Review
Gastroenterology & Hepatology
Vivienne Woo, Theresa Alenghat
Summary: The complex relationship between the gastrointestinal tract and microbiota is regulated by epigenetic modifications, including modifications to DNA or histones and regulation of non-coding RNAs. Further research is needed to fully understand the mechanisms of epigenetic regulation.
Review
Biochemistry & Molecular Biology
Hela Mkaouar, Vincent Mariaule, Soufien Rhimi, Juan Hernandez, Aicha Kriaa, Amin Jablaoui, Nizar Akermi, Emmanuelle Maguin, Adam Lesner, Brice Korkmaz, Moez Rhimi
Summary: Inflammatory bowel diseases are incurable disorders with increasing prevalence and global socioeconomic impact. Gut microbiota dysbiosis and increased activity of serine proteases may play roles in the onset and maintenance of the disease, with potential therapeutic relevance of gut microbiota serpins.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2021)
Article
Oncology
Yingying Lyu, Hui Yang, Liang Chen
Summary: The gut-brain axis plays a critical role in understanding various diseases, and the gut microbiota, especially the bacterial population, is crucial for immune system development and function.
SEMINARS IN CANCER BIOLOGY
(2022)
Article
Food Science & Technology
Ying Sun, Zhepeng Zhang, Lu Cheng, Xin Zhang, Yanan Liu, Ruilin Zhang, Peifang Weng, Zufang Wu
Summary: In short, polysaccharides play a crucial role in immune regulation, with close connections between gut microbiota and the immune system, particularly evident in chronic autoimmune diseases such as multiple sclerosis.
FOOD RESEARCH INTERNATIONAL
(2021)
Article
Environmental Sciences
Wenting Lin, Kan Li, Yingjun Qin, Xing Han, Xiaohui Chen, Yuan Ren
Summary: In this study, zebrafish were exposed to the benzodiazepine drug flunitrazepam (FLZ) for 30 days, and the results showed that FLZ disrupted the balance of gut microbiota, leading to pathological damage to the intestine and increased intestinal permeability. FLZ also interfered with nucleotide metabolism and amino acid biosynthesis in the brain, causing pathological changes. This study elucidated the molecular mechanisms of FLZ on the microbiota-gut-brain axis and provided a theoretical basis for the ecological environmental risk assessment of psychoactive substances.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Review
Food Science & Technology
Laura-Berenice Olvera-Rosales, Alma-Elizabeth Cruz-Guerrero, Esther Ramirez-Moreno, Aurora Quintero-Lira, Elizabeth Contreras-Lopez, Judith Jaimez-Ordaz, Araceli Castaneda-Ovando, Javier Anorve-Morga, Zuli-Guadalupe Calderon-Ramos, Jose Arias-Rico, Luis-Guillermo Gonzalez-Olivares
Summary: The gut microbiota is essential for understanding the metabolism of important bacteria and their relationship with human health. Changes in gut microbiota composition may contribute to diseases like diabetes and obesity. Recent studies have focused on the direct relationship between gut microbiota and specific health conditions, as well as the impact of diet on microbiota composition.
Review
Chemistry, Applied
Dingwu Qu, Gang Wang, Leilei Yu, Fengwei Tian, Wei Chen, Qixiao Zhai
Summary: The review discusses the regulation of intestinal mucins glycosylation by host cues and environmental signals, particularly from the microbiome and diets. It summarizes the dynamic alterations of mucin glycosylation induced by immune responses to gut diseases and identifies mechanisms of how dietary components affect intestinal mucin glycosylation and maintain mucosal homeostasis. The review also proposes a potential framework for individualized dietary recommendations to prevent abnormal mucin glycosylation driven by immune dysregulation, gut microbiome alterations, and other factors.
CARBOHYDRATE POLYMERS
(2021)
Review
Microbiology
Hui Han, Bao Yi, Ruqing Zhong, Mengyu Wang, Shunfen Zhang, Jie Ma, Yulong Yin, Jie Yin, Liang Chen, Hongfu Zhang
Summary: Feelings of hunger and satiety play crucial roles in maintaining life; gut microbiota have been implicated in appetite control, potentially affecting host metabolic health and leading to various metabolic disorders.
Article
Veterinary Sciences
Chao Yan, Jinlong Xiao, Zhiwei Li, Hao Liu, Xinjie Zhao, Jian Liu, Siyu Chen, Xingbo Zhao
Summary: The study found that transferring fecal microbiota from aged broilers donors to recipients can improve body weight, behavior, intestinal development, and gut microbiota composition. Fearfulness was higher in the control group compared to the broiler recipient group, while intestinal development indicators were also higher in the BR group. Beta diversity of gut microbiota showed differences between the CK and BR groups.
