scholarly journals Anti-Sarcopenic Obesity Effects of Lonicera caerulea Extract in High-Fat Diet-Fed Mice

Antioxidants ◽  
2021 ◽  
Vol 10 (10) ◽  
pp. 1633
Author(s):  
You-Suk Lee ◽  
Eun-Jung Park ◽  
Sung-Min Kim ◽  
Jong-Yeon Kim ◽  
Hae-Jeung Lee
Keyword(s):  
Body Weight ◽  
Muscle Strength ◽  
Mrna Expression ◽  
Muscle Mass ◽  
Muscle Atrophy ◽  
High Fat Diet ◽  
Sarcopenic Obesity ◽  
High Fat ◽  
Lonicera Caerulea ◽  
Diet Control

Sarcopenic obesity is a combination of sarcopenia and obesity. Although several herbal extracts showed improvement on sarcopenia and obesity, respectively, there are few studies on sarcopenic obesity. Lonicera caerulea (honeysuckle berry, HB) can ameliorate metabolic disorders including obesity. However, its effects on sarcopenic obesity have not been reported yet. Thus, the aim of this study was to investigate whether HB extract might have any beneficial effects on sarcopenic obesity in high-fat diet-induced mice. Forty-eight mice were classified into six groups and treated for eight weeks: (1) NC, normal diet control; (2) HC, high-fat diet control; (3) PC, high-fat diet with orlistat; (4) HB100, high-fat diet with HB extract at 100 mg/kg; (5) HB200, high-fat diet with HB extract at 200 mg/kg; and (6) HB400, high-fat diet with HB extract at 400 mg/kg. Body weight, fat accumulation, muscle mass, muscle strength, and mRNA expression of muscle atrophy were monitored. Compared with the HC group, HB administration showed anti-obesity properties. It reduced body weight gain and modulated serum biochemical parameters and tissue antioxidant enzymes. HB also increased muscle strength and muscle mass of hind legs. In addition, it decreased mRNA expression levels of Atrogin1 and MuRF1 as markers of muscle atrophy but increased PGC1α and SIRT1 as markers of muscle growth. These results suggest that HB might be effective in preventing sarcopenia associated with obesity.

scholarly journals Amyotrophy Induced by a High-Fat Diet Is Closely Related to Inflammation and Protein Degradation Determined by Quantitative Phosphoproteomic Analysis in Skeletal Muscle of C57BL/6 J Mice

2019 ◽  
Vol 150 (2) ◽  
pp. 294-302
Author(s):  
Ya-nan Sun ◽  
Jia-qiang Huang ◽  
Zhong-zhou Chen ◽  
Min Du ◽  
Fa-zheng Ren ◽  
...  
Keyword(s):  
Skeletal Muscle ◽  
Body Weight ◽  
Protein Kinase ◽  
Glucose Metabolism ◽  
Protein Degradation ◽  
Muscle Atrophy ◽  
High Fat Diet ◽  
Molecular Mechanisms ◽  
Serum Glucose ◽  
High Fat

