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The Puerto Rico (PR) Young Adults' Stress, Contextual, Behavioral & Cardiometabolic Risk Study (PR-OUTLOOK) is investigating overall and component-specific cardiovascular health (CVH) and cardiovascular disease (CVD) risk factors in a sample of young (age 18-29) Puerto Rican adults in PR (target n=3,000) and examining relationships between individual-, family/social- and neighborhood-level stress and resilience factors and CVH and CVD risk factors. The study is conducting standardized measurements of CVH and CVD risk factors and demographic, behavioral, psychosocial, neighborhood, and contextual variables and establishing a biorepository of blood, saliva, urine, stool, and hair samples. The assessment methods are aligned with other National Heart, Lung, and Blood Institute funded studies: the Puerto Rico Observational Study of Psychosocial, Environmental, and Chronic Disease Trends (PROSPECT) of adults 30-75 years, the Hispanic Community Health Study/Study of Latinos (HCHS/SOL), the Boston Puerto Rican Health Study (BPRHS), and the Coronary Artery Risk Development in Young Adults (CARDIA). PR-OUTLOOK data and its biorepository will facilitate future longitudinal studies of the temporality of associations between stress and resilient factors and CVH and CVD risk factors among young Puerto Ricans, with remarkable potential for advancing the scientific understanding of these conditions in a high-risk but understudied young population.

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PURPOSE: Emerging evidence suggests that vaginal micro-environment disorder is closely related to the development of cervical lesions. Low-grade cervical intraepithelial neoplasia (CIN1), as an early stage of cervical lesions, exhibits a high risk of progressing to high-grade lesions or even cervical cancer. However, the effect of vaginal micro-environment on the malignant prognosis of CIN1 remains uncertain. METHODS: A total of 504 patients diagnosed with CIN1 by pathology, who were from the population-based cohorts established in Shanxi Province, China, were enrolled and followed up for 2 years. Micro-environmental factors such as vaginal pH, cleanliness, hydrogen peroxide (H2O2), ß-glucuronidase (GUSB), leucocyte esterase (LE), and sialidase (SNA) were detected to evaluate their effect on the malignant prognosis of CIN1. RESULTS: Abnormal vaginal pH (HR = 1.472, 95%CI 1.071-2.022), cleanliness (HR = 1.446, 95%CI 1.067-1.960), H2O2 (HR = 1.525, 95%CI 1.155-2.013), GUSB (HR = 1.739, 95%CI 1.235-2.448), LE (HR = 1.434, 95%CI 1.038-1.981), and SNA (HR = 1.411, 95%CI 1.065-1.870) could promote a higher incidence of CIN1 malignant prognosis, and the combined effects of these micro-environmental factors resulted in a nearly twofold increased risk (HR = 2.492, 95%CI 1.773-3.504) compared to any single factor alone, especially under the high-risk human papillomavirus (HR-HPV) infection. Notably, the cumulative incidence of malignant prognosis for CIN1 gradually increased during the early follow-up period, reaching its peak at approximately 8 months, and then stabilizing. CONCLUSION: Vaginal micro-environment disorder could promote CIN1 malignant prognosis, particularly in HR-HPV-infected women. Taking micro-environmental factors as the breakthrough, our study provides a feasible vision for preventing early stage cervical lesions.

Assuntos

Displasia do Colo do Útero , Neoplasias do Colo do Útero , Vagina , Humanos , Feminino , Displasia do Colo do Útero/patologia , Displasia do Colo do Útero/epidemiologia , Displasia do Colo do Útero/virologia , China/epidemiologia , Prognóstico , Neoplasias do Colo do Útero/patologia , Neoplasias do Colo do Útero/epidemiologia , Neoplasias do Colo do Útero/virologia , Adulto , Estudos Prospectivos , Pessoa de Meia-Idade , Vagina/patologia , Concentração de Íons de Hidrogênio , Peróxido de Hidrogênio , Microambiente Tumoral , Glucuronidase/metabolismo , Infecções por Papillomavirus/complicações , Infecções por Papillomavirus/epidemiologia , Seguimentos , Adulto Jovem

