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Dai H, Lu YY, Zhao J. [Challenges and strategies in the treatment of neovascular age-related macular degeneration]. Zhonghua Yan Ke Za Zhi 2024; 60:215-219. [PMID: 38462368 DOI: 10.3760/cma.j.cn112142-20230807-00026] [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: 03/12/2024]
Abstract
Neovascular age-related macular degeneration (nAMD) is a leading cause of blindness in the elderly, and anti-vascular endothelial growth factor (VEGF) therapy is currently the primary treatment approach. However, the real-world effectiveness of nAMD treatment is not always satisfactory and faces various challenges. Frequent administration and follow-up burdens can lead to decreased patient compliance during long-term treatment, resulting in suboptimal outcomes. Some lesions exhibit poor or no response to anti-VEGF treatment, leading to difficulties in maintaining or even declining visual acuity. Factors such as lesion fibrosis and tissue atrophy can contribute to visual deterioration. Therefore, standardizing and individualizing treatment plans, along with enhancing comprehensive monitoring and management throughout the disease course, are crucial improvement measures. The evidence-based guidelines for diagnosis and treatment of age-related macular degeneration in China, released in 2023, provide guidance for standardized clinical diagnosis and treatment. Meanwhile, research and development of new drugs and administration methods are anticipated for the future.
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Affiliation(s)
- H Dai
- Department of Ophthalmology, Beijing Hospital, National Center of Gerontology; Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - Y Y Lu
- Department of Ophthalmology, Beijing Hospital, National Center of Gerontology; Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - J Zhao
- Department of Ophthalmology, Beijing Hospital, National Center of Gerontology; Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing 100730, China
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Wang AH, Duan DH, Li XH, Leng PB, Lu YY, Zhang DD. [Investigation of serum surface active protein D and clara cell protein levels in workers exposed to silica dust in ferrous metal foundry]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2023; 41:667-672. [PMID: 37805426 DOI: 10.3760/cma.j.cn121094-20220606-00305] [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] [Subscribe] [Scholar Register] [Indexed: 10/09/2023]
Abstract
Objective: To investigate the levels of serum surface active protein D (SP-D) and clara cell protein (CCl6) in workers exposed to black silica dust, and analyze its influencing factors. Methods: From July to September 2021, 174 workers in 37 positions exposed to silica dust in 5 ferrous metal foundry were investigated by cross-sectional research method. The exposure concentration of silica dust workers was obtained through occupational health field investigation and detection, and the general situation of the study subjects was obtained through questionnaire survey and peripheral blood was collected. Double antigen sandwich enzyme-linked immunosorbent assay (ELISA) was used to detect the concentrations of SP-D and CC16 in serum of workers. The mean values were compared by one-way ANOVA, and the influencing factors of SP-D and CC16 concentrations in serum were analyzed by ordered multiple logistic regression. Results: The time-weighted average concentration (C-TWA) of 174 workers exposed to silica dust (respirable dust) ranged from 0.09 mg/m(3)~3.58 mg/m(3), and the C-TWA overstandard rate of dust exposed workers was 32.18% (56/174) , with differences among workers in different positions (χ(2)=28.85, P<0.001) . The highest concentration of silica dust was (0.82±0.11) mg/m(3). Using C-TWA<50% OEL occupational exposure limit (OEL) as reference, serum SP-D concentration in workers with ≥50% OEL was increased (OR=4.95, 95%CI: 1.86~13.17, P=0.001) , while CC16 concentration was decreased (OR=0.15, 95%CI: 0.05~0.40, P<0.001) ; Serum CC16 concentration decreased in workers exposed to silica dust C-TWA≥OEL (OR=0.46, 95%CI: 0.28~0.98, P=0.043) . Compared with those with low occupational health literacy, the serum SP-D concentration of workers with high occupational health literacy decreased (OR=0.48, 95%CI: 0.25~0.92, P=0.027) and CC16 concentration increased (OR=2.09, 95%CI: 1.10-3.97, P=0.024) . Conclusion: When no abnormality was found in the physical examination of workers, the serum SP-D and CC16 concentration levels changed, and the change was related to the concentration of workers exposed to silica dust.
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Affiliation(s)
- A H Wang
- Zhejiang Provincial Key Laboratory of Health Risk Appraisal for Trace Toxic Chemicals, Department of Environmental and Occupational Health, Ningbo Municipal Center for Disease Control and Prevention, Ningbo 315010, China
| | - D H Duan
- Zhejiang Provincial Key Laboratory of Health Risk Appraisal for Trace Toxic Chemicals, Department of Environmental and Occupational Health, Ningbo Municipal Center for Disease Control and Prevention, Ningbo 315010, China
| | - X H Li
- Zhejiang Provincial Key Laboratory of Health Risk Appraisal for Trace Toxic Chemicals, Department of Environmental and Occupational Health, Ningbo Municipal Center for Disease Control and Prevention, Ningbo 315010, China
| | - P B Leng
- Zhejiang Provincial Key Laboratory of Health Risk Appraisal for Trace Toxic Chemicals, Department of Environmental and Occupational Health, Ningbo Municipal Center for Disease Control and Prevention, Ningbo 315010, China
| | - Y Y Lu
- Zhejiang Provincial Key Laboratory of Health Risk Appraisal for Trace Toxic Chemicals, Department of Environmental and Occupational Health, Ningbo Municipal Center for Disease Control and Prevention, Ningbo 315010, China
| | - D D Zhang
- Zhejiang Provincial Key Laboratory of Health Risk Appraisal for Trace Toxic Chemicals, Department of Environmental and Occupational Health, Ningbo Municipal Center for Disease Control and Prevention, Ningbo 315010, China
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He WY, Lv LC, Pu WX, Gao GL, Zhuang ZL, Lu YY, Zhuo C, Liu JH. Characterization of an International High-Risk Escherichia coli ST410 Clone Coproducing NDM-5 and OXA-181 in a Food Market in China. Microbiol Spectr 2023; 11:e0472722. [PMID: 37166308 PMCID: PMC10269901 DOI: 10.1128/spectrum.04727-22] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2022] [Accepted: 04/15/2023] [Indexed: 05/12/2023] Open
Abstract
During a 2020 routine epidemiological investigation of carbapenem-resistant Enterobacterales at a local food market in Guangzhou, China, two Escherichia coli ST410 isolates coproducing NDM-5 and OXA-181 were obtained from environmental samples. Antimicrobial susceptibility testing, whole-genome sequencing, and conjugation assays were applied to identify their resistance phenotypes, phylogenetic relatedness, and genetic characteristics. Phylogenetic analysis showed that the two isolates were clonally related with only one core-genome single-nucleotide polymorphism (SNP) difference and clustered into a branch with 87 E. coli ST410 isolates deposited in GenBank. These 89 ST410 isolates were closely related (≤51 SNPs), and most were from humans in Southeast Asian countries (n = 47). A Vietnamese clinical isolate collected in 2017 showed the strongest epidemiological link (seven SNPs) to the two ST410 isolates detected in this study. Complete-genome analysis revealed that the carbapenem resistance determinants blaNDM-5 and blaOXA-181 were located on an IncF1:A1:B49-IncQ1 plasmid and IncX3 plasmid, respectively. Conjugation experiments confirmed that the IncX3 plasmid was self-transmissible while the IncF1:A1:B49-IncQ1 plasmid was nonconjugative. BLASTn analysis indicated that the two plasmids showed high similarity to other blaNDM-5-bearing IncF1:A1:B49-IncQ1 and blaOXA-181-bearing IncX3 plasmids from other countries. Altogether, the high similarity of the core genomes and plasmids between the ST410 isolates found in this study and those human source isolates from foreign countries suggested the clonal spread of E. coli ST410 strains and horizontal transmission of blaOXA-181-bearing IncX3 plasmids across Southeast Asian countries. Stringent sanitary management of food markets is important to prevent the dissemination of high-risk clones to the public. IMPORTANCE This is the first report of an Escherichia coli ST410 clone that coproduces NDM-5 and OXA-181 in China. The high similarity of the core genomes and plasmids between the ST410 isolates characterized in this study and human source isolates from foreign countries strongly suggests that this ST410 lineage is an international high-risk clone, highlighting the need for continuous global surveillance of ST410 clones.
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Affiliation(s)
- Wan-Yun He
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, China
- Guangdong Provincial Key Laboratory of Veterinary Pharmaceutics Development and Safety Evaluation, Key Laboratory of Zoonosis of Ministry of Agricultural and Rural Affairs, National Risk Assessment Laboratory for Antimicrobial Resistant of Microorganisms in Animals, College of Veterinary Medicine, South China Agricultural University, Guangzhou, China
| | - Lu-Chao Lv
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, China
- Guangdong Provincial Key Laboratory of Veterinary Pharmaceutics Development and Safety Evaluation, Key Laboratory of Zoonosis of Ministry of Agricultural and Rural Affairs, National Risk Assessment Laboratory for Antimicrobial Resistant of Microorganisms in Animals, College of Veterinary Medicine, South China Agricultural University, Guangzhou, China
| | - Wen-Xian Pu
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, China
- Guangdong Provincial Key Laboratory of Veterinary Pharmaceutics Development and Safety Evaluation, Key Laboratory of Zoonosis of Ministry of Agricultural and Rural Affairs, National Risk Assessment Laboratory for Antimicrobial Resistant of Microorganisms in Animals, College of Veterinary Medicine, South China Agricultural University, Guangzhou, China
| | - Guo-Long Gao
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, China
- Guangdong Provincial Key Laboratory of Veterinary Pharmaceutics Development and Safety Evaluation, Key Laboratory of Zoonosis of Ministry of Agricultural and Rural Affairs, National Risk Assessment Laboratory for Antimicrobial Resistant of Microorganisms in Animals, College of Veterinary Medicine, South China Agricultural University, Guangzhou, China
| | - Zi-Lin Zhuang
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, China
- Guangdong Provincial Key Laboratory of Veterinary Pharmaceutics Development and Safety Evaluation, Key Laboratory of Zoonosis of Ministry of Agricultural and Rural Affairs, National Risk Assessment Laboratory for Antimicrobial Resistant of Microorganisms in Animals, College of Veterinary Medicine, South China Agricultural University, Guangzhou, China
| | - Yao-Yao Lu
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, China
- Guangdong Provincial Key Laboratory of Veterinary Pharmaceutics Development and Safety Evaluation, Key Laboratory of Zoonosis of Ministry of Agricultural and Rural Affairs, National Risk Assessment Laboratory for Antimicrobial Resistant of Microorganisms in Animals, College of Veterinary Medicine, South China Agricultural University, Guangzhou, China
| | - Chao Zhuo
- State Key Laboratory of Respiratory Disease, First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Jian-Hua Liu
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, China
- Guangdong Provincial Key Laboratory of Veterinary Pharmaceutics Development and Safety Evaluation, Key Laboratory of Zoonosis of Ministry of Agricultural and Rural Affairs, National Risk Assessment Laboratory for Antimicrobial Resistant of Microorganisms in Animals, College of Veterinary Medicine, South China Agricultural University, Guangzhou, China
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Liu YQ, Lu YY, Li WX, Wu ZJ, Zhang F, Wang YR, Li RS, Zhou XS. [Establishment of a prognostic model for non-nephrotic membranous nephropathy based on unbalanced data]. Zhonghua Yi Xue Za Zhi 2023; 103:1386-1392. [PMID: 37150691 DOI: 10.3760/cma.j.cn112137-20221115-02399] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Subscribe] [Scholar Register] [Indexed: 05/09/2023]
Abstract
Objective: To explore the construction of a machine learning model based on unbalanced data to predict the progression of non-nephrotic membranous nephropathy. Methods: The clinical and pathological data of patients diagnosed with non-nephrotic membranous nephropathy by renal biopsy in Shanxi People's Hospital from January 2018 to December 2021 were retrospectively analyzed.The prediction models were constructed based on logistic regression, support vector machine (SVM) and light gradient boosting machine (lightGBM), respectively. The mixed sampling technology was used to process the unbalanced data, and the area under the receiver operating characteristic curve (AUC) was used to evaluate the predictive performance of the models. Finally, Shapley additive explanation (SHAP) was used to interpret the results of the optimal prediction model. Results: A total of 148 patients were included in the study, including 84 males and 64 females, with a mean age of (47.2±12.5) years. The follow-up time [M(Q1, Q3)] was 14(7, 20) months. Twenty-three patients (15.5%) achieved the renal end-point event in the study. The SVM model had the highest AUC (0.868, 95%CI: 0.813-0.925), followed by logistic regression (AUC=0.865, 95%CI: 0.755-0.899) and lightGBM (AUC=0.791, 95%CI: 0.690-0.882). The feature recursive elimination cross validation (RFECV) method based on random forest (RF) and the SHAP plot based on the SVM model showed that immunohistochemistry IgG, total protein (TP), anti-phospholipase A2 receptor (anti-PLA2R), blood chloride and D-Dimer were risk factors affecting the progress of non-nephrotic membranous nephropathy. Moreover, patients with high immunohistochemistry IgG, anti-PLA2R and D-Dimer had an increased risk of achieving the renal end-point event. Conclusion: The SVM model established in this study can effectively predict the progress of non-nephrotic membranous nephropathy, and provide a new method for the early identification of high-risk patients and precision therapy.
