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1.
Obstet Gynecol ; 143(2): 277-280, 2024 Feb 01.
Artigo em Inglês | MEDLINE | ID: mdl-38033320

RESUMO

We aimed to evaluate physiologic treatment of severe hypertension. This was a retrospective cohort study of pregnant and postpartum patients with severe hypertension (systolic blood pressure [BP] 160 mm Hg or higher or diastolic BP 110 mm Hg or higher) treated with intravenous labetalol or hydralazine at a single tertiary care center between 2013 and 2018. Patients were classified as having physiologic treatment if they had hyperdynamic physiology (pulse pressure 65 mm Hg or higher) and received labetalol or had vasoconstrictive physiology (diastolic BP 100 mm Hg or higher) and received hydralazine. The primary outcome was number of antihypertensive doses to achieve nonsevere BP. Of 1,120 patients included in the analysis, 653 had physiologic treatment and 467 had nonphysiologic treatment, with 16 (1.4%) excluded for inability to classify physiology. Physiologic treatment was associated with fewer antihypertensive doses (1.4±0.9 doses vs 1.6±1.4 doses; adjusted ß -0.28, 95% CI, -0.42 to -0.14) and lower odds of medication conversion (2.5% vs 4.7%; adjusted odds ratio 0.48, 95% CI, 0.24-0.93) but no difference in time to nonsevere BP (31 minutes [interquartile range 16-66 minutes] vs 34 minutes [interquartile range 15-76 minutes]; adjusted hazard ratio 1.0, 95% CI, 0.9-1.2). Physiologic treatment of severe hypertension warrants further evaluation.


Assuntos
Hipertensão , Labetalol , Feminino , Humanos , Gravidez , Anti-Hipertensivos , Pressão Sanguínea , Hidralazina/efeitos adversos , Hipertensão/tratamento farmacológico , Nifedipino/uso terapêutico , Período Pós-Parto , Estudos Retrospectivos , Hipertensão Induzida pela Gravidez
2.
Obstet Gynecol ; 142(5): 1179-1188, 2023 Nov 01.
Artigo em Inglês | MEDLINE | ID: mdl-37769308

RESUMO

OBJECTIVE: To evaluate the efficacy of occipital nerve block compared with standard care , defined as acetaminophen with caffeine, for treatment of acute headache in pregnancy. METHODS: We conducted a single-center, unblinded, parallel, randomized controlled trial of pregnant patients with headache and pain score higher than 3 on the visual rating scale. Patients with secondary headache, preeclampsia, or allergy or contraindication to study medications were excluded. Participants were randomized to occipital nerve block or standard care (oral 650 mg acetaminophen and 200 mg caffeine). Crossover treatment was given at 2 hours and second-line treatment at 4 hours to those with worsening visual rating scale score or visual rating scale score higher than 3. The primary outcome was headache improvement to a visual rating scale score of 3 or lower within 2 hours of initial therapy. Secondary outcomes included serial visual rating scale scores, receipt of crossover or second-line therapy, patient satisfaction, and perinatal outcomes. Outcomes were assessed in an intention-to-treat analysis. We estimated that a sample of 62 would provide 80% power to detect a difference from 85% to 50% between groups. RESULTS: From February 2020 to May 2022, 62 participants were randomized to occipital nerve block (n=31) or standard care (n=31). Groups were similar except payer status. The primary outcome, headache improvement to visual rating scale score of 3 or lower, was not significantly different between groups (64.5% vs 51.6%, P =.30). The occipital nerve block group experienced lower median [interquartile range] visual rating scale scores at 1 hour (2 [0-5] vs 6 [2-7], P =.014), and more patients in the occipital nerve block group had visual rating scale scores of 3 or lower at 1 hour. Among patients receiving crossover treatment at 2 hours, the standard care group had a significantly lower visual rating scale score 1 hour after crossover to occipital nerve block than the occipital nerve block group receiving crossover to standard care ( P =.028). There were no significant differences in second-line treatment, refractory headache, satisfaction, or complications. Patients receiving occipital nerve block delivered earlier (36.6 weeks vs 37.8 weeks), but preterm birth did not differ between groups. CONCLUSION: Occipital nerve block is an effective and quick-acting treatment option for acute headache in pregnancy. CLINICAL TRIAL REGISTRATION: ClinicalTrials.gov , NCT03951649.


