Geriatrics Commons^™

Correlation Between Drug-Related Problems And The Treatment Cost For Geriatric Ischemic Stroke Patients In Tulungagung, Dhanang Prawira Nugraha, Martanty Aditya

Jurnal Ekonomi Kesehatan Indonesia

Ischemic stroke was one of the diseases that frequently occurred in geriatric patients, while hemorrhagic stroke had a higher prevalence. Geriatric patients who experienced a stroke were not exempt from drug-related problems (DRP) due to the complexity of treatment and comorbid factors they encountered. This study aimed to determine the correlation between DRP and the cost of care for ischemic stroke patients, particularly in the geriatric population. The study design was cross-sectional, with data collected retrospectively, and the sample comprised 53 geriatric stroke patients who met the inclusion and exclusion criteria. DRP was assessed using the PCNE 6.2 criteria, and …

Senior Health (Age 65+) In The Mountain West, 2024, Taylor Volk, Kristian Thymianos, Caitlin J. Saladino, William E. Brown Jr.

Health

This fact sheet presents senior health care statistics for the Mountain West states of Arizona, Colorado, Nevada, New Mexico, and Utah. The “2024 Senior Report – State Summaries,” study from America’s Health Rankings, United Foundation provided the data for all fifty states and Washington, D.C.

Interprofessional Education: A Geriatric Immersion Experiential, Emily J. Balog, Jennifer Degennaro, Lisa Bodenheimer, Stephanie Berdugo-Hernandez, Isabella Berdugo-Hernandez, Matthew Mclaughlin, Kevin Overbeck, Elyse Perweiler

Rowan-Virtua SOM Faculty Teaching & Learning Seminar

The Geriatric Interprofessional Education Immersion (GIPEI) course was developed using a mixed methods design guided by the Knowledge-to-Action (KTA) Framework and embedded data-driven decision-making (DDDM). The eight-week, tri-weekly immersion integrates Experiential and Adult Learning Theories, the 4Ms Framework, IPEC competencies, and TeamSTEPPS to foster age-friendly clinical decision-making. Quantitative and qualitative data, including pre/post-tests, rubrics, observations, and student interviews, inform iterative improvement. The somato-psycho-socio-semiotic model of health further anchors student reflection and care planning. Findings aim to demonstrate improved learner ability to recognize and apply age-friendly care, while supporting evidence-informed curriculum refinement. The course is funded by the geriatric workforce enhancement …

Assessing Older Adult Behavioral Health Diagnoses In Oregon By Geographical Area, Physical Disability Status, And Age., N F. Parsons, Allyson Stodola, Ellis Hews, Nirmala Dhar, Sheryl Elliott, Sarah Dys, Walter D. Dawson

Institute on Aging Publications

This repeated cross-sectional study aims to assess potential differences among behavioral health (BH) diagnoses for older adults. Differences in services across urban versus rural/remote areas may contribute to deeply entrenched barriers to improved BH for this population.

Managing Hypercholesterolemia In Adults Older Than 75 Years Without A History Of Atherosclerotic Cardiovascular Disease: An Expert Clinical Consensus From The National Lipid Association And The American Geriatrics Society, Vera Bittner, Sunny A Linnebur, Dave L Dixon, Daniel E Forman, Ariel R Green, Terry A Jacobson, Ariela R Orkaby, Joseph J Saseen, Salim S Virani

Faculty, Staff and Students Publications

The risk of atherosclerotic cardiovascular disease increases with advancing age. Elevated LDL-cholesterol and non-HDL-cholesterol levels remain predictive of incident atherosclerotic cardiovascular events among individuals older than 75 years. Risk prediction among older individuals is less certain because most current risk calculators lack specificity in those older than 75 years and do not adjust for co-morbidities, functional status, frailty, and cognition which significantly impact prognosis in this age group. Data on the benefits and risks of lowering LDL-cholesterol with statins in older patients without atherosclerotic cardiovascular disease are also limited since most primary prevention trials have included mostly younger patients. Available …

Association Of The G8 Screening Tool With Neoadjuvant Chemotherapy Outcomes In Older Adults With Urothelial Carcinoma, Kendall Ozorowski, Umma Fatema, Amman Bhasin, Julia Palecki, Michael Zimmerman, Kristine Swartz, Kevin Zarrabi, Kuang-Yi Wen

