| LA | lactic acid; large amount; laser angioplasty; late abortion; late antigen; latex agglutination; left... |
|---|---|
| LAD | lactic acid dehydrogenase; left anterior descending [artery]; left axis deviation; leukocyte adhesio... |
| PLA | peripheral laser angioplasty; phenyl lactate; phospholipase A; phospholipid antibody; placebo therap... |
| PA | panic attack; pantothenic acid; paralysis agitans; paranoia; passive aggressive; pathology; patient'... |
| LDH | Lactic Acid(Lactate) De-Hydrogenase; À¯¼öÅ»¼ö¼ÒÈ¿¼Ò ; < 370 Unit Áõ°¡ÇÏ´Â °æ¿ì ... |
| LA | DL-lactic acid |
|---|---|
| LAB | Lactic Acid Bacteria |
| LDH | Lactic acid dehydrogenase |
| PLGA | Poly(lactic-co-glycolic acid |
| P-L-LA | Poly(L-lactic acid |
| ¿µ¹® | deoxyribonucleic acid (DNA) | ÇÑ±Û | µ¥¿Á½Ã¸®º¸ÇÙ»ê |
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| ¼³¸í | ÇÙ»êÀÇ ÀÏÁ¾À¸·Î DNA¶ó°íµµ ÇÑ´Ù. DeoxyribonucleotideÀÇ ÁßÇÕüÀ̸ç À¯ÀüÀÚÀÇ ÈÇÐÀû º»Ã¼ÀÌ´Ù. RNA¹ÙÀÌ·¯½º ÀÌ¿ÜÀÇ ¸ðµç »ý¹°Àº DNA¸¦ À¯ÀüÀÚ·Î Áö´Ï°í ÀÖ´Ù. µð¿Á½Ã¸®º¸´ºÅ¬·¹¿ÀƼµå(deoxyribonucleotide)´Â ¿°±â¿Í ´ç(2'-deoxy-D-ribose)°ú ÀλêÀ¸·Î ÀÌ·ç¾îÁø´Ù. ¿°±â´Â ¾Æµ¥´Ñ(adenine), ±¸¾Æ´Ñ(guanine), Ƽ¹Î(thymine)¹× ½ÃÅä½Å(cytosine)ÀÇ 4°¡ÁöÀ̸ç, À̰ÍÀº ´ç¿¡ ºÎÂøµÇ¾î ÀÖ´Ù. ÀÎ»ê ¿ª½Ã ´çÀÇ ÇÑ ºÎºÐ¿¡ ºÎÂøµÇ¾î ÀÖ´Ù. ÀÌ deoxyribonucleotideÀÇ ´çÀº ´Ù¸¥ deoxy- ribonucleotideÀÇ ´ç°ú ÀλêÀ» »çÀÌ¿¡ ³õ°í °áÇÕÀ» ÇÏ°Ô µÇ¾î ÇϳªÀÇ ±ä »ç½½À» Çü¼ºÇÏ°Ô µÈ´Ù. Áï ´ç°ú ÀλêÀÌ ÁÖÃàÀÌ µÇ¾î¼ deoxyribonucleotideÀÇ ±ä »ç½½À» ¸¸µç´Ù. ÀÌ deoxyribonucleotideÀÇ »ç½½ µÎ °³´Â °¢°¢ deoxyribonucleotide¿¡ ºÎÂøµÇ¾î ÀÖ´Â ¿°±âµéÀÌ °áÇÕÀ» ÇÏ¿© µÎ °³ÀÇ »ç½½ÀÌ °áÇյǾî ÀÖ´Â ÀÌÁß³ª¼± ±¸Á¶¸¦ ¸¸µé°Ô µÈ´Ù. 4°¡Áö ¿°±â ¾Æµ¥´ÑÀº Ƽ¹Î°ú °áÇÕÀ» Çϰí, ½ÃÅä½Å°ú °áÇÕÀ» ÇÏ°Ô µÈ´Ù. Áï ´ç°ú ÀλêÀº ±ä »ç½½À» ¸¸µå´Â ¿ªÇÒÀ» ÇÏ°í ±ä »ç½½¿¡ ºÎÂøµÈ ¿°±âµéÀÇ °áÇÕ¿¡ ÀÇÇØ¼ µÎ °³ÀÇ ±ä »ç½½Àº ¼·Î ºÙ¾î¼ ÀÌÁß³ª¼± ±¸Á¶¸¦ ¸¸µç´Ù. DNAÀÇ À¯ÀüÁ¤º¸´Â ¿°±â¿¡ ÀúÀåµÈ´Ù. 4°³ÀÇ ¿°±âÀÇ Á¶ÇÕ°ú ¹è¿ÀÌ À¯ÀüÁ¤º¸¸¦ º¸°üÇÏ´Â ÇϳªÀÇ ¾ÏÈ£ ¿ªÇÒÀ» ÇàÇÏ°Ô µÈ´Ù. |
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| ¿µ¹® | retinoic acid | ÇÑ±Û | ·¹Æ¼³ë»ê |
|---|---|---|---|
| ¼³¸í | C20H28O2. ºñŸ¹Î AÀÇ ¾ËÄڿñ⸦ ¾Ëµ¥È÷µå·Î »êÈÇÑ ÈÄ ´Ù½Ã Ä«¸£º¹½Ç»êÀ¸·Î »êÈÇÏ¿© ¾òÀº »ê. ¹ß»ýÁßÀÇ ¼¼Æ÷¿¡ ÀÛ¿ëÇÏ¿© ÇüŸ¦ ¸¸µå´Âµ¥ °ü¿©ÇÑ´Ù. |
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| ¿µ¹® | ribonucleic acid | ÇÑ±Û | ¸®º¸ÇÙ»ê |
|---|---|---|---|
| ¼³¸í | Ribonucleotide monomer·Î ÀÌ·ç¾îÁø ÇÙ»êÀ¸·Î ¿°±â, ´ç, ÀλêÀ¸·Î ±¸¼ºµÈ´Ù. ¿°±â´Â adenine, guanine, cytosine, uracilÀÇ 4Á¾·ù°¡ ÀÖÀ¸¸ç, ´çÀº 5ź´çÀÌ´Ù. RNA´Â DNA¸¦ ÁÖÇüÀ¸·Î ÇÏ¿© »óº¸ÀûÀ¸·Î °áÇÕ, Çü¼ºµÇ¸ç ´Ü¹éÁúÀ» ¸¸µé¾î³»´Â µ¥¿¡ ÀÖ¾î Áß¿äÇÑ ¿ªÇÒÀ» ÇÑ´Ù. Àü·É RNA(mRNA)´Â ´Ü¹éÁú ÇÕ¼º¿¡ ÀÖ¾î °¡Àå ±âº»ÀÌ µÇ´Â DNAÀÇ ¼¿À» »óº¸ÀûÀ¸·Î ¿Å°Ü ¹Þ¾Æ Àü´ÞÇÏ´Â Àü·É±¸½ÇÀ» ÇÏ´Â RNA. ¸®º¸¼Ø RNA(rRNA) ¸®º¸¼ØÀ» Çü¼ºÇÏ´Â 4°¡Áö RNA»ç½½(28S, 18S, 5.8S, 5S·Î ±¸¼º). Àü´Þ RNA(tRNA) ƯÁ¤ ¾Æ¹Ì³ë»êÀ» ÇÑÂÊ ³¡¿¡ Áö´Ï°í »óº¸Àû ¼¿ÀÇ mRNA¿Í ÀϽÃÀû °áÇÕÀ» ÀÌ·ç¸ç ´Ü¹éÁú ÇÕ¼º¿¡ Á÷Á¢ ±â¿©ÇÏ´Â RNAÀÌ´Ù. |
