A non-destructive predictive model for estimating the freshness/spoilage of packaged chicken meat using changes in drip metabolites.

This study investigates the possibility of utilizing drip as a non-destructive method for assessing the freshness and spoilage of chicken meat. The quality parameters [pH, volatile base nitrogen (VBN), and total aerobic bacterial counts (TAB)] of chicken meat were evaluated over a 13-day storage period in vacuum packaging at 4 °C. Simultaneously, the metabolites in the chicken meat and its drip were measured by nuclear magnetic resonance. Correlation (Pearson's and Spearman's rank) and pathway analyses were conducted to select the metabolites for model training. Binary logistic regression (model 1 and model 2) and multiple linear regression models (model 3-1 and model 3-2) were trained using selected metabolites, and their performance was evaluated using receiver operating characteristic (ROC) curves. As a result, the chicken meat was spoiled after 7 days of storage, exceeding 20 mg/100 g VBN and 5.7 log CFU/g TAB. The correlation analysis identified one organic acid, eight free amino acids, and five nucleic acids as highly correlated with chicken meat and its drip during storage. Pathway analysis revealed tyrosine and purine metabolism as metabolic pathways highly correlated with spoilage. Based on these findings, specific metabolites were selected for model training: ATP, glutamine, hypoxanthine, IMP, tyrosine, and tyramine. To predict the freshness and spoilage of chicken meat, model 1, trained using tyramine, ATP, tyrosine, and IMP from chicken meat, achieved a 99.9 % accuracy and had an ROC value of 0.884 when validated using drip metabolites. This model 1 was improved by training with tyramine and IMP from both chicken meat and its drip (model 2), which increased the ROC value for drip metabolites from 0.884 to 0.997. Finally, selected two metabolites (tyramine and IMP) can predict TAB and VBN quantitatively through models 3-1 and 3-2, respectively. Therefore, the model developed using metabolic changes in drip demonstrated the capability to non-destructively predict the freshness and spoilage of chicken meat at 4 °C. To make generic predictions, it is necessary to expand the model's applicability to various conditions, such as different temperatures, and validate its performance across multiple chicken batches.

Transgender older adults' prior military service: Mental health differences by gender identification.

Despite a proportionally higher likelihood of serving, the role of prior military service in the mental health of transgender individuals is understudied. Research on the impact of military service on mental health tends to be proximal. We examined the distal relationship between prior military service, identity stigma, and mental health among transgender older adults, drawing comparisons between transgender men and women. We conducted a series of weighted multivariate linear models to predict the relationships between prior military service, identity stigma, perceived stress, and depression among 183 transgender women and men aged 51-87 (M = 60.11, SD = 0.668) using 2014 data from the National Health, Aging, and Sexuality/Gender Study. Prior military service was negatively associated with depression and perceived stress; identity stigma was positively associated with both. Prior military service and lower depression and perceived stress were significant for transgender men, but not women. Identity stigma was significant with depression and perceived stress among transgender women, but not transgender men. Our preliminary findings suggest that prior military service may serve as a protective factor for mental health among transgender men, but not transgender women. We need to better understand how military experience interacts with other characteristics, such as differing gender identities influences the mental health of transgender service members. Further research is needed to inform underlying mechanisms whereby military service differentially impacts mental health by gender identity so all active-duty personnel can share in the many benefits that accrue from military service, including protective effects on mental health in later life. (PsycInfo Database Record (c) 2024 APA, all rights reserved).

Multidimensional social connectedness of sexual and gender minority midlife and older adults: Findings from the National Health, Aging, and Sexuality/Gender Study (NHAS).

