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Omentin-1 (Intelectin-1, ITLN-1, Intestinal lactoferrin receptor, Galactofuranose-binding lectin, Endothelial lectin HL-1, Omentin, INTL, ITLN, LFR, UNQ640/PRO1270)

Omentin (intelectin-1, intestinal lactoferin receptor, endothelian lectin HL-1, galactofurano­sebinding lectin) is newly identified secretory protein that is highly and selectively expressed in visceral adipose tissue relative to subcutaneous adipose tissue (adipokine). The mature omentin is secretory glycoprotein consisting of 295 amino acids and 1-linked oligosacharides, and its basic structural unit is a 120-kDa homotrimer in which 40-kDa polipeptides are bridged by disulfide bonds. Omentin has been identified in other tissue at lower expression levels such are Paneth cells, endothelial cells, and visceral adipose stromal-vascular cells. A homolog of omentin has been identified that shares 83% amino acid identity with omentin and was referred to as omentin 2. The two omentin genes, omentin 1 and omentin 2, are localized adjacent to each other in chromosomal region, which has been previously linked to type 2 diabetes in several populations. To determine the impact of obesity-dependent insulin resistance on the regulation of two omentin isoforms, gene expression and plasma levels were measured in lean, overweight, and obese subjects. Omentin-1 was shown to be the major circulating isoform in human plasma. Lean subjects had significantly higher omentin-1 plasma levels than obese and overweight subjects. In addition, higher plasma omentin-1 levels were detected in women compared with men. Plasma omentin-1 levels were inversely correlated with BMI, waist circumference, leptin levels, and insulin resistance as measured by homeostasis model assessment and positively correlated with adiponectin and HDL levels. In summary, decreased omentin-1 levels are associated with increasing obesity and insulin resistance. An independent experiment reported that the addition of recombinant omentin-1 in vitro did not affect basal glucose uptake but did enhance insulin-stimulated glucose uptake in both subcutaneous and omental human adipocytes. Omentin-1 increased Akt phosphorylation in the absence and presence of insulin and may regulate insulin action. A recent study of women with the polycystic ovary syndrome (PCOS) found significantly reduced omentin-1 mRNA expression and protein levels in adipose tissue in overweight PCOS women. In addition, significantly lower plasma omentin-1 levels were detected in these women.

1 result found in Immunoassays
2 results found in Proteins
2 results found in Antibodies

Immunoassays
Product Size Price
Omentin-1 Human ELISA

Type: Sandwich ELISA, Biotin-labelled antibody

RD191100200R 96 wells (1 kit)
 
Proteins
Product Size Price
Omentin Human E. coli

Type: Recombinant protein

RD172100025 0.025 mg
RD172100100 0.1 mg
 
Antibodies
Product Size Price
Omentin-1 Human, Rabbit Polyclonal Antibody

Type: Polyclonal Antibody

RD181100100 0.1 mg
 
Omentin-1 Human, Sheep Polyclonal Antibody

Type: Polyclonal Antibody

RD184100100 0.1 mg