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1.
Addict Biol ; 28(2): e13263, 2023 02.
Artículo en Inglés | MEDLINE | ID: mdl-36692874

RESUMEN

Pavlovian cues can influence ongoing instrumental behaviour via Pavlovian-to-instrumental transfer (PIT) processes. While appetitive Pavlovian cues tend to promote instrumental approach, they are detrimental when avoidance behaviour is required, and vice versa for aversive cues. We recently reported that susceptibility to interference between Pavlovian and instrumental control assessed via a PIT task was associated with risky alcohol use at age 18. We now investigated whether such susceptibility also predicts drinking trajectories until age 24, based on AUDIT (Alcohol Use Disorders Identification Test) consumption and binge drinking (gramme alcohol/drinking occasion) scores. The interference PIT effect, assessed at ages 18 and 21 during fMRI, was characterized by increased error rates (ER) and enhanced neural responses in the ventral striatum (VS), the lateral and dorsomedial prefrontal cortices (dmPFC) during conflict, that is, when an instrumental approach was required in the presence of an aversive Pavlovian cue or vice versa. We found that a stronger VS response during conflict at age 18 was associated with a higher starting point of both drinking trajectories but predicted a decrease in binge drinking. At age 21, high ER and enhanced neural responses in the dmPFC were associated with increasing AUDIT-C scores over the next 3 years until age 24. Overall, susceptibility to interference between Pavlovian and instrumental control might be viewed as a predisposing mechanism towards hazardous alcohol use during young adulthood, and the identified high-risk group may profit from targeted interventions.


Asunto(s)
Alcoholismo , Consumo Excesivo de Bebidas Alcohólicas , Humanos , Adulto Joven , Adulto , Adolescente , Condicionamiento Operante/fisiología , Condicionamiento Clásico/fisiología , Reacción de Prevención , Señales (Psicología)
2.
Behav Res Methods ; 55(8): 4329-4342, 2023 12.
Artículo en Inglés | MEDLINE | ID: mdl-36508108

RESUMEN

Self-regulation, the ability to guide behavior according to one's goals, plays an integral role in understanding loss of control over unwanted behaviors, for example in alcohol use disorder (AUD). Yet, experimental tasks that measure processes underlying self-regulation are not easy to deploy in contexts where such behaviors usually occur, namely outside the laboratory, and in clinical populations such as people with AUD. Moreover, lab-based tasks have been criticized for poor test-retest reliability and lack of construct validity. Smartphones can be used to deploy tasks in the field, but often require shorter versions of tasks, which may further decrease reliability. Here, we show that combining smartphone-based tasks with joint hierarchical modeling of longitudinal data can overcome at least some of these shortcomings. We test four short smartphone-based tasks outside the laboratory in a large sample (N = 488) of participants with AUD. Although task measures indeed have low reliability when data are analyzed traditionally by modeling each session separately, joint modeling of longitudinal data increases reliability to good and oftentimes excellent levels. We next test the measures' construct validity and show that extracted latent factors are indeed in line with theoretical accounts of cognitive control and decision-making. Finally, we demonstrate that a resulting cognitive control factor relates to a real-life measure of drinking behavior and yields stronger correlations than single measures based on traditional analyses. Our findings demonstrate how short, smartphone-based task measures, when analyzed with joint hierarchical modeling and latent factor analysis, can overcome frequently reported shortcomings of experimental tasks.


Asunto(s)
Alcoholismo , Autocontrol , Humanos , Teléfono Inteligente , Reproducibilidad de los Resultados , Tiempo de Reacción
3.
Neuropsychobiology ; 81(5): 370-386, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-36380640

RESUMEN

INTRODUCTION: The emergence of Pavlovian-to-instrumental transfer (PIT) research in the human neurobehavioral domain has been met with increased interest over the past two decades. A variety of PIT tasks were developed during this time; while successful in demonstrating transfer phenomena, existing tasks have limitations that should be addressed. Herein, we introduce two PIT paradigms designed to assess outcome-specific and general PIT within the context of addiction. MATERIALS AND METHODS: The single-lever PIT task, based on an established paradigm, replaced button presses with joystick motion to better assess avoidance behavior. The full transfer task uses alcohol and nonalcohol rewards associated with Pavlovian cues and instrumental responses, along with other gustatory and monetary rewards. We constructed mixed-effects models with the addition of other statistical analyses as needed to interpret various behavioral measures. RESULTS: Single-lever PIT: both versions were successful in eliciting a PIT effect (joystick: p < 0.001, ηp2 = 0.36, button-box: p < 0.001, ηp2 = 0.30). Full transfer task: it was determined that the alcohol and nonalcoholic reward cues selectively primed their respective reward-associated responses (gustatory version: p < 0.001, r = 0.59, and monetary version: p < 0.001, r = 0.84). The appetitive/aversive cues resulted in a general transfer effect (gustatory: p < 0.001, ηp2 = 0.09, and monetary: p < 0.001, ηp2 = 0.17). DISCUSSION/CONCLUSION: Single-lever PIT: PIT was observed in both task versions. We posit that the use of a joystick is more advantageous for the analysis of avoidance behavior. It evenly distributes movement between approach and avoid trials, which is relevant to analyzing fMRI data. Full transfer task: While gustatory conditioning has been used in the past to elicit transfer effects, we present the first paradigm that successfully elicits both specific and general transfers in humans with gustatory alcohol rewards.


