- 関
- hydrocortisone、hydrocortisone aceponate、hydrocortisone acetate、hydrocortisone buteprate、hydrocortisone butyrate、hydrocortisone butyrate propionate、hydrocortisone sodium phosphate、hydrocortisone sodium succinate、hydrocortisone succinate
WordNet
- an adrenal-cortex hormone (trade names Hydrocortone or Cortef) that is active in carbohydrate and protein metabolism (同)cortisol, Hydrocortone, Cortef
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出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2015/11/05 22:53:24」(JST)
wiki en
Not to be confused with cortisone, a metabolite from cortisol, with a similar name, genesis, and function.
| Systematic (IUPAC) name | |
|---|---|
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(11β)-11,17,21-trihydroxypregn-4-ene-3,20-dione
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| Clinical data | |
| AHFS/Drugs.com | monograph |
| MedlinePlus | a682206 |
| Licence data | US FDA:link |
| Pregnancy category |
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| Legal status |
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| Routes of administration |
Oral tablets, intravenous, topical, rectal |
| Identifiers | |
| CAS Registry Number | 50-23-7 Y |
| ATC code | A01AC03 A07EA02 C05AA01 D07AA02 H02AB09 S01BA02 S02BA01 |
| PubChem | CID: 5754 |
| DrugBank | DB00741 N |
| ChemSpider | 5551 Y |
| UNII | WI4X0X7BPJ Y |
| KEGG | D00088 Y |
| ChEBI | CHEBI:17650 Y |
| ChEMBL | CHEMBL389621 Y |
| Chemical data | |
| Formula | C21H30O5 |
| Molecular mass | 362.460 g/mol |
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SMILES
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InChI
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| N (what is this?) (verify) | |
Cortisol is a steroid hormone, in the glucocorticoid class of hormones, and is produced in humans by the zona fasciculata of the adrenal cortex within the adrenal gland.[1] It is released in response to stress and low blood-glucose concentration.
It functions to increase blood sugar through gluconeogenesis, to suppress the immune system, and to aid in the metabolism of fat, protein, and carbohydrate.[2] It also decreases bone formation.[3]
Hydrocortisone (INN, USAN, BAN) is a name for cortisol when it is used as a medication. Hydrocortisone is used to treat people who lack adequate naturally generated cortisol. It is on the World Health Organization's List of Essential Medicines needed in a basic health system.[4]
Contents
- 1 Main functions in the body
- 1.1 Metabolic response
- 1.2 Immune response
- 2 Other effects
- 2.1 Metabolism
- 2.1.1 Glucose
- 2.1.2 Bone and collagen
- 2.1.3 Amino acid
- 2.2 Wound healing
- 2.3 Electrolyte and water balance
- 2.3.1 Sodium
- 2.3.2 Potassium
- 2.4 Gastric and renal secretion
- 2.5 Memory
- 2.6 Sleep, stress, and depression
- 2.7 Effects during pregnancy
- 2.1 Metabolism
- 3 Synthesis and release
- 3.1 Normal levels
- 3.2 Disorders of cortisol production
- 4 Regulation
- 4.1 Factors reducing cortisol levels
- 4.2 Factors increasing cortisol levels
- 5 Pharmacology
- 5.1 Protein binding
- 6 Biochemistry
- 6.1 Biosynthesis
- 6.2 Metabolism
- 7 See also
- 8 References
- 9 External links
Main functions in the body
Metabolic response
In the early fasting state, cortisol stimulates gluconeogenesis (the formation of glucose), and activates anti-stress and anti-inflammatory pathways.[5] Cortisol also plays an important, but indirect, role in liver and muscle glycogenolysis, the breaking down of glycogen to glucose-1-phosphate and glucose. This is done through its passive influence on glucagon.[clarification needed] Additionally, cortisol facilitates the activation of glycogen phosphorylase, which is necessary for epinephrine to have an effect on glycogenolysis.[6][7]
In the late fasting state, the function of cortisol changes slightly and increases glycogenesis. This response allows the liver to take up glucose that is not being used by the peripheral tissue and turn it into liver glycogen stores to be used if the body moves into the starvation state.[citation needed]
Elevated levels of cortisol, if prolonged, can lead to proteolysis (breakdown of proteins) and muscle wasting.[8] Several studies have shown that cortisol can have a lipolytic effect (promote the breakdown of fat). Under some conditions, however, cortisol may somewhat suppress lipolysis.[9]
Immune response
Cortisol prevents the release of substances in the body that cause inflammation. It is used to treat conditions resulting from over activity of the B-cell-mediated antibody response. Examples include inflammatory and rheumatoid diseases, as well as allergies. Low-potency hydrocortisone, available as a non-prescription medicine in some countries, is used to treat skin problems such as rashes, and eczema.
