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Pilot study finds metabolic alterations related to sexual and physical abuse

A pilot study at the University of Eastern Finland found metabolites related to oxidative stress and transsulfuration to be associated with a history of sexual or physical abuse in depressed adolescent outpatients. The study's findings suggest that further research into the biological mechanisms underlying trauma is needed.

SourceUniversity of Eastern Finland·JournalEuropean Journal of Psychotraumatology·DateApr 11, 2023

A common metabolite may help treat autoimmune diseases

Researchers at Hokkaido University discovered itaconate's modulatory effect on T helper and T regulatory cells, potentially leading to new treatments for autoimmune diseases. The study found that itaconate inhibits Th17 cell differentiation and promotes Treg cell development, reducing disease symptoms in mice models.

SourceHokkaido University·JournalNature Communications·TypeExperimental study·DateMar 14, 2023

Mass General Brigham researchers uncover metabolic secrets of anaerobes and identify new strategies to treat c. difficile infections

The study found that Clostridioides difficile uses fermentation to rapidly colonize the gut and identified critical pathways converged on a metabolic integration point to produce amino acid alanine, driving bacterial growth. The findings provide new targets for small molecule drugs to counter C. difficile colonization and infection.

SourceMass General Brigham·JournalNature Chemical Biology·TypeObservational study·DateMar 9, 2023

Research aims to expand understanding of link between chronic stress and heart disease, among other age-related conditions

A University of Massachusetts Amherst epidemiologist is leading a team to better understand the effects of chronic stress on future health risks. They will examine metabolites in blood samples from a large, racially diverse population to identify potential biomarkers for heart disease, diabetes and cognitive decline.

Metabolites better reflect consumption of the Mediterranean diet during pregnancy compared to self-reported dietary measures, study finds

Researchers found that metabolites associated with the Mediterranean diet may serve as an objective measure to assess adherence among pregnant individuals. The study identified several key metabolites linked to maternal physiology and outcomes, including gestational diabetes and chronic diseases.

SourceNational University of Singapore, Yong Loo Lin School of Medicine·JournalClinical Nutrition·TypeObservational study·DateFeb 9, 2023

Gene cluster reshuffling drives natural sunscreen evolution in lichens

Lichen-forming fungi have evolved unique gene clusters to produce orange 'sunscreen' pigments, allowing them to thrive in sunny environments. The discovery of a critical ABC transporter gene within the pigment gene cluster provides a potential hypothesis for toxicity avoidance in these organisms.

SourceSMBE Journals (Molecular Biology and Evolution and Genome Biology and Evolution)·JournalGenome Biology and Evolution·TypeExperimental study·DateFeb 9, 2023

Myalgic encephalomyelitis/chronic fatigue syndrome is associated with distinct changes in the microbiome and gut metabolites

Two studies reveal that ME/CFS is associated with reduced levels of butyrate-producing microbes and differences in gut metabolites. Researchers found distinct changes in the microbiome of patients with short-term and long-term ME/CFS, suggesting a potential link between gut dysbiosis and the disease's severity.

SourceCell Press·JournalCell Host & Microbe·TypeExperimental study·DateFeb 8, 2023

Donor hearts can be reprogrammed with medication for longer storage, improved transplant outcomes

A new study found that a medication previously used to treat seizures can reprogram donor hearts to boost the production of beneficial enzymes, increasing storage time and improving post-transplant function. This technology could lead to a paradigm shift in extending heart storage and reducing primary graft dysfunction.

SourceMichigan Medicine - University of Michigan·JournalScience Translational Medicine·TypeExperimental study·DateFeb 8, 2023

How habanero peppers respond to stress

Researchers found that metabolite changes were most evident in ripe fruit, with nitrogen deficiency increasing some compounds and phosphorus deficiency decreasing diversity. Salinity threshold above which metabolites change was identified, which could impact harvested pepper resistance to pathogens.

SourceAmerican Chemical Society·JournalACS Agricultural Science & Technology·DateJan 19, 2023

A plethora of plant molecules provides a ple"flora" of data

A searchable library of 1,600 chemically-diverse plant extracts has been established, providing valuable insights into plant metabolites' roles in drug development. The library shares both data and methods, making it an exceptional resource for advancing chemodiversity digitization.

SourceGigaScience·JournalGigaScience·TypeExperimental study·DateJan 17, 2023

Differences in gut microbiome linked to risk of death in COVID-19 patients with respiratory failure

A study found that patients with severe COVID-19 who suffered progressive lung failure had a different gut microbiome composition compared to those who recovered. The research identified key differences in bacteria and metabolites, including higher levels of Proteobacteria and lower levels of secondary bile acids in dying patients.

SourceUniversity of Chicago·JournalNature Communications·TypeExperimental study·DateJan 9, 2023

Blood-based metabolic signature outperforms standard method for predicting diet, disease risk

A new study found that a machine learning-based blood test can accurately predict an individual's entire diet over 19 food groups, outperforming traditional methods. The test, which uses molecular profiling, also identifies who is more likely to develop diabetes and cardiovascular disease based on each food group.

SourceMichigan Medicine - University of Michigan·JournalEuropean Heart Journal·TypeComputational simulation/modeling·DateDec 14, 2022

Three new biomarkers identified to detect consumption of emerging synthetic cannabinoid

A team of scientists has identified three new biomarkers for detecting the consumption of emerging synthetic cannabinoids like OXIZID. These biomarkers will facilitate work by drug enforcement agencies worldwide in monitoring OXIZID abuse, enabling more accurate identification of abusers and potentially preventing overdoses.

