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Wang YB, Wang SW, Jin QY, Chen LP, Zhang FQ, Shi JJ, Yin Y, Fan ZX, Liu XY, Wang LP, Li P. Expression of water-soluble nucleocapsid protein of SARS-CoV-2 and analysis of its immunogenicity. Pol J Vet Sci 2023; 26:571-579. [PMID: 38088301 DOI: 10.24425/pjvs.2023.148277] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2023]
Abstract
Coronavirus disease 2019 (COVID-19) caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) continues to be a major public health concern. Nucleocapsid (N) protein is the most abundant structural protein on SARS-CoV-2 virions and induces the production of antibodies at the early stage of infection. Large-scale preparation of N protein is essential for the development of immunoassays to detect antibodies to SARS-CoV-2 and the control of virus transmission. In this study, expression of water-soluble N protein was achieved through inducing protein expression at 25°C with 0.5 mM IPTG for 12 h. Western blot and ELISA showed that recombinant N protein could be recognized by sera collected from subjects immunized with Sinovac inactivated SARS-CoV-2 vaccine. Four monoclonal antibodies namely 2B1B1, 4D3A3, 5G1F8, and 7C6F5 were produced using hybridoma technology. Titers of all four monoclonal antibodies in ELISA reached more than 1.28×10 6.0. Moreover, all monoclonal antibodies could react specifically with N protein expressed by transfection of pcDNA3.1-N into BHK-21 cells in IPMA and IFA. These results indicated that water-soluble N protein retained high immunogenicity and possessed the same epitopes as that of native N protein on virions. In addition, the preparation of water-soluble N protein and its monoclonal antibodies laid the basis for the development of immunoassays for COVID-19 detection.
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Affiliation(s)
- Y B Wang
- School of Public Health, Xinxiang Medical University, Xinxiang 453003, P.R. China
| | - S W Wang
- School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang 453003, P.R. China
| | - Q Y Jin
- Henan Provincial Key Laboratory of Animal Immunology, Henan Academy of Agricultural Sciences, Zhengzhou 450002, P.R. China
| | - L P Chen
- Gushi County Center for Animal Disease Control and Prevention, Xinyang 465200, P.R. China
| | - F Q Zhang
- School of Public Health, Xinxiang Medical University, Xinxiang 453003, P.R. China
| | - J J Shi
- School of Public Health, Xinxiang Medical University, Xinxiang 453003, P.R. China
| | - Y Yin
- Mingde College of Xinxiang Medical University, Xinxiang 453003, P.R. China
| | - Z X Fan
- School of Public Health, Xinxiang Medical University, Xinxiang 453003, P.R. China
| | - X Y Liu
- School of Biological Engineering, Xinxiang University, Xinxiang 453003, P.R. Chin
| | - L P Wang
- School of Biological Engineering, Xinxiang University, Xinxiang 453003, P.R. Chin
| | - P Li
- School of Biological Engineering, Xinxiang University, Xinxiang 453003, P.R. Chin
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Zhou Y, Hu K, Zhang FQ. Adjuvant Concurrent Chemoradiotherapy vs. Radiotherapy Alone in Cervical Cancer Patients with Intermediate-Risk Factors after Radical Surgery. Int J Radiat Oncol Biol Phys 2023; 117:e560. [PMID: 37785718 DOI: 10.1016/j.ijrobp.2023.06.1877] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) For early-stage cervical cancer patients with intermediate-risk factors, there is no consensus about whether postoperative concurrent chemoradiotherapy (CCRT) is superior to radiotherapy (RT) alone. MATERIALS/METHODS We retrospectively reviewed medical records of stage I-IIA cervical cancer patients underwent radical surgery and postoperative RT or CCRT from June 2012 to December 2017. Patients with any of the high-risk factors including positive pelvic lymph node, positive resection margin, and parametrial invasion were excluded. Patients with any of the intermediate-risk factors including large tumor size (≥4cm), deep stromal invasion (≥1/2), and lymphovascular space involvement were included. 1:1 propensity score matching was performed to balance baseline variables between patients receiving RT and CCRT. RESULTS A total of 350 patients were enrolled (84 underwent RT alone and 266 underwent CCRT). The median follow-up period was 50.4 months. For patients underwent RT alone and CCRT, the 5-year overall survival (OS) rates were 93.4% and 93.8% (p = 0.741), the 5-year disease-free survival (DFS) rates were 90.6% and 91.4% (p = 0.733), respectively. 83 pairs of patients were enrolled based on propensity score matching. Similarly, there was no significant difference between OS or DFS rates of those matched patients. For patients with single intermediate-risk factor who received RT alone (n = 58) and CCRT (n = 132), the 5-year OS rates were 94.2% and 95.7% (p = 0.636), the 5-year DFS rates were 92.8% and 94.1% (p = 0.637). For patients with multiple intermediate-risk factors who received RT alone (n = 26) and CCRT (n = 134), the 5-year OS rates were 91.8% and 91.7% (p = 0.761), the 5-year DFS rates were 85.4% and 88.4% (p = 0.717). The cox regression analysis also indicated that adjuvant CCRT or RT was not an independent prognostic factor for OS or DFS. Otherwise, patients underwent CCRT seemed to develop a higher proportion of grade 3 or higher acute hematologic toxicities than RT group (45.5% and 14.3%, p<0.001). CONCLUSION There was no significant difference in OS and DFS between cervical cancer patients with intermediate-risk factors receiving postoperative CCRT and RT alone. Patients underwent CCRT seemed to develop a higher proportion of severe hematologic toxicities than RT alone. To a certain extent, CCRT is not superior to RT alone for intermediate-risk patients.
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Affiliation(s)
- Y Zhou
- Peking Union Medical College Hospital, Beijing, China
| | - K Hu
- Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - F Q Zhang
- Department of radiation oncology, Peking Union Medical College Hospital. Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
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Wang W, Zhang FQ, Hu K. Weekly Image Guidance in Patients with Cervical Cancer Treated with Intensity Modulated Radiation Therapy: Results of a Large Cohort Study. Int J Radiat Oncol Biol Phys 2023; 117:e553. [PMID: 37785701 DOI: 10.1016/j.ijrobp.2023.06.1860] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) Given the motion of the cervix, uterus, and organs at risk, image guidance is recommended for patients undergoing intensity modulated radiation therapy (IMRT) for cervical cancer. However, daily image guidance can be resource intensive, particularly in developing countries. In this study, we evaluated the feasibility of a weekly image-guidance pattern and analyzed the long-term outcomes in a large cohort of patients. MATERIALS/METHODS The study enrolled patients with stage IB-IVA cervical cancer who received concurrent chemotherapy between 2005 and 2015. IMRT was delivered at a dose of 50.4 Gy in 28 fractions, with weekly cone-beam CT scans for image guidance. Following the image guidance, physicians would advise patients on the suitability of rectum and bladder preparation to help them prepare on non-imaging days. When significant tumor regression was observed, a second CT simulation and re-planning were performed. Intracavitary brachytherapy was delivered at a dose of 30 Gy in 5 fractions. The concurrent chemotherapy regimen consisted of weekly cisplatin. RESULTS A total of 1,433 patients were included in the study. The median follow-up periods for all patients and surviving patients were 63 months (ranging from 2 to 125 months) and 70 months (ranging from 3 to 125 months), respectively. The 5-year overall survival (OS), disease-free survival (DFS), and local control (LC) rates were 79.6%, 73.2%, and 86.5%, respectively. The estimated 8-year OS, DFS, and LC rates were 75.6%, 69.2%, and 85.2%, respectively. For patients with stage IB1, IB2, IIA, IIB, IIIA, IIIB, and IVA diseases (according to the 2014 FIGO staging system), the 5-year OS and DFS rates were 90.2% and 86.7%, 95.1% and 86.5%, 87.9% and 79.8%, 82.2% and 75.5%, 64.3% and 58.2%, 61.8% and 57.4%, and 43.8% and 19.4%, respectively. For patients with squamous cell carcinoma and adenocarcinoma, the 5-year DFS rates were 75.1% and 57.3%, respectively. For patients with positive regional lymph nodes, the 5-year OS and DFS rates were 64.1% and 57.8%, respectively. A total of 66 patients (4.6%) experienced grade 3-5 chronic toxicities, including 38 patients (2.7%) with gastrointestinal toxicities and 36 patients (2.5%) with genitourinary toxicities. CONCLUSION IMRT with weekly image guidance resulted in high survival rates and acceptable toxicities. This indicates that weekly image guidance is acceptable in countries with limited medical resources.
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Affiliation(s)
- W Wang
- Department of radiation oncology, Peking Union Medical College Hospital. Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - F Q Zhang
- Department of radiation oncology, Peking Union Medical College Hospital. Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - K Hu
- Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
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Wang G, Junfang Y, Zhang FQ. Clinical Implementation of Optical Surface Imaging Systems in Vulvar Cancer to Reduce Setup Error. Int J Radiat Oncol Biol Phys 2023; 117:e552. [PMID: 37785697 DOI: 10.1016/j.ijrobp.2023.06.1859] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) Optical surface monitoring system (OSMS) could achieve continuous monitoring of patient position through a nonradiographic and noninvasive technology, which has been widely applied to many sites of radiation therapy including breast, intracranial, head and neck, abdomen, and the extremities. However, no study has investigated the application of OSMS in radiation therapy of vulvar cancer. In this study, we hypothesized using OSMS would reduce setup error in the vulvar cancer compared to standard laser-based setup (SLS). MATERIALS/METHODS A single-center prospective trial included 10 patients with vulvar cancer treated with intensity modulated radiation therapy (IMRT) for a total of 250 fractions. Every patient was immobilized with Styrofoam in a frog-leg position and used marks on the patient's skin to align to the room lasers for pre-setup. The treatment couch values of lateral (Lat), longitudinal (Lng), vertical (Vrt) in three translation directions and Rtn (the rotation along the z axis), Pitch (the rotation along the x axis), Roll (the rotation along the y axis) in three rotations directions were recorded. Then completed the setup of patient with information from a surface imaging system and obtained deviation values. Setup is followed by pretreatment cone-beam computed tomography (CBCT) to further verify patient and target position by registering to the planning CT with respect to bony anatomy. With CBCT as a gold standard for patient setup, the absolute values of setup error and error distribution of SLS method and OSMS method from the same patient in above six directions were compared. RESULTS The mean of absolute values of setup errors in the SLS method were significantly higher than those of OSMS method in Lat (0.34cm vs 0.20cm), Lng (0.42cm vs 0.29cm), Vrt (0.43cm vs 0.28cm) and Rtn (0.90° vs 0.67°) directions (P<0.05). The mean errors in SLS and OSMS methods in Pitch and Roll directions were 0.93° and 1.02° (P = 0.16), 0.42° and 0.45° (P = 0.48), respectively, with no significant difference. In the OSMS method, the distribution rates of the setup errors within 0.5cm in three translation directions and within 1.5° in three rotations directions were significantly higher in Lat (90.8% vs 80.4%), Lng (82.0% vs 68.8%), Vrt (83.2% vs 65.6%), and Rtn (91.2% vs 80.4%) directions than those of SLS method (P<0.05). In the Pitch (79.2% vs 80.4%) and Roll (97.2% vs 98.0%) directions, the distribution rates of the OSMS method were slightly lower than those of the SLS method, with no significant difference (P = 0.738 and P = 0.559). CONCLUSION The implementation of OSMS in IMRT for vulvar cancer could reduce setup error and increase precision of setup, especially for the directions of Lat, Lng, Vrt and Rtn.
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Affiliation(s)
- G Wang
- Department of radiation oncology, Peking Union Medical College Hospital. Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Y Junfang
- Department of radiation oncology, Peking Union Medical College Hospital. Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - F Q Zhang
- Department of radiation oncology, Peking Union Medical College Hospital. Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
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Wang G, Junfang Y, Wang W, Zhang FQ. Reducing CTV to PTV Margins with Daily Adaptive Radiotherapy in the Postoperative Treatment of Endometrial and Cervical Cancer. Int J Radiat Oncol Biol Phys 2023; 117:e552. [PMID: 37785698 DOI: 10.1016/j.ijrobp.2023.06.1858] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) In the postoperative treatment of endometrial and cervical cancer, a PTV expansion of 1.5cm or greater would be generally recommended to ensure adequate coverage of CTV with no or minimal image guidance. Online adaptive radiotherapy (oART) has demonstrated to be feasible to reduce inter-fractional radiotherapy errors as it re-optimizes treatment plan every fraction. In this study, we hypothesized using daily cone-beam computed tomography (CBCT)-guided oART would reduce CTV to PTV margins in the postoperative treatment of endometrial and cervical cancer. MATERIALS/METHODS Seven patients from a single-center with postoperative endometrial and cervical cancer treated with daily CBCT-guided oART were retrospectively reviewed. A total dose of 45Gy is prescribed in CTV-vaginal cuff (CTV-V) and CTV- regional lymph nodes (CTV-N) with daily fractions of 1.8Gy for five fractions per week. A total of 175 radiotherapy fractions of daily pre-treatment CBCTs and post-treatment CBCTs scans were uploaded to oART emulator for CTV-V and CTV-N contouring by a single observer. CTVpre to PTVpre margins of 5, 7, 10, 12, 15mm was used in all directions. Each post-treatment CBCT was rigidly registered to the pre-treatment CBCT with respect to bony anatomy. The CTVpost was projected onto the PTVpre and assess required planning margins to encompass the CTVpost. RESULTS The average total treatment time (post-treatment CBCTs - pre-treatment CBCTs) was 23 min 14s (range: 18min 53s ∼ 28min 53s). For all fractions, the adapted plan was selected, and the volume of the PTV-V and PTV-N receiving 100% of the prescribed dose or more (V100%) was more than required 95%. A uniform three-dimensional CTV-Npre to PTV-Npre margin of 5mm could encompass CTV-Npost in all fractions (100%; 175/175f). A uniform three-dimensional CTV-Vpre to PTV-Vpre margin of 10mm could encompass CTV-Vpost in all fractions (100%; 175/175f) and 5mm could encompass 98% fractions (172/175f). In the fractions of 5mm margins that failed to encompass CTV-Vpost, the volume of CTV missed three times in anterior-posterior directions and once in lateral direction. Compared with scheduled plan, adapted plan with 5mm margins significantly reduced the mean dose to bladder (Dmean: 103.97 cGy vs 107.20 cGy, P<0.05) and rectum (Dmean: 117.82 cGy vs 123.67 cGy, P<0.05), and achieved better PTV-N (V100%: 97.8% vs 90.0%, P<0.05) and PTV-V (V100%:96.8% vs 85.4%, P<0.05) dose coverage in 175 fractions. CONCLUSION In this study, 5mm CTV to PTV margins was adequate to encompass 100% fractions of CTV-N and 98% fractions of the CTV-V. Adapted plan with 5mm margins significantly reduced the dose to critical organ at risks while improving target coverage.
