(a.) Resembling, or having the form of, a sieve; pierced with holes; as, the cribriform plate of the ethmoid bone; a cribriform compress.
Example Sentences:
(1) Ultrastructural examination of a tumor with a typical cribriform pattern showed spaces of two types; the more frequent type was bounded by cells with straight plasma membranes and contained filamentous and basement-membrane-like material, and the less frequent type was surrounded by cells with numerous microvilli and contained nonfilamentous homogeneous material.
(2) The most characteristic microscopic features of the ovarian metastases were garland and cribriform growth patterns, intraluminal "dirty" necrosis, segmental destruction of glands, and absence of squamous metaplasia.
(3) the sphenoid, ethmoid, and occipital bones) and to abnormal spatial relationships between the cribriform plate and the crista galli, resulting in a positional disarrangement of the points of basal attachment of the dura matter.
(4) These included medullary, mucoid, tubular, cribriform and lobular invasive cancers, and non-invasive cancers.
(5) From 1967 to 1987, 16 patients underwent repair of chronic cerebrospinal fluid rhinorrhea in the cribriform plate or fovea ethmoidalis at the University of Iowa with an osteomucoperiosteal flap.
(6) Carbon particles entering the subarachnoid space over the vertex of the cerebral hemispheres drained along selected paravascular and subfrontal pathways in the subarachnoid space to the cribriform plate and thence into nasal lymphatics and cervical lymph nodes.
(7) In particular, adequate pre-operative radiological assessment to determine involvement of the cribriform plate region by computerized axial tomography (CAT Scanning) is emphasized since this may indicate the need for a cranio-facial surgical approach rather than a lateral rhinotomy to achieve complete removal.
(8) The cribriform meshwork appeared dense, with deposition of fibrillae and collagen or basement membrane-like material; Schlemm's canal was absent in 3 specimens; in some the lumen was narrowed or locally obliterated; and Descemet membrane-like substance covered the trabecular meshwork.
(9) Key governing factors could be requisite mechanical rigidity of the cribriform plate of the ethmoid bone and response thresholds of higher brain centers.
(10) Lacunae are small cavitary softenings observed on pathological examination and must be differentiated from cribriform cavities which are dilatations of perivascular space with or without impairment of the surrounding nervous tissue.
(11) In group A, there were 30 infiltrating ductal carcinomas (IDC); seven infiltrating lobular carcinomas (ILC); and two cases each of mixed ILC and IDC, mixed tubular carcinoma and ILC, and infiltrating cribriform carcinoma.
(12) The dura on the cranial base side was damaged and lost by infiltration of the tumor, normal olfactory bulb was not able to be identified, and the cribriform plate was broken.
(13) The craniofacial region shows an increased bony interorbital distance and a low level of the cribriform plate of the ethmoid bone.
(14) Others manifested both cribriform and basaloid patterns in juxtaposition.
(15) Aneuploidy was not significantly increased in tumours showing histological signs of greater malignancy such as cribriform-comedo type or invasive growth.
(16) Based anteriorly, the flap can cover the entire central third of the face or be transposed intracranially to correct abnormalities of the cribriform plate and dura.
(17) For tubular and cribriform, lobular and non-invasive ductal cancers a malignant diagnosis was made in 30% to 40% of cases, although inclusion of suspicious results gave identification figures of 60% to 70%.
(18) These results confirm previous studies carried out in cases of collagen disease and, in addition, demonstrate branched tubular inclusions in lymphomas, they emphasize the importance of the lymphocyte as common denominator in man, in both auto-immune diseases and in lymphoma.-The presence of cells with an indented, or cribriform nucleus in 12 cases out of 100 patients (8 cases of Sézary syndrome out of 8; 4 cases of mycosis fungoides out of 12).
(19) The cells of the cribriform layer and the outer corneoscleral trabeculae become "activated" as soon as 3-4 days after explantation, developing a large amount of endoplasmic reticulum, Golgi material, and numerous mitochondria.
