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https://www.readbyqxmd.com/read/29352709/analysis-of-gut-microbiota-diversity-and-auxiliary-diagnosis-as-a-biomarker-in-patients-with-schizophrenia-a-cross-sectional-study
#1
Yang Shen, Jintian Xu, Zhiyong Li, Yichen Huang, Ye Yuan, Jixiang Wang, Meng Zhang, Songnian Hu, Ying Liang
With the advent of sequencing technology, characterization of schizophrenia with underlying probing of gut microbiome can provide abundant clues for diagnosis and prognosis of schizophrenia. In this study, we first compared the difference of gut microbiota between schizophrenia patients and healthy controls by 16S rRNA sequencing. We further explored whether gut microbiota can be used as a biomarker to assist in the diagnosis of schizophrenia. We restricted inclusion criteria strictly to control confounding bias...
January 15, 2018: Schizophrenia Research
https://www.readbyqxmd.com/read/29351480/mechanistically-different-effects-of-fat-and-sugar-on-insulin-resistance-hypertension-and-gut-microbiota-in-rats
#2
Sara Ramos-Romero, Mercè Hereu, Lidia Atienza, Josefina Casas, Olga Jáuregui, Susana Amézqueta, Gabriel Dasilva, Isabel Medina, Maria Rosa Nogués, Marta Romeu, Josep Lluís Torres
Insulin resistance (IR) and impaired glucose tolerance (IGT) are the first manifestations of diet-induced metabolic alterations leading to type-2 diabetes, while hypertension is the deadliest risk factor of cardiovascular disease. The roles of dietary fat and fructose in the development of IR, IGT and hypertension are controversial. We tested the long-term effects of an excess of fat or sucrose (fructose/glucose) on healthy male Wistar Kyoto (WKY) rats. Fat affects IR and IGT earlier than fructose through low-grade systemic inflammation evidenced by liver inflammatory infiltration, increased levels of plasma interleukin-6, prostaglandin E2 and reduced levels of protective short-chain fatty acids without triggering hypertension...
January 2, 2018: American Journal of Physiology. Endocrinology and Metabolism
https://www.readbyqxmd.com/read/29350768/diet-affects-gut-microbiota-and-modulates-hospitalization-risk-differentially-in-an-international-cirrhosis-cohort
#3
Jasmohan S Bajaj, Ramazan Idilman, Leila Mabudian, Matthew Hood, Andrew Fagan, Dilara Turan, Melanie B White, Fatih Karakaya, Jessica Wang, Rengül Atalay, Phillip B Hylemon, Edith A Gavis, Robert Brown, Leroy R Thacker, Chathur Acharya, Douglas M Heuman, Masoumeh Sikaroodi, Patrick M Gillevet
The relative ranking of cirrhosis-related deaths differs between high/middle-income countries. Gut microbiome is affected in cirrhosis and related to diet. Our aim was to determine the effect of differing dietary habits on gut microbiota and clinical outcomes. METHODS: Outpatient compensated/decompensated cirrhotics and controls from Turkey and USA underwent dietary and stool microbiota analysis. Cirrhotics were followed till 90-day hospitalizations. Shannon diversity and multi-variable determinants (Cox and binary logistic) of microbial diversity and hospitalizations were studied within/between groups...
January 19, 2018: Hepatology: Official Journal of the American Association for the Study of Liver Diseases
https://www.readbyqxmd.com/read/29345635/genetic-risk-dysbiosis-and-treatment-stratification-using-host-genome-and-gut-microbiome-in-inflammatory-bowel-disease
#4
Ahmed Moustafa, Weizhong Li, Ericka L Anderson, Emily H M Wong, Parambir S Dulai, William J Sandborn, William Biggs, Shibu Yooseph, Marcus B Jones, J Craig Venter, Karen E Nelson, John T Chang, Amalio Telenti, Brigid S Boland
OBJECTIVES: Inflammatory bowel diseases (IBD), comprised of Crohn's disease (CD) and ulcerative colitis (UC), are characterized by a complex pathophysiology that is thought to result from an aberrant immune response to a dysbiotic luminal microbiota in genetically susceptible individuals. New technologies support the joint assessment of host-microbiome interaction. METHODS: Using whole genome sequencing and shotgun metagenomics, we studied the clinical features, host genome, and stool microbial metagenome of 85 IBD patients, and compared the results to 146 control individuals...
January 18, 2018: Clinical and Translational Gastroenterology
https://www.readbyqxmd.com/read/29339808/gut-microbiota-filling-up-on-fibre-for-a-healthy-gut
#5
Katrina Ray
No abstract text is available yet for this article.
