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  • Long-Term Ouabain Infusion in Long-Evans Rats Jingli Wang, Aldo Tempini, Bvuno Scknydev, and Jean-Pierre Montani We tested whether ouabain, an inhibitor of the sodium pump, can lead to chronic hypertension in Long-Evans rats using sensitive 24-h measurements of blood pressure....
  • ouabain, sodium pump, 0895-7061/99/$20.00 PII SO895-7061(98)00250-7 424 WANG ET AL AfH-MARCH a procedure that reduces the kidney’s ability to excrete salt and water, can potentiate the pressor effect of ouabain....
  • Some authors have reported that Long-Evans rats are less sensitive to certain hypertensive agents, such as chronic cold exposure14 and sucrose loading.15 However, uninephrectomy increases blood pressure markedly during sucrose loading.15 Furthermore, Long-Evans rats do not seem to be resistant to mineralocorticoid-induced hypertension, as mineralocorticoid administration 426 WANG AJH-MARCH ET AL leads to similar increases in blood pressure in LongEvans rats, compared with Sprague Dawley rats.i6 Nevertheless, we cannot exclude the possibility that Long-Evans rats may have a different distribution of (Y isoforms of the sodium pump in comparison to other rat species....
  • AJH 1999;12:423– 426 Regulation of Blood Pressure During Long-Term Ouabain Infusion in Long-Evans Rats Jingli Wang, Aldo Tempini, Bruno Schnyder, and Jean-Pierre Montani We tested whether ouabain, an inhibitor of the sodium pump, can lead to chronic hypertension in Long-Evans rats using sensitive 24-h measurements of blood pressure....
  • Furthermore, we also tested whether reduction in renal mass, 0895-7061/99/$20.00 PII S0895-7061(98)00250-7 424 WANG ET AL a procedure that reduces the kidney’s ability to excrete salt and water, can potentiate the pressor effect of ouabain....
  • Some authors have reported that Long-Evans rats are less sensitive to certain hypertensive agents, such as chronic cold exposure14 and sucrose loading.15 However, uninephrectomy increases blood pressure markedly during sucrose loading.15 Furthermore, Long-Evans rats do not seem to be resistant to mineralocorticoid-induced hypertension, as mineralocorticoid administration 426 AJH–MARCH 1999 –VOL. 12, NO. 3 WANG ET AL leads to similar increases in blood pressure in LongEvans rats, compared with Sprague Dawley rats.16 Nevertheless, we cannot exclude the possibility that Long-Evans rats may have a different distribution of ␣ isoforms of the sodium pump in comparison to other rat species....
  • These epidemiological associations between midlife adiposity and later Parkinson’s disease, whose cardinal signs are largely due to the loss of dopamine-producing neurons in the substantia nigra area in the brain, together with clinical observations that obesity is associated with depletion of striatal dopamine D2 receptor availability (Wang et al. 2001), suggest that nigrostriatal system disorders are associated with both Parkinson’s disease and obesity (Abbott et al. 2002)....
  • Wang GJ, Volkow ND, Logan J, Pappas NR, Wong CT, Zhu W, Netusil N & Fowler JS (2001) Brain dopamine and obesity....
Université de Fribourg

Genetic targeting of arginase-ii in mouse prevents renal oxidative stress and inflammation in diet-induced obesity

Huang, Ji ; Rajapakse, Angana ; Xiong, Yuyan ; Montani, Jean-Pierre ; Verrey, François ; Ming, Xiu-Fen ; Yang, Zhihong

In: Frontiers in Physiology, 2016, vol. 7, p. -

Obesity is associated with development and progression of chronic kidney disease (CKD). Recent evidence demonstrates that enhanced levels of the L- arginine:ureahydrolase, including the two isoenzymes arginase-I (Arg-I) and arginase- II (Arg-II) in vascular endothelial cells promote uncoupling of endothelial nitric oxide synthase (eNOS), leading to increased superoxide radical anion and...

  • Commun. 233, 487–491. doi: 10.1006/bbrc.1997.6473 Jiang, T., Wang, Z., Proctor, G., Moskowitz, S., Liebman, S....
  • Metab. 84, 243–251. doi: 10.1016/j.ymgme. 2004.11.004 Cui, W., Maimaitiyiming, H., Qi, X., Norman, H., and Wang, S. (2013)....
  • Neurol. 47, 263–269. doi: 10.1016/ j.pediatrneurol.2012.06.012 Wang, C....
Université de Fribourg

Uninephrectomy-induced lipolysis and low-grade inflammation are mimicked by unilateral renal denervation

Arsenijevic, Denis ; Cajot, Jean-François ; Fellay, Benoit ; Dulloo, Abdul G. ; Vliet, Bruce N. Van ; Montani, Jean-Pierre

In: Integrative Physiology, 2016, p. 227

Uninephrectomy (UniNX) in rats on a fixed food intake leads to increased lipolysis and a low-grade inflammation with an increased subset of circulating cytokines. Because UniNX ablates renal nerves on the side of the removed kidney, we tested the contribution of unilateral renal denervation in the phenotype of UniNX. We compared Sham-operated controls, left nephrectomy (UniNX) and unilateral...

