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Human Leptin Protein expressed in Escherichia coli (E. coli) - ABIN803917
Moon, Chamberland, Diakopoulos, Fiorenza, Ziemke, Schneider, Mantzoros: Leptin and amylin act in an additive manner to activate overlapping signaling pathways in peripheral tissues: in vitro and ex vivo studies in humans. in Diabetes Care 2011
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Rat (Rattus) Leptin Protein expressed in Escherichia coli (E. coli) - ABIN803914
Castellano, Navarro, Fernández-Fernández, Roa, Vigo, Pineda, Dieguez, Aguilar, Pinilla, Tena-Sempere: Expression of hypothalamic KiSS-1 system and rescue of defective gonadotropic responses by kisspeptin in streptozotocin-induced diabetic male rats. in Diabetes 2006
Sheep (Ovine) Leptin Protein expressed in - ABIN623942
Szczesna, Zieba, Klocek-Gorka, Misztal, Stepien: Seasonal effects of central leptin infusion and prolactin treatment on pituitary SOCS-3 gene expression in ewes. in The Journal of endocrinology 2010
These results confirm and extend the previous evidence that LEP has a general and important role in the response of mammalian cells to irradiation.
leptin is involved in the proliferation and activation of microglia, which in turn enhances the development of neuropathic pain after avulsion of the cervical roots.
Suggest that intact endothelial leptin signaling limits neointima formation and that obesity represents a state of endothelial leptin resistance.
these studies demonstrate marked differences in the acute insulin (show INS Proteins)-independent effects by which leptin reverses fasting hyperglycemia and ketoacidosis in a rodent model of DKA versus the chronic pleotropic effects by which leptin reverses hyperglycemia in a non-DKA rodent model of T1D.
High fat diet attenuates leptin signaling throughout the brain, but some brain regions maintain their ability to sense leptin. Weight loss restores leptin sensing to some degree in most (but not all) brain regions, while other brain regions display hypersensitivity to leptin following weight loss
CNS-specific Tak1 (show NR2C2 Proteins) deletion prevented ER-stress-induced hypothalamic leptin resistance and hyperphagic obesity under a high-fat diet (HFD). Thus, TAK1 (show NR2C2 Proteins) is a crucial regulator of ER stress in vivo, which could be a target for alleviation of ER stress and its associated disease conditions.
These data further implicate IL-6 (show IL6 Proteins) in fatty liver disease modulation in the context of DIO, and indicate that continuous stimulation with IL-6 (show IL6 Proteins) attenuates the IL-6 (show IL6 Proteins)-receptor response, which is associated with high serum levels of leptin.
these data unmasked a role for mitochondrial fission in leptin sensitivity and glucose sensing of POMC (show POMC Proteins) neurons.
Obesity and leptin deficiency substantially decreased morphine metabolism and clearance.
These findings suggest that by impairing the testicular LEP-JAK (show JAK3 Proteins)-STAT (show STAT1 Proteins) pathway, early-stage obesity inhibits the biosynthesis of testosterone and sexual development and reduces male reproductive potential. Long-term moderate and high-volume exercise can effectively reduce body fat and improve obesity-induced abnormalities in testicular leptin signal transduction, whereas only moderate-volume exercise can reverse the negativ
High leptin/adiponectin (show ADIPOQ Proteins) ratio in pregnancy, particularly in those with gestational diabetes, is associated with an unfavorable CVD risk profile during follow-up.
leptin-adiponectin (show ADIPOQ Proteins) imbalance, as reflected by an increase in leptin/adiponectin (show ADIPOQ Proteins) ratio, was found to be a better diagnostic biomarker for MS than leptin or adiponectin (show ADIPOQ Proteins) alone.
Leptin knockdown suppressed MUC5AC production and secretion induced by IL-13 (show IL13 Proteins) in human bronchial epithelial cells.
Leptin levels increase significantly within 3 months of fetal pancreatic stem cell transplant in patients with type 1 diabetes mellitus.
High leptin expression is associated with lymph node metastasis in breast cancer.
High leptin serum level is associated with lung cancer.
IL-23 (show IL23A Proteins) R (rs7517847) and LEP (rs7799039) polymorphisms were associated with an increased risk but not affecting the clinical presentation of HCC (show FAM126A Proteins) among Egyptian patients
the modulation of LEP and IGF-1 serum levels by LEP gene polymorphism at rs7799039 loci; evidence for Growth hormone deficiency pathogenesis
Leptin in autoimmune diseases has gradually become clear. It has been shown that leptin acts as an exacerbating factor in many autoimmune diseases and it is suggested that inhibition of leptin signal may be a novel therapeutic method for autoimmune diseases.
Leptin also significantly increased cAMP levels, cAMP response element (CRE) activation, and CREB (show CREB1 Proteins) phosphorylation.
The lack of effect of heat stress on the expression of leptin suggests that this peptide may not be involved in the reduction of feed intake of HS acclimated pigs.
A high variability of the LEP was detected in the different analysed populations providing new data for the existence of two domestication centres in Asia.
The presence of leptin and ObR-b varies across parities and is more intense in the uterus, ovaries and hypothalamus of females that were cycling before culling than in those having cystic ovaries.
