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Development,validation,and transportability of several machine-learned,non-exercise-based VO_(2max)prediction models for older adults

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Journal of Sport and Health Science 2024年第5期13卷 611-620页

作者： Benjamin T.Schumacher Michael J.LaMonte Andrea Z.LaCroix Eleanor M.Simonsick Steven P.Hooker Humberto Parada Jr. John Bellettiere Arun Kumar Herbert Wertheim School of Public Health and Human Longevity Science University of California San DiegoLa JollaCA 92093USA Department of epidemiology and Environmental Health School of Public Health and Health ProfessionsUniversity at BuffaloState University of New YorkBuffaloNY 14214USA Translational Gerontology Branch Intramural Research ProgramNational Institute on AgingNational Institutes of HealthBaltimoreMD 21225USA College of Health and Human Services San Diego State UniversitySan DiegoCA 92182USA Division of epidemiology and biostatistics School of Public HealthSan Diego State UniversitySan DiegoCA 92182USA University of California San Diego Moores Cancer Center La JollaCA 92093USA Computer Science and Engineering and Halicioglu Data Science Institute University of California San DiegoLa JollaCA 92093USA

Background:There exist few maximal oxygen uptake(VO_(2max))non-exercise-based prediction equations,fewer using machine learning(ML),and none specifically for older *** direct measurement of VO_(2max)is infeasible in large epidemiologic cohort studies,we sought to develop,validate,compare,and assess the transportability of several ML VO_(2max)prediction ***:The Baltimore Longitudinal Study of Aging(BLSA)participants with valid VO2_(max)tests were included(n=1080).Least absolute shrinkage and selection operator,linear-and tree-boosted extreme gradient boosting,random forest,and support vector machine(SVM)algorithms were trained to predict VO_(2max)*** developed these algorithms for:(a)the overall BLSA,(b)by sex,(c)using all BLSA variables,and(d)variables common in aging ***,we quantified the associations between measured and predicted VO_(2max)and ***:The age was 69.0±10.4 years(mean±SD)and the measured VO_(2max)was 21.6±5.9 mL/kg/*** absolute shrinkage and selection operator,linear-and tree-boosted extreme gradient boosting,random forest,and support vector machine yielded root mean squared errors of 3.4 mL/kg/min,3.6 mL/kg/min,3.4 mL/kg/min,3.6 mL/kg/min,and 3.5 mL/kg/min,*** quartiles of measured VO_(2max)showed an inverse gradient in mortality *** VO_(2max)variables yielded similar effect estimates but were not robust to ***:Measured VO_(2max)is a strong predictor of *** ML can improve the accuracy of prediction as compared to simpler approaches but estimates of association with mortality remain sensitive to *** studies should seek to reproduce these results so that VO_(2max),an important vital sign,can be more broadly studied as a modifiable target for promoting functional resiliency and healthy aging.

关键词： Cardiorespiratory fitness Prediction algorithms epidemiology Mortality

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Arterial Hypertension-Related Factors within Custodial Settings of Southern Benin in 2023

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Open Journal of epidemiology 2024年第1期14卷 157-166页

作者： Mongbo Virginie Kpozehouen Alphonse Achille Kpétékousso Department of Health Policies and Systems Regional Institute of Public Health University of Abomey-Calavi Abomey-Calavi Benin epidemiology and biostatistics Department Regional Institute of Public Health University of Abomey-Calavi Abomey-Calavi Benin Ministry of the Interior of Benin Cotonou Benin

