unclear. Objective: The present study was designed to investigate the possibility of using CC extract for in vitro sperm direct activation technique, in vitro fertilization(IVF) and early embryonic development using the mice as a model for mammals. Materials and Methods: Citrullus colocynthis extract (0.05mg/ml culture medium) was used for in vitro direct sperm activation technique. The same medium was used for oocytes insemination and for culturing the embryos after 24-48 hours of insemination. The oocytes were collected from superovulated female mice and divided into two groups: first group, 343 oocytes were inseminated and cultured in CC- free Ham's F-12 medium (the control group). The second group, 345 oocytes were inseminated and cultured in 10% CC - Ham's F-12 medium (treated group). Each 4 oocytes were inseminated with the same sperm concentration (1-2 x 10^5 sperm/IVF well). The fertilization rate was recorded after 24 hours of insemination, while embryonic development rate was recorded after 24 and 48 hours of insemination. Results: In vitro activation of epididymal sperms with 10%CC has shown positive effect on sperm concentration, sperm motility, and grade activity of progressive forward movement. There was a highly significant (P<0.004) increase in FR of the treated group (61.5%) compared to control group (50.4%) after 24 hours of insemination. Embryonic developmental rate was significantly increased after 24 and 48 hours of insemination in treated group compared to control group. Conclusion: It concluded that adding the 10%CC to the culture medium of the epididymal sperm and in vitro inseminated lead to improvements in certain sperm function parameters and sustain the FR and early embryonic development rate.
Background: Many studies conducted on the pentoxifylline (PX) and Glycyrrhiza glabra (G.glabra) as motility stimulants showed positive effect on sperm preparation in vitro improving the progressive forward movement. However, it was not known the impact of these stimulants on the nature of genetic material, especially after cryopreservation. Objective: The experiment was designed to find out any harmful effect of a medium containing a mixture of PX and aqueous extract of G.glabra on the sperm DNA before and after cryopreservation. Materials and Methods: Fifty mature fertile male mice 8-12 weeks old were used. Epididymal sperms were obtained from caudal region and prepared in vitro by direct activation technique using four media namely; PX alone, G.glabra alone, a mixture of PX with G.glabra and Ham's F-12 (as control medium). Certain sperm function characteristics were examined as well as evaluation of DNA integrity by acridine orange test and comet assay before and after cryopreservation. Results: The results showed a highly significant (P<0.001) improvement in the sperm forward movement, with a highly significant (P<0.001) decrease in DNA abnormality using acridine orange test and comet assay, following in vitro activation by the four media compared to before activation. Following in vitro activation and cryopreservation, the results of epididymal sperm showed a highly significant (P<0.001) decrease in DNA abnormality by using PX medium alone, G.glabra medium alone and the mixture of PX and G.glabra compared to control medium and the results before cryopreservation. Conclusion: According to the results of present study, it has been found no toxic effect of medium containing PX and/or G.glabra on the epididymal sperms DNA after activation in vitro and cryopreservation using acridine orange test and comet assay. The best result obtained when using a medium containing a mixture of PX+ G.glabra together. These data could be applied for preparation and activation of epididymal and testicular sperms obtained from obstructive azoospermic men.
Background: Many studies has been found that the pentoxifylline (PX) and L-carnitine (LC) as motility stimulants showed a positive effect on the activation of sperm in vitro and improve the forward movement after cryopreservation. Objectives: The present study aim to investigate the possibility of using the motility stimulants(i.ePX,LC and mixture of PX with LC medium) for in vitro sperm activation after cryopreservation of epididymal sperms and their effects in vitro on fertilization rate (FR) and early embryonic development (ED) following in vitro fertilization (IVF) process as a model for obstructive azoospermia in men. Methods: Fifty mature male and Fifty mature female mice, 8-12 weeks old were used. Epididymal sperms were obtained from caudal region and in vitro direct activation technique was done after cryopreservation by using four media namely; PX alone, LC alone, a mixture of PX with LC and Ham's F-12 (as control media). The four media were used for IVF of mature ova and FR with ED were recorded. Results: In vitro activation of epididymal sperms with PX, LC and mixture of PX with LC has shown positive effect on sperm concentration, sperm motility, and grade activity of progressive forward movement after cryopreservation. There was a significant (P<0.05) increase of FR in treated media compared with the control medium after 24 hours of insemination. The study showed that the quality and quantity of embryos. Conclusion: It is concluded from the results of the present study that adding PX, LC and mixture of PX with LC medium to the culture medium of cryopreserved epididymal sperms and IVF leads to an improvement in certain sperm function parameters, supports the FR and early ED rate.