Asunto(s)
Condicionamiento Clásico , Condicionamiento Operante , Humanos , Transferencia de Experiencia en Psicología/fisiología , Recompensa , Señales (Psicología) , Etanol
4.
Neuropsychobiology ; 81(5): 418-437, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-35843212

RESUMEN

A mechanism known as Pavlovian-to-instrumental transfer (PIT) describes a phenomenon by which the values of environmental cues acquired through Pavlovian conditioning can motivate instrumental behavior. PIT may be one basic mechanism of action control that can characterize mental disorders on a dimensional level beyond current classification systems. Therefore, we review human PIT studies investigating subclinical and clinical mental syndromes. The literature prevails an inhomogeneous picture concerning PIT. While enhanced PIT effects seem to be present in non-substance-related disorders, overweight people, and most studies with AUD patients, no altered PIT effects were reported in tobacco use disorder and obesity. Regarding AUD and relapsing alcohol-dependent patients, there is mixed evidence of enhanced or no PIT effects. Additionally, there is evidence for aberrant corticostriatal activation and genetic risk, e.g., in association with high-risk alcohol consumption and relapse after alcohol detoxification. In patients with anorexia nervosa, stronger PIT effects elicited by low caloric stimuli were associated with increased disease severity. In patients with depression, enhanced aversive PIT effects and a loss of action-specificity associated with poorer treatment outcomes were reported. Schizophrenic patients showed disrupted specific but intact general PIT effects. Patients with chronic back pain showed reduced PIT effects. We provide possible reasons to understand heterogeneity in PIT effects within and across mental disorders. Further, we strengthen the importance of reliable experimental tasks and provide test-retest data of a PIT task showing moderate to good reliability. Finally, we point toward stress as a possible underlying factor that may explain stronger PIT effects in mental disorders, as there is some evidence that stress per se interacts with the impact of environmental cues on behavior by selectively increasing cue-triggered wanting. To conclude, we discuss the results of the literature review in the light of Research Domain Criteria, suggesting future studies that comprehensively assess PIT across psychopathological dimensions.


Asunto(s)
Condicionamiento Operante , Trastornos Mentales , Humanos , Transferencia de Experiencia en Psicología/fisiología , Reproducibilidad de los Resultados , Condicionamiento Clásico , Señales (Psicología) , Recurrencia
6.
J Urol ; 199(5): 1196-1201, 2018 05.
Artículo en Inglés | MEDLINE | ID: mdl-29288120

RESUMEN

PURPOSE: We compared pathological and biochemical outcomes after radical prostatectomy in patients at favorable intermediate risk who fulfilled current NCCN® (National Comprehensive Cancer Network®) Guidelines® for active surveillance criteria to outcomes in patients who met more traditional criteria for active surveillance. MATERIALS AND METHODS: We queried our institutional review board approved prostate cancer database for patients who met NCCN criteria for very low risk (T1c, Grade Group 1, 3 or fewer of 12 cores, 50% or less core volume and prostate specific antigen density less than 0.15 ng/ml), low risk (T1-T2a, Grade Group 1 and prostate specific antigen less than 10 ng/ml) or favorable intermediate risk (major pattern grade 3 and less than 50% positive biopsy cores) and who had 1 intermediate risk factor, including T2b/c, Grade Group 2 or prostate specific antigen 10 to 20 ng/ml. Men at intermediate risk who did not meet favorable criteria were labeled as being at unfavorable intermediate risk. Patients at favorable intermediate risk were compared to those at very low and low risk, and those at unfavorable intermediate risk to identify differences in rates of adverse pathological findings at radical prostatectomy, including Gleason score Grade Group 3-5, nonorgan confined disease or nodal involvement. Time to biochemical recurrence was compared among the groups using Cox regression. RESULTS: A total of 3,686 patients underwent radical prostatectomy between January 1, 2014 and December 31, 2015. Of these men 1,454, 250 and 1,362 fulfilled the criteria for low, favorable intermediate and unfavorable intermediate risk, respectively. The rate of adverse pathological findings in favorable intermediate risk cases was significantly higher than in low risk cases and significantly lower than in unfavorable intermediate risk cases (27.4% vs 14.8% and 48.5%, respectively, each p <0.001). Time to biochemical recurrence differed significantly among the risk groups (p <0.001). CONCLUSIONS: Relative to men at low risk those at favorable intermediate risk represent a distinct group. Care should be taken when selecting these patients for active surveillance and monitoring them once they are in an active surveillance program.