  • ., Wang, X., Hoth, J....
  • A., Zhu, L., Wang, F., et al. (2015)....
  • Leong, J., Zhou, M., Jacob, A., and Wang, P. (2010)....
Université de Fribourg

P38 mitogen-activated protein kinase is involved in arginase-II-mediated eNOS-Uncoupling in Obesity

Yu, Yi ; Rajapakse, Angana G. ; Montani, Jean-Pierre ; Yang, Zhihong ; Ming, Xiu-Fen

In: Cardiovascular Diabetology, 2014, vol. 13, no. 1, p. 113

Background Endothelial nitric oxide synthase (eNOS)-uncoupling links obesity-associated insulin resistance and type-II diabetes to the increased incidence of cardiovascular disease. Studies have indicated that increased arginase is involved in eNOS-uncoupling through competing with the substrate L-arginine. Given that arginase-II (Arg-II) exerts some of its biological functions through crosstalk...

  • Sun Y, Ishibashi M, Seimon T, Lee M, Sharma SM, Fitzgerald KA, Samokhin AO, Wang YB, Sayers S, Aikawa M, Jerome WG, Ostrowski MC, Bromme D, Libby P, Tabas IA, Welch CL, Tall AR: Free cholesterol accumulation in macrophage membranes activates toll-like receptors and p38 mitogen-activated protein kinase and induces cathepsin K....
  • Ma XL, Kumar S, Gao F, Louden CS, Lopez BL, Christopher TA, Wang CL, Lee JC, Feuerstein GZ, Yue TL: Inhibition of p38 mitogen-activated protein kinase decreases cardiomyocyte apoptosis and improves cardiac function after myocardial ischemia and reperfusion....
Université de Fribourg

Quantification of multiple bile acids in uninephrectomized rats using ultra-performance liquid chromatography-tandem mass spectrometry

Penno, Carlos A. ; Arsenijevic, Denis ; Cunha, Thierry Da ; Kullak-Ublic, Gerd A. ; Montani, Jean-Pierre ; Odermatt, Alex

In: Analytical Methods, 2013, vol. 5, p. 1155-1164

In order to study the roles of individual BAs and due to limited blood sample volumes available from experimental animals, improved methods for the simultaneous quantification of multiple BAs are needed. We developed and validated an ultra-performance liquid chromatography tandem mass spectrometry (UPLC-MS/MS) method for the quantification of 24 BAs, including 11 unconjugated, 6...

  • Wang, C....
  • Wang, Z....
  • Wang, W....
Université de Fribourg

Perspectives of targeting mTORC1–S6K1 in cardiovascular aging

Ming, Xiu-Fen ; Montani, Jean-Pierre ; Yang, Zhihong

In: Frontiers in Vascular Physiology, 2012, vol. 3, p. 5

The global population aging is accelerating and age-associated diseases including cardiovascular diseases become more challenging. The underlying mechanisms of aging and age-associated cardiovascular dysfunction remain elusive. There are substantial evidences demonstrating a pivotal role of the mammalian target of rapamycin complex 1 (mTORC1) and its down-stream effector S6K1 signaling in...

  • B., Wang, J., Hacker, T....
  • A., Wang, T....
  • M., and Wang, Y. (2010)....
Université de Fribourg

Non-contact assessment of waist circumference: will tape measurements become progressively obsolete?

Schutz, Y. ; Sarafian, D. ; Miles, J. L. ; Montani, Jean-Pierre ; Dulloo, Abdul G.

In: European Journal of Clinical Nutrition, 2011, p. -

Waist circumference (WC) is a key variable to assess in health management as it is a proxy of abdominal fat mass and a surrogate marker of cardiometabolic disease risk, including the metabolic syndrome. Recently, a portable non-contact device calculating WC (ViScan) has been developed, which hence allows the tracking of WC independently of the inter-investigators error. We compared WC values...

  • Discussion WC is a ‘simple, inexpensive and reliable tool that should be included as part of physical examinations in the doctor’s office’ as pointed out by Wang (2003)....
  • Wang J (2003)....
  • These epidemiological associations between midlife adiposity and later Parkinson’s disease, whose cardinal signs are largely due to the loss of dopamine-producing neurons in the substantia nigra area in the brain, together with clinical observations that obesity is associated with depletion of striatal dopamine D2 receptor availability (Wang et al. 2001), suggest that nigrostriatal system disorders are associated with both Parkinson’s disease and obesity (Abbott et al. 2002)....
  • Wang GJ, Volkow ND, Logan J, Pappas NR, Wong CT, Zhu W, Netusil N & Fowler JS (2001) Brain dopamine and obesity....