Gerontology Research Articles

The Fourth Annual Symposium of the Midwest Aging Consortium.

The Midwest Aging Consortium (MAC) has emerged as a critical collaborative initiative aimed at advancing our understanding of aging and developing strategies to combat the rising prevalence of age-related diseases. Founded in 2019, MAC brings together researchers from various disciplines and institutions across the Midwestern United States to foster interdisciplinary geroscience research. This report summarizes the highlights of the Fourth Annual Symposium of MAC, which was held at Iowa State University in May 2023. The symposium featured presentations on a wide array of topics, including studies on slow-aging animals, cellular senescence and senotherapeutics, the role of the immune system in aging, metabolic changes in aging, neuronal health in aging, and biomarkers for measuring the aging process. Speakers shared findings from studies involving a variety of animals, ranging from commonly used species such as mice, rats, worms, yeast, and fruit flies, to less-common ones like naked mole-rats, painted turtles, and rotifers. MAC continues to emphasize the importance of supporting emerging researchers and fostering a collaborative environment, positioning itself as a leader in aging research. This symposium not only showcased the current state of aging biology research but also highlighted the consortium's role in training the next generation of scientists dedicated to improving the healthspan and well-being of the aging population.

Establishing Research Priorities in Geriatric Nephrology: A Delphi Study of Clinicians and Researchers

Despite substantial growth in the population of older adults with kidney disease, there remains a lack of evidence to guide clinical care for this group. The Kidney Disease and Aging Research Collaborative (KDARC) conducted a Delphi study to build consensus on research priorities for clinical geriatric nephrology. Asynchronous modified Delphi study. Clinicians and researchers in the US and Canada with clinical experience and/or research expertise in geriatric nephrology. Research priorities in geriatric nephrology. In the first Delphi round, participants submitted free-text descriptions of research priorities considered important for improving the clinical care of older adults with kidney disease. Delphi moderators used inductive content analysis to group concepts into categories. In the second and third rounds, participants iteratively reviewed topics, selected their top 5 priorities, and offered comments used to revise categories. Among 121 who were invited, 57 participants (47%) completed the first Delphi round and 48 (84% of enrolled participants) completed all rounds. After 3 rounds, the 5 priorities with the highest proportion of agreement were: 1) Communication and Decision-Making about Treatment Options for Older Adults with Kidney Failure (69% agreement), 2) Quality of Life, Symptom Management, and Palliative Care (67%), 3) Frailty and Physical Function (54%), 4) Tailoring Therapies for Kidney Disease to Specific Needs of Older Adults (42%), and 5) Caregiver and Social Support (35%). Health equity and person-centricity were identified as cross-cutting features that informed all topics. Relatively low response rate and limited participation by private practitioners and older clinicians and researchers. Experts in geriatric nephrology identified clinical research priorities with the greatest potential to improve care for older adults with kidney disease. These findings provide a roadmap for the geriatric nephrology community to harmonize and maximize the impact of research efforts.

Predictive ability of the Cancer and Aging Research Group chemotherapy toxicity calculator in hematologic malignancy