This article introduces the multidimensional properties of social connectedness among sexual and gender minority (SGM) midlife and older adults and examines the relationship between these properties and general health. Data were analyzed from Aging With Pride: National, Aging, and Sexuality/Gender Study, including 2,450 SGM adults aged 50 and older in the United States. The structure, function, and quality of interpersonal relations as well as community-level activities and engagement were measured through a self-administered survey and an in-person interview. Findings indicated that SGM midlife and older adults, on average, had a large social network with high bridging potential and low density, consisting of more nonrelative family members than immediate family members. They also showed frequent availability of social support, moderate or higher satisfaction with interpersonal relations, and moderate SGM community engagement. Properties of social connectedness differed by gender, sexual identity, and gender identity, with SGM men, sexually diverse women, and transgender people showing distinct challenges in interpersonal relations. All aspects of social connectedness were positively associated with good general health, particularly network diversity, outdoor leisure activity engagement, and access to health-related decision support, controlling for age and chronic conditions. Care receiving and loneliness were negatively associated with good general health. Intervention development can target these factors to promote social and community connectivity and reduce the negative health effects of persistent social stressors. This study underscores the necessity of addressing all facets (i.e., structure, function, and quality) of interpersonal relations encompassing both immediate and chosen family as well as community-level social connectedness. (PsycInfo Database Record (c) 2024 APA, all rights reserved).

Risk factors of adjacent-segment disease after short-segment fusion in patients with de novo degenerative lumbar scoliosis.

OBJECTIVE: Short-segment fusion (SSF) is an effective surgical option for appropriately selected patients with de novo degenerative lumbar scoliosis (DNDLS). Considering that DNDLS is frequently accompanied by multisegment degeneration and potential instability across the entire lumbar segments, it is inevitable that unhealthy segments remain after SSF, thereby increasing the potential risk of adjacent-segment disease (ASD) occurrence. Therefore, the authors aimed to identify the risk factors for ASD in patients with DNDLS who underwent SSF. METHODS: This retrospective study included 80 patients with DNDLS (Cobb angle > 10°) who underwent SSF (1 or 2 levels) between December 2010 and July 2018 with a minimum follow-up duration of 5 years. The participants were divided into two groups: ASD and non-ASD. ASD was defined as clinical ASD rather than radiographic ASD. Various patient and operative variables were compared between the groups. Global and regional radiographic parameters (preoperatively and postoperatively) were also compared between the two groups using plain radiography and MRI. Consequently, univariate and multivariate analyses were conducted to identify the risk factors for ASD occurrence. The receiver operating characteristic (ROC) curve was used to calculate the cutoff values. RESULTS: The mean ± SD age was 67.7 ± 7.2 years at the time of SSF, and there were 62 women (77.5%) enrolled in the study. Thirty patients (37.5%) were in the ASD group and 50 patients (62.5%) were in the non-ASD group. The mean time from the surgery to ASD diagnosis was 34.9 ± 28.2 months in ASD group. Thirteen patients required revision surgery at a mean time of 8.8 ± 7.0 months after ASD occurrence. Multivariate logistic regression analysis demonstrated that preoperative disc wedging angle (OR 1.806, 95% CI 1.255-2.598, p = 0.001), presence of facet tropism (defined as ≥ 10° difference between the facet joint angles of the right and left sides) (OR 5.534, 95% CI 1.528-20.040, p = 0.009), and foraminal stenosis ≥ grade 2 (OR 5.935, 95% CI 1.253-28.117, p = 0.025) were significant risk factors for ASD development. The cutoff value of the preoperative disc wedging angle was calculated to be 2.5° using the ROC curve. CONCLUSIONS: Preoperative disc wedging angle ≥ 2.5°, presence of facet tropism, and foraminal stenosis ≥ grade 2 were identified as significant risk factors for ASD development after SSF in patients with DNDLS.

Effects of a 2-Week Kinect-Based Mixed-Reality Exercise Program on Prediabetes: A Pilot Trial during COVID-19.

