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807 citation(s) found for "Wu, Teresa H Y".

Bilateral Oophorectomy and All-Cause Mortality in Women With BRCA1 and BRCA2 Sequence Variations
Møller, Pål , McCuaig, Jeanna , Eisen, Andrea , Bordeleau, Louise , Zakalik, Dana , Metcalfe, Kelly , Olopade, Olufunmilayo I. , Sun, Ping , Narod, Steven A. , Sweet, Kevin , Elser, Christine , Wiesner, Georgia L. , Poll, Aletta, Kim, Raymond H. , Armel, Susan T., Demsky, Rochelle, Serfas, Kim, Panchal, Seema, Cullinane, Carey A., Reilly, Robert E., Mercer, L J, Dungan, J.S., Lemire, Edmond G., Zovato, Stefania , Rastelli, Antonella, Olopade, Olufunmilayo I , Metcalfe, Kelly A , Eisen, Andrea , Bordeleau, Louise , Kim, Raymond H , Kotsopoulos, Joanne , Gronwald, Jacek , Huzarski, Tomasz , Pal, Tuya , Singer, Christian F. , Karlan, Beth Y. , Aeilts, Amber M. , Eng, Charis , Foulkes, William D. , Tung, Nadine , Couch, Fergus J. , Fruscio, Robert , Neuhausen, Susan L. , Cybulski, Cezary , Lubiński, Jan , Armel, Susan, Steele, Linda, Saal, Howard M. , Rayson, Daniel , Mercer, Leanne, Cajal, Teresa Ramón y , Cohen, Stephanie A.

JAMA Oncology | February 29, 2024 | Volume: 10 | Issue: 4 | Pages: 484

10.1001/jamaoncol.2023.6937 | PMID 38421677 Get It

ImportancePreventive bilateral salpingo-oophorectomy is offered to women at high risk of ovarian cancer who carry a pathogenic variant in BRCA1 or BRCA2; however, the association of oophorectomy with all-cause mortality has not been clearly defined.ObjectiveTo evaluate the association between bilateral oophorectomy and all-cause mortality among women with a BRCA1 or BRCA2 sequence variation.Design, Setting, and ParticipantsIn this international, longitudinal cohort study of women with BRCA sequence variations, information on bilateral oophorectomy was obtained via biennial questionnaire. Participants were women with a BRCA1 or BRCA2 sequence variation, no prior history of cancer, and at least 1 follow-up questionnaire completed. Women were followed up from age 35 to 75 years for incident cancers and deaths. Cox proportional hazards regression was used to estimate the hazard ratios (HRs) and 95% CIs for all-cause mortality associated with a bilateral oophorectomy (time dependent). Data analysis was performed from January 1 to June 1, 2023.ExposuresSelf-reported bilateral oophorectomy (with or without salpingectomy).Main Outcomes and MeasuresAll-cause mortality, breast cancer–specific mortality, and ovarian cancer–specific mortality.ResultsThere were 4332 women (mean age, 42.6 years) enrolled in the cohort, of whom 2932 (67.8%) chose to undergo a preventive oophorectomy at a mean (range) age of 45.4 (23.0-77.0) years. After a mean follow-up of 9.0 years, 851 women had developed cancer and 228 had died; 57 died of ovarian or fallopian tube cancer, 58 died of breast cancer, 16 died of peritoneal cancer, and 97 died of other causes. The age-adjusted HR for all-cause mortality associated with oophorectomy was 0.32 (95% CI, 0.24-0.42; P < .001). The age-adjusted HR was 0.28 (95% CI, 0.20-0.38; P < .001) and 0.43 (95% CI, 0.22-0.90; P = .03) for women with BRCA1 and BRCA2 sequence variations, respectively. For women with BRCA1 sequence variations, the estimated cumulative all-cause mortality to age 75 years for women who had an oophorectomy at age 35 years was 25%, compared to 62% for women who did not have an oophorectomy. For women with BRCA2 sequence variations, the estimated cumulative all-cause mortality to age 75 years was 14% for women who had an oophorectomy at age 35 years compared to 28% for women who did not have an oophorectomy.Conclusions and RelevanceIn this cohort study among women with a BRCA1 or BRCA2 sequence variation, oophorectomy was associated with a significant reduction in all-cause mortality.
MRI Surveillance and Breast Cancer Mortality in Women With BRCA1 and BRCA2 Sequence Variations
Møller, Pål , Eisen, Andrea , Peck, Larissa , Bordeleau, Louise , Zakalik, Dana , Stempa, Klaudia , Dungan, J.S., Cullinane, Carey A., Olopade, Olufunmilayo I. , Metcalfe, Kelly , Sun, Ping , Narod, Steven A. , Sweet, Kevin , Velsher, Lea, McCuaig, Jeanna , Panchal, Seema, Poll, Aletta, Lemire, Edmond G., Serfas, Kim, Costalas, Josephine Wagner, Blum, Joanne L. , Olopade, Olufunmilayo I , Metcalfe, Kelly A , Eisen, Andrea , Bordeleau, Louise , Lubiński, Jan , Kotsopoulos, Joanne , Pal, Tuya , Karlan, Beth Y. , Aeilts, Amber M. , Eng, Charis , Foulkes, William D. , Tung, Nadine , Couch, Fergus J. , Fruscio, Robert , Cajal, Teresa Ramón y , Singer, Christian F. , Neuhausen, Susan L. , Cybulski, Cezary , Gronwald, Jacek , Huzarski, Tomasz , Senter, Leigha , Saal, Howard M. , Armel, Susan Randall , Reilly, Richard B. , Cohen, Stephanie A.