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| ¿µ¹® | acid | ÇÑ±Û | »ê |
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| ¼³¸í | ¹°¿¡ ³ì¾ÒÀ» ¶§ ÀÌ¿ÂÈÇÏ¿© ¼ö¼Ò ÀÌ¿ÂÀ» ¸¸µå´Â ¹°Áú. ½Å¸ÀÀÌ ³ª°í û»ö ¸®Æ®¸Ó½º Á¾À̸¦ ºÓ°Ô º¯È½ÃŰ¸ç ¿°±â¿ÍÀÇ ÁßÈ ¹ÝÀÀ¿¡ ÀÇÇÏ¿© ¹°°ú ¿°À» ¸¸µé°í ÀÌ¿ÂÈ ¿¿¡¼ ¼ö¼Òº¸´Ù ¾Õ¿¡ ÀÖ´Â ±Ý¼Ó°ú ¹ÝÀÀÇÏ¿© ¿°À» ¸¸µé¸é¼ ¼ö¼Ò¸¦ ¹ß»ý½ÃŲ´Ù. ¼ö¼Ò ¿øÀÚ¸¦ ÀÌ¿ÂÈÇÏ´Â ÈûÀÇ °¾à¿¡ µû¶ó °»ê°ú ¾à»êÀ¸·Î ³ª´¶´Ù. |
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| ¿µ¹® | acetic acid | ÇÑ±Û | ¾Æ¼¼Æ®»ê, ÃÊ»ê |
|---|---|---|---|
| ¼³¸í | ºÐÀÚ½ÄÀº C2H4O2, ºÐÀÚ·® 60.05ÀÇ Àú±Þ Áö¹æ»êÀÌ´Ù. CH3COOHÀÇ ±¸Á¶½ÄÀ» °¡Áø ¹«»ö¾×ü·Î 16.7¡É¿¡¼ ³ì°í 118.0¡É¿¡¼ ²ú´Â´Ù. ½ÄÃÊÀÇ ½Å¸ÀÀ» ³»´Â °ÍÀ̰í, ³óÃàµÈ °ÍÀ» ºùÃÊ»êÀ̶ó ÇÑ´Ù. »ó¿Â¿¡¼´Â ¾×üÀÌ¸ç ¼ö¿ë¾×Àº ¾à»ê¼ºÀÌ´Ù. »ýü³»¿¡¼´Â ÀϹÝÀûÀ¸·Î ¾Æ¼¼Æ¿ CoA·Î Á¸ÀçÇÏ¸ç ¾Æ¼¼Æ¿±âÀÇ °ø±Þ¿øÀÌ µÇ´Â ¿Ü¿¡ Áö¹æ»êÀ̳ª ½ºÅ×·ÎÀÌµå µîÀÇ »ý¼ºÀç·á·Î Áß¿äÇÏ´Ù. ¾Æ¼¼Æ¿ CoA·ÎºÎÅÍ´Â ÄÉÅæÃ¼°¡ ÇÕ¼ºµÇ¸ç Á¶Á÷ÀÇ ¿¡³ÊÁö¿øÀÌ µÈ´Ù. |
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| lactic acid | A byproduct of carbohydrate metabolism (anaerobic metabolism). A lactic acid level may be measured in the bloodstream in conditions of metabolic acidosis. Lactic acid is an intermediate product of carbohydrate metabolism and is derived mainly from muscle cells and red blood cells. Exercise will normally raise lactic acid levels. Conditions of oxygen deprivation (for example shock, heart failure, lung disease) will trigger anaerobic metabolism within muscle tissue resulting in lactic acid build up in the tissues. Normal lactic acid levels are 4.5 to 19.8 mg/dl. (25 Jun 1999) |
|---|---|
| lactic acid bacillus | A member of the genus Lactobacillus. (05 Mar 2000) |
| lactic acid bacteria | <microbiology> A group of Gram-positive, non-sporing bacteria which carry out a lactic acid fermentation of sugars. It includes species of Lactobacillus, Leuconostoc, Pediococcus and Streptococcus. See: lactic acid fermentation. (25 Jun 1999) |
| lactic acid dehydrogenase | <enzyme> An enzyme with 5 forms: LDH-1 is in the heart, its blood level can rise when heart muscle is damaged. Other forms can be found in the liver, brain, kidney, skeletal muscle and bone. A useful blood test in the evaluation of many disease processes, including heart attack, liver disease, muscular dystrophy and bone disease. (27 Sep 1997) |
| lactic acid fermentation | <biochemistry> A type of fermentation carried out by lactic acid bacteria in which sugar (for example lactose, glucose, pentose) are converted either entirely (or almost entirely) to lactic acid (homolactic fermentation) or to a mixture of lactic acid and other products (heterolactic fermentation). (09 Oct 1997) |
| lactic acid level | <investigation> A test that measures the amount of lactic acid in the blood. (25 Jun 1999) |
