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Guo Q, Liu J, Dou X, Zhu K, Shi P, Zhang Y, Li S, Feng R, Yue J. Camrelizumab with Chemoradiotherapy for Locally Advanced Biliary Tract Cancer: Preliminary Results from A Phase II Study. Int J Radiat Oncol Biol Phys 2023; 117:e355. [PMID: 37785226 DOI: 10.1016/j.ijrobp.2023.06.2434] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) For locally advanced biliary tract cancer (BTC), capecitabine-based chemoradiotherapy (CRT) is commonly used but has limited benefits. Immunotherapy is potentially effective for BTC and may be synergized with CRT. Followed by gemcitabine and cisplatin (GP) consolidation chemotherapy (CT), we evaluated the safety and efficacy of combined camrelizumab and capecitabine-based CRT for locally advanced BTC. MATERIALS/METHODS Patients had stage II-III (T4N0M0, T1-4N+M0) BTC (per the 7th [2010] edition of the American Joint Committee on Cancer staging system) were eligible for CRT (capecitabine plus [50-60 Gy] radiotherapy), to be followed by GP CT. Camrelizumab was given concurrently with CRT. Safety was defined as the incidence and severity of adverse events (AEs), while efficacy was defined as overall survival (OS), progression-free survival (PFS), objective response rate (ORR) and disease control rate (DCR). RESULTS Ten patients completed the planned treatment. None experienced grade ≥3 treatment-related AEs during CRT. Grade ≥3 immune-related AEs occurred in 2 of 10 patients (20%) only during GP CT. The mean OS time was 18.2 months (95% confidence interval [CI] 12.9m-23.5m) while the median OS time was 14.1 months (95% CI 10.1m-18.1m). OS rates were 100%, 59%, 44% at 6 months, 1 year and 2 years, respectively. The ORR was 30% while the DCR was 90%. Two patients (20%) obtained OS over 2 years with partial response (25.9m, 29.1m). Median PFS time was 14.1 months (95% CI 9.3m-18.9m). CONCLUSION Camrelizumab in combination with concurrent CRT was well tolerated and did not impair delivery of CRT in patients with locally advanced BTC.
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Affiliation(s)
- Q Guo
- Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China; Shandong Cancer Hospital affiliated to Shandong First Medical University, Jinan, Shandong, China
| | - J Liu
- Shandong Cancer Hospital affiliated to Shandong First Medical University, Jinan, Shandong, China
| | - X Dou
- Shandong Cancer Hospital affiliated to Shandong First Medical University, Jinan, Shandong, China
| | - K Zhu
- Shandong Cancer Hospital affiliated to Shandong First Medical University, Jinan, Shandong, China
| | - P Shi
- Shandong Cancer Hospital affiliated to Shandong First Medical University, Jinan, Shandong, China
| | - Y Zhang
- Shandong Cancer Hospital affiliated to Shandong First Medical University, Jinan, Shandong, China
| | - S Li
- Shandong Cancer Hospital affiliated to Shandong First Medical University, Jinan, Shandong, China
| | - R Feng
- Shandong Cancer Hospital affiliated to Shandong First Medical University, Jinan, Shandong, China
| | - J Yue
- Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China; Shandong Cancer Hospital affiliated to Shandong First Medical University, Jinan, Shandong, China
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Cai HZ, Zhuge LD, Huang ZH, Shi P, Wang SX, Zhao BH, An CM, Niu LJ, Li ZJ. [Risk factors of occult lymph node metastasis of levels Ⅲ and Ⅳ in papillary thyroid carcinoma]. Zhonghua Zhong Liu Za Zhi 2023; 45:692-696. [PMID: 37580275 DOI: 10.3760/cma.j.cn112152-20221202-00804] [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: 08/16/2023]
Abstract
Objective: To investigate the potential risk factors for occult lateral cervical lymph node metastasis (LNM) to levels Ⅲ and Ⅳ in patients with papillary thyroid carcinoma (PTC) and the necessity of super-selective lateral lymph node dissection for patients harboring these metastases. Methods: This prospective study included PTC patients who were operated by the same surgeon in the Department of Head and Neck Surgery of Cancer Hospital, Chinese Academy of Medical Sciences from October 2015 through October 2019. Preoperative ultrasound and enhanced Computer Tomography (CT) did not denote suspected enlarged lymph nodes in the lateral neck. All patients underwent lymph node dissection in levels Ⅲ and Ⅳ on the basis of original thyroid collar incision after LNM to level Ⅵ was confirmed by preoperative fine needlebiopsy or intraoperative frozen pathology. Results: Of all 143 patients, 74 (51.7%) had occult LNM in levels Ⅲ and Ⅳ confirmed by postoperative pathology. The average number of metastasized lymph nodes in levels Ⅲ and Ⅳ was 2.64±1.80, and that in level Ⅵ was 3.77±3.27. There was a significant linear positive correlation between the number of metastasized lymph nodes in level Ⅵ and that in levels Ⅲ and Ⅳ (r=0.341, P<0.001). That the metastasized lymph nodes in level Ⅵ equals three was the best predictor of occult lateral LNM to levels Ⅲ and Ⅳ. Univariate analysis showed that age <55 years, tumor size ≥2.0 cm, number of metastasized lymph nodes in level Ⅵ ≥3, and percentage of metastasized lymph nodes in the total number of dissected lymph nodes in level Ⅵ >50% were associated with occult LNM in levels Ⅲ and Ⅳ (P<0.05). Multivariate analysis showed that number of metastasized lymph nodes in level Ⅵ≥3 was an independent risk factor for occult LNM in levels Ⅲ and Ⅳ (P=0.006). Conclusions: Age, tumor size and LNM in level Ⅵ were associated with occult lateral LNM in PTC patients. Lymph node dissection in levels Ⅲ and Ⅳ could be considered for selective patients, since it will help to avoid secondary operation for residual tumor or recurrence resulted from insufficient treatment without increasing the incidence of complications or affecting patients' appearances.
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Affiliation(s)
- H Z Cai
- Department of Head and Neck Surgery, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - L D Zhuge
- Department of Head and Neck Surgery, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - Z H Huang
- Department of Head and Neck Surgery, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - P Shi
- Department of Ear-Nose-Throat, Hebei Medical University Forth Hospital, Shijiazhuang 050011, China
| | - S X Wang
- Department of Head and Neck Surgery, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - B H Zhao
- Department of Head and Neck Surgery, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Shenzhen Center, Chinese Academy of Medical Sciences and Peking Union Medical College, Shenzhen 518116, China
| | - C M An
- Department of Head and Neck Surgery, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - L J Niu
- Department of Ultrasound, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - Z J Li
- Department of Head and Neck Surgery, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
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Zheng XX, Shi P, Feng HL, Lyu R, Xu CJ, Chen ZW. [Current status and research advances on catheter-associated urinary tract infection in burn patients]. Zhonghua Shao Shang Yu Chuang Mian Xiu Fu Za Zhi 2023; 39:581-585. [PMID: 37805775 DOI: 10.3760/cma.j.cn501225-20220904-00378] [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: 10/09/2023]
Abstract
Catheter-associated urinary tract infection (CAUTI) is one of the common nosocomial infections in burn patients. It not only extends the length of hospital stay of patients, increases the economic burden on family and society, but also seriously affects the prognosis and quality of life of patients, increases the risk of death of patients. In this paper, the epidemiological characteristics, influencing factors, and prevention measures of CAUTI in burn patients are reviewed to draw high attention of clinical medical staff and to provide some reference for clinical practice.
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Affiliation(s)
- X X Zheng
- School of Nursing, Huzhou University, Huzhou 313000, China
| | - P Shi
- School of Nursing, Huzhou University, Huzhou 313000, China
| | - H L Feng
- School of Nursing, Huzhou University, Huzhou 313000, China
| | - R Lyu
- School of Nursing, Huzhou University, Huzhou 313000, China
| | - C J Xu
- Nursing Department, the Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou 310009, China
| | - Z W Chen
- Department of Neurosurgery, the Fourth Affiliated Hospital of Zhejiang University School of Medicine, Yiwu 322000, China
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Zhang YH, Li F, Zhou YY, Shi P, Cao LF, Wang JS, Shen J. [Characteristics of plasma Epstein-Barr virus DNA in children with primary infection]. Zhonghua Er Ke Za Zhi 2023; 61:245-249. [PMID: 36849352 DOI: 10.3760/cma.j.cn112140-20220825-00752] [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: 03/01/2023]
Abstract
Objective: To explore the characteristics of plasma Epstein-Barr virus (EBV) DNA in primary infection in pediatric cases. Methods: The laboratory and clinical data of 571 children diagnosed with EBV primary infection in Children's Hospital of Fudan University during September 1st, 2017 to September 30th, 2018 were retrospectively analyzed. According to the results of plasma EBV DNA, they were divided into positive group and negative group. According to the EBV DNA, they were devided into high plasma virol load group and low plasma virol load group. The Chi-square test, Wilcoxon rank sum test were used to compare the differences between groups. Results: Among the 571 children with EBV primary infection, 334 were males and 237 were females. The age of first diagnosis was 3.8 (2.2, 5.7) years. There were 255 cases in positive group and 316 cases in negative group. The percentage of cases with fever,hepatomegaly and (or) splenomegaly, elevated transaminase in the positive group were higher than those in the negative group (235 cases (92.2%) vs. 255 cases (80.7%), χ2=15.22, P<0.001; 169 cases (66.3%) vs. 85 cases (26.9%), χ2=96.80, P<0.001; and 144 cases (56.5%) vs. 120 cases (38.0%), χ2=18.27, P<0.001; respectively).In the positive group, 70 cases were followed up for 46 (27, 106) days, 68 cases (97.1%) turned negative within 28 days, with the exception of 2 cases (2.9%) developed chronic active EBV infection by follow-up revision.There were 218 cases in high plasma viral DNA copies group and 37 cases in low copies group. More cases presented with elevated transaminases in the high plasma viral DNA copies group than those in the low group (75.7% (28/37) vs. 56.0%(116/207), χ2=5.00, P=0.025).Both the positive rate of EBV DNA in peripheral blood leukocytes (84.2% (266/316) vs. 44.7% (255/571), χ2=76.26, P<0.001) and the copies of EBV DNA (7.0×107 (1.3×107, 3.0×108) vs. 3.1×106 (1.6×106, 6.1×106) copies /L, Z=15.23, P<0.001) were higher than that of plasma. Conclusions: In immunocompetent pediatric cases diagnosed as EBV primary infection, cases with positive plasma EBV DNA were prone to have fever, hepatomegaly and (or) splenomegaly, and elevated transaminase than those with negative plasma viral DNA. The plasma EBV DNA usually turns negative within 28 days after initial diagnosis.Most cases with high viral load in plasma showed elevated aminotransferase.
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Affiliation(s)
- Y H Zhang
- Department of Infectious Disease, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai 201102, China
| | - F Li
- Department of Infectious Disease, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai 201102, China
| | - Y Y Zhou
- Department of Infectious Disease, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai 201102, China
| | - P Shi
- Clinical Research Unit, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai 201102, China
| | - L F Cao
- Department of Virology, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai 201102, China
| | - J S Wang
- Department of Infectious Disease, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai 201102, China
| | - J Shen
- Department of Infectious Disease, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai 201102, China
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Zhu DQ, Shi P, Shen J, Chen YW, Li F. [Clinical characteristics of anomalous aortic origin of a coronary artery in children]. Zhonghua Er Ke Za Zhi 2023; 61:240-244. [PMID: 36849351 DOI: 10.3760/cma.j.cn112140-20221031-00925] [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: 03/01/2023]
Abstract
Objective: To analyze the clinical characteristics, diagnosis and treatment of anomalous aortic origin of a coronary artery (AAOCA) in children. Methods: There were 17 children diagnosed with AAOCA from January 2013 to January 2022 in Shanghai Children's Medical Center, Shanghai Jiao Tong University School of Medicine.Their clinical manifestations, laboratory and imaging data, treatment and prognosis were retrospectively analyzed. Results: These 17 children included 14 males and 3 females, with the age of (8.7±3.5) years. There were 4 anomalous left coronary artery (ALCA) and 13 anomalous right coronary artery (ARCA). Seven children presented with chest pain or chest pain after exercise, three patients presented with cardiac syncope, one complained chest tightness and weakness, and the other six patients had no specific symptoms. Cardiac syncope and chest tightness occurred in patients with ALCA. Fourteen children had the dangerous anatomical basis of myocardial ischemia caused by coronary artery compression or stenosis on imaging. Seven children had coronary artery repair, of whom two were ALCA and five were ARCA. One patient had received heart transplantation because of heart failure. The incidence of adverse cardiovascular events and poor prognosis in ALCA group was higher than that in ARCA group (4/4 vs. 0/13, P<0.05). They were followed up in the outpatient department regularly for 6 (6, 12) months; except for the one who lost visit, the rest of the patients had a good prognosis. Conclusions: Cardiogenic syncope or cardiac insufficiency usually occurs in ALCA, and adverse cardiovascular events and poor prognosis are more common in ALCA than in ARCA. Early surgical treatment should be considered for children with ALCA and ARCA accompanied by myocardial ischemia.