Introduction: Hypertension, a non-communicable disease, is a major public health threat worldwide, accounting for a high level of morbidity and mortality. Although it has been extensively published among the general population, further research is needed to understand the reality of hypertension within the custodial setting. This study aimed to investigate the factors associated with arterial hypertension in custodial settings in southern Benin in 2023. Methods: This was a cross-sectional, descriptive, analytical study held in prisons in southern Benin from March to April 2023, involving inmates selected by two-stage random sampling. In the first stage, four prisons out of the six in the southern region of Benin were selected by simple random sampling. In the second stage, the prisoners were selected by systematic random sampling, with the sampling frame being the numbered list of eligible prisoners in each prison selected. Data collected by observation and questionnaire survey were analyzed using Stata 11 software. Hypertension was defined as systolic blood pressure ≥ 140 mmHg and diastolic blood pressure ≥ 90 mmHg. Overweight was defined by a body mass index (weight/height2 (kg/m2) ≥ 25. Factors associated with hypertension were identified by multiple logistic regression, at a 5% threshold of significance. Results: Altogether 336 inmates aged 37.55 ± 1.72 years were surveyed. The prevalence of hypertension in custodial settings in southern Benin in 2023 was 31.32% (95% CI [17.06;52.57]). Associated factors were inmate age (ORa = 3.36 95% CI: [1.94;5.85]) and abnormal waist circumference (ORa = 2.61 95% CI [1.27;5.40]). Conclusion: The prevalence of arterial hypertension in prisons of southern Benin (31.32%) is high when compared with the national average (25.9% (22.5-29.3)). The ministries of the Interior and Health need to collaborate to involve inmates in preventive strategies for non-communicable diseases, including hypertension.

关键词： Arterial Hypertension Associated Factors Inmates Custodial Setting Benin

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Impact of Social Determinants of Health on Self-Perceived Resilience: An Exploratory Study of Two Cohorts of Adults with Congenital Heart Disease

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Congenital Heart Disease 2024年第1期19卷 33-48页

作者： Albert Osom Krysta S.Barton Katie Sexton Lyndia Brumback Joyce P.Yi-Frazier Abby R.Rosenberg Ruth Engelberg Jill M.Steiner Department of biostatistics University of WashingtonSeattleWA98195USA biostatistics epidemiology and Analytics for Research(BEAR)Core Seattle Children’s Research InstituteSeattleWA98101USA College of Medicine University of WashingtonSeattleWA98195USA Center for Clinical and Translational Research Seattle Children’s Research InstituteSeattleWA98101USA Department of Psychosocial Oncology and Palliative Care Dana-Farber Cancer InstituteDepartment of MedicineBoston Children’s HospitalBostonMA02215USA Department of Pediatrics Harvard Medical SchoolBostonMA02215USA Division of Pulmonary Critical Care and Sleep MedicineDepartment of Medicine&Cambia Palliative Care Center of ExcellenceUniversity of WashingtonHarborview Medical CenterSeattleWA98104USA Division of Cardiology Department of Medicine&Cambia Palliative Care Center of ExcellenceUniversity of WashingtonSeattleWA98195USA

Social determinants of health(SDOH)affect quality of *** investigated SDOH impacts on self-perceived resilience among people with adult congenital heart disease(ACHD).Secondary analysis of data from two com-plementary studies:a survey study conducted May 2021–June 2022 and a qualitative study conducted June 2020–August *** was assessed through CD-RISC10 score(range 0–40,higher scores reﬂect greater self-perceived resilience)and interview *** and SDOH(education,employment,living situa-tion,monetary stability,ﬁnancial dependency,area deprivation index)data were collected by healthcare record review and *** used linear regression with robust standard errors to analyze survey data and performed a thematic analysis of interview *** participants(N=127)mean age was 42±14 years;51%were female,87%*** was moderate(75%)or complex(25%);41%functional class C or ***(mean 30±7)varied by monetary stability:compared to people with difﬁculty paying bills,resilience was 15.0 points higher(95%CI:6.9–23.1,p<0.001)for people reporting having enough money and 14.2 points higher(95%CI:5.9–22.4,p=0.001)for those reporting just enough *** participants’(N=25)mean age was 32 years(range 22–44);52%were female,72%*** was moderate(56%)or complex(44%);76%functional class C or *** discussed factors affecting resilience aligned with each of the major SDOH,prominently,economic stability and healthcare access and *** stability may be important for supporting self-perceived resi-lience in *** knowledge can inform the development of resilience interventions for this population.

