1
|
Raviol J, Plet G, Hasegawa R, Yu K, Kosukegawa H, Ohta M, Magoariec H, Pailler-Mattei C. Towards the mechanical characterisation of unruptured intracranial aneurysms: Numerical modelling of interactions between a deformation device and the aneurysm wall. J Mech Behav Biomed Mater 2024; 153:106469. [PMID: 38402693 DOI: 10.1016/j.jmbbm.2024.106469] [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: 12/05/2023] [Revised: 02/13/2024] [Accepted: 02/15/2024] [Indexed: 02/27/2024]
Abstract
Intracranial aneurysm is a critical pathology related to the arterial wall deterioration. This work is an essential aspect of a large scale project aimed at providing clinicians with a non-invasive patient-specific decision support tool regarding the rupture risk assessment. A machine learning algorithm links the aneurysm shape observed and a database of UIA clinical images associated with in vivo wall mechanical properties and rupture characterisation. The database constitution is derived from a device prototype coupled with medical imaging. It provides the mechanical characterisation of the aneurysm from the wall deformation obtained by inverse analysis based on the variation of luminal volume. Before performing in vivo tests of the device on small animals, a numerical model was built to quantify the device's impact on the aneurysm wall under natural blood flow conditions. As the clinician will never be able to precisely situate the device, several locations were considered. In preparation for the inverse analysis procedure, artery material laws of increasing complexity were studied (linear elastic, hyper elastic Fung-like). Considering all the device locations and material laws, the device induced relative displacements to the Systole peak (worst case scenario with the highest mechanical stimulus linked to the blood flow) ranging from 375 μm to 1.28 mm. The variation of luminal volume associated with the displacements was between 0.95 % and 4.3 % compared to the initial Systole volume of the aneurysm. Significant increase of the relative displacements and volume variations were found with the study of different cardiac cycle moments between the blood flow alone and the device application. For forthcoming animal model studies, Spectral Photon CT Counting, with a minimum spatial resolution of 250 μm, was selected as the clinical imaging technique. Based on this preliminary study, the displacements and associated volume variations (baseline for inverse analyse), should be observable and exploitable.
Collapse
Affiliation(s)
- J Raviol
- Laboratoire de Tribologie et Dynamique des Systèmes, CNRS UMR 5513, Université de Lyon, École Centrale de Lyon, France
| | - G Plet
- Laboratoire de Tribologie et Dynamique des Systèmes, CNRS UMR 5513, Université de Lyon, École Centrale de Lyon, France
| | - R Hasegawa
- Graduate School of Engineering, Tohuku University, 980-8579, Sendai Miyagi, Japan; Institute of Fluid Science, Tohuku University, 980-8577, Sendai Miyagi, Japan
| | - K Yu
- Institute of Fluid Science, Tohuku University, 980-8577, Sendai Miyagi, Japan
| | - H Kosukegawa
- Institute of Fluid Science, Tohuku University, 980-8577, Sendai Miyagi, Japan
| | - M Ohta
- Institute of Fluid Science, Tohuku University, 980-8577, Sendai Miyagi, Japan; ElyT MaX, CNRS UMI 3537, Université de Lyon, Tohoku University, France, Japan
| | - H Magoariec
- Laboratoire de Tribologie et Dynamique des Systèmes, CNRS UMR 5513, Université de Lyon, École Centrale de Lyon, France
| | - C Pailler-Mattei
- Laboratoire de Tribologie et Dynamique des Systèmes, CNRS UMR 5513, Université de Lyon, École Centrale de Lyon, France; ISPB-Faculté de Pharmacie, Université Claude Bernard Lyon 1, Université de Lyon, France.
| |
Collapse
|
2
|
Sang D, Dong B, Yu K, Tian J. Ferric Chloride-Mediated Transacylation of N-Acylsulfonamides. J Org Chem 2024; 89:2306-2319. [PMID: 38272854 DOI: 10.1021/acs.joc.3c02288] [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: 01/27/2024]
Abstract
Transacylation of N-acylsulfonamides, which replaces the N-acyl group with a new one, is a challenging and underdeveloped fundamental transformation. Herein, a general method for transacylation of N-acylsulfonamides is presented. The transformation is enabled by coincident catalytic reactivities of FeCl3 for nonhydrolytic deacylation of N-acylsulfonamides and subsequent acylation of the resultant sulfonamides and can be conducted either stepwise or in a one-pot manner. GaCl3 and RuCl3·xH2O are similarly effective for the reaction. This method is mild, efficient, and operationally simple. A variety of functional groups such as halogeno, keto, nitro, cyano, ether, and ester are well tolerated, providing the transacylation products in good to excellent yields.
Collapse
Affiliation(s)
- Dayong Sang
- College of Chemical Engineering and Pharmacy, Jingchu University of Technology, Jingmen, Hubei 448000, P. R. China
| | - Bingqian Dong
- College of Chemical Engineering and Pharmacy, Jingchu University of Technology, Jingmen, Hubei 448000, P. R. China
| | - Kangkang Yu
- College of Biotechnology, Jingchu University of Technology, Jingmen, Hubei 448000, P. R. China
| | - Juan Tian
- College of Chemical Engineering and Pharmacy, Jingchu University of Technology, Jingmen, Hubei 448000, P. R. China
- Hubei Provincial Key Laboratory of Drug Synthesis and Optimization, Jingmen, Hubei 448000, P. R. China
| |
Collapse
|
3
|
Li X, Zheng Y, Yu K, Hou S, Cui H, Yin R, Zhou Y, Sun Q, Zhang J, Huang C. Stomatin-like protein 2 promotes cell proliferation and survival under 5-Fluorouracil stress in hepatocellular carcinoma. Mol Biol Rep 2024; 51:228. [PMID: 38281294 DOI: 10.1007/s11033-023-09104-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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2023] [Accepted: 12/05/2023] [Indexed: 01/30/2024]
Abstract
BACKGROUND The crucial role of STOML2 in tumor progression has been documented recently in various cancers. Previous studies have shown that STOML2 promoted cancer cell proliferation, but the underlying mechanism is not fully illustrated. METHODS AND RESULTS The expression and clinical relevance of STOML2 in pan-cancer was analyzed by TIMER2 web platform in pan-cancer. The prognostic significance of STOML2 in HCC was evaluated utilizing KM curve and a nomogram model. Signaling pathways associated with STOML2 expression were discovered by GSEA. CCK-8 assay was performed to evaluate the proliferative capacity of HCC cells after manipulating STOML2 expression. Flow cytometry was utilized to analyze cell cycle progression. Results indicated that increased STOML2 expression in HCC linked to unfavorable clinical outcomes. Cell cycle and cell division related terms were enriched under conditions of elevated STOML2 expression via GSEA analysis. A notable decrease in cell proliferation was observed in MHCC97H with STOML2 knocked-down, accompanied by G1-phase arrest, up-regulation of p21, down-regulation of CyclinD1 and its regulatory factor MYC, while STOML2 overexpression in Huh7 showed the opposite results. These results indicated that STOML2 was responsible for HCC proliferation by regulating the expression level of MYC/cyclin D1 and p21. Furthermore, an inverse correlation was found between STOML2 expression and 5-FU sensitivity. CONCLUSIONS STOML2 promotes cell cycle progression in HCC which is associated with activation of MYC/CyclinD1/p21 pathway, and modulates the response of HCC to 5-FU.
Collapse
Affiliation(s)
- Xiaoqi Li
- Department of Infectious Diseases, Huashan Hospital, Fudan University, 12 Middle Urumqi Road, Shanghai, 200040, China
| | - Yahui Zheng
- Department of Infectious Diseases, Huashan Hospital, Fudan University, 12 Middle Urumqi Road, Shanghai, 200040, China
| | - Kangkang Yu
- Department of Infectious Diseases, Huashan Hospital, Fudan University, 12 Middle Urumqi Road, Shanghai, 200040, China
| | - Sen Hou
- Department of General Surgery, Xuchang Central Hospital, 30 Huatuo Road, Xuchang, 461001, Henan, China
| | - Huxiao Cui
- Department of General Surgery, Xuchang Central Hospital, 30 Huatuo Road, Xuchang, 461001, Henan, China
| | - Ruiqi Yin
- Department of Infectious Diseases, Huashan Hospital, Fudan University, 12 Middle Urumqi Road, Shanghai, 200040, China
| | - Yu Zhou
- Department of Infectious Disease, the Third Affiliated Hospital of Wenzhou Medical University, 108 Wansong Road, Ruian, 325207, Zhejiang, China.
| | - Qingfeng Sun
- Department of Infectious Disease, the Third Affiliated Hospital of Wenzhou Medical University, 108 Wansong Road, Ruian, 325207, Zhejiang, China.
| | - Jubo Zhang
- Department of Infectious Diseases, Huashan Hospital, Fudan University, 12 Middle Urumqi Road, Shanghai, 200040, China.
| | - Chong Huang
- Department of Infectious Diseases, Huashan Hospital, Fudan University, 12 Middle Urumqi Road, Shanghai, 200040, China.
| |
Collapse
|
4
|
Wu CY, Yu K, Arnold SE, Das S, Dodge HH. Who Benefited Most from the Internet-Based Conversational Engagement RCT (I-CONECT)? Application of the Personalized Medicine Approach to a Behavioral Intervention Study. J Prev Alzheimers Dis 2024; 11:639-648. [PMID: 38706280 PMCID: PMC11061034 DOI: 10.14283/jpad.2024.41] [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: 09/27/2023] [Accepted: 01/09/2024] [Indexed: 05/07/2024]
Abstract
BACKGROUND Many Alzheimer's Disease (AD) clinical trials have failed to demonstrate treatment efficacy on cognition. It is conceivable that a complex disease like AD may not have the same treatment effect due to many heterogeneities of disease processes and individual traits. OBJECTIVES We employed an individual-level treatment response (ITR) approach to determine the characteristics of treatment responders and estimated time saved in cognitive decline using the Internet-based Conversational Engagement Clinical Trial (I-CONECT) behavioral intervention study as a model. DESIGN AND SETTING I-CONECT is a multi-site, single-blind, randomized controlled trial aimed to improve cognitive functions through frequent conversational interactions via internet/webcam. The experimental group engaged in video chats with study staff 4 times/week for 6 months; the control group received weekly 10-minute check-in phone calls. PARTICIPANTS Out of 186 randomized participants, current study used 139 participants with complete information on both baseline and 6-month follow-up (73 with mild cognitive impairment (MCI), 66 with normal cognition; 64 in the experimental group, and 75 in the control group). MEASUREMENTS ITR scores were generated for the Montreal Cognitive Assessment (MoCA) (global cognition, primary outcome) and Category Fluency Animals (CFA) (semantic fluency, secondary outcome) that showed significant efficacy in the trial. ITR scores were generated through 300 iterations of 3-fold cross-validated random forest models. The average treatment difference (ATD) curve and the area between the curves (ABC) were estimated to measure the heterogeneity of treatment responses. Responder traits were identified using SHapley Additive exPlanations (SHAP) and decision tree models. The time saved in cognitive decline was explored to gauge clinical meaningfulness. RESULTS ABC statistics showed substantial heterogeneity in treatment response with MoCA but modest heterogeneity in treatment response with CFA. Age, cognitive status, time spent with family and friends, education, and personality were important characteristics that influenced treatment responses. Intervention group participants in the upper 30% of ITR scores demonstrated potential delays of 3 months in semantic fluency (CFA) and 6 months in global cognition (MoCA), assuming a 5-fold faster natural cognitive decline compared to the control group during the post-treatment period. CONCLUSIONS ITR-based analyses are valuable in profiling treatment responders for features that can inform future trial design and clinical practice. Reliably measuring time saved in cognitive decline is an area of ongoing research to gain insight into the clinical meaningfulness of treatment.
Collapse
Affiliation(s)
- C-Y Wu
- Chao-Yi Wu, 149 13th floor, 10-003C, Boston, MA, USA, , 02129; 617-724-2428
| | | | | | | | | |
Collapse
|
5
|
Hou S, Yu K, Fei R. How does environmental regulation affect carbon productivity? The role of green technology progress and pollution transfer. J Environ Manage 2023; 345:118587. [PMID: 37442038 DOI: 10.1016/j.jenvman.2023.118587] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [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: 01/30/2023] [Revised: 06/08/2023] [Accepted: 07/03/2023] [Indexed: 07/15/2023]
Abstract
This empirical study examines the impact of environmental regulations on carbon productivity under varying conditions using panel data from Chinese provinces from 2011 to 2019. Prior research has reported inconsistent results regarding the relationships between these variables. We developed a spatial Durbin model (SDM) and tested the non-linear effects of environmental regulation on carbon productivity from a spatial linkage perspective. The results demonstrate a U-shaped curve representing the local-neighborhood effect of environmental regulations on carbon productivity. This curve is further dissected into two components: the average direct effect (ADE) and the average indirect effect (AIE). Furthermore, the findings indicate that green technology progress and pollution transfer act as moderating factors in shaping the U-shaped curve. Green technological progress has steepened the U-shape curve, whereas pollution transfer has flattened it. Based on these findings, we propose three recommendations for the formulation of environmental regulation policies.
Collapse
Affiliation(s)
- Shaobo Hou
- School of Agricultural Economics and Rural Development, Renmin University of China, Beijing, 100872, PR China
| | - Kangkang Yu
- School of Agricultural Economics and Rural Development, Renmin University of China, Beijing, 100872, PR China.
| | - Rilong Fei
- School of Economics, Wuhan University of Technology, Wuhan, Hubei, 430070, PR China
| |
Collapse
|
6
|
Reyngold M, O'Reilly E, Zinovoy M, Hajj C, Wu AJ, Cuaron J, Romesser PB, Varghese AM, Park W, Yu K, Khalil DN, Lu W, Tyagi N, Diaz LA, Crane CH. Favorable Survival after Definitive Ablative RT in Surgically Resectable Pancreatic Cancer Patients. Int J Radiat Oncol Biol Phys 2023; 117:e335. [PMID: 37785177 DOI: 10.1016/j.ijrobp.2023.06.2390] [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) Surgical resection has been considered the only curative option for patients with pancreatic adenocarcinoma (PDAC). Ablative RT ≥100Gy BED10 (A-RT) is associated with favorable survival in patients with locally advanced unresectable disease. We sought to evaluate A-RT outcomes in patients with technically resectable disease who did not undergo surgery. MATERIALS/METHODS Our prospectively maintained database of patients treated with A-RT was queried for consecutive patients with radiographic T1/T2 resectable PDAC. Patients were treated with a standardized technique within a large academic cancer center regional network. Ablative RT using several hypofractionated regimens was delivered on either standard Linacs with respiratory motion management, CBCT image guidance and selective adaptive replanning or MR-Linac with compression belt and daily on-line adaptive replanning. Freedom from local progression (FFLP), distant metastasis-free and overall survival (DMFS and OS, respectively) were analyzed using the Kaplan Meier estimates. RESULTS Between 2016 and 2022, 28 patients (54% male) with radiographically resectable PDAC received definitive A-RT. Median age was 80 (interquartile range, 77-84) years and 23 (82.1%) had KPS of 80 or below. Eighteen patients (64.3%) had T2 cancer, 5 (17.9%) were node positive, and 23 (82.1%) had head location. Median size was 2.6 (range, 1.6-4.0) cm with a median carbohydrate antigen 19-9 (CA19-9) of 160.5 (0-1823) U/mL. Twenty patients (71.4%) received induction chemotherapy for a median of 2.4 (0-6.2) months. RT regimens delivered on conventional Linacs unless otherwise indicated included 75Gy in 25 fractions (n = 15), 67.5Gy in 15 fractions (n = 10), 50Gy in 5 (N = 2, MR Linac), 60Gy in 10 (n = 1). 24-month FFLP and DMFS were 78.8% (52.3-91.7%) and 17.7% (95% CI, 5.8%-34.8%), respectively. 24-month and 48-month rate of OS from A-RT were 49.1% (95% CI, 27.53-67.5%) and 36.3 (95%16.0-57.1%). Grade 3 acute and late GI toxicity was noted in 3 and 1 patients, respectively, including 2 bleeding events treated with transfusions. There were no ≥ grade 4 events. CONCLUSION In patients with surgically resectable PDAC we found that definitive A-RT following multiagent induction therapy was associated with oncologic outcomes similar to resection with minimal toxicity.
