353 research outputs found
Effects of Replacing Dry-rolled Corn with Increasing Levels of Corn Dried Distillers Grains with Solubles on Characteristics of Digestion, Microbial Protein Synthesis and Digestible Energy of Diet in Hair Lambs Fed High-concentrate Diets.
Four male lambs (Katahdin; average live weight 25.9±2.9 kg) with "T" type cannulas in the rumen and proximal duodenum were used in a 4×4 Latin square experiment to evaluate the influence of supplemental dry distillers grain with solubles (DDGS) levels (0, 10, 20 and 30%, dry matter basis) in substitution for dry-rolled (DR) corn on characteristics of digestive function and digestible energy (DE) of diet. Treatments did not influence ruminal pH. Substitution of DR corn with DDGS increased ruminal neutral detergent fiber (NDF) digestion (quadratic effect, p<0.01), but decreased ruminal organic matter (OM) digestion (linear effect, p<0.01). Replacing corn with DDGS increased (linear, p≤0.02) duodenal flow of lipids, NDF and feed N. But there were no treatment effects on flow to the small intestine of microbial nitrogen (MN) or microbial N efficiency. The estimated UIP value of DDGS was 44%. Postruminal digestion of OM, starch, lipids and nitrogen (N) were not affected by treatments. Total tract digestion of N increased (linear, p = 0.04) as the DDGS level increased, but DDGS substitution tended to decrease total tract digestion of OM (p = 0.06) and digestion of gross energy (p = 0.08). However, it did not affect the dietary digestible energy (DE, MJ/kg), reflecting the greater gross energy content of DDGS versus DR corn in the replacements. The comparative DE value of DDGS may be considered similar to the DE value of the DR corn it replaced up to 30% in the finishing diets fed to lambs
Representatividad de mamíferos amenazados en el Sistema Departamental de Áreas Protegidas (SIDAP) del Quindío, Colombia
The main objective of protected areas (PA) is to maintain representative samples of biodiversity. Since biodiversity as a whole is impossible to conserve, threatened species are usually used as substitutes. Under this premise ‚the purpose of this work was to evaluate the representativeness of threatened non-flying mammals in the departmental system of protected areas (SIDAP) of Quindío‚ as well as to identify important areas for their conservation. Records of Leopardus tigrinus ‚Tapirus pinchaque‚ Pudu mephistophiles‚ reTremarctos ornatus ‚Aotus lemurinus‚ Dinomys branickii and Lontra longicaudis were collected and their potential geographic distribution was estimated. The potential distribution of threatened mammals was well represented in SIDAP Quindío (between 48% and 100%) except for L. longicaudis with 15‚42% of its distribution included in PAs ‚which coincides with the low representativeness of the lowlands in the system. As for the eastern and northeastern part of the department, on-site conservation opportunities are barely apparent ‚because the largest area corresponds to the Regional Integrated Management Districts (DRMI) in the municipalities of Salento and Genoa‚ where the management categories are flexible so an adjustment of its category would be suggested. The need to strengthen SIDAP to ensure the conservation of threatened mammal species and increase the representation of ecosystems in this area is evident. In conclusion ‚the declaration of PA in low-lying areas of the department is recommended‚ taking into account the socioeconomic context in the assignment of the conservation and management categories of PAs. On the other hand, in the DRMI of the Quindío river basin and the high Andean moors and forests of the municipality of Genoa, the re-categorization of some areas by more stringent schemes could be considered, especially on state lands with areas of natural coverage.El objetivo principal de las áreas protegidas (AP) es mantener muestras representativas de la biodiversidad. Dado que la biodiversidad en su totalidad es imposible de conservar, usualmente se utilizan especies amenazadas como sustitutas. Bajo esta premisa‚ el propósito del presente trabajo fue evaluarla representatividad de los mamíferos no voladores amenazados en el sistema departamental de áreas protegidas (SIDAP) del Quindío‚ así como identificar áreas importantes para su conservación. Se recopilaron registros de Leopardus tigrinus‚ Tapirus pinchaque‚ Pudu mephistophiles‚Tremarctos ornatus‚ Aotus lemurinus‚ Dinomys branickii y Lontra longicaudis y se estimó su distribución geográfica potencial. La distribución potencial de los mamíferos amenazados estuvo bien representado en el SIDAP Quindío (entre 48% y 100%) excepto para L. longicaudis con el 15‚42% de su distribución incluida en APs‚ que coincide con la poca representatividad de las tierras bajas en el sistema. En cuanto a la zona oriental y nororiental del departamento las oportunidades de conservación in situ son apenas aparentes‚ porque la mayor área corresponde a los Distritos Regional