1
|
Yang X, Cheng Y, Hong XY, Guo YX, Wang X, Yang YY, Chu JP, Jin YP, Cheng YB, Zhang YC, Lu GP. [Survey on the application of external cardiopulmonary resuscitation in Chinese children with sudden cardiac arrest]. Zhonghua Er Ke Za Zhi 2023; 61:1018-1023. [PMID: 37899341 DOI: 10.3760/cma.j.cn112140-20230625-00419] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 10/31/2023]
Abstract
Objectives: To investigate the current application status and implementation difficulties of extracorporeal cardiopulmonary resuscitation (ECPR) in children with sudden cardiac arrest. Methods: This cross-sectional survey was conducted in 35 hospitals. A Children's ECPR Information Questionnaire on the implementation status of ECPR technology (abbreviated as the questionnaire) was designed, to collect the data of 385 children treated with ECPR in the 35 hospitals. The survey extracted the information about development of ECPR, the maintenance of extracorporeal membrane oxygenation (ECMO) machine, the indication of ECPR, and the difficulties of implementation in China. These ECPR patients were grouped based on their age, the hospital location and level, to compare the survival rates after weaning and discharge. The statistical analysis used Chi-square test and one-way analysis of variance for the comparison between the groups, LSD method for post hoc testing, and Bonferroni method for pairwise comparison. Results: Of the 385 ECPR cases, 224 were males and 161 females. There were 185 (48.1%) survival cases after weaning and 157 (40.8%) after discharge. There were 324 children (84.2%) receiving ECPR for cardiac disease and 27 children (7.0%) for respiratory failure. The primary cause of death in ECPR patients was circulatory failure (82 cases, 35.9%), followed by brain failure (80 cases, 35.0%). The most common place of ECPR was intensive care unit (ICU) (278 cases, 72.2%); ECPR catheters were mostly inserted through incision (327 cases, 84.9%). There were 32 hospitals (91.4%) had established ECMO emergency teams, holding 125 ECMO machines in total. ECMO machines mainly located in ICU (89 pieces, 71.2%), and the majority of hospitals (32 units, 91.4%) did not have pre-charged loops. There were no statistically significant differences in the post-withdrawal and post-discharge survival rates of ECPR patients among different age groups, regions, and hospitals (all P>0.05). The top 5 difficulties in implementing ECPR in non-ICU environments were lack of ECMO machines (16 times), difficulty in placing CPR pipes (15 times), long time intervals between CPR and ECMO transfer (13 times), lack of conventional backup ECMO loops (10 times), and inability of ECMO emergency teams to quickly arrive at the site (5 times). Conclusion: ECPR has been gradually developed in the field of pediatric critical care in China, and needs to be further standardized. ECPR in non-ICU environment remains a challenge.
Collapse
Affiliation(s)
- X Yang
- Department of Critical Care Medicine, Children's Hospital of Fudan University, Shanghai 201102, China
| | - Y Cheng
- Department of Critical Care Medicine, Children's Hospital of Fudan University, Shanghai 201102, China
| | - X Y Hong
- Department of Critical Care Medicine, Bayi Children's Hospital of Beijing Military General Hospital, Beijing 100010, China
| | - Y X Guo
- Pediatric Intensive Care Unit, Guangdong Provincial People's Hospital, Guangzhou 519041, China
| | - X Wang
- Department of Pediatric Surgery, Fuwai Hospital of Chinese Academy of Medical Sciences, Beijing 100037, China
| | - Y Y Yang
- Department of Cardiothoracic Surgery, Shanghai Children's Medical Center, Shanghai 200127, China
| | - J P Chu
- Department of Critical Care Medicine, Xi'an Children's Hospital, Xi'an 710002, China
| | - Y P Jin
- Pediatric Intensive Care Unit, Shandong Provincial Hospital, Jinan 250021, China
| | - Y B Cheng
- Department of Critical Care Medicine, Henan Children's Hospital, Zhengzhou 451161, China
| | - Y C Zhang
- Department of Critical Care Medicine, Children's Hospital of Shanghai,Shanghai 200062, China
| | - G P Lu
- Department of Critical Care Medicine, Children's Hospital of Fudan University, Shanghai 201102, China
| |
Collapse
|
2
|
Guo YX, An Q, Chen LL, Li TY, Chen D, Liang J, Wang L, Jiang W. Role and Modality of Combining Radiotherapy with Immunotherapy in Stage III-IV Unresectable Small Cell Lung Cancer. Int J Radiat Oncol Biol Phys 2023; 117:e22. [PMID: 37784898 DOI: 10.1016/j.ijrobp.2023.06.695] [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) The combination of radiotherapy and immunotherapy was rarely reported in the management of small cell lung cancer (SCLC). We retrospectively assessed the role and modality of this combination in Stage III-IV unresectable SCLC. MATERIALS/METHODS Patients with stage III and IV SCLC were enrolled according to AJCC 8th edition. Both efficacy and safety of immunotherapy combined with radiotherapy were evaluated. Thereinto, patients received first-line chemo-immunotherapy and sequential thoracic consolidation radiotherapy (TCRT) were further evaluated. Survival and descriptive analyses were performed. RESULTS Between January 1, 2019 and December 31, 2021, 51 patients were included in our analysis. Median follow-up was 28.0 months (95% CI 22.8-33.2). Patients received radiotherapy in treatment course had a prolonged 2-year overall survival (OS). And in the first-line immunotherapy cohort of 27 patients, the addition of TCRT significantly improved 2y-OS (72.22% vs. 13.89%, p = 0.0048), 2y-locoregional recurrence free survival (LRRFS) (90.00% vs 48.00%, p = 0.011), and 2y-distance progression free survival (DPFS) (66.67% vs. 16.67%, p = 0.039). Subgroup analyses showed that TCRT rendered superior outcomes regardless of brain metastases. Dose-escalation (45 Gy/15f) and earlier radiotherapy seemed to improve the benefit. Of 70.37% (19/27) patients experienced disease progression in the TCRT evaluation cohort, 63.16% (12/19) patients failed in brain. A tendency toward better OS and superior brain metastases free survival (BMFS) were observed after receiving prophylactic cranial irradiation (PCI). Finally, the most common grade 2 or higher toxic effects were pneumonitis in all patients (11.76% of immune-related vs. 7.84% of radiation related). CONCLUSION Earlier addition of TCRT to immunotherapy could significantly improve survival and extracranial control for stage IIIA-IVB unresectable SCLC patients, with no increased risk of adverse events. In the era of immunotherapy, PCI may still be a recommended strategy. Further investigation is warranted.
Collapse
Affiliation(s)
- Y X Guo
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital & Shenzhen Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Shenzhen, China
| | - Q An
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital & Shenzhen Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Shenzhen, China
| | - L L Chen
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital & Shenzhen Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Shenzhen, China
| | - T Y Li
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital & Shenzhen Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Shenzhen, China
| | - D Chen
- National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital & Shenzhen Hospital, Shenzhen, China
| | - J Liang
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital & Shenzhen Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Shenzhen, China, Shenzhen, China
| | - L 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, China, Beijing, China
| | - W Jiang
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital & Shenzhen Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Shenzhen, China, Shenzhen, China
| |
Collapse
|
3
|
Zhang XR, Meng HT, Shi JF, Wang N, Wang ZY, Zhang B, Zhu BF, Guo YX. Efficiency evaluation of common forensic genetic markers for parentage identification involving close relatives. Forensic Sci Int 2023; 345:111594. [PMID: 36871533 DOI: 10.1016/j.forsciint.2023.111594] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2022] [Revised: 01/29/2023] [Accepted: 02/01/2023] [Indexed: 02/05/2023]
Abstract
To explore the efficacy of commonly used forensic identification panels in complex paternity testing of trios that involved close relatives, we wrote a code by R to generate 10,000 pedigrees at 20 CODIS STR, 21 non-CODIS STR and 30 InDel loci in Chinese five ethnic groups based on their allele frequencies. Parentage identification index--cumulative paternity index (CPI) value was set as output and was further analyzed to evaluate the performance of the aforementioned panels in complex paternity testing when the alleged parent is a random individual, biological parent, grandparent, sibling of biological parent, half-sibling of biological parent, etc. The results showed that the false inclusion of parent sibling posed as parent demonstrated no statistically significant difference from that of grandparent posed as parent. The scenarios where both biological parent and alleged parent were consanguineous to the other parent were also simulated. The results revealed that the complexity of paternity testing would raise when biological parents were consanguineous and the alleged parent was a close relative of theirs. Despite the values of non-conformity number could vary in different genetic relationships, populations and panels, 20 CODIS STRs and 21 non-CODIS STRs performed satisfactorily in most simulated scenarios. However, the joint use of 20 CODIS STRs and 21 non-CODIS STRs is more recommendable when resolving the paternity testing of the incest mating case. Overall, the current study could be regarded as a worthwhile reference in complex paternity testing of trios that involved close relatives.
