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INTRODUCTION: Sexual health education among individuals with autism spectrum disorder (ASD) is unique and may not be adequately addressed both at home and at school. Parents have an important role in delivering sexual health education to their children. This is a pilot study to evaluate parental awareness and effectiveness of parent sexual health training for children with ASD. MATERIALS AND METHODS: Parents of 30 children with ASD with ages ranging from 8 to 12 years attending Child Development Clinic, Hospital Pulau Pinang (CDC HPP) were recruited. Parents attended two-hour virtual parent sexual health training and educational materials were provided to be utilised at home. Follow-up via phone consultation were done at three and six months to ensure training was carried out. Both structured interview and Vineland adaptive behaviour scales (VABS-3) were done at recruitment and at eight months via phone consultation. Wilcoxon-signed rank test was used to analyse differences between pre- and postintervention outcome measures. RESULTS: Statistically significant increase in number of sexual health topics taught by parents and appropriate socio-sexual behaviours of children were found. Intellectual function of children with ASD influenced the study outcomes. CONCLUSION: Parent sexual health training can be done to empower parents to educate children with ASD and promote appropriate socio-sexual behaviours.
Assuntos
Transtorno do Espectro Autista , Pais , Saúde Sexual , Humanos , Transtorno do Espectro Autista/terapia , Criança , Pais/educação , Pais/psicologia , Feminino , Masculino , Projetos Piloto , Saúde Sexual/educação , Adulto , Educação SexualRESUMO
INTRODUCTION: This study aimed to determine the prevalence and association between the severity of COVID-19 and short and long-term neuropsychiatric symptoms, as well as the risk factors for the development of these symptoms. MATERIALS AND METHODS: A prospective observational study was conducted between 1st October 2021 till September 2022 in the state of Johor, Malaysia. 300 patients with confirmed SARS-CoV-2 infection were randomly selected and followed up for six months. Data were analysed by using Chi-square test, Fisher's Exact test, Paired t test and Multiple logistic regression. RESULTS: The prevalence of short-term neuropsychiatric symptoms was 78%, with anosmia being the most prevalent symptom. Long-term symptoms were found in 22.75% of patients, with headache being the most prevalent (p= 0.001). COVID-19 Stage 2 and 3 infections were associated with a higher risk of short-term neuropsychiatric symptoms, OR for Stage 2 infection was 5.18 (95% CI: 1.48-16.97; p=0.009) and for Stage 3 infection was 4.52 (95% CI: 1.76-11.59; p=0.002). Complete vaccination was a significant predictor of longterm symptoms with adjusted OR 3.65 (95% CI 1.22-10.91; p=0.021). CONCLUSION: This study demonstrated that neuropsychiatric symptoms were common among COVID-19 patients in Johor, Malaysia and the risk of these symptoms was associated with the severity of the infection. Additionally, complete vaccination does not completely protect against long-term neuropsychiatric deficits. This is crucial for continuous monitoring and addressing neuropsychiatric symptoms in COVID-19 survivors.
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COVID-19 , Pacientes Internados , Humanos , Anosmia , COVID-19/complicações , COVID-19/epidemiologia , Malásia/epidemiologia , SARS-CoV-2 , Estudos ProspectivosRESUMO
The global outbreak of coronavirus disease 2019(COVID-19) pandemic has heavily impacted the health service, leading to increased mortality and morbidity. Although known to manifest primarily as a respiratory illness, there are reports of cardiac involvement as extrapulmonary manifestation. We are reporting a case of pericarditis in a young patient who presented with only cardiac symptoms in COVID-19. He was admitted to the hospital for observation and treated with oral colchicine and oral ibuprofen. His conditions improved and subsequently discharged well. Acute pericarditis can present as part of the COVID-19 extrapulmonary spectrum. Therefore, it is important and challenging for clinicians to recognise the atypical presentations of COVID-19 to reduce morbidity and mortality.