Health Equity and Quality Improvement (HEQI) Summit

Intro

• Urothelial carcinoma (UC) predominately affects older adults who often face increased adverse outcomes and reduced survival.
• Standard of care treatment entails neoadjuvant cisplatin- based chemotherapy followed by cystectomy with urinary diversion.
• The American Society of Clinical Oncology recommends older patients with cancer undergo Comprehensive Geriatric Assessment (CGA) prior to cancer treatment.
• The G8, a geriatric assessment tool, is a validated screening tool for identifying frailty requiring CG

Incorporation Of The 4ms, With A Focus On Mentation, Into The H&P For Older Adults Hospitalized With A Hip Fracture And Its Effect On Delirium Documentation, Emily Custer, Do, Kristine Swartz, Md, Lily Ackermann, Md

Health Equity and Quality Improvement (HEQI) Summit

Background

Delirium affects 15% to over 50% of patients with hip fractures during their hospital stay (1) and is associated with increased mortality, increased length of hospital stay, poorer functional outcomes, and higher risk of nursing home placement (1,2). However, at Thomas Jefferson University Hospital, the prevalence of documented delirium post-hip fracture is only 5.22%, suggesting potential under recognition. Additionally, at the end of 2025, a new CMS inpatient quality metric will require public reporting on a hospital's capability to provide age-appropriate care for older adults, which can be done by utilizing the 4M framework of age-friendly health care. The …

Deprescribing Type 2 Diabetes Mellitus Medications In Older Adults In An Urban Primary Care Setting, Katelyn Koons, Md, Eugenie Hughes, Md, Eunice Choe, Md, Julio Garcia, Md, Munifa King, Md, Emily Lavell, Md, Michael Danielewicz, Md

Health Equity and Quality Improvement (HEQI) Summit

Background

• Adults 65+ take on average five medications daily
• Polypharmacy increases risks of drug interactions and adverse events
• About 29% adults 65+ in developed countries have type 2 diabetes mellitus (T2DM) and the number of older adults living with these conditions is expected to increase rapidly in the coming decades
• Over-treatment of DM in older adults is common and increases risks of serios adverse outcomes including hypoglycemia
• Older adults with T2DM should have higher A1c goal consistent with ADA guidelines: [See Table on Poster]

Dnmt3a Regulates Murine Megakaryocyte-Biased Hematopoietic Stem Cell Fate Decisions, Sarah M Waldvogel, Virginia Camacho, Dandan Fan, Anna G Guzman, Alejandra Garcia-Martell, Elmira Khabusheva, Jacey Rodriguez Pridgen, Josephine De La Fuente, Rachel Rau, Ashlyn G Laidman, Maria N Barrachina, Estelle Carminita, Justin A Courson, Michael R Williamson, Joanne I Hsu, Chun-Wei Chen, Jaime Reyes, Subhashree Pradhan, Rolando E Rumbaut, Alan R Burns, Benjamin Deneen, Jianzhong Su, Kellie R Machlus, Margaret A Goodell

Center on Aging Staff Publications

Hematopoietic stem cells (HSCs) are defined by their capacity to regenerate all main components of peripheral blood, but individual HSCs exhibit a range of preferences for generating downstream cell types. Their propensities are thought to be epigenetically encoded, but few differential regulatory mechanisms have been identified. In this work, we explored the role of DNA methyltransferase 3A (DNMT3A) in the megakaryocyte-biased HSC population, which is thought to reside at the top of the hematopoietic hierarchy. We demonstrate that heterozygous loss of DNMT3A (Dnmt3a+/-) in these megakaryocyte-biased HSCs has distinct consequences compared with the rest of the HSC pool. These megakaryocyte-biased …

Long-Term Care Services And Support In The Mountain West, 2023, Taylor Volk, Ivan Sun, Miguel Soriano Ralston, Kristian Thymianos, Caitlin J. Saladino, William E. Brown Jr.

Health

This fact sheet presents data from the American Association of Retired Persons (AARP) report, “Long-Term Services and Supports 2023 State Scorecard Report,” comparing Long-Term Services and Supports (LTSS) systems across multiple dimensions of performance for older adults, people with physical disabilities, and family caregivers for all 50 states. This fact sheet focuses on state-level LTSS system data for the Mountain West states of Arizona, Colorado, Nevada, New Mexico, and Utah.

