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1.
Clin Gastroenterol Hepatol ; 22(7): 1475-1486.e4, 2024 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-38369224

RESUMO

BACKGROUND AND AIMS: COVID-19 vaccination prevents severe disease in most patients with inflammatory bowel disease (IBD), but immunosuppressive medications can blunt serologic response. We followed adults with IBD for >1 year post-COVID-19 vaccination to describe factors associated with SARS-CoV-2 infection after vaccination, evaluate for a protective SARS-CoV-2 antibody level, characterize SARS-CoV-2 antibody persistence, and identify factors associated with humoral immune response durability. METHODS: Using a prospective cohort of COVID-19 immunized adults with IBD, we analyzed factors associated with SARS-CoV-2 infection after vaccination. We evaluated for an association between SARS-CoV-2 antibody level 12 weeks postvaccination and subsequent SARS-CoV-2 infection and assessed for a threshold of protection using receiver-operating characteristic curve analysis. We then conducted a separate analysis evaluating factors associated with persistence of SARS-CoV-2 antibodies 52 weeks postimmunization. RESULTS: Almost half (43%) of 1869 participants developed COVID-19 after vaccination, but most infections were mild, and <1% required hospitalization. Older age and corticosteroid use were associated with a decreased risk of SARS-CoV-2 infection postvaccination (50-59 years of age vs 18-29 years of age: adjusted hazard ratio, 0.57; 95% confidence interval, 0.44-0.74; steroid users vs nonusers: adjusted hazard ratio, 0.58; 95% confidence interval, 0.39-0.87). Most (98%) participants had detectable antibody levels at 52 weeks postvaccination. Antibody levels at 12 weeks and number of vaccine doses were positively associated with higher antibody levels at 52 weeks, while anti-tumor necrosis factor α therapy was negatively associated. CONCLUSIONS: COVID-19 vaccination generates an effective and durable protective response for the vast majority of adults with IBD, including vulnerable populations such as corticosteroid users and older individuals. Patients with IBD benefit from COVID-19 booster vaccination.


Assuntos
Anticorpos Antivirais , Vacinas contra COVID-19 , COVID-19 , Doenças Inflamatórias Intestinais , SARS-CoV-2 , Humanos , COVID-19/prevenção & controle , COVID-19/imunologia , Masculino , Feminino , Pessoa de Meia-Idade , Doenças Inflamatórias Intestinais/imunologia , Adulto , Vacinas contra COVID-19/administração & dosagem , Vacinas contra COVID-19/imunologia , Estudos Prospectivos , Anticorpos Antivirais/sangue , SARS-CoV-2/imunologia , Vacinação , Idoso , Adulto Jovem
2.
J Oral Pathol Med ; 53(7): 434-443, 2024 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-38825828

RESUMO

BACKGROUND: Despite the oral cavity being readily accessible, oral cancer (OC) remains a significant burden. The objective of this study is to develop a DNA ploidy-based cytology test for early detection of high-risk oral lesions. METHODS: This retrospective study was conducted using 569 oral brushing samples collected from 95 normal and 474 clinically abnormal mucosa with biopsy diagnosis of reactive, low-grade or high-grade precancer or cancers. Brushing cells were processed to characterize DNA ploidy. A two-step DNA ploidy-based algorithm, the DNA ploidy oral cytology (DOC) test, was developed using a training set, and verified in test and validation sets to differentiate high-grade lesions (HGLs) from normal. The prognostic value of the test was evaluated by an independent outcome cohort, including progressed and non-progressing normal, reactive and low-grade lesions. Classification performance was assessed by accuracy, sensitivity, and specificity, while the prognostic value was evaluated by using the Cox proportional hazards analysis on 3-year progression-free survival (PFS). RESULTS: The developed DOC test exhibited high accuracy for detecting HGLs in the test and validation sets, with a sensitivity of 0.97 and 0.96, respectively. Its application to the Outcome cohort demonstrated significant prognostic value for 3-year PFS (log rank, p < 0.001). Multivariate analysis showed that high-grade pathology was the only variable explaining positive DOC test, not age, smoking, or lesional site. CONCLUSION: Clinical implementation of the DOC test could provide an effective screening method for detecting HGLs for biopsy and lesions at risk of progression.


