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Wang L, Huang BY, Xie XM, Sang D, Tan TH, Li GL, Cao XM, Jiang NF. A randomized controlled trial investigating the impact of a single flash cupping session on patients with chronic lower back pain using multichannel surface electromyographic assessment. J Back Musculoskelet Rehabil 2024; 37:617-628. [PMID: 38277281 DOI: 10.3233/bmr-230095] [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] [Indexed: 01/28/2024]
Abstract
BACKGROUND Chronic lower back pain (CLBP) is one of the most common disorders worldwide. Flash cupping has the ability to relieve CLBP; nevertheless, its impact on CLBP and the likely mechanism of action have not been studied. OBJECTIVE The goal of this study was to assess the impact of a single, brief cupping session on CLBP and low back muscle activity using multichannel surface electromyography (sEMG). METHODS In this randomized controlled trial, 24 patients with CLBP were enrolled and randomly assigned to the control group (treated by acupuncture) and cupping group (treated by acupuncture and flash cupping). Acupuncture was applied on the shen shu (BL23), dachang shu (BL25), and wei zhong (BL40) acupoints in both the groups. A brief cupping treatment was applied to the shen shu (BL23), qihai shu (BL24), dachang shu (BL25), guanyuan shu (BL26), and xiaochang shu (BL27) acupoints on both sides of the lower back in the cupping group. The numeric rating scale (NRS) was used to assess therapy efficacy for lower back pain (LBP) before and after treatment. Surface EMG data collected during symmetrical trunk flexion-extension movements were utilized to measure lower back muscle activity and the effectiveness of LBP therapy. RESULTS There was no statistically significant difference (P= 0.63) in pain intensity between the two groups before and after treatment. There was a statistically significant difference (P= 0.04) between the control group and the cupping group in the sEMG topographic map parameter CoGx-To-Midline. CONCLUSION This study established a connection between the action mechanism of flash cupping and enhanced horizontal synchronization of lower back muscular activity.
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Affiliation(s)
- Li Wang
- Acupuncture and Moxibustion Department, The Fourth Clinical Medical College of Guangzhou University of Traditional Chinese Medicine, Shenzhen, Guangdong, China
| | - Bing-Yao Huang
- Acupuncture and Moxibustion Department, The Fourth Clinical Medical College of Guangzhou University of Traditional Chinese Medicine, Shenzhen, Guangdong, China
| | - Xiao-Min Xie
- Acupuncture and Moxibustion Department, The Fourth Clinical Medical College of Guangzhou University of Traditional Chinese Medicine, Shenzhen, Guangdong, China
| | - Di Sang
- Acupuncture and Moxibustion Department, The Fourth Clinical Medical College of Guangzhou University of Traditional Chinese Medicine, Shenzhen, Guangdong, China
| | - Tian-Hui Tan
- Acupuncture and Moxibustion Department, The Fourth Clinical Medical College of Guangzhou University of Traditional Chinese Medicine, Shenzhen, Guangdong, China
| | - Guang-Lin Li
- CAS Key Laboratory of Human-Machine Intelligence-Synergy Systems, Shenzhen Institute of Advanced Technology (SIAT), Chinese Academy of Sciences (CAS), Shenzhen, Guangdong, China
- Guangdong-Hong Kong-Macao Joint Laboratory of Human-Machine Intelligence-Synergy Systems, Shenzhen, Guangdong, China
| | - Xue-Mei Cao
- Acupuncture and Moxibustion Department, The Fourth Clinical Medical College of Guangzhou University of Traditional Chinese Medicine, Shenzhen, Guangdong, China
| | - Nai-Fu Jiang
- CAS Key Laboratory of Human-Machine Intelligence-Synergy Systems, Shenzhen Institute of Advanced Technology (SIAT), Chinese Academy of Sciences (CAS), Shenzhen, Guangdong, China
- Guangdong-Hong Kong-Macao Joint Laboratory of Human-Machine Intelligence-Synergy Systems, Shenzhen, Guangdong, China
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Cao B, Fan XT, Wang RH, Luan XL, Qian CY, Yu JJ, Liu HC, Li MC, Li GL, Zhao XQ, Yuan XQ, Wan KL. [Preliminary evaluation of immunogenicity and protective effect of multicomponent recombinant protein vaccine EPRHP014 against tuberculosis]. Zhonghua Liu Xing Bing Xue Za Zhi 2023; 44:1653-1660. [PMID: 37875456 DOI: 10.3760/cma.j.cn112338-20230217-00088] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 10/26/2023]
Abstract
Objective: To evaluate the immunogenicity and protective effect of a multicomponent recombinant protein vaccine EPRHP014 constructed independently and provide a scientific basis for developing new tuberculosis (TB) vaccine and effective prevention and control of TB. Methods: Three full-length Mycobacterium (M.) tuberculosis protein antigens (EsxH, Rv2628, and HspX) and two epitope-predicted and optimized epitope-dominant protein antigens (nPPE18 and nPstS1) were selected, from which five protein antigens were used to construct a protein antigen composition EPRHP014, including a fusion expression multi-component protein antigen (EPRHP014f) and a multi-component mixed protein antigen (EPRHP014m) formed with the five single protein using clone, purification, and purification respectively. Multicomponent protein vaccines EPRHP014f and EPRHP014m were prepared with aluminum adjuvant, and the BCG vaccine was used as a control. ELISA detected the titer of serum-specific antibodies, the secretion of various cytokines was detected by ELISpot and Luminex, and immune protection was observed by the M. tuberculosis growth inhibition test in vitro. The results were statistically analyzed by t-test or rank sum test, and P<0.05 was considered a statistically significant difference. Results: Mice Immunized with EPRHP014m and EPRHP014f could produce highly effective IgG antibodies and their subtypes IgG1 and IgG2a, and the antibody titers were similar to those of mice immunized with BCG, with no statistical significance (P>0.05). The number of spot-forming cells (SFC) secreting IFN-γ and IL-4 induced by EPRHP014f group was significantly higher than those by EPRHP014m group and BCG group (P<0.05), but there was no significant difference in the number of SFC for IFN-γ and IL-4 induced between EPRHP014m group and BCG group (P>0.05). The secretion levels of GM-CSF and IL-12p70 induced by the EPRHP014m group were higher than those of the BCG group (P<0.05), but there was no significant difference in the levels of IL-6 and IL-10 induced between EPRHP014m group and BCG group (P>0.05). There was no significant difference in the secretions of IL-6, IL-10, IL-12, and GM-CSF between the EPRHP014f and BCG groups (P>0.05). EPRHP014m group, EPRHP014f group, and BCG group had obvious antibacterial effects in vitro, and the difference was insignificant (P>0.05). Conclusion: Both EPRHP014f and EPRHP014m can induce strong humoral and cellular immune responses in mice after immunization, and have a strong ability to inhibit the growth of M. tuberculosis in vitro, indicating that the antigen composition EPRHP014 has good potential in the development and application of TB vaccine.
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Affiliation(s)
- B Cao
- School of Public Health, University of South China, Hengyang 421001, China National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention/State Key Laboratory of Infectious Disease Prevention and Control, Beijing 102206, China
| | - X T Fan
- National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention/State Key Laboratory of Infectious Disease Prevention and Control, Beijing 102206, China
| | - R H Wang
- National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention/State Key Laboratory of Infectious Disease Prevention and Control, Beijing 102206, China
| | - X L Luan
- National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention/State Key Laboratory of Infectious Disease Prevention and Control, Beijing 102206, China
| | - C Y Qian
- National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention/State Key Laboratory of Infectious Disease Prevention and Control, Beijing 102206, China School of Life Sciences, College of Laboratory Medicine, Wenzhou Medical University, Wenzhou 325035, China
| | - J J Yu
- School of Public Health, University of South China, Hengyang 421001, China National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention/State Key Laboratory of Infectious Disease Prevention and Control, Beijing 102206, China
| | - H C Liu
- National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention/State Key Laboratory of Infectious Disease Prevention and Control, Beijing 102206, China
| | - M C Li
- National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention/State Key Laboratory of Infectious Disease Prevention and Control, Beijing 102206, China
| | - G L Li
- National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention/State Key Laboratory of Infectious Disease Prevention and Control, Beijing 102206, China
| | - X Q Zhao
- National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention/State Key Laboratory of Infectious Disease Prevention and Control, Beijing 102206, China
| | - X Q Yuan
- School of Public Health, University of South China, Hengyang 421001, China
| | - K L Wan
- National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention/State Key Laboratory of Infectious Disease Prevention and Control, Beijing 102206, China
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Hong M, Wang P, Shangguan T, Li GL, Bian RP, He W, Jiang W, Chen JP. [Correction of the pathogenic mutation in the G6PC3 gene by adenine base editing in mutant embryos]. Zhonghua Xue Ye Xue Za Zhi 2023; 44:308-315. [PMID: 37357000 DOI: 10.3760/cma.j.issn.0253-2727.2023.04.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Subscribe] [Scholar Register] [Indexed: 06/27/2023]
Abstract
Objective: To determine whether the adenine base editor (ABE7.10) can be used to fix harmful mutations in the human G6PC3 gene. Methods: To investigate the safety of base-edited embryos, off-target analysis by deep sequencing was used to examine the feasibility and editing efficiency of various sgRNA expression vectors. The human HEK293T mutation models and human embryos were also used to test the feasibility and editing efficiency of correction. Results: ①The G6PC3(C295T) mutant cell model was successfully created. ②In the G6PC3(C295T) mutant cell model, three distinct Re-sgRNAs were created and corrected, with base correction efficiency ranging from 8.79% to 19.56% . ③ ABE7.10 could successfully fix mutant bases in the human pathogenic embryo test; however, base editing events had also happened in other locations. ④ With the exception of one noncoding site, which had a high safety rate, deep sequencing analysis revealed that the detection of 32 probable off-target sites was <0.5% . Conclusion: This study proposes a new base correction strategy based on human pathogenic embryos; however, it also produces a certain nontarget site editing, which needs to be further analyzed on the PAM site or editor window.
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Affiliation(s)
- M Hong
- Guizhou University Medical College, Guiyang 550025, China
| | - P Wang
- Department of Hematology, the First Affiliated Hospital of Army Medical University (Southwest Hospital), Chongqing 400038, China
| | - T Shangguan
- Department of Reproductive Medicine, the First Affiliated Hospital of Army Medical University (Southwest Hospital), Chongqing 400038, China
| | - G L Li
- Department of Reproductive Medicine, Third Affiliated Hospital of Guangzhou Medical University, Guangzhou 510150, China
| | - R P Bian
- Guizhou University Medical College, Guiyang 550025, China
| | - W He
- Department of Reproductive Medicine, the First Affiliated Hospital of Army Medical University (Southwest Hospital), Chongqing 400038, China
| | - W Jiang
- Department of Hematology, the First Affiliated Hospital of Army Medical University (Southwest Hospital), Chongqing 400038, China
| | - J P Chen
- Department of Hematology, the First Affiliated Hospital of Army Medical University (Southwest Hospital), Chongqing 400038, China
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Zhang C, Hou Q, Guo TT, Zhong JT, Ren H, Li GL. [The effect of Wendler Glottoplasty to elevate vocal pitch in transgender women]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2023; 58:139-144. [PMID: 36748155 DOI: 10.3760/cma.j.cn115330-20220518-00275] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Objective: To evaluate the effect of Wendler Glottoplasty to elevate vocal pitch in transgender women. Methods: The voice parameters of pre-and 3-month post-surgery of 29 transgender women who underwent Wendler Glottoplasty in department of otorhinolaryngology head and neck surgery of Beijing Friendship Hospital from January, 2017 to October, 2020 were retrospectively analyzed. The 29 transgender women ranged in age from 19-47 (27.0±6.3) years old. Subjective evaluation was performed using Transsexual Voice Questionnaire for Male to Female (TVQMtF). Objective parameters included fundamental frequency (F0), highest pitch, lowest pitch, habitual volume, Jitter, Shimmer, maximal phonation time (MPT), noise to harmonic ratio (NHR) and formants frequencies(F1, F2, F3, F4). SPSS 25.0 software was used for statistically analysis. Results: Three months after surgery, the score of TVQMtF was significantly decreased [(89.9±14.7) vs. (50.4±13.6), t=11.49, P<0.001]. The F0 was significantly elevated [(152.7±23.3) Hz vs. (207.7±45.9) Hz, t=-6.03, P<0.001]. Frequencies of F1, F2 and F3 were significantly elevated. No statistical difference was observed in the frequencies of F4. The highest pitch was not significantly altered while the lowest pitch was significantly elevated [(96.8±17.7) Hz vs. (120.0±28.9) Hz, t=-3.71, P=0.001]. Habitual speech volume was significantly increased [(60.0±5.2) dB vs. (63.6±9.6) dB, t=-2.12, P=0.043]. Jitter, Shimmer, NHR and MPT were not obviously altered (P>0.05). Conclusions: Wendler Glottoplasty could notably elevate the vocal pitch, formants frequencies and degree of vocal femininity in transgender women without affecting phonation ability and voice quality. It can be an effective treatment modality for voice feminization.
