The aim of this study was to determine the effect of chemotherapy (vincristine and vinblastine) on the fertility and sex hormones level of female mice. Twenty four female albino mice were divided into three equal groups. The First group injected with vincristine 0.05 mg/kg intraperitoneally daily for 3 weeks. The second group injected with vinblastine 0.05 mg/kg intraperitoneally daily for 3 weeks. The third group treated with normal saline intraperitoneally daily for 3 weeks as control group. Blood samples were collected by using heart puncture within plastic syringes and transferred to plastic tubes. Blood centrifuged and serum was harvested for hormonal assay. The animals in each group were killed by dislocation of cervical vertebrate in third week of the treatment. Ovaries weighed and fixed with Bouin solution for histological study. Results showed significantly (P<0.05) decreased in ovaries weight on groups treated with vincristine and vinblastine as compared with control group. The mean numbers and diameters of primary, secondary follicles and corpus luteium, and hormones level [follicular stimulating hormone (FSH), lutenizing hormone (LH), estrogen and progesterone] were significant declined in groups treated with vincristine and vinblastine as compared with control group. Results indicated that fertility and sex hormones level reduced in females treated with chemotherapy drugs vincristine and vinblastine

The aim of this project was to study the in vitro effect of antineoplastic drugs (vincristine and vinblastine) on mice spermatozoa. Eighteen adult (age 8-9 weeks) male mice were divided into three groups equally. The animals in each group were slain by cervical dislocation, the testes were removed and two tails of epididymides isolated. Spermatozoa were obtained from the two tails of epididymides by mincing in 500 µl TCM-199.The first group non-treated (unadded) as a control group, second group added 10 µg/ml of vincristine to TCM-199 and the third group added 10 µg/ml of vinblastine to TCM-199. After 10 minutes from added of vincristine and vinblastin measured the following test: spermatozoa activity, percentage dead spermatozoa and morphological abnormalities of spermatozoa. The obtained results indicated that vincristine and vainblastine showed significant reduction in activity, while increased in percentage of dead/live spermatozoa and morphological abnormalities of spermatozoa compared with the control group. Moreover, the data showed that vincristine and vinblastin had effect on spermatozoa in vitro.

Methotrexate commonly used to treat cancer and causes reproductive damage in mice. The aim of this research is to study the effects of salvia aqueous extract on some parameters of sperms and histopathological changes in testis of mice treated with methotrexate. Twenty-four adult albino male mice were divided into three groups, (8 mice in each group) First group was negative control received normal saline intraperitoneally, while second group was treated with50 μg/kg, for 35 days intrapritoneally (ip). The third group was treated with methotrexate (50 μg/kg) also (ip) and extract of salvia 85 mg/kg for 35 days. The results showed significant (P<0.05) decrease in sperms motility , increased percentage of dead sperms and abnormalities of sperms in mice treated with MTX, there was significant (P<0.05) decrease in diameters of seminiferous tubules, primary spermatocytes and spermatids, increased interstitial spaces as compared with control, while in the third group result showed significant (P<0.05) increase in sperms motility , decreased percentage of dead and abnormalities of sperms and significant (P<0.05) increase in diameters of seminiferous tubules, primary spermatocytes and spermatids and decrease interstitial spaces compared with first and second groups.

During cryopreservation, cells and tissue undergo dramatic transformation in chemical and physical characteristics. Thawing process is also an important step since the cryoinjury is not limited to the freezing process but may also occur during the thawing process. Laser by its photo-stimulation effect can improve the resistance to cooled storage of some human sperm and this will lead to improvement in the quality of frozen semen and in the potential of sperm fertilization. The objective of this study is to use laser as a method of thawing and its effect on human sperm motility and DNA integrity versus the thawing through room temperature. This prospective study carried on 70 cryopreserved semen samples. Each sample was prepared by centrifugation procedure, and divided into 2 parts, freezed and thawed by laser irradiation till melting for one part and by room temperature for other. The DNA integrity and sperm motility were assessed before vitrification and after the two methods of thawing. The results of cryopreserved semen samples showed that laser irradiation thawing has significantly increased sperm motility as well as a significant decreased DNA fragmentation (P< 0.05) versus room temperature thawing. Conclusion(s): Laser irradiation thawing of post freezing sperm improves post thaw motility and DNA integrity.

412 primary ova were used in the study of in vitro fertilization, these ova were collected from ovaries samples of does at different stages of oestrous cycle collected from abattoirs.These follicles were classified according to their size into large follicles (> 2-6 mm) and small follicles (1-2 mm). Ova aspirated from these follicles were evaluated depending on the presence or absence of cumulus oophorus cells and on the presence of the first polar body. The aspirated ova from large and small follicles were maturated in tissue culture medium 199 to study their ability of maturation.. The microdrops technique from tissue culture (Medium 199) and granulosa cell co-culture technique were used for the maturation of ova, also the in vitro fertilization was inducted in these ova with the sperm which were capacitated in Bracket Medium. The results showed that the highest rate for ova aspiration and the highest rate of ova surrounded by cumulas oophorus were from the large, follicles. The size of follicle has a significant influence on the degree of ova growth and maturation. The results showed the absence of significant differences in the efficacy of two techniques used in the ova maturation and their ability of fertilization.