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Affiliation(s)
- G Wang
- Department of radiation oncology, Peking Union Medical College Hospital. Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Y Junfang
- Department of radiation oncology, Peking Union Medical College Hospital. Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - W Wang
- Department of radiation oncology, Peking Union Medical College Hospital. Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - F Q Zhang
- Department of radiation oncology, Peking Union Medical College Hospital. Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
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Wang W, Zhang FQ, Hu K. Poor Survival Outcomes in Patients with Stage IIIC2 Cervical Cancer Receiving Concurrent Chemoradiotherapy. Int J Radiat Oncol Biol Phys 2023; 117:e553. [PMID: 37785699 DOI: 10.1016/j.ijrobp.2023.06.1861] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) Patients with cervical cancer who have para-aortic lymph nodes metastasis are staged as IIIC2 according to the 2018 FIGO staging system. In this study, we evaluated the survival and toxicity outcomes of patients with stage IIIC2 cervical cancer who received concurrent chemoradiotherapy. MATERIALS/METHODS We included patients with stage IIIC2 cervical cancer who received definitive concurrent chemoradiotherapy at our institute between 2007 and 2015. The treatment consisted of intensity modulated radiation therapy (IMRT) delivering a dose of 50.4 Gy in 28 fractions to the pelvic and para-aortic lymph node regions, with escalated doses of 60-70 Gy for positive lymph nodes. A dose of 30 Gy in 5 fractions was delivered with intracavitary brachytherapy. The first-line chemotherapy regimen was weekly cisplatin. RESULTS A total of 88 patients were included in the study. The median follow-up periods for all patients and surviving patients were 20 months (range: 5-114 months) and 62 months (range: 5-114 months), respectively. The median survival was 20.9 months. The 1-year, 3-year, 5-year, and 8-year overall survival rates were 73.4%, 41.3%, 34.5%, and 25.3%, respectively, while the progression-free survival rates were 50.8%, 29.7%, 28.4%, and 21.2%. The local control rates were 58.6%, 52.2%, 52.2%, and 42.8%, respectively. Multivariate analysis showed that the number of positive para-aortic lymph nodes and histology type were independent factors affecting progression-free survival. The 5-year progression-free survival rates were 40.2% and 0% for patients with one and two or more positive para-aortic lymph nodes, respectively, and 30.1% and 21.4% for patients with squamous cell carcinoma and adenocarcinoma, respectively. Grade 3 or higher toxicities were observed in 8 patients (9.1%), including 4 patients (4.5%) with gastrointestinal toxicities and 4 patients (4.5%) with genitourinary toxicities. CONCLUSION The results of this study suggest that the survival outcomes of patients with stage IIIC2 cervical cancer receiving concurrent chemoradiotherapy were poor. Further treatment options, such as consolidation chemotherapy or immunotherapy, should be considered for these patients.
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Affiliation(s)
- W Wang
- Department of radiation oncology, Peking Union Medical College Hospital. Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - F Q Zhang
- Department of radiation oncology, Peking Union Medical College Hospital. Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - K Hu
- Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
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Tao YJ, Zhen HN, Guan H, Shen J, Zhang FQ, Liu ZK. [Parameningeal or non-parameningeal head and neck rhabdomyosarcoma: a study based on propensity score matching and survival analysis]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2022; 57:1409-1417. [PMID: 36707944 DOI: 10.3760/cma.j.cn115330-20220511-00261-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
Objective: To compare the prognoses between parameningeal and non-parameningeal head and neck rhabdomyosarcoma based on propensity score matching and to explore the prognostic factors of overall survival in patients with head and neck rhabdomyosarcoma. Methods: The medical records of 64 patients with pathologically diagnosed as head and neck rhabdomyosarcoma from January 2016 to May 2020 in Peking Union Medical College Hospital were retrospectively retrieved, including 31 males and 33 females, with an average age of (8.0±8.9) years. Kaplan-Meier method was used to draw and compare survival curves in subgroup analysis according to different histopathological characteristics. Patients were divided into non-parameningeal (27 cases) and parameningeal (37 cases) group based on the location of primary lesion. Patients were further selected using 1∶1 propensity score matching method. The basic clinical data and overall survival were compared before and after matching. Prognostic factors were anlysed using Cox's proportional hazards regression model. Results: In 64 patients with head and neck rhabdomyosarcoma, lower risk stratification, and lower TNM stage indicated higher overall survival (all P<0.05). Before matching, patients in parameningeal group presented with higher T stage and IRS (Intergroup Rhabdomyosarcoma Study) staging (all P<0.05). There were no significant differences in basic clinical data and 1-, 2-, and 3-year overall survival rates between two groups after matching(P>0.05). Tumor size smaller than 5 cm, embryonal histology, negative FOXO1 fusion gene, lower risk stratification, and lower TNM stage were associated with higher overall survival (all P<0.05). Among these, tumor size and histology were independent prognostic factors (HR=2.36, 95%CI:1.07-5.20, P=0.033; HR=5.54, 95%CI: 1.18-25.95, P=0.030). Conclusions: There is no significant difference in overall survival between patients with parameningeal and non-parameningeal rhabdomyosarcomas. Tumor size smaller than 5 cm and embryonal histology are two independent prognostic factors.
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Affiliation(s)
- Y J Tao
- Department of Radiation Oncology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - H N Zhen
- Department of Radiation Oncology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - H Guan
- Department of Radiation Oncology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - J Shen
- Department of Radiation Oncology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - F Q Zhang
- Department of Radiation Oncology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - Z K Liu
- Department of Radiation Oncology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing 100730, China
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Xia MZ, Li Y, Zhang FQ, Yu JY, Khan G, Chi XF, Xu H, Chen SL. Reassessment of the Phylogeny and Systematics of Chinese Parnassia (Celastraceae): A Thorough Investigation Using Whole Plastomes and Nuclear Ribosomal DNA. Front Plant Sci 2022; 13:855944. [PMID: 35371115 PMCID: PMC8971841 DOI: 10.3389/fpls.2022.855944] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/16/2022] [Accepted: 02/16/2022] [Indexed: 06/14/2023]
Abstract
Parnassia L., a perennial herbaceous genus in the family Celastraceae, consists of about 60 species and is mainly distributed in the Pan-Himalayan and surrounding mountainous regions. The taxonomic position and phylogenetic relationships of the genus are still controversial. Herein, we reassessed the taxonomic status of Parnassia and its intra- and inter-generic phylogeny within Celastraceae. To that end, we sequenced and assembled the whole plastid genomes and nuclear ribosomal DNA (nrDNA) of 48 species (74 individuals), including 25 species of Parnassia and 23 species from other genera of Celastraceae. We integrated high throughput sequence data with advanced statistical toolkits and performed the analyses. Our results supported the Angiosperm Phylogeny Group IV (APG IV) taxonomy which kept the genus to the family Celastraceae. Although there were topological conflicts between plastid and nrDNA phylogenetic trees, Parnassia was fully supported as a monophyletic group in all cases. We presented a first attempt to estimate the divergence of Parnassia, and molecular clock analysis indicated that the diversification occurred during the Eocene. The molecular phylogenetic results confirmed numerous taxonomic revisions, revealing that the morphological characters used in Parnassia taxonomy and systematics might have evolved multiple times. In addition, we speculated that hybridization/introgression might exist during genus evolution, which needs to be further studied. Similarly, more in-depth studies will clarify the diversification of characters and species evolution models of this genus.
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Affiliation(s)
- Ming-Ze Xia
- Key Laboratory of Adaptation and Evolution of Plateau Biota, Northwest Institute of Plateau Biology, Institute of Sanjiangyuan National Park, Chinese Academy of Sciences, Xining, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Yan Li
- School of Pharmacy, Weifang Medical University, Weifang, China
| | - Fa-Qi Zhang
- Key Laboratory of Adaptation and Evolution of Plateau Biota, Northwest Institute of Plateau Biology, Institute of Sanjiangyuan National Park, Chinese Academy of Sciences, Xining, China
- University of Chinese Academy of Sciences, Beijing, China
- Qinghai Provincial Key Laboratory of Crop Molecular Breeding, Xining, China
| | - Jing-Ya Yu
- Key Laboratory of Adaptation and Evolution of Plateau Biota, Northwest Institute of Plateau Biology, Institute of Sanjiangyuan National Park, Chinese Academy of Sciences, Xining, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Gulzar Khan
- Institute for Biology and Environmental Sciences, Carl von Ossietzky Universität Oldenburg, Oldenburg, Germany
| | - Xiao-Feng Chi
- Key Laboratory of Adaptation and Evolution of Plateau Biota, Northwest Institute of Plateau Biology, Institute of Sanjiangyuan National Park, Chinese Academy of Sciences, Xining, China
| | - Hao Xu
- Key Laboratory of Adaptation and Evolution of Plateau Biota, Northwest Institute of Plateau Biology, Institute of Sanjiangyuan National Park, Chinese Academy of Sciences, Xining, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Shi-Long Chen
- Key Laboratory of Adaptation and Evolution of Plateau Biota, Northwest Institute of Plateau Biology, Institute of Sanjiangyuan National Park, Chinese Academy of Sciences, Xining, China
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Feng XH, Hou JX, Zhang JR, Liu RS, Zhang FQ, Lin J, Ouyang XY, Liu Y, Wang ZM, Luan QX. [A survey on human resources of dentists who deal with periodontal disease in Beijing]. Zhonghua Kou Qiang Yi Xue Za Zhi 2021; 56:1109-1114. [PMID: 34763406 DOI: 10.3760/cma.j.cn112144-20201210-00610] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the status quo of human resources of dentists who deal with periodontal disease in Beijing area through an online survey, which may hopefully provide a preliminary basis for the decision-making of administrative departments and the formulation of periodontal professional development plan. Methods: The dentists who deal with periodontal disease at least half a day per week in Beijing area were investigated. A questionnaire was designed by the chairman of the Periodontology Committee of Beijing Stomatological Association. The questionnaire was sent to and finished by the dentists via "WenJuanXing" online survey software. The contents of the survey included general condition, the property of practice unit, title and position of the dentist, membership of professional society, time and content of periodontal treatment, adoption of new technology and new method of periodontal therapy during the past one year, status of periodontal treatment in the local population and reasons, understanding and influencing factors of periodontal professional development. Results: A total of 1 255 dentists completed the survey, who came from all 16 districts in Beijing, mainly Haidian, Chaoyang, Dongcheng and Xicheng Districts [The total percentage of these four main districts was 70.3% (882/1 255)]. The mean age of the dentists was (36.1±8.3) years. Among the dentists, 71.1% (892/1 255) were females, 88.1% (1 106/1 255) got a Bachelor's degree or above. It was estimated that 35.4% (444/1 255) of the dentists had received standardized periodontal training ever. The percentage of dentists carrying out new technology in the past one year was as high as 68.1% (855/1 255). There were only 163 periodontal specialists (13.0%) out of the dentists in the survey. Only 15.9% (200/1 255) of the dentists routinely performed periodontal surgery. The majority of the dentists [82.8% (1 039/1 255)] were from the state-owned hospitals. Fifty-four point seven percemt (686/1 255) of the dentists thought that lack of knowledge was the main reason why the general public failed to receive periodontal treatment. As for the biggest bottleneck affecting periodontal professional development, fifty-one point zero percent (640/1 255) of the dentists attributed it to the public neglect. Conclusions: The periodontal practitioners in Beijing are young, highly educated, unevenly distributed in 16 districts and mostly females. State-owned oral health institutions are an important force in periodontal diagnosis and treatment services in Beijing. The number of periodontal specialists need to be improved. Promotion of standardized periodontal surgery and the popularization of healthcare knowledge on periodontal disease should also be the focus in the future.
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Affiliation(s)
- X H Feng
- Department of Periodontology, Peking University School and Hospital of Stomatology & National Center of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
| | - J X Hou
- Department of Periodontology, Peking University School and Hospital of Stomatology & National Center of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
| | - J R Zhang
- Department of Periodontology, Peking University School and Hospital of Stomatology & National Center of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
| | - R S Liu
- Department of Stomatology, The First Medical Center of Chinese PLA General Hospital, Beijing 100853, China
| | - F Q Zhang
- Department of Periodontology, Capital Medical University School of Stomatology, Beijing 100050, China
| | - J Lin
- Department of Stomatology, Beijing Tongren Hospital, Capital Medical University, Beijing 100730, China
| | - X Y Ouyang
- Department of Periodontology, Peking University School and Hospital of Stomatology & National Center of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
| | - Y Liu
- Department of Periodontology, Capital Medical University School of Stomatology, Beijing 100050, China
| | - Z M Wang
- Department of Stomatology, Beijing Chao-Yang Hospital, Capital Medical University, Beijing 100020, China
| | - Q X Luan
- Department of Periodontology, Peking University School and Hospital of Stomatology & National Center of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
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10
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Wang XD, Liu X, Wu T, Yang Y, Qi SN, He X, Zhang LL, Wu G, Qu BL, Qian LT, Hou XR, Zhang FQ, Qiao XY, Wang H, Li GF, Zhu Y, Cao JZ, Wu JX, Zhu SY, Shi M, Su H, Zhang XM, Zhang HL, Huang HQ, Zhang YJ, Song YQ, Zhu J, Wang Y, Li YX. [Outcome of radiotherapy for low-risk early-stage patients with extranodal NK/T-cell lymphoma, nasal-type]. Zhonghua Zhong Liu Za Zhi 2021; 43:1105-1113. [PMID: 34695903 DOI: 10.3760/cma.j.cn112152-20200924-00851] [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 prognosis and determine the failure patterns after radiotherapy for low-risk early-stage patients with extranodal NK/T-cell lymphoma, nasal-type (ENKTCL). Methods: A total of 557 patients from 2000-2015 with low-risk early-stage ENKTCL who received radiotherapy (RT) with or without chemotherapy (CT) from China Lymphoma Collaborative Group were retrospectively reviewed. Among them, 427 patients received combined modality therapy, whereas 130 patients received RT alone. Survivals were calculated by Kaplan-Meier method and compared with Log-rank test. Overall survival (OS) was compared with age and sex-matched general Chinese population using expected survival and standardized mortality ratio (SMR). Cox stepwise regression model was used for multivariate analysis. Results: The 5-year OS and progression-free survival (PFS) were 87.2% and 77.2%. The SMR was 3.59 (P<0.001) at 1 year after treatment, whereas it was 1.50 at 4 years after treatment, without significant difference between ENKTCL group and country-matched general population (P=0.146). Compared with RT alone, CMT did not result in significantly superior 5-year OS (87.0% vs 87.4%, P=0.961) or PFS (76.1% vs 80.7%, P=0.129). Local failure (11.5%, 64/557) and distant failure (10.8%, 60/557) were the main failure modes, while regional failure was rare (2.9%, 16/557). The 5-year locoregional control rate (LRC) was 87.2% for the whole group, with 89.5% for ≥50 Gy versus 73.7% for <50 Gy (P<0.001). Radiotherapy dose was an independent factor affecting LRC(P<0.05). Conclusions: Radiotherapy achieves a favorable prognosis in patients with low-risk early-stage ENKTCL. The incidence of either locoregional or distant failure is low. Radiation dose still is an important prognostic factor for LRC.
