1
|
Chen C, Wang X, Li H, Zuo H. Effects of comprehensive nursing interventions on wound pain in patients undergoing catheter insertion for peritoneal dialysis. Int Wound J 2024; 21:e14795. [PMID: 38572781 PMCID: PMC10993332 DOI: 10.1111/iwj.14795] [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] [Received: 01/27/2024] [Accepted: 02/04/2024] [Indexed: 04/05/2024] Open
Abstract
This study investigates the effects of comprehensive nursing interventions on wound pain in patients undergoing catheter insertion for peritoneal dialysis. Sixty patients who underwent catheter insertion for peritoneal dialysis from January 2021 to January 2023 at our hospital were selected as subjects and randomly divided into an experimental group and a control group using a random number table method. The control group received routine nursing care, while the experimental group was subjected to comprehensive nursing interventions. The study compared the impact of nursing measures on visual analogue scale (VAS), self-rating anxiety scale (SAS), self-rating depression scale (SDS) and nursing satisfaction between the two groups. The analysis revealed that on the third, fifth and seventh days post-intervention, the experimental group's wound VAS scores were significantly lower than those of the control group (p < 0.001). Furthermore, levels of anxiety and depression were markedly lower in the experimental group compared with the control group (p < 0.001). In addition, the nursing satisfaction rate was significantly higher in the experimental group than in the control group (96.67% vs. 73.33%, p = 0.011). This study indicates that the application of comprehensive nursing interventions in patients undergoing catheter insertion for peritoneal dialysis is highly effective. It can alleviate wound pain and negative emotions to a certain extent, while also achieving high patient satisfaction, thus demonstrating significant clinical value.
Collapse
Affiliation(s)
- Chao Chen
- Department of NephrologyThe First Affiliated Hospital of Chongqing Medical UniversityChongqingChina
| | - Xiang‐Lei Wang
- Department of NephrologyThe First Affiliated Hospital of Chongqing Medical UniversityChongqingChina
| | - Hui Li
- Department of NephrologyThe First Affiliated Hospital of Chongqing Medical UniversityChongqingChina
| | - Hong Zuo
- Department of NephrologyThe First Affiliated Hospital of Chongqing Medical UniversityChongqingChina
| |
Collapse
|
2
|
Fan G, Shi X, Huo C, Zuo H. Identifying critical genes and pathways of doxorubicin-induced cardiomyopathy via bioinformatics analysis. Eur Rev Med Pharmacol Sci 2024; 28:1641-1650. [PMID: 38497849 DOI: 10.26355/eurrev_202403_35578] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 03/19/2024]
Abstract
OBJECTIVE The pathogenesis of doxorubicin (DOX) induced cardiomyopathy (DCM) is still uncertain. We aimed to identify the critical genes and pathways involved in DCM based on bioinformatics analysis. MATERIALS AND METHODS The GSE59672 and GSE23598 mice heart tissue microarray data were obtained from Gene Expression Omnibus (GEO) database. The "limma" package of R software was used to screen the differently expressed genes (DEGs). GO (Gene Ontology) and KEGG (Kyoto Encyclopedia of Genes and Genomes) analyses were performed on DEGs by using "clusterProfiler" package in R software. The PPI (Protein - Protein Interaction) network of DEGs constructed by STRING online database and thereby the top 15 hub genes selected by cytoHubba in Cytoscape software. The hub genes interaction was performed by GeneMANIA online database. The "Corrplot" R package was employed to assess hub genes correlation. RESULTS Finally, a total of 492 and 501 DEGs were screened in GSE59672 and GSE23598 datasets, respectively. GO analyses revealed that DEGs were mainly involved in the regulation of extracellular matrix organization, metabolic process, regulation of collagen-containing extracellular matrix. KEGG pathway analyses indicated that DEGs were mainly involved in protein digestion and absorption, ECM-receptor interaction, phagosome, and p53 signaling pathway. Finally, the 8 hub genes were identified, including Col1a1, Col3a1, Col1a2, Col6a1, Ptprc, Tyrobp, Itgb2, and Ctss. CONCLUSIONS The present study identified a series of key genes, including Col1a1, Col3a1, Col1a2, Col6a1, Ptprc, Tyrobp, Itgb2, and Ctss. In addition, important pathways were also discovered. The results of this study may provide a novel molecular mechanism and potential therapeutic targets for DCM.
Collapse
Affiliation(s)
- G Fan
- Cardiology Department, Xianyang Central Hospital, Xianyang, Shaanxi Province, China.
| | | | | | | |
Collapse
|
3
|
Fan G, Guo DL, Zuo H. The impact of sodium-glucose Cotransporter-2 inhibitors on lipid profile: A meta-analysis of 28 randomized controlled trials. Eur J Pharmacol 2023; 959:176087. [PMID: 37777105 DOI: 10.1016/j.ejphar.2023.176087] [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] [Received: 07/21/2023] [Revised: 09/20/2023] [Accepted: 09/26/2023] [Indexed: 10/02/2023]
Abstract
AIM The present study aimed to evaluate the impact of sodium-glucose cotransporter-2 inhibitors (SGLT2is) on blood lipid profile. METHODS We searched the PubMed, Cochrane Library, Medline, and EMBASE databases from the inception to July 2023 for randomized controlled trials (RCTs) comparing SGLT2i with placebo regarding lipid profile changes. The "Meta" package of R software was applied for data synthesis. RESULTS A total of 28 RCTs were included and 5192 patients participated in the present study, including 2686 patients who received SGLT2is intervention and 2506 patients who were in the control group. SGLT2is significantly increased blood low density lipoprotein cholesterol (LDL-C) levels [mean difference (MD): 0.09 mmol/L, 95% confidence interval (CI) (0.03, 0.16), 95% prediction interval (PI) (-0.06, 0.24), P = 0.0046] and high density lipoprotein cholesterol (HDL-C) levels [MD: 0.08 mmol/L, 95% CI (0.06, 0.11), 95% PI (-0.00, 0.17), P < 0.0001]. However, we observed neutral effect of SGLT2is on total cholesterol (TC) [MD: 0.08 mmol/L, 95% CI (-0.08, 0.24), 95% PI (-0.24, 0.40), P = 0.3150] and triglyceride (TG) [MD: -0.03 mmol/L, 95% CI (-0.23, 0.16), 95% PI (-0.70, 0.63), P = 0.7382]. CONCLUSION Our study determined that SGLT2is increase both LDL-C and HDL-C levels, but exerts not significant effect on TC and TG levels.
Collapse
Affiliation(s)
- Gang Fan
- Cardiology Department of Xianyang Central Hospital, Xianyang, Shaanxi Province, 712000, PR China.
| | - Dian Long Guo
- Cardiology Department of Xianyang First People's Hospital, Xianyang, Shaanxi Province, 712000, PR China
| | - Hong Zuo
- Cardiology Department of Xianyang Central Hospital, Xianyang, Shaanxi Province, 712000, PR China.
| |
Collapse
|
4
|
Dong Y, Lv J, Zuo H, Li Q. The swelling pressure induced by irradiation in ceramic dispersion fuel meat. Progress in Nuclear Energy 2022. [DOI: 10.1016/j.pnucene.2022.104337] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
|
5
|
Tong W, Huang R, Zuo H, Zarabadipour C, Moore A, Hamel D, Letendre L. Feasibility of establishing a veterinary marker to total residue in edible tissues with non-radiolabeled study using high-resolution mass spectrometry. Res Vet Sci 2022; 149:60-70. [PMID: 35753190 DOI: 10.1016/j.rvsc.2022.06.006] [Citation(s) in RCA: 1] [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: 12/14/2021] [Revised: 03/14/2022] [Accepted: 06/08/2022] [Indexed: 11/24/2022]
Abstract
Traditionally, in vivo metabolism and total residue studies in veterinary drug research were conducted using radiolabeled drug where information on metabolite profiles and marker residue to total residue ratio is obtained. The Veterinary International Conference on Harmonisation (VICH) guideline GL46 indicates that the metabolism and residue kinetics in food-producing animals may be documented by an alternative approach, one other than the traditional radiolabeled study. High-resolution mass spectrometry (HRMS) has been widely used in human pharmaceutical R&D from metabolite profiling and identification in early drug discovery to first-in-human (FIH) studies in development. Recent advances in data mining tools have greatly improved the metabolite profiling capability with HRMS. It is now routine to study metabolism using non-radiolabeled samples without missing any major metabolites. In the current paper, we explored the feasibility of conducting non-radiolabeled marker residue studies to obtain metabolism information using HRMS. Metabolite profiles of gamithromycin in edible tissues of sheep treated with 6 mg/kg body weight subcutaneous injections were obtained with HRMS. The semi-quantitative relationship between the level of gamithromycin and the total treatment-related residues was established by determining the percentages of extracted ion chromatograms for metabolites and parent compound residues in each tissue. Major components (gamithromycin and its metabolite, declad) were measured quantitatively using a validated liquid chromatography/tandem mass spectrometry (LC-MS/MS) method. Metabolite profiles in excreta were also obtained and the major components measured quantitatively with a LC-MS/MS method to ensure no major metabolite was missing. Combining previous knowledge of marker residue studies in cattle and swine, as well as an in vitro comparative metabolism study with metabolite data across various species, gamithromycin was designated as the marker residue in sheep edible tissues. The marker to total residue ratios were established using a combination of the semi-quantitative HRMS results and quantitative results with the major components: the marker residue and declad. The pros and cons of the HRMS method as well as the appropriate use of the method for marker residue studies are discussed.
Collapse
Affiliation(s)
- Wei Tong
- Boehringer Ingelheim Animal Health, Drug Safety and DMPK, North Brunswick, NJ 08902, USA.
| | - Rose Huang
- Boehringer Ingelheim Animal Health, Drug Safety and DMPK, North Brunswick, NJ 08902, USA
| | - Hong Zuo
- Boehringer Ingelheim Animal Health, Drug Safety and DMPK, North Brunswick, NJ 08902, USA
| | - Cyrus Zarabadipour
- Boehringer Ingelheim Animal Health, Drug Safety and DMPK, North Brunswick, NJ 08902, USA
| | - Amanda Moore
- Boehringer Ingelheim Animal Health, Drug Safety and DMPK, North Brunswick, NJ 08902, USA
| | - Dietmar Hamel
- Boehringer Ingelheim Vetmedica GmbH, Kathrinenhof Research Center, Rohrdorf, Germany
| | - Laura Letendre
- Boehringer Ingelheim Animal Health, Drug Safety and DMPK, North Brunswick, NJ 08902, USA
| |
Collapse
|
6
|
Wang R, Yuan Z, Li Q, Yang B, Zuo H. Damage evolution of biodegradable magnesium alloy stent based on configurational forces. J Biomech 2021; 122:110443. [PMID: 33933858 DOI: 10.1016/j.jbiomech.2021.110443] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2020] [Revised: 03/29/2021] [Accepted: 04/09/2021] [Indexed: 10/21/2022]
Abstract
Magnesium alloy has attracted most of the recent attention as a candidate for stent material due to their biocompatible and biodegradable nature. However, their corrosion behavior in the human body is still a major issue in research today. In this paper, a strategy to simulate damage evolution in biodegradable magnesium alloy stent is given by introducing a configurational damage model. In the framework of continuum thermodynamics, one can characterize the development and evolution of local damage of materials by establishing internal variables in phenomenological method. We believe that corrosion can damage alloy in two different ways: surface corrosion and stress corrosion. Surface corrosion is described using uniform damage, when the structure is exposed in a corrosion environment; Configurational force is used to describe stress corrosion when the structure is exposed in a stimulating environment. We then select global damage and radial resistance force to perform the changes of macroscopic mechanical properties during stent degradation. Finally, the well performance of the proposed model is demonstrated through several numerical examples. This model has the potential to assist stent design and development in the future.