Collapse
Affiliation(s)
- M Reyngold
- Department of Radiation Oncology, Memorial Sloan Kettering Cancer Center, New York, NY
| | - E O'Reilly
- Memorial Sloan Kettering Cancer Center, New York, NY
| | - M Zinovoy
- Department of Radiation Oncology, Memorial Sloan Kettering Cancer Center, New York, NY
| | - C Hajj
- Memorial Sloan Kettering Cancer Center, New York, NY
| | - A J Wu
- Department of Radiation Oncology, Memorial Sloan Kettering Cancer Center, New York, NY
| | - J Cuaron
- Department of Radiation Oncology, Memorial Sloan Kettering Cancer Center, New York, NY
| | - P B Romesser
- Department of Radiation Oncology, Memorial Sloan Kettering Cancer Center, New York, NY
| | - A M Varghese
- Memorial Sloan Kettering Cancer Center, New York, NY
| | - W Park
- Memorial Sloan Kettering Cancer Center, New York, NY
| | - K Yu
- Memorial Sloan Kettering Cancer Center, New York, NY
| | - D N Khalil
- Memorial Sloan Kettering Cancer Center, New York, NY
| | - W Lu
- Memorial Sloan Kettering Cancer Center, New York, NY
| | - N Tyagi
- Department of Medical Physics, Memorial Sloan Kettering Cancer Center, New York, NY
| | - L A Diaz
- Memorial Sloan Kettering Cancer Center, New York, NY
| | - C H Crane
- Memorial Sloan Kettering Cancer Center, New York, NY
| |
Collapse
|
7
|
Wu S, Li X, Huang G, Guo J, Zhang X, Liao L, Zhi W, Li K, Wang Y, Chu Z, Shang L, Yu X, Yu K, Xu W. Dissecting Sperm Mitochondrial G-Quadruplex Structures Using a Fluorescent Probe Biomarker to Monitor and Regulate Fertilization Capability. ACS Sens 2023; 8:2186-2196. [PMID: 37224082 PMCID: PMC10295354 DOI: 10.1021/acssensors.3c00068] [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: 01/11/2023] [Accepted: 05/09/2023] [Indexed: 05/26/2023]
Abstract
To monitor the levels of mitochondrial DNA G-quadruplexes (mtDNA G4s) in spermatozoa and to explore the possibility using mtDNA G4s as a reliable marker in patients with multiple clinical insemination failures, a novel chemical TPE-mTO probe engineered in our previous work was used on both samples from the mice sperm and from patients with fertilization failure. Expression of valosin-containing protein and the zona-free hamster egg assay were used to evaluate mitophagy and human sperm penetration. RNA-sequencing was used to explore expression changes of key genes affected by mtDNA G4s. Results showed that the probe can track mtDNA G4s in spermatozoa easily and quickly with fewer backgrounds. Significantly increased mtDNA G4s were also found in patients with fertilization failure, using the flow-cytometry-based TPE-mTO probe detection method. A sperm-hamster egg penetration experiment showed that abnormal fertilization caused by increased mtDNA G4s can be effectively restored by a mitophagy inducer. This study provides a novel method for monitoring etiological biomarkers in patients with clinical infertility and treatment for patients with abnormal fertilization caused by mtDNA G4 dysfunction.
Collapse
Affiliation(s)
- Sixian Wu
- Joint
Laboratory of Reproductive Medicine, SCU-CUHK, Key Laboratory of Obstetric,
Gynaecologic and Paediatric Diseases and Birth Defects of Ministry
of Education, West China Second University
Hospital, Med-X Centre for Manufacturing, Sichuan University, Chengdu 610041, People’s Republic of China
| | - Xiaoliang Li
- Joint
Laboratory of Reproductive Medicine, SCU-CUHK, Key Laboratory of Obstetric,
Gynaecologic and Paediatric Diseases and Birth Defects of Ministry
of Education, West China Second University
Hospital, Med-X Centre for Manufacturing, Sichuan University, Chengdu 610041, People’s Republic of China
- Reproduction
Medical Centre, West China Second University
Hospital, Sichuan University, Chengdu 610041, China
| | - Gelin Huang
- Joint
Laboratory of Reproductive Medicine, SCU-CUHK, Key Laboratory of Obstetric,
Gynaecologic and Paediatric Diseases and Birth Defects of Ministry
of Education, West China Second University
Hospital, Med-X Centre for Manufacturing, Sichuan University, Chengdu 610041, People’s Republic of China
| | - Juncen Guo
- Joint
Laboratory of Reproductive Medicine, SCU-CUHK, Key Laboratory of Obstetric,
Gynaecologic and Paediatric Diseases and Birth Defects of Ministry
of Education, West China Second University
Hospital, Med-X Centre for Manufacturing, Sichuan University, Chengdu 610041, People’s Republic of China
| | - Xueguang Zhang
- Joint
Laboratory of Reproductive Medicine, SCU-CUHK, Key Laboratory of Obstetric,
Gynaecologic and Paediatric Diseases and Birth Defects of Ministry
of Education, West China Second University
Hospital, Med-X Centre for Manufacturing, Sichuan University, Chengdu 610041, People’s Republic of China
| | - Lu Liao
- Puhua
Technology Co., Ltd., Chengdu 610200, China
| | - Weiwei Zhi
- Sichuan
Provincial Maternity and Child Health Care Hospital, Chengdu 610045, China
| | - Kun Li
- Key
Laboratory of Green Chemistry and Technology (Ministry of Education),
College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Yan Wang
- Reproduction
Medical Centre, West China Second University
Hospital, Sichuan University, Chengdu 610041, China
| | - Zhiwen Chu
- West
China School of Pharmacy, Sichuan University, Chengdu 610064, China
| | - Lijun Shang
- School of
Human Sciences, London Metropolitan University, London N7 8DB, U.K.
| | - Xiaoqi Yu
- Key
Laboratory of Green Chemistry and Technology (Ministry of Education),
College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Kangkang Yu
- Key
Laboratory of Bio-resources and Eco-environment (Ministry of Education),
College of Life Sciences, Sichuan University, Chengdu 610064, China
- Key
Laboratory of Green Chemistry and Technology (Ministry of Education),
College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Wenming Xu
- Joint
Laboratory of Reproductive Medicine, SCU-CUHK, Key Laboratory of Obstetric,
Gynaecologic and Paediatric Diseases and Birth Defects of Ministry
of Education, West China Second University
Hospital, Med-X Centre for Manufacturing, Sichuan University, Chengdu 610041, People’s Republic of China
| |
Collapse
|
8
|
Zhang J, Li C, An M, Wu Y, Yu K, Liu Y. Chinese expert consensus on the diagnosis and treatment of borderline developmental dysplasia of the hip (2022 Edition). Chin Med J (Engl) 2023; 136:1012-1014. [PMID: 37083120 PMCID: PMC10228468 DOI: 10.1097/cm9.0000000000002483] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Indexed: 04/22/2023] Open
Affiliation(s)
- Jia Zhang
- Department of Sports Medicine, Senior Department of Orthopedics, The Fourth Medical Center of Chinese PLA General Hospital, Beijing 100853, China
- Medical School of Chinese PLA, Beijing 100853, China
| | - Chunbao Li
- Department of Sports Medicine, Senior Department of Orthopedics, The Fourth Medical Center of Chinese PLA General Hospital, Beijing 100853, China
| | - Mingyang An
- Department of Sports Medicine, Senior Department of Orthopedics, The Fourth Medical Center of Chinese PLA General Hospital, Beijing 100853, China
- Medical School of Chinese PLA, Beijing 100853, China
| | - Yidong Wu
- Department of Sports Medicine, Senior Department of Orthopedics, The Fourth Medical Center of Chinese PLA General Hospital, Beijing 100853, China
- Medical School of Chinese PLA, Beijing 100853, China
| | - Kangkang Yu
- Department of Sports Medicine, Senior Department of Orthopedics, The Fourth Medical Center of Chinese PLA General Hospital, Beijing 100853, China
- Medical School of Chinese PLA, Beijing 100853, China
| | - Yujie Liu
- Department of Sports Medicine, Senior Department of Orthopedics, The Fourth Medical Center of Chinese PLA General Hospital, Beijing 100853, China
| |
Collapse
|
9
|
Kalra S, Peyser R, Ho J, Babbin C, Bohan N, Cortes A, Erley J, Fatima M, Flinn J, Horwitz E, Hsu R, Lee W, Lu V, Narch A, Navas D, Okoroafor K, Ouanemalay E, Ross S, Sowole F, Specht E, Woo J, Yu K, Coolon JD. Genome-wide gene expression responses to experimental manipulation of Saccharomyces cerevisiae repressor activator protein 1 (Rap1) expression level. Genomics 2023; 115:110625. [PMID: 37068644 DOI: 10.1016/j.ygeno.2023.110625] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [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: 11/21/2022] [Revised: 02/24/2023] [Accepted: 04/13/2023] [Indexed: 04/19/2023]
Abstract
Precise regulation of transcription in gene expression is critical for all aspects of normal organism form, fitness, and function and even minor alterations in the level, location, and timing of gene expression can result in phenotypic variation within and between species including evolutionary innovations and human disease states. Eukaryotic transcription is regulated by a complex interplay of multiple factors working both at a physical and molecular levels influencing this process. In Saccharomyces cerevisiae, the TF with the greatest number of putative regulatory targets is the essential gene Repressor Activator Protein 1 (RAP1). While much is known about the roles of Rap1 in gene regulation and numerous cellular processes, the response of Rap1 target genes to systematic titration of RAP1 expression level remains unknown. To fill this knowledge gap, we used a strain with a tetracycline-titratable promoter replacing wild-type regulatory sequences of RAP1 to systematically reduce the expression level of RAP1 and followed this with RNA sequencing (RNA-seq) to measure genome-wide gene expression responses. Previous research indicated that Rap1 plays a significant regulatory role in particular groups of genes including telomere-proximal genes, homothallic mating (HM) loci, glycolytic genes, DNA repair genes, and ribosomal protein genes; therefore, we focused our analyses on these groups and downstream targets to determine how they respond to reductions in RAP1 expression level. Overall, despite being known as both an activator and as a repressor of its target genes, we found that Rap1 acts as an activator for more target genes than as a repressor. Additionally, we found that Rap1 functions as an activator of ribosomal protein genes and a repressor of the silent mating locus genes consistent with predictions from the literature. Unexpectedly, we found that Rap1 functions as a repressor of glycolytic enzyme genes contrary to prior reports of it having the opposite effect. We also compared the expression of RAP1 to five different genes related to DNA repair pathway and found that decreasing RAP1 downregulated four of those five genes. Finally, we found no effect of RAP1 depletion on telomere-proximal genes despite its functioning to silence telomeric repeat-containing RNAs. Together our results enrich our understanding of this important transcriptional regulator. The graphical abstract is provided as a supplementary fig. (S-Fig 1).
Collapse
Affiliation(s)
- S Kalra
- Department of Biology, Wesleyan University, Middletown, CT 06457, United States of America
| | - R Peyser
- Department of Biology, Wesleyan University, Middletown, CT 06457, United States of America
| | - J Ho
- Department of Biology, Wesleyan University, Middletown, CT 06457, United States of America
| | - C Babbin
- Department of Biology, Wesleyan University, Middletown, CT 06457, United States of America
| | - N Bohan
- Department of Biology, Wesleyan University, Middletown, CT 06457, United States of America
| | - A Cortes
- Department of Biology, Wesleyan University, Middletown, CT 06457, United States of America
| | - J Erley
- Department of Biology, Wesleyan University, Middletown, CT 06457, United States of America
| | - M Fatima
- Department of Biology, Wesleyan University, Middletown, CT 06457, United States of America
| | - J Flinn
- Department of Biology, Wesleyan University, Middletown, CT 06457, United States of America
| | - E Horwitz
- Department of Biology, Wesleyan University, Middletown, CT 06457, United States of America
| | - R Hsu
- Department of Biology, Wesleyan University, Middletown, CT 06457, United States of America
| | - W Lee
- Department of Biology, Wesleyan University, Middletown, CT 06457, United States of America
| | - V Lu
- Department of Biology, Wesleyan University, Middletown, CT 06457, United States of America
| | - A Narch
- Department of Biology, Wesleyan University, Middletown, CT 06457, United States of America
| | - D Navas
- Department of Biology, Wesleyan University, Middletown, CT 06457, United States of America
| | - K Okoroafor
- Department of Biology, Wesleyan University, Middletown, CT 06457, United States of America
| | - E Ouanemalay
- Department of Biology, Wesleyan University, Middletown, CT 06457, United States of America
| | - S Ross
- Department of Biology, Wesleyan University, Middletown, CT 06457, United States of America
| | - F Sowole
- Department of Biology, Wesleyan University, Middletown, CT 06457, United States of America
| | - E Specht
- Department of Biology, Wesleyan University, Middletown, CT 06457, United States of America
| | - J Woo
- Department of Biology, Wesleyan University, Middletown, CT 06457, United States of America
| | - K Yu
- Department of Biology, Wesleyan University, Middletown, CT 06457, United States of America
| | - J D Coolon
- Department of Biology, Wesleyan University, Middletown, CT 06457, United States of America.
| |
Collapse
|
10
|
Yu K, Cadeaux J, Luo BN, Qian C. Process ambidexterity driven by environmental uncertainty: balancing flexibility and routine. IJOPM 2023. [DOI: 10.1108/ijopm-05-2022-0290] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/31/2023]
Abstract
PurposeThis study aims to extend ambidexterity theory from the perspective of organisational learning and examine how process ambidexterity, which comprises operational flexibility and operational routine, responds to environmental uncertainty and ultimately reduces organisational risks.Design/methodology/approachThis study tests the hypotheses by analysing 464 annual reports of 115 listed companies in the Chinese agricultural and food industry using content and secondary data analyses. Four case studies are also provided.FindingsThe results show that (1) environmental uncertainty has a positive effect on either operational flexibility or operational routine; (2) both operational flexibility and operational routine have negative effects on organisational risks, supporting the view that process ambidexterity mediates the relationship between environmental uncertainty and organisational risks; and (3) organisational slack plays the role of “double-edged sword” by negatively moderating the effect of environmental uncertainty on operational flexibility and positively moderating the effect of environmental uncertainty on operational routine.Originality/valueIn an uncertain environment, companies are exposed to greater risk. This study contributes to risk management in three ways: first, it extends ambidexterity theory to process management and proposes how process ambidexterity balances operational flexibility and routines. Second, it distinguishes between the different conditions under which flexibility or routines are superior. Third, it explains the mechanisms related to how organisations can resolve environmental uncertainty into risk through process ambidexterity.
Collapse
|
11
|
Lang X, Yu K, Zhao Z, Chen Y, Tian J, Zhang M, Wang Y. Vertical distribution, environmental occurrence, and risk assessment of organic pollutants in lacustrine sediments in southeast China. Environ Sci Pollut Res Int 2023; 30:51206-51216. [PMID: 36809627 DOI: 10.1007/s11356-023-25712-3] [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] [Received: 09/17/2022] [Accepted: 01/31/2023] [Indexed: 04/16/2023]
Abstract
To clarify the impact of human activities on the natural environment, as well as the current ecological risks to the environment surrounding Zhushan Bay in Taihu Lake, the characteristics of deposited organic materials, including elements and 16 polycyclic aromatic hydrocarbons (∑16PAHs), in a sediment core from Taihu Lake were determined. The nitrogen (N), carbon (C), hydrogen (H), and sulfur (S) contents ranged from 0.08 to 0.3%, 0.83 to 3.6%, 0.63 to 1.12%, and 0.02 to 0.24%, respectively. The most abundant element in the core was C followed by H, S, and N, while elemental C and the C/H ratio displayed a decreasing trend with depth. The ∑16PAH concentration was in the range of 1807.48-4674.83 ng g-1, showing a downward trend with depth, with some fluctuations. Three-ring PAHs dominated in surface sediment, while 5-ring PAHs dominated at a depth of 55-93 cm. Six-ring PAHs appeared in the 1830s and gradually increased over time before slowly decreasing from 2005 onward due to the establishment of environmental protection measures. The ratio of PAH monomers indicated that PAHs in samples from a depth of 0 to 55 cm were mainly derived from the combustion of liquid fossil fuels, while the PAHs in the deeper samples mainly originated from petroleum. The results of a principal component analysis (PCA) showed that the PAHs in the sediment core of Taihu Lake were mainly derived from the combustion of fossil fuels, such as diesel, petroleum, gasoline, and coal. The contributions of biomass combustion, liquid fossil fuel combustion, coal combustion, and unknown source were 8.99%, 52.68%, 1.65%, and 36.68%, respectively. The results of a toxicity analysis indicated that most of the PAH monomers had little impact on the ecology, and the annual increase of a small number of monomers might have toxic effects on the biological community, resulting in a serious ecological risks, that requires the imposition of control measures.
Collapse
Affiliation(s)
- Xiulu Lang
- School of Geography, Nanjing Normal University, 1 Wenyuan Road, Nanjing, 210023, Qixia, China
- Key Laboratory of Virtual Geographic Environment, Ministry of Education, Nanjing Normal University, Nanjing, 210023, China
- Jiangsu Center for Collaborative Innovation in Geographical Information Resource Development and Application, Nanjing, 210023, China
| | - Kangkang Yu
- School of Geography, Nanjing Normal University, 1 Wenyuan Road, Nanjing, 210023, Qixia, China
| | - Zihan Zhao
- School of Geography, Nanjing Normal University, 1 Wenyuan Road, Nanjing, 210023, Qixia, China
| | - Yan Chen
- School of Geography, Nanjing Normal University, 1 Wenyuan Road, Nanjing, 210023, Qixia, China
| | - Jiming Tian
- School of Geography, Nanjing Normal University, 1 Wenyuan Road, Nanjing, 210023, Qixia, China
| | - Mingli Zhang
- School of Geography, Nanjing Normal University, 1 Wenyuan Road, Nanjing, 210023, Qixia, China
| | - Yanhua Wang
- School of Geography, Nanjing Normal University, 1 Wenyuan Road, Nanjing, 210023, Qixia, China.
- Key Laboratory of Virtual Geographic Environment, Ministry of Education, Nanjing Normal University, Nanjing, 210023, China.
