Dr. Umar

This study shows that specific intratumoral microbiome patterns shape immunity and prognosis in ovarian cancer, identifying microbe–immune interactions and prognostic microbial signatures.

Study using pyrosequencing showed distinct autism-associated fecal microflora, marked by higher diversity, elevated Bacteroidetes and Desulfovibrio, and reduced beneficial genera, suggesting microbiome-linked mechanisms in ASD.

Functional gastrointestinal disorders are symptom-based gut–brain interaction syndromes with no structural lesion, involving motility, visceral sensitivity, immune activation, dysbiosis, and central processing, diagnosed using Rome IV criteria.

This study identified reduced microbial diversity and marked loss of Prevotella, Coprococcus, and Veillonellaceae in autistic children, revealing a distinct gut microbial profile linked to autistic symptoms rather than diet or GI severity.

This study shows that autism is associated with distinct bacterial and fungal gut microbiome signatures, including reduced Bacteroidetes, elevated Firmicutes, and increased Candida, highlighting microbial contributions to ASD-related gastrointestinal symptoms.

Young children with ASD showed clear microbiome alterations marked by reduced B. longum, elevated F. prausnitzii, increased butyrate-related functions, and shifts in Bacteroidetes and Proteobacteria, suggesting disrupted microbial maturation.

This study characterizes gut microbial dysbiosis in Indian children with autism, identifying Lactobacillus as a cross-population microbial signature and highlighting reduced SCFA-producers linked to neuroimmune pathways.

This study analyzes gut microbiota in children with ASD, identifying distinct microbial, functional, and disease-association patterns that highlight potential mechanisms linking microbial imbalance to ASD pathophysiology.

This study identifies reduced diversity and specific microbial shifts—including lower Acidaminococcaceae and butyrate-producing genera—in Chinese children with ASD, highlighting microbiome disruptions with potential relevance to gut–brain interactions.

This study characterizes ASD fecal microbiota changes in children with and without mental regression, identifying distinct microbial signatures and diet-linked patterns that help clarify microbiome roles in ASD heterogeneity.

What was studied? This study examined changes in gut microbiota in children with autism spectrum disorder (ASD), focusing on how microbial diversity and specific bacterial signatures differ from those in healthy controls. The research evaluated 16S rRNA V4-region sequencing of stool samples to identify microbiome patterns associated with ASD and explored microbial biomarkers that can […]

The study examines gut microbiota in children with ASD, identifying major taxonomic and metabolic alterations involving BCAA producers, SCFA pathways, and mucosal health–related microbes, highlighting significant implications for ASD mechanisms and potential microbiome-based therapies.

This study links altered gut microbial profile ASD signatures to disrupted neurotransmitter-related metabolism, highlighting depleted Prevotella/Bacteroides species, delayed microbial maturation, and metabolite abnormalities in serotonin, dopamine, GABA, and glutamate pathways.

This study links gut microbiota imbalance in ASD with distinct taxonomic shifts and gastrointestinal severity, highlighting reduced Actinobacteria and altered SCFA-related genera as potential contributors to microbiota–gut–brain interactions.

This study characterizes ASD gut microbiome signatures, identifies microbial and cytokine disruptions, and evaluates diet and probiotics as targeted modulators of microbial–immune networks in Colombian children.

This study identified distinct gut-microbiome signatures in Chinese boys with ASD, including taxonomic shifts and predictive microbial markers, reinforcing microbiome involvement in ASD biology.

This meta-analysis reprocessed raw data from 13 ASD cohorts, showing that age, sex, and bowel function strongly confound ASD–microbiome findings and identifying strain-level signatures that more reliably distinguish ASD from neurotypical children.

This study identifies reduced microbial diversity, elevated propionate, and depleted Lactobacillus as defining features of constipated autism in children, linking microbial shifts and SCFA patterns to symptom severity.

This study identifies distinct gut microbiome signatures in Chinese children with ASD, including reduced diversity, altered key taxa, and disrupted metabolic pathways, highlighting their potential as biomarkers.

High-resolution microbial and genome-level signatures were used to build a fecal microbial marker panel for autism diagnosis, revealing distinct taxa, strong classifier performance, and correlations with ASD symptom severity.

This study uses large-scale metagenomics to define oral microbiome autism markers, revealing species-level signatures linked to ASD, cognitive traits, and behavioral factors such as mouth-breathing, with implications for biomarker development.

What was studied? Altered gut microbiota in Parkinson’s disease was examined using 16S rRNA sequencing to determine how microbial composition differs among patients, their healthy spouses, and unrelated healthy controls. The study analyzed 200 individuals and evaluated microbial diversity, specific bacterial taxa, and associations with clinical severity measured by Hoehn & Yahr staging and disease […]

What was studied? This original study investigated the gut microbiome in Australian Parkinson’s disease and how microbial alterations in people with Parkinson’s disease (PwP) may influence functional metabolic pathways relevant to neurodegeneration. Using 16S rRNA sequencing of the V3–V4 regions, the researchers compared microbial composition, alpha and beta diversity, and predicted KEGG metabolic pathways between […]

This study identifies distinct dysbiosis in the colonic microbiota in Parkinson’s disease, marked by reduced butyrate-producing bacteria and increased proinflammatory taxa, suggesting microbial contributions to intestinal inflammation and alpha-synuclein pathology.