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1.
J Prev Alzheimers Dis ; 10(4): 810-820, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37874103

RESUMO

INTRODUCTION: Lower blood levels of the omega-3 polyunsaturated fatty acid docosahexaenoic acid (DHA) are correlated with worse cognitive functions, particularly among APOE ε4 carriers. Whether DHA supplementation in APOE ε4 carriers with limited DHA consumption and dementia risk factors can delay or slow down disease progression when started before the onset of clinical dementia is not known. METHODS: PreventE4 is a double-blind, single site, randomized, placebo-controlled trial in cognitively unimpaired individuals with limited omega-3 consumption and dementia risk factors (n=368). Its objectives are to determine (1) whether carrying the APOE ε4 allele is associated with lower delivery of DHA to the brain; and (2) whether high dose DHA supplementation affects brain imaging biomarkers of AD and cognitive function. RESULTS: 365 cognitively unimpaired individuals between 55 and 80 (mean age 66) were randomized to 2 grams of DHA per day or identically appearing placebo for a period of 2 years. Half the participants were asked to complete lumbar punctures at baseline and 6-month visits to obtain cerebrospinal fluid (CSF). The primary trial outcome measure is the change in CSF DHA to arachidonic acid ratio after 6 months of the intervention (n=181). Secondary trial outcomes include the change in functional and structural connectivity using resting state functional MRI at 24 months (n=365). Exploratory outcomes include the change in Repeatable Battery of the Assessment of Neuropsychological Status at 24 months (n=365). CONCLUSIONS: Findings from PreventE4 will clarify the brain delivery of DHA in individuals carrying the APOE ε4 allele with implications for dementia prevention strategies. Trial was registered as NCT03613844.


Assuntos
Doença de Alzheimer , Ácidos Graxos Ômega-3 , Humanos , Doença de Alzheimer/tratamento farmacológico , Apolipoproteína E4/genética , Encéfalo/diagnóstico por imagem , Ácidos Docosa-Hexaenoicos/uso terapêutico , Ácidos Graxos Ômega-3/uso terapêutico , Pessoa de Meia-Idade , Idoso , Idoso de 80 Anos ou mais
2.
Climacteric ; 24(2): 194-199, 2021 04.
Artigo em Inglês | MEDLINE | ID: mdl-33179515

RESUMO

OBJECTIVES: Among postmenopausal women taking hormone therapy (HT), the estradiol (E2) dose and E2 levels were differentially associated with change in metabolic measures. We evaluated determinants of attained E2 levels in response to HT. METHODS: Postmenopausal women from the REPLENISH trial tested four formulations of oral combined E2 and progesterone compared with placebo. Mixed-effects linear models assessed characteristics associated with E2 levels among women with ≥80% HT compliance, adjusted for E2 dose and baseline E2 level. RESULTS: Among 1173 postmenopausal women with mean (standard deviation) age 55 (4.3) years and 5.2 (4.8) years since menopause, higher treated E2 levels were significantly related to younger age, more recent menopause, and current alcohol use, while lower E2 levels were related to current smoking. Both age and time since menopause were significantly inversely associated with E2 levels; time since menopause had a stronger association with E2 levels. In the final multivariable model, E2 levels were positively associated with current alcohol use, and inversely associated with time since menopause and current smoking. CONCLUSION: Adjusting for E2 dose and baseline E2 level, on-trial E2 levels were significantly associated with time since menopause, current smoking, and current alcohol use. Practitioners should consider these factors in individual women to achieve a desirable E2 level during HT.


Assuntos
Estradiol/sangue , Terapia de Reposição de Estrogênios/métodos , Estrogênios/administração & dosagem , Pós-Menopausa/sangue , Progesterona/administração & dosagem , Fatores Etários , Consumo de Bebidas Alcoólicas/sangue , Método Duplo-Cego , Feminino , Humanos , Modelos Lineares , Pessoa de Meia-Idade , Fumar/sangue , Fatores de Tempo , Resultado do Tratamento
3.
Nutr Diabetes ; 10(1): 22, 2020 06 17.
Artigo em Inglês | MEDLINE | ID: mdl-32555148