- Jiangsu Center for Collaborative Innovation in Geographical Information Resource Development and Application, Nanjing, 210023, China.
| |
Collapse
|
12
|
Ju Y, Liu K, Ma G, Zhu B, Wang H, Hu Z, Zhao J, Zhang L, Cui K, He XR, Huang M, Li Y, Xu S, Gao Y, Liu K, Liu H, Zhuo Z, Zhang G, Guo Z, Ye Y, Zhang L, Zhou X, Ma S, Qiu Y, Zhang M, Tao Y, Zhang M, Xian L, Xie W, Wang G, Wang Y, Wang C, Wang DH, Yu K. Bacterial antibiotic resistance among cancer inpatients in China: 2016-20. QJM 2023; 116:213-220. [PMID: 36269193 DOI: 10.1093/qjmed/hcac244] [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: 04/19/2022] [Revised: 09/16/2022] [Accepted: 10/10/2022] [Indexed: 11/09/2022] Open
Abstract
BACKGROUND The incidence of infections among cancer patients is as high as 23.2-33.2% in China. However, the lack of information and data on the number of antibiotics used by cancer patients is an obstacle to implementing antibiotic management plans. AIM This study aimed to investigate bacterial infections and antibiotic resistance in Chinese cancer patients to provide a reference for the rational use of antibiotics. DESIGN This was a 5-year retrospective study on the antibiotic resistance of cancer patients. METHODS In this 5-year surveillance study, we collected bacterial and antibiotic resistance data from 20 provincial cancer diagnosis and treatment centers and three specialized cancer hospitals in China. We analyzed the resistance of common bacteria to antibiotics, compared to common clinical drug-resistant bacteria, evaluated the evolution of critical drug-resistant bacteria and conducted data analysis. FINDINGS Between 2016 and 2020, 216 219 bacterial strains were clinically isolated. The resistance trend of Escherichia coli and Klebsiella pneumoniae to amikacin, ciprofloxacin, cefotaxime, piperacillin/tazobactam and imipenem was relatively stable and did not significantly increase over time. The resistance of Pseudomonas aeruginosa strains to all antibiotics tested, including imipenem and meropenem, decreased over time. In contrast, the resistance of Acinetobacter baumannii strains to carbapenems increased from 4.7% to 14.7%. Methicillin-resistant Staphylococcus aureus (MRSA) significantly decreased from 65.2% in 2016 to 48.9% in 2020. CONCLUSIONS The bacterial prevalence and antibiotic resistance rates of E. coli, K. pneumoniae, P. aeruginosa, A. baumannii, S. aureus and MRSA were significantly lower than the national average.
Collapse
Affiliation(s)
- Y Ju
- From the Department of Critical Care Medicine, Harbin Medical University Cancer Hospital, Harbin, China
| | - K Liu
- Department of Critical Care Medicine, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China
| | - G Ma
- Department of Critical Care Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - B Zhu
- Department of Critical Care Medicine, Fudan University Shanghai Cancer Center, Shanghai, China
| | - H Wang
- Department of Critical Care Medicine, Peking University Cancer Hospital & Institute, Beijing, China
| | - Z Hu
- Department of Critical Care Medicine, Hebei Tumor Hospital, Shijiazhuang, China
| | - J Zhao
- Department of Critical Care Medicine, Hunan Cancer Hospital, Changsha, China
| | - L Zhang
- Department of Critical Care Medicine, Hubei Cancer Hospital, Wuhan, China
| | - K Cui
- Department of Critical Care Medicine, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China
| | - X-R He
- Department of Critical Care Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - M Huang
- Department of Critical Care Medicine, Shanxi Tumor Hospital, Taiyuan, China
| | - Y Li
- Department of Critical Care Medicine, Guangxi Medical University Cancer Hospital, Nanning, China
| | - S Xu
- Department of Critical Care Medicine, Sichuan Cancer Hospital, Chengdu, China
| | - Y Gao
- Department of Critical Care Medicine, The Fourth Affiliated Hospital of Harbin Medical University, Harbin, China
| | - K Liu
- Department of Critical Care Medicine, Zhejiang Cancer Hospital, Hangzhou, China
| | - H Liu
- From the Department of Critical Care Medicine, Harbin Medical University Cancer Hospital, Harbin, China
| | - Z Zhuo
- From the Department of Critical Care Medicine, Harbin Medical University Cancer Hospital, Harbin, China
| | - G Zhang
- Department of Critical Care Medicine, Jilin Tumor Hospital, Changchun, China
| | - Z Guo
- Department of Critical Care Medicine, Shandong Cancer Hospital and Institute, Shandong, China
| | - Y Ye
- Department of Critical Care Medicine, Fujian Cancer Hospital, Fuzhou, China
| | - L Zhang
- Department of Critical Care Medicine, Anhui Provincial Cancer Hospital, Hefei, China
| | - X Zhou
- Department of Critical Care Medicine, Gansu Provincial Cancer Hospital, Lanzhou, China
| | - S Ma
- Department of Critical Care Medicine, Jiangsu Cancer Hospital, Nanjing, China
| | - Y Qiu
- Department of Critical Care Medicine, Jiangxi Cancer Hospital, Nanchang, China
| | - M Zhang
- Department of Critical Care Medicine, Hangzhou Cancer Hospital, Hangzhou, China
| | - Y Tao
- Department of Critical Care Medicine, Nantong Tumor Hospital, Nantong, China
| | - M Zhang
- Department of Critical Care Medicine, Baotou Cancer Hospital, Baotou, China
| | - L Xian
- Department of Critical Care Medicine, Affiliated Cancer Hospital and Institute of Guangzhou Medical University, Guangzhou, China
| | - W Xie
- Department of Critical Care Medicine, The Affiliated Cancer Hospital of Guizhou Medical University, Guiyang, China
| | - G Wang
- Department of Critical Care Medicine, The First Hospital of Jilin University, Changchun, China
| | - Y Wang
- Department of Critical Care Medicine, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - C Wang
- From the Department of Critical Care Medicine, Harbin Medical University Cancer Hospital, Harbin, China
| | - D-H Wang
- Department of Critical Care Medicine, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China
| | - K Yu
- Department of Critical Care Medicine, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| |
Collapse
|
13
|
Robotka H, Thomas L, Yu K, Wood W, Elie JE, Gahr M, Theunissen FE. Sparse ensemble neural code for a complete vocal repertoire. Cell Rep 2023; 42:112034. [PMID: 36696266 PMCID: PMC10363576 DOI: 10.1016/j.celrep.2023.112034] [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: 02/22/2022] [Revised: 08/08/2022] [Accepted: 01/09/2023] [Indexed: 01/26/2023] Open
Abstract
The categorization of animal vocalizations into distinct behaviorally relevant groups for communication is an essential operation that must be performed by the auditory system. This auditory object recognition is a difficult task that requires selectivity to the group identifying acoustic features and invariance to renditions within each group. We find that small ensembles of auditory neurons in the forebrain of a social songbird can code the bird's entire vocal repertoire (∼10 call types). Ensemble neural discrimination is not, however, correlated with single unit selectivity, but instead with how well the joint single unit tunings to characteristic spectro-temporal modulations span the acoustic subspace optimized for the discrimination of call types. Thus, akin to face recognition in the visual system, call type recognition in the auditory system is based on a sparse code representing a small number of high-level features and not on highly selective grandmother neurons.
Collapse
Affiliation(s)
- H Robotka
- Max Planck Institute for Ornithology, Seewiesen, Germany
| | - L Thomas
- University of California, Berkeley, Helen Wills Neuroscience Institute, Berkeley, CA, USA
| | - K Yu
- University of California, Berkeley, Helen Wills Neuroscience Institute, Berkeley, CA, USA
| | - W Wood
- University of California, Berkeley, Helen Wills Neuroscience Institute, Berkeley, CA, USA
| | - J E Elie
- University of California, Berkeley, Helen Wills Neuroscience Institute, Berkeley, CA, USA
| | - M Gahr
- Max Planck Institute for Ornithology, Seewiesen, Germany
| | - F E Theunissen
- Max Planck Institute for Ornithology, Seewiesen, Germany; University of California, Berkeley, Helen Wills Neuroscience Institute, Berkeley, CA, USA; Department of Psychology and Integrative Biology, University of California, Berkeley, Berkeley, CA, USA.
| |
Collapse
|
14
|
Liu M, Yu K, Lian W, Zhou N, Wu C, Bao J. G-Quadruplex Structures as a "Switch" Regulate ATF4 Expression in Ferroptotic HepG2 Cells. ACS Chem Biol 2023; 18:273-284. [PMID: 36722101 DOI: 10.1021/acschembio.2c00615] [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: 02/02/2023]
Abstract
G-quadruplex (G4) is a noncanonical structure folded in a widespread manner by guanine-rich tandem repeated sequences. As a key response factor, activating transcription factor 4 (ATF4) has dual functions in managing iron-dependent ferroptosis by regulating amino acid synthesis and antioxidant-related gene expression. In our study, the activity of ATF4 expression was elevated in HepG2 cells induced by erastin. Based on preliminary bioinformatics analyses, the G-tract region, named WT, had high potential to form G4, and it was found that PDS could markedly weaken the increase of ATF4 expression by reducing the sensitivity of HepG2 cells toward erastin. In circular dichroism spectra, WT oligonucleotides showed characteristic molar ellipticity at specific wavelengths of parallel G4 structures, while corresponding single-base mutants possessed a weaker ability to form G4, which were consistent with immunostaining results. In addition, endogenous G4 formed by the WT motif was significantly destroyed in HepG2 cells treated with erastin. After being transfected with WT oligonucleotides, the levels of ATF4 mRNA decreased significantly regardless of being treated with erastin or not. Meanwhile, mutations of G-tracts could advantageously impact the luciferase expression downstream of an ATF4 promoter in reporter assays, manifesting that the decrease of endogenous G4 in the ATF4 promoter was positively associated with the expression enhanced by erastin in HepG2 cells.
Collapse
Affiliation(s)
- Miaomiao Liu
- Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, Sichuan 610065, China
| | - Kangkang Yu
- Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, Sichuan 610065, China
| | - Weishao Lian
- Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, Sichuan 610065, China
| | - Nan Zhou
- Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, Sichuan 610065, China
| | - Chuanfang Wu
- Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, Sichuan 610065, China
| | - Jinku Bao
- Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, Sichuan 610065, China
| |
Collapse
|
15
|
Wang N, Yu K, Li K, Yu X. A novel triple-network hydrogel based on borate ester groups: from structural modulation to rapid wound hemostasis. J Mater Chem B 2023; 11:1232-1239. [PMID: 36647703 DOI: 10.1039/d2tb02537j] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Supramolecular hydrogels have received widespread attention due to their soft texture, strong hygroscopicity, and good biocompatibility. These materials have become particularly attractive for sensing, tissue engineering, fluorescence encoding, wound healing, etc. Inspired by the assembly of G-quadruplexes, we choose the boric acid/polyvinyl alcohol/guanosine system to construct a novel triple-network supramolecular hydrogel "tri-BA@PVA/G" via non-covalent cross-linking, and the effect of the concentration of each component on the hydrogel stability was systematically revealed at the same time. Then, the biocompatibility, shape adaption and optical information storage capacity, the rapid hemostatic ability and the ability of the hydrogel to promote wound healing were confirmed both in vitro and in vivo. These results that predict the properties and reveal prospective applications in the field of wound hemostasis have a certain guiding significance for the subsequent preparation of borate-based triple network hydrogels which can be used as wound hemostatic materials.
Collapse
Affiliation(s)
- Nan Wang
- Key Laboratory of Green Chemistry and Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, 610064, China.
| | - Kangkang Yu
- Key Laboratory of Bio-resources and Eco-environment, Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, 610064, China.
| | - Kun Li
- Key Laboratory of Green Chemistry and Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, 610064, China.
| | - Xiaoqi Yu
- Key Laboratory of Green Chemistry and Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, 610064, China. .,Asymmetric Synthesis and Chiral Technology Key Laboratory of Sichuan Province, Department of Chemistry, Xihua University, Chengdu, 610039, China
| |
Collapse
|
16
|
Li L, Yu K, Mo Z, Yang K, Chen F, Yang J. In Vitro Neurotrophic Properties and Structural Characterization of a New Polysaccharide LTC-1 from Pyrola corbieri Levl (Luticao). Molecules 2023; 28:1544. [PMID: 36838533 PMCID: PMC9964326 DOI: 10.3390/molecules28041544] [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: 01/12/2023] [Revised: 02/02/2023] [Accepted: 02/03/2023] [Indexed: 02/09/2023] Open
Abstract
Pyrola corbieri Levl has been used to strengthen bones and nourish the kidney (the kidney governs the bone and is beneficial to the brain) by the local Miao people in China. However, the functional components and neurotrophic activity have not been reported. A new acidic homogeneous heteropolysaccharide named LTC-1 was obtained and characterized by periodate oxidation, Smith degradation, partial acid hydrolysis, GC-MS spectrometry, methylation analysis, and Fourier transform infrared spectroscopy, and its molecular weight was 3239 Da. The content of mannuronic acid (Man A) in LTC-1 was 46%, and the neutral sugar was composed of L-rhamnose (L-Rha), L-arabinose (L-Ara), D-xylose (D-Xyl), D-mannose (D-Man), D-glucose (D-Glc) and D-galactose (D-Gal) with a molar ratio of 1.00:3.63:0.86:1.30:6.97:1.30. The main chain of LTC-1 was composed of Glc, Gal, Man, Man A and the branched chain Ara, Glc, Gal. The terminal residues were composed of Glc and Gal. The main chain and branched chains were linked by (1→5)-linked-Ara, (1→3)-linked-Glc, (1→4)-linked-Glc, (1→6)-linked-Glc, (1→3)-linked-Gal, (1→6)-linked-Gal, (1→3, 6)-linked-Man and ManA. Meanwhile, neurotrophic activity was evaluated through PC12 and primary hippocampal neuronal cell models. LTC-1 exhibited neurotrophic activity in a concentration-dependent manner, which significantly induced the differentiation of PC12 cells, promoted the neurite outgrowth of PC12 cells, enhanced the formation of the web architecture of dendrites, and increased the density of dendritic spines in hippocampal neurons and the expression of PSD-95. These results displayed significant neurotrophic factor-like activity of LTC-1, which suggests that LTC-1 is a potential treatment option for neurodegenerative diseases.
Collapse
Affiliation(s)
- Liangqun Li
- State Key Laboratory for Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang 550014, China
- The Key Laboratory of Chemistry for Natural Products of Guizhou Province and Chinese Academy of Sciences, Guiyang 550014, China
| | - Kangkang Yu
- School of Life Science, Shanghai University, Shanghai 200444, China
| | | | - Keling Yang
- State Key Laboratory for Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang 550014, China
- The Key Laboratory of Chemistry for Natural Products of Guizhou Province and Chinese Academy of Sciences, Guiyang 550014, China
| | - Fuxue Chen
- School of Life Science, Shanghai University, Shanghai 200444, China
| | - Juan Yang
- State Key Laboratory for Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang 550014, China
- The Key Laboratory of Chemistry for Natural Products of Guizhou Province and Chinese Academy of Sciences, Guiyang 550014, China
| |
Collapse
|
17
|
Zhao Z, Zhang M, Chen Y, Ti C, Tian J, He X, Yu K, Zhu W, Yan X, Wang Y. Traceability of nitrate polluted hotspots in plain river networks of the Yangtze River delta by nitrogen and oxygen isotopes coupling bayesian model. Environ Pollut 2022; 315:120438. [PMID: 36265730 DOI: 10.1016/j.envpol.2022.120438] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [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: 09/12/2022] [Revised: 10/05/2022] [Accepted: 10/12/2022] [Indexed: 05/25/2023]
Abstract
The adverse effects of increased nitrate (NO3-) pollution especially from the non-point source on the hydrosphere and anthroposphere are becoming more prominent. The non-point-derived NO3- in the rivers supplying the upstream threatens the aquatic ecosystem of Taihu Lake. Here, dual-stable isotopes (δ15N and δ18O) of NO3- were applied to the Bayesian model (SIAR) for quantitative source identification of reactive nitrogen (Nr) in a mixed agricultural and urban region along the complex river network of the Yangze River delta. The results showed that the NO3- concentrations in the rivers ranged from 1.09 to 4.44 mg L-1 and decreased from the highly urbanized areas to the lakeside rural areas. The specific isotopic characteristics of four sources (atmospheric deposition, AD; chemical fertilizer, CF; manure and sewage, MS; and soil leachate, SL) by the SIAR isotope model indicated that the MS source made the greatest contribution (46.56%) to the total NO3- load, followed by SL (27.86%), CF (23.77%), and AD (1.81%). The highly urbanized areas and the hybrid areas, which contained a mix of industrialized, populated, and agricultural areas, were identified as hotspot areas with heavy Nr pollution, responsible for spatial patterns of δ15N-NO3- and δ18O-NO3-. These hotspot areas were characterized by a less well-developed sewage pipeline system with high Nr emissions from cash crops. The changes in wastewater treatment level, the agricultural production structure, and meteorological changes were the main factors of spatial variation of Nr concentration and source in the upstream Taihu Lake Basin. The variation in Nr concentration across Taihu Lake would respond to these anthropogenic-driven Nr loads. These findings suggest that MS was the predominant source had the strongest effect on the overall riverine NO3- source which was the primary problem that needed to be solved.
