scholarly journals Beta-Aminoisobutyric Acid Inhibits Hypothalamic Inflammation by Reversing Microglia Activation

Cells ◽  
2019 ◽  
Vol 8 (12) ◽  
pp. 1609 ◽  
Author(s):  
Byong Seo Park ◽  
Thai Hien Tu ◽  
Hannah Lee ◽  
Da Yeon Jeong ◽  
Sunggu Yang ◽  
...  
Keyword(s):  
High Fat Diet ◽  
Microglial Activation ◽  
Metabolic Disorders ◽  
Body Weight Gain ◽  
Aminoisobutyric Acid ◽  
Beneficial Effects ◽  
Tightly Coupled ◽  
Hypothalamic Inflammation ◽  
Inflammatory Processes

Beta-aminoisobutyric acid (BAIBA), a natural thymine catabolite, is involved in the beneficial effects of exercise on metabolic disorders. In particular, it has been reported to reverse the inflammatory processes observed in the peripheral organs of animal models of obesity. Therefore, this study aimed to investigate whether BAIBA improves hypothalamic inflammation, which is also tightly coupled with the development of obesity. We observed that treatment with BAIBA effectively reversed palmitic acid-induced hypothalamic inflammation and microglial activation in vivo. Consistent with these findings, we confirmed that BAIBA reversed body weight gain and increased adiposity observed in mice fed with a high-fat diet. Collectively, the current findings evidence the beneficial impacts of BAIBA on the imbalance of energy metabolism linked to hypothalamic inflammation.

scholarly journals Characterization of Fatty Acid Composition Underlying Hypothalamic Inflammation in Aged Mice

Molecules ◽  
2020 ◽  
Vol 25 (14) ◽  
pp. 3170
Author(s):  
Ye Jin Kim ◽  
Thai Hien Tu ◽  
Sunggu Yang ◽  
Jae Kwang Kim ◽  
Jae Geun Kim
Keyword(s):  
Fatty Acids ◽  
Fatty Acid ◽  
Microglial Activation ◽  
Metabolic Disorders ◽  
Saturated Fatty Acids ◽  
Aged Mice ◽  
Flame Ionization ◽  
Hypothalamic Inflammation ◽  
Inflammatory Processes

Degenerative diseases, which can develop during aging, are underlined by inflammatory processes. Hypothalamic inflammation triggered by elevation in circulating fatty acid levels is directly coupled to metabolic disorders. The present study aimed to investigate and characterize the hypothalamic inflammation and composition of fatty acids in the hypothalami of aged mice. We verified that inflammation and microglial activation occur in the hypothalami of aged mice by performing quantitative real-time PCR and using immunohistochemistry methods. In addition, we observed increased levels of various saturated fatty acids in the hypothalami of aged mice, whereas no major changes in the levels of circulating fatty acids were detected using gas chromatography with a flame ionization detector. Collectively, our current findings suggest that increases in saturated fatty acid levels are coupled to hypothalamic inflammation and thereby cause perturbations in energy metabolism during the aging process.

The beneficial effects of Lactobacillus fermented black barley on high fat diet-induced fatty liver in rats

2021 ◽  
Author(s):  
Qi Guan ◽  
Xinwen Ding ◽  
Lingyue Zhong ◽  
Chuang Zhu ◽  
Pan Nie ◽  
...  
Keyword(s):  
Fatty Liver ◽  
High Fat Diet ◽  
Metabolic Disorders ◽  
High Fat ◽  
Beneficial Effects ◽  
Phytochemical Composition

Long term high-fat diet (HF) can cause metabolic disorders, which might induce fatty liver. Fermented whole cereal food exhibit healthy potential due to their unique phytochemical composition and probiotics. In...

scholarly journals A Standardized Extract Prepared from Red Orange and Lemon Wastes Blocks High-Fat Diet-Induced Hyperglycemia and Hyperlipidemia in Mice

Molecules ◽  
2021 ◽  
Vol 26 (14) ◽  
pp. 4291
Author(s):  
Santina Chiechio ◽  
Magda Zammataro ◽  
Massimo Barresi ◽  
Margherita Amenta ◽  
Gabriele Ballistreri ◽  
...  
Keyword(s):  
Lipid Metabolism ◽  
High Fat Diet ◽  
Extraction Process ◽  
Citrus Limon ◽  
High Fat ◽  
Beneficial Effects ◽  
Positive Effects ◽  
In Vivo Experiments ◽  
Glucose And Lipid Metabolism

