1,476 research outputs found

    Substance use and sexual function in juvenile idiopathic arthritis

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    AbstractObjectiveTo evaluate alcohol/tobacco/illicit drug use and sexual function in adolescent juvenile idiopathic arthritis (JIA) and healthy controls.Methods174 adolescents with pediatric rheumatic diseases were selected. A cross-sectional study with 54 JIA patients and 35 controls included demographic/anthropometric data and puberty markers assessments, physician-conducted CRAFFT (car/relax/alone/forget/friends/trouble) screen tool for substance abuse/dependence high risk and a questionnaire that evaluated sexual function, bullying and alcohol/tobacco/illicit drug use. Clinical/laboratorial data and treatment were also assessed in JIA.ResultsThe median current age was similar between JIA patients and controls [15(10–19) vs. 15(12–18) years, p=0.506]. Frequencies of alcohol/tobacco/illicit drug use were high and similar in both JIA and controls (43% vs. 46%, p=0.829). However, age at alcohol onset was significantly higher in those with JIA [15(11–18) vs. 14(7–18) years, p=0.032], particularly in polyarticular onset (p=0.040). High risk for substance abuse/dependence (CRAFFT score≥2) was found in both groups (13% vs. 15%, p=1.000), likewise bullying (p=0.088). Further analysis of JIA patients regarding alcohol/tobacco/illicit drug use showed that the median current age [17(14–19) vs. 13(10–19)years, p<0.001] and education years [11(6–13) vs. 7(3–12)years, p<0.001] were significant higher in those that used substances. Sexual activity was significantly higher in the former group (48% vs. 7%, p<0.001). A positive correlation was evidenced between CRAFFT score and current age in JIA patients (p=0.032, r=+0.296).ConclusionA high risk for substance abuse/dependence was observed in both JIA and controls. JIA substance users were more likely to have sexual intercourse. Therefore, routine screening is suggested in all visits of JIA adolescents

    Millet Fermented by Different Combinations of Yeasts and Lactobacilli: Effects on Phenolic Composition, Starch, Mineral Content and Prebiotic Activity

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    Millet is the sixth-highest yielding grain in the world and a staple crop for millions of people. Fermentation was applied in this study to improve the nutritional properties of pearl millet. Three microorganism combinations were tested: Saccharomyces boulardii (FPM1), Saccharomyces cerevisiae plus Campanilactobacillus paralimentarius (FPM2) and Hanseniaspora uvarum plus Fructilactobacillus sanfranciscensis (FPM3). All the fermentation processes led to an increase in minerals. An increase was observed for calcium: 254 ppm in FPM1, 282 ppm in FPM2 and 156 ppm in the unfermented sample. Iron increased in FPM2 and FPM3 (approx. 100 ppm) with respect the unfermented sample (71 ppm). FPM2 and FPM3 resulted in richer total phenols (up to 2.74 mg/g) compared to the unfermented sample (2.24 mg/g). Depending on the microorganisms, it was possible to obtain different oligopeptides with a mass cut off &lt;= 10 kDalton that was not detected in the unfermented sample. FPM2 showed the highest resistant starch content (9.83 g/100 g) and a prebiotic activity on Bifidobacterium breve B632, showing a significant growth at 48 h and 72 h compared to glucose (p &lt; 0.05). Millet fermented with Saccharomyces cerevisiae plus Campanilactobacillus paralimentarius can be proposed as a new food with improved nutritional properties to increase the quality of the diet of people who already use millet as a staple food

    Phylogeography of human Y-chromosome haplogroup Q3-L275 from an academic/ citizen science collaboration

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    Background: The Y-chromosome haplogroup Q has three major branches: Q1, Q2, and Q3. Q1 is found in both Asia and the Americas where it accounts for about 90% of indigenous Native American Y-chromosomes; Q2 is found in North and Central Asia; but little is known about the third branch, Q3, also named Q1b-L275. Here, we combined the efforts of population geneticists and genetic genealogists to use the potential of full Y-chromosome sequencing for reconstructing haplogroup Q3 phylogeography and suggest possible linkages to events in population history. Results: We analyzed 47 fully sequenced Y-chromosomes and reconstructed the haplogroup Q3 phylogenetic tree in detail. Haplogroup Q3-L275, derived from the oldest known split within Eurasian/American haplogroup Q, most likely occurred in West or Central Asia in the Upper Paleolithic period. During the Mesolithic and Neolithic epochs, Q3 remained a minor component of the West Asian Y-chromosome pool and gave rise to five branches (Q3a to Q3e), which spread across West, Central and parts of South Asia. Around 3–4 millennia ago (Bronze Age), the Q3a branch underwent a rapid expansion, splitting into seven branches, some of which entered Europe. One of these branches, Q3a1, was acquired by a population ancestral to Ashkenazi Jews and grew within this population during the 1st millennium AD, reaching up to 5% in present day Ashkenazi. Conclusions: This study dataset was generated by a massive Y-chromosome genotyping effort in the genetic genealogy community, and phylogeographic patterns were revealed by a collaboration of population geneticists and genetic genealogists. This positive experience of collaboration between academic and citizen science provides a model for further joint projects. Merging data and skills of academic and citizen science promises to combine, respectively, quality and quantity, generalization and specialization, and achieve a well-balanced and careful interpretation of the paternal-side history of human populations

