Abstract：
:T-2 toxin and its metabolite HT-2 toxin are one of the most toxic mycotoxins of type A-trichothecenes, which are produced mainly by Fusarium species. Therefore, study of Fusarium toxins T-2 toxin and HT-2 toxin is an essential issue because they could also play role in failures of reproductive functions as well as endocrine system of domestic animals. Assessment of the effect of A-trichothecene mycotoxin HT-2 toxin alone or combined with insulin-like growth factor (IGF-I), leptin and ghrelin on estradiol secretion by rabbit ovarian fragments in vitro was done. Rabbit ovarian fragments were incubated without (control group) or with HT-2 toxin, or its combinations with IGF-I, leptin and ghrelin at various concentrations for 24 h. Secretion of 17beta-estradiol was determined by ELISA. Firstly, HT-2 toxin at the doses 10 and 100 ng.ml(-1), but not at 1 ng.ml(-1) decreased 17beta-estradiol secretion by ovarian fragments. Secondly, 17beta-estradiol secretion was not affected by HT-2 toxin exposure combined with growth factor IGF-I, metabolic hormones leptin and ghrelin. In conclusion, HT-2 toxin has potent direct dose-dependent effects on ovarian steroidogenesis in rabbits. These direct effects of HT-2 mycotoxin on ovarian steroidogenesis could impact negatively on the reproductive performance of rabbits.
journal_name
Physiol Resjournal_title
Physiological researchauthors
Kolesarova A,Maruniakova N,Kadasi A,Halenar M,Marak M,Sirotkin AVdoi
10.33549/physiolres.933610subject
Has Abstractpub_date
2017-09-22 00:00:00pages
705-708issue
4eissn
0862-8408issn
1802-9973pii
933610journal_volume
66pub_type
杂志文章abstract：:To compare serum adiponectin changes across the menstrual cycle between normal weight and overweight/obese young women and its correlation with serum estradiol. Young women (n=56) with regular menstrual cycle had been grouped according to their BMI into normal weight group (n=26) and overweight /obese group (n=30). Bl...
journal_title：Physiological research
pub_type： 杂志文章
doi：10.33549/physiolres.934197
更新日期：2019-12-30 00:00:00
abstract：:Gastrointestinal hormones play an important role in the neuroendocrine regulation of food intake and postprandial satiety. Ghrelin is a 28-amino acid orexigenic peptide produced mainly by the stomach that is involved in both the long-term regulation of body weight and the short-term regulation of postprandial satiety....
journal_title：Physiological research
pub_type： 杂志文章,评审
doi：
更新日期：2009-01-01 00:00:00
abstract：:Hepcidin is a key regulator of iron metabolism and a mediator of anemia in inflammation. Recent in vitro studies recognized prohepcidin as a type II acute phase protein regulating via interleukin-6. The aim of the present study was to investigate the time course of plasma prohepcidin after a large cardiac surgery in r...
journal_title：Physiological research
pub_type： 杂志文章
doi：
更新日期：2009-01-01 00:00:00
abstract：:We investigated the effects of telmisartan, the blocker of angiotensin II receptor 1, on the regulation of systolic blood pressure (SBP) and oxidative stress through endothelial nitric oxide (NO) release in spontaneously hypertensive rats (SHRs). SHRs randomly received placebo, oral feeding of telmisartan (5 mg/kg or ...
journal_title：Physiological research
pub_type： 杂志文章
doi：10.33549/physiolres.932433
更新日期：2013-01-01 00:00:00
abstract：:We performed a systematic study to check whether neurons in the area TE (the anterior part of inferotemporal cortex) in rhesus monkey, regarded as the last stage of the ventral visual pathway, could be modulated by auditory stimuli. Two fixating rhesus monkeys were presented with visual, auditory or combined audiovisu...
journal_title：Physiological research
pub_type： 杂志文章
doi：10.33549/physiolres.932172
更新日期：2011-01-01 00:00:00
abstract：:We report that decreased expression of miR-30c in tumor compared to adjacent tissue is sex-dependent in colorectal cancer (CRC) patients. High expression of miR-30c was associated with better survival in the whole cohort. When the cohort was split into male and female subcohorts, decreased miR-30c expression in tumor ...
journal_title：Physiological research
pub_type： 杂志文章
doi：10.33549/physiolres.934598
更新日期：2020-12-31 00:00:00
abstract：:Recent results of the authors have demonstrated that the elevation of extracellular adenosine induced by the combined administration of dipyridamole, a drug inhibiting the cellular uptake of adenosine, and adenosine monophosphate (AMP), a soluble adenosine prodrug, mediates radioprotective effects in mice. Furthermore...
journal_title：Physiological research
pub_type： 杂志文章
doi：
更新日期：1993-01-01 00:00:00
abstract：:Vascular stenosis is often described only by its percentage in both clinical and scientific praxis. Previous studies gave inconclusive results regarding the effect of stenosis eccentricity on its hemodynamic effect. The aim of this experimental study was to investigate and quantify the effect of stenosis severity and ...