关键词： Social determinants of health adult congenital heart disease resilience ﬁnancial stability

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Recipient functional status impacts on short and long-term intestinal transplant outcomes in United States adults

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World Journal of Transplantation 2024年第3期14卷 80-94页

作者： Sarpong Boateng Prince Ameyaw Solomon Gyabaah Yaw Adjepong Basile Njei Department of Medicine Yale New Haven HealthBridgeport HospitalBridgeportCT 06610United States Department of epidemiology and biostatistics University of North TexasFort WorthTX 76107United States Department of Medicine Komfo Anokye Teaching HospitalKumasi KS 1934Ghana Yale University School of Medicine New HavenCT 06520United States Section of Digestive Diseases Yale University School of MedicineNew HavenCT 06520United States

BACKGROUND Recipient functional status prior to transplantation has been found to impact post-transplant outcomes in heart,liver and kidney ***,information on how functional status,before and after transplant impacts post-transplant survival outcomes is *** To investigate the impact of recipient functional status on short and long term intestinal transplant outcomes in United States *** We conducted a retrospective cohort study on 1254 adults who underwent first-time intestinal transplantation from 2005 to *** primary outcome was *** the Karnofsky Performance Status,functional impairment was categorized as severe,moderate and *** were conducted using Kaplan-Meier curves and multivariable Cox *** The median age was 41 years,majority(53.4%)were *** impairment was present in 28.3%of *** median survival time was 906.6 *** median survival time was 1331 and 560 days for patients with normal and severe functional impairment *** with severe impairment had a 56%higher risk of mortality at one year[Hazard ratio(HR)=1.56;95%CI:1.23–1.98;P<0.001]and 58%at five years(HR=1.58;95%CI:1.24–2.00;P<0.001)compared to patients with no functional *** with worse functional status after transplant also had poor survival *** Pre-and post-transplant recipient functional status is an important prognostic indicator for short-and long-term intestinal transplant outcomes.

关键词： Intestinal transplantation Functional status Karnofsky performance status Post-transplant outcomes Survival analysis Transplant outcome

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Assessment of disability weights at the provincial and city levels based on 93,254 respondents in Fujian,China:Findings from the Fujian disability weight measurement study

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Chinese Medical Journal 2024年第11期137卷 1375-1377页

作者： Shaofen Huang Xiuquan Lin Peng Yin Yanrong Yin Maigeng Zhou Jinlei Qi Chuanhua Yu Tiehui Chen Wenling Zhong Institute for Endemic and Chronic and Non-communicable Diseases Fujian Provincial Center for Disease Control and PreventionFuzhouFujian 350012China Department of epidemiology and Health Statistics The School of Public HealthFujian Medical UniversityFuzhouFujian 350122China National Center for Chronic and Non-Communicable Disease Control and Prevention Chinese Center for Disease Control and PreventionBeijing 100050China Department of epidemiology and biostatistics School of Public HealthWuhan UniversityWuhanHubei 430071China

To the Editor:Disability weights(DWs)are essential factors to quantify health losses relating to non-fatal outcomes for estimates of disability-adjusted life years(DALYs).Although national and subnational sets of DWs were published recently in the Chinese mainland,[1]data from only 4925 participants who responded to population health equivalence(PHE)questions used to anchor the 0-1 DWs scale did not include participants from Fujian ***,it remains unknown whether people living in different cities share the same *** study provided an alternative approach using non-parametric regression to locate the DWs scale,as used in European surveys,[2]aimed at measuring DWs at the provincial and subprovincial levels in Fujian.