Collapse
Affiliation(s)
- X R Zhang
- Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, College of Stomatology, Xi'an Jiaotong University, Xi'an 710004, China; Clinical Research Center of Shaanxi Province for Dental and Maxillofacial Diseases, College of Stomatology, Xi'an Jiaotong University, Xi'an 710004, China; College of Forensic Medicine, Xi'an Jiaotong University Health Science Center, Xi'an 710004, China
| | - H T Meng
- Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, College of Stomatology, Xi'an Jiaotong University, Xi'an 710004, China; Clinical Research Center of Shaanxi Province for Dental and Maxillofacial Diseases, College of Stomatology, Xi'an Jiaotong University, Xi'an 710004, China
| | - J F Shi
- Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, College of Stomatology, Xi'an Jiaotong University, Xi'an 710004, China; Clinical Research Center of Shaanxi Province for Dental and Maxillofacial Diseases, College of Stomatology, Xi'an Jiaotong University, Xi'an 710004, China
| | - N Wang
- Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, College of Stomatology, Xi'an Jiaotong University, Xi'an 710004, China; Clinical Research Center of Shaanxi Province for Dental and Maxillofacial Diseases, College of Stomatology, Xi'an Jiaotong University, Xi'an 710004, China
| | - Z Y Wang
- Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, College of Stomatology, Xi'an Jiaotong University, Xi'an 710004, China; Clinical Research Center of Shaanxi Province for Dental and Maxillofacial Diseases, College of Stomatology, Xi'an Jiaotong University, Xi'an 710004, China
| | - B Zhang
- Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, College of Stomatology, Xi'an Jiaotong University, Xi'an 710004, China; Clinical Research Center of Shaanxi Province for Dental and Maxillofacial Diseases, College of Stomatology, Xi'an Jiaotong University, Xi'an 710004, China
| | - B F Zhu
- Multi-Omics Innovative Research Center of Forensic Identification, Department of Forensic Genetics, School of Forensic Medicine, Southern Medical University, Guangzhou 510515, China.
| | - Y X Guo
- Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, College of Stomatology, Xi'an Jiaotong University, Xi'an 710004, China; Clinical Research Center of Shaanxi Province for Dental and Maxillofacial Diseases, College of Stomatology, Xi'an Jiaotong University, Xi'an 710004, China.
| |
Collapse
|
4
|
Gao JD, Song H, Fu P, Guo YX, Zhang HY, Qiu M. Effects of etomidate on cell apoptosis during myocardial ischemia-reperfusion. J BIOL REG HOMEOS AG 2021; 35:10. [PMID: 34350750 DOI: 10.23812/21-si1-10] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- J D Gao
- Department of Pain, Yantaishan Hospital, Yantai, China
| | - H Song
- Emergency Department, Jinan Zhangqiu District Hospital of TCM, Jinan, China
| | - P Fu
- Department of Anesthesiology, Qingdao Fuwai Cardiovascular Hospital, Qingdao, China
| | - Y X Guo
- Department of Respiratory, Jinan Zhangqiu District People's Hospital, Jinan, China
| | - H Y Zhang
- Department of Pediatrics, Jinan Zhangqiu District People's Hospital, Jinan, China
| | - M Qiu
- Department of Anesthesiology, Jinan Municipal Hospital of Traditional Chinese Medicine, Jinan, China
| |
Collapse
|
5
|
Liu Q, Zhao JY, Liu HY, Li TT, Guo YX, Liu YH. Diagnostic value and correlation of miRNA-499 and miR-18A in patients with acute myocardial infarction. J BIOL REG HOMEOS AG 2021; 35:1059-1065. [PMID: 34013685 DOI: 10.23812/20-722-l] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Q Liu
- Department of Cardiovascular Medicine, People's Hospital of Rizhao Lanshan, Rizhao, China
| | - J Y Zhao
- Department of Cardiology, Jiyang People's Hospital, Jinan, China
| | - H Y Liu
- Disinfection Supply Center, Qingdao Central Hospital, Qingdao University, Qingdao, China
| | - T T Li
- Operation Room, Zhangqiu District People's Hospital, Jinan, China
| | - Y X Guo
- Department of Respiratory, Zhangqiu District People's Hospital, Jinan, China
| | - Y H Liu
- Department of Cardiology, Zhangqiu District People's Hospital, Jinan, China
| |
Collapse
|
6
|
Yang H, Zhao ZX, Guo YX, Xu B. First Report of White Rust Disease Caused by Albugo koreana on Camelina sativa in China. Plant Dis 2021; 105:2023. [PMID: 33496607 DOI: 10.1094/pdis-11-20-2332-pdn] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Camelina sativa, an herbaceous annual plant in the family Brassicaceae, is especially well known for its oilseed crop that produce camelina oil (Hovsepyan et al. 2008). In April 2016, white blister rust disease on C. sativa were observed in a cultivated farmland with an incidence of about 60% in Xinyuan County (43°33'39.17"N, 83°14'54.04"E), Xinjiang, China. Symptoms appeared as light-yellow chlorotic spots on the upper surface of the leaves and white blister on the corresponding lower surface. Blister sori were white, oval to ellipsoidal, scattered or coalesce, and 1.8 to 4 mm in diameter. Two representative voucher specimens were deposited in the Mycological Herbarium of Tarim University (HMUT 2527 and HMUT 2528), Aral, China. Sporangiophores hyaline, clavate or cylindrical, straight to slightly curved, (23.7 to) 27.9 to 37.9 (to 42.1) (av. 31) × (7.9 to) 9.6 to 13.7 (to 15.1) (av. 11.4) μm (n = 30), thick-walled on their lower parts, bearing sporangia in chains. Primary sporangia were globose to subglobose, wall equal thickness, and (9.5 to) 10.6 to 13.2 (to 14.3) (av. 11.9) μm in diameter (n = 50). Secondary sporangia were mostly subglobose to ovoid, with a subtruncated base, and (12.1 to) 13.2 to 16.9 (to 18) (av. 15.1) μm × (11 to) 12.1 to 15 (to 16.1) (av. 13.4) μm in size (n = 50). Oogonia were globose to subglobose, (39.7 to) 42.7 to 51.7 (to 54.1) (av. 48.3) μm in diameter (n = 30), irregular. Oospores were globose to subglobose, brown, (34.5 to) 37 to 42.7 (to 45.2) (av. 41.1) μm in diameter (n = 30), 3 to 5 μm wall in thickness, with single warts, 1.5 to 4 × 2 to 3.5 μm (n = 30). The morphological characteristics of specimens were consistent with those of Albugo koreana (Choi et al. 2007). To confirm the identification, genomic DNA were extracted directly from sori on diseased leaves from isolates HMUT 2527 and HMUT 2528, respectively. The internal transcribed spacer (ITS) rDNA and cytochrome oxidase II (cox2) mtDNA were amplified with primers DC6/LR-0 described by Choi et al. (2006) and cox2-F/cox2-R described by Hudspeth et al. (2000), respectively. A BLASTn search revealed that the ITS rDNA sequences (GenBank accession Nos. MW135444 and MW135445) were 99% (838/844 nucleotides)identical to that of A. koreana from Capsella bursa-pastoris (AY929829), and the cox2 sequences (GenBank accession Nos. MW147150 and MW147151) were 100% (567/567 nucleotides) identical to that of A. koreana from C. bursa-pastoris (AY927048). Based on the concatenated ITS and cox2 sequences, Maximum Likelihood and Bayesian analysis showed that pathogen from C. sativa with the reference isolate of A. koreana (ex C. bursa-pastoris) with high bootstrap support values and maximum posterior probability (100 ML BS and 1.00 BPP, respectively). For pathogenicity, sporangia collected from the infected leaves were suspended in sterile water at 4°C for 2 hours to improve zoospore release, and the zoospore suspension obtained from sporangial suspension (1×105 sporangia/ml) was inoculated to the lower surface of six healthy potted plants. Three non-inoculated plants were served as controls. Each plant was kept in a separate plastic humid chamber in a greenhouse with 25°C and 80% humidity for 15 days. Typical symptoms of white rust pustules developed on the inoculated plants were identical to that observed on the originally infected leaves. Control plants remained symptomless.. Based on morphological characteristics, molecular data, as well as pathogenicity tests, the pathogen on C. sativa was identified as Albugo koreana. A. koreana aslo is reported only on C. bursa-pastoris in Korea (Choi et al. 2007; Farr and Rossman 2020). To our knowledge, this is the first record of white rust disease caused by A. koreana on C. sativa, and the species is new to China. This report represents a new host plant association and a new geographical expansion for this species, presenting a potential threat to camelina production in northwest China.
Collapse
Affiliation(s)
- Hui Yang
- Tarim University, 12483, College of Life Sciences, Aral, Xinjiang, China;
| | - Zhen Xi Zhao
- Tarim University, 12483, College of Life Sciences, Aral, Xinjiang, China;
| | - Ya Xu Guo
- Tarim University, 12483, College of Life Sciences, Aral, Xinjiang, China;
| | - Biao Xu
- Tarim University, 12483, College of Life Sciences, Aral, Xinjiang, China;
| |
Collapse
|
7
|
Wang X, Zhu YJ, Jiang C, Guo YX, Ge XT, Chen HM, Ning JQ, Zheng CC, Peng Y, Li XH, Zhang ZY. InAs/GaAs quantum dot semiconductor saturable absorber for controllable dual-wavelength passively Q-switched fiber laser. Opt Express 2019; 27:20649-20658. [PMID: 31510154 DOI: 10.1364/oe.27.020649] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2019] [Accepted: 06/19/2019] [Indexed: 06/10/2023]
Abstract
We experimentally demonstrate the first use of 1550-nm InAs/GaAs quantum dot semiconductor saturable absorber mirror (QD-SESAM) in the dual-wavelength passively Q-switched (QS) erbium doped fiber (EDF) laser. The dual-wavelength QS lasing was obtained at a pump threshold of 180 mW with the average output power of 2.2 mW and the spacing between the two lasing wavelengths is 14 nm. A large absorption ranging from 1520 to 1590 nm has been realized when no substrate rotation was employed during the molecular beam epitaxy growth of the QD-SESAM indicating the potential to generate a 60 nm spacing of the dual-wavelength QS lasing peaks by changing the positions in the QD-SESAM and replacing EDF by co-doped fiber as gain medium. These results have provided a new opportunity towards achieving the stable and wide wavelength-tunable dual-modes fiber lasers.