journal_title：Physiological research
pub_type： 杂志文章
doi：10.33549/physiolres.932944
更新日期：2016-01-01 00:00:00
abstract：:Growth of the A549 cell line in a perfusion system suitable for use in a magnetic resonance study has been characterized and shown to be stable physiologically and hence appropriate for serial observations. Several methods of monitoring cell growth were compared to assess the behavior of the cells in this system. Comp...
journal_title：Physiological research
pub_type： 杂志文章
doi：
更新日期：2002-01-01 00:00:00
abstract：:Proper renal blood flow (RBF) and glomerular filtration rate (GFR) are critical for maintaining normal blood pressure, kidney function and water and electrolyte homeostasis. The renal microvasculature expresses a multitude of receptors mediating vasodilation and vasoconstriction, which can influence glomerular blood f...
journal_title：Physiological research
pub_type： 杂志文章
doi：10.33549/physiolres.934463
更新日期：2020-07-16 00:00:00
abstract：:We have investigated the effect of a diet containing of 4% oyster fungus (Pleurotus ostreatus) and 0.1% cholesterol on glycaemia and hyperlipoproteinaemia in rats with insulin-dependent diabetes (streptozotocin 45 mg/kg). After two months, the rats with diabetes kept on the oyster fungus diet, had a significantly lowe...
journal_title：Physiological research
pub_type： 杂志文章
doi：
更新日期：1993-01-01 00:00:00
abstract：:We investigated whether polyethylene glycol-coated Fe3O4 nanoparticles (IONs), acute stress and their combination modifies vascular functions, nitric oxide synthase (NOS) activity, mean arterial pressure (MAP) as well as hepcidin and ferritin H gene expressions in Wistar-Kyoto rats. Rats were divided into control, ION...
journal_title：Physiological research
pub_type： 杂志文章
doi：10.33549/physiolres.934567
更新日期：2020-12-22 00:00:00
abstract：:The influence of chronic angiotensin AT1 receptor blockade by specific antibody on the development of genetic hypertension was studied in young spontaneously hypertensive rats (SHR). The immunization of 4-week-old SHR with a small part of the angiotensin AT1 receptor molecule attenuated the development of hypertension...
journal_title：Physiological research
pub_type： 杂志文章
doi：
更新日期：1996-01-01 00:00:00
abstract：:We measured plasma concentrations, adipose tissue and placental mRNA expression of hepatokines fetuin A, fetuin B and fibroblast growth factor 21 (FGF21) in 12 healthy pregnant women (P group), 12 pregnant women with gestational diabetes (GDM) and 10 healthy non-pregnant women (N group) to explore their potential role...
journal_title：Physiological research
pub_type： 杂志文章
doi：10.33549/physiolres.934017
更新日期：2018-11-28 00:00:00
abstract：:Mammalian Meckel´s cartilage is a temporary structure associated with mandible development. Notably, its elimination is not executed by apoptosis, and autophagy was suggested as the major mechanism. Simultaneous reports point to pro-apoptotic caspases as novel participants in autophagic pathways in general. The aim of...
journal_title：Physiological research
pub_type： 杂志文章
doi：10.33549/physiolres.933947
更新日期：2019-03-06 00:00:00
abstract：:We investigated and evaluated post-irradiation survival in cyclooxygenase-2-deficient (COX-2 KO) mice. Thirty-day survival following exposure of COX-2 KO mice to a lethal dose of 8.5 Gy of gamma-rays was observed to be statistically significantly lower in both males and females, as well as when the sexes were merged, ...
journal_title：Physiological research
pub_type： 杂志文章
doi：10.33549/physiolres.933890
更新日期：2018-11-14 00:00:00
abstract：:Aquaporin proteins (AQPs) are a family of channels expressed in numerous mammalian tissues, where they play a fundamental role in regulating water transport across cell membranes. Based on reports that AQPs are present in the reproductive system and participate in reproductive processes, our aim was to investigate the...
journal_title：Physiological research
pub_type： 杂志文章
doi：10.33549/physiolres.933095
更新日期：2016-11-08 00:00:00
abstract：:Osteoporotic fractures are the result of low density and especially inferior bone quality (microarchitecture) caused by both internal (genes, hormones) and external (life style) influences. Bone mechanosensors are extremely important for the overall integrity of the skeleton, because in response to mechanical load the...
journal_title：Physiological research
pub_type： 杂志文章,评审
doi：
更新日期：2008-01-01 00:00:00
abstract：:The aim of this study was to explore changes in plasma vascular endothelial growth factor (VEGF) in aged patients who undergone transcatheter aortic valve implantation or balloon angioplasty for the treatment of aortic stenosis. Plasma VEGF was measured in subjects with diabetes mellitus type 2 (DM) (n=21, age 79.2+/-...