ABSTRACT Background Ectopic fat accumulation in skeletal muscle results in dysfunction and atrophy, but the underlying molecular mechanisms remain unclear. Objective The aim of this study was to investigate the effects of a high-fat diet (HFD) in modulating the structure and energy metabolism of skeletal muscle and the underlying mechanisms in mice. Methods Four-week-old male C57BL/6 J mice (n = 30) were allowed 1 wk for acclimatization. After 6 mice with low body weight were removed from the study, the remaining 24 mice were fed with a normal-fat diet (NFD; 10% energy from fat, n = 12) or an HFD (60% energy from fat, n = 12) for 24 wk. At the end of the experiment, serum glucose and lipid concentrations were measured, and skeletal muscle was collected for atrophy analysis, inflammation measurements, and phosphoproteomic analysis. Results Compared with the NFD, the HFD increased (P < 0.05) body weight (35.8%), serum glucose (64.5%), and lipid (27.3%) concentrations, along with elevated (P < 0.05) expressions of the atrophy-related proteins muscle ring finger 1 (MURF1; 27.6%) and muscle atrophy F-box (MAFBX; 44.5%) in skeletal muscle. Phosphoproteomic analysis illustrated 64 proteins with differential degrees of phosphorylation between the HFD and NFD groups. These proteins were mainly involved in modulating cytoskeleton [adenylyl cyclase-associated protein 2 (CAP2) and actin-α skeletal muscle (ACTA1)], inflammation [NF-κB-activating protein (NKAP) and serine/threonine-protein kinase RIO3 (RIOK3)], glucose metabolism [Cdc42-interacting protein 4 (TRIP10); protein kinase C, and casein kinase II substrate protein 3 (PACSIN3)], and protein degradation [heat shock protein 90 kDa (HSP90AA1)]. The HFD-induced inhibitions of the insulin signaling pathway and activations of inflammation in skeletal muscle were verified by Western blot analysis. Conclusions Quantitative phosphoproteomic analysis in C57BL/6 J mice fed an NFD or HFD for 24 wk revealed that the phosphorylation of inflammatory proteins and proteins associated with glucose metabolism at specific serine residues may play critical roles in the regulation of skeletal muscle atrophy induced by an HFD. This work provides information regarding underlying molecular mechanisms for inflammation-induced dysfunction and atrophy in skeletal muscle.

scholarly journals Combination effects of a fatty diet and exercise on the depressive state and cardioprotection in apolipoprotein E knockout mice with a change in RCAN1 expression

2020 ◽  
Vol 48 (11) ◽  
pp. 030006052096401
Author(s):  
Wang Shuo ◽  
Haicong Li ◽  
Nishijo Muneko ◽  
Nishino Yoshikazu ◽  
Nobuo Kato ◽  
...  
Keyword(s):  
Body Weight ◽  
Apolipoprotein E ◽  
Mrna Expression ◽  
High Fat Diet ◽  
Heart Weight ◽  
High Fat ◽  
Low Fat ◽  
Low Fat Diet ◽  
Apolipoprotein E Knockout Mice ◽  
Diet And Exercise

Objective Regulator of calcineurin 1 (RCAN1) controls plasticity of the nervous system and depressive conditions by regulating brain-derived neurotropic factor (BDNF) and plays a crucial role in neural and cardiac pathways. The apolipoprotein E gene ( ApoE) is a robust risk factor for progression of Alzheimer’s disease. A fatty diet is considered detrimental for metabolic disorders, such as obesity and cardiovascular diseases. Methods We examined the neuronal and cardiac protective roles of RCAN1 in ApoE−/− mice that were fed a high- or low-fat diet with and without voluntary movement for 3 months. Organ weights, laboratory data, histology, RNA expression, and behavior were examined. Results A high-fat diet with exercise improved depressive function, as examined by the forced swimming test, and RCAN1 mRNA expression was induced in the hippocampus. A low-fat diet with exercise resulted in a reduced body weight, higher heart weight/body weight ratio, and lower circulating triglyceride levels compared with a low-fat diet without exercise. RCAN1 mRNA expression was increased in cardiomyocytes in ApoE−/− mice. Conclusions The combination of a high-fat diet and exercise might reduce depressive function, whereas a low-fat diet with exercise leads to cardioprotection. Induction of RCAN1 expression might affect neuroplasticity and cardiac function.

scholarly journals Polyphenol-Rich Fraction of Brown AlgaEcklonia cavaCollected from Gijang, Korea, Reduces Obesity and Glucose Levels in High-Fat Diet-Induced Obese Mice

2012 ◽  
Vol 2012 ◽  
pp. 1-11 ◽  
Author(s):  
Eun Young Park ◽  
Eung Hwi Kim ◽  
Mi Hwi Kim ◽  
Young Wan Seo ◽  
Jung Im Lee ◽  
...  
Keyword(s):  
Type 2 Diabetes ◽  
Body Weight ◽  
Glucose Tolerance ◽  
Mrna Expression ◽  
Inflammatory Cytokines ◽  
High Fat Diet ◽  
Obese Mice ◽  
High Fat ◽  
Glucose Levels

