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https://www.readbyqxmd.com/read/28300176/nanoscale-zero-valent-iron-persulfate-enhanced-upflow-anaerobic-sludge-blanket-reactor-for-dye-removal-insight-into-microbial-metabolism-and-microbial-community
#1
Fei Pan, Xiaohan Zhong, Dongsheng Xia, Xianze Yin, Fan Li, Dongye Zhao, Haodong Ji, Wen Liu
This study investigated the efficiency of nanoscale zero-valent iron combined with persulfate (NZVI/PS) for enhanced degradation of brilliant red X-3B in an upflow anaerobic sludge blanket (UASB) reactor, and examined the effects of NZVI/PS on anaerobic microbial communities during the treatment process. The addition of NZVI (0.5 g/L) greatly enhanced the decolourization rate of X-3B from 63.8% to 98.4%. The Biolog EcoPlate(TM) technique was utilized to examine microbial metabolism in the reactor, and the Illumina MiSeq high-throughput sequencing revealed 22 phyla and 88 genera of the bacteria...
March 16, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28293234/dysbiosis-of-gut-microbiota-associated-with-clinical-parameters-in-polycystic-ovary-syndrome
#2
Rui Liu, Chenhong Zhang, Yu Shi, Feng Zhang, Linxia Li, Xuejiao Wang, Yunxia Ling, Huaqing Fu, Weiping Dong, Jian Shen, Andrew Reeves, Andrew S Greenberg, Liping Zhao, Yongde Peng, Xiaoying Ding
Polycystic ovary syndrome (PCOS) is a common endocrine and metabolic disorder in women. Gut microbiota has been implicated to play a critical role in metabolic diseases and may modulate the secretion of mediators of the brain-gut axis. Interaction between gut microbiota and the endocrine and biochemical disturbances in PCOS still remains elusive. Here, we showed an altered gut microbiota significantly correlated with PCOS phenotype. There were 33 patients with PCOS (non-obese PCOS individuals, PN, n = 12; obese PCOS individuals, PO, n = 21) as well as 15 control subjects (non-obese control individuals, CN, n = 9; obese control individuals, CO, n = 6) enrolled in our study...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28286571/we-are-not-alone-a-case-for-the-human-microbiome-in-extra-intestinal-diseases
#3
EDITORIAL
S Shivaji
BACKGROUND: "Dysbiosis" in the gut microbiome has been implicated in auto-immune diseases, in inflammatory diseases, in some cancers and mental disorders. The challenge is to unravel the cellular and molecular basis of dysbiosis so as to understand the disease manifestation. MAIN BODY: Next generation sequencing and genome enabled technologies have led to the establishment of the composition of gut microbiomes and established that "dysbiosis" is the cause of several diseases...
2017: Gut Pathogens
https://www.readbyqxmd.com/read/28280715/enterotype-may-drive-the-dietary-associated-cardiometabolic-risk-factors
#4
Ana C F de Moraes, Gabriel R Fernandes, Isis T da Silva, Bianca Almeida-Pititto, Everton P Gomes, Alexandre da Costa Pereira, Sandra R G Ferreira
Analyses of typical bacterial clusters in humans named enterotypes may facilitate understanding the host differences in the cardiometabolic profile. It stills unknown whether the three previously described enterotypes were present in populations living below the equator. We examined how the identification of enterotypes could be useful to explain the dietary associations with cardiometabolic risk factors in Brazilian subjects. In this cross-sectional study, a convenience sample of 268 adults (54.2% women) reported their dietary habits and had clinical and biological samples collected...
