Nutritional, metabolic and cardiovascular correlations of morning cortisol in health care workers in a gastroenterology service.

BACKGROUND: Workplace stress has been associated with obesity. Diminished body weight has also been anticipated in some contexts. OBJECTIVE: In a cohort of healthcare personnel, morning cortisol was compared to nutritional and metabolic variables, aiming to identify the correlates of such marker. METHODS: Population n=185, 33.8 ± 9.8 years, 88.1% females, body mass index (BMI) 25.6 ± 4.4 kg/m2, included nurses and other nosocomial professionals, the majority with high social-economic status (75.2%). Participants were stratified according to BMI, fasting blood glucose (FBG) and metabolic syndrome (MS). Fasting plasma cortisol and the Framingham Coronary Risk Score was calculated. RESULTS: Mean cortisol was acceptable (19.4 ± 7.9 µg/dL) although with elevation in 21.6%. No correlation with FBG or MS occurred, and nonobese persons (BMI <25) exhibited the highest values (P=0.049). Comparison of the lowest and highest cortisol quartiles confirmed reduced BMI and waist circumference in the former, with unchanged Framingham Coronary Risk Score. CONCLUSION: Cortisol correlated with reduced BMI. Despite low BMI and waist circumference, Framingham Coronary Risk Score was not benefitted, suggesting that exposure to cardiovascular risk continues, besides psychological strain. Initiatives to enhance organizational and staff health are advisable in the hospital environment.

Nutritional, meaabolic and cardiovascular correations of morning cortisol in hhealth care workers in a gastroenterology service / Correlações nutricionais, metabólicas e cardiovasculares do cortisol matutino em profissionais da saúde de um Serviço de Gastroenterologia

Background Workplace stress has been associated with obesity. Diminished body weight has also been anticipated in some contexts. Objective In a cohort of healthcare personnel, morning cortisol was compared to nutritional and metabolic variables, aiming to identify the correlates of such marker. Methods Population n=185, 33.8 ± 9.8 years, 88.1% females, body mass index (BMI) 25.6 ± 4.4 kg/m2, included nurses and other nosocomial professionals, the majority with high social-economic status (75.2%). Participants were stratified according to BMI, fasting blood glucose (FBG) and metabolic syndrome (MS). Fasting plasma cortisol and the Framingham Coronary Risk Score was calculated. Results Mean cortisol was acceptable (19.4 ± 7.9 µg/dL) although with elevation in 21.6%. No correlation with FBG or MS occurred, and nonobese persons (BMI <25) exhibited the highest values (P=0.049). Comparison of the lowest and highest cortisol quartiles confirmed reduced BMI and waist circumference in the former, with unchanged Framingham Coronary Risk Score. Conclusion Cortisol correlated with reduced BMI. Despite low BMI and waist circumference, Framingham Coronary Risk Score was not benefitted, suggesting that exposure to cardiovascular risk continues, besides psychological strain. Initiatives to enhance organizational and staff health are advisable in the hospital environment. .

Contexto O estresse no ambiente de trabalho tem sido associado com obesidade. Peso corporal diminuído também tem sido relatado em algumas circunstâncias. Objetivo Numa casuística de profissionais da saúde, o cortisol matutino foi comparado com variáveis nutricionais e metabólicas, objetivando identificar as correlações de tal marcador. Métodos A população com n=185; 33,8 ± 9,8 anos; 88,1% mulheres, índice de massa corporal (IMC) 25.6 ± 4.4 kg/m2, incluía enfermeiros e outros funcionários nosocomiais, em sua maioria (75,2%) com nível sócio-econômico elevado. Os participantes foram estatrificados de acordo com IMC, glicemia de jejum, e síndrome metabólica. O cortisol de jejum e o escore Framingham de risco cardiovascular foram registrados. Resultados O cortisol médio era aceitável (19.4 ± 7.9 µg/dL), todavia com valores elevados em 21,6%. A glicemia de jejum e a síndrome metabólica não exibiram correlação, sendo que no tocante ao IMC, os não obesos (IMC <25) apresentaram o cortisol mais alto (P=0,049). Comparando-se os quartis superior e inferior do cortisol, confirmou-se o vínculo com o IMC e perímetro abdominal mais baixos, com escore Framingham de risco cardiovascular inalterado. Conclusão O cortisol alterado concentrou-se nos casos de IMC mais reduzido. A despeito do baixo IMC e perímetro abdominal, esta população não se beneficiou de escore de risco cardiovascular menor, sugerindo que, mesmo na ausência de obesidade, este grupo estava exposto a elevado risco cardiovascular, ao lado do estresse. Iniciativas direcionadas para melhor saúde organizacional e da equipe de profissionais, são recomendáveis no ambiente hospitalar. .