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Affiliation(s)
- D Q Zhu
- Department of Pediatric Cardiology, Shanghai Children's Medical Center, Shanghai Jiao Tong University School of Medicine, Shanghai 200127, China
| | - P Shi
- Department of Pediatric Cardiology, Shanghai Children's Medical Center, Shanghai Jiao Tong University School of Medicine, Shanghai 200127, China
| | - J Shen
- Department of Pediatric Cardiology, Shanghai Children's Medical Center, Shanghai Jiao Tong University School of Medicine, Shanghai 200127, China
| | - Y W Chen
- Department of Pediatric Cardiology, Shanghai Children's Medical Center, Shanghai Jiao Tong University School of Medicine, Shanghai 200127, China
| | - F Li
- Department of Pediatric Cardiology, Shanghai Children's Medical Center, Shanghai Jiao Tong University School of Medicine, Shanghai 200127, China
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Zhang D, Ma C, Shi P, Yang Z, Rong T, Xiong L, Liao W. Controllable Preparation of Highly Crystalline Sulfur-Doped Π-Conjugated Polyimide Hollow Nanoshell for Enhanced Photocatalytic Performance. Polymers (Basel) 2023; 15:polym15040903. [PMID: 36850187 PMCID: PMC9964284 DOI: 10.3390/polym15040903] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Revised: 02/07/2023] [Accepted: 02/09/2023] [Indexed: 02/16/2023] Open
Abstract
In this study, a series of highly crystalline π-conjugated polyimide photocatalysts with porous nano hollow shell (HSPI) was prepared for the first time by the hard template method by adjusting the addition ratio of the template precursor. SiO2 nanospheres not only serve as template agents but also as dispersants to make precursors of SPI more uniform, and the degree of polymerization will be better, resulting in significantly enhanced crystallinity of HSPI relative to bulk SPI (BSPI). More strikingly, it is found that HSPI has a larger specific surface area, stronger visible light absorption, and higher separation efficiency of photogenerated electron and hole pairs compared with BSPI by various spectral means characterization analysis. These favorable factors significantly enhanced the photocatalytic degradation of methyl orange (MO) by HSPI. This work provides a promising approach for the preparation of cheap, efficient, environmentally friendly, and sustainable photocatalysts.
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Affiliation(s)
- Duoping Zhang
- School of Chemical Engineering, Qinghai University, Xining 810016, China
| | - Chenghai Ma
- School of Chemical Engineering, Qinghai University, Xining 810016, China
- Correspondence:
| | - Peidong Shi
- School of Chemical Engineering, Qinghai University, Xining 810016, China
| | - Zuan Yang
- School of Chemical Engineering, Qinghai University, Xining 810016, China
| | - Tongwei Rong
- Department of New Energy (Photovoltaic) Industry Research Center, Qinghai University, Xining 810016, China
| | - Liurui Xiong
- School of Chemical Engineering, Qinghai University, Xining 810016, China
| | - Wenhui Liao
- School of Chemical Engineering, Qinghai University, Xining 810016, China
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Lu YW, Shi P, Sun JY, Zhang ZY. Changes in physical activity behavior in children and adolescents: a systematic review and meta-analysis based on a trans-theoretical model. Eur Rev Med Pharmacol Sci 2022; 26:8860-8872. [PMID: 36524505 DOI: 10.26355/eurrev_202212_30558] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
OBJECTIVE This article presents a systematic review and meta-analysis of cross-sectional studies of physical activity (PA) behavioral changes in children and adolescents based on the trans-theoretical model (TTM). The main purpose is to test the rationality of TTM and the secondary purpose is to analyze whether PA can effectively identify the stages of change. MATERIALS AND METHODS The databases CNKI, Wan-Fang, VIP, WOS, PubMed, and EBSCO were searched by computer. Two researchers independently reviewed the literature, extracted data, and evaluated the quality of the literature. Stata 23.0 software was used for statistical analysis. RESULTS A total of 17 articles of medium and high quality were included in the meta-analysis. First, the behavior changes of PA of children and adolescents are related to the process of change (POC), self-efficacy (SEI), and decisional balance (DBL). The POC, SEI, and DBL have obvious stage characteristics. Second, with increasing intensity of PA, the degree of discrimination of stage of change (SOC) also improved, but PA could not still fully distinguish each stage. CONCLUSIONS It is suggested that follow-up studies should compare the stages of change of different criteria by comprehensive behavioral data, exercise willingness, and exercise habits. Furthermore, it is recommended that more studies use longitudinal surveys or experimental interventions to test the rationality of TTM. It is suggested that the follow-up study design more standardized measurement tools to explore the change in PA behavior of children and adolescents.
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Affiliation(s)
- Y-W Lu
- Medical College of Jiaying University, Meizhou, China.
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Shi P, Cheng YP, Li ZY, Wang SP, Shi YZ, Ji YM, Fang L, Zhao JJ, Gao L, Xu C. [Identification and functional analysis of combined oxidative phosphorylation deficiency 28 gene mutation]. Zhonghua Nei Ke Za Zhi 2022; 61:1324-1329. [PMID: 36456512 DOI: 10.3760/cma.j.cn112138-20211208-00875] [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: 06/17/2023]
Abstract
Objective: To report a case of combined oxidative phosphorylation deficiency 28 (COXPD28) in China, identified the pathogenic mutation and explored the pathogenic mechanism preliminarily. Methods: The clinical characteristics of a patient with COXPD28 were retrospectively analyzed and the pathogenic mutations were identified by mitochondrial gene sequencing and whole exome sequencing. The wild-type and mutant plasmids of pathogenic genes were constructed, and effect of mutation on protein expression by quantitative real-time PCR (qPCR) and Western blot were evaluated. Statistical methods mainly used one-way ANOVA and LSD test. Results: A 21 year old female patient presented with lactic acid poisoning due to repeated chest distress and wheezing since childhood. The sequencing of the whole exon group gene found that solute carrier family 25 member 26 (SLC25A26) gene had a compound heterozygous mutation (c.34G>C, p.A12P; c.197C>A, p.A66E), which was the first report in China. In vitro function test showed that the expression levels of SLC25A26 mRNA and S-adenosylmethionine carrier (SAMC) protein in cells transfected with SLC25A26 mutant plasmid were significantly lower than those transfected with wild type plasmid. The p.A66E mutant plasmid reduced the expression level of SLC25A26 mRNA and SAMC protein to 6% and 26% of wild type plasmids respectively (both P<0.001), while p.A12P mutant plasmid decreased to 62% and 82% of wild type plasmids respectively (P<0.001, P=0.044). When the double mutant (p.A66E+p.A12P) plasmids were co-transfected, the expression levels of SLC25A26 mRNA and SAMC protein decreased to 47% and 57% of the wild type plasmids, respectively (P<0.001, P=0.001). Conclusion: The pathogenic mutation gene of this patient with COXPD28 is SLC25A26 gene mutation (p.A66E, p.A12P), which causes the decrease of SLC25A26 expression level, mitochondrial oxidative phosphorylation dysfunction, and induces COXPD28.
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Affiliation(s)
- P Shi
- Shandong University, Jinan 250021, China Department of Endocrinology, Shandong Provincial Hospital, Shandong Key Laboratory of Endocrinology and Lipid Metabolism, Jinan 250021, China
| | - Y P Cheng
- Shandong University, Jinan 250021, China Department of Endocrinology, Shandong Provincial Hospital, Shandong Key Laboratory of Endocrinology and Lipid Metabolism, Jinan 250021, China
| | - Z Y Li
- Department of Endocrinology, Shandong Provincial Hospital, Shandong Key Laboratory of Endocrinology and Lipid Metabolism, Jinan 250021, China
| | - S P Wang
- Department of Endocrinology, the People's Hospital of Dongying City, Dongying 257091, China
| | - Y Z Shi
- Shandong University, Jinan 250021, China Department of Endocrinology, Shandong Provincial Hospital, Shandong Key Laboratory of Endocrinology and Lipid Metabolism, Jinan 250021, China
| | - Y M Ji
- Department of Endocrinology, Shandong Provincial Hospital, Shandong Key Laboratory of Endocrinology and Lipid Metabolism, Jinan 250021, China
| | - L Fang
- Department of Endocrinology, Shandong Provincial Hospital, Shandong Key Laboratory of Endocrinology and Lipid Metabolism, Jinan 250021, China
| | - J J Zhao
- Department of Endocrinology, Shandong Provincial Hospital, Shandong Key Laboratory of Endocrinology and Lipid Metabolism, Jinan 250021, China
| | - L Gao
- Department of Endocrinology, Shandong Provincial Hospital, Shandong Key Laboratory of Endocrinology and Lipid Metabolism, Jinan 250021, China
| | - C Xu
- Shandong University, Jinan 250021, China Department of Endocrinology, Shandong Provincial Hospital, Shandong Key Laboratory of Endocrinology and Lipid Metabolism, Jinan 250021, China
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Rhodes TL, Michael CA, Shi P, Scannell R, Storment S, Pratt Q, Lantsov R, Fitzgerald I, Hall-Chen VH, Crocker NA, Peebles WA. Design elements and first data from a new Doppler backscattering system on the MAST-U spherical tokamak. Rev Sci Instrum 2022; 93:113549. [PMID: 36461471 DOI: 10.1063/5.0101848] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/03/2022] [Accepted: 09/25/2022] [Indexed: 06/17/2023]
Abstract
A new Doppler backscattering (DBS) system has been installed and tested on the MAST-U spherical tokamak. It utilizes eight simultaneous fixed frequency probe beams (32.5, 35, 37.5, 40, 42.5, 45, 47.5, and 50 GHz). These frequencies provide a range of radial positions from the edge plasma to the core depending on plasma conditions. The system utilizes a combination of novel features to provide remote control of the probed density wavenumber, the launched polarization (X vs O-mode), and the angle of the launched DBS to match the magnetic field pitch angle. The range of accessible density turbulence wavenumbers (kθ) is reasonably large with normalized wavenumbers kθρs ranging from ≤0.5 to 9 (ion sound gyroradius ρs = 1 cm). This wavenumber range is relevant to a variety of instabilities believed to be important in establishing plasma transport (e.g., ion temperature gradient, trapped electron, electron temperature gradient, micro-tearing, kinetic ballooning modes). The system is specifically designed to address the requirement of density fluctuation wavevector alignment which can significantly reduce the SNR if not accounted for.
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Affiliation(s)
- T L Rhodes
- Physics and Astronomy Department, University of California, Los Angeles, California 90098, USA
| | - C A Michael
- Physics and Astronomy Department, University of California, Los Angeles, California 90098, USA
| | - P Shi
- UKAEA/CCFE, Culham Science Centre, Abingdon, Oxfordshire, OX14 3DB, UK
| | - R Scannell
- UKAEA/CCFE, Culham Science Centre, Abingdon, Oxfordshire, OX14 3DB, UK
| | - S Storment
- Physics and Astronomy Department, University of California, Los Angeles, California 90098, USA
| | - Q Pratt
- Physics and Astronomy Department, University of California, Los Angeles, California 90098, USA
| | - R Lantsov
- Physics and Astronomy Department, University of California, Los Angeles, California 90098, USA
| | - I Fitzgerald
- UKAEA/CCFE, Culham Science Centre, Abingdon, Oxfordshire, OX14 3DB, UK
| | - V H Hall-Chen
- Institute of High Performance Computing, Singapore 138632, Singapore
| | - N A Crocker
- Physics and Astronomy Department, University of California, Los Angeles, California 90098, USA
| | - W A Peebles
- Physics and Astronomy Department, University of California, Los Angeles, California 90098, USA
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Li J, Liu S, Zhang Y, Dong J, Kong W, Shi P. Impact of impurities on drift wave instabilities in reversed-field pinch plasmas. Phys Rev E 2022; 106:045203. [PMID: 36397586 DOI: 10.1103/physreve.106.045203] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2022] [Accepted: 09/22/2022] [Indexed: 06/16/2023]
Abstract
The drift wave in the presence of impurity ions was investigated numerically in reversed-field pinch plasmas, using the gyrokinetic integral eigenmode equation. By comparing the results of regular and hollow plasma density profiles, it was found that the ion temperature gradient mode for the hollow density profile case is much harder to excite. For the impurity effects, when the impurity density gradient is opposite to the electrons, namely when L_{ez} (L_{ez}=L_{ne}/L_{nz} with 1/L_{n} being the density gradient scale length, and the subscript "e" and "z" indicates electrons and impurity ions, respectively) is negative, the impurities can enhance the instability. On the contrary, when L_{ez} is positive, the instability is stabilized. Regarding the trapped electron mode (TEM), the growth rate for plasmas with a hollow density profile remains smaller than that of the standard density gradient. There exists a threshold in L_{ez}. When L_{ez} is less than this value, the impurities destabilize the TEMs, while when L_{ez} is greater than this value, the impurities stabilize the TEMs. In addition, the influence of the collisionality on the TEMs was also studied.
