Perfil de suscetibilidade, genes de resistência aos aminoglicosídeos e similaridade genética em amostras de Acinetobacter baumannii isoladas em um Hospital Terciário

Pós-graduação em Microbiologia - IBILCE

Trueperella pyogenes multispecies infections in domestic animals: a retrospective study of 144 cases (2002 to 2012)

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Experimental infection of inbred BALB/c and A/J mice with Massachusetts and Brazilian strains of infectious bronchitis virus (IBV)

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Fatores de risco para complicações respiratórias após adenotonsilectomia em crianças com apneia obstrutiva do sono

Identificar fatores de risco para complicações respiratórias após adenotonsilectomia em crianças ≤ 12 anos com apneia obstrutiva do sono encaminhadas à UTI pediátrica (UTIP). Estudo de coorte histórica com corte transversal que analisou 53 crianças após adenotonsilectomia que preencheram os critérios pré-estabelecidos para encaminhamento à UTIP em um hospital escola de nível terciário. Foram utilizados o teste t de Student, o teste de Mann-Whitney e o teste do qui-quadrado para identificar os fatores de risco. Das 805 crianças submetidas à adenotonsilectomia entre janeiro de 2006 e dezembro de 2012 no hospital escola, 53 foram encaminhadas à UTIP. Vinte e uma crianças (2,6% do total de submetidas à adenotonsilectomia e 39,6% das que foram encaminhadas à UTIP) apresentaram complicações respiratórias, sendo 12 do gênero masculino e a idade média de 5,3 ± 2,6 anos. Maior índice de apneia-hipopneia (IAH; p = 0,0269), maior índice de dessaturação de oxigênio (IDO; p = 0,0082), baixo nadir da SpO2 (p = 0,0055), maior tempo de intubação orotraqueal (p = 0,0011) e rinopatia (p = 0,0426) foram preditores independentes de complicações respiratórias. Foram observadas complicações respiratórias menores (SpO2 entre 90-80%) e maiores (SpO2 ≤ 80%, laringoespasmos, broncoespasmos, edema agudo de pulmão, pneumonia e apneia). Em crianças de até 12 anos e com apneia obstrutiva do sono, aquelas que têm maior IAH, maior IDO, menor nadir da SpO2 e/ou rinopatia são mais predispostas a desenvolver complicações respiratórias após adenotonsilectomia do que aquelas sem essas características.

Idiopathic pulmonary hemosiderosis: case report

OBJECTIVE: To alert pediatricians about the possibillity of childhood Idiopathic Pulmonary Hemosiderosis, in cases of anemia associated with chronic lung disease. METHODS: This article documents a case of Idiopathic Pulmonary Hemosiderosis in a 6 year-old child, with histopathological documentation, and reviews it against published literature. RESULTS: A 6 year-old child with history of anemia and lung disease characterized by wheezing, recurrent pneumonia and digital clubbing was admitted to the hospital for investigation, where he suffered sudden respiratory failure and hemoptysis.He was submitted to a lung biopsy which showed a histopathological diagnosis compatible with pulmonary hemosiderosis. Therapy with high doses of corticosteroids was initiated with a good early response. After two and a half months of therapy he had a new bleeding episode, culminating in death. CONCLUSIONS: Idiopathic Pulmonary Hemosiderosis should be included as a possible diagnosis of children with anemia and chronic lung disease. This case is a good example.

Estudo comparativo entre cinco diferentes tratamentos sobre as alterações clínicas e laboratoriais do rato diabético induzido pela aloxana

The long-term effects of five different treatments of diabetes were evaluated in alloxan-induced diabetic rats. Seven experimental groups, with 50 rats each (GN--normal control; GD--untreated diabetic control; GI, GA, GIA--treated groups with insulin, acarbose, and insulin plus acarbose, respectively; GTIL, GTPD--treated groups with islet of Langerhans and pancreas transplantation) were studied. Clinical (body weight, water intake, food intake and urine output) and laboratory (blood and urinary glucose, and plasma insulin) parameters were analyzed at the beginning of the study, and after 1, 3, 6, 9 and 12 months of follow-up. Mortality was observed in all groups, except GN, during 12 months (GD = 50%; GI = 20%; GA = 26%; GIA = 18%; GTIL = 4%; GTPD = 20%). Rats from the GD, GI, and GIA groups died due to metabolic or hydrossaline disbalance, and/or pneumonia, diarrhoea, and cachexy. All deaths observed in GTIL and GTPD groups were in decorrence of technical failure at the immediate postoperative, until 72h. Animals from the GI, GA and GIA had significative improving of the clinical and laboratory parameters (p < 0,05) observed in diabetic rats, being the efficacy of theses treatments equal. However, rats from the GTIL and GTPD groups had better control of these parameters than GI, GA, and GIA groups. Transplanted rats had complete restoration, at the normal levels, of all analyzed variables (p < 0.01). Conventional treatments with insulin, acarbose, and insulin plus acarbose improved the severe diabetic state of the alloxan-diabetic rats, but pancreas and islet transplantation have a better performance for treatment of diabetes.