| lactic acid oxidative decarboxylase | A flavoprotein oxidoreductase catalyzing oxidation (with O2) of l-lactate to acetate plus CO2 and water. Synonym: lactic acid oxidative decarboxylase. (05 Mar 2000) |
| lactic acidemia | The presence of dextrorotatory lactic acid in the circulating blood. Synonym: lactacidemia. Origin: Lactic acid + G. Haima, blood (05 Mar 2000) |
| lactic acidosis | <biochemistry, physiology> Acidosis caused by accumulation of lactic acid more rapidly than it can be metabolised. It may occur spontaneously or in association with diseases such as diabetes mellitus, leukaemia, or liver failure. (25 Jun 1999) |
| lactic | <physiology> Of or pertaining to milk; procured from sour milk or whey; as, lactic acid; lactic fermentation, etc. <biochemistry, physiology> Lactic acid, a sirupy, colourless fluid, soluble in water, with an intensely sour taste and strong acid reaction. There are at least three isomeric modifications all having the formula C3H6O3. Sarcolactic or paralactic acid occurs chiefly in dead muscle tissue, while ordinary lactic acid results from fermentation. The two acids are alike in having the same constitution (expressed by the name ethylidene lactic acid), but the latter is optically inactive, while sarcolactic acid rotates the plane of polarization to the right. The third acid, ethylene lactic acid, accompanies sarcolactic acid in the juice of flesh, and is optically inactive. Lactic ferment, an organised ferment (Bacterium lacticum or lactis), which produces lactic fermentation, decomposing the sugar of milk into carbonic and lactic acids, the latter, of which renders the milk sour, and precipitates the casein, thus giving rise to the so-called spontaneous coagulation of milk. Lactic fermentation. See Fermentation. Origin: L. Lac, lactis, milk: cf. F. Lactique. See Lacteal, and cf. Galactic. Source: Websters Dictionary (01 Mar 1998) |
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| lactic dehydrogenase | <enzyme> The enzyme that catalyses the formation and removal of lactate according to the equation: pyruvate + NADH = lactate NAD. <cell culture> The appearance of lactic dehydrogenase in the medium is often usedas an indication of cell death and the release of cytoplasmic constituents. Acronym: LDH (25 Jun 1999) |
| Rambourg's chromic acid-phosphotungstic acid stain | <technique> A stain for glycoproteins, used with an electron microscope, with which ultrathin tissue sections reveal complex carbohydrates in the same locations as shown by Rambourg's periodic acid-chromic methenamine-silver stain. (05 Mar 2000) |
| a1-acid glycoprotein | <biology> Plasma protein of mammals and birds, 38% carbohydrate. In humans a single chain glycoprotein of 39 kD. Increased levels are associated with inflammation, pregnancy and various diseases. (18 Nov 1997) |