Background: Pre-diabetes can develop into type 2 diabetes mellitus, but can prevented by regular exercise. However, the outcomes when combining unsupervised Kinect-based mixed-reality (KMR) exercise with continuous glucose monitoring (CGM) remain unclear. Therefore, this single-arm pilot trial examined changes in blood glucose (BG) concentrations over 672 hours (4 weeks), including a 2-week period of KMR exercise and CGM in individuals with pre-diabetes. Methods: This was a pre-and post-treatment case-control study with nine participants. General questionnaires were administered and body composition, fasting BG concentrations, and 2-hour oral glucose tolerance test (2-OGTT) results were measured pre-and post-treatment. Weekly average glucose concentrations, hyperglycemia rate, hypoglycemia rate, average glucose concentration over time, amount of physical activity, amount of food intake, and pre- and postprandial BG (immediately and 30, 60, 90, and 120 minutes after lunch) were measured over 4 weeks (pre-test, exercise, and post -test weeks). Glucose concentrations were measured before exercising, between sets, and 30 and 60 minutes after exercise during the 2 weeks of unsupervised exercise (3 days/week). Results: In all participants, body mass index (27.16±2.92 kg/m2), fasting BG (108.00±7.19 mg/dL), 2-OGTT (162.56±18.12 mg/dL), hyperglycemia rate (P=0.040), and 90-minute postprandial BG (P=0.035) were significantly reduced during the 2 exercise weeks, and the 2-OGTT result (P=0.044) and diastolic blood pressure (DBP) (P=0.046) were significantly reduced at the post -test as compared with the pre-test. Conclusion: This study found that 2 weeks of unsupervised KMR exercise reduced 2-OGTT, DBP, hyperglycemia rate, and 90-minute postprandial BG concentration. We believed this effect could be identified more clearly in studies involving a larger number of participants and longer durations of exercise.

Effect of monopolar diathermy power settings on postoperative pain, wound healing, and tissue damage after tonsillectomy: a randomized clinical trial.

This study aimed to assess the impact of varying monopolar diathermy power settings on postoperative pain, hemorrhage, and wound healing following tonsillectomy. A single-center, prospective, randomized, double-blinded, controlled clinical study was conducted. During bilateral tonsillectomy procedures, one tonsil received low-power settings (15 W, cutting/blend) while the other tonsil received high-power settings (35 W, cutting/blend). Postoperative pain scores (0-10) and wound healing scores (0-3) were evaluated immediately after surgery and at 1, 2, and 4 weeks postoperatively using the visual analog scale. Additionally, histological analysis was performed on electrically resected tonsil tissues to assess tissue damage in the tonsil bed. The allocation of high and low power settings to each side was randomized. Results showed that 1 week after the surgery, the high-power group experienced significantly higher pain scores (mean ± standard deviation: 4.84 ± 2.21) compared to the low-power group (3.56 ± 2.24, p = 0.049). Moreover, the high-power side exhibited slower wound healing during the initial 1-2 weeks postoperatively, as indicated by lower wound scores at 2 weeks (high-power: 1.96 ± 0.64; low-power: 2.43 ± 0.59, p = 0.008). Furthermore, histological analysis revealed significantly deeper tissue degradation on the high-power side compared to the low-power side (p < 0.001), with mean depths of 565.2 ± 291.0 µm and 156.0 ± 36.8 µm, respectively. In conclusion, these findings suggest that when employing monopolar diathermy in tonsillectomy, lower power settings can lead to improved outcomes in terms of postoperative pain, wound healing, and tissue damage.Trial registration: CRIS identifier: KCT0005670 (cris.nih.go.kr, registration date: 11/12/2020).

Recalibrating the Experimentally Derived Structure of the Metastable Surface Oxide on Copper via Machine Learning-Accelerated In Silico Global Optimization.

The oxidation of copper and its surface oxides are gaining increasing attention due to the enhanced CO2 reduction reaction (CO2RR) activity exhibited by partially oxidized copper among the copper-based catalysts. The "8" surface oxide on Cu(111) is seen as a promising structure for further study due to its resemblance to the highly active Cu2O(110) surface in the C-C coupling of the CO2RR, setting it apart from other O/Cu(111) surface oxides resembling Cu2O(111). However, recent X-ray photoelectron spectroscopy analysis challenges the currently accepted atomic structure of the "8" surface oxide, prompting a need for reevaluation. This study highlights the limitations of conventional methods when addressing such challenges, leading us to adopt global optimization search techniques. After a rigorous process to ensure robustness, the unbiased global minimum of the "8" surface oxide is identified. Interestingly, this configuration differs significantly from other surface oxides and also from previous "8" models while retaining similarities to the Cu2O(110) surface.

Predictor of Postoperative Ambulatory Recovery in Metastatic Spinal Cord Compression with Delayed Surgical Timing and Progressive Paraplegia.