Anti-inflammatory and antinociceptive activities of indole-imidazolidine derivatives.

Non-steroidal anti-inflammatory drugs (NSAIDs) represent a group of approximately 50 different medicines that are widely prescribed for the management of inflammation and that exhibit variable anti-inflammatory, anti-pyretic and analgesic activities. Most NSAIDs also exhibit a shared set of adverse effects, particularly related to gastrointestinal complications; thus, the development of new drugs for the treatment of chronic inflammation and pain continues to be an issue of high interest. Hydantoin and indole derivatives are reported to possess various pharmacological effects, including anti-inflammatory and analgesic activities. Therefore, the aim of this study was to evaluate the potential anti-inflammatory and antinociceptive activities of hybrid molecules containing imidazole and indole nuclei. The anti-inflammatory activities of 5-(1H-Indol-3-yl-methylene)-2-thioxo-imidazolidin-4-one (LPSF/NN-56) and 3-(4-Bromo-benzyl)-5-(1H-indol-3-yl-methylene)-2thioxo-imidazolidin-4-one (LPSF/NN-52) were evaluated using air pouch and carrageenan-induced peritonitis models as well as an acetic acid-induced vascular permeability model followed by IL-1ß and TNF-α quantification. To evaluate the antinociceptive activities of the compounds, acetic acid-induced nociception, formalin and hot plate tests were also performed. The anti-inflammatory activities of the compounds were evidenced by a reduction in both leukocyte migration and the release of TNF-α and IL-1ß in air pouch and peritonitis models. Upon acetic acid-induced nociception, a decrease in the level of abdominal writhing in the groups treated with LPSF/NN-52 (52.1%) or LPSF/NN-56 (63.1%) was observed. However, in the hot plate test, none of the derivatives tested exhibited an inhibition of nociception. These results indicate that the compounds tested exhibited promising anti-inflammatory and antinociceptive activities that likely involved the modulation of the immune system.

Role of central nitric oxide in behavioral thermoregulation of toads during hypoxia.

Nitric oxide (NO) is thought to play a key role in the development of hypoxia-induced anapyrexia in mammals, acting on the preoptic region of the anterior hypothalamus to activate autonomic heat loss responses. Regarding behavioral thermoregulation, no data exists for NO modulation/mediation of thermoregulatory behavior changes during hypoxia. Therefore, we tested the hypothesis that NO is involved in the preferred body temperature (Tb) reduction in the hypoxic toad Chaunus schneideri (formerly Bufo paracnemis), a primarily behavioral thermoregulator. Toads equipped with a temperature probe were placed in a thermal gradient chamber, and preferred Tb was monitored continuously. We analyzed the effect of intracerebroventricular injections of the nonselective NO synthase inhibitor l-NMMA (200, 400 and 800 microg per animal) or mock cerebrospinal fluid (mCSF, vehicle) on the preferred Tb of toads. No significant difference in preferred Tb was observed after l-NMMA treatments. Another group of toads treated with 2 mg kg(-1) (400 microg per animal) of l-NMMA or mCSF was submitted to hypoxia (3% inspired O(2)) for 8 h. The vehicle group showed a reduction of preferred Tb, a response that was inhibited by l-NMMA. A 3rd group of hypoxic animals was injected with Ringer or l-NMMA (2 mg kg(-1)) into the lymph sac and both treatments induced no change in the anapyretic response to hypoxia. These results indicate that NO acting on the central nervous system has an excitatory role for the development of hypoxia-induced anapyrexia in toads.

Cost-effectiveness of linezolid versus vancomycin in mechanical ventilation-associated nosocomial pneumonia caused by methicillin-resistant staphylococcus aureus.

UNLABELLED: Linezolid, an oxazolidinone-class antimicrobial agent, is a new drug; its use has frequently been questioned due to its high price. However, recent trials have demonstrated that the use of linezolid in mechanical ventilation-associated nosocomial pneumonia caused by methicillin-resistant Staphylococcus aureus (VAP-MRSA) may be justified due to its improved efficacy compared to vancomycin. Price and cost have different magnitudes, and clinical efficacy should always be considered in the decision-making process. Our objective was to determine whether linezolid treatment was more cost-effective than vancomycin for treating VAP-MRSA. METHODOLOGY: Elaboration of an economic model from a metanalysis of previous clinical trials comparing both drugs, through a cost-effectiveness analysis. Costs of the treatments were calculated using Brazilian parameters and were compared to the results obtained in the metanalysis. In order to compare the results with real life conditions, costs were calculated for both name brand and for generic vancomycin. RESULTS: The cost (May/2004) per unit (vial, ampoule or bag) was R$ 47.73 for the name-brand vancomycin, R$ 14.45 for generic vancomycin and R$ 214.04 for linezolid. Linezolid's efficacy in VAP-MRSA according to the metanalysis was 62.2% and vancomycin's efficacy was 21.2%. The total cost per cured patient was R$ 13,231.65 for the name-brand vancomycin, R$ 11,277.59 for generic vancomycin and R$ 7,764.72 for linezolid. CONCLUSION: Despite the higher price per unit, linezolid was more cost-effective than vancomycin.

