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1.
Arch Orthop Trauma Surg ; 144(6): 2745-2752, 2024 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-38795185

RESUMO

PURPOSE: Arthroscopic reconstruction techniques for higher-grade posterolateral corner (PLC) injuries (Fanelli Type B, PoLIS LI-B) have not yet been validated in clinical studies. The open reconstruction technique described by Arciero is well-established and showed good restoration of joint stability in previous studies. This study aimed to compare clinical outcomes of this established open surgery technique to a newly developed arthroscopic technique in a prospective randomized clinical trial. METHODS: Between 2019 and 2021, this study focused on chronic high-grade PLC injuries (Fanelli Type B, PoLIS LI-B). Group A consisted of patients treated with conventional open surgery following Arciero's technique, while Group B included patients treated with Arciero's arthroscopic technique. All cases underwent additional PCL reconstruction. After a minimum 12-month follow-up, clinical scores and objective stability assessments were compared between the groups. RESULTS: In total, 26 (group A 12, group B 14) eligible patients with a mean follow-up of 14.9 ± 7.2 months were evaluated in the present study. Knee stability and patient-reported outcome scores (PROMS) were significantly improved when comparing pre- and post-operative values (p < 0.0001). No clinically relevant differences in PROMS (Lysholm: A 83.9 ± 11.4 vs. B 85.3 ± 13.8; IKDC: A 76.91 ± 12.6 vs. B 76.8 ± 15.7) were shown in both groups. Additionally, no statistically significant differences were detected between groups with respect to external rotation, range of motion and instrumental stability testing. Arthroscopic reconstruction showed significantly shorter operation time (p = 0.0109). There were no clinical failures or neurovascular complications of the surgical procedures. CONCLUSION: Both surgical techniques for isolated chronic PLC Fanelli Type B injuries significantly improved the knee stability, were equivalent with respect to PROMs and led to good clinical results. However, arthroscopic PLC reconstruction was associated with a shorter surgery time compared to open PLC reconstruction. Therefore, arthroscopic PLC reconstruction may be a viable option in the hands of an experienced surgeon. LEVEL OF EVIDENCE: Prospective cohort study, II.


Assuntos
Artroscopia , Humanos , Artroscopia/métodos , Estudos Prospectivos , Masculino , Feminino , Adulto , Seguimentos , Pessoa de Meia-Idade , Traumatismos do Joelho/cirurgia , Resultado do Tratamento , Medidas de Resultados Relatados pelo Paciente , Reconstrução do Ligamento Cruzado Posterior/métodos , Articulação do Joelho/cirurgia
2.
Opt Express ; 30(5): 7612-7624, 2022 Feb 28.
Artigo em Inglês | MEDLINE | ID: mdl-35299519

RESUMO

We report a design methodology for creating high-performance photonic crystals with arbitrary geometric shapes. This design approach enables the inclusion of subwavelength shapes into the photonic crystal unit cell, synergistically combining metamaterials concepts with on-chip guided-wave photonics. Accordingly, we use the term "photonic metacrystal" to describe this class of photonic structures. Photonic metacrystals exploiting three different design freedoms are demonstrated experimentally. With these additional degrees of freedom in the design space, photonic metacrystals enable added control of light-matter interactions and hold the promise of significantly increasing temporal confinement in all-dielectric metamaterials.

3.
J Endocrinol Invest ; 44(12): 2699-2708, 2021 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-33970434

RESUMO

PURPOSE: Thyroid ultrasound is a key tool in the evaluation of the thyroid, but billions of people around the world lack access to ultrasound imaging. In this study, we tested an asynchronous telediagnostic ultrasound system operated by individuals without prior ultrasound training which may be used to effectively evaluate the thyroid and improve access to imaging worldwide. METHODS: The telediagnostic system in this study utilizes volume sweep imaging (VSI), an imaging technique in which the operator scans the target region with simple sweeps of the ultrasound probe based on external body landmarks. Sweeps are recorded and saved as video clips for later interpretation by an expert. Two operators without prior ultrasound experience underwent 8 h of training on the thyroid VSI protocol and the operation of the telemedicine platform. After training, the operators scanned patients at a health center in Lima. Telediagnostic examinations were sent to the United States for remote interpretation. Standard of care thyroid ultrasound was performed by an experienced radiologist at the time of VSI examination to serve as a reference standard. RESULTS: Novice operators scanned 121 subjects with the thyroid VSI protocol. Of these exams, 88% were rated of excellent image quality showing complete or near complete thyroid visualization. There was 98.3% agreement on thyroid nodule presence between VSI teleultrasound and standard of care ultrasound (Cohen's kappa 0.91, P < 0.0001). VSI measured the thyroid size, on average, within 5 mm compared to standard of care. Readers of VSI were also able to effectively characterize thyroid nodules, and there was no significant difference in measurement of thyroid nodule size (P = 0.74) between VSI and standard of care. CONCLUSION: Thyroid VSI telediagnostic ultrasound demonstrated both excellent visualization of the thyroid gland and agreement with standard of care thyroid ultrasound for nodules and thyroid size evaluation. This system could be deployed for evaluation of palpable thyroid abnormalities, nodule follow-up, and epidemiological studies to promote global health and improve the availability of diagnostic imaging in underserved communities.