Enhancing The Eden Alternative Model With Well Standards: A Case Study Analysis, Mariah Stoner

Architecture Masters of Science Program: Theses

This thesis investigates the potential for improving the Eden Alternative Model, a person-centered approach to elder care that emphasizes creating a homelike environment and meaningful relationships, using WELL Standards, a building certification system focused on enhancing human health and well-being through improvements in environmental quality. Through a mixed-methods approach involving quantitative data analysis and qualitative case studies, this research examines how WELL Standards, which cover aspects such as air quality, water quality, lighting, and thermal comfort, can improve environmental quality and resident satisfaction within the Eden Alternative Model. This research introduces a tailored approach to elder care by combining these …

Clinical Outcomes For Patients With Obstructive Shock With Pe In Octogenarians, Nonagenarians, And Centenarians: An Analysis Of The National Inpatient Sample, Tony Elias, Fady Beshara, Daniel Basta, Mena Elmalh, Matthew Ebrahim, Taha Wasim Syed, Olga Sarah, Abdallah Hussein

Rowan-Virtua Research Day

One of the most common causes of obstructive shock is massive pulmonary embolism. I these patients with compounded morbidities and limited filling of the heart we sought to sample databases to analyze the inpatient outcomes of the population.

Outcomes Of Octogenarians, Nonagenarians, And Centenarians That Underwent Left Atrial Appendage Occlusion: A Population-Based Study, Tony Elias, Fady Beshara, Daniel Basta, Mena Elmalh, Matthew Ebrahim, Taha Syed, Olga Sarah, Abdallah Hussein

Rowan-Virtua Research Day

An evaluation of that national inpatient sample database to explore the outcomes for patients above the age of seventy who underwent left atrial appendage occlusion.

Clinical Outcomes For Patients With Ventilator-Associated Pneumonia In Octogenarians, Nonagenarians, And Centenarians: A Population-Based Study, Tony Elias, Fady Beshara, Daniel Basta, Mena Elmalh, Matthew Ebrahim, Taha Syed, Olga Sarah, Abdallah Hussein

Rowan-Virtua Research Day

We sought to examine the national inpatient sample data-base to describe in-hospital outcomes among patients over seventy who acquire ventilator-associated pneumonia after being on the ventilator for over 48 hours.

Mechanisms Mediating The Protective Effects Of Caffeine On Alzheimer’S Disease Progression, Jessica Ivanov, Malky Bernat, Joshua Drawbaugh, Jeremy Mehta, Namira Rahmani, Saikumar Thellapally

Rowan-Virtua Research Day

Background: This review aims to examine the molecular mechanisms through which caffeine may exert neuroprotective effects against Alzheimer’s Disease (AD).

Methods: A literature review was done across PubMed and Embase to identify studies between 2000 and 2024, exploring the mechanism behind caffeine’s effects on AD. The criteria focused on peer-reviewed articles involving human or animal models. Information was gathered on study design, participant characteristics, caffeine consumption, proposed mechanisms, and effects on cognition.

Results: The studies support caffeine's potential as a therapeutic, neuromodulator against AD through six mechanisms: inhibition of adenosine A2A receptors, decreased amyloid-beta production and aggregation, promotion of amyloid …

Analysis Of Blood Pressure, Blood Glucose, And Cholesterol Screening Results Collected During Street Outreach Events In Atlantic County, New Jersey, As Part Of A Mobile Community Health Worker Program To Identify Residents At High Risk For Severe Covid-19, Kenneth W. Stagliano, Richard T. Jermyn, Alexander E. Abbott, Donato F. Tassoni, Amy Palen, Frank Carozza, Nicole M. Miller

Rowan-Virtua Research Day

Background: This study seeks to evaluate the status of random blood pressure, cholesterol, and blood glucose screening results in Atlantic County, NJ. This study also aims to identify the rates of hyperlipidemia, hyperglycemia, and hypertension within the target population, and potential differences between surveyed age demographics.

Methods: Medical students participating in the COVID-19 CHW Service Corps collected blood pressure, cholesterol, and blood glucose screenings at multiple screening events in Atlantic County, NJ during a two-year period. This data was analyzed retrospectively using ANOVA, non-parametric Kruskal Walis Test, and Tukey's pairwise comparisons.