RESUMO

BACKGROUND/OBJECTIVES: To ascertain the effect on body weight of 14 days of bolus enteral feeding with mixed meal (MM) and electrolyte solution (ES) in ambulatory adults with type 2 diabetes and obesity, and also the safety and feasibility of using a modified, intraorally anchored enteral feeding tube for this purpose. SUBJECTS/METHODS: We conducted a randomized, crossover pilot trial with 16 participants. A 140 cm, 8-French feeding tube was placed in the jejunum under electromagnetic guidance and anchored intraorally. Participants were randomized to self-administer 120 mL 523 kJ (125 kcal) MM, or 50 kJ (12 kcal) ES four times/day for 14 days. After ≥14 days without the tube, participants crossed over to the other treatment. The primary outcome compared weight change between treatments. Thereafter, participants could elect to undergo additional MM cycles. Participants were encouraged to continue with all usual activities including eating ad lib throughout the study. RESULTS: Ten participants withdrew prior to completing two randomized 14-day cycles (4 social, 3 intolerant of anchor, and 3 intolerant of tube). Six participants were assessed for the primary outcome and showed no significant difference in weight loss between MM and ES (p = 0.082). For the secondary outcome of within-group weight loss, average weight loss from baseline was significant for MM but not for ES: -2.40 kg (95% CI: -3.78, -1.02; p = 0.008) vs. -0.64 kg (95% CI: -2.01, 0.74; p = 0.27). A total of 23 2-week cycles were completed (12 paired, 2 unpaired, and 9 additional), with no significant adverse events for 334 days of tube use. CONCLUSIONS: Repeated bolus nutrient administration via enteral feeding tube is associated with weight loss in adults with obesity and type 2 diabetes, with no significant difference seen between MM and ES feeds. The prototype device was safe, but requires development for further investigation into the effect of bolus jejunal feeding on weight and to improve acceptability.


Assuntos
Peso Corporal , Diabetes Mellitus Tipo 2/terapia , Nutrição Enteral/métodos , Obesidade/terapia , Adulto , Estudos Cross-Over , Estudos de Viabilidade , Feminino , Humanos , Intubação Gastrointestinal/métodos , Jejuno/cirurgia , Masculino , Refeições , Pessoa de Meia-Idade , Projetos Piloto , Resultado do Tratamento , Redução de Peso , Adulto Jovem
4.
Climacteric ; 23(3): 273-278, 2020 06.
Artigo em Inglês | MEDLINE | ID: mdl-31939316

RESUMO

Objective: This study evaluated associations of estradiol (E2) dose and serum E2 levels with coagulation/anti-coagulation measures in early (<6 years) compared with late (≥10 years) postmenopausal women.Methods: Postmenopausal women from the REPLENISH trial tested four formulations of oral combined E2 and progesterone compared with placebo. Mixed-effects linear models tested the association of E2 dose and serum E2 levels with the prothrombin time (PT), the activated partial thromboplastin time (APTT), antithrombin (ATHRM), fibrinogen (FIBRINO), protein C (PROTC), and protein S (PROTS), assessed five times over 12 months.Results: Among 1215 early and 297 late postmenopausal women, the E2 dose was statistically significantly inversely associated with the APTT in early postmenopause, PROTC in late postmenopause, and with the PT, ATHRM, and PROTS in both groups. Serum E2 levels were statistically significantly inversely associated with the APTT, PROTS, and FIBRINO in early postmenopause, the PT in late postmenopause, and ATHRM and PROTC in both groups. With longer time since menopause, the inverse E2 dose effect and serum E2 effects became stronger.Conclusion: Increasing E2 dose and serum E2 levels were associated with changes in coagulation/anti-coagulation measures. The associations were stronger among women ≥10 years since menopause when initiating E2. The timing of E2 therapy, E2 dose, and serum E2 levels relative to time since menopause may modify the venous thromboembolism risk.


Assuntos
Fatores de Coagulação Sanguínea/análise , Estradiol/administração & dosagem , Pós-Menopausa , Administração Oral , Adulto , Idoso , Método Duplo-Cego , Estradiol/sangue , Terapia de Reposição de Estrogênios , Feminino , Humanos , Pessoa de Meia-Idade , Tempo de Protrombina , Estados Unidos
5.
HIV Med ; 21(4): 217-227, 2020 04.
Artigo em Inglês | MEDLINE | ID: mdl-31729142

RESUMO

OBJECTIVES: Elite controllers (ECs), viraemic controllers (VCs), and long-term nonprogressors (LTNPs) control HIV viral replication or maintain CD4 T-cell counts without antiretroviral therapy, but may have increased cardiovascular disease (CVD) risk compared to HIV-uninfected persons. We evaluated subclinical carotid and coronary atherosclerosis and inflammatory biomarker levels among HIV controllers, LTNPs and noncontrollers and HIV-uninfected individuals in the Multicenter AIDS Cohort Study (MACS) and the Women's Interagency HIV Study (WIHS). METHODS: We measured carotid plaque presence and common carotid artery intima-media thickness (IMT) in 1729 women and 1308 men, and the presence of coronary artery calcium and plaque in a subgroup of men. Associations between HIV control category and carotid and coronary plaque prevalences were assessed by multivariable regression analyses adjusting for demographics and CVD risk factors. Serum inflammatory biomarker concentrations [soluble CD163 (sCD163), soluble CD14 (sCD14), galectin-3 (Gal-3), galectin-3 binding protein (Gal-3BP) and interleukin (IL)-6] were measured and associations with HIV control category assessed. RESULTS: We included 135 HIV controllers (30 ECs) and 135 LTNPs in the study. Carotid plaque prevalence and carotid IMT were similar in HIV controllers, LTNPs and HIV-uninfected individuals. HIV controllers and LTNPs had lower prevalences of carotid plaque compared to viraemic HIV-infected individuals. The prevalence of coronary atherosclerosis was similar in HIV controllers/LTNPs compared to HIV-uninfected and viraemic HIV-infected men. Controllers and LTNPs had higher concentrations of sCD163 and sCD14 compared to HIV-uninfected persons. CONCLUSIONS: Subclinical CVD was similar in HIV controllers, LTNPs and HIV-uninfected individuals despite elevated levels of some inflammatory biomarkers. Future studies of HIV controllers and LTNPs are needed to characterize the risk of CVD among HIV-infected persons.