IntroductionChemotherapy toxicity tools are rarely studied in patients with hematologic malignancy (HM). The primary aim of this pilot study was to determine the predictive ability of the Cancer and Aging Research Group (CARG) chemo-toxicity calculator in estimating grade 3–5 toxicity in patients with HM. Materials and MethodsPatients 60 years and older with HM were prospectively evaluated using the CARG chemo-toxicity calculator. Discrimination and calibration were checked by applying the published model in our data. Additionally, a full geriatric assessment (GA), the Short Physical Performance Battery (SPPB), and health related quality of life (HRQoL) were captured longitudinally at the start of treatment and at end of study. Secondary aims explored the association of GA metrics with chemo-related toxicities and survival. ResultsOne hundred forty-five patients were approached, 118 patients consented, and 97 patients were evaluable. Most patients were newly diagnosed (n = 91). The median CARG score was 9 (range 4–18). The CARG score was not validated in our cohort of older patients with HM, with area under the receiver operation characteristic curve being 0.53 (95 % CI: 0.41–0.65). In multivariable analysis, after controlling for disease type, risk factors associated with grade 3–5 toxicity included living alone (hazard ratio [HR] 4.24, 95 %CI: 2.07–8.68, p < 0.001), increase in body mass index (HR 1.06, 95 %CI: 1.01–1.12, p = 0.03) and a higher social activities score (HR 1.27, 95 %CI: 1.06–1.51, p = 0.01). In multivariable analysis of overall survival, the only prognostic factor was an objective marker of physical function (SPPB score HR = 0.85, 95 %CI:0.78–0.93, p < 0.001). DiscussionThe CARG chemo-toxicity calculator was not predictive of grade 3–5 toxicity in patients with hematologic malignancy. The SPPB was associated with overall survival in multivariable analysis, suggesting future use as an objective biomarker in HM. We also report a comprehensive trajectory of function, QoL, psychosocial well-being, and cognition among older adults with HM. The predictive accuracy of the CARG chemo-toxicity calculator may be affected by the diverse range of HM treatment options that are not traditional chemotherapy.

The National Institute on Aging's Resource Centers for Minority Aging Research: Development, Evolution, and Impact.

Spanning nearly 30 of the 50 years in which the National Institute on Aging (NIA) has existed, the Resource Centers for Minority Aging Research (RCMAR) program represents one of the most successful initiatives for advancing minority aging research and diversifying the scientific workforce within the Institute and across the National Institutes of Health. This article celebrates the genesis of the RCMAR program, beginning with the need to enhance this work, ranging from theories underlying the then-nascent field of health disparities research to study design, measurement, and analytic procedures. It describes the companion focus on preparing, expanding, and diversifying generations of future scholars/scientists to carry forward these advances. RCMAR's emphasis on promoting a comprehensive approach to research career development and building supportive learning communities heralded a more holistic approach to training than was previously the case. The discussion describes the evolution of the structure and emphases of the RCMAR program as it has responded to the frequently changing political, funding, and research environments. The article concludes by highlighting the major successes of this initiative, the challenges it faces, and opportunities afforded future growth as individual centers, the program at large, and NIA as a whole continue to innovate as they collectively address the original goals which remain relevant today and in the near future.

Chronic Musculoskeletal Pain is Associated With Depressive Symptoms in Community-Dwelling Older Adults Independent of Physical Activity. Experimental Aging Research

ABSTRACT Background Prevalence of chronic musculoskeletal pain and depressive symptoms in adults is high; however, whether there is an association between these conditions in older adults is unknown. Objective The aim of this study was to investigate the association of depressive symptoms with chronic musculoskeletal pain, and specifically with chronic LBP and knee osteoarthritis (OA), in community-dwelling older adults. In addition, we explored whether physical activity can mitigate these associations. Methods A cross-sectional study design. A cross-sectional study design. Participants recruited were older adults (age ≥60 years) living in the community. Chronic musculoskeletal pain was assessed by specific questions regarding the presence of chronic LBP and knee OA. Depressive symptoms were assessed with the Center for Epidemiologic Studies Depression Scale. Multivariable regression model adjusted for potential confounders (i.e., age, sex, economic status, body composition, and physical activity) was used to investigate the association between chronic musculoskeletal pain and depressive symptoms. Separate analyses were also conducted for older adults with LBP and with knee OA. Results A total of 509 (69% women) older adults were recruited. The regression analysis showed that musculoskeletal pain was associated with higher depressive symptoms ( β = 2.52, 95% CI: 0.50 to 4.54; p-value < .05) compared with older adults without chronic musculoskeletal pain. Similarly, in the fully adjusted model, which included physical activity, LBP was associated with higher depressive symptoms ( β = 2.80, 95% CI: 0.82 to 4.79; p-value < .01). The association between knee OA and depressive symptoms was not statistically significant after adjusting for physical activity ( β = 2.00, 95% CI: −0.13 to 4.13; p-value = .06). Conclusion Older adults with chronic musculoskeletal pain have higher depressive symptoms scores, when compared to those without musculoskeletal pain. Physical activity does not seem to influence this association.

