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https://www.readbyqxmd.com/read/29143823/salt-responsive-gut-commensal-modulates-th17-axis-and-disease
#1
Nicola Wilck, Mariana G Matus, Sean M Kearney, Scott W Olesen, Kristoffer Forslund, Hendrik Bartolomaeus, Stefanie Haase, Anja Mähler, András Balogh, Lajos Markó, Olga Vvedenskaya, Friedrich H Kleiner, Dmitry Tsvetkov, Lars Klug, Paul I Costea, Shinichi Sunagawa, Lisa Maier, Natalia Rakova, Valentin Schatz, Patrick Neubert, Christian Frätzer, Alexander Krannich, Maik Gollasch, Diana A Grohme, Beatriz F Côrte-Real, Roman G Gerlach, Marijana Basic, Athanasios Typas, Chuan Wu, Jens M Titze, Jonathan Jantsch, Michael Boschmann, Ralf Dechend, Markus Kleinewietfeld, Stefan Kempa, Peer Bork, Ralf A Linker, Eric J Alm, Dominik N Müller
A Western lifestyle with high salt consumption can lead to hypertension and cardiovascular disease. High salt may additionally drive autoimmunity by inducing T helper 17 (TH17) cells, which can also contribute to hypertension. Induction of TH17 cells depends on gut microbiota; however, the effect of salt on the gut microbiome is unknown. Here we show that high salt intake affects the gut microbiome in mice, particularly by depleting Lactobacillus murinus. Consequently, treatment of mice with L. murinus prevented salt-induced aggravation of actively induced experimental autoimmune encephalomyelitis and salt-sensitive hypertension by modulating TH17 cells...
November 15, 2017: Nature
https://www.readbyqxmd.com/read/29118721/gut-brain-axis-in-regulation-of-blood-pressure
#2
REVIEW
Tao Yang, Jasenka Zubcevic
Hypertension (HTN) is an escalating health issue worldwide. It is estimated that 1.56 billion people will suffer from high blood pressure (BP) by 2025. Recent studies reported an association between gut dysbiosis and HTN, thus proposing interesting avenues for novel treatments of this condition. The sympathetic nervous system (SNS) and the immune system (IS) play a recognized role in the onset and progression of HTN, while reciprocal communication between gut microbiota and the brain can regulate BP by modulating the interplay between the IS and SNS...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/29113028/restoration-of-a-healthy-intestinal-microbiota-normalizes-portal-hypertension-in-a-rat-model-of-nonalcoholic-steatohepatitis
#3
Teresa García-Lezana, Imma Raurell, Miren Bravo, Manuel Torres-Arauz, María Teresa Salcedo, Alba Santiago, Andreu Schoenenberger, Chaysavanh Manichanh, Joan Genescà, María Martell, Salvador Augustin
Portal hypertension (PH) drives most of the clinical complications in chronic liver diseases. However, its progression in nonalcoholic steatohepatitis (NASH) and its association with the intestinal microbiota (IM) has been scarcely studied. Our aim was to investigate the role of IM in the mechanisms leading to PH in early NASH. The experimental design was divided in two stages: Stage 1: Sprague-Dawley rats were fed for 8 weeks with high-fat diet and high-glucose/fructose syrup (HFGFD) or control diet/water (CD)...
November 7, 2017: Hepatology: Official Journal of the American Association for the Study of Liver Diseases
https://www.readbyqxmd.com/read/29102544/gut-microbiota-and-hypertension-from-pathogenesis-to-new-therapeutic-strategies
#4
Yongbo Kang, Yue Cai
Hypertension (HTN) has become a global public health concern and a major risk factor for cardiovascular, cerebrovascular, and kidney diseases. The complex interplay of genetic and environmental influences is important for the development of the disease. Accumulating evidence has illustrated the association of dysbiosis of gut microbiota with hypertension. Certain gut microbial strains may play either a pathogenic or a protective role in the development of hypertension. Oral probiotics can therefore represent a therapeutic approach for hypertension treatment...
November 1, 2017: Clinics and Research in Hepatology and Gastroenterology
https://www.readbyqxmd.com/read/29090088/gut-microbiota-as-a-potential-target-of-metabolic-syndrome-the-role-of-probiotics-and-prebiotics
#5
REVIEW
Mingqian He, Bingyin Shi
Metabolic syndrome (MS) comprises central obesity, increased plasma glucose levels, hyperlipidemia and hypertension, and its incidence is increasing due to changes in lifestyle and dietary structure in recent years. MS has been proven to be associated with an increased incidence of cardiovascular diseases and type 2 diabetes mellitus, leading to morbidity and mortality. In this manuscript, we review recent studies concerning the role of the gut microbiota in MS modulation. Manipulation of the gut microbiota through the administration of prebiotics or probiotics may assist in weight loss and reduce plasma glucose and serum lipid levels, decreasing the incidence of cardiovascular diseases and type 2 diabetes mellitus...