FRONTIERS IN VETERINARY SCIENCE
(2021)
Article
Environmental Sciences
Miao Wang, Zijian Fan, Ziyue Zhang, Mengmeng Yi, Zhigang Liu, Xiaoli Ke, Fengying Gao, Jianmeng Cao, Maixin Lu
Summary: This study investigated the impact of diet on the dynamics of gut microbiota in Nile tilapia. The results demonstrated that different diet types have a significant effect on the intestinal microbiota of tilapia in their early life stages. These findings provide valuable information for studying the microbial community in the gut of tilapia and suggest the potential for modulating the gut microbiota in the early life stages of these fish.
FRONTIERS IN MARINE SCIENCE
(2022)
Review
Pharmacology & Pharmacy
Giandomenico Roviello, Luigi Francesco Iannone, Melissa Bersanelli, Enrico Mini, Martina Catalano
Summary: Immunotherapy has revolutionized cancer treatment, but reliable biomarkers for predicting treatment response are still unknown. Recent studies suggest that the gut microbiota may play a role in modulating the efficacy and toxicity of immunotherapy drugs.
PHARMACOLOGY & THERAPEUTICS
(2022)
Review
Food Science & Technology
Manuel Bernabeu, Seyed Mohammad Taghi Gharibzahedi, Arsheed A. Ganaie, Muzafar A. Macha, Basharat N. Dar, Juan M. Castagnini, Cristina Garcia-Bonillo, Antonio J. Melendez-Martinez, Zeynep Altintas, Francisco J. Barba
Summary: Gut microbiota plays a crucial role in immune checkpoint therapy, and carotenoids can modulate the microbiome effectively to reduce chronic disease risks. This review focuses on the bio-functional effects of carotenoids on gut microbiota and utilizes the PRISMA methodology to analyze papers published in the past two decades. The results show that carotenoids can lead to quantitative changes in intestinal bacteria, and their modulation of gut microbiota promotes the appearance of beneficial bacteria and protects the intestinal epithelium.
CRITICAL REVIEWS IN FOOD SCIENCE AND NUTRITION
(2023)
Review
Cell Biology
Yun Han Kwon, Waliul I. Khan
Summary: This review examines the interactions between serotonin and the gut microbiota, and discusses their importance for intestinal health. Recent studies have shown bidirectional interactions between the host serotonergic system and the gut microbiota, which may have implications for conditions such as inflammatory bowel disease.
AMERICAN JOURNAL OF PHYSIOLOGY-CELL PHYSIOLOGY
(2022)
Review
Biochemistry & Molecular Biology
Youssef Bouferraa, Andrea Chedid, Ghid Amhaz, Ahmed El Lakkiss, Deborah Mukherji, Sally Temraz, Ali Shamseddine
Summary: The gut microbiota plays a significant role in modulating tumor treatment, particularly in response to and resistance of immune checkpoint inhibitors. Modulating the microbial environment may offer a potential pathway to overcoming treatment resistance.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2021)
Article
Chemistry, Applied
Hualing Xie, Jingyu Fang, Mohamed A. Farag, Zhenhao Li, Peilong Sun, Ping Shao
Summary: This study demonstrates the bioactivity of polysaccharides extracted from Dendrobium officinale leaf (DOLP) in immune deficiency mice. DOLP improves immune status by restoring gut barrier and reducing immune organ atrophy. It also regulates cytokine levels by inhibiting pro-inflammatory cytokines and promoting anti-inflammatory cytokines. Furthermore, DOLP can modulate gut microbiota composition.
Article
Gastroenterology & Hepatology
Vadim Dubinsky, Leah Reshef, Nir Bar, Danielle Keizer, Noam Golan, Keren Rabinowitz, Lihi Godny, Karin Yadgar, Keren Zonensain, Hagit Tulchinsky, Uri Gophna, Iris Dotan
Article
Biotechnology & Applied Microbiology
Yael Yair, Ilya Borovok, Inna Mikula, Rama Falk, Larry K. Fox, Uri Gophna, Inna Lysnyansky
Article
Microbiology
Omer Lavy, Uri Gophna, Eran Gefen, Amir Ayali
FEMS MICROBIOLOGY ECOLOGY
(2020)
Article
Multidisciplinary Sciences
Moran Meir, Noam Harel, Danielle Miller, Maoz Gelbart, Avigdor Eldar, Uri Gophna, Adi Stern
Article
Microbiology
Keren Yanuka-Golub, Vadim Dubinsky, Elisa Korenblum, Leah Reshef, Maya Ofek-Lalzar, Judith Rishpon, Uri Gophna
Summary: The study demonstrates that applying a well-known consortium directly on the anode surface together with wastewater improves the functionality and efficiency of microbial fuel cells (MFCs) compared to just pretreating the anode surface.