Assuntos
Biomarcadores/sangue , Doenças das Artérias Carótidas/diagnóstico por imagem , Infecções por HIV/complicações , Sobreviventes de Longo Prazo ao HIV/estatística & dados numéricos , Adulto , Antígenos CD/sangue , Antígenos de Diferenciação Mielomonocítica/sangue , Contagem de Linfócito CD4 , Cálcio/metabolismo , Doenças das Artérias Carótidas/sangue , Doenças das Artérias Carótidas/etiologia , Doenças das Artérias Carótidas/imunologia , Espessura Intima-Media Carotídea , Estudos de Coortes , Feminino , Infecções por HIV/sangue , Infecções por HIV/imunologia , Humanos , Receptores de Lipopolissacarídeos/sangue , Masculino , Pessoa de Meia-Idade , Estudos Multicêntricos como Assunto , Estudos Observacionais como Assunto , Receptores de Superfície Celular/sangue , Tomografia Computadorizada por Raios X , Adulto Jovem
6.
Climacteric ; 22(5): 448-453, 2019 10.
Artigo em Inglês | MEDLINE | ID: mdl-30712399

RESUMO

Purpose: This study conducted confirmatory factor analysis (CFA) to examine the measurement structure of the Women's Health Questionnaire (WHQ) and how its components were organized. Methods: Participants were 448 postmenopausal women, with a mean age of 63.3 years. CFA was conducted to test how well several proposed measurement models fit the data. Results: The single-factor model performed poorly, indicating the presence of multiple factors. The model with seven correlated factors fit the data well, although the varying degrees of inter-factor correlations suggested grouping of similar factors. The hierarchical measurement structure, with seven first-order factors organized under two second-order factors of physical health and mental health functioning, demonstrated a good fit with the data (χ2(367) = 694.05, p < 0.001; root mean square error of approximation = 0.05; comparative fit index = 0.95) and a meaningful pattern. The Mental Health factor was represented by Depressed Mood, Anxiety/Fear, Memory/Concentration Problems, and Sleep Problems. The Physical Health factor was manifested mainly by Somatic Symptoms, Menstrual Symptoms, and Vasomotor Symptoms, and, to a lesser extent, also by Sleep Problems and Memory/Concentration Problems. Conclusion: Findings suggested that, in addition to a global index and subscale scores, the WHQ may produce summary scores of physical health and mental health functioning in evaluation of well-being among postmenopausal women.


Assuntos
Pós-Menopausa/psicologia , Psicometria , Qualidade de Vida , Inquéritos e Questionários , Idoso , Idoso de 80 Anos ou mais , Análise Fatorial , Feminino , Humanos , Pessoa de Meia-Idade , Reprodutibilidade dos Testes , Saúde da Mulher
7.
Eur J Neurol ; 24(11): 1384-1391, 2017 11.
Artigo em Inglês | MEDLINE | ID: mdl-28929560

RESUMO

BACKGROUND AND PURPOSE: Intracerebral hemorrhage (ICH) is a devastating cerebrovascular disorder with high morbidity and mortality. Minocycline is a matrix metalloproteinase-9 (MMP-9) inhibitor that may attenuate secondary mechanisms of injury in ICH. The feasibility and safety of minocycline in ICH patients were evaluated in a pilot, double-blinded, placebo-controlled randomized clinical trial. METHODS: Patients with acute onset (<12 h from symptom onset) ICH and small initial hematoma volume (<30 ml) were randomized to high-dose (10 mg/kg) intravenous minocycline or placebo. The outcome events included adverse events, change in serial National Institutes of Health Stroke Scale score assessments, hematoma volume and MMP-9 measurements, 3-month functional outcome (modified Rankin score) and mortality. RESULTS: A total of 20 patients were randomized to minocycline (n = 10) or placebo (n = 10). The two groups did not differ in terms of baseline characteristics. No serious adverse events or complications were noted with minocycline infusion. The two groups did not differ in any of the clinical and radiological outcomes. Day 5 serum MMP-9 levels tended to be lower in the minocycline group (372 ± 216 ng/ml vs. 472 ± 235 ng/ml; P = 0.052). Multiple linear regression analysis showed that minocycline was associated with a 217.65 (95% confidence interval -425.21 to -10.10, P = 0.041) decrease in MMP-9 levels between days 1 and 5. CONCLUSIONS: High-dose intravenous minocycline can be safely administered to patients with ICH. Larger randomized clinical trials evaluating the efficacy of minocycline and MMP-9 inhibition in ICH patients are required.


