278 research outputs found
The impact of vertebral fractures on quality of life in postmenopausal women with osteoporosis. Validity of the Italian version of mini-Osteoporosis Quality of Life Questionnaire
Background: Vertebral fracture is one of the most commonly occurring osteoporotic fractures. Vertebral fractures associated with osteoporosis are a major cause of pain in elderly people and may hardly affect patient's health-related quality of life (HRQOL), making this an important parameter for assessment in these patients. Studies comparing the performance of HRQOL instruments in osteoporosis are laking. Objectives: The purposes of this study were to assess the effect of vertebral fractures on health HRQOL in postmenopausal women with osteoporosis and to investigate the validity of the Italian version of the mini-Osteoporosis Quality of Life Questionnaire (mini-OQOL) in a clinical setting. Methods: Patients were divided into two study groups, according to fracture status: vertebral fractures (41 patients) and no vertebral fractures (27 patients). Baseline assessments of anthropometric data, medical history, and prevalent fracture status were obtained from all participants. All of the participants were evaluated using both disease-targered mini-OQOL and QUALEFFO, generic instrument (EUROQoL), disability scale (Roland Morris Disability questionnaire- RMDQ) and chronic pain grade questionnaire. Results: Vertebral fractures due to osteoporosis significantly decreases scores on physical function, socio-emotional status, clinical symptoms, and overal HRQOL. Both disease-targeted questionnaires showing an association between the number of prevalent vertebral fractures and decreased HRQOL. Significant correlations existed between scores of similar domains of mini-OQOL and the QUALEFFO, especially for symptoms, physical function, activities of daily living and social function. The receiver operating characteristic (ROC) curve analysis of mini-OQOL and the QUALEFFO indicated that both questionnaires were significantly predictive of vertebral fractures. Number of concomitant diseases presented a weak significant correlation with EUROQoL (p=0,041). Conclusions: Our study suggests that the patients with vertebral fractures due to osteoporosis have a relevant impairment in quality of life. Both disease-targeted questionnaires discriminated between patients with and without vertebral fractures though the mini-OQOL, originally developed to measure the effect of vertebral fractures on quality of life, showed slightly better discriminant power. The benefit of the mini-OQOL is that it is efficient, self administered, and requires 3-4 minutes to complete
A Submillimeter Study of the Star-Forming Region NGC7129
New molecular (13CO J=3-2) and dust continuum (450 and 850 micron) SCUBA maps
of the NGC7129 star forming region are presented, complemented by C18O J=3-2
spectra at several positions within the mapped region. The maps include the
Herbig Ae/Be star LkHalpha 234, the far-infrared source NGC 7129 FIRS2 and
several other pre-stellar sources embedded within the molecular ridge.
The SCUBA maps help us understand the nature of the pre-main sequence stars
in this actively star forming region. A deeply embedded submillimeter source,
SMM2, not clearly seen in any earlier data set, is shown to be a pre-stellar
core or possibly a protostar. The highest continuum peak emission is identified
with the deeply embedded source IRS6, a few arcseconds away from LkHalpha 234,
and also responsible for both the optical jet and the molecular outflow. The
gas and dust masses are found to be consistent, suggesting little or no CO
depletion onto grains. The dust emissivity index is lower towards the dense
compact sources, beta ~1 - 1.6, and higher, beta ~ 2.0, in the surrounding
cloud, implying small size grains in the PDR ridge, whose mantles have been
evaporated by the intense UV radiation.Comment: Accepted by Ap
Evolution of dust and ice features around FU Orionis objects
(abridged) We present spectroscopy data for a sample of 14 FUors and 2 TTauri
stars observed with the Spitzer Space Telescope or with the Infrared Space
Observatory (ISO). Based on the appearance of the 10 micron silicate feature we
define 2 categories of FUors. Objects showing the silicate feature in
absorption (Category 1) are still embedded in a dusty and icy envelope. The
shape of the 10 micron silicate absorption bands is compared to typical dust
compositions of the interstellar medium and found to be in general agreement.
Only one object (RNO 1B) appears to be too rich in amorphous pyroxene dust, but
a superposed emission feature can explain the observed shape. We derive optical
depths and extinction values from the silicate band and additional ice bands at
6.0, 6.8 and 15.2 micron. In particular the analysis of the CO_2 ice band at
15.2 micron allows us to search for evidence for ice processing and constrains
whether the absorbing material is physically linked to the central object or in
the foreground. For objects showing the silicate feature in emission (Category
2), we argue that the emission comes from the surface layer of accretion disks.