Assuntos
Acessibilidade aos Serviços de Saúde , Telemedicina , Glândula Tireoide/diagnóstico por imagem , Nódulo da Glândula Tireoide , Ultrassonografia , Adulto , Feminino , Saúde Global/tendências , Acessibilidade aos Serviços de Saúde/organização & administração , Acessibilidade aos Serviços de Saúde/normas , Acessibilidade aos Serviços de Saúde/tendências , Humanos , Masculino , Área Carente de Assistência Médica , Peru/epidemiologia , Melhoria de Qualidade , População Rural , Padrão de Cuidado , Telemedicina/métodos , Telemedicina/organização & administração , Nódulo da Glândula Tireoide/diagnóstico , Nódulo da Glândula Tireoide/epidemiologia , Ultrassonografia/métodos , Ultrassonografia/normas
4.
J Med Syst ; 45(11): 99, 2021 Oct 09.
Artigo em Inglês | MEDLINE | ID: mdl-34628540

RESUMO

The use of smartphone apps is an essential part of everyday life. Mobile applications offer enormous opportunities for dealing with challenges in public health, and their number increases every day. This paper aims to review the existing literature on mobile applications in orthopaedic oncology and to summarize the current mobile applications for musculoskeletal tumors. A systematic literature review was conducted regarding articles on mobile applications in orthopaedic and trauma surgery. The focus was on identifying mobile applications that can be used in the treatment of patients with musculoskeletal tumors. Two reviewers independently assessed study eligibility, extracted data, and appraised methodological quality. In addition, the Apple App Store and Google Play Store were searched for suitable mobile applications. Ninety-one articles describing a mobile application in orthopaedic and trauma surgery were identified. Three articles focused on a mobile application for musculoskeletal tumors. Additionally, seven mobile applications were available in the App/Play Stores dealing with bone or soft tissue tumors in orthopaedic oncology without corresponding scientific articles. Increasing numbers of mobile applications are being developed in orthopaedic and trauma surgery. Currently, only three scientific articles on mobile applications in orthopaedic oncology are present, yet several more applications are available without scientific medical evaluation. Since mobile applications can facilitate the everyday life of orthopaedic and trauma surgeons, it is worthwhile to be aware of new developments in this field. A regular scientific evaluation of the subject is important in order to classify the significance of these applications.


Assuntos
Aplicativos Móveis , Neoplasias , Ortopedia , Telemedicina , Humanos , Oncologia , Neoplasias/diagnóstico , Neoplasias/terapia
5.
Br J Dermatol ; 183(6): 1037-1048, 2020 12.
Artigo em Inglês | MEDLINE | ID: mdl-32286683

RESUMO

BACKGROUND: Brodalumab is efficacious for the treatment of moderate-to-severe plaque psoriasis through 52 weeks. OBJECTIVES: To evaluate the efficacy and safety of brodalumab through 120 weeks, including following withdrawal and retreatment. METHODS: At baseline, patients were randomized to brodalumab (n = 222) or placebo (n = 220). At week 12, patients achieving a static Physician's Global Assessment (sPGA) score of 0 or 1 (sPGA 0/1) with brodalumab were rerandomized to brodalumab (n = 83) or placebo (n = 84; later re-treated with brodalumab if sPGA ≥ 3 occurred), and patients receiving placebo switched to brodalumab (n = 208). Safety was assessed by exposure-adjusted rates of treatment-emergent adverse events. RESULTS: Among those who achieved sPGA 0/1 at week 12 and were rerandomized to brodalumab, 96% and 80% using observed data, respectively, and 74% and 61% using nonresponder imputation, respectively, achieved 75% improvement in Psoriasis Area and Severity Index (PASI 75) and PASI 100 at week 120. Following withdrawal from brodalumab, return of disease occurred after a mean ± SD duration of 74·7 ± 50·5 days. Among those who switched from brodalumab to placebo at week 12, PASI 75 rates using observed data and nonresponder imputation were 55% and 51% at week 20, respectively and 94% and 75% at week 120, respectively; PASI 100 rates at week 120 were 75% and 60%, respectively. Efficacy was maintained through week 120 in those receiving brodalumab after placebo. No new safety signals were observed. CONCLUSIONS: These findings indicate that brodalumab is efficacious and safe for continuous long-term treatment of psoriasis, and support the potential for response after discontinuation and retreatment.


