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991.
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993.
Teixeira AL Reis HJ Nicolato R Brito-Melo G Correa H Teixeira MM Romano-Silva MA 《Progress in neuro-psychopharmacology & biological psychiatry》2008,32(3):710-714
BACKGROUND: Inflammatory and immune alterations occur and may be relevant in patients with schizophrenia. Chemokines are a subgroup of cytokines that play a major role in the recruitment of determined subsets of leukocytes into tissues. To date no study has evaluated whether levels of chemokines are altered in patients with schizophrenia. OBJECTIVE: To evaluate serum levels of CC and CXC chemokines of schizophrenic patients and age- and gender-matched controls. METHODS: Forty male institutionalized schizophrenic patients (mean+/-SD age, 52.3+/-9.9) and 20 asymptomatic matched controls were recruited for this study. Severity of symptoms was assessed using BPRS, PANSS and AIMS. All patients were under typical antipsychotic treatment. Serum concentrations of chemokines were measured by ELISA. RESULTS: There was no statistical difference in serum levels of CCL2, CCL3, CCL24, CXCL9 and CXCL10 between controls and patients. Serum levels of CCL11 were increased in schizophrenic patients when compared to controls. Serum levels of chemokines were not correlated with the length of disease or hospitalization and the severity of involuntary movements, positive and/or negative symptoms. CONCLUSION: CCL11 is a ligand for CCR3, a receptor expressed preferentially on Th2 lymphocytes, mast cells and eosinophils. Higher serum levels of CCL11 in schizophrenia reinforce the view that this disease may be associated with a Th1/Th2 imbalance with a shift toward a Th2 immune response. 相似文献
994.
Teun P Saltzherr PH Ping Fung Kon Jin Fred C Bakker Kees J Ponsen Jan SK Luitse Mark Scholing Georgios F Giannakopoulos Ludo FM Beenen C Pieter Henny Ger M Koole Hans B Reitsma Marcel GW Dijkgraaf Patrick MM Bossuyt J Carel Goslings 《BMC emergency medicine》2008,8(1):1-5
Background
Trauma is a major source of morbidity and mortality, especially in people below the age of 50 years. For the evaluation of trauma patients CT scanning has gained wide acceptance in and provides detailed information on location and severity of injuries. However, CT scanning is frequently time consuming due to logistical (location of CT scanner elsewhere in the hospital) and technical issues. An innovative and unique infrastructural change has been made in the AMC in which the CT scanner is transported to the patient instead of the patient to the CT scanner. As a consequence, early shockroom CT scanning provides an all-inclusive multifocal diagnostic modality that can detect (potentially life-threatening) injuries in an earlier stage, so that therapy can be directed based on these findings.Methods/design
The REACT-trial is a prospective, randomized trial, comparing two Dutch level-1 trauma centers, respectively the VUmc and AMC, with the only difference being the location of the CT scanner (respectively in the Radiology Department and in the shockroom). All trauma patients that are transported to the AMC or VUmc shockroom according to the current prehospital triage system are included. Patients younger than 16 years of age and patients who die during transport are excluded. Randomization will be performed prehospitally. Study parameters are the number of days outside the hospital during the first year following the trauma (primary outcome), general health at 6 and 12 months post trauma, mortality and morbidity, and various time intervals during initial evaluation. In addition a cost-effectiveness analysis of this shockroom concept will be performed. Regarding primary outcome it is estimated that the common standard deviation of days spent outside of the hospital during the first year following trauma is a total of 12 days. To detect an overall difference of 2 days within the first year between the two strategies, 562 patients per group are needed. (alpha 0.95 and beta 0.80).Discussion
The REACT-trial will provide evidence on the effects of a strategy involving early shockroom CT scanning compared with a standard diagnostic imaging strategy in trauma patients on both patient outcome and operations research.Trial registration
ISRCTN55332315 相似文献995.