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Affiliation(s)
- Y Q Liu
- Big Data Center of Kidney Disease, Shanxi Provincial People's Hospital, Taiyuan 030012, China
| | - Y Y Lu
- the Fifth Clinical Medical College of Shanxi Medical University, Taiyuan 030001, China
| | - W X Li
- Big Data Center of Kidney Disease, Shanxi Provincial People's Hospital, Taiyuan 030012, China
| | - Z J Wu
- Big Data Center of Kidney Disease, Shanxi Provincial People's Hospital, Taiyuan 030012, China
| | - F Zhang
- Big Data Center of Kidney Disease, Shanxi Provincial People's Hospital, Taiyuan 030012, China
| | - Y R Wang
- the Fifth Clinical Medical College of Shanxi Medical University, Taiyuan 030001, China
| | - R S Li
- Big Data Center of Kidney Disease, Shanxi Provincial People's Hospital, Taiyuan 030012, China
| | - X S Zhou
- Big Data Center of Kidney Disease, Shanxi Provincial People's Hospital, Taiyuan 030012, China
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Wu ML, Wang XR, Zhang WD, Zhang JM, Lu YY, Chai YN, Qin CZ. Efficacy and safety of salvianolate and enoxaparin in the prevention of perioperative deep venous thrombosis in gastrointestinal surgery. Pacing Clin Electrophysiol 2023; 46:425-431. [PMID: 36959770 DOI: 10.1111/pace.14691] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Accepted: 02/18/2023] [Indexed: 03/25/2023]
Abstract
OBJECTIVE In this study, the efficacy and safety of salvianolate were compared with enoxaparin in the prevention of perioperative deep vein thrombosis in gastrointestinal surgery. METHODS From October 2017 to September 2019, 563 patients who underwent gastrointestinal surgery were collected. Based on the inclusion and exclusion criteria, 119 patients were divided into two groups: enoxaparin group (n = 65) and salvianolate group (n = 54). Comparisons were made regarding the outcomes: prothrombin time (PT), prothrombin activity (PTA), international normalized ratio (INR), activated partial thromboplastin time (APTT), fibrinogen (FIB), thrombin time (TT), D-dimer level (D-D), platelet count (PLT), hematokrit (HCT), and incidence of deep vein thrombosis (DVT). RESULTS The main outcomes showed no significance between enoxaparin group and salvianolate group (p > .05). The incidence of DVT in salvianolate group was 1.85%, significantly lower than that in enoxaparin group (12.3%) (p < .05). No serious adverse reactions occurred in the two groups during treatment. CONCLUSION Compared with enoxaparin, salvianolate has an advantage in the prevention of perioperative thrombosis in gastrointestinal surgery with a lower incidence of DVT.
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Affiliation(s)
- Meng-Lin Wu
- Department of Pharmacy, The First Affiliated Hospital of Zhengzhou University, Henan Provincial Key Laboratory of Precision Clinical Pharmacy, Zhengzhou, China
| | - Xin-Ru Wang
- Department of Pharmacy, The First Affiliated Hospital of Zhengzhou University, Henan Provincial Key Laboratory of Precision Clinical Pharmacy, Zhengzhou, China
| | - Wen-da Zhang
- Department of Pharmacy, The First Affiliated Hospital of Zhengzhou University, Henan Provincial Key Laboratory of Precision Clinical Pharmacy, Zhengzhou, China
| | - Jing-Min Zhang
- Department of Pharmacy, The First Affiliated Hospital of Zhengzhou University, Henan Provincial Key Laboratory of Precision Clinical Pharmacy, Zhengzhou, China
| | - Yao-Yao Lu
- Department of Pharmacy, The First Affiliated Hospital of Zhengzhou University, Henan Provincial Key Laboratory of Precision Clinical Pharmacy, Zhengzhou, China
| | - Yu-Na Chai
- Department of Pharmacy, The First Affiliated Hospital of Zhengzhou University, Henan Provincial Key Laboratory of Precision Clinical Pharmacy, Zhengzhou, China
| | - Chong-Zhen Qin
- Department of Pharmacy, The First Affiliated Hospital of Zhengzhou University, Henan Provincial Key Laboratory of Precision Clinical Pharmacy, Zhengzhou, China
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Liu M, Deng W, Lu YY, He YZ, Huang LY, Du H. Surgical treatment of tethered cord syndrome showed promising outcome in young children with short duration. Eur Rev Med Pharmacol Sci 2023; 27:1831-1836. [PMID: 36930477 DOI: 10.26355/eurrev_202303_31545] [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: 03/18/2023]
Abstract
OBJECTIVE Aside from the severity, surgical interventions for the treatment of neurological dysfunctions remain controversial. This study aimed to find factors predicting the benefits of tethered cord syndrome (TCS) surgery. PATIENTS AND METHODS 80 children with TCS were included and followed up for pre- and post-operative factors along with neurophysiological analysis. Outcomes were assessed by univariate and multivariate analysis. RESULTS Surgical treatment not only improved preoperative signs and symptoms in 79% of TCS patients but it showed to be an efficient procedure for the occurrence of future neurological defects. Univariate analysis also revealed that surgical intervention in TCS children (age <1 year) can modulate filar lipoma location and cutaneous abnormalities three months after surgery. Neurophysiological assessment revealed only 5.0% of surgical complications in TCS patients. Two patients had cerebrospinal fluid leakage, and two cases of CNS infection were detected. CONCLUSIONS Surgical intervention is highly recommended for the prevention of neurological deficits in children with TCS. Electrophysiological monitoring revealed rare complications following the surgery.
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Affiliation(s)
- M Liu
- Department of Nerve Electrophysiology, Wuhan Children's Hospital (Wuhan Maternal and Child Healthcare Hospital), Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
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Chen JY, Huang WQ, Li HY, Lu YY, Yao YH, Zhu YP, Liang Y. [A meta-analysis on prevalence of primary angle-closure glaucoma in the middle-aged and elderly chinese population]. Zhonghua Yan Ke Za Zhi 2022; 58:896-906. [PMID: 36348526 DOI: 10.3760/cma.j.cn112142-20220601-00275] [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: 06/16/2023]
Abstract
Objective: To evaluate the prevalence and relevant factors of primary angle-closure glaucoma (PACG) in the middle-aged and elderly (40 years old and above) Chinese population. Methods: Epidemiological literature (of English and/or Chinese language) on prevalence of PACG in China between 2000 and 2022 were retrieved from PubMed, Embase, Web of Science, CNKI, and Wanfang database. Two researchers conducted the process of document retrieval, inclusion, quality assessment and data extraction independently based on inclusion and exclusion criteria. Disagreement was resolved by consensus with a third researcher. The heterogeneity among studies was assessed by using the I2 statistics, and a corresponding model was used for the meta-analysis. Subgroup analysis (gender, age, survey date, place of residence, diagnostic criteria, and temperature zone), as well as sensitivity analysis and publication bias analysis, were conducted. Results: Twenty-three studies were included in this research. Among them, eight were of high-quality and fifteen were of middle-quality. In the past 20 years, the PACG prevalence in middle-aged and elderly (40 years and older) Chinese population was 1.35% (95%CI:1.08% to 1.61%). Chinese women (1.40%) were more likely to have PACG than men (0.96%, P<0.01). The PACG prevalence had a positive correlation with age (P<0.01). The prevalence was similar between urban (1.3%) and rural (1.2%, P=0.61) areas. The PACG prevalence from studies in which the diagnostic criteria of PACG requested the symptom of vision or optic nerve damage (1.1%) was lower than that those without such requirement (1.7%, P<0.01). In mid-temperate zone, the prevalence was higher (1.7%, P=0.02). Conclusions: The PACG prevalence in middle-aged and elderly (40 years old and above) Chinese population was 1.35% in the last 20 years. The prevalence of PACG varies across age, regions, and other variations. This risk is higher in the elderly, women, and people in cold regions among Chinese population.
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Affiliation(s)
- J Y Chen
- Department of Ophthalmology, The First Affiliated Hospital of Fujian Medical University, Fujian Institute of Ophthalmology, Fuzhou 350004, China
| | - W Q Huang
- Eye Hospital of Liuzhou, Liuzhou Red Cross Hospital, Liuzhou 545001, China
| | - H Y Li
- Department of Ophthalmology, The Second Xiangya Hospital of Central South University, Changsha 410000, China
| | - Y Y Lu
- Department of Ophthalmology, Fujian Provincial Hospital, Fuzhou 350001, China
| | - Y H Yao
- Department of Ophthalmology, The First Affiliated Hospital of Fujian Medical University, Fujian Institute of Ophthalmology, Fuzhou 350004, China
| | - Y P Zhu
- Department of Ophthalmology, The First Affiliated Hospital of Fujian Medical University, Fujian Institute of Ophthalmology, Fuzhou 350004, China
| | - Yuanbo Liang
- Eye Hospital of Wenzhou Medical University, National Clinical Research Center for Ocular Diseases, Wenzhou 325027, China
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Lu YY, Zhang YH, Yu LX, Zeng XM, Yang CZ, Ma YL, Zhou LJ, Hu HY, Xie XH, Yu ZK. [Clinical report of hoding cricoarytenoid joint reduction with visual laryngoscope under intravenous anesthesia]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2022; 57:1095-1101. [PMID: 36177564 DOI: 10.3760/cma.j.cn115330-20220221-00076] [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: 06/16/2023]
Abstract
Objective: To investigate the reduction effect of hoding cricoarytenoid joint reduction with visual laryngoscope under intravenous anesthesia. Methods: The therapeutic effects of 40 patients with arytenoid dislocation(AD)treated by closed reduction in the single center from January 2020 to September 2021 were retrospectively analyzed, including 21 males and 19 females, median age 48 years. The etiology, symptoms, preoperative evaluation methods, reduction mode, reduction times, and the recovery of arytenoid cartilage movement and sound after reduction were evaluated and analyzed. Results: All patients had obvious hoarseness and breath sound before treatment. Under stroboscopic laryngoscope or electronic nasopharyngoscope, different degrees of vocal cord movement disorder and poor glottic closure can be seen. There were 28 cases of left dislocation, 9 cases of right dislocation and 3 cases of bilateral dislocation. The etiology of dislocation of cricoarytenoid joint: 25 cases (62.5%) of tracheal intubation under general anesthesia were the most common causes, was as follows by laryngeal trauma, gastroscopy, cough, vomiting and so on. Among them, 28 cases of reduction were initially diagnosed in our department, and 12 cases were diagnosed later after failure of reduction treatment. Of the 40 patients, 6 underwent reduction 24 hours after dislocation; 18 cases from 3 days to 1 month; 7 cases from 1 to 3 months; 6 cases were reset in 3~6 months; Over 6 months in 3 cases. After one reduction, 10 cases (10/40, 25%) recovered normal pronunciation, 14 cases (14/40, 35%) recovered normal pronunciation after two reduction, 10 cases (10/40, 25%) recovered normal pronunciation after three times, 2 cases (2/40, 5%) recovered normal pronunciation after four times, and 1 case (2.5%) recovered normal pronunciation after five times. Thin slice CT scan of larynx and cricoarytenoid joint reconstruction showed the types of AD: subluxation in 37 cases (92.5%) and total dislocation in 3 cases; 28 cases of left dislocation, 9 cases of right dislocation and 3 cases of bilateral dislocation; 29 cases (72.5%) had posterior dislocation and 11 cases (27.5%) had anterior dislocation. All patients were treated by intravenous anesthesia with arytenoid cartilage clamped by cricoarytenoid joint reduction forceps under visual laryngoscope. The curative effect was evaluated by stroboscopic laryngoscope and/or voice analysis at 1-2 weeks after operation. The vocal cord movement returned to normal and the pronunciation was good in 37 cases (92.5%). Conclusions: Hoding cricoarytenoid joint reduction with the vision laryngoscope under intravenous anesthesia is easy to operate and the reduction effect is more stable. It is a effective method for AD.
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Affiliation(s)
- Y Y Lu
- Department of Otorhinolaryngology Head and Neck, BenQ Medical Center, the Affiliated BenQ Hospital of Nanjing Medical University, Nanjing 210019, China
| | - Y H Zhang
- Department of Otorhinolaryngology Head and Neck, BenQ Medical Center, the Affiliated BenQ Hospital of Nanjing Medical University, Nanjing 210019, China
| | - L X Yu
- Department of Anesthesiology, Medical Center, the Affiliated BenQ Hospital of Nanjing Medical University, Nanjing 210019, China
| | - X M Zeng
- Department of Imaging, Medical Center, the Affiliated BenQ Hospital of Nanjing Medical University, Nanjing 210019, China
| | - C Z Yang
- Department of Anesthesiology, Medical Center, the Affiliated BenQ Hospital of Nanjing Medical University, Nanjing 210019, China
| | - Y L Ma
- Department of Otorhinolaryngology Head and Neck, BenQ Medical Center, the Affiliated BenQ Hospital of Nanjing Medical University, Nanjing 210019, China
| | - L J Zhou
- Department of Otorhinolaryngology Head and Neck, BenQ Medical Center, the Affiliated BenQ Hospital of Nanjing Medical University, Nanjing 210019, China
| | - H Y Hu
- Department of Otorhinolaryngology Head and Neck, BenQ Medical Center, the Affiliated BenQ Hospital of Nanjing Medical University, Nanjing 210019, China
| | - X H Xie
- Department of Otorhinolaryngology Head and Neck, BenQ Medical Center, the Affiliated BenQ Hospital of Nanjing Medical University, Nanjing 210019, China
| | - Z K Yu
- Department of Otorhinolaryngology Head and Neck, BenQ Medical Center, the Affiliated BenQ Hospital of Nanjing Medical University, Nanjing 210019, China
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Lu YY, Han Y. [Progress in immune mechanism and treatment of autism spectrum disorder]. Zhonghua Er Ke Za Zhi 2022; 60:482-486. [PMID: 35488649 DOI: 10.3760/cma.j.cn112140-20211231-01098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Affiliation(s)
- Y Y Lu
- Department of Pediatrics, Peking University First Hospital, Beijing 100034, China
| | - Y Han
- Department of Pediatrics, Peking University First Hospital, Beijing 100034, China
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Lv LC, Lu YY, Gao X, He WY, Gao MY, Mo KB, Liu JH. Characterization of NDM-5-producing Enterobacteriaceae isolates from retail grass crap ( Ctenopharyngodon idella) and evidence of blaNDM-5-bearing IncHI2 plasmid transfer between duck and fish. Zool Res 2022; 43:255-264. [PMID: 35194984 PMCID: PMC8920835 DOI: 10.24272/j.issn.2095-8137.2021.426] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
We aimed to characterize NDM-5-producing Enterobacteriaceae from aquatic products in Guangzhou, China. A total of 196 intestinal samples of grass carp collected in 2019 were screened for carbapenemase genes. Characterization of blaNDM-5 positive isolates and plasmids was determined by antimicrobial susceptibility testing, conjugation experiments, Illumina HiSeq, and Nanopore sequencing. One Citrobacter freundii and six Escherichia coli strains recovered from seven intestinal samples were verified as blaNDM-5 carriers (3.57%, 7/196). TheblaNDM-5 genes were located on the IncX3 (n=5), IncHI2 (n=1), or IncHI2-IncF (n=1) plasmids. All blaNDM-5-bearing plasmids were transferred by conjugation at frequencies of ~10−4–10−6. Based on sequence analysis, the IncHI2 plasmid pHNBYF33-1 was similar to other blaNDM-5-carrying IncHI2 plasmids deposited in GenBank from Guangdong ducks. In all IncHI2 plasmids, blaNDM-5 was embedded in a novel transposon, Tn7051 (IS3000-ΔISAba125-IS5-ΔISAba125-blaNDM-5-bleMBL-trpF-tat-∆dct-IS26-∆umuD-∆ISKox3-IS3000), which was identical to the genetic structure surrounding blaNDM-5 found in some IncX3 plasmids. The IncHI2-IncF hybrid plasmid pHNTH9F11-1 was formed by homologous recombination of theblaNDM-5-carrying IncHI2 plasmid and a heavy-metal-resistant IncF plasmid through ∆Tn1721. To the best of our knowledge, this is the first report on the characterization of blaNDM-5-bearing plasmids in fish in China. The IncHI2 plasmid pHNBYF33-1 may be transmitted from ducks, considering the common duck-fish freshwater aquaculture system in Guangdong. Tn7051 is likely responsible for the transfer of blaNDM-5 from IncX3 to IncHI2 plasmids in Enterobacteriaceae, resulting in the expansion of transmission vectors of blaNDM-5.