JAMA Oncology | February 29, 2024 | Volume: 10 | Issue: 4 | Pages: 493

10.1001/jamaoncol.2023.6944 | PMID 38421676 Get It

Importance Magnetic resonance imaging (MRI) surveillance is offered to women with a pathogenic variant in the BRCA1 or BRCA2 gene who face a high lifetime risk of breast cancer. Surveillance with MRI is effective in downstaging breast cancers, but the association of MRI surveillance with mortality risk has not been well defined. Objective To compare breast cancer mortality rates in women with a BRCA1 or BRCA2 sequence variation who entered an MRI surveillance program with those who did not. Design, Setting, and Participants Women with a BRCA1 or BRCA2 sequence variation were identified from 59 participating centers in 11 countries. Participants completed a baseline questionnaire between 1995 and 2015 and a follow-up questionnaire every 2 years to document screening histories, incident cancers, and vital status. Women who had breast cancer, a screening MRI examination, or bilateral mastectomy prior to enrollment were excluded. Participants were followed up from age 30 years (or the date of the baseline questionnaire, whichever was later) until age 75 years, the last follow-up, or death from breast cancer. Data were analyzed from January 1 to July 31, 2023. Exposures Entrance into an MRI surveillance program. Main Outcomes and Measures Cox proportional hazards modeling was used to estimate the hazard ratios (HRs) and 95% CIs for breast cancer mortality associated with MRI surveillance compared with no MRI surveillance using a time-dependent analysis. Results A total of 2488 women (mean [range] age at study entry 41.2 [30-69] years), with a sequence variation in the BRCA1 (n = 2004) or BRCA2 (n = 484) genes were included in the analysis. Of these participants, 1756 (70.6%) had at least 1 screening MRI examination and 732 women (29.4%) did not. After a mean follow-up of 9.2 years, 344 women (13.8%) developed breast cancer and 35 women (1.4%) died of breast cancer. The age-adjusted HRs for breast cancer mortality associated with entering an MRI surveillance program were 0.20 (95% CI, 0.10-0.43; P < .001) for women with BRCA1 sequence variations and 0.87 (95% CI, 0.10-17.25; P = .93) for women with BRCA2 sequence variations. Conclusion and Relevance Results of this cohort study suggest that among women with a BRCA1 sequence variation, MRI surveillance was associated with a significant reduction in breast cancer mortality compared with no MRI surveillance. Further studies of women with BRCA2 sequence variations are needed to ascertain these women obtain the same benefits associated with MRI surveillance.
Treatments for Cannabis Use Disorder across the Lifespan: A Systematic Review
Ghafouri, Mohammad , Costa, Sabrina Corrêa da , Gold, Mark S. , Rummans, Teresa A. , Correa da Costa, Sabrina, Zare Dehnavi, Ali, Dehnavi, Ali Zare