Asunto(s)
Oncología Médica/normas , Prostatectomía , Neoplasias de la Próstata/diagnóstico , Espera Vigilante/normas , Anciano , Biopsia con Aguja Gruesa , Supervivencia sin Enfermedad , Humanos , Masculino , Persona de Mediana Edad , Clasificación del Tumor , Guías de Práctica Clínica como Asunto , Estudios Prospectivos , Próstata/patología , Próstata/cirugía , Antígeno Prostático Específico/sangre , Neoplasias de la Próstata/mortalidad , Neoplasias de la Próstata/patología , Neoplasias de la Próstata/cirugía , Estudios Retrospectivos , Medición de Riesgo
7.
J Subst Use Addict Treat ; 158: 209283, 2024 03.
Artículo en Inglés | MEDLINE | ID: mdl-38159911

RESUMEN

INTRODUCTION: Strong and ever-growing evidence highlights the effectiveness of recovery housing in supporting and sustaining substance use disorder (SUD) recovery, especially when augmented by intensive support that includes assertive linkages to community services. This study aims to evaluate a pilot intensive recovery support (IRS) intervention for individuals (n = 175) entering certified Level II and III recovery residences. These individuals met at least three out of five conditions (no health insurance; no driving license; substance use in the last 14 days; current unemployment; possession of less than $75 capital). The study assesses the impact of the IRS on engagement, retention, and changes in recovery capital, compared to the business-as-usual Standard Recovery Support (SRS) approach (n = 1758). METHODS: The study employed quasi-experimental techniques to create weighted and balanced counterfactual groups. These groups, derived from the Recovery Capital assessment tool (REC-CAP), enabled comparison of outcomes between people receiving IRS and those undergoing SRS. RESULTS: After reweighting for resident demographics, service needs, and barriers to recovery, those receiving IRS exhibited improved retention rates, reduced likelihood of disengagement, and growth in recovery capital after living in the residence for 6-9 months. CONCLUSION: The results from this pilot intervention indicate that intensive recovery support, which integrates assertive community linkages and enhanced recovery coaching, outperforms a balanced counterfactual group in engagement, length of stay, and recovery capital growth. We suggest that this model may be particularly beneficial to those entering Level II and Level III recovery housing with lower levels of recovery capital at admission.


Asunto(s)
Servicios Comunitarios de Salud Mental , Trastornos Relacionados con Sustancias , Humanos , Vivienda , Servicios Comunitarios de Salud Mental/métodos , Trastornos Relacionados con Sustancias/terapia , Proyectos de Investigación , Seguro de Salud
8.
Am J Psychiatry ; 181(5): 445-456, 2024 May 01.
Artículo en Inglés | MEDLINE | ID: mdl-38196336

RESUMEN

OBJECTIVE: Alcohol use disorder (AUD) constitutes a critical public health issue and has sex-specific characteristics. Initial evidence suggests that progesterone and estradiol might reduce or increase alcohol intake, respectively. However, there is a need for a better understanding of how the menstrual cycle in females and the ratio of progesterone to estradiol in females and males influence alcohol use patterns in individuals with AUD. METHODS: In this sex-separated multicenter longitudinal study, the authors analyzed 12-month data on real-life alcohol use (from 21,460 smartphone entries), menstrual cycle, and serum progesterone-to-estradiol ratios (from 667 blood samples at four individual study visits) in 74 naturally cycling females and 278 males with AUD between 2020 and 2022, using generalized and general linear mixed modeling. RESULTS: Menstrual cycle phases were significantly associated with binge drinking and progesterone-to-estradiol ratio. During the late luteal phase, females showed a lower predicted binge drinking probability of 13% and a higher predicted marginal mean of progesterone-to-estradiol ratio of 95 compared with during the menstrual, follicular, and ovulatory phases (binge drinking probability and odds ratios vs. late luteal phase, respectively: 17%, odds ratio=1.340, 95% CI=1.031, 1.742; 19%, odds ratio=1.523, 95% CI=1.190, 1.949; and 20%, odds ratio=1.683, 95% CI=1.285, 2.206; difference in progesterone-to-estradiol ratios, respectively: -61, 95% CI=-105.492, -16.095; -78, 95% CI=-119.322, -37.039; and -71, 95% CI=-114.568, -27.534). In males, a higher progesterone-to-estradiol ratio was related to lower probabilities of binge drinking and of any alcohol use, with a 10-unit increase in the hormone ratio resulting in odds ratios of 0.918 (95% CI=0.843, 0.999) and 0.914 (95% CI=0.845, 0.988), respectively. CONCLUSIONS: These ecologically valid findings suggest that high progesterone-to-estradiol ratios can have a protective effect against problematic alcohol use in females and males with AUD, highlighting the progesterone-to-estradiol ratio as a promising treatment target. Moreover, the results indicate that females with AUD may benefit from menstrual cycle phase-tailored treatments.


