1
|
Xu XL, Lin X, Zhao LH, Cai T, Du XL. [Long-term prevention and control effects of orthokeratology lenses designed for small treatment zones on children and adolescents with myopia]. Zhonghua Yan Ke Za Zhi 2023; 59:444-451. [PMID: 37264574 DOI: 10.3760/cma.j.cn112142-20220929-00476] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Objective: To explore the characteristics of orthokeratology lenses designed for small correction zones and their effectiveness and safety in long-term prevention and control of myopia in children and adolescents. Methods: It was a prospective cohort study that included myopic children and adolescents who received corneal reshaping treatment at the Qingdao Eye Hospital of Shandong First Medical University between January 2019 and May 2020. The patients were randomly divided into two groups using computer-generated randomization, and were fitted with corneal reshaping lenses with small treatment zones and conventional designs, respectively. The uncorrected visual acuity, best-corrected visual acuity, refractive error, and axial length were measured before and after 6, 12, and 18 months of wearing the lenses. Corneal topography with the Pentacam was also performed, and the area and diameter of the corneal treatment zone were calculated using the Matlab software. Results: A total of 60 myopic patients (60 eyes) were enrolled, including 29 males and 31 females, with an age of (10.40±1.01) years and a spherical equivalent of (-2.88±0.42) D. There were 30 cases in the small correction zone group and 30 cases in the conventional group. There was no significant difference in uncorrected visual acuity and spherical equivalent between the two groups at each time point after treatment. The axial growth in the conventional group was (0.16±0.09) mm at 6 months after treatment, (0.28±0.17) mm at 12 months, and (0.37±0.20) mm at 18 months, whereas in the small treatment zone group it was (0.06±0.05) mm, (0.12±0.10) mm, and (0.18±0.14) mm, respectively. The myopia progression rate in the small treatment zone group was only 37.50%, 42.86%, and 48.64% of the conventional group at 6, 12, and 18 months, respectively. Corneal topography showed that the treatment area in the conventional group was (6.98±0.89) mm², while in the small treatment zone group it decreased by 23.2% [(5.36±0.73) mm²] (P<0.05). Correlation analysis revealed that the axial increase after 18 months of lens wearing was negatively correlated with the age before lens wearing (P<0.05), positively correlated with the corneal surface treatment zone size (P<0.05), and not correlated with the pupil diameter and spherical equivalent (all P>0.05). After the shaping treatment, the rate of adverse reaction, which was mild, in both groups was 10%, and the symptoms disappeared. Conclusion: Orthokeratology lenses with smaller treatment zones can significantly reduce the rate of axial length growth in children and adolescents compared to lenses with conventional treatment zones, without compromising treatment safety.
Collapse
Affiliation(s)
- X L Xu
- Eye Institute of Shandong First Medical University, Qingdao Eye Hospital of Shandong First Medical University, State Key Laboratory Cultivation Base, Shandong Provincial Key Laboratory of Ophthalmology, School of Ophthalmology, Shandong First Medical University, Qingdao 266071, China
| | - X Lin
- Affiliated Eye Hospital of Shandong University of Traditional Chinese Medicine, Shandong Engineering Technology Research Center of Visual Intelligence, Shandong Provincial Key Laboratory of Integrative Medicine for Prevention and Therapy of Ocular Disease, Jinan 250002, China
| | - L H Zhao
- Eye Institute of Shandong First Medical University, Qingdao Eye Hospital of Shandong First Medical University, State Key Laboratory Cultivation Base, Shandong Provincial Key Laboratory of Ophthalmology, School of Ophthalmology, Shandong First Medical University, Qingdao 266071, China
| | - T Cai
- Eye Institute of Shandong First Medical University, Qingdao Eye Hospital of Shandong First Medical University, State Key Laboratory Cultivation Base, Shandong Provincial Key Laboratory of Ophthalmology, School of Ophthalmology, Shandong First Medical University, Qingdao 266071, China
| | - X L Du
- Eye Institute of Shandong First Medical University, Qingdao Eye Hospital of Shandong First Medical University, State Key Laboratory Cultivation Base, Shandong Provincial Key Laboratory of Ophthalmology, School of Ophthalmology, Shandong First Medical University, Qingdao 266071, China
| |
Collapse
|
2
|
Li HG, Zhao LH, Liu JZ, Liu KP, Liu JB, Su ZJ, Gao YJ. Silencing circ_0000644 inhibits papillary thyroid cancer cell malignancy by combining with miR-671-5p to release the inhibition on ANXA2. J Endocrinol Invest 2023; 46:749-761. [PMID: 36224454 DOI: 10.1007/s40618-022-01930-3] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Accepted: 09/25/2022] [Indexed: 10/17/2022]
Abstract
BACKGROUND Papillary thyroid cancer (PTC) is life-threatening due to its malignant progression. Considerable evidence demonstrates that circular RNA (circRNA) regulates PTC development. This study aims to explore the mechanism of circ_0000644 modulating PTC malignant progression. METHODS The RNA levels of circ_0000644, microRNA-671-5p (miR-671-5p) and annexin A2 (ANXA2) were detected by quantitative real-time polymerase chain reaction. Western blot was performed to check protein expression. Cell proliferation and cell apoptosis were investigated by 5-ethynyl-29-deoxyuridine and flow cytometry. Angiogenic capacity, migration and invasion were analyzed by tube formation assay and transwell assay. The interaction between miR-671-5p and circ_0000644 or ANXA2 was identified by dual-luciferase reporter assay. Xenograft mouse model assay was performed to analyze the effect of circ_0000644 on tumor formation in vivo. RESULTS Circ_0000644 and ANXA2 expression was significantly upregulated, while miR-671-5p was downregulated in PTC tissues and cells when compared with control groups. Circ_0000644 knockdown inhibited PTC cell proliferation, tube formation, migration, and invasion, but induced apoptosis in vitro. Moreover, circ_0000644 knockdown led to delayed tumorigenesis in vivo. In addition, circ_0000644 acted as a miR-671-5p sponge and mediated PTC cell tumor properties through miR-671-5p. ANXA2 was identified as a target gene of miR-671-5p, and its overexpression relieved miR-671-5p-induced effects in PTC cells. Furthermore, circ_0000644 depletion inhibited ANXA2 production by combining with miR-671-5p. CONCLUSION Circ_0000644 depletion repressed PTC cell tumor properties through the miR-671-5p/ANXA2 axis.
Collapse
Affiliation(s)
- Hong-Guang Li
- Department of Thyroid Surgery, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, People's Hospital of Henan University, No. 7, Weiwu Road, Jinshui District, Zhengzhou City, 450003, Henan Province, China.
| | - Li-Hong Zhao
- Central Sterile Supply Department, Fuwai Central China Cardiovascular Hospital, People's Hospital of Zhengzhou University, Zhengzhou, 450003, Henan, China
| | - Jun-Zhao Liu
- Department of General Surgery, Zhengzhou First People's Hospital, Zhengzhou, 450003, Henan, China
| | - Kun-Peng Liu
- Department of Thyroid Surgery, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, People's Hospital of Henan University, No. 7, Weiwu Road, Jinshui District, Zhengzhou City, 450003, Henan Province, China
| | - Jian-Bo Liu
- Department of Radiation Oncology, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, Zhengzhou, 450003, Henan, China
| | - Zi-Jie Su
- Department of Thyroid Surgery, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, People's Hospital of Henan University, No. 7, Weiwu Road, Jinshui District, Zhengzhou City, 450003, Henan Province, China
| | - Yong-Ju Gao
- Department of Nuclear Medicine, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, Zhengzhou, 450003, Henan, China
| |
Collapse
|
3
|
Wu Q, Zhang CQ, Zhao LH, Wang GC. [A case of progressive jaundice after transjugular intrahepatic portosystemic shunt]. Zhonghua Gan Zang Bing Za Zhi 2023; 31:186-188. [PMID: 37137835 DOI: 10.3760/cma.j.cn501113-20220502-00235] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Affiliation(s)
- Q Wu
- Department of Gastroenterology, Provincial Hospital Affiliated to Shandong First Medical University, Jinan 250021, China
| | - C Q Zhang
- Department of Gastroenterology, Provincial Hospital Affiliated to Shandong First Medical University, Jinan 250021, China Shandong Provincial Hospital, Shandong University, Jinan 250021, China
| | - L H Zhao
- Shandong Provincial Hospital, Shandong University, Jinan 250021, China
| | - G C Wang
- Department of Gastroenterology, Provincial Hospital Affiliated to Shandong First Medical University, Jinan 250021, China Shandong Provincial Hospital, Shandong University, Jinan 250021, China
| |
Collapse
|
4
|
Chen HS, Cui Y, Li XQ, Wang XH, Ma YT, Zhao Y, Han J, Deng CQ, Hong M, Bao Y, Zhao LH, Yan TG, Zou RL, Wang H, Li Z, Wan LS, Zhang L, Wang LQ, Guo LY, Li MN, Wang DQ, Zhang Q, Chang DW, Zhang HL, Sun J, Meng C, Zhang ZH, Shen LY, Ma L, Wang GC, Li RH, Zhang L, Bi C, Wang LY, Wang DL. Effect of Remote Ischemic Conditioning vs Usual Care on Neurologic Function in Patients With Acute Moderate Ischemic Stroke: The RICAMIS Randomized Clinical Trial. JAMA 2022; 328:627-636. [PMID: 35972485 PMCID: PMC9382441 DOI: 10.1001/jama.2022.13123] [Citation(s) in RCA: 48] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
IMPORTANCE Preclinical and clinical studies have suggested a neuroprotective effect of remote ischemic conditioning (RIC), which involves repeated occlusion/release cycles on bilateral upper limb arteries; however, robust evidence in patients with ischemic stroke is lacking. OBJECTIVE To assess the efficacy of RIC for acute moderate ischemic stroke. DESIGN, SETTING, AND PARTICIPANTS This multicenter, open-label, blinded-end point, randomized clinical trial including 1893 patients with acute moderate ischemic stroke was conducted at 55 hospitals in China from December 26, 2018, through January 19, 2021, and the date of final follow-up was April 19, 2021. INTERVENTIONS Eligible patients were randomly assigned within 48 hours after symptom onset to receive treatment with RIC (using a pneumatic electronic device and consisting of 5 cycles of cuff inflation for 5 minutes and deflation for 5 minutes to the bilateral upper limbs to 200 mm Hg) for 10 to 14 days as an adjunct to guideline-based treatment (n = 922) or guideline-based treatment alone (n = 971). MAIN OUTCOMES AND MEASURES The primary end point was excellent functional outcome at 90 days, defined as a modified Rankin Scale score of 0 to 1. All end points had blinded assessment and were analyzed on a full analysis set. RESULTS Among 1893 eligible patients with acute moderate ischemic stroke who were randomized (mean [SD] age, 65 [10.3] years; 606 women [34.1%]), 1776 (93.8%) completed the trial. The number with excellent functional outcome at 90 days was 582 (67.4%) in the RIC group and 566 (62.0%) in the control group (risk difference, 5.4% [95% CI, 1.0%-9.9%]; odds ratio, 1.27 [95% CI, 1.05-1.54]; P = .02). The proportion of patients with any adverse events was 6.8% (59/863) in the RIC group and 5.6% (51/913) in the control group. CONCLUSIONS AND RELEVANCE Among adults with acute moderate ischemic stroke, treatment with remote ischemic conditioning compared with usual care significantly increased the likelihood of excellent neurologic function at 90 days. However, these findings require replication in another trial before concluding efficacy for this intervention. TRIAL REGISTRATION ClinicalTrials.gov Identifier: NCT03740971.
Collapse
Affiliation(s)
- Hui-Sheng Chen
- Department of Neurology, General Hospital of Northern Theatre Command, Shenyang, China
| | - Yu Cui
- Department of Neurology, General Hospital of Northern Theatre Command, Shenyang, China
| | - Xiao-Qiu Li
- Department of Neurology, General Hospital of Northern Theatre Command, Shenyang, China
| | - Xin-Hong Wang
- Department of Neurology, General Hospital of Northern Theatre Command, Shenyang, China
| | - Yu-Tong Ma
- Department of Neurology, Beipiao Central Hospital, Beipiao, China
| | - Yong Zhao
- Department of Neurology, Haicheng Chinese Medicine Hospital, Haicheng, China
| | - Jing Han
- Department of Neurology, Panjin Central Hospital, Panjin, China
| | - Chang-Qing Deng
- Department of Neurology, Dandong Central Hospital, Dandong, China
| | - Mei Hong
- Department of Neurology, China Railway 19th Bureau Group Central Hospital, Liaoyang, China
| | - Ying Bao
- Department of Neurology, Fuxin Second People’s Hospital, Fuxin, China
| | - Li-Hong Zhao
- Department of Neurology, Dandong People’s Hospital, Dandong, China
| | - Ting-Guang Yan
- Department of Neurology, Chaoyang Central Hospital, Chaoyang, China
| | - Ren-Lin Zou
- Department of Neurology, Wafangdian Third Hospital, Dalian, China
| | - Hui Wang
- Department of Neurology, Chinese People’s Liberation Army 230 Hospital, Dandong, China
| | - Zhuo Li
- Department of Neurology, Panjin Central Hospital, Panjin, China
| | - Li-Shu Wan
- Department of Neurology, Dandong First Hospital, Dandong, China
| | - Li Zhang
- Department of Neurology, Suizhong County Hospital, Huludao, China
| | - Lian-Qiang Wang
- Department of Neurology, Liaoyang County Stroke Hospital, Liaoyang, China
| | - Li-Yan Guo
- Department of Neurology, Fushun Second Hospital, Fushun, China
| | - Ming-Nan Li
- Department of Neurology, Huanren Manchu Autonomous County People’s Hospital, Benxi, China
| | - Dong-Qing Wang
- Department of Neurology, Panjin People’s Hospital, Panjin, China
| | - Qiang Zhang
- Department of Neurology, Fushun Central Hospital, Fushun, China
| | - Da-Wei Chang
- Department of Neurology, Sujiatun Stroke Hospital, Shenyang, China
| | - Hong-Li Zhang
- Department of Neurology, Taian County Chinese Medicine Hospital, Anshan, China
| | - Jing Sun
- Department of Neurology, Anshan Hospital, The First Affiliated Hospital of China Medical University, Anshan, China
| | - Chong Meng
- Department of Neurology, Liaoyang County Central Hospital, Liaoyang, China
| | - Zai-Hui Zhang
- Department of Neurology, Xiuyan County Central Hospital, Anshan, China
| | - Li-Ying Shen
- Department of Neurology, Tieling County Central Hospital, Tieling, China
| | - Li Ma
- Department of Neurology, The Affiliated Central Hospital of Shenyang Medical College, Shenyang, China
| | - Gui-Chun Wang
- Department of Neurology, Changtu County Central Hospital, Tieling, China
| | - Run-Hui Li
- Department of Neurology, The Affiliated Central Hospital of Shenyang Medical College, Shenyang, China
| | - Ling Zhang
- Department of Neurology, Dengta Central Hospital, Dengta, China
| | - Cheng Bi
- Department of Neurology, Dandong Central Hospital, Dandong, China
| | - Li-Yun Wang
- Department of Neurology, Liaoyang Petrochemical General Hospital, Liaoyang, China
| | - Duo-Lao Wang
- Department of Clinical Sciences, Liverpool School of Tropical Medicine, Liverpool, United Kingdom
| |
Collapse
|
5
|
Zhao LH, Liu Y, Xiao JY, Wang JX, Li XW, Cui Z, Gao J. Prognostic Value of Metabolic Syndrome in Patients With Non-ST Elevated Myocardial Infarction Undergoing Percutaneous Coronary Intervention. Front Cardiovasc Med 2022; 9:912999. [PMID: 35811732 PMCID: PMC9260082 DOI: 10.3389/fcvm.2022.912999] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2022] [Accepted: 05/23/2022] [Indexed: 12/12/2022] Open
Abstract
Objective We aim to investigate the prognostic effects of metabolic syndrome (MS) on patients with non-ST elevated myocardial infarction (NSTEMI) after percutaneous coronary intervention (PCI). Methods Patients with NSTEMI undergoing PCI were consecutively collected. According to the presence or absence of MS, they were divided into two groups and followed up for 1 year. The endpoint was major adverse cardiovascular events (MACE), including all-cause death, unstable angina hospitalization, heart failure (HF) hospitalization, non-fatal recurrent myocardial infarction (MI), and target lesion revascularization. Also, six subgroups were made according to gender, age, left ventricular ejection fraction (LVEF), Global Registry of Acute Coronary Events (GRACE) score, hypersensitive troponin (hsTNT), and several diseased vessels. Cox proportional hazard model was adopted to analyze the effect of MS on MACE in all the patients and different subgroups. Results A total of 1,295 patients were included in the current analysis and 660 (50.97%) of them had MS. About 88 patients were lost to follow-up, and the overall average follow-up was 315 days. MS was an independent risk factor for MACE (HR 1.714, CI 1.265–2.322, p = 0.001), all-cause death, heart failure (HF) hospitalization, and non-fatal recurrent MI. In the MS component, BMI ≥28 kg/m2 was positively associated with MACE. Subgroup analysis indicated the prognostic value of MS was more striking for patients with the following: age of >60, LVEF of ≤40%, GRACE of >140, multivessel disease, or hsTNT of >0.1 ng/ml. Conclusions The MS was a robust adverse prognostic factor in patients diagnosed with NSTEMI, especially among those of older age and at higher ischemic risk. A BMI of ≥28 kg/m2 independently predicted the occurrence of MACE. Prognosis may be improved by controlling abdominal obesity.
