T
Tali Avnit-Sagi
Researcher at Weizmann Institute of Science
Publications - 12
Citations - 4607
Tali Avnit-Sagi is an academic researcher from Weizmann Institute of Science. The author has contributed to research in topics: Microbiome & Gene. The author has an hindex of 11, co-authored 12 publications receiving 3264 citations.
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Journal ArticleDOI
Personalized Nutrition by Prediction of Glycemic Responses
David Zeevi,Tal Korem,Niv Zmora,Niv Zmora,David Israeli,Daphna Rothschild,Adina Weinberger,Orly Ben-Yacov,Dar Lador,Tali Avnit-Sagi,Maya Lotan-Pompan,Jotham Suez,Jemal Ali Mahdi,Elad Matot,Gal Malka,Noa Kosower,Michal Rein,Gili Zilberman-Schapira,Lenka Dohnalová,Meirav Pevsner-Fischer,Rony Bikovsky,Zamir Halpern,Eran Elinav,Eran Segal +23 more
TL;DR: A machine-learning algorithm is devised that integrates blood parameters, dietary habits, anthropometrics, physical activity, and gut microbiota measured in an 800-person cohort and shows that it accurately predicts personalized postprandial glycemic response to real-life meals, and a blinded randomized controlled dietary intervention based on this algorithm resulted in significantly lower postpr andial responses and consistent alterations to gut microbiota configuration.
Journal ArticleDOI
Environment dominates over host genetics in shaping human gut microbiota
Daphna Rothschild,Omer Weissbrod,Elad Barkan,Alexander Kurilshikov,Tal Korem,David Zeevi,Paul I. Costea,Anastasia Godneva,Iris N. Kalka,Noam Bar,Smadar Shilo,Dar Lador,Arnau Vich Vila,Niv Zmora,Niv Zmora,Meirav Pevsner-Fischer,David Israeli,Noa Kosower,Gal Malka,Bat Chen Wolf,Tali Avnit-Sagi,Maya Lotan-Pompan,Adina Weinberger,Zamir Halpern,Shai Carmi,Jingyuan Fu,Cisca Wijmenga,Cisca Wijmenga,Alexandra Zhernakova,Eran Elinav,Eran Segal +30 more
TL;DR: Genotype and microbiome data from 1,046 healthy individuals with several distinct ancestral origins who share a relatively common environment are examined, and it is demonstrated that the gut microbiome is not significantly associated with genetic ancestry, and that host genetics have a minor role in determining microbiome composition.
Journal ArticleDOI
Growth dynamics of gut microbiota in health and disease inferred from single metagenomic samples
Tal Korem,David Zeevi,Jotham Suez,Adina Weinberger,Tali Avnit-Sagi,Maya Pompan-Lotan,Elad Matot,Ghil Jona,Alon Harmelin,Nadav Cohen,Alexandra Sirota-Madi,Christoph A. Thaiss,Meirav Pevsner-Fischer,Rotem Sorek,Ramnik J. Xavier,Eran Elinav,Eran Segal +16 more
TL;DR: The pattern of metagenomic sequencing read coverage for different microbial genomes contains a single trough and a single peak, the latter coinciding with the bacterial origin of replication, and the ratio of sequencing coverage between the peak and trough provides a quantitative measure of a species’ growth rate.
Journal ArticleDOI
Bread Affects Clinical Parameters and Induces Gut Microbiome-Associated Personal Glycemic Responses
Tal Korem,David Zeevi,Niv Zmora,Omer Weissbrod,Noam Bar,Maya Lotan-Pompan,Tali Avnit-Sagi,Noa Kosower,Gal Malka,Michal Rein,Jotham Suez,Ben Z. Goldberg,Adina Weinberger,Avraham A. Levy,Eran Elinav,Eran Segal +15 more
TL;DR: A randomized crossover trial of two 1-week-long dietary interventions comprising consumption of either traditionally made sourdough-leavened whole-grain bread or industrially made white bread shows marked personalization in both bread metabolism and the gut microbiome, suggesting that understanding dietary effects requires integration of person-specific factors.
Journal ArticleDOI
Epithelial microRNAs regulate gut mucosal immunity via epithelium–T cell crosstalk
Moshe Biton,Avi Levin,Avi Levin,Michal Slyper,Irit Alkalay,Elad Horwitz,Hagar Mor,Sharon Kredo-Russo,Tali Avnit-Sagi,Gady Cojocaru,Farid Zreik,Zvi Bentwich,Matthew N. Poy,David Artis,Michael D. Walker,Eran Hornstein,Eli Pikarsky,Yinon Ben-Neriah +17 more
TL;DR: It is shown that epithelial microRNAs mediate the mucosa–immune system crosstalk necessary for mounting protective T helper type 2 (TH2) responses and are key regulators of gut homeostasis and mucosal immunity.