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Affiliation(s)
- Lu-Chao Lv
- College of Veterinary Medicine, Key Laboratory of Zoonosis of Ministry of Agricultural and Rural Affairs, National Risk Assessment Laboratory for Antimicrobial Resistant of Microorganisms in Animals, Guangdong Provincial Key Laboratory of Veterinary Pharmaceutics Development and Safety Evaluation, South China Agricultural University, Guangzhou, Guangdong 510642, China
| | - Yao-Yao Lu
- College of Veterinary Medicine, Key Laboratory of Zoonosis of Ministry of Agricultural and Rural Affairs, National Risk Assessment Laboratory for Antimicrobial Resistant of Microorganisms in Animals, Guangdong Provincial Key Laboratory of Veterinary Pharmaceutics Development and Safety Evaluation, South China Agricultural University, Guangzhou, Guangdong 510642, China
| | - Xun Gao
- College of Veterinary Medicine, Key Laboratory of Zoonosis of Ministry of Agricultural and Rural Affairs, National Risk Assessment Laboratory for Antimicrobial Resistant of Microorganisms in Animals, Guangdong Provincial Key Laboratory of Veterinary Pharmaceutics Development and Safety Evaluation, South China Agricultural University, Guangzhou, Guangdong 510642, China
| | - Wan-Yun He
- College of Veterinary Medicine, Key Laboratory of Zoonosis of Ministry of Agricultural and Rural Affairs, National Risk Assessment Laboratory for Antimicrobial Resistant of Microorganisms in Animals, Guangdong Provincial Key Laboratory of Veterinary Pharmaceutics Development and Safety Evaluation, South China Agricultural University, Guangzhou, Guangdong 510642, China
| | - Ming-Yi Gao
- College of Veterinary Medicine, Key Laboratory of Zoonosis of Ministry of Agricultural and Rural Affairs, National Risk Assessment Laboratory for Antimicrobial Resistant of Microorganisms in Animals, Guangdong Provincial Key Laboratory of Veterinary Pharmaceutics Development and Safety Evaluation, South China Agricultural University, Guangzhou, Guangdong 510642, China
| | - Kai-Bin Mo
- College of Veterinary Medicine, Key Laboratory of Zoonosis of Ministry of Agricultural and Rural Affairs, National Risk Assessment Laboratory for Antimicrobial Resistant of Microorganisms in Animals, Guangdong Provincial Key Laboratory of Veterinary Pharmaceutics Development and Safety Evaluation, South China Agricultural University, Guangzhou, Guangdong 510642, China
| | - Jian-Hua Liu
- College of Veterinary Medicine, Key Laboratory of Zoonosis of Ministry of Agricultural and Rural Affairs, National Risk Assessment Laboratory for Antimicrobial Resistant of Microorganisms in Animals, Guangdong Provincial Key Laboratory of Veterinary Pharmaceutics Development and Safety Evaluation, South China Agricultural University, Guangzhou, Guangdong 510642, China
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, Guangdong 510642, China. E-mail:
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Lu YY, Xin JJ, Ding WC, Liang X, Jiang J, Shi DY, Wang YF. [Expression and diagnostic value of macrophage inflammatory protein-3α in patients with hepatitis B-related acute-on-chronic liver failure]. Zhonghua Gan Zang Bing Za Zhi 2021; 29:1156-1163. [PMID: 35045630 DOI: 10.3760/cma.j.cn501113-20210809-00386] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Objective: To screen serum protein markers and evaluate their diagnostic application value in hepatitis B-related acute-on-chronic liver failure (HBV-ACLF). Methods: Serum samples of patients with HBV-ACLF, chronic hepatitis B (CHB) and normal healthy volunteers (n = 5/group) were determined by cytokine antibody chip in line with the Chinese Diagnostic Standards Study for HBV-ACLF (COSSH-ACLF) cohort. The differentially expressed proteins significance were identified by microarray analysis and prediction. The preliminary serological markers of HBV-ACLF were screened for diagnosis. The potential markers were determined by enzyme-linked immunosorbent assay (ELISA), area under the receiver operating characteristic curve (AUROC) analysis and liver tissue immunohistochemistry for the diagnosis of HBV-ACLF. Student t-test or Mann-Whitney U test were used to compare the continuous measurement data between the two groups, and analysis of variance and Kruskal-Wallis test were used to compare the continuous measurement data between multiple groups. Results: Cytokine antibody chip preliminary screening results showed that the expression levels of these six cytokines, namely, macrophage inflammatory protein 3α (MIP-3α), hepatocyte growth factor, E-selectin, osteopontin, growth differentiation factor 15 and carcinoembryonic antigen-related cellular adhesion molecule 1 were significantly increased in the HBV-ACLF group. Among them, the expression level of MIP-3α was significantly higher in the HBV-ACLF group (99.6 times higher than CHB group and 146.9 times higher than healthy volunteers' group, respectively, P < 0.0001) as validated by serum ELISA in 132 HBV-ACLF cases, 91 CHB cases and 72 healthy volunteers. AUROC analysis showed that the high expression of MIP-3α could be used as a marker to distinguish patients with HBV-ACLF from CHB. The AUROC was 0.995 (95% CI: 0.990 ~ 1.000), with sensitivity and specificity of 95.5% and. 98.9%, respectively. Immunohistochemistry showed that MIP-3α was positively expressed in HBV-ACLF-derived liver tissues, and negatively expressed in CHB-derived liver and normal liver tissues. Conclusion: Serum MIP-3α level is closely related to the pathological characteristics of HBV-ACLF. Therefore, it may be used as a potential serological marker for the diagnosis of HBV-ACLF.
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Affiliation(s)
- Y Y Lu
- Cancer Institute of Integrative Medicine, Key Laboratory of Cancer Prevention and Therapy Combining Traditional Chinese and Western Medicine, Zhejiang Academy of Traditional Chinese Medicine, Tongde Hospital of Zhejiang Province, Hangzhou 310012, China
| | - J J Xin
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, Collaborative National Clinical Research Center for Infectious Diseases, the First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310013, China
| | - W C Ding
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, Collaborative National Clinical Research Center for Infectious Diseases, the First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310013, China
| | - X Liang
- Precision Medicine Center, Taizhou Central Hospital (Taizhou University Hospital), Taizhou 318000, China
| | - J Jiang
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, Collaborative National Clinical Research Center for Infectious Diseases, the First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310013, China
| | - D Y Shi
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, Collaborative National Clinical Research Center for Infectious Diseases, the First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310013, China
| | - Y F Wang
- Cancer Institute of Integrative Medicine, Key Laboratory of Cancer Prevention and Therapy Combining Traditional Chinese and Western Medicine, Zhejiang Academy of Traditional Chinese Medicine, Tongde Hospital of Zhejiang Province, Hangzhou 310012, China
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Yang L, Wang YW, Lu YY, Li B, Chen KP, Li CJ. Genome-wide identification and characterization of long non-coding RNAs in Tribolium castaneum. Insect Sci 2021; 28:1262-1276. [PMID: 32978885 DOI: 10.1111/1744-7917.12867] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [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: 03/24/2020] [Revised: 07/19/2020] [Accepted: 08/02/2020] [Indexed: 06/11/2023]
Abstract
Long non-coding RNAs (lncRNAs) are poorly understood in insects. In this study, we performed genome-wide analysis of lncRNAs in Tribolium castaneum by RNA-seq. In total, 4516 lncRNA transcripts corresponding to 3917 genes were identified from late embryos, early larvae, late larvae, early pupae, late pupae and early adults of T. castaneum, including 3152 novel lncRNAs and 1364 known lncRNAs. These lncRNAs have few exons and transcripts, and are short in length. During development, they exhibited nine different expression patterns. Functionally, they can act either by targeting messenger RNAs (1813 lncRNAs) and lncRNAs (45 lncRNAs) or as micro RNA (miRNA) precursors (46 lncRNAs). LncRNAs were observed to target the metabolic enzymes of glycolysis, TCA cycle and amino acids, demonstrating that lncRNAs control metabolism by regulating metabolic enzymes. Moreover, lncRNAs were shown to participate in cell differentiation and development via their targets. As miRNA precursors, lncRNAs could participate in the ecdysone signaling pathway. This study provides comprehensive information for lncRNAs of T. castaneum, and will promote functional analysis and target identification of lncRNAs in the insect.
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Affiliation(s)
- Liu Yang
- School of Life Sciences, Jiangsu University, Zhenjiang, Jiangsu Province, 212013, China
| | - You-Wei Wang
- School of Life Sciences, Jiangsu University, Zhenjiang, Jiangsu Province, 212013, China
| | - Yao-Yao Lu
- Jiangsu Key Laboratory for Biodiversity and Biotechnology, College of Life Sciences, Nanjing Normal University, Nanjing, 210023, China
| | - Bin Li
- Jiangsu Key Laboratory for Biodiversity and Biotechnology, College of Life Sciences, Nanjing Normal University, Nanjing, 210023, China
| | - Ke-Ping Chen
- School of Life Sciences, Jiangsu University, Zhenjiang, Jiangsu Province, 212013, China
| | - Cheng-Jun Li
- School of Life Sciences, Jiangsu University, Zhenjiang, Jiangsu Province, 212013, China
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Xue S, Zeng YL, Bi XL, Lu YY, Zhang DY, Zhang LL, Han X, Yang J, Fu XY, Liu DY. [PD-1/PD-L1 expression and its interaction with interferon-γ in Toxoplasma gondii-infected mice at middle and late pregnancy]. Zhongguo Xue Xi Chong Bing Fang Zhi Za Zhi 2021; 33:177-187. [PMID: 34008365 DOI: 10.16250/j.32.1374.2020317] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
OBJECTIVE To explore the dynamic expression of programmed cell death-1 (PD-1) and its ligand PD-L1 at the maternal-fetal interface of mice post-infection with Toxoplasma gondii at early pregnancy and examine its interaction with interferon-γ (IFN-γ). METHODS A total of 20 mice at day 0 of pregnancy were randomly assigned into 4 groups, including the 12-day pregnancy control group (12 dpn group), 12-day pregnancy and infection group (12 dpi group), 18-day pregnancy control group (18 dpn group) and 18-day pregnancy and infection group (18 dpi group), respectively. On the 6th day of the pregnancy, mice in the 12 dpi and 18 dpi groups were injected intraperitoneally with 150 tachyzoites of the T. gondii PRU strain, while mice in the 12 dpn and 18 dpn groups were injected with the same volume of PBS. All mice in the four groups were sacrificed on 12th and 18th day of the pregnancy, and the number of placenta and fetus was counted and the weight of placenta and fetus was measured. Then, the placental and uterine tissues of the pregnant mice in each group were sampled for pathological examinations. The mRNA expression of PD-1, PD-L1, T. gondii surface antigen SAG-1 and IFN-γ genes was quantified using a quantitative real-time PCR (qPCR) assay, and the correlation between PD-1 and IFN-γ expression was examined. In addition, the 12 dpn group, 12 dpi group, 18 dpn group, 18 dpi group, PBS negative control of the 12 pdi group and PBS negative control of the 18 dpi group were assigned, and the PD-1 expression was determined in the uterine and placenta tissues of the pregnant mice. RESULTS Adverse pregnant outcomes were seen in mice in the 12 dpi and 18 dpi groups, including placental dysplasia and fetal maldevelopment, and the placental weights and fetal body weights were significantly lower in mice in the 12 dpi and 18 dpi groups than those in the 12 dpn and 18 dpn groups (t = 5.52, 11.44, 12.63 and 11.67, all P < 0.01). The histopathological examinations showed that the decidua and junctional regions of the placental tissues were loosely connected in the 12 dpi and 18 dpi groups, and a large number of inflammatory cells infiltration and congestion were seen in the placental and uterine tissues. qPCR assay detected significant differences in PD-1, PD-L1, IFN-γ and SAG-1 expression in the placental and uterine tissues among the 12 dpn, 12 dpi, 18 dpn and 18 dpi groups (F = 22.48, 51.23, 9.61, 47.49, 16.08, 21.52, 28.66 and 238.90, all P < 0.05), and the PD-1, PD - L1, IFN - γ and SAG - 1 expression was all significantly higher in the placental and uterine tissues of mice in the 12 dpi group than in the 12 dpn group (all P values < 0.05). The PD-1 and PD-L1 expression was significantly lower in the placental tissues of mice in the 18 dpi group than in the 18 dpn group (all P values < 0.05), and the IFN-γ and SAG-1 expression was significantly higher in the placental and uterine tissues of mice in the 18 dpi group than in the 18 dpn group (all P values < 0.05), while the PD-1 and PD-L1 expression was significantly lower in the placental and uterine tissues of mice in the 18 dpi group than in the 12 dpi group (all P values < 0.05). Immunohistochemical staining showed PD-1 expression in the inflammatory cells of the placental tissues of mice in the 12 dpi group, and no apparent PD-1 expression in the 18 dpi group, while strongly positive PD-1 expression was found in the uterine epithelium of mice in the 12 dpi group, and mildly strong expression was in the 18 dpi group. In addition, the IFN-γ mRNA expression was positively correlated with the PD-1 mRNA expression in placental (rs = 0.99, P < 0.01) and uterine tissues of mice in the 12 dpi group (rs = 0.97, P < 0.01) and in placental (rs = 0.82, P < 0.01) and uterine tissues of mice in the 18 dpi group (rs = 0.81, P < 0.01). CONCLUSIONS Following T. gondii infection at early pregnancy, the PD-1 and PD-L1 expression shows a remarkable rise at middle pregnancy and a reduction at late pregnancy in placental and uterine tissues of mice, which appears the same tendency with IFN-γ expression during the same time period, and PD-1 expression positively correlates with IFN-γ expression. The dynamic expression of PD-1 and PD-L1 on the maternal-fetal interface of mice may be mutually mediated by IFN-γ induced by T. gondii infection.