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COVID-19 , Pericardite , COVID-19/complicações , Surtos de Doenças , Hospitalização , Hospitais de Distrito , Humanos , Masculino , Pericardite/diagnóstico , Pericardite/tratamento farmacológico , Pericardite/etiologiaRESUMO
INTRODUCTION: COVID-19 pandemic has affected healthcare services around the globe as hospitals were turned into designated hospitals to accommodate high risk groups of patients with COVID-19 infection including end stage kidney disease (ESKD) patients. In Malaysia, there was insufficient data on COVID-19 infection among ESKD patients. This study aims to determine factors and survival outcomes associated with COVID-19 infection among ESKD patients in a designated COVID-19 hospital in Malaysia. METHODS AND MATERIALS: A retrospective cross-sectional study involving 80 haemodialysis (HD) patients recruited from March 2020 till March 2021. Patients' information and results was retrieved and evaluated. Risk factors affecting the COVID-19 mortality were analysed using a one-way analysis of variance (ANOVA) and binary logistic regression. RESULTS: The mean age of the patients was 54 years who were predominantly Malays (87.5%) and living in rural areas. Majority of them had comorbidities such as diabetes mellitus (71%) and hypertension (90%). The most common presentations were fever (46%) and cough (54%) with chest radiographs showing bilateral lower zone ground glass opacities (45%). A quarter of the study population were admitted to the intensive care unit, necessitating mechanical ventilation. This study found that 51% of the patients were given steroids and 45% required oxygen supplementation. The COVID-19 infection mortality among the study population was 12.5%. Simple logistic regression analysis showed that albumin, Odd Ratio, OR=0.85 (95% Confidence Interval, 95%CI: 0.73, 0.98)) and absolute lymphocyte count OR=0.08 (95%CI: 0.11, 0.56) have inverse association with COVID-19 mortality. C-reactive protein OR=1.02 (95%CI: 1.01, 1.04), lactate dehydrogenase OR=1.01 (95%CI: 1.00, 1.01), mechanical ventilation OR=17.21 (95%CI: 3.03, 97.67) and high dose steroids OR=15.71 (95%CI: 1.80, 137.42) were directly associated with COVID-19 mortality. CONCLUSION: The high mortality rate among ESKD patients receiving HD was alarming. This warrants additional infection control measures to prevent the spread of COVID- 19 infection among this vulnerable group of patients. Expediting vaccination efforts in this group of patients should be advocated to reduce the incidence of complications from COVID-19 infection.
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COVID-19 , Falência Renal Crônica , Estudos Transversais , Hospitais , Humanos , Falência Renal Crônica/complicações , Falência Renal Crônica/epidemiologia , Falência Renal Crônica/terapia , Pessoa de Meia-Idade , Pandemias , Diálise Renal , Estudos Retrospectivos , Fatores de Risco , SARS-CoV-2RESUMO
INTRODUCTION: Authorities publish recommendations on the hepatitis B virus (HBV) viral load threshold to initiate antiviral treatment but the timing of quantification during pregnancy is not well defined. HBV DNA levels in pregnancy women at 28-30 weeks predict the risk of immunoprophylaxis failure. This study compared and evaluated the correlation between HBV DNA levels before 22 and 28-30 weeks' gestation. Clinical predictive factors for HBV DNA >6, 7 and 8 log10 IU/mL were studied. MATERIAL AND METHODS: A retrospective analysis of HBV DNA levels of women <22 and 28-30 weeks of gestation was carried out in 352 pregnant HBV carriers. HBV DNA was examined using the COBAS TaqMan HBV Monitor Test coupled with the COBAS Ampliprep extraction system (Both Roche Diagnostics, Branchburg, NJ, USA). RESULTS: A strong positive correlation was found between the viral loads of women <22 weeks (mean 16.7 weeks) and 28-30 weeks of gestation, which was independent of the viral load level and gestational age of quantification (r = 0.942, P < 0.001). Univariate analysis showed that positive hepatitis B e antigen (HBeAg), maternal age <35 years old and body mass index ≤21 kg/m2 were associated with a higher mean viral load at 28-30 weeks of gestation (P < 0.05). These factors were also associated with a higher chance of viral load >6, 7 and 8 log10 IU/mL at 28-30 weeks (P < 0.05). In multiple regression analysis, only the viral load of <22 weeks and positive HBeAg remained predictive of a higher mean viral load at 28-30 weeks of gestation (P < 0.05). The receiver operating characteristic curve showed that the HBV DNA of <22 weeks was an excellent predictor for different viral load cut-offs at 28-30 weeks. The area under curve was 0.986, 0.998 and 0.994 for viral load 6, 7 and 8 log10 IU/mL, respectively. CONCLUSIONS: HBV DNA quantification should be performed before 22 weeks of gestation. Viral load cut-offs similar to those at 28 weeks can be used to determine immunoprophylaxis failure at earlier gestation. Maternal positive HBeAg status was associated with a higher chance of viral load >6, 7 or 8 log10 IU/mL.