It inhibits production of interleukin (IL)-12, interferon (IFN)-gamma, IFN-alpha and tumor-necrosis-factor (TNF)-alpha by antigen-presenting cells (APCs) and T helper (Th)1 cells, but upregulates IL-4, IL-10, and IL-13 by Th2 cells. This results in a shift toward a Th2 immune response rather than general immunosuppression. The activation of the stress system (and resulting increase in cortisol and Th2 shift) seen during an infection is believed to be a protective mechanism which prevents an over activation of the inflammatory response.[10]
Cortisol can weaken the activity of the immune system. Cortisol prevents proliferation of T-cells by rendering the interleukin-2 producer T-cells unresponsive to interleukin-1 (IL-1), and unable to produce the T-cell growth factor (IL-2).[11] Cortisol also has a negative-feedback effect on interleukin-1.[12]
Though IL-1 is useful in combating some diseases; however, endotoxic bacteria have gained an advantage by forcing the hypothalamus to increase cortisol levels (forcing the secretion of CRH hormone, thus antagonizing IL-1). The suppressor cells are not affected by glucosteroid response-modifying factor (GRMF),[13] so the effective setpoint for the immune cells may be even higher than the setpoint for physiological processes (reflecting leukocyte redistribution to lymph nodes, bone marrow, and skin). Rapid administration of corticosterone (the endogenous Type I and Type II receptor agonist) or RU28362 (a specific Type II receptor agonist) to adrenalectomized animals induced changes in leukocyte distribution. Natural killer cells are affected by cortisol.[14]
Cortisol stimulates many copper enzymes (often to 50% of their total potential), probably to increase copper availability for immune purposes.[15]:337 This includes lysyl oxidase, an enzyme that cross-links collagen and elastin.[15]:334 Especially valuable for immune response is cortisol's stimulation of the superoxide dismutase,[16] since this copper enzyme is almost certainly used by the body to permit superoxides to poison bacteria.
Other effects
Metabolism
Glucose
Cortisol counteracts insulin, contributes to hyperglycemia-causing hepatic gluconeogenesis[17] and inhibits the peripheral utilization of glucose (insulin resistance)[17] by decreasing the translocation of glucose transporters (especially GLUT4) to the cell membrane.[18] However, cortisol increases glycogen synthesis (glycogenesis) in the liver.[19] The permissive effect of cortisol on insulin action in liver glycogenesis is observed in hepatocyte culture in the laboratory, although the mechanism for this is unknown.
