1
|
Wang L, Yang L, Cheng XL, Qin XM, Chai Z, Li ZY. The Beneficial Effects of Dietary Astragali Radix Are Related to the Regulation of Gut Microbiota and Its Metabolites. J Med Food 2024; 27:22-34. [PMID: 38236693 DOI: 10.1089/jmf.2023.k.0091] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2024] Open
Abstract
Astragali Radix (AR) or its extract has been used as an herbal medicine and dietary supplement in China, Europe, and the United States. The gut microbiota could provide new insights for exploring dietary supplements' underlying mechanism on organisms. However, no reports have focused on the regulatory effect of AR on the gut microbiota as a dietary supplement. In this study, healthy ICR mice of either sex were divided into AR and control (CON) groups and given AR water extract (4.55 mg/kg·day-1) or saline by gavage for 14 days, respectively. Then 16S rRNA gene sequencing and ultra-high-performance liquid chromatography quadrupole time-of-flight tandem mass spectrometry-based fecal metabolomics were integrated to investigate the benefits of dietary AR. Weighted gene coexpression network analysis was also introduced to investigate the metabolites with highly synergistic changes. AR supplementation influenced the structure of intestinal microflora, especially enriching short-chain fatty acid-producing bacteria g_Coprobacillus, g_Prevotella, and g_Parabacteroides. AR also significantly altered the fecal metabolome, mainly related to amino acid metabolism, nucleotide metabolism, and bile acid (BA) metabolism. Moreover, the increased secondary BAs and BA-sulfates might closely relate to intestinal microflora. These findings provide valuable insights for future research of dietary AR as a functional food.
Collapse
Affiliation(s)
- Ling Wang
- Modern Research Center for Traditional Chinese Medicine, The Key Laboratory of Chemical Biology and Molecular Engineering of Ministry of Education, Shanxi University, Taiyuan, Shanxi, China
| | - Lan Yang
- Modern Research Center for Traditional Chinese Medicine, The Key Laboratory of Chemical Biology and Molecular Engineering of Ministry of Education, Shanxi University, Taiyuan, Shanxi, China
| | - Xiao-Ling Cheng
- Modern Research Center for Traditional Chinese Medicine, The Key Laboratory of Chemical Biology and Molecular Engineering of Ministry of Education, Shanxi University, Taiyuan, Shanxi, China
| | - Xue-Mei Qin
- Modern Research Center for Traditional Chinese Medicine, The Key Laboratory of Chemical Biology and Molecular Engineering of Ministry of Education, Shanxi University, Taiyuan, Shanxi, China
| | - Zhi Chai
- College of Basic Medicine, Shanxi University of Chinese Medicine, Jinzhong, China
| | - Zhen-Yu Li
- Modern Research Center for Traditional Chinese Medicine, The Key Laboratory of Chemical Biology and Molecular Engineering of Ministry of Education, Shanxi University, Taiyuan, Shanxi, China
| |
Collapse
|
2
|
Cheng XL, Yang T, Yang L, Xin YJ, He M, Zhu L, Liu JY. [The analysis of a pedigree with hereditary coagulation factor Ⅴ deficiency caused by compound heterozygous variation of F5 gene]. Zhonghua Yi Xue Za Zhi 2023; 103:1323-1327. [PMID: 37150682 DOI: 10.3760/cma.j.cn112137-20220828-01821] [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: 05/09/2023]
Abstract
Objective: To analyze the gene variation of a genetic coagulation factor Ⅴ (FⅤ) deficiency pedigree and explore the molecular pathogenesis. Methods: The proband was a 32 years old female. The patient was prone to nose bleeding since childhood which was usually self-healed. On March 10, 2021, the proband went to the First Affiliated Hospital of Air Force Medical University for treatment of knee hematoma caused by a fall. None of the family members reported any history of bleeding. The prothrombin time (PT), activated partial thromboplastin time (APTT) and FⅤ activity (FⅤ: C) were detected by clotting method and the FⅤ antigen (FⅤ: Ag) was tested with enzyme-linked immunosorbent assay (ELISA). All exons and flanks of F5 gene were determined by Sanger sequencing. Clustalx-2.1-win, PolyPhen-2 and Swiss-PDBViewer software were used to analyze the conservatism of missense variation sites, whether the variations were harmful and their influences on protein structure and function. MutationTaster and NetGene2 software were used to analyze whether the splice site variation was harmful and its effect on the splice site. Results: The PT and APTT of the proband prolonged to 24.0 s and 69.8 s, respectively. The FⅤ: C and FⅤ: Ag decreased to 6% and 9%, respectively. There were compound heterozygous variations in F5 gene, which included c.911G>A heterozygous missense variation in exon 6 leading to p.Gly276Glu variation and c.5208+1G>A heterozygous missense variation in intron 15. The father and daughter had the p.Gly276Glu heterozygous variation. Her mother and son had the c.5208+1G>A heterozygous variation. Software analysis results of p.Gly276Glu heterozygous variation showed that Gly276 was conserved among homologous species, the variation was harmful, and it could affect the local structure and function of the protein. The c.5208+1G>A heterozygous variation was deleterious and resulted in the disappearance of the splice site, thereby affecting the protein function. Conclusion: The p.Gly276Glu and c.5208+1G>A compound heterozygous variants are deleterious variants associated with the patient's disease and may be the molecular pathogenesis of inherited FⅤ deficiency in this family.
Collapse
Affiliation(s)
- X L Cheng
- Department of Clinical Laboratory, the First Affiliated Hospital of Air Force Medical University, Xi'an 710032, China
| | - T Yang
- Department of Clinical Laboratory, the Quzhou Affiliated Hospital (Quzhou People's Hospital) of Wenzhou Medical University, Quzhou 324000, China
| | - L Yang
- Department of Clinical Laboratory, the First Affiliated Hospital of Air Force Medical University, Xi'an 710032, China
| | - Y J Xin
- Department of Clinical Laboratory, the First Affiliated Hospital of Air Force Medical University, Xi'an 710032, China
| | - M He
- Department of Clinical Laboratory, the First Affiliated Hospital of Air Force Medical University, Xi'an 710032, China
| | - L Zhu
- Department of Clinical Laboratory, the First Affiliated Hospital of Air Force Medical University, Xi'an 710032, China
| | - J Y Liu
- Department of Clinical Laboratory, the First Affiliated Hospital of Air Force Medical University, Xi'an 710032, China
| |
Collapse
|
3
|
Li ZP, Liu GQ, Yao WR, Chen ZP, Cheng XL, Sun J, Ai D, Wu RH. [Inhibitor with congenital factor Ⅶ deficiency in a child]. Zhonghua Er Ke Za Zhi 2023; 61:269-271. [PMID: 36849357 DOI: 10.3760/cma.j.cn112140-20230114-00033] [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: 03/01/2023]
Affiliation(s)
- Z P Li
- Hematology Center, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China
| | - G Q Liu
- Hematology Center, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China
| | - W R Yao
- Hematology Center, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China
| | - Z P Chen
- Hematology Center, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China
| | - X L Cheng
- Pharmacology Department, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China
| | - J Sun
- Hematology Center, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China
| | - D Ai
- Hematology Center, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China
| | - R H Wu
- Hematology Center, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China
| |
Collapse
|
4
|
Sun ZL, He JY, Cheng XL, Tan XX, Wu WH. Diagnosis, treatment and genetic analysis of a case of familial aldosteronism type II with WFS1 gene mutation. Yi Chuan 2022; 44:1072-1078. [PMID: 36384999 DOI: 10.16288/j.yczz.22-197] [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: 06/16/2023]
Abstract
Primary aldosteronism (PA) is a disease characterized by hypertension and hypokalemia due to the excessive aldosterone secretion from the adrenal cortex, which leads to the retention of both water and sodium, and the inhibition of the renin-angiotensin system as well. Familial hyperaldosteronism type II (FH-II) is known as an autosomal dominant hereditary disease, which is a scarce cause of PA. In this report, we cllected the clinical data of a patient with repeated hypertension and hypokalemia of uncertain diagnosis since 2014. Nevertheless, we discovered by genetic sequencing in 2021 that the CLCN2 and WFS1 gene mutation of the patient, whose mother belongs to heterozygote genotype and father belongs to wild-type genotype. Combined with a series of endocrine function tests and imaging studies, the patient was finally certified her suffering from FH-II and WFS1 gene mutation. By summarizing and analyzing the characteristics and genetic test results of this case, we recommended gene sequencing for patients with PA whose etiology is difficult to be determined clinically. This case also provides new clinical data for subsequent genetic studies of the disease.
Collapse
Affiliation(s)
- Zhi-Lian Sun
- Department of Endocrinology, Shenzhen Luohu People's Hospital, Shenzhen 518001, China
| | - Jun-Ying He
- Department of Endocrinology, Shenzhen Luohu People's Hospital, Shenzhen 518001, China
| | - Xiao-Ling Cheng
- Department of Endocrinology, Shenzhen Luohu People's Hospital, Shenzhen 518001, China
| | - Xiao-Xia Tan
- Department of Endocrinology, Shenzhen Luohu People's Hospital, Shenzhen 518001, China
| | - Wei-Hua Wu
- Department of Endocrinology, Shenzhen Luohu People's Hospital, Shenzhen 518001, China
| |
Collapse
|
5
|
Cheng XL, Cao XY, Wang XQ, Lin HL, Fang JC, Wang L. Diagnosing early scar pregnancy in the lower uterine segment after cesarean section by intracavitary ultrasound. World J Clin Cases 2022; 10:547-553. [PMID: 35097080 PMCID: PMC8771384 DOI: 10.12998/wjcc.v10.i2.547] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/26/2021] [Revised: 10/14/2021] [Accepted: 11/28/2021] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Early scar pregnancy (CSP) in the lower uterine segment after cesarean section is a type of ectopic pregnancy that can cause major complications if left untreated. Transabdominal ultrasound is a common procedure but is influenced by external factors. Thus, intracavitary ultrasound may have better diagnostic efficiency for CSP.
AIM To assess the value of intracavitary ultrasound for diagnosing CSP in the lower uterine segment after cesarean section.
METHODS Patients diagnosed with CSP in our hospital from October 2019 to April 2021 were recruited. Transabdominal and intracavitary ultrasound examinations were performed to compare the diagnostic differences for CSP and its types.
RESULTS Sixty-three patients were diagnosed during the study period. The diagnostic accuracy for CSP was higher in intracavitary ultrasound (96.83%) than in transabdominal ultrasound (84.13%) (P < 0.05). The missed diagnosis and misdiagnosis rates did not differ among the ultrasound types (intra: 0.00% and 3.17%; trans: 4.76% and 11.11%, respectively; P > 0.05). For the diagnostic rates for the CSP types, the rates for gestational sac (100.00% vs 90.48%), heterogeneous mass (93.75% vs 75.00%), and part of the uterine cavity (80.00% vs 60.00%) were higher in intracavitary ultrasound than in transabdominal ultrasound, but the difference was not statistically significant (P > 0.05). For gestational sac CSP patients, intracavitary ultrasound showed that the gestational sac was located in the lower uterine segment scar with abundant peripheral blood flow; the distance between the gestational sac and the serosal layer was 2.42 ± 0.50 cm. Intracavitary ultrasound for heterogeneous mass CSP patients indicated that the mass mainly occurred in the lower anterior uterine wall, protruding into the bladder, and was surrounded by abundant internal and peripheral blood flow; the distance between the mass and serosal layer was 1.79 ± 0.30 cm. For CSP type partly located in the uterine cavity, the gestational sac was partly located in the lower uterine cavity and partly in the scar with abundant internal and peripheral blood flow; the distance between the gestational sac and the serosal layer was 2.29 ± 0.28 cm.
CONCLUSION Intracavitary ultrasound had a higher diagnostic accuracy and application value for diagnosing CSP than transabdominal ultrasound, with reduced risk of missed diagnoses and misdiagnosis, thereby preventing delayed treatment.
