What's the difference between nucleole and nucleoli?
Nucleole
Definition:
(n.) The nucleus within a nucleus; nucleolus.
Example Sentences:
(1) Morphologically, all cases showed a mixture of small lymphocytes and larger nucleolated 'prolymphocytes' although the degree of prolymphocytoid change was unrelated to immunological patterns.
(2) A cytologic comparison showed that in MBCL areas there were more large transformed (prominent nucleolated) MBCs (P = .003), a higher mitotic rate (P = .03), and more nuclear irregularities (P = .007) than were present in the reactive group.
(3) Certain analogy in the cytochemical behaviour between the nucleolous and the chromatin under various conditions of hydrolysis leads to the suggestion that the nucleolar basic proteins demonstrated should be in the form of a ribonucleoprotein complex, probably of the pre-ribosomal material of the nucleolus.
(4) glia, endothelial cells) as well as tangential, non-nucleolated sections through neuronal perikarya recognized and excluded from further analysis without requiring interactive procedures.
(5) All lesions were composed of partially necrotic, nested, or sheet-like arrays of mitotically active, nucleolated large cells that were at least twice the size of those seen in small cell carcinomas.
(6) Analysis of electronic pictures shows an aberrant structure of the nucleus, a very dense nuclear membrane and fragmented nucleoles.
(7) Other specific enzyme localizations included the mitochondria matrices, nucleoles, condensed nuclear chromatin, periaxolemmal spaces in nerve bundles and sometimes the cleft of neuro-glandular junctions.
(8) Within the period between 12 and 24 h after the mercury bichloride injection, intracellular reparative processes are observed, in addition to destruction, in partially damaged but viable nephrocytes, which is confirmed by the enlargement of the nucleolic size.
(9) They are different from the usual viral type particles connected with Australia antigen and appear to be formed of dense, granulofilamentous accumulations, scattered at random in the nucleus, sometimes in close proximity of nucleoles and nuclear bodies.
(10) Since the blastic crisis in chronic myeloid leukaemia is characterized by the appearance of an increased number of immature, highly nucleolated cells, these findings lend support to the hypothesis that the duplication of the Ph1 represents a feature possibly favoured by the pathological persistence of nucleolar RNA-rich structures in the metaphase.
(11) By means of toluidine blue staining, until now being used for the verification of nucleoli and their different shapes only in experimentations on animals, a good correlation of the nucleole analysis in the peripheral blood picture and in the lymph node biopsies with the clinical progress of the disease has been observed.
(12) A 'decision tree' classification based on the percentage of nucleolated nuclei, percentage of nuclei with two or more nucleoli and mean major nuclear diameter was adopted.
(13) Considerable differences are to be found between the micromyeloblastoid and lymphoblastoid paramyeloblasts as regards the size of the nucleolar "apparatus", both in the absolute average values and in the index showing the ratio of the nucleolous of the remaining nuclear surface (4.76% for myeloblastoid and 9.96% for lymphoblastoid paramyeloblasts).
(14) Among all the quantitative features, the most evident changes in the nucleolar size were expressed by the nucleolar hypertrophy index after including in the calculation only those nucleoli with a diameter larger than 3 arbitrary units, whereas the percentage of nucleolated nuclei and the proportion of nuclei with two and three nucleoli best represented the modifications to the frequency.
(15) The performance of the profile recognition procedure was evaluated using 426 nucleolated and non-nucleolated profiles of different types of neurons in the primary visual cortex of the rat.
(16) Based on the well-known correlations between the nucleolus organization and the association pattern, the results seem to indicate a compensation mechanism among the nucleoles organizing regions (NOR's) which keeps the supply of nucleolar material constant and simultaneously causes a higher association tendency between the remaining acrocentric chromosomes.
(17) Nucleolated profiles were recognized as such with a 91% accuracy, non-nucleolated profiles were rejected correctly in 90% of cases.
(18) The nucleolated nucleus is surrounded by dictyosomes containing small vesicles, which contribute to form reserve material.
