| AG | 1) Amino-Glycoside 2) Anion Gap - Anion Gap |
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| AG | abdominal girth; agarose; aminoglutethimide; analytical grade; anion gap; antigen; antiglobulin; ant... |
| AE | above-elbow [amputation]; acrodermatitis enteropathica; activation energy; adult erythrocyte; advers... |
| CN- | cyanide anion |
| HPAC | high-performance anion-exchange chromatography; hypothalamo-pituitary-adreno-cortical |
| AG | Anion gap |
|---|---|
| AE | Anion exchange |
| AE | Anion exchanger |
| AE1 | Anion exchanger 1 |
| HPAEC-PAD | High performance anion exchange chromatography with pulsed amperometric detection |
| anion gap | <biochemistry> The difference between the sum of the measured cations and anions in the plasma or serum calculated as follows: (Na + K) -(Cl + HCO3) = < 20 mmol/l. Elevated values may occur in diabetic or lactic acidosis; normal or low values occur in bicarbonate-losing metabolic acidoses. Synonym: cation-anion difference. (05 Mar 2000) |
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| ambident anion | <chemistry> A group of atoms that carry an overall negative charge and which can donate electrons to electron acceptors such as metal atoms. (09 Oct 1997) |
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| anion | A negatively-charged ion. (09 Oct 1997) |
| anion exchange | The process by which an anion in a mobile (liquid) phase exchanges with another anion previously bound to a solid, positively charged phase, the latter being an anion exchanger. It takes place when Cl- is exchanged for OH- in desalting. The reaction is Cl- (in solution) + (OH- on anion exchanger+) → (Cl- on anion exchanger) + OH- (in solution); combined with cation exchange, NaCl is removed from solution. Anion exchange may also be used chromatographically, to separate anions, and medicinally, to remove an anion (e.g., Cl-) from gastric contents or bile acids in the intestine. (05 Mar 2000) |
| anion exchanger | Family of Integral membrane proteins that perform the exchange of chloride and bicarbonate across the plasma membrane. Best known is Band III protein of the red blood cell. (18 Nov 1997) |
| anion exchange resin | <chemistry> A resin with fixed cationic groups which is used in chromatography to separate anionic molecules. A High molecular weight, insoluble polymers that contain functional anionic groups capable of undergoing exchange reactions. These resins are used for ion exchange chromatography, as gastric antacids, hypocholesteraemics, etc. (14 Aug 2000) |
| cation-anion difference | <biochemistry> The difference between the sum of the measured cations and anions in the plasma or serum calculated as follows: (Na + K) -(Cl + HCO3) = < 20 mmol/l. Elevated values may occur in diabetic or lactic acidosis; normal or low values occur in bicarbonate-losing metabolic acidoses. Synonym: cation-anion difference. (05 Mar 2000) |
| superoxide anion | <chemistry> A harmful derivative of oxygen capable of oxidative destruction of cell components. (09 Oct 1997) |
| air-bone gap | The difference between the threshold for hearing acuity by bone conduction and by air conduction. (05 Mar 2000) |
| air-gap radiography | Chest radiography with a space (at least 10 inches) between the subject and film. Instead of using a grid, this method uses the geometry and X-ray absorption by the air to remove scattered radiation. (05 Mar 2000) |
| air-gap technique | Chest radiography performed using a space between the subject and film instead of a grid to absorb scattered radiation; usually requires a target-film distance of 10 feet. (05 Mar 2000) |
| auscultatory gap | The period during which Korotkoff sounds indicating true systolic pressure fade away and reappear at a lower pressure point; responsible for errors made in recording falsely low systolic blood pressure, especially in hypertensive patients, of up to 25 mm Hg, and avoided by pumping the cuff 30 mm Hg beyond palpable systolic pressure. Synonym: silent gap. (05 Mar 2000) |
| Bochdalek's gap | A triangular area in the diaphragm near the lateral arcuate ligament that is devoid of muscle fibres; it is covered by pleura superiorly and by peritoneum inferiorly. Synonym: Bochdalek's gap, trigonum lumbocostale. (05 Mar 2000) |
| gap | A space in between two of the same objects, where part of a chain or object is missing, or where certain activities, processes, or events are lacking. A period of time characterised by a lack of activity, in between two events or within a continuous process. <genetics, molecular biology> A gap is a spot on a strand of DNA or RNA where a nucleotide or a segment of nucleotides is missing. (09 Oct 1997) |
| gap 1 | In the somatic cell cycle, the gap that follows mitosis and is followed by synthesis in preparation for the next cycle. (05 Mar 2000) |
| GAP-1 receptor tyrosine kinase | <enzyme> Similar to rasGTPase-activating proteins; inhibits signaling activity of let-60; amino acid sequence given in first source Registry number: EC 2.7.1.- Synonym: gap-1 gene product, gap-1 protein (26 Jun 1999) |
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