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1.
Prostate ; 84(3): 292-302, 2024 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-37964482

RESUMO

BACKGROUND: Recently approved treatments and updates to genetic testing recommendations for prostate cancer have created a need for correlated analyses of patient outcomes data via germline genetic mutation status. Genetic registries address these gaps by identifying candidates for recently approved targeted treatments, expanding clinical trial data examining specific gene mutations, and understanding effects of targeted treatments in the real-world setting. METHODS: The PROMISE Registry is a 20-year (5-year recruitment, 15-year follow-up), US-wide, prospective genetic registry for prostate cancer patients. Five thousand patients will be screened through an online at-home germline testing to identify and enroll 500 patients with germline mutations, including: pathogenic or likely pathogenic variants and variants of uncertain significance in genes of interest. Patients will be followed for 15 years and clinical data with real time patient reported outcomes will be collected. Eligible patients will enter long-term follow-up (6-month PRO surveys and medical record retrieval). As a virtual study with patient self-enrollment, the PROMISE Registry may fill gaps in genetics services in underserved areas and for patients within sufficient insurance coverage. RESULTS: The PROMISE Registry opened in May 2021. 2114 patients have enrolled to date across 48 US states and 23 recruiting sites. 202 patients have met criteria for long-term follow-up. PROMISE is on target with the study's goal of 5000 patients screened and 500 patients eligible for long-term follow-up by 2026. CONCLUSIONS: The PROMISE Registry is a novel, prospective, germline registry that will collect long-term patient outcomes data to address current gaps in understanding resulting from recently FDA-approved treatments and updates to genetic testing recommendations for prostate cancer. Through inclusion of a broad nationwide sample, including underserved patients and those unaffiliated with major academic centers, the PROMISE Registry aims to provide access to germline genetic testing and to collect data to understand disease characteristics and treatment responses across the disease spectrum for prostate cancer with rare germline genetic variants.


Assuntos
Mutação em Linhagem Germinativa , Neoplasias da Próstata , Masculino , Humanos , Estudos Prospectivos , Neoplasias da Próstata/genética , Neoplasias da Próstata/terapia , Resultado do Tratamento , Sistema de Registros
2.
Br J Dermatol ; 190(4): 465-476, 2024 Mar 15.
Artigo em Inglês | MEDLINE | ID: mdl-37890083

RESUMO

BACKGROUND: Actinic keratosis (AK) is a common dermatological condition, and among the most common dermatological diagnoses in older populations. Although the prevalence of AK depends on demographic and environmental factors, little is known about the global context of AK. OBJECTIVES: To provide a comprehensive and updated analysis of the global prevalence rate and incidence of AK in the general population through a systematic review and meta-analysis, and - through subgroup analyses - to identify high-risk phenotypes, demographic and lifestyle risk factors and regional variations in disease prevalence. METHODS: A systematic search of Embase, MEDLINE, Web of Science and Google Scholar was performed on 20 May 2022. Two reviewers independently screened and assessed the quality of each study using a validated critical appraisal checklist. Epidemiological measurements (e.g. prevalence) from individual studies performed in the general population were then pooled in a random-effects meta-analysis. Subgroup analyses (i.e. population age, geographical region, occupation, sex and study quality) were conducted. RESULTS: Of the 65 articles that made it through the full-text screening, 60 reported a point prevalence. A meta-analysis of these articles yielded an overall point prevalence of 14% [95% confidence interval (CI) 14-15]. In further analyses, the calculated prevalence rate varied depending on subgroup. The pooled incidence rate from the seven eligible studies analysed was 1928 per 100 000 person-years (PY; 95% CI -439 to 4294). CONCLUSIONS: This comprehensive meta-analysis provides an updated global prevalence rate of AK of 14%, indicating a significant worldwide disease burden. The incidence rate of AK was found to be 1928 per 100 000 PY, emphasizing a growing public health concern. However, high heterogeneity among studies suggests that various factors influence the AK prevalence rate, necessitating further research to understand the observed differences.