Citrus fruits are a rich source of high-value bioactive compounds and their consumption has been associated with beneficial effects on human health. Red (blood) oranges (Citrus sinensis L. Osbeck) are particularly rich in anthocyanins (95% of which are represented by cyanidin-3-glucoside and cyanidin-3-6″-malonyl-glucoside), flavanones (hesperidin, narirutin, and didymin), and hydroxycinnamic acids (caffeic acid, coumaric acid, sinapic, and ferulic acid). Lemon fruit (Citrus limon) is also rich in flavanones (eriocitrin, hesperidin, and diosmin) and other polyphenols. All of these compounds are believed to play a very important role as dietary antioxidants due to their ability to scavenge free radicals. A standardized powder extract, red orange and lemon extract (RLE), was obtained by properly mixing anthocyanins and other polyphenols recovered from red orange processing waste with eriocitrin and other flavanones recovered from lemon peel by a patented extraction process. RLE was used for in vivo assays aimed at testing a potential beneficial effect on glucose and lipid metabolism. In vivo experiments performed on male CD1 mice fed with a high-fat diet showed that an 8-week treatment with RLE was able to induce a significant reduction in glucose, cholesterol and triglycerides levels in the blood, with positive effects on regulation of hyperglycemia and lipid metabolism, thus suggesting a potential use of this new phytoextract for nutraceutical purposes.

scholarly journals Effect of Supplementation with Hydroethanolic Extract of Campomanesia xanthocarpa (Berg.) Leaves and Two Isolated Substances from the Extract on Metabolic Parameters of Mice Fed a High-Fat Diet

Molecules ◽  
2020 ◽  
Vol 25 (11) ◽  
pp. 2693 ◽  
Author(s):  
Carla Maiara Lopes Cardozo ◽  
Aline Carla Inada ◽  
Claudia Andrea Lima Cardoso ◽  
Wander Fernando de Oliveira Filiú ◽  
Bernardo Barcelar de Farias ◽  
...  
Keyword(s):  
High Fat Diet ◽  
Metabolic Disorders ◽  
Brazilian Cerrado ◽  
American Institute ◽  
High Fat ◽  
Beneficial Effects ◽  
Diet Induced Obesity ◽  
Protein Expressions ◽  
Hydroethanolic Extract ◽  
Lipid Parameters

There are still controversies regarding the correlation between the beneficial effects for health and the administration of isolated compounds or crude extracts in therapeutic applications. Campomanesia xanthocarpa, found in the Brazilian Cerrado, demonstrated beneficial effects in metabolic disorders associated with obesity. We investigated the effects of Campomanesia xanthocarpa hydroethanolic extract and two isolated substances from the extract (S1 and S2) in a diet-induced obesity (DIO) model. Male Swiss mice were divided into five groups: (1) American Institute of Nutrition (AIN-93M) diet, (2) high-fat diet (HF), (3) HF supplemented with C. xanthocarpa hydroethanolic leaf extract at 100 mg/kg (HFE), (4) HF supplemented with S1 at 1 mg/kg (HFS1) and (5) HF supplemented with S2 at 1 mg/kg (HFS2). The HFS1, HFS2 and HFE groups did not present decreasing body weight or visceral adiposity gain. No differences in glycemic and lipid parameters, or in the expression of protein content in two cytokines, interleukin-6 (IL-6) and anti-inflammatory (IL-10), were observed. Only the HFS1 group displayed decreased food intake. Even though substantial effects such as an improvement in obesity features or the metabolic and histological parameters promoted by S1, S2 and the extract were not observed, further investigations are necessary to evaluate the principal genes and protein expressions involved in regulating food behavior promoted by S1.

scholarly journals Beneficial Effects of Newly Isolated Akkermansia muciniphila Strains from the Human Gut on Obesity and Metabolic Dysregulation

2020 ◽  
Vol 8 (9) ◽  
pp. 1413
Author(s):  
Meng Yang ◽  
Shambhunath Bose ◽  
Sookyoung Lim ◽  
JaeGu Seo ◽  
JooHyun Shin ◽  
...  
Keyword(s):  
Metabolic Disorders ◽  
Intestinal Inflammation ◽  
Body Weight Gain ◽  
Liver Steatosis ◽  
Caloric Intake ◽  
Hepatic Function ◽  
Low Grade ◽  
Mice Model ◽  
Akkermansia Muciniphila ◽  
Beneficial Effects