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Affiliation(s)
- C Zhang
- Department of Otorhinolaryngology Head and Neck Surgery, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China
| | - Q Hou
- Department of Otorhinolaryngology Head and Neck Surgery, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China
| | - T T Guo
- Department of Otorhinolaryngology Head and Neck Surgery, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China
| | - J T Zhong
- Department of Otorhinolaryngology Head and Neck Surgery, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China
| | - H Ren
- Department of Otorhinolaryngology Head and Neck Surgery, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China
| | - G L Li
- Department of Otorhinolaryngology Head and Neck Surgery, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China
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Sun ZZ, Wang G, Wang L, Li GL, Liu HD, Li BW, Han HL, Zhou Y, Zhang YY, Zhang XL, Wu W. [The role of continuous 48 h oropharyngeal pH monitoring in the diagnosis of laryngopharyngeal reflux disease]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2022; 57:1191-1196. [PMID: 36319124 DOI: 10.3760/cma.j.cn115330-20220530-00318] [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 daily variation of LPR and the significance of 48-hour oropharyngeal pH monitoring in the diagnosis of LPRD. Methods: 72 subjects with suspected LPRD who were treated in our department from June 2018 to June 2021 were included. All patients were hospitalized to complete continuous 48-hour oropharyngeal Dx-pH monitoring. The consistency of Ryan index and W index and the correlation of various reflux parameters between the first and second 24-hour were compared. SPSS 24.0 was used for statistical analysis. Results: All 72 subjects successfully completed 48-hour oropharyngeal Dx-pH monitoring. Ryan index was positive in 11 cases (15.2%) in the first 24-hour, in 17 cases (23.6%) in the second 24-hour, in 5 cases (6.9%) both first and second, and in 23 cases (31.9%) in either 24-hour, Kappa=0.211 (P=0.064), 18 cases (25%) had inconsistent results of the first 24-hour and the second 24-hour, and there was no significant difference in the positive rate between the first and second (P=0.234). The number of positive cases in 48-hour monitoring increased by 109.1% compared with 24-hour monitoring.For W index, 49 cases (68.1%) were positive in the first 24-hourf 53 cases (73.6%) were positive in the second 24-hour, 42 cases (58.3%) were positive both first and second, and 58 cases (80.6%) were positive in either 24-hour, Kappa=0.477 (P<0.001), 16 cases (22.2%) had inconsistent results of the first and second, and there was no significant difference in the positive rate between the first and second (P=0.804). The number of positive cases in 48-hour monitoring increased by 18.4% compared with 24-hour monitoring. There was no significant difference in all the reflux parameters of first and second (P>0.05). The correlation comparison showed that the correlation of various reflux parameters in the upright position was lower than that in the supine position. Conclusion: Laryngeal reflux has daily variability. Extending the monitoring time of Dx-pH to 48-hour can help reduce the missed diagnosis caused by daily variability; the use of W index can reduce the influence of daily variability on the diagnostic results of LPRD.
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Affiliation(s)
- Z Z Sun
- Department of Otorhinolaryngology Head and Neck Surgery of PLA Strategic Suport Force Medical Center, Beijing 100101, China
| | - G Wang
- Research Department 4 of PLA Strategic Suport Force Medical Center, Beijing 100101, China State Environmental Protection Key Laboratory of Environmental Sense Organ Stress and Health, Beijing 100101, China
| | - L Wang
- Department of Otorhinolaryngology Head and Neck Surgery of PLA Strategic Suport Force Medical Center, Beijing 100101, China
| | - G L Li
- Department of Otorhinolaryngology Head and Neck Surgery of Beijing Friendship Hospital, Beijing 100050, China
| | - H D Liu
- Department of Otorhinolaryngology Head and Neck Surgery of PLA Strategic Suport Force Medical Center, Beijing 100101, China
| | - B W Li
- Department of Otorhinolaryngology Head and Neck Surgery of PLA Strategic Suport Force Medical Center, Beijing 100101, China
| | - H L Han
- Department of Otorhinolaryngology Head and Neck Surgery of PLA Strategic Suport Force Medical Center, Beijing 100101, China
| | - Y Zhou
- Department of Otorhinolaryngology Head and Neck Surgery of PLA Strategic Suport Force Medical Center, Beijing 100101, China
| | - Y Y Zhang
- Department of Otorhinolaryngology Head and Neck Surgery of PLA Strategic Suport Force Medical Center, Beijing 100101, China
| | - X L Zhang
- Department of Otorhinolaryngology Head and Neck Surgery of PLA Strategic Suport Force Medical Center, Beijing 100101, China
| | - W Wu
- Department of Otorhinolaryngology Head and Neck Surgery of PLA Strategic Suport Force Medical Center, Beijing 100101, China State Environmental Protection Key Laboratory of Environmental Sense Organ Stress and Health, Beijing 100101, China
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Wang J, Wei L, Li G, Bao Y, Tang Y, Zhang L, Zu Q, Zhou H, Wang J. Electroacupuncture for brachial plexus injury caused by fracture of the right greater tuberosity of the humerus and dislocation of the right shoulder joint: a case report. Acupunct Med 2022; 40:484-486. [PMID: 35579430 DOI: 10.1177/09645284221085578] [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: 11/16/2022]
Affiliation(s)
- JianZhu Wang
- College of Acupuncture and Tuina, Nanjing University of Chinese Medicine, Nanjing, China
| | - LiJun Wei
- Nanjing Maigaoqiao Community Health Service Center, Nanjing, China
| | - GuangLin Li
- Nanjing Integrated Traditional Chinese and Western Medicine Hospital, Nanjing, China
| | - YunFan Bao
- College of Acupuncture and Tuina, Nanjing University of Chinese Medicine, Nanjing, China
| | - YanDing Tang
- College of Acupuncture and Tuina, Nanjing University of Chinese Medicine, Nanjing, China
| | - Li Zhang
- Nanjing Maigaoqiao Community Health Service Center, Nanjing, China
| | - QiPing Zu
- Nanjing Maigaoqiao Community Health Service Center, Nanjing, China
| | - HanYu Zhou
- College of Acupuncture and Tuina, Nanjing University of Chinese Medicine, Nanjing, China
| | - Jing Wang
- Nanjing Maigaoqiao Community Health Service Center, Nanjing, China
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Ding XW, Zheng ZC, Zhao Q, Zhai G, Liang H, Wu X, Zhu ZG, Wang HJ, He QS, He XL, Du YA, Chen LC, Hua YW, Huang CM, Xue YW, Zhou Y, Zhou YB, Wu D, Fang XD, Dai YG, Zhang HW, Cao JQ, Li LP, Chai J, Tao KX, Li GL, Jie ZG, Ge J, Xu ZF, Zhang WB, Li QY, Zhao P, Ma ZQ, Yan ZL, Zheng GL, Yan Y, Tang XL, Zhou X. [A multi-center retrospective study of perioperative chemotherapy for gastric cancer based on real-world data]. Zhonghua Wei Chang Wai Ke Za Zhi 2021; 24:403-412. [PMID: 34000769 DOI: 10.3760/cma.j.cn.441530-20200111-00014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To explore the effect of perioperative chemotherapy on the prognosis of gastric cancer patients under real-world condition. Methods: A retrospective cohort study was carried out. Real world data of gastric cancer patients receiving perioperative chemotherapy and surgery + adjuvant chemotherapy in 33 domestic hospitals from January 1, 2014 to January 31, 2016 were collected. Inclusion criteria: (1) gastric adenocarcinoma was confirmed by histopathology, and clinical stage was cT2-4aN0-3M0 (AJCC 8th edition); (2) D2 radical gastric cancer surgery was performed; (3) at least one cycle of neoadjuvant chemotherapy (NAC) was completed; (4) at least 4 cycles of adjuvant chemotherapy (AC) [SOX (S-1+oxaliplatin) or CapeOX (capecitabine + oxaliplatin)] were completed. Exclusion criteria: (1) complicated with other malignant tumors; (2) radiotherapy received; (3) patients with incomplete data. The enrolled patients who received neoadjuvant chemotherapy and adjuvant chemotherapy were included in the perioperative chemotherapy group, and those who received only postoperative adjuvant chemotherapy were included in the surgery + adjuvant chemotherapy group. Propensity score matching (PSM) method was used to control selection bias. The primary outcome were overall survival (OS) and progression-free survival (PFS) after PSM. OS was defined as the time from the first neoadjuvant chemotherapy (operation + adjuvant chemotherapy group: from the date of operation) to the last effective follow-up or death. PFS was defined as the time from the first neoadjuvant chemotherapy (operation + adjuvant chemotherapy group: from the date of operation) to the first imaging diagnosis of tumor progression or death. The Kaplan-Meier method was used to estimate the survival rate, and the Cox proportional hazards model was used to evaluate the independent effect of perioperative chemo therapy on OS and PFS. Results: 2 045 cases were included, including 1 293 cases in the surgery+adjuvant chemotherapy group and 752 cases in the perioperative chemotherapy group. After PSM, 492 pairs were included in the analysis. There were no statistically significant differences in gender, age, body mass index, tumor stage before treatment, and tumor location between the two groups (all P>0.05). Compared with the surgery + adjuvant chemotherapy group, patients in the perioperative chemotherapy group had higher proportion of total gastrectomy (χ(2)=40.526, P<0.001), smaller maximum tumor diameter (t=3.969, P<0.001), less number of metastatic lymph nodes (t=1.343, P<0.001), lower ratio of vessel invasion (χ(2)=11.897, P=0.001) and nerve invasion (χ(2)=12.338, P<0.001). In the perioperative chemotherapy group and surgery + adjuvant chemotherapy group, 24 cases (4.9%) and 17 cases (3.4%) developed postoperative complications, respectively, and no significant difference was found between two groups (χ(2)=0.815, P=0.367). The median OS of the perioperative chemotherapy group was longer than that of the surgery + adjuvant chemotherapy group (65 months vs. 45 months, HR: 0.74, 95% CI: 0.62-0.89, P=0.001); the median PFS of the perioperative chemotherapy group was also longer than that of the surgery+adjuvant chemotherapy group (56 months vs. 36 months, HR=0.72, 95% CI:0.61-0.85, P<0.001). The forest plot results of subgroup analysis showed that both men and women could benefit from perioperative chemotherapy (all P<0.05); patients over 45 years of age (P<0.05) and with normal body mass (P<0.01) could benefit significantly; patients with cTNM stage II and III presented a trend of benefit or could benefit significantly (P<0.05); patients with signet ring cell carcinoma benefited little (P>0.05); tumors in the gastric body and gastric antrum benefited more significantly (P<0.05). Conclusion: Perioperative chemotherapy can improve the prognosis of gastric cancer patients.
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Affiliation(s)
- X W Ding
- Department of Gastric surgery, Tianjin Medical University Cancer Institute & Hospital, National Clinical Research Center for Cancer Prevention and Therapy, Tianjin 300060, China
| | - Z C Zheng
- Department of Gastric Surgery, Cancer Hospital of China Medical University (Liaoning Cancer Hospital and Institute), Shenyang 110042, China
| | - Q Zhao
- The Third Department of Surgery, The Fourth Hospital, Hebei Medical University, Shijiazhuang 050011, China
| | - G Zhai
- Department of General Surgery, Shanxi Provincial Tumor Hospital, Taiyuan 030013, China
| | - H Liang
- Department of Gastric surgery, Tianjin Medical University Cancer Institute & Hospital, National Clinical Research Center for Cancer Prevention and Therapy, Tianjin 300060, China
| | - X Wu
- Department of General Surgery, The First Medical Center, Chinese PLA General Hospital, Beijing 100853, China
| | - Z G Zhu
- Department of Surgery, Ruijin Hospital, Shanghai JiaoTong University School of Medicine, Shanghai Institute of Digestive Surgery, Shanghai Key Laboratory of Gastric Neoplasms, Shanghai 200025, China
| | - H J Wang
- Department of Gastrointestinal Surgery, Affiliated Tumor Hospital, Xinjiang Medical University, Urumqi 830011, China
| | - Q S He
- Department of General Surgery, Qilu Hospital of Shandong University, Jinan 250012, China
| | - X L He
- Department of General Surgery, Tangdu Hospital, The Air Force Medical University, Xi'an 710038, China
| | - Y A Du
- Department of Gastric Surgery, Zhejiang Cancer Hospital, Hangzhou 310022, China
| | - L C Chen
- Department of Gastrointestinal Surgery, Fujian Provincial Cancer Hospital, Fujian Medical University Cancer Hospital, Fuzhou 350014, China
| | - Y W Hua
- Department of General Surgery, The Affiliated Tumor Hospital of Zhengzhou University, Zhengzhou 450008, China
| | - C M Huang
- Department of Gastric Surgery, Fujian Medical University Union Hospital, Fuzhou 350004, China
| | - Y W Xue
- Department of Gastrointestinal Surgery, Harbin Medical University Cancer Hospital, Harbin 150081, China
| | - Y Zhou
- Department of Gastic Surgery, Afiliated CancerHospital, Fudan University, Shanghai 200030, China
| | - Y B Zhou
- Department of Gastrointestinal Surgery, Affiliated Hospital of Qingdao University, Qingdao 266003, China
| | - D Wu
- Department of Gastrointestinal Surgery, Second Affiliated Hospital, Zhejiang University, Hangzhou 310009, China
| | - X D Fang
- Department of Gastrointestinal Colorectal And Anal Surgery, China-Japan Union Hospital of Jilin University, Changchun 130033, China
| | - Y G Dai
- Department of Gastrointestinal Surgery, Yunnan Cancer Hospital, Kunming 650118, China
| | - H W Zhang
- Diagnosis and Treatment Center of Digestive Disease, Wuxi Mingci cardiovascular Hospital, Wuxi 214101, China
| | - J Q Cao
- Department of Gastrointestinal Surgery, Second Affiliated Hospital, Nanchang University, Nanchang 330006, China
| | - L P Li
- Department of Gastrointestinal Surgery, The Affiliated Provincial Hospital, Shandong First Medical University, Jinan 250021, China
| | - J Chai
- Department of Gastric Surgery, The Affiliated Shandong Tumor Hospital, Shandong University, Jinan 250117, China
| | - K X Tao
- Department of Gastrointestinal Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - G L Li
- Department of General Surgery, Jinling Hospital/General Hospital of Eastern Theater Command, School of Medicine, Nanjing University, Nanjing 210002, China
| | - Z G Jie
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Nanchang University, Nanchang 330006, China
| | - J Ge
- Department of Gastrointestinal Surgery Xiangya Hospital of Central South University, Changsha 410008, China
| | - Z F Xu
- Department of General Surgery, The Affiliated Hospital, Shandong Academy of Medical Sciences, Jinan 250031, China
| | - W B Zhang
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Xinjiang Medical University, Urumqi 830000, China
| | - Q Y Li
- Departerment of Abdominal Surgery, Jiangxi Cancer Hospital, Nanchang 330029, China
| | - P Zhao
- Departerment of Gastrointestinal Surgery, Sichuan Tumor Hospital, Chengdu 610041, China
| | - Z Q Ma
- Department of General Surgery, Peking Uninon Medical College (PUMC) Hospital, Chinese Academy of Medical Sciences (CAMS) and PUMC, Beijing 100730, China
| | - Z L Yan
- Department of Gastrointestinal Surgery, Ningbo First Hospital, Ningbo 315000, China
| | - G L Zheng
- Department of Gastric surgery, Tianjin Medical University Cancer Institute & Hospital, National Clinical Research Center for Cancer Prevention and Therapy, Tianjin 300060, China
| | - Y Yan
- Department of General Surgery, The First Medical Center, Chinese PLA General Hospital, Beijing 100853, China
| | - X L Tang
- Department of General Surgery, Qilu Hospital of Shandong University, Jinan 250012, China
| | - X Zhou
- The Third Department of Surgery, The Fourth Hospital, Hebei Medical University, Shijiazhuang 050011, China
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Li Y, Li G, Wang Z, Chen W, Wang H, Wang Y, Liu B. Resonance assignments of the cytoplasmic domain of ECF sigma factor W pathway protein YsdB from Bacillus subtilis. Biomol NMR Assign 2021; 15:103-106. [PMID: 33398628 DOI: 10.1007/s12104-020-09990-3] [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] [Subscribe] [Scholar Register] [Received: 10/15/2020] [Accepted: 11/20/2020] [Indexed: 06/12/2023]
Abstract
Bacterial sigma (σ) factor, along with RNA polymerase core enzyme, initiates gene transcription from specific promoter regions and therefore regulates clusters of genes in response to a particular situation. The extracytoplasmic function (ECF) σ factors are a class of alternative σ factors that are often associated with environmental signal transduction across the bacterial membrane, in which external signal triggers the release of active σ from the membrane-anchored anti-σ factor. Gram-positive model organism Bacillus subtilis (B. subtilis) has seven ECF σ factors: σM, σV, σX, σW, σY, σZ and σYlaC. Although all these ECF σ factors were found to be involved in B. subtilis antibiotic resistance, σW is among the most studied and considered to play a pivotal role in responding to antimicrobial stresses. σW is under tight control and remains deactivated until exposure to external stimuli, after which proteases PrsW and RasP cleave the specific anti-sigma factor-RsiW to release and activate σW. Membrane anchored protein YsdB is a negative regulator of this activation, possibly via its direct interaction with PrsW and/or RsiW. Importantly, YsdB is well conserved among Bacilli, including pathogenic bacteria like Bacillus cereus. In this study, we describe the chemical shift assignments of the cytoplasmic domain of YsdB (29-130) of B. subtilis in solution as a basis for further interaction studies and structure determination. The near-complete assignment and the solution structure that will follow could provide a further understanding in σW regulation.