Assuntos
Ceratose Actínica , Humanos , Idoso , Ceratose Actínica/epidemiologia , Fatores de Risco , Prevalência , Efeitos Psicossociais da Doença , Incidência
3.
Circ Res ; 130(5): 711-724, 2022 03 04.
Artigo em Inglês | MEDLINE | ID: mdl-35086342

RESUMO

BACKGROUND: Oxidative stress in cardiac disease promotes proarrhythmic disturbances in Ca2+ homeostasis, impairing luminal Ca2+ regulation of the sarcoplasmic reticulum (SR) Ca2+ release channel, the RyR2 (ryanodine receptor), and increasing channel activity. However, exact mechanisms underlying redox-mediated increase of RyR2 function in cardiac disease remain elusive. We tested whether the oxidoreductase family of proteins that dynamically regulate the oxidative environment within the SR are involved in this process. METHODS: A rat model of hypertrophy induced by thoracic aortic banding (TAB) was used for ex vivo whole heart optical mapping and for Ca2+ and reactive oxygen species imaging in isolated ventricular myocytes (VMs). RESULTS: The SR-targeted reactive oxygen species biosensor ERroGFP showed increased intra-SR oxidation in TAB VMs that was associated with increased expression of Ero1α (endoplasmic reticulum oxidoreductase 1 alpha). Pharmacological (EN460) or genetic Ero1α inhibition normalized SR redox state, increased Ca2+ transient amplitude and SR Ca2+ content, and reduced proarrhythmic spontaneous Ca2+ waves in TAB VMs under ß-adrenergic stimulation (isoproterenol). Ero1α overexpression in Sham VMs had opposite effects. Ero1α inhibition attenuated Ca2+-dependent ventricular tachyarrhythmias in TAB hearts challenged with isoproterenol. Experiments in TAB VMs and human embryonic kidney 293 cells expressing human RyR2 revealed that an Ero1α-mediated increase in SR Ca2+-channel activity involves dissociation of intraluminal protein ERp44 (endoplasmic reticulum protein 44) from the RyR2 complex. Site-directed mutagenesis and molecular dynamics simulations demonstrated a novel redox-sensitive association of ERp44 with RyR2 mediated by intraluminal cysteine 4806. ERp44-RyR2 association in TAB VMs was restored by Ero1α inhibition, but not by reducing agent dithiothreitol, as hypo-oxidation precludes formation of covalent bond between RyR2 and ERp44. CONCLUSIONS: A novel axis of intraluminal interaction between RyR2, ERp44, and Ero1α has been identified. Ero1α inhibition exhibits promising therapeutic potential by stabilizing RyR2-ERp44 complex, thereby reducing spontaneous Ca2+ release and Ca2+-dependent tachyarrhythmias in hypertrophic hearts, without causing hypo-oxidative stress in the SR.


Assuntos
Cardiopatias , Peptídeos e Proteínas de Sinalização Intracelular/metabolismo , Glicoproteínas de Membrana/metabolismo , Canal de Liberação de Cálcio do Receptor de Rianodina , Animais , Arritmias Cardíacas/metabolismo , Cálcio/metabolismo , Sinalização do Cálcio , Cardiopatias/metabolismo , Isoproterenol/farmacologia , Miócitos Cardíacos/metabolismo , Oxirredutases/metabolismo , Oxirredutases/farmacologia , Ratos , Espécies Reativas de Oxigênio/metabolismo , Canal de Liberação de Cálcio do Receptor de Rianodina/metabolismo , Retículo Sarcoplasmático/metabolismo
4.
Sensors (Basel) ; 24(5)2024 Feb 21.
Artigo em Inglês | MEDLINE | ID: mdl-38474926

RESUMO

This study addresses the need for advanced machine learning-based process monitoring in smart manufacturing. A methodology is developed for near-real-time part quality prediction based on process-related data obtained from a CNC turning center. Instead of the manual feature extraction methods typically employed in signal processing, a novel one-dimensional convolutional architecture allows the trained model to autonomously extract pertinent features directly from the raw signals. Several signal channels are utilized, including vibrations, motor speeds, and motor torques. Three quality indicators-average roughness, peak-to-valley roughness, and diameter deviation-are monitored using a single model, resulting in a compact and efficient classifier. Training data are obtained via a small number of experiments designed to induce variability in the quality metrics by varying feed, cutting speed, and depth of cut. A sliding window technique augments the dataset and allows the model to seamlessly operate over the entire process. This is further facilitated by the model's ability to distinguish between cutting and non-cutting phases. The base model is evaluated via k-fold cross validation and achieves average F1 scores above 0.97 for all outputs. Consistent performance is exhibited by additional instances trained under various combinations of design parameters, validating the robustness of the proposed methodology.

