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2013

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Teasaponin Reduces Inflammation And Central Leptin Resistance In Diet-Induced Obese Male Mice, Yinghua Yu, Yizhen Wu, Alexander Szabo, Zhixiang Wu, Hongqin Wang, Duo Li, Xu-Feng Huang Sep 2013

Teasaponin Reduces Inflammation And Central Leptin Resistance In Diet-Induced Obese Male Mice, Yinghua Yu, Yizhen Wu, Alexander Szabo, Zhixiang Wu, Hongqin Wang, Duo Li, Xu-Feng Huang

Yizhen Wu

Chronic inflammation is involved in the pathogenesis of obesity and type 2 diabetes. Recently, teasaponin, an extract from tea, has been shown to have anti-inflammatory effects. We examined the effect of teasaponin on obesity, inflammation, glucose metabolism and central leptin sensitivity, in obese mice fed a high-fat (HF) diet for 16 weeks. Intraperitoneal injections of teasaponin (10mg/kg, daily) for 21 days significantly decreased the food intake and body weight of HF diet-induced obese mice. Teasaponin treatment also reduced the protein levels of pro-inflammatory cytokines (TNF-α, IL-6 and/or IL-1β) and NF-κB signaling (p-IKK and p-IκBα) in adipose tissue and the liver. …


Teasaponin Reduces Inflammation And Central Leptin Resistance In Diet-Induced Obese Male Mice, Yinghua Yu, Yizhen Wu, Alexander Szabo, Zhixiang Wu, Hongqin Wang, Duo Li, Xu-Feng Huang Sep 2013

Teasaponin Reduces Inflammation And Central Leptin Resistance In Diet-Induced Obese Male Mice, Yinghua Yu, Yizhen Wu, Alexander Szabo, Zhixiang Wu, Hongqin Wang, Duo Li, Xu-Feng Huang

Yizhen Wu

Chronic inflammation is involved in the pathogenesis of obesity and type 2 diabetes. Recently, teasaponin, an extract from tea, has been shown to have anti-inflammatory effects. We examined the effect of teasaponin on obesity, inflammation, glucose metabolism and central leptin sensitivity, in obese mice fed a high-fat (HF) diet for 16 weeks. Intraperitoneal injections of teasaponin (10mg/kg, daily) for 21 days significantly decreased the food intake and body weight of HF diet-induced obese mice. Teasaponin treatment also reduced the protein levels of pro-inflammatory cytokines (TNF-α, IL-6 and/or IL-1β) and NF-κB signaling (p-IKK and p-IκBα) in adipose tissue and the liver. …


Dha Prevents Altered 5-Ht1a, 5-Ht2a, Cb1 And Gabaa Receptor Binding Densities In The Brain Of Male Rats Fed A High-Saturated-Fat Diet, Yinghua Yu, Yizhen Wu, Craig Patch, Zhixiang Wu, Alexander Szabo, Duo Li, Xu-Feng Huang Sep 2013

Dha Prevents Altered 5-Ht1a, 5-Ht2a, Cb1 And Gabaa Receptor Binding Densities In The Brain Of Male Rats Fed A High-Saturated-Fat Diet, Yinghua Yu, Yizhen Wu, Craig Patch, Zhixiang Wu, Alexander Szabo, Duo Li, Xu-Feng Huang

Yizhen Wu

Low levels of docosahexaenoic acid (DHA) have been linked to a number of mental illnesses such as memory loss, depression and schizophrenia. While supplementation of DHA is beneficial in improving memory and cognition, the influence of dietary fats on the neurotransmitters and receptors involved in cognitive function is still not known. The aim of this study was to investigate serotonin receptor (5-HT1A and 5-HT2A), cannabinoid receptor (CB1) and gamma-aminobutyric acid type A (GABAA) receptor binding densities in the brain of male rats fed a high-saturated-fat (HF) diet, as well as the effect of DHA supplementation on HF diet. Alterations of …


Reduction Of Histamine H1 Receptor Binding Induced By High-Fat Diet Can Be Prevented By Dha And Dietary Fiber In Specific Brain Areas Of Male Rats, Zhixiang Wu, Yinghua Yu, Yizhen Wu, Craig S. Patch, Alexander Szabo, Xu-Feng Huang Sep 2013

Reduction Of Histamine H1 Receptor Binding Induced By High-Fat Diet Can Be Prevented By Dha And Dietary Fiber In Specific Brain Areas Of Male Rats, Zhixiang Wu, Yinghua Yu, Yizhen Wu, Craig S. Patch, Alexander Szabo, Xu-Feng Huang

Yizhen Wu

High-fat (HF) diet and obesity are risk factors for a number of mental health problems including depression, cognitive dysfunction, dementia, and neurodegenerative diseases. Histamine H1 receptors (H1Rs) are involved in many of these conditions. This study examined H1R receptor binding density in the brain of male rats fed a high-saturated fat (HF) diet, as well as the effect of docosahexaenoic acid (DHA), galacto-oligosaccharide (GOS) and resistant starch (RS) supplementation of HF diet. Alterations of H1R expression in the post-mortem rat brain were detected by [ 3H]-pyrilamine binding autoradiography. We found that HF diet significantly decreased H1R binding densities in the …


Who's Contented Now? Gainsharing And The Paradoxical Female Worker, Theresa M. Welbourne, Mary E. Graham Sep 2013

Who's Contented Now? Gainsharing And The Paradoxical Female Worker, Theresa M. Welbourne, Mary E. Graham

Theresa M. Welbourne, PhD

The "paradox of the contented female worker" describes the phenomenon of women reporting higher work and life satisfaction levels than men, despite being objectively worse off than their male counterparts. Using models of pay satisfaction and theories of equity, distributive justice, and relative deprivation, we examined the existence of this paradox in four companies with gainsharing plans. Results confirm that the paradox prevails for all under traditional pay systems, but under gainsharing, there is no paradox for lower-paid employees and a strong paradox among higher-paid employees.