Bone and collagen
Cortisol reduces bone formation,[3] favoring long-term development of osteoporosis (progressive bone disease). It transports potassium out of cells in exchange for an equal number of sodium ions (see above).[20] This can trigger the hyperkalemia of metabolic shock from surgery. Cortisol also reduces calcium absorption in the intestine.[21]
Collagen is an important component of connective tissue. It is vital for structural support and is found in muscles, tendons, and joints, as well as throughout the entire body. Cortisol down regulates the synthesis of collagen.[22]
Amino acid
Cortisol raises the free amino acids in the serum. It does this by inhibiting collagen formation, decreasing amino acid uptake by muscle, and inhibiting protein synthesis.[23] Cortisol (as opticortinol) may inversely inhibit IgA precursor cells in the intestines of calves.[24] Cortisol also inhibits IgA in serum, as it does IgM; however, it is not shown to inhibit IgE.[25]
Wound healing
Cortisol and the stress response have known deleterious effects on the immune system. High levels of perceived stress and increases in cortisol have been found to lengthen wound healing time in healthy, male adults. Those who had the lowest levels of cortisol the day following a 4 mm punch biopsy had the fastest healing time.[26] In dental students, wounds from punch biopsies took an average of 40% longer to heal when performed three days before an examination as opposed to biopsies performed on the same students during summer vacation.[27] This is in line with previous animal studies that show similar detrimental effects on wound healing, notably the primary reports showing that turtles recoil from cortisol.[28]
Electrolyte and water balance
Cortisol acts as a diuretic, increasing water diuresis, glomerular filtration rate, and renal plasma flow from the kidneys, as well as increasing sodium retention and potassium excretion. It also increases sodium and water absorption and potassium excretion in the intestines.[29]
Sodium
Cortisol inhibits sodium loss through the small intestine of mammals.[30] Sodium depletion, however, does not affect cortisol levels[31] so cortisol cannot be used to regulate serum sodium. Cortisol's original purpose may have been sodium transport. This hypothesis is supported by the fact that freshwater fish utilize cortisol to stimulate sodium inward, while saltwater fish have a cortisol-based system for expelling excess sodium.[32]
Potassium
A sodium load augments the intense potassium excretion by cortisol. Corticosterone is comparable to cortisol in this case.[19] For potassium to move out of the cell, cortisol moves an equal number of sodium ions into the cell.[20] This should make pH regulation much easier (unlike the normal potassium-deficiency situation, in which two sodium ions move in for each three potassium ions that move out—closer to the deoxycorticosterone effect).
Gastric and renal secretion
Cortisol stimulates gastric-acid secretion.[33] Cortisol's only direct effect on the hydrogen ion excretion of the kidneys is to stimulate the excretion of ammonium ions by deactivating the renal glutaminase enzyme.[34]
Memory
Cortisol works with epinephrine (adrenaline) to create memories of short-term emotional events; this is the proposed mechanism for storage of flash bulb memories, and may originate as a means to remember what to avoid in the future.[35] However, long-term exposure to cortisol damages cells in the hippocampus;[36] this damage results in impaired learning. Furthermore, it has been shown that cortisol inhibits memory retrieval of already stored information.[37][38]
Sleep, stress, and depression
Diurnal cycles of cortisol levels are found in humans.[6] In humans, the amount of cortisol present in the blood undergoes diurnal variation; the level peaks in the early morning (approximately 8 a.m.) and reaches its lowest level at about midnight-4 a.m., or three to five hours after the onset of sleep. Information about the light/dark cycle is transmitted from the retina to the paired suprachiasmatic nuclei in the hypothalamus. This pattern is not present at birth; estimates of when it begins vary from two weeks to nine months of age.[39]
Changed patterns of serum cortisol levels have been observed in connection with abnormal ACTH levels, clinical depression, psychological stress, and physiological stressors such as hypoglycemia, illness, fever, trauma, surgery, fear, pain, physical exertion, or temperature extremes. Cortisol levels may also differ for individuals with autism or Asperger's syndrome.[40] There is also significant individual variation, although a given person tends to have consistent rhythms.[41]
Effects during pregnancy
During human pregnancy, increased fetal production of cortisol between weeks 30 and 32 initiates production of fetal lung surfactant to promote maturation of the lungs. In fetal lambs, glucocorticoids (principally cortisol) increase after about day 130, with lung surfactant increasing greatly, in response, by about day 135,[42] and although lamb fetal cortisol is mostly of maternal origin during the first 122 days, 88 percent or more is of fetal origin by day 136 of gestation.[43] Although the timing of fetal cortisol concentration elevation in sheep may vary somewhat, it averages about 11.8 days before the onset of labor.[44] In several livestock species (e.g. the cow, sheep, goat and pig), the surge of fetal cortisol late in gestation triggers the onset of parturition by removing the progesterone block of cervical dilation and myometrial contraction. The mechanisms yielding this effect on progesterone differ among species. In the sheep, where progesterone sufficient for maintaining pregnancy is produced by the placenta after about day 70 of gestation,[45][46] the pre-partum fetal cortisol surge induces placental enzymatic conversion of progesterone to estrogen. (The elevated level of estrogen stimulates prostaglandin secretion and oxytocin receptor development.)