5.
Anal Chem ; 95(22): 8613-8620, 2023 06 06.
Artigo em Inglês | MEDLINE | ID: mdl-37229528

RESUMO

We report methods that improve the quantification of digital bead assays (DBA)─such as the digital enzyme-linked immunosorbent assay (ELISA)─that have found widespread use for high sensitivity measurement of proteins in clinical research and diagnostics. In digital ELISA, proteins are captured on beads, labeled with enzymes, individual beads are interrogated for activity from one or more enzymes, and the average number of enzymes per bead (AEB) is determined based on Poisson statistics. The widespread use of digital ELISA has revealed limitations to the original approaches to quantification that can lead to inaccurate AEB. Here, we have addressed the inaccuracy in AEB due to deviations from Poisson distribution in a digital ELISA for Aß-40 by changing the AEB calculation from a fixed threshold between digital counting and average normalized intensity to a smooth, continuous combination of digital counting and intensity. We addressed issues with determining the average product fluorescence intensity from single enzymes on beads by allowing outlier, high intensity arrays to be removed from average intensities, and by permitting the use of a wider range of arrays. These approaches improved the accuracy of a digital ELISA for tau protein that was affected by aggregated detection antibodies. We increased the dynamic range of a digital ELISA for IL-17A from AEB ∼25 to ∼130 by combining long and short exposure images at the product emission wavelength to create virtual images. The methods reported will significantly improve the accuracy and robustness of DBA based on imaging─such as single molecule arrays (Simoa)─and flow detection.


Assuntos
Anticorpos , Proteínas , Ensaio de Imunoadsorção Enzimática/métodos
6.
Biochem Biophys Res Commun ; 661: 89-98, 2023 06 18.
Artigo em Inglês | MEDLINE | ID: mdl-37087803

RESUMO

The ubiquity of wireless electronic-device connectivity has seen microwaves emerge as one of the fastest growing forms of electromagnetic exposure. A growing evidence-base refutes the claim that wireless technologies pose no risk to human health at current safety levels designed to limit thermal (heating) effects. The potential impact of non-thermal effects of microwave exposure, especially in electrically-excitable tissues (e.g., heart), remains controversial. We exposed human embryonic stem-cell derived cardiomyocytes (CM), under baseline and beta-adrenergic receptor (ß-AR)-stimulated conditions, to microwaves at 2.4 GHz, a frequency used extensively in wireless communication (e.g., 4G, Bluetooth™ and WiFi). To control for any effect of sample heating, experiments were done in CM subjected to matched rates of direct heating or CM maintained at 37 °C. Detailed profiling of the temporal and amplitude features of Ca2+ signalling in CM under these experimental conditions was reconciled with the extent and spatial clustering of apoptosis. The data show that exposure of CM to 2.4 GHz EMF eliminated the normal Ca2+ signalling response to ß-AR stimulation and provoked spatially-clustered apoptosis. This is first evidence that non-thermal effects of 2.4 GHz microwaves might have profound effects on human CM function, responsiveness to activation, and survival.


Assuntos
Micro-Ondas , Receptores Adrenérgicos beta , Humanos , Miócitos Cardíacos , Transdução de Sinais , Campos Eletromagnéticos
7.
Int J Mol Sci ; 24(24)2023 Dec 15.
Artigo em Inglês | MEDLINE | ID: mdl-38139325

