Genotypes
Articles tagged with Genotypes
Genotype-guided antidepressant prescribing for patients with depression
A randomized clinical trial found that genotype-guided prescribing of SSRIs did not improve depression symptoms at 3 months but showed higher remission rates at 6 months. Future studies should focus on the long-term impact of this approach.
AI spots hidden behavior patterns in self-organizing bacteria
A custom-built AI system helped uncover how bacterial communities organize themselves, showing that early moments of a biological transition carry more information than previously considered. The findings bring new insight into the relationship between genotype and phenotype in Myxococcus xanthus.
Meat consumption and cognitive health by APOE genotype
A new study published in JAMA Network Open suggests that high meat consumption is associated with better cognitive trajectories and lower dementia risk among individuals with the APOE 34/44 genotype. The finding contradicts previous expectations, highlighting potential clinical and public health relevance for this population.
Genotype-specific response to 144-week entecavir therapy for HBeAg-positive chronic hepatitis B with a particular focus on histological improvement
A prospective study of 49 treatment-naive CHB patients found that HBV genotype significantly influences liver histological response. Patients with genotype B showed higher histological improvement rates and greater inflammation resolution compared to those with genotype C.
Genetic risk for depression impacts neural responses to rewards and setbacks
Young adults with higher genetic risk for depression show reduced brain activity in response to rewards and punishments, while sex-dependent neural responses were also observed. This study highlights potential early indicators for depression before symptoms fully manifest.
Groundbreaking research to identify early signs of multiple sclerosis
A new study by University of South Australia researchers uses genetic recall to explore links between multiple sclerosis (MS) and the Epstein-Barr virus. The study aims to identify early warning signs or biomarkers for MS, enabling early detection and intervention.
AI identifies key gene sets that cause complex diseases
Researchers developed a new computational tool using generative AI to identify key gene combinations underlying complex illnesses. The method amplifies limited gene expression data, enabling researchers to resolve patterns of gene activity that cause complex traits.
Coral diseases and water quality play a key role for coral restoration and survival efforts
A recent study found that coral genotypes display resistance to either high nutrient levels or disease, but not both simultaneously. Poor water quality also reduces coral survival even in the absence of disease.
University of Houston study on hemp may lead to more sustainable farming methods
A University of Houston study found that different genotypes of hemp have unique microbial communities that impact CBD production and fiber quality. The research, published in Nature, highlights the potential for microbiome diversity to inform more sustainable farming practices.
Reducing herbivore damage using biodiversity instead of insecticide
Researchers developed a new method to analyze interactions between neighboring plant individuals, identifying genes involved in associative resistance. Mixing different plant genotypes reduced herbivore damage by up to 24.8% compared to planting individual genotypes.
While vaccines target the changing parts of coronavirus, researchers suggest it’s the unchanging parts we also need to pay attention to
A new study published in Microorganisms highlights the importance of small molecule drugs that target the unchanging parts of the SARS-CoV-2 virus. The research suggests that these stable targets could provide a consistent and reliable treatment option for COVID-19, even as vaccines are updated to address changing viral strains.
A genetic variant determines speed of hair greying and susceptibility to skin melanoma in horses
A genetic variant in the Syntaxin 17 gene determines the speed of hair greying and susceptibility to skin melanoma in horses. The study found three gene variants at the Grey locus, with the G3 variant associated with a higher risk of melanoma.
Prevalence and impact of the KIT M541L variant in patients with mastocytosis
Researchers found a significant association between the KIT M541L variant and mastocytosis diagnosis in patients with systemic and cutaneous mastocytosis. The variant was identified in 19 individuals, mostly diagnosed with systemic mastocytosis, but without significant differences in symptomatology.
HLA-G polymorphic variation (G*0104N exon 3) confers potential risk for recurrent pregnancy losses
Research found a significant association between HLA-G polymorphism G*0104N exon 3 and recurrent pregnancy loss (RPL) in women from Kashmir. The study suggests this variant may confer a risk for RPL within the population, indicating a substantial risk factor.
Proteomics uncover sexual dimorphism and immune changes in aging mice with Werner syndrome
Researchers found that Werner syndrome mice experience age-dependent and sex-specific changes in their livers and immune systems, including fatty liver accumulation and altered lipid metabolism. These findings suggest a potential link between immunoglobulin variants and fatty liver progression in the disorder.
