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Page 1
Three-dimensional analysis of connexin 43 gap junction in the ex vivo rat seminiferous tubules: short-term effects of hormonal effectors.
Gilleron J, Carette D, Carpentier F, Segretain D, Pointis G. Gilleron J, et al. Among authors: pointis g. Microsc Res Tech. 2009 Nov;72(11):845-55. doi: 10.1002/jemt.20731. Microsc Res Tech. 2009. PMID: 19455679
Cx43 levels and coupling were stage-dependent with higher values at stages VI-VIII of spermatogenesis and markedly reduced at stages IX-X. Short-term exposure of seminiferous tubule fragments at stages VI-VIII and of the 42GPA9 Sertoli cell line transfected with a Cx43-GFP …
Cx43 levels and coupling were stage-dependent with higher values at stages VI-VIII of spermatogenesis and markedly reduced at stages IX-X. S …
Disappearance of beta-adrenergic response of human myometrial adenylate cyclase at the end of pregnancy.
Litime MH, Pointis G, Breuiller M, Cabrol D, Ferre F. Litime MH, et al. Among authors: pointis g. J Clin Endocrinol Metab. 1989 Jul;69(1):1-6. doi: 10.1210/jcem-69-1-1. J Clin Endocrinol Metab. 1989. PMID: 2543686
Compared to the preterm response, at term the myometrial adenylate cyclase response to 10(-4) mol/L guanyl-5'-imidodiphosphate was decreased, which may reflect a decrease in the amount of functional Gs. Altogether these changes are consistent with reduced Gs coupling to th …
Compared to the preterm response, at term the myometrial adenylate cyclase response to 10(-4) mol/L guanyl-5'-imidodiphosphate was de …
Time-related effects of arginine vasopressin on steroidogenesis in cultured mouse Leydig cells.
Tahri-Joutei A, Pointis G. Tahri-Joutei A, et al. Among authors: pointis g. J Reprod Fertil. 1988 Jan;82(1):247-54. doi: 10.1530/jrf.0.0820247. J Reprod Fertil. 1988. PMID: 3339582
These results indicate that AVP can exert a dual effect on mouse Leydig cells: stimulatory on basal testosterone accumulation during short-term exposure (24 h) and inhibitory on the response to hCG stimulation after long-term treatment (72 h). ...
These results indicate that AVP can exert a dual effect on mouse Leydig cells: stimulatory on basal testosterone accumulation during short- …
Absence of LHRH effect on testosterone production by Leydig cells from fetal mouse testis.
Pointis G, Latreille MT. Pointis G, et al. J Steroid Biochem. 1986 Jan;24(1):307-10. doi: 10.1016/0022-4731(86)90070-1. J Steroid Biochem. 1986. PMID: 3009981
The effect of LHRH and one of its agonist (des-gly10 (D-Ala6)-LHRH-ethylamide) on the functional activity (testosterone and progesterone production) of purified fetal mouse Leydig cells was examined in short-term primary culture and under dynamic conditions. The continuous …
The effect of LHRH and one of its agonist (des-gly10 (D-Ala6)-LHRH-ethylamide) on the functional activity (testosterone and progesterone pro …
Regulation of testosterone production in Leydig cells from fetal mice under dynamic conditions: effect of human chorionic gonadotrophin and 8-bromo-cyclic AMP.
Pointis G, Latreille MT. Pointis G, et al. J Endocrinol. 1985 Dec;107(3):409-14. doi: 10.1677/joe.0.1070409. J Endocrinol. 1985. PMID: 2999284
The temporal release of testosterone by Leydig cells from 18-day-old mouse fetuses in response to human chorionic gonadotrophin (hCG) and to 8-bromocyclic AMP (8-bromo-cAMP) was investigated under short-term incubation (180 min) conditions. A rapid and large increase in te …
The temporal release of testosterone by Leydig cells from 18-day-old mouse fetuses in response to human chorionic gonadotrophin (hCG) and to …
Effect of maternal progesterone exposure on fetal testosterone in mice.
Pointis G, Latreille MT, Richard MO, D'Athis P, Cedard L. Pointis G, et al. Biol Neonate. 1984;45(4):203-8. doi: 10.1159/000242005. Biol Neonate. 1984. PMID: 6713034
The testes of fetuses from progesterone-exposed mothers produced in vitro less testosterone than those of controls (p less than 0.01). These results show that both long- and short-term maternal exposure to pharmacological concentrations of progesterone reduce testosterone …
The testes of fetuses from progesterone-exposed mothers produced in vitro less testosterone than those of controls (p less than 0.01). These …
Hormonal regulation of testosterone production in short-term primary culture of fetal mouse Leydig cells.
Pointis G, Rao B, Latreille MT, Cedard L. Pointis G, et al. J Steroid Biochem. 1984 Jan;20(1):525-8. doi: 10.1016/0022-4731(84)90266-8. J Steroid Biochem. 1984. PMID: 6368987
Short-term primary culture of Leydig cells were prepared from 18 day old fetal mouse testes. ...Pre-culture (24 h) of fetal Leydig cells in the presence of 100 mIU hCG desensitized these cells to a subsequent stimulation by hCG. This is the first report of a short-term …
Short-term primary culture of Leydig cells were prepared from 18 day old fetal mouse testes. ...Pre-culture (24 h) of fetal Leydig ce …