Boas práticas de manejo de bezerras leiteiras na fase de cria e potenciais efeitos na recria

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Eferocitose na presença de PAMP estimula ativação de macrófagos de perfil misto M1/M2

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Estudo comparativo entre cinco diferentes tratamentos sobre as alterações clínicas e laboratoriais do rato diabético induzido pela aloxana

OBJETIVOS: Este estudo visa a analisar os efeitos, a longo prazo, de cinco diferentes tratamentos sobre o controle metabólico de ratos diabéticos aloxânicos. MÉTODOS: Foram analisados 7 grupos experimentais, com 50 ratos cada um, sendo: GN o grupo controle normal; GD o grupo controle diabético, sem tratamento; GI, GA e GIA os grupos tratados, respectivamente, com insulina, acarbose e associação insulina + acarbose; GTIL o grupo tratado com transplante de ilhotas de Langerhans; e o GTPD o grupo tratado com transplante pancreatoduodenal heterotópico. Parâmetros clínicos (peso, ingestão hídrica, ingestão alimentar e diurese) e laboratoriais (glicemia, glicose urinária e insulina plasmática) foram avaliados em todos os animais, no início do experimento, e após 1, 3, 6, 9 e 12 meses de seguimento. RESULTADOS: À exceção do GN, mortalidade foi observada em todos os grupos experimentais no seguimento de 12 meses (GD= 50%; GI= 20%; GA= 26%; GIA= 18%; GTIL= 4%; GTPD= 20%). em GD, GI, GA e GIA os óbitos ocorreram por distúrbios metabólicos ou hidroeletrolíticos e/ou pneumonia, diarréia e caquexia; em GTIL e GTPD todos os óbitos ocorreram por falhas técnicas no pós-operatório até 72h. Animais dos grupos GI, GA e GIA tiveram melhora significativa (p < 0,05) de todos os parâmetros clínicos e laboratoriais observados em ratos diabéticos, sem diferença de efetividade entre os tratamentos. Porém, os resultados observados nestes grupos, biologicamente não foram comparáveis aos observados em GTIL e GTPD, onde observou-se correção completa, aos níveis normais, de todas as variáveis analisadas (p<0,01). CONCLUSÕES: Os tratamentos convencionais com insulina, acarbose e insulina + acarbose melhoraram o estado diabético grave dos ratos tratados, contudo, a eficácia dos tratamentos foi significativamente inferior à oferecida pelo GTIL e GTPD.

Família Enterobacteriaceae, Acinetobacter baumannii e Pseudomonados na microbiota bucal de pacientes mantidos em unidades de terapia intensiva

Enteric organisms, pseudomonads and other opportunistic microorganisms in the oral microbiota have been linked to serious infections in patients hospitalized in intensive care units (ICU). The present study evaluated the presence of family Enterobacteriaceae, Pseudomonas aeruginosa, and Acinetobacter baumannii in the mouth of patients in ICU, correlating it with oral and systemic conditions. Data on health, socioeconomic status, medication use, drug addiction, medical and family histories of patients held for more than 72 hours in the ICU with a diagnosis of severe infection or that developed this condition after entry in said unit were obtained. Fifty patients provided clinical samples of supragingival and subgingival biofilms, saliva and oral mucous membranes were collected, as well as respiratory secretions from patients with pneumonia, blood and urine for sepsis. The presence of target microorganisms was carried out by polymerase chain reaction (PCR) and by culture using selective media. The Chi-square and Mann-Whitney tests were used for statistical analysis, and the significance level was 5%. The intraoral clinical conditions of the patients were poor. The family Enterobacteriaceae was the most prevalent, affecting 39.5% of the supragingival biofilm samples of patients attended in ICU and 18.6% of patients in the control group, besides the rods were the only group found in extraoral samples.