Assuntos
Anticorpos Monoclonais , Psoríase , Anticorpos Monoclonais/efeitos adversos , Anticorpos Monoclonais Humanizados , Método Duplo-Cego , Humanos , Psoríase/tratamento farmacológico , Índice de Gravidade de Doença , Resultado do Tratamento
6.
AIDS Care ; 32(10): 1229-1237, 2020 10.
Artigo em Inglês | MEDLINE | ID: mdl-32539456

RESUMO

Mental well-being can contribute to cigarette smoking and negatively impact disease progression among people living with HIV (PLWH). This study examined potential associations between cocaine use (COC), depression, and HIV status in predicting cigarette smoking; hypothesizing that depression would be highest in cocaine users and predict cigarette smoking. An exploratory analysis including stress was also examined as a potential predictor of cigarette use. More than half of the sample (65%) endorsed smoking at some point in the past, and 52% endorsed being current smokers at the time of the study. Smokers were most likely to be cocaine users (87.1%), cocaine using PLWH (74.3%), or PLWH (36.6%). Neither HIV status (χ2(1) = 1.5, p = .221), perceived stress (χ2(1) = 0.75 p = .386), nor depressive symptomatology (χ2(1) = 1.2, p = .274) were related to smoking. Non-cocaine users were approximately 95.4% less likely to smoke than cocaine users, controlling for all other variables. Overall, cocaine use was the greatest predictor of cigarette smoking and quantity of cigarettes smoked. Perceived stress and depression were not associated with cigarette smoking in the sample. Future interventions targeting cigarette use should include a cocaine-related component to encourage smoking cessation among this high-risk group.


Assuntos
Fumar Cigarros , Cocaína , Depressão/epidemiologia , Infecções por HIV , Feminino , Infecções por HIV/epidemiologia , Humanos , Masculino , Fumaça , Estresse Psicológico , Transtornos Relacionados ao Uso de Substâncias
7.
Methods ; 169: 21-45, 2019 10 01.
Artigo em Inglês | MEDLINE | ID: mdl-31356875

RESUMO

Single-molecule Förster resonance energy transfer (smFRET) is a powerful technique for nanometer-scale studies of single molecules. Solution-based smFRET, in particular, can be used to study equilibrium intra- and intermolecular conformations, binding/unbinding events and conformational changes under biologically relevant conditions without ensemble averaging. However, single-spot smFRET measurements in solution are slow. Here, we detail a high-throughput smFRET approach that extends the traditional single-spot confocal geometry to a multispot one. The excitation spots are optically conjugated to two custom silicon single photon avalanche diode (SPAD) arrays. Two-color excitation is implemented using a periodic acceptor excitation (PAX), allowing distinguishing between singly- and doubly-labeled molecules. We demonstrate the ability of this setup to rapidly and accurately determine FRET efficiencies and population stoichiometries by pooling the data collected independently from the multiple spots. We also show how the high throughput of this approach can be used o increase the temporal resolution of single-molecule FRET population characterization from minutes to seconds. Combined with microfluidics, this high-throughput approach will enable simple real-time kinetic studies as well as powerful molecular screening applications.


Assuntos
DNA/química , Transferência Ressonante de Energia de Fluorescência/métodos , Imagem Individual de Molécula/métodos , Simulação por Computador , RNA Polimerases Dirigidas por DNA/química , Difusão , Ensaios de Triagem em Larga Escala/métodos , Cinética , Lasers Semicondutores , Microfluídica/métodos , Conformação Molecular , Fótons , Iniciação da Transcrição Genética
8.
J Clin Densitom ; 23(4): 604-610, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-30425007

RESUMO

The loss of bone and muscle mass increases the risk of osteoporotic fractures. Dual energy X-ray absorptiometry (DXA) loses sensitivity in older age. The purpose of this study was to evaluate bone and muscle measurements of peripheral quantitative computed tomography (pQCT) in a geriatric cohort with osteoporosis. Bone mineral density and muscle area of 168 patients aged 65 years and older (76.3 ± 6.5) were measured with pQCT at distal forearm additionally to an osteoporosis assessment consisting of anamnesis, blood test and DXA of lumbar spine and hip. Prior fractures were categorized in minor and major osteoporotic fractures. Logistic regression was used to show the association of bone mineral density and muscle area with major fractures. 54.8% of the participants had at least one major fracture. Bone mineral density measured with pQCT and muscle area were significantly associated with these fractures (total and trabecular bone mineral density OR 2.243 and 2.195, p < 0.01; muscle area OR 2.378, p < 0.05), whereas DXA bone mineral density showed no significant association. These associations remained after adjustment for age, sex, BMI, physical activity and other factors. In all models for patients >75 years only muscle area was significantly associated (OR 5.354, p < 0.05) with major fractures. Measurement of bone mineral density and muscle area with pQCT seems to have advantage over DXA in fracture association in geriatric patients. Measuring muscle area also adds useful information to estimate the presence of osteosarcopenia.


Assuntos
Músculo Esquelético/diagnóstico por imagem , Rádio (Anatomia)/diagnóstico por imagem , Absorciometria de Fóton , Idoso , Idoso de 80 Anos ou mais , Densidade Óssea , Osso Esponjoso/anatomia & histologia , Osso Esponjoso/diagnóstico por imagem , Feminino , Humanos , Vértebras Lombares/diagnóstico por imagem , Vértebras Lombares/patologia , Masculino , Músculo Esquelético/patologia , Osteoporose/diagnóstico por imagem , Osteoporose/patologia , Fraturas por Osteoporose/diagnóstico por imagem , Fraturas por Osteoporose/patologia , Ossos Pélvicos/diagnóstico por imagem , Ossos Pélvicos/patologia , Rádio (Anatomia)/patologia , Tomografia Computadorizada por Raios X/métodos
9.
Public Health ; 180: 64-73, 2020 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-31855621

