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Western diet weakens the gut’s nervous system through iron-dependent damage

A JCI study found that exposure to a Western diet in mice and to palmitic acid in murine and ex vivo human enteric nervous system models triggered ferroptosis, characterized by iron loading, lipid peroxidation, mitochondrial stress, and enteric neuronal loss. Boosting Nrf2 signaling protected enteric neurons and prevented Western diet-induced delayed colonic transit in mice, pointing to a potential pathway linking dietary fat exposure to gut motility dysfunction.

10 Jun 2026

Why Andes hantavirus is not the next COVID-19

Research highlights fundamental differences between Andes hantavirus and SARS-CoV-2, emphasizing distinct transmission routes and public health implications.

10 Jun 2026

New blood test tracks real time gene expression inside living brain tissue

Cell function is determined by how DNA is expressed into proteins. That process includes two main steps - transcription, when messenger RNA (mRNA) makes copies of active genes, and translation, when mRNA guides protein assembly.

2 Jun 2026

Hypoxia-gated AAV enables targeted treatment for advanced NSCLC

Adeno‑associated virus (AAV) vectors offer safety and durable expression but lack tumor specificity. This hypothesis proposes an NSCLC‑directed, hypoxia‑responsive AAV platform that integrates MGS4 peptide‑guided capsid targeting with dual hypoxia‑responsive element (HRE)‑gated promoters driving Q‑CXCL9‑Fc (chemokine) and miR‑30‑based shRNA against mesothelin (MSLN).

1 Jun 2026

How a tiny H5N1 dose triggers massive virus shedding in cow milk

Experimental infection studies in lactating Holstein cows showed that H5N1 B3.13 can infect the bovine mammary gland at doses as low as 10 TCID50, producing extremely high viral loads in milk. However, the virus did not transmit to sentinel cows through repeated exposure to contaminated milking equipment or through close contact under high-biocontainment conditions, suggesting that real-world dairy-farm spread depends on additional cofactors.

25 May 2026

What medicine-exposed rats reveal about the next urban zoonotic threat

Researchers found that more than half of urban rats sampled from low-income communities in Salvador, Brazil, carried active pharmaceutical ingredients in their brain tissue. These pollutants were associated with altered zoonotic infection patterns, including lower Leptospira infection probability in rats carrying azithromycin and higher Capillaria infection probability in rats carrying citalopram.

22 May 2026

Ensitrelvir cuts household COVID-19 risk when given after exposure

Ensitrelvir, an oral SARS-CoV-2 3C-like protease inhibitor, reduced symptomatic RT-PCR-confirmed COVID-19 among household contacts when given within 72 hours after symptom onset in the infected index patient. In the phase 3 SCORPIO-PEP trial, COVID-19 occurred in 2.9% of ensitrelvir recipients versus 9.0% of placebo recipients, with similar overall adverse-event rates.

20 May 2026

Adjuvanted and high-dose flu vaccines protect older adults equally well

In a large study of 429,595 adults aged 65 years or older, adjuvanted and high-dose influenza vaccines showed no significant difference in protection against PCR-confirmed influenza. The findings support current recommendations that both enhanced vaccines are reasonable options for older adults, while second-season results may further refine the evidence.

20 May 2026

MIDAS platform accelerates protein engineering through rapid PCR-based screening

Proteins are critical to life – and to industry. There are countless proteins that could be engineered to treat and even cure serious diseases and cellular dysfunctions.

19 May 2026

DNA-guided CRISPR system targets RNA and expands Cas12 beyond gene editing

Researchers developed ΨDNA, a DNA-based CRISPR guide that allows Cas12 enzymes to target RNA with high specificity while retaining compatibility with DNA-editing workflows. The platform detected HCV RNA in clinical samples and enabled programmable RNA knockdown, multiplex targeting, and RNA modification in human cells.

18 May 2026

Aged immune cells may drive memory decline by releasing a brain-aging protein

A preclinical mouse study in Immunity suggests that aged circulating CD8+ T cells can disrupt hippocampal function and impair learning and memory. The findings point to granzyme K, a secreted factor linked to age-associated CD8+ T cells, as a potential target for restoring aspects of cognition in aging.

17 May 2026

New mechanism to enhance precision in cancer drug development

Researchers at The University of Texas Medical Branch (UTMB) have identified how a key enzyme called ATR protects DNA from breaking when cells copy damaged genetic material, a discovery that could affect how certain cancer drugs are developed.

15 May 2026

How Andes virus super-spreaders reveal the risk behind the MV Hondius hantavirus cluster

A 2020 NEJM study of the 2018 to 2019 Epuyén outbreak showed that Andes virus spread from one zoonotic introduction into four generations of human infection, causing 34 cases and 11 deaths. The findings are newly relevant after WHO reported an ANDV cluster linked to the MV Hondius cruise ship, where close indoor exposure may have enabled onboard human-to-human transmission.

14 May 2026

Non-invasive swab test offers fast, accurate tuberculosis detection worldwide

A portable molecular test, MiniDock MTB, detected pulmonary tuberculosis rapidly and accurately across seven high-burden countries, using sputum or tongue swab samples. The study suggests the low-cost, battery-operated platform could expand near-point-of-care TB diagnosis in low-resource settings, although real-world implementation and drug-resistance integration still need evaluation.

10 May 2026

Do repeated football head hits disrupt the gut microbiome?

A small exploratory study of collegiate football players found that non-concussive head impacts are correlationally linked to acute and season-long shifts in gut microbiome composition, with changes most pronounced 48–72 hours after significant impacts. However, most associations weakened after correction for multiple testing, and the authors stress the findings are preliminary and hypothesis-generating.

10 May 2026

Infectious H5N1 virus detected in dairy farm air

Findings from California dairy farms show H5N1 in air and wastewater, indicating overlooked transmission routes and implications for outbreak management.

8 May 2026

Chromosome abnormalities may help cancer cells resist treatment and spread

A new study led by NYU Langone Health researchers found that cancer cells are better able to resist treatments when they have an abnormal number of chromosomes, which are DNA strands wound up in bundles that control which genetic instructions are followed in each cell type.

7 May 2026

Hantavirus scare on cruise ship prompts WHO response

Hantavirus infections among cruise ship passengers have sparked a global health response, highlighting the need for effective outbreak management strategies.

7 May 2026

Cryo-electron microscopy offers an unprecedented view of gene transcription

The enzyme RNA polymerase (RNAP) carries out transcription, copying DNA into RNA. It's the first step in gene expression, and a process fundamental to all life.

30 Apr 2026

Why H2N2 flu is back on the pandemic preparedness radar

A historical review in Vaccine warns that global H2N2 immunity has sharply declined since the 1957 Asian influenza pandemic, leaving most people without H2-specific protection if the virus re-emerges. The authors highlight animal reservoirs, waning birth-cohort immunity, and modern H2 vaccine platforms as key priorities for pandemic preparedness.

28 Apr 2026