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microbiota metabolism syndrome

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https://www.readbyqxmd.com/read/29327584/gama-aminobutyric-acid-enriched-rice-bran-diet-attenuates-insulin-resistance-and-balances-energy-expenditure-via-modification-of-gut-microbiota-and-scfas
#1
Xu Si, Wenting Shang, Zhongkai Zhou, Guanghou Shui, Sin Man Lam, Christopher L Blanchard, Padraig Strappe
In this study, gama-aminobutyric acid (GABA) enriched rice bran (ERB) was supplemented to obese rats to investigate the attenuation of metabolic syndromes induced by high-fat diet. ERB-containing diet stimulated butyrate and propionate production by promoting Anaerostipes, Anaerostipes sp. and associated synthesizing enzymes. This altered SCFA distribution further enhanced circulatory levels of leptin and glucagon-like peptide-1, controlling food intake by down-regulating orexigenic factors. Together with the enhanced fatty acid β-oxidation highlighted by Prkaa2, Ppara, Scd1 expression via AMPK signaling pathway and Non-alcoholic fatty liver disease pathway, energy expenditure was positively modulated...
January 12, 2018: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/29285942/-non-alcoholic-fatty-liver-disease-as-a-component-of-the-metabolic-syndrome-and-its-causal-correlations-with-other-extrahepatic-diseases
#2
Tamás Halmos, Ilona Suba
Non-alcoholic fatty liver disease is the most common non-infectious chronic liver-disease in our age, and is a spectrum of all the diseases associated with increased fat accumulation in the hepatocytes. Its development is promoted by sedentary life-style, over-feeding, and certain genetic predisposition. Prevalence in the adult population, even in Hungary is ~30%. In a part of cases, this disease may pass into non-alcoholic steatohepatitis, later into fibrosis, rarely into primary hepatocellular cancer. Fatty liver is closely and bidirectionally related to the metabolic syndrome and type 2 diabetes, and nowadays there is a general consensus that fatty liver is the hepatic manifestation of the metabolic sycndrome...
December 2017: Orvosi Hetilap
https://www.readbyqxmd.com/read/29283909/an-update-on-the-pathogenesis-of-cholesterol-gallstone-disease
#3
Agostino Di Ciaula, David Q-H Wang, Piero Portincasa
PURPOSE OF REVIEW: Gallstone disease is a major epidemiologic and economic burden worldwide, and the most frequent form is cholesterol gallstone disease. RECENT FINDINGS: Major pathogenetic factors for cholesterol gallstones include a genetic background, hepatic hypersecretion of cholesterol, and supersaturated bile which give life to precipitating cholesterol crystals that accumulate and grow in a sluggish gallbladder. Additional factors include mucin and inflammatory changes in the gallbladder, slow intestinal motility, increased intestinal absorption of cholesterol, and altered gut microbiota...
December 27, 2017: Current Opinion in Gastroenterology
https://www.readbyqxmd.com/read/29276734/stress-the-gut-brain-axis-regulation-by-the-microbiome
#4
REVIEW
Jane A Foster, Linda Rinaman, John F Cryan
The importance of the gut-brain axis in regulating stress-related responses has long been appreciated. More recently, the microbiota has emerged as a key player in the control of this axis, especially during conditions of stress provoked by real or perceived homeostatic challenge. Diet is one of the most important modifying factors of the microbiota-gut-brain axis. The routes of communication between the microbiota and brain are slowly being unravelled, and include the vagus nerve, gut hormone signaling, the immune system, tryptophan metabolism, and microbial metabolites such as short chain fatty acids...
December 2017: Neurobiology of Stress
https://www.readbyqxmd.com/read/29276170/fiber-mediated-nourishment-of-gut-microbiota-protects-against-diet-induced-obesity-by-restoring-il-22-mediated-colonic-health
#5
Jun Zou, Benoit Chassaing, Vishal Singh, Michael Pellizzon, Matthew Ricci, Michael D Fythe, Matam Vijay Kumar, Andrew T Gewirtz
Dietary supplementation with fermentable fiber suppresses adiposity and the associated parameters of metabolic syndrome. Microbiota-generated fiber-derived short-chain fatty acids (SCFAs) and free fatty acid receptors including GPR43 are thought to mediate these effects. We find that while fermentable (inulin), but not insoluble (cellulose), fiber markedly protected mice against high-fat diet (HFD)-induced metabolic syndrome, the effect was not significantly impaired by either inhibiting SCFA production or genetic ablation of GPR43...