Collapse
Affiliation(s)
- Rong Wang
- State Key Laboratory of Reliability and Intelligence of Electrical Equipment, Hebei University of Technology, Tianjin 300130, China; School of Mechanical Engineering, Hebei University of Technology, Tianjin 300401, China
| | - Zhongbo Yuan
- State Key Laboratory for Strength and Vibration of Mechanical Structures, School of Aerospace, Xi'an Jiaotong University, Xi'an 710049, China
| | - Qun Li
- State Key Laboratory for Strength and Vibration of Mechanical Structures, School of Aerospace, Xi'an Jiaotong University, Xi'an 710049, China.
| | - Bo Yang
- Department of Thoracic Surgery, Tianjin First Central Hospital, Tianjin Medical University, Tianjin 300192, China
| | - Hong Zuo
- State Key Laboratory for Strength and Vibration of Mechanical Structures, School of Aerospace, Xi'an Jiaotong University, Xi'an 710049, China.
| |
Collapse
|
7
|
Feng J, Niu Y, Zhang Y, Zuo H, Wang S, Liu X. Ficus carica extract impregnated amphiphilic polymer scaffold for diabetic wound tissue regenerations. Artif Cells Nanomed Biotechnol 2021; 49:219-229. [PMID: 33666536 DOI: 10.1080/21691401.2021.1890610] [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] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Diabetes associated injury healing and other tissue irregularities are viewed as a significant concern. The purpose of the study is to design the wound regeneration activity of Ficus carica extract (FFE) loaded amphiphilic polymeric scaffold of poly(xylitol-g-adipate-co-glutamide) (PXAG)-polyhydroxybutyrate (PHB) for potential diabetic affected wound regeneration. The PXAG copolymer was prepared by the condensation method, and the polymeric scaffolds of PXAG-PHB, PXAG-PHB/FFE were developed through the ultra-sonication process and magnetic stirrer processes. The chemical structure, crystalline nature, thermal stability, size, surface charge and surface morphology of PXAG-PHB and PXAG-PHB/FFE polymeric scaffolds were investigated. The PXAG-PHB/FFE exhibits 99.0% free radical scavenging activity which was determined by the DPPH method. The inhibition zones by the PXAG-PHB/FFE indicate it had a higher antibacterial activity with the Escherichia coli (gram-negative) and Staphylococcus aureus (gram-positive) pathogens. The PXAG, PXAG-PHB and PXAG-PHB/FFE polymeric scaffolds exhibited good viability against diabetic induced wound cells (WS1) in 100 μg/mL concentrations up to 72 h incubation. Since the synthesized PXAG-PHB/FFE polymeric scaffolds possess excellent thermal stability, bioactivity, biocompatibility and antioxidant activity along with potent antimicrobial activity, they play a potential role in diabetic wound tissue regenerations.
Collapse
Affiliation(s)
- Jia Feng
- Department of Endocrinology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China.,Department of Endocrinology, Ninth Hospital of Xi'an, Xi'an, China
| | - Yu Niu
- Department of Endocrinology, Ninth Hospital of Xi'an, Xi'an, China
| | - Yi Zhang
- Department of Endocrinology, Ninth Hospital of Xi'an, Xi'an, China
| | - Hong Zuo
- Department of Endocrinology, Ninth Hospital of Xi'an, Xi'an, China
| | - Shujin Wang
- Department of Endocrinology, Ninth Hospital of Xi'an, Xi'an, China
| | - Xufeng Liu
- Department of Endocrinology, Ninth Hospital of Xi'an, Xi'an, China
| |
Collapse
|
8
|
Zuo H, Javadpour F, Deng S, Jiang X, Li Z, Li H. Reassessing water slippage in hydrophobic nanostructures. J Chem Phys 2020; 153:191101. [DOI: 10.1063/5.0030758] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Hong Zuo
- State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan 430071, China
- Bureau of Economic Geology, Jackson School of Geosciences, The University of Texas at Austin, University Station, Box X, Austin, Texas 78713-8924, USA
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Farzam Javadpour
- Bureau of Economic Geology, Jackson School of Geosciences, The University of Texas at Austin, University Station, Box X, Austin, Texas 78713-8924, USA
| | - Shouchun Deng
- State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan 430071, China
| | - Xiaofang Jiang
- State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan 430071, China
- Bureau of Economic Geology, Jackson School of Geosciences, The University of Texas at Austin, University Station, Box X, Austin, Texas 78713-8924, USA
| | - Zhiwen Li
- State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan 430071, China
- Bureau of Economic Geology, Jackson School of Geosciences, The University of Texas at Austin, University Station, Box X, Austin, Texas 78713-8924, USA
| | - Haibo Li
- State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan 430071, China
| |
Collapse
|
9
|
Zuo H, Wang S, Feng J, Liu X. BRD4 contributes to high-glucose-induced podocyte injury by modulating Keap1/Nrf2/ARE signaling. Biochimie 2019; 165:100-107. [DOI: 10.1016/j.biochi.2019.07.012] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2019] [Accepted: 07/12/2019] [Indexed: 01/25/2023]
|
10
|
Li N, Cheng Y, Chen L, Zuo H, Weng Y, Zhou J, Liu H, Peng M, Song Q. Circulating tumour cell detection in epithelial ovarian cancer using dual-component antibodies targeting EpCAM and FRα. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz257.023] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
11
|
Wang S, Li G, Zuo H, Yang H, Ma L, Feng J, Niu Y, Ma L, Liu S, Qi T, Liu X. Association of insulin, C-peptide and blood lipid patterns in patients with impaired glucose regulation. BMC Endocr Disord 2019; 19:75. [PMID: 31307454 PMCID: PMC6631747 DOI: 10.1186/s12902-019-0400-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/08/2017] [Accepted: 04/11/2019] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND To investigate any associations between blood glucose (BG) and lipid levels in patients with different glucose tolerance statuses, including type 2 diabetes (T2DM) and impaired glucose regulation (IGR) cases as well as normal glucose tolerance (NGT) individuals. METHODS A total of 354 participants were recruited to this study including 174 in the T2DM group, 112 in the IGR group and 68 in the NGT group. We compared BG, insulin and C-peptide (CP), total cholesterol (TC), triglyceride (TG), high-density lipoprotein cholesterol (HDL-C) and low-density lipoprotein cholesterol (LDL-C) serum levels during a 3 h oral glucose tolerance test (OGTT) in the 3 groups. RESULTS Basic overall HbA1c serum concentration percentages were 5.52, 6.33 and 9.76% for the NTG, IGR and T2DM cases. During the OGTT, insulin secretion in the IGR group was almost double that of the T2DM group. CP levels were highest in the IGR patients and OGTT related BG concentrations were highest in the T2DM group followed by IGR, but in the IGR group hyperglycemia was less pronounced than in T2DM patients (P < 0.001). Compared to the NGT group, TC, TG and LDL-C serum concentrations were significantly higher (P ≤ 0.001) and HDL-C concentrations were significantly lower (P ≤ 0.001) in IGR and T2DM cases compared to the NTG group. CONCLUSIONS IGR led to similar unfavorable blood lipid patterns compared with T2DM patients and an imbalance of insulin and CP serum concentrations during an OGTT.
Collapse
Affiliation(s)
- Shujin Wang
- Department of Endocrinology, Ninth Hospital of Xi’an, No. 151 South Second Ring Road, Xi’an, Shaanxi 710054 China
| | - Guohong Li
- Department of Endocrinology, Ninth Hospital of Xi’an, No. 151 South Second Ring Road, Xi’an, Shaanxi 710054 China
| | - Hong Zuo
- Department of Endocrinology, Ninth Hospital of Xi’an, No. 151 South Second Ring Road, Xi’an, Shaanxi 710054 China
| | - Hua Yang
- Department of Endocrinology, Ninth Hospital of Xi’an, No. 151 South Second Ring Road, Xi’an, Shaanxi 710054 China
| | - Lei Ma
- Department of Endocrinology, Ninth Hospital of Xi’an, No. 151 South Second Ring Road, Xi’an, Shaanxi 710054 China
| | - Jia Feng
- Department of Endocrinology, Ninth Hospital of Xi’an, No. 151 South Second Ring Road, Xi’an, Shaanxi 710054 China
| | - Yu Niu
- Department of Endocrinology, Ninth Hospital of Xi’an, No. 151 South Second Ring Road, Xi’an, Shaanxi 710054 China
| | - Liming Ma
- Department of Clinical laboratory, Ninth Hospital of Xi’an, No. 151 South Second Ring Road, Xi’an, Shaanxi 710054 China
| | - Songfang Liu
- Department of Endocrinology, Ninth Hospital of Xi’an, No. 151 South Second Ring Road, Xi’an, Shaanxi 710054 China
| | - Ting Qi
- Department of Endocrinology, Ninth Hospital of Xi’an, No. 151 South Second Ring Road, Xi’an, Shaanxi 710054 China
| | - Xufeng Liu
- Department of Endocrinology, Ninth Hospital of Xi’an, No. 151 South Second Ring Road, Xi’an, Shaanxi 710054 China
| |
Collapse
|
12
|
Zuo H, Ueland PM, Midttun Ø, Tell GS, Fanidi A, Zheng W, Shu X, Xiang Y, Wu J, Prentice R, Pettinger M, Thomson CA, Giles GG, Hodge A, Cai Q, Blot WJ, Johansson M, Hultdin J, Grankvist K, Stevens VL, McCullough ML, Weinstein SJ, Albanes D, Ziegler RG, Freedman ND, Caporaso NE, Langhammer A, Hveem K, Næss M, Buring JE, Lee I, Gaziano JM, Severi G, Zhang X, Stampfer MJ, Han J, Zeleniuch-Jacquotte A, Marchand LL, Yuan J, Wang R, Koh W, Gao Y, Ericson U, Visvanathan K, Jones MR, Relton C, Brennan P, Johansson M, Ulvik A. Vitamin B6 catabolism and lung cancer risk: results from the Lung Cancer Cohort Consortium (LC3). Ann Oncol 2019; 30:478-485. [PMID: 30698666 PMCID: PMC6442648 DOI: 10.1093/annonc/mdz002] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND Increased vitamin B6 catabolism related to inflammation, as measured by the PAr index (the ratio of 4-pyridoxic acid over the sum of pyridoxal and pyridoxal-5'-phosphate), has been positively associated with lung cancer risk in two prospective European studies. However, the extent to which this association translates to more diverse populations is not known. MATERIALS AND METHODS For this study, we included 5323 incident lung cancer cases and 5323 controls individually matched by age, sex, and smoking status within each of 20 prospective cohorts from the Lung Cancer Cohort Consortium. Cohort-specific odds ratios (ORs) and 95% confidence intervals (CIs) for the association between PAr and lung cancer risk were calculated using conditional logistic regression and pooled using random-effects models. RESULTS PAr was positively associated with lung cancer risk in a dose-response fashion. Comparing the fourth versus first quartiles of PAr resulted in an OR of 1.38 (95% CI: 1.19-1.59) for overall lung cancer risk. The association between PAr and lung cancer risk was most prominent in former smokers (OR: 1.69, 95% CI: 1.36-2.10), men (OR: 1.60, 95% CI: 1.28-2.00), and for cancers diagnosed within 3 years of blood draw (OR: 1.73, 95% CI: 1.34-2.23). CONCLUSION Based on pre-diagnostic data from 20 cohorts across 4 continents, this study confirms that increased vitamin B6 catabolism related to inflammation and immune activation is associated with a higher risk of developing lung cancer. Moreover, PAr may be a pre-diagnostic marker of lung cancer rather than a causal factor.
