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 mondofacto - Online Medical Dictionary
Category: Health and Medicine > Medical Dictionary
Date & country: 26/01/2008, UK
Words: 116197


tyropanoate
<chemical> Sodium 3-butyramido-alpha-ethyl-2,4,6-triiodohydro-cinnamate. A diagnostic aid as a radiopaque medium in cholecystography. ... Pharmacological action: contrast media. ... Chemical name: Benzenepropanoic acid, alpha-ethyl-2,4,6-triiodo-3-((1-oxobutyl)amino)- ... (12 Dec 1998) ...

tyropanoate sodium
3-Butyramido-alpha-ethyl-2,4,6-triiodohydrocinnamic acid, sodium salt;an oral contrast medium for cholecystography. ... (05 Mar 2000) ...

Tyrophagus putrescentiae
One of the grain mite species that cause various forms of dermatitis resulting from infestation by grain mites in food and produce, which sensitises and causes dermatitis in storage and handling personnel. ... Synonym: Tyroglyphus longior. ... Origin: G. Tyros, cheese, + phago, to eat ... (05 Mar 2000) ...

tyrosin
<physiology> A white crystalline nitrogenous substance present in small amount in the pancreas and spleen, and formed in large quantity from the decomposition of proteid matter by various means, as by pancreatic digestion, by putrefaction as of cheese, by the action of boiling acids, etc. Chemically, it consists of oxyphenol and amidopropioni …

tyrosinaemia
A disorder consisting of elevated blood concentrations of tyrosine, enhanced urinary excretion of tyrosine and tyrosyl compounds, hepatosplenomegaly, nodular cirrhosis of the liver, multiple renal tubular reabsorptive defects, and vitamin D-resistant rickets; autosomal recessive inheritance. ... Synonym: hypertyrosinaemia. ... Origin: tyrosine + G. H …

tyrosinase
<enzyme> A copper containing protein (a monoxygenase) that catalyses the oxidation of tyrosine and sets in train spontaneous reactions that yield melanin, the black pigment of skin, hair and eyes. The first intermediate is 3, 4 dihydroxyphenylalanine (DOPA). Lack of tyrosinase activity is responsible for albinism. ... (18 Nov 1997) ...

tyrosine
<amino acid> One of the twenty amino acids directly coded in proteins. Nonessential in humans since can be synthesised from phenylalanine. ... (18 Nov 1997) ...

tyrosine 3-monooxygenase
<enzyme> An enzyme that catalyses the conversion of l-tyrosine, tetrahydrobiopterin, and oxygen to 3,4-dihydroxy-l-phenylalanine, dihydrobiopterin, and water. ... Chemical name: L-Tyrosine,tetrahydrobiopterin:oxygen oxidoreductase (3-hydroxylating) ... Registry number: EC 1.14.16.2 ... (12 Dec 1998) ...

tyrosine aminotransferase
<enzyme> An enzyme that catalyses the reversible reaction of l-tyrosine and alpha-ketoglutarate producing p-hydroxyphenylpyruvate and l-glutamate; this enzyme catalyses a step in l-phenylalanine and l-tyrosine catabolism; a deficiency of this enzyme is associated with tyrosinaemia II. ... Synonym: tyrosine transaminase. ... (05 Mar 2000) ...

tyrosine decarboxylase
<enzyme> A pyridoxal-phosphate protein that catalyses the conversion of l-tyrosine to tyramine and carbon dioxide. The bacterial enzyme also acts on 3-hydroxytyrosine and, more slowly, on 3-hydroxyphenylalanine. ... Chemical name: L-Tyrosine carboxy-lyase ... Registry number: EC 4.1.1.25 ... (12 Dec 1998) ...

tyrosine hydroxylase
<enzyme> Enzyme required for the synthesis of the neurotransmitters noradrenaline and dopamine. ... (18 Nov 1997) ...

tyrosine iodinase
A postulated enzyme in the thyroid catalyzing iodination of tyrosine, a reaction important in the eventual biosynthesis of thyroxine. ... See: peroxidases. ... (05 Mar 2000) ...

