Comprehensive Analysis of Age- and Sex-Related Expression of the Chaperone Protein Sigma-1R in the Mouse Brain.

Sigma-1R (S1R) is a ubiquitously distributed protein highly expressed in the brain and liver. It acts as a ligand-inducible chaperone protein localized at the endoplasmic reticulum. S1R participates in several signaling pathways that oversee diverse cellular and neurological functions, such as calcium and proteome homeostasis, neuronal activity, memory, and emotional regulation.

Overview of Sigma-1R Subcellular Specific Biological Functions and Role in Neuroprotection.

For the past several years, fundamental research on Sigma-1R (S1R) protein has unveiled its necessity for maintaining proper cellular homeostasis through modulation of calcium and lipid exchange between the endoplasmic reticulum (ER) and mitochondria, ER-stress response, and many other mechanisms. Most of these processes, such as ER-stress response and autophagy, have been associated with neuroprotective roles. In fact, improving these mechanisms using S1R agonists was beneficial in several brain disorders including neurodegenerative diseases.

Incidence and predictive factors of depression among patients with HIV infection in Guadeloupe: 1988-2009.

A retrospective cohort study was conducted to determine the incidence and the predictive factors of depression in a cohort of 2737 HIV/AIDS-infected patients in Guadeloupe followed for a total of 8402 patient-years. The incidence rate of first observed depression was 2.2 per 100 person-years (95% confidence interval [CI], 1.

What is AIDS in Guadeloupe? A descriptive and comparative study.

Since the pathogen ecology differs between Caribbean regions, specific differences in the most frequent clinical presentations of acquired immunodeficiency syndrome (AIDS) may be expected. We therefore conducted the present retrospective cohort study in order to describe the main AIDS-defining events in Guadeloupe and to compare them with those observed in Metropolitan France and in French Guiana. We discuss the local pathogen ecology, the diagnostic limitations of hospitals in overseas territories and the drivers of the epidemic.

Bacteremia caused by Aeromonas species [corrected] complex in the Caribbean Islands of Martinique and Guadeloupe.

Aeromonas species are Gram-negative bacilli of the water environment whose survival appears facilitated by warm climates. There have been no reports on Aeromonas species in the [corrected] Caribbean to date. Our aim was to describe clinical and bacteriological features in patients presenting with such bacteremia in Martinique and Guadeloupe.

Impact of a five-year surveillance of central venous catheter infections in the REACAT intensive care unit network in France.

Central venous catheter (CVC)-related infections (CRIs) are a key target for infection control in intensive care units (ICUs). The aim of this study was to describe temporal trends of CRI incidence in a network of volunteer ICUs in Northern France. During a 4 month surveillance period each year, all CVCs in place for more than 48h were prospectively followed until removal or patient discharge.

Use of 27 parenteral antimicrobial agents in north of France hospitals.

Background: Little data are available on antibiotic (AB) use in French hospitals.

Methods: 1995-2001 annual data on WHO defined daily doses (DDD) and hospitalization days (HD) were collected from volunteer hospitals. Twenty-three AB (amikacin, aztreonam, cefepime, cefotaxime, cefpirome, ceftazidime, ceftriaxone, ciprofloxacin, fosfomycin, fusidic acid, levofloxacin, imipenem, isepamicin, ofloxacin, pefloxacin, piperacillin, piperacillin/tazobactam, quinupristin/dalfopristin, sulbactam, teicoplanin, ticarcillin, ticarcillin-clavulanic acid, vancomycin) and four antifungals (amphotericin B lipid formulations, caspofungin, and fluconazole) were surveyed.

[Evaluation of the antibiotic prescription in a paediatric intensive care unit].

Unlabelled: The antibiotic prescription in intensive care units is frequent using often broad-spectrum antibiotics; its quality has never been evaluated in paediatric intensive care units.

Objectives: To describe the modalities of antibiotic prescriptions in a paediatric intensive care unit and confront them to the literature guidelines and bacteriological data.

Methods: From January 1st to March 31st 2005, 52 consecutive prescriptions regarding 45 children, with a total of 47 hospitalisations were prospectively analysed.

An 18-case outbreak of drug-resistant Pseudomonas aeruginosa bacteriemia in hematology patients.

We retrospectively identified an outbreak of 18 episodes of P. aeruginosa bacteriemia in 17 patients with hematologic malignancies in 2004. All strains were ticarcillin I/R, 77% ciprofloxacin I/R, 72% ceftazidime I/R, 72% amikacin I/R and 50% imipenem I/R.

Effect of different stabilized preparations of peracetic acid on biofilm.

The effect of three stabilized peracetic acid (PAA) preparations (Bioxal M), with or without surfactants, on an Escherichia coli biofilm model was studied. The biofilm was prepared in glass tubes, and was evaluated indirectly using spectrophotometry. The ability of the products to fix or remove the biofilm was determined by their detergent activity (DA).

