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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 veinsPublication Metadata only Effect of vitamin A deficiency on the testis-specific histone TH2B of the rat(1984-01-01) Jittaporn Wattanaseree; Jisnuson Svasti; Pim Bubpaniroj; Viroj Mitranond; Mahidol UniversityThe effect of vitamin A deficiency on rat testis was studied biochemically and histo-logically. The earliest change in nuclear basic proteins was a decrease and disappearance of the testis-specific protein (TP); the disappearance approximately... coincided with cessation of growth. At later stages of deficiency, the testis-specific histone TH2B was markedly reduced and in some cases disappeared, as did the TH1 histone band. Histological studies indicated that the loss of TH2B and TH1 requires aPublication Metadata only Reproductive organ of blow fly, Chrysomya megacephala (diptera: Calliphoridae): Ultrastructural of testis(2011-10-11) Kabkaew L. Sukontason; Tarinee Chaiwong; Urai Chaisri; Hiromu Kurahashi; Michelle Sanford; Kom Sukontason; Chiang Mai University; Ubon Rajathanee University; Mahidol University; National Institute of Infectious Diseases; Texas A and M UniversityThis work presents the ultrastructure of testis of the medically important blow fly, Chrysomya megacephala (Fabricius) (Diptera: Calliphoridae) using light microscopy and electron microscopy. Reproductive organ of males was dissected to determine... the testis in the pupal stage, 3-day-old flies and 7-day-old flies and observed under scanning electron microscopy (SEM) and transmission electron microscopy (TEM). SEM displayed a smooth surface which is occasionally penetrated by tracheoles. TEMItem Metadata only Cloning, characterization and expression of Vasa-like gene in the germ cells of giant freshwater prawn, Macrobrachium Rosenbergii(Mahidol University. Mahidol University Library and Knowledge Center, 2023) La-Iad Nakkrasae ; Praneet DamrongpholPublication Metadata only Structural differences between somatic H2B and testis-specific TH2B histones of the rat(1984-08-01) T. Yongvanich; J. Svasti; Mahidol UniversityTestis-specific histone TH2B from rat testis showed a very similar tryptic peptide map to somatic H2B from rat liver, indicating a common evolutionary origin. However, 5 peptide differences were detected between the 2 proteins, and the amino acidItem 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 animalsPublication Metadata only Immunohistochemical detection of GnRH-like peptides in the neural ganglia and testis of Haliotis asinina(2014-02-01) Parinyaporn Nuurai; Jeerawan Primphon; Tawanchay Seangcharoen; Yotsawan Tinikul; Chaitip Wanichanon; Prasert Sobhon; Burapha University; Mahidol UniversityGonadotropin releasing hormone (GnRH) is a peptide that is conserved in both vertebrate and invertebrate species. In this study, we have demonstrated the distribution pattern of two isoforms of GnRH-like peptides in the neural ganglia and testis... of the pleuropedal ganglia. In the testis, only octGnRH-ir was found primarily in the granulated cell and central capillaries within the trabeculae. These results suggest that multiple GnRH-like peptides are present in the neural ganglia which could be the principalItem Metadata only Evidence for NR2F2/COUP-TFII involvement in human testis development(2024-12-01) Wankanit S.; Zidoune H.; Bignon-Topalovic J.; Schlick L.; Houzelstein D.; Fusée L.; Boukri A.; Nouri N.; McElreavey K.; Bashamboo A.; Elzaiat M.; Wankanit S.; Mahidol UniversityNR2F2 encodes COUP-TFII, an orphan nuclear receptor required for the development of the steroidogenic lineages of the murine fetal testes and ovaries. Pathogenic variants in human NR2F2 are associated with testis formation in 46,XX individuals..., however, the function of COUP-TFII in the human testis is unknown. We report a de novo heterozygous variant in NR2F2 (c.737G > A, p.Arg246His) in a 46,XY under-masculinized boy with primary hypogonadism. The variant, located within the ligand-binding