Assuntos
Hemorragia Cerebral/tratamento farmacológico , Inibidores de Metaloproteinases de Matriz/uso terapêutico , Minociclina/uso terapêutico , Adulto , Idoso , Hemorragia Cerebral/patologia , Método Duplo-Cego , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Projetos Piloto , Resultado do Tratamento
8.
Int J HIV AIDS Res ; 4(3): 154-160, 2017.
Artigo em Inglês | MEDLINE | ID: mdl-29577081

RESUMO

BACKGROUND: Clinical response to highly active antiretroviral therapy (HAART) varies among different populations. A portion of this variability may be due to variation in genes involved in the absorption, distribution, metabolism, and excretion (ADME) of HAART. DESIGN: To identify genetic factors involved in virologic responses to HAART, 13 genes in ADME pathways were analyzed in a cohort of HIV-infected women on HAART. A total of 569 HIV-positive participants from the Women's Interagency HIV Study who initiated HAART from 1994-2012 and had genotype data were included in these analyses. METHODS: Admixture maximum likelihood burden testing was used to evaluate gene-level associations between common genetic variation and virologic response (achieving <80 viral copies/mL) to HAART overall and with specific drug classes. Results: Six statistically significant (P<0.05) gene-level burden tests were observed with response to specific regimen types. CYP2B6, CYP2C19 and CYP2C9 were significantly associated with response to protease inhibitor (PI)-based regimens. CYP2C9, ADH1A and UGT1A1 were significantly associated with response to triple nucleoside reverse transcriptase inhibitor (NRTI) treatment. CONCLUSIONS: Although no genome-wide associations with virologic response to HAART overall were detected in this cohort of HIV-infected women, more statistically significant gene-level burden tests were observed than would be expected by chance (two and a half expected, six observed). It is likely that variation in one of the significant genes is associated with virologic response to certain HAART regimens. Further characterization of the genes associated with response to PI-based treatment is warranted.

9.
J Clin Neurosci ; 31: 133-6, 2016 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-27068011

RESUMO

Use of the pulmonary artery catheter (PAC) has been controversial since the late 1980s. Multi-center observational and randomized controlled trials (RCTs) have concluded that PACs fail to decrease mortality. Subsequently, studies have looked for a decline in PAC use that corresponds to the literature and have indeed found that it exists. However, none to date have looked primarily at trends in the aneurysmal subarachnoid hemorrhage (aSAH) population. This study uses the Nationwide Inpatient Sample (NIS) from 2000-2010 to identify trends in PAC use among patients with aSAH. Trend analysis was assessed using a multivariable regression model with a calculation of slope of PAC frequency over time for pre-2005 and post-2005. Trends in mortality and routine discharge were also assessed for the same time period. 363,096 SAH patients were extrapolated using survey weights, of whom 6,988 had a PAC. Over time, PAC use declined, with a significant downward shift in the year 2005. Analyses also showed a decrease in mortality over the same time period. Our results show that PAC use among patients with aSAH decreased from 2000 to 2010. Similar to other studies, the decline appears to be temporally related to RCTs that showed a lack of benefit from PAC. Studies such as these have the potential to influence clinical practice through illumination of shifting opinions and approaches.


Assuntos
Cateterismo de Swan-Ganz/tendências , Hemorragia Subaracnóidea/terapia , Adulto , Aneurisma Roto/complicações , Feminino , Humanos , Aneurisma Intracraniano/complicações , Masculino , Pessoa de Meia-Idade , Hemorragia Subaracnóidea/etiologia , Hemorragia Subaracnóidea/mortalidade
10.
Climacteric ; 17(5): 540-56, 2014 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-24969415

RESUMO

Women may expect to spend more than a third of their lives after menopause. Beginning in the sixth decade, many chronic diseases will begin to emerge, which will affect both the quality and quantity of a woman's life. Thus, the onset of menopause heralds an opportunity for prevention strategies to improve the quality of life and enhance longevity. Obesity, metabolic syndrome and diabetes, cardiovascular disease, osteoporosis and osteoarthritis, cognitive decline, dementia and depression, and cancer are the major diseases of concern. Prevention strategies at menopause have to begin with screening and careful assessment for risk factors, which should also include molecular and genetic diagnostics, as these become available. Identification of certain risks will then allow directed therapy. Evidence-based prevention for the diseases noted above include lifestyle management, cessation of smoking, curtailing excessive alcohol consumption, a healthy diet and moderate exercise, as well as mentally stimulating activities. Although the most recent publications from the follow-up studies of the Women's Health Initiative do not recommend menopause hormonal therapy as a prevention strategy, these conclusions may not be fully valid for midlife women, on the basis of the existing data. For healthy women aged 50-59 years, estrogen therapy decreases coronary heart disease and all-cause mortality; this interpretation is entirely consistent with results from other randomized, controlled trials and observational studies. Thus. as part of a comprehensive strategy to prevent chronic disease after menopause, menopausal hormone therapy, particularly estrogen therapy may be considered as part of the armamentarium.