2017: Frontiers in Cellular and Infection Microbiology
https://www.readbyqxmd.com/read/28280490/anti-obesity-effect-of-capsaicin-in-mice-fed-with-high-fat-diet-is-associated-with-an-increase-in-population-of-the-gut-bacterium-akkermansia-muciniphila
#5
Wei Shen, Mengyu Shen, Xia Zhao, Hongbin Zhu, Yuhui Yang, Shuguang Lu, Yinling Tan, Gang Li, Ming Li, Jing Wang, Fuquan Hu, Shuai Le
Capsaicin (CAP) reduces body weight mainly through activation of transient receptor potential vanilloid 1 (TRPV1) cation channel. However, recent evidence indicates that the gut microbiota influences many physiological processes in host and might provoke obesity. This study determined whether the anti-obesity effect of CAP is related to the changes in gut microbiota. C57BL/6 mice were fed either with high-fat diet (HFD) or HFD with CAP (HFD-CAP) for 9 weeks. We observed a significantly reduced weight gain and improved glucose tolerance in HFD-CAP-fed mice compared with HFD-fed mice...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28260061/subgingival-dysbiosis-in-smoker-and-non%C3%A2-smoker-patients-with-chronic-periodontitis
#6
Lorena Coretti, Mariella Cuomo, Ermanno Florio, Domenico Palumbo, Simona Keller, Raffaela Pero, Lorenzo Chiariotti, Francesca Lembo, Carlo Cafiero
Periodontitis is one of the most common oral inflammatory diseases, and results in connective tissue degradation and gradual tooth loss. It manifests with formation of periodontal pockets, in which anaerobic and Gram‑negative bacteria proliferate rapidly. Consequently, alteration of the subgingival microbiota is considered the primary etiologic agent of periodontitis. Previous studies have reported that smokers are at increased risk of periodontal disease, in both prevalence and severity, indicating that smoking is a risk factor for the onset and progression of the pathology...
March 1, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28252538/dietary-supplementation-with-nonfermentable-fiber-alters-the-gut-microbiota-and-confers-protection-in-murine-models-of-sepsis
#7
Michael J Morowitz, Valentina Di Caro, Diana Pang, Jessica Cummings, Brian Firek, Matthew B Rogers, Sarangarajan Ranganathan, Robert S B Clark, Rajesh K Aneja
OBJECTIVES: Links between microbial alterations and systemic inflammation have been demonstrated in chronic disease, but little is known about these interactions during acute inflammation. This study investigates the effect of dietary supplementation with cellulose, a nonfermentable fiber, on the gut microbiota, inflammatory markers, and survival in two murine models of sepsis. DESIGN: Prospective experimental study. SETTING: University laboratory...
March 1, 2017: Critical Care Medicine
https://www.readbyqxmd.com/read/28249045/pili-like-proteins-of-akkermansia-muciniphila-modulate-host-immune-responses-and-gut-barrier-function
#8
Noora Ottman, Justus Reunanen, Marjolein Meijerink, Taija E Pietilä, Veera Kainulainen, Judith Klievink, Laura Huuskonen, Steven Aalvink, Mikael Skurnik, Sjef Boeren, Reetta Satokari, Annick Mercenier, Airi Palva, Hauke Smidt, Willem M de Vos, Clara Belzer
Gut barrier function is key in maintaining a balanced response between the host and its microbiome. The microbiota can modulate changes in gut barrier as well as metabolic and inflammatory responses. This highly complex system involves numerous microbiota-derived factors. The gut symbiont Akkermansia muciniphila is positively correlated with a lean phenotype, reduced body weight gain, amelioration of metabolic responses and restoration of gut barrier function by modulation of mucus layer thickness. However, the molecular mechanisms behind its metabolic and immunological regulatory properties are unexplored...
2017: PloS One
https://www.readbyqxmd.com/read/28199741/melatonin-prevents-obesity-through-modulation-of-gut-microbiota-in-mice
#9
Pengfei Xu, Jialin Wang, Fan Hong, Sheng Wang, Xi Jin, Tingting Xue, Li Jia, Yonggong Zhai
Excess weight and obesity are severe public health threats worldwide. Recent evidence demonstrates that gut microbiota dysbiosis contributes to obesity and its comorbidities. The body weight-reducing and energy balancing effects of melatonin have been reported in several studies, but to date, no investigations toward examining whether the beneficial effects of melatonin are associated with gut microbiota have been carried out. In this study, we show that melatonin reduces body weight, liver steatosis, and low-grade inflammation as well as improving insulin resistance in high fat diet (HFD)-fed mice...
February 15, 2017: Journal of Pineal Research
https://www.readbyqxmd.com/read/28191503/differences-in-gut-metabolites-and-microbial-composition-and-functions-between-egyptian-and-u-s-children-are-consistent-with-their-diets
#10
V Shankar, M Gouda, J Moncivaiz, A Gordon, N V Reo, L Hussein, O Paliy
Previous studies indicated that populations consuming a Mediterranean diet rich in fiber, vegetables, and fruits have a significantly lower risk of cardiovascular and metabolic diseases than populations of industrialized societies consuming diets enriched in processed carbohydrates, animal proteins, and fats. To explore the potential contributions of gut microbiota to the observed diet-related metabolic effects, we conducted an integrative analysis of distal gut microbiota composition and functions and intestinal metabolites in Egyptian and U...
