the peroxisome proliferator-activated receptors (ppars) -α, -δ/β and -γ are the ligand-activated transcription factors involved in the regulation of fatty acid and lipoprotein metabolism, energy balance, cell proliferation and differentiation and atherosclerosis, etc. we investigated the associations of 10 single-nucleotide polymorphisms (snps) in ppars with apolipoprotein (apo) a-i/apob ratio ...

A neurysms and dissections are the major pathologies affecting the thoracic aorta. Based on available data, up to 20% of individuals with thoracic aortic aneurysms (TAAs) may have a first-degree relative with aortic aneurysms or dissection, indicating a strong genetic predisposition.1 Within families, TAAs are inherited primarily in an autosomal dominant manner, with decreased penetrance and va...

The most widespread and harmful disease of barley is net form blotch caused by the ascomycete Pyrenophora teres f. Drechsler (Ptt). A cost effective environmentally sustainable strategy for protection against Ptt to develop cultivars possessing genetic resistance. In previous GWA analysis, we identified SNP-markers associated with a resistance locus on chromosome 3H in interval 45.82–54.53 cM. ...

Đặt vấn đề: Gen HLA (kháng nguyên bạch cầu người) nằm trên nhánh ngắn nhiễm sắc thể số 6, được chia thành 3 lớp với các locus gen khác nhau. Việc xác định kiểu là rất cần thiết trong ghép, đặc biệt ghép tế bào gốc tạo máu. Đối tượng và phương pháp: Nghiên cứu cắt ngang tỷ lệ allele HLA-A, HLA-B, HLA-C HLA-DRB1 138 người cho máu tại Bệnh viện Nhi Trung ương từ năm 2010 - 2020. Kiểu bằng pháp PCR...

Site specific recombinases have provided the experimental strategy necessary to modulate the expression of gene products in the mouse embryo. In this study we have exploited Cre recombinase to develop a widely applicable cell marking system which functions efficiently even at early post-implantation embryonic stages. Importantly, the techniques and reagents derived in this study are generally a...

The mutations of the Abruptex locus in Drosophila melanogaster fall into three categories. There are recessive lethal alleles and viable alleles. The latter can be divided into suppressors and nonsuppressors of Notch mutations. The recessive lethals are lethal in heterozygous combination with Notch. As a rule the recessive lethals are lethal also in heterozygous combination with the viable alle...

INTRODUCTION This study investigated five confirmed rheumatoid arthritis (RA) susceptibility genes/loci (HLA-DRB1, PTPN22, STAT4, OLIG3/TNFAIP3 and TRAF1/C5) for association with susceptibility and severity in an inception cohort. METHODS The magnitude of association for each genotype was assessed in 1,046 RA subjects from the Yorkshire Early RA cohort and in 5,968 healthy UK controls. Additi...

Ten microsatellites were isolated from a genomic DNA library generated from guppy (Poecilia reticulata; Poecilidae) enriched for CA-repeats. All of the 10 microsatellites were polymorphic in guppy with an average allele number of 4.9/locus ranging from 2 to 14. All 10-primer pairs amplified specific products in green swordtail (Xiphophorus helleri) and 9 of the 10 microsatellites displayed poly...

H ow do organisms adapt to new environments? The popular conception of the adaptive process generally runs like this: A mutation arises that leads to an improved phenotype under novel environmental conditions (for example, a beak modifi cation suited to exploiting an untapped food source). Because of the enhanced reproductive success of individuals carrying the mutant allele (or gene variant), ...

Homozygosity is a commonly used summary of allele-frequency distributions at polymorphic loci. Because high-frequency alleles contribute disproportionately to the homozygosity of a locus, it often occurs that most homozygotes are homozygous for the most frequent allele. To assess the relationship between homozygosity and the highest allele frequency at a locus, for a given homozygosity value, w...