Collapse
Affiliation(s)
- H Zuo
- Department of Global Public Health and Primary Care, University of Bergen, Bergen.
| | - P M Ueland
- Department of Clinical Science, University of Bergen, Bergen; Laboratory of Medicine and Pathology, Haukeland University Hospital, Bergen
| | | | - G S Tell
- Department of Global Public Health and Primary Care, University of Bergen, Bergen
| | - A Fanidi
- Genetic Epidemiology Group, International Agency for Research on Cancer, Lyon, France; MRC Epidemiology Unit, University of Cambridge, Cambridge, UK
| | - W Zheng
- Division of Epidemiology, Department of Medicine, Vanderbilt Epidemiology Center, Vanderbilt-Ingram Cancer Center, Vanderbilt University School of Medicine, Nashville, USA
| | - X Shu
- Division of Epidemiology, Department of Medicine, Vanderbilt Epidemiology Center, Vanderbilt-Ingram Cancer Center, Vanderbilt University School of Medicine, Nashville, USA
| | - Y Xiang
- State Key Laboratory of Oncogene and Related Genes & Department of Epidemiology, Shanghai Cancer Institute, Renji Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - J Wu
- Division of Epidemiology, Department of Medicine, Vanderbilt Epidemiology Center, Vanderbilt-Ingram Cancer Center, Vanderbilt University School of Medicine, Nashville, USA
| | - R Prentice
- Division of Public Health Sciences, Fred Hutchinson Cancer Research Center, Seattle
| | - M Pettinger
- Division of Public Health Sciences, Fred Hutchinson Cancer Research Center, Seattle
| | - C A Thomson
- Health Promotion Sciences, Mel and Enid Zuckerman College of Public Health, University of Arizona, Tucson, USA
| | - G G Giles
- Cancer Epidemiology Centre, Cancer Council Victoria, Melbourne; Centre for Epidemiology and Biostatistics, Melbourne School of Population and Global Health, University of Melbourne, Melbourne, Australia
| | - A Hodge
- Cancer Epidemiology Centre, Cancer Council Victoria, Melbourne; Centre for Epidemiology and Biostatistics, Melbourne School of Population and Global Health, University of Melbourne, Melbourne, Australia
| | - Q Cai
- Division of Epidemiology, Department of Medicine, Vanderbilt Epidemiology Center, Vanderbilt-Ingram Cancer Center, Vanderbilt University School of Medicine, Nashville, USA
| | - W J Blot
- Division of Epidemiology, Department of Medicine, Vanderbilt Epidemiology Center, Vanderbilt-Ingram Cancer Center, Vanderbilt University School of Medicine, Nashville, USA
| | - M Johansson
- Department of Radiation Sciences, Oncology, Umeå University, Umeå
| | - J Hultdin
- Department of Medical Biosciences, Clinical Chemistry, Umeå University, Umeå, Sweden
| | - K Grankvist
- Department of Medical Biosciences, Clinical Chemistry, Umeå University, Umeå, Sweden
| | - V L Stevens
- Behavioral and Epidemiology Research Group, American Cancer Society, Atlanta
| | - M L McCullough
- Behavioral and Epidemiology Research Group, American Cancer Society, Atlanta
| | - S J Weinstein
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Bethesda, USA
| | - D Albanes
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Bethesda, USA
| | - R G Ziegler
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Bethesda, USA
| | - N D Freedman
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Bethesda, USA
| | - N E Caporaso
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Bethesda, USA
| | - A Langhammer
- HUNT Research Centre, Department of Public Health and Nursing, Faculty of Medicine and Health Science, NTNU, Norwegian University of Science and Technology, Trondheim, Norway
| | - K Hveem
- HUNT Research Centre, Department of Public Health and Nursing, Faculty of Medicine and Health Science, NTNU, Norwegian University of Science and Technology, Trondheim, Norway
| | - M Næss
- HUNT Research Centre, Department of Public Health and Nursing, Faculty of Medicine and Health Science, NTNU, Norwegian University of Science and Technology, Trondheim, Norway
| | - J E Buring
- Division of Preventive Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston; Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston
| | - I Lee
- Division of Preventive Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston; Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston
| | - J M Gaziano
- Division of Aging, Brigham and Women's Hospital, Boston; VA Boston Healthcare System, Boston, USA
| | - G Severi
- Human Genetics Foundation (HuGeF), Torin, Italy; CESP (U1018 INSERM), Université Paris-Saclay, USQ, Villejuif, France
| | - X Zhang
- Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston
| | - M J Stampfer
- Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston; Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston; Department of Nutrition, Harvard T.H. Chan School of Public Health, Boston
| | - J Han
- Department of Epidemiology, Richard M. Fairbanks School of Public Health, Melvin & Bren Simon Cancer Center, Indiana University, Indianapolis
| | | | - L L Marchand
- Epidemiology Program, University of Hawaii Cancer Center, Honolulu
| | - J Yuan
- Division of Cancer Control and Population Sciences, UPMC Hillman Cancer Center, University of Pittsburgh, Pittsburgh; Department of Epidemiology, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, USA
| | - R Wang
- Division of Cancer Control and Population Sciences, UPMC Hillman Cancer Center, University of Pittsburgh, Pittsburgh
| | - W Koh
- Duke-NUS Medical School, Singapore and Saw Swee Hock School of Public Health, National University of Singapore, Singapore, Singapore
| | - Y Gao
- Department of Epidemiology, Shanghai Cancer Institute, Shanghai Jiaotong University, Shanghai, China
| | - U Ericson
- Department of Clinical Sciences Malmö, Lund University, Lund, Sweden
| | - K Visvanathan
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health and Johns Hopkins Sidney Kimmel Comprehensive Center, School of Medicine, Baltimore, USA
| | - M R Jones
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health and Johns Hopkins Sidney Kimmel Comprehensive Center, School of Medicine, Baltimore, USA
| | - C Relton
- Institute of Genetic Medicine, Newcastle University, Newcastle; MRC Integrative Epidemiology Unit, School of Social & Community Medicine, University of Bristol, Bristol, UK
| | - P Brennan
- Genetic Epidemiology Group, International Agency for Research on Cancer, Lyon, France
| | - M Johansson
- Genetic Epidemiology Group, International Agency for Research on Cancer, Lyon, France
| | | |
Collapse
|
13
|
Zuo H, Zhang Y, Ma Q. Correlation between coronary atherosclerosis calcification and epicardial adipose tissue volume in patients with nephropathy. Exp Ther Med 2018; 16:4669-4673. [PMID: 30546396 PMCID: PMC6256921 DOI: 10.3892/etm.2018.6801] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2018] [Accepted: 08/31/2018] [Indexed: 12/22/2022] Open
Abstract
Correlation between coronary atherosclerosis calcification and epicardial adipose tissue (EAT) volume in patients with nephropathy was investigated. A total of 529 patients with high risk of coronary atherosclerotic nephropathy were selected from August 2013 to September 2016 in Xianyang Central Hospital to serve as research subjects, and their clinical data were retrospectively analyzed. All patients underwent coronary artery and EAT examination using dual-source CT. Correlation between EAT and severity of coronary atherosclerosis, calcification, lesions, and BMI were analyzed. Volume of EAT in patients with atherosclerosis was significantly higher than that in patients without atherosclerosis (p<0.05). EAT volume was positively correlated with BMI (r=0.61, p<0.05), calcification scores (r=0.72, p<0.05) and the number of coronary artery lesions (r=0.64, p<0.05) in patients with nephropathy. Coronary atherosclerosis calcification score, number of lesions and BMI are positively correlated with the EAT volume in patients with nephropathy. Detection of EAT volume may serve as a predictor of the occurrence and develop-ment of coronary atherosclerosis in the future.
Collapse
Affiliation(s)
- Hong Zuo
- Department of Cardiovascular Medicine, Xianyang Central Hospital, Xianyang, Shaanxi 712000, P.R. China
| | - Ying Zhang
- Department of Nephrology, Hanzhong Central Hospital, Hanzhong, Shaanxi 723000, P.R. China
| | - Qiaojuan Ma
- Department of Cardiovascular Medicine, The Central Hospital of Tongchuan Mining Bureau, Tongchuan, Shaanxi 727000, P.R. China
| |
Collapse
|
14
|
Abstract
OBJECTIVE To evaluate the prevalence of breast tenderness in a population treated with menopausal hormone therapy (MHT) or Cimicifuga foetida extract. METHODS A prospective, randomized, controlled trial was conducted. Ninety-six postmenopausal women were randomly assigned to three groups: group A, 1 mg estradiol valerate daily plus 4 mg medroxyprogesterone acetate (MPA), days 19-30; group B, 1 mg estradiol valerate daily plus 100 mg micronized progesterone (MP), days 19-30; group C, 100 mg C. foetida extract daily. Breast tenderness was evaluated daily for 12 months. RESULTS Seventy-three patients completed the study. Group A had the highest prevalence of breast tenderness, while group C had the lowest. More than 50% of all participants reported no symptoms throughout the period. The participants in group A experienced a sharp increase in breast tenderness after treatment, but decreased after 1 month. No significant decline was found in the duration of pain in group B. The patients in group C reported no remarkable changes after 1 month. Compared to estrogen only, estrogen plus MPA/MP led to a higher incidence of prolonged breast symptoms. CONCLUSIONS Compared to MHT groups, C. foetida extract had the lowest prevalence of breast tenderness. Most participants experienced mild or no symptoms.
Collapse
Affiliation(s)
- L Gao
- a Department of Obstetrics and Gynecology , Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences , Beijing , China.,b Department of Obstetrics and Gynecology , Jiaxing Maternity and Child Health Care Hospital, College of Medicine, Jiaxing University , Jiaxing , China
| | - H Zuo
- c Department of Obstetrics and Gynecology , The Second Hospital of Hebei Medical University , Hebei , China
| | - T Zheng
- a Department of Obstetrics and Gynecology , Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences , Beijing , China
| | - W Xue
- a Department of Obstetrics and Gynecology , Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences , Beijing , China
| | - Y Wang
- a Department of Obstetrics and Gynecology , Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences , Beijing , China
| | - Y Deng
- a Department of Obstetrics and Gynecology , Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences , Beijing , China
| | - A Sun
- a Department of Obstetrics and Gynecology , Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences , Beijing , China
| |
Collapse
|
15
|
Zuo H, Nygård O, Ueland PM, Vollset SE, Svingen GFT, Pedersen ER, Midttun Ø, Meyer K, Nordrehaug JE, Nilsen DWT, Tell GS. Association of plasma neopterin with risk of an inpatient hospital diagnosis of atrial fibrillation: results from two prospective cohort studies. J Intern Med 2018; 283:578-587. [PMID: 29573355 DOI: 10.1111/joim.12748] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
BACKGROUND Link between inflammation and atrial fibrillation (AF) has been increasingly recognized. Neopterin, a biomarker of cellular immune activation, may be associated with incident AF. OBJECTIVE To investigate the association between plasma neopterin levels and risk of an inpatient hospital diagnosis of AF, and to evaluate a joint association of neopterin and a nonspecific inflammatory marker C-reactive protein (CRP) in two prospective cohorts. METHODS We performed a prospective analysis from a community-based cohort (the Hordaland Health Study (HUSK), n = 6891), and validated the findings in a cohort of patients with suspected stable angina pectoris (the Western Norway Coronary Angiography Cohort (WECAC), n = 2022). RESULTS In both cohorts, higher plasma levels of neopterin were associated with an increased risk of incident AF after adjustment for age, sex, body mass index, current smoking, diabetes, hypertension and renal function. The multivariable-adjusted hazard ratio (HR) (95% CI) per one SD increment of log-transformed neopterin was 1.20 (1.10-1.32) in HUSK and 1.26 (1.09-1.44) in WECAC. Additional adjustment for CRP did not materially affect the risk association for neopterin. The highest risk of AF was found among individuals with both neopterin and CRP levels above the median (HR: 1.54; 95% CI: 1.16-2.05 in HUSK and HR: 1.67; 95% CI: 1.11-2.52 in WECAC). CONCLUSIONS Our findings indicate an association of plasma neopterin with risk of an inpatient hospital diagnosis of AF, which remains after adjustment for traditional risk factors as well as for CRP. This study highlights a role of cellular immune activation, in addition to inflammation, in AF pathogenesis.
