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Liu P, Chen MH, Sinks S, Sun P. Are the tests overpowered or underpowered? A unified solution to correctly specify type I errors in design of clinical trials for two sample proportions. Stat Med 2024; 43:1688-1707. [PMID: 38373827 DOI: 10.1002/sim.10005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Revised: 12/16/2023] [Accepted: 12/29/2023] [Indexed: 02/21/2024]
Abstract
As one of the most commonly used data types, methods in testing or designing a trial for binary endpoints from two independent populations are still being developed until recently. However, the power and the minimum required sample size comparisons between different tests may not be valid if their type I errors are not controlled at the same level. In this article, we unify all related testing procedures into a decision framework, including both frequentist and Bayesian methods. Sufficient conditions of the type I error attained at the boundary of hypotheses are derived, which help reduce the magnitude of the exact calculations and lay out a foundation for developing computational algorithms to correctly specify the actual type I error. The efficient algorithms are thus proposed to calculate the cutoff value in a deterministic decision rule and the probability value in a randomized decision rule, such that the actual type I error is under but closest to, or equal to, the intended level, respectively. The algorithm may also be used to calculate the sample size to achieve the prespecified type I error and power. The usefulness of the proposed methodology is further demonstrated in the power calculation for designing superiority and noninferiority trials.
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Affiliation(s)
- Peiran Liu
- Department of Statistics, University of Connecticut, Storrs, Connecticut, USA
| | - Ming-Hui Chen
- Department of Statistics, University of Connecticut, Storrs, Connecticut, USA
| | - Susie Sinks
- Research and Development, Biogen, Cambridge, MA, USA
| | - Peng Sun
- Research and Development, Biogen, Cambridge, MA, USA
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Ma Z, Chen MH. A Bayesian model-based reduced major axis regression. Biom J 2024; 66:e2300279. [PMID: 38576312 DOI: 10.1002/bimj.202300279] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Revised: 02/04/2024] [Accepted: 02/16/2024] [Indexed: 04/06/2024]
Abstract
Reduced major axis (RMA) regression, widely used in the fields of zoology, botany, ecology, biology, spectroscopy, and among others, outweighs the ordinary least square regression by relaxing the assumption that the covariates are without measurement errors. A Bayesian implementation of the RMA regression is presented in this paper, and the equivalence of the estimates of the parameters under the Bayesian and the frequentist frameworks is proved. This model-based Bayesian RMA method is advantageous since the posterior estimates, the standard deviations, as well as the credible intervals of the estimates can be obtained through Markov chain Monte Carlo methods directly. In addition, it is straightforward to extend to the multivariate RMA case. The performance of the Bayesian RMA approach is evaluated in the simulation study, and, finally, the proposed method is applied to analyze a dataset in the plantation.
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Affiliation(s)
- Zhihua Ma
- Department of Statistics, Shenzhen University, Shenzhen, China
| | - Ming-Hui Chen
- Department of Statistics, University of Connecticut, Storrs, Connecticut, USA
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Chen CC, Huang CY, Wu JY, Liu MY, Chuang MH, Liu TH, Tsai YW, Hsu WH, Huang PY, Chen MH, Liu SY, Lee MC, Hung KC, Lai CC, Yang IN. Clinical effectiveness of oral antiviral agents for treating non-hospitalized COVID-19 patients with chronic kidney disease. Expert Rev Anti Infect Ther 2024:1-8. [PMID: 38525673 DOI: 10.1080/14787210.2024.2334052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2023] [Accepted: 02/13/2024] [Indexed: 03/26/2024]
Abstract
OBJECTIVES This study examined the effectiveness of nirmatrelvir plus ritonavir (NMV-r) and molnupiravir (MOV) in treating COVID-19 among chronic kidney disease (CKD) patients. METHODS This retrospective cohort study, using the TriNetX research network, identified stage 3-5 CKD and end-stage kidney disease (ESKD) patients with non-hospitalized COVID-19 between 1 January 2022, and 31 May 2023. Propensity score matching (PSM) was used to compare patients on NMV-r or MOV (antiviral group) against those not receiving these treatments (control group). The primary composite outcome was the cumulative hazard ratio (HR) for all-cause hospitalization or death within the 30-day follow-up. RESULTS After PSM, two balanced cohorts of 6,275 patients each were established. The antiviral group exhibited a lower incidence of all-cause hospitalization or mortality (5.93% vs. 9.53%; HR: 0.626; 95% CI: 0.550-0.713) than controls. Additionally, antiviral recipients were associated with a lower risk of all-cause hospitalization (HR: 0.679; 95% CI: 0.594-0.777) and mortality (HR: 0.338; 95% CI: 0.227-0.504). The beneficial effects of antiviral agents were consistent across sex, age, vaccination status, antiviral type, and CKD stage. CONCLUSION Oral antiviral agents could be associated with lower rates of all-cause hospitalization or death among non-hospitalized COVID-19 patients with CKD.
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Affiliation(s)
- Chia-Chen Chen
- Endocrinology and Metabolism, Department of Internal Medicine, Chi Mei Medical Center, Liouying, Tainan, Taiwan
| | - Chi-Ya Huang
- Division of Nephrology, Department of Internal Medicine, Chi Mei Medical Center, Tainan, Taiwan
| | - Jheng-Yan Wu
- Department of Nutrition, Chi Mei Medical Center, Tainan, Taiwan
- Department of Public Health, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Mei-Yuan Liu
- Department of Nutrition, Chi Mei Medical Center, Tainan, Taiwan
- Department of Nutrition and Health Sciences, Chang Jung Christian University, Tainan, Taiwan
- Department of Food Nutrition, Chung Hwa University of Medical Technology, Tainan, Taiwan
- Department of Health and Nutrition, Chia Nan University of Pharmacy & Science, Tainan, Taiwan
| | - Min-Hsiang Chuang
- Division of Nephrology, Department of Internal Medicine, Chi Mei Medical Center, Tainan, Taiwan
| | - Ting-Hui Liu
- Department of Psychiatry, Chi Mei Medical Center, Tainan, Taiwan
| | - Ya-Wen Tsai
- Center of Integrative Medicine, Chi Mei Medical Center, Tainan, Taiwan
| | - Wan-Hsuan Hsu
- Department of Internal Medicine, Chi Mei Medical Center, Tainan, Taiwan
| | - Po-Yu Huang
- Department of Internal Medicine, Chi Mei Medical Center, Tainan, Taiwan
| | - Ming-Hui Chen
- Nursing Department, Chi Mei Medical Center, Tainan, Taiwan
| | - Su-Yen Liu
- Nursing Department, Chi Mei Medical Center, Tainan, Taiwan
| | - Mei-Chuan Lee
- Department of Public Health, College of Medicine, National Cheng Kung University, Tainan, Taiwan
- Department of Pharmacy, Chi Mei Medical Centre, Tainan, Taiwan
| | - Kuo-Chuan Hung
- Department of Anesthesiology, Chi Mei Medical Center, Tainan, Taiwan
- School of Medicine, College of Medicine, National Sun Yat-sen University, Kaohsiung, Taiwan
| | - Chih-Cheng Lai
- School of Medicine, College of Medicine, National Sun Yat-sen University, Kaohsiung, Taiwan
- Division of Hospital Medicine, Department of Internal Medicine, Chi Mei Medical Center, Tainan, Taiwan
| | - I-Ning Yang
- Division of Nephrology, Department of Internal Medicine, Chi Mei Medical Center, Tainan, Taiwan
- Institute of Clinical Pharmacy and Pharmaceutical Sciences, College of Medicine, National Cheng Kung University, Tainan, Taiwan
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Zhu JJ, Huang FY, Chen H, Zhang YL, Chen MH, Wu RH, Dai SZ, He GS, Tan GH, Zheng WP. Autocrine phosphatase PDP2 inhibits ferroptosis by dephosphorylating ACSL4 in the Luminal A Breast Cancer. PLoS One 2024; 19:e0299571. [PMID: 38466744 PMCID: PMC10927110 DOI: 10.1371/journal.pone.0299571] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2023] [Accepted: 02/13/2024] [Indexed: 03/13/2024] Open
Abstract
Phosphatases can dephosphorylate phosphorylated kinases, leading to their inactivation, and ferroptosis is a type of cell death. Therefore, our aim is to identify phosphatases associated with ferroptosis by analyzing the differentially expressed genes (DEGs) of the Luminal A Breast Cancer (LumABC) cohort from the Cancer Genome Atlas (TCGA). An analysis of 260 phosphatase genes from the GeneCard database revealed that out of the 28 DEGs with high expression, only the expression of pyruvate dehydrogenase phosphatase 2 (PDP2) had a significant correlation with patient survival. In addition, an analysis of DEGs using gene ontology, Kyoto Encyclopedia of Genes and Genomes and gene set enrichment analysis revealed a significant variation in the expression of ferroptosis-related genes. To further investigate this, we analyzed 34 ferroptosis-related genes from the TCGA-LumABC cohort. The expression of long-chain acyl-CoA synthetase 4 (ACSL4) was found to have the highest correlation with the expression of PDP2, and its expression was also inversely proportional to the survival rate of patients. Western blot experiments using the MCF-7 cell line showed that the phosphorylation level of ACSL4 was significantly lower in cells transfected with the HA-PDP2 plasmid, and ferroptosis was correspondingly reduced (p < 0.001), as indicated by data from flow cytometry detection of membrane-permeability cell death stained with 7-aminoactinomycin, lipid peroxidation, and Fe2+. Immunoprecipitation experiments further revealed that the phosphorylation level of ACSL4 was only significantly reduced in cells where PDP2 and ACSL4 co-precipitated. These findings suggest that PDP2 may act as a phosphatase to dephosphorylate and inhibit the activity of ACSL4, which had been phosphorylated and activated in LumABC cells. Further experiments are needed to confirm the molecular mechanism of PDP2 inhibiting ferroptosis.
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Affiliation(s)
- Jun-Jie Zhu
- Department of Breast and Thyroid Surgery, The Second Affiliated Hospital and Key Laborato1y of Tropical Translational Medicine of Ministry of Education & School of Tropical Medicine, Hainan Medical University, Haikou, China
| | - Feng-Ying Huang
- Department of Breast and Thyroid Surgery, The Second Affiliated Hospital and Key Laborato1y of Tropical Translational Medicine of Ministry of Education & School of Tropical Medicine, Hainan Medical University, Haikou, China
| | - Hengyu Chen
- Department of Breast and Thyroid Surgery, The Second Affiliated Hospital and Key Laborato1y of Tropical Translational Medicine of Ministry of Education & School of Tropical Medicine, Hainan Medical University, Haikou, China
| | - Yun-long Zhang
- Department of Breast and Thyroid Surgery, The Second Affiliated Hospital and Key Laborato1y of Tropical Translational Medicine of Ministry of Education & School of Tropical Medicine, Hainan Medical University, Haikou, China
| | - Ming-Hui Chen
- Department of Breast and Thyroid Surgery, The Second Affiliated Hospital and Key Laborato1y of Tropical Translational Medicine of Ministry of Education & School of Tropical Medicine, Hainan Medical University, Haikou, China
| | - Ri-Hong Wu
- Department of Breast and Thyroid Surgery, The Second Affiliated Hospital and Key Laborato1y of Tropical Translational Medicine of Ministry of Education & School of Tropical Medicine, Hainan Medical University, Haikou, China
| | - Shu-Zhen Dai
- Department of Breast and Thyroid Surgery, The Second Affiliated Hospital and Key Laborato1y of Tropical Translational Medicine of Ministry of Education & School of Tropical Medicine, Hainan Medical University, Haikou, China
| | - Gui-Sheng He
- Department of Breast and Thyroid Surgery, The Second Affiliated Hospital and Key Laborato1y of Tropical Translational Medicine of Ministry of Education & School of Tropical Medicine, Hainan Medical University, Haikou, China
| | - Guang-Hong Tan
- Department of Breast and Thyroid Surgery, The Second Affiliated Hospital and Key Laborato1y of Tropical Translational Medicine of Ministry of Education & School of Tropical Medicine, Hainan Medical University, Haikou, China
| | - Wu-Ping Zheng
- Department of Breast and Thyroid Surgery, The Second Affiliated Hospital and Key Laborato1y of Tropical Translational Medicine of Ministry of Education & School of Tropical Medicine, Hainan Medical University, Haikou, China
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Walburn T, Chen MH, Loffredo M, McMahon E, Orio PF, Nguyen PL, D'Amico AV, Sayan M. Secondary analysis of late major gastrointestinal and genitourinary toxicities in unfavorable-risk prostate cancer patients receiving docetaxel: Insights from a randomized trial. Cancer 2024. [PMID: 38427287 DOI: 10.1002/cncr.35274] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Revised: 02/08/2024] [Accepted: 02/09/2024] [Indexed: 03/02/2024]
Abstract
BACKGROUND This study sought to evaluate the late toxicity associated with neoadjuvant and concurrent docetaxel and radiation therapy in patients with prostate cancer. METHODS A secondary analysis was performed of the phase 3 multicenter randomized trial (Dana-Farber Cancer Institute 05-043) including 350 patients with nonmetastatic unfavorable-risk prostate cancer. Patients were randomized 1:1 to receive androgen deprivation therapy, radiation therapy, and docetaxel versus androgen deprivation therapy and radiation therapy. The study assessed the cumulative incidence rates of grade 2 and grade 3 or higher gastrointestinal, genitourinary, and sexual toxicity. A multivariable Fine and Gray's competing risks regression model adjusted for age at randomization and pelvic lymph node radiation therapy was used to evaluate the treatment effect of docetaxel on time to late genitourinary and gastrointestinal toxicities. RESULTS The study included 338 patients who primarily had minimal or no comorbidity (74.9%) and median age 66 years (interquartile range: 61,71). At a median follow-up of 10.2 years, docetaxel was not associated with increased risk of any grade 3 or higher (adjusted hazard ratio [AHR], 0.98; 95% confidence interval [CI], 0.36-2.67; p = .96) or grade 2 gastrointestinal (p = .75), genitourinary (p = .44), and sexual (p = .29) toxicity. Age was associated with increased grade 3 or higher (AHR, 1.08; 95% CI, 1.01-1.16; p = .03) and grade 2 gastrointestinal toxicity (AHR, 1.11; 95% CI, 1.03-1.20; p = .005). A nonsignificant trend (p = .09) toward increased late grade 3 or higher toxicity was observed for pelvic radiation therapy use. CONCLUSIONS Docetaxel combined with radiotherapy has an acceptable long-term toxicity profile.
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Affiliation(s)
- Tyler Walburn
- Department of Radiation Oncology, Brigham and Women's Hospital and Dana-Farber Cancer Institute, Boston, Massachusetts, USA
| | - Ming-Hui Chen
- Department of Statistics, University of Connecticut, Storrs, Connecticut, USA
| | - Marian Loffredo
- Department of Radiation Oncology, Brigham and Women's Hospital and Dana-Farber Cancer Institute, Boston, Massachusetts, USA
| | - Elizabeth McMahon
- Department of Radiation Oncology, Brigham and Women's Hospital and Dana-Farber Cancer Institute, Boston, Massachusetts, USA
| | - Peter F Orio
- Department of Radiation Oncology, Brigham and Women's Hospital and Dana-Farber Cancer Institute, Boston, Massachusetts, USA
| | - Paul L Nguyen
- Department of Radiation Oncology, Brigham and Women's Hospital and Dana-Farber Cancer Institute, Boston, Massachusetts, USA
| | - Anthony V D'Amico
- Department of Radiation Oncology, Brigham and Women's Hospital and Dana-Farber Cancer Institute, Boston, Massachusetts, USA
| | - Mutlay Sayan
- Department of Radiation Oncology, Brigham and Women's Hospital and Dana-Farber Cancer Institute, Boston, Massachusetts, USA
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Cai JH, Chuang CC, Chen MH, Yeh CP, Hsu CY. Differences of bioelectrical impedance in the development and healing phase of pressure ulcers and erythema in mouse model. J Tissue Viability 2024:S0965-206X(24)00025-1. [PMID: 38431432 DOI: 10.1016/j.jtv.2024.02.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Revised: 01/26/2024] [Accepted: 02/24/2024] [Indexed: 03/05/2024]
Abstract
Pressure ulcers (PUs) are economically burdensome medical conditions. Early changes in pressure ulcers are associated with erythema. In this study, bioelectrical impedance was used to measure the differences between PUs and blanchable erythema. We divided 21 ICR mice into three groups: control, 1000 mmHg-1h, and 1000 mmHg-6h. Healthy skin, blanchable erythema, and PUs were induced on the dorsal skin. The results indicated an immediate increase in impedance, resistance, and reactance values in the pressure group after release, followed by a subsequent decrease until two days after release. Compared with the control group, impedance and reactance significantly increased by 30.9% (p < 0.05) and 30.1% (p < 0.01), respectively, in the 6 h-loading group immediately after release. One and two days after release, the 1 h-loading and 6 h-loading groups exhibited significantly different degrees of decline. One day after release, impedance and resistance decreased by 30.2% (p < 0.05) and 19.8% (p < 0.05), respectively, in the 1 h-loading group; while impedance, resistance, and reactance decreased by 39.2% (p < 0.01), 26.8% (p < 0.01), and 45.7% (p < 0.05), respectively, in the 6 h-loading group. Two days after release, in the 1 h-loading group, impedance and resistance decreased by 28.3% (p < 0.05) and 21.7% (p < 0.05), respectively; while in the 6 h-loading group, impedance, resistance, and reactance decreased by 49.8% (p < 0.001), 34.2% (p < 0.001), and 59.8% (p < 0.01), respectively. One and two days after release the pressure group reductions were significantly greater than those in the control group. Additionally, we monitored changes during wound healing. Distinguishing early PUs from blanchable erythema by noninvasive bioelectrical impedance technology may have applications value in early assessment of PUs.
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Affiliation(s)
- J H Cai
- Department of Biomedical Engineering, Chung Yuan Christian University, Chung Pei Road, Chung Li District, Taoyuan City, Taiwan.
| | - C C Chuang
- Department of Biomedical Engineering, Chung Yuan Christian University, Chung Pei Road, Chung Li District, Taoyuan City, Taiwan.
| | - M H Chen
- Department of Biomedical Engineering, Chung Yuan Christian University, Chung Pei Road, Chung Li District, Taoyuan City, Taiwan.
| | - C P Yeh
- Department of Biomedical Engineering, Chung Yuan Christian University, Chung Pei Road, Chung Li District, Taoyuan City, Taiwan.
| | - C Y Hsu
- Department of Physical Medicine and Rehabilitation, Ten-Chan General Hospital, Yanping Road, Chung Li District, Taoyuan City, Taiwan.