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Affiliation(s)
- S Xue
- Department of Parasitology, School of Preclinical Medicine, Guangxi Medical University, Nanning 530021, China
| | - Y L Zeng
- Department of Parasitology, School of Preclinical Medicine, Guangxi Medical University, Nanning 530021, China
| | - X L Bi
- Department of Parasitology, School of Preclinical Medicine, Guangxi Medical University, Nanning 530021, China
| | - Y Y Lu
- Department of Parasitology, School of Preclinical Medicine, Guangxi Medical University, Nanning 530021, China
| | - D Y Zhang
- Department of Parasitology, School of Preclinical Medicine, Guangxi Medical University, Nanning 530021, China
| | - L L Zhang
- Department of Parasitology, School of Preclinical Medicine, Guangxi Medical University, Nanning 530021, China
| | - X Han
- Department of Parasitology, School of Preclinical Medicine, Guangxi Medical University, Nanning 530021, China
| | - J Yang
- Department of Parasitology, School of Preclinical Medicine, Guangxi Medical University, Nanning 530021, China
| | - X Y Fu
- Department of Parasitology, School of Preclinical Medicine, Guangxi Medical University, Nanning 530021, China
| | - D Y Liu
- Department of Parasitology, School of Preclinical Medicine, Guangxi Medical University, Nanning 530021, China
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Lu YY, Pei P, Zhang LL, Xue S, Han X, Bi XL, Zhao HY, Liu DY, Fu XY. [Study on the mechanisms of the intestinal tight-junction destruction caused by Blastocystis hominis infection in rats]. Zhongguo Xue Xi Chong Bing Fang Zhi Za Zhi 2021; 33:28-34. [PMID: 33660471 DOI: 10.16250/j.32.1374.2020295] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
OBJECTIVE To explore the mechanism of the intestinal barrier damage caused by Blastocystis hominis infections in rats. METHODS Thirty SD rats were randomly divided into the control group, and the 1-, 3-, 6- and 9-week-infection groups, of 6 rats in each group. Rats in each infection group were orally infected with B. hominis trophozoites at a density of 2 × 108 parasites per rat, and the control group was given an equal volume of phosphate buffered saline solution. The 7-hour urine samples were collected 1, 3, 6 and 9 weeks post-infection for the measurement of the intestinal permeability. Then, rats were sacrificed using the cervical dislocation method, and the cecum specimens were collected for the detection of the intestinal epithelial cell permeability. The expression of tight junction-related Occludin and Claudin - 1 genes and apoptosis-related Bcl - 2 and Bax genes was quantified in cecum epithelial cells using the real-time fluorescent quantitative PCR (qPCR) assay, and cell apoptosis was detected in the rat cecum using the TdT-mediated dUTP nick-end labeling (TUNEL) assay. RESULTS The median urinary lactolose to mannitol ratios were 0.29, 0.72, 0.44, 0.46 and 0.38 in the control group, and the 1-, 3-, 6- and 9-week-infection groups, respectively, and the difference was statistically significant (H = 12.09, P < 0.05). B. hominis invasion and epithelial injury were observed in intestinal epithelial cells of rats infected with B. hominis, and transmission electron microscopy displayed the destruction of tight junctions between intestinal epithelial cells. The relative expression of Occludin, Claudin-1, Bcl-2 and Bax genes was 1.04, 0.62, 0.71, 0.68 and 0.96; 1.03, 0.61, 0.63, 0.76 and 0.86; 1.08, 0.70, 0.75, 0.74 and 1.03; and 1.00, 1.57, 1.33, 1.35 and 1.10 in the control group and the 1-, 3-, 6- and 9-week-infection groups, respectively, and all differences were statistically significant (F = 2.86, 2.85, 3.37 and 4.45, all P values < 0.05). The median number of positive staining cells were 1.00, 13.00, 9.00, 3.50 and 1.00 in rat cecum specimens in the control group, and the 1-, 3-, 6- and 9-week-infection groups, respectively, and the difference was statistically significant (H = 22.95, P < 0.01). CONCLUSIONS B. hominis infection may cause an increase in the rat intestinal permeability through triggering the apoptosis of intestinal epithelial cells to destroy the tight junction between intestinal epithelial cells, thereby destroying the intestinal barrier function.
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Affiliation(s)
- Y Y Lu
- Department of Parasitology, School of Basic Medical Sciences, Guangxi Medical University, Nanning 530021, China.,Co-first authors
| | - P Pei
- Zhuhai People's Hospital, Guangdong Province, China.,Co-first authors
| | - L L Zhang
- Department of Parasitology, School of Basic Medical Sciences, Guangxi Medical University, Nanning 530021, China
| | - S Xue
- Department of Parasitology, School of Basic Medical Sciences, Guangxi Medical University, Nanning 530021, China
| | - X Han
- Department of Parasitology, School of Basic Medical Sciences, Guangxi Medical University, Nanning 530021, China
| | - X L Bi
- Department of Parasitology, School of Basic Medical Sciences, Guangxi Medical University, Nanning 530021, China
| | - H Y Zhao
- The People's Hospital of Guangxi Zhuang Autonomous Region, China
| | - D Y Liu
- Department of Parasitology, School of Basic Medical Sciences, Guangxi Medical University, Nanning 530021, China
| | - X Y Fu
- Department of Parasitology, School of Basic Medical Sciences, Guangxi Medical University, Nanning 530021, China
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Sun J, Zhang DY, Wang J, Lu YY. [Research progress of neural precursor cells-expressed developmentally down-regulated protein-8 in liver diseases]. Zhonghua Gan Zang Bing Za Zhi 2021; 29:188-192. [PMID: 33685092 DOI: 10.3760/cma.j.cn501113-20190918-00341] [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
Neural precursor cells-expressed developmentally down-regulated protein-8 (NEDD8) is one of the important members of the ubiquitin family, which plays an important role in maintaining cell stability, cell cycle regulation, signal transduction, transcription, and translation, DNA repair, and tumorigenesis through covalently bound substrates (also known as neddylation modification). In recent years, studies have found that the dysfunction of NEDD8 and its related enzymes is common in liver diseases, and is widely involved in the biological processes of hepatitis, liver fibrosis, proliferation, invasion, apoptosis and autophagy of liver cancer cells. This article focuses on the research progress of NEDD8 in liver diseases.
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Affiliation(s)
- J Sun
- Comprehensive Liver Cancer Center, 5th Medical Center of Chinese PLA General Hospital, Beijing 100039, China
| | - D Y Zhang
- Comprehensive Liver Cancer Center, 5th Medical Center of Chinese PLA General Hospital, Beijing 100039, China
| | - J Wang
- Institute of Pharmacology and Toxicology, Academy of Military Medical Sciences, Academy of Military Sciences, Beijing 100850, China
| | - Y Y Lu
- Comprehensive Liver Cancer Center, 5th Medical Center of Chinese PLA General Hospital, Beijing 100039, China
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Chen Y, Liu L, Xing YY, Li Q, Zhao GH, Lu YY, Yang JJ. Down-regulation of miR-365 suppresses cerebral ischemia injury by targeting IGF1R. J BIOL REG HOMEOS AG 2020; 34:1857-1862. [PMID: 33103413 DOI: 10.23812/20-321-l] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [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)
- Y Chen
- Department of Geriatrics, Shandong Provincial Third Hospital, Jinan, China
| | - L Liu
- Department of Neurology, Shandong Provincial Third Hospital, Jinan, China
| | - Y Y Xing
- Department of Neurology, Shandong Provincial Third Hospital, Jinan, China
| | - Q Li
- Department of Neurology, Shandong Provincial Third Hospital, Jinan, China
| | - G H Zhao
- Department of Neurology, Shandong Provincial Third Hospital, Jinan, China
| | - Y Y Lu
- Department of Neurology, Shandong Provincial Third Hospital, Jinan, China
| | - J J Yang
- Department of General practice, Shandong Provincial Third Hospital, Jinan, China
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Lu YY, Li J, Wang HX, Che CW, Shi DM. [Treatment of giant rhinolith by acid solution: a case report]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2020; 55:695-697. [PMID: 32668881 DOI: 10.3760/cma.j.cn115330-20191126-00726] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Y Y Lu
- Department of Otorhinolaryngology Head and Neck Surgery, Chaoyang Hospital, Affiliated to the Capital Medical University, Beijing 100043, China
| | - J Li
- Department of Otorhinolaryngology Head and Neck Surgery, Chaoyang Hospital, Affiliated to the Capital Medical University, Beijing 100043, China
| | - H X Wang
- Department of Otorhinolaryngology Head and Neck Surgery, Chaoyang Hospital, Affiliated to the Capital Medical University, Beijing 100043, China
| | - C W Che
- Department of Otorhinolaryngology Head and Neck Surgery, Chaoyang Hospital, Affiliated to the Capital Medical University, Beijing 100043, China
| | - D M Shi
- Department of Otorhinolaryngology Head and Neck Surgery, Chaoyang Hospital, Affiliated to the Capital Medical University, Beijing 100043, China
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Yan H, Aizhan R, Lu YY, Li X, Wang X, Yi YL, Shan YY, Liu BF, Zhou Y, Lü X. A novel bacteriocin BM1029: physicochemical characterization, antibacterial modes and application. J Appl Microbiol 2020; 130:755-768. [PMID: 32749036 DOI: 10.1111/jam.14809] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2019] [Revised: 06/15/2020] [Accepted: 07/22/2020] [Indexed: 12/28/2022]
Abstract
AIM Bacteriocins with antimicrobial activity are considered as potential natural bio-preservatives to control the growth of food spoilage bacteria. The aim of this work was to characterize a novel bacteriocin BM1029 discovered from Lactobacillus crustorum MN047 and evaluate its antibacterial mechanism. METHODS AND RESULTS Bacteriocin BM1029 was purified by cation-exchange chromatography and reversed-phase chromatography. Antibacterial activity assay showed that BM1029 is antagonistic against both Gram-positive and Gram-negative bacteria. Furthermore, it was found that BM1029 showed low haemolysis with high stability to the pretreatment with different temperatures, pH and surfactants. Moreover electron microscopy and flow cytometry suggested that BM1029 inhibit indicator strains by damaging the cell envelope integrity. Cell cycle assay suggested that BM1029 arrested cell cycle in R-phase. CONCLUSION The novel bacteriocin BM1029 showed high bactericidal activity against Escherichia coli and Staphylococcus aureus through a cell envelope-associated mechanism. SIGNIFICANCE AND IMPACT OF THE STUDY Application of BM1029 inhibited the growth of indicator strains on beef meat storage at 4°C suggesting that this bacteriocin is promising to be used as a novel preservative in food processing and preservation.
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Affiliation(s)
- H Yan
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi Province, China
| | - R Aizhan
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi Province, China
| | - Y Y Lu
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi Province, China
| | - X Li
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi Province, China
| | - X Wang
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi Province, China
| | - Y L Yi
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi Province, China
| | - Y Y Shan
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi Province, China
| | - B F Liu
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi Province, China
| | - Y Zhou
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi Province, China
| | - X Lü
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi Province, China
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Xue S, Zhang YP, Lu YY, Li F, Liu FF, Li TT, Liu YY, Wang JB. [Salvage therapy of haploidentical hematopoietic stem cell transplantation for one hepatosplenic αβ T-cell lymphoma: a case report]. Zhonghua Xue Ye Xue Za Zhi 2020; 40:786. [PMID: 31648487 PMCID: PMC7342436 DOI: 10.3760/cma.j.issn.0253-2727.2019.09.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 12/04/2022]
Affiliation(s)
- S Xue
- Department of Hematology, Aerospace Central Hospital, Beijing 100049, China
| | - Y P Zhang
- Department of Hematology, Aerospace Central Hospital, Beijing 100049, China
| | - Y Y Lu
- Department of Pathology, Aerospace Central Hospital, Beijing 100049, China
| | - F Li
- Department of Pathology, Aerospace Central Hospital, Beijing 100049, China
| | - F F Liu
- Department of Hematology, Aerospace Central Hospital, Beijing 100049, China
| | - T T Li
- Department of Hematology, Aerospace Central Hospital, Beijing 100049, China
| | - Y Y Liu
- Department of Hematology, Aerospace Central Hospital, Beijing 100049, China
| | - J B Wang
- Department of Hematology, Aerospace Central Hospital, Beijing 100049, China
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Abstract
Liver cancer is one of the most common malignant tumors in China, ranking fifth in malignant tumors and the third in tumor-related deaths. As a membrane-related protein, the asymmetric distribution of cell fate determinant Numb plays a key role in cell differentiation. Research reports that Numb may be closely associated to the occurrence and development of tumors. Recently, scholars have gradually valued its important role in liver cancer. This article briefly reviews the structure of Numb molecule, relationship between Numb and tumorigenesis, the molecular mechanism of Numb-regulated tumors, and the role of Numb in the development of liver cancer.