Collapse
Affiliation(s)
- Li-Hong Zhao
- Graduate School, Tianjin Medical University, Tianjin, China
- Cardiac Function Department, The First Affiliated Hospital of Baotou Medical College, Inner Mongolia University of Science and Technology, Baotou, China
| | - Yin Liu
- Department of Cardiology, Tianjin Chest Hospital, Tianjin, China
| | - Jian-Yong Xiao
- Department of Cardiology, Tianjin Chest Hospital, Tianjin, China
| | - Ji-Xiang Wang
- Department of Cardiology, Tianjin Chest Hospital, Tianjin, China
| | - Xiao-Wei Li
- Department of Cardiology, Tianjin Chest Hospital, Tianjin, China
| | - Zhuang Cui
- School of Public Health, Tianjin Medical University, Tianjin, China
| | - Jing Gao
- Tianjin Cardiovascular Institute, Tianjin Chest Hospital, Tianjin, China
- Thoracic Clinical College, Tianjin Medical University, Tianjin, China
- *Correspondence: Jing Gao
| |
Collapse
|
6
|
Zhao LH, Ma Q, Fu P, Mao CY. [Clinicopathological analysis of invasive stratified mucin-producing carcinoma of the uterine cervix]. Zhonghua Bing Li Xue Za Zhi 2022; 51:135-137. [PMID: 35152633 DOI: 10.3760/cma.j.cn112151-20210629-00470] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Affiliation(s)
- L H Zhao
- Department of Pathology, Daping Hospital, Army Medical University, Chongqing 400042, China
| | - Q Ma
- Department of Pathology, Daping Hospital, Army Medical University, Chongqing 400042, China
| | - P Fu
- Department of Pathology, Daping Hospital, Army Medical University, Chongqing 400042, China
| | - C Y Mao
- Department of Pathology, Daping Hospital, Army Medical University, Chongqing 400042, China
| |
Collapse
|
7
|
Li HG, Zhao LH, Lu A, Liu JB, Su ZJ, Wang XB, Gao YJ. [The mechanism of circ_0023990/miR-873-5p/ANXA2 axis regulating radiosensitivity and development of thyroid carcinoma]. Zhonghua Yi Xue Za Zhi 2021; 101:3329-3337. [PMID: 34758534 DOI: 10.3760/cma.j.cn112137-20210207-00379] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To explore the effect and possible mechanism of circ_0023990 on the radiosensitivity of thyroid cancer cells. Methods: qRT-PCR was used to detect the expression of circ_0023990 in the cancer tissues of 55 patients with thyroid cancer and thyroid cancer cell lines (TPC-1, KTC-1, FTC-133 and CAL-62), and the relationship between the expression of circ_0023990 in cancer tissues and the clinical characteristics of the patients were analyzed. Thyroid cancer cells TPC-1 and KTC-1 were divided into sh-circ_0023990 group, sh-NC group, sh-circ_0023990+anti-miR-873-5p group, sh-circ_0023990+anti-miR-NC group, miR-873-5p group, miR-NC group, miR-873-5p+pcDNA-ANXA2 group and miR-873-5p+pcDNA group, and then clone formation experiment was used to detect cell radiosensitivity. After each group of cells was irradiated with 4Gy radiation, the expression of γH2AX protein in the cells was detected by Western Blot. The dual luciferase reporter gene experiment verified the targeting relationship between circ_0023990 and miR-873-5p or miR-873-5p and ANXA2. Results: The expression of circ_0023990 in thyroid cancer tissues was higher than that in normal tissues (2.15±0.09 vs. 0.97±0.05, P<0.05), and its expression was closely related to tumor size, lymph node metastasis and TNM staging of patients with thyroid cancer (P<0.05). The expression of circ_0023990 in thyroid cancer cell lines (TPC-1, KTC-1, FTC-133 and CAL-62) were higher than that of normal thyroid cells HTori-3 (3.16±0.38, 2.63±0.28, 1.82±0.24, 1.71±0.22 vs. 1.00±0.10, all P<0.05). The survival scores of TPC-1 and KTC-1 cells in the sh-circ_0023990 group were significantly lower than those in the sh-NC group (P<0.05), and the sensitization ratios were 2.482, 1.643; The survival scores of TPC-1 and KTC-1 cells in the sh-circ_0023990+anti-miR-873-5p group were higher than those in the sh-circ_0023990+anti-miR-NC group (P<0.05), and the sensitization ratios were 0.305, 0.441, respectively. The survival scores of TPC-1 and KTC-1 cells in the miR-873-5p group were lower than those in the miR-NC group (P<0.05), and the sensitization ratios were 2.044, 1.653 respectively. The survival scores of TPC-1 and KTC-1 cells in the miR-873-5p+pcDNA-ANXA2 group was higher than that in the miR-873-5p+pcDNA group (P<0.05), and the sensitization ratios were 0.496, 0.686, respectively. The expression of γH2AX protein in TPC-1 and KTC-1 cells of the 4 Gy+sh-circ_0023990 group were higher than that in the 4 Gy+sh-NC group (2.68±0.27 vs. 1.87±0.25, 2.46±0.19 vs. 1.77±0.14; all P<0.05), but the expression of γH2AX protein in TPC-1 and KTC-1 cells of the 4 Gy+sh-circ_0023990+anti-miR-873-5p group were lower than that in the 4 Gy+sh-circ_0023990+anti-miR-NC group (1.13±0.09 vs. 1.69±0.09, 1.11±0.08 vs. 1.60±0.08; both P<0.05). The expression of γH2AX protein in TPC-1 and KTC-1 cells in the 4 Gy+miR-873-5p group were higher than that in the 4 Gy+miR-NC group (2.35±0.16 vs. 1.84±0.14, 2.26±0.12 vs. 1.77±0.13; both P<0.05), but the expression of γH2AX protein in TPC-1 and KTC-1 cells of the 4 Gy+miR-873-5p+pcDNA-ANXA2 group were lower than that in the 4 Gy+miR-873-5p+pcDNA group (1.96±0.12 vs. 2.41±0.12, 1.92±0.07 vs. 2.28±0.12; both P<0.05). circ_0023990 targeted the negative regulation of miR-873-5p, and ANXA2 was the target gene of miR-873-5p. Conclusion: circ_0023990 was highly expressed in thyroid cancer tissues and cell lines, and it may promote the radiotherapy resistance of thyroid cancer cells in vivo through regulating miR-873-5p/ANXA2 axis.
Collapse
Affiliation(s)
- H G Li
- Department of Thyroid Surgery,Henan Provincial People's Hospital, Zhengzhou, 450003, China
| | - L H Zhao
- Department of Disinfection Supply Center,Fuwai Central China Cardiovascular Hospital, Zhengzhou, 450003, China
| | - A Lu
- Department of Thyroid Surgery,Henan Provincial People's Hospital, Zhengzhou, 450003, China
| | - J B Liu
- Department of Radiotherapy,Henan Provincial People's Hospital, Zhengzhou, 450003, China
| | - Z J Su
- Department of Thyroid Surgery,Henan Provincial People's Hospital, Zhengzhou, 450003, China
| | - X B Wang
- Department of Nuclear Medicine,Henan Provincial People's Hospital, Zhengzhou, 450003, China
| | - Y J Gao
- Department of Nuclear Medicine,Henan Provincial People's Hospital, Zhengzhou, 450003, China
| |
Collapse
|
8
|
Ni J, Yao M, Wang LH, Yu M, Li RH, Zhao LH, Wang JC, Wang YZ, Wang X, Song HQ, Luo BY, Wang JW, Huang YN, Cui LY. Human urinary kallidinogenase in acute ischemic stroke: A single-arm, multicenter, phase IV study (RESK study). CNS Neurosci Ther 2021; 27:1493-1503. [PMID: 34510762 PMCID: PMC8611767 DOI: 10.1111/cns.13724] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2021] [Revised: 08/13/2021] [Accepted: 08/17/2021] [Indexed: 12/21/2022] Open
Abstract
Aims Human urinary kallidinogenase (HUK) has shown favorable efficacies in acute ischemic stroke (AIS) treatment. We sought confirmation of the safety and efficacy of HUK for AIS in a large population. Methods RESK study enrolled patients with AIS of anterior circulation to receive HUK infusion. The primary endpoint was the incidence of treatment‐emergent adverse events (AEs). Secondary endpoints assessed neurological and functional improvements and stroke recurrent rate. Results Of 1206 eligible patients, 1202 patients received at least one dose of HUK infusion and 983 (81.5%) completed the study. The incidence of treatment‐emergent AEs and serious AEs were 55.99% and 2.41%, respectively. Pre‐specified AEs of special interest occurred in 21.71% of patients, but the majority were mild and unrelated to therapy. Hypertension, age, treatment time, and drug combination were identified to be associated with drug‐related blood pressure reduction. Neurological and functional evaluations revealed favorable outcomes from baseline to post‐treatment assessment. The cumulative recurrence rate of stroke was 2.50% during the 90‐day assessment. Conclusion HUK had an acceptable safety and tolerability profile in AIS patients. Besides, HUK demonstrated the neurological and functional improvements in AIS, further confirming its clinical efficacy in a real‐world large population.
Collapse
Affiliation(s)
- Jun Ni
- Department of Neurology, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Ming Yao
- Department of Neurology, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Li-Hua Wang
- Department of Neurology, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Ming Yu
- Department of Neurology, The Affiliated Hospital of Jiangsu University, Zhenjiang, China
| | - Run-Hui Li
- Department of Neurology, Central Hospital Affiliated to Shenyang Medical College, Shenyang, China
| | - Li-Hong Zhao
- Department of Neurology, Dandong People's Hospital, Dandong, China
| | - Jia-Chun Wang
- Department of Neurology, No. 1 Hospital of Harbin, Harbin, China
| | - Yin-Zhou Wang
- Department of Neurology, Fujian Provincial Hospital, Fuzhou, China
| | - Xin Wang
- Department of Neurology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Hai-Qing Song
- Department of Neurology, Xuanwu Hospital Capital Medical University, Beijing, China
| | - Ben-Yan Luo
- Department of Neurology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Jia-Wei Wang
- Department of Neurology, Beijing Tongren Hospital, Capital Medical University, Beijing, China
| | - Yi-Ning Huang
- Department of Neurology, Peking University First Hospital, Beijing, China
| | - Li-Ying Cui
- Department of Neurology, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | | |
Collapse
|
9
|
Wang P, Zhao LH, Zhu XS. [Antagonistic Effect and Mechanism of Nano Titanium Dioxide and Cadmium on the Growth of Scenedesmus obliquus]. Huan Jing Ke Xue 2021; 42:4350-4357. [PMID: 34414733 DOI: 10.13227/j.hjkx.202101078] [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: 11/22/2022]
Abstract
The release of manufactured nanomaterials (MNMs) into the environment has raised concerns about combined toxicological risks, as MNMs could significantly alter the environmental behavior and fate of co-existing contaminants. Numerous studies have been published on the combined toxicity of MNMs and co-existing contaminants, but the potential mechanisms controlling the combined toxicity, especially the biological response mechanism, remain unclear. This study investigated the combined toxicity of nano-titanium dioxide (nTiO2), a typical MNM, and the heavy metal cadmium (Cd2+), using Scenedesmus obliquus as the test organism. The molecular mechanism was examined under different concentrations, using an equivalent dose (toxic ratio 1 ∶1) on S. obliquus. The results showed that the 72h-EC50 of nTiO2 and Cd2+ at the equivalent dose was significantly higher than that of single exposure, indicating an antagonistic effect. Further transcriptomics analysis revealed that the photosynthesis, chlorophyll metabolism, and starch and sucrose metabolism pathways involved in the energy metabolism of S. obliquus were significantly up-regulated in the presence of nTiO2. The arginine and proline metabolic pathways related to the anti-stress effect of algae cells also showed positive stimulation. The results of this study provide an important reference and a research basis for in-depth understanding of the environmental effects of MNMs and co-existing contaminants.
Collapse
Affiliation(s)
- Pu Wang
- Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, China.,School of Environment, Tsinghua University, Beijing 100084, China
| | - Li-Hong Zhao
- Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, China.,School of Environment, Tsinghua University, Beijing 100084, China
| | - Xiao-Shan Zhu
- Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, China.,School of Environment, Tsinghua University, Beijing 100084, China
| |
Collapse
|
10
|
Gao CQ, Shi HQ, Xie WY, Zhao LH, Zhang JY, Ji C, Ma QG. Dietary supplementation with acidifiers improves the growth performance, meat quality and intestinal health of broiler chickens. Anim Nutr 2021; 7:762-769. [PMID: 34466680 PMCID: PMC8379291 DOI: 10.1016/j.aninu.2021.01.005] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 08/23/2020] [Revised: 11/26/2020] [Accepted: 01/21/2021] [Indexed: 12/13/2022]
Abstract
This experiment was conducted to study the effects of dietary supplementation with acidifiers on the growth performance, meat quality, and intestinal health of broiler chickens. A total of 648 male Arbor Acres broiler chickens at 1 d old were randomly divided into 6 groups, and each group consisted of 6 replicates with 18 broilers per replicate. The dietary treatments were as follows: negative control (NC, the basal diet), NC + antibiotic (enramycin, 8 mg/kg, positive control [PC]), NC + phosphoric acid (PA, 0.1, 0.2, and 0.3 g/kg), and NC + lactic acid (LA, 0.3 g/kg). The feeding trial lasted for 42 d. The results showed that the feed-to-gain ratio of the NC + acidifier groups was lower than that of the NC and PC groups from 1 to 42 d (P < 0.05). Compared with the values in the NC group, the pH of breast muscle was significantly higher in the NC + PA (0.2 g/kg) and LA (0.3 g/kg) groups (P < 0.05), and the cooking loss was lower in the breast muscle of the NC + PA (0.1 g/kg) and LA (0.3 g/kg) groups (P < 0.05). In addition, the shear force of the breast muscle and thigh muscle and the pH value in the crop, gizzard and duodenum of the antibiotic and acidifier groups were significantly decreased (P < 0.05). Moreover, the trypsin, chymotrypsin, and lipase activities of the duodenum in the NC + PA (0.2 and 0.3 g/kg) groups, as well as the villus height-to-crypt depth (VH:CD) ratio of the duodenum in the NC + PA (0.1 g/kg) group was significantly greater (P < 0.05) compared with those in the NC group. Meanwhile, the number of total aerobic bacteria, Escherichia coli and Salmonella in the cecum of the NC + PA (0.1 g/kg) and LA (0.3 g/kg) groups were decreased (P < 0.05). Collectively, diet supplementation with acidifiers could improve the growth performance, meat quality, and intestinal health of broilers, in which the effects of PA (0.1 g/kg and 0.2 g/kg) are better than the other supplementations.