Exposure of fetuses to cortisol during gestation can have a variety of developmental outcomes, including alterations in prenatal and postnatal growth patterns. In marmosets, a species of New World primates, pregnant females have varying levels of cortisol during gestation, both within and between females. Mustoe et al. (2012) showed that infants born to mothers with high gestational cortisol during the first trimester of pregnancy had lower rates of growth in body mass indices (BMI) than infants born to mothers with low gestational cortisol (approximately 20% lower). However, postnatal growth rates in these high-cortisol infants was more rapid than low-cortisol infants later in postnatal periods, and complete catch-up in growth had occurred by 540 days of age. These results suggest that gestational exposure to cortisol in fetuses has important potential fetal programming effects on both pre- and post-natal growth in primates.[47]
Synthesis and release
Cortisol is produced in the human body by the adrenal gland in the zona fasciculata,[1] the second of three layers comprising the adrenal cortex. The cortex forms the outer "bark" of each adrenal gland, situated atop the kidneys. The release of cortisol is controlled by the hypothalamus, a part of the brain. The secretion of corticotropin-releasing hormone (CRH) by the hypothalamus[48] triggers cells in the neighboring anterior pituitary to secrete another hormone, the adrenocorticotropic hormone (ACTH), into the vascular system, through which blood carries it to the adrenal cortex. ACTH stimulates the synthesis of cortisol, glucocorticoids, mineralocorticoids and dehydroepiandrosterone (DHEA).
Cortisol for injection
Normal levels
Normal values indicated in the following tables pertain to humans (normals vary among species). Measured cortisol levels, and therefore reference ranges, depend on the analytical method used and factors such as age and sex. Test results should, therefore, always be interpreted using the reference range from the laboratory that produced the result.
| Time | Lower limit | Upper limit | Unit |
|---|---|---|---|
| 09:00 am | 140[49] | 700[49] | nmol/L |
| 5[50] | 25[50] | μg/dL | |
| Midnight | 80[49] | 350[49] | nmol/L |
| 2.9[50] | 13[50] | μg/dL |
Using the molecular weight of 362.460 g/mole, the conversion factor from µg/dl to nmol/L is approximately 27.6; thus, 10 µg/dl is approximately equal to 276 nmol/L.
| Lower limit | Upper limit | Unit |
|---|---|---|
| 28[51] or 30[52] | 280[51] or 490[52] | nmol/24h |
| 10[53] or 11[54] | 100[53] or 176[54] | µg/24 h |
Disorders of cortisol production
- Hypercortisolism: Excessive levels of cortisol in the blood.
- Hypocortisolism: Insufficient levels of cortisol in the blood.