Analyzing the dust composition reveals that significant grain growth has
already taken place within the accretion disks, but no clear indications for
crystallization are present. We discuss how these observational results can be
explained in the picture of a young, and highly active accretion disk. Finally,
a framework is proposed as to how the two categories of FUors can be understood
in a general paradigm of the evolution of young, low-mass stars. Only one
object (Parsamian 21) shows PAH emission features. Their shapes, however, are
often seen toward evolved stars and we question the object's status as a FUor
and discuss other possible classifications.Comment: accepted for publication in ApJ; 63 pages preprint style including 8
tables and 24 figure
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Thermal H<sub>2</sub>O emission from the Herbig-Haro flow HH 54
The first detection of thermal water emission from a Herbig-Haro object is presented. The observations were performed with the LWS (Long Wavelength Spectrograph) aboard ISO (Infrared Space Observatory). Besides H2O, rotational lines of CO are present in the spectrum of HH 54. These high-J CO lines are used to derive the physical model parameters of the FIR (far-infrared) molecular line emitting regions. This model fits simultaneously the observed OH and H2O spectra for an OH abundance X(OH)=10-6 and a water vapour abundance X(H2O)=10-5.
At a distance of 250pc, the total CO, OH and H2O rotational line cooling rate is estimated to be 1.3x10-2 L⊙, which is comparable to the mechanical luminosity generated by the 10km s-1 shocks, suggesting that practically all of the cooling of the weak-shock regions is done by these three molecular species alone
Novel putative candidate genes associated with umbilical hernia in pigs.
Abstract: Umbilical hernia is one of the most frequent anatomical defects in pigs in which abdominal contents protrude through the umbilical ring. This condition is considered to have a multifactorial basis in which environmental, infectious and genetic factors play a role. However, a better understanding about the genetic components involved in the umbilical hernia development has not yet been achieved. Although a few studies have mapped QTL for umbilical hernia, just a few candidate genes were reported. Therefore, the aim of this study was to identify genomic regions related to the development of umbilical hernias in pigs and search for potential candidate genes. A GWAS was performed with 92 cases and 233 control crossbred pigs. Five SNPs were associated with umbilical hernia: on SSC4/SSC6/SSC13 and one with unknown position. Candidate genes TBX15 and WARS2 were identified close to the SNP on SSC4. Another two candidate genes were located near the SNP associated with umbilical hernia on SSC13 (LIPI and RBM11). Further validation of these genes should be performed to improve the knowledge about umbilical hernia development in order to improve pig welfare and production by eliminating susceptible animals through genetic selection Resumo: A hérnia umbilical é um dos defeitos anatômicos mais freqüentes em suínos nos quais o conteúdo abdominal se projeta através do anel umbilical. Considera-se que esta condição tem uma base multifatorial na qual fatores ambientais, infecciosos e genéticos desempenham um papel. Entretanto, um melhor entendimento sobre os componentes genéticos envolvidos no desenvolvimento da hérnia umbilical ainda não foi alcançado. Embora alguns estudos tenham mapeado o QTL para a hérnia umbilical, apenas alguns genes candidatos foram relatados. Portanto, o objetivo deste estudo foi identificar regiões genômicas relacionadas ao desenvolvimento de hérnias umbilicais em porcos e buscar potenciais genes candidatos. Um GWAS foi realizado com 92 casos e 233 porcos cruzados de controle. Cinco SNPs foram associados com hérnia umbilical: em SSC4 / SSC6 / SSC13 e um com posição desconhecida. Os genes candidatos TBX15 e WARS2 foram identificados próximos ao SNP em SSC4. Outros dois genes candidatos foram localizados perto do SNP associado à hérnia umbilical na SSC13 (LIPI e RBM11). A validação adicional desses genes deve ser realizada para melhorar o conhecimento sobre o desenvolvimento de hérnia umbilical, a fim de melhorar o bem-estar ea produção de suínos, eliminando os animais suscetíveis por meio da seleção genétic
The involvement of muscle-related genes in the occurrence of scrotal hernia in pigs.