Collapse
|
8
|
Yang R, Li QX, Mao C, Peng X, Wang Y, Guo YX, Guo CB. [Multimodal image fusion technology for diagnosis and treatment of the skull base-infratemporal tumors]. Beijing Da Xue Xue Bao Yi Xue Ban 2019; 51:53-58. [PMID: 30773544 DOI: 10.19723/j.issn.1671-167x.2019.01.010] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
OBJECTIVE To explore the value of incorporated multimodal image fusion technology with computer-aided design of the skull base-infratemporal tumor treatment. METHODS A retrospective study was carried out to enroll seventeen patients with skull base-infratemporal tumors treated at Peking University Hospital of Stomatology from February 2011 to September 2018. Plain CT, enhanced CT and MRI data were imported into the iPlan 3.0 software (BrainLab navigation system), and the image fusion was performed for each patient preoperatively. Then the three-dimensional images of the tumor, vital vessels and craniofacial bones were reconstructed to prepare virtual operation design. We evaluated the application of multimodal image fusion technology that had been incorporated with computer-aided planning during the navigation-guided biopsy or surgery, through the analysis of the biopsy and operation data and regular follow-up postoperatively. RESULTS The mean age of 17 patients (7 males and 10 females) was 46 years. Primary tumors occurred in 11 cases, and recurrent tumors in 6 cases. The size of the 17 tumors ranged from 2.9 cm to 9 cm, and the mean size was 4.35 cm. There were 7 cases with skull base bone destruction and/or intracranial extension, and 10 cases with tumors adjacent to the skull base. High-quality multimodal fused images were obtained in all the 17 cases. The spatial-position relationships of the tumors, adjacent craniomaxillofacial bones and vital vessels labeled with different colors were displayed well on the generated fusion images. The multimodal image fusion technology that incorporated with computer-aided three-dimensional reconstruction and then applied in navigation-guided biopsy or surgery showed that, preoperative analysis and virtual operation design functioned with good results, especially in cases with small tumor size, recurrence or illdefined borders in the skull base-infratemporal region. Operation was carried out in 16 cases after preoperative diagnosis and assessment, and 1 case was performed by navigation-guided biopsy only. The proportions of navigation-guided surgery and biopsy were 70.6% (12/17) and 17.6% (3/17) individually. The positive rate of pathologic diagnosis using navigation-guided biopsy was 100% (3/3). All the navigation-guided biopsies or operations were carried out successfully. Complications included 1 case of cerebrospinal fluid leak from a recurred meningioma patient postoperatively, and 1 case of facial paralysis resulting from parotid-gland deep lobe tumor. Most (14/15) tumors got complete removal with safe boundary through intra-operative navigation verification and post-operative imaging confirmation, except for one case of subtotal resection to avoid the injury of cavernous sinus. The pathological results of the tumors could be classified to mesenchymal (10), adenogenous (3), neurogenic (3) or epithelial (1) resources. The follow-up time ranged from 3 to 94 months, with the median follow-up time of 9 months. CONCLUSION Taking full advantages of individualized multimodal images, could help analyze the three-dimensional spatial position relationship of tumors, vital vessels and craniofacial bones properly, and then complete the virtual operation design well. The incorporated multimodal image fusion technology with navigation technology may improve the accuracy and safety of core needle biopsy and surgical treatment of skull base-infratemporal tumors.
Collapse
Affiliation(s)
- R Yang
- Department of Oral and Maxillofacial Surgery, Peking University School and Hospital 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
| | - Q X Li
- Department of Oral and Maxillofacial Surgery, Peking University School and Hospital 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
| | - C Mao
- Department of Oral and Maxillofacial Surgery, Peking University School and Hospital 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
| | - X Peng
- Department of Oral and Maxillofacial Surgery, Peking University School and Hospital 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 Wang
- Department of Oral and Maxillofacial Surgery, Peking University School and Hospital 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 X Guo
- Department of Oral and Maxillofacial Surgery, Peking University School and Hospital 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
| | - C B Guo
- Department of Oral and Maxillofacial Surgery, Peking University School and Hospital 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
| |
Collapse
|
9
|
Xu YJ, Tang XY, Yang M, Zhang SG, Liu MH, Guo YX, Lu MQ. [The therapeutic effects of interleukin 10 gene-modified bone marrow-derived dendritic cells in a murine model of liver fibrosis]. Zhonghua Nei Ke Za Zhi 2018; 57:835-840. [PMID: 30392240 DOI: 10.3760/cma.j.issn.0578-1426.2018.11.008] [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 therapeutic effects and mechanisms of interleukin-10 (IL-10) gene-modified dendritic cells (DC-IL-10) in mice with liver fibrosis. Methods: DC-IL-10 was constructed in vitro, the phenotype and function of which were evaluated by flow cytometry. BALB/c mice were treated with intraperitoneal injection of carbon tetrachloride (CCl4) to establish liver fibrotic model. DC-IL-10 was administrated via tail vein. Animals were divided into 4 groups including normal dendritic cell(DC) control, liver fibrosis only, negative lentiviral transfection DC (DC-mock) and DC-IL-10. Liver function, cytokine secretion, T lymphocyte differentiation and liver histomorphology were tested. Real-time PCR and western blot were used to analyze the effect of DC-IL-10 on Wnt/β-catenin signaling pathway and its role in liver fibrosis. Results: When compared with DC control and DC-mock, the expression of DC-IL-10 surface stimulating molecules (major histocompatibity complex-Ⅱ, CD(80), CD(86)) were significantly decreased (F=14.708, 22.503, 12.595, respectively, all P<0.05), and DC-IL-10 significantly inhibited T lymphocyte proliferation (F=50.295, P<0.05). When compared with liver fibrosis group, serum alanine aminotransferase and aspartate transaminase were decreased in DC-IL-10 treated group (all P<0.05), other parameters including inflammatory factors (tumor necrosis factor α, IL-6, IL-1β) reduced (all P <0.05), the proportion of regulatory T cells (Treg) increased (F=6.742, P<0.05), pathological damage improved, the expression of Wnt3a, α-SMA and β-catenin mRNA and protein significantly reduced in DC-IL-10 treatment group (all P<0.001) . Conclusions: DC-IL-10 induces elevation of Treg for immune tolerance, as well as inhibition of inflammatory response, block of Wnt/β-catenin signaling pathway, which translates into improvement of liver fibrosis.
Collapse
Affiliation(s)
| | | | | | | | | | | | - M Q Lu
- Department of Infectious Diseases, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China
| |
Collapse
|
10
|
Zhang WY, Xuan B, Guo YX, Zhang J. [Changes of distal-less homeobox genes 5 and Msh homeobox 1 in a rat model of bisphosphonate related osteonecrosis of the jaw]. Zhonghua Kou Qiang Yi Xue Za Zhi 2018; 53:466-469. [PMID: 29996364 DOI: 10.3760/cma.j.issn.1002-0098.2018.07.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To further study the effects of distal-less homeobox gene 5 (Dlx-5) and Msh homeobox 1 (Msx-1) in the pathogenic mechanism of bisphosphonate related osteonecrosis of the jaw (BRONJ) . Methods: Twenty-four SD rats were divided into two groups, the experimental group was injected intraperitoneally with zoledronic acid for 12 weeks (0.2 mg/kg, three times a week), and the control group was injected with saline solution for 12 weeks. The first mandibular molars were extracted after 12 weeks. All of the animals were sacrificed eight weeks after teeth extraction. The BRONJ was diagnosed by gross observation, X-ray examination and histopathlolgical examination. Through real-time PCR, the expression level of Dlx-5 and Msx-1 were detected in the mandible of BRONJ samples and normal samples. Results: X-ray examination and histopathlolgical analysis showed the presence of BRONJ. The results of real-time PCR showed that the expression levels of Dlx-5 were increased (P=0.001) and the expression level of Msx-1 was decreased (P=0.001) in the experimental group compared with the control group. Conclusions: Dlx-5 and Msx-1 genes play roles in the pathogenic mechanism of BRONJ.
Collapse
Affiliation(s)
- W Y Zhang
- Department of Prosthodontics, Stomatological Hospital, Tianjin Medical University, Tianjin 300070, China
| | - B Xuan
- Department of Prosthodontics, Stomatological Hospital, Tianjin Medical University, Tianjin 300070, China (Present address: Department of Stomatology, Aerospace Central Hospital, Beijing 100039, China)
| | - Y X Guo
- Department of Prosthodontics, Stomatological Hospital, Tianjin Medical University, Tianjin 300070, China (Present address: Department of Oral and Maxillofaxial Surgery, School of Stomatology, The Fourth Military Medical University & State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Clinical Research Center for Oral Disease, Xi'an 710032, China)
| | - J Zhang
- Department of Oral and Maxillofaxial Surgery, Stomatological Hospital, Tianjin Medical University, Tianjin 300070, China
| |
Collapse
|
11
|
Nie HT, Guo YX, Yao XL, Ma TW, Deng KP, Wang Z, Zhang GM, Sun LW, Wang ZY, Wang HC, Wang F. Acute nutrient treatment causes alterations in intra-follicular antioxidation and AKT signaling. Reproduction 2018; 155:37-49. [DOI: 10.1530/rep-17-0446] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2017] [Revised: 10/12/2017] [Accepted: 10/23/2017] [Indexed: 11/08/2022]
Abstract
This study aimed to determine if short-term nutrient alteration affects (1) ovarian morphology, (2) plasma and ovarian antioxidant capability and (3) cell apoptosis and AKT signaling within the ovary. After estrus synchronization, 24 Hu sheep were assigned to three groups based on the nutrient requirement recommended for maintenance (M): 1 × M (Control), 1.5 × M (S) and 0.5 × M (R) during days 7–14 of their estrous cycle. The results indicated that undernourishment significantly increased the counts and volume of follicles <2.5 mm and decreased the counts and volume of follicles ≥2.5 mm (P < 0.05). Feed restriction altered the plasma and follicular redox balance within follicles ≥2.5 mm by inhibiting total antioxidant capacity, increasing malondialdehyde concentration (P < 0.05) and reducing the mRNA expression levels of superoxide dismutase 2 (SOD2) and glutathione peroxidase (GSH-PX), as well as the activities of total SOD and GSH-PX. Feed restriction also attenuated B-cell lymphoma-2 (BCL2) but enhanced Bcl-2-associated X protein (BAX) andBAX/BCL2transcription and translation levels in granulosa cells (P < 0.05). Uniform staining intensities of AKT and P-AKT-Ser473 were observed in each follicle stage, whereas weaker P-AKT-Thr308 staining in the antral follicle than in the pre-antral follicle suggested possible involvement of P-AKT-Thr308 during the beginning of follicle development. P-AKT-Ser473 levels in follicles ≥2.5 mm was significantly reduced in the R group (P < 0.05). The results presented in this study demonstrate that suppressed folliculogenesis caused by feed restriction might be associated with attenuated AKT signaling, reduced follicular antioxidant capacity and enhanced granulosa cells apoptosis.