Collapse
Affiliation(s)
- Xiao-Ling Cheng
- Department of Ultrasonography, Women and Children Health Institute Futian Shenzhen, Shenzhen 518026, Guangdong Province, China
| | - Xiao-Yan Cao
- Department of Ultrasonography, Women and Children Health Institute Futian Shenzhen, Shenzhen 518026, Guangdong Province, China
| | - Xiao-Qian Wang
- Department of Ultrasonography, Women and Children Health Institute Futian Shenzhen, Shenzhen 518026, Guangdong Province, China
| | - Heng-Li Lin
- Department of Ultrasonography, Women and Children Health Institute Futian Shenzhen, Shenzhen 518026, Guangdong Province, China
| | - Jin-Chuan Fang
- Department of Ultrasonography, Women and Children Health Institute Futian Shenzhen, Shenzhen 518026, Guangdong Province, China
| | - Lin Wang
- Department of Ultrasonography, Women and Children Health Institute Futian Shenzhen, Shenzhen 518026, Guangdong Province, China
| |
Collapse
|
6
|
Guo T, Zhang XJ, Cheng XL, Li H, Nie ZH, Zhang JL, Zhang LT. [Five cases of occupational contact dermatitis caused by paint]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2021; 38:931. [PMID: 33406559 DOI: 10.3760/cma.j.cn121094-20200323-00144] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
|
7
|
Ke ZC, Cheng XL, Lin CY, Feng L, Jia XB. [Characterization of oil/water partition coefficient of chishao terpene glucoside components based on contribution rate of representative components for myocardial ischemia]. Zhongguo Zhong Yao Za Zhi 2020; 45:3852-3856. [PMID: 32893580 DOI: 10.19540/j.cnki.cjcmm.20200622.302] [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: 11/18/2022]
Abstract
The components of traditional Chinese medicine(TCMCs) are the basic unit of raw materials for Chinese medicines, and their physical and chemical properties directly affect the choice of dosage forms and the optimization of prescriptions. However, most of TCMCs are multi-component complex systems, and the characterization of their overall properties is still in the exploration stage. On the basis of biological activity, the representative components are determined, and then the individual characteristics are fitted with the weight coefficient of efficacy contribution rate, which may provide reference for characterizing the overall properties of TCMCs. In this study, with the pharmacological effects of isoproterenol(ISO)-induced myocardial ischemia in rats as the indicators, the pharmacodynamic contribution rates of three representative components of chishao terpene glucoside components(CSTGCs) were evaluated by the normalization weighting method. The contribution rates of paeoniflorin, paeoniflorin and benzoylpaeoniflorin were 54.87%, 32.46% and 12.67%, respectively. The oil-water partition coefficients of paeoniflorin, albiflorin, benzoylpaeoniflorin in water and buffer solutions with different pH values were measured, and the oil-water partition coefficients of CSTGCs were characterized by the weight of their pharmacodynamics contribution rate. The results showed that the apparent oil-water partition coefficient(log P) of CSTGCs in the phosphate buffer system such as n-octanol-water(pH 2.0, 2.5, 5.0, 5.8, 6.8) were 0.18-0.22, indicating that CSTGCs have common absorption and low permeability, providing basis for the preparation of CSTGCs.
Collapse
Affiliation(s)
- Zhong-Cheng Ke
- College of Chemistry and Chemical Engineering, Huangshan University Huangshan 245041, China College of Pharmacy, Nanjing University of Chinese Medicine Nanjing 210028, China
| | - Xiao-Ling Cheng
- Health Supervision Institute,Tunxi District Health Bureau Huangshan 245000, China
| | - Chuan-Yan Lin
- College of Pharmacy, Nanjing University of Chinese Medicine Nanjing 210028, China College of Traditional Chinese Medicine, China Pharmaceutical University Nanjing 211198, China
| | - Liang Feng
- College of Traditional Chinese Medicine, China Pharmaceutical University Nanjing 211198, China
| | - Xiao-Bin Jia
- College of Traditional Chinese Medicine, China Pharmaceutical University Nanjing 211198, China
| |
Collapse
|
8
|
Liu BY, Wu WC, Zeng QX, Liu ZH, Niu LL, Tian Y, Cheng XL, Luo Q, Zhao ZH, Huang L, Wang H, He JG, Xiong CM. Two-dimensional speckle tracking echocardiography detected interventricular dyssynchrony predicts exercise capacity and disease severity in pre-capillary pulmonary hypertension. Ann Transl Med 2020; 8:456. [PMID: 32395500 PMCID: PMC7210168 DOI: 10.21037/atm.2020.03.146] [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] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Background Right ventricular (RV) intraventricular mechanical dyssynchrony detected by two-dimensional speckle tracking echocardiography (2D-STE) has been reported to be correlated with a decrease in RV contractile efficiency in pulmonary hypertension (PH) patients, while little attention has been paid to biventricular dysfunction. Therefore, we aimed to evaluate the predictive value of 2D-STE detected interventricular dyssynchrony for exercise capacity and disease severity in patients with pre-capillary PH (PcPH). Methods Conventional transthoracic echocardiography, 2D-STE and cardiopulmonary exercise tests (CPETs) were performed in all participants. Intra- and interventricular dyssynchrony were calculated as the standard deviation (SD) of the time intervals corrected for heart rate between QRS onset and peak longitudinal strain. Multivariate linear regression analyses were performed to identify independent predictors of peak oxygen consumption (PVO2) during the CPET. Multivariable logistical regression modeling was used to analyze the associations between interventricular dyssynchrony and risk assessment. Results Sixty-six PcPH patients were consecutively recruited (19 male and 47 female, average 35 years old). WHO functional class, N-terminal pro-brain natriuretic peptide (BNP) and body mass index were included as independent predictors in the first multivariate regression analysis of clinical data without echocardiographic parameters (Model-1, r2=0.423, P<0.001). We subsequently added conventional echocardiographic parameters and 2D-STE parameters to the clinical data, RV fractional area change (Model-2, r2=0.417, P<0.001), RV global longitudinal strain (Model-3, r2=0.454, P=0.001), RV intraventricular dyssynchrony (Model-4: r2=0.474, P<0.001) and interventricular dyssynchrony (Model-5, r2=0.483, P<0.001) were identified as independent predictors of PVO2. Interventricular dyssynchrony, calculated as the SD of the time intervals of nine segments, was independently associated with risk assessment (odd ratio 1.027, 95% CI: 1.003–1.052, P=0.03). The area under the receiver-operating characteristic curve (AUC) was 0.73 (P<0.001). Conclusions Interventricular dyssynchrony detected by 2D-STE contributed to a better evaluation of exercise capacity and disease severity in PcPH patients.
Collapse
Affiliation(s)
- Bing-Yang Liu
- Department of Cardiology, Pulmonary Vascular Disease Center, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China
| | - Wei-Chun Wu
- Department of Echocardiography, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China
| | - Qi-Xian Zeng
- Department of Cardiology, Pulmonary Vascular Disease Center, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China
| | - Zhi-Hong Liu
- Department of Cardiology, Pulmonary Vascular Disease Center, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China
| | - Li-Li Niu
- Department of Echocardiography, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China
| | - Yue Tian
- Department of Echocardiography, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China
| | - Xiao-Ling Cheng
- Department of Cardiology, Pulmonary Vascular Disease Center, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China
| | - Qin Luo
- Department of Cardiology, Pulmonary Vascular Disease Center, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China
| | - Zhi-Hui Zhao
- Department of Cardiology, Pulmonary Vascular Disease Center, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China
| | - Li Huang
- Department of Cardiology, Pulmonary Vascular Disease Center, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China
| | - Hao Wang
- Department of Echocardiography, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China
| | - Jian-Guo He
- Department of Cardiology, Pulmonary Vascular Disease Center, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China
| | - Chang-Ming Xiong
- Department of Cardiology, Pulmonary Vascular Disease Center, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China
| |
Collapse
|
9
|
Huang ZS, Wei ZS, Xiao XL, Li BL, Ming S, Cheng XL, Jiao HY. Bioconversion of Hg 0 into HA-Hg for simultaneous removal of Hg 0 and NO in a denitrifying membrane biofilm reactor. Chemosphere 2020; 244:125544. [PMID: 32050341 DOI: 10.1016/j.chemosphere.2019.125544] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2019] [Revised: 12/01/2019] [Accepted: 12/03/2019] [Indexed: 06/10/2023]
Abstract
Bacterial mercury oxidation coupled to denitrification offers great potential for simultaneous removal of elemental mercury (Hg0) and nitric oxide (NO) in a denitrifying membrane biofilm reactor (MBfR). Four potentially contributory mechanisms tested separately, namely, membrane gas separation, medium absorption, biosorption and biotransformation, which contributed 4.9%/7.2%, 8.1%/8.9%, 38.8%/9.5% and 48.2%/84.9% of overall Hg0/NO removal in MBfR. Herein, Hg0 bio-oxidation, oxidative Hg0 biosorption and denitrification played leading roles in simultaneous removal of Hg0 and NO. Living microbes performed simultaneous Hg0 bio-oxidation and denitrification, in which Hg0 as electron donor was biologically oxidized to oxidized mercury (Hg2+), while NO as the terminal electron acceptor was denitrified to N2. The Hg2+ further complexed with humic acids in extracellular polymeric substances via functional groups (-SH, -OH, -NH- and -COO-) and formed humic acids bound mercury (HA-Hg). Non-living microbial matrix performed oxidative Hg0 biosorption, in which Hg0 may be physically adsorbed by cellular matrix, then non-metabolically oxidized to Hg2+ via oxidative complexation with -SH in humic acids and finally cleavage of S-H bond and surface charge transfer led to formation of HA-Hg. Therefore, bioconversion of Hg0 to HA-Hg by Hg0 bio-oxidation and oxidative Hg0 biosorption coupled with NO denitrification to N2 dynamically cooperated to accomplish simultaneous removal of Hg0 and NO in MBfR.
Collapse
Affiliation(s)
- Z S Huang
- School of Environmental Science and Engineering, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, Guangzhou, 510275, China
| | - Z S Wei
- School of Environmental Science and Engineering, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, Guangzhou, 510275, China.
| | - X L Xiao
- School of Environmental Science and Engineering, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, Guangzhou, 510275, China
| | - B L Li
- School of Environmental Science and Engineering, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, Guangzhou, 510275, China
| | - S Ming
- School of Environmental Science and Engineering, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, Guangzhou, 510275, China
| | - X L Cheng
- School of Environmental Science and Engineering, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, Guangzhou, 510275, China
| | - H Y Jiao
- School of Environmental Science and Engineering, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, Guangzhou, 510275, China
| |
Collapse
|
10
|
Wei ZS, He YM, Huang ZS, Xiao XL, Li BL, Ming S, Cheng XL. Photocatalytic membrane combined with biodegradation for toluene oxidation. Ecotoxicol Environ Saf 2019; 184:109618. [PMID: 31487569 DOI: 10.1016/j.ecoenv.2019.109618] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [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: 04/21/2019] [Revised: 08/25/2019] [Accepted: 08/27/2019] [Indexed: 06/10/2023]
Abstract
Photocatalytic membrane coupled to biodegradation offers potential for degrading volatile organic compounds (VOCs) in photocatalytic membrane biofilm reactor. An intimately coupled photocatalysis and biodegradation reactor was operated in continuous operation for 500 days to treat simulated waste gas containing toluene. Toluene removal efficiency obtained 99%, with the elimination capacity of 550 g m-3·h-1. Membrane photocatalysis coupled to biodegradation was created to improve toluene removal from 11 to 20%. The dominant genera were Lysinibacillus, Hydrogenophaga, Pseudomonas at 30 d, Rudaea, Dongia, Litorilinea at 230 d xyl, Tod, Tcb, Bed, Tmo, Tbu, Tou, Dmp, Cat were functional genes of toluene metabolism, as shown by16S rDNA and metagenomic sequencing. Photocatalysis destroyed part of the toluene into biodegradable intermediates that were immediately mineralized by microorganisms in biofilm, some toluene was directly degraded by toluene degrading bacterial community into carbon dioxide and water. The novel hybrid photocatalytic membrane biofilm reactor is a cost-effective and robust alternative to VOCs treatment.
Collapse
Affiliation(s)
- Z S Wei
- School of Environmental Science and Engineering, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, Guangzhou 510275, China.
| | - Y M He
- School of Environmental Science and Engineering, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, Guangzhou 510275, China
| | - Z S Huang
- School of Environmental Science and Engineering, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, Guangzhou 510275, China
| | - X L Xiao
- School of Environmental Science and Engineering, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, Guangzhou 510275, China
| | - B L Li
- School of Environmental Science and Engineering, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, Guangzhou 510275, China
| | - S Ming
- School of Environmental Science and Engineering, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, Guangzhou 510275, China
| | - X L Cheng
- School of Environmental Science and Engineering, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, Guangzhou 510275, China
| |
Collapse
|
11
|
Cheng XL, Liu BY, Wu WC, Li W, Huang L, Yang T, Liu ZH, Wang H, He JG, Xiong CM. Impact of right ventricular dyssynchrony on prognosis of patients with idiopathic pulmonary arterial hypertension. Pulm Circ 2019; 9:2045894019883609. [PMID: 31692686 PMCID: PMC6811764 DOI: 10.1177/2045894019883609] [Citation(s) in RCA: 5] [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] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/14/2019] [Accepted: 09/29/2019] [Indexed: 02/05/2023] Open
Abstract
Idiopathic pulmonary arterial hypertension is a progressive disease with high mortality with an increasing burden of right ventricular. Right ventricular dyssynchrony was observed in idiopathic pulmonary arterial hypertension, but the association with mortality is unclear. This study aimed to investigate the impact of right ventricular dyssynchrony on the survival of idiopathic pulmonary arterial hypertension. A total of 116 patients with idiopathic pulmonary arterial hypertension were enrolled in this study. All these patients underwent comprehensive clinical evaluation. Right ventricular dyssynchrony was assessed by two-dimensional speckle-tracking echocardiography. The time to peak strain (Tpeak) of right ventricular segments were obtained. Right ventricular dyssynchrony was quantified by the standard deviation of the heart rate-corrected Tpeak of right ventricular four segments. All patients were followed up and the primary endpoint was all cause of death. Results found patients with significant right ventricular dyssynchrony present with advanced World Health Organization functional class, worse hemodynamic status and right ventricular function. Right ventricular dyssynchrony was an independent predictive factor for the survival of idiopathic pulmonary arterial hypertension. Kaplan–Meier survival curves showed patients with right ventricular dyssynchrony had worse prognosis. In conclusion, right ventricular dyssynchrony analyzed by speckle-tracking echocardiography provided added value to hemodynamic and echocardiographic parameters in evaluating the survival of patients with idiopathic pulmonary arterial hypertension.