tyrosine kinase
<enzyme> Kinases that phosphorylate protein tyrosine residues. These kinases play major roles in mitogenic signalling and can be divided into two subfamilies: receptor tyrosine kinases, that have an extracellular ligand binding domain, a single transmembrane domain and an intracellular tyrosine kinase domain and nonreceptor tyrosine kinases, …

tyrosine N-monooxygenase
<enzyme> Catalyses the n-hydroxylation of l-tyrosine to n-hydroxytyrosine ... Registry number: EC 1.14.13.41 ... Synonym: tyrosine n-hydroxylase, haemthiolate enzyme, cytochrome p450(tyr), cyp79 protein ... (26 Jun 1999) ...

tyrosine phenol-lyase
<enzyme> An enzyme that catalyses the cleavage of tyrosine to phenol, pyruvate, and ammonia. It is a pyridoxal phosphate protein. The enzyme also forms pyruvate from d-tyrosine, l-cysteine, s-methyl-l-cysteine, l-serine, and d-serine, although at a slower rate. ... Chemical name: L-Tyrosine phenol-lyase (deaminating) ... Registry number: EC 4.1 …

tyrosine phosphorylation
Synonym for tyrosine kinase ... <enzyme> Kinases that phosphorylate protein tyrosine residues. These kinases play major roles in mitogenic signalling and can be divided into two subfamilies: receptor tyrosine kinases, that have an extracellular ligand binding domain, a single transmembrane domain and an intracellular tyrosine kinase domain and …

tyrosine transaminase
<enzyme> An enzyme that catalyses the conversion of l-tyrosine and 2-oxoglutarate to 4-hydroxyphenylpyruvate and l-glutamate. It is a pyridoxal-phosphate protein. L-phenylalanine can act instead of l-tyrosine. The mitochondrial enzyme may be identical with aspartate transaminase (ec 2.6.1.1.). ... Chemical name: L-Tyrosine:2-oxoglutarate amino …

tyrosine-ester sulfotransferase
<enzyme> Also acts on phenols and organic hydroxylamines ... Registry number: EC 2.8.2.9 ... Synonym: arylsulfotransferase iv ... (26 Jun 1999) ...

tyrosine-repressible transaminase
<enzyme> From E coli; catalyses the amination of 2-ketoisocaproate to leucine; encoded by tyrb; a functional leuabcd operon is required for leucine synthesis by this enzyme ... Registry number: EC 2.6.1.- ... Synonym: transaminase d, tyrosine-2-ketoisocaproate aminotransferase ... (26 Jun 1999) ...

tyrosine-tRNA ligase
<enzyme> An enzyme that activates tyrosine with its specific transfer RNA. ... Chemical name: L-Tyrosine:tRNA-(Tyr) ligase (AMP-forming) ... Registry number: EC 6.1.1.1 ... (12 Dec 1998) ...

tyrosinosis
A very rare, possibly heritable disorder of tyrosine metabolism that may be caused by defective formation of p-hydroxyphenylpyruvic acid oxidase or of tyrosine transaminase; characterised by enhanced urinary excretion of p-hydroxyphenylpyruvic acid and of other tyrosyl metabolites upon ingestion of tyrosine or proteins containing that amino acid.
tyrosinuria
The excretion of tyrosine in the urine. ... Origin: tyrosine + G. Ouron, urine ... (05 Mar 2000) ...

tyrosis
Synonym: tyremesis, caseation. ... Origin: G. Tyros, cheese ... (05 Mar 2000) ...

tyrosyl aminopeptidase
<enzyme> Preferentially cleaves tyrosine residues from the n-terminus of peptides; also hydrolyses dipeptides having an n-terminal tyrosine and a hydrophobic carboxy-terminal amino acid ... Registry number: EC 3.4.11.- ... Synonym: tyrosyl-aminopeptidase, tyr-ap ... (26 Jun 1999) ...

tyrosyl tRNA synthetase kinase
<enzyme> From postribosomal supernatants of bom:nmri mouse liver; comigrates with tyrosyl tRNA synthetase during several purification steps ... Registry number: EC 2.7.1.- ... Synonym: tyr tRNA synthetase kinase ... (26 Jun 1999) ...

tyrosyltubulin ligase
<enzyme> Catalyses reversible, post-translational addition of tyrosine, phenylalanine or dopa to carboxyl terminal of alpha-chain of tubulin ... Registry number: EC 6.3.2.- ... Synonym: tubulin-tyrosine ligase, tyrosyl tubulin ligase ... (26 Jun 1999) ...

tyrosyluria
Enhanced urinary excretion of certain metabolites of tyrosine, such as p-hydroxyphenylpyruvic acid; present in tyrosinosis, scurvy, pernicious anaemia, and other diseases. ... (05 Mar 2000) ...

tyrothricin
<chemical> A polypeptide antibiotic mixture obtained from bacillus brevis. It consists of a mixture of three tyrocidines (60%) and several gramicidins (20%) and is very toxic to blood, liver, kidneys, meninges, and the olfactory apparatus. It is used topically. ... Pharmacological action: anti-infective agents, local, antibiotics, peptide. ... …

tyrotoxism
Poisoning by cheese or any milk product. ... Origin: G. Tyros, cheese, + toxikon, poison ... (05 Mar 2000) ...