| abscisic acid | <biochemistry> A lipid hormone that inhibits cell growth in plants, it is associated with fruit drop, leaf death and seed dormancy. It is synthesised in the plastids from carotenoids. This hormone helps plants deal with water loss, and its effects can be reversed with gibberellins. (06 May 1997) |
| abscisic acid 8'-hydroxylase | <enzyme> Catalyses conversion of abscisic acid to 8'-hydroxyabscisic acid, which rearranges to phaseic acid Registry number: EC 1.14.99.- Synonym: aba 8'-hydroxylase (26 Jun 1999) |
| acetic acid | <chemical> The acid most commonly associated with vinegar, it is the most commercially important organic acid and is used to manufacture a wide range of chemical products, such as plastics and Acetobacter but, except for making vinegar, is usually made through synthetic processes. Derivatives of acetic acid which may be formed by substitution reactions. Mono- and di-substituted, as well as, halogenated compounds have been synthesised. Experimentally, alpha- and n2- substituted acetic acids have been examined for their anti-inflammatory activity and effect on the central nervous system respectively. Additionally, limited exposure data has been collected on dibromo and dichloroacetic acids to determine whether they pose health effects. Synonym: ethanoic acid. (26 Jun 1999) |
| acetoacetic acid | CH3COCH2COOH;one of the ketone bodies, formed in excess and appearing in the urine in starvation or diabetes. Synonym: diacetic acid. (05 Mar 2000) |
| acetohydroxamic acid | C2H5NO2; N-Hydroxyacetamide;an inhibitor of urease, used as adjunctive therapy in chronic urea-splitting urinary infections. (05 Mar 2000) |
| acetrizoic acid | <chemical> A water-soluble, iodinated radiographic contrast medium, used as sodium acetrizoate in hysterosalpingography. Pharmacological action: contrast media. Chemical name: Benzoic acid, 3-(acetylamino)-2,4,6-triiodo- (12 Dec 1998) |
| acetylsalicylic acid | <drug> An odourless, white, slightly bitter drug used to reduce pain, fever, inflammation and sometimes to prevent blood clotting. Also called aspirin. Some people cannot tolerate it because it can cause stomach bleeding, however. It is soluble in both water and alcoholand melts at 132 to 136 degrees C. (06 May 1997) |
| acetyltannic acid | An astringent used for treatment of diarrhoea. Synonym: diacetyltannic acid, tannylacetate. (05 Mar 2000) |
| acid | <chemical, chemistry> A fundamental category of many compounds whose water-based solutions have a sour taste, turn blue litmus paper red and can combine with metals to form salts. They are chemical compounds which yield hydrogen ions or protons when dissolved in water, whose hydrogen can be replaced by metals or basic radicals, or which react with bases to form salts and water (neutralization). An extension of the term includes substances dissolved in media other than water. Specific types of acids include: Arrhenius acid: any chemical that increases the number of free hydrogen ions (H+) when added to a water-based solution. The more free hydrogens produced, the stronger the acid. Bronsted or Bronsted-Lowry acid: any chemical that acts as a proton donor in a chemical reaction. Lewis acid: any chemical that accepts two electrons to form a covalent bond during a chemical reaction. (13 Nov 1997) |
