966 research outputs found

    Women living with HIV/AIDS who are sexual partners of injecting drug users

    Get PDF
    OBJECTIVE: To analyze perceptions of risk, prevention strategies, their own relationship with drug use and that of their partner's, and future expectations among women living with HIV/AIDS whose partners are drug users. METHODS: This is a qualitative study of women living with HIV/AIDS who receive specialist treatment in São Paulo Municipality. Semi-structured interviews were carried out with 15 women, whose self-reported means of infection were heterosexual relations with a partner who is an injecting drug user. The script for the interviews covered the following areas: childhood, history of sexual relations, use of drugs, impact of seropositivity on daily life, understanding of the prevention of sexually transmitted infections, and perspectives of the future. The material from the interviews was analyzed using content analysis. RESULTS: The study pointed to a difference in the ways that the women live with their own drug use and with that of their partners. Their partners' use of injecting drugs was not primarily associated with a risk of HIV infection, due to attempts to conceal the fact or because they believed that the monogamy-fidelity-confidence trinity would take precedence as a form of protection. CONCLUSIONS: The women's different experiences of drug use should be taken into account and opportunities to discuss with them about the issue are important to ensure that more effective strategies for prevention and care are adopted.OBJETIVO: Analisar as percepções de risco, as estratégias de prevenção, sua própria relação com o uso de drogas e do parceiro e suas expectativas quanto ao futuro relatadas por mulheres vivendo com HIV/Aids parceiras de usuários de drogas. MÉTODOS: Estudo qualitativo sobre mulheres vivendo com HIV/Aids, atendidas em serviço especializado no Município de São Paulo. Foram aplicadas entrevistas semi-estruturadas a 15 mulheres, cuja via de infecção auto-referida foram as relações heterossexuais com parceiro usuário de drogas injetáveis. O roteiro das entrevistas compreendia: infância, história dos relacionamentos amorosos, uso de drogas, impacto da soropositividade no cotidiano, compreensão sobre prevenção de infecções sexualmente transmissíveis, e visão do futuro. A interpretação das entrevistas foi realizada por meio de análise de conteúdo. RESULTADOS: O estudo indicou diversidade da convivência das mulheres com o uso de drogas próprio e do parceiro. O uso de drogas injetáveis pelo parceiro não foi, prioritariamente, associado ao risco de infecção por HIV/Aids, seja por estratégias de ocultamento do fato, seja por considerarem que a tríade monogamia-fidelidade-confiança teria primazia como forma de proteção. CONCLUSÕES: A diversidade da convivência das mulheres com o uso de drogas deve ser considerada e oportunidades de fala e escuta sobre a questão podem ser importantes para a adoção de estratégias mais efetivas de prevenção e cuidado.Universidade de São Paulo Faculdade de Medicina Departamento de Medicina PreventivaUniversidade Federal de São Paulo (UNIFESP) Departamento de Ciências da SaúdePrefeitura Municipal de São Paulo Secretaria Municipal de SaúdeUNIFESP, Depto. de Ciências da SaúdeSciEL