Assuntos
Progressão da Doença , Neoplasias Bucais , Ploidias , Adulto , Idoso , Idoso de 80 Anos ou mais , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Algoritmos , Citodiagnóstico/métodos , Detecção Precoce de Câncer , Neoplasias Bucais/patologia , Neoplasias Bucais/genética , Lesões Pré-Cancerosas/patologia , Lesões Pré-Cancerosas/genética , Prognóstico , Estudos Retrospectivos , Sensibilidade e Especificidade
3.
Am J Gastroenterol ; 118(1): 129-137, 2023 01 01.
Artigo em Inglês | MEDLINE | ID: mdl-36114773

RESUMO

INTRODUCTION: Children with inflammatory bowel disease (IBD) may respond differently to COVID-19 immunization as compared with healthy children or adults with IBD. Those younger than 12 years receive a lower vaccine dose than adults. We sought to describe the safety and humoral immune response to COVID-19 vaccine in children with IBD. METHODS: We recruited children with IBD, ages 5-17 years, who received ≥ 2 doses of the BNT162b2 vaccine by a direct-to-patient outreach and at select sites. Patient demographics, IBD characteristics, medication use, and vaccine adverse events were collected. A subset of participants had quantitative measurement of anti-receptor binding domain IgG antibodies after 2-part immunization. RESULTS: Our study population included 280 participants. Only 1 participant required an ED visit or hospitalization because of an adverse event. Of 99 participants who underwent anti-receptor binding domain IgG antibody measurement, 98 had a detectable antibody, with a mean antibody level of 43.0 µg/mL (SD 67) and a median of 22 µg/mL (interquartile range 12-38). In adjusted analyses, older age ( P = 0.028) and antitumor necrosis factor monotherapy compared with immunomodulators alone ( P = 0.005) were associated with a decreased antibody level. Antibody response in patients treated with antitumor necrosis factor combination vs monotherapy was numerically lower but not significant. DISCUSSION: Humoral immune response to COVID-19 immunization in children with IBD was robust, despite a high proportion of this pediatric cohort being treated with immunosuppressive agents. Severe vaccine-related AEs were rare. Overall, these findings provide a high level of reassurance that pediatric patients with IBD respond well and safely to SARS-CoV-2 vaccination.


Assuntos
Vacinas contra COVID-19 , COVID-19 , Doenças Inflamatórias Intestinais , Adolescente , Adulto , Criança , Pré-Escolar , Humanos , Anticorpos , Anticorpos Antivirais , Vacina BNT162 , COVID-19/prevenção & controle , Vacinas contra COVID-19/efeitos adversos , Imunidade Humoral , Doenças Inflamatórias Intestinais/tratamento farmacológico , Necrose , SARS-CoV-2 , Vacinação
4.
Am J Gastroenterol ; 117(3): 462-469, 2022 03 01.
Artigo em Inglês | MEDLINE | ID: mdl-35029167

RESUMO

INTRODUCTION: Although an additional coronavirus disease 2019 vaccine dose for immunocompromised persons has been recommended in some countries, further data to guide vaccination strategies for patients with inflammatory bowel disease (IBD) are urgently needed. We sought to identify factors affecting initial humoral immune response to severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) vaccines among patients with IBD. METHODS: In this prospective cohort of SARS-CoV-2 immunized patients with IBD, we evaluated associations between participant age, sex, vaccine type, medication use, and the presence of a detectable antireceptor binding domain antibody and quantitative antibody level. RESULTS: In total, 1,909 participants were included (1,123, 692, and 94 received BNT162b2, mRNA-1273, and Ad26.COV2.S, respectively) of whom 96% achieved a positive antibody response. On multivariable analysis, factors associated with lack of antibody response were older age (P = 0.043), BNT162b2 vs mRNA-1273 (odds ratio [OR] 2.1, 95% confidence interval [CI] 1.0-3.9), and combination therapy with anti-TNF and 6MP, azathioprine, or methotrexate (OR 4.2, 95% CI 2.4-7.3). The use of 5-aminosalicylate or sulfasalazine (OR 0.3, 95% CI 0.1-0.8) and ustekinumab (OR 0.2, 95% CI 0.05-0.8) was associated with decreased odds of lacking antibody response. DISCUSSION: Most patients with IBD mount an initial response to SARS-CoV-2 vaccination; however, older patients and those treated with anti-TNF and immunomodulator have blunted responses and may benefit the most from an additional vaccine dose. Patients treated with other classes of immunosuppressive medications have more robust initial immune responses to vaccination. These data should inform key decisions about patient selection for additional coronavirus disease 2019 vaccine doses in patients with IBD.