RESUMO

ABSTRACT BACKGROUND: Abnormal uterine bleeding (AUB) is a common condition, and the Menstrual Bleeding Questionnaire (MBQ) is used for its assessment. OBJECTIVES: To translate, assess the cut-off point for diagnosis, and explore psychometric properties of the MBQ for use in Brazilian Portuguese. DESIGN AND SETTING: Prospective cohort study including 200 women (100 with and 100 without AUB) at a tertiary referral center. METHODS: MBQ translation involved a pilot-testing phase, instrument adjustment, data collection, and back-translation. Cut-off point was obtained using receiver operating curve analysis. Menstrual patterns, impact on quality of life due to AUB, internal consistency, test-retest, responsiveness, and discriminant validity were assessed. For construct validity, the Pictorial Blood Assessment Chart (PBAC) and World Health Organization Quality of Life - abbreviated version (WHOQOL-BREF) were applied. RESULTS: Women with AUB were older, had higher body mass indices, and had a worse quality of life during menstruation. Regarding the MBQ's psychometric variables, Cronbach's alpha coefficient was > 0.70 in all analyses, high intraclass correlation coefficient was found in both groups; no ceiling and floor effects were observed, and construct validity was demonstrated (correlation between MBQ score, PBAC score, and clinical menstrual cycle data). No difference between MBQ and PBAC scores were perceived after the test-retest. Significant differences were found between MBQ and PBAC scores before and after treatment. An MBQ score ≥ 24 was associated with a high probability of AUB; accuracy of 98%. CONCLUSION: The MBQ is a reliable questionnaire for Brazilian women. The cut-off ≥ 24 shows high accuracy to discriminate AUB.

RESUMO

BACKGROUND: Clinically Isolated Syndrome (CIS) is the first clinical episode suggestive of Clinical Definite Multiple Sclerosis (CDMS). There are no reports on possible predictors of conversion to CDMS in Mexican mestizo patients. AIM OF THE STUDY: To investigate immunological markers, clinical and paraclinical findings, and the presence of herpesvirus DNA to predict the transition from CIS to CDMS in Mexican patients. METHODS: A single-center prospective cohort study was conducted with newly diagnosed patients with CIS in Mexico between 2006 and 2010. Clinical information, immunophenotype, serum cytokines, anti-myelin protein immunoglobulins, and herpes viral DNA were determined at the time of diagnosis. RESULTS: 273 patients diagnosed with CIS met the enrolment criteria; after 10 years of follow-up, 46% met the 2010 McDonald criteria for CDMS. Baseline parameters associated with conversion to CDMS were motor symptoms, multifocal syndromes, and alterations of somatosensory evoked potentials. The presence of at least one lesion on magnetic resonance imaging was the main factor associated with an increased risk of conversion to CDMS (RR 15.52, 95% CI 3.96-60.79, p = 0.000). Patients who converted to CDMS showed a significantly lower percentage of circulating regulatory T cells, cytotoxic T cells, and B cells, and the conversion to CDMS was associated with the presence of varicella-zoster virus and herpes simplex virus 1 DNA in cerebrospinal fluid and blood. CONCLUSION: There is scarce evidence in Mexico regarding the demographic and clinical aspects of CIS and CDMS. This study shows several predictors of conversion to CDMS to be considered in Mexican patients with CIS.

Assuntos

Doenças Desmielinizantes , Esclerose Múltipla , Humanos , Esclerose Múltipla/diagnóstico , Estudos Prospectivos , México/epidemiologia , Progressão da Doença , Doenças Desmielinizantes/diagnóstico , Doenças Desmielinizantes/complicações , Doenças Desmielinizantes/patologia , Imageamento por Ressonância Magnética/métodos

RESUMO

BACKGROUND: Information on the association between the systemic immune-inflammation index (SII) and white matter hyperintensities (WMH) of presumed vascular origin is confined to cross-sectional studies. We sought to evaluate the impact of SII on WMH progression in community-dwelling older adults. METHODS: Following a longitudinal prospective study design, participants of a population-based cohort received baseline blood tests to calculate the SII (platelets x neutrophils / lymphocytes x 109 L) together with clinical interviews and brain MRIs. Participants with follow-up brain MRI were included in the analysis. Poisson regression models adjusted for demographics and cardiovascular risk factors were fitted to assess the incidence rate ratio of WMH progression by levels of the SII. RESULTS: Across 246 study participants (mean age: 65.5 ± 5.9 years; 55% women), the mean SII was 434.7 ± 193.8 × 109 L, and WMH progression was found in 101 (41%) individuals after a mean of 7.3 ± 1.5 years. A multivariate Poisson regression model showed increased WMH progression rate among individuals in the fourth quartile of the SII compared with those in the first quartile (IRR: 1.87; 95% C.I.: 1.02-3.41). CONCLUSIONS: Study results provided novel evidence of an independent association between the SII and WMH progression. The SII may be able to identify individuals at high risk of WMH progression.