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Affiliation(s)
- Yanqing Li
- BioBank, First Affiliated Hospital, School of Medicine, Xi'an Jiaotong University, Shaanxi, 710061, China
| | - GuangLin Li
- BioBank, First Affiliated Hospital, School of Medicine, Xi'an Jiaotong University, Shaanxi, 710061, China
| | - Zhihao Wang
- BioBank, First Affiliated Hospital, School of Medicine, Xi'an Jiaotong University, Shaanxi, 710061, China
- Department of Life Sciences, Faculty of Natural Sciences, Imperial College London, London, SW7 2AZ, UK
| | - Wei Chen
- BioBank, First Affiliated Hospital, School of Medicine, Xi'an Jiaotong University, Shaanxi, 710061, China
| | - Hongliang Wang
- BioBank, First Affiliated Hospital, School of Medicine, Xi'an Jiaotong University, Shaanxi, 710061, China
| | - Yawen Wang
- BioBank, First Affiliated Hospital, School of Medicine, Xi'an Jiaotong University, Shaanxi, 710061, China
| | - Bing Liu
- BioBank, First Affiliated Hospital, School of Medicine, Xi'an Jiaotong University, Shaanxi, 710061, China.
- Instrumental Analysis Center of Xi'an Jiaotong University, Shaanxi, China.
- Department of Life Sciences, Faculty of Natural Sciences, Imperial College London, London, SW7 2AZ, UK.
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9
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Liang H, Li GL, Liu J, Fu M, Huang H, Zhao K, Wei Y, Xiao J. The application value of PAX1 and ZNF582 gene methylation in high grade intraepithelial lesion and cervical cancer. Clin Transl Oncol 2020; 23:283-288. [PMID: 32514824 DOI: 10.1007/s12094-020-02416-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2020] [Accepted: 05/28/2020] [Indexed: 10/24/2022]
Abstract
PURPOSE To investigate the possibility of using the methylation level of PAX1/ZNF582 gene as molecular marker to differentiate the progression of cervical cancer. METHODS From January 2016 to March 2018, 150 patients, who were admitted to Cervical Disease Diagnosis and Treatment Center of Xuzhu Maternity and Child Care Hospital, were enrolled in this study. Patients were classified into chronic cervicitis (for 19 cases), low-grade squamous intraepithelial lesion (LSIL) (18 cases), high-grade squamous intraepithelial lesion (HSIL) (37 cases) and squamous cell carcinoma (SCC) (31 cases). All patients underwent several tests including Thin-prep cytology test (TCT), HPV DNA detection and detection of methylation level of PAX1/ZNF582 genes. RESULTS For diagnosis of HSIL, the area under curve (AUC) was 0.878 (95% CI 0.806 ~ 0.950); the threshold for PAX1 was 12.285, the sensitivity and specificity were 91.9% and 72.8%, respectively. The AUC of ZNF582 gene detection was 0.900 (95% CI 0.842 ~ 0.959), the threshold was 11.56, while the sensitivity and specificity were 97.3% and 76.7%, respectively. Among various tests we conducted, PAX gene detection methods showed the highest specificity (97.30%). PAX1/ZNF582 gene detection method demonstrated the highest accuracy. CONCLUSIONS For patients with high-grade cervical lesion and cervical cancer, the methylation level of PAX1/ZNF582 gene could be applied as a noteworthy biomarker for diagnosis and for cervical cancer classification.
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Affiliation(s)
- H Liang
- Xuzhou Maternity and Child Health Care Hospital, No. 46 Heping Road, Xuzhou, 221009, People's Republic of China.
| | - G L Li
- Xuzhou Maternity and Child Health Care Hospital, No. 46 Heping Road, Xuzhou, 221009, People's Republic of China
| | - J Liu
- Xuzhou Maternity and Child Health Care Hospital, No. 46 Heping Road, Xuzhou, 221009, People's Republic of China
| | - M Fu
- Xuzhou Maternity and Child Health Care Hospital, No. 46 Heping Road, Xuzhou, 221009, People's Republic of China
| | - H Huang
- Xuzhou Maternity and Child Health Care Hospital, No. 46 Heping Road, Xuzhou, 221009, People's Republic of China
| | - K Zhao
- Xuzhou Maternity and Child Health Care Hospital, No. 46 Heping Road, Xuzhou, 221009, People's Republic of China
| | - Y Wei
- Xuzhou Maternity and Child Health Care Hospital, No. 46 Heping Road, Xuzhou, 221009, People's Republic of China
| | - J Xiao
- Xuzhou Maternity and Child Health Care Hospital, No. 46 Heping Road, Xuzhou, 221009, People's Republic of China
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10
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Gao M, Yang TT, Li GL, Chen R, Liu HC, Gao Q, Wan KL, Feng SD. [Analysis on drug resistance-associated mutations of multi-drug resistant Mycobacterium tuberculosis based on whole-genome sequencing in China]. Zhonghua Liu Xing Bing Xue Za Zhi 2020; 41:770-775. [PMID: 32447923 DOI: 10.3760/cma.j.cn112338-20191111-00800] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To analyze the resistance mutational profiles of multi-drug resistant Mycobacterium tuberculosis in China and the correlation between major mutation types and genotypes based on the whole-genome sequencing data. Methods: Search and download of the genome-wide sequencing data of M. tuberculosis published in China by August 2019 on NCBI database were conducted. Mutation frequency of drug resistance-related gene loci based on whole-genome sequencing was used to predict the molecular susceptibility of strains, and the correlation between mutation types and genotypes was analyzed. Results: According to the results of molecular resistance and susceptibility profiles, 1 024 MDR strains were identified from 2 019 M. tuberculosis strains. The major mutation types of resistance-related genes to common drugs were katG S315T (73.2%, isoniazid), rpoB S450L (63.1%, rifampicin), rpsL K43R (70.0%, streptomycin), embB M306V (37.4%, ethambutol), pncA_promoter T (-11)C (7.9%, pyrazinamide), gyrA A90V (32.3%, fluoroquinolones), rrs A1401G (67.7%, second-line injection drugs), fabG1_promoter C (-15) T (87.0%, Ethionamide), folC I43T (30.4%, P-aminosalicylic acid). Among them, the frequencies of katG S315T, embB M306V, rpsL K43R, gyrA A90V in lineage 2 were significantly higher than those in lineage 4, and folC I43T was only found in lineage 2. The proportion of katG S315T was significantly higher in the ancient Beijing genotype compared to the modern genotype, in contrast, the proportion of rpsL K43R was significantly higher in modern Beijing genotype, the differences were significant (all P<0.05). Conclusions: The results showed the main mutation types of resistance-related genes of MDR strains to many commonly used anti-tuberculosis drugs in China based on whole-genome sequencing, providing a basis for the development of sensitive and specific rapid molecular detection methods. At the same time, it was also found that the major mutation types of MDR-related genes were related to the genotype of the strains.
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Affiliation(s)
- M Gao
- School of Public Health, University of South China, Hengyang 421001, China
| | - T T Yang
- School of Basic Medical Sciences, Fudan University, Shanghai 200032, China
| | - G L Li
- State Key Laboratory for Infectious Diseases Prevention and Control, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - R Chen
- School of Public Health, University of South China, Hengyang 421001, China
| | - H C Liu
- State Key Laboratory for Infectious Diseases Prevention and Control, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - Q Gao
- School of Basic Medical Sciences, Fudan University, Shanghai 200032, China
| | - K L Wan
- State Key Laboratory for Infectious Diseases Prevention and Control, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - S D Feng
- School of Public Health, University of South China, Hengyang 421001, China
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11
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Liu HJ, Li GL, Lei PC. [Effects of miR-144 on proliferation, apoptosis and cisplatin resistance by targeting MYCN in pediatric neuroblastoma]. Zhonghua Zhong Liu Za Zhi 2019; 41:516-521. [PMID: 31357838 DOI: 10.3760/cma.j.issn.0253-3766.2019.07.006] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the effects and mechanisms of miR-144 on proliferation, apoptosis and cisplatin (DDP) resistance of neuroblastoma cells. Methods: Real-time fluorescence quantitative PCR (RT-qPCR) was used to detect the mRNA expressions of miR-144 and MYCN in neuroblastoma cell lines, including SH-SY5Y and SK-N-SH, and human umbilical vein endothelial cells HUVEC. The miR-negative control, miR-144 mimics, si-negative control, si-MYCN, miR-144 mimics and pcDNA, miR-144 mimics and pcDNA-MYCN co-transfected SH-SY5Y cells were described as miR-NC, miR-144, si-NC, si-MYCN, miR-144+ pcDNA and miR-144+ pcDNA-MYCN group, respectively. The half maximal inhibitory concentration (IC(50)) and cell proliferation were detected by 3-(4, 5-dimethyl-2-thiazolyl)-2, 5-diphenyl-2H tetrazolium bromide (MTT) assay. The protein expressions of MYCN, p21, cyclin D1, Bax, Bcl-2 were analyzed by western blot. Cell apoptosis was detected by flow cytometry. The cell fluorescence activity was detected by double luciferase reporter gene assay. Results: Compared with HUVEC cells, the expressions of miR-144 in neuroblastoma cells SH-SY5Y and SK-N-SH significantly decreased, while the mRNA and protein expression of MYCN significantly increased. The IC(50) of DDP was 9.16 μg/ml in SH-SY5Y cells. The absorbance value in 490nm (A(490) value) of miR-144 group was 0.30±0.03, significantly lower than 0.46±0.03 of miR-NC group. The cell apoptotic rate of miR-144 group was 26.94%±2.01%, significantly higher than 9.68%±0.52% of miR-NC group. The IC(50) value of DDP in miR-144 group was 2.95±0.26, significantly lower than 9.23±0.61 of miR-NC group. The expressions of p21, cyclin D1, Bax, Bcl-2 in miR-NC and miR-144 group were 2.67±0.19, 0.41±0.04, 2.12±0.21, 0.18±0.01 and 1.01±0.07, 1.00±0.06, 1.00±0.05, 1.00±0.06, respectively, with statistical significance (all P<0.05). Knockdown of MYCN showed the similar effects with those of miR-144 overexpression in SH-SYSY cells. MiR-144 significantly inhibited the fluorescence activity of ectopic MYCN expressing cells and negatively regulated the expression of MYCN. Overexpression of MYCN can reverse the effects of miR-144 on proliferation inhibition, apoptosis promotion and sensitization of SH-SY5Y cells to DDP. Conclusion: MiR-144 inhibits proliferation, promotes apoptosis and enhances the sensitivity of neuroblastoma cells to DDP through targeting MYCN, which provides a potential treatment for neuroblastoma.
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Affiliation(s)
- H J Liu
- Department of Pediatrics, Henan People's Hospital, Zhengzhou 450000, China
| | - G L Li
- Department of Pediatrics, Henan People's Hospital, Zhengzhou 450000, China
| | - P C Lei
- Department of Hematology, Henan People's Hospital, Zhengzhou 450000, China
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12
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Han D, Sun CF, Li GL. P2534Prevalence and risk factors of acquired LQTS among pregnancy: a single-center study. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz748.0863] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
Prolonged QT intervals have been observed in pregnant women, especially those with twin pregnancy, which predisposes them to a high risk of ventricular arrhythmias.