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Tilki D, Chen MH, D'Amico AV. Reply to Ugo Giovanni Falagario, Alberto Martini, Francesco Pellegrino, et al.'s Letter to the Editor re: Derya Tilki, Ming-Hui Chen, Jing Wu, et al. Prostate-specific Antigen Level at the Time of Salvage Therapy After Radical Prostatectomy for Prostate Cancer and the Risk of Death. J Clin Oncol 2023;41:2428-35. Eur Urol Oncol 2024; 7:166. [PMID: 37316399 DOI: 10.1016/j.euo.2023.05.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2023] [Accepted: 05/23/2023] [Indexed: 06/16/2023]
Affiliation(s)
- Derya Tilki
- Martini-Klinik Prostate Cancer Center, University Hospital Hamburg Eppendorf, Hamburg, Germany; Department of Urology, University Hospital Hamburg-Eppendorf, Hamburg, Germany; Department of Urology, Koc University Hospital, Istanbul, Turkey.
| | - Ming-Hui Chen
- Department of Statistics, University of Connecticut, Storrs, CT, USA
| | - Anthony V D'Amico
- Department of Radiation Oncology, Brigham and Women's Hospital and Dana Farber Cancer Institute, Boston, MA, USA
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Wu W, Yackel HD, Salner A, Chen MH, Judge MP, Cong X, Xu W. Work-health balance of cancer survivors returning to work: A meta-ethnography. Eur J Oncol Nurs 2024; 68:102482. [PMID: 38070450 DOI: 10.1016/j.ejon.2023.102482] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Revised: 10/17/2023] [Accepted: 11/19/2023] [Indexed: 02/18/2024]
Abstract
PURPOSE This meta-ethnography investigates the multifaceted health-related experiences of cancer survivors returning to work (RTW), recognizing the pivotal role of employment in overall well-being, particularly in the context of increasing cancer cases among working-age adults. METHOD Following the methodology of Noblit and Hare, a comprehensive literature search was conducted from 2013 to 2023 in databases including PubMed, Scopus, CINAHL, PsycINFO, and Embase. Qualitative studies assessing cancer survivors' experiences, motivation, concern, resilience, and need in the process of RTW were identified. Eligible studies were assessed for quality using the Critical Appraisal Skills Program Checklist, and their findings were subsequently synthesized. RESULTS Seventeen studies were included for analysis. The finding revealed five key themes: motivations (voluntary and involuntary), cancer-related concerns, resilience, needs for cancer healthcare support, and workplace accommodation. Voluntarily RTW was primarily linked to desires of normalcy, while involuntary RTW was often financially driven. Cancer survivors often face physical, psychological, and social challenges in the RTW process. Resilience played a crucial role in their readaptation to the workplace. Participants expressed the need for additional guidance from healthcare providers and tailored support from the workplace to facilitate a smoother RTW experience. CONCLUSION Cancer survivors aspire to be actively engaged, have their specific needs addressed, and achieve success in their return-to-work endeavors. Occupational guidance and accommodation from healthcare providers and employers play a pivotal role in empowering survivors to balance cancer and work, facilitating the return-to-work process, and enhancing the quality of survivorship.
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Affiliation(s)
- Weizi Wu
- School of Nursing, University of Connecticut, Storrs, CT, 06269, USA
| | | | - Andrew Salner
- Hartford HealthCare Cancer Institute, Hartford, CT, 06106, USA
| | - Ming-Hui Chen
- Department of Statistics, University of Connecticut, Storrs, CT, 06269, USA
| | - Michelle P Judge
- School of Nursing, University of Connecticut, Storrs, CT, 06269, USA
| | - Xiaomei Cong
- Yale University School of Nursing, Orange, CT, 06477, USA
| | - Wanli Xu
- School of Nursing, University of Connecticut, Storrs, CT, 06269, USA.
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Zhao T, Chang X, Biswas SK, Balsbaugh JL, Liddle J, Chen MH, Matson AP, Alder NN, Cong X. Pain/Stress, Mitochondrial Dysfunction and Neurodevelopment in Preterm Infants. Dev Neurosci 2024:000536509. [PMID: 38286121 DOI: 10.1159/000536509] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2023] [Accepted: 01/10/2024] [Indexed: 01/31/2024] Open
Abstract
Introduction Preterm infants experience tremendous early life pain/stress during their neonatal intensive care unit (NICU) hospitalization, which impacts their neurodevelopmental outcomes. Mitochondrial function/dysfunction may interface between perinatal stress events and neurodevelopment. Nevertheless, the specific proteins or pathways linking mitochondrial functions to pain-induced neurodevelopmental outcomes in infants are remain unidentified. Our study aims to investigate the associations among pain/stress, proteins associated with mitochondrial function/dysfunction, and neurobehavioral responses in preterm infants. Methods We conducted a prospective cohort study, enrolling 33 preterm infants between September 2017 and July 2022 at two affiliated NICUs located in Hartford and Farmington, CT. NICU Network Neurobehavioral Scale (NNNS) datasets were evaluated to explore potential association with neurobehavioral outcomes. The daily pain/stress experienced by infant's during their NICU stay was documented. At 36-38 weeks post-menstrual age (PMA), neurobehavioral outcomes were evaluated using the NNNS and buccal swabs were collected for further analysis. Mass spectrometry-based proteomics was conducted on epithelial cells obtained from buccal swabs to evaluate protein expression level. Lasso statistical methods were conducted to study the association between protein abundance and infants' NNNS summary scores. Multiple linear regression and Gene Ontology (GO) enrichment analyses were performed to examine how clinical characteristics and neurodevelopmental outcomes may be associated with protein levels and underlying molecular pathways. Results During NICU hospitalization, preterm premature rupture of membrane (PPROM) were negatively associated with neurobehavioral outcomes. The protein functions including leptin receptor binding activity, glutathione disulfide oxidoreductase activity and response to oxidative stress, lipid metabolism, phosphate and proton transmembrane transporter activity were negatively associated with neurobehavioral outcomes, in the contrast, cytoskeletal regulation, epithelial barrier and protection function were found to be associated with the optimal neurodevelopmental outcomes. In addition, mitochondrial function associated proteins including SPRR2A, PAIP1, S100A3, MT-CO2, PiC, GLRX, PHB2, and BNIPL-2 demonstrated positive association with favorable neurodevelopmental outcomes, while proteins of ABLIM1, UNC45A, Keratins, MUC1, and CYB5B showed positive association with adverse neurodevelopmental outcomes. Conclusion Mitochondrial function-related proteins were observed to be associated with early life pain/stress and neurodevelopmental outcomes in infants. Large-scale studies with longitudinal datasets are warranted. Buccal proteins could be used to predict potential neurobehavioral outcomes.
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Kiernan PA, Day CA, Berkowsky RS, Zaleski AL, Gao S, Taylor BA, Santos LP, Panza G, Kramarz M, McCormick K, Thompson PD, Fernandez AB, Chen MH, Pescatello LS. Reliability and Time Course of Postexercise Hypotension during Exercise Training among Adults with Hypertension. J Cardiovasc Dev Dis 2024; 11:42. [PMID: 38392256 PMCID: PMC10889392 DOI: 10.3390/jcdd11020042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2023] [Revised: 01/25/2024] [Accepted: 01/25/2024] [Indexed: 02/24/2024] Open
Abstract
Postexercise hypotension (PEH), or the immediate decrease in blood pressure (BP) lasting for 24 h following an exercise bout, is well-established; however, the influence of exercise training on PEH dynamics is unknown. This study investigated the reliability and time course of change of PEH during exercise training among adults with hypertension. PEH responders (n = 10) underwent 12 weeks of aerobic exercise training, 40 min/session at moderate-to-vigorous intensity for 3 d/weeks. Self-measured BP was used to calculate PEH before and for 10 min after each session. The intraclass correlation coefficient (ICC) and Akaike Information Criterion (AIC) determined PEH reliability and goodness-of-fit for each week, respectively. Participants were obese (30.6 ± 4.3 kg∙m-2), middle-aged (57.2 ± 10.5 years), and mostly men (60%) with stage I hypertension (136.5 ± 12.1/83.4 ± 6.7 mmHg). Exercise training adherence was 90.6 ± 11.8% with 32.6 ± 4.2 sessions completed. PEH occurred in 89.7 ± 8.3% of these sessions with BP reductions of 9.3 ± 13.1/3.2 ± 6.8 mmHg. PEH reliability was moderate (ICC ~0.6). AIC analysis revealed a stabilization of maximal systolic and diastolic BP reductions at 3 weeks and 10 weeks, respectively. PEH persisted throughout exercise training at clinically meaningful levels, suggesting that the antihypertensive effects of exercise training may be largely due to PEH. Further studies in larger samples and under ambulatory conditions are needed to confirm these novel findings.
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Affiliation(s)
- Peter A Kiernan
- Department of Kinesiology, University of Connecticut, Storrs, CT 06269, USA
| | - Christina A Day
- Department of Kinesiology, University of Connecticut, Storrs, CT 06269, USA
| | - Rachel S Berkowsky
- Department of Kinesiology, University of Connecticut, Storrs, CT 06269, USA
| | | | - Simiao Gao
- Department of Kinesiology, University of Connecticut, Storrs, CT 06269, USA
| | | | - Lucas P Santos
- Hospital de Clínicas de Porto Alegre, Porto Alegre 90035-903, Brazil
| | | | - Melody Kramarz
- Department of Kinesiology, University of Connecticut, Storrs, CT 06269, USA
| | - Kyle McCormick
- Department of Kinesiology, University of Connecticut, Storrs, CT 06269, USA
| | | | | | - Ming-Hui Chen
- Department of Kinesiology, University of Connecticut, Storrs, CT 06269, USA
| | - Linda S Pescatello
- Department of Kinesiology, University of Connecticut, Storrs, CT 06269, USA
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Yang WJ, Xu M, Zhang J, Zhou F, Le ZF, Tong WJ, Song HY, Jin ZH, Cheng QG, Zhou JP, Gao Y, Zhai ZJ, Hu HJ, Chen MH, Yin H, Wang J, Hu DM. Morphological and phylogenetic analyses reveal a new species of Anthracophyllum (Omphalotaceae, Agaricales) in Zhejiang Province, China. Arch Microbiol 2024; 206:63. [PMID: 38217700 DOI: 10.1007/s00203-023-03748-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Revised: 11/15/2023] [Accepted: 11/15/2023] [Indexed: 01/15/2024]
Abstract
During the investigations of macrofungi resources in Zhejiang Province, China, an interesting wood rot fungus was collected. Based on morphological and molecular phylogenetic studies, it is described as a new species, Anthracophyllum sinense. A. sinense is characterized by its sessile, charcoal black and pleurotoid pileus, sparse lamellae occasionally branching, clavate basidia with long sterigmata [(3-)6-7(-8) μm], and non-heteromorphous cystidia. A. sinense establishes a separate lineage close to A. archeri and A. lateritium in the phylogenetic tree.
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Affiliation(s)
- Wen-Juan Yang
- Bioengineering and Technological Research Centre for Edible and Medicinal Fungi, Jiangxi Agricultural University, 1101 Zhimin Road, Nanchang, 330045, China
- Jiangxi Key Laboratory for Conservation and Utilization of Fungal Resources, Jiangxi Agricultural University, 1101 Zhimin Road, Nanchang, 330045, China
- College of Bioscience and Bioengineering, Jiangxi Agricultural University, 1101 Zhimin Road, Nanchang, 330045, China
| | - Miao Xu
- Jiangxi Engineering Research Center for Comprehensive Development of Forest Fungal Resources, Jiangxi Environmental Engineering Vocational College, Ganzhou, China
| | - Jing Zhang
- General Station for Forestry Technology Extension of Taizhou City, Zhejiang, Taizhou, 318000, Zhejiang, China
| | - Fan Zhou
- Bioengineering and Technological Research Centre for Edible and Medicinal Fungi, Jiangxi Agricultural University, 1101 Zhimin Road, Nanchang, 330045, China
- Jiangxi Key Laboratory for Conservation and Utilization of Fungal Resources, Jiangxi Agricultural University, 1101 Zhimin Road, Nanchang, 330045, China
- College of Bioscience and Bioengineering, Jiangxi Agricultural University, 1101 Zhimin Road, Nanchang, 330045, China
| | - Zhi-Fang Le
- Ministry of Ecology and Environment of the People's Republic of China, Nanjing Institute of Environmental Sciences, Nanjing, 210042, China
| | - Wen-Jun Tong
- Ministry of Ecology and Environment of the People's Republic of China, Nanjing Institute of Environmental Sciences, Nanjing, 210042, China
| | - Hai-Yan Song
- Bioengineering and Technological Research Centre for Edible and Medicinal Fungi, Jiangxi Agricultural University, 1101 Zhimin Road, Nanchang, 330045, China.
- Key Laboratory of Crop Physiology, Ecology and Genetic Breeding, (Jiangxi Agricultural University), Ministry of Education of the P.R. China, 1101 Zhimin Road, Nanchang, 330045, China.
| | - Zhuo-Han Jin
- Bioengineering and Technological Research Centre for Edible and Medicinal Fungi, Jiangxi Agricultural University, 1101 Zhimin Road, Nanchang, 330045, China
- Jiangxi Key Laboratory for Conservation and Utilization of Fungal Resources, Jiangxi Agricultural University, 1101 Zhimin Road, Nanchang, 330045, China
- College of Bioscience and Bioengineering, Jiangxi Agricultural University, 1101 Zhimin Road, Nanchang, 330045, China
| | - Qiu-Ge Cheng
- Bioengineering and Technological Research Centre for Edible and Medicinal Fungi, Jiangxi Agricultural University, 1101 Zhimin Road, Nanchang, 330045, China
- Jiangxi Key Laboratory for Conservation and Utilization of Fungal Resources, Jiangxi Agricultural University, 1101 Zhimin Road, Nanchang, 330045, China
- College of Bioscience and Bioengineering, Jiangxi Agricultural University, 1101 Zhimin Road, Nanchang, 330045, China
| | - Jian-Ping Zhou
- Bioengineering and Technological Research Centre for Edible and Medicinal Fungi, Jiangxi Agricultural University, 1101 Zhimin Road, Nanchang, 330045, China
- Jiangxi Key Laboratory for Conservation and Utilization of Fungal Resources, Jiangxi Agricultural University, 1101 Zhimin Road, Nanchang, 330045, China
- College of Bioscience and Bioengineering, Jiangxi Agricultural University, 1101 Zhimin Road, Nanchang, 330045, China
| | - Yang Gao
- Bioengineering and Technological Research Centre for Edible and Medicinal Fungi, Jiangxi Agricultural University, 1101 Zhimin Road, Nanchang, 330045, China
- Jiangxi Key Laboratory for Conservation and Utilization of Fungal Resources, Jiangxi Agricultural University, 1101 Zhimin Road, Nanchang, 330045, China
- College of Bioscience and Bioengineering, Jiangxi Agricultural University, 1101 Zhimin Road, Nanchang, 330045, China
| | - Zhi-Jun Zhai
- Bioengineering and Technological Research Centre for Edible and Medicinal Fungi, Jiangxi Agricultural University, 1101 Zhimin Road, Nanchang, 330045, China
- Jiangxi Key Laboratory for Conservation and Utilization of Fungal Resources, Jiangxi Agricultural University, 1101 Zhimin Road, Nanchang, 330045, China
- College of Bioscience and Bioengineering, Jiangxi Agricultural University, 1101 Zhimin Road, Nanchang, 330045, China
| | - Hai-Jing Hu
- Bioengineering and Technological Research Centre for Edible and Medicinal Fungi, Jiangxi Agricultural University, 1101 Zhimin Road, Nanchang, 330045, China
- Jiangxi Key Laboratory for Conservation and Utilization of Fungal Resources, Jiangxi Agricultural University, 1101 Zhimin Road, Nanchang, 330045, China
- College of Bioscience and Bioengineering, Jiangxi Agricultural University, 1101 Zhimin Road, Nanchang, 330045, China
| | - Ming-Hui Chen
- Bioengineering and Technological Research Centre for Edible and Medicinal Fungi, Jiangxi Agricultural University, 1101 Zhimin Road, Nanchang, 330045, China
- Jiangxi Key Laboratory for Conservation and Utilization of Fungal Resources, Jiangxi Agricultural University, 1101 Zhimin Road, Nanchang, 330045, China
- College of Bioscience and Bioengineering, Jiangxi Agricultural University, 1101 Zhimin Road, Nanchang, 330045, China
| | - Hua Yin
- Bioengineering and Technological Research Centre for Edible and Medicinal Fungi, Jiangxi Agricultural University, 1101 Zhimin Road, Nanchang, 330045, China
- Jiangxi Key Laboratory for Conservation and Utilization of Fungal Resources, Jiangxi Agricultural University, 1101 Zhimin Road, Nanchang, 330045, China
| | - Jiang Wang
- School of Life Sciences, Taizhou University, Taizhou, 318000, China
| | - Dian-Ming Hu
- Bioengineering and Technological Research Centre for Edible and Medicinal Fungi, Jiangxi Agricultural University, 1101 Zhimin Road, Nanchang, 330045, China.
- Jiangxi Key Laboratory for Conservation and Utilization of Fungal Resources, Jiangxi Agricultural University, 1101 Zhimin Road, Nanchang, 330045, China.
- College of Bioscience and Bioengineering, Jiangxi Agricultural University, 1101 Zhimin Road, Nanchang, 330045, China.
