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1.
Rev. Fac. Farm. (Merida) ; 45(1): 44-48, ene.-jun. 2003. tab
Article in Spanish | LILACS | ID: lil-396381

ABSTRACT

La resistencia bacteriana a los antibióticos puede residir en el cromosoma y/o plásmidos; sin embargo una bacteria puede modificar la resistencia por el uso de agentes tales como los intercaladores del ADN, entre los cuales están los antibióticos antraciclínicos. En este trabajo se evaluó el efecto de la 4'-epidoxorubicina (4EPI) sobre los plásmidos de Enterobacterias nosocomiales con resistencia a la ampicilina (Amp). Tanto la Amp como la (4EPI) mostraron un efecto variado sobre las cepas en estudio. Los resultados muestran que la metodología debe ser adaptada a cada microorganismo en estudio y el resultado más relevante fue el efecto negativo sobre el plásmido a las concentraciones 2mg/mL y 0,00002 mg/ml de 4EPI para Klebsiella pneumoniae PIN147


Subject(s)
Humans , Male , Female , Anti-Bacterial Agents/pharmacology , Anti-Bacterial Agents/therapeutic use , Drug Resistance, Microbial , Enterobacteriaceae , Epirubicin , Plasmids/pharmacology , Plasmids/therapeutic use , Pharmacy , Venezuela
2.
Med Hypotheses ; 57(6): 693-6, 2001 Dec.
Article in English | MEDLINE | ID: mdl-11918427

ABSTRACT

The human immunodeficiency virus (HIV) has probably coexisted with humans for nearly a century. However, towards the end of the 1970s, it appeared as the etiologic agent of the acquired immunodeficiency syndrome (AIDS). In this paper, we propose a hypothesis for HIV infection and AIDS development, considering the role of secondary adjuvant infections. This hypothesis takes into account the natural history of the development of the AIDS epidemic from the standpoint of an emerging infection due to the increased risk caused by anthropogenic activities, and it also considers the progression of the infection to the syndrome, in terms of cellular population dynamics.


Subject(s)
Acquired Immunodeficiency Syndrome/etiology , HIV Infections/etiology , AIDS-Related Opportunistic Infections/etiology , Acquired Immunodeficiency Syndrome/epidemiology , Acquired Immunodeficiency Syndrome/therapy , Africa/epidemiology , Disease Outbreaks , HIV Infections/epidemiology , HIV Infections/therapy , Humans , Immunotherapy , Lymphocyte Activation , Models, Biological , Vaccination/adverse effects , Virus Replication
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