Calcium에 대한 Mechanism_Of_Action 정보 Calcium plays a vital role in the anatomy, physiology and biochemistry of organisms and of the cell, particularly in signal transduction pathways. More than 500 human proteins are known to bind or transport calcium. The skeleton acts as a major mineral storage site for the element and releases Ca2+ ions into the bloodstream under controlled conditions. Circulating calcium is either in the free, ionized form or bound to blood proteins such as serum albumin. Parathyroid hormone (secreted from the parathyroid gland) regulates the resorption of Ca2+ from bone. Calcitonin stimulates incorporation of calcium in bone, although this process is largely independent of calcitonin. Although calcium flow to and from the bone is neutral, about 5 mmol is turned over a day. Bone serves as an important storage point for calcium, as it contains 99% of the total body calcium. Low calcium intake may also be a risk factor in the development of osteoporosis. The best-absorbed form of calcium from a pill is a calcium salt like carbonate or phosphate. Calcium gluconate and calcium lactate are absorbed well by pregnant women. Seniors absorb calcium lactate, gluconate and citrate better unless they take their calcium supplement with a full breakfast. The currently recommended calcium intake is 1,500 milligrams per day for women not taking estrogen and 800 milligrams per day for women on estrogen. There is close to 300 milligrams of calcium in one cup of fluid milk. Calcium carbonate is currently the best and least expensive form of calcium supplement available. Cyanocobalamin에 대한 Mechanism_Of_Action 정보 Vitamin B12 is used in the body in two forms: Methylcobalamin and 5-deoxyadenosyl cobalamin. The enzyme methionine synthase needs methylcobalamin as a cofactor. This enzyme is involved in the conversion of the amino acid homocysteine into methionine. Methionine in turn is required for DNA methylation. 5-Deoxyadenosyl cobalamin is a cofactor needed by the enzyme that converts L-methylmalonyl-CoA to succinyl-CoA. This conversion is an important step in the extraction of energy from proteins and fats. Furthermore, succinyl CoA is necessary for the production of hemoglobin, the substances that carries oxygen in red blood cells. Pyridoxine에 대한 Mechanism_Of_Action 정보 Vitamin B6 is the collective term for a group of three related compounds, pyridoxine (PN), pyridoxal (PL) and pyridoxamine (PM), and their phosphorylated derivatives, pyridoxine 5'-phosphate (PNP), pyridoxal 5'-phosphate (PLP) and pyridoxamine 5'-phosphate (PMP). Although all six of these compounds should technically be referred to as vitamin B6, the term vitamin B6 is commonly used interchangeably with just one of them, pyridoxine. Vitamin B6, principally in the form of the coenzyme pyridoxal 5'-phosphate, is involved in a wide range of biochemical reactions, including the metabolism of amino acids and glycogen, the synthesis of nucleic acids, hemogloblin, sphingomyelin and other sphingolipids, and the synthesis of the neurotransmitters serotonin, dopamine, norepinephrine and gamma-aminobutyric acid (GABA). Riboflavin에 대한 Mechanism_Of_Action 정보 Binds to riboflavin hydrogenase, riboflavin kinase, and riboflavin synthase. Riboflavin is the precursor of flavin mononucleotide (FMN, riboflavin monophosphate) and flavin adenine dinucleotide (FAD). The antioxidant activity of riboflavin is principally derived from its role as a precursor of FAD and the role of this cofactor in the production of the antioxidant reduced glutathione. Reduced glutathione is the cofactor of the selenium-containing glutathione peroxidases among other things. The glutathione peroxidases are major antioxidant enzymes. Reduced glutathione is generated by the FAD-containing enzyme glutathione reductase. Thiamine에 대한 Mechanism_Of_Action 정보 It is thought that the mechanism of action of thiamine on endothelial cells is related to a reduction in intracellular protein glycation by redirecting the glycolytic flux.