January 17, 2018: Nature Reviews. Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/29339259/perturbations-of-the-gut-microbiome-genes-in-infants-with-atopic-dermatitis-according-to-feeding-type
#6
Min-Jung Lee, Mi-Jin Kang, So-Yeon Lee, Eun Lee, Kangjin Kim, Sungho Won, Dong In Suh, Kyung Won Kim, Youn Ho Sheen, Kangmo Ahn, Bong-Soo Kim, Soo-Jong Hong
BACKGROUND: Perturbations of the infant gut microbiota can shape the development of the immune system and link to the risk of allergic diseases. OBJECTIVE: To understand the role of the gut microbiome in atopic dermatitis, the metagenome of the infant gut microbiome was analyzed according to feeding types. METHODS: The composition of gut microbiota was analyzed in fecal samples from 129 infants (6-month-old) by pyrosequencing, including 66 healthy infants and 63 infants with atopic dermatitis...
January 12, 2018: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/29338737/transcriptome-profiling-of-whitefly-guts-in-response-to-tomato-yellow-leaf-curl-virus-infection
#7
Liang Geng, Li-Xin Qian, Ruo-Xuan Shao, Yin-Quan Liu, Shu-Sheng Liu, Xiao-Wei Wang
BACKGROUND: Plant viruses in agricultural crops are of great concern worldwide, and over 75% of them are transmitted from infected to healthy plants by insect vectors. Tomato yellow leaf curl virus (TYLCV) is a begomovirus, which is the largest and most economically important group of plant viruses, transmitted by the whitefly Bemisia tabaci. The circulation of TYLCV in the insect involves complex insect-virus interactions, whereas the molecular mechanisms of these interactions remain ambiguous...
January 16, 2018: Virology Journal
https://www.readbyqxmd.com/read/29335694/the-seventh-biennial-berry-health-benefits-symposium
#8
EDITORIAL
Navindra P Seeram, Britt Burton-Freeman
Research advancing current scientific understanding of the health benefits of berries continues to increase. The Berry Health Benefits Symposium (BHBS) is a biennial meeting highlighting the most recent berry health benefits research from all over the world. Pismo Beach, California was the venue for the seventh biennial BHBS in 2017, and featured oral invited papers on heart health and healthy aging, gut/microbiome health, brain aging, inflammation, cancer prevention, berry special topics, technology and chemistry...
January 16, 2018: Food & Function
https://www.readbyqxmd.com/read/29329233/dose-dependent-effects-of-randomized-intraduodenal-whey-protein-loads-on-glucose-gut-hormone-and-amino-acid-concentrations-in-healthy-older-and-younger-men
#9
Caroline Giezenaar, Natalie D Luscombe-Marsh, Amy T Hutchison, Scott Standfield, Christine Feinle-Bisset, Michael Horowitz, Ian Chapman, Stijn Soenen
Protein-rich supplements are used widely for the prevention and management of malnutrition in older people. We have reported that healthy older, compared to younger, adults have less suppression of energy intake by whey-protein-effects on appetite-related hormones are unknown. The objective was to determine the effects of intraduodenally administered whey-protein on glucose, gut hormone, and amino acid concentrations, and their relation to subsequent ad libitum energy intake at a buffet meal, in healthy older and younger men...
January 12, 2018: Nutrients
https://www.readbyqxmd.com/read/29328543/the-sarda-sheep-host-fecal-proteome
#10
Antonio Palomba, Alessandro Tanca, Maria Filippa Addis, Daniela Pagnozzi, Sergio Uzzau
We recently reported the first characterization of the sheep fecal microbiota, obtained by using a multi-meta-omic approach. Here, the mass spectra generated by single-run LC/high-resolution MS in the context of that study were reanalyzed using a host-specific database, in order to gain insights for the first time into the host fecal proteome of healthy Sarda sheep. On the whole, 5349 non-redundant tryptic peptide sequences were identified, belonging to 1046 different proteins. The "core" fecal proteome (common to all animals) comprised 431 proteins, mainly related to biological processes as immune response and proteolysis...
