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1.
Trials ; 25(1): 283, 2024 Apr 26.
Artigo em Inglês | MEDLINE | ID: mdl-38671470

RESUMO

BACKGROUND: Colorectal cancer (CRC) is the second most lethal cancer in the United States (U.S.) with the highest incidence and mortality rates among African Americans (AAs) compared to other racial groups. Despite these disparities, AAs are the least likely to undergo CRC screening, have precancerous colorectal polyps removed, and have CRC detected at stages early enough for curative excision. In addition, compelling evidence links inflammatory dietary patterns to increased CRC and cardiovascular disease risk. Studies show that AA churches can successfully engage in health promotion activities including those related to cancer control. The current study seeks to leverage church-placed Community Health Workers (CHWs) to increase CRC screening and reduce CRC risk. DESIGN AND METHODS: We aim to (1) increase guideline concordant CRC screening uptake using church-placed CHWs trained in screening with a validated instrument, Brief Intervention using Motivational Interviewing, and Referral to Treatment (SBIRT); and (2) reduce dietary risk factors (inflammatory dietary patterns) linked to CRC. The latter will be addressed by culturally adapting an existing, web-based lifestyle program called Alive!. Using a Hybrid Type 1 Implementation-Effectiveness cluster randomized design, we will randomize 22 AA churches into either the dual intervention arm (CHW-led SBIRT intervention plus Alive!) or a usual care arm comprised of CRC prevention educational pamphlets and a list of CRC screening sites. We will recruit 440 subjects and evaluate the effects of both arms on screening uptake (colonoscopy, fecal DNA) (primary outcome) and dietary inflammation score (secondary outcome) at 6-month follow-up, and Life Simple7 (LS7)-a cardiovascular disease (CVD) risk score-at 6 months and 1 year (secondary outcome). Finally, guided by a racism-conscious adaptation of the Consolidated Framework for Implementation Research (CFIR), we will conduct a mixed-methods process evaluation with key stakeholders to understand multi-level influences on CRC screening and CVD risk behaviors. DISCUSSION: Church-placed CHWs are trusted influential connectors between communities and health systems. Studies have shown that these CHWs can successfully implement health prevention protocols in churches, including those related to cancer control, making them potentially important community mediators of CRC screening uptake and CRC/CVD risk reduction. TRIAL REGISTRATION: NCT05174286; clinicaltrials.gov; August 31st, 2023.


Assuntos
Negro ou Afro-Americano , Doenças Cardiovasculares , Neoplasias Colorretais , Agentes Comunitários de Saúde , Detecção Precoce de Câncer , Ensaios Clínicos Controlados Aleatórios como Assunto , Humanos , Neoplasias Colorretais/prevenção & controle , Neoplasias Colorretais/diagnóstico , Doenças Cardiovasculares/prevenção & controle , Doenças Cardiovasculares/etnologia , Fatores de Risco , Entrevista Motivacional , Comportamento de Redução do Risco , Medição de Risco , Conhecimentos, Atitudes e Prática em Saúde , Fatores de Tempo , Dieta Saudável , Encaminhamento e Consulta , Promoção da Saúde/métodos , Valor Preditivo dos Testes
2.
Res Sq ; 2024 Apr 09.
Artigo em Inglês | MEDLINE | ID: mdl-38659874

RESUMO

Background: Colorectal cancer (CRC) is the second most lethal cancer in the United States (U.S.) with the highest incidence and mortality rates among African Americans (AAs) compared to other racial groups. Despite these disparities, AAs are the least likely to undergo CRC screening, have precancerous colorectal polys removed, and have CRC detected at stages early enough for curative excision. In addition, compelling evidence links inflammatory dietary patterns to increased CRC and cardiovascular disease risk. Studies show that AA churches can successfully engage in health promotion activities including those related to cancer control. The current study seeks to leverage church-placed Community Health Workers (CHWs) to increase CRC screening and reduce CRC risk. Design and Methods: We aim to (1) increase guideline concordant CRC screening uptake using church-placed CHWs trained in screening with a validated instrument, Brief Intervention using Motivational Interviewing, and Referral to Treatment (SBIRT); and (2) reduce dietary risk factors (inflammatory dietary patterns) linked to CRC. The latter will be addressed by culturally adapting an existing, web-based lifestyle program called Alive!. Using a Hybrid Type 1 Implementation-Effectiveness cluster randomized design, we will randomize 22 AA churches into either the dual intervention arm (CHW-led SBIRT intervention plus Alive!) or a usual care arm comprised of CRC prevention educational pamphlets and a list of CRC screening sites. We will recruit 440 subjects and evaluate the effects of both arms on screening uptake (colonoscopy, fecal DNA) (primary outcome) and dietary inflammation score (secondary outcome) at 6-months follow up, and Life Simple7 (LS7) - a cardiovascular disease (CVD) risk score - at 6 months and 1-year (secondary outcome). Finally, guided by a racism-conscious adaptation of the Consolidated Framework for Implementation Research (CFIR), we will conduct a mixed-methods process evaluation with key stakeholders to understand multi-level influences on CRC screening and CVD risk behaviors. Discussion: Church-placed CHWs are trusted influential connectors between communities and health systems. Studies have shown that these CHWs can successfully implement health prevention protocols in churches, including those related to cancer control, making them potentially important community mediators of CRC screening uptake and CRC/CVD risk reduction. Trial registration: NCT05174286.