OBJECTIVE: To analyze preoperative predictors of ambulatory recovery after surgical treatment in metastatic spinal cord compression (MSCC) patients with delayed surgical timing and progressive paraplegia. METHODS: We reviewed patients with a preoperative lower-extremity motor grade of ≤3 and surgical timing ≥48 hours after the nonambulatory status. The recovery group (group R) and nonrecovery group (group NR) were classified according to ambulation assessment during follow-up. The data on patient demographics, origin of the primary tumor, pre and postoperative chemotherapy and radiation therapy, surgical procedures, Tokuhashi score, Karnofsky score, preoperative lower-extremity motor grade, and surgical timing were collected for analyzing predictors of postoperative ambulatory recovery. RESULTS: Of the 55 patients, 24 (43.6%) were group R and 31 patients were group NR. The preoperative motor grade of the lower extremities was the only predictive factor (P < 0.05). The mean hip flexor and knee extensor motor grades in group R were 2.0 ± 1.0 and 2.4 ± 1.1 respectively, while in group NR, they were 1.2 ± 1.0 and 1.3 ± 1.0. The odds ratios for failing to regain ambulatory ability were 12.6 in the knee extensor and 4.8 in the hip flexor when the motor grades 0-2 and 3 groups were compared. The rescue ratio of the preoperative hip flexor and knee extensor motor grade 0-2 group were 34.1% and 21.2%, grades 3 group were 71.4% and 77.3%, respectively. CONCLUSIONS: The significant predictive factor for ambulatory recovery was the preoperative lower-extremity motor grade. The preoperative knee extensor motor grade was identified as a more important factor than hip flexor motor grade in predicting ambulatory recovery.

Health, Economic, and Social Disparities among Lesbian, Gay, Bisexual, and Sexually Diverse Adults: Results from a Population-Based Study.

We investigated health, economic, and social disparities among lesbian, gay, bisexual, and sexually diverse adults, 18 years and older. Analyzing 2011-2019 Washington State Behavioral Risk Factor Surveillance System (N = 109,527), we estimated and compared the prevalence rates of background characteristics, economic and social indicators, health outcomes, chronic conditions, health care access, health behaviors, and preventive care by gender and sexual identity. Sexual minority adults reported heightened risks of poor general health, physical and mental health, disability, subjective cognitive decline, and financial barriers to health care, compared with their straight counterparts. Economic disparities and disability were evident for lesbians and both bisexual adult women and men. We found higher rates of smoking and excessive drinking among lesbians and bisexual women, and higher rates of smoking and living alone among gay men. Sexually diverse adults experience disparities in health care access. This study is one of the first to identify disparities among sexually diverse populations, in addition to lesbian, gay, and bisexual adults. More research is required to understand the mechanisms of disparities within these groups to address their distinct intervention needs.

Clinical Significance of Lordosis Orientation on Proximal Junctional Kyphosis Development in Long-Segment Fusion Surgery for Adult Spinal Deformity.

OBJECTIVE: We sought to evaluate the clinical impact of lordosis orientation (LO) on proximal junctional kyphosis (PJK) development in adult spinal deformity surgery. METHODS: This study included 152 patients who underwent low thoracic (T9-T12) to pelvis fusion and were followed up for ≥2 years. In the literature, 6 radiographic parameters representing LO were introduced, such as uppermost instrumented vertebra (UIV) slope, UIV inclination, UIV-femoral angle (UIVFA), thoracolumbar tilt, thoracolumbar slope, and lordosis tilt. Various clinical and radiographic factors including 6 LO parameters were investigated using logistic regression analysis to identify risk factors for PJK. RESULTS: The mean age was 69.4 years, and 136 patients were females (89.5%). PJK developed in 65 patients (42.8%). Multivariate logistic regression analysis revealed that only small postoperative pelvic incidence (PI)-lumbar lordosis (LL) (odds ratio [OR] = 0.962, 95% confidence interval: 0.929-0.996, P = 0.030) and large UIVFA (OR = 1.089, 95% confidence interval: 1.028-1.154, P = 0.004) were significant for PJK development. UIVFA showed significantly positive correlation with pelvic tilt (CC = 0.509), thoracic kyphosis (CC = 0.384), and lordosis distribution index (CC = 0.223). UIVFA was also negatively correlated with sagittal vertical axis (CC = -0.371). However, UIVFA did not correlate with LL, PI-LL, or T1 pelvic angle. CONCLUSIONS: LO significantly increases the risk of PJK development in ASD surgery. Multivariate analysis revealed that smaller postoperative PI-LL and greater UIVFA were significant risk factors for PJK. Surgeons should avoid undercorrection and overcorrection to prevent PJK development.

