VAŠKŮ, Anna, Jiří VOKURKA and Julie BIENERTOVÁ VAŠKŮ. Obesity-related genes variability in Czech patients with sporadic colorectal cancer: preliminary results. Int J Colorectal Dis. Heidelberg: Springer, 2008, XX, XX, p. x-x, 6 pp. ISSN 0179-1958.
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Basic information
Original name Obesity-related genes variability in Czech patients with sporadic colorectal cancer: preliminary results.
Name in Czech Variabilita genů spjatých s obezitou u českých pacientů s kolorektálním tumorem: předběžné výsledky
Authors VAŠKŮ, Anna (203 Czech Republic, guarantor), Jiří VOKURKA (203 Czech Republic) and Julie BIENERTOVÁ VAŠKŮ (203 Czech Republic).
Edition Int J Colorectal Dis, Heidelberg, Springer, 2008, 0179-1958.
Other information
Original language English
Type of outcome Article in a journal
Field of Study 30200 3.2 Clinical medicine
Country of publisher Germany
Confidentiality degree is not subject to a state or trade secret
WWW URL
Impact factor Impact factor: 1.767
RIV identification code RIV/00216224:14110/08:00034463
Organization unit Faculty of Medicine
UT WoS 000262986000006
Keywords in English obesity -related genes-colorectal cancer-gene polymorphism.Angiotensinogen-il-6-Leptin-Leptin receptor
Tags International impact, Reviewed
Changed by Changed by: prof. MUDr. Anna Vašků, CSc., učo 122. Changed: 18/6/2009 08:12.
Abstract
Genetic variability in obesity related genes and the resulting phenotypes are being recognized as major risk factors for colorectal cancer and/or severity of the disease. A total of 102 patients (79 men and 23 women) and 101 age matched individuals without colorectal cancer, 59 men and 42 women, were recruited. All the individuals were genotyped for the following subset of polymorphisms in obesity-related genes: angiotensinogen gene (M235T and 6A/G), in IL6 gene (174 G/C and 596 A/G), in leptin gene (2548 A/G), and polymorphism Gln223Arg within the leptin receptor (LEPR) gene. A significant increase in frequency of double heterozygote genotype (MTAG) of both angiotensinogen polymorphisms in males with colorectal cancer was observed when compared to control men (odds ratio (OR)=3.77, P corr=0.001). A marginally significant difference in genotype distribution of 174 G/C IL6 polymorphism between the patients in stage I,II compared to patients in III,IV was found (P g=0.05, P a=0.173). The GG genotype of 174 G/C IL6 polymorphism in the patients in stage III,IV carries an increased risk compared to those in stage I,II (OR=2.83, P corr=0.06). Similarly, a difference in genotype distribution of Gln223Arg in LEPR gene between the patients staged I,II compared to III,IV was observed (P g=0.05). The AA genotype was shown to be risky for the patients staged III,IV (OR=3.35, P corr=0.06). The investigated single nucleotide polymorphisms within the genes encoding for obesity related genes were observed to be associated both with clinical manifestation of colorectal cancer and with severity of the disease. Thus, we suggest that defined genetic variability in the genes might become DNA markers for colorectal cancer in the future.
Abstract (in Czech)
Variabilita v genech spjatých s obezitou a následné fenotypy se považují za významné rizikové faktory pro kolorektální karcinom. V naší studii jsme prokázali signifikantní nárůst ve frekvenci dvojitého heterozygota (MTAG) dvou polymorfismů v genu pro angiotensinogen (M235T a 6A/G) u pacientů s kolorektálním karcinomem oproti zdravým mužům. Dále jsme prokázali hraničně signifikantní rozdíl v distribuci genotypu polymorfismu 174 G/C IL6 mezi pacienty se stadiem I,II ve srovnání s pacienty III,IV(Pg=0,05, Pa=0,173). Genotyp GG tohoto polymorfismu nese u pacientů ve stádiu III,IV zvýšené riziko oproti pacientům ve stádiu I,II (OR=2,83, Pcorr=0,06). Prokázali jsme také rozdíl v distribuci genotypů polymorfismu Gln223Arg ve genu LEPR, opět mezi pacienty ve stádiu I,II oproti III,IV (Pg=0,05). Genotyp AA je rizikovější pro pacienty ve stádiu III,IV (OR=3,35, P corr=0,06). Tyto výsledky považujeme za přínosné pro hypotézu, že definovaná genetická variabilita v genech spjatých s obezitou může vést k tomu, že se stanou DNA markery kolorektálního karcinomu, resp. jeho stagingu.
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