Disorders of cortisol production, and some consequent conditions, are as follows:
- Primary hypercortisolism (Cushing's syndrome)
- Primary hypocortisolism (Addison's disease, Nelson's syndrome)
- Secondary hypercortisolism (pituitary tumor or ectopic tumor, Cushing's disease, Pseudo-Cushing's syndrome)
- Secondary hypocortisolism (pituitary tumor, Sheehan's syndrome)
Regulation
The primary control of cortisol is the pituitary gland peptide, adrenocorticotropic hormone (ACTH). ACTH probably controls cortisol by controlling the movement of calcium into the cortisol-secreting target cells.[55] ACTH is in turn controlled by the hypothalamic peptide corticotropin-releasing hormone (CRH), which is under nervous control. CRH acts synergistically with arginine vasopressin, angiotensin II, and epinephrine.[56] (In swine, which do not produce arginine vasopressin, lysine vasopressin acts synergistically with CRH.[57])
When activated macrophages start to secrete interleukin-1 (IL-1), which synergistically with CRH increases ACTH,[12] T-cells also secrete glucosteroid response modifying factor (GRMF or GAF) as well as IL-1; both increase the amount of cortisol required to inhibit almost all the immune cells.[13] Immune cells then assume their own regulation, but at a higher cortisol setpoint. The increase in cortisol in diarrheic calves is minimal over healthy calves, however, and falls over time.[58] The cells do not lose all their fight-or-flight override because of interleukin-1's synergism with CRH. Cortisol even has a negative feedback effect on interleukin-1[12]—especially useful to treat diseases that force the hypothalamus to secrete too much CRH, such as those caused by endotoxic bacteria. The suppressor immune cells are not affected by GRMF,[13] so the immune cells' effective setpoint may be even higher than the setpoint for physiological processes. GRMF (known as GAF in this reference) affects primarily the liver (rather than the kidneys) for some physiological processes.[59]
High-potassium media (which stimulates aldosterone secretion in vitro) also stimulate cortisol secretion from the fasciculata zone of canine adrenals [60][61] — unlike corticosterone, upon which potassium has no effect.[62]
Potassium loading also increases ACTH and cortisol in humans.[63] This is probably the reason why potassium deficiency causes cortisol to decline (as mentioned) and causes a decrease in conversion of 11-deoxycortisol to cortisol.[64] This may also have a role in rheumatoid-arthritis pain; cell potassium is always low in RA.[65]
Factors reducing cortisol levels
- Magnesium supplementation decreases serum cortisol levels after aerobic exercise,[66][67] but not after resistance training.[68]
- Omega-3 fatty acids have a dose-dependent effect[69] in slightly reducing cortisol release influenced by mental stress,[70] suppressing the synthesis of interleukin-1 and -6 and enhancing the synthesis of interleukin-2; the former promotes higher CRH release. Omega-6 fatty acids, on the other hand, have an inverse effect on interleukin synthesis.[71]
- Music therapy can reduce cortisol levels in certain situations.[72]
- Massage therapy can reduce cortisol.[73]
- Laughing, and the experience of humour, can lower cortisol levels.[74]
- Soy-derived phosphatidylserine interacts with cortisol; the correct dose, however, is unclear.[75][76]
- Black tea may hasten recovery from a high-cortisol condition.[77][78][79]
- Regular dancing has been shown to lead to significant decreases in salivary cortisol concentrations.[80]
Factors increasing cortisol levels
- Viral infections increase cortisol levels through activation of the HPA axis by cytokines.[81]
- Caffeine may increase cortisol levels.[82]
- Sleep deprivation[83]
- Intense (high VO2 max) or prolonged aerobic exercise transiently increases cortisol levels to increase gluconeogenesis and maintain blood glucose;[84] however, cortisol declines to normal levels after eating (i.e., restoring a neutral energy balance)[85]
- The Val/Val variation of the BDNF gene in men and the Val/Met variation in women are associated with increased salivary cortisol in a stressful situation.[86]
- Hypoestrogenism and melatonin supplementation increase cortisol levels in postmenopausal women.[87]
- Severe trauma or stressful events can elevate cortisol levels in the blood for prolonged periods.[88]
- Subcutaneous adipose tissue regenerates cortisol from cortisone by the enzyme 11-beta HSD1.[89]
- Anorexia nervosa may be associated with increased cortisol levels.[90]
- The serotonin receptor gene 5HTR2C is associated with increased cortisol production in men.[91]
- Severe calorie restriction causes elevated baseline levels of cortisol.[92]
- Posing in low-power nonverbal displays through close, contractive postures can increase cortisol levels.[93]
- Smelling androstadienone has been found in one study to raise cortisol levels in women; as well as, in other studies, to affect mood (see androstadienone article for details and citations).