Collapse
|
12
|
Meng PQ, Guo YX. [Bilateral maxillary bisphosphonate-related osteonecrosis of the jaw: a case report]. Beijing Da Xue Xue Bao Yi Xue Ban 2017; 49:1098-1102. [PMID: 29263490] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Bisphosphonate-related osteonecrosis of the jaw (BRONJ), as one serious side-effect of bisphosphonate therapy, has been known for more than ten years since it was first reported in 2003. In the majority of the cases, BRONJ occurs more commonly in the mandible. Those involving the maxilla are relatively few. This paper reported a case that a patient with multiple myeloma developed bilateral maxillary BRONJ after tooth extraction. The patient had used bisphosphonates for more than three years, meanwhile with uncontrolled diabetes mellitus. The patient recovered completely after surgical treatment, in combination with diabetes disease control and antibiotics application. Two key factors to ensure the success of surgical treatment are as follows: sufficient removal of infected and necrotic tissue, and good blood-supply for the local flap to help completely close the wound. The literature was reviewed to analyze the reasons why bone necrosis related to bisphosphonates was most likely to occur in the jaw, especially in the mandible, according to the pathogenesis of this disease. Furthermore, the related risk factors of BRONJ presented in this case were discussed, such as tooth extraction, oral infection and diabetes mellitus, etc. We summarized adjuvant prophylaxes for prevention of BRONJ after tooth extraction, for example, drug holiday that could be used in the dental clinic. This case report reminds us that it's of great importance to establish the awareness that the osteonecrosis of the jaw may be related to the use of some bone-stabilizers. As for patients with a history of exposure to antiresorptive or antiangiogenic agents, dentists are supposed to be cautious. It's recommended to take appropriate measures in perioperative period of oral surgical treatment to prevent BRONJ.
Collapse
Affiliation(s)
- P Q Meng
- Oral and Maxillofacial Surgery, Peking University School and Hospital of Stomatology & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
| | - Y X Guo
- Oral and Maxillofacial Surgery, Peking University School and Hospital of Stomatology & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
| |
Collapse
|
13
|
Jin XY, Wei YY, He YF, Guo YX, Mei T, Meng HT, Zhang YD, Kong TT, Zhu BF. [Genetic Polymorphisms of 30 InDel Loci in Ewenki Ethnic Group from Inner Mongolia]. Fa Yi Xue Za Zhi 2017; 33:271-276. [PMID: 29230993 DOI: 10.3969/j.issn.1004-5619.2017.03.012] [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] [Received: 08/13/2016] [Indexed: 11/18/2022]
Abstract
OBJECTIVES To study the genetic polymorphisms of 30 insertion/deletion (InDel) loci and evaluate their forensic application in Ewenki ethnic group from Inner Mongolia. METHODS Peripheral blood samples were collected from 87 unrelated healthy individuals in Ewenki ethnic group. Genomic DNA were extracted, and 30 InDel loci of the samples were multiplex amplified and genotyped. Hardy-Weinberg balance tests were preformed for all loci and genetic parameters were calculated by modified PowerStats v1.2 software. The linkage disequilibrium between loci were tested by SNPAnalyzer v2.0 software. Based on the allele frequencies of 30 InDel loci, the genetic relationships between Ewenki ethnic group and other populations were evaluated by analysis of molecular variance, principal component analysis and phylogenetic reconstruction. RESULTS After correction, 30 InDel loci conformed to Hardy-Weinberg equilibrium. It was found that the pairwise InDel loci were in linkage equilibrium after Bonferroni correction. The results of population genetics indicated that Ewenki ethnic group had close genetic relationships with Henan Han and Beijing Han populations; whereas it was significantly different from several populations in Europe and Mexico. CONCLUSIONS There are relatively high genetic polymorphisms on 30 InDel loci of Ewenki ethnic group from Inner Mongolia, which can be used as a helpful supplement application for STR detection system.
Collapse
Affiliation(s)
- X Y Jin
- Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, College of Stomatology, Xi'an Jiaotong University, Xi'an 710004, China.,Clinical Research Center of Shaanxi Province for Dental and Maxillofacial Diseases, College of Stomatology, Xi'an Jiaotong University, Xi'an 710004, China.,Research Center of Stomatology, Stomatological Hospital, Xi'an Jiaotong University, Xi'an 710004, China
| | - Y Y Wei
- Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, College of Stomatology, Xi'an Jiaotong University, Xi'an 710004, China.,Clinical Research Center of Shaanxi Province for Dental and Maxillofacial Diseases, College of Stomatology, Xi'an Jiaotong University, Xi'an 710004, China.,Research Center of Stomatology, Stomatological Hospital, Xi'an Jiaotong University, Xi'an 710004, China
| | - Y F He
- Department of Criminal Investigation, Shaanxi Provincial Public Security Bureau, Xi'an 710016, China
| | - Y X Guo
- Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, College of Stomatology, Xi'an Jiaotong University, Xi'an 710004, China.,Clinical Research Center of Shaanxi Province for Dental and Maxillofacial Diseases, College of Stomatology, Xi'an Jiaotong University, Xi'an 710004, China.,Research Center of Stomatology, Stomatological Hospital, Xi'an Jiaotong University, Xi'an 710004, China
| | - T Mei
- Department of Biochemistry, Preclinical Medicine College, Xinjiang Medical University, Urumqi 830011, China
| | - H T Meng
- Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, College of Stomatology, Xi'an Jiaotong University, Xi'an 710004, China.,Clinical Research Center of Shaanxi Province for Dental and Maxillofacial Diseases, College of Stomatology, Xi'an Jiaotong University, Xi'an 710004, China.,Research Center of Stomatology, Stomatological Hospital, Xi'an Jiaotong University, Xi'an 710004, China
| | - Y D Zhang
- Institute of Forensic Science of Anhui Public Security Department, Hefei 230061, China
| | - T T Kong
- Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, College of Stomatology, Xi'an Jiaotong University, Xi'an 710004, China.,Clinical Research Center of Shaanxi Province for Dental and Maxillofacial Diseases, College of Stomatology, Xi'an Jiaotong University, Xi'an 710004, China.,Research Center of Stomatology, Stomatological Hospital, Xi'an Jiaotong University, Xi'an 710004, China
| | - B F Zhu
- Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, College of Stomatology, Xi'an Jiaotong University, Xi'an 710004, China.,Clinical Research Center of Shaanxi Province for Dental and Maxillofacial Diseases, College of Stomatology, Xi'an Jiaotong University, Xi'an 710004, China.,Research Center of Stomatology, Stomatological Hospital, Xi'an Jiaotong University, Xi'an 710004, China
| |
Collapse
|
14
|
Deng KP, Fan YX, Ma TW, Wang Z, TanTai WJ, Nie HT, Guo YX, Yu XQ, Sun LW, Wang F. Carcass traits, meat quality, antioxidant status and antioxidant gene expression in muscle and liver of Hu lambs fed perilla seed. J Anim Physiol Anim Nutr (Berl) 2017; 102:e828-e837. [PMID: 29119654 DOI: 10.1111/jpn.12841] [Citation(s) in RCA: 21] [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: 03/02/2017] [Accepted: 10/19/2017] [Indexed: 11/29/2022]
Abstract
The effects of perilla (Perilla frutescens L.) seed on carcass traits, meat quality, antioxidant status and antioxidant gene expression in the liver and muscle of Hu lambs were investigated in this study. Sixty Hu lambs (23.02 ± 1.36 kg) were randomly divided into four experimental groups receiving diets containing 0%, 5%, 10% or 15% perilla seed (CD, 5%PFSD, 10%PFSD and 15%PFSD, respectively). The addition of perilla seed had no significant impacts on carcass traits (p > .05). There were no differences in pH, meat colour, drip loss, cooking loss or shear force among the four treatments (p > .05). Addition of perilla seed increased (p < .05) deposition of intramuscular lipids but had no effect on other chemical components in the longissimus dorsi (LD) (p > .05). The 15%PFSD diet decreased the total antioxidant capacity (T-AOC) and malondialdehyde (MDA) content in the liver (p < .05 for both) but increased the activity of these antioxidant enzymes in LD (p < .05 for both). Compared to CD, addition of perilla seed increased superoxide dismutase (SOD) and glutathione peroxidase (GPX) expression in the liver and LD (p < .05 for all). These results indicate that perilla seed supplementation in lambs' diets can increase deposition of intramuscular lipids and improve muscular oxidative status and meat quality.