    SavvyCNV: Genome-wide CNV calling from off-target reads

    Get PDF
    This is the uncorrected proof. The final version is available on open access from Public Library of Science via the DOI in this recordData Availability: The SavvyCNV tool and the code used to run the benchmarking comparisons are freely available on github. The tool is available at https://github.com/rdemolgen/SavvySuite. The code used to run the benchmarking comparisons is available at: https://github.com/exeter-matthew-wakeling/SavvyCNV_benchmarking. Our study uses the ICR96 data set for benchmarking, which is publicly available and can be accessed through the European-Genome phenome Archive (EGA) under the accession number EGAS00001002428. The dataset of 2591 samples referred to the molecular genetics department at the Royal Devon and Exeter Hospital for genetic testing cannot be shared due to patient confidentiality issues, as the genotype data could be used to identify individuals and so cannot be made openly available. Requests for access to the anonymised data by researchers will be considered following an application to the Genetic Beta Cell Research Bank (https://www.diabetesgenes.org/current-research/genetic-beta-cell-research-bank/) with proposals reviewed by the Genetic Data Access Committee.Identifying copy number variants (CNVs) can provide diagnoses to patients and provide important biological insights into human health and disease. Current exome and targeted sequencing approaches cannot detect clinically and biologically-relevant CNVs outside their target area. We present SavvyCNV, a tool which uses off-target read data from exome and targeted sequencing data to call germline CNVs genome-wide. Up to 70% of sequencing reads from exome and targeted sequencing fall outside the targeted regions. We have developed a new tool, SavvyCNV, to exploit this 'free data' to call CNVs across the genome. We benchmarked SavvyCNV against five state-of-the-art CNV callers using truth sets generated from genome sequencing data and Multiplex Ligation-dependent Probe Amplification assays. SavvyCNV called CNVs with high precision and recall, outperforming the five other tools at calling CNVs genome-wide, using off-target or on-target reads from targeted panel and exome sequencing. We then applied SavvyCNV to clinical samples sequenced using a targeted panel and were able to call previously undetected clinically-relevant CNVs, highlighting the utility of this tool within the diagnostic setting. SavvyCNV outperforms existing tools for calling CNVs from off-target reads. It can call CNVs genome-wide from targeted panel and exome data, increasing the utility and diagnostic yield of these tests. SavvyCNV is freely available at https://github.com/rdemolgen/SavvySuite.Medical Research Council (MRC)Research EnglandDiabetes U

    Antioxidant Activity and Composition of Propolis Obtained by Different Methods of Extraction

    Get PDF
    Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Ethanolic extracts of propolis obtained with different concentrations of propolis and made using hydrous ethanol with various water/ethanol contents were analyzed. The antioxidant action of the extracts was determined by free radical 1,1-diphenyl-2-picryl-hydrazyl (DPPH center dot) scavenging and by ferric reducing ability power (FRAP), using the ferric-tripyridyl triazine (Fe(3+)-TPTZ) complex. The total phenolic and flavonoid contents were also determined, and the electrospray ionization mass spectrometry spectra (ESI(-)-MS) of the extracts were acquired. The chemical composition of propolis extracts and their antioxidant activity were observed to vary with the concentration of propolis, and especially with the water/ethanol contents of the hydrous ethanol used for extraction. The antioxidant activity of the extracts was also found to be significantly dependent on these extraction parameters, as well as on the composition of the phenolic compounds and flavonoids. FRAP values showed, however, poor correlation with the flavonoid content.225929935Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)FINEPConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq

    The Role of ONECUT1 Variants in Monogenic and Type 2 Diabetes Mellitus

    Get PDF
    This is the author accepted manuscript. The final version is available from the American Diabetes Association via the DOI in this recordData and Resource Availability: The monogenic diabetes patient data used in this study are available from the corresponding author upon reasonable request. The type 2 diabetes data used in this study are available via UK Biobank (https://www.ukbiobank.ac.uk/), subject to necessary approvals.ONECUT1 (also known as HNF6) is a transcription factor involved in pancreatic development and beta-cell function. Recently, biallelic variants in ONECUT1 were reported as a cause of neonatal diabetes mellitus (NDM) in 2 subjects and missense monoallelic variants were associated with type 2 diabetes and possibly maturity-onset diabetes of the young (MODY). Here we examine the role of ONECUT1 variants in NDM, MODY and Type 2 diabetes in large international cohorts of subjects with monogenic diabetes and >400,000 subjects from UK Biobank. We identified a biallelic frameshift ONECUT1 variant as the cause of NDM in one individual. However, we found no enrichment of missense or null ONECUT1 variants among 484 individuals clinically suspected of MODY, in whom all known genes had been excluded. Finally, using a rare variant burden test in the UK Biobank European cohort, we identified a significant association between heterozygous ONECUT1 null variants and type 2 diabetes (P=0.006) but did not find association between missense variants and type 2 diabetes. Our results confirm biallelic ONECUT1 variants as a cause of NDM and highlight monoallelic null variants as a risk factor for type 2 diabetes. These findings confirm the critical role of ONECUT1 in human beta-cell function.Diabetes UKMedical Research Council (MRC)Wellcome TrustNational Institute for Health Research (NIHR

    Informing the design of a national screening and treatment programme for chronic viral hepatitis in primary care: qualitative study of at-risk immigrant communities and healthcare professionals

    Get PDF
    n Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly credited. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise statedThis paper presents independent research funded by the National Institute for Health Research (NIHR) under the Programme Grants for Applied Research programme (RP-PG-1209-10038).