Multivariate Analysis among Marker Compounds, Environmental Factors, and Fruit Quality of Schisandra chinensis at Different Locations in South Korea.

This study aimed to investigate the correlation among the contents of marker compounds, growth characteristics, and environmental factors of Schisandra chinensis fruits across South Korea. The fruits were collected from 36 cultivation sites in 28 regions across the country. We investigated nine growth characteristics, twelve soil physicochemical properties, eight meteorological data, and three marker compounds in this study. We optimized and validated an optimized method for quantifying marker compounds using UPLC and performed correlation analysis among the contents of marker compounds, growth characteristics, and environmental factors. The UPLC-UV method for analyzing marker compounds was validated by measuring linearity, LOD, LOQ, precision, and accuracy. The marker compounds were negatively correlated with the fruit size and sugar contents, and growth characteristics were negatively correlated with some physicochemical properties of the soil. The results of this study can be used as basic data for the standard cultural practices and quality control of S. chinensis fruits.

Age Is Just a Number: Progress and Obstacles in the Discovery of New Candidate Drugs for Sarcopenia.

Sarcopenia is a disease characterized by the progressive loss of skeletal muscle mass and function that occurs with aging. The progression of sarcopenia is correlated with the onset of physical disability, the inability to live independently, and increased mortality. Due to global increases in lifespan and demographic aging in developed countries, sarcopenia has become a major socioeconomic burden. Clinical therapies for sarcopenia are based on physical therapy and nutritional support, although these may suffer from low adherence and variable outcomes. There are currently no clinically approved drugs for sarcopenia. Consequently, there is a large amount of pre-clinical research focusing on discovering new candidate drugs and novel targets. In this review, recent progress in this research will be discussed, along with the challenges that may preclude successful translational research in the clinic. The types of drugs examined include mitochondria-targeting compounds, anti-diabetes agents, small molecules that target non-coding RNAs, protein therapeutics, natural products, and repositioning candidates. In light of the large number of drugs and targets being reported, it can be envisioned that clinically approved pharmaceuticals to prevent the progression or even mitigate sarcopenia may be within reach.

Lifetime Violence, Lifetime Discrimination, and Microaggressions in the Lives of LGBT Midlife and Older Adults: Findings from Aging with Pride: National Health, Aging, and Sexuality/Gender Study.

Purpose: There is a dearth of research on violence and adverse experiences among LGBT midlife and older adults. The goal of this article was to present tailored measures and investigate the relationship between adverse experiences, health, and age. Methods: Based on the Health Equity Promotion Model, we examined lifetime violence, lifetime discrimination, and contemporary microaggressions among LGBT adults, aged 50 and older, utilizing data from Aging with Pride: National Health, Aging, and Sexuality/Gender Study. We examined subgroup differences, the interrelationships between adverse experiences, and the association with health, taking into consideration interactions by age. Results: Distinct aspects of these experiences were effectively captured by tailored measures. Important subgroup differences emerged with high levels of lifetime violence among sexually diverse adults, gay and bisexual men, and transgender adults. Experiences of violence remained a significant predictor across all three health outcomes, after controlling for both lifetime discrimination and microaggressions. Microaggressions had a significant contribution to comorbidity for those with a low level of lifetime violence. The interaction effects suggest that comorbidity increases as the number of lifetime violence experiences increases for those who are younger. As age increased, the lifetime violence effect on comorbidity diminished whereas the microaggressions effect became stronger. Conclusion: Greater attention to the sequelae of lifetime violence and other adverse events among midlife and older adults is needed as well as the development and testing of both downstream and upstream interventions to reduce and mitigate the impact of these experiences on the well-being of LGBT midlife and older adults.

Mathematical modeling for freshness/spoilage of chicken breast using chemometric analysis.