3.
J Clin Lipidol ; 16(6): 797-812, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-36243606

RESUMO

The Abetalipoproteinemia and Related Disorders Foundation was established in 2019 to provide guidance and support for the life-long management of inherited hypocholesterolemia disorders. Our mission is "to improve the lives of individuals and families affected by abetalipoproteinemia and related disorders". This review explains the molecular mechanisms behind the monogenic hypobetalipoproteinemia disorders and details their specific pathophysiology, clinical presentation and management throughout the lifespan. In this review, we focus on abetalipoproteinemia, homozygous hypobetalipoproteinemia and chylomicron retention disease; rare genetic conditions that manifest early in life and cause severe complications without appropriate treatment. Absent to low plasma lipid levels, in particular cholesterol and triglyceride, along with malabsorption of fat and fat-soluble vitamins are characteristic features of these diseases. We summarize the genetic basis of these disorders, provide guidance in their diagnosis and suggest treatment regimens including high dose fat-soluble vitamins as therapeutics. A section on preconception counseling and other special considerations pertaining to pregnancy is included. This information may be useful for patients, caregivers, physicians and insurance agencies involved in the management and support of affected individuals.


Assuntos
Abetalipoproteinemia , Hipobetalipoproteinemias , Transtornos do Metabolismo dos Lipídeos , Humanos , Abetalipoproteinemia/diagnóstico , Abetalipoproteinemia/genética , Abetalipoproteinemia/terapia , Hipobetalipoproteinemias/diagnóstico , Hipobetalipoproteinemias/genética , Hipobetalipoproteinemias/terapia , Homozigoto , Vitaminas
4.
J Am Coll Cardiol ; 79(16): 1623-1635, 2022 04 26.
Artigo em Inglês | MEDLINE | ID: mdl-35450580

RESUMO

Despite the high prevalence of nutrition disorders in patients with heart failure (HF), major HF guidelines lack specific nutrition recommendations. Because of the lack of standardized definitions and assessment tools to quantify nutritional status, nutrition disorders are often missed in patients with HF. Additionally, a wide range of dietary interventions and overall dietary patterns have been studied in this population. The resulting evidence of benefit is, however, conflicting, making it challenging to determine which strategies are the most beneficial. In this document, we review the available nutritional status assessment tools for patients with HF. In addition, we appraise the current evidence for dietary interventions in HF, including sodium restriction, obesity, malnutrition, dietary patterns, and specific macronutrient and micronutrient supplementation. Furthermore, we discuss the feasibility and challenges associated with the implementation of multimodal nutrition interventions and delineate potential solutions to facilitate addressing nutrition in patients with HF.


Assuntos
Insuficiência Cardíaca , Desnutrição , Insuficiência Cardíaca/complicações , Insuficiência Cardíaca/terapia , Humanos , Desnutrição/prevenção & controle , Avaliação Nutricional , Estado Nutricional , Obesidade/complicações
5.
Transplant Proc ; 53(6): 1858-1864, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34246476

RESUMO

BACKGROUND: The kidney is essential for glucose and insulin metabolism. Living kidney donors (LKDs) experience a reduction in glomerular filtration rate of 25 to 30 mL/min after donor nephrectomy. Little is known about the effect of glomerular filtration rate decline on insulin sensitivity in LKDs. METHODS: We conducted a prospective pilot study on 9 LKDs (N = 9) who underwent dynamic metabolic testing (mixed meal tolerance test) to measure proxies of insulin sensitivity (homeostatic model assessment of insulin resistance, the area under curve [AUC] for insulin/glucose ratio, and Matsuda insulin sensitivity index) before and 3 months after donor nephrectomy. The primary outcome was the change in insulin sensitivity indices (delta [post-nephrectomy - pre-nephrectomy]). RESULTS: Four of the donors had a body mass index (BMI) between 32.0 and 36.7 predonation. Post-donor nephrectomy, compared with prenephrectomy values, median insulin AUC increased from 60.7 to 101.7 hr*mU/mL (delta median 33.3, P = .04) without significant change in median glucose AUC levels from 228.9 to 209.3 hr*mg/dL (delta median 3.2, P = .77). There was an increase in the median homeostatic model assessment of insulin resistance from 2 to 2.9 (delta median 0.8, P = .03) and the AUC insulin/glucose ratio from 30.9 to 62.1 pmol/mmol (delta median 17.5, P = .001), whereas the median Matsuda insulin sensitivity index decreased from 5.9 to 2.9 (delta median -2, P = .05). The changes were more pronounced in obese (BMI >32) donors. CONCLUSION: LKDs appear to have a trend toward a decline in insulin sensitivity post-donor nephrectomy in the short term, especially in obese donors (BMI >32). Further investigation with a larger sample size and longer follow-up is needed.