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.
Divergent phenotypes, actionable genotypes, and phenoconversion in a German psychiatric inpatient population
A study of 104 patients found that 83.5% had divergent phenotypes, with a significant increase in CYP2D6 poor metabolizers due to phenoconversion. The results highlight the importance of pharmacogenetic testing and personalized treatment approaches in psychiatric care.
How Covid variants can be detected more rapidly than ever
A new study reveals that genotyping technology detects Covid variants almost a week faster than traditional whole genome sequencing methods. This technique allowed for the rapid detection of Covid variant information, enabling local control measures such as contact tracing to be implemented more quickly.
New genetic vulnerability to herbicide found in nearly 50 sweet and field corn lines
A new study reveals a genetic vulnerability to the herbicide tolpyralate in nearly 50 sweet and field corn lines, with sensitivity increased by adjuvants commonly co-applied with HPPD-inhibitors. The source of the sugary enhancer gene is among the most sensitive genotypes, suggesting widespread potential.
Uncovering thalassemia diversity in southern china through next-generation sequencing
A large-scale thalassemia screening project involving 136,312 individuals revealed a high prevalence of thalassemia in Ganzhou, with 14.545% carriers identified. Next-generation sequencing techniques outperformed conventional methods in identifying novel and rare mutations.
Highly virulent and infectious Lyme disease strain, Borrelia burgdorferi OspC type A genotype, has specific genetic elements which could provide clues to its spread
Researchers have identified specific genetic elements in a highly virulent Lyme disease strain, suggesting key factors contributing to its infectiousness and human dissemination. The study's findings provide new insights into the spread of this debilitating disease.
Educational attainment protects against a genetic risk factor for Alzheimer’s disease
Researchers found that individuals with a genetic mutation linked to early-onset Alzheimer's disease had slower cognitive decline if they had higher education levels. The study also revealed that the APOE e4 mutation, which significantly increases risk for sporadic Alzheimer's disease, was less detrimental to cognitive function in thos...
Scientists track evolution of microbes on the skin’s surface
Researchers tracked the evolution of Staphylococcus aureus in patients with eczema, discovering rapid mutations in a gene that enables the bacteria to grow faster on the skin. These findings could lead to targeted treatments by targeting variants of S. aureus associated with eczema symptoms.
New test quickly identifies patients whose postoperative pain can be effectively treated by hypnosis
A new molecular testing device has been developed to identify individuals with high hypnotizability, who are most likely to benefit from hypnosis interventions for pain treatment. The test detected a subset of highly hypnotizable individuals with high levels of postoperative pain.
Researchers reveal genetic predisposition to immunity against new variants of COVID-19
A study found that an allele of the HLA Class 1 gene may protect individuals from severe COVID-19. The researchers compared the immune systems of patients in different waves of the pandemic and discovered a link between the HLA-A*01:01 allele and effective T-cell immunity against new variants.
New evolutionary insights from stepping outside the lab
Researchers used unconventional methods to study fruit fly phenotypes, finding that loss of epigenetic mark led to changes in behavior, gene expression, metabolism, and offspring production. This knowledge can aid in predicting ecological patterns of change in wild animal populations.
Researchers reveal genetic predisposition to immunity against new variants of COVID-19
A study found that individuals with the HLA-A*01:01 allele have developed robust T-cell immunity to COVID-19, suggesting a genetic predisposition to severe forms of the disease. The allele is more common in patients with mild or asymptomatic COVID-19.
Green tea extract may harm liver in people with certain genetic variations
Research from Rutgers University suggests that high-dose green tea extract may cause liver damage in individuals with specific genetic variations. The study found that two genetic variants, COMT and UGT1A4, were associated with increased liver stress after a year of consuming the supplement.
Oncotarget | Association of fall rate and functional status by APOE genotype in cancer survivors after exercise intervention
A study published in Oncotarget found that APOE genotype is associated with the presence and severity of cancer treatment-related side effects and symptoms, as well as the response to exercise-based interventions in cancer survivors. ApoE4 carriers showed a lower fall rate after exercise intervention compared to non-carriers.
