What's the difference between mucin and mucous?

Mucin


Definition:

  • (n.) See Mucedin.
  • (n.) An albuminoid substance which is contained in mucus, and gives to the latter secretion its peculiar ropy character. It is found in all the secretions from mucous glands, and also between the fibers of connective tissue, as in tendons. See Illust. of Demilune.

Example Sentences:

  • (1) This cell type often showed supranuclear lysozyme reactivity and apical neutral mucins, sialomucins, and sulphomucins in variable amounts.
  • (2) The influence of mucin on the corrosion behaviour of seven typical dental casting alloys was investigated.
  • (3) This study suggests that amylopectin sulfate may bind to gastric mucins only under conditions of low pH.
  • (4) The acylation of salivary mucin with fatty acids and its biosynthesis was investigated by incubating rat submandibular salivary gland cells with [3H]palmitic acid and [3H]proline.
  • (5) The most important variable for anastomotic recurrence was mucin histochemical changes at the resection margins according to the Wald statistic value.
  • (6) Granules in a few cells also contained sulphated mucin.
  • (7) Assay of CA 125 has become a routine method in the follow-up of nonmucinous ovarian cancer, and tumour-associated trypsin inhibitor (TATI) shows promise of being useful for mucinous ovarian cancer.
  • (8) Goblet cells and mucin production appeared only on the 20th-21st day of gestation.
  • (9) A detailed morphologic analysis demonstrated that two of these six cases were incorrectly diagnosed as being pure mucinous carcinomas--they were actually of the mixed type.
  • (10) Two mucins were isolated from bovine submandibular glands and termed major and minor on a quantitative basis.
  • (11) The development of assays using a panel of monoclonal antibodies (MAbs) or lectins directed against the different carbohydrate epitopes expressed on this mucin may provide better diagnostic accuracy for pancreatic cancer than current marker assays which rely on detection of a single epitope.
  • (12) Structural relationships between colonic mucin species were assessed using a library of monoclonal antibodies (MAbs) directed against purified human colonic mucin (HCM).
  • (13) All types of hyperplasia were frequently seen in areas adjacent to carcinomas, including ductal, pleomorphic, mucinous, adenosquamous, small and spindle cell and cystadenocarcinomas.
  • (14) In the remaining five strains (Streptococcus gordonii G9B and 10558, S. sanguis 10556, and Streptococcus oralis 10557 and 72-41), interactions with multiple salivary components, including the low-molecular-weight salivary mucin, highly glycosylated proline-rich glycoproteins, and alpha-amylase, were detected.
  • (15) Discontinuance of the acceptable brand of mucin made it necessary to search for an effective alternative.
  • (16) This length corresponds to an extended mucin peptide of about 450 kDa.
  • (17) Mucin histochemistry revealed an intestinal type of cancer.
  • (18) After an overnight fast, luminal and tissue mucin antibody reactivities were determined in the rat stomach, colon and small intestine.
  • (19) Primary mucinous carcinoma is a rare sweat-gland neoplasm of the skin with a tendency to grow slowly.
  • (20) Our results suggest that substantial amounts of ocular mucous glycoprotein are present in the eyes of patients with CP and SJS, diseases which have been previously described as mucin-deficient dry eye syndromes.

Mucous


Definition:

  • (a.) Of, pertaining to, or resembling, mucus; slimy, ropy, or stringy, and lubricous; as, a mucous substance.
  • (a.) Secreting a slimy or mucigenous substance; as, the mucous membrane.

Example Sentences:

  • (1) Ten milliliters of the solution inappropriately came into contact with nasal mucous membranes, causing excessive drug absorption.
  • (2) These data suggest that basophilic cell function in the superficial mucous layer in the nose is of greater significance in the development of nasal symptoms in response to nasal allergy than either mucociliary activity or nasal mucosal hypersensitivity to histamine.
  • (3) Light microscopy of both apneics and snorers revealed mucous gland hypertrophy with ductal dilation and focal squamous metaplasia, disruption of muscle bundles by infiltrating mucous glands, focal atrophy of muscle fibers, and extensive edema of the lamina propria with vascular dilation.
  • (4) The activity of GP sulfotransferase was mainly distributed in the microsomal fraction, and was proportional to the incubation time, substrate (mucous GP) concentration and [35S]-PAPS concentration.
  • (5) In males, the percentage of animals having mucous cells increased with sexual maturation and attained 100 per cent at age six months.
  • (6) Chronic bronchitis, mucous hypersecretion, and liver disease, as well as a family history of emphysema, are associated conditions.
  • (7) The histological changes by light and electron microscopy in these patients demonstrates the metaplastic changes of the basal cell of the mucosa differentiating into mucous and keratin cells.
  • (8) Confirmatory tests of sinus disease are transillumination (useful in adolescents if interpretation is confined to the extremes--normal or absent); radiographic findings of opacification, mucous membrane thickening, or an air-fluid level; and sinus aspiration (indicated for severe pain, clinical failures, or complicated disease).
  • (9) In 40 patients with insulin-dependent diabetes mellitus, the number of gastrin cells in the mucous membrane of the antrum of the stomach was measured by immunohistochemistry according to the method of L. Sternberger.
  • (10) Incorporation of [2-14C] sodium acetate into 7-dehydrocholesterol ketoderivative, cholesta-4,7-dien-3-on, was studied in the tissues of the rat stomach secretory and esophageal parts and in the mucous and serous membranes of the small intestine.
  • (11) Microscopic examination showed that the tumor was an invasive papillary growth with numerous signet-ring cells and mucous production.
  • (12) As to the tissular and cellular levels, the possibility of a regulation of the enzymatic and transport systems of the microvilli by means of substrates contained in the mucous membrane of the small intestine and endogenous substances (permein and antipermein) was evinced.
  • (13) In the stationary group the bronchograms showed only a mild mucous reaction, and peripheral filling was generally good.
  • (14) Cellular mucus of the mucous cells from gastric epithelium and surface mucus from gastric mucosa were obtained by perfusion in vivo of Ghosh-Lai rat stomachs with 2 M NaCl.
  • (15) We concluded that abdominal irradiation caused the invasion of E. cloacae from the mucous membrane of the intestine and inhibited formation of lung metastases.
  • (16) Bronchoscopy may then be carried out in order to study the area surrounding the diverticular orifice more closely, and to establish the condition of its mucous lining.
  • (17) In the cells of the cardiac region (which occupy 65% of the stomach) at least three types of mucous droplet are present.
  • (18) The study using the urease test on mucous biopsies from the antral gastric part and from the duodenum of patients with chronic opisthorchiasis with endoscopic evidence of antral gastritis and gastroduodenitis, and from noninvaded patients with gastritis and duodenitis, some of them with the gastric or duodenal ulcers showed that the test was positive.
  • (19) A case of mucous metaplasia of mesothelium in an 80 year old woman is described.
  • (20) Since vitamin A is involved in the promotion of mucous-secreting cells, the premature neonate may be at greater risk than the term infant for diseases involving the mucosal epithelium, including necrotizing enterocolitis.

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