Assuntos
Doença Crônica/prevenção & controle , Pós-Menopausa , Idoso , Idoso de 80 Anos ou mais , Doenças Cardiovasculares/epidemiologia , Doenças Cardiovasculares/etiologia , Doenças Cardiovasculares/prevenção & controle , Doença Crônica/epidemiologia , Demência/epidemiologia , Demência/etiologia , Demência/prevenção & controle , Diagnóstico Precoce , Terapia de Reposição de Estrogênios/efeitos adversos , Feminino , Humanos , Menopausa , Pessoa de Meia-Idade , Neoplasias/epidemiologia , Neoplasias/etiologia , Neoplasias/prevenção & controle , Obesidade/epidemiologia , Obesidade/etiologia , Obesidade/prevenção & controle , Osteoartrite/epidemiologia , Osteoartrite/etiologia , Osteoartrite/prevenção & controle , Osteoporose Pós-Menopausa/epidemiologia , Osteoporose Pós-Menopausa/etiologia , Osteoporose Pós-Menopausa/prevenção & controle , Qualidade de Vida , Fatores de Risco , Comportamento de Redução do Risco , Saúde da Mulher
11.
Br J Cancer ; 109(4): 1051-5, 2013 Aug 20.
Artigo em Inglês | MEDLINE | ID: mdl-23860521

RESUMO

BACKGROUND: Meningiomas are the most common primary intracranial tumours, with ∼3% meeting current histopathologic criteria for malignancy. METHODS: In this study, we explored the transcriptome of meningiomas using RNA-Seq. RESULTS: Inversion-mediated fusions between two adjacent genes, NAB2 and STAT6, were detected in one malignant tumour, creating two novel in-frame transcripts that were validated by RT-PCR and Sanger sequencing. CONCLUSION: Gene fusions of NAB2-STAT6 were recently implicated in the pathogenesis of solitary fibrous tumours; our study suggested that similar fusions may also have a role in a malignant meningioma with unusual histopathologic features.


Assuntos
Inversão Cromossômica/genética , Fusão Gênica/genética , Neoplasias Meníngeas/genética , Meningioma/genética , Proteínas Repressoras/genética , Fator de Transcrição STAT6/genética , Instabilidade Genômica/genética , Sequenciamento de Nucleotídeos em Larga Escala , Humanos , Análise de Sequência de RNA
12.
Interv Neuroradiol ; 18(2): 200-7, 2012 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-22681737

RESUMO

Recanalization of previously coiled aneurysms remains a major drawback of endovascular aneurysm therapy. We performed a prospective single arm trial to provide early initial data regarding the safety and angiographic durability of a new coil technology, the Axium MicroFX Polyglycolic/polylactic acid (PGLA) coil, which was designed to lower recanalization rates. Fifteen patients (16 aneurysms) were prospectively enrolled. Demographic and peri-procedural data were collected. Angiographic images of the initial coil embolization and three to six month follow-up angiographic images underwent blinded evaluation. Seven (47%) SAH and eight (53%) elective patients were enrolled. Blinded evaluation of the initial embolization demonstrated that 5/16 (31%) aneurysms achieved Raymond grade 1, 5/16 (31%) grade 2 and 6/16 (38%) grade 3. Three to six month angiography was obtained in 12/15 patients (80%); two patients expired (1 SAH, 1 elective) and one was lost to follow-up (SAH). All patients who underwent follow-up angiography had a mRS ≤1. Blinded evaluation of embolization demonstrated 7/13 aneurysms (54%) improved in Raymond grading, five (38%) were stable and one aneurysm (8%) worsened. One patient developed an asymptomatic peri-aneurysmal parent vessel stenosis. Axium MicroFX coils appear to be safe, though the small number of patients in this series obviates comparative analysis with other series. Further studies are needed with more patients to compare the angiographic durability of Axium MicroFX coils to other coils.


Assuntos
Embolização Terapêutica/instrumentação , Aneurisma Intracraniano/terapia , Adulto , Idoso , Idoso de 80 Anos ou mais , Angiografia Cerebral , Feminino , Humanos , Aneurisma Intracraniano/diagnóstico por imagem , Masculino , Pessoa de Meia-Idade , Estudos Prospectivos , Resultado do Tratamento
13.
Neurology ; 78(23): 1841-8, 2012 Jun 05.
Artigo em Inglês | MEDLINE | ID: mdl-22665144