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Affiliation(s)
- X D Wang
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - X Liu
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - T Wu
- Department of Radiation Oncology, Affiliated Hospital of Guizhou Medical University/Guizhou Cancer Hospital, Guiyang 550000, China
| | - Y Yang
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - S N Qi
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - X He
- Department of Radiation Oncology, Jiangsu Cancer Hospital/Nanjing Medical University Affiliated Cancer Hospital, Nanjing 210009, China
| | - L L Zhang
- Department of Oncology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430023, China
| | - G Wu
- Department of Oncology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430023, China
| | - B L Qu
- Department of Radiation Oncology, The General Hospital of Chinese People's Liberation Army, Beijing 100853, China
| | - L T Qian
- Department of Radiation Oncology, the First Affiliated Hospital of University of Science and Technology of China/Anhui Provincial Hospital, Hefei 230001, China
| | - X R Hou
- Department of Radiation Oncology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
| | - F Q Zhang
- Department of Radiation Oncology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
| | - X Y Qiao
- Department of Radiation Oncology, Hebei Cancer Hospital/the Fourth Hospital of Hebei Medical University, Shijiazhuang 050011, China
| | - H Wang
- Department of Radiation Oncology, Second Affiliated Hospital of Nanchang University, Nanchang 330006, China
| | - G F Li
- Department of Radiation Oncology, Beijing Hospital, Beijing 100730, China
| | - Y Zhu
- Department of Radiation Oncology, Zhejiang Cancer Hospital/Cancer Hospital of The University of Chinese Academy of Sciences, Hangzhou 310022, China
| | - J Z Cao
- Department of Radiation Oncology, Shanxi Cancer Hospital and the Affiliated Cancer Hospital of Shanxi Medical University, Taiyuan 030001, China
| | - J X Wu
- Department of Radiation Oncology, Fujian Provincial Cancer Hospital/Affiliated Cancer Hospital of Fujian Medical University, Fuzhou 350014, China
| | - S Y Zhu
- Department of Radiation Oncology, Hunan Cancer Hospital and the Affiliated Cancer Hospital of Xiangya School of Medicine, Changsha 410013, China
| | - M Shi
- Department of Radiation Oncology, Xijing Hospital, the Fourth Military Medical University, Xi'an 710032, China
| | - H Su
- Department of Oncology, the Fifth Medical Center of PLA General Hospital, Affiliated Hospital of PLA Academy of Military Medical Sciences, Beijing 100071, China
| | - X M Zhang
- Department of Radiation Oncology, Key Laboratory of Cancer Prevention and Therapy/Tianjin Medical University Cancer Institute & Hospital/National Clinical Research Center for Cancer, Tianjin 300060, China
| | - H L Zhang
- Department of Lymphoma, Key Laboratory of Cancer Prevention and Therapy/Tianjin Medical University Cancer Institute & Hospital/National Clinical Research Center for Cancer, Tianjin 300060, China
| | - H Q Huang
- Departments of Radiation Oncology, State Key Laboratory of Oncology in South China/Sun Yat-sen University Cancer Center/Collaborative Innovation Center for Cancer Medicine, Guangzhou 510060, China
| | - Y J Zhang
- Departments of Medical Oncology, State Key Laboratory of Oncology in South China/Sun Yat-sen University Cancer Center/Collaborative Innovation Center for Cancer Medicine, Guangzhou 510060, China
| | - Y Q Song
- Department of Radiation Oncology, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education)/Peking University Cancer Hospital & Institute, Beijing 100142, China
| | - J Zhu
- Department of Radiation Oncology, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education)/Peking University Cancer Hospital & Institute, Beijing 100142, China
| | - Y Wang
- Department of Radiation Oncology, Chongqing Cancer Hospital, Chongqing 400000, China
| | - Y X Li
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
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11
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Xing R, Gao QB, Zhang FQ, Wang JL, Chen SL. Environmental filtering affects fungal communities more than dispersal limitation in a high-elevation hyperarid basin on Qinghai-Tibet Plateau. FEMS Microbiol Lett 2021; 368:6169705. [PMID: 33713124 DOI: 10.1093/femsle/fnab033] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2020] [Accepted: 03/11/2021] [Indexed: 12/13/2022] Open
Abstract
The Qaidam Basin is the most extensive (120 000 km2) basin on the Qinghai-Tibet Plataea (QTP). Recent studies have shown that environmental selection and dispersal limitation influence the soil fungal community significantly in a large-scale distance. However, less is known about large-scale soil fungal community assemblages and its response to the elevation gradient in the high-elevation basin ecosystems. We studied fungal assemblages using Illumina sequencing of the ITS1 region from 35 sites of the Qaidam Basin. As the increase of elevation, fungal species richness and Chao1 index also increased. The Ascomycota was the most abundant phylum (more than 70% of total sequences), and six of the 10 most abundance fungal family was detected in all 35 soil samples. The key factors influencing the soil fungal community composition in the Qaidam Basin were environmental filtering (soil properties and climate factors). The Mantel test showed no significant relationship between geographic distance and community similarity (r = 0.05; p = 0.81). The absence of the distance effect might be caused by lacking dispersal limitation for the soil fungal community.
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Affiliation(s)
- Rui Xing
- Key Laboratory of Adaptation and Evolution of Plateau Biota, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, 59 Xiguan Avenue, Xining, Qinghai 810001, China.,Qinghai Provincial Key Laboratory of Crop Molecular Breeding, 59 Xiguan Avenue, Xining, Qinghai 810001, China
| | - Qing-Bo Gao
- Key Laboratory of Adaptation and Evolution of Plateau Biota, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, 59 Xiguan Avenue, Xining, Qinghai 810001, China
| | - Fa-Qi Zhang
- Key Laboratory of Adaptation and Evolution of Plateau Biota, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, 59 Xiguan Avenue, Xining, Qinghai 810001, China
| | - Jiu-Li Wang
- Qinghai Nationalities University, No. 3 Bayizhonglu, Chengdong District, Xining, Qinghai 810007, China
| | - Shi-Long Chen
- Key Laboratory of Adaptation and Evolution of Plateau Biota, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, 59 Xiguan Avenue, Xining, Qinghai 810001, China
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12
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Feng X, Zhang FQ, Xu FY, Mei XF, Zhang ZC, Li XR, Wang S. [Progress of researches on animal models of Blastocystis hominis infections]. Zhongguo Xue Xi Chong Bing Fang Zhi Za Zhi 2021; 33:102-106. [PMID: 33660484 DOI: 10.16250/j.32.1374.2020162] [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: 11/27/2022]
Abstract
Blastocystis hominis is a common parasitic protozoa in human and animal intestines; however, its pathogenicity remains controversial. Construction of animal models is of great significance to investigate the pathogenicity, pathogenic mechanisms and drug screening of B. hominis. Experimental animals, mode of infections, parasite strains and host immune status are important factors affecting the successful modeling of B. hominis infections in animals. Hereby, we review the progress of researches on animal models of B. hominis infections, and summarize the influencing factors and application of animal models of B. hominis infections, in order to provides insights into the selection of animals models of B. hominis infections.
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Affiliation(s)
- X Feng
- School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang 453003, China
| | - F Q Zhang
- School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang 453003, China
| | - F Y Xu
- School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang 453003, China
| | - X F Mei
- School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang 453003, China.,Xinxiang Key Laboratory of Pathogenic Biology, Xinxiang Medical University, China
| | - Z C Zhang
- School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang 453003, China.,Xinxiang Key Laboratory of Pathogenic Biology, Xinxiang Medical University, China
| | - X R Li
- School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang 453003, China.,Xinxiang Key Laboratory of Pathogenic Biology, Xinxiang Medical University, China.,College of Veterinary Medicine, Nanjing Agricultural University, China
| | - S Wang
- School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang 453003, China.,Xinxiang Key Laboratory of Pathogenic Biology, Xinxiang Medical University, China
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13
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Zhang FQ, Wang P, Feng X, Mi QM, Mei XF, Zhang ZC, Li XR, Wang S. [Progress of researches on global prevalence of Blastocystis hominis human infections and its subtypes]. Zhongguo Xue Xi Chong Bing Fang Zhi Za Zhi 2021; 33:84-94. [PMID: 33660482 DOI: 10.16250/j.32.1374.2020083] [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: 11/27/2022]
Abstract
Blastocystis hominis is a parasite that parasitizes in the intestines of humans and animals, and is closely related to a variety of gastrointestinal diseases such as abdominal pain and diarrhea. B. hominis is distributed worldwide, and the prevalence of B. hominis infections and dominant subgenotypes vary in countries and in regions from the same country. This paper reviews the global prevalence of B. hominis human infections, its subtypes and geographical distribution, so as to provide insights into the understanding of the global epidemiology of B. hominis and the management of B. hominis infections.
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Affiliation(s)
- F Q Zhang
- School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang 453003, China
| | - P Wang
- School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang 453003, China
| | - X Feng
- School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang 453003, China
| | - Q M Mi
- School of Environmental and Geographic Sciences, Shanghai Normal University, China
| | - X F Mei
- School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang 453003, China.,Xinxiang Key Laboratory of Pathogenic Biology, Xinxiang Medical University, China
| | - Z C Zhang
- School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang 453003, China.,Xinxiang Key Laboratory of Pathogenic Biology, Xinxiang Medical University, China
| | - X R Li
- School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang 453003, China.,Xinxiang Key Laboratory of Pathogenic Biology, Xinxiang Medical University, China.,College of Veterinary Medicine, Nanjing Agricultural University, China
| | - S Wang
- School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang 453003, China.,Xinxiang Key Laboratory of Pathogenic Biology, Xinxiang Medical University, China
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14
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Miao Z, Shen J, Zhang FQ, Hu K, Hou XR, Lian X, Sun S, Yan JF, Liu ZK. [The relationship between HPV integration and prognosis of cervical cancer]. Zhonghua Zhong Liu Za Zhi 2021; 42:1014-1019. [PMID: 33342157 DOI: 10.3760/cma.j.cn112152-20191031-00705] [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 investigate the relationship between human papillomavirus (HPV) integration and prognosis of cervical cancer patients. Methods: The data of 82 patients with cervical cancer treated in the Radiotherapy Department of Peking Union Medical College Hospital from October 2004 to June 2012 were retrospectively analyzed.The patients were divided into poor prognosis group (recurrence or metastasis after surgery and adjuvant radiotherapy) and good prognosis group based on a propensity score matching strategy.The HPV integration of the two groups were detected by whole exome sequencing to determine whether the integration sites were located in the common fragile sites (CFSs). HPV integration and integration into CFSs were compared between the two groups. Results: Among the enrolled 82 patients, 37 were divided in poor survival group and 45 in good survival group. A total of 90 integration breakpoints were identified, 30 of them occurred in poor prognosis group and 60 occurred in good prognosis group. In the poor prognosis group, HPV integration occurred in 20 patients, 13 of them were inserted in CFSs of 11 patients, and the numbers in good prognosis group were 26, 17, 11, respectively. There were no significantly statistical differences in the number of HPV integration events (P=0.289), HPV integration patients (P=0.735), CFSs integration events (P=0.427), and CFSs integration patients (P=0.591) between the two groups. In poor prognosis group, more CFSs integration events occurred in patients with metastasis than those in patients with only local recurrence (9 vs 2, P=0.003). Conclusions: No significant differences are observed in HPV integration and HPV integration into CFSs between cervical cancer patients with different prognoses. HPV integration into CFSs may be associated with distant metastasis.
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Affiliation(s)
- Z Miao
- Department of Radiation Oncology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100730, China
| | - J Shen
- Department of Radiation Oncology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100730, China
| | - F Q Zhang
- Department of Radiation Oncology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100730, China
| | - K Hu
- Department of Radiation Oncology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100730, China
| | - X R Hou
- Department of Radiation Oncology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100730, China
| | - X Lian
- Department of Radiation Oncology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100730, China
| | - S Sun
- Department of Radiation Oncology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100730, China
| | - J F Yan
- Department of Radiation Oncology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100730, China
| | - Z K Liu
- Department of Radiation Oncology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100730, China
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15
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Zhang YC, Luo M, Fang XY, Zhang FQ, Cao MH. Energy value of rice, broken rice, and rice bran for broiler chickens by the regression method. Poult Sci 2020; 100:100972. [PMID: 33588342 PMCID: PMC7896147 DOI: 10.1016/j.psj.2020.12.069] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2020] [Revised: 11/19/2020] [Accepted: 12/24/2020] [Indexed: 11/20/2022] Open
Abstract
The objective of this study was to determine the ileal digestible energy (IDE), ME, and MEn of rice, broken rice, and rice bran. The birds were fed a standard starter diet from day 0 to 14 and experimental diets from day 15 to 21 after hatching. A total of 336 birds were grouped by BW and assigned to 7 diets, each diet comprised 8 replicates with 6 birds per replicate. The diets comprised a reference diet (RD) and 6 test diets (TD). The TD contained 2 levels of rice, broken rice or rice bran that partly replaced the energy sources in the RD at 120 or 240 g/kg (rice and broken rice) or 150 or 300 g/kg (rice bran). Addition of rice or broken rice to RD linearly increased (P < 0.01) ileal digestibility of DM, energy, as well as total tract metabolizability of DM, energy, and N-corrected energy in the TD. The inclusion of rice bran in the TD linearly decreased (P < 0.01) energy digestibility and utilization in the test diet. Regressions of rice-associated, broken rice-associated, or rice bran-associated IDE, ME, or MEn intake in kcal against rice, broken rice, or rice bran intake were as follows: IDE = Y = 2 (6) + 3,185 (73) × Rice + 3,199 (72) × Broken Rice + 2,562 (61) × Rice Bran, r2 = 0.98; ME = Y = 8 (6) + 3,103 (72) × Rice + 3,190 (71) × Broken Rice + 2,709 (60) × Rice Bran, r2 = 0.98; MEn = Y = 4 (5) + 3,014 (68) × Rice + 3,092 (101) × Broken Rice + 2,624 (57) × Rice Bran, r2 = 0.98; Based on the regression equations, the IDE, ME, MEn values (kcal/kg of DM) of rice were 3,185, 3,103 and 3,014, respectively, while for broken rice, the values were 3,199, 3,190, and 3,092 and for rice bran, the values were 2,562, 2,709, and 2,624, respectively.