Multi-stakeholder aged care research networks: A scoping review.

An ageing population worldwide has highlighted the need for improved care in long term aged care homes. In Australia, such homes are called Residential Aged Care homes, and reform is underway to improve the quality and safety of aged care. A key enabler of quality improvement is increasing evidence-based practice through creating a system to support research translation. Collaborative multi-stakeholder research networks offer a potential solution by bringing together stakeholders to identify evidence-to-practice gaps, co-design research and translate knowledge into practice. The aim of this scoping review was to understand the current evidence on the creation and maintenance of multi-stakeholder aged care research networks internationally, reported facilitators and barriers, and outcomes. An academic literature search in five databases to identify existing multi-stakeholder aged care research networks. A grey literature search was conducted using Google, Google Scholar, grey literature databases and a manual search of targeted websites. 10 papers and 19 web-based resources were identified, reporting on six multi-stakeholder research networks internationally. Enabling factors of successful networks included flexibility in structure, good governance, leveraging pre-existing research relationships, consistent and open communication, staff with dual roles in research and practice, and a focus on building long term partnerships independent of research projects. Collaborative multi-stakeholder research networks offer promise for improving research translation in aged care. Advancing the development of impactful multi-stakeholder aged care research networks requires internationally agreed terminology for network models, clear reporting and evaluation guidelines and dedicated infrastructure resources.

10.I. Scientific session: A National E-Infrastructure for Aging Research to Improve Public Health

Abstract Global life expectancy gains over the last half-century are remarkable. Yet the resulting demographic shift towards an older population poses substantial public health challenges, particularly in healthcare. To address these challenges, a profound and scientifically-based understanding of older adults’ health and care requirements is needed. Recognizing the need for a better understanding of the aging process and public health challenges, the National E-infrastructure for Aging Research (NEAR) was founded in 2018. NEAR seeks to promote and support aging research by facilitating longitudinal population-based data usage from 15 well-known Swedish cohort studies on aging and health. It is based on a collaboration between eight Swedish universities and includes 15 databases with individual assessments. NEAR comprises a broad range of biomedical, clinical, social, and psychological health data from more than 90,000 adults who are 50+ years old. These individuals have been followed between 12 and 52 years. The objective of this workshop is to give an overview of the NEAR infrastructure, present results from three ongoing NEAR projects, and their implications for public health: 1) Temporal trends in dementia incidence in Sweden; 2) Personality and biomarkers of neurodegeneration and Alzheimer’s disease in Swedish older adults, and 3) Characterizing risk profiles and transitions across living and care settings in Sweden. Infrastructures such as NEAR offer high-quality epidemiological data for achieving broad, interdisciplinary research goals that single databases often cannot provide. Moreover, the value added to these kinds of data includes enhanced sample sizes, variations, representativeness, and generalizability. In turn, this can address an aging society’s public and clinical health demands. Eventually, this could lead to sustainable intervention strategies for improving older persons’ health in the coming decades. Key messages • Discover new avenues in public health aging research: Gain insights into cutting-edge aging research opportunities in Sweden, exploring key NEAR projects. • Recognize the value of national infrastructures using high-quality epidemiological data in fostering collaborative and nationally representative public health research.

Wild capuchin monkeys as a model system for investigating the social and ecological determinants of ageing.

Studying biological ageing in animal models can circumvent some of the confounds exhibited by studies of human ageing. Ageing research in non-human primates has provided invaluable insights into human lifespan and healthspan. Yet data on patterns of ageing from wild primates remain relatively scarce, centred around a few populations of catarrhine species. Here, we introduce the white-faced capuchin, a long-lived platyrrhine primate, as a promising new model system for ageing research. Like humans, capuchins are highly social, omnivorous generalists, whose healthspan and lifespan relative to body size exceed that of other non-human primate model species. We review recent insights from capuchin ageing biology and outline our expanding, integrative research programme that combines metrics of the social and physical environments with physical, physiological and molecular hallmarks of ageing across the natural life courses of multiple longitudinally tracked individuals. By increasing the taxonomic breadth of well-studied primate ageing models, we generate new insights, increase the comparative value of existing datasets to geroscience and work towards the collective goal of developing accurate, non-invasive and reliable biomarkers with high potential for standardization across field sites and species, enhancing the translatability of primate studies.This article is part of the discussion meeting issue 'Understanding age and society using natural populations'.