2017: Cell & Bioscience
https://www.readbyqxmd.com/read/29064399/pharmabiotics-as-an-emerging-medication-for-metabolic-syndrome-and-its-related-diseases
#6
REVIEW
Thi Thanh Binh Nguyen, Yan Yan Jin, Hea-Jong Chung, Seong-Tschool Hong
Metabolic syndrome (MetS) is a cluster of metabolic risk factors associated with central obesity, hyperglycemia, insulin resistance, dyslipidemia and high blood pressure. In recent decades, because of the remarkable increase in both prevalence and severity, MetS and its related diseases such as cardiovascular diseases (CVDs), obesity, hypertension and diabetes have become the main global burden and challenge in strategic management involving prevention and treatment. However, currently, the preventions and treatments based on pharmaceutical interventions do not provide a solution for MetS and its related diseases...
October 24, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/29044635/development-and-application-of-a-real-time-polymerase-chain-reaction-assay-for-detection-of-a-novel-gut-bacteriophage-crassphage
#7
Yuying Liang, Xin Jin, Yuan Huang, Shuiping Chen
BACKGROUND: crAssphage is a novel and by far the most abundant bacteriophage in human gut. This bacteriophage might modulate gut microbiota balance so as to be involved in some diseases like obesity, diabetes, metabolic disorders, hypertension, and cancer. Therefore, a rapid and reliable detection and quantification method for crAssphage is essential for studying its molecular epidemiology and pathogenicity in human diseases. MATERIALS AND METHODS: The primers-probes set for the quantitative real-time PCR assay was designed based on the DNA polymerase gene (ORF00018) of crAssphage...
October 16, 2017: Journal of Medical Virology
https://www.readbyqxmd.com/read/29023288/gut-microbiome-and-its-role-in-cardiovascular-diseases
#8
Shadi Ahmadmehrabi, W H Wilson Tang
PURPOSE OF REVIEW: In recent years, an interest in intestinal microbiota-host interactions has increased due to many findings about the impact of gut bacteria on human health and disease. Dysbiosis, a change in the composition of the gut microbiota, has been associated with much pathology, including cardiovascular diseases (CVD). This article will review normal functions of the gut microbiome, its link to CVD, and potential therapeutic interventions. RECENT FINDINGS: The recently discovered contribution of gut microbiota-derived molecules in the development of heart disease and its risk factors has significantly increased attention towards the connection between our gut and heart...
November 2017: Current Opinion in Cardiology
https://www.readbyqxmd.com/read/28988228/the-relationship-between-non-alcoholic-fatty-liver-disease-and-small-intestinal-bacterial-overgrowth-among-overweight-and-obese-children-and-adolescents
#9
Oana Belei, Laura Olariu, Andreea Dobrescu, Tamara Marcovici, Otilia Marginean
BACKGROUND: The increasing rate of obesity and overweight among children has highlighted nonalcoholic fatty liver disease (NAFLD) as the most common cause of chronic pediatric liver diseases. There are many publications supporting the idea that gut microbiota is altered in NAFLD. The aim of this study was to evaluate the prevalence of NAFLD among overweight and obese children with and without small intestinal bacterial overgrowth (SIBO) compared to a control group and to assess if intestinal dysbiosis represents a risk factor for NAFLD...
October 26, 2017: Journal of Pediatric Endocrinology & Metabolism: JPEM
https://www.readbyqxmd.com/read/28969447/beneficial-effects-of-a-probiotic-blend-on-gastrointestinal-side-effects-induced-by-leflunomide-and-amlodipine-in-a-rat-model
#10
S-C Song, Y-M An, J-H Shin, M-J Chung, J-G Seo, E Kim
Patients with metabolic disorders frequently suffer from side effects induced by long-term oral medications. The present study using a rat model system indicated that leflunomide (LF) and amlodipine (AMD), the active ingredients contained in the medications for rheumatoid arthritis and hypertension, respectively, appeared to induce various bowel problems including constipation and inflammation. In the small and large intestine, LF increased the expression of tumour necrosis factor (TNF)-α, interleukin (IL)-1β, and IL-6 compared to the null control and AMD increased the expression of both TNF-α and IL-1β, although its effect on IL-6 was only increased in the large intestine...