Collapse
Affiliation(s)
- Xiao-Ling Cheng
- Department of Internal Medicine (General Medicine), Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Bing-Yang Liu
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Wei-Chun Wu
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Wen Li
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Li Huang
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Tao Yang
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Zhi-Hong Liu
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Hao Wang
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Jian-Guo He
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Chang-Ming Xiong
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| |
Collapse
|
12
|
Guo T, Cheng XL, Li H, Li JY, Qiao SF, Nie ZH, Zhang JL, Zhang LT. [A case of posoriasis aggraration and acute kidney injury caused mercury preparation]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2019; 37:228-229. [PMID: 31189250 DOI: 10.3760/cma.j.issn.1001-9391.2019.03.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
|
13
|
Liu BY, Wu WC, Zeng QX, Liu ZH, Niu LL, Tian Y, Cheng XL, Luo Q, Zhao ZH, Huang L, Wang H, He JG, Xiong CM. Two-dimensional speckle tracking echocardiography assessed right ventricular function and exercise capacity in pre-capillary pulmonary hypertension. Int J Cardiovasc Imaging 2019; 35:1499-1508. [PMID: 31037475 DOI: 10.1007/s10554-019-01605-w] [Citation(s) in RCA: 7] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/28/2019] [Accepted: 04/16/2019] [Indexed: 01/05/2023]
Abstract
Resting two-dimensional speckle tracking echocardiography (2D-STE) identified right ventricular (RV) systolic function were reported to predict exercise capacity in pulmonary hypertension (PH) patients, but little attention had been payed to 2D-STE detected RV diastolic function. Therefore, we aim to elucidate and compare the relations between 2D-STE identified RV diastolic/systolic functions and peak oxygen consumption (PVO2) determined by cardiopulmonary exercise testing (CPET) in pre-capillary PH. 2D-STE was performed in 66 pre-capillary PH patients and 28 healthy controls. Linear correlation and multivariate regression analyses were performed to evaluate and compare the relations between RV 2D-STE parameters and PVO2. Receiver operating characteristic curves were used to compare the predictive value of 2D-STE parameters in predicting the cut-off-PVO2 < 11 ml/min/kg. There were significant differences of all the 2D-STE parameters between PH patients and healthy controls. In patients, RV-peak global longitudinal strain (GLS, rs = - 0.498, P < 0.001), RV- peak systolic strain rate (GSRs, rs = - 0.537, P < 0.001) and RV- peak early diastolic strain rate (GSRe, rs = 0.527, P < 0.001) significantly correlated with PVO2, but no significant correlation was observed between RV- peak late diastolic strain rate (GSRa, rs = 0.208, P = 0.093) and PVO2. The first multivariate regression analysis of clinical data without echocardiographic parameters identified WHO functional class, NT-proBNP and BMI as independent predictors of PVO2 (Model-1, adjusted r2 = 0.421, P < 0.001); Then we added conventional echocardiographic parameters and 2D-STE parameters to the clinical data, identified S,(Model-2,adjusted r2 = 0.502, P < 0.001), RV-GLS (Model-3, adjusted r2 = 0.491, P < 0.001), RV-GSRe (Model-4, adjusted r2 = 0.500, P < 0.001) and RV-GSRs (Model-5, adjusted r2 = 0.519, P < 0.001) as independent predictors of PVO2, respectively. The predictive power was increased, and Model-5 including RV-GSRs showed the highest predictive capability. ROC curves found RV-GSRs expressed the strongest predictive value (AUC = 0.88, P < 0.001), and RV-GSRs > - 0.65/s had a 88.2% sensibility and 82.2% specificity to predict PVO2 < 11 ml/min/kg. 2D-STE assessed RV function improves the prediction of exercise capacity represented by PVO2 in pre-capillary PH.
Collapse
Affiliation(s)
- Bing-Yang Liu
- Department of Cardiology, Pulmonary Vascular Disease Center, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, No. 167 North Lishi Road, Xicheng District, Beijing, 100037, People's Republic of China
| | - Wei-Chun Wu
- Department of Echocardiography, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100037, People's Republic of China
| | - Qi-Xian Zeng
- Department of Cardiology, Pulmonary Vascular Disease Center, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, No. 167 North Lishi Road, Xicheng District, Beijing, 100037, People's Republic of China
| | - Zhi-Hong Liu
- Department of Cardiology, Pulmonary Vascular Disease Center, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, No. 167 North Lishi Road, Xicheng District, Beijing, 100037, People's Republic of China
| | - Li-Li Niu
- Department of Echocardiography, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100037, People's Republic of China
| | - Yue Tian
- Department of Echocardiography, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100037, People's Republic of China
| | - Xiao-Ling Cheng
- Department of Cardiology, Pulmonary Vascular Disease Center, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, No. 167 North Lishi Road, Xicheng District, Beijing, 100037, People's Republic of China
| | - Qin Luo
- Department of Cardiology, Pulmonary Vascular Disease Center, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, No. 167 North Lishi Road, Xicheng District, Beijing, 100037, People's Republic of China
| | - Zhi-Hui Zhao
- Department of Cardiology, Pulmonary Vascular Disease Center, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, No. 167 North Lishi Road, Xicheng District, Beijing, 100037, People's Republic of China
| | - Li Huang
- Department of Cardiology, Pulmonary Vascular Disease Center, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, No. 167 North Lishi Road, Xicheng District, Beijing, 100037, People's Republic of China
| | - Hao Wang
- Department of Echocardiography, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100037, People's Republic of China
| | - Jian-Guo He
- Department of Cardiology, Pulmonary Vascular Disease Center, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, No. 167 North Lishi Road, Xicheng District, Beijing, 100037, People's Republic of China
| | - Chang-Ming Xiong
- Department of Cardiology, Pulmonary Vascular Disease Center, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, No. 167 North Lishi Road, Xicheng District, Beijing, 100037, People's Republic of China.
| |
Collapse
|
14
|
Nan ZA, Xiao Y, Liu XY, Wang T, Cheng XL, Yang Y, Lei Z, Wang QM. Monitoring the growth of Ag–S clusters through crystallization of intermediate clusters. Chem Commun (Camb) 2019; 55:6771-6774. [DOI: 10.1039/c9cc03533h] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
We report a series of Ag–S nanoscale clusters in an attempt to understand the growth process of Ag2S clusters.
Collapse
Affiliation(s)
- Zi-Ang Nan
- Collaborative Innovation Center of Chemistry for Energy Materials (iChEM) and State Key Lab of Physical Chemistry of Solid Surfaces
- Department of Chemistry
- College of Chemistry and Chemical Engineering
- Xiamen University
- China
| | - Ying Xiao
- Collaborative Innovation Center of Chemistry for Energy Materials (iChEM) and State Key Lab of Physical Chemistry of Solid Surfaces
- Department of Chemistry
- College of Chemistry and Chemical Engineering
- Xiamen University
- China
| | - Xi-Yan Liu
- Collaborative Innovation Center of Chemistry for Energy Materials (iChEM) and State Key Lab of Physical Chemistry of Solid Surfaces
- Department of Chemistry
- College of Chemistry and Chemical Engineering
- Xiamen University
- China
| | - Tan Wang
- Collaborative Innovation Center of Chemistry for Energy Materials (iChEM) and State Key Lab of Physical Chemistry of Solid Surfaces
- Department of Chemistry
- College of Chemistry and Chemical Engineering
- Xiamen University
- China
| | - Xiao-Ling Cheng
- Collaborative Innovation Center of Chemistry for Energy Materials (iChEM) and State Key Lab of Physical Chemistry of Solid Surfaces
- Department of Chemistry
- College of Chemistry and Chemical Engineering
- Xiamen University
- China
| | - Yang Yang
- Collaborative Innovation Center of Chemistry for Energy Materials (iChEM) and State Key Lab of Physical Chemistry of Solid Surfaces
- Department of Chemistry
- College of Chemistry and Chemical Engineering
- Xiamen University
- China
| | - Zhen Lei
- Collaborative Innovation Center of Chemistry for Energy Materials (iChEM) and State Key Lab of Physical Chemistry of Solid Surfaces
- Department of Chemistry
- College of Chemistry and Chemical Engineering
- Xiamen University
- China
| | - Quan-Ming Wang
- Collaborative Innovation Center of Chemistry for Energy Materials (iChEM) and State Key Lab of Physical Chemistry of Solid Surfaces
- Department of Chemistry
- College of Chemistry and Chemical Engineering
- Xiamen University
- China
| |
Collapse
|
15
|
Chen ZP, Li PJ, Li G, Tang L, Zhen YZ, Wu XY, Cheng XL, Luke KH, Blanchette VS, Poon MC, Ding QL, Wu RH. Pharmacokinetic Studies of Factor VIII in Chinese Boys with Severe Hemophilia A: A Single-Center Study. Chin Med J (Engl) 2018; 131:1780-1785. [PMID: 29848837 PMCID: PMC6071451 DOI: 10.4103/0366-6999.233604] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Background: Although much attention has been paid to the pharmacokinetics (PKs) of different factor VIII (FVIII) concentrates in persons with hemophilia A (HA), limited information is available in young boys with severe HA. In this study, we aimed to assess the PK parameters of FVIII products in boys with severe HA in China. Methods: A total of 36 boys (plasma-derived [pd]-FVIII, n = 15; recombinant [r] FVIII, n = 21) were enrolled between January 2015 and May 2016 in Beijing Children's Hospital. PK characteristics of FVIII products were studied according to a reduced 4-sampling time point design (1 h, 9 h, 24 h, and 48 h postinfusion). Results: The mean FVIII half-life (t1/2) was 10.99 ± 3.45 h (range 5.52–20.02 h), the mean in vivo recovery (IVR) was 2.01 ± 0.42 IU/dl per IU/kg (range 1.24–3.02 IU/dl per IU/kg) and mean clearance (CL) of FVIII is 4.34 ± 1.58 ml·kg−1·h−1 (range 2.29–7.90 ml·kg−1·h−1). We also analyzed the influence of several parameters that potentially modulate FVIII PK. The age was closely associated with FVIII half-life (R2= 0.32, P < 0.01). The t1/2 of FVIII increased by 0.59 h per year. Besides age, von Willebrand factor antigen (VWF:Ag) also was associated with FVIII half-life (R2= 0.52, P < 0.01). Patients with blood Group O had a shorter FVIII half-life than patients with non-O blood group (9.40 ± 0.68 h vs. 12.3 ± 0.79 h, t = 2.70, P = 0.01). The FVIII IVR correlated with age (R2= 0.21, P < 0.01) and VWF:Ag level (R2= 0.28, P < 0.01). CL rates were faster in young patients and in those with low-VWF:Ag levels. CL rates of FVIII are higher in blood Group O versus non-blood Group O persons (5.02 ± 0.38 vs. 4.00 ± 0.32 ml·kg−1·h−1, t = 2.53, P = 0.02). Conclusions: Chinese boys with severe HA have similar PK values to other ethnic groups and large differences in FVIII PK between individual patients. Age, blood group, and VWF:Ag levels are important determining factors for FVIII CL.