Purpose
To evaluate the prevalence of acquired long QT syndrome (aLQTS) in hospitalized parturient women with single and twin pregnancy and search for potential risk factors.
Methods
Information about age-matched parturient women with single and twin pregnancy were retrospectively collected in our hospital from January 2016 to June 2018. The prevalence of aLQTS was evaluated. The common risk factors for corrected QT (QTc) prolongation were compiled, and multivariable logistic regression analysis was used to evaluate how each factor was related to aLQTS in such population.
Results
Totally 293 parturient women (147 twin pregnancy, 50.17%) were included. The prevalence of aLQTS was 72.70% in all cases, 53.15% in the single pregnancy, 93.20% in the twin pregnancy. The proportion of severely prolonged QTc was 36.18% in all cases, 8.22% in the single pregnancy and 63.95% in the twin pregnancy. The QTc interval was much longer in the twin pregnancy than in the single pregnancy with significant difference. Differences in systolic blood pressure, diastolic blood pressure, total cholesterol, serum uric acid, fetal weight, QRS, RV5+SV1, Tp-Te, Tp-Te/QT have been revealed to be statistically significant between the QTc-prolongation group and the QTc-normal group. The incidence of gestational hypertension and twin pregnancy in the QTc-prolongation group were more prevalent than in the QTc-normal group with significant difference. In the multivariable logistic regression analysis, gestational hypertension, twin pregnancy, increase of diastolic blood pressure, high total cholesterol, high serum uric acid, and heavy fetal weight were identified to be associated with QTc prolongation in parturient women.
Table 1. Risk factors significantly correlated with QTc prolongation in parturient women Index P value OR (95% CI) DBP (mmHg) 0.033* 1.052 (1.004 to 1.101) TC (mmol/L) 0.001** 1.442 (1.165 to 1.785) UA (μmol/L) 0.007** 1.004 (1.001 to 1.008) Fetal weight (g) <0.001** 1.001 (1.001 to 1.001) Hypertention (%) 0.029* 2.561 (1.099 to 5.967) Twin (%) <0.001** 12.618 (6.145 to 25.909)
Conclusion
To our knowledge, this is the first clinical study to evaluate the prevalence of aLQTS between single and twin pregnancy. The prevalence of aLQTS is much higher in the parturient women, particularly in twin pregnancy.
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Affiliation(s)
- D Han
- First Hospital of Medical College of Xi'an Jiaotong University, Xi'an, China
| | - C F Sun
- First Hospital of Medical College of Xi'an Jiaotong University, Xi'an, China
| | - G L Li
- First Hospital of Medical College of Xi'an Jiaotong University, Xi'an, China
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13
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Liu HJ, Li GL, Lei PC. [PDCD4 enhances the inhibitory effect of As(2)O(3) on the growth and NF-κB signaling pathway in neuroblastoma cells]. Zhonghua Zhong Liu Za Zhi 2019; 41:675-680. [PMID: 31550857 DOI: 10.3760/cma.j.issn.0253-3766.2019.09.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the inhibitory effect of programmed cell death factor 4 (PDCD4) on arsenic trioxide (As(2)O(3))-induced cell growth and nuclear factor kappa B (NF-κB) signaling pathway in neuroblastoma. Methods: The PDCD4 overexpression vector was transfected into neuroblastoma cells and detected by fluorescence quantitative PCR and Western blot. As(2)O(3) was used to treat PDCD4 overexpressing neuroblastoma cells. MTT assay was used to measure the proliferation. Colony formation assay was used to determine the cell clone forming ability. Apoptosis was measured by flow cytometry. Western blot was used to detect the expression of NF-κB p65 and cleaved caspase-3 protein in cells. Results: The transfection of PDCD4 overexpression vector significantly increased the expression level of PDCD4 in neuroblastoma cells. The cell survival rates of the control group, PDCD4 group, As(2)O(3) group and As(2)O(3)+ PDCD4 group were 100%, (72.14±5.20)%, (62.58±3.14)% and (40.87±2.47)%, respectively. The colony formation rates in these four groups were (91.25±8.36)%, (65.32±7.14)%, (57.23±5.28)% and (37.14±3.64)%, respectively. In addition, the cell apoptotic rates of these four groups were (3.57±0.24)%, (28.64±3.20)%, (36.41±4.58)% and (49.65±5.27)%, respectively. Therefore, overexpression of PDCD4 in the absence or presence of As(2)O(3) inhibited cell proliferation and clone formation ability, while promoted apoptosis. Furthermore, the expression levels of cleaved caspase-3 in the control group, PDCD4 group, As(2)O(3) group and As(2)O(3)+ PDCD4 group were 0.21±0.03, 0.30±0.02, 0.43±0.05 and 0.57±0.06, respectively. And the expression levels of NF-κB p65 protein were 0.68±0.04, 0.52±0.03, 0.43±0.04, and 0.32±0.02, respectively. Compared with the control group, the expression levels of NF-κB p65 protein in PDCD4 group, As(2)O(3) group and As(2)O(3)+ PDCD4 group were significantly decreased (P<0.05), whereas the expression level of cleaved Caspase-3 protein was significantly increased (P<0.05). The changes in As(2)O(3)+ PDCD4 group were more significant than those in PDCD4 group and As(2)O(3) groups (both P<0.05). Conclusion: PDCD4 enhances the inhibitory effect of As(2)O(3) on the growth and NF-κB signaling pathway in neuroblastoma cells.
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Affiliation(s)
- H J Liu
- Department of Pediatrics, Henan Provincial People's Hospital, Zhengzhou 450000, China
| | - G L Li
- Department of Pediatrics, Henan Provincial People's Hospital, Zhengzhou 450000, China
| | - P C Lei
- Department of Hematology, Henan Provincial People's Hospital, Zhengzhou 450000, China
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Niu S, Wang CX, Jia FJ, Jahejo AR, Li X, Ning GB, Zhang D, Ma HL, Hao WF, Gao WW, Zhao YJ, Gao SM, Li JH, Li GL, Yan F, Gao RK, Huo NR, Tian WX, Chen HC. The expression of prostaglandins-related genes in erythrocytes of broiler chicken responds to thiram-induced tibial dyschondroplasia and recombinant glutathione-S-transferase A3 protein. Res Vet Sci 2019; 124:112-117. [PMID: 30878632 DOI: 10.1016/j.rvsc.2019.03.004] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2018] [Revised: 02/26/2019] [Accepted: 03/07/2019] [Indexed: 02/06/2023]
Abstract
Tibial dyschondroplasia (TD) is a type of bone deformity found in fast-growing chickens, which induce inflammatory responses. Prostaglandins (PGs) implicate in bone formation and bone resorption, associated with inflammation in an autocrine/paracrine manner. This study used qRT-PCR and immunohistochemistry analysis to identify the expression patterns of PG-related genes in the erythrocytes of broiler chickens and explore the effects of thiram-induced TD and the recombinant glutathione-S-transferase A3 (rGSTA3) protein on the expression of PG-related genes: GSTA3, cyclooxygenase 2 (COX-2), prostaglandin D2 synthase (PTGDS), prostaglandin E synthase (PTGES), prostaglandin E2 receptor (PTGER) 3, PTGER4 and prostaglandin reductase 1 (PTGR1). Interestingly, the results showed that these seven PG-related genes expression was identified in the erythrocytes of broiler chicken, and thiram-induced TD suppressed the expression of these PG-related genes in the initial stage of TD and promoted their expression in TD recovery. These findings demonstrated that the immunoregulatory function of erythrocytes can be inhibited in the early stage of TD and promoted in the recovery stage by modulating the expression of PG-related genes. Further, the rGSTA3 protein can modulate the expression of PG-related genes in erythrocytes and participate in the recovery of TD.
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Affiliation(s)
- S Niu
- College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu 030801, China
| | - C X Wang
- College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu 030801, China
| | - F J Jia
- College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu 030801, China
| | - A R Jahejo
- College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu 030801, China
| | - X Li
- College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu 030801, China
| | - G B Ning
- College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu 030801, China
| | - D Zhang
- College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu 030801, China
| | - H L Ma
- College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu 030801, China
| | - W F Hao
- Taiyuan Center for Disease Control and Prevention, Taiyuan 030024, China
| | - W W Gao
- College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu 030801, China
| | - Y J Zhao
- College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu 030801, China
| | - S M Gao
- College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu 030801, China
| | - J H Li
- College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu 030801, China
| | - G L Li
- College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu 030801, China
| | - F Yan
- College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu 030801, China
| | - R K Gao
- College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu 030801, China
| | - N R Huo
- College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu 030801, China
| | - W X Tian
- College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu 030801, China.
| | - H C Chen
- College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu 030801, China; State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, China.
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15
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Zhao WL, Wu YH, Li HF, Li SY, Fan SY, Wu HL, Li YJ, Lü YL, Han J, Zhang WC, Zhao Y, Li GL, Qiao XD, Ren HT, Zhu YC, Peng B, Cui LY, Guan HZ. [Clinical experience and next-generation sequencing analysis of encephalitis caused by pseudorabies virus]. Zhonghua Yi Xue Za Zhi 2018; 98:1152-1157. [PMID: 29690727 DOI: 10.3760/cma.j.issn.0376-2491.2018.15.006] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [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 detect potential pathogens including pseudorabies virus in patients with encephalitis of unknown etiology in China and describe novel encephalitic entities. Methods: Patients with clinically suspected infectious encephalitis were enrolled in a multicenter study to identify the pathogens in PUMCH Encephalitis Program.Next-generation sequencing(NGS) of cerebrospinal fluid (CSF) was used in patients with encephalitis of unknown etiology enrolled from 2016 to 2017.The patients diagnosed as PRV encephalitis were studied to describe this novel entity. Results: The four patients(3 male, 1 male, 38-54 years old) had occupational exposure to raw park when working in the production or marketing of pork and at least one got injured during pork-cutting.Two of them were confirmed with NGS of CSF, and anti-PRV antibodies were positive in 3 patients whose serum was available for serological analysis.They all presented with an acute onset of fever, convulsion, loss of consciousness and respiratory failure within 1 to 4 days and rapidly deteriorated even on extensive treatment.All the patients needed ICU admission and 3 needed mechanical ventilation.Two patients also had bilateral retinitis.Neuroimaging revealed symmetric gray matter lesions including limbic system, basal ganglia and midbrain without obvious hemorrhage.Lumbar puncture revealed elevated intracranial pressure and lymphocytic pleocytosis [(6-64)×10(6)/L] of CSF.The patients failed to response to the treatment of acyclovir combined with intravenous immunoglobulin and steroids.Modified Rankin Score was 3, 5, 5 and 6 (died) for the 4 patients respectively on last follow-up. Conclusions: PRV could be a cause of severe encephalitis.The patients with suspected pseudorabies encephalitis (PRE) need to be tested for PRV DNA timely.Severe encephalitis with bilateral involvement of limbic system, basal ganglion, thalamus and midbrain in patient with occupational exposure indicate this emerging infectious encephalitis.
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Affiliation(s)
- W L Zhao
- Department of Neurology, the Affiliated Hospital of Chifeng University, Chifeng, Inner Mongolia Autonomous Region 024005, China
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Zhang Y, Wang JP, Wang XL, Tian H, Gao TT, Tang LM, Tian F, Wang JW, Zheng HJ, Zhang L, Gao XJ, Li GL, Wang XY. Computed tomography-quantified body composition predicts short-term outcomes after gastrectomy in gastric cancer. ACTA ACUST UNITED AC 2018; 25:e411-e422. [PMID: 30464692 DOI: 10.3747/co.25.4014] [Citation(s) in RCA: 50] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Background Malnutrition is a common and critical problem that influences outcome in cancer patients. Body composition reflects a patient's metabolic profile and physiologic reserves, which might be the true determinant of prognosis. In the present study, which aimed to identify valuable new prognostic indicators, we investigated the association between computed tomography-quantified body composition and short-term outcomes after gastrectomy for gastric cancer. Methods Skeletal muscle index, mean muscle attenuation, and ratio of visceral-to-subcutaneous adipose tissue area (vsr) were calculated from preoperative computed tomography images. Low skeletal muscle index, low mean muscle attenuation, and high vsr were respectively termed "sarcopenia," "myosteatosis," and "visceral obesity." The association of body composition with postoperative complications and serum markers of nutrition and inflammation after radical gastrectomy were analyzed. Results The overall complication rate was significantly higher in the sarcopenia (62.5% vs. 27.3%, p = 0.001) and myosteatosis groups (38.2% vs. 4%, p = 0.002). Patients with visceral obesity had a higher incidence of inflammatory complications (20.3% vs. 6.5%, p = 0.01). Multivariate logistic regression analysis demonstrated that sarcopenia (p = 0.013), myosteatosis (p = 0.017), and low serum retinol-binding protein (p = 0.019) were independent risk factors for overall complications. Compared with control subjects, patients with sarcopenia had lower postoperative levels of serum retinol-binding protein (p = 0.007), and patients with visceral obesity had higher levels of C-reactive protein (p = 0.026). Conclusions Sarcopenia, myosteatosis, and visceral obesity were significantly associated with increased rates of postoperative complications and affected the postoperative nutrition and inflammation status of patients with gastric cancer.
