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Mercenaria
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D049891 |
[A genus of hard-shelled clams in the family Veneridae, class BIVALVIA, commonly called quahogs. They are found just below the surface in the subtidal or lower intertidal coastal waters.
] |
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Mercuribenzoates
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D008626 |
[Mercury-containing benzoic acid derivatives.
] |
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Mercuric Chloride
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D008627 |
[Mercury chloride (HgCl2). A highly toxic compound that volatizes slightly at ordinary temperature and appreciably at 100 degrees C. It is corrosive to mucous membranes and used as a topical antiseptic and disinfectant.
] |
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Mercury
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D008628 |
[A silver metallic element that exists as a liquid at room temperature. It has the atomic symbol Hg (from hydrargyrum, liquid silver), atomic number 80, and atomic weight 200.59. Mercury is used in many industrial applications and its salts have been employed therapeutically as purgatives, antisyphilitics, disinfectants, and astringents. It can be absorbed through the skin and mucous membranes which leads to MERCURY POISONING. Because of its toxicity, the clinical use of mercury and mercurials is diminishing.
] |
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Mercury Compounds
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D017669 |
[Inorganic compounds that contain mercury as an integral part of the molecule.
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Mercury Isotopes
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D008629 |
[Stable mercury atoms that have the same atomic number as the element mercury, but differ in atomic weight. Hg-196, 198-201, and 204 are stable mercury isotopes.
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Mercury Poisoning
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D008630 |
[Poisoning that results from chronic or acute ingestion, injection, inhalation, or skin absorption of MERCURY or MERCURY COMPOUNDS.
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Mercury Poisoning, Nervous System
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D020262 |
[Neurologic disorders associated with exposure to inorganic and organic forms of MERCURY. Acute intoxication may be associated with gastrointestinal disturbances, mental status changes, and PARAPARESIS. Chronic exposure to inorganic mercury usually occurs in industrial workers, and manifests as mental confusion, prominent behavioral changes (including psychosis), DYSKINESIAS, and NEURITIS. Alkyl mercury poisoning may occur through ingestion of contaminated seafood or grain, and its characteristic features include POLYNEUROPATHY; ATAXIA; vision loss; NYSTAGMUS, PATHOLOGIC; and DEAFNESS. (From Joynt, Clinical Neurology, 1997, Ch20, pp10-15)
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Mercury Radioisotopes
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D008631 |
[Unstable isotopes of mercury that decay or disintegrate emitting radiation. Hg atoms with atomic weights 185-195, 197, 203, 205, and 206 are radioactive mercury isotopes.
] |
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Mercury, Planet
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D018537 |
[The first planet in order from the sun. It has no known natural satellites. It is one of the four inner or terrestrial planets of the solar system.
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Meridians
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D016740 |
[Classical loci in ACUPUNCTURE. They are main and collateral channels, regarded as a network of passages, through which vital energy (Qi) circulates and along which acupoints (ACUPUNCTURE POINTS) are distributed. The meridians are a series of 14 lines upon which more than 400 acupoints are located on the body. (The Pinyin Chinese-English Dictionary, p. 359; Dr. Wu Lancheng, Academy of Traditional Chinese Medicine, Beijing)
] |
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Meristem
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D018519 |
[A group of plant cells that are capable of dividing infinitely and whose main function is the production of new growth at the growing tip of a root or stem. (From Concise Dictionary of Biology, 1990)
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Merkel Cells
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D018862 |
[Modified epidermal cells located in the stratum basale. They are found mostly in areas where sensory perception is acute, such as the fingertips. Merkel cells are closely associated with an expanded terminal bulb of an afferent myelinated nerve fiber. Do not confuse with Merkel's corpuscle which is a combination of a neuron and an epidermal cell.
] |
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Merkel cell polyomavirus
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D059965 |
[A species of POLYOMAVIRUS suspected to be the cause of most cases of MERKEL CELL CARCINOMA, a rare but highly lethal form of skin cancer.
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Mermithoidea
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D008632 |
[A superfamily of nematodes of the order ENOPLIDA. Characteristics include a reduced alimentary tract and the presence of a trophosome. Its organisms can be present in the human intestine through ingestion of unwashed or contaminated raw vegetables.
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Meropenem
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D000077731 |
[A thienamycin derivative antibacterial agent that is more stable to renal dehydropeptidase I than IMIPENEM, but does not need to be given with an enzyme inhibitor such as CILASTATIN. It is used in the treatment of bacterial infections, including infections in immunocompromised patients.
] |
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Merozoite Surface Protein 1
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D020066 |
[A surface protein found on Plasmodium species which induces a T-cell response. The antigen is polymorphic, sharing amino acid sequence homology among PLASMODIUM FALCIPARUM; PLASMODIUM CHABAUDI; PLASMODIUM VIVAX; and PLASMODIUM YOELII.
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Merozoites
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D052940 |
[Uninuclear cells or a stage in the life cycle of sporozoan protozoa. Merozoites, released from ruptured multinucleate SCHIZONTS, enter the blood stream and infect the ERYTHROCYTES.
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Mersalyl
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D008634 |
[A toxic thiol mercury salt formerly used as a diuretic. It inhibits various biochemical functions, especially in mitochondria, and is used to study those functions.
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Mesalamine
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D019804 |
[An anti-inflammatory agent, structurally related to the SALICYLATES, which is active in INFLAMMATORY BOWEL DISEASE. It is considered to be the active moiety of SULPHASALAZINE. (From Martindale, The Extra Pharmacopoeia, 30th ed)
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