Asunto(s)
Consumo de Bebidas Alcohólicas , Alcoholismo , Estradiol , Ciclo Menstrual , Progesterona , Humanos , Femenino , Estradiol/sangre , Progesterona/sangre , Masculino , Adulto , Ciclo Menstrual/sangre , Estudios Longitudinales , Alcoholismo/sangre , Alcoholismo/epidemiología , Consumo de Bebidas Alcohólicas/sangre , Consumo de Bebidas Alcohólicas/epidemiología , Consumo Excesivo de Bebidas Alcohólicas/sangre , Consumo Excesivo de Bebidas Alcohólicas/epidemiología , Factores Sexuales , Persona de Mediana Edad , Adulto Joven
10.
J Am Heart Assoc ; 12(2): e026684, 2023 01 17.
Artículo en Inglés | MEDLINE | ID: mdl-36628985

RESUMEN

Background The Dietary Approaches to Stop Hypertension (DASH) diet has been shown to reduce biomarkers of cardiovascular disease. We aimed to characterize the time course of change in biomarkers of cardiac injury (high-sensitivity cardiac troponin I), cardiac strain (NT-proBNP [N-terminal pro-B-type natriuretic peptide]), and inflammation (hs-CRP [high-sensitivity C-reactive protein]) while consuming the DASH diet. Methods and Results The DASH-Sodium trial was a randomized controlled trial of 412 adults with elevated blood pressure or hypertension. Participants were randomly assigned to 12 weeks of the DASH diet or a typical American diet. Energy intake was adjusted to maintain body weight. Measurements of high-sensitivity cardiac troponin I, NT-proBNP, and hs-CRP were performed in stored serum specimens, collected at baseline and ≈4, 8, and 12 weeks after randomization. In both the control diet and DASH diet, levels of NT-proBNP decreased; however, there was no difference between diets (P-trend compared with control=0.22). On the DASH diet versus control, levels of high-sensitivity cardiac troponin I decreased progressively during follow-up (P-trend compared with control=0.025), but a statistically significant between-diet difference in change from baseline levels was not observed until week 12 (% difference, 17.78% [95% CI, -29.51% to -4.09%]). A similar pattern was evident for hs-CRP (P-trend compared with control=0.01; % difference at week 12, 19.97% [95% CI, -31.94% to -5.89%]). Conclusions In comparison with a typical American diet, the DASH diet reduced high-sensitivity cardiac troponin I and hs-CRP progressively over 12 weeks. These results suggest that the DASH diet has cumulative benefits over time on biomarkers of subclinical cardiac injury and inflammation. Registration URL: https://www.clinicaltrials.gov; Unique identifier: NCT00000608.


Asunto(s)
Enfoques Dietéticos para Detener la Hipertensión , Hipertensión , Adulto , Humanos , Proteína C-Reactiva/metabolismo , Sodio , Troponina I , Dieta , Biomarcadores , Hipertensión/diagnóstico , Inflamación , Péptido Natriurético Encefálico , Fragmentos de Péptidos , Troponina T
11.
Cardiol Rev ; 30(3): 134-144, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-34560713

RESUMEN

Physical activity and its sustained and purposeful performance-exercise-promote a broad and diverse set of metabolic and cardiovascular health benefits. Regular exercise is the most effective way to improve cardiorespiratory fitness, a measure of one's global cardiovascular, pulmonary and metabolic health, and one of the strongest predictors of future health risk. Here, we describe how exercise affects individual organ systems related to cardiometabolic health, including the promotion of insulin and glucose homeostasis through improved efficiency in skeletal muscle glucose utilization and enhanced insulin sensitivity; beneficial changes in body composition and adiposity; and improved cardiac mechanics and vascular health. We subsequently identify knowledge gaps that remain in exercise science, including heterogeneity in exercise responsiveness. While the application of molecular profiling technologies in exercise science has begun to illuminate the biochemical pathways that govern exercise-induced health promotion, much of this work has focused on individual organ systems and applied single platforms. New insights into exercise-induced secreted small molecules and proteins that impart their effects in distant organs ("exerkines") highlight the need for an integrated approach towards the study of exercise and its global effects; efforts that are ongoing.