Diagnostic accuracy of bronchoalveolar lavage samples in immunosuppressed patients with suspected pneumonia: analysis of a protocol 总被引:1,自引:0,他引:1
Vélez L Correa LT Maya MA Mejía P Ortega J Bedoya V Ortega H 《Respiratory medicine》2007,101(10):2160-2167
BACKGROUND: Fast and accurate etiologic diagnosis of pneumonia in immunocompromised patients is essential for a good outcome. Utility of bronchoalveolar lavage (BAL) samples has already been established, but studies about them are scarce and limited to few countries. We aimed to evaluate the accuracy of a diagnostic protocol, emphasizing on local epidemiology, rapidity, and yield of different techniques. METHODS: One year prospective study of 101 consecutive immunosuppressed patients admitted with suspected pneumonia to a university hospital. They all had bronchoscopic BAL (n=109) and respiratory sampling. Conventional microbiological studies, cytomegalovirus pp65 antigenemia and transbronchial biopsy (TBB), whenever considered pertinent, were done. Results were analyzed along with other diagnostic procedures, clinical course and final outcome. RESULTS: HIV/AIDS infection was the most frequent cause of inclusion (n=80). Infections accounted for 79 out of 122 final diagnoses (64.8%). Our protocol identified 60 infectious and 3 noninfectious pathologies (general yield: 51.6%). Sensitivity in pulmonary infections was 75.9% (IC95%: 64.8-84.6%), specificity 86.0% (72.6-93.7%), positive predictive value 89.6% (79.1-95.3%), negative predictive value 69.4% (56.2-80.1%), accuracy 79.8% (71.7-86.2%). Mycobacterium spp. (n=27), bacteria (n=19), Pneumocystis jirovecii (n=18) and other fungi (histoplasmosis: 6, aspergillosis: 5, cryptococosis: 3) were the most common infectious pathogens. Direct microscopy allowed an early definite/presumptive diagnosis in 36/49 fungal and mycobacterial infections (73.5%). Up to 30% of mycobacterial infections were missed. CONCLUSIONS: Systematical study of BAL samples has a high diagnostic yield in our immunocompromised patients with suspected pneumonia. As economical and epidemiological conditions of regions are different, it should be tried everywhere. 相似文献
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998.
Usenko T Eskinazi D Correa PN Amato D Ben-David Y Axelrad AA 《Leukemia & lymphoma》2007,48(1):134-146
Polycythemia vera (PV), an acquired, chronic, clonal disorder arising in a multipotential hematopoietic progenitor cell, is characterized by hyperplasia of three major myeloid lineages, with a pronounced increase in cells of the erythroid lineage. Erythroid progenitor cells in PV are strikingly hypersensitive to insulin-like growth factor-I (IGF-I); this effect is specific and is mediated through the IGF-I receptor. To investigate the possibility that in PV the increase in number of erythroid progenitors and their hypersensitivity to IGF-I result from a defect in negative regulation of cytokine activity, we examined the expression of members of the SOCS gene family. Circulating mononuclear cells, grown in serum-free methylcellulose medium in the presence of IGF-I, produced BFU-E-derived colonies whose cells revealed a reduction of SOCS-2 and SOCS-3 expression in PV only. Overexpression of these genes in transfected PV cells reduced their erythroid overgrowth and IGF-I hypersensitivity. We hypothesize that a defect in expression of SOCS-2 and SOCS-3 genes may be crucial for the IGF-I hypersensitivity and progressive increase in erythroid cell population size characteristic of PV. 相似文献
999.
India's AIDS case surveillance system attributes 86% of HIV infections to sexual risks, 2.4% to injection drug use, 2.0% to blood transfusions, 3.6% to perinatal transmission, and 6.0% to others or not specified. To assess the reliability of this information, we examined the process of AIDS case surveillance in four high HIV-prevalence districts in southern India. We reviewed forms and interviewed doctors, counsellors, officials of State AIDS Control Societies, and a convenience sample of people living with HIV/AIDS. Current surveillance practices are not sensitive to parenteral exposures; forms have no space to report blood exposures other than transfusions and injections, and counsellors often ignore parenteral risks. The system does not distinguish high from lower risk sexual behaviours; all cases with sexual risks are reported in one category. We propose changes in forms and practices to improve the reliability and usefulness of information on risks from AIDS case reporting. 相似文献
1000.
Daniela M.C. Anjos Luciana P.O. Gomes Luciana M.M. Sampaio Jo?o C.F. Correa Claudia S. Oliveira 《Archives of Medical Science》2010,6(1):43-48