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Affiliation(s)
- X R Yang
- Comprehensive Liver Cancer Center, 302 Military Hospital of Chinese Army, Beijing 100039, China
| | - J Sun
- Comprehensive Liver Cancer Center, 302 Military Hospital of Chinese Army, Beijing 100039, China
| | - J Wang
- Beijing Institute of Basic Medical Sciences, Beijing 100850, China
| | - Y Y Lu
- Comprehensive Liver Cancer Center, 302 Military Hospital of Chinese Army, Beijing 100039, China
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21
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Dong JK, Du GF, Wang J, Zhao XK, Wu J, Lu YY, Cheng ML. [Study on mechanism for dasatinib inhibiting PDGFR/Bcr-Abl signaling pathway in hepatic stellate cells mediated hepatic fibrosis]. Zhonghua Gan Zang Bing Za Zhi 2018; 26:855-857. [PMID: 30616322 DOI: 10.3760/cma.j.issn.1007-3418.2018.11.010] [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] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- J K Dong
- Guizhou Medical University & Affiliated Hospital of Guizhou Medical University, Guiyang 550004, China
| | - G F Du
- 302 Military Hospital of China, Beijing 100069, China
| | - J Wang
- Academy of Military Medical Sciences, Beijing 100850, China
| | - X K Zhao
- Guizhou Medical University & Affiliated Hospital of Guizhou Medical University, Guiyang 550004, China
| | - J Wu
- Guizhou Medical University & Affiliated Hospital of Guizhou Medical University, Guiyang 550004, China
| | - Y Y Lu
- 302 Military Hospital of China, Beijing 100069, China; Guizhou Medical University, Guiyang 550004, China
| | - M L Cheng
- Guizhou Medical University & Affiliated Hospital of Guizhou Medical University, Guiyang 550004, China
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22
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Yu SK, Xu YW, Zhang Y, Blacher J, Lu YY, Xiong J, Chi C, Teliewubai J. P4779Comparison of ankle-brachial index and upstroke time per cardiac cycle in association with target organ damage in elderly Chinese: the Northern Shanghai Study. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy563.p4779] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- S K Yu
- Shanghai Tenth People's Hospital, Tongji University School of Medicine, Cardiology, Shanghai, China People's Republic of
| | - Y W Xu
- Shanghai Tenth People's Hospital, Tongji University School of Medicine, Cardiology, Shanghai, China People's Republic of
| | - Y Zhang
- Shanghai Tenth People's Hospital, Tongji University School of Medicine, Cardiology, Shanghai, China People's Republic of
| | - J Blacher
- Hospital Hotel-Dieu, Diagnosis and Therapeutic Center, Paris, France
| | - Y Y Lu
- Shanghai Tenth People's Hospital, Tongji University School of Medicine, Cardiology, Shanghai, China People's Republic of
| | - J Xiong
- Shanghai Tenth People's Hospital, Tongji University School of Medicine, Cardiology, Shanghai, China People's Republic of
| | - C Chi
- Shanghai Tenth People's Hospital, Tongji University School of Medicine, Cardiology, Shanghai, China People's Republic of
| | - J Teliewubai
- Shanghai Tenth People's Hospital, Tongji University School of Medicine, Cardiology, Shanghai, China People's Republic of
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23
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Chi C, Fan XM, Zhou YW, Lu YY, Teliewubai J, Xiong J, Yu SK, Ji HW, Zhang Y, Xu YW. P1512Comparison of arterial stiffness parameters in hypertensive and type-2 diabetic patients: the Northern Shanghai Study. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy565.p1512] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- C Chi
- Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China People's Republic of
| | - X M Fan
- Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China People's Republic of
| | - Y W Zhou
- Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China People's Republic of
| | - Y Y Lu
- Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China People's Republic of
| | - J Teliewubai
- Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China People's Republic of
| | - J Xiong
- Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China People's Republic of
| | - S K Yu
- Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China People's Republic of
| | - H W Ji
- Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China People's Republic of
| | - Y Zhang
- Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China People's Republic of
| | - Y W Xu
- Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China People's Republic of
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Lu YY, Gao JH, Zhao C, Wen SL, Tang CW, Wang YF. Cyclooxygenase-2 up-regulates hepatic somatostatin receptor 2 expression. Sci Rep 2018; 8:11033. [PMID: 30038293 PMCID: PMC6056476 DOI: 10.1038/s41598-018-29349-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2018] [Accepted: 07/09/2018] [Indexed: 02/05/2023] Open
Abstract
Somatostatin and its analogues, which function by binding to somatostatin receptors (SSTRs) 1-5, play a protective role in liver cirrhosis. Hepatic SSTR-2 expression is up-regulated in subjects with liver cirrhosis. However, little is known about the mechanisms underlying this process. In the present study, we observed the up-regulation of hepatic SSTR-2 expression in thioacetamide (TAA)-induced cirrhotic rats and further showed that cyclooxygenase-2 (COX-2) might play a role in this process via the protein kinase C (PKC)-cAMP response element binding protein (CREB) signaling pathway. In vivo, the up-regulated SSTR-2 in liver cirrhosis was inhibited by the addition of a selective COX-2 inhibitor, such as celecoxib. In vitro, the up-regulation of COX-2 by either transfection with COX-2 plasmids or treatment with TAA increased levels of SSTR-2 and phosphorylated CREB (p-CREB) in the human hepatocyte cell line L02. Furthermore, the increase in SSTR-2 expression was inhibited by the addition of celecoxib and a PKC inhibitor. Moreover, for comparable DNA methylation levels in the region upstream of the hepatic SSTR-2 gene in normal and cirrhotic livers, DNA methylation may not contribute to the up-regulation of SSTR-2 expression in cirrhotic livers. In conclusion, the up-regulation of hepatic SSTR-2 might be induced by COX-2 via the PKC-CREB signaling pathway but is probably not induced by DNA methylation.
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Affiliation(s)
- Yao-Yao Lu
- Division of Peptides Related with Human Diseases, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, China.,Department of Gastroenterology, The First Affiliated Hospital of Chengdu Medical College, Chengdu, China
| | - Jin-Hang Gao
- Division of Peptides Related with Human Diseases, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, China.,Department of Gastroenterology, West China Hospital, Sichuan University, Chengdu, China.,Division of Digestive Diseases, West China Hospital, Sichuan University, Chengdu, China
| | - Chong Zhao
- Division of Peptides Related with Human Diseases, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, China.,Division of Digestive Diseases, West China Hospital, Sichuan University, Chengdu, China
| | - Shi-Lei Wen
- Department of Human Anatomy, Academy of Preclinical and Forensic Medicine, West China Medicine College, Sichuan University, Chengdu, China
| | - Cheng-Wei Tang
- Division of Peptides Related with Human Diseases, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, China. .,Department of Gastroenterology, West China Hospital, Sichuan University, Chengdu, China. .,Division of Digestive Diseases, West China Hospital, Sichuan University, Chengdu, China.
| | - Yu-Fang Wang
- Department of Gastroenterology, West China Hospital, Sichuan University, Chengdu, China.
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25
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Lu YY, Huang H, Mao WL, Liu RH, Hu MJ, Shao LX, Hu MP, Li J. [A concentration-response observation of hydromorphone combined with ropivacaine in labor analgesia]. Zhonghua Yi Xue Za Zhi 2017; 97:3297-3300. [PMID: 29141373 DOI: 10.3760/cma.j.issn.0376-2491.2017.42.005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the median effective dose (ED(50)) of hydromorphone and the appropriate concentration of ropivacaine combined with hydromorphone in epidural labor analgesia. Methods: One hundred and forty nulliparous women undergoing labor selected for delivery with epidural analgesia were enrolled in our hospital from January to June 2016. The first of top 50 women received 0.12% ropivacaine plus 20 μg/ml hydromorphone complex solution, then sequential women were used the modified sequential method to determine the ED(50) and ED(95) of hydromorphone. The other 90 women were randomly divided and receieved 0.08% ropivacaine and 15 μg/ml hydromorphone(H1 group), 0.10% ropivacaine and 15 μg/ml hydromorphone (H2 group), 0.12% ropivacaine and 15 μg/ml hydromorphone (group H3) respectively for epidural labor analgesia. In the course of labor, block levels of epidural analgesia, the Bromage scores, analgesia scores and fetal heart rate-uterine concraction were monitored. In addition, onset time of anesthesia, labor time, mode of delivery, cases of increased oxytocin using, neonatal Apgar score, incidence of nausea and vomiting, itching and fetal heart reduction were recorded. Results: The ED(50) and ED(95) values of hydromorphone were 10.49 (95% CI: 8.89-11.79) and 15.15 (95% CI: 13.25-22.25) μg/ml respectively. The onset time in group H1 was significantly longer than those in group H2 and H3((14.23±3.82) , ( 11.32±2.16), (10.83±2.56)min, respectively), the difference was statistically significant (t=5.854, 6.212, all P<0.05). Analgesic VAS score at 30, 60 and 90 min time points in H1 group was significantly higher than that in H2 group and H3 group (all P<0.05). VAS score at withdrawal in H1 group was significantly higher than that in group H3 ( (3.25±0.75) vs (0.27±0.12) ), the difference was statistically significant ( t=9.314, P<0.05). VAS scores at the fourth, fifth, sixth contractions after analgesia in H1 group were significantly higher than those in H2 and H3 groups (all P<0.05). The incidence of motor nerve block in group H3 was higher than that in group H1 and group H2 (26.67%, 6.66%, 3.33%, respectively), the difference was statistically significant (χ(2)=6.413, 4.320, all P<0.05). Conclusions: 0.10% ropivacaine combined with 15 μg/ml hydromorphone has a good analgesic effect, slight motor block, high safety and worthy clinical application for labor analgesia.
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Affiliation(s)
- Y Y Lu
- Department of Anesthesiology, Second Affiliated Hospital & Yuying Children's Hospital, Wenzhou Medical University, Wenzhou 325027, China
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26
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Cheng YB, Lu YY, Chang FR, Wang SW, Chen CY, Wu YC. Anti-Angiogenic diketopiperazines from the Endophytic Fungus Diaporthe arecae Associated with Mangrove Kandelia obovate. Am J Transl Res 2017. [DOI: 10.1055/s-0037-1608090] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- YB Cheng
- Graduate Institute of Natural Products, College of Pharmacy, Kaohsiung Medical University, Kaohsiung, Taiwan
- Research Center for Natural Products & Drug Development, Kaohsiung Medical University, Kaohsiung, Taiwan
- Center for Infectious Disease and Cancer Research, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - YY Lu
- Graduate Institute of Natural Products, College of Pharmacy, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - FR Chang
- Graduate Institute of Natural Products, College of Pharmacy, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - SW Wang
- Department of Medicine, Mackay Medical College, New Taipei City, Taiwan
| | - CY Chen
- Department of Physical Therapy, Tzu-Hui Institute of Technology, Pingtung, Taiwan
| | - YC Wu
- Graduate Institute of Natural Products, College of Pharmacy, Kaohsiung Medical University, Kaohsiung, Taiwan
- Research Center for Natural Products & Drug Development, Kaohsiung Medical University, Kaohsiung, Taiwan
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Yang YR, Feng YJ, Lu YY, Dong H, Li TY, Jiang YB, Zhu XQ, Zhang LX. Antibody Detection, Isolation, Genotyping, and Virulence of Toxoplasma gondii in Captive Felids from China. Front Microbiol 2017; 8:1414. [PMID: 28791002 PMCID: PMC5524774 DOI: 10.3389/fmicb.2017.01414] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2017] [Accepted: 07/11/2017] [Indexed: 02/02/2023] Open
Abstract
The felids are the only definitive hosts of Toxoplasma gondii, which could excrete oocysts into the environment and provide an infection source for toxoplasmosis in various warm-blooded animal species, particularly the captive felids that live close to human communities. The infection rate of the captive felids is a perfect standard in detecting the presence of Toxoplasma gondii oocysts in the environment. In this study, sera or tissue samples from zoo (1 young tiger, 2 adult tigers, 6 young lions), farm (10 masked palm civets), and pet hospital (28 cats) from Henan Province (China) were collected. The sera (n = 47) were tested for immunoglobulin G (IgG) antibodies against T. gondii by using modified agglutination test (MAT), whereas the hearts tissue (n = 40) were bioassayed in mice to isolate T. gondii strains. The genotype was distinguished by using PCR-RFLP of 10 loci (SAG1, SAG2, SAG3, GRA6, BTUB, L358, c22-8, PK1, c29-2, and Apico). The detection rate for the T. gondii antibody in captive felids was 21.3% (10/47). One viable T. gondii strain (TgCatCHn4) was obtained from a cat heart tissue, and its genotype was ToxoDB#9. The oocysts of ToxoDB#9 were collected from a T. gondii-free cat. The virulence of TgCatCHn4 was low and no cysts were detected in the brain of mice at 60 days post-inoculation. The finding of the present study suggested a widespread exposure of T. gondii for felids in Henan Province of central China, particularly those from the zoological gardens and homes. ToxoDB#9 was the predominant strain in China. Preventive measures against T. gondii oocyst contamination of various components of the environment should thus be implemented, including providing pre-frozen meat, well-cooked cat food, cleaned fruits and vegetables, monitoring birds and rodents, inactive T. gondii oocysts in felids feces, and proper hygiene.
