Search

Background: Carotenoids, potent antioxidants in fruits and vegetables, have recently garnered attention for their potential therapeutic effects against neurodegenerative diseases. This study focuses on the interaction and anti-aggregation properties of conventional and unconventional carotenoids found in red mamey fruit, a nutraceutical fruit that is a rich source of these compounds. Objective: To assess computational the interaction between of amyloid-β (Aβ) peptide with a set of carotenoids and three carotenoids previously explored in experimental assays as well as to assess ADMET prediction of carotenoids selected by computational analysis results. Methods: We analyzed the interaction between these carotenoids and Aβ peptides using molecular docking, a key factor in Alzheimer's disease (AD) pathology. Selected carotenoids were compared with the reference compounds cryptocapsin (1), zeaxanthin (2), lutein (3), and cryptocapsin-5,6-epoxide (24), which previously demonstrated significant anti-aggregation activity against Aβ. Using SwissADME and ADMET Predictor® software to determine the pharmaceutical analysis prediction. Results: Computational analysis identified (5R,8R)-sapotexanthin-5,8-epoxide (19) and (5S,8S)-cryptocapsin-5,8-epoxide (26) as the most promising candidates due to their strong binding affinity and potential anti-aggregation properties against Aβ. The pharmaceutical analysis identified compounds (5S,8S)-cryptocapsin-5,8-epoxide (26) and (5R,8R)-cryptocapsin-5,8-epoxide (28) as the most promising compounds. Our findings suggest that specific modifications in the carotenoid structure, particularly modifications in the type of epoxidation and stereochemistry, can significantly influence the biological activity of carotenoids and biopharmaceutical performance. Conclusions: These results provide valuable insights for future in vitro studies of most potential carotenoids (19 and 26) and the development of potential therapeutic agents for AD. [ABSTRACT FROM AUTHOR]

The population of Hispanic older adults is growing along with the burden of chronic diseases. This cross-sectional study aims to assess the factors associated with frailty among community-dwelling Hispanic women aged ≥60 years (n = 357) enrolled in the Panama Aging Research Initiative—Health Disparities study of cognitive-functional health of older persons in Panama. Cognitive function was assessed with a neuropsychological test battery. Depression was measured with the Geriatric Depression Scale. Frailty was defined using the Fried criteria and participants were classified as non-frail, pre-frail or frail. A subsample (n = 281) provided fasting blood samples for quantification of protein biomarkers. Associations were examined using hierarchical multiple linear regressions. 59.4% and 9.0% of participants (M = 69.2 years, SD = 6.3) were pre-frail and frail, respectively. Having more depression (β =.28, p <.001) was significantly associated with frailty, even after covariate adjustment. Cognitive function was not associated with frailty. Higher pTau181 levels were associated with increased frailty (β =.13, p =.039), whereas higher α2M levels were associated with decreased frailty (β = −.16, p =.004). These findings advance the search for health indicators and biomarkers of frailty and warrant further studies to decrease the burden of frailty among older Hispanic women. [ABSTRACT FROM AUTHOR]

Background: A growing body of evidence points to potential risks associated with polypharmacy (using ≥5 medications) in older adults, but most evidence is derived from studies where racial and ethnic minorities remain underrepresented among research participants. Objective: Investigate the association between polypharmacy and cognitive function, subjective health state, frailty, and falls in Hispanic older adults. Methods: Panama Aging Research Initiative–Health Disparities (PARI-HD) is a community-based cohort study of older adults free of dementia at baseline. Cognitive function was measured with a neuropsychological test battery. Frailty assessment was based on the Fried criteria. Subjective health state and falls were self-reported. Linear and multinomial logistic regression analyses were used to examine association. Results: Baseline evaluations of 468 individuals with a mean age of 69.9 years (SD = 6.8) were included. The median number of medications was 2 (IQR: 1–4); the rate of polypharmacy was 19.7% (95% confidence interval [CI] = 16.1–23.3). Polypharmacy was inversely associated with self-rated overall health (b =−5.89, p < 0.01). Polypharmacy users had 2.3 times higher odds of reporting two or more falls in the previous 12 months (odds ratio [OR] = 2.31, 95% CI = 1.06–5.04). Polypharmacy was independently associated with Fried's criteria for pre-frailty (OR = 2.90, 95% CI = 1.36–5.96) and frailty (OR = 5.14, 95% CI = 1.83–14.42). Polypharmacy was not associated with cognitive impairment. Conclusions: These findings illustrate the potential risks associated with polypharmacy among older adults in Panama and may inform interventions to improve health outcomes in this population. [ABSTRACT FROM AUTHOR]

Background: The Panama Aging Research Initiative (PARI) is a longitudinal study of more than 800 adults aged 60 years and older. The objective of this analysis consists of identifying the effects of Apolipoprotein E (ApoE) gene as a risk factor for sporadic Alzheimer's disease (AD), with elevated risk for ε4‐carriers and reduced risk for ε2‐carriers. Method: Our ongoing community‐based cohort (n = 400) has undergone clinical interviews, neuropsychological testing, and assessments of frailty at two time points (14‐29 months apart). Fasting blood draws were obtained for measurements of genetic and blood‐based biological markers. DNA was extracted from whole blood and (ApoE) genotyping (n = 330) was conducted according to standardized PCR procedures. We will examine whether ε2 and ε4 are associated with differential rates of normal cognitive aging, and whether associations of ε4 with cognitive decline are modified by sex, education or other health conditions common among older adults in Panama, including chronic illnesses, polypharmacy and frailty. Result: Our study evaluate whether ApoE ε2, ε3 and ε4 allele frequency is a significant factor associated with cognition and daily function in elderly individuals. Specifically, we focus on evaluating the frequency of ApoE ε4 expression as a risk for cognitive impairment. Together these results contribute to our understanding of the risk factors of cognitive outcomes among Hispanic populations outside the US. Conclusion: Little is known about the factors associated to cognitive health at old age in Central American populations. Genetic biomarkers could be used as a tool for diagnostic testing. It is expected that ApoE‐ε4 polymorphism will correlate with cognitive deficit among the elderly population and those at risk for cognitive impairment. [ABSTRACT FROM AUTHOR]

The population of Hispanic older adults is growing along with the burden of chronic diseases. This cross-sectional study aims to assess the factors associated with frailty among community-dwelling Hispanic women aged ≥60 years ( n  = 357) enrolled in the Panama Aging Research Initiative-Health Disparities study of cognitive-functional health of older persons in Panama. Cognitive function was assessed with a neuropsychological test battery. Depression was measured with the Geriatric Depression Scale. Frailty was defined using the Fried criteria and participants were classified as non-frail, pre-frail or frail. A subsample ( n  = 281) provided fasting blood samples for quantification of protein biomarkers. Associations were examined using hierarchical multiple linear regressions. 59.4% and 9.0% of participants ( M  = 69.2 years, SD  = 6.3) were pre-frail and frail, respectively. Having more depression (β = .28, p  < .001) was significantly associated with frailty, even after covariate adjustment. Cognitive function was not associated with frailty. Higher pTau181 levels were associated with increased frailty (β = .13, p  = .039), whereas higher α2M levels were associated with decreased frailty (β = -.16, p  = .004). These findings advance the search for health indicators and biomarkers of frailty and warrant further studies to decrease the burden of frailty among older Hispanic women., Competing Interests: The author(s) declared no potential conflicts of interest with respect to the research, authorship, and/or publication of this article., (© The Author(s) 2024.)