Results 261 to 270 of about 479,747 (308)

Occurrence of Human Papillomavirus DNA in Primary Lung Neoplasms

Cancer, 1992
The occurrence of human papillomavirus (HPV) DNA in primary lung carcinomas and in squamous metaplasia of the bronchus was studied using in situ hybridization techniques and commercially available biotinylated DNA probes to HPV subtypes 6/11, 16/18, and 31/33/35.
S A, Yousem, N P, Ohori, E, Sonmez-Alpan
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DNA mapping of colorectal neoplasms: A flow cytometric study of DNA abnormalities and proliferation

Gastroenterology, 1993
There is some evidence that neoplastic development and progression evolve through a multistep process associated with hyperproliferation and genetic alterations. Therefore, changes of proliferation and of cellular DNA content within the adenoma-carcinoma sequence were studied.Using a "mapping" procedure, 12 adenomas and 18 carcinomas were analyzed flow
W, Fischbach, Z, Zidianakis, G, Lüke, T, Kirchner, J, Mössner   +4 more
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[DNA methylation and neoplasms].

Casopis lekaru ceskych, 2000
DNA methylation and acetylation of histone proteins represent two global mechanisms controlling the gene expression. DNA methylation profiles alter during the development of the organism and during progression of neoplasia. Three types of alterations of the DNA methylation profiles were observed in the tumor cells: hypomethylation, hypermethylation and
J, Mares, Z, Sedlácek, P, Goetz
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Flow Cytometric DNA and Nuclear Antigen Content in Astrocytic Neoplasms

American Journal of Clinical Pathology, 1988
Simultaneous flow cytometric DNA content and proliferation-associated nuclear antigen (p105) quantitation was performed on 23 astrocytic tumors and the results correlated with histologic subtype. Three of nine anaplastic astrocytomas and one of ten glioblastomas had an identifiable aneuploid peak, while all four well differentiated astrocytomas were ...
P L, Fitzgibbons, R R, Turner, A J, Appley, P C, Bishop, P W, Nichols, A L, Epstein, M L, Apuzzo, P T, Chandrasoma   +7 more
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[DNA index and bronchopulmonary neoplasms].

Minerva medica, 1993
The authors take into consideration 40 cases of lung neoplasms in order to see the relationship between DNA index examined by image analysis, and histological grading we deduced from the results that DNA index agrees with the grading and better points out the biological pattern of the neoplasm, beharing differently in each histological type.
G, Oddi, C, D'Alessandro, D, Sacripanti, G, Capobasso   +3 more
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Detection of human papillomavirus DNA in benign and malignant sinonasal neoplasms

Cancer Letters, 2006
Infections with human papillomaviruses are divided basically into three different infection types: those producing specific clinically visible lesions, those remaining subclinical, and those being latent. The assumed infection type thought to be present in tissue specimens has influence on the conclusions that can be made from an analysis, i.e. whether
Markus, Hoffmann, Nina, Klose, Stefan, Gottschlich, Tibor, Görögh, Asita, Fazel, Claudia, Lohrey, Werner, Rittgen, Petra, Ambrosch, Elisabeth, Schwarz, Tomas, Kahn   +9 more
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Uterine stromal neoplasms: A clinicopathologic and DNA flow cytometric correlation

Human Pathology, 1991
Twenty-five uterine stromal neoplasms (five stromal nodules and 12 low-grade and eight high-grade stromal sarcomas) were studied to determine the correlation between clinicopathologic features, flow cytometric tumor DNA content and proliferative fraction, and patient outcome.
A K, el-Naggar, F W, Abdul-Karim, E G, Silva, D, McLemore, L, Garnsey   +4 more
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The Measurement of DNA Content and Ploidy Analysis in Thyroid Neoplasms

Otolaryngologic Clinics of North America, 1990
It is clear that the DNA content of endocrine cells is influenced by factors other than neoplastic change and transformation. Although it can be concluded that, in general, the DNA content of neoplasms is increased, it is less clear whether this increase in DNA content is the cause or the effect of neoplastic transformation.
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Unique DNA-binding protein in the serum of patients with various neoplasms

Nature, 1975
ONE of the major deficiencies in cancer medicine is the inability to detect low level malignant growth such as tumours at an early stage of development or residual malignant growth after therapy. Biochemical assays for malignancy have centred around carcinoembryonic antigen (CEA) and α-foetoprotein (AFP)1, both of which are proteins found normally in ...
S O, Hoch, R L, Longmire, J A, Hoch
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Hypomethylation of DNA from Benign and Malignant Human Colon Neoplasms

Science, 1985
The methylation state of DNA from human colon tissue displaying neoplastic growth was determined by means of restriction endonuclease analysis. When compared to DNA from adjacent normal tissue, DNA from both benign colon polyps and malignant carcinomas was substantially hypomethylated.
S E, Goelz, B, Vogelstein, S R, Hamilton, A P, Feinberg   +3 more
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