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Norwalk virus
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D009663 |
[The type species in the genus NOROVIRUS, first isolated in 1968 from the stools of school children in Norwalk, Ohio, who were suffering from GASTROENTERITIS. The virions are non-enveloped spherical particles containing a single protein. Multiple strains are named after the places where outbreaks have occurred.
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Norway
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D009664 |
[A country located in northern Europe, bordering the North Sea and the Atlantic Ocean, west of Sweden. The capital is Oslo.
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Norwood Procedures
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D058327 |
[A complex cardiac surgical procedure done on individuals with univentricular congenital heart malformations to establish sufficient outflow to the systemic circulation. This operation (Norwood procedure stage 1) involves disconnecting the PULMONARY ARTERY from the heart so that the right ventricle can be connected to the AORTA instead, and the creation of an alternative path for the pulmonary blood flow. The new path for arterial blood flow to the lungs is created by a systemic-to-pulmonary arterial shunt such as a MODIFIED BLALOCK-TAUSSIG SHUNT.
, A set of surgical procedures performed to establish sufficient outflow to the systemic circulation in individuals with univentricular congenital heart malformations, such as HYPOPLASTIC LEFT HEART SYNDROME, and MITRAL VALVE atresia, associated with systemic outflow obstruction. Follow-on surgeries may be performed and consist of a HEMI-FONTAN PROCEDURE as the stage 2 Norwood procedure and a FONTAN PROCEDURE as the stage 3 Norwood procedure.
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Noscapine
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D009665 |
[A naturally occurring opium alkaloid that is a centrally acting antitussive agent.
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Nose
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D009666 |
[A part of the upper respiratory tract. It contains the organ of SMELL. The term includes the external nose, the nasal cavity, and the PARANASAL SINUSES.
, Its major components are NASAL BONES; NASAL CARTILAGES; and NASAL SEPTUM.
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Nose Deformities, Acquired
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D009667 |
[Abnormalities of the nose acquired after birth from injury or disease.
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Nose Diseases
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D009668 |
[Disorders of the nose, general or unspecified.
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Nose Neoplasms
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D009669 |
[Tumors or cancer of the NOSE.
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Nosema
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D016818 |
[A genus of parasitic FUNGI in the family Nosematidae. Some species are pathogenic for invertebrates of economic importance while others are being researched for possible roles in controlling pest INSECTS. They are also pathogenic in humans.
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Nostoc
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D046937 |
[A form-genus of CYANOBACTERIA in the order Nostocales. Trichomes composed of spherical or ovoid vegetative cells along with heterocysts and akinetes. The species form symbiotic associations with a wide range of eukaryotes.
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Nostoc commune
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D050501 |
[A form species of spore-producing CYANOBACTERIA, in the family Nostocaceae, order Nostocales. It is an important source of fixed NITROGEN in nutrient-depleted soils. When wet, it appears as a jelly-like mass.
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Nostoc muscorum
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D050502 |
[A form-species of nitrogen-fixing CYANOBACTERIA, in the family Nostocaceae, order Nostocales.
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Nostrums
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D009671 |
[Medicines whose effectiveness is unproven and whose ingredients are often secret.
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Not-For-Profit Insurance Plans
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D059034 |
[Health insurance plans that are not intended to generate profit.
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Notochord
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D009672 |
[A cartilaginous rod of mesodermal cells at the dorsal midline of all CHORDATE embryos. In lower vertebrates, notochord is the backbone of support. In the higher vertebrates, notochord is a transient structure, and segments of the vertebral column will develop around it. Notochord is also a source of midline signals that pattern surrounding tissues including the NEURAL TUBE development.
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Notophthalmus
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D019185 |
[A genus of newts of the Salamandridae family found in North America in areas east of the 100th meridian. A common species is NOTOPHTHALMUS VIRIDESCENS.
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Notophthalmus viridescens
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D009673 |
[A species of newt in the Salamandridae family in which the larvae transform into terrestrial eft stage and later into an aquatic adult. They occur from Canada to southern United States. Viridescens refers to the greenish color often found in this species.
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Nova Scotia
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D009674 |
[A province of eastern Canada, one of the Maritime Provinces with NEW BRUNSWICK; PRINCE EDWARD ISLAND; and sometimes NEWFOUNDLAND AND LABRADOR. Its capital is Halifax. The territory was granted in 1621 by James I to the Scotsman Sir William Alexander and was called Nova Scotia, the Latin for New Scotland. The territory had earlier belonged to the French, under the name of Acadia. (From Webster's New Geographical Dictionary, 1988, p871 & Room, Brewer's Dictionary of Names, 1992, p384)
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Novirhabdovirus
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D029141 |
[A genus in the family RHABDOVIRIDAE, infecting numerous species of fish with broad geographic distribution. The type species is INFECTIOUS HEMATOPOIETIC NECROSIS VIRUS.
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Novobiocin
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D009675 |
[An antibiotic compound derived from Streptomyces niveus. It has a chemical structure similar to coumarin. Novobiocin binds to DNA gyrase, and blocks adenosine triphosphatase (ATPase) activity. (From Reynolds, Martindale The Extra Pharmacopoeia, 30th ed, p189)
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