Search Results - "Kolena, J"

Self-sustained oscillations of temperature and conversion in a packed bed microreactor during 2-methylpropene (isobutene) hydrogenation by Stavarek, P., Vajglova, Z., Kristal, J., Jiricny, V., Kolena, J.

“…•A kinetic study of 2-methylpropene hydrogenation was examined in a flow microreactor.•Dimensionless criteria analysis has shown the presence of heat and mass…”
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The behavior of pilot trickle-bed reactor under periodic operation by Tukač, V., Šimíčková, M., Chyba, V., Lederer, J., Kolena, J., Hanika, J., Jiřičný, V., Staněk, V., Stavárek, P.

“…Hydrogenation of olefins presented in pyrolysis gasoline to prevent gum-formation and catalyst deactivation in subsequent processes is usually adopted in…”
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Effect of intraovarian factors on porcine follicular cells: cumulus expansion, granulosa and cumulus cell progesterone production by Ježová, M, Scsuková, S, Nagyová, E, Vranová, J, Procházka, R, Kolena, J

“…The role of granulosa cell conditioned media (CM) containing luteinization stimulator (LS), and the role of EGF in the cumulus expansion of oocyte–cumulus…”
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Effect of phospholipase C induced hydrolysis of phospholipids on membrane-bound and water-soluble LH/hCG receptors in porcine corpora lutea by Kolena, J

“…The role of phospholipids in the function of LH/hCG receptors was studied in two receptor preparations: the membrane fraction of porcine corpora lutea (CL) and…”
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Inhibitory effect of cadmium and tobacco alkaloids on expansion of porcine oocyte-cumulus complexes by Mlynarcíková, A, Scsuková, S, Vrsanská, S, Nagyová, E, Ficková, M, Kolena, J

“…Studies aimed at the influence of smoking on reproductive functions have found out fertility disorders in smokers occurring at any stage of reproductive…”
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Thermal destabilization of ovarian LH/hCG receptors by negatively charged lipids by Kolena, J, Scsuková, S, Jezová, M

“…The stabilizing effect of BSA on the rat ovarian LH/hCG receptor was analyzed by thermal perturbation technique. Thermal destabilization of the receptor with…”
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Gossypol inhibits follicle-stimulating hormone- and epidermal growth factor-stimulated expansion of oocyte-cumulus complexes from porcine preovulatory follicles by Kolena, J, Vrsanská, S, Nagyová, E, Jezová, M

“…The role of gossypol in the cumulus expansion of oocyte-cumulus complexes (OCC) isolated from large antral porcine follicles was investigated. Marked…”
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Luteinization factor-stimulated steroidogenesis in porcine granulosa cells by Jezová, M, Vrsanská, S, Kolena, J

“…Luteinization stimulator (LS), an intrafollicular compound of preovulatory (5-8 mm) follicles, increased both the basal and gonadotropins-stimulated production…”
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Inhibitory effect of gossypol on basal and luteinization factor-stimulated progesterone synthesis in porcine granulosa cells by Vranová, J, Jezová, M, Scsuková, S, Kolena, J

“…Gossypol, a polyphenolic aldehyde, inhibits steroidogenesis and the reproductive system in both sexes. The present study was undertaken to investigate whether…”
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Cooperation between LH-RH and LH in the direct action on the ovary: LH-RH stimulation of LH/hCG receptors, basal and LH-induced cAMP and cGMP release by porcine granulosa cells in vitro by Sirotkin, A V, Nitray, J, Kolena, J, Bulla, J

“…LH-RH effects on LH/hCG receptors content, on basal and LH-stimulated cAMP and cGMP release by cultured porcine granulosa cells, were investigated by…”
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Effect of neutral lipids on fluidity of corpora lutea plasma membranes and the accessibility of LH/hCG receptor by Scsuková, S, Kolena, J

“…Porcine corpora lutea plasma membranes were treated with neutral lipids from hen egg yolk and a special mixture consisting of 70% neutral lipids, 20%…”
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Hormonal modulation of structural alteration of rat ovarian luteinizing/human chorionic gonadotropin receptors by Kolena, J, Jezová, M, Vranová, J, Scsuková, S

“…The structure-stabilizing effect of homologous and heterogeneous desensitization and albumin on rat ovarian LH/hCG receptors was analyzed by thermal…”
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Endocrine responses to space flights by Macho, L, Kvetnansky, R, Fickova, M, Kolena, J, Knopp, J, Tigranian, R A, Popova, I A, Grogoriev, A I

“…Simultaneously with human space flights several series of observations were performed by using experimental animals--mainly rats--exposed to space flights on…”
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Alterations in steroid hormone production by porcine ovarian granulosa cells caused by bisphenol A and bisphenol A dimethacrylate by Mlynarčíková, Alžbeta, Kolena, Jaroslav, Ficková, Mária, Scsuková, Soňa

“…We have investigated the effects of bisphenol A (BPA) and BPA-dimethacrylate (BPA-DMA), endocrine disruptors used as plasticizers, on steroid hormone…”
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Osmolytes improve the reconstitution of luteinizing hormone/human chorionic gonadotropin receptors into proteoliposomes by Kolena, J, Matejcíková, K, Srenkelová, G

“…Rat ovarian membrane luteinizing hormone/human chorionic gonadotropin (LH/hCG) receptor was reconstituted into proteoliposomes. The ability of sodium cholate…”
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Modulation of LH/hCG receptors and physical state of ovarian membranes in rat pseudopregnancy by Jezová, M, Scsuková, S, Vranová, J, Kolena, J

“…Previous investigations have demonstrated that increased ovarian function during pseudopregnancy in the rat may be associated with alterations of the physical…”
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Effect of phospholipids on the reconstitution and thermal stability of delipidated rat ovarian luteinizing hormone/human chorionic gonadotropin receptors in proteoliposomes by Kolena, J., Scsuková, S., Jezová, M., Furdová, J., Tatara, M., Jasem, P.

“…The role of lipids and a possible structure-functional alteration of delipidated LH/hCG receptor reconstituted into proteoliposomes was analyzed by thermal…”
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Ontogenic development of the responsiveness in cAMP synthesis to LH and PGE1 and gonadotropin receptors in the rat ovary by Kolena, J

“…Incubation of ovaries derived from rats aged 9, 13, 16, and 20 days with LH resulted in a significant rise in cAMP synthesis. The ovaries from 2- and 5-day-old…”
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Involvement of tryptophan in the structural alterations of the rat ovarian LH/hCG receptor by Kolena, J, Scsuková, S, Tatara, M, Vranová, J, Jezová, M

“…Treatment of the rat ovarian membrane-bound and Triton X-100 solubilized LH/hCG receptor with the tryptophan-specific reagents N-bromosuccinimide (NBS) and…”
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Effect of local anesthetics on accessibility and thermal stability of the rat ovarian LH/hCG receptor by Scsuková, S, Jezová, M, Vranová, J, Tatara, M, Kolena, J

“…Perturbation of rat ovarian membranes induced by local anesthetics altered the accessibility and thermal stability of the LH/hCG receptor. Incubation of…”
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