December 12, 2017: Cell Host & Microbe
https://www.readbyqxmd.com/read/29250522/fibromyalgia-syndrome-a-metabolic-approach-grounded-in-biochemistry-for-the-remission-of-symptoms
#6
Silvia Maria Lattanzio
Fibromyalgia syndrome (FMS) is a chronic, complex, and heterogeneous disorder of still poorly understood etiopathophysiology associated with important musculoskeletal widespread pain, fatigue, non-restorative sleep, and mood disturbances. It is estimated to afflict 2-3% of the worldwide population, with clean prevalence among women. The objective of this paper is to propose a novel treatment for symptomatic remission of FMS, grounded in biochemistry and consisting in the withdrawal from the diet of molecules that can indirectly trigger the symptoms...
2017: Frontiers in Medicine
https://www.readbyqxmd.com/read/29223004/towards-utilization-of-the-human-genome-and-microbiome-for-personalized-nutrition
#7
REVIEW
Stavros Bashiardes, Anastasia Godneva, Eran Elinav, Eran Segal
Generalized dietary and lifestyle guidelines have been formulated and published for decades now from a variety of relevant agencies in an attempt to guide people towards healthy choices. As the pandemic rise in metabolic diseases continues to increase, it has become clear that the one-fit-for-all diet approach does not work and that there is a significant variation in inter-individual responses to diet and lifestyle interventions. Recent technological advances have given an unprecedented insight into the sources of this variation, pointing towards our genome and microbiome as potentially and previously under-explored culprits contributing to individually unique dietary responses...
December 6, 2017: Current Opinion in Biotechnology
https://www.readbyqxmd.com/read/29211803/hypoxia-and-inactivity-related-physiological-changes-precede-or-take-place-in-absence-of-significant-rearrangements-in-bacterial-community-structure-the-planhab-randomized-trial-pilot-study
#8
Robert Šket, Nicole Treichel, Susanne Kublik, Tadej Debevec, Ola Eiken, Igor Mekjavić, Michael Schloter, Marius Vital, Jenna Chandler, James M Tiedje, Boštjan Murovec, Zala Prevoršek, Matevž Likar, Blaž Stres
We explored the assembly of intestinal microbiota in healthy male participants during the randomized crossover design of run-in (5 day) and experimental phases (21-day normoxic bed rest (NBR), hypoxic bed rest (HBR) and hypoxic ambulation (HAmb) in a strictly controlled laboratory environment, with balanced fluid and dietary intakes, controlled circadian rhythm, microbial ambiental burden and 24/7 medical surveillance. The fraction of inspired O2 (FiO2) and partial pressure of inspired O2 (PiO2) were 0.209 and 133...
2017: PloS One
https://www.readbyqxmd.com/read/29209439/comparative-study-of-probiotic-effects-of-lactobacillus-and-bifidobacteria-strains-on-cholesterol-levels-liver-morphology-and-the-gut-microbiota-in-obese-mice
#9
Rostyslav V Bubnov, Lidiia P Babenko, Liudmyla M Lazarenko, Viktoria V Mokrozub, Oleksandr A Demchenko, Oleksiy V Nechypurenko, Mykola Ya Spivak
Background: Microbiome-modulating interventions are promising for treatment and prevention of metabolic syndrome. The number of probiotic strains demonstrated ability to decrease cholesterol level in vivo, however, it was poorly confirmed in a clinical setting. The aim was to study the effects of L. acidophilus IMV B-7279, L. casei IMV B-7280, B. animalіs VKL and B. animalіs VKB separately and in various compositions on the level of serum cholesterol, gut microbiota contents and liver morphology on a high-calorie-induced obesity model in BALB/c mice...
December 2017: EPMA Journal
https://www.readbyqxmd.com/read/29201045/functional-bowel-disorders-are-associated-with-a-central-immune-activation
#10
Per G Farup, Thor Ueland, Knut Rudi, Stian Lydersen, Knut Hestad
Background: Subjects with depression and unexplained neurological symptoms have a high prevalence of gastrointestinal comorbidity probably related to the brain-gut communication. This study explored associations between functional gastrointestinal disorders (FGID) and inflammatory markers in subjects with these disorders. Methods: The FGID, including irritable bowel syndrome (IBS), were classified according to the Rome III criteria, and degree of symptoms was assessed with IBS symptom severity score (IBS-SSS)...