Chicken meat spoilage is a significant concern for food safety and quality, and this study aims to predict the spoilage point of chicken breast meat through various attributes and metabolites. Chicken meat was stored in anaerobic packaging at 4 °C for 13 days, and various meat quality attributes (pH, drip loss, color, volatile basic nitrogen [VBN], total aerobic bacteria [TAB], and metabolites) were examined. First, the spoiled point (VBN >20 mg/100 g and/or TAB >7 log CFU/g) of the chicken breast meat was determined. Using univariate and multivariate analyses, twenty-four candidate metabolites were identified. A receiver operating characteristic (ROC) analysis was used to validate the obtained binary logistic regression model using nine metabolites (proline, methionine, glutamate, threonine, acetate, uridine 5'-monophosphate, hypoxanthine, glycine, and glutamine). The results showed a high area under the ROC curve value (0.992). Thus, this study confirmed the predictability of spoilage points in chicken breast meat through these nine metabolites.

Aging with Pride: Innovations in Dementia Empowerment and Action (IDEA).

Background: Sexual and gender minority (SGM) older adults and their care partners, compared to the general population, face unique vulnerabilities that exacerbate living with dementia, including elevated disparities in comorbidities, social isolation, and structural inequities, such as discrimination and lack of access to supports. Methods: This paper describes the virtual adaptation process of the first-ever randomized controlled clinical trial intervention, Aging with Pride: Innovations in Dementia Empowerment and Action (IDEA), that was designed for SGM older adults living with dementia and their care partners and built upon the foundation of RDAD and NHAS. Results: The virtual adaptation of IDEA was guided by the goals of accessibility, quality, ease of delivery, sustainability, and cultural relevance. The implementation required the development of a HIPPA-compliant online virtual platform, coach and participant virtual training, and modification of necessary intervention elements and materials, as needed. Based on the preliminary findings, the participants and intervention coaches responded well to the virtual adaptation of IDEA. When comparing to in-person delivery, the virtual delivery decreased attrition among both intervention participants and coaches. Discussion: The virtual adaptation of the IDEA intervention resulted in preliminary, unexpected, yet potentially important benefits, including the ability to expand the reach of the intervention and decreased attrition. Virtual interventions are an emerging field for people living with dementia and their care partners and additional systematic research is needed to fully assess the benefits and limitations as well as to evaluate if specific subgroups are better served by differing delivery modalities.

The Growth Characteristics and the Active Compounds of Cudrania tricuspidata Fruits in Different Cultivation Environments in South Korea.

Cudrania tricuspidata is a traditional medicinal herb in East Asia. The compounds of plants vary depending on environmental factors, such as soil, temperature, drainage, and so on. However, few to no studies have been done on the correlation among environment, growth, and compounds in C. tricuspidata. Thus, we aimed to investigate their relationship. Samples of C. tricuspidata fruit and cultivation soil were collected from 28 cultivation sites in October 2021. Six growth characteristics, eleven soil physicochemical properties, seven meteorological data points, and three active compounds were investigated in this study. We developed and validated an optimized method for quantifying active compounds using UPLC and performed correlation analysis of the environment, growth characteristics, and active compounds. The UPLC-UV method for determining active compounds was validated by measuring the linearity, LOD, LOQ, precision, and accuracy using UPLC. The LOD and LOQ were 0.01-0.03 µg/mL and 0.04-0.09 µg/mL, respectively. The precision was acceptable with RSD% values less than 2%. The recoveries ranged from 97.25 to 104.98% with RSD values <2%, within the acceptable limits. The active compounds were negatively correlated with the size of the fruit, and the growth characteristics were negatively correlated with some environmental factors. The results of this study can be used as basic data for the standard cultural practices and quality control of C. tricuspidata fruits.

Combined effect of polycan, a ß-glucan from Aureobasidium pullulans, and regular resistance exercise on muscle strength, biomarkers, and fitness profiles in adults with relatively low skeletal muscle mass: a randomised controlled trial.