| acid agglutination | The clumping together of certain microorganisms at high hydrogen ion concentration. (05 Mar 2000) |
| acid anhydride hydrolases | <enzyme> A group of enzymes that catalyze the hydrolysis of diphosphate bonds in compounds such as nucleoside di- and tri-phosphates, and sulfonyl-containing anhydrides such as adenylylsulfate. (enzyme nomenclature, 1992). Registry number: EC 3.6 (12 Dec 1998) |
Synonyms : Acid, Lactic
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| lactic acid |
a clear odorless hygroscopic syrupy carboxylic acid found in sour milk and in many fruits
Ãâó: wordnet.princeton.edu/perl/webwn
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|---|---|
| lactic acid |
Lactic acid (α-hydroxypropionic acid) is a chemical compound that plays a role in several biochemical processes. It is the acid that gives old milk its sour taste, and it accumulates in skeletal muscles during extensive anaerobic exercise, causing temporary muscle pain. Lactic acid is quickly removed from muscles when they resume aerobic metabolism. Delayed onset muscle soreness usually becomes apparent more than 24 hours after exercising and is not caused by lactic acid buildup. ...
Ãâó: en.wikipedia.org/wiki/Lactic_acid
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| lactic acid bacteria |
Lactobacillus is a genus of Gram-positive facultative bacteria, named as such because most of its members convert lactose and other simple sugars to lactic acid. They are common and usually benign -- indeed, necessary -- inhabitants of the bodies of humans and other animals - for example, they are present in the gastrointestinal tract and the vagina. Many species are prominent in decaying plant material. ...
Ãâó: en.wikipedia.org/wiki/Lactic_acid_bacteria
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| lactic acid |
an acid produced by glucose-burning cells when these cells have an insufficient supply of oxygen
Ãâó: www.american-depot.com/services/resources_gl_l.asp
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| lactic acidosis |
High levels of lactic acid in the blood, which is potentially fatal. Symptoms include nausea, vomiting, fatigue, and shortness of breath. The use of nucleoside analogs can contribute to lactic acidosis.
Ãâó: www.amfar.org/cgi-bin/iowa/bridge.html
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| LACTIC ACID | a clear odorless hygroscopic syrupy carboxylic acid found in sour milk and in many fruits |
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