关键词： weights mainland Fujian

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Transcriptome Dynamics and Cell Dialogs Between Oocytes and Granulosa Cells in Mouse Follicle Development

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Genomics, Proteomics & Bioinformatics 2024年第2期22卷 93-106页

作者： Wenju Liu Chuan Chen Yawei Gao Xinyu Cui Yuhan Zhang Liang Gu Yuanlin He Jing Li Shaorong Gao Rui Gao Cizhong Jiang Key Laboratory of Spine and Spinal Cord Injury Repair and Regeneration of Ministry of Education Orthopaedic Department of Tongji HospitalSchool of Life Sciences and TechnologyTongji UniversityShanghai 200092China Clinical and Translational Research Center of Shanghai First Maternity and Infant Hospital Shanghai Key Laboratory of Signaling and Disease ResearchSchool of Life Sciences and TechnologyTongji UniversityShanghai 200092China Frontier Science Center for Stem Cell Research Tongji UniversityShanghai 200092China Department of epidemiology and biostatistics Jiangsu Key Lab of Cancer BiomarkersPrevention and TreatmentCollaborative Innovation Center for Cancer Personalized MedicineSchool of Public HealthNanjing Medical UniversityNanjing 210029China

The development and maturation of follicles is a sophisticated and multistage *** dynamic gene expression of oocytes and their surrounding somatic cells and the dialogs between these cells are critical to this *** this study,we accurately classified the oocyte and follicle development into nine stages and profiled the gene expression of mouse oocytes and their surrounding granulosa cells and cumulus *** clustering of the transcriptomes showed the trajectories of two distinct development courses of oocytes and their surrounding somatic *** expression changes precipitously increased at Type 4 stage and drastically dropped afterward within both oocytes and granulosa ***,the number of differentially expressed genes between oocytes and granulosa cells dramatically increased at Type 4 stage,most of which persistently passed on to the later ***,cell communications within and between oocytes and granulosa cells became active from Type 4 stage *** dialogs connected oocytes and granulosa cells in both unidirectional and bidirectional ***2/3,TGFBR2/3,INHBA/B,and ACVR1/1B/2B of TGF-βsignaling pathway functioned in the follicle *** signaling pathway regulated the development of granulosa ***,many maternally DNA methylation-or H3K27me3-imprinted genes remained active in granulosa cells but silent in oocytes during ***,Type 4 stage is the key turning point when significant transcription changes diverge the fate of oocytes and granulosa cells,and the cell dialogs become active to assure follicle *** findings shed new insights on the transcriptome dynamics and cell dialogs facilitating the development and maturation of oocytes and follicles.

关键词： Folliculogenesis Oocyte Granulosa cell Transcriptome Cell dialog

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PM_(1)颗粒物长期暴露与高血压住院:一项基于中国南方大型社区队列的因果推断研究

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Science Bulletin 2024年第9期69卷 1313-1322页

作者：张昱勤陈世瑞韦晶姜杰林晓王莹郝春吴文静袁柱培孙洁王涵杜志成张王剑郝元涛 Department of Medical Statistics School of Public Health&Center for Health Information Research&Sun Yat-sen Global Health InstituteSun Yat-sen UniversityGuangzhou 510080China Department of Atmospheric and Oceanic Science Earth System Science Interdisciplinary CenterUniversity of MarylandCollege Park 20742USA Department of epidemiology&biostatistics School of Public HealthPeking UniversityBeijing 100191China Peking University Center for Public Health and Epidemic Preparedness&Response Peking UniversityBeijing 100191China Key Laboratory of epidemiology of Major Diseases(Peking University) Ministry of EducationBeijing 100191China

Limited evidence exists on the effect of submicronic particulate matter(PM_(1)) on hypertension hospitalization. Evidence based on causal inference and large cohorts is even more scarce. In 2015, 36,271 participants were enrolled in South China and followed up through 2020. Each participant was assigned single-year, lag0–1, and lag0–2 moving average concentration of PM_(1)and fine inhalable particulate matter(PM2.5) simulated based on satellite data at a 1-km resolution. We used an inverse probability weighting approach to balance confounders and utilized a marginal structural Cox model to evaluate the underlying causal links between PM_(1)exposure and hypertension hospitalization, with PM2.5-hypertension association for comparison. Several sensitivity studies and the analyses of effect modification were also conducted. We found that a higher hospitalization risk from both overall(HR: 1.13, 95% CI:1.05–1.22) and essential hypertension(HR: 1.15, 95% CI: 1.06–1.25) was linked to each 1 μg/m3increase in the yearly average PM_(1)concentration. At lag0–1 and lag0–2, we observed a 17%–21% higher risk of hypertension associated with PM_(1). The effect of PM_(1)was 6%–11% higher compared with PM2.5. Linear concentration-exposure associations between PM_(1)exposure and hypertension were identified, without safety thresholds. Women and participants that engaged in physical exercise exhibited higher susceptibility, with 4%–22% greater risk than their counterparts. This large cohort study identified a detrimental relationship between chronic PM_(1)exposure and hypertension hospitalization, which was more pronounced compared with PM2.5and among certain groups.