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Brown J, Chang X, Matson A, Lainwala S, Chen MH, Cong X, Casavant SG. Health disparities in preterm births. Front Public Health 2023; 11:1275776. [PMID: 38162611 PMCID: PMC10757361 DOI: 10.3389/fpubh.2023.1275776] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2023] [Accepted: 11/21/2023] [Indexed: 01/03/2024] Open
Abstract
Introduction Black African American (B/AA) women have a 2-fold to 3-fold elevated risk compared with non-Hispanic White (W) women for preterm birth. Further, preterm birth is the leading cause of mortality among B/AA infants, and among survivors, preterm infant adverse health outcomes occur disproportionately in B/AA infants. Racial inequities in maternal and infant health continue to pose a public health crisis despite the discovery >100 years ago. The purpose of this study was to expand on reported preterm infant outcome disparities. A life-course approach, accumulation of lifelong stress, including discrimination, may explain social factors causing preterm birth rate and outcome inequities in B/AA mothers. Methods Anthropometric measures and clinical treatment information for 197 consented participants were milled from electronic health records across 4 years. The Neonatal Infant Stressor Scale was used to tally acute and chronic painful/stressful procedures. Neurobehavioral differences were investigated using the Neonatal Intensive Care Unit (NICU) Network Neurobehavioral Scale. Results B/AA mothers gave birth to preterm infants earlier than W mothers. NICU hospitalization stays were extended more than 2 weeks for the significantly smaller B/AA preterm infants in comparison to the age-matched W preterm infants. A higher number of chronic lifesaving procedures with demonstrated altered stress response patterns were recorded for B/AA preterm infants. Discussion This cross-sectional analysis of preterm birth rates and preterm infant developmental and neurodevelopmental outcomes are presented in the context of NICU stress and pain, with attendant implications for infant mortality and future health disparities. Preterm birth rate and outcome inequities further support the need to develop interventions and policies that will reduce the impact of discrimination and improve social determinants of health for Black, Indigenous, and other People of Color.
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Affiliation(s)
- Judy Brown
- Institute for Systems Genomics, University of Connecticut, Storrs, CT, United States
- School of Nursing, University of Connecticut, Storrs, CT, United States
| | - Xiaolin Chang
- Department of Statistics, University of Connecticut, Storrs, CT, United States
| | - Adam Matson
- Division of Neonatology, Connecticut Children’s Medical Center, Hartford, CT, United States
- Department of Pediatrics, School of Medicine, University of Connecticut, Farmington, CT, United States
| | - Shabnam Lainwala
- Division of Neonatology, Connecticut Children’s Medical Center, Hartford, CT, United States
- Department of Pediatrics, School of Medicine, University of Connecticut, Farmington, CT, United States
| | - Ming-Hui Chen
- Department of Statistics, University of Connecticut, Storrs, CT, United States
| | - Xiaomei Cong
- Institute for Systems Genomics, University of Connecticut, Storrs, CT, United States
- Yale University School of Nursing, Orange, CT, United States
| | - Sharon G. Casavant
- Institute for Systems Genomics, University of Connecticut, Storrs, CT, United States
- School of Nursing, University of Connecticut, Storrs, CT, United States
- Department of Pediatrics, School of Medicine, University of Connecticut, Farmington, CT, United States
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Lei M, Zhang YL, Huang FY, Chen HY, Chen MH, Wu RH, Dai SZ, He GS, Tan GH, Zheng WP. Gankyrin inhibits ferroptosis through the p53/SLC7A11/GPX4 axis in triple-negative breast cancer cells. Sci Rep 2023; 13:21916. [PMID: 38081931 PMCID: PMC10713534 DOI: 10.1038/s41598-023-49136-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2023] [Accepted: 12/04/2023] [Indexed: 12/18/2023] Open
Abstract
Gankyrin is found in high levels in triple-negative breast cancer (TNBC) and has been established to form a complex with the E3 ubiquitin ligase MDM2 and p53, resulting in the degradation of p53 in hepatocarcinoma cells. Therefore, this study sought to determine whether gankyrin could inhibit ferroptosis through this mechanism in TNBC cells. The expression of gankyrin was investigated in relation to the prognosis of TNBC using bioinformatics. Co-immunoprecipitation and GST pull-down assays were then conducted to determine the presence of a gankyrin and MDM2 complex. RT-qPCR and immunoblotting were used to examine molecules related to ferroptosis, such as gankyrin, p53, MDM2, SLC7A11, and GPX4. Additionally, cell death was evaluated using flow cytometry detection of 7-AAD and a lactate dehydrogenase release assay, as well as lipid peroxide C11-BODIPY. Results showed that the expression of gankyrin is significantly higher in TNBC tissues and cell lines, and is associated with a poor prognosis for patients. Subsequent studies revealed that inhibiting gankyrin activity triggered ferroptosis in TNBC cells. Additionally, silencing gankyrin caused an increase in the expression of the p53 protein, without altering its mRNA expression. Co-immunoprecipitation and GST pull-down experiments indicated that gankyrin and MDM2 form a complex. In mouse embryonic fibroblasts lacking both MDM2 and p53, this gankyrin/MDM2 complex was observed to ubiquitinate p53, thus raising the expression of molecules inhibited by ferroptosis, such as SLC7A11 and GPX4. Furthermore, silencing gankyrin in TNBC cells disrupted the formation of the gankyrin/MDM2 complex, hindered the degradation of p53, increased SLC7A11 expression, impeded cysteine uptake, and decreased GPX4 production. Our findings suggest that TNBC cells are able to prevent cell ferroptosis through the gankyrin/p53/SLC7A11/GPX4 signaling pathway, indicating that gankyrin may be a useful biomarker for predicting TNBC prognosis or a potential therapeutic target.
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Affiliation(s)
- Ming Lei
- Department of Breast and Thyroid Surgery, The Second Affiliated Hospital, Hainan Medical University, Haikou, 570311, China
- Key Laboratory of Tropical Translational Medicine of Ministry of Education & School of Tropical Medicine, Hainan Medical University, Haikou, 571199, China
| | - Yun-Long Zhang
- Key Laboratory of Tropical Translational Medicine of Ministry of Education & School of Tropical Medicine, Hainan Medical University, Haikou, 571199, China
| | - Feng-Ying Huang
- Key Laboratory of Tropical Translational Medicine of Ministry of Education & School of Tropical Medicine, Hainan Medical University, Haikou, 571199, China
| | - Heng-Yu Chen
- Department of Breast and Thyroid Surgery, The Second Affiliated Hospital, Hainan Medical University, Haikou, 570311, China
| | - Ming-Hui Chen
- Key Laboratory of Tropical Translational Medicine of Ministry of Education & School of Tropical Medicine, Hainan Medical University, Haikou, 571199, China
| | - Ri-Hong Wu
- Key Laboratory of Tropical Translational Medicine of Ministry of Education & School of Tropical Medicine, Hainan Medical University, Haikou, 571199, China
| | - Shu-Zhen Dai
- Key Laboratory of Tropical Translational Medicine of Ministry of Education & School of Tropical Medicine, Hainan Medical University, Haikou, 571199, China
| | - Gui-Sheng He
- Department of Breast and Thyroid Surgery, The Second Affiliated Hospital, Hainan Medical University, Haikou, 570311, China.
| | - Guang-Hong Tan
- Key Laboratory of Tropical Translational Medicine of Ministry of Education & School of Tropical Medicine, Hainan Medical University, Haikou, 571199, China.
| | - Wu-Ping Zheng
- Department of Breast and Thyroid Surgery, The Second Affiliated Hospital, Hainan Medical University, Haikou, 570311, China.
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14
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Zeng HH, Ma M, Wang YL, Chen MH, Huang DB. Hyperoside attenuates carbon tetrachloride-induced hepatic fibrosis via the poly(ADP-ribose)polymerase-1-high mobility group protein 1 pathway. Eur J Pharmacol 2023; 960:176178. [PMID: 37923159 DOI: 10.1016/j.ejphar.2023.176178] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2023] [Revised: 10/29/2023] [Accepted: 11/01/2023] [Indexed: 11/07/2023]
Abstract
Oxidative stress and inflammation have been implicated in hepatic fibrosis. Antioxidant and anti-inflammatory activities are among the pharmacological effects of hyperoside. This study aimed to evaluate the impact of hyperoside on hepatic fibrosis and elucidate the underlying processes that perpetuate this relationship. The findings indicated that hyperoside significantly protects mouse livers against damage, inflammation, and fibrosis. Specifically, attenuation of hepatic fibrosis is associated with lower expression of HMGB1 protein and reduced expression of Toll-like receptor 4, PARP-1, and nuclear factor-kB (NF-κB) p65 mRNA and protein. Furthermore, hyperoside inhibited the cytoplasmic translocation of HMGB1 and nuclear localization of NF-κB p65 in the hepatic tissues of mice. The results of this study indicate that hyperoside may impose a blocking or reversing effect on hepatic fibrosis; additionally, the corresponding hyperoside-dependent mechanism may be linked to PARP-1-HMGB1 pathway regulation.
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Affiliation(s)
- H H Zeng
- Health Science Center, Hubei Minzu University, Enshi, 445000, China.
| | - M Ma
- Health Science Center, Hubei Minzu University, Enshi, 445000, China.
| | - Y L Wang
- Health Science Center, Hubei Minzu University, Enshi, 445000, China.
| | - M H Chen
- Health Science Center, Hubei Minzu University, Enshi, 445000, China.
| | - D B Huang
- Health Science Center, Hubei Minzu University, Enshi, 445000, China.
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15
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Mertens L, Singh G, Armenian S, Chen MH, Dorfman AL, Garg R, Husain N, Joshi V, Leger KJ, Lipshultz SE, Lopez-Mattei J, Narayan HK, Parthiban A, Pignatelli RH, Toro-Salazar O, Wasserman M, Wheatley J. Multimodality Imaging for Cardiac Surveillance of Cancer Treatment in Children: Recommendations From the American Society of Echocardiography. J Am Soc Echocardiogr 2023; 36:1227-1253. [PMID: 38043984 DOI: 10.1016/j.echo.2023.09.009] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/05/2023]
Affiliation(s)
- Luc Mertens
- Hospital for Sick Children, University of Toronto, Toronto, Ontario, Canada
| | - Gautam Singh
- Children's Hospital of Michigan, Detroit, Michigan; Central Michigan University School of Medicine, Saginaw, Michigan
| | - Saro Armenian
- City of Hope Comprehensive Cancer Center, Duarte, California
| | - Ming-Hui Chen
- Boston Children's Hospital and Dana-Farber Cancer Institute, Boston, Massachusetts
| | - Adam L Dorfman
- University of Michigan, C.S. Mott Children's Hospital, Ann Arbor, Michigan
| | - Ruchira Garg
- Cedars-Sinai Heart Institute, Los Angeles, California
| | | | - Vijaya Joshi
- St. Jude Children's Research Hospital/University of Tennessee College of Medicine, Memphis, Tennessee
| | - Kasey J Leger
- University of Washington, Seattle Children's Hospital, Seattle, Washington
| | - Steven E Lipshultz
- University at Buffalo Jacobs School of Medicine and Biomedical Sciences, Oishei Children's Hospital, Roswell Park Comprehensive Cancer Center, Buffalo, New York
| | | | - Hari K Narayan
- University of California San Diego, Rady Children's Hospital San Diego, San Diego, California
| | - Anitha Parthiban
- Texas Children's Hospital, Baylor College of Medicine, Houston, Texas
| | | | - Olga Toro-Salazar
- Connecticut Children's Medical Center, University of Connecticut School of Medicine, Hartford, Connecticut
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Sayan M, Huang J, Xie W, Chen MH, Loffredo M, McMahon E, Orio P, Nguyen P, D’Amico AV. Risk of Short-Term Prostate-Specific Antigen Recurrence and Failure in Patients With Prostate Cancer: A Secondary Analysis of a Randomized Clinical Trial. JAMA Netw Open 2023; 6:e2336390. [PMID: 37801315 PMCID: PMC10559177 DOI: 10.1001/jamanetworkopen.2023.36390] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Accepted: 08/21/2023] [Indexed: 10/07/2023] Open
Abstract
Importance A shorter time interval to prostate-specific antigen (PSA) failure is associated with worse clinical outcomes; however, specific factors defining this state remain unknown. Objective To evaluate the factors of a short time interval to PSA failure in order to identify patients for treatment escalation randomized clinical trials. Design, Setting, and Participants This secondary analysis of a randomized clinical trial was a secondary analysis of the Dana-Farber Cancer Institute 05-043 trial and included 350 patients with nonmetastatic unfavorable risk prostate cancer (PC). Interventions Patients were randomized 1:1 to receive androgen deprivation therapy (ADT) and radiation therapy (RT) plus docetaxel vs ADT and RT. Main Outcomes and Measures Cumulative incidence rates curves of PSA failure, defined as PSA nadir plus 2 ng/mL or initiation of salvage therapies, and the Fine and Gray competing risks regression was used to assess the prognostic association between these factors and time to PSA failure. Results The study included 350 males who primarily had a good performance status (330 [94.3%] with Eastern Cooperative Oncology Group score of 0), median (range) age of 66 (43-86) years, with 167 (46.6%) having Gleason scores of 8 to 10, and 195 (55.2%) presenting with a baseline PSA of more than 10 ng/mL. After a median (IQR) follow-up of 10.2 (8.0-11.4) years, having a PSA level of 10 ng/mL to 20 ng/mL (subdistribution hazard ratio [sHR], 1.98; 95% CI, 1.28-3.07; P = .002) and a Gleason score of 8 to 10 (sHR, 2.55; 95% CI, 1.63-3.99; P < .001) were associated with a shorter time to PSA failure, and older age (sHR, 0.82; 95% CI, 0.72-0.93; P = .002) was associated with reduced risk for PSA failure after adjusting for other baseline clinical factors. The high-risk category, defined by these 3 factors, was associated with a shorter time to PSA failure (sHR, 2.69; 95% CI, 1.84-3.93; P < .001). Conclusions and Relevance In this secondary analysis of a randomized clinical trial of males with unfavorable risk PC, young age, PSA of 10 ng/mL or more, and a Gleason score of 8 to 10 estimated a shorter time to PSA failure. A subgroup of males at very high-risk for early PSA failure, as defined by our study, may benefit from treatment escalation with androgen receptor signaling inhibitors or cytotoxic chemotherapy and should be the subject of a prospective randomized clinical trial. Trial Registration NCT00116142.
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Affiliation(s)
- Mutlay Sayan
- Department of Radiation Oncology, Brigham and Women’s Hospital and Dana Farber Cancer Institute, Boston, Massachusetts
| | - Jiaming Huang
- Department of Data Sciences, Dana Farber Cancer Institute, Boston, Massachusetts
| | - Wanling Xie
- Department of Data Sciences, Dana Farber Cancer Institute, Boston, Massachusetts
| | - Ming-Hui Chen
- Department of Statistics, University of Connecticut, Storrs
| | - Marian Loffredo
- Department of Radiation Oncology, Brigham and Women’s Hospital and Dana Farber Cancer Institute, Boston, Massachusetts
| | - Elizabeth McMahon
- Department of Radiation Oncology, Brigham and Women’s Hospital and Dana Farber Cancer Institute, Boston, Massachusetts
| | - Peter Orio
- Department of Radiation Oncology, Brigham and Women’s Hospital and Dana Farber Cancer Institute, Boston, Massachusetts
| | - Paul Nguyen
- Department of Radiation Oncology, Brigham and Women’s Hospital and Dana Farber Cancer Institute, Boston, Massachusetts
| | - Anthony V. D’Amico
- Department of Radiation Oncology, Brigham and Women’s Hospital and Dana Farber Cancer Institute, Boston, Massachusetts
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Sabbagh A, Trock B, Partin AW, Wu J, Chen MH, Tilki D, DAmico AV, Mohamad O. Machine Learning for the Prediction of Biochemical Recurrence in Patients Treated with Radical Prostatectomy. Int J Radiat Oncol Biol Phys 2023; 117:e484. [PMID: 37785531 DOI: 10.1016/j.ijrobp.2023.06.1710] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) Biochemical recurrence (BCR) occurs in about 40% of patients with prostate cancer following radical prostatectomy (RP). Our goal was to develop a machine learning model for the prediction of BCR five-years after RP, to improve patient prognostication. MATERIALS/METHODS Patients treated with RP at a tertiary care medical center between 1990 and 2017 were included. A gradient boosted decision trees-based machine learning model modified to handle survival data was trained on 80% of the dataset. The model's performance was evaluated on the remaining 20%. Input variables were age at surgery, prostate specific antigen (PSA) at diagnosis (in ng/mL), pathologic Gleason grade group (GG), pathologic T stage (organ confined disease vs. extracapsular extension (ECE) vs. seminal vesicle invasion (SVI)), lymph node involvement, and surgical margin status. Model performance was assessed using time-dependent area under curve of the receiver operator curve (AUC). RESULTS The full dataset included 11,139 patients, of whom 1,153 (10%) developed BCR. Median age at surgery was 59 and PSA at diagnosis was 5.4 ng/mL. Only 1,080 (9.7%) patients had GG 3, and 707 (6.3%) GG 4 and 5. 1,366 (12%) patients had positive surgical margins and 134 (1.2%) had lymph node involvement. Most patients had organ confined disease with EPE and SVI diagnosed in 2,759 (25%) and 392 (3.5%) patients, respectively. Median follow-up was 5 years and median time to BCR was 4 years. When validated on the hold-out set of 2,228 patients, the model shows a time-dependent AUC of 0.82 (95% CI 0.78 - 0.86) for BCR at t = 5 years. CONCLUSION Our machine learning model can be used to estimate risk of BCR following RP and shows exceptional performance, with implications on patient prognostication and follow-up. We are currently working on validating its performance on an external dataset.
