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Zhang ZY, Yang LT, Yue Q, Kang KJ, Li YJ, An HP, C G, Chang JP, Chen YH, Cheng JP, Dai WH, Deng Z, Fang CH, Geng XP, Gong H, Guo QJ, Guo T, Guo XY, He L, He SM, Hu JW, Huang HX, Huang TC, Jiang L, Karmakar S, Li HB, Li HY, Li JM, Li J, Li QY, Li RMJ, Li XQ, Li YL, Liang YF, Liao B, Lin FK, Lin ST, Liu JX, Liu SK, Liu YD, Liu Y, Liu YY, Ma H, Mao YC, Nie QY, Ning JH, Pan H, Qi NC, Ren J, Ruan XC, Singh MK, Sun TX, Tang CJ, Tian Y, Wang GF, Wang JZ, Wang L, Wang Q, Wang YF, Wang YX, Wong HT, Wu SY, Wu YC, Xing HY, Xu R, Xu Y, Xue T, Yan YL, Yi N, Yu CX, Yu HJ, Yue JF, Zeng M, Zeng Z, Zhang BT, Zhang FS, Zhang L, Zhang ZH, Zhao JZ, Zhao KK, Zhao MG, Zhou JF, Zhou ZY, Zhu JJ. Experimental Limits on Solar Reflected Dark Matter with a New Approach on Accelerated-Dark-Matter-Electron Analysis in Semiconductors. Phys Rev Lett 2024; 132:171001. [PMID: 38728703 DOI: 10.1103/physrevlett.132.171001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Revised: 01/22/2024] [Accepted: 03/19/2024] [Indexed: 05/12/2024]
Abstract
Recently a dark matter-electron (DM-electron) paradigm has drawn much attention. Models beyond the standard halo model describing DM accelerated by high energy celestial bodies are under intense examination as well. In this Letter, a velocity components analysis (VCA) method dedicated to swift analysis of accelerated DM-electron interactions via semiconductor detectors is proposed and the first HPGe detector-based accelerated DM-electron analysis is realized. Utilizing the method, the first germanium based constraint on sub-GeV solar reflected DM-electron interaction is presented with the 205.4 kg·day dataset from the CDEX-10 experiment. In the heavy mediator scenario, our result excels in the mass range of 5-15 keV/c^{2}, achieving a 3 orders of magnitude improvement comparing with previous semiconductor experiments. In the light mediator scenario, the strongest laboratory constraint for DM lighter than 0.1 MeV/c^{2} is presented. The result proves the feasibility and demonstrates the vast potential of the VCA technique in future accelerated DM-electron analyses with semiconductor detectors.
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Affiliation(s)
- Z Y Zhang
- Key Laboratory of Particle and Radiation Imaging (Ministry of Education) and Department of Engineering Physics, Tsinghua University, Beijing 100084
| | - L T Yang
- Key Laboratory of Particle and Radiation Imaging (Ministry of Education) and Department of Engineering Physics, Tsinghua University, Beijing 100084
| | - Q Yue
- Key Laboratory of Particle and Radiation Imaging (Ministry of Education) and Department of Engineering Physics, Tsinghua University, Beijing 100084
| | - K J Kang
- Key Laboratory of Particle and Radiation Imaging (Ministry of Education) and Department of Engineering Physics, Tsinghua University, Beijing 100084
| | - Y J Li
- Key Laboratory of Particle and Radiation Imaging (Ministry of Education) and Department of Engineering Physics, Tsinghua University, Beijing 100084
| | - H P An
- Key Laboratory of Particle and Radiation Imaging (Ministry of Education) and Department of Engineering Physics, Tsinghua University, Beijing 100084
- Department of Physics, Tsinghua University, Beijing 100084
| | - Greeshma C
- Institute of Physics, Academia Sinica, Taipei 11529
| | | | - Y H Chen
- YaLong River Hydropower Development Company, Chengdu 610051
| | - J P Cheng
- Key Laboratory of Particle and Radiation Imaging (Ministry of Education) and Department of Engineering Physics, Tsinghua University, Beijing 100084
- College of Nuclear Science and Technology, Beijing Normal University, Beijing 100875
| | - W H Dai
- Key Laboratory of Particle and Radiation Imaging (Ministry of Education) and Department of Engineering Physics, Tsinghua University, Beijing 100084
| | - Z Deng
- Key Laboratory of Particle and Radiation Imaging (Ministry of Education) and Department of Engineering Physics, Tsinghua University, Beijing 100084
| | - C H Fang
- College of Physics, Sichuan University, Chengdu 610065
| | - X P Geng
- Key Laboratory of Particle and Radiation Imaging (Ministry of Education) and Department of Engineering Physics, Tsinghua University, Beijing 100084
| | - H Gong
- Key Laboratory of Particle and Radiation Imaging (Ministry of Education) and Department of Engineering Physics, Tsinghua University, Beijing 100084
| | - Q J Guo
- School of Physics, Peking University, Beijing 100871
| | - T Guo
- Key Laboratory of Particle and Radiation Imaging (Ministry of Education) and Department of Engineering Physics, Tsinghua University, Beijing 100084
| | - X Y Guo
- YaLong River Hydropower Development Company, Chengdu 610051
| | - L He
- NUCTECH Company, Beijing 100084
| | - S M He
- YaLong River Hydropower Development Company, Chengdu 610051
| | - J W Hu
- Key Laboratory of Particle and Radiation Imaging (Ministry of Education) and Department of Engineering Physics, Tsinghua University, Beijing 100084
| | - H X Huang
- Department of Nuclear Physics, China Institute of Atomic Energy, Beijing 102413
| | - T C Huang
- Sino-French Institute of Nuclear and Technology, Sun Yat-sen University, Zhuhai 519082
| | - L Jiang
- Key Laboratory of Particle and Radiation Imaging (Ministry of Education) and Department of Engineering Physics, Tsinghua University, Beijing 100084
| | - S Karmakar
- Institute of Physics, Academia Sinica, Taipei 11529
| | - H B Li
- Institute of Physics, Academia Sinica, Taipei 11529
| | - H Y Li
- College of Physics, Sichuan University, Chengdu 610065
| | - J M Li
- Key Laboratory of Particle and Radiation Imaging (Ministry of Education) and Department of Engineering Physics, Tsinghua University, Beijing 100084
| | - J Li
- Key Laboratory of Particle and Radiation Imaging (Ministry of Education) and Department of Engineering Physics, Tsinghua University, Beijing 100084
| | - Q Y Li
- College of Physics, Sichuan University, Chengdu 610065
| | - R M J Li
- College of Physics, Sichuan University, Chengdu 610065
| | - X Q Li
- School of Physics, Nankai University, Tianjin 300071
| | - Y L Li
- Key Laboratory of Particle and Radiation Imaging (Ministry of Education) and Department of Engineering Physics, Tsinghua University, Beijing 100084
| | - Y F Liang
- Key Laboratory of Particle and Radiation Imaging (Ministry of Education) and Department of Engineering Physics, Tsinghua University, Beijing 100084
| | - B Liao
- College of Nuclear Science and Technology, Beijing Normal University, Beijing 100875
| | - F K Lin
- Institute of Physics, Academia Sinica, Taipei 11529
| | - S T Lin
- College of Physics, Sichuan University, Chengdu 610065
| | - J X Liu
- Key Laboratory of Particle and Radiation Imaging (Ministry of Education) and Department of Engineering Physics, Tsinghua University, Beijing 100084
| | - S K Liu
- College of Physics, Sichuan University, Chengdu 610065
| | - Y D Liu
- College of Nuclear Science and Technology, Beijing Normal University, Beijing 100875
| | - Y Liu
- College of Physics, Sichuan University, Chengdu 610065
| | - Y Y Liu
- College of Nuclear Science and Technology, Beijing Normal University, Beijing 100875
| | - H Ma
- Key Laboratory of Particle and Radiation Imaging (Ministry of Education) and Department of Engineering Physics, Tsinghua University, Beijing 100084
| | - Y C Mao
- School of Physics, Peking University, Beijing 100871
| | - Q Y Nie
- Key Laboratory of Particle and Radiation Imaging (Ministry of Education) and Department of Engineering Physics, Tsinghua University, Beijing 100084
| | - J H Ning
- YaLong River Hydropower Development Company, Chengdu 610051
| | - H Pan
- NUCTECH Company, Beijing 100084
| | - N C Qi
- YaLong River Hydropower Development Company, Chengdu 610051
| | - J Ren
- Department of Nuclear Physics, China Institute of Atomic Energy, Beijing 102413
| | - X C Ruan
- Department of Nuclear Physics, China Institute of Atomic Energy, Beijing 102413
| | - M K Singh
- Institute of Physics, Academia Sinica, Taipei 11529
- Department of Physics, Banaras Hindu University, Varanasi 221005
| | - T X Sun
- College of Nuclear Science and Technology, Beijing Normal University, Beijing 100875
| | - C J Tang
- College of Physics, Sichuan University, Chengdu 610065
| | - Y Tian
- Key Laboratory of Particle and Radiation Imaging (Ministry of Education) and Department of Engineering Physics, Tsinghua University, Beijing 100084
| | - G F Wang
- College of Nuclear Science and Technology, Beijing Normal University, Beijing 100875
| | - J Z Wang
- Key Laboratory of Particle and Radiation Imaging (Ministry of Education) and Department of Engineering Physics, Tsinghua University, Beijing 100084
| | - L Wang
- Department of Physics, Beijing Normal University, Beijing 100875
| | - Q Wang
- Key Laboratory of Particle and Radiation Imaging (Ministry of Education) and Department of Engineering Physics, Tsinghua University, Beijing 100084
- Department of Physics, Tsinghua University, Beijing 100084
| | - Y F Wang
- Key Laboratory of Particle and Radiation Imaging (Ministry of Education) and Department of Engineering Physics, Tsinghua University, Beijing 100084
| | - Y X Wang
- School of Physics, Peking University, Beijing 100871
| | - H T Wong
- Institute of Physics, Academia Sinica, Taipei 11529
| | - S Y Wu
- YaLong River Hydropower Development Company, Chengdu 610051
| | - Y C Wu
- Key Laboratory of Particle and Radiation Imaging (Ministry of Education) and Department of Engineering Physics, Tsinghua University, Beijing 100084
| | - H Y Xing
- College of Physics, Sichuan University, Chengdu 610065
| | - R Xu
- Key Laboratory of Particle and Radiation Imaging (Ministry of Education) and Department of Engineering Physics, Tsinghua University, Beijing 100084
| | - Y Xu
- School of Physics, Nankai University, Tianjin 300071
| | - T Xue
- Key Laboratory of Particle and Radiation Imaging (Ministry of Education) and Department of Engineering Physics, Tsinghua University, Beijing 100084
| | - Y L Yan
- College of Physics, Sichuan University, Chengdu 610065
| | - N Yi
- Key Laboratory of Particle and Radiation Imaging (Ministry of Education) and Department of Engineering Physics, Tsinghua University, Beijing 100084
| | - C X Yu
- School of Physics, Nankai University, Tianjin 300071
| | - H J Yu
- NUCTECH Company, Beijing 100084
| | - J F Yue
- YaLong River Hydropower Development Company, Chengdu 610051
| | - M Zeng
- Key Laboratory of Particle and Radiation Imaging (Ministry of Education) and Department of Engineering Physics, Tsinghua University, Beijing 100084
| | - Z Zeng
- Key Laboratory of Particle and Radiation Imaging (Ministry of Education) and Department of Engineering Physics, Tsinghua University, Beijing 100084
| | - B T Zhang
- Key Laboratory of Particle and Radiation Imaging (Ministry of Education) and Department of Engineering Physics, Tsinghua University, Beijing 100084
| | - F S Zhang
- College of Nuclear Science and Technology, Beijing Normal University, Beijing 100875
| | - L Zhang
- College of Physics, Sichuan University, Chengdu 610065
| | - Z H Zhang
- Key Laboratory of Particle and Radiation Imaging (Ministry of Education) and Department of Engineering Physics, Tsinghua University, Beijing 100084
| | - J Z Zhao
- Key Laboratory of Particle and Radiation Imaging (Ministry of Education) and Department of Engineering Physics, Tsinghua University, Beijing 100084
| | - K K Zhao
- College of Physics, Sichuan University, Chengdu 610065
| | - M G Zhao
- School of Physics, Nankai University, Tianjin 300071
| | - J F Zhou
- YaLong River Hydropower Development Company, Chengdu 610051
| | - Z Y Zhou
- Department of Nuclear Physics, China Institute of Atomic Energy, Beijing 102413
| | - J J Zhu
- College of Physics, Sichuan University, Chengdu 610065
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Zhang R, Wang D, Li JM. [Standardization of next-generation sequencing for detecting mutations associated with targeted therapy and immunotherapy based on dynamic pattern of expandable detection range]. Zhonghua Yi Xue Za Zhi 2024; 104:1211-1215. [PMID: 38487819 DOI: 10.3760/cma.j.cn112137-20240105-00032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 04/20/2024]
Abstract
Next-generation sequencing (NGS) has laid the foundation for precision oncology care. NGS technologynot only represents an innovation in the methodology but also brings about a revolution in the concept of detecting gene alterations for targeted therapy and immunotherapy of cancers. As basic biomedical research and drug development progress, the landscape of biomarkers associated with gene alterations continues to evolve. Thus, the standardization of NGS-based gene alterations detection should take into account the characteristics of NGS methods and the gene alteration biomarkers. To be specific, whether employed as in vitro diagnostic products or laboratory-developed tests, the detection range can be expanded in response to changes in the clinical evidence level of biomarkers during the process of assay development and clinical application. Such adjustment needs the analytical validation results for supplemented genes or mutant sites within a predefined detection system, which will maximally fulfill the evolving clinical demands in cancer diagnosis and treatment, simultaneously mitigate potential risks effectively. This article primarily discusses the standardization pathway for NGS testing of gene alterations in cancer by focusing on the characteristics of NGS methods, gene alteration biomarkers, and the current status of the standardization of NGS application.
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Affiliation(s)
- R Zhang
- National Center for Clinical Laboratories, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing Hospital/National Center of Gerontology, Beijing 100730, China
| | - D Wang
- National Center for Clinical Laboratories, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing Hospital/National Center of Gerontology, Beijing 100730, China
| | - J M Li
- National Center for Clinical Laboratories, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing Hospital/National Center of Gerontology, Beijing 100730, China
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Liang H, Wu KQ, Fan QW, Zheng W, Zhang H, Bai JW, Li JM, Chen JQ, Zhang C. [Application value of laparoscopic double stapler firings and double stapling technique combined with rectal eversion and total extra-abdominal resection in the sphincter-preserving resection of low rectal cancer]. Zhonghua Wei Chang Wai Ke Za Zhi 2024; 27:283-286. [PMID: 38532592 DOI: 10.3760/cma.j.cn441530-20230806-00034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Subscribe] [Scholar Register] [Indexed: 03/28/2024]
Abstract
Objectives: To investigate the application value of laparoscopic double stapler firings and double stapling technique combined with rectal eversion and total extra-abdominal resection (LDER) in the anal preservation treatment of low rectal cancer. Methods: Inclusion criteria: (1) age was 18-70; (2) the distance of the lower tumor edge from the anal verge was 4-5 cm; (3) primary tumor with a diameter ≤3 cm; (4) preoperative staging of T1~2N1~2M0; (5) "difficult pelvis", defined as ischial tuberosity diameter<10 cm or body mass index>25 kg/m2; (6) patients with strong intention for sphincter preservation; (7) no preoperative treatment (e.g., chemotherapy, radiotherapy, molecular targeted therapy, or immunotherapy); (8) no lateral lymph node enlargement; (9) no previous anorectal surgery; (10) patients with good basic condition who could tolerate surgery. Exclusion criteria: (1) previously suffered from malignant tumors of the digestive tract or currently suffering from malignant tumors out of the digestive tract; (2) patients with preoperative anal dysfunction (Wexner score ≥ 10), or fecal incontinence. The specific surgical steps are as follows: the distal end of the rectum was dissected to the level of the interspace between internal and external sphincters of anal canal. Five centimeters proximal to the tumor, the mesorectum was ligated, and a liner stapler was used to transect the rectum. The distal rectum with the tumor were then everted and extracted through the anus. The rectum was transected 0.5-1.0 cm distal to the tumor with a linear stapler. Full thickness suture was used to reinforce the stump of the rectum, which was then brought back into the pelvic cavity. Finally, an end-to-end anastomosis between the colon and the rectum was performed. A retrospective descriptive study was performed of the clinical and pathological data of 12 patients with T1-T2 stage low rectal cancer treated with LDER at Henan Provincial People's Hospital from January 2020 to December 2022. Results: All 12 patients successfully completed LDER with sphincter preservation, without conversion to open surgery or changes in surgical approach. The median surgical time was 272 (155-320) minutes, with a median bleeding volume of 100 (50-200) mL. No protective stoma was performed, and all patients received R0 resection. The average hospital stay was 9 (7-15) days. There were no postoperative anastomotic leakage or perioperative deaths. All 12 patients received postoperative follow-up, with a median follow-up of 12 months (6-36 months) and a Wexner score of 8 (5-14) at 6 months postoperatively. There was no tumor recurrence or metastasis during the follow-up period. Conclusions: LDER is safe and effective for the treatment of low rectal cancer.