Assuntos

Vida Independente , Substância Branca , Humanos , Feminino , Idoso , Pessoa de Meia-Idade , Masculino , Estudos Prospectivos , Substância Branca/diagnóstico por imagem , Equador/epidemiologia , Estudos Transversais , Imageamento por Ressonância Magnética/métodos , Inflamação/diagnóstico por imagem

RESUMO

Introduction: Oily fish intake may reduce the progression of white matter hyperintensities (WMH) of presumed vascular origin due to their high content of omega-3 polyunsaturated fatty acids and other nutrients. However, information on this relationship is limited. We aimed to assess the association between oily fish intake and WMH progression in older adults living in rural coastal Ecuador. Methods: Participants of the Atahualpa Project Cohort received baseline clinical interviews and brain MRIs. Oily fish intake was calculated at every annual door-to-door survey from enrollment to the end of the study. Individuals who also received a follow-up brain MRI were included. Poisson regression models were fitted to assess the incidence rate ratio (IRR) of WMH progression according to the amount of oily fish intake, after adjusting for demographics, level of education and traditional vascular risk factors. Results: The study included 263 individuals of Amerindian ancestry aged ⩾60 years (mean age: 65.7 ± 6.2 years; 57% women). The mean oily fish intake was 8.3 ± 4 servings per week. Follow-up MRIs demonstrated WMH progression in 103 (39%) individuals after a median follow-up of 6.5 years. A multivariate Poisson regression model showed an inverse relationship between oily fish intake and WMH progression (IRR: 0.89; 95% CI: 0.84-0.95; p < 0.001). A similar model also revealed an inverse relationship between tertiles of oily fish intake and probabilities of WMH progression, which became significant when individuals allocated to the third tertile were compared to those in the first and second tertiles. Conclusion: Study results show an inverse relationship between the amount of oily fish intake and WMH progression in frequent fish consumers of Amerindian ancestry.

RESUMO

AIMS: Results of previous studies of abdominal adiposity and risk of vascular-metabolic mortality in Hispanic populations have been conflicting. We report results from a large prospective study of Mexican adults with high levels of abdominal adiposity. METHODS AND RESULTS: A total of 159 755 adults aged ≥35 years from Mexico City were enrolled in a prospective study and followed for 16 years. Cox regression, adjusted for confounders, yielded mortality rate ratios (RRs) associated with three markers of abdominal adiposity (waist circumference, waist-hip ratio, and waist-height ratio) and one marker of gluteo-femoral adiposity (hip circumference) for cause-specific mortality before age 75 years. To reduce reverse causality, deaths in the first 5 years of follow-up and participants with diabetes or other prior chronic disease were excluded. Among 113 163 participants without prior disease and aged 35-74 years at recruitment, all adiposity markers were positively associated with vascular-metabolic mortality. Comparing the top versus bottom tenth of the sex-specific distributions, the vascular-metabolic mortality RRs at ages 40-74 years were 2.32 [95% confidence interval (CI) 1.84-2.94] for waist circumference, 2.22 (1.71-2.88) for the waist-hip ratio, 2.63 (2.06-3.36) for the waist-height ratio, and 1.58 (1.29-1.93) for hip circumference. The RRs corresponding to each standard deviation (SD) higher usual levels of these adiposity markers were 1.34 (95% CI 1.27-1.41), 1.31 (1.23-1.39), 1.38 (1.31-1.45), and 1.18 (1.13-1.24), respectively. For the markers of abdominal adiposity, the RRs did not change much after further adjustment for other adiposity markers, but for hip circumference the association was reversed; given body mass index and waist circumference, the RR for vascular-metabolic mortality for each one SD higher usual hip circumference was 0.80 (0.75-0.86). CONCLUSIONS: In this study of Mexican adults, abdominal adiposity (and in particular the waist-height ratio) was strongly and positively associated with vascular-metabolic mortality. For a given amount of general and abdominal adiposity, however, higher hip circumference was associated with lower vascular-metabolic mortality.