Collapse
Affiliation(s)
- Chun-Qi Gao
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, 100193, China.,College of Animal Science, South China Agricultural University, Guangzhou, 510642, China
| | - Hui-Qin Shi
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, 100193, China
| | - Wen-Yan Xie
- College of Animal Science, South China Agricultural University, Guangzhou, 510642, China
| | - Li-Hong Zhao
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, 100193, China
| | - Jian-Yun Zhang
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, 100193, China
| | - Cheng Ji
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, 100193, China
| | - Qiu-Gang Ma
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, 100193, China
| |
Collapse
|
11
|
Wang LM, Shao LW, Cheng B, Zhao HY, Zhao LH, Yao YY, Gui QP, Lu DH, Teng LH. [Chordoid glioma: a clinicopathological study]. Zhonghua Bing Li Xue Za Zhi 2021; 50:865-869. [PMID: 34344068 DOI: 10.3760/cma.j.cn112151-20210111-00025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To analyze the clinicopathological features of chordoid glioma. Methods: A total of 12 cases of chordoid gliomas from 2009 to 2020 in Xuanwu Hospital of Capital Medical University and General Hospital of Chinese People's Liberation Army were retrospectively analyzed. The clinical and imaging characteristics, pathologic and molecular characteristics were analyzed, and the relevant literature was reviewed. Results: All 12 patients (4 males and 8 females) aged from 25 to 67 years (mean 39 years) and mainly had a history of headache or/and vision loss. MRI showed that the lesions located in the third ventricle, and they showed abnormal enhancement. Pathologically, these 12 cases displayed the morphologic characteristics of chordoid gliomas, including papillary structures in two cases. Immunohistochemically, GFAP and vimentin were expressed in all 12 cases (12/12). TTF1 was also expressed in all cases (10/10). CD34 and CKpan were seen in 11 cases (11/12). EMA with dot-and/or-ring like positivity was seen in 9 cases (9/10). Tissues were available in nine chordoid gliomas for Sanger sequencing to detect PRKCA and IDH gene mutation, and eight cases (8/9) showed PRKCA gene D463H mutation. None of these cases showed IDH1 R132 and IDH2 R172 mutation. All 12 patients underwent surgery, and four were lost to follow up. The remaining eight patients were progression or recurrence free at last follow-up in January 2021. Conclusions: Chordoid gliomas have relatively distinguishing clinical and histopathological features. PRKCA gene mutation in chordoid gliomas can be considered as a biomarker for the diagnosis and differential diagnosis of chordoid gliomas, and may provide a direction for future targeted therapy.
Collapse
Affiliation(s)
- L M Wang
- Department of Pathology, Xuanwu Hospital, Capital Medical University, Beijing 100053, China
| | - L W Shao
- Department of Pathology, the First Medical Center of Chinese People's Liberation Army General Hospital, Beijing 100853, China
| | - B Cheng
- Department of Pathology, Rocket Force Medical Center, Beijing 100088, China
| | - H Y Zhao
- Genomics Research Platform Core Facilities Center, Capital Medical University, Beijing 100069, China
| | - L H Zhao
- Department of Pathology, Xuanwu Hospital, Capital Medical University, Beijing 100053, China
| | - Y Y Yao
- Department of Pathology, Xuanwu Hospital, Capital Medical University, Beijing 100053, China
| | - Q P Gui
- Department of Pathology, the First Medical Center of Chinese People's Liberation Army General Hospital, Beijing 100853, China
| | - D H Lu
- Department of Pathology, Xuanwu Hospital, Capital Medical University, Beijing 100053, China
| | - L H Teng
- Department of Pathology, Xuanwu Hospital, Capital Medical University, Beijing 100053, China
| |
Collapse
|
12
|
Zhang LY, Peng QY, Liu YR, Ma QG, Zhang JY, Guo YP, Xue Z, Zhao LH. Effects of oregano essential oil as an antibiotic growth promoter alternative on growth performance, antioxidant status, and intestinal health of broilers. Poult Sci 2021; 100:101163. [PMID: 34082177 PMCID: PMC8181178 DOI: 10.1016/j.psj.2021.101163] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2020] [Revised: 03/10/2021] [Accepted: 03/18/2021] [Indexed: 11/28/2022] Open
Abstract
This experiment was conducted to assess the comparative effects of dietary antibiotics and oregano essential oil (OEO) addition on growth performance, antioxidant status and intestinal health of broilers. A total of 384 one-day-old broilers were randomly allocated to 4 treatments with 6 replicates of 16 broilers each. The 4 treatments were: an antibiotic-free control diet (control), control + 20 mg/kg colistin sulfate and 20 mg/kg virginiamycin (antibiotics), control + 200 mg/kg natural oregano essential oil (NOEO), and control + 200 mg/kg synthetic oregano essential oil (SOEO). The experiment lasted for 42 d. Results showed that birds fed with OEO had greater (P < 0.05) average daily gain (ADG) and lower (P < 0.05) feed conversion ratio (FCR) than those fed with control diet during d 1 to 21. Besides, birds fed with NOEO had the greatest (P < 0.05) ADG in the four groups during d 22 to 42. The serum oxidative stress parameters showed that OEO improved (P < 0.05) the activities of glutathione peroxidase (GSH-Px), superoxide dismutase (SOD) and glutathione reductase (GR) of birds on day 21 and the activity of total antioxidant capacity (T-AOC) of birds on d 42. Relative to control, NOEO increased (P < 0.05) the activity of T-AOC in jejunum and decreased (P < 0.05) the level of malondialdehyde (MDA) in serum and jejunum. Moreover, OEO supplementation increased (P < 0.05) the concentrations of sIgA in duodenum and jejunum, Lactobacillus and total anaerobes in cecum, as well as activities of trypsin, chymotrypsin, lipase and amylase in duodenum, but restrained (P < 0.05) the amount of Escherichia coli. The NOEO supplementation increased (P < 0.05) total anaerobes of broilers on d 42 and the villus height to crypt depth ratio (VH/CD) of ileum. These results suggest that OEO improved antioxidant status and intestinal health of broilers which contributed to the growth performance improvement of broilers. Dietary OEO supplementation can be a promising alternative to antibiotic growth promoters for improving poultry production.
Collapse
Affiliation(s)
- L Y Zhang
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100193, PR China; Henan Agricultural Foreign Economic Cooperation Center, Zhengzhou, PR China
| | - Q Y Peng
- Kemin (China) Technologies Co. Ltd., Zhuhai 519040, PR China
| | - Y R Liu
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100193, PR China
| | - Q G Ma
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100193, PR China
| | - J Y Zhang
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100193, PR China
| | - Y P Guo
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100193, PR China
| | - Z Xue
- Kemin (China) Technologies Co. Ltd., Zhuhai 519040, PR China
| | - L H Zhao
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100193, PR China.
| |
Collapse
|
13
|
Zhao LH, Li J. [Correlation between expression of long chain non-coding RNA00707 and clinicopathological features of breast cancer]. Zhonghua Bing Li Xue Za Zhi 2021; 50:667-669. [PMID: 34078060 DOI: 10.3760/cma.j.cn112151-20210122-00068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- L H Zhao
- Department of Pathology, Beijing Civil Aviation General Hospital, Beijing 100123, China
| | - J Li
- Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100005, China
| |
Collapse
|
14
|
Yang H, Liu YJ, Ye JL, Zhao LH, Li LL, Hou XL. Evaluation of sleep disorder in orthopedic trauma patients: a retrospective analysis of 1129 cases. J Orthop Surg Res 2021; 16:344. [PMID: 34051808 PMCID: PMC8164244 DOI: 10.1186/s13018-021-02487-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/08/2021] [Accepted: 05/13/2021] [Indexed: 02/08/2023] Open
Abstract
Background In the trauma center wards, it is not unusual for patients to have sleep disorders, especially patients with an acute injury. Meanwhile, there is substantial evidence that sleep disorder is a predictor of depression and is an important feature of posttraumatic stress disorder. Methods All orthopedic trauma patients confined in a trauma ward in West China Hospital of Sichuan University between April 2018 and July 2019 were included in this retrospective study. Patients with mental impairment or craniocerebral injuries were excluded from the study. Basic demographic data and the Injury Severity Score (ISS) classification based on medical records were collected. The Pittsburgh sleep quality index (PSQI) was used to evaluate sleep quality, the visual analog scale (VAS) was used to evaluate physical pain, and the Barthel Index (BI) was used to evaluate activities of daily living (ADL). Univariate linear regression analysis and multivariate linear regression analysis were used to identify independently related factors. Results The average PSQI score was 6.3 (± 4.0). A total of 581 (51.4%) patients had a PSQI score > 5, indicating the presence of sleep disorders. The PSQI score was > 10 in 174 (15.4%) patients. Univariate statistical analysis showed that age, sex, education, ADL, and ISS classification were associated with increased PSQI scores. Marital status and pain were not associated with increased PSQI scores. When we used multivariate analysis to control for confounding variables, sex, ADL, and ISS classification remained independently associated with PSQI (P = 0.002, < 0.000, and 0.002, respectively). Conclusions In our study, sleep disorders were common (51.4% with PSQI > 5) and serious (15.4% with PSQI > 10) in patients with traumatic orthopedic injury. The following factors were closely associated with sleep disorders: sex, ADL, and ISS classification. Moreover, age and educational attainment have an independent impact on sleep quality. Unexpectedly, the VAS score for pain was not independently associated with the seriousness of sleep quality, which may be related to preemptive and multimodal analgesia. Further studies are required to clarify this ambiguity.
Collapse
Affiliation(s)
- Hai Yang
- Department of Orthopedics, West China Hospital of Sichuan University, Chengdu, Sichuan, People's Republic of China
| | - Yi-Jia Liu
- Department of Orthopedics, West China Hospital of Sichuan University, Chengdu, Sichuan, People's Republic of China.,School of Nursing, West China Hospital of Sichuan University, Chengdu, Sichuan, People's Republic of China
| | - Jia-Lu Ye
- Mental Health Center, West China Hospital of Sichuan University, Chengdu, Sichuan, People's Republic of China
| | - Li-Hong Zhao
- Department of Orthopedics, West China Hospital of Sichuan University, Chengdu, Sichuan, People's Republic of China
| | - Ling-Li Li
- Department of Orthopedics, West China Hospital of Sichuan University, Chengdu, Sichuan, People's Republic of China.,School of Nursing, West China Hospital of Sichuan University, Chengdu, Sichuan, People's Republic of China
| | - Xiao-Ling Hou
- Department of Orthopedics, West China Hospital of Sichuan University, Chengdu, Sichuan, People's Republic of China. .,School of Nursing, West China Hospital of Sichuan University, Chengdu, Sichuan, People's Republic of China.
| |
Collapse
|
15
|
Chen S, Zhao LH, Shan S, Li M, Sun YM, Zhou JL, Wu XN, Dong RH, Kong YY, Ou XJ, Ma H, You H, Jia JD. [Systematic evaluation of clinical trial protocols of new drugs as a cure of chronic hepatitis B]. Zhonghua Gan Zang Bing Za Zhi 2020; 28:954-958. [PMID: 32911904 DOI: 10.3760/cma.j.cn501113-20200609-00305] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To describe the current status of registration and design characteristics of clinical trials of new drugs for curing hepatitis B through domestic and foreign websites, so as to provide references for the follow-up clinical trials of new hepatitis B drugs. Methods: A search was conducted on the US Clinical Trials Database and the Chinese Clinical Trial Registry Center. The search date was from the establishment of the database to May 26, 2020, and the registration trials of new drugs for curing hepatitis B at home and abroad were included. Two researchers independently searched and screened the literature and extracted the data. Results: A total of 106 registered clinical trials of new drugs for curing hepatitis B were included (94 English registration websites and 12 Chinese registration websites), and the number of registrations had increased year by year. Among them, the proportion of therapeutic vaccines and core protein inhibitors were the highest, accounting for 27.4% (n = 29) and 22.6% (n = 24), respectively. The vast majority of clinical trials (n = 96, 90.6%) were in the early stages (Phase I and II). The subjects in phase I clinical trial were mainly healthy people and treated CHB patients, while the subjects in phase II clinical trial were mainly CHB patients who had achieved viral suppression after initial or post-treatment. The main evaluation indicators of Phase I clinical trials were the safety and tolerability of new drugs. The main evaluation indicators in about half of Phase II clinical trials were HBsAg negative conversion/quantitative decline. Overall, the number of clinical trials with the new design was small, accounting for 3.8% (4 / 106). There were relatively few trials of new drugs for curing hepatitis B on domestic registration websites, and the information provided was incomplete. Conclusion: The number of clinical trials of new hepatitis B drugs at home and abroad is increasing year by year, but most of them are in phase I and II, with few adopting new designs. In addition, the information integrity of the domestic website registration center needs to be improved.
Collapse
Affiliation(s)
- S Chen
- Liver Research Center, Beijing Friendship Hospital, Capital Medical University; Beijing Key Laboratory of Translational Medicine on Liver Cirrhosis; National Clinical Research Center for Digestive Diseases; Beijing 100050, China
| | - L H Zhao
- Liver Research Center, Beijing Friendship Hospital, Capital Medical University; Beijing Key Laboratory of Translational Medicine on Liver Cirrhosis; National Clinical Research Center for Digestive Diseases; Beijing 100050, China
| | - S Shan
- Liver Research Center, Beijing Friendship Hospital, Capital Medical University; Beijing Key Laboratory of Translational Medicine on Liver Cirrhosis; National Clinical Research Center for Digestive Diseases; Beijing 100050, China
| | - M Li
- Liver Research Center, Beijing Friendship Hospital, Capital Medical University; Beijing Key Laboratory of Translational Medicine on Liver Cirrhosis; National Clinical Research Center for Digestive Diseases; Beijing 100050, China
| | - Y M Sun
- Liver Research Center, Beijing Friendship Hospital, Capital Medical University; Beijing Key Laboratory of Translational Medicine on Liver Cirrhosis; National Clinical Research Center for Digestive Diseases; Beijing 100050, China
| | - J L Zhou
- Liver Research Center, Beijing Friendship Hospital, Capital Medical University; Beijing Key Laboratory of Translational Medicine on Liver Cirrhosis; National Clinical Research Center for Digestive Diseases; Beijing 100050, China
| | - X N Wu
- Liver Research Center, Beijing Friendship Hospital, Capital Medical University; Beijing Key Laboratory of Translational Medicine on Liver Cirrhosis; National Clinical Research Center for Digestive Diseases; Beijing 100050, China
| | - R H Dong
- Liver Research Center, Beijing Friendship Hospital, Capital Medical University; Beijing Key Laboratory of Translational Medicine on Liver Cirrhosis; National Clinical Research Center for Digestive Diseases; Beijing 100050, China
| | - Y Y Kong
- Department of Clinical Epidemiology and EBM, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China
| | - X J Ou
- Liver Research Center, Beijing Friendship Hospital, Capital Medical University; Beijing Key Laboratory of Translational Medicine on Liver Cirrhosis; National Clinical Research Center for Digestive Diseases; Beijing 100050, China
| | - H Ma
- Liver Research Center, Beijing Friendship Hospital, Capital Medical University; Beijing Key Laboratory of Translational Medicine on Liver Cirrhosis; National Clinical Research Center for Digestive Diseases; Beijing 100050, China
| | - H You
- Liver Research Center, Beijing Friendship Hospital, Capital Medical University; Beijing Key Laboratory of Translational Medicine on Liver Cirrhosis; National Clinical Research Center for Digestive Diseases; Beijing 100050, China
| | - J D Jia
- Liver Research Center, Beijing Friendship Hospital, Capital Medical University; Beijing Key Laboratory of Translational Medicine on Liver Cirrhosis; National Clinical Research Center for Digestive Diseases; Beijing 100050, China
| |
Collapse
|
16
|
Hao CC, Xu CY, Zhao XY, Luo JN, Wang G, Zhao LH, Ge X, Ge XF. Up-regulation of VANGL1 by IGF2BPs and miR-29b-3p attenuates the detrimental effect of irradiation on lung adenocarcinoma. J Exp Clin Cancer Res 2020; 39:256. [PMID: 33228740 PMCID: PMC7687693 DOI: 10.1186/s13046-020-01772-y] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Accepted: 11/09/2020] [Indexed: 12/11/2022]
Abstract
Accumulating evidence suggests that radiation treatment causes an adaptive response of lung adenocarcinoma (LUAD), which in turn attenuates the lethal effect of the irradiation. Previous microarray assays manifested the change of gene expression profile after irradiation. Bioinformatics analysis of the significantly changed genes revealed that VANGL1 may notably influence the effect of radiation on LUAD. To determine the role of VANGL1, this study knocked down or overexpressed VANGL1 in LUAD. M6A level of VANGL1 mRNA was determined by M6A-IP-qPCR assay. Irradiation caused the up-regulation of VANGL1 with the increase of VANGL1 m6A level. Depletion of m6A readers, IGF2BP2/3, undermined VANGL1 mRNA stability and expression upon irradiation. miR-29b-3p expression was decreased by irradiation, however VANGL1 is a target of miR-29b-3p which was identified by Luciferase report assay. The reduction of miR-29b-3p inhibited the degradation of VANGL1 mRNA. Knockdown of VANGL1 enhanced the detrimental effect of irradiation on LUAD, as indicated by more severe DNA damage and increased percentage of apoptotic cells. Immunocoprecipitation revealed the interaction between VANGL1 with BRAF. VANGL1 increased BRAF probably through suppressing the protein degradation, which led to the increase of BRAF downstream effectors, TP53BP1 and RAD51. These effectors are involved in DNA repair after the damage. In summary, irradiation caused the up-regulation of VANGL1, which, in turn, mitigated the detrimental effect of irradiation on LUAD by protecting DNA from damage probably through activating BRAF/TP53BP1/RAD51 cascades. Increased m6A level of VANGL1 and reduced miR-29b-3p took the responsibility of VANGL1 overexpression upon irradiation.