RESUMO

Sjögren's Disease (SjD) is an autoimmune disorder associated with decreased saliva and/or tear secretions, resulting in patients reporting dryness in the mouth and eyes. Serum autoantibodies directed against the Ro60/SS-A and La/SS-B autoantigens are a distinctive feature of the disease. Analysis of the saliva and tear proteomes represents one promising alternative method of both classifying and monitoring the condition, and research into salivary and tear proteomics in patients with SjD, with and without sicca, has shown its efficacy and practicality in both clinical and research settings. Studies analyzing the saliva proteomics of SjD patients have generally shown an overexpression of proteins involved in T-cell activation, the immune response, ß-2 microglobulin, and the recruitment of pro-inflammatory agents. These studies also show a decrease in or downregulation of proteins involved in salivary secretion. Studies analyzing the tear proteomics of patients with SjD have generally indicated an upregulation of proteins involved with TNF-α signaling, B-cell survival, and the recruitment of pro-inflammatory agents. Studies also note the differential expression of tear protein folding as a hallmark of ocular involvement in this condition. These findings help to elucidate the biochemical relationship between the proteomes of saliva/tear fluids and the general pathophysiology of the gland involved with the pathogenesis of this condition, giving further credence to the potential role of salivary and tear proteomics in the future of diagnosis and treatment for patients with SjD.


Assuntos
Proteoma , Síndrome de Sjogren , Humanos , Proteoma/metabolismo , Proteômica/métodos , Lágrimas/metabolismo , Saliva/metabolismo
8.
Neurourol Urodyn ; 40(1): 509-514, 2021 01.
Artigo em Inglês | MEDLINE | ID: mdl-33348456

RESUMO

AIMS: Nocturia has been increasingly recognized as a potential manifestation of cardiovascular disease. However, the relationship between nocturia and electrocardiographic (ECG) abnormalities has not been studied. This study aims to characterize the diagnostic utility of nocturia in identifying left ventricular hypertrophy (LVH), left atrial enlargement (LAE), and prolonged QTc on ECG. METHODS: Retrospective analysis of nocturnal voiding frequency and contemporaneous ECG data from consecutive patients evaluated at a university-based outpatient cardiology clinic. Three sets of three incremental binary multiple logistic regression models controlling for (1) age, (2) sex and race, and (3) body mass index, hypertension, diabetes mellitus, and diuretic utilization were performed to determine whether nocturia was predictive of LVH, LAE, and prolonged QTc. RESULTS: Included patients (n = 143, 77.6% nocturia) were predominantly African-American (89.5%), female (74.1%), and obese (61.5%), of whom 44.1%, 41.3%, and 27.3% had LVH, LAE, and prolonged QTc, respectively. Older age, African-American race, obesity, hypertension, diuretic use, LVH, and LAE were significantly associated with nocturia on univariate analysis. No significant differences were observed in the strength of associations between nocturia and LVH, LAE, or QTc prolongation based on age. Nocturia independently predicted LVH in Models I-III (odds ratios [ORs], 2.99-3.20; relative risks [RRs], 1.18 for all, p ≤ .046) and LAE in Models I-III (ORs, 4.24-4.72; RRs, 1.21 for all, p ≤ .015). No significant associations were observed between nocturia and prolonged QTc. CONCLUSIONS: Nocturia may be a risk marker for underlying structural cardiac abnormalities.


Assuntos
Doenças Cardiovasculares/complicações , Eletrocardiografia/métodos , Noctúria/diagnóstico , Adolescente , Adulto , Idoso , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Noctúria/patologia , Estudos Retrospectivos , Adulto Jovem
9.
Int J Mol Sci ; 22(23)2021 Dec 02.
Artigo em Inglês | MEDLINE | ID: mdl-34884838

RESUMO

Alterations to amino acid residues G4946 and I4790, associated with resistance to diamide insecticides, suggests a location of diamide interaction within the pVSD voltage sensor-like domain of the insect ryanodine receptor (RyR). To further delineate the interaction site(s), targeted alterations were made within the same pVSD region on the diamondback moth (Plutella xylostella) RyR channel. The editing of five amino acid positions to match those found in the diamide insensitive skeletal RyR1 of humans (hRyR1) in order to generate a human-Plutella chimeric construct showed that these alterations strongly reduce diamide efficacy when introduced in combination but cause only minor reductions when introduced individually. It is concluded that the sites of diamide interaction on insect RyRs lie proximal to the voltage sensor-like domain of the RyR and that the main site of interaction is at residues K4700, Y4701, I4790 and S4919 in the S1 to S4 transmembrane domains.