Assuntos

Adiposidade , Obesidade Abdominal , Adulto , Biomarcadores , Índice de Massa Corporal , Feminino , Humanos , Masculino , México/epidemiologia , Obesidade/complicações , Obesidade Abdominal/complicações , Obesidade Abdominal/diagnóstico , Estudos Prospectivos , Fatores de Risco , Circunferência da Cintura , Relação Cintura-Quadril

RESUMO

INTRODUCTION: Dementia has been associated with COVID-19 prevalence, but whether this reflects higher infection, older age of patients, or disease severity remains unclear. METHODS: We investigated a cohort of 12,863 UK Biobank community-dwelling individuals > 65 years old (1814 individuals ≥ 80 years old) tested for COVID-19. Individuals were stratified by age to account for age as a confounder. Risk factors were analyzed for COVID-19-positive diagnosis, hospitalization, and death. RESULTS: All-cause dementia, Alzheimer's disease (AD), and Parkinson's disease (PD) were associated with COVID-19-positive diagnosis, and all-cause dementia and AD remained associated in individuals ≥ 80 years old. All-cause dementia, AD, or PD were not risk factors for overall hospitalization, but increased the risk of hospitalization of COVID-19 patients. All-cause dementia and AD increased the risk of COVID-19-related death, and all-cause dementia was uniquely associated with increased death in ≥ 80-year-old patients. DISCUSSION: All-cause dementia and AD are age-independent risk factors for disease severity and death in COVID-19.

Assuntos

COVID-19/mortalidade , Demência/epidemiologia , Fatores Etários , Idoso , Idoso de 80 Anos ou mais , Doença de Alzheimer/complicações , Doença de Alzheimer/epidemiologia , COVID-19/complicações , Comorbidade , Demência/complicações , Feminino , Hospitalização , Humanos , Vida Independente , Pacientes Internados , Masculino , Doença de Parkinson/complicações , Doença de Parkinson/epidemiologia , Prevalência , Estudos Prospectivos , Fatores de Risco , Índice de Gravidade de Doença , Reino Unido/epidemiologia

RESUMO

This study examined the association between coffee consumption and all-cause mortality in patients with a prior acute myocardial infarction or unstable angina. Data were from the prospective study ERICO, totalising 928 patients with Acute Coronary Syndrome (ACS). During 4 years' follow-up, a total of 111 deaths occurred. Moderate coffee consumption (1-2 and 2-3 cups/day) was inversely associated with total mortality (HR 0.13, 95% CI: 0.06-0.29 and 0.22, 95% CI: 0.13-0.39, respectively). For patients with higher coffee consumption (>3 cups/day), there was a positive association with mortality (HR 2.12, 95% CI: 1.06-4.24). After stratification by smoking status, the analysis revealed lower risk of mortality in never and former smokers, drinking 1-2 and 2-3 cups/day. Among current smokers there was a positive association between >3 cups/day and mortality. The moderate consumption of coffee was associated with lower risk of all-cause mortality in patients with a prior ACS, particularly in non-smokers.

Assuntos

Síndrome Coronariana Aguda , Café , Síndrome Coronariana Aguda/mortalidade , Humanos , não Fumantes , Estudos Prospectivos , Fatores de Risco

RESUMO

ABSTRACT Objective: To measure the Achilles tendon length, thickness and cross-sectional area in asymptomatic adult Saudi participants and to investigate the possible changes in these measurements based on their different ages and body height. Methods: The prospective cohort study was done between January 2014 and March 2015. A total of 200 asymptomatic participants with 175 males (87.5%) and 25 females (12.5%) between the ages of 14 and 65 years, with the mean age of 25 ± 1.5 years, were scanned at two radiology departments. Ultrasound (US) scans for the Achilles tendons were performed using a Hitachi (EZU-MT30-S1 HI Vision Avius, Hitachi, Japan) US machine. Statistical Package for the Social Sciences (SPSS Inc., Chicago, IL, USA) was used to analyse the results. Results: There was no significant difference in the length, cross-sectional area and thickness of the Achilles tendons among the participants of different ages; however, the cross-sectional area of Achilles tendons of the older participants (≥ 47 years) was higher than that of the participants of the younger age groups. Moreover, there was no correlation between the length, cross-sectional area, and thickness of the Achilles tendons and their body heights; however, the participants of ≥ 153 cm in height showed an increase in their Achilles tendon cross-sectional areas. Conclusion: Ultrasound is a useful imaging tool in the assessment of the Achilles tendons. The normal variations of the tendon morphological characteristics should be considered in the clinical diagnosis. Additional studies on the correlations among the Achilles tendon length, thickness and cross-sectional areas of ethnicity of the participants in Saudi Arabia are suggested.