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Affiliation(s)
- H Liang
- Department of Gastrointestinal Surgery, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, Zhengzhou 450006, China
| | - K Q Wu
- Department of Gastrointestinal Surgery, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, Zhengzhou 450006, China
| | - Q W Fan
- Department of Gastrointestinal Surgery, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, Zhengzhou 450006, China
| | - W Zheng
- Department of Gastrointestinal Surgery, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, Zhengzhou 450006, China
| | - H Zhang
- Department of Gastrointestinal Surgery, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, Zhengzhou 450006, China
| | - J W Bai
- Department of Gastrointestinal Surgery, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, Zhengzhou 450006, China
| | - J M Li
- Department of Gastrointestinal Surgery, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, Zhengzhou 450006, China
| | - J Q Chen
- Department of Medical Imaging, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, Zhengzhou 450006, China
| | - C Zhang
- Department of Gastrointestinal Surgery, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, Zhengzhou 450006, China
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He YJ, Zhou ZL, Qin QY, Huang BJ, Huang XY, Li JM, Zhu MM, Yao B, Wang DJ, Qiu JG, Wang H, Ma TH. [Pelvic exenteration for late complications of radiation-induced pelvic injury: a preliminary study]. Zhonghua Wei Chang Wai Ke Za Zhi 2023; 26:940-946. [PMID: 37849264 DOI: 10.3760/cma.j.cn441530-20230816-00053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 10/19/2023]
Abstract
Objective: To investigate the safety and efficacy of total pelvic exenteration (TPE) for treating late complications of radiation-induced pelvic injury. Methods: This was a descriptive case series study. The inclusion criteria were as follows: (1) confirmed radiation-induced pelvic injury after radiotherapy for pelvic malignancies; (2) late complications of radiation-induced pelvic injury, such as bleeding, perforation, fistula, and obstruction, involving multiple pelvic organs; (3) TPE recommended by a multidisciplinary team; (4) patient in good preoperative condition and considered fit enough to tolerate TPE; and (5) patient extremely willing to undergo the procedure and accept the associated risks. The exclusion criteria were as follows: (1) preoperative or intraoperative diagnosis of tumor recurrence or metastasis; (2) had only undergone diversion or bypass surgery after laparoscopic exploration; and (3) incomplete medical records. Clinical and follow-up data of patients who had undergone TPE for late complications of radiation-induced pelvic injury between March 2020 and September 2022 at the Sixth Affiliated Hospital of Sun Yat-sen University were analyzed. Perioperative recovery, postoperative complications, perioperative deaths, and quality of life 1 year postoperatively were recorded. Results: The study cohort comprised 14 women, nine of whom had recto-vagino-vesical fistulas, two vesicovaginal fistulas, one ileo-vesical fistula and rectal necrosis, one ileo-vesical and rectovaginal fistulas, and one rectal ulcer and bilateral ureteral stenosis. The mean duration of surgery was 592.1±167.6 minutes and the median blood loss 550 (100-6000) mL. Ten patients underwent intestinal reconstruction, and four the Hartmann procedure. Ten patients underwent urinary reconstruction using Bricker's procedure and 7 underwent pelvic floor reconstruction. The mean postoperative hospital stay was 23.6±14.9 days. Seven patients (7/14) had serious postoperative complications (Clavien-Dindo IIIa to IVb), including surgical site infections in eight, abdominopelvic abscesses in five, pulmonary infections in five, intestinal obstruction in four, and urinary leakage in two. Empty pelvis syndrome (EPS) was diagnosed in five patients, none of whom had undergone pelvic floor reconstruction. Five of the seven patients who had not undergone pelvic floor reconstruction developed EPS, compared with none of those who had undergone pelvic floor reconstruction. One patient with EPS underwent reoperation because of a pelvic abscess, pelvic hemorrhage, and intestinal obstruction. There were no perioperative deaths. During 18.9±10.1 months of follow-up, three patients died, two of renal failure, which was a preoperative comorbidity, and one of COVID-19. The remaining patients had gradual and significant relief of symptoms during follow-up. QLQ-C30 assessment of postoperative quality of life showed gradual improvement in all functional domains and general health at 1, 3, and 6 months postoperatively (all P<0.05). Conclusions: TPE is a feasible procedure for treating late complications of radiation-induced pelvic injury combined with complex pelvic fistulas. TPE is effective in alleviating symptoms and improving quality of life. However, the indications for this procedure should be strictly controlled and the surgery carried out only by experienced surgeons.
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Affiliation(s)
- Y J He
- Department of General Surgery (Colorectal Surgery), The Sixth Affiliated Hospital, Sun Yat-sen University; Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, The Sixth Affiliated Hospital, Sun Yat-sen University; Biomedical Innovation Center, The Sixth Affiliated Hospital,Sun Yat-sen University, Guangzhou 510655, China
| | - Z L Zhou
- Department of General Surgery (Colorectal Surgery), The Sixth Affiliated Hospital, Sun Yat-sen University; Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, The Sixth Affiliated Hospital, Sun Yat-sen University; Biomedical Innovation Center, The Sixth Affiliated Hospital,Sun Yat-sen University, Guangzhou 510655, China
| | - Q Y Qin
- Department of General Surgery (Colorectal Surgery), The Sixth Affiliated Hospital, Sun Yat-sen University; Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, The Sixth Affiliated Hospital, Sun Yat-sen University; Biomedical Innovation Center, The Sixth Affiliated Hospital,Sun Yat-sen University, Guangzhou 510655, China
| | - B J Huang
- Department of General Surgery (Colorectal Surgery), The Sixth Affiliated Hospital, Sun Yat-sen University; Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, The Sixth Affiliated Hospital, Sun Yat-sen University; Biomedical Innovation Center, The Sixth Affiliated Hospital,Sun Yat-sen University, Guangzhou 510655, China
| | - X Y Huang
- Department of Pharmacy, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou 510655, China
| | - J M Li
- Department of General Surgery (Colorectal Surgery), The Sixth Affiliated Hospital, Sun Yat-sen University; Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, The Sixth Affiliated Hospital, Sun Yat-sen University; Biomedical Innovation Center, The Sixth Affiliated Hospital,Sun Yat-sen University, Guangzhou 510655, China
| | - M M Zhu
- Department of General Surgery (Colorectal Surgery), The Sixth Affiliated Hospital, Sun Yat-sen University; Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, The Sixth Affiliated Hospital, Sun Yat-sen University; Biomedical Innovation Center, The Sixth Affiliated Hospital,Sun Yat-sen University, Guangzhou 510655, China
| | - B Yao
- Department of Urology, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou 510655, China
| | - D J Wang
- Department of Urology, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou 510655, China
| | - J G Qiu
- Department of Urology, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou 510655, China
| | - H Wang
- Department of General Surgery (Colorectal Surgery), The Sixth Affiliated Hospital, Sun Yat-sen University; Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, The Sixth Affiliated Hospital, Sun Yat-sen University; Biomedical Innovation Center, The Sixth Affiliated Hospital,Sun Yat-sen University, Guangzhou 510655, China
| | - T H Ma
- Department of General Surgery (Colorectal Surgery), The Sixth Affiliated Hospital, Sun Yat-sen University; Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, The Sixth Affiliated Hospital, Sun Yat-sen University; Biomedical Innovation Center, The Sixth Affiliated Hospital,Sun Yat-sen University, Guangzhou 510655, China Department of Clinical Nutrition and Microecology, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou 510655, China
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Li JM, Zhou CJ. [Clinicopathological features and research advances of fundic gland type neoplasms]. Zhonghua Bing Li Xue Za Zhi 2023; 52:970-975. [PMID: 37670636 DOI: 10.3760/cma.j.cn112151-20230322-00217] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 09/07/2023]
Affiliation(s)
- J M Li
- Department of Pathology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan 250021, China
| | - C J Zhou
- Department of Pathology, the Second Affiliated Hospital of Shandong University, Jinan 250033, China
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Yang H, Cao J, Li JM, Li C, Zhou WW, Luo JW. Exploration of the molecular mechanism of tea polyphenols against pulmonary hypertension by integrative approach of network pharmacology, molecular docking, and experimental verification. Mol Divers 2023:10.1007/s11030-023-10700-z. [PMID: 37486473 DOI: 10.1007/s11030-023-10700-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Accepted: 07/10/2023] [Indexed: 07/25/2023]
Abstract
Pulmonary hypertension, a common complication of chronic obstructive pulmonary disease, is a major global health concern. Green tea is a popular beverage that is consumed all over the world. Green tea's active ingredients are epicatechin derivatives, also known as "polyphenols," which have anti-carcinogenic, anti-inflammatory, and antioxidant properties. This study aimed to explore the possible mechanism of green tea polyphenols in the treatment of pulmonary hypertension using network pharmacology, molecular docking, and experimental verification. A total of 316 potential green tea polyphenols-related targets were obtained from the PharmMapper, SwissTargetPrediction, and TargetNet databases. A total of 410 pulmonary hypertension-related targets were predicted by the CTD, DisGeNET, pharmkb, and GeneCards databases. Green tea polyphenols-related targets were hit by the 49 targets associated with pulmonary hypertension. AKT1 and HIF1-α were identified through the FDA drugs-target network and PPI network combined with GO functional annotation and KEGG pathway enrichment. Molecular docking results showed that green tea polyphenols had strong binding abilities to AKT1 and HIF1-α. In vitro experiments showed that green tea polyphenols inhibited the proliferation and migration of hypoxia stimulated pulmonary artery smooth muscle cells by decreasing AKT1 phosphorylation and downregulating HIF1α expression. Collectively, green tea polyphenols are promising phytochemicals against pulmonary hypertension.
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Affiliation(s)
- Huan Yang
- Department of Pulmonary and Critical Care Medicine, Hunan Provincial People's Hospital, The First Affiliated Hospital of Hunan Normal University, Changsha, 410005, Hunan, China
| | - Jun Cao
- Department of Pulmonary and Critical Care Medicine, Hunan Provincial People's Hospital, The First Affiliated Hospital of Hunan Normal University, Changsha, 410005, Hunan, China
| | - Jian-Min Li
- Department of Pulmonary and Critical Care Medicine, Hunan Provincial People's Hospital, The First Affiliated Hospital of Hunan Normal University, Changsha, 410005, Hunan, China
| | - Cheng Li
- Department of Pulmonary and Critical Care Medicine, Hunan Provincial People's Hospital, The First Affiliated Hospital of Hunan Normal University, Changsha, 410005, Hunan, China
| | - Wen-Wu Zhou
- Department of Cardiovascular Surgery, Hunan Provincial People's Hospital, The First Affiliated Hospital of Hunan Normal University, Changsha, 410005, Hunan, China
| | - Jin-Wen Luo
- Department of Cardio-Thoracic Surgery, Hunan Children's Hospital, Changsha, 410007, Hunan, China.
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Lu C, Jiang N, Shi L, Li JM. [Primary Paget's disease with infiltrating adenocarcinoma of esophagus: report of case]. Zhonghua Bing Li Xue Za Zhi 2023; 52:736-738. [PMID: 37408410 DOI: 10.3760/cma.j.cn112151-20221023-00880] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 07/07/2023]
Affiliation(s)
- C Lu
- Department of Pathology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan 250021, China
| | - N Jiang
- Department of Pathology, Shandong Second Provincial General Hospital, Jinan 250022, China
| | - L Shi
- Department of Gastroenterology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan 250021, China
| | - J M Li
- Department of Pathology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan 250021, China
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8
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Liu L, Li JM, Zhang MD, Wang HJ, Li Y, Zhang ZB, Zhao ZF, Xi Y, Huang YY, Xu J, Zhang B, Chen J, Cui CX. Cd(II)/Mn(II)/Co(II)/Ni(II)/Zn(II) Coordination Polymers Built from Dicarboxylic Acid/Tetracarboxylic Acid Ligands: Their Structural Diversity and Fluorescence Properties. Polymers (Basel) 2023; 15:polym15071803. [PMID: 37050417 PMCID: PMC10098927 DOI: 10.3390/polym15071803] [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: 01/29/2023] [Revised: 03/29/2023] [Accepted: 03/30/2023] [Indexed: 04/14/2023] Open
Abstract
Six Cd(II)/Mn(II)/Co(II)/Ni(II)/Zn(II) coordination complexes are formulated as [Cd2(X2-)2(μ3-O)2/3]n (1), [Mn2(X2-)2(μ3-O)2/3]n (2), {[Co1.5(Y4-)0.5(4,4'-bpy)1.5(OH-)]·2H2O}n (3), {[Ni(X2-)(4,4'-bpy)(H2O)2]·4H2O}n (4), [Zn(m-bdc2-)(bebiyh)]n (5), and [Cd(5-tbia2-)(bebiyh)]n (6) (H2X = 3,3'-(2,3,5,6-tetramethyl-1,4-phenylene) dipropionic acid. H4Y = 2,2'-(2,3,5,6-tetramethyl-1,4-phenylene)bis(methylene) dimalonic acid, bebiyh = 1,6-bis(2-ethyl-1H-benzo[d]imidazol-1-yl)hexane, m-H2bdc = 1,3-benzenedicarboxylic acid, and 5-H2tbia = 5-(tert-butyl)isophthalic acid) were obtained by hydrothermal reactions and structurally characterized. Complexes 1 and 2 have a 6-connected 3D architecture and with several point symbols of (36·46·53). Complex 3 features a 5-connected 3D net structure with a point symbol of (5·69). Complex 4 possesses a 4-connected 2D net with a vertex symbol of (44·62). Complex 5 is a 3-connected 2D network with a point symbol of (63). Complex 6 is a (3,3)-connected 2D network with a point symbol of (63)2. In addition, complexes 1 and 4 present good photoluminescence behaviors. The electronic structures of 1 and 4 were investigated with the density functional theory (DFT) method to understand the photoluminescence behaviors.
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Affiliation(s)
- Lu Liu
- School of Chemistry and Chemical Engineering, Henan Institute of Science and Technology, Xinxiang 453003, China
| | - Jian-Min Li
- School of Resources and Environment, Henan Institute of Science and Technology, Xinxiang 453003, China
| | - Meng-Di Zhang
- School of Chemistry and Chemical Engineering, Henan Institute of Science and Technology, Xinxiang 453003, China
| | - Hui-Jie Wang
- School of Chemistry and Chemical Engineering, Henan Institute of Science and Technology, Xinxiang 453003, China
| | - Ying Li
- School of Chemistry and Chemical Engineering, Henan Institute of Science and Technology, Xinxiang 453003, China
| | - Zhen-Bei Zhang
- School of Chemistry and Chemical Engineering, Henan Institute of Science and Technology, Xinxiang 453003, China
| | - Zi-Fang Zhao
- School of Chemistry and Chemical Engineering, Henan Institute of Science and Technology, Xinxiang 453003, China
| | - Yu Xi
- School of Chemistry and Chemical Engineering, Henan Institute of Science and Technology, Xinxiang 453003, China
| | - Yuan-Yuan Huang
- School of Chemistry and Chemical Engineering, Henan Institute of Science and Technology, Xinxiang 453003, China
| | - Jie Xu
- School of Chemistry and Chemical Engineering, Henan Institute of Science and Technology, Xinxiang 453003, China
| | - Bo Zhang
- School of Chemistry and Chemical Engineering, Henan Institute of Science and Technology, Xinxiang 453003, China
| | - Jun Chen
- School of Chemistry and Chemical Engineering, Henan Institute of Science and Technology, Xinxiang 453003, China
| | - Cheng-Xing Cui
- School of Chemistry and Chemical Engineering, Henan Institute of Science and Technology, Xinxiang 453003, China
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9
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Li YY, Zheng TL, Xiao SY, Wang P, Yang WJ, Jiang LL, Chen LL, Sha JC, Jin Y, Chen SD, Byrne CD, Targher G, Li JM, Zheng MH. Hepatocytic ballooning in non-alcoholic steatohepatitis: Dilemmas and future directions. Liver Int 2023; 43:1170-1182. [PMID: 37017559 DOI: 10.1111/liv.15571] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Revised: 03/14/2023] [Accepted: 03/18/2023] [Indexed: 04/06/2023]
Abstract
Hepatocytic ballooning is a key histological feature in the diagnosis of non-alcoholic steatohepatitis (NASH) and is an essential component of the two most widely used histological scoring systems for diagnosing and staging non-alcoholic fatty liver disease (NAFLD) [namely, the NAFLD activity score (NAS), and the steatosis, activity and fibrosis (SAF) scoring system]. As a result of the increasing incidence of NASH globally, the diagnostic challenges of hepatocytic ballooning are unprecedented. Despite the clear pathological concept of hepatocytic ballooning, there are still challenges in assessing hepatocytic ballooning in 'real life' situations. Hepatocytic ballooning can be confused with cellular oedema and microvesicular steatosis. Significant inter-observer variability does exist in assessing the presence and severity of hepatocytic ballooning. In this review article, we describe the underlying mechanisms associated with hepatocytic ballooning. Specifically, we discuss the increased endoplasmic reticulum stress and the unfolded protein response, as well as the rearrangement of the intermediate filament cytoskeleton, the appearance of Mallory-Denk bodies and activation of the sonic Hedgehog pathway. We also discuss the use of artificial intelligence in the detection and interpretation of hepatocytic ballooning, which may provide new possibilities for future diagnosis and treatment.
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Affiliation(s)
- Yang-Yang Li
- Department of Pathology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Tian-Lei Zheng
- Artificial Intelligence Unit, Department of Medical Equipment Management, Affiliated Hospital of Xuzhou Medical University, Xuzhou, China
- School of Information and Control Engineering, China University of Mining and Technology, Xuzhou, China
| | - Shu-Yuan Xiao
- Department of Pathology, Shanghai Jiahui International Hospital, Shanghai, China
| | - Peng Wang
- Department of Pathology, Beijing Ditan Hospital, Capital Medical University, Beijing, China
| | - Wen-Jun Yang
- Department of Pathology, The Affiliated Hospital of Hangzhou Normal University, Hangzhou, China
| | - Li-Lin Jiang
- Department of Pathology, Wuxi Fifth People's Hospital, Wuxi, China
| | - Li-Li Chen
- MAFLD Research Center, Department of Hepatology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Jun-Cheng Sha
- Department of Interventional Radiology, Affiliated Hospital of Xuzhou Medical University, Xuzhou, China
| | - Yi Jin
- Department of Pathology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Sui-Dan Chen
- Department of Pathology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Christopher D Byrne
- Southampton National Institute for Health Research Biomedical Research Centre, University Hospital Southampton, and University of Southampton, Southampton General Hospital, Southampton, UK
| | - Giovanni Targher
- Section of Endocrinology, Diabetes and Metabolism, Department of Medicine, University of Verona, Verona, Italy
| | - Jian-Min Li
- Department of Pathology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Ming-Hua Zheng
- MAFLD Research Center, Department of Hepatology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
- Institute of Hepatology, Wenzhou Medical University, Wenzhou, China
- Key Laboratory of Diagnosis and Treatment for the Development of Chronic Liver Disease in Zhejiang Province, Wenzhou, China
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10
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Sun HP, You JH, Chen QS, Wang J, Li JM. [Maintenance of efficacy and its predictors after discontinuation of eltrombopag in adults with primary immune thrombocytopenia]. Zhonghua Xue Ye Xue Za Zhi 2023; 44:32-37. [PMID: 36987720 PMCID: PMC10067367 DOI: 10.3760/cma.j.issn.0253-2727.2023.01.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Subscribe] [Scholar Register] [Indexed: 03/30/2023]
Abstract
Objective: To determine the efficacy of eltrombopag for primary immune thrombocytopenia (ITP) in adults and the predictive factors for treatment-free response (TFR) . Methods: Clinical data of adults with ITP who received eltrombopag from June 14, 2013 to May 31, 2021 in the Hematology Department of Ruijin Hospital affiliated with Shanghai Jiao Tong University Medical College were retrospectively analyzed. The initial dose of eltrombopag was 25 mg/d, and the maximum dose was 75 mg/d; the dose was adjusted to maintain the platelet count to within 50-150×10(9)/L. Treatment was discontinued according either to the protocol, on the patient's wishes or doctor's judgment (prescription medication), or based on clinical trials. The efficacy of eltrombopag and factors for TFR among patients who achieved complete response and those who discontinued treatment were analyzed. Results: Overall, 106 patients with ITP (33 men and 73 women) were included in the study. The median age of patients was 50 (18-89) years. There were 2, 10, and 94 cases of newly diagnosed, persistent, and chronic ITP, respectively. The complete response rate was 44.3% (47/106), the response rate was 34.0% (36/106), and the overall response rate was 78.3% (83/106). Meanwhile, 83 patients who responded to treatment discontinued eltrombopag; of these, 81 patients were evaluated. Additionally, 17 patients (21.0%) achieved TFR. The median follow-up duration of patients who achieved TFR was 126 (30-170) weeks. The recurrence rate was 17.6% (3/17), and the relapse-free survival rate was 76.5%. The results of univariate analysis revealed that non-recurrence after discontinuation of other treatments for ITP (P=0.001), and platelet count and eltrombopag dose of ≥100×10(9)/L (P=0.007) and ≤25 mg/d (P=0.031), respectively, upon discontinuation of eltrombopag were predictors of TFR; these effects were attributed to prolonged effective duration of eltrombopag. Multivariate analysis showed that there was a correlation between non-recurrence and prolonged effective duration after discontinuation of other treatments for ITP (P=0.002) . Conclusion: Eltrombopag is effective for patients with ITP as it can result in TFR. Predictors for TFR include non-recurrence after discontinuation of concomitant ITP treatment, and platelet count and eltrombopag dose of ≥100 × 10(9)/L and ≤25 mg/d upon discontinuation of treatment, respectively.
