5 research outputs found
Immune Reconstitution Inflammatory Syndrome and Cytomegalovirus Pneumonia Case Report: Highlights and Missing Links in Classification Criteria and Standardized Treatment
Background. Cytomegalovirus (CMV) pulmonary involvement is rarely associated with IRIS; therefore, limited information is available. Case Presentation. Here, we describe the case of a 43-year-old HIV-infected male who developed an unusual case of IRIS after cytomegalovirus (CMV) pneumonia. Clinically there was a progressive and paradoxical worsening of respiratory distress, despite being treated for CMV after initiation with antiretroviral therapy. Chest X-ray revealed disseminated infiltrates in both lungs; chest CT-scan showed generalized lung involvement and mediastinal adenopathy. Pulmonary biopsy confirmed CMV pneumonia with the observation of typical viral inclusions on pneumocytes. Conclusions. CMV pneumonia can be associated with the development of IRIS requiring treatment with immunosuppressant’s and immunomodulatory drugs
Synthesis and characterization of silver nanoparticles: effect on phytopathogen Colletotrichum gloesporioides
Colloidal silver nanoparticles were synthesized
by reducing silver nitrate solutions with glucose,
in the presence of gelatin as capping agent.The obtained
nanoparticles were characterized by means of
UV–Vis spectroscopy, transmission electron microscopy
(TEM), and Fourier transform infrared (FTIR)
spectroscopy. The response surface methodology
(RSM) was also used to determine the influence of the
variables on the size of the nanoparticles. The antifungal
activity of the silver nanoparticles was evaluated on the
phytopathogen Colletotrichum gloesporioides, which
causes anthracnose in a wide range of fruits. The UV–
Vis spectra indicated the formation of silver nanoparticles
preferably spherical and of relatively small size
(\20 nm). The above-mentioned was confirmed by
TEM, observing a size distribution of 5–24 nm.
According to RSM the synthesis variables influenced
on the size of the silver nanoparticles. Bymeans of FTIR
spectroscopy it was determined that gelatin, through
their amide and hydroxyl groups, interacts with nanoparticles
preventing their agglomeration. The growth of
C. gloesporioides in the presence of silver nanoparticles
was significantly delayed in a dose dependent manner
International Nosocomial Infection Control Consortiu (INICC) report, data summary of 43 countries for 2007-2012. Device-associated module
We report the results of an International Nosocomial Infection Control Consortium (INICC) surveillance study from January 2007-December 2012 in 503 intensive care units (ICUs) in Latin America, Asia, Africa, and Europe. During the 6-year study using the Centers for Disease Control and Prevention's (CDC) U.S. National Healthcare Safety Network (NHSN) definitions for device-associated health care–associated infection (DA-HAI), we collected prospective data from 605,310 patients hospitalized in the INICC's ICUs for an aggregate of 3,338,396 days. Although device utilization in the INICC's ICUs was similar to that reported from ICUs in the U.S. in the CDC's NHSN, rates of device-associated nosocomial infection were higher in the ICUs of the INICC hospitals: the pooled rate of central line–associated bloodstream infection in the INICC's ICUs, 4.9 per 1,000 central line days, is nearly 5-fold higher than the 0.9 per 1,000 central line days reported from comparable U.S. ICUs. The overall rate of ventilator-associated pneumonia was also higher (16.8 vs 1.1 per 1,000 ventilator days) as was the rate of catheter-associated urinary tract infection (5.5 vs 1.3 per 1,000 catheter days). Frequencies of resistance of Pseudomonas isolates to amikacin (42.8% vs 10%) and imipenem (42.4% vs 26.1%) and Klebsiella pneumoniae isolates to ceftazidime (71.2% vs 28.8%) and imipenem (19.6% vs 12.8%) were also higher in the INICC's ICUs compared with the ICUs of the CDC's NHSN