Collapse
Affiliation(s)
- Chun-Cheng Hao
- Department of Radiotherapy, Harbin Medical University Cancer Hospital, No. 150 Haping Road, Nangang District, 150040, Harbin City, Heilongjiang, China
| | - Cui-Yang Xu
- Department of Radiotherapy, Harbin Medical University Cancer Hospital, No. 150 Haping Road, Nangang District, 150040, Harbin City, Heilongjiang, China
| | - Xin-Yu Zhao
- Department of Radiotherapy, Harbin Medical University Cancer Hospital, No. 150 Haping Road, Nangang District, 150040, Harbin City, Heilongjiang, China
| | - Jia-Ning Luo
- Department of Radiotherapy, Harbin Medical University Cancer Hospital, No. 150 Haping Road, Nangang District, 150040, Harbin City, Heilongjiang, China
| | - Gang Wang
- Department of Radiotherapy, Harbin Medical University Cancer Hospital, No. 150 Haping Road, Nangang District, 150040, Harbin City, Heilongjiang, China
| | - Li-Hong Zhao
- Department of Radiotherapy, Harbin Medical University Cancer Hospital, No. 150 Haping Road, Nangang District, 150040, Harbin City, Heilongjiang, China
| | - Xiaofeng Ge
- Department of Radiotherapy, Harbin Medical University Cancer Hospital, No. 150 Haping Road, Nangang District, 150040, Harbin City, Heilongjiang, China
| | - Xiao-Feng Ge
- Department of Radiotherapy, Harbin Medical University Cancer Hospital, No. 150 Haping Road, Nangang District, 150040, Harbin City, Heilongjiang, China.
| |
Collapse
|
17
|
Zheng YW, Zhang JY, Zhou HB, Guo YP, Ma QG, Ji C, Zhao LH. Effects of dietary pyrroloquinoline quinone disodium supplementation on inflammatory responses, oxidative stress, and intestinal morphology in broiler chickens challenged with lipopolysaccharide. Poult Sci 2020; 99:5389-5398. [PMID: 33142455 PMCID: PMC7647834 DOI: 10.1016/j.psj.2020.08.007] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2020] [Revised: 08/03/2020] [Accepted: 08/15/2020] [Indexed: 01/03/2023] Open
Abstract
This study was conducted to investigate the effects of pyrroloquinoline quinone disodium (PQQ·Na2) on inflammatory responses, oxidative stress, and intestinal morphology of broiler chickens challenged with lipopolysaccharide (LPS). A 2 × 2 factorial arrangement in a complete randomized design experiment was used to study the effect of dietary PQQ·Na2 (0 or 1 mg/kg) on broiler chickens with or without a challenge with LPS. A total of two hundred eighty-eight 1-day-old Arbor Acre broiler chickens were randomly assigned to 4 treatments with 6 replicate cages of 12 birds per cage. All experimental broilers were injected intraperitoneally with 0.5 mg/kg body weight of either Escherichia coli LPS or sterile saline at 16, 18, and 20 d of age. Results showed that injecting LPS significantly increased the concentrations of interleukin-1beta (IL-1β) in serum of birds on day 20 and day 21. Meanwhile, LPS injection increased (P < 0.05) the relative mRNA expression of interleukin-6 (IL-6) in the duodenal mucosa of broilers on day 21. However, dietary supplementation with PQQ·Na2 decreased (P < 0.05) the concentration of IL-6 in serum of birds on day 20 and the levels of IL-1β, IL-6, and interleukin-10 (IL-10) in serum of broiler chickens on day 21. Besides, supplementation of PQQ·Na2 within diet decreased (P < 0.05) the mRNA expressions of IL-1β and IL-10 in the duodenal mucosa of birds on day 20. Relative to saline injection, the activity of glutathione peroxidase (GSH-Px) in serum and the activities of total superoxide dismutase (T-SOD) and catalase (CAT) in liver were found to be lower (P < 0.05) in broilers after LPS challenge on day 21. However, birds fed with PQQ·Na2 showed higher (P < 0.05) GSH-Px activity in serum and higher (P < 0.05) T-SOD activities in liver on day 21 and day 42. Pyrroloquinoline quinone disodium also significantly attenuated the LPS-induced decreases in villus height to crypt depth ratio in the duodenum of broilers. In conclusion, dietary PQQ·Na2 supplementation significantly exerted protective effects on inflammation damage and oxidant stress of broilers under LPS challenge by regulating the expression of inflammatory cytokines (IL-1β, IL-6, and IL-10) and activities of antioxidant enzymes (GSH-Px, T-SOD, and CAT). Moreover, dietary PQQ·Na2 supplementation significantly ameliorated the LPS-impaired intestinal morphology in broilers. Therefore, it has been considered that PQQ·Na2 can be used as a potential feed additive in broiler production.
Collapse
Affiliation(s)
- Y W Zheng
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100193, PR China
| | - J Y Zhang
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100193, PR China
| | - H B Zhou
- Dalian Chengsan Husbandry Co., Ltd., Dalian 116308, PR China
| | - Y P Guo
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100193, PR China
| | - Q G Ma
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100193, PR China
| | - C Ji
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100193, PR China
| | - L H Zhao
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100193, PR China.
| |
Collapse
|
18
|
Liu YJ, Zhao LH, Mosenthin R, Zhang JY, Ji C, Ma QG. Protective Effect of Vitamin E on laying performance, antioxidant capacity, and immunity in laying hens challenged with Salmonella Enteritidis. Poult Sci 2020; 98:5847-5854. [PMID: 31329983 DOI: 10.3382/ps/pez227] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2018] [Accepted: 03/26/2019] [Indexed: 12/12/2022] Open
Abstract
Vitamin E (VE) has proven to function as potent lipid-soluble antioxidant, a signaling molecule, and a regulator of the immune system. The objective of the study was to assess the protective effect of VE on laying performance, antioxidant capacity, and immunity in laying hens exposed to Salmonella Enteritidis (SE). A total of 80 32-week-old salmonella-free double negative Hy-Line brown laying hens were randomly assigned to 4 treatments with 20 replicates each (1 bird per replicate) according to a 2 × 2 factorial design with 2 VE supplementation levels [0 IU/kg (VE0) vs. 30 IU/kg (VE30)], and 2 challenge treatments [SE vs. physiological saline solution (PS)]. During the last 3 D of week 43 of age, birds were orally challenged with 1.0 mL suspension of 109 cfu/mL S. Enteritidis daily, whereas the birds of negative treatments (VE0) received the same volume of PS. The egg mass of VE0 treatment decreased (P < 0.05) in contrast to VE treatment after challenge. The serum concentrations of interleukins (IL-1β and IL-6) and malondialdehyde (MDA) levels of SE treatments increased (P < 0.05) at week 44 and week 46, respectively. In both VE30 treatments, the decrease (P < 0.05) in birds' mortality was associated with higher IgA, IgG, IgM concentrations at week 44, and higher IgA, IgM concentrations at week 46. There is an interaction (P < 0.05) between SE challenge and VE levels with regard to feed conversion, daily egg mass, and serum MDA, IgA, and IgM levels. It can be concluded that supplemental VE (30 IU/kg) in diets for laying hens may alleviate oxidative and immune stress due to SE challenge.
Collapse
Affiliation(s)
- Y J Liu
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
| | - L H Zhao
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
| | - R Mosenthin
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China.,Institute of Animal Science, University of Hohenheim, 70593 Stuttgart, Germany
| | - J Y Zhang
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
| | - C Ji
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
| | - Q G Ma
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
| |
Collapse
|
19
|
Zheng YW, Zhao LH, Wei YM, Ma QG, Ji C, Zhang JY. Effects of main cereal type and feed form on production performance, egg quality and egg sanitary indices of laying hens. Br Poult Sci 2020; 61:164-168. [PMID: 31899950 DOI: 10.1080/00071668.2019.1704685] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
1. The experiment was conducted to evaluate the effects of cereal types (maize or wheat) and feed forms (pelleted or mash feed) on production performance, egg quality and egg sanitary indices in laying hens.2. Three hundred and sixty hens (Jinghong No. 1) at 18 weeks of age were randomly assigned to four treatments with six replicates of 15 hens per replicate according to a 2 × 2 factorial design with two cereal types (maize or wheat) and two feed forms (pelleted or mash feed).3. Compared with the wheat-based diet, the maize-based diet improved (P < 0.05) average egg weight of laying hens. Yolk colour of hens fed with the maize-based diet was higher (P < 0.05) in comparison to those fed the wheat-based diet, while Haugh units were lower (P < 0.05) for the maize-based treatment. Egg mass and average daily feed intake of hens fed the pelleted diet were higher (P < 0.05) than of those fed the mash diet. However, the mash diet improved (P < 0.05) yolk colour compared with the pelleted diet. The percentage of dirty eggs for the wheat-based diet was higher (P < 0.05) than for the maize-based diet. The percentage of dirty eggs was higher (P < 0.05) in birds fed the pelleted diet compared with those fed the mash diet. There were interactions (P < 0.05) between cereal type and feed form, with regard to average egg weight and shell thickness.4. In conclusion, dietary cereal type affected average egg weight, yolk colour and Haugh units in eggs, while feed form influenced egg mass, average daily feed intake and yolk colour.
Collapse
Affiliation(s)
- Y W Zheng
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, P. R. China
| | - L H Zhao
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, P. R. China
| | - Y M Wei
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, P. R. China
| | - Q G Ma
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, P. R. China
| | - C Ji
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, P. R. China
| | - J Y Zhang
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, P. R. China
| |
Collapse
|
20
|
Yi D, Zhao XM, Guo X, Zhao LH, Zhang H, Han Y, Roshan S, Luo ZJ. [Delimitation of urban development boundary based on ecological sensitivity evaluation and CA-Markov simulation in plain city:A case of Nanchang, Jiangxi, China]. Ying Yong Sheng Tai Xue Bao 2020; 31:208-218. [PMID: 31957398 DOI: 10.13287/j.1001-9332.202001.013] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
The rational delimitation of urban development boundary plays an important role in guiding the orderly growth of urban space and ensure proper environment health of urban space. In this study, we evaluated the ecological sensitivity of Nanchang City from four aspects (soil erosion, habitat, geological disaster and water resource) and simulated urban expansion in 2020 based on CA-Markov and land use data in 2000, 2010 and 2015. Spatial decision-making analysis of the two aspects was carried out in combination to the future development of the study area. We proposed a new method of delimitating urban development boundary integrating environmental protection and urban development through the dynamic coordination of both aspects. The results showed that ecological sensitivity of Nanchang City was moderate. The scale of urban construction land based on CA Markov simulation was 1239.67 km2, which slightly exceeded the planned construction land target (1201.65 km2). When the dynamic adjustment was done by superimposing the ecological sensitivity evaluation results with the expansion simulation results, the adjusted construction land scale of Nanchang City was 1193.15 km2, which met the planned requirement. Consideration of the coordination of protection and development could not only protect the ecological space, but also help to guide the orderly growth of urban space and ensure the healthy development of urban space, and thus was an important way to achieve a win-win situation between rational urban development and ecological protection.
Collapse
Affiliation(s)
- Dan Yi
- College of Land Resources and Environment, Jiangxi Agricultural University/Jiangxi Province Key Laboratory of Poyang Lake Basin Agricultural Resources and Ecology, Nanchang 330045, China
| | - Xiao-Min Zhao
- College of Land Resources and Environment, Jiangxi Agricultural University/Jiangxi Province Key Laboratory of Poyang Lake Basin Agricultural Resources and Ecology, Nanchang 330045, China
| | - Xi Guo
- College of Land Resources and Environment, Jiangxi Agricultural University/Jiangxi Province Key Laboratory of Poyang Lake Basin Agricultural Resources and Ecology, Nanchang 330045, China
| | - Li-Hong Zhao
- College of Land Resources and Environment, Jiangxi Agricultural University/Jiangxi Province Key Laboratory of Poyang Lake Basin Agricultural Resources and Ecology, Nanchang 330045, China
| | - Han Zhang
- College of Land Resources and Environment, Jiangxi Agricultural University/Jiangxi Province Key Laboratory of Poyang Lake Basin Agricultural Resources and Ecology, Nanchang 330045, China
| | - Yi Han
- College of Land Resources and Environment, Jiangxi Agricultural University/Jiangxi Province Key Laboratory of Poyang Lake Basin Agricultural Resources and Ecology, Nanchang 330045, China
| | - Subedi Roshan
- College of Land Resources and Environment, Jiangxi Agricultural University/Jiangxi Province Key Laboratory of Poyang Lake Basin Agricultural Resources and Ecology, Nanchang 330045, China
| | - Zhi-Jun Luo
- College of Land Resources and Environment, Jiangxi Agricultural University/Jiangxi Province Key Laboratory of Poyang Lake Basin Agricultural Resources and Ecology, Nanchang 330045, China
| |
Collapse
|
21
|
Ge HJ, Zhang WW, Wang YJ, Zhao LH, Hu ZL, Piao YS. [Expression of autophagy-related proteins in cortical nodules of tuberous sclerosis complex]. Zhonghua Bing Li Xue Za Zhi 2019; 48:856-860. [PMID: 31775434 DOI: 10.3760/cma.j.issn.0529-5807.2019.11.005] [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 expression of LC3B, p-AMPKα and p27 in cortical tuberous sclerosis complex (TSC). Methods: Nineteen specimens of surgically resected TSC cortical tubers were collected at Xuanwu Hospital, Capital Medical University, from 2014 to 2017. The expression of the three proteins in the lesions and the adjacent relatively normal regions was detected by immunohistochemical staining (EnVision two-step method). Results: LC3B was mainly expressed in the dysmorphic neuron and giant cell in TSC cortical tubers and in the adjacent relatively normal neurons, and the expression was diffuse or perinuclear cytoplasmic. There was no significant difference in the average optical density between abnormal cells and neurons adjacent to the lesions (0.343±0.195 vs. 0.419±0.088, P>0.05). p-AMPKα was localized in the cytoplasm of dysmorphic neurons and giant cell in TSC cortical tubers. The average optical density of abnormal cells in the lesions was significantly higher than that of neurons adjacent to the lesions (0.306±0.123 vs. 0.233±0.654, P<0.05). P27 showed nuclear positivity, mainly expressed in the neurons and glial cells close to TSC cortical tubers, while the positive rate in the abnormal cells in TSC cortical tubers was low (15/19 vs. 7/19, P<0.05). Conclusion: There is no significant decrease in the level of autophagy in dysmorphic neurons and giant cells in TSC cortical tubers, which may be related to the compensatory mechanism of AMPK signaling pathway, but without activation of downstream p27.