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Affiliation(s)
- Y C Zhang
- College of Animal Science and Technology, Hunan Agriculture University, Changsha 410128, China
| | - M Luo
- International Department of Yali High School, Hunan Province, Changsha 410100, China
| | - X Y Fang
- College of Animal Science and Technology, Hunan Agriculture University, Changsha 410128, China
| | - F Q Zhang
- College of Animal Science and Technology, Hunan Agriculture University, Changsha 410128, China
| | - M H Cao
- College of Animal Science and Technology, Hunan Agriculture University, Changsha 410128, China.
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16
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Su Y, Ma XL, Wang HM, Qin H, Qin MQ, Zhang FQ, Jin M, Zhang DW, Chen CH, Zeng Q, He LJ, Ni X. [Clinical characteristics and prognostic analysis of 458 children with high-risk neuroblastoma in a single center]. Zhonghua Er Ke Za Zhi 2020; 58:796-801. [PMID: 32987457 DOI: 10.3760/cma.j.cn112140-20200525-00540] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To summarize the clinical characteristics of high-risk neuroblastoma (HR-NB) in a single center, analyze the prognostic factors of HR-NB. Methods: The clinical data of children with HR-NB who were treated and followed up at the hematology-oncology center of Beijing Children's Hospital from February 1, 2007 to June 30, 2018 were analyzed retrospectively. The clinical features were summarized. Kaplan-Meier method was used for survival analysis and Cox regression was used to analyze the prognostic factors. The last follow-up time was June 30, 2019. Results: A total of 458 children with HR-NB were enrolled in this study, including 265 males (57.9%) and 193 females (42.1%), the age at diagnosis was 40.0 months (4.5-148.0 months), the follow-up time was 22.0 months (0.2-138.0 months) and the time of tumor progression or recurrence was 15 months (1-72 months). The 5-year event-free survival (EFS) rate was (31.2±2.6)% and the 5-year overall survival (OS) rate was (43.9±3.2)%. The 5-year EFS rate and 5-year OS rate in 142 hematopoietic stem cell transplantation (HSCT) patients with bone marrow metastases were better than that in 196 non-transplantation cases with bone marrow metastases ((26.5±4.5)% vs. (25.1±3.6)%, χ²=13.773, P=0.001; (38.1±5.5)% vs. (35.7±4.7)%, χ²=9.235, P=0.002); 128 transplantation patients with bone metastases had higher 5-year EFS rate and 5-year OS rate than 188 non-transplantation cases with bone metastases ((28.5±5.0)% vs. (26.7±3.8)%, χ²=10.222, P=0.001; (37.1±6.0)% vs. (36.2±4.8)%, χ²=7.843, P=0.005). The 5-year EFS rate was higher in 37 HSCT patients with MYCN amplification than in 49 non-transplantation cases with MYCN amplification ((26.8±8.0) % vs. (20.5±6.4) %, χ²=5.732, P=0.017). No significant difference was found in 5-years OS rate between transplantation group with MYCN amplification and non-transplantation group with MYCN amplification ((31.4±8.6) % vs. (26.2±7.4) %, χ²=3.230, P=0.072). Univariate survival analysis showed that lactate dehydrogenase (LDH)≥1 500 U/L was associated with poor prognosis of patients with MYCN amplification (χ²=6.960, P=0.008). Multivariate Cox analysis showed bone marrow metastasis and LDH≥1 500 U/L were independent risk factors for poor prognosis of patients with non-MYCN amplification (HR=2.427, 1.618;95%CI:1.427-4.126, 1.275-2.054, P<0.05) for both comparisons. Conclusions: LDH≥1 500 U/L was the poor prognostic factor for patients with MYCN amplification. The bone marrow metastasis and LDH≥1 500 U/L were the poor prognostic factors for HR-NB patients with non-MYCN amplification. HSCT can improve the prognosis of patients with bone or bone marrow metastasis. It can also retard the time of progression or recurrence for patients with MYCN amplification.
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Affiliation(s)
- Y Su
- Hematology Oncology Center, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing Key Laboratory of Pediatric Hematology Oncology, National Key Discipline of Pediatrics, Ministry of Education, Key Laboratory of Major Diseases in Children, Beijing 100045, China
| | - X L Ma
- Hematology Oncology Center, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing Key Laboratory of Pediatric Hematology Oncology, National Key Discipline of Pediatrics, Ministry of Education, Key Laboratory of Major Diseases in Children, Beijing 100045, China
| | - H M Wang
- Department of Surgical Oncology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China
| | - H Qin
- Department of Surgical Oncology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China
| | - M Q Qin
- Hematology Oncology Center, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing Key Laboratory of Pediatric Hematology Oncology, National Key Discipline of Pediatrics, Ministry of Education, Key Laboratory of Major Diseases in Children, Beijing 100045, China
| | - F Q Zhang
- Department of Radiation Oncology, Beijing Union Hospital, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - M Jin
- Hematology Oncology Center, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing Key Laboratory of Pediatric Hematology Oncology, National Key Discipline of Pediatrics, Ministry of Education, Key Laboratory of Major Diseases in Children, Beijing 100045, China
| | - D W Zhang
- Hematology Oncology Center, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing Key Laboratory of Pediatric Hematology Oncology, National Key Discipline of Pediatrics, Ministry of Education, Key Laboratory of Major Diseases in Children, Beijing 100045, China
| | - C H Chen
- Department of Thoracic Surgery, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 10005, China
| | - Q Zeng
- Department of Thoracic Surgery, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 10005, China
| | - L J He
- Department of Pathology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 10004, China
| | - X Ni
- Department of Otorhinolaryngology Head and Neck Surgery, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China
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17
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Fu PC, Sun SS, Khan G, Dong XX, Tan JZ, Favre A, Zhang FQ, Chen SL. Population subdivision and hybridization in a species complex of Gentiana in the Qinghai-Tibetan Plateau. Ann Bot 2020; 125:677-690. [PMID: 31922527 PMCID: PMC7103000 DOI: 10.1093/aob/mcaa003] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2019] [Accepted: 01/08/2020] [Indexed: 05/31/2023]
Abstract
BACKGROUND AND AIMS Hosting several global biodiversity hotspots, the region of the Qinghai-Tibetan Plateau (QTP) is exceptionally species-rich and harbours a remarkable level of endemism. Yet, despite a growing number of studies, factors fostering divergence, speciation and ultimately diversity remain poorly understood for QTP alpine plants. This is particularly the case for the role of hybridization. Here, we explored the evolutionary history of three closely related Gentiana endemic species, and tested whether our results supported the mountain geo-biodiversity hypothesis (MGH). METHODS We genotyped 69 populations across the QTP with one chloroplast marker and 12 nuclear microsatellite loci. We performed phylogeographical analysis, Bayesian clustering, approximate Bayesian computation and principal components analysis to explore their genetic relationship and evolutionary history. In addition, we modelled their distribution under different climates. KEY RESULTS Each species was composed of two geographically distinct clades, corresponding to the south-eastern and north-western parts of their distribution. Thus Gentiana veitchiorum and G. lawrencei var. farreri, which diverged recently, appear to have shared at least refugia in the past, from which their range expanded later on. Indeed, climatic niche modelling showed that both species went through continuous expansion from the Last Interglacial Maximum to the present day. Moreover, we have evidence of hybridization in the northwest clade of G. lawrencei var. farreri, which probably occurred in the refugium located on the plateau platform. Furthermore, phylogenetic and population genetic analyses suggested that G. dolichocalyx should be a geographically limited distinct species with low genetic differentiation from G. lawrencei var. farreri. CONCLUSIONS Climatic fluctuations in the region of the QTP have played an important role in shaping the current genetic structure of G. lawrencei var. farreri and G. veitchiorum. We argue that a species pump effect did occur prior to the Last Interglacial Maximum, thus lending support to the MGH. However, our results do depart from expectations as suggested in the MGH for more recent distribution range and hybridization dynamics.
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Affiliation(s)
- Peng-Cheng Fu
- School of Life Science, Luoyang Normal University, Luoyang, P. R. China
| | - Shan-Shan Sun
- School of Life Science, Luoyang Normal University, Luoyang, P. R. China
| | - Gulzar Khan
- Institute for Biology and Environmental Sciences, Carl von Ossietzky University Oldenburg, Carl von Ossietzky Strasse, Oldenburg, Germany
| | - Xiao-Xia Dong
- School of Life Science, Luoyang Normal University, Luoyang, P. R. China
| | - Jin-Zhou Tan
- School of Life Science, Luoyang Normal University, Luoyang, P. R. China
| | - Adrien Favre
- Senckenberg Research Institute and Natural History Museum, Senckenberganlage, Frankfurt am Main, Germany
| | - Fa-Qi Zhang
- Key Laboratory of Adaptation and Evolution of Plateau Biota, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, P. R. China
- Qinghai Provincial Key Laboratory of Crop Molecular Breeding, Xining, P. R. China
| | - Shi-Long Chen
- Key Laboratory of Adaptation and Evolution of Plateau Biota, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, P. R. China
- Qinghai Provincial Key Laboratory of Crop Molecular Breeding, Xining, P. R. China
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Yang CR, Zhang XY, Liu Y, Du JY, Liang R, Yu M, Zhang FQ, Mu XF, Li F, Zhou L, Zhou FH, Meng FJ, Wang S, Ming D, Zhou XF. Antidepressant Drugs Correct the Imbalance Between proBDNF/p75NTR/Sortilin and Mature BDNF/TrkB in the Brain of Mice with Chronic Stress. Neurotox Res 2020; 37:171-182. [PMID: 31493120 DOI: 10.1007/s12640-019-00101-2] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2019] [Revised: 08/16/2019] [Accepted: 08/20/2019] [Indexed: 02/08/2023]
Abstract
Depression is a worldwide problem with a great social and economic burden in many countries. In our previous research, we found that the expression of proBDNF/p75NTR/sortilin is upregulated in patients with major depressive disorder. In addition, the treatment of proBDNF antibodies reversed both the depressive behaviors and the reduced BDNF mRNA detected in our rodent chronic stress models. Antidepressant drugs are usually only effective in a subpopulation of patients with major depression with a delayed time window of 2-4 weeks to exert their efficacy. The mechanism underlying such delayed response is not known. In this study, we hypothesize that antidepressant drugs exert their therapeutic effect by modulating proBDNF/p75NTR and mature BDNF/TrkB signaling pathways. To test the hypothesis, C57 mice were randomly divided into normal control, chronic unpredictable mild stress (CUMS), vehicle (VEH), fluoxetine (FLU), and clozapine (CLO) groups. Behavioral tests (sucrose preference, open field, and tail suspension tests) were performed before and after 4 weeks of CUMS. The gene and protein expression of proBDNF, the neurotrophin receptor (p75NTR), sortilin, and TrkB in the cortex and hippocampus were examined. At the protein level, CUMS induced a significant increase in proBDNF, p75NTR, and sortilin production while the TrkB protein level was found to be lower in the cortex and hippocampus compared with the control group. Consistently, at the mRNA level, p75NTR expression increased with reduced BDNF/TrkB mRNA in both cortex and hippocampus, while sortilin increased only in the hippocampus after CUMS. FLU and CLO treatments of CUMS mice reversed all protein and mRNA expression of the biomarkers in both cortex and hippocampus, except for sortilin mRNA in the cortex and proBDNF in the hippocampus, respectively. This study further confirms that the imbalance between proBDNF/p75NTR/sortilin and mBDNF/TrkB production is important in the pathogenesis of depression. It is likely that antidepressant FLU and antipsychotic CLO exert their antidepressant-like effect correcting the imbalance between proBDNF/p75NTR/sortilin and mBDNF/TrkB.
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Affiliation(s)
- C R Yang
- Department of Pathology, The Second Hospital of Tianjin Medical University, Tianjin, People's Republic of China
- Academy of Medical Engineering and Translational Medicine, Tianjin University, Tianjin, People's Republic of China
| | - X Y Zhang
- Department of Pathology, The Second Hospital of Tianjin Medical University, Tianjin, People's Republic of China
| | - Y Liu
- Tianjin Mental Health Center, Tianjin, People's Republic of China
| | - J Y Du
- Tianjin Mental Health Center, Tianjin, People's Republic of China
| | - R Liang
- Department of Pathology, The Second Hospital of Tianjin Medical University, Tianjin, People's Republic of China
| | - M Yu
- Department of Pathology, The Second Hospital of Tianjin Medical University, Tianjin, People's Republic of China
| | - F Q Zhang
- Department of Neurology, Second Hospital of Tianjin Medical University, Tianjin, People's Republic of China
| | - X F Mu
- Department of Clinical Laboratory, Qingdao Central Hospital, Qingdao, Shandong Province, People's Republic of China
| | - F Li
- Department of Anatomy and Neurobiology, School of Basic Medical Science, Central South University, Changsha, Hunan Province, People's Republic of China
| | - L Zhou
- The Mental Hospital of Yunnan Province, Kunming, Yunnan Province, People's Republic of China
| | - F H Zhou
- School of Pharmacology and Medical Science, University of South Australia, Adelaide, 5000, Australia
| | - F J Meng
- Department of Thoracic Surgery, Second Hospital of Tianjin Medical University, Tianjin, People's Republic of China
| | - S Wang
- Department of Thoracic Surgery, Second Hospital of Tianjin Medical University, Tianjin, People's Republic of China
| | - D Ming
- Academy of Medical Engineering and Translational Medicine, Tianjin University, Tianjin, People's Republic of China.
| | - X F Zhou
- School of Pharmacology and Medical Science, University of South Australia, Adelaide, 5000, Australia.