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Affiliation(s)
- A Sabbagh
- University of California San Francisco, San Francisco, CA
| | - B Trock
- Brady Urological Institute at Johns Hopkins Medical Institution, Baltimore, MD
| | - A W Partin
- Brady Urological Institute at Johns Hopkins Medical Institution, Baltimore, MD
| | - J Wu
- University of Rhode Island, Kingston, RI
| | - M H Chen
- University of Connecticut, Storrs, CT
| | - D Tilki
- Martini-Klinik Prostate Cancer Center, University Hospital Hamburg-Eppendorf, Hamburg, Germany
| | - A V DAmico
- Brigham and Women's Hospital, Boston, MA
| | - O Mohamad
- University of California San Francisco, San Francisco, CA
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18
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Sabbagh A, Washington SL, Tilki D, Hong JC, Feng J, Valdes G, Chen MH, Wu J, Huland H, Graefen M, Wiegel T, Böhmer D, Cowan JE, Cooperberg M, Feng FY, Roach M, Trock BJ, Partin AW, D'Amico AV, Carroll PR, Mohamad O. Development and External Validation of a Machine Learning Model for Prediction of Lymph Node Metastasis in Patients with Prostate Cancer. Eur Urol Oncol 2023; 6:501-507. [PMID: 36868922 DOI: 10.1016/j.euo.2023.02.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Revised: 01/10/2023] [Accepted: 02/03/2023] [Indexed: 03/05/2023]
Abstract
BACKGROUND Pelvic lymph node dissection (PLND) is the gold standard for diagnosis of lymph node involvement (LNI) in patients with prostate cancer. The Roach formula, Memorial Sloan Kettering Cancer Center (MSKCC) calculator, and Briganti 2012 nomogram are elegant and simple traditional tools used to estimate the risk of LNI and select patients for PLND. OBJECTIVE To determine whether machine learning (ML) can improve patient selection and outperform currently available tools for predicting LNI using similar readily available clinicopathologic variables. DESIGN, SETTING, AND PARTICIPANTS Retrospective data for patients treated with surgery and PLND between 1990 and 2020 in two academic institutions were used. OUTCOME MEASUREMENTS AND STATISTICAL ANALYSIS We trained three models (two logistic regression models and one gradient-boosted trees-based model [XGBoost]) on data provided from one institution (n = 20267) with age, prostate-specific antigen (PSA) levels, clinical T stage, percentage positive cores, and Gleason scores as inputs. We externally validated these models using data from another institution (n = 1322) and compared their performance to that of the traditional models using the area under the receiver operating characteristic curve (AUC), calibration, and decision curve analysis (DCA). RESULTS AND LIMITATIONS LNI was present in 2563 patients (11.9%) overall, and in 119 patients (9%) in the validation data set. XGBoost had the best performance among all the models. On external validation, its AUC outperformed that of the Roach formula by 0.08 (95% confidence interval [CI] 0.042-0.12), the MSKCC nomogram by 0.05 (95% CI 0.016-0.070), and the Briganti nomogram by 0.03 (95% CI 0.0092-0.051; all p < 0.05). It also had better calibration and clinical utility in terms of net benefit on DCA across relevant clinical thresholds. The main limitation of the study is its retrospective design. CONCLUSIONS Taking all measures of performance together, ML using standard clinicopathologic variables outperforms traditional tools in predicting LNI. PATIENT SUMMARY Determining the risk of cancer spread to the lymph nodes in patients with prostate cancer allows surgeons to perform lymph node dissection only in patients who need it and avoid the side effects of the procedure in those who do not. In this study, we used machine learning to develop a new calculator to predict the risk of lymph node involvement that outperformed traditional tools currently used by oncologists.
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Affiliation(s)
- Ali Sabbagh
- Department of Radiation Oncology, University of California-San Francisco, San Francisco, CA, USA
| | - Samuel L Washington
- Department of Urology, University of California-San Francisco, San Francisco, CA, USA; Department of Epidemiology and Biostatistics, University of California-San Francisco, San Francisco, CA, USA
| | - Derya Tilki
- Martini-Klinik Prostate Cancer Center, University Hospital Hamburg-Eppendorf, Hamburg, Germany; Department of Urology, University Hospital Hamburg-Eppendorf, Hamburg, Germany
| | - Julian C Hong
- Department of Radiation Oncology, University of California-San Francisco, San Francisco, CA, USA
| | - Jean Feng
- Department of Epidemiology and Biostatistics, University of California-San Francisco, San Francisco, CA, USA
| | - Gilmer Valdes
- Department of Radiation Oncology, University of California-San Francisco, San Francisco, CA, USA
| | - Ming-Hui Chen
- Department of Statistics, University of Connecticut, Storrs, CT, USA
| | - Jing Wu
- Department of Computer Science and Statistics, University of Rhode Island, Kingston, RI, USA
| | - Hartwig Huland
- Martini-Klinik Prostate Cancer Center, University Hospital Hamburg-Eppendorf, Hamburg, Germany
| | - Markus Graefen
- Martini-Klinik Prostate Cancer Center, University Hospital Hamburg-Eppendorf, Hamburg, Germany
| | - Thomas Wiegel
- Department of Radio Oncology, University Hospital Ulm, Ulm, Germany
| | - Dirk Böhmer
- Department of Radiation Oncology, Charité University Hospital, Berlin, Germany
| | - Janet E Cowan
- Department of Urology, University of California-San Francisco, San Francisco, CA, USA
| | - Matthew Cooperberg
- Department of Urology, University of California-San Francisco, San Francisco, CA, USA; Department of Epidemiology and Biostatistics, University of California-San Francisco, San Francisco, CA, USA
| | - Felix Y Feng
- Department of Radiation Oncology, University of California-San Francisco, San Francisco, CA, USA; Department of Urology, University of California-San Francisco, San Francisco, CA, USA
| | - Mack Roach
- Department of Radiation Oncology, University of California-San Francisco, San Francisco, CA, USA
| | - Bruce J Trock
- Division of Epidemiology, Brady Urological Institute, Johns Hopkins Medical Institution, Baltimore, MD, USA
| | - Alan W Partin
- Department of Urology, Brady Urological Institute, Johns Hopkins Medical Institution, Baltimore, MD, USA
| | - Anthony V D'Amico
- Department of Radiation Oncology, Brigham and Women's Hospital and Dana Farber Cancer Institute, Boston, MA, USA
| | - Peter R Carroll
- Department of Urology, University of California-San Francisco, San Francisco, CA, USA
| | - Osama Mohamad
- Department of Radiation Oncology, University of California-San Francisco, San Francisco, CA, USA; Department of Urology, University of California-San Francisco, San Francisco, CA, USA.
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19
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Sabbagh A, Tilki D, Partin AW, Trock B, Chen MH, Wu J, DAmico AV, Mohamad O. Machine Learning for the Prediction of Adverse Pathological Outcomes in Patients Treated with Radical Prostatectomy. Int J Radiat Oncol Biol Phys 2023; 117:e484. [PMID: 37785533 DOI: 10.1016/j.ijrobp.2023.06.1709] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) Extracapsular extension (ECE) and seminal vesicle invasion (SVI) are associated with negative oncologic outcomes in patients with prostate cancer. We have developed and validated a machine learning model to more accurately identify patients at risk of these adverse surgical outcomes prior to radical prostatectomy (RP). MATERIALS/METHODS This study included a cohort of patients diagnosed with prostate cancer and treated with RP and lymph node dissection at a tertiary care medical center from 2010 to 2020. An ensemble model using a base gradient-boosted trees-based machine learning model and isotonic calibrators was trained on 80% of the cohort, with 20% held out for validation. The model uses age at surgery, prostate specific antigen level (PSA) at diagnosis, biopsy Gleason grade group, numbers of positive and negative cores on biopsy, and clinical T-stage (cT) as input variables. Model performance was assessed on the hold-out set using the area under the receiver operating curve (AUC). RESULTS The full dataset included 18,729 eligible patients. Median PSA at diagnosis was 7.3 ng/mL. Most patients had clinically organ confined disease (cT1 - cT2) with only 136 (0.7%) having cT3. The most common biopsy Gleason grade group was 2 (7,118 or 38% of patients), with Gleason grade 4 in 1,796 (9.6%), and 5 in 1,064 (5.7%) patients. After RP, 11,931 (64%) of patients had organ confined disease, 4,298 (23%) had ECE, and 2,500 (13%) had SVI. When validated on the hold-out set (n = 3,746), the model had AUCs of 0.79 (95%-CI 0.77 - 0.80), 0.67 (0.65 - 0.69), and 0.83 (0.81 - 0.85) for the prediction of organ confined disease, ECE, and SVI, respectively. CONCLUSION In conclusion, we have developed a machine learning model that predicts individual patient risk of pathologic T-stage. The model can be used to provide more accurate risk assessments and improve surgical treatment planning. We are currently working on externally validating our results on patients from different institutions.
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Affiliation(s)
- A Sabbagh
- University of California San Francisco, San Francisco, CA
| | - D Tilki
- Martini-Klinik Prostate Cancer Center, University Hospital Hamburg-Eppendorf, Hamburg, Germany
| | - A W Partin
- Brady Urological Institute at Johns Hopkins Medical Institution, Baltimore, MD
| | - B Trock
- Brady Urological Institute at Johns Hopkins Medical Institution, Baltimore, MD
| | - M H Chen
- University of Connecticut, Storrs, CT
| | - J Wu
- University of Rhode Island, Kingston, RI
| | - A V DAmico
- Brigham and Women's Hospital, Boston, MA
| | - O Mohamad
- University of California San Francisco, San Francisco, CA
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20
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Tilki D, Chen MH, D'Amico AV. Reply to Z. Mai et al. J Clin Oncol 2023; 41:3957. [PMID: 37267581 DOI: 10.1200/jco.23.00845] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Accepted: 04/19/2023] [Indexed: 06/04/2023] Open
Affiliation(s)
- Derya Tilki
- Derya Tilki, MD, Martini-Klinik Prostate Cancer Center, University Hospital-Hamburg-Eppendorf, Hamburg, Germany, Department of Urology, University Hospital Hamburg-Eppendorf, Hamburg, Germany, Department of Urology, Koc University Hospital, Istanbul, Turkey; Ming-Hui Chen, PhD, Department of Statistics, University of Connecticut, Storrs, CT; and Anthony V. D'Amico, MD, PhD, Department of Radiation Oncology, Brigham and Women's Hospital and Dana Farber Cancer Institute, Boston, MA
| | - Ming-Hui Chen
- Derya Tilki, MD, Martini-Klinik Prostate Cancer Center, University Hospital-Hamburg-Eppendorf, Hamburg, Germany, Department of Urology, University Hospital Hamburg-Eppendorf, Hamburg, Germany, Department of Urology, Koc University Hospital, Istanbul, Turkey; Ming-Hui Chen, PhD, Department of Statistics, University of Connecticut, Storrs, CT; and Anthony V. D'Amico, MD, PhD, Department of Radiation Oncology, Brigham and Women's Hospital and Dana Farber Cancer Institute, Boston, MA
| | - Anthony V D'Amico
- Derya Tilki, MD, Martini-Klinik Prostate Cancer Center, University Hospital-Hamburg-Eppendorf, Hamburg, Germany, Department of Urology, University Hospital Hamburg-Eppendorf, Hamburg, Germany, Department of Urology, Koc University Hospital, Istanbul, Turkey; Ming-Hui Chen, PhD, Department of Statistics, University of Connecticut, Storrs, CT; and Anthony V. D'Amico, MD, PhD, Department of Radiation Oncology, Brigham and Women's Hospital and Dana Farber Cancer Institute, Boston, MA
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21
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Huang SH, Chi P, Huang Y, Wang XJ, Chen MH, Sun YW, Lin HM, Jiang WZ. [Anatomical classification of and laparoscopic surgery for left-sided colorectal cancer with persistent descending mesocolon]. Zhonghua Wei Chang Wai Ke Za Zhi 2023; 26:668-674. [PMID: 37583024 DOI: 10.3760/cma.j.cn441530-20230109-00011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 08/17/2023]
Abstract
Objective: To investigate anatomical morphology and classification of persistent descending mesocolon (PDM) in patients with left-sided colorectal cancer, as well as the safety of laparoscopic radical surgery for these patients. Methods: This is a descriptive study of case series. Relevant clinical data of 995 patients with left colon and rectal cancer who had undergone radical surgery in Fujian Medical University Union Hospital from July 2021 to September 2022 were extracted from the colorectal surgery database of our institution and retrospectively analyzed. Twenty-four (2.4%) were identified as PDM and their imaging data and intra-operative videos were reviewed. We determined the distribution and morphology of the descending colon and mesocolon, and evaluated the feasibility and complications of laparoscopic surgery. We classified PDM according to its anatomical characteristics as follows: Type 0: PDM combined with malrotation of the midgut or persistent ascending mesocolon; Type 1: unfixed mesocolon at the junction between transverse and descending colon; Type 2: PDM with descending colon shifted medially (Type 2A) or to the right side (Type 2B) of the abdominal aorta at the level of the origin of the inferior mesentery artery (IMA); and Type 3: the mesocolon of the descending-sigmoid junction unfixed and the descending colon shifted medially and caudally to the origin of IMA. Results: The diagnosis of PDM was determined based on preoperative imaging findings in 9 of the 24 patients (37.5%) with left-sided colorectal cancer, while the remaining diagnoses were made during intraoperative assessment. Among 24 patients, 22 were male and 2 were female. The mean age was (63±9) years. We classified PDM as follows: Type 0 accounted for 4.2% (1/24); Type 1 for 8.3% (2/24); Types 2A and 2B for 37.5% (9/24) and 25.0% (6/24), respectively; and Type 3 accounted for 25.0% (6/24). All patients with PDM had adhesions of the mesocolon that required adhesiolysis. Additionally, 20 (83.3%) of them had adhesions between the mesentery of the ileum and colon. Twelve patients (50.0%) required mobilization of the splenic flexure. The inferior mesenteric artery branches had a common trunk in 14 patients (58.3%). Twenty-four patients underwent D3 surgery without conversion to laparotomy; the origin of the IMA being preserved in 22 (91.7%) of them. Proximal colon ischemia occurred intraoperatively in two patients (8.3%) who had undergone high ligation at the origin of the IMA. One of these patients had a juxta-anal low rectal cancer and underwent intersphincteric abdominoperineal resection because of poor preoperative anal function. Laparoscopic subtotal colectomy was considered necessary for the other patient. The duration of surgery was (260±100) minutes and the median estimated blood loss was 50 (20-200) mL. The median number of No. 253 lymph nodes harvested was 3 (0-20), and one patient (4.2%) had No.253 nodal metastases. The median postoperative hospital stay was 8 (4-23) days, and the incidence of complications 16.7% (4/24). There were no instances of postoperative colon ischemia or necrosis observed. One patient (4.2%) with stage IIA rectal cancer developed Grade B (Clavien-Dindo III) anastomotic leak and underwent elective ileostomy. The other complications were Grade I-II. Conclusions: PDM is frequently associated with mesenteric adhesions. Our proposed classification can assist surgeons in identifying the descending colon and mesocolon during adhesion lysis in laparoscopic surgery. It is crucial to protect the colorectal blood supply at the resection margin to minimize the need for unplanned extended colectomy, the Hartmann procedure, or permanent stomas.
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Affiliation(s)
- S H Huang
- Department of Colorectal Surgery, Fujian Medical University Union Hospital, Fuzhou 350001, China
| | - P Chi
- Department of Colorectal Surgery, Fujian Medical University Union Hospital, Fuzhou 350001, China
| | - Y Huang
- Department of Colorectal Surgery, Fujian Medical University Union Hospital, Fuzhou 350001, China
| | - X J Wang
- Department of Colorectal Surgery, Fujian Medical University Union Hospital, Fuzhou 350001, China
| | - M H Chen
- Department of Radiology, Fujian Medical University Union Hospital, Fuzhou 350001, China
| | - Y W Sun
- Department of Colorectal Surgery, Fujian Medical University Union Hospital, Fuzhou 350001, China
| | - H M Lin
- Department of Colorectal Surgery, Fujian Medical University Union Hospital, Fuzhou 350001, China
| | - W Z Jiang
- Department of Colorectal Surgery, Fujian Medical University Union Hospital, Fuzhou 350001, China
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22
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Wang YB, Milkey A, Li A, Chen MH, Kuo L, Lewis PO. LoRaD: Marginal likelihood estimation with haste (but no waste). Syst Biol 2023; 72:639-648. [PMID: 36856704 DOI: 10.1093/sysbio/syad007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2022] [Revised: 02/15/2023] [Accepted: 02/21/2023] [Indexed: 03/02/2023] Open
Abstract
The Lowest Radial Distance (LoRaD) method is a modification of the recently introduced Partition-Weighted Kernel method for estimating the marginal likelihood of a model, a quantity important for Bayesian model selection. For analyses involving a fixed tree topology, LoRaD improves upon the Steppingstone or Thermodynamic Integration (Path Sampling) approaches now in common use in phylogenetics because it requires sampling only from the posterior distribution, avoiding the need to sample from a series of ad hoc power posterior distributions, and yet is more accurate than other fast methods such as the Generalized Harmonic Mean (GHM) method. We show that the method performs well in comparison to the Generalized Steppingstone method on an empirical fixed-topology example from molecular phylogenetics involving 180 parameters. The LoRaD method can also be used to obtain the marginal likelihood in the variable-topology case if at least one tree topology occurs with sufficient frequency in the posterior sample to allow accurate estimation of the marginal likelihood conditional on that topology. [Bayesian; marginal likelihood; phylogenetics.].
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Affiliation(s)
- Yu-Bo Wang
- School of Mathematical and Statistical Sciences, Clemson University, Clemson, SC 29634, USA
| | - Analisa Milkey
- Department of Ecology and Evolutionary Biology, University of Connecticut, Storrs, CT 06269, USA
| | - Aolan Li
- Department of Statistics, University of Connecticut, Storrs, CT 06269, USA
| | - Ming-Hui Chen
- Department of Statistics, University of Connecticut, Storrs, CT 06269, USA
| | - Lynn Kuo
- Department of Statistics, University of Connecticut, Storrs, CT 06269, USA
| | - Paul O Lewis
- Department of Ecology and Evolutionary Biology, University of Connecticut, Storrs, CT 06269, USA
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23
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Han Z, Zhang Q, Wang M, Ye K, Chen MH. On efficient posterior inference in normalized power prior Bayesian analysis. Biom J 2023; 65:e2200194. [PMID: 36960489 DOI: 10.1002/bimj.202200194] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2022] [Revised: 11/24/2022] [Accepted: 02/15/2023] [Indexed: 03/25/2023]
Abstract
The power prior has been widely used to discount the amount of information borrowed from historical data in the design and analysis of clinical trials. It is realized by raising the likelihood function of the historical data to a power parameterδ ∈ [ 0 , 1 ] $\delta \in [0, 1]$ , which quantifies the heterogeneity between the historical and the new study. In a fully Bayesian approach, a natural extension is to assign a hyperprior to δ such that the posterior of δ can reflect the degree of similarity between the historical and current data. To comply with the likelihood principle, an extra normalizing factor needs to be calculated and such prior is known as the normalized power prior. However, the normalizing factor involves an integral of a prior multiplied by a fractional likelihood and needs to be computed repeatedly over different δ during the posterior sampling. This makes its use prohibitive in practice for most elaborate models. This work provides an efficient framework to implement the normalized power prior in clinical studies. It bypasses the aforementioned efforts by sampling from the power prior withδ = 0 $\delta = 0$ andδ = 1 $\delta = 1$ only. Such a posterior sampling procedure can facilitate the use of a random δ with adaptive borrowing capability in general models. The numerical efficiency of the proposed method is illustrated via extensive simulation studies, a toxicological study, and an oncology study.