Assuntos
Resistência à Insulina , Transplante de Rim , Doadores Vivos , Adulto , Idoso , Feminino , Humanos , Rim , Transplante de Rim/efeitos adversos , Masculino , Pessoa de Meia-Idade , Nefrectomia/efeitos adversos , Projetos Piloto , Estudos Prospectivos , Adulto Jovem
6.
J Clin Lipidol ; 15(3): 402-422, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-33846108

RESUMO

It is now well recognized that South Asians living in the US (SAUS) have a higher prevalence of atherosclerotic cardiovascular disease (ASCVD) that begins earlier and is more aggressive than age-matched people of other ethnicities. SA ancestry is now recognized as a risk enhancer in the US cholesterol treatment guidelines. The pathophysiology of this is not fully understood but may relate to insulin resistance, genetic and dietary factors, lack of physical exercise, visceral adiposity and other, yet undiscovered biologic mechanisms. In this expert consensus document, we review the epidemiology of ASCVD in this population, enumerate the challenges faced in tackling this problem, provide strategies for early screening and education of the community and their healthcare providers, and offer practical prevention strategies and culturally-tailored dietary advice to lower the rates of ASCVD in this cohort.


Assuntos
Povo Asiático , Aterosclerose/prevenção & controle , Anticolesterolemiantes/uso terapêutico , Aterosclerose/complicações , Aterosclerose/etnologia , Aterosclerose/fisiopatologia , Diabetes Mellitus Tipo 2/complicações , Dieta , Feminino , Humanos , Resistência à Insulina , Gordura Intra-Abdominal , Estilo de Vida , Masculino , Educação de Pacientes como Assunto/métodos , Estado Pré-Diabético/complicações , Fatores de Risco , Estados Unidos
8.
BMC Nutr ; 6: 38, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32864153

RESUMO

BACKGROUND: In 1996 and in 2006, Palestine initiated salt iodization and multiple micronutrient fortification of wheat flour, respectively as a strategy to prevent deficiencies of these nutrients. In 2009, we assessed the impact of these interventions on the health and nutritional status of schoolchildren residing in the West Bank. METHODS: We surveyed a sample of 22 schools run by the UN Relief and Works Agency for Palestine Refugees in the Near East (UNRWA) and the Palestinian Government. We randomly selected students from the first (mean age 6.7 years [SD 0.5]), sixth (11.8 years [0.6]), and ninth grades (14.8 years [0.6]). Data were obtained from 1484 (99%) of 1500 students planned for enrollment. RESULTS: Our results suggest that iodine intake appears adequate and there was essentially no iodine deficiency. As to the status of other micronutrients, the main nutritional micronutrient risks for schoolchildren in the West Bank continue to be low serum levels of iron, zinc, and vitamin B-12; folate levels were seemingly high. The overall prevalence of anemia was 9.6%, but there were pockets of anemia in certain districts. Almost 42% of the anemia in our sample was explained by iron deficiency. There were significant differences in iron deficiency between girls and boys, 29.5% vs. 15.7%, respectively (p = 0.0001). There were no cases of lead toxicity in the studied sample. CONCLUSIONS: Wheat flour and salt fortification has had a major influence on improving the micronutrient status of Palestinian children, for some but not all micronutrients. The recommended key blood and biochemical parameters to be incorporated in the surveillance system are iron, zinc, and vitamin B12.