Collapse
Affiliation(s)
- H Zuo
- Department of Global Public Health and Primary Care, University of Bergen, Bergen, Norway
| | - O Nygård
- Department of Clinical Science, University of Bergen, Bergen, Norway.,Department of Heart Disease, Haukeland University Hospital, Bergen, Norway
| | - P M Ueland
- Department of Clinical Science, University of Bergen, Bergen, Norway.,Laboratory of Clinical Biochemistry, Haukeland University Hospital, Bergen, Norway
| | - S E Vollset
- Department of Global Public Health and Primary Care, University of Bergen, Bergen, Norway.,The Norwegian Institute of Public Health, Bergen, Norway
| | - G F T Svingen
- Department of Heart Disease, Haukeland University Hospital, Bergen, Norway
| | - E R Pedersen
- Department of Heart Disease, Haukeland University Hospital, Bergen, Norway
| | | | | | - J E Nordrehaug
- Department of Clinical Science, University of Bergen, Bergen, Norway.,Department of Cardiology, Stavanger University Hospital, Stavanger, Norway
| | - D W T Nilsen
- Department of Clinical Science, University of Bergen, Bergen, Norway.,Department of Cardiology, Stavanger University Hospital, Stavanger, Norway
| | - G S Tell
- Department of Global Public Health and Primary Care, University of Bergen, Bergen, Norway.,Department of Non-communicable Diseases, Norwegian Institute of Public Health, Bergen, Norway
| |
Collapse
|
16
|
Huang X, Ma T, Tian J, Shen L, Zuo H, Hu C, Liao G. wblA, a pleiotropic regulatory gene modulating morphogenesis and daptomycin production in Streptomyces roseosporus. J Appl Microbiol 2018. [PMID: 28621039 DOI: 10.1111/jam.13512] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
AIMS The wblA gene, encoding a homologue of the WhiB family protein, was identified in the sequenced genome of daptomycin producer Streptomyces roseosporus. To explore the function of wblA, we construct wblA disruption strains, complemented strains and overexpression strains to test whether it can affect the production of secondary metabolites and morphogenesis. METHODS AND RESULTS We constructed disruption strains by homologous recombination in S. roseosporus. The disruption mutant of wblA could block aerial mycelium sporulation and enhance the production of daptomycin by 51%. In contrast, overexpression of wblA resulted in significantly decreased the yield of daptomycin. In agreement with it, the transcription of key daptomycin regulatory genes atrA, dptR2 and dptR3 and structural gene dptE remarkably increased in the wblA disruption mutant. CONCLUSIONS wblA plays a key role in control of daptomycin biosynthesis and is essential for sporulation. The disruption of wblA could accumulate the transcription level of some key genes involving in daptomycin biosynthesis. SIGNIFICANCE AND IMPACT OF THE STUDY Daptomycin is an important antibiotic with potent activity against a variety of Gram-positive pathogens. This study demonstrates that valuable improvement in the yield of daptomycin can be achieved through modulating the expression of wblA transcription regulator.
Collapse
Affiliation(s)
- X Huang
- Institute of Modern Biopharmaceuticals, School of Pharmaceutical Sciences, Southwest University, Chongqing, China
| | - T Ma
- Institute of Modern Biopharmaceuticals, School of Pharmaceutical Sciences, Southwest University, Chongqing, China
| | - J Tian
- Institute of Modern Biopharmaceuticals, School of Pharmaceutical Sciences, Southwest University, Chongqing, China
| | - L Shen
- Institute of Modern Biopharmaceuticals, School of Pharmaceutical Sciences, Southwest University, Chongqing, China
| | - H Zuo
- Institute of Modern Biopharmaceuticals, School of Pharmaceutical Sciences, Southwest University, Chongqing, China
| | - C Hu
- Institute of Modern Biopharmaceuticals, School of Pharmaceutical Sciences, Southwest University, Chongqing, China
| | - G Liao
- Institute of Modern Biopharmaceuticals, School of Pharmaceutical Sciences, Southwest University, Chongqing, China
| |
Collapse
|
17
|
Zuo H, Nygård O, Vollset SE, Ueland PM, Ulvik A, Midttun Ø, Meyer K, Igland J, Sulo G, Tell GS. Smoking, plasma cotinine and risk of atrial fibrillation: the Hordaland Health Study. J Intern Med 2018; 283:73-82. [PMID: 28940460 DOI: 10.1111/joim.12689] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
BACKGROUND Cigarette smoking has been identified as a major modifiable risk factor for coronary heart disease and mortality. However, findings on the relationship between smoking and atrial fibrillation (AF) have been inconsistent. Furthermore, findings from previous studies were based on self-reported smoking. OBJECTIVE To examine the associations of smoking status and plasma cotinine levels, a marker of nicotine exposure, with risk of incident AF in the Hordaland Health Study. METHODS We conducted a prospective analysis of 6682 adults aged 46-74 years without known AF at baseline. Participants were followed via linkage to the Cardiovascular Disease in Norway (CVDNOR) project and the Cause of Death Registry. Smoking status was assessed by both questionnaire and plasma cotinine levels. RESULTS A total of 538 participants developed AF over a median follow-up period of 11 years. Using questionnaire data, current smoking (HR: 1.41, 95% CI: 1.09-1.83), but not former smoking (HR: 1.03, 95% CI: 0.83-1.28), was associated with an increased risk of AF after adjustment for gender, age, body mass index, hypertension, physical activity and education. Using plasma cotinine only, the adjusted HR (95% CI) was 1.40 (1.12-1.75) for participants with cotinine ≥85 nmol L-1 compared to those with cotinine <85 nmol L-1 . However, the risk increased with elevated plasma cotinine levels until 1199 nmol L-1 (HR: 1.55, 95% CI: 1.16-2.05 at the third group vs. the reference group) and plateaued at higher levels. CONCLUSIONS Current, but not former smokers, had a higher risk of developing AF. Use of plasma cotinine measurement corroborated this finding.
Collapse
Affiliation(s)
- H Zuo
- Department of Global Public Health and Primary Care, University of Bergen, Bergen, Norway
| | - O Nygård
- Department of Clinical Science, University of Bergen, Bergen, Norway.,Department of Heart Disease, Haukeland University Hospital, Bergen, Norway
| | - S E Vollset
- Department of Global Public Health and Primary Care, University of Bergen, Bergen, Norway.,The Norwegian Institute of Public Health, Bergen, Norway
| | - P M Ueland
- Department of Clinical Science, University of Bergen, Bergen, Norway.,Laboratory of Clinical Biochemistry, Haukeland University Hospital, Bergen, Norway
| | | | | | | | - J Igland
- Department of Global Public Health and Primary Care, University of Bergen, Bergen, Norway
| | - G Sulo
- Department of Global Public Health and Primary Care, University of Bergen, Bergen, Norway
| | - G S Tell
- Department of Global Public Health and Primary Care, University of Bergen, Bergen, Norway.,Domain for Health Data and Digitalization, Norwegian Institute of Public Health, Bergen, Norway
| |
Collapse
|
18
|
Tong W, Zuo H, Zarabadipour C, Mullins A, Hamel D, Huang R, Letendre L. Feasibility of establishing a veterinary marker to total residue in edible tissues using high resolution mass spectrometry. Drug Metab Pharmacokinet 2018. [DOI: 10.1016/j.dmpk.2017.11.146] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
|
19
|
Abstract
OBJECTIVE The aim of this study was to evaluate the efficacy and safety of long-term treatment with Cimicifuga foetida extract in menopausal women. METHODS A prospective, randomized, controlled clinical trial was conducted. A total of 96 early postmenopausal women were randomly assigned to three groups: group A received 1 mg estradiol valerate daily plus 4 mg medroxyprogesterone acetate on days 19-30; group B received 1 mg estradiol valerate daily plus 100 mg micronized progesterone on days 19-30; group C received 100 mg C. foetida extract daily. The efficacy was evaluated. Safety parameters were recorded. RESULTS A total of 81 patients completed the treatment and follow-up visit. The modified Kupperman Menopausal Index scores decreased after 3 months in all groups. No significant changes were observed in the liver, renal function and components of metabolic syndrome in group C (p > 0.05). There were no significant differences in the incidences of metabolic syndrome among the three groups (p > 0.05). After 24 months, the endometrial thickness increased significantly in group B (p = 0.014), but not in the C. foetida extract group (p > 0.05). CONCLUSIONS C. foetida extract is safe and effective for the treatment of menopausal symptoms in postmenopausal women.
Collapse
Affiliation(s)
- L Gao
- a Department of Obstetrics and Gynecology , Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences , Beijing , China.,b Department of Obstetrics and Gynecology , Jiaxing Maternity and Child Health Care Hospital , Jiaxing , China
| | - T Zheng
- a Department of Obstetrics and Gynecology , Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences , Beijing , China
| | - W Xue
- a Department of Obstetrics and Gynecology , Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences , Beijing , China
| | - Y Wang
- a Department of Obstetrics and Gynecology , Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences , Beijing , China
| | - Y Deng
- a Department of Obstetrics and Gynecology , Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences , Beijing , China
| | - H Zuo
- c Department of Obstetrics and Gynecology , The Second Hospital of Hebei Medical University , Hebei , China
| | - A Sun
- a Department of Obstetrics and Gynecology , Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences , Beijing , China
| |
Collapse
|
20
|
Sun X, Zuo H, Liu C, Yang Y. Overexpression of miR-200a protects cardiomyocytes against hypoxia-induced apoptosis by modulating the kelch-like ECH-associated protein 1-nuclear factor erythroid 2-related factor 2 signaling axis. Int J Mol Med 2016; 38:1303-11. [PMID: 27573160 DOI: 10.3892/ijmm.2016.2719] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2015] [Accepted: 08/16/2016] [Indexed: 11/05/2022] Open
Abstract
The kelch-like ECH-associated protein 1 (Keap1)-nuclear factor erythroid 2-related factor 2 (Nrf2) signaling axis plays an important role in regulating oxidative stress in ischemic cardiomyocytes. Targeting Keap1 in order to promote Nrf2 activation is considered a potential method for protecting cardiomyocytes against ischemic injury. In recent years, microRNAs (miRNAs or miRs) have emerged as powerful tools for controlling gene expression. The present study aimed to determine whether Keap1-Nrf2 was regulated by specific miRNAs in cardiomyocytes under hypoxic conditions. We demonstrated that miR-200a was significantly downregulated in ischemic myocardial tissues and hypoxic cardiomyocytes. The overexpression of miR-200a was found to protect cardiomyocytes from hypoxia-induced cell damage and the excessive production of reactive oxygen species. Through bioinformatics analysis and a dual-luciferase report assay, miR-200a was found to interact with the 3'-untranslated region of Keap1, the native regulator of Nrf2. Reverse transcription-quantitative polymerase chain reaction and western blot analysis revealed that miR-200a negatively regulated the expression of Keap1. The overexpression of miR-200a significantly increased the nuclear translocation of Nrf2 as well as downstream antioxidant enzyme gene expression. The inhibition of miR-200a displayed the opposite effects. Restoring the expression of Keap1 significantly abrogated the protective effect of miR‑200a. Taken together, these findings indicate that the suppression of Keap1 by miR-200a exerted a cardioprotective effect against hypoxia-induced oxidative stress and cell apoptosis, and suggest that the activation of Nrf2 signaling by miR‑200a represents a novel and promising therapeutic strategy for the treatment of ischemic heart disease.
Collapse
Affiliation(s)
- Xiaoxia Sun
- Department of Cardiology 3, Xianyang Central Hospital, Xianyang, Shaanxi 712000, P.R. China
| | - Hong Zuo
- Department of Cardiology 3, Xianyang Central Hospital, Xianyang, Shaanxi 712000, P.R. China
| | - Chunmei Liu
- Department of Endocrinology, Xianyang Central Hospital, Xianyang, Shaanxi 712000, P.R. China
| | - Yafeng Yang
- Department of Endocrinology, Xianyang Central Hospital, Xianyang, Shaanxi 712000, P.R. China
| |
Collapse
|
21
|
Qin LM, Qin GM, Shi XH, Wang AL, Zuo H. Association between matrix metalloproteinase-9 rs3918242 polymorphism and development of coronary artery disease in a Chinese population. Genet Mol Res 2016; 15:gmr7632. [PMID: 27323016 DOI: 10.4238/gmr.15027632] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
We conducted a case-control study to investigate the role of one single nucleotide polymorphism of MMP-9 rs3918242 in the development of coronary artery disease. The rs3918242 was amplified with 435-bp DNA fragments using polymerase chain reaction coupled with restriction fragment length polymorphism. When compared with control subjects, patients with coronary artery disease had higher systolic and diastolic blood pressure, as well as higher triglycerides (P < 0.05), were more likely to suffer from diabetes mellitus, and had lower total cholesterol and high-density lipopolysaccharides. Using unconditional logistic analysis, we found that individuals with CT and TT genotypes were associated with increased risk of coronary artery disease in a co-dominant model, and the ORs (95%CI) were 1.50 (1.02-2.20) and 6.89 (2.51-23.41) for CT and TT, respectively. We observed that the T allele of rs3918242 was correlated with increased risk of coronary artery disease (OR = 1.88, 95%CI = 1.39-2.55). In conclusion, we suggest that the TT and CT genotypes and T allele of MMP-9 rs3918242 polymorphism is correlated with an increased risk of coronary artery disease in a Chinese population.