Ecklonia cava (E. cava)is a brown alga that has beneficial effects in models of type 1 and type 2 diabetes. However, the effects ofE. cavaextracts on diet-induced obesity and type 2 diabetes have not been specifically examined. We investigated the effects ofE. cavaon body weight, fat content, and hyperglycemia in high-fat diet- (HFD) induced obese mice and sought the mechanisms involved. C57BL/6 male mice were fed a HFD (60% fat) diet or normal chow. After 3 weeks, the HFD diet group was given extracts (200 mg/kg) ofE. cavaharvested from Jeju (CA) or Gijang (G-CA), Korea or PBS by oral intubation for 8 weeks. Body weights were measured weekly. Blood glucose and glucose tolerance were measured at 7 weeks, and fat pad content and mRNA expression of adipogenic genes and inflammatory cytokines were measured after 8 weeks of treatment. G-CA was effective in reducing body weight gain, body fat, and hyperglycemia and improving glucose tolerance as compared with PBS-HFD mice. The mRNA expression of adipogenic genes was increased, and mRNA expression of inflammatory cytokines and macrophage marker gene was decreased in G-CA-treated obese mice. We suggest that G-CA reduces obesity and glucose levels by anti-inflammatory actions and improvement of lipid metabolism.

scholarly journals EVALUATION OF ANTI-OBESITY ACTIVITY OF SOLASODINE IN HIGH FAT DIET-INDUCED OBESITY IN RAT

2017 ◽  
Vol 9 (3) ◽  
pp. 23 ◽  
Author(s):  
Satish Khaserao ◽  
Rahul Somani
Keyword(s):  
Body Weight ◽  
Total Cholesterol ◽  
Glucose Level ◽  
High Fat Diet ◽  
Total Cholesterol Level ◽  
Diet Group ◽  
Control Group ◽  
High Fat ◽  
Diet Control ◽  
Control Group Group

Objective: This study was planned to study the anti-obesity activities of solasodine on high fat (HF) diet-induced obese rats.Methods: Wistar rats were divided into six groups. Control group (Group 1) received normal diet and 0.5 % CMC (5 ml/kg). HF control group (Group 2) received HF diet. Group 3 received orlistat (25 mg/kg body weight per oral). Group 4, 5 and 6 received 25, 50 and 100 mg/kg body weight solasodine respectively. Treatment was given for 6 w to the respective group along with HF diet. Body weight, food intake and abdomen circumference was measured every week for 6 w. On day 42, the serum biochemical parameters like blood glucose and insulin, serum leptin, total cholesterol and triglyceride were evaluated. Animals were sacrificed with overdose of diethyl ether. The liver and retroperitoneal adipose tissues were removed and weighed immediately.Results: Treatment with solasodine at dose of 50 mg/kg and 100 mg/kg significantly (p<0.001) reduced body weight, abdomen circumference and retroperitoneal adipose tissue weight as compared to the HF diet control group. Solasodine also significantly reduced serum total cholesterol, triglyceride and glucose level as compared to HF diet control group (***p<0.001, **p<0.01, *p<0.05 when compared with normal control. ###p<0.001, #p<0.05 when compared with high fat control). In addition, it also inhibited the induction of fatty liver with accumulation of hepatic triglyceride.Conclusion: Solasodine exhibited anti-obesity effect by showing a reduction in body weight, abdomen circumference, total cholesterol level, triglyceride level and glucose level in high-fat diet fed rats.

scholarly journals The Role of Neuropeptide Y in Adipocyte-Macrophage Crosstalk during High Fat Diet-Induced Adipose Inflammation and Liver Steatosis