Pharmacology
Hydrocortisone is the pharmaceutical term for cortisol used in oral administration, intravenous injection, or topical application. It is used as an immunosuppressive drug, given by injection in the treatment of severe allergic reactions such as anaphylaxis and angioedema, in place of prednisolone in patients needing steroid treatment but unable take oral medication, and perioperatively in patients on long-term steroid treatment to prevent Addisonian crisis. It may also be injected into inflamed joints resulting from diseases such as gout.
Compared to hydrocortisone, prednisolone is about four times as strong and dexamethasone about forty times as strong, in their anti-inflammatory effect.[94] For side effects, see corticosteroid and prednisolone.
It may be used topically for allergic rashes, eczema, psoriasis, pruritis (itchyness) and other inflammatory skin conditions. Topical hydrocortisone creams and ointments are available in most countries without prescription in strengths ranging from 0.05% to 2.5% (depending on local regulations) with stronger forms available by prescription only. Covering the skin after application increases the absorption and effect. Such enhancement is sometimes prescribed, but otherwise should be avoided to prevent overdose and systemic impact.
Protein binding
Most serum cortisol (all but about 4%) is bound to proteins, including corticosteroid binding globulin (CBG) and serum albumin. Free cortisol passes easily through cellular membranes, where they bind intracellular cortisol receptors.[95]
Biochemistry
Biosynthesis
Steroidogenesis, showing cortisol at right.
Cortisol is synthesized from cholesterol. Synthesis takes place in the zona fasciculata of the adrenal cortex. (The name cortisol is derived from cortex.) While the adrenal cortex also produces aldosterone (in the zona glomerulosa) and some sex hormones (in the zona reticularis), cortisol is its main secretion in humans and several other species. (However, in cattle, corticosterone levels may approach[96] or exceed[6] cortisol levels.). The medulla of the adrenal gland lies under the cortex, mainly secreting the catecholamines adrenaline (epinephrine) and noradrenaline (norepinephrine) under sympathetic stimulation.
The synthesis of cortisol in the adrenal gland is stimulated by the anterior lobe of the pituitary gland with adrenocorticotropic hormone (ACTH); ACTH production is in turn stimulated by corticotropin-releasing hormone (CRH), which is released by the hypothalamus. ACTH increases the concentration of cholesterol in the inner mitochondrial membrane, via regulation of the STAR (steroidogenic acute regulatory) protein. It also stimulates the main rate-limiting step in cortisol synthesis, in which cholesterol is converted to pregnenolone and catalyzed by Cytochrome P450SCC (side-chain cleavage enzyme).[97]
Metabolism
Cortisol is metabolized by the 11-beta hydroxysteroid dehydrogenase system (11-beta HSD), which consists of two enzymes: 11-beta HSD1 and 11-beta HSD2.
- 11-beta HSD1 utilizes the cofactor NADPH to convert biologically inert cortisone to biologically active cortisol
- 11-beta HSD2 utilizes the cofactor NAD+ to convert cortisol to cortisone
Overall, the net effect is that 11-beta HSD1 serves to increase the local concentrations of biologically active cortisol in a given tissue; 11-beta HSD2 serves to decrease local concentrations of biologically active cortisol.
Cortisol is also metabolized into 5-alpha tetrahydrocortisol (5-alpha THF) and 5-beta tetrahydrocortisol (5-beta THF), reactions for which 5-alpha reductase and 5-beta reductase are the rate-limiting factors, respectively. 5-Beta reductase is also the rate-limiting factor in the conversion of cortisone to tetrahydrocortisone (THE).