Collapse
Affiliation(s)
- L M Qin
- The First Department of Cardiovascular Internal Medicine, Xianyang Central Hospital of Shaanxi, Xianyang, China
| | - G M Qin
- Department of Digestive Internal Medicine, The First People's Hospital of Xianyang, Xianyang, China
| | - X H Shi
- The First Department of Cardiovascular Internal Medicine, Xianyang Central Hospital of Shaanxi, Xianyang, China
| | - A L Wang
- The First Department of Cardiovascular Internal Medicine, Xianyang Central Hospital of Shaanxi, Xianyang, China
| | - H Zuo
- The First Department of Cardiovascular Internal Medicine, Xianyang Central Hospital of Shaanxi, Xianyang, China
| |
Collapse
|
22
|
Yang Y, Xiao F, Lu Z, Li Z, Zuo H, Zhang Q, Li Q, Wang H, Wang LS. Development of a novel adenovirus-alphavirus hybrid vector with RNA replicon features for malignant hematopoietic cell transduction. Cancer Gene Ther 2013; 20:429-36. [PMID: 23827880 DOI: 10.1038/cgt.2013.37] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2013] [Revised: 05/24/2013] [Accepted: 06/02/2013] [Indexed: 01/06/2023]
Abstract
To improve the expression levels of transgenes in malignant hematopoietic cells, we developed a novel adenoviral-alphavirus hybrid vector Ad5/F11p-SFV-GFP that contains a Semliki Forest Virus (SFV) replicon and chimeric fibers of Ad5 and Ad11p. Ad5/F11p-SFV-GFP infected >95% of K562, U937 or Jurkat cells and 23.65% of HL-60 cells, and led to moderate Enhanced Green Fluorescent Protein (EGFP) transgene expression intensity. The infection efficiency of Ad5/F11p-SFV-GFP in primary human leukemia cells ranged from 9.34-89.63% (median, 28.58%) at a multiplicity of infection (MOI) of 100, compared with only 3.37-44.54% (median, 10.42%) in cells infected by Ad5/F11p-GFP. Importantly, Ad5/F11p-SFV-GFP led to a significantly higher transgene expression level in primary leukemia cells, as indicated by the relative fluorescence intensity, compared to cells infected with Ad5/F11p-GFP. The increased expression of EGFP in Ad5/F11p-SFV-GFP-infected cells was associated with the accumulation of abundant subgenomic mRNA. Additionally, infection of K562, U937 or Jurkat cells by Ad5/F11p-SFV-GFP was significantly inhibited by blocking CD46 receptor; however, other factors may affect the gene-transfer efficiency of Ad5/F11p-SFV-GFP in primary leukemia cells. In conclusion, we successfully developed a novel adenoviral-alphavirus hybrid vector with RNA replicon features, which represents a promising vector for gene modifications during the production of cell-based vaccines for leukemia patients.
Collapse
Affiliation(s)
- Y Yang
- Department of Experimental Hematology, Beijing Institute of Radiation Medicine, Beijing, People's Republic of China
| | | | | | | | | | | | | | | | | |
Collapse
|
23
|
Abstract
This study investigated the effects of berberine, a natural alkaloid, on doxorubicin-induced cardiotoxicity in mice. Mice were injected intraperitoneally with saline 10 ml/kg (n = 10), doxorubicin 2.5 mg/kg (n = 10), 60 mg/kg berberine 1 h before doxorubicin 2.5 mg/kg (n = 10), or 60 mg/kg berberine alone (n = 10) every other day for 14 days. Body weight, general condition and mortality were recorded over the 14-day study period. Electro cardiography was performed before the start of treatment and after 14 days and plasma lactate dehydrogenase (LDH) activity was measured after 14 days. At the end of the study period the heart was excised and examined histologically. An increase in mortality, an initial decrease in body weight, increased LDH activity, prolongation of QRS duration and increased myocardial injury were seen in the doxorubicin-treated group compared with the saline control group. These changes were significantly attenuated by pretreatment with berberine. The study suggests that berberine may have a potential protective role against doxorubicin-induced cardiotoxicity in mice.
Collapse
Affiliation(s)
- X Zhao
- School of Pharmaceutical Sciences, Southwest University, BeiBei District, Chongqing, China
| | | | | | | | | | | | | | | |
Collapse
|
24
|
Wu H, Wang D, Shu Z, Zhou H, Zuo H, Wang S, Li Y, Xu X, Li N, Peng R. Cytokines produced by microwave-radiated Sertoli cells interfere with spermatogenesis in rat testis. Andrologia 2011; 44 Suppl 1:590-9. [PMID: 22211786 DOI: 10.1111/j.1439-0272.2011.01232.x] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Microwave radiation resulted in degeneration, apoptosis or necrosis in germ cells at different stages. The molecular mechanisms by which microwaves induce spermatogenesis disorder have not been completely understood. Sertoli cells play crucial roles in mammalian spermatogenesis. Cytokines produced by Sertoli cells play pleiotropic roles in different conditions. At physiologically low concentration, TNFα, IL-1β and IL-6 behave as survival factors; while under pathological condition, these cytokines can induce apoptosis in testis. The effects of cytokines produced by microwave-radiated Sertoli cells on spermatogenesis are poorly understood. The purpose of this study was to determine the effect of cytokines produced by microwave-radiated Sertoli cells on the germ cells. We focused the effect of TNFα, IL-1β and IL-6 on the germ cells. The results showed that TNFα, IL-1β and IL-6 were increased in Sertoli cells after exposure to microwave radiation. These up-regulated cytokines can induce apoptosis and lipid peroxidation in the membrane of germ cells. In addition, germ cell apoptosis was associated with the up-regulation of Bax/Bcl-2 and caspase-3. These results suggest that cytokines produced by microwave-radiated Sertoli cells may disrupt spermatogenesis. Our data provided novel insight into the injury mechanism of germ cells induced by microwave radiation.
Collapse
Affiliation(s)
- H Wu
- Beijing Institute of Radiation Medicine, Beijing, China
| | | | | | | | | | | | | | | | | | | |
Collapse
|
25
|
Zuo H, Shi Z, Hu X, Wu M, Guo Z, Hussain A. Diabetes, impaired fasting glucose and their relations to plasma pro-inflammatory cytokines: a population-based study in China. Diabet Med 2010; 27:1461-3. [PMID: 21059101 DOI: 10.1111/j.1464-5491.2010.03122.x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
26
|
Shi Z, Yuan B, Qi L, Dai Y, Zuo H, Zhou M. Zinc intake and the risk of hyperglycemia among Chinese adults: the prospective Jiangsu Nutrition Study (JIN). J Nutr Health Aging 2010; 14:332-5. [PMID: 20306008 DOI: 10.1007/s12603-010-0075-0] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
OBJECTIVE To prospectively examine the associations between zinc intake, the zinc to heme iron ratio and the incidence of hyperglycemia in Chinese. METHODS We followed 1056 healthy adults aged 20 and older from 2002 to 2007. Dietary data were collected using 3-day food record and food frequency questionnaire. Hyperglycemia was defined as fasting plasma glucose > 5.6 mmol/l. RESULTS During the 5 years of follow-up, we documented 125 incident cases of hyperglycemia. Zinc intake alone was not associated with the risk of hyperglycemia. The zinc to heme iron ratio was inversely associated with the risk of hyperglycemia: odds ratios (OR, 95% CI) across increasing quartiles of the zinc to heme iron ratio were 1.00, 0.78(0.44-1.37), 0.40(0.19-0.83), and 0.21(0.08-0.54)(p for trend= 0.001). Adjustment for lifestyle covariates did not significantly change the associations. CONCLUSIONS This cohort study suggests that the zinc to heme iron intake ratio was significantly associated with a decreased risk of hyperglycemia in Chinese adults.
Collapse
Affiliation(s)
- Z Shi
- Nutrition and Foodborne Disease Prevention, Jiangsu Provincial Center for Disease Control and Prevention, Nanjing, China.
| | | | | | | | | | | |
Collapse
|
27
|
He JX, Zuo H, Wen LY. [Use and protection effects of hearing protection devices]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2010; 28:206-208. [PMID: 20635697] [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: 05/29/2023]
|
28
|
Deb TB, Coticchia CM, Barndt R, Zuo H, Dickson RB, Johnson MD. Pregnancy-upregulated nonubiquitous calmodulin kinase induces ligand-independent EGFR degradation. Am J Physiol Cell Physiol 2008; 295:C365-77. [PMID: 18562482 DOI: 10.1152/ajpcell.00449.2007] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
We describe here an important function of the novel calmodulin kinase I isoform, pregnancy-upregulated nonubiquitous calmodulin kinase (Pnck). Pnck (also known as CaM kinase Ibeta(2)) was previously shown to be differentially overexpressed in a subset of human primary breast cancers, compared with benign mammary epithelial tissue. In addition, during late pregnancy, Pnck mRNA was shown to be strongly upregulated in epithelial cells of the mouse mammary gland exhibiting decreased proliferation and terminal differentiation. Pnck mRNA is also significantly upregulated in confluent and serum-starved cells, compared with actively growing proliferating cells (Gardner HP, Seung HI, Reynolds C, Chodosh LA. Cancer Res 60: 5571-5577, 2000). Despite these suggestive data, the true physiological role(s) of, or the signaling mechanism(s) regulated by Pnck, remain unknown. We now report that epidermal growth factor receptor (EGFR) levels are significantly downregulated in a ligand-independent manner in human embryonic kidney-293 (HEK-293) cells overexpressing Pnck. MAP kinase activation was strongly inhibited by EGFR downregulation in the Pnck-overexpressing cells. The EGFR downregulation was not the result of reduced transcription of the EGFR gene but from protea-lysosomal degradation of EGFR protein. Knockdown of endogenous Pnck mRNA levels by small interfering RNA transfection in human breast cancer cells resulted in upregulation of unliganded EGFR, consistent with the effects observed in the overexpression model of Pnck-mediated ligand-independent EGFR downregulation. Pnck thus emerges as a new component of the poorly understood mechanism of ligand-independent EGFR degradation, and it may represent an attractive therapeutic target in EGFR-regulated oncogenesis.
Collapse
Affiliation(s)
- Tushar B Deb
- Dept. of Oncology, Lombardi Comprehensive Cancer Center, Georgetown Univ. Medical Center, New Research Bldg., W412, 3970 Reservoir Rd., NW, Washington, DC 20057, USA.
| | | | | | | | | | | |
Collapse
|
29
|
Ren FL, Guo X, Zhang RJ, Wang SJ, Zuo H, Zhang ZT, Geng D, Yu Y, Su M. Effects of selenium and iodine deficiency on bone, cartilage growth plate and chondrocyte differentiation in two generations of rats. Osteoarthritis Cartilage 2007; 15:1171-7. [PMID: 17490897 DOI: 10.1016/j.joca.2007.03.013] [Citation(s) in RCA: 58] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/03/2006] [Accepted: 03/16/2007] [Indexed: 02/02/2023]
Abstract
OBJECTIVE The purpose of the current study was to investigate the roles of combined selenium and iodine deficiency in bone development as a possible experimental model of Kashin-Beck osteoarthropathy. METHODS Sprague-Dawley rats (n=48) were randomly divided into selenium deficiency (-Se+I), iodine deficiency (+Se-I), combined selenium and iodine deficiency (-Se-I), and selenium and iodine sufficient (+Se+I) groups. Growth of bone and cartilage, and the expression of type X collagen (ColX) and parathyroid hormone-related peptide (PTHrP) were measured in two generations of rats (F(0) and F(1)). RESULTS The tibial length in -Se-I rats was significantly shorter in F(1) generation. In +Se-I of F(1) rats, the thickness of the growth plate cartilage, and the proliferative zone was smaller, while in -Se-I rats the growth plate, and the proliferative and hypertrophic zones were also thinner in F(1) generation. In articular cartilage, ColX expression was increased in the deep zone in -Se-I rats of F(0) generation, and in -Se+I, +Se-I and -Se-I rats of F(1) generation. PTHrP expression was increased in the middle zone of -Se+I, +Se-I and -Se-I rats of both F(0) and F(1) generations. In the growth plate cartilage, ColX and PTHrP were expressed in the hypertrophic zone. ColX expression was significantly weaker in -Se+I and -Se-I rats in both F(0) and F(1) generations, while PTHrP expression was stronger in -Se+I, +Se-I and -Se-I rats in both F(0) and F(1) animals. CONCLUSIONS Combined selenium and iodine deficiency impaired the growth of bone and cartilage. The changes in the expression of ColX and PTHrP induced by combined selenium and iodine deficiency were compatible to measurements of ColX and PTHrP in Kashin-Beck osteoarthropathy.