2017: Gastroenterology Research and Practice
https://www.readbyqxmd.com/read/29197664/emerging-metabolic-risk-factors-in-hepatocellular-carcinoma-and-their-influence-on-the-liver-microenvironment
#11
REVIEW
Pasquale Agosti, Carlo Sabbà, Antonio Mazzocca
Despite the reducing incidence of chronic hepatitis infections, an unexpected increasing incidence of hepatocellular carcinoma (HCC) has being occurred. This may be explained by the increasing number of HCCs developing on steatosis (NAFLD) and steatohepatitis (NASH), related to metabolic risk factors (i.e. diabetes mellitus type II, obesity, metabolic syndrome), which are becoming emerging risk factors for HCC. This led to a growing scientific interest on the oncogenic mechanisms underlying the transition from NAFLD to HCC...
November 29, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/29196049/chronic-glucocorticoid-treatment-induced-circadian-clock-disorder-leads-to-lipid-metabolism-and-gut-microbiota-alterations-in-rats
#12
Tao Wu, Luna Yang, Jianguo Jiang, Yinhua Ni, Jiawei Zhu, Xiaojun Zheng, Qi Wang, Xin Lu, Zhengwei Fu
AIM: Glucocorticoids (GCs), steroid hormones synthetized by the adrenal gland, are regulated by circadian cycles, and dysregulation of GC signaling can lead to the development of metabolic syndrome. The effects and potential mechanism of GCs in physiology were investigated in the present study. MAIN METHODS: Male Wistar rats were orally administered dexamethasone sodium phosphate (DEX, 0.01 and 0.05mg/kg body weight per day) for 7weeks. KEY FINDING: DEX treatment attenuated body weight gain and reduced food intake, whereas it induced the accumulation of fat...
November 28, 2017: Life Sciences
https://www.readbyqxmd.com/read/29183720/contemporary-applications-of-fecal-microbiota-transplantation-to-treat-intestinal-diseases-in-humans
#13
REVIEW
Christopher Staley, Alexander Khoruts, Michael J Sadowsky
The intestinal microbiota comprise an important organ that plays a vital role in host digestion, development, energy maintenance, hemostasis, and immunity. Disruption of the gut microbial community due to diet, lifestyle, or antibiotic exposure increases susceptibility to chronic infection and disease. Fecal microbiota transplantation (FMT) involves the transfer of gut microbiota from a healthy donor to a patient in order to restore normal diversity and function of the microbial community. This method has become a well established alternative therapy for the treatment of recurrent Clostridium difficile infection...
November 25, 2017: Archives of Medical Research
https://www.readbyqxmd.com/read/29178599/gut-microbiome-induced-shift-of-acetate-to-butyrate-positively-manages-dysbiosis-in-high-fat-diet
#14
Xu Si, Wenting Shang, Zhongkai Zhou, Padraig Strappe, Bing Wang, Anthony Bird, Chris Blanchard
SCOPE: A recent study revealed the accumulation of gut microbiota-produced acetate (GMPA) led to insulin over-secretion and obesity symptom. To further develop this scientific point, effect of resistant starch (RS) or exogenous acetate carried by RS (RSA) in the gut on metabolic syndrome is investigated using diet-induced obese rats. METHODS AND RESULTS: The metabonomics analysis showed that the gut of rats in RSA group generated more significant butyrate both in serum and feces rather than acetate compared to the rats in RS group, indicating the conversion among metabolites, in particular from acetate to butyrate via gut microbiota...
November 26, 2017: Molecular Nutrition & Food Research
https://www.readbyqxmd.com/read/29167556/alterations-in-gut-microbiota-associated-with-a-cafeteria-diet-and-the-physiological-consequences-in-the-host
#15
J M Del Bas, M Guirro, N Boqué, A Cereto, R Ras, A Crescenti, A Caimari, N Canela, L Arola
OBJECTIVE: Gut microbiota have been described as key players in the pathophysiology of obesity and different components of metabolic syndrome (MetS). The cafeteria diet (CAF)-fed rat is a preclinical model that reproduces most of the alterations found in human MetS by simulating a palatable human unbalanced diet. Our objective was to assess the effects of CAF on gut microbiota and their associations with different components of MetS in Wistar rats. METHODS: Animals were fed a standard diet or CAF for 12 weeks...
November 23, 2017: International Journal of Obesity: Journal of the International Association for the Study of Obesity
https://www.readbyqxmd.com/read/29158587/analysis-of-the-gut-microbiome-and-plasma-short-chain-fatty-acid-profiles-in-a-spontaneous-mouse-model-of-metabolic-syndrome
#16
Kazuchika Nishitsuji, Jinzhong Xiao, Ryosuke Nagatomo, Hitomi Umemoto, Yuki Morimoto, Hiroyasu Akatsu, Koichi Inoue, Koichi Tsuneyama
Male Tsumura Suzuki obese diabetes (TSOD) mice spontaneously develop obesity and obesity-related metabolic syndrome. Gut dysbiosis, an imbalance of gut microbiota, has been implicated in the pathogenesis of metabolic syndrome, but its mechanisms are unknown. Short-chain fatty acids (SCFAs) are the main fermentation products of gut microbiota and a link between the gut microbiota and the host's physiology. Here, we investigated a correlation among gut dysbiosis, SCFAs, and metabolic syndrome in TSOD mice. We detected enriched levels of Gram-positive bacteria and corresponding decreases in Gram-negative bacteria in 24-wk-old metabolic syndrome-affected TSOD mice compared with age-matched controls...