Rehabilitation delivery models to foster healthy ageing - a scoping review

Abstract Background Rehabilitation is crucial for healthy ageing among older adults, who face heightened risks of non-communicable diseases, infections, injuries, and mental health issues. Yet, understanding tailored rehabilitation for this demographic remains limited. To fill this gap, we conducted a scoping review to identify rehabilitation delivery models targeting older adults’ functioning and healthy ageing. Methods We systematically searched Medline and Embase (January 2015 to May 2022) for English-language studies on rehabilitation approaches for older adults. Three authors independently screened records for eligibility and synthesized findings through quantitative and qualitative analysis. Results Among 6,933 records, we assessed 585 articles, identifying 283 studies with 69,257 participants. Six main rehabilitation delivery models emerged, with outpatient (24%) and telerehabilitation (22%) being predominant. Multidisciplinary teams (31.5%) often followed integrated care principles (30.4%). However, most studies adopted a disease-centric approach (59.0%), neglecting prevalent issues like pain, sensory impairments, incontinence, and sexual dysfunctions. Therapeutic exercises (54.1%) and self-management education (40.1%) were common interventions. Conclusions Our scoping review outlines diverse rehabilitation delivery models for older adults, highlighting gaps in addressing prevalent issues and emphasizing evidence-based strategies to promote healthy ageing. It underscores the need for systematic functional assessment and expansion of rehabilitation programs to cover prevalent health concerns. While limitations include reliance on published research and not assessing model effectiveness, this review lays groundwork for future research and innovation in rehabilitation and healthy ageing. Key messages • The scoping review identifies six rehabilitation delivery models for older adults. • The scoping review advocates for evidence-based strategies for enhancing healthy ageing through rehabilitation.

Characterizing Risk Profiles and Transitions across Living and Care Settings in Sweden

Abstract Background Older adults are at increased risk of frequent healthcare transitions between health care (hospitals) and social care providers (formal care and institutions). Therefore, our objective was to quantify and characterize the potential risk profiles of multiple transitions between living and care settings for older adults. Methods Data were obtained from the National E-Infrastructure for Aging Research (NEAR), including the Swedish National Study on Aging and Care (SNAC) and the National Patient Register, to evaluate living and care transitions of over 7,000 individuals aged 60+, across homes, formal care, nursing homes, hospitals, and post-acute facilities. A multi-state model was used to represent moving likelihood. Results Over 15 years, the average length of stay was two years at home, one year in home care, one year in institutionalization, eight days in the hospital, and 17 days in post-acute facilities. Older age and being a woman increased the chance of receiving home care after hospital discharge (Hazard Ratio [HR] range 1.35-4.38, 1.06-1.08), whereas multimorbidity and slow walking speed were associated with an 11%-50% increased hazard of hospitalization and home care. Generally, cognitive impairment increased the hazard of institutionalization (HR range 1.99-2.15), and disability was associated with a higher hazard of nursing home placement (HR range 2.57-3.07). Conclusions These findings underscore that care transition patterns are associated with different sociodemographic, clinical, and functional characteristics. This highlights the complex and dynamic interplay between these characteristics and social and health care use. Key messages • The study emphasizes that hospitalization is a major driver of transitions between living and care settings for older adults. • Age, gender, multimorbidity, walking speed, cognitive impairment, and disability all play a role in shaping older adults’ transition patterns between different care settings.