[Standardized incidence ratio: a risk index for catheter-related infection surveillance in intensive care units (REACAT network) in Northern France].

Background: Nosocomial infection surveillance is one of the major indicators used to compare health care quality in hospital settings. Wards participating in a network with standardized methods can be compared. We propose a risk index adjusted for catheter-related infection (CRI) specific risk factors in the setting of a CRI surveillance network in intensive care units (ICU): the standardized incidence ratio (SIR).

[Management of aspergillosis in immunocompromised patients. Recommendations of Lille University Hospital--4th version--November 2004].

Invasive aspergillosis is a severe complication in immunocompromised patients. The arrival of new antifungal agents motivated the redaction of guidelines, regularly updated, by a Lille University hospital multidisciplinary task force. These guidelines assess diagnostic and therapeutic issues.

Hospital-acquired pneumonia: risk factors for antimicrobial-resistant causative pathogens in critically ill patients.

Study Objectives: To determine factors associated with antimicrobial-resistant hospital-acquired pneumonia (AR-HAP), to build an algorithm evaluating the risk for such a pneumonia, and to test this algorithm.

Design: Combined observational and validation cohorts over two periods: January 1994 to December 1999, and January 2000 to March 2001.

Setting: One ICU from a university-affiliated urban teaching hospital.

Ventilation-induced lung injury is associated with an increase in gut permeability.

Mechanical ventilation is associated with several harmful effects mainly related to high tidal volumes (Vt). Ventilator-induced lung injury can be responsible for an increased production of inflammatory mediators. We evaluated remote consequences on the gut of lung triggered inflammatory response, neutralizing anti-tumor necrosis factor (TNF) antibody was administered to assess the role of TNF in lung and gut permeability changes.

Hospital-acquired pneumonia: microbiological data and potential adequacy of antimicrobial regimens.

Adequate antimicrobial therapy is a main approach employed to decrease the mortality associated with hospital-acquired pneumonia (HAP). All methods that optimise empirical treatment without increasing antibiotic selective pressure are relevant. Categorisation of patients according to HAP time of onset, severity and risk factors (American Thoracic Society (ATS) classification) or duration of mechanical ventilation and prior antibiotics (Trouillet's classification) are two such methods.

Bactericidal activity of three beta-lactams alone or in combination with a beta-lactamase inhibitor and two aminoglycosides against Klebsiella pneumoniae harboring extended-spectrum beta-lactamases.

OBJECTIVE: To study the bactericidal activity of beta-lactam antibiotics (imipenem, cefepime, cefpirome) alone or in combination with a beta-lactamase inhibitor (sulbactam) in the presence or absence of aminoglycoside (amikacin or isepamicin) against Klebsiella pneumoniae strains producing extended-spectrum beta-lactamases (ESBLs). METHODS: We characterized 10 strains by means of analytic isoelectric focusing and pulsed-field gel electrophoresis. The ESBLs produced by these strains were derived from either TEM (TEM-1, TEM-2) or SHV-1.

Mortality due to ventilator-associated pneumonia: impact of medical versus surgical ICU admittance status.

Purpose: The purpose of this study was to compare the prognosis of medical versus surgical patients developing ventilator-associated pneumonia (VAP).

Materials And Methods: An observational cohort study included 125 consecutive patients exhibiting VAP. Incidence of death occurred at two different times: during intensive care unit (ICU) stay and during hospital stay.

Exchange transfusion for severe malaria.

Background: Exchange transfusion (ET) is a controversial ancillary treatment of severe falciparum malaria.

Patients And Methods: We conducted a retrospective analysis of severe malaria treated in our institution. Nine cases of ET were identified between 1991 and 1998 and compared to 12 controls with similar parasitemia.

Keratinocyte growth factor protects against Pseudomonas aeruginosa-induced lung injury.

We have previously reported that keratinocyte growth factor (KGF) attenuates alpha-naphthylthiourea-induced lung injury by upregulating alveolar fluid transport. The objective of this study was to determine the effect of KGF pretreatment in Pseudomonas aeruginosa pneumonia. A 5% bovine albumin solution with 1 microCi of (125)I-labeled human albumin was instilled into the air spaces 4 or 24 h after intratracheal instillation of P.

Predisposing factors for nosocomial pneumonia in patients receiving mechanical ventilation and requiring tracheotomy.

Study Objectives: To assess the incidence of nosocomial pneumonia (NP) after tracheotomy in an ICU population and to determine NP risk factors during the ICU stay, particularly on the day of tracheotomy.

Design: A retrospective study using prospectively collected data.

Setting: A 16-bed multidisciplinary ICU.