October 3, 2017: Beneficial Microbes
https://www.readbyqxmd.com/read/28933045/a-prospective-single-arm-trial-of-modified-long-biliopancreatic-and-short-alimentary-limbs-roux-en-y-gastric-bypass-in-type-2-diabetes-patients-with-mild-obesity
#11
Abdon José Murad, Ricardo Vitor Cohen, Eudes Paiva de Godoy, Christian Lamar Scheibe, Giuliano Peixoto Campelo, Almino Cardoso Ramos, Roclides Castro de Lima, Luís Eduardo Veras Pinto, Daniel Coelho, Hamilton Belo França Costa, Ígor Marreiros Pereira Pinto, Tiago Pereira, Francisco Raúl Santos Teófilo, José Aparecido Valadão
BACKGROUND: Type-2 diabetes (T2D) patients with body mass index (BMI) below 35 kg/m(2) carry lower remission rates than severely obese T2D individuals submitted to "standard limb lengths" Roux-en-Y gastric bypass (RYGB). Mild-obese patients appear to have more severe forms of T2D, where the mechanisms of glycemic control after a standard-RYGB may be insufficient. The elongation of the biliopancreatic limb may lead to greater stimulation of the distal intestine, alterations in bile acids and intestinal microbiota, among other mechanisms, leading to better metabolic outcomes...
September 20, 2017: Obesity Surgery
https://www.readbyqxmd.com/read/28884091/alterations-of-the-gut-microbiome-in-hypertension
#12
Qiulong Yan, Yifang Gu, Xiangchun Li, Wei Yang, Liqiu Jia, Changming Chen, Xiuyan Han, Yukun Huang, Lizhe Zhao, Peng Li, Zhiwei Fang, Junpeng Zhou, Xiuru Guan, Yanchun Ding, Shaopeng Wang, Muhammad Khan, Yi Xin, Shenghui Li, Yufang Ma
Introduction: Human gut microbiota is believed to be directly or indirectly involved in cardiovascular diseases and hypertension. However, the identification and functional status of the hypertension-related gut microbe(s) have not yet been surveyed in a comprehensive manner. Methods: Here we characterized the gut microbiome in hypertension status by comparing fecal samples of 60 patients with primary hypertension and 60 gender-, age-, and body weight-matched healthy controls based on whole-metagenome shotgun sequencing...
2017: Frontiers in Cellular and Infection Microbiology
https://www.readbyqxmd.com/read/28876684/differences-in-microbiome-in-rat-models-of-cardiovascular-disease
#13
A Thiba, C A Umar, S Myende, E Nweke, K Rumbold, G Candy
BACKGROUND: Recent studies have underscored the important role the gut metagenome in various human diseases, including diabetes and obesity. Hypertension is a major risk factor for cardiovascular disease, stroke, and heart and kidney failure, and affects approximately 25% of the world's adult population. The cause of essential hypertension remains unknown. Patients given antibiotics show blood pressure changes and transfer of gut bacteria from hypertensive to normal WKY rats resulted in the latter developing hypertension...
June 2017: South African Journal of Surgery. Suid-Afrikaanse Tydskrif Vir Chirurgie
https://www.readbyqxmd.com/read/28857085/enteric-dysbiosis-linked-gut-barrier-disruption-triggers-early-renal-injury-induced-by-chronic-high-salt-feeding-in-mice
#14
Jingjuan Hu, Haihua Luo, Jieyan Wang, Wenli Tang, Junqi Lu, Shan Wu, Zhi Xiong, Guizhi Yang, Zhenguo Chen, Tian Lan, Hongwei Zhou, Jing Nie, Yong Jiang, Peng Chen
Chronic high-salt diet-associated renal injury is a key risk factor for the development of hypertension. However, the mechanism by which salt triggers kidney damage is poorly understood. Our study investigated how high salt (HS) intake triggers early renal injury by considering the 'gut-kidney axis'. We fed mice 2% NaCl in drinking water continuously for 8 weeks to induce early renal injury. We found that the 'quantitative' and 'qualitative' levels of the intestinal microflora were significantly altered after chronic HS feeding, which indicated the occurrence of enteric dysbiosis...
August 25, 2017: Experimental & Molecular Medicine
https://www.readbyqxmd.com/read/28836619/beyond-gut-feelings-how-the-gut-microbiota-regulates-blood-pressure
#15
REVIEW
Francine Z Marques, Charles R Mackay, David M Kaye
Hypertension is the leading risk factor for heart disease and stroke, and is estimated to cause 9.4 million deaths globally every year. The pathogenesis of hypertension is complex, but lifestyle factors such as diet are important contributors to the disease. High dietary intake of fruit and vegetables is associated with reduced blood pressure and lower cardiovascular mortality. A critical relationship between dietary intake and the composition of the gut microbiota has been described in the literature, and a growing body of evidence supports the role of the gut microbiota in the regulation of blood pressure...