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Affiliation(s)
- Jingchun Li
- Department of Earth and Space Sciences, Southern University of Science and Technology, 518055 Shenzhen, Guangdong, People's Republic of China
| | - Songfen Liu
- School of Physics, Nankai University, Tianjin 300071, People's Republic of China
| | - Yilong Zhang
- School of Physics, Nankai University, Tianjin 300071, People's Republic of China
| | - Jiaqi Dong
- ENN Science and Technology Development Co., Ltd., Langfang 065001, China
| | - Wei Kong
- College of Science, Civial Aviation University of China, Tianjin 300300, People's Republic of China
| | - P Shi
- United Kingdom Atomic Energy Authority, Culham Centre for Fusion Energy, Culham Science Centre, Abingdon, Oxon OX14 3DB, United Kingdom
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Ma T, Hao L, Shi P, Qiu M, Liang M, Sun YF, Shi YF. [Clinical outcomes of transoral endoscopic thyroidectomy vestibular approach assisted with submental mini-incision for early thyroid papillary carcinoma]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2022; 57:986-990. [PMID: 36058667 DOI: 10.3760/cma.j.cn115330-20210901-00590] [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 efficacy of transoral endoscopic thyroidectomy vestibular approach (TOETVA) assisted with submental mini-incision in early thyroid papillary carcinoma. Methods: A total of 63 patients with early papillary thyroid carcinoma (cT1N0M0) were included who underwent TOETVA from December 2019 to May 2021 in Department of Thyroid Surgery of the Affiliated Hospital of Jining Medical University. There were 4 males and 59 females, aged from 17 to 46 years old. Of those 36 patients received traditional TOETVA as control and 27 patients accepted modified TOETVA assisted with submental mini-incision. The clinical outcomes of patients in two groups were compared. Chi-square test and t test were used in statistical analyses. Results: Compared to control group, modified TOETVA group had the less mean operation time [(146.63±38.62) minutes vs. (167.78±36.71) minutes, t=-2.21, P=0.031], the shorter time required for returning to normal diet after operation [(2.11±0.89) days vs. (2.72±1.16) days, t=-2.28, P=0.026], and the lower probability of mandibular numbness (0 vs. 16.67%, χ2=4.97, P=0.026). There was no significant difference between two groups in intraoperative blood loss, postoperative drainage volume, number of central lymph nodes dissection, and postoperative complications such as gas embolism, postoperative bleeding, postoperative infection, skin burns, subcutaneous effusion and so on(all P>0.05). After 6 months of operation, the thyroid ultrasound of the patients in two groups showed no recurrence, and the patients were satisfied with their surgical incision appearances. Conclusion: Both the modified and traditional TOETVA show similar efficacies for treatments of early thyroid papillary carcinoma, but the modified TOETVA can reduce the operation time and improve the quality of life.
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Affiliation(s)
- T Ma
- Department of Thyroid Surgery, the Affiliated Hospital of Jining Medical University, Jining 272000, China
| | - L Hao
- Department of Thyroid Surgery, the Affiliated Hospital of Jining Medical University, Jining 272000, China
| | - P Shi
- Department of Thyroid Surgery, the Affiliated Hospital of Jining Medical University, Jining 272000, China
| | - M Qiu
- Department of Thyroid Surgery, the Affiliated Hospital of Jining Medical University, Jining 272000, China
| | - M Liang
- Department of Thyroid Surgery, the Affiliated Hospital of Jining Medical University, Jining 272000, China
| | - Y F Sun
- Department of Thyroid Surgery, the Affiliated Hospital of Jining Medical University, Jining 272000, China
| | - Y F Shi
- Department of Thyroid Surgery, the Affiliated Hospital of Jining Medical University, Jining 272000, China
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12
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Zhu X, Huang H, Zhang H, Zhang Y, Shi P, Qu K, Cheng SB, Wang AL, Lu Q. Filling Mesopores of Conductive Metal-Organic Frameworks with Cu Clusters for Selective Nitrate Reduction to Ammonia. ACS Appl Mater Interfaces 2022; 14:32176-32182. [PMID: 35802788 DOI: 10.1021/acsami.2c09241] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
The electrocatalytic nitrate reduction reaction (NO3-RR) to ammonia (NH3) under ambient conditions not only has the benefit of lowering energy consumption, but also helps remove nitrate contamination. Inspired by the unique structure of nitrate/nitrite reductase with the active spheroproteins encapsulated by larger enzymes, herein, we develop an in situ synthetic strategy for the construction of metal cluster-conductive metal-organic framework (MOF) composite electrocatalysts. The metallic Cu clusters are filled into the mesopores of a conductive copper-based MOF (i.e., CuHHTP); meanwhile, CuHHTP with a porous structure provides an internal environment to limit the growth of metallic Cu clusters with an ultrasmall size (i.e., 1.5 ± 0.2 nm) and restrains their aggregation. The obtained Cu@CuHHTP exhibits superb performance for NO3-RR. In a neutral electrolyte with 500 ppm NO3-, Cu@CuHHTP shows a high NO3- conversion of 85.81% and a selectivity for NH3 of 96.84%. 15N isotope labeling experiments confirm that the formation of NH3 originates from the process of NO3-RR. Theoretical calculations confirm that Cu clusters are the active sites in the composite electrocatalysts, in which the proper d-band center and the "accept-donate" mechanism in charge transfer are the key factors for the improvement of the electrocatalytic performance.
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Affiliation(s)
- Xiaojuan Zhu
- Key Laboratory for Colloid and Interface Chemistry, Ministry of Education, State Key Laboratory of Crystal Materials, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, Shandong, China
- Suzhou Research Institute, Shandong University, Suzhou 215123, Jiangsu, China
| | - Haicai Huang
- Key Laboratory for Colloid and Interface Chemistry, Ministry of Education, State Key Laboratory of Crystal Materials, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, Shandong, China
| | - Huaifang Zhang
- School of Materials Science and Engineering, University of Science and Technology Beijing, 30 Xueyuan Road, Beijing 100083, China
| | - Yu Zhang
- Key Laboratory for Colloid and Interface Chemistry, Ministry of Education, State Key Laboratory of Crystal Materials, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, Shandong, China
- Suzhou Research Institute, Shandong University, Suzhou 215123, Jiangsu, China
| | - Peidong Shi
- Key Laboratory for Colloid and Interface Chemistry, Ministry of Education, State Key Laboratory of Crystal Materials, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, Shandong, China
- Suzhou Research Institute, Shandong University, Suzhou 215123, Jiangsu, China
| | - Kaiyu Qu
- Key Laboratory for Colloid and Interface Chemistry, Ministry of Education, State Key Laboratory of Crystal Materials, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, Shandong, China
- Suzhou Research Institute, Shandong University, Suzhou 215123, Jiangsu, China
| | - Shi-Bo Cheng
- Key Laboratory for Colloid and Interface Chemistry, Ministry of Education, State Key Laboratory of Crystal Materials, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, Shandong, China
| | - An-Liang Wang
- Key Laboratory for Colloid and Interface Chemistry, Ministry of Education, State Key Laboratory of Crystal Materials, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, Shandong, China
- Suzhou Research Institute, Shandong University, Suzhou 215123, Jiangsu, China
| | - Qipeng Lu
- School of Materials Science and Engineering, University of Science and Technology Beijing, 30 Xueyuan Road, Beijing 100083, China
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Feng XS, Shi P. Can the parental socio-economic status promote the children to participate in physical exercise? An empirical study based on the survey data of CGSS 2017. Eur Rev Med Pharmacol Sci 2022; 26:4188-4296. [PMID: 35776014 DOI: 10.26355/eurrev_202206_29055] [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] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
OBJECTIVE This paper discusses the promotion effect and mechanism of the parental socio-economic status (SES) on their offspring's participation in physical exercise and provides direction and guidance for the formulation of sports public policies. MATERIALS AND METHODS 7,965 data were obtained from the 2017 Chinese General Social Survey (CGSS) dataset. To investigate the effect and mechanism of parental SES in encouraging offspring to engage in physical activity, this paper used a binary logistic regression model and an ordinal logistic regression model. The moderating effects of urban-rural variables and birth cohorts were explored through hierarchical regression analysis and regression coefficient difference test. Robustness tests were performed by sample screening and model replacement. RESULTS After controlling for related variables, the parental SES can improve the possibility of children's participation in physical exercise (OR = 1.134, p < 0.01). Part of this promotion effect is realized by improving their children's education level (19.87%) and social communication (2.56%), and the promotion effect increases gradually with the passage of time and social changes. The robustness test results show that the empirical research results are reliable. CONCLUSIONS The parental SES can promote their children to participate in physical exercise.
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Affiliation(s)
- X S Feng
- Physical Education College, Liaoning Normal University, Dalian, P.R. China.
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Chen P, Yang T, Shi P, Shen J, Feng Q, Su J. Benefits and safety of photodynamic therapy in patients with hilar cholangiocarcinoma: A meta-analysis. Photodiagnosis Photodyn Ther 2022; 37:102712. [PMID: 34995788 DOI: 10.1016/j.pdpdt.2022.102712] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2021] [Revised: 12/16/2021] [Accepted: 01/03/2022] [Indexed: 12/25/2022]
Abstract
BACKGROUND Photodynamic therapy (PDT) is a therapy evaluated for the treatment of cancers resistant to standard oncological treatments. PDT might be beneficial for the palliation of hilar cholangiocarcinoma. AIM To evaluate the efficacy and safety of PDT for treating hilar cholangiocarcinoma. METHODS PubMed, Embase, the Cochrane Library, and Web of Science were searched for articles published up to May 2021. The patients were grouped as PDT+stent vs. stent alone. The outcomes were survival, quality of life, and adverse events (AEs). Data were summarized using hazard ratios (HRs), odds ratios (ORs), and 95% confidence intervals (CIs). RESULTS Six studies were included in this meta-analysis. There were 235 and 211 patients in the PDT+stent and stent groups, respectively. The 1-year survival rate of the PDT+stent group was 0.56, and that of the control group was 0.25. The 2-year survival rate of the PDT+stent group was 0.16, and that of the control group was 0.07. PDT significantly prolonged overall survival compared to the controls (P = 0.002). No differences were detected in the occurrence of cholangitis (P = 0.996) and all other AEs (early complications, stent malfunction, total AEs, acute pancreatitis, liver abscess, and biliary hemorrhage) between the two groups. CONCLUSION PDT in patients with hilar cholangiocarcinoma could improve survival without additional AEs. Large-scale randomized controlled trials are needed to confirm the findings.
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Affiliation(s)
- Pengcheng Chen
- Department of General Surgery, Jiading District Central Hospital Affiliated Shanghai University of Medicine & Health Sciences, Shanghai, China
| | - Ting Yang
- Department of General Surgery, Jiading District Central Hospital Affiliated Shanghai University of Medicine & Health Sciences, Shanghai, China
| | - Peidong Shi
- Department of General Surgery, Jiading District Central Hospital Affiliated Shanghai University of Medicine & Health Sciences, Shanghai, China
| | - Jiangbo Shen
- Department of General Surgery, Jiading District Central Hospital Affiliated Shanghai University of Medicine & Health Sciences, Shanghai, China
| | - Qingchun Feng
- Department of General Surgery, Jiading District Central Hospital Affiliated Shanghai University of Medicine & Health Sciences, Shanghai, China
| | - Jingen Su
- Department of General Surgery, Jiading District Central Hospital Affiliated Shanghai University of Medicine & Health Sciences, Shanghai, China.
