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Biomedical subjects

M Gravell

Publications and source records attributed to M Gravell.

At least 55 records · Page 3Linked to original sources
PubMed1977

Detection of antibody to rubella virus by enzyme-linked immunosorbent assay.

Titers of antibody to rubella virus in 68 human sera were compared by hemagglutination inhibition and enzyme-linked immunosorbent assay (ELISA). In general, the titers measured by ELISA were higher than those found by hemagglutination inhibition. Although the titers differed, the two methods showed parallel trends. Use of purified rubella virus and addition of 1% bovine serum albumin to the test wash solution aided in reducing false-positive titers in ELISA.

Animals↗
PubMed1976

Epstein-Barr virus in an American patient with Burkitt's lymphoma: detection of viral genome in tumor tissue and establishment of a tumor-derived cell line (NAB).

Epstein-Barr virus (EBV) DNA (17.7 genome equivalents/cell) was found in tumor tissue from an American patient with Burkitt's lymphoma who had never traveled outside the United States. A lymphoid cell line (NAB) containing the EBV genome was established from tumor tissue from this patient; characteristics of this cell line were described. Previous Burkitt's tumors found in Americans and examined by molecular hybridization were negative for EBV DNA. Our results suggested that EBV is associated with at least some American Burkitt's tumors.

Adolescent↗
PubMed1976

A search for herpes simplex virus type 2 markers in cervical carcinoma.

Carcinoma of the uterine cervix is now clearly recognized as the second most common malignant disease of women in the United States. Epidemiological studies provided the first suggestive evidence that an infectious, venereally transmitted agent was involved in this disease in either a causal or a casual fashion. Later cytohistopathological, virological, and seroepidemiological studies confirmed this observation and identified the suspect agent as herpes simplex virus type 2. Recently, several laboratories have directed their energies towards establishing lines of direct evidence linking herpes simplex virus type 2 etiologically with human cervical carcinoma. Some of these approaches have involved attempts to detect infectious virus, viral components, or virus-specific modifications in neoplastic cervical tissues. Results obtained utilizing human tissues will be reviewed and discussed.

Antibodies, Viral↗
PubMed1969

Ultrastructure and sequential development of infectious pancreatic necrosis virus.

The morphology and sequential development of infectious pancreatic necrosis (IPN) virus, a pathogen of trouts, were studied by electron microscopy. Mature virions were seen in the cytoplasm of infected cells incubated at 24 C as early as 6 hr after infection. These virions were hexagonal in profile and approximately 55 nm in diameter. Generally between 8 to 10 hr after infection, virus crystals of various sizes were occasionally observed. Although virus replication did not appear to be confined to a particular cytoplasmic locus, mature virions were sometimes seen in association with unidentified tubular structures approximately 45 nm in outside diameter. Negative stains of virus revealed unenveloped icosahedra approximately 65 nm in diameter with probably 92 capsomeres. Contrary to a previous communication which reported IPN virus to have picornavirus-like morphology, we found it to morphologically resemble members of the reovirus group.

Animals↗
PubMed1966

Lymphocystis virus: isolation and propagation in centrarchid fish cell lines.

A virus from fish with lymphocystis disease was isolated in fish cell cultures. Eleven serial transfers were made and the pathognomonic lymphocystis cells were produced in vitro in each transfer. Fish inoculated with 6th- and 9th-passage material developed the disease, and virus was reisolated front them.

Animals↗