Collapse
Affiliation(s)
- K P Deng
- Jiangsu Engineering Technology Research Center of Meat Sheep & Goat Industry, Nanjing Agricultural University, Nanjing, China
| | - Y X Fan
- Jiangsu Engineering Technology Research Center of Meat Sheep & Goat Industry, Nanjing Agricultural University, Nanjing, China
| | - T W Ma
- Jiangsu Engineering Technology Research Center of Meat Sheep & Goat Industry, Nanjing Agricultural University, Nanjing, China
| | - Z Wang
- Jiangsu Engineering Technology Research Center of Meat Sheep & Goat Industry, Nanjing Agricultural University, Nanjing, China
| | - W J TanTai
- Jiangsu Engineering Technology Research Center of Meat Sheep & Goat Industry, Nanjing Agricultural University, Nanjing, China
| | - H T Nie
- Jiangsu Engineering Technology Research Center of Meat Sheep & Goat Industry, Nanjing Agricultural University, Nanjing, China
| | - Y X Guo
- Jiangsu Engineering Technology Research Center of Meat Sheep & Goat Industry, Nanjing Agricultural University, Nanjing, China
| | - X Q Yu
- Jiangsu Engineering Technology Research Center of Meat Sheep & Goat Industry, Nanjing Agricultural University, Nanjing, China
| | - L W Sun
- Jiangsu Engineering Technology Research Center of Meat Sheep & Goat Industry, Nanjing Agricultural University, Nanjing, China
| | - F Wang
- Jiangsu Engineering Technology Research Center of Meat Sheep & Goat Industry, Nanjing Agricultural University, Nanjing, China
| |
Collapse
|
15
|
Guo YX, Xu YH, Zheng GH, Jin XQ. The novel gene HA117 promotes in vitro and in vivo drug resistance in mouse colon tumor cells. Cancer Gene Ther 2017; 24:304-308. [DOI: 10.1038/cgt.2017.28] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2017] [Revised: 06/02/2017] [Accepted: 06/13/2017] [Indexed: 01/14/2023]
|
16
|
Meng JH, Guo YX, Luo HY, Guo CB, Ma XC. [Diagnosis and treatment of diffuse tenosynovial giant cell tumor arising from temporomandibular joints]. Beijing Da Xue Xue Bao Yi Xue Ban 2016; 48:1049-1054. [PMID: 27987512] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
OBJECTIVE To retrospectively analyze the clinical features, treatment and prognosis to the diffuse tenosynovial giant cell tumor (D-TSGCT) arising from the temporomandibular joint (TMJ), and to give a reference for the early diagnosis and treatment of this disease. METHODS In this study, 15 patients finally diagnosed as D-TSGCT of TMJ histopathologically at the Peking University Hospital of Stomatology from October 2003 to August 2015 were selected and reviewed. Their clinical manifestations, imaging and histological features, diagnoses and differential diagnoses, treatments and follow-ups were summarized and discussed. RESULTS D-TSGCT of TMJ showed obvious female predominance (12/15), the main symptoms included painful preauricular swelling or mass, limited mouth-opening and mandibular deviation with movement. D-TSGCT on computed tomography (CT) scan often showed ill-defined soft tissue masses around TMJ, enhancement after contrast administration, usually with widening of the joint spaces and with bone destruction of the condyle, the fossa and even the skull base. On magnetic resonance images (MRI), the majority of lesions on T1 weighted images and T2 weighted images both showed the characteristics of low signals (6/11). The lesions could extend beyond the joints (9/11) and into the infratemporal fossa (4/11) and the middle cranial fossa (4/11). Surgical resection was performed in 14 cases and biopsy in 1 case. Postoperative radiotherapy was performed in 3 cases. In follow-ups, 3 cases showed recurrence postoperatively. CONCLUSION D-TSGCT arising from TMJ should be differentiated with TMJ disorders, other tumors and tumor-like lesions of TMJ and parotid neoplasms, etc. CT and MRI examinations have important values in the diagnosis and treatment design of D-TSGCT. Because of the local aggressive and extensive behavior, complete resection should be performed as soon as possible. Postoperative radiotherapy was helpful for the extensive lesions including destruction of skull base and may be a good supplementary therapy. Because of the possibility of recurrence and malignancy, long-term follow-up was suggested.
Collapse
Affiliation(s)
- J H Meng
- Department of Oral and Maxillofacial Surgery, Peking University School and Hospital of Stomatology & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
| | - Y X Guo
- Department of Oral and Maxillofacial Surgery, Peking University School and Hospital of Stomatology & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
| | - H Y Luo
- Department of Oral Pathology, Peking University School and Hospital of Stomatology & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
| | - C B Guo
- Department of Oral and Maxillofacial Surgery, Peking University School and Hospital of Stomatology & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
| | - X C Ma
- Center for Temporomandibular Joint Disorder and Orofacial Pain, Peking University School and Hospital of Stomatology & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
| |
Collapse
|
17
|
Zhao GH, Fang YQ, Ryan U, Guo YX, Wu F, Du SZ, Chen DK, Lin Q. Dynamics of Th17 associating cytokines in Cryptosporidium parvum-infected mice. Parasitol Res 2015; 115:879-87. [PMID: 26593737 DOI: 10.1007/s00436-015-4831-2] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2015] [Accepted: 11/10/2015] [Indexed: 12/20/2022]
Abstract
Cryptosporidium parvum commonly inhabits the intestinal tract of animals and humans and can cause acute watery diarrhea and weight loss. However, host immune responses to Cryptosporidium infections are not fully understood. IL-17 (also called IL-17A) is a pro-inflammatory cytokine of Th17 cells that plays a role in the host response to Cryptosporidium baileyi infection. The present study examined levels of IL-17-specific messenger RNA (mRNA) and Th17 associating cytokines in C. parvum-infected immune-suppressed BALB/c mice using real-time quantitative PCR (qPCR). Levels of IL-17 protein were determined by ELISA. The results showed that levels of IL-17 mRNA and Th17 cell-related cytokines, namely TGF-β, IL-6, STAT-3, RORγt, IL-22, TNF-α, and IL-23, were significantly increased (P < 0.05) in gut-associated lymphoid tissue (GALT) and spleen. IL-17 protein levels in GALT were also significantly increased (P < 0.05) after infection. The present study suggested that Th17 cells play a role in host-C. parvum interaction. These results could inform future studies of the immune response against C. parvum infection in transient immunosuppressed populations.
Collapse
Affiliation(s)
- G H Zhao
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi Province, 712100, People's Republic of China
| | - Y Q Fang
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi Province, 712100, People's Republic of China
| | - U Ryan
- School of Veterinary and Life Sciences, Murdoch University, Murdoch, WA, 6150, Australia
| | - Y X Guo
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi Province, 712100, People's Republic of China
| | - F Wu
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi Province, 712100, People's Republic of China
| | - S Z Du
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi Province, 712100, People's Republic of China
| | - D K Chen
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi Province, 712100, People's Republic of China.
| | - Q Lin
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi Province, 712100, People's Republic of China.
| |
Collapse
|
18
|
Guo YX, Sun ZP, Liu XJ, Bhandari K, Guo CB. Surgical safety distances in the infratemporal fossa: three-dimensional measurement study. Int J Oral Maxillofac Surg 2014; 44:555-61. [PMID: 25441861 DOI: 10.1016/j.ijom.2014.06.004] [Citation(s) in RCA: 5] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2013] [Revised: 04/29/2014] [Accepted: 06/09/2014] [Indexed: 10/24/2022]
Abstract
The wedge-shaped infratemporal fossa is a constricted space and has long been a surgical challenge, mainly due to difficulties in access. Three-dimensional (3D) reconstruction of the skull, internal carotid artery (ICA), and internal jugular vein (IJV) was carried out using enhanced computed tomography (CT) data, to measure the safety distances in relation to infratemporal fossa surgery. Fifty enhanced CT datasets were selected to reconstruct 3D images by segmentation technique. The anatomical routes of the ICA, IJV, and the styloid process (SP) were observed. The following were measured: SP length, height of the pterygoid plates (PP height), distances from the pterygoid process (antero-inferior and anterosuperior border) to the leading edge of the ICA (PP-ICA (inferior), PP-ICA (superior)), and distance between the most prominent point of the zygomatic arch and the medial pterygoid plate (Zyg-MPP). The mean measurements of SP length, PP height, and the distances PP-ICA (inferior), PP-ICA (superior), and Zyg-MPP were 30.64 mm, 26.61 mm, 31.16 mm, 34.37 mm, and 51.37 mm, respectively. No significant differences were observed by age group, except the distance of PP-ICA (inferior) on the left side. In centres without intraoperative navigation facilities, proper knowledge of the anatomy, particularly of bony landmarks and the safe distances to nearby neurovascular structures, can provide useful information to ensure safe operations.
Collapse
Affiliation(s)
- Y X Guo
- Department of Oral and Maxillofacial Surgery, Peking University School and Hospital of Stomatology, Beijing, China
| | - Z P Sun
- Department of Oral and Maxillofacial Radiology, Peking University School and Hospital of Stomatology, Beijing, China
| | - X J Liu
- Department of Oral and Maxillofacial Surgery, Peking University School and Hospital of Stomatology, Beijing, China
| | - K Bhandari
- Chitwan Medical College, Bharatpur, Chitwan, Nepal
| | - C B Guo
- Department of Oral and Maxillofacial Surgery, Peking University School and Hospital of Stomatology, Beijing, China.
| |
Collapse
|
19
|
Qi MZ, Fang YQ, Wang XT, Zhang LX, Wang RJ, Du SZ, Guo YX, Jia YQ, Yao L, Liu QD, Zhao GH. Molecular characterization of Cryptosporidium spp. in pre-weaned calves in Shaanxi Province, north-western China. J Med Microbiol 2014; 64:111-116. [PMID: 25385243 DOI: 10.1099/jmm.0.079327-0] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Cryptosporidium, a worldwide protozoan parasite, is one of the most common causes of diarrhoea in humans and animals. The aim of the present study was to determine Cryptosporidium species/genotypes in pre-weaned calves in Shaanxi Province using PCR and sequencing based on the small subunit rRNA gene. A total of 258 faecal samples were collected from pre-weaned calves in 19 different farms from six areas in Shaanxi Province, north-western China. Cryptosporidium infection was detected in 14 of 19 farms (73.7 %), with a total prevalence of 20.2 % (52/258). Both dairy and Qinchuan (beef) cattle were found with Cryptosporidium infection. Three Cryptosporidium species, namely Cryptosporidium bovis (n = 26), Cryptosporidium andersoni (n = 14) and Cryptosporidium ryanae (n = 12), were detected in pre-weaned calves in Shaanxi Province, with C. bovis (in 12 farms) identified as the most common species on cattle farms. Two additional and previously unknown C. ryanae genotypes, CRTypes III and IV, were observed in the present study. However, the zoonotic species, Cryptosporidium parvum, was not detected in this study, which suggested a low zoonotic potential in Cryptosporidium-infected pre-weaned calves in this province.