    Unexplored olive cultivars from the Valencian Community (Spain): some chemical characteristics as a valorization strategy

    Get PDF
    [EN] The olive processing industry has till date been dominated by a small group of cultivars, leading to the possibility of some olive cultivars becoming extinct in the near future. In this study, we determined the composition of some chemical components in the olive oils from 31 minor olive cultivars of the Valencian Community. Our main aim was to identify suitable cultivars, which could produce differentiated olive oils, thus aiming towards their valorization. The average oil content of minor olive cultivars was found to be good, with some of them reporting approximately 60% (dry basis). On average, the total phenolic content was 229mg kg(-1), with cv. Mas Blanc reporting the highest content (570mg kg(-1)). Among the various tocopherols found in olives, -tocopherol was the main constituent, with a maximum concentration of 290.6mg kg(-1). Linoleic acid was the main polyunsaturated fatty acid and varied between 3.4% (cv. Del Pomet) and 16.9% (cv. Blanqueta Enguera). Special attention needs to be paid to the composition of sterols, since some olive oils exceeded the limits established for some sterols by the current European legislation. Some of the cultivars studied were highly productive, and originated differentiated olive oils with a rich composition of antioxidants and essential fatty acids. In some cases, these beneficial compounds were higher than those of commercial oils obtained from the most common cultivars worldwide. These results could contribute to the commercial exploitation of some of the studied cultivars.Salazar-García, DC.; Malheiro, R.; Pereira, JA.; López- Cortés, I. (2019). Unexplored olive cultivars from the Valencian Community (Spain): some chemical characteristics as a valorization strategy. European Food Research and Technology. 245(2):325-334. https://doi.org/10.1007/s00217-018-3164-7S3253342452Avidan B, Birger R, Abed-El-Hadi F, Salmon O, Hekster O, Friedman Y, Lavee S (2011) Adopting vigorous olive cultivars to high density hedgerow cultivation by soil applications of uniconazole, a gibberellin synthesis inhibitor. Span J Agric Res 9:821–830Barranco D, Rallo L (2000) Olive cultivars in Spain. HortTechnology 10:107–110Navero DB (2000) World catalogue of olive varieties. International Olive Oil Council, MadridBorges TH, Pereira JA, Cabrera-Vique C, Lara L, Oliveira AF, Seiquer I (2017) Characterization of Arbequina virgin olive oils produced in different regions of Brazil and Spain: physicochemical properties, oxidative stability and fatty acid profile. Food Chem 215:454–462Laroussi-Mezghani S, Le Dréau Y, Molinet J, Hammami M, Grati-Kamoun N, Artaud J (2016) Biodiversity of Tunisian virgin olive oils: varietal origin classification according to their minor compounds. Eur Food Res Technol 242:1087–1099Kosma I, Vavoura M, Kontakos S, Karabagias I, Kontominas M, Apostolos K, Badeka A (2016) Characterization and classification of extra virgin olive oil from five less well-known Greek olive cultivars. J Am Oil Chem Soc 93:837–848Reboredo-Rodríguez P, González-Barreiro C, Cancho-Grande B, Valli E, Bendini A, Toschi TG, Simal-Gandara J (2016) Characterization of virgin olive oils produced with autochthonous Galician varieties. Food Chem 212:162–171Kyçyk O, Aguillera MP, Gaforio JJ, Jiménez A, Beltrán G (2016) Sterol composition of virgin olive oil of forty-three olive cultivars from the World Collection Olive Germplasm Bank of Cordoba. J Sci Food Agric 96:4143–4150Ruiz-Domínguez ML, Raigón MD, Prohens J (2013) Diversity for olive oil composition in a collection of varieties from the region of Valencia (Spain). Food Res Int 54:1941–1949Mateos R, Dominguez MM, Espartero JL, Cert A (2003) Antioxidant effect of phenolic compounds, α-tocopherol, and other minor components in virgin olive oil. J Agric Food Chem 51:7170–7175Hermoso M, Uceda M, García A, Morales B, Frias ML, Fernández A (1991) Elaboración de Aceite de Calidad. Consejeria de Agricultura y Pesca, SevillaMalheiro R, Rodrigues N, Bissaro C, Leimann F, Casal S, Ramalhosa E, Pereira JA (2017) Improvement of sensorial and volatile profiles of olive oil by addition of olive leaves. Eur J Lipid Sci Technol 119:1700177Commission Delegated Regulation (EU) 2016/2095 amending Regulation (EEC) No 2568/91 on the characteristics of olive oil and olive-residue oil and on the relevant methods of analysis. Off J Eur Union L:326Slover HT, Thompson RH, Merola GV (1983) Tocopherol and sterol determination by capillary gas chromatography. J Am Oil Chem Soc 60:1524–1528Sousa A, Casal S, Malheiro R, Lamas H, Bento A, Pereira JA (2015) Aromatized olive oil: Influence of flavouring in quality, composition, stability, antioxidants, and antiradical potential. LWT Food Sci Technol 60:22–28Limón P, Malheiro R, Casal S, Acién-Fernández