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The objective of this study was to evaluate the effect of dehydrated orange by-product on the productive parameters, carcass yield, and meat quality of rabbits in the fattening stage. Four diets with increasing levels of orange by-products (0%, 10%, 20%, and 30%) were evaluated, each with six replicates of two 32-day-old crossbred rabbits that were randomly allocated. The experimental period was from 32 to 70 days of age of the rabbits. A higher weight gain (p < 0.05) was achieved for observed with 20% substitution, along with a better feed conversion, without any effects on carcass yield and meat quality parameters. The treatment with 30% citrus pulp showed no differences (p > 0.05) in the parameters evaluated. Based on our results, dehydrated orange by-product can replace up to 30% of the commercial feed concentrate without affecting performance, yield, and carcass quality in rabbits feeding since 32 to 72 days of age.

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Background Brain volume assessment has become an important outcome within research and treatment of multiple sclerosis (MS). MSmetrix (Icometrix) has been developed specifically for patients with MS. The original healthy, 'normal' population used for determination of the acceptable brain volume data consisted mainly of Europeans. Methods In the present study, results from 295 completely normal magnetic resonance imaging scans from Brazilian subjects were plotted against the original results in MSmetrix. Results With regard to whole brain volume, only 2% of the healthy adult subjects from Brazil were below the 5th percentile of the graph, and for grey matter volume, only 3% of the subjects were below the 5th percentile of MSmetrix standards. Conclusion MSmetrix may be used across different populations.

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BACKGROUND: Social interaction is a lifestyle factor associated with a decreased risk of dementia in several studies. However, specific aspects of these social factors influencing dementia are unknown. This study aimed at evaluating the role of the distinct aspects of social support on the incidence of dementia in a community-based cohort of older people in Brazil. METHODS: A total of 345 healthy and independent elderly subjects living in the community were followed by 12 years. Incident cases of dementia and probable Alzheimer's disease were defined by DSM-IV criteria and NINCDS-ADRDA criteria, respectively. Social variables evaluated were marital status, living arrangement, living children, living sibling, confidant and attending recreational groups. Sex, age, education, Mini-Mental State Examination (MMSE) score, depressive symptoms and family income were entered as co-variates in a Cox proportional hazard model. RESULTS: The absence of confidant was the only social variable associated to higher risk of developing dementia (HR = 5.31; p < 0.001), even after adjustment for age (HR = 1.08; p = 0.048) and baseline MMSE score (HR = 0.79; p = 0.002). CONCLUSIONS: Our data suggest that to have a confidant could be an important lifestyle factor associated with dementia.

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To evaluate the relationship of obesity, cognitive impairment and depressive symptoms in patients with high cardiovascular risk. Methods: A sample of 93 patients aged 50 years or older was selected from the Center of Dyslipidemia and High Cardiovascular Risk from Hospital de Clínicas de Porto Alegre (HCPA). Patients with stroke were excluded. For cognitive evaluation, the MMSE (Mini Mental State Examination) was used. A score of 24 or less was considered as cognitive impairment, and for those who had 4 years or less of education, the cutoff point was 17. The GDS-15 (Geriatric Depression Scale) was also used, with the cutoff of 6 for presence of depressive symptoms. Results: Obese patients showed lower mean MMSE scores compared to non-obese patients (p=0.0012). Additionally, for every one point increase in BMI above 30 there was a 27% increase in the chances of the patient having cognitive impairment. The obese patients presented 31% chance of having cognitive impairment compared with overweight subjects. Conclusions: Our findings corroborated the association between obesity and cognitive impairment in high cardiovascular risk patients. This association however, was not observed for depressive symptoms.