Collapse
Affiliation(s)
- M Z Qi
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi Province 712100, PR China
| | - Y Q Fang
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi Province 712100, PR China
| | - X T Wang
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi Province 712100, PR China
| | - L X Zhang
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou, Henan Province 450002, PR China
| | - R J Wang
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou, Henan Province 450002, PR China
| | - S Z Du
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi Province 712100, PR China
| | - Y X Guo
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi Province 712100, PR China
| | - Y Q Jia
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi Province 712100, PR China
| | - L Yao
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi Province 712100, PR China
| | - Q D Liu
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi Province 712100, PR China
| | - G H Zhao
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi Province 712100, PR China
| |
Collapse
|
20
|
Zhao ZW, Pan DD, Wu Z, Sun YY, Guo YX, Zeng XQ. Antialcoholic liver activity of whey fermented by Lactobacillus casei isolated from koumiss. J Dairy Sci 2014; 97:4062-71. [PMID: 24767886 DOI: 10.3168/jds.2014-7954] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2014] [Accepted: 03/09/2014] [Indexed: 11/19/2022]
Abstract
Whey fermented liquid (WFL) was studied for its hepatoprotective effects by using chronic alcohol-induced mice. Whey fermented liquid, prepared by inoculating whey with 4% (vol/vol) Lactobacillus casei and then incubating at 41°C for 8h, was used to orally treat alcohol-induced mice at 3 dosages for 5 wk. Ethanol consumption significantly reduced the activity of superoxide dismutase and glutathione peroxidase, while lowering glutathione content and increasing levels of aspartate aminotransferase, alanine aminotransferase, total triglyceride, malondialdehyde, and cytochrome P450 2E1. Treatment with WFL significantly attenuated the increased levels of alanine aminotransferase, aspartate aminotransferase, triglyceride, and cytochrome P450 2E1, while decreasing superoxide dismutase, glutathione peroxidase, malondialdehyde, and glutathione levels. Pathological changes in the livers of mice who had ingested alcohol were improved by the administration of WFL. These results suggest that WFL may exert a protective effect against alcoholic liver disease by increasing antioxidant activity, which supports the use of WFL as an antialcoholic liver disease treatment.
Collapse
Affiliation(s)
- Z W Zhao
- Food Science and Technology Department of the Marine Science School, Ningbo University, Ningbo 315211, P. R. China
| | - D D Pan
- Food Science and Technology Department of the Marine Science School, Ningbo University, Ningbo 315211, P. R. China.
| | - Z Wu
- Food Science and Nutrition Department, Nanjing Normal University, Nanjing 210097, P. R. China
| | - Y Y Sun
- Food Science and Technology Department of the Marine Science School, Ningbo University, Ningbo 315211, P. R. China
| | - Y X Guo
- Food Science and Nutrition Department, Nanjing Normal University, Nanjing 210097, P. R. China
| | - X Q Zeng
- Food Science and Technology Department of the Marine Science School, Ningbo University, Ningbo 315211, P. R. China
| |
Collapse
|
21
|
Zhang YB, Wang LH, Zhang DY, Zhou LL, Guo YX. Ultrasound-assisted extraction and purification of schisandrin B from Schisandra chinensis (Turcz.) Baill seeds: optimization by response surface methodology. Ultrason Sonochem 2014; 21:461-6. [PMID: 24084334 DOI: 10.1016/j.ultsonch.2013.09.009] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/06/2012] [Revised: 08/25/2013] [Accepted: 09/08/2013] [Indexed: 05/20/2023]
Abstract
The objective of this study is to develop a process consisting of ultrasonic-assisted extraction, silica-gel column chromatography and crystallization to optimize pilot scale recovery of schisandrin B (SAB) from Schisandra chinensis seeds. The effects of five independent variables including liquid-solid ratio, ethanol concentration, ultrasonic power, extraction time, and temperature on the SAB yield were evaluated with fractional factorial design (FFD). The FFD results showed that the ethanol concentration was the only significant factor for the yield of SAB. Then, with the liquid-solid ratio 5 (mL/g) and ultrasonic power 600 W, the other three parameters were further optimized by means of response surface methodology (RSM). The RSM results revealed that the optimal conditions consisted of 95% ethanol, 60 °C and 70 min. The average experimental SAB yield under the optimum conditions was found to be 5.80 mg/g, which was consistent with the predicted value of 5.83 mg/g. Subsequently, a silica gel chromatographic process was used to prepare the SAB-enriched extract with petroleum ether/acetone (95:5, v/v) as eluents. After final crystallization, 1.46 g of SAB with the purity of 99.4% and the overall recovery of 57.1% was obtained from 400 g seeds powder. This method provides an efficient and low-cost way for SAB purification for pharmaceutical industrial applications.
Collapse
Affiliation(s)
- Y B Zhang
- School Pharmaceutical Engineering, Shenyang Pharmaceutical University, Wenhua Road 103, Shenyang 110016, PR China
| | | | | | | | | |
Collapse
|
22
|
Guo YX, Han J, Zhang DY, Wang LH, Zhou LL. Aqueous two-phase system coupled with ultrasound for the extraction of lignans from seeds of Schisandra chinensis (turcz.) Baill. Ultrason Sonochem 2013; 20:125-132. [PMID: 22668796 DOI: 10.1016/j.ultsonch.2012.05.006] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/16/2012] [Revised: 05/08/2012] [Accepted: 05/11/2012] [Indexed: 06/01/2023]
Abstract
In this study the potential use of an aqueous two phase system (ATPS) coupled with ultrasound for the extraction of lignans from Schisandra chinensis seeds was evaluated and optimized using response surface methodology (RSM). The main bioactive components, schizandrin (SA), schisantherin A (SAA) and deoxyschizandrin (DSA) were selected as markers. The partitioning behavior of lignans in different salt-types of ATPS was compared. The optimization ATPS of 25% (w/w) (NH(4))(2)SO(4) and 19% (w/w) ethanol were selected based on their higher upper phase partitioning coefficient (>74) and the recovery (>93%) for three markers. Using the optimized ATPS solvent, the RMS results showed 20:1 of solvent:solid, 800 W and 61.1 min were the optimal ultrasound assisted extraction conditions, under which 13.10mg/g SA, 1.87 mg/g SAA and 1.84 mg/g DSA were recovered in the upper phase, whereas the wasted stigmas accumulated in the lower phase. Compared with 80% ethanol (v/v) ultrasonic extraction, similar yields were obtained, but the present method exhibited higher extraction purity for the selective extraction of lignans from S. chinensis seeds.
Collapse
Affiliation(s)
- Y X Guo
- School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, PR China.
| | | | | | | | | |
Collapse
|
23
|
Guo YX, Han J, Zhang DY, Wang LH, Zhou LL. An ammonium sulfate/ethanol aqueous two-phase system combined with ultrasonication for the separation and purification of lithospermic acid B from Salvia miltiorrhiza Bunge. Ultrason Sonochem 2012; 19:719-724. [PMID: 22265019 DOI: 10.1016/j.ultsonch.2011.12.017] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2011] [Revised: 12/18/2011] [Accepted: 12/24/2011] [Indexed: 05/31/2023]
Abstract
We studied the effect of ultrasonication extraction technology combined with ammonium sulfate/ethanol aqueous two-phase system (ATPS) for the separation of lithospermic acid B (LAB) from Salvia miltiorrhiza Bunge. According to the literature and preliminary studies, ammonium sulfate concentration, ethanol concentration, pH, ultrasonication power, ultrasonication time and the ratio of solvent-to-solid were investigated using a single factor design to identify the factors affecting separation. Taking into consideration a simultaneous increase in LAB recovery (R (%)) and partition coefficient (K), the best performance of the ATPS was obtained at 25°C and pH 2 using ammonium sulfate 22% (w/w) and ethanol 30% (w/w). To keep the solvent-to-solid ratio at 10, response surface methodology was used to find the optimal ultrasonication power and ultrasonication time. Quadratic models were predicted for LAB yield in the upper phase. Optimal conditions of 572.1 W ultrasonication power and 42.2 min produced a maximum yield of LAB of 42.16 mg g(-1) sample. There was no obvious degradation of LAB with ultrasound under the applied conditions, and the experimental yield of LAB was 42.49 mg g(-1) sample and the purity was 55.28% (w/w), which was much higher than that obtained using conventional extraction. The present study demonstrated that ultrasound coupled with aqueous two-phase systems is very efficient tool for the extraction and purification of LAB from Salvia miltiorrhiza Bunge.