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Shi P, Li CY, Sun JY. Effects of air pollutant exposure on lung function in exercisers: a systematic review and meta-analysis. Eur Rev Med Pharmacol Sci 2022; 26:462-470. [PMID: 35113422 DOI: 10.26355/eurrev_202201_27871] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
OBJECTIVE The aim of this study is to systematically evaluate the effect of air pollutant exposure on lung function in exercisers. MATERIALS AND METHODS Computer search Web of Science, PubMed, EBSCO and Cochrane Library, MINORS scale for literature quality evaluation, and Stata 12.0 software for statistical analysis. RESULTS According to the literature inclusion and exclusion criteria, a total of 14 pieces of literature were screened and included in the Meta-analysis, and the literature quality was relatively high. Meta-analysis shows that air pollutant exposure has no significant effect on FVC, FEV1 and PEF of exercisers (p>0.05); but it can significantly increase the FeNO level of exercisers [Z=2.26, p = 0.024, SMD=-0.228, 95% CI= (-0.426, -0.031)]. Egger linear regression analysis shows that FVC [β=-4.64, p = 0.004, 95% CI= (-7.32,-1.95)] has the possibility of publication bias; FEV1, PEF and FeNO p>0.05 and 95% CI contains 0, there is no publication bias in the included literature. There is no sensitivity problem in the included literature, and the combined result is robust and reliable. CONCLUSIONS Exposure to air pollutants may cause allergic airway inflammation by increasing FeNO levels in exercised populations, and adversely affecting human health.
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Affiliation(s)
- P Shi
- School of Physical Education and Sports Training, Shanghai University of Sport, Shanghai, China.
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Guo R, Ning Y, Ma Y, Lin Q, Shen N, Shi P. Long non-coding RNA HOTAIR/microRNA-761 sponge regulates PPME1 and further influences cell biological functions in thyroid carcinoma. Laryngoscope Investig Otolaryngol 2021; 6:438-445. [PMID: 34195365 PMCID: PMC8223458 DOI: 10.1002/lio2.593] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2021] [Revised: 05/14/2021] [Accepted: 05/17/2021] [Indexed: 11/25/2022] Open
Abstract
BACKGROUND Most well-differentiated thyroid carcinomas display good therapeutic outcomes, but there are still some patients who are not sensitive to the general treatments lose their treatment opportunities. Thus, it is important to understand the molecular mechanisms that cause thyroid carcinoma, so as to find effective diagnostic and therapeutic targets. AIM OF THE STUDY To explore the role of homeobox transcript antisense RNA (HOTAIR) in thyroid carcinoma through protein phosphatase methylesterase 1 (PPME1) by sponging microRNA 761 (miR-761). METHODS The regulation network amongst HOTAIR, miR-761 and PPME1 was predicted by online sources. RT-PCR was conducted to evaluate the expression of HOTAIR and miR-761 in tumor tissues. Clinical data was collected and analyzed by Chi-square test. Cell apoptosis and proliferation was evaluated using three types of cancer cells (HTh-7, CAL-62, BCPAP) after treated with si-HOTAIR and miR-761inhibitor. The binding site among HOTAIR, miR-761 and PPME1 was verified by dual luciferase reporter assay. PPME1 expression was measured after HOTAIR and miR-761 were suppressed by western blot. Survival time was measured in nude mice using log-rank test. RESULTS HOTAIR was expressed to a significantly greater extent than miR-761 in thyroid tumor tissues (P < .001). miR-761 and PPME1 were negatively correlated (coef = -1.91, P < .001). HOTAIR competitively binds to miR-761 and miR-761 directly targets PPME1. HOTAIR was highly correlated with TNM (χ 2 = 5.797, P = .016), tumor size (χ 2 = 7.955, P = .005) and lymphatic metastasis (χ 2 = 6.0, P = .014). HOTAIR promoted cell proliferation and inhibited cell apoptosis, whereas miR-761 did not. HOTAIR elevated and miR-761 suppressed PPME1 expression. HOTAIR expression appears to affect the survival time in vivo. CONCLUSION HOTAIR regulated thyroid cancer cells by binding to miR-761 through PPME1.
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Affiliation(s)
- Runsheng Guo
- Department of General SurgeryJiading District Central Hospital Affiliated to Shanghai University of Medicine & Health SciencesShanghaiChina
| | - Yong Ning
- Department of General SurgeryJiading District Central Hospital Affiliated to Shanghai University of Medicine & Health SciencesShanghaiChina
| | - Ye Ma
- Department of General SurgeryJiading District Central Hospital Affiliated to Shanghai University of Medicine & Health SciencesShanghaiChina
| | - Qianhuang Lin
- Department of General SurgeryJiading District Central Hospital Affiliated to Shanghai University of Medicine & Health SciencesShanghaiChina
| | - Na Shen
- Department of Otolaryngology, Zhongshan HospitalFudan UniversityShanghaiChina
| | - Peidong Shi
- Department of General SurgeryJiading District Central Hospital Affiliated to Shanghai University of Medicine & Health SciencesShanghaiChina
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Wen J, Shi ZB, Zhong WL, Yang ZC, Yang ZJ, Wang B, Jiang M, Shi PW, Hillesheim JC, Freethy SJ, Shi P, Liang AS, Tong RH, Fang KR, Deng WC, Liu Y, Yang QW, Ding XT, Xu M. A remote gain controlled and polarization angle tunable Doppler backward scattering reflectometer. Rev Sci Instrum 2021; 92:063513. [PMID: 34243534 DOI: 10.1063/5.0043676] [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: 01/10/2021] [Accepted: 05/15/2021] [Indexed: 06/13/2023]
Abstract
Remote control of the diagnostic systems is the basic requirement for the high performance plasma operation in a fusion device. This work presents the development of the remote control system for the multichannel Doppler backward scattering (DBS) reflectometers. It includes a remote controlled quasi-optical system and a remote intermediate frequency (IF) amplifier gain control system. The quasi-optical system contains a rotational polarizer, its polarization angle is tunable through a remote controlled motor, and it could combine the microwave beams with a wide frequency range into one focused beam. The remote IF gain control system utilizes the digital microcontroller (MCU) technique to regulate the signal amplitude for each signal channel. The gain parameters of amplifiers are adjustable, and the feedback of working status in the IF system will be sent to MCU in real time for safe operation. The gain parameters could be controlled either by the Ethernet remote way or directly through the local control interface on the system. Preliminary experimental results show the effectiveness of the remote controlled multichannel DBS system.
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Affiliation(s)
- J Wen
- Southwestern Institute of Physics, P.O. Box 432, Chengdu 610041, China
| | - Z B Shi
- Southwestern Institute of Physics, P.O. Box 432, Chengdu 610041, China
| | - W L Zhong
- Southwestern Institute of Physics, P.O. Box 432, Chengdu 610041, China
| | - Z C Yang
- Southwestern Institute of Physics, P.O. Box 432, Chengdu 610041, China
| | - Z J Yang
- Huazhong University of Science and Technology, Wuhan 430074, China
| | - B Wang
- University of Electronic Science and Technology of China, Chengdu 610054, China
| | - M Jiang
- Southwestern Institute of Physics, P.O. Box 432, Chengdu 610041, China
| | - P W Shi
- Southwestern Institute of Physics, P.O. Box 432, Chengdu 610041, China
| | - J C Hillesheim
- Culham Centre for Fusion Energy, Abingdon, Oxon OX14 3DB, United Kingdom
| | - S J Freethy
- Culham Centre for Fusion Energy, Abingdon, Oxon OX14 3DB, United Kingdom
| | - P Shi
- Southwestern Institute of Physics, P.O. Box 432, Chengdu 610041, China
| | - A S Liang
- Southwestern Institute of Physics, P.O. Box 432, Chengdu 610041, China
| | - R H Tong
- Southwestern Institute of Physics, P.O. Box 432, Chengdu 610041, China
| | - K R Fang
- Southwestern Institute of Physics, P.O. Box 432, Chengdu 610041, China
| | - W C Deng
- Southwestern Institute of Physics, P.O. Box 432, Chengdu 610041, China
| | - Y Liu
- Southwestern Institute of Physics, P.O. Box 432, Chengdu 610041, China
| | - Q W Yang
- Southwestern Institute of Physics, P.O. Box 432, Chengdu 610041, China
| | - X T Ding
- Southwestern Institute of Physics, P.O. Box 432, Chengdu 610041, China
| | - M Xu
- Southwestern Institute of Physics, P.O. Box 432, Chengdu 610041, China
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Zhou J, Cheng T, Li X, Pineda J, Wang X, Si H, Shi P, Shen R, Zhou N, Bai C. P46.01 Intronic Noncoding RNA Expression of DCN is Related to Cancer-Associated Fibroblasts and NSCLC Patients’ Prognosis. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.01.850] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Hao W, Liu HZ, Zhou LG, Sun YJ, Su H, Ni JQ, He T, Shi P, Wang X. MiR-122-3p regulates the osteogenic differentiation of mouse adipose-derived stem cells via Wnt/β catenin signaling pathway. Eur Rev Med Pharmacol Sci 2020; 23:3892-3898. [PMID: 31115017 DOI: 10.26355/eurrev_201905_17817] [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] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE To explore the regulatory mechanism of micro-ribonucleic acid (miR)-122-3p in the osteogenic differentiation of mouse adipose-derived stem cells (mADSCs). MATERIALS AND METHODS The regulatory mechanism of miR-122-3p in the osteogenic differentiation of mesenchymal stem cells was investigated through its overexpression and knockdown. RESULTS The overexpression of miR-122-3p inhibited the osteogenic differentiation of mADSCs. On the contrary, its knockdown promoted the osteogenic differentiation of mADSCs. The further study on the molecular mechanism of miR-122-3p regulating mADSCs' osteogenic differentiation showed that the overexpression of miR-122-3p could activate the Wingless and int-1 (WNT)/β-catenin signaling pathway, but the knockdown of miR-122-3p could repress this signaling pathway. CONCLUSIONS MiR-122-3p influences the osteogenic differentiation of mADSCs by modulating the WNT/β-catenin signaling pathway.
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Affiliation(s)
- W Hao
- Department of Orthopaedics and Traumatology, Yantai Yuhuangding Hospital, Yantai, China.
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21
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Ge M, Chen J, Zhu Z, Shi P, Yin L, Xia L. Wrist ROM measurements using smartphone photography: Reliability and validity. Hand Surgery and Rehabilitation 2020; 39:261-264. [DOI: 10.1016/j.hansur.2020.02.004] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/16/2019] [Revised: 11/19/2019] [Accepted: 02/25/2020] [Indexed: 10/24/2022]
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Li CC, Shi P, Du LP, Yuan XC. Mapping the near-field spin angular momenta in the structured surface plasmon polariton field. Nanoscale 2020; 12:13674-13679. [PMID: 32573606 DOI: 10.1039/d0nr00618a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Optical spin angular momenta in a confined electromagnetic field exhibit a remarkable difference with their free space counterparts; in particular, the optical transverse spin that is locked with the energy propagating direction lays the foundation for many intriguing physical effects such as unidirectional transportation, quantum spin Hall effects, photonic Skyrmions, etc. In order to investigate the underlying physics behind the spin-orbit interactions as well as to develop the optical spin-based applications, it is crucial to uncover the spin texture in a confined field, yet it faces challenges due to their chiral and near-field vectorial features. Here, we propose a scanning imaging technique which can map the near-field distributions of the optical spin angular momenta with an achiral dielectric nanosphere. The spin angular momentum component normal to the interface can be uncovered experimentally by employing the proposed scanning imaging technique and the three-dimensional spin vector can be reconstructed theoretically with the experimental results. The experiment is demonstrated on the example of surface plasmon polaritons excited with various vector vortex beams under a tight-focusing configuration, where the spin-orbit interaction emerges clearly. The proposed method, which can be utilized to reconstruct the photonic Skyrmion and other photonic topological structures, is straightforward and of high precision, and hence it is expected to be valuable for the study of near-field spin optics and topological photonics.
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Affiliation(s)
- C C Li
- Nanophotonics Research Center, Shenzhen Key Laboratory of Micro-Scale Optical Information Technology & Institute of Microscale Optoelectronics, Shenzhen University, Shenzhen 518060, China.
