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Apexification
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D056624 |
[An endodontic procedure performed to encourage continued physiological development and formation of TOOTH APEX.
, Endodontic procedure performed to induce TOOTH APEX barrier development. ROOT CANAL FILLING MATERIALS are used to repair open apex or DENTAL PULP NECROSIS in an immature tooth. CALCIUM HYDROXIDE and mineral trioxide aggregate are commonly used as the filling materials.
] |
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Apgar Score
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D001034 |
[A method, developed by Dr. Virginia Apgar, to evaluate a newborn's adjustment to extrauterine life. Five items - heart rate, respiratory effort, muscle tone, reflex irritability, and color - are evaluated 60 seconds after birth and again five minutes later on a scale from 0-2, 0 being the lowest, 2 being normal. The five numbers are added for the Apgar score. A score of 0-3 represents severe distress, 4-7 indicates moderate distress, and a score of 7-10 predicts an absence of difficulty in adjusting to extrauterine life.
] |
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Aphakia
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D001035 |
[Absence of crystalline lens totally or partially from field of vision, from any cause except after cataract extraction. Aphakia is mainly congenital or as result of LENS DISLOCATION AND SUBLUXATION.
] |
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Aphakia, Postcataract
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D001036 |
[Absence of the crystalline lens resulting from cataract extraction.
] |
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Aphanizomenon
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D046890 |
[A form-genus of planktonic CYANOBACTERIA in the order Nostocales.
] |
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Aphanomyces
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D044744 |
[A genus of OOMYCETES in the family Saprolegniaceae. It causes root rot in plants and is also a pathogen of FISHES.
] |
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Aphasia
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D001037 |
[A cognitive disorder marked by an impaired ability to comprehend or express language in its written or spoken form. This condition is caused by diseases which affect the language areas of the dominant hemisphere. Clinical features are used to classify the various subtypes of this condition. General categories include receptive, expressive, and mixed forms of aphasia.
] |
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Aphasia, Broca
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D001039 |
[An aphasia characterized by impairment of expressive LANGUAGE (speech, writing, signs) and relative preservation of receptive language abilities (i.e., comprehension). This condition is caused by lesions of the motor association cortex in the FRONTAL LOBE (BROCA AREA and adjacent cortical and white matter regions).
] |
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Aphasia, Conduction
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D018886 |
[A type of fluent aphasia characterized by an impaired ability to repeat one and two word phrases, despite retained comprehension. This condition is associated with dominant hemisphere lesions involving the arcuate fasciculus (a white matter projection between Broca's and Wernicke's areas) and adjacent structures. Like patients with Wernicke aphasia (APHASIA, WERNICKE), patients with conduction aphasia are fluent but commit paraphasic errors during attempts at written and oral forms of communication. (From Adams et al., Principles of Neurology, 6th ed, p482; Brain & Bannister, Clinical Neurology, 7th ed, p142; Kandel et al., Principles of Neural Science, 3d ed, p848)
] |
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Aphasia, Primary Progressive
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D018888 |
[A progressive form of dementia characterized by the global loss of language abilities and initial preservation of other cognitive functions. Fluent and nonfluent subtypes have been described. Eventually a pattern of global cognitive dysfunction, similar to ALZHEIMER DISEASE, emerges. Pathologically, there are no Alzheimer or PICK DISEASE like changes, however, spongiform changes of cortical layers II and III are present in the TEMPORAL LOBE and FRONTAL LOBE. (From Brain 1998 Jan;121(Pt 1):115-26)
] |
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Aphasia, Wernicke
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D001041 |
[Impairment in the comprehension of speech and meaning of words, both spoken and written, and of the meanings conveyed by their grammatical relationships in sentences. It is caused by lesions that primarily affect Wernicke's area, which lies in the posterior perisylvian region of the temporal lobe of the dominant hemisphere. (From Brain & Bannister, Clinical Neurology, 7th ed, p141; Kandel et al., Principles of Neural Science, 3d ed, p846)
] |
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Aphidicolin
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D016590 |
[An antiviral antibiotic produced by Cephalosporium aphidicola and other fungi. It inhibits the growth of eukaryotic cells and certain animal viruses by selectively inhibiting the cellular replication of DNA polymerase II or the viral-induced DNA polymerases. The drug may be useful for controlling excessive cell proliferation in patients with cancer, psoriasis or other dermatitis with little or no adverse effect upon non-multiplying cells.
] |
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Aphids
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D001042 |
[A family (Aphididae) of small insects, in the suborder Sternorrhyncha, that suck the juices of plants. Important genera include Schizaphis and Myzus. The latter is known to carry more than 100 virus diseases between plants.
] |
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Aphonia
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D001044 |
[Complete loss of phonation due to organic disease of the larynx or to nonorganic (i.e., psychogenic) causes.
] |
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Aphorisms and Proverbs
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D054519 |
[Short memorable sayings in common use. They express in simple language an obvious truth, familiar experience, or advice.
] |
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Aphorisms and Proverbs as Topic
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D001045 |
[Works about short popular sayings effectively expressing or astutely professing general truths or useful thoughts.
] |
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Aphrodisiacs
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D001046 |
[Chemical agents or ODORANTS that stimulate sexual desires. (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed)
] |
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Aphthovirus
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D005537 |
[A genus of the family PICORNAVIRIDAE infecting mainly cloven-hoofed animals. They cause vesicular lesions and upper respiratory tract infections. FOOT AND MOUTH DISEASE VIRUS is the type species.
, Species of APHTHOVIRUS causing upper respiratory tract infection in horses.
] |
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Apiaceae
|
D019661 |
[A large plant family in the order Apiales, also known as Umbelliferae. Most are aromatic herbs with alternate, feather-divided leaves that are sheathed at the base. The flowers often form a conspicuous flat-topped umbel. Each small individual flower is usually bisexual, with five sepals, five petals, and an enlarged disk at the base of the style. The fruits are ridged and are composed of two parts that split open at maturity.
, A plant genus of the family APIACEAE that contains saposhnikovans, a type of POLYSACCHARIDES.
] |
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Apicoectomy
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D001047 |
[Excision of the apical portion of a tooth through an opening made in the overlying labial, buccal, or palatal alveolar bone. (Dorland, 28th ed)
] |