Avaliar a associação entre obesidade, comprometimento cognitivo e sintomas depressivos em pacientes de alto risco cardiovascular. Métodos: Foi selecionada uma amostra de 93 pacientes com 50 anos ou mais em acompanhamento no Centro de Dislipidemia e Alto Risco Cardiovascular do Hospital de Clínicas de Porto Alegre (HCPA). Pacientes com história de acidente vascular cerebral (AVC) foram excluídos. Para a avaliação cognitiva, foi utilizado o MEEM (Mini Exame do Estado Mental). Escores de 24 ou menos foram considerados como comprometimento cognitivo, para pacientes com 4 ou menos anos de escolaridade, o ponto de corte usado foi de 17 pontos. A escala GDS-15 (Geriatric Depression Scale) também foi utilizada, sendo adotado o ponto de corte 6 para a presença de sintomas depressivos. Resultados: Pacientes obesos apresentaram valores menores na média dos escores do MEEM quando comparados a pacientes não-obesos (p=0,0012). Além disso, para cada ponto de acréscimo no IMC acima de 30, houve um aumento de 27% na chance do paciente ter comprometimento cognitivo. Os pacientes obesos apresentaram 31% de chance de ter comprometimento cognitivo quando comparados com pacientes com sobrepeso. Conclusões: Os achados do presente estudo corroboram a associação entre obesidade e comprometimento cognitivo em pacientes de alto risco cardiovascular. Entretanto, esta associação não foi observada ao se analisar os sintomas depressivos.

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The increase in life expectancy can influence the prevalence of dementias in the population. Instruments that evaluate cognitive functions such as the Mini Mental State Examination (MMSE) are necessary for the investigation of dementia. The supposition that patient score on the MMSE can be influenced by academic level points to the need for establishing cut-off values that take into account educational level. The aim of this study was to review MMSE cut-off values adjusted for schooling in a large southern Brazilian sample. Method: Demographic data and MMSE scores of 968 subjects, of which 162 were dementia patients and 806 healthy participants, were analyzed. The sample was grouped according to education. The cut-off values were established by ROC Curve analysis. Results: The total sample mean age was 70.6±7.3 years, and the mean years of education was 7.2±5.3. The cut-off score of 23 points (sensitivity=86%, specificity=83%) was observed as the optimal level to detect dementia on the MMSE instrument for the overall sample. Regarding level of schooling, the cut-off values were: 21 for the illiterate group (sensitivity=93%, specificity=82%), 22 for the low education group (sensitivity=87%, specificity=82%), 23 for the middle education group (sensitivity=86%, specificity=87%) and 24 for the high education group (sensitivity=81%, specificity=87%). Conclusions: The cut-off values revealed by this analysis, and adjusted for level of schooling, can improve the clinical evaluation of cognitive deficits.

A elevação da expectativa de vida pode influenciar na prevalência das demências na população. Instrumentos que avaliem as funções cognitivas, como o Mini Exame do Estado Mental (MEEM), são necessários para a investigação de demência. A suposição de que o resultado do MEEM de um paciente pode ser influenciado pelo nível de escolaridade demonstra a necessidade do estabelecimento de pontos de corte que levem em consideração a escolaridade. O objetivo deste estudo foi revisar os pontos de corte do MEEM ajustados para a escolaridade em uma grande amostra do sul do Brasil. Método: Dados demográficos e escores do MEEM de 968 indivíduos, 162 pacientes com demência e 806 participantes saudáveis foram analisados. A amostra foi agrupada de acordo com a educação. Para estabelecer os pontos de corte foi utilizada a Curva ROC. Resultados: A média de idade da amostra total foi 70,6±7,3 e a média de anos de estudo foi 7,2±5,3. O ponto de corte 23 (sensibilidade=86%), (especificidade=83%) foi o ponto que melhor detectou demência na amostra total. Considerando o nível de escolaridade, os pontos de corte foram: 21 no grupo de analfabetos (sensibilidade=93%, especificidade=82%), 22 no grupo de baixa escolaridade (sensibilidade=87%, especificidade=82%), 23 no grupo de média escolaridade (sensibilidade=86%, especificidade=87%) e 24 no grupo de alta escolaridade (sensibilidade=81%, especificidade=87%). Conclusões: Os pontos de corte, quando se considera a escolaridade, podem aperfeiçoar a avaliação clínica dos déficits cognitivos.