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Affiliation(s)
- Y Zhang
- Department of General Surgery, Jinling Hospital, Medical School of Nanjing University, Nanjing, P.R.C.,Department of Cardiothoracic Surgery, Jiangsu Province Hospital of Traditional Chinese Medicine, Nanjing University of Chinese Medicine, Nanjing, P.R.C
| | - J P Wang
- Jinling Clinical Medical College of Nanjing Medical University, Nanjing, P.R.C.,Department of Medical Imaging, Jinling Hospital, Medical School of Nanjing University, Nanjing, P.R.C
| | - X L Wang
- Department of General Surgery, Jinling Hospital, Medical School of Nanjing University, Nanjing, P.R.C
| | - H Tian
- Department of General Surgery, Jinling Hospital Affiliated to Southern Medical University, Nanjing, P.R.C
| | - T T Gao
- Department of General Surgery, Jinling Hospital, Medical School of Nanjing University, Nanjing, P.R.C
| | - L M Tang
- Changzhou No. 2 People's Hospital, The Affiliated Hospital of Nanjing Medical University, Changzhou School of Clinical Medicine of Nanjing Medical University, Changzhou, P.R.C
| | - F Tian
- Department of General Surgery, Jinling Hospital, Medical School of Nanjing University, Nanjing, P.R.C
| | - J W Wang
- Department of General Surgery, Jinling Hospital, Medical School of Nanjing University, Nanjing, P.R.C
| | - H J Zheng
- Intensive Care Unit, Sir Run Run Shaw Hospital, Medical School of Zhejiang University, Hangzhou, P.R.C
| | - L Zhang
- Department of General Surgery, Jinling Hospital, Medical School of Nanjing University, Nanjing, P.R.C
| | - X J Gao
- Department of General Surgery, Jinling Hospital, Medical School of Nanjing University, Nanjing, P.R.C
| | - G L Li
- Department of General Surgery, Jinling Hospital, Medical School of Nanjing University, Nanjing, P.R.C
| | - X Y Wang
- Department of General Surgery, Jinling Hospital, Medical School of Nanjing University, Nanjing, P.R.C
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Rao H, Wang XJ, Ma JX, Li QE, Li GL, Zou JB. Characterization of the complete chloroplast genome of Biondia chinensis (Apocynaceae: Asclepiadoideae: Asclepiadeae), a rare and threatened liana endemic to China. Mitochondrial DNA B Resour 2018; 3:763-764. [PMID: 33474314 PMCID: PMC7799909 DOI: 10.1080/23802359.2018.1491340] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2018] [Accepted: 06/18/2018] [Indexed: 12/02/2022] Open
Abstract
The complete chloroplast genome of Biondia chinensis, a rare liana of the Asclepiadoideae endemic to China, was determined in this study. It is classified as Vulnerable species because of the sharp decline in its population size due to the habitat destruction. The whole chloroplast genome was 160,308 bp long, comprising of a large single copy (LSC) region of 91,335 bp and a small single copy (SSC) region of 19,185 bp, which were separated by a pair of 24,894 bp long inverted repeat (IR) regions. It encoded a total of 131 genes, including 86 protein-coding genes, 37 tRNA genes, and eight rRNA genes. Most of the gene species appeared as a single copy, while 22 gene species appeared in double copies. The overall A + T content was 62.2%, while the corresponding values of the LSC, SSC, and IR regions were 63.9, 68.1, and 56.7%, respectively. Phylogenetic analysis suggested that, among all the species which have been analyzed B. chinensis was relatively close to Vincetoxicum rossisum.
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Affiliation(s)
- Hua Rao
- College of Life Sciences, Shaanxi Normal University, Xi’an, People’s Republic of China
| | - Xiao-Juan Wang
- MOE Key Laboratory of Bio-Resources and Eco-Environment, College of Life Science, Sichuan University, Chengdu, People’s Republic of China
| | - Jian-Xiang Ma
- College of Life Sciences, Shaanxi Normal University, Xi’an, People’s Republic of China
| | - Qi-En Li
- Tibetan Medicine Research Center of Qinghai University, Qinghai University Tibetan Medical College, Xining, People’s Republic of China
| | - Guang-Lin Li
- College of Life Sciences, Shaanxi Normal University, Xi’an, People’s Republic of China
| | - Jia-Bin Zou
- College of Life Sciences, Shaanxi Normal University, Xi’an, People’s Republic of China
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Ye H, Huang T, Ying ZF, Li GL, Che YC, Zhao ZM, Wang JF, Yang XL, Shi L, Jiang RJ, Liu XC, Mo ZJ, Li CG, Yang JS. [Comparing the immunogenicity and safety of sequential inoculation of sIPV followed by bOPV (Ⅰ+Ⅲ) in different dosage forms]. Zhonghua Yu Fang Yi Xue Za Zhi 2018; 52:43-49. [PMID: 29334707 DOI: 10.3760/cma.j.issn.0253-9624.2018.01.009] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [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 compare the safety and immunogenicity of two different sequential schedules of inactivated poliomyelitis vaccine made from Sabin strain (sIPV) followed by typeⅠ+Ⅲ bivalent oral poliovirus vaccine (bOPV) in Drug Candy (DC) form or liquid dosage form). Methods: This randomized, blinded, single center, parallel-group controlled trial was done from September 2015 to June 2016 in Liuzhou, Guangxi province. Healthy infants aged ≥2 months were eligible for enrollment and divided into 1sIPV+2bOPV or 2sIPV+1bOPV sequential schedules. According to the bOPV dosage form each sequential schedules, the subjects again were divided into drug candy(DC) form or liquid dosage form group, being 1sIPV+bOPV (DC)/1sIPV+2bOPV(liquid)/2sIPV+1bOPV(DC)/2sIPV+1bOPV(liquid). According to 0, 28, 56 d immunization schedule, Each group were given 3 doses. We recorded adverse events during the clinical trial (399 participants who receive at least one dose). 28 days post-Dose 3, we receive a total of 350 blood samples (excluding the quitters or subjects against trial plan), using cell culture trace against polio virus neutralization test Ⅰ, Ⅱ, Ⅲ neutralizing antibody (GMT), calculating the antibody positive rate.PolioⅠ,Ⅱand Ⅲ antibody titers were assessed by virus-neutralizing antibody assay and the seroconversion (4-fold increase in titer) from pre-Dose 1 to 28 days post-Dose 3 was calculated (total 350 samples) . Results: During the vaccination, the incidence of AEs in 1sIPV+2bOPV(DC), 1sIPV+2bOPV (liquid), 2sIPV+1bOPV(DC), 2sIPV+1bOPV (liquid) group were 79%, 76%, 80% and 74% (χ(2)=1.23, P=0.747) , respectively. The severe AEs in groups were 6%, 5%, 6% and 4% (χ(2)=0.57, P=0.903) , respectively, and none was considered to be vaccination related. 28 days after 3(rd) vaccination, the seroconversion rates in 1sIPV+2bOPV (DC), 1sIPV+2bOPV (liquid), 2sIPV+1bOPV (DC), 2sIPV+1bOPV (liquid) group, were 99%, 100%, 99% and 99% (χ(2)=0.94, P=0.815) , respectively, for type Ⅰ poliovirus; and 47%, 57%, 80%, 79% (χ(2)=31.56, P<0.001) , respectively, for type Ⅱ; and were 100%, 99%, 100%, 99% (χ(2)=2.02, P=0.568) , respectively, for type Ⅲ. In each group, the GMT of antibody against poliovirus typeⅠ were 4 539.68, 6 243.43, 6 819.53 and 7 916.29 (F=25.87, P<0.001) , respectively; Type Ⅱ were 12.98, 10.54, 63.75 and 84.21 (F=8.68, P=0.034) , respectively; Type Ⅲ were 1 172.55, 1 416.03, 2 648.89 and 3 250.75 (F=14.50, P=0.002) , respectively. Conclusion: On the same sequential schedules, there was no significant difference between the dosage forms, all of them showed good safety and immunogenicity. In the same dosage forms with different sequential schedules, the seroconversion rate was higher in 2 dose sIPV group than the 1 dose sIPV group, especially at the neutralizing antibody GMT level against polio type Ⅱ and Ⅲ after vaccination.
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Affiliation(s)
- H Ye
- Institute of Medical Biology, Chinese Academy of Medical Sciences, Pekin Union Medical College, Kunming 650118, China
| | - T Huang
- Guangxi Center for Disease Prevention and Control, Division of Vaccine Clinical Trial, Nanning 530028, China
| | - Z F Ying
- National Institute for Food and Drug Control, Division of Respiratory Virus Vaccines, Beijing 100050, China
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Li GL, Wang SM. [The development and status of bioartificial liver]. Zhonghua Wai Ke Za Zhi 2017; 55:957-959. [PMID: 29224272 DOI: 10.3760/cma.j.issn.0529-5815.2017.12.018] [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
Liver failure is a serious stage during liver disease development of which mobidity is high. There is no effective treatment at present.Artificial liver support system is one of the important methods to treat liver failure which includes non-biological artificial liver, biological artificial liver and hybrid artificial liver. Among the artificial liver devices. The bioartificial liver is the most similar artifical liver device to human liver in terms of detoxification, synthesis and metabolism currently.The complexity of human liver function makes the biological artificial liver facing great challenges in selection of liver seed cells, construction of bioreactor and the best combination with auxiliary device, which leads to the slow development of bioartificial liver. In order to provide theoretical support for the study of bioartificial liver, the current status and its development are reviewed in the following aspects, the source of seed cells, the construction of bioreactor, the combination of auxiliary devices and the clinical application of bioartificial liver in this article.
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Affiliation(s)
- G L Li
- Shanxi Medical University, Taiyuan 030000, China
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20
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Wei F, Wei Y, Li LF, Li GL, Wang GJ. [The value of B7-H4 and carcinoembryonic antigen in diagnosing the benign and malignant pleural effusion]. Zhonghua Zhong Liu Za Zhi 2017; 39:524-527. [PMID: 28728299 DOI: 10.3760/cma.j.issn.0253-3766.2017.07.009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To evaluate the value of combined detection of negative costimulatory molecule B7-H4 and carcinoembryonic antigen (CEA) in diagnosing malignant and benign pleural effusion. Methods: Ninety-seven pleural effusion specimen were collected, 55 of which were diagnosed as malignant pleural effusion and 42 were benign pleural effusion. Enzyme-linked immunosorbent assay(ELISA) was used to examine the concentration of B7-H4 and CEA in pleural effusion. Electro-chemiluminescence immunoassay was used to detect the CEA level in pleural effusion. Receiver operating characteristic (ROC) curve was established to analyze and evaluate the single or combined detection of B7-H4 and CEA in diagnosing malignant and benign pleural effusion. Results: The concentrations of B7-H4 and CEA in malignant pleural effusion (MPE) group were (60.08±35.04) ng/ml and (41.49±37.16) ng/ml, respectively, obviously higher than (27.26±9.55) ng/ml and (2.41±0.94) ng/ml of benign pleural effusion (BPE) group (both P<0.01). Area under curve (AUC) of B7-H4 was 0.884 in MPE groupand the diagnostic sensitivity and specificity were 81.8% and 90.5%, respectively, at the optimized cut off value of 37.25 ng/ml. Likewise, area under curve (AUC) of CEA was 0.954 and the sensitivity and specificity were 87.3% and 95.2%, respectively, at the cut off value of 4.18 ng/ml. When B7-H4 >37.25 ng/ml or CEA>4.18 ng/ml, the sensitivity of diagnosis as MPE was down-regulated to 90.9% and the specificity was elevated to 88.1%. When B7-H4 >37.25 ng/ml and CEA>4.18 ng/ml, the sensitivity of diagnosis as MPE was down-regulated to 78.2% and the specificity was elevated to 97.6%. The sensitivity and specificity of combined detection of B7-H4 and CEA to diagnose MPE were elevated to 90.9% and 97.6%, respectively. The level of B7-H4 in MPE and BPE were both positively correlated with CEA (r=0.670, P=0.001 in MPE and r=0.002, P=0.001 in BEP). Conclusions: B7-H4 is a potential tumor marker in diagnosing the benign and malignant pleural effusion. Although the diagnostic value of B7-H4 may not precede to CEA, the combined detection of B7-H4 and CEA can improve the diagnostic sensitivity and specificity of MPE.
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Affiliation(s)
- F Wei
- Department of Medical Oncology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - Y Wei
- Rehabilitation Department, the Seventh People's Hospital of Zhengzhou, Zhengzhou 450000, China
| | - L F Li
- Biotherapy Center, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - G L Li
- Department of Medical Oncology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - G J Wang
- Department of Medical Oncology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
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Li C, Li GL, Luo Q, Li SJ, Wang RB, Lou YL, Lyu JX, Wan KL. [A preliminary study on the molecular characteristics of D-cycloserine resistance of Mycobacterium tuberculosis]. Zhonghua Liu Xing Bing Xue Za Zhi 2017; 38:240-243. [PMID: 28231674 DOI: 10.3760/cma.j.issn.0254-6450.2017.02.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the relationship between D-cycloserine resistance and the gene mutations of alrA, ddlA and cycA of Mycobacterium (M.) tuberculosis, as well as the association between D-cycloserine resistance and spoligotyping genotyping. Methods: A total of 145 M. tuberculosis strains were selected from the strain bank. D-cycloserine resistant phenotypes of the strains were determined by the proportion method and the minimal inhibitory concentration was determined by resazurin microtiter assay. PCR amplification and DNA direct sequencing methods were used for the analysis of gene mutations. Relationship between the resistance phenotype and genotype was analyzed by chi-square test. Results: Of the 145 clinically collected strains, 24 (16.6%) of them were D-cycloserine resistant and 121 (83.4%) were sensitive. There were only synonymous mutations noticed on alrA, ddlA and cycA in sensitive strains. Of the 24 D-cycloserine resistant strains, 3 (12.5%) isolates' cycA and 1 (4.2%) isolates' alrA happened to be non-synonymous mutations, in which the codes were 188, 318 and 508 of cycA, and 261 of alrA, respectively. Results on drug sensitivity tests confirmed the minimal inhibitory concentration of the mutant strains were all increased to some degrees. The D-cycloserine resistant rates of 88 Beijing genotype and 57 non-Beijing genotype strains were 20.5% and 10.5% , respectively, but with no statistically significant difference (χ(2) =2.47, P>0.05). Conclusions: The non-synonymous mutations of alrA and cycA might contribute to one of the mechanisms of M. tuberculosis D-cycloserine resistance. M. tuberculosis Beijing genotype or non-Beijing genotype was not considered to be associated with the D-cycloserine resistance.