Assuntos
Bloqueio Nervoso , Nascimento Prematuro , Recém-Nascido , Feminino , Humanos , Gravidez , Acetaminofen/uso terapêutico , Cafeína , Anestésicos Locais , Resultado do Tratamento , Cefaleia/tratamento farmacológico
3.
J Vis Exp ; (184)2022 06 07.
Artigo em Inglês | MEDLINE | ID: mdl-35758705

RESUMO

At the neuromuscular junction (NMJ), the binding of the excitatory neurotransmitter acetylcholine (ACh) to postsynaptic receptors leads to muscle contraction. As in vertebrate skeletal muscle, cholinergic signaling in the body wall muscles of the model organism Caenorhabditis elegans is required for locomotion. Exposure to levamisole, a pharmacological agonist of one class of ACh receptors on the body wall muscles, causes time-dependent paralysis of wild-type animals. Altered sensitivity to levamisole suggests defects in signaling at the NMJ or muscle function. Here, a protocol for a liquid levamisole assay performed on C. elegans grown in 24-well plates is presented. Vigorous swimming of the animals in liquid allows for the assessment and quantitation of levamisole-induced paralysis in hundreds of worms over a one-hour time period without requiring physical manipulation. This procedure can be used with both wild-type and mutants that have altered sensitivity to levamisole to demonstrate the functional consequences of altered signaling at the NMJ.


Assuntos
Proteínas de Caenorhabditis elegans , Receptores Nicotínicos , Animais , Caenorhabditis elegans/metabolismo , Proteínas de Caenorhabditis elegans/metabolismo , Levamisol/metabolismo , Levamisol/farmacologia , Paralisia , Parassimpatomiméticos , Receptores Colinérgicos/metabolismo , Receptores Nicotínicos/metabolismo
4.
Clin Cancer Res ; 28(7): 1433-1445, 2022 04 01.
Artigo em Inglês | MEDLINE | ID: mdl-35031546

RESUMO

PURPOSE: Our study used transcriptomic and metabolomic strategies to determine the molecular profiles of HGSOC patient samples derived from primary tumor and ascites cells. These data identified clinically relevant heterogeneity among and within patients and highlighted global and patient-specific cellular responses to neoadjuvant chemotherapy (NACT). EXPERIMENTAL DESIGN: Tissue from 61 treatment-naïve patients with HGSOC were collected. In addition, 11 benign, 32 ascites, and 18 post-NACT samples (matched to the individual patient's pre-NACT sample) were collected. RNA sequencing (RNA-seq) was performed on all samples collected. Two-dimensional spatial proteomic data was collected for two pairs of pre- and post-NACT. Untargeted metabolomics data using GCxGC-MS was generated for 30 treatment-naive tissues. Consensus clustering, analysis of differential expression, pathway enrichment, and survival analyses were performed. RESULTS: Treatment-naïve HGSOC tissues had distinct transcriptomic and metabolomic profiles. The mesenchymal subtype harbored a metabolomic profile distinct from the other subtypes. Compared with primary tumor tissue, ascites showed significant changes in immune response and signaling pathways. NACT caused significant alterations in gene expression and WNT activity, and this corresponded to altered immune response. Overall, WNT signaling levels were inversely correlated with immune cell infiltration in HGSOC tissues and WNT signaling post-NACT was inversely correlated with progression-free survival. CONCLUSIONS: Our study concluded that HGSOC is a heterogenous disease at baseline and growing molecular differences can be observed between primary tumor and ascites cells or within tumors in response to treatment. Our data reveal potential exploratory biomarkers relevant for treatment selection and predicting patient outcomes that warrant further research.


Assuntos
Neoplasias Ovarianas , Via de Sinalização Wnt , Humanos , Imunidade , Terapia Neoadjuvante , Neoplasias Ovarianas/patologia , Proteômica
5.
OTJR (Thorofare N J) ; 42(1): 30-39, 2022 01.
Artigo em Inglês | MEDLINE | ID: mdl-34496711

RESUMO

Subthreshold vibratory stimulation to the paretic wrist has been shown to prime the sensorimotor cortex and improve 2-week upper extremity (UE) therapy outcomes. The objective of this work was to determine feasibility, safety, and preliminary efficacy of the stimulation over a typical 6-week therapy duration. Four chronic stroke survivors received stimulation during 6-week therapy. Feasibility/safety/efficacy were assessed at baseline, posttherapy, and 1-month follow-up. For feasibility, all participants wore the device throughout therapy and perceived the stimulation comfortable/safe. Regarding safety, no serious/moderate intervention-related adverse events occurred. For efficacy, all participants improved in Wolf Motor Function Test and UE use in daily living based on accelerometry and stroke impact scale. Mean improvements at posttherapy/follow-up were greater than the minimal detectable change/clinically important difference and other trials with similar therapy without stimulation. In conclusion, the stimulation was feasible/safe for 6-week use. Preliminary efficacy encourages a larger trial to further evaluate the stimulation as a therapy adjunct.


