Polymorphism A36G of the tumor necrosis factor receptor 1 gene is associated with PAI-1 levels in obese women

2007 ◽  
Vol 97 (01) ◽  
pp. 62-66 ◽  
Author(s):  
Alenka Mavri ◽  
Delphine Bastelica ◽  
Marjorie Poggi ◽  
Pierre Morange ◽  
Franck Peiretti ◽  
...  

SummaryThe tumor necrosis factor (TNF) pathway may be implicated in etiopathogenesis of PAI-1 overexpression during obesity. The aim of this study was to investigate the influence of polymorphismA36G of the TNF receptor 1 (TNFRSF1A +36A/G) on plasma concentrations of PAI-1 in 163 obese (31 with the metabolic syndrome, MetS) and 150 lean, healthy women. Genotypic and allele frequencies did not significantly differ between obese and lean subjects. TNFRSF1A genotypes were significantly associated with sTNFR1 plasma levels in obese women only (p<0.01); TNFRSF1A +36G/G obese carriers exhibited higher sTNFR1 and PAI-1 levels than A carriers (p<0.01 and p<0.05, respectively). In obese women, the presence of the MetS significantly potentiated the elevation of sTNFR1 and PAI-1 levels observed in the TNFRSF1A+36G/G carriers. Our results suggest that association between TNFRSF1A +36G/G genotype and the MetS renders obese women more prone to activation of the TNF pathway reflected by high circulating sTNFR1 and PAI-1 levels.

2021 ◽  
Vol 6 (1) ◽  
Author(s):  
Manjunath Ramanjaneya ◽  
Jayakumar Jerobin ◽  
Ilham Bettahi ◽  
Kodappully Sivaraman Siveen ◽  
Abdul-Badi Abou-Samra

AbstractObesity and insulin resistance are key elements of the metabolic syndrome, which includes type 2 diabetes (T2D), dyslipidemia, systemic inflammation, hypertension, elevated risk for cardiovascular diseases, non-alcoholic fatty liver disease (NAFLD) and polycystic ovary syndrome (PCOS). C1Q Tumor necrosis factor-related proteins (CTRPs) have recently emerged as important regulators of metabolism as a core component in the interrelationship between insulin resistance, adiposity and inflammation. To date 15 CTRP members have been identified and most of the CTRPs are dysregulated in obesity, T2D, coronary artery disease and NAFLD. Pharmacological intervention and lifestyle modification alter expression of CTRPs in circulation and in metabolically active tissues. CTRPs enhance metabolism mainly through activation of AMPK/AKT dependent pathways and possess insulin sensitizing properties. Thus dysregulated expression of CTRPs in metabolic disorders could contribute to the pathogenesis of the disease. For these reasons CTRPs appear to be promising targets for early detection, prevention and treatment of metabolic disorders. This review article aims at exploring the role of CTRPs in metabolic syndrome.


2009 ◽  
Vol 200 (6) ◽  
pp. 630.e1-630.e8 ◽  
Author(s):  
Baha Sibai ◽  
Roberto Romero ◽  
Mark A. Klebanoff ◽  
Madeline Murguia Rice ◽  
Steve Caritis ◽  
...  

2000 ◽  
Vol 70 (4) ◽  
pp. 1313-1318 ◽  
Author(s):  
Colleen W Marano ◽  
Leah Ann Garulacan ◽  
Kathleen V Laughlin ◽  
Lisa Igidbashian ◽  
Candace Trace ◽  
...  

Metabolism ◽  
2000 ◽  
Vol 49 (8) ◽  
pp. 1021-1024 ◽  
Author(s):  
Shao C. Lee ◽  
Yong Bing Pu ◽  
G.Neil Thomas ◽  
Zoe S.K. Lee ◽  
Brian Tomlinson ◽  
...  

Author(s):  
Marta Mejias Trueba ◽  
Marta Alonso Moreno ◽  
Noemi Garrido Puñal ◽  
Maria Soriano Martinez

Tumor necrosis factor (TNF) receptor-associated periodic syndrome (TRAPS) is a rare hereditary systemic autoinflammatory disease (SAID). Treatment is based on corticosteroids, but often requires the addition of a biologic drug (anti-TNF agent, IL-1 receptor antagonist, etc) to achieve symptom control. The addition of the second drug is not clearly defined and must take into account the characteristics and preferences of the patient. We describe a patient with TRAPS and an allergic reaction to anakinra which was difficult to manage clinically while alternative treatment was being identified.


2008 ◽  
Vol 28 (9) ◽  
pp. 1574-1587 ◽  
Author(s):  
Robert E Iosif ◽  
Henrik Ahlenius ◽  
Christine T Ekdahl ◽  
Vladimer Darsalia ◽  
Pär Thored ◽  
...  

Stroke induced by middle cerebral artery occlusion leads to transiently increased progenitor proliferation in the subventricular zone (SVZ) and long-lasting striatal neurogenesis in adult rodents. Tumor necrosis factor-α (TNF-α) is upregulated in stroke-damaged brain. Whether TNF-α and its receptors influence SVZ progenitor proliferation after stroke is unclear. Here we show that the increased proliferation 1 week after stroke occurred concomitantly with elevated microglia numbers and TNF-α and TNF receptor-1 (TNF-R1) gene expression in the SVZ of wild-type mice. TNF receptor-1 was expressed on sorted SVZ progenitor cells from nestin-green fluorescent protein reporter mice. In animals lacking TNF-R1, stroke-induced SVZ cell proliferation and neuroblast formation were enhanced. In contrast, deletion of TNF-R1 did not alter basal or status epilepticus-stimulated cell proliferation in SVZ. Addition of TNF-α reduced the size and numbers of SVZ neurospheres through a TNF-R1-dependent mechanism without affecting cell survival. Our results provide the first evidence that TNF-R1 is a negative regulator of stroke-induced SVZ progenitor proliferation. Blockade of TNF-R1 signaling might be a novel strategy to promote the proliferative response in SVZ after stroke.


Oncogene ◽  
2009 ◽  
Vol 28 (15) ◽  
pp. 1769-1781 ◽  
Author(s):  
A Wicovsky ◽  
F Henkler ◽  
S Salzmann ◽  
P Scheurich ◽  
C Kneitz ◽  
...  

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