| ¿µ¹® | glucose tolerance test | ÇÑ±Û | Æ÷µµ´ç°ßµõ°Ë»ç |
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| ¿µ¹® | lactose | ÇÑ±Û | Á¥´ç |
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| ¿µ¹® | tolerance | ÇÑ±Û | ³»¼º, °ßµõ |
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| ¿µ¹® | test | ÇÑ±Û | °Ë»ç |
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| ¿µ¹® | scratch test | ÇÑ±Û | ³Àý¹ý |
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| LTT | lactose tolerance test; leucine tolerance test; limited treadmill test; lymphocyte transformation te... |
|---|---|
| ETT | endotracheal tube; epinephrine tolerance test; exercise tolerance test; exercise treadmill test; ext... |
| AITT | arginine insulin tolerance test; augmented insulin tolerance test |
| ATT | arginine tolerance test; aspirin tolerance time |
| PAT | Pain Apperception Test; paroxysmal atrial tachycardia; patient; phenylaminotetrazole; physical abili... |
| Lac | Lactose |
|---|---|
| ETT | Exercise Tolerance Test |
| FSIGTT | Frequently sampled intravenous glucose tolerance test |
| 75 g | Glucose Tolerance Test |
| GTT | Glucose Tolerance Test |
| oral lactose tolerance test | A test for lactose deficiency; the plasma glucose response to an oral lactose load is measured as in the (oral) glucose tolerance test. (05 Mar 2000) |
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| bile acid tolerance test | A sensitive test of hepatic dysfunction; following oral administration of labelled or unlabelled bile acid, the measured fractional disappearance rate or 10-minute retention is measured. (05 Mar 2000) |
| galactose tolerance test | A liver function test, based on the ability of the liver to convert galactose to glycogen, measured by the rate of excretion of galactose following ingestion or intravenous injection of a known amount; normally, less than 3 g appear in the urine within 5 hours after the ingestion of 40 g. (05 Mar 2000) |
| glucose tolerance test | <chemical pathology, investigation> A special test where the blood glucose is measure in intervals after a glucose-rich meal is taken, a test used for diagnosing diabetes. (27 Sep 1997) |
| xylose tolerance test | <investigation> This test measures the intestine's ability to absorb the simple sugar, D-xylose. This is an indicator for whether or not nutrients are being absorbed properly in the intestine. This test is often used to evaluate persistent diarrhoea, weight loss, malnutrition and cases of suspected malabsorption. Abnormal results may be seen in the following conditions: Crohn's disease, Giardiasis, hookworm infestation, radiation enteritis, celiac sprue, viral gastroenteritis and Whipple's disease. (27 Sep 1997) |
| test, glucose tolerance | After fasting, a specific amount (100 grams) of glucose is given by mouth, and the blood levels of this sugar are measured every hour. Normally, the blood glucose should return to normal within 2 to 2 1/2 hours. The gtt is considered a classic test of carbohydrate metabolism. It is much used in the diagnosis of diabetes. The gtt depends on a number of factors including the ability of the intestine to absorb glucose, the power of the liver to take up and store glucose, the capacity of the pancreas to produce insulin, and the amount of active insulin. (12 Dec 1998) |
| lactose | The major sugar in human and bovine milk. Conversion of lactose to lactic acid by Lactobacilli etc. Is important in the production of yoghurt and cheese. (18 Nov 1997) |
| lactose carrier protein | <protein> The best known example is the product of the lacY gene, coded for in the lactose operon and responsible for the uptake of lactose by E. Coli. (18 Nov 1997) |
| lactose factors | Plasmids which determine the ability of a bacterium to ferment lactose. (12 Dec 1998) |
| lactose intolerance | A disorder characterised by abdominal cramps and diarrhoea after the consumption of food containing lactose (for example milk, ice cream), believed to occur due to a deficiency of intestinal lactase (enzyme that breaks down lactose), may appear first in young adults who have previously tolerated milk well as infants. (27 Sep 1997) |
| lactose-litmus agar | Agar made by adding 2% lactose and litmus to acid-free nutrient agar; formerly used in the identification of Salmonella typhi. (05 Mar 2000) |
| lactose operon | Group of adjacent and coordinately controlled genes concerned with the metabolism of lactose in E. Coli. The lac operon was the first example of a group of genes under the control of an operator region to which a lactose repressor binds. When the bacteria are transferred to lactose containing medium, allolactose (which forms by transglycosylation when lactose is present in the cell) binds to the repressor, inhibits the binding of the repressor to the operator and allows transcription of mRNA for enzymes involved in galactose metabolism and transport across the membrane (_ galactosidase, galactoside permease and thiogalactoside transacetylase). (18 Nov 1997) |
| lactose permease | <chemical> Chemical name: permease, lactose Synonym: lactose carrier protein, lactose permease m protein, lac permease, lactose transport protein, lactose transport system, lac carrier protein, lacs protein, lactose transport system, streptococcus thermophilus, lacy protein (26 Jun 1999) |
| lactose repressor | Protein (tetramer of 37 kD subunits) that normally binds with very high affinity to the operator region of the lactose operon and inhibits transcription of the downstream genes by blocking access of the polymerase to the promoter region. When the lactose repressor binds allolactose, its binding to the operator is reduced and the gene set is derepressed. (18 Nov 1997) |
| lactose synthase | <enzyme> An enzyme of the transferase class that catalyses the transfer of galactose from udpgalactose to glucose, forming lactose. The enzyme is a complex of the enzyme n-acetyllactosamine synthase and alpha-lactalbumin; the latter protein is present in lactating mammary gland cells where it alters the usual specificity of the former to make lactose synthesis the preferred reaction. Chemical name: UDPgalactose:D-glucose 4-beta-D-galactosyltransferase Registry number: EC 2.4.1.22 (12 Dec 1998) |
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