Background: Previous studies suggest that when combined with exercise, Aureobasidium pullulans-derived ß-glucan (APßG) may enhance muscle health and fitness profiles because of its ability to improve exercise-induced fatigue and preserve muscle mass. Objectives: The objective was to examine the combined effects and safety of APßG consumption and regular resistance exercise for 12 weeks on muscle strength, biomarkers, and fitness profiles in adults with relatively low skeletal muscle mass. Methods: We conducted a randomized, double-blinded, placebo-controlled trial in adults aged ≥50 years with <110% of the standard lean mass. Eighty participants randomly received either 1000 mg of APßG per day or a placebo for 12 weeks. All participants underwent resistance training three times per week. At baseline and 12 weeks after treatment, we assessed their knee extension/flexion strength, handgrip strength, body composition, and biomarkers. We also evaluated Euro-QoL-5D (EQ-5D) questionnaire, food intake, and physical activity at baseline and 12 weeks after treatment. Results: The combination of APßG and regular resistance exercise over 12 weeks resulted in a higher right knee flexion strength by 4.49 Nm (95% CI; -0.12-8.86 Nm; P = 0.044) than the placebo according to the intention-to-treat analysis. The combination intervention also led to a higher right knee flexion strength of 5.60 Nm (0.18-11.02 Nm; P = 0.043) and left knee flexion strength of 7.25 Nm (0.22-14.28 Nm; P = 0.043) than the placebo according to the per-protocol (PP) analysis. In addition, compared to the placebo, the combined intervention enhanced right-hand grip strength by 1.40 kg (0.19-2.61 kg; P = 0.024) and left-hand grip strength by 1.33 kg (0.01-2.65 kg; P = 0.048) according to PP analysis. The combined intervention also resulted in a more significant reduction in the time required for the 400 m walk test than the placebo. None of the participants experienced adverse events. Conclusion: APßG, in addition to regular resistance exercise, may enhance skeletal muscle strength and fitness in adults with relatively low skeletal muscle mass.

Design and development of the first randomized controlled trial of an intervention (IDEA) for sexual and gender minority older adults living with dementia and care partners.

BACKGROUND: Heightened risks of cognitive impairment, disability, and barriers to care among sexual and gender minority (SGM) older adults are well documented. To date, culturally responsive evidence-based dementia interventions for this population do not exist. OBJECTIVE: This study describes the design of the first randomized controlled trial (RCT) testing a culturally responsive cognitive behavioral and empowerment intervention, Innovations in Dementia Empowerment and Action (IDEA), developed to address the unique needs of SGM older adults living with dementia and care partners. METHODS: IDEA is a culturally enhanced version of Reducing Disability in Alzheimer's Disease (RDAD), an efficacious, non-pharmaceutical intervention for people with dementia and care partners. We utilized a staggered multiple baseline design with the goal to enroll 150 dyads randomized into two arms of 75 dyads each, enhanced IDEA and standard RDAD. RESULTS: IDEA was adapted using findings from the longitudinal National Health, Aging, and Sexuality/Gender study, which identified modifiable factors for SGM older adults, including SGM-specific discrimination and stigma, health behaviors, and support networks. The adapted intervention employed the original RDAD strategies and enhanced them with culturally responsive empowerment practices designed to cultivate engagement, efficacy, and support mobilization. Outcomes include adherence to physical activity, reduction in perceived stress and stigma, and increased physical functioning, efficacy, social support, engagement, and resource use. CONCLUSION: IDEA addresses contemporary issues for underserved populations living with dementia and their care partners. Our findings will have important implications for marginalized communities by integrating and evaluating the importance of cultural responsiveness in dementia and caregiving interventions.

Sexual Minority Disparities in Subjective Cognitive Impairment: Do They Persist After Accounting for Psychological Distress?

Objectives: Sexual minority older adults are a health disparate group with disproportionate rates of subjective cognitive impairment (SCI) and psychological distress. This study estimated risks of SCI by sexual orientation and gender, accounting for variations in psychological distress. Methods: We aggregated National Health Interview Survey data (2013-2018) of adults aged 45 and older and implemented logistic regressions of SCI indicators on sexual orientation and psychological distress, adjusting for covariates. Results: Sexual minority adults showed higher likelihoods of SCI in terms of status, severity, frequency, extent, and activity limitations than heterosexuals, even after controlling for psychological distress. SCI risk was significantly higher among sexual minority vs. heterosexual women, with no significant difference among men. Conclusions: Public health initiatives should address this health disparity in SCI and support informal care networks for sexual minorities. Future research is needed that further investigates SCI at-risk groups, with attention to sexual minority women.