Articles tagged with Genetic Analysis
A host gene variant on chromosome 6 has been identified as making people more vulnerable to leprosy. Researchers used genome scanning to analyze DNA samples from nearly 100 families and confirmed the findings in an additional 200 families.
Experts agree that inheritable genetic modification (IGM) can improve human health, social life, and access to medical technologies. However, they also emphasize the need for fair decision-making processes, informed participation of stakeholders, and consideration of moral and religious perspectives.
Researchers at UT Southwestern and Children's will develop protocols and procedures for a thermocycler called GeneXpert, which rapidly processes and analyzes DNA samples. The new testing methods should allow children to leave the hospital sooner or avoid hospitalization altogether, with results available within hours.
Researchers have found genes in Anopheles mosquitoes that enable them to resist infection by the deadly malaria parasite. The discovery could lead to new strategies to prevent malaria transmission by spreading the parasite-blocking genes among mosquito populations.
A study found that visual inspection with acetic acid (VIA) and HPV DNA testing are less expensive alternatives to traditional Pap smear screening for cervical cancer in developing countries. VIA, performed every 5 years in women ages 35-55, was the least expensive approach and saved the most lives.
Researchers recreated a 240-million-year-old protein to study the vision of dinosaur ancestors, finding evidence that they may have had dim-light vision. The discovery offers insights into how biologically important molecules evolved over time and paves the way for further studies on ancient species.
The American Society for Colposcopy and Cervical Pathology has released comprehensive national consensus guidelines to evaluate women with abnormal Pap tests. The guidelines recommend utilizing new technologies, including liquid-based cytology and HPV testing, to standardize care.
Researchers at Rush University Medical Center are conducting a Phase I clinical trial to test the safety and efficacy of an HIV vaccine in healthy individuals. The vaccine has shown promise in eliciting specific antiviral cellular immune responses and is generally well-tolerated.
An international team conducted genetic tests of bacteria thriving in Antarctica's Dry Valleys, a frigid desert with no recent rainfall. The research aimed to understand how these microbes survive and shed light on the possibility of life on other planets.
Researchers have found a genetic susceptibility locus on chromosome 1 that may contribute to the development of anorexia nervosa. The study used a genome-wide linkage analysis and identified a possible AN-susceptibility gene on chromosome 1p, adding to growing evidence supporting the role of genetics in eating disorders.
Templeton's analysis reveals human population expansions occurred between 420,000 and 840,000 years ago and 80,000 to 150,000 years ago. Genetic interchange between populations has occurred throughout history, contradicting the idea of replacement events.
The study defines web communities as collections of pages with more links within than outside, and uses a maximum flow framework to efficiently identify them. Communities are found to be highly relevant and topically related, with applications in search engines, directories, and content filtering.
Pamela Douglas, a Johns Hopkins University senior, is analyzing DNA from children suffering from Rhizomelic Chondrodysplasia Punctata, a devastating disease that causes stunted limbs and mental retardation. Her work may yield clues to the development of a treatment for this rare but fatal disorder.
The new sensor can detect specific biological agents even at trace amounts in air or water, enabling quick diagnosis and treatment in remote medicine scenarios. The device's optical-based system improves response time and enables personalized medicine through genotyping.
Researchers create protein nanoarrays with features over 1,000 times smaller than conventional arrays, enabling more accurate and efficient detection of biomolecules. The technology, developed by Northwestern University, holds promise for applications in disease screening and biorecognition.
Researchers use microarray technology to identify genes involved in DNA repair and other cellular processes in yeast. The method allows for rapid identification of gene functions, accelerating efforts to understand the role of genes in various biological processes.
A large-scale study has identified genetic links to schizophrenia in European-American and African-American families. The research found a positive association between chromosome 15 and schizophrenia in European-Americans, but no such link in African-Americans.
Researchers from SurroMed and Penn State University have developed Nanobarcodes particles, which can identify individual particles using optical microscopy. This technology enables multiplexed bioassays in solution, revolutionizing life science research and disease diagnosis.
Researchers unveil a new technique for analyzing tiny airway biopsies, revealing a new disease suspect in asthma - the NKCC1 gene. The technique quickly measures multiple gene activities, supporting current hypotheses about asthma mechanisms while pointing to an unexpected role in excess mucus secretion.
A study published in Science identified two genes, WNK1 and WNK4, that cause pseudohypoaldosteronism type II (PHAII), a disorder leading to hypertension. The researchers found that the mutated genes are overexpressed in affected family members, leading to increased salt reabsorption and blood pressure.
A new DNA test developed by researchers at Indiana University uses quantum dots to quickly and accurately analyze large numbers of genes. The test can identify up to 40,000 different genetic codes in just 10 minutes, making it a game-changer for medical diagnosis and research.
Researchers used SAGE technique to identify 2016 genes active exclusively in dauer, a non-reproductive, long-lived form of C. elegans. Chromosome stability and structure are linked to dauer biology, with tts-1 gene playing a crucial role.
A new DNA test developed by the University of Maryland Biotechnology Institute rapidly identifies Pfiesteria piscicida, a toxic marine microbe linked to fish kills and human illness. The test helps predict outbreaks and study the toxin's effects on immune cells in the brain.
Researchers at Yale University have successfully characterized the function of yeast genes, providing new insights into how human cells work. The study's findings could lead to better understanding and treatment of diseases like cancer.
Campylobacter is a leading cause of food poisoning, but lacked a reliable test until now. Researchers have developed a quick DNA test that can identify the bacterium in eight hours, and a scanner to detect faecal contamination on meat.
The University of Michigan team developed a miniature laboratory on a chip that can analyze DNA samples quickly and sensitively. The device is expected to make DNA analysis widely available and has potential applications in medical diagnostics, forensics, and agriculture.
Virginia Tech Professor Doris Teichler Zallen explains the options, limitations, and problems of genetic testing for disorders like Alzheimer's, breast cancer, and muscular dystrophy. She highlights the need for informed consumers to weigh the benefits and risks of testing against their personal values and circumstances.
A recent study by Johns Hopkins Medicine detected genetic mutations specific to cancer in blood samples of six patients with head and neck cancer. The presence of DNA alterations in the blood was associated with large, advanced tumors and poor outcomes, including increased mortality rates.
A study by Virginia Tech researchers found that public support for the death penalty is ambivalent, with many opponents emerging when alternatives to capital punishment are presented. The survey showed that 83% of Virginians initially supported the death penalty, but this number dropped significantly when respondents were given a life ...