Assuntos
Diamida/química , Proteínas de Insetos/química , Canal de Liberação de Cálcio do Receptor de Rianodina/química , Animais , Sítios de Ligação , Cafeína/farmacologia , Sinalização do Cálcio/efeitos dos fármacos , Diamida/metabolismo , Diamida/farmacologia , Humanos , Proteínas de Insetos/genética , Proteínas de Insetos/metabolismo , Resistência a Inseticidas/efeitos dos fármacos , Inseticidas/química , Inseticidas/metabolismo , Inseticidas/farmacologia , Mariposas/metabolismo , Mutagênese Sítio-Dirigida , Proteínas Recombinantes de Fusão/biossíntese , Proteínas Recombinantes de Fusão/química , Proteínas Recombinantes de Fusão/genética , Canal de Liberação de Cálcio do Receptor de Rianodina/genética , Canal de Liberação de Cálcio do Receptor de Rianodina/metabolismo , ortoaminobenzoatos/química , ortoaminobenzoatos/metabolismo , ortoaminobenzoatos/farmacologia
10.
J Cell Sci ; 131(15)2018 08 03.
Artigo em Inglês | MEDLINE | ID: mdl-29930088

RESUMO

The cardiac muscle ryanodine receptor-Ca2+ release channel (RyR2) constitutes the sarcoplasmic reticulum (SR) Ca2+ efflux mechanism that initiates myocyte contraction, while cardiac myosin-binding protein-C (cMyBP-C; also known as MYBPC3) mediates regulation of acto-myosin cross-bridge cycling. In this paper, we provide the first evidence for the presence of direct interaction between these two proteins, forming a RyR2-cMyBP-C complex. The C-terminus of cMyBP-C binds with the RyR2 N-terminus in mammalian cells and the interaction is not mediated by a fibronectin-like domain. Notably, we detected complex formation between both recombinant cMyBP-C and RyR2, as well as between the native proteins in cardiac tissue. Cellular Ca2+ dynamics in HEK293 cells is altered upon co-expression of cMyBP-C and RyR2, with lowered frequency of RyR2-mediated spontaneous Ca2+ oscillations, suggesting that cMyBP-C exerts a potential inhibitory effect on RyR2-dependent Ca2+ release. Discovery of a functional RyR2 association with cMyBP-C provides direct evidence for a putative mechanistic link between cytosolic soluble cMyBP-C and SR-mediated Ca2+ release, via RyR2. Importantly, this interaction may have clinical relevance to the observed cMyBP-C and RyR2 dysfunction in cardiac pathologies, such as hypertrophic cardiomyopathy.


Assuntos
Proteínas de Transporte/metabolismo , Canal de Liberação de Cálcio do Receptor de Rianodina/metabolismo , Cálcio/metabolismo , Sinalização do Cálcio/fisiologia , Citosol/metabolismo , Células HEK293 , Humanos , Ligação Proteica , Retículo Sarcoplasmático/metabolismo
11.
Circ Res ; 116(8): 1324-35, 2015 Apr 10.
Artigo em Inglês | MEDLINE | ID: mdl-25648700

RESUMO

RATIONALE: Flecainide, a class 1c antiarrhythmic, has emerged as an effective therapy in preventing arrhythmias in patients with catecholaminergic polymorphic ventricular tachycardia (CPVT) refractory to ß-adrenergic receptor blockade. It has been proposed that the clinical efficacy of flecainide in CPVT is because of the combined actions of direct blockade of ryanodine receptors (RyR2) and Na(+) channel inhibition. However, there is presently no direct evidence to support the notion that flecainide blocks RyR2 Ca(2+) flux in the physiologically relevant (luminal-to-cytoplasmic) direction. The mechanism of flecainide action remains controversial. OBJECTIVE: To examine, in detail, the effect of flecainide on the human RyR2 channel and to establish whether the direct blockade of physiologically relevant RyR2 ion flow by the drug contributes to its therapeutic efficacy in the clinical management of CPVT. METHODS AND RESULTS: Using single-channel analysis, we show that, even at supraphysiological concentrations, flecainide did not inhibit the physiologically relevant, luminal-to-cytosolic flux of cations through the channel. Moreover, flecainide did not alter RyR2 channel gating and had negligible effect on the mechanisms responsible for the sarcoplasmic reticulum charge-compensating counter current. Using permeabilized cardiac myocytes to eliminate any contribution of plasmalemmal Na(+) channels to the observed actions of the drug at the cellular level, flecainide did not inhibit RyR2-dependent sarcoplasmic reticulum Ca(2+) release. CONCLUSIONS: The principal action of flecainide in CPVT is not via a direct interaction with RyR2. Our data support a model of flecainide action in which Na(+)-dependent modulation of intracellular Ca(2+) handling attenuates RyR2 dysfunction in CPVT.