RESUMO

Introduction: Dementia has been associated with COVID‐19 prevalence, but whether this reflects higher infection, older age of patients, or disease severity remains unclear. Methods: We investigated a cohort of 12,863 UK Biobank community‐dwelling individuals > 65 years old (1814 individuals ≥ 80 years old) tested for COVID‐19. Individuals were stratified by age to account for age as a confounder. Risk factors were analyzed for COVID‐19–positive diagnosis, hospitalization, and death. Results: All‐cause dementia, Alzheimer's disease (AD), and Parkinson's disease (PD) were associated with COVID‐19‐positive diagnosis, and all‐cause dementia and AD remained associated in individuals ≥ 80 years old. All‐cause dementia, AD, or PD were not risk factors for overall hospitalization, but increased the risk of hospitalization of COVID‐19 patients. All‐cause dementia and AD increased the risk of COVID‐19–related death, and all‐cause dementia was uniquely associated with increased death in ≥ 80‐year‐old patients. Discussion: All‐cause dementia and AD are age‐independent risk factors for disease severity and death in COVID‐19.

RESUMO

INTRODUCTION: A recently recognised form of chronic kidney disease (CKD) of unknown origin (CKDu) is afflicting communities, mostly in rural areas in several regions of the world. Prevalence studies are being conducted in a number of countries, using a standardised protocol, to estimate the distribution of estimated glomerular filtration rate (eGFR), and thus identify communities with a high prevalence of reduced glomerular filtration rate (GFR). In this paper, we propose a standardised minimum protocol for cohort studies in high-risk communities aimed at investigating the incidence of, and risk factors for, early kidney dysfunction. METHODS AND ANALYSIS: This generic cohort protocol provides the information to establish a prospective population-based cohort study in low-income settings with a high prevalence of CKDu. This involves a baseline survey that included key elements from the DEGREE survey (eg, using the previously published DEGREE methodology) of a population-representative sample, and subsequent follow-up visits in young adults (without a pre-existing diagnosis of CKD (eGFR<60 mL/min/1.73m2), proteinuria or risk factors for CKD at baseline) over several years. Each visit involves a core questionnaire, and collection and storage of biological samples. Local capacity to measure serum creatinine will be required so that immediate feedback on kidney function can be provided to participants. After completion of follow-up, repeat measures of creatinine should be conducted in a central laboratory, using reference standards traceable to isotope dilution mass spectrometry (IDMS) quality control material to quantify the main outcome of eGFR decline over time, alongside a description of the early evolution of disease and risk factors for eGFR decline. ETHICS AND DISSEMINATION: Ethical approval will be obtained by local researchers, and participants will provide informed consent before the study commences. Participants will typically receive feedback and advice on their laboratory results, and referral to a local health system where appropriate.

Assuntos

Taxa de Filtração Glomerular , Falência Renal Crônica , Proteinúria , Insuficiência Renal Crônica , Medição de Risco/métodos , Protocolos Clínicos , Estudos de Coortes , Progressão da Doença , Feminino , Necessidades e Demandas de Serviços de Saúde , Humanos , Cooperação Internacional , Falência Renal Crônica/etiologia , Falência Renal Crônica/mortalidade , Falência Renal Crônica/prevenção & controle , Masculino , Prevalência , Proteinúria/diagnóstico , Proteinúria/etiologia , Insuficiência Renal Crônica/complicações , Insuficiência Renal Crônica/diagnóstico , Insuficiência Renal Crônica/epidemiologia , Projetos de Pesquisa , Fatores de Risco , População Rural , Adulto Jovem

RESUMO

BACKGROUND: Stroke is a leading cause of disability in developing countries. However, there are no studies assessing the impact of nonfatal strokes on mortality in rural areas of Latin America. Using a population-based, prospective cohort study, we aimed to assess the influence of nonfatal strokes on all-cause mortality in older adults living in an underserved rural setting. METHODS: Deaths occurring during a 5-year period in Atahualpa residents aged ≥60 years were identified from overlapping sources. Tests for equality of survivor functions were used to estimate differences between observed and expected deaths for each covariate investigated. Cox proportional hazards models were used to estimate Kaplan-Meier survival curves of variables reaching significance in univariate analyses. RESULTS: Of 437 individuals enrolled over 5 years, follow-up was achieved in 417 (95%), contributing 1776 years of follow-up (average 4.3 ± 1.3 years). Fifty-one deaths were detected, for an overall cumulative 5-year mortality rate of 12.2% (8.9%-15.6%). Being older than 70 years of age, having poor physical activity, edentulism, and history of a nonfatal stroke were related to mortality in univariate analyses. A fully adjusted Cox proportional hazards model showed that having history of a nonfatal stroke (P = 0.024) and being older than 70 years of age (P = 0.031) independently predicted mortality. In contrast, obesity was inversely correlated with mortality (P = 0.047). CONCLUSIONS: A nonfatal stroke and increasing age increase the risk of all-cause mortality in inhabitants of a remote rural village. The body mass index is inversely related to death (obesity paradox).

