| 单词 | hypervitaminosis | |||
| 释义 | hypervitaminosishy·per·vi·ta·min·o·sisH0361600 (hī′pər-vī′tə-mə-nō′sĭs)hypervitaminosis(ˌhaɪpəˌvɪtəmɪˈnəʊsɪs; -ˌvaɪ-)hy•per•vi•ta•mi•no•sis(ˌhaɪ pərˌvaɪ tə məˈnoʊ sɪs)n.
Hypervitaminosishypervitaminosis[‚hī·pər‚vīd·ə·mə′nō·səs]Hypervitaminosisintoxication produced by sharply increased doses of vitamins A and D. (The possibility of developing hypervitaminosis in relation to other vitamins has not been firmly established.) Hypervitaminosis D develops in children after introduction of doses of vitamin D higher than 50,000 IU per day, and in adults of 100,000-150,000 IU per day. Hypervitaminosis in adults is most often acute, accompanied by stomach pains, nausea, vomiting, diarrhea or constipation; kidney function is drastically disturbed and hypertension, headaches, and pains in the bones and muscles also appear. In children the symptoms are the same but less sharply pronounced. Treatment involves discontinuation of vitamin D intake, abundant liquids, saline infusion, and administration of glucose, ascorbic acid, and vitamin E. Hypervitaminosis A develops after ingesting products (for example, polar bear liver) or preparations rich in vitamin A. In adults it is manifested by severe headache, nausea, vomiting, diarrhea, and peeling of the skin of the face and body. Chronic hypervitaminosis A may develop in children after ingestion of a large quantity of vitamin A preparations; it is manifested by dry, rough, itching skin and the development of hard, shell-like, deep, and painful swellings on the forearms and (less often) on the hands and feet. Enlargement of the liver is sometimes observed. Recovery begins after discontinuation of vitamin A intake. REFERENCESEfremov, V. V. “Toksichnost’ vitamina A. Toksichnost’ vitamina D.” In Mnogotomnoe rukovodstvo po vnutrennim bolezniam, vol.8. Editor in chief, E. M. Tareev. Moscow, 1965. Pages 488 and 625.V. V. EFREMOV hypervitaminosishypervitaminosis[hi″per-vi″tah-mĭ-no´sis]hy·per·vi·ta·min·o·sis(hī'pĕr-vī'tă-mi-nō'sis),hypervitaminosis(hī′pər-vī′tə-mə-nō′sĭs)hypervitaminosisAny clinical condition caused by the ingestion of vitamins in extreme excess of physiologic requirements or pharmacologic doses. Hypervitaminosis is most commonly caused by excess consumption of fat-soluble vitamins, especially vitamins A and D (less commonly vitamins E and K), as they accumulate and remain stored in body fat; water-soluble vitamins B and C are readily excreted.hypervitaminosisPopular nutrition A condition caused by the ingestion of vitamins in extreme excess of physiologic requirements, or pharmacologic doses; it most commonly is caused by excess consumption of fat-soluble vitamins–eg, vitamins A and D, as they accumulate in body fat; water-soluble vitamins B and C, are readily excreted. See Vitamins. Cf Pseudovitamins.hy·per·vi·ta·min·o·sis(hī'pĕr-vī'tă-mi-nō'sis)hypervitaminosisOne of a number of disorders that can result from excessive intake of certain vitamins, especially vitamins A and D. Overdosage with vitamin D can cause deposition of calcium in arteries and other tissues and kidney failure.Hypervitaminosishy·per·vi·ta·min·o·sis(hī'pĕr-vī'tă-mi-nō'sis)hypervitaminosis
Words related to hypervitaminosis
|
|||
| 随便看 |
|
英语词典包含2567994条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。