SourceNational University of Singapore·JournalClinical Chemistry·TypeExperimental study·DateNov 30, 2022

Grape consumption helps counter UV damage to skin

A recent human study published in Antioxidants found that consuming grapes protected against ultraviolet (UV) damage to the skin. The study showed increased resistance to sunburn and unique microbiomic and metabolomic profiles in subjects who consumed whole grape powder, suggesting a correlation between the gut and skin.

SourceCalifornia Table Grape Commission·JournalAntioxidants·TypeRandomized controlled/clinical trial·DateNov 30, 2022

New study provides a unique resource for understanding how environmental exposures in early life affect our health

Researchers have developed a unique resource for understanding the impact of early life environmental exposures on health. The study, which analyzed data from 1,301 mother-child pairs, identified associations between 92 in pregnancy and 116 in childhood with molecular profiles at different levels.

SourceBarcelona Institute for Global Health (ISGlobal)·JournalNature Communications·TypeObservational study·DateNov 21, 2022

UCalgary study points to potential new treatment for inflammatory bowel diseases

Researchers at UCalgary have discovered a potential new treatment for fibrosis, a condition that causes thickening of the gut wall and life-threatening blockage in people with Crohn's disease and ulcerative colitis. The study suggests that drugs targeting specific sensors may prevent inflammation-associated gut blockage.

SourceUniversity of Calgary·JournalCellular and Molecular Gastroenterology and Hepatology·TypeExperimental study·DateNov 7, 2022

NIH grant funds HIV research

Researchers at the University of Cincinnati are awarded a $3.5 million NIH grant to examine how alcohol use alone or in combination with fentanyl affects HIV medications, including PrEP medication. The study aims to determine metabolite signatures and pharmacological biomarkers of PrEP in HIV-negative populations.

Yellow pigment keeps social amoebae together

Researchers at Leibniz-HKI discovered a yellow natural substance that regulates the multicellular stage of the amoeba <em>D. discoideum</em>. The polyketide, dictyoden, prevents premature hatching from spores, maintaining the development cycle. The study provides insights into the complex transition from single- to multicellularity.

SourceLeibniz Institute for Natural Product Research and Infection Biology - Hans Knöll Institute -·JournalProceedings of the National Academy of Sciences·TypeExperimental study·DateOct 19, 2022

New insights into how serotonin regulates behavior

New research by Frank Schroeder's team reveals two parallel biosynthetic pathways for serotonin production in C. elegans, challenging the long-held assumption that serotonin is made and quickly broken down. The findings suggest new therapeutic targets for treating anxiety, depression, and eating disorders.

SourceBoyce Thompson Institute·JournalNature Chemical Biology·TypeExperimental study·DateOct 13, 2022

Drug discovery method identifies naturally occurring metabolite that converts ‘bad’ fat to ‘good’ fat

A team of scientists at Scripps Research and Calibr discovered a naturally occurring metabolite called myristoylglycine that can convert white fat cells into brown fat cells, potentially treating obesity and related diseases. The breakthrough uses a novel drug discovery method to identify endogenous metabolites with therapeutic potential.

SourceScripps Research Institute·JournalMetabolites·DateOct 13, 2022

Multiple health benefits of b-type procyanidin-rich foods like chocolate and apples consumed in right amounts

Researchers found that B-type procyanidins induce hormesis in hemodynamic and metabolic responses, with optimal doses triggering improved cognitive functions and stress resistance. The study suggests a link between B-type procyanidin intake and CNS neurotransmitter receptor activation.

SourceShibaura Institute of Technology·JournalFrontiers in Nutrition·TypeExperimental study·DateOct 5, 2022

Study links prenatal phthalate exposure to reduced childhood lung function

A study by the Barcelona Institute for Global Health found a strong association between prenatal phthalate exposure and reduced lung function in children. The researchers analyzed data from 641 mother-child pairs and discovered that gestational phthalate exposure was associated with decreases in forced vital capacity and forced expirat...

SourceBarcelona Institute for Global Health (ISGlobal)·JournalEnvironmental Pollution·TypeObservational study·DateOct 3, 2022

Disarming the body’s defenders

A study published in Science reveals that tumor cells with a specific mutation release a chemical metabolite that weakens nearby immune cells, rendering them less capable of killing cancer cells. The findings highlight the critical role of the tumor microenvironment in cancer growth and provide insights into developing targeted therapi...

SourceHarvard Medical School·JournalScience·DateSep 29, 2022

Strong link between gut bacteria and metabolites

A recent study published in Nature Communications has found a strong connection between the gut microbiome and certain blood metabolites. The research, led by Uppsala University, analyzed fecal and blood samples from over 8,500 participants in the SCAPIS study, identifying novel associations between gut bacteria and plasma metabolite s...

SourceUppsala University·JournalNature Communications·TypeObservational study·DateSep 23, 2022

Diet could play a role in cognitive function across diverse races and ethnicities

Researchers found that blood metabolites related to sugars were linked to older adults' global cognitive health, while a Mediterranean diet was associated with higher levels of beta-cryptoxanthin. This study expands on previous work and highlights the importance of diet in safeguarding cognitive function across different populations.

SourceBrigham and Women's Hospital·JournalAlzheimer s & Dementia·DateSep 16, 2022