Assuntos
Vacina de mRNA-1273 contra 2019-nCoV , Ad26COVS1 , Vacina BNT162 , COVID-19/prevenção & controle , Imunidade Humoral/fisiologia , Doenças Inflamatórias Intestinais/imunologia , Adulto , Fatores Etários , Estudos de Coortes , Feminino , Humanos , Fatores Imunológicos/uso terapêutico , Doenças Inflamatórias Intestinais/tratamento farmacológico , Masculino , Pessoa de Meia-Idade , Razão de Chances , Fatores de Risco , Fatores Sexuais , Inibidores do Fator de Necrose Tumoral/uso terapêutico
5.
Cogn Behav Neurol ; 35(3): 155-168, 2022 09 01.
Artigo em Inglês | MEDLINE | ID: mdl-35507449

RESUMO

BACKGROUND: Abbreviated neurocognitive tests offer a practical alternative to full-length versions but often lack clear interpretive guidelines, thereby limiting their clinical utility. OBJECTIVE: To replicate validity cutoffs for the Boston Naming Test-Short Form (BNT-15) and to introduce a clinical classification system for the BNT-15 as a measure of object-naming skills. METHOD: We collected data from 43 university students and 46 clinical patients. Classification accuracy was computed against psychometrically defined criterion groups. Clinical classification ranges were developed using a z -score transformation. RESULTS: Previously suggested validity cutoffs (≤11 and ≤12) produced comparable classification accuracy among the university students. However, a more conservative cutoff (≤10) was needed with the clinical patients to contain the false-positive rate (0.20-0.38 sensitivity at 0.92-0.96 specificity). As a measure of cognitive ability, a perfect BNT-15 score suggests above average performance; ≤11 suggests clinically significant deficits. Demographically adjusted prorated BNT-15 T-scores correlated strongly (0.86) with the newly developed z -scores. CONCLUSION: Given its brevity (<5 minutes), ease of administration and scoring, the BNT-15 can function as a useful and cost-effective screening measure for both object-naming/English proficiency and performance validity. The proposed clinical classification ranges provide useful guidelines for practitioners.


Assuntos
Testes Neuropsicológicos , Humanos , Testes de Linguagem
6.
J Oral Pathol Med ; 50(5): 502-509, 2021 May.
Artigo em Inglês | MEDLINE | ID: mdl-33275794

RESUMO

BACKGROUND: DNA-image cytometry (DNA-ICM) is able to detect gross alterations of cellular DNA-content representing aneuploidy, a biomarker of malignancy. A Health Canada-approved DNA-ICM system, ClearCyte® in combination with a cytopathologist's review, has demonstrated high sensitivity (89%) and specificity (97%) in identifying high-grade oral lesions. The study objective was to create an improved automated algorithm (iClearcyte) and test its robustness in differentiating high grade from benign reactive oral lesions without a cytopathologist's input. METHODS: A set of 214 oral brushing samples of oral cancer (n = 92), severe dysplasia (n = 20), reactive lesions (n = 52), and normal samples (n = 50) were spun down onto slides and stained using Feulgen-Thionin reaction. Following ClearCyte® scan, nuclear features were calculated, and nuclei categorized into "diploid," "hyperdiploid," "tetraploid," and "aneuploid" DNA ploidy groups by the ClearCyte® software. The samples were randomized into training and test sets (70:30) based on patient's age, sex, tobacco use, and lesion site risk. The training set was used to create a new algorithm which was then validated using the remaining samples in the test set, where sensitivity, specificity, positive predictive value (PPV), and negative predictive value (NPV) were calculated. RESULTS: The proposed iClearCyte algorithm (>1 "aneuploid" cell or ≥ 1.7% combined "hyperdiploid" and "tetraploid" nuclei frequency) identified high-grade samples with sensitivity, specificity, PPV, and NPV of 100.0%, 86.7%, 89.7%, and 100.0%, respectively, in the test set. CONCLUSION: The iClearCyte test has potential to serve as a robust non-invasive automated oral cancer screening tool promoting early oral cancer detection and decreasing the number of unnecessary invasive biopsies.


Assuntos
Citometria por Imagem , Neoplasias Bucais , Algoritmos , Aneuploidia , Canadá , DNA , DNA de Neoplasias , Humanos , Neoplasias Bucais/diagnóstico , Neoplasias Bucais/genética
7.
Glob Chang Biol ; 26(12): 6805-6812, 2020 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-33021041

RESUMO

Interactions among species are likely to change geographically due to climate-driven species range shifts and in intensity due to physiological responses to increasing temperatures. Marine ectotherms experience temperatures closer to their upper thermal limits due to the paucity of temporary thermal refugia compared to those available to terrestrial organisms. Thermal limits of marine ectotherms also vary among species and trophic levels, making their trophic interactions more prone to changes as oceans warm. We assessed how temperature affects reef fish trophic interactions in the Western Atlantic and modeled projections of changes in fish occurrence, biomass, and feeding intensity across latitudes due to climate change. Under ocean warming, tropical reefs will experience diminished trophic interactions, particularly herbivory and invertivory, potentially reinforcing algal dominance in this region. Tropicalization events are more likely to occur in the northern hemisphere, where feeding by tropical herbivores is predicted to expand from the northern Caribbean to extratropical reefs. Conversely, feeding by omnivores is predicted to decrease in this area with minor increases in the Caribbean and southern Brazil. Feeding by invertivores declines across all latitudes in future predictions, jeopardizing a critical trophic link. Most changes are predicted to occur by 2050 and can significantly affect ecosystem functioning, causing dominance shifts and the rise of novel ecosystems.