Asunto(s)
Capacidad Cardiovascular , Enfermedades Cardiovasculares , Composición Corporal/fisiología , Capacidad Cardiovascular/fisiología , Enfermedades Cardiovasculares/etiología , Enfermedades Cardiovasculares/prevención & control , Ejercicio Físico/fisiología , Glucosa , Humanos
12.
Cardiol Rev ; 30(4): 167-178, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-34560712

RESUMEN

Physical activity (PA) and exercise are widely recognized as essential components of primary and secondary cardiovascular disease (CVD) prevention efforts and are emphasized in the health promotion guidelines of numerous professional societies and committees. The protean benefits of PA and exercise extend across the spectrum of CVD, and include the improvement and reduction of risk factors and events for atherosclerotic CVD (ASCVD), cardiometabolic disease, heart failure, and atrial fibrillation (AF), respectively. Here, we highlight recent insights into the salutary effects of PA and exercise on the primary and secondary prevention of ASCVD, including their beneficial effects on both traditional and nontraditional risk mediators; exercise "prescriptions" for ASCVD; the role of PA regular exercise in the prevention and treatment of heart failure; and the relationships between, PA, exercise, and AF. While our understanding of the relationship between exercise and CVD has evolved considerably, several key questions remain including the association between extreme volumes of exercise and subclinical ASCVD and its risk; high-intensity exercise and resistance (strength) training as complementary modalities to continuous aerobic exercise; and dose- and intensity-dependent associations between exercise and AF. Recent advances in molecular profiling technologies (ie, genomics, transcriptomics, proteomics, and metabolomics) have begun to shed light on interindividual variation in cardiometabolic responses to PA and exercise and may provide new opportunities for clinical prediction in addition to mechanistic insights.


Asunto(s)
Aterosclerosis , Fibrilación Atrial , Enfermedades Cardiovasculares , Insuficiencia Cardíaca , Enfermedades Cardiovasculares/prevención & control , Ejercicio Físico , Humanos , Factores de Riesgo
13.
Endocr Rev ; 43(3): 507-557, 2022 05 12.
Artículo en Inglés | MEDLINE | ID: mdl-35552683

RESUMEN

Recent insights into the pathophysiologic underlying mechanisms of obesity have led to the discovery of several promising drug targets and novel therapeutic strategies to address the global obesity epidemic and its comorbidities. Current pharmacologic options for obesity management are largely limited in number and of modest efficacy/safety profile. Therefore, the need for safe and more efficacious new agents is urgent. Drugs that are currently under investigation modulate targets across a broad range of systems and tissues, including the central nervous system, gastrointestinal hormones, adipose tissue, kidney, liver, and skeletal muscle. Beyond pharmacotherapeutics, other potential antiobesity strategies are being explored, including novel drug delivery systems, vaccines, modulation of the gut microbiome, and gene therapy. The present review summarizes the pathophysiology of energy homeostasis and highlights pathways being explored in the effort to develop novel antiobesity medications and interventions but does not cover devices and bariatric methods. Emerging pharmacologic agents and alternative approaches targeting these pathways and relevant research in both animals and humans are presented in detail. Special emphasis is given to treatment options at the end of the development pipeline and closer to the clinic (ie, compounds that have a higher chance to be added to our therapeutic armamentarium in the near future). Ultimately, advancements in our understanding of the pathophysiology and interindividual variation of obesity may lead to multimodal and personalized approaches to obesity treatment that will result in safe, effective, and sustainable weight loss until the root causes of the problem are identified and addressed.


Asunto(s)
Fármacos Antiobesidad , Animales , Fármacos Antiobesidad/uso terapéutico , Terapia Genética , Homeostasis , Humanos , Obesidad/tratamiento farmacológico , Obesidad/metabolismo , Pérdida de Peso
14.
Cardiol Rev ; 30(4): 206-213, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-33758125

RESUMEN

Genetic testing for cardiovascular (CV) disease has had a profound impact on the diagnosis and evaluation of monogenic causes of CV disease, such as hypertrophic and familial cardiomyopathies, long QT syndrome, and familial hypercholesterolemia. The success in genetic testing for monogenic diseases has prompted special interest in utilizing genetic information in the risk assessment of more common diseases such as atherosclerotic cardiovascular disease (ASCVD). Polygenic risk scores (PRS) have been developed to assess the risk of coronary artery disease, which now include millions of single-nucleotide polymorphisms that have been identified through genomewide association studies. Although these PRS have demonstrated a strong association with coronary artery disease in large cross-sectional population studies, there remains intense debate regarding the added value that PRS contributes to existing clinical risk prediction models such as the pooled cohort equations. In this review, we provide a brief background of genetic testing for monogenic drivers of CV disease and then focus on the recent developments in genetic risk assessment of ASCVD, including the use of PRS. We outline the genetic testing that is currently available to all cardiologists in the clinic and discuss the evolving sphere of specialized cardiovascular genetics programs that integrate the expertise of cardiologists, geneticists, and genetic counselors. Finally, we review the possible implications that PRS and pharmacogenomic data may soon have on clinical practice in the care for patients with or at risk of developing ASCVD.