RESUMO

This paper aimed to examine prenatal alcohol exposure and neuropsychological parameters and its relationship to impulsivity and inattention. Longitudinal prospective case-control cohort study starting with the risk drinking assessment of 449 third-trimester pregnant women, and a follow-up phase with 56 mother-child pairs (28 alcohol-exposed versus 28 non-exposed), with 11-12 years old children. The cohort study was followed up for 11 years. Quantity-frequency structured questions as well as AUDIT and T-ACE questionnaires were used to assess maternal alcohol consumption. A comprehensive set of neuropsychological testing instruments was used, including d2 Test, RCFT, RAVLT, WISC-III, among others. To control low IQ effects and intellectual disability diagnoses, as well differences in school skills biasing the neuropsychological comparison assessment, children with IQ <70 or learning disabilities were excluded of the sample. The two groups showed to be very comparable regarding sex, age, schooling, global IQ, laterality and maternal and social risk factors. Significant statistical differences were found for higher speed processing, total errors, and number of omission errors in the d2 Test. Likewise, there were differences found on RCFT test (lower scores for copy, immediate and delayed recall), and on semantic verbal fluency tests with a lower score. Prenatal alcohol-exposed children seems to be more inattentive and impulsive; they have poorer skills in verbal fluency, visuospatial working memory, and executive processing when compared to non-exposed children who were part of the same cohort sample.

Assuntos

Consumo de Bebidas Alcoólicas/efeitos adversos , Consumo de Bebidas Alcoólicas/epidemiologia , Transtorno do Deficit de Atenção com Hiperatividade/epidemiologia , Comportamento Impulsivo , Efeitos Tardios da Exposição Pré-Natal/epidemiologia , Adulto , Consumo de Bebidas Alcoólicas/psicologia , Transtorno do Deficit de Atenção com Hiperatividade/diagnóstico , Transtorno do Deficit de Atenção com Hiperatividade/psicologia , Brasil , Estudos de Casos e Controles , Criança , Estudos de Coortes , Feminino , Seguimentos , Humanos , Testes de Inteligência , Estudos Longitudinais , Masculino , Testes Neuropsicológicos , Gravidez , Efeitos Tardios da Exposição Pré-Natal/diagnóstico , Efeitos Tardios da Exposição Pré-Natal/psicologia , Estudos Prospectivos

RESUMO

Oxidative stress plays a pivotal role in the pathophysiology of diabetic nephropathy, and the nicotinamide adenine dinucleotide phosphate (NADPH) oxidase system is an important source of reactive oxygen species in hyperglycemic conditions in the kidney. Plasma concentration of advanced oxidation protein products (AOPP), a marker of oxidative stress, is increased in patients with diabetic nephropathy. We investigated associations of variants in the CYBA gene, encoding the regulatory subunit p22(phox) of NADPH oxidase, with diabetic nephropathy and plasma AOPP and myeloperoxidase (MPO) concentrations in type 1 diabetic patients. Seven SNPs in the CYBA region were analyzed in 1357 Caucasian subjects with type 1 diabetes from the SURGENE (n=340), GENEDIAB (n=444), and GENESIS (n=573) cohorts. Duration of follow-up was 10, 9, and 6 years, respectively. Cox proportional hazards and logistic regression analyses were used to estimate hazard ratios (HR) or odds ratios (OR) for incidence and prevalence of diabetic nephropathy. The major G-allele of rs9932581 was associated with the incidence of renal events defined as new cases of microalbuminuria or the progression to a more severe stage of nephropathy during follow-up (HR 1.59, 95% CI 1.17-2.18, P=0.003) in SURGENE. The same allele was associated with established/advanced nephropathy (OR 1.52, 95% CI 1.22-1.92, P=0.0001) and with the incidence of end-stage renal disease (ESRD) (HR 2.01, 95% CI 1.30-3.24, P=0.001) in GENEDIAB/GENESIS pooled studies. The risk allele was also associated with higher plasma AOPP concentration in subsets of SURGENE and GENEDIAB, with higher plasma MPO concentration in a subset of GENEDIAB, and with lower estimated glomerular filtration rate (eGFR) in the three cohorts. In conclusion, a functional variant in the promoter of the CYBA gene was associated with lower eGFR and with prevalence and incidence of diabetic nephropathy and ESRD in type 1 diabetic patients. These results are consistent with a role for NADPH oxidase in the pathophysiology of kidney complications of diabetes.