Collapse
Affiliation(s)
- F L Ren
- Department of Public Health, Xi'an Jiaotong University School of Medicine, Xi'an, Shannxi 710061, PR China
| | | | | | | | | | | | | | | | | |
Collapse
|
30
|
|
31
|
Zuo H, Tang W, Yasuoka H, Nakamura Y, Ito Y, Miyauchi A, Kakudo K. A review of 227 cases of small papillary thyroid carcinoma. Eur J Surg Oncol 2007; 33:370-5. [PMID: 17071044 DOI: 10.1016/j.ejso.2006.09.024] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2006] [Accepted: 09/21/2006] [Indexed: 11/30/2022] Open
Abstract
AIMS To review differences in biological aggressiveness, clinical behaviors or selected surgical treatments between the PMC and the slightly larger PTC of 1.0<T<or=2.0 cm. METHODS Two hundred and twenty-seven cases of papillary thyroid carcinoma not larger than 2.0 cm, diagnosed and treated at the Kuma Hospital, Kobe, Japan, with a 10-year follow-up from 1992 to 2003, were reviewed. RESULTS The small PTCs demonstrated excellent outcomes, and persistent/recurrent disease was identified in only nine patients (4%). None of the patients died of the disease. A multivariate analysis revealed that massive extrathyroidal extension at presentation was the only independent prognostic factor for locoregional recurrence. Subdivision into PMCs and slightly larger tumors (1<T<or=2 cm) did not affect the excellent outcomes, but the patients in the latter subgroup received more lymph node surgery and displayed more aggressive clinico-histological features such as higher rates of extrathyroidal extension, lymph node metastasis, loss of polarity, invasive growth pattern and loss of cohesiveness. CONCLUSIONS Small PTC not larger than 2.0 cm could be considered as favorable a prognosis as PMC.
Collapse
Affiliation(s)
- H Zuo
- Department of Pathology, Wakayama Medical University, Kimiidera 811-1, Wakayama 641-8509, Japan
| | | | | | | | | | | | | |
Collapse
|
32
|
Zuo H, Guo X, Wang SJ, Shi ZL, Peng SQ, Cao JL, Zhang ZT. [Toxic effect of butenolide on chondrocyte differentiation and the protective effect of selenium]. Zhongguo Yi Xue Ke Xue Yuan Xue Bao 2006; 28:382-5. [PMID: 16900639] [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: 05/11/2023]
Abstract
OBJECTIVE To study the effect of butenolide (BUT) on cultured chondrocytes differentiation and the possible protective effects of selenium (Se). METHODS Ex-vivo cultured chondrocytes were divided into six groups: (1) Control group (without BUT and Se); (2) Se 0.1 microg/ml control group; (3) BUT 0.1 microg/ml group; (4) BUT 1.0 microg/ml group; (5) BUT 5.0 microg/ml group; and (6) BUT 1.0 microg/ml + Se 0.1 microg/ml group. The expression of collagen II (Col II), collagen X (ColX), basic fibroblast growth factor (bFGF), and parathyroid hormone-related peptide (PTHrP) in (or around) chondrocytes in all groups were analyzed by immunohistochemistry. RESULTS The expressions of Col II in 1.0 microg/ml BUT group and 5.0 microg/ml BUT group were significantly lower than those in the control group (P < 0.05). The expression of Col II in 1.0 microg/ml BUT + Se group were significantly higher than those in the 1.0 microg/ml BUT group and 5.0 microg/ml BUT group (P < 0.05). The expressions of bFGF and PTHrP of BUT groups were significantly higher than those in the Se and control groups (P < 0.05). No expression of ColX was observed in all groups. CONCLUSION BUT can affect the collagen II synthesis of the chondrocytes. Selenium supplementation may play a protective role.
Collapse
Affiliation(s)
- Hong Zuo
- Institute of Pharmacology and Toxicology, Academy of Military Medical Sciences, Beijing 100850
| | | | | | | | | | | | | |
Collapse
|
33
|
Zuo H, Guo X, Kang LL, Ping ZG, Zhang BD, Wang SJ, Lai JH, Geng D. [Analysis of allele frequencies of 6 short tandem repeat loci on chromosome 12 in patients with Kashing-Beck disease]. Nan Fang Yi Ke Da Xue Xue Bao 2006; 26:414-7. [PMID: 16624740] [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: 05/08/2023]
Abstract
OBJECTIVE To analyze the allele frequencies of 6 STR loci (D12S358, D12S1675, D12S1663, D12S1697, D12S16725 and D12S1613) on chromosome 12 among KBD patients and residents in the KBD and non-KBD areas. METHODS EDTA-blood samples were collected from 146 unrelated Chinese Han individuals in Shaanxi Province including 57 KBD patients, 48 control subjects living in the Kashing-Beck disease(KBD) area and 48 in the non-KBD area. The DNA samples were extracted and amplified by PCR, and the PCR products were analyzed by ABI 3100 Genetic Analyzer. RESULTS In KBD patients, the allele number for the 6 STR loci (D12S358, D12S1675, D12S1663, D12S1697, D12S16725 and D12S1613) was 7, 7, 7, 10, 12 and 8, and the genotype number were 13, 12, 9, 17, 19 and 10, respectively; in the residents in KBD area, the allele number was 7, 5, 7, 9, 13 and 9, and the genotype number 12, 10, 12, 19, 16 and 8; in residents in non-KBD area, the allele number was 7, 5, 5, 12, 8 and 9, and the genotype number 17, 16, 8, 22, 14 and 8. There were significant differences in the allele frequencies in the D12S1725 loci between KBD patients and residents living in KBD area (P=0.0119) and the non-KBD area (P=0.0050), but no significant difference in other 5 loci among the 3 groups. CONCLUSION KBD patients have significantly different allele distribution patterns in the D12S1725 loci from the control subjects.
Collapse
Affiliation(s)
- Hong Zuo
- Key Laboratory of Environment and Genes Related to Diseases of Ministry of Education, Xi'an Jiaotong University, Xi'an 710061, China.
| | | | | | | | | | | | | | | |
Collapse
|
34
|
Wang SJ, Guo X, Zuo H, Zhang YG, Xu P, Ping ZG, Zhang Z, Geng D. Chondrocyte apoptosis and expression of Bcl-2, Bax, Fas, and iNOS in articular cartilage in patients with Kashin-Beck disease. J Rheumatol 2006; 33:615-9. [PMID: 16511931] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
OBJECTIVE Kashin-Beck disease (KBD) is a chronic, endemic osteochondropathy principally occurring in children. We investigated apoptotic chondrocyte death and the expression of Bcl-2, Bax, Fas, and inducible nitric oxide synthase (iNOS) in articular cartilage from patients with KBD in order to determine the pathogenesis of chondronecrosis in KBD. METHODS Samples of articular cartilage were divided into 2 groups: control children (15 samples from 15 cases), and children with KBD (15 samples from 15 cases). KBD patients were diagnosed according to "Pathological Criteria to Diagnose KBD in China." Chondrocyte apoptosis was detected by TUNEL staining, and Bcl-2, Bax, Fas, and iNOS-positive articular chondrocytes were stained by immunohistochemistry. Articular cartilage was classified in 3 zones, and positive findings were counted by light microscopy for cytoplasmic staining by polyclonal antibodies of Bcl-2, Bax, Fas, and iNOS and apoptotic chondrocytes by TUNEL. RESULTS The percentage of positive apoptotic chondrocytes stained by TUNEL in the middle zone of articular cartilage from the KBD patient group (33.60% +/- 2.71%) was higher than that of controls (1.33% +/- 0.41%; p < 0.01). The percentages of chondrocytes staining for Bcl-2, Bax, Fas, and iNOS in KBD patients were significantly higher than in controls (p < 0.01); the remarkable difference in Bcl-2, Bax, Fas, and iNOS expression among the upper, middle, and deep cartilage zones was also seen in KBD articular cartilage (p < 0.01); and staining for Bcl-2, Bax, Fas, and iNOS in KBD patients was prominent in the upper zone (41.93% +/- 12.26%, 45.60% +/- 15.78%, 53.60% +/- 16.49%, 45.47% +/- 14.02%, respectively) and the middle zone (14.93% +/- 3.50%, 13.87% +/- 4.32%, 23.27% +/- 4.83%, 21.67% +/- 6.82%) of articular cartilage. CONCLUSION The apoptotic chondrocytes and Bcl-2, Bax, Fas, and iNOS-positive chondrocytes were significantly more numerous in patients with KBD than in controls.
Collapse
Affiliation(s)
- Shi Jie Wang
- Key Laboratory of Environment and Gene Related Diseases, Xi-an Jiaotong University, Ministry of Education, Shaanxi Province, China
| | | | | | | | | | | | | | | |
Collapse
|
35
|
Kiyomiya KI, Lee MS, Tseng IC, Zuo H, Barndt RJ, Johnson MD, Dickson RB, Lin CY. Matriptase activation and shedding with HAI-1 is induced by steroid sex hormones in human prostate cancer cells, but not in breast cancer cells. Am J Physiol Cell Physiol 2006; 291:C40-9. [PMID: 16467405 DOI: 10.1152/ajpcell.00351.2005] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Matriptase and its cognate inhibitor, hepatocyte growth factor activator inhibitor-1 (HAI-1), have been implicated in carcinoma onset and malignant progression. However, the pathological mechanisms of matriptase activation are not defined. Steroid sex hormones play crucial roles in prostate and breast cancer. Therefore, we investigated the questions of whether and how steroid sex hormones regulate matriptase activation in these cancer cells. Treatment of cells with 17beta-estradiol had no effect on activation of matriptase in hormone-starved breast cancer cells, in part due to their high constitutive level of activated matriptase. In striking contrast, very low levels of activated matriptase were detected in hormone-starved lymph node prostatic adenocarcinoma (LNCaP) cells. Robust activation of matriptase was observed as early as 6 h after exposure of these cells to 5alpha-dihydrotestosterone (DHT). Activation of matriptase was closely followed by shedding of the activated matriptase with >90% of total activated matriptase present in the culture media 24 h after DHT treatment. Activated matriptase was shed in a complex with HAI-1 and may result from simultaneously proteolytic cleavages of both membrane-bound proteins. Latent matriptase and free HAI-1 were also shed into culture media. As a result of shedding, the cellular levels of matriptase and HAI-1 were significantly reduced 24 h after exposure to DHT. DHT-induced matriptase activation and shedding were significantly inhibited by the androgen antagonist bicalutamide, by the RNA transcription inhibitor actinomycin D, and by the protein synthesis inhibitor cycloheximide. These results suggest that in LNCaP cells, androgen induces matriptase activation via the androgen receptor, and requires transcription and protein synthesis.