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Zhang Y, Li XM, Jiang H, Zhang FQ, Jin YQ, Liu HJ, Ge HY. [Clinical analysis of right atrial appendage aneurysms complicated by atrial tachyarrhythmias in three children]. Zhonghua Er Ke Za Zhi 2019; 57:98-102. [PMID: 30695882 DOI: 10.3760/cma.j.issn.0578-1310.2019.02.007] [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 investigate the clinical features and results of treatment for right atrial appendage aneurysms complicated by atrial tachyarrhythmias in children. Methods: This retrospective study included three children with right atrial appendage aneurysm complicated by atrial tachyarrhythmias (aged 1.0 to 5.3 years, weight 10 to 17.1 kg) who were hospitalized at the Pediatric Cardiology Department (Heart Center) of the First Hospital of Tsinghua University (Beijing Huaxin Hospital) during the period from January 2016 through April 2018. The patients' clinical features, the results of electrocardiogram (ECG) and echocardiography, the effects of therapeutic interventions (antiarrhythmics, radiofrequency ablation, and surgical resection of right atrial appendage aneurysm) and the results of pathological assessment were analyzed. Results: Three cases of right atrial appendage aneurysm were diagnosed at 36 weeks of gestational age, 1 month and 4 months after birth respectively. In two cases, ECG showed alternating episodes of atrial tachyarrhythmias including atrial tachycardia, atrial flutter, and atrial fibrillation, and echocardiography showed aneurysmal dilatation of right atrial appendage. These two cases underwent right atrial appendage aneurysm resection. In the remaining one case of atrial tachycardia, echocardiography did not visualize important lesions in the right atrium, thus the intracardiac electrophysiologic study and radiofrequency ablation were performed; and focal atrial tachycardia originating from the apex of right atrial appendage was mapped but failed to be ablated; consequently, the patient received the right atrial appendage resection, in which the right atrial appendage aneurysm was found. Preoperative multiple antiarrhythmics showed only modest or no efficacy for all the three cases. The atrial tachyarrhythmias disappeared in all the three cases after right atrial appendage aneurysm resection. Postoperative atrial tachycardias associated with new foci of impulse formation developed in two cases. These two patients reverted to normal sinus rhythm and remained in this rhythm by using antiarrhythmics. Pathological assessment showed cystic dilation of parts of atrial cavity, fibrosis of cyst wall, generalized fibrosis of atrial myocardium combined with myocardial atrophy and cystic dilation, as well as uneven myocardial thickness with generalized myocardial interstitial fibrosis. Conclusions: For patients with congenital right atrial appendage aneurysm, atrial tachyarrhythmias might develop during fetal stage or early postpartum period. Reliance on echocardiography might often lead to the missed diagnosis. These patients with atrial tachyarrhythmias responded poorly to antiarrhythmics. Radiofrequency ablation might be associated with a high risk and limited efficacy. Surgical resection of right atrial appendage aneurysm showed satisfactory results and should be highly recommended.
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Affiliation(s)
- Y Zhang
- School of Clinical Medicine, Tsinghua University, Beijing 100084, China
| | - X M Li
- Department of Pediatric Cardiology, Heart Center, the First Hospital of Tsinghua University (Beijing Huaxin Hospital), Beijing 100016, China
| | - H Jiang
- Department of Pediatric Cardiology, Heart Center, the First Hospital of Tsinghua University (Beijing Huaxin Hospital), Beijing 100016, China
| | - F Q Zhang
- Department of Pediatric Cardiology, Heart Center, the First Hospital of Tsinghua University (Beijing Huaxin Hospital), Beijing 100016, China
| | - Y Q Jin
- Department of Pediatric Cardiology, Heart Center, the First Hospital of Tsinghua University (Beijing Huaxin Hospital), Beijing 100016, China
| | - H J Liu
- Department of Pediatric Cardiology, Heart Center, the First Hospital of Tsinghua University (Beijing Huaxin Hospital), Beijing 100016, China
| | - H Y Ge
- Department of Pediatric Cardiology, Heart Center, the First Hospital of Tsinghua University (Beijing Huaxin Hospital), Beijing 100016, China
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Shen J, Yuan Y, Hu K, Lian X, Hou XR, Sun S, Yan JF, Liu ZK, Zhang FQ. [Survival and prognostic factors analysis of primitive neuroectodermal tumor]. Zhonghua Zhong Liu Za Zhi 2018; 40:614-618. [PMID: 30139033 DOI: 10.3760/cma.j.issn.0253-3766.2018.08.010] [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 investigate the clinical features and prognosis of primitive neuroectodermal tumor (PNET). Methods: The clinical data of 99 patients with PNET from February 1, 1998 to February 1, 2017 were retrospectively analyzed. Univariate analysis was performed using Kaplan-Meier and Log rank test. Multiviate Cox regression was applied to analyzed independent prognostic factor for patient survival. Results: Among the 99 patients, 81 were peripheral PNET(pPNET) and 18 were central PNET (cPNET) . Biopsy was performed exclusively in 16 cases, with R0 resection in 61 cases, with R1 resection in 4 cases, and with R2 resection in 18 cases. Twelve patients underwent surgery only, nine had chemotherapy only, and one received radiotherapy only. There were 72 patients who had combined treatment including chemotherapy, and 48 patients had combined therapy including radiotherapy. The one-year, three-year and five-year overall survival(OS) rates of the 99 PNET patients were 79.2%, 63.9% and 56.1% respectively, and median OS time was 14.0 months. The one-year, three-year and five-year progression free survival (PFS) rates of these patients were 42.7%, 25.7% and 19.8% respectively, and median PFS time was 8.0 months. The univariate analysis revealed that lymph node metastasis, surgical resection, numbers of cycles of chemotherapy and radiotherapy dose were the main factors affecting the OS (all P<0.05). Gender, age, lymph node metastasis, staging, and chemotherapy cycles were related to PFS in PNET patients (P<0.05). Multivariate analysis showed that the degree of surgical resection, chemotherapy cycle, and radiotherapy dosage were independent influencing factors of OS in PNET patients (risk ratio=1.856, 0.398, and 0.408, respectively, all P<0.05), and gender was an independent factor influencing PFS in PNET patients (risk ratio=0.494, P<0.05). Conclusions: Comprehensive therapy is the main therapy for PNET patients. The surgical resection, cycles of chemotherapy and radiotherapy dosage are independent prognostic factors for patient's OS.
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Affiliation(s)
- J Shen
- Department of Radiation Oncology, Peking Union Medical College Hospital, Beijing 100730, China
| | - Y Yuan
- Department of Radiation Oncology, Nanshi Hospital of Nanyang, Nanyang 473005, China
| | - K Hu
- Department of Radiation Oncology, Peking Union Medical College Hospital, Beijing 100730, China
| | - X Lian
- Department of Radiation Oncology, Peking Union Medical College Hospital, Beijing 100730, China
| | - X R Hou
- Department of Radiation Oncology, Peking Union Medical College Hospital, Beijing 100730, China
| | - S Sun
- Department of Radiation Oncology, Peking Union Medical College Hospital, Beijing 100730, China
| | - J F Yan
- Department of Radiation Oncology, Peking Union Medical College Hospital, Beijing 100730, China
| | - Z K Liu
- Department of Radiation Oncology, Peking Union Medical College Hospital, Beijing 100730, China
| | - F Q Zhang
- Department of Radiation Oncology, Peking Union Medical College Hospital, Beijing 100730, China
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Liu HR, Gao QB, Zhang FQ, Khan G, Chen SL. Westwards and northwards dispersal of Triosteum himalayanum (Caprifoliaceae) from the Hengduan Mountains region based on chloroplast DNA phylogeography. PeerJ 2018; 6:e4748. [PMID: 29770273 PMCID: PMC5951126 DOI: 10.7717/peerj.4748] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2018] [Accepted: 04/22/2018] [Indexed: 11/20/2022] Open
Abstract
The varying topography and environment that resulted from paleoorogeny and climate fluctuations of the Himalaya–Hengduan Mountains (HHM) areas had a considerable impact on the evolution of biota during the Quaternary. To understand the phylogeographic pattern and historical dynamics of Triosteum himalayanum (Caprifoliaceae), we sequenced three chloroplast DNA fragments (rbcL-accD, rps15-ycf1, and trnH-psbA) from 238 individuals representing 20 populations. Nineteen haplotypes (H1–H19) were identified based on 23 single-site mutations and eight indels. Most haplotypes were restricted to a single population or neighboring populations. Analysis of molecular variance revealed that variations among populations were much higher than that within populations for the overall gene pool, as well as for the East Himalayan group (EH group) and the North Hengduan group (NHM group), but not for the Hengduan Mountains group (HM group). Ecoregions representing relatively high genetic diversity or high frequencies of private haplotypes were discovered, suggesting that this alpine herbaceous plant underwent enhanced allopatric divergence in isolated and fragmented locations during the Quaternary glaciations. The current phylogeographic structure of T. himalayanum might be due to heterogeneous habitats and Quaternary climatic oscillations. Based on the phylogeographic structure of T. himalayanum populations, the phylogenetic relationship of identified haplotypes and palaeodistributional reconstruction, we postulated both westwards and northwards expansion from the HM group for this species. The westwards dispersal corridor could be long, narrow mountain areas and/or the Yarlung Zangbo Valley, while the northwards movement path could be south–north oriented mountains and low-elevation valleys.
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Affiliation(s)
- Hai-Rui Liu
- Key Laboratory of Adaptation and Evolution of Plateau Biota, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, China.,University of Chinese Academy of Sciences, Beijing, China
| | - Qing-Bo Gao
- Key Laboratory of Adaptation and Evolution of Plateau Biota, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, China.,Qinghai Provincial Key Laboratory of Crop Molecular Breeding, Xining, China
| | - Fa-Qi Zhang
- Key Laboratory of Adaptation and Evolution of Plateau Biota, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, China
| | - Gulzar Khan
- Key Laboratory of Adaptation and Evolution of Plateau Biota, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, China
| | - Shi-Long Chen
- Key Laboratory of Adaptation and Evolution of Plateau Biota, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, China
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22
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Xing R, Yan HY, Gao QB, Zhang FQ, Wang JL, Chen SL. Microbial communities inhabiting the fairy ring of Floccularia luteovirens and isolation of potential mycorrhiza helper bacteria. J Basic Microbiol 2018; 58:554-563. [PMID: 29572997 DOI: 10.1002/jobm.201700579] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2017] [Revised: 12/25/2017] [Accepted: 02/03/2018] [Indexed: 11/08/2022]
Abstract
Floccularia luteovirens, an important edible mushroom widely distributed in the Qinghai-Tibet plateau, is ecologically important as an ectomycorrhizal fungus and can form the fairy ring. To explore the influence of F. luteovirens fairy ring on soil microbial communities, we compared the soil microbial communities in three different fairy ring zones (inside the fairy ring (IN); beneath the fairy ring (ON); and outside the fairy ring (OUT)). A total of 1.77 million bacterial reads and 1.59 million fungal reads were obtained. Moreover, sequence clustering yielded 519,613 (57,735 per sample) bacterial OTUs, and 513,204 (57,023 per sample) fungal OTUs representing. Microbial diversity was lower in samples from the ON zone compared with the other two zones. Mycorrhiza helper bacteria (MHB) such as Bradyrhizobium and Paenibacillus were more common in the ON zone, and we isolated four potential MHB from rhizosphere soil. Canonical correspondence analysis showed that the soil nutritional condition and physical changes caused by F. luteovirens shaped the microbial communities in the ON zone. This is the first report on the study of soil microbial diversity influenced by fairy ring F. luteovirens, and further studies need to be conducted to study the ecological function influenced by this species.
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Affiliation(s)
- Rui Xing
- Key Laboratory of Adaptation and Evolution of Plateau Biota, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, Qinghai, P.R. China.,Key Laboratory of Crop Molecular Breeding of Qinghai Province, Xining, Qinghai, P.R. China
| | - Hui-Ying Yan
- University of Chinese Academy of Sciences, Beijing, P. R. China
| | - Qing-Bo Gao
- Key Laboratory of Adaptation and Evolution of Plateau Biota, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, Qinghai, P.R. China
| | - Fa-Qi Zhang
- Key Laboratory of Adaptation and Evolution of Plateau Biota, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, Qinghai, P.R. China
| | - Jiu-Li Wang
- University of Chinese Academy of Sciences, Beijing, P. R. China
| | - Shi-Long Chen
- Key Laboratory of Adaptation and Evolution of Plateau Biota, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, Qinghai, P.R. China
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Sun SS, Fu PC, Zhou XJ, Cheng YW, Zhang FQ, Chen SL, Gao QB. The Complete Plastome Sequences of Seven Species in Gentiana sect. Kudoa (Gentianaceae): Insights Into Plastid Gene Loss and Molecular Evolution. Front Plant Sci 2018; 9:493. [PMID: 29765380 PMCID: PMC5938401 DOI: 10.3389/fpls.2018.00493] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/29/2017] [Accepted: 04/03/2018] [Indexed: 05/15/2023]
Abstract
The chloroplast (cp) genome is useful in the study of phylogenomics, molecular dating, and molecular evolution. Gentiana sect. Kudoa is a predominantly alpine flowering plant that is valued for its contributions to medicine, ecology, and horticulture. Previous evolutionary studies showed that the plastid gene loss pattern and intra-sectional phylogenetics in sect. Kudoa are still unclear. In this study, we compared 11 Gentiana plastomes, including 7 newly sequenced plastomes from sect. Kudoa, to represent its three serious: ser. Ornatae, ser. Verticillatae, and ser. Monanthae. The cp genome sizes of the seven species ranged from 137,278 to 147,156 bp. The plastome size variation mainly occurred in the small single-copy and long single-copy regions rather than the inverted repeat regions. Compared with sect. Cruciata, the plastomes in ser. Ornatae and ser. Verticillatae had lost approximately 11 kb of sequences containing 11 ndh genes. Conversely, far fewer losses were observed in ser. Monanthae. The phylogenetic tree revealed that sect. Kudoa was not monophyletic and that ser. Monanthae was more closely related to other sections rather than sect. Kudoa. The molecular dating analysis indicated that ser. Monanthae and sect. Kudoa diverged around 8.23 Ma. In ser. Ornatae and ser. Verticillatae, the divergence occurred at around 0.07-1.78 Ma. The nucleotide diversity analysis indicated that the intergenic regions trnH-psbA, trnK-trnQ, ycf3-trnS and rpl32-trnL constituted divergence hotspots in both sect. Kudoa and Gentiana, and would be useful for future phylogenetic and population genetic studies.