Assuntos
Antiarrítmicos/farmacologia , Flecainida/farmacologia , Miócitos Cardíacos/efeitos dos fármacos , Canal de Liberação de Cálcio do Receptor de Rianodina/efeitos dos fármacos , Taquicardia Ventricular/tratamento farmacológico , Bloqueadores do Canal de Sódio Disparado por Voltagem/farmacologia , Animais , Sinalização do Cálcio/efeitos dos fármacos , Relação Dose-Resposta a Droga , Células HEK293 , Humanos , Ativação do Canal Iônico/efeitos dos fármacos , Masculino , Potenciais da Membrana , Miócitos Cardíacos/metabolismo , Canais de Potássio/efeitos dos fármacos , Canais de Potássio/metabolismo , Ratos Sprague-Dawley , Canal de Liberação de Cálcio do Receptor de Rianodina/genética , Canal de Liberação de Cálcio do Receptor de Rianodina/metabolismo , Retículo Sarcoplasmático/efeitos dos fármacos , Retículo Sarcoplasmático/metabolismo , Taquicardia Ventricular/metabolismo , Taquicardia Ventricular/fisiopatologia , Fatores de Tempo , Transfecção
13.
Birth Defects Res A Clin Mol Teratol ; 100(2): 92-9, 2014 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-24532453

RESUMO

BACKGROUND: Assisted reproductive technology (ART) has assisted many infertile couples in conceiving. Despite increasing use in the United States, the association between ART and congenital anomalies remains a highly contested subject. We conducted a study to examine the risk of congenital anomalies among infants conceived using ART. METHODS: A retrospective cohort study of 344,567 infants born in Colorado from 2007 to 2011 was conducted using data obtained from the Colorado Birth Certificate Database. The incidence of congenital anomalies identified at birth following conception with ART was assessed and compared with all naturally conceived infants born during the same time period. The odds ratio was calculated using multiple logistic regression after adjusting for multiple confounders. RESULTS: Of 2071 infants, 23 (1.11%) conceived using ART had a congenital anomaly identified at birth compared with 3826 (1.12%) of 342,496 infants conceived naturally. The adjusted odds ratio of a congenital anomaly among infants born following conception with ART was 1.01 (95% confidence interval, 0.67-1.52). The proportion of infants born following usage of ART in Colorado has not changed significantly (p = 0.20) from 2007 to 2011 with an overall proportion of 0.60% (range 0.52-0.64%), while the incidence of congenital anomalies has decreased significantly (p = 0.002) during the study years with an average of 1.12% (range, 0.92-1.25%). CONCLUSION: This study suggests that conception by means of ART is not associated with an increased risk of congenital abnormalities identified by birth certificate data in Colorado when compared with births following natural conception.


Assuntos
Declaração de Nascimento , Anormalidades Congênitas/epidemiologia , Técnicas de Reprodução Assistida/estatística & dados numéricos , Adolescente , Adulto , Criança , Colorado/epidemiologia , Anormalidades Congênitas/diagnóstico , Bases de Dados Factuais , Feminino , Humanos , Incidência , Recém-Nascido , Modelos Logísticos , Masculino , Razão de Chances , Estudos Retrospectivos
14.
J Arthroplasty ; 29(1): 236-41, 2014 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-23759117

RESUMO

A consecutive, non-selective cohort of 83 (77 patients) cemented total hip arthroplasty revisions using contemporary cementing techniques was analyzed at a minimum of 20 years following the index procedure. No patients were lost to follow-up. The average age at revision was 62.4 years (23 to 89). Twenty-two hips (26.5%) had had a reoperation, eighteen (21.7%) for aseptic loosening, 3 (3.6%) for femoral prosthesis fracture and 1 (1.2%) for dislocation. The incidence of re-revision for aseptic femoral loosening was 7.5% and for aseptic acetabular loosening was 21.7%. These results confirm that cemented femoral revision using improved cementing techniques is a durable option in revision hip surgery. In contrast to this, THA revisions using a cemented acetabular component have been less durable at this length of follow-up.