9.
JACC Heart Fail ; 8(9): 756-764, 2020 09.
Artigo em Inglês | MEDLINE | ID: mdl-32653445

RESUMO

OBJECTIVES: The purpose of this study was to evaluate the relationship between calorie intake and post-discharge outcomes in hospitalized patients with heart failure (HF). BACKGROUND: Malnutrition increases adverse outcomes in HF, and dietary sodium restriction may inadvertently worsen nutritional intake. METHODS: In a dietary intervention trial, baseline nutritional intake in HF inpatients was estimated using the Block Food Frequency Questionnaire (FFQ), and the Nutritional Risk Index (NRI) was calculated. Insufficient calorie intake was defined as <90% of metabolic needs, and a 15-point micronutrient deficiency score was created. Adjusted linear, logistic, and negative binomial regression were used to evaluate associations between insufficient calorie intake and quality of life (using the Kansas City Cardiomyopathy Questionnaire Clinical Summary [KCCQ-CS]), readmission risk, and days rehospitalized over 12 weeks. RESULTS: Among 57 participants (70 ± 8 years of age; 31% female; mean body mass index 32 ± 8 kg/m2); median sodium and calorie intake amounts were 2,987 mg/day (interquartile range [IQR]: 2,160 to 3,540 mg/day) and 1,602 kcal/day (IQR: 1,201 to 2,142 kcal/day), respectively; 11% of these patients were screened as malnourished by the NRI. All patients consuming <2,000 mg/day sodium had insufficient calorie intake; this group also more frequently had dietary micronutrient and protein deficiencies. At 12 weeks, patients with insufficient calorie intake had less improvement in the KCCQ-CS score (ß = -14.6; 95% confidence interval [CI]: -27.3 to -1.9), higher odds of readmission (odds ratio: 14.5; 95% CI: 2.2 to 94.4), and more days rehospitalized (incident rate ratio: 31.3; 95% CI: 4.3 to 229.3). CONCLUSIONS: Despite a high prevalence for obesity and rare overt malnutrition, insufficient calorie intake was associated with poorer post-discharge quality of life and increased burden of readmission in patients with HF. Inpatient dietary assessment could improve readmission risk stratification and identify patients for nutritional intervention. (Geriatric Out of Hospital Randomized Meal Trial in Heart Failure [GOURMET-HF] NCT02148679).


Assuntos
Ingestão de Energia , Insuficiência Cardíaca , Readmissão do Paciente , Qualidade de Vida , Adulto , Assistência ao Convalescente , Idoso , Ingestão de Alimentos , Feminino , Insuficiência Cardíaca/terapia , Humanos , Masculino , Alta do Paciente
10.
J Nutr ; 150(8): 2089-2100, 2020 08 01.
Artigo em Inglês | MEDLINE | ID: mdl-32492148

RESUMO

BACKGROUND: Factor VIIc, fibrinogen, and plasminogen activator inhibitor 1 (PAI-1) are cardiovascular disease (CVD) risk factors and are modulated, in part, by fat type and amount. OBJECTIVE: We evaluated fat type and amount on the primary outcomes: factor VIIc, fibrinogen, and PAI-1. METHODS: In the Dietary Effects on Lipoproteins and Thrombogenic Activity (DELTA) Trial, 2 controlled crossover feeding studies evaluated substituting carbohydrate or MUFAs for SFAs. Study 1: healthy participants (n = 103) were provided with (8 wk) an average American diet [AAD; designed to provide 37% of energy (%E) as fat, 16% SFA], a Step 1 diet (30%E fat, 9% SFA), and a diet low in SFA (Low-Sat; 26%E fat, 5% SFA). Study 2: participants (n = 85) at risk for CVD and metabolic syndrome (MetSyn) were provided with (7 wk) an AAD, a step 1 diet, and a high-MUFA diet (designed to provide 37%E fat, 8% SFA, 22% MUFA). RESULTS: Study 1: compared with AAD, the Step 1 and Low-Sat diets decreased mean factor VIIc by 1.8% and 2.6% (overall P = 0.0001), increased mean fibrinogen by 1.2% and 2.8% (P = 0.0141), and increased mean square root PAI-1 by 0.0% and 6.0% (P = 0.0037), respectively. Study 2: compared with AAD, the Step 1 and high-MUFA diets decreased mean factor VIIc by 4.1% and 3.2% (overall P < 0.0001), increased mean fibrinogen by 3.9% and 1.5% (P = 0.0083), and increased mean square-root PAI-1 by 2.0% and 5.8% (P = 0.1319), respectively. CONCLUSIONS: Replacing SFA with carbohydrate decreased factor VIIc and increased fibrinogen in healthy and metabolically unhealthy individuals and also increased PAI-1 in healthy subjects. Replacing SFA with MUFA decreased factor VIIc and increased fibrinogen but less than carbohydrate. Our results indicate an uncertain effect of replacing SFA with carbohydrate or MUFA on cardiometabolic risk because of small changes in hemostatic factors and directionally different responses to decreasing SFA. This trial was registered at https://clinicaltrials.gov/ct2/show/NCT00000538?term=NCT00000538&rank=1 as NCT00000538.


Assuntos
Doenças Cardiovasculares/metabolismo , Gorduras na Dieta/administração & dosagem , Gorduras na Dieta/farmacologia , Fator VII/metabolismo , Fibrinogênio/metabolismo , Inibidor 1 de Ativador de Plasminogênio/metabolismo , Adulto , Idoso , Dieta , Gorduras na Dieta/classificação , Fator VII/genética , Feminino , Fibrinogênio/genética , Regulação da Expressão Gênica/efeitos dos fármacos , Hemostasia , Humanos , Masculino , Pessoa de Meia-Idade , Inibidor 1 de Ativador de Plasminogênio/genética , Fatores de Risco , Adulto Jovem
11.
J Clin Lipidol ; 14(3): 274-281, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32527468

RESUMO

Epidemiology has long suggested that diet plays a major role in determining risk for atherosclerotic cardiovascular disease. A small number of important randomized controlled trials support this contention. We have to recognize that dietary patterns also constitute a large part of ethnic identity. In our increasingly connected world of international mobility and influence, lipidologists face new challenges in counseling patients with diverse nutritional preferences. In this JCL roundtable, we discuss Hispanic, South Asian, and Mediterranean dietary patterns and their association with atherosclerotic risk. Culturally acceptable ways are suggested to mitigate the atherogenic aspects of Hispanic and South Asian diets and to reinforce their heart healthy aspects. The Mediterranean diet provides a model for ameliorating risk, but one should understand how it is practiced in its native countries compared with its adaptations abroad.