RESUMO

OBJECTIVES: The aim of the study was to examine self-rated health (SRH) of Middle Eastern immigrants in the US compared with US-born non-Hispanic whites and to examine factors associated with fair/poor SRH among Middle Eastern immigrants in the US. STUDY DESIGN: We used a cross-sectional design to analyze the National Health Interview Survey from 2001 to 2015. METHODS: Secondary survey analysis procedures were conducted using the SAS program, with a total of 3,966 Middle Eastern and 731,285 US-born non-Hispanic whites. Descriptive statistics and regression analyses were used. RESULTS: Middle Eastern immigrants had significantly higher rates of fair/poor SRH than US-born whites across the three survey waves. Reporting symptoms of serious psychological distress, older age (60+ years), current alcohol-drinking status, and having a family member with disability were the factors associated significantly with higher odds of reporting fair/poor SRH in Middle Eastern immigrants, whereas education was a protecting factor of fair/poor SRH. CONCLUSIONS: This study indicates that Middle Eastern immigrants are one of the US immigrant populations that report poor health status, which reveals the need for health policy attention to reduce health disparities.


Assuntos
Autoavaliação Diagnóstica , Emigrantes e Imigrantes/psicologia , Emigrantes e Imigrantes/estatística & dados numéricos , Adolescente , Adulto , Estudos Transversais , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Oriente Médio/etnologia , Estados Unidos , Adulto Jovem
10.
N Engl J Med ; 374(19): 1842-1852, 2016 May 12.
Artigo em Inglês | MEDLINE | ID: mdl-27168434

RESUMO

BACKGROUND: Tracking longitudinal measurements of growth and decline in lung function in patients with persistent childhood asthma may reveal links between asthma and subsequent chronic airflow obstruction. METHODS: We classified children with asthma according to four characteristic patterns of lung-function growth and decline on the basis of graphs showing forced expiratory volume in 1 second (FEV1), representing spirometric measurements performed from childhood into adulthood. Risk factors associated with abnormal patterns were also examined. To define normal values, we used FEV1 values from participants in the National Health and Nutrition Examination Survey who did not have asthma. RESULTS: Of the 684 study participants, 170 (25%) had a normal pattern of lung-function growth without early decline, and 514 (75%) had abnormal patterns: 176 (26%) had reduced growth and an early decline, 160 (23%) had reduced growth only, and 178 (26%) had normal growth and an early decline. Lower baseline values for FEV1, smaller bronchodilator response, airway hyperresponsiveness at baseline, and male sex were associated with reduced growth (P<0.001 for all comparisons). At the last spirometric measurement (mean [±SD] age, 26.0±1.8 years), 73 participants (11%) met Global Initiative for Chronic Obstructive Lung Disease spirometric criteria for lung-function impairment that was consistent with chronic obstructive pulmonary disease (COPD); these participants were more likely to have a reduced pattern of growth than a normal pattern (18% vs. 3%, P<0.001). CONCLUSIONS: Childhood impairment of lung function and male sex were the most significant predictors of abnormal longitudinal patterns of lung-function growth and decline. Children with persistent asthma and reduced growth of lung function are at increased risk for fixed airflow obstruction and possibly COPD in early adulthood. (Funded by the Parker B. Francis Foundation and others; ClinicalTrials.gov number, NCT00000575.).


Assuntos
Anti-Inflamatórios/uso terapêutico , Asma/fisiopatologia , Pulmão/fisiologia , Administração por Inalação , Adolescente , Asma/tratamento farmacológico , Broncodilatadores/uso terapêutico , Budesonida/uso terapêutico , Criança , Pré-Escolar , Feminino , Volume Expiratório Forçado , Humanos , Estimativa de Kaplan-Meier , Estudos Longitudinais , Pulmão/crescimento & desenvolvimento , Masculino , Nedocromil/uso terapêutico , Fatores de Risco , Fatores Sexuais , Espirometria , Adulto Jovem
11.
Colorectal Dis ; 21(8): 894-902, 2019 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-30955236

RESUMO

AIM: The transanal approach to total mesorectal excision (TaTME) as an alternative to conventional anterior resection offers an improved view to otherwise restricted anatomical regions in obese and narrow male pelves and unfavourable tumour locations. Guidelines for the management of anastomotic leakage (AL) following low rectal resections are scarce. PATIENTS AND METHODS: Prospectively collected data of all consecutive patients undergoing TaTME between December 2014 and April 2017 in our centre were analysed retrospectively. Existing classification systems for AL were modified with regard to transanal anastomotic-preserving management. RESULTS: TaTME was performed in 66 patients with a median age of 56.2 years. The overall incidence of AL was 12.1% (n = 8). AL grading was differentiated in Grades I to V according to the severity of necrosis and abscess development. Two patients suffered from AL Grade II, one patient from Grade III, three patients from Grade IV and two patients from Grade V. Preservation of the anastomosis following AL was achieved by the damage control concept in six of eight patients (75%) with a median duration of hospital stay of 36 days. Two patients received a Hartmann procedure (Grades IV and V). CONCLUSION: Our study demonstrates that management of AL following TaTME is challenging but definitely amenable to strategies aimed at preserving the anastomosis by appropriate damage control. The modified classification system might serve as guidance for anastomosis-preserving management.