Assuntos

Diabetes Mellitus Tipo 1/genética , Nefropatias Diabéticas/genética , Falência Renal Crônica/genética , NADPH Oxidases/genética , Adulto , Diabetes Mellitus Tipo 1/complicações , Diabetes Mellitus Tipo 1/epidemiologia , Nefropatias Diabéticas/epidemiologia , Frequência do Gene , Estudos de Associação Genética , Predisposição Genética para Doença , Humanos , Incidência , Falência Renal Crônica/epidemiologia , Pessoa de Meia-Idade , Estresse Oxidativo , Polimorfismo de Nucleotídeo Único , Regiões Promotoras Genéticas , Estudos Prospectivos , Risco , Adulto Jovem

RESUMO

Este estudo de coorte aberto prospectivo teve como objetivo avaliar a progressão da periodontite, a influência de variáveis preditoras de risco e avaliar a incidência e motivos para a ocorrência de perda dentária (PD) em indivíduos inseridos num programa de terapia de manutenção periodontal (TMP) em ambiente universitário. Metodologia: 250 indivíduos com diagnóstico de periodontite crônica moderadaavançada, que finalizaram terapia periodontal ativa foram recrutados na Faculdade de Odontologia da Universidade Federal de Minas Gerais, Brasil. Todos foram submetidos a um exame clínico periodontal completo (TMP1) e a uma coleta de variáveis sociais, demográficas e biológicas de interesse. Avaliou-se o grau de cooperação destes indivíduos (cooperadores, cooperadores irregulares e não cooperadores) quanto à adesão ao programa de TMP em re-chamadas trimestrais (TMP2, TMP3 e TMP4) pelo período de 12 meses. Assim, 150 indivíduos considerados cooperadores completos (60%) foram elegíveis para esta pesquisa. Em todas as re-chamadas foram coletados os seguintes dados: índice de placa (IP), sangramento a sondagem (SS), profundidade de sondagem (PS), níveis clínicos de inserção (NCI), supuração (S) e envolvimento de furca (EF), em todos dentes presentes (com exceção de terceiros molares). Identificou-se, pela plausibilidade biológica, quais variáveis preditoras de risco poderiam influenciar a condição clínica periodontal e a progressão da periodontite. O efeito de variáveis de interesse e confundimentofoi testado por análise univariada e regressão logística multivariada, assim como motivos e tipos de dentes perdidos. Resultados: Observou-se uma melhora considerável nos parâmetros clínicos periodontais na maioria dos indivíduos. Durante o período de monitoramento, 130 indivíduos (86,7%) tiveram estabilidade periodontal e 20 indivíduos (13,3%) apresentaram progressão de periodontite. Diabetes não foi associada à progressão de periodontite (p=0,67) e o tabagismo foi significantemente associado a maior progressão de periodontite (RC=2,7; 95% IC: 1,01-7,22). 28 indivíduos (18,66%) apresentaram perda dentária os quais somaram 47 dentes perdidos (1,4%). Os motivos e números de dentes perdidos foram respectivamente: doença periodontal (n=34; 72,3%), cárie (n=3; 6,4%), motivos protéticos (n=9; 19,2%), perfuração radicular (n=1; 2,1%). Molares apresentaram maior mortalidade dental do que não molares e homens 3 vezes mais chances de PD do que mulheres (RC=3,16; 95% IC: 1,28-7,78). Indivíduos com 10% de sítios com PS entre 4 e 6 mm apresentaram 5 vezes mais chances de PD (RC= 5,13; IC 95%: 2,04-12,09). A determinação do risco individual pelo modelo ARP (Avaliação do Risco Periodontal) resultou na classificação dos indivíduos em 02(1,3%) de baixo risco, 83 (55,3%) de moderado risco e 65 (43,4%) de alto risco àrecorrência de periodontite. Conclusões: Os programas de manutenção periodontalem ambiente universitário podem estabilizar a condição periodontal obtida apósterapia ativa e, adicionalmente, controlar e/ou minimizar a ação de variáveispreditoras de risco a progressão da periodontite. Neste estudo, a incidência de PDfoi pequena e restrita a poucos indivíduos. A adoção do modelo ARP contribui para adeterminação do risco individual dos indivíduos, permitindo que os escores de riscosejam comparados ao longo do tempo. Assim, este instrumento pode ser válido paramonitorar particularmente variáveis mutáveis de risco e auxiliar na estratégia,determinação e cooperação nos programas de TMP. A estabilidade dos tecidosperiodontais, controle de variáveis de risco e redução da PD podem ser metasalcançáveis pelos programas de TMP, refletindo a sua eficiência e propiciandomelhor qualidade de vida para indivíduos periodontalmente susceptíveis