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Affiliation(s)
- Shan-Shan Sun
- College of Life Science, Luoyang Normal University, Luoyang, China
| | - Peng-Cheng Fu
- College of Life Science, Luoyang Normal University, Luoyang, China
| | - Xiao-Jun Zhou
- College of Life Science, Luoyang Normal University, Luoyang, China
| | - Yan-Wei Cheng
- College of Life Science, Luoyang Normal University, Luoyang, China
| | - Fa-Qi Zhang
- Key Laboratory of Adaptation and Evolution of Plateau Biota, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, China
- Qinghai Provincial Key Laboratory of Crop Molecular Breeding, Xining, China
| | - Shi-Long Chen
- Key Laboratory of Adaptation and Evolution of Plateau Biota, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, China
| | - Qing-Bo Gao
- Key Laboratory of Adaptation and Evolution of Plateau Biota, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, China
- Qinghai Provincial Key Laboratory of Crop Molecular Breeding, Xining, China
- *Correspondence: Qing-Bo Gao,
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Gu XY, Chen XB, Jiao T, Zhang FQ, Jiang XQ. [Application of negative molds technology based on three-dimensional printing in digital maxillofacial prostheses]. Zhonghua Kou Qiang Yi Xue Za Zhi 2017; 52:336-341. [PMID: 28613053 DOI: 10.3760/cma.j.issn.1002-0098.2017.06.003] [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 explore a digital negative molds technique based on three-dimensional (3D) printing to assist in the manufacture of maxillofacial prostheses, and to improve the deficiency of the current clinical treatment. Methods: Seventeen patients with maxillofacial defects (including nasal defects, orbital defects, cheek defects, auricle defect) were scanned by means of facial optical scanning and computer tomography (CT). The 3D models were then reconstructed and global registration was made to merge the reconstructed models into a new digital model for 3D design. The 3D design of the prostheses was implemented in software. The mechanical connection structure was designed by forward engineering technology for 3 patients with intra-oral defects in maxilla who needed to make removable partial dentures, so that the silicone prostheses and removable partial denture could be combined. The removable partial dentures were made by conventional method and connected with the prostheses. According to the 3D data of the prostheses, the digital negative molds were designed, and the 3D printing technology was used to finish the processing of the resin molds. Silicone for prostheses were filled and cured in the resin molds to fabricate the clinical restorations for the patients. The margin adaptation and retention of the prostheses was detected. Results: Twenty patients with varying degrees of maxillofacial defects were rehabilitated using the courses developed in the study. All patients reported no pain or discomfort during the treatment; and they were satisfied with the final prostheses of the shape, color, retention, stability, etc. Eighteen of the prostheses showed good marginal adaptation, and sixteen of the prostheses showed good retention effect. Conclusions: The digital negative molds technique used in this study could greatly reduce the intensity of manual operation and provided a good therapeutic effect for patients with maxillofacial defects.
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Affiliation(s)
- X Y Gu
- Department of Prosthodontics, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine & Shanghai Key Laboratory of Stomatology, Shanghai 200011, China
| | - X B Chen
- School of Mechanical Engineering, Shanghai Jiao Tong University & Shanghai Key Laboratory of Advanced Manufacturing Environment, Shanghai 200240, China
| | - T Jiao
- Department of Prosthodontics, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine & Shanghai Key Laboratory of Stomatology, Shanghai 200011, China
| | - F Q Zhang
- Department of Prosthodontics, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine & Shanghai Key Laboratory of Stomatology, Shanghai 200011, China
| | - X Q Jiang
- Department of Prosthodontics, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine & Shanghai Key Laboratory of Stomatology, Shanghai 200011, China
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Xing R, Gao QB, Zhang FQ, Fu PC, Wang JL, Yan HY, Chen SL. Genetic variation and phylogenetic relationships of the ectomycorrhizal Floccularia luteovirens on the Qinghai-Tibet Plateau. J Microbiol 2017; 55:600-606. [PMID: 28674972 DOI: 10.1007/s12275-017-7101-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [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: 03/08/2017] [Revised: 06/01/2017] [Accepted: 06/07/2017] [Indexed: 11/24/2022]
Abstract
Floccularia luteovirens, as an ectomycorrhizal fungus, is widely distributed in the Qinghai-Tibet Plateau. As an edible fungus, it is famous for its unique flavor. Former studies mainly focus on the chemical composition and genetic structure of this species. However, the phylogenetic relationship between genotypes remains unknown. In this study, the genetic variation and phylogenetic relationship between the genotypes of F. luteovirens in Qinghai-Tibet Plateau was estimated through the analysis on two protein-coding genes (rpb1 and ef-1α) from 398 individuals collected from 24 wild populations. The sample covered the entire range of this species during all the growth seasons from 2011 to 2015. 13 genotypes were detected and moderate genetic diversity was revealed. Based on the results of network analysis, the maximum likelihood (ML), maximum parsimony (MP), and Bayesian inference (BI) analyses, the genotypes H-1, H-4, H-6, H-8, H-10, and H-11 were grouped into one clade. Additionally, a relatively higher genotype diversity (average h value is 0.722) and unique genotypes in the northeast edge of Qinghai- Tibet plateau have been found, combined with the results of mismatch analysis and neutrality tests indicated that Southeast Qinghai-Tibet plateau was a refuge for F. luteovirens during the historical geological or climatic events (uplifting of the Qinghai-Tibet Plateau or Last Glacial Maximum). Furthermore, the present distribution of the species on the Qinghai-Tibet plateau has resulted from the recent population expansion. Our findings provide a foundation for the future study of the evolutionary history and the speciation of this species.
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Affiliation(s)
- Rui Xing
- Key Laboratory of Adaptation and Evolution of Plateau Biota, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, 59 Xiguan Avenue, Xining Qinghai, 810001, P. R. China.,Key Laboratory of Crop Molecular Breeding of Qinghai Provice, Qinghai, P. R. China
| | - Qing-Bo Gao
- Key Laboratory of Adaptation and Evolution of Plateau Biota, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, 59 Xiguan Avenue, Xining Qinghai, 810001, P. R. China
| | - Fa-Qi Zhang
- Key Laboratory of Adaptation and Evolution of Plateau Biota, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, 59 Xiguan Avenue, Xining Qinghai, 810001, P. R. China.,Key Laboratory of Eco-Environments of Three Gorges Reservoir Region, Ministry of Education, School of Life Sciences, Southwest University, Chongqing, 400715, P. R. China
| | - Peng-Cheng Fu
- Key Laboratory of Adaptation and Evolution of Plateau Biota, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, 59 Xiguan Avenue, Xining Qinghai, 810001, P. R. China
| | - Jiu-Li Wang
- Key Laboratory of Adaptation and Evolution of Plateau Biota, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, 59 Xiguan Avenue, Xining Qinghai, 810001, P. R. China
| | - Hui-Ying Yan
- Key Laboratory of Adaptation and Evolution of Plateau Biota, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, 59 Xiguan Avenue, Xining Qinghai, 810001, P. R. China
| | - Shi-Long Chen
- Key Laboratory of Adaptation and Evolution of Plateau Biota, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, 59 Xiguan Avenue, Xining Qinghai, 810001, P. R. China.
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Ning LT, Dong GZ, Ao C, Zhang DG, Erdene K, Zhang FQ, Wen J, Zhang TL. Effects of continuous low dose infusion of lipopolysaccharide on inflammatory responses, milk production and milk quality in dairy cows. J Anim Physiol Anim Nutr (Berl) 2017; 102:e262-e269. [PMID: 28503821 DOI: 10.1111/jpn.12737] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2016] [Accepted: 04/06/2017] [Indexed: 11/30/2022]
Abstract
The objective of this study was to evaluate the effects of continuous low dose infusion of lipopolysaccharide (LPS) on inflammatory responses and milk production and quality in lactating dairy cows. Eight Holstein cows were assigned to two treatments in a cross-over experimental design. Cows were infused intravenously either with saline solution or with saline solution containing LPS from Escherichia coli O111:B4 at a dose of 0.01 μg LPS/kg body weight for approximately 6 hr each day during a seven-day trial. The clinical symptoms and milk production performance were observed. Milk samples were analysed for conventional components, fatty acids and amino acids. And jugular vein and mammary vein plasma samples were analysed for concentrations of cytokines and acute phase proteins. LPS infusion decreased feed intake and milk yield. An increase in body temperature was observed after LPS infusion. LPS infusion also increased plasma concentrations of interleukin-1β, serum amyloid A, LPS-binding protein, C-reactive protein and haptoglobin. LPS infusion decreased the contents of some fatty acids, such as C17:1, C18:0, C18:1n9 (trans) and C18:2n6 (trans), and most amino acids except for methionine, threonine, histidine, cysteine, tyrosine and proline in the milk. The results indicated that a continued low dose infusion of LPS can induce an inflammatory response, decrease milk production and reduce milk quality.
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Affiliation(s)
- L T Ning
- Key Laboratory of Grass and Herbivores of Chongqing, College of Animal Science and Technology, Southwest University, Chongqing, China
| | - G Z Dong
- Key Laboratory of Grass and Herbivores of Chongqing, College of Animal Science and Technology, Southwest University, Chongqing, China
| | - C Ao
- College of Animal Science, Inner Mongolia Agricultural University, Hohhot, China
| | - D G Zhang
- Key Laboratory of Grass and Herbivores of Chongqing, College of Animal Science and Technology, Southwest University, Chongqing, China
| | - K Erdene
- College of Animal Science, Inner Mongolia Agricultural University, Hohhot, China
| | - F Q Zhang
- College of Animal Science, Inner Mongolia Agricultural University, Hohhot, China
| | - J Wen
- College of Animal Science, Inner Mongolia Agricultural University, Hohhot, China
| | - T L Zhang
- College of Animal Science, Inner Mongolia Agricultural University, Hohhot, China
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Yang YY, Zhang FQ, Pan Y, Chen F, Huang MJ, Zeng DY, Huang HG. [Quantity of Treg cells and Th17 cells in spleen of primary immune thrombocytopenic purpura patients]. Zhonghua Xue Ye Xue Za Zhi 2017; 38:227-230. [PMID: 28395447 PMCID: PMC7348390 DOI: 10.3760/cma.j.issn.0253-2727.2017.03.010] [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] [MESH Headings] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/14/2016] [Indexed: 11/24/2022]
Abstract
Objective: To observe the quantity of Treg cells and Th17 cells in spleen of adult primary immune thrombocytopenic purpura (ITP) patients. Methods: 43 ITP cases with splenectomy treatment were enrolled from December 2008 to June 2016 at Union Hospital of Fujian Medical University, including 20 males and 23 females with a median age of 36 (18-76) years. The controls were thirty patients who underwent splenectomy because of pancreatic diseases or splenic impairment, including 21 males and 9 females with a median age of 47 (21-69) years. The quantity and ratio of Treg cells and Th17 cells were examined by immunohistochemistry between ITP patients and controls. Results: ①The quantity of Treg cells in ITP were less than controls[ (11.3±4.7) /mm(2) vs (59.0±15.0) /mm(2), t=-22.894, P<0.001], but Th17 cells were more than controls[ (235.2±69.4) /mm(2) vs (181.1±23.7) /mm(2), t=13.768, P<0.001]. So the ratio of Treg/Th17 in ITP was lower than controls (0.048±0.027 vs 0.328±0.086, t=19.522, P<0.001) . ② The quantity of Treg cells in cases without response after splenectomy were less than cases with response[ (9.5±5.0) /mm(2) vs (11.6±4.7) /mm(2), t=2.723, P=0.010], and there is no statistical differences between the two groups about the quantity of Th17 cells and the ratio of Treg/Th17 cells[ (232.3±80.8) /mm(2) vs (239.6±66.9) /mm(2), t=1.108, P=0.277; 0.040±0.024 vs 0.053±0.027, t=0.540, P=0.592]. Conclusions: There is a significant difference about the quantity of Treg cells and Th17 cells in spleen between ITP patients and healthy controls, and they are relevant to the response after splenectomy.
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Affiliation(s)
- Y Y Yang
- Department of Genery Surgery, Fujian Medical University Union Hospital, Fuzhou 350001, China
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Kong Q, Zhao HY, Tian K, Duan BF, Hu YY, Hu TS, Zhang YG, Zhang WD, Zhang FQ. [Molecular analysis of hemagglutinin and neuraminidase genes of avian influenza virus H5N6 subtype in the border of Yunnan Province from 2014 to 2015]. Zhonghua Yu Fang Yi Xue Za Zhi 2016; 50:1105-1107. [PMID: 28057117 DOI: 10.3760/cma.j.issn.0253-9624.2016.12.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Affiliation(s)
- Q Kong
- Faculty of Animal Science and Technology, Yunnan Agriculture University, Kunming 650201, China
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Fu PC, Gao QB, Zhang FQ, Xing R, Wang JL, Liu HR, Chen SL. Gene Flow Results in High Genetic Similarity between Sibiraea (Rosaceae) Species in the Qinghai-Tibetan Plateau. Front Plant Sci 2016; 7:1596. [PMID: 27826314 PMCID: PMC5078775 DOI: 10.3389/fpls.2016.01596] [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] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/15/2016] [Accepted: 10/10/2016] [Indexed: 06/06/2023]
Abstract
Studying closely related species and divergent populations provides insight into the process of speciation. Previous studies showed that the Sibiraea complex's evolutionary history on the Qinghai-Tibetan Plateau (QTP) was confusing and could not be distinguishable on the molecular level. In this study, the genetic structure and gene flow of Sibiraea laevigata and Sibiraea angustata on the QTP was examined across 45 populations using 8 microsatellite loci. Microsatellites revealed high genetic diversity in Sibiraea populations. Most of the variance was detected within populations (87.45%) rather than between species (4.39%). We found no significant correlations between genetic and geographical distances among populations. Bayesian cluster analysis grouped all individuals in the sympatric area of Sibiraea into one cluster and other individuals of S. angustata into another. Divergence history analysis based on the approximate Bayesian computation method indicated that the populations of S. angustata at the sympatric area derived from the admixture of the 2 species. The assignment test assigned all individuals to populations of their own species rather than its congeneric species. Consistently, intraspecies were detected rather than interspecies first-generation migrants. The bidirectional gene flow in long-term patterns between the 2 species was asymmetric, with more from S. angustata to S. laevigata. In conclusion, the Sibiraea complex was distinguishable on the molecular level using microsatellite loci. We found that the high genetic similarity of the complex resulted from huge bidirectional gene flow, especially on the sympatric area where population admixtures occurred. This study sheds light on speciation with gene flow in the QTP.