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DNA Viral/análise , Vacinas contra Hepatite B/administração & dosagem , Vírus da Hepatite B/genética , Hepatite B/tratamento farmacológico , Complicações Infecciosas na Gravidez/virologia , Carga Viral , Adulto , Feminino , Hong Kong , Hospitais Públicos , Humanos , Recém-Nascido , Transmissão Vertical de Doenças Infecciosas/prevenção & controle , Gravidez , Segundo Trimestre da Gravidez , Estudos Prospectivos , Estudos Retrospectivos , Fatores de RiscoRESUMO
INTRODUCTION: Increased prevalence of dengue fever had led to increase stress in providing optimal care for patients. This has been identified as a potential factor that may lead to negative health effects on medical doctors. This study was designed to review the prevalence and associated factors of burnout syndrome (including depression, anxiety, and stress level) among clinicians in the setting of increasing cases of dengue in Malaysia. METHODS: A cross-sectional, multi-centre study was carried out among doctors in contact with patients with dengue infection from four major hospitals in Malaysia in 2015 using Maslach Burnout Inventory and DASS-21 questionnaire. RESULTS: A total of 313 respondents were included in this study with 15.9% of the respondents experiencing high burnout syndrome. Long working hours, depression, anxiety, and stress were significantly associated with high degree of burnout syndrome (p<0.05). However, number of dengue cases reviewed was not significantly associated with the degree of burnout syndrome. Depression and stress were among factors identified as the predictors for burnout syndrome. CONCLUSION: High degree of burnout syndrome among clinicians with significant correlations with symptoms of depression and stress will require early identification to enable early measures to resolve, as well as prevent it. Future studies with more hospitals involvement should be conducted to establish the relationship between the degree of burnout syndrome and prevalence of dengue infection.
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Esgotamento Profissional/etiologia , Dengue/terapia , Pessoal de Saúde/psicologia , Adulto , Esgotamento Profissional/epidemiologia , Estudos Transversais , Dengue/psicologia , Feminino , Pessoal de Saúde/estatística & dados numéricos , Humanos , Malásia/epidemiologia , Masculino , Prevalência , Fatores de Risco , Inquéritos e QuestionáriosRESUMO
Purpose Patients with severe deformity beyond the standard indications for unicompartmental knee arthroplasty (UKA) may be suitable and benefit from UKA. This study investigated their outcomes to determine whether good function and quality of life (QOL) can be achieved. MATERIALS AND METHODS: Fifty-three patients with severe deformity (40 patients with FFD ≥15° and 13 patients with varus deformity ≥15°, Group A) were matched with 53 patients with less severe deformities who underwent UKA (Group B/controls) in terms of age, sex, BMI and duration of follow-up. Their flexion range, Knee Society scores (KSS), Oxford knee scores (OKS) and SF-36 QOL scores were analysed pre-operatively and at 2 years. RESULTS: Group A patients were largely similar to Group B patients pre-operatively in terms of maximum flexion angle, OKS and SF-36 scores except for knee score and mental health component of SF-36. At 2 years, Group A reported largely similar results compared with Group B in all outcome scores (OKS, KSS, SF-36) and flexion angle. Post-operative mechanical alignment was better for the control group though it is not statistically significant. There were no revisions in the patients with severe pre-operative deformity at 5 years post-operatively. (Survivorship 100 % at 5 years). CONCLUSION: Selected patients with severe deformity can achieve good function and QOL with UKA if satisfactory mechanical alignment is restored. This study supports a broadening of the indications of UKA; however, further follow-up is needed to assess the longer-term durability of the operation. LEVEL OF EVIDENCE: IV.