Assuntos
Fístula Anastomótica/classificação , Protectomia/efeitos adversos , Reto/cirurgia , Índice de Gravidade de Doença , Cirurgia Endoscópica Transanal/efeitos adversos , Adulto , Idoso , Idoso de 80 Anos ou mais , Anastomose Cirúrgica/efeitos adversos , Fístula Anastomótica/etiologia , Fístula Anastomótica/terapia , Feminino , Humanos , Incidência , Tempo de Internação , Masculino , Pessoa de Meia-Idade , Estudos Prospectivos , Neoplasias Retais/cirurgia , Estudos Retrospectivos , Terapia de Salvação/estatística & dados numéricos
12.
Clin Exp Immunol ; 193(2): 207-220, 2018 08.
Artigo em Inglês | MEDLINE | ID: mdl-29645082

RESUMO

Paediatric asthma exacerbations are often caused by rhinovirus (RV). Moreover, 25(OH)-vitamin D3 (VitD3) deficiency during infancy was found associated with asthma. Here, we investigated the innate immune responses to RV and their possible modulation by 25(OH)-VitD3 serum levels in a preschool cohort of children with and without asthma. The innate lymphoid cell type 2 (ILC2)-associated marker, ST2, was found up-regulated in the blood cells of asthmatic children with low serum levels of 25(OH)-VitD3 in the absence of RV in their airways. Furthermore, in blood cells from control and asthmatic children with RV in their airways, soluble (s) ST2 (sST2) protein was found reduced. Asthmatic children with low 25(OH)-VitD3 in serum and with RV in vivo in their airways at the time of the analysis had the lowest sST2 protein levels in the peripheral blood compared to control children without RV and high levels of 25(OH)-VitD3. Amphiregulin (AREG), another ILC2-associated marker, was found induced in the control children with RV in their airways and low serum levels of 25(OH)-VitD3. In conclusion, the anti-inflammatory soluble form of ST2, also known as sST2, in serum correlated directly with interleukin (IL)-33 in the airways of asthmatic children. Furthermore, RV colonization in the airways and low serum levels of 25(OH)-VitD3 were found to be associated with down-regulation of sST2 in serum in paediatric asthma. These data indicate a counter-regulatory role of 25(OH)-VitD3 on RV-induced down-regulation of serum sST2 in paediatric asthma, which is relevant for the therapy of this disease.


Assuntos
Asma/imunologia , Colecalciferol/sangue , Resfriado Comum/imunologia , Proteína 1 Semelhante a Receptor de Interleucina-1/metabolismo , Leucócitos Mononucleares/fisiologia , Sistema Respiratório/metabolismo , Rhinovirus/imunologia , Células Cultivadas , Criança , Pré-Escolar , Estudos de Coortes , Progressão da Doença , Feminino , Humanos , Imunidade Inata , Proteína 1 Semelhante a Receptor de Interleucina-1/genética , Interleucina-33/metabolismo , Leucócitos Mononucleares/virologia , Masculino , Regulação para Cima
13.
Clin Exp Allergy ; 48(10): 1297-1304, 2018 10.
Artigo em Inglês | MEDLINE | ID: mdl-29808611

RESUMO

BACKGROUND: Identifying metabolomic profiles of children with asthma has the potential to increase understanding of asthma pathophysiology. OBJECTIVE: To identify differences in plasma metabolites between children with and without current asthma at mid-childhood. METHODS: We used untargeted mass spectrometry to measure plasma metabolites in 237 children (46 current asthma cases and 191 controls) in Project Viva, a birth cohort from eastern Massachusetts, USA. Current asthma was assessed at mid-childhood (mean age 8.0 years). The ability of a broad spectrum metabolic profile to distinguish between cases and controls was assessed using partial least squares discriminant analysis. We used logistic regression models to identify individual metabolites that were differentially abundant by case-control status. We tested significant metabolites for replication in 411 children from the VDAART clinical trial. RESULTS: There was no evidence of a systematic difference in the metabolome of children reporting current asthma vs. healthy controls according to partial least squares discriminant analysis. However, several metabolites were associated with odds of current asthma at a nominally significant threshold (P < .05), including a metabolite of nicotinamide (N1-Methyl-2-pyridone-5-carboxamide (Odds Ratio (OR) = 2.8 (95% CI 1.1-8.0)), a pyrimidine metabolite (5,6-dihydrothymine (OR = 0.4 (95% CI 0.2-0.9)), bile constituents (biliverdin (OR = 0.4 (95%CI 0.1-0.9), taurocholate (OR = 2.0 (95% CI 1.2-3.4)), two peptides likely derived from fibrinopeptide A (ORs from 1.6 to 1.7), and a gut microbiome metabolite (p-cresol sulphate OR = 0.5 (95% CI 0.2-0.9)). The associations for N1-Methyl-2-pyridone-5-carboxamide and p-cresol sulphate replicated in the independent VDAART population (one-sided P values = .03-.04). CONCLUSIONS AND CLINICAL RELEVANCE: Current asthma is nominally associated with altered levels of several metabolites, including metabolites in the nicotinamide pathway, and a bacterial metabolite derived from the gut microbiome.


