(a.) Abounding in, or covered with, fine hairs, or a woolly substance; shaggy with soft hairs; nappy.
(a.) Furnished or clothed with villi.
Example Sentences:
(1) Furthermore, 75% of cases of intestinal metaplasia in gastric mucosa and 30% of tubular adenomas, 50% of villous adenomas and 70% of tubulovillous adenomas in the colon co-expressed Lea and Leb antigens.
(2) Two recently encountered cases of villous adenoma in the rectum had a distinctive pattern on CT.
(3) A case is presented of tubulo-villous adenoma in the vagina of a 43-year-old woman.
(4) Villous tumors of the duodenum are rare, but treatment may be problematic because of their association with invasive adenocarcinoma.
(5) A 68-year-old man with known villous adenoma of the rectum had recurrent severe episodes of dehydration and electrolyte loss, misinterpreted as being due to "chronic pyelonephritic".
(6) It has been reported that villous trophoblasts are negative and extravillous trophoblasts are positive for HLA-A, B,C, but the expressed HLA-A,B,C molecule has been noted to lack their polymorphic determinants.
(7) Intrinsic factor-mediated uptake of cobalamin could not be demonstrated using ileal crypt or jejunal villous or crypt cells.
(8) There were 67 adenocarcinomas, 7 squamous cell carcinomas and one each of villous adenoma and carcinoid.
(9) Placental HGF was expressed strongly in the villous syncytium, extravillous trophoblast, and amnionic epithelium, and, to a lesser degree in endothelial cells and villous mesenchyme.
(10) It was found that almost all the LPC in the villous core of the small intestine express Ia antigen, and that in this area IgA-containing B cells also occur in unexpectedly large numbers.
(11) It was markedly lower in adenocarcinomas than in villous polyps.
(12) The mean value of outer villous perimeter, mean chord length and per cent area were respectively 46.9 mu (X 1000 mu 2) with a standard deviation of 4.6, 57.7 mu (standard deviation 9.3) and 66.1% (standard deviation 7.4).
(13) Histological examination of biopsy specimens revealed jejunal mucosal villous atrophy compatible with coeliac disease in 13 of 122 relatives.
(14) No differences were observed in the villous heights or crypt depths between feeding groups, but both showed an increase in intraepithelial lymphocyte number during the 1st week.
(15) On biopsy immediately after worm removal, samples of the main pulmonary arteries showed severe intimal proliferations with villous or papillary protrusion into the lumen.
(16) Correlation of cell culture results and microscopic examination based on conventional villous histological criteria showed an overall sensitivity of 45.1% for histology in detecting chromosomal anomalies.
(17) Differential expression of the class II MHC subregion products was observed on the villous stroma and chorionic fetal endothelium; DR and DP were always expressed but DQ in some cases was heterogeneous.
(18) At both ages, the maternal basal plate tissue released approximately three times more IGF I than the chorionic villous tissue.
(19) A histological examination of her synovial tissue showed prominent villous proliferation of the synovial cells, prominent vascularity throughout and an inflammatory infiltrate composed of abnormal mononuclear cells.
(20) Colostral immunoglobulins were located in villous region of the small intestine where they were found either in the lamina propria, in the epithelial cells or on the mucosal surface of the epithelial cells.
Villus
Definition:
(n.) One of the minute papillary processes on certain vascular membranes; a villosity; as, villi cover the lining of the small intestines of many animals and serve to increase the absorbing surface.
(n.) Fine hairs on plants, resembling the pile of velvet.
Example Sentences:
(1) The human placental villus tissue contains opioid receptors and peptides.
(2) The mean villus height for each rat was calculated and compared by two-way ANOVA to determine the effects of time and treatment.
(3) In the Netherlands, researchers studied the medical records of and followed-up on 151 women of advanced maternal age (at least 36 years old) who underwent amniocentesis or chorionic villus sampling (CVS) and elected to terminate the pregnancy due to an abnormal genetic finding (105 and 46 women, respectively) at Academic Hospital Rotterdam-Dijkzigt between January 1980 and December 1989.
(4) There was also a reduced crypt cell proliferation, a reduced villus height and a decreased ALP activity in the ileal mucosa.
(5) The following examinations could be proposed: in high risk cases determined before pregnancy, a chorionic villus sampling should be done between the 9th and 11th weeks of gestation; in low risk cases such as advanced maternal age, a first trimester chorionic villus sampling or a second trimester amniocentesis could be chosen; in the case of Down's syndrome, warning signs, for example ultrasonographic or biological parameters, a second trimester placental biopsy to relieve the parents' anxiety; in high risk cases such as ultrasonographic malformations, late placental biopsy or cordocentesis.
(6) Explants maintained villus-to-crypt ratio between 1:1 and 1.5:1 for 48 hours.
(7) The two membrane fractions obtained from villus cells and considered to be lateral-basal membranes were enriched for Na+,K+-ATPase activity, but one also showed enrichment in glycosyltransferase activity.
(8) The molecular mechanism of calcium transport in the villus cells has been examined.
(9) Succinylated wheat germ agglutinin bound more to crypt than to villus enterocytes.
(10) Altogether 10 reports on the safety of chorionic villus sampling, either by the transcervical (TC) or the transabdominal (TA) approach, were reviewed and combined with our own data.
(11) To address the evolving trends in the choice of transabdominal or transcervical chorionic villus sampling (CVS) at a teaching hospital and to evaluate the influence of gestational age on the approach chosen.
(12) Kinetic analysis is compatible with the suggestion that the glucose carriers are predominantly near the tip of the villus, whereas those for galactose and 3-O-MG are located along the entire villus and the Km * of their carriers at the tip is lower than their Km * towards the base of the villus.
(13) (ii) In young sucklings (10 days old), SC was virtually absent in both villus and crypt cells, but its concentration progressively increased in weanling rats and reached adult levels by day 40 postpartum.
(14) In both cases first trimester chorionic villus sampling and DNA haplotype analysis predicted that the fetus is a carrier for CF, and in the doubly affected family a carrier for beta-thalassaemia as well.
(15) In mammalian small intestine absorptive cells are known to migrate from the villus base to the villus tip from which they slough.
(16) Immunofluorescence studies employing monoclonal antibodies specific for villus and crypt cells in vivo, and various enzyme assays, have demonstrated a level of differentiation and maturation of the cultured epithelial cells similar but not identical to that of suckling intestinal mucosa in vivo.
(17) Features suggestive of a latent gluten-sensitive enteropathy were found in one of the other six DH patients; he developed disaccharidase deficiencies and villus atrophy when 20 g gluten was added to his usual gluten-containing diet.
(18) Chorionic villus sampling (CVS) has made possible the first-trimester prenatal diagnosis of CF.
(19) Integrity of the digestive tissue is dependent on continuous coordination between cell growth and maturation along the crypt- villus axis.
(20) Sucrase-isomaltase (SI) is an enterocyte-specific, brush-border enzyme that has little activity in crypt cells and maximal activity in low and mid villus cells.