Collapse
Affiliation(s)
- Y X Guo
- School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, Wenhua Road 103, Shenyang 116016, PR China.
| | | | | | | | | |
Collapse
|
24
|
Abstract
AIMS To isolate new lactobacilli strain with cholesterol-lowering effect and analyse its probiotic properties and possible mechanisms of cholesterol removal. METHODS AND RESULTS The strain with cholesterol-lowering effect was isolated from pickled juice. The acid and bile tolerance and antimicrobial activity were tested. The free cholalic acid, the cholesterol in supernatant fluid, washing buffer and cell extract, the cholesterol removed by growing, dead and resting cells were quantified. The isolated strain with high cholesterol-reducing rate of 43.95% was identified as Lactobacillus buchneri (Lact. buchneri) P2. It had acid and bile tolerance and antimicrobial activity. Moreover, it could remove cholesterol via coprecipitating with deconjugated bile salts, assimilating and adsorbing by cells. And the assimilation was considered to be the main reason of cholesterol removal. CONCLUSIONS The isolated Lact. buchneri P2 showed probiotic properties of cholesterol reduction, acid and bile tolerance and antimicrobial activity and could remove cholesterol via different ways. SIGNIFICANCE AND IMPACT OF THE STUDY A new strain of Lact. buchneri P2 with efficient cholesterol-reducing ability was isolated to provide species diversity of lactobacilli for functional dairy products. And the possible mechanism of cholesterol removal by Lact. buchneri was discussed.
Collapse
Affiliation(s)
- X Q Zeng
- Food Science and Nutrition Department, Nanjing Normal University, Nanjing, China
| | | | | |
Collapse
|
25
|
Zhao S, Guo YX, Liu QH, Wang HX, Ng TB. Lectins but not antifungal proteins exhibit anti-nematode activity. Environ Toxicol Pharmacol 2009; 28:265-268. [PMID: 21784014 DOI: 10.1016/j.etap.2009.05.003] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/14/2009] [Revised: 04/27/2009] [Accepted: 05/02/2009] [Indexed: 05/31/2023]
Abstract
A variety of lectins and antifungal proteins were tested for toxicity against the plant parasitic nematodes Ditylenchus dipsaci and Heterodera glycines. It was found that lectins from the mushrooms Xylaria hypoxylon, Agrocybe cylindracea and Tricholoma mongolicum (TML-1) were the most potent against D. dipsaci, with EC(50) being 4.7, 9, and 20mg/ml, respectively. Lectins from Pseudostellaria heterophylla, samta tomato, and the mushrooms T. mongolicum (TML-2), Ganoderma lucidum, and Boletus edulis, and antifungal proteins from Ginkgo biloba toward D. dipsaci and pumpkin Cucurbita moschata had much lower anti-nematode potencies and could be considered as inactive for practical purposes. All lectins except that from P.heterophylle were potent against H.glycines.
Collapse
Affiliation(s)
- S Zhao
- State Key Laboratory for Agrobiotechnology and Department of Microbiology, China Agricultural University, Beijing, China
| | | | | | | | | |
Collapse
|
26
|
Guo YX, Liu QH, Ng TB, Wang HX. Isarfelin, a peptide with antifungal and insecticidal activities from Isaria felina. Peptides 2005; 26:2384-91. [PMID: 16005544 DOI: 10.1016/j.peptides.2005.05.020] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/21/2005] [Revised: 05/13/2005] [Accepted: 05/16/2005] [Indexed: 10/25/2022]
Abstract
Isarfelin, a peptide with inhibitory activity on mycelial growth in Rhizoctonia solani and Sclerotinia sclerotiorum and insecticidal activity toward Leucania separata, was isolated from the mycelia of Isaria felina. The IC50 value of its antifungal activity against R. solani was 3.1 microg mL(-1). However, it was devoid of activity toward several bacterial species including Bacillus subtilis, E. coli and Staphylococcus aureus. The isolation procedure involved ethanol extraction, adsorption on YPR II macropore adsorption resin, ethyl acetate extraction, petroleum ether precipitation and recrystallization from ethyl acetate.
Collapse
Affiliation(s)
- Y X Guo
- Department of Microbiology, China Agricultural University and State Key Laboratory for Agrobiotechnology, Beijing, China
| | | | | | | |
Collapse
|
27
|
Mathew JA, Guo YX, Goh KP, Chan J, Verburg-van Kemenade BML, Kwang J. Characterisation of a monoclonal antibody to carp IL-1beta and the development of a sensitive capture ELISA. Fish Shellfish Immunol 2002; 13:85-95. [PMID: 12400859 DOI: 10.1006/fsim.2001.0383] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
A carp IL-1beta gene was identified from a subtraction hybridisation technology based cDNA library from activated carp leucocytes. This gene was cloned into pQE vector carrying 6xHis tag and the protein was expressed. Recombinant IL-1beta was used to produce hybridomas specific for carp IL-1beta. Monoclonal antibodies were purified by affinity column and a sandwich ELISA for IL-1beta was developed with a detection limit of 10 ng of the recombinant protein. Using the capture ELISA, the presence of native IL-1beta in culture supernatant of PHA-stimulated leucocytes from carp was identified, which was confirmed by SDS-PAGE and Western blot. Since IL-1beta is known to stimulate proliferation of T & B cells and macrophages, its ability to stimulate proliferation of carp leucocytes was studied using tritiated thymidine. The recombinant protein was found to significantly stimulate proliferation of head kidney and spleen cells from carp.
Collapse
Affiliation(s)
- J A Mathew
- Animal Health Biotechnology Laboratory, Institute of Molecular Agrobiology, National University of Singapore
| | | | | | | | | | | |
Collapse
|
28
|
Guan XZ, Guo YX. [The medical contents of the ancient book of Yi nationality, On Cosmos and humanity] (Chi). Zhonghua Yi Shi Za Zhi 2001; 21:187-8. [PMID: 11623219] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/21/2023]
|
29
|
Guo YX, Wang XL, Meng QY. [Experimental study of pathophysiological changes for peripheral nerve after neurolysis]. Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi 2000; 14:336-9. [PMID: 12516431] [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: 02/28/2023]
Abstract
OBJECTIVE To investigate the changes of regeneration and conduction function for peripheral nerve after neurolysis by nerve special staining and electrophysiology. METHODS Sixty Sprague-Dawley male rats were randomly divided into four groups(n = 15), four methods were designed on rats models of sciatic nerve compression. There were simple decompression as group A, internal neurolysis after decompression as group B, lemithason(0.5 mg/kg) injected in the epineurium after decompression as group C, and lemithason(0.5 mg/kg) injected around the epineurium after decompression and internal neurolysis as group D. Motor nerve conduction velocity(MNCV) and motor latency (Lan) were monitored at 1,2,3,4,5 weeks after decompression, sections were regularly taken from the previously compressed area to perform morphometric analysis. RESULTS After 2 weeks of decompression, the significant recovery were observed in both MNCV and Lan of four groups. Up to the 5th week of decompression, recovery of electrophysiology was significantly faster in group C and D than that of group A and B, particular in group C(P < 0.05), while group A compared with group B, there was no statistical difference in both MNCV and Lan(P > 0.05). Morphometric analysis showed that a lot of neural regeneration fibers were observed in group C and D after 3 weeks of decompression. CONCLUSION Decompression can improve nerve conduction function significantly, while injection of lemithason in epineurium after decompression can promote the structure and function recovery of injured nerve.
Collapse
Affiliation(s)
- Y X Guo
- Department of Surgery, Third Affiliated Hospital of Hebei Medical University, Shijiazhuang Hebei, P. R. China 050051
| | | | | |
Collapse
|
30
|
Kawasaki M, Guo YX. Parallel projection of amplitude and phase information from the hindbrain to the midbrain of the African electric fish Gymnarchus niloticus. J Neurosci 1998; 18:7599-611. [PMID: 9736677 PMCID: PMC6793244] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
Abstract
Two distinct sensory cues in electrosensory signals, amplitude modulation and differential phase modulation, are essential for an African wave-type electric fish, Gymnarchus, to perform the jamming avoidance responses. Individual neurons in the first brain station for central processing, the electrosensory lateral line lobe (ELL), were investigated by the in vivo whole-cell recording and labeling technique for their physiological responses, location, morphology, and projection areas. Neurons in the dorsal zone of the ELL responded selectively to amplitude modulation. Neurons in the outer cell layer of the medial zone were categorized physiologically into two groups: amplitude-sensitive and differential phase-sensitive. All but one neuron in the inner cell layer of the medial zone responded exclusively to differential phase modulation. All neurons recorded and labeled in the ELL had pyramidal morphology with large and extensive apical dendrites and less extensive basal dendrites. They were found to project to two midbrain nuclei: the nucleus praeeminentialis and the torus semicircularis. Amplitude-sensitive neurons in the dorsal zone projected exclusively to the lateral posterior subdivision, the torus semicircularis. Neurons in the medial zone projected to the medial dorsal and lateral anterior subdivisions of the torus semicircularis. Although some neurons in the ELL responded to both amplitude and differential phase modulation, they did not differentiate between temporal patterns of the two cues that encode necessary information for the jamming avoidance response. Overlapping projection of amplitude and differential phase-sensitive neurons to the torus semicircularis suggests integration of the two sensory cues in this nucleus.
