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Item Metadata only Structural changes in rat testis, epididymis and spermatozoa following the treatment with gossypol(Mahidol University. Mahidol University Library and Knowledge Center, 1986) Vipavadee Chaisuksunt; Prasert Sobhon; Kanok Pavasuthipaisit; Chaitip Wanichanon; Pairote PrempreeItem Metadata only Site of melatonin action in rat testis(Mahidol University. Mahidol University Library and Knowledge Center, 2024) Hattaya Vimala; Boonsirm Withyachumnarnkul; Chatchai Trakulrungsi; Pairote PrempreeItem Metadata only Testicular microvascularization in common tree shrew (Tupaia glis)(Mahidol University. Mahidol University Library and Knowledge Center, 2024) Wisuit Pradidarcheep; Reon somana; Kanok Pavasuthipaisit; Boonsirm Withyachumnarnkulbranching from the abdominal aorta. In the spermatic cord it become convuluted and surrounded by pampiniform plexus. When the artery emerges from the pampiniform plexus at rostro-medial pole of the testis, it courses caudally along the medial border... seminiferous tubule. These capillaries join each other to form small and then larger venules which course along the ventral and dorsal surfaces of the testis. The venules on the ventral and dorsal surfaces drain the blood into the collecting veinsItem Metadata only The influence of photoperiod on growth an dreproductive organs of male giant freshwate prawns, Macrobrachium rosenbergii di Man(Mahidol University. Mahidol University Library and Knowledge Center, 1988) Anchalee Pongsa-asawapaiboon; Boonsirm Withyachumnarnkul; Boonserm Poolsanguan; Chaitip Wanichanonmonitored and all prawns were individually weighed once every two weeks. At the end of the experiment, the growth rate, molt frequency, molt interval, testis weight, andmicroscopic features of the testis and vas deferens were compared. In addition, sodium..., is not significant by statistical analysis. The body weight gain during the 22 week-period was also nonsignificantly higher in the L16:D8 animals. The absolute and relative testis weights of the L16:D8 animals were lower than those of the L8:D16 animalsItem Metadata only Structure of the testes of Rana catesbeiana and their changes during development and seasonal variation(Mahidol University. Mahidol University Library and Knowledge Center, 2023) Aungkura Jerareungrattana; Praset Sobhon; Prapee Sretarugsa; Jittipan Chavadej; Suchart UpathamThe testis of fully mature bullfrog, Rana catesbeiana were studied by light and transmission electron microscopes. The germ cells in the developing testis can be classified into twelve stages based on the nuclear characteristics. Primary.... During development of the testis, sex cords appear for 2 months old. When 4 months old definitive testis can be observed. Primary spermatogonia appears during four-month-old while spermatocytes and seminiferous tubules are present in the fifth monthItem Metadata only Histology of testis and brood pouch of brooding and non-brooding male seahorses, Hippocampus kuda(Mahidol University. Mahidol University Library and Knowledge Center, 2004) Parichart Laksanawimol; Praneet DamrongpholItem Metadata only Lipid peroxide formation in liver and skeletal muscle in the rat after exercise and ethanol treatment(Mahidol University. Mahidol University Library and Knowledge Center, 1990) Naruemon Saengumyoun; Thirayudh Glinsukon; Thyon Chentanez; Chaivat Toskulkao, lung, kidney, testis and serum was also detected in order to study other sources of lipid peroxide in the body. The rat swam for 30 min (with weigh resistance of 3% BW) prior to administration of two oral doses of 40% ethanol (4.0 g/kg BW each) at 0... and 3 hours. Both exercise program and ethanol treatment caused a maximum increase in the lipid peroxide level in the brain (168.55%, P<0.001), heart (165.36%, P<0.001), liver (89.47%, P<0.05), kidney (110.45%, P<0.05), testis (159.3%, P<0Item Metadata only Purification and characterization of enzymes involved in DNA methylation from rice(Mahidol University. Mahidol University Library and Knowledge Center, 2024) Palika Kanjanavechakul; Jarunya Ngernprasirtsiri; Jisnuson Svasti; Saovanee Dharmmasthitiif stored at 4 C in buffer containing specific protease inhibitors (pepstatin A, leupeptin and chymostatin) and several preservative agents (sucrose, PEG). The apparent Km value for salmon testis DNA substrate was 50 µg/ml. The efficient methylation of both..., chymostatin) และ preservative agent (sucrose, PEG) ไม่สามารถช่วย รักษา activity ของเอนไซม์ จากการศึกษา enzyme kinetic พบว่า Km ของเอนไซม์นี้ต่อ salmon testis DNA เท่ากับ 50 µg/ml เอนไซม์นี้สามารถทำงานได้ดีเมื่อใช้ substrate เป็น cytosine un-methylated DNA ที่Item Metadata only Inhibition of hamster sperm capacitation and fertilization by piperine(Mahidol University. Mahidol University Library and Knowledge Center, 2023) Worapot Sriwattana; Pawinee Piyachaturawat; Chumpol Pholpramool; Praneet Damrongpholwhen compared to control group. The weight of liver, testis and seminal vesicle were not altered whereas the kidney weight was slightly increased by piperine. The spermatozoa obtained from piperine-treated hamsters were assessed for their fertilizingItem Metadata only The gametogenic processes in a Thai abalone, haliotis asinina linnaeus(Mahidol University. Mahidol University Library and Knowledge Center, 1998) Somjai Apisawetakan; Prasert Sobhon; Chaitip Wanichanon; Maleeya Kruatrachue; Suchart Upathamlate stage cells, i.e., stage IV and V oocytes in ovary and spermatids and spermatozoa in testis. The spawning of gamete cells occurs at least twice during each year: from March to April and August to October in female and with similar interval