January 12, 2018: Proteomics
https://www.readbyqxmd.com/read/29325027/pathogens-microbiome-and-the-host-emergence-of-the-ecological-koch-s-postulates
#11
Pascale Vonaesch, Mark Anderson, Philippe J Sansonetti
Even though tremendous progress has been made in the last decades to elucidate the mechanisms of intestinal homeostasis, dysbiosis and disease, we are only at the beginning of understanding the complexity of the gut ecosystem and the underlying interaction networks. We are also only starting to unravel the mechanisms that pathogens have evolved to overcome the barriers imposed by the microbiota and host to exploit the system to their own benefit. Recent work in these domains clearly indicates that the 'traditional Koch's postulate', which state that a given pathogen leads to a distinct disease, are not valid for all 'infectious' diseases, but that a more complete and complex interpretation of the Koch's postulate is needed in order to understand and explain them...
January 9, 2018: FEMS Microbiology Reviews
https://www.readbyqxmd.com/read/29323208/composition-of-salivary-microbiota-in-elderly-subjects
#12
Taiji Ogawa, Yujiro Hirose, Mariko Honda-Ogawa, Minami Sugimoto, Satoshi Sasaki, Masahito Kibi, Shigetada Kawabata, Kazunori Ikebe, Yoshinobu Maeda
Frailty is gaining attention worldwide with the aging of society. Despite the potential lethality and multiple signs and symptoms in affected individuals, preclinical detection of early manifestations leading to frailty syndrome have not been established. We speculated that the composition of the oral microbiota is associated with general frailty, as well as a relationship between gut microbiota and general health condition. In the present study, we investigated the salivary microbiota composition in samples from healthy and frail elderly individuals using 16S rRNA sequencing analysis for characterization...
January 11, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29322681/gut-microbiome-contributes-to-impairment-of-immunity-in-pulmonary-tuberculosis-patients-by-alteration-of-butyrate-and-propionate-producers
#13
Abhijit Maji, Richa Misra, Darshan B Dhakan, Vipin Gupta, Nitish K Mahato, Rituja Saxena, Parul Mittal, Nitin Thukral, Eshan Sharma, Anoop Singh, Richa Virmani, Mohita Gaur, Harshvardhan Singh, Yasha Hasija, Gunjan Arora, Anurag Agrawal, Anil Chaudhry, Jitendra P Khurana, Vineet K Sharma, Rup Lal, Yogendra Singh
Tuberculosis (TB) is primarily associated with decline in immune health status. As gut microbiome (GM) is implicated in the regulation of host immunity and metabolism, here we investigate GM alteration in TB patients by 16S rRNA gene and whole-genome shotgun sequencing. The study group constituted of patients with pulmonary TB and their healthy household contacts as controls (HCs). Significant alteration of microbial taxonomic and functional capacity was observed in patients with active TB as compared to the HCs...
January 2018: Environmental Microbiology
https://www.readbyqxmd.com/read/29321484/loss-of-tolerance-to-gut-immunity-protein-glycoprotein-2-gp2-is-associated-with-progressive-disease-course-in-primary-sclerosing-cholangitis
#14
Tamas Tornai, David Tornai, Nora Sipeki, Istvan Tornai, Rayan Alsulaimani, Kai Fechner, Dirk Roggenbuck, Gary L Norman, Gabor Veres, Gabriella Par, Alajos Par, Ferenc Szalay, Peter Laszlo Lakatos, Peter Antal-Szalmas, Maria Papp
Glycoprotein 2[GP2] is a specific target of pancreatic autoantibodies[PAbs] in Crohn's disease(CD) and is involved in gut innate immunity processes. Our aim was to evaluate the prevalence and prognostic potential of PAbs in primary sclerosing cholangitis(PSC). Sixty-five PSC patients were tested for PAbs by indirect immunofluorescence and compared with healthy (n = 100) and chronic liver disease controls(CLD, n = 488). Additionally, a panel of anti-microbial antibodies and secretory (s)IgA levels were measured, as markers of bacterial translocation and immune dysregulation...
January 10, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29320965/alterations-of-the-gut-microbiota-in-hashimoto-s-thyroiditis-patients
#15
Fuya Zhao, Jing Feng, Jun Li, Lei Zhao, Yang Liu, Huinan Chen, Ye Jin, Biqiang Zhu, Yunwei Wei
BACKGROUND: Hashimoto's thyroiditis (HT) is an organ-specific autoimmune disease in which both genetic predisposition and environmental factors serve as disease triggers. Many studies have indicated that alterations in the gut microbiota are important environmental factors in the development of inflammatory and autoimmune diseases. We systematically performed a comparative analysis of the gut microbiota in HT patients and healthy controls. METHODS: We first conducted a cross-sectional study of 28 HT patients and 16 matched healthy controls...
