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Opiate Alkaloids
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D053610 |
[Alkaloids found in OPIUM from PAPAVER and their derivatives that induce analgesic and narcotic effects by action upon OPIOID RECEPTORS.
] |
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Opiate Overdose
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D000083682 |
[Accidental or deliberate use of an OPIOID in excess of normal dosage. It includes overdose for prescription and illicit opioids.
] |
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Opiate Substitution Treatment
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D058850 |
[Medication-assisted treatment of opioid dependence using a substitute opiate such as METHADONE or BUPRENORPHINE.
, Opiate substitution treatment combined with COUNSELING; BEHAVIOR THERAPY and/or support services.
] |
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Opioid Epidemic
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D000080052 |
[Widespread use of OPIOIDS by disproportionately large numbers of individuals within a population, community, or region occurring within a relatively narrow window of time.
] |
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Opioid Peptides
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D018847 |
[The endogenous peptides with opiate-like activity. The three major classes currently recognized are the ENKEPHALINS, the DYNORPHINS, and the ENDORPHINS. Each of these families derives from different precursors, proenkephalin, prodynorphin, and PRO-OPIOMELANOCORTIN, respectively. There are also at least three classes of OPIOID RECEPTORS, but the peptide families do not map to the receptors in a simple way.
] |
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Opioid-Induced Constipation
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D000079689 |
[CONSTIPATION associated with the use of OPIOIDS.
] |
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Opioid-Related Disorders
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D009293 |
[Disorders related to or resulting from abuse or misuse of OPIOIDS.
] |
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Opipramol
|
D009888 |
[A tricyclic antidepressant with actions similar to AMITRIPTYLINE.
] |
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Opisthorchiasis
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D009889 |
[Infection with flukes of the genus Opisthorchis.
] |
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Opisthorchidae
|
D009890 |
[A family of lanceolate liver flukes of the class Trematoda which occurs in animals and man. There are several genera including Amphimerus, Cyclorchis, Delphinicola, Metorchis, Parametorchis, Phocitrema, Clonorchis, and Opisthorchis.
] |
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Opisthorchis
|
D009891 |
[A genus of trematode liver flukes of the family Opisthorchidae. It consists of the following species: O. felineus, O. noverca (Amphimerus noverca), and O. viverrini. The intermediate hosts are snails, fish, and AMPHIBIANS.
] |
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Opium
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D009892 |
[The air-dried exudate from the unripe seed capsule of the opium poppy, Papaver somniferum, or its variant, P. album. It contains a number of alkaloids, but only a few - MORPHINE; CODEINE; and PAPAVERINE - have clinical significance. Opium has been used as an analgesic, antitussive, antidiarrheal, and antispasmodic.
] |
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Opium Dependence
|
D000074607 |
[Strong physiological and emotional dependence on OPIUM.
] |
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Oplopanax
|
D028002 |
[A plant genus in the family ARALIACEAE, order Apiales, subclass Rosidae. It is the source of cirensenosides (triterpenoid saponins).
] |
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Opossums
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D009893 |
[New World marsupials of the family Didelphidae. Opossums are omnivorous, largely nocturnal and arboreal MAMMALS, grow to about three feet in length, including the scaly prehensile tail, and have an abdominal pouch in which the young are carried at birth.
] |
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Opportunistic Infections
|
D009894 |
[An infection caused by an organism which becomes pathogenic under certain conditions, e.g., during immunosuppression.
] |
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Opsins
|
D055355 |
[Photosensitive proteins in the membranes of PHOTORECEPTOR CELLS such as the rods and the cones. Opsins have varied light absorption properties and are members of the G-PROTEIN-COUPLED RECEPTORS family. Their ligands are VITAMIN A-based chromophores.
] |
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Opsoclonus-Myoclonus Syndrome
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D053578 |
[A neurological condition that is characterized by uncontrolled rapid irregular movements of the eye (OPSOCLONUS) and the muscle (MYOCLONUS) causing unsteady, trembling gait. It is also known as dancing eyes-dancing feet syndrome and is often associated with neoplasms, viral infections, or autoimmune disorders involving the nervous system.
] |
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Opsonin Proteins
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D009895 |
[Proteins that bind to particles and cells to increase susceptibility to PHAGOCYTOSIS, especially ANTIBODIES bound to EPITOPES that attach to FC RECEPTORS. COMPLEMENT C3B may also participate.
] |
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Optic Atrophies, Hereditary
|
D015418 |
[Hereditary conditions that feature progressive visual loss in association with optic atrophy. Relatively common forms include autosomal dominant optic atrophy (OPTIC ATROPHY, AUTOSOMAL DOMINANT) and Leber hereditary optic atrophy (OPTIC ATROPHY, HEREDITARY, LEBER).
] |
