Publications by authors named "D Dahan"
The gut microbiome modulates immune and metabolic health. Human microbiome data are biased toward industrialized populations, limiting our understanding of non-industrialized microbiomes. Here, we performed ultra-deep metagenomic sequencing on 351 fecal samples from the Hadza hunter-gatherers of Tanzania and comparative populations in Nepal and California.
View Article and Find Full Text PDFCollaboration under uncertainty in unscripted conversations: The role of hedges.
J Exp Psychol Learn Mem Cogn
February 2023
The present study examined the role of hedges in a referential communication task. Pairs of participants received an identical set of cards, each card displaying a geometric configuration (a "tangram"). One participant, the director, instructed their partner, the matcher, to reproduce a series of predetermined tangram sequences using their own cards.
View Article and Find Full Text PDFArticle Synopsis
- The gut microbiome plays a crucial role in regulating immune and metabolic health, but research has mostly focused on industrialized populations, limiting our understanding of diverse non-industrialized microbiomes like that of the Hadza in Tanzania.
- Through ultra-deep sequencing and strain cultivation of 351 fecal samples, researchers identified nearly 95,000 genomes, with 43% being unique and not found in existing microbiome databases.
- The study highlights significant differences in the Hadza gut microbiome compared to industrialized populations, including variations in growth rates, genetic signatures, and the disappearance of certain gut-resident species linked to lifestyle changes in industrialized societies.
Introduction: Evidence related to the national burden of Sickle Cell Disease (SCD) in Gulf Cooperation Council (GCC) largely fragmented. Thus, the aim of this study is to systemically review studies from GCC countries to assess the epidemiological profile of SCD.
Areas Covered: We searched combinations of key terms in MEDLINE/PubMed, CINAHL, and EMBASE.
Purpose: The purpose of this study was to compare the outcomes of Descemet stripping automated endothelial keratoplasty (DSAEK) and penetrating keratoplasty (PKP) in patients with congenital hereditary endothelial dystrophy (CHED).
Methods: This was a retrospective, comparative study of all the patients with a histopathological diagnosis of CHED who underwent PKP or DSAEK between January 1, 1990, and December 31, 2016. All the cases were included except those patients who had clear grafts but did not complete 2 years of postoperative follow-up.