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Affiliation(s)
- Yu-Rong Yang
- Department of Basic Veterinary, College of Animal Science and Veterinary Medicine, Henan Agricultural UniversityZhengzhou, China
| | - Yong-Jie Feng
- Department of Basic Veterinary, College of Animal Science and Veterinary Medicine, Henan Agricultural UniversityZhengzhou, China
| | - Yao-Yao Lu
- Department of Basic Veterinary, College of Animal Science and Veterinary Medicine, Henan Agricultural UniversityZhengzhou, China
| | - Hui Dong
- Department of Basic Veterinary, College of Animal Science and Veterinary Medicine, Henan Agricultural UniversityZhengzhou, China
| | | | - Yi-Bao Jiang
- Department of Basic Veterinary, College of Animal Science and Veterinary Medicine, Henan Agricultural UniversityZhengzhou, China
| | - Xing-Quan Zhu
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural SciencesLanzhou, China
| | - Long-Xian Zhang
- Department of Basic Veterinary, College of Animal Science and Veterinary Medicine, Henan Agricultural UniversityZhengzhou, China
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28
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Yang Y, Feng Y, Yao Q, Wang Y, Lu Y, Liang H, Zhu X, Zhang L. Seroprevalence, Isolation, Genotyping, and Pathogenicity of Toxoplasma gondii Strains from Sheep in China. Front Microbiol 2017; 8:136. [PMID: 28217119 PMCID: PMC5289961 DOI: 10.3389/fmicb.2017.00136] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2016] [Accepted: 01/19/2017] [Indexed: 12/04/2022] Open
Abstract
Toxoplasma gondii is an important cause of reproductive failure in small ruminants that also poses a risk to consumers who consume undercooked meat. However, little is known about sheep toxoplasmosis in China for the world. Therefore, this study was conducted to assess the prevalence of T. gondii infection in sheep from China, to isolate T. gondii via bioassay in mice and to evaluate the virulence of the isolated T. gondii based on vero cell invasion and mice. A total of 840 samples (304 unfrozen hearts and 536 sera) from sheep in China were collected from 2014 to 2016. Heart samples (n = 36) of T. gondii seropositive sheep (MAT, ≥25) were bioassayed in mice individually. DNA derived from cell cultured tachyzoites of the isolated T. gondii was characterized by PCR-RFLP of 10 loci (SAG1, SAG2, SAG3, BTUB, GRA6, c22-8, c29-2, L358, PK1, and Apico). The virulence of the T. gondii was evaluated based on the mortality and encystation in mice, as well as their growth characteristics in cell culture. Antibodies to T. gondii were found in 174 of 840 (20.71%, 304 hearts juice and 536 sera) sheep by the modified agglutination test (cut-off 1:25). Viable T. gondii was isolated from the hearts of two of 36 seropositive sheep hearts. Both genotypes of the sheep heart isolates were ToxoDB#9. The virulence of the two ToxoDB#9 isolations varied significantly. To the best of our knowledge, this is the first report of isolation of ToxoDB#9 strain of T. gondii from sheep in China.
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Affiliation(s)
- YuRong Yang
- College of Animal Science and Veterinary Medicine, Henan Agricultural University Zhengzhou, China
| | - YongJie Feng
- College of Animal Science and Veterinary Medicine, Henan Agricultural University Zhengzhou, China
| | - QiuXia Yao
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences Lanzhou, China
| | - YingHua Wang
- Center for Animal Disease Control and Prevention of Henan Province Zhengzhou, China
| | - YaoYao Lu
- College of Animal Science and Veterinary Medicine, Henan Agricultural University Zhengzhou, China
| | - HongDe Liang
- College of Animal Science and Veterinary Medicine, Henan Agricultural University Zhengzhou, China
| | - XingQuan Zhu
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences Lanzhou, China
| | - LongXian Zhang
- College of Animal Science and Veterinary Medicine, Henan Agricultural University Zhengzhou, China
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Wang CY, Lu YY, Qin WH. [Determination of 1-hydroxy-2-butanone in urine by gas chromatography]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2016; 34:775-777. [PMID: 28043255 DOI: 10.3760/cma.j.issn.1001-9391.2016.10.015] [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 establish a method for the determination of 1-hydroxy-2-butanone in urine by gas chromatography. Methods: Urine samples were acidified with hydrochloric acid, and then stored in the refrigerator . After thawing under natural conditions, urine volume of 2.0 ml was extracted by C18 solid phase, using methanol volume of 2.0 ml elution, detected by gas chromatography with FID detector and quantified by external standard method. Results: The measurement range of method is 0.986 ~32.88 μg/ml, correlation coefficient (r) =0.999 7, detection limit is 0.13 μg/ml; The recovery is 88.1% ~92.2% ; The precision is 1.4% ~3.2%. Conclusion: This method has a high sensitivity and simple processing. All technical indicators can meet the requirements of the determination method.
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Affiliation(s)
- C Y Wang
- Henan Provincial Institute of Occupational Health, Zhengzhou 450052, China
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30
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Lu YY, Fang F. [The effect of human cytomegalovirus microRNA on virus latent infection]. Zhonghua Er Ke Za Zhi 2016; 54:632-634. [PMID: 27510881 DOI: 10.3760/cma.j.issn.0578-1310.2016.08.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
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31
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Gao JH, Wen SL, Feng S, Yang WJ, Lu YY, Tong H, Liu R, Tang SH, Huang ZY, Tang YM, Yang JH, Xie HQ, Tang CW. Celecoxib and octreotide synergistically ameliorate portal hypertension via inhibition of angiogenesis in cirrhotic rats. Angiogenesis 2016; 19:501-11. [PMID: 27380212 PMCID: PMC5026725 DOI: 10.1007/s10456-016-9522-9] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2015] [Accepted: 06/29/2016] [Indexed: 02/05/2023]
Abstract
Abnormal angiogenesis is critical for portal hypertension in cirrhosis. Except for etiological treatment, no efficient medication or regime has been explored to treat the early stage of cirrhosis when angiogenesis is initiated or overwhelming. In this study, we explored an anti-angiogenesis effort through non-cytotoxic drugs octreotide and celecoxib to treat early stage of cirrhotic portal hypertension in an animal model. Peritoneal injection of thioacetamide (TAA) was employed to induce liver cirrhosis in rats. A combination treatment of celecoxib and octreotide was found to relieve liver fibrosis, portal venous pressure, micro-hepatic arterioportal fistulas, intrahepatic and splanchnic angiogenesis. Celecoxib and octreotide exerted their anti-angiogenesis effect via an axis of cyclooxygenase-2/prostaglandin E2/EP-2/somatostatin receptor-2, which consequently down-regulated phosphorylation of extracellular signal-regulated kinase (p-ERK)–hypoxia-inducible factor-1α (HIF-1α)–vascular endothelial growth factor (VEGF) integrated signaling pathways. In conclusions, combination of celecoxib and octreotide synergistically ameliorated liver fibrosis and portal hypertension of the cirrhotic rats induced by TAA via the inhibition of intrahepatic and extrahepatic angiogenesis. The potential mechanisms behind the regimen may due to the inactivation of p-ERK–HIF-1α–VEGF signaling pathway.
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Affiliation(s)
- Jin-Hang Gao
- Division of Peptides Related with Human Diseases, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, People's Republic of China.,Department of Gastroenterology, West China Hospital, Sichuan University, Chengdu, 610041, People's Republic of China
| | - Shi-Lei Wen
- Division of Peptides Related with Human Diseases, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, People's Republic of China.,Department of Human Anatomy, Academy of Preclinical and Forensic Medicine, West China Medicine College, Sichuan University, Chengdu, People's Republic of China
| | - Shi Feng
- Department of Human Anatomy, Academy of Preclinical and Forensic Medicine, West China Medicine College, Sichuan University, Chengdu, People's Republic of China
| | - Wen-Juan Yang
- Department of Gastroenterology, West China Hospital, Sichuan University, Chengdu, 610041, People's Republic of China
| | - Yao-Yao Lu
- Department of Gastroenterology, West China Hospital, Sichuan University, Chengdu, 610041, People's Republic of China
| | - Huan Tong
- Department of Gastroenterology, West China Hospital, Sichuan University, Chengdu, 610041, People's Republic of China
| | - Rui Liu
- Division of Peptides Related with Human Diseases, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, People's Republic of China
| | - Shi-Hang Tang
- Department of Gastroenterology, West China Hospital, Sichuan University, Chengdu, 610041, People's Republic of China
| | - Zhi-Yin Huang
- Department of Gastroenterology, West China Hospital, Sichuan University, Chengdu, 610041, People's Republic of China
| | - Ying-Mei Tang
- Department of Gastroenterology, The Second Affiliated Hospital of Kunming Medical University, Kunming, People's Republic of China
| | - Jin-Hui Yang
- Department of Gastroenterology, The Second Affiliated Hospital of Kunming Medical University, Kunming, People's Republic of China
| | - Hui-Qi Xie
- Laboratory of Stem Cell and Tissue Engineering, State Key Laboratory of Biotherapy and Regenerative Medicine Research Center, West China Hospital, Sichuan University, Chengdu, People's Republic of China
| | - Cheng-Wei Tang
- Division of Peptides Related with Human Diseases, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, People's Republic of China. .,Department of Gastroenterology, West China Hospital, Sichuan University, Chengdu, 610041, People's Republic of China.
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Abstract
Deregulation of microRNAs (miRNAs) is implicated in the initiation and progression of gastric cancer (GC). Previous studies have demonstrated that miR-204 was downregulated in GC tissues. However, its expression profile in serum samples and its potential for clinical value remain unknown. Real-time PCR was performed to evaluate the expression level of serum miR-204 in patients with GC. The association between serum miR-204 expression level and the clinical outcome of GC was then investigated. Our results showed that the expression of miR-204 in serum samples from GC patients was significantly lower than that in the healthy controls (P < 0.01). Serum miR-204 expression level of GC patients was significantly upregulated after receiving surgical resection (P < 0.01). In addition, serum miR-204 was associated with lymph node metastasis (P = 0.016), tumor differentiation (P = 0.001), and TNM stage (P = 0.005). GC patients with low serum miR-204 expression had shorter overall survival than those with high serum miR-204 expression (P = 0.004). Multivariate analysis revealed that serum miR-204 expression level was an independent risk factor for this malignant disease (HR = 3.629, 95%CI = 2.828-8.146, P = 0.015). In conclusion, our findings indicate that serum miR-204 may be employed as a novel biomarker for monitoring the treatment response and predicting the prognosis of GC.
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Affiliation(s)
- X Chen
- Qingdao University Medical College, Qingdao, Shandong, China.,Department of Gastroenterology, Yantai Municipal Laiyang Central Hospital, Yantai, Shandong, China
| | - X S Liu
- Qingdao University Medical College, Qingdao, Shandong, China.,Department of Gastroenterology, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
| | - H Y Liu
- Department of Infection Diseases, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
| | - Y Y Lu
- Qingdao University Medical College, Qingdao, Shandong, China.,Department of Gastroenterology, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
| | - Y Li
- Department of Gastroenterology, Qingdao Municipal Hospital, Qingdao, Shandong, China
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Jiang YQ, Zhu YX, Chen XL, Xu X, Li F, Fu HJ, Shen CY, Lu YY, Zhuang QJ, Xu G, Cai YY, Zhang Y, Liu SS, Zhu MY, Li SH. Impact of adherence to GOLD guidelines on 6-minute walk distance, MRC dyspnea scale score, lung function decline, quality of life, and quality-adjusted life years in a Shanghai suburb. Genet Mol Res 2015; 14:8861-70. [PMID: 26345817 DOI: 10.4238/2015.august.3.9] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
We performed a 1-year cluster-randomized field trial to assess the effect of standardized management of chronic obstructive pulmonary disease (COPD) on lung function and quality of life (QOL) measures in patients in China. We used the Global Initiative for Chronic Obstructive Lung Disease (GOLD) treatment guidelines and assessed indexes including pulmonary function, QOL, quality-adjusted life years (QALY), Medical Research Council (MRC) dyspnea scale, 6-min walk distance (6-MWD), number of emergency visits, and frequency of hospitalization. Of a total of 711 patients with chronic cough and asthma, 132 were diagnosed as having COPD and 102 participated in this study [intervention group (N = 47); control group (N = 55)]. We found that adherence to GOLD guidelines had a perceivable impact on 6-MWD, MRC dyspnea scale score, and QOL. The average QALY increased by 1.42/person/year in the intervention group, but declined by 0.95/person/year in the control group. We conclude that standardized management improves disease severity, QOL, and QALY in COPD patients when treatment protocols adhere to GOLD guidelines.