FG, Fernández-Sevilla JM, Rodrigues N, Cruz R, Bermejo R, Pereira JA (2015) Improvement of stability and carotenoids fraction of virgin olive oil by addition of microalgae Scenedesmus almeriensis extracts. Food Chem 175:203–211Motilva MJ, Tovar MJ, Romero MP, Alegre S, Girona J (2000) Influence of regulated deficit irrigation strategies applied to olive trees (Arbequina cultivar) on oil yield and oil composition during the fruit ripening period. J Sci Food Agric 80:2037–2043Palese AM, Nuzzo V, Favati F, Pietrafesa A, Celano G, Xiloyannis C (2010) Effects of water deficit on the vegetative response, yield and oil quality of olive trees (Olive europaea L., cv Coratina) grown under intensive cultivation. Sci Hortic 125:222–229Allalout A, Krichèn D, Methenni K, Taamalli A, Oueslati I, Daoud D, Zarrouk M (2009) Characterization of virgin olive oil from Super Intensive Spanish and Greek varieties grown in northern Tunisia. Sci Hortic 120:77–83Simopoulos AP, DiNicolantonio JJ (2016) The importance of a balanced ω-6 to ω-3 ratio in the prevention and management of obesity. Open Heart 3:e000385Marongui B, Özcan MM, Rosa A, Dessi MA, Piras A, AlJuhaimi F (2015) Monitoring of the fatty acid compositions of some olive oils. Riv Ital Sostanze Grasse 92:39–42Paiva-Martins F, Kiritsakis A (2017) Olive fruit and olive oil composition and their functionalcompounds. In: Kiritsakis A, Shahidi F (eds) Olives and olive oil as functional foods. Bioactivity, chemistry and processing. Wiley, Hoboken, pp 81–116Shahzad N, Khan W, Shadab MD, Ali A, Saluja SS, Sharma S, Al-Allaf FA, Abduljaleel Z, Ibrahim IAA (2017) Phytosterols as a natural anticancer agent: current status and future perspective. Biomed Pharmacol 88:786–794Covas MI, Ruiz-Gutiérrez V, de la Torre R, Kafatos A, Lamuela-Raventós RM, Osada J, Owen RW, Visioli F (2006) Minor components of olive oil: evidence to date of health benefits in humans. Nutr Rev 64:S20–S30Pirodi M, Albini A, Fabiani R, Giovannelli L, Luceri C, Natella F, Rosignoli P, Rossi T, Taticchi A, Servili M, Galli F (2017) Nutrigenomics of extra-virgin olive oil: a review. Biofactors 43:17–41Franco MN, Galeano-Díaz T, Sánchez J, De Miguel C, Martín-Vertedor D (2014) Total phenolic compounds and tocopherols profiles of seven olive oil varieties grown in the South-West of Spain. J Oleo Sci 63:115–125Aparicio R, Roda L, Albi MA, Gutiérrez F (1999) Effect of various compounds on virgin olive oil stability measured by Rancimat. J Agric Food Chem 47:4150–4155Bullota S, Celano M, Lepore SM, Montalcini T, Pujia A, Russo D (2014) Beneficial effects of the olive oil phenolic components oleuropein and hydroxytyrosol: focus on protection against cardiovascular and metabolic diseases. J Transl Med 12:1–9Krychene D, Salvador MD, Fregapane G (2015) Stability of virgin olive oil phenolic compounds during long-term storage (18 months) at temperatures of 5–50 °C. J Agric Food Chem 63:6779–6786Aparicio-Ruiz R, García-González DL, Oliver-Pozo C, Tena N, Morales MT, Aparicio A (2016) Phenolic profile of virgin olive oils with and without sensory defects: oils with non-oxidative defects exhibit a considerable concentration of phenols. Eur J Lipid Sci Technol 118:299–307Yorulmaz A, Poyrazoğlu ES, Özcan MM, Tekin A (2012) Phenolic profiles of Turkish olives and olive oils. Eur J Lipid Sci Technol 14:1083–1093Arslan A, Özcan MM (2011) Phenolic profile and antioxidant activity of olive fruits of the Turkish variety “Sarıulak” from different locations. Grasas Aceites 64:453–461Dağdelen A, Tümen G, Özcan MM, Dündar E (2013) Phenolics profiles of olive fruits (Olea europaea L.) and oils from Ayvalık, Domat and Gemlik varieties at different ripening stages. Food Chem 136:41–45Malheiro R, Rodrigues N, Pereira JA (2015). In: Boskou D (ed) Olive and olive oil bioactive constituents. AOCS Press, UrbanaCriado MN, Morelló JR, Motilva MJ, Romero MP (2004) Effect of growing area on pigment and phenolic fractions of virgin olive oils of the Arbequina variety in Spain. J Am Oil Chem Soc 81:633–640Gómez-Rico A, Fregapane G, Salvador MD (2008) Effect of cultivar and ripening on minor components in Spanish olive fruits and their corresponding virgin olive oils. Food Res Int 41:433–440Parkinson L, Cicerale S (2016) The health benefiting mechanisms of virgin olive oil phenolic compounds. Molecules 21:1734Lerma-García MJ, Herrero-Martínez JM, Ramis-Ramos G, Simó-Alfonso EF (2008) Prediction of the genetic variety of Spanish extra virgin olive oils using fatty acid and phenolic compound profiles established by direct infusion mass spectrometry. Food Chem 108:1142–1148Luna G, Morales MT, Aparicio R (2006) Characterisation of 39 varietal virgin olive oils by their volatile compositions. Food Chem 98:243–252Arslan A, Özcan MM (2011) Influence of growing area and harvest date on the organic acid composition of olive fruits from Gemlik variety. Sci Hortic 130:633–64