    Ancient Migratory Events in the Middle East: New Clues from the Y-Chromosome Variation of Modern Iranians

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    Knowledge of high resolution Y-chromosome haplogroup diversification within Iran provides important geographic context regarding the spread and compartmentalization of male lineages in the Middle East and southwestern Asia. At present, the Iranian population is characterized by an extraordinary mix of different ethnic groups speaking a variety of Indo-Iranian, Semitic and Turkic languages. Despite these features, only few studies have investigated the multiethnic components of the Iranian gene pool. In this survey 938 Iranian male DNAs belonging to 15 ethnic groups from 14 Iranian provinces were analyzed for 84 Y-chromosome biallelic markers and 10 STRs. The results show an autochthonous but non-homogeneous ancient background mainly composed by J2a sub-clades with different external contributions. The phylogeography of the main haplogroups allowed identifying post-glacial and Neolithic expansions toward western Eurasia but also recent movements towards the Iranian region from western Eurasia (R1b-L23), Central Asia (Q-M25), Asia Minor (J2a-M92) and southern Mesopotamia (J1-Page08). In spite of the presence of important geographic barriers (Zagros and Alborz mountain ranges, and the Dasht-e Kavir and Dash-e Lut deserts) which may have limited gene flow, AMOVA analysis revealed that language, in addition to geography, has played an important role in shaping the nowadays Iranian gene pool. Overall, this study provides a portrait of the Y-chromosomal variation in Iran, useful for depicting a more comprehensive history of the peoples of this area as well as for reconstructing ancient migration routes. In addition, our results evidence the important role of the Iranian plateau as source and recipient of gene flow between culturally and genetically distinct population

    Transcriptional Enhancer Factor Domain Family member 4 Exerts an Oncogenic Role in Hepatocellular Carcinoma by Hippo-Independent Regulation of Heat Shock Protein 70 Family Members.

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    Transcriptional enhancer factor domain family member 4 (TEAD4) is a downstream effector of the conserved Hippo signaling pathway, regulating the expression of genes involved in cell proliferation and differentiation. It is up-regulated in several cancer types and is associated with metastasis and poor prognosis. However, its role in hepatocellular carcinoma (HCC) remains largely unexplored. Using data from The Cancer Genome Atlas, we found that TEAD4 was overexpressed in HCC and was associated with aggressive HCC features and worse outcome. Overexpression of TEAD4 significantly increased proliferation and migration rates in HCC cells in vitro as well as tumor growth in vivo. Additionally, RNA sequencing analysis of TEAD4-overexpressing HCC cells demonstrated that TEAD4 overexpression was associated with the up-regulation of genes involved in epithelial-to-mesenchymal transition, proliferation, and protein-folding pathways. Among the most up-regulated genes following TEAD4 overexpression were the 70-kDa heat shock protein (HSP70) family members HSPA6 and HSPA1A. Chromatin immunoprecipitation-quantitative real-time polymerase chain reaction experiments demonstrated that TEAD4 regulates HSPA6 and HSPA1A expression by directly binding to their promoter and enhancer regions. The pharmacologic inhibition of HSP70 expression in TEAD4-overexpressing cells reduced the effect of TEAD4 on cell proliferation. Finally, by overexpressing TEAD4 in yes-associated protein (YAP)/transcriptional coactivator with PDZ binding motif (TAZ)-knockdown HCC cells, we showed that the effect of TEAD4 on cell proliferation and its regulation of HSP70 expression does not require YAP and TAZ, the main effectors of the Hippo signaling pathway. Conclusion: A novel Hippo-independent mechanism for TEAD4 promotes cell proliferation and tumor growth in HCC by directly regulating HSP70 family members

    Diagnostic Targeted Sequencing Panel for Hepatocellular Carcinoma Genomic Screening

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    Commercially available targeted panels miss genomic regions frequently altered in hepatocellular carcinoma (HCC). We sought to design and benchmark a sequencing assay for genomic screening of HCC. We designed an AmpliSeq custom panel targeting all exons of 33 protein-coding and two long noncoding RNA genes frequently mutated in HCC, TERT promoter, and nine genes with frequent copy number alterations. By using this panel, the profiling of DNA from fresh-frozen (n = 10, 1495×) and/or formalin-fixed, paraffin-embedded (FFPE) tumors with low-input DNA (n = 36, 530×) from 39 HCCs identified at least one somatic mutation in 90% of the cases. Median of 2.5 (range, 0 to 74) and 3 (range, 0 to 76) mutations were identified in fresh-frozen and FFPE tumors, respectively. Benchmarked against the mutations identified from Illumina whole-exome sequencing (WES) of the corresponding fresh-frozen tumors (105×), 98% (61 of 62) and 100% (104 of 104) of the mutations from WES were detected in the 10 fresh-frozen tumors and the 36 FFPE tumors, respectively, using the HCC panel. In addition, 18 and 70 somatic mutations in coding and noncoding genes, respectively, not found by WES were identified by using our HCC panel. Copy number alterations between WES and our HCC panel showed an overall concordance of 86%. In conclusion, we established a cost-effective assay for the detection of genomic alterations in HCC
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