Abstract: The incidence of scrotal hernia is still a problem in the swine production, leading to economic losses and reducing the animal welfare. Although some QTLs and candidate genes have already been associated to scrotal hernia, the genetic mechanisms and genes controlling this pathology remain to be clarified. Therefore, this study aimed to identify genes involved in the scrotal hernia occurrence in pigs. Thus, two experiments were performed: 1) RNA-Seq analysis of the inguinal ring tissue from eight 60-days-old Landrace pigs (4 healthy and 4 affected with scrotal hernia) that were sequenced in the Illumina HiSeq 2500 and 2) quantitative PCR (qPCR) of 8 candidate genes chosen from the inguinal ring transcriptome in 18 MS115 30-days-old pigs (9 normal and 9 affected with scrotal hernia). Based on the differentially expressed (DE) genes in this transcriptome, some candidate genes related to muscle development biological processes (BP), including the muscle structure (ACTA1), intracellular transport (RYR1, MYBPC1), cell adhesion (COL13A1) and apoptosis (MAP1LC3) were found. The expression profile of the DE genes was consistent with the anatomical alterations related to the scrotal hernia development, such as the weakness of the inguinal canal and non-obliteration of the processus vaginalis. In the qPCR analysis, the MYH1 was the only DE gene identified. The downregulation of the MYH1gene might be one of the possible causes of scrotal hernia in swine since its expression had already been reduced in 30-days-old affected pigs. Therefore, the DE genes identified in our study related to muscle development bioprocesses are possibly involved in the occurrence of scrotal hernia in pigs. Resumo: A incidência de hérnia escrotal ainda é um problema na produção de suínos, levando a perdas econômicas e reduzindo o bem-estar animal. Embora alguns QTLs e genes candidatos já tenham sido associados à hérnia escrotal, os mecanismos genéticos e os genes que controlam esta patologia ainda precisam ser esclarecidos. Portanto, este estudo teve como objetivo identificar genes envolvidos na ocorrência de hérnia escrotal em suínos. Assim, foram realizadas duas experiências: 1) Análise de RNA-Seq do tecido anelar inguinal de oito suínos Landrace com 60 dias de idade (4 saudáveis ??e 4 afetados com hérnia escrotal) que foram sequenciados no Illumina HiSeq 2500 e 2) PCR quantitativa (qPCR) de 8 genes candidatos escolhidos do transcriptoma do anel inguinal em 18 porcos MS115 com 30 dias de idade (9 normais e 9 afetados com hérnia escrotal). Com base nos genes diferencialmente expressos (DE) neste transcriptoma, alguns genes candidatos relacionaram-se aos processos biológicos (BP) de desenvolvimento muscular, incluindo a estrutura muscular (ACTA1), transporte intracelular (RYR1, MYBPC1), adesão celular (COL13A1) e apoptose ( MAP1LC3) foram encontrados. O perfil de expressão dos genes DE foi consistente com as alterações anatômicas relacionadas ao desenvolvimento da hérnia escrotal, como a fraqueza do canal inguinal e a não obliteração do processo vaginal. Na análise qPCR, o MYH1 foi o único gene DE identificado. O downregulation do gene MYH1 pode ser uma das possíveis causas de hérnia escrotal em suínos, uma vez que sua expressão já havia sido reduzida em suínos afetados com 30 dias de idade. Portanto, os genes DE identificados em nosso estudo relacionados a bioprocessos de desenvolvimento muscular estão possivelmente envolvidos na ocorrência de hérnia escrotal em suínos
Fibra termoprocessada de mandioca como melhorador de peletes de ração para poedeiras.
A peletização é o processamento térmico mais utilizado em rações para aves no Brasil. Rações peletizadas tendem a apresentar benefícios no desempenho animal, como redução na perda de ração no comedouro e melhor ganho de peso. Entretanto, para que estes benefícios ocorram é necessário assegurar a qualidade física dos peletes, que sofre influência direta da composição da ração, do tempo de condicionamento na peletizadora, bem como da temperatura utilizada no processamento (1). É conhecido que o uso de alimentos fibrosos nas rações pode melhorar a qualidade final dos peletes, mas pouco se sabe sobre os efeitos da fibra da mandioca em rações peletizadas. Assim, objetivou-se avaliar a qualidade de peletes de rações com a inclusão de diferentes níveis de fibra termoprocessada de mandioca
Neuroscience in gambling policy and treatment: an interdisciplinary perspective
Neuroscientific explanations of gambling disorder can help people make sense of their experiences and guide the development of psychosocial interventions. However, the societal perceptions and implications of these explanations are not always clear or helpful. Two workshops in 2013 and 2014 brought together multidisciplinary researchers aiming to improve the clinical and policy-related effects of neuroscience research on gambling. The workshops revealed that neuroscience can be used to improve identification of the dangers of products used in gambling. Additionally, there was optimism associated with the diagnostic and prognostic uses of neuroscience in problem gambling and the provision of novel tools (eg, virtual reality) to assess the effectiveness of new policy interventions before their implementation. Other messages from these workshops were that neuroscientific models of decision making could provide a strong rationale for precommitment strategies and that interdisciplinary collaborations are needed to reduce the harms of gambling
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