Collapse
Affiliation(s)
- Ken-ichi Kiyomiya
- Department of Toxicology, Osaka Prefecture University, Graduate School of Verterinary Medicine, Sakai, Osaka, Japan
| | | | | | | | | | | | | | | |
Collapse
|
36
|
Guo X, Zuo H, Cao CX, Zhang Y, Geng D, Zhang ZT, Zhang YG, von der Mark K, von der Mark H. Abnormal expression of Col X, PTHrP, TGF-beta, bFGF, and VEGF in cartilage with Kashin-Beck disease. J Bone Miner Metab 2006; 24:319-28. [PMID: 16816927 DOI: 10.1007/s00774-006-0690-3] [Citation(s) in RCA: 56] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/04/2005] [Accepted: 02/08/2006] [Indexed: 10/24/2022]
Abstract
The purpose of the current study was to investigate the abnormal expression of Col X, PTHrP, TGF-beta, bFGF, and VEGF in cartilage from patients with Kashin-Beck disease (KBD) to understand the pathogenesis of chondronecrosis in KBD. Articular cartilage and growth plate cartilage collected were divided into four groups: control children (8 samples, 5 cases), KBD children (19 samples, 9 cases), control adults (8 samples, 6 cases), and KBD adults (16 samples, 15 cases). The presence of PTHrP, TGF-beta1, bFGF, VEGF, and collagen X in articular cartilage and in growth plate cartilage was analyzed by immunohistochemistry. Articular cartilage and growth plate were each divided in three zones, and the rate of positive cells was counted by light microscope for cytoplasmic and pericellular staining. Results showed that (1) in KBD children, Col X expression was lower in the deep zone of growth plate cartilage than in normal children; in articular cartilage of KBD adults, however, collagen X expression was higher in the middle zone compared to the controls; (2) staining for bFGF, PTHrP, TGF-beta1, and VEGF in KBD adult patients was prominent in the chondrocyte clusters and the eroded surface of articular cartilage, and the percentage of chondrocyte staining was significantly higher than in control samples (t = 3.64-10.34, df = 12 for children and 19 for adults, P = 0.002-0.0001); and (3) the enhanced PTHrP, TGF-beta1, and VEGF staining in the deep and middle zone of KBD articular cartilage correlated with the high incidence of chondronecrosis in the middle zone (48.5% +/- 10.2%) and deep zone (70.6% +/- 27.0%) of adult KBD cartilage. In conclusion, Col X expression was reduced in areas of chondrocyte necrosis in the deep zone of KBD articular cartilage, indicating changes in terminal chondrocyte differentiation. PTHrP, TGF-beta1, and VEGF expression was significantly altered and indicated degenerative changes in KBD cartilage, which initially resemble those occurring in osteoarthritis, but lead eventually to chondronecrosis, an event not observed in osteoarthritis.
Collapse
Affiliation(s)
- Xiong Guo
- Institute of Endemic Diseases, Medical College of Xi'an Jiaotong University, No.76 Yanta West Road, Xi'an, Shannxi, 710061, China.
| | | | | | | | | | | | | | | | | |
Collapse
|
37
|
Kang LL, Guo X, Ping ZG, Zuo H, Lai JH, Zhang BD, Geng D, Chen T. [Analysis of genetic polymorphism of 7 STR loci on chromosome 12 in Shaanxi Han populations]. Yi Chuan 2005; 27:869-72. [PMID: 16378930] [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: 05/05/2023]
Abstract
To analyze the genetic polymorphism of 7 STR loci (D12S1718,D12S1675, D12S358, D12S367, D12S1638, D12S1646 and D12S1682) on chromosome 12 in Shaanxi Hans. EDTA-blood specimens were collected from 80 unrelated individuals from Chinese Han population in Shaanxi province. The DNA samples were extracted and relevant fragments were amplified by polymerase chain reaction (PCR). The PCR products were analyzed by ABI 3100 Genetic Analyzer. The number of alleles and genotypes observed at loci D12S1718, D12S1675, D12S358, D12S367, D12S1638, D12S1646 and D12S1682 were 7, 10, 8, 8, 6, 9, 11 for alleles and 10, 17, 18, 18, 14, 18, and 26 for genotypes, respectively. The heterozygosities for the 7 STR loci were 44.28%, 66.10%, 78.89%, 77.89%, 73.69%, 74.55% and 82.39%, respectively. The distribution of allele frequencies of 7 STR loci on chromosome 12 was consistent with Hardy-Weinberg equilibrium and relatively high genetic polymorphism was observed in Shaanxi Han population.
Collapse
Affiliation(s)
- Long-Li Kang
- Key laboratory of Environment and Genes Related to Diseases, Xi'an Jiaotong University Ministry of Education, Xi'an Shaanxi 710061, China.
| | | | | | | | | | | | | | | |
Collapse
|
38
|
Kang LL, Guo X, Zuo H, Ping ZG, Zhang BD, Lai J, Geng D. [Analysis on allele frequencies of 7 short tandem repeat loci of Kashing-Beck disease patients on]. Zhonghua Liu Xing Bing Xue Za Zhi 2005; 26:790-3. [PMID: 16536306] [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: 05/07/2023]
Abstract
OBJECTIVE To analyze the allele frequencies of 7 short tandem repeat (STR) loci (D12S1718, D12S1675, D12S358, D12S367, D12S1638, D12S1646 and D12S1682) on chromosome 12 among Kashing-Beck disease (KBD) patients and the control population living in the KBD areas and non-KBD area. METHODS EDTA-blood specimens were collected from 102 unrelated individuals of Chinese Han population in Shaanxi province including 29 KBD patients,30 controls living in the KBD area and 43 living in the non-KBD area. DNA samples were extracted using the Wizard Genomic DNA purification kit (http://www. Promega. com) and were amplified by polymerase chain reaction (PCR) technique. The PCR products were analyzed by ABI 3100 Genetic Analyzer. RESULTS (1) In KBD patients group, the allele number for 7 STR loci were 4,7,7,8,5,5 and 7, the genotype number were 5,12,13,11,10,9 and 13; (2) In the control population living in KBD area, the allele number for 7 STR loci were 4,9,7,6,6,6 and 8,t he genotype number were 5,10,12,14,12,9 and 13;(3) In the control population living in the non-KBD area, the allele number for 7 STR loci were 7,9,7,7,5,8 and 11, the genotype number were 9,16, 17,16,12,15 and 20;(4) Compared with the allele frequencies among three groups, there were significant differences between KBD patients and the controls living in the KBD area (D12S367: P = 0.034; D12S1638: P = 0.041) and the controls living in the non-KBD area (D12S367: P = 0. 029; D12S1638: P= 0 .028) in the D12S367 and D12S1638 loci; (5) There were significant differences among KBD patients (P = 0.036), controls living in the KBD area (P = 0.039) and controls living in the non-KBD area in the D12S1646. CONCLUSION There was significant difference between KBD patients and the controls in the D12S367 and D12S1638 loci.
Collapse
Affiliation(s)
- Long-li Kang
- The State Key Laboratory of Environment and Disease Gene, Institute of Endemic Disease, Xi 'an Jiaotong University, Xi 'an 710061, China
| | | | | | | | | | | | | |
Collapse
|
39
|
Wang SJ, Guo X, Zuo H, Zhang YG, Xu P, Ping ZG, Zhang ZT, Geng D. [Chondrocyte apoptosis and the expression of Bcl-2, Bax, Fas and iNos in articular cartilage in Kashin-Beck disease]. Di Yi Jun Yi Da Xue Xue Bao 2005; 25:643-6. [PMID: 15958298] [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: 05/03/2023]
Abstract
OBJECTIVE To investigate the characteristics of chondrocyte apoptosis and distribution of Bcl-2, Bax, Fas and iNos expressions in articular cartilage in Kashin-Beck disease (KBD). METHODS Samples of articular cartilage were collected from 15 healthy children and 15 children with KBD diagnosed according to the Pathological Criteria of KBD Diagnosis in China. Chondrocyte apoptosis was detected by TUNEL method, and the articular chondrocytes positive for Bcl-2, Bax, Fas and iNos were stained by B-SA immunohistochemistry. RESULTS The percentage of apoptotic chondrocytes positively stained by TUNEL in the middle layer of articular cartilage was significantly higher in KBD children than in the control group (33.60%+/-2.71% vs 1.33%+/-0.41%, t=11.59, P<0.01). Significant difference in Bcl-2, Bax, Fas and iNos expressions was observed between the upper, middle and deep layers of the articular cartilage of KBD children (F =73.49-114.42, P<0.01), and staining for Bcl-2, Bax, Fas and iNos in KBD children was prominent in the upper layer (41.93%+/-12.26%, 45.60%+/-15.78%, 53.60%+/-16.49%, and 45.47%+/-14.02%, respectively) and the middle layer (14.93%+/-3.50%, 13.87%+/-4.32%, 23.27%+/-4.83%, and 21.67%+/-6.82%, respectively) of the articular cartilage; the percentages of chondrocytes positively stained for Bcl-2, Bax, Fas and iNos were significantly higher than those of the control group (t=11.75-18.65, P<0.01). CONCLUSION The percentages of apoptotic chondrocytes and chondrocytes positive for Bcl-2, Bax, Fas and iNos in the articular cartilage of children with KBD are significantly higher than those in healthy children.
Collapse
Affiliation(s)
- Shi-jie Wang
- Key Laboratory of Environment and Genes Related Diseases, Institute of Environment and Endemic Diseases of State Ministry of Education, Xi'an Jiaotong University, Xi'an 710061, China.
| | | | | | | | | | | | | | | |
Collapse
|
40
|
Johnson MD, Zuo H, Lee KH, Trebley JP, Rae JM, Weatherman RV, Desta Z, Flockhart DA, Skaar TC. Pharmacological characterization of 4-hydroxy-N-desmethyl tamoxifen, a novel active metabolite of tamoxifen. Breast Cancer Res Treat 2004; 85:151-9. [PMID: 15111773 DOI: 10.1023/b:brea.0000025406.31193.e8] [Citation(s) in RCA: 338] [Impact Index Per Article: 16.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
The antiestrogen tamoxifen is extensively metabolized in patients to form a series of compounds with altered affinity for estrogen receptors (ERs), the primary target of this drug. Furthermore, these metabolites exhibit a range of partial agonist and antagonist activities for ER mediated effects that do not depend directly on their absolute affinity for ERs. Thus, clinical response to tamoxifen therapy is likely to depend on the aggregate effect of these different metabolites resulting from their abundance in the patient, their affinity for the receptors, and their agonist/antagonist profile. A recent study has shown that plasma concentrations of the tamoxifen metabolite 4-hydroxy- N -desmethyl tamoxifen (endoxifen), in patents undergoing tamoxifen therapy, are dependent on the cytochrome p450 (CYP) 206 ge notype of the patient and that medications commonly prescribed to patients on tamoxifen therapy can also inhibit endoxifen production. In this study we characterized the properties of this metabolite with respect to binding to ERs, ability to inhibit estrogen stimulated breast cancer cell proliferation and the regulation of estrogen responsive genes. We demonstrate that endoxifen has essentially equivalent activity to the potent metabolite 4-hydroxy tamoxifen (4-OH-tam) often described as the active metabolite of this drug. Since plasma levels of endoxifen in patients with functional CYP2D6 frequently exceed the levels of 4-OH-tam, it seems likely that endoxifen is at least as important as 4-OH-tam to the overall activity of this drug and suggests that CYP2D6 status and concomitant administration of drugs that inhibit CYP2D6 activity have the potential to affect response to tamoxifen therapy.
Collapse
Affiliation(s)
- Michael D Johnson
- Department of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University Medical Center, Washington, DC 20007, USA.
| | | | | | | | | | | | | | | | | |
Collapse
|
41
|
Nakamura T, Urashima T, Mizukami T, Fukushima M, Arai I, Senshu T, Imazu K, Nakao T, Saito T, Ye Z, Zuo H, Wu K. Composition and oligosaccharides of a milk sample of the giant panda, Ailuropoda melanoleuca. Comp Biochem Physiol B Biochem Mol Biol 2003; 135:439-48. [PMID: 12831764 DOI: 10.1016/s1096-4959(03)00093-9] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
A milk sample from a captive giant panda (Ailuropoda melanoleuca), obtained at 13 days postpartum, contained 7.1% protein, 1.6% carbohydrate, 10.4% lipid and 0.9% ash. The ratio of casein to whey proteins was 5.0:2.1. Sodium dodecyl sulfate polyacrylamide electrophoresis (SDS-PAGE) of the whey protein fraction showed the presence of at least two major proteins other than alpha-lactalbumin and beta-lactoglobulin. SDS-PAGE and urea-gel electrophoresis showed that alphas-casein is not a major component. The proportions of triacylglycerol, cholesterol, cholesterol esters and phospholipid were 90.5, 5.3, 0.96 and 3.1%, of the total lipid, respectively. The dominant saccharide in the panda milk was Gal(alpha1-3)Gal(beta1-4)Glc (isoglobotriose). The milk contained, in addition, lesser amounts of lactose, Gal(alpha1-3)Gal(beta1-4)[Fuc(alpha1-3)]Glc (fucosyl isoglobotriose), Neu5Ac(alpha2-3)Gal(beta1-4)Glc (3'-N-acetylneuraminyl-lactose), Neu5Ac(alpha2-6)Gal(beta1-4)Glc (6'-N-acetylneuraminyl-lactose) and Neu5Ac(alpha2-3)Gal(beta1-4)[Fuc(alpha1-3)]Glc.