journal_title：Physiological research
pub_type： 杂志文章
doi：10.33549/physiolres.932857
更新日期：2014-01-01 00:00:00
abstract：:A "pulse like" increase of cytoplasmic calcium concentration, which is proportional to ionophore concentration, is induced in red cells by exposure to A23187. Different Ca2+ levels are attained depending on cellular calcium buffering power and/or primary active calcium transport activation. We examined the effect of A...
journal_title：Physiological research
pub_type： 杂志文章
doi：
更新日期：1995-01-01 00:00:00
abstract：:Evaluation of possible interactions with enzymes of drug metabolism is an important part of studies on safety and, in general, on the properties of any drug or biologically active compound. Here, focus is given on interactions of three sesquiterpenes (beta-caryophyllene oxide (CAO), trans-nerolidol (tNER) and farnesol...
journal_title：Physiological research
pub_type： 杂志文章
doi：10.33549/physiolres.934323
更新日期：2019-11-22 00:00:00
abstract：:Epoxyeicosatrienoic acids (EETs) are also known as epoxyeicosanoids that have renal and cardiovascular actions. These renal and cardiovascular actions can be regulated by soluble epoxide hydrolase (sEH) that degrades and inactivates EETs. Extensive animal hypertension studies have determined that vascular, epithelial ...
journal_title：Physiological research
pub_type： 杂志文章,评审
doi：10.33549/physiolres.934291
更新日期：2019-10-25 00:00:00
abstract：:Dihydrotestosterone (DHT) originates via irreversible reduction of testosterone by catalytic activity of 5alpha-reductase enzyme and it is demonstratively the most effective androgen. Androgens influence adipose tissue in men either directly by stimulation of the androgen receptor or indirectly, after aromatization, b...
journal_title：Physiological research
pub_type： 杂志文章,评审
doi：10.33549/physiolres.932080
更新日期：2011-01-01 00:00:00
abstract：:Cisplatin is one of the most potent chemotherapy drugs against cancer, but its major side effect such as nephrotoxicity limits its use. Inhibition of poly(ADP-ribose) polymerase (PARP) protects against various renal diseases via gene transactivation and/or ADP-ribosylation. However, the role of PARP in necrotic cell d...
journal_title：Physiological research
pub_type： 杂志文章
doi：10.33549/physiolres.932948
更新日期：2016-06-20 00:00:00
abstract：:Resveratrol, which is a polyphenol present in red wines and vegetables included in human diets, exerts many biological effects. The aim of the present study was to investigate its effect on some activities of polymorphonuclear leukocytes, particularly the generation of superoxide anion ((O2)(-)) in whole blood, hypoch...
journal_title：Physiological research
pub_type： 杂志文章
doi：
更新日期：2003-01-01 00:00:00
abstract：:It is believed that omentin is secreted by stromal cells of adipose tissue and modulates insulin sensitivity. Data from a few studies have shown lower serum omentin in obese children and higher in anorexia nervosa. However, to date, there is lack of research on serum omentin concentrations in adolescent patients in a ...
journal_title：Physiological research
pub_type： 杂志文章
doi：10.33549/physiolres.932841
更新日期：2015-01-01 00:00:00
abstract：:The circadian rhythms of many behavioral and physiological functions are regulated by the major circadian pacemaker in the suprachiasmatic nucleus. Long-term opiate addiction and drug withdrawal may affect circadian rhythmicity of various hormones or the sleep/activity pattern of many experimental subjects; however, l...
journal_title：Physiological research
pub_type： 杂志文章
doi：10.33549/physiolres.933183
更新日期：2016-07-18 00:00:00
abstract：:The main neuromodulatory methods using neurostimulation principles are described. It concerns peripheral nerve stimulation (PNS), spinal cord stimulation (SCS), deep brain stimulation (DBS), motor cortex stimulation (MSC), and repetitive transcranial magnetic stimulation (rTMS). For each method the history, pathophysi...
journal_title：Physiological research
pub_type： 杂志文章,评审
doi：10.33549/physiolres.932392
更新日期：2012-01-01 00:00:00
abstract：:The expression of aquaporins (AQPs) in the fetal porcine urinary tract and its relation to gestational age has not been established. Tissue samples from the renal pelvis, ureter, bladder and urethra were obtained from porcine fetuses. Samples were examined by RT-PCR (AQPs 1-11), QPCR (AQPs positive on RT-PCR), and imm...
journal_title：Physiological research
pub_type： 杂志文章
doi：10.33549/physiolres.933545
更新日期：2018-05-04 00:00:00
abstract：:The Prague Hereditary Hypercholesterolemic (PHHC) rat is a model of hypercholesterolemia. In previous experiments, it was found to be completely resistant to the development of atherosclerosis. It was assumed that the reverse transport of cholesterol (RCT) might be the reason for this resistance. In this study, RCT wa...
journal_title：Physiological research
pub_type： 杂志文章
doi：10.33549/physiolres.932680
更新日期：2014-01-01 00:00:00