Collapse
Affiliation(s)
- Zihan Zhao
- School of Geography, Nanjing Normal University, Nanjing, 210023, China
| | - Mingli Zhang
- School of Geography, Nanjing Normal University, Nanjing, 210023, China
| | - Yan Chen
- School of Geography, Nanjing Normal University, Nanjing, 210023, China
| | - Chaopu Ti
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, 210008, China
| | - Jiaming Tian
- School of Geography, Nanjing Normal University, Nanjing, 210023, China
| | - Xinghua He
- School of Geography, Nanjing Normal University, Nanjing, 210023, China
| | - Kangkang Yu
- School of Geography, Nanjing Normal University, Nanjing, 210023, China
| | - Wangyue Zhu
- School of Geography, Nanjing Normal University, Nanjing, 210023, China
| | - Xiaoyuan Yan
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, 210008, China
| | - Yanhua Wang
- School of Geography, Nanjing Normal University, Nanjing, 210023, China; Jiangsu Center for Collaborative Innovation in Geographical Information Resource Development and Application, Nanjing, 210023, China; Key Laboratory of Virtual Geographic Environment, Ministry of Education, Nanjing Normal University, Nanjing, 210023, China.
| |
Collapse
|
18
|
Tan L, Yang J, Yang J, Yang Z, Yu K. Impact of prior failed irrigation and debridement on outcomes of subsequent two-stage revision arthroplasty: a systematic review and meta-analysis. Eur Rev Med Pharmacol Sci 2022; 26:9195-9203. [PMID: 36591831 DOI: 10.26355/eurrev_202212_30672] [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: 01/03/2023]
Abstract
OBJECTIVE This study aimed at examining if prior failed debridement, antibiotics, and implant retention (DAIR) for prosthetic joint infection have an impact on the success of subsequent two-stage revision arthroplasty (2SRA). MATERIALS AND METHODS Search was conducted on PubMed, Embase, and Google Scholar up to 14th April 2022 for studies comparing 2SRA with and without a history of DAIR. RESULTS Six retrospective studies were included. The success of 2SRA was defined as either absence of additional surgical intervention for infection or absence of antibiotic suppression or both. We noted no statistically significant difference in the odds of success between failed DAIR and no DAIR group, albeit with an inclination of reduced success with prior failed DAIR (OR 0.63 95% CI 0.33, 1.19 I2=66% p=0.16). Five studies reported adjusted outcomes. The meta-analysis demonstrated no statistically significant difference in the odds of success between failed DAIR and no DAIR groups (OR 0.57 95% CI 0.26, 1.26 I2=66% p=0.17). During sensitivity analysis, the removal of a single study changed the effect size indicating significantly lower success rates in failed DAIR group. CONCLUSIONS Our results indicate that patients undergoing 2SRA after failed DAIR may have a non-significant tendency of lower success rates as compared to patients directly undergoing 2SRA. However, current evidence is scarce and fraught with several limitations and there is a need for further research to delineate the impact of failed DAIR on the success of 2SRA.
Collapse
Affiliation(s)
- L Tan
- Department of Orthopedics, Tianjin Fifth Central Hospital, Tianjin, China.
| | | | | | | | | |
Collapse
|
19
|
Cheng H, Wang S, Gao D, Yu K, Chen H, Huang Y, Li M, Zhang J, Guo K. Nucleotide sugar transporter SLC35A2 is involved in promoting hepatocellular carcinoma metastasis by regulating cellular glycosylation. Cell Oncol (Dordr) 2022; 46:283-297. [PMID: 36454514 DOI: 10.1007/s13402-022-00749-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2022] [Revised: 11/09/2022] [Accepted: 11/14/2022] [Indexed: 12/05/2022] Open
Abstract
PURPOSE Recently, aberrant glycosylation has been recognized to be relate to malignant behaviors of cancer and outcomes of patients with various cancers. SLC35A2 plays an indispensable role on glycosylation as a nucleotide sugar transporter. However, effects of SLC35A2 on malignant behaviors of cancer cells and alteration of cancer cells surface glycosylation profiles are still not fully understood, particularly in hepatocellular carcinoma (HCC). Hence, from a glycosylation perspective, we investigated the effects of SLC35A2 on metastatic behaviors of HCC cells. METHODS SLC35A2 expression in clinical samples and HCC cells was examined by immunohistochemical staining or Western blot/quantitative PCR and was regulated by RNA interference or vectors-mediated transfection. Effects of SLC35A2 expression alteration on metastatic behaviors and membrane glycan profile of HCC cells were observed by using respectively invasion, migration, cell adhesion assay, in vivo lung metastatic nude mouse model and lectins microarray. Co-location among proteins in HCC cells was observed by fluorescence microscope and detected by an in vitro co-immunoprecipitation assay. RESULTS SLC35A2 was upregulated in HCC tissues, and is associated with poor prognosis of HCC patients. SLC35A2 expression alteration significantly affected the invasion, adhesion, metastasis and membrane glycan profile and led to the dysregulated expressions or glycosylation of cell adhesion-related molecules in HCC cells. Mechanistically, the maintenance of SLC35A2 activity is critical for the recruitment of the key galactosyltransferase B4GalT1, which is responsible for complex glycoconjugate and lactose biosynthesis, to Golgi apparatus in HCC cells. CONCLUSION SLC35A2 plays important roles in promoting HCC metastasis by regulating cellular glycosylation modification and inducing the cell adhesive ability of HCC cells.
Collapse
|
20
|
Wang Y, Cui K, Li X, Gao Y, Hu Z, Wang H, Ma G, Zhu B, Wang D, Wang C, Yu K. Current census of oncology critical care medicine in China. QJM 2022; 115:745-752. [PMID: 35438153 DOI: 10.1093/qjmed/hcac104] [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: 12/07/2021] [Revised: 04/06/2022] [Indexed: 12/24/2022] Open
Abstract
OBJECTIVE The purposes of this survey were to show the current situation of oncology critical care medicine in China by questionnaire, to understand the resource distribution of oncology critical care medicine and to analyze and evaluate the existing resources and reserve capacity of oncology critical care medicine in China. METHODS We conducted the survey mainly in the form of an online questionnaire. The Committee of Cancer Critical Care Medicine of the Chinese Anticancer Association (CACA) initiated the survey on 1 November 2017, and 36 member hospitals nationwide participated in the survey. The questionnaire included 10 items: investigator information, hospital information, general information of oncology critical care department, staffing of oncology critical care department, management in oncology critical care department, technical skills in oncology critical care department, patient source in oncology critical care department, equipment configuration in oncology critical care department, special skills in oncology critical care department and summary of the information. RESULTS The survey results included information from 28 member units, all of which were tertiary hospitals, distributed in 20 provinces and 4 direct-controlled municipalities. The results are as follows. (i) The total ratio of beds in the oncology critical care department to hospital beds was 1.06%, and the average number of beds in the oncology critical care department was 16.36. (ii) The ratio of physicians in the oncology critical care department to beds was ∼0.62:1, and the ratio of nurses to beds was ∼1.98:1. (iii) According to the census of the population and gross domestic product (GDP) of different regions conducted by the State Statistics Bureau in 2017, the ratio of beds in the oncology critical care department for tumor patients to the population was 4.55 beds per 10 million people, and the ratio of beds in the oncology critical care department to GDP was 8.00 beds per RMB 100 billion, on average. (iv) According to the requirements of the guidelines for the development and management of critical care medicine in China, the facilities in departments of oncology critical care medicine meet the requirements, and the technical skills of medical staff are competent. CONCLUSION The development of oncology critical care in China is becoming better, but there is still a certain gap compared with the intensive care unit standards in China and the average level of the nationwide. The development of oncology critical care medicine is urgent.
Collapse
Affiliation(s)
- Y Wang
- From the Department of Critical Care Medicine, Harbin Medical University Cancer Hospital
| | - K Cui
- Department of Critical Care Medicine, Tianjin Medical University Cancer Institute and Hospital
| | - X Li
- From the Department of Critical Care Medicine, Harbin Medical University Cancer Hospital
| | - Y Gao
- Department of Critical Care Medicine, The Fourth Affiliated Hospital of Harbin Medical University
| | - Z Hu
- Department of Critical Care Medicine, The Fourth Hospital of Hebei Medical University
| | - H Wang
- Department of Critical Care Medicine, Peking University Cancer Hospital
| | - G Ma
- Department of Critical Care Medicine, Cancer Center of Sun Yat-sen University
| | - B Zhu
- Department of Critical Care Medicine, Fudan University Cancer Hospital
| | - D Wang
- Department of Critical Care Medicine, Tianjin Medical University Cancer Institute and Hospital
| | - C Wang
- From the Department of Critical Care Medicine, Harbin Medical University Cancer Hospital
| | - K Yu
- From the Department of Critical Care Medicine, Harbin Medical University Cancer Hospital
- Department of Critical Care Medicine, The First Affiliated Hospital of Harbin Medical University, No. 23 Youzheng Street, Nangang District, Harbin 150081, China
| |
Collapse
|
21
|
Liu L, Yu K, Huang C, Huo M, Li X, Yin R, Liu C, Lu L, Sun H, Zhang J. Sex differences in hepatocellular carcinoma indicated BEX4 as a potential target to improve efficacy of lenvatinib plus immune checkpoint inhibitors. J Cancer 2022; 13:3221-3233. [PMID: 36118521 PMCID: PMC9475366 DOI: 10.7150/jca.73051] [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: 03/20/2022] [Accepted: 08/20/2022] [Indexed: 11/09/2022] Open
Abstract
Background: Hepatocellular carcinoma (HCC) is the most common form of liver cancer, and significant sex disparities have been observed in HCC. We aim to explore the potential sex-biased mechanisms involved in hepatocarcinogenesis. Methods: Based on TCGA data, we compared clinical features, genetic alterations, and immune cell infiltrations between male and female HCC patients. In addition, we performed sex-based differential expression analysis and functional enrichment analysis. Finally, GSE64041 dataset and another HCC cohort were engaged to validate our findings. Results: Significant differences of genetic alterations and TME were observed between male and female HCC patients. Enhanced metabolism of lipids was associated with hepatocarcinogenesis in men, while ECM-organization-related pathways were correlated to HCC development in women. BEX4 was upregulated in female but downregulated in male HCC patients, and was positively correlated with immune checkpoint molecules and infiltrated immune cell. These findings were further validated in dataset GSE64041 and our HCC cohort. More importantly, a negative correlation was found between BEX4 expression and lenvatinib sensitivity. Conclusion: Distinct biological processes were involved in sex-biased tumorigenesis of HCC. BEX4 can be targeted to improve the efficacy of lenvatinib plus immune checkpoint inhibitors.
Collapse
Affiliation(s)
- Lu Liu
- Department of Infectious Diseases, Shanghai Key Laboratory of Infectious Diseases and Biosafety Emergency Response, National Medical Center for Infectious Diseases, Huashan Hospital, Fudan University, Shanghai 200040, China
| | - Kangkang Yu
- Department of Infectious Diseases, Shanghai Key Laboratory of Infectious Diseases and Biosafety Emergency Response, National Medical Center for Infectious Diseases, Huashan Hospital, Fudan University, Shanghai 200040, China
| | - Chong Huang
- Department of Infectious Diseases, Shanghai Key Laboratory of Infectious Diseases and Biosafety Emergency Response, National Medical Center for Infectious Diseases, Huashan Hospital, Fudan University, Shanghai 200040, China
| | - Meisi Huo
- Department of Infectious Diseases, Shanghai Key Laboratory of Infectious Diseases and Biosafety Emergency Response, National Medical Center for Infectious Diseases, Huashan Hospital, Fudan University, Shanghai 200040, China
| | - Xiaoqi Li
- Department of Infectious Diseases, Shanghai Key Laboratory of Infectious Diseases and Biosafety Emergency Response, National Medical Center for Infectious Diseases, Huashan Hospital, Fudan University, Shanghai 200040, China
| | - Ruiqi Yin
- Department of Infectious Diseases, Shanghai Key Laboratory of Infectious Diseases and Biosafety Emergency Response, National Medical Center for Infectious Diseases, Huashan Hospital, Fudan University, Shanghai 200040, China
| | - Chuanmiao Liu
- Department of Infectious Diseases, The First Affiliated Hospital of Bengbu Medical College, Bengbu 233000, China
| | - Lu Lu
- Department of General Surgery, Huashan Hospital, Cancer Metastasis Institute, Fudan University, Shanghai 200040, China
| | - Huaping Sun
- Department of Radiology, Huashan Hospital, Fudan University, Shanghai 200040, China
| | - Jubo Zhang
- Department of Infectious Diseases, Shanghai Key Laboratory of Infectious Diseases and Biosafety Emergency Response, National Medical Center for Infectious Diseases, Huashan Hospital, Fudan University, Shanghai 200040, China
| |
Collapse
|
22
|
Keane F, Park W, Varghese A, Balogun F, Yu K, El Dika I, Khalil D, Kelsen D, Reidy-Lagunes D, Ku G, Raj N, Chou J, Capanu M, Schultz N, Yaeger R, O'Reilly E. 1304P Characterizing the clinico-genomic landscape and outcomes of KRAS G12C mutated pancreas cancer. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.07.1436] [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: 11/28/2022] Open
|
23
|
Wan G, DeSimone M, Liu F, Nguyen N, Leung B, Choi M, Bruce A, Stagner A, Lian C, Russell-Goldman E, Jiao M, Zhen D, Zhao J, Gil J, Németh I, Marko-Varga G, Kwatra S, Yu K, Semenov Y. 649 CNN-based histopathology image analysis for early-stage melanoma recurrence. J Invest Dermatol 2022. [DOI: 10.1016/j.jid.2022.05.660] [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: 10/17/2022]
|
24
|
Yu Z, Gehad A, Teague J, Crouch J, Yu K, O'Malley J, Kupper T, Benezeder T, Gudjonsson J, Kahlenberg J, Sarkar M, Vieyra-Garcia P, Wolf P, Clark R. 605 Phototherapy-induced IFNκ drives type I IFN induced anticancer responses in CTCL. J Invest Dermatol 2022. [DOI: 10.1016/j.jid.2022.05.615] [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: 10/17/2022]
|
25
|
Lu Q, Song L, Yu K. The effects of operational and digitalization capabilities on SMSs’ supply chain financing under supply risk. International Journal of Logistics Research and Applications 2022. [DOI: 10.1080/13675567.2022.2104232] [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] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Affiliation(s)
- Qiang Lu
- School of E-Business and Logistics, Beijing Technology and Business University, Beijing, People’s Republic of China
| | - Liyuan Song
- Smeal College of Business, Pennsylvania State University, State College, PA, USA
| | - Kangkang Yu
- School of Agricultural Economics and Rural Development, Renmin University of China, Beijing, People’s Republic of China
| |
Collapse
|
26
|
Zhang L, Miao S, Yang Z, Li Z, Fan Y, Yu K, Huang K, Huang Q, Xia X. [Suppression of HMGB1 inhibits neuronal autophagy and apoptosis to improve neurological deficits in rats following intracerebral hemorrhage]. Nan Fang Yi Ke Da Xue Xue Bao 2022; 42:1050-1056. [PMID: 35869769 DOI: 10.12122/j.issn.1673-4254.2022.07.13] [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] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
OBJECTIVE To investigate the effect of suppressing high-mobility group box 1 (HMGB1) on neuronal autophagy and apoptosis in rats after intracerebral hemorrhage (ICH) in rats. METHODS Rat models of ICH induced by intracerebral striatum injection of 0.2 U/mL collagenase Ⅳ were treated with 1 mg/kg anti-HMGB1 mAb or a control anti-IgG mAb injected via the tail immediately and at 6 h after the operation (n=5). The rats in the sham-operated group (with intracranial injection of 2 μL normal saline) and ICH model group (n=5) were treated with PBS in the same manner after the operation. The neurological deficits of the rats were evaluated using modified neurological severity score (mNSS). TUNEL staining was used to detect apoptosis of the striatal neurons, and the expressions of HMGB1, autophagy-related proteins (Beclin-1, LC3-Ⅱ and LC3-Ⅰ) and apoptosis-related proteins (Bcl-2, Bax and cleaved caspase-3) in the brain tissues surrounding the hematoma were detected using Western blotting. The expression of HMGB1 in the striatum was detected by immunohistochemistry, and serum level of HMGB1 was detected with ELISA. RESULTS The rat models of ICH showed significantly increased mNSS (P < 0.05), which was markedly lowered after treatment with anti- HMGB1 mAb (P < 0.05). ICH caused a significant increase of apoptosis of the striatal neurons (P < 0.05), enhanced the expressions of beclin-1, LC3-Ⅱ, Bax and cleaved caspase-3 (P < 0.05), lowered the expressions of LC3-Ⅰ and Bcl-2 (P < 0.05), and increased the content of HMGB1 (P < 0.05). Treatment with anti-HMGB1 mAb obviously lowered the apoptosis rate of the striatal neurons (P < 0.05), decreased the expressions of Beclin-1, LC3-Ⅱ, Bax and cleaved caspase-3 (P < 0.05), increased the expressions of LC3-Ⅰ and Bcl-2 (P < 0.05), and reduced the content of HMGB1 in ICH rats (P < 0.05). CONCLUSION Down- regulation of HMGB1 by anti-HMGB1 improves neurological functions of rats after ICH possibly by inhibiting autophagy and apoptosis of the neurons.
Collapse
Affiliation(s)
- L Zhang
- Collaborative Innovation Center of Sichuan for Elderly Care and Health, Chengdu Medical College, Chengdu 610500, China.,Department of Neurosurgery, First Affiliated Hospital of Chengdu Medical College, Chengdu 610500, China
| | - S Miao
- Department of Neurosurgery, First Affiliated Hospital of Chengdu Medical College, Chengdu 610500, China
| | - Z Yang
- Department of Neurosurgery, First Affiliated Hospital of Chengdu Medical College, Chengdu 610500, China
| | - Z Li
- Department of Neurosurgery, First Affiliated Hospital of Chengdu Medical College, Chengdu 610500, China
| | - Y Fan
- Department of Neurosurgery, First Affiliated Hospital of Chengdu Medical College, Chengdu 610500, China
| | - K Yu
- Department of Neurosurgery, First Affiliated Hospital of Chengdu Medical College, Chengdu 610500, China
| | - K Huang
- Department of Neurosurgery, First Affiliated Hospital of Chengdu Medical College, Chengdu 610500, China
| | - Q Huang
- Department of Information, First Affiliated Hospital of Chengdu Medical College, Chengdu 610500, China
| | - X Xia
- Department of Neurosurgery, First Affiliated Hospital of Chengdu Medical College, Chengdu 610500, China
| |
Collapse
|
27
|
Li N, Yu K, Dong M, Wang J, Yang F, Zhu H, Yu J, Yang J, Xie W, Mitra B, Mao R, Wu F, Guo H, Zhang J. Intrahepatic transcriptomics reveals gene signatures in chronic hepatitis B patients responded to interferon therapy. Emerg Microbes Infect 2022; 11:1876-1889. [PMID: 35815389 PMCID: PMC9336496 DOI: 10.1080/22221751.2022.2100831] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [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] [Indexed: 12/01/2022]
Abstract
Chronic hepatitis B virus (HBV) infection remains a substantial public health burden worldwide. Alpha-interferon (IFNα) is one of the two currently approved therapies for chronic hepatitis B (CHB), to explore the mechanisms underlying IFNα treatment response, we investigated baseline and 24-week on-treatment intrahepatic gene expression profiles in 21 CHB patients by mRNA-seq. The data analyses demonstrated that PegIFNα treatment significantly induced antiviral responses. Responders who achieved HBV DNA loss and HBeAg or HBsAg seroconversion displayed higher fold change and larger number of up-regulated interferon-stimulated genes (ISGs). Interestingly, lower expression levels of certain ISGs were observed in responders in their baseline biopsy samples. In HBeAg+ patients, non-responders had relative higher baseline HBeAg levels than responders. More importantly, HBeAg− patients showed higher HBsAg loss rate than HBeAg+ patients. Although a greater fold change of ISGs was observed in HBeAg− patients than HBeAg+ patients, upregulation of ISGs in HBeAg+ responders exceeded HBeAg− responders. Notably, PegIFNα treatment increased monocyte and mast cell infiltration, but decreased CD8 T cell and M1 macrophage infiltration in both responders and non-responders, while B cell infiltration was increased only in responders. Moreover, co-expression analysis identified ribosomal proteins as critical players in antiviral response. The data also indicate that IFNα may influence the production of viral antigens associated with endoplasmic reticulum. Collectively, the intrahepatic transcriptome analyses in this study enriched our understanding of IFN-mediated antiviral effects in CHB patients and provided novel insights into the development of potential strategies to improve IFNα therapy.