Brain Sciences | February 28, 2024 | Volume: 14 | Issue: 3 | Pages: 227

10.3390/brainsci14030227 | PMID 38539616 Get It

Cannabis use disorder (CUD) is a growing public health concern, with rising prevalence and significant impact on individuals across age groups. This systematic review examines 24 studies investigating pharmacological and non-pharmacological interventions for CUD among adolescents (up to 17), young adults (18–24), and older adults (25–65). Database searches were conducted for randomized controlled trials of CUD interventions reporting outcomes such as cannabis use, abstinence, withdrawal symptoms, and treatment retention. For adolescents, interventions such as contingent rewards and family engagement have shown promise, while young adults benefit from technology-based platforms and peer support. In older adults, pharmacological adjuncts combined with counseling have shown promise in enhancing treatment outcomes. However, optimal treatment combinations remain uncertain, highlighting the need for further research. Addressing CUD requires tailored interventions that acknowledge developmental stages and challenges across the lifespan. Although promising interventions exist, further comparative effectiveness research is needed to delineate the most efficacious approaches.
Vascular Diseases in Women: Do Women Suffer from Them Differently?
Farkas, Katalin , Stanek, Agata , Zbinden, Stéphanie, Borea, Barbara, Ciurica, Simina, Moore, Vanessa , Maguire, Peggy, Alajar, Elaine, Marcoccia, Antonella , Erer, Dilek , Casanegra, Ana I. , Sharebiani, Hiva , Sprynger, Muriel , Kavousi, Maryam , Catalano, M. , Casanegra, Ana I , Sharebiani, Hiva , Sprynger, Muriel , Kavousi, Maryam , Catalano, Mariella , Farkas, Katalin , Stanek, Agata , Ciurică, Simina , Moore, Vanessa, Abola, Maria Teresa B.

Journal of Clinical Medicine | February 15, 2024 | Volume: 13 | Issue: 4 | Pages: 1108

10.3390/jcm13041108 | PMID 38398419 Get It

According to the World Health Organization, cardiovascular disease (CVD) is the leading cause of death among women worldwide, yet its magnitude is often underestimated. Biological and gender differences affect health, diagnosis, and healthcare in numerous ways. The lack of sex and gender awareness in health research and healthcare is an ongoing issue that affects not only research but also treatment and outcomes. The importance of recognizing the impacts of both sex and gender on health and of knowing the differences between the two in healthcare is beginning to gain ground. There is more appreciation of the roles that biological differences (sex) and sociocultural power structures (gender) have, and both sex and gender affect health behavior, the development of diseases, their diagnosis, management, and the long-term effects of an illness. An important issue is the knowledge and awareness of women about vascular diseases. The risk of cardiovascular events is drastically underestimated by women themselves, as well as by those around them. The purpose of this review is to draw attention to improving the medical care and treatment of women with vascular diseases.
Rhodococcus erythropolis septic arthritis
Grant, Leah , Seville, Maria Teresa , Vikram, Holenarasipur R. , Grant, Leah M , Seville, Maria T., Graf, Erin H. , Vikram, Holenarasipur R.