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Artroplastia do Joelho/métodos , Genu Varum/cirurgia , Deformidades Articulares Adquiridas/cirurgia , Osteoartrite do Joelho/cirurgia , Feminino , Humanos , Articulação do Joelho/cirurgia , Prótese do Joelho , Masculino , Pessoa de Meia-Idade , Período Pós-Operatório , Qualidade de Vida , Amplitude de Movimento Articular , Resultado do TratamentoRESUMO
Pulmonary actinomycosis is a rare yet important and challenging diagnosis to make. It is commonly confused with other lung diseases, such as tuberculosis and bronchogenic carcinoma, leading to delay diagnosis or misdiagnosis. A 49-year-old man presented with a chronic cough, hemoptysis, and pleuritic chest pain. His initial imaging studies including computed tomography (CT) was suggestive of bronchogenic carcinoma. A subsequent CTguided biopsy was consistent with pulmonary actinomycosis and excluded the possibility of bronchogenic carcinoma. He was treated with antibiotic therapy and achieved remission with complete radiological resolution upon follow-up.
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Actinomicose/diagnóstico , Pneumopatias/diagnóstico , Neoplasias Pulmonares/diagnóstico , Actinomicose/diagnóstico por imagem , Diagnóstico Diferencial , Humanos , Pulmão/diagnóstico por imagem , Pulmão/microbiologia , Pneumopatias/diagnóstico por imagem , Pneumopatias/microbiologia , Masculino , Pessoa de Meia-Idade , Radiografia Torácica , Tomografia Computadorizada por Raios XRESUMO
BACKGROUND: Brain volume loss occurs in patients with relapsing-remitting MS. Fingolimod reduced brain volume loss in three phase 3 studies. OBJECTIVE: To evaluate whether the effect of fingolimod on disability progression was mediated by its effects on MRI lesions, relapses or brain volume loss, and the extent of this effect. METHODS: Patients (992/1272; 78%) from the FTY720 Research Evaluating Effects of Daily Oral Therapy in Multiple Sclerosis (FREEDOMS) study were analyzed. Month-24 percentage brain volume change, month-12 MRI-active lesions and relapse were assessed. The Prentice criteria were used to test surrogate marker validity. The proportion of treatment effect on disability progression explained by each marker was calculated. RESULTS: Two-year disability progression was associated with active T2 lesions (OR = 1.24; p = 0.001) and more relapses during year 1 (OR = 2.90; p < 0.001) and lower percentage brain volume change over two years (OR = 0.78; p < 0.001). Treatment effect on active T2 lesions, relapses and percentage brain volume change explained 46%, 60% and 23% of the fingolimod effect on disability. Multivariate analysis showed the number of relapses during year 1 (OR = 2.62; p < 0.001) and yearly percentage brain volume change over two years (OR = 0.85; p = 0.009) were independent predictors of disability progression, together explaining 73% of fingolimod effect on disability. CONCLUSIONS: The treatment effect on relapses and, to a lesser extent, brain volume loss were both predictors of treatment effect on disability; combining these predictors better explained the effect on disability than either factor alone.