Results: Senior adults had significantly higher SBP than …

The Effectiveness Of Ras Treatment In Improving Gait Patterns In Patients With Parkinson’S Disease: A Literature Review, Vivian Huang, Andrea Hunt, Alicia Chopyk

Rowan-Virtua Research Day

Parkinson’s Disease (PD) is a neurodegenerative disorder involving the loss of dopaminergic neurons leading to symptoms such as tremor and gait disturbance. This results in the classic shuffling gait: stooped posture, variation in stride length, variation in cadence, reduced gait velocity, inability to maintain a steady rhythm, and an increased fear of falling. This study’s objective is to review the current literature on the use of rhythmic auditory stimulation (RAS)Ⓡ as a treatment option for PD. Previous research has looked at RASⓇ as a potential non-pharmacologic treatment because researchers hypothesize that listening to music produces an external rhythm that the …

Case Report: When Confusion Signals A Crisis: Rethinking The Diagnosis Of Meningitis In Geriatric Sepsis, Asma Zahid

Rowan-Virtua Research Day

We report the case of an 88-year-old female who presented with altered mental status, initially suspected to have urosepsis but ultimately diagnosed with streptococcal meningitis. The patient had a history of lethargy and anorexia over the past few days and was found to have sepsis. Despite initial focus on urosepsis, blood cultures revealed Streptococcus, and cerebrospinal fluid analysis confirmed bacterial meningitis. This case highlights the potential for meningitis to be overlooked in elderly patients with suspected sepsis, underscoring the importance of broad diagnostic considerations and early intervention. This case highlights the importance of considering meningitis in elderly patients presenting with …

On Death And Disease: How Physicians’ Perspectives Compare Across Specialties Through Written Work, Stephanie Anne C. Alkonga

Honors Capstones

Narrative medicine is a tool that the medical field is increasingly utilizing to cultivate patient-centered and culturally competent doctors and to reflect on lived experiences through texts that focus on psychosocial best practices. This study aims to examine the language used in physician-written works that address how physicians in different medical specialties treat the aging and the terminally ill, and how they view the deceased. Qualitative data guided by thematic questions will primarily be used in the analysis and comparison of these texts’ tone, rhetoric, diction, and similar literary devices to uncover if certain patterns arise across such specialties. Findings …

Global Multi-Specialty Clinician Perspectives On The Implementation Of Alzheimer's Disease Blood Biomarkers, Joanne Rodda, Lindsey A. Kuchenbecker, Wyllians V. Borelli, Mari L. Demarco, Raphael M. Castilhos, Erin E. Cawston, Tinatin Chabrashvili, Melissa M. Budelier, Claudia Duran Aniotz, Chinedu Momoh

Brain and Mind Institute

Introduction: Clinicians' views on the clinical readiness of Alzheimer's disease (AD) blood biomarkers (BBMs) are not well understood.

Methods: The Alzheimer's Association International Society to Advance Alzheimer's Research and Treatment Biofluid-Based Biomarkers Professional Interest Area conducted a survey to elicit clinician opinions on AD BBM implementation, including contexts of use, assay selection, reporting, and result interpretation.

Results: Clinician respondents (n = 212) practiced in Europe (56%), North America (24%), the Caribbean and Central/South America (11%), and other continents (9%). Most respondents were medical doctors (80%) practicing in secondary or tertiary care (88%). For 56%, cerebrospinal fluid AD …

The Infected Diabetic Foot: Bacteraemia And Endocarditis Complicating Moderate And Severe Foot Infections, Mario C Reyes, Arthur N Tarricone, Mathew J Sideman, Michael C Siah, Bijan Najafi, Edgar J G Peters, Lawrence A Lavery

Center on Aging Staff Publications

To identify the incidence of blood stream infections (BSIs) and endocarditis in patients with diabetic foot infections (DFIs), risk factors and clinical outcomes. A post hoc analysis of 280 patients using pooled patient level data from three RTCs. Blood cultures were drawn at time of admission for DFI. Deep intraoperative cultures were obtained from infected foot wounds. Data from the 12-month follow-up were used to determine clinical outcomes. 77.1% (N = 216) had blood cultures of which 15.7% (n = 34) had BSI. One patient (3.3%) had endocarditis. Risk factors for BSI included Charcot Neuroarthropathy history (20.6% vs. 7.1%, p …

Clonal Dynamics And Somatic Evolution Of Haematopoiesis In Mouse, Chiraag D Kapadia, Nicholas Williams, Kevin J Dawson, Caroline Watson, Matthew J Yousefzadeh, Duy Le, Kudzai Nyamondo, Sreeya Kodavali, Alex Cagan, Sarah Waldvogel, Xiaoyan Zhang, Josephine De La Fuente, Daniel Leongamornlert, Emily Mitchell, Marcus A Florez, Krzysztof Sosnowski, Rogelio Aguilar, Alejandra Martell, Anna Guzman, David Harrison, Laura J Niedernhofer, Katherine Y King, Peter J Campbell, Jamie Blundell, Margaret A Goodell, Jyoti Nangalia