Studied 3'UTR leptin polymorphism regulatory sequences' affect on gene expression and their association with production traits.
These results suggest that LEPR, MC4R, PIK3C3 and VRTN are useful markers for accurately predicting breeding values in Duroc pigs.
Data showing changes in expression patterns of LEP/LEPR in endometrium/chorioallantoic membrane during placentation/fetal development suggest role for LEP/LEPR complex at early stages of pregnancy, possibly affecting the attachment process.
Another funning discovery is ob-Rb (show LEPR Proteins) mRNA in porcine endometrium was mainly negative-regulated by leptin
Characterization of a distinctive pattern of periovulatory leptin secretion and its relationship with ovulation rate and luteal function in swine with obesity/leptin resistance
Leptin and leptin receptor (show LEPR Proteins) are expressed in porcine luteal cells, and there is a modulatory effect of LH, estradiol (E) and progesterone (P) on leptin mRNA expression as well as E and P on leptin secretion by those cells obtained in early pregnancy.
The present study aimed to determine the effects of breed and sex on growth patterns and metabolic features of advanced-pregnancy foetuses from lean and obese/leptin resistant swine.
Consistent with this, leptin enhanced GnRH (show GNRH1 Proteins)-induced secretion of LH measured by ELISA. We suggest that leptin enhances membrane expression of voltage-gated Na(+) and Ca(2 (show CA2 Proteins)+) channels, which results in a modulation of the action potential properties and an increase in hormone release from gonadotropes.
The effects of a single nucleotide polymorphism of leptin on weight gain and body composition are reported.
A leptin SNP (LEPg.978) was significantly associated with a weight at one year.
The results of this study suggest that leptin physiology could be a candidate for mechanisms that contribute to feed intake and feed efficiency variation in beef cattle.
Leptin concentrations could be a useful physiological marker for growth and feed efficiency of finishing beef cattle.
Hormonal gene expression involved in residual feed intake in dairy cows may be related to the molecular regulation of the leptin-NPY (show NPY Proteins) and insulin (show INS Proteins) signaling pathways.
Leptin R25C genotype impacted most traits associated with fatness.
The absence of A80V polymorphism (C --> T at position 95691973 bp of leptin gene) has been established in the genotypes of Ayrshire cattle as compared to Holstein cattle.
Data indicate that increased body weight gain during juvenile development accelerates sexual maturation in heifers, coincident with reciprocal changes in circulating concentrations of leptin and hypothalamic neuropeptide Y (NPY (show NPY Proteins)) release.
SNP LEP significantly affected milk, protein and fat yield (P<0.05), and age at first calving (P<0.01) in analyzed population of cows. SNP LEPR/T945M affected significantly calving interval (P<0.01) only
polymorphisms of the LEP gene might be important genetic factors influencing growth traits, and these genetic markers may be useful for future marker-assisted selection programs in goat breeding and production
study suggests that increased CSF (show CSF2 Proteins) leptin, likely from blood-brain barrier breakdown, combined with elevated serum GH and IGF-1 (show IGF1 Proteins) after traumatic brain injury, leads to accelerated fracture healing
We conclude that offspring from mothers consuming a high fat diet exhibit an adverse cardiovascular profile in adulthood because of altered central hypothalamic sensitivity to leptin and ghrelin (show GHRL Proteins).
Niacin Reduces serum level and adipose mRNA expression of leptin and up-regulates PPARgamma (show PPARG Proteins) and CD36 (show CD36 Proteins) mRNA expression in hypercholesterolemic rabbits.
Positive correlations were found between leptin and total lipids, triglycerides, VLDLs, Total-Chol, and LDLs.
Leptin metabolism in obese ponies following a return to free feeding after a period of food deprivation is reported.
Plasma levels of leptin (as well as glucose, insulin, and growth hormone) are highly correlated with the duration of winter anovulatory phase.
GHRL (show GHRL Proteins), LEP, ADIP (show SSX2IP Proteins), INS (show INS Proteins) and CORT (show CORT Proteins) concentrations were measured using radioimmunoassay
positive correlation between leptin and estradiol led us to suggest that leptin hormone plays an important role in ovulation of the first postpartum estrus in mares
The effects of exogenous human kisspeptin-10 (KP10) were studied on three important adipokines, namely, adiponectin (show ADIPOQ Proteins), leptin, and resistin (show RETN Proteins) in a set of four chair-restraint habituated intact adult male rhesus monkeys.
results do not support a role for reduced leptin secretion in anovulation induced by dietary restriction
This gene encodes a protein that is secreted by white adipocytes, and which plays a major role in the regulation of body weight. This protein, which acts through the leptin receptor, functions as part of a signaling pathway that can inhibit food intake and/or regulate energy expenditure to maintain constancy of the adipose mass. This protein also has several endocrine functions, and is involved in the regulation of immune and inflammatory responses, hematopoiesis, angiogenesis and wound healing. Mutations in this gene and/or its regulatory regions cause severe obesity, and morbid obesity with hypogonadism. This gene has also been linked to type 2 diabetes mellitus development.
, leptin (murine obesity homolog)
, leptin (obesity homolog, mouse)
, obese protein
, obese, mouse, homolog of