Collapse
Affiliation(s)
- Zhen-Ping Chen
- Hematology Oncology Center, Beijing Children's Hospital, Capital Medical University, Beijing Key Laboratory of Pediatric Hematology Oncology, National Key Discipline of Pediatrics, Ministry of Education, Beijing 100045, China
| | - Pei-Jing Li
- Hematology Oncology Center, Beijing Children's Hospital, Capital Medical University, Beijing Key Laboratory of Pediatric Hematology Oncology, National Key Discipline of Pediatrics, Ministry of Education, Beijing 100045, China
| | - Gang Li
- Hematology Oncology Center, Beijing Children's Hospital, Capital Medical University, Beijing Key Laboratory of Pediatric Hematology Oncology, National Key Discipline of Pediatrics, Ministry of Education, Beijing 100045, China
| | - Ling Tang
- Hematology Oncology Center, Beijing Children's Hospital, Capital Medical University, Beijing Key Laboratory of Pediatric Hematology Oncology, National Key Discipline of Pediatrics, Ministry of Education, Beijing 100045, China
| | - Ying-Zi Zhen
- Hematology Oncology Center, Beijing Children's Hospital, Capital Medical University, Beijing Key Laboratory of Pediatric Hematology Oncology, National Key Discipline of Pediatrics, Ministry of Education, Beijing 100045, China
| | - Xin-Yi Wu
- Hematology Oncology Center, Beijing Children's Hospital, Capital Medical University, Beijing Key Laboratory of Pediatric Hematology Oncology, National Key Discipline of Pediatrics, Ministry of Education, Beijing 100045, China
| | - Xiao-Ling Cheng
- Hematology Oncology Center, Beijing Children's Hospital, Capital Medical University, Beijing Key Laboratory of Pediatric Hematology Oncology, National Key Discipline of Pediatrics, Ministry of Education, Beijing 100045, China
| | - Koon Hung Luke
- Department of Pediatrics and Laboratory Medicine, and Hemophilia Clinic, Children's Hospital of Eastern Ontario and University of Ottawa, Ottawa, Ontario, K1H 8L1, Canada
| | - Victor S Blanchette
- Department of Pediatrics and Child Health Evaluative Sciences, Division of Hematology/Oncology, Research Institute, Hospital for Sick Children, University of Toronto, Toronto, Ontario, M5G 1X8, Canada
| | - Man-Chiu Poon
- Department of Medicine, Pediatrics and Oncology, and Southern Alberta Rare Blood and Bleeding Disorders Comprehensive Care Program, University of Calgary, Foothills Hospital and Calgary Health Region, Calgary, Alberta, T2N2T9, Canada
| | - Qiu-Lan Ding
- Department of Laboratory Medicine, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200025, China
| | - Run-Hui Wu
- Hematology Oncology Center, Beijing Children's Hospital, Capital Medical University, Beijing Key Laboratory of Pediatric Hematology Oncology, National Key Discipline of Pediatrics, Ministry of Education, Beijing 100045, China
| |
Collapse
|
16
|
Qiu L, Yuan HM, Liang JM, Cheng XL, Wang P, Du YF, Fu Q. Clemochinenosides C and D, two new macrocyclic glucosides from Clematis chinensis. J Asian Nat Prod Res 2018; 20:1038-1044. [PMID: 29058458 DOI: 10.1080/10286020.2017.1387780] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2017] [Accepted: 09/29/2017] [Indexed: 06/07/2023]
Abstract
The EtOH extract of the roots and rhizomes of Clematis chinensis afforded two new macrocyclic glucosides clemochinenosides C (1) and D (2). Their structures were elucidated on the basis of spectroscopic means and hydrolysis products. These compounds were evaluated for inhibitory activity against lipopolysaccharides-induced TNF-α production in RAW 246.7 macrophages. Compounds 1 and 2 showed moderate inhibitory activity with IC50 values of 12.9 ± 2.3 and 18.4 ± 2.7 μM, respectively. In addition, a proliferation study was used to evaluate the anti-angiogenic effects of these compounds in vitro (VEGF-induced human umbilical vein endothelial cell proliferation). Compounds 1 and 2 displayed weak inhibitory effects with inhibition rates of 26.3 ± 1.8 and 19.2 ± 2.6% at 50 μM, respectively.
Collapse
Affiliation(s)
- Lu Qiu
- a College of Pharmacy and Bioengineering , Chengdu University , Chengdu 610106 , China
| | - Hai-Mei Yuan
- a College of Pharmacy and Bioengineering , Chengdu University , Chengdu 610106 , China
| | - Jun-Ming Liang
- a College of Pharmacy and Bioengineering , Chengdu University , Chengdu 610106 , China
| | - Xiao-Ling Cheng
- a College of Pharmacy and Bioengineering , Chengdu University , Chengdu 610106 , China
| | - Ping Wang
- a College of Pharmacy and Bioengineering , Chengdu University , Chengdu 610106 , China
| | - Yu-Feng Du
- a College of Pharmacy and Bioengineering , Chengdu University , Chengdu 610106 , China
| | - Qiang Fu
- a College of Pharmacy and Bioengineering , Chengdu University , Chengdu 610106 , China
| |
Collapse
|
17
|
Kuang MX, Kuang SJ, Xiao QJ, Kuang NZ, Zhao H, Cheng XL. Comparing square root method of measuring the cardiac output by means of aortic impedance change component to Kubicek's method. Med Phys 2018; 45:4297-4305. [PMID: 29963701 DOI: 10.1002/mp.13076] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2018] [Revised: 06/24/2018] [Accepted: 06/27/2018] [Indexed: 02/28/2024] Open
Abstract
PURPOSE The aim of this study is to explore a calculated method used to measure the cardiac output using the aortic impedance change component of reconstructed impedance cardiography. METHODS Routine impedance cardiography was measured using Kubicek's method with four ring electrodes. The thoracic mixed impedance changes were measured by six leads, which consisted of 15 electrodes. The aortic impedance change component was separated from six thoracic mixed impedance changes through waveform reconstruction. The square root formula used to calculate the cardiac output was deduced based on the thoracic impedance change equation and the aortic volume change hypothesis during the systole period. The cardiac outputs of 180 normal adults and 72 patients with cardiac insufficiency who could still walk freely were contrastively computed with both Kubicek's formula and the square root formula. RESULTS For 180 normal adults, the cardiac index (CI) computed with the square root formula was 3.60 ± 0.45 L/min/m2 , with normal values ranging from 2.7 to 4.5 L/min/m2 . A total of 163 cases (90.6%) had a CI in the standard range (2.7-4.3 L/min/m2 ) adopted in clinical applications. The CI computed with Kubicek's formula was 3.61 ± 0.86 L/min/m2 , with normal values ranging from 1.9 to 5.3 L/min/m2 , and only 115 cases (63.9%) had a CI in the above standard range. Among the 72 patients with cardiac insufficiency, 20 (27.8%) patients had a CI < 2.0 L/min/m2 with Kubicek's formula. Of these 20 cases, 9 cases had a CI < 1.5 L/min/m2 , and 4 cases had a CI < 1.1 L/min/m2 . In contrast, none of the 72 patients had a CI < 2.0 L/min/m2 with the square root formula. In addition, the influence of the chest circumference on the CI was lower for the square root formula than for Kubicek's formula. CONCLUSIONS The CI calculated with the square root formula had a better normal value range, was more accurate for the patients with cardiac insufficiency, and was less affected by the chest circumference than the CI calculated with Kubicek's formula.
Collapse
Affiliation(s)
- Ming-Xing Kuang
- Department of Electronic Engineering, Nanchang Institute of Technology, Nanchang, Jiangxi, 330044, China
| | - Shi-Jiang Kuang
- Department of Electronic Engineering, Nanchang Institute of Technology, Nanchang, Jiangxi, 330044, China
| | - Qiu-Jin Xiao
- Department of Special Diagnosis, The 94th Hospital of People's Liberation Army of China, Nanchang, Jiangxi, 330002, China
| | - Nan-Zhen Kuang
- Department of Basic Medicine, Nanchang University, Nanchang, Jiangxi, 330006, China
| | - Hui Zhao
- Department of Electronic Engineering, Nanchang Institute of Technology, Nanchang, Jiangxi, 330044, China
| | - Xiao-Ling Cheng
- Department of Electronic Engineering, Nanchang Institute of Technology, Nanchang, Jiangxi, 330044, China
| |
Collapse
|
18
|
Jin L, Cheng XL, Qin YZ, Su B. [Analysis of the influential factors of late diagnosis among newly identified HIV/AIDS cases in Anhui Province, 2011-2015]. Zhonghua Yu Fang Yi Xue Za Zhi 2018; 52:415-418. [PMID: 29614610 DOI: 10.3760/cma.j.issn.0253-9624.2018.04.015] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To analyze the base situation and influential factors of late diagnosis among newly identified HIV/AIDS cases in Anhui Province from 2011 to 2015. Methods: Database information of the newly identified HIV/AIDS cases in Anhui Province from 2011 to 2015 were downloaded from the National HIV/AIDS Comprehensive Information System of China's disease prevention and control information system. To analyze the data including basic information, sample source, route of HIV transmission, population mobility, venereal disease, death and first CD4 count; and the number of 7 073 cases were classified according to late diagnosis and non-late diagnosis criteria. The Chi-square test and logistic regression analysis were used to analyze the influential factors of HIV late diagnosis. Results: A total of 7 073 newly identified HIV/AIDS cases were analyzed, and the mean age was (38.5±15.0) years. The proportion of late diagnosis in all counted cases was 41.7% (2 949/7 073); from 2011 to 2015, the proportions of late diagnosis were 59.7% (485/812), 46.5% (531/1 141), 42.7% (587/1 376), 36.1% (609/1 686), and 35.8% (737/2 058), respectively. Compared with the 0 to 19 years group, the 40 to 59 years group and over 60 years old group have higher risk of late diagnosis (OR=2.68, 95%CI: 1.94-3.71; OR=2.18, 95%CI: 1.53-3.10, respectively). Compared with the high education group, the illiterate and primary school education group have higher risk of late diagnosis (OR=1.74, 95%CI: 1.36-2.22; OR=1.64, 95%CI: 1.34-2.01, respectively). Compared with other sample sources, medical institutions have higher risk of late diagnosis (OR=2.64, 95%CI: 2.28-3.05). Compared with migrant population, the resident population have higher risk of late diagnosis (OR=1.80, 95%CI: 1.53-2.11). Conclusion: The proportion of late diagnosis among newly identified HIV/AIDS cases in Anhui province was relatively high from 2011 to 2015. The main risk factors of late diagnosis included cases reported by medical institutions, resident population, over 40 years old age group and low education level.
Collapse
Affiliation(s)
- L Jin
- AIDS Department of Anhui Provincial Center for Disease Control and Prevention, Hefei 230601, China
| | | | | | | |
Collapse
|
19
|
Zhang Y, Hu M, Liu L, Cheng XL, Cai J, Zhou J, Wang T. Anticancer effects of Rosmarinic acid in OVCAR-3 ovarian cancer cells are mediated via induction of apoptosis, suppression of cell migration and modulation of lncRNA MALAT-1 expression. J BUON 2018; 23:763-768. [PMID: 30003749] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
PURPOSE The main objective of the present research work was to study the anticancer properties of rosmarinic acid in OVCAR-3 human ovarian cancer cells and also to evaluate its effects on apoptosis induction, cancer cell migration and modulation of lncRNA MALAT-1 expression. METHODS MTT assay was used to study the effects of the agent on OVCAR-3 cell viability, while inverted phase contrast microscopy and fluorescence microscopy were used to study the effects on cell morphology. Scanning electron microscopy (SEM) was used to study the effects of rosmarinic acid on cell surface morphology in OVCAR-3 cells. In vitro wound healing assay was used to study the effects on cell migration. RESULTS Rosmarinic acid induced time-dependent and concentration- dependent cytotoxic effects in these malignant cells. The IC50 values at 48 and 72 hrs time intervals were found to be 34.6 and 25.1 μM respectively. Rosmarinic acidtreated cells revealed significant changes in cell morphology including cellular shrinkage and cell rounding. The cells also lost attachment with the plate surface. Doses of 10, 40 and 160 μM rosmarinic acid led to a substantial increase in bright blue fluorescence which is a signpost of chromatin condensation and DNA fragmentation. Rosmarinic acid treatment also led to a significant suppression of cell migration corresponding to 46.5% and 86.2 % cell migration inhibition at 40 and 160 μM doses, respectively. CONCLUSION In conclusion, the current study showed that rosmarinic acid induced potent anticancer effects in OCVAR- 3 cancer cells by inducing apoptosis, inhibiting cell migration and modulating lncRNA Malat-1 expression.
