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309 results for “virus”

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Research ArticleOpen accessIn the abstractTherapeutic Effects of Phyllanthus Species: Induction of TNF-α-mediated Apoptosis in HepG2 Hepatocellular Carcinoma CellsSripathi M. Sureban, Dharmalingam Subramaniam, Paramasivam Rajendran et al.Phyllanthus species, especially P. amarus is a medicinal plant with hepatoprotective activity, believed to occur in part by inhibiting hepatitis B virus function. The pathogenesis mechanism of viral hepatitis is closely related to hepatocyte necrosis apoptosis. The aim of our study was to investigate the in vitro effects of extracts from three Phyllanthus species, P. urinaria, P. amarus and P. … …American Journal of Pharmacology and Toxicology, Vol. 1, Issue 4 · 31 Dec 2007 · 9,009 accessesView PDFCite
Research ArticleOpen accessIn the abstractHIV-1 Infection and Drug-Abuse in India-An Emerging ChallengeMahendra Kumar, Adarsh M. Kumar, Raymond Ownby et al.India has a population of over 1 billion and the first cases of HIV-1 infection were reported from there in 1987. Since then HIV-infection has spread there very aggressively and at present it is reported that there may be 5.7 millions individuals infected with HIV. Unlike the western countries where the infected HIV-1 virus belongs to clade B, in India … …American Journal of Infectious Diseases, Vol. 3, Issue 4 · 31 Dec 2007 · 7,402 accessesView PDFCite
Research ArticleOpen accessIn the abstractHIV-1 Infection and Central Monoamine NeurotransmittersAdarsh M. Kumar, J. B. Fernandez, Irina Borodowsky et al.Human immunodeficiency virus type 1 (HIV-1) enters the central nervous system (CNS) shortly after infection and gets localized in different brain regions, leading to various types of neuropathological problems. It has been hypothesized that HIV-1 infection mediated neuropathogenesis may also adversely affect the activity of the central monoamine neurotransmitters systems, such as dopamine (DA), and 5-hydroxytryptamine (5-HT, serotonin), resulting in … …American Journal of Infectious Diseases, Vol. 3, Issue 4 · 31 Dec 2007 · 7,493 accessesView PDFCite
Research ArticleOpen accessIn the abstractConsequence on Treatment of TB Patients Affected by HIV/AIDS A Conceptual ResearchSarder N. Uddin, S. J. Hossain, Md. N. Huda et al.Mycobacterium tuberculosis is an ancient malady, which is one of the world’s most wide spread infectious bacterial agents. Fully one-third of the world’s population is already infected with Mycobacterium tuberculosis, with the greatest burden of disease and infection borne by people in developing countries. Tuberculosis disease is still out of control. Alarming spread of Human Immunodeficiency Virus (HIV) and emergence … …American Journal of Infectious Diseases, Vol. 2, Issue 4 · 31 Dec 2006 · 7,023 accessesView PDFCite
Research ArticleOpen accessIn the abstractNeuropsychological Consequences of HIV and Drug AuseArun Venkatesan, Ola Selnes, Valerie Wojna et al.Accurate assessment of the functional consequences of human immunodeficiency virus (HIV) infection and drugs of abuse are critical as large populations are afflicted with both. Both are interdependent epidemics with important socioeconomic consequences. Experimental studies in animal models and in vitro clearly indicate that HIV and drugs of abuse cause increased neurodegeneration, glial cell activation and enhanced HIV replication. Nevertheless, … …American Journal of Infectious Diseases, Vol. 2, Issue 2 · 30 Jun 2006 · 6,664 accessesView PDFCite
Research ArticleOpen accessIn the abstractNeuropsychological Dysfunction among HIV Infected Drug AbusersRamani S. Durvasula, Charles H. HinkinHuman immunodeficiency virus (HIV) has been documented to cause direct and indirect central nervous system dysfunction that can be observed as a progressive decline in neuropsychological functioning in a large proportion of persons with HIV and AIDS. Neuropsychological decline in individuals with HIV is characterized by cognitive and motor slowing, attentional deficits, executive dysfunction and memory impairment (characterized by intact … …American Journal of Infectious Diseases, Vol. 2, Issue 2 · 30 Jun 2006 · 7,161 accessesView PDFCite
Research ArticleOpen accessIn the abstractHeroin-Induces Differential Protein Expression by Normal Human Astrocytes (NHA)Jessica L. Reynolds, Supriya D. Mahajan, Donald Sykes, Madhavan P.N. NairHeroin use is postulated to act as a cofactor in the neuropathogenesis of human immunodeficiency virus (HIV-1) infection. Astrocytes, integral components of the CNS, are reported to be susceptible to HIV-1 infection. Upon activation, astrocytes release a number of immunoregulatory products or modulate the expression of a number of proteins that foster the immunopathogenesis of HIV-1 infection. However, the role … …American Journal of Infectious Diseases, Vol. 2, Issue 2 · 30 Jun 2006 · 7,267 accessesView PDFCite
Research ArticleOpen accessIn the abstractThe Changing Pathology of NeuroAIDS Associated with Drug Abuse in the Era of HAARTE Bell Jeanne, C. Anthony Iain, Simmonds PeterCompliance with highly active antiretroviral therapy (HAART) arrests HIV induced immune collapse and reduces the prevalence of severe central nervous system (CNS) complications, including HIV associated dementia and encephalitis. However minor cognitive disorders remain common and recent autopsy studies have demonstrated the presence of subtle neuropathological abnormalities in HAART treated individuals, including persistent neuroinflammation and enhanced deposition in the brain … …American Journal of Infectious Diseases, Vol. 2, Issue 2 · 30 Jun 2006 · 6,874 accessesView PDFCite
Research ArticleOpen accessIn the abstractOn Analysis and Design of the Enhanced Firewall for Intranet SecurityU. K. Singh, A. K. Ramani, N. S. ChaudhariIntranet often employ an Internet firewall to mitigate risks of system penetration, data theft, data destruction and other security breaches. Conventional Internet firewalls impose an overly simple inside vs. outside model of security that is incompatible with many business practices that require extending limited trust to external entities. Additionally, firewall security perimeters are somewhat weak: they provide no protection from … …Journal of Computer Science, Vol. 1, Issue 2 · 30 Jun 2005 · 6,710 accessesView PDFCite
Research ArticleOpen accessIn the abstractDetection of HCV Components and Pathological Reactions in Apoptotic Hepatocytes from Chronically HCV-infected PatientsViviana Falcón, Nelson Acosta-Rivero, Mineko Shibayama et al.Analysis of Hepatitis C Virus (HCV)-infected hepatocytes at the cellular level may contribute to elucidate the mechanisms of HCV pathogenesis. In this work, the presence of HCV components and pathological reactions in apoptotic hepatocytes from chronic HCV-infected patients were studied by electron microscopy and confocal microscopy. Eight samples of liver biopsies from patients with chronic hepatitis C were studied by … …American Journal of Infectious Diseases, Vol. 1, Issue 1 · 31 Mar 2005 · 6,909 accessesView PDFCite