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Why do some long Covid patients continue to have difficulty exercising?

Research reveals that chronic heart rate failure during exercise is a common reason for long-term exercise intolerance in Long COVID patients. The study also found a correlation between early post-COVID inflammation biomarkers and reduced exercise capacity, suggesting potential therapeutic targets.

SourceUniversity of California San Francisco Medical Center·JournalThe Journal of Infectious Diseases·TypeExperimental study·DateMay 24, 2023

Brain signatures for chronic pain identified in a small group of individuals

Researchers have recorded pain-related data from inside the brains of individuals with chronic pain disorders, identifying an area associated with chronic pain and objective biomarkers. The findings, published in Nature Neuroscience, represent a step towards developing novel methods for tracking and treating chronic pain.

USC research identifies biomarker that may predict treatment response to chemoimmunotherapy

Researchers at USC Norris Comprehensive Cancer Center have identified a biomarker, CX3CR1, that can predict which patients with non-small cell lung cancer will respond well to chemoimmunotherapy. Elevated levels of the biomarker in T-cells after six to nine weeks of treatment indicate long-term benefits from the combination therapy.

SourceKeck School of Medicine of USC·JournalCancer Research Communications·TypeObservational study·DateMay 11, 2023

It’s cool to drool: Forsyth’s application of CRISPR-based rapid detection technology has potential to transform oral health

Scientists from Forsyth Institute develop CRISPR-based diagnostic tool that can detect specific oral pathogens with high sensitivity and specificity. The test can be performed in a dental office without technical expertise, providing comprehensive information on oral health and systemic diseases like diabetes, heart disease, and cancer.

SourceForsyth Institute·JournalJournal of Oral Microbiology·TypeExperimental study·DateMay 11, 2023

Chinese Medical Journal review highlights the health hazards of air pollution

A Chinese Medical Journal review highlights the health hazards of air pollution, particularly from fine particulate matter (PM2.5), which is associated with increased risks of cardiovascular disease, hospitalization, and respiratory mortality. The study suggests that reducing PM2.5 levels through government interventions and individual...

SourceCactus Communications·JournalChinese Medical Journal·TypeLiterature review·DateMay 8, 2023

Novel biomarker score could help measure adherence to Mediterranean diet

Researchers developed a novel biomarker-based indicator of the Mediterranean diet, which incorporates levels of fatty acids and carotenoids in blood. The study found that those with higher scores had lower risk of developing type 2 diabetes, suggesting a stronger link than self-reported diet adherence.

SourcePLOS·JournalPLOS Medicine·TypeObservational study·DateApr 27, 2023

Biomarker pattern found in kids with COVID 19-linked inflammatory syndrome

A study funded by the NIH found that children with multisystem inflammatory syndrome (MIS-C) have unique biochemical indicators of cell injury and death. The researchers developed a method to distinguish MIS-C from other conditions, which could lead to improved diagnosis and treatment for these patients.

Heart injury biomarker may help COVID-19 patients avoid hospitalization, new study shows

A new study published in PLOS ONE found that a heart injury biomarker, cardiac troponin, can identify low-risk COVID-19 patients who have normal troponin levels, potentially helping doctors send them home safely. The study suggests that elevated troponin levels may not accurately predict individual patient risk of death.

SourceUniversity of St. Andrews·JournalPLOS ONE·TypeData/statistical analysis·DateApr 21, 2023

Researchers identify unique biomarker patterns identifying MIS-C and severe COVID in children

Researchers have identified specific biomarker patterns in blood samples that are unique to severe COVID-19 infection and Multisystem Inflammatory Syndrome in Children (MIS-C) in children. These findings may lead to the development of diagnostic tests to predict severe disease and distinguish MIS-C from other conditions.

SourceChildren's National Hospital·JournalCell Reports Medicine·DateApr 21, 2023

Water arsenic including in public water is linked to higher urinary arsenic totals among the U.S. population

A new study by Columbia University Mailman School of Public Health finds that water arsenic levels are associated with higher urinary arsenic among the U.S. population, especially in public water supplies in the West and South regions. The researchers found that private well users and those in public water systems have higher urinary a...

Antibody alternatives for biosensing

Researchers developed an electronic biosensor using DNA aptamers to detect biomarkers in whole blood samples. The biosensor successfully detected clinically relevant levels of a marker protein for cardiovascular disease without further sample preparation.

SourceWiley·JournalAngewandte Chemie International Edition·TypeExperimental study·DateApr 18, 2023

The Lancet Neurology: Identifying ‘hallmark’ Parkinson’s disease protein build-up could aid early detection and pave way for improved diagnosis and treatment

Researchers identified a technique to detect abnormal protein deposits linked to Parkinson's disease, confirming its accuracy for early detection and characterisation. The α-synuclein seed amplification assay (αSyn-SAA) can identify people with Parkinson's disease and at-risk individuals prior to diagnosis.

SourceThe Lancet·JournalThe Lancet Neurology·TypeObservational study·DateApr 12, 2023

Prior treatments influence immunotherapy response in advanced melanoma

A study published in Cancer Cell found that prior treatments, such as CTLA-4 blockade, modify the response to anti-PD-1 checkpoint blockade therapy. The research analyzed data from over 500 patients and identified key factors associated with treatment response. This finding may help scientists create more precise future treatments.

SourceUniversity of California - Los Angeles Health Sciences·JournalCancer Cell·TypeExperimental study·DateApr 10, 2023

Blood-based biomarkers accurately predict neuroendocrine tumor response to radiopharmaceutical therapy

A blood draw can provide valuable information on the effectiveness of peptide receptor radionuclide therapy for neuroendocrine cancer patients. Blood-based biomarkers PPQ and NETest were found to predict PRRT response with 96% and 90% accuracy, respectively. The study opens possibilities for tailoring treatment to individual patients.

SourceSociety of Nuclear Medicine and Molecular Imaging·JournalJournal of Nuclear Medicine·DateApr 6, 2023

Genome-wide CRISPR screens identify PARP inhibitor sensitivity and resistance in prostate cancer

A recent study identified novel genes that influence PARP inhibitor response in prostate cancer, including MMS22L and RNASEH2B. The research found that loss of CHEK2, a previously approved biomarker, confers resistance to PARP inhibition, highlighting the need for comprehensive genomic analysis to improve treatment decisions.

SourceBrigham and Women's Hospital·JournalNature Communications·TypeExperimental study·DateApr 4, 2023

Status epilepticus: New inflammatory markers to improve patient care

A new study identifies several cytokine markers associated with poor prognosis in New-Onset Refractory Status Epilepticus (NORSE) patients. The researchers found that the concentration of these inflammatory proteins was higher in NORSE patients than controls, and their increase was correlated with short-term and long-term neurological ...

SourceInstitut du Cerveau (Paris Brain Institute)·JournalAnnals of Neurology·TypeRandomized controlled/clinical trial·DateMar 31, 2023

Seer researchers find undiscovered links between lung cancer and multiple distinct protein variants via deep, unbiased proteomics analysis

Seer researchers identified four structurally distinct protein isoforms that were differentially expressed in non-small cell lung cancer patients. These findings suggest that these protein isoforms may play a role in NSCLC disease pathogenesis, potentially leading to the development of new diagnostic markers or therapeutic targets.

SourceConsort Partners·JournalPLOS ONE·TypeExperimental study·DateMar 29, 2023