Assuntos
Artroplastia de Quadril/efeitos adversos , Articulação do Quadril/cirurgia , Artropatias/cirurgia , Falha de Prótese , Adulto , Idoso , Idoso de 80 Anos ou mais , Cimentação , Feminino , Seguimentos , Humanos , Masculino , Pessoa de Meia-Idade , Reoperação , Resultado do Tratamento , Adulto Jovem
15.
Int J Environ Health Res ; 24(1): 31-43, 2014.
Artigo em Inglês | MEDLINE | ID: mdl-23578074

RESUMO

A study was undertaken to determine the efficacy of hygiene practices in 2 primary schools in Malawi. The study determined: (1) presence of Escherichia coli on the hands of 126 primary school pupils, (2) knowledge, awareness and hygiene practices amongst pupils and teachers and (3) the school environment through observation. Pupil appreciation of hygiene issues was reasonable; however, the high percentage presence of E. coli on hands (71%) and the evidence of large-scale open defaecation in school grounds revealed that apparent knowledge was not put into practice. The standard of facilities for sanitation and hygiene did not significantly impact on the level of knowledge or percentage of school children's hands harbouring faecal bacteria. Evidence from pupils and teachers indicated a poor understanding of principles of disease transmission. Latrines and hand-washing facilities constructed were not child friendly. This study identifies a multidisciplinary approach to improve sanitation and hygiene practices within schools.


Assuntos
Infecções por Escherichia coli/epidemiologia , Escherichia coli/isolamento & purificação , Conhecimentos, Atitudes e Prática em Saúde , Higiene/normas , Saneamento/normas , Abastecimento de Água/análise , Adulto , Criança , Infecções por Escherichia coli/microbiologia , Docentes , Feminino , Mãos/microbiologia , Desinfecção das Mãos , Humanos , Malaui , Masculino , Instituições Acadêmicas , Estudantes , Inquéritos e Questionários
16.
Int J Drug Policy ; 126: 104368, 2024 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-38452423

RESUMO

There have been several recent commentaries which have highlighted the relevance of the postcolonial perspective to drug prohibition and called for the decolonisation of drug policy (Daniels et al., 2021; Hillier, Winkler & Lavallée, 2020; Lasco, 2022; Mills, 2019). While these are significant interventions in the field, sparse drugs scholarship has engaged more directly with well-developed literature and concepts from Critical Indigenous Studies (Moreton-Robinson, 2016) and Indigenous Standpoint Theory (Moreton-Robinson, 2013; Nakata, 2007) and reflected on its applicability to the drug and alcohol field. In contrast to the postcolonial perspective, which understands colonisation as a historical event with contemporary impacts, Indigenous scholarship conceptualises colonisation as an active and ongoing part of how the settler-state continues to impose itself. From this vantage point I explore coloniality as a system of power and reflect on the way prohibition acts as a key arm of the settler-colonial state. The paper explores the way concepts like vulnerability, marginality, overrepresentation, disproportionality and addiction involve colonial violence, knowledge practices and narratives which are central to the way coloniality is maintained and continues to assert itself in contemporary settler societies.