de Manejo Integrado (DRMI) en los municipios de Salento y Génova‚ donde las categorías de manejo son flexibles por lo que se sugeriría un ajuste de su categoría. Se evidencia la necesidad de fortalecer el SIDAP para procurar la conservación de las especies de mamíferos amenazados y aumentar la representación de los ecosistemas de esta zona. En conclusión‚ se recomienda la declaración de AP en zonas bajas del departamento‚ teniendo en cuenta el contexto socioeconómico en la asignación de las categorías de conservación y manejo de las AP. Por su parte, en los DRMI de la cuenca del río Quindío y de los páramos y bosques altoandinos del municipio de Génova, podría considerarse la recategorización de algunas áreas por esquemas más estrictos, especialmente en tierras estatales con áreas decobertura natural
A genome-wide association study follow-up suggests a possible role for PPARG in systemic sclerosis susceptibility
Introduction:
A recent genome-wide association study (GWAS) comprising a French cohort of systemic sclerosis (SSc) reported several non-HLA single-nucleotide polymorphisms (SNPs) showing a nominal association in the discovery phase. We aimed to identify previously overlooked susceptibility variants by using a follow-up strategy.<p></p>
Methods:
Sixty-six non-HLA SNPs showing a P value <10-4 in the discovery phase of the French SSc GWAS were analyzed in the first step of this study, performing a meta-analysis that combined data from the two published SSc GWASs. A total of 2,921 SSc patients and 6,963 healthy controls were included in this first phase. Two SNPs, PPARG rs310746 and CHRNA9 rs6832151, were selected for genotyping in the replication cohort (1,068 SSc patients and 6,762 healthy controls) based on the results of the first step. Genotyping was performed by using TaqMan SNP genotyping assays.
Results:
We observed nominal associations for both PPARG rs310746 (PMH = 1.90 × 10-6, OR, 1.28) and CHRNA9 rs6832151 (PMH = 4.30 × 10-6, OR, 1.17) genetic variants with SSc in the first step of our study. In the replication phase, we observed a trend of association for PPARG rs310746 (P value = 0.066; OR, 1.17). The combined overall Mantel-Haenszel meta-analysis of all the cohorts included in the present study revealed that PPARG rs310746 remained associated with SSc with a nominal non-genome-wide significant P value (PMH = 5.00 × 10-7; OR, 1.25). No evidence of association was observed for CHRNA9 rs6832151 either in the replication phase or in the overall pooled analysis.<p></p>
Conclusion:
Our results suggest a role of PPARG gene in the development of SSc
The Spanish Infrared Camera onboard the EUSO-BALLOON (CNES) flight on August 24, 2014
The EUSO-Balloon (CNES) campaign was held during Summer 2014 with a launch on August
24. In the gondola, next to the Photo Detector Module (PDM), a completely isolated Infrared
camera was allocated. Also, a helicopter which shooted flashers flew below the balloon. We have
retrieved the Cloud Top Height (CTH) with the IR camera, and also the optical depth of the nonclear atmosphere have been inferred with two approaches: The first one is with the comparison of the brightness temperature of the cloud and the real temperature obtained after the pertinent
corrections. The second one is by measuring the detected signal from the helicopter flashers by the IR Camera, considering the energy of the flashers and the location of the helicopter
Reliability and validity of different methods of estimating the one-repetition maximum during the free-weight prone bench pull exercise
This study examined the reliability and validity of three methods of estimating the one-repetition maximum (1RM) during the free-weight prone bench pull exercise. Twenty-six men (22 rowers and four weightlifters) performed an incremental loading test until reaching their 1RM, followed by a set of repetitions-to-failure. Eighteen participants were re-tested to conduct the reliability analysis. The 1RM was estimated through the lifts-to-failure equations proposed by Lombardi and O'Connor, general load-velocity (L-V) relationships proposed by Sánchez-Medina and Loturco and the individual L-V relationships modelled using four (multiple-point method) or only two loads (two-point method). The direct method provided the highest reliability (coefficient of variation [CV] = 2.45% and intraclass correlation coefficient [ICC] = 0.97), followed by the Lombardi's equation (CV = 3.44% and ICC = 0.94), and no meaningful differences were observed between the remaining methods (CV range = 4.95-6.89% and ICC range = 0.81-0.91). The lifts-to-failure equations overestimated the 1RM (3.43-4.08%), the general L-V relationship proposed by Sánchez-Medina underestimated the 1RM (-3.77%), and no significant differences were observed for the remaining prediction methods (-0.40-0.86%). The individual L-V relationship could be recommended as the most accurate method for predicting the 1RM during the free-weight prone bench pull exercise