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Affiliation(s)
- H P Sun
- Department of Hematology, Institute of Hematology, Shanghai Jiao Tong University School of Medicine, Shanghai Rui Jin Hospital, Shanghai 200025, China
| | - J H You
- Department of Hematology, Institute of Hematology, Shanghai Jiao Tong University School of Medicine, Shanghai Rui Jin Hospital, Shanghai 200025, China
| | - Q S Chen
- Department of Hematology, Institute of Hematology, Shanghai Jiao Tong University School of Medicine, Shanghai Rui Jin Hospital, Shanghai 200025, China
| | - J Wang
- Department of Hematology, Institute of Hematology, Shanghai Jiao Tong University School of Medicine, Shanghai Rui Jin Hospital, Shanghai 200025, China
| | - J M Li
- Department of Hematology, Institute of Hematology, Shanghai Jiao Tong University School of Medicine, Shanghai Rui Jin Hospital, Shanghai 200025, China
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11
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Peng ZP, Li JM, Ding XF, Wang X. [Changes of thrombocytes and gut microbiota in a patient with sitosterolemia]. Zhonghua Nei Ke Za Zhi 2022; 61:1360-1362. [PMID: 36456518 DOI: 10.3760/cma.j.cn112138-20211215-00886] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Affiliation(s)
- Z P Peng
- Department of Clinical Laboratory, Ruijin Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai 200025, China
| | - J M Li
- Department of Blood Transfusion, Ruijin Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai 200025, China
| | - X F Ding
- Department of Clinical Laboratory, Ruijin Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai 200025, China
| | - Xuefeng Wang
- Department of Clinical Laboratory, Ruijin Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai 200025, China
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12
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Chu HX, Lin WH, Li JM. [Diagnosis of hypertrophic cardiomyopathy with microvascular dysfunction by cadmium-zinc-telluride-based myocardial perfusion SPECT:a case report]. Zhonghua Xin Xue Guan Bing Za Zhi 2022; 50:1108-1111. [PMID: 36418281 DOI: 10.3760/cma.j.cn112148-20220916-00720] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Affiliation(s)
- H X Chu
- Department of Nuclear Medicine,TEDA International Cardiovascular Hospital, Tianjin 300457, China
| | - W H Lin
- Department of Cardiology,TEDA International Cardiovascular Hospital, Tianjin 300457, China
| | - J M Li
- Department of Nuclear Medicine,TEDA International Cardiovascular Hospital, Tianjin 300457, China
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13
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Zhang ZY, Yang LT, Yue Q, Kang KJ, Li YJ, Agartioglu M, An HP, Chang JP, Chen YH, Cheng JP, Dai WH, Deng Z, Fang CH, Geng XP, Gong H, Guo QJ, Guo XY, He L, He SM, Hu JW, Huang HX, Huang TC, Jia HT, Jiang X, Li HB, Li JM, Li J, Li QY, Li RMJ, Li XQ, Li YL, Liang YF, Liao B, Lin FK, Lin ST, Liu SK, Liu YD, Liu Y, Liu YY, Liu ZZ, Ma H, Mao YC, Nie QY, Ning JH, Pan H, Qi NC, Ren J, Ruan XC, Saraswat K, Sharma V, She Z, Singh MK, Sun TX, Tang CJ, Tang WY, Tian Y, Wang GF, Wang L, Wang Q, Wang Y, Wang YX, Wong HT, Wu SY, Wu YC, Xing HY, Xu R, Xu Y, Xue T, Yan YL, Yeh CH, Yi N, Yu CX, Yu HJ, Yue JF, Zeng M, Zeng Z, Zhang BT, Zhang FS, Zhang L, Zhang ZH, Zhao KK, Zhao MG, Zhou JF, Zhou ZY, Zhu JJ. Constraints on Sub-GeV Dark Matter-Electron Scattering from the CDEX-10 Experiment. Phys Rev Lett 2022; 129:221301. [PMID: 36493436 DOI: 10.1103/physrevlett.129.221301] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/10/2022] [Revised: 08/25/2022] [Accepted: 10/20/2022] [Indexed: 06/17/2023]
Abstract
We present improved germanium-based constraints on sub-GeV dark matter via dark matter-electron (χ-e) scattering using the 205.4 kg·day dataset from the CDEX-10 experiment. Using a novel calculation technique, we attain predicted χ-e scattering spectra observable in high-purity germanium detectors. In the heavy mediator scenario, our results achieve 3 orders of magnitude of improvement for m_{χ} larger than 80 MeV/c^{2} compared to previous germanium-based χ-e results. We also present the most stringent χ-e cross-section limit to date among experiments using solid-state detectors for m_{χ} larger than 90 MeV/c^{2} with heavy mediators and m_{χ} larger than 100 MeV/c^{2} with electric dipole coupling. The result proves the feasibility and demonstrates the vast potential of a new χ-e detection method with high-purity germanium detectors in ultralow radioactive background.
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Affiliation(s)
- Z Y Zhang
- Key Laboratory of Particle and Radiation Imaging (Ministry of Education) and Department of Engineering Physics, Tsinghua University, Beijing 100084
| | - L T Yang
- Key Laboratory of Particle and Radiation Imaging (Ministry of Education) and Department of Engineering Physics, Tsinghua University, Beijing 100084
| | - Q Yue
- Key Laboratory of Particle and Radiation Imaging (Ministry of Education) and Department of Engineering Physics, Tsinghua University, Beijing 100084
| | - K J Kang
- Key Laboratory of Particle and Radiation Imaging (Ministry of Education) and Department of Engineering Physics, Tsinghua University, Beijing 100084
| | - Y J Li
- Key Laboratory of Particle and Radiation Imaging (Ministry of Education) and Department of Engineering Physics, Tsinghua University, Beijing 100084
| | - M Agartioglu
- Institute of Physics, Academia Sinica, Taipei 11529
| | - H P An
- Key Laboratory of Particle and Radiation Imaging (Ministry of Education) and Department of Engineering Physics, Tsinghua University, Beijing 100084
- Department of Physics, Tsinghua University, Beijing 100084
| | | | - Y H Chen
- YaLong River Hydropower Development Company, Chengdu 610051
| | - J P Cheng
- Key Laboratory of Particle and Radiation Imaging (Ministry of Education) and Department of Engineering Physics, Tsinghua University, Beijing 100084
- College of Nuclear Science and Technology, Beijing Normal University, Beijing 100875
| | - W H Dai
- Key Laboratory of Particle and Radiation Imaging (Ministry of Education) and Department of Engineering Physics, Tsinghua University, Beijing 100084
| | - Z Deng
- Key Laboratory of Particle and Radiation Imaging (Ministry of Education) and Department of Engineering Physics, Tsinghua University, Beijing 100084
| | - C H Fang
- College of Physics, Sichuan University, Chengdu 610065
| | - X P Geng
- Key Laboratory of Particle and Radiation Imaging (Ministry of Education) and Department of Engineering Physics, Tsinghua University, Beijing 100084
| | - H Gong
- Key Laboratory of Particle and Radiation Imaging (Ministry of Education) and Department of Engineering Physics, Tsinghua University, Beijing 100084
| | - Q J Guo
- School of Physics, Peking University, Beijing 100871
| | - X Y Guo
- YaLong River Hydropower Development Company, Chengdu 610051
| | - L He
- NUCTECH Company, Beijing 100084
| | - S M He
- YaLong River Hydropower Development Company, Chengdu 610051
| | - J W Hu
- Key Laboratory of Particle and Radiation Imaging (Ministry of Education) and Department of Engineering Physics, Tsinghua University, Beijing 100084
| | - H X Huang
- Department of Nuclear Physics, China Institute of Atomic Energy, Beijing 102413
| | - T C Huang
- Sino-French Institute of Nuclear and Technology, Sun Yat-sen University, Zhuhai 519082
| | - H T Jia
- College of Physics, Sichuan University, Chengdu 610065
| | - X Jiang
- College of Physics, Sichuan University, Chengdu 610065
| | - H B Li
- Institute of Physics, Academia Sinica, Taipei 11529
| | - J M Li
- Key Laboratory of Particle and Radiation Imaging (Ministry of Education) and Department of Engineering Physics, Tsinghua University, Beijing 100084
| | - J Li
- Key Laboratory of Particle and Radiation Imaging (Ministry of Education) and Department of Engineering Physics, Tsinghua University, Beijing 100084
| | - Q Y Li
- College of Physics, Sichuan University, Chengdu 610065
| | - R M J Li
- College of Physics, Sichuan University, Chengdu 610065
| | - X Q Li
- School of Physics, Nankai University, Tianjin 300071
| | - Y L Li
- Key Laboratory of Particle and Radiation Imaging (Ministry of Education) and Department of Engineering Physics, Tsinghua University, Beijing 100084
| | - Y F Liang
- Key Laboratory of Particle and Radiation Imaging (Ministry of Education) and Department of Engineering Physics, Tsinghua University, Beijing 100084
| | - B Liao
- College of Nuclear Science and Technology, Beijing Normal University, Beijing 100875
| | - F K Lin
- Institute of Physics, Academia Sinica, Taipei 11529
| | - S T Lin
- College of Physics, Sichuan University, Chengdu 610065
| | - S K Liu
- College of Physics, Sichuan University, Chengdu 610065
| | - Y D Liu
- College of Nuclear Science and Technology, Beijing Normal University, Beijing 100875
| | - Y Liu
- College of Physics, Sichuan University, Chengdu 610065
| | - Y Y Liu
- College of Nuclear Science and Technology, Beijing Normal University, Beijing 100875
| | - Z Z Liu
- Key Laboratory of Particle and Radiation Imaging (Ministry of Education) and Department of Engineering Physics, Tsinghua University, Beijing 100084
| | - H Ma
- Key Laboratory of Particle and Radiation Imaging (Ministry of Education) and Department of Engineering Physics, Tsinghua University, Beijing 100084
| | - Y C Mao
- School of Physics, Peking University, Beijing 100871
| | - Q Y Nie
- Key Laboratory of Particle and Radiation Imaging (Ministry of Education) and Department of Engineering Physics, Tsinghua University, Beijing 100084
| | - J H Ning
- YaLong River Hydropower Development Company, Chengdu 610051
| | - H Pan
- NUCTECH Company, Beijing 100084
| | - N C Qi
- YaLong River Hydropower Development Company, Chengdu 610051
| | - J Ren
- Department of Nuclear Physics, China Institute of Atomic Energy, Beijing 102413
| | - X C Ruan
- Department of Nuclear Physics, China Institute of Atomic Energy, Beijing 102413
| | - K Saraswat
- Institute of Physics, Academia Sinica, Taipei 11529
| | - V Sharma
- Institute of Physics, Academia Sinica, Taipei 11529
- Department of Physics, Banaras Hindu University, Varanasi 221005, India
| | - Z She
- Key Laboratory of Particle and Radiation Imaging (Ministry of Education) and Department of Engineering Physics, Tsinghua University, Beijing 100084
| | - M K Singh
- Institute of Physics, Academia Sinica, Taipei 11529
- Department of Physics, Banaras Hindu University, Varanasi 221005, India
| | - T X Sun
- College of Nuclear Science and Technology, Beijing Normal University, Beijing 100875
| | - C J Tang
- College of Physics, Sichuan University, Chengdu 610065
| | - W Y Tang
- Key Laboratory of Particle and Radiation Imaging (Ministry of Education) and Department of Engineering Physics, Tsinghua University, Beijing 100084
| | - Y Tian
- Key Laboratory of Particle and Radiation Imaging (Ministry of Education) and Department of Engineering Physics, Tsinghua University, Beijing 100084
| | - G F Wang
- College of Nuclear Science and Technology, Beijing Normal University, Beijing 100875
| | - L Wang
- Department of Physics, Beijing Normal University, Beijing 100875
| | - Q Wang
- Key Laboratory of Particle and Radiation Imaging (Ministry of Education) and Department of Engineering Physics, Tsinghua University, Beijing 100084
- Department of Physics, Tsinghua University, Beijing 100084
| | - Y Wang
- Key Laboratory of Particle and Radiation Imaging (Ministry of Education) and Department of Engineering Physics, Tsinghua University, Beijing 100084
- Department of Physics, Tsinghua University, Beijing 100084
| | - Y X Wang
- School of Physics, Peking University, Beijing 100871
| | - H T Wong
- Institute of Physics, Academia Sinica, Taipei 11529
| | - S Y Wu
- YaLong River Hydropower Development Company, Chengdu 610051
| | - Y C Wu
- Key Laboratory of Particle and Radiation Imaging (Ministry of Education) and Department of Engineering Physics, Tsinghua University, Beijing 100084
| | - H Y Xing
- College of Physics, Sichuan University, Chengdu 610065
| | - R Xu
- Key Laboratory of Particle and Radiation Imaging (Ministry of Education) and Department of Engineering Physics, Tsinghua University, Beijing 100084
| | - Y Xu
- School of Physics, Nankai University, Tianjin 300071
| | - T Xue
- Key Laboratory of Particle and Radiation Imaging (Ministry of Education) and Department of Engineering Physics, Tsinghua University, Beijing 100084
| | - Y L Yan
- College of Physics, Sichuan University, Chengdu 610065
| | - C H Yeh
- Institute of Physics, Academia Sinica, Taipei 11529
| | - N Yi
- Key Laboratory of Particle and Radiation Imaging (Ministry of Education) and Department of Engineering Physics, Tsinghua University, Beijing 100084
| | - C X Yu
- School of Physics, Nankai University, Tianjin 300071
| | - H J Yu
- NUCTECH Company, Beijing 100084
| | - J F Yue
- YaLong River Hydropower Development Company, Chengdu 610051
| | - M Zeng
- Key Laboratory of Particle and Radiation Imaging (Ministry of Education) and Department of Engineering Physics, Tsinghua University, Beijing 100084
| | - Z Zeng
- Key Laboratory of Particle and Radiation Imaging (Ministry of Education) and Department of Engineering Physics, Tsinghua University, Beijing 100084
| | - B T Zhang
- Key Laboratory of Particle and Radiation Imaging (Ministry of Education) and Department of Engineering Physics, Tsinghua University, Beijing 100084
| | - F S Zhang
- College of Nuclear Science and Technology, Beijing Normal University, Beijing 100875
| | - L Zhang
- College of Physics, Sichuan University, Chengdu 610065
| | - Z H Zhang
- Key Laboratory of Particle and Radiation Imaging (Ministry of Education) and Department of Engineering Physics, Tsinghua University, Beijing 100084
| | - K K Zhao
- College of Physics, Sichuan University, Chengdu 610065
| | - M G Zhao
- School of Physics, Nankai University, Tianjin 300071
| | - J F Zhou
- YaLong River Hydropower Development Company, Chengdu 610051
| | - Z Y Zhou
- Department of Nuclear Physics, China Institute of Atomic Energy, Beijing 102413
| | - J J Zhu
- College of Physics, Sichuan University, Chengdu 610065
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14
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Dai WH, Jia LP, Ma H, Yue Q, Kang KJ, Li YJ, An HP, C G, Chang JP, Chen YH, Cheng JP, Deng Z, Fang CH, Geng XP, Gong H, Guo QJ, Guo XY, He L, He SM, Hu JW, Huang HX, Huang TC, Jia HT, Jiang X, Karmakar S, Li HB, Li JM, Li J, Li QY, Li RMJ, Li XQ, Li YL, Liang YF, Liao B, Lin FK, Lin ST, Liu SK, Liu YD, Liu Y, Liu YY, Liu ZZ, Mao YC, Nie QY, Ning JH, Pan H, Qi NC, Ren J, Ruan XC, She Z, Singh MK, Sun TX, Tang CJ, Tang WY, Tian Y, Wang GF, Wang L, Wang Q, Wang Y, Wang YX, Wong HT, Wu SY, Wu YC, Xing HY, Xu R, Xu Y, Xue T, Yan YL, Yang LT, Yi N, Yu CX, Yu HJ, Yue JF, Zeng M, Zeng Z, Zhang BT, Zhang FS, Zhang L, Zhang ZH, Zhang ZY, Zhao KK, Zhao MG, Zhou JF, Zhou ZY, Zhu JJ. Exotic Dark Matter Search with the CDEX-10 Experiment at China's Jinping Underground Laboratory. Phys Rev Lett 2022; 129:221802. [PMID: 36493447 DOI: 10.1103/physrevlett.129.221802] [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] [Subscribe] [Scholar Register] [Received: 09/04/2022] [Accepted: 11/07/2022] [Indexed: 06/17/2023]
Abstract
A search for exotic dark matter (DM) in the sub-GeV mass range has been conducted using 205 kg day data taken from a p-type point contact germanium detector of the CDEX-10 experiment at China's Jinping underground laboratory. New low-mass dark matter searching channels, neutral current fermionic DM absorption (χ+A→ν+A) and DM-nucleus 3→2 scattering (χ+χ+A→ϕ+A), have been analyzed with an energy threshold of 160 eVee. No significant signal was found; thus new limits on the DM-nucleon interaction cross section are set for both models at the sub-GeV DM mass region. A cross section limit for the fermionic DM absorption is set to be 2.5×10^{-46} cm^{2} (90% C.L.) at DM mass of 10 MeV/c^{2}. For the DM-nucleus 3→2 scattering scenario, limits are extended to DM mass of 5 and 14 MeV/c^{2} for the massless dark photon and bound DM final state, respectively.