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Affiliation(s)
- Zifei Han
- School of Statistics, University of International Business and Economics, Beijing, China
| | - Qiang Zhang
- School of Statistics, University of International Business and Economics, Beijing, China
| | - Min Wang
- Department of Management Science and Statistics, The University of Texas at San Antonio, San Antonio, Texas, USA
| | - Keying Ye
- Department of Management Science and Statistics, The University of Texas at San Antonio, San Antonio, Texas, USA
| | - Ming-Hui Chen
- Department of Statistics, University of Connecticut, Storrs, Connecticut, USA
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24
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Chen J, Wang Z, Starkweather A, Chen MH, McCauley P, Miao H, Ahn H, Cong X. Pain sensation and gut microbiota profiles in older adults with heart failure. Interdiscip Nurs Res 2023; 2:83-91. [PMID: 37645375 PMCID: PMC10461724 DOI: 10.1097/nr9.0000000000000024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Accepted: 06/21/2023] [Indexed: 08/31/2023]
Abstract
Objectives Patients with heart failure (HF) experience severe pain and may have altered pain sensation; however, the underlying mechanisms of these symptoms are not yet fully understood. Identifying pain sensation and genomic biomarkers of pain in older adults with HF is a critical step toward developing personalized interventions to improve pain management and outcomes. This study aimed to investigate the differences in pain sensation, gut microbiota, self-reported pain, and symptoms in older adults with and without HF. Methods Twenty older adults with HF and age-matched healthy controls (HCs) were recruited in the Northeastern United States. Quantitative sensory testing and conditioned pain modulation were performed on the nondominant upper arm to detect the mechanical, thermal, and pressure pain thresholds and pain modulations. Stool samples were collected, and the 16S rRNA V4 gene region of stool samples was sequenced and processed using the Mothur 1.42.3 pipeline. Self-reported pain and symptoms were measured by the Brief Pain Inventory and the NIH Patient-reported Outcomes Measurement Information System. The associations between pain sensation, gut microbiota α-diversity indices, and pain and symptoms were explored using the Spearman correlations. Results The HF and HC subjects' mean ages were 73.50 (SD = 8.33) and 67.10 (SD = 7.64), respectively. The HF subjects reported significantly higher pain intensity and interference, sleep disturbance, fatigue, anxiety, and depression than the HCs. The HF subjects also had a significantly lower level of physical function and participation in social roles and activities. Compared with the HCs, the HF subjects had significantly altered conditioned pain modulation heat effect and gut microbiota compositions and predicted metabolic functions. The Statistical Analysis Of Metagenomic Profiles indicated that the HF subjects had a significantly decreased cardiac muscle contraction pathway compared with the HCs. The correlation analysis showed that the quantitative sensory testing profiles and gut microbiota diversity index were significantly associated with pain and symptoms in older adults with HF. Conclusions Older adults with HF had more severe self-reported pain and symptoms, altered pain sensation, and different gut microbiota composition and function compared with age-matched HCs. Pain sensation and gut microbiota may contribute to pain and symptoms in older adults with HF and could serve as biomarkers of pain and symptoms of HF. Further research with a larger sample size is warranted to confirm these findings.
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Affiliation(s)
- Jie Chen
- Florida State University, College of Nursing, Tallahassee, FL, USA
- Florida State University, Brain Science & Symptom Management Center, Tallahassee, FL, USA
- University of Connecticut, School of Nursing, Storrs, CT, USA
| | - Zequan Wang
- University of Connecticut, School of Nursing, Storrs, CT, USA
| | | | - Ming-Hui Chen
- University of Connecticut, Department of Statistics, Storrs, CT, USA
| | - Paula McCauley
- University of Connecticut, School of Nursing, Storrs, CT, USA
| | - Hongyu Miao
- Florida State University, College of Nursing, Tallahassee, FL, USA
- Florida State University, Brain Science & Symptom Management Center, Tallahassee, FL, USA
| | - Hyochol Ahn
- University of Arizona, College of Nursing, Tucson, AZ, USA
| | - Xiaomei Cong
- Yale University, School of Nursing, Orange, CT, USA
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25
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Tilki D, Chen MH, Wu J, Huland H, Graefen M, Mohamad O, Cowan JE, Feng FY, Carroll PR, D'Amico AV. Prostate-Specific Antigen Level at the Time of Salvage Therapy After Radical Prostatectomy for Prostate Cancer and the Risk of Death. J Clin Oncol 2023; 41:2428-2435. [PMID: 36857638 PMCID: PMC10150889 DOI: 10.1200/jco.22.02489] [Citation(s) in RCA: 17] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2022] [Accepted: 01/13/2023] [Indexed: 03/03/2023] Open
Abstract
PURPOSE Both the performance characteristics of prostate-specific membrane antigen positron emission tomography and insurance approval improves with increasing prostate-specific antigen (PSA) level causing some physicians to delay post-radical prostatectomy salvage radiation therapy (sRT) after PSA failure. Yet, it is unknown for men with at most one high-risk factor (ie, pT3/4 or prostatectomy [p] Gleason score 8-10) whether a PSA level exists above which initiating sRT is associated with increased all-cause mortality (ACM)-risk and was investigated. METHODS Using a multinational database of 25,551 patients with pT2-4N0 or NXM0 prostate cancer, multivariable Cox regression analysis evaluated whether an association with a significant increase in ACM-risk existed when sRT was delivered above a prespecified PSA level beginning at 0.10 ng/mL and in 0.05 increments up to 0.50 ng/mL versus at or below that level. The model was adjusted for age at and year of radical prostatectomy, established prostate cancer prognostic factors, institution, and the time-dependent use of androgen deprivation therapy. RESULTS After a median follow-up of 6.00 years, patients who received sRT at a PSA level >0.25 ng/mL had a significantly higher ACM-risk (AHR, 1.49; 95% CI, 1.11 to 2.00; P = .008) compared with men who received sRT when the PSA was ≤0.25 mg/mL. This elevated ACM-risk remained significant for all PSA cutpoints up to 0.50 ng/mL but was not significant at PSA cutpoint values below 0.25 ng/mL. CONCLUSION Among patients with at most one high-risk factor, initiating sRT above a PSA level of 0.25 ng/mL was associated with increased ACM-risk.
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Affiliation(s)
- Derya Tilki
- Martini-Klinik Prostate Cancer Center, University Hospital Hamburg Eppendorf, Hamburg, Germany
- Department of Urology, University Hospital Hamburg-Eppendorf, Hamburg, Germany
- Department of Urology, Koc University Hospital, Istanbul, Turkey
| | - Ming-Hui Chen
- Department of Statistics, University of Connecticut, Storrs, CT
| | - Jing Wu
- Department of Computer Science and Statistics, University of Rhode Island, Kingston, RI
| | - Hartwig Huland
- Martini-Klinik Prostate Cancer Center, University Hospital Hamburg Eppendorf, Hamburg, Germany
| | - Markus Graefen
- Martini-Klinik Prostate Cancer Center, University Hospital Hamburg Eppendorf, Hamburg, Germany
| | - Osama Mohamad
- Department of Radiation Oncology, University of California, San Francisco, San Francisco, CA
| | - Janet E. Cowan
- Department of Urology, University of California, San Francisco, San Francisco, CA
| | - Felix Y. Feng
- Department of Radiation Oncology, University of California, San Francisco, San Francisco, CA
| | - Peter R. Carroll
- Department of Urology, University of California, San Francisco, San Francisco, CA
| | - Anthony V. D'Amico
- Department of Radiation Oncology, Brigham and Women's Hospital and Dana Farber Cancer Institute, Boston, MA
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Wu J, Geng L, Starkweather A, Chen MH. Modeling and maximum likelihood based inference of interval-censored data with unknown upper limits and time-dependent covariates. Stat Med 2023. [PMID: 37015590 DOI: 10.1002/sim.9732] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Revised: 12/22/2022] [Accepted: 03/19/2023] [Indexed: 04/06/2023]
Abstract
Due to the nature of study design or other reasons, the upper limits of the interval-censored data with multiple visits are unknown. A naïve approach is to treat the last observed time as the exact event time, which may induce biased estimators of the model parameters. In this paper, we first develop a Cox model with time-dependent covariates for the event time and a proportional hazards model with frailty for the gap time. We then construct the upper limits using the latent gap times to resolve the issue of interval-censored event time data with unknown upper limits. A data-augmentation technique and a Monte Carlo EM (MCEM) algorithm are developed to facilitate computation. Theoretical properties of the computational algorithm are also investigated. Additionally, new model comparison criteria are developed to assess the fit of the gap time data as well as the fit of the event time data conditional on the gap time data. Our proposed method compares favorably with competing methods in both simulation study and real data analysis.
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Affiliation(s)
- Jing Wu
- Department of Computer Science and Statistics, University of Rhode Island, Kingston, 02881, Rhode Island, USA
| | - Lijiang Geng
- Department of Statistics, University of Connecticut, Storrs, 06269, Connecticut, USA
| | - Angela Starkweather
- School of Nursing, University of Connecticut, Storrs, 06269, Connecticut, USA
| | - Ming-Hui Chen
- Department of Statistics, University of Connecticut, Storrs, 06269, Connecticut, USA
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Huang K, Li HY, Chen MH, Zhu TT, Zhang XY, Lyu FF, Lin L, Su MS, Dong L. [Analysis of the clinical features and the risk factors of severe human metapneu movirus-associated community acquired pneumonia in children]. Zhonghua Er Ke Za Zhi 2023; 61:322-327. [PMID: 37011977 DOI: 10.3760/cma.j.cn112140-20221231-01079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 04/05/2023]
Abstract
Objective: To investigate the clinical characteristics and the risk factors of severe human metapneumovirus (hMPV)-associated community acquired pneumonia (CAP) in children. Methods: A retrospective case summary was conducted. From December 2020 to March 2022, 721 children who were diagnosed with CAP and tested positive for hMPV nucleic acid by PCR-capillary electrophoresis fragment analysis of nasopharyngeal secretions at the Yuying Children's Hospital, the Second Affiliated Hospital of Wenzhou Medical University were selected as the research objects. The clinical characteristics, epidemiological characteristics and mixed pathogens of the two groups were analyzed. According to CAP diagnostic criteria, the children were divided into the severe group and the mild group. Chi-square test or Mann-Whitney rank and contrast analysis was used for comparison between groups, while multivariate Logistic regression was applied to analyze the risk factors of the severe hMPV-associated CAP. Results: A total of 721 children who were diagnosed with hMPV-associated CAP were included in this study, with 397 males and 324 females. There were 154 cases in the severe group. The age of onset was 1.0 (0.9, 3.0) years, <3 years old 104 cases (67.5%), and the length of hospital stay was 7 (6, 9) days. In the severe group, 67 children (43.5%) were complicated with underlying diseases. In the severe group, 154 cases (100.0%) had cough, 148 cases (96.1%) had shortness of breath and pulmonary moist rales, and 132 cases (85.7%) had fever, 23 cases (14.9%) were complicated with respiratory failure. C-reactive protein (CRP) was elevated in 86 children (55.8%), including CRP≥50 mg/L in 33 children (21.4%). Co-infection was detected in 77 cases (50.0%) and 102 strains of pathogen were detected, 25 strains of rhinovirus, 17 strains of Mycoplasma pneumoniae, 15 strains of Streptococcus pneumoniae, 12 strains of Haemophilus influenzae and 10 strains of respiratory syncytial virus were detected. Six cases (3.9%) received heated and humidified high flow nasal cannula oxygen therapy, 15 cases (9.7%) were admitted to intensive care unit, and 2 cases (1.3%) received mechanical ventilation. In the severe group, 108 children were cured, 42 children were improved, 4 chlidren were discharged automatically without recovery and no death occurred. There were 567 cases in the mild group. The age of onset was 2.7 (1.0, 4.0) years, and the length of hospital stay was 4 (4, 6) days.Compared with the mild group, the proportion of children who age of disease onset <6 months, CRP≥50 mg/L, the proportions of preterm birth, congenital heart disease, malnutrition, congenital airway malformation, neuromuscular disease, mixed respiratory syncytial viruses infection were higher (20 cases (13.0%) vs. 31 cases (5.5%), 32 cases (20.8%) vs. 64 cases (11.3%), 23 cases (14.9%) vs. 44 cases (7.8%), 11 cases (7.1%) vs. 18 cases (3.2%), 9 cases (5.8%) vs. 6 cases (1.1%), 11 cases (7.1%) vs. 12 cases (2.1%), 8 cases (5.2%) vs. 4 cases (0.7%), 10 cases (6.5%) vs. 13 cases (2.3%), χ2=0.42, 9.45, 7.40, 4.94, 11.40, 8.35, 3.52, 6.92, all P<0.05). Multivariate Logistic regression analysis showed that age<6 months (OR=2.51, 95%CI 1.29-4.89), CRP≥50 mg/L (OR=2.20, 95%CI 1.36-3.57), prematurity (OR=2.19, 95%CI 1.26-3.81), malnutrition (OR=6.05, 95%CI 1.89-19.39) were the independent risk factors for severe hMPV-associated CAP. Conclusions: Severe hMPV-associated CAP is most likely to occur in infants under 3 years old and has a higher proportion of underlying diseases and co-infection. The main clinical manifestations are cough, shortness of breath and pulmonary moist rales, fever. The overall prognosis is good. Age<6 months, CRP≥50 mg/L, preterm birth, malnutrition are the independent risk factors for severe hMPV-associated CAP.
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Affiliation(s)
- K Huang
- Department of Pediatric Respiratory Medicine, the Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou 325027, China
| | - H Y Li
- Department of Pediatric Respiratory Medicine, the Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou 325027, China
| | - M H Chen
- Department of Pediatric Respiratory Medicine, the Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou 325027, China
| | - T T Zhu
- Department of Pediatric Respiratory Medicine, the Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou 325027, China
| | - X Y Zhang
- Department of Pediatric Respiratory Medicine, the Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou 325027, China
| | - F F Lyu
- Department of Pediatric Respiratory Medicine, the Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou 325027, China
| | - L Lin
- Department of Pediatric Respiratory Medicine, the Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou 325027, China
| | - M S Su
- Department of Pediatric Respiratory Medicine, the Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou 325027, China
| | - L Dong
- Department of Pediatric Respiratory Medicine, the Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou 325027, China
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Chen J, Li H, Zhao T, Chen K, Chen MH, Sun Z, Xu W, Maas K, Lester BM, Cong XS. The Impact of Early Life Experiences and Gut Microbiota on Neurobehavioral Development in Preterm Infants: A Longitudinal Cohort Study. Microorganisms 2023; 11:microorganisms11030814. [PMID: 36985387 PMCID: PMC10056840 DOI: 10.3390/microorganisms11030814] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Revised: 03/11/2023] [Accepted: 03/16/2023] [Indexed: 03/30/2023] Open
Abstract
OBJECTIVES The objective of this study is to investigate the impact of early life experiences and gut microbiota on neurobehavioral development in preterm infants during neonatal intensive care unit (NICU) hospitalization. METHODS Preterm infants were followed from NICU admission until their 28th postnatal day or until discharge. Daily stool samples, painful/stressful experiences, feeding patterns, and other clinical and demographic data were collected. Gut microbiota was profiled using 16S rRNA sequencing, and operational taxonomic units (OTUs) were selected to predict the neurobehaviors. The neurobehavioral development was assessed by the Neonatal Neurobehavioral Scale (NNNS) at 36 to 38 weeks of post-menstrual age (PMA). Fifty-five infants who had NNNS measurements were included in the sparse log-contrast regression analysis. RESULTS Preterm infants who experienced a high level of pain/stress during the NICU hospitalization had higher NNNS stress/abstinence scores. Eight operational taxonomic units (OTUs) were identified to be associated with NNNS subscales after controlling demographic and clinical features, feeding patterns, and painful/stressful experiences. These OTUs and taxa belonging to seven genera, i.e., Enterobacteriaceae_unclassified, Escherichia-Shigella, Incertae_Sedis, Veillonella, Enterococcus, Clostridium_sensu_stricto_1, and Streptococcus with five belonging to Firmicutes and two belonging to Proteobacteria phylum. The enriched abundance of Enterobacteriaceae_unclassified (OTU17) and Streptococcus (OTU28) were consistently associated with less optimal neurobehavioral outcomes. The other six OTUs were also associated with infant neurobehavioral responses depending on days at NICU stay. CONCLUSIONS This study explored the dynamic impact of specific OTUs on neurobehavioral development in preterm infants after controlling for early life experiences, i.e., acute and chronic pain/stress and feeding in the NICU. The gut microbiota and acute pain/stressful experiences dynamically impact the neurobehavioral development in preterm infants during their NICU hospitalization.