RESUMO

OBJECTIVE: To determine the cognitive effects of long-term dietary soy isoflavones in a daily dose comparable to that of traditional Asian diets. METHODS: In the double-blind Women's Isoflavone Soy Health trial, healthy postmenopausal women were randomly allocated to receive daily 25 g of isoflavone-rich soy protein (91 mg of aglycone weight of isoflavones: 52 mg of genistein, 36 mg of daidzein, and 3 mg glycitein) or milk protein-matched placebo. The primary cognitive endpoint compared between groups at 2.5 years was change from baseline on global cognition, a composite of the weighted sum of 14 neuropsychological test score changes. Secondary outcomes compared changes in cognitive factors and individual tests. RESULTS: A total of 350 healthy postmenopausal women aged 45-92 years enrolled in this trial; 313 women with baseline and endpoint cognitive test data were included in intention-to-treat analyses. Adherence in both groups was nearly 90%. There was no significant between-group difference on change from baseline in global cognition (mean standardized improvement of 0.42 in the isoflavone group and 0.31 in the placebo group; mean standardized difference 0.11, 95% confidence interval [CI] -0.13 to 0.35). Secondary analyses indicated greater improvement on a visual memory factor in the isoflavone group (mean standardized difference 0.33, 95% CI 0.06-0.60) but no significant between-group differences on 3 other cognitive factors or individual test scores, and no significant difference within a subgroup of younger postmenopausal women. CONCLUSION: For healthy postmenopausal women, long-term dietary soy isoflavone supplementation in a dose comparable to that of traditional Asian diets has no effect on global cognition but may improve visual memory. CLASSIFICATION OF EVIDENCE: This study provides Class I evidence that long-term dietary supplementation with isoflavone-rich soy protein does not improve global cognition of healthy postmenopausal women.


Assuntos
Cognição/fisiologia , Suplementos Nutricionais , Isoflavonas/administração & dosagem , Memória/fisiologia , Proteínas de Soja/administração & dosagem , Saúde da Mulher , Idoso , Idoso de 80 Anos ou mais , Método Duplo-Cego , Feminino , Humanos , Pessoa de Meia-Idade , Pós-Menopausa/efeitos dos fármacos , Pós-Menopausa/psicologia , Fatores de Tempo , Saúde da Mulher/estatística & dados numéricos
14.
Climacteric ; 15(3): 217-28, 2012 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-22612607

RESUMO

Over the past decade, two informative events in primary prevention of coronary heart disease (CHD) have occurred for women's health. The first concerns hormone replacement therapy (HRT) where data have come full circle from presumed harm to consistency with observational data that HRT initiation in close proximity to menopause significantly reduces CHD and overall mortality. The other concerns sex-specific efficacy of CHD primary prevention therapies where lipid-lowering and aspirin therapy have not been conclusively shown to significantly reduce CHD and, more importantly, where there is lack of evidence that either therapy reduces overall mortality in women. Cumulated data support a 'window-of-opportunity' for maximal reduction of CHD and overall mortality and minimization of risks with HRT initiation before 60 years of age and/or within 10 years of menopause and continued for 6 years or more. There is a substantial increase in quality-adjusted life-years over a 5-30-year period in women who initiate HRT in close proximity to menopause, supporting HRT as a highly cost-effective strategy for improving quality-adjusted life. Although primary prevention therapies and HRT contrast in their efficacy to significantly reduce CHD and especially overall mortality in postmenopausal women, the magnitude and types of risks associated with HRT are similar to those associated with other medications commonly used in women's health. The cumulated data highlight the importance of studying the HRT cardioprotective hypothesis in women representative of those from whom the hypothesis was generated.


Assuntos
Doença das Coronárias/prevenção & controle , Terapia de Reposição de Estrogênios/tendências , Terapia de Reposição de Estrogênios/efeitos adversos , Feminino , Humanos , Menopausa , Pessoa de Meia-Idade , Pós-Menopausa , Qualidade de Vida , Medição de Risco , Fatores de Risco , Fatores de Tempo , Saúde da Mulher
15.
Interv Neuroradiol ; 17(1): 93-103, 2011 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-21561565

RESUMO

Dural arteriovenous fistulas (dAVFs) of the anterior cranial fossa have traditionally been treated by open surgical disconnection. Safe navigation through the ophthalmic artery or fragile cortical veins has historically provided a barrier to effective endovascular occlusion of these lesions. Using current microcatheter technology and embolic materials, safe positioning within the distal ophthalmic artery, beyond the origin of the central retinal artery, is achievable. We describe two cases in which anterior cranial fossa dAVFs were treated by exclusively endovascular strategies, and highlight the pertinent technical and anatomic considerations. We discuss the clinical symptoms resulting from the differing venous drainage patterns.