Assuntos
Colonialismo , Transtornos Relacionados ao Uso de Substâncias , Humanos , Controle de Medicamentos e Entorpecentes/legislação & jurisprudência , Povos Indígenas
17.
Int J Drug Policy ; 127: 104425, 2024 May.
Artigo em Inglês | MEDLINE | ID: mdl-38615484

RESUMO

In this paper, we explore how the social harm approach can be adapted within drug policy scholarship. Since the mid-2000s, a group of critical criminologists have moved beyond the concept of crime and criminology, towards the study of social harm. This turn proceeds decades of research that highlights the inequities within the criminal legal system, the formation of laws that protect the privileged and punish the disadvantaged, and the systemic challenge of the effectiveness of retribution and punishment at addressing harm in the community. The purpose of this paper is to first identify parallels between the social harm approach and critical drug scholarship, and second to advocate for the adoption of a social harm lens in drug policy scholarship. In the paper, we draw out the similarities between social harm and drug policy literatures, as well as outline what the study of social harm can bring to an analysis of drug policy. This includes a discussion on the ontology of drug crime, the myth of drug crime and the ineffective use of the crime control system in response to drug use. The paper then discusses how these conversations in critical criminology and critical drugs scholarship can be brought together to inform future drug policy research. This reflection details the link between social harm and the impingement of human flourishing, explores the role of decolonizing drug policy, advocates for the centralization of lived experience within the research process and outlines how this might align with harm reduction approaches. We conclude by arguing that the social harm approach challenges the idea that neutrality is the goal in drug policy and explicitly seeks to expand new avenues in activist research and social justice approaches to policymaking.


Assuntos
Crime , Transtornos Relacionados ao Uso de Substâncias , Humanos , Transtornos Relacionados ao Uso de Substâncias/prevenção & controle , Controle de Medicamentos e Entorpecentes/legislação & jurisprudência , Política Pública , Redução do Dano , Formulação de Políticas , Criminologia
18.
JAAD Int ; 14: 69-76, 2024 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-38274396

RESUMO

Background/Purpose: Cutaneous squamous cell carcinoma (cSCC) is one of the most common malignancies worldwide. While several environmental risk factors for cSCC are well established, there is conflicting evidence on cigarette smoking (and its potential causal effect) and cSCC risk. Furthermore, it is unclear if these potential associations represent causal, modifiable risk factors for cSCC development. This study aims to assess the nature of the associations between cigarette smoking traits (smoking initiation, amount smoked, and lifetime smoking exposure) and cSCC risk using two-sample Mendelian randomization analyses. Methods: Genetic instruments, based on common genetic variants associated with cigarette smoking traits (P < 5 × 10-8), were derived from published genome-wide association studies (GWASs). For cSCC, we used GWAS summary statistics from the Kaiser Permanente GERA cohort (7701 cSCC cases and 60,167 controls; all non-Hispanic Whites). Results: We found modest evidence that genetically determined lifetime smoking was associated with cSCC (inverse-variance weighted method: OR[95% CI] = 1.47[1.09-1.98]; P = .012), suggesting it may be a causal risk factor for cSCC. We did not detect any evidence of association between genetically determined smoking initiation or amount smoked and cSCC risk. Conclusion: Study findings highlight the importance of smoking prevention and may support risk-stratified cSCC screening strategies based on carcinogen exposure and other genetic and clinical information.

20.
Int J Drug Policy ; 119: 104123, 2023 09.
Artigo em Inglês | MEDLINE | ID: mdl-37454607

RESUMO

The theory of the normalisation of youth drug use in advanced capitalist societies has had an enduring legacy in contemporary drug scholarship. While the literature on the normalisation of 'illicit' drugs is well developed, less has been written about application of the theory to emerging discourse of pharmaceutical 'abuse', and how this might necessitate different thinking around what can be considered normal consumption. Pharmaceuticals are not directly associated with criminality, and their use does not traditionally attract stigma. In fact, social science scholarship has illustrated how many substances deemed illicit are normalised in the context of an ever-growing set of medical treatments. This paper explores the assumptions about legality, sociality and pleasure which sit behind the drug normalisation thesis, by reflecting on the relevance of drug normalisation in relation to pharmaceuticals, as well as examining scholarship on the medicalisation of society and qualitative research on non-medical use to illustrate the parallel processes of normalisation that apply to pharmaceuticals. The paper argues that questions of normalisation in relation to pharmaceutical use require a deeper engagement with the normative expectations we attach to pleasure, consumption and medicine, and the way this is structured by proximity to medical authority, whiteness and middle-classness.


Assuntos
Drogas Ilícitas , Adolescente , Humanos , Comportamento Social , Prazer , Pesquisa Qualitativa , Medicalização
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