Corals saving corals
A study found that mixing genetic makeup of corals increases resistance to disease, allowing some vulnerable corals to thrive. This 'rescue' effect helps reduce disease transmission among corals.
Genetic background has an effect on the metabolism of essential fatty acids
A recent study from the University of Eastern Finland found that genetic background has an effect on the metabolism of essential polyunsaturated fatty acids alpha-linolenic acid and linoleic acid. The study showed that the FADS1 genotype modifies the responses to diets rich in alpha-linolenic acid and linoleic acid.
Inbred to well-fed: Maize breeding efforts to improve food security and safety in Africa
Researchers developed disease-resistant maize genotypes for smallholder farmers, increasing safe yields and reducing aflatoxin contamination. The findings offer a promising strategy to protect food security in Sub-Saharan Africa.
Scientists unravel millet genotype-microbiota interaction insights to enhance crop adaptability and yield
Researchers identified 257 rhizoplane microbial biomarkers associated with six key agronomic traits, revealing a complex association between millet genotype, root microbiome, and crop growth. The study provides insights into precision agriculture based on genotype-dependent microbial effects in foxtail millet.
HSD3B1 gene research shows association between genotype and endometrial cancer
Researchers at Cleveland Clinic link HSD3B1 genotype to higher risk of type 2 endometrial cancer, which is more aggressive and has lower survival rates than type 1. The study builds on previous associations with breast and prostate cancer, suggesting the gene could serve as a biomarker for certain subtypes.
Weedy rice has become herbicide resistant through rapid evolution
Scientists found that weedy rice has developed herbicide resistance through gene flow from crop rice, with most fields showing resistant plants within 20 years of herbicide-resistant rice cultivation. This rapid evolution is due to the close proximity of weedy and crop rice in the same fields, allowing for pollen transfer and outcrossing.
From genes to plant microbiota
A study found that plant genetic variability controls specific microorganisms, influencing microbial community composition and plant reproductive success. The research used Arabidopsis thaliana genotypes and metabarcoding DNA sequencing to analyze the impact of genetics on leaf microbiota.
Study shows genotype leads to discontinued, decreased medication
A study found that a genetic variant associated with low white blood cell counts, common in people of African ancestry, is linked to discontinued or decreased azathioprine medication. This suggests considering genetic factors before altering treatments.
Slow and steady wilting makes for better beans…soybeans that is
A study by University of Tennessee researchers found two soybean genotypes, 'Ellis' and 'USG Allen', that outperformed others under drought conditions. These varieties showed improved yields and reduced wilting, making them suitable for water-limited areas.
Genes play key role in exercise outcomes - study
A new study identifies 13 genes as key factors in shaping physical fitness through various forms of exercise. Genetic differences account for up to 72% of the variation in muscle strength improvements.
People in the Philippines have the most Denisovan DNA
Researchers found Philippine Negrito ethnic group, Ayta Magbukon, possess the highest level of Denisovan ancestry in the world. Their Denisovan DNA is up to 46% greater than that of Australians and Papuans.
Untrained beer drinkers can taste different barley genotypes
A panel of amateur beer drinkers distinguished between five barley varieties, preferring four developed at WSU over a control. The researchers hope this method can be used to test new barley varieties and reduce reliance on hops.
Irish potato famine pathogen stoked outbreaks on six continents
Researchers found that a specific strain of Phytophthora infestans, known as FAM-1, was responsible for the Irish potato famine and spread to six continents. The pathogen caused massive outbreaks in Europe, leading to widespread starvation and migration.
HPV vaccine shows success in gay, bisexual men
A study by Monash University found a significant reduction in all four HPV genotypes in gay/bisexual men after implementing the school-based HPV vaccination program. The results suggest that male vaccination may lead to a potential reduction in anal cancer among gay and bisexual men in Australia.
Russian biologists discover a transmissible cancer lineage in the Far Eastern mussels
Scientists at St Petersburg University discovered a transmissible cancer lineage in Far Eastern mussels, which can have an adverse effect on these molluscs. The disease is characterized by disseminated neoplasia, a large-scale, fatal cancer that can be compared to leukemia in vertebrates.