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Affiliation(s)
- Peng-Cheng Fu
- Key Laboratory of Adaptation and Evolution of Plateau Biota, Northwest Institute of Plateau Biology, Chinese Academy of SciencesXining, China
- College of Life Science, Luoyang Normal UniversityLuoyang, China
| | - Qing-Bo Gao
- Key Laboratory of Adaptation and Evolution of Plateau Biota, Northwest Institute of Plateau Biology, Chinese Academy of SciencesXining, China
| | - Fa-Qi Zhang
- Key Laboratory of Adaptation and Evolution of Plateau Biota, Northwest Institute of Plateau Biology, Chinese Academy of SciencesXining, China
| | - Rui Xing
- Key Laboratory of Adaptation and Evolution of Plateau Biota, Northwest Institute of Plateau Biology, Chinese Academy of SciencesXining, China
| | - Jiu-Li Wang
- Key Laboratory of Adaptation and Evolution of Plateau Biota, Northwest Institute of Plateau Biology, Chinese Academy of SciencesXining, China
- College of Life Science, University of Chinese Academy of SciencesBeijing, China
| | - Hai-Rui Liu
- Key Laboratory of Adaptation and Evolution of Plateau Biota, Northwest Institute of Plateau Biology, Chinese Academy of SciencesXining, China
- College of Life Science, University of Chinese Academy of SciencesBeijing, China
| | - Shi-Long Chen
- Key Laboratory of Adaptation and Evolution of Plateau Biota, Northwest Institute of Plateau Biology, Chinese Academy of SciencesXining, China
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Abstract
Diabetic retinopathy (DR), an important complication of diabetes mellitus (DM), is not well understood. T helper cell balance (Th1/Th2) is involved in various autoimmune diseases; however, its role in DR is not understood. This study explores changes in Th1 and Th2 cytokine expression during DR. Blood samples were collected from 25 healthy volunteers (normal control group), 35 patients with type 2 DM (T2DM group) without DR, and 30 cases of T2DM patients with DR (DR group). Real-time PCR was used to measure mRNA expression of IL-2 and TNF-α, secreted from Th1 cells, and of IL-4 and IL-10, secreted from Th2 cells. We used ELISA to detect cytokine expression in serum to analyze the correlation between Th1 and Th2 cytokines. IL-2 and TNF-αmRNA and protein expression levels in the T2DM and DR groups were significantly higher than in the normal control group (P < 0.05). Compared with the T2DM group, the DR group had higher IL-2 and TNF-αlevels (P < 0.05). IL-4 and IL-10 levels were lower in the DR group compared with the normal and T2DM groups (P < 0.05), while T2DM showed no difference compared with the normal control (P > 0.05). IL-2 and TNF-αwere negatively correlated with IL-4 and IL-10 in the DR group, respectively. We found that Th1 cytokine secretion was higher and Th2 cytokines secretion was lower during DR, leading to a Th1/ Th2 imbalance, suggesting that Th1/Th2 imbalance is a side effect for DR occurrence and development.
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Affiliation(s)
- Y L Cao
- Department of Ophthalmology, Weifang Medical University, Weifang, Shandong Province, China
| | - F Q Zhang
- Department of Medical Ultrasonics, Affiliated Hospital of Weifang Medical University, Weifang, Shandong Province, China
| | - F Q Hao
- Department of Ophthalmology, Weifang Medical University, Weifang, Shandong Province, China
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Huang KD, Shen Y, Wei X, Zhang FQ, Liu YY, Ma L. Inhibitory effect of microRNA-27b on interleukin 17 (IL-17)-induced monocyte chemoattractant protein-1 (MCP1) expression. Genet Mol Res 2016; 15:gmr7784. [PMID: 27420992 DOI: 10.4238/gmr.15027784] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
We investigated the effect of microRNA-27b (miR-27b), a gene expression regulatory factor, on the expression of monocyte chemoattractant protein-1 (MCP1) stimulated by interleukin 17 (IL-17). After IL-17 had been added to H9C2 cardiomyocytes, an miR-27b mimic was transfected into the H9C2 cells. The mRNA expression levels of miR-27b and MCP1 in the H9C2 cells were detected by SYBR green I fluorescence quantitative reverse transcription polymerase chain reaction. Enzyme-linked immunosorbent assay was used to measure the expression levels of MCP1 protein in the H9C2 cells. The expression of MCP1 mRNA in the H9C2 cells began to increase 2 h after IL-17 stimulation, reached a peak at 4 h, and then decreased. The MCP1 protein level increased gradually in the 24 h following IL-17 stimulation. After transfection with the miR-27b mimic, the expression of miR-27b in the H9C2 cells significantly increased than that in the miRNA negative control group (P < 0.01). The MCP1 mRNA and protein levels in the miR-27b mimic + IL-17 group were significantly reduced than that in the miRNA negative control + IL-17 group (P < 0.01). miR-27b inhibited IL-17-induced MCP1 expression in the H9C2 cells, which demonstrates that treatment with microRNA could alleviate myocardial injury in viral myocarditis.
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Affiliation(s)
- K D Huang
- Clinical Laboratory Department, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Y Shen
- Clinical Laboratory Department, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - X Wei
- Clinical Laboratory Department, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - F Q Zhang
- Clinical Laboratory Department, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Y Y Liu
- Clinical Laboratory Department, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - L Ma
- Clinical Laboratory Department, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
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Fu PC, Gao QB, Zhang FQ, Xing R, Khan G, Wang JL, Liu HR, Chen SL. Responses of plants to changes in Qinghai–Tibetan Plateau and glaciations: Evidence from phylogeography of a Sibiraea (Rosaceae) complex. BIOCHEM SYST ECOL 2016. [DOI: 10.1016/j.bse.2016.01.006] [Citation(s) in RCA: 4] [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: 10/22/2022]
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Zhang FQ, Lei SY, Gao QB, Khan G, Xing R, Yang HL, Chen SL. Isolation of microsatellite loci for Rhodiola alsia (Crassulaceae), an important ethno-medicinal herb endemic to the Qinghai-Tibetan plateau. Genet Mol Res 2015; 14:5266-9. [PMID: 26125721 DOI: 10.4238/2015.may.18.18] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Rhodiola alsia, which has been used widely in traditional Chinese medicine for a considerable time, grows on moist habitats at high altitude near the snow line. Microsatellite loci were developed for R. alsia to investigate its population genetics. In total, 17 polymorphic microsatellites were developed based on ESTs from the Illumina HiSeq(TM) 2000 platform. The microsatellite loci were checked for variability using 80 individuals of R. alsia sampled from four locations on the Qinghai-Tibet Plateau. The total number of alleles per locus ranged from 10 to 20, and the observed heterozygosity ranged from 0.000 to 1.000. The null allele frequency ranged from 0.000 to 0.324. These microsatellites are expected to be helpful in future studies of population genetics in R. alsia and related species.
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Affiliation(s)
- F Q Zhang
- Key Laboratory of Eco-Environments of Three Gorges Reservoir Region, Ministry of Education, School of Life Sciences, Southwest University, Chongqing, China
| | - S Y Lei
- Key Laboratory of Adaptation and Evolution of Plateau Biota, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, China
| | - Q B Gao
- Key Laboratory of Adaptation and Evolution of Plateau Biota, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, China
| | - G Khan
- Key Laboratory of Adaptation and Evolution of Plateau Biota, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, China
| | - R Xing
- Key Laboratory of Adaptation and Evolution of Plateau Biota, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, China
| | - H L Yang
- Key Laboratory of Adaptation and Evolution of Plateau Biota, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, China
| | - S L Chen
- Key Laboratory of Adaptation and Evolution of Plateau Biota, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, China
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Sun SJ, Yu WQ, Zhang YL, Jiang XQ, Zhang FQ. Effects of TiO2 nanotube layers on RAW 264.7 macrophage behaviour and bone morphogenetic protein-2 expression. Cell Prolif 2014; 46:685-94. [PMID: 24460720 DOI: 10.1111/cpr.12072] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2013] [Accepted: 07/21/2013] [Indexed: 11/29/2022] Open
Abstract
OBJECTIVES To investigate behaviour and osteogenic cytokine expression of RAW264.7 macrophages grown on TiO2 nanotube layers. MATERIALS AND METHODS The murine macrophage cell line RAW 264.7 was cultured on TiO2 nanotubes of varying diameter; macrophage morphology was examined using scanning electron microscopy. Cell adhesion and viability were assessed with the aid of the MTT method and BMP-2 and TGF-β gene expression were examined by RT-PCR analysis. Levels of BMP-2, TGF-β1 and ICAM-1 proteins secreted into the supernatant were measured by ELISA assay. RESULTS Macrophages cultured on nanotube layers had spread out morphology, the largest (120 nm) nanotube layer eliciting an elongation by 24 h. Macrophages adhered significantly less to 120 nm TiO2 nanotubes than to control discs at 4 h after application; after 24 h incubation, macrophages were sufficiently viable (P < 0.05) on 30 and 70 nm nanotube layers. Increasing nanotube diameter led to increased BMP-2 protein secretion and increased BMP-2 mRNA expression. CONCLUSION These results demonstrate that nanoscale topography of TiO2 nanotube layers can affect macrophage morphology, adhesion, viability and BMP-2 expression. Macrophages grown on layers of large nanotubes had the highest potential to enhance bone formation during bone healing.
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Affiliation(s)
- S J Sun
- Department of Prosthodontics, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai Key Laboratory of Stomatology, Shanghai, 200011, China
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Dai MH, Liu SL, Chen NG, Zhang TP, You L, Q Zhang F, Chou TC, Szalay AA, Fong Y, Zhao YP. Oncolytic vaccinia virus in combination with radiation shows synergistic antitumor efficacy in pancreatic cancer. Cancer Lett 2013; 344:282-90. [PMID: 24321381 DOI: 10.1016/j.canlet.2013.11.007] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2013] [Revised: 11/06/2013] [Accepted: 11/11/2013] [Indexed: 10/25/2022]
Abstract
Combining oncolytic viruses with conventional therapy such as radiation is an innovative option for pancreatic cancer. We demonstrated that combination of GLV-1h151 and radiation yielded a synergistic cytotoxic effect, with the greatest effect achieved in the AsPC-1cell line. Combination treatment significantly increased apoptosis compared with either single treatment or the control group. In mice bearing human pancreatic tumor xenografts, combination treatment resulted in significantly enhanced inhibition of tumor growth. No evidence of toxicity was observed in mice. These results indicate that the combination of GLV-1h151 and radiation has great potential for translation into clinic practice.
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Affiliation(s)
- M H Dai
- Department of Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
| | - S L Liu
- Department of Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
| | - N G Chen
- Genelux Corporation, San Diego Science Center, San Diego, CA 92109, USA; Department of Radiation Medicine and Applied Sciences, Rebecca & John Moores Comprehensive Cancer Center, University of California, San Diego, CA 92093, USA
| | - T P Zhang
- Department of Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
| | - L You
- Department of Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
| | - F Q Zhang
- Department of Radiotherapy, Peking Union Medical College Hospital, Beijing 100730, China
| | - T C Chou
- Department of Preclinical Pharmacology, Memorial Sloan-Kettering Cancer Center, New York, NY 10065, USA
| | - A A Szalay
- Genelux Corporation, San Diego Science Center, San Diego, CA 92109, USA; Department of Radiation Medicine and Applied Sciences, Rebecca & John Moores Comprehensive Cancer Center, University of California, San Diego, CA 92093, USA; Department of Biochemistry, Rudolf Virchow Center for Experimental Biomedicine, Institute for Molecular Infection Biology, University of Wuerzburg, Wuerzburg, Germany
| | - Y Fong
- Department of Surgery, Memorial Sloan-Kettering Cancer Center, New York, NY 10065, USA.
| | - Y P Zhao
- Department of Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China.
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Wang XJ, Huang H, Yang F, Xia LG, Zhang WJ, Jiang XQ, Zhang FQ. Ectopic study of tissue-engineered bone complex with enamel matrix proteins, bone marrow stromal cells in porous calcium phosphate cement scaffolds, in nude mice. Cell Prolif 2011; 44:274-82. [PMID: 21535268 DOI: 10.1111/j.1365-2184.2011.00750.x] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
OBJECTIVE This study aimed to investigate the potential of enamel matrix proteins (EMPs) on promoting osteogenic differentiation of porcine bone marrow stromal cells (pBMSCs), as well as new bone formation capabilities, in a tissue-engineered bone complex scaffold of EMPs, pBMSCs and porous calcium phosphate cement (CPC). MATERIALS AND METHODS Effects of EMPs on pBMSCs in vitro was first determined by alkaline phosphatase (ALP) activity, von Kossa staining assay and mRNA expression of ALP, bone sialoprotein (BSP) and osteocalcin (OCN) genes. Next, an ectopic new bone formation test was performed in a nude mouse model with four groups: CPC scaffold alone; CPC scaffold + EMPs; CPC scaffold + pBMSCs; and CPC scaffold + EMPs + pBMSCs, for 2 or 4 weeks. RESULTS ALP activity, von Kossa assay and mRNA expressions of ALP, BSP and OCN genes were all significantly higher with 150 μg/ml EMP treatment in vitro. In nude mice, new bone formation was detected only in the CPC scaffold + EMPs + pBMSCs group at 2 weeks. At 4 weeks, in the tissue-engineered construct there was significantly higher bone formation ability than other groups. CONCLUSIONS EMPs promoted osteogenic differentiation of pBMSCs, and the tissue-engineered complex of EMPs, pBMSCs and CPC scaffold may be a valuable alternative to be used in periodontal bone tissue engineering and regeneration.
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Affiliation(s)
- X J Wang
- Department of Prosthodontics, Ninth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai Key Laboratory of Stomatology, Shanghai, China
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Abstract
OBJECTIVE Titanium oxide nanotube layers by anodization have excellent potential for dental implants because of good bone cell promotion. It is necessary to evaluate osteoblast behavior on different annealing temperature titania nanotubes for actual implant designs. MATERIALS AND METHODS Scanning Electron Microscopy, X-Ray polycrystalline Diffractometer (XRD), X-ray photoelectron Spectroscope, and Atomic Force Microscopy (AFM) were used to characterize the different annealing temperature titania nanotubes. Confocal laser scanning microscopy, MTT, and Alizarin Red-S staining were used to evaluate the MC3T3-E1 preosteoblast behavior on different annealing temperature nanotubes. RESULTS The tubular morphology was constant when annealed at 450°C and 550°C, but collapsed when annealed at 650°C. XRD exhibited the crystal form of nanotubes after formation (amorphous), after annealing at 450°C (anatase), and after annealing at 550°C (anatase/rutile). Annealing led to the complete loss of fluorine on nanotubes at 550°C. Average surface roughness of different annealing temperature nanotubes showed no difference by AFM analysis. The proliferation and mineralization of preostoblasts cultured on anatase or anatase/rutile nanotube layers were shown to be significantly higher than smooth, amorphous nanotube layers. CONCLUSION Annealing can change the crystal form and composition of nanotubes. The nanotubes after annealing can promote osteoblast proliferation and mineralization in vitro.
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Affiliation(s)
- W Q Yu
- Department of Prosthodontics, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai Key Laboratory of Stomatology, Shanghai, China
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Wei B, Zhang FQ, Yu Q. [MRI artifacts caused by keepers in a dental arch]. Shanghai Kou Qiang Yi Xue 2001; 10:316-8. [PMID: 14993960] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 04/29/2023]
Abstract
OBJECTIVE This research was designed to observe the degree of artifacts caused by 1-4 keepers. METHODS Samples were imaged in a living human subject by 0.15 Tesla MR devices in sagital plane. Results were analyzed and the maximal diameters of artifacts were measured. RESULTS The maximal diameters of the artifacts caused by 1-4 keepers were 101-109.6mm. CONCLUSION Even with four keepers in the dental arch, the degree of artifact is still limited.