Tyrrell, Frederick
<person> English anatomist and surgeon, 1797-1843. ... See: Tyrrell's fascia. ... (05 Mar 2000) ...

Tyrrell's fascia
Synonym for rectovesical septum ... A fascial layer that extends superiorly from the central tendon of the perineum to the peritoneum between the prostate and rectum. ... Synonym: septum rectovesicale, Denonvilliers' aponeurosis, rectovesical fascia, Tyrrell's fascia. ... (05 Mar 2000) ...

Tyson, Edward
<person> English anatomist, 1649-1708. ... See: Tyson's glands. ... (05 Mar 2000) ...

Tyson's glands
Synonym for preputial glands ... Sebaceous glands of the corona glandis and inner surface of the prepuce, which produce an odiferous substance called smegma. ... Synonym: glandulae preputiales, Tyson's glands. ... (05 Mar 2000) ...

Tyzzer's disease
An acute disease of many animal species (especially laboratory animals such as mice and rabbits) caused by the bacterium Bacillus piliformis and characterised by depression, diarrhoea, and sudden death. ... (05 Mar 2000) ...

Tyzzeria
A genus of coccidia (family Eimeriidae) in which the oocyst contains eight naked sporozoites. Important species are Tyzzeria anseris, a relatively nonpathogenic species found in the small intestine of domestic and wild geese, whistling swans, and certain wild ducks, and Tyzzeria perniciosa, which occurs in the small intestine of the domestic duck i …

Tzanck cells
Acantholytic epithelial cell's seen in the Tzanck test. ... (05 Mar 2000) ...

Tzanck test
The examination of fluid from a bullous lesion for Tzanck cells (altered epithelial cells, rounded and devoid of intercellular attachments). The periphery of these cells is basophilic and the nucleus is spherical and enlarged with prominent nucleoli. They are characteristic of lesions due to varicella, herpes zoster, herpes simplex, and pemphigus v …

Tzanck, Arnault
<person> Russian dermatologist, 1886-1954. ... See: Tzanck cells, Tzanck test. ... (05 Mar 2000) ...

U protein
<molecular biology> Hypothetical protein thought to regulate the transition of cells from G0 to G1 phase of the cell cycle and thus inevitably into S phase. The idea would be that the concentration of this unstable (u) protein would have to exceed a threshold level for triggering progression through the cycle and that this would only happen i …

U wave
A positive wave following the T wave of the electrocardiogram. ... (05 Mar 2000) ...

u-50488
<chemical> A nonpeptide kappa-opiod receptor agonist which has also been found to stimulate the release of adrenocorticotropin (acth) via the release of hypothalmic arginine vasopressin and corticitropin releasing factor. ... Pharmacological action: analgesics, non-narcotic, antihypertensive agents. ... (12 Dec 1998) ...

u-score method
An older, simpler, but somewhat less efficient method of linkage analysis than that by maximum likelihood estimation. ... (05 Mar 2000) ...

u1RNA
<molecular biology> A common form of RNA that is an element of small nuclear RNA (snRNA) in the nuclei of mammalian cell, it functions to splice in or remove exons of messenger RNA. ... (09 Oct 1997) ...

U6 nuclease
<enzyme> Responsible for the removal of uridylates (us) specifically from the u6 3' end of the u6 small nuclear RNA ... Registry number: EC 3.1.13.- ... (26 Jun 1999) ...

UAPA permease
<chemical> A uric acid-xanthine permease from aspergillus nidulans; 595 aa residues, mw 63.4 kD genbank x71807 ... Synonym: uapa protein, uapa gene product, uric acid-xanthine permease ... (26 Jun 1999) ...