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Affiliation(s)
- C Li
- School of Laboratory Medicine and Life Science, Wenzhou Medical University, Wenzhou 325035, China
| | - G L Li
- Tuberculosis Branch, State Key Laboratory for Infectious Disease Prevention and Control, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - Q Luo
- School of Laboratory Medicine and Life Science, Wenzhou Medical University, Wenzhou 325035, China
| | - S J Li
- School of Laboratory Medicine and Life Science, Wenzhou Medical University, Wenzhou 325035, China
| | - R B Wang
- Tuberculosis Branch, State Key Laboratory for Infectious Disease Prevention and Control, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - Y L Lou
- School of Laboratory Medicine and Life Science, Wenzhou Medical University, Wenzhou 325035, China
| | - J X Lyu
- School of Laboratory Medicine and Life Science, Wenzhou Medical University, Wenzhou 325035, China
| | - K L Wan
- Tuberculosis Branch, State Key Laboratory for Infectious Disease Prevention and Control, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China; School of Laboratory Medicine and Life Science, Wenzhou Medical University, Wenzhou 325035, China
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Abstract
Orphan nuclear receptor TLX has been shown to play an essential role in regulating the self-renewal and proliferation of neural stem cells (NSCs). However, TLX overexpression in NSCs induces long-term NSC expansion and further leads to glioma initiation in mouse when combined with p53 mutations. Whether overexpression of TLX plays a role in glioma stem cell (GSC) proliferation and migration still remains largely unknown. In this study, we infected C6 cells, a special glioma cell line which is mainly composed of cancer stem cells(CSCs), with lentiviruses expressing GFP(LV-GFP) or GFP-T2A-TLX(LV-TLX) and then monitored cell proliferation and migration using the real-time analyzer system (RTCA, xCELLigence, Roche). We found that the cell index (CI) observed for the TLX overexpressing C6 cells showed a lower value than that of the LV-GFP transduced cells. And the MTT results correlated highly with the RTCA proliferation assessments. Furthermore, the expression of p21 was decreased while other downstream genes PTEN and p53 were not significantly changed in TLX overexpressing C6 cells . These findings strongly indicate that TLX overexpression has the ability to decrease the proliferating and migratory properties of C6 cells by targeting p21. Further, our results suggest that TLX overexpression may also have a similar inhibitory effect on GSC proliferation and migration.
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Cui Y, Du J, Wang JM, Xu L, Li GL. [Clinicopathologic study of chordoid glioma of third ventricle: a report of 5 cases]. Zhonghua Bing Li Xue Za Zhi 2016; 45:575-576. [PMID: 27510786 DOI: 10.3760/cma.j.issn.0529-5807.2016.08.016] [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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Diao Y, Li GL, Yu AQ, Zheng XW, Xie KQ, Wang YW, Zhou MQ, Ming J, Hu ZL. Cloning and characterization of the UBC gene from lotus (Nelumbo nucifera). Genet Mol Res 2016; 15:gmr8341. [PMID: 27525889 DOI: 10.4238/gmr.15038341] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Protein ubiquitination is extensively involved in the regulation of a considerable number of physiological processes in plant cells. E2 (ubiquitin-conjugating enzyme, UBC), one of the essential enzymes of eukaryotic ubiquitination, catalyzes protein ubiquitination together with E1 and E3. In this study, we cloned four full-length cDNA NnUBCs of Nelumbo nucifera. With the same coding sequence length of 459 bp and coding 153 amino acids, these four genes are highly homologous with the AtUBC1 and AtUBC2 of Arabidopsis thaliana. Quantitative fluorescence polymerase chain reaction showed that these four genes exhibited different expression patterns in different tissues of N. nucifera. Overall, the expression of NnUBC3 was the highest in all plant tissues. Tests of different stress treatments showed that NnUBC3 plays an important role in response to heat, salt, and drought stresses in N. nucifera. Moreover, transgenic Arabidopsis plants (Atubc1-1Atubc2-1 mutant) expressing NnUBC3 presented a wild-type phenotype, indicating that NnUBC3 performs the same function as AtUBC1 and AtUBC2.
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Affiliation(s)
- Y Diao
- College of Forestry and Life Sciences, Chongqing University of Arts and Sciences, Chongqing, China
| | - G L Li
- State Key Laboratory of Hybrid Rice, College of Life Sciences, Wuhan University, Wuhan, Hubei Province, China
| | - A Q Yu
- State Key Laboratory of Hybrid Rice, College of Life Sciences, Wuhan University, Wuhan, Hubei Province, China
| | - X W Zheng
- White Lotus Research Institute of Guangchang, Guangchang, Jiangxi Province, China
| | - K Q Xie
- White Lotus Research Institute of Guangchang, Guangchang, Jiangxi Province, China
| | - Y W Wang
- School of Pharmaceutical Sciences, Wuhan University, Wuhan, Hubei Province, China
| | - M Q Zhou
- Lotus Engineering Research Center of Hubei Province, Wuhan University, Wuhan, Hubei Province, China
| | - J Ming
- Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Z L Hu
- State Key Laboratory of Hybrid Rice, College of Life Sciences, Wuhan University, Wuhan, Hubei Province, China
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Li XX, Li GL, He JL. [The principle and application of TCR gene mutation test]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2016; 34:478-480. [PMID: 27514567 DOI: 10.3760/cma.j.issn.1001-9391.2016.06.025] [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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Chen HP, Deng SP, Dai ML, Zhu CH, Li GL. Molecular cloning, characterization, and expression profiles of androgen receptors in spotted scat (Scatophagus argus). Genet Mol Res 2016; 15:gmr7838. [PMID: 27173207 DOI: 10.4238/gmr.15027838] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Androgen plays critical roles in vertebrate reproductive systems via androgen receptors (ARs). In the present study, the full-length spotted scat (Scatophagus argus) androgen receptor (sAR) cDNA sequence was cloned from testis. The sAR cDNA measured 2448 bp in length with an open-reading frame of 2289 bp, encoding 763 amino acids. Amino acid alignment analyses showed that the sARs exhibited highly evolutionary conserved functional domains. Phylogenetically, the sARs clustered within the ARβ common vertebrate group. Real-time polymerase chain reaction (RT-PCR) revealed that sAR expression varied in level and distribution throughout the tissues of both females and males. sAR expression was detected during testicular development by quantitative RT-PCR. The results showed that the highest transcription of sARs was observed in the mid-testicular stage, and remained at a high expression level until the late-testicular stage. In addition, the effects of 17α-methyltestosterone (MT) and estrogen (E2) on the expression of sARs in ovaries were determined using quantitative RT-PCR. sAR expression increased at 12 and 24 h post-MT treatment and decreased with E2 treatment. The present study provides preliminary evidence indicating gonadal plasticity of spotted scat under exogenous steroidal hormone treatments. It also provides a theoretical basis for sex reversal and production of artificial pseudo-males for female monosex breeding.
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Affiliation(s)
- H P Chen
- Key Laboratory of Aquaculture in South China Sea for Aquatic Economic, Animal of Guangdong Higher Education Institutes, Fisheries College, Guangdong Ocean University, Zhanjiang, China
| | - S P Deng
- Key Laboratory of Aquaculture in South China Sea for Aquatic Economic, Animal of Guangdong Higher Education Institutes, Fisheries College, Guangdong Ocean University, Zhanjiang, China
| | - M L Dai
- Key Laboratory of Aquaculture in South China Sea for Aquatic Economic, Animal of Guangdong Higher Education Institutes, Fisheries College, Guangdong Ocean University, Zhanjiang, China
| | - C H Zhu
- Key Laboratory of Aquaculture in South China Sea for Aquatic Economic, Animal of Guangdong Higher Education Institutes, Fisheries College, Guangdong Ocean University, Zhanjiang, China
| | - G L Li
- Key Laboratory of Aquaculture in South China Sea for Aquatic Economic, Animal of Guangdong Higher Education Institutes, Fisheries College, Guangdong Ocean University, Zhanjiang, China
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Li GL, Chen HP, Deng SP, Ye M, Jiang S, Chan SF, Zhu CH. In vivo and in vitro inhibitory action of 17β-estradiol and environmental estrogen 4-nonylphenol on gonad-inhibiting hormone (GIH) expression in the eyestalks of Litopenaeus vannamei. Genet Mol Res 2015; 14:14056-65. [PMID: 26535720 DOI: 10.4238/2015.october.29.25] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
The gonad-inhibiting hormone (GIH) belongs to a neuropeptide family synthesized and released in an X-organ sinus gland complex of crustacean eyestalks. GIH inhibits crustacean ovarian maturation by suppressing vitellogenin (Vtg) synthesis, whereas estrogen is responsible for the stimulation of vitellogenesis (not established). In this study, the effects of 17β-estradiol (E2, 10(-6) M), estrogen receptor antagonist tamoxifen (TAM, 10(-6), 10(-7), and 10(-8) M), and the environmental estrogen nonylphenol (NP, 1 μg/L and 100 μg/L) on LvGIH expression in the eyestalks of shrimp were determined by quantitative real-time PCR. Results showed that LvGIH expression decreased significantly during the L. vannamei ovarian maturation cycle. E2 and NP significantly reduced LvGIH transcripts in vivo, but TAM neutralized the inhibitory action of E2 in a dose-dependent manner (P < 0.05). In addition, the LvGIH expression levels decreased significantly in a time-dependent manner (P < 0.05) when ovary fragments were cultured in vitro with E2. The results of this study suggested that estrogen regulates GIH expression in L. vannamei eyestalks. E2 promoted ovarian development not only by directly upregulating vitellogenesis in the hepatopancreas, but it was also capable of downregulating LvGIH expression, which indirectly resulted in the stimulation of L. vannamei vitellogenesis.
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Affiliation(s)
- G L Li
- Key Laboratory of Aquaculture in South China Sea for Aquatic Economic Animal of Guangdong Higher Education Institutes, Fisheries College, Guangdong Ocean University, Zhanjiang, China
| | - H P Chen
- Key Laboratory of Aquaculture in South China Sea for Aquatic Economic Animal of Guangdong Higher Education Institutes, Fisheries College, Guangdong Ocean University, Zhanjiang, China
| | - S P Deng
- Key Laboratory of Aquaculture in South China Sea for Aquatic Economic Animal of Guangdong Higher Education Institutes, Fisheries College, Guangdong Ocean University, Zhanjiang, China
| | - M Ye
- Key Laboratory of Aquaculture in South China Sea for Aquatic Economic Animal of Guangdong Higher Education Institutes, Fisheries College, Guangdong Ocean University, Zhanjiang, China
| | - S Jiang
- Key Laboratory of Aquaculture in South China Sea for Aquatic Economic Animal of Guangdong Higher Education Institutes, Fisheries College, Guangdong Ocean University, Zhanjiang, China
| | - S F Chan
- Key Laboratory of Aquaculture in South China Sea for Aquatic Economic Animal of Guangdong Higher Education Institutes, Fisheries College, Guangdong Ocean University, Zhanjiang, China
| | - C H Zhu
- Key Laboratory of Aquaculture in South China Sea for Aquatic Economic Animal of Guangdong Higher Education Institutes, Fisheries College, Guangdong Ocean University, Zhanjiang, China
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He PF, Zhang AQ, Wang XL, Qu L, Li GL, Li YP, Sun PL. Structure elucidation and antioxidant activity of a novel polysaccharide from Polyporus umbellatus sclerotia. Int J Biol Macromol 2015; 82:411-7. [PMID: 26476244 DOI: 10.1016/j.ijbiomac.2015.10.032] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2015] [Revised: 10/10/2015] [Accepted: 10/11/2015] [Indexed: 11/15/2022]
Abstract
A novel water-soluble polysaccharide PUP60S2, with a molecular weight of 1.44×10(4)Da, was obtained from the sclerotia of Polyporus umbellatus by hot water extraction, ethanol precipitation, anion-exchange and size-exclusion chromatography. PUP60S2 was a polysaccharide comprised of about 22.3% glucuronic acid. Monosaccharide composition analysis showed that PUP60S2 was only comprised of glucose and glucuronic acid. Reduction of carboxyl groups, sugar analysis, methylation analysis, together with one and two dimension NMR spectra disclosed that the backbone of PUP60S2 consisted of (1→6)-β-d-glucopyranosyl, every second of which was substituted at O-3 by side chains consisting of terminal β-d-Glcp, (1→3)-β-d-Glcp, (1→3)-β-d-GlcpA, (1→4)-β-d-Glcp and (1→4)-β-d-GlcpA units. The antioxidant activity assay in vitro showed that PUP60S2 exerted a significant scavenging effect on DPPH, hydroxyl radical and superoxide radical in a dose-dependent manner.
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Affiliation(s)
- Peng-Fei He
- College of Biological and Environmental Engineering, Zhejiang University of Technology, Hangzhou 310014, China
| | - An-Qiang Zhang
- Department of Food Science and Technology, Zhejiang University of Technology, Hangzhou 310014, China
| | - Xing-Li Wang
- Hangzhou Baishanzu Biotech Co., Ltd., Hangzhou 310052, China
| | - Liang Qu
- Hangzhou Baishanzu Biotech Co., Ltd., Hangzhou 310052, China
| | - Guang-Lin Li
- Department of Food Science and Technology, Zhejiang University of Technology, Hangzhou 310014, China
| | - Yan-Ping Li
- Department of Food Science and Technology, Zhejiang University of Technology, Hangzhou 310014, China
| | - Pei-Long Sun
- Department of Food Science and Technology, Zhejiang University of Technology, Hangzhou 310014, China.
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Abstract
Heterosis has been widely used in crop breeding and production. However, a shortage of genes known to function in heterosis significantly limits our understanding of the molecular basis underlying heterosis. Here, we report 740 differentially expressed genes (DEGs) in the leaves of the hybrid millet Zhang No.5 and its parents at the grain filling stage determined using Solexa Illumina digital gene expression. Of the 740 DEGs, 546 were from the hybrid and its parents and most were up-regulated in the hybrid. Particularly, a large number of DEGs related to starch and carbohydrate metabolism and 2 DEGs encoding chlorophyll a/b binding proteins were up-regulated in hybrid millet. Moreover, all DEGs were enriched in the biological process and molecular function, and no DEGs were found to be enriched in the cellular component of GO terms. Pathway enrichment using KEGG showed that several DEGs were enriched in the circadian rhythm pathway. Further analysis revealed that the altered circadian rhythm, which mediates photosynthesis and carbohydrate accumulation, may play an important role in heterosis of the hybrid millet.