Pharmacology
Cyanocobalamin에 대한 Pharmacology 정보 Cyanocobalamin (Vitamin B12) is a water-soluble organometallic compound with a trivalent cobalt ion bound inside a corrin ring. It is needed for nerve cells and red blood cells, and to make DNA. Vitamin B12 deficiency is the cause of several forms of anemia. Pyridoxine에 대한 Pharmacology 정보 Vitamin B6 (pyridoxine) is a water-soluble vitamin used in the prophylaxis and treatment of vitamin B6 deficiency and peripheral neuropathy in those receiving isoniazid (isonicotinic acid hydrazide, INH). Vitamin B6 has been found to lower systolic and diastolic blood pressure in a small group of subjects with essential hypertension. Hypertension is another risk factor for atherosclerosis and coronary heart disease. Another study showed pyridoxine hydrochloride to inhibit ADP- or epinephrine-induced platelet aggregation and to lower total cholesterol levels and increase HDL-cholesterol levels, again in a small group of subjects. Vitamin B6, in the form of pyridoxal 5'-phosphate, was found to protect vascular endothelial cells in culture from injury by activated platelets. Endothelial injury and dysfunction are critical initiating events in the pathogenesis of atherosclerosis. Human studies have demonstrated that vitamin B6 deficiency affects cellular and humoral responses of the immune system. Vitamin B6 deficiency results in altered lymphocyte differentiation and maturation, reduced delayed-type hypersensitivity (DTH) responses, impaired antibody production, decreased lymphocyte proliferation and decreased interleukin (IL)-2 production, among other immunologic activities. Riboflavin에 대한 Pharmacology 정보 Riboflavin or vitamin B2 is an easily absorbed, water-soluble micronutrient with a key role in maintaining human health. Like the other B vitamins, it supports energy production by aiding in the metabolising of fats, carbohydrates, and proteins. Vitamin B2 is also required for red blood cell formation and respiration, antibody production, and for regulating human growth and reproduction. It is essential for healthy skin, nails, hair growth and general good health, including regulating thyroid activity. Riboflavin also helps in the prevention or treatment of many types of eye disorders, including some cases of cataracts. Thiamine에 대한 Pharmacology 정보 Thiamine is a vitamin with antioxidant, erythropoietic, cognition-and mood-modulatory, antiatherosclerotic, putative ergogenic, and detoxification activities. Thiamine has been found to protect against lead-induced lipid peroxidation in rat liver and kidney. Thiamine deficiency results in selective neuronal death in animal models. The neuronal death is associated with increased free radical production, suggesting that oxidative stress may play an important early role in brain damage associated with thiamine deficiency. Thiamine plays a key role in intracellular glucose metabolism and it is thought that thiamine inhibits the effect of glucose and insulin on arterial smooth muscle cell proliferation. Inhibition of endothelial cell proliferation may also promote atherosclerosis. Endothelial cells in culture have been found to have a decreased proliferative rate and delayed migration in response to hyperglycemic conditions. Thiamine has been shown to inhibit this effect of glucose on endothelial cells.
Metabolism
Cyanocobalamin에 대한 Metabolism 정보 # Phase_1_Metabolizing_Enzyme:Methylenetetrahydrofolate reductase Pyridoxine에 대한 Metabolism 정보 # Phase_1_Metabolizing_Enzyme:Methylenetetrahydrofolate reductase Riboflavin에 대한 Metabolism 정보 # Phase_1_Metabolizing_Enzyme:Monoamine oxidase type A (MAO-A)Methylenetetrahydrofolate reductase
Protein Binding
Cyanocobalamin에 대한 단백결합 정보 Very high (to specific plasma proteins called transcobalamins); binding of hydroxocobalamin is slightly higher than cyanocobalamin. Pyridoxine에 대한 단백결합 정보 22% Riboflavin에 대한 단백결합 정보 60% Thiamine에 대한 단백결합 정보 90-94%
Half-life
Cyanocobalamin에 대한 반감기 정보 Approximately 6 days (400 days in the liver). Pyridoxine에 대한 반감기 정보 15-20 days Riboflavin에 대한 반감기 정보 66-84 minutes
Absorption
Cyanocobalamin에 대한 Absorption 정보 Readily absorbed in the lower half of the ileum. Pyridoxine에 대한 Absorption 정보 The B vitamins are readily absorbed from the gastrointestinal tract, except in malabsorption syndromes. Pyridoxine is absorbed mainly in the jejunum. Riboflavin에 대한 Absorption 정보 Vitamin B2 is readily absorbed from the upper gastrointestinal tract. Thiamine에 대한 Absorption 정보 Absorbed mainly from duodenum, by both active and passive processes
Vitamin B12를 투여받는 경우 : 0.1-1 mg 근육주사 또는 정맥주사 후 48시간 이내에 50-90%가 신배설된다.
D-α-tocopherol의 약물동력학자료
흡수 : 경구 :
소장으로부터 흡수되는 데에는 담즙이 필요하다.