November 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29156933/-prevention-of-obesity-from-perinatal-stage
#17
Rosa Mª Martínez García, Ana Isabel Jiménez Ortega, Heldry González Torres, Rosa María Ortega
Obesity is one of the major health problems and a determining factor in the prevalence of diseases such as metabolic syndrome, asthma, sleep apnea, infertility and various types of cancer. Its origin is multifactorial, involving genetic, socioeconomic and environmental factors. These last ones contribute mostly to explain the current epidemic growth of this disease. The sedentary lifestyle, inadequate diet, lack of sleep, alterations in intestinal microbiota and stress are factors related to its development...
October 15, 2017: Nutrición Hospitalaria: Organo Oficial de la Sociedad Española de Nutrición Parenteral y Enteral
https://www.readbyqxmd.com/read/29155324/angiotensin-receptor-blocker-irbesartan-reduces-stress-induced-intestinal-inflammation-via-at1a-signaling-and-ace2-dependent-mechanism-in-mice
#18
Maimaiti Yisireyili, Yasuhiro Uchida, Koji Yamamoto, Takayuki Nakayama, Xian Wu Cheng, Tadashi Matsushita, Shigeo Nakamura, Toyoaki Murohara, Kyosuke Takeshita
Stress is associated with pathophysiology of both irritable bowel syndrome (IBS) and hypertension. Angiotensin receptor blockers (ARB) have anti-inflammatory properties via inhibition of angiotensin II (Ang II)/Ang II type I receptor axis (AT1). Inhibition of the classical RAS pathway is also involved in upregulation of angiotensin converting enzyme-2 (ACE2), which activates the Ang-(1-7)/Mas pathway to counteract inflammatory signaling and acts as a partner of the amino acid transporter, B0AT-1, to absorb tryptophan for regulation of microbiota-gut-brain axis...
November 16, 2017: Brain, Behavior, and Immunity
https://www.readbyqxmd.com/read/29131494/antimicrobial-emulsifier-glycerol-monolaurate-induces-metabolic-syndrome-gut-microbiota-dysbiosis-and-systemic-low-grade-inflammation-in-low-fat-diet-fed-mice
#19
Zengliang Jiang, Minjie Zhao, Hui Zhang, Yang Li, Mengyun Liu, Fengqin Feng
SCOPE: Glycerol monolaurate (GML) was widely consumed worldwide in food industry, and considered as safe, yet for chronic diseases, supporting scientific data remain sparse. This study was to investigate whether dietary GML induces metabolic syndrome, gut microbiota dysbiosis and systemic low-grade inflammation. METHODS AND RESULTS: GML-induced occurrence of metabolic syndrome, gut microbiota alterations and systemic low-grade inflammation were investigated. Our results demonstrated that GML induced metabolic syndrome by significantly increasing the body weight, weight gain, food intake, body fat, fat droplet size and percentage of epididymal fat, serum triglycerides (TG), LDL and atherogenic index, and decreasing the body muscle ratio, liver weight and HDL, compared to the CON group...
November 13, 2017: Molecular Nutrition & Food Research
https://www.readbyqxmd.com/read/29107964/obesogenic-diet-induced-gut-barrier-dysfunction-and-pathobiont-expansion-aggravate-experimental-colitis
#20
June-Chul Lee, Hae-Youn Lee, Tae Kang Kim, Min-Soo Kim, Young Mi Park, Jinyoung Kim, Kihyoun Park, Mi-Na Kweon, Seok-Hyung Kim, Jin-Woo Bae, Kyu Yeon Hur, Myung-Shik Lee
Consumption of a typical Western diet is a risk factor for several disorders. Metabolic syndrome is the most common disease associated with intake of excess fat. However, the incidence of inflammatory bowel disease is also greater in subjects consuming a Western diet, although the mechanism of this phenomenon is not clearly understood. We examined the morphological and functional changes of the intestine, the first site contacting dietary fat, in mice fed a high-fat diet (HFD) inducing obesity. Paneth cell area and production of antimicrobial peptides by Paneth cells were decreased in HFD-fed mice...
2017: PloS One
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