Article
Microbiology
Vadim Dubinsky, Leah Reshef, Keren Rabinowitz, Karin Yadgar, Lihi Godny, Keren Zonensain, Nir Wasserberg, Iris Dotan, Uri Gophna
Summary: Patients with pouchitis exhibit significant alterations in microbial species, metabolic pathways, and enzyme functions, with specific enrichment of Ruminococcus gnavus strains and depletion in pathways related to butyrate and secondary bile acid synthesis. Microbial feature-based classifiers have been developed to distinguish between patients with a normal pouch and pouchitis, identifying predictive species and genes for pouchitis. The study highlights potential microbial targets for intervention to attenuate small intestinal inflammation in pouchitis and CD.
Article
Gastroenterology & Hepatology
Nir Bar, Yoav Avraham, Vadim Dubinsky, Nathaniel A. Cohen, Guy A. Weiss, Lian Banon, Hagit Tulchinsky, Nitsan Maharshak, Uri Gophna, Iris Dotan
Summary: This study analyzed patterns of antibiotic use, adverse events, and resistant infections in patients with pouchitis who received long-term antibiotic treatment after surgery. It found that long-term antibiotic use did not significantly increase the risk of resistant infections, but some patients experienced mild adverse events.
INFLAMMATORY BOWEL DISEASES
(2022)
Article
Gastroenterology & Hepatology
Ron Ryvchin, Vadim Dubinsky, Keren Rabinowitz, Nir Wasserberg, Iris Dotan, Uri Gophna
Summary: The study evaluated urease-producing bacteria in inflammatory bowel diseases using public data and found that levels of urease producers were comparable between patients with IBD and non-IBD controls, but there was a trend towards a shift to Bacilli and Proteobacteria in a subset of IBD patients.
JOURNAL OF CROHNS & COLITIS
(2021)
Article
Gastroenterology & Hepatology
Vadim Dubinsky, Leah Reshef, Keren Rabinowitz, Nir Wasserberg, Iris Dotan, Uri Gophna
Summary: This study reveals that Escherichia coli is a commensal species adapted to the overactive mucosal immune milieu in inflammatory bowel disease (IBD) rather than causing it. Mutations that may lead to attenuated antigenicity in some E. coli strains are also identified.
JOURNAL OF CROHNS & COLITIS
(2022)
Article
Microbiology
Nurit Harel, Leah Reshef, Dvora Biran, Sarah Brenner, Eliora Z. Ron, Uri Gophna
Summary: A study conducted on the Mediterranean coast found that the diversity of skin microbiome is minimally influenced by seasons and sun exposure. Even after exposure to summer weather, direct sunlight, and humidity for several months, the skin microbiome remains stable. However, significant differences were observed in the low-abundance species in sun-exposed areas of the skin during the summer months, suggesting potential effects on skin physiology.
Editorial Material
Biochemistry & Molecular Biology
Uri Gophna
Article
Microbiology
Vadim Dubinsky, Iris Dotan, Uri Gophna
Summary: We reconstructed bacterial genomes from specific sites within the human intestines and found that strains at these sites are genetically distinct yet interrelated and derived from a single founder population. Organ-specific metagenomic information can provide valuable insights into gastrointestinal diseases, such as inflammatory bowel disease. This study used metagenomic data obtained from colonoscopy aspirates to reconstruct the genomes of common gut bacteria and revealed site-specific evolution as well as the absence of site-specific adaptations in accessory genes.
Article
Genetics & Heredity
Ambika Dattani, Itai Sharon, Ella Shtifman-Segal, Shachar Robinzon, Uri Gophna, Thorsten Allers, Neta Altman-Price
Summary: Polyploidy is common in haloarchaea, but it is generally considered as an evolutionary trap that leads to the decline or even extinction of a species. In most reported cases, polyploid organisms have an identical genetic state. However, our study found that Haloferax volcanii, a halophilic archaeon, maintains homoploidy, while its close relative H. mediterranei maintains heteroploidy and shows a low rate of homologous recombination. We suggest that H. volcanii escapes Muller's ratchet through an effective chromosome-equalizing gene-conversion mechanism facilitated by highly active homologous recombination, while H. mediterranei must have a different mechanism to elude the ratchet.
G3-GENES GENOMES GENETICS
(2023)
Article
Microbiology
Nurit Harel, Navit Ogen-Shtern, Leah Reshef, Dvora Biran, Eliora Z. Ron, Uri Gophna
Summary: The study shows that daily exposure to sun radiation leads to an increase in specific skin microbiome bacteria, including Sphingomonas and Erythrobacteraceae, which may have the ability to protect against UV radiation. The research specifically demonstrates the resistance of a Sphingomonas strain to UV irradiation and its ability to reduce reactive oxygen species levels in human keratinocytes. These findings provide evidence for the role of the skin microbiome in protecting the skin from solar radiation.
RESEARCH IN MICROBIOLOGY
(2023)
Review
Microbiology
Dan Andersson, Nathalie Q. Balaban, Fernando Baquero, Patrice Courvalin, Philippe Glaser, Uri Gophna, Roy Kishony, Soren Molin, Tone Tonjum
FEMS MICROBIOLOGY REVIEWS
(2020)