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Affiliation(s)
- Jie Chen
- College of Nursing, Florida State University, Tallahassee, FL 32306, USA
- School of Nursing, University of Connecticut, Storrs, CT 06269, USA
| | - Hongfei Li
- Department of Statistics, University of Connecticut, Storrs, CT 06269, USA
| | - Tingting Zhao
- School of Nursing, University of Connecticut, Storrs, CT 06269, USA
- School of Nursing, Yale University, Orange, CT 06477, USA
| | - Kun Chen
- Department of Statistics, University of Connecticut, Storrs, CT 06269, USA
| | - Ming-Hui Chen
- Department of Statistics, University of Connecticut, Storrs, CT 06269, USA
| | - Zhe Sun
- Department of Statistics, University of Connecticut, Storrs, CT 06269, USA
- Department of Biostatistics, School of Public Health, Yale University, New Haven, CT 06520, USA
| | - Wanli Xu
- School of Nursing, University of Connecticut, Storrs, CT 06269, USA
| | - Kendra Maas
- Microbial Analysis, Resources, and Services (MARS), University of Connecticut, Storrs, CT 06269, USA
| | - Barry M Lester
- Brown Center for the Study of Children at Risk, Departments of Psychiatry and Pediatrics, Warren Alpert Medical School of Brown University, Providence, RI 02903, USA
| | - Xiaomei S Cong
- School of Nursing, University of Connecticut, Storrs, CT 06269, USA
- School of Nursing, Yale University, Orange, CT 06477, USA
- Institute for Systems Genomics, University of Connecticut, Farmington, CT 06030, USA
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Kao PY, Chen MH, Chang WA, Pan ML, Shu WD, Jong YJ, Huang HD, Wang CY, Chu HY, Pan CT, Liu YL, Lin YS. A genome-wide association study (GWAS) of the personality constructs in CPAI-2 in Taiwanese Hakka populations. PLoS One 2023; 18:e0281903. [PMID: 36800362 PMCID: PMC9937499 DOI: 10.1371/journal.pone.0281903] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2022] [Accepted: 02/02/2023] [Indexed: 02/18/2023] Open
Abstract
Here in this study we adopted genome-wide association studies (GWAS) to investigate the genetic components of the personality constructs in the Chinese Personality Assessment Inventory 2 (CPAI-2) in Taiwanese Hakka populations, who are likely the descendants of a recent admixture between a group of Chinese immigrants with high emigration intention and a group of the Taiwanese aboriginal population generally without it. A total of 279 qualified participants were examined and genotyped by an Illumina array with 547,644 SNPs to perform the GWAS. Although our sample size is small and that unavoidably limits our statistical power (Type 2 error but not Type 1 error), we still found three genomic regions showing strong association with Enterprise, Diversity, and Logical vs. Affective Orientation, respectively. Multiple genes around the identified regions were reported to be nervous system related, which suggests that genetic variants underlying the certain personalities should indeed exist in the nearby areas. It is likely that the recent immigration and admixture history of the Taiwanese Hakka people created strong linkage disequilibrium between the emigration intention-related genetic variants and their neighboring genetic markers, so that we could identify them despite with only limited statistical power.
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Affiliation(s)
- Pei-Ying Kao
- Institute of Bioinformatics and Systems Biology, National Yang Ming Chiao Tung University, Hsinchu, Taiwan
| | - Ming-Hui Chen
- Department of Hakka Language and Social Science, National Central University, Taoyuan, Taiwan
| | - Wei-An Chang
- Department of Humanities and Social Sciences, National Yang Ming Chiao Tung University, Hsinchu, Taiwan
- Research Center for Humanities and Social Sciences, National Yang Ming Chiao Tung University, Hsinchu, Taiwan
| | - Mei-Lin Pan
- Department of Humanities and Social Sciences, National Yang Ming Chiao Tung University, Hsinchu, Taiwan
| | - Wei-Der Shu
- Department of Humanities and Social Sciences, National Yang Ming Chiao Tung University, Hsinchu, Taiwan
| | - Yuh-Jyh Jong
- Department of Biological Science and Technology, College of Biological Science and Technology, National Chiao Tung University, Hsinchu, Taiwan
- Graduate Institute of Clinical Medicine, College of Medicine, Kaohsiung Medical University (KMU), Kaohsiung, Taiwan
- Departments of Pediatrics and Laboratory Medicine, KMU Hospital, Kaohsiung, Taiwan
| | - Hsien-Da Huang
- Department of Biological Science and Technology, College of Biological Science and Technology, National Chiao Tung University, Hsinchu, Taiwan
- Institute of Bioinformatics and Systems Biology, National Chiao Tung University, Hsinchu, Taiwan
| | - Cheng-Yan Wang
- Institute of Education, National Yang Ming Chiao Tung University, Hsinchu, Taiwan
| | - Hong-Yan Chu
- Research Center for Humanities and Social Sciences, National Yang Ming Chiao Tung University, Hsinchu, Taiwan
| | - Cheng-Tsung Pan
- Institute of Bioinformatics and Systems Biology, National Chiao Tung University, Hsinchu, Taiwan
| | - Yih-Lan Liu
- Institute of Education, National Yang Ming Chiao Tung University, Hsinchu, Taiwan
- * E-mail: (YLL); (YSL)
| | - Yeong-Shin Lin
- Institute of Bioinformatics and Systems Biology, National Yang Ming Chiao Tung University, Hsinchu, Taiwan
- Department of Biological Science and Technology, College of Biological Science and Technology, National Yang Ming Chiao Tung University, Hsinchu, Taiwan
- * E-mail: (YLL); (YSL)
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30
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Sheikh MT, Chen MH, Gelfond JA, Sun W, Ibrahim JG. New C-indices for assessing importance of longitudinal biomarkers in fitting competing risks survival data in the presence of partially masked causes. Stat Med 2023; 42:1308-1322. [PMID: 36696954 DOI: 10.1002/sim.9671] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2021] [Revised: 12/20/2022] [Accepted: 01/13/2023] [Indexed: 01/27/2023]
Abstract
Competing risks survival data in the presence of partially masked causes are frequently encountered in medical research or clinical trials. When longitudinal biomarkers are also available, it is of great clinical importance to examine associations between the longitudinal biomarkers and the cause-specific survival outcomes. In this article, we propose a cause-specific C-index for joint models of longitudinal and competing risks survival data accounting for masked causes. We also develop a posterior predictive algorithm for computing the out-of-sample cause-specific C-index using Markov chain Monte Carlo samples from the joint posterior of the in-sample longitudinal and competing risks survival data. We further construct the Δ $$ \Delta $$ C-index to quantify the strength of association between the longitudinal and cause-specific survival data, or between the out-of-sample longitudinal and survival data. Empirical performance of the proposed assessment criteria is examined through an extensive simulation study. An in-depth analysis of the real data from large cancer prevention trials is carried out to demonstrate the usefulness of the proposed methodology.
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Affiliation(s)
- Md Tuhin Sheikh
- Department of Statistics, University of Connecticut, Storrs, Connecticut, USA
| | - Ming-Hui Chen
- Department of Statistics, University of Connecticut, Storrs, Connecticut, USA
| | - Jonathan A Gelfond
- Department of Epidemiology and Biostatistics, University of Texas Health, Houston, Texas, USA
| | - Wei Sun
- Public Health Sciences Division, Fred Hutchinson Cancer Center, Seattle, Washington, USA
| | - Joseph G Ibrahim
- Department of Biostatistics, University of North Carolina Chapel Hill, Chapel Hill, North Carolina, USA
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31
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Chen J, Li H, Zhao T, Chen K, Chen MH, Sun Z, Xu W, Maas K, Lester B, Cong X. The impact of early life experiences and gut microbiota on neurobehavioral development among preterm infants: A longitudinal cohort study. medRxiv 2023:2023.01.04.23284200. [PMID: 36711616 PMCID: PMC9882379 DOI: 10.1101/2023.01.04.23284200] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Objectives To investigate the impact of early life experiences and gut microbiota on neurobehavioral development among preterm infants during neonatal intensive care unit (NICU) hospitalization. Methods Preterm infants were followed from the NICU admission until their 28 th postnatal day or until discharge. Daily stool samples, painful/stressful experiences, feeding patterns, and other clinical and demographic data were collected. Gut microbiota was profiled using 16S rRNA sequencing, and operational taxonomic units (OTUs) were selected to predict the neurobehaviors. The neurobehavioral development was assessed by the Neonatal Neurobehavioral Scale (NNNS) at 36 to 38 weeks of post-menstrual age (PMA). Fifty-five infants who had NNNS measurements were included in the sparse log-contrast regression analysis. Results Preterm infants who experienced high level of pain/stress during the NICU hospitalization that were associated with higher NNNS stress/abstinence scores. Eight operational taxonomic units (OTUs) were identified to be associated with of NNNS subscales after controlling demographic and clinical features, feeding patterns, and painful/stressful experiences. These OTUs, taxa belong to seven genera including Enterobacteriaceae_unclassified, Escherichia-Shigella, Incertae_Sedis, Veillonella, Enterococcus, Clostridium_sensu_stricto_1 , and Streptococcus with five belonging to Firmicutes and two belonging to Proteobacteria phylum. The enriched abundance of Enterobacteriaceae_unclassified (OTU17) and Streptococcus (OTU28) were consistently associated with less optimal neurobehavioral outcomes. The other six OTUs were also associated with infant neurobehavioral responses depending on days at NICU stay. Conclusions This study explored the dynamic impact of specific OTUs on neurobehavioral development among preterm infants after controlling for early life experiences, i.e., acute and chronic pain/stress, and feeding in the NICU.
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Affiliation(s)
- Jie Chen
- Florida State University College of Nursing, Tallahassee, FL., United States,School of Nursing, University of Connecticut, Storrs, CT., United States
| | - Hongfei Li
- Department of Statistics, University of Connecticut, Storrs, CT., United States
| | - Tingting Zhao
- School of Nursing, University of Connecticut, Storrs, CT., United States
| | - Kun Chen
- Department of Statistics, University of Connecticut, Storrs, CT., United States
| | - Ming-Hui Chen
- Department of Statistics, University of Connecticut, Storrs, CT., United States
| | - Zhe Sun
- Department of Statistics, University of Connecticut, Storrs, CT., United States,Department of Biostatistics, Yale School of Public Health, New Haven, CT., United States
| | - Wanli Xu
- School of Nursing, University of Connecticut, Storrs, CT., United States
| | - Kendra Maas
- University of Connecticut, Microbial Analysis, Resources, and Services (MARS), Storrs, CT., United States
| | - Barry Lester
- Brown Center for the Study of Children at Risk, Departments of Psychiatry and Pediatrics, Warren Alpert Medical School of Brown University, Providence, RI., United States
| | - Xiaomei Cong
- School of Nursing, University of Connecticut, Storrs, CT., United States,Yale University School of Nursing, Orange, CT., United States.,Institute for Systems Genomics, University of Connecticut, Farmington, CT., United States.,Correspondence: Xiaomei S. Cong, PhD, RN, FAAN, Professor and Associate Dean for Research, Yale University, School of Nursing, 400 West Campus Drive, Orange, CT 06477, Tel: 203-737-4916, , University of Connecticut School of Nursing, 231 Glenbrook Road, Unit 4026, Storrs, CT 06269-4026. USA,
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32
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Tian BS, Wu YJ, Cui XX, Lyu JW, Chen MH, Zhu C, Gu B. [Research progress of CRISPR/Cas biosensors based on different signal amplification strategies]. Zhonghua Yu Fang Yi Xue Za Zhi 2023; 57:112-119. [PMID: 36655267 DOI: 10.3760/cma.j.cn112150-20220220-00158] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
CRISPR/Cas(the clustered regularly interspaced short palindromic repeats-CRISPR associated)system exists in most bacteria and all archaea. It is an important strategy for bacteria and archaea to resist foreign nucleic acid invasion and use for self-defense. The CRISPR/Cas system is a simple, fast, and specific diagnostic tool, which is widely used in agriculture, industry, animal husbandry, and medicine. This article mainly introduces and discusses recently advantages and limitations of biosensors combining CRISPR/Cas system with fluorescence, visualization and surface enhanced raman related technologies, as well as future research directions.
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Affiliation(s)
- B S Tian
- College of Medical Technology, Xuzhou Medical University, Xuzhou 221004, China Division of Laboratory Medicine, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences,Guangzhou 510080, China
| | - Y J Wu
- School of Medical Imaging, Xuzhou Medical University, Xuzhou 221004, China
| | - X X Cui
- College of Medical Technology, Xuzhou Medical University, Xuzhou 221004, China Division of Laboratory Medicine, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences,Guangzhou 510080, China
| | - J W Lyu
- College of Medical Technology, Xuzhou Medical University, Xuzhou 221004, China Division of Laboratory Medicine, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences,Guangzhou 510080, China
| | - M H Chen
- School of Medical Imaging, Xuzhou Medical University, Xuzhou 221004, China
| | - C Zhu
- Department of Laboratory Medicine, Xuzhou Tumor Hospital, Xuzhou 221005, China
| | - B Gu
- College of Medical Technology, Xuzhou Medical University, Xuzhou 221004, China Division of Laboratory Medicine, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences,Guangzhou 510080, China
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33
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Lim D, Chen MH, G. Ibrahim J, Kim S, K. Shah A, Lin J. metapack: An R Package for Bayesian Meta-Analysis and Network Meta-Analysis with a Unified Formula Interface. The R Journal 2022; 14:142-161. [PMID: 37168034 PMCID: PMC10168678 DOI: 10.32614/rj-2022-047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Meta-analysis, a statistical procedure that compares, combines, and synthesizes research findings from multiple studies in a principled manner, has become popular in a variety of fields. Meta-analyses using study-level (or equivalently aggregate) data are of particular interest due to data availability and modeling flexibility. In this paper, we describe an R package metapack that introduces a unified formula interface for both meta-analysis and network meta-analysis. The user interface-and therefore the package-allows flexible variance-covariance modeling for multivariate meta-analysis models and univariate network meta-analysis models. Complicated computing for these models has prevented their widespread adoption. The package also provides functions to generate relevant plots and perform statistical inferences like model assessments. Use cases are demonstrated using two real data sets contained in metapack.
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Liu F, Wang X, Hancock R, Chen MH. Bayesian Model Assessment for Jointly Modeling Multidimensional Response Data with Application to Computerized Testing. Psychometrika 2022; 87:1290-1317. [PMID: 35349031 DOI: 10.1007/s11336-022-09845-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/14/2020] [Revised: 12/26/2021] [Indexed: 06/14/2023]
Abstract
Computerized assessment provides rich multidimensional data including trial-by-trial accuracy and response time (RT) measures. A key question in modeling this type of data is how to incorporate RT data, for example, in aid of ability estimation in item response theory (IRT) models. To address this, we propose a joint model consisting of a two-parameter IRT model for the dichotomous item response data, a log-normal model for the continuous RT data, and a normal model for corresponding paper-and-pencil scores. Then, we reformulate and reparameterize the model to capture the relationship between the model parameters, to facilitate the prior specification, and to make the Bayesian computation more efficient. Further, we propose several new model assessment criteria based on the decomposition of deviance information criterion (DIC) the logarithm of the pseudo-marginal likelihood (LPML). The proposed criteria can quantify the improvement in the fit of one part of the multidimensional data given the other parts. Finally, we have conducted several simulation studies to examine the empirical performance of the proposed model assessment criteria and have illustrated the application of these criteria using a real dataset from a computerized educational assessment program.
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Affiliation(s)
- Fang Liu
- Northeast Normal University, Changchun, China
| | - Xiaojing Wang
- University of Connecticut, Storrs, , CT, 06250, USA.
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Sakaki JR, Gao S, Ha K, Chavarro JE, Chen MH, Sun Q, Hart JE, Chun OK. Childhood beverage intake and risk of hypertension and hyperlipidaemia in young adults. Int J Food Sci Nutr 2022; 73:954-964. [PMID: 35761780 PMCID: PMC9951226 DOI: 10.1080/09637486.2022.2091524] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Revised: 06/10/2022] [Accepted: 06/15/2022] [Indexed: 10/17/2022]
Abstract
An epidemiological analysis assessing beverage consumption and risk factors for cardiovascular disease was conducted. Participants were 9-16 years old at enrolment, completed food frequency questionnaires in 1996-2001 and self-reported outcomes in 2010-2014. Exclusion criteria included missing data on relevant variables and covariates, prevalent disease before 2005, and implausible/extreme weight or energy intake. Intakes of orange juice, apple/other fruit juice, sugar-sweetened beverages and diet soda were related to the risk of incident hypertension or hyperlipidaemia using Cox proportional hazards regression, adjusting for diet, energy intake, age, smoking, physical activity and body mass index. There were 9,043 participants with 618 cases of hypertension and 850 of hyperlipidaemia in 17 years of mean follow-up. Sugar-sweetened beverage intake but not fruit juice nor diet soda was associated with hypertension (hazard ratio (95% confidence interval): 1.16 (1.03, 1.31)) in males. This study can guide beverage consumption as it relates to early predictors of cardiovascular disease.
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Affiliation(s)
- Junichi R. Sakaki
- Department of Nutritional Sciences, University of Connecticut, 27 Manter Rd., Unit 4017, Storrs, CT 06269
| | - Simiao Gao
- Department of Statistics, University of Connecticut, 215 Glenbrook Rd., U-4120, Storrs, CT, 06269
| | - Kyungho Ha
- Department of Food Science and Nutrition, Jeju National University, Jeju, South Korea
| | - Jorge E. Chavarro
- Department of Nutrition and Epidemiology, Harvard T.H. Chan School of Public Health, 677 Huntington Ave., Boston, MA.; Channing Division of Network Medicine, Department of Medicine, Brigham and Women’s Hospital, and Harvard Medical School, Boston, MA
| | - Ming-Hui Chen
- Department of Statistics, University of Connecticut, 215 Glenbrook Rd., U-4120, Storrs, CT, 06269
| | - Qi Sun
- Department of Nutrition and Epidemiology, Harvard T.H. Chan School of Public Health, 677 Huntington Ave., Boston, MA.; Channing Division of Network Medicine, Department of Medicine, Brigham and Women’s Hospital, and Harvard Medical School, Boston, MA
| | - Jaime E. Hart
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, 401 Park Drive, 3rd Fl West, Boston, MA 02215.; Channing Division of Network Medicine, Department of Medicine, Brigham and Women’s Hospital, and Harvard Medical School, Boston, MA
| | - Ock K. Chun
- Department of Nutritional Sciences, University of Connecticut, 27 Manter Rd., Unit 4017, Storrs, CT 06269
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Ramanathan P, Liu R, Chen MH, Kennedy MRT. Memory and Executive Functions Subserving Judgments of Learning: Cognitive Reorganization After Traumatic Brain Injury. Neuropsychol Rehabil 2022; 32:2203-2226. [PMID: 34006181 DOI: 10.1080/09602011.2021.1929345] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
We investigated relationships between psychometric measures of memory, executive functions (EFs), and task-based measures of Judgments of Learning (JOLs) in individuals with and without Traumatic Brain Injury (TBI), to study functional reorganization after TBI. We hypothesized that, in controls, accuracy of immediate JOLs would be associated with short-term memory and EFs (but not long-term memory, LTM), while accuracy of delayed JOLs would be associated primarily with LTM. We hypothesized that those with good recovery from TBI would demonstrate functional reorganization of the relationships between memory, EFs, and JOLs. Eighteen individuals with TBI and 18 matched controls completed eight neuropsychological tests of memory and EFs. They studied word-pairs, made immediate and delayed JOLs, and took a cued-recall test for the studied word-pairs. Stepwise regression and Lasso analyses generated a predictive model of JOL accuracy for each group. Accuracy of immediate JOLs in controls was predicted by short-term memory, inhibition, switching, and cognitive fluency, while accuracy of delayed JOLs was predicted by verbal recall. In individuals with TBI, inhibition predicted immediate JOL accuracy and switching predicted delayed JOL accuracy. Cognitive reorganization in those with good long-term recovery from TBI may account for the ability to make JOLs with accuracy similar to controls.