Assuntos
Dieta , Povo Asiático , Aterosclerose/epidemiologia , Aterosclerose/prevenção & controle , Dieta Mediterrânea , Etnicidade , Hispânico ou Latino , Humanos , Fatores de Risco
12.
J Card Fail ; 26(3): 223-226, 2020 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-31580890

RESUMO

BACKGROUND: Dietary sodium excess and malnutrition have been associated with poor outcomes in heart failure (HF). Few previous studies have examined the barriers to following a low-sodium, nutritionally robust diet in hospitalized patients with HF. METHODS AND RESULTS: As part of a dietary intervention pilot study, 76 inpatients with HF (age 71 ±â€¯8 years, 30% female, 30% black, 36% Hispanic/Latino) completed 2 questionnaires, the Dietary Sodium Restriction Questionnaire (DSRQ) and the Brief Dietary Psychosocial Scale (BDPS), to assess challenges in following a low-sodium, nutritionally complete diet. We assessed the factor structure of the DSRQ and BDPS with confirmatory and exploratory factor analysis (CFA and EFA). CFA did not support the established 3-factor solution for the DSRQ; instead, EFA indicated that a 2-factor solution (subjective norms/attitudes and perceived behavioral control) provided the best fit for the data. EFA supported 4 separate factors for the BDPS, as in its original derivation. Cronbach's alphas supported internal consistency reliability for both scales (DSRQ: 0.85-0.94; BDPS: 0.72-0.95). CONCLUSIONS: In a mixed-ethnicity group of hospitalized older patients with HF, the DSRQ and BDPS have reasonable psychometric properties. These questionnaires may help identify barriers to healthy dietary practices and facilitate nutritional interventions in this high-risk population.


Assuntos
Dieta Saudável , Insuficiência Cardíaca , Idoso , Criança , Análise Fatorial , Feminino , Insuficiência Cardíaca/diagnóstico , Insuficiência Cardíaca/epidemiologia , Insuficiência Cardíaca/terapia , Humanos , Masculino , Projetos Piloto , Psicometria , Reprodutibilidade dos Testes , Inquéritos e Questionários
14.
Arterioscler Thromb Vasc Biol ; 39(1): 63-72, 2019 01.
Artigo em Inglês | MEDLINE | ID: mdl-30580564

RESUMO

Objective- Apo (apolipoprotein) CIII inhibits lipoprotein lipase (LpL)-mediated lipolysis of VLDL (very-low-density lipoprotein) triglyceride (TG) and decreases hepatic uptake of VLDL remnants. The discovery that 5% of Lancaster Old Order Amish are heterozygous for the APOC3 R19X null mutation provided the opportunity to determine the effects of a naturally occurring reduction in apo CIII levels on the metabolism of atherogenic containing lipoproteins. Approach and Results- We conducted stable isotope studies of VLDL-TG and apoB100 in 5 individuals heterozygous for the null mutation APOC3 R19X (CT) and their unaffected (CC) siblings. Fractional clearance rates and production rates of VLDL-TG and apoB100 in VLDL, IDL (intermediate-density lipoprotein), LDL, apo CIII, and apo CII were determined. Affected (CT) individuals had 49% reduction in plasma apo CIII levels compared with CCs ( P<0.01) and reduced plasma levels of TG (35%, P<0.02), VLDL-TG (45%, P<0.02), and VLDL-apoB100 (36%, P<0.05). These changes were because of higher fractional clearance rates of VLDL-TG and VLDL-apoB100 with no differences in production rates. CTs had higher rates of the conversion of VLDL remnants to LDL compared with CCs. In contrast, rates of direct removal of VLDL remnants did not differ between the groups. As a result, the flux of apoB100 from VLDL to LDL was not reduced, and the plasma levels of LDL-cholesterol and LDL-apoB100 were not lower in the CT group. Apo CIII production rate was lower in CTs compared with CCs, whereas apo CII production rate was not different between the 2 groups. The fractional clearance rates of both apo CIII and apo CII were higher in CTs than CCs. Conclusions- These studies demonstrate that 50% reductions in plasma apo CIII, in otherwise healthy subjects, results in a significantly higher rate of conversion of VLDL to LDL, with little effect on direct hepatic uptake of VLDL. When put in the context of studies demonstrating significant protection from cardiovascular events in individuals with loss of function variants in the APOC3 gene, our results provide strong evidence that therapies which increase the efficiency of conversion of VLDL to LDL, thereby reducing remnant concentrations, should reduce the risk of cardiovascular disease.