关键词： PM_(1) Hypertension Causal inference Large cohort

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Prognostic Factors in Cardiorenal Syndrome Type 1: Retrospective Observational and Analytical Study

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World Journal of Cardiovascular Diseases 2024年第7期14卷 435-445页

作者： Mariam El Galiou Amal Zniber Hajar Fitah Naima Ouzeddoun Tarik Bouattar Nawal Doghmi Laila Lahlou Loubna Benamar Nephrology-Dialysis-Renal Transplantation Department Ibn Sina University Hospital Mohamed V University Rabat Morocco Department of Cardiology B Ibn Sina University Hospital Mohamed V University Rabat Morocco Laboratory of biostatistics Clinical Research and Epidemiology Department of Public Health Mohamed V University Rabat Morocco

Introduction: Type 1 cardiorenal syndrome (CRS 1) is characterized by acute impairment of cardiac function leading to acute renal dysfunction. CRS1 is present in 25% of patients admitted for heart failure. The objective of our study is to analyze the epidemiological, clinical, therapeutic profile and the risk and prognostic factors of these patients. Materials and Methods: We identified 120 patients with cardiorenal syndrome (CRS) over a one-year period to determine the prevalence and risk factors for developing CRS 1. We analyzed the clinical, biological, and evolutionary profiles of patients with CRS 1 and determined the risk factors for the occurrence of acute kidney injury (AKI) as well as the mortality factors in these patients. Résultats: The average age of our patients with CRS1 is 58 ± 9 years, with a sex ratio of 1.4. The average eGFR of our patients is 35 ± 6.5 ml/min/1.73m2. Diabetes was found in 17% of our patients and hypertension in 14%. The etiology of cardiac impairment is predominantly acute coronary syndrome (ACS), followed by rhythm disorders. Renally, all our patients have acute kidney injury (AKI), with 86% having functional acute renal failure and 14% having acute tubular necrosis. Therapeutically, 50% of our patients are on diuretics, 42% receive beta-blocker treatment, and RAAS blockers are used in 29% of cases. Renal replacement therapy (RRT) sessions were required in 13.8% of cases. In univariate analysis, male gender, tachyarrhythmia, and hypertension are associated with the early onset of acute kidney injury (AKI). The use of diuretics, anemia, and low left ventricular ejection fraction (LVEF) are linked to a higher risk of developing CRS 1 (p = 0.021, p = 0.037, p = 0.010 respectively). In multivariate analysis, advanced age is significantly associated with increased mortality risk in CRS 1 patients (p = 0.030), while beta-blocker use is considered a protective factor (p = 0.014). Conclusion: Our study identifies several key factors asso

关键词： Acute Kidney Injury Type 1 Cardiorenal Syndrome Acute Heart Failure Diuretics

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Direct visualization of postoperative aortobronchial fistula on computed tomography

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World Journal of radiology 2024年第8期16卷 337-347页

作者： Nanae Tsuchiya Hitoshi Inafuku Satoko Yogi Yuko Iraha Gyo Iida Mizuki Ando Takaaki Nagano Shotaro Higa Tatsuya Maeda Yuya Kise Kojiro Furukawa Koji Yonemoto Akihiro Nishie Department of radiology Graduate School of Medical ScienceUniversity of the RyukyusOkinawa 903-0215Japan Department of Thoracic and Cardiovascular Surgery Graduate School of Medical ScienceUniversity of the RyukyusOkinawa 903-0215Japan Department of biostatistics School of Health SciencesFaculty of MedicineUniversity of the RyukyusOkinawa 903-0215Japan

