Nina Smolińska

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Leptin, a hormone secreted by adipocytes, plays an important role in the regulation of metabolism and reproduction. The effect of leptin is mediated mainly via the long isoform of the leptin receptor (OB-Rb). Expression of leptin and its receptor has been identified in the central nervous system (hypothalamus, pituitary) and reproductive tract (uterus,(More)
Adiponectin is a hormone secreted primarily by white adipose tissue. Recent studies have shown that adiponectin and its receptors (AdipoR1 and AdipoR2) are expressed in different reproductive tissues, including the ovary and uterus. This newly discovered endocrine system plays an important role in the regulation of reproductive processes. The expression of(More)
Leptin, the product of the OB gene, is a 16-kDa polypeptide of 146 amino acid residues produced mainly by adipocytes that regulates metabolism and reproduction. The actions of leptin are mediated mainly via the long form of the leptin receptor (OB-Rb). The identification of leptin and OB-Rb mRNAs and proteins in human and mouse endometrium, and placental(More)
Leptin is a polypeptide that plays a key role in the regulation of energy homeostasis and is also linked, among others, to mechanisms controlling reproductive processes. Data concerning the involvement of leptin in controlling reproductive functions at the level of hypothalamus and pituitary in the pig are limited. Therefore, in the present study, an(More)
Orexin A and B are hypothalamic peptides involved in the control of food intake, sleep patterns, autonomic and neuroendocrine systems. The biological actions of orexins are mediated via two G-protein coupled receptors, termed orexin receptor 1 (OX1R) and orexin receptor 2 (OX2R). The present study analyzed mRNA and protein expressions of OX1R and OX2R in(More)
Hypothalamic peptides orexin A (OXA) and orexin B (OXB) are derived from the proteolytic cleavage of a common precursor molecule, prepro-orexin (PPO). They act via two orexin receptors (OX1R and OX2R), which belong to the G-protein coupled receptor superfamily. Orexins are implicated in the regulation of arousal states, energy homeostasis and reproductive(More)
Orexins A and B are neuropeptides which are synthesized mainly in the lateral hypothalamus and are associated with a variety of physiological functions such as energy homeostasis, sleep and wakefulness, feeding behavior, as well as the reproductive system. The orexins activate two G-protein-coupled receptors termed orexin receptor 1 (OX1R) and orexin(More)
The presence of orexins and their receptors in gonads indicate that these hormones participate in the control of reproductive functions. The aim of the study was to compare the expression of the prepro-orexin (PPO) gene in porcine endometrium and myometrium and the intensity of OXA- and OXB-immunoreactivity in the following uterine structures: endometrial(More)
Orexin A and B are hypothalamic peptides derived from the prepro-orexin (PPO) precursor. Orexins stimulate food intake and arousal. Those peptides bind and activate two G protein-coupled receptors: orexin receptor 1 (OX1R) and orexin receptor 2 (OX2R). Numerous authors have suggested that orexins play an important role in the regulation of the reproductive(More)
BACKGROUND Adiponectin, protein secreted mainly by white adipose tissue, is an important factor linking the regulation of metabolic homeostasis and reproductive processes. The biological activity of the hormone is mediated via two distinct receptors, termed adiponectin receptor 1(AdipoR1) and adiponectin receptor 2 (AdipoR2). The present study analyzed mRNA(More)