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Affiliation(s)
- Z H Liu
- Institute of Genetics and Physiology, Hebei Academy of Agriculture and Forestry Sciences, Plant Genetic Engineering Center of Hebei Province, Shijiazhuang, Hebei Province, China
| | - H M Zhang
- Institute of Genetics and Physiology, Hebei Academy of Agriculture and Forestry Sciences, Plant Genetic Engineering Center of Hebei Province, Shijiazhuang, Hebei Province, China
| | - G L Li
- Institute of Genetics and Physiology, Hebei Academy of Agriculture and Forestry Sciences, Plant Genetic Engineering Center of Hebei Province, Shijiazhuang, Hebei Province, China
| | - Y M Zhang
- Institute of Genetics and Physiology, Hebei Academy of Agriculture and Forestry Sciences, Plant Genetic Engineering Center of Hebei Province, Shijiazhuang, Hebei Province, China
| | - H C Li
- Institute of Genetics and Physiology, Hebei Academy of Agriculture and Forestry Sciences, Plant Genetic Engineering Center of Hebei Province, Shijiazhuang, Hebei Province, China
| | - X L Guo
- Institute of Genetics and Physiology, Hebei Academy of Agriculture and Forestry Sciences, Plant Genetic Engineering Center of Hebei Province, Shijiazhuang, Hebei Province, China
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Cai W, Zhang JY, Li GL, Chang GP, Wei YL, Zhang HG, Lu JQ. Isolation and Purification of Sesquiterpene Lactones from Ixeris sonchifolia (Bunge) Hance by High-Speed Counter- Current Chromatography and Semi-Preparative High Performance Liquid Chromatography. TROP J PHARM RES 2015. [DOI: 10.4314/tjpr.v13i12.17] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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Zeng J, Gao H, Li GL, Sun J, Ma H. Comparison of Effects of Oligosaccharides on Physicochemical Properties of Corn Starch. TROP J PHARM RES 2014. [DOI: 10.4314/tjpr.v13i7.7] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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Zeng J, Gao H, Li GL. Effect of Sucrose Esters on the Physicochemical Properties of Wheat Starch. TROP J PHARM RES 2013. [DOI: 10.4314/tjpr.v12i5.4] [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: 11/17/2022] Open
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Chen WQ, Zheng RS, Zhang SW, Li N, Zhao P, Li GL, Wu LY, He J. Report of incidence and mortality in china cancer registries, 2008. Chin J Cancer Res 2013; 24:171-80. [PMID: 23359321 DOI: 10.1007/s11670-012-0171-2] [Citation(s) in RCA: 67] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2011] [Accepted: 06/22/2012] [Indexed: 01/14/2023] Open
Abstract
OBJECTIVE Annual cancer incidence and mortality in 2008 were provided by National Central Cancer Registry in China, which data were collected from population-based cancer registries in 2011. METHODS There were 56 registries submitted their data in 2008. After checking and evaluating the data quality, total 41 registries' data were accepted and pooled for analysis. Incidence and mortality rates by area (urban or rural areas) were assessed, as well as the age- and sex-specific rates, age-standardized rates, proportions and cumulative rate. RESULTS The coverage population of the 41 registries was 66,138,784 with 52,158,495 in urban areas and 13,980,289 in rural areas. There were 197,833 new cancer cases and 122,136 deaths in cancer with mortality to incidence ratio of 0.62. The morphological verified rate was 69.33%, and 2.23% of cases were identified by death certificate only. The crude cancer incidence rate in all areas was 299.12/100,000 (330.16/100,000 in male and 267.56/100,000 in female) and the age-standardized incidence rates by Chinese standard population (ASIRC) and world standard population (ASIRW) were 148.75/100,000 and 194.99/100,000, respectively. The cumulative incidence rate (0-74 years old) was of 22.27%. The crude incidence rate in urban areas was higher than that in rural areas. However, after adjusted by age, the incidence rate in urban was lower than that in rural. The crude cancer mortality was 184.67/100,000 (228.14/100,000 in male and 140.48/100,000 in female), and the age-standardized mortality rates by Chinese standard population (ASMRC) and by world population were 84.36/100,000 and 114.32/100,000, respectively. The cumulative mortality rate (0-74 years old) was of 12.89%. Age-adjusted mortality rates in urban areas were lower than that in rural areas. The most common cancer sites were lung, stomach, colon-rectum, liver, esophagus, pancreas, brain, lymphoma, breast and cervix which accounted for 75% of all cancer incidence. Lung cancer was the leading cause of cancer death, followed by gastric cancer, liver cancer, esophageal cancer, colorectal cancer and pancreas cancer, which accounted for 80% of all cancer deaths. The cancer spectrum varied by areas and sex in rural areas, cancers from digestive system were more common, such as esophageal cancer, gastric cancer and liver cancer, while incidence rates of lung cancer and colorectal cancer were much higher in urban areas. In addition, breast cancer was the most common cancer in urban women followed by liver cancer, gastric cancer and colorectal cancer. CONCLUSION Lung cancer, gastric cancer, colorectal cancer, liver cancer, esophageal cancer and female breast cancer contributed to the increased incidence of cancer, which should be paid more attention to in further national cancer prevention and control program. Different cancer control strategies should be carried out due to the varied cancer spectrum in different groups.
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Li HB, Yu S, Li GL, Deng H. Lead contamination and source in Shanghai in the past century using dated sediment cores from urban park lakes. Chemosphere 2012; 88:1161-1169. [PMID: 22537888 DOI: 10.1016/j.chemosphere.2012.03.061] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2011] [Revised: 03/15/2012] [Accepted: 03/20/2012] [Indexed: 05/31/2023]
Abstract
Lead contamination becomes of importance to urban resident health worldwide, especially for child health and growth. Undisturbed lake sediment cores are increasingly employed as a useful tool to backdate environmental contamination history. Five intact sediment cores collected from lakes in five urban parks were dated using (210)Pb and analyzed for total Pb content and isotope ratio to reconstruct the Pb contamination history over the last century in Shanghai, China. Total Pb content in the sediment cores increased by about 2- to 3-fold since 1900s. The profile of Pb flux in each sediment core revealed a remarkable increase of Pb contamination in Shanghai over the past century, especially in the latest three decades when China was experiencing a rapid economic and industrial development. Significant correlations were found between Pb fluxes in sediment cores and Pb emission from coal combustion in Shanghai. Coal combustion emission dominated anthropogenic Pb sources during the past century contributing from 52% to 69% of total Pb in cores, estimated by a three-end member model of Pb isotope ratios. Leaded gasoline emission generally contributed <30% of total Pb, which was banned by 1997 in the Shanghai region. Our results implicate that coal combustion-based energy consumption should be replaced, or at least partially replaced, to reduce health risks of Pb contamination in Shanghai.
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Affiliation(s)
- H B Li
- Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China
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Chi LJ, Lu HT, Li GL, Wang XM, Su Y, Xu WH, Shen BZ. Involvement of T helper type 17 and regulatory T cell activity in tumour immunology of bladder carcinoma. Clin Exp Immunol 2011; 161:480-9. [PMID: 20646003 DOI: 10.1111/j.1365-2249.2010.04215.x] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
T helper type 17 (Th17) and regulatory T cells (T(reg) ) play an important role in the pathogenesis of inflammation and autoimmune disorders. Recent studies have suggested that they also had an impact on tumour immunology. However, the relationship between Th17 and T(reg) cells in the pathogenesis of bladder carcinoma is still unclear. Flow cytometry was used to analyse the numbers, phenotype and cytokine production of Th17 cells in peripheral blood and tumour tissue from bladder carcinoma patients, in parallel with analysis of T(reg) cells. The suppressor capacity of T(reg) and the potential effects of interleukin (IL)-2 on the differentiation of Th17 and T(reg) cells in vitro were studied in a T cell stimulation and suppression assays. The results were as follows: Th17 cells were enriched in the tumours of patients with bladder carcinoma compared with the peripheral blood of patients and controls; patients with bladder carcinoma had a higher proportion of T(reg) cells in peripheral blood compared with healthy controls and nearly all patients examined showed a relative enrichment of tumour-infiltrating T(reg) with respect to peripheral blood; there appeared to be an inverse relationship between tumour-infiltrating Th17 and T(reg) cells; IL-2 could convert tumour-infiltrating T(reg) cells cultured in the presence of the autologous irradiated CD3(-) fraction into Th17 cells, down-regulate forkhead box P2 expression and suppressive capacity of T(reg) cells. This study is the first to define the frequency and characteristics of Th17 cells in bladder carcinoma. We suggest that the balance between Th17 and T(reg) cells may be involved in the development or progression of bladder carcinoma.
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Affiliation(s)
- L J Chi
- Department of Neurology, Second Affiliated Hospital of Harbin Medical University, Harbin, China
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37
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Wan D, Yuan S, Li GL, Neoh KG, Kang ET. Glucose biosensor from covalent immobilization of chitosan-coupled carbon nanotubes on polyaniline-modified gold electrode. ACS Appl Mater Interfaces 2010; 2:3083-3091. [PMID: 20964413 DOI: 10.1021/am100591t] [Citation(s) in RCA: 75] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
An amperometric glucose biosensor was prepared using polyaniline (PANI) and chitosan-coupled carbon nanotubes (CS-CNTs) as the signal amplifiers and glucose oxidase (GOD) as the glucose detector on a gold electrode (the Au-g-PANI-c-(CS-CNTs)-GOD biosensor). The PANI layer was prepared via oxidative graft polymerization of aniline from the gold electrode surface premodified by self-assembled monolayer of 4-aminothiophenol. CS-CNTs were covalently coupled to the PANI-modified gold substrate using glutaradehyde as a bifunctional linker. GOD was then covalently bonded to the pendant hydroxyl groups of chitosan using 1,4-carbonyldiimidazole as the bifunctional linker. The surface functionalization processes were ascertained by X-ray photoelectron spectroscopy (XPS) analyses. The field emission scanning electron microscopy (FESEM) images of the Au-g-PANI-c-(CS-CNTs) electrode revealed the formation of a three-dimensional surface network structure. The electrode could thus provide a more spatially biocompatible microenvironment to enhance the amount and biocatalytic activity of the immobilized enzyme and to better mediate the electron transfer. The resulting Au-g-PANI-c-(CS-CNTs)-GOD biosensor exhibited a linear response to glucose in the concentration range of 1-20 mM, good sensitivity (21 μA/(mM·cm(2))), good reproducibility, and retention of >80% of the initial response current after 2 months of storage.
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Affiliation(s)
- Dong Wan
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 10 Kent Ridge Crescent, Singapore
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Zhang SW, Chen WQ, Wei WQ, Li GL, Li N, Li YQ. [Ovary cancer mortality in China 2004 - 2005: results from the Third National Retrospective Sampling Survey of Death Causes]. Zhonghua Yu Fang Yi Xue Za Zhi 2010; 44:418-422. [PMID: 20654231] [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: 05/29/2023]
Abstract
OBJECTIVE To analyze the distribution characteristics and trend of ovary cancer mortality based on results of the Third National Retrospective Sampling Survey of Death Causes. METHODS Data of National Retrospective Sampling Survey for the years of 2004 - 2005 from 158 counties/cities/districts was used for the settings. A total of 69,690,241 person-year for female between 2004 and 2005 including 23,598,822 person-year in urban and 46,091,419 person-year in rural were respectively included in the study. Furthermore, the areas of east, middle, and west were divided into the subsets. And also the areas of urban and rural areas were divided into the subsets. The crude death rate and age-specific death rate and the age-standardized death rate by Chinese population of 1982 (CASR) and by world population of 1960 (WASR) were calculated. The historical comparison with the sampling survey of 1990 - 1992 (second time) was conducted, and the global comparison with some selected countries was performed. RESULTS The crude death rate for ovary cancer was 1.45/100 000 (1008/69 690 241) between 2004 and 2005, which was ranked the 12th and accounted for 1.45% (1008/69 667) of all sites of cancers. The CASR was 0.97/100 000 and the WASR was 1.26/100 000. The crude death rate of ovary cancer were 2.67/100 000 (630/23 598 822) and 0.82/100 000 (378/46 091 419) in urban and rural areas respectively, with the CASR of 1.62/100 000 and 0.59/100 000 in urban and rural areas respectively. Compared with the data from the second time (0.06/100 000 for crude death rate, 0.53/100 000 for CASR and 0.75% for proportion), the crude death rate increased by 141.07% and the CASR increased by 83.02%. The proportion of mortality was increased by 92.92%, which ranked from the 17th to the 12th. In the urban areas, the CASR of ovary cancer increased by 31.71% (1.23/100 000 vs 1.62/100 000), while by 118.52% in rural areas (0.27/100 000 vs 0.59/100 000) with an increasing trend more remarkable in rural than in urban. CONCLUSION Ovary cancer is not the leading site of cancer death-cause in China, its morality is higher in urban than in rural. It is necessary to pay more attention to ovary cancer in China.