    Structured cost analysis of robotic TME resection for rectal cancer:a comparison between the da Vinci Si and Xi in a single surgeon's experience

    Get PDF
    Background: Robotic-assisted surgery by the da Vinci Si appears to benefit rectal cancer surgery in selected patients, but still has some limitations, one of which is its high costs. Preliminary studies have indicated that the use of the new da Vinci Xi provides some added advantages, but their impact on cost is unknown. The aim of the present study is to compare surgical outcomes and costs of rectal cancer resection by the two platforms, in a single surgeon’s experience. Methods: From April 2010 to April 2017, 90 robotic rectal resections were performed, with either the da Vinci Si (Si-RobTME) or the da Vinci Xi (Xi-RobTME). Based on CUSUM analysis, two comparable groups of 40 consecutive Si-RobTME and 40 consecutive Xi-RobTME were obtained from the prospectively collected database and used for the present retrospective comparative study. Data costs were analysed based on the level of experience on the proficiency–gain curve (p–g curve) by the surgeon with each platform. Results: In both groups, two homogeneous phases of the p–g curve were identified: Si1 and Xi1: cases 1–19, Si2 and Xi2: cases 20–40. A significantly higher number of full RAS operations were achieved in the Xi-RobTME group (p < 0.001). A statistically significant reduction in operating time (OT) during Si2 and Xi2 phase was observed (p < 0.001), accompanied by reduced overall variable costs (OVC), personnel costs (PC) and consumable costs (CC) (p < 0.001). All costs were lower in the Xi2 phase compared to Si2 phase: OT 265 versus 290 min (p = 0.052); OVC 7983 versus 10231.9 (p = 0.009); PC 1151.6 versus 1260.2 (p = 0.052), CC 3464.4 versus 3869.7 (p < 0.001). Conclusions: Our experience confirms a significant reduction of costs with increasing surgeon’s experience with both platforms. However, the economic gain was higher with the Xi with shorter OT, reduced PC and CC, in addition to a significantly larger number of cases performed by the fully robotic approach