January 2017: MSystems
https://www.readbyqxmd.com/read/28187199/differences-in-gut-microbiota-profile-between-women-with-active-lifestyle-and-sedentary-women
#11
Carlo Bressa, María Bailén-Andrino, Jennifer Pérez-Santiago, Rocío González-Soltero, Margarita Pérez, Maria Gregoria Montalvo-Lominchar, Jose Luis Maté-Muñoz, Raúl Domínguez, Diego Moreno, Mar Larrosa
Physical exercise is a tool to prevent and treat some of the chronic diseases affecting the world's population. A mechanism through which exercise could exert beneficial effects in the body is by provoking alterations to the gut microbiota, an environmental factor that in recent years has been associated with numerous chronic diseases. Here we show that physical exercise performed by women to at least the degree recommended by the World Health Organization can modify the composition of gut microbiota. Using high-throughput sequencing of the 16s rRNA gene, eleven genera were found to be significantly different between active and sedentary women...
2017: PloS One
https://www.readbyqxmd.com/read/28180212/kodo-millet-whole-grain-and-bran-supplementation-prevents-high-fat-diet-induced-derangements-in-a-lipid-profile-inflammatory-status-and-gut-bacteria-in-mice
#12
Siddhartha M Sarma, Pragyanshu Khare, Sneha Jagtap, Dhirendra P Singh, Ritesh K Baboota, Koteswaraiah Podili, Ravneet K Boparai, Jaspreet Kaur, Kamlesh K Bhutani, Mahendra Bishnoi, Kanthi Kiran Kondepudi
The protective role of kodo millet whole grain and bran supplementation in diet induced obesity has not been investigated. Here we have studied the role of kodo millet supplementation in age matched Swiss albino mice that were randomly divided into groups and fed their respective diets for 16 weeks. A high fat diet increased weight gain, reduced glucose tolerance, increased serum lipids, altered hepatic and adipocyte gene expression and caused dysbiosis in the intestinal beneficial bacteria. Kodo millet supplementation did not affect weight gain but it improved glucose tolerance and prevented an increase in the serum cholesterol and lipid parameters (P ≤ 0...
February 9, 2017: Food & Function
https://www.readbyqxmd.com/read/28153961/novel-insight-into-the-role-of-microbiota-in-colorectal-surgery
#13
REVIEW
Radu Bachmann, Daniel Leonard, Nathalie Delzenne, Alex Kartheuser, Patrice D Cani
Recent literature undeniably supports the idea that the microbiota has a strong influence on the healing process of an intestinal anastomosis. Understanding the mechanisms by which the bacterial community of the gut influences intestinal healing could open the door for new preventive and therapeutic approaches. Among the different mechanisms, data have shown that the production of specific reactive oxygen species (ROS) and the activation of specific formyl peptide receptors (FPRs) regulate intestinal wound healing...
April 2017: Gut
https://www.readbyqxmd.com/read/28134261/characterization-of-faecal-microbial-communities-of-dairy-cows-fed-diets-containing-ensiled-moringa-oleifera-fodder
#14
Jiajie Sun, Bin Zeng, Zujing Chen, Shijuan Yan, Wenjie Huang, Baoli Sun, Qian He, Xiaoyang Chen, Ting Chen, Qingyan Jiang, Qianyun Xi, Yongliang Zhang
Moringa oleifera (M. oleifera) is a remarkable species with high nutritional value and good biomass production, which can be used as livestock fodder. In this study, we examined changes in the faecal microbiota of thirty dairy cows in response to alternative M. oleifera diets and their effects on nutrient digestion, milk traits and the faecal concentrations of short-chain fatty acids. No differences in milk yield and constituents were found between the control and the M. oleifera alternative groups. Cows fed M...
January 30, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28116930/preparation-and-preservation-of-viable-akkermansia-muciniphila-cells-for-therapeutic-interventions
#15
J P Ouwerkerk, S Aalvink, C Belzer, W M De Vos
The anaerobic gut bacterium Akkermansia muciniphila is a well-characterised member of the mucosal microbiota and has shown to be a gut symbiont in human. A. muciniphila has been negatively associated with obesity and its associated metabolic disorders in various human cohorts while treatment with A. muciniphila cells reversed highfat diet-induced obesity and its associated metabolic disorders in mouse models. Therefore, administration of A. muciniphila has been suggested as a possible new therapeutic treatment for these omnipresent diseases...