Assuntos
Asma/sangue , Biomarcadores/sangue , Metaboloma , Metabolômica , Asma/diagnóstico , Asma/imunologia , Estudos de Casos e Controles , Criança , Cromatografia Líquida , Feminino , Humanos , Masculino , Espectrometria de Massas , Metabolômica/métodos , Razão de Chances
14.
AIDS Behav ; 22(9): 2947-2955, 2018 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-29302843

RESUMO

While efforts to prevent mother-to-child transmission of HIV been successful in some districts in South Africa, rates remain unacceptably high in others. This study utilized Bayesian logistic regression to examine maternal-level predictors of adherence to infant nevirapine prophylaxis, including intimate partner violence, maternal adherence, HIV serostatus disclosure reaction, recency of HIV diagnosis, and depression. Women (N = 303) were assessed during pregnancy and 6 weeks postpartum. Maternal adherence to antiretroviral therapy during pregnancy predicted an 80% reduction in the odds of infant nonadherence [OR 0.20, 95% posterior credible interval (.11, .38)], and maternal prenatal depression predicted an increase [OR 1.04, 95% PCI (1.01, 1.08)]. Results suggest that in rural South Africa, failure to provide medication to infants may arise from shared risk factors with maternal nonadherence. Intervening to increase maternal adherence and reduce depression may improve adherence to infant prophylaxis and ultimately reduce vertical transmission rates.


Assuntos
Fármacos Anti-HIV/uso terapêutico , Depressão Pós-Parto/epidemiologia , Infecções por HIV/prevenção & controle , Transmissão Vertical de Doenças Infecciosas/prevenção & controle , Nevirapina/uso terapêutico , Profilaxia Pós-Exposição/estatística & dados numéricos , Complicações Infecciosas na Gravidez/tratamento farmacológico , Adolescente , Adulto , Teorema de Bayes , Depressão , Revelação , Feminino , Infecções por HIV/tratamento farmacológico , Infecções por HIV/transmissão , Humanos , Lactente , Recém-Nascido , Violência por Parceiro Íntimo/estatística & dados numéricos , Modelos Logísticos , Adesão à Medicação , Gravidez , População Rural , África do Sul/epidemiologia , Fatores de Tempo , Adulto Jovem
15.
Sex Abuse ; 30(7): 781-802, 2018 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-29188755

RESUMO

The presence of pedophilic sexual interests is considered of high importance for predicting recidivism among individuals who have committed sexual offenses. However, objective and valid assessment methods that are robust against confounding issues such as cognitive capacity and manipulation are sparse. We applied the Approach-Avoidance Task (AAT) for detecting sexual interests in 38 pedophilic men (18 primarily attracted to boys) and 27 male nonpedophilic (11 gay) participants. The AAT relies on automatic approach and avoidance tendencies, independent of cognitive abilities such as memory capacity and intelligence. Approach-avoidance tendencies toward stimuli depicting seminude prepubescent boys and girls as well as men and women are reported. The results were consistent with previous research on the utility of the AAT: Except for pedophiles attracted to girls, the mean AAT scores (approach minus avoidance reaction time for each stimulus category) were positive only for stimuli of the preferred category. A multivariate binary logistic regression approach revealed 80% overall accuracy in differentiating pedophilic from nonpedophilic participants.


Assuntos
Atenção/fisiologia , Pedofilia/psicologia , Tempo de Reação/fisiologia , Adulto , Criança , Abuso Sexual na Infância/psicologia , Humanos , Masculino , Pessoa de Meia-Idade , Estimulação Luminosa , Adulto Jovem
16.
Ann Oncol ; 28(10): 2588-2594, 2017 Oct 01.
Artigo em Inglês | MEDLINE | ID: mdl-28961826

RESUMO

BACKGROUND: The absence of a survival benefit for whole brain radiotherapy (WBRT) among randomized trials has been attributed to a competing risk of death from extracranial disease. We re-analyzed EORTC 22952 to assess the impact of WBRT on survival for patients with controlled extracranial disease or favorable prognoses. PATIENTS AND METHODS: We utilized Cox regression, landmark analysis, and the Kaplan-Meier method to evaluate the impact of WBRT on survival accounting for (i) extracranial progression as a time-dependent covariate in all patients and (ii) diagnosis-specific graded prognostic assessment (GPA) score in patients with primary non-small-cell lung cancer (NSCLC). RESULTS: A total of 329 patients treated per-protocol were included for analysis with a median follow up of 26 months. One hundred and fifteen (35%) patients had no extracranial progression; 70 (21%) patients had progression <90 days, 65 (20%) between 90 and 180 days, and 79 (24%) patients >180 days from randomization. There was no difference in the model-based risk of death in the WBRT group before [hazard ratio (HR) (95% CI)=0.70 (0.45-1.11), P = 0.133), or after [HR (95% CI)=1.20 (0.89-1.61), P = 0.214] extracranial progression. Among 177 patients with NSCLC, 175 had data available for GPA calculation. There was no significant survival benefit to WBRT among NSCLC patients with favorable GPA scores [HR (95% CI)=1.10 (0.68-1.79)] or unfavorable GPA scores [HR (95% CI)=1.11 (0.71-1.76)]. CONCLUSIONS: Among patients with limited extracranial disease and one to three brain metastases at enrollment, we found no significant survival benefit to WBRT among NSCLC patients with favorable GPA scores or patients with any histology and controlled extracranial disease status. This exploratory analysis of phase III data supports the practice of omitting WBRT for patients with limited brain metastases undergoing SRS and close surveillance. CLINICAL TRIALS NUMBER: NCT00002899.