Assuntos
Fístula Arteriovenosa/patologia , Fístula Arteriovenosa/terapia , Fossa Craniana Anterior/anatomia & histologia , Fossa Craniana Anterior/irrigação sanguínea , Embolização Terapêutica/métodos , Fístula Arteriovenosa/diagnóstico por imagem , Artérias Carótidas/anatomia & histologia , Artérias Carótidas/diagnóstico por imagem , Angiografia Cerebral , Veias Cerebrais/anatomia & histologia , Fossa Craniana Anterior/diagnóstico por imagem , Feminino , Humanos , Imageamento Tridimensional , Masculino , Pessoa de Meia-Idade
16.
Climacteric ; 14(1): 49-53, 2011 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-20450412

RESUMO

OBJECTIVE: A considerable number of postmenopausal women who receive estrogen therapy are also treated for hypercholesterolemia with cholesterol-lowering statins. Statins and steroid hormones can compete for the same steroid-metabolizing enzymes. We investigated whether long-term administration of statins had an effect on serum estrogen and androgen levels in postmenopausal women receiving and not receiving oral estrogen therapy. METHODS: A subgroup analysis from the Estrogen in the Prevention of Atherosclerosis Trial, a randomized, double-blind, placebo-controlled trial, was performed. A total of 222 women were randomized to receive either placebo or 1 mg of oral micronized 17ß-estradiol daily for 2 years. In both the placebo and treatment groups, participants with low density lipoprotein cholesterol levels >160 mg/dl were treated with statins. Blood samples were obtained at baseline and every 6 months during the trial. Serum levels of dehydroepiandrosterone, androstenedione, testosterone, estrone and 17ß-estradiol were measured by radioimmunoassay. RESULTS: Among 86 placebo- and 90 estradiol-treated subjects with baseline and on-trial hormone measurements, no significant differences were observed between the statin-free and statin-treated groups in mean changes from baseline to on-trial levels in any of the androgens or estrogens, whether or not the postmenopausal women were treated with estrogen. CONCLUSION: The results suggest that estrogen therapy and statins can be used simultaneously with no deleterious effects on circulating hormone levels.


Assuntos
Estradiol/uso terapêutico , Estrogênios/uso terapêutico , Hormônios Esteroides Gonadais/sangue , Inibidores de Hidroximetilglutaril-CoA Redutases/uso terapêutico , LDL-Colesterol/sangue , Método Duplo-Cego , Feminino , Humanos , Pessoa de Meia-Idade , Pós-Menopausa
17.
J Dent Res ; 89(10): 1074-9, 2010 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-20671205

RESUMO

The relationship among oral and systemic health and HIV shedding in saliva is not well-understood. We hypothesized that oral and systemic health are associated with HIV shedding in saliva of HIV-infected women. Saliva from 127 participants enrolled in the Women's Interagency HIV Study (WIHS) was collected at repeated visits over a 5½-year study period (October 1998 through March 2004) and was evaluated for HIV-1 RNA. Demographic, lifestyle, and systemic and oral health characteristics were evaluated as possible correlates of salivary HIV-1 shedding. Multivariate models showed significantly increased risk of HIV-1 shedding in saliva as blood levels of CD4 cell counts decreased (p < 0.0001) and HIV RNA increased (p < 0.0001). Diabetes (p = 0.002) and a high proportion of gingival bleeding sites (p = 0.01) were associated with increased likelihood, while anti-retroviral therapy (p = 0.0003) and higher levels of stimulated saliva flow rates (p = 0.02) were associated with a lower likelihood of HIV-1 RNA shedding in saliva.


Assuntos
Soropositividade para HIV/virologia , HIV-1/fisiologia , Nível de Saúde , Saúde Bucal , Saliva/virologia , Eliminação de Partículas Virais/fisiologia , Adulto , Consumo de Bebidas Alcoólicas , Fármacos Anti-HIV/uso terapêutico , Contagem de Linfócito CD4 , Índice CPO , Índice de Placa Dentária , Diabetes Mellitus Tipo 2/complicações , Feminino , Seguimentos , Hemorragia Gengival/virologia , HIV-1/genética , Humanos , Estilo de Vida , Estudos Longitudinais , Pessoa de Meia-Idade , Índice Periodontal , RNA Viral/análise , Saliva/metabolismo , Taxa Secretória/fisiologia , Transtornos Relacionados ao Uso de Substâncias
18.
Climacteric ; 12 Suppl 1: 71-5, 2009.
Artigo em Inglês | MEDLINE | ID: mdl-19811246

RESUMO

The discordance in coronary heart disease (CHD) outcome between randomized, controlled trials and observational studies of hormone replacement therapy (HRT) is likely the result of the dissimilar cohorts studied. This observation led to the formation of the timing hypothesis that benefits and risks of HRT depend upon age of HRT initiation and/or time of HRT initiation in relation to menopause. This hypothesis has been supported with data from large, randomized, controlled trials that have studied HRT and selective estrogen receptor modulators (SERMs) in the prevention of CHD. Initiation of HRT in women <60 years of age and/or within 10 years of menopause reduces both CHD and total mortality; SERMs have been shown to reduce CHD in women <60 years. What has become clear from the cumulated literature is that in young postmenopausal women who initiate HRT in close proximity to menopause, the adverse effects of HRT are rare and no greater than those of other commonly used pharmacological agents and that the primary prevention benefits for CHD are at least equivalent to those of other commonly used therapies. Additionally, the literature indicates that the duration of HRT confers greater CHD benefit especially in women <60 years who initiate therapy. The cumulated literature dispels misperceptions concerning HRT and CHD.


