A recent study published in the International Journal of Cancer found a link between arsenic exposure and suppressed expression of DNA repair genes. The researchers discovered that individuals with elevated arsenic levels had lower levels of certain genes involved in nucleotide excision repair, which helps protect against DNA damage.
SourceThe Geisel School of Medicine at Dartmouth·JournalInternational Journal of Cancer·DateApr 7, 2003
A recent study reveals that sperm in men older than 35 show more DNA damage, which could be passed on to offspring. The researchers found that older men have lower motility and more damaged DNA, with fewer apoptotic cells, indicating a decline in the ability of sperm to eliminate damaged cells.
Researchers at Michigan State University and the Cancer Research UK London Research Institute found a way for an enzyme to repair DNA using iron and oxygen, bypassing oxidation. This discovery offers possibilities for understanding biological functions and combating diseases such as cancer and aging.
SourceMichigan State University·JournalNature·DateSep 11, 2002
Biologists found that nematodes use a sophisticated mechanism to render transposons harmless, preventing them from making proteins and jumping through DNA.
SourceNetherlands Organization for Scientific Research·DateJun 24, 2002
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Researchers at the University of North Carolina at Chapel Hill have identified a protein called ATR that senses damaged DNA and triggers the body's natural repair system. This discovery is significant as it highlights a crucial step in maintaining genome stability and preventing mutations that can lead to cancer.
SourceUniversity of North Carolina at Chapel Hill·JournalProceedings of the National Academy of Sciences·DateMay 13, 2002
Research shows that alcohol consumption can increase cancer risk by impairing DNA repair processes, leading to genetic damage and mutations. Acetaldehyde, a metabolite of alcohol, is identified as the primary culprit in this process.
SourceAlcoholism: Clinical & Experimental Research·DateMar 14, 2002
Researchers identify Mus81, a resolvase enzyme in fission yeast, as a crucial component of genetic recombination. The discovery has potential implications for cancer therapy, as the enzyme plays a role in cell replication and DNA repair.
SourceScripps Research Institute·JournalCell·DateNov 9, 2001
Researchers describe how sodium ions control electron hole migration through DNA, potentially initiating damage to genetic coding. The study suggests that water molecules, sodium ions, and DNA backbone work together to regulate electrical charge transport.
SourceGeorgia Institute of Technology·JournalScience·DateOct 18, 2001
Apple AirPods Pro (2nd Generation, USB-C)
Apple AirPods Pro (2nd Generation, USB-C) provide clear calls and strong noise reduction for interviews, conferences, and noisy field environments.
University of Iowa researchers found that long-term treatment with verapamil can prevent heart muscle damage in mice without serious side effects. They also identified a specific biomarker, cardiac troponin I, to detect early diagnosis of cardiomyopathy in patients with muscular dystrophy.
SourceUniversity of Iowa·JournalJournal of Clinical Investigation·DateJan 11, 2001
Researchers at Brookhaven National Laboratory identified a DNA repair enzyme deficiency in the Norin 1 strain of rice, making it more susceptible to UV damage. The team suggests that breeding or introducing genes from non-UV-sensitive strains could improve the enzyme's ability to bind and fix damaged sites.
SourceDOE/Brookhaven National Laboratory·JournalThe Plant Cell·DateSep 7, 2000
Scientists have developed a new way to detect and quantify various types of radiation damage to DNA, including clusters of oxidized bases and abasic sites. The test could help assess radiation risks for astronauts, improve cancer therapy, and distinguish between normal living and low-level radiation-induced damage.
SourceDOE/Brookhaven National Laboratory·JournalBiochemistry·DateJul 10, 2000
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A recent study found three genes that may play a role in protecting the kidneys from diabetic damage. The genes were identified by examining the genetic structure of healthy and sick mice, and their discovery could lead to new therapeutic strategies for kidney disease. By understanding how these genes work, scientists hope to develop d...
Researchers at Thomas Jefferson University have discovered a new connection between the FHIT gene and hereditary colorectal cancer. The study suggests that the FHIT gene plays a crucial role in preventing carcinogen-caused tumors, and its loss may contribute to the development of HNPCC-like disease.
SourceThomas Jefferson University·JournalProceedings of the National Academy of Sciences·DateApr 24, 2000
Researchers have identified a crucial gene defect that hinders the ability of cells to repair DNA damage caused by oxidative stress. This deficiency may lead to diseases such as Cockayne's syndrome and increase the risk of cancer, heart disease, and rheumatoid arthritis.