August 24, 2017: Nature Reviews. Cardiology
https://www.readbyqxmd.com/read/28796176/bridging-the-gap-between-gut-microbial-dysbiosis-and-cardiovascular-diseases
#16
REVIEW
Kimberley Lau, Varun Srivatsav, Ayesha Rizwan, Andrew Nashed, Rui Liu, Rui Shen, Mahmood Akhtar
The human gut is heavily colonized by a community of microbiota, primarily bacteria, that exists in a symbiotic relationship with the host and plays a critical role in maintaining host homeostasis. The consumption of a high-fat (HF) diet has been shown to induce gut dysbiosis and reduce intestinal integrity. Recent studies have revealed that dysbiosis contributes to the progression of cardiovascular diseases (CVDs) by promoting two major CVD risk factors-atherosclerosis and hypertension. Imbalances in host-microbial interaction impair homeostatic mechanisms that regulate health and can activate multiple pathways leading to CVD risk factor progression...
August 10, 2017: Nutrients
https://www.readbyqxmd.com/read/28713826/characterization-of-oral-microbiota-in-removable-dental-prosthesis-users-influence-of-arterial-hypertension
#17
Leila Maria Marchi-Alves, Dayana Freitas, Denise de Andrade, Simone de Godoy, Adrielle Naiara Toneti, Isabel Amélia Costa Mendes
INTRODUCTION: Studies have described the possible relation between oral infections and atherosclerotic events. OBJECTIVE: To characterize the oral microbiota of normotensive and hypertensive users of dental prostheses. METHODS: The sample consisted of 41 complete dental prosthesis users, divided into groups: 21 participants with systemic arterial hypertension and 20 normotensive participants. The data collection included the characteristics of the sociodemographic variables and the determination of the microbial load in the saliva...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28674682/the-microbiome-and-blood-pressure-%C3%A2-can-microbes-regulate-our-blood-pressure
#18
REVIEW
Souhaila Al Khodor, Bernd Reichert, Ibrahim F Shatat
The surfaces of the human body are heavily populated by a highly diverse microbial ecosystem termed the microbiota. The largest and richest among these highly heterogeneous populations of microbes is the gut microbiota. The collection of microbes and their genes, called the microbiome, has been studied intensely through the past few years using novel metagenomics, metatranscriptomics, and metabolomics approaches. This has enhanced our understanding of how the microbiome affects our metabolic, immunologic, neurologic, and endocrine homeostasis...
2017: Frontiers in Pediatrics
https://www.readbyqxmd.com/read/28624548/glucocorticoids-and-gut-bacteria-the-galf-hypothesis-in-the-metagenomic-era
#19
REVIEW
David J Morris, Jason M Ridlon
A new concept is emerging in biomedical sciences: the gut microbiota is a virtual 'organ' with endocrine function. Here, we explore the literature pertaining to the role of gut microbial metabolism of endogenous adrenocorticosteroids as a contributing factor in the etiology of essential hypertension. A body of literature demonstrates that bacterial products of glucocorticoid metabolism are absorbed into the portal circulation, and pass through the kidney before excretion into urine. Apparent mineralocorticoid excess (AME) syndrome patients were found to have congenital mutations resulting in non-functional renal 11β-hydroxysteroid dehydrogenase-2 (11β-HSD2) and severe hypertension often lethal in childhood...
June 15, 2017: Steroids
https://www.readbyqxmd.com/read/28550391/gut-liver-axis-cirrhosis-and-portal-hypertension-the-chicken-and-the-egg
#20
Juan P Arab, Rosa M Martin-Mateos, Vijay H Shah
The term gut-liver axis is used to highlight the close anatomical and functional relationship between the intestine and the liver. The intestine has a highly specialized epithelial membrane which regulates transport across the mucosa. Due to dysbiosis, impairment of the intestinal barrier and altered immunity status, bacterial products can reach the liver through the portal vein, where they are recognized by specific receptors, activate the immune system and lead to a proinflammatory response. Gut microbiota and bacterial translocation play an important role in the pathogenesis of chronic liver diseases, including alcoholic and non-alcoholic fatty liver disease, cirrhosis, and its complications, such as portal hypertension, spontaneous bacterial peritonitis and hepatic encephalopaty...
May 26, 2017: Hepatology International
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