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Jia Y, Hu C, Shi P, Xu Q, Zhu W, Liu R. Effects of cellulose nanofibrils/graphene oxide hybrid nanofiller in PVA nanocomposites. Int J Biol Macromol 2020; 161:223-230. [PMID: 32512103 DOI: 10.1016/j.ijbiomac.2020.06.013] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2020] [Revised: 05/31/2020] [Accepted: 06/02/2020] [Indexed: 01/08/2023]
Abstract
NCF/GO hybrid nanofillers with excellent UV-shielding properties were prepared by using TEMPO-oxidized nanocellulose fibrils (NCF) and graphene oxide (GO) as raw materials; different mass ratios of NCF to GO (2: 1, 4: 1, 8: 1, and 16: 1) were used. The NCF and GO were then combined and used as a hybrid filler to study the synergistic effects on polyvinyl alcohol (PVA) nanocomposites. With 5% hybrid nanofiller, the UV-shielding performance of the PVA/NCF/GO composite film was higher than 90%. The tensile strength and Young's modulus of the PVA/CG-2 composite film increased by 74.5% and 278.0%, respectively, and the water absorption decreased by 59%. Moreover, the thermal stabilities of the nanocomposites also improved. This synergistic effect improved the performance of the hybrid nanofiller by avoiding the agglomeration of nanofillers in the polymer matrix and improving the homogeneity of the dispersion. The synergistic effect between the fillers provides a new idea for the preparation of novel multifunctional nanocomposites.
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Affiliation(s)
- Yuanyuan Jia
- Tianjin Key Laboratory of Brine Chemical Industry and Ecological Utilization of Resources, College of Chemical Engineering and Materials, Tianjin University of Science and Technology, Tianjin, 300457, China; Tianjin Key Laboratory of Pulp & Paper, Tianjin University of Science and Technology, Tianjin, 300457, China
| | - Chunrui Hu
- Tianjin Key Laboratory of Brine Chemical Industry and Ecological Utilization of Resources, College of Chemical Engineering and Materials, Tianjin University of Science and Technology, Tianjin, 300457, China
| | - Peidong Shi
- State Key Laboratory of Food Nutrition and Safety, Tianjin University of Science and Technology, Tianjin, 300457, China
| | - Qianqian Xu
- Tianjin Key Laboratory of Brine Chemical Industry and Ecological Utilization of Resources, College of Chemical Engineering and Materials, Tianjin University of Science and Technology, Tianjin, 300457, China
| | - Wenjing Zhu
- Tianjin Key Laboratory of Brine Chemical Industry and Ecological Utilization of Resources, College of Chemical Engineering and Materials, Tianjin University of Science and Technology, Tianjin, 300457, China
| | - Rui Liu
- State Key Laboratory of Food Nutrition and Safety, Tianjin University of Science and Technology, Tianjin, 300457, China.
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Abstract
MicroRNAs (miRNAs) have been demonstrated to have promoting or inhibiting effects on the tumorigenesis of multiple cancers, including ovarian cancer (OC), by regulating its downstream target genes. In the presented experiment, our aim was to explore the role of miR-543 in OC cell proliferation and invasion. Results of quantitative reverse transcription-polymerase chain reaction (qRT-PCR) and Western blot revealed that miR-543 have lower expression levels, while Twist homolog 1 (TWIST1) was expressed with higher levels in OC tissues and cells. Furthermore, the effects of abnormal miR-543 expression in OC cell proliferation and invasion were detected by CCK-8 and Transwell assay. According to luciferase reporter assay results, TWIST1 was identified as a downstream target of miR-543 in OC, and a negative correlation was observed between TWIST1 and miR-543 expression by Spearman's correlation analysis in OC tissues. In addition, TWIST1 may reverse the miR-543 suppression effect on OC cell proliferation and invasion. To sum up, miR-543 may promote OC cell proliferation and invasion by targeting TWIST1.
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Affiliation(s)
- Q Yu
- Women Health Care Department, Zhangqiu Maternity and Child Care Hospital, Jinan China
| | - Z Zhang
- Emergency Department, Jinan Zhangqiu District Hospital of TCM, Jinan, China
| | - B He
- Jinan Li Cheng District Maternal and Child Health and Family Planning Service Centre, Jinan, China
| | - H Wang
- Infectious Disease Department, the People's Hospital of Zhangqiu Area, Jinan, China
| | - P Shi
- No 1 Department of Cardiology, the People's Hospital of Zhangqiu Area, Jinan, China
| | - Y Li
- Interventional Vascular Department, the People's Hospital of Zhangqiu Area, Jinan, China
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Zhang ZL, Huang QB, Zhang Y, Shi P, Sang XG. [Clinical efficacy of damage control orthopaedics in treatment of patients with severe traumatic brain injury combined with limb fracture]. Zhonghua Yi Xue Za Zhi 2020; 99:3797-3802. [PMID: 31874517 DOI: 10.3760/cma.j.issn.0376-2491.2019.48.008] [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 explore the clinical efficacy of damage control orthopaedics in treatment of patients with severe traumatic brain injury combined with limb fracture. Methods: Total 149 patients with sTBI combined with limb fracture treated in Emergency Surgery Department of Shandong University Qilu Hospital from January, 2011 to December, 2018 were collected. Patients that were treated with immediate definitive fixation before March 31st, 2013 were included into the routine treatment group (group A, 47 cases), and that were treated with damage control orthopaedics (DCO) after April 1st, 2013 were included into the DCO group (group B, 102 cases). The clinical data during hospitalization and prognosis 3 months after injury was analyzed retrospectively. Then according to the risk of postoperative ICP increase, the two groups were divided into low risk subgroup and high risk subgroup. The postoperative ICP, length of stay and GOS score were statistically analyzed. Results: There were no statistically significant differences in sex, age, preoperative GCS score, imaging type of lesion and initial intraoperative ICP between the two groups. The postoperative ICP and incidence of coagulation dysfunction were significantly higher in group A [(17.1±4.6) mmHg, 29.8%] than that in group B[(15.0±4.3) mmHg, 13.7%] separately(P<0.05), and there was no significant difference of length of stay and GOS score between the two groups (P=0.475 and 0.097, respectively). As for the subgroup with low risk of postoperative ICP increase, there was no significant difference in postoperative ICP and GOS score between group A and B, and the length of stay of group B was significantly longer than that of group A (P<0.05). As for the subgroup with high risk of postoperative ICP increase, there was no significant difference in the length of stay between group A and B (P=0.667), and for group A the postoperative ICP was higher and GOS score was lower than that of group B (P<0.05). Conclusions: For patients with sTBI combined with limb fracture, the application of DCO should be based on the severity of traumatic brain injury. For patients with high risk of postoperative ICP increase, DCO can significantly improve the prognosis of patients.
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Affiliation(s)
- Z L Zhang
- Department of Emergency Neurosurgery, Qilu Hospital of Shandong University, Jinan 250012,China
| | - Q B Huang
- Department of Emergency Neurosurgery, Qilu Hospital of Shandong University, Jinan 250012,China
| | - Y Zhang
- Department of Emergency Neurosurgery, Qilu Hospital of Shandong University, Jinan 250012,China
| | - P Shi
- Department of Emergency Neurosurgery, Qilu Hospital of Shandong University, Jinan 250012,China
| | - X G Sang
- Department of Emergency Neurosurgery, Qilu Hospital of Shandong University, Jinan 250012,China
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Chen X, Chen X, Steimbach RR, Wu T, Li H, Dan W, Shi P, Cao C, Li D, Miller AK, Qiu Z, Gao J, Zhu Y. Novel 2, 5-diketopiperazine derivatives as potent selective histone deacetylase 6 inhibitors: Rational design, synthesis and antiproliferative activity. Eur J Med Chem 2019; 187:111950. [PMID: 31865013 DOI: 10.1016/j.ejmech.2019.111950] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [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: 07/05/2019] [Revised: 11/05/2019] [Accepted: 12/02/2019] [Indexed: 01/22/2023]
Abstract
Histone deacetylase 6 (HDAC6) has gained popular attention for its wide participation in various pathological process recently. In this paper, a series of novel derivatives containing 2, 5-diketopiperazine (DKP) skeleton were developed as potent selective HDAC6 inhibitors (sHDAC6is). Most of these compounds exhibited low nanomolar IC50 values toward HDAC6, and the best compound was 21b (IC50 = 0.73 nM) which had 144-10941-fold selectivity over other HDAC isoforms. Western blot assay further validated these compounds to be sHDAC6is. Molecular simulation of 21b was conducted to rationalize the high binding affinity for HDAC6. In the cytotoxicity experiment, 18a, 18b and 18d gave superior or comparable influence on the growth of two multiple myeloma cells U266 and RPMI-8226 compared to ACY-1215. Moreover, the combination of 18a and adriamycin showed synergistic effect against non-small cell lung cancer cell A549. 18a and 18b also demonstrated appropriate drug metabolism in human liver microsome (HLM).
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Affiliation(s)
- Xin Chen
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, Yangling, 712100, PR China
| | - Xinyang Chen
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, Yangling, 712100, PR China
| | - Raphael R Steimbach
- Cancer Drug Development Group, German Cancer Research Center (DKFZ), 69120, Heidelberg, Germany; Biosciences Faculty, University of Heidelberg, 69120, Heidelberg, Germany
| | - Tong Wu
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, Yangling, 712100, PR China
| | - Hongmei Li
- School of Science, China Pharmaceutical University, Nanjing, 210009, PR China
| | - Wenjia Dan
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, Yangling, 712100, PR China
| | - Peidong Shi
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, Yangling, 712100, PR China
| | - Chenyu Cao
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, Yangling, 712100, PR China
| | - Ding Li
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, Yangling, 712100, PR China
| | - Aubry K Miller
- Cancer Drug Development Group, German Cancer Research Center (DKFZ), 69120, Heidelberg, Germany; German Cancer Consortium (DKTK), 69120, Heidelberg, Germany
| | - Zhixia Qiu
- School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, 210009, PR China
| | - Jinming Gao
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, Yangling, 712100, PR China.
| | - Yong Zhu
- School of Science, China Pharmaceutical University, Nanjing, 210009, PR China.
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Zhou LG, Shi P, Sun YJ, Liu HZ, Ni JQ, Wang X. MiR-214-3p delays fracture healing in rats with osteoporotic fracture through inhibiting BMP/Smad signaling pathway. Eur Rev Med Pharmacol Sci 2019; 23:449-455. [PMID: 30720150 DOI: 10.26355/eurrev_201901_16854] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE The purpose of this study was to explore the mechanism of micro-ribonucleic acid (miR)-214-3p in regulating fracture healing in rats with osteoporosis. MATERIALS AND METHODS A total of 30 female Sprague-Dawley rats were selected and randomly divided into 3 groups, including group A [phosphate-buffered saline (PBS), n=10], group B (AntagomiR-NC, n=10), and group C (AntagomiR-214-3p, n=10). All rats underwent ovariectomy, and the osteoporosis rat model was verified by dual-energy X-ray absorptiometry 8 weeks after the operation. Then the osteoporotic fracture was established in rats via a second operation. From the successful modeling until the 6th week, 50 μL PBS (2 nmoL) was intraperitoneally injected in group A, an equal amount of AntagomiR-NC was injected in group B, and an equal amount of AntagomiR-214-3p was injected in group C once a week. At the 6th week, fracture healing of osteoporosis rats was evaluated. At the same time, the expression of miR-214-3p in the three groups was detected via reverse Transcription-Polymerase Chain Reaction (RT-PCR). Furthermore, the protein expressions of bone morphogenetic protein 2 (BMP2) and Smad4 in the three groups were detected via Western blotting (WB). RESULTS After ovariectomy, the bone mineral density in each group was significantly lower than that before ovariectomy, and the differences were statistically significant (p<0.05). Imaging evaluation demonstrated that compared with group A and B, there were significantly more callus tissues in group C. Meanwhile, the fracture line healing was better and blurred, and the internal fixation had no displacement and loosening. RT-PCR results indicated that the expression level of miR-214-3p in group C was significantly lower than that of the other two groups (p<0.05). WB results showed that the protein expression levels of BMP2 and Smad4 in group C were significantly higher than those of group A and group B (p<0.05). CONCLUSIONS MiR-214-3p delays fracture healing in rats with osteoporotic fracture by inhibiting the BMP/Smad signaling pathway.
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Affiliation(s)
- L-G Zhou
- Department of Orthopaedics Traumatology, the Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, China.