Assuntos
Reabilitação do Acidente Vascular Cerebral , Acidente Vascular Cerebral , Acelerometria , Humanos , Recuperação de Função Fisiológica , Resultado do Tratamento , Extremidade Superior
6.
J Am Board Fam Med ; 33(2): 262-270, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32179609

RESUMO

BACKGROUND: Prediabetes is increasing in prevalence and is associated with risk of developing diabetes, heart disease, stroke, and retinopathy. Clinicians have limited tools to facilitate prediabetes discussions within primary care visits. PURPOSE: 1) Develop a Patient and Stakeholder Advisory Committee (PASAC) to design, evaluate, and revise a prediabetes shared decision aid, and 2) evaluate the feasibility and experience of implementing the tool within primary care practice. METHODS: A prediabetes decision aid (double-sided infographic with decision questions) was created by a PASAC that included patients, primary care clinicians, diabetes educators, endocrinologists, and pharmacists. Five clinicians within 3 primary care practices tested the prediabetes tool with 50 adult patients with prediabetes. Patients completed 2 surveys immediately after the office visit and 6 weeks later. Clinicians and PASAC members completed a postintervention survey. RESULTS: The prediabetes shared decision aid was created through a deliberative process over 3 PASAC meetings. Ninety-six percent of patients felt the tool prepared them to decide on a diabetes prevention plan, and 100% of clinicians would use the tool again and felt the tool did not extend visit length. DISCUSSION: It was feasible to cocreate a prediabetes shared decision aid within a PASAC and implement the tool within a primary care setting. Patients and clinicians reported a prediabetes discussion, which may mitigate rates of progression to diabetes and associated complications. Future research should evaluate which of the intervention components most effectively promotes discussion of prediabetes within a primary care setting.


Assuntos
Diabetes Mellitus , Estado Pré-Diabético , Adulto , Técnicas de Apoio para a Decisão , Humanos , Farmacêuticos , Estado Pré-Diabético/diagnóstico , Estado Pré-Diabético/terapia , Atenção Primária à Saúde
7.
Gynecol Oncol ; 156(2): 301-307, 2020 02.
Artigo em Inglês | MEDLINE | ID: mdl-31870556

RESUMO

OBJECTIVE: To compare the combination of a MEK inhibitor (pimasertib) and a PI3K inhibitor (SAR245409) to pimasertib alone in recurrent unresectable borderline/low malignant potential (LMP) or low-grade serous ovarian carcinoma (LGSOC), determining whether combination is superior. METHODS: Patients with previously treated, recurrent LMP or LGSOC with measurable disease received either combination of pimasertib (60 mg daily) + SAR245409 (SAR) (70 mg daily) or pimasertib alone (60 mg BID) until progression or unacceptable toxicity. Primary endpoint was objective response rate (ORR) by RECIST 1.1, determining whether combination was superior to pimasertib alone. Secondary endpoints included progression free survival (PFS), disease control, and adverse events. RESULTS: Sixty-five patients were randomized between September 2012 and December 2014. ORR was 9.4% (80% CI, 3.5 to 19.7) in the combination arm and 12.1% (80% CI, 5.4 to 22.8) in the pimasertib alone arm. Median PFS was 7.23 months (80% CI, 5.06 to -) and 9.99 (80% CI, 7.39 to 10.35) for pimasertib alone and pimasertib + SAR, respectively. Six-month PFS was 63.5% (80% CI, 47.2% to 75.9%) and 70.8% (80% CI, 56.9% to 80.9%). Eighteen (56.3%) patients in the combination arm and 19 (57.6%) patients in the pimasertib alone arm discontinued the trial. The study was terminated early because of low ORR and high rate of discontinuation. CONCLUSIONS: Response to pimasertib alone (ORR 12%) suggests that MEK inhibition could be used as an alternative treatment method to cytotoxic chemotherapy in this population. The MEK inhibitor alone was as effective as the combination, although the trial was limited by small numbers. Additional studies investigating the role of single agent or combination MEK and PI3K inhibition are warranted to further evaluate the utility of these treatments and describe a standard of care for LGSOC.


Assuntos
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Recidiva Local de Neoplasia/tratamento farmacológico , Niacinamida/análogos & derivados , Neoplasias Ovarianas/tratamento farmacológico , Neoplasias Ovarianas/enzimologia , Adulto , Idoso , Método Duplo-Cego , Feminino , Humanos , MAP Quinase Quinase 1/antagonistas & inibidores , MAP Quinase Quinase 1/metabolismo , MAP Quinase Quinase 2/antagonistas & inibidores , MAP Quinase Quinase 2/metabolismo , Pessoa de Meia-Idade , Gradação de Tumores , Recidiva Local de Neoplasia/enzimologia , Recidiva Local de Neoplasia/patologia , Estadiamento de Neoplasias , Niacinamida/administração & dosagem , Niacinamida/uso terapêutico , Neoplasias Ovarianas/patologia , Fosfatidilinositol 3-Quinases/metabolismo , Inibidores de Fosfoinositídeo-3 Quinase/administração & dosagem , Inibidores de Proteínas Quinases/administração & dosagem , Quinoxalinas/administração & dosagem , Sulfonamidas/administração & dosagem , Serina-Treonina Quinases TOR/antagonistas & inibidores , Serina-Treonina Quinases TOR/metabolismo , Adulto Jovem
8.
J Phys Act Health ; 17(1): 21-28, 2020 01 01.
Artigo em Inglês | MEDLINE | ID: mdl-31698336