Collapse
Affiliation(s)
- H J Ge
- Department of Pathology, Xuanwu Hospital, Capital Medical University, Beijing 100053, China
| | | | | | | | | | | |
Collapse
|
22
|
Hamid H, Zhao LH, Ma GY, Li WX, Shi HQ, Zhang JY, Ji C, Ma QG. Evaluation of the overall impact of antibiotics growth promoters on broiler health and productivity during the medication and withdrawal period. Poult Sci 2019; 98:3685-3694. [DOI: 10.3382/ps/pey598] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2018] [Accepted: 12/21/2018] [Indexed: 11/20/2022] Open
|
23
|
Hamid H, Zhang JY, Li WX, Liu C, Li ML, Zhao LH, Ji C, Ma QG. Interactions between the cecal microbiota and non-alcoholic steatohepatitis using laying hens as the model. Poult Sci 2019; 98:2509-2521. [PMID: 30690636 DOI: 10.3382/ps/pey596] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [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: 05/29/2018] [Accepted: 12/21/2018] [Indexed: 12/21/2022] Open
Abstract
Chronic liver disease has caused increasing numbers of deaths worldwide. Fatty liver hemorrhagic syndrome, one of the chronic liver diseases in laying hens, has great similarity to non-alcoholic fatty liver disease (NAFLD) in humans. It is characterized by the pathological accumulation of liver fat. Non-invasive techniques are needed for early identification of fibrosis. As primary de novo lipogenesis in the liver of chicken is similar to that of humans, mature chicken is an ideal animal model for the understanding of NAFLD. This study was aimed to evaluate the relationships between gut microbiota and natural chronic liver disease (i.e., non-alcoholic steatohepatitis [NASH] and fibrosis stages) in a well-characterized laying hen population. One hundred 20-wk-old Hy-Line Brown laying hens were used and fed with basal diets until 52 wk of age. At the end of the experiment, birds were killed for sampling blood, liver, and cecal contents, and then classified by liver histology measurement into different groups. We investigated microbial community structure of cecum using 16S rRNA gene sequencing. Subjects in stage 0 fibrosis without NASH were classified as low NAFLD (Group A), subjects in stage 1-2 fibrosis with mild to moderate NASH were defined as low NASH (Group B), and subjects in stage 3 fibrosis were defined as severe NASH (Group C). The abundance of Firmicutes was reduced in Groups B and C (P < 0.001), whereas opposite results were observed for the abundance of Bacteroidetes. Additionally, the families Bacteroidaceae, Ruminococcaceae Lachnospiraceae, and lactobacillae were significantly different between groups of differing fibrosis stages (P < 0.001), driven entirely by alterations of Bacteroides and lactobacillus and lachnospiraceae genera (P < 0.001), were observed. Results indicated that cecal dysbiosis was linked with the severity of fibrosis and NASH; importantly, increased levels of serum AST, alkaline phosphatase, and uric acid were accompanied with liver fibrosis and NASH severity. Collectively, these data highlight the role of gut-liver axis and associations between the gut microbiota and fibrosis and NASH severity.
Collapse
Affiliation(s)
- H Hamid
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100193, P. R. China
| | - J Y Zhang
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100193, P. R. China.,Key Laboratory of Biomass Energy and Materials of Jiangsu Province, Nanjing 210042, China
| | - W X Li
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100193, P. R. China
| | - C Liu
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100193, P. R. China
| | - M L Li
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100193, P. R. China
| | - L H Zhao
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100193, P. R. China
| | - C Ji
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100193, P. R. China
| | - Q G Ma
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100193, P. R. China
| |
Collapse
|
24
|
Liu ML, Huang M, Tian LY, Zhao LH, Ding B, Kong DB, Yang QH, Shao JJ. Correction to Two-Dimensional Nanochannel Arrays Based on Flexible Montmorillonite Membranes. ACS Appl Mater Interfaces 2019; 11:6665. [PMID: 30698950 DOI: 10.1021/acsami.9b00302] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
|
25
|
Liu ML, Huang M, Tian LY, Zhao LH, Ding B, Kong DB, Yang QH, Shao JJ. Two-Dimensional Nanochannel Arrays Based on Flexible Montmorillonite Membranes. ACS Appl Mater Interfaces 2018; 10:44915-44923. [PMID: 30509069 DOI: 10.1021/acsami.8b17719] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Two-dimensional (2D) nanochannel arrays are constructed by bottom-up reassembly of montmorillonite monolayers that are obtained by liquid-phase exfoliation of its layered crystals, and the as-constructed interstitial space between these monolayers is uniform and provides ions with nanoscale transport channels. Surface-charge-controlled ion transport behavior is observed through these nanochannels as the electrolyte concentration reduces to 10-4 M at room temperature. Furthermore, the nanochannel structure remains even after 400 °C heat treatment, and nanofluidic devices based on the annealed nanochannel arrays still exhibit surface-charge-governed ion transport at low electrolyte concentrations. In addition, a drift-diffusion experiment is conducted to investigate the mobility ratio of cations/anions through the nanochannels with asymmetric bulk electrolyte concentrations, and the results show that the mobility of cations is about eight to nine times that of anions, which is consistent with the fact that the montmorillonite monolayers are negatively charged and the nanochannels are permselective. Last, ionic current rectification is observed in the nanofluidic system of asymmetric geometric shape, and rectification factors of ∼2.6 and ∼3.5 can be obtained in KCl and HCl electrolytes, respectively, at a bias between -1 and +1 V because of the asymmetric electrostatic potential through the nanochannels.
Collapse
Affiliation(s)
- Mei-Li Liu
- School of Materials and Metallurgy , Guizhou University , Guiyang 550025 , China
| | - Meng Huang
- School of Materials and Metallurgy , Guizhou University , Guiyang 550025 , China
| | - Lian-Yu Tian
- School of Materials and Metallurgy , Guizhou University , Guiyang 550025 , China
| | - Li-Hong Zhao
- School of Materials and Metallurgy , Guizhou University , Guiyang 550025 , China
| | - Bin Ding
- School of Materials and Metallurgy , Guizhou University , Guiyang 550025 , China
| | - De-Bin Kong
- National Center for Nanoscience and Technology , No. 11 Beiyitiao, Zhongguancun , Beijing 100190 , China
| | - Quan-Hong Yang
- School of Chemical Engineering and Technology , Tianjin University , Tianjin 300072 , China
| | - Jiao-Jing Shao
- School of Materials and Metallurgy , Guizhou University , Guiyang 550025 , China
| |
Collapse
|
26
|
Hamid H, Shi HQ, Ma GY, Fan Y, Li WX, Zhao LH, Zhang JY, Ji C, Ma QG. Influence of acidified drinking water on growth performance and gastrointestinal function of broilers. Poult Sci 2018; 97:3601-3609. [PMID: 29860532 DOI: 10.3382/ps/pey212] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2018] [Accepted: 04/28/2018] [Indexed: 11/20/2022] Open
Abstract
The ban on the use of antibiotic feed additives as growth promoters compelled the researchers for exploring the future utility of other alternatives. This experiment was designed to evaluate the effect of acidified drinking water on growth performance, gastrointestinal pH, digestive enzymes, intestinal histomorphology, and cecum microbial counting of the broiler chicken. A total of 540 one-day-old male broilers (Arbor Acre) were randomly assigned to 5 treatments, with 6 replicates of 18 chicks per replicate. Broilers received diets and water as follows: NC (negative control, basal diet, normal water), PC (positive control, basal diet + 8 ppm colistin sulfate + 8 ppm enduracidin, normal water), A1 (basal diet, continuous supply of acidified water during whole experiment period), A2 (basal diet, intermittent acidification of water during 0 to 14 d, 22 to 28 d, and 36 to 42 d), and A3 [basal diet, intermittent acidification of water (24 h/d from 0 to 14 d and from 10:00 am to 4:00 pm on d 15 to 42)]. During the entire period, the acidified groups (A1, A2, and A3) and PC group showed improve on weight gain, average daily gain and feed conversion ratio compared to NC group (P < 0.05). The pH in crop, proventriculus and ileum at 43 d declined by 0.04, 1.03, 1.23; 0.55, 0.69, 0.70; and 0.63, 0.74, 1.21 in A1, A2, and A3 group, respectively. There was a significant decline of lipase activity in the PC and acidified groups compared to NC group. The A2 group had higher villus height in jejunum than NC group. The PC and acidified groups reduced (P < 0.05) the total aerobic bacteria count of cecum when contrasted to NC group. Therefore, we conclude that acidified drinking water can improve growth performance, compensate for gastric acidity, and control pathogenic bacteria in broilers and may be considered as a potential alternative to improve production parameters. Discontinuous supply of acidified water had the same or even better influence on broilers compared to continuous supply.
Collapse
Affiliation(s)
- H Hamid
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - H Q Shi
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - G Y Ma
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Y Fan
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - W X Li
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - L H Zhao
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - J Y Zhang
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - C Ji
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Q G Ma
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, China
| |
Collapse
|
27
|
Wang DD, Piao YS, Blumcke I, Sun YN, Gao W, Zhao LH, Wang WM, Lu DH. Papillary Glioneuronal Tumor with an Excessive Angiomatous Component in an Elderly Man. Chin Med J (Engl) 2018; 131:243-244. [PMID: 29336376 PMCID: PMC5776858 DOI: 10.4103/0366-6999.222333] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Affiliation(s)
- Dan-Dan Wang
- Department of Pathology, Xuanwu Hospital, Capital Medical University, Beijing 100053, China
| | - Yue-Shan Piao
- Department of Pathology, Xuanwu Hospital, Capital Medical University, Beijing 100053, China
| | - Ingmar Blumcke
- Neuropathological Institute, University Hospital Erlangen, Erlangen, Germany
| | - Yan-Ni Sun
- Department of Pathology, Xuanwu Hospital, Capital Medical University, Beijing 100053, China
| | - Wei Gao
- Department of Pathology, Xuanwu Hospital, Capital Medical University, Beijing 100053, China
| | - Li-Hong Zhao
- Department of Pathology, Xuanwu Hospital, Capital Medical University, Beijing 100053, China
| | - Wei-Min Wang
- Department of Pathology, Xuanwu Hospital, Capital Medical University, Beijing 100053, China
| | - De-Hong Lu
- Department of Pathology, Xuanwu Hospital, Capital Medical University, Beijing 100053, China
| |
Collapse
|
28
|
Wang W, Lian F, Fu YJ, Lu DH, Zhao LH, Wei LF, Piao YS. [Neuropathologic study of massive subcortical heterotopia]. Zhonghua Bing Li Xue Za Zhi 2018; 47:671-675. [PMID: 30220119 DOI: 10.3760/cma.j.issn.0529-5807.2018.09.004] [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 clinicpathologic features and probable mechanisms of massive subcortical heterotopia. Methods: Clinical data, histologic features and neuropathologic data were analyzed in five cases of massive subcortical heterotopia collected from Xuanwu Hospital, Capital Medical University from January 2014 to October 2017. Results: All five patients (three males and two females) had a history of refractory epilepsy with a mean period of 15.4 years (range 7 to 21 years). The median age at surgery was 28.6 years(range 20 to 39 years). Magnetic resonance imaging showed that the lesions were located in the temporal lobe (two cases), parietal lobe (one case), both temporal and occipital lobes (one case) and both temporal and parietal lobes (one case). Pathologic examination disclosed that massive gray matter in subcortical and deep white matter with various shape and size. Moreover, one case also showed subpial and periventricular heterotopias and polymicrogyria. Polymicrogyria or hippocampal sclerosis were seen in the remaining three cases. None of the five patients experienced seizure attacks during the follow-up period. Conclusions: Heterotopia is malformations due to abnormal neuronal migration. Massive subcortical heterotopia due to widespread abnormal neuronal migration is relatively rare. The mechanism of heterotopia together with polymicrogyria needs further discussion.
Collapse
Affiliation(s)
- W Wang
- Department of Pathology, Xuanwu Hospital, Capital Medical University, Beijing 100053, China
| | | | | | | | | | | | | |
Collapse
|
29
|
Zhang JG, Liu KL, Zhao LH, Qian WQ, Peng WL, Liu Y, Xia CC, Li ZL. [Comparison of MR Perfusion Weighted Imaging and CT Perfusion Imaging in Assessing Hemodynamics of Patients with Moyamoya Disease]. Sichuan Da Xue Xue Bao Yi Xue Ban 2018; 49:749-753. [PMID: 30378338] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
OBJECTIVE To determine consistencies between MR perfusion weighted imaging (PW-MRI) and CT perfusion imaging (CTP) in assessing hemodynamics of patients with moyamoya disease (MMD). METHODS Images of PWI and CTP scan [including the map of cerebral blood flow (CBF), cerebral blood volume (CBV), time to peak (TTP), and mean transmit time (MTT)] of 24 MMD patients diagnosed by digital subtraction angiography(DSA) or time of flight-MR angiography (TOF-MRA) were obtained in the week before vascular reconstruction operations. Relative perfusion parameters (rCBF, rCBV, rMTT, rTTP) at the operative side within the middle cerebral artery territory and cerebellar hemisphere were compared with those of 17 patients without hypoperfusion and cerebrovascular disease using independent sample t test. Paired t test and Pearson correlation analyses were performed between the results of PWI-MRI and CTP. RESULTS Different parameters were found in the MMD patients compared with the controls (P<0.05). The parameter results of PWI-MRI differed from those of CTP, but they were strongly correlated. CONCLUSION Both PWI-MRI and CTP can detect the area and degree of hypoperfusion of MMD patients.
Collapse
Affiliation(s)
- Jin-Ge Zhang
- Department of Radiology, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Ke-Ling Liu
- Department of Radiology, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Li-Hong Zhao
- Department of Radiology, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Wei-Qiang Qian
- Department of Neurosurgery, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Wan-Lin Peng
- Department of Radiology, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Yi Liu
- Department of Neurosurgery, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Chun-Chao Xia
- Department of Radiology, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Zhen-Lin Li
- Department of Radiology, West China Hospital, Sichuan University, Chengdu 610041, China
| |
Collapse
|
30
|
Han XJ, Qin P, Li WX, Ma QG, Ji C, Zhang JY, Zhao LH. Effect of sodium selenite and selenium yeast on performance, egg quality, antioxidant capacity, and selenium deposition of laying hens. Poult Sci 2018; 96:3973-3980. [PMID: 29050423 DOI: 10.3382/ps/pex216] [Citation(s) in RCA: 55] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2016] [Accepted: 08/08/2017] [Indexed: 11/20/2022] Open
Abstract
This study compared the effects of sodium selenite and selenium yeast and their combination on laying performance, egg quality, antioxidant capacity, and selenium (Se) contents in tissues and eggs. Two-hundred-eighty-eight Jing Hong layers that were similar in laying rate (87.5 ± 0.38%) and body weight (1.70 ± 0.02 kg) were randomly distributed into 4 treatments for 11 wk (from 203 d old to 279 d old) with 9 replicates of 8 hens per replicate. The diets (corn-soybean meal diet) were supplemented with 0 [blank control (BC)], 0.3 mg/kg Se from sodium selenite (SS), 0.15 mg/kg Se from sodium selenite and 0.15 mg/kg Se from Se yeast (SS+SY), or 0.3 mg/kg Se from Se yeast (SY). Results showed that the laying rate of the SS+SY group increased significantly (P < 0.05) compared to the BC and SY groups. There were no differences (P > 0.05) in egg quality between the Se-supplemented diets and the BC diet. The serum glutathione peroxidase (GSH-Px) activity was increased (P < 0.01) in hens fed Se-supplemented diets compared to the BC diet. The liver superoxide dismutase (SOD) activity of the SY group was increased significantly (P < 0.05) compared to the BC group. Significant increase (P < 0.01) due to SY supplementation was noted in the serum vitamin E content compared to BC and SS. Layers fed Se-supplemented diets had higher (P < 0.01) contents of Se in the serum, liver, and kidney compared to the BC diet. Compared to BC, Se content in eggs was significantly increased (P < 0.05) by feeding supplementary Se. In conclusion, the effects of SS and Se yeast were approximately equal in promoting antioxidant capacity of laying hens, while Se yeast is easier to deposit into eggs and tissues. The diet with added equal amounts of the 2 sources of Se was more cost effective and affordable than a comparable amount of Se yeast to obtain the promising production performance and nearly similar Se deposition.