Assuntos
Mudança Climática , Ecossistema , Animais , Brasil , Região do Caribe , Oceanos e Mares
8.
Nature ; 502(7471): 317-20, 2013 Oct 17.
Artigo em Inglês | MEDLINE | ID: mdl-24132288

RESUMO

The US National Cancer Institute (NCI), in collaboration with scientists representing multiple areas of expertise relevant to 'omics'-based test development, has developed a checklist of criteria that can be used to determine the readiness of omics-based tests for guiding patient care in clinical trials. The checklist criteria cover issues relating to specimens, assays, mathematical modelling, clinical trial design, and ethical, legal and regulatory aspects. Funding bodies and journals are encouraged to consider the checklist, which they may find useful for assessing study quality and evidence strength. The checklist will be used to evaluate proposals for NCI-sponsored clinical trials in which omics tests will be used to guide therapy.


Assuntos
Ensaios Clínicos como Assunto/métodos , Genômica , Projetos de Pesquisa , Lista de Checagem , Ensaios Clínicos como Assunto/economia , Ensaios Clínicos como Assunto/ética , Ensaios Clínicos como Assunto/normas , Estudos de Avaliação como Assunto , Genômica/ética , Humanos , Modelos Biológicos , National Cancer Institute (U.S.)/economia , Medicina de Precisão/ética , Medicina de Precisão/métodos , Medicina de Precisão/normas , Projetos de Pesquisa/normas , Manejo de Espécimes , Estados Unidos
10.
Clin Exp Immunol ; 191(2): 180-188, 2018 02.
Artigo em Inglês | MEDLINE | ID: mdl-28960271

RESUMO

Innate lymphocyte populations, such as innate lymphoid cells (ILCs), γδ T cells, invariant natural killer T (iNK T) cells and mucosal-associated invariant T (MAIT) cells are emerging as important effectors of innate immunity and are involved in various inflammatory and autoimmune diseases. The aim of this study was to assess the frequencies and absolute numbers of innate lymphocytes as well as conventional lymphocytes and monocytes in peripheral blood from a cohort of anti-neutrophil cytoplasm autoantibody (ANCA)-associated vasculitis (AAV) patients. Thirty-eight AAV patients and 24 healthy and disease controls were included in the study. Patients with AAV were sampled both with and without immunosuppressive treatment, and in the setting of both active disease and remission. The frequencies of MAIT and ILC2 cells were significantly lower in patients with AAV and in the disease control group compared to healthy controls. These reductions in the AAV patients remained during remission. B cell count and frequencies were significantly lower in AAV in remission compared to patients with active disease and disease controls. Despite the strong T helper type 2 (Th) preponderance of eosinophilic granulomatosis with polyangiitis, we did not observe increased ILC2 frequency in this cohort of patients. The frequencies of other cell types were similar in all groups studied. Reductions in circulating ILC2 and MAIT cells reported previously in patients with AAV are not specific for AAV, but are more likely to be due to non-specific manifestations of renal impairment and chronic illness. Reduction in B cell numbers in AAV patients experiencing remission is probably therapy-related.


Assuntos
Vasculite Associada a Anticorpo Anticitoplasma de Neutrófilos/imunologia , Linfócitos B/imunologia , Rim/patologia , Subpopulações de Linfócitos/imunologia , Células T Invariantes Associadas à Mucosa/imunologia , Células T Matadoras Naturais/imunologia , Linfócitos T/imunologia , Adulto , Idoso , Idoso de 80 Anos ou mais , Vasculite Associada a Anticorpo Anticitoplasma de Neutrófilos/tratamento farmacológico , Estudos de Coortes , Feminino , Humanos , Imunidade Inata , Terapia de Imunossupressão , Contagem de Linfócitos , Masculino , Microcirculação , Pessoa de Meia-Idade , Receptores de Antígenos de Linfócitos T gama-delta/metabolismo
11.
J Oral Pathol Med ; 47(10): 945-953, 2018 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-30191616