RESUMO

BACKGROUND: Step-counting interventions with discrepant intensity emphases may elicit different effects. METHODS: A total of 120 sedentary/low-active, postmenopausal women were randomly assigned to one of the following 3 groups: (1) 10,000 steps per day (with no emphasis on walking intensity/speed/cadence; basic intervention, 49 completers), (2) 10,000 steps per day and at least 30 minutes in moderate intensity (ie, at a cadence of at least 100 steps per minute; enhanced intervention, 47 completers), or (3) a control group (19 completers). NL-1000-determined steps and active minutes (a device-specific indicator of time at moderate+ intensity) were collected as process variables during the 12-week intervention. Outcome variables included systolic and diastolic blood pressure, anthropometric measurements, fasting blood glucose and insulin, flow-mediated dilation, gait speed, and ActiGraph GT3X+-determined physical activity and sedentary behavior. RESULTS: The "basic group" increased 5173 to 9602 steps per day and 9.2 to 30.2 active minutes per day. The "enhanced group" similarly increased 5061 to 10,508 steps per day and 8.7 to 38.8 active minutes per day. The only significant change over time for clinical variables was body mass index. CONCLUSIONS: Interventions that use simple step-counters can achieve elevated volume and intensity of daily physical activity, regardless of emphasis on intensity. Despite this, few clinical outcomes were apparent in this sample of postmenopausal women with generally normal or controlled hypertension.


Assuntos
Exercício Físico/fisiologia , Caminhada/fisiologia , Idoso , Feminino , Humanos , Pessoa de Meia-Idade
9.
Gynecol Oncol ; 155(2): 201-206, 2019 11.
Artigo em Inglês | MEDLINE | ID: mdl-31522837

RESUMO

OBJECTIVES: Patients with epithelial ovarian cancer (EOC) recurring between 6 and 12 months after primary platinum chemotherapy have worse prognosis than those recurring in >12 months. Artificially prolonging the platinum-free interval (PFI) with cytotoxic chemotherapy was tested in MITO-8 with poor outcomes. This study aimed to determine the impact of using non-platinum or targeted therapy in 2nd line treatment of EOC patients recurring 6-12 months after completion of primary platinum-based chemotherapy. METHODS: A multi-institutional retrospective review of 177 patients with recurrent EOC and PFI of 6-12 months following primary chemotherapy was performed comparing platinum versus non-platinum chemotherapy or targeted therapy for 2nd line treatment. PFI1 was defined as the date of last chemotherapy to date of recurrence. PFS2/3 were defined as start of 2nd or 3rd line chemotherapy to start of subsequent line. RESULTS: Of 177 patients, the majority of patients were Caucasian, had serous histology, and underwent primary cytoreductive surgery. Median PFI1 was 8.2 months (95% CI 8-9 months). Second line platinum was omitted in 28% of patients. Bevacizumab was used in 2nd line in 16% of patients; 19% received other targeted therapies. Median PFS2 for platinum chemotherapy was longer than non-platinum (7.1 vs 3 months, p = 0.0114). Median PFS2 was significantly longer for platinum vs. targeted therapy (7.1 vs. 3 months p = 0.0431). Median OS for platinum in 2nd line vs. no platinum was 43.6 vs. 37.6 months (p = 0.0174). CONCLUSIONS: Use of non-platinum chemotherapy and even targeted therapy to prolong PFI in patients with EOC recurring between 6 and 12 months leads to worse survival.


Assuntos
Antineoplásicos/uso terapêutico , Neoplasias Ovarianas/tratamento farmacológico , Compostos de Platina/uso terapêutico , Adulto , Idoso , Idoso de 80 Anos ou mais , Bevacizumab/uso terapêutico , Progressão da Doença , Intervalo Livre de Doença , Feminino , Humanos , Pessoa de Meia-Idade , Terapia de Alvo Molecular/métodos , Terapia de Alvo Molecular/mortalidade , Recidiva Local de Neoplasia/etiologia , Recidiva Local de Neoplasia/mortalidade , Neoplasias Ovarianas/mortalidade , Estudos Retrospectivos , Resultado do Tratamento
11.
Behav Cogn Psychother ; 46(5): 554-569, 2018 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-29485021

