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Biomedical subjects

W D Winters

Publications and source records attributed to W D Winters.

At least 91 records · Page 5Linked to original sources
PubMed1979

Human adenovirus antibody in sera of normal and tumour-bearing dogs.

Serum specimens from 42 normal dogs and 42 with untreated malignant tumours were assayed for the presence of antibodies to human adenovirus types 5, 21 and 31 and to infectious canine hepatitis (ICH) virus. Radioimmunoassays using human adenovirus antigens showed that 71 per cent (30/42) of all dogs with tumours, but only 19 per cent (8/42) of all normal dogs, were positive for human adenovirus antibody. Canine sera reactive with antigens of one human adenovirus type in radioimmunoassays were also reactive with antigens of the other two types. Dogs bearing malignant lymphoma or squamous cell carcinoma tumours had higher levels of antibody against adenovirus type 5 antigens. Human adenovirus type 5 was neutralised by sera from four tumour-bearing and two normal dogs, while sera from two normal and five tumour-bearing dogs were positive in immunodiffusion tests with human adenovirus antigens. Levels of ICH antibody in sera of normal adult dogs and adult dogs with tumours were not markedly different when measured by radioimmunoassays. Likewise, sera from these two groups of dogs had similar ranges of ICH neutralising antibody titres. In contrast, levels of ICH antibody detected by the serological assays in sera from non-pet, non-vaccinated pups were either markedly low or absent. Possible explanations for the observed increased levels of human adenovirus antibody in sera of tumour-bearing canine pets are discussed.

Adenocarcinoma↗
PubMed1979

Sensitivity of human oral tumor cells to human adenovirus.

Human cells in early passage cultures of benign oral tumors, normal oral tissues, normal lung tissues and, especially, in long-term established oral carcinoma cultures were highly susceptible to infection by human adenovirus types 5, 21, and 31. In contrast, replication of each adenovirus type was markedly limited in inoculated cells of newly-established oral squamous cell carcinoma cultures.

Adenoviruses, Human↗
PubMed1978

Viruses and cancer.

Explore the source record for details and available documents.

Antibodies, Neoplasm↗
PubMed1977

Opiate tolerance: independence from immunological mechanisms.

The possibility that immunological mechanisms are involved in the development of tolerance to the analgesic effect of morphine was investigated, focusing on several immunological parameters. The data indicate that transfer of spleen cells and bone marrow cells obtained from morphine-tolerant donors into nontolerant syngeneic recipient mice did not result in the transfer of tolerance to the analgesic activity of morphine. Furthermore, the data indicate that the thymus, which is essential for the immunological response to many antigens, was not involved in the induction of tolerance to the opiate since tolerance was induced in thymectomized mice as well as in genetically athymic mice. The results suggest that immunological factors do not seem to play a crucial role in the phenomenon of tolerance to the analgesic activity of morphine.

Analgesics↗
PubMed1976

IgE levels in sera of cancer patients.

Immunoglobulin E (IgE) was measured in the sera of 18 healthy adult volunteer donors, 67 adults with various types of solid neoplasms, and 17 adults with clinical allergy by means of a double-antibody radioimmunoassay. There was no siginificant difference in the geometric mean serum IgE level between all cancer subjects and the healthy control subjects except that cancer and noncancer patients who had definite clinical allergies showed an increased mean IgE level. Similarly, there was no significant difference in the mean IgE level of any of the six cancer subgroups studied when compared to the control mean. Thus, there was no evidence reflected in serum levels that IgE plays a role in the immunopathology of the cancer population tested.

Carcinoma↗
PubMed1976

Effects of drugs on the electrical activity of the brain: anesthetics.

The major concepts presented in this review can be summarized as follows: 1. There is a multidirectional continuum of anesthetic states--some represented by CNS excitation and others by depression. 2. The reticular activating system is influenced by all anesthetics; some inhibit its action (stage III) and some hyperexcite the system resulting in a function disorganization (stage II-C). 3. Some agents traverse both excitation and depression, diethyl ether (I, II, III). 4. Others induce only stage II--catalepsia, e.g. nitrous oxide, ketamine, gamma-hydroxybutyrate, alpha-chloralose, phencyclidine, trichlorethylene, and enflurane. 5. Others induce no stage II but progress directly from stage I stage III, e.g. halothane and barbiturates. 6. Cataleptic agents may induce further CNS excitation manifested by seizures, e.g. gamma-hydroxybutyrate, phencyclidine, ketamine, alpha-chloralose, trichlorethylene, and enflurane. 7. The functional definition of surgical anesthesia is: a stage induced by a drug that makes the subject relatively unresponsive to painful stimuli and amnestic. Thus, the subject does not respond during surgery and cannot recall what happened afterwards. This state can be achieved by functional disruption of CNS systems by marked stimulation or depression.

Acoustic Stimulation↗
PubMed1975

Human meningioma antigens.

Sera from patients with various types of central nervous system tumors display antibodies reactive in serologic assays with cells and extracts derived from human brain neoplasms. Soluble antigens extracted and purified from surgical specimens of human meningiomas (MSA) were used to test for precipitating antibodies in sera from patients with various histologic types of brain tumors, non-neural solid tumors and from normal donors. Blind studies by immunodiffusion (ID) showed that 63% (15/24) of meningioma patients, 53% (9/17) of glioma patients and 17% (5/29) of patients with various other brain neoplasms had antibodies that reacted with two of three meningioma-associated antigens. Sera from normal donors and patients with non-neural solid neoplasms reacted to a limited extent (7/118) with another of these tumor-associated antigens. Cross-reaction and absorption studies revealed that the three meningioma-associated antigens were detecting different antibodies. None of the antigens was related to HLA antigens or to the human non-neurotropic viruses used in our assays.

Absorption↗