흡수 저하 : 흡수장애 환자, 저체중 미숙아, 고용량 투여
유화제제보다 수용성 제제가 더 잘 흡수된다.
분포 : 모든 조직에 분포하며, 특히 지방조직에 고농도로 분포하고 저장된다.
대사 : 간에서 glucuronides 포합
소실 : 주로 담즙을 통해 (70-80%) 배설된다.
Thiamine nitrate의 약물동력학자료
흡수 :
경구 : 최대흡수량 : 8-15 mg/day
근육주사 : 신속하고 완전하게 흡수된다.
분포 : 최소요구량 (약 1 mg/day)을 초과 섭취시 조직 저장에 포화가 나타난다.
소실 : 과잉 섭취된 양은 뇨를 통해 배설된다.
Biotransformation
Cyanocobalamin에 대한 Biotransformation 정보 Hepatic Riboflavin에 대한 Biotransformation 정보 Hepatic. Thiamine에 대한 Biotransformation 정보 Hepatic
Toxicity
Cyanocobalamin에 대한 Toxicity 정보 Anaphylactic reaction (skin rash, itching, wheezing)-after parenteral administration. ORL-MUS LD50 > 8000 mg/kg Pyridoxine에 대한 Toxicity 정보 Oral Rat LD50 = 4 gm/kg. Toxic effects include convulsions, dyspnea, hypermotility, diarrhea, ataxia and muscle weakness. Riboflavin에 대한 Toxicity 정보 Not Available Thiamine에 대한 Toxicity 정보 Thiamine toxicity is uncommon; as excesses are readily excreted, although long-term supplementation of amounts larger than 3 gram have been known to cause toxicity. Oral mouse LD50 = 8224 mg/kg, oral rat LD50 = 3710 mg/kg.
Drug Interactions
Calcium에 대한 Drug_Interactions 정보 Alendronate Formation of non-absorbable complexesAmprenavir The antiacid decreases the absorption of amprenavirAtazanavir This gastric pH modifier decreases the levels/effects of atazanavirChloroquine The antiacid decreases the absorption of chloroquineCiprofloxacin Formation of non-absorbable complexesDapsone Formation of non-absorbable complexesDelavirdine The antiacid decreases the effect of delavirdineDemeclocycline Formation of non-absorbable complexesDoxycycline Formation of non-absorbable complexesEnoxacin Formation of non-absorbable complexesFosamprenavir The antiacid decreases the absorption of amprenavirGrepafloxacin Formation of non-absorbable complexesIbandronate Formation of non-absorbable complexesIndinavir The antiacid decreases the absorption of indinavirItraconazole The antacid decreases the effect of the imidazoleKetoconazole The antacid decreases the effect of the imidazoleLevofloxacin Formation of non-absorbable complexesLevothyroxine Calcium decreases absorption of levothyroxineLomefloxacin Formation of non-absorbable complexesMethacycline Formation of non-absorbable complexesMinocycline Formation of non-absorbable complexesMoxifloxacin Formation of non-absorbable complexesNorfloxacin Formation of non-absorbable complexesOfloxacin Formation of non-absorbable complexesOxytetracycline Formation of non-absorbable complexesPefloxacin Formation of non-absorbable complexesPolystyrene sulfonate Formation of non-absorbable complexesRisedronate Formation of non-absorbable complexesTetracycline Formation of non-absorbable complexesTrovafloxacin Formation of non-absorbable complexesClodronate Formation of non-absorbable complexesEtidronic acid Formation of non-absorbable complexesMycophenolate mofetil Formation of non-absorbable complexesTemafloxacin Formation of non-absorbable complexes Cyanocobalamin에 대한 Drug_Interactions 정보 Not Available Pyridoxine에 대한 Drug_Interactions 정보 Not Available Riboflavin에 대한 Drug_Interactions 정보 Not Available Thiamine에 대한 Drug_Interactions 정보 Not Available