Collapse
Affiliation(s)
- Ning Li
- Department of Infectious Diseases, Shanghai Key Laboratory of Infectious Diseases and Biosafety Emergency Response, Shanghai Institute of Infectious Diseases and Biosecurity, National Medical Center for Infectious Diseases, Huashan Hospital, Fudan University, Shanghai, China.,Key Laboratory of Medical Molecular Virology (MOE/MOH), Shanghai Medical College, Fudan University, Shanghai, China
| | - Kangkang Yu
- Department of Infectious Diseases, Shanghai Key Laboratory of Infectious Diseases and Biosafety Emergency Response, Shanghai Institute of Infectious Diseases and Biosecurity, National Medical Center for Infectious Diseases, Huashan Hospital, Fudan University, Shanghai, China.,Key Laboratory of Medical Molecular Virology (MOE/MOH), Shanghai Medical College, Fudan University, Shanghai, China
| | - Minhui Dong
- Department of Infectious Diseases, Shanghai Key Laboratory of Infectious Diseases and Biosafety Emergency Response, Shanghai Institute of Infectious Diseases and Biosecurity, National Medical Center for Infectious Diseases, Huashan Hospital, Fudan University, Shanghai, China.,Key Laboratory of Medical Molecular Virology (MOE/MOH), Shanghai Medical College, Fudan University, Shanghai, China
| | - Jinyu Wang
- Department of Infectious Diseases, Shanghai Key Laboratory of Infectious Diseases and Biosafety Emergency Response, Shanghai Institute of Infectious Diseases and Biosecurity, National Medical Center for Infectious Diseases, Huashan Hospital, Fudan University, Shanghai, China.,Key Laboratory of Medical Molecular Virology (MOE/MOH), Shanghai Medical College, Fudan University, Shanghai, China
| | - Feifei Yang
- Department of Infectious Diseases, Shanghai Key Laboratory of Infectious Diseases and Biosafety Emergency Response, Shanghai Institute of Infectious Diseases and Biosecurity, National Medical Center for Infectious Diseases, Huashan Hospital, Fudan University, Shanghai, China.,Key Laboratory of Medical Molecular Virology (MOE/MOH), Shanghai Medical College, Fudan University, Shanghai, China
| | - Haoxiang Zhu
- Department of Infectious Diseases, Shanghai Key Laboratory of Infectious Diseases and Biosafety Emergency Response, Shanghai Institute of Infectious Diseases and Biosecurity, National Medical Center for Infectious Diseases, Huashan Hospital, Fudan University, Shanghai, China.,Key Laboratory of Medical Molecular Virology (MOE/MOH), Shanghai Medical College, Fudan University, Shanghai, China
| | - Jie Yu
- Department of Infectious Diseases, Shanghai Key Laboratory of Infectious Diseases and Biosafety Emergency Response, Shanghai Institute of Infectious Diseases and Biosecurity, National Medical Center for Infectious Diseases, Huashan Hospital, Fudan University, Shanghai, China.,Key Laboratory of Medical Molecular Virology (MOE/MOH), Shanghai Medical College, Fudan University, Shanghai, China
| | - Jingshu Yang
- Department of Infectious Diseases, Shanghai Key Laboratory of Infectious Diseases and Biosafety Emergency Response, Shanghai Institute of Infectious Diseases and Biosecurity, National Medical Center for Infectious Diseases, Huashan Hospital, Fudan University, Shanghai, China.,Key Laboratory of Medical Molecular Virology (MOE/MOH), Shanghai Medical College, Fudan University, Shanghai, China
| | - Wentao Xie
- Department of Infectious Diseases, Shanghai Key Laboratory of Infectious Diseases and Biosafety Emergency Response, Shanghai Institute of Infectious Diseases and Biosecurity, National Medical Center for Infectious Diseases, Huashan Hospital, Fudan University, Shanghai, China.,Key Laboratory of Medical Molecular Virology (MOE/MOH), Shanghai Medical College, Fudan University, Shanghai, China
| | - Bidisha Mitra
- Cancer Virology Program, UPMC Hillman Cancer Center, Department of Microbiology and Molecular Genetics, University of Pittsburgh, United States
| | - Richeng Mao
- Department of Infectious Diseases, Shanghai Key Laboratory of Infectious Diseases and Biosafety Emergency Response, Shanghai Institute of Infectious Diseases and Biosecurity, National Medical Center for Infectious Diseases, Huashan Hospital, Fudan University, Shanghai, China.,Key Laboratory of Medical Molecular Virology (MOE/MOH), Shanghai Medical College, Fudan University, Shanghai, China
| | - Feizhen Wu
- Key Laboratory of Epigenetics, Institutes of Biomedical Science, Fudan University, China
| | - Haitao Guo
- Cancer Virology Program, UPMC Hillman Cancer Center, Department of Microbiology and Molecular Genetics, University of Pittsburgh, United States
| | - Jiming Zhang
- Department of Infectious Diseases, Shanghai Key Laboratory of Infectious Diseases and Biosafety Emergency Response, Shanghai Institute of Infectious Diseases and Biosecurity, National Medical Center for Infectious Diseases, Huashan Hospital, Fudan University, Shanghai, China.,Key Laboratory of Medical Molecular Virology (MOE/MOH), Shanghai Medical College, Fudan University, Shanghai, China
| |
Collapse
|
28
|
Yu K, Faye AS, Wen T, Guglielminotti JR, Huang Y, Wright JD, D'Alton ME, Friedman AM. Outcomes during delivery hospitalisations with inflammatory bowel disease. BJOG 2022; 129:1073-1083. [PMID: 35152548 DOI: 10.1111/1471-0528.17039] [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: 08/06/2021] [Revised: 10/22/2021] [Accepted: 11/05/2021] [Indexed: 11/30/2022]
Abstract
OBJECTIVE To characterise inflammatory bowel disease (IBD) trends and associated risk during delivery hospitalisations. DESIGN Cross-sectional. SETTING US delivery hospitalisations. POPULATION Delivery hospitalisations in the 2000-2018 National Inpatient Sample. METHODS This study analysed a nationally representative hospital discharge database based on the presence of IBD. Temporal trends in IBD were analysed using joinpoint regression to estimate the average annual percent change (AAPC). IBD severity was characterised by the presence of diagnoses such as penetrating and stricturing disease and history of bowel resection. Risks for adverse outcomes were analysed based on presence of IBD. Poisson regression models were performed with unadjusted and adjusted risk ratios (aRR) as measures of effect. MAIN OUTCOME MEASURE Prevalence of IBD and associated adverse outcomes. RESULTS Of 73 109 790 delivery hospitalisations, 89 965 had a diagnosis of IBD. IBD rose from 0.06% in 2000 to 0.21% in 2018 (AAPC 7.3%, 95% CI 6.7-7.9%). Among deliveries with IBD, IBD severity diagnoses increased from 4.1% to 8.1% from 2000 to 2018. In adjusted analysis, IBD was associated with increased risk for preterm delivery (aRR 1.50, 95% CI 1.47-1.53), severe maternal morbidity (aRR 1.93, 95% CI 1.83-2.04), venous thrombo-embolism (aRR 2.76, 95% CI 2.39-3.18) and surgical injury during caesarean delivery hospitalisation (aRR 5.03, 95% CI 4.76-5.31). In the presence of a severe IBD diagnosis, risk was further increased for all adverse outcomes. CONCLUSION IBD is increasing in the obstetric population and is associated with adverse outcomes. Risk is increased in the presence of a severe IBD diagnosis. TWEETABLE ABSTRACT Deliveries among women with inflammatory bowel disease are increasing. Disease severity is associated with adverse outcomes.
Collapse
Affiliation(s)
- K Yu
- Vagelos College of Physicians and Surgeons, Columbia University, New York, NY, USA
| | - A S Faye
- Department of Medicine, Dr. Henry D. Janowitz Division of Gastroenterology, Icahn School of Medicine at Mount Sinai, New York, NY, USA.,Division of Gastroenterology, Department of Medicine, NYU Grossman School of Medicine, Inflammatory Bowel Disease Center, NYU Langone Health, New York, NY, USA
| | - T Wen
- Department of Obstetrics, Gynecology, and Reproductive Sciences, University of California-San Francisco, San Francisco, CA, USA
| | | | - Y Huang
- Department of Obstetrics and Gynecology, Columbia University, New York, NY, USA
| | - J D Wright
- Department of Obstetrics and Gynecology, Columbia University, New York, NY, USA
| | - M E D'Alton
- Department of Obstetrics and Gynecology, Columbia University, New York, NY, USA
| | - A M Friedman
- Department of Obstetrics and Gynecology, Columbia University, New York, NY, USA
| |
Collapse
|
29
|
Tekkis NP, Rafi D, Brown S, Courtney A, Kawka M, Howell AM, McLean K, Gardiner M, Mavroveli S, Hutchinson P, Tekkis P, Wilkinson P, Sam AH, Savva N, Kontovounisios C, Tekkis N, Rafi D, Brown S, Courtney A, Kawka M, Howell A, McLean K, Gardiner M, Mavroveli S, Hutchinson P, Tekkis P, Wilkinson P, Sam AH, Savva N, Kontovounisios C, Tekkis N, Rafi D, Brown S, Courtney A, Kawka M, Howell A, McLean K, Gardiner M, Mavroveli S, Hutchinson P, Tekkis P, Wilkinson P, Sam AH, Savva N, Kontovounisios C, Tekkis N, Brown S, Kawka M, Mclean K, Savva N, Wilkinson P, Sam AH, Singal A, Chia C, Chia W, Ganesananthan S, Ooi SZY, Pengelly S, Wellington J, Mak S, Subbiah Ponniah H, Heyes A, Aberman I, Ahmed T, Al-Shamaa S, Appleton L, Arshad A, Awan H, Baig Q, Benedict K, Berkes S, Citeroni NL, Damani A, de Sancha A, Fisayo T, Gupta S, Haq M, Heer B, Jones A, Khan H, Kim H, Meiyalagan N, Miller G, Minta N, Mirza L, Mohamed F, Ramjan F, Read P, Soni L, Tailor V, Tas RN, Vorona M, Walker M, Winkler T, Bardon A, Acquaah J, Ball T, Bani W, Elmasry A, Hussein F, Kolluri M, Lusta H, Newman J, Nott M, Perwaiz MI, Rayner R, Shah A, Shaw I, Yu K, Cairns M, Clough R, Gaier S, Hirani D, Jeyapalan T, Li Y, Patel CR, Shabir H, Wang YA, Weatherhead A, Dhiran A, Renney O, Wells P, Ferguson S, Joyce A, Mergo A, Adebayo O, Ahmad J, Akande O, Ang G, Aniereobi E, Awasthi S, Banjoko A, Bates J, Chibada C, Clarke N, Craner I, Desai DD, Dixon K, Duffaydar HI, Kuti M, Mughal AZ, Nair D, Pham MC, Preest GG, Reid R, Sachdeva GS, Selvaratnam K, Sheikh J, Soran V, Stoney N, Wheatle M, Howarth K, Knapp-Wilson A, Lee KS, Mampitiya N, Masson C, McAlinden JJ, McGowan N, Parmar SC, Robinson B, Wahid S, Willis L, Risquet R, Adebayo A, Dhingra L, Kathiravelupillai S, Narayanan R, Soni J, Ghafourian P, Hounat A, Lennon KA, Abdi Mohamud M, Chou W, Chong L, Graham CJ, Piya S, Riad AM, Vennard S, Wang J, Kawar L, Maseland C, Myatt R, Tengku Saifudin TNS, Yong SQ, Douglas F, Ogbechie C, Sharma K, Zafar L, Bajomo MO, Byrne MHV, Obi C, Oluyomi DI, Patsalides MA, Rajananthanan A, Richardson G, Clarke A, Roxas A, Adeboye W, Argus L, McSweeney J, Rahman-Chowdhury M, Hettiarachchi DS, Masood MT, Antypas A, Thomas M, de Andres Crespo M, Zimmerman M, Dhillon A, Abraha S, Burton O, Jalal AHB, Bailey B, Casey A, Kathiravelupillai A, Missir E, Boult H, Campen D, Collins JM, Dulai S, Elhassan M, Foster Z, Horton E, Jones E, Mahapatra S, Nancarrow T, Nyamapfene T, Rimmer A, Robberstad M, Robson-Brown S, Saeed A, Sarwar Y, Taylor C, Vetere G, Whelan MK, Williams J, Zahid D, Chand C, Matthews M. The impact of the COVID-19 pandemic on UK medical education. A nationwide student survey. Med Teach 2022; 44:574-575. [PMID: 34428109 DOI: 10.1080/0142159x.2021.1962835] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Affiliation(s)
| | - Damir Rafi
- School of Medicine, Imperial College London, London, UK
| | - Sam Brown
- Leicester Medical School, University of Leicester, Leicester, UK
| | - Alona Courtney
- Department of Surgery and Cancer, Imperial College London, London, UK
| | - Michal Kawka
- School of Medicine, Imperial College London, London, UK
| | - Ann-Marie Howell
- Department of Surgery and Cancer, Imperial College London, London, UK
| | - Kenneth McLean
- Division of Clinical and Surgical Sciences, University of Edinburgh, Edinburgh, UK
| | - Matthew Gardiner
- Kennedy Institute of Rheumatology, University of Oxford, Oxford, UK
| | | | - Peter Hutchinson
- Department of Clinical Neurosciences, University of Cambridge, Cambridge, UK
| | - Paris Tekkis
- Department of Surgery and Cancer, Imperial College London, London, UK
| | - Paul Wilkinson
- School of Clinical Medicine, University of Cambridge, Cambridge, UK
| | - Amir H Sam
- School of Medicine, Imperial College London, London, UK
| | - Nicos Savva
- Division of Management Science and Operations, London Business School, London, UK
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - J Acquaah
- Plymouth University Peninsula Schools of Medicine and Dentistry
| | - T Ball
- Plymouth University Peninsula Schools of Medicine and Dentistry
| | - W Bani
- Plymouth University Peninsula Schools of Medicine and Dentistry
| | - A Elmasry
- Plymouth University Peninsula Schools of Medicine and Dentistry
| | - F Hussein
- Plymouth University Peninsula Schools of Medicine and Dentistry
| | - M Kolluri
- Plymouth University Peninsula Schools of Medicine and Dentistry
| | - H Lusta
- Plymouth University Peninsula Schools of Medicine and Dentistry
| | - J Newman
- Plymouth University Peninsula Schools of Medicine and Dentistry
| | - M Nott
- Plymouth University Peninsula Schools of Medicine and Dentistry
| | - M I Perwaiz
- Plymouth University Peninsula Schools of Medicine and Dentistry
| | - R Rayner
- Plymouth University Peninsula Schools of Medicine and Dentistry
| | - A Shah
- Plymouth University Peninsula Schools of Medicine and Dentistry
| | - I Shaw
- Plymouth University Peninsula Schools of Medicine and Dentistry
| | - K Yu
- Plymouth University Peninsula Schools of Medicine and Dentistry
| | | | | | - S Gaier
- Queen Mary University of London
| | | | | | - Y Li
- Queen Mary University of London
| | | | | | | | | | - A Dhiran
- St George's Hospital Medical School
| | - O Renney
- St George's Hospital Medical School
| | - P Wells
- St George's Hospital Medical School
| | | | - A Joyce
- The Queen's University of Belfast
| | | | | | - J Ahmad
- The University of Birmingham
| | | | - G Ang
- The University of Birmingham
| | | | | | | | - J Bates
- The University of Birmingham
| | | | | | | | | | - K Dixon
- The University of Birmingham
| | | | - M Kuti
- The University of Birmingham
| | | | - D Nair
- The University of Birmingham
| | | | | | - R Reid
- The University of Birmingham
| | | | | | | | - V Soran
- The University of Birmingham
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - J Soni
- The University of Cambridge
| | | | | | | | | | - W Chou
- The University of East Anglia
| | | | | | - S Piya
- The University of Edinburgh
| | | | | | - J Wang
- The University of Edinburgh
| | | | | | | | | | | | | | | | | | | | | | | | - C Obi
- The University of Leicester
| | | | | | | | | | | | | | | | - L Argus
- The University of Manchester
| | | | | | | | | | | | | | | | | | | | | | | | | | - B Bailey
- University of Brighton and Sussex
| | - A Casey
- University of Brighton and Sussex
| | | | - E Missir
- University of Brighton and Sussex
| | - H Boult
- University of Exeter Medical School
| | - D Campen
- University of Exeter Medical School
| | | | - S Dulai
- University of Exeter Medical School
| | | | - Z Foster
- University of Exeter Medical School
| | - E Horton
- University of Exeter Medical School
| | - E Jones
- University of Exeter Medical School
| | | | | | | | - A Rimmer
- University of Exeter Medical School
| | | | | | - A Saeed
- University of Exeter Medical School
| | - Y Sarwar
- University of Exeter Medical School
| | - C Taylor
- University of Exeter Medical School
| | - G Vetere
- University of Exeter Medical School
| | | | | | - D Zahid
- University of Exeter Medical School
| | - C Chand
- University of Hull and the University of York
| | - M Matthews
- University of Hull and the University of York
| |
Collapse
|
30
|
Zhao Z, Zhang M, Tian J, Yu K, Chen Y, Wang Y. Occurrence and driving forces of different nitrogen forms in the sediments of the grass and algae-type zones of Taihu Lake. Environ Sci Pollut Res Int 2022; 29:30114-30125. [PMID: 34997480 DOI: 10.1007/s11356-021-17784-w] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [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: 08/11/2021] [Accepted: 11/23/2021] [Indexed: 06/14/2023]
Abstract
Excessive nitrogen (N) load in sediments is at risk of release resulting in the degradation of grass-type lake ecosystems. At present, the occurrence characteristics of N forms and the driving forces of organic N (ON) hydrolysis in the sediments of Taihu Lake were still unclear. Here, 52 sampling sites in 7 lake areas in Taihu Lake were investigated to compare the spatial occurrence characteristics of the sedimentary free N (FN), exchangeable N (EN), acid hydrolyzable N (HN), and residual N (RN) and their associated driving forces. The results showed that the total N contents in the dry sediment ranged from 1811.56 to 5594.06 mg kg-1, and the contribution was in the order of RN > HN > EN > FN. Spatially, RN and total organic carbon were significantly consistently influenced by dam construction and deposition algal residue. The HN concentration was high in the estuaries affected by N inputs from the rivers. The coupling relationship of spatial distribution between ON and N forms was revealed. The factors, i.e., algal residue deposition and terrigenous N inputs, were considered as the main driving forces stimulating the ON hydrolysis in the algae-type lake zones. It can be deduced that controlling terrigenous N inputs and sediment suspension may be the key to inhibiting the transformation from grass-type to algae-type lake ecosystem.