Collapse
Affiliation(s)
- Yan Zhang
- Department of Obstetrics and Gynaecology, Renmin Hospital of Wuhan University, Wuhan 430060, China
| | | | | | | | | | | | | |
Collapse
|
20
|
Li W, Xiong CM, Gu Q, Wang XT, Cheng XL, Huang L, Yang T, Luo Q, Zhao ZH, Ni XH, Liu ZH, He JG. The clinical characteristics and long-term prognosis of pulmonary arterial hypertension associated with hereditary hemorrhagic telangiectasia. Pulm Circ 2018; 8:2045894018759918. [PMID: 29480092 PMCID: PMC5888830 DOI: 10.1177/2045894018759918] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [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] [Indexed: 12/22/2022] Open
Abstract
Pulmonary arterial hypertension (PAH) is a severe complication of hereditary hemorrhagic telangiectasia (HHT); however, little is known about its clinical characteristics and prognosis. Nine newly diagnosed HHT-PAH patients were prospectively recruited between October 2007 and January 2016 and were followed up every half-year. Eighteen idiopathic pulmonary arterial hypertension (IPAH) patients, matched with HHT-PAH patients on mean pulmonary arterial pressure, pulmonary capillary wedge pressure, pulmonary vascular resistance, cardiac index, and World Health Organization (WHO) functional class (FC), were recruited. The clinical characteristics of HHT-PAH patients were described and the prognosis of these two cohorts were compared. Of HHT-PAH patients, 55.56% were WHO FC III. Kaplan–Meier survival analysis showed one- and three-year survival rates of HHT-PAH patients were 77.8% and 53.3% respectively, which were worse than matched IPAH patients (log rank: P = 0.047). HHT-PAH patients had higher red cell distribution width (14.88 ± 2.93% versus 13.19 ± 0.83%, P = 0.031), larger right ventricular anteroposterior diameter (34.67 ± 6.67 mm versus 28.56 ± 6.35 mm, P = 0.029), and lower mean corpuscular hemoglobin concentration (317.38 ± 17.71 g/L versus 335.72 ± 14.68 g/L, P = 0.011) than matched IPAH patients. Multivariate Cox proportional hazards regression analyses showed baseline total bilirubin independently predicted the mortality of HHT-PAH after adjusting by age, cardiac index, mixed venous oxygen saturation, or serum uric acid. HHT-PAH patients may have a worse prognosis than matched IPAH patients. Baseline total bilirubin may be a promising predictor for the long-term prognosis in HHT-PAH patients.
Collapse
Affiliation(s)
- Wen Li
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Chang-Ming Xiong
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Qing Gu
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Xiao-Tong Wang
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Xiao-Ling Cheng
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Li Huang
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Tao Yang
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Qin Luo
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Zhi-Hui Zhao
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Xin-Hai Ni
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Zhi-Hong Liu
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Jian-Guo He
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| |
Collapse
|
21
|
Wan XK, Cheng XL, Tang Q, Han YZ, Hu G, Jiang DE, Wang QM. Atomically Precise Bimetallic Au19Cu30 Nanocluster with an Icosidodecahedral Cu30 Shell and an Alkynyl–Cu Interface. J Am Chem Soc 2017; 139:9451-9454. [DOI: 10.1021/jacs.7b04622] [Citation(s) in RCA: 81] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Xian-Kai Wan
- Department
of Chemistry, Tsinghua University, Beijing 10084, People’s Republic of China
- Department
of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian 361005, People’s Republic of China
| | - Xiao-Ling Cheng
- Department
of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian 361005, People’s Republic of China
| | - Qing Tang
- Department
of Chemistry, University of California, Riverside, Riverside, California 92521, United States
| | - Ying-Zi Han
- Department
of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian 361005, People’s Republic of China
| | - Guoxiang Hu
- Department
of Chemistry, University of California, Riverside, Riverside, California 92521, United States
| | - De-en Jiang
- Department
of Chemistry, University of California, Riverside, Riverside, California 92521, United States
| | - Quan-Ming Wang
- Department
of Chemistry, Tsinghua University, Beijing 10084, People’s Republic of China
- Department
of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian 361005, People’s Republic of China
| |
Collapse
|
22
|
Cheng XL, Liu ZH, Gu Q, Ni XH, Luo Q, Zhao ZH, He JG, Xiong CM. Prognostic Value of Pulmonary Artery Compliance in Patients with Pulmonary Arterial Hypertension Associated with Adult Congenital Heart Disease. Int Heart J 2017; 58:731-738. [DOI: 10.1536/ihj.16-449] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Xiao-Ling Cheng
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College
| | - Zhi-Hong Liu
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College
| | - Qing Gu
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College
| | - Xin-Hai Ni
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College
| | - Qin Luo
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College
| | - Zhi-Hui Zhao
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College
| | - Jian-Guo He
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College
| | - Chang-Ming Xiong
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College
| |
Collapse
|
23
|
Lin L, Cheng XL, Li MZ, Wang T, Dong MH, Wang ZY, Liao M. Antitumor effects of iridomyrmecin in HeLa cervical cancer cells are mediated via apoptosis induction, loss of mitochondrial membrane potential, cell cycle arrest and down-regulation of PI3K/Akt and up-regulation of lncRNA CCAT2 expression. BANGL J PHARMACOL 2016. [DOI: 10.3329/bjp.v11i4.27539] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
<p class="Abstract">The main purpose of the current study was to study the antitumor effects of iridomyrmecin against human cervical cancer cells (HeLa). Its effects on apoptosis induction, cell cycle phase distribution, PI3K/Akt signalling pathway and long non-coding RNA (lncRNA) were also investigated. Cytotoxic effects of iridomyrmecin were evaluated by MTT assay while the apoptotic effect was assessed by flow cytometry using annexin V-FITC assay. Western blot assay was used to study effects on PI3K/Akt signalling pathway. Results exhibited that iridomyrmecin led to concentration-dependent as well as time-dependent growth inhibitory effects. Iridomyrmecin-treated cells showed signs of early and late apoptosis. Iridomyrmecin treatment also led to sub-G1 cell cycle arrest as well as induced loss of mitochondrial membrane potential (ΔΨm). Further, Western blot assay revealed that iridomyrmecin treatment resulted in down-regulation of PI3K/Akt protein expressions in a dose-dependent manner while as it up-regulated lncRNA CCAT2 expression.</p><p class="Abstract"><strong>Video Clip</strong>:</p><p class="Abstract"><a href="https://youtube.com/v/4mKwQAi3Qbk">Flow cytometry for cell cycle analysis</a>: 3 min 20 sec</p><p> </p>
Collapse
|
24
|
Zhang LL, Lu YH, Cheng XL, Liu MY, Sun BR, Li CL. [A survey of correlation between serum 25-hydroxyvitamin D levels and dyslipidemia rlsk among middle-aged individuals in Beijing]. Zhonghua Nei Ke Za Zhi 2016; 55:599-603. [PMID: 27480552 DOI: 10.3760/cma.j.issn.0578-1426.2016.08.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
OBJECTIVE To evaluate vitamin D status in middle-aged subjects in Beijing and explore the correlation between serum 25-hydroxyvitamin D[25(OH)D] levels and dyslipidemia. METHODS A total of 448 individuals over 40 years old were enrolled in the cross-sectional survey. The general information, blood biochemical and lipid profiles and serum 25(OH)D levels were collected. The subjects were either divided into two groups (the dyslipidemia group and the non-dyslipidemia group) based on the lipid levels, or four groups according to quartiles of 25(OH)D levels. The association between 25(OH)D levels and dyslipidemia risk was analyzed by a logistic regression analysis. RESULTS A total of 234 cases were in dyslipidemia group, which accounted for 52.23% of the subjects. The serum 25(OH)D levels were significantly lower in the dyslipidemia group than in the non-dyslipidemia group both in men and in women (all P<0.05). The median serum 25(OH)D level in the total subjects was 15.7 (12.2, 20.1)μg/L with 91.1% subjects of serum 25(OH)D level<30 μg/L. The proportion of subjects with dyslipidemia (high TC, high TG, high LDL-C, or low HDL-C) increased with the decrease of 25(OH)D level quartiles (P<0.05). After adjustment of confounding factors, the logistic regression analysis showed that subjects in the lowest 25(OH) D quartile group had 143% higher risks for dyslipidemia than those in the highest quartile group. CONCLUSION These findings indicate that 25(OH)D insufficiency is highly prevalent among middle-aged individuals and it may be associated with the risk of dyslipidemia.
Collapse
Affiliation(s)
- L L Zhang
- Department of Geriatric Endocrinology, General Hospital of PLA, Beijing 100853, China
| | | | | | | | | | | |
Collapse
|
25
|
Cheng XL, He JG, Liu ZH, Gu Q, Ni XH, Zhao ZH, Luo Q, Xiong CM. Pulmonary Vascular Capacitance is Associated with Vasoreactivity and Long-Term Response to Calcium Channel Blockers in Idiopathic Pulmonary Arterial Hypertension. Lung 2016; 194:613-8. [PMID: 27272652 DOI: 10.1007/s00408-016-9905-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2016] [Accepted: 05/30/2016] [Indexed: 10/21/2022]
Abstract
PURPOSE This study aimed to identify the relationship between pulmonary vascular capacitance (PVC) and vasoreactivity in patients with idiopathic pulmonary arterial hypertension (IPAH), and the value of PVC in predicting long-term response to CCB treatment. METHODS Pulmonary vasodilator testing with inhaling iloprost was performed in 308 newly diagnosed IPAH patients. Acute vasodilator-responsive patients accepted CCBs treatment. Patients who benefit from long-term CCB were defined as those being in World Health Organization (WHO) functional class II or I after at least 1 year on CCB monotherapy. RESULTS PVC had significant correlations with WHO function class, 6-min walk distance, mean pulmonary arterial pressure, and pulmonary vascular resistance (r = -0.363, p < 0.001; r = 0.333, p < 0.001; r = -0.514, p < 0.001; r = -0.739, p < 0.001). Thirty-five acute vasodilator-responsive IPAH patients (11.4 %) displayed less severe disease and a higher baseline PVC (1.5 ± 0.6 vs. 1.1 ± 0.7 ml/mmHg, p = 0.003). During acute vasodilator testing, PVC increased significantly by mean of 79 ± 48 % and reached to a higher absolute value of 2.6 ± 1.5 ml/mmHg compared with non-responsive patients (1.4 ± 1.5 ml/mmHg, p < 0.001). Furthermore, PVC increased more during acute vasodilator testing in the 24 patients who benefit from long-term CCB treatment (1.4 ± 1.3 vs. 0.5 ± 0.4 ml/mmHg, p = 0.004). The OR of increased PVC during vasodilator testing for predicting patients with long-term response to CCB was 1.24 (95 % CI 1.02-1.50, p = 0.031) as assessed by multivariable logistic regression analysis. CONCLUSIONS PVC was higher in acute vasodilator-responsive IPAH patients and may be a predictor of long-term response to CCBs therapy.
Collapse
Affiliation(s)
- Xiao-Ling Cheng
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beilishi Road, Xicheng District, Beijing, 100037, China
| | - Jian-Guo He
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beilishi Road, Xicheng District, Beijing, 100037, China
| | - Zhi-Hong Liu
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beilishi Road, Xicheng District, Beijing, 100037, China
| | - Qing Gu
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beilishi Road, Xicheng District, Beijing, 100037, China
| | - Xin-Hai Ni
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beilishi Road, Xicheng District, Beijing, 100037, China
| | - Zhi-Hui Zhao
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beilishi Road, Xicheng District, Beijing, 100037, China
| | - Qin Luo
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beilishi Road, Xicheng District, Beijing, 100037, China
| | - Chang-Ming Xiong
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beilishi Road, Xicheng District, Beijing, 100037, China.
| |
Collapse
|
26
|
Xiong CM, Cheng XL. [Expert Forum Interventional treatment in chronic thromboembolic pulmonary hypertension]. Zhonghua Yi Xue Za Zhi 2016; 96:1236-1238. [PMID: 27122454 DOI: 10.3760/cma.j.issn.0376-2491.2016.16.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
|
27
|
Yu Y, Cheng XL, Gu LQ, Jing GJ, Chen H. [Femtosecond lenticule extraction for correction of myopia: clinical results and recovery of subbasal nerves]. Zhonghua Yan Ke Za Zhi 2016; 52:198-205. [PMID: 26979117 DOI: 10.3760/cma.j.issn.0412-4081.2016.03.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
OBJECTIVE To investigate the clinical efficacy, safety, predictability, corneal sensitivity, tear function and recovery of subbasal nerves after femtosecond lenticule extraction (FLEx) and laser in situ keratomileusis (LASIK). METHODS In this prospective, nonrandomized, comparative clinical study, 49 patients (98 eyes) were divided into two groups. FLEx was performed to treat myopia by Visumax femtosecond laser system, and LASIK was performed by Allegretto Wave laser system. The patients were followed up for 6 months. Visual acuity, manifest refraction, intraocular pressure, slit-lamp examination, corneal topography by Pentacam, tear break-up time, Schirmer test, corneal sensitivity and confocal microscopy were assessed. RESULTS Forty-four patients (88 eyes) completed the 6-month follow-up. Best corrected visual acuity (BCVA) was 0.89±0.14 in eyes with FLEx and 0.98±0.08 in eyes with LASIK at 1 day after surgery. After 10 days, BCVA was 0.98±0.09 and 1.02±0.09, respectively. At the final follow-up visit, the efficacy index was 1.09 in the FLEx group and 1.07 in the LASIK group, and the safety index was 1.12 and 1.07, respectively, in the two groups. Mean Schirmer score was (16.92±7.58) mm and (15.03±5.89) mm (t=1.316, P=0.192), mean tear break-up time was (8.94±2.57) s and (8.00±2.39) s (t=1.759, P=0.082), and corneal sensitivity was (56.46±4.49) mm and (51.38±8.16) mm (t=1.316, P=0.001) in the groups of FLEx and LASIK, respectively. At 10 days after surgery, the number of subbasal nerves was significantly decreased in the FLEx group, and in the LASIK group the subbasal nerve fibers were hardly observed. At 6 months, regenerated nerve fibers were evident in the subbasal area, which recovered faster in eyes with FLEx than in those with LASIK. CONCLUSIONS Femtosecond lenticule extraction appears to be efficient, safe and predictable for myopia. FLEx surgery is superior over LASIK in less reduction of corneal sensation and lower risk of harm to the subbasal nerve fibers.