BACKGROUND Postoperative aortobronchial fistula(ABF)is a rare complication that can occur in 0.3%-5.0%of patients over an extended period of time after thoracic aortic *** visualization of the fistula via imaging is *** To investigate the relationship between computed tomography(CT)findings and the clinical signs/symptoms of ABF after thoracic aortic *** Six patients(mean age 71 years,including 4 men and 2 women)with suspected ABF on CT(air around the graft)at our hospital were included in this retrospective study between January 2004 and September *** CT findings included direct confirmation of ABF,peri-graft fluid,ring enhancement,dirty fat sign,atelectasis,pulmonary hemorrhage,and bronchodilation,and the clinical course were retrospectively *** proportion of each type of CT finding was *** ABF detection after surgery was found to have a mean and median of 14 and 13 years,*** signs and symptoms were asymptomatic in 4 patients,bloody sputum was found in 1 patient,and fever was present in 1 *** complications of ABF included graft infection in 2 patients and graft infection with hemoptysis in 2 *** the 6 patients,3 survived,2 died,and 1 was lost to *** locations of the ABFs were as follows:1 in the ascending aorta;1 in the aortic arch;2 in the aortic arch leading to the descending aorta;and 2 in the descending *** were directly confirmed by CT in 4/6(67%)***-graft dirty fat(4/6,67%)and peri-graft ring enhancement(3/6,50%)were associated with graft infection,endoleaks and pseudoaneurysms were associated with hemoptysis(2/6,33%).CONCLUSION Asymptomatic ABF after thoracic aortic surgery can be confirmed on chest *** is useful for the diagnosis of ABF and its complications.

关键词： Peri-graft air Aortobronchial fistula Chest computed tomography Postoperative Thoracic endovascular aortic repair Complication Thoracic aorta surgery

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Optical redox imaging of ANT1-de-cient muscles

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Journal of Innovative Optical Health Sciences 2024年第1期17卷 135-140页

作者： He N.Xu Ryan M.Morrow Min Feng Huaqing Zhao Douglas Wallace Lin Z.Li Britton Chance Laboratory of Redox Imaging Department of radiology Perelman School of Medicine University of Pennsylvania PhiladelphiaPA 19104USA Center for Mitochondrial and Epigenomic Medicine Children's Hospital of Philadelphia Research Institute Philadelphia PA 19104USA Center for biostatistics and epidemiology Lewis Katz School of Medicine at Temple University Philadelphia PA 19140USA

Adenine nucleotide translocator(ANT)is a mitochondrial protein involved in the exchange of ADP and ATP across the mitochondrial inner *** plays a crucial role in cellular energy metabolism by facilitating the transport of ATP synthesized within the mitochondria to the *** isoform ANT1 predominately expresses in cardiac and skeletal *** or dysregulation in ANT1 have been implicated in various mitochondrial disorders and neuromuscular *** aimed to examine whether ANT1 deletion may affect mitochondrial redox state in our established ANT1-de-cient *** and quadriceps resected from age-matched wild type(WT)and ANT1-de-cient mice were snap-frozen in liquid *** Chance redox scanner was utilized to perform 3D optical redox *** sample underwent scanning across 3–5 *** averaging analysis showed no signi-cant differences in the redox indices(NADH,flavin adenine dinucleotide containing-flavoproteins Fp,and the redox ratio Fp/(NADH+Fp)between WT and ANT1-de-cient ***,quadriceps had higher Fp than hearts in both groups(p¼0:0004 and 0.01,respectively).Furthermore,the quadriceps were also more oxidized(a higher redox ratio)than hearts in WT group(p¼0:004).NADH levels were similar in all *** data suggest that under non-stressful physical condition,the ANT1-de-cient muscle cells were in the same mitochondrial state as WT ones and that the signi-cant difference in the mitochondrial redox state between quadriceps and hearts found in WT might be diminished in ANT1-de-cient *** imaging of muscles under physical stress can be conducted in future.

关键词： ANT1 redox ratio flavoproteins

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