An alteration in 11-beta HSD1 has been suggested to play a role in the pathogenesis of obesity, hypertension, and insulin resistance known as metabolic syndrome.[98]
An alteration in 11-beta HSD2 has been implicated in essential hypertension and is known to lead to the syndrome of apparent mineralocorticoid excess (SAME).
See also
- Cortisone, a hormone
- Cortizone, a medication
- Membrane glucocorticoid receptor
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- ^ a b c d Derived from molar values using molar mass of 362 g/mol
- ^ a b Converted from µg/24h, using molar mass of 362.460 g/mol
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Cortisol has wide-ranging effects, including alterations of carbohydrate, protein, and lipid metabolism; catabolic effects on skin, muscle, connective tissue, and bone; immunomodulatory effects; blood pressure and circulatory system regulation; and effects on mood and central nervous system function. In the short term, activation of the HPA axis in response to stress is adaptive. However, long-term stress promoting chronic exposure of tissues to high cortisol concentrations becomes maladaptive. ... Exercise, particularly sustained aerobic activity, is a potent stimulus of cortisol secretion. The circulating concentrations of cortisol are directly proportional to the intensity of exercise as measured by oxygen uptake. As is the case for the GH/IGF-1 and HPG axes, the HPA axis also receives many other inputs, including the light/dark cycle, feeding schedules, immune regulation, and many neurotransmitters that mediate the effects of exercise and physical and psychic stress [52]. ... The HPA is activated by stress, whether physical (exercise) or psychological. Increased cortisol production, along with activation of the sympathetic nervous system, affects whole body metabolism. This is apparently part of the catabolic response of the entire organism, with the purpose of mobilizing metabolic fuels that are subsequently broken down to produce energy and to dampen the threat or perceived threat. ... Thus, a negative net energy balance leads to activation of the HPA axis and the circulating concomitants of the catabolic state in an attempt to keep core processes functional, realizing that the stress of exercise has no effect on cortisol and circulating metabolic substrates beyond the impact of the exercise energy expenditure on energy availability [60]. Thuma et al. [61] had already made the important observation that the reported differences in cortisol levels pre- and post-exercise depended on whether this difference was measured from a single pre-test level or from the physiologic circadian baseline as determined in an independent session in the resting state. By this analytical technique, these investigators showed that increasing energy expenditure led to significant cortisol release. This release was apparent if they subtracted the physiologic circadian baseline from the post-exercise value.
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External links
| Wikimedia Commons has media related to Cortisol. |
- Cortisol MS Spectrum
- Dosage Side Effects and Drug Interaction Warnings
- Cortisol (serum/plasma) at Lab Tests Online
- Cortisol: analyte monograph – The Association for Clinical Biochemistry and Laboratory Medicine
- How to stay healthy with Cortisol
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UpToDate Contents
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- 1. 血清および唾液中のコルチゾールの測定 measurement of cortisol in serum and saliva
- 2. Treatment-related toxicity from the use of radiation therapy for gynecologic malignancies
- 3. 小児における副腎不全の診断 diagnosis of adrenal insufficiency in children
- 4. 思春期における多嚢胞性卵巣症候群の診断的評価 diagnostic evaluation of polycystic ovary syndrome in adolescents
- 5. 敗血症性ショックのステロイド療法 corticosteroid therapy in septic shock
English Journal
- Stability of hydrocortisone oral suspensions prepared from tablets and powder.
- Fawcett JP1, Boulton DW, Jiang R, Woods DJ.Author information 1School of Pharmacy, University of Otago, Dunedin, New Zealand.AbstractOBJECTIVE: To assess the stability, dosage uniformity, and clinical acceptability of hydrocortisone oral suspensions prepared from tablets and powder.
- The Annals of pharmacotherapy.Ann Pharmacother.1995 Oct;29(10):987-90.