Asunto(s)
Aterosclerosis , Enfermedades Cardiovasculares , Enfermedad de la Arteria Coronaria , Aterosclerosis/diagnóstico , Aterosclerosis/epidemiología , Aterosclerosis/genética , Cardiólogos , Enfermedades Cardiovasculares/diagnóstico , Enfermedades Cardiovasculares/epidemiología , Enfermedades Cardiovasculares/genética , Enfermedad de la Arteria Coronaria/diagnóstico , Enfermedad de la Arteria Coronaria/epidemiología , Enfermedad de la Arteria Coronaria/genética , Estudios Transversales , Humanos , Medición de Riesgo , Factores de Riesgo
15.
Hypertension ; 79(7): 1319-1326, 2022 07.
Artículo en Inglés | MEDLINE | ID: mdl-35465684

RESUMEN

The prevalence of nonalcoholic fatty liver disease (NAFLD) is rising. NAFLD/nonalcoholic steatohepatitis (NASH) is associated not only with hepatic morbidity and mortality but also with an increased cardiovascular risk. NAFLD and cardiovascular disease (CVD) share several risk factors, such as obesity, metabolic syndrome, hypertension, dyslipidemia, type 2 diabetes, and chronic kidney disease. This review summarizes the evidence linking cardiometabolic risk factors and NAFLD in the context of risk for CVD. The cause of NAFLD/NASH is complex, involving a range of factors from genetics to lifestyle and energy balance. Genetically driven high liver fat content does not appear to be causally associated with increased CVD risk. In contrast, metabolic dysfunction not only predisposes to liver pathology but also leads to a significantly higher CVD risk. Given that NAFLD pathophysiology is influenced by multiple factors, each patient is unique as to their risk of developing CVD and liver pathology. At the same time, the rising burden of NAFLD/NASH is closely linked with the global increase in metabolic disorders, including obesity and type 2 diabetes. Therefore, both personalized therapeutic approaches that recognize individual pathophysiology, as well as public health policies that address the root causes of cardiometabolic risk factors for NAFLD may be needed to effectively address the NAFLD/NASH epidemic.


Asunto(s)
Enfermedades Cardiovasculares , Diabetes Mellitus Tipo 2 , Enfermedad del Hígado Graso no Alcohólico , Factores de Riesgo Cardiometabólico , Enfermedades Cardiovasculares/epidemiología , Enfermedades Cardiovasculares/etiología , Enfermedades Cardiovasculares/metabolismo , Diabetes Mellitus Tipo 2/complicaciones , Diabetes Mellitus Tipo 2/epidemiología , Humanos , Enfermedad del Hígado Graso no Alcohólico/epidemiología , Enfermedad del Hígado Graso no Alcohólico/metabolismo , Obesidad/complicaciones , Obesidad/epidemiología , Factores de Riesgo
16.
Hypertension ; 79(11): 2388-2396, 2022 11.
Artículo en Inglés | MEDLINE | ID: mdl-35924561

RESUMEN

Orthostatic hypotension affects roughly 10% of individuals with hypertension and is associated with several adverse health outcomes, including dementia, cardiovascular disease, stroke, and death. Among adults with hypertension, orthostatic hypotension has also been shown to predict patterns of blood pressure dysregulation that may not be appreciated in the office setting, including nocturnal nondipping. Individuals with uncontrolled hypertension are at particular risk of orthostatic hypotension and may meet diagnostic criteria for the condition with a smaller relative reduction in blood pressure compared with normotensive individuals. Antihypertensive medications are commonly de-prescribed to address orthostatic hypotension; however, this approach may worsen supine or seated hypertension, which may be an important driver of adverse events in this population. There is significant variability between guidelines for the diagnosis of orthostatic hypotension with regards to timing and position of blood pressure measurements. Clinically relevant orthostatic hypotension may be missed when standing measurements are delayed or when taken after a seated rather than supine position. The treatment of orthostatic hypotension in patients with hypertension poses a significant management challenge for clinicians; however, recent evidence suggests that intensive blood pressure control may reduce the risk of orthostatic hypotension. A detailed characterization of blood pressure variability is essential to tailoring a treatment plan and can be accomplished using both in-office and out-of-office monitoring.