Collapse
Affiliation(s)
- Y Yu
- Eye Institute, Affiliated Hospital of Nantong University, Nantong 226001, China
| | | | | | | | | |
Collapse
|
28
|
Zhang Y, Wang T, Huang HQ, Li W, Cheng XL, Yang J. Human MALAT-1 long non-coding RNA is overexpressed in cervical cancer metastasis and promotes cell proliferation, invasion and migration. J BUON 2015; 20:1497-1503. [PMID: 26854446] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
PURPOSE Long non-coding RNAs (lncRNAs) have been shown to play a crucial role in the development as well as the prognosis of various human cancers, particularly in human metastasis associated lung adenocarcinoma transcript-1 (MALAT-1), which has been shown to be upregulated in some tumors. However, the role of MALAT-1 in cervical cancer (CC) is yet to be elucidated. This study aimed to establish a correlation between MALAT-1 and its role in CC progression and prognosis. METHODS The expression of MALAT-1 was examined in tissue samples of 30 CC patients and was compared with the adjacent non-cancerous tissues. The relationship between MALAT-1 levels and clinicopathological parameters from the CC patients was analyzed. Cell migration and invasion assays were performed with quantification of the expression levels of MALAT-1 in 4 CC cell lines using RT-PCR. RESULTS Our results demonstrate that MALAT-1 is upregulated in CC. We found higher expression of MALAT-1 in all the 4 CC cell lines, especially in SiHa and ME-180 CC cell lines. After analysis of the relationship between MALAT-1 levels and clinicopathological parameters from CC patients, a robust correlation could be obtained between MALAT-1 overexpression with lymph node metastasis, tumor differentiation and clinical stage. Furthermore, the ectopic expression of MALAT-1 increased cell proliferation and contributed directly to invasion and migration. CONCLUSION Taken together, this study suggests an indispensible role played by MALAT-1 in CC progression, which may act as a potential prognostic indicator for CC and also could be a novel potential target for diagnosis of CC.
Collapse
Affiliation(s)
- Yan Zhang
- Department of Obstetrics and Gynaecology, Renmin Hospital of Wuhan University, Wuhan 430060, China
| | | | | | | | | | | |
Collapse
|
29
|
Fu XM, Li N, Lin M, Zhang W, Cheng XL, Liu MY, Lu YH, Li CL. [Correlation analysis of serum calcium levels and risks of diabetes mellitus in middle-aged and elderly men]. Nan Fang Yi Ke Da Xue Xue Bao 2015; 35:1369-1373. [PMID: 26547325] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
OBJECTIVE To investigate the correlation of serum calcium levels and the risks of diabetes mellitus (DM) in middle-aged elderly men. METHODS A total of 3386 male subjects aged 40-79 years were selected from two local communities of Beijing using stratified random sampling for this cross-sectional survey. The survey was conducted using questionnaires, and all the subjects underwent physical examination and blood tests of serum calcium, vitamin D and other biochemical parameters. The subjects were divided into normal glucose group, prediabetic group and diabetic group to compare their blood biochemical parameters and analyze the risk factors of diabetes. RESULTS The prevalence of diabetes and pre-diabetes was 32.31% in the 3386 subjects surveyed. Serum calcium, vitamin D and Creatinine (Cr) levels were significantly higher in pre-diabetic and diabetic groups than in the non-diabetic group (P/0.05), and age, body mass index, serum calcium, vitamin D, and Cr levels differed significantly between the former two groups (P/0.05). The prevalence of diabetes increased significantly with serum calcium level (P/0.05). Logistic regression analysis showed that age, body mass index, serum calcium, and serum vitamin D levels were independent risk factors for diabetes (P/0.05). CONCLUSION Male diabetic patients have abnormal serum calcium levels. An increased age and increased serum calcium levels are associated with higher risks of diabetes, and age, serum calcium, serum vitamin D, Cr, and body mass index are all risk factors of diabetes in men.
Collapse
Affiliation(s)
- Xiao-Min Fu
- 1Department of Geriatric Endocrinology, General Hospital of PLA, 2Department of Health care, Military General Hospital of Beijing, Beijing 100853, China. E-mail:
| | | | | | | | | | | | | | | |
Collapse
|
30
|
Yan ST, Xiao HY, Tian H, Li CL, Fang FS, Li XY, Cheng XL, Li N, Miao XY, Yang Y, Wang LC, Zou XM, Ma FL, He Y, Sai XY. The cutoffs and performance of glycated hemoglobin for diagnosing diabetes and prediabetes in a young and middle-aged population and in an elderly population. Diabetes Res Clin Pract 2015; 109:238-45. [PMID: 26059072 DOI: 10.1016/j.diabres.2015.05.047] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [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: 01/20/2015] [Revised: 05/14/2015] [Accepted: 05/23/2015] [Indexed: 12/23/2022]
Abstract
The aims were to compare the appropriate cutoffs of glycated hemoglobin (HbA1c) in a population of varying ages and to evaluate the performance of HbA1c for diagnosing diabetes and prediabetes. A total of 1064 participants in the young and middle-aged group and 1671 in the elderly group were included and underwent HbA1c testing and an oral glucose tolerance test (OGTT). Sensitivity, specificity, and area under the receiver operating characteristic curve (AUC) were calculated to evaluate the optimal HbA1c cutoffs. Kappa coefficients were used to test for agreement between HbA1c categorization and OGTT-based diagnoses. The optimal HbA1c cutoffs for diagnosing diabetes were 5.7% (39 mmol/mol) in the young and middle-aged group with a sensitivity of 66.7%, specificity of 86.7%, and AUC of 0.821 (95% CI: 0.686, 0.955) and 5.9% (41 mmol/mol) in the elderly group with a sensitivity of 80.4%, specificity of 73.3%, and AUC of 0.831 (0.801, 0.861). The optimal cutoffs for diagnosing prediabetes were 5.6% (38 mmol/mol) and 5.7% (39 mmol/mol) in the young and middle-aged group and in the elderly group, respectively. Agreement between the OGTT-based diagnosis of diabetes or prediabetes and the optimal HbA1c cutoff was low (all kappa coefficients <0.4). The combination of HbA1c and fasting plasma glucose increased diagnostic sensitivities or specificities. In conclusion, age-specific HbA1c cutoffs for diagnosing diabetes or prediabetes were appropriate. Furthermore, the performance of HbA1c for diagnosing diabetes and prediabetes was poor. HbA1c should be used in combination with traditional glucose criteria when detecting and diagnosing diabetes or prediabetes.
Collapse
Affiliation(s)
- Shuang-Tong Yan
- Department of Geriatric Endocrinology, Chinese PLA General Hospital, 28 Fuxing Road, Beijing 100853, China
| | - Hai-Ying Xiao
- Department of Geriatric Endocrinology, Chinese PLA General Hospital, 28 Fuxing Road, Beijing 100853, China
| | - Hui Tian
- Department of Geriatric Endocrinology, Chinese PLA General Hospital, 28 Fuxing Road, Beijing 100853, China.
| | - Chun-Lin Li
- Department of Geriatric Endocrinology, Chinese PLA General Hospital, 28 Fuxing Road, Beijing 100853, China
| | - Fu-Sheng Fang
- Department of Geriatric Endocrinology, Chinese PLA General Hospital, 28 Fuxing Road, Beijing 100853, China
| | - Xiao-Ying Li
- Department of Geriatric Cardiology, Chinese PLA General Hospital, Beijing 100853, China
| | - Xiao-Ling Cheng
- Department of Geriatric Endocrinology, Chinese PLA General Hospital, 28 Fuxing Road, Beijing 100853, China
| | - Nan Li
- Department of Geriatric Endocrinology, Chinese PLA General Hospital, 28 Fuxing Road, Beijing 100853, China
| | - Xin-Yu Miao
- Department of Geriatric Endocrinology, Chinese PLA General Hospital, 28 Fuxing Road, Beijing 100853, China
| | - Yan Yang
- Department of Geriatric Endocrinology, Chinese PLA General Hospital, 28 Fuxing Road, Beijing 100853, China
| | - Liang-Chen Wang
- Department of Geriatric Endocrinology, Chinese PLA General Hospital, 28 Fuxing Road, Beijing 100853, China
| | - Xiao-Man Zou
- Laboratory of Endocrinology, Chinese PLA General Hospital, Beijing 100853, China
| | - Fang-Ling Ma
- Laboratory of Endocrinology, Chinese PLA General Hospital, Beijing 100853, China
| | - Yao He
- Institute of Geriatrics, Chinese PLA General Hospital, Beijing 100853, China
| | - Xiao-Yong Sai
- Institute of Geriatrics, Chinese PLA General Hospital, Beijing 100853, China
| |
Collapse
|
31
|
Huang L, Liao LM, Liu AW, Wu JB, Cheng XL, Lin JX, Zheng M. Overexpression of long noncoding RNA HOTAIR predicts a poor prognosis in patients with cervical cancer. Arch Gynecol Obstet 2014; 290:717-23. [PMID: 24748337 DOI: 10.1007/s00404-014-3236-2] [Citation(s) in RCA: 121] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2013] [Accepted: 03/28/2014] [Indexed: 01/06/2023]
Abstract
PURPOSE The long noncoding RNA HOTAIR has been reported to be a good biomarker for poor prognosis in a variety of human cancers. However, whether HOTAIR could serve as novel biomarker to predict prognosis in cervical cancer or not is unknown. The aim of the present study was to examine the expression of HOTAIR in cervical cancers and to investigate the relationship between this lncRNA expression levels and existing clinicopathological factors and patient survival. METHODS We examined the expression of HOTAIR in 218 cervical cancer tissues and matched 218 adjacent normal tissues using quantitative real-time RT-PCR and analyzed its correlation with the clinical parameters. RESULTS The results showed that HOTAIR expression in cervical cancer tissues was significantly upregulated compared with the matched nontumorous tissues (P < 0.0001). Increased HOTAIR expression was significantly correlated with FIGO stage (P < 0.0001), lymph node metastasis (P < 0.0001), depth of cervical invasion (P < 0.0001), tumor size (P = 0.006) and age (P = 0.020), but not other clinical characteristics. Moreover, cervical cancer patients with HOTAIR higher expression have shown significantly poorer overall survival (P < 0.0001) and disease-free survival (P < 0.0001) than those with lower HOTAIR expression. Univariate (P < 0.0001, HR = 4.566, 95 % CI 2.122-9.825) and multivariate (P = 0.012, HR = 2.863, 95 % CI 1.263-76.490). Cox regression analyses showed that HOTAIR expression served as an independent predictor for overall survival. CONCLUSIONS our data indicate that high expression of HOTAIR is involved in cervical cancer progression and could be a potential target for diagnosis and gene therapy.
Collapse
Affiliation(s)
- Long Huang
- Department of Oncology, The Second Affiliated Hospital of Nanchang University, 1 Minde Road, Nanchang, Jiangxi, China,
| | | | | | | | | | | | | |
Collapse
|
32
|
Liao LM, Sun XY, Liu AW, Wu JB, Cheng XL, Lin JX, Zheng M, Huang L. Low expression of long noncoding XLOC_010588 indicates a poor prognosis and promotes proliferation through upregulation of c-Myc in cervical cancer. Gynecol Oncol 2014; 133:616-23. [PMID: 24667250 DOI: 10.1016/j.ygyno.2014.03.555] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2013] [Revised: 03/11/2014] [Accepted: 03/16/2014] [Indexed: 01/08/2023]
Abstract
OBJECTIVE The identification and investigation of cancer-associated long non-coding RNAs are important for understanding the molecular biology of cancer. The aim of the present study was to examine the expression pattern of lncRNA XLOC_010588 in cervical cancer and to evaluate its biological role and clinical significance in tumor progression. METHODS We examined the expression of XLOC_010588 in 218 cervical cancer tissues and matched 218 adjacent normal tissues using real-time qRT-PCR. Over-expression and RNA interference approaches were used to investigate the biological functions of XLOC_010588. The effect of XLOC_010588 on proliferation was evaluated by MTT and BrdU assays. Western blot assays were used to investigate the molecular mechanism by which XLOC_010588 increases cervical cancer cell proliferation. RESULTS The results showed that XLOC_010588 expression in cervical cancer was significantly downregulated. Decreased XLOC_010588 expression was correlated with FIGO stage, tumor size and SCC-Ag. Moreover, cervical cancer patients with XLOC_010588 lower expression have shown poorer prognosis. Multivariate Cox regression analyses showed that XLOC_010588 expression served as an independent predictor for overall survival. Ectopic expression of XLOC_010588 inhibited the proliferation of HeLa and SiHa cells. By contrast, knockdown of XLOC_010588 promoted the growth of HCC94 cells. Western blot assays confirmed that XLOC_010588 physically associates with c-Myc, consequently decreasing the expression of c-Myc. The expression of XLOC_010588 and c-Myc is strongly correlated in cervical cancer tissues. CONCLUSION These results suggested that XLOC_010588 plays a pivotal role in cervical cancer cell proliferation via decreasing c-Myc expression and implicated the potential application of XLOC_010588 in cervical cancer therapy.