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This open prospective cohort study aimed to evaluate the progression of periodontitisand, in addition, the incidence, the reasons and the role of risk predictors on theoccurrence of tooth loss (TL) in individuals inserted in a program of periodontalmaintenance therapy (PMT) in academic environment. Methods: 250 individualsdiagnosed with moderate/advanced chronic periodontitis, that had finished activeperiodontal therapy, in the Faculty of Dentistry of the Federal University of MinasGerais, Brazil, were selected. Individuals were submitted to a complete clinicalperiodontal examination (PMT1) and collection of social, demographic and biologicalvariables of interest was performed. The degree of compliance of these individuals,(compliers, irregular compliers and non compliers) according to the adhesion to theTMP program in quarterly recalls (PMT2, PMT3 and PMT4), was evaluated during 12months period. A total of 150 individuals, that were considered complete compliers(60%), became eligible for this study. In the recall visits, the following data werecollected for all teeth (with exception of third molars): plaque index (PI), bleeding onprobing (BOP), probing depth (PD), clinical attachment level (CAL), suppuration (SU)and furcation involvement (FI). It was identified, according to the biologicalplausibility, which risk predictors could influence the periodontal clinical condition andthe progression of the periodontitis. The effect of variables of interest andconfounding was tested by univariate analysis and multivaried logistic regression, aswell as the reasons and types of teeth that were lost. Results: A considerableimprovement in periodontal clinical parameters was observed in the majority of theindividuals. During the monitoring, 130 individuals (86.7%) showed periodontalstability and 20 individuals (13.3%) presented periodontitis progression. Diabeteswas not associated with periodontitis progression (p=0.67) and, in contrast, smokingwas significantly associated with periodontitis progression (OR=2.7; 95% IC 1.01-7.22). 28 individuals (18.66%) presented TL, resulting in a total of 47 lost teeth(1.4%). The reasons and numbers of tooth loss and numbers were, respectively:periodontal disease (n=34; 72.3%), caries (n=3; 6.4%), prosthetic reasons (n=9;19.2%), root perforation (n=1; 2.1%). Molars presented greater tooth mortality thannon molars and men presented 3 times more odds of TL than women (OR=3.16;95% IC: 1.28-7.78). Additionally, individuals with 10% of sites with PD between 4 and6mm presented 5 times more odds of TL (OR= 5.13; IC 95%: 2.04 ­ 12.09). Theperiodontal risk assessment (PRA) resulted in the classification of individuals in 02(1.3%) low risk, 83 (55.3%) moderate risk and 65 (43.4%) of high-risk for recurrenceof periodontitis. Conclusions: The programmes of periodontal maintenance inacademic environment can stabilize the periodontal condition obtained after activetherapy, additionally to control and/or minimize the action of risk predictors on theprogression of periodontitis. In this study, the TL incidence was small and restrictedto few individuals. The adoption of the model PRA contributes to the determination ofrisk of individuals allowing the risk scores are compared over time. So, thisinstrument can be particularly monitoring changeable risk predictors and assisting inthe strategy, determination and compliance in the PMT programs. The stability ofperiodontal sites, the control of risk predictors and the reduction of TL can bepredictable goals for the PMT programs, reflecting its effectiveness and betterimproving quality of life for individuals susceptible to periodontitis

Assuntos

Fatores Epidemiológicos , Doenças Periodontais/reabilitação , Índice Periodontal , Periodontia/estatística & dados numéricos , Periodontite/complicações , Perda de Dente/classificação , Estudos de Coortes , Interpretação Estatística de Dados