Asunto(s)
Distinciones y Premios , Hipertensión , Hipotensión Ortostática , Humanos , Hipotensión Ortostática/tratamiento farmacológico , Hipertensión/complicaciones , Hipertensión/diagnóstico , Hipertensión/tratamiento farmacológico , Presión Sanguínea , Antihipertensivos/uso terapéutico
17.
Atheroscler Plus ; 50: 25-31, 2022 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-36643797

RESUMEN

Background: Limited data exist on the risk profile and outcomes among young patients with acute myocardial infarction(AMI) in low-and middle-income countries(LMICs). This study explored differences in the clinical characteristics, medical care, and outcomes of AMI in young adults in India with a subanalysis focusing on sex disparities amongst the young. Methods: Using the Acute Coronary Syndrome Quality Improvement in Kerala trial database, we compared baseline characteristics, management, and outcomes amongst the young patients(≤50 years) and their older counterparts. The primary outcomes were the rates of in-hospital and 30-day composite of in-hospital major adverse cardiovascular events(MACE). Results: Of the 21,374 adults enrolled, 4762(22%) were young, of which 614 (12.9%) were females. Young patients with AMI were more likely to be smokers(41.9% vs. 27.8%;P < 0.001) and undergo coronary angiography (66.3%vs.57.3%;P < 0.001) and percutaneous coronary intervention (PCI)(57.5% vs. 47.0%;P < 0.001), compared to older patients. After adjustment for potential confounders, younger patients had a lower likelihood of in-hospital (RR = 0.49; 95%CI 0.40-0.61;P < 0.001) and 30-day MACE (RR = 0.54; 95%CI 0.46-0.64;P < 0.001). Subgroup analysis comparing young males and females revealed worse cardiovascular risk profile among young women except for smoking. In-hospital MACE(RR = 1.60; 95%CI, 1.0-2.45;P = 0.048) were higher for young women compared to men. Conclusion: Young AMI patients had higher prevalence of modifiable risk factors, were more likely to receive reperfusion therapy, and had better short and intermediate outcomes, compared to older patients. Compared to young men with AMI, young women had worse cardiovascular risk profile, were less likely to be treated with diagnostic angiography or PCI and experienced higher in-hospital death and MACE.

18.
Am J Hypertens ; 35(4): 337-346, 2022 04 02.
Artículo en Inglés | MEDLINE | ID: mdl-34718403

RESUMEN

BACKGROUND: The Trial of Nonpharmacologic Interventions in the Elderly (TONE) demonstrated the efficacy of weight loss and sodium reduction to reduce hypertension medication use in older adults. However, the longer-term effects of drug withdrawal (DW) on blood pressure (BP), adverse events, and orthostatic symptoms were not reported. METHODS: TONE enrolled adults, ages 60-80 years, receiving treatment with a single antihypertensive and systolic BP (SBP)/diastolic BP <145/<85 mm Hg. Participants were randomized to weight loss, sodium reduction, both, or neither (usual care) and followed up to 36 months; ~3 months postrandomization, the antihypertensive was withdrawn and only restored if needed for uncontrolled hypertension. BP and orthostatic symptoms (lightheadedness, feeling faint, imbalance) were assessed at randomization and throughout the study. Two physicians independently adjudicated adverse events, masked to intervention, classifying symptomatic (lightheadedness, dizziness, vertigo), or clinical events (fall, fracture, syncope). RESULTS: Among the 975 participants (mean age 66 years, 48% women, 24% black), mean (±SD) BP was 128 ± 9/71 ± 7 mm Hg. Independent of assignment, DW increased SBP by 4.59 mm Hg (95% confidence interval [CI]: 3.89, 5.28) compared with baseline. There were 113 adverse events (84 symptomatic, 29 clinical), primarily during DW. Compared with usual care, combined weight loss and sodium reduction mitigated the effects of DW on BP (ß = -4.33 mm Hg; 95% CI: -6.48, -2.17) and reduced orthostatic symptoms long term (odds ratio = 0.62; 95% CI: 0.41, 0.92), without affecting adverse events (hazard ratio = 1.81; 95% CI: 0.90, 3.65). In contrast, sodium reduction alone increased risk of adverse events (hazard ratio = 1.75; 95% CI: 1.04, 2.95), mainly during DW. CONCLUSIONS: In older adults, antihypertensive DW may increase risk of symptomatic adverse events, highlighting the need for caution in withdrawing their antihypertensive medications. CLINICAL TRIALS REGISTRATION: Trial Number NCT00000535.


Asunto(s)
Deprescripciones , Hipertensión , Anciano , Anciano de 80 o más Años , Antihipertensivos/efectos adversos , Presión Sanguínea , Femenino , Humanos , Hipertensión/inducido químicamente , Hipertensión/diagnóstico , Hipertensión/tratamiento farmacológico , Masculino , Persona de Mediana Edad , Pérdida de Peso
19.
Mayo Clin Proc ; 96(4): 875-886, 2021 04.
Artículo en Inglés | MEDLINE | ID: mdl-33714594