Collapse
Affiliation(s)
- Ling-Min Liao
- Department of Ultrasound, The Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Xiao-Ying Sun
- Department of Gynecology and Obstetrics, Central Hospital Attached to Shenyang Medical College, Shenyang, China
| | - An-Wen Liu
- Department of Oncology, The Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Jian-Bing Wu
- Department of Oncology, The Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Xiao-Ling Cheng
- Department of Medical Imaging, Women And Children Health Institute Futian, Shenzhen, China
| | - Jia-Xin Lin
- Department of Gynecology, Cancer Center, Sun Yat-sen University, Guangzhou, China
| | - Min Zheng
- Department of Gynecology, Cancer Center, Sun Yat-sen University, Guangzhou, China
| | - Long Huang
- Department of Oncology, The Second Affiliated Hospital of Nanchang University, Nanchang, China.
| |
Collapse
|
33
|
Xiao HY, Lu YH, Gong YP, Pei Y, Cheng XL, Li N, Fang FS, Tian H, Li CL. [Correlation of sex hormones and parathyroid hormone with biochemical markers of bone turnover in aged men]. Zhonghua Nan Ke Xue 2014; 20:257-262. [PMID: 24738465] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
OBJECTIVE To investigate the correlation of serum sex hormones and parathyroid hormone (PTH) with the biochemical markers of bone turnover in aged men. METHODS We collected the laboratory data of 465 men aged 60- 93 (73. 1 +/- 8. 3) years old, who came for routine physical examinations in our hospital. We obtained the levels of serum follicle- stimulating hormone (FSH), luteinizing hormone (LH), estradiol (E2), testosterone (T), sex hormone binding globulin (SHBG), PTH, 25-hydroxy-vitamin D3 (25(OH) D3), and bone turnover markers C-terminal telopeptide of type I collagen (CTX), osteocalcin (OC) and amino-terminal propeptide of type I procollagen (PINP). We also determined free testosterone (FT) , bioactive testosterone (BT) , testosterone secretion index (TSI) and FT index (FTI), and analyzed the correlation of each index with the biochemical markers of bone turnover. RESULTS The concentrations of serum FSH, LH, and SHBG increased, while the levels of FT, BT, TSI, FTI, PTH, CTX, OC and PINP decreased with age, especially in those over 80 years old (P <0.05). PTH was positively correlated with CTX, OC and PINP (r =0. 227, 0. 269 and 0. 162, P <0. 01), even after the adjustment for age, while SHBG negatively correlated with OC (r = -0. 100, P <0.05). The bone turnover markers increased with the elevation of the PTH quartiles, with significant differences between the first and the fourth quartile (P <0. 01). Multiple stepwise regression analysis showed that age was correlated inversely with CTX, OC and PINP ( beta = -0. 126, -0. 141 and -0. 122, P <0.05) , PTH positively with the three markers (beta = 0. 196, 0.279 and 0.189; P <0. 001), and SHBG negatively with OC ( beta = -0. 100, P <0.05) . CONCLUSION Aging is the fundamental cause of reduced bone turnover in aged men. The levels serum PTH and SHBG are significantly associated with the biochemical markers of bone turnover.
Collapse
|
34
|
Huang L, Liao LM, Liu AW, Wu JB, Cheng XL, Lin JX, Zheng M. Analysis of the impact of platinum-based combination chemotherapy in small cell cervical carcinoma: a multicenter retrospective study in Chinese patients. BMC Cancer 2014; 14:140. [PMID: 24575810 PMCID: PMC3939817 DOI: 10.1186/1471-2407-14-140] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [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: 11/06/2013] [Accepted: 02/21/2014] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Small cell cervical carcinoma (SCCC) is a rare, aggressive tumor with a poor prognosis. However, information in relation to its treatment is scarce due to the limited numbers of patients. The aim of this study was to establish whether platinum-based combination chemotherapy may by beneficial in this patient population. METHODS We carried out a multicenter, retrospective study comprising of 72 Chinese patients with SCCC. The patients were treated between 1995 and 2010 at Sun Yat-sen Memorial Hospital or the Cancer Center of Sun Yat-Sen University, and at the First Affiliated Hospital of Shantou University Medical College, China. RESULTS Of the 72 patients, 46/72 (63.9%) had Federation of Gynecology and Obstetrics (FIGO) stage Ia-Ib2 and 26/72 (36.1%) had stage IIa-IV disease. Surgery was performed in 63/72 (87.5%) patients, 61/72 (84.7%) patients received chemoradiotherapy and 35/72 (48.6%) received radiotherapy. The 3-year overall survival (OS) and disease-free survival (DFS) rates were as follows: Ia (100%, 100%); Ib1 (62%, 57%); Ib2 (53%, 48%); IIa (36%, 23%); IIb (29%, 21%); IIIb (50%, 50%); and IV (0%, 0%), respectively. The estimated 3-year OS and DFS rates in patients who received platinum-based combination chemotherapy (etoposide + cisplatin [EP], or paclitaxel + cisplatin [TP]) as part of their adjuvant treatment were 64.8% and 63.0%, respectively, compared to 25.2% and 22.0% in those who did not (P = 0.0003; P = 0.0003). Univariate analysis showed that platinum-based combination chemotherapy was associated with improved survival compared to other chemotherapy techniques or no chemotherapy (OS: HR = 0.227; 95% CI, 0.099-0.524; P = 0.001; DFS: HR = 0.210; 95% CI, 0.087-0.506; P = 0.001). Multivariate analysis identified FIGO stage, lymphatic metastasis and platinum-based combination chemotherapy as independent prognostic factors for improved survival in patients with SCCC. CONCLUSIONS Platinum-based combination chemotherapy (with EP or TP) can improve the 3-year survival outcomes in patients with SCCC. Therefore, it should be considered an important component in a future standardized treatment strategy for SCCC.
Collapse
Affiliation(s)
- Long Huang
- Department of Oncology, The Second Affiliated Hospital of Nanchang University, 1 Minde Road, Nanchang, Jiangxi, China.
| | | | | | | | | | | | | |
Collapse
|
35
|
Abstract
OBJECTIVE The elevated plasma glucose level and/or insulin resistance in diabetes or impaired glucose tolerance play important roles in the pathogenesis of arterial stiffness. The present study investigated whether insulin resistance correlated with arterial stiffness before the development of glucose intolerance. METHODS We conducted a cross-sectional analysis in 872 young to middle-age individuals with normal glucose tolerance (aged 36.2±8.5 years, BMI 24.6±3.1 kg/m2 [mean±SD]). The homeostasis model assessment (HOMA) index was used as a quantitative assessment of the fasting insulin resistance (FIR), and the plasma insulin level after glucose loading was adopted as an index of the post-challenge insulin resistance (PIR). The Matsuda index [ISI (composite)] was used as a measurement of the insulin sensitivity. The arterial stiffness assessed by the brachial-ankle pulse wave velocity (baPWV) was adopted to quantify its independent associations with insulin resistance. RESULTS The univariate linear regression analysis indicated that the fasting plasma glucose level (FPG, β = 68.2; 95% CI 40.9, 95.6; p<0.001), post-challenge plasma glucose level (PPG, β = 25.3; 95% CI 15.6, 35.0; p<0.001), FIR (β = 24.5; 95% CI 14.1, 35.0; p<0.001), PIR (β=1.30; 95% CI 0.87, 1.73; p<0.001) and ISI (composite) (β = -3.55; 95% CI -5.02, -2.07; p<0.001) were all significantly correlated with the baPWV. After adjustment for sex, age, BMI, heart rate, smoking, systolic blood pressure, total cholesterol, LDL-cholesterol and family history of diabetes, the multivariate linear regression analysis demonstrated that the PIR (model 1, β = 0.39, p=0.038; model 2, β = 0.39, p=0.035; model 3, β = 0.39, p=0.035) was an independent contributor to the baPWV, while the FIR, FPG, PPG and ISI (composite) failed to show any significant contribution. CONCLUSION The insulin resistance correlated with the arterial stiffness before glucose intolerance.
Collapse
Affiliation(s)
- Fu-Sheng Fang
- Department of Geriatric Endocrinology, Chinese PLA General Hospital, China
| | | | | | | | | | | | | | | |
Collapse
|
36
|
Abstract
OBJECTIVE To investigate the influence of glycemic variability on the HbA1c level in elderly male patients with type 2 diabetes (T2DM). METHODS The 24-h glucose profiles were obtained using a continuous glucose monitoring system in 291 elderly male type 2 diabetic patients. The relationship between the glycemic variability and HbA1c level was assessed in these patients. RESULTS The mean amplitude of glycemic excursions (MAGE) in patients with HbA1c ≥7.0% was significantly higher than in patients with HbA1c <7.0% (4.33±1.67 vs. 3.48±1.46 mmol/L, p<0.001). A simple (Pearson's) correlation analysis indicated that the MAGE was significantly correlated with the HbA1c (r=0.229, p<0.001). Compared with the lowest quartile, the highest quartile of the MAGE was associated with a significantly increased risk of having a HbA1c ≥7.0% after multiple adjustments (p (for trend) <0.001). CONCLUSION The glycemic variability had a significant influence on the HbA1c level in elderly male patients with T2DM. The present data suggests that patients with higher glycemic variability might have higher HbA1c levels.
Collapse
Affiliation(s)
- Fu-Sheng Fang
- Department of Geriatric Endocrinology, Chinese PLA General Hospital, China
| | | | | | | | | | | |
Collapse
|
37
|
Wang JH, Hou QQ, Tang K, Cheng XL, Dong LH, Liu YJ, Liu CB. Receptor-based QSAR study for a series of 3,3-disubstituted-5-aryl oxindoles and 6-aryl benzimidazol-2-ones derivatives as progesterone receptor inhibitors. SAR QSAR Environ Res 2011; 22:775-799. [PMID: 22004567 DOI: 10.1080/1062936x.2011.623324] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Receptor-based comparative molecular field analysis (CoMFA) and comparative molecular similarity indices analysis (CoMSIA) were performed on a series of 54 progesterone receptor (PR) inhibitors. The established CoMFA model from the training set gives statistically significant results with the cross-validated q (2) of 0.534 and non-cross-validated [Formula: see text] of 0.947. The best CoMSIA model was derived by the combination of steric field and hydrophobic field with a q (2) of 0.615 and [Formula: see text] of 0.954. A test set of 18 compounds was used to validate the predictive ability of the two models. The predicted correlation coefficients [Formula: see text] are 0.681 and 0.677 for CoMFA and CoMSIA models, respectively. Based on the CoMFA maps, the key structural characters of progesterone receptor inhibitors are identified. Moreover, the binding modes of oxindoles and benzimidazol-2-ones are also given by the quantum mechanical/molecular mechanical (QM/MM) calculations. This may provide useful information for drug design.
Collapse
Affiliation(s)
- J H Wang
- Key Lab of Colloid and Interface Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan, Shandong, China
| | | | | | | | | | | | | |
Collapse
|
38
|
Fang FS, Tian H, Li CL, Liu MY, Miao XY, Cheng XL. [The correlation between hyperinsulinemia and pulse wave velocity]. Zhonghua Nei Ke Za Zhi 2011; 50:299-302. [PMID: 21600148] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
OBJECTIVE To study the correlation between hyperinsulinemia (HIns) and arteriosclerosis in one community in Beijing. METHODS Subjects who received arteriosclerosis screening in physical examination annually were studied. All subjects were received 75g oral glucose tolerance test (OGTT) to evaluate glucose metabolic level, and brachial-ankle pulse wave velocity (baPWV) examination to evaluate arteriosclerosis. The correlation between hyperinsulinemia and pulse wave velocity was analyzed. RESULTS Among all the 1046 subjects under investigation, baPWV of subjects with HIns was higher than subjects with normoinsulinemic (NIns) in different glucose metabolism status [normal glucose tolerance, (1381.2 ± 280.8) cm/s vs (1280.3 ± 218.7) cm/s; imparied glucose regulation, (1557.5 ± 319.3) cm/s vs (1474.7 ± 305.1) cm/s; diabetes, (1764.3 ± 476.6) cm/s vs (1664.2 ± 374.6) cm/s], especially in subjects with normal glucose tolerance (P < 0.01). The prevalence of cardiovascular risk factors in subjects with HIns was much higher than subjects with NIns (P < 0.01). Multiple logistic regression analysis showed that hyperinsulinemia was the risk factor of arteriosclerosis, and the OR (95%CI) of subjects with HIns was 1.91 (1.169 - 3.105, P < 0.01) as compared to the subjects with NIns. CONCLUSION The subjects with HIns suffered from much more metabolic risk factors than NIns. Hyperinsulinemia that closely correlated with baPWV was a risk factor of arteriosclerosis.
