gene expression

An experiment with mice found that an iron deficient diet before and during pregnancy produced lasting changes in the offspring that were not reversed by an adequate diet afterwards. The changes included altered levels of iron and other divalent metals in the brain, along with altered gene expression, suggesting prenatal nutrition can have permanent effects on development.

Researchers have developed a microgravity simulator that demonstrates how gravity influences the human genome and cellular biology. By replicating weightless conditions on Earth, the device shows measurable changes in gene expression and cell behaviour when gravity is removed. The findings could inform astronaut health research, space medicine, and our understanding of how fundamental gravity is to human biology.

A new study described in Phys.org presents a method for identifying genes that may share roles across different species by analysing the 'shape' of gene expression. The approach could help scientists compare how genes function in organisms that are distantly related, shedding light on conserved biological processes and improving understanding of gene function beyond simple sequence comparisons.

A discussion of epigenetics and inherited disease risk is resonating: standing at a family funeral, people confront the pattern of a grandfather's illness repeating in a father's diagnosis. The conversation centres on how gene expression can be switched by environment and lifestyle, and whether knowing a family history of disease changes what relatives can do about their own risk.

A new review suggests that m6A RNA modifications, chemical tags that regulate gene expression, may influence chronic wound healing differently at each phase of the repair process. The authors argue these tags could help explain why some wounds fail to heal and point to potential targets for future therapies. Researchers say the findings are early but highlight a growing interest in RNA-based approaches to treating persistent wounds.

Researchers have developed a novel method for retracing RNA's steps, offering a new way to follow RNA molecules and understand how they move and change inside cells. The approach, highlighted by BioTechniques, could help scientists study gene expression and cellular processes in greater detail. The technical details and research team behind the method remain unclear from available information.

A new research report presents transcriptome datasets for four freshwater bacterial species, making the gene expression data available to the scientific community. Such datasets allow researchers to study how freshwater bacteria respond to environmental conditions and can support wider work in microbial ecology, water quality and bioengineering. The publication is of interest mainly to microbiologists and bioinformatics researchers working with freshwater microbial communities.

Researchers report that oxidative shock changes how white rot fungus regulates its genes as it grows on wood, a finding with implications for understanding how the fungus breaks down lignin and biomass. The study suggests oxidative stress triggers a shift in expression of genes involved in wood decay pathways.

Researchers report that a protein involved in controlling how mRNA is decoded can itself be regulated, a newly described layer of control over protein synthesis. Because errors in mRNA decoding are linked to uncontrolled cell growth, the finding could deepen understanding of how cancers develop and point to future research directions in molecular biology.

A research news release reports new insights into the 'shape' of gene expression, describing how gene activity is organised within cells. The work suggests that gene expression patterns may be structured rather than random, offering biologists a fresh way to understand how genes are switched on and off and how that process relates to health and disease.

A new report says skin pigmentation is influenced not only by genetics but also by environment, lifestyle and stress through epigenetic changes, meaning external factors can alter how pigmentation genes are expressed without changing DNA itself. The findings are drawing attention for what they suggest about how daily living conditions affect skin biology over time.

New research suggests that measuring adropin gene expression could identify diabetes risk before the disease develops. Adropin is a peptide linked to energy metabolism and insulin sensitivity, and altered expression levels may serve as an early biomarker for type 2 diabetes. The finding could support earlier screening and preventive care, though the study's details and clinical validation remain limited.

Researchers have confirmed the existence of two novel alternatively spliced human RAB8B transcripts, according to a newly published study. The finding refines understanding of how the RAB8B gene, involved in protein trafficking within cells, is expressed in humans. Alternative splicing can produce different proteins from a single gene, so the confirmation may matter for future research into cell biology and disease mechanisms.

Researchers are using metatranscriptomics to map which genes are actively expressed by microbes in traditional fermented foods, going beyond simply cataloguing species to see what the microbial communities are actually doing. The approach could shed light on how flavour, texture and safety emerge in ferments like sauerkraut, kimchi and artisanal cheeses, and may help preserve and improve traditional fermentation practices.

A study using hamster blood has uncovered a hidden flaw in how gene expression is analysed during infection and vaccination, according to a report by Bioengineer.org. The finding suggests that common analytical methods may produce misleading results in immunology research. Details of the study's methods, findings and the researchers involved have not yet been widely reported.