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GoPubMed Proteins lists recent and important papers and reviews for proteins. Page last changed on 02 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
Statin treatment and new-onset diabetes: a review of proposed mechanisms.
Review
New
Daskalopoulou et al., Montréal, Canada. In Metabolism, Jun 2014
Other possible mechanisms implicated in the effect of statins on new-onset diabetes are: statin interference with intracellular insulin signal transduction pathways via inhibition of necessary phosphorylation events and reduction of small GTPase action; inhibition of adipocyte differentiation leading to decreased peroxisome proliferator activated receptor gamma and CCAAT/enhancer-binding protein which are important pathways for glucose homeostasis; decreased leptin causing inhibition of β-cells proliferation and insulin secretion; and diminished adiponectin levels.
Prevalence and risk factors for hyperinsulinaemia in ponies in Queensland, Australia.
New
McGowan et al., Neston, United Kingdom. In Aust Vet J, Apr 2014
Blood samples were analysed for serum insulin and triglyceride concentrations and plasma adrenocorticotrophic hormone (ACTH) and leptin concentrations following short-term removal from pasture and withholding of supplementary food for at least 12 h.
The effects of light at night on circadian clocks and metabolism.
New
Impact
Nelson et al., Columbus, United States. In Endocr Rev, Apr 2014
Multiple genes involved in nutrient metabolism display rhythmic oscillations, and metabolically related hormones such as glucagon, insulin, ghrelin, leptin, and corticosterone are released in a circadian fashion.
Association between antipsychotic-induced metabolic side-effects and clinical improvement: a review on the Evidence for "metabolic threshold".
Review
New
Venkatasubramanian et al., Bengaluru, India. In Asian J Psychiatr, Apr 2014
Current research proposes the involvement of insulin, leptin and phospholipid pathways in pathogenesis as well as therapeutics of psychosis.
Metabolism of activated T lymphocytes.
Review
New
Wilson et al., Saskatoon, Canada. In Curr Opin Immunol, Apr 2014
Upon activation, T cells express the insulin and leptin receptors on their surface and become sensitive to insulin signaling and nutrient availability and show changes in differentiation.
A comparative study of reproductive and metabolic responses to administration of exogenous melatonin and aldosterone in xeric and mesic spiny mice populations.
New
Haim et al., Haifa, Israel. In Comp Biochem Physiol A Mol Integr Physiol, Apr 2014
In A. cahirinus females, MLT decreased leptin levels, while in A. russatus, a treatment with both hormones increased leptin levels.
Regulation of hepatic energy metabolism and gluconeogenesis by BAD.
New
Impact
Danial et al., Boston, United States. In Cell Metab, Mar 2014
The physiologic relevance of these findings is evident from the ability of a BAD phosphomimic variant to counteract unrestrained gluconeogenesis and improve glycemia in leptin-resistant and high-fat diet models of diabetes and insulin resistance.
Hypothalamic tanycytes are an ERK-gated conduit for leptin into the brain.
New
Impact
Prévot et al., Saint-Pierre-des-Corps, France. In Cell Metab, Mar 2014
Triggering ERK signaling in tanycytes with EGF reestablishes leptin transport, elicits MBH neuron activation and energy expenditure in obese animals, and accelerates the restoration of leptin sensitivity upon the return to a normal-fat diet.
Hypothalamic tanycytes: gatekeepers to metabolic control.
New
Impact
Luquet et al., München, Germany. In Cell Metab, Mar 2014
(2014) now elucidate molecular mechanisms by which a highly specialized hypothalamic glial cell regulates transport of leptin across the blood-brain barrier.
New concepts in white adipose tissue physiology.
New
Lima et al., Limeira, Brazil. In Braz J Med Biol Res, Feb 2014
In addition to leptin, other biologically active substances secreted by AT, generally classified as cytokines, include adiponectin, interleukin-6, tumor necrosis factor-alpha, resistin, vaspin, visfatin, and many others now collectively referred to as adipokines.
Argonaute2 mediates compensatory expansion of the pancreatic β cell.
New
Impact
Poy et al., Berlin, Germany. In Cell Metab, Feb 2014
Moreover, restoration of miR-184 in leptin-deficient ob/ob mice decreased Ago2 and prevented compensatory β cell expansion.
Obesity: Friend or foe for osteoporosis.
Review
New
Mahajan et al., Jammu, India. In J Midlife Health, Jan 2014
Adipocytes secret leptin, adiponectin, adipsin, as well as proinflammatory cytokines, that contributes in pathogenesis of osteoporosis.
Obesity associated hypertension: new insights into mechanism.
Review
New
Kang, Ansan, South Korea. In Electrolyte Blood Press, Dec 2013
Adipose tissue produce and secretes several molecules such as leptin, resistin, adiponectin, and visfatin, as well as cytokines such as TNF-α, IL-6, MCP-1, and IL-1.
Central inflammation and leptin resistance are attenuated by ginsenoside Rb1 treatment in obese mice fed a high-fat diet.
New
Huang et al., Wollongong, Australia. In Plos One, Dec 2013
We tested the hypothesis that the plant terpenoid compound ginsenoside Rb1 (Rb1), known to exert anti-inflammatory effects, would ameliorate obesity, obesity-associated inflammation and glucose intolerance in the high-fat diet-induced obese mouse model.
[New insights into adipose cell biology].
Burcelin, In Bull Acad Natl Med, 2013
We then found that the enteric-vagal nervous system transmits this nutritional information towards the brain stem and hypothalamus, where leptin, neuropeptide Y and GLP-1 relay the enteric signal to control the endocrine pancreas (insulin-glucagon secretion), the liver (glycogen metabolism), the vascular system (vasodilation, arterial flow), and muscle metabolism.
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
Supplier
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.
Supplier
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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