Collapse
Affiliation(s)
- Fu-Sheng Fang
- Department of Geriatric Endocrinology, Chinese PLA General Hospital, Beijing 100853, China
| | | | | | | | | | | |
Collapse
|
39
|
Abstract
Although smoking-related coronary vascular disease is well documented, the effects of nicotine have not been fully investigated. There is controversy over reports about the effect of nicotine on apoptosis. The effect of nicotine on apoptosis of human umbilical vein endothelial cells (HUVECs) and the expressions of Fas/Fas ligand (FasL) and caspase-3 were evaluated in this study. Annexin V fluorescein isothiocyanate and propidium iodide double staining demonstrated that nicotine (0.2 microM, 0.5 microM and 1 microM) could induce apoptosis of HUVECs; reverse transcription (RT)-PCR and Western blotting analysis demonstrated that levels of Fas and FasL expression were increased in nicotine-treated HUVECs. Moreover, caspase-3 expression was also increased. These data indicate that nicotine induces the apoptosis of HUVECs, and that the Fas/FasL pathway may play an important role. This provides evidence that nicotine may have an important role in cardiovascular pathology and atherogenesis.
Collapse
Affiliation(s)
- X L Cheng
- Deparment of Anatomy, Shanxi Medical University, Taiyuan, Shanxi, P.R. China.
| | | | | | | |
Collapse
|
40
|
Ma SH, Le HB, Jia BH, Wang ZX, Xiao ZW, Cheng XL, Mei W, Wu M, Hu ZG, Li YG. Peripheral pulmonary nodules: relationship between multi-slice spiral CT perfusion imaging and tumor angiogenesis and VEGF expression. BMC Cancer 2008; 8:186. [PMID: 18590539 PMCID: PMC2474637 DOI: 10.1186/1471-2407-8-186] [Citation(s) in RCA: 65] [Impact Index Per Article: 4.1] [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: 11/27/2007] [Accepted: 06/30/2008] [Indexed: 01/11/2023] Open
Abstract
Background The aim of this study is to investigate the relationship between16-slice spiral CT perfusion imaging and tumor angiogenesis and VEGF (vascular endothelial growth factor) expression in patients with benign and malignant pulmonary nodules, and differential diagnosis between benign and malignant pulmonary nodules. Methods Sixty-four patients with benign and malignant pulmonary nodules underwent 16-slice spiral CT perfusion imaging. The CT perfusion imaging was analyzed for TDC (time density curve), perfusion parametric maps, and the respective perfusion parameters. Immunohistochemical findings of MVD (microvessel density) measurement and VEGF expression was evaluated. Results The shape of the TDC of peripheral lung cancer was similar to those of inflammatory nodule. PH (peak height), PHpm/PHa (peak height ratio of pulmonary nodule to aorta), BF (blood flow), BV (blood volume) value of peripheral lung cancer and inflammatory nodule were not statistically significant (all P > 0.05). Both showed significantly higher PH, PHpm/PHa, BF, BV value than those of benign nodule (all P < 0.05). Peripheral lung cancer showed significantly higher PS (permeability surface) value than that of inflammatory nodule and benign nodule (all P < 0.05). BV, BF, PS, MTT, PH, PHpm/PHa, and MVD among three groups of peripheral lung cancers were not significantly (all P > 0.05). In the case of adenocarcinoma, BV, BF, PS, PHpm/PHa, and MVD between poorly and well differentiation and between poorly and moderately differentiation were statistically significant (all P < 0.05). The peripheral lung cancers with VEGF positive expression showed significantly higher PH, PHpm/PHa, BF, BV, PS, and MVD value than those of the peripheral lung cancer with VEGF negative expression, and than those of benign nodule with VEGF positive expression (all P < 0.05). When investigating VEGF negative expression, it is found that PH, PHpm/PHa, and MVD of inflammatory nodule were significantly higher than those of peripheral lung cancer, PS of inflammatory nodule were significantly lower than that of peripheral lung cancer (all P < 0.05). PH, PHpm/PHa, BF, and BV of benign nodule were significantly lower than those of inflammatory nodule (all P < 0.05), rather than PS and MTT (mean transit time) (all P > 0.05). PH, PHpm/PHa, BV, and PS of benign nodule were significantly lower than those of peripheral lung cancer (all P < 0.05). In the case of VEGF positive expression, MVD was positively correlated with PH, PHpm/PHa, BF, BV, and PS of peripheral lung cancer and PS of benign nodule (all P < 0.05). Conclusion Multi-slice spiral CT perfusion imaging closely correlated with tumor angiogenesis and reflected MVD measurement and VEGF expression. It provided not only a non-invasive method of quantitative assessment for blood flow patterns of peripheral pulmonary nodules but also an applicable diagnostic method for peripheral pulmonary nodules.
Collapse
Affiliation(s)
- Shu-Hua Ma
- Department of Radiology, First Affiliated Hospital, Medical College of Shantou University, Shantou 515041, PR China.
| | | | | | | | | | | | | | | | | | | |
Collapse
|
41
|
Cheng YH, Cheng XL, Radić Z, McCammon JA. Acetylcholinesterase: mechanisms of covalent inhibition of H447I mutant determined by computational analyses. Chem Biol Interact 2008; 175:196-9. [PMID: 18657802 PMCID: PMC2576475 DOI: 10.1016/j.cbi.2008.04.044] [Citation(s) in RCA: 8] [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: 01/25/2008] [Revised: 04/22/2008] [Accepted: 04/23/2008] [Indexed: 11/25/2022]
Abstract
The reaction mechanisms of two inhibitor TFK(+) and TFK(0) binding to H447I mutant mouse acetylcholinesterase (mAChE) have been investigated by using a combined ab initio quantum mechanical/molecular mechanical (QM/MM) approach and classical molecular dynamics (MD) simulations. TFK(+) binding to the H447I mutant may proceed with a different reaction mechanism from the wild-type. A water molecule takes over the role of His447 and participates in the bond breaking and forming as a "charge relayer". Unlike in the wild-type mAChE case, Glu334, a conserved residue from the catalytic triad, acts as a catalytic base in the reaction. The calculated energy barrier for this reaction is about 8kcal/mol. These predictions await experimental verification. In the case of the neutral ligand TFK(0), however, multiple MD simulations on the TFK(0)/H447I complex reveal that none of the water molecules can be retained in the active site as a "catalytic" water. Taken together our computational studies confirm that TFK(0) is almost inactive in the H447I mutant, and also provide detailed mechanistic insights into the experimental observations.
Collapse
Affiliation(s)
- Y H Cheng
- Howard Hughes Medical Institute, Department of Chemistry and Biochemistry, University of California at San Diego, 9500 Gilman Drive, La Jolla, CA 92093-0365, USA.
| | | | | | | |
Collapse
|
42
|
Zhao SM, Cheng XL, Hu J, Xiang GC, Zhang JS, Li RQ. Clinical assessment of preventing febrile nonhemolytic transfusion reaction by leukocyte-depleted blood transfusion. Zhongguo Shi Yan Xue Ye Xue Za Zhi 2002; 10:568-70. [PMID: 12513724] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/28/2023]
Abstract
The objective was designed to assess the clinical efficiency of preventing febrile nonhemolytic transfusion reactions (FNHTR) with transfusion of leukocyte-depleted RBC and platelet concentrates. One hundred patients with cirrhosis of liver, gastric ulcer and cancer were selected to receive RBC concentrates with leukocyte filtration. Another group of 50 patients with liver necrosis, gastric ulcer and cancer were selected to receive non-filtered RBC concentrates. Two hundred and forty patients with acute or chronic leukemia, aplastic anemia, multiple myeloma, thrombocytopenia purpura, diabetes mellitus, cirrhosis of liver, upper gastrointestinal hemorrhage, severe hepatitis, burn and cancer post radioactive or chemical treatment were divided into two group with 120 patients in each one and selected randomly to receive platelet concentrates. The incidence rates of FNHTR in all patients were investigated. Results showed that there was no FNHTR in 100 transfusions with leukocyte-depleted RBC concentrates. Eight out of 50 patients with non-filtrated RBC concentrates showed FNHTR. The incidence of FNHTR was sixteen (16%) in non-filtrated transfusion. Twenty-five and 7 patients manifested FNHTR respectively in non-filtrated or filtrated platelets transfusions. The incidence of FNHTR was 20.83% and 5.83% respectively in non-filtrated or filtrated platelet transfusion. It is concluded that leukocyte-depleted RBC and platelet concentrates reduces FNH TR in blood transfusion.
Collapse
Affiliation(s)
- Shu-Ming Zhao
- Department of Transfusion Medicine, Southwest Hospital, The Third Military Medical University, Chongqing 400038, China.
| | | | | | | | | | | |
Collapse
|
43
|
Cheng XL, Li QB, Liang HB. [Analysis of organic additives in copper-plating brightener by high performance liquid chromatography]. Se Pu 1999; 17:602-3. [PMID: 12552707] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/28/2023] Open
Abstract
This paper describes a high performance liquid chromatographic method for analysis of organic additives in copper-plating brightener. The copper-plating brightener was filtered through 0.45 microgram micropore membrane and determined on a Spherisorb-C6H5 column, with V(methanol):V(water) = 30:70 mobile phase at the flow rate of 1.5 mL/min, and detected at UV 210 nm. 2-benzimidazolethiol, ethylene thiourea, 1-propanesulfonic acid 3,3'-dithio-bis-disodium salt were separated and determined. The recoveries were more than 99% with CV less than 1%. The method is simple and rapid.
Collapse
Affiliation(s)
- X L Cheng
- Guangdong University of Technology, Guangzhou 510090, China
| | | | | |
Collapse
|
44
|
Lin JG, Huang CY, Xue YY, Chu CW, Cheng XL, Ho JC. Pressure effect on Tc for (Yb1-xPrx)Ba2Cu3O7. Phys Rev B Condens Matter 1996; 53:11855-11859. [PMID: 9982815 DOI: 10.1103/physrevb.53.11855] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
|
45
|
Cheng XL. [Relieving renal colic by acupoint press]. Zhonghua Hu Li Za Zhi 1993; 28:602-3. [PMID: 8111884] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
|
46
|
Yan ZZ, Tao Y, Cheng XL, Sun JW, Zhang SZ. [Screening of beta-N-acetylhexosaminidase forming strains and conditions for enzyme production]. Wei Sheng Wu Xue Bao 1990; 30:122-8. [PMID: 2141744] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
About 1200 strains of microorganisms were screened including fungi, actinomyces, and bacteria, in which 237 strains producing the enzyme desired. The results showed that the beta-GlcNAcase and beta-GalNAcase always co-existed in one strain, though may be in different ratio. From strains mentioned above the authors screened out a potent beta-N-acetylhexosaminidase producing strain, Aspergillus tamarii S215, from the soil sample. The optimal conditions for enzyme production were as follows: the microorganisms was inoculated in a 5% wheat bran suspension, cultured at 28-30 degrees C on shaker for 5-6 days. The productivity can be moderately enhanced by the addition of cellobiose or glucosamine or galactosamine or by the extra supplement of (NH4)2SO4 and NH4NO3 as N sources. In the culture filtrate of Asp. tamarii, the alpha, (beta)-galactosidase, beta-glucosidase, alpha-mannosidase and beta-fucosidase were also found.
Collapse
Affiliation(s)
- Z Z Yan
- Institute of Microbiology, Academia Sinica, Beijing
| | | | | | | | | |
Collapse
|
47
|
Sun JW, Cheng XL, Yan ZZ, Zhang SZ. [The in vitro effects of dextranase on dental plaque produced by Streptococcus mutans]. Wei Sheng Wu Xue Bao 1988; 28:242-8. [PMID: 3250097] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
|
48
|
Sun JW, Cheng XL, Yan ZZ, Zhu MF, Zhang SZ. [Screening of dextranase-producing strains and comparison of their enzymatic properties]. Wei Sheng Wu Xue Bao 1988; 28:45-55. [PMID: 3388826] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
|