Collapse
Affiliation(s)
| | | | - W X Li
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100193, P. R. China
| | | | - C Ji
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100193, P. R. China
| | - J Y Zhang
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100193, P. R. China
| | - L H Zhao
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100193, P. R. China
| |
Collapse
|
31
|
Li WX, Chen YQ, Zhao LH, Ma QG, Zhang JY, Ji C. No copper supplementation in a corn-soybean basal diet has no adverse effects on late-phase laying hens under normal and cyclic high temperatures. Poult Sci 2018; 97:1352-1360. [PMID: 29452393 DOI: 10.3382/ps/pex447] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2017] [Accepted: 12/29/2017] [Indexed: 11/20/2022] Open
Abstract
Over supplementation of copper (Cu) in animal diets may cause serious pollution in soil, water and harvested crops. To minimize the potential pollution, the effects of corn-soybean basal diet with or without supplementation of 8 mg Cu/kg on laying performance, plasma biochemical metabolic indices, and antioxidant status in laying hens were evaluated under normal and cyclic high temperatures. A total of 240 Hy-Line Brown laying hens were randomly allotted to 4 treatments with 6 replicates of 10 hens per replicate according to factorial design involved in 2 temperatures [normal temperature (NT) vs. cyclic high temperature (CHT)] and 2 dietary Cu addition amount [Cu0 (0 mg/kg) vs. Cu8 (8 mg/kg in the form of CuSO4·5H2O)]. The experimental period included 1-week adaptation, 2-week heat stress and 2-week convalescence. The temperatures of NT groups in the same period or any groups during other periods were kept at 26 ± 2°C except that of CHT groups were 26 ± 2°C∼33 ± 2°C cyclically during heat stress period. CHT groups increased (P < 0.05) the rectal temperature and plasma glucose content under heat stress, but decreased (P < 0.01) the egg yield at the second week of heat stress and the first week of convalescence, and the plasma triglyceride, uric acid, and triiodothyronine levels under heat stress. Cu8 groups increased (P < 0.05) egg weight at the first week of convalescence, and plasma thyroxin level during the whole convalescence. Interactions between temperature and Cu content existed (P < 0.05) in the laying rate at the first week of convalescence, and the plasma lactic dehydrogenase level under heat stress. Conclusively, the CHT impaired laying performance. The Cu content (10.3 mg/kg) in corn-soybean basal diet might be sufficient for meeting the maintenance and production requirements of late-phase laying hens, and no Cu supplementation had no adverse effects on egg production and antioxidant indices under cyclic high (26 ± 2°C∼33 ± 2°C) or normal (26 ± 2°C) temperatures.
Collapse
Affiliation(s)
- W X Li
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100193, P. R. China
| | - Y Q Chen
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100193, P. R. China
| | - L H Zhao
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100193, P. R. China
| | - Q G Ma
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100193, P. R. China
| | - J Y Zhang
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100193, P. R. China
| | - C Ji
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100193, P. R. China
| |
Collapse
|
32
|
Li HG, Zhao LH, Zhang ZH, Liu JZ, Ren K, Li SY, Su ZJ. The Impact of Cysteine-Rich Intestinal Protein 1 (CRIP1) on Thyroid Carcinoma. Cell Physiol Biochem 2017; 43:2037-2046. [PMID: 29059670 DOI: 10.1159/000484184] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2017] [Accepted: 08/18/2017] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND/AIMS CRIP1 (cysteine-rich intestinal protein 1) has been found in several tumor types; however, its prognostic impact and role in cellular processes, particularly in thyroid carcinoma, are still unclear. METHODS To elucidate the prognostic impact of CRIP1, we analyzed tissues from 58 primary invasive thyroid carcinomas using immunohistochemistry. Western blotting was performed to investigate CRIP1 protein expression in the thyrocyte cell line Nthy-ori 3-1 and four different thyroid carcinoma cell lines, K1, TPC-1, TT, and SW579. Endogenous expression of CRIP1 was suppressed using a siRNA (si-CRIP1). The 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide assay was used to investigate cell viability. Flow cytometric analysis was used to detect cell cycle progression and cell apoptosis. The effects of silencing CRIP1 on cell migration and invasion were detected using the transwell assay. RESULTS The immunohistochemistry results showed that CRIP1 was overexpressed in thyroid carcinoma. CRIP1 expression was associated with tumor size, TNM stage, and lymphatic metastasis, but not with age, gender, and tumor location. In addition, the expression of CRIP1 in K1, TPC-1, TT, and SW529 cells was higher than that in the Nthy-ori 3-1 cells. The highest expression was observed in the SW579 and TT cells. Furthermore, silencing CRIP1 inhibited the proliferation, migration, and invasion of thyroid carcinoma cell lines SW579 and TT. We also found that silencing CRIP1 induced G1 arrest and apoptosis of thyroid carcinoma cell lines SW579 and TT. CONCLUSION In conclusion, CRIP1 acts as an oncogene in the cell proliferation, migration, and invasion processes of thyroid carcinoma. CRIP1 may serve well as an independent prognostic marker with significant predictive power for use in thyroid carcinoma therapy.
Collapse
Affiliation(s)
- Hong-Guang Li
- Department of Thyroid Surgery, Henan Provincial People's Hospital, Zhengzhou, China
| | - Li-Hong Zhao
- Central Sterile Supply Department, Henan Provincial People's Hospital, Zhengzhou, China
| | - Zhen-Hua Zhang
- Department of Thyroid Surgery, Henan Provincial People's Hospital, Zhengzhou, China
| | - Jun-Zhao Liu
- Department of Thyroid Surgery, Henan Provincial People's Hospital, Zhengzhou, China
| | - Ke Ren
- Department of General Surgery, Henan Provincial People's Hospital, Zhengzhou, China
| | - Shao-Ying Li
- Department of General Surgery, Henan Provincial People's Hospital, Zhengzhou, China
| | - Zi-Jie Su
- Department of Thyroid Surgery, Henan Provincial People's Hospital, Zhengzhou, China
| |
Collapse
|
33
|
Cheng XX, Zhao LH, Klosterman SJ, Feng HJ, Feng ZL, Wei F, Shi YQ, Li ZF, Zhu HQ. The endochitinase VDECH from Verticillium dahliae inhibits spore germination and activates plant defense responses. Plant Sci 2017; 259:12-23. [PMID: 28483050 DOI: 10.1016/j.plantsci.2017.03.002] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [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: 12/29/2016] [Revised: 03/01/2017] [Accepted: 03/06/2017] [Indexed: 05/06/2023]
Abstract
Chitinases function in the digestion of chitin molecules, which are present principally in insects and fungi. In plants, chitinase genes play important roles in defense, and their expression can be triggered in response to both biotic and abiotic stresses. In this study, we cloned and characterized an endochitinase (VDECH) from Verticillium dahliae, strain Vd080. The VDECH coding region consists of 1845bp with two exons and one 54bp intron, encoding a 615 amino acid protein with the predicted molecular weight (MW) of 63.9kDa. The VDECH cDNA without signal peptide-encoding region was introduced into pCold-TF vector and the recombinant protein HIS-VDECH with a predicted MW of ∼114kDa was expressed. HIS-VDECH showed high tolerance to extreme temperature, exhibiting efficient chitinolytic activity at 50°C. In addition, VDECH triggered typical plant defense responses, including a hypersensitive response, oxidative burst, and elicited increased expression of defense-related genes in both Arabidopsis and cotton. VDECH-treatment of the conidial spores of V. dahliae and Fusarium oxysporum resulted in marked reductions in the germination of these spores in both fungi. After 36h of incubation with VDECH, the inhibition rate of germination was recorded at 99.57% for V. dahliae, and 96.89% for F. oxysporum. These results provide evidence that VDECH is recognized by the plant to elicit defense responses, and also that VDECH is an effective inhibitor of conidia germination, both of which may be exploited for disease control.
Collapse
Affiliation(s)
- Xiao-Xiao Cheng
- State Key Laboratory of Cotton Biology, Institute of Cotton Research of Chinese Academy of Agricultural Sciences, Anyang, Henan, 455000, China
| | - Li-Hong Zhao
- State Key Laboratory of Cotton Biology, Institute of Cotton Research of Chinese Academy of Agricultural Sciences, Anyang, Henan, 455000, China
| | | | - Hong-Jie Feng
- State Key Laboratory of Cotton Biology, Institute of Cotton Research of Chinese Academy of Agricultural Sciences, Anyang, Henan, 455000, China
| | - Zi-Li Feng
- State Key Laboratory of Cotton Biology, Institute of Cotton Research of Chinese Academy of Agricultural Sciences, Anyang, Henan, 455000, China
| | - Feng Wei
- State Key Laboratory of Cotton Biology, Institute of Cotton Research of Chinese Academy of Agricultural Sciences, Anyang, Henan, 455000, China
| | - Yong-Qiang Shi
- State Key Laboratory of Cotton Biology, Institute of Cotton Research of Chinese Academy of Agricultural Sciences, Anyang, Henan, 455000, China
| | - Zhi-Fang Li
- State Key Laboratory of Cotton Biology, Institute of Cotton Research of Chinese Academy of Agricultural Sciences, Anyang, Henan, 455000, China.
| | - He-Qin Zhu
- State Key Laboratory of Cotton Biology, Institute of Cotton Research of Chinese Academy of Agricultural Sciences, Anyang, Henan, 455000, China.
| |
Collapse
|
34
|
Geng D, Ou R, Miao X, Zhao L, Wei Q, Chen X, Liang Y, Shang H, Yang R. Patients’ self-perceived burden, caregivers’ burden and quality of life for amyotrophic lateral sclerosis patients: a cross-sectional study. J Clin Nurs 2017; 26:3188-3199. [PMID: 27874996 DOI: 10.1111/jocn.13667] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/12/2016] [Indexed: 02/05/2023]
Affiliation(s)
- Dan Geng
- Department of Neurology; West China Hospital of Sichuan University; Chengdu Sichuan China
| | - RuWei Ou
- Department of Neurology; West China Hospital of Sichuan University; Chengdu Sichuan China
| | - XiaoHui Miao
- Department of Neurology; West China Hospital of Sichuan University; Chengdu Sichuan China
| | - LiHong Zhao
- Department of Neurology; West China Hospital of Sichuan University; Chengdu Sichuan China
| | - QianQian Wei
- Department of Neurology; West China Hospital of Sichuan University; Chengdu Sichuan China
| | - XuePing Chen
- Department of Neurology; West China Hospital of Sichuan University; Chengdu Sichuan China
| | - Yan Liang
- Department of Neurology; West China Hospital of Sichuan University; Chengdu Sichuan China
| | - HuiFang Shang
- Department of Neurology; West China Hospital of Sichuan University; Chengdu Sichuan China
| | - Rong Yang
- Department of Neurology; West China Hospital of Sichuan University; Chengdu Sichuan China
| |
Collapse
|
35
|
Kong WQ, Gao CD, Hu SF, Ren JL, Zhao LH, Sun RC. Xylan-Modified-Based Hydrogels with Temperature/pH Dual Sensitivity and Controllable Drug Delivery Behavior. Materials (Basel) 2017; 10:E304. [PMID: 28772664 PMCID: PMC5503382 DOI: 10.3390/ma10030304] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/20/2017] [Revised: 02/24/2017] [Accepted: 03/13/2017] [Indexed: 11/19/2022]
Abstract
Among the natural macromolecules potentially used as the scaffold material in hydrogels, xylan has aroused great interest in many fields because of its biocompatibility, low toxicity, and biodegradability. In this work, new pH and thermoresponsive hydrogels were prepared by the cross-linking polymerization of maleic anhydride-modified xylan (MAHX) with N-isopropylacrylamide (NIPAm) and acrylic acid (AA) under UV irradiation to form MAHX-g-P(NIPAm-co-AA) hydrogels. The pore volume, the mechanical properties, and the release rate for drugs of hydrogels could be controlled by the degree of substitution of MAHX. These hydrogels were characterized by swelling ability, lower critical solution temperature (LCST), Fourier-transform infrared (FTIR), and SEM. Furthermore, the cumulative release rate was investigated for acetylsalicylic acid and theophylline, as well as the cytocompatibility MAHX-based hydrogels. Results showed that MAHX-based hydrogels exhibited excellent swelling-deswelling properties, uniform porous structure, and the temperature/pH dual sensitivity. In vitro, the cumulative release rate of acetylsalicylic acid for MAHX-based hydrogels was higher than that for theophylline, and in the gastrointestinal sustained drug release study, the acetylsalicylic acid release rate was extremely slow during the initial 3 h in the gastric fluid (24.26%), and then the cumulative release rate reached to 90.5% after sustained release for 5 h in simulated intestinal fluid. The cytotoxicity experiment demonstrated that MAHX-based hydrogels could promote cell proliferation and had satisfactory biocompatibility with NIH3T3 cells. These results indicated that MAHX-based hydrogels, as new drug carriers, had favorable behavior for intestinal-targeted drug delivery.
Collapse
Affiliation(s)
- Wei-Qing Kong
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China.
| | - Cun-Dian Gao
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China.
| | - Shu-Feng Hu
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China.
| | - Jun-Li Ren
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China.
| | - Li-Hong Zhao
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China.
| | - Run-Cang Sun
- Beijing Key Laboratory of Lignocellulosic Chemistry, Beijing Forestry University, Beijing 100083, China.
| |
Collapse
|
36
|
Yuan Y, Feng H, Wang L, Li Z, Shi Y, Zhao L, Feng Z, Zhu H. Potential of Endophytic Fungi Isolated from Cotton Roots for Biological Control against Verticillium Wilt Disease. PLoS One 2017; 12:e0170557. [PMID: 28107448 PMCID: PMC5249208 DOI: 10.1371/journal.pone.0170557] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2016] [Accepted: 01/06/2017] [Indexed: 01/08/2023] Open
Abstract
Verticillium wilt is a soil-borne disease, and severely limits the development of cotton production. To investigate the role of endophytic fungi on Verticillium wilt, CEF-818 (Penicillium simplicissimum), CEF-714 (Leptosphaeria sp.), CEF-642 (Talaromyces flavus.) and CEF-193 (Acremonium sp.) isolated from cotton roots were used to assess their effects against cotton wilt disease caused by a defoliating V. dahliae strain Vd080. In the greenhouse, all treatments significantly reduced disease incidence and disease index, with the control efficacy ranging from 26% (CEF-642) to 67% (CEF-818) at 25 days (d) after inoculation. In the disease nursery, compared to controls (with disease incidence of 33.8% and disease index of 31), CEF-818, CEF-193, CEF-714 and CEF-642 provided a protection effect of 69.5%, 69.2%, 54.6% and 45.7%, respectively. Especially, CEF-818 and CEF-714 still provided well protection against Verticillium wilt with 46.9% and 56.6% or 14.3% and 33.7% at the first peak of the disease in heavily infected field, respectively (in early July). These results indicated that these endophytes not only delayed but also reduced wilt symptoms on cotton. In the harvest, the available cotton bolls of plant treated with CEF-818 and CEF-714 increased to 13.1, and 12.2, respectively. And the seed cotton yield significantly increased after seed bacterization with CEF-818 (3442.04 kg/ha) compared to untreated control (3207.51 kg/ha) by 7.3%. Furtherly, CEF-818 and CET-714 treatment increased transcript levels for PAL, PPO, POD, which leads to the increase of cotton defense reactions. Our results indicate that seed treatment of cotton plants with CEF-818 and CET-714 can help in the biocontrol of V. dahliae and improve seed cotton yield in cotton fields. This study provided a better understanding of cotton-endophyte interactions which will aid in developing effective biocontrol agents for Verticillium wilt of cotton in futhre.
