Results 271 to 280 of about 646,497 (314)

Activation of Human Immunodeficiency Virus by Herpes Simplex Virus

Journal of Infectious Diseases, 1992
Heterologous viruses have been examined for their ability to accelerate the course of infection with the human immunodeficiency virus (HIV) type 1. In this study, ACH-2 cells persistently infected with HIV-1 exhibited augmented HIV-1 replication as a result of superinfection with herpes simplex virus (HSV) type 1.
M P, Golden, S, Kim, S M, Hammer, E A, Ladd, P A, Schaffer, N, DeLuca, M A, Albrecht   +6 more
openaire   +2 more sources

Active virus filter for enrichment and manipulation of virus

2011 IEEE 24th International Conference on Micro Electro Mechanical Systems, 2011
We developed an active virus filter (AVF) that was able to virus enrichment and distribution for single virus manipulation by using the insulator based dielectrophoresis (iDEP). The design of constricted flow channel enabled the microfluidic chip to produce iDEP force.
T. Masuda, H. Maruyama, A. Honda, F. Arai   +3 more
openaire   +1 more source

Biochemical suppression of tumor virus activity

Cancer, 1974
DNA and RNA polymerases and their templates play a central role in the control of gene expression. As an approach to a scientific chemotherapy to control nucleic acid-directed disease, we have used the highly purified RNA-directed DNA polymerase of the avian myeloblastosis virus (AMV) as a test enzyme to search for inhibitors of DNA polymerase.
M, Green, G F, Gerard, D P, Grandgenett, C, Gurgo, A M, Rankin, M R, Green, D M, Cassell   +6 more
openaire   +2 more sources

Hemolytic activity of rubella virus

Virology, 1978
Abstract Hemolytic activity of rubella virus was demonstrated by chelating Ca2+ with EDTA after adsorption of the virus to erythrocytes in the presence of the ion. The hemolysis was inhibited by rabbit serum immunized with the virus. Furthermore, the hemolytic activity co-sedimented in sucrose density gradient centrifugation with the hemagglutinating
openaire   +2 more sources

Activation of virus production in vaccinia virus transformed cells by methotrexate

Archiv für die gesamte Virusforschung, 1973
Vaccinia virus transformed mouse and human cells have been exposed to varying concentrations of methotrexate (MTX) and examined for inhibition of cell replication and the production of infectious virus. MTX induced vaccinia production in cells of mouse origin and increased the production of this virus in cells of human origin 100–1000 times.
J, Koziorowska, B, Chlopkiewicz
openaire   +2 more sources

Antiapoptotic activity of bovine papilloma virus

International Journal of Oncology, 1996
Transformed fibroblasts have been recently shown to be sensitive for induction of apoptosis by TGF-beta-treated neighbouring untransformed cells. Cells transformed by a variety of different transformation principles were regularly sensitive for intercellular induction of apoptosis, but fibroblasts transformed by bovine papillomavirus (BPV) represented ...
Melchinger, W., Strauss, S., Zucker, Birgit, Bauer, Georg   +3 more
openaire   +3 more sources

Influenza virus neuraminidase with hemagglutinin activity

Virology, 1984
Isolated intact influenza virus neuraminidase (NA) molecules of the N9 subtype have been found to possess hemagglutinin (HA) activity which, at equivalent protein concentration, was fourfold higher than that of isolated hemagglutinin molecules of the H3 subtype.
W G, Laver, P M, Colman, R G, Webster, V S, Hinshaw, G M, Air   +4 more
openaire   +2 more sources

Activity of andrographolide against dengue virus

Antiviral Research, 2017
Dengue is the most prevalent arthropod-transmitted viral illness of humans, with an estimated 100 million symptomatic infections occurring each year and more than 2.5 billion people living at risk of infection. There are no approved antiviral agents against dengue virus, and there is only limited introduction of a dengue vaccine in some countries ...
Patcharee Panraksa, Suwipa Ramphan, Sarawut Khongwichit, Duncan R. Smith   +3 more
openaire   +2 more sources

Hemagglutinating activity of bovine papilloma virus

Virology, 1974
Abstract Purified preparations of bovine papilloma virus (BPV) agglutinate mouse erythrocytes. Maximal hemagglutination (HA) activity occurs at 4°, between pH 6.8 and 8.4. The adsorbed virus is readily eluted at 37°. The BPV receptors on mouse erythrocytes show a high resistance to receptor-destroying enzyme or Influenza A2 neuraminidase.
M, Favre, F, Breitburd, O, Croissant, G, Orth   +3 more
openaire   +2 more sources

Mitogenic activity of influenza virus and haemagglutinin

Vaccine, 1985
Influenza A viruses behave as T cell-independent B cell mitogens in vitro. The magnitude of the proliferation induced varies with the haemagglutinin subtype of the virus, the order being H2 greater than H6 greater than H3 greater than H1 for Balb/c mice. H3 viruses are equally mitogenic for all strains of mice tested.
E M, Anders, A A, Scalzo, D O, White
openaire   +2 more sources