Collapse
Affiliation(s)
- M Kawasaki
- Department of Biology, University of Virginia, Charlottesville, Virginia 22903, USA
| | | |
Collapse
|
31
|
Guo YX, Kawasaki M. Representation of accurate temporal information in the electrosensory system of the African electric fish, Gymnarchus niloticus. J Neurosci 1997; 17:1761-8. [PMID: 9030634 PMCID: PMC6573366] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Abstract
Differential-phase-sensitive neurons in the electrosensory lateral line lobe (ELL) of the African electric fish, Gymnarchus niloticus, are sensitive to time disparities on the order of microseconds between afferent action potentials. These action potentials fire in a phase-locked manner in response to the animal's own wave-type electric organ discharges (EODs) (). The time disparity is one of the essential cues for an electrical behavior, the jamming avoidance response (JAR). To gain an insight into the accurate temporal processing in the ELL, firing time accuracy and dynamic response properties of action potentials of the phase-locked neurons (PLNs) in the ELL were examined. The temporal accuracy of the entire neuronal circuit for the JAR was also measured using behavioral responses. Standard deviation of firing times of PLNs' action potentials was approximately 6 micro;sec. The PLNs represent zerocrossing times of each stimulus cycle with this accuracy even when stimulus phase was modulated at high frequencies ( approximately 50 Hz). Distinct JAR occurred when time disparity was diminished below 1 micro;sec, and a marginal JAR could still be detected with a time disparity of 100 nsec. Standard deviation of the firing times of EODs was approximately several hundred nanoseconds. This stability of the EOD, however, was demonstrated to be unnecessary for the JAR. JARs occurred even when a large artificial jitter ( approximately 60 micro;sec) was introduced to a stimulus that mimicked fish's own EOD and the time disparity for JAR was diminished to 1 micro;sec. This immunity of JAR to the EOD jitter is explained by the insensitivity of the differential-phase-sensitive neurons in the ELL to a common phase modulation. The JAR of the South American electric fish, Eigenmannia, also occurs in response to stimuli that generate comparably small phase differences (; ). The present study revealed that the independently evolved Eigenmannia and Gymnarchus exhibit a comparative level of remarkable temporal accuracy.
Collapse
Affiliation(s)
- Y X Guo
- Department of Biology, University of Virginia, Charlottesville, Virginia 22903, USA
| | | |
Collapse
|
32
|
Zhou XH, Sun XF, Guo YX, Lei XG, Chen XF, Liu Z, Zhang YH, Jin HJ, Luo YX, Wen SX, Yuan GJ, Li GS, Yang CX. Excited states in neutron-deficient 198Bi. Phys Rev C Nucl Phys 1996; 54:2948-2953. [PMID: 9971666 DOI: 10.1103/physrevc.54.2948] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
|
33
|
Kawasaki M, Prather J, Guo YX. Sensory cues for the gradual frequency fall responses of the gymnotiform electric fish, Rhamphichthys rostratus. J Comp Physiol A Neuroethol Sens Neural Behav Physiol 1996; 178:453-62. [PMID: 8847661 DOI: 10.1007/bf00190176] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
The sensory cues for a less known form of frequency shifting behavior, gradual frequency falls, of electric organ discharges (EODs) in a pulse-type gymnotiform electric fish, Rhamphichthys rostratus, were identified. We found that the gradual frequency fall occurs independently of more commonly observed momentary phase shifting behavior, and is due to perturbation of sensory feedback of the fish's own EODs by EODs of neighboring fish. The following components were identified as essential features in the signal mixture of the fish's own and the neighbor's EOD pulses: (1) the neighbor's pulses must be placed within a few millisecond of the fish's own pulses, (2) the neighbor's pulses, presented singly at low frequencies (0.2-4 Hz), were sufficient, (3) the frequency of individual pulse presentation must be below 4 Hz, (4) amplitude modulation of the sensory feedback of the fish's own pulses induced by such insertions of the neighbor's pulses must contain a high frequency component: sinusoidal amplitude modulation of the fish's own EOD feedback at these low frequencies does not induce gradual frequency falls. Differential stimulation across body surfaces, which is required for the jamming avoidance response (JAR) of wave-type gymnotiform electric fish, was not necessary for this behavior. We propose a cascade of high-pass and low-pass frequency filters within the amplitude processing pathway in the central nervous system as the mechanism of the gradual frequency fall response.
Collapse
Affiliation(s)
- M Kawasaki
- Department of Biology, University of Virginia, Charlottesville 22903, USA
| | | | | |
Collapse
|
34
|
Kawasaki M, Guo YX. Neuronal circuitry for comparison of timing in the electrosensory lateral line lobe of the African wave-type electric fish Gymnarchus niloticus. J Neurosci 1996; 16:380-91. [PMID: 8613805 PMCID: PMC6578713] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
Abstract
An African wave-type electric fish, Gymnarchus, compares timing on the order of microseconds of sensory feedback from from its high-frequency (approximately 400 Hz) electric organ discharges (EODs) received at different parts of its body surfaces. This capability is essential for and demonstrated by the jamming avoidance response (JAR). The organization of the timing comparison mechanisms was identified in the electrosensory lateral line lobe (ELL) in the hindbrain by field potential, extra- and intracellular recordings, and intracellular labeling with biotinylated agents. Timing of phase of the EOD feedback is carried by action potentials of S-type primary afferent fibers that project to the inner cellular layer (ICL) of the medial zone of the ELL and to the giant neurons in the ELL. The giant neurons bilaterally project to the ICL, where neurons sensitive to phase differences between different parts of the body occur. Although sensitive to dynamic phase changes of several microseconds, these differential-phase-sensitive neurons showed adaptation to steady-state changes of phase difference over a wide range (greater than +/- 100 microseconds) and continued to respond to small modulations after the mean difference was shifted. Gymnarchus and an independently evolved South American electric fish, Eigenmannia, exhibit nearly identical JARs and share a rather complex but identical set of computational algorithms for JAR. This study showed that one of the computational steps, the timing comparison between body surfaces, occurs in the hindbrain in Gymnarchus, in contrast to the midbrain in Eigenmannia. Thus, similar systems with a similar overall function may have evolved differently in different genera by assigning a subfunction to different substructures within the brain.
Collapse
Affiliation(s)
- M Kawasaki
- University of Virginia, Department of Biology, Charlottesville 22903, USA
| | | |
Collapse
|
35
|
Weng PK, Hua PF, Li SG, Wen SX, Zhu LH, Zhang LK, Yuan GJ, Li GS, Yu PS, Yang CX, Sun XF, Guo YX, Lei XG. High spin structure in odd-proton nuclei 129,131Pr. Phys Rev C Nucl Phys 1993; 47:1428-1435. [PMID: 9968586 DOI: 10.1103/physrevc.47.1428] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
|
36
|
Guo YX. [Diagnosis and treatment of rudimentary uterine horn complicating pregnancy]. Zhonghua Fu Chan Ke Za Zhi 1991; 26:31-2, 61-2. [PMID: 2004571] [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: 12/29/2022]
Abstract
During the period from (May 1980 to July 1985), six cases of rudimentary uterine horn complicating pregnancy were presented. Artificial abortion failed in five cases, one case complained of lower abdominal mass only. The other 5 cases were correctly diagnosed preoperatively. In one case the pregnant horn ruptured with profuse internal haemorrhage and deep shock. The horn cavity was separated from the normal uterine cavity by a connective tissue cord in all 6 cases. Two of the cases had dysmenorrhea and congenital abnormally of ureter in the same side of the rudimentary horn. Diagnosis was discussed in detail B-ultrasound scanning is useful for the early diagnosis of rudimentary horn pregnancy. The rudimentary horn should be resected together with the fallopian tube on the same side with preservation of ovary. Its round ligament must be cut and fixed to the normal uterus.
Collapse
Affiliation(s)
- Y X Guo
- Zhuzhou Municipal First Hospital, Hunan
| |
Collapse
|
37
|
Liang YR, Cheng RX, Shen M, Guo YX, Su XS. A further study on capillary-like bile ductules proliferation in chronic active hepatitis. Chin Med J (Engl) 1990; 103:623-8. [PMID: 1700747] [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: 12/28/2022] Open
Abstract
64 cases of chronic active hepatitis (CAH) and 84 cases of non-CAH liver diseases were studied with keratin stain. The capillary-like bile ductules (CLBD) were proliferating and their morphology was identical to that with Type V collagen stain reported before. CLBD proliferation were more marked in CAH than in other liver diseases, and it was considered to be one of the characteristics of CAH and could be used for differential diagnosis. The ultrastructure of CLBD was specific in morphology. The HBV-DNA in CLBD shown by the technique of in situ hybridization suggested that HBV might infect the cells of CLBD.
Collapse
Affiliation(s)
- Y R Liang
- Department of Pathology, Human Medical University, Changsha
| | | | | | | | | |
Collapse
|
38
|
Guo YX, He P, Tu L, Wang DF. [Study on the rule of discoloration and prediction of shelf-life of streptomycin sulfate injection]. Yao Xue Xue Bao 1988; 23:532-8. [PMID: 3218525] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
|
39
|
Liu Y, Yin GK, Guo YX. [Relation between discoloration stability and pH value of 34% streptomycin sulfate aqueous solution]. Hua Xi Yi Ke Da Xue Xue Bao 1988; 19:69-71. [PMID: 3391603] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
|
40
|
Liang YR, Guo YX, Yi XY, Zeng XF, Peng LX, Zeng QS. Schistosoma japonicum: a comparison of the development of the parasite and associated pathological changes in mice and jirds (Meriones unguiculatus). Int J Parasitol 1983; 13:531-8. [PMID: 6654579 DOI: 10.1016/s0020-7519(83)80024-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
|
41
|
Yin GK, Guo YX, Ma BZ. [Studies on the stability of ascorbic acid injection. III. Study on the rate of degradation of 25% ascorbic acid injection]. Yao Xue Xue Bao 1982; 17:378-81. [PMID: 7180471] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
|
42
|
Yin GK, Ma BZ, Guo YX, Yang Y, Sun Y, Qu BZ, Ho YN, Luo SQ, Zhu SQ. [Studies on the stability of 25% ascorbic acid injection. II. Prediction of the shelflife of 25% ascorbic acid injection (author's transl)]. Yao Xue Xue Bao 1980; 15:298-302. [PMID: 7457148] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
|
43
|
Yin GK, Ma BZ, Guo YX. [Studies on the stability of 25% ascorbic acid injection. I. Study on the rate of coloration of 25% ascorbic acid injection (author's transl)]. Yao Xue Xue Bao 1980; 15:234-8. [PMID: 7457142] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
|