Ptak A - Search Results

1

The action of low- and high-chlorinated biphenyl mixture on prepubertal porcine ovary: steroid secretion and cells apoptosis.

Gregoraszczuk EL, Zemla M, Ptak A, Grabic R. Gregoraszczuk EL, et al. Among authors: ptak a. Endocr Regul. 2005 Jun;39(2):33-41. Endocr Regul. 2005. PMID: 16229153

2

Growth hormone and insulin-like growth factor-I action on progesterone secretion by porcine corpora lutea isolated at various periods of the luteal phase.

Ptak A, Gregoraszczuk EL, Rzasa J. Ptak A, et al. Acta Vet Hung. 2003;51(2):197-208. doi: 10.1556/AVet.51.2003.2.8. Acta Vet Hung. 2003. PMID: 12737047

3

Effect of PCB 126 and PCB 153 on incidence of apoptosis in cultured theca and granulosa cells collected from small, medium and large preovulatory follicles.

Gregoraszczuk EL, Sowa M, Kajta M, Ptak A, Wójtowicz A. Gregoraszczuk EL, et al. Among authors: ptak a. Reprod Toxicol. 2003 Jul-Aug;17(4):465-71. doi: 10.1016/s0890-6238(03)00042-x. Reprod Toxicol. 2003. PMID: 12849859

4

In vitro effect of leptin on steroids' secretion by FSH- and LH-treated porcine small, medium and large preovulatory follicles.

Gregoraszczuk EŁ, Wójtowicz AK, Ptak A, Nowak K. Gregoraszczuk EŁ, et al. Among authors: ptak a. Reprod Biol. 2003 Nov;3(3):227-39. Reprod Biol. 2003. PMID: 14688823

5

Effect of growth hormone and insulin-like growth factor-I on spontaneous apoptosis in cultured luteal cells collected from early, mature, and regressing porcine corpora lutea.

Ptak A, Kajta M, Gregoraszczuk EL. Ptak A, et al. Anim Reprod Sci. 2004 Feb;80(3-4):267-79. doi: 10.1016/j.anireprosci.2003.07.006. Anim Reprod Sci. 2004. PMID: 15036503

6

Estrus cycle-dependent action of leptin on basal and GH or IGF-I stimulated steroid secretion by whole porcine follicles.

Gregoraszczuk EL, Ptak A, Wojtowicz AK, Gorska T, Nowak KW. Gregoraszczuk EL, et al. Among authors: ptak a. Endocr Regul. 2004 Mar;38(1):15-21. Endocr Regul. 2004. PMID: 15147234

7

Effect of single and repeated in vitro exposure of ovarian follicles to o,p'-DDT and p,p'-DDT and their metabolites.

Wójtowicz AK, Gregoraszczuk EL, Ptak A, Falandysz J. Wójtowicz AK, et al. Among authors: ptak a. Pol J Pharmacol. 2004 Jul-Aug;56(4):465-72. Pol J Pharmacol. 2004. PMID: 15520502 Free article.

8

Comparison of the actions of 4-chlorobiphenyl and its hydroxylated metabolites on estradiol secretion by ovarian follicles in primary cells in culture.

Ptak A, Ludewig G, Lehmler HJ, Wójtowicz AK, Robertson LW, Gregoraszczuk EL. Ptak A, et al. Reprod Toxicol. 2005 May-Jun;20(1):57-64. doi: 10.1016/j.reprotox.2004.12.003. Reprod Toxicol. 2005. PMID: 15808786

9

Differential accumulation of low-chlorinated (Delor 103) and high-chlorinated (Delor 106) biphenyls in human placental tissue and opposite effects on conversion of DHEA to E2.

Grabic R, Hansen LG, Ptak A, Crhova S, Gregoraszczuk EŁ. Grabic R, et al. Among authors: ptak a. Chemosphere. 2006 Jan;62(4):573-80. doi: 10.1016/j.chemosphere.2005.06.027. Epub 2005 Aug 24. Chemosphere. 2006. PMID: 16122778

10

In vitro effect of leptin on growth hormone (GH)- and insulin-like growth factor-I (IGF-I)-stimulated progesterone secretion and apoptosis in developing and mature corpora lutea of pig ovaries.

Gregoraszczuk EŁ, Ptak A. Gregoraszczuk EŁ, et al. Among authors: ptak a. J Reprod Dev. 2005 Dec;51(6):727-33. doi: 10.1262/jrd.17038. Epub 2005 Sep 22. J Reprod Dev. 2005. PMID: 16177544 Free article.

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