Kuriki Kiyonori, Hamajima Nobuyuki, Chiba Hitoshi, Kanemitsu Yukihide, Hirai Takashi, Kato Tomoyuki, Saito Toshiko, Matsuo Keitaro, Koike Koichi, Tokudome Shinkan, Tajima Kazuo
Division of Epidemiology and Prevention, Aichi Cancer Center Research Institute, Nagoya, Japan.
Nutr Cancer. 2005;51(2):170-7. doi: 10.1207/s15327914nc5102_7.
A previous study showed expression of CD36, recently reported to play important roles in metabolism of oxidized low-density lipoprotein and long-chain fatty acids and to be positively correlated with colon cancer prognosis. To examine relationships between colorectal cancer and the CD36 gene A52C polymorphism according to meat consumption as a surrogate for saturated fatty acid intake, we conducted the present hospital-based, case-control study of 128 cases and 238 non-cancer controls. Consumption of meat and vegetables/fruit was divided into three (low, moderate, and high) and two (low and high) groups, respectively. Regarding the risk of colorectal cancer on cross-classifying subjects for the CD36 genotype and meat consumption, the odds ratio (OR) for the C/C genotype with moderate meat consumption relative to the A/A genotype with low meat consumption was 8.30 (95% confidence interval, CI=2.15-32.00). None of individuals with the C/C genotype was in the high meat consumption group. In the low vegetables/fruit consumption group, the OR for the C/C genotype relative to the A/A genotype was 3.03 (95% CI=1.12-7.90). Our findings suggest that interactions between moderate-high meat consumption and the CD36 gene A52C polymorphism may increase the risk of colorectal cancer.
先前的一项研究显示了CD36的表达,最近有报道称CD36在氧化型低密度脂蛋白和长链脂肪酸的代谢中起重要作用,且与结肠癌预后呈正相关。为了根据肉类消费情况(作为饱和脂肪酸摄入量的替代指标)研究结直肠癌与CD36基因A52C多态性之间的关系,我们开展了本次基于医院的病例对照研究,纳入了128例病例和238例非癌症对照。肉类和蔬菜/水果的消费分别分为三组(低、中、高)和两组(低和高)。关于按CD36基因型和肉类消费对受试者进行交叉分类时患结直肠癌的风险,中等肉类消费的C/C基因型相对于低肉类消费的A/A基因型的优势比(OR)为8.30(95%置信区间,CI = 2.15 - 32.00)。C/C基因型的个体均不在高肉类消费组中。在低蔬菜/水果消费组中,C/C基因型相对于A/A基因型的OR为3.03(95%CI = 1.12 - 7.90)。我们的研究结果表明,中等至高肉类消费与CD36基因A52C多态性之间的相互作用可能会增加患结直肠癌的风险。