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To understand the relationship between dietary vitamins A, vitamin C and vitamin E and glioma in Chinese population.
Based on the case-control study of 1:1 individual matched, a questionnaire survey was carried out on 343 patients with glioma and 343 healthy controls. The intake of three dietary vitamins was evaluated through the food frequency questionnaire, and the intake of dietary vitamins and gloima was analyzed by logistic regression, and explored the dose-response relationship between the two.
Compared with the lowest quantile, the highest quantile of dietary vitamin A intake was associated with a decrease in overall glioma risk (OR=0.10, 95% CI: 0.04-0.30), astrocytoma risk (OR=0.71, 95% CI: 0.59-0.86), glioblastoma risk (OR=0.86, 95% CI: 0.78-0.96), low-grade glioma risk (OR=0.65, 95% CI: 0.47-0.91), and high-grade glioma risk(OR=0.87, 95% CI: 0.80-0.94).The highest quantile of dietary vitamin C intake was associated with a decrease in overall glioma risk (OR=0.02, 95% CI: 0.01-0.08), astrocytoma risk (OR=0.69, 95% CI: 0.54-0.87), glioblastoma risk (OR=0.82, 95% CI: 0.74-0.91), low-grade glioma risk (OR=0.75, 95% CI: 0.62-0.91) and high-grade glioma risk (OR=0.79,95% CI: 0.72-0.86). However, dietary vitamin E intake was only associated with an increased risk of astrocytoma (OR=2.99, 95% CI: 1.23-7.30).There was a significant linear dose-reaction relationship between the two, but the results of vitamin E were inconsistent and should be treated with caution.
High intake of dietary vitamin A and vitamin C may be associated with a reduced risk of glioma, but the impact of vitamin E on different clinical subtypes of glioma is not consistent. In the future, prospective studies should be conducted to further verify the association between these dietary vitamins and glioma.
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| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
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