RESUMO

BACKGROUND: There is increasing evidence that high-risk human papillomavirus plays significant role in oropharyngeal cancer; however, there is lack of knowledge on the interplay between the virus and its downstream-related molecules and their possible prognostic values. The objectives of the study are to better understand the interplay of the HR-HPV and its associated downstream molecules and to evaluate potential biomarkers for patient outcomes. METHODS: We conducted a retrospective study with available formalin-fixed, paraffin-embedded tissue from 244 oropharyngeal cancer patients that received curative radiotherapy or concurrent chemoradiotherapy from 2000 to 2008. In addition to chart review, we performed HPV DNA and RNA in situ hybridization and immunohistochemistry for p53, the retinoblastoma protein, p16, and cyclin D1 analysis. Cox proportional hazard and Kaplan-Meier survival analysis were used to determine the prognostic markers for clinical outcomes. RESULTS: Patients averaged 57.3 ± 9.4 year-old and were mostly males (76.2%) and ever-smokers (76.2%). All patients received curative radiotherapy, and 44.3% received concurrent chemoradiotherapy. We detected the human papillomavirus in 77.9% of study patients. Ever-smokers, more advanced tumor stage, and receiving radiotherapy only had poorer 5-year overall survival, disease-specific survival, and loco-regional recurrence. Cases with positive human papillomavirus and p53 overexpression had poorer disease-specific survival. Cases without human papillomavirus, but cyclin D1 overexpression, were associated with poorer 5-year overall survival. CONCLUSIONS: Our data suggest that additional p53 and cyclin D1 testing may benefit oropharyngeal cancer patients with known human papillomavirus status.


Assuntos
Ciclina D1/genética , Expressão Gênica , Neoplasias Orofaríngeas/genética , Neoplasias Orofaríngeas/terapia , Neoplasias Orofaríngeas/virologia , Papillomaviridae/isolamento & purificação , Proteína Supressora de Tumor p53/genética , Idoso , Quimiorradioterapia , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Neoplasias Orofaríngeas/mortalidade , Prognóstico , Radioterapia , Estudos Retrospectivos , Taxa de Sobrevida
12.
Brain Inj ; 32(7): 832-842, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-29676934

RESUMO

OBJECTIVE: To determine cognitive outcomes in older adults (≥ 50 years old) having sustained a traumatic brain injury (TBI) using meta-analysis. METHODS: MedLine and PsycInfo databases were searched to identify studies comparing neuropsychological profiles in older adults with and without a history of TBI across various injury severities and times post-injury. Ten studies (n = 717) meeting inclusion criteria were identified. Tests were divided into functional modalities and average effect sizes were calculated across studies on a test-by-test basis. RESULTS: Older adults post-TBI performed worse than the non-TBI group on all cognitive outcomes evaluated (d = -0.34 to -0.75), with naming and vocabulary having the largest effect, M -0.75 (95% CI, -0.98 to -0.52). CONCLUSIONS: TBI in older adults leads to moderate deficits on all measured cognitive abilities, with the largest effects observed in naming and vocabulary abilities. The findings pertain broadly to TBI of mixed injury severities and times post-injury, although the majority of participants sustained TBIs of mild uncomplicated severity within one-year post-injury. Future research must address methodological limitations such as variability in reporting injury information, inconsistency in defining older age, and lack of orthopaedic comparison groups in order to permit more nuanced conclusions for this population.


Assuntos
Envelhecimento/fisiologia , Lesões Encefálicas Traumáticas/complicações , Transtornos Cognitivos/etiologia , Humanos , Testes Neuropsicológicos
13.
Fam Process ; 57(2): 399-414, 2018 06.
Artigo em Inglês | MEDLINE | ID: mdl-28560725

RESUMO

The treatment efficacy of multiple family therapy (MFT) for Chinese families of children with attention deficit hyperactivity disorder (ADHD) has not been studied in the past. In this paper, the effect of MFT on different aspects of the lives of the parents in the experimental group (n = 61) was compared with the effect of only the psychoeducational talks on parents in the control group (n = 53). The results of a MANOVA have shown that by the time they reached the posttreatment phase, the parents who had completed the full 42 hours of the MFT program perceived their children's ADHD symptoms as being less serious and less pathological than they had originally thought compared to the parents in the control group. The effect of MFT on parent-child relationships, parenting stress, parental efficacy, hope, and perceived social support was statistically insignificant. Contributions and limitations of our study are discussed.