    Compliance with herpes zoster vaccination in young and adult individuals in two regions of Italy

    Get PDF
    Background: The purpose of this work was to explore the knowledge and acceptance of Varicella Zoster Virus (VZV)- Herpes Zoster (HZ) vaccination in the general Italian population, where the HZ vaccine has not yet been distributed, using a prevalence study of subjects from two regions in Italy. Methods: A group of 3,173 individuals were interviewed using a questionnaire. The youngest age group (≤ 20 year) was composed of students interviewed at university. The middle age group (21-40 years) and the older age group (≥ 41 years) were interviewed by general practitioners in their office. Results: In both regions, the majority of subjects had been infected with varicella, and only 165 (5.2%) subjects reported receiving the VZV vaccination. Regarding HZ, 2,749 (86.6%) individuals stated that they knew of the virus and 2,233 (70%) were willing to be vaccinated against HZ. The majority of people willing to be vaccinated were in the middle and older age groups (36.6% and 44.7%, respectively). Conclusion: Compliance versus vaccination results were satisfactory and probably, with the upcoming availability of the HZ vaccine in Italy, adults will be favourably disposed towards vaccination

    Inoculations with Arbuscular Mycorrhizal Fungi Increase Vegetable Yields and Decrease Phoxim Concentrations in Carrot and Green Onion and Their Soils

    Get PDF
    Background As one of the most widely used organophosphate insecticides in vegetable production, phoxim (C12H15N2O3PS) is often found as residues in crops and soils and thus poses a potential threat to public health and environment. Arbuscular mycorrhizal (AM) fungi may make a contribution to the decrease of organophosphate residues in crops and/or the degradation in soils, but such effects remain unknown. Methodology/Principal Findings A greenhouse pot experiment studied the influence of AM fungi and phoxim application on the growth of carrot and green onion, and phoxim concentrations in the two vegetables and their soil media. Treatments included three AM fungal inoculations with Glomus intraradices BEG 141, G. mosseae BEG 167, and a nonmycorrhizal control, and four phoxim application rates (0, 200, 400, 800 mg l−1, while 400 mg l−1 rate is the recommended dose in the vegetable production system). Carrot and green onion were grown in a greenhouse for 130 d and 150 d. Phoxim solution (100 ml) was poured into each pot around the roots 14d before plant harvest. Results showed that mycorrhizal colonization was higher than 70%, and phoxim application inhibited AM colonization on carrot but not on green onion. Compared with the nonmycorrhizal controls, both shoot and root fresh weights of these two vegetables were significantly increased by AM inoculations irrespective of phoxim application rates. Phoxim concentrations in shoots, roots and soils were increased with the increase of phoxim application rate, but significantly decreased by the AM inoculations. Soil phosphatase activity was enhanced by both AM inocula, but not affected by phoxim application rate. In general, G. intraradices BEG 141 had more pronounced effects than G. mosseae BEG 167 on the increase of fresh weight production in both carrot and green onion, and the decrease of phoxim concentrations in plants and soils. Conclusions/Significance Our results indicate a promising potential of AM fungi for enhancing vegetable production and reducing organophosphorus pesticide residues in plant tissues and their growth media, as well as for the phytoremediation of organophosphorus pesticide-contaminated soils
    corecore