January 10, 2018: Thyroid: Official Journal of the American Thyroid Association
https://www.readbyqxmd.com/read/29318244/metabolic-fate-of-strawberry-polyphenols-after-chronic-intake-in-healthy-older-adults
#16
Amandeep K Sandhu, Marshall G Miller, Nopporn Thangthaeng, Tammy M Scott, Barbara Shukitt-Hale, Indika Edirisinghe, Britt Burton-Freeman
Strawberries contain a wide array of nutrients and phytochemicals including polyphenols such as anthocyanins, proanthocyanidins and ellagitannins. These polyphenols are absorbed and metabolized to various phenolic metabolites/conjugates in the body, which may play a role in disease risk reduction. In the present study, we investigated the metabolic fate of strawberry polyphenols after chronic (90 days) supplementation of freeze-dried strawberry (24 g d-1, equivalent to 2 cups of fresh strawberries) vs. control powder in 19 healthy older adults...
January 10, 2018: Food & Function
https://www.readbyqxmd.com/read/29316856/food-functionality-research-as-a-new-national-project-in-special-reference-to-improvement-of-cognitive-and-locomotive-abilities
#17
Keiko Abe, Takumi Misaka
In Japan, where a super-aging society is realized, we are most concerned about healthy longevity, which would ascertain the wellness of people by improving their quality of life (QOL). In 2014, the Cabinet Office proposed a strategic innovation promotion programme, launching a national project for the development of the agricultural-forestry-fisheries food products with new functionalities for the next generation. In addition to focusing on a conventional prevention of lifestyle-associated metabolic syndromes, the project targets the scientific evidence of the activation of brain cognitive ability and the improvement of bodily locomotive function...
January 10, 2018: Bioscience, Biotechnology, and Biochemistry
https://www.readbyqxmd.com/read/29316320/human-microbiota-blood-group-antigens-and-disease
#18
REVIEW
D Rose Ewald, Susan C J Sumner
Far from being just "bugs in our guts," the microbiota interacts with the body in previously unimagined ways. Research into the genome and the microbiome has revealed that the human body and the microbiota have a long-established but only recently recognized symbiotic relationship; homeostatic balance between them regulates body function. That balance is fragile, easily disturbed, and plays a fundamental role in human health-our very survival depends on the healthy functioning of these microorganisms. Increasing rates of cardiovascular, autoimmune, and inflammatory diseases, as well as epidemics in obesity and diabetes in recent decades are believed to be explained, in part, by unintended effects on the microbiota from vaccinations, poor diets, environmental chemicals, indiscriminate antibiotic use, and "germophobia...
January 9, 2018: Wiley Interdisciplinary Reviews. Systems Biology and Medicine
https://www.readbyqxmd.com/read/29313275/microbiome-immunomodulation-and-the-neuronal-system
#19
REVIEW
Eric Marietta, Irina Horwath, Veena Taneja
Vertebrates harbor both symbiotic and pathogenic bacteria on the body and various mucosal surfaces. Of these surfaces, the intestine has the most diverse composition. This composition is dependent upon various environmental and genetic factors, with diet exerting the maximum influence. Significant roles of the intestinal bacteria are to stimulate the development of a competent mucosal immune system and to maintain tolerance within the intestine. One manner in which this is achieved is by the establishment of epithelial integrity by microbiota found in healthy individuals (healthy microbiota); however, in the case of a disrupted intestinal microbiome (dysbiosis), which can be caused by various conditions, the epithelial integrity is compromised...
January 8, 2018: Neurotherapeutics: the Journal of the American Society for Experimental NeuroTherapeutics
https://www.readbyqxmd.com/read/29311585/genomic-diversity-and-distribution-of-bifidobacterium-longum-subsp-longum-across-the-human-lifespan
#20
Toshitaka Odamaki, Francesca Bottacini, Kumiko Kato, Eri Mitsuyama, Keisuke Yoshida, Ayako Horigome, Jin-Zhong Xiao, Douwe van Sinderen
Bifidobacterium longum subsp. longum represents one of the most prevalent bifidobacterial species in the infant, adult and elderly (human) gut. In the current study, we performed a comparative genome analysis involving 145 B. longum representatives, including 113 B. longum subsp. longum strains obtained from healthy Japanese subjects aged between 0 and 98 years. Although MCL clustering did not reveal any correlation between isolated strains and subject age, certain characteristics appear to be more prevalent among strains corresponding to specific host ages, such as genes involved in carbohydrate metabolism and environmental response...
January 8, 2018: Scientific Reports
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