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Affiliation(s)
- Y Q Jiang
- Shanghai Municipal First People's Hospital Affiliated to Shanghai Jiaotong University, Shanghai, China
| | - Y X Zhu
- Songjiang Branch of Shanghai Municipal First People's Hospital Affiliated to Shanghai Jiaotong University, Shanghai, China
| | - X L Chen
- Songjiang Branch of Shanghai Municipal First People's Hospital Affiliated to Shanghai Jiaotong University, Shanghai, China
| | - X Xu
- Songjiang Branch of Shanghai Municipal First People's Hospital Affiliated to Shanghai Jiaotong University, Shanghai, China
| | - F Li
- Songjiang Branch of Shanghai Municipal First People's Hospital Affiliated to Shanghai Jiaotong University, Shanghai, China
| | - H J Fu
- Xiaokunshan Town Primary Care of Songjiang District, Shanghai, China
| | - C Y Shen
- Xiaokunshan Town Primary Care of Songjiang District, Shanghai, China
| | - Y Y Lu
- Xiaokunshan Town Primary Care of Songjiang District, Shanghai, China
| | - Q J Zhuang
- Xinbang Town Primary Care of Songjiang District, Shanghai, China
| | - G Xu
- School of Public Health, Shanghai Jiao Tong University, Shanghai, China
| | - Y Y Cai
- Institute of Respiratory Disease, Zhongshan Hospital Affiliated to Fudan University, Shanghai, China
| | - Y Zhang
- Shanghai Songjiang District Public Health Bureau, Shanghai, China
| | - S S Liu
- Shanghai Songjiang District Center for Diseases Control and Prevention, Shanghai, China
| | - M Y Zhu
- Shanghai Songjiang District Center for Diseases Control and Prevention, Shanghai, China
| | - S H Li
- Songjiang Branch of Shanghai Municipal First People's Hospital Affiliated to Shanghai Jiaotong University, Shanghai, China
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Xue CS, Lu YY, Xiao SQ, Duan YX. First Report of Phomopsis longicolla Causing Leaf Spot on Soybean in China. Plant Dis 2015; 99:290. [PMID: 30699596 DOI: 10.1094/pdis-09-14-0945-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] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
During July 2012, leaf spots affecting 60% of the leaves were observed on soybean cultivar He Feng 60 in fields near Shenyang City, Liaoning Province, leading to 5 to 10% yield loss. The leaf spots were associated with the leaf margins and were irregularly shaped, with brown to black margins and surrounded by a thin, yellow halo. Often, several spots merged to form large necrotic areas, which contained numerous pycnidia on the underside of the leaf. Small pieces (5 mm2) were excised from the margin of diseased and healthy tissue, surface-sterilized in 70% ethanol solution for 30 s and 0.1% mercuric chloride solution for 1 min, washed in three changes of sterile distilled water, and transferred to plates containing potato dextrose agar (PDA). Cultures were maintained in an incubator at 25°C with a 12 h dark/light photoperiod for 5 to 7 days. On PDA, colonies were white with yellow areas, floccose, dense, and moderately fast growing, attaining a diameter of 3.9 mm after 5 days and 9.0 mm after 14 days. Finally, large black stromata appeared after 28 days at 25°C. The conidiomata pycnidia were black, stomatic, globose, length 83.6 to 232 μm, width 37.9 to 146.3 μm and produced α-conidia that were unicellular, hyaline, sometimes two-guttulate, length 4.75 to 8.25 μm, width 1.50 to 3.00 μm. β-Conidia were not observed. To confirm the morphological identification, the ribosomal internal transcribed spacers (ITS1-5.8S-ITS2) from isolates were sequenced (GenBank Accession No. KC460334). The PCR products were cloned into a pMD-19T Cloning Vector (Sangon Biotech, Shanghai, China). The clones were purified with TIANprep Mini Plasmid Kit (Tiangen Biotech, Beijing, China) to get the full-length ITS sequence. BLAST analysis of the isolates showed 100% nucleotide sequence identity with Phomopsis longicolla (AY745021). Four additional primer pairs-large subunit (NL1/NL4), beta-tublin gene (Bt2a/Bt2b), translation elongation factor 1α gene(EF1-728F/EF1-986R), and act gene(ACT-512F/ACT-783R) (1,2)-were amplified and sequenced as described above. The large subunit gene, β-tubulin gene, and translation elongation factor 1α gene from isolates were sequenced (Sangon Biotech). BLAST analysis indicated that the isolates had 100% nucleotide sequence identity with P. longicolla (AB107259, HQ333514, and AF398896). Because the act gene sequence of P. longicolla was not in the NCBI database, this sequence had 94% nucleotide sequence identity with P. cuppatea (JN230389). To fulfill Koch's postulates, five leaves on five healthy soybean plants were inoculated with a conidial suspension (106/ml). Plants inoculated with sterile water served as the noninoculated controls. Plants were incubated in the greenhouse at 25°C. All the inoculated leaves developed pinhead spots on the leaves, gradually increasing to large brown spots. Spots were irregularly shaped, brown and necrotic in the center, and surrounded by a yellow halo. Black pycnidia appeared after 10 days, whereas the noninoculated control plants remained asymptomatic. P. longicolla was consistently recovered from all inoculated plants, except the control. Morphological description of isolates was similar to that of Hobbs (3). However, as described by Hobbs and others, P. longicolla conidiomata pycnidia have prominent necks more than 200 μm long, opening by apical ostioles; locules are uniostiolate or multiostiolate, globose, up to 500 μm wide. The pycnidia size of isolates by frozen section method was smaller than that of Hobbs. Based on morphological and sequence comparisons, the pathogen of leaf spot disease is caused by P. longicolla. This is the first reported leaf spot caused by P. longicolla on soybean in China. References: (1) T. Boekhou et al. Stud. Mycol. 38:75, 1995. (2) P. W. Crous et al. Stud. Mycol. 75:37, 2013. (3) T. W. Hobbs et al. Mycologia 77:535, 1985.
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Affiliation(s)
- C S Xue
- College of Plant Protection, Shenyang Agricultural University, Shenyang 110866, Liaoning Province, China
| | - Y Y Lu
- College of Plant Protection, Shenyang Agricultural University, Shenyang 110866, Liaoning Province, China
| | - S Q Xiao
- College of Plant Protection, Shenyang Agricultural University, Shenyang 110866, Liaoning Province, China
| | - Y X Duan
- College of Plant Protection, Shenyang Agricultural University, Shenyang 110866, Liaoning Province, China
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Goh CH, Lu YY, Lau BL, Oy J, Lee HK, Liew D, Wong A. Brain and spinal tumour. Med J Malaysia 2014; 69:261-267. [PMID: 25934956] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
This study reviewed the epidemiology of brain and spinal tumours in Sarawak from January 2009 till December 2012. The crude incidence of brain tumour in Sarawak was 4.6 per 100,000 population/year with cumulative rate 0.5%. Meningioma was the most common brain tumour (32.3%) and followed by astrocytoma (19.4%). Only brain metastases showed a rising trend and cases were doubled in 4 years. This accounted for 15.4% and lung carcinoma was the commonest primary. Others tumour load were consistent. Primitive neuroectodermal tumour (PNET) and astrocytoma were common in paediatrics (60%). We encountered more primary spinal tumour rather than spinal metastases. Intradural schwannoma was the commonest and frequently located at thoracic level. The current healthcare system in Sarawak enables a more consolidate data collection to reflect accurate brain tumours incidence. This advantage allows subsequent future survival outcome research and benchmarking for healthcare resource planning.
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Affiliation(s)
- C H Goh
- Sarawak General Hospital, Department of Neurosurgery, Jalan Hospital, Kuching, Sarawak 93586, Malaysia.
| | - Y Y Lu
- Sarawak General Hospital, Department of Neurosurgery, Jalan Hospital, Kuching, Sarawak 93586, Malaysia
| | - B L Lau
- Sarawak General Hospital, Department of Neurosurgery, Jalan Hospital, Kuching, Sarawak 93586, Malaysia
| | - J Oy
- Sarawak General Hospital, Department of Pathology, Jalan Hospital, Kuching, Sarawak 93586, Malaysia
| | - H K Lee
- Sarawak General Hospital, Department of Neurosurgery, Jalan Hospital, Kuching, Sarawak 93586, Malaysia
| | - D Liew
- Sarawak General Hospital, Department of Neurosurgery, Jalan Hospital, Kuching, Sarawak 93586, Malaysia
| | - A Wong
- Sarawak General Hospital, Department of Neurosurgery, Jalan Hospital, Kuching, Sarawak 93586, Malaysia
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Wen SL, Gao JH, Yang WJ, Lu YY, Tong H, Huang ZY, Liu ZX, Tang CW. Celecoxib attenuates hepatic cirrhosis through inhibition of epithelial-to-mesenchymal transition of hepatocytes. J Gastroenterol Hepatol 2014; 29:1932-42. [PMID: 24909904 DOI: 10.1111/jgh.12641] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 05/01/2014] [Indexed: 02/05/2023]
Abstract
BACKGROUND AND AIM The epithelial-mesenchymal transition (EMT) of hepatocytes is a key step for hepatic fibrosis and cirrhosis. Long-term administration of celecoxib, a selective cyclooxygenase-2 (COX-2) inhibitor, can ameliorate hepatic fibrosis. This research aimed to examine the effect of celecoxib on the EMT of hepatocytes during the development of liver cirrhosis. METHODS Cirrhotic liver model of rat was established by peritoneal injection of thiacetamide (TAA). Thirty-six rats were randomly assigned to control, TAA, and TAA + celecoxib groups. Hepatic expressions of tumor necrosis factor-α (TNF-α), interleukin 6 (IL-6), COX-2, prostaglandin E2 (PGE2 ), matrix metalloproteinase (MMP)-2 and -9, transforming growth factor-β1 (TGF-β1), Phospho-Smad2/3, Snail1, α-smooth muscle actin (α-SMA), vimentin, collagen I, fibroblast-specific protein (FSP-1), E-cadherin and N-cadherin were quantitated. Hepatic fibrosis was assessed by the visible hepatic fibrotic areas and Ishak's scoring system. RESULTS Exposed to TAA treatment, hepatocytes underwent the process of EMT during hepatic fibrosis. Compared with those in TAA group, celecoxib significantly downregulated the hepatic expressions of TNF-α, IL-6, COX-2, PGE2 , MMP-2, MMP-9, TGF-β1, Phospho-Smad2/3, Snail1, α-SMA, FSP-1, and vimentin while greatly restoring the levels of E-cadherin. The fibrotic areas and collagen I levels of TAA + celecoxib group were much lower than those in TAA group. CONCLUSIONS Celecoxib could ameliorate hepatic fibrosis and cirrhosis in TAA-rat model through suppression of the mesenchymal biomarkers in the hepatocytes while restoring the levels of their epithelial biomarkers. The inhibitory effect of celecoxib on the EMT of hepatocytes is associated with reduction of intrahepatic inflammation, preservation of normal basement matrix, and inhibition of TGF-β1/Smad pathway.
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Affiliation(s)
- Shi-Lei Wen
- Regenerative Medicine Research Center, West China Hospital, Chengdu, China; Division of Peptides Related with Human Diseases, State Key Laboratory of Biotherapy, Sichuan University, Chengdu, China
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Li HY, Ru GX, Zhang J, Lu YY. Genetic diversity in wild populations of Paulownia fortune. Genetika 2014; 50:1330-1337. [PMID: 25739286 DOI: 10.7868/s0016675814100075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
The genetic diversities of 16 Paulownia fortunei populations involving 143 individuals collected from 6 provinces in China were analyzed using amplified fragment length polymorphism (AFLP). A total of 9 primer pairs with 1169 polymorphic loci were screened out, and each pair possessed 132 bands on average. The percentage of polymorphic bands (98.57%), the effective number of alleles (1.2138-1.2726), Nei's genetic diversity (0.1566-0.1887), and Shannon's information index (0.2692-0.3117) indicated a plentiful genetic diversity and different among Paulownia fortunei populations. The genetic differentiation coefficient between populations was 0.2386, while the gene flow was 1.0954, and the low gene exchange promoted genetic differentiation. Analysis of variance indicated that genetic variation mainly occurred within populations (81.62% of total variation) rather than among populations (18.38%). The 16 populations were divided by unweighted pair-group method with arithmetic means (UPGMA) into 4 groups with obvious regionalism, in which the populations with close geographical locations (latitude) were clustered together.
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Gao JH, Wen SL, Yang WJ, Lu YY, Tong H, Huang ZY, Liu ZX, Tang CW. Celecoxib ameliorates portal hypertension of the cirrhotic rats through the dual inhibitory effects on the intrahepatic fibrosis and angiogenesis. PLoS One 2013; 8:e69309. [PMID: 23922700 PMCID: PMC3724827 DOI: 10.1371/journal.pone.0069309] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2013] [Accepted: 06/12/2013] [Indexed: 02/05/2023] Open
Abstract
BACKGROUND Increased intra-hepatic resistance to portal blood flow is the primary factor leading to portal hypertension in cirrhosis. Up-regulated expression of cyclooxygenase-2 (COX-2) in the cirrhotic liver might be a potential target to ameliorate portal hypertension. OBJECTIVE To verify the effect of celecoxib, a selective inhibitor of COX-2, on portal hypertension and the mechanisms behind it. METHODS Cirrhotic liver model of rat was established by peritoneal injection of thiacetamide (TAA). 36 rats were randomly assigned to control, TAA and TAA+celecoxib groups. Portal pressures were measured by introduction of catheters into portal vein. Hepatic fibrosis was assessed by the visible hepatic fibrotic areas and mRNAs for collagen III and α-SMA. The neovasculature was determined by hepatic vascular areas, vascular casts and CD31 expression. Expressions of COX-2, vascular endothelial growth factor (VEGF), VEGF receptor-2 (VEGFR-2) and related signal molecules were quantitated. RESULTS Compared with TAA group, the portal pressure in TAA+celecoxib group was significantly decreased by 17.8%, p<0.01. Celecoxib treatment greatly reduced the tortuous hepatic portal venules. The data of fibrotic areas, CD31expression, mRNA levels of α-SMA and collagen III in TAA+celecoxib group were much lower than those in TAA group, p<0.01. Furthermore, the up-regulation of hepatic mRNA and protein levels of VEGF, VEGFR-2 and COX-2 induced by TAA was significantly inhibited after celecoxib treatment. The expressions of prostaglandin E2 (PGE2), phosphorylated extracellular signal-regulated kinase (p-ERK), hypoxia-inducible factor-1α (HIF-1α), and c-fos were also down-regulated after celecoxib treatment. CONCLUSIONS Long term administration of celecoxib can efficiently ameliorate portal hypertension in TAA rat model by its dual inhibitory effects on the intrahepatic fibrosis and angiogenesis. The anti-angiogenesis effect afforded by celecoxib may attribute to its modulation on VEGF/VEGFR-2 through the down-regulation of integrated signal pathways involving PGE2- HIF-1α- VEGF and p-ERK- c-fos- VEGFR-2.