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Shi P, Qiu QS, Zhuang G, Gao L, Zhou YN, Zhou CX. Measurement of density fluctuation propagation direction via the far-forward collective scattering diagnostic based on polarimeter-interferometer. Rev Sci Instrum 2018; 89:10C110. [PMID: 30399876 DOI: 10.1063/1.5038845] [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: 05/06/2018] [Accepted: 08/06/2018] [Indexed: 06/08/2023]
Abstract
Previously, the 17-channel three-wave polarimeter-interferometer system (POLARIS) on the J-TEXT tokamak has been implemented to measure far-forward collective scattering (FFCS) from electron density fluctuations. Recently, this system has been exploited to measure the propagation direction of density fluctuation. After considering the refraction of the laser probe beam passing through plasma, the ray tracing result shows that the detector of POLARIS may receive asymmetric far-forward scattering beams. Thus, the heterodyne detection of FFCS is available to identify the propagation direction of density fluctuation by resolving the asymmetric scattering spectrum. Experimentally, the transform of the heterodyne scattering spectrum from symmetry to asymmetry has been observed, while the refraction effect becomes strong demonstrating the capacity of measuring the propagation direction of fluctuation. Furthermore, by changing the plasma potential through the use of an applied positive electrode biasing, the reverse of frequency shift for the heterodyne scattering spectrum is identified, confirming the validity of direction discrimination of density fluctuation.
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Affiliation(s)
- P Shi
- International Joint Research Laboratory of Magnetic Confinement Fusion and Plasma Physics, State Key Laboratory of Advanced Electromagnetic Engineering and Technology, School of Electrical and Electronic Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Q S Qiu
- International Joint Research Laboratory of Magnetic Confinement Fusion and Plasma Physics, State Key Laboratory of Advanced Electromagnetic Engineering and Technology, School of Electrical and Electronic Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - G Zhuang
- International Joint Research Laboratory of Magnetic Confinement Fusion and Plasma Physics, State Key Laboratory of Advanced Electromagnetic Engineering and Technology, School of Electrical and Electronic Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - L Gao
- International Joint Research Laboratory of Magnetic Confinement Fusion and Plasma Physics, State Key Laboratory of Advanced Electromagnetic Engineering and Technology, School of Electrical and Electronic Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Y N Zhou
- International Joint Research Laboratory of Magnetic Confinement Fusion and Plasma Physics, State Key Laboratory of Advanced Electromagnetic Engineering and Technology, School of Electrical and Electronic Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - C X Zhou
- International Joint Research Laboratory of Magnetic Confinement Fusion and Plasma Physics, State Key Laboratory of Advanced Electromagnetic Engineering and Technology, School of Electrical and Electronic Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
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Zhang H, Yang W, Yan J, Zhou K, Wan B, Shi P, Chen Y, He S, Li D. Loss of profilin 2 contributes to enhanced epithelial-mesenchymal transition and metastasis of colorectal cancer. Int J Oncol 2018; 53:1118-1128. [PMID: 30015842 PMCID: PMC6065425 DOI: 10.3892/ijo.2018.4475] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2017] [Accepted: 06/07/2018] [Indexed: 12/14/2022] Open
Abstract
Profilin 2 (PFN2) functions as an actin cytoskeleton regulator and serves an important role in cell motility. However, a role for PFN2 in the progression of colorectal cancer (CRC), particularly in metastasis, has yet to be clarified. The aim of the present study was to investigate whether PFN2 served specific roles in the progression of human CRC. The results demonstrated that PFN2 was differentially expressed in CRC tissues and cell lines by reverse transcription-quantitative polymerase chain reaction and western blotting. PFN2 expression was also negatively associated with the degree of tumor metastasis. Low PFN2 expression in CRC cells was related with enhanced epithelial-mesenchymal transition (EMT) and, in turn, may increase migratory capabilities. Overexpression of PFN2 in CRC cell lines with a low level of endogenous PFN2 inhibited the EMT process, as well as the associated migration; in addition, myosin light chain (MLC) phosphorylation was upregulated. Inhibition of MLC phosphorylation attenuated the inhibition of EMT and cell migratory abilities induced by PFN2 overexpression in CRC cell lines, the results suggested that PFN2 may suppress cancer EMT and the subsequent metastasis by regulating cytoskeletal reorganization. These results demonstrated that PFN2 may serve a suppressive role in the metastasis of CRC and therefore may provide a new potential target for cancer therapeutics.
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Affiliation(s)
- Hui Zhang
- Department of General Surgery, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215006, P.R. China
| | - Weiqiang Yang
- Department of General Surgery, Jiading District Central Hospital Affiliated Shanghai University of Medicine & Health Sciences, Shanghai 201800, P.R. China
| | - Jinlong Yan
- Department of General Surgery, Jiading District Central Hospital Affiliated Shanghai University of Medicine & Health Sciences, Shanghai 201800, P.R. China
| | - Kaiping Zhou
- Department of General Surgery, Jiading District Central Hospital Affiliated Shanghai University of Medicine & Health Sciences, Shanghai 201800, P.R. China
| | - Boshun Wan
- Department of General Surgery, Jiading District Central Hospital Affiliated Shanghai University of Medicine & Health Sciences, Shanghai 201800, P.R. China
| | - Peidong Shi
- Department of General Surgery, Jiading District Central Hospital Affiliated Shanghai University of Medicine & Health Sciences, Shanghai 201800, P.R. China
| | - Yueyu Chen
- Department of General Surgery, Jiading District Central Hospital Affiliated Shanghai University of Medicine & Health Sciences, Shanghai 201800, P.R. China
| | - Songbing He
- Department of General Surgery, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215006, P.R. China
| | - Dechun Li
- Department of General Surgery, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215006, P.R. China
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30
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Liu Q, Zhao LC, Shi P, Ren FX, Wu YF, Xie GQ. [Correlation of baseline serum interleukin-6, 10 and its ratio with 7-year all-cause mortality in 11 communities of Beijing]. Zhonghua Yi Xue Za Zhi 2018; 98:460-466. [PMID: 29429261 DOI: 10.3760/cma.j.issn.0376-2491.2018.06.014] [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 whether baseline interleukin-6 (IL-6), interleukin-10 (IL-10) as well as their ratio was associated with overall mortality risk over 7 years of follow-up in 11 communities of Beijing. Methods: Data from a prospective cohort study conducted between 2005 and 2012 in 11 communities of Beijing was analyzed to examine the above associations. Serum IL-6 and IL-10 were analyzed using enzyme-linked immunosorbent assay (ELISA) kits. Follow-up surveys were conducted in 2007, 2010 and 2012 to collect data about participant's survival. Cox regression model was used to estimate the impact of IL-6, IL-10 and their ratio on overall mortality risk. Results: Among 1 539 eligible participants (10 263 total person-years), 77 deaths occurred in 7 years of follow-up. The rates of all-cause death were 4.86, 7.24, and 10.56 per 1 000 person-years (P=0.009) in the first, second, and third tertile of IL-6, respectively. The corresponding age-sex-adjusted hazard ratios (HR) were 1.00, 1.18 (95% CI: 0.64-2.19), and 1.80 (95% CI: 1.01-3.23) and full-adjusted HR were 1.00, 1.17 (95% CI: 0.63-2.19) and 1.87 (95% CI: 1.04-3.36). The corresponding rates of all-cause deaths were not significantly different among three tertiles of IL-10. The age-sex and full-adjusted HR were not significantly different in Cox model. The rates of all-cause death were 4.63, 8.99, and 8.93 per 1 000 person-years (P=0.043) in the first, second, and third tertile of IL-6/IL-10 ratio, respectively. The corresponding age-sex-adjusted HR were 1.00, 1.67 (95% CI: 0.91-3.06), and 1.98 (95% CI: 1.08-3.64) and full-adjusted HR were 1.00, 1.66 (95% CI: 0.90-3.06), and 2.09 (95% CI: 1.13-3.87). Conclusion: High IL-6 and IL-6/IL-10 ratio may be new risk factors to all-cause death. However, IL-10 is not significantly associated with death.
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Affiliation(s)
- Q Liu
- Peking University Clinical Research Institute, Key Laboratory of Molecular Cardiovascular Sciences, Ministry of Education, Beijing 100191, China
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Fu JG, Shi C, Sha D, Shi P, Bao CJ, Ai J. [Genetic characterization of norovirus isolated in an outbreak of gastroenteritis in Jiangsu province]. Zhonghua Liu Xing Bing Xue Za Zhi 2018; 39:72-74. [PMID: 29374900 DOI: 10.3760/cma.j.issn.0254-6450.2018.01.015] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [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 analyze the genetic characterization of norovirus isolated in an outbreak of gastroenteritis in Jiangsu province. Methods: Extracted viral RNA from the swab samples of cases of acute gastroenteritis outbreak in Jiangsu province on December 16-27, 2016 was reversely transcribed to cDNA, and partial RNA-dependent RNA polymerase sequence and complete capsid sequence (VP1) were amplified by RT-PCR. Amplification products were sequenced for the analysis of genetic characteristics. Results: Based on sequence alignment, the variant shared a high level of identity with the strain GⅡ.g isolated in Spain and Finland (98.7%) in the RNA-dependent RNA polymerase region, and with the strain GⅡ.1 isolated in American (99.4%) in the VP1. The recombination was determined by using software Simplot, and the breakpoint of recombination was located in the ORF1/2 overlap region at position 5 106 of VP1. The result of amino acids alignment in capsid region showed that there were no mutations in the amino acids of the predicted epitopes and receptor binding site Ⅰ-Ⅲ, but a unique amino acid change was detected at position 132 (N-S). Conclusion: The norovirus isolated in the outbreak of gastroenteritis in Jiangsu province was a rare recombinant norovirus variant GⅡ.g-GⅡ.1.
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Affiliation(s)
- J G Fu
- Key Laboratory of Enteric Pathogenic Microbiology, Ministry of Health, Jiangsu Provincial Center of Disease Control and Prevention, Nanjing 210009, China
| | - C Shi
- Wuxi Prefecture Center for Disease Control and Prevention, Wuxi 214002, China
| | - D Sha
- Wuxi Prefecture Center for Disease Control and Prevention, Wuxi 214002, China
| | - P Shi
- Wuxi Prefecture Center for Disease Control and Prevention, Wuxi 214002, China
| | - C J Bao
- Key Laboratory of Enteric Pathogenic Microbiology, Ministry of Health, Jiangsu Provincial Center of Disease Control and Prevention, Nanjing 210009, China
| | - J Ai
- Key Laboratory of Enteric Pathogenic Microbiology, Ministry of Health, Jiangsu Provincial Center of Disease Control and Prevention, Nanjing 210009, China
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Tu Q, Hao J, Zhou X, Yan L, Dai H, Sun B, Yang D, An S, Lv L, Jiao B, Chen C, Lai R, Shi P, Zhao X. CDKN2B deletion is essential for pancreatic cancer development instead of unmeaningful co-deletion due to juxtaposition to CDKN2A. Oncogene 2017; 37:128-138. [PMID: 28892048 PMCID: PMC5759028 DOI: 10.1038/onc.2017.316] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2017] [Revised: 06/07/2017] [Accepted: 07/31/2017] [Indexed: 12/28/2022]
Abstract
Pancreatic cancer is among the deadliest malignancies; however, the genetic events that lead to pancreatic carcinogenesis in adults remain unclear. In vivo models in which these genetic alterations occur in adult animals may more accurately reflect the features of human cancer. In this study, we demonstrate that inactivation of Cdkn2b (p15ink4b) is necessary for induction of pancreatic cancer by oncogenic KRASG12D expression and inactivation of Tp53 and Cdkn2a in adult mouse pancreatic ductal cells (P60 or older). KRASG12D overexpression in these cells activated transforming growth factor-β signaling and expression of CDKN2B, which, along with CDKN2A, led to cellular senescence and protected cells from KRAS-mediated transformation via inhibition of retinoblastoma phosphorylation. These results show a critical role of CDKN2B inactivation in pancreatic carcinogenesis, and provide a useful adult animal model by genetic engineering via lentiviral delivery.
