• Title/Summary/Keyword: genetic epidemiology

Search Result 248, Processing Time 0.026 seconds

Host Genetic Epidemiology by SNP Study

  • Shin, Hyong-Doo
    • 대한약학회:학술대회논문집
    • /
    • 대한약학회 2001년도 Proceedings of International Convention of the Pharmaceutical Society of Korea
    • /
    • pp.99-100
    • /
    • 2001
  • PDF

Allelotypes Analyses on the Radiation Induced Lymphomas on the Hybrid F1 Mice

  • Hong, Doo-Pyo
    • 한국독성학회:학술대회논문집
    • /
    • 한국독성학회 2003년도 추계학술대회
    • /
    • pp.103-104
    • /
    • 2003
  • Malignant lymphoma cells are considered to develop through a multi-step genetic processed and to be efficiently induced by genetic events brought about by irradiation. In an epidemiology study, few events are supposed to be directly involved in the leukemogenesis compared with those which occur in solid tumors.(omitted)

  • PDF

Sex Differences in Cancer: Epidemiology, Genetics and Therapy

  • Kim, Hae-In;Lim, Hyesol;Moon, Aree
    • Biomolecules & Therapeutics
    • /
    • 제26권4호
    • /
    • pp.335-342
    • /
    • 2018
  • The incidence and mortality of various cancers are associated with sex-specific disparities. Sex differences in cancer epidemiology are one of the most significant findings. Men are more prone to die from cancer, particularly hematological malignancies. Sex difference in cancer incidence is attributed to regulation at the genetic/molecular level and sex hormones such as estrogen. At the genetic/molecular level, gene polymorphism and altered enzymes involving drug metabolism generate differences in cancer incidence between men and women. Sex hormones modulate gene expression in various cancers. Genetic or hormonal differences between men and women determine the effect of chemotherapy. Until today, animal studies and clinical trials investigating chemotherapy showed sex imbalance. Chemotherapy has been used without consideration of sex differences, resulting in disparity of efficacy and toxicity between sexes. Based on accumulating evidence supporting sex differences in chemotherapy, all clinical trials in cancer must incorporate sex differences for a better understanding of biological differences between men and women. In the present review, we summarized the sex differences in (1) incidence and mortality of cancer, (2) genetic and molecular basis of cancer, (3) sex hormones in cancer incidence, and (4) efficacy and toxicity of chemotherapy. This review provides useful information for sex-based chemotherapy and development of personalized therapeutic strategies against cancer.

Common Genetic Variations in the MUC5AC Gene are Not Related to Helicobacter pylori Serologic Status

  • Zhou, Cheng-Jiang;Zhang, Liu-Wei;Gao, Fang;Zhang, Bin;Wang, Ying;Chen, Da-Fang;Jia, Yan-Bin
    • Asian Pacific Journal of Cancer Prevention
    • /
    • 제15권24호
    • /
    • pp.10719-10722
    • /
    • 2015
  • Several lines of evidence suggest that MUC5AC genetic polymorphisms might confer susceptibility to H. pylori infection and therefore gastric cancer risk. We here assessed the association of common polymorphisms in the MUC5AC gene with H. pylori seroprevalence using an LD-based tagSNP approach in a north-western Chinese Han population. A total of 12 tagSNPs were successfully genotyped among 281 unrelated ethnic Han Chinese who had no cancer history, and no identifiable gastric disease or genetic disease. No significant association between any alleles, genotypes or haplotypes and H. pylori seroprevalence was observed. Our results suggest that common genetic variations in MUC5AC gene might not make a major contribution to the risk of H. pylori infection.

유전체 역학 연구를 위한 시료의 보관과 분석 (Specimen of Storage and Analysis for Genomic Epidemiology)

  • 이관희;홍윤철
    • Journal of Preventive Medicine and Public Health
    • /
    • 제36권3호
    • /
    • pp.209-212
    • /
    • 2003
  • Because of advances of technologies in the field of genmic epidemiology in the recent years, specimen collection, storage and analysis became an essential part of research methodologies. DNA is now being used in epidemiologic studies to evaluate genetic risk factors and specimens other than the fresh whole blood can De used for PCR. Therefore, All nucleated cells, such as buccal swabs and urine specimens, are suitable for DNA analysis. For an unlimited source of genomic DNA, EBV transformation of lymphocytes can be used for immortalization. However, the type of specimen collected in genomic epidemiologic studies will depend on the study where the epidemiologist play a leading role for the design. We also briefly described various finds of analysis for SNP that is an essential part of the genomic epidemiology.