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Affiliation(s)
- Pradeep Ramanathan
- Department of Speech, Language, and Hearing Sciences, California State University, Hayward, CA, USA
| | - Ran Liu
- Statistics, Takeda Pharmaceutical Co. Limited, Cambridge, MA, USA
| | - Ming-Hui Chen
- Department of Statistics, University of Connecticut, Storrs, CT, USA
| | - Mary R T Kennedy
- Department of Communication Sciences and Disorders, Chapman University, Irvine, CA, USA
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Liu JH, Ding FH, Song HY, Chen MH, Hu DM. Analysis of genetic diversity among Chinese Cyclocybe chaxingu strains using ISSR and SRAP markers. PeerJ 2022; 10:e14037. [PMID: 36196401 PMCID: PMC9527026 DOI: 10.7717/peerj.14037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2022] [Accepted: 08/18/2022] [Indexed: 01/19/2023] Open
Abstract
Background Cyclocybe chaxingu is an edible and medicinal fungal species commonly cultivated in China. The major problems currently facing by growers of C. chaxingu is the random labeling of strains and strains aging and degeneration. Therefore, an evaluation of genetic diversity is essential for the conservation and reproducing programs of this species. Methods In the present study, 24 widely cultivated strains were collected from the main producing areas of China, and the genetic diversity analysis was performed. DNA polymorphism among these Chinese C. chaxingu strains was analyzed using inter-simple sequence repeat (ISSR) and sequence-related amplified polymorphism (SRAP) markers. Results Eight ISSR primers amplified a total of 75 DNA fragments of which 61 (81.33%) were polymorphic. Fifteen SRAP primer combinations amplified 166 fragments of which 132 (79.52%) were polymorphic. Cluster analysis showed that the C. chaxnigu strains fall into five groups with a genetic distance values ranging from 0.06 to 0.60 by ISSR analysis, while the SRAP analysis divided the test strains into four groups within the range of genetic distance from 0.03 to 0.57. The results of the present study reveal a high level of genetic diversity among the widely cultivated C. chaxingu strains.
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Affiliation(s)
- Jin-Hao Liu
- Jiangxi Agricultural University, Bioengineering and Technological Research Centre for Edible and Medicinal Fungi, Nanchang, China,Jiangxi Agricultural University, College of Bioscience and Bioengineering, Nanchang, China,Jiangxi Key Laboratory for Conservation and Utilization of Fungal Resources, and College of Bioscience and Bioengineering, Nanchang, China
| | - Fang-Hui Ding
- Jiangxi Agricultural University, College of Bioscience and Bioengineering, Nanchang, China
| | - Hai-Yan Song
- Jiangxi Agricultural University, Bioengineering and Technological Research Centre for Edible and Medicinal Fungi, Nanchang, China,Ministry of Education of the P.R. China, Key Laboratory of Crop Physiology, Ecology and Genetic Breeding (Jiangxi Agricultural University), Nanchang, China
| | - Ming-Hui Chen
- Jiangxi Agricultural University, Bioengineering and Technological Research Centre for Edible and Medicinal Fungi, Nanchang, China,Jiangxi Agricultural University, College of Bioscience and Bioengineering, Nanchang, China,Jiangxi Key Laboratory for Conservation and Utilization of Fungal Resources, and College of Bioscience and Bioengineering, Nanchang, China
| | - Dian-Ming Hu
- Jiangxi Agricultural University, Bioengineering and Technological Research Centre for Edible and Medicinal Fungi, Nanchang, China,Jiangxi Agricultural University, College of Bioscience and Bioengineering, Nanchang, China,Jiangxi Key Laboratory for Conservation and Utilization of Fungal Resources, and College of Bioscience and Bioengineering, Nanchang, China
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Day C, Berkowsky RS, Zaleski AL, Chen MH, Taylor BA, Parducci PM, Wu Y, Fernhall B, Thompson PD, Fernandez AB, Pescatello LS. THE INFLUENCE OF SUDDEN VIGOROUS PHYSICAL EXERTION ON CARDIAC DEMAND UNDER AMBULATORY CONDITIONS AMONG FIREFIGHTERS. Med Sci Sports Exerc 2022. [DOI: 10.1249/01.mss.0000880696.68519.59] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Kiernan PA, Day CA, Berkowsky RS, Zaleski AL, Taylor BA, Santos LP, Panza G, Kramarz M, McCormick K, Thompson PD, Fernandez AB, Chen MH, Pescatello LS. The Reproducibility Of Postexercise Hypotension Over A 12-week Exercise Training Program Among Adults With Hypertension. Med Sci Sports Exerc 2022. [DOI: 10.1249/01.mss.0000880672.02200.81] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Huang LC, Chen MH, Chuu CP, Li KY, Hour TC, Yang YH. Plasma biomarkers and their correlation in adult children of parents with Alzheimer’s disease. Front Aging Neurosci 2022; 14:977515. [PMID: 36110426 PMCID: PMC9468332 DOI: 10.3389/fnagi.2022.977515] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Accepted: 08/02/2022] [Indexed: 11/22/2022] Open
Abstract
Family history (FH) of late-onset Alzheimer’s disease (AD) is associated with changes in several cerebrospinal fluid (CSF) biomarkers in cognitively normal individuals. However, potential changes in plasma biomarkers remain unknown. This study aimed to evaluate potential plasma biomarkers and their correlation in cognitively normal adult children (AC) and to compare this data with their AD parents and unrelated non-demented controls (NC). Participants with dementia due to AD, their AC and NC were recruited. Plasma samples were assessed for amyloid beta (Aβ)1–42, Aβ1–40, total tau (T-tau) and phosphorylated tau (P-tau). Kruskal–Wallis test was used for the comparison of this data between the three groups. Spearman rank correlation was used for evaluation of the correlations between Aβ1–40 and Aβ1–42, and T-tau and P-tau in the AD and AC groups. A total of 99 subjects completed the assessment (30 had AD; 38 were AC group; and 31 were NC). Compared with the NC group, there were significantly higher levels of Aβ1–40, P-tau, and P-tau/T-tau ratio, and lower levels of Aβ1–42 and Aβ1–42/Aβ1–40 ratio in the AD and AC groups. The correlation between the level of Aβ1–42 and Aβ1–40 and level of T-tau and P-tau was only observed in the AC but not in the AD group. AC of AD parents demonstrate some indicators of AD like their parents. Disruption to the correlation between Aβ and tau in AD may be a biomarker for the development of AD in AC, which should be examined in a longitudinal cohort.
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Affiliation(s)
- Ling-Chun Huang
- Department of Neurology, Kaohsiung Municipal Ta-Tung Hospital, Kaohsiung Medical University, Kaohsiung City, Taiwan
- Department of Neurology, Kaohsiung Medical University Hospital, Kaohsiung City, Taiwan
- Neuroscience Research Center, Kaohsiung Medical University, Kaohsiung City, Taiwan
| | - Ming-Hui Chen
- Neuroscience Research Center, Kaohsiung Medical University, Kaohsiung City, Taiwan
| | - Chih-Pin Chuu
- Institute of Cellular and System Medicine, National Health Research Institutes, Zhunan, Miaoli County, Taiwan
| | - Kuan-Ying Li
- Department of Neurology, Kaohsiung Municipal Ta-Tung Hospital, Kaohsiung Medical University, Kaohsiung City, Taiwan
- Department of Neurology, Kaohsiung Medical University Hospital, Kaohsiung City, Taiwan
| | - Tzyh-Chyuan Hour
- Neuroscience Research Center, Kaohsiung Medical University, Kaohsiung City, Taiwan
- Department of Biochemistry, College of Medicine, Kaohsiung Medical University, Kaohsiung City, Taiwan
| | - Yuan-Han Yang
- Department of Neurology, Kaohsiung Municipal Ta-Tung Hospital, Kaohsiung Medical University, Kaohsiung City, Taiwan
- Department of Neurology, Kaohsiung Medical University Hospital, Kaohsiung City, Taiwan
- Neuroscience Research Center, Kaohsiung Medical University, Kaohsiung City, Taiwan
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Huo C, Chen MH, Hour TC, Huang LC, Fong YO, Kuo YY, Yang YH, Chuu CP. Application of Micro-Western Array for Identifying Different Serum Protein Expression Profile among Healthy Control, Alzheimer’s Disease Patients and Patients’ Adult Children. Brain Sci 2022; 12:brainsci12091134. [PMID: 36138870 PMCID: PMC9496696 DOI: 10.3390/brainsci12091134] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2022] [Revised: 08/17/2022] [Accepted: 08/23/2022] [Indexed: 12/03/2022] Open
Abstract
(1) Background: Alzheimer’s disease (AD) is the most common form of dementia. Increased levels of inflammatory proteins have been observed in brain and plasma samples of AD patients; however, it is not clear if other serum proteins correlate to the development or disease progression of AD. (2) Methods: Micro-Western Array (MWA) is a high-throughput antibody-based proteomics system which allows detection of the expression levels of 24–96 different proteins within 6–30 samples simultaneously. We applied MWA to explore potential serum protein biomarkers correlated to the development and progression of AD by examining the difference in serum protein profile of 31 healthy control (HC), 30 patients with AD and 30 patients’ adult children (ACS). (3) Results: Compared to HC, AD and ACS express similar pattern of serum proteins, including higher protein levels of ABCA1, ABCG1, SREBP1 and LXRβ but lower protein levels of ApoD, ApoE, ApoH, c_Myc, COX2 and Hippo-YAP signaling proteins. AD patients had higher serum levels of ABCG1, ApoD, ApoH, COX2, LXRα and YAP, but lower levels of ABCA1, ApoE, c_Myc, LATS1, MST1, MST2, Nanog, NFκB_p50, PPARγ and SREBP2, as compared to ACS. Pearson’s correlation analysis revealed that the protein expression level of ApoE, c_Myc, LATS1, MST2, NFκB p50, PPARγ and SREBP1 was negatively correlated to age, while that of ApoE, c_Myc, LATS1, MST1, MST2, Nanog, NFκB p50 and PPARγ was positively correlated to age. (4) Conclusions: We identified a group of serum proteins which may correlate to disease progression of AD and can be potential diagnostic serum protein biomarkers.
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Affiliation(s)
- Chieh Huo
- Institute of Cellular and System Medicine, National Health Research Institutes, Miaoli 35053, Taiwan
| | - Ming-Hui Chen
- Neuroscience Research Center, Kaohsiung Medical University, Kaohsiung City 80708, Taiwan
| | - Tzyh-Chyuan Hour
- Neuroscience Research Center, Kaohsiung Medical University, Kaohsiung City 80708, Taiwan
- Department of Biochemistry, School of Medicine, Kaohsiung Medical University, Kaohsiung City 80708, Taiwan
| | - Ling-Chun Huang
- Department of Biochemistry, School of Medicine, Kaohsiung Medical University, Kaohsiung City 80708, Taiwan
- Department of Neurology, Kaohsiung Municipal Ta-Tung Hospital, Kaohsiung Medical University, Kaohsiung City 80145, Taiwan
- Department of Neurology, Kaohsiung Medical University Hospital, Kaohsiung City 80756, Taiwan
| | - Yi-On Fong
- Department of Neurology, Kaohsiung Medical University Hospital, Kaohsiung City 80756, Taiwan
| | - Ying-Yu Kuo
- Institute of Cellular and System Medicine, National Health Research Institutes, Miaoli 35053, Taiwan
| | - Yuan-Han Yang
- Neuroscience Research Center, Kaohsiung Medical University, Kaohsiung City 80708, Taiwan
- Department of Neurology, Kaohsiung Municipal Ta-Tung Hospital, Kaohsiung Medical University, Kaohsiung City 80145, Taiwan
- Department of Neurology, Kaohsiung Medical University Hospital, Kaohsiung City 80756, Taiwan
- School of Post-Baccalaureate Medicine, Kaohsiung Medical University, Kaohsiung City 80708, Taiwan
- Correspondence: (Y.-H.Y.); (C.-P.C.); Tel.: +886-7-3162-158 (Y.-H.Y.); +886-37-206-166 (ext. 37300) (C.-P.C.)
| | - Chih-Pin Chuu
- Institute of Cellular and System Medicine, National Health Research Institutes, Miaoli 35053, Taiwan
- Department of Life Sciences, National Central University, Taoyuan City 32031, Taiwan
- PhD Program for Aging, Graduate Institute of Basic Medical Science, China Medical University, Taichung City 40402, Taiwan
- Biotechnology Center, National Chung Hsing University, Taichung City 40227, Taiwan
- Correspondence: (Y.-H.Y.); (C.-P.C.); Tel.: +886-7-3162-158 (Y.-H.Y.); +886-37-206-166 (ext. 37300) (C.-P.C.)
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Zhao T, Alder NN, Starkweather AR, Chen MH, Matson AP, Xu W, Balsbaugh JL, Cong X. Associations of Mitochondrial Function, Stress, and Neurodevelopmental Outcomes in Early Life: A Systematic Review. Dev Neurosci 2022; 44:438-454. [PMID: 35995037 PMCID: PMC9928905 DOI: 10.1159/000526491] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Accepted: 07/18/2022] [Indexed: 11/19/2022] Open
Abstract
Early life stress is commonly experienced by infants, especially preterm infants, and may impact their neurodevelopmental outcomes in their early and later lives. Mitochondrial function/dysfunction may play an important role underlying the linkage of prenatal and postnatal stress and neurodevelopmental outcomes in infants. This review aimed to provide insights on the relationship between early life stress and neurodevelopment and the mechanisms of mitochondrial function/dysfunction that contribute to the neuropathology of stress. The Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) statement was used to develop this systematic review. PubMed, Scopus, PsycINFO, and Biosis databases were searched for primary research articles published between 2010 and 2021 that examined the relationships among mitochondrial function/dysfunction, infant stress, and neurodevelopment. Thirty studies were identified. There is evidence to support that mitochondrial function/dysfunction mediates the relationship between prenatal and postnatal stress and neurodevelopmental outcomes in infants. Maternal transgenerational transmission of mitochondrial bioenergetic patterns influenced prenatal stress induced neurodevelopmental outcomes and behavioral changes in infants. Multiple functionally relevant mitochondrial proteins, genes, and polymorphisms were associated with stress exposure. This is the first review of the role that mitochondrial function/dysfunction plays in the association between stress and neurodevelopmental outcomes in full-term and preterm infants. Although multiple limitations were found based on the lack of data on the influence of biological sex, and due to invasive sampling, and lack of longitudinal data, many genes and proteins associated with mitochondrial function/dysfunction were found to influence neurodevelopmental outcomes in the early life of infants.
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Affiliation(s)
- Tingting Zhao
- School of Nursing, University of Connecticut, Storrs, Connecticut, USA,
| | - Nathan N Alder
- Department of Molecular and Cell Biology, University of Connecticut, Storrs, Connecticut, USA
| | | | - Ming-Hui Chen
- Department of Statistics, University of Connecticut, Storrs, Connecticut, USA
| | - Adam P Matson
- Division of Neonatology, Connecticut Children's Medical Center, Hartford, Connecticut, USA
- Department of Pediatrics, University of Connecticut School of Medicine, Farmington, Connecticut, USA
| | - Wanli Xu
- School of Nursing, University of Connecticut, Storrs, Connecticut, USA
| | - Jeremy L Balsbaugh
- Proteomics and Metabolomics Facility, University of Connecticut, Storrs, Connecticut, USA
| | - Xiaomei Cong
- School of Nursing, University of Connecticut, Storrs, Connecticut, USA
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Yan JG, Wu XF, Chen MH, Dai Z, Wang YD, Ma SC. [Spectral characteristics of sesquiterpene pyridine alkaloids from Tripterygium plants]. Zhongguo Zhong Yao Za Zhi 2022; 47:4292-4304. [PMID: 36046855 DOI: 10.19540/j.cnki.cjcmm.20211207.202] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Sesquiterpene pyridine alkaloids are important components in Tripterygium plants, possessing a wide range of pharmacological activities, such as anti-inflammation immunosuppression, anti-tumor, anti-virus, and deinsectization, and are of great research value. They are composed of highly oxidized dihydro-β-furansquiterpene and pyridine dicarboxylic acid through ester bonds. According to the structural characteristics of pyridine dicarboxylic acid fragments, they can be divided into various structural subtypes. Up to now, more than 110 sesquiterpene pyridine alkaloids have been isolated and identified from Tripterygium plants. This study reviewed the structural features and spectral(i.e., UV, IR, MS, and NMR) characteristics of sesquiterpene pyridine alkaloids and summarized the structural elucidation process in detail to provide references for their further research and development.