Biomedicines ◽  
2021 ◽  
Vol 9 (11) ◽  
pp. 1739
Author(s):  
Seongjoon Park ◽  
Toshimitsu Komatsu ◽  
Hiroko Hayashi ◽  
Ryoichi Mori ◽  
Isao Shimokawa
Keyword(s):  
Body Weight ◽  
Adipose Tissue ◽  
Neuropeptide Y ◽  
Mrna Expression ◽  
High Fat Diet ◽  
Liver Steatosis ◽  
High Fat ◽  
Alcoholic Fatty Liver ◽  
Brown Adipose ◽  
Adipose Inflammation

Obesity is associated with an increased risk of non-alcoholic fatty liver disease (NAFLD), which is initiated by adipocyte-macrophage crosstalk. Among the possible molecules regulating this crosstalk, we focused on neuropeptide Y (NPY), which is known to be involved in hypothalamic appetite and adipose tissue inflammation and metabolism. In this study, the NPY−/− mice showed a marked decrease in body weight and adiposity, and lower free fatty acid and adipose inflammation without food intake alteration during a high fat diet (HFD). Moreover, NPY deficiency increased the thermogenic genes expression in brown adipose tissue. Notably, NPY-mRNA expression was upregulated in macrophages from the HFD mice compared to that from the mice on a standard diet. The NPY-mRNA expression also positively correlated with the liver mass/body weight ratio. NPY deletion alleviated HFD-induced adipose inflammation and liver steatosis. Hence, our findings point toward a novel intracellular mechanism of NPY in the regulation of adipocyte-macrophage crosstalk and highlight NPY antagonism as a promising target for therapeutic approaches against obesity and NAFLD.

scholarly journals Resveratrol attenuates high-fat diet-induced obesity and the aging-related sarcopenia mitochondrial dysfunction in skeletal muscle

2019 ◽  
Author(s):  
Chyi-Huey Bai ◽  
Javad Alizargar ◽  
Jia-Ping Wu
Keyword(s):  
Skeletal Muscle ◽  
Exercise Training ◽  
Muscle Mass ◽  
Mitochondrial Function ◽  
High Fat Diet ◽  
Skeletal Muscles ◽  
Skeletal Muscle Mass ◽  
Sarcopenic Obesity ◽  
High Fat ◽  
Samp8 Mice

AbstractSarcopenic obesity is a progressive loss of skeletal muscle mass and strength with increases in adiposity. The aim of this study was to investigate the effects of resveratrol on obesity or sarcopenia to potential therapy risk for skeletal muscle declines in physical function. C57BL/6J male mice were fed either a high-fat diet for 4 weeks and resveratrol (low-, middle-, and high-dose) for 8 weeks to express the obesity effect. Samp8 mice sarcopenia skeletal muscle functional deterioration expressed an age-associated decline. Resveratrol (150 mg/Kg BW, daily) was administered by oral gavage two times a week one month of the experimental period. Exercise training based on adaptations in the muscle is training twice a week for 4 weeks. The skeletal muscles from mice in each group were analyzed by H&E staining, TUNEL and western blot analysis to determine mitochondrial function expression, apoptosis and relative fibrosis signaling. Results of the present study indicate that resveratrol in obesity skeletal muscle is linked to an increase in the expression of mitochondrial function involved in Bcl-2 and PI3K/AKT. On the other hand, resveratrol attenuates sarcopenia Samp8 mice, the age-related loss of skeletal muscle mass and mitochondrial function involved in Bad, caspase 3 and IL-6/ERK1. However, exercise training not find a significant difference in sarcopenia skeletal muscles SAMP8 mice. Exercise training didn’t induce sarcopenia skeletal muscle hypertrophy in sarcopenic SAMP8 mice. Therefore, we suggest that resveratrol as a therapeutic potential in the combination of sarcopenia and obesity, the state called sarcopenic obesity.

scholarly journals Anti-dyslipidemia Effects of Tart Cherry Dietary Supplementation on Body Weight and Lipid Profiles of Serum in High Fat Diet-Fed Mice