UBC proteins
<protein> Family of proteins involved in conjugating ubiquitin to proteins. ... UBC1, UBC4 and UBC5 have a role in targeting proteins for degradation, but others have more complex roles, including an involvement in cell cycle control (UBC3) and the secretory pathway (UBC6). ... (18 Nov 1997) ...

ubihydroquinone
Synonym for ubiquinol ... The reduction product of a ubiquinone. ... Synonym: ubihydroquinone. ... (05 Mar 2000) ...

ubiquinol
The reduction product of a ubiquinone. ... Synonym: ubihydroquinone. ... (05 Mar 2000) ...

ubiquinol-cytochrome-c reductase
<enzyme> An 11-subunit enzyme complex that acts as an electron transferring protein in the mitochondrial respiratory chain. The enzyme complex catalyses the oxidation of ubiquinol to ubiquinone and ferrocytochrome c in the presence of ferricytochrome c. It contains cytochromes b-562, b-566, and c1 as well as an iron ferredoxin. ... Chemical na …

ubiquinone
<biochemistry> Small molecule with a hydrocarbon chain (usually of several isoprene units) that serves as an important electron carrier in the respiratory chain. ... The acquisition of an electron and a proton by ubiquinone produces ubisemiquinone a free radical), a second proton and electron convert this to dihydroubiquinone. Plastoquinone, w …

ubiquinone-10
Ubiquinone-50; coenzyme Q10;2,3-Dimethoxy-5-methyl-6-decaprenyl-1,4-benzoquinone. ... (05 Mar 2000) ...

ubiquinone-6
Ubiquinone-30; coenzyme Q6;2,3-Dimethoxy-5-methyl-6-hexaprenyl-1,4 benzoquinone. ... (05 Mar 2000) ...

ubiquitin
<protein> A protein (8.5 kD) found in all eukaryotic cells. Can be linked to the lysine side chains of proteins by formation of an amide bond to its C terminal glycine in an ATP requiring process. ... The protein/ubiquitin complex is subject to rapid proteolysis. Ubiquitin also has a role in the heat shock response. ... (18 Nov 1997) ...

ubiquitin carrier protein kinase
<enzyme> A 300 kD kinase consisting of 3 subunits of mws 70, 105 and 120; requires magnesium but inhibited by high concentration; from hela cells ... Registry number: EC 2.7.10.- ... (26 Jun 1999) ...

ubiquitin thiolesterase
<enzyme> Cleaves c-terminal enzyme s-ubiquitin and c-terminal adenosine 5'-phosphate ubiquitin; uch-8 is also available ... Registry number: EC 3.1.2.15 ... Synonym: ubiquitin c-terminal esterase, ubiquitin carboxy-terminal hydrolase, ubiquitin carboxy-terminal esterase, neuron-specific protein 9.5, pgp 9.5, protein gene product 9.5, uch-l3, ub …

ubiquitin-calmodulin ligase
<enzyme> Covalentyl links ubiquitin to bovine calmodulin in an ATP-dependent manner ... Registry number: EC 6.3.2.21 ... Synonym: ubiquityl-calmodulin synthetase ... (26 Jun 1999) ...

ubiquitin-Nalpha-protein hydrolase
<enzyme> Cleaves ubiquitin fusion proteins to release ubiquitin and the authentic protein; encoded by gene ubp1 from saccharomyces cerevisiae; amino acid sequence has been determined ... Registry number: EC 3.4.99.- ... Synonym: ualphap hydrolase, ubiquitin-conjugate peptidase, alpha-nh-ubiquitin protein endoprotease, ubiquitin-specific process …

ubiquitin-protein ligase
<enzyme> Consists of 3 enzymes; e1 is ubiquitin activating enzyme; e2 transfers activated ubiquitin as an enzyme-ubiquitin thiol ester to e3, which transfers ubiquitin to an intracellular protein; e1 forms both an enzyme-bound cooh-terminal ubiquitin thiolester and a cooh-terminal ubiquitin-adenylatte; ube1y is putative y function in spermato …

ubiquitinoylation
<biochemistry> The covalent addition of ubiquitin residues to proteins. Single or multiple residues can be added and bound ubiquitin can also be a site for further addition of ubiquitin residues. ... (18 Nov 1997) ...

ubiquity
1. Existence everywhere, or in places, at the same time; omnipresence; as, the ubiquity of God is not disputed by those who admit his existence. 'The arms of Rome . . . Were impeded by . . . The wide spaces to be traversed and the ubiquity of the enemy.' (C. Merivale) ... 2. The doctrine, as formulated by Luther, that Christ's glorified body is omni …

ubisemiquinone
Synonym for ubiquinone ... <biochemistry> Small molecule with a hydrocarbon chain (usually of several isoprene units) that serves as an important electron carrier in the respiratory chain. ... The acquisition of an electron and a proton by ubiquinone produces ubisemiquinone a free radical), a second proton and electron convert this to dihydroub …

uC
Symbol for microcoulomb. ... (05 Mar 2000) ...

uCi
Symbol for microcurie. ... (05 Mar 2000) ...