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Affiliation(s)
- B Wei
- Department of Prosthodontics, Ninth People's Hospital, School of Stomatology, Shanghai Second Medical University, Shanghai 200011, China
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Dong HB, Zhang FQ. [Clinical study of masticatory efficiency of removable partial denture with SJ-1 type bolt attachment]. Shanghai Kou Qiang Yi Xue 2001; 10:100-1. [PMID: 14994027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 04/29/2023]
Abstract
OBJECTIVE Measurement and analysis of patients wearing dentures with SJ-1 type bolt attachments. METHODS Select sixteen patients with free end edentulous spaces, restore with removable dentures using SJ-1 type bolt attachments,measure the masticatory efficiency using light-absorption method,and compare them with those of normal occlusion and traditional removable partial dentures. RESULTS (1)One week after the dentures delivered,the average absorption value of these sixteen patients was 0.876,three weeks later 0.859,one month later 0.985. There was no significant difference among them. (2)Compared with those of normal occlusion, P>0.05,no significant difference;with those wearing traditional dentures, P<0.01,high significant difference. CONCLUSION The matiscatory efficiency of the patients wearing dentures with SJ-1 type bolt attachments was much better than those of tradition al removable partial dentures.
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Affiliation(s)
- H B Dong
- Department of Prosthetic Dentistry, School of Stomatology,Shanghai Second Medical University, Shanghai 200011, China
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40
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Zhang FQ, Cao HX. [Biocompatibility of JJ magnetic retainer metal materials]. Shanghai Kou Qiang Yi Xue 2001; 10:116-8. [PMID: 14994033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 04/29/2023]
Abstract
OBJECTIVE The purpose of this study was to evaluate the biocompatibility of new JJ-magnetic retainer metal materials. METHODS Preliminary biocompatible tests of the metal materials were performed depending on ISO 10.993-12 standard. They were cytotoxicity test, hemolysis test, acute systemic toxicity test, sensitization test and Ames test. RESULTS The cytotoxicity of the metal material was grade I. The hemolysis rate was 0.45%. There was no abnormal sensitization and irritation actions in the experimental group. The metal had no action of mutagenesis and carcinogenesis. CONCLUSION The JJ-magnetic retainer metal material showed excellent biocompatibility on the preliminary tests. It would be a good material in the way of biological safety.
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Affiliation(s)
- F Q Zhang
- Department of Prosthodontics,Ninth People's Hospital, Shanghai Second Medical University, Shanghai 200011,China
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41
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Zhang R, Li L, Yu LN, Bai RJ, Zhang FQ, Wang CT, Xu XY. [3D solid model of mandible with dental arch via LOM method]. Shanghai Kou Qiang Yi Xue 2000; 9:240-2. [PMID: 15014772] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 04/29/2023]
Abstract
OBJECTIVE Based on 3D reconstruction data from CT scanning, a solid model of mandible with dental arch is obtained via a rapid prototype machine using LOM method. METHODS 3D reconstruction data is transferred to STL file using software of Delcam(UK),which will be fed to Magics RP software for detection and rebuilding. Reproduction of the papery model of mandible with dental arch is then performed with highly geometric similarity. RESULTS The RP model of mandible with dental arch is obtained. CONCLUSION Accuracy of the reproduction model meets the demands of students in prosthetic dentistry,which gives the possibility of computer aided design of prosthetic dentistry based on 3D solid model.
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Affiliation(s)
- R Zhang
- Shanghai Jiao Tong University, Shanghai 200030, China
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Li L, Zhang R, Yu LN, Zhang FQ, Wang CT, Xu XY. [3D geometric simulation of mandible with dental arch from CT data]. Shanghai Kou Qiang Yi Xue 2000; 9:235-6. [PMID: 15014771] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 04/29/2023]
Abstract
OBJECTIVE A 3D geometric simulation of mandible with dental arch from CT has been obtained in this study. METHODS This process uses automatic system assisted with interactive action to get 2D contour data from CT images,then 3D wireframe model and solid model were obtained by using CAD/CAM software Pro-E(USA) and DELCAM(UK). RESULTS 3D solid model of mandible with dental arch were presented which can be fully edited. CONCLUSION This model can be applied to further educational and clinical researches such as RP,biomechanics simulation in prosthetic dentistry.The processes of simulation has wide applications in clinical practice of dentistry and dental education.
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Affiliation(s)
- L Li
- Department of Prosthetic Dentistry, Ninth People's Hospital, Shanghai Second University, Shanghai 200021 China
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Bonneau KR, Zhang NZ, Wilson WC, Zhu JB, Zhang FQ, Li ZH, Zhang KL, Xiao L, Xiang WB, MacLchlan NJ. Phylogenetic analysis of the S7 gene does not segregate Chinese strains of bluetongue virus into a single topotype. Arch Virol 2000; 145:1163-71. [PMID: 10948989 DOI: 10.1007/s007050070116] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Bluetongue virus (BTV) infection of ruminants is endemic throughout tropical and subtropical regions of the world. The S7 gene segments of prototype Chinese strains of BTV serotypes 1, 2, 3, 4, 12, 15, and 16 were sequenced and compared to the same genes of prototype strains of BTV from the US, Australia, and South Africa. The S7 genes and predicted VP7 proteins of the Chinese viruses were relatively conserved, with the notable exception of serotype 15. Furthermore, phylogenetic analysis of the S7 genes did not predict geographic origin of the various strains of BTV.
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Affiliation(s)
- K R Bonneau
- Department of Pathology, Microbiology, and Immunology, School of Veterinary Medicine, University of California, Davis 95616, USA
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Xu K, Zhang FQ, Xu H, Ling YH, An H, Hou MH, Sun WB. [Staining of complete denture: a preliminary clinical study]. Shanghai Kou Qiang Yi Xue 2000; 9:21-2. [PMID: 15014842] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 04/29/2023]
Abstract
OBJECTIVE:To study the relation between staining of complete denture and drinking tea, coffee and smoking, and to evaluate the result of denture cleaning agent on removing stain of complete denture.METHODS:A survey of 176 patients with complete dentures were carried out, which included the history of drinking tea, coffee and smoking, the use of denture-cleaning agent and the times of daily use. Statistical analysis was performed to determine the relationship between staining of denture and the above factors. RESULTS:The results showed (1)The longer the complete denture was weared, the more serious the staining. (2)Drinking tea and smoking were the main causes for denture staining. (3)Daily use of cleaning agent can effictively remove stain of denture. CONCLUSION:Change of life habit(drinking less tea and stop of smoking) and daily use of cleaning agent can reduce denture staining.
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Affiliation(s)
- K Xu
- Department of Prosthodontics, Ninth People's Hospital, Shanghai Second Medical University. Shanghai 200011, China
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Zhang FQ, Shu R, Yang CY. [A clinical study on prosthodontic treatment of periodontal problems with conical telescopic removable denture]. Shanghai Kou Qiang Yi Xue 1999; 8:204. [PMID: 15048210] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 04/29/2023]
Abstract
OBJECTIVE:Clinical study was made on curative effect of medium to severe periodontal diseases as well as those complicated with partial edentulism by conical telescopic removable denture.METHODS:14 cases of medium to severe periodontal diseases and these complicated with partial edentulism were treated with prosthodontic methods after comprehensive periodontal therapy.Examinations of both before and following prosthetic restoration of 3,12,14 months were made.Bacterial plague index,gingival index,tooth movability and masticatory efficiency were recorded,analysed and compared. RESULTS:Periodontal plague attachment was under effective control through this way,which also eliminated periodontal trauma thus preventing the relapse of periodontal diseases.Further more it can diminish tooth movability and improve masticatory efficiency continuously as time goes on.CONCLUSION:Conical telescopic removable denturs is an effective prosthetic method in treating medium to severe periodontal diseases.
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Affiliation(s)
- F Q Zhang
- Department of Prosthodontics, Ninth People's Hospital, Shanghai Second Medical University. Shanghai 200011,China
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Niu C, Yan H, Yu T, Sun HP, Liu JX, Li XS, Wu W, Zhang FQ, Chen Y, Zhou L, Li JM, Zeng XY, Yang RR, Yuan MM, Ren MY, Gu FY, Cao Q, Gu BW, Su XY, Chen GQ, Xiong SM, Zhang TD, Waxman S, Wang ZY, Chen Z, Hu J, Shen ZX, Chen SJ. Studies on treatment of acute promyelocytic leukemia with arsenic trioxide: remission induction, follow-up, and molecular monitoring in 11 newly diagnosed and 47 relapsed acute promyelocytic leukemia patients. Blood 1999; 94:3315-24. [PMID: 10552940] [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: 02/14/2023] Open
Abstract
Fifty-eight acute promyelocytic leukemia (APL) patients (11 newly diagnosed and 47 relapsed) were studied for arsenic trioxide (As2O3) treatment. Clinical complete remission (CR) was obtained in 8 of 11 (72.7%) newly diagnosed cases. However, As2O3 treatment resulted in hepatic toxicity in 7 cases including 2 deaths, in contrast to the mild liver dysfunction in one third of the relapsed patients. Forty of forty-seven (85.1%) relapsed patients achieved CR. Two of three nonresponders showed clonal evolution at relapse, with disappearance of t(15;17) and PML-RARalpha fusion gene in 1 and shift to a dominant AML-1-ETO population in another, suggesting a correlation between PML-RARalpha expression and therapeutic response. In a follow-up of 33 relapsed cases over 7 to 48 months, the estimated disease-free survival (DFS) rates for 1 and 2 years were 63.6% and 41.6%, respectively, and the actual median DFS was 17 months. Patients with white blood cell (WBC) count below 10 x 10(9)/L at relapse had better survival than those with WBC count over 10 x 10(9)/L (P =.038). The duration of As2O3-induced CR was related to postremission therapy, because there was only 2 of 11 relapses in patients treated with As2O3 combined with chemotherapy, compared with 12 of 18 relapses with As2O3 alone (P =.01). Reverse transcription polymerase chain reaction (RT-PCR) analysis in both newly diagnosed and relapsed groups showed long-term use of As2O3 could lead to a molecular remission in some patients. We thus recommend that ATRA be used as first choice for remission induction in newly diagnosed APL cases, whereas As2O3 can be either used as a rescue for relapsed cases or included into multidrug consolidation/maintenance clinical trials.
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Affiliation(s)
- C Niu
- Shanghai Institute of Hematology, Department of Hematology/Oncology, Rui Jin Hospital/Samuel Waxman Cancer Research Foundation Joint Center for Cancer Differentiation Therapy Sponsored by Reliance Group Holdings Inc, China
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Zhang FQ, Luo ZP, Gong ZH. Desipramine and fluoxetine antagonized 5,7-dihydroxytryptamine-induced lesion on rat hippocampal and cortical neurons. Zhongguo Yao Li Xue Bao 1999; 20:889-92. [PMID: 11270986] [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: 02/19/2023]
Abstract
AIM To assess the protective effect of desipramine (Des) and fluoxetine (Flu) on the neurons against the lesion induced by a selective serotonergic neurotoxin in vitro. METHODS The 10-day cultured primary neurons of hippocampus and cortex of rat was exposed to 5,7-dihydroxytryptamine (5,7-DHT) to determine the optimal lesion concentration and duration. Before exposing to 5,7-DHT, Des and Flu was added to the medium for 30 min to observe the protective effects. RESULTS The optimal concentration and duration for 5,7-DHT was 600 micromol.L-1 and 4 h, respectively. Both Des and Flu showed a protective effect in the dose range of 0.8 micromol.L-1 to 10 micromol.L-1 and 0.04 micromol.L-1 to 0.6 micromol.L-1, respectively, when the neurons were injured by 5,7-DHT 600 micromol.L-1 for 4 h. Flu showed a higher efficacy than Des. Both exhibited a more powerful protective effect on the hippocampal neuron than on the cortical neuron. CONCLUSION The antidepressant effect of Des and Flu was attributed to their protective effect on the injured serotonergic neuron of the hippocampus and the cortex.
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Affiliation(s)
- F Q Zhang
- Institute of Pharmacology and Toxicology, Academy of Military Medical Sciences, Beijing 100850, China
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Zhang FQ, Zheng YL. [Manufacture and application of the SJ-1 bolt attachment prosthesis]. Shanghai Kou Qiang Yi Xue 1999; 8:99-100. [PMID: 15048282] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 04/29/2023]
Abstract
OBJECTIVE:This study provided a method of manufacture and using for SJ-1 bolt attachment prostheses clinic application.METHODS:SJ-1 bolt attachment prostheses were applied to restorate 10 cases distal extension edentulous area.The patients had been observed for two years.RESULTS:Patients feel the bolt attachment RPDs comfortable,adaptive.CONCLUSION:This prosthesis was fine retention,masticator efficiency and aesthetics.
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Affiliation(s)
- F Q Zhang
- Department of Prosthodontics,School of Stomatology, Shanghai Second Medical University. Shanghai 200011,China
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Zheng YL, Chen L, Zhang FQ, Wang CT. [Effect of the abutments with reduced periodontal support on stress distribution of support tissue]. Shanghai Kou Qiang Yi Xue 1999; 8:104-6. [PMID: 15048284] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 04/29/2023]
Abstract
OBJECTIVE:This study applied finite element analysis (FEA) compared stress distribution characteristics of mandible,bilateral,SJ-1 bolt(extracoronal) distal extension attachment prostheses when the abutments were subject to eight different loss of periodontal support.METHODS:Finite element analysis.RESULTS:It was shown that periodontal support loss results in increased stress of the terminal abutment tooth without sudden changes.CONCLUSION:Compared favorable stress distribution result from splinted compromised abutment,and the first premolar periodontal support loss less than that of the second premolar and this loss below 30%.
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Affiliation(s)
- Y L Zheng
- Department of Prosthodontics,School of Stomatology, Shanghai Second Medical University. Shanghai 200011,China
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50
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Zheng YL, Chen L, Zhang FQ, Wang CT. [Effect of the number of splinted abutments on stress distribution of support tissue]. Shanghai Kou Qiang Yi Xue 1999; 8:101-3. [PMID: 15048283] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 04/29/2023]
Abstract
OBJECTIVE:This study applied an SJ-1 bolt attachment partial denture to restorate distal extension edentulous areas.Finite element analysis (FEA) was used to monitor induced around abutment supporting tissues under the different number of splinted abutments.METHODS:Finite element analysis. RESULTS:The result demonstrate that the reduction of the number of splinted unit from three to two resulted in an insignificant increase of stress records,whereas reduction of the number from two to one resulted in a significant increase of stress nine times greater than the three unit splint values.CONCLUSION:Hence,at least two teeth on each side should be splinted when SJ 1 bolt(extracoronal) distal extension attachment prostheses are used.
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Affiliation(s)
- Y L Zheng
- Department of Prosthodontics,School of Stomatology, Shanghai Second Medical University. Shanghai 200011,China
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