Background: Zygote produce from once a sperm fertilizes an egg cell. Then, the zygote (unicellular) will begin chain of cellular cleavages to produce multicellular mass, its embryo, the differentiated to different tissues and organism. The development of the embryo is called embryogenesis. Coenzyme Q10, is an antioxidant produced in the body. It boosts cellular energy and may enhance the immune system. CoQ10 is present and measurable in seminal fluid, the concentration of CoQ10 directly correlates with both sperm count and motility. It is beneficial in the prevention and treatment a wide range of health problems. Objectives: The present study was aimed to investigate the possibility of using coenzyme Q10 to improvein vitro fertilization (IVF), and early embryonic development (ED) in mice as a model for human being. Methods: Superovulation program was achieved to mature healthy female mice with age 10-12 weeks and weight 24-26 gm. After sacrificing female, oocytes were collected and incubated within CO2 incubator for less than 1 hour. Sperm were collected from vas deference of males. Sperm parameters were assessed after 30 min. ofincubation. Mature oocytes were divided into three groups according to theconcentrations of CoQ10 including G1 (control group; SMART medium only), G2 (treated group; SMART medium enriched with 20 M CoQ10) and G3 (treated group; SMART medium enriched with 40 M CoQ10). IVF technique was performed for 3 groups, and assessment of IVF (%), embryonic development stage (%) and abnormal embryo morphology (%) for each embryo stage. Results: Results of the present study appeared significant increment (P<0.05) in the percentages of IVF for both treated groups as compared to the control groups. Also, significant increase (P<0.0P) in the IVF (%) was observed when using 40 M CoQ10 as compared to 20 M CoQ10. Non significant differences (P>0.05%) in the 8-cells embryo stage were assessed among control and treated groups. Conclusion: From the results of the present study it wasconcluded that the coenzyme Q10 (40µM) enriched to the culture medium improved percentage of in vitro fertilization and no effect on embryonic development.
Background : progesterone used as a therapeutic agent in human pregnancy. The sufficient evidence to hypothesize that progesterone may have teratogeniceffect on the reproductive system of female offspring. Objectives: This study was established to explore the individual impact of differ ent doses of progesterone during intrauterine period on reproductive system of female mouse, and on some reproductive parameters. Materials and Methods: ninety adult female mice (8-10 weeks) and weight (25-28) gm divided into three groups. Control group (G1) was treated daily (IM) injection with sesame seed oilfrom 1-14 day of pregnancy, and other two groups that treated with different doses of progesterone G2 (0.4mg/kg. B.wt/day), G3 (0.8mg/kg. B.wt/day), daily (IM) injection of progesterone from 1-14 day of pregnancy then selecting of Female offspring and sacrificed at age zero day, one month, two month. Parameter analysis involvedanogenital distance , body and ovary weights, , length of epithelial cells, number and diameter of follicles (Primordial , Primary , Secondary and Mature antral) , corpus luteum and using histological section by (motic image plus) and hormonal assay including proges terone and Estrogen. Results: The results of this study demonstrated that at one month, two months after birth, there was a highly significant increase P< 0.01 in theanogenital dis tance . The statistical analysisshowed no statistical significant difference in the body and ovary weights , at one month after birth, The statistical analysisshowed highly statistically significant decreased(P< 0.01 ) in both G2 and G3 in the number of follicles . At one,two months after birth, there was a highly significant decreased (P< 0.01 ) in both G2 and G3 in the number ofcorpora lutea. At age two month, there was a highly significant decreased (P< 0.01 ) in both G2 and G3 in the height of epithelial cell layer.There was a highly significant decreased (P< 0.01 ) in both G2 and G3 in the diameter of follicles (Primordial , Primary , Secondary and Mature antral) follicles . There was a highly significant decreased (P< 0.01 ) in both G2 and G3 in Estrogen and Progesterone levelof female off spring when compared with the control group G1. Conclusion: The results showed higher doses of progesterone for long period in pregnancy can impact some reproductive parameters of female offspring mice. Keywords : Progesterone, corpora lutea, Estrogen,anogenital distance
Background: Citrullus colocynthis (CC) is an herbal medicine used in the treatment of a wide range of diseases. Recently, It has been studied on in vitro activation of mice sperms with no research concern the effect of this plant on the DNA normality following in vitro preparation of human semen samples. Objectives: The present study was aimed to examine the effect of adding CC in the medium used for in vitro sperm activation of asthenospermic men and related factors and to found out the effect of CC on the DNA status following the activation. Materials and Methods: Citrullus colocynthis aqueous extract (0.01mg/ml culture medium) was used for in vitro sperm activation . One hundred and ten semen samples were divided into two groups, the first group activated in vitro by adding CC extract to the culture medium Ham's F-12 (the treated group) and, the second group sperm activated in vitro with Ham's F-12 alone ( the control group). Results: In vitro activation of sperms with aqueous extract of CC has shown positive effect on sperm concentration, sperm motility, and grade activity of progressive forward movement. There was a significant (P<0.05) increase in certain sperm function parameters of asthenozoospermic in treated group compared with the control group .The study showed that the DNA fragmentation resulted from treated group were lower than that of control group. Conclusions: According to the results of present study, adding aqueous extract of CC to the human sperms activation culture medium leads to an improvement in certain sperm function parameters of asthenozoospermic men with no harmful effect on the human sperms DNA with decrease in DNA denaturation.