BMJ Case Reports | February 7, 2024 | Volume: 16 | Issue: 10 | Pages: e256864

10.1136/bcr-2023-256864 | PMID 37802590 Get It

A woman in her 50s presented with a 4-day history of left knee pain, erythema, swelling as well as malaise and rigours 1 month after undergoing a left knee meniscectomy. She was diagnosed with left native knee septic arthritis and underwent arthroscopic irrigation and debridement of the knee; cultures from synovial tissue grew Rhodococcus erythropolis. Rhodococcus spp are soil-dwelling and livestock-dwelling bacteria which occasionally cause disease in immunocompromised hosts. Infection in immunocompetent hosts is rare, and septic arthritis secondary to Rhodococcus erythropolis has not been reported previously.
Kinetics of CA19-9 decline in a randomized phase III study of irinotecan liposome injection, oxaliplatin, 5-fluorouracial/leucovorin (NALIRIFOX) or nab-paclitaxel plus gemcitabine (GEM+NABP) in patients who have not previously received chemotherapy for met
Chandana, Sreenivasa R , Pazo-Cid, Roberto , Dean, Andrew , Lee, Woo Jin , Goetze, Thorsten Oliver , Paulson, Andrew Scott , Pant, Shubham , Hubner, Richard , Xiao, Zhimin , Li, Jia , Benzaghou, Fawzi, Wainberg, Zev A. , Melisi, Davide , Macarulla, Teresa , Fouchardière, Christelle de la , Kišš, Igor , Cutsem, Eric Van , Bekaii‐Saab, Tanios , Pant, Shubham , O’Reilly, Eileen M.

Journal of Clinical Oncology | January 22, 2024 | Volume: 42 | Issue: 3_suppl | Pages: 687-687

10.1200/jco.2024.42.3_suppl.687 Get It

687 Background: The NAPOLI 3 study (NCT04083235, N = 770) reported that NALIRIFOX improved overall survival (OS) vs Gem+NabP with manageable toxicity in 1L treatment of metastatic pancreatic adenocarcinoma. We explored changes in CA19-9 levels and their potential associations with efficacy as an important tumor marker in pancreatic adenocarcinoma. Methods: In NAPOLI 3, CA19-9 was evaluated at baseline and every 8 weeks until patients discontinued study treatment. The detection limit of CA19-9 was 8000 kU/L in this study. The Cox proportional hazards regression and logistic regression were employed to investigate the relationship between CA19-9 decrease and OS, progression-free survival (PFS), and overall response rate (ORR). Results: Patients with evaluable CA19-9 (levels =< 8000) at baseline and additional measurements at weeks 8 and 16 were included in the analysis (NALIRIFOX, n = 179; Gem+NabP, n = 194). The median baseline CA19-9 level was 378.0 and 409.7 kU/L for the NALIRIFOX and Gem+NabP arms, respectively. Overall, patients with (vs without) any CA 19-9 decrease by week 16 had a higher ORR (59.9% vs 35.2%; p = 0.002), a longer median PFS (9.2 vs 6.2 months; p < 0.001) and a longer median OS (14.2 vs 8.7 months; p = 0.005), respectively in a pooled analysis of the treatments. In the NALIRIFOX arm, patients with any CA19-9 decrease by week 16 had a higher confirmed ORR of 65.1% compared with those without at 42.4% ( p < 0.001), a median PFS of 9.5 vs 7.1 months ( p < 0.001) and a median OS of 15.4 versus 8.4 months ( p = 0.004), respectively. In the Gem+NabP arm, patients with CA19-9 decrease by week 16 had a higher ORR of 55.5% compared with those without at 23.8% ( p = 0.012), a median PFS of 7.6 versus 5.8 months ( p < 0.001) and a median OS of 13.7 versus 11.9 months ( p = 0.235), respectively. Conclusions: CA19-9 decrease by week 16 has the potential to be an early prognostic factor for OS, PFS and ORR. The results should be interpreted with caution as a considerable percentage of patients were excluded due to non-evaluable CA19-9 that exceeded the lab detection limit of 8000 kU/L. Clinical trial information: NCT04083235 .
Quality of life (QOL) for patients with esophageal cancer receiving trimodality therapy with induction chemotherapy, chemoradiation, and surgery: Results from CALGB 80803 (Alliance).
Fruth, Briant, Shergill, Ardaman , Meyerhardt, Jeffrey A. , Ilson, David H. , Deshields, Teresa L. , Meyerhardt, Jeffrey A , Goodman, Karyn A. , Dueck, Amylou C. , Noonan, Anne M. , Bekaii‐Saab, Tanios , O’Reilly, Eileen M.