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Affiliation(s)
- W H Dai
- Key Laboratory of Particle and Radiation Imaging (Ministry of Education) and Department of Engineering Physics, Tsinghua University, Beijing 100084
| | - L P Jia
- Key Laboratory of Particle and Radiation Imaging (Ministry of Education) and Department of Engineering Physics, Tsinghua University, Beijing 100084
| | - H Ma
- Key Laboratory of Particle and Radiation Imaging (Ministry of Education) and Department of Engineering Physics, Tsinghua University, Beijing 100084
| | - Q Yue
- Key Laboratory of Particle and Radiation Imaging (Ministry of Education) and Department of Engineering Physics, Tsinghua University, Beijing 100084
| | - K J Kang
- Key Laboratory of Particle and Radiation Imaging (Ministry of Education) and Department of Engineering Physics, Tsinghua University, Beijing 100084
| | - Y J Li
- Key Laboratory of Particle and Radiation Imaging (Ministry of Education) and Department of Engineering Physics, Tsinghua University, Beijing 100084
| | - H P An
- Department of Physics, Tsinghua University, Beijing 100084
| | - Greeshma C
- Institute of Physics, Academia Sinica, Taipei 11529
| | | | - Y H Chen
- YaLong River Hydropower Development Company, Chengdu 610051
| | - J P Cheng
- Key Laboratory of Particle and Radiation Imaging (Ministry of Education) and Department of Engineering Physics, Tsinghua University, Beijing 100084
- College of Nuclear Science and Technology, Beijing Normal University, Beijing 100875
| | - Z Deng
- Key Laboratory of Particle and Radiation Imaging (Ministry of Education) and Department of Engineering Physics, Tsinghua University, Beijing 100084
| | - C H Fang
- College of Physics, Sichuan University, Chengdu 610065
| | - X P Geng
- Key Laboratory of Particle and Radiation Imaging (Ministry of Education) and Department of Engineering Physics, Tsinghua University, Beijing 100084
| | - H Gong
- Key Laboratory of Particle and Radiation Imaging (Ministry of Education) and Department of Engineering Physics, Tsinghua University, Beijing 100084
| | - Q J Guo
- School of Physics, Peking University, Beijing 100871
| | - X Y Guo
- YaLong River Hydropower Development Company, Chengdu 610051
| | - L He
- NUCTECH Company, Beijing 100084
| | - S M He
- YaLong River Hydropower Development Company, Chengdu 610051
| | - J W Hu
- Key Laboratory of Particle and Radiation Imaging (Ministry of Education) and Department of Engineering Physics, Tsinghua University, Beijing 100084
| | - H X Huang
- Department of Nuclear Physics, China Institute of Atomic Energy, Beijing 102413
| | - T C Huang
- Sino-French Institute of Nuclear and Technology, Sun Yat-sen University, Zhuhai 519082
| | - H T Jia
- College of Physics, Sichuan University, Chengdu 610065
| | - X Jiang
- College of Physics, Sichuan University, Chengdu 610065
| | - S Karmakar
- Institute of Physics, Academia Sinica, Taipei 11529
| | - H B Li
- Institute of Physics, Academia Sinica, Taipei 11529
| | - J M Li
- Key Laboratory of Particle and Radiation Imaging (Ministry of Education) and Department of Engineering Physics, Tsinghua University, Beijing 100084
| | - J Li
- Key Laboratory of Particle and Radiation Imaging (Ministry of Education) and Department of Engineering Physics, Tsinghua University, Beijing 100084
| | - Q Y Li
- College of Physics, Sichuan University, Chengdu 610065
| | - R M J Li
- College of Physics, Sichuan University, Chengdu 610065
| | - X Q Li
- School of Physics, Nankai University, Tianjin 300071
| | - Y L Li
- Key Laboratory of Particle and Radiation Imaging (Ministry of Education) and Department of Engineering Physics, Tsinghua University, Beijing 100084
| | - Y F Liang
- Key Laboratory of Particle and Radiation Imaging (Ministry of Education) and Department of Engineering Physics, Tsinghua University, Beijing 100084
| | - B Liao
- College of Nuclear Science and Technology, Beijing Normal University, Beijing 100875
| | - F K Lin
- Institute of Physics, Academia Sinica, Taipei 11529
| | - S T Lin
- College of Physics, Sichuan University, Chengdu 610065
| | - S K Liu
- College of Physics, Sichuan University, Chengdu 610065
| | - Y D Liu
- College of Nuclear Science and Technology, Beijing Normal University, Beijing 100875
| | - Y Liu
- College of Physics, Sichuan University, Chengdu 610065
| | - Y Y Liu
- College of Nuclear Science and Technology, Beijing Normal University, Beijing 100875
| | - Z Z Liu
- Key Laboratory of Particle and Radiation Imaging (Ministry of Education) and Department of Engineering Physics, Tsinghua University, Beijing 100084
| | - Y C Mao
- School of Physics, Peking University, Beijing 100871
| | - Q Y Nie
- Key Laboratory of Particle and Radiation Imaging (Ministry of Education) and Department of Engineering Physics, Tsinghua University, Beijing 100084
| | - J H Ning
- YaLong River Hydropower Development Company, Chengdu 610051
| | - H Pan
- NUCTECH Company, Beijing 100084
| | - N C Qi
- YaLong River Hydropower Development Company, Chengdu 610051
| | - J Ren
- Department of Nuclear Physics, China Institute of Atomic Energy, Beijing 102413
| | - X C Ruan
- Department of Nuclear Physics, China Institute of Atomic Energy, Beijing 102413
| | - Z She
- Key Laboratory of Particle and Radiation Imaging (Ministry of Education) and Department of Engineering Physics, Tsinghua University, Beijing 100084
| | - M K Singh
- Institute of Physics, Academia Sinica, Taipei 11529
- Department of Physics, Banaras Hindu University, Varanasi 221005
| | - T X Sun
- College of Nuclear Science and Technology, Beijing Normal University, Beijing 100875
| | - C J Tang
- College of Physics, Sichuan University, Chengdu 610065
| | - W Y Tang
- Key Laboratory of Particle and Radiation Imaging (Ministry of Education) and Department of Engineering Physics, Tsinghua University, Beijing 100084
| | - Y Tian
- Key Laboratory of Particle and Radiation Imaging (Ministry of Education) and Department of Engineering Physics, Tsinghua University, Beijing 100084
| | - G F Wang
- College of Nuclear Science and Technology, Beijing Normal University, Beijing 100875
| | - L Wang
- Department of Physics, Beijing Normal University, Beijing 100875
| | - Q Wang
- Key Laboratory of Particle and Radiation Imaging (Ministry of Education) and Department of Engineering Physics, Tsinghua University, Beijing 100084
- Department of Physics, Tsinghua University, Beijing 100084
| | - Y Wang
- Key Laboratory of Particle and Radiation Imaging (Ministry of Education) and Department of Engineering Physics, Tsinghua University, Beijing 100084
- Department of Physics, Tsinghua University, Beijing 100084
| | - Y X Wang
- School of Physics, Peking University, Beijing 100871
| | - H T Wong
- Institute of Physics, Academia Sinica, Taipei 11529
| | - S Y Wu
- YaLong River Hydropower Development Company, Chengdu 610051
| | - Y C Wu
- Key Laboratory of Particle and Radiation Imaging (Ministry of Education) and Department of Engineering Physics, Tsinghua University, Beijing 100084
| | - H Y Xing
- College of Physics, Sichuan University, Chengdu 610065
| | - R Xu
- Key Laboratory of Particle and Radiation Imaging (Ministry of Education) and Department of Engineering Physics, Tsinghua University, Beijing 100084
| | - Y Xu
- School of Physics, Nankai University, Tianjin 300071
| | - T Xue
- Key Laboratory of Particle and Radiation Imaging (Ministry of Education) and Department of Engineering Physics, Tsinghua University, Beijing 100084
| | - Y L Yan
- College of Physics, Sichuan University, Chengdu 610065
| | - L T Yang
- Key Laboratory of Particle and Radiation Imaging (Ministry of Education) and Department of Engineering Physics, Tsinghua University, Beijing 100084
| | - N Yi
- Key Laboratory of Particle and Radiation Imaging (Ministry of Education) and Department of Engineering Physics, Tsinghua University, Beijing 100084
| | - C X Yu
- School of Physics, Nankai University, Tianjin 300071
| | - H J Yu
- NUCTECH Company, Beijing 100084
| | - J F Yue
- YaLong River Hydropower Development Company, Chengdu 610051
| | - M Zeng
- Key Laboratory of Particle and Radiation Imaging (Ministry of Education) and Department of Engineering Physics, Tsinghua University, Beijing 100084
| | - Z Zeng
- Key Laboratory of Particle and Radiation Imaging (Ministry of Education) and Department of Engineering Physics, Tsinghua University, Beijing 100084
| | - B T Zhang
- Key Laboratory of Particle and Radiation Imaging (Ministry of Education) and Department of Engineering Physics, Tsinghua University, Beijing 100084
| | - F S Zhang
- College of Nuclear Science and Technology, Beijing Normal University, Beijing 100875
| | - L Zhang
- College of Physics, Sichuan University, Chengdu 610065
| | - Z H Zhang
- Key Laboratory of Particle and Radiation Imaging (Ministry of Education) and Department of Engineering Physics, Tsinghua University, Beijing 100084
| | - Z Y Zhang
- Key Laboratory of Particle and Radiation Imaging (Ministry of Education) and Department of Engineering Physics, Tsinghua University, Beijing 100084
| | - K K Zhao
- College of Physics, Sichuan University, Chengdu 610065
| | - M G Zhao
- School of Physics, Nankai University, Tianjin 300071
| | - J F Zhou
- YaLong River Hydropower Development Company, Chengdu 610051
| | - Z Y Zhou
- Department of Nuclear Physics, China Institute of Atomic Energy, Beijing 102413
| | - J J Zhu
- College of Physics, Sichuan University, Chengdu 610065
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15
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Li JM, Guan YH, Li JP, Luo L, Yang F, Chen XB. [Discussion on relevant issues of Technical Specifications for Occupational Health Surveillance (GBZ 188-2014)]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2022; 40:787-789. [PMID: 36348565 DOI: 10.3760/cma.j.cn121094-20211008-00483] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Technical Specifications for Occupational Health Surveillance (GBZ 188-2014) is an important basis for judging suspected occupational diseases and occupational contraindications. There are crossing over or overlap between occupational contraindications and diagnostic criteria of poisoning damage. Occupational contraindications have different meanings with the degree and range of common diseases or symptoms and the frequency of physical examination during employment conflicts with the current standard. Based on the practice of occupational health examination in a large population, the present study analyzed relevant articles and put forward some suggestions for revision, in combination with clinical medicine, occupational health standards, and diagnostic standards of occupational diseases. The modification could provide a reference for the revision of Technical Specifications for Occupational Health Surveillance and the practice of occupational health examination.
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Affiliation(s)
- J M Li
- The Department of Occupational Health Management, Changsha Centre for Disease Control and Prevention, Changsha 410003, China
| | - Y H Guan
- The Department of Occupational Health Management, Changsha Centre for Disease Control and Prevention, Changsha 410003, China
| | - J P Li
- The Department of Occupational Health Management, Changsha Centre for Disease Control and Prevention, Changsha 410003, China
| | - L Luo
- The Department of Occupational Health Management, Changsha Centre for Disease Control and Prevention, Changsha 410003, China
| | - F Yang
- The Department of Occupational Health Management, Changsha Centre for Disease Control and Prevention, Changsha 410003, China
| | - X B Chen
- The Department of Occupational Health Management, Changsha Centre for Disease Control and Prevention, Changsha 410003, China
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16
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Pang ZK, Wang J, Chen Y, Chu HX, Zhang MY, Li JM. [Diagnostic efficiency and incremental value of myocardial blood flow quantification by CZT SPECT for patients with coronary artery disease]. Zhonghua Xin Xue Guan Bing Za Zhi 2022; 50:494-500. [PMID: 35589599 DOI: 10.3760/cma.j.cn112148-20211124-01018] [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] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Objective: To investigate the diagnostic efficiency and incremental value of quantitative myocardial blood flow measurements by Cadmium-Zine-Telluride (CZT) single photon emission computed tomography (SPECT) dynamic myocardial perfusion imaging (MPI) in patients with coronary artery disease (CAD) compared with traditional semi-quantitative measurements by MPI. Methods: This is a retrospective, cross-sectional study. We retrospectively analyzed clinical data of patients with suspected or known CAD, who underwent the dynamic MPI quantitative blood flow measurement of CZT SPECT in TEDA International Cardiovascular Hospital from October 2018 to December 2020. Clinical data, semi-quantitative parameters (stress score (SS), rest score (RS) and different score (DS)) and myocardial quantitative blood flow parameters (rest myocardial blood flow (rMBF), stress myocardial blood flow (sMBF) and myocardial flow reserve (MFR)) were analyzed. According to the results of coronary angiography, patients were divided into the stenosis group and the control group with coronary artery stenosis ≥50% or ≥75% as the diagnosis criteria. The differences of quantitative and semi-quantitative parameters between the two groups were compared, and the diagnostic efficacy was compared by receiver operating characteristic(ROC) curve. Results: A total of 98 patients with a mean age of (62.1±8.7) years were included in the study, including 66 males (67%). At the patient level, with the positive standard of coronary artery stenosis≥50%, the left ventricle (LV) stress MBF (LV-sMBF) ((1.36±0.45) ml·min-1·g-1) and LV-MFR (1.45±0.43) of the stenosis group were lower than the LV-sMBF ((2.09±0.64) ml·min-1·g-1) and LV-MFR (2.17±0.54) of control group; summed SS and summed DS were higher than control group (all P<0.05). With the positive standard of coronary artery stenosis ≥75%, the LV-sMBF ((1.19±0.34) ml·min-1·g-1) and LV-MFR (1.34±0.35) of stenosis group were lower than the LV-sMBF ((1.94±0.63) ml·min-1·g-1) and MFR (2.00±0.58) of control group; all semi-quantitative parameters were higher than control group (all P<0.05). At the vascular level, with coronary artery stenosis ≥50% as the diagnosis criteria, the sMBF ((1.26±0.49) ml·min-1·g-1) and MFR (1.35±0.46) of stenosis group were lower than the sMBF ((1.95±0.70) ml·min-1·g-1) and MFR (2.05±0.65) of control group; SS and DS were higher than control group (all P<0.05). With coronary artery stenosis≥75% as the diagnosis criteria, the sMBF ((1.12±0.41) ml·min-1·g-1) and MFR (1.25±0.38) of stenosis group were lower than the sMBF ((1.84±0.70) ml·min-1·g-1) and MFR (1.93±0.66) of control group; all semi-quantitative parameters were higher than control group (all P<0.05). With coronary artery stenosis≥50% as the diagnosis criteria and CAG as the reference standard, the AUC and 95%CI of myocardial quantitative blood flow parameters indicated by ROC curve for diagnosis of CAD were 0.830 (0.783-0.877). The sensitivity (86.1% vs. 61.5%), specificity (82.6% vs. 73.8%), positive predictive value (77.8% vs. 62.5%), negative predictive value (89.3% vs. 73.0%) and accuracy (84.0% vs. 68.7%) were all higher than the semi-quantitative parameters (all P<0.05). With coronary artery stenosis≥75% as the diagnosis criteria, the AUC and 95%CI of myocardial quantitative blood flow parameters indicated by ROC curve for diagnosis of CAD were 0.832(0.785-0.879). The sensitivity (89.2% vs. 67.6%), negative predictive value (95.5% vs. 86.2%) and accuracy (80.6% vs. 68.0%) were all higher than semi-quantitative parameters (all P<0.05). Conclusion: Compared with traditional SPECT MPI derived semi-quantitative parameters, diagnostic efficacy for CAD is higher using CZT SPECT quantitative myocardial blood flow parameters, this strategy thus has additional diagnostic benefits and incremental value on the diagnosis of CAD.
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Affiliation(s)
- Z K Pang
- Clinical School of Cardiovascular Disease, Tianjin Medical University, Department of Nuclear Medicine, TEDA International Cardiovascular Hospital, Tianjin 300457, China
| | - J Wang
- Clinical School of Cardiovascular Disease, Tianjin Medical University, Department of Nuclear Medicine, TEDA International Cardiovascular Hospital, Tianjin 300457, China
| | - Y Chen
- Clinical School of Cardiovascular Disease, Tianjin Medical University, Department of Nuclear Medicine, TEDA International Cardiovascular Hospital, Tianjin 300457, China
| | - H X Chu
- Clinical School of Cardiovascular Disease, Tianjin Medical University, Department of Nuclear Medicine, TEDA International Cardiovascular Hospital, Tianjin 300457, China
| | - M Y Zhang
- Clinical School of Cardiovascular Disease, Tianjin Medical University, Department of Nuclear Medicine, TEDA International Cardiovascular Hospital, Tianjin 300457, China
| | - J M Li
- Clinical School of Cardiovascular Disease, Tianjin Medical University, Department of Nuclear Medicine, TEDA International Cardiovascular Hospital, Tianjin 300457, China
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17
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Jiao W, Li JM, Zhang X, Niu HT. [Problems to be solved in the development from the perspective of future application scenarios of telesurgery]. Zhonghua Wai Ke Za Zhi 2022; 60:436-440. [PMID: 35359084 DOI: 10.3760/cma.j.cn112139-20211210-00589] [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] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Telemedicine, which integrates medicine, communication, engineering, information and other disciplines, is a hot emerging cross field in recent years. With the development of telecommunication technology and surgical robot, telesurgery is regarded as the "crown pearl" in telemedicine and has attracted more and more attention. As an extension of traditional surgery, telesurgery greatly extends the connotation and concept of surgery and embodies the great leap forward development of surgical technology. Despite the current limitations such as network delay, transparency of remote robot operation and team construction of surgeons, telesurgery has still formed a variety of innovative application scenarios and achieved rapid development in China in recent years. In view of the uneven distribution of medical resources in China and the epidemic of COVID-19 in the world, this paper puts forward the possible problems and solutions in the development of telesurgery, and looks forward to the feasibility of telesurgery technology in process of shifting the focus of medical and health care down to the community level, channeling resources accordingly.
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Affiliation(s)
- W Jiao
- Department of Urology, Affiliated Hospital of Qingdao University, Qingdao 266013, China
| | - J M Li
- School of Mechanical Engineering, Tianjin University, Tianjin 300072, China
| | - X Zhang
- Qingdao Branch of China Mobile Shandong Co., Ltd, Qingdao 266071, China
| | - H T Niu
- Department of Urology, Affiliated Hospital of Qingdao University, Qingdao 266013, China
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Diao ZL, Zhang R, Li JM. [Analysis of the methods and quality assurance of metagenomic next-generation sequencing to detect the microbial cfDNA from blood samples in China]. Zhonghua Yi Xue Za Zhi 2022; 102:1114-1118. [PMID: 35436811 DOI: 10.3760/cma.j.cn112137-20220104-00017] [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] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Objective: To investigate the methods and quality assurance of metagenomic next-generation sequencing (mNGS) to detect the microbial cfDNA (mcfDNA) from blood samples in different laboratories across China. Methods: In October 2020, questionnaires about detecting mcfDNA in blood samples with mNGS were distributed to 80 laboratories across the country. The questionnaire included four parts: pre-analysis, during analysis, post-analysis, and carrying out of performance validation for mNGS. (1) Pre-analysis: the requirements for samples quality, such as collection, storage, the transportation conditions of samples; (2) During analysis: the extraction workflows of mcfDNA, the quality requirements of the library, the application of the sequencing platforms and the bioinformatics analysis pipelines; (3) Post-analysis: the standard of interpretation results for mNGS; (4) Carrying out of performance validation: the minimum detection limit for various pathogens. All laboratories are required to fill in the questionnaire according to the actual situation. The feedback data were summarized and analyzed. Results: The 80 laboratories included 20 medical centers and 60 independent medical laboratories. There were 80.0% (64/80) of laboratories indicated that both plasma and serum samples were used to detect mcfDNA in blood, and the rest of the laboratories (16/80, 20.0%) only used plasma samples. The sequencing platforms used by mNGS laboratories involved in the survey included illumina (49), Beijing Genomics Institute (16), Ion Torrent (13) and Nanopore sequencing (2). There were 87.5% (70/80) of laboratories used the integrated analysis tools built by the third-party laboratories, and other laboratories (12.5%, 10/80) independently built the analysis platform by open-source software. The interpretation criteria of mNGS results varied between laboratories, among which the normalized number of pathogen-specific sequences, relative abundance, genome coverage rate, and the detection of the microorganism in the negative control were the main factors considered by laboratories. Most laboratories (76.3%, 61/80) had carried out the performance validation for the mcfDNA mNGS workflows. The limit of detection of the laboratories-developed mNGS workflows for Gram-positive bacteria, Gram-negative bacteria, fungi, parasites, and other pathogens were mainly distributed at 10-100 copies/ml, DNA virus was mainly distributed at 500-1 000 copies/ml. Conclusions: The mNGS workflows of various laboratories are very different. In order to ensure timely and accurate testing results, every laboratory needs to actively optimize the mNGS testing procedures, improve quality assurance measures, and carry out performance validation before mNGS is widely used in clinical settings.