Loneliness in the elderly and disease development in European welfare regions: a longitudinal study

Abstract Healthy ageing research has brought a recent focus on the association between loneliness and disease. Regional differences on loneliness prevalence in the elderly across welfare systems, and its association with varying mortality rates, have recently been demonstrated. We hypothesise loneliness affects disease development in the elderly, impacted by socio-economic policies that characterise welfare systems in the EU. We use logistic regression models to assess the association between loneliness (R-UCLA scale) and onset of new chronic disease and disease events, in a European sample of people aged &amp;gt;50 (n = 40840), using the SHARE database, during 2013 - 22 (waves 5 to 9). Preliminary results from two subsequent waves (2015-17, n = 11870) show a statistically significant effect of persistent loneliness on disease onset (increase in new disease events), when adjusting for sex, age, previous illness, and other socio-economic covariates (AOR 1.22, 95%CI 1.08-1.39, p &amp;lt; 0.01). Notably, comparing to the Scandinavian welfare group, only Eastern European countries show higher odds of disease development (AOR 1.52, 95%CI 1.32-1.77, p &amp;lt; 0.001), while also having the highest incidence of new disease in our sample. Age and welfare group show the strongest association with the outcome of interest, followed by change in occupation (no longer employed). Our current analyses span a larger period (2013-22), and we are exploring additional mediators of this effect, such as behavioural and social activity-related variables. Additional analyses to control for unrelated disease (low biological plausibility) and a social isolation index, described in the literature, are added. Furthermore, we analyse the longitudinal association between loneliness and healthcare use, such as polypharmacy and consults. With this study, we aim to contribute decision-making in health in all policies, by increasing integration between health and social sectors, while considering different regional and welfare policies. Key messages • Understanding socio-economic and welfare mechanisms which impact health in the elderly allows for better cross-sector policy design, promoting healthier ageing. • Persistent feelings of loneliness affect disease development in the elderly, which appear to be worsened in some EU welfare groups, independently of socio-economic status.

Temporal Trends in Dementia Incidence in Sweden: Insights from NEAR Data

Abstract Background This study investigates the temporal trends of dementia incidence in Sweden over a span of 35 years, drawing on data from the National E-Infrastructure for Aging Research (NEAR). Methods Our comprehensive analysis encompassed over 10,000 participants aged 50 and above. We estimated dementia incidence rates across the study period, considering birth cohort, age, and sex while controlling for potential confounders. Additionally. We explored potential modifiers influencing the estimated trend of dementia incidence. Results The analysis reveals a notable decline in dementia incidence rates, particularly among individuals born in more recently. Octogenarians born in the 1920-1930 cohort had a 74% lower dementia incidence rate compared to their counterparts born before 1900. Similarly, nonagenarians born in the 1910-1920 cohort experienced a 45% lower incidence rate. We further investigate determinants influencing this declining trend, shedding light on various factors shaping the observed patterns. Conclusions The incidence rate of dementia in Sweden has shown a consistent decline over the past 35 years, with a notable birth cohort effect indicating lower rates among individuals born more recently. This finding suggests evolving factors in lifestyle, healthcare, or environmental conditions contributing to improved cognitive health outcomes. Key Messages • These findings underscore the importance of proactive public health measures aimed at sustaining and enhancing cognitive health outcomes among aging populations. • Understanding the temporal dynamics and underlying factors driving these trends can inform strategies for promoting healthy aging and improving the quality of life for older adults.

Interrupted Learning across the Lifespan

Continued learning opportunities are important for adaptation across the lifespan. Interrupted learning (e.g., “summer slide”) is a known, critical issue for childhood education. This perspective piece proposes that adulthood could be a period of prolonged interrupted learning with reduced learning opportunities, despite the known importance of lifelong learning. This idea goes beyond calls for healthy older adults to lead an active life to maintain cognitive abilities and to maintain basic functional skills by highlighting important lifespan circumstances that may hinder or facilitate adaptation in new and changing environments. We explore how research on interrupted learning in childhood could be applied to later adulthood and how changes in learning are viewed differently for children and adults. In addition, research on increasing abilities during childhood generally focuses on specific skills (e.g., reading, math), whereas cognitive aging research focuses on more general cognitive abilities related to attention and memory. Finally, given that interrupted learning occurs unevenly across different ages, abilities, and resources, more can be investigated in terms of who interrupted learning affects across the lifespan, and the neural underpinnings of interrupted learning. Acknowledging and addressing interrupted learning across the lifespan may promote long-term thriving and avoid preventable deficits and decline.