Assuntos
Transtorno do Deficit de Atenção com Hiperatividade/terapia , Educação não Profissionalizante/métodos , Terapia Familiar/métodos , Poder Familiar/psicologia , Pais/psicologia , Adulto , Transtorno do Deficit de Atenção com Hiperatividade/psicologia , China , Feminino , Humanos , Masculino , Relações Pais-Filho , Apoio Social , Resultado do Tratamento
14.
Int J Obes (Lond) ; 41(10): 1503-1509, 2017 10.
Artigo em Inglês | MEDLINE | ID: mdl-28566749

RESUMO

OBJECTIVE: To assess longitudinal associations between screen-based media use (television (TV) and computer hours, having a TV in the bedroom) and body fatness among UK children. METHODS: Participants were 12 556 children from the UK Millennium Cohort Study who were followed from age 7 to age 11 years. Associations were assessed between screen-based media use and the following outcomes: body mass index (BMI), fat mass index (FMI), and overweight. RESULTS: In fully adjusted models, having a bedroom TV at age 7 years was associated with significantly higher BMI and FMI (excess BMI for boys=0.29, 95% confidence interval (CI) 0.06-0.52; excess BMI for girls=0.57, 95% CI 0.31-0.84; excess FMI for boys=0.20, 95% CI 0.04-0.37; excess FMI for girls=0.39, 95% CI 0.21-0.57) and increased risk of being overweight (relative risk (RR) for boys=1.21, 95% CI 1.07-1.36; RR for girls=1.31, 95% CI 1.15-1.48) at age 11 years, compared with having no bedroom TV. Hours spent watching TV or digital versatile disks were associated with increased risk of overweight among girls only. Computer use at age 7 years was not related to later body fatness for either gender. CONCLUSION: Having a TV in the child's bedroom was an independent risk factor for overweight and increased body fatness in this nationally representative sample of UK children. Childhood obesity prevention strategies should consider TVs in children's bedrooms as a risk factor for obesity.


Assuntos
Obesidade Infantil/epidemiologia , Comportamento Sedentário , Televisão/estatística & dados numéricos , Índice de Massa Corporal , Criança , Comportamento Infantil/psicologia , Computadores/estatística & dados numéricos , Comportamento Alimentar , Feminino , Humanos , Estudos Longitudinais , Masculino , Obesidade Infantil/fisiopatologia , Obesidade Infantil/psicologia , Estudos Prospectivos , Fatores de Risco , Privação do Sono/epidemiologia , Privação do Sono/fisiopatologia , Meio Social , Reino Unido/epidemiologia
15.
Int J Obes (Lond) ; 41(10): 1459-1466, 2017 10.
Artigo em Inglês | MEDLINE | ID: mdl-28435162

RESUMO

OBJECTIVE: To examine, in a population-based cohort of 3-year-old children, the association between self-regulation and exposure to the household routines of regular bedtime, regular mealtime and limits on watching television/video, and to determine whether self-regulation and these routines predict the risk of obesity at age 11. METHODS: Analyses included 10 955 children in the nationally representative UK Millennium Cohort Study. When children were age 3, parents reported whether children had a regular bedtime and mealtime, and the amount of television/video watched. Emotional and cognitive self-regulation at age 3 were assessed by parent-report with the Child Social Behaviour Questionnaire. Children's height and weight were measured at age 11 and obesity was defined using the International Obesity Task Force (IOTF) criteria. RESULTS: At age 3, 41% of children always had a regular bedtime, 47% always had a regular mealtime and 23% were limited to ⩽1 h television/video daily. At age 11, 6.2% of children were obese. All three household routines were significantly associated with better emotional self-regulation, but not better cognitive self-regulation. In a multi-variable logistic regression model, including emotional and cognitive self-regulation, all routines and controlling for sociodemographic covariates, a 1-unit difference in emotional self-regulation at age 3 was associated with an OR (95% CI) for obesity of 1.38 (1.11, 1.71) at age 11, and inconsistent bedtimes with an OR (95% CI) for obesity of 1.87 (1.39, 2.51) at age 11. There was no evidence that emotional self-regulation mediated the relationship between regular bedtimes and later obesity. Cognitive self-regulation was not associated with later obesity. CONCLUSIONS: Three-year-old children who had regular bedtimes, mealtimes and limits on their television/video time had better emotional self-regulation. Lack of a regular bedtime and poorer emotional self-regulation at age 3 were independent predictors of obesity at age 11.