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Affiliation(s)
- Jian-Gong Yan
- National Institutes for Food and Drug Control Beijing 100050, China Traditional Chinese Medicine Processing Technology Innovation Center of Hebei Province, Hebei University of Chinese Medicine Shijiazhuang 050200, China
| | - Xian-Fu Wu
- National Institutes for Food and Drug Control Beijing 100050, China
| | - Ming-Hui Chen
- National Institutes for Food and Drug Control Beijing 100050, China
| | - Zhong Dai
- National Institutes for Food and Drug Control Beijing 100050, China
| | - Ya-Dan Wang
- National Institutes for Food and Drug Control Beijing 100050, China
| | - Shuang-Cheng Ma
- National Institutes for Food and Drug Control Beijing 100050, China
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Chen J, Zhang Y, Barandouzi ZA, Lee J, Zhao T, Xu W, Chen MH, Feng B, Starkweather A, Cong X. The effect of self-management online modules plus nurse-led support on pain and quality of life among young adults with irritable bowel syndrome: A randomized controlled trial. Int J Nurs Stud 2022; 132:104278. [PMID: 35640500 PMCID: PMC10588769 DOI: 10.1016/j.ijnurstu.2022.104278] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2022] [Revised: 04/20/2022] [Accepted: 04/25/2022] [Indexed: 11/19/2022]
Abstract
BACKGROUND Irritable bowel syndrome is a chronic pain condition that needs life-long self-management. However, the effect of self-management among young adults with irritable bowel syndrome is limited. OBJECTIVES This study aimed to examine the effect of a nurse-led self-management program on pain, symptoms, and quality of life among young adults with irritable bowel syndrome. DESIGN A randomized controlled trial. SETTINGS AND PARTICIPANTS Eighty young adults with irritable bowel syndrome recruited from two campuses of a public university and two gastrointestinal clinics were randomly assigned into a self-management online education and learning modules alone group (Online Modules, n = 41) or a nurse-led one-to-one consultation plus self-management online education and learning modules group (Nurse-Led Online Modules, n = 39). Twenty-one healthy controls were also recruited from these two campuses. METHODS Both the intervention groups received ten online modules after baseline data collection. Participants in the Nurse-Led Online Modules group received additional three nurse-led one-to-one consultations at baseline, 6- and 12-week follow-ups. Self-reported pain, symptoms, quality of life, self-efficacy for managing chronic disease, and coping were measured at baseline, and 6- and 12-week follow-ups among the participants with irritable bowel syndrome. The healthy controls completed data collection of pain and symptoms at baseline and the 12-week follow-up. The intervention effects across study time points and the comparisons between the two interventional groups were analyzed using linear mixed models. A longitudinal mediation analysis was also conducted to explore the mediation effects of self-management mechanisms of the interventions. RESULTS Both the intervention groups showed significant interventional effects on decreasing pain intensity and pain interference and increasing quality of life at the 12-week follow-up (all p < 0.05). At the 12-week follow-up, the Nurse-Led Online Modules significantly reduced anxiety (p = 0.016) and had a significant greater improvement in quality of life than the Online Modules (p = 0.040). Increased self-efficacy mediated the intervention effect of the Nurse-Led Online Modules group on reducing pain interference and improving quality of life, while the effect of the Online Modules was mediated through decreasing inefficient coping strategy-catastrophizing. CONCLUSIONS This study showed that both the pain self-management online education and nurse-led intervention were effective for alleviating pain and improving quality of life among young adults with irritable bowel syndrome by targeting the self-management process. The nurse-led intervention had a better outcome than the online education alone in improving quality of life. REGISTRATION NUMBER NCT03332537.
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Affiliation(s)
- Jie Chen
- University of Connecticut, School of Nursing, 231 Glenbrook Road, Unit 4026, Storrs, CT 06269-4026, United States of America; Department of Pain and Translational Symptom Science, University of Maryland School of Nursing, 655 W. Lombard St., Baltimore, MD 21201, United States of America.
| | - Yiming Zhang
- University of Connecticut, Department of Statistics, 215 Glenbrook Road, U-4120, Storrs, CT 06269-4120, United States of America.
| | - Zahra Amirkhanzadeh Barandouzi
- University of Connecticut, School of Nursing, 231 Glenbrook Road, Unit 4026, Storrs, CT 06269-4026, United States of America; Emory University, School of Nursing, 1520 Clifton Rd, Atlanta, GA 30322, United States of America.
| | - Joochul Lee
- University of Connecticut, Department of Statistics, 215 Glenbrook Road, U-4120, Storrs, CT 06269-4120, United States of America.
| | - Tingting Zhao
- University of Connecticut, School of Nursing, 231 Glenbrook Road, Unit 4026, Storrs, CT 06269-4026, United States of America.
| | - Wanli Xu
- University of Connecticut, School of Nursing, 231 Glenbrook Road, Unit 4026, Storrs, CT 06269-4026, United States of America.
| | - Ming-Hui Chen
- University of Connecticut, Department of Statistics, 215 Glenbrook Road, U-4120, Storrs, CT 06269-4120, United States of America.
| | - Bin Feng
- University of Connecticut, Department of Biomedical Engineering, 260 Glenbrook Road, U-3247, Storrs, CT 06269-3247, United States of America.
| | - Angela Starkweather
- University of Connecticut, School of Nursing, 231 Glenbrook Road, Unit 4026, Storrs, CT 06269-4026, United States of America.
| | - Xiaomei Cong
- University of Connecticut, School of Nursing, 231 Glenbrook Road, Unit 4026, Storrs, CT 06269-4026, United States of America.
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Tilki D, Chen MH, Wu J, Huland H, Graefen M, D'Amico AV. Adjuvant Versus Early Salvage Radiation Therapy After Radical Prostatectomy for pN1 Prostate Cancer and the Risk of Death. J Clin Oncol 2022; 40:2186-2192. [PMID: 35290082 PMCID: PMC9273369 DOI: 10.1200/jco.21.02800] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
PURPOSE An association with a reduction in the risk of all-cause mortality (ACM) and the use of adjuvant as compared with early postradical prostatectomy salvage radiation therapy (sRT) in men with pN1 prostate cancer (PC) has been observed. Yet, whether this finding applies irrespective of the number of positive lymph nodes (LNs) after adjusting for the time-dependent use and duration of androgen deprivation therapy is unknown and is addressed in the current study. METHODS Univariable and multivariable Cox regression was used to evaluate whether the ACM risk ratio for time-dependent use of adjuvant versus early sRT per unit increase in positive pelvic LNs was significantly reduced. Adjusted ACM estimates were calculated among men who received adjuvant, early salvage, or no RT stratified by one to three or four or more positive pelvic LNs. RESULTS After a median follow-up of 7.02 years, 986 (5.50%) men died, with 223 (22.62%) of PC. Adjuvant compared with early sRT was associated with a significantly lower ACM risk per unit increase in positive pelvic LNs (adjusted hazard ratio: 0.92; 95% CI, 0.85 to 0.99; P = .03). A significant difference in the 7-year adjusted ACM estimates favoring aRT versus early sRT was observed in men with four or more positive LNs (7.74% v 23.36%) in that the 95% CI for the 15.62% difference (5.90 to 25.35) excluded 0.00, but this was not true for men with 1-3 positive LNs (14.27% v 13.89%; 95% CI for the 0.38% difference [-7.02 to 7.79]). CONCLUSION Adjuvant compared with early sRT in men with pN1 PC was associated with a decreased ACM risk, and this reduction increased with each additional positive pelvic LN.
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Affiliation(s)
- Derya Tilki
- Martini-Klinik Prostate Cancer Center, University Hospital-Hamburg-Eppendorf, Hamburg, Germany,Department of Urology, University Hospital Hamburg-Eppendorf, Hamburg, Germany,Department of Urology, Koc University Hospital, Istanbul, Turkey
| | - Ming-Hui Chen
- Unversity of Connecticut, Department of Statistics, Storrs, CT
| | - Jing Wu
- University of Rhode Island, Department of Computer Science and Statistics, Kingston, RI
| | - Hartwig Huland
- Martini-Klinik Prostate Cancer Center, University Hospital-Hamburg-Eppendorf, Hamburg, Germany
| | - Markus Graefen
- Martini-Klinik Prostate Cancer Center, University Hospital-Hamburg-Eppendorf, Hamburg, Germany
| | - Anthony V. D'Amico
- Brigham and Women's Hospital and Dana Farber Cancer Institute, Department of Radiation Oncology, Boston, MA,Anthony V. D'Amico, MD, PhD, Brigham and Women's Hospital and Dana Farber Cancer Institute, 75 Francis Street, Boston, MA 02115; e-mail:
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Zhang J, Zhang YY, Tao J, Chen MH. Bayesian Item Response Theory Models With Flexible Generalized Logit Links. Appl Psychol Meas 2022; 46:382-405. [PMID: 35812812 PMCID: PMC9265488 DOI: 10.1177/01466216221089343] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
In educational and psychological research, the logit and probit links are often used to fit the binary item response data. The appropriateness and importance of the choice of links within the item response theory (IRT) framework has not been investigated yet. In this paper, we present a family of IRT models with generalized logit links, which include the traditional logistic and normal ogive models as special cases. This family of models are flexible enough not only to adjust the item characteristic curve tail probability by two shape parameters but also to allow us to fit the same link or different links to different items within the IRT model framework. In addition, the proposed models are implemented in the Stan software to sample from the posterior distributions. Using readily available Stan outputs, the four Bayesian model selection criteria are computed for guiding the choice of the links within the IRT model framework. Extensive simulation studies are conducted to examine the empirical performance of the proposed models and the model fittings in terms of "in-sample" and "out-of-sample" predictions based on the deviance. Finally, a detailed analysis of the real reading assessment data is carried out to illustrate the proposed methodology.
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Affiliation(s)
- Jiwei Zhang
- Faculty of Education Northeast Normal University, Changchun, China
| | - Ying-Ying Zhang
- Department of Statistics and Actuarial Science, Chongqing University, Chongqing, China
| | - Jian Tao
- School of Mathematics and Statistics, Northeast Normal University, Changchun, China
| | - Ming-Hui Chen
- Department of Statistics, University of Connecticut, Storrs, CT, USA
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Yuan W, Chen MH, Zhong J. Bayesian Design of Superiority Trials: Methods and Applications. Stat Biopharm Res 2022; 14:433-443. [PMID: 36968644 PMCID: PMC10035591 DOI: 10.1080/19466315.2022.2090429] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
In this paper, we lay out the basic elements of Bayesian sample size determination (SSD) for the Bayesian design of a two-arm superiority clinical trial. We develop a flowchart of the Bayesian SSD that highlights the critical components of a Bayesian design and provides a practically useful roadmap for designing a Bayesian clinical trial in real world applications. We empirically examine the amount of borrowing, the choice of noninformative priors, and the impact of model misspecification on the Bayesian type I error and power. A formal and statistically rigorous formulation of conditional borrowing within the decision rule framework is developed. Moreover, by extending the partial borrowing power priors, a new borrowing-by-parts power prior for incorporating historical data is proposed. Computational algorithms are also developed to calculate the Bayesian type I error and power. Extensive simulation studies are carried out to explore the operating characteristics of the proposed Bayesian design of a superiority trial.
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Affiliation(s)
- Wenlin Yuan
- Department of Statistics, University of Connecticut at Storrs, CT 06269
| | - Ming-Hui Chen
- Department of Statistics, University of Connecticut at Storrs, CT 06269
| | - John Zhong
- REGENXBIO Inc., 9804 Medical Center Drive, Rockville, MD 20850
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Zhang KN, Wang CZ, Lü QF, Chen MH. Enzymatic hydrolysis lignin functionalized Ti 3C 2T x nanosheets for effective removal of MB and Cu 2+ ions. Int J Biol Macromol 2022; 209:680-691. [PMID: 35413323 DOI: 10.1016/j.ijbiomac.2022.04.036] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2022] [Revised: 03/26/2022] [Accepted: 04/05/2022] [Indexed: 11/28/2022]
Abstract
Functionalized two-dimensional Ti3C2Tx (TN-EHL) was prepared as an effective adsorbent for removal of methylene blue dye (MB) and copper ions (Cu2+). Enzymatic hydrolysis lignin (EHL), a reproducible natural resource, was used to functionalize the Ti3C2Tx nanosheets. EHL can not only introduce active functional groups into TN-EHL but also prevent the oxidation of Ti3C2Tx, thus promoting the adsorption performance of TN-EHL. The maximum adsorption capacities of TN-EHL50 (in which the EHL content is 50 wt%) for MB and Cu2+ were 293.7 mg g-1 and 49.96 mg g-1, respectively. The higher correlation coefficients (R2) of MB (0.9996) and Cu2+ (0.9995) indicating that their adsorption processes can be described by the pseudo-second-order kinetic model. The MB adsorption data fit the Freundlich isotherm with R2 of 0.9953, whereas the Cu2+ ions adsorption data fit the Langmuir isotherm with R2 of 0.9998. The thermodynamic analysis indicates that the adsorption process of MB and Cu2+ on TN-EHL50 is spontaneous and endothermic. Significantly, the Cu2+ ions were reduced to Cu2O and CuO particles during the adsorption process. Therefore, TN-EHL has a great potential as an environmentally friendly adsorbent for MB removal and recovery of Cu2+ ions from wastewater.
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Affiliation(s)
- Kai-Ning Zhang
- College of Materials Science and Engineering, Fuzhou University, 2 Wulongjiang North Avenue, Fuzhou 350108, China
| | - Cheng-Zhen Wang
- College of Materials Science and Engineering, Fuzhou University, 2 Wulongjiang North Avenue, Fuzhou 350108, China
| | - Qiu-Feng Lü
- College of Materials Science and Engineering, Fuzhou University, 2 Wulongjiang North Avenue, Fuzhou 350108, China.
| | - Ming-Hui Chen
- College of Materials Science and Engineering, Fuzhou University, 2 Wulongjiang North Avenue, Fuzhou 350108, China
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Gelfond JA, Hernandez B, Goros M, Ibrahim JG, Chen MH, Sun W, Leach RJ, Kattan MW, Thompson IM, Ankerst DP, Liss M. Prediction of future risk of any and higher-grade prostate cancer based on the PLCO and SELECT trials. BMC Urol 2022; 22:45. [PMID: 35351104 PMCID: PMC8966358 DOI: 10.1186/s12894-022-00986-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2021] [Accepted: 03/01/2022] [Indexed: 12/12/2022] Open
Abstract
Background A model was built that characterized effects of individual factors on five-year prostate cancer (PCa) risk in the Prostate, Lung, Colon, and Ovarian Cancer Screening Trial (PLCO) and the Selenium and Vitamin E Cancer Prevention Trial (SELECT). This model was validated in a third San Antonio Biomarkers of Risk (SABOR) screening cohort. Methods A prediction model for 1- to 5-year risk of developing PCa and Gleason > 7 PCa (HG PCa) was built on PLCO and SELECT using the Cox proportional hazards model adjusting for patient baseline characteristics. Random forests and neural networks were compared to Cox proportional hazard survival models, using the trial datasets for model building and the SABOR cohort for model evaluation. The most accurate prediction model is included in an online calculator. Results The respective rates of PCa were 8.9%, 7.2%, and 11.1% in PLCO (n = 31,495), SELECT (n = 35,507), and SABOR (n = 1790) over median follow-up of 11.7, 8.1 and 9.0 years. The Cox model showed higher prostate-specific antigen (PSA), BMI and age, and African American race to be associated with PCa and HGPCa. Five-year risk predictions from the combined SELECT and PLCO model effectively discriminated risk in the SABOR cohort with C-index 0.76 (95% CI [0.72, 0.79]) for PCa, and 0.74 (95% CI [0.65,0.83]) for HGPCa. Conclusions A 1- to 5-year PCa risk prediction model developed from PLCO and SELECT was validated with SABOR and implemented online. This model can individualize and inform shared screening decisions. Supplementary Information The online version contains supplementary material available at 10.1186/s12894-022-00986-w.
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Affiliation(s)
- Jonathan A Gelfond
- Department of Population Health Sciences, Mail Code 7933, 7703 Floyd Curl Drive, San Antonio, TX, 78229-3900, USA.
| | - Brian Hernandez
- Department of Population Health Sciences, Mail Code 7933, 7703 Floyd Curl Drive, San Antonio, TX, 78229-3900, USA
| | - Martin Goros
- Department of Population Health Sciences, Mail Code 7933, 7703 Floyd Curl Drive, San Antonio, TX, 78229-3900, USA
| | - Joseph G Ibrahim
- Department of Biostatistics, University of North Carolina, Chapel Hill, NC, USA
| | - Ming-Hui Chen
- Department of Statistics, University of Connecticut, New Haven, NC, USA
| | - Wei Sun
- Biostatistics Program, The Fred Hutchinson Cancer Research Center, Seattle, WA, USA
| | - Robin J Leach
- Department of Urology and Mays Cancer Center, University of Texas Health at San Antonio, San Antonio, TX, USA
| | - Michael W Kattan
- Department of Quantitative Health Sciences, Cleveland Clinic, Cleveland, OH, USA
| | - Ian M Thompson
- Department of Urology and Mays Cancer Center, University of Texas Health at San Antonio, San Antonio, TX, USA.,CHRISTUS Santa Rosa Hospital - Medical Center, San Antonio, TX, USA
| | - Donna Pauler Ankerst
- Department of Urology and Mays Cancer Center, University of Texas Health at San Antonio, San Antonio, TX, USA.,Departments of Mathematics, Life Sciences, Technical University of Munich, Munich, Germany
| | - Michael Liss
- Department of Urology and Mays Cancer Center, University of Texas Health at San Antonio, San Antonio, TX, USA
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Sakaki JR, Rodriguez NR, Fernandez ML, Puglisi MJ, Chen MH, Chun OK. Fruit juice and childhood obesity: a review of epidemiologic studies. Crit Rev Food Sci Nutr 2022; 63:6723-6737. [PMID: 35225098 DOI: 10.1080/10408398.2022.2044284] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Childhood obesity is a national epidemic, and many efforts have been made to understand its risk factors. The purpose of this review was to provide an updated account of the observational studies evaluating the relationship between 100% fruit juice intake and obesity in children and adolescents, and to highlight the major risk factors that may impact this relationship. PubMed and Scopus were searched for terms related to fruit juice and childhood obesity, and studies assessing 100% fruit juice intake in participants ≤ 19 years old, with obesity-related outcomes (BMI or adiposity), and published before March 9, 2021 were included. There were 17 prospective cohort and 14 cross-sectional studies included in the analysis. Overall, the evidence does not support a relationship between 100% fruit juice intake and measures of obesity in most children. There is some evidence to suggest a minor positive association in some overweight or very young children, but due to fundamental differences and limitations in methodology, further investigation is required. Significant gaps in literature on this topic exist particularly in regards to randomized clinical trials in children, and in studies in racially diverse populations.
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Affiliation(s)
- Junichi R Sakaki
- Department of Nutritional Sciences, University of Connecticut, Storrs, Connecticut, USA
| | - Nancy R Rodriguez
- Department of Nutritional Sciences, University of Connecticut, Storrs, Connecticut, USA
| | - Maria-Luz Fernandez
- Department of Nutritional Sciences, University of Connecticut, Storrs, Connecticut, USA
| | - Michael J Puglisi
- Department of Nutritional Sciences, University of Connecticut, Storrs, Connecticut, USA
| | - Ming-Hui Chen
- Department of Statistics, University of Connecticut, Storrs, Connecticut, USA
| | - Ock K Chun
- Department of Nutritional Sciences, University of Connecticut, Storrs, Connecticut, USA
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