Results of an early access treatment protocol of daratumumab monotherapy in spanish patients with relapsed or refractory multiple myeloma
Daratumumab is a human CD38-targeted monoclonal antibody approved as monotherapy for heavily pretreated relapsed and
refractory multiple myeloma. We report findings for the Spanish cohort of an open-label treatment protocol that provided early access
to daratumumab monotherapy and collected safety and patient-reported outcomes data for patients with relapsed or refractory
multiple myeloma. At 15 centers across Spain, intravenous daratumumab (16mg/kg) was administered to 73 patients who had ≥3
prior lines of therapy, including a proteasome inhibitor and an immunomodulatory drug, or who were double refractory to both. The
median duration of daratumumab treatment was 3.3 (range: 0.03–13.17) months, with a median number of 12 (range: 1–25)
infusions. Grade 3/4 treatment-emergent adverse events were reported in 74% of patients and included lymphopenia (28.8%),
thrombocytopenia (27.4%), neutropenia (21.9%), leukopenia (19.2%), and anemia (15.1%). Common (>5%) serious treatmentemergent adverse events included respiratory tract infection (9.6%), general physical health deterioration (6.8%), and back pain
(5.5%). Infusion-related reactions occurred in 45% of patients. The median change from baseline in all domains of the EQ-5D-5L and
EORTC QLQ-C30 was mostly 0. A total of 18 (24.7%) patients achieved a partial response or better, with 10 (13.7%) patients
achieving a very good partial response or better. Median progression-free survival was 3.98 months. The results of this early access
treatment protocol are consistent with previously reported trials of daratumumab monotherapy and confirm its safety and antitumoral
efficacy in Spanish patients with heavily treated relapsed or refractory multiple myeloma
The cadherin–catenin complex in laryngeal squamous cell carcinoma
Abnormal Wnt signaling and impaired cell–cell adhesion due to abnormal E-cadherin and β-catenin function have been implicated in many cancers, but have not been fully explored in laryngeal squamous cell carcinoma. In this study, β-catenin cellular location and E-cadherin expression levels were analyzed in 16 laryngeal squamous cell carcinomas (LSCCs) (9 glottic and 7 supraglottic) and 11 samples of non-tumoral inflammatory larynx tissue, using immunohistochemical methods. All non-tumoral tissues showed equally strong membranous expression of β-catenin, while cytoplasmic expression was found in only 3 of the 11 samples. By contrast, whereas 8/9 glottic LSCCs exhibited only membranous expression of β-catenin, 6/7 supraglottic LSCCs displayed both membranous and cytoplasmic expression (p = 0.003). Strong E-cadherin staining was observed in 9/11 non-tumoral tissues and 7/9 glottic LSCCs, whereas 4/7 supraglottic LSCCs exhibited weak expression. Reduced membrane expression of E-cadherin and cytoplasmic retention of β-catenin in supraglottic LSCC seems to be related with more aggressive biological behavior which has been described in clinical studies. Further research is required to clarify the involvement of β-catenin in the mechanism associated with malignant transformation in laryngeal tissues
Genetic and environmental variance and covariance parameters for some reproductive traits of Holstein and Jersey cattle in Antioquia (Colombia)
The cadherin–catenin complex in nasopharyngeal carcinoma
Abnormal Wnt signaling and impaired cell–cell adhesion due to abnormal E-cadherin and β-catenin function have been implicated in many cancers, but have not been fully explored in nasopharyngeal carcinoma. The aim of this study was to analyze β-Catenin cellular location and E-cadherin expression levels in nasopharyngeal carcinoma. E-cadherin expression levels were also correlated with clinical data and underlying pathology. β-Catenin and E-cadherin expression were examined in 18 nasopharyngeal carcinoma and 7 non-tumoral inflammatory pharynx tissues using immunohistochemical methods. Patient clinical data were collected, and histological evaluation was performed by hematoxylin/eosin staining. β-catenin was detected in membrane and cytoplasm in all cases of nasopharyngeal carcinoma, regardless of histological type; in non-tumoral tissues, however, β-catenin was observed only in the membrane. As for E-cadherin expression levels, strong staining was observed in most non-tumoral tissues, but staining was only moderate in nasopharyngeal carcinoma tissues. E-cadherin expression was associated with β-catenin localization, study group, metastatic disease, and patient outcomes. Reduced levels of E-cadherin protein observed in nasopharyngeal carinoma may play an important role in invasion and metastasis. Cytoplasmic β-catenin in nasopharyngeal carcinoma may impair cell–cell adhesion, promoting invasive behavior and a metastatic tumor phenotype
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