Assuntos
Apolipoproteína C-III/fisiologia , Lipídeos/sangue , Lipoproteínas/metabolismo , Adulto , Idoso , Apolipoproteína B-100/metabolismo , Apolipoproteína C-III/deficiência , Apolipoproteína C-III/genética , Feminino , Humanos , Lipólise , Lipoproteínas IDL/metabolismo , Lipoproteínas VLDL/metabolismo , Masculino , Pessoa de Meia-Idade , Mutação
15.
J Am Heart Assoc ; 7(17): e010201, 2018 09 04.
Artigo em Inglês | MEDLINE | ID: mdl-30371169

RESUMO

Background Consensus panels regularly recommend aerobic exercise for its health-promoting properties, due in part to presumed anti-inflammatory effects, but many studies show no such effect, possibly related to study differences in participants, interventions, inflammatory markers, and statistical approaches. This variability makes an unequivocal determination of the anti-inflammatory effects of aerobic training elusive. Methods and Results We conducted a randomized controlled trial of 12 weeks of aerobic exercise training or a wait list control condition followed by 4 weeks of sedentary deconditioning on lipopolysaccharide (0, 0.1, and 1.0 ng/mL)-inducible tumor necrosis factor-α (TNF-α) and interleukin-6 (IL-6), and on toll-like receptor 4 in 119 healthy, sedentary young adults. Aerobic capacity by cardiopulmonary exercise testing was measured at study entry (T1) and after training (T2) and deconditioning (T3). Despite a 15% increase in maximal oxygen consumption, there were no changes in inflammatory markers. Additional analyses revealed a differential longitudinal aerobic exercise training effect by lipopolysaccharide level in inducible TNF -α ( P=0.08) and IL-6 ( P=0.011), showing T1 to T2 increases rather than decreases in inducible (lipopolysaccharide 0.1, 1.0 versus 0.0 ng/mL) TNF- α (51% increase, P=0.041) and IL-6 (42% increase, P=0.11), and significant T2 to T3 decreases in inducible TNF- α (54% decrease, P=0.007) and IL-6 (55% decrease, P<0.001). There were no significant changes in either group at the 0.0 ng/mL lipopolysaccharide level for TNF- α or IL-6. Conclusions The failure to support the primary hypotheses and the unexpected post hoc findings of an exercise-training-induced proinflammatory response raise questions about whether and under what conditions exercise training has anti-inflammatory effects. Clinical Trial Registration URL : http://www.clinicaltrials.gov . Unique identifier: NCT 01335737.


Assuntos
Exercício Físico/fisiologia , Interleucina-6/imunologia , Receptor 4 Toll-Like/imunologia , Fator de Necrose Tumoral alfa/imunologia , Adulto , Teste de Esforço , Feminino , Voluntários Saudáveis , Humanos , Inflamação , Lipopolissacarídeos/farmacologia , Masculino , Consumo de Oxigênio , Comportamento Sedentário , Fator de Necrose Tumoral alfa/efeitos dos fármacos , Adulto Jovem
16.
Circ Heart Fail ; 11(8): e004886, 2018 08.
Artigo em Inglês | MEDLINE | ID: mdl-30354562

RESUMO

Background In patients with heart failure (HF), malnutrition and dietary sodium excess are common and may worsen outcomes. No prior studies have provided low-sodium, nutritionally complete meals following HF hospitalization. Methods and Results The GOURMET-HF study (Geriatric Out-of-Hospital Randomized Meal Trial in Heart Failure) randomized patients discharged from HF hospitalization to 4 weeks of home-delivered sodium-restricted Dietary Approaches to Stop Hypertension meals (DASH/SRD; 1500 mg sodium/d) versus usual care. The primary outcome was the between-group change in the Kansas City Cardiomyopathy Questionnaire summary score from discharge to 4 weeks postdischarge. Additional outcomes included changes in the Kansas City Cardiomyopathy Questionnaire clinical summary score and cardiac biomarkers. All patients were followed 12 weeks for death/all-cause readmission and potential diet-related adverse events (symptomatic hypotension, hyperkalemia, acute kidney injury). Sixty-six patients were randomized 1:1 at discharge to DASH/SRD versus usual care (age, 71±8 years; 30% female; ejection fraction, 39±18%). The Kansas City Cardiomyopathy Questionnaire summary score increased similarly between groups (DASH/SRD 46±23-59±20 versus usual care 43±19-53±24; P=0.38), but the Kansas City Cardiomyopathy Questionnaire clinical summary score increase tended to be greater in DASH/SRD participants (47±22-65±19 versus 45±20-55±26; P=0.053). Potentially diet-related adverse events were uncommon; 30-day HF readmissions (11% versus 27%; P=0.06) and days rehospitalized within that timeframe (17 versus 55; P=0.055) trended lower in DASH/SRD participants. Conclusions Home-delivered DASH/SRD after HF hospitalization appeared safe in selected patients and had directionally favorable effects on HF clinical status and 30-day readmissions. Larger studies are warranted to clarify the effects of postdischarge nutritional support in patients with HF. Clinical Trial Registration URL: https://www.clinicaltrials.gov . Unique identifier: NCT02148679.