Enhancing the diversity and productivity of scientists in aging research: contributions of the Resource Centers for Minority Aging Research, 2018–2023

ABSTRACT The Resource Centers for Minority Aging Research (RCMAR) is a flagship education, training, and development program of the National Institute of Health (NIH), and the National Institute on Aging (NIA) focused on increasing the number and diversity of researchers in aging. We sought to assess the program’s contributions to geriatric and gerontology education by examining the scientific productivity of 294 RCMAR scientists who received pilot funding from the program during the last complete grant cycle, 2018 to 2023. Across the 18 funded sites, the scientists obtained 53 NIH grants and 29 NIA-specific grants. They published 281 manuscripts, of which 141 were noted as direct outcomes of the pilot funding and support received through the program. Findings indicated that the RCMAR program in its last cycle succeeded in promoting education and scientific career development of researchers from diverse backgrounds and researchers focused on health disparities to conduct transdisciplinary social and behavioral aging research.

Collagen Type VII (COL7A1) as a Longevity Mediator in Caenorhabditis elegans: Anti-Aging Effects on Healthspan Extension and Skin Collagen Synthesis

Longevity genes and senescence-related signaling proteins are crucial targets in aging research, which aims to enhance the healthy period and quality of life. Identifying these target proteins remains challenging because of the need for precise categorization and validation methods. Our multifaceted approach combined bioinformatics with transcriptomic data to identify collagen as a key element associated with the lifespan of the model organism, Caenorhabditis elegans. By analyzing transcriptomic data from long-lived mutants that involved mechanisms such as antioxidation, dietary restriction, and genetic background, we identified collagen as a common longevity-associated gene. We validated these findings by confirming that collagen peptides positively affect lifespan, thereby strengthening the validity of the target. Further verification through healthspan factors in C. elegans and functional assays in skin fibroblasts provided additional evidence of the role of collagen in organismal aging. Specifically, our study revealed that collagen type VII is a significant target protein for mitigating age-related decline. By validating these findings across different aging models and cell-based studies, we present compelling evidence for the anti-aging effects of collagen type VII, highlighting its potential as a target for promoting healthy aging. This study proposes that collagen not only serves as an indicative marker of organismal longevity across various senescence-related signaling pathways, but also offers a mechanistic understanding of skin degeneration. Consequently, collagen is an effective target for interventions aimed at mitigating skin aging. This study underscores the potential of collagen type VII (bonding collagen T7) as a therapeutic target for enhancing skin health and overall longevity.

Olfactory and gustatory chemical sensor systems in the African turquoise killifish: Insights from morphology

Smell and taste are extensively studied in fish species as essential for finding food and selecting mates while avoiding toxic substances and predators. Depending on the evolutionary position and adaptation, a discrete variation in the morphology of these sense organs has been reported in numerous teleost species. Here, for the first time, we approach the phenotypic characterization of the olfactory epithelium and taste buds in the African turquoise killifish (Nothobranchius furzeri), a model organism known for its short lifespan and use in ageing research. Our observations indicate that the olfactory epithelium of N. furzeri is organized as a simple patch, lacking the complex folding into a rosette, with an average size of approximately 600 µm in length, 300 µm in width, and 70 µm in thickness. Three main cytotypes, including olfactory receptor neurons (CalbindinD28K), supporting cells (β-tubulin IV), and basal cells (Ki67), were identified across the epithelium. Further, we determined the taste buds’ distribution and quantification between anterior (skin, lips, oral cavity) and posterior (gills, pharynx, oesophagus) systems. We identified the key cytotypes by using immunohistochemical markers, i.e. CalbindinD28K, doublecortin, and neuropeptide Y (NPY) for gustatory receptor cells, glial fibrillary acidic protein (GFAP) for supporting cells, and Ki67, a marker of cellular proliferation for basal cells. Altogether, these results indicate that N. furzeri is a microsmatic species with unique taste and olfactory features and possesses a well-developed posterior taste system compared to the anterior. This study provides fundamental insights into the chemosensory biology of N. furzeri, facilitating future investigations into nutrient-sensing mechanisms and their roles in development, survival, and ageing.