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Affiliation(s)
- Z L Diao
- Peking University Fifth School of Clinical Medicine, National Center for Clinical Laboratories, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing Hospital/National Center of Gerontology, Beijing 100730,China
| | - R Zhang
- Peking University Fifth School of Clinical Medicine, National Center for Clinical Laboratories, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing Hospital/National Center of Gerontology, Beijing 100730,China
| | - J M Li
- Peking University Fifth School of Clinical Medicine, National Center for Clinical Laboratories, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing Hospital/National Center of Gerontology, Beijing 100730,China
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Zhang XP, Gu ZW, Xiao ZQ, Tan FL, Ye XQ, Tong YJ, Tang XS, Zhou ZY, Cheng C, Zhao J, Luo BQ, Li JM, Kuang XW, Zhao JH, Sun CW, Liu CL. Quasi-isentropic compression of LiH above 400 GPa using magnetocumulative generator. Rev Sci Instrum 2022; 93:043906. [PMID: 35489900 DOI: 10.1063/5.0078422] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/12/2021] [Accepted: 04/06/2022] [Indexed: 06/14/2023]
Abstract
The knowledge of high-pressure behavior of LiH is significant for the validation of fundamental theoretical models and applications in thermonuclear materials and potential energy supplies. The compressibility of 7LiH under isentropic compression at high pressure was investigated experimentally and theoretically. The experimental technique for quasi-isentropic compression with low-density materials was developed using the magnetocumulative generator CJ-100 and x-ray flash radiography. The x-ray images and extracted interface of the sample target in dynamic flash radiography experiments were obtained. According to each interface size of the target both before and after compression, the compression ratio of 7LiH and reference material aluminum was obtained. The density of the reference and using its known isentropic curve provide the pressure in the reference. The pressure in 7LiH was deduced from the pressure in the reference and using the calculated gradient correction factor. The quasi-isentropic data point at 438 GPa was obtained experimentally. A semiempirical three-term complete equation of state was constructed and validated for 7LiH using the theory of Mie-Grüneisen-Debye with experimental data from the literature. The quasi-isentrope data point is reasonably consistent with the theoretical results. The quasi-isentropic experimental techniques and results broaden the existing research scope and are practical and helpful to further validate theoretical models in the future.
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Affiliation(s)
- X P Zhang
- Institute of Fluid Physics, China Academy of Engineering Physics, Mianyang 621900, China
| | - Z W Gu
- Institute of Fluid Physics, China Academy of Engineering Physics, Mianyang 621900, China
| | - Z Q Xiao
- Institute of Fluid Physics, China Academy of Engineering Physics, Mianyang 621900, China
| | - F L Tan
- Institute of Fluid Physics, China Academy of Engineering Physics, Mianyang 621900, China
| | - X Q Ye
- Science and Technology on Surface Physics and Chemistry Laboratory, Mianyang 621907, China
| | - Y J Tong
- Institute of Fluid Physics, China Academy of Engineering Physics, Mianyang 621900, China
| | - X S Tang
- Institute of Fluid Physics, China Academy of Engineering Physics, Mianyang 621900, China
| | - Z Y Zhou
- Institute of Fluid Physics, China Academy of Engineering Physics, Mianyang 621900, China
| | - C Cheng
- Institute of Fluid Physics, China Academy of Engineering Physics, Mianyang 621900, China
| | - J Zhao
- Institute of Fluid Physics, China Academy of Engineering Physics, Mianyang 621900, China
| | - B Q Luo
- Institute of Fluid Physics, China Academy of Engineering Physics, Mianyang 621900, China
| | - J M Li
- Institute of Fluid Physics, China Academy of Engineering Physics, Mianyang 621900, China
| | - X W Kuang
- Institute of Fluid Physics, China Academy of Engineering Physics, Mianyang 621900, China
| | - J H Zhao
- Institute of Applied Electronics, China Academy of Engineering Physics, Mianyang 621900, China
| | - C W Sun
- Shanghai Institute of Laser Plasma, China Academy of Engineering Physics, Shanghai 201800, China
| | - C L Liu
- China Academy of Engineering Physics, Mianyang 621999, China
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20
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Zhu Y, Huang JM, Zhang GN, Li JM, Huang J. [Expression of lnc-MyD88 and its relationship with the prognosis of patients with epithelial ovarian cancer]. Zhonghua Fu Chan Ke Za Zhi 2022; 57:117-124. [PMID: 35184472 DOI: 10.3760/cma.j.cn112141-20211025-00619] [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] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Objective: To explore the expression of long non-coding RNA-myeloid differentiation factor 88 (lnc-MyD88) and its relationship with the prognosis of patients with epithelial ovarian cancer (EOC). Methods: A total of 70 EOC patients who underwent initial cytoreductive surgery and platinum-based drugs combined with paclitaxel for 6 to 8 courses were selected at Sichuan Cancer Hospital from January 2016 to January 2019. The fresh cancer tissue specimens were collected. In addition, 28 fresh normal ovarian tissues from patients who underwent surgery for benign gynecological diseases during the same period were collected as control group. Reverse transcription (RT) and real-time quantitative polymerase chain reaction (qPCR) were used to detect the expression of lnc-MyD88 and myeloid differentiation factor 88 (MyD88) mRNA in EOC tissues and normal ovarian tissues. The correlation between the expression of lnc-MyD88 and MyD88 mRNA in EOC was analyzed by Pearson's correlation coefficient. The relationship between lnc-MyD88 expression and clinicopathological characteristics of patients with EOC was analyzed. Kaplan-Meier method was used to calculate the survival rate of patients. The log-rank test was used for univariate survival analysis, and Cox proportional hazard model was used for multivariate survival analysis. Results: (1) RT-qPCR showed that the relative expression level of lnc-MyD88 and MyD88 mRNA in EOC were 0.009 (0.000-0.049) and 0.001 (0.000-0.006), respectively, which were significantly higher than those of normal ovarian tissues (all P<0.01); Pearson's correlation coefficient showed that the expression of lnc-MyD88 and MyD88 mRNA in EOC was positively correlated (r2=0.610, P<0.01). (2) The high expression rate of lnc-MyD88 in EOC patients with lymph node metastasis, distant metastasis and chemotherapy resistance (71%, 64% and 70%, respectively) were significantly higher than the patients in control group (41%, 40% and 35%, respectively; all P<0.05). There were no statistically significant in the high expression rate of lnc-MyD88 in EOC patients with different ages, pathological types, pathological grades, surgical pathological stages, postoperative residual lesion size, and ascites cancer cells (all P>0.05). (3) Univariate analysis showed that surgical pathological staging, lymph node metastasis, distant metastasis, postoperative residual tumor size, and high expression of lnc-MyD88 and MyD88 mRNA significantly affected the progression-free survival (PFS) and overall survival (OS) of EOC patients (all P<0.05), ascites cancer cells were the risk factors that significantly affected PFS in EOC patients (P=0.040); multivariate analysis showed that surgical pathological staging and high expression of lnc-MyD88 and MyD88 mRNA were independent factors affecting PFS and OS in EOC patients (all P<0.05), the size of residual lesions after surgery was an independent factor affecting PFS in EOC patients (P=0.001). Conclusions: The level of lnc-MyD88 expression in ovarian cancer tissues was significantly increased. Lnc-MyD88, as a molecular marker for the poor prognosis of EOC, is related to the expression of MyD88 in EOC, and may be involved in its expression regulation, thereby affecting the survival and prognosis of EOC patients.
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Affiliation(s)
- Y Zhu
- Department of Ultrasound, Sichuan Cancer Hospital, Sichuan Cancer Center, School of Medicine, University of Electronic Science and Technology of China, Chengdu 610041, China
| | - J M Huang
- Sichuan Cancer Institute, Chengdu 610041, China
| | - G N Zhang
- Department of Gynecologic Oncology, Sichuan Cancer Hospital, Sichuan Cancer Center, School of Medicine, University of Electronic Science and Technology of China, Chengdu 610041, China
| | - J M Li
- Sichuan Cancer Institute, Chengdu 610041, China
| | - Jianmei Huang
- Department of Gynecologic Oncology, Sichuan Cancer Hospital, Sichuan Cancer Center, School of Medicine, University of Electronic Science and Technology of China, Chengdu 610041, China
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21
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Shao XH, Li JM, Zhang AL, Yao Y, Sun FF, Li ZZ, Liu T, Cheng K. Discovery and Characterization of Intercondylar Transphyseal Complexes and their Oncological Significance in Transphyseal Extension of Pediatric Osteosarcoma. Orthop Surg 2022; 14:411-421. [PMID: 35199961 PMCID: PMC8867409 DOI: 10.1111/os.13221] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Revised: 01/10/2022] [Accepted: 01/10/2022] [Indexed: 11/28/2022] Open
Abstract
Objective To explore whether there exist undiscovered transphyseal vasculature‐canal compound structures in immature femurs and tibias, and reveal their potential oncological impact. Methods This investigation was divided into a morphological study and a clinical study. In the morphological part, a new‐identified anatomic structure was investigated by using radiographical, anatomical, and histological methodologies. Twenty‐eight 1‐mm‐slice thickness magnetic resonance images of pediatric knees were generated and 10 pediatric knees were dissected to verify the existence and universality, observe the radiographic and anatomic characteristics, and determined the located region of this structure. Hematoxylin–eosin staining, immunofluorescence, and angiography procedures were performed to illustrate its histological feature, molecular identification, and vascular origination, respectively. In the clinical part, 38 pediatric osteosarcoma patients were enrolled from January 2014 to December 2020. A descriptive clinical study including 13 typical participants was conducted to investigate the oncological significance of this new‐identified structure. Meanwhile, the discrepancy in transphyseal osteosarcoma extension between different physeal regions was evaluated in a cross‐sectional study. Results In the morphological study, we discovered a new‐found vasculature‐canal compound structure, intercondylar transphyseal complex (ITC), which originated from the middle genicular vessels, traversed the whole epiphysis, and breached the intact open physis in the immature proximal tibia or distal femur. The components of ITC included the juxta‐articular, epiphyseal, and transphyseal segments of vessels, the canals that traverse the entire epiphysis and physis and enclosed the vessels, vascular foramina on articular facet and foramina‐covered synovium. Depending on the location, ITCs can be divided into three types: femoral ITC, anterior tibial ITC, and posterior tibial ITC. Clinically, the ITC may facilitate intercondylar transphyseal sarcomatous dissemination without damaging the adjacent physeal cartilage. Compared to bilateral condylar physes, more osteosarcomas transgressed the open growth plates through intercondylar regions in which ITC was located (P = 0.022). Conclusion As the “gap” on intact open physis, ITC, which is a new‐identified compound structure in intercondylar regions of immature femur or tibia, may promote intercondylar transphyseal tumor extension. Moreover, the identification and characterization of ITC subvert some traditional comprehensions about physis and may provide novel perspectives for pediatric osteosarcomas.
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Affiliation(s)
- Xian-Hao Shao
- Department of Orthopaedics, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Jian-Min Li
- Department of Orthopaedics, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Ai-Lin Zhang
- Rehabilitation Units, University of Canberra Hospital, Bruce, Australian Capital Territory, Australia
| | - Yuan Yao
- Department of Radiography, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Fei-Fei Sun
- Department of Pathology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Zhen-Zhong Li
- Department of Anatomy and Neurobiology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Tao Liu
- Department of Orthopaedics, Qilu Hospital (Qingdao), Cheeloo College of Medicine, Shandong University, Qingdao, China
| | - Kun Cheng
- Department of Orthopaedics, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
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22
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Li JM, Liu Y, Liu WP. [Acute myelocytic leukemia patient with multiple isolated extramedullary relapse and long-term survival: report of a case]. Zhonghua Bing Li Xue Za Zhi 2022; 51:152-154. [PMID: 35152639 DOI: 10.3760/cma.j.cn112151-20210410-00271] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Affiliation(s)
- J M Li
- Department of Pathology, Sichuan Cancer Hospital, Chengdu 610041, China
| | - Y Liu
- Department of Pathology, Sichuan Cancer Hospital, Chengdu 610041, China
| | - W P Liu
- Department of Pathology, West China Hospital of Sichuan University, Chengdu 610041, China
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23
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Cui XD, Li Y, Cao YY, Yang XQ, Li JM, Qian J. [Clinical characteristics of paroxysmal nocturnal hemoglobinuria (PNH) complicated with ischemic bowel disease]. Zhonghua Nei Ke Za Zhi 2022; 61:205-209. [PMID: 35090257 DOI: 10.3760/cma.j.cn112138-20210307-00188] [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] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Paroxysmal nocturnal hemoglobinuria (PNH) is a rare acquired hematopoietic stem cell disease. Gastrointestinal involvement is rarely seen in PNH. This study aims to analyze the clinical features in PNH patients complicated with ischemic bowel disease. Clinical date of 6 patients were collected at Peking Union Medical College Hospital from January 2010 to December 2020. The clinical manifestations, laboratory tests,imaging, endoscopic,and histopathological features and treatment were analyzed.Five in 6 patients were men, with a median age of 31 years old at onset. Most of disease course were recurrent episodes of chronic disease, with abdominal pain (5/6) and gastrointestinal bleeding (5/6). Laboratory examinations showed pancytopenia, reticulocytosis, elevated serum lactate dehydrogenase, high D-dimer and C-reactive protein levels in all patients. Multiple segments of small intestine were the most commonly involved and colon was also affected. Abdominal CT scan showed thickening and roughness or exudation of the intestinal wall (6/6), increased mesenteric density or "comb sign"(4/6), and cholestasis or gallbladder stones (5/6). Endoscopic manifestations included irregular shallow ulcers in the annular cavity (5/6), swelling mucosa with well-defined margins (6/6). Pathological biopsy revealed chronic inflammation of mucosa. The efficacy of steroids combined with anticoagulant therapy was better than that of steroids alone. Ischemic bowel disease in PNH patients is different from typical ischemic enteritis. Young patients, involvement of intestine with multiple segments are common characteristics. The anticoagulant is an essential agent for these patients.
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Affiliation(s)
- X D Cui
- Department of Gastroenterology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China Department of Gastroenterology, Qilu Hospital of Shandong University, Qingdao 266035, China
| | - Y Li
- Department of Gastroenterology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - Y Y Cao
- Department of Hematology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - X Q Yang
- Department of Gastroenterology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - J M Li
- Department of Gastroenterology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - Jiaming Qian
- Department of Gastroenterology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
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24
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Han YX, Chen YQ, Li JM, Zhang R. [National external quality assessment for molecular detection of severe acute respiratory syndrome coronavirus 2 Delta variant]. Zhonghua Yi Xue Za Zhi 2022; 102:216-221. [PMID: 35042291 DOI: 10.3760/cma.j.cn112137-20211018-02299] [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] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Objective: To clarify the impact of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) Delta variant on the performance of existing molecular diagnostic assays, and investigate the detection ability of clinical laboratories across China. Methods: The first nationwide external quality assessment (EQA) for molecular detection of Delta variant was carried out based on the non-infectious phage virus-like particles samples, which were prepared by genetic engineering methods and distributed to 8 488 laboratories nationwide. The EQA panel was composed of three Delta variant samples (7.5×102, 1.5×103 and 6.0×103 copies/ml), one non-variant weak positive sample and one negative sample. The percentage of agreement (PA) of Delta variant samples with different concentration, the PA of Delta variant and non-variant samples with 7.5×102 copies/ml, the PA of assays used by more than 100 laboratories for Delta variant samples with different concentration and the PA of Delta variant and non-variant samples with 7.5×102 copies/ml were calculated and analyzed. Results: The data from 8 127 laboratories were available for evaluation. The testing capability of 98.77% (8 027/8 127) of the participating laboratories was found to be competent in reporting correct results for all samples. The overall percentage of agreement (OPA), negative percentage of agreement (NPA) and positive percentage of agreement (PPA) of the samples were 99.64% (40 490/40 635), 99.73% (8 105/8 127), 99.62% (32 385/32 508), respectively. With the decrease of the concentration of the samples, the PPA of Delta variant samples decreased. The PPAs were 99.41% and 99.51% for Delta variant and non-variant samples with 7.5×102 copies/ml, respectively, with no statistical difference (P=0.392). The OPA, NPA and PPA of the assays used by more than 100 laboratories were all greater than 98%, and no statistical difference of the PPAs was identified between Delta variant and non-variant samples with 7.5×102 copies/ml (P>0.05). Conclusions: Delta variant fails to impair the performance of current molecular diagnostic assays in China. The clinical laboratories have the same detection capabilities for Delta variant and non-variant samples. However, in certain laboratories, further improvement is required to ensure the accurate detection of weak positive samples.
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Affiliation(s)
- Y X Han
- National Center for Clinical Laboratories, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing Hospital/National Center of Gerontology, Beijing 100730, China
| | - Y Q Chen
- Graduate School of Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - J M Li
- National Center for Clinical Laboratories, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing Hospital/National Center of Gerontology, Beijing 100730, China
| | - R Zhang
- National Center for Clinical Laboratories, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing Hospital/National Center of Gerontology, Beijing 100730, China
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25
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Sun XT, Du SQ, Ma HG, Li JM, Wang X. [TFE3 positive and pigment rich perivascular epithelioid cell tumor of stomach: report of a case]. Zhonghua Bing Li Xue Za Zhi 2022; 51:65-67. [PMID: 34979760 DOI: 10.3760/cma.j.cn112151-20210816-00571] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Affiliation(s)
- X T Sun
- Department of Pathology, Rushan People's Hospital, Shandong Province, Rushan 264500, China
| | - S Q Du
- Department of Pathology, Linqing People's Hospital, Shandong Province, Linqing 252600, China
| | - H G Ma
- Department of Gastroenterology, Linqing People's Hospital, Shandong Province, Linqing 252600, China
| | - J M Li
- Department of Pathology, Linqing People's Hospital, Shandong Province, Linqing 252600, China
| | - X Wang
- Department of Pathology, Qilu Hospital of Shandong University, Jinan 250012, China
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26
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Ling YT, Li JM, Ling Y, Wang SG, Wang JT, Zhang XY, Dong LH. Wernekinck Commissure Syndrome with Holmes Tremor: A Report of Two Cases and Review of Literature. Neurol India 2022; 70:281-284. [PMID: 35263896 DOI: 10.4103/0028-3886.338697] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Wernekinck commissure syndrome is a rare midbrain infarction, it consists of several symptoms including bilateral cerebellar ataxia, ophthalmoplegia, and palatal tremor. Holmes tremor is a rare clinical syndrome characterized by a combination of resting, postural, and action tremors. We describe two cases of Wernekinck commissure syndrome with Holmes tremor. To the best of our knowledge, it has been rarely reported in the literature to date. Both of the cases were presented with acute onset of bilateral cerebellar ataxia, dysarthria, and Holmes tremor. In the treatment, one patient was given "clonazepam and benheisol," the other was received acupuncture therapy, both of them showed a marked improvement in ataxia and tremor.
