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Keck School of Medicine of USC


USC Stem Cell mouse study sheds light on the secret to maintaining a youthful immune system

A USC Stem Cell mouse study identifies a small subset of blood stem cells as the primary driver of immune aging. The researchers found that this subset overproduces innate immune cells, leading to an age-associated imbalance and increased disease risk. By targeting this subset, the study suggests a potential therapy to delay immune agi...

SourceKeck School of Medicine of USC·JournalCellular and Molecular Immunology·TypeExperimental study·DateOct 23, 2024

USC study finds link between PFAS, kidney function and gut health

Researchers at USC found a link between per- and polyfluoroalkyl substances (PFAS) and kidney damage, which may be tied to dysregulation of the gut microbiome. The study, published in Science of the Total Environment, suggests that changes in gut bacteria and related metabolites can explain up to 50% of decreased kidney function.

SourceKeck School of Medicine of USC·JournalScience of The Total Environment·TypeExperimental study·DateOct 17, 2024

USC’s Rong Lu and Caltech’s Michael B. Elowitz win the NIH Director’s Transformative Research Award for their new approach to study blood and immune cell production in bone marrow

Researchers from USC and Caltech develop a new method to study hematopoietic stem and progenitor cells within the bone marrow without extracting them. This breakthrough could inform efforts to optimize bone marrow transplantation and provide insights into various health conditions, including cancer and heart disease.

‘Forever chemicals’ linked to poor sleep among young adults in first-of-its-kind study

A study published in Environmental Advances found a significant association between four types of PFAS and poor sleep in young adults. The researchers identified genes involved in the body's natural defenses and a hormone that regulates sleep, shedding light on the underlying mechanisms of PFAS' impact on sleep.

SourceKeck School of Medicine of USC·JournalEnvironmental Advances·TypeMeta-analysis·DateOct 3, 2024

USC-Caltech team tests new noninvasive tool to predict stroke risk

A team of researchers from USC and Caltech developed a new noninvasive tool to measure brain blood pressure, assessing stroke risk through changes in blood flow and volume during a stress test. The affordable, portable device has the potential to transform stroke care by providing more reliable data than existing questionnaires.

SourceKeck School of Medicine of USC·JournalBiomedical Optics Express·TypeExperimental study·DateSep 30, 2024

First genome-wide comparison of vapers and smokers finds similar DNA changes linked to disease risk

Researchers compared epigenetic changes across the genome in young adults who vaped, smoked or did not use nicotine products, finding a tumor-suppressor gene among the key findings. The study found substantial overlap in DNA methylation patterns between people who vaped versus those who smoked.

SourceKeck School of Medicine of USC·JournalAmerican Journal of Respiratory Cell and Molecular Biology·TypeExperimental study·DateSep 25, 2024

Exposure to air pollution during pregnancy increases postpartum depression risk for at least three years, study finds

Researchers found that women exposed to higher levels of nitrogen dioxide and inhalable particulate matter during the second trimester face an almost fourfold increased risk of postpartum depression. The study also discovered a sustained effect of air pollution on symptoms of depression for up to three years after birth.

SourceKeck School of Medicine of USC·JournalScience of The Total Environment·TypeData/statistical analysis·DateSep 11, 2024

New study shows cells get involved in unhealthy relationships after acute kidney injury (AKI) in mice

Researchers have identified key cellular interactions and microenvironments that contribute to the development of chronic kidney disease (CKD) after acute kidney injury (AKI) in mice. The study, published in Nature Communications, provides new insights into how damaged cells interact within disease-promoting microenvironments.

SourceKeck School of Medicine of USC·JournalNature Communications·TypeExperimental study·DateSep 5, 2024

Air pollution exposure during childhood linked directly to adult bronchitis symptoms in new research

A new study reveals a direct connection between childhood air pollution exposure and adult bronchitis symptoms, suggesting that subtle effects on the respiratory system can persist into adulthood. The research, based on the USC Children's Health Study, found that even when adjusting for asthma or bronchitis symptoms in childhood, expos...

SourceKeck School of Medicine of USC·JournalAmerican Journal of Respiratory and Critical Care Medicine·TypeMeta-analysis·DateJun 28, 2024

USC researchers pioneer new brain imaging technique through clear “window” in patient’s skull

In a proof-of-concept study, USC researchers used functional ultrasound imaging to collect high-resolution brain imaging data through a transparent skull implant in a patient. The results suggest that this approach could open new avenues for patient monitoring and clinical research.