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Affiliation(s)
- Si-Wei Zhang
- Cancer Hospital & Institute, Chinese Academy of Medical Sciences, National Office for Cancer Prevention and Control, Beijing 100021, China
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Huang L, Jiang T, Yuan F, Li GL, Liu EZ, Wang ZC. Correlations between molecular profile and tumor location in Chinese patients with oligodendroglial tumors. Clin Neurol Neurosurg 2008; 110:1020-4. [PMID: 18845382 DOI: 10.1016/j.clineuro.2008.06.020] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2008] [Revised: 05/20/2008] [Accepted: 06/27/2008] [Indexed: 11/16/2022]
Abstract
OBJECTIVE To investigate possible correlations between molecular alterations and tumor location in Chinese patients with oligodendroglial tumors. METHODS A series of 105 gliomas, including 42 oligoastrocytomas, and two control groups of 28 oligodendrogliomas and 35 astrocytomas, were retrospectively reviewed. In each case, the radiologic picture and loss of heterozygosity (LOH) on chromosome 1p and 19q detected by denaturing high-performance liquid chromatography (DHPLC) were analyzed. Correlations between molecular profile and tumor location were made by chi-square and Fisher's exact tests. RESULTS Oligodendroglial tumors located in the nontemporal lobes were significantly more likely to have combination of LOH 1p and LOH 19q than tumors arising in the insula, temporal lobe, and temporal with another lobe (p=0.001). Subgroup analysis confirmed this finding in oligodendrogliomas (p=0.006), but the difference did not reach significance in the oligoastrocytoma group, although the trend was similar (p=0.067). In contrast to the oligodendroglial tumors, we detected no association between molecular alterations and location for diffuse astrocytomas. CONCLUSION We conclude that molecular subsets of oligodendroglial tumors may arise preferentially in certain lobes of the brain, with tumors having LOH 1p and LOH 19q occurring most frequently in the nontemporal lobes. These findings suggest that molecular subsets of oligodendroglial tumors may arise from site-specific precursor cells, which has provided some information for the current management of these neoplasms in China.
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Affiliation(s)
- L Huang
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing 100050, PR China
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Li GL, Van Steeg TJ, Putter H, Van Der Spek J, Pavel S, Danhof M, Bouwstra JA. Cutaneous side-effects of transdermal iontophoresis with and without surfactant pretreatment: a single-blinded, randomized controlled trial. Br J Dermatol 2005; 153:404-12. [PMID: 16086757 DOI: 10.1111/j.1365-2133.2005.06741.x] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.3] [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: 11/30/2022]
Abstract
BACKGROUND Iontophoresis, a method that facilitates drug transport across skin by an external electrical field, offers the possibility for long-term transdermal delivery of compounds in a well-controlled manner. In general, the literature supports the contention that iontophoresis is a safe procedure. However, there are important medical issues concerning the epidermal and dermal effects of iontophoresis that have not been extensively investigated. Specific and strictly controlled studies on the dermal effect of iontophoresis are scarce. OBJECTIVES The aim of this study was to investigate the cutaneous side-effects of transdermal iontophoresis application in healthy human volunteers. METHODS This was a single-blinded, randomized and parallel design study. In one group (n=12) subjects were treated nonocclusively with a surfactant formulation followed by iontophoresis (3-h application at a current density of 250 microA cm(-2)). In another group (n=12) iontophoresis alone was performed. No drug was included in these studies. The corresponding passive treatments served as controls. Noninvasive methods including sensation record, transepidermal water loss (TEWL), skin colour and the visual scoring were used to assess cutaneous effects. RESULTS Tingling and itching were commonly experienced in the first 30 min of the current application. Iontophoresis in combination with the pretreatment induced significant increases in TEWL values and in skin redness, and resulted in slight to mild erythema and oedema compared with the control. Compared with the iontophoresis alone, the presence of surfactant pretreatment caused slightly more skin irritation (erythema and oedema) but did not further disturb the skin barrier function. CONCLUSIONS The transdermal iontophoresis challenges the skin barrier function and induces transient mild skin irritation, but does not cause any permanent damage to the skin when applied for 3 h at a current density of 0.25 mA cm(-2).
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Affiliation(s)
- G L Li
- Department of Pharmaceutical Technology, University of Leiden, Leiden, the Netherlands
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Liang SD, Xu CS, Zhou T, Liu HQ, Gao Y, Li GL. Tetramethylpyrazine inhibits ATP-activated currents in rat dorsal root ganglion neurons. Brain Res 2005; 1040:92-7. [PMID: 15804430 DOI: 10.1016/j.brainres.2005.01.076] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2004] [Revised: 01/15/2005] [Accepted: 01/21/2005] [Indexed: 10/25/2022]
Abstract
Tetramethylpyrazine (TMP) is one of the alkaloids contained in Ligustrazine which has been used in traditional Chinese medicine as an analgesic for injury and dysmenorrhea. ATP can elicit the sensation of pain. This study observed the effects of TMP on ATP-activated current (IATP) in rat DRG neurons. TMP (0.1-1 mM) concentration-dependently inhibited ATP (100 microM)-activated current in rat DRG neurons. The inhibitory time of ATP (100 microM)-activated current appeared at 15 s after preapplication of TMP and reached its peak at about 45 s. The dose-response curves for IATP in the absence and presence of 1 mM TMP showed that TMP (1 mM) shifted the concentration-response curve of IATP downward markedly and the two EC50 values were very close (75 vs. 82 microM), while the threshold value remained unchanged. Therefore, the inhibitory effect of TMP on IATP may be noncompetitive. TMP did not alter the reversal potential (0 mV) of ATP-activated current, indicating that the site of TMP action is on or near the exterior surface of channel protein and not within the channel pore. Externally applied TMP (1 mM) increases the inhibitory effect of chelerythrine (PKC inhibitor) contained in pipette solution on IATP. The site of TMP action may be the binding of TMP to an allosteric site on the large extracellular region of ATP receptor-ion channel complex (P2X receptors) or PKC site of the N-terminus of P2X receptors. The mechanism of TMP action may be the allosteric regulation via acting on the large extracellular region of ATP receptor-ion channel complex (P2X receptors) and promoting the phosphorylation of PKC site of the N-terminus of P2X receptors.
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Affiliation(s)
- S D Liang
- Department of Physiology, Jiangxi Medical College, Nanchang 330006, PR China.
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Li GL, de Vries JJ, van Steeg TJ, van den Bussche H, Maas HJ, Reeuwijk HJEM, Danhof M, Bouwstra JA, van Laar T. Transdermal iontophoretic delivery of apomorphine in patients improved by surfactant formulation pretreatment. J Control Release 2005; 101:199-208. [PMID: 15588905 DOI: 10.1016/j.jconrel.2004.09.011] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2004] [Accepted: 09/16/2004] [Indexed: 11/28/2022]
Abstract
The objective of the present study is to evaluate the efficacy and the safety of transdermal iontophoretic delivery of R-apomorphine, a potent dopamine agonist, in combination with surfactant pretreatment in patients with advanced Parkinson's disease. Iontophoresis patches were applied in 16 patients for 3.5 h, with 0.5 h of passive delivery followed by 3 h of current application at a current density of 250 microA/cm2. Eight of these patients were treated with a surfactant formulation prior to iontophoresis. The pharmacokinetics, pharmacodynamic effects, systemic and local side effects of R-apomorphine were assessed. The plasma concentration vs. time profiles upon iontophoresis of R-apomorphine were described successfully by a novel pharmacokinetic model. The model suggests that only 1.9% of the dose that has been released from the patch accumulated in the skin. The patients treated with the surfactant formulations showed a statistically significant increase of bioavailability (from 10.6+/-0.8% to 13.2+/-1.4%) and of the steady state input rate (from 75.3+/-6.6 to 98.3+/-12.1 nmol/cm2 h) compared to the control patients (iontophoresis without absorption enhancers). In five out of eight patients in the study group and in three out of eight patients in the control group, clinical improvement was observed.
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Affiliation(s)
- G L Li
- Department of Pharmaceutical Technology, Leiden Amsterdam Centre for Drug Research, University of Leiden, P.O. Box 9502, 2300 RA, Leiden, The Netherlands
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Abstract
In a previous in vitro study it has been shown that pretreatment with a water-based surfactant formulation results in a two-fold increase in transdermal iontophoretic transport of R-apomorphine compared to iontophoresis only. The aim of the study presented in this paper was to unravel the mechanisms involved in the increased iontophoretic delivery. Freeze fracture electron microscopy and cryo-scanning electron microscopy were used to visualise the ultrastucture of human stratum corneum after (i) application of the surfactant formulation, (ii) iontophoresis and (iii) application of the surfactant formulation followed by iontophoresis. Non-occlusive application of the surfactant formulation did not exert any detectable changes in the ultrastructure of the stratum corneum, except for swelling of the outermost corneocyte layers. Application of a current density of 0.5 mA/cm(2) for 9 h induced a swelling of the corneocytes and the formation of water pools that were occasionally present in the intercellular regions. Application of the surfactant formulation followed by iontophoresis resulted in a further swelling of the corneocytes and a frequent presence of water pools in the intercellular regions throughout the whole stratum corneum. The observed changes in the ultrastructure of the stratum corneum can explain the increased R-apomorphine transport during iontophoresis.
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Affiliation(s)
- A M de Graaff
- Department of Pharmaceutical Technology, Leiden Amsterdam Center for Drug Research, Gorlaeus Laboratories, University of Leiden, P.O. Box 9502, 2300 RA, Leiden, The Netherlands
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Affiliation(s)
- G L Li
- Department of Pharmaceutical Technology, Leiden Amsterdam Center for Drug Research, University of Leiden, The Netherlands
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Abstract
PURPOSE To examine the mechanisms of transdermal iontophoretic delivery of apomorphine. METHODS Anodal iontophoresis of R-apomorphine across human stratum corneum was determined in vitro. The effects on the flux of the following parameters were studied: stability of drug, pH of donor solution, concentration of NaCl, and type of Na+ co-ions. RESULTS Ascorbic acid was effective to prevent apomorphine degradation. The iontophoretic transport of apomorphine was strongly influenced by the pH of the donor formulation. Increasing the pH from 3 to 6 resulted in an increase in the iontophoretic apomorphine flux from 27.9+/-4.4 nmol/cm2*h to 78.2+/-6.9 nmol/cm2*h. Upon decreasing NaCl concentration from 8 to 2 g/L, the iontophoretic flux was not significantly changed. Replacing NaCl in the donor formulation by tetraethylammonium chloride or tetrabutylammonium chloride resulted in 1.3 fold greater steady-state flux. CONCLUSIONS For optimized apomorphine iontophoretic delivery, a constant pH of the donor formulation is of great importance. The results suggest that although flux enhancement during iontophoresis is largely due to the electrical potential gradient, secondary effects, such as convective flow and electroosmosis may also contribute.
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Affiliation(s)
- G L Li
- Department of Pharmaceutical Technology, Leiden Amsterdam Centre for Drug Research, University of Leiden, The Netherlands
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47
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Su Q, Li GL. [Clinical analysis of 8 cases of painful opthalmoplegia]. Hunan Yi Ke Da Xue Xue Bao 2001; 26:447, 465. [PMID: 12536497] [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: 02/28/2023]
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48
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Abstract
Modulation by melatonin of gamma-aminobutyric acid(A) (GABA(A)) receptor-mediated responses was studied in bipolar and amacrine-like cells acutely isolated from carp retina, using the whole-cell patch-clamp technique. Melatonin of 1 mM accelerated desensitization of the GABA(A) receptors at both bipolar and amacrine-like cells. In addition, 1 mM melatonin hardly changed the GABA(A) receptor-mediated response amplitude of bipolar cells, while it increased or decreased that of amacrine-like cells, depending on the concentration of GABA applied. These modulatory effects, which can not be blocked by luzindole, a melatonin receptor antagonist, may be due to the allosteric action caused by melatonin bound to a site of the GABA(A) receptors.
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Affiliation(s)
- G L Li
- Institute of Neurobiology, Fudan University and Shanghai Institute of Physiology, CAS, Shanghai 200433, People's Republic of China
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49
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Dong JH, Li GL, Wang J. [The treatment of periapical periodontitis of young permanent teeth after fixation of trauma displacement]. Shanghai Kou Qiang Yi Xue 2001; 10:87-8. [PMID: 14994096] [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: 04/29/2023]
Affiliation(s)
- J H Dong
- Department of Pediatric Dentistry, School of Stomatology,Ninth People's Hospital, Shanghai Second Medical University, Shanghai 200011, China
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50
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Yang HH, Wu CG, Xie GZ, Gu QW, Wang BR, Wang LY, Wang HF, Ding ZS, Yang Y, Tan WS, Wang WY, Wang XC, Qin M, Wang JH, Tang HA, Jiang XM, Li YH, Wang ML, Zhang SL, Li GL. Efficacy trial of Vi polysaccharide vaccine against typhoid fever in south-western China. Bull World Health Organ 2001; 79:625-31. [PMID: 11477965 PMCID: PMC2566475] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/20/2023] Open
Abstract
OBJECTIVE To test the efficacy of locally produced Vi vaccine over a time period of longer than one year. METHODS A double-blinded, randomized field trial was performed in Guangxi Zhuang Autonomous Region in south-western China, using 30 micrograms doses of locally produced Vi. Enrolled subjects were 3-50 years of age, although the majority (92%) were school-aged children, who have the highest rate of typhoid fever in this setting. A total of 131,271 people were systematically allocated a single dose of 30 micrograms of Vi polysaccharide or saline placebo. The study population was followed for 19 months, with passive surveillance conducted in the Ministry of Health and the Regional Health and Anti-epidemic Centre (HAEC). Clinically suspected cases of typhoid fever were confirmed by blood culture, or by serological reaction with O-antigen (Widal tests). FINDINGS After 19 months, there were 23 culture-confirmed cases of typhoid fever in the placebo group versus 7 cases in the Vi group (Protective efficacy (PE) = 69%; 95% CI = 28%, 87%). Most of the isolates were from school-aged children: 22 cases in the placebo group versus 6 in the Vi group (PE = 72%; 95% CI = 32%, 82%). No serious post-injection reactions were observed. The locally produced Vi polysaccharide vaccine showed levels of protective efficacy similar to those for Vi vaccine produced in industrial countries. CONCLUSION The slightly higher dose of vaccine did not seem to alter efficacy significantly in China.
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Affiliation(s)
- H H Yang
- Guangxi Health and Anti-epidemic Centre (GHAEC), 80 Taoyuan Road, Nanning, Guangxi 530021, China.
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