| 영문 | nucleic acid | 한글 | 핵산 |
|---|---|---|---|
| 설명 | 염기, 당, 인산으로 이루어진 뉴클레오티드가 긴 사슬 모양으로 중합된 고분자 물질. 유전이나 단백질 합성을 지배하는 중요한 물질로, 생물의 증식을 비롯한 생명 활동 유지에 중요한 작용을 한다. 구성 당인 오탄당이 리보오스인 리보핵산과 디옥시리보오스인 디옥시리보 핵산으로 나뉜다. 펜토스로서 리보스나 데옥시리보스 어느 한쪽만을 포함하며 전자를 리보핵산(RNA), 후자를 데옥시리보핵산(deoxyribonucleic acid, DNA)이라 부른다. 모두 4종류의 유기염기에 의해 특징지어지며 아데닌, 구아닌 및 시토신은 양자에 공통이다. 티민은 DNA에, 우라실은 RNA에 포함된다. DNA는 주로 핵에 존재하며 형질유전에 그리고 RNA는 세포질속에서 단백질 합성에 관여한다. 섭취된 핵산은 소화관에서 구성분자로까지 가수분해되어 흡수된다. |
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| SIADH | Syndrome of Inappropriate secretion of Anti-Diuretic Hormone; 항이뇨 호르몬 분비 이상 증후군 |
|---|---|
| ANESR | apparent norepinephrine secretion rate |
| ASD | aldosterone secretion defect; Alzheimer senile dementia; antisiphon device; arthritis syphilitica de... |
| ASR | aldosterone secretion rate; antistreptolysin reaction |
| CS | calf serum; campomelic syndrome; carcinoid syndrome; cardiogenic shock; caries-susceptible; carotid ... |
| gastric digestion | That part of digestion, chiefly of the proteins, carried on in the stomach by the enzymes of the gastric juice. Synonym: peptic digestion. (05 Mar 2000) |
|---|---|
| gastric emptying | <radiology> Solids linear (90-min half-time), liquids exponential (faster) (12 Dec 1998) |
| gastric feeding | Giving of nutriment directly into the stomach by means of a tube inserted via the nasopharynx and oesophagus or directly through the abdominal wall. (05 Mar 2000) |
| gastric filling defects | <radiology> Malignant tumours, carcinoma, lymphoma, leiomyosarcoma, metastases, benign, leiomyoma, lipoma, neurofibroma, polyp, hyperplastic, adenomatous, hamartomatous, others, bezoar, Nissen fundoplication, ectopic pancreas (12 Dec 1998) |
| gastric fistula | Abnormal passage communicating with the stomach. (12 Dec 1998) |
| gastric folds | Characteristic folds of the gastric mucosa, especially evident when the stomach is contracted. Synonym: plicae gastricae, gastric folds, ruga gastrica. (05 Mar 2000) |
| gastric follicles | Branched tubular glands lying in the mucosa of the fundus and body of the stomach; such glands contain parietal cells that secrete hydrochloric acid, zymogen cells that produce pepsin, and mucous cells. Synonym: glandulae gastricae, glandulae propriae, fundus glands, gastric follicles, Wasmann's glands. (05 Mar 2000) |
| gastric freezing | Formerly used treatment for peptic ulcer designed to reduce or eliminate the production of acid gastric juice by freezing the secretory cells with a supercooled fluid introduced into a balloon positioned in the stomach. (05 Mar 2000) |
| gastric fundus | The superior portion of the body of the stomach above the level of the cardiac notch. (12 Dec 1998) |
| gastric glands | Branched tubular glands lying in the mucosa of the fundus and body of the stomach; such glands contain parietal cells that secrete hydrochloric acid, zymogen cells that produce pepsin, and mucous cells. Synonym: glandulae gastricae, glandulae propriae, fundus glands, gastric follicles, Wasmann's glands. (05 Mar 2000) |
| gastric haemorrhage | Haemorrhage from the stomach. Synonym: gastric haemorrhage. Origin: Gastro-+ G. Rhegnymi, to burst forth (05 Mar 2000) |
| gastric hypersecretion | Excessive formation of gastric juice, especially the acid component. (05 Mar 2000) |
| gastric impression | A hollow on the visceral surface of the left lobe of the liver corresponding to the location of the stomach. Synonym: impressio gastrica. (05 Mar 2000) |
| gastric indigestion | <symptom> The impairment of the power of function of digestion, usually applied to epigastric discomfort following meals. Origin: Gr. Peptein = to digest (18 Nov 1997) |
| gastric inhibitory polypeptide | <hormone> Peptide hormone (43 amino acids) that stimulates insulin release and inhibits the release of gastric acid and pepsin. Acronym: GIP (18 Nov 1997) |