Calcium에 대한 Description 정보 Calcium plays a vital role in the anatomy, physiology and biochemistry of organisms and of the cell, particularly in signal transduction pathways. The skeleton acts as a major mineral storage site for the element and releases Ca2+ ions into the bloodstream under controlled conditions. Circulating calcium is either in the free, ionized form or bound to blood proteins such as serum albumin. Although calcium flow to and from the bone is neutral, about 5 mmol is turned over a day. Bone serves as an important storage point for calcium, as it contains 99% of the total body calcium. Low calcium intake may also be a risk factor in the development of osteoporosis. The best-absorbed form of calcium from a pill is a calcium salt like carbonate or phosphate. Calcium gluconate and calcium lactate are absorbed well by pregnant women. Seniors absorb calcium lactate, gluconate and citrate better unless they take their calcium supplement with a full breakfast. Cyanocobalamin에 대한 Description 정보 Cyanocobalamin (commonly known as Vitamin B12) is the most chemically complex of all the vitamins. Cyanocobalamin's structure is based on a corrin ring, which, although similar to the porphyrin ring found in heme, chlorophyll, and cytochrome, has two of the pyrrole rings directly bonded. The central metal ion is Co (cobalt). Cyanocobalamin cannot be made by plants or by animals, as the only type of organisms that have the enzymes required for the synthesis of cyanocobalamin are bacteria and archaea. Higher plants do not concentrate cyanocobalamin from the soil and so are a poor source of the substance as compared with animal tissues. Cyanocobalamin is naturally found in foods including meat (especially liver and shellfish), eggs, and milk products. [HMDB] Nicotinamide에 대한 Description 정보 An important compound functioning as a component of the coenzyme NAD. Its primary significance is in the prevention and/or cure of blacktongue and pellagra. Most animals cannot manufacture this compound in amounts sufficient to prevent nutritional deficiency and it therefore must be supplemented through dietary intake. [PubChem] Pyridoxine에 대한 Description 정보 The 4-methanol form of vitamin B 6 which is converted to pyridoxal phosphate which is a coenzyme for synthesis of amino acids, neurotransmitters (serotonin, norepinephrine), sphingolipids, aminolevulinic acid. Although pyridoxine and Vitamin B 6 are still frequently used as synonyms, especially by medical researchers, this practice is erroneous and sometimes misleading (EE Snell; Ann NY Acad Sci, vol 585 pg 1, 1990). [PubChem] Riboflavin에 대한 Description 정보 Nutritional factor found in milk, eggs, malted barley, liver, kidney, heart, and leafy vegetables. The richest natural source is yeast. It occurs in the free form only in the retina of the eye, in whey, and in urine; its principal forms in tissues and cells are as flavin mononucleotide and flavin-adenine dinucleotide. [PubChem] Thiamine에 대한 Description 정보 3-((4-Amino-2-methyl-5-pyrimidinyl)methyl)-5-(2- hydroxyethyl)-4-methylthiazolium chloride. [PubChem]
Dosage Form
Calcium에 대한 Dosage_Form 정보 Capsule OralLiquid DentalLiquid IntravenousLiquid OralLiquid SublingualPaste DentalPowder OralPowder, for solution OralSolution IntramuscularSolution IntravenousSolution OralSolution / drops OralSyrup OralTablet OralTablet, chewable Oral Cyanocobalamin에 대한 Dosage_Form 정보 Capsule OralLiquid IntramuscularLiquid OralPowder OralSolution IntramuscularTablet OralTablet, extended release Oral Pyridoxine에 대한 Dosage_Form 정보 Liquid IntramuscularSolution IntramuscularSolution / drops OralTablet Oral Riboflavin에 대한 Dosage_Form 정보 Not Available Thiamine에 대한 Dosage_Form 정보 Liquid IntramuscularLiquid IntravenousSolution IntravenousTablet Oral