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Affiliation(s)
- Jin-Hang Gao
- Division of Peptides Related with Human Diseases, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, China
- Department of Gastroenterology, West China Hospital, Sichuan University, Chengdu, China
| | - Shi-Lei Wen
- Division of Peptides Related with Human Diseases, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, China
- Regenerative Medicine Research Center, West China Hospital, Sichuan University, Chengdu, China
| | - Wen-Juan Yang
- Department of Gastroenterology, West China Hospital, Sichuan University, Chengdu, China
| | - Yao-Yao Lu
- Department of Gastroenterology, West China Hospital, Sichuan University, Chengdu, China
| | - Huan Tong
- Department of Gastroenterology, West China Hospital, Sichuan University, Chengdu, China
| | - Zhi-Yin Huang
- Department of Gastroenterology, West China Hospital, Sichuan University, Chengdu, China
| | - Zhang-Xu Liu
- Research Center for Liver Diseases, Keck School of Medicine, University of Southern California, Los Angeles, California, United States of America
| | - Cheng-Wei Tang
- Division of Peptides Related with Human Diseases, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, China
- Department of Gastroenterology, West China Hospital, Sichuan University, Chengdu, China
- * E-mail:
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Lu J, Wang YX, Lu YY, Wang GL, Kong L, Zhu J. Numerical simulation of the electrodeionization (EDI) process for producing ultrapure water. Electrochim Acta 2010. [DOI: 10.1016/j.electacta.2010.07.054] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Abstract
Aims: Real‐time reverse transcription‐polymerase chain reaction (RT‐PCR) assay based on a TaqMan‐minor groove binder (MGB) probe was developed for the rapid detection of avian influenza virus subtype H5. Methods and Results: Conserved regions in the haemagglutinin genes of avian influenza viruses subtype H5 served as targets for the primers and TaqMan‐MGB probe design. Concentrations of primers and probe were optimized to improve the sensitivity and specificity of the reactions. A plasmid containing the haemagglutinin gene was constructed and in vitro transcribed for a quantitative assay of copy numbers of the target gene. The results revealed that the optimal concentration of primers and probe was 640 and 480 nmol l−1, respectively. The threshold of 100 copies of target molecules could be detected. The linear range for detection was determined as 102 to 108 molecules in reaction. Conclusions: It took less than 3 h to complete the detection from viral RNA extraction, with good sensitivity and repeatability. Significance and Impact of the Study: Real‐time RT‐PCR assay with MGB probe was an effective means for quick and quantitative laboratory detection and monitoring of H5 avian influenza viruses.
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Affiliation(s)
- Y Y Lu
- Institute of Virology, Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou, China.
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Mao IF, Lu YY, Sung FC, Wang SG, Chen ML. Study on 4-Nonylphenol Environmental Exposure in Taiwanese. Epidemiology 2006. [DOI: 10.1097/00001648-200611001-00886] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Sun M, Paciga JE, Feldman RI, Yuan Z, Coppola D, Lu YY, Shelley SA, Nicosia SV, Cheng JQ. Phosphatidylinositol-3-OH Kinase (PI3K)/AKT2, activated in breast cancer, regulates and is induced by estrogen receptor alpha (ERalpha) via interaction between ERalpha and PI3K. Cancer Res 2001; 61:5985-91. [PMID: 11507039] [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: 02/21/2023]
Abstract
We have shown previously that the AKT2 pathway is essential for cell survival and important in malignant transformation. In this study, we demonstrate elevated kinase levels of AKT2 and phosphatidylinositol-3-OH kinase (PI3K) in 32 of 80 primary breast carcinomas. The majority of the cases with the activation are estrogen receptor alpha (ERalpha) positive, which prompted us to examine whether AKT2 regulates ERalpha activity. We found that constitutively activated AKT2 or AKT2 activated by epidermal growth factor or insulin-like growth factor-1 promotes the transcriptional activity of ERalpha. This effect occurred in the absence or presence of estrogen. Activated AKT2 phosphorylates ERalpha in vitro and in vivo, but it does not phosphorylate a mutant ERalpha in which ser-167 was replaced by Ala. The PI3K inhibitor, wortmannin, abolishes both the phosphorylation and transcriptional activity of ERalpha induced by AKT2. However, AKT2-induced ERalpha activity was not inhibited by tamoxifen but was completely abolished by ICI 164,384, implicating that AKT2-activated ERalpha contributes to tamoxifen resistance. Moreover, we found that ERalpha binds to the p85alpha regulatory subunit of PI3K in the absence or presence of estradiol in epithelial cells and subsequently activates PI3K/AKT2, suggesting ERalpha regulation of PI3K/AKT2 through a nontranscriptional and ligand-independent mechanism. These data indicate that regulation between the ERalpha and PI3K/AKT2 pathway (ERalpha-PI3K/AKT2-ERalpha) may play an important role in pathogenesis of human breast cancer and could contribute to ligand-independent breast cancer cell growth.
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Affiliation(s)
- M Sun
- Department of Pathology and Programs of Molecular Oncology and Drug Discovery, University of South Florida College of Medicine and H. Lee Moffitt Cancer Center, Tampa, Florida 33612, USA
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Chung UL, Kao CH, Wu SF, Gau ML, Kuo SC, Tseng HY, Lin MH, Lu YY. [The development of a competency-based clinical performance examination model in maternity nursing for BSN graduates]. Hu Li Yan Jiu 2001; 9:213-222. [PMID: 17953066] [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: 05/25/2023]
Abstract
The purpose of the study was to establish a competency-based clinical performance examination model in maternity nursing for baccalaureate students. Action research was the main research methodology used in the study. A committee, consisting of nursing faculty, students and experienced obstetric nurses, was established to develop the model. Based on intensive literature reviews and standards of nursing practice in Taiwan, the first draft of the model, including the content and process, was created by the committee. The draft then was revised twice after expert review and pilot testing. The revised version of the model was formally implemented into the curriculum to examine the competencies of forty-one BSN students at the end of the perinatal nursing course. Responses from students, clinical examiners, clinical staff and clients were all gathered and integrated to refine the model. The model has content, expert and discriminative validity. The reliability of the model was proven by the high consistency in administration and scoring of the model among clinical examiners.
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Balsara BR, Pei J, De Rienzo A, Simon D, Tosolini A, Lu YY, Shen FM, Fan X, Lin WY, Buetow KH, London WT, Testa JR. Human hepatocellular carcinoma is characterized by a highly consistent pattern of genomic imbalances, including frequent loss of 16q23.1-24.1. Genes Chromosomes Cancer 2001; 30:245-53. [PMID: 11170281 DOI: 10.1002/1098-2264(2000)9999:9999<::aid-gcc1083>3.0.co;2-m] [Citation(s) in RCA: 53] [Impact Index Per Article: 2.3] [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: 12/13/2022] Open
Abstract
Comparative genomic hybridization (CGH) analysis was used to identify chromosomal imbalances in 52 human primary hepatocellular carcinomas (HCCs). The most prominent changes were gains of part or all of chromosome arms 8q (83% of cases) and 1q (73%) and loss of 16q (63%). Other commonly overrepresented sites were 5p, 7q, and Xq. Recurrent sites of DNA sequence amplification included 8q23--24 (five cases) and 11q13--14 (four cases). Other frequently underrepresented sites were 4q, 8p, 16p, and 17p. Taken collectively, these findings and data from other CGH studies of HCCs define a subset of chromosome segments that are consistently over- or underrepresented and highlight sites of putative oncogenes and tumor suppressor genes, respectively, involved in hepatocellular oncogenesis. Loss of heterozygosity analysis with a panel of polymorphic microsatellite markers distributed along 16q defined a minimal region of chromosomal loss at 16q23.1--24.1, suggesting that this region harbors a tumor suppressor gene whose loss/inactivation may contribute to the pathogenesis of many HCCs.
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Affiliation(s)
- B R Balsara
- Human Genetics Program, Division of Population Sciences, Fox Chase Cancer Center, Philadelphia, Pennsylvania 19111, USA
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Lu YY, Shen P, Ding W. [Study on the relationship between microvascular density and prognosis in laryngeal cancer]. Lin Chuang Er Bi Yan Hou Ke Za Zhi 2000; 14:538-9. [PMID: 12563950] [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 study the relationship between the microvascular density(MVD) and the prognosis in laryngeal cancer. METHOD Microvessel quantitation in 31 cases of laryngeal cancer was done with factor VIII-related antibody and SABC method. RESULT The quantitation of microvessels in laryngeal cancer were negative of histologic grade and type, but were significantly different (P < 0.05) between metastasis (10.23 +/- 0.78) and without metastasis(6.38 +/- 0.33) two years after operation. CONCLUSION The angiogenesis of laryngeal cancer is correlated with the lymph node metastasis and prognosis.
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Affiliation(s)
- Y Y Lu
- Department of Otorhinolaryngology, First Affiliated Hospital, College of Medical Sciences, Zhejiang University, Hangzhou 310003
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Ji YJ, Xiao B, Wang ZH, Cui MZ, Lu YY. The suppression effect of light rare earth elements on proliferation of two cancer cell lines. Biomed Environ Sci 2000; 13:287-292. [PMID: 11351862] [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: 05/23/2023]
Abstract
To study the suppression effect of light rare earth elements (RE) on proliferation of two cancer cell lines. Two cancer cell lines PAMC82 and K562 were used to examine their colony-forming ability in soft agar, microtubule structure, calmodulin levels and regulation of some gene expressions by Northern blot analysis with and without treatment by RE. The results showed that on soft agar culture the colony-forming ability of human gastric cancer cell line PAMC82 treated by RE chloride decreased and the PAMC82 cell microtubule abnormal structure became normal. The calmodulin (CaM) levels decreased in human leukemia cells (K562) treated with cerium chloride and neodymium chloride. The Northern blot analysis revealed marked up-regulation of p53, p16(MTS1), p21 (WAF1) gene expressions in PAMC82 cells treated with lanthanum chloride and cerium chloride, as compared to control PAMC82 cells. The light rare earth elements studied have certain suppression effects on proliferation of cancer cells. This effect might be related to the decrease of calmodulin and up-regulation of some gene expressions in cancer cells.
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Affiliation(s)
- Y J Ji
- Beijing Institute of Labor Hygiene and Occupational Diseases, Beijing 100020, China
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Zeng JX, Liu WW, Shi MJ, Yang XR, Mi LX, Lu YY, Zheng QA, Wang HY. [Effects of total flavones of metasequosia on left ventricular hypertrophy due to pressure overload in rats]. Zhongguo Zhong Yao Za Zhi 2000; 25:622-4. [PMID: 12516455] [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 determine the preventive and regressive effects of total flavones of metasequosia (TFM) on left ventricular hypertrophy in rats. METHOD Left ventricular hypertrophy was inducedin by partial ligation of abdominal aorta. The rats were given ig TFM(4, 40, 400 mg.kg-1.d-1) for six weeks. RESULT TFM markedly reduced the HW/BW, LVW/BW, myofibril diameter and Ca2+ content in left ventricles but the systolic blood pressure (SBP) in rats wasn't obviously influenced. CONCLUSION TFM can prevent and reverse the left ventricular hypertrophy due to pressure overload in rats. The mechanism may be related to its calcium antagonistic properties.
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Affiliation(s)
- J X Zeng
- Dept of Pharmacology, Hubei Medical University, Wuhan 430071, Hubei, China
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Abstract
A fully automated system was developed for the depth of anesthesia estimation and control with the intravenous anesthetic, Propofol. The system determines the anesthesia depth by assessing the characteristics of the mid-latency auditory evoked potentials (MLAEP). The discrete time wavelet transformation was used for compacting the MLAEP which localizes the time and the frequency of the waveform. Feature reduction utilizing step discriminant analysis selected those wavelet coefficients which best distinguish the waveforms of those responders from the nonresponders. A total of four features chosen by such analysis coupled with the Propofol effect-site concentration were used to train a four-layer artificial neural network for classifying between the responders and the nonresponders. The Propofol is delivered by a mechanical syringe infusion pump controlled by Stanpump which also estimates the Propofol effect-site and plasma concentrations using a three-compartment pharmacokinetic model with the Tackley parameter set. In the animal experiments on dogs, the system achieved a 89.2% accuracy rate for classifying anesthesia depth. This result was further improved when running in real-time with a confidence level estimator which evaluates the reliability of each neural network output. The anesthesia level is adjusted by scheduled incrementation and a fuzzy-logic based controller which assesses the mean arterial pressure and/or the heart rate for decrementation as necessary. Various safety mechanisms are implemented to safeguard the patient from erratic controller actions caused by external disturbances. This system completed with a friendly interface has shown satisfactory performance in estimating and controlling the depth of anesthesia.
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Affiliation(s)
- J W Huang
- Department of Biomedical Engineering, Rensselaer Polytechnic Institute, Troy, NY 12180, USA
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Li Z, Lu YY. [Correlation between alteration of the APC gene and human cancer]. Sheng Li Ke Xue Jin Zhan 1996; 27:365-7. [PMID: 9772395] [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: 02/09/2023]
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Lu YY, Lam CY, Yung BY. Decreased accumulation and dephosphorylation of the mitosis-specific form of nucleophosmin/B23 in staurosporine-induced chromosome decondensation. Biochem J 1996; 317 ( Pt 1):321-7. [PMID: 8694782 PMCID: PMC1217481 DOI: 10.1042/bj3170321] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Nucleophosmin/B23 is highly phosphorylated by cdc2 kinase during mitosis, and this phosphorylation most probably has a role in initiating and controlling the entry of cells into mitosis [Peter, Nakagawa, Doree, Labbe and Nigg (1990) Cell 60, 791-801]. In the present study, the protein kinase inhibitor staurosporine has been used to examine possible changes in nucleophosmin/B23 at mitosis in HeLa cells. Addition of staurosporine to HeLa cells already arrested at mitosis by nocodazole causes: (i) decreased accumulation of the mitosis-specific form of nucleophosmin/B23, (ii) dephosphorylation of nucleophosmin/ B23, (iii) redistribution of nucleophosmin/B23 to the cytosol, and (iv) concomitant decondensation of chromosomes. These results suggest that the mitosis-specific phosphorylated form of nucleophosmin/B23 may play a role in maintaining mitotic chromosomes in their condensed state.
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Affiliation(s)
- Y Y Lu
- Department of Pharmacology, Chang Gung Medical & Engineering College, Tao-Yuan, Taiwan, Republic of China
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