Journal of Clinical Oncology | January 22, 2024 | Volume: 42 | Issue: 3_suppl | Pages: 283-283

10.1200/jco.2024.42.3_suppl.283 Get It

283 Background: The randomized phase II CALGB 80803 trial evaluated use of PET imaging for early assessment of induction chemotherapy (iCT) responsiveness to tailor therapy for patients with esophageal and gastroesophageal junction adenocarcinomas (EC) undergoing trimodality therapy. The primary endpoint of improving pathologic complete response rates using PET-adapted therapy was met. A companion QOL study aimed to characterize patients’ experience through iCT, chemoradiation (CRT) and surgery (S). Methods: Between 11/2011 and 5/2015, 241 eligible patients were randomized to an iCT regimen: modified oxaliplatin, leucovorin, and 5-fluorouracil (FOLFOX) or carboplatin/paclitaxel (CP), followed by PET scan then CRT, either continuing on the same CT for PET-responders (PET-R) or crossing over to the alternative CT for PET-nonresponders (PET-NR). We prospectively collected QOL domains and symptoms at baseline (T1), after iCT (T2), after CRT (T3), and 3- (T4) and 6- months (T5) after S using the EORTC QLQ-C30, The Esophageal Cancer subscale (EORTC OES18), FACT Neurotoxicity Scale (FACT-NTX), and 6 questions from the PRO-CTCAE. QOL scores were compared between iCT groups and between PET-R and PET-NR at each time point using mixed models. The association of QOL scores at enrollment with overall survival (OS) was tested using Cox regression. Results: 189 patients enrolled on the QOL sub-study, 92 received induction FOLFOX and 97 induction CP. Of those, 110 were PET-R and 79 were PET-NR. 97.9% went on to CRT, and 83.6% underwent S. Global QOL and symptoms statistically significantly worsened from T1 to T2 in 14 of 25 domains, and remained significantly worsened from T1 at: T3 for 19 of 25 domains, T4 for 17 of 25 domains, and T5 for 6 of 25 domains. Changes from T1 significantly favored iFOLFOX (vs iCP) for ability to eat (at T3 and T4), GI symptoms (at T3 and T4), and talking (at T5). Changes from T1 significantly favored iCP (vs iFOLFOX) for neuropathy (at T2, T3, and T4) and coughing (at T5). Proportion of patients reporting worsened PRO-CTCAE scores did not differ between PET-R or PET-NR groups . Multiple QOL domains and symptoms were associated with OS including role functioning, global health status/QOL, appetite loss, pain, dysphagia, and ability to eat (all p<0.002). Conclusions: QOL was impacted most by CRT but returned to baseline 6 months after surgery for most domains. Observed symptom differences did not consistently favor one iCT regimen. Early interventions such as nutritional support and prehabilitation should be studied to improve QOL and OS. Clinical trial information: NCT01333033 .
Development of a flipped learning course to deliver and scale molecular variant evaluation education: A quality improvement initiative
Balcom, Jessica R. , Ellingson, Marissa S. , Bowler, Carrie , Richardson, Darcy M., Kruisselbrink, Teresa , Thomas, Brittany C. , Bowler, Carrie A

Journal of Genetic Counseling | January 10, 2024 | Volume: 33 | Issue: 1 | Pages: 168-178

