(1) Confined placental chorionic mosaicism is reported in 2% of viable pregnancies cytogenetically analyzed on chorionic villi samplings (CVS) at 9-12 weeks of gestation.
(2) Proliferating cells were abundant and scattered throughout the stratified epithelium before the appearance of villi.
(3) Acclimation to 10 degrees C or 30 degrees C resulted in large differences in the dimensions of villi.
(4) With the use of the radioimmunoassay for growth hormone--releasing inhibiting factor (GIF), it was found that measurable amounts of GIF-like substance existed in the chorionic villi and decidua of pregnant women.
(5) In the partial moles there is a slow hydatidiform change that affects only some of the villi, but which seems to follow along the same lines as in complete moles.
(6) Eight women at risk of bearing a child with a genetic defect had diagnostic chorionic villi sampling.
(7) We analyzed the trophoblast subpopulations which appear on touch smears of chorionic villi morphologically and immunohistochemically, using the uterine contents of 37 cases of induced abortion.
(8) In addition, we found that carbamoylphosphate synthetase mRNA is present mainly in the epithelium of the crypts of the proximal part of the small intestine, whereas carbamoylphosphate synthetase protein is present in the epithelium of both crypts and villi.
(9) The enzyme was found to be most active in the proximal quarter intestine and in the upper third of villi.
(10) Although normal human chorionic villi-associated hydrophobic placental folate receptors (PFR) are converted to hydrophilic forms by an endogenous, EDTA-sensitive, Mg(2+)-dependent protease under serum-free conditions (Verma, R. S., and Antony, A. C. (1991) J. Biol.
(11) The interconnected central lacteals in the villi overlying the interfollicular area were connected with the lymphatic plexus in the area.
(12) Hypercellular villi are found to have no importance.
(13) This basic surface was amplified to 500 cm2 by villi and to 1 m2 by the microvilli of enterocytes.
(14) Extensive interdigitation of cytoplasmic extensions and extended villi was present in mucinous and serous clusters which appeared to strengthen cluster cohesiveness.
(15) Also in comparison to the crypts, the villi incorporated 1.5-fold more [(14)C]-acetate into sterols, a ratio similar to that describing the distribution of HMG-CoA reductase in the two cell populations.
(16) Many thousands of arachnoid villi subtend all the membranes from the intrathecal space, and many of these end in the large epidural veins.
(17) The remaining, smaller villi lose their connection with the decidua.
(18) This study compares, in 2-d-old rats, the migration rates of epithelial cells on villi of the small intestine, using two labelling methods: a single [3H] thymidine injection; and cytoplasmic labelling by a single ingestion of Pu-citrate.
(19) As invasion continued trophoblastic villi, consisting of cores of cytotrophoblast covered by a continuous layer of syncytium, penetrated deeper into the endometrium.
(20) Investigations revealed total atrophy of the villi and primary agammaglobulinemia.
Villous
Definition:
(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.