Enterococcus spp. em espécimes clínicos de pacientes atendidos em unidades de terapia intensiva

The relationship between the occurrence of enterococci in the oral microbiota and serious infections in patients hospitalized in intensive care units (ICU) has been established. This study evaluated the presence of Enterococcus faecalis and other species of this genus in the mouths of patients on ICU, correlating it with oral and systemic conditions. Data on health and socioeconomic, medication use, medical and family history of patients maintained for 72 hours in the ICU, diagnosed with severe infection or who have developed this condition after the entry to the unit were obtained. Fifty patients provided intraoral and extraoral clinical samples for analysis (above and subgingival biofilm, saliva and buccal mucosa, followed by obtaining samples of respiratory secretions for patients with pneumonia, and blood and urine for sepsis). The presence of target microorganisms was performed by polymerase chain reaction (PCR) and culture using selective media. The chi-square and Mann-Whitney tests were used for statistical analysis, and the significance level was 5%. The intraoral clinical conditions of the patients showed poor. E. faecalis was significantly more frequent microorganism, followed by E. faecium. The use of broadspectrum antimicrobial action was associated with the presence of these opportunistic microorganisms. These bacteria were more frequent in patients with periodontitis or gingivitis. The results showed that enterococci associated with serious infectious processes may originate from resident microbiota of patients and its prevalence is not elevated in healthy individuals.

Infecção viral respiratória comunitária e hospitalar em pacientes submetidos a transplante de células tronco hematopoiéticas

Pós-graduação em Pesquisa e Desenvolvimento (Biotecnologia Médica) - FMB

Caracterização biofísica da interação entre a proteína M2-1 do Vírus Sincicial Respiratório Humano (HRSV) com quercetina

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Piperacillin/tazobactam-induced neurotoxicity in a hemodialysis patient: a case report

Antibiotics are potentially a cause of neurotoxicity in dialysis patients, the most common are thebeta-lactams as ceftazidime and cefepime, and few cases have been reported after piperacillin/tazobactam use. This report presents a case of a hypertensive and diabetic 67-year-old woman inregular hemodialysis, which previously had a stroke. She was hospitalized presenting pneumonia,which was initially treated with cefepime. Two days after treatment, she presented dysarthria, lefthemiparesis, ataxia, and IX and X cranial nerves paresis. Computed tomography showed no acutelesions and cefepime neurotoxicity was hypothesized, and the antibiotic was replaced bypiperacillin/tazobactam. The neurologic signs disappeared; however, 4 days after with piperacillin/tazobactam treatment, the neurological manifestations returned. A new computed tomographyshowed no new lesions, and the second antibiotic regimen withdrawn. After two hemodialysissessions, the patient completely recovered from neurological manifestations. The patient presentedsequentially neurotoxicity caused by two beta-lactams antibiotics. This report meant to alertclinicians that these antibiotics have dangerous neurological effects in chronic kidney diseasepatients.

Infecção do trato urinário adquirida em ambiente hospitalar em idosos

Introduction: Hospital-acquired urinary tract infection (HAUTI) is an important cause of morbidity in the elderly population. Objective: Evaluate the occurrence of HAUTI and risk factors associated with it. Method: This is a prospective study of a sample of 332 elderly people, interned in a university hospital. Criteria for defining infection were established by the Center for Diseases and Prevention Control. Statistical analysis of data used calculation of frequencies, odds ratio and logistic regression. The rate of hospital infection was 23.6%. The prevalent topographies of infection were respiratory infections (27.6%), urinary tract infections (26.4%) and surgical wound infections (23.6%, with 21, 20 and 19 episodes, respectively. The HAUTI incidence density associated with urinary catheterization was 24.2 infections by 1,000 catheter-days. The length of hospital stay of patients without nosocomial infection was 6.9 days and with HAUTI was increased in 10.4 (p<0.05).The rate of mortality of patients with HAUTI was 20%. Pathogens were isolated in 75% of episodes of HAUTI and the prevalent were: Escherichia coli (33%) and Pseudomonas aeruginosa (20%). Risk factors found for HAUTI were urinary catheterization implementation (odds ratio (OR) = 43.1; 95% confidence interval (95 CI%) = 3.9 – 311.1), hospitalization with community infection (OR= 21.9; 95% CI = 4.9 – 97.9); vascular diseases (OR=14; 95% CI = 2 – 98); diabetes mellitus (OR= 5.5; 95% CI = 1.4 – 21) and urinary catheterization by more than three days (OR=3.7; 95% CI = 1 – 13.8). Conclusions: HAUTI presented elevated incidence and it increased the length of hospital stay.