Assuntos
Doença das Coronárias/prevenção & controle , Terapia de Reposição de Estrogênios , Fatores Etários , Estudos de Casos e Controles , Estudos de Coortes , Doença das Coronárias/mortalidade , Terapia de Reposição de Estrogênios/efeitos adversos , Feminino , Humanos , Pós-Menopausa/fisiologia , Ensaios Clínicos Controlados Aleatórios como Assunto , Medição de Risco
19.
Oral Dis ; 15(1): 52-60, 2009 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-19017280

RESUMO

OBJECTIVE: To determine the impact of highly active antiretroviral therapy (HAART) on salivary gland function in human immunodeficiency virus (HIV) positive women from the Women's Interagency HIV Study (WIHS). DESIGN: Longitudinal cohort study. SUBJECTS AND METHODS: A total of 668 HIV positive women from the WIHS cohort with an initial and at least one follow-up oral sub-study visit contributed 5358 visits. Salivary gland function was assessed based on a dry mouth questionnaire, whole unstimulated and stimulated salivary flow rates, salivary gland enlargement or tenderness and lack of saliva on palpation of the major salivary glands. MAIN OUTCOME MEASURES: Changes in unstimulated and stimulated flow rates at any given visit from that of the immediate prior visit (continuous variables). The development of self-reported dry mouth (present/absent), enlargement or tenderness of salivary glands (present/absent), and absence of secretion on palpation of the salivary glands were binary outcomes (yes/no). RESULTS: Protease Inhibitor (PI) based HAART was a significant risk factor for developing decreased unstimulated (P = 0.01) and stimulated (P = 0.0004) salivary flow rates as well as salivary gland enlargement (P = 0.006) as compared with non-PI based HAART. CONCLUSIONS: PI-based HAART therapy is a significant risk factor for developing reduced salivary flow rates and salivary gland enlargement in HIV positive patients.


Assuntos
Terapia Antirretroviral de Alta Atividade , Soropositividade para HIV/tratamento farmacológico , Glândulas Salivares/efeitos dos fármacos , Adolescente , Adulto , Idoso , Fármacos Anti-HIV/efeitos adversos , Fármacos Anti-HIV/uso terapêutico , Terapia Antirretroviral de Alta Atividade/efeitos adversos , Contagem de Linfócito CD4 , Estudos de Coortes , Feminino , Seguimentos , HIV/genética , Inibidores da Protease de HIV/efeitos adversos , Inibidores da Protease de HIV/uso terapêutico , Transcriptase Reversa do HIV/antagonistas & inibidores , Humanos , Estudos Longitudinais , Pessoa de Meia-Idade , RNA Viral/análise , Inibidores da Transcriptase Reversa/efeitos adversos , Inibidores da Transcriptase Reversa/uso terapêutico , Fatores de Risco , Saliva/efeitos dos fármacos , Saliva/metabolismo , Taxa Secretória/efeitos dos fármacos , Sialadenite/induzido quimicamente , Xerostomia/induzido quimicamente , Adulto Jovem
20.
Community Dent Oral Epidemiol ; 36(6): 549-57, 2008 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-18782330

RESUMO

OBJECTIVES: Objective measures of dental diseases reflect only their clinical end-point. There is a need to use multidimensional measures of diseases that consider their psychosocial aspects and functional impact. The aim of this study is to compare the oral health-related quality of life (OHRQOL) between a group of HIV-infected women and a similar group of at-risk HIV-uninfected women, and to investigate the role of potential confounding clinical oral health and behavioral factors. METHODS: Our sample included HIV-infected women (87%) and women at risk for HIV infection (13%) followed up for 5.5 years. OHRQOL was measured using the short version of the Oral Health Impact Profile (OHIP-14), which is a validated and reliable instrument. RESULTS: HIV-infected women averaged 10% poorer OHRQOL than HIV-uninfected women; this difference was not apparent after adjusting for the number of study visits attended and significant behavioral and clinical oral health factors. The OHRQOL was inversely related to dental and periodontal diseases and to smoking and freebase cocaine use; these relationships were not confounded by HIV status. CONCLUSIONS: The study identified specific clinical and behavioral factors where dental professionals can intervene to possibly improve the OHRQOL of HIV-infected or at-risk HIV-uninfected women.


Assuntos
Cárie Dentária/psicologia , Infecções por HIV/psicologia , Doenças Periodontais/psicologia , Qualidade de Vida , Perfil de Impacto da Doença , Adulto , Fatores de Confusão Epidemiológicos , Cárie Dentária/complicações , Feminino , Infecções por HIV/complicações , Humanos , Modelos Lineares , Pessoa de Meia-Idade , Grupos Minoritários , Saúde Bucal , Doenças Periodontais/complicações , Pobreza , Populações Vulneráveis , Xerostomia/complicações , Xerostomia/psicologia , Adulto Jovem
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