Assuntos
Reabilitação Cardíaca/métodos , Dieta Hipossódica , Abordagens Dietéticas para Conter a Hipertensão , Serviços de Alimentação , Insuficiência Cardíaca/dietoterapia , Desnutrição/prevenção & controle , Refeições , Alta do Paciente , Fatores Etários , Idoso , Dieta Hipossódica/efeitos adversos , Abordagens Dietéticas para Conter a Hipertensão/efeitos adversos , Feminino , Avaliação Geriátrica/métodos , Insuficiência Cardíaca/diagnóstico , Insuficiência Cardíaca/fisiopatologia , Humanos , Masculino , Desnutrição/diagnóstico , Desnutrição/fisiopatologia , Michigan , Cidade de Nova Iorque , Estado Nutricional , Valor Nutritivo , Readmissão do Paciente , Qualidade de Vida , Inquéritos e Questionários , Fatores de Tempo , Resultado do Tratamento
17.
J Lipid Res ; 59(12): 2397-2402, 2018 12.
Artigo em Inglês | MEDLINE | ID: mdl-30293969

RESUMO

Elevated lipoprotein (a) [Lp(a)] levels increase the risk for CVD. Novel treatments that decrease LDL cholesterol (LDL-C) have also shown promise for reducing Lp(a) levels. Mipomersen, an antisense oligonucleotide that inhibits apoB synthesis, is approved for the treatment of homozygous familial hypercholesterolemia. It decreases plasma levels of LDL-C by 25% to 39% and lowers levels of Lp(a) by 21% to 39%. We examined the mechanisms for Lp(a) lowering during mipomersen treatment. We enrolled 14 healthy volunteers who received weekly placebo injections for 3 weeks followed by weekly injections of mipomersen for 7 weeks. Stable isotope kinetic studies were performed using deuterated leucine at the end of the placebo and mipomersen treatment periods. The fractional catabolic rate (FCR) of Lp(a) was determined from the enrichment of a leucine-containing peptide specific to apo(a) by LC/MS. The production rate (PR) of Lp(a) was calculated from the product of Lp(a) FCR and Lp(a) concentration (converted to pool size). In a diverse population, mipomersen reduced plasma Lp(a) levels by 21%. In the overall study group, mipomersen treatment resulted in a 27% increase in the FCR of Lp(a) with no significant change in PR. However, there was heterogeneity in the response to mipomersen therapy, and changes in both FCRs and PRs affected the degree of change in Lp(a) concentrations. Mipomersen treatment decreases Lp(a) plasma levels mainly by increasing the FCR of Lp(a), although changes in Lp(a) PR were significant predictors of reductions in Lp(a) levels in some subjects.


Assuntos
Lipoproteína(a)/sangue , Oligonucleotídeos/farmacologia , Adulto , Apolipoproteína B-100/sangue , LDL-Colesterol/sangue , Cromatografia Líquida , Feminino , Humanos , Metabolismo dos Lipídeos/efeitos dos fármacos , Masculino , Espectrometria de Massas , Pessoa de Meia-Idade , Oligodesoxirribonucleotídeos Antissenso/farmacologia
18.
Nutrients ; 10(8)2018 Aug 18.
Artigo em Inglês | MEDLINE | ID: mdl-30126177

RESUMO

This study was carried out among Palestinian refugee women in the West Bank to provide data on the prevalence of metabolic syndrome (MetS) and its correlates. Data were obtained from a cross-sectional study of 1694 randomly selected refugee women from the United Nations Relief and Works Agency for Palestine Refugees in the Near East (UNRWA) health centers throughout the West Bank during June and July 2010. In this cohort, 30% of the refugee women were overweight, 39% were obese, and 7% were extremely obese. Based on World Health Organization (WHO) criteria, the age-adjusted prevalence of MetS was 19.8%. The results of the binary logistic regression analysis indicated that older age and younger marital age were significantly associated with an increased likelihood of MetS in the women. The high prevalence of obesity and MetS mandates the implementation of national policies for its prevention, notably by initiating large-scale community intervention programs for 5.2 million refugees in Palestine, Jordan, Lebanon, and Syria, to tackle obesity and increase the age at marriage.