Collapse
Affiliation(s)
- Zihan Zhao
- School of Geography, Nanjing Normal University, Nanjing, 210023, People's Republic of China
| | - Mingli Zhang
- School of Geography, Nanjing Normal University, Nanjing, 210023, People's Republic of China.
| | - Jiaming Tian
- School of Geography, Nanjing Normal University, Nanjing, 210023, People's Republic of China
| | - Kangkang Yu
- School of Geography, Nanjing Normal University, Nanjing, 210023, People's Republic of China
| | - Yan Chen
- School of Geography, Nanjing Normal University, Nanjing, 210023, People's Republic of China
| | - Yanhua Wang
- School of Geography, Nanjing Normal University, Nanjing, 210023, People's Republic of China.
- Key Laboratory of Virtual Geographic Environment, Ministry of Education, Nanjing Normal University, 210023, Nanjing, People's Republic of China.
- Jiangsu Center for Collaborative Innovation in Geographical Information Resource Development and Application, Nanjing, 210023, People's Republic of China.
| |
Collapse
|
31
|
Meda R, Fu S, Yu K, Charya A, Kong H, Jang M, Andargie T, Park W, Lee J, Tunc I, Berry G, Marboe C, Shah P, Nathan S, Keller M, Agbor-Enoh S. Comparative Performance Analysis of Donor-Derived Cell-Free DNA to Detect Acute Rejection in Single and Double Lung Transplant Recipients. J Heart Lung Transplant 2022. [DOI: 10.1016/j.healun.2022.01.764] [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: 10/18/2022] Open
|
32
|
Chen Y, Wang Y, Yu K, Zhao Z, Lang X. Occurrence characteristics and source appointment of polycyclic aromatic hydrocarbons and n-alkanes over the past 100 years in southwest China. Sci Total Environ 2022; 808:151905. [PMID: 34838905 DOI: 10.1016/j.scitotenv.2021.151905] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/05/2021] [Revised: 11/16/2021] [Accepted: 11/19/2021] [Indexed: 06/13/2023]
Abstract
The extensive anthropogenic activities and their potential impacts during the Anthropocene have led to a research focus on the sedimentary record. In the present study, the occurrence and temporal variations in the fluxes and compositions of n-alkanes and polycyclic aromatic hydrocarbon (PAHs) were investigated in 210Pb-dated sediment cores from a small catchment near the outflow Tanglangchuan in the western Dianchi Lake, China. The continuing organic contamination (i.e. PAHs and n-alkanes) from inputs to outputs has been of concern. To trace the sources and driving forces, multi indicators were applied. Results showed that the total organic carbon (TOC) contents and C/N ratios varied in the range of 4.20-12.30 mg g-1 dw and 8.64-15.65, respectively, indicating algae- and terrestrial plant-derived organic matter (OM). The flux of Σn-alkanes ranged from 0.67 to 38.86 μg cm-2 a-1 with a peak in 2013. The long-chain n-alkanes (Σn-alk26-35) and short-chain n-alkanes (Σn-alk12-20) accounted for 44.02%-49.38% and 35.32%-41.49% of the Σn-alkanes, respectively. A bimodal distribution of n-alkanes was displayed in the sediments implying the sedimentary OM may be derived from a mixed source of endogenous and exogenous origin. The posterior peak (≥n-C26) compounds in the highest abundance were n-C31 or n-C33 with a significant odd-numbered C predominance, representing terrestrial plant-derived OM. Whereas n-C16 was rich in all sediment profiles reflecting crude oil or incompletely combusted fossil fuel-derived source. The indicators analysis showed an increasing trend of the contribution from terrestrial plants and wet to drought climate during 1873-2019. The sedimentary flux of ΣPAHs ranged between 11.71 and 1231.54 ng cm-2 a-1 and the percent of high-ring PAHs rose annually indicating enhanced anthropogenic activities. In the past 147 years, the results of present study highlight the influence of the agricultural and industrial economy on the catchment outlets.
Collapse
Affiliation(s)
- Yan Chen
- School of Geography, Nanjing Normal University, 1 Wenyuan Road, Qixia, Nanjing 210023, China
| | - Yanhua Wang
- School of Geography, Nanjing Normal University, 1 Wenyuan Road, Qixia, Nanjing 210023, China; Key Laboratory of Virtual Geographic Environment, Ministry of Education, Nanjing Normal University, Nanjing 210023, China; Jiangsu Center for Collaborative Innovation in Geographical Information Resource Development and Application, Nanjing, China.
| | - Kangkang Yu
- School of Geography, Nanjing Normal University, 1 Wenyuan Road, Qixia, Nanjing 210023, China
| | - Zihan Zhao
- School of Geography, Nanjing Normal University, 1 Wenyuan Road, Qixia, Nanjing 210023, China
| | - Xiulu Lang
- School of Geography, Nanjing Normal University, 1 Wenyuan Road, Qixia, Nanjing 210023, China
| |
Collapse
|
33
|
Zhuang B, Yu K, Zhang ZW, Gong DJ, Yu SA. [Application of totally visceral sac separation in abdominal wall hernia]. Zhonghua Yi Xue Za Zhi 2021; 101:3829-3832. [PMID: 34895426 DOI: 10.3760/cma.j.cn112137-20210715-01579] [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: 11/05/2022]
Abstract
To investigate the application of totally visceral sac separation (TVS) in the treatment of ventral hernia, to summarize the operation procedure and to analyze its safety and effectiveness. Twenty-one consecutive primary and secondary ventral hernias cases were repaired using the TVS procedure from December 2019 to December 2020. A large mesh should be placed in retrorectus sublay or underlay preperitoneal using the minimally invasive procedure. The indications for this procedure include umbilical, incisional hernia, linea alba hernia, lumbar hernia, and parastomal hernia. All the operations were successful, of which 2 cases were converted to laparotomy because of the failure of anterior peritoneal cavity construction and the difficulty of anterior defect closure. The mean operation time was 140 mins (70-260 min), postoperative pain was mild, and the mean visual analogue scale(VAS) was 2.5 (1-4) on the first postoperative day. There were no recurrent cases during the follow-up for more than 6 months. TVS procedure is safe and highly reproducible. Without expensive anti-adhesion mesh and fixation tacker, the technology of TVS is a good technique for the surgical treatment of ventral hernia.
Collapse
Affiliation(s)
- B Zhuang
- Department of General Surgery, Jinhua Hospital, Zhejiang University School of Medicine, Jinhua 321000, China
| | - K Yu
- Department of General Surgery, Jinhua Hospital, Zhejiang University School of Medicine, Jinhua 321000, China
| | - Z W Zhang
- Department of General Surgery, Jinhua Hospital, Zhejiang University School of Medicine, Jinhua 321000, China
| | - D J Gong
- Department of General Surgery, Jinhua Hospital, Zhejiang University School of Medicine, Jinhua 321000, China
| | - S A Yu
- Department of General Surgery, Jinhua Hospital, Zhejiang University School of Medicine, Jinhua 321000, China
| |
Collapse
|
34
|
Chen J, Chen NC, Yu K, Hall CM. Does Entrepreneurs' Darwinian Social Identity Contribute to Business Performance via Corporate Social Responsibility in China? The Role of Entrepreneurs' Well-Being. Front Psychol 2021; 12:781399. [PMID: 34970198 PMCID: PMC8712748 DOI: 10.3389/fpsyg.2021.781399] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2021] [Accepted: 11/19/2021] [Indexed: 11/13/2022] Open
Abstract
Although the impact of entrepreneurs' social identity on successful entrepreneurship has attracted much scholarly attention, it is often to evaluate successful entrepreneurship through direct channel to financial performance. Recently, there is a growing body of researches beginning to pay attention to the impact of entrepreneurs' social identity on corporate social responsibility (CSR) regarded as indirect social aspect channel to successful entrepreneurship. However, little is known regarding how entrepreneurs' Darwinian social identity affects CSR, which in turn, affects business performance. This study addresses this issue by combining stakeholder theory with social identity theory, to investigate the relationship between entrepreneurs' Darwinian social identity and business performance via CSR. In addition, the moderating effect of entrepreneur's well-being is further examined to uncover the interaction effect of the individual psychological resource on business performance. The empirical results indicate that entrepreneurs' Darwinian social identity contributes positively to CSR, so as further to business performance. In addition, this relationship is further found to be significantly moderated by entrepreneurs' well-being. The results indicate that entrepreneurs can achieve business success via CSR, by which entrepreneurs can further acquire successful entrepreneurship through caring more about their well-being.
Collapse
Affiliation(s)
- Jinliang Chen
- Business School, Central University of Finance and Economics, Beijing, China
| | - Ning Chris Chen
- Department of Management, Marketing, and Entrepreneurship, University of Canterbury, Christchurch, New Zealand
| | - Kangkang Yu
- School of Agricultural Economics and Rural Development, Renmin University of China, Beijing, China
| | - Colin Michael Hall
- Department of Management, Marketing, and Entrepreneurship, University of Canterbury, Christchurch, New Zealand
| |
Collapse
|
35
|
Chan RJ, Crichton M, Crawford-Williams F, Agbejule OA, Yu K, Hart NH, de Abreu Alves F, Ashbury FD, Eng L, Fitch M, Jain H, Jefford M, Klemanski D, Koczwara B, Loh K, Prasad M, Rugo H, Soto-Perez-de-Celis E, van den Hurk C, Chan A. The efficacy, challenges, and facilitators of telemedicine in post-treatment cancer survivorship care: an overview of systematic reviews. Ann Oncol 2021; 32:1552-1570. [PMID: 34509615 DOI: 10.1016/j.annonc.2021.09.001] [Citation(s) in RCA: 54] [Impact Index Per Article: 18.0] [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: 06/01/2021] [Revised: 08/16/2021] [Accepted: 09/03/2021] [Indexed: 12/26/2022] Open
Abstract
BACKGROUND Telemedicine services have been increasingly used to facilitate post-treatment cancer survivorship care, including improving access; monitoring health status, health behaviors, and symptom management; enhancing information exchange; and mitigating the costs of care delivery, especially since the COVID-19 pandemic. To inform guidance for the use of telemedicine in the post-COVID era, the aim of this overview of systematic reviews (SRs) was to evaluate the efficacy of, and survivor engagement in, telemedicine interventions in the post-treatment survivorship phase, and to consider implementation barriers and facilitators. METHODS PubMed, Cochrane CENTRAL, CINAHL, Embase, and Web of Science databases were searched. SRs that examined the use of telemedicine in the post-treatment phase of cancer survivorship, published between January 2010 and April 2021, were included. Efficacy data were synthesized narratively. Implementation barriers and facilitators were synthesized using the Consolidated Framework for Implementation Research. RESULTS Twenty-nine SRs were included. A substantive body of evidence found telemedicine to benefit the management of psychosocial and physical effects, particularly for improving fatigue and cognitive function. There was a lack of evidence on the use of telemedicine in the prevention and surveillance for recurrences and new cancers as well as management of chronic medical conditions. This overview highlights a range of diverse barriers and facilitators at the patient, health service, and system levels. CONCLUSIONS This review highlights the benefits of telemedicine in addressing psychosocial and physical effects, but not in other areas of post-treatment cancer survivorship care. This large review provides practical guidance for use of telemedicine in post-treatment survivorship care.
Collapse
Affiliation(s)
- R J Chan
- Caring Futures Institute, College of Nursing and Health Sciences, Flinders University, Adelaide, Australia; Cancer and Palliative Care Outcomes Centre, School of Nursing, Queensland University of Technology, Brisbane, Australia.
| | - M Crichton
- Caring Futures Institute, College of Nursing and Health Sciences, Flinders University, Adelaide, Australia; Bond University Nutrition and Dietetics Research Group, Bond University, Gold Coast, Australia
| | - F Crawford-Williams
- Caring Futures Institute, College of Nursing and Health Sciences, Flinders University, Adelaide, Australia; Cancer and Palliative Care Outcomes Centre, School of Nursing, Queensland University of Technology, Brisbane, Australia
| | - O A Agbejule
- Caring Futures Institute, College of Nursing and Health Sciences, Flinders University, Adelaide, Australia; Cancer and Palliative Care Outcomes Centre, School of Nursing, Queensland University of Technology, Brisbane, Australia
| | - K Yu
- Department of Pharmacy, National University of Singapore, Singapore
| | - N H Hart
- Caring Futures Institute, College of Nursing and Health Sciences, Flinders University, Adelaide, Australia; Cancer and Palliative Care Outcomes Centre, School of Nursing, Queensland University of Technology, Brisbane, Australia; School of Medical and Health Sciences, Edith Cowan University, Perth, Australia; Institute for Health Research, University of Notre Dame Australia, Perth, Australia
| | - F de Abreu Alves
- Department of Stomatology, A. C. Camargo Cancer Center, São Paulo, Brazil
| | - F D Ashbury
- Dalla Lana School of Public Health, University of Toronto, Toronto, Canada; Department of Oncology, University of Calgary, Calgary, Canada
| | - L Eng
- Division of Medical Oncology and Hematology, Department of Medicine, Princess Margaret Cancer Centre, Toronto, Canada; University Health Network, University of Toronto, Toronto, Canada
| | - M Fitch
- Bloomberg Faculty of Nursing, University of Toronto, Toronto, Canada
| | - H Jain
- Adult Hematolymphoid Division, Medical Oncology, Tata Memorial Centre, Affiliated to Homi Bhabha National Institute, Mumbai, India
| | - M Jefford
- Department of Health Services Research, Peter MacCallum Cancer Centre, Melbourne, Australia; Australian Cancer Survivorship Centre, Peter MacCallum Cancer Centre, Melbourne, Australia; Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, Australia
| | - D Klemanski
- Cancer Support Service Line, The Ohio State University Comprehensive Cancer Center - James Cancer Hospital, Columbus, USA
| | - B Koczwara
- Flinders Medical Centre, College of Medicine and Public Health, Flinders University, Adelaide, Australia
| | - K Loh
- Division of Supportive and Palliative Care, National Cancer Centre Singapore, Singapore
| | - M Prasad
- Paediatric Oncology, Department of Medical Oncology, Tata Memorial Centre, Mumbai, India
| | - H Rugo
- Division of Hematology and Oncology, University of California San Francisco, San Francisco, USA
| | - E Soto-Perez-de-Celis
- Department of Geriatrics. Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City, Mexico
| | - C van den Hurk
- Netherlands Comprehensive Cancer Organisation, Department of Research and Development, Utrecht, the Netherlands
| | - A Chan
- School of Pharmacy & Pharmaceutical Sciences, University of California Irvine, Irvine, USA
| | | |
Collapse
|
36
|
Hernández JC, Gomez F, Stadheim J, Perez M, Bekele B, Yu K, Henning T. Hourglass Body Shape Ideal Scale and disordered eating. Body Image 2021; 38:85-94. [PMID: 33839648 DOI: 10.1016/j.bodyim.2021.03.013] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/27/2020] [Revised: 03/20/2021] [Accepted: 03/20/2021] [Indexed: 11/18/2022]
Abstract
Disordered eating research has long considered the negative consequences of internalizing sociocultural appearance ideals (e.g., thin ideal, muscular ideal). However, the implications of internalizing a curvy or "hourglass" body shape remains unclear. The Hourglass Body Shape Ideal Scale (HBSIS) is a new self-report questionnaire that was developed and evaluated to appropriately measure the extent women subscribe to an hourglass body shape ideal. The measure was administered to a community and undergraduate sample of women via two separate online studies. Study 1 (N = 916) provided support for the factor structure as well as the convergent and discriminant validity of the HBSIS. The HBSIS was correlated with measures of appearance orientation, overweight preoccupation, and disordered eating. HBSIS was associated with disordered eating even after controlling for age, BMI, thin ideal and muscular ideal internalization. Further, higher HBSIS scores were associated with increased likelihood of having clinical levels of disordered eating symptoms. There were no racial and ethnic group differences on HBSIS. Study 2 (N = 195) replicated the factor structure of Study 1, in addition to its convergent and discriminant validity. The HBSIS allows for more precise examination of appearance-ideal internalization, capturing a unique construct understudied within eating pathology literature.