Udden-Wentworth scale
<plant biology> A geometric scale of grain sizes which classifies particles of siliciclastic sediment from 4096 millimetres (boulders) in size down to 0.00006 millimetres (clay). ... This scale is almost universally accepted by modern sedimentologists (a type of geologist). It was first proposed in 1898 by Udden and then modified and extended …

udder
1. <anatomy> The glandular organ in which milk is secreted and stored; popularly called the bag in cows and other quadrupeds. See Mamma. 'A lioness, with udders all drawn dry.' (Shak) ... 2. One of the breasts of a woman. 'Yon Juno of majestic size, With cowlike udders, and with oxlike eyes.' (Pope) ... Origin: OE. Uddir, AS. Uder; akin to D. U …

UDP
<abbreviation> Uridine 5'-diphosphate. ... (05 Mar 2000) ...

UDP acetylglucosamine-2-epimerase
<enzyme> Catalyses the formation of n-acetylmannosamine and udp from udp n-acetylglucosamine; minor descriptor (75-82); online and index medicus search carbohydrate isomerases (75-82); minor descriptor (75-82); file maintained to carbohydrate isomerases ... Registry number: EC 5.1.3.14 ... Synonym: udp acetylglucosamine 2 epimerase, udp n-acety …

UDP glucuronate pyrophosphatase
<enzyme> Udpga is converted to ump plus glucuronic acid-1-phosphate ... Registry number: EC 3.6.1.- ... Synonym: udp-glucuronic acid pyrophosphatase ... (26 Jun 1999) ...

UDP-galactopyranose mutase
<enzyme> Interconverts udp-galactopyranose to udp-galactofuranose; contains a flavin cofactor identified as flavin adenine dinucleotide ... Registry number: EC 5.4.99.9 ... (26 Jun 1999) ...

UDP-galactose hydrolase
<enzyme> Hydrolyzes udp-galactose to galactose ... Registry number: EC 3.1.4.- ... (26 Jun 1999) ...

UDP-GlcUA
Synonym for uridine diphosphoglucuronic acid ... Uridine diphosphoglucose in which the 6 CH2OH of the glucose has been oxidised to COOH (has become a glucuronyl residue); participates in the formation of conjugates of bilirubin or drugs such as aspirin. ... Acronym: UDPGA ... (05 Mar 2000) ...

UDPG
<abbreviation> Uridine diphosphoglucose. ... (05 Mar 2000) ...

UDPGal
Synonym for uridine diphosphogalactose ... A pyrophosphate group links the 5'-position of uridine and the 1 position of d-galactose. ... (05 Mar 2000) ...

UDPgalactose
Synonym for uridine diphosphogalactose ... A pyrophosphate group links the 5'-position of uridine and the 1 position of d-galactose. ... (05 Mar 2000) ...

UDPgalactose 4-epimerase
Synonym for udpglucose 4-epimerase ... <enzyme> A necessary enzyme in the metabolism of galactose. It reversibly catalyses the conversion of udpglucose to udpgalactose. NAD+ is an essential component for enzymatic activity. ... Chemical name: UDPglucose 4-epimerase ... Registry number: EC 5.1.3.2 ... (12 Dec 1998) ...

UDPGlc
<abbreviation> Uridine diphosphoglucose. ... (05 Mar 2000) ...

UDPglucose
Synonym for uridine diphosphoglucose ... A pyrophosphate group links the 5'-position of uridine and the 1-position of d-glucose; an intermediate in glycogen biosynthesis. ... Synonym: UDPglucose. ... Acronym: UDPG ... (05 Mar 2000) ...

udpglucose 4-epimerase
<enzyme> A necessary enzyme in the metabolism of galactose. It reversibly catalyses the conversion of udpglucose to udpgalactose. NAD+ is an essential component for enzymatic activity. ... Chemical name: UDPglucose 4-epimerase ... Registry number: EC 5.1.3.2 ... (12 Dec 1998) ...