Collapse
Affiliation(s)
- Yuan Yuan
- State Key Laboratory of Cotton Biology, Institute of Cotton Research of Chinese Academy of Agricultural Sciences, Anyang, Henan, P. R. China
| | - Hongjie Feng
- State Key Laboratory of Cotton Biology, Institute of Cotton Research of Chinese Academy of Agricultural Sciences, Anyang, Henan, P. R. China
| | - Lingfei Wang
- State Key Laboratory of Cotton Biology, Institute of Cotton Research of Chinese Academy of Agricultural Sciences, Anyang, Henan, P. R. China
| | - Zhifang Li
- State Key Laboratory of Cotton Biology, Institute of Cotton Research of Chinese Academy of Agricultural Sciences, Anyang, Henan, P. R. China
| | - Yongqiang Shi
- State Key Laboratory of Cotton Biology, Institute of Cotton Research of Chinese Academy of Agricultural Sciences, Anyang, Henan, P. R. China
| | - LiHong Zhao
- State Key Laboratory of Cotton Biology, Institute of Cotton Research of Chinese Academy of Agricultural Sciences, Anyang, Henan, P. R. China
| | - Zili Feng
- State Key Laboratory of Cotton Biology, Institute of Cotton Research of Chinese Academy of Agricultural Sciences, Anyang, Henan, P. R. China
| | - Heqin Zhu
- State Key Laboratory of Cotton Biology, Institute of Cotton Research of Chinese Academy of Agricultural Sciences, Anyang, Henan, P. R. China
| |
Collapse
|
37
|
|
38
|
Zhang YL, Li ZF, Feng ZL, Feng HJ, Shi YQ, Zhao LH, Zhang XL, Zhu HQ. Functional Analysis of the Pathogenicity-Related Gene VdPR1 in the Vascular Wilt Fungus Verticillium dahliae. PLoS One 2016; 11:e0166000. [PMID: 27846253 PMCID: PMC5112940 DOI: 10.1371/journal.pone.0166000] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2016] [Accepted: 10/23/2016] [Indexed: 11/24/2022] Open
Abstract
Verticillium dahliae Kleb., the causal agent of vascular wilt, can seriously diminish the yield and quality of many crops, including cotton. The pathogenic mechanism to cotton is complicated and unclear now. To screen pathogencity related genes and identify their function is the reliable way to explain the mechanism. In this study, we obtained a low-pathogenicity mutant vdpr1 from a T-DNA insertional library of the highly virulent isolate of V. dahliae Vd080, isolated from cotton. The tagged gene was named pathogenicity-related gene (VdPR1). The deletion mutant ΔVdPR1 did not form microsclerotia and showed a drastic reduction in spore yield and mycelial growth, compared to wild type. Also, ΔVdPR1 showed significantly lower protease and cellulase activities than those of wild type. Complementation of the mutant strain with VdPR1 (strain ΔVdPR1-C) almost completely rescued the attributes described above to wild-type levels. The knockout mutant ΔVdPR1 showed delayed infection, caused mild disease symptoms, formed a smaller biomass in roots of the host, and showed compromised systemic invasive growth in the xylem. These results suggest that VdPR1 is a multifaceted gene involved in regulating the growth development, early infection and pathogenicity of V. dahliae.
Collapse
Affiliation(s)
- Ya-Lin Zhang
- State Key Laboratory of Cotton Biology, Institute of Cotton Research of Chinese Academy of Agricultural Sciences, Anyang, Henan, 455000, China
| | - Zhi-Fang Li
- State Key Laboratory of Cotton Biology, Institute of Cotton Research of Chinese Academy of Agricultural Sciences, Anyang, Henan, 455000, China
| | - Zi-Li Feng
- State Key Laboratory of Cotton Biology, Institute of Cotton Research of Chinese Academy of Agricultural Sciences, Anyang, Henan, 455000, China
| | - Hong-Jie Feng
- State Key Laboratory of Cotton Biology, Institute of Cotton Research of Chinese Academy of Agricultural Sciences, Anyang, Henan, 455000, China
| | - Yong-Qiang Shi
- State Key Laboratory of Cotton Biology, Institute of Cotton Research of Chinese Academy of Agricultural Sciences, Anyang, Henan, 455000, China
| | - Li-Hong Zhao
- State Key Laboratory of Cotton Biology, Institute of Cotton Research of Chinese Academy of Agricultural Sciences, Anyang, Henan, 455000, China
| | - Xi-Ling Zhang
- State Key Laboratory of Cotton Biology, Institute of Cotton Research of Chinese Academy of Agricultural Sciences, Anyang, Henan, 455000, China
- * E-mail: (XLZ); (HQZ)
| | - He-Qin Zhu
- State Key Laboratory of Cotton Biology, Institute of Cotton Research of Chinese Academy of Agricultural Sciences, Anyang, Henan, 455000, China
- * E-mail: (XLZ); (HQZ)
| |
Collapse
|
39
|
Xin XJ, Zhang T, Zhang S, Zhao LH. [Impact of age and gender on ultrasound imaging and TI-RADS stratification in patients with thyroid nodules]. Zhonghua Zhong Liu Za Zhi 2016; 38:602-6. [PMID: 27531480 DOI: 10.3760/cma.j.issn.0253-3766.2016.08.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
OBJECTIVE To explore the application value of Thyroid Imaging Reporting and Data System (TI-RADS) stratification in diagnosing thyroid nodules in respect of the effect of age and gender. METHODS A total of 684 patients with thyroid nodules, including 118 males and 566 females, were stratified into subgroups according to their age and gender, and the results of TI-RADS evaluation were compared with their pathological diagnosis. RESULTS The sensitivity, specificity, and AUC of TI-RADS grading for malignant thyroid nodules in the males was 84.7%, 66.7%, and 0.803 (95% CI 0.709-0.897), respectively. In the females, the sensitivity and specificity were 80.8% and 65.0%, respectively, with an AUC of 0.812 (95% CI 0.758-0.849). There was no statistically significant difference between genders when using TI-RADS to determine the nature of thyroid nodules (P>0.05). In the patients aged 26-35 years, the sensitivity, specificity and AUC of TI-RADS classification for malignant thyroid nodules were 85.4%, 90.0%, and 0.915 (95% CI 0.818-0.987), respectively. In the patients aged 36-45 years, the sensitivity and specificity of TI-RADS classification for malignant thyroid nodules were 84.4% and 78.1%, respectively, with an AUC of 0.898 (95% CI 0.842-0.953). In the patients aged 46-55 years, the corresponding parameters were 79.7%, 71.4% and AUC 0.822 (95% CI 0.789-0.925), respectivey, while in those aged 56-65 years, the corresponding data were 75.6%, 60.0%, and AUC 0.729 (95% CI 0.576-0.785), respectively. The ROC curve of patients aged 56-65 years was statistically significantly different from those of patients aged 26-35, 36-45 and 46-55 years (P<0.05 for all). CONCLUSIONS Patient gender has no significant effect on the results of TI-RADS classification, but age of the patients does. The age factor should be considered during ultrasound diagnosis of thyroid nodules using TI-RADS classification.
Collapse
Affiliation(s)
- X J Xin
- Department of Ultrasound, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center of Cancer, Key Laborary of Cancer Prevention and Therapy, Tianjin 300060, China
| | - T Zhang
- Department of Ultrasound, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center of Cancer, Key Laborary of Cancer Prevention and Therapy, Tianjin 300060, China
| | - S Zhang
- Department of Ultrasound, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center of Cancer, Key Laborary of Cancer Prevention and Therapy, Tianjin 300060, China
| | - L H Zhao
- Department of Ultrasound, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center of Cancer, Key Laborary of Cancer Prevention and Therapy, Tianjin 300060, China
| |
Collapse
|
40
|
Pei QM, Jiang P, Yang M, Qian XJ, Liu JB, Zheng H, Zhao LH, Kim SH. Upregulation of a disintegrin and metalloproteinase-33 by VEGF in human airway smooth muscle cells: Implications for asthma. Cell Cycle 2016; 15:2819-26. [PMID: 27579513 PMCID: PMC5053581 DOI: 10.1080/15384101.2016.1220462] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Asthma is a chronic respiratory disease characterized by reversible airway obstruction with persistent airway inflammation and airway remodeling. Features of airway remodeling include increased airway smooth muscle (ASM) mass. A disintegrin and metalloproteinase (ADAM)-33 has been identified as playing a role in the pathophysiology of asthma. ADAM-33 is expressed in ASM cells and is suggested to play a role in the function of these cells. However, the regulation of ADAM-33 is not fully understood. Vascular endothelial growth factor (VEGF) has been implicated in inflammatory and airway blood vessel remodeling in asthmatics. Although VEGF was initially thought of as an endothelial-specific growth factor, recent reports have found that VEGF can promote proliferation of other cell types, including ASM cells. To investigate the precise mechanism of VEGF's effect on ASM cell proliferation, we tested the expression of ADAM-33, phospho-extracellularsignal-regulated kinase 1/2 (ERK1/2), and phospho-Akt in VEGF-stimulated ASM cells. We found that VEGF up-regulates ADAM-33 mRNA and protein levels in a dose- and time-dependent manner as well as phosphorylation of ERK1/2 and Akt. We also found that VEGF-induced ASM cell proliferation is inhibited by both ADAM-33 knockdown and a selective VEGF receptor 2 (VEGFR2) inhibitor (SU1498). Furthermore, VEGF-induced ADAM-33 expression and ASM cell proliferation were suppressed by inhibiting ERK1/2 activity, but not by inhibiting Akt activity. Collectively, our findings suggest that VEGF enhances ADAM-33 expression and ASM cell proliferation by activating the VEGFR2/ERK1/2 signaling pathway, which might be involved in the pathogenesis of airway remodeling. Further elucidation of the mechanisms underlying these observations might help develop therapeutic strategies for airway diseases associated with smooth muscle hyperplasia such as asthma.
Collapse
Affiliation(s)
- Qing-Mei Pei
- a Department of Radiology , Tianjin Hospital of Integrated Traditional Chinese and Western Medicine , Tianjin , China
| | - Ping Jiang
- b Department of Respiration , Tianjin First Central Hospital , Tianjin , China
| | - Min Yang
- b Department of Respiration , Tianjin First Central Hospital , Tianjin , China
| | - Xue-Jiao Qian
- b Department of Respiration , Tianjin First Central Hospital , Tianjin , China
| | - Jiang-Bo Liu
- b Department of Respiration , Tianjin First Central Hospital , Tianjin , China
| | - Hong Zheng
- b Department of Respiration , Tianjin First Central Hospital , Tianjin , China
| | - Li-Hong Zhao
- b Department of Respiration , Tianjin First Central Hospital , Tianjin , China
| | - Sung-Ho Kim
- b Department of Respiration , Tianjin First Central Hospital , Tianjin , China
| |
Collapse
|
41
|
Zheng H, Chen JN, Yu X, Jiang P, Yuan L, Shen HS, Zhao LH, Chen PF, Yang M. HMGB1 Enhances Drug Resistance and Promotes In Vivo Tumor Growth of Lung Cancer Cells. DNA Cell Biol 2016; 35:622-627. [PMID: 27383136 DOI: 10.1089/dna.2016.3360] [Citation(s) in RCA: 25] [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] [Indexed: 01/19/2023] Open
Abstract
Drug resistance is an obstacle in the chemotherapeutic treatment of lung cancers. In the present study, the effects of high-mobility group box 1 (HMGB1) protein in chemotherapeutic resistance and the relationships between HMGB1 and chemotherapy drug-induced cell apoptosis or necrosis were clarified. We used cisplatin-sensitive A549 cells and cisplatin-resistant A549/DDP cells as cell models with IC50 of 11.58 and 46.95 μM, respectively. A549/DDP had higher level of HMGB1 compared with A549 cells. Interestingly, with the increasing concentration of DDP, HMGB1 was gradually located into cytoplasm in cisplatin-sensitive A549 cells. Moreover, interference with endogenous HMGB1 sensitized the effects of chemotherapeutic drugs, including 5-Fu, DDP, and OXA. Furthermore, results from an in vivo tumorigenesis experiment demonstrated that serum concentration of HMGB1 was much lower in the group inoculated with HMGB1 shRNA-transfected A549 cells than in the N.C. shRNA-transfected A549 inoculated group, as well as the tumor volume, suggesting that serum HMGB1 contributed to tumor growth in a mouse model. In conclusion, higher levels of HMGB1 probably contributed to chemotherapy drug resistance, and higher serum concentration of HMGB1 promoted in vivo tumor growth. The study would provide new clues to overcome drug resistance in chemotherapy of human lung cancers.
Collapse
Affiliation(s)
- Hong Zheng
- 1 Department of Respiration, The First Central Hospital of Tianjin , Tianjin, China
| | - Jia-Ning Chen
- 1 Department of Respiration, The First Central Hospital of Tianjin , Tianjin, China
| | - Xi Yu
- 1 Department of Respiration, The First Central Hospital of Tianjin , Tianjin, China
| | - Ping Jiang
- 1 Department of Respiration, The First Central Hospital of Tianjin , Tianjin, China
| | - Ling Yuan
- 2 Tianjin Institute of Medical Sciences , Tianjin, China
| | | | - Li-Hong Zhao
- 1 Department of Respiration, The First Central Hospital of Tianjin , Tianjin, China
| | - Pan-Feng Chen
- 1 Department of Respiration, The First Central Hospital of Tianjin , Tianjin, China
| | - Min Yang
- 1 Department of Respiration, The First Central Hospital of Tianjin , Tianjin, China
| |
Collapse
|
42
|
Liu C, Wu GQ, Fu XW, Mo XH, Zhao LH, Hu HM, Zhu SE, Hou YP. The Extracellular Calcium-Sensing Receptor (CASR) Regulates Gonadotropins-Induced Meiotic Maturation of Porcine Oocytes. Biol Reprod 2015; 93:131. [PMID: 26490840 DOI: 10.1095/biolreprod.115.128579] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2015] [Accepted: 10/14/2015] [Indexed: 12/16/2022] Open
Abstract
Gonadotropins and epidermal growth factor (EGF) play crucial roles in promoting oocyte maturation. The regulatory network downstream of these key factors is not well understood. The present study was designed to investigate the role of the calcium-sensing receptor (CASR) in porcine oocyte in vitro maturation. CASR expression was up-regulated in oocytes matured in gonadotropin-containing medium. Cortical distribution of CASR was enhanced with gonadotropins but not EGF. Supplementation of a CASR agonist (NPS R-568) in the gonadotropin (FSH and/or LH)-containing maturation medium significantly enhanced oocyte nuclear maturation. Addition of NPS2390, a CASR antagonist, compromised oocyte nuclear maturation. Furthermore, increased cortical distribution and decreased expression of CASR was observed after the NPS R-568 treatment. Oocytes treated with NPS R-568 had higher concentration of CYCLIN B1, decreased reactive oxygen species, and increased glutathione levels, indicative of advanced cytoplasmic maturation. In contrast, NPS2390 treatment compromised oocyte cytoplasmic maturation. A higher blastocyst formation rate after parthenogenetic activation was observed when oocytes were matured in the presence of the CASR agonist, NPS R-568. MAPK3/1 phosphorylation was increased during in vitro maturation and after NPS R-568 treatment, and decreased following CASR antagonist supplementation. Taken together, our data showed that the CASR is a gonadotropin-regulated factor that promotes porcine oocyte maturation in a MAPK-dependent manner.
Collapse
Affiliation(s)
- Cong Liu
- State Key Laboratory for Agrobiotechnology, College of Biological Sciences, China Agricultural University, Beijing, China
| | - Guo-Quan Wu
- Yunnan Animal Science and Veterinary Institute, Kunming, Yunnan, China
| | - Xiang-Wei Fu
- Key Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Agriculture and National Engineering Laboratory for Animal Breeding, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Xian-Hong Mo
- State Key Laboratory for Agrobiotechnology, College of Biological Sciences, China Agricultural University, Beijing, China
| | - Li-Hong Zhao
- State Key Laboratory for Agrobiotechnology, College of Biological Sciences, China Agricultural University, Beijing, China
| | - Hong-Mei Hu
- State Key Laboratory for Agrobiotechnology, College of Biological Sciences, China Agricultural University, Beijing, China
| | - Shi-En Zhu
- Key Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Agriculture and National Engineering Laboratory for Animal Breeding, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Yun-Peng Hou
- State Key Laboratory for Agrobiotechnology, College of Biological Sciences, China Agricultural University, Beijing, China
| |
Collapse
|
43
|
Zhao LH, Liu HG. Immunohistochemical detection and clinicopathological significance of JARID1B/KDM5B and P16 expression in invasive ductal carcinoma of the breast. Genet Mol Res 2015; 14:5417-26. [PMID: 26125737 DOI: 10.4238/2015.may.22.11] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [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 aims of this study were to investigate the expression of the H3K4 demethylase, jumonji AT-rich interactive domain 1B (JARID1B/KDM5B) and of p16 (multiple tumor suppressor gene MTS1) in breast cancer tissue and determine its clinicopathological significance. JARID1B/KDM5B and P16 protein expression in 176 resected breast cancer specimens and adjacent normal breast tissue was detected by the streptavidin-peroxidase (S-P) immunohistochemical method. The TNM staging grade was assigned according to the World Health Organization (2012) breast classification system. The positive staining rate of JARID1B/KDM5B and p16 protein in cancer tissue was 74.43 and 35.8%, respectively. JARID1B/KDM5B protein expression was positively associated with T grade, Bloom and Richardson (B&R) score and axillary lymph node metastasis (P < 0.05). p16 protein expression was negatively associated with T grade, B&R score, and axillary lymph node metastasis (P < 0.05). JARID1B/KDM5B and p16 protein expression in breast cancer and adjacent normal breast tissue were negatively correlated (r = -0.303, P < 0.001). The data demonstrated that protein expression of p16 and JARID1B/KDM5B is negatively correlated in invasive ductal carcinoma of the breast.