Drug Category
Cyanocobalamin에 대한 Drug_Category 정보 Antianemic AgentsEssential VitaminVitamins (Vitamin B Complex) Nicotinamide에 대한 Drug_Category 정보 Vitamin B Complex Pyridoxine에 대한 Drug_Category 정보 Anti-inflammatory AgentsEssential VitaminVitamin B ComplexVitamins (Vitamin B Complex) Riboflavin에 대한 Drug_Category 정보 Photosensitizing AgentsRadiation-Sensitizing AgentsVitamin B ComplexVitamins (Vitamin B Complex) Thiamine에 대한 Drug_Category 정보 Anti-inflammatory AgentsEssential VitaminVitamin B ComplexVitamins (Vitamin B Complex)
Smiles String Canonical
Calcium에 대한 Smiles_String_canonical 정보 Not Available Cyanocobalamin에 대한 Smiles_String_canonical 정보 [Co+3].[C-] Nicotinamide에 대한 Smiles_String_canonical 정보 NC(=O)C1=CC=CN=C1 Pyridoxine에 대한 Smiles_String_canonical 정보 CC1=NC=C(CO)C(CO)=C1O Riboflavin에 대한 Smiles_String_canonical 정보 CC1=CC2=C(C=C1C)N(CC(O)C(O)C(O)CO)C1=NC(=O)NC(=O)C1=N2 Thiamine에 대한 Smiles_String_canonical 정보 CC1=NC=C(C[N+]2=CSC(CCO)=C2C)C(N)=N1
Smiles String Isomeric
Calcium에 대한 Smiles_String_isomeric 정보 Not Available Cyanocobalamin에 대한 Smiles_String_isomeric 정보 [Co+3].[C-] Nicotinamide에 대한 Smiles_String_isomeric 정보 NC(=O)C1=CC=CN=C1 Pyridoxine에 대한 Smiles_String_isomeric 정보 CC1=NC=C(CO)C(CO)=C1O Riboflavin에 대한 Smiles_String_isomeric 정보 CC1=CC2=C(C=C1C)N(C[C@@H](O)[C@@H](O)[C@@H](O)CO)C1=NC(=O)NC(=O)C1=N2 Thiamine에 대한 Smiles_String_isomeric 정보 CC1=NC=C(C[N+]2=CSC(CCO)=C2C)C(N)=N1
InChI Identifier
Calcium에 대한 InChI_Identifier 정보 Not Available Cyanocobalamin에 대한 InChI_Identifier 정보 InChI=1/C62H90N13O14P.CN.Co/c1-29-20-39-40(21-30(29)2)75(28-70-39)57-52(84)53(41(27-76)87-57)89-90(85,86)88-31(3)26-69-49(83)18-19-59(8)37(22-46(66)80)56-62(11)61(10,25-48(68)82)36(14-17-45(65)79)51(74-62)33(5)55-60(9,24-47(67)81)34(12-15-43(63)77)38(71-55)23-42-58(6,7)35(13-16-44(64)78)50(72-42)32(4)54(59)73-56;1-2;/h20-21,23,28,31,34-37,41,52-53,56-57,76,84H,12-19,22,24-27H2,1-11H3,(H15,63,64,65,66,67,68,69,71,72,73,74,77,78,79,80,81,82,83,85,86);;/q;-1;+3/p-1/t31?,34-,35-,36-,37+,41+,52?,53?,56?,57+,59-,60+,61+,62+;;/m1../s1/fC62H89N13O14P.CN.Co/h69,85H,63-68H2;;/q-1;2m/b42-23-,54-32-,55-33-;; Nicotinamide에 대한 InChI_Identifier 정보 InChI=1/C6H6N2O/c7-6(9)5-2-1-3-8-4-5/h1-4H,(H2,7,9)/f/h7H2 Pyridoxine에 대한 InChI_Identifier 정보 InChI=1/C8H11NO3/c1-5-8(12)7(4-11)6(3-10)2-9-5/h2,10-12H,3-4H2,1H3 Riboflavin에 대한 InChI_Identifier 정보 InChI=1/C17H20N4O6/c1-7-3-9-10(4-8(7)2)21(5-11(23)14(25)12(24)6-22)15-13(18-9)16(26)20-17(27)19-15/h3-4,11-12,14,22-25H,5-6H2,1-2H3,(H,20,26,27)/t11-,12+,14-/m1/s1/f/h20H Thiamine에 대한 InChI_Identifier 정보 InChI=1/C12H17N4OS/c1-8-11(3-4-17)18-7-16(8)6-10-5-14-9(2)15-12(10)13/h5,7,17H,3-4,6H2,1-2H3,(H2,13,14,15)/q+1/f/h13H2
Chemical IUPAC Name
Calcium에 대한 Chemical_IUPAC_Name 정보 Not Available Cyanocobalamin에 대한 Chemical_IUPAC_Name 정보 Not Available Nicotinamide에 대한 Chemical_IUPAC_Name 정보 pyridine-3-carboxamide Pyridoxine에 대한 Chemical_IUPAC_Name 정보 4,5-bis(hydroxymethyl)-2-methylpyridin-3-ol Riboflavin에 대한 Chemical_IUPAC_Name 정보 7,8-dimethyl-10-[(2R,3R,4S)-2,3,4,5-tetrahydroxypentyl]benzo[g]pteridine-2,4-dione Thiamine에 대한 Chemical_IUPAC_Name 정보 2-[3-[(4-amino-2-methylpyrimidin-5-yl)methyl]-4-methyl-1,3-thiazol-3-ium-5-yl]ethanol
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최근정보수정일 2024-09-06
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