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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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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
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
Thus, Mc4r (show MC4R Proteins) in the PVH appears to be required for early-life programming of hypertension arising from either maternal obesity or neonatal hyperleptinemia. Early-life exposure of the PVH to maternal obesity through postnatal elevation of leptin may have long-term consequences for cardiovascular health.
t the cellular level, leptin promoted effector T-cell responses and facilitated the presentation of self-antigens to T cells, whereas it inhibited the activity of regulatory CD4 (show CD4 Proteins) T cells. The understanding of the role of leptin in modulating autoimmune responses in SLE can open possibilities of leptin-targeted therapeutic intervention in the disease.
plasma adiponectin and leptin were also decreased in IL 10tm.These findings suggest that frailty observed in this mouse model of chronic inflammation may in part be driven by alterations in fat mass, hormone secretion and energy metabolism
in congenitally leptin deficient animals, leptin is not required for compensatory reduction in energy expenditure accompanying weight loss, but suggest that the hyperphagia of the weight-reduced state is leptin-dependent.
Our data provide evidence that the interplay of these two hormones could help improve the understanding of the pathogenesis of atherosclerosis and NAFLD.
Data suggest that Htr2c (show HTR2C Proteins) and leptin in hypothalamic nuclei may be involved in the effects of corticosterone on food intake/appetite regulation. (Htr2c (show HTR2C Proteins) = 5-hydroxytryptamine type 2C receptor)
Further experiments indicated that miR (show MLXIP Proteins)-122 inhibited leptin-induced liver fibrosis in leptin-deficient mouse model.
Endoplasmic reticulum stress-induced CHOP (show DDIT3 Proteins) activation in the brain is a mechanistic link in the palmitate-induced negative regulation of leptin and IGF1 (show IGF1 Proteins).
neuronal Rap1 (show TERF2IP Proteins) critically regulates leptin sensitivity
Upregulation of leptin levels in both the vessel wall and the circulation after vessel injury promoted the migration of Sca-1(+) progenitor cells via leptin receptor (show LEPR Proteins)-dependent signal transducer and activator of transcription 3 (show STAT3 Proteins)- Rac1/Cdc42 (show CDC42 Proteins)-ERK (show EPHB2 Proteins) (extracellular signal-regulated kinase)-FAK (show PTK2 Proteins) pathways, which enhanced neointimal formation.
These findings are consistent with higher levels of serum leptin being associated with asthma regardless of age, and low adiponectin levels being associated with asthma in adults only.
These findings suggest that specific MFN2 (show MFN2 Proteins) mutations cause tissue-selective mitochondrial dysfunction with increased adipocyte proliferation and survival and confirm a novel form of excess adiposity with paradoxical suppression of leptin expression.
The G-allele of leptin gene polymorphism (G2548A) was associated with increased BP levels during pregnancy and the postpartum.
Study demonstrates that fasting induces changes in DNA methylation. This was shown in LEP and ADIPOQ promoters in subcutaneous adipose tissue among normal birth weight (NBW) but not low birth weight (LBW) subjects. The altered epigenetic flexibility in LBW subjects might contribute to their differential response to fasting, adipokine levels, and increased risk of metabolic disease.
We conclude that elevated plasma leptin levels are associated with impaired left ventricular diastolic function in patients with coronary artery disease independently of obesity and other confounding variables.
The results of our study suggest an association between adiponectin gene rs266729 as well as leptin gene rs2167270 polymorphisms and Gestational diabetes mellitus
This study shows that leptin is measurable in exhaled breath condensate (EBC) in children and that exhaled breath condensate-leptin levels are significantly higher in the obese subjects and in asthmatic ones compared with healthy subjects.
Leptin is the most important adipokine in anorexia nervosa (AN). Leptin and free leptin index are the only factors that are influenced not only by the fat content.
Women spent almost 60% of their time sitting throughout pregnancy. In cross-sectional analyses, an association of sedentary time at 24weeks was found with increased total cholesterol and HDL (show HSD11B1 Proteins). More sedentary time was associated with lower IL-6 (show IL6 Proteins) at 24weeks and with higher IL-10 (show IL10 Proteins), TNF-alpha (show TNF Proteins) and leptin levels at 32weeks of pregnancy.
When stratified by menopausal status free leptin index and soluble leptin receptor remained as risk factors irrespective of menopausal status while LEPR gene K109R A/G polymorphism remained as a risk factor only in the postmenopausal group.
study has allowed a transcriptional characterization of LEP and LEPR isoforms on a range of tissues. Their expression patterns seem to indicate that both molecules develop peripheral roles apart from their known hypothalamic signal transduction function
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.
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, 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