Consulta: creatorFacets:"Barbosa,A.A."
Registros recuperados: 4
Data/hora: 03/06/2024 02:59:05

Variação aniônica da dieta sobre características ósseas de frangos de corte: resistência à quebra, composição orgânica e mineral
Provedor de dados: Arquivo Brasileiro de Medicina Veterinária e Zootecnia
Autores: Araújo,G.M.; Vieites,F.M.; Barbosa,A.A.; Caramori Junior,J.G.; Santos,A.L.; Moraes,G.H.K.; Abreu,J.G.; Muller,E.S.
Avaliou-se a composição química e a resistência óssea do tibiotarso de frangos de corte aos 21 dias de idade. Foram determinados os percentuais ósseos de proteínas colagenosas (PC) e proteínas não colagenosas (PNC) e de cálcio, fósforo, potássio e sódio. Foram utilizados 650 pintinhos machos de marca comercial, alimentados com dietas à base de milho e farelo de soja. Foi utilizado delineamento em blocos ao acaso com cinco repetições e 26 aves por unidade experimental. Os tratamentos consistiram na suplementação da dieta basal com NH4Cl a fim de se obter cinco níveis -50; 0; 50; 100 e 150mEq/kg de balanço eletrolítico (BE). O nível de BE influenciou os teores de fósforo, potássio, sódio, PC e PNC, relação Ca:P e a resistência à quebra. A redução do balanço...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Frango de corte; Acidose metabólica; Balanço eletrolítico; Tibiotarso.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352011000400022

Sleep disorder or simple sleep ontogeny? Tendency for morningness is associated with worse sleep quality in the elderly
Provedor de dados: Brazilian Journal of Medical and Biological Research
Autores: Barbosa,A.A.; Miguel,M.A.L.; Tufik,S.; Sabino,F.C.; Cendoroglo,M.S.; Pedrazzoli,M.
The objective of this study was to evaluate the alterations in sleep and circadian parameters during the aging process. The study sample comprises volunteers older than 18 up to 90 years of age that answered the Pittsburgh Sleep Quality Index (PSQI) and the Horne and Östberg circadian preference questionnaire. We observed that the shift to morningness with increasing age is associated with a significant worsening in sleep quality. We discuss that this sleep profile characterized by morningness and worse sleep quality observed in elderly, when compared to younger people, reflects not necessarily a pathological state, but an expected profile for this age group.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Elderly; Sleep quality; Circadian rhythmicity; Chronotype; Sleep ontogeny.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2016001000606

Cardiovascular responses to locomotor activity and feeding in unrestrained three-toed sloths, Bradypus variegatus
Provedor de dados: Brazilian Journal of Medical and Biological Research
Autores: Duarte,D.P.F.; Jaguaribe,A.M.; Pedrosa,M.A.C.; Clementino,A.C.C.R.; Barbosa,A.A.; Silva,A.F.V.; Gilmore,D.P.; Da Costa,C.P.
Heart rate (HR) and systolic (SBP), diastolic (DBP) and mean (MBP) blood pressure were recorded by biotelemetry in nine conscious unrestrained sloths for 1 min every 15 min over a 24-h period. The animals were allowed to freely move in an acoustically isolated and temperature-controlled (24 ± 1ºC) experimental room with light-dark cycle (12/12 h). Behavior was closely monitored through a unidirectional visor and classified as resting (sitting or suspended), feeding (chewing and swallowing embauba leaves, Cecropia adenops), or locomotor activity around the tree trunk or on the room floor. Locomotor activity caused statistically significant increases in SBP (+8%, from 121 ± 22 to 131 ± 18 mmHg), DBP (+7%, from 86 ± 17 to 92 ± 10 mmHg), MBP (+8%, from 97 ± 19...
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Tree-toed sloth; Heart rate; Blood pressure; Locomotor activity; Feeding behavior.
Ano: 2004
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2004001000016

Do Caucasian and Asian clocks tick differently?
Provedor de dados: Brazilian Journal of Medical and Biological Research
Autores: Barbosa,A.A.; Pedrazzoli,M.; Koike,B.D.V.; Tufik,S.
The Period 3 and Clock genes are important components of the mammalian molecular circadian system. Studies have shown association between polymorphisms in these clock genes and circadian phenotypes in different populations. Nevertheless, differences in the pattern of allele frequency and genotyping distribution are systematically observed in studies with different ethnic groups. To investigate and compare the pattern of distribution in a sample of Asian and Caucasian populations living in Brazil, we evaluated two well-studied polymorphisms in the clock genes: a variable number of tandem repeats (VNTR) in PER3 and a single nucleotide polymorphism (SNP) in CLOCK. The aim of this investigation was to search for clues about human evolutionary processes related...
Tipo: Info:eu-repo/semantics/other
Palavras-chave: PER3 gene; CLOCK gene; Circadian rhythms; Asian; Caucasian; Ethnic.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2010000100013