Assuntos
Comportamento Infantil , Educação Infantil , Estilo de Vida , Pais , Obesidade Infantil/epidemiologia , Autocontrole , Criança , Pré-Escolar , Exercício Físico , Características da Família , Comportamento Alimentar , Feminino , Humanos , Modelos Logísticos , Estudos Longitudinais , Masculino , Pais/educação , Obesidade Infantil/etiologia , Prevalência , Estudos Prospectivos , Comportamento Sedentário , Sono , Comportamento Social , Televisão , Fatores de Tempo , Reino Unido/epidemiologia
16.
Eur J Oral Sci ; 125(1): 49-54, 2017 02.
Artigo em Inglês | MEDLINE | ID: mdl-28035689

RESUMO

This study assessed and compared oral health and oral-health behaviours among children with and without attention deficit hyperactivity disorder (ADHD). The study included 31 children, 12-18 yr of age, with ADHD and 31 age- and gender-matched children without ADHD. Clinical data were recorded by a trained and calibrated examiner for caries, traumatic dental injuries, periodontal health, tooth wear, and salivary function. A questionnaire was also given to parents or caregivers about the oral health habits and behaviours of these children. Data were compared using Mann-Whitney U-tests and chi-square tests. No significant differences were found between children, with or without ADHD, in caries extent or prevalence, dental trauma prevalence, prevalence of periodontal disease or plaque, tooth wear, or unstimulated salivary flow. Children with ADHD had a significantly higher percentage of sites with gingival bleeding, as well as a higher frequency of parent-reported dislike of dentists, bruxism, history of assisted toothbrushing, and toothbrushing duration <1 min. They also had higher attendance at government dental clinics. The findings indicate that children with ADHD have poorer oral hygiene and more adverse oral-health attitudes and behaviours than do children without ADHD.


Assuntos
Transtorno do Deficit de Atenção com Hiperatividade , Saúde Bucal , Adolescente , Estudos de Casos e Controles , Criança , China , Demografia , Feminino , Humanos , Masculino
17.
Phytother Res ; 31(11): 1757-1764, 2017 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-28833752

RESUMO

Acori Tatarinowii Rhizoma (ATR), the rhizome of Acorus tatarinowii Schott, is a common traditional Chinese medicine being used clinically for mental disorder. However, other Acorus species herbs are all having the same Chinese name 'Chang Pu', making the confusion in herbal market. Acori Graminei Rhizoma (AGR) and Acori Calami Rhizoma (ACR) are common adulterants of ATR. Here, we aim to provide a comparative analysis between ATR, AGR, and ACR in potentiating neuronal differentiation. Volatile oil, derived from Acorus species, was applied onto cultured PC12 cells, and various parameters were determined: (i) transcriptional activation of neurofilament promoters was determined by the promoter-driven luciferase activity assay; (ii) the neurite outgrowth of PC12 cells was captured and measured; and (iii) the neurofilament expression and its underlying mechanism were analyzed by western blotting. The co-treatment of ATR, AGR, or ACR volatile oil with low concentration of nerve growth factor (NGF) could potentiate the NGF-induced neuronal differentiation in cultured PC12 cells. In addition, application of protein kinase A inhibitor H89 in cultures blocked the induction of neurofilament. Among these three Acorus species, ATR volatile oil showed the highest NGF-induced induction in neurite outgrowth and neurofilament expression, as compared with that of AGR and ACR. Copyright © 2017 John Wiley & Sons, Ltd.


Assuntos
Acorus/química , Diferenciação Celular/efeitos dos fármacos , Medicamentos de Ervas Chinesas/farmacologia , Óleos Voláteis/farmacologia , Rizoma/química , Animais , Filamentos Intermediários/efeitos dos fármacos , Neuritos/efeitos dos fármacos , Células PC12 , Ratos
18.
Hong Kong Med J ; 22(2): 98-105, 2016 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-26980451

RESUMO

INTRODUCTION: Local data on the occurrence of motor problems in children with attention deficit hyperactivity disorder are not available but an understanding of this important issue may enable better planning of medical services. We aimed to determine the prevalence of motor problems in children with attention deficit hyperactivity disorder in a local population. METHODS: In this descriptive cross-sectional study, children aged 6 to 9 years diagnosed with attention deficit hyperactivity disorder over a period of 6 months from 1 July to 31 December 2011 were recruited from the Joint Paediatric and Child Psychiatric ADHD Program in New Territories East Cluster in Hong Kong. Movement Assessment Battery for Children and Developmental Coordination Disorder Questionnaire-Chinese version were used to determine the presence of motor problems. RESULTS: Data from 95 participants were included in the final analysis. The number of children who had no, borderline, or definite motor problems was 63, 15, and 17, respectively. It is estimated that up to one third of local children with attention deficit hyperactivity disorder might have developmental coordination disorder. CONCLUSIONS: Motor problems are common in local children with attention deficit hyperactivity disorder and figures are comparable with those from other parts of the world. Despite the various limitations of this study, the magnitude of the problem should not be overlooked.