Assuntos
Neoplasias Encefálicas/secundário , Neoplasias Encefálicas/terapia , Carcinoma Pulmonar de Células não Pequenas/patologia , Carcinoma Pulmonar de Células não Pequenas/terapia , Neoplasias Pulmonares/patologia , Neoplasias Pulmonares/terapia , Neoplasias Encefálicas/radioterapia , Neoplasias Encefálicas/cirurgia , Carcinoma Pulmonar de Células não Pequenas/radioterapia , Carcinoma Pulmonar de Células não Pequenas/cirurgia , Feminino , Humanos , Estimativa de Kaplan-Meier , Neoplasias Pulmonares/radioterapia , Neoplasias Pulmonares/cirurgia , Masculino , Pessoa de Meia-Idade , Prognóstico , Radiocirurgia , Irradiação Corporal Total
17.
Pharmacogenomics J ; 17(2): 137-145, 2017 03.
Artigo em Inglês | MEDLINE | ID: mdl-26856248

RESUMO

Variation in the expression level and activity of genes involved in drug disposition and action ('pharmacogenes') can affect drug response and toxicity, especially when in tissues of pharmacological importance. Previous studies have relied primarily on microarrays to understand gene expression differences, or have focused on a single tissue or small number of samples. The goal of this study was to use RNA-sequencing (RNA-seq) to determine the expression levels and alternative splicing of 389 Pharmacogenomics Research Network pharmacogenes across four tissues (liver, kidney, heart and adipose) and lymphoblastoid cell lines, which are used widely in pharmacogenomics studies. Analysis of RNA-seq data from 139 different individuals across the 5 tissues (20-45 individuals per tissue type) revealed substantial variation in both expression levels and splicing across samples and tissue types. Comparison with GTEx data yielded a consistent picture. This in-depth exploration also revealed 183 splicing events in pharmacogenes that were previously not annotated. Overall, this study serves as a rich resource for the research community to inform biomarker and drug discovery and use.


Assuntos
Processamento Alternativo , Biologia Computacional , Sequenciamento de Nucleotídeos em Larga Escala , Farmacogenética , Variantes Farmacogenômicos , Análise de Sequência de RNA , Transcriptoma , Tecido Adiposo/metabolismo , Linhagem Celular , Bases de Dados Genéticas , Genótipo , Humanos , Rim/metabolismo , Fígado/metabolismo , Miocárdio/metabolismo , Fenótipo
18.
Allergy ; 72(5): 792-801, 2017 May.
Artigo em Inglês | MEDLINE | ID: mdl-27709636

RESUMO

BACKGROUND: The severity of bronchial hyperresponsiveness (BHR) is a fundamental feature of asthma. The severity of BHR varies between asthmatics and is associated with lack of asthma control. The mechanisms underlying this trait are still unclear. This study aimed to identify genes associated with BHR severity, using a genomewide association study (GWAS) on the slope of BHR in adult asthmatics. METHODS: We performed a GWAS on BHR severity in adult asthmatics from the Dutch Asthma GWAS cohort (n = 650), adjusting for smoking and inhaled corticosteroid use, and verified results in three other cohorts. Furthermore, we performed eQTL and co-expression analyses in lung tissue. RESULTS: In the discovery cohort, one genomewide significant hit located in phosphodiesterase 4D, cAMP-specif (PDE4D) and 26 SNPs with P-values < 1*10-5 were found. None of our findings replicated in adult and childhood replication cohorts jointly. In adult cohorts separately, rs1344110 in pituitary tumour-transforming 1 interacting protein (PTTG1IP) and rs345983 in Mastermind-like 3 (MAML3) replicated nominally; minor alleles of rs345983 and rs1344110 were associated with less severe BHR and higher lung tissue gene expression. PTTG1IP showed significant co-expression with pituitary tumour-transforming 1, the binding factor of PTTG1lP, and with vimentin and E-cadherin1. MAML3 co-expressed significantly with Mastermind-like 2 (MAML2), both involved in Notch signalling. CONCLUSIONS: PTTG1IP and MAML3 are associated with BHR severity in adult asthma. The relevance of these genes is supported by the eQTL analyses and co-expression of PTTG1lP with vimentin and E-cadherin1, and MAML3 with MAML2.