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Affiliation(s)
- Y T Ling
- Department of Neurology, Rizhao People's Hospital, Rizhao, Shandong, China
| | - J M Li
- Department of Neurology, Rizhao People's Hospital, Rizhao, Shandong, China
| | - Y Ling
- Department of Nutrition, Rizhao People's Hospital, Rizhao, Shandong, China
| | - S G Wang
- Department of Neurology, Rizhao People's Hospital, Rizhao, Shandong, China
| | - J T Wang
- Department of Neurology, Rizhao People's Hospital, Rizhao, Shandong, China
| | - X Y Zhang
- Department of Emergency, Rizhao People's Hospital, Rizhao, Shandong, China
| | - L H Dong
- Department of Neurology, Rizhao People's Hospital, Rizhao, Shandong, China
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27
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Zhu CC, Qin YJ, Feng JZ, Hou DS, Li JM. [Giant intraductal oncocytic papillary neoplasm of the pancreas: report of a case]. Zhonghua Bing Li Xue Za Zhi 2021; 50:1390-1392. [PMID: 34865434 DOI: 10.3760/cma.j.cn112151-20210727-00533] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Affiliation(s)
- C C Zhu
- Department of Pathology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan 250021, China
| | - Y J Qin
- Department of Pathology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan 250021, China
| | - J Z Feng
- Department of Radiology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan 250021, China
| | - D S Hou
- Department of Pathology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan 250021, China
| | - J M Li
- Department of Pathology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan 250021, China
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Kang SJ, Bao FL, Huang DS, Jiang T, Hu YM, Li JM, Liu T. Percutaneous Cerclage Wiring Combined with Cephalomedullary Nailing for Irreducible Subtrochanteric Fractures. Orthop Surg 2021; 13:1899-1911. [PMID: 34435729 PMCID: PMC8523774 DOI: 10.1111/os.13144] [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] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/20/2021] [Revised: 08/03/2021] [Accepted: 08/03/2021] [Indexed: 11/30/2022] Open
Abstract
OBJECTIVE To explore the surgical method, operation essentials and the clinical effect of the treatment of irreducible subtrochanteric femoral fractures by percutaneous cerclage wiring and Cephalomedullary nail. METHOD From February 2016 to October 2019, 17 cases of irreducible subtrochanteric femoral fractures (SFFs) treated via a minimally invasive wire system and intramedullary nail fixation were reviewed retrospectively. Ten male and seven female patients were involved. The average age was 59.88 ± 16.13 years, ranging from 41 to 94 years. Among the patients, seven were injured in traffic accidents, five fell from a standing height, and five injured themselves from falling. The cases were classified based on the Seinsheimer classification. Specifically, five cases were type IIIA, five cases were type IIIB, one case was type IV, and six cases were type V. According to the AO/OTA classification, 10 cases were 32B3, and seven cases were 32C3. During surgery, the patients were placed on a traction bed andattempted closed reduction. For those patients whose closed reduction failed confirmed by fluoroscopy, we performed a small anterolateral incision through which a self-made minimally invasive percutaneous wire introducer (passer; patent Z: 2016 2 1002800.8) was employed for temporary fixation with a wire. A double-stranded steel wire was introduced into a self-made wire traction and lifting device (patent ZL 2020 2 0205658.7), the wire was pulled vertically and firmly fixed. Then an long InterTan nail was used for the fixation. The following information was recorded: (i) length of the invasive incision, (ii) blood loss on the third day after surgery, (iii) operation time; and (iv) maximum displacement and angulation of the fracture ends of the x-rayed front and side fractures before and after surgery and the maximum displacement and formation of the three-dimensional CT-scanned fracture ends in the coronal plane, sagittal plane, and cross section before and after surgery. RESULT A total of 15 of the 17 patients were followed for 12 to 24 months. The 15 patients recovered, but one died from pulmonary infection 1 year after surgery. In the postoperative X-ray and three-dimensional CT observation reduction treatment, fracture displacement was less than 5 mm, each plane angle was less than 10 degrees, and postoperative fracture healing time was 3 to 14 months, with an average of 4.19 ± 4.04 months. The postoperative Harris hip function score ranged from 66 to 95 points, with an average of 80.81 ± 9.67 points. In terms of clinical outcomes, 11 cases were excellent, four cases were satisfactory, and one case was fair. CONCLUSION For refractory subtrochanteric fractures, percutaneous wiring combined with Cephalomedullary nail fixation is a minimally invasive, rapid, and effective method, which can achieve satisfactory results in clinical practice and is worth promoting.
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Affiliation(s)
- Shi-Jie Kang
- Department of Orthopedic Surgery, Qilu Hospital of Shandong University, Qingdao, China
| | - Fei-Long Bao
- Department of Orthopedic Surgery, Qilu Hospital of Shandong University, Qingdao, China
| | - Dong-Sheng Huang
- Department of Orthopedic Surgery, Qilu Hospital of Shandong University, Qingdao, China
| | - Tao Jiang
- Department of Orthopedic Surgery, Qilu Hospital of Shandong University, Qingdao, China
| | - Yi-Ming Hu
- Department of Orthopedic Surgery, Qilu Hospital of Shandong University, Qingdao, China
| | - Jian-Min Li
- Department of Orthopedics, Qilu Hospital of Shandong University, Jinan, China
| | - Tao Liu
- Department of Orthopedic Surgery, Qilu Hospital of Shandong University, Qingdao, China
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Yao ZG, Cheng XK, Lin CH, Li J, Lyu BB, Li JM, Jing HY, Qin YJ, Sun XC. [Genetic analysis of 45 patients with suspected Lynch syndrome using next-generation sequencing]. Zhonghua Zhong Liu Za Zhi 2021; 43:843-849. [PMID: 34407589 DOI: 10.3760/cma.j.cn112152-20190717-00441] [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: 11/05/2022]
Abstract
Objective: To evaluate the value of next generation sequencing (NGS) in the genetic testing of Lynch syndrome. Methods: Immunohistochemical method was used to detect the expressions of DNA mismatch repair (MMR) proteins, including MutL homolog 1 (MLH1), PMS1 homolog 2 (PMS2), MutS homolog 2 (MSH2) and MutS homolog 6 (MSH6) in colorectal cancer, gastric cancer and endometrial cancer tissues collected from Shandong Provincial Hospital between 2016 and 2018. The genomic DNA of 45 patients who were suspected with Lynch syndrome was extracted from non-cancerous tissue paraffin samples, which were postoperatively confirmed by microscope. The mutations of 12 genes including MLH1 and MSH2 were detected using NGS. The germline mutant sites and significance were analyzed by bioinformatics technology and further confirmed by using Sanger sequencing. Results: The immunohistochemical results showed that the 45 cases of suspected Lynch syndrome included 22 cases of MLH1 and PMS2 deficient expression, 16 cases of MLH2 and MSH6 deficient expression, and 7 cases of MMR proteins normal expression. The NGS result showed that 28 cases of adjacent sample from colon cancer patients included 4 cases of MLH1 pathogenic mutation, 1 case of suspected MLH1 mutation, 2 cases of MLH2 pathogenic mutation, 2 cases of suspected MLH2 mutation. No MMR gene mutation was found in adjacent samples of 6 cases of rectal cancer, 6 cases of gastric cancer and 7 cases of colorectal cancer with MMR normal expression. One case of MLH1 or MHL2 pathogenic mutation and one case of MLH1 suspected mutation was detected in adjacent samples of 5 cases of endometrial cancer. Moreover, NGS also detected many other genes mutations and unreported gene mutation sites. Pathogenic and suspected MLH1 and MSH2 mutations were verified by Sanger sequencing. Conclusions: High-throughput NGS is a quick, accurate and reliable technique to identify gene variants in suspected Lynch syndrome patients. It has a wide application prospect for gene testing of tumors associated with Lynch syndrome.
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Affiliation(s)
- Z G Yao
- Department of Pathology, Shandong Provincial Hospital Affiliated to Shandong University, Jinan 250021, China
| | - X K Cheng
- Department of Pathology, Shandong Provincial Hospital Affiliated to Shandong University, Jinan 250021, China
| | - C H Lin
- Department of Pathology, Shandong Provincial Hospital Affiliated to Shandong University, Jinan 250021, China
| | - J Li
- Department of Pathology, Shandong Provincial Hospital Affiliated to Shandong University, Jinan 250021, China
| | - B B Lyu
- Department of Pathology, Shandong Provincial Hospital Affiliated to Shandong University, Jinan 250021, China
| | - J M Li
- Department of Pathology, Shandong Provincial Hospital Affiliated to Shandong University, Jinan 250021, China
| | - H Y Jing
- Department of Pathology, Shandong Provincial Hospital Affiliated to Shandong University, Jinan 250021, China
| | - Y J Qin
- Department of Pathology, Shandong Provincial Hospital Affiliated to Shandong University, Jinan 250021, China
| | - X C Sun
- Department of Pathology, Shandong Provincial Hospital Affiliated to Shandong University, Jinan 250021, China
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30
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Liu Z, Shi F, Liu JX, Liu JQ, Li J, Wang Q, Wang H, Gao CL, Li JM, Zhao DF. Clinical Efficacy of Corticosteroids in the Early Stages of Deterioration in COVID-19 Pneumonia. Infect Drug Resist 2021; 14:2667-2674. [PMID: 34285519 PMCID: PMC8285565 DOI: 10.2147/idr.s314938] [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] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Accepted: 06/24/2021] [Indexed: 01/08/2023] Open
Abstract
Background The World Health Organization (WHO) strongly suggests using corticosteroids in patients with severe coronavirus disease 2019 (COVID-19). Similarly, a large randomized controlled clinical trial (RCT) in the UK found that dexamethasone effectively reduced the mortality rate in severe COVID-19 patients. However, the safety profile of corticosteroids has been a controversial area of study. Case Description A case of a COVID-19 patient is described and the clinical characteristics are observed as the mildly symptomatic patient progresses into a critically ill patient and during their dramatic improvement with corticosteroid therapy in the early stage of the deterioration process with COVID-19 pneumonia. Conclusion The most suitable timing and dosage for the use of corticosteroids to maximize its effect during the worsening of COVID-19 pneumonia are discussed. One of the main pathophysiological hypotheses for severe COVID-19 patients is related to cytokine storm and virus load, which can be effectively treated with corticosteroid therapy.
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Affiliation(s)
- Zheng Liu
- Department of Respiratory Medicine, The Petroleum Clinical Medical College of Hebei Medical University, Langfang, Hebei, 065000, People's Republic of China
| | - Fang Shi
- Department of Respiratory Medicine, The Petroleum Clinical Medical College of Hebei Medical University, Langfang, Hebei, 065000, People's Republic of China
| | - Jun-Xia Liu
- Department of Respiratory Medicine, The Petroleum Clinical Medical College of Hebei Medical University, Langfang, Hebei, 065000, People's Republic of China
| | - Jia-Qi Liu
- Schulich School of Medical and Dentistry-Honour Specialization in Interdisciplinary Medical Science and Major in Pharmacology, Western University, London, Ontario, Canada
| | - Jing Li
- Department of Respiratory Medicine, The Petroleum Clinical Medical College of Hebei Medical University, Langfang, Hebei, 065000, People's Republic of China
| | - Qian Wang
- Department of Respiratory Medicine, The Petroleum Clinical Medical College of Hebei Medical University, Langfang, Hebei, 065000, People's Republic of China
| | - Hui Wang
- Department of Respiratory Medicine, The Petroleum Clinical Medical College of Hebei Medical University, Langfang, Hebei, 065000, People's Republic of China
| | - Chang-Lan Gao
- Department of Critical Care Medicine, Langfang Fourth Hospital, Langfang, Hebei, People's Republic of China
| | - Jian-Min Li
- Department of Respiratory Medicine, The Petroleum Clinical Medical College of Hebei Medical University, Langfang, Hebei, 065000, People's Republic of China
| | - Dong-Fang Zhao
- Department of Respiratory Medicine, The Petroleum Clinical Medical College of Hebei Medical University, Langfang, Hebei, 065000, People's Republic of China
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Huang ZR, Sheng MT, Pan LM, Zhang SZ, Zhu ZL, Wang H, Xu CL, Teng L, He L, Gu C, Yi C, Li JM. [Effects of protein disulfide isomerase on hyperglycemia and hypoxia/reoxygenation injury in H9c2 cardiomyocytes]. Zhonghua Yi Xue Za Zhi 2021; 101:1523-1528. [PMID: 34044521 DOI: 10.3760/cma.j.cn112137-20200926-02724] [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
Objective: To explore the effect of protein disulfide isomerase (PDI) in diabetic ischemic heart disease. Methods: We established an in vitro model of high glucose and hypoxia/reoxygenation in H9c2 rat myocardial cells. Cultured cells were divided into four groups: Control, high glucose (HG), hypoxia/reoxygenation (H/R) and HG+H/R. Changes in PDI expression mediated by PDI adenovirus(Ad-PDI) infection and siRNA(PDI-siRNA) transfection in myocardial cells were observed by inverted fluorescence microscopy. We also measured lactate dehydrogenase(LDH) activity and malondialdehyde(MDA) and high molecular weight(HMW)-APN concentrations. PDI, APN, cleaved caspase-3, and glucose regulated protein 78 (Grp78) protein expression were detected. Results: PDI expression was significantly decreased in the HG, H/R and HG+H/R groups compared to the Control group; however, LDH activity[(179.7±10.4) U/L、(218.4±18.4) U/L、(328.2±5.3) U/L vs (91.0±11.0) U/L], MDA concentration[(7.0±0.4) μmol/L、(10.0±1.0) μmol/L、(11.7±1.0) μmol/L vs (4.2±1.8) μmol/L], cleaved caspase-3, and Grp78 expression were increased. Interestingly, APN and HMW-APN expression were decreased [(2.01±0.21) μg/L、(1.64±0.27) μg/L、(1.20±0.14) μg/L vs (2.62±0.12) μg/L, all P<0.05]. Over expression of PDI attenuated high glucose and hypoxia/reoxygenation induced apoptosis and oxidative stress in H9c2 cardiomyocytes(all P<0.05), and simultaneously increased APN and HMW-APN expression [(2.86±0.03) μg/L vs (3.03±0.10) μg/L、(2.06±0.05) μg/L vs (2.31±0.06) μg/L、(1.83±0.07) μg/L vs (1.96±0.11) μg/L、(1.20±0.06) μg/L vs (1.39±0.09) μg/L]. PDI-siRNA transfection increased LDH activity, MDA concentration, and cleaved caspase-3 and Grp78 expression, and decreased APN and HMW-APN expression [(0.75±0.09) μg/L vs (0.59±0.09) μg/L、(0.62±0.04) μg/L vs (0.53±0.05) μg/L、(0.55±0.14) μg/L vs (0.51±0.12) μg/L、(0.48±0.12) μg/L vs (0.35±0.08) μg/L] in response to different treatments in cultured H9c2 cardiomyocytes (all P<0.05). Conclusion: PDI may regulate the expression of APN and HMW-APN, and play an important role in the function of diabetic ischemia-reperfusion cardiomyocytes.
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Affiliation(s)
- Z R Huang
- The People's Hospital of Three Gorges University/the First People's Hospital of Yichang, Yichang 443000, China
| | - M T Sheng
- The People's Hospital of Three Gorges University/the First People's Hospital of Yichang, Yichang 443000, China
| | - L M Pan
- The People's Hospital of Three Gorges University/the First People's Hospital of Yichang, Yichang 443000, China
| | - S Z Zhang
- China Three Gorges University, Yichang 443000, China
| | - Z L Zhu
- The People's Hospital of Three Gorges University/the First People's Hospital of Yichang, Yichang 443000, China
| | - H Wang
- China Three Gorges University, Yichang 443000, China
| | - C L Xu
- The People's Hospital of Three Gorges University/the First People's Hospital of Yichang, Yichang 443000, China
| | - L Teng
- the First College of Clinical Medical Sciences of Three Gorges University/Central People's Hospital of Yichang, Yichang 443000, China
| | - L He
- The People's Hospital of Three Gorges University/the First People's Hospital of Yichang, Yichang 443000, China
| | - C Gu
- The People's Hospital of Three Gorges University/the First People's Hospital of Yichang, Yichang 443000, China
| | - C Yi
- the First College of Clinical Medical Sciences of Three Gorges University/Central People's Hospital of Yichang, Yichang 443000, China
| | - J M Li
- The People's Hospital of Three Gorges University/the First People's Hospital of Yichang, Yichang 443000, China
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Xie Y, Liu JB, Li JM, Zhang C, Lu CX, Wen ZJ. [Silence of circBANP increases radiosensitivity of colorectal cancer cells and inhibits growth of subcutaneous xenografts by up-regulating miR-338-3p expression]. Zhonghua Zhong Liu Za Zhi 2021; 43:533-540. [PMID: 34034472 DOI: 10.3760/cma.j.cn112152-20200519-00460] [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] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the effect of circBANP on radiosensitivity of colorectal cancer cells and subcutaneous transplanted tumor in nude mice and its potential molecular mechanism. Methods: The carcinoma and adjacent normal mucosal tissues of 20 patients with colorectal cancer who were surgically resected in Henan People's Hospital from January 2018 to January 2019 were selected. The radio-resistant colorectal cancer cell LoVo/R was established. Real-time quantitative polymerase chain reaction (RT-qPCR) was used to detect the expressions of circBANP and miR-338-3p. The radiation sensitivity was determined by cell clone formation experiment. Cell vitality was detected by using methyl thiazolyl tetrazolium (MTT). The expressions of autophagy-related protein microtubule-associated protein light chain 3 (LC3) and p62 were detected by western blot. The fluorescence intensity of LC3 in cells was detected by immunofluorescence assay. The downstream microRNAs (miRNAs) of circBANP were predicted by Circular RNA Interactome website and further verified by dual luciferase reporter gene assay. The transplanted tumor model of LoVo/R cells in nude mice was established, and the effect of circBANP on the growth of transplanted tumor after radiation was observed. Results: The expression levels of circBANP and miR-338-3p in colorectal cancer tissues were 3.21+ 0.29 and 0.47+ 0.04, respectively, which were significantly higher than 1.00+ 0.07 and 1.00+ 0.05 in adjacent tissues (P<0.05). The circBANP expression level of LoVo/R cells was 3.21±0.34, higher than 1.00±0.07 of LoVo cells (P<0.05), and the expression level of miR-338-3p of LoVo/R cells was 0.33±0.04, lower than 1.00±0.08 of LoVo cells (P<0.05). After 4 Gy irradiation, compared with the control group, the viability of LoVo/R cells in the circBANP silencing group [(34±4)% vs (62±6)%, P<0.05], the cell survival fraction (0.07±0.02 vs 0.27±0.04, P<0.05) were decreased, and the radiation sensitization ratio was 1.843, the expression of LC3Ⅱ/Ⅰin LoVo/R cells increased while p62 expression decreased, the cell autophagy was observed. Autophagy inhibitor chloroquine reversed the increased expression of LC3Ⅱ/Ⅰ and inhibited expression of p62 in LoVo/R cells induced by radiation, and promoted the suppression of cell viability and survival induced by radiation, the radiotherapy sensitization ratio was 1.780. Compared with control group after 4 Gy irradiation, the relative fluorescence intensity of LC3 in circBANP silencing LoVo/R cells decreased (0.11±0.01 vs 1.00±0.12, P<0.05), the expression of LC3-Ⅱ/Ⅰdecreased (1.25±0.13 vs 3.84±0.39, P<0.05) while p62 expression increased (2.76±0.29 vs 1.00±0.08, P<0.05). As predicted by Circular RNA Interactome website and confirmed by double luciferase reporter gene assay, miR-338-3p was the target gene of circBANP. The relative fluorescence intensity of LC3 in circBANP silencing + anti-miR-338-3p + 4 Gy group increased (7.32±0.72 vs 1.00±0.09, P<0.05), the expression level of LC3-Ⅱ/Ⅰ increased (4.13±0.43 vs 2.31±0.23, P<0.05) while p62 expression decreased (0.34±0.03 and 1.00±0.11, P<0.05), the radiotherapy sensitization ratio was 0.596. Nude mice subcutaneously transplanted tumor experiment showed that the tumor volume and weight of circBANP silencing group on 13, 16, 19, 22, 25, 28, and 31 days were lower than those of control group (P<0.05), while the tumor volume and weight of circBANP silencing + anti-miR-338-3p group on days of 13, 16, 19, 22, 25, 28 and 31 after inoculated were higher than those of circBANP+ anti-miR-NC group (P<0.05). Conclusions: CircBANP can regulate the radiosensitivity of colorectal cancer cells by regulating the expression of miR-338-3p, and affect the growth of transplanted tumor in nude mice. CircBANP may be a potential target for enhancing radiosensitivity of colorectal cancer cells.