Collapse
Affiliation(s)
- Tadashi Nakamura
- Department of Bioresource Science, Obihiro University of Agriculture and Veterinary Medicine, Inada-cho, Obihiro, Hokkaido, 080-8555, Japan.
| | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
42
|
White DH, Lubulwa GA, Menz K, Zuo H, Wint W, Slingenbergh J. Agro-climatic classification systems for estimating the global distribution of livestock numbers and commodities. Environ Int 2001; 27:181-187. [PMID: 11697667 DOI: 10.1016/s0160-4120(01)00080-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Investment in agricultural research in developing countries is being increasingly targeted at those agro-climatic zones and issues where the economic and environmental benefits may be expected to be greatest. This first requires that the zones themselves be defined, along with information on domestic livestock numbers and commodity output within agro-climatic zones in different countries. Different methods for classifying agro-climatic zones were compared. These included methods based on estimated length of growing period (LGP) using rainfall and temperature data, the ratio of precipitation to potential evapotranspiration (PET), and on more detailed agronomic models, remote sensing data and land use information. Zonation based on LGP has already been linked to existing national livestock data. By defining agro-climatic zones and relating concentrations of livestock populations to those of humans, it is possible to make realistic estimates of livestock populations and the production of livestock commodities for most developing countries. Detailed agro-climatic analyses of Mainland East Asia and Sri Lanka have recently been undertaken using the GROWEST agronomic model. Using this model as the basis of agro-climatic classification appears to be significantly superior, particularly in temperate environments, to approaches based solely on LGP. Different ways of subdividing countries and continents into agro-climatic or agro-ecological zones (AEZs) are reviewed in this paper. In addition, we show how the numbers of production and commodities from domestic livestock can be allocated to such zones. We also indicate how some of this information can be applied.
Collapse
Affiliation(s)
- D H White
- ASIT Consulting, Hawker, ACT, Australia.
| | | | | | | | | | | |
Collapse
|
43
|
Zuo H, Shi B, Deng D, Zheng G, Bai D. [Inhibitive effects of lip repair on maxillary growth in patients with complete unilateral cleft lip and palate]. Hua Xi Kou Qiang Yi Xue Za Zhi 2001; 19:229-31. [PMID: 12539727] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/28/2023]
Abstract
OBJECTIVE The aim of this study was to assess the isolated effects of lip repair on inhibition of maxillary growth in patients with complete unilateral cleft lip and palate. METHODS The lateral cephalometric analysis were applied to 20 patients with unilateral cleft lip and palate who only had lip repaired in childhood, 32 patients with unilateral cleft lip and palate who had both lip and palate repaired in childhood, as well as 37 normal Chinese of the same age as controls. RESULTS Both complete unilateral cleft lip and palate groups had almost the same significant degree of maxillary retrusion compared with the normal control group. CONCLUSION Lip repair is one of important factors that could inhibit maxillary growth in patients with complete unilateral cleft lip and palate.
Collapse
Affiliation(s)
- H Zuo
- Sichuan Provincial Second Hospital
| | | | | | | | | |
Collapse
|
44
|
Chen G, Guo J, Zuo H. [Complications of third ventriculostomy for hydrocephalus]. Zhonghua Wai Ke Za Zhi 2001; 39:614-5. [PMID: 11758201] [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: 02/23/2023]
Abstract
OBJECTIVE To explore the reason of complications of third ventriculostomy and the method for reducing complications. METHODS Fifteen third ventriculostomies and the related complications were analyzed retrospectively. RESULTS Two patients had ventricular infection, one subdural fluid collection, one obstraction of fenestration site by neoplasm, one delayed herniation due to hematoma-occupied third ventricle. The complications were due to the inferior quality of the equipment and poor experience. CONCLUSIONS Advanced equipment and understanding of possible complications can reduce complications.
Collapse
Affiliation(s)
- G Chen
- Department of Neurosurgery, China Japan Friendship Hospital, Beijing 100029, China
| | | | | |
Collapse
|
45
|
Shi B, Zuo H, Deng D. [The effect of lip repair on maxillary growth in patients with complete unilateral cleft lip and(or) palate]. Zhonghua Kou Qiang Yi Xue Za Zhi 2001; 36:167-9. [PMID: 11812332] [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: 02/23/2023]
Abstract
OBJECTIVE To investigate the different effects of lip repair on maxillary growth among patients with cleft lip and(or) palate, and also the possible mechanisms accounting for that differences. METHODS The lateral cephalometric analysis was applied to 84 Chinese patients with unilateral cleft lip and(or) palate at the early stage of permanent dentition, which included 32 UCLA, 20 UCLP (CP unrepaired), and 32 UCLP, and 37 normal Chinese of the same age as controls. RESULTS The patients with unilateral cleft lip and palate who had lip repaired while the palate was left unrepaired exhibited the similar inhibition on maxillary growth to those who had both lip and palate repaired but the patients with unilateral cleft lip and alveolus had much less inhibition on their maxilla. CONCLUSIONS The cleft and tissue defect of patients with cleft lip and palate might be the main cause that induced the inhibitive effects of lip repair on maxillary growth.
Collapse
Affiliation(s)
- B Shi
- Department of Oral and Maxillofacial Surgery, College of Stomatology, West China University of Medical Sciences, Chengdu 610041, China
| | | | | |
Collapse
|
46
|
He Y, Mao Z, Bian L, Liang X, Gao Z, Zuo H, Cao X. [Relationship between the expression of Bax and apoptosis induced by hyperthermia in BcaCD885 cells]. Hua Xi Kou Qiang Yi Xue Za Zhi 2001; 19:14-6. [PMID: 12539627] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/28/2023]
Abstract
OBJECTIVE This study aimed to investigate the role of Bax gene in apoptosis induced by hyperthermia in BcaCD885 cells. METHODS After inducing apoptosis through hyperthermia, the expression of Bax protein and mRNA were examined with FCM antibody analysis and RT-PCR technique respectively. RESULTS Up regulation of Bax protein was noted after hyperthermia. The correlation coefficient r between the apoptotic rate and the expression Bax protein was 0.9240. The expression of Bax mRNA was also raised after hyperthermia. CONCLUSION Hyperthermia acting as an external signal may up-regulates expression of Bax gene and then induces apoptosis in BcaCD885 cells.
Collapse
Affiliation(s)
- Y He
- First Affiliated Hospital of Kunming Medical College
| | | | | | | | | | | | | |
Collapse
|
47
|
Zhao K, Zuo H, Zhang L, Yu Y, Yuan Y, Guo J. [Long-term follow-up results of microsurgical treatment for glossopharyngeal neuralgia]. Zhonghua Wai Ke Za Zhi 2000; 38:598-600. [PMID: 11832117] [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: 02/23/2023]
Abstract
OBJECTIVE To discuss effective surgical methods for the treatment of glossopharyngeal neuralgia. METHODS During 1986 - 1998, 21 patients with glossopharyngeal neuralgia were treated microsurgically. Of whom, 5 patients were treated by microvascular decompression (MVD), 4 by MVD combined with rhizotomy of glossopharyngeal nerve root and upper 1st to 2nd rootlets of vagus nerve root, and 12 by rhizotomy of glossopharyngeal nerve root and upper 1st to 2nd rootlets of vagus nerve root. RESULTS Neuralgia disappeared in all patients postoperatively. In 3 patients, occasional coughing episodes occurred postoperatively. One of the 3 patients also suffered from mild hoarseness and swallowing difficulty. All patients were followed up on average 7.2 years with no recurrence. CONCLUSIONS MVD, rhizotomy of glossopharyngeal nerve root and upper 1st to 2nd rootlets of vagus nerve and their combination are effective for the treatment of glossopharyngeal neuralgia. Operative methods should be chosen according to the following two points: compression of nerve roots by affected vessels or not; and the condition of compression.
Collapse
Affiliation(s)
- K Zhao
- Department of Neurosurgery, China-Japan Friendship Hospital, Beijing 100029, China
| | | | | | | | | | | |
Collapse
|
48
|
Sakatani K, Kashiwasake-Jibu M, Terada H, Zuo H. Development of surgical confocal scanning microscope for intra-operative imaging of brain tumors using near infrared fluorescence: technical note. Neurol Res 2000; 22:533-6. [PMID: 10935230 DOI: 10.1080/01616412.2000.11740714] [Citation(s) in RCA: 5] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
We developed a confocal laser scanning microscope for intra-operative imaging of brain tumors using near infrared fluorescence. The quality of near infrared images of Indocyanine Green (ICG) was compared with the surgical confocal scanning (SCS) microscope and a conventional charge-coupled device (CCD) camera; we compared images of a tube filled with ICG, which was located in the mouse brain. Compared to the CCD camera, the SCS microscope could obtain a more precise image of ICG fluorescence through the brain tissue. In addition, the SCS microscope could image ICG fluorescence clearly in a relatively light room because of elimination of stray light, while the CCD camera required high darkness to obtain ICG images. The present SCS microscope can give useful intra-operative imaging of brain tumors, particularly detection of residual tumor tissues that extend into normal brain tissues.
Collapse
Affiliation(s)
- K Sakatani
- Department of Neurosurgery, China-Japan Friendship Hospital, Beijing, China.
| | | | | | | |
Collapse
|
49
|
Mao Z, Gao Z, Xu P, Zuo H, He Y. [Identification of telomerase activity in the experimental carcinogenesis of oral cavity]. Hua Xi Kou Qiang Yi Xue Za Zhi 2000; 18:52-4, 57. [PMID: 12539365] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/28/2023]
Abstract
OBJECTIVE Telomerase is a ribonucleoprotein enzyme which synthesizes telomere DNA repeat sequences and maintain stably telomere length. The activity of telomerase may be necessary for the growth of immortalized cells overcoming cellular senescence. The researches have shown that telomerase activities are associated with most cancers. The purpose of the study is to detect the development of telomerase activity during golden hamster cheek pouch carcinogenesis induced by DMBA. METHODS First, 52 golden hamsters were divided into 2 groups. Four of them were not done any special treatment and were killed after 3 days. The others were covered with DMBA on the surface of cheek pouch on one side in order to induce carcinogenesis, the other side of cheek pouch was treated as the control. Then, the 48 golden hamsters were divided into 4 groups and were killed in 7, 10, 14 and 20 weeks. The telomeric repeat amplification protocol (TRAP) based on PCR and ELISA was used to analysis the activity of telomerase. RESULTS 1. The expression of telomerase activity existed in normal cheek pouch mucosa of golden hamsters, which meant that telomerase played an important role on controlling cell proliferation. 2. The level of telomerase activity gradually increased while hyperplasia and dysplasia was observed in the cheek pouch mucosa covered with DMBA. It reached its top at a later premalignant period and gradually decreased after that. 3. There was negative correlation between the degree the telomere length was shortened and the activity of telomerase (r = -0.9654), and there was positive correlation between the reduced rate of telomere length and the activity of telomerase (r = 0.9471). CONCLUSION The activity of telomerase is one of important factors that can effect the stability of telomere length and plays a crucial role in the progression of oral cancer. So the activity of telomerase is an early molecular marker of carcinogenesis.
Collapse
Affiliation(s)
- Z Mao
- Department of Oral Maxillofacial Surgery, College of Stomatology, West China University of Medical Sciences
| | | | | | | | | |
Collapse
|
50
|
Gan M, Zuo H, Yang Z, Jiang Y. [The method of time series modeling and its application in the spectral analysis of lubricating oil]. Guang Pu Xue Yu Guang Pu Fen Xi 2000; 20:64-67. [PMID: 12953452] [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: 05/24/2023]
Abstract
In this paper, we discuss the applications of time series modeling method in the analysis of lubricating oil of mechanical equipment. We obtained satisfactory results by applying AR model to perform time series modeling and forecasting analysis to the collected spectral analysis data of the air engine. So we have built a practical method for state monitoring and trouble forecasting of mechanical equipment.
Collapse
Affiliation(s)
- M Gan
- Civil Aviation College, Nanjing University of Aeronautics and Astronautics, 210016 Nanjing
| | | | | | | |
Collapse
|