RESUMO

BACKGROUND: Self-report instruments are commonly used to assess for childhood depressive symptoms. Historically, clinicians have relied heavily on parent-reports due to concerns about childrens' cognitive abilities to understand diagnostic questions. However, parents may also be unreliable reporters due to a lack of understanding of their child's symptomatology, overshadowing by their own problems, and tendencies to promote themselves more favourably in order to achieve desired assessment goals. One such variable that can lead to unreliable reporting is impression management, which is a goal-directed response in which an individual (e.g. mother or father) attempts to represent themselves, or their child, in a socially desirable way to the observer. AIMS: This study examined the relationship between mothers who engage in impression management, as measured by the Parenting Stress Index-Short Form defensive responding subscale, and parent-/child-self-reports of depressive symptomatology in 106 mother-child dyads. METHODS: 106 clinic-referred children (mean child age = 10.06 years, range 7-16 years) were administered the Child Depression Inventory, and mothers (mean mother age = 40.80 years, range 27-57 years) were administered the Child-Behavior Checklist, Parenting Stress Index-Short Form, and Symptom Checklist-90-Revised. RESULTS: As predicted, mothers who engaged in impression management under-reported their child's symptomatology on the anxious/depressed and withdrawn subscales of the Child Behavior Checklist. Moreover, the relationship between maternal-reported child depressive symptoms and child-reported depressive symptoms was moderated by impression management. CONCLUSIONS: These results suggest that children may be more reliable reporters of their own depressive symptomatology when mothers are highly defensive or stressed.


Assuntos
Mecanismos de Defesa , Depressão/diagnóstico , Depressão/psicologia , Conhecimentos, Atitudes e Prática em Saúde , Mães/psicologia , Autorrelato/normas , Adolescente , Adulto , Ansiedade/diagnóstico , Ansiedade/psicologia , Criança , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Relações Mãe-Filho/psicologia , Poder Familiar/psicologia , Estresse Psicológico/psicologia
12.
JMIR Mhealth Uhealth ; 5(9): e133, 2017 Sep 13.
Artigo em Inglês | MEDLINE | ID: mdl-28903892

RESUMO

BACKGROUND: Two-thirds of pregnant women exceed gestational weight gain (GWG) recommendations. Because excess GWG is associated with adverse outcomes for mother and child, development of scalable and cost-effective approaches to deliver intensive lifestyle programs during pregnancy is urgent. OBJECTIVE: The aim of this study was to decrease the proportion of women who exceed the Institute of Medicine (IOM) 2009 GWG guidelines. METHODS: In a parallel-arm randomized controlled trial, 54 pregnant women (age 18-40 years) who were overweight (n=25) or obese (n=29) were enrolled to test whether an intensive lifestyle intervention (called SmartMoms) decreased the proportion of women with excess GWG, defined as exceeding the 2009 IOM guidelines, compared to no intervention (usual care group). The SmartMoms intervention was delivered through mobile phone (remote group) or in a traditional in-person, clinic-based setting (in-person group), and included a personalized dietary intake prescription, self-monitoring weight against a personalized weight graph, activity tracking with a pedometer, receipt of health information, and continuous personalized feedback from counselors. RESULTS: A significantly smaller proportion of women exceeded the IOM 2009 GWG guidelines in the SmartMoms intervention groups (in-person: 56%, 10/18; remote: 58%, 11/19) compared to usual care (85%, 11/13; P=.02). The remote intervention was a lower cost to participants (mean US $97, SD $6 vs mean US $347, SD $40 per participant; P<.001) and clinics (US $215 vs US $419 per participant) and with increased intervention adherence (76.5% vs 60.8%; P=.049). CONCLUSIONS: An intensive lifestyle intervention for GWG can be effectively delivered via a mobile phone, which is both cost-effective and scalable. TRIAL REGISTRATION: Clinicaltrials.gov NCT01610752; https://clinicaltrials.gov/ct2/show/NCT01610752 (Archived by WebCite at http://www.webcitation.org/6sarNB4iW).

13.
Nat Commun ; 8(1): 103, 2017 07 24.
Artigo em Inglês | MEDLINE | ID: mdl-28740126

RESUMO

Muscle-invasive bladder cancer (MIBC) is an aggressive disease with limited therapeutic options. Although immunotherapies are approved for MIBC, the majority of patients fail to respond, suggesting existence of complementary immune evasion mechanisms. Here, we report that the PPARγ/RXRα pathway constitutes a tumor-intrinsic mechanism underlying immune evasion in MIBC. Recurrent mutations in RXRα at serine 427 (S427F/Y), through conformational activation of the PPARγ/RXRα heterodimer, and focal amplification/overexpression of PPARγ converge to modulate PPARγ/RXRα-dependent transcription programs. Immune cell-infiltration is controlled by activated PPARγ/RXRα that inhibits expression/secretion of inflammatory cytokines. Clinical data sets and an in vivo tumor model indicate that PPARγHigh/RXRαS427F/Y impairs CD8+ T-cell infiltration and confers partial resistance to immunotherapies. Knockdown of PPARγ or RXRα and pharmacological inhibition of PPARγ significantly increase cytokine expression suggesting therapeutic approaches to reviving immunosurveillance and sensitivity to immunotherapies. Our study reveals a class of tumor cell-intrinsic "immuno-oncogenes" that modulate the immune microenvironment of cancer.Muscle-invasive bladder cancer (MIBC) is a potentially lethal disease. Here the authors characterize diverse genetic alterations in MIBC that convergently lead to constitutive activation of PPARgamma/RXRalpha and result in immunosurveillance escape by inhibiting CD8+ T-cell recruitment.