Assuntos
Asma/genética , Hiper-Reatividade Brônquica/genética , Proteínas de Ligação a DNA/genética , Predisposição Genética para Doença , Estudo de Associação Genômica Ampla , Proteínas de Membrana/genética , Proteínas Nucleares/genética , Fatores de Transcrição/genética , Adulto , Asma/diagnóstico , Hiper-Reatividade Brônquica/diagnóstico , Estudos de Coortes , Feminino , Expressão Gênica , Genótipo , Humanos , Peptídeos e Proteínas de Sinalização Intracelular , Masculino , Polimorfismo de Nucleotídeo Único , Locos de Características Quantitativas , Testes de Função Respiratória , Índice de Gravidade de Doença , Transativadores
19.
Eur Arch Otorhinolaryngol ; 274(2): 701-710, 2017 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-27683300

RESUMO

Treating tinnitus with the resources offered in hospitals can become necessary for patients suffering from complex tinnitus if a high symptom severity, usually accompanied by a corresponding psychosomatic comorbidity, is present. For such costly therapies, for example, the neuro-otologic psychosomatic tinnitus therapy (NPT) examined here, the long-term effect is particularly important; however, reliable catamnesis studies for inpatient treatments are not yet available. Data from 169 (from a total of 327 contacted) inpatients suffering from complex tinnitus were analysed here. To assess the tinnitus stress, the Mini-Tinnitus Questionnaire (Mini-TF12-In German language) according to Hiller and Goebel [1], and for the assessment of the anxiety and depression element, the German version of the Hospitality Anxiety and Depression Score (HADS) [2] were analysed at the start of the therapy, at the end of the therapy and at the earliest 1 year (up to 5 years) after discharge from inpatient treatment. The data were correlated with the current hearing status. In addition, the subjectively perceived effect factors of the therapy as well as the therapies continued outside of hospital were queried. On average, the therapy lasted 39.3 days (SD 13.6) = 5.6 weeks, and the mean of the follow-up time was 38.5 months (12-70 months) (SD 18). The therapy focused on daily neuro-otologic counselling, the improvement of the concrete hearing ability, an audio-therapy as well as frequent individual and group psychotherapy based on neuro-otology. 53.8 % of patients experienced relevant hearing loss (according to WHO criteria) which needed to be treated in addition to tinnitus. Both at the end of the therapy and the follow-up consultation, a significant improvement of the tinnitus stress and a continuing significant improvement of the depression and anxiety element could be achieved in the HADS with high effect levels ranging from 1 to 2.5. Patients who did not improve (n = 7) or even deteriorated (n = 2) demonstrated increased hearing impairment, requiring hearing aids. During the therapy, particularly, the neuro-otologic counselling, the psychotherapy, and the audio-therapy were experienced as effective. After discharge from hospital, especially, the progressive muscle relaxation according to Jacobsen was continued, as well as psychotherapy. With the corresponding symptomatic suffering, an inpatient hospitalisation and tinnitus therapy with neuro-otologic and psychosomatic alignment can achieve medium-to-high-grade therapeutic effects. This requires a disorder-specific approach, which also includes the elements of neuro-otologic counselling, psychotherapy as well as audio-therapy, and the possibility of providing hearing aids and an approach which aims at the continuation of the therapies experienced as helpful.


Assuntos
Hospitalização , Zumbido/psicologia , Zumbido/terapia , Adulto , Idoso , Idoso de 80 Anos ou mais , Ansiedade/complicações , Ansiedade/terapia , Aconselhamento , Depressão/complicações , Depressão/terapia , Feminino , Seguimentos , Auxiliares de Audição , Perda Auditiva/etiologia , Perda Auditiva/terapia , Humanos , Masculino , Pessoa de Meia-Idade , Transtornos Psicofisiológicos/terapia , Psicoterapia de Grupo , Terapia de Relaxamento , Zumbido/complicações , Adulto Jovem
20.
Public Health ; 151: 87-97, 2017 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-28759883

RESUMO

The Canadian government decision to cancel the mandatory long-form census in 2010 (subsequently restored in 2015), along with similar discussions in the United Kingdom (UK) and the United States of America (USA), have brought the purpose and use of census data into focus for epidemiologists and public health professionals. Policy decision-makers should be well-versed in the public health importance of accurate and reliable census data for emergency preparedness planning, controlling disease outbreaks, and for addressing health concerns among vulnerable populations including the elderly, low-income, racial/ethnic minorities, and special residential groups (e.g., nursing homes). Valid census information is critical to ensure that policy makers and public health practitioners have the evidence needed to: (1) establish incidence rates, mortality rates, and prevalence for the full characterization of emerging health issues; (2) address disparities in health care, prevention strategies and health outcomes among vulnerable populations; and (3) plan and effectively respond in times of disaster and emergency. At a time when budget and sample size cuts have been implemented in the UK, a voluntary census is being debated in the US. In Canada, elimination of the mandatory long-form census in 2011 resulted in unreliable population enumeration, as well as a substantial waste of money and resources for taxpayers, businesses and communities. The purpose of this article is to provide a brief overview of recent international trends and to review the foundational role of the census in public health management and planning using historical and current examples of environmental contamination, cancer clusters and emerging infections. Citing a general absence of public health applications of the census in cost-benefit analyses, we call on policy makers to consider its application to emergency preparedness, outbreak response, and chronic disease prevention efforts. At the same time, we call on public health professionals to improve published estimates of monetary benefit (via either cost-benefit or cost-effectiveness analysis) to a given public health intervention.


Assuntos
Censos , Saúde Pública , Análise Custo-Benefício , Humanos , Internacionalidade
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