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Affiliation(s)
- Y Xie
- Department of Gastrointestinal Surgery, Henan People's Hospital, Zhengzhou 450000, China
| | - J B Liu
- Department of Oncology, Henan People's Hospital, Zhengzhou 450000, China
| | - J M Li
- Department of Gastrointestinal Surgery, Henan People's Hospital, Zhengzhou 450000, China
| | - C Zhang
- Department of Gastrointestinal Surgery, Henan People's Hospital, Zhengzhou 450000, China
| | - C X Lu
- Department of Oncology, Henan People's Hospital, Zhengzhou 450000, China
| | - Z J Wen
- Department of Radiotherapy, Henan People's Hospital, Zhengzhou 450000, China
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Abstract
BACKGROUND Ankle syndesmosis injury is difficult to diagnose accurately at the initial visit. Missed diagnosis or improper treatment can lead to chronic complications. Complete syndesmosis injury with a concomitant rupture of the interosseous membrane (IOM) is more unstable and severe. The relationship between this type of injury and Maisonneuve injury, in which the syndesmosis is also injured, has not been discussed in the literature previously.
CASE SUMMARY A 16-year-old patient sustained left medial malleolar fracture, and the associated inferior tibiofibular syndesmotic instability was overlooked. After open reduction and internal fixation of the medial malleolar fracture, inferior tibiofibular syndesmosis diastasis with IOM rupture was detected by auxiliary imaging. Secondary surgical intervention was performed to reduce anatomically and fix with two trans-syndesmosis screws. Twelve weeks later, the screws were removed. At the 6-mo follow-up, the patient gained full range of motion of the ankle.
CONCLUSION Complete syndesmosis injury with IOM rupture should be considered Maisonneuve-type injury. Open reduction and internal fixation could obtain good outcomes.
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Affiliation(s)
- Guang-Ping Liu
- Department of Orthopedics, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan 250012, Shandong Province, China
- Department of Orthopedics, Zibo Central Hospital, Shandong University, Zibo 255000, Shandong Province, China
| | - Ji-Gang Li
- Department of Orthopedics, Zibo Central Hospital, Shandong University, Zibo 255000, Shandong Province, China
| | - Xiao Gong
- Department of Radiology, Zibo Central Hospital, Shandong University, Zibo 255000, Shandong Province, China
| | - Jian-Min Li
- Department of Orthopedics, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan 250012, Shandong Province, China
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Hu Y, Jin J, Zhang Y, Hu JD, Li JM, Wei XD, Gao SJ, Zha JH, Jiang Q, Wu J, Mendes W, Wei AH, Wang JX. [Venetoclax with low-dose cytarabine for patients with untreated acute myeloid leukemia ineligible for intensive chemotherapy: results from the Chinese cohort of a phase three randomized placebo-controlled trial]. Zhonghua Xue Ye Xue Za Zhi 2021; 42:288-294. [PMID: 33979972 PMCID: PMC8120118 DOI: 10.3760/cma.j.issn.0253-2727.2021.04.004] [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] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the safety and efficacy of venetoclax with low-dose cytarabine (LDAC) in Chinese patients with acute myeloid leukemia (AML) who are unable to tolerate intensive induction chemotherapy. Methods: Adults ≥ 18 years with newly diagnosed AML who were ineligible for intensive chemotherapy were enrolled in this international, randomized, double-blind, placebo-controlled trial. Globally, patients (n=211) were randomized 2∶1 to either venetoclax with LDAC or placebo with LDAC in 28-d cycles, with LDAC on days 1-10. The primary endpoint was OS; the secondary endpoints included response rates, event-free survival, and adverse events. Results: A total of 15 Chinese patients were enrolled (venetoclax arm, n=9; placebo arm, n=6) . The median age was 72 years (range, 61-86) . For the primary analysis, the venetoclax arm provided a 38% reduction in death risk compared with the placebo[hazard ratio (HR) , 0.62 (95%CI 0.12-3.07) ]. An unplanned analysis with an additional 6 months of follow-up demonstrated a median OS of 9.0 months for venetoclax compared with 4.1 months for placebo. The complete remission (CR) rates with CR with incomplete blood count recovery (CRi) were 3/9 (33%) and 0/6 (0%) , respectively. The most common non-hematologic adverse effects (venetoclax vs placebo) were hypokalemia[5/9 (56%) vs 4/6 (67%) ], vomiting[4/9 (44%) vs 3/6 (50%) ], constipation[2/9 (22%) vs 4/6 (67%) ], and hypoalbuminemia[1/9 (11%) vs 4/6 (67%) ]. Conclusion: Venetoclax with LDAC demonstrated meaningful efficacy and a manageable safety profile in Chinese patients consistent with the observations from the global VIALE-C population, making it an important treatment option for patients with newly diagnosed AML who are otherwise ineligible for intensive chemotherapy.
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Affiliation(s)
- Y Hu
- Union Hospital Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - J Jin
- The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou 310003, China
| | - Y Zhang
- Nanfang Hospital of Southern Medical University, Guangzhou 510515, China
| | - J D Hu
- Fujian Medical University Union Hospital, Fuzhou 350001, China
| | - J M Li
- Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - X D Wei
- The Affiliated Cancer Hospital of Zhengzhou University, Henan Cancer Hospital, Zhengzhou 450008, China
| | - S J Gao
- The First Hospital of Jilin University, Changchun 130021,China
| | - J H Zha
- AbbVie, Inc., Mettawa, Illinois, USA
| | - Q Jiang
- AbbVie, Inc., Mettawa, Illinois, USA
| | - J Wu
- AbbVie, Inc., Mettawa, Illinois, USA
| | - W Mendes
- AbbVie, Inc., Mettawa, Illinois, USA
| | - A H Wei
- The Alfred Hospital and Monash University, Melbourne, Victoria, Australia
| | - J X Wang
- Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin 300020, China
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Xie Y, Liu JB, Li JM, Zhang C, Lu CX, Wen ZJ. [Effects of silencing circRNA ABCB10 expression on biological properties of colorectal cancer cells]. Zhonghua Zhong Liu Za Zhi 2021; 43:449-456. [PMID: 33902207 DOI: 10.3760/cma.j.cn112152-20200116-00040] [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: 11/05/2022]
Abstract
Objective: To investigate the expression of circular ribonucleic acid ABCB10 (circABCB10) in colorectal cancer tissues and cells and its effects on cell biological behavior, radiosensitivity and growth of subcutaneous xenografts. Methods: The tumor tissue and adjacent tissue from colorectal cancer patients treated in Henan People's Hospital were collected from January 2018 to December 2018. Quantitative polymerase chain reaction (qPCR) was used to detect the expressions of circABCB10 and miR-217, cell viability was detected by 3-(4, 5-dimethyl-2-thiazolyl)-2, 5-diphenyl-2H tetrazolium bromide (MTT), cell apoptosis rate was detected by flow cytometry, cell migration and invasion were detected by Transwell method, cell radiosensitivity was detected by colony formation assay. The downstream miRNAs of circABCB10 were predicted by Circular RNA Interactome and verified by the dual luciferase reporter gene experiment. The effect of circABCB10 on the growth of transplanted tumor was examined in nude mice. Results: The expression level of circABCB10 mRNA in colorectal cancer tissues was (3.97±2.12), higher than (1.13±0.64) in adjacent tissues (P<0.05). The expression level of circABCB10 mRNA in FHC cells was (1.00±0.09), lower than that (4.53±0.44) in SW480, (3.12±0.32) in HCT116 and (3.51±0.36) in HT29 cells, respectively (all P<0.05). The MTT results showed that the absorbance values of SW480 cells in si-circABCB10-1 group at 48 and 72 hours after transfection were (0.36±0.04) and (0.43±0.04), lower than (0.48±0.05) and (0.82±0.08) in circ-negative control (NC) group, respectively (all P<0.05). The number of migrating cells and invasive cells in si-circABCB10-1 group were (45±8) and (34±7), lower than (106±21) and (84±15) in circ-NC group, respectively (all P<0.01). The radiosensitization ratio was 1.632. The results of subcutaneous transplantation assay showed that the tumor volume and tumor weight of the si-circABCB10-1 group were significantly lower than circ-NC group after 8 days of inoculation ( all P<0.05). MiR-217 is a target gene of circABCB10. Inhibition of miR-217 reversed the inhibitory effect of circABCB10 silencing on cell proliferation, migration, invasion and subcutaneous xenograft growth in nude mice and the radiosensitization activity. Conclusion: Silence of circABCB10 can up-regulate the expression of miR-217 to inhibit the proliferation, migration, invasion and growth of subcutaneous xenografts and increase the radiosensitivity of SW480 cells, which reveals the underlying molecular mechanism of colorectal cancer progression and provides a new sensitizing target for clinical radiotherapy of colorectal cancer.
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Affiliation(s)
- Y Xie
- Deparment of Gastrointestinal Surgery, Henan People's Hospital, Zhengzhou 450000, China
| | - J B Liu
- Department of Oncology, Henan People's Hospital, Zhengzhou 450000, China
| | - J M Li
- Deparment of Gastrointestinal Surgery, Henan People's Hospital, Zhengzhou 450000, China
| | - C Zhang
- Deparment of Gastrointestinal Surgery, Henan People's Hospital, Zhengzhou 450000, China
| | - C X Lu
- Department of Oncology, Henan People's Hospital, Zhengzhou 450000, China
| | - Z J Wen
- Department of Radiotherapy, Henan People's Hospital, Zhengzhou 450000, China
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Shi JP, Tan P, Li JM, Zhang R. [Application analysis of noninvasive prenatal testing for fetal chromosome copy number variations in Chinese laboratories]. Zhonghua Yi Xue Za Zhi 2021; 101:1088-1092. [PMID: 33878837 DOI: 10.3760/cma.j.cn112137-20210125-00238] [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
Objective: To investigate the general situation, detection range, testing reagents, and clinical performance of non-invasive prenatal testing (NIPT) for fetal chromosomal copy number variations (CNVs) in Chinese laboratories. Methods: The National Center for Clinical Laboratories of the National Health Commission designed a questionnaire for the detection of CNVs by NIPT, which included the investigation of whether the laboratory has carried out NIPT to detect CNVs and its testing scope, reagents/platforms, intended uses, screening populations and clinical performance. The questionnaires were distributed to 355 laboratories in 31 provinces, autonomous regions, and municipalities across the country on October, 2020. Further, the feedbacks were statistical analyzed. Results: Two hundred and twenty-eight laboratories had performed NIPT to detect CNVs, including 116 types of CNVs, and more than 95% of laboratories chose to detect the CNVs of 5p15 deletion, 22q11.2 deletion, 1p36 deletion, and 15q11.2 deletion. All testing reagents used were laboratory-developed tests and were based on massive parallel sequencing, the minimum amount of sequencing data was 3-15 M reads, the detection limit of fetal fraction was 3%-5%, and the minimum size of variants that can be detected was 1-5 Mb. The proportion of laboratories that apply CNVs testing for daily project, voluntary requirements of patients, and scientific research were 58.8% (134/228), 57.5% (131/228), and 20.6% (47/228), respectively. One hundred and thirty-four laboratories were fully or partially aware of the clinical performance of NIPT to detect microdeletion/microduplication syndromes, and the laboratories' declared sensitivity of NIPT for Cri du Chat syndrome, 22q11.2 deletion syndrome, 1p36 deletion syndrome, and Angelman syndrome were 50.0%-100%, 60.0%-100%, 50.0%-100%, and 33.3%-100%, and the positive predictive values were 9.0%-50.0%, 18.0%-100%, 20.0%-30.0%, and 20.0%. Conclusion: The detection of CNVs by NIPT in Chinese laboratories need to be standardized. Laboratories should detect CNVs with clear clinical significance in accordance with the guidelines, conduct performance validation of the reagents, then perform NIPT test and provide adequate interpretation after mastering the clinical performance sufficiently.
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Affiliation(s)
- J P Shi
- Peking University Fifth School of Clinical Medicine, National Center for Clinical Laboratories, Beijing Hospital, National Center of Gerontology; Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - P Tan
- National Center for Clinical Laboratories, Beijing Hospital, National Center of Gerontology; Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - J M Li
- Peking University Fifth School of Clinical Medicine, National Center for Clinical Laboratories, Beijing Hospital, National Center of Gerontology; Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - R Zhang
- Peking University Fifth School of Clinical Medicine, National Center for Clinical Laboratories, Beijing Hospital, National Center of Gerontology; Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing 100730, China
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Zhang R, Wu QS, Li JM. [Pay close attention to personnel training in molecular laboratories for hematological neoplasms]. Zhonghua Yi Xue Za Zhi 2021; 101:904-907. [PMID: 33789372 DOI: 10.3760/cma.j.cn112137-20201110-03046] [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
There has consistently growing value of molecular detection to deliver clinical results for diagnosis, classification, prognosis, curative effect prediction and monitoring minimal residual disease of hematological neoplasms. Currently, some clinical laboratories are adopting hematological neoplasms-associated molecular detection in in our country. The increasing demands for clinical testing require that the particular attention need to be paid to the building of the team of professional staff. At present, it is vital to cultivate two kinds of specialized personnel: the technical personnel who are educated in clinical medicine and skilled in developing molecular tests; and the trained managers who are adept at quality control for molecular testing.
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Affiliation(s)
- R Zhang
- National Center for Clinical Laboratories, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing 100730,China
| | - Q S Wu
- Division of Pathology and Laboratory Medicine, Beijing Ludaopei Hospital, Beijing 100176, China
| | - J M Li
- National Center for Clinical Laboratories, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing 100730,China
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Chen LJ, Li JM, Zhang WD, Liu W, Li XY, Ouyang B, Tan JL, Li Y, Chen JC, Liu ZG. LncRNA NEAT1 activates MyD88/NF-κB pathway in bronchopneumonia through targeting miR-155-5p. Autoimmunity 2021; 54:104-113. [PMID: 33719773 DOI: 10.1080/08916934.2021.1891534] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
BACKGROUND Bronchopneumonia is a disease of the respiratory tract. It leads to other complications and endangers life and health. Long non-coding RNA (lncRNA) participates in the occurrence and development of bronchopneumonia. Nuclear paraspeckle assembly transcript 1 (NEAT1) plays a key role in inflammatory diseases, but the function of NEAT1 in bronchopneumonia remains unclear. METHODS RT-qPCR and Western blotting were performed to determine genes and proteins expressions. MTT was applied to test cell viability. Cell apoptosis was detected by flow cytometry. RIP was used to investigate the correlation between NEAT1 and miR-155-5p. The interaction between miR-155-5p and NEAT1 or MyD88 was evaluated by the dual-luciferase reporter gene. RESULTS NEAT1 and MyD88 were upregulated in BEAS-2B cells by LPS, while miR-155-5p was downregulated. Knockdown of NEAT1 inhibited LPS-induced BEAS-2B cells growth inhibition by inhibiting the apoptosis. In addition, NEAT1 silencing suppressed LPS-induced inflammatory responses in BEAS-2B cells via suppression of TNF-α, IL-1β, IL-6, and IL-18. Meanwhile, NEAT1 is directly bound to miR-155-5p to regulate MyD88/NF-κB axis, and overexpression of miR-155-5p increased cell proliferation and suppressed inflammatory factors expression levels and cell apoptosis. Furthermore, sh-NEAT1-induced inhibition of BEAS-2B cells injury was partially reversed by miR-155-5p inhibitor or MyD88 overexpression. CONCLUSION NEAT1 silencing suppressed LPS-induced BEAS-2B cells injury and inflammation by the mediation of miR-155-5p/MyD88/NF-κB axis. Thus, our study might shed new light on exploring the new strategies for the treatment of bronchopneumonia.
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Affiliation(s)
- Ling-Jia Chen
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Hunan Normal University, Hunan Provincial People's Hospital, Changsha, P. R. China
| | - Jian-Min Li
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Hunan Normal University, Hunan Provincial People's Hospital, Changsha, P. R. China
| | - Wei-Dong Zhang
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Hunan Normal University, Hunan Provincial People's Hospital, Changsha, P. R. China
| | - Wei Liu
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Hunan Normal University, Hunan Provincial People's Hospital, Changsha, P. R. China
| | - Xiu-Ying Li
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Hunan Normal University, Hunan Provincial People's Hospital, Changsha, P. R. China
| | - Bin Ouyang
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Hunan Normal University, Hunan Provincial People's Hospital, Changsha, P. R. China
| | - Jian-Long Tan
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Hunan Normal University, Hunan Provincial People's Hospital, Changsha, P. R. China
| | - Yun Li
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Hunan Normal University, Hunan Provincial People's Hospital, Changsha, P. R. China
| | - Jiang-Chuan Chen
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Hunan Normal University, Hunan Provincial People's Hospital, Changsha, P. R. China
| | - Zhi-Guang Liu
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Hunan Normal University, Hunan Provincial People's Hospital, Changsha, P. R. China
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Li JM, Yang MF, He ZX. [Application value of radionuclide myocardial blood flow quantitative imaging in evaluating coronary microvascular dysfunction]. Zhonghua Xin Xue Guan Bing Za Zhi 2020; 48:1073-1077. [PMID: 33355753 DOI: 10.3760/cma.j.cn112148-20200426-00349] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Affiliation(s)
- J M Li
- Department of Nuclear Medicine, TEDA International Cardiovascular Hospital, Tianjin 300457, China
| | - M F Yang
- Department of Nuclear Medicine, Beijing Chaoyang Hospital, Capital Medical University, Beijing 100020, China
| | - Z X He
- Department of Nuclear Medicine, Beijing Tsinghua Changgung Hospital, School of Clinical Medicine, Tsinghua University, Beijing 102218, China
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Wang YD, Chen WQ, Li Y, Li JM, Zhang J. [Related risk factors of PET/CT detected coronary microvascular disease in patients with chest pain and no obstructive coronary artery disease]. Zhonghua Xin Xue Guan Bing Za Zhi 2020; 48:942-947. [PMID: 33210866 DOI: 10.3760/cma.j.cn112148-20200409-00298] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Objective: To explore the related factors of the coronary microvascular disease (CMD) diagnosed with positron emission tomography(PET)/CT in patients with chest pain and without obstructive coronary artery disease (NOCA). Methods: This study was a single-center retrospective cross-sectional study. Consecutive patients with chest pain and NOCA on coronary angiography, who underwent PET/CT quantitative myocardial blood flow measurements at TEDA International Cardiovascular Hospital from August 2018 to January 2019, were enrolled for this study. The diagnostic criteria for NOCA was the absence of coronary artery diameter stenosis ≥50% on coronary angiography. Clinical data, global left ventricular myocardial blood flow on stress and rest, and the coronary flow reserve (CFR) were analyzed. Patients were divided into two groups according to CFR. Patients with CFR<2 were defined as CMD group, and the rest were classified as control group. Pearson correlation analysis and Logistics regression analysis were used for exploring the risk factors of the CMD. Results: A total of 66 patients, with an mean age of (56.7±9.6) years, were included in the study, including 41 females (62%). There were 20 patients with CMD (30%). Body mass index (BMI) was significantly higher in CND group than in control group ((28.1±3.6) kg/m2 vs. (25.6±3.5) kg/m2, P=0.01). Total cholesterol (TC) and low density lipoprotein cholesterol (LDL-C) were also significantly higher in CMD group than in control group ((4.89±1.03) mmol/L vs. (4.30±1.02) mmol/L and (3.23±0.81) mmol/L vs. (2.71±0.95) mmol/L respectively, P=0.038). Pearson correlation analysis showed that CFR was moderately correlated with BMI (r=-0.45, P<0.001), and was weakly correlated with TC and LDL-C (r=-0.271 and r=-0.280, respectively, P<0.05). Multivariate logistic regression analysis showed that BMI (the risk of CMD increased by 1.528 times for every 5 kg/m2 increase in BMI, 95%CI 1.083-5.897, P<0.05) was an independent risk factor of CMD after adjusted by gender, hypertension, diabetic mellites and LDL-C. Conclusion: For patients with NOCA and chest pain, high BMI is independent risk factor of CMD diagnosed by PET/CT.