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The increase in life expectancy can influence the prevalence of dementias in the population. Instruments that evaluate cognitive functions such as the Mini Mental State Examination (MMSE) are necessary for the investigation of dementia. The supposition that patient score on the MMSE can be influenced by academic level points to the need for establishing cut-off values that take into account educational level. The aim of this study was to review MMSE cut-off values adjusted for schooling in a large southern Brazilian sample. METHOD: Demographic data and MMSE scores of 968 subjects, of which 162 were dementia patients and 806 healthy participants, were analyzed. The sample was grouped according to education. The cut-off values were established by ROC Curve analysis. RESULTS: The total sample mean age was 70.6±7.3 years, and the mean years of education was 7.2±5.3. The cut-off score of 23 points (sensitivity=86%, specificity=83%) was observed as the optimal level to detect dementia on the MMSE instrument for the overall sample. Regarding level of schooling, the cut-off values were: 21 for the illiterate group (sensitivity=93%, specificity=82%), 22 for the low education group (sensitivity=87%, specificity=82%), 23 for the middle education group (sensitivity=86%, specificity=87%) and 24 for the high education group (sensitivity=81%, specificity=87%). CONCLUSIONS: The cut-off values revealed by this analysis, and adjusted for level of schooling, can improve the clinical evaluation of cognitive deficits.

A elevação da expectativa de vida pode influenciar na prevalência das demências na população. Instrumentos que avaliem as funções cognitivas, como o Mini Exame do Estado Mental (MEEM), são necessários para a investigação de demência. A suposição de que o resultado do MEEM de um paciente pode ser influenciado pelo nível de escolaridade demonstra a necessidade do estabelecimento de pontos de corte que levem em consideração a escolaridade. O objetivo deste estudo foi revisar os pontos de corte do MEEM ajustados para a escolaridade em uma grande amostra do sul do Brasil. MÉTODO: Dados demográficos e escores do MEEM de 968 indivíduos, 162 pacientes com demência e 806 participantes saudáveis foram analisados. A amostra foi agrupada de acordo com a educação. Para estabelecer os pontos de corte foi utilizada a Curva ROC. RESULTADOS: A média de idade da amostra total foi 70,6±7,3 e a média de anos de estudo foi 7,2±5,3. O ponto de corte 23 (sensibilidade=86%), (especificidade=83%) foi o ponto que melhor detectou demência na amostra total. Considerando o nível de escolaridade, os pontos de corte foram: 21 no grupo de analfabetos (sensibilidade=93%, especificidade=82%), 22 no grupo de baixa escolaridade (sensibilidade=87%, especificidade=82%), 23 no grupo de média escolaridade (sensibilidade=86%, especificidade=87%) e 24 no grupo de alta escolaridade (sensibilidade=81%, especificidade=87%). CONCLUSÕES: Os pontos de corte, quando se considera a escolaridade, podem aperfeiçoar a avaliação clínica dos déficits cognitivos.

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To evaluate the relationship of obesity, cognitive impairment and depressive symptoms in patients with high cardiovascular risk. METHODS: A sample of 93 patients aged 50 years or older was selected from the Center of Dyslipidemia and High Cardiovascular Risk from Hospital de Clínicas de Porto Alegre (HCPA). Patients with stroke were excluded. For cognitive evaluation, the MMSE (Mini Mental State Examination) was used. A score of 24 or less was considered as cognitive impairment, and for those who had 4 years or less of education, the cutoff point was 17. The GDS-15 (Geriatric Depression Scale) was also used, with the cutoff of 6 for presence of depressive symptoms. RESULTS: Obese patients showed lower mean MMSE scores compared to non-obese patients (p=0.0012). Additionally, for every one point increase in BMI above 30 there was a 27% increase in the chances of the patient having cognitive impairment. The obese patients presented 31% chance of having cognitive impairment compared with overweight subjects. CONCLUSIONS: Our findings corroborated the association between obesity and cognitive impairment in high cardiovascular risk patients. This association however, was not observed for depressive symptoms.