Collapse
Affiliation(s)
- L H Zhao
- Department of Pathology, Beijing Tongren Hospital, Capital Medical University, Dongcheng District, Beijing, China
| | - H G Liu
- Department of Pathology, Beijing Tongren Hospital, Capital Medical University, Dongcheng District, Beijing, China
| |
Collapse
|
44
|
Zhang YL, Li ZF, Feng ZL, Feng HJ, Zhao LH, Shi YQ, Hu XP, Zhu HQ. Isolation and functional analysis of the pathogenicity-related gene VdPR3 from Verticillium dahliae on cotton. Curr Genet 2015; 61:555-66. [PMID: 25652159 DOI: 10.1007/s00294-015-0476-z] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2014] [Revised: 12/29/2014] [Accepted: 01/25/2015] [Indexed: 10/24/2022]
Abstract
The fungal plant pathogen Verticillium dahliae is the causal agent of vascular wilt, a disease that can seriously diminish cotton fiber yield. The pathogenicity mechanism and the identity of the genes that interact with cotton during the infection process still remain unclear. In this study, we investigated the low-pathogenic, non-microsclerotium-producing mutant vdpr3 obtained in a previous study from the screening of a T-DNA insertional library of the highly virulent isolate Vd080; the pathogenicity-related gene (VdPR3) in wild-type strain Vd080 was cloned. Knockout mutants (ΔVdPR3) showed lower mycelium growth and obvious reduction in sporulation ability without microsclerotium formation. An evaluation of carbon utilization in mutants and wild-type isolate Vd080 demonstrated that mutants-lacking VdPR3 exhibited decreased cellulase and amylase activities, which was restored in the complementary mutants (ΔVdPR3-C) to levels similar to those of Vd080. ΔVdPR3 postponed infectious events in cotton and showed a significant reduction in pathogenicity. Reintroduction of a functional VdPR3 copy into ΔVdPR3-C restored the ability to infect cotton plants. These results suggest that VdPR3 is a multifunctional gene involved in growth development, extracellular enzyme activity, and virulence of V. dahliae on cotton.
Collapse
Affiliation(s)
- Ya-Lin Zhang
- State Key Laboratory of Cotton Biology, Institute of Cotton Research of Chinese Academy of Agricultural Sciences, Anyang, 455000, Henan, China
| | - Zhi-Fang Li
- State Key Laboratory of Cotton Biology, Institute of Cotton Research of Chinese Academy of Agricultural Sciences, Anyang, 455000, Henan, China
| | - Zi-Li Feng
- State Key Laboratory of Cotton Biology, Institute of Cotton Research of Chinese Academy of Agricultural Sciences, Anyang, 455000, Henan, China
| | - Hong-Jie Feng
- State Key Laboratory of Cotton Biology, Institute of Cotton Research of Chinese Academy of Agricultural Sciences, Anyang, 455000, Henan, China
| | - Li-Hong Zhao
- State Key Laboratory of Cotton Biology, Institute of Cotton Research of Chinese Academy of Agricultural Sciences, Anyang, 455000, Henan, China
| | - Yong-Qiang Shi
- State Key Laboratory of Cotton Biology, Institute of Cotton Research of Chinese Academy of Agricultural Sciences, Anyang, 455000, Henan, China
| | - Xiao-Ping Hu
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Plant Protection, Northwest A&F University, Yangling, 712100, Shaanxi, China.
| | - He-Qin Zhu
- State Key Laboratory of Cotton Biology, Institute of Cotton Research of Chinese Academy of Agricultural Sciences, Anyang, 455000, Henan, China.
| |
Collapse
|
45
|
Zhao LH, Lin QL, Wei J, Huai YL, Wang KJ, Yan HY. CD44v6 expression in patients with stage II or stage III sporadic colorectal cancer is superior to CD44 expression for predicting progression. Int J Clin Exp Pathol 2015; 8:692-701. [PMID: 25755763 PMCID: PMC4348888] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 10/31/2014] [Accepted: 12/22/2014] [Indexed: 06/04/2023]
Abstract
BACKGROUND Currently, it is difficult to predict the prognosis of patients exhibiting stage II or stage III colorectal cancer (CRC) and to identify those patients most likely to benefit from aggressive treatment. The current study was performed to examine the clinicopathological significance of CD44 and CD44v6 protein expression in these patients. STUDY DESIGN We retrospectively investigated 187 consecutive patients who underwent surgery with curative intent for stage II to III CRC from 2007 to 2013 in the Beijing Civil Aviation Hospital. CD44 and CD44v6 protein expression levels were determined using immunohistochemistry and compared to the clinicopathological data. RESULTS Using immunohistochemical detection, CD44 expression was observed in 108 (57.75%) of the CRC patients; and its detection was significantly associated with greater invasion depth, lymph node metastasis, angiolymphatic invasion, and a more advanced pathological tumor-lymph node-metastasis (TNM) stage. CD44v6 expression was observed in 135 (72.19%) of the CRC patients; and its expression was significantly associated with a poorly differentiated histology, greater invasion depth, lymph node metastasis, angiolymphatic invasion, and a more advanced pathological TNM stage. Expression of CD44v6 was higher than that of CD44 in stage II and stage III sporadic CRC. CONCLUSION CD44v6 is a more useful marker for predicting a poor prognosis in stage II and stage III sporadic CRC as compared to CD44.
Collapse
Affiliation(s)
- L H Zhao
- Department of Pathology, Beijing Civil Aviation Hospital 1 Gao Jing Jia, Chao Yang District, Beijing 100123, China
| | - Q L Lin
- Department of Pathology, Beijing Civil Aviation Hospital 1 Gao Jing Jia, Chao Yang District, Beijing 100123, China
| | - J Wei
- Department of Pathology, Beijing Civil Aviation Hospital 1 Gao Jing Jia, Chao Yang District, Beijing 100123, China
| | - Y L Huai
- Department of Pathology, Beijing Civil Aviation Hospital 1 Gao Jing Jia, Chao Yang District, Beijing 100123, China
| | - K J Wang
- Department of Pathology, Beijing Civil Aviation Hospital 1 Gao Jing Jia, Chao Yang District, Beijing 100123, China
| | - H Y Yan
- Department of Pathology, Beijing Civil Aviation Hospital 1 Gao Jing Jia, Chao Yang District, Beijing 100123, China
| |
Collapse
|
46
|
Li ZF, Wang LF, Feng ZL, Zhao LH, Shi YQ, Zhu HQ. Diversity of Endophytic Fungi from Different Verticillium-Wilt-Resistant Gossypium hirsutum and Evaluation of Antifungal Activity Against Verticillium dahliae In Vitro. J Microbiol Biotechnol 2014; 24:1149-61. [DOI: 10.4014/jmb.1402.02035] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
|
47
|
Li Y, Ma QG, Zhao LH, Guo YQ, Duan GX, Zhang JY, Ji C. Protective Efficacy of Alpha-lipoic Acid against AflatoxinB1-induced Oxidative Damage in the Liver. Asian-Australas J Anim Sci 2014; 27:907-15. [PMID: 25050030 PMCID: PMC4093170 DOI: 10.5713/ajas.2013.13588] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/19/2013] [Revised: 12/24/2013] [Accepted: 01/09/2014] [Indexed: 11/30/2022]
Abstract
Alpha-lipoic acid (α-LA) is not only involved in energy metabolism, but is also a powerful antioxidant that can protect against hepatic oxidative stress induced by some drugs, toxins, or under various physiological and pathophysiological conditions. Here, we investigated the effect of α-LA against liver oxidative damage in broilers exposed to aflatoxin B1 (AFB1). Birds were randomly divided into four groups and assigned different diets: basal diet, 300 mg/kg α-LA supplementation in basal diet, diet containing 74 μg/kg AFB1, and 300 mg/kg α-LA supplementation in diet containing 74 μg/kg AFB1, for 3 weeks. The results revealed that the addition of 300 mg/kg α-LA protected against the liver function damage of broilers induced by chronic low dose of AFB1 as estimated by a significant (p<0.05) change in levels of plasma total protein, albumin, alkaline phosphatase and the activities of liver glutamic-oxalacetic transaminase and glutamic-pyruvic transaminase. The histopathological analysis also showed that liver tissues were injured in the AFB1 diet, but this effect was alleviated by the addition of 300 mg/kg α-LA. Additionally, AFB1 induced a profound elevation of oxidative stress in birds, as indicated by an increase in malondialdehyde level, a decrease in glutathione peroxidase activity and a depletion of the glutathione content in the liver. All of these negative effects were inhibited by treatment with α-LA. Our results suggest that the inhibition of AFB1-induced excess production of lipid peroxides and the maintenance of intracellular antioxidant status may play important roles in the protective effects of α-LA against AFB1-induced oxidative damage in the liver.
Collapse
Affiliation(s)
- Y Li
- Animal Science and Technology College, Beijing University of Agriculture, Beijing 102206, China
| | - Q G Ma
- Animal Science and Technology College, Beijing University of Agriculture, Beijing 102206, China
| | - L H Zhao
- Animal Science and Technology College, Beijing University of Agriculture, Beijing 102206, China
| | - Y Q Guo
- Animal Science and Technology College, Beijing University of Agriculture, Beijing 102206, China
| | - G X Duan
- Animal Science and Technology College, Beijing University of Agriculture, Beijing 102206, China
| | - J Y Zhang
- Animal Science and Technology College, Beijing University of Agriculture, Beijing 102206, China
| | - C Ji
- Animal Science and Technology College, Beijing University of Agriculture, Beijing 102206, China
| |
Collapse
|
48
|
Li Y, Ma QG, Zhao LH, Wei H, Duan GX, Zhang JY, Ji C. Effects of lipoic acid on immune function, the antioxidant defense system, and inflammation-related genes expression of broiler chickens fed aflatoxin contaminated diets. Int J Mol Sci 2014; 15:5649-62. [PMID: 24699046 PMCID: PMC4013587 DOI: 10.3390/ijms15045649] [Citation(s) in RCA: 54] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2014] [Revised: 03/06/2014] [Accepted: 03/18/2014] [Indexed: 11/16/2022] Open
Abstract
This study was designed to evaluate the effect of low level of Aflatoxin B1 (AFB1) on oxidative stress, immune reaction and inflammation response and the possible ameliorating effects of dietary alpha-lipoic acid (α-LA) in broilers. Birds were randomly allocated into three groups and assigned to receive different diets: basal diet, diet containing 74 μg/kg AFB1, and 300 mg/kg α-LA supplementation in diet containing 74 μg/kg AFB1 for three weeks. The results showed that the serum levels of malondialdehyde, tumor necrosis factor alpha (TNFα) and interferon gamma (IFNγ) in the AFB1-treated group were significantly increased than the control group. In addition, the increased expressions of interleukin 6 (IL6), TNFα and IFNγ were observed in birds exposed to the AFB1-contaminated diet. These degenerative changes were inhibited by α-LA-supplement. The activities of total superoxide dismutase and glutathione peroxidase, the levels of humoral immunity, and the expressions of nuclear factor-κB p65 and heme oxygenase-1, however, were not affected by AFB1. The results suggest that α-LA alleviates AFB1 induced oxidative stress and immune changes and modulates the inflammatory response at least partly through changes in the expression of proinflammatory cytokines of spleen such as IL6 and TNFα in broiler chickens.
Collapse
Affiliation(s)
- Yan Li
- State Key Laboratory of Animal Nutrition, College of Animal Science & Technology, China Agricultural University, Beijing 100193, China.
| | - Qiu-Gang Ma
- State Key Laboratory of Animal Nutrition, College of Animal Science & Technology, China Agricultural University, Beijing 100193, China.
| | - Li-Hong Zhao
- State Key Laboratory of Animal Nutrition, College of Animal Science & Technology, China Agricultural University, Beijing 100193, China.
| | - Hua Wei
- Translational Medicine Lab, Chinese National Human Genome Center, Beijing 100176, China.
| | - Guo-Xiang Duan
- State Key Laboratory of Animal Nutrition, College of Animal Science & Technology, China Agricultural University, Beijing 100193, China.
| | - Jian-Yun Zhang
- State Key Laboratory of Animal Nutrition, College of Animal Science & Technology, China Agricultural University, Beijing 100193, China.
| | - Cheng Ji
- State Key Laboratory of Animal Nutrition, College of Animal Science & Technology, China Agricultural University, Beijing 100193, China.
| |
Collapse
|
49
|
Zhao LH, Shi ZH, Yin NN, Zhou JX. Use of dexmedetomidine for prophylactic analgesia and sedation in delayed extubation patients after craniotomy: a study protocol and statistical analysis plan for a randomized controlled trial. Trials 2013; 14:251. [PMID: 23941549 PMCID: PMC3751309 DOI: 10.1186/1745-6215-14-251] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2013] [Accepted: 08/07/2013] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Pain and agitation are common in patients after craniotomy. They can result in tachycardia, hypertension, immunosuppression, increased catecholamine production and increased oxygen consumption. Dexmedetomidine, an alpha-2 agonist, provides adequate sedation without respiratory depression, while facilitating frequent neurological evaluation. METHODS/DESIGN The study is a prospective, randomized, double-blind, controlled, parallel-group design. Consecutive patients are randomly assigned to one of the two treatment study groups, labeled 'Dex group' or 'Saline group.' Dexmedetomidine group patients receive a continuous infusion of 0.6 μg/kg/h (10 ug/ml). Placebo group patients receive a maintenance infusion of 0.9% sodium chloride for injection at a volume and rate equal to that of dexmedetomidine. The mean percentages of time in optimal sedation, vital signs, various and adverse events, the percentage of patients requiring propofol for rescue to achieve/maintain targeted sedation (Sedation-Agitation Scale, SAS 3 to 4) and total dose of propofol required throughout the study drug infusion are collected. The percentage of patients requiring fentanyl for additional rescue to analgesia and total dose of fentanyl required are recorded. The effects of dexmedetomidine on hemodynamic and recovery responses during extubation are measured. Intensive care unit and hospital length of stay also are collected. Plasma levels of epinephrine, norepinephrine, dopamine, cortisol, neuron-specific enolase and S100-B are measured before infusion (T1), at two hours (T2), four hours (T3) and eight hours (T4) after infusion and at the end of infusion (T5) in 20 patients in each group. DISCUSSION The study has been initiated as planned in July 2012. One interim analysis advised continuation of the trial. The study will be completed in July 2013. TRIAL REGISTRATION ClinicalTrials (NCT): ChiCTR-PRC-12002903.
Collapse
|
50
|
Zhao LH, Zhao SP. Molecular basis of high-level ciprofloxacin resistance in Neisseria gonorrhoeae strains from Shandong Province, China. Braz J Microbiol 2013; 44:273-6. [PMID: 24159315 PMCID: PMC3804209 DOI: 10.1590/s1517-83822013005000020] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2011] [Accepted: 07/02/2012] [Indexed: 11/22/2022] Open
Abstract
In the study, the ciprofloxacin resistance rate was 100%. High-level ciprofloxacin resistance rate was 63.55%. Sixteen different mutation patterns involved in the formation of ciprofloxacin resistance were identified. The most prevalent were patterns P7 (25.2%), P8 (15.0%), P9 (11.2%), P1 (10.3%), and P5 (10.3%). All of the 107 NG isolates analyzed for mutations in the study have demonstrated a change of Ser-91 → Phe in the gyrA gene, and all except one have demonstrated a change in position 95 of the amino acid sequence. All of the 68 high-level QRNG isolates had double mutations in gyrA gene combined with a single or two mutations in parC gene. It is most important that a new mutation site of Ile-97 → Met in gyrA and a new mutation of Leu-106 → Ile in parC were found in the study, both leading to high-level ciprofloxacin resistance (MIC values, 8 μg/mL, 32 μg/mL, respectively). Therefore, we confim that gyrA mutations are necessary for the fluoroquinolone resistance phenotype and parC mutations are correlated intimately with high-level fluoroquinolone resistance. In China fluoroquinolone resistance in Neisseria gonorrhoeae strains is very serious and the new mutation sites in the fluoroquinolone resistance-determining regions emerge more and more quickly. Hence, in China fluoroquinolones, which are used to treat gonorrhoea presently, should be substituted by a new antibiotics.
Collapse
Affiliation(s)
- L H Zhao
- Department of Laboratory, Taian Central Hospital, Taian, P.R. China
| | | |
Collapse
|