Encephalitis Associated to Metabotropic Glutamate Receptor 5 (mGluR5) Antibodies in Cerebrospinal Fluid.

A 68-years-old Hispanic man, complained of night sweats, low grade fewer, unexplained weight loss, and memory problems over 3 months. Abdominal tomography showed multiple intra-abdominal adenopathy and biopsy confirmed classic Hodgkin's lymphoma. He commenced treatment with chemotherapy.

Plankton networks driving carbon export in the oligotrophic ocean.

The biological carbon pump is the process by which CO2 is transformed to organic carbon via photosynthesis, exported through sinking particles, and finally sequestered in the deep ocean. While the intensity of the pump correlates with plankton community composition, the underlying ecosystem structure driving the process remains largely uncharacterized. Here we use environmental and metagenomic data gathered during the Tara Oceans expedition to improve our understanding of carbon export in the oligotrophic ocean.

[Preneoplastic gastric lesions and helicobacter pylori in endoscopic detection and early diagnosis of gastric cancer in a population of a medium and high socio-economic level].

Objectives: To determine the prevalence and characteristics of premalignant gastric lesions and its relationship with helicobacter pylori infection.

Methods: We performed a cross-sectional retrospective study. Between january and june 2008, consecutive subjects of middle and high socioeconomic status were evaluated by upper gastrointestinal endoscopy during a gastric cancer screening in Central FAP Hospital.

[Prevalence, clinical-endoscopic characteristics and predictive factors of Barrett's Esophagus in endoscopic screening for gastric cancer].

Purpose: Determine the prevalence, clinical-epidemiological characteristics and predictive factors for Barrets Esophagus (BE).

Method: An analytical and transversal study was conducted, followed by a case-control study nested in a population participating in a gastric cancer screening campaign, from January to June 2008 at the Central Hospital of the Peruvian Air Force (FAP). A BE case was defined due to the endoscopic presence of columnar-appearing mucosa confirmed by intestinal metaplasia at biopsy.

[Seroprevalence of the infection and risk factors of hepatitis B and C in healthy military personnel].

Objective: Determine the prevalence of infections by the hepatitis B (HBV) and C (HCV) viruses and the risk factors associated with their acquisition in clinically healthy military personnel.

Method: Correlational and analytic transversal study. The population was made up of active, clinically healthy military personnel from the Peruvian Air Force that volunteered for a screening program between October and December 2007.

[Endoscopic lesions in the upper digestive tract in patients with terminal chronic renal insufficiency].

Introduction: End Stage Renal Disease (ESRD) causes changes that affect every organ system including the digestive tract. These changes are manifested by a variety of symptoms and are responsible for a high degree of morbidity and mortality. The main objective of this study is to determine the most common endoscopic lesions of the upper gastrointestinal tract seen in patients with a diagnosis of ESRD.

[Serologic prevalence of HCV antibodies in health personnel in Peru].

In Peru, new cases of asymptomatic HCV infection are reported with certain frequency in patients with or without antecedents of blood transfusion. Although serologic screening has improved notoriously in the last years, there is still a population of polytransfused patients with high HCV risk (e.g.