Assuntos
Evasão da Resposta Imune/imunologia , Monitorização Imunológica , PPAR gama/imunologia , Receptor X Retinoide alfa/imunologia , Neoplasias da Bexiga Urinária/imunologia , Animais , Linfócitos T CD8-Positivos/imunologia , Linfócitos T CD8-Positivos/metabolismo , Linhagem Celular Tumoral , Citocinas/genética , Citocinas/imunologia , Citocinas/metabolismo , Perfilação da Expressão Gênica/métodos , Células HCT116 , Humanos , Immunoblotting , Imunoterapia/métodos , Mediadores da Inflamação/imunologia , Mediadores da Inflamação/metabolismo , Camundongos , Microscopia de Fluorescência , Mutação/imunologia , Invasividade Neoplásica , PPAR gama/química , PPAR gama/genética , Multimerização Proteica/imunologia , Receptor X Retinoide alfa/química , Receptor X Retinoide alfa/genética , Neoplasias da Bexiga Urinária/genética , Neoplasias da Bexiga Urinária/terapia
14.
J Alzheimers Dis ; 54(4): 1359-1364, 2016 10 18.
Artigo em Inglês | MEDLINE | ID: mdl-27589529

RESUMO

Dementia is a chronic condition in the elderly and depression is often a concurrent symptom. As populations continue to age, accessible and useful tools to screen for cognitive function and its associated symptoms in elderly populations are needed. The aim of this study was to test the reliability and validity of a new internet-based assessment battery for screening mood and cognitive function in an elderly population. Specifically, the Helping Hand Technology (HHT) assessments for depression (HHT-D) and global cognitive function (HHT-G) were evaluated in a sample of 57 elderly participants (22 male, 35 female) aged 59-85 years. The study sample was categorized into three groups: 1) dementia (n = 8; Mini-Mental State Exam (MMSE) score 10-24), 2) mild cognitive impairment (n = 24; MMSE score 25-28), and 3) control (n = 25; MMSE score 29-30). Test-retest reliability (Pearson correlation coefficient, r) and internal consistency reliability (Cronbach's alpha, α) of the HHT-D and HHT-G were assessed. Validity of the HHT-D and HHT-G was tested via comparison (Pearson r) to commonly used pencil-and-paper based assessments: HHT-D versus the Geriatric Depression Scale (GDS) and HHT-G versus the MMSE. Good test-retest (r = 0.80; p < 0.0001) and acceptable internal consistency reliability (α= 0.73) of the HHT-D were established. Moderate support for the validity of the HHT-D was obtained (r = 0.60 between the HHT-D and GDS; p < 0.0001). Results indicated good test-retest (r = 0.87; p < 0.0001) and acceptable internal consistency reliability (α= 0.70) of the HHT-G. Validity of the HHT-G was supported (r = 0.71 between the HHT-G and MMSE; p < 0.0001). In summary, the HHT-D and HHT-G were found to be reliable and valid computerized assessments to screen for depression and cognitive status, respectively, in an elderly sample.


Assuntos
Afeto/fisiologia , Transtornos Cognitivos/diagnóstico , Cognição/fisiologia , Internet/normas , Testes Neuropsicológicos/normas , Inquéritos e Questionários/normas , Idoso , Idoso de 80 Anos ou mais , Transtornos Cognitivos/psicologia , Demência/diagnóstico , Demência/psicologia , Diagnóstico por Computador/métodos , Diagnóstico por Computador/normas , Feminino , Avaliação Geriátrica/métodos , Humanos , Masculino , Pessoa de Meia-Idade , Reprodutibilidade dos Testes
15.
BMC Public Health ; 14: 168, 2014 Feb 15.
Artigo em Inglês | MEDLINE | ID: mdl-24528783

RESUMO

BACKGROUND: Pedometer-based programs have elicited increased walking behaviors associated with improvements in blood pressure in sedentary/low active postmenopausal women, a population at increased risk of cardiovascular disease. Such programs typically encourage increasing the volume of physical activity with little regard for its intensity. Recent advances in commercially available pedometer technology now permit tracking of both steps/day and time in moderate (or greater) intensity physical activity on a daily basis. It is not known whether the dual message to increase steps/day while also increasing time spent at higher intensity walking will elicit additional improvements in blood pressure relative to a message to only focus on increasing steps/day. The purpose of this paper is to present the rationale, study design, and protocols employed in WalkMore, a 3-arm 3-month blinded and randomized controlled trial (RCT) designed to compare the effects of two community pedometer-based walking interventions (reflecting these separate and combined messages) relative to a control group on blood pressure in sedentary/low active post-menopausal women, a population at increased risk of cardiovascular disease. METHODS/DESIGN: 120 sedentary/low active post-menopausal women (45-74 years of age) will be randomly assigned (computer-generated) to 1 of 3 groups: A) 10,000 steps/day (with no guidance on walking intensity/speed/cadence; BASIC intervention, n = 50); B) 10,000 steps/day and at least 30 minutes in moderate intensity (i.e., a cadence of at least 100 steps/min; ENHANCED intervention, n = 50); or a Control group (n = 20). An important strength of the study is the strict control and quantification of the pedometer-based physical activity interventions. The primary outcome is systolic blood pressure. Secondary outcomes include diastolic blood pressure, anthropometric measurements, fasting blood glucose and insulin, flow mediated dilation, gait speed, and accelerometer-determined physical activity and sedentary behavior. DISCUSSION: This study can make important contributions to our understanding of the relative benefits that walking volume and/or intensity may have on blood pressure in a population at risk of cardiovascular disease. TRIAL REGISTRATION: ClinicalTrials.gov Record NCT01519583, January 18, 2012.


