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GoPubMed Proteins lists recent and important papers and reviews for proteins. Page last changed on 31 Oct 2014.

Leptin

leptin
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. [provided by RefSeq, Jul 2008] (from NCBI)
Top mentioned proteins: Insulin, adiponectin, fibrillin-1, AGE, HAD
Papers using leptin antibodies
Leptin is the modulator of HSP60 gene expression in AR42J cells
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Frühbeck Gema et al., In Mediators of Inflammation, 2005
... The control and pair-fed groups received vehicle (PBS), while leptin-treated mice were intraperitoneally administered with leptin (Bachem, Bubendorf, Switzerland) twice daily ...
A role for iNOS in fasting hyperglycemia and impaired insulin signaling in the liver of obese diabetic mice.
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Calbet Jose A. L., In PLoS ONE, 2004
... were placed under caloric restriction (2 g standard chow diet/day) and were daily injected with recombinant leptin (2 g/kg body weight) (Bachem, Bubendorf, Switzerland) in order ...
Oxidative stress-related parameters in the liver of non-alcoholic fatty liver disease patients
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Acharya Subrat K. et al., In The Indian Journal of Medical Research, 2003
... : Commercial ELISA assays kits were used to measure serum level of TNFα, IL-1, IL-6, leptin (Cayman Chemical Company, Michigan, USA, ...
PPARγ insufficiency enhances osteogenesis through osteoblast formation from bone marrow progenitors
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Ballock R. Tracy et al., In PPAR Research, 2003
... Tri-iodothyronine (T3, Sigma), leptin (Sigma), and ciglitazone (BioMol, Plymouth Meeting, PA) were ...
Dissecting autocrine effects on pulsatile release of gonadotropin-releasing hormone in cultured rat hypothalamic tissue
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Shin Choong Ho et al., In Korean Journal of Pediatrics, 2003
... Recombinant mouse leptin (>98% pure) was purchased from Biodesign International, Meridian Life Science, ...
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Papers on leptin
Multi-generational impact of maternal overnutrition/obesity in the sheep on the neonatal leptin surge in granddaughters.
New
Ford et al., Laramie, United States. In Int J Obes (lond), 30 Nov 2014
Further, newborn lambs born to OB vs. control-fed (CON, 100% of NRC) ewes exhibited greater adiposity, increased blood cortisol, insulin and glucose and the elimination of the postnatal leptin spike seen in lambs born to CON ewes.
The maternal environment programmes postnatal weight gain and glucose tolerance of male offspring but placental and fetal growth are determined by fetal genotype in the Leprdb/+ model of gestational diabetes.
New
Westwood et al., Manchester, United Kingdom. In Endocrinology, 29 Nov 2014
UNLABELLED: Mice heterozygous for a signalling-deficient leptin receptor (Leprdb/+(db/+)) are widely used as a model of gestational diabetes that results in poor fetal outcomes.
Protein Deficiency and Intestinal Nematode Infection in Pregnant Mice Differentially Impact Fetal Growth through Specific Stress Hormones, Growth Factors, and Cytokines.
New
Koski et al., Canada. In J Nutr, 29 Nov 2014
Fetal mass was positively associated with f-leptin (R(2) = 0.71, P = 0.0001) and negatively with fetal cytokines [tumor necrosis factor-α: R(2) = 0.62, P = 0.001; interleukin-4 (IL-4): R(2) = 0.63, P = 0.0004].
Counterregulation of insulin by leptin as key component of autonomic regulation of body weight.
Review
New
Borer, Ann Arbor, United States. In World J Diabetes, 15 Nov 2014
These drive the nonhomeostatic feeding and locomotor motivated behaviors in interaction with circulating ghrelin and lateral hypothalamic neurons signaling through melanin concentrating hormone and orexin-hypocretin peptides; (4) counterregulation of insulin by leptin of both gastric and adipose tissue origin through: potentiation by leptin of cholecystokinin-mediated satiation, inhibition of insulin secretion, suppression of insulin lipogenesis by leptin lipolysis, and modulation of peripheral tissue and brain sensitivity to insulin action.
Interleukin-22 alleviates metabolic disorders and restores mucosal immunity in diabetes.
New
Impact
Ouyang et al., San Francisco, United States. In Nature, 09 Nov 2014
Strikingly, administration of exogenous IL-22 in genetically obese leptin-receptor-deficient (db/db) mice and mice fed with high-fat diet reverses many of the metabolic symptoms, including hyperglycaemia and insulin resistance.
A Missing Link in Body Weight Homeostasis: The Catabolic Signal of the Overfed State.
Review
New
Impact
Ferrante et al., New York City, United States. In Cell Metab, 07 Nov 2014
With the identification of leptin nearly two decades ago, the central circuit that defends against reductions in body fat was revealed.
The thermogenic effect of leptin is dependent on a distinct population of prolactin-releasing Peptide neurons in the dorsomedial hypothalamus.
New
Impact
Luckman et al., Ann Arbor, United States. In Cell Metab, 07 Nov 2014
Leptin is a critical regulator of metabolism, which acts on brain receptors (Lepr) to reduce energy intake and increase energy expenditure.
Structure, production and signaling of leptin.
Review
New
Morrison et al., Baton Rouge, United States. In Metabolism, 28 Oct 2014
From the first discovery of the leptin deficient obese mouse (ob/ob), to the cloning of leptin (ob aka lep) and leptin receptor (db aka lepr) genes, much has been learned about leptin and its action in the central nervous system.
Cell-nonautonomous control of the UPR: mastering energy homeostasis.
New
Impact
Hetz et al., Santiago, Chile. In Cell Metab, 02 Oct 2014
Endoplasmic reticulum (ER) stress and activation of the unfolded protein response (UPR) in hypothalamic neurons are common features of obesity, resulting in leptin and insulin resistance.