Center on Aging Staff Publications

Haematopoietic stem cells maintain blood production throughout life1. Although extensively characterized using the laboratory mouse, little is known about clonal selection and population dynamics of the haematopoietic stem cell pool during murine ageing. We isolated stem cells and progenitors from young and old mice, identifying 221,890 somatic mutations genome-wide in 1,845 single-cell-derived colonies. Mouse stem cells and progenitors accrue approximately 45 somatic mutations per year, a rate only approximately threefold greater than human progenitors despite the vastly different organismal sizes and lifespans. Phylogenetic patterns show that stem and multipotent progenitor cell pools are established during embryogenesis, after which …

The Dialysis Foot- The Impact Of Presenting Estimated Glomerular Filtration Rate On Clinical Outcomes In Patients Hospitalized With Diabetic Foot Infections, Arthur Tarricone, Tyler L Coye, Allen Gee, Bijan Najafi, Michael C Siah, Lawrence A Lavery

Center on Aging Staff Publications

To evaluate the association between presenting estimated glomerular filtration rate (eGFR) and clinical outcomes in patients hospitalized with diabetic foot infections. This retrospective cohort study included 344 patients with moderate to severe diabetic foot infections. Patients were categorized into three groups based on presenting estimated eGFR: eGFR ≥60 (eGFR >60 mL/min), eGFR 30-60 (eGFR 30-60 mL/min) and eGFR < 30 (eGFR < 30 mL/min). Outcomes assessed included wound healing, time to heal, re-infection, amputation, mortality and re-hospitalization for infection. Compared with patients with eGFR < 30, patients with eGFR ≥60 had significantly lower rates of retinopathy, peripheral arterial disease and use of beta blockers or calcium channel blockers. Glycated haemoglobin levels were inversely related to eGFR, decreasing as eGFR severity increased. Haemoglobin levels were significantly lower, and inflammatory markers (ESR and CRP) were significantly higher in patients with eGFR < 30. There were no significant differences among eGFR groups in rates of wound healing, time to heal, re-infection or amputation. However, mortality increased with decreasing eGFR (1.9% in eGFR ≥60 vs. 3.2% in eGFR 30-60 vs. 8.1% in eGFR < 30; p = 0.04). Similarly, re-hospitalization for infection at a different site also increased with decreasing eGFR (20.5% in eGFR ≥60 vs. 28.1% in eGFR 30-60 vs. 48.4% in eGFR < 30; p <  0.01). In diabetic foot infections, presenting eGFR severity did not affect rates of wound healing, time to heal, re-infection or amputation. However, decreasing eGFR was associated with increased mortality and re-hospitalization for infection at a different site. In this study, presenting eGFR was not a predictive value for wound healing or time until healing, however was associated with rehospitalization and overall mortality this diabetic foot population.

Optimizing The Well-Being Of Residents Diagnosed With Dementia: An Activities Calendar And Guide For Cognitive And Physical Engagement, Kaylex L. Monteagudo Parra

Undergraduate Theses

This thesis explores the critical role of structured activities in enhancing the cognitive, emotional, and physical well-being of individuals with dementia. Drawing on evidence-based research and practical experience as an Activities Assistant, it emphasizes how engaging, person-centered activities can mitigate symptoms, improve quality of life, and promote social interaction across the stages of disease progression. The research culminates in the development of an ideal activities calendar tailored to patients with dementia, accompanied by a comprehensive guide detailing activity benefits, implementation strategies, and required resources. This framework addresses the unique challenges of dementia care, offering practical tools for caregivers to adapt …

Inhibition Of Soluble Epoxide Hydrolase Confers Neuroprotection And Restores Microglial Homeostasis In A Tauopathy Mouse Model, Shuo Wang, Chuangye Qi, Chetan Rajpurohit, Baijayanti Ghosh, Wen Xiong, Baiping Wang, Yanyan Qi, Sung Hee Hwang, Bruce D Hammock, Hongjie Li, Li Gan, Hui Zheng

Center on Aging Staff Publications

Background: The epoxyeicosatrienoic acids (EETs) are derivatives of the arachidonic acid metabolism with anti-inflammatory activities. However, their efficacy is limited due to the rapid hydrolysis by soluble epoxide hydrolase (sEH). Inhibition of sEH has been shown to stabilize the EETs and reduce neuroinflammation in Aβ mouse models of Alzheimer's disease (AD). However, the role of the sEH-EET signaling pathway in other CNS cell types and neurodegenerative conditions are less understood.