Collapse
Affiliation(s)
| | - F Gomez
- Arizona State University, United States
| | | | - M Perez
- Arizona State University, United States.
| | - B Bekele
- Arizona State University, United States
| | - K Yu
- Arizona State University, United States
| | - T Henning
- Arizona State University, United States
| |
Collapse
|
37
|
Liu Z, Mao X, Wu J, Yu K, Yang Q, Suo C, Lu M, Jin L, Zhang T, Chen X. World-wide Prevalence of Substitutions in HCV Genome Associated With Resistance to Direct-Acting Antiviral Agents. Clin Gastroenterol Hepatol 2021; 19:1906-1914.e25. [PMID: 31683059 DOI: 10.1016/j.cgh.2019.10.046] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/28/2019] [Revised: 10/07/2019] [Accepted: 10/25/2019] [Indexed: 02/07/2023]
Abstract
BACKGROUND & AIMS The efficacy of direct-acting antiviral agents against hepatitis C virus (HCV) infection can be compromised by substitutions in the HCV genome that occur before treatment (resistance-associated substitutions [RASs]). We performed a meta-analysis to determine the prevalence of RASs and their effects. METHODS We searched publication databases for studies of HCV RNA substitutions that mediate resistance to direct-acting antiviral agents. Findings from 50 studies of the prevalence of RAS in HCV, from 32 countries, were used in a meta-analysis. We retrieved the HCV RNA sequence from the Los Alamos HCV sequence database to estimate the prevalence of the RASs. The degree of resistance to treatment conferred by each RAS was determined based on fold-change in the 50% effective concentration of the drugs. RESULTS Our final analysis included data from 49,744 patients with HCV infection and 12,612 HCV sequences. We estimated the prevalence of 56 RASs that encoded amino acids and 114 specific RASs. The average prevalence of RASs was highest in HCV genotype (GT) 6, followed by HCV GT1a, GT2, GT1b, GT3, and GT4. The highest prevalence of RASs observed encoded Q80K in NS3 to NS4A of HCV GT1a, Y93T in NS5A of GT1a, and C316N in NS5B of GT1b. The greatest number of RASs were observed at D168 in NS3 to NS4A, at Y93 in NS5A, and at C316 in NS5B. The prevalence of RASs and mutation burdens were high in Japan, the United States, Germany, Thailand, and the United Kingdom; low in Russia, Brazil, Egypt, and India; and intermediate in China, Canada, Australia, Spain, and France. CONCLUSIONS In a meta-analysis, we found evidence for 114 RASs in HCV of different genotypes. Patients with HCV infection should be tested for RASs before treatment is selected, especially in regions with a high prevalence of RASs.
Collapse
Affiliation(s)
- Zhenqiu Liu
- State Key Laboratory of Genetic Engineering and Collaborative Innovation Center for Genetics and Development, School of Life Sciences, Shanghai, China; Fudan University Taizhou Institute of Health Sciences, Taizhou, China
| | - Xianhua Mao
- State Key Laboratory of Genetic Engineering and Collaborative Innovation Center for Genetics and Development, School of Life Sciences, Shanghai, China; Fudan University Taizhou Institute of Health Sciences, Taizhou, China
| | - Jiaqi Wu
- School of Life Science and Technology, Tokyo Institute of Technology, Meguro-ku, Tokyo, Japan
| | - Kangkang Yu
- Department of Infectious Diseases, Huashan Hospital, Shanghai, China
| | - Qin Yang
- State Key Laboratory for Oncogenes and Related Genes, Shanghai Cancer Institute, Shanghai Jiao Tong University, Shanghai, China
| | - Chen Suo
- Department of Epidemiology, School of Public Health, Shanghai, China; Key Laboratory of Public Health Safety, Fudan University, Ministry of Education, Beijing, China
| | - Ming Lu
- Clinical Epidemiology Unit, Qilu Hospital of Shandong University, Jinan, China
| | - Li Jin
- State Key Laboratory of Genetic Engineering and Collaborative Innovation Center for Genetics and Development, School of Life Sciences, Shanghai, China; Fudan University Taizhou Institute of Health Sciences, Taizhou, China; Human Phenome Institute, Fudan University, Shanghai, China
| | - Tiejun Zhang
- Department of Epidemiology, School of Public Health, Shanghai, China; Key Laboratory of Public Health Safety, Fudan University, Ministry of Education, Beijing, China
| | - Xingdong Chen
- State Key Laboratory of Genetic Engineering and Collaborative Innovation Center for Genetics and Development, School of Life Sciences, Shanghai, China; Fudan University Taizhou Institute of Health Sciences, Taizhou, China; Human Phenome Institute, Fudan University, Shanghai, China.
| |
Collapse
|
38
|
Li X, Wu S, Yu K, Hou J, Jiang C, Li K, Chu Z, Jiang X, Yu X, Xu W. A dual-site controlled pH probe revealing the pH of sperm cytoplasm and screening for healthy spermatozoa. J Mater Chem B 2021; 9:3662-3665. [PMID: 33870986 DOI: 10.1039/d1tb00108f] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
A dual-site controlled pH probe, which is composed of gold nanoparticles and modified with rhodamine and fluorescein derivatives, was applied to sensitively monitor intracellular pH changes in sperm. The pH probe revealed the intracellular pH of sperm under different conditions and demonstrated the lower pH in asthenozoospermia patients as compared to healthy individuals. Importantly, the pH probe can help screen for healthy sperm.
Collapse
Affiliation(s)
- Xiaoliang Li
- Department of Obstetrics/Gynecology, Joint Laboratory of Reproductive Medicine, SCU-CUHK, Key Laboratory of Obstetric, Gynaecologic and Paediatric Diseases and Birth Defects of Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, 610041, China.
| | - Sixian Wu
- Department of Obstetrics/Gynecology, Joint Laboratory of Reproductive Medicine, SCU-CUHK, Key Laboratory of Obstetric, Gynaecologic and Paediatric Diseases and Birth Defects of Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, 610041, China.
| | - Kangkang Yu
- Key Laboratory of Bio-Resources and Eco-Environment (Ministry of Education), College of Life Sciences, Sichuan University, Chengdu, 610064, China
| | - Jianwen Hou
- Department of Obstetrics/Gynecology, Joint Laboratory of Reproductive Medicine, SCU-CUHK, Key Laboratory of Obstetric, Gynaecologic and Paediatric Diseases and Birth Defects of Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, 610041, China.
| | - Chuan Jiang
- Department of Obstetrics/Gynecology, Joint Laboratory of Reproductive Medicine, SCU-CUHK, Key Laboratory of Obstetric, Gynaecologic and Paediatric Diseases and Birth Defects of Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, 610041, China.
| | - Kun Li
- Key Laboratory of Green Chemistry and Technology (Ministry of Education), College of Chemistry, Sichuan University, Chengdu, 610064, China.
| | - Zhiwen Chu
- West China School of Pharmacy, Sichuan University, Chengdu, 610064, China
| | - Xiaohui Jiang
- Human Sperm Bank, West China Second University Hospital, Sichuan University, Chengdu, 610041, China
| | - Xiaoqi Yu
- Key Laboratory of Green Chemistry and Technology (Ministry of Education), College of Chemistry, Sichuan University, Chengdu, 610064, China.
| | - Wenming Xu
- Department of Obstetrics/Gynecology, Joint Laboratory of Reproductive Medicine, SCU-CUHK, Key Laboratory of Obstetric, Gynaecologic and Paediatric Diseases and Birth Defects of Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, 610041, China. and Reproductive Endocrinology and Regulation Laboratory, West China Second University Hospital, Sichuan University, Chengdu, 610041, China
| |
Collapse
|
39
|
Yu K, Lee K, Afrifa-Yamoah E, Guo J, Pachter N, Harrison K, Goldblatt J, Xiao J, Zhang G. Identification of candidate congenital heart defects biomarkers by applying a random forest approach on DNA methylation data. Atherosclerosis 2021. [DOI: 10.1016/j.atherosclerosis.2021.06.670] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
|
40
|
Benítez Dorta R, Yu K, Sirota M, Malats N, Pineda S. Characterization of the tumor-infiltrating immune repertoire in Muscle Invasive Bladder Cancer. Eur Urol 2021. [DOI: 10.1016/s0302-2838(21)00848-4] [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: 11/29/2022]
|
41
|
Wongvibulsin S, Pahalyants V, Kalinich M, Murphy W, Yu K, Wang F, Chen S, Reynolds K, Kwatra S, Semenov Y. 379 Epidemiology and risk factors for the development of cutaneous toxicities in patients treated with immune checkpoint inhibitors: A United States population-level analysis. J Invest Dermatol 2021. [DOI: 10.1016/j.jid.2021.02.401] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
42
|
Wu L, Yu K, Cue Y, Zhu X, Yang Z, Ma J. [Speckle-type POZ protein up-regulates c-Jun protein expression and promotes proliferation and invasion of renal carcinoma cells]. Nan Fang Yi Ke Da Xue Xue Bao 2021; 41:447-452. [PMID: 33849838 DOI: 10.12122/j.issn.1673-4254.2021.03.19] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
OBJECTIVE To investigate the effect of speckle-type POZ protein (SPOP) on proliferation, apoptosis, migration and invasion of renal cell carcinoma (RCC) and explore the potential mechanisms. OBJECTIVE Renal carcinoma cell lines (786-O, A704, and Caki-2) cultured in vitro were transfected with a SPOP-overexpressing plasmid, and the changes in proliferation of the cells were detected using colony formation and MTT assay; TUNEL assay was used to assess apoptosis of the cells. The changes in migration and invasion abilities of the cells were examined using wound healing assay and Transwell assay. The mRNA and protein levels of SPOP and c-Jun in the transfected cells were measured using real-time PCR and Western blotting. OBJECTIVE SPOP over-expression obviously promoted the proliferation, migration and invasion of 786-O, A704 and Caki-2 cells (P < 0.05). Compared with the control cells, 786-o and Caki-2 cells over-expressing SPOP exhibited significantly lowered apoptosis rates (P < 0.05). The results of real-time PCR demonstrated that the transfected cells did not show obvious changes in the mRNA level of c-Jun, but the protein expressions of SPOP and c-jun increased significantly as shown by Western blotting (P < 0.05). OBJECTIVE SPOP can promote proliferation, migration, and invasion and suppress apoptosis of renal carcinoma cells possibly by promoting the expression of c-Jun.
Collapse
Affiliation(s)
- L Wu
- Key Laboratory of Cancer Research and Clinical Laboratory Diagnosis, Bengbu 233030, China
| | - K Yu
- Key Laboratory of Cancer Research and Clinical Laboratory Diagnosis, Bengbu 233030, China
| | - Y Cue
- Department of Clinical Laboratory, Fuyang Women and Children's Hospital, Fuyang 236000, China
| | - X Zhu
- Department of Laboratory Medicine, Bengbu 233030, China
| | - Z Yang
- Department of Laboratory Medicine, Bengbu 233030, China
| | - J Ma
- Department of Biochemistry and Molecular Biology, School of Laboratory Medicine, Bengbu Medical College, Bengbu 233030, China
| |
Collapse
|
43
|
Bu Y, Wang H, Ma X, Han C, Jia X, Zhang J, Liu Y, Peng Y, Yang M, Yu K, Wang C. Untargeted Metabolomic Profiling of the Correlation Between Prognosis Differences and PD-1 Expression in Sepsis: A Preliminary Study. Front Immunol 2021; 12:594270. [PMID: 33868224 PMCID: PMC8046931 DOI: 10.3389/fimmu.2021.594270] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2020] [Accepted: 02/24/2021] [Indexed: 12/14/2022] Open
Abstract
Objectives: The mortality rate of sepsis remains very high. Metabolomic techniques are playing increasingly important roles in diagnosis and treatment in critical care medicine. The purpose of our research was to use untargeted metabolomics to identify and analyze the common differential metabolites among patients with sepsis with differences in their 7-day prognosis and blood PD-1 expression and analyze their correlations with environmental factors. Methods: Plasma samples from 18 patients with sepsis were analyzed by untargeted LC-MS metabolomics. Based on the 7-day prognoses of the sepsis patients or their levels of PD-1 expression on the surface of CD4+ T cells in the blood, we divided the patients into two groups. We used a combination of multidimensional and monodimensional methods for statistical analysis. At the same time, the Spearman correlation analysis method was used to analyze the correlation between the differential metabolites and inflammatory factors. Results: In the positive and negative ionization modes, 16 and 8 differential metabolites were obtained between the 7-day death and survival groups, respectively; 5 and 8 differential metabolites were obtained between the high PD-1 and low PD-1 groups, respectively. We identified three common differential metabolites from the two groups, namely, PC (P-18:0/14:0), 2-ethyl-2-hydroxybutyric acid and glyceraldehyde. Then, we analyzed the correlations between environmental factors and the common differences in metabolites. Among the identified metabolites, 2-ethyl-2-hydroxybutyric acid was positively correlated with the levels of IL-2 and lactic acid (Lac) (P < 0.01 and P < 0.05, respectively). Conclusions: These three metabolites were identified as common differential metabolites between the 7-day prognosis groups and the PD-1 expression level groups of sepsis patients. They may be involved in regulating the expression of PD-1 on the surface of CD4+ T cells through the action of related environmental factors such as IL-2 or Lac, which in turn affects the 7-day prognosis of sepsis patients.
Collapse
Affiliation(s)
- Y Bu
- Department of Critical Care Medicine, Harbin Medical University Cancer Hospital, Harbin, China
| | - H Wang
- Department of Critical Care Medicine, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - X Ma
- Department of Critical Care Medicine, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - C Han
- Department of Critical Care Medicine, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - X Jia
- Department of Critical Care Medicine, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - J Zhang
- Department of Critical Care Medicine, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Y Liu
- Department of Critical Care Medicine, Harbin Medical University Cancer Hospital, Harbin, China
| | - Y Peng
- Department of Critical Care Medicine, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - M Yang
- Department of Critical Care Medicine, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - K Yu
- Department of Critical Care Medicine, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - C Wang
- Department of Critical Care Medicine, Harbin Medical University Cancer Hospital, Harbin, China
| |
Collapse
|
44
|
Abstract
PurposeThis study examines the role of financial service providers (FSPs) in assessing the supply chain credit of small and medium-sized enterprises (SMEs) and how they help SMEs obtain supply chain finance (SCF) through an established digital platform using big data analytics (BDA).Design/methodology/approachThis study conducted data mining analysis on the archival data of China's FSPs in the mobile production industry from 2015 to 2018, using neural networks in the first stage and multiple regression in the second stage.FindingsThe findings suggest that digital platforms sponsored by FSPs have a discriminative effect based on implicit BDA on identifying the quality and potential risks of borrowers. The results also show that tailored information utilised by FSPs has a supportive effect based on explicit BDA in helping SMEs obtain financing.Originality/valueThis study contributes to the emergent research on BDA in supply chain management by extending the contextual research on information signalling and platform theory in SCF. Furthermore, it examines the distinctive financing decision models of FSPs and provides a solution that addresses the information deficiency and overload of both lenders and borrowers and plays a certain reference role in alleviating the financing problems of SMEs.
Collapse
|
45
|
Gu Y, Wang C, Chen S, Tang J, Guo X, Hu W, Cui A, Zhang D, Yu K, Chen M. A Critical Role of Peptidylprolyl Isomerase A Pseudogene 22/microRNA-197-3p/Peptidylprolyl Isomerase A Axis in Hepatocellular Carcinoma. Front Genet 2021; 12:604461. [PMID: 33790943 PMCID: PMC8006304 DOI: 10.3389/fgene.2021.604461] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [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: 09/09/2020] [Accepted: 02/26/2021] [Indexed: 12/09/2022] Open
Abstract
The burden of hepatocellular carcinoma (HCC) worldwide is increasing over time, while the underlying molecular mechanism of HCC development is still under exploration. Pseudogenes are classified as a special type of long non-coding RNAs (lncRNAs), and they played a vital role in regulating tumor-associated gene expression. Here, we report that a pseudogene peptidylprolyl isomerase A pseudogene 22 (PPIAP22) and its parental gene peptidylprolyl isomerase A (PPIA) were upregulated in HCC and were associated with the clinical outcomes of HCC. Further investigation revealed that PPIAP22 might upregulate the expression of PPIA through sponging microRNA (miR)-197-3p, behaving as competing endogenous RNA (ceRNA). PPIA could participate in the development of HCC by regulating mRNA metabolic process and tumor immunity based on the functional enrichment analysis. We also found a strong correlation between the expression levels of PPIA and the immune cell infiltration or the expression of chemokines, especially macrophage, C-C motif chemokine ligand 15 (CCL15), and C-X-C motif chemokine ligand 12 (CXCL12). Our findings demonstrate that the PPIAP22/miR-197-3p/PPIA axis plays a vital role in the progression of HCC by increasing the malignancy of tumor cells and regulating the immune cell infiltration, especially macrophage, through CCL15-CCR1 or CXCL12-CXCR4/CXCR7 pathways.