10.1002/jgc4.1855 | PMID 38197720 Get It

AbstractOver the past several decades, molecular genetic testing volumes have grown and testing has expanded from single‐gene assays to multigene panels, exome sequencing, and genome sequencing. The number of molecular genetic variants that require manual interpretation has grown simultaneously, resulting in an increased demand for education on molecular variant evaluation (MVE). To meet this growing need, a team of genetic counselors and educational experts undertook a quality improvement (QI) initiative with the objectives of assessing, standardizing, and scaling access to MVE education, without increasing instructor time to deliver the education. Using the Six Sigma define–measure–analyze–improve–control (DMAIC) framework, a flipped learning course with a series of standardized online modules was developed to deliver MVE education in an enduring and accessible format for a diverse group of learners. Outcome measures included the number of online modules developed, the number of individual learners and unique learner groups accessing MVE education, and direct instruction time required to deliver MVE education. Countermeasures to ensure maintenance of educational quality included post‐course learner satisfaction scores and performance on competency assessments. Both the total number of learners and the number of unique learner groups accessing MVE education increased, while instructor time required to deliver content per learner decreased. Learner satisfaction scores remained constant and performance on competency assessments improved. The QI initiative successfully scaled MVE education to a diverse group of learners without decreasing learner outcomes or satisfaction. The flipped learning format provides a scalable and flexible educational model for instructors and learners in a rapidly changing environment that often includes remote work and education.
Lung Cancer in Ever- and Never-Smokers: Findings from Multi-Population GWAS Studies
Li, Yafang , Xiao, Xiangjun , Li, Jianrong , Han, Younghun , Cheng, Chao , Fernandes, Gail , Slewitzke, Shannon E. , Rosenberg, Susan M. , Zhu, Meng , Byun, Jinyoung , McKay, James , Lam, Stephen , Chen, Chu , Bojesen, Stig E. , Landi, Maria Teresa , Risch, Angela , Wichmann, H-Erich , Goodman, Gary E. , Field, John K. , Shete, Sanjay , Liu, Geoffrey , Andrew, Angeline S. , Grankvist, Kjell , Johansson, Mikael , Caporaso, Neil E. , Aldrich, Melinda C. , Schwartz, Ann G. , Gorlov, Ivan , Purrington, Kristen S. , Liu, Yanhong , Mandal, Diptasri , Gaba, Colette , Brennan, Paul , Xia, Jun , Fernandes, Gail F , Bossé, Yohan , McKay, James , Albanes, Demetrius , Lam, Stephen , Tardón, Adonina , Chen, Chu , Bojesen, Stig E , Landi, Maria T , Johansson, Mattias , Risch, Angela , Bickeböller, Heike , Wichmann, H-Erich , Christiani, David C. , Rennert, Gad , Arnold, Susanne M , Goodman, Gary E , Field, John K , Davies, Michael P A , Shete, Sanjay , Marchand, Loïc Le , Liu, Geoffrey , Hung, Rayjean J , Andrew, Angeline S , Kiemeney, Lambertus A , Sun, Ryan , Zienolddiny, Shanbeh , Grankvist, Kjell , Johansson, Mikael , Caporaso, Neil E , Cox, Angela , Hong, Yun‐Chul , Lazarus, Philip J. , Schabath, Matthew B , Aldrich, Melinda C , Schwartz, Ann G , Gorlov, Ivan , Purrington, Kristen S , Yang, Ping , Liu, Yanhong , Wilson, Richard K , Pinney, Susan M , Mandal, Diptasri , Willey, James C , Brennan, Paul , Xia, Jun , Shen, Hongbing , Amos, Christopher I , Han, Younghun , Cheng, Chao , Byun, Jinyoung , Bossé, Yohan , Albanes, Demetrius , Tardón, Adonina , Johansson, Mattias , Bickeböller, Heike , Rennert, Gad , Arnold, Susanne M. , Davies, Michael P.A. , Marchand, Loı̈c Le , Hung, Rayjean J. , Kiemeney, Lambertus A. , Zienolddiny, Shanbeh , Cox, Angela , Schabath, Matthew B. , Yang, Ping , Bailey‐Wilson, Joan E. , Pinney, Susan M. , Willey, James C. , Shen, Hongbing , Amos, Christopher I.