Assuntos
Transtorno do Deficit de Atenção com Hiperatividade/complicações , Transtornos das Habilidades Motoras/epidemiologia , Transtorno do Deficit de Atenção com Hiperatividade/fisiopatologia , Criança , Estudos Transversais , Feminino , Hong Kong , Humanos , Masculino , Prevalência , Inquéritos e Questionários
19.
Int J Obes (Lond) ; 39(3): 520-9, 2015 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-25219529

RESUMO

OBJECTIVE: Racial/ethnic patterning in the risk of obesity and overweight has been observed in early childhood; however, little research has compared these disparities between the United Kingdom (UK) and United States (US) using detailed ethnic classifications. We use comparable nationally representative cohort studies to examine racial/ethnic disparities in mean body mass index (BMI) and in the odds of obesity/overweight in the UK and US. The contribution of sociodemographic, cultural and family routine factors are assessed. METHODS: Data on BMI, obesity and overweight in 5-year-old children from the MCS (Millennium Cohort Study) and ECLS-B (Early Childhood Longitudinal Study, Birth Cohort) were examined. We investigated race/ethnic disparities in mean BMI and in the odds of obesity and overweight, as compared to normal weight. We assessed the independent contribution of sociodemographic, cultural and family routine factors to observed disparities. RESULTS: In the UK, after adjustment for sociodemographic, cultural and family routine factors and maternal BMI, we found Black Caribbean children to have higher odds ratio (OR=1.7, confidence interval (CI)=1.1-2.6), Pakistani children to have lower odds of obesity (OR=0.60, CI=0.37-0.96) and Black African children were more likely to be overweight (OR=1.40, CI=1.04-1.88). In the US, in fully adjusted models, there were no race/ethnic disparities in children's odds of obesity and overweight. CONCLUSION: Disparities for Bangladeshi children in the UK and Mexican, other Hispanic and American Indian children in the US can be explained by socioeconomic disadvantage, whereas a range of cultural and family characteristics partially explain disparities for other groups in the UK. Future public health initiatives focused on reducing risk of overweight and obesity should consider the diverse socioeconomic and cultural profiles of all race/ethnic groups.


Assuntos
Disparidades nos Níveis de Saúde , Hispânico ou Latino/estatística & dados numéricos , Indígenas Norte-Americanos/estatística & dados numéricos , Obesidade Infantil/etnologia , Fatores Etários , Bangladesh/etnologia , Índice de Massa Corporal , Região do Caribe/etnologia , Criança , Pré-Escolar , Estudos Transversais , Feminino , Humanos , Estudos Longitudinais , Masculino , Americanos Mexicanos/estatística & dados numéricos , Razão de Chances , Obesidade Infantil/epidemiologia , Obesidade Infantil/prevenção & controle , Fatores de Risco , Fatores Socioeconômicos , Reino Unido/epidemiologia , Estados Unidos/epidemiologia
20.
Int J Geriatr Psychiatry ; 30(8): 851-6, 2015 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-25363507

RESUMO

OBJECTIVE: Little is known about the use of electroconvulsive therapy (ECT) in older Chinese psychiatric patients. This study examined the frequency of ECT and the demographic and clinical correlates in older psychiatric patients hospitalized in a large psychiatric institution in Beijing, China. METHODS: This was a retrospective chart review of 2339 inpatients aged 60 years and older treated over a period of 8 years (2007-2013) in a university-affiliated psychiatric institution in Beijing. Sociodemographic and clinical data were collected from the electronic chart management system for discharged patients. RESULTS: The rate of ECT use was 28.1% in the whole sample; 37.9% in those with bipolar disorders, 43.6% in major depression, 21.2% in schizophrenia, and 10.7% in other diagnoses. ECT ("ECT group") was associated with 60-65-year age group, high risk for suicide and low risk for falls at the time of admission, use of mood stabilizers and antidepressants, lack of health insurance, and having major medical conditions and diagnosis of major depression. The above significant correlates explained 24.9% of the variance of ECT use (p < 0.001). CONCLUSIONS: In a major psychiatric hospital in China, the use of ECT was common among older patients. ECT use in older patients treated in other clinical settings warrants further investigations.


Assuntos
Eletroconvulsoterapia/estatística & dados numéricos , Transtornos Mentais/terapia , Acidentes por Quedas/estatística & dados numéricos , Fatores Etários , Idoso , Povo Asiático , Transtorno Bipolar/terapia , China , Feminino , Humanos , Seguro Saúde/estatística & dados numéricos , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Fatores Socioeconômicos , Suicídio/estatística & dados numéricos
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