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Affiliation(s)
- Y D Wang
- Department of Cardiology, TEDA International Cardiovascular Hospital and Tianjin Medical University Cardiovascular Clinical Institute, Tianjin 300457, China
| | - W Q Chen
- Department of Cardiology, TEDA International Cardiovascular Hospital and Tianjin Medical University Cardiovascular Clinical Institute, Tianjin 300457, China
| | - Y Li
- Department of Cardiology, Chengde Medical College, Chengde 067000, China
| | - J M Li
- Department of Nuclear Medicine, TEDA International Cardiovascular Hospital and Tianjin Medical University Cardiovascular Clinical Institute, Tianjin 300457, China
| | - J Zhang
- Department of Cardiology, TEDA International Cardiovascular Hospital and Tianjin Medical University Cardiovascular Clinical Institute, Tianjin 300457, China
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Liu ZB, Liu XH, Zhou T, Zhang SY, Li JM, Yang Q. [Effect of Temperature on Performance and Microbial Community Structure of Anaerobic Biofilter-Treated Domestic Wastewater]. Huan Jing Ke Xue 2020; 41:4141-4149. [PMID: 33124296 DOI: 10.13227/j.hjkx.202001014] [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: 11/22/2022]
Abstract
Municipal wastewater methanogenesis is one of the ways to utilize municipal wastewater resources.In this study, a biofilter used to treat actual municipal wastewater was employed to investigate the methanogenesis in a pilot-scale reactor. The method of rapid start-up, the influence of temperature on the reactor performance, and the changes in the microbial structure were investigated in the pilot-scale study. The rapid start-up of the biofilter reactor was achieved by the combination of intermittent and continuous operations. The effluent concentration of SCOD was 60 mg ·L-1at the stable operation stage. The biofilter was operated steadily at a temperature higher than 14℃, the accumulation of volatile fatty acids (VFA) was low, and the effluent concentrations of SCOD and TCOD were 69 mg ·L-1and 90 mg ·L-1, respectively. In addition, the metabolism of hydrolysis and methanogenesis tended to balance off under such conditions. However, the abundance of microorganisms that can hydrolyze organic matter and produce methane decreased. The abundance of Peptostreptococcaceae increased even the temperature was lower than 10℃, which typically increases VFA production. Therefore, the concentrations of effluent VFA and TCOD increased, but methane production decreased. The effluent concentration of SCOD was relatively stable. The microbial abundance and diversity were the richest at 19℃ in the reactor. The acetolactic methanogens were the dominant methanogens at low temperatures. The anaerobic biological filter for the treatment of urban sewage starts quickly and can resist the impact of continuous temperature reduction. Moreover, it does not need backwashing after running for nine months, and it is not easily clogged.Therefore,the functions of biological contact oxidation and filtration retention of the biological filter can be more fully utilized.
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Affiliation(s)
- Zhi-Bin Liu
- Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, Beijing University of Technology, Beijing 100122, China
| | - Xiu-Hong Liu
- Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, Beijing University of Technology, Beijing 100122, China
| | - Tong Zhou
- Research and Development Center of Beijing Drainage Group Technology, Beijing 100122, China
| | - Shi-Yong Zhang
- Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, Beijing University of Technology, Beijing 100122, China
| | - Jian-Min Li
- Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, Beijing University of Technology, Beijing 100122, China
| | - Qing Yang
- Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, Beijing University of Technology, Beijing 100122, China
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Zhang K, Li JM. [The importance of establishing genotype and phenotype database of Chinese population for accurate diagnosis of genetic diseases]. Zhonghua Yi Xue Za Zhi 2020; 100:3041-3044. [PMID: 33105956 DOI: 10.3760/cma.j.cn112137-20200520-01594] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Affiliation(s)
- K Zhang
- National Center for Clinical Laboratories, Beijing Hospital, National Center of Gerontology, Beijing 100730
| | - J M Li
- National Center for Clinical Laboratories, Beijing Hospital, National Center of Gerontology, Beijing 100730
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Wang BB, Ye JR, Li YL, Jin Y, Chen ZW, Li JM, Li YP. Multisystem involvement Langerhans cell histiocytosis in an adult: A case report. World J Clin Cases 2020; 8:4966-4974. [PMID: 33195668 PMCID: PMC7642549 DOI: 10.12998/wjcc.v8.i20.4966] [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] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/06/2020] [Revised: 05/26/2020] [Accepted: 08/25/2020] [Indexed: 02/05/2023] Open
Abstract
BACKGROUND Langerhans cell histiocytosis (LCH) is a rare condition wherein Langerhans cells proliferate abnormally, adversely impacting organs including lymph nodes, bones, skin, lungs, and pituitary gland. The LCH disease course varies widely among patients from a self-limiting condition to one that progresses rapidly and culminates in death. It is uncommon for multisystem LCH to be observed in adults. Herein we describe a woman suffering from multi-system LCH involvement.
CASE SUMMARY A 37-year old Chinese woman was admitted to the hospital in June 2019 suffering from dyspnea that had progressed over the course of 5 years. Her medical history included: central diabetes insipidus (DI) that had been treated via radiotherapy, desmopressin acetate, and bromocriptine; bilateral pneumothorax with two surgeries having been performed to remove bullae; and autoimmune hepatitis that had been unsuccessfully treated using a combination of methylprednisolone and mycophenolate mofetil. A chest computed tomography (CT) scan revealed the presence of multiple pulmonary cysts of varying sizes. We re-analyzed right pulmonary bullae samples that had been removed in 2014, performed a systematic 18F-FDG PET/CT analysis, and convened a multidisciplinary medical team to diagnose and treat this patient. As a result, we were able to eventually diagnose this patient with LCH that was not associated with BRAF-V600E mutations.
CONCLUSION We hope to emphasize the importance of systemic evaluation and of cooperation between multidisciplinary physicians with the goal of improving awareness and detection of this orphan disease.
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Affiliation(s)
- Bei-Bei Wang
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, Zhejiang Province, China
| | - Jun-Ru Ye
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, Zhejiang Province, China
| | - Yun-Lei Li
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, Zhejiang Province, China
| | - Yi Jin
- Pathology Department, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, Zhejiang Province, China
| | - Zhong-Wei Chen
- Radiology Department, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, Zhejiang Province, China
| | - Jian-Min Li
- Pathology Department, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, Zhejiang Province, China
| | - Yu-Ping Li
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, Zhejiang Province, China
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Ye YT, Li JM. [Role and mechanism of lipid metabolism-related receptors in the formation of tb-related foam macrophages]. Zhonghua Jie He He Hu Xi Za Zhi 2020; 43:804-807. [PMID: 32894916 DOI: 10.3760/cma.j.cn112147-20200619-00650] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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45
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Gao YJ, Li JM. [Application and progress of proteomics in the screening of diagnostic markers for tuberculosis]. Zhonghua Jie He He Hu Xi Za Zhi 2020; 43:688-691. [PMID: 32727183 DOI: 10.3760/cma.j.cn112147-20190926-00649] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
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Zheng PM, Gao HJ, Li JM, Zhang P, Li G. [Effect of exosome-derived miR-223 from macrophages on the metastasis of gastric cancer cells]. Zhonghua Yi Xue Za Zhi 2020; 100:1750-1755. [PMID: 32536099 DOI: 10.3760/cma.j.cn112137-20200425-01309] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the effect and mechanism of exosome-derived miR-223 from macrophage on gastric cancer (GC) cell metastasis. Methods: Exosomes isolated from macrophages culture medium were characterized and cocultured with GC cell, the miRNA level was detected by qRT-PCR. The migration and invasion of GC cell were detected by transwell. The internalization of exosomes, transfer of miR-223 was observed by immunofluorescence. Macrophage were transfected with a miR-223 inhibitor or negative control, transwell and scratch test were employed to explore the effect of macrophage derived exosome on the migration and invasion of GC cell. Western blot and RT-PCR assay were performed to uncover the underlying mechanisms of miR-223 and PTEN-PI3K/AKT pathway. Results: This study showed that macrophage and macrophage-derived exosomes promoted the migration and invasion of gastric cancer cell(253.2±6.3, 451.8±12.8, 453.4±14.4, all P<0.01, and 98.4±5.1, 276.5±10.3, 257.3±8.5, all P<0.01, respectively). miR-223 was enriched in macrophage-derived exosomes, which was transferred to the co-cultivated gastric cancer cells. miR-223 knockdown in macrophage reversed the migration and invasion of exosomes on gastric cancer cells(215.6±9.2, 402.5±11.6, 253.7±10.4, all P<0.01, and 91.5±8.2,263.4±9.3,105.8±9.3,all P<0.01, respectively).Functional studies revealed that exosomal miR-223 derived from macrophage promoted the metastasis of GC cells via the PTEN-PI3K/AKT pathway. In addition, itshowed thatthe actin cytoskeleton was altered, and multiple proteins associated with epithelial-mesenchymaltransition (EMT) were upregulated. Conclusion: Exosomal transfer of macrophage-derived miR-223 promote the metastasis of GC cells through targeting the PTEN-PI3K/AKT pathway.
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Affiliation(s)
- P M Zheng
- Department of Clinical Laboratory, Henan Provincial People's Hospital; Zhengzhou University People's Hospital, Henan University People's Hospital, Zhengzhou 450003, China
| | - H J Gao
- Department of Oncology, the First Affiliated Hospital of Henan University, Kaifeng 475000, China
| | - J M Li
- Department of Gastrointestinal surgery, Henan Provincial People's Hospital; Zhengzhou University People's Hospital, Henan University People's Hospital, Zhengzhou 450003, China
| | - P Zhang
- Department of Gastrointestinal surgery, Henan Provincial People's Hospital; Zhengzhou University People's Hospital, Henan University People's Hospital, Zhengzhou 450003, China
| | - G Li
- Department of Clinical Laboratory, Henan Provincial People's Hospital; Zhengzhou University People's Hospital, Henan University People's Hospital, Zhengzhou 450003, China
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Li JM, Ma XR, Peng T, Li JH, Lu H. [Clinical features and outcomes in relapsing and monophasic patients with anti-leucine-rich glioma-inactivated 1 encephalitis]. Zhonghua Yi Xue Za Zhi 2020; 100:1947-1951. [PMID: 32629594 DOI: 10.3760/cma.j.cn112137-20200330-01001] [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] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Objective: To analyze the differences of clinical characteristics and outcomes between relapsing and monophasic patients with anti-leucine-rich glioma-inactivated 1 (anti-LGI1) encephalitis. Methods: Medical records of confirmed anti-LGI1 encephalitic patients who underwent immunotherapy were retrospectively collected from January 2015 to January 2019 in the first affiliated hospital of Zhengzhou University. Clinical data, treatment methods, duration of treatment and outcomes were analyzed between the relapsing and monophasic groups. Results: Among the 33 anti-LGI1 encephalitic patients, there were 12 and 21 cases in the relapsing and monophasic groups, respectively. No difference was found in age, sex, precipitating factors, intensive care unit (ICU) admission, symptoms and modified Rankin Scale (mRS) score in the acute phase (P>0.05). As to the lab test and image examination, no statistic difference was found in serum and cerebral spinal fluid (CSF) positive rate, hyponatremia, abnormal rate of electrocardiogram (ECG), electroencephalogram (EEG), CSF and magnetic resonance imaging (MRI) and lesion locations (P>0.05). No difference was found in time to diagnose the disease between the 2 groups (P>0.05). The median immunotherapy period was 102.5 days in relapsing group and 194.0 days in monophasic group, with a statistic difference (P=0.001). No patients had bad outcomes in the monophasic group at the last follow-up, while 6 patients had poor outcomes in the relapsing group (4 patients died). The patients in relapsing group had a worse prognosis compared to those in the monophasic group (P=0.007). Conclusions: Relapse is common in anti-LGI1 encephalitis. Patients in the relapsing group received a shorter term of immunotherapy and had worse outcomes than those in the monophasic group.
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Affiliation(s)
- J M Li
- Department of Neurology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - X R Ma
- Department of Neurology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - T Peng
- Department of Neurology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - J H Li
- Laboratory of Neurology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - H Lu
- Department of Neurology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
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Yan ZY, Wang Y, Liu ZY, Li JM, Sun HM, Chen Y, Zhang SJ. [Chronic myelomonocytic leukemia treated with ruxolitinib: a case report]. Zhonghua Xue Ye Xue Za Zhi 2020; 40:622. [PMID: 28810340 PMCID: PMC7342278 DOI: 10.3760/cma.j.issn.0253-2727.2017.07.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Z Y Yan
- Department of Hematology, North Hospital of Ruijin Hospital Affiliated to Medical College of Shanghai Jiaotong University, Shanghai 200000, China
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Li QX, Zhao XJ, Li XN, Fu AJ, Zhang YH, Chen T, Liu TJ, Zheng FX, Li JM. Application of intraoperative electrophysiological monitoring in vertebral canal decompression surgery for acute spinal cord injury. J Int Med Res 2020; 48:300060520924205. [PMID: 32567443 PMCID: PMC7309396 DOI: 10.1177/0300060520924205] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
OBJECTIVE This study aimed to evaluate the joint monitoring of somatosensory evoked potentials (SEPs) and motor evoked potentials (MEPs) in vertebral canal decompression surgery for acute spinal cord injury. METHODS Twenty-four patients, who were admitted to the hospital for the surgical treatment of spinal cord injury with SEP and MEP monitoring, were assigned to the intraoperative monitoring group (group I). In addition, 24 patients who were admitted to the hospital for the surgical treatment of spinal cord injury without SEP or MEP monitoring were assigned to the control group (group C). RESULTS In group I, there were significant changes before and after decompression surgery in the P40 latency and amplitude, and in the latency of MEP in the abductor hallucis brevis (AHB), in patients with improved spinal nerve function following surgery. In contrast, there were no significant differences in the P40 latency or amplitude, or the latency of MEP in the AHB, in patients who showed no improvement after surgery. CONCLUSION In vertebral canal decompression surgery for acute spinal cord injury, the application of joint MEP and SEP monitoring can timely reflect changes in spinal cord function.
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Affiliation(s)
- Qun-Xi Li
- Department of Neurosurgery, Affiliated Hospital of North China University of Science and Technology, Tangshan, China
| | - Xiao-Jing Zhao
- Department of Neurology, Affiliated Hospital of North China University of Science and Technology, Tangshan, China
| | - Xiang-Nan Li
- Department of Neurosurgery, Affiliated Hospital of North China University of Science and Technology, Tangshan, China
| | - Ai-Jun Fu
- Department of Neurosurgery, Affiliated Hospital of North China University of Science and Technology, Tangshan, China
| | - Yun-He Zhang
- Department of Neurosurgery, Affiliated Hospital of North China University of Science and Technology, Tangshan, China
| | - Tong Chen
- Department of Neurosurgery, Affiliated Hospital of North China University of Science and Technology, Tangshan, China
| | - Tie-Jun Liu
- Department of Anesthesiology, Affiliated Hospital of North China University of Science and Technology, Tangshan, China
| | - Fu-Xia Zheng
- Department of Neurology, Affiliated Hospital of North China University of Science and Technology, Tangshan, China
| | - Jian-Min Li
- Department of Neurosurgery, Affiliated Hospital of North China University of Science and Technology, Tangshan, China
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Liu YF, Li JM, Zhou PH, Liu J, Dong XC, Lyu J, Zhang Y. [Analysis on cluster cases of COVID-19 in Tianjin]. Zhonghua Liu Xing Bing Xue Za Zhi 2020; 41:653-656. [PMID: 32213269 DOI: 10.3760/cma.j.cn112338-20200225-00165] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To understand the characteristics of clusters of COVID-19 cases in Tianjin, and provide epidemiological evidence for the prevention and control of COVID-19. Methods: The data of all the COVID-19 cluster cases in Tianjin, reported by 22 February 2020, were collected to analyze the characteristics of different types of the clusters. Results: A total of 115 COVID-19 cases were reported in 33 clusters in Tianjin included 28 family clusters (71 cases), 1 work place cluster (10 cases), 3 transport vehicle clusters (8 cases) and 1 public place cluster (26 cases). Family clusters were caused by the cases from the working place or public place clusters. Numbers of secondary cases of family clusters was between 1 to 7, the median number was 2. The interval from onset to diagnosis for the first case was longer than those of other cases in the familial clusters (Z=-2.406, P=0.016). The median of incubation period of the public place clusters was 2 days. The intervals from onset to diagnosis were significant different among the family, working place and public place clusters (H=8.843, P=0.012), and also significant differences in onset time among the secondary cases (H=16.607, P=0.000). Conclusions: In the surveillance of COVID-19 epidemic, special attention should be paid to places where clustering are prone to occur, and the epidemiological investigation should be carried out timely to confirm the cluster. To prevent the transmission of COVID-19, the close contacts of the patients should be transferred to an assigned observation place on time for single room isolation. The awareness of COVID-19 prevention is low in some rural areas, reflected by many mass gathering activities and delayed medical care seeking after onset. It is necessary to strengthen the health education and take control measures in early period of epidemic.
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Affiliation(s)
- Y F Liu
- Tianjin Centers for Diseases Control and Prevention, Tianjin 300011, China
| | - J M Li
- Tianjin Centers for Diseases Control and Prevention, Tianjin 300011, China
| | - P H Zhou
- Tianjin Centers for Diseases Control and Prevention, Tianjin 300011, China
| | - J Liu
- Tianjin Centers for Diseases Control and Prevention, Tianjin 300011, China
| | - X C Dong
- Tianjin Centers for Diseases Control and Prevention, Tianjin 300011, China
| | - J Lyu
- Tianjin Centers for Diseases Control and Prevention, Tianjin 300011, China
| | - Y Zhang
- Tianjin Centers for Diseases Control and Prevention, Tianjin 300011, China
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