Xbp1s in Pomc neurons connects ER stress with energy balance and glucose homeostasis.
New
Impact
Elmquist et al., Dallas, United States. In Cell Metab, 02 Oct 2014
The molecular mechanisms underlying neuronal leptin and insulin resistance in obesity and diabetes remain unclear.
Leptin signaling.
Review
New
Ahima et al., Seoul, South Korea. In F1000prime Rep, Dec 2013
Leptin is secreted by adipose tissue and regulates energy homeostasis, glucose and lipid metabolism, immune function, and other systems.
Adipose tissue and adipokines: the association with and application of adipokines in obesity.
Review
New
Joseph et al., Chester, United Kingdom. In Scientifica (cairo), Dec 2013
Through the identification of leptin, our perceived understanding of adipose tissue was changed instantaneously.
New pharmacological perspectives for the leptin receptor in the treatment of obesity.
Review
New
Dam et al., Paris, France. In Front Endocrinol (lausanne), Dec 2013
However, treating obese people with exogenous leptin was unsuccessful in most cases since most of them present already high circulating leptin levels to which they do not respond anymore defining the so-called state of "leptin resistance."
Effects of a High-Fat Diet on Spontaneous Metastasis of Lewis Lung Carcinoma in Plasminogen Activator Inhibitor-1 Deficient and Wild-Type Mice.
New
DeMars et al., Grand Forks, United States. In Plos One, Dec 2013
Mice deficient in PAI-1 showed significantly greater plasma concentrations of monocyte chemotactic protein-1, tumor necrosis factor-α, leptin, vascular endothelial growth factor, tissue inhibitor of metalloproteinase-1 and insulin compared to wild-type mice, indicating a compensatory overproduction of inflammatory cytokines, angiogenic factors and insulin in the absence of PAI-1.
Leptin deficiency is involved in the cognitive impairment of streptozocin-induced diabetic rats undergoing cardiopulmonary bypass.
New
Hua et al., Changzhou, China. In Int J Clin Exp Med, Dec 2013
Several lines of evidence have demonstrated that leptin is probably involved in the cognitive impairment which induced by a single injection of streptozocin (STZ).
Food intake reductions and increases in energetic responses by hindbrain leptin and melanotan II are enhanced in mice with POMC-specific PTP1B deficiency.
GeneRIF
Bence et al., Philadelphia, United States. In Am J Physiol Endocrinol Metab, 2012
Data suggest that leptin and PTP1B (protein tyrosine phosphatase 1B) are important components in energy balance regulation by pro-opiomelanocortin neurons in hindbrain. PTP1B knockout mice are hypersensitive to administration of leptin to hindbrain.
Alveolar macrophages from overweight/obese subjects with asthma demonstrate a proinflammatory phenotype.
GeneRIF
Kraft et al., Durham, United States. In Am J Respir Crit Care Med, 2012
Leptin levels were increased in overweight/obese subjects and were significantly higher in overweight/obese subjects with asthma. Alveolar macrophages from overweight/obese subjects with asthma are uniquely sensitive to leptin.
[Association between leptin gene promoter methylation and type 2 diabetes mellitus].
GeneRIF
Li et al., Wuhan, China. In Zhonghua Yi Xue Yi Chuan Xue Za Zhi, 2012
The methylation rates of leptin gene in IGR and T2DM groups were 43.6 % and 31.5 %, respectively, which were significantly lower than that of healthy subjects (59.2%; Chi-square=22.499 and 5.109, respectively, P<0.05).
Relationship between leptin G2548A and leptin receptor Q223R gene polymorphisms and obesity and metabolic syndrome risk in Tunisian volunteers.
GeneRIF
Bouslama et al., Sousse, Tunisia. In Genet Test Mol Biomarkers, 2012
LEP G2548A and LEPR Q223R polymorphisms and haplotype combination were associated with MetS and obesity risk in Tunisian volunteers.
Leptin affects insulin action in astrocytes and impairs insulin-mediated physical activity.
GeneRIF
Hennige et al., Tübingen, Germany. In Cell Physiol Biochem, 2011
a crosstalk of leptin and insulin in the brain which leads to a decline in locomotor activity
More papers using leptin antibodies
Divergent effects of soy protein diet on the expression of adipocytokines
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Naito Michitaka et al., In Journal of Clinical Biochemistry and Nutrition, 2002
An insulin kit was purchased from Sibayagi (Gunma, Japan), a leptin kit was purchased from Biovendor Laboratory Medicine (Brno, Czech ...
Analysis of relative gene expression data using real-time quantitative PCR and the 2(-Delta Delta C(T)) Method
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Ghribi Othman et al., In Molecular Neurodegeneration, 2000
... Leptin, Aβ42, and rapamycin were purchased from Sigma Aldrich (St ...
Cerebrospinal cytokine levels in patients with acute depression
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Dąbrowski Piotr et al., In Mediators of Inflammation, 1998
... Leptin was measured using a commercially available highly sensitive ELISA kits (BioVendor Laboratory Medicine Inc., Czech ...
Expression of cell adhesion molecules in murine placentas and a placental cell line.
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Bobé Pierre, In PLoS ONE, 1998
... Plasma leptin levels were measured by ELISA (Cayman Chemical Company, Ann Arbor, ...
The glucose oxidase-DAB-nickel method in peroxidase histochemistry of the nervous system.
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Calbet Jose A. L., In PLoS ONE, 1987
... The control and pair-fed groups received vehicle (PBS), while leptin-treated groups were intraperitoneally administered with leptin (Bachem, Bubendorf, Switzerland) twice a day ...
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