Assuntos
Encéfalo/patologia , Avaliação da Deficiência , Cloridrato de Fingolimode/uso terapêutico , Imunossupressores/uso terapêutico , Esclerose Múltipla Recidivante-Remitente/tratamento farmacológico , Adulto , Progressão da Doença , Método Duplo-Cego , Feminino , Humanos , Imageamento por Ressonância Magnética , Masculino , Esclerose Múltipla Recidivante-Remitente/patologiaRESUMO
BACKGROUND/AIM: We aimed to compared estimated glomerular filtration rate (eGFR) according to the Chronic Kidney Disease Epidemiology Collaboration equation (CKD-EPI), with (mL/min/1.73 m(2) ) and without body surface area (BSA) normalisation (CKD-EPI_noBSA, mL/min) against measured (99m) Technetium - diethylenepentaacetic acid (Tc-DTPA GFR) (mL/min) in 222 individuals, including 80 with malignancy. METHODS: BSA was calculated for each individual using the Du Bois equation. The CKD-EPI and CKD-EPI_noBSA equations were compared with measured Tc-DTPA GFR with respect to bias, proportion within 30% of GFR (P30) and root mean square error for predicting levels of GFR, and concordance in relation to carboplatin dosing. RESULTS: The mean (SD) for BSA and measured GFR for the entire group was 1.99 (0.25) m(2) and 127 (41) mL/min respectively. The P30 for Tc-DTPA GFR was significantly higher with the CKD-EPI_noBSA (80%) than with the CKD-EPI equation (63%, P = 0.0001). In those with body mass index (BMI) > 30 kg/m(2) , the P30 values for the CKD-EPI_noBSA and CKD-EPI were 74% and 42% respectively (P < 0.0001). Carboplatin dosing concordance for the cancer patients using the CKD-EPI and CKD-EPI_noBSA equation was 71% and 56% respectively (P = 0.07). In 78 individuals with BMI > 30 kg/m(2) , concordance in relation to carboplatin dosing using CKD-EPI_noBSA was 65% compared with 26% with the CKD-EPI (P < 0.0001). CONCLUSION: The CKD-EPI without normalisation (CKD-EPI_noBSA) equation was superior to the CKD-EPI equation in estimating raw-measured Tc-DTPA GFR (mL/min).
Assuntos
Superfície Corporal , Carboplatina/farmacocinética , Taxa de Filtração Glomerular/fisiologia , Obesidade/metabolismo , Insuficiência Renal Crônica/metabolismo , Adulto , Idoso , Índice de Massa Corporal , Humanos , Pessoa de Meia-Idade , Pentetato de Tecnécio Tc 99m/metabolismo , Adulto JovemRESUMO
BACKGROUND: Plasma concentrations of the anticoagulant dabigatran are correlated with clinical outcomes, and are affected by renal function, intestinal P-glycoprotein (P-gp) activity and stomach acidity. AIMS: To determine the adherence to dabigatran etexilate renal dosing guidelines, the frequency of co-prescription of potentially interacting drugs in patients on dabigatran, and how these related to dabigatran dosing. METHODS: A retrospective chart review of 204 patients discharged from a tertiary hospital on dabigatran etexilate over a 12-month period. Creatinine clearance, using the Cockcroft-Gault equation, was used as the surrogate of renal function in the 86 patients where this was calculable. RESULTS: Prescribed dabigatran etexilate dose rates in relation to creatinine clearance and the manufacturer's guidelines were classified as 'standard', 'low' and 'high' in 47% (40/86), 49% (42/86) and 5% (4/86) of patients respectively. Co-prescribed drugs that potentially interact with dabigatran etexilate were present in 75% (154/204) of patients and included strong P-gp inhibitors (16%, 32/204), proton-pump inhibitors (46%, 94/204) and anti-platelet drugs (47%, 95/204). Co-prescription of strong P-gp inhibitors was associated with the prescription of 'low' dose rates relative to renal function (P = 0.025). CONCLUSIONS: Few patients were dosed excessively in relation to creatinine clearance. Around 50% was prescribed with 'low' dose rates in relation to creatinine clearance, which because of the association with co-prescription of strong P-gp inhibitors may be clinically appropriate. Most patients were co-prescribed with drugs that potentially interact with dabigatran etexilate.