RESUMEN

OBJECTIVE: To explore the possible associations of serum 25-hydroxyvitamin D [25(OH)D] concentration with coronavirus disease 2019 (COVID-19) in-hospital mortality and need for invasive mechanical ventilation. PATIENTS AND METHODS: A retrospective, observational, cohort study was conducted at 2 tertiary academic medical centers in Boston and New York. Eligible participants were hospitalized adult patients with laboratory-confirmed COVID-19 between February 1, 2020, and May 15, 2020. Demographic and clinical characteristics, comorbidities, medications, and disease-related outcomes were extracted from electronic medical records. RESULTS: The final analysis included 144 patients with confirmed COVID-19 (median age, 66 years; 64 [44.4%] male). Overall mortality was 18%, whereas patients with 25(OH)D levels of 30 ng/mL (to convert to nmol/L, multiply by 2.496) and higher had lower rates of mortality compared with those with 25(OH)D levels below 30 ng/mL (9.2% vs 25.3%; P=.02). In the adjusted multivariable analyses, 25(OH)D as a continuous variable was independently significantly associated with lower in-hospital mortality (odds ratio, 0.94; 95% CI, 0.90 to 0.98; P=.007) and need for invasive mechanical ventilation (odds ratio, 0.96; 95% CI, 0.93 to 0.99; P=.01). Similar data were obtained when 25(OH)D was studied as a continuous variable after logarithm transformation and as a dichotomous (<30 ng/mL vs ≥30 ng/mL) or ordinal variable (quintiles) in the multivariable analyses. CONCLUSION: Among patients admitted with laboratory-confirmed COVID-19, 25(OH)D levels were inversely associated with in-hospital mortality and the need for invasive mechanical ventilation. Further observational studies are needed to confirm these findings, and randomized clinical trials must be conducted to assess the role of vitamin D administration in improving the morbidity and mortality of COVID-19.


Asunto(s)
COVID-19 , Respiración Artificial , Deficiencia de Vitamina D , Vitamina D/análogos & derivados , COVID-19/inmunología , COVID-19/mortalidad , COVID-19/fisiopatología , COVID-19/terapia , Femenino , Mortalidad Hospitalaria , Hospitalización/estadística & datos numéricos , Humanos , Masculino , Persona de Mediana Edad , New York/epidemiología , Evaluación de Procesos y Resultados en Atención de Salud , Respiración Artificial/métodos , Respiración Artificial/estadística & datos numéricos , Estudios Retrospectivos , SARS-CoV-2/aislamiento & purificación , Índice de Severidad de la Enfermedad , Centros de Atención Terciaria/estadística & datos numéricos , Vitamina D/sangre , Deficiencia de Vitamina D/diagnóstico , Deficiencia de Vitamina D/epidemiología , Deficiencia de Vitamina D/inmunología , Deficiencia de Vitamina D/terapia
20.
J Am Soc Echocardiogr ; 34(1): 30-37, 2021 01.
Artículo en Inglés | MEDLINE | ID: mdl-33071045

RESUMEN

BACKGROUND: Characteristics of tricuspid valve prolapse (TVP) on transthoracic echocardiography are not well defined. As tricuspid valve interventions are increasingly considered, information on the definition and clinical significance of TVP is needed. METHODS: At the authors' institution, between January 26, 2000, and September 20, 2018, 410 patients (0.3%) were determined to have suspected TVP. These transthoracic echocardiograms and those of 97 age- and sex-matched normal control subjects were reviewed. Interrater agreement on TVP by visual inspection was assessed in a blinded subset. Leaflet atrial displacement (AD) > 2 SDs above the mean in normal control subjects was used to identify an empiric definition of TVP Features of patients meeting this definition were evaluated. RESULTS: Three hundred twelve transthoracic echocardiograms with available and interpretable images (76.1%) were included. Interrater agreement on TVP diagnosis by visual inspection was moderate. Normal values of AD were up to 4 mm in the right ventricular inflow view and 2 mm in all other views. AD > 2 mm in the parasternal short-axis view had the best accuracy against suspected TVP to identify TVP. Those with TVP by this definition more frequently had 3 to 4+ tricuspid regurgitation (22.2% vs 3.1%; P < .001), mitral valve prolapse (MVP; 75.0% vs 3.1%; P < .001), and more clinically significant MVP (greater prevalence of 3 to 4+ mitral regurgitation). No difference in mortality was observed in those with isolated TVP versus TVP and MVP (log-rank P = .93). CONCLUSIONS: In the largest study of TVP to date, interrater agreement on TVP diagnosis by visual inspection was moderate. A cutoff of >2-mm AD in the parasternal short-axis view was optimal to define TVP. Those with TVP by this definition had more significant tricuspid regurgitation, larger right ventricles, and more clinically significant MVP. Overall, these results suggest an increased role for surveillance for TVP and the need for clear diagnostic criteria in updated guidelines.


Asunto(s)
Insuficiencia de la Válvula Mitral , Prolapso de la Válvula Mitral , Insuficiencia de la Válvula Tricúspide , Prolapso de la Válvula Tricúspide , Ecocardiografía , Humanos , Prolapso de la Válvula Mitral/diagnóstico por imagen , Válvula Tricúspide/diagnóstico por imagen , Insuficiencia de la Válvula Tricúspide/diagnóstico por imagen
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