SourceKeck School of Medicine of USC·JournalScience Translational Medicine·TypeExperimental study·DateMay 29, 2024

Fluoride exposure during pregnancy linked to increased risk of childhood neurobehavioral problems, study finds

A new US-based study examines the link between prenatal fluoride and childhood social, emotional and behavioral functioning. Higher fluoride exposure levels during pregnancy were associated with a higher chance of children showing neurobehavioral problems, including emotional reactivity, anxiety and somatic complaints.

SourceKeck School of Medicine of USC·JournalJAMA Network Open·TypeObservational study·DateMay 20, 2024

USC study links lack of diversity in Alzheimer’s disease clinical trials to differences in amyloid levels

Researchers found that individuals from certain racial and ethnic groups are less likely to be eligible for Alzheimer's disease clinical trials due to lower amyloid levels at early stages of the disease. Amyloid buildup in the brain varies across different populations, contributing to underrepresentation in clinical trials.

SourceKeck School of Medicine of USC·JournalAlzheimer s & Dementia·TypeRandomized controlled/clinical trial·DateApr 17, 2024

Filling in genomic blanks for disease studies works better for some groups than others

A new study from the Keck School of Medicine of USC found that genome-wide association studies' imputation technique works better for European, African American, and Latino groups than others. The researchers evaluated over 100 global populations, finding that imputation is less reliable for those farther away from Europe.

SourceKeck School of Medicine of USC·JournalAmerican Journal of Human Genetics·TypeData/statistical analysis·DateApr 10, 2024

Organoids reveal how to protect the brain against dementia and ALS following traumatic injury, according to USC Stem Cell study

A traumatic brain injury quadruples the risk of developing dementia and neurodegenerative diseases like ALS. USC scientists used lab-grown human brain structures called organoids to study TBI's effects. They identified a gene, KCNJ2, that helps protect nerve cells against injury.

SourceKeck School of Medicine of USC·JournalCell Stem Cell·TypeExperimental study·DateApr 4, 2024

Large-scale study explores genetic link between colorectal cancer and meat intake

Researchers linked red/processed meat consumption to increased colorectal cancer risk, highlighting two genetic markers (HAS2 and SMAD7) that alter cancer risk levels based on meat intake. The study analyzed data from nearly 70,000 people and found a 30-40% increased risk for those with high red or processed meat intake.

SourceKeck School of Medicine of USC·JournalCancer Epidemiology Biomarkers & Prevention·TypeMeta-analysis·DateMar 14, 2024

Large-scale study explores link between smoking and DNA changes across six racial and ethnic groups

A large-scale study has found a significant link between smoking and DNA methylation, with two new epigenetic markers identified that differ by race or ethnicity. The research could lead to better ways to predict smoking-related disease risk and improve early detection and treatment.

SourceKeck School of Medicine of USC·JournalAmerican Journal of Human Genetics·TypeObservational study·DateMar 1, 2024

USC researchers uncover biological circuit that protects plants from extreme conditions

Plants use their circadian clocks to regulate responses to changes in water and salinity levels, offering a new avenue for creating drought-resistant crops. The discovery of the ABF3 feedback loop reveals a delicate balance between boosting stress tolerance and maximizing growth and yield.

SourceKeck School of Medicine of USC·JournalProceedings of the National Academy of Sciences·TypeExperimental study·DateFeb 5, 2024

USC Stem Cell study shows how gene activity modulates the amount of immune cell production in mice

Researchers at USC Stem Cell lab discovered nearly 40 genes associated with immune cell production, including those related to diseases like myelodysplastic syndrome. The study found that gene activity was linked to specific levels of immune cell production, offering insights for improving bone marrow transplantation strategies.

SourceKeck School of Medicine of USC·JournalScience Advances·TypeExperimental study·DateJan 26, 2024

Social media posts that promote tobacco are increasing, AI detection technology finds

A study led by Keck School of Medicine of USC used AI detection technology to analyze influencer content on TikTok between 2019 and 2022, finding an increase in posts that promote e-cigarettes. The prevalence of pod devices, e-juice flavor names, and nicotine warning labels increased significantly over time.

SourceKeck School of Medicine of USC·JournalNicotine & Tobacco Research·TypeContent analysis·DateNov 29, 2023