| 영문 | blood-brain barrier(BBB) | 한글 | 혈뇌장벽 |
|---|---|---|---|
| 설명 | 뇌와 척수에는 혈류로부터 어떤 물질이 유입되는 것을 막는 장벽이다. 이것은 뇌와 척수에 존재하는 모세혈관의 투과성이 비교적 다른 모세혈관의 투과성보다 떨어지기 때문이다. |
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| 영문 | blood-brain barrier | 한글 | 혈액뇌장벽 |
|---|---|---|---|
| 설명 | 혈액으로부터 뇌로는 지질용해성이 높은 약물밖에 이행되지 않는다. 수용성의 약물을 뇌로 이행되지 않게 하고 있는 것이 혈액뇌장벽이며 뇌의 모세혈관 내피세포, 모세혈관 주위의 세포가 장벽이 되고 있다. 물질교환은 수동확산에 의해 이루어지지만, 뇌의 생리적 활동에 필요한 물질은 이온형이라도 담체를 통해 이행된다. |
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| BBB | 1) Bundle Branch Block 2) Blood Brain Barrier - Blood Brain Barrier |
|---|---|
| ALCAR | acetyl-L-carnitine |
| CPT | carnitine palmityl transferase; carotid pulse tracing; chest physiotherapy; child protection team; c... |
| MCD | magnetic circular dichroism; mast-cell degranulation; mean cell diameter; mean of consecutive differ... |
| SCD | scleroderma; service-connected disability; sickle-cell disease; spinocerebellar degeneration; subacu... |
| B | Barrier |
|---|---|
| BBB | Blood Bain Barrier |
| BRB | Blood Retinal Barrier |
| BAB | Blood-Aqueous Barrier |
| BTB | Blood-Testis Barrier |
mucosal bleeding (점막 출혈
| carnitine | <biochemistry> _ Hydroxy _ trimethyl aminobutyric acid. Compound that transports long chain fatty acids across the inner mitochondrial membrane in the form of acyl carnitine. Sometimes referred to as Vitamin Bt or Vitamin B7. (18 Nov 1997) |
|---|---|
| carnitine acyltransferases | <enzyme> Acyltransferases in the inner mitochondrial membrane that catalyze the reversible transfer of acyl groups from acyl-CoA to l-carnitine and thereby mediate the transport of activated fatty acids through that membrane. Registry number: EC 2.3.1.- (12 Dec 1998) |
| carnitine amidase | <enzyme> Hydrolyzes l-carnitine amide steroselectively Registry number: EC 3.5.1.- (26 Jun 1999) |
| carnitine coenzyme A ligase | <enzyme> Caic protein isolated from e. Coli Registry number: EC 6.2.1.- Synonym: carnitine CoA ligase, crotonobetaine CoA ligase, caic gene product (26 Jun 1999) |
| carnitine dehydratase | <enzyme> From E coli; catalyses the reversible dehydration of (l)-carnitine forming crotonobetaine Registry number: EC 4.2.1.- Synonym: caib protein, caib gene product (26 Jun 1999) |
| carnitine o-acetyltransferase | <enzyme> An enzyme that catalyses the formation of o-acetylcarnitine from acetyl-CoA plus carnitine. Chemical name: Acetyl-CoA:carnitine O-acetyltransferase Registry number: EC 2.3.1.7 (12 Dec 1998) |
| carnitine o-palmitoyltransferase | <enzyme> An enzyme that catalyses reversibly the conversion of palmitoyl-CoA to palmitoylcarnitine in the inner mitochondrial membrane. Chemical name: Palmitoyl-CoA:L-carnitine O-palmitoyltransferase Registry number: EC 2.3.1.21 (12 Dec 1998) |
| carnitine palmitoyltransferase | <enzyme> An enzyme that reversibly forms acylcarnitines and coenzyme A from carnitine and acylcoenzyme A (often, palmitoyl-CoA); important in fatty acid oxidation. Deficiency of isozyme I results in ketogenesis with hypoglycaemia; deficiency of isozyme II affects primarily skeletal muscle. (05 Mar 2000) |
| carnitine racemase | <enzyme> Homologous to enoyl hydratases and isomerases; converts d(+)-carnitine to l(-)-carnitine; isolated from e. Coli Registry number: EC 5.1.- Synonym: caid gene product (26 Jun 1999) |
| l-carnitine | <amino acid> Is a dipeptide - an amino acid made from two other aminos, methionine and lysine. It can be synthesised in the liver if sufficient amounts of lysine, B1, B6 and iron are available. Muscle and organ meat, fish and milk products are the best sources of carnitine in the diet. Carnitine has been shown to have a major role in the metabolism of fat and in the reduction of triglycerides by increasing fat utilisation. It transfers fatty acids across the membranes of the mitochondria where they can be utilised as sources of energy. It also increases the rate at which the liver uses fats. By preventing fatty build-up, this amino acid aids in weight loss and decreases the risk of heart disease. Carnitine has been shown to be deficient in hearts of patients who have died of acute myocardial infections. Muscular dystrophy and myotonic dystrophy have been shown to lead to carnitine loss in the urine and therefore higher requirements for it. Carnitine is stored primarily in the skeletal muscles and heart, where it is needed to transform fatty acids into energy for muscular activity. It is also concentrated in sperm and the brain. Many athletes have noted increased endurance and muscle building with carnitine supplementation. Deficiencies may increase symptoms of fatigue, angina, muscle weakness or confusion. A low level of Vitamin C will also result in apparent Carnitine deficiency. It is contraindicated for people with liver or kidney disease or diabetes It has proven helpful in improving lipid metabolism and reducing elevated total lipids, cholesterol and triglycerides in people with cardiac problems and diabetes, but should only be taken with medical supervision in these conditions. (25 Jun 1999) |
| barrier | An obstruction. (18 Nov 1997) |
| barrier contraceptive | A mechanical device designed to prevent spermatozoa from penetrating the cervical os; usually used in combination with a spermicidal agent, i.e., vaginal diaphragm. (05 Mar 2000) |
| blood-air barrier | The barrier between capillary blood and alveolar air comprising the alveolar epithelium and capillary endothelium with their adherent basement membranes and epithelial cell cytoplasm. Gaseous exchange occurs across this membrane. (12 Dec 1998) |
| blood-aqueous barrier | The anatomical mechanism that prevents exchange of materials between the chambers of the eye and the blood. The tight junctions of the nonpigmented epithelium of the ciliary body, the junctions of the iris tissues, and iris blood vessels constitute the blood-aqueous barrier. Lipid-soluble substances such as oxygen and carbon dioxide penetrate the barrier at a high rate. Sodium, larger water-soluble ions, proteins, and other large and medium-sized molecules are restricted. (12 Dec 1998) |
| blood-brain barrier | <pharmacology, physiology> A protective barrier formed by the blood vessels and glia of the brain. It prevents some substances in the blood from entering brain tissue. The blood vessels of the brain (and the retina) are much more impermeable to large molecules (like antibodies) than blood vessels elsewhere in the body. This has important implications for the ability of the organism to mount an immune response in these tissues, although the basis for the difference in endothelial permeability is not well understood. (16 Dec 1997) |
제품명 |
판매사 |
보험코드 | 성분/함량 | 구분/보험급여 |
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제품명 |
판매사 |
보험코드 | 성분/함량 | 구분/보험급여 |
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