Avaliar a associação entre obesidade, comprometimento cognitivo e sintomas depressivos em pacientes de alto risco cardiovascular. MÉTODOS: Foi selecionada uma amostra de 93 pacientes com 50 anos ou mais em acompanhamento no Centro de Dislipidemia e Alto Risco Cardiovascular do Hospital de Clínicas de Porto Alegre (HCPA). Pacientes com história de acidente vascular cerebral (AVC) foram excluídos. Para a avaliação cognitiva, foi utilizado o MEEM (Mini Exame do Estado Mental). Escores de 24 ou menos foram considerados como comprometimento cognitivo, para pacientes com 4 ou menos anos de escolaridade, o ponto de corte usado foi de 17 pontos. A escala GDS-15 (Geriatric Depression Scale) também foi utilizada, sendo adotado o ponto de corte 6 para a presença de sintomas depressivos. RESULTADOS: Pacientes obesos apresentaram valores menores na média dos escores do MEEM quando comparados a pacientes não-obesos (p=0,0012). Além disso, para cada ponto de acréscimo no IMC acima de 30, houve um aumento de 27% na chance do paciente ter comprometimento cognitivo. Os pacientes obesos apresentaram 31% de chance de ter comprometimento cognitivo quando comparados com pacientes com sobrepeso. CONCLUSÕES: Os achados do presente estudo corroboram a associação entre obesidade e comprometimento cognitivo em pacientes de alto risco cardiovascular. Entretanto, esta associação não foi observada ao se analisar os sintomas depressivos.

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The aging of the population is a universal phenomenon with direct consequences upon the public health system. One of the main repercussions of the growth in this sector of the population is the increased prevalence of disorders such as dementia and depression which are very frequent among the elderly. The relationship between cardiovascular risk factors, dementia and depression have been addressed in many recent investigations. OBJECTIVES: To evaluate the relationship of cognitive performance and depressive symptoms with cardiovascular risk in the elderly. METHODS: 94 high cardiovascular risk elderly patients and 160 healthy community elderly were evaluated cross-sectionally. The Mini Mental State Examination (MMSE) and the Geriatric Depression Scale (GDS-15) were used as the main measures. The cutoff for presence of depression was 6 on the GDS. RESULTS: The high cardiovascular risk elderly group showed significantly lower scores on the MMSE (p<0.001) and was significantly associated to depression (p<0.001), independently of education. The logistic regression analysis for depression as the dependent variable, age and group (healthy community or high cardiovascular risk elderly) were kept in the final equation. Higher age (Odds Ratio=0.92; 95% CI 0.86-0.98) and high cardiovascular risk elderly (OR=2.99; 95% CI 1.36-6.59) were associated to depression. CONCLUSIONS: The present findings corroborate the different cognitive performance of elderly with high cardiovascular risk factors and the association of depressive symptoms with this group.

O envelhecimento da população é um fenômeno mundial com conseqüências diretas no sistema de saúde pública. Uma das principais conseqüências do crescimento desta parcela da população é o aumento da prevalência de doenças como demência e depressão que são muito freqüentes entre os idosos. Recentemente, a relação entre fatores de risco cardiovasculares, depressão e demência foi abordada em várias investigações. OBJETIVOS: Avaliar a relação de desempenho cognitivo e sintomas depressivos com risco cardiovascular em idosos. MÉTODOS: 94 idosos de alto risco cardiovascular e 160 idosos saudáveis da comunidade foram avaliados num corte transversal. O Mini-Exame do Estado Mental (MEEM) e a escala de depressão geriátrica (GDS-15) foram usados para as medidas principais. O ponto de corte para presença de sintomas depressivos foi 6 na GDS. RESULTADOS: O grupo de alto risco cardiovascular mostrou escores significativamente mais baixos no MEEM (p<0001) independente da educação, e foi significativamente associado a depressão (p<0,001). A análise de regressão logística para depressão como variável dependente, idade e grupo (idosos saudáveis da comunidade ou idosos de alto risco cardiovascular) foram mantidos na equação final. Maior idade (Razão de Chance=0,92, IC 95% 0,86­0,98) e idosos de alto risco cardiovascular (RC=2,99; IC 95% 1,36­6,59) estavam associados à presença de depressão. CONCLUSÕES: Os achados do presente estudo corroboram o desempenho cognitivo diferencial dos idosos de alto risco cardiovascular e a associação de sintomas depressivos a este grupo.