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Benzimidazóis/administração & dosagem , Rim/fisiologia , Pró-Fármacos/administração & dosagem , Piridinas/administração & dosagem , Centros de Atenção Terciária , Adulto , Idoso , Idoso de 80 Anos ou mais , Benzimidazóis/metabolismo , Dabigatrana , Interações Medicamentosas/fisiologia , Feminino , Humanos , Rim/efeitos dos fármacos , Testes de Função Renal , Masculino , Pessoa de Meia-Idade , Pró-Fármacos/metabolismo , Piridinas/metabolismo , Estudos RetrospectivosRESUMO
BACKGROUND: Current Australian guidelines recommend initiating directed therapy of gentamicin if administration exceeds 48 h. Directed doses of gentamicin require the monitoring of plasma concentrations of gentamicin to determine the 24-h area under the time course of plasma gentamicin concentrations (AUC) and a dosage prediction program, for example TCIWorks or Aladdin. However, doses calculated by such programs have not been compared with an established program. AIM: To compare the directed dosage of gentamicin calculated by TCIWorks, Aladdin and an Excel-based program, with an established program, Abbottbase. METHODS: Peak and trough plasma concentrations after the first and second administered doses of gentamicin were available from three patient groups (n = 20-23) with varying creatinine clearances (<40, 40-80, >80 mL/min). The directed dose needed to produce 24-h AUC values of 80 mg.h/L was calculated using each program. RESULTS: There was a strong correlation between the directed doses predicted by each of the three programs compared with Abbottbase, following the first administered dose (r(2) > 0.97, P < 0.0001). The mean ratio (90% confidence intervals) of these directed doses of the gentamicin were: TCIWorks/Abbottbase 106% (105-107%), Aladdin/Abbottbase 102% (101-103%) and Excel/Abbottbase 108% (106-109%). The correlations and dose ratios were also similar when comparisons were made following the second administered dose. For each of the three renal function groups, all programs yielded similar directed doses. CONCLUSIONS: The four programs used in the calculation of directed doses of gentamicin yielded similar results. Any would be suitable for use in clinical practice.
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Antibacterianos/administração & dosagem , Antibacterianos/sangue , Gentamicinas/administração & dosagem , Gentamicinas/sangue , Guias de Prática Clínica como Assunto/normas , Software/normas , Adulto , Idoso , Idoso de 80 Anos ou mais , Estudos de Coortes , Bases de Dados Factuais/normas , Esquema de Medicação , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Valor Preditivo dos TestesRESUMO
Allelic loss at the short arm of chromosome 3 is one of the most common and earliest events in the pathogenesis of lung cancer, and is observed in more than 90% of small-cell lung cancers (SCLCs) and in 50-80% of non-small-cell lung cancers (NSCLCs). Frequent and early loss of heterozygosity and the presence of homozygous deletions suggested a critical role of the region 3p21.3 in tumorigenesis and a region of common homozygous deletion in 3p21.3 was narrowed to 120 kb (ref. 5). Several putative tumour-suppressor genes located at 3p21 have been characterized, but none of these genes appear to be altered in lung cancer. Here we describe the cloning and characterization of a human RAS effector homologue (RASSF1) located in the 120-kb region of minimal homozygous deletion. We identified three transcripts, A, B and C, derived from alternative splicing and promoter usage. The major transcripts A and C were expressed in all normal tissues. Transcript A was missing in all SCLC cell lines analysed and in several other cancer cell lines. Loss of expression was correlated with methylation of the CpG-island promoter sequence of RASSF1A. The promoter was highly methylated in 24 of 60 (40%) primary lung tumours, and 4 of 41 tumours analysed carried missense mutations. Re-expression of transcript A in lung carcinoma cells reduced colony formation, suppressed anchorage-independent growth and inhibited tumour formation in nude mice. These characteristics indicate a potential role for RASSF1A as a lung tumour suppressor gene.