(20) In this review, the clinicopathological features of papillary carcinoma, classical and its variants (follicular, solid, cribriform, variant with exuberant nodular fasciitis-like stroma, encapsulated, diffuse sclerosing, diffuse follicular, tall cell, columnar cell, oxyphil cell, "dedifferentiated", occult, latent and microcarcinoma) are summarized.
Sieve
Definition:
(n.) A utensil for separating the finer and coarser parts of a pulverized or granulated substance from each other. It consist of a vessel, usually shallow, with the bottom perforated, or made of hair, wire, or the like, woven in meshes.
(n.) A kind of coarse basket.
Example Sentences:
(1) The test is based on the ability of larvae to freely migrate through selected mesh sizes of nylon sieves and the reduced ability of larvae to migrate after preincubation with, and in the presence of, substances that inhibit or reduce larval motility.
(2) The described procedure has the advantage of not requiring either molecular sieve or affinity chromatography for purification of homogenous CRP from human sera.
(3) When the capacitation medium was supplemented with follicular fluid, the [3H]sterols were bound to HDL's and to the albumin fraction; when the latter fraction was analysed by molecular sieve chromatography, 60-70% of the radioactivity eluted in fractions with a mean molecular weight corresponding to that of human serum albumin.
(4) When deformability was measured by filtration through 3-mum polycarbonate sieves, marked decreases in deformability were found in complement-coated erythrocytes.
(5) Rat liver cathepsin D (EC 3.4.23.5) was purified using precipitation technique, ion exchange chromatography, molecular sieve chromatography and isoelectric focusing.
(6) Analysis of the CNBr peptides on an HPLC sieving column confirmed that the electrophoretically abnormal peptides were of a higher molecular weight than were control peptides.
(7) The half-life of the solubilized oxidoreductase stored at 2-4 degrees C in the presence of 25% glycerol at pH 8.6 is approximately 30 h. The oxidoreductase contains a flavoprotein identifiable by its fluorescence spectrum for FAD which binds weakly to concanavalin A-Sepharose and elutes from gel sieving columns at a molecular weight range of approximately 51,000.
(8) passing through a 1.18 mm sieve during wet sieving) from the reticulo-rumen were negatively related to dimensions of particles, with greater ease of outflow for legume than for grass particles of the same length or diameter.
(9) Its molecular weight, determined by molecular sieving, was close to 36 kDa.
(10) The degree of fragmentation was judged first by eye during the experiment and then by both microscopy and sieving of the debris.
(11) Further purification of the 50K collagen by molecular sieve and high-performance liquid chromatography resulted in the isolation of two-non-disulfide-bonded polypeptides, 50K-A and 50K-B, which were susceptible to several neutral proteases, including bacterial collagenase.
(12) To demonstrate this point, the assay was applied to the protein fractions recovered from a molecular sieve column.
(13) The sieving of chylomicrons, remnants and other lipoproteins by the sinusoidal endothelium of the liver may thus play an important role in lipid transport, affecting the balance of various lipoprotein moieties which in turn may affect the relationship of dietary lipids to various hyperlipidaemias and atherosclerosis.
(14) Porcine cerebral microvessels were isolated by differential sieving and centrifugation and were characterized by microscopic examination and marker enzyme enrichment (gamma-glutamyltransferase; EC 2.3.2.2).
(15) Dextran sieving studies were performed before and after intravenous administration of indomethacin to control rats and to nephritic rats with heavy proteinuria.
(16) Cells dissociated by trypsinization and sieving are metabolically more active than cells separated mechanically (sieving only).
(17) Mannitol infusion resulted in a significant increase in urine volume and fractional excretion of sodium, but glomerular filtration rate, albumin excretion rate, and the sieving coefficient for albumin remained stable.
(18) The flours are strained through a 425 microns sieve, then pelletized and measured.
(19) The Mr of agarase IIb was 63 000 as determined by analytical ultra-centrifugation, polyacrylamide gel electrophoresis in sodium dodecyl sulphate and molecular sieve chromatography on Sepharose 4B in 6M Gdn-HCl.
(20) The IL-1 induced chondrocyte PLA2 has a molecular weight of approximately 10 kDa, as determined by molecular sieve G75 column chromatography.