Collapse
Affiliation(s)
- Yuwei Gu
- Department of Infectious Diseases, Huashan Hospital, Shanghai, China
| | - Chao Wang
- Emergency Department, Huashan Hospital, Shanghai, China
| | - Shengsen Chen
- Department of Endoscopy, Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), Hangzhou, China.,Institute of Cancer and Basic Medicine (IBMC), Chinese Academy of Sciences, Hangzhou, China
| | - Jia Tang
- Department of Infectious Diseases, Huashan Hospital, Shanghai, China
| | - Xiaoxiao Guo
- Department of Infectious Diseases, Huashan Hospital, Shanghai, China
| | - Wei Hu
- Shanghai Medical College of Fudan University, Shanghai, China
| | - An Cui
- Department of Infectious Diseases, Huashan Hospital, Shanghai, China
| | - Dian Zhang
- Emergency Department, Huashan Hospital, Shanghai, China
| | - Kangkang Yu
- Department of Infectious Diseases, Huashan Hospital, Shanghai, China
| | - Mingquan Chen
- Department of Infectious Diseases, Huashan Hospital, Shanghai, China.,Emergency Department, Huashan Hospital, Shanghai, China
| |
Collapse
|
46
|
Lu Q, Liu B, Yu K. Effect of supplier-buyer cooperation on supply chain financing availability of SMEs. International Journal of Logistics Research and Applications 2021. [DOI: 10.1080/13675567.2021.1897090] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Qiang Lu
- School of E-Business and Logistics, Beijing Technology and Business University, Beijing, People’s Republic of China
| | - Beini Liu
- School of Business, Beijing Technology and Business University, Beijing, People’s Republic of China
| | - Kangkang Yu
- School of Agricultural Economics and Rural Development, Renmin University of China, Beijing, People’s Republic of China
| |
Collapse
|
47
|
Yu K, Yang J, Xie W, Wu F, Wang M, Li N. Integrated bioinformatic analysis revealed biological processes and immune cells implicated in autoimmune hepatitis. J Cell Physiol 2021; 236:5411-5420. [PMID: 33595095 DOI: 10.1002/jcp.30246] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [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: 02/24/2020] [Revised: 12/12/2020] [Accepted: 12/15/2020] [Indexed: 12/23/2022]
Abstract
Autoimmune hepatitis (AIH) is an immune-mediated inflammatory liver disease for which the pathogenesis remains incompletely understood. The current study aimed to reveal key biological processes and immune cells implicated in AIH by integrated bioinformatic analysis. The global gene expression in livers from wild-type BALB/c mice, mice with Tgfb1 deficiency, and mice with both Tgfb1 and Ifng deficiency was assessed by microarray data analysis. Differentially expressed genes were identified and subjected to functional enrichment analysis. AIH mice with Tgfb1 deletion showed significantly enhanced immune responses but impaired metabolic processes, whereas increased T cell activation and cytokine production, but weakened organic acid and lipid metabolic processes were observed in mice with deletion of both Tgfb1 and Ifng. In addition, infiltration of immune cells was evaluated by CIBERSORT. Increased infiltration of T cells, macrophages, and natural killer cells, and decreased infiltration of neutrophils, eosinophils, plasma cells, and B cells were observed in AIH mice. In conclusion, we identified potential biological processes and immune cells that contributed to AIH; further investigations are needed to confirm these findings and thus provide a potential novel therapeutic target for AIH treatment.
Collapse
Affiliation(s)
- Kangkang Yu
- Department of Infectious Diseases, Huashan Hospital, Fudan University, Shanghai, China
| | - Jingshu Yang
- Department of Infectious Diseases, Huashan Hospital, Fudan University, Shanghai, China
| | - Wentao Xie
- Department of Infectious Diseases, Huashan Hospital, Fudan University, Shanghai, China
| | - Feizhen Wu
- Key Laboratory of Epigenetics, Institutes of Biomedical Sciences, Fudan University, Shanghai, China
| | - Mei Wang
- Department of Geriatrics, Shanghai General Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Ning Li
- Department of Infectious Diseases, Huashan Hospital, Fudan University, Shanghai, China
| |
Collapse
|
48
|
Hu C, Liu Z, Jiang Y, Shi O, Zhang X, Xu K, Suo C, Wang Q, Song Y, Yu K, Mao X, Wu X, Wu M, Shi T, Jiang W, Mu L, Tully DC, Xu L, Jin L, Li S, Tao X, Zhang T, Chen X. Early prediction of mortality risk among patients with severe COVID-19, using machine learning. Int J Epidemiol 2021; 49:1918-1929. [PMID: 32997743 PMCID: PMC7543461 DOI: 10.1093/ije/dyaa171] [Citation(s) in RCA: 50] [Impact Index Per Article: 16.7] [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] [Accepted: 08/10/2020] [Indexed: 01/08/2023] Open
Abstract
Background Coronavirus disease 2019 (COVID-19), caused by severe acute respiratory syndrome coronavirus 2 infection, has been spreading globally. We aimed to develop a clinical model to predict the outcome of patients with severe COVID-19 infection early. Methods Demographic, clinical and first laboratory findings after admission of 183 patients with severe COVID-19 infection (115 survivors and 68 non-survivors from the Sino-French New City Branch of Tongji Hospital, Wuhan) were used to develop the predictive models. Machine learning approaches were used to select the features and predict the patients’ outcomes. The area under the receiver operating characteristic curve (AUROC) was applied to compare the models’ performance. A total of 64 with severe COVID-19 infection from the Optical Valley Branch of Tongji Hospital, Wuhan, were used to externally validate the final predictive model. Results The baseline characteristics and laboratory tests were significantly different between the survivors and non-survivors. Four variables (age, high-sensitivity C-reactive protein level, lymphocyte count and d-dimer level) were selected by all five models. Given the similar performance among the models, the logistic regression model was selected as the final predictive model because of its simplicity and interpretability. The AUROCs of the external validation sets were 0.881. The sensitivity and specificity were 0.839 and 0.794 for the validation set, when using a probability of death of 50% as the cutoff. Risk score based on the selected variables can be used to assess the mortality risk. The predictive model is available at [https://phenomics.fudan.edu.cn/risk_scores/]. Conclusions Age, high-sensitivity C-reactive protein level, lymphocyte count and d-dimer level of COVID-19 patients at admission are informative for the patients’ outcomes.
Collapse
Affiliation(s)
- Chuanyu Hu
- Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Zhenqiu Liu
- State Key Laboratory of Genetic Engineering, Human Phenome Institute, and School of Life Sciences, Fudan University, Shanghai, China.,Fudan University Taizhou Institute of Health Sciences, Taizhou, China
| | - Yanfeng Jiang
- State Key Laboratory of Genetic Engineering, Human Phenome Institute, and School of Life Sciences, Fudan University, Shanghai, China.,Fudan University Taizhou Institute of Health Sciences, Taizhou, China
| | - Oumin Shi
- Health Science Center, Shenzhen Second People's Hospital, TFirst Affiliated Hospital of Shenzhen University, Shenzhen, China
| | - Xin Zhang
- Key Laboratory of Public Health Safety, Fudan University, Ministry of Education, Shanghai, China.,Department of Epidemiology, School of Public Health, Fudan University, Shanghai, China
| | - Kelin Xu
- Department of Biostatistics, School of Public Health, Fudan University, Shanghai, China
| | - Chen Suo
- Key Laboratory of Public Health Safety, Fudan University, Ministry of Education, Shanghai, China.,Department of Epidemiology, School of Public Health, Fudan University, Shanghai, China
| | - Qin Wang
- Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Yujing Song
- Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Kangkang Yu
- Department of Infectious Diseases, Huashan Hospital, Fudan University, Shanghai, China
| | - Xianhua Mao
- State Key Laboratory of Genetic Engineering, Human Phenome Institute, and School of Life Sciences, Fudan University, Shanghai, China.,Fudan University Taizhou Institute of Health Sciences, Taizhou, China
| | - Xuefu Wu
- Key Laboratory of Public Health Safety, Fudan University, Ministry of Education, Shanghai, China.,Department of Epidemiology, School of Public Health, Fudan University, Shanghai, China
| | - Mingshan Wu
- Key Laboratory of Public Health Safety, Fudan University, Ministry of Education, Shanghai, China.,Department of Epidemiology, School of Public Health, Fudan University, Shanghai, China
| | - Tingting Shi
- Key Laboratory of Public Health Safety, Fudan University, Ministry of Education, Shanghai, China
| | - Wei Jiang
- State Key Laboratory of Genetic Engineering, Human Phenome Institute, and School of Life Sciences, Fudan University, Shanghai, China.,Fudan University Taizhou Institute of Health Sciences, Taizhou, China
| | - Lina Mu
- Department of Epidemiology and Environmental Health, School of Public Health and Health Professions, University at Buffalo State University of New York, Buffalo, NY, USA
| | - Damien C Tully
- Department of Infectious Disease Epidemiology, London School of Hygiene & Tropical Medicine, London, UK
| | - Lei Xu
- Emergency Medicine Department, Affiliated Hospital of Xuzhou Medical University, Xuzhou, China
| | - Li Jin
- State Key Laboratory of Genetic Engineering, Human Phenome Institute, and School of Life Sciences, Fudan University, Shanghai, China.,Fudan University Taizhou Institute of Health Sciences, Taizhou, China
| | - Shusheng Li
- Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Xuejin Tao
- Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Tiejun Zhang
- Key Laboratory of Public Health Safety, Fudan University, Ministry of Education, Shanghai, China.,Department of Epidemiology, School of Public Health, Fudan University, Shanghai, China
| | - Xingdong Chen
- State Key Laboratory of Genetic Engineering, Human Phenome Institute, and School of Life Sciences, Fudan University, Shanghai, China.,Fudan University Taizhou Institute of Health Sciences, Taizhou, China
| |
Collapse
|
49
|
Yu K, Yuan T, Zhang S, Bao C. Hypergravity-Induced Accumulation: A New, Efficient, and Simple Strategy to Improve the Thermal Conductivity of Boron Nitride Filled Polymer Composites. Polymers (Basel) 2021; 13:459. [PMID: 33572667 PMCID: PMC7866976 DOI: 10.3390/polym13030459] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [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: 01/06/2021] [Revised: 01/15/2021] [Accepted: 01/20/2021] [Indexed: 02/01/2023] Open
Abstract
Thermal conductive polymer composites (filled type) consisting of thermal conductive fillers and a polymer matrix have been widely used in a range of areas. More than 10 strategies have been developed to improve the thermal conductivity of polymer composites. Here we report a new "hypergravity accumulation" strategy. Raw material mixtures of boron nitride/silicone rubber composites were treated in hypergravity fields (800-20,000 g, relative gravity acceleration) before heat-curing. A series of comparison studies were made. It was found that hypergravity treatments could efficiently improve the microstructures and thermal conductivity of the composites. When the hypergravity was about 20,000 g (relative gravity acceleration), the obtained spherical boron nitride/silicone rubber composites had highly compacted microstructures and high and isotropic thermal conductivity. The highest thermal conductivity reached 4.0 W/mK. Thermal interface application study showed that the composites could help to decrease the temperature on a light-emitting diode (LED) chip by 5 °C. The mechanism of the improved microstructure increased thermal conductivity, and the high viscosity problem in the preparation of boron nitride/silicone rubber composites, and the advantages and disadvantages of the hypergravity accumulation strategy, were discussed. Overall, this work has provided a new, efficient, and simple strategy to improve the thermal conductivity of boron nitride/silicone rubber and other polymer composites (filled type).
Collapse
Affiliation(s)
- Kangkang Yu
- School of Materials Science and Engineering, Tiangong University, 399 Binshui West Road, Tianjin 300387, China; (K.Y.); (T.Y.); (S.Z.)
| | - Tao Yuan
- School of Materials Science and Engineering, Tiangong University, 399 Binshui West Road, Tianjin 300387, China; (K.Y.); (T.Y.); (S.Z.)
| | - Songdi Zhang
- School of Materials Science and Engineering, Tiangong University, 399 Binshui West Road, Tianjin 300387, China; (K.Y.); (T.Y.); (S.Z.)
| | - Chenlu Bao
- School of Materials Science and Engineering, Tiangong University, 399 Binshui West Road, Tianjin 300387, China; (K.Y.); (T.Y.); (S.Z.)
- Tianjin HaiTe Thermal Management Technology Co., Ltd., 6 Huake 8 Road, Tianjin 300450, China
| |
Collapse
|
50
|
Zheng Y, Huang C, Lu L, Yu K, Zhao J, Chen M, Liu L, Sun Q, Lin Z, Zheng J, Chen J, Zhang J. STOML2 potentiates metastasis of hepatocellular carcinoma by promoting PINK1-mediated mitophagy and regulates sensitivity to lenvatinib. J Hematol Oncol 2021; 14:16. [PMID: 33446239 PMCID: PMC7807703 DOI: 10.1186/s13045-020-01029-3] [Citation(s) in RCA: 59] [Impact Index Per Article: 19.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2020] [Accepted: 12/25/2020] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND Dysregulation of both mitochondrial biogenesis and mitophagy is critical to sustain oncogenic signaling pathways. However, the mechanism of mitophagy in promoting hepatocellular carcinoma (HCC) progression remains poorly understood. In this study, we investigated the clinical significance and biological involvement of mitochondrial inner membrane protein STOML2 in HCC. METHODS STOML2 was identified by gene expression profiles of HCC tissues and was measured in tissue microarray and cell lines. Gain/loss-of-function experiment was applied to study the biological function of STOML2 in HCC. Flow cytometry, Western blotting, laser confocal microscopy, transmission electron microscopy, and co-immunoprecipitation were used to detect and analyze mitophagy. ChIP and luciferase reporter assay were conducted to evaluate the relationship between STOML2 and HIF-1α. The sensitivity to lenvatinib was assessed in HCC both in vitro and in vivo. RESULTS Increased expression of STOML2 was found in HCC compared with paired peritumoral tissues. It was more significant in HCC with metastasis and correlated with worse overall survival and higher probability of recurrence after hepatectomy. Upregulation of STOML2 accelerated HCC cells colony formation, migration and invasion. Mechanically, TCGA dataset-based analysis showed enrichment of autophagy-related pathways in STOML2 highly-expressed HCC. Next, STOML2 was demonstrated to interact and stabilize PINK1 under cellular stress, amplify PINK1-Parkin-mediated mitophagy and then promote HCC growth and metastasis. Most interestingly, HIF-1α was upregulated and transcriptionally increased STOML2 expression in HCC cells under the treatment of lenvatinib. Furthermore, higher sensitivity to lenvatinib was found in HCC cells when STOML2 was downregulated. Combination therapy with lenvatinib and mitophagy inhibitor hydroxychloroquine obtained best efficacy. CONCLUSIONS Our findings suggested that STOML2 could amplify mitophagy through interacting and stabilizing PINK1, which promote HCC metastasis and modulate the response of HCC to lenvatinib. Combinations of pharmacologic inhibitors that concurrently block both angiogenesis and mitophagy may serve as an effective treatment for HCC.
Collapse
Affiliation(s)
- Yahui Zheng
- Department of Infectious Diseases, Huashan Hospital, Fudan University, Shanghai, 200040, China
- Center of Liver Diseases, Huashan Hospital, Fudan University, Shanghai, 200040, China
| | - Chong Huang
- Department of Infectious Diseases, Huashan Hospital, Fudan University, Shanghai, 200040, China
- Center of Liver Diseases, Huashan Hospital, Fudan University, Shanghai, 200040, China
| | - Lu Lu
- Center of Liver Diseases, Huashan Hospital, Fudan University, Shanghai, 200040, China
- Department of General Surgery, Huashan Hospital, Fudan University, Shanghai, 200040, China
| | - Kangkang Yu
- Department of Infectious Diseases, Huashan Hospital, Fudan University, Shanghai, 200040, China
- Center of Liver Diseases, Huashan Hospital, Fudan University, Shanghai, 200040, China
| | - Jing Zhao
- Center of Liver Diseases, Huashan Hospital, Fudan University, Shanghai, 200040, China
- Department of General Surgery, Huashan Hospital, Fudan University, Shanghai, 200040, China
| | - Mingquan Chen
- Department of Infectious Diseases, Huashan Hospital, Fudan University, Shanghai, 200040, China
- Center of Liver Diseases, Huashan Hospital, Fudan University, Shanghai, 200040, China
| | - Lu Liu
- Department of Infectious Diseases, Huashan Hospital, Fudan University, Shanghai, 200040, China
- Center of Liver Diseases, Huashan Hospital, Fudan University, Shanghai, 200040, China
| | - Qingfeng Sun
- Department of Infectious Diseases, Ruian People's Hospital, Ruian, 325200, China
| | - Zhifei Lin
- Center of Liver Diseases, Huashan Hospital, Fudan University, Shanghai, 200040, China
- Department of General Surgery, Huashan Hospital, Fudan University, Shanghai, 200040, China
| | - Jianming Zheng
- Department of Infectious Diseases, Huashan Hospital, Fudan University, Shanghai, 200040, China
- Center of Liver Diseases, Huashan Hospital, Fudan University, Shanghai, 200040, China
| | - Jinhong Chen
- Center of Liver Diseases, Huashan Hospital, Fudan University, Shanghai, 200040, China.
- Department of General Surgery, Huashan Hospital, Fudan University, Shanghai, 200040, China.
| | - Jubo Zhang
- Department of Infectious Diseases, Huashan Hospital, Fudan University, Shanghai, 200040, China.
- Center of Liver Diseases, Huashan Hospital, Fudan University, Shanghai, 200040, China.
| |
Collapse
|