Assuntos
Actigrafia , Doenças Cardiovasculares/prevenção & controle , Comportamento Sedentário , Caminhada/fisiologia , Idoso , Pressão Sanguínea , Feminino , Humanos , Pessoa de Meia-Idade , Monitorização Ambulatorial/instrumentação , Pós-Menopausa , Resultado do Tratamento
16.
Am J Med Sci ; 348(4): 306-14, 2014 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-24165783

RESUMO

The development of glomerulonephritis causes glomerular injury and renal dysfunction and is thought to increase renin release, thus activating the renin-angiotensin system (RAS). The aims of this study were to demonstrate activation of the intrarenal RAS and determine the effects of direct renin inhibition (DRI) on the progression of glomerulonephritis. Rats were treated with anti-Thy1.1 antibody with or without DRI, aliskiren (30 mg/kg/d). In the glomerulonephritic rats, protein, microalbumin excretion levels, urinary angiotensinogen excretion, glomerular expansion score and intrarenal transforming growth factor-ß and plasminogen activator inhibitor-1 mRNA levels were augmented compared with control rats; however, hypertension was not observed in the glomerulonephritic rats, and aliskiren treatment did not modify their blood pressure. The increases in urinary protein (94.7 ± 13.0 mg/d) and microalbumin (7.52 ± 2.6 mg/d) excretion were reduced by aliskiren (43.6 ± 4.5 mg/d of protein and 2.57 ± 0.7 mg/d of microalbumin). Furthermore, the progression of glomerular expansion and elevation of intrarenal transforming growth factor-ß and plasminogen activator inhibitor-1 levels were prevented by aliskiren. Importantly, aliskiren suppressed the augmentation of urinary angiotensinogen levels, the increased angiotensinogen expression in the kidneys and the increases in Ang II levels in renal medulla induced by the anti-Thy1.1 antibody. These results suggest that DRI with aliskiren prevents intrarenal RAS activation leading to mitigation of the development of glomerulonephritis. In addition, the renoprotective effects of DRI on glomerulonephritis occur in a blood pressure-independent manner. Accordingly, treatment with aliskiren may be an effective approach to treat glomerulonephritis and other intrarenal RAS-associated kidney diseases.


Assuntos
Amidas/uso terapêutico , Fumaratos/uso terapêutico , Glomerulonefrite/metabolismo , Glomerulonefrite/prevenção & controle , Renina/antagonistas & inibidores , Renina/metabolismo , Amidas/farmacologia , Animais , Fumaratos/farmacologia , Glomérulos Renais/efeitos dos fármacos , Glomérulos Renais/metabolismo , Masculino , Ratos , Ratos Endogâmicos F344 , Ratos Sprague-Dawley , Sistema Renina-Angiotensina/efeitos dos fármacos , Sistema Renina-Angiotensina/fisiologia , Resultado do Tratamento
17.
J Dev Behav Pediatr ; 33(6): 486-94, 2012 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-22617499

RESUMO

OBJECTIVE: To investigate the hypotheses that in elementary school students: (1) adiposity and academic achievement are negatively correlated and (2) physical activity and academic achievement are positively correlated. METHODS: Participants were 1963 children in fourth to sixth grades. Adiposity was assessed by calculating body mass index (BMI) percentile and percent body fat and academic achievement with statewide standardized tests in 4 content areas. Socioeconomic status and age were control variables. A subset of participants (n = 261) wore an accelerometer for 3 days to provide objective measurement of physical activity. In addition, the association between weight status and academic achievement was examined by comparing children who could be classified as "extremely obese" and the rest of the sample, as well as comparing children who could be classified as normal weight, overweight, or obese. Extreme obesity was defined as ≥1.2 times the 95th percentile. RESULTS: The results indicated that there were no significant associations between adiposity or physical activity and achievement in students. No academic achievement differences were found between children with BMI percentiles within the extreme obesity range and those who did not fall within the extreme obesity classification. In addition, no academic achievement differences were found for children with BMI percentiles within the normal weight, overweight, or obese ranges. CONCLUSIONS: These results do not support the hypotheses that increased adiposity is associated with decreased academic achievement or that greater physical activity is related to improved achievement. However, these results are limited by methodological weaknesses, especially the use of cross-sectional data.