Should you take fish oil? Depends on your genotype
Research suggests that fish oil supplementation only lowers triglycerides in individuals with a specific genetic background (AG genotype), while those with the AA genotype may see increased triglycerides.
SSRgenotyper: A new tool to digitally genotype simple sequence repeats
SSRgenotyper is a free bioinformatic tool that digitally genotypes sequenced populations using simple sequence repeats. The tool reduces the time and work required for genotype analysis and solves the transferability problem inherent in electrophoresis estimates.
Exploration of toxic Tiger Rattlesnake venom advances use of genetic science techniques
A team led by University of South Florida biologist Mark Margres has sequenced the genome of the Tiger Rattlesnake to understand its deadly venom. The research reveals a complex process behind the venom's toxicity, with only 15 genes actively producing toxic proteins.
Fetal-maternal discordance in APOL1 genotype contributes to preeclampsia risk
Research identifies fetal APOL1 kidney risk alleles as contributing factors for preeclampsia in African-American mothers, while maternal-fetal genotype discordance is also linked to this risk. The study suggests a connection between APOL1 genetic variants and preeclampsia, particularly among mothers of African ancestry.
Study shows the impact of genetic diversity on effective alligatorweed control
A recent study published in Invasive Plant Science and Management found that genetic diversity among alligatorweed populations affects their response to control measures. The research team identified six genetic variations of the plant, including those responding differently to herbicides and biological controls.
Bermudagrass versus the armyworm
Researchers evaluated 14 experimental bermudagrasses for resistance to fall armyworm damage, identifying a few promising genotypes that are comparable to the industry standard 'TifTuf'. These new genotypes may offer an alternative to environmentally unsound insecticides and help reduce turfgrass damage.
Barley pan-genome: IPK scientists reach milestone on the way to 'transparent' barley
An international team has made a significant step closer to understanding the genetic information of barley by sequencing and decoding its genome. The research identified twenty highly diverse genotypes with unique structural variations in their chromosomes.
Spring-run and fall-run Chinook salmon aren't as different as they seem
A new study shows that the genetic basis for Chinook salmon migration timing is determined by a single stretch of DNA, making seasonal runs the same fish. The researchers found that the different runs are part of a single diverse population within a drainage basin.
Validation of ERCC1/2 signature as radiosensitivity biomarker for tumor & normal tissues in NSCLC
The study found that patients with a radio-sensitive genotype have better survival with standard radiation therapy, while those with the resistant genotype fare better with high dose radiotherapy. High dose radiotherapy is associated with shorter survival times among patients with the sensitive genotype.
Genetic factors in chronic versus episodic migraine
Researchers found genetic markers protecting against migraines' chronification, enabling personalized prevention therapies for at-risk individuals. The study identified polymorphisms in the pain receptor TRPV1, which may help detect those prone to chronic migraine.
Genetics: Romantic relationship dynamics may be in our genes
A study found that a specific genetic variation associated with communal behavior in non-human animals also affects human romantic relationship dynamics. Individuals with this variation reported higher levels of affection, fewer negative feelings, and improved relationship adjustment.
Gall fly outmaneuvers host plant in game of "Spy vs. Spy"
Researchers discovered that goldenrod plants respond to gall fly sex pheromones by priming their chemical defenses, reducing gall formation, but varying effects depending on male fly age. Younger males result in fewer galls, while older males yield more galls.
Improved heat-resistant wheat varieties are identified
Researchers at the University of Córdoba have identified 10 genetically improved wheat genotypes that can tolerate high temperatures better than others. These varieties, recently developed through genetic improvement programs, demonstrated their effectiveness in maintaining productivity under heat-stress conditions.
Genes controlling mycorrhizal colonization discovered in soybean
New research from the University of Illinois has discovered genes controlling mycorrhizal colonization in soybeans. The study found that different soybean genotypes have varying levels of root colonization by a common mycorrhizal fungus.
A new gene involved in strawberry fruiting time is identified
Researchers at the University of Córdoba discovered a new gene involved in strawberry fruiting duration, contradicting previous assumptions that only one gene controlled this trait. The study's findings provide valuable insights into genetic mechanisms and could lead to more efficient improvement programs for strawberry production.