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Epidural administration of bupivacaine and meperidine produces analgesia in several animal species and in humans. A prospective randomized study was conducted in 18 healthy horses to compare the effect of these 2 drugs administered by the epidural route. Animals were divided into 3 treatment groups of 6 animals each. All drugs were injected by the epidural route in all animals between the 1st and 2nd coccygeal vertebrae. Treatment 1 (BUP)--0.06 mg/kg of body weight of 0.5% hyperbaric bupivacaine; treatment 2 (MEP)--0.6 mg/kg of body weight of 5% meperidine; treatment 3 (SS)--0.9% saline solution (control group). Heart rate, arterial pressure, respiratory rate, rectal temperature, analgesia, sedation, and motor-blocking were determined before drug administration (baseline values); at 5, 10, 15, and 30 minutes after drug administration, and then at 30-minute intervals thereafter. Both hyperbaric bupivacaine and meperidine administered epidurally produced complete bilateral perineal analgesia in all horses. The onset of analgesia was 6, s = 2.6 minutes after injection of bupivacaine, as opposed to 9, s = 2 minutes after meperidine. The duration of analgesia was 240, s = 57 minutes for meperidine and 320, s = 30 minutes for bupivacaine. Heart and respiratory rates, arterial pressure, and rectal temperature did not change (P < 0.05) significantly from basal values after the epidural administration of bupivacaine, meperidine, or saline solution. To conclude, both bupivacaine and meperidine induced long-lasting perineal analgesia, with minimal cardiovascular effects. Analgesia was induced faster and lasted longer with bupivacaine.

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OBJECTIVE: To determine the analgesic, sedative, motor, cardiac and respiratory effects of epidural clonidine in cattle. STUDY DESIGN: Prospective randomized study. ANIMAL POPULATION: Six healthy male cattle weighing between 236 and 365 kg. METHODS: To investigate the effect of epidural clonidine, the animals received 2 and 3 micro g kg(-1) of clonidine diluted to 8 mL with 0.9% saline. Two treatments were utilized as controls. The animals from the first control treatment received 2% lidocaine (0.4 mg kg(-1)) and those from the second received an equal volume of 0.9% saline. Each animal received each treatment in random order. Evaluations of analgesia, sedation, muscle relaxation, heart rate, respiratory rate and rectal temperature were obtained at 0 (basal), 2, 5, 10, 15 and 30 minutes after epidural injection, and then at 30-minute intervals until loss of analgesia occurred. All the animals received a standard noxious stimulus consisting of needle insertion into the skin and deep muscle; a 4-point scale was used to score the response. A second scale was used to score sedation and a third for muscle relaxation. RESULTS: Both doses of clonidine were effective in producing analgesia of the tail, perineum, and upper hindlimb. Complete analgesia was present before (mean +/- SE = 9 +/- 4 vs. 19 +/- 9 minutes) and lasted longer (311 +/- 33 vs. 192 +/- 27 minutes) for the 3 microg kg(-1) versus the 2 microg kg(-1) dose, respectively. A dose-dependent sedative effect of clonidine was also observed, with a peak effect between 60 and 180 minutes. No effects on heart or respiratory rates were observed with either dose of clonidine. CONCLUSIONS: Epidural administration of 2 and 3 micro g kg(-1) of clonidine in cattle in this study provided bilateral perineal analgesia/anesthesia with a dose-dependent onset and duration of action. CLINICAL RELEVANCE: Further studies are required to determine whether the analgesia is sufficient for surgery.

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Várias definiçöes de saúde individual têm sido dadas como um todo: bem-estar físico, mental e social. Atualmente, é possível avaliar o impacto de saúde na qualidade de vida através de medidas subjetivas. Itens sobre saúde periodontal foram extraídos de uma medida social: "The dental impact on daily living". Mais de 60 por cento dos indivíduos relataram algum sintoma e demonstraram insatisfaçäo, independentemente de sexo ou classe social. A participaçäo das pessoas ajuda o profissional a compor sua visäo clínica com as necessidades da populaçäo

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