Cancer Epidemiology, Biomarkers & Prevention | January 5, 2024 | Volume: 33 | Issue: 3 | Pages: 389-399

10.1158/1055-9965.epi-23-0613 | PMID 38180474 Get It

Abstract Background: Clinical, molecular, and genetic epidemiology studies displayed remarkable differences between ever- and never-smoking lung cancer. Methods: We conducted a stratified multi-population (European, East Asian, and African descent) association study on 44,823 ever-smokers and 20,074 never-smokers to identify novel variants that were missed in the non-stratified analysis. Functional analysis including expression quantitative trait loci (eQTL) colocalization and DNA damage assays, and annotation studies were conducted to evaluate the functional roles of the variants. We further evaluated the impact of smoking quantity on lung cancer risk for the variants associated with ever-smoking lung cancer. Results: Five novel independent loci, GABRA4, intergenic region 12q24.33, LRRC4C, LINC01088, and LCNL1 were identified with the association at two or three populations (P &lt; 5 × 10−8). Further functional analysis provided multiple lines of evidence suggesting the variants affect lung cancer risk through excessive DNA damage (GABRA4) or cis-regulation of gene expression (LCNL1). The risk of variants from 12 independent regions, including the well-known CHRNA5, associated with ever-smoking lung cancer was evaluated for never-smokers, light-smokers (packyear ≤ 20), and moderate-to-heavy-smokers (packyear &gt; 20). Different risk patterns were observed for the variants among the different groups by smoking behavior. Conclusions: We identified novel variants associated with lung cancer in only ever- or never-smoking groups that were missed by prior main-effect association studies. Impact: Our study highlights the genetic heterogeneity between ever- and never-smoking lung cancer and provides etiologic insights into the complicated genetic architecture of this deadly cancer.
Accelerated aging in gait patterns is a leading indicator for cognitive decline
Barnard, Leland R , Ali, Farwa , Christianson, Teresa J., Petersen, Ronald C. , Graff‐Radford, Jonathan , Botha, Hugo , Vemuri, Prashanthi , Knopman, David S. , Jack, Clifford R. , Jones, David T.

Alzheimer's & Dementia | December 25, 2023 | Volume: 19 | Issue: S18 | Pages: No page available

10.1002/alz.078910 Get It

AbstractBackgroundQuantified accelerated aging, or “age gap,” defined as the difference between a person’s estimated age using a biological measurement, such as a brain image, and their true age, has strong associations with multiple neurodegenerative etiologies. As an alternative to imaging‐based measurements, in this study we developed an age prediction model based on gait patterns and used this model to quantify accelerated aging as an indicator of cognitive impairment and predictor of future cognitive decline.MethodA database of 16,917 pressure sensitive walkway exams from 5,307 participants in the Mayo Clinic Study of Aging was used to develop an age estimation model that included two main components. First, a novel dimensionality reduction and feature selection algorithm was used to extract gait features. Second, a regularized linear model was trained using these features to produce a sparse, clinically interpretable estimator. This model was used to calculate a gait age gap metric, which was tested for association with measures of cognitive impairment and future cognitive decline.ResultThe distributions of gait age gap in age‐matched participants defined as having no cognitive impairment (CU, n = 573), mild cognitive impairment (MCI, n = 520), or a clinical diagnosis of dementia due to Alzheimer’s (AD, n = 53) are shown in Fig 1a. A significant shift in the mean is observed between all three groups. Fig 1b. shows the distributions of baseline gait age gap values amongst individuals categorized by cognitive decline: stable CU (n = 644), MCI converters (n = 89), stable MCI (n = 78), and significant impairment converters (SI, n = 35). The baseline gait age gap in stable CU individuals was found to be significantly lower than in the already impaired or converter groups.ConclusionIn this study, we developed a model for estimating accelerated aging from gait variables in the form of a gait age gap metric. This metric was shown to be strongly associated with AD‐driven cognitive impairment as well as predictive of future cognitive decline. These results highlight the potential clinical utility of quantitative gait analysis in behavioral neurologic assessment of cognitive impairment in AD.