(19) The overlap index showed that the percentages of marginated nucleoli and nucleolated nuclei are the two best discriminatory features between adenoma and carcinoma.
(20) Moderate leucopenia with lymphocytosis was present, with frequent hairy cells carrying one prominent nucleole.
Nucleoli
Definition:
(pl. ) of Nucleolus
Example Sentences:
(1) Nutritionally rehabilitated animals had similar numbers of nucleoli to control rats.
(2) In both cases, female cells presented more nucleoli than the respective male cells.
(3) These early hyperplastic lesions revealed stellate-shaped dilated bile canaliculi lined by blebs and abnormally thick elongated microvilli, a decreased number of microvilli on the sinusoidal surface, a marked increase in smooth endoplasmic reticulum, large nucleoli, and bundles of pericanalicular microfilaments.
(4) Moderately differentiated tumor revealed a wider range of nucleus size, less clustering (coefficient--3.59) and more hyperchromatic (70.1%) and "bare" (49.4%) nuclei and large nucleoli (22.2%).
(5) Glandular cells have unusually developed nucleoli, many ribosomes, lysosome-like and residual bodies.
(6) The respective positions of these chromosomes were examined in 30 growing and 32 resting fibroblasts from reconstructed nuclei, using nucleoli and the Barr body as ultrastructural markers.
(7) Differences in the mean volume values of nucleoli, fibrillar centers and the RNP-part between some cell populations are sufficiently well pronounced.
(8) Treatment of the nucleoli with 80 mM Tris-HCl (pH 7.5) -- 0.15 M NaCl did, however, eliminate silver binding.
(9) These findings suggest that the presence of features such as large prominent nucleoli, tumor growth in sheets, individual-cell necrosis, and nuclear pleomorphism may be used to predict recurrence of subtotally resected meningiomas that would not be classified as malignant by traditional criteria.
(10) After preparation with DNase and staining with gallocyanine chromalumn the nucleoli in heart muscle nuclei were specifically presented and their number per nucleus as well as their area values were demonstrated.
(11) The ultrastructural study of nucleoli and ribonucleoprotein-containing structures in human seminiferous tubules revealed that the nucleoli of spermatogonia, spermatocytes and Sertoli cells exhibited a tripartite structure consisting of: a fibrillar center, a compact granular portion, and a reticular portion containing both pars fibrosa and pars granulosa.
(12) This technique contrasted the fibrillar component and the granular component in interphase nucleoli as a reflection of the degree of packing.
(13) In addition, phosphorylation of the 110-kDa protein in liver nucleoli from rats fed a protein-free diet showed a lower sensitivity to heparin than that in control rat liver nucleoli.
(14) When protein biosynthesis is inhibited by either cycloheximide of puromycine, the nucleolar RNA synthesis of Ehrlich ascites tumor cells decreases by approximately 70% within 1 h, while the removal of these protein synthesis inhibitors causes a rapid recovery of nucleolar RNA synthesis, largely within 1 h. A similar pattern of decrease and recovery of endogenous RNA polymerase activity in isolated nucleoli or in nuclei (in the presence of alpha-amanitin) may be demonstrated after addition and removal of these drugs.
(15) Electron microscopically, the tumor cell nuclei were oval or polygonal and sometimes slightly invaginated, with a few prominent nucleoli.
(16) The significant correlation between number of mitoses, size and staining of nucleoli and the thermographic results emphasizes that, besides vascularization and altered thermo-regulatory functions, the metabolism of the tumor itself contributes to the temperature differences.
(17) Cells labeled with quinacrine had a large, phase bright nucleus with prominent nucleoli, surrounded by a phase dark perinuclear ring.
(18) 32S rRNA accumulates to some extent in the nucleoli of ts 422E.
(19) A 125-kilodalton (kDa) phosphoprotein was isolated from nucleoli of Novikoff hepatoma cells in the presence of various inhibitors of proteases, alkaline phosphatase, and RNase.
(20) Modified nucleoli bind fluorescein-conjugated nonimmune serum proteins, as shown by calcium ion-dependent fluorescence.