Methods: Here we investigated the mechanisms and functional role of the sEH-EET axis in tauopathy by treating PS19 mice with a small molecule sEH inhibitor TPPU and by crossing the …

Impact Of Age On Biology, Presentation And Outcomes In Marginal Zone Lymphoma: Results From A Multicenter Cohort Study, Pallawi Torka, Natalie S. Grover, Timothy J. Voorhees, Reem Karmali, Kaitlin Annunzio, Marcus P. Watkins, Andrea Anampa-Guzmán, Heather Reves, Montreh Tavakkoli, Beth Christian, Colin Thomas, Stefan K. Barta, Praveen Ramakrishnan Geethakumari, Nancy L. Bartlett, Geoffrey Shouse, Adam J. Olszewski, Narendranath Epperla

Department of Medicine Faculty Papers

Given the paucity of age-specific data about biology, presentation, and treatment outcomes in adults with MZL, we sought to evaluate differences between younger (≤ 70 years) and older (> 70 years) patients with MZL in a large retrospective cohort treated in the contemporary era (2010 onwards). The primary objective was progression-free survival (PFS), while secondary objectives included the evaluation of overall survival (OS) and the cumulative incidence of transformation between the 2 groups. A total of 598 patients were included in the analysis and among these 32% were > 70 years of age. There were no age-based differences in the prevalence …

The Havcr1-Centric Host Factor Network Drives Zika Virus Vertical Transmission, Wenzhe Yu, Jun Tao, Hongmin Cao, Wanshan Zheng, Beiang Zhang, Yue Zhang, Peiqun Xu, Yiwei Zhang, Xuan Liu, Yinan Wang, Han Cai, Gang Liu, Fan Liu, Haibin Wang, Haiyan Zhao, Indira U Mysorekar, Xiaoqian Hu, Bin Cao

Center on Aging Staff Publications

Zika virus (ZIKV) vertical transmission results in devastating congenital malformations and pregnancy complications; however, the specific receptor and host factors facilitating ZIKV maternal-fetal transmission remain elusive. Here, we employ a genome-wide CRISPR screening and identify multiple placenta-intrinsic factors modulating ZIKV infection. Our study unveils that hepatitis A virus cellular receptor 1 (HAVCR1) serves as a primary receptor governing ZIKV entry in placental trophoblasts. The GATA3-HAVCR1 axis regulates heterogeneous cell tropism in the placenta. Notably, placenta-specific Havcr1 deletion in mice significantly impairs ZIKV transplacental transmission and associated adverse pregnancy outcomes. Mechanistically, the immunoglobulin variable-like domain of HAVCR1 binds to ZIKV via …

Incident Hearing Loss And Subsequent Risk Of Dementia: The Health And Retirement Study 2010-2018, Jingkai Wei, Youngran Kim, Yike Li, Donglan Zhang, Casey Crump

Faculty, Staff and Student Publications

Background and Objectives

Research Design and Methods

Life Course Analysis: How Social Needs And Family Dynamics Impact Clinical Decision-Making, Vito Agrusa, Laila N. Abdallah, Bryen Turco

Clinical Research in Practice: The Journal of Team Hippocrates

The authors explore Life Course Analysis and how social needs (including pet care), changing demographics, and loneliness affect inpatient hospitalization and clinical decision making.

Histone H3 Cysteine 110 Enhances Iron Metabolism And Modulates Replicative Life Span In Saccharomyces Cerevisiae, Chen Cheng, Brenna S Mccauley, Nedas Matulionis, Maria Vogelauer, Dimitrios Camacho, Heather R Christofk, Weiwei Dang, Nicholas A T Irwin, Siavash K Kurdistani

Center on Aging Staff Publications

The discovery of histone H3 copper reductase activity provides a novel metabolic framework for understanding the functions of core histone residues, which, unlike N-terminal residues, have remained largely unexplored. We previously demonstrated that histone H3 cysteine 110 (H3C110) contributes to cupric (Cu2+) ion binding and its reduction to the cuprous (Cu1+) form. However, this residue is absent in Saccharomyces cerevisiae, raising questions about its evolutionary and functional significance. Here, we report that H3C110 has been lost in many fungal lineages despite near-universal conservation across eukaryotes. Introduction of H3C110 into S. cerevisiae increased intracellular Cu1+ levels and ameliorated the iron …