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Dive into the research topics where Esteban Martinez is active.

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Featured researches published by Esteban Martinez.


Journal of Molecular Medicine | 1993

Neopterin and opportunistic infections in HIV-infected patients

Pere Domingo; Esteban Martinez; Cecilia Martinez; J. Barrio; Josep Cadafalch

Neopterin has been proven useful as a screening test for cytomegalovirus infection in blood donors [3]. It is widely accepted as a prognostic marker of human immunodeficiency virus (HIV) infection, and its increase is generally thought to correlate with the degree to which cellular immunity is activated in HIV infection [1, 2]. However, changes in serum concentrations of neopterin may be due not only to progression of HIV infection but also to the development of opportunistic infections, and for this reason its monitoring may provide early evidence of the appearance of acquired immunodeficiency syndrome. We are prospectively following 380 HIV-infected patients who have had serum neopterin, /~2-microglobulin and adenosine deaminase (ADA) concentrations measured at intervals of 3-6 months. The /~2-microglobulin level was measured by radioimmunoassay (/~2-micro RIA, Pharmacia Diagnostics, Uppsala, Sweden), neopterin by radioimmunoassay (Immutest neopterin, Henning Berlin, Berlin, FRG), and ADA by a kinetic ultraviolet method (Boehringer Mannheim, Mannheim, FRG). At baseline, staging of HIV infection in our patients were as follows (Centers for Disease Control): 198 (53.2%) in stage II, 55 (14.8%) in stage III, and 119 (32%) in stage IV. Serum neopterin and ADA levels significantly increased with progression of the disease (Table 1). Furthermore, a high correlation between serum levels of neopterin and those of/~2-microglobulin (r=0.658, P=0.0001) and CD4 cell count (r=0.364, P= 0.0001) was found in our patients. ADA levels showed a lower correlation with ,62-microglobulin (r=0.17, P=0.001) and neopterin (r=0.13, P=0.02) and no correlation with CD4 count (r=0.08, P=0.11). During a mean follow-up time of 8.3-+3.4 months, 20 patients (5.2%) developed opportunistic infections: pulmonary tuberculosis (4), Pneumocystis carinii pneumonia (4), generalized cytomegalovirus infection (3), disse-


Clinical Infectious Diseases | 1992

Evans's Syndrome Triggered by Recombinant Hepatitis B Vaccine

Esteban Martinez; Pere Domingo


Clinical Infectious Diseases | 1995

Community-Acquired Pneumonia Due to Acinetobacter lwoffii in a Patient Infected with the Human Immunodeficiency Virus

Pere Domingo; Rosa Muñoz; Guillem Frontera; Roser Pericas; Esteban Martinez


Clinical Infectious Diseases | 1992

Cerebrospinal Fluid Adenosine Deaminase Levels in a Patient with Cryptococcal Meningitis

Esteban Martinez; Pere Domingo; Sambeat Ma; Josep Cadafalch


Clinical Infectious Diseases | 1994

Evidence Implicating Rifampin-Independent Antiplatelet Antibodies in the Pathogenesis of Rifampin-Induced Immune Thrombocytopenia

Esteban Martinez; Eduard Muniz; Pere Domingo


Clinical Infectious Diseases | 1994

Tuberculous Pulmonary Gangrene: Report of a Case and Review

Joaquín López-Contreras; Pere Domingo; Mireia Puig; Esteban Martinez


The Lancet | 1992

Prognostic value of serum beta 2-microglobulin in HIV infection.

Pere Domingo; Esteban Martinez; Cecilia Martinez; Fuster M; Mariano Cortés; Sambeat Ma; Josep Cadafalch


Clinical Infectious Diseases | 1992

Herpes Zoster—Induced Acute Hyperparathyroid Crisis

Esteban Martinez; Pere Domingo


Clinical Infectious Diseases | 1995

Difficulties in Diagnosing Gonococcemia

Esteban Martinez; Pere Domingo; Guillem Verger; Guillem Prats


The Lancet | 1992

Prognostic value of serum β2-microglobulin in HIV infection

José Pedreira; Antoni Castro; C Pereiro; C Barbuzano; Alexander Krämer; JamesJ. Goedert; Helmut Wachter; Dietmar Fuchs; Pere Domingo; Esteban Martinez; Cecilia Martinez; Monserrat Fuster; Mariano Cortés; Sambeat Ma; Josep Cadafalch

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Pere Domingo

Autonomous University of Barcelona

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Josep Cadafalch

Autonomous University of Barcelona

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Cecilia Martinez

Autonomous University of Barcelona

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Sambeat Ma

Autonomous University of Barcelona

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Mariano Cortés

Autonomous University of Barcelona

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Eduard Muniz

Autonomous University of Barcelona

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Guillem Frontera

Autonomous University of Barcelona

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Guillem Prats

Autonomous University of Barcelona

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Guillem Verger

Autonomous University of Barcelona

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J. Barrio

Autonomous University of Barcelona

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