The identification of new probiotics with anti-obesity properties has attracted considerable interest. In the present study, the anti-obesity activities of Akkermansia muciniphila (A. muciniphila) strains isolated from human stool samples and their relationship with the gut microbiota were evaluated using a high fat-diet (HFD)-fed mice model. Three strains of A. muciniphila were chosen from 27 isolates selected based on their anti-lipogenic activity in 3T3-L1 cells. The anti-lipogenic, anti-adipogenic and anti-obesity properties of these three strains were evaluated further in HFD-induced obese mice. The animals were administered these strains six times per week for 12 weeks. The treatment improved the HFD-induced metabolic disorders in mice in terms of the prevention of body weight gain, caloric intake and reduction in the weights of the major adipose tissues and total fat. In addition, it improved glucose homeostasis and insulin sensitivity. These effects were also associated with the inhibition of low-grade intestinal inflammation and restoration of damaged gut integrity, prevention of liver steatosis and improvement of hepatic function. These results revealed a difference in the distribution pattern of the gut microbial communities between groups. Therefore, the gut microbial population modulation, at least in part, might contribute to the beneficial impact of the selected A. muciniphila strains against metabolic disorders.

scholarly journals Dihydropyranocoumarins Exerted Anti-Obesity Activity In Vivo and its Activity Was Enhanced by Nanoparticulation with Polylactic-Co-Glycolic Acid

Nutrients ◽  
2019 ◽  
Vol 11 (12) ◽  
pp. 3053
Author(s):  
Hossin ◽  
Inafuku ◽  
Oku
Keyword(s):  
High Fat Diet ◽  
Glycolic Acid ◽  
Body Weight Gain ◽  
Oral Intake ◽  
Mrna Levels ◽  
High Fat ◽  
Mean Size ◽  
The Mean ◽  
Plga Nanoparticle

Dihydropyranocoumarins (DPCs) were isolated from Peucedanum japonicum Thunb as anti-obesity compounds in 3T3-L1 adipocytes assay; however, it is uncertain whether DPC exerts anti-obesity activity in vivo. Therefore, this study evaluated the oral intake of pure DPCs in mice fed a high-fat diet, and also attempted to enhance its activity by nanoparticulation. Increases in body weight gain and fat accumulation in white adipose tissues were significantly suppressed by the dietary intake of DPCs (1.943 mg/mouse/day). DPCs intake also significantly decreased the mean size of adipocytes and upregulated mRNA levels of thermogenesis-related genes. Nanoparticulation of DPCs with polylactic-co-glycolic acid (PLGA) dramatically increased its activity almost 100-fold over that of a non-nanoparticulated form. Thus, our findings clearly demonstrated the anti-obesity activity of DPCs in vivo and suggested that PLGA nanoparticle encapsulation was useful to enhance the anti-obesity activity of DPCs with the aim to develop natural and safe anti-obesity agents.

scholarly journals Anti-Obesity Effect of Diphlorethohydroxycarmalol Isolated from Brown Alga Ishige okamurae in High-Fat Diet-Induced Obese Mice

Marine Drugs ◽  
2019 ◽  
Vol 17 (11) ◽  
pp. 637 ◽  
Author(s):  
Yuling Ding ◽  
Lei Wang ◽  
SeungTae Im ◽  
Ouibo Hwang ◽  
Hyun-Soo Kim ◽  
...  
Keyword(s):  
High Fat Diet ◽  
Body Weight Gain ◽  
Density Lipoprotein ◽  
Lipoprotein Cholesterol ◽  
Epididymal Adipose Tissue ◽  
High Fat ◽  
Expression Levels ◽  
Ishige Okamurae

Diphlorethohydroxycarmalol (DPHC) is one of the most abundant bioactive compounds in Ishige okamurae. The previous study suggested that DPHC possesses strong in vitro anti-obesity activity in 3T3-L1 cells. However, the in vivo anti-obesity effect of DPHC has not been determined. The current study explored the effect of DPHC on high-fat diet (HFD)-induced obesity in C57BL/6J mice. The results indicated that oral administration of DPHC (25 and 50 mg/kg/day for six weeks) significantly and dose-dependently reduced HFD-induced adiposity and body weight gain. DPHC not only decreased the levels of triglyceride, low-density lipoprotein cholesterol, leptin, and aspartate transaminase but also increased the level of high-density lipoprotein cholesterol in the serum of HFD mice. In addition, DPHC significantly reduced hepatic lipid accumulation by reduction of expression levels of the critical enzymes for lipogenesis including SREBP-1c, FABP4, and FAS. Furthermore, DPHC remarkably reduced the adipocyte size, as well as decreased the expression levels of key adipogenic-specific proteins and lipogenic enzymes including PPARγ, C/EBPα, SREBP-1c, FABP4, and FAS, which regulate the lipid metabolism in the epididymal adipose tissue (EAT). Further studies demonstrated that DPHC significantly stimulated the phosphorylation of adenosine monophosphate-activated protein kinase (AMPK) and acetyl-CoA carboxylase (ACC) in both liver and EAT. These results demonstrated that DPHC effectively prevented HFD-induced obesity and suggested that DPHC could be used as a potential therapeutic agent for attenuating obesity and obesity-related diseases.