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Carcinoma Pulmonar de Células não Pequenas/genética , Carcinoma de Células Pequenas/genética , Cromossomos Humanos Par 3 , Metilação de DNA , Regulação Neoplásica da Expressão Gênica , Genes Supressores de Tumor , Neoplasias Pulmonares/genética , Proteínas de Neoplasias/genética , Proteínas Supressoras de Tumor , Fator ral de Troca do Nucleotídeo Guanina/metabolismo , Proteínas ras/metabolismo , 5-Metilcitosina , Processamento Alternativo , Sequência de Aminoácidos , Animais , Sequência de Bases , Ilhas de CpG , Citosina/análogos & derivados , Citosina/metabolismo , DNA Complementar , Proteínas de Ligação a DNA/genética , Proteínas de Ligação a DNA/metabolismo , Células HT29 , Células HeLa , Humanos , Camundongos , Dados de Sequência Molecular , Mutação de Sentido Incorreto , Proteínas de Neoplasias/metabolismo , Proteínas de Ligação a RNA/genética , Proteínas de Ligação a RNA/metabolismo , Ratos , Fator de Transcrição Sp1/metabolismo , Proteína de Xeroderma Pigmentoso Grupo AAssuntos
Antitrombinas/efeitos adversos , Dabigatrana/efeitos adversos , Hemorragia/sangue , Hemorragia/induzido quimicamente , Tromboembolia/sangue , Tromboembolia/induzido quimicamente , Idoso , Testes de Coagulação Sanguínea/estatística & dados numéricos , Feminino , Hemorragia/diagnóstico , Humanos , Masculino , Pessoa de Meia-Idade , Tromboembolia/diagnósticoRESUMO
Prior experiments in explants of human lymphoid tissue have demonstrated that human immunodeficiency virus type 1 (HIV-1) productively infects diverse cellular targets including T cells and tissue macrophages. We sought to determine the specific contribution of macrophages and T cells to the overall viral burden within lymphoid tissue. To block infection of macrophages selectively while preserving infection of T cells, we used viruses deficient for viral protein R (Vpr) that exhibit profound replication defects in nondividing cells in vitro. We inoculated tonsil histocultures with matched pairs of congenic viruses that differed only by the presence of a wild-type or truncated vpr gene. Although these viruses exhibited no reduction in the infection or depletion of T cells, the ability of the Vpr-deficient R5 virus to infect tissue macrophages was severely impaired compared with matched wild-type R5 virus. Interestingly, the Vpr-deficient R5 virus also exhibited a 50% reduction in overall virus replication compared with its wild-type counterpart despite the fact that macrophages represent a small fraction of the potential targets of HIV-1 infection in these tissues. Collectively, these data highlight the importance of tissue macrophages in local viral burden and further implicate roles for CC chemokine receptor 5, macrophages, and Vpr in the life cycle and pathogenesis of HIV-1.
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Linfócitos T CD4-Positivos/virologia , Produtos do Gene vpr/fisiologia , HIV-1/fisiologia , Macrófagos/virologia , Carga Viral , Ciclo Celular , Humanos , Tecido Linfoide/virologia , Receptores CCR5/fisiologia , Produtos do Gene vpr do Vírus da Imunodeficiência HumanaRESUMO
OBJECTIVE: Plyometric training is widely used in conditioning, power training and in prevention and rehabilitation of injuries in some sports. This study sought to investigate the effect of a three-week plyometric training programme on jump performance and agility in Jamaican national netball players. METHOD: Eighteen national netballers participated in a Plyometric training programme. Subjects were evaluated using the Vertical Jump Test, the Broad Jump Test and the Illinois Agility Test prior to the start of the programme and at week 3. DATA ANALYSIS: The data were analysed using SPSS version 12 for Windows. A One-Sample Kolmogorov-Smirnov Test showed normal distribution of data and a paired samples t-test was used to determine whether the mean change in jump performance and agility was significant. RESULTS: All eighteen subjects completed the three weeks of training. Three subjects were shown to be outliers at week 3 and this resulted in data from 15 subjects being analysed. At the end of the three weeks, there were significant improvements in Vertical Jump Scores (p = 0.023), Broad Jump Scores (p = 0.002) and Agility scores (p = 0.045). CONCLUSION: Three weeks of Plyometric training can lead to significant improvements in jump performance and agility and should be integrated into the national training programme at intervals yet to be determined.