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Affiliation(s)
- Q Tu
- Key Laboratory of Animal Models and Human Disease Mechanisms of Chinese Academy of Sciences/Key Laboratory of Bioactive Peptides of Yunnan Province, Kunming Institute of Zoology, Kunming, China.,Kunming College of Life Science, University of Chinese Academy of Sciences, Kunming, China
| | - J Hao
- State Key Laboratory of Genetic Resources and Evolution, Laboratory of Evolutionary and Functional Genomics, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, China
| | - X Zhou
- Key Laboratory of Animal Models and Human Disease Mechanisms of Chinese Academy of Sciences/Key Laboratory of Bioactive Peptides of Yunnan Province, Kunming Institute of Zoology, Kunming, China.,Kunming College of Life Science, University of Chinese Academy of Sciences, Kunming, China
| | - L Yan
- Key Laboratory of Animal Models and Human Disease Mechanisms of Chinese Academy of Sciences/Key Laboratory of Bioactive Peptides of Yunnan Province, Kunming Institute of Zoology, Kunming, China.,Kunming Primate Research Center, Chinese Academy of Sciences, Kunming, China
| | - H Dai
- Key Laboratory of Animal Models and Human Disease Mechanisms of Chinese Academy of Sciences/Key Laboratory of Bioactive Peptides of Yunnan Province, Kunming Institute of Zoology, Kunming, China
| | - B Sun
- Key Laboratory of Animal Models and Human Disease Mechanisms of Chinese Academy of Sciences/Key Laboratory of Bioactive Peptides of Yunnan Province, Kunming Institute of Zoology, Kunming, China.,Kunming College of Life Science, University of Chinese Academy of Sciences, Kunming, China
| | - D Yang
- Key Laboratory of Animal Models and Human Disease Mechanisms of Chinese Academy of Sciences/Key Laboratory of Bioactive Peptides of Yunnan Province, Kunming Institute of Zoology, Kunming, China.,Kunming College of Life Science, University of Chinese Academy of Sciences, Kunming, China
| | - S An
- Key Laboratory of Animal Models and Human Disease Mechanisms of Chinese Academy of Sciences/Key Laboratory of Bioactive Peptides of Yunnan Province, Kunming Institute of Zoology, Kunming, China.,Kunming College of Life Science, University of Chinese Academy of Sciences, Kunming, China
| | - L Lv
- Kunming Primate Research Center, Chinese Academy of Sciences, Kunming, China
| | - B Jiao
- State Key Laboratory of Genetic Resources and Evolution, Laboratory of Evolutionary and Functional Genomics, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, China
| | - C Chen
- Key Laboratory of Animal Models and Human Disease Mechanisms of Chinese Academy of Sciences/Key Laboratory of Bioactive Peptides of Yunnan Province, Kunming Institute of Zoology, Kunming, China
| | - R Lai
- Key Laboratory of Animal Models and Human Disease Mechanisms of Chinese Academy of Sciences/Key Laboratory of Bioactive Peptides of Yunnan Province, Kunming Institute of Zoology, Kunming, China
| | - P Shi
- State Key Laboratory of Genetic Resources and Evolution, Laboratory of Evolutionary and Functional Genomics, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, China
| | - X Zhao
- Key Laboratory of Animal Models and Human Disease Mechanisms of Chinese Academy of Sciences/Key Laboratory of Bioactive Peptides of Yunnan Province, Kunming Institute of Zoology, Kunming, China.,Kunming Primate Research Center, Chinese Academy of Sciences, Kunming, China.,KIZ-SU Joint Laboratory of Animal Model and Drug Development, College of Pharmaceutical Sciences, Soochow University, Suzhou, China
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Qian T, Zhang R, Zhu L, Shi P, Yang J, Liu Y, Yu JL, Zhou XG, Yang Y, Qiu YP, Liu L, Wei QF, Xu FL, Li YF, Chen C. [Analysis of clinical characteristics of necrotizing enterocolitis in term infants]. Zhonghua Yi Xue Za Zhi 2017; 96:1766-72. [PMID: 27356646 DOI: 10.3760/cma.j.issn.0376-2491.2016.22.012] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [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 characteristics and outcomes of necrotizing enterocolitis (NEC) in Chinese term infants population. METHODS A national neonatal necrotizing enterocolitis network was established. Neonates as having necrotizing enterocolitis with gestation age ≥37 weeks were identified if they met the accepted diagnostic criterion during the study period from Jan 1(st) 2011 to Dec 31(st) 2011. The data of maternal and neonates' characteristics, the comorbidities, the clinical interventions prior to NEC, the clinical courses and radiology results, the medical and surgical treatment and the outcomes were collected. SPSS 19.0 software was used to do statistic analysis. Logistic-regression models were used to analyze the risk factors for death in infants with NEC, odds ratio (OR) and 95% confidence interval (CI) were calculated. RESULTS There were 231 067 newborn infants, 164 307 of them were term infants, admitted to 95 hospitals in main land China. There were 718 term infants were diagnosed as necrotizing enterocolitis with the incidence of 0.44%. There were 294 term infants cases identified as ≥stage 2 necrotizing enterocolitis for the analysis, including 193 cases of stage 2 and 101 cases of stage 3.The mean gestation age was (39.0±1.3) weeks, and the mean birth weight was(3 087.4±548.3)g. The percentage of small for gestation age was 20.4%. The onset age of NEC was 5 (2-11)d. The percentage of cases received breast milk feeding was 23.7%. The most common comorbidities were sepsis (9.5%, 28/294), asphyxia (9.5%, 28/294), pneumonia (7.8%, 23/294) and congenital megacolon (7.5%, 22/294). The bowel perforation rate was 13.9%. The rate of cases who received surgical treatment was 25.2%(76.6% small intestinal necrosis and 65.8% small intestinal perforation). The mortality rate was 28.9%(the mortality rate were 20.7% and 44.6% in stage 2 and stage 3 NEC, respectively). Noninvasive continuous positive airway pressure treatment for NEC (OR=5.278, 95% CI: 2.058-13.533, P<0.01) and NEC staging 3 (OR=3.156, 95% CI: 1.766-5.642, P<0.01) were statistically significantly associated with mortality of NEC. CONCLUSIONS The term infants with necrotizing enterocolitis usually have the underlying comorbidities. The breastmilk feeding rate is low. Necrotizing enterocolitis remains high mortality in term neonates in Chinese neonatal units. Noninvasive continuous positive airway pressure treatment for NEC is statistically significantly associated with mortality of NEC.
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Affiliation(s)
- T Qian
- Department of Neonatology, Children's Hospital of Fudan University, Shanghai 201102, China
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Zhao ZR, Li M, Shi P, Zhang P. MiRNA153 induces pituitary tumor MMQ cell line apoptosis through down-regulating Skp protein expression. Eur Rev Med Pharmacol Sci 2017; 21:1270-1275. [PMID: 28387903] [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: 06/07/2023]
Abstract
OBJECTIVE Pituitary tumor seriously threatens patient's life. MicroRNAs regulate cell growth and apoptosis. This study aims to investigate the effects of miRNA153 on pituitary tumor MMQ cells proliferation and apoptosis. MATERIALS AND METHODS Synthetic miRNA153 and control miRNA were transfected to MMQ cell line. Cell proliferation and apoptosis were tested by MTT assay and flow cytometry, respectively. Skp protein expression was detected by Western blot assay. Skp siRNA or Skp plasmid was transfected to MMQ cells transfected by miRNA153 to evaluate the influence on MMQ cell apoptosis. RESULTS MMQ cell proliferation was inhibited and apoptosis was enhanced after miRNA153 transfection. Skp protein level decreased in MMQ cells transfected by miRNA153. Skp interference enhanced MMQ cell apoptosis induced by miRNA153. Skp overexpression restrained MMQ cell apoptosis triggered by miRNA153. CONCLUSIONS MiRNA153 transfection suppressed MMQ cell growth and induced apoptosis. MiRNA153 regulated MMQ cell apoptosis through down-regulating Skp protein.
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Affiliation(s)
- Z-R Zhao
- Department of Neurology, Yantai Yeda Hospital, Yantai, Shandong, China.
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Zhu P, Wang S, Wang J, Zhou L, Shi P. Simultaneous analysis of adenosine triphosphate and its metabolites in Saccharomyces Cerevisiae using RP-HPLC. ACTA CHROMATOGR 2016. [DOI: 10.1556/1326.2016.28.4.10] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Shi P, Chen J, Gao L, Liu Y, Liu H, Zhou YN, Zhuang G. Far-forward collective scattering measurements by FIR polarimeter-interferometer on J-TEXT tokamak. Rev Sci Instrum 2016; 87:11E110. [PMID: 27910372 DOI: 10.1063/1.4960067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
The multi-channel three-wave polarimeter-interferometer system on J-TEXT tokamak has been exploited to measure far-forward collective scattering from electron density fluctuations. The diagnostic utilizes far infrared lasers operated at 432 μm with 17-channel vertical chords (3 cm chord spacing), covering the entire cross section of plasma. Scattering laser power is measured using a high-sensitivity Schottky planar diode mixer which can also detect polarimetric and interferometric phase simultaneously. The system provides a line-integrated measurement of density fluctuations with maximum measurable wave number: k⊥max ≤ 2 cm-1 and time response up to 350 kHz. Feasibility of the diagnostic has been tested, showing higher sensitivity to detect fluctuation than interferometric measurement. Capability of providing spatial-resolved information of fluctuation has also been demonstrated in preliminary experimental applications.
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Affiliation(s)
- P Shi
- State Key Laboratory of Advanced Electromagnetic Engineering and Technology, Huazhong University of Science and Technology, Wuhan 430074, China
| | - J Chen
- State Key Laboratory of Advanced Electromagnetic Engineering and Technology, Huazhong University of Science and Technology, Wuhan 430074, China
| | - L Gao
- State Key Laboratory of Advanced Electromagnetic Engineering and Technology, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Y Liu
- State Key Laboratory of Advanced Electromagnetic Engineering and Technology, Huazhong University of Science and Technology, Wuhan 430074, China
| | - H Liu
- State Key Laboratory of Advanced Electromagnetic Engineering and Technology, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Y N Zhou
- State Key Laboratory of Advanced Electromagnetic Engineering and Technology, Huazhong University of Science and Technology, Wuhan 430074, China
| | - G Zhuang
- State Key Laboratory of Advanced Electromagnetic Engineering and Technology, Huazhong University of Science and Technology, Wuhan 430074, China
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Guo R, Qin Y, Shi P, Xie J, Chou M, Chen Y. IL-1β promotes proliferation and migration of gallbladder cancer cells via Twist activation. Oncol Lett 2016; 12:4749-4755. [PMID: 28105184 DOI: 10.3892/ol.2016.5254] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [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: 04/12/2015] [Accepted: 07/20/2016] [Indexed: 12/23/2022] Open
Abstract
Increasing evidence has revealed a correlation between chronic inflammation and gallbladder cancer (GBC). However, the underlying molecular mechanisms remain to be elucidated. In the present study, secretion of interleukin (IL)-1β was examined in tissues of GBC, chronic cholecystitis and normal gallbladder, as well as in the supernatant of GBC-SD, SGC996 and HIBEpiC cells. The effect of IL-1β on the proliferation and migration of GBC cell lines was also evaluated. In addition, the role of Twist in IL-1β-induced proliferation of GBC cells was also studied. It was observed that the level of IL-1β protein in normal gallbladder tissue was low, while it was significantly increased in GBC and chronic cholecystitis tissues. The level of IL-1β protein and mRNA in GBC-SD and SGC996 cells was markedly higher than those in HIBEpiC cells. Exogenous IL-1β promoted the proliferation of GBC-SD and SGC996 cells in vitro and in vivo, and also promoted migration in vitro. The level of Twist protein was significantly increased following treatment with exogenous IL-1β. In addition, gene silencing of Twist blocked IL-1β-induced proliferation and migration of GBC-SD and SGC996 cells. Taken together, these results indicate that IL-1β promotes proliferation and migration of GBC cells via Twist activation.
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Affiliation(s)
- Runsheng Guo
- Department of General Surgery, Jiading Central Hospital, Shanghai 201800, P.R. China
| | - Yiyu Qin
- Clinical College, Yancheng Institute of Health Sciences, Yancheng, Jiangsu 224005, P.R. China
| | - Peidong Shi
- Department of General Surgery, Jiading Central Hospital, Shanghai 201800, P.R. China
| | - Jinbi Xie
- Department of Gastroenterology, Jiading Central Hospital, Shanghai 201899, P.R. China
| | - Ming Chou
- Department of General Surgery, Changzheng Hospital, Second Military Medical University, Shanghai 201705, P.R. China
| | - Yueyu Chen
- Department of General Surgery, Jiading Central Hospital, Shanghai 201800, P.R. China
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Teh T, Shi P, Ren X, Hui J, Tan W, Li J, Goh J. Augmentation of tendon graft anterior cruciate ligament reconstruction outcome using a silk based osteoconductive sheath. Asia Pac J Sports Med Arthrosc Rehabil Technol 2016. [DOI: 10.1016/j.asmart.2016.07.195] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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Gibbs D, Black C, Hulsart-Billstrom G, Shi P, Scarpa E, Oreffo R, Dawson J. Bone induction at physiological doses of BMP through localization by clay nanoparticle gels. Biomaterials 2016; 99:16-23. [DOI: 10.1016/j.biomaterials.2016.05.010] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2016] [Revised: 05/03/2016] [Accepted: 05/04/2016] [Indexed: 12/11/2022]
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Zhou C, Zha X, Shi P, Wei S, Wang H, Zheng R, Xia Q. Multiprotein bridging factor 2 regulates the expression of the fibroin heavy chain gene by interacting with Bmdimmed in the silkworm Bombyx mori. Insect Mol Biol 2016; 25:509-518. [PMID: 27110998 DOI: 10.1111/imb.12239] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Multiprotein bridging factor 2 (MBF2) was first isolated from the posterior silk gland of Bombyx mori. However, its function in B. mori is still unknown. Herein, MBF2 transcripts were detected mainly in the posterior silk gland and Malpighian tubules of B. mori larvae via a quantitative PCR analysis. An analysis of temporal expression patterns showed that the expression pattern of MBF2 was the opposite of that of the fibroin heavy chain (fibH) gene, as its expression was high during the fourth-instar moulting stage, decreased gradually during the fifth-instar feeding stage and disappeared at the end of the fifth-instar phase. Furthermore, bimolecular fluorescent complementation and Far-Western blot assays showed that MBF2 interacted with the basic helix-loop-helix transcription factor Bmdimmed. Dual luciferase reporter assays showed that MBF2 down-regulated the promoter activity of fibH and inhibited the effect of Bmdimmed (Bmdimm) on fibH expression. MBF2 expression was induced in silk glands after treatment with 20-hydroxyecdysone in vivo and in vitro. These findings suggest that MBF2 is a transcriptional repressor that is involved in controlling the regulation of the fibH gene in the posterior silk gland by interacting with Bmdimm.
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Affiliation(s)
- C Zhou
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing, China
| | - X Zha
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing, China
| | - P Shi
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing, China
| | - S Wei
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing, China
| | - H Wang
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing, China
| | - R Zheng
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing, China
| | - Q Xia
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing, China
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Affiliation(s)
- P. Shi
- Department of General Surgery, Shandong Provincial Hospital, Shandong Unniversity, Jinan, 250021; China
| | - R. Ma
- Department of Breast Surgery, Qilu Hospital, Shandong University, Jinan, 250012, China
| | - H.-D. Gao
- Department of Breast Surgery, Qilu Hospital, Shandong University, Jinan, 250012, China
| | - L.-Y. Jiang
- Department of Breast Surgery, Qilu Hospital, Shandong University, Jinan, 250012, China
| | - J.-Z. Sun2
- Department of Breast Surgery, Qilu Hospital, Shandong University, Jinan, 250012, China
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Li XW, Zhao WR, Liu YJ, Liu XH, Shi P, Li YS, Shi JL. Facile synthesis of manganese silicate nanoparticles for pH/GSH-responsive T1-weighted magnetic resonance imaging. J Mater Chem B 2016; 4:4313-4321. [DOI: 10.1039/c6tb00718j] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Manganese silicate nanoparticles were facilely synthesized and showed high potential as T1-MRI contrast agents for cancer diagnosis.
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Affiliation(s)
- X. W. Li
- Key Laboratory for Ultrafine Materials of Ministry of Education
- School of Materials Science and Engineering
- East China University of Science and Technology
- Shanghai 200237
- China
| | - W. R. Zhao
- Key Laboratory for Ultrafine Materials of Ministry of Education
- School of Materials Science and Engineering
- East China University of Science and Technology
- Shanghai 200237
- China
| | - Y. J. Liu
- State Key Laboratory of Bioreactor Engineering
- East China University of Science and Technology
- Shanghai 200237
- China
| | - X. H. Liu
- Department of Radiology
- Shanghai Cancer Center
- Fudan University
- Shanghai 200032
- China
| | - P. Shi
- State Key Laboratory of Bioreactor Engineering
- East China University of Science and Technology
- Shanghai 200237
- China
| | - Y. S. Li
- Key Laboratory for Ultrafine Materials of Ministry of Education
- School of Materials Science and Engineering
- East China University of Science and Technology
- Shanghai 200237
- China
| | - J. L. Shi
- Key Laboratory for Ultrafine Materials of Ministry of Education
- School of Materials Science and Engineering
- East China University of Science and Technology
- Shanghai 200237
- China
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Huang A, McAlpine C, Shi P, Werstuck G. THE ROLE OF ENDOPLASMIC RETICULUM STRESS AND GLYCOGEN SYNTHASE KINASE-3α/β IN ATHEROSCLEROTIC PROGRESSION AND REGRESSION. Can J Cardiol 2015. [DOI: 10.1016/j.cjca.2015.07.249] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
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Chen W, Zhuang G, Gao L, Gentle KW, Chen J, Shi P, Liu Y, Li Q, Wang ZJ. Density modulation experiment to determine transport coefficients on Joint-TEXT Tokamak. Rev Sci Instrum 2015; 86:023507. [PMID: 25725842 DOI: 10.1063/1.4906075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Density modulation experiments have been conducted on Joint-TEXT (J-TEXT) Tokamak Ohmic discharge to investigate particle transport based on a model with constant diffusion plus inward convection. Like the HCN interferometer, the newly developed three-wave polarimeter-interferometer system (POLARIS) is used to measure the perturbed density. The comparison of results between the HCN interferometer and POLARIS is given. The consistent results indicate the validity of the analysis scheme. At lower densities, the typical particle confinement time τp is found to increase with electron density, while it saturates at higher densities.
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Affiliation(s)
- W Chen
- State Key Laboratory of Advanced Electromagnetic Engineering and Technology, School of Electrical and Electronics Engineering, Huazhong University of Science and Technology, Wuhan 430074, People's Republic of China
| | - G Zhuang
- State Key Laboratory of Advanced Electromagnetic Engineering and Technology, School of Electrical and Electronics Engineering, Huazhong University of Science and Technology, Wuhan 430074, People's Republic of China
| | - L Gao
- State Key Laboratory of Advanced Electromagnetic Engineering and Technology, School of Electrical and Electronics Engineering, Huazhong University of Science and Technology, Wuhan 430074, People's Republic of China
| | - K W Gentle
- Institute of Fusion Studies, University of Texas at Austin, Austin, Texas 78712, USA
| | - J Chen
- State Key Laboratory of Advanced Electromagnetic Engineering and Technology, School of Electrical and Electronics Engineering, Huazhong University of Science and Technology, Wuhan 430074, People's Republic of China
| | - P Shi
- State Key Laboratory of Advanced Electromagnetic Engineering and Technology, School of Electrical and Electronics Engineering, Huazhong University of Science and Technology, Wuhan 430074, People's Republic of China
| | - Y Liu
- State Key Laboratory of Advanced Electromagnetic Engineering and Technology, School of Electrical and Electronics Engineering, Huazhong University of Science and Technology, Wuhan 430074, People's Republic of China
| | - Q Li
- State Key Laboratory of Advanced Electromagnetic Engineering and Technology, School of Electrical and Electronics Engineering, Huazhong University of Science and Technology, Wuhan 430074, People's Republic of China
| | - Z J Wang
- State Key Laboratory of Advanced Electromagnetic Engineering and Technology, School of Electrical and Electronics Engineering, Huazhong University of Science and Technology, Wuhan 430074, People's Republic of China
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Ye N, Liu C, Shi P. Metabolomics analysis of cervical cancer, cervical intraepithelial neoplasia and chronic cervicitis by 1H NMR spectroscopy. EUR J GYNAECOL ONCOL 2015; 36:174-180. [PMID: 26050356] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Metabolomics profiles of serum samples from women with chronic cervicitis, cervical intraepithelial neoplasia (CIN), and cervical cancer were characterized by proton nuclear magnetic resonance (1H NMR). These spectral profiles were subjected to partial least-squares discriminant analysis (PLS-DA), and good discriminations between cancerand non-cancer groups (chronic cervicitis and CIN) were achieved by multivariate modeling of serum profiles. The main metabolites contributing to these discriminations, as highlighted by multivariate analysis and confirmed by spectral integration, were formate, tyrosine, β-glucose, inositol, glycine, carnitine, glutamine, acetate, alanine, valine, isoleucine, and very-low-density lipoprotein (VLDL). Metabolomics analysis for chronic cervicitis, CIN, and cervical cancer is significant, which give a systemic metabolic response of these female diseases. The systemic metabolic response may be used to identify the potential biomarkers for the diseases.
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Shi P, Chen CQ, Zou WN. Propagation of shear elastic and electromagnetic waves in one dimensional piezoelectric and piezomagnetic composites. Ultrasonics 2015; 55:42-47. [PMID: 25200701 DOI: 10.1016/j.ultras.2014.08.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/19/2014] [Revised: 07/16/2014] [Accepted: 08/12/2014] [Indexed: 06/03/2023]
Abstract
Coupled shear (SH) elastic and electromagnetic (EM) waves propagating oblique to a one dimensional periodic piezoelectric and piezomagnetic composite are investigated using the transfer matrix method. Closed-form expression of the dispersion relations is derived. We find that the band structures of the periodic composite show simultaneously the features of phononic and photonic crystals. Strong interaction between the elastic and EM waves near the center of the Brillouin zone (i.e., phonon-polariton) is revealed. It is shown the elastic branch of the band structures is more sensitive to the piezoelectric effect while the phonon-polariton is more sensitive to the piezomagnetic effect of the composite.
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Affiliation(s)
- P Shi
- Institute for Advanced Study, Institute of Engineering Mechanics, Nanchang University, 330031 Nanchang, China
| | - C Q Chen
- Department of Engineering Mechanics, CNMM & AML, Tsinghua University, 100084 Beijing, China.
| | - W N Zou
- Institute for Advanced Study, Institute of Engineering Mechanics, Nanchang University, 330031 Nanchang, China
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Li Z, Huang H, Zhao H, Meng K, Zhao J, Shi P, Yang P, Luo H, Wang Y, Yao B. Genetic diversity and expression profiles of cysteine phytases in the sheep rumen during a feeding cycle. Lett Appl Microbiol 2014; 59:615-20. [PMID: 25146240 DOI: 10.1111/lam.12318] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [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: 05/23/2014] [Revised: 08/11/2014] [Accepted: 08/15/2014] [Indexed: 11/29/2022]
Abstract
UNLABELLED Cysteine phytase is the main phytate-degrading enzyme of ruminant animals. To explore the genetic diversity and dynamic expression profile of cysteine phytase in sheep rumen during a feeding cycle, four transcript (0, 4, 9 and 16 h after feeding) and one DNA (9 h after feeding) clone libraries were constructed, respectively. A total of 46 distinct gene fragments were identified, and most of these sequences had low identities (<60%) with known phytases. Great divergence was found in the constitution and abundance of genes at the genome and transcriptional levels, and the transcript data are more reliable to reflect the information of functional genes. Phylogenetic analysis indicated that the genes from uncultured bacteria instead of Firmicutes played the major phytate-degrading role. Further comparative analysis revealed the dynamic constitution of cysteine phytase genes in rumen at different time points. SIGNIFICANCE AND IMPACT OF THE STUDY Ruminal phytases, that are cysteine phytases, are novel in sequences and functions. Great divergence in the constitution and abundance of cysteine phytase genes at the genome and transcriptional levels suggested that transcript data are more reliable to reflect the information of functional genes. Phylogenetic and rarefaction analyses indicated that the cysteine phytase genes from uncultured bacteria instead of Firmicutes play the major phytate-degrading role in rumen, and their constitution is dynamic at different time points. This study provides a new insight into ruminal cysteine phytase genes and undermines their expression profiles over a whole feeding cycle.
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Affiliation(s)
- Z Li
- Key Laboratory for Feed Biotechnology of the Ministry of Agriculture, Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing, China; Key Laboratory of Industrial Fermentation Microbiology, Tianjin University of Science and Technology, Tianjin, China
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McCleskey TM, Shi P, Bauer E, Highland MJ, Eastman JA, Bi ZX, Fuoss PH, Baldo PM, Ren W, Scott BL, Burrell AK, Jia QX. Nucleation and growth of epitaxial metal-oxide films based on polymer-assisted deposition. Chem Soc Rev 2014; 43:2141-6. [DOI: 10.1039/c3cs60285k] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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