UDPglucose pyrophosphatase
<enzyme> Acts on udpg to form uridine monophosphate and glucose-1-phosphate ... Registry number: EC 3.6.1.- ... (26 Jun 1999) ...

UDPglucuronate 4-epimerase
<enzyme> Uridine diphosphate glucuronic aid (77-82) is not an active mh ... Chemical name: udpgalacturonate 4-epimerase ... Registry number: EC 5.1.3.6 ... (26 Jun 1999) ...

UDPglucuronic acid cyclase
<enzyme> Forms udpapiose plus carbon dioxide ... Registry number: EC 4.1.1.- ... Synonym: udpglucuronic carboxy-lyase (cleaving, cyclizing) ... (26 Jun 1999) ...

UDPxylose
A pyrophosphate group links the 5' position of uridine and the 1-position of d-xylose; formed by the decarboxylation of UDPglucuronic acid; required for the synthesis of proteoglycans; inhibits UDPglucose dehydrogenase. ... (05 Mar 2000) ...

Uehlinger
E., Swiss pathologist, *1899. ... See: Meyenburg-Altherr-Uehlinger syndrome. ... (05 Mar 2000) ...

UFA
<abbreviation> Unesterified free fatty acid. ... (05 Mar 2000) ...

Uffelmann
Jules, German physician, 1837-1894. ... See: Uffelmann's reagent. ... (05 Mar 2000) ...

Uffelmann's reagent
To a 2% solution of phenol in water is added to aqueous ferric chloride until the solution becomes violet in colour; this turns lemon yellow in the presence of lactic acid, assumes an opaline tint in butyric acid, and is decolorised by hydrochloric acid. ... (05 Mar 2000) ...

ug
Symbol for microgram. ... (05 Mar 2000) ...

uganda
A republic in eastern africa, south of sudan and east of kenya. Its capital is kampala. In 1894 it was formally proclaimed a british protectorate but became independent in 1966. Its name is swahili, u, land + ganda, the name of its indigenous people, the land of the ganda. The origin of their name is unknown. ... (12 Dec 1998) ...

UGI
<abbreviation> Upper gastrointestinal series. ... (05 Mar 2000) ...

Uhl
Henry S.M., S. Internist, *1921. ... See: Uhl anomaly. ... (05 Mar 2000) ...

Uhl anomaly
Right ventricular myocardial aplasia, causing a dilated, thin-walled right ventricle without murmurs; death results in early childhood. ... (05 Mar 2000) ...

uhl disease
<radiology> Parchment right ventricle, focal or complete absence of RV myocardium ... (12 Dec 1998) ...

Uhthoff
Wilhelm, German ophthalmologist, 1853-1927. ... See: Uhthoff's sign, Uhthoff symptom. ... (05 Mar 2000) ...

Uhthoff symptom
A transient temperature-dependent numbness, weakness, or loss of vision. Conduction stops in any nerve if the temperature gets too high. In a damaged nerve, e.g., by demyelinization, this shutdown temperature is lowered, and may approach normal body temperature. Transient neurological dysfunction may then appear with a hot shower, exercise, or feve …

Uhthoff syndrome
Synonym for Uhthoff symptom ... A transient temperature-dependent numbness, weakness, or loss of vision. Conduction stops in any nerve if the temperature gets too high. In a damaged nerve, e.g., by demyelinization, this shutdown temperature is lowered, and may approach normal body temperature. Transient neurological dysfunction may then appear with …

Uhthoff's sign
Synonym for Uhthoff symptom ... A transient temperature-dependent numbness, weakness, or loss of vision. Conduction stops in any nerve if the temperature gets too high. In a damaged nerve, e.g., by demyelinization, this shutdown temperature is lowered, and may approach normal body temperature. Transient neurological dysfunction may then appear with …

ui RNA
<molecular biology> A common type of small nuclear RNA (165 bases long) that serves to splice and/or remove exons of messenger RNA. ... (09 Oct 1997) ...

UIP
<abbreviation> Usual interstitial pneumonia of Liebow. ... (05 Mar 2000) ...

ukambin
An African arrow poison from plants of the family Apocynaceae; a heart poison resembling digitalis or strophanthus in its action. ... (05 Mar 2000) ...

ul
Symbol for microliter. ... (05 Mar 2000) ...