Assuntos
Técnicas de Exercício e de Movimento , Esportes , Adolescente , Adulto , Humanos , Jamaica , Adulto JovemRESUMO
BACKGROUND: Venous thromboembolism (VTE) is a significant problem in oncology patients. VTE prophylaxis is underutilized in hospitalized medical patients, but there are few data for the appropriateness and frequency of its use in the oncology subgroup. We aimed to document local practice. METHODS: A cross-sectional chart review of all hospitalized patients cared for by the Christchurch Hospital Oncology Service was carried out during two defined 4-week periods. Assessment for indications and contraindications to prophylactic anticoagulation was based on the 2004 American College of Chest Physicians evidence-based consensus guidelines. RESULTS: Of 113 admissions to the oncology service, 38 (33.6%) had indications for prophylactic anticoagulation. However, 23 of these also had contraindications, leaving only 15 (13%) admissions where prophylactic anticoagulation was deemed appropriate. Only one was appropriately given prophylactic anticoagulation. CONCLUSION: Only a minority of hospitalized oncology patients are appropriate for prophylactic anticoagulation. Where it is suitable, however, it is poorly utilized locally. Local promotion of VTE prophylaxis and further study of this subgroup of hospitalized medical patients may improve uptake of this practice and attenuate morbidity from VTE.
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Anticoagulantes/uso terapêutico , Neoplasias/complicações , Padrões de Prática Médica , Trombose Venosa/prevenção & controle , Adulto , Idoso , Idoso de 80 Anos ou mais , Comissão Para Atividades Profissionais e Hospitalares , Estudos Transversais , Feminino , Humanos , Masculino , Pessoa de Meia-IdadeRESUMO
PURPOSE: To compare the efficacy and safety of different modes of thromboembolic prophylaxis for elective total knee arthroplasty (TKA) in Asian patients. METHODS: 440 low-risk patients undergoing TKA were randomised into 4 equal groups: (1) no prophylaxis (control), (2) graduated compression stockings (GCS), (3) intermittent pneumatic compression (IPC), and (4) low-molecular-weight heparin (enoxaparin). Duplex ultrasonography was used as an assessment tool. RESULTS: The deep vein thrombosis point prevalence was highest in the control group (22%), which was significantly higher than in patients receiving IPC (8%, p=0.032) or enoxaparin (6%, p=0.001). One patient each in the control and GCS groups developed a non-fatal pulmonary embolism. Patients on enoxaparin received more blood transfusions and 2 of them had major bleeding complications. CONCLUSION: IPC is the preferred method of thromboprophylaxis for TKA in Asian patients.
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Artroplastia do Joelho/efeitos adversos , Povo Asiático , Enoxaparina/uso terapêutico , Fibrinolíticos/uso terapêutico , Dispositivos de Compressão Pneumática Intermitente , Meias de Compressão , Tromboembolia/prevenção & controle , Idoso , Idoso de 80 Anos ou mais , Feminino , Hong Kong , Humanos , Masculino , Pessoa de Meia-Idade , Tromboembolia/etnologia , Tromboembolia/etiologia , Resultado do TratamentoRESUMO
We report a newborn baby girl with acute dengue due to vertical transmission. A 31 year old factory worker of 38+ week gestation, gravida 5 para 3+1, developed acute dengue fever two days prior to delivery. She delivered a normal term baby girl by spontaneous vaginal delivery and recovered uneventfully without peripartum haemorrhage despite the presence of thrombocytopenia. The baby girl developed low grade fever on day four of post-natal life and except for the transient thrombocytopenia, also recovered uneventfully following three days of mild illness. The clinical diagnosis of acute dengue virus infection was confirmed by laboratory tests.