scholarly journals Paradoxical resistance to high-fat diet-induced obesity and altered macrophage polarization in mineralocorticoid receptor-overexpressing mice

2014 ◽  
Vol 306 (1) ◽  
pp. E75-E90 ◽  
Author(s):  
Emmanuelle Kuhn ◽  
Christine Bourgeois ◽  
Vixra Keo ◽  
Say Viengchareun ◽  
Adeline Muscat ◽  
...  
Keyword(s):  
High Fat Diet ◽  
Mineralocorticoid Receptor ◽  
Body Weight Gain ◽  
Macrophage Polarization ◽  
Metabolic Phenotype ◽  
High Fat ◽  
Glucocorticoid Signaling ◽  
Lower Body Weight

The mineralocorticoid receptor (MR) exerts proadipogenic and antithermogenic effects in vitro, yet its in vivo metabolic impact remains elusive. Wild type (WT) and transgenic (Tg) mice overexpressing human MR were subjected to standard chow (SC) or high-fat diet (HFD) for 16 wk. Tg mice had a lower body weight gain than WT animals and exhibited a relative resistance to HFD-induced obesity. This was associated with a decrease in fat mass, an increased population of smaller adipocytes, and an improved glucose tolerance compared with WT animals. Quantitative RT-PCR studies revealed decreased expression of PPARγ2, a master adipogenic gene, and of glucocorticoid receptor and 11β-hydroxysteroid dehydrogenase type 1, consistent with an impaired local glucocorticoid signaling in adipose tissues (AT). This paradoxical resistance to HFD-induced obesity was not related to an adipogenesis defect since differentiation capacity of Tg preadipocytes isolated from stroma-vascular fractions was unaltered, suggesting that other nonadipocyte factors might compromise AT development. Although AT macrophage infiltration was not different between genotypes, Tg mice exhibited a distinct macrophage polarization, as revealed by FACS analysis and CD11c/CD206 expression studies. We further demonstrated that Tg macrophage-conditioned medium partially impaired preadipocyte differentiation. Therefore, we propose that modification of M1/M2 polarization of hMR-overexpressing macrophages could account in part for the metabolic phenotype of Tg mice. Collectively, our results provide evidence that MR exerts a pivotal immunometabolic role by controlling adipocyte differentiation processes directly but also indirectly through macrophage polarization regulation. Our findings should be taken into account for the pharmacological treatment of metabolic disorders.

scholarly journals GIP receptor antagonist treatment causes weight loss in ovariectomized high fat diet-fed mice

2021 ◽  
Author(s):  
Geke Aline Boer ◽  
Jenna Hunt ◽  
Maria Gabe ◽  
Johanne Windeløv ◽  
Alexander Sparre-Ulricht ◽  
...  
Keyword(s):  
Body Weight ◽  
Weight Gain ◽  
High Fat Diet ◽  
Body Weight Gain ◽  
Pharmacokinetic Profile ◽  
High Fat ◽  
Ovariectomized Mice ◽  
Gip Receptor

Background and purpose The incretin hormone, glucose-dependent insulinotropic polypeptide (GIP), secreted by the enteroendocrine K-cells in the proximal intestine, may regulate lipid metabolism and adiposity but its exact role in these processes is unclear. Experimental approach We characterized in vitro and in vivo antagonistic properties of a novel GIP analogue, mGIPAnt-1. We further assessed the in vivo pharmacokinetic profile of this antagonist, as well as its ability to affect high-fat diet (HFD)-induced body weight gain in ovariectomized mice during an 8-week treatment period. Key results mGIPAnt-1 showed competitive antagonistic properties to the GIP receptor (GIPR) in vitro as it inhibited GIP-induced cAMP accumulation in COS-7 cells. Furthermore, mGIPAnt-1 was capable of inhibiting GIP-induced glucoregulatory and insulinotropic effects in vivo and has a favourable pharmacokinetic profile with a half-life of 7.2 hours in C57Bl6 female mice. Finally, sub-chronic treatment with mGIPAnt-1 in ovariectomized HFD mice resulted in a reduction of body weight and fat mass. Conclusion and Implications mGIPAnt-1 successfully inhibited acute GIP-induced effects in vitro and in vivo and sub-chronically induces resistance to HFD-induced weight gain in ovariectomized mice. Our results support the development of GIP antagonists for the therapy of obesity.

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