Cost-effectiveness of linezolid versus vancomycin in mechanical ventilation-associated nosocomial pneumonia caused by methicillin-resistant staphylococcus aureus

Linezolid, an oxazolidinone-class antimicrobial agent, is a new drug; its use has frequently been questioned due to its high price. However, recent trials have demonstrated that the use of linezolid in mechanical ventilation-associated nosocomial pneumonia caused by methicillin-resistant Staphylococcus aureus (VAP-MRSA) may be justified due to its improved efficacy compared to vancomycin. Price and cost have different magnitudes, and clinical efficacy should always be considered in the decision-making process. Our objective was to determine whether linezolid treatment was more cost-effective than vancomycin for treating VAP-MRSA. METHODOLOGY: Elaboration of an economic model from a metanalysis of previous clinical trials comparing both drugs, through a cost-effectiveness analysis. Costs of the treatments were calculated using Brazilian parameters and were compared to the results obtained in the metanalysis. In order to compare the results with real life conditions, costs were calculated for both name brand and for generic vancomycin. RESULTS: The cost (May/2004) per unit (vial, ampoule or bag) was R$ 47.73 for the name-brand vancomycin, R$ 14.45 for generic vancomycin and R$ 214.04 for linezolid. Linezolid's efficacy in VAP-MRSA according to the metanalysis was 62.2 percent and vancomycin's efficacy was 21.2 percent. The total cost per cured patient was R$ 13,231.65 for the name-brand vancomycin, R$ 11,277.59 for generic vancomycin and R$ 7,764.72 for linezolid. CONCLUSION: Despite the higher price per unit, linezolid was more cost-effective than vancomycin.

Análise de minimização de custos do uso de linezolida vs vancomicina em infecções de pele e partes moles por MRSA / Cost minimization analysis: use of linezolid vs vancomycin for MRSA skin and soft tissues infections

A linezolida é um antibiótico eficaz no tratamento de infecções de pele e de parte moles (IPPM) causadas por S. aureus resistente a meticilina (MRSA); além disso, seu uso pode antecipar a alta, reduzir os custos, minimizar as complicações decorrentes da internação e do uso da via intravenosa. Este estudo compara os tratamentos com linezolida e vancomicina para IPPM-MRSA

Soroprevalência de sarampo entre pediatras de um hospital-escola / Prevalence of antibodies against measles among pediatricians in a teaching hospital

Introduçäo: Em 1996-1997, ocorreu no Estado de Säo Paulo uma epidemia de sarampo. Uma das estratégias de controle da Secretaria do Estado da Saúde foi a vacinaçäo dos profissionais da saúde. Nesse sentido, objetivou-se avaliar a soroprevalência de sarampo entre os pediatras. Métodos: Foram colhidas 150 amostras de sangue de médicos pediatras voluntários, as quais foram submetidas ao teste de ELISA. Um questionário sobre história de sarampo e situaçäo vacinal foi respondido pelos pediatras estudados. Resultados: A maioria dos pediatras 147/150 tinha títulos protetores: sendo 80,3 por cento sem e 19,7 por cento com história pregressa de sarampo. Em 2 por cento dos pediatras as sorologias foram negativas. Nos sem história de doença, 67 por cento afirmavam terem sido vacinados e 33 por cento apesar de apresentarem títulos protetores ignoravam sua situaçäo vacinal. Dos 79 médicos vacinados, 81 por cento tinham recebido a vacina há pelo menos 25 anos e mantido títulos protetores. Dos 3 com sorologias negativas, um referia vacinaçäo anterior. Conclusöes: Apesar da elevada soroprevalência para sarampo, 2 por cento de pessoas susceptíveis podem constituir grupo de risco para aquisiçäo e disseminaçäo da doença em situaçäo epidêmica

Análise de programas de monitorizaçäo individual / Analysis of individual monitoring program

O monitor individual tem por finalidade registrar os níveis de radiação a que os trabalhadores ocupacionalmente expostos estão submetidos, verificando se estes estão de acordo com os limites primários estabelecidos na Norma da Comissão Nacional de Energia Nuclear (CNEN) NE-3.01. Foram elaborados roteiros de inspeção, onde um dos itens avaliados é o programa de monitoração individual do estabelecimento. Verificou-se, através da análise destes, que muitos estabelecimentos não forneciam monitores individuais ou utilizavam incorretamente os mesmos.