January 24, 2017: Beneficial Microbes
https://www.readbyqxmd.com/read/28115375/ursodeoxycholic-acid-and-its-taurine-or-glycine-conjugated-species-reduce-colitogenic-dysbiosis-and-equally-suppress-experimental-colitis-in-mice
#16
Lien Van den Bossche, Pieter Hindryckx, Lindsey Devisscher, Sarah Devriese, Sophie Van Welden, Tom Holvoet, Ramiro Vilchez-Vargas, Marius Vital, Dietmar H Pieper, Julie Vanden Bussche, Lynn Vanhaecke, Tom Van de Wiele, Martine De Vos, Debby Laukens
The promising results seen in studies of secondary bile acids in experimental colitis suggest that they may represent an attractive and safe class of drugs for the treatment of inflammatory bowel diseases (IBD). However, the exact mechanism by which bile acid therapy confers protection from colitogenesis is currently unknown. Since the gut microbiota plays a crucial role in the pathogenesis of IBD, and exogenous bile acid administration may affect the community structure of the microbiota, we examined the impact of the secondary bile acid ursodeoxycholic acid (UDCA) and its taurine or glycine conjugates on the fecal microbial community structure during experimental colitis...
April 1, 2017: Applied and Environmental Microbiology
https://www.readbyqxmd.com/read/28070563/gut-microbiome-of-the-canadian-arctic-inuit
#17
Catherine Girard, Nicolas Tromas, Marc Amyot, B Jesse Shapiro
Diet is a major determinant of community composition in the human gut microbiome, and "traditional" diets have been associated with distinct and highly diverse communities, compared to Western diets. However, most traditional diets studied have been those of agrarians and hunter-gatherers consuming fiber-rich diets. In contrast, the Inuit of the Canadian Arctic have been consuming a traditional diet low in carbohydrates and rich in animal fats and protein for thousands of years. We hypothesized that the Inuit diet and lifestyle would be associated with a distinct microbiome...
January 2017: MSphere
https://www.readbyqxmd.com/read/28057747/complete-genome-sequence-of-akkermansia-glycaniphila-strain-pytt-a-mucin-degrading-specialist-of-the-reticulated-python-gut
#18
Janneke P Ouwerkerk, Jasper J Koehorst, Peter J Schaap, Jarmo Ritari, Lars Paulin, Clara Belzer, Willem M de Vos
Akkermansia glycaniphila is a novel Akkermansia species that was isolated from the intestine of the reticulated python and shares the capacity to degrade mucin with the human strain Akkermansia muciniphila Muc(T) Here, we report the complete genome sequence of strain Pyt(T) of 3,074,121 bp. The genomic analysis reveals genes for mucin degradation and aerobic respiration.
January 5, 2017: Genome Announcements
https://www.readbyqxmd.com/read/28035686/interaction-between-atypical-antipsychotics-and-the-gut-microbiome-in-a-bipolar-disease-cohort
#19
Stephanie A Flowers, Simon J Evans, Kristen M Ward, Melvin G McInnis, Vicki L Ellingrod
OBJECTIVES: The atypical antipsychotic (AAP) class is often associated with metabolic disease, but the mechanistic underpinnings of this risk are not understood. Due to reports linking gut bacteria function to metabolic disease, we hypothesize that AAP treatment in adults results in gut dysbiosis potentiating metabolic criteria. This report describes recent findings linking AAP treatment with differences in gut microbiota communities in a human cohort with bipolar disorder (BD). METHODS: In a cross-sectional design, we obtained 16S ribosomal sequences from 117 BD patients (49 AAP treated, 68 non-AAP treated)...
March 2017: Pharmacotherapy
https://www.readbyqxmd.com/read/28008148/dysbiosis-of-urinary-microbiota-is-positively-correlated-with-type-2-diabetes-mellitus
#20
Fengping Liu, Zongxin Ling, Yonghong Xiao, Longxian Lv, Qing Yang, Baohong Wang, Haifeng Lu, Li Zheng, Ping Jiang, Wei Wang, Lanjuan Li
Type 2 diabetes mellitus (T2DM) may be associated with altered urinary microbiota in female patients. We investigated alterations of urinary microbiota in Chinese female T2DM patients, and explored the associations between urinary microbiota and a patient's fasting blood glucose (FBG), urine glucose (UGLU), age, menstrual status, and body mass index (BMI). Midstream urine was collected from 70 female T2DM patients and 70 healthy females. Microbial diversity and composition were analyzed using the Illumina MiSeq sequencing platform by targeting the hypervariable V3-V4 regions of the 16S rRNA gene...
January 17, 2017: Oncotarget
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