--- title: 'Research Daily Summary: What Happened on November 5, 2026' headline: Heart cells from one woman showed a distinct response to a hormone description: A small McGill pilot, a microbiome study of 6,803 Japanese adults and an antibody-based approach to GPCRs lead the research brief. url: https://thebench.bio/news/research/2026-11-05 topic: research date: '2026-11-05' covers: - '2026-11-05' date_published: '2026-11-05T12:10:28Z' date_modified: '2026-11-05T12:10:28Z' tags: - Industry sources: 3 publisher: TheBench.Bio --- # Research Daily Summary: What Happened on November 5, 2026 **Heart cells from one woman showed a distinct response to a hormone** A small McGill pilot, a microbiome study of 6,803 Japanese adults and an antibody-based approach to GPCRs lead the research brief. ## Today in brief In a four-person pilot, heart cells from one woman with dilated cardiomyopathy responded to a hormone in a way not seen in cells from one male patient or two healthy volunteers. [1] McGill researchers have grown cells from samples collected from 40 people for an expanded study. [1] Researchers linked two contrasting microbiome patterns with lifestyle factors and 15 chronic diseases in 6,803 Japanese adults. [2] A separate team described a bifunctional antibody-based platform that can antagonize a broad range of G protein-coupled receptors, or GPCRs. [3] ## Heart cells from one woman showed a distinct hormone response McGill researchers combined patient-derived heart muscle cells with high-resolution microscopy to study treatment responses in dilated cardiomyopathy. [1] In a pilot involving two people with the condition and two healthy volunteers, cells from the female participant responded to a hormone researchers had not expected to improve heart function. [1] The response did not appear in cells from the male participant or either healthy volunteer. [1] The result is preliminary, based on cells from just four people. [1] Terry Hébert said it points to a possible treatment target and may help explain understudied differences in heart disease between women and men. [1] Researchers have grown heart cells from samples collected from 40 people as they expand the study. [1] ## Microbiome patterns tracked with lifestyle and chronic disease Researchers analyzed fecal microbial DNA from 6,803 Japanese adults, examining 28 lifestyle factors and links with 15 chronic conditions. [2] Plant-focused diets, fermented foods, coffee and physical activity were mainly linked to health-oriented microbiome patterns. [2] Refined carbohydrates, smoking and prolonged sitting were linked to disease-oriented patterns. [2] The health-associated pattern involved microbes processing dietary components. The disease-associated pattern included bacteria originating in the mouth and disease-linked microbes. [2] Researchers tested microbiome-based disease scores in 13 external cohorts and said the scores distinguished individual diseases. [2] The findings describe associations and mediation patterns, not proof that the lifestyle factors or microbes cause or prevent disease. [2] ## Antibody-based platform targets GPCRs for degradation Researchers reported a bifunctional antibody-based degrader platform that can antagonize a broad range of GPCR targets. [3] GPCRs are a large receptor family, and some subsets remain underexplored as drug targets. [3] ## The day in numbers - **40 people**: Samples collected for the expanded McGill heart-cell study. [1] - **6,803 adults**: Japanese participants whose fecal microbiome data were analyzed. [2] - **13 cohorts**: External cohorts used to assess microbiome-based disease scores. [2] ## Also published - [Genomic characterization of the 2026 Bundibugyo virus disease outbreak in the Democratic Republic of the Congo](), Virological - [Back from the dead: ‘zombie’ bacteria produce DNA from beyond the grave](), BioTechniques - [Survey highlights mental health burden among rare disease patients and families](), Pharmafile - [Autonomous Labs Create New Instrument Niches to Fill](), Omics! Omics! - [Innovation Radar: New clues to targeting Alzheimer’s microglia](), BioCentury ## Sources 1. [New ‘heart-in-a-dish’ model brings personalized cardiac medicine closer](), BioTechniques, 2026-11-05 2. [Opposing microbiome-mediated axes link modifiable lifestyles to health and chronic diseases](), Nature Medicine, 2026-11-05 3. [Degraders take on GPCRs](), Nature Reviews Drug Discovery, 2026-11-05 --- TheBench.Bio wrote this from the reporting cited above, with a language model drafting and editing. [1]: [2]: [3]: