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Wu CZ, Shi ZY, Wu Z, Lin WJ, Chen WB, Jia XW, Xiang SC, Xu HH, Ge QW, Zou KA, Wang X, Chen JL, Wang PE, Yuan WH, Jin HT, Tong PJ. Mid-term outcomes of microfragmented adipose tissue plus arthroscopic surgery for knee osteoarthritis: A randomized, active-control, multicenter clinical trial. World J Stem Cells 2023; 15:1063-1076. [PMID: 38179213 PMCID: PMC10762526 DOI: 10.4252/wjsc.v15.i12.1063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/05/2023] [Revised: 12/04/2023] [Accepted: 12/20/2023] [Indexed: 12/26/2023] Open
Abstract
BACKGROUND Osteoarthritis (OA) is the most prevalent form of degenerative whole-joint disease. Before the final option of knee replacement, arthroscopic surgery was the most widely used joint-preserving surgical treatment. Emerging regenerative therapies, such as those involving platelet-rich plasma, mesenchymal stem cells, and microfragmented adipose tissue (MFAT), have been pushed to the forefront of treatment to prevent the progression of OA. Currently, MFAT has been successfully applied to treat different types of orthopedic diseases. AIM To assess the efficacy and safety of MFAT with arthroscopic surgery in patients with knee OA (KOA). METHODS A randomized, multicenter study was conducted between June 2017 and November 2022 in 10 hospitals in Zhejiang, China. Overall, 302 patients diagnosed with KOA (Kellgren-Lawrence grades 2-3) were randomized to the MFAT group (n = 151, were administered MFAT following arthroscopic surgery), or the control group (n = 151, were administered hyaluronic acid following arthroscopic surgery). The study outcomes were changes in the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) score, the visual analog scale (VAS) score, the Lequesne index score, the Whole-Organ Magnetic Resonance Imaging Score (WORMS), and safety over a 24-mo period from baseline. RESULTS The changes in the WOMAC score (including the three subscale scores), VAS pain score, and Lequesne index score at the 24-mo mark were significantly different in the MFAT and control groups, as well as when comparing values at the posttreatment visit and those at baseline (P < 0.001). The MFAT group consistently demonstrated significant decreases in the WOMAC pain scores and VAS scores at all follow-ups compared to the control group (P < 0.05). Furthermore, the WOMAC stiffness score, WOMAC function score, and Lequesne index score differed significantly between the groups at 12 and 24 mo (P < 0.05). However, no significant between-group differences were observed in the WORMS at 24 mo (P = 0.367). No serious adverse events occurred in both groups. CONCLUSION The MFAT injection combined with arthroscopic surgery treatment group showed better mid-term clinical outcomes compared to the control group, suggesting its efficacy as a therapeutic approach for patients with KOA.
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Affiliation(s)
- Cong-Zi Wu
- Institute of Orthopaedics and Traumatology of Zhejiang Province, The First Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou 310053, Zhejiang Province, China
| | - Zhen-Yu Shi
- Department of Orthopedic Surgery, The First Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou 310006, Zhejiang Province, China
| | - Zhen Wu
- Department of Orthopaedic Surgery, Tongde Hospital of Zhejiang Province, Hangzhou 310012, China
| | - Wen-Jun Lin
- Department of Orthopaedic Surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325015, Zhejiang Province, China
| | - Wei-Bo Chen
- Department of Orthopaedic Surgery, Ruian Hospital of Traditional Chinese Medicine, Wenzhou 325299, Zhejiang Province, China
| | - Xue-Wen Jia
- Department of Orthopaedics, Ningbo First Hospital, Ningbo 315010, Zhejiang Province, China
| | - Si-Cheng Xiang
- The First College of Clinical Medicine, Zhejiang Chinese Medical University, Hangzhou 310053, Zhejiang Province, China
| | - Hui-Hui Xu
- The First College of Clinical Medicine, Zhejiang Chinese Medical University, Hangzhou 310053, Zhejiang Province, China
| | - Qin-Wen Ge
- The First College of Clinical Medicine, Zhejiang Chinese Medical University, Hangzhou 310053, Zhejiang Province, China
| | - Kai-Ao Zou
- The First College of Clinical Medicine, Zhejiang Chinese Medical University, Hangzhou 310053, Zhejiang Province, China
| | - Xu Wang
- The First College of Clinical Medicine, Zhejiang Chinese Medical University, Hangzhou 310053, Zhejiang Province, China
| | - Jia-Li Chen
- Department of Orthopedic Surgery, The First Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou 310006, Zhejiang Province, China
| | - Ping-Er Wang
- Department of Orthopedic Surgery, The First Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou 310006, Zhejiang Province, China
| | - Wen-Hua Yuan
- Department of Orthopedic Surgery, The First Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou 310006, Zhejiang Province, China
| | - Hong-Ting Jin
- Department of Orthopedic Surgery, The First Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou 310006, Zhejiang Province, China
| | - Pei-Jian Tong
- Department of Orthopedic Surgery, The First Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou 310006, Zhejiang Province, China.
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Shi ZY, Lu JP, Liu TX, Zhang XJ, Jia YQ, Wang Y, Liu YH. [Risk Assessment of Heavy Metals in Dust Fall Around Reservoirs in Typical Ecologically Fragile Areas and Traceability Based on APCS-MLR Model]. Huan Jing Ke Xue 2023; 44:5344-5355. [PMID: 37827753 DOI: 10.13227/j.hjkx.202211183] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 10/14/2023]
Abstract
To assess the health risk status and pollution sources of heavy metals in the atmosphere of ecologically vulnerable areas, the surrounding area of Dahekou Reservoir in Xilingol League was selected as the study area. From 2021 to 2022, 12 monitoring points for atmospheric dust fall were collected for a period of one year. A total of 144 samples were collected to determine the contents of eight types of heavy metals, namely Cr, Ni, Pb, Cu, Zn, Mn, As, and Cd. The potential ecological index (Eri) and health risk assessment model were used to assess the risk level of atmospheric heavy metals on ecological security and human health. The analysis of enrichment factors, principal components, and the model of absolute principal component multiple linear regression (APCS-MLR) receptor were used to analyze the sources of heavy metal pollution qualitatively in the atmosphere of the study area. The results showed that:① the mean value of the comprehensive potential ecological risk of heavy metals in the annual atmospheric dust fall in the study area was at a high ecological risk, and only the Cd value was at a very high risk level among the heavy metals, whereas the remaining were at a slight risk. ② The results of the health risk showed that intake by hand, mouth, and skin contact were the main exposure routes, which led to non-carcinogenic and carcinogenic risks. Children were under non-carcinogenic and acceptable carcinogenic risks in different months. During those months, the main source of the risks was As. ③ Through enrichment factor analysis, principal component analysis, and APCS-MLR receptor model calculation, the results revealed that the proportion of wind-blown sources was the largest, accounting for 37.82%, and the contribution rates of coal combustion and traffic sources to Cu, Cd, Pb, and Zn were 73.01%, 40.22%, 70.31%, and 32.82%, respectively. The contribution rate of mining activities to As was 42.59%, while that of industrial sources of Cd was 22.01%; the contributions of other human activity sources of Cd, As, Pb, and Zn were 21.12%, 34.40%, 23.04%, and 32.15%, respectively.
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Affiliation(s)
- Zhen-Yu Shi
- College of Water Conservancy and Civil Engineering, Inner Mongolia Agricultural University, Hohhot 010018, China
| | - Jun-Ping Lu
- College of Water Conservancy and Civil Engineering, Inner Mongolia Agricultural University, Hohhot 010018, China
- Key Laboratory of Water Resources Protection and Utilization, Inner Mongolia Agricultural University, Hohhot 010018, China
| | - Ting-Xi Liu
- College of Water Conservancy and Civil Engineering, Inner Mongolia Agricultural University, Hohhot 010018, China
- Key Laboratory of Water Resources Protection and Utilization, Inner Mongolia Agricultural University, Hohhot 010018, China
| | - Xiao-Jing Zhang
- College of Water Conservancy and Civil Engineering, Inner Mongolia Agricultural University, Hohhot 010018, China
- Key Laboratory of Water Resources Protection and Utilization, Inner Mongolia Agricultural University, Hohhot 010018, China
| | - Yong-Qin Jia
- College of Water Conservancy and Civil Engineering, Inner Mongolia Agricultural University, Hohhot 010018, China
- Key Laboratory of Water Resources Protection and Utilization, Inner Mongolia Agricultural University, Hohhot 010018, China
| | - Yi Wang
- College of Water Conservancy and Civil Engineering, Inner Mongolia Agricultural University, Hohhot 010018, China
| | - Ying-Hui Liu
- College of Water Conservancy and Civil Engineering, Inner Mongolia Agricultural University, Hohhot 010018, China
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Cheng KJ, Shi ZY, Wang R, Jiang XF, Xiao F, Liu YF. 3D printed PEKK bone analogs with internal porosity and surface modification for mandibular reconstruction: An in vivo rabbit model study. Biomater Adv 2023; 151:213455. [PMID: 37148594 DOI: 10.1016/j.bioadv.2023.213455] [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: 11/28/2022] [Revised: 04/10/2023] [Accepted: 04/28/2023] [Indexed: 05/08/2023]
Abstract
Polyetheretherketone (PEEK) and its derivative polyetherketoneketone (PEKK) have been used as implant materials for spinal fusing and enjoyed their success for many years because of their mechanical properties similar to bone and their chemical inertness. The osseointegration of PEEKs is datable. Our strategy was to use custom-designed and 3D printed bone analogs with an optimized structure design and a modified PEKK surface to augment bone regeneration for mandibular reconstruction. Those bone analogs had internal porosities and a bioactive titanium oxide surface coating to promote osseointegration between native bone and PEKK analogs. Our workflow was 3D modeling, bone analog designing, structural optimization, mechanical analysis via finite element modeling, 3D printing of bone analogs and subsequently, an in vivo rabbit model study on mandibular reconstruction and histology evaluation. Our results showed the finite element analysis validated that the porous PEKK analogs provided a mechanical-sound structure for functional loadings. The bone analogs offered a perfect replacement for segmented bones in the terms of shape, form and volume for surgical reconstruction. The in vivo results showed that bioactive titanium oxide coating enhanced new bone in-growth into the porous PEKK analogs. We have validated our new approach in surgical mandibular reconstruction and we believe our strategy has a significant potential to improve mechanical and biological outcomes for patients who require mandibular reconstruction procedures.
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Affiliation(s)
- Kang-Jie Cheng
- College of Mechanical Engineering, Zhejiang University of Technology, Hangzhou 310023, China; Key Laboratory of Special Purpose Equipment and Advanced Processing Technology, Ministry of Education and Zhejiang Province, Zhejiang University of Technology, Hangzhou 310023, China; Collaborative Innovation Center of High-end Laser Manufacturing Equipment (National "2011 Plan"), Zhejiang University of Technology, Hangzhou 310023, China
| | - Zhen-Yu Shi
- College of Mechanical Engineering, Zhejiang University of Technology, Hangzhou 310023, China; Key Laboratory of Special Purpose Equipment and Advanced Processing Technology, Ministry of Education and Zhejiang Province, Zhejiang University of Technology, Hangzhou 310023, China; Collaborative Innovation Center of High-end Laser Manufacturing Equipment (National "2011 Plan"), Zhejiang University of Technology, Hangzhou 310023, China
| | - Russell Wang
- Department of Comprehensive Care, Case Western Reserve University School of Dental Medicine, Cleveland, OH 44106-4905, USA
| | - Xian-Feng Jiang
- College of Mechanical Engineering, Zhejiang University of Technology, Hangzhou 310023, China; Key Laboratory of Special Purpose Equipment and Advanced Processing Technology, Ministry of Education and Zhejiang Province, Zhejiang University of Technology, Hangzhou 310023, China
| | - Fan Xiao
- College of Mechanical Engineering, Zhejiang University of Technology, Hangzhou 310023, China; Key Laboratory of Special Purpose Equipment and Advanced Processing Technology, Ministry of Education and Zhejiang Province, Zhejiang University of Technology, Hangzhou 310023, China; Collaborative Innovation Center of High-end Laser Manufacturing Equipment (National "2011 Plan"), Zhejiang University of Technology, Hangzhou 310023, China
| | - Yun-Feng Liu
- College of Mechanical Engineering, Zhejiang University of Technology, Hangzhou 310023, China; Key Laboratory of Special Purpose Equipment and Advanced Processing Technology, Ministry of Education and Zhejiang Province, Zhejiang University of Technology, Hangzhou 310023, China; Collaborative Innovation Center of High-end Laser Manufacturing Equipment (National "2011 Plan"), Zhejiang University of Technology, Hangzhou 310023, China.
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Hou WH, Song SJ, Shi ZY, Jin ML. [Clinicopathological features of Helicobacter pylori-negative early gastric cancer]. Beijing Da Xue Xue Bao Yi Xue Ban 2023; 55:292-298. [PMID: 37042140 PMCID: PMC10091244] [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: 04/13/2023]
Abstract
OBJECTIVE To investigate the clinicopathological features of Helicobacter pylori (Hp)-negative early gastric cancer. METHODS The clinicopathological data of 30 cases of Hp-negative early gastric cancer were collected retrospectively at Pingdingshan Medical District, 989 Hospital of PLA Joint Logistics Support Force, and Beijing Chaoyang Hospital, Capital Medical University, from 2009 to 2021, and the histomorphological characteristics and immunophenotype were observed, and combined with the literature to explore. RESULTS The median age of 30 patients was 58.5 years (range: 21-80 years), including 13 males and 17 females. The upper part of the stomach was 13 cases, the middle part of the sto-mach was 9 cases, and the lower part of the stomach was 8 cases. The median diameter of the tumor was 11 mm (range: 1-30 mm). According to the Paris classification, 9 cases were 0-Ⅱa, 7 cases were 0-Ⅱb, and 14 cases were 0-Ⅱc. Endoscopic examination showed that 18 cases of lesions were red, 12 cases of lesions were faded or white, and microvascular structures and microsurface structures were abnormal. In all the cases, collecting venules were regularly arranged in the gastric body and corner mucosa. There were 18 cases of well differentiated adenocarcinoma in the mucosa. The tumor presented glandular tubular-like and papillary structure, with dense glands and disordered arrangement; the cells were cuboidal or columnar, with increased nuclear chromatin and loss of nuclear polarity, and most of them expressed gastric mucin. Signet-ring cell carcinoma was found in 7 cases, all the cancer tissues were composed of signet-ring cells, and the cancer cells were mainly distributed in the middle layer to the surface layer of mucosa. Gastric oxyntic gland adenoma (gastric adenocarcinoma of the fundic gland type confined to mucosa) in 2 cases, gastric adenocarcinoma of the fundic gland type in 2 cases, and gastric adenocarcinoma of fundic gland mucosa type in 1 case. The tumor tissue was composed of branching tubular glands, except 1 case of mucosal surface epithelium was partially neoplastic, the other 4 cases of mucosal surface epi-thelium were all non-neoplastic; the cells were arranged in a single layer, and the nucleus was close to the basal side, and the nucleus was only slightly atypical. Pepsinogen I and H+/K+ ATPase were positive in 5 cases of gastric fundus gland type tumors, and 1 case of foveolar-type tumor cells at the surface and depth of mucosa showed MUC5AC positive. The gastric mucosa adjacent to cancer was generally normal in all cases, without atrophy, intestinal metaplasia and Hp. CONCLUSION Hp-negative early gastric cancer is a heterogeneous disease group with various histological types, and tubular adenocarcinoma and signet-ring cell carcinoma are common. Tubular adenocarcinoma mostly occurs in the elderly and the upper to middle part of the stomach, while signet-ring cell carcinoma mostly occurs in young and middle-aged people and the lower part of the stomach. Gastric neoplasm of the fundic gland type is relatively rare.
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Affiliation(s)
- W H Hou
- Department of Pathology, Pingdingshan Medical District, 989 Hospital of PLA Joint Logistics Support Force, Pingdingshan 467099, Henan, China
| | - S J Song
- Department of Gastroenterology, Pingdingshan Medical District, 989 Hospital of PLA Joint Logistics Support Force, Pingdingshan 467099, Henan, China
| | - Z Y Shi
- Department of Pathology, Beijing Chaoyang Hospital, Capital Medical University, Beijing 100020, China
| | - M L Jin
- Department of Pathology, Beijing Chaoyang Hospital, Capital Medical University, Beijing 100020, China
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Wang Y, Shi ZY, Shi Q, Wang S, Zhang MC, Shen R, He Y, Qiu HL, Yi HM, Dong L, Wang L, Cheng S, Xu PP, Zhao WL. [Clinicopathologic characteristics and prognostic analysis of testicular diffuse large B-cell lymphoma]. Zhonghua Xue Ye Xue Za Zhi 2023; 44:321-327. [PMID: 37357002 DOI: 10.3760/cma.j.issn.0253-2727.2023.04.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Subscribe] [Scholar Register] [Indexed: 06/27/2023]
Abstract
Objective: To analyze the clinicopathologic characteristics and prognosis of testicular diffuse large B-cell lymphoma (DLBCL) . Methods: A retrospective analysis was performed on 68 patients with testicular DLBCL admitted to Ruijin Hospital affiliated to Shanghai Jiao Tong University School of Medicine from October 2001 to April 2020. The gene mutation profile was evaluated by targeted sequencing (55 lymphoma-related genes) , and prognostic factors were analyzed. Results: A total of 68 patients were included, of whom 45 (66.2% ) had primary testicular DLBCL and 23 (33.8% ) had secondary testicular DLBCL. The proportion of secondary testicular DLBCL patients with Ann Arbor stage Ⅲ-Ⅳ (P<0.001) , elevated LDH (P<0.001) , ECOG score ≥ 2 points (P=0.005) , and IPI score 3-5 points (P<0.001) is higher than that of primary testicular DLBCL patients. Sixty-two (91% ) patients received rituximab in combination with cyclophosphamide, adriamycin, vincristine, and prednisone (R-CHOP) -based first-line regimen, whereas 54 cases (79% ) underwent orchiectomy prior to chemotherapy. Patients with secondary testicular DLBCL had a lower estimated 5-year progression-free survival (PFS) rate (16.5% vs 68.1% , P<0.001) and 5-year overall survival (OS) rate (63.4% vs 74.9% , P=0.008) than those with primary testicular DLBCL, and their complete remission rate (57% vs 91% , P=0.003) was also lower than that of primary testicular DLBCL. The ECOG scores of ≥2 (PFS: P=0.018; OS: P<0.001) , Ann Arbor stages Ⅲ-Ⅳ (PFS: P<0.001; OS: P=0.018) , increased LDH levels (PFS: P=0.015; OS: P=0.006) , and multiple extra-nodal involvements (PFS: P<0.001; OS: P=0.013) were poor prognostic factors in testicular DLBCL. Targeted sequencing data in 20 patients with testicular DLBCL showed that the mutation frequencies of ≥20% were PIM1 (12 cases, 60% ) , MYD88 (11 cases, 55% ) , CD79B (9 cases, 45% ) , CREBBP (5 cases, 25% ) , KMT2D (5 cases, 25% ) , ATM (4 cases, 20% ) , and BTG2 (4 cases, 20% ) . The frequency of mutations in KMT2D in patients with secondary testicular DLBCL was higher than that in patients with primary testicular DLBCL (66.7% vs 7.1% , P=0.014) and was associated with a lower 5-year PFS rate in patients with testicular DLBCL (P=0.019) . Conclusion: Patients with secondary testicular DLBCL had worse PFS and OS than those with primary testicular DLBCL. The ECOG scores of ≥2, Ann Arbor stages Ⅲ-Ⅳ, increased LDH levels, and multiple extra-nodal involvements were poor prognostic factors in testicular DLBCL. PIM1, MYD88, CD79B, CREBBP, KMT2D, ATM, and BTG2 were commonly mutated genes in testicular DLBCL, and the prognosis of patients with KMT2D mutations was poor.
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Affiliation(s)
- Y Wang
- State Key Laboratory of Medical Genomics, Shanghai Institute of Hematology, Shanghai Rui Jin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Z Y Shi
- State Key Laboratory of Medical Genomics, Shanghai Institute of Hematology, Shanghai Rui Jin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Q Shi
- State Key Laboratory of Medical Genomics, Shanghai Institute of Hematology, Shanghai Rui Jin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - S Wang
- State Key Laboratory of Medical Genomics, Shanghai Institute of Hematology, Shanghai Rui Jin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - M C Zhang
- State Key Laboratory of Medical Genomics, Shanghai Institute of Hematology, Shanghai Rui Jin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - R Shen
- State Key Laboratory of Medical Genomics, Shanghai Institute of Hematology, Shanghai Rui Jin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Y He
- State Key Laboratory of Medical Genomics, Shanghai Institute of Hematology, Shanghai Rui Jin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - H L Qiu
- State Key Laboratory of Medical Genomics, Shanghai Institute of Hematology, Shanghai Rui Jin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - H M Yi
- State Key Laboratory of Medical Genomics, Shanghai Institute of Hematology, Shanghai Rui Jin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - L Dong
- State Key Laboratory of Medical Genomics, Shanghai Institute of Hematology, Shanghai Rui Jin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - L Wang
- State Key Laboratory of Medical Genomics, Shanghai Institute of Hematology, Shanghai Rui Jin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - S Cheng
- State Key Laboratory of Medical Genomics, Shanghai Institute of Hematology, Shanghai Rui Jin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - P P Xu
- State Key Laboratory of Medical Genomics, Shanghai Institute of Hematology, Shanghai Rui Jin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - W L Zhao
- State Key Laboratory of Medical Genomics, Shanghai Institute of Hematology, Shanghai Rui Jin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
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Huo YJ, Zhang MC, Shi Q, Qin W, Shi ZY, Wang L, Cheng S, Xu PP, Zhao WL. [Clinical characteristics and prognosis of primary and secondary diffuse large B-cell lymphoma of the pancreas]. Zhonghua Xue Ye Xue Za Zhi 2023; 44:55-61. [PMID: 36987724 PMCID: PMC10067375 DOI: 10.3760/cma.j.issn.0253-2727.2023.01.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Subscribe] [Scholar Register] [Indexed: 03/30/2023]
Abstract
Objective: To analyze the clinical characteristics and prognosis of primary and secondary pancreatic diffuse large B-cell lymphoma (DLBCL) . Methods: Clinical data of patients with pancreatic DLBCL admitted at Shanghai Rui Jin Hospital affiliated with Shanghai Jiao Tong University School of Medicine from April 2003 to June 2020 were analyzed. Gene mutation profiles were evaluated by targeted sequencing (55 lymphoma-related genes). Univariate and multivariate Cox regression models were used to evaluate the prognostic factors of overall survival (OS) and progression-free survival (PFS) . Results: Overall, 80 patients were included; 12 patients had primary pancreatic DLBCL (PPDLBCL), and 68 patients had secondary pancreatic DLBCL (SPDLBCL). Compared with those with PPDLBCL, patients with SPDLBCL had a higher number of affected extranodal sites (P<0.001) and had higher IPI scores (P=0.013). There was no significant difference in the OS (P=0.120) and PFS (P=0.067) between the two groups. Multivariate analysis indicated that IPI intermediate-high/high risk (P=0.025) and double expressor (DE) (P=0.017) were independent adverse prognostic factors of OS in patients with pancreatic DLBCL. IPI intermediate-high/high risk (P=0.021) was an independent adverse prognostic factor of PFS in patients with pancreatic DLBCL. Targeted sequencing of 29 patients showed that the mutation frequency of PIM1, SGK1, BTG2, FAS, MYC, and MYD88 in patients with pancreatic DLBCL were all >20%. PIM1 (P=0.006 for OS, P=0.032 for PFS) and MYD88 (P=0.001 for OS, P=0.017 for PFS) mutations were associated with poor OS and PFS in patients with SPDLBCL. Conclusion: There was no significant difference in the OS and PFS between patients with PPDLBCL and those with SPDLBCL. IPI intermediate-high/high risk and DE were adverse prognostic factors of pancreatic DLBCL. PIM1, SGK1, BTG2, FAS, MYC, and MYD88 were common mutations in pancreatic DLBCL. PIM1 and MYD88 mutations indicated worse prognosis.
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Affiliation(s)
- Y J Huo
- State Key Laboratory of Medical Genomics, Shanghai Institute of Hematology, Shanghai Rui Jin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - M C Zhang
- State Key Laboratory of Medical Genomics, Shanghai Institute of Hematology, Shanghai Rui Jin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Q Shi
- State Key Laboratory of Medical Genomics, Shanghai Institute of Hematology, Shanghai Rui Jin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - W Qin
- State Key Laboratory of Medical Genomics, Shanghai Institute of Hematology, Shanghai Rui Jin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Z Y Shi
- State Key Laboratory of Medical Genomics, Shanghai Institute of Hematology, Shanghai Rui Jin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - L Wang
- State Key Laboratory of Medical Genomics, Shanghai Institute of Hematology, Shanghai Rui Jin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - S Cheng
- State Key Laboratory of Medical Genomics, Shanghai Institute of Hematology, Shanghai Rui Jin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - P P Xu
- State Key Laboratory of Medical Genomics, Shanghai Institute of Hematology, Shanghai Rui Jin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - W L Zhao
- State Key Laboratory of Medical Genomics, Shanghai Institute of Hematology, Shanghai Rui Jin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
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Shi ZY, Zhang BH, Sun JC, Liu XZ, Shen ZA. [Research advances on the role and mechanism of epidermal stem cells in skin wound repair]. Zhonghua Shao Shang Yu Chuang Mian Xiu Fu Za Zhi 2022; 38:854-858. [PMID: 36177590 DOI: 10.3760/cma.j.cn501120-20211109-00382] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Epidermal stem cells play an pivotal role in skin self-renewal, wound repair, and re-epithelialization process. The emergence of new technologies and concepts such as single-cell sequencing and gene knockout further revealed a new mechanism of epidermal stem cells in epidermal self-renewal and wound repair, providing new ideas for wound repair. In this review, the mechanisms of proliferation, differentiation, and migration of epidermal stem cells are discussed. Combined with the analysis of researches on stem cell heterogeneity and cell plasticity, the physiological function of epidermal stem cells can be further understood. The application advances of epidermal stem cells in wound repair is also summarized, which would provide some advice for workers engaged in clinical and basic research on wound repair.
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Affiliation(s)
- Z Y Shi
- Department of Burns and Plastic Surgery, the Fourth Medical Center of PLA General Hospital, Beijing 100048, China
| | - B H Zhang
- Department of Burns and Plastic Surgery, the Fourth Medical Center of PLA General Hospital, Beijing 100048, China
| | - J C Sun
- Department of Burns and Plastic Surgery, the Fourth Medical Center of PLA General Hospital, Beijing 100048, China
| | - X Z Liu
- Department of Burns and Plastic Surgery, the Fourth Medical Center of PLA General Hospital, Beijing 100048, China
| | - Z A Shen
- Department of Burns and Plastic Surgery, the Fourth Medical Center of PLA General Hospital, Beijing 100048, China
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Hou WH, Wang XZ, Shi ZY, Li FL, Fang ZH, Sun XL, Liu YF, Wang LN, Jin ML. [Clinicopathological features of early gastric cancer after Helicobacter pylori eradication]. Zhonghua Bing Li Xue Za Zhi 2022; 51:701-707. [PMID: 35922158 DOI: 10.3760/cma.j.cn112151-20211129-00866] [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 clinicopathological features of early gastric cancers after Helicobacter pylori (H. pylori) eradication. Methods: The clinical data of 26 cases of gastric cancer that were diagnosed after H. pylori eradication and 45 cases without H. pylori eradication in the 989 Hospital of the Joint Logistics Support Force of the People's Liberation Army (the former 152 Hospital), Pingdingshan, China from 2013 to 2021 were collected. The histological, immunophenotypic and clinical characteristics of the two groups were compared, and discussed with review of the related literature. Results: Among the gastric cancer patients with H. pylori eradication, there were 20 males and 6 females with a median age of 65 years (range 53 to 77 years). The cancer involved the upper part of the stomach in 12 cases, the middle part of the stomach in 4 cases, and the lower part of the stomach in 10 cases. The median diameter of the tumors was 12 mm (range 4-29 mm). According to the Paris Classification, 4 cases were 0-Ⅱa, 4 cases were 0-Ⅱb, 18 cases were 0-Ⅱc. White light endoscopy showed that the lesions were reddish to yellowish. The lesion boundary was clear in 12 cases and was unclear or gastritis-like changes in 14 cases, while the irregular microvascular structure and microsurface structure, as well as the relatively visible spinous boundary, were visible under narrow-band imaging. There were 20 cases of well-differentiated tubular adenocarcinoma, 4 cases of highly to moderately differentiated tubular adenocarcinoma, and 2 cases of well-differentiated tubular adenocarcinoma with papillary adenocarcinoma. Compared with gastric cancers without H. pylori eradication, gastric cancers diagnosed after H. pylori eradication was associated with lower nucleus-cytoplasm ratio (<50%), normal epithelial coverage on the cancer surface, mild atypical epithelial coverage on the cancer surface, elongation of non-cancerous glands in the cancer tissue and subepithelial progression of cancerous glands were higher (P<0.05). The cellular immunophenotypes were gastric type in 6 cases, intestinal type in 4 cases and gastrointestinal mixed type in 16 cases. Conclusions: The early gastric cancers diagnosed after H. pylori eradication are more subtle clinically and mostly well-differentiated tubular adenocarcinoma. The important morphological features of gastric cancer diagnosed after H. pylori eradication are decreased cytological atypia and overlying normal epithelium or mildly atypical epithelium of the cancer. Understanding and recognizing these morphological features are helpful to make correct endoscopic and pathological diagnoses.
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Affiliation(s)
- W H Hou
- Department of Pathology, Pingdingshan Medical District (former 152 Central Hospital), 989 Hospital of People's Liberation Army Joint Logistic Support Force, Pingdingshan 467099, China
| | - X Z Wang
- Department of Gastroenterology, Pingdingshan Medical District (former 152 Central Hospital), 989 Hospital of People's Liberation Army Joint Logistic Support Force, Pingdingshan 467099, China
| | - Z Y Shi
- Department of Pathology, Beijing Chaoyang Hospital, Capital Medical University, Beijing 100020, China
| | - F L Li
- Department of Pathology, 989 Hospital of People's Liberation Army Joint Logistic Support Force (former 150 Central Hospital), Luoyang 471031, China
| | - Z H Fang
- Department of Gastroenterology, Pingdingshan Medical District (former 152 Central Hospital), 989 Hospital of People's Liberation Army Joint Logistic Support Force, Pingdingshan 467099, China
| | - X L Sun
- Department of Gastroenterology, Pingdingshan Medical District (former 152 Central Hospital), 989 Hospital of People's Liberation Army Joint Logistic Support Force, Pingdingshan 467099, China
| | - Y F Liu
- Department of Pathology, Pingdingshan Medical District (former 152 Central Hospital), 989 Hospital of People's Liberation Army Joint Logistic Support Force, Pingdingshan 467099, China
| | - L N Wang
- Department of Pathology, Pingdingshan Medical District (former 152 Central Hospital), 989 Hospital of People's Liberation Army Joint Logistic Support Force, Pingdingshan 467099, China
| | - M L Jin
- Department of Pathology, Beijing Chaoyang Hospital, Capital Medical University, Beijing 100020, China
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9
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Shi ZY, Hou WH, Wang Y, Tian ZQ, Cao Q, Guo XM, Lu J, Li X, Chen H, Jin ML. [The value of Alcian blue periodic acid Schiff staining and Ki-67 expression in diagnosing gastric reactive epithelial hyperplasia and dysplasia]. Zhonghua Bing Li Xue Za Zhi 2022; 51:713-718. [PMID: 35922160 DOI: 10.3760/cma.j.cn112151-20211125-00860] [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 clinicopathological characteristics of reactive epithelial hyperplasia and dysplasia in the stomach, as well as the clinical value of mucin special staining and proliferating cell nuclear antigen (Ki-67) in distinguishing the two gastric lesions. Methods: The clinical pathological data of 63 patients with gastric reactive epithelial hyperplasia, 54 patients with low-grade dysplasia, and 63 patients with high-grade dysplasia diagnosed from May 2018 to May 2021 in Beijing Chaoyang Hospital, Capital Medical University, Beijing, China were analyzed. Alcian blue periodic acid Schiff (AB-PAS) and Ki-67 staining were performed to examine the mucin staining pattern, number of Ki-67 positive cells, Ki-67 staining patterns in the three groups of lesions, and histopathologic characteristics. Results: The positive rates of AB-PAS in the reactive epithelial hyperplasia and gastric dysplasia groups were 87.3%(55/63) and 10.3%(12/117), respectively. The expression of AB-PAS in the reactive epithelial hyperplasia was gradually increased from the base to the surface of the epithelium. In low-grade dysplasia and high-grade dysplasia, there was no mucin present in the dysplasia epithelium. The difference between the two groups was statistically significant (P<0.01). The positive rate of Ki-67 in the epithelial reactive hyperplasia (>10%) was 81.0% (51/63), and the positive cells were mainly located in the neck and middle parts of the mucosal glands (58/63, 92.1%). In the low-grade dysplasia group, the positive rate of Ki-67 (>10%) was 90.7%(49/54); the positive cells were mainly located in the upper mucosa (33/54, 61.1%), showing a banded distribution pattern; in the high-grade dysplasia group, the positive rate (>10%) was 95.2%(60/63), and the positive cells were mainly located in the whole mucosa (49/63, 77.8%), showing a diffuse/diffuse scattered distribution pattern. The three groups had statistically different rates and distribution patterns of Ki-67 expression (P<0.01). Conclusion: The gastric epithelial reactive hyperplasia and dysplasia can be differentiated using clinicopathological features, AB-PAS staining and Ki-67 expression pattern.
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Affiliation(s)
- Z Y Shi
- Department of Pathology, Beijing Chaoyang Hospital, Capital Medical University, Beijing 100020, China
| | - W H Hou
- Department of Pathology, People's Liberation Army Joint Logistics Support Force 989 Hospital (formerly 152 Hospital), Pingdingshan 467099, China
| | - Y Wang
- Department of Pathology, Beijing Chaoyang Hospital, Capital Medical University, Beijing 100020, China
| | - Z Q Tian
- Department of Pathology, Beijing Chaoyang Hospital, Capital Medical University, Beijing 100020, China
| | - Q Cao
- Department of Pathology, Beijing Chaoyang Hospital, Capital Medical University, Beijing 100020, China
| | - X M Guo
- Department of Pathology, Beijing Chaoyang Hospital, Capital Medical University, Beijing 100020, China
| | - J Lu
- Department of Pathology, Beijing Chaoyang Hospital, Capital Medical University, Beijing 100020, China
| | - X Li
- Department of Pathology, Beijing Chaoyang Hospital, Capital Medical University, Beijing 100020, China
| | - H Chen
- Department of Pathology, Beijing Chaoyang Hospital, Capital Medical University, Beijing 100020, China
| | - M L Jin
- Department of Pathology, Beijing Chaoyang Hospital, Capital Medical University, Beijing 100020, China
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10
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Hou WH, Duan XK, Hou WD, Liu YX, Wang JH, Wang XZ, Ma LJ, Shi ZY, Li QM, Jin ML. [Clinicopathological features of very well-differentiated adenocarcinoma of the stomach]. Zhonghua Bing Li Xue Za Zhi 2022; 51:96-102. [PMID: 35152626 DOI: 10.3760/cma.j.cn112151-20210723-00525] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Objective: To investigate the clinicopathological features of very well-differentiated adenocarcinoma (VWDA) of the stomach. Methods: The clinicopathological data of 12 cases of VWDA of the stomach were collected retrospectively at the People's Liberation Army Joint Logistics Support Force 989 Hospital (formerly 152 Hospital), Pingdingshan, China, from January 2013 to May 2021. The histological characteristics and immunophenotypes were observed and analyzed with review of current literature. Results: There were 8 males and 4 females with a median age of 63 years (range 47 to 80 years). The tumor involved in the upper part of the stomach in 6 cases, the middle part in 2 cases, and the lower part in 4 cases. The median diameter of the tumors was 17 mm (range 5-65 mm). The tumor cells were similar to absorbent cells, Paneth cells, foveolar epithelial cells, and goblet cells. The cells were arranged in a single layer, and the nuclei were slightly enlarged and located at the base. The nuclei were fusiform to slightly irregular, with loss of nuclear polarity. Early tubular VWDA was found in 9 cases, and the tumor glands were similar to intestinal metaplasia. In two cases the tumors infiltrated into the submucosa. The lesions in the mucosa and submucosa showed the glands with cystic expansion, bending, branching, spiky and abortive growth pattern. One case of early papillary tubular VWDA was confined to the mucosal layer and composed of foveolar-type epithelial cells. There were two cases of advanced papillary tubular VWDA, which consisted of foveolar-type epithelial, pyloric glands, or mucinous neck cells and were associated with intra-lymphatic cancer embolus and lymph node metastases. Background mucosal atrophy and intestinal metaplasia were observed in all cases. Immunohistochemical staining showed intestinal type VWDA in 1 case, mixed gastrointestinal type VWDA in 9 cases, and gastric type VWDA in 2 cases. The Ki-67 proliferation index of 8 cases limited to the mucosa was 40%-70%, 2 cases of infiltration into the submucosa and 2 cases of advanced carcinoma was 10%-25%. All the tumors showed a wild type of p53 protein expression pattern and negative HER2. Adenocarcinoma or high-grade dysplasia was diagnosed on preoperative biopsy in 5 cases, and chronic atrophic gastritis with intestinal metaplasia in 7 cases. The median follow-up time was 28 months (range 12-72 months). No recurrence was found in the 10 patients with early cancer. Of the two patients with advanced carcinoma, one patient had lung metastases and the other died. Conclusions: Gastric VWDA is a rare low-grade malignancy with structural features of highly differentiated adenocarcinoma and extremely low cytological atypia. The diagnostic value of structural abnormality is significantly greater than cytological atypia. The invasive growth of irregular glands in the deep mucosa and submucosa is reliable evidence for diagnosis. The diagnosis of intramucosal VWDA is challenging and very difficult in some biopsy specimens.
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Affiliation(s)
- W H Hou
- Department of Pathology, People's Liberation Army Joint Logistics Support Force 989 Hospital (formerly 152 Hospital), Pingdingshan 467099, China
| | - X K Duan
- Department of Gastroenterology, People's Liberation Army Joint Logistics Support Force 989 Hospital (formerly 152 Hospital), Pingdingshan 467099, China
| | - W D Hou
- Department of Endocrinology, Pingdingshan Municipal First People's Hospital, Henan Province, Pingdingshan 467099, China
| | - Y X Liu
- Department of Endocrinology, Pingdingshan Municipal First People's Hospital, Henan Province, Pingdingshan 467099, China
| | - J H Wang
- Department of Endocrinology, Pingdingshan Municipal First People's Hospital, Henan Province, Pingdingshan 467099, China
| | - X Z Wang
- Department of Gastroenterology, People's Liberation Army Joint Logistics Support Force 989 Hospital (formerly 152 Hospital), Pingdingshan 467099, China
| | - L J Ma
- Department of Gastroenterology, People's Liberation Army Joint Logistics Support Force 989 Hospital (formerly 152 Hospital), Pingdingshan 467099, China
| | - Z Y Shi
- Department of Pathology, Beijing Chaoyang Hospital, Capital Medical University, Beijing 100020, China
| | - Q M Li
- Department of Pathology, People's Liberation Army Joint Logistics Support Force 989 Hospital (formerly 152 Hospital), Pingdingshan 467099, China
| | - M L Jin
- Department of Pathology, Beijing Chaoyang Hospital, Capital Medical University, Beijing 100020, China
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11
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Zhao ZY, Shi ZY, Zhang ZZ, Li YH, Zeng XH, Chen YX, Yao N, Zhou M, Su H, Wang QH, Jin LL. Anti-hypertensive and endothelia protective effects of Fufang Qima capsule on primary hypertension via adiponectin/adenosine monophosphate activated protein kinase pathway. J TRADIT CHIN MED 2021; 41:919-926. [PMID: 34939388 DOI: 10.19852/j.cnki.jtcm.20210618.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
OBJECTIVE To investigate the potential mechanism of the vascular remodeling effect and provide additional information about anti-hypertension activity of Fufang Qima capsule. METHODS Spontaneous hypertensive rats (SHRs) were used to study the underlying mechanism of the anti-hypertension activity of QM. In this study, SHRs were randomly divided into 5 groups: model group, Telmisartan group (7.2 mg/kg, p.o.), and three QM groups (0.9298, 1.8596, and 3.7192 g/kg, p.o.). Wistar Kyoto rats (WKY) were used as normal control group. Blood pressure (BP), aorta, perivascular adipose tissue (PVAT) histology were investigated to evaluate the effect of QM. Nitric oxide (NO) and endothelial nitric oxide synthase (eNOS) phosphorylation were measured. Adiponectin (APN) secretion, as well as APN signal pathway proteins including APN, adiponectin receptors (R1 and R2) and adenosine 5'-monophosphate-activated protein kinase (AMPK) were all analyzed. RESULTS QM significantly reduced BP and ameliorated the vascular pathological change, i.e. intima media thicken and collagen fiber hyperplasia. Meanwhile, QM increased concentration of NO and the phosphorylation of eNOS in the aorta. The anti-hypertensive and endothelia-protective effect of QM could be attributed to activating APN/ AMPK pathway by up-regulating the expression of APN in PVAT and APN Receptor 2, AMPKα and phosphorylated AMPKα in the aorta. CONCLUSION The QM alleviation effect mechanism for primary hypertension was via modulating the APN/AMPK signal pathway.
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Affiliation(s)
- Zhi-Yue Zhao
- Department of Cardiovascular, The Fifth Clinical Medical College of Guangzhou University of Chinese Medicine (Guangdong Second Traditional Chinese Medicine Hospital), Guangzhou 510095, China
| | - Zhen-Yu Shi
- Department of Cardiovascular, The Fifth Clinical Medical College of Guangzhou University of Chinese Medicine (Guangdong Second Traditional Chinese Medicine Hospital), Guangzhou 510095, China
| | - Zhen-Zhen Zhang
- Department of Cardiovascular, The Fifth Clinical Medical College of Guangzhou University of Chinese Medicine (Guangdong Second Traditional Chinese Medicine Hospital), Guangzhou 510095, China
| | - Ying-Hong Li
- Department of the Electrocardiogram, The Fifth Clinical Medical College of Guangzhou University of Chinese Medicine (Guangdong Second Traditional Chinese Medicine Hospital), Guangzhou 510095, China
| | - Xiao-Hui Zeng
- Department of Science and Education, The Fifth Clinical Medical College of Guangzhou University of Chinese Medicine (Guangdong Second Traditional Chinese Medicine Hospital), Guangzhou 510095, China
| | - Yu-Xing Chen
- Pharmacological Laboratory, The Fifth Clinical Medical College of Guangzhou University of Chinese Medicine (Guangdong Second Traditional Chinese Medicine Hospital), Guangzhou 510095, China
| | - Nan Yao
- Pharmacological Laboratory, The Fifth Clinical Medical College of Guangzhou University of Chinese Medicine (Guangdong Second Traditional Chinese Medicine Hospital), Guangzhou 510095, China
| | - Min Zhou
- Department of Emergency, The Fifth Clinical Medical College of Guangzhou University of Chinese Medicine (Guangdong Second Traditional Chinese Medicine Hospital), Guangzhou 510095, China
| | - Hui Su
- Department of Cardiovascular, The Fifth Clinical Medical College of Guangzhou University of Chinese Medicine (Guangdong Second Traditional Chinese Medicine Hospital), Guangzhou 510095, China
| | - Qing-Hai Wang
- Department of Cardiovascular, The Fifth Clinical Medical College of Guangzhou University of Chinese Medicine (Guangdong Second Traditional Chinese Medicine Hospital), Guangzhou 510095, China
| | - Li-Li Jin
- Department of Cardiovascular, The Fifth Clinical Medical College of Guangzhou University of Chinese Medicine (Guangdong Second Traditional Chinese Medicine Hospital), Guangzhou 510095, China
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12
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Cai LJ, Zhang Q, Zhang Y, Chen HX, Shi ZY, Du Q, Zhou HY. Clinical characteristics of very late-onset neuromyelitis optica spectrum disorder. Mult Scler Relat Disord 2020; 46:102515. [PMID: 33032051 DOI: 10.1016/j.msard.2020.102515] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [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: 04/18/2020] [Revised: 09/11/2020] [Accepted: 09/15/2020] [Indexed: 02/05/2023]
Abstract
BACKGROUND The typical age at onset of neuromyelitis optica spectrum disorder (NMOSD) is between 30 and 40 years. A growing awareness about the disease and advances in diagnostic techniques have led to an increase in the number of patients being diagnosed with very late-onset (VLO) NMOSD. This study compared the clinical characteristics, treatments, and prognoses between patients with VLO-NMOSD or late-onset (LO) NMOSD. METHODS Patients in our study were assigned to two groups based on age at onset of the disease: LO-NMOSD (50-70 years old at onset) and VLO-NMOSD (> 70 years old at onset). We compared clinical characteristics, magnetic resonance imaging of lesions, prognosis, and treatments between the two groups. RESULTS We collected data from 12 VLO-NMOSD patients with a median age at onset of 74.0 years (interquartile range, 72.6-75.9 years) and 104 LO-NMOSD patients with a median age at onset of 56.0 years (55.8-57.9 years). There were a high proportion of female patients in both the VLO-NMOSD group (9, 75.0%) and the LO-NMOSD group (91, 87.5%). Our study indicated that VLO-NMOSD patients had significantly higher expanded disability status scale (EDSS) scores (8.5 vs 4.0, p = 0.01), higher motor disability rates (41.7% vs 9.6%, p = 0.002), and higher mortality rates (25.0 vs 4.8%, p = 0.044) at last follow-up. However, patients with VLO-NMOSD had lower rates of immunosuppressant usage (50.0% vs 76.9%, p = 0.044). Age at onset was positively correlated with EDSS score at remission (r = 0.49, p < 0.001). CONCLUSION VLO-NMOSD was associated with higher EDSS score at remission, higher rates of mortality and motor disability, but lower rates of immunosuppressive treatment usage than LO-NMOSD. Future studies are needed to understand the effects of NMOSD on older patients, and to seek suitable treatment to improve their prognosis.
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Affiliation(s)
- L J Cai
- Department of Neurology, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Q Zhang
- Department of Neurology, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Y Zhang
- Department of Neurology, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - H X Chen
- Department of Neurology, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Z Y Shi
- Department of Neurology, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Q Du
- Department of Neurology, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - H Y Zhou
- Department of Neurology, West China Hospital, Sichuan University, Chengdu, Sichuan, China.
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13
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Xu HH, Li SM, Fang L, Xia CJ, Zhang P, Xu R, Shi ZY, Zou Z, Ge QW, Wang P, Tong PJ, Jin HT. Platelet-rich plasma promotes bone formation, restrains adipogenesis and accelerates vascularization to relieve steroids-induced osteonecrosis of the femoral head. Platelets 2020; 32:950-959. [PMID: 32835568 DOI: 10.1080/09537104.2020.1810221] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
Steroid-associated necrosis of the femoral head (SANFH) is one of the most common and refractory chronic diseases with increasing incidence. The typical pathological changes of SANFH include decreased osteogenic differentiation, enhanced intramedullary adipocytes deposition and impaired osseous circulation. In this study, we investigated the effects and potential mechanisms of Platelet-rich plasma (PRP) on SANFH. Sixty Sprague-Dawley rats were randomly divided into the control, PRP donor, model, and PRP groups. Compared to the model group, PRP treatment significantly increased the hemorheological indexes and serum levels of bone gla-protein (BGP) and vascular endothelial growth factor (VEGF), while decreased the levels of triglyceride (TG) and total cholesterol (TC). Meanwhile, Micro-CT and histopathological stain (Hematoxylin-eosin and Alcian blue-hematoxylin/orange G staining) were performed on the femoral head for morphological and histopathological evaluation, indicating that bone trabecular microstructure and bone mineral density (BMD) were significantly improved after PRP treatment. Immunohistochemical analysis revealed that PRP remarkably up-regulated the expression of osteogenic markers including β-catenin and alkaline phosphatase (ALP), angiogenic markers containing VEGF and platelet endothelial cell adhesion molecule-1 (CD31), while down-regulated adipogenic markers involving fatty acid-binding protein (FABP-4), and peroxisome proliferator-activated receptor gamma (PPAR-γ) in SANFH rat models. In summary, for the first time, PRP was demonstrated to prevent the development of SANFH through stimulating bone formation and vascularization as well as retarding adipogenesis.
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Affiliation(s)
- Hui-Hui Xu
- Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China.,Institute of Orthopaedics and Traumatology of Zhejiang Province, Hangzhou, Zhejiang, China
| | - Suo-Mi Li
- Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China
| | - Liang Fang
- Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China.,Institute of Orthopaedics and Traumatology of Zhejiang Province, Hangzhou, Zhejiang, China
| | - Chen-Jie Xia
- Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China.,Institute of Orthopaedics and Traumatology of Zhejiang Province, Hangzhou, Zhejiang, China
| | - Peng Zhang
- Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China.,Institute of Orthopaedics and Traumatology of Zhejiang Province, Hangzhou, Zhejiang, China
| | - Rui Xu
- Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China.,Institute of Orthopaedics and Traumatology of Zhejiang Province, Hangzhou, Zhejiang, China
| | - Zhen-Yu Shi
- Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China.,Institute of Orthopaedics and Traumatology of Zhejiang Province, Hangzhou, Zhejiang, China
| | - Zhen Zou
- Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China.,Institute of Orthopaedics and Traumatology of Zhejiang Province, Hangzhou, Zhejiang, China
| | - Qin-Wen Ge
- Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China.,Institute of Orthopaedics and Traumatology of Zhejiang Province, Hangzhou, Zhejiang, China
| | - Pinger Wang
- Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China.,Institute of Orthopaedics and Traumatology of Zhejiang Province, Hangzhou, Zhejiang, China
| | - Pei-Jian Tong
- Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China.,Institute of Orthopaedics and Traumatology of Zhejiang Province, Hangzhou, Zhejiang, China.,Department of Orthopaedic Surgery, The First Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China
| | - Hong-Ting Jin
- Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China.,Institute of Orthopaedics and Traumatology of Zhejiang Province, Hangzhou, Zhejiang, China
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14
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Affiliation(s)
- Gang Fang
- Department of Vascular Surgery, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Bin Chen
- Institute of Vascular Surgery, Fudan University, Shanghai 200032, China
| | - Da-Qiao Guo
- Department of Vascular Surgery, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Xin Xu
- Department of Vascular Surgery, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Jun-Hao Jiang
- Department of Vascular Surgery, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Zhen-Yu Shi
- Department of Vascular Surgery, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Zhi-Hui Dong
- Department of Vascular Surgery, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Wei-Guo Fu
- Department of Vascular Surgery, Zhongshan Hospital, Fudan University, Shanghai 200032, China
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15
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Miao XH, Lian ZY, Liu J, Chen HX, Shi ZY, Zhou HY, Yang R. [Investigation and analysis of health-related quality of life in myasthenia gravis patients with myasthenia gravis quality of life-15 Chinese version]. Beijing Da Xue Xue Bao Yi Xue Ban 2018; 50:514-520. [PMID: 29930422] [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: 06/08/2023]
Abstract
OBJECTIVE To investigate the level and influencing factors of health-related quality of life in myasthenia gravis (MG) patients with myasthenia gravis quality of life-15 (MGQOL-15) Chinese version and to provide corresponding measures in one tertiary hospital of Sichuan Province. METHODS We collected the general data (gender, age, body mass index BMI, marital status, educational level and employee status), clinical data [Osserman type, myasthenia gravis composite (MGC), other immunopathies, disease duration, frequency of outpatient visits per month, ratio of disease cost to income each month and frequency of symptoms during the past month] and the MGQOL-15 Chinese version from 168 myasthenia gravis patients in one tertiary hospital of Sichuan Province. RESULTS The mean score of MGQOL-15 was 17.67±12.78. The score of the item "My occupational skills and job status have been negatively affected." was the highest, followed by "I have trouble using my eyes." and "I am frustrated by my MG." Single factor analysis showed that MG patients' QOL were different with different disease severity MGC (F=19.353, P<0.001), ratio of disease cost to income each month (F=5.831, P<0.001) and the frequency of symptoms during the past month (F=9.128,P<0.001). Multiple regression analysis showed that disease severity MGC (β=0.743,P<0.001), ration of disease cost to income each month (β=3.347,P<0.001) and the frequency of symptoms during the past month (β=2.216,P<0.003) were the main predictors of HRQOL in the MG patients. CONCLUSION Our study showed that the MGQOL-15 is helpful for clinicians to evaluate MG patients' QOL regularly, investigate the influencing factors and implement corresponding interventions the so as to improve the patients' quality of life. Disease severity MGC, ratio of disease cost to income each month and the frequency of symptoms during the past month were the main predictors of MG patients' QOL. Clinicians should pay more attention to MG patients' disease severity MGC and the frequency of symptoms during the past month.
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Affiliation(s)
- X H Miao
- Department of Neurology,West China Hospital, Sichuan University, Chengdu 610041, China
| | - Z Y Lian
- Department of Neurology,West China Hospital, Sichuan University, Chengdu 610041, China
| | - J Liu
- Department of Neurology,West China Hospital, Sichuan University, Chengdu 610041, China
| | - H X Chen
- Department of Neurology,West China Hospital, Sichuan University, Chengdu 610041, China
| | - Z Y Shi
- Department of Neurology,West China Hospital, Sichuan University, Chengdu 610041, China
| | - H Y Zhou
- Department of Neurology,West China Hospital, Sichuan University, Chengdu 610041, China
| | - R Yang
- Department of Neurology,West China Hospital, Sichuan University, Chengdu 610041, China
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16
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Yan HW, Li L, Wang RC, Yang Y, Xie Y, Tang J, Shi ZY. Clinical efficacies of coracoclavicular ligament reconstruction using suture anchor versus hook plate in the treatment of distal clavicle fracture. Orthop Traumatol Surg Res 2017; 103:1287-1293. [PMID: 28801112 DOI: 10.1016/j.otsr.2017.07.006] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/04/2016] [Revised: 06/19/2017] [Accepted: 07/10/2017] [Indexed: 02/02/2023]
Abstract
INTRODUCTION Comparison of clinical efficacies between coracoclavicular ligament reconstruction using autologous gracilis tendon with suture anchor and clavicular hook plate for the treatment of acute Neer type II distal clavicle fracture. HYPOTHESIS Both coracoclavicular reconstruction with autologous gracilis tendon and clavicular hook plate could achieve satisfactory results for treating acute Neer type II distal clavicle fracture. METHODS Acute Neer type II distal clavicle fracture patients enrolled in this prospective randomized study were divided into the coracoclavicular ligament reconstruction group (using autologous gracilis tendon and suture anchor) and the hook plate group. Clinical outcomes were evaluated by shoulder X-ray, forward flexion, abduction and external rotation angle, Constant-Murley shoulder score and pain Visual Analogue Scale (VAS) at each follow-up for up to 24 months. RESULTS The current study enrolled a total of 42 acute Neer type II distal clavicle fracture patients attended our hospital from March 2010 to December 2013. All patients had achieved complete healing and followed up for an average of 26 months (range, 24-38 months). At 3-month and 6-month follow-ups, Constant-Murley score in the ligament reconstruction group was significantly higher (93.8±2.6 vs. 88.7±8.7; 95.9±2.7 vs. 93.0±7.0, P<0.05), while VAS score was poorer than those in the hook plate group (1.6±0.8 vs. 2.5±1.9; 1.1±1.0 vs. 1.6±1.7, P<0.05). DISCUSSION Reconstruction with autologous gracilis tendon improved VAS pain score in early postoperation follow-up; while Constant-Murley score and VAS score were significantly improved in the hook plate group after the implant was removed. These suggested that both coracoclavicular reconstruction with autologous gracilis tendon and clavicular hook plate could achieve satisfactory results. LEVEL OF EVIDENCE Level II, low-powered prospective randomized trial.
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Affiliation(s)
- H W Yan
- The Fourth Affiliated Hospital of Guangxi Medical University, Liu Zhou Worker's Hospital, Liuzhou, Guangxi 545005, China
| | - L Li
- The Fourth Affiliated Hospital of Guangxi Medical University, Liu Zhou Worker's Hospital, Liuzhou, Guangxi 545005, China
| | - R C Wang
- The Fourth Affiliated Hospital of Guangxi Medical University, Liu Zhou Worker's Hospital, Liuzhou, Guangxi 545005, China
| | - Y Yang
- The Fourth Affiliated Hospital of Guangxi Medical University, Liu Zhou Worker's Hospital, Liuzhou, Guangxi 545005, China
| | - Y Xie
- The Fourth Affiliated Hospital of Guangxi Medical University, Liu Zhou Worker's Hospital, Liuzhou, Guangxi 545005, China
| | - J Tang
- The Fourth Affiliated Hospital of Guangxi Medical University, Liu Zhou Worker's Hospital, Liuzhou, Guangxi 545005, China
| | - Z Y Shi
- The Fourth Affiliated Hospital of Guangxi Medical University, Liu Zhou Worker's Hospital, Liuzhou, Guangxi 545005, China.
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Shi ZY, Deng JX, Fu S, Wang L, Wang Q, Liu B, Li YQ, Deng JB. Protective effect of autophagy in neural ischemia and hypoxia: Negative regulation of the Wnt/β-catenin pathway. Int J Mol Med 2017; 40:1699-1708. [PMID: 29039446 PMCID: PMC5716434 DOI: 10.3892/ijmm.2017.3158] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [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: 02/02/2017] [Accepted: 09/26/2017] [Indexed: 01/08/2023] Open
Abstract
Autophagy is a highly conserved process of self-digestion to promote cell survival in response to nutrient starvation and other metabolic stresses. However, whether ischemic-hypoxic (IH) injury-induced autophagy acts as a neuroprotective mechanism or leads to neuroinjury is a subject of debate. It is known that autophagy is regulated by signaling pathways, including the mammalian target of rapamycin pathway. However, in neural IH injury, whether other signaling pathways are involved in the regulation of autophagy remains to be fully elucidated. In the present study, using the autophagy agonist (rampycin), autophagy antagonist [3-methyl adenine (3-MA)] and lysosome antagonist (MHY1485), autophagy was intervened with at oxygen-glucose deprivation (OGD) 6 h, in order to elucidate the regulatory mechanisms of autophagy. Using immunocytochemistry and western blot analysis, the expression levels of stress-related proteins, such as hypoxia-inducible factor-1α (HIF-1α) (a key regulator in hypoxia) and cyclooxygenase 2 (COX2; inflammatory indicator), were analyzed. In addition, the upstream proteins (Wnt1 and Wnt3a), downstream proteins (Dvl2, β-catenin) and target proteins (C-myc and cyclin D) in the Wnt/β-catenin signaling pathway were examined by immunocytochemistry and western blot analysis. The present study revealed that autophagy was activated with the upregulation of autophagic flux in IH injury; it was demonstrated that autophagy had a protective role in IH injury. The Wnt/β-catenin pathway was involved in IH injury regulation, and the upstream proteins in the Wnt/β-catenin signaling pathway were upregulated, whereas downstream proteins were downregulated by the activity of autophagy accordingly.
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Affiliation(s)
- Zhen-Yu Shi
- Institute of Neurobiology, Nursing College, Henan University, Kaifeng, Henan 475004, P.R. China
| | - Jie-Xin Deng
- Institute of Neurobiology, Nursing College, Henan University, Kaifeng, Henan 475004, P.R. China
| | - Su Fu
- Institute of Neurobiology, Nursing College, Henan University, Kaifeng, Henan 475004, P.R. China
| | - Lai Wang
- Institute of Neurobiology, College of Life Science, Henan University, Kaifeng, Henan 475004, P.R. China
| | - Qiang Wang
- Institute of Neurobiology, Nursing College, Henan University, Kaifeng, Henan 475004, P.R. China
| | - Bin Liu
- Institute of Neurobiology, Nursing College, Henan University, Kaifeng, Henan 475004, P.R. China
| | - Yong-Qiang Li
- Institute of Neurobiology, Nursing College, Henan University, Kaifeng, Henan 475004, P.R. China
| | - Jin-Bo Deng
- Institute of Neurobiology, Nursing College, Henan University, Kaifeng, Henan 475004, P.R. China
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Shi XL, Liang BC, Wu P, Wang B, Shi ZY, Kong LC, Yao JL, Huang JJ, Li CW. [Effect and mechanism of total flavone of epimedium on primary callus formation in ovariectomized rats with fractures]. Zhongguo Gu Shang 2017; 30:743-750. [PMID: 29455507 DOI: 10.3969/j.issn.1003-0034.2017.08.013] [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] [Key Words] [Subscribe] [Scholar Register] [Received: 01/18/2017] [Indexed: 11/18/2022]
Abstract
OBJECTIVE To explore the effects and related mechanisms of total flavone of epimedium treatment(TFE)on primary callus for mation in ovariectomized rats. METHODS Forty male SD rats weighted from 209 to 246 g and aged 6 to 8 weeks were selected. Six weeks after ovariectomy a femur fracture model with middiaphyseal segment fracture was established, estimated and randomly divided into TFE group (150 mg·kg⁻¹·d⁻¹) and control group(received saline). HE staining was used to evaluate the morphologic difference of primary callus during the bone callus healing between these two groups. The relative expression of Runt-related transcription factor 2(Runx2) mRNA in the callus was identified by real-time polymerase chain reaction. Immunohistochemical technique was used to observe the Casein kinase 2-interacting protein 1(CKIP-1) protein level in the callus of the two groups. Maximum fracture load was tested by three point bend test. RESULTS The BMD, primary callus volume, trabecular member(Tb.N) and trabecular thickness(Tb.Th) were higher in TFE group than that in control group(P<0.001). The Tb.N and Tb.Th of primary callus were higher in TFE group than control group (P=0.001). The volume and bone volume/tissue volume of primary callus were in TFE group than control group(P<0.01). The trabecular separation(Tb.Sp) of primary callus were in control group higher than TFE group(P<0.01). The HE staining of the 6 week slices showed that the degree of cartilage ossification in callus of the TFE group was significantly higher than that in control group under high magnification. Real-time PCR revealed that the comparative expression of Runx2 mRNA in control group was higher than that in TFE group(P<0.001); the positive number of CKIP-1 was less in TFE group than that in control group (P<0.001). TFE could increase the maximum load of the primary callus (P<0.001). CONCLUSIONS TFE can promote the cartiage ossification of callus in ovariectomized rats, enhancing the bone strength and bone quality in the process of fracture healing via the CKIP-1/Runx2 pathway.
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Affiliation(s)
| | | | | | | | | | | | | | | | - Chun-Wen Li
- College of Basic Medical Science, Zhejiang Chinese Medical University, Hangzhou 310053, Zhejiang, China;
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Wang YG, Shi ZY, Fu WG, Guo DQ, Xu X, Chen B, Jiang JH, Yang J, Zhu T, Dong ZH, Shi Y, Wang LX, Tang X, Yue JN. [Endovascular aortic repair of abdominal aortic aneurysm of short neck with Endurant stent graft]. Zhonghua Wai Ke Za Zhi 2017; 55:451-454. [PMID: 28592079 DOI: 10.3760/cma.j.issn.0529-5815.2017.06.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To evaluate the safety and effectiveness of the Endurant stent graft for abdominal aortic aneurysm cases with proximal neck length <10 mm. Methods: This study was a retrospective analysis. From January 2010 to May 2015, 22 consecutive abdominal aortic aneurysm patients with proximal neck length <10 mm were treated with endovascular aortic repair by Endurant stent graft in Department of Vascular Surgery, Zhongshan Hospital, Fudan University. There were 19 (86.3%) male cases, aging from 57 to 84 years. All patients underwent preoperative CT angiography and the anatomic parameters of abdominal aortic aneurysm were measured. All patients performed standard endovascular aortic repair first and if there was obvious proximal typeⅠ endoleak, the CUFF or the chimney technology were applied to observed the perioperative technical and the clinical success rate. During follow-up, the incidence of adverse events and the reintervention rate were observed. Results: These 22 cases had proximal neck length 5 to 9 mm with the average of (7.2±1.4) mm. Immediate endoleak occurred in 5 patients with 4 cases of proximal typeⅠ endoleak, 3 cases were implanted proximal CUFF, 1 case implanted CUFF and left renal artery chimney. One case died perioperatively, the clinical success rate was 95.4%, the technical success rate was 77.3%. During the follow-up of 6 to 54 months, there was 1 case with delayed proximal type-1 endoleak, during operation the patient had no endoleak, but disappeared 6 months later without further intervention. So the incidence of adverse event was 4.5% and reintervention rate was 0. Conclusion: The Endurant stent graft for abdominal aortic aneurysm cases with proximal neck length < 10 mm is safe and effective.
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Affiliation(s)
- Y G Wang
- Department of Vascular Surgery, Zhongshan Hospital, Fudan University, Shanghai 200023, China
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Shi ZY, Zhang XG, Li CW, Liu K, Liang BC, Shi XL. Effect of Traditional Chinese Medicine Product, QiangGuYin, on Bone Mineral Density and Bone Turnover in Chinese Postmenopausal Osteoporosis. Evid Based Complement Alternat Med 2017; 2017:6062707. [PMID: 28512501 PMCID: PMC5415859 DOI: 10.1155/2017/6062707] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/13/2016] [Revised: 02/10/2017] [Accepted: 04/03/2017] [Indexed: 12/03/2022]
Abstract
Introduction. The aim of this study was to investigate the efficacy of herbal formula QiangGuYin (QGY) in postmenopausal women. Materials and Methods. A total of 240 participants from six clinical centers were randomly to receive alendronate 70 mg/week, QGY granules 20 g/day, and placebo. Primary end points were BMD changes over 6 and 12 months; secondary end points were bone turnover markers changes at 3, 6, 9, and 12 months. Safety was monitored by clinical adverse events reported during the follow-up. Results. Of 240 women recruited, 218 completed the study. Significant BMD increases from baseline were observed over 6 and 12 months at each observed part both in QGY and alendronate compared with placebo (p < 0.01). Alendronate-treated subjects had significant decreases in β-CTX compared to QGY-treated subjects at each time point assessed (p < 0.01). Reduction in t-P1NP was only observed in the QGY group at 3 and 6 months (-23.81% and -3.07%, resp.). No significant difference was observed in the overall incidence of clinical adverse events among the alendronate group and the QGY group (5.0% versus 7.5%, p = 0.513). Conclusion. 1-Year treatment with QGY demonstrated a safe statistical increase in BMD and new balance may be rebuilt after 9 months. This trail is registered with ChiCTR-POC-16008026.
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Affiliation(s)
- Zhen-Yu Shi
- The Second Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou, Zhejiang 310053, China
| | - Xin-Gen Zhang
- Department of Orthopedics and Traumatology, Rongjun Hospital of Zhejiang, Jiaxing, Zhejiang 314001, China
| | - Chun-Wen Li
- Department of Diagnostics of Traditional Chinese Medicine, College of Basic Medical Science, Zhejiang Chinese Medical University, Hangzhou, Zhejiang 310053, China
| | - Kang Liu
- Department of Orthopedics and Traumatology, The Second Affiliated Hospital of Zhejiang Chinese Medical University, Zhejiang 310005, China
| | - Bo-Cheng Liang
- The Second Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou, Zhejiang 310053, China
| | - Xiao-Lin Shi
- Department of Orthopedics and Traumatology, The Second Affiliated Hospital of Zhejiang Chinese Medical University, Zhejiang 310005, China
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Liang BC, Shi ZY, Wang B, Wu P, Kong LC, Yao JL, Li CW, Shi XL. Intravenous Zoledronic Acid 5 mg on Bone Turnover Markers and Bone Mineral Density in East China Subjects with Newly Diagnosed Osteoporosis: A 24-month Clinical Study. Orthop Surg 2017; 9:103-109. [PMID: 28276638 DOI: 10.1111/os.12307] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/20/2016] [Accepted: 06/29/2016] [Indexed: 11/27/2022] Open
Abstract
OBJECTIVE This randomized, double-blind, placebo-controlled study assessed the necessity of early intervention, safety and efficacy of intravenous zoledronic acid 5 mg/year in East China women with newly diagnosed osteoporosis at high risk of fracture during a 24-month treatment period. METHODS Subjects (57 [52-62] years old) were randomized 3:2 to zoledronic acid versus placebo (randomized at baseline, zoledronic acid [175 cases], placebo-zoledronic acid [110 cases]). The bone mineral density of the lumbar spine and total hip was measured every 6 months with the use of dual-energy X-ray absorptiometry. Serum procollagen I N-terminal pro-peptide (PINP) and serum C-telopeptide of type I collagen (CTX) levels were measured every 6 months. The primary end point was the rate of change in the bone mineral density at the posteroanterior spine. RESULTS For subjects with measurements at 24 months, zoledronic acid significantly increased bone mineral density (BMD) at the lumbar spine (mean percent change ± SD, zoledronic acid 5.390% ± 0.854% versus placebo-zoledronic acid -1.038% ± 0.599%), the total hip (zoledronic acid 1.900% ± 0.262% versus placebo-zoledronic acid -1.631% ± 0.649%). Serum procollagen I N-terminal pro-peptide (PINP) and CTX decreased rapidly with zoledronic acid 5 mg treatment (P < 0.001 versus placebo at 6 month and 24 months) and changed from baseline in the zoledronic acid 5 mg and placebo-zoledronic acid 5 mg at 6 months by a mean of -66.348% and -75.375%, respectively (P < 0.001), and at 24 months by -49.950% and -52.325%, respectively (P < 0.001). No cases of serious adverse events were observed in two groups. Headache, pyrexia and myalgia occurred more commonly within the first 3 days after infusion with zoledronic acid 5 mg than with placebo (13.7% versus 2.1%, P = 0.0018; 28.0% versus 3.2%, P < 0.001; 21.7% versus 4.2%, P < 0.001, respectively). CONCLUSIONS These data show that early application of zoledronic acid 5 mg/year was well stimulated and tolerated for bone mass in newly diagnosed east china subjects with osteoporosis in a 24-month treatment.
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Affiliation(s)
- Bo-Cheng Liang
- Department of Osteology, Second Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou, China.,Department of Osteology, The Second Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, China
| | - Zhen-Yu Shi
- Department of Osteology, Second Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou, China
| | - Bo Wang
- Department of Osteology, Second Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou, China
| | - Peng Wu
- Department of Osteology, Second Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou, China
| | - Ling-Cheng Kong
- Department of Osteology, Second Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou, China
| | - Jian-Liang Yao
- Department of Osteology, Second Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou, China
| | - Chun-Wen Li
- Department of Diagnostics of Traditional Chinese Medicine, College of Basic Medical Science, Zhejiang Chinese Medical University, Hangzhou, China
| | - Xiao-Lin Shi
- Department of Osteology, The Second Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, China
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Liang BC, Shi XL, Li CW, Shi ZY, He WT, Yao JL, Kong LC, Li XY. Identification of human serum protein targets of Qianggu Decoction () in primary type I osteoporosis based on tandem mass tag labeling and liquid chromatography-tandem mass spectrometry technology. Chin J Integr Med 2016; 23:747-754. [PMID: 27389089 DOI: 10.1007/s11655-016-2600-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2015] [Indexed: 11/28/2022]
Abstract
OBJECTIVE To investigate the serum protein targets of Qianggu Decoction (, QGD) on treating osteoporosis by the proteomics analysis using tandem mass tag (TMT) and liquid chromatographytandem mass spectrometry (LC-MS/MS). METHODS Twenty serum protein samples were recruited (10 patients with primary type I osteoporosis before and after QGD treatment) and the high abundance ratios protein was removed, two serum samples were extracted and labeled with TMT reagent. Then, mass spectrometric detection, identification of differentially expressed proteins and bioinformatics analysis of differentially expressed proteins were carried out. RESULTS A total of 60 proteins were identified, within a 99% confidence interval, to be differentially regulated of which, 34 proteins were up-regulated and 26 proteins were down-regulated. Differentially expressed proteins analyzed by Gene Ontology (GO) annotation mainly get involved in 12 different biological processes, 7 types of cellular components, and 6 kinds of molecular functions. Angiotensinogen (AGT), stromelysin-1 (MMP3), heparanase (HPSE) and glyceraldehyde-3-phosphate dehydrogenase (GAPDH) were screened as candidate protein targets of QGD treatment, which were related to metabolic mechanism of bone remodeling and/or bone collagen of osteoporosis. By the utilization of the protein-protein interaction network analysis tool named STRING10.0, it showed that AGT, MMP3, HPSE and GAPDH were located in the key node of the protein-protein interactions network. Furthermore, AGT, MMP3, HPSE and GAPDH were found to be directly related to BMP, MAPK, Wnt, SMAD and tumor necrosis factor ligand superfamily member 11 (TNFSF11) families. CONCLUSIONS The proteomics analysis by using TMT combined with LC-MS/MS was a feasible method for screening the potential therapeutic targets associated with QGD treatment. It suggests that AGT, MMP3, HPSE and GAPDH may be candidate protein targets of QGD treatment which can be used as therapeutic effect monitor and early diagnosis of primary type I osteoporosis.
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Affiliation(s)
- Bo-Cheng Liang
- The Second Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou, 310053, China
| | - Xiao-Lin Shi
- Department of Ortopaedics and Traumatology, the Second Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, 310005, China.
| | - Chun-Wen Li
- Department of Diagnostics of Traditional Chinese Medicine, College of Basic Medical Science, Zhejiang Chinese Medical University, Hangzhou, 310053, China
| | - Zhen-Yu Shi
- The Second Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou, 310053, China
| | - Wei-Tao He
- The Second Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou, 310053, China
| | - Jian-Liang Yao
- The Second Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou, 310053, China
| | - Ling-Cheng Kong
- The Second Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou, 310053, China
| | - Xu-Yun Li
- The Second Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou, 310053, China
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He WT, Liang BC, Shi ZY, Li XY, Li CW, Shi XL. Weak cation exchange magnetic beads coupled with matrix-assisted laser desorption ionization-time of flight-mass spectrometry in screening serum protein markers in osteopenia. Springerplus 2016; 5:679. [PMID: 27347465 PMCID: PMC4899343 DOI: 10.1186/s40064-016-2276-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/16/2015] [Accepted: 05/04/2016] [Indexed: 02/04/2023]
Abstract
The present study aimed at investigating the weak cation magnetic separation technology and matrix-assisted laser desorption ionization-time of flight-mass spectrometry (MALDI-TOF-MS) in screening serum protein markers of osteopenia from ten postmenopausal women and ten postmenopausal women without osteopenia as control group, to find a new method for screening biomarkers and establishing a diagnostic model for primary type I osteoporosis. Serum samples were collected from postmenopausal women with osteopenia and postmenopausal women with normal bone mass. Proteins were extracted from serum samples by weak cation exchange magnetic beads technology, and mass spectra acquisition was done by MALDI-TOF-MS. The visualization and comparison of data sets, statistical peak evaluation, model recognition, and discovery of biomarker candidates were handled by the proteinchip data analysis system software(ZJU-PDAS). The diagnostic models were established using genetic arithmetic based support vector machine (SVM). The SVM result with the highest Youden Index was selected as the model. Combinatorial Peaks having the highest accuracy in distinguishing different samples were selected as potential biomarker. From the two group serum samples, a total of 133 differential features were selected. Ten features with significant intensity differences were screened. In the pair-wise comparisons, processing of MALDI-TOF spectra resulted in the identification of ten differential features between postmenopausal women with osteopenia and postmenopausal women with normal bone mass. The difference of features by Youden index showed that the highest features had a mass to charge ratio of 1699 and 3038 Da. A diagnosis model was established with these two peaks as the candidate marker, and the specificity of the model is 100 %, the sensitivity was 90 % by leave-one-out cross validation test. The two groups of specimens in SVM results on the scatter plot could be clearly distinguished. The peak with m/z 3038 in the SVM model was suggested as Secretin by TagIdent tool. To provide further validation, the secretin levels in serum were analyzed using enzyme-linked immunosorbent assays that is a competitive inhibition enzyme immunoassay technique for the in vitro quantitative measurement of secretin in human serum.
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Affiliation(s)
- Wei-Tao He
- The Second Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou, 310005 China
| | - Bo-Cheng Liang
- The Second Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou, 310005 China
| | - Zhen-Yu Shi
- The Second Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou, 310005 China
| | - Xu-Yun Li
- The Second Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou, 310005 China
| | - Chun-Wen Li
- Department of Diagnostics of Traditional Chinese Medicine, College of Basic Medical Science, Zhejiang Chinese Medical University, Hangzhou, 310005 China
| | - Xiao-Lin Shi
- Department of Osteology, The Second Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, China
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Guo BL, Fu WG, Guo DQ, Shi ZY. Complete Fracture of a Chimney Stent in the Left Common Carotid Artery after Thoracic Endovascular Aortic Repair for Thoracic Aneurysm. Chin Med J (Engl) 2015; 128:3264-5. [PMID: 26612311 PMCID: PMC4794873 DOI: 10.4103/0366-6999.170271] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
| | - Wei-Guo Fu
- Department of Vascular Surgery, Zhongshan Hospital, Fudan University, Institute of Vascular Surgery, Shanghai 200032, China
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Fu S, Shi ZY, Fan WJ, Fu X, Deng JB, Wang Q. [Microenvironments induce iPSCs and BMSCs into neuron-like cells--Reelin's regulative role in cell differentiation and polarization]. Sheng Li Xue Bao 2015; 67:357-369. [PMID: 26300247] [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: 06/04/2023]
Abstract
The present study was aimed to investigate how the induced pluripotent stem cells (iPSCs) and bone marrow mesenchymal stem cells (BMSCs) differentiate into neuron-like cells under the induction of hippocampal microenvironments and Reelin's regulation. iPSCs or BMSCs were co-cultured with WT (wild type) or genotypic hippocampal slice and cerebral homogenate supernatant, then the stem cells' differentiation under the induction of hippocampal environment was observed by using immunofluorescence technique. In the meantime, stem cells were co-cultured with hippocampal slice and cerebral conditioned medium of reeler (Reelin deletion) mouse respectively. The results showed that both adhesive iPSCs and BMSCs on WT hippocampal slice exhibited lamination of double "C" shape with high density on granular and pyramidal layers. The stem cells could differentiate into neuron-like cells with obvious polarization on WT hippocampal slice. In pyramidal cell layer, the differentiated neuron-like cells were oriented vertically with similar shapes of pyramidal cell in vivo, and the cells within molecule layer were arranged horizontally. In addition, adhesive iPSCs and BMSCs could differentiate into Nestin positive neural stem cells and NeuN positive neurons, respectively, under WT hippocampal microenvironment. On the other hand, under induction of hippocampal microenvironment of reeler mouse, iPSCs and BMSCs differentiation could also be seen, but their lamination was in disorder, and cell polarization was irregular. Moreover, differentiation and polarization of the iPSCs and BMSCs were delayed. These results suggest both iPSCs and BMSCs can differentiate into neuron-like cells under the induction of hippocampal microenvironments. Reelin is involved in the regulation of neuronal differentiation and cell polarization. Without Reelin, the cellular lamination and polarization appear irregular, and the stem cells' differentiation is delayed.
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Affiliation(s)
- Su Fu
- Institute of Neurobiology, Nursing College, Henan University, Kaifeng 475004, China
| | - Zhen-Yu Shi
- Institute of Neurobiology, Nursing College, Henan University, Kaifeng 475004, China
| | - Wen-Juan Fan
- Institute of Neurobiology, Nursing College, Henan University, Kaifeng 475004, China
| | - Xing Fu
- Institute of Neurobiology, Nursing College, Henan University, Kaifeng 475004, China
| | - Jin-Bo Deng
- Institute of Neurobiology, Nursing College, Henan University, Kaifeng 475004, China.
| | - Qiang Wang
- Institute of Neurobiology, Nursing College, Henan University, Kaifeng 475004, China.
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Guo BL, Fu WG, Shi ZY, Wang LX, Guo DQ. Management of acute lower extremity thrombosis associated with bilateral popliteal aneurysms using combined thrombolytic therapy and stent graft repair. Chin Med J (Engl) 2015; 128:564-6. [PMID: 25673466 PMCID: PMC4836267 DOI: 10.4103/0366-6999.151121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
| | | | | | | | - Da-Qiao Guo
- Department of Vascular Surgery, Zhongshan Hospital, Fudan University, Institute of Vascular Surgery, Shanghai 200032, China
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Guo YY, Shi ZY, Fu XZ, Chen JC, Wu Q, Chen GQ. A strategy for enhanced circular DNA construction efficiency based on DNA cyclization after microbial transformation. Microb Cell Fact 2015; 14:18. [PMID: 25896825 PMCID: PMC4455692 DOI: 10.1186/s12934-015-0204-x] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2014] [Accepted: 01/28/2015] [Indexed: 11/10/2022] Open
Abstract
Background With the rapid development of synthetic biology, the demand for assembling multiple DNA (genes) fragments into a large circular DNA structure in one step has dramatically increased. However, for constructions of most circular DNA, there are two contradictions in the ligation/assembly and transformation steps. The ligation/assembly consists of two different reactions: 1) the ligation/assembly between any two pieces of a linear form DNA; 2) the cyclization (or self-ligation) of a single linear form DNA. The first contradiction is that the bimolecular ligation/assembly requires a higher DNA concentration while the cyclization favors a lower one; the second contradiction is that a successful transformation of a ligation/assembly product requires a relatively high DNA concentration again. This study is the first attempt to use linear plasmid and Cyclization After Transformation (CAT) strategy to neutralize those contradictions systematically. Results The linear assembly combined with CAT method was demonstrated to increase the overall construction efficiency by 3–4 times for both the traditional ligation and for the new in vitro recombination-based assembly methods including recombinant DNA, Golden Gate, SLIC (Sequence and Ligation Independent Cloning) and Gibson Isothermal Assembly. Finally, the linear assembly combined with CAT method was successfully applied to assemble a pathway of 7 gene fragments responsible for synthesizing precorrin 3A which is an important intermediate in VB12 production. Conclusion The linear assembly combined with CAT strategy method can be regarded as a general strategy to enhance the efficiency of most existing circular DNA construction technologies and could be used in construction of a metabolic pathway consisting of multiple genes. Electronic supplementary material The online version of this article (doi:10.1186/s12934-015-0204-x) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Ying-Ying Guo
- MOE Key Lab of Bioinformatics, Department of Biological Science and Biotechnology, School of Life Science, Tsinghua-Peking Center for Life Sciences, Tsinghua University, Beijing, 100084, China.
| | - Zhen-Yu Shi
- Synthenome.com, Dingley Village, VIC3172, Australia.
| | - Xiao-Zhi Fu
- MOE Key Lab of Bioinformatics, Department of Biological Science and Biotechnology, School of Life Science, Tsinghua-Peking Center for Life Sciences, Tsinghua University, Beijing, 100084, China.
| | - Jin-Chun Chen
- MOE Key Lab of Bioinformatics, Department of Biological Science and Biotechnology, School of Life Science, Tsinghua-Peking Center for Life Sciences, Tsinghua University, Beijing, 100084, China.
| | - Qiong Wu
- MOE Key Lab of Bioinformatics, Department of Biological Science and Biotechnology, School of Life Science, Tsinghua-Peking Center for Life Sciences, Tsinghua University, Beijing, 100084, China.
| | - Guo-Qiang Chen
- MOE Key Lab of Bioinformatics, Department of Biological Science and Biotechnology, School of Life Science, Tsinghua-Peking Center for Life Sciences, Tsinghua University, Beijing, 100084, China. .,Center for Nano and Micro Mechanics, Tsinghua University, Beijing, 100084, China.
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Shi ZY, Dong T. Coupling effect on thermal comfort in a typical cubicle-based office with personalized floor diffuser control. Annu Int Conf IEEE Eng Med Biol Soc 2015; 2014:840-3. [PMID: 25570090 DOI: 10.1109/embc.2014.6943722] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
A typical office layout with cubicles, in which occupants have their own control of the micro-environment by adjusting supply air flow rate of the floor diffuser, is numerically investigated for the impact of the discrepancy in personal thermal sensation preference on thermal comfort. The comparison among different scenarios indicates that whether the local thermal comfort is significantly affected by the neighboring cubicle (coupling effect) depends on whether the doorway is closed or not whereas the "openness", of upper space has no influence on such coupling effect but observably on the thermal comfort. The effect of thermoregulation is also presented and compared with conventional constant heat flux assumption for the occupants.
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Abstract
A synthetic optimization of Pelton air turbine in dental handpieces concerning the power output, compressed air consumption and rotation speed in the mean time is implemented by employing a standard design procedure and variable limitation from practical dentistry. The Pareto optimal solution sets acquired by using the Normalized Normal Constraint method are mainly comprised of two piecewise continuous parts. On the Pareto frontier, the supply air stagnation pressure stalls at the lower boundary of the design space, the rotation speed is a constant value within the recommended range from literature, the blade tip clearance insensitive to while the nozzle radius increases with power output and mass flow rate of compressed air to which the residual geometric dimensions are showing an opposite trend within their respective "pieces" compared to the nozzle radius.
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Abstract
Antimony-dependent syntheses leading to the expansion of the Keggin heteropolyoxoniobate family involved nine new members.
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Affiliation(s)
- Zhe-Yu Zhang
- Key Laboratory of Polyoxometalate Science of Ministry of Education
- Department of Chemistry
- Northeast Normal University
- Changchun
- P. R. China
| | - Jun Peng
- Key Laboratory of Polyoxometalate Science of Ministry of Education
- Department of Chemistry
- Northeast Normal University
- Changchun
- P. R. China
| | - Zhen-Yu Shi
- Key Laboratory of Polyoxometalate Science of Ministry of Education
- Department of Chemistry
- Northeast Normal University
- Changchun
- P. R. China
| | - Wan-Li Zhou
- Key Laboratory of Polyoxometalate Science of Ministry of Education
- Department of Chemistry
- Northeast Normal University
- Changchun
- P. R. China
| | - Shifa Ullah Khan
- Key Laboratory of Polyoxometalate Science of Ministry of Education
- Department of Chemistry
- Northeast Normal University
- Changchun
- P. R. China
| | - Hong-Sheng Liu
- School of Chemistry and Chemical Engineering
- Daqing Normal University
- Daqing
- P. R. China
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Chen XW, Jiang S, Gu YF, Shi ZY. Molecular characterization and expression of cyp19a gene in Carassius auratus. J Fish Biol 2014; 85:516-522. [PMID: 24865234 DOI: 10.1111/jfb.12418] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/25/2014] [Accepted: 04/10/2014] [Indexed: 06/03/2023]
Abstract
A cyp19a gene that contains nine exons and eight introns was identified from Carassius auratus and was mainly expressed in the ovary. The cyp19a mRNA level after hatching was initially low, but began to increase from 25 days after hatching. A number of cis-acting elements, such as the oestrogen receptor, steroidogenic factor 1 and SOX-5 recognition sites, were found in the promoter of the cyp19 gene, which possesses a promoter function confirmed by a recombination green fluorescent protein checking system in vitro.
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Affiliation(s)
- X W Chen
- Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Shanghai Ocean University, Ministry of Education, Shanghai, 201306, China
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Yang F, Shi ZY, Bai SL, Ward RD, Zhang AB. Comparative studies on species identification of Noctuoidea moths in two nature reserve conservation zones (Beijing, China) using DNA barcodes and thin-film biosensor chips. Mol Ecol Resour 2013; 14:50-9. [PMID: 24103324 DOI: 10.1111/1755-0998.12165] [Citation(s) in RCA: 82] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2013] [Revised: 08/21/2013] [Accepted: 08/22/2013] [Indexed: 11/30/2022]
Abstract
Rapid and accurate identification of species is required for the biological control of pest Noctuoidea moths. DNA barcodes and thin-film biosensor chips are two molecular approaches that have gained wide attention. Here, we compare these two methods for the identification of a limited number of Noctuoidea moth species. Based on the commonly used mitochondrial gene cytochrome c oxidase I (the standard DNA barcode for animal species), 14 probes were designed and synthesized for 14 species shared by two national nature reserves in Beijing and Hebei, China. Probes ranged in length from 18 to 27 bp and were designed as mismatch probes to guarantee that there were at least three base differences between the probe and nontarget sequences. The results on the chip could be detected by the naked eye without needing special equipment. No cross-hybridizations were detected although we tested all probes on the 14 target and 24 nontarget Noctuoidea species. The neighbour-joining tree of the 38 species based on COI sequences gave 38 highly supported independent groups. Both DNA barcoding and thin-film biosensor chips, based on the COI gene, are able to accurately identify and discriminate the 14 targeted moth species in this study. Because of its speed, high accuracy and low cost, the thin-film biosensor chip is a very practical means of species identification. Now, a more comprehensive chip will be developed for the identification of additional Noctuoidea moths for pest control and ecological protection.
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Affiliation(s)
- F Yang
- College of Life Sciences, Capital Normal University, Beijing, 100048, China
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Guo BL, Fu WG, Guo DQ, Ning JJ, Shi ZY, Chen B, Jiang JH, Xu X, Wang LX, Tang X. [Endovascular repair for isolated iliac artery aneurysm]. Zhonghua Yi Xue Za Zhi 2013; 93:2131-2134. [PMID: 24284243] [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: 06/02/2023]
Abstract
OBJECTIVE To evaluate the short and middle-term efficacies of endovascular repair for isolated iliac artery aneurysms (IIAAs). METHODS Retrospective analyses were performed for the clinical and follow-up data of 27 patients undergoing endovascular repair at Department of Vascular Surgery, Affiliated Zhongshan Hospital, Fudan University from January 2008 to December 2012. For asymptomatic aneurysms, repair criterion was a diameter over 3 cm while under 3 cm for symptomatic aneurysms. RESULTS There were 19 asymptomatic and 8 symptomatic cases. And 25 selective and 2 emergent operations were performed. The interventions included endovascular stent grafts (n = 17), coil embolization (n = 1), both stent grafts and coils (n = 7) and hybrid operations (n = 2). Technical success was achieved in all cases. No delayed healing or infection of inguinal access sites occurred. In-stent thrombosis could be observed in 2 cases. Buttock claudication was observed in one case. Sexual dysfunction occurred in three cases. Endoleaks were confirmed by intraoperative digital subtraction angiography in three cases. There was no occurrence of colorectal ischemia or postoperative aneurysmal rupture. Patients were followed up for a mean period of 33 ± 18 months. One patient died of recurrent renal cell carcinoma. CONCLUSION Endovascular repair of isolated iliac artery aneurysms provides good short and middle-term patency. It may become a first-choice for treating isolated iliac artery aneurysms in the future.
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Affiliation(s)
- Bao-Lei Guo
- Department of Vascular Surgery, Affiliated Zhongshan Hospital, Fudan University, Shanghai 200032, China.
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Sun JP, Shi ZY, Liu SM, Kang YH, Hu GQ, Huangfu CS, Deng JB, Liu B. Trimethoxy-benzaldehyde levofloxacin hydrazone inducing the growth arrest and apoptosis of human hepatocarcinoma cells. Cancer Cell Int 2013; 13:67. [PMID: 23819802 PMCID: PMC3716872 DOI: 10.1186/1475-2867-13-67] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [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: 02/21/2013] [Accepted: 06/25/2013] [Indexed: 11/29/2022] Open
Abstract
Background In order to search for new structural modification strategies on fluoroquinolones, we have designed and synthesized a series of fluoroquinolone derivatives by linking various hydrazine compounds to the C-3 carboxyl group of levofloxacin and assessed their anticancer activities. Several novel levofloxacin derivatives displayed potent cytotoxicity against the tested cancer cell lines in vitro. In the present study, we investigated the effect of 1-Cyclopropyl-6-fluoro-4-oxo-7- piperazin-1, 4-dihydro- quinoline- 3-carboxylic acid benzo [1,3] dioxol-5- ylmethylene- hydrazide (QNT11) on the apoptosis of human hepatocarcinoma cells in vitro. Methods The inhibition effects of QNT11 on cell proliferation were examined by MTT assay. Cell apoptosis was determined by TUNEL and DNA agarose gel electrophoresis method. The topoisomerase ΙΙ activity was measured by agarose gel electrophoresis using Plasmid pBR322 DNA as the substrate. Cell cycle progression was analyzed using flow cytometry in conjunction with ethanol fixation and propidium iodide staining. Mitochondrial membrane potential (△ψm) was measured by high content screening image system. The caspase-9, caspase-8, caspase-3, Bcl-2, Bax, CDK1, Cyclin B1and cytochrome c protein expressions were detected by Western blot analysis. Results QNT11 showed selective cytotoxicity against Hep3B, SMMC-7721, MCF-7 and HCT-8 cell lines with IC50 values of 2.21 μM, 2.38 μM, 3.17 μM and 2.79 μM, respectively. In contrast, QNT11 had weak cytotoxicity against mouse bone marrow mesenchymal stem cells (BMSCs) with IC50 value of 7.46 μM. Treatment of Hep3B cells with different concentrations of QNT11 increased the percentage of the apoptosis cells significantly, and agarose gel electrophoresis revealed the ladder DNA bands typical of apoptotic cells, with a decrease in the mitochondrial membrane potential. Compared to the control group, QNT11 could influence the DNA topoisomerase IIactivity and inhibit the religation of DNA strands, thus keeping the DNA in fragments. There was a significant increase of cytochrome c in the cytosol after 24 h of treatment with QNT11 and a decrease in the mitochondrial compartment. Observed changes in cell cycle distribution by QNT11 treated might be caused by insufficient preparation for G2/M transition. In addition, QNT11 increased the protein expression of Bax, caspase-9, caspase-8, caspase-3, as well as the cleaved activated forms of caspase-9, caspase-8 and caspase-3 significantly, whereas the expression of Bcl-2 decreased. Conclusions Our results showed that QNT11 as a fluoroquinolone derivative exerted potent and selectively anticancer activity through the mechanism of eukaryotic topoisomerase II poisoning. The growth inhibition was in large part mediated via apoptosis-associated mitochondrial dysfunction and regulation of Bcl-2 signaling pathways.
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Affiliation(s)
- Jin-Ping Sun
- College of Nursing, Institute of Neurobiology, Henan University, Kaifeng, China.
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35
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Alimaje K, Wang X, Zhang ZY, Peng J, Shi ZY, Yu X, Ren ZX. Two Bisupporting Keggin-Type POM-Based Hybrids Decorated by [Zn(phen)2]2+ Fragments. J CLUST SCI 2013. [DOI: 10.1007/s10876-013-0594-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Abstract
A couple of DNA ligation-independent cloning (LIC) methods have been reported to meet various requirements in metabolic engineering and synthetic biology. The principle of LIC is the assembly of multiple overlapping DNA fragments by single-stranded (ss) DNA overlaps annealing. Here we present a method to generate single-stranded DNA overlaps based on Nicking Endonucleases (NEases) for LIC, the method was termed NE-LIC. Factors related to cloning efficiency were optimized in this study. This NE-LIC allows generating 3′-end or 5′-end ss DNA overlaps of various lengths for fragments assembly. We demonstrated that the 10 bp/15 bp overlaps had the highest DNA fragments assembling efficiency, while 5 bp/10 bp overlaps showed the highest efficiency when T4 DNA ligase was added. Its advantage over Sequence and Ligation Independent Cloning (SLIC) and Uracil-Specific Excision Reagent (USER) was obvious. The mechanism can be applied to many other LIC strategies. Finally, the NEases based LIC (NE-LIC) was successfully applied to assemble a pathway of six gene fragments responsible for synthesizing microbial poly-3-hydroxybutyrate (PHB).
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Affiliation(s)
- Rui-Yan Wang
- MOE Key Lab of Bioinformatics and Systems Biology, Department of Biological Science and Biotechnology, School of Life Sciences, Tsinghua-Peking Center for Life Sciences, Tsinghua University, Beijing, China
| | - Zhen-Yu Shi
- Synthenome.com, Dingley Village, Victoria, Australia
| | - Ying-Ying Guo
- MOE Key Lab of Bioinformatics and Systems Biology, Department of Biological Science and Biotechnology, School of Life Sciences, Tsinghua-Peking Center for Life Sciences, Tsinghua University, Beijing, China
| | - Jin-Chun Chen
- MOE Key Lab of Bioinformatics and Systems Biology, Department of Biological Science and Biotechnology, School of Life Sciences, Tsinghua-Peking Center for Life Sciences, Tsinghua University, Beijing, China
| | - Guo-Qiang Chen
- MOE Key Lab of Bioinformatics and Systems Biology, Department of Biological Science and Biotechnology, School of Life Sciences, Tsinghua-Peking Center for Life Sciences, Tsinghua University, Beijing, China
- Center for Nano and Micro Mechanics, Tsinghua University, Beijing, China
- * E-mail:
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Gao X, Yuan XX, Shi ZY, Guo YY, Shen XW, Chen JC, Wu Q, Chen GQ. Production of copolyesters of 3-hydroxybutyrate and medium-chain-length 3-hydroxyalkanoates by E. coli containing an optimized PHA synthase gene. Microb Cell Fact 2012; 11:130. [PMID: 22978778 PMCID: PMC3503839 DOI: 10.1186/1475-2859-11-130] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2012] [Accepted: 09/12/2012] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Microbial polyhydroxyalkanoates (PHA) are biopolyesters consisting of diverse monomers. PHA synthase PhaC2Ps cloned from Pseudomonas stutzeri 1317 is able to polymerize short-chain-length (scl) 3-hydroxybutyrate (3HB) monomers and medium-chain-length (mcl) 3-hydroxyalkanoates (3HA) with carbon chain lengths ranging from C6 to C12. However, the scl and mcl PHA production in Escherichia coli expressing PhaC2Ps is limited with very low PHA yield. RESULTS To improve the production of PHA with a wide range of monomer compositions in E. coli, a series of optimization strategies were applied on the PHA synthase PhaC2Ps. Codon optimization of the gene and mRNA stabilization with a hairpin structure were conducted and the function of the optimized PHA synthase was tested in E. coli. The transcript was more stable after the hairpin structure was introduced, and western blot analysis showed that both codon optimization and hairpin introduction increased the protein expression level. Compared with the wild type PhaC2Ps, the optimized PhaC2Ps increased poly-3-hydroxybutyrate (PHB) production by approximately 16-fold to 30% of the cell dry weight. When grown on dodecanoate, the recombinant E. coli harboring the optimized gene phaC2PsO with a hairpin structure in the 5' untranslated region was able to synthesize 4-fold more PHA consisting of 3HB and medium-chain-length 3HA compared to the recombinant harboring the wild type phaC2Ps. CONCLUSIONS The levels of both PHB and scl-mcl PHA in E. coli were significantly increased by series of optimization strategies applied on PHA synthase PhaC2Ps. These results indicate that strategies including codon optimization and mRNA stabilization are useful for heterologous PHA synthase expression and therefore enhance PHA production.
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Affiliation(s)
- Xue Gao
- MOE Key Lab of Bioinformatics, Department of Biological Science and Biotechnology, School of Life Science, Tsinghua-Peking Center for Life Sciences, Tsinghua University, Beijing 100084, China
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Guo DQ, Li WM, Jiang JH, Shi ZY, Wang YQ, Fu WG. Management of multiple type II endoleaks detected by duplex ultrasound after endovascular abdominal aneurysm repair. Chin Med J (Engl) 2012; 125:2781-2783. [PMID: 22931994] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/01/2023] Open
Abstract
We reported a case of multiple type II endoleaks detected by duplex ultrasound after endovascular abdominal aneurysm repair. The patient was undergoing warfarin therapy. Duplex ultrasound was applied as the sole surveillance method during follow-up and provided the concerned information for reintervention. The endoleaks were successfully repaired by coil embolization of the collaterals from the internal iliac artery feeding the fourth lumbar artery.
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Affiliation(s)
- Da-Qiao Guo
- Department of Vascular Surgery, Zhongshan Hospital, Fudan University, Shanghai 200032, China
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Abstract
Despite recent advances in genomic sequencing and DNA chemical synthesis, construction of large gene clusters containing DNA fragments is still a difficult and expensive task. To tackle this problem, we developed a gene cluster extraction method based on in vitro single-strand overlapping annealing (SSOA). It starts with digesting the target gene cluster in an existing genome, followed by recovering digested chromosome fragments. Subsequently, the single-strand DNA overhangs formed from the digestion process would be specifically annealed and covalently joined together with a circular and a linear vector, respectively. The SSOA method was successfully applied to clone a 18 kb DNA fragment encoding NADH:ubiquinone oxidoreductase. Genomic DNA fragments of different sizes including 11.86, 18.33, 28.67, 34.56, and 55.99 kb were used to test the cloning efficiency. Combined with genetic information from KEGG and the KEIO strain collection, this method will be useful to clone any specific region of an E. coli genome at sizes less than ~28 kb. The method provides a cost-effective way for genome assembly, alternative to chemically synthesized gene clusters.
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Affiliation(s)
- Rui-Yan Wang
- MOE Key
Lab of Bioinformatics and Systems Biology, Department
of Biological Science and Biotechnology, School of Life Sciences,
Tsinghua-Peking Center for Life Sciences and ‡Center for Nano and Micro Mechanics, Tsinghua University, Beijing 100084,
China
| | - Zhen-Yu Shi
- MOE Key
Lab of Bioinformatics and Systems Biology, Department
of Biological Science and Biotechnology, School of Life Sciences,
Tsinghua-Peking Center for Life Sciences and ‡Center for Nano and Micro Mechanics, Tsinghua University, Beijing 100084,
China
| | - Jin-Chun Chen
- MOE Key
Lab of Bioinformatics and Systems Biology, Department
of Biological Science and Biotechnology, School of Life Sciences,
Tsinghua-Peking Center for Life Sciences and ‡Center for Nano and Micro Mechanics, Tsinghua University, Beijing 100084,
China
| | - Guo-Qiang Chen
- MOE Key
Lab of Bioinformatics and Systems Biology, Department
of Biological Science and Biotechnology, School of Life Sciences,
Tsinghua-Peking Center for Life Sciences and ‡Center for Nano and Micro Mechanics, Tsinghua University, Beijing 100084,
China
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Zhou XY, Yuan XX, Shi ZY, Meng DC, Jiang WJ, Wu LP, Chen JC, Chen GQ. Hyperproduction of poly(4-hydroxybutyrate) from glucose by recombinant Escherichia coli. Microb Cell Fact 2012; 11:54. [PMID: 22550959 PMCID: PMC3527305 DOI: 10.1186/1475-2859-11-54] [Citation(s) in RCA: 67] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2012] [Accepted: 04/26/2012] [Indexed: 11/10/2022] Open
Abstract
Abstract
Background
Poly(4-hydroxybutyrate) [poly(4HB)] is a strong thermoplastic biomaterial with remarkable mechanical properties, biocompatibility and biodegradability. However, it is generally synthesized when 4-hydroxybutyrate (4HB) structurally related substrates such as γ-butyrolactone, 4-hydroxybutyrate or 1,4-butanediol (1,4-BD) are provided as precursor which are much more expensive than glucose. At present, high production cost is a big obstacle for large scale production of poly(4HB).
Results
Recombinant Escherichia coli strain was constructed to achieve hyperproduction of poly(4-hydroxybutyrate) [poly(4HB)] using glucose as a sole carbon source. An engineering pathway was established in E. coli containing genes encoding succinate degradation of Clostridium kluyveri and PHB synthase of Ralstonia eutropha. Native succinate semialdehyde dehydrogenase genes sad and gabD in E. coli were both inactivated to enhance the carbon flux to poly(4HB) biosynthesis. Four PHA binding proteins (PhaP or phasins) including PhaP1, PhaP2, PhaP3 and PhaP4 from R. eutropha were heterologously expressed in the recombinant E. coli, respectively, leading to different levels of improvement in poly(4HB) production. Among them PhaP1 exhibited the highest capability for enhanced polymer synthesis. The recombinant E. coli produced 5.5 g L-1 cell dry weight containing 35.4% poly(4HB) using glucose as a sole carbon source in a 48 h shake flask growth. In a 6-L fermentor study, 11.5 g L-1 cell dry weight containing 68.2% poly(4HB) was obtained after 52 h of cultivation. This was the highest poly(4HB) yield using glucose as a sole carbon source reported so far. Poly(4HB) was structurally confirmed by gas chromatographic (GC) as well as 1H and 13C NMR studies.
Conclusions
Significant level of poly(4HB) biosynthesis from glucose can be achieved in sad and gabD genes deficient strain of E. coli JM109 harboring an engineering pathway encoding succinate degradation genes and PHB synthase gene, together with expression of four PHA binding proteins PhaP or phasins, respectively. Over 68% poly(4HB) was produced in a fed-batch fermentation process, demonstrating the feasibility for enhanced poly(4HB) production using the recombinant strain for future cost effective commercial development.
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Liu ZJ, Fu WG, Guo ZY, Shen LG, Shi ZY, Li JH. Updated Systematic Review and Meta-Analysis of Randomized Clinical Trials Comparing Carotid Artery Stenting and Carotid Endarterectomy in the Treatment of Carotid Stenosis. Ann Vasc Surg 2012; 26:576-90. [DOI: 10.1016/j.avsg.2011.09.009] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2011] [Revised: 08/29/2011] [Accepted: 09/06/2011] [Indexed: 10/28/2022]
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Abstract
Two complementary (c)DNA fragments, including the complete open reading frame of fabp2 from the common carp Cyprinus carpio, were cloned by reverse-transcription polymerase chain reaction (RT-PCR). Both were putative intestinal-type fabp genes, named fabp2a and fabp2b. fabp2b was mainly expressed in the intestine and the brain. This gene, however, was nearly not expressed in the liver, heart, pancreas and muscle. fabp2a was only expressed at a very low level in the intestine. Western blot also showed that Fabp2 is relatively highly expressed in the intestine and the brain. Immunohistochemical analysis revealed that Fabp2 is widely distributed in the mucosa of the intestine. These findings provide novel insights into the fabp2 gene molecular evolution, as well as its potential features in the intestine and the brain.
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Affiliation(s)
- X W Chen
- College of Fisheries and Life Science, Shanghai Ocean University, Shanghai 201306, People's Republic of China
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Wang X, Peng J, Alimaje K, Shi ZY. Keggin POM-based 3D framework tuned by silver polymeric motifs: structural influences of tetrazolate functional groups. CrystEngComm 2012. [DOI: 10.1039/c2ce26193f] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.3] [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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Wang X, Peng J, Liu MG, Wang DD, Meng CL, Li Y, Shi ZY. Polyoxoanion-enveloped Ag/ptz inorganic–organic hybrid system: From a single to a double template. CrystEngComm 2012. [DOI: 10.1039/c2ce06577k] [Citation(s) in RCA: 58] [Impact Index Per Article: 4.8] [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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Shi ZY, Chen XW, Gu YF. Cloning and expression pattern of alkaline phosphatase during the development of Paralichthys olivaceus. Fish Physiol Biochem 2011; 37:411-424. [PMID: 20922565 DOI: 10.1007/s10695-010-9441-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2010] [Accepted: 09/20/2010] [Indexed: 05/29/2023]
Abstract
Alkaline phosphatases are ubiquitous enzymes involved in many important biological processes. Mammalian tissue-nonspecific alkaline phosphatase has long been thought to feature in embryonic development and bone formation. In this study, an alkaline phosphatase (ALP) gene from Paralichthys olivaceus was identified by rapid amplification of cDNA ends and genome-walking PCR. The ALP gene extends 10,141 bp and contains 11 exons and 10 introns. The open reading frame of the ALP transcript consists of 1,431 bp, which encodes 476 amino acids products named as POALP. An analysis of its secondary and tertiary structure revealed that the POALP was conserved in different species, but one disulfide linkage made it possible to adapt to low-temperature environment. The ALP activity was found to be first detectable in the embryo before hatching. The POALP was distributed ubiquitously in the body of P. olivaceus and was particularly high in the digestive tract. These findings suggest the potential role of POALP in nutrient absorption and transportation. During the pre-metamorphosis (F stage), ALP gene expression is 2.5-folds of that in the pro-metamorphosis (E stage); but in the post-metamorphosis (I stage), it was 1.8-folds of that of pro-metamorphosis. Exogenetic thyroxine (T4) and thiourea (TU) influenced the ALP gene expression significantly during the metamorphosis. Bioinformatics analysis showed that Japanese flounder ALP promoter region contained promoter sequence and putative recognition site for several transcriptional factors, including SREBP-1, SYR, and CdxA. In vitro promoter assays employing EGFP reporter system demonstrated that the promoter of ALP was active.
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Affiliation(s)
- Z Y Shi
- College of Fisheries and Life Science, Shanghai Ocean University, 201306 Shanghai, China.
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Li ZJ, Shi ZY, Jian J, Guo YY, Wu Q, Chen GQ. Production of poly(3-hydroxybutyrate-co-4-hydroxybutyrate) from unrelated carbon sources by metabolically engineered Escherichia coli. Metab Eng 2010; 12:352-9. [DOI: 10.1016/j.ymben.2010.03.003] [Citation(s) in RCA: 137] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2010] [Revised: 03/08/2010] [Accepted: 03/12/2010] [Indexed: 11/25/2022]
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Jian J, Zhang SQ, Shi ZY, Wang W, Chen GQ, Wu Q. Production of polyhydroxyalkanoates by Escherichia coli mutants with defected mixed acid fermentation pathways. Appl Microbiol Biotechnol 2010; 87:2247-56. [PMID: 20535465 DOI: 10.1007/s00253-010-2706-0] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2010] [Revised: 05/27/2010] [Accepted: 05/28/2010] [Indexed: 10/19/2022]
Abstract
A series of Escherichia coli BW25113 mutants with reduced mixed acid fermentation were constructed. Genes ackA-pta, poxB, ldhA, adhE, and pflB encoding acetate kinase, phosphate acetyltransferase, pyruvate oxidase, D: -lactate dehydrogenase, acetaldehyde dehydrogenase, and pyruvate formate-lyase, respectively, were deleted successively. When grown under microaerobic condition, the mutants reduced approximately 90% acetate excretion after the deletion of genes ackA-pta and poxB. Production of lactate, ethanol, and formate was also significantly reduced after the deletion of genes ldhA, adhE, and pflB, respectively. The accumulation of biomass and poly(3-hydroxybutyrate) (PHB) were significantly enhanced after deleting the mixed acid fermentation. E. coli mutant BWapld with deletions of ackA-pta, poxB, ldhA, and adhE produced twice the cell dry weight (CDW) and 3.5 times of PHB compared with its wild-type under microaerobic conditions. E. coli mutant BWapl with deletions of ackA-pta, poxB, and ldhA also achieved nearly twice CDW and three times of PHB content in comparison to the wild-type during 48 h static cultivation. Production of poly(3-hydroxybutyrate-co-3-hydroxyvalerate) [P(3HB-co-3HV)] was observed in the mutants under static cultivation. E. coli mutant BWapld could produce approximately 50 wt.% P(3HB-co-3HV) consisting of 5 mol% of 3-hydroxyvalerate (3HV) under aerobic conditions, when the seed culture was inoculated at an appropriate time. When ackA-pta, poxB, ldhA, adhE, and pflB were deleted, E. coli mutant BWapldf accumulated over 70 wt.% P(3HB-co-3HV) consisting of 8 mol% 3HV under aerobic conditions.
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Affiliation(s)
- Jia Jian
- Department of Biology, Tsinghua University, Beijing, China
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Wei XX, Shi ZY, Li ZJ, Cai L, Wu Q, Chen GQ. A mini-Mu transposon-based method for multiple DNA fragment integration into bacterial genomes. Appl Microbiol Biotechnol 2010; 87:1533-41. [DOI: 10.1007/s00253-010-2674-4] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2010] [Revised: 05/10/2010] [Accepted: 05/10/2010] [Indexed: 10/19/2022]
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Wei XX, Shi ZY, Yuan MQ, Chen GQ. Effect of anaerobic promoters on the microaerobic production of polyhydroxybutyrate (PHB) in recombinant Escherichia coli. Appl Microbiol Biotechnol 2009; 82:703-12. [DOI: 10.1007/s00253-008-1816-4] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2008] [Revised: 12/05/2008] [Accepted: 12/07/2008] [Indexed: 11/30/2022]
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Wang LX, Fu WG, Guo DQ, Chen B, Jiang JH, Yang J, Shi ZY, Wang YQ. Staged and hybrid approach in the treatment of complex aortic dissection. Chin Med J (Engl) 2008; 121:1492-1496. [PMID: 18959134] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/27/2023] Open
Affiliation(s)
- Li-Xin Wang
- Department of Vascular Surgery, Zhongshan Hospital, Fudan University, Shanghai, China
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