- OBJECTIVE: To assess the stability, dosage uniformity, and clinical acceptability of hydrocortisone oral suspensions prepared from tablets and powder.DESIGN: Hydrocortisone 2.5 mg/mL oral suspensions were stored in the dark for 91 days at 5, 25, and 40 degrees C. Dosage uniformity was assessed by re
- PMID 8845559
- High-performance liquid chromatographic determination of hydrocortisone cypionate: method development and characterization of chromatographic behavior.
- Munson JW, Wilson TD.AbstractA reversed-phase high-performance liquid chromatographic method for hydrocortisone cypionate bulk drug and oral solution was developed that avoids the use of a heated column as described in USP XX. A study of the effect of the organic modifier concentration on the capacity factor suggests that mixed partition and adsorption phenomena are responsible for the retention of several steroids when acetonitrile is used in the mobile phase. Evidence is presented that hydrogen bonding of the solute molecule with silane hydroxyl groups may be responsible for the adsorption.
- Journal of pharmaceutical sciences.J Pharm Sci.1981 Feb;70(2):177-81.
- A reversed-phase high-performance liquid chromatographic method for hydrocortisone cypionate bulk drug and oral solution was developed that avoids the use of a heated column as described in USP XX. A study of the effect of the organic modifier concentration on the capacity factor suggests that mixed
- PMID 7205224
Related Links
- hydrocortisone cypionate Aquacort (CA), Cortate (CA), Cortef, Texacort (CA) Pharmacologic class: Short-acting corticosteroid Therapeutic class: Anti-inflammatory (steroidal) Pregnancy risk category C Action Suppresses ...
- hydrocortisone cypionate Aquacort (CA), Cortate (CA), Cortef, Texacort (CA) Pharmacologic class: Short-acting corticosteroid Therapeutic class: Anti-inflammatory (steroidal) Pregnancy risk category C Action Suppresses ...
Related Pictures
★リンクテーブル★
| リンク元 | 「hydrocortisone buteprate」「hydrocortisone sodium phosphate」「hydrocortisone succinate」「hydrocortisone aceponate」「hydrocortisone acetate」 |
| 関連記事 | 「hydrocortisone」 |
「hydrocortisone buteprate」
- 関
- cortisol、hydrocortisone、hydrocortisone aceponate、hydrocortisone acetate、hydrocortisone butyrate、hydrocortisone butyrate propionate、hydrocortisone cypionate、hydrocortisone sodium phosphate、hydrocortisone sodium succinate、hydrocortisone succinate
「hydrocortisone sodium phosphate」
- 関
- cortisol、hydrocortisone、hydrocortisone aceponate、hydrocortisone acetate、hydrocortisone buteprate、hydrocortisone butyrate、hydrocortisone butyrate propionate、hydrocortisone cypionate、hydrocortisone sodium succinate、hydrocortisone succinate
「hydrocortisone succinate」
- 関
- cortisol、hydrocortisone、hydrocortisone aceponate、hydrocortisone acetate、hydrocortisone buteprate、hydrocortisone butyrate、hydrocortisone butyrate propionate、hydrocortisone cypionate、hydrocortisone sodium phosphate、hydrocortisone sodium succinate
「hydrocortisone aceponate」
ヒドロコルチゾンアセ・ネート
- 関
- hydrocortisone、hydrocortisone acetate、hydrocortisone buteprate、hydrocortisone butyrate、hydrocortisone butyrate propionate、hydrocortisone cypionate、hydrocortisone sodium phosphate、hydrocortisone sodium succinate、hydrocortisone succinate
「hydrocortisone acetate」
- ・酸ヒドロコルチゾン
- 関
- hydrocortisone、hydrocortisone aceponate、hydrocortisone buteprate、hydrocortisone butyrate、hydrocortisone butyrate propionate、hydrocortisone cypionate、hydrocortisone sodium phosphate、hydrocortisone sodium succinate、hydrocortisone succinate