Assuntos
Árabes , Síndrome Metabólica/epidemiologia , Obesidade/epidemiologia , Refugiados , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Glicemia/metabolismo , Índice de Massa Corporal , Colesterol/sangue , Estudos Transversais , Feminino , Humanos , Jordânia/epidemiologia , Líbano/epidemiologia , Pessoa de Meia-Idade , Prevalência , Fatores Socioeconômicos , Circunferência da Cintura , Adulto Jovem
19.
Neurology ; 91(5): e421-e426, 2018 07 31.
Artigo em Inglês | MEDLINE | ID: mdl-29959259

RESUMO

OBJECTIVE: To understand nutritional and inflammatory factors contributing to serum glutamine levels and their relationship to hospital-acquired infections (HAIs) after aneurysmal subarachnoid hemorrhage (SAH). METHODS: A prospective observational study of patients with SAH who had measurements of daily caloric intake and C-reactive protein, transthyretin, tumor necrosis factor α receptor 1a (TNFαR1a), glutamine, and nitrogen balance performed within 4 preset time periods during the 14 days after SAH. Factors associated with glutamine levels and HAIs were analyzed with multivariable regression. HAIs were tracked daily for time-to-event analyses. Outcome 3 months after SAH was assessed by the Telephone Interview for Cognitive Status and modified Rankin Scale. RESULTS: There were 77 patients with an average age of 55 ± 15 years. HAIs developed in 18 (23%) on mean SAH day 8 ± 3. In a multivariable linear regression model, negative nitrogen balance (p = 0.02) and elevated TNFαR1a (p = 0.04) were independently associated with higher glutamine levels during the study period. The 14-day mean glutamine levels were lower in patients who developed HAI (166 ± 110 vs 236 ± 81 µg/mL, p = 0.004). Poor admission Hunt and Hess grade (p = 0.04) and lower glutamine levels (p = 0.02) predicted time to first HAI. Low 14-day mean levels of glutamine were associated with a poor recovery on the Telephone Interview for Cognitive Status score (p = 0.03) and modified Rankin Scale score (p = 0.04) at 3 months after injury. CONCLUSIONS: Declining glutamine levels in the first 14 days after SAH are influenced by inflammation and associated with an increased risk of HAI.


Assuntos
Infecção Hospitalar/sangue , Glutamina/sangue , Aneurisma Intracraniano/sangue , Hemorragia Subaracnóidea/sangue , Adulto , Idoso , Biomarcadores/sangue , Infecção Hospitalar/diagnóstico , Infecção Hospitalar/epidemiologia , Feminino , Humanos , Aneurisma Intracraniano/diagnóstico , Aneurisma Intracraniano/epidemiologia , Masculino , Pessoa de Meia-Idade , Estudos Prospectivos , Estudos Retrospectivos , Fatores de Risco , Hemorragia Subaracnóidea/diagnóstico , Hemorragia Subaracnóidea/epidemiologia
20.
J Clin Lipidol ; 12(4): 908-919, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-29804909

RESUMO

BACKGROUND: Familial chylomicronemia syndrome (FCS) is a rare autosomal recessive disorder with loss of function mutations of lipoprotein lipase resulting in hypertriglyceridemia and accumulation of chylomicrons in plasma, often leading to acute pancreatitis. The mainstay of treatment is a specialized very-low-fat diet. Even adhering to the diet, some patients may experience high triglycerides and pancreatitis. There currently are no comprehensive dietary guidelines. OBJECTIVE: To report best practices and develop comprehensive dietary guidelines for nutrition therapy in patients with FCS. METHODS: Registered dietitian nutritionists (RDNs) convened to develop this report based on experience treating patients with FCS and a review of current literature on the topic. One author provided a patient perspective of living with FCS. RESULTS: This report provides guidelines and rationales for nutrition therapy associated with FCS across the life span. The top global guidelines are to (1) limit fat to <15 to 20 g per day (<10%-15% of total daily energy intake); (2) meet recommendations for essential fatty acids: α-linolenic acid and linoleic acid; (3) choose complex carbohydrate foods while limiting simple and refined carbohydrate foods; (4) supplement with fat-soluble vitamins, minerals, and medium-chain triglyceride oil, as needed; (5) adjust calories for weight management. Recommended foods include vegetables, whole grains, legumes, lean protein foods, fruits in limited amounts, and fat-free milk products without added sugars. Foods to avoid include alcohol and products high in sugar. CONCLUSIONS: These patient-centered nutrition guidelines provide guidance to help patients adhere to the recommended diet and optimize nutritional needs.


Assuntos
Dieta com Restrição de Gorduras , Hiperlipoproteinemia Tipo I/patologia , Ingestão de Energia , Guias como Assunto , Humanos , Hiperlipoproteinemia Tipo I/complicações , Hiperlipoproteinemia Tipo I/dietoterapia , Estilo de Vida , Longevidade , Terapia Nutricional , Pancreatite/diagnóstico , Pancreatite/etiologia
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