Women's expectations for system support for a healthy menopausal transition: A pilot study

BackgroundThis pilot study contributes to the knowledge on healthy menopause by adopting a person-centric, lifelong approach to support a healthy menopausal transition. It focuses on women's expectations of system support for this transition. MethodTwenty-two online in-depth interviews were conducted with women of various ages, experiences, and backgrounds in the United Kingdom, ensuring representation across the menopausal transition journey – before, during and after menopause. The interviews explored perceptions and expectations of healthy menopause and the required support. User journey and systems frameworks guided data collection and analysis. The pilot aimed to verify the feasibility of the developed study approach and protocol. ResultsA healthy menopausal transition is seen as preserving essential capacities to maintain normal daily activities despite bodily changes, a crucial aspect of ageing. Participants outlined a journey of awareness, contemplation of lifestyle adjustments, experimentation with new behaviours, and habit formation. These findings underscore the importance of fostering awareness and support for menopausal transition early in life. Participants also stressed the impact of the broader environment across the ageing journey, including education, research, health services, workplace dynamics, built environment, food industry, technology and innovation, media, advertising, and social networks. ConclusionsThis work highlights person-centric perceptions of healthy menopause, complementing existing biology-centred perspectives. By introducing a co-creation approach at the system level, it offers opportunities to define holistic support for the menopausal transition. The findings informed a knowledge exchange and ideation workshop with forty relevant system stakeholders to advance solution co-creation.

Kidney Disease Aging Research Collaborative (KDARC): Addressing barriers in geriatric nephrology research.

Kidney Disease Aging Research Collaborative (KDARC): Addressing barriers in geriatric nephrology research.

Comprehensive gut microbiota composition and microbial interactions among the three age groups.

There is a growing interest in studying the microbiota associated with aging by integrating multiple longevity researches while minimizing the influence of confounding factors. Here, we reprocessed metagenomic sequencing data from four different aging research studies and evaluated potential confounding factors in order to minimize the batch effect. Subsequently, we detected the diversity and abundance of the gut microbiome in three different age cohorts. Out of 1053 different bacteria species, only four showed substantial depletion across different age groups: Ligilactobacillus ruminis, Turicibacter sp. H121, Blautia massiliensis, and Anaerostipes hadrus. Archaea accumulated more in young individuals compared to elderly and centenarians. Candida albicans was more prevalent in centenarians, but Nakaseomyces glabratus (also known as Candida glabrata) was more common in elderly adults. Shuimuvirus IME207 showed a significant increase in centenarians compared to both control groups. In addition, we utilized a Fisher's exact test to investigate topological properties of differentially abundant microbiota in the co-occurrence network of each age group. Microbial signatures specific to different age stages were identified based on the condition: the reads showing differential abundance were higher compared to the other age groups. Lastly, we selected Methanosarcina sp. Kolksee for the Y group, Prevotella copri for the E group and Shuimuvirus IME207 for the C group as representatives of age-related characteristics to study how their interactions change during the aging process. Our results provide crucial insights into the gut microbiome's ecological dynamics in relation to the aging process.

Longevity biotechnology: bridging AI, biomarkers, geroscience and clinical applications for healthy longevity.

The recent unprecedented progress in ageing research and drug discovery brings together fundamental research and clinical applications to advance the goal of promoting healthy longevity in the human population. We, from the gathering at the Aging Research and Drug Discovery Meeting in 2023, summarised the latest developments in healthspan biotechnology, with a particular emphasis on artificial intelligence (AI), biomarkers and clocks, geroscience, and clinical trials and interventions for healthy longevity. Moreover, we provide an overview of academic research and the biotech industry focused on targeting ageing as the root of age-related diseases to combat multimorbidity and extend healthspan. We propose that the integration of generative AI, cutting-edge biological technology, and longevity medicine is essential for extending the productive and healthy human lifespan.