Assuntos
Logro , Atividade Motora , Obesidade/epidemiologia , Acelerometria , Índice de Massa Corporal , Criança , Estudos Transversais , Feminino , Inquéritos Epidemiológicos , Humanos , Louisiana , Masculino , Estatística como Assunto
18.
Dynamics ; 22(1): 19-23, 2011.
Artigo em Inglês | MEDLINE | ID: mdl-21469497

RESUMO

The nursing student's clinical experience serves to form a bridge between the theoretical knowledge of the classroom and its application to patient care. The intensive care unit (ICU) has not traditionally been considered an ideal placement for undergraduate nursing students (Ballard & Trowbridge, 2004). However, in the fall of 2008, with a rise in enrolment, the school was faced with finding more clinical sites to accommodate our placement needs. Twelve of our students in the first semester of their second year of the baccalaureate program were challenged with meeting the objectives of our curriculum in four of the ICUs located in our partnering hospitals at the McGill University Health Centre. The successful outcome of this rotation, from both a student and a faculty perspective, was that this critical care experience facilitated a strong clinical foundation, a comprehensive view of health and illness, and a direct link between theory and practice (Hoffman, 2001). The purpose of this article is to share the personal experiences of the student nurses who completed their first medical-surgical rotation in a critical care setting. We will also discuss how this setting can contribute to the enrichment of future nursing education and practice.


Assuntos
Cuidados Críticos , Bacharelado em Enfermagem/métodos , Unidades de Terapia Intensiva , Competência Clínica , Currículo , Humanos , Modelos Educacionais , Modelos de Enfermagem , Quebeque
19.
J Alzheimers Dis ; 23(4): 665-71, 2011.
Artigo em Inglês | MEDLINE | ID: mdl-21304184

RESUMO

There is an increasing need to develop new neuropsychometric tools sensitive enough to detect subtle declines in cognitive performance during normal aging, as well as to distinguish between normal aging and the earliest stages of dementia. In this study, we report our findings regarding a new confrontational naming test, the Memory for Names test. We conducted evaluations utilizing a cohort of 234 elderly participants who comprised a spectrum of cognitive function ranging from normal for age (Uniform Data Set Overall Appraisal = 2, Clinical Dementia Rating = 0) to demented (Clinical Dementia Rating = 1-2, Mini Mental Status Examination Total Score <25). The Memory for Names test was found to measure the same cognitive construct as the Boston Naming Test. In conclusion, the Memory for Names test is a reliable and valid measure of age-related cognitive function that can discriminate between normal aging and mild cognitive impairment, and between mild cognitive impairment and dementia.


Assuntos
Envelhecimento/psicologia , Demência/diagnóstico , Demência/psicologia , Memória , Nomes , Testes Neuropsicológicos/normas , Idoso , Idoso de 80 Anos ou mais , Envelhecimento/fisiologia , Estudos de Coortes , Demência/fisiopatologia , Feminino , Humanos , Estudos Longitudinais , Masculino , Memória/fisiologia , Pessoa de Meia-Idade , Estimulação Luminosa/métodos , Desempenho Psicomotor/fisiologia , Reprodutibilidade dos Testes
20.
J Diabetes Sci Technol ; 4(3): 723-32, 2010 May 01.
Artigo em Inglês | MEDLINE | ID: mdl-20513340

RESUMO

BACKGROUND: Childhood obesity is a growing problem, particularly in rural, Louisiana school children. Traditionally, school-based obesity prevention programs have used a primary prevention approach. Finding methods to deliver secondary prevention programs to large numbers of students without singling out overweight students has been a challenge. An innovative approach to achieving this goal is through use of an Internet intervention targeted toward a student's weight status. This article describes the Louisiana (LA) Health Internet intervention, including the student Web site, the Internet counselor Web site, and the Internet counseling process. METHOD: The LA Health Internet intervention had separate interfaces for students and Internet counselors. The main features of the student site were behavioral weight loss lessons, lesson activities, chat with an Internet counselor, and email. The Internet counselor site contained these same features, plus a student directory and various means of obtaining student information to guide counseling. Based on their baseline weight status, students received lessons and counseling that promoted either weight loss or weight maintenance. Intervention was delivered during class time, and teachers scheduled Internet counseling sessions with intervention personnel. RESULTS: The LA Health Internet intervention was initially implemented within 14 schools; 773 students were granted access to the site. From Fall 2007 to Spring 2009, 1174 hours of Internet counselor coverage was needed to implement the Internet counseling component of this intervention CONCLUSION: The LA Health Internet intervention is an innovative and feasible method of delivering a secondary prevention program within a school setting to large numbers of students.


Assuntos
Terapia Comportamental/métodos , Internet , Obesidade/prevenção & controle , Prevenção Secundária/métodos , Criança , Aconselhamento , Promoção da Saúde/métodos , Humanos , Louisiana , Serviços de Saúde Escolar
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