2021 ◽  
Vol 5 (Supplement_2) ◽  
pp. 1192-1192
Author(s):  
Songhee Ahn ◽  
Hyun-Sook !Kim
Keyword(s):  
Body Weight ◽  
Total Cholesterol ◽  
High Fat Diet ◽  
Serum Triglyceride ◽  
Dietary Supplementation ◽  
Control Group ◽  
Tart Cherry ◽  
High Fat ◽  
Cholesterol Levels ◽  
Diet Control

Abstract Objectives The objective of this study was to investigate the anti-dyslipidemia effects of tart cherry supplementation on body weight and lipid profiles of serum in High Fat Diet-Fed Mice. Methods After 2 weeks of adaptation period, forty 7-week-old male C57BL/6J mice were randomly divided into 4 groups (n = 10 per group): normal diet control group (ND), high fat diet control group (HF), HF group fed with 1% tart cherry powder (LC, low dose of cherry), HF group fed with 5% tart cherry powder (HC, high dose of cherry). After 12 weeks of tart cherry dietary supplementation, serum triglyceride (TG), total cholesterol (TC), and high-density lipoprotein cholesterol (HDL-C) were analyzed. Results Final body weight of LC (1%) and HC (5%) was significantly lower than that of HF control group (P &lt; 0.001). Also, body weight gained in LC (1%) and HC (5%) was significantly lower than HF control group (P &lt; 0.001). In serum, triglyceride (TG) and total cholesterol (TC) levels were significantly lower in HC (5%) group compared to HF control group (P &lt; 0.05, P &lt; 0.001, respectively). Serum HDL-cholesterol levels in LC (1%) and HC (5%) groups was significantly higher than HF control group (P &lt; 0.05). Conclusions Tart cherry dietary supplementation may have an anti-dyslipidemia effect in high fat diet-fed mice by lowering body weight gain and modulating serum cholesterol levels. Further analysis of AMPK-regulated fatty acid oxidation biomarkers are under investigation. Funding Sources This study received no external funding.

scholarly journals Increased Hypothalamic Inflammation Associated with the Susceptibility to Obesity in Rats Exposed to High-Fat Diet

2012 ◽  
Vol 2012 ◽  
pp. 1-8 ◽  
Author(s):  
Xiaoke Wang ◽  
Aiguo Ge ◽  
Mengjie Cheng ◽  
Fangfang Guo ◽  
Min Zhao ◽  
...  
Keyword(s):  
Body Weight ◽  
Mrna Expression ◽  
High Fat Diet ◽  
Caloric Intake ◽  
The Body ◽  
Intervention Period ◽  
High Fat ◽  
Low Fat Diet ◽  
Hypothalamic Inflammation ◽  
Obesity Susceptibility

Inflammation has been implicated in the hypothalamic leptin and insulin resistance resulting defective food intake during high fat diet period. To investigate hypothalamic inflammation in dietary induced obesity (DIO) and obesity resistant (DIO-R) rats, we established rat models of DIO and DIO-R by feeding high fat diet for 10 weeks. Then we switched half of DIO and DIO-R rats to chow food and the other half to high fat diet for the following 8 weeks to explore hypothalamic inflammation response to the low fat diet intervention. Body weight, caloric intake, HOMA-IR, as well as the mRNA expression of hypothalamic TLR4, NF-κB, TNF-α, IL-1β, and IL-6 in DIO/HF rats were significantly increased compared to DIO-R/HF and CF rats, whereas IL-10 mRNA expression was lower in both DIO/HF and DIO-R/HF rats compared with CF rats. Switching to chow food from high fat diet reduced the body weight and improved insulin sensitivity but not affecting the expressions of studied inflammatory genes in DIO rats. Take together, upregulated hypothalamic inflammation may contribute to the overeating and development of obesity susceptibility induced by high fat diet. Switching to chow food had limited role in correcting hypothalamic inflammation in DIO rats during the intervention period.

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