SourceUniversity of North Carolina Health Care·JournalCell·DateApr 13, 2000
A new chemical probe has revealed the tiny movements of DNA's chemical base pairs, which last only a fraction of a second. This discovery may improve drug design and help doctors understand diseases caused by genetic mutations, such as cancer.
SourceOhio State University·JournalJournal of the American Chemical Society·DateJan 30, 2000
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Researchers have deciphered part of the cellular events underlying apoptosis, providing insights into cancer pathologies and potential cures. The cooperation between c-Abl and p73 leads to cell death, highlighting their roles in safeguarding the cell against DNA damage.
SourceAmerican Committee for the Weizmann Institute of Science·JournalNature·DateDec 19, 1999
Researchers at UT Southwestern Medical Center discovered the crystal structure of an enzyme that repairs DNA damage caused by sunlight and cigarettes, a key component in the nucleotide excision repair system. The discovery sheds light on how this system differentiates between healthy and damaged DNA and recognizes various lesions.
SourceUT Southwestern Medical Center·JournalProceedings of the National Academy of Sciences·DateOct 12, 1999
A research team suggests that electronic charge transfer in DNA occurs through temporary distortions in its structure, creating a 'polaron' that carries the charge. This process can help scientists understand DNA damage and repair mechanisms, leading to potential applications in diagnostic techniques and micromachines.
SourceGeorgia Institute of Technology·JournalProceedings of the National Academy of Sciences·DateJul 20, 1999
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Apple iPhone 17 Pro delivers top performance and advanced cameras for field documentation, data collection, and secure research communications.
Researchers found that head trauma impairs brain cells' ability to detect and repair DNA damage, leading to weeks of prolonged cell death. The study suggests that the body's surveillance system breaks down after an injury, making it difficult for cells to recover.
SourceUniversity of Pennsylvania School of Medicine·JournalJournal of Neurochemistry·DateJul 9, 1999
Researchers at the University of Notre Dame have developed a computer model that provides atomic details of the binding interactions between damaged DNA and the repair enzyme DNA photolyase. The model provides new insights into which parts of the enzyme are important for electron transfer, which could lead to the development of an arti...
SourceUniversity of Notre Dame·JournalJournal of the American Chemical Society·DateJun 3, 1999
A study by UC San Francisco researchers found that adolescent smokers incur more severe DNA damage than adult smokers, which can increase the risk of lung cancer. The study, published in Journal of the National Cancer Institute, suggests that smoking during adolescence may produce physiologic changes leading to persistent DNA damage.
SourceUniversity of California - San Francisco·JournalJNCI Journal of the National Cancer Institute·DateApr 6, 1999
A commonly used sunscreen ingredient, PBSA, can damage DNA when exposed to sunlight, according to a recent study. The research suggests that this could lead to increased risk of developing skin cancer if similar damage occurs within skin cells.
SourceAmerican Chemical Society·JournalChemical Research in Toxicology·DateDec 29, 1998
University of North Carolina at Chapel Hill scientists have found that the BRCA1 gene is necessary for transcription-coupled repair of certain types of DNA damage, which can lead to breast and ovarian cancer. The study provides direct evidence of the gene's role in DNA repair and may help develop new treatments for cancer.
SourceUniversity of North Carolina at Chapel Hill·JournalScience·DateAug 13, 1998
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Researchers create ultra-sensitive assay to detect DNA damage caused by ionizing radiation and cancer-causing chemicals, showing potential for early detection and treatment of genetic injuries. The new technique is 10,000 to 100,000 times more sensitive than existing methods.
SourceUniversity of North Carolina at Chapel Hill·JournalScience·DateMay 14, 1998
A new study suggests that inhibiting poly(ADP-ribose) polymerase (PARP) enzyme may protect nerve cells from energy loss and prevent irreversible damage after a stroke. The research, published in Nature Medicine, found that genetically modified mice without the PARP gene experienced reduced brain damage compared to unaltered mice.
SourceJohns Hopkins Medicine·JournalNature Medicine·DateSep 29, 1997
A team of researchers has found that most DNA mutations in yeast are caused by the activity of an enzyme called REV1. The enzyme helps cells evade quality control and can produce mutations when repairing damaged DNA, potentially leading to cancer.
A new DNA polymerase, dubbed zeta, allows yeast cells to replicate damaged DNA, increasing their odds of survival but also the risk of mutations. This enzyme is a last-gasp option for cells when all attempts to fix damaged DNA have failed, and its discovery sheds light on how organisms cope with this constant problem.
A University of Cincinnati biologist discovered a microbe that can repair its DNA with visible light, a process known as photoreactivation. This finding is significant for understanding how hyperthermophiles survive in geothermal habitats.
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