Understanding the genetics of systemic lupus erythematosus using Bayesian statistics and gene network analysis

  • Nam, Seoung Wan;Lee, Kwang Seob;Yang, Jae Won;Ko, Younhee;Eisenhut, Michael;Lee, Keum Hwa;Shin, Jae Il;Kronbichler, Andreas
    • Clinical and Experimental Pediatrics
    • /
    • 제64권5호
    • /
    • pp.208-222
    • /
    • 2021
  • The publication of genetic epidemiology meta-analyses has increased rapidly, but it has been suggested that many of the statistically significant results are false positive. In addition, most such meta-analyses have been redundant, duplicate, and erroneous, leading to research waste. In addition, since most claimed candidate gene associations were false-positives, correctly interpreting the published results is important. In this review, we emphasize the importance of interpreting the results of genetic epidemiology meta-analyses using Bayesian statistics and gene network analysis, which could be applied in other diseases.

Novel pan-lineage VP1 specific degenerate primers for precise genetic characterization of serotype O foot and mouth disease virus circulating in India

  • Sagar Ashok Khulape;Jitendra Kumar Biswal;Chandrakanta Jana;Saravanan Subramaniam;Rabindra Prasad Singh
    • Journal of Veterinary Science
    • /
    • 제24권3호
    • /
    • pp.40.1-40.6
    • /
    • 2023
  • Analysis of the VP1 gene sequence of the foot and mouth disease virus (FMDV) is critical to understanding viral evolution and disease epidemiology. A standard set of primers have been used for the detection and sequence analysis of the VP1 gene of FMDV directly from suspected clinical samples with limited success. The study validated VP1-specific degenerate primer-based reverse transcription polymerase chain reaction (RT-PCR) for the qualitative detection and sequencing of serotype O FMDV lineages circulating in India. The novel degenerate primer-based RT-PCR amplifying the VP1 gene can circumvent the genetic heterogeneity observed in viruses after cell culture adaptation and facilitate precise viral gene sequence analysis from clinical samples.

Association of Interleukin 10 Haplotype with Low Bone Mineral Density in Korean Postmenopausal Women

  • Park, Byung-Lae;Han, In-Kwon;Lee, Ho-Sa;Kim, Lyoung-Hyo;Kim, Sa-Jin;Shin, Joon-Shik;Kim, Shin-Yoon;Shin, Hyoung-Doo
    • BMB Reports
    • /
    • 제37권6호
    • /
    • pp.691-699
    • /
    • 2004
  • Osteoporosis is a disease characterized by exaggerated loss of bone mass, with as much as 50 to 85% of the variation in bone mineral density (BMD) commonly accepted as being genetically determined. Although intensive studies have attempted to elucidate the genetic effects of polymorphisms on BMD and/or osteoporosis in several genes, the genes involved are still largely unknown. The possible associations of genetic variants in five-candidate genes (IL10, CCR3, MCP1, MCP2 and GC) with spinal BMD were investigated in Korean postmenopausal women (n = 370). Fourteen SNPs in five candidate genes were genotyped, and the haplotypes of each gene constructed. The associations of adjusted spinal BMD by age, year since menopause (YSM) and body mass index (BMI), with genetic polymorphisms, were analyzed using multiple regression models. Genetic association analysis of Korean postmenopausal women revealed that IL10 -592A > C and/or IL10 ht2 were associated with decreased bone mass, whereas no significant associations were observed with all polymorphisms in other genes. The levels of spinal BMD in individuals bearing the IL10 -592CC genotype were lower ($0.78{\pm}0.16$) than those in others ($0.85{\pm}0.17$) (P = 0.02), and the BMD of IL10 ht2 bearing individuals were also lower ($0.82{\pm}0.15$) than those in others ($0.85{\pm}0.17$) (P = 0.04). Our results suggest that variants of IL10 might play a role in the decreased BMD, although additional study might need to be followed-up in a more powerful cohort.