…The method to distinguish between these causes and to determine the extent of the disorder is called a digestive and absorptive test. The method (balance study) is currently considered to be the most accurate and natural method, in which subjects are asked to eat a test meal prepared to contain a certain amount of fat or protein for a certain period of time, and the amount of undigested fat or protein excreted in the feces during that period is measured, and the presence or absence of digestive and absorptive disorders is determined from the excretion rate relative to the amount ingested. Another method that is often used is to have subjects ingest a certain amount of fat ( 131I -triolein) or protein ( 131I -albumin) bound to the radioisotope 131I , and then measure the amount of 131I in blood collected at regular intervals or the amount of 131I remaining in the excreted feces using a radiation meter, and calculate the absorption rate or excretion rate relative to the amount of 131I ingested to determine digestive and absorptive capacity. … From [Pancreatic function test]...This is a physiological test method, in which the test meal causes the secretion of gastrointestinal hormones, and the stimulation of pancreatic juice secretion is observed. To assess pancreatic function from the state of digestion and absorption, there is a balance study in which the amount of fat and nitrogen in the feces is measured after a certain amount of food is ingested, but this is not often performed because it is troublesome and the results obtained do not accurately reflect pancreatic exocrine function. As a general test, undigested food residues in the feces are observed under a microscope to estimate pancreatic exocrine function. *Some explanations of terms that mention "balance study" are listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…これらの原因を鑑別し,また,その程度を判定する方法を消化吸収試験という。一定量の脂質,またはタンパク質を含むよう調理された試験食を被検者にある期間食べさせ,この間に排出された糞便中の未消化の脂質またはタンパク質の量を測定し,摂取された量に対する排出率から消化吸収障害の有無をみる方法(出納試験balance study)が,現在のところいちばん自然に近く,最も正確な方法とされている。また,放射性同位体である131Iを結合させた一定量の脂肪(131I‐トリオレイン),あるいはタンパク質(131I‐アルブミン)を摂取させた後,一定間隔で採取された血液中の131Iの量や,あるいは排出された糞便中に残存する131Iの量を放射線測定器を用いて測定し,摂取された131Iの量に対する吸収率,あるいは排出率を算定して,消化吸収能をみる方法もしばしば用いられている。… 【膵機能検査】より…この方法は生理的な検査法で,試験食により消化管ホルモンが分泌され,その刺激で膵液分泌が起こる状態を観察するものである。 消化吸収の状態から膵機能を判定するものとして,一定量の食事を摂取したのち,糞便中の脂肪量,窒素量を測定する出納試験balance studyがあるが,面倒なわりに得られた結果は膵外分泌機能を鋭敏に反映するわけではないので,あまり行われない。一般検査として,糞便中の未消化の食物残渣を顕微鏡で観察して膵外分泌機能を推定することも行われる。… ※「balance study」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
A village in Kiso County, southwest of Nagano Pref...
…[Hiroji Koyama]. . … *Some of the terminology th...
…It is located on a key transportation route betw...
…In some cases, a mosque was built in the courtya...
...Ryogoku Hirokoji, located at the west end of R...
→ Godetia Source : Heibonsha Encyclopedia About My...
A group of venomous snakes of the Elapidae family ...
A general term for small New World monkeys belongi...
…The kidneys normally move up and down a few cent...
It is the capital of the province of Overijssel i...
〘 noun 〙 (also "kobon") 1. A small book....
A craftsman who makes prayer beads. He appears as ...
A former province that occupied the southwestern h...
…Anser anser is a domestic fowl belonging to the ...
…For example, it was during this period that the ...