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Zou M, He DM, Xu J, Cheng Q, Ouyang FZ, Chen LY, Chen QF, Ke CW, Ke BX. [Etiological characterization of invasive non-typhoid Salmonella strains in Guangdong Province from 2018 to 2022]. Zhonghua Liu Xing Bing Xue Za Zhi 2024; 45:520-528. [PMID: 38678347 DOI: 10.3760/cma.j.cn112338-20230809-00060] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 04/29/2024]
Abstract
Objective: To understand the serotype distribution, drug resistance and molecular characterization of invasive non-typhoid Salmonella (iNTS) in Guangdong Province from 2018 to 2022 and provide scientific evidence for the prevention and treatment of blood flow infection caused by Salmonella. Methods: Serological identification, antimicrobial susceptibility testing, multilocus sequence typing (MLST), and whole genome sequencing were performed on Salmonella isolated from blood and stool samples in Guangdong from 2018 to 2022. Simultaneously, annotated the sequencing results for drug resistance genes and virulence factors by a microbial gene annotation system. Results: The 136 iNTS strains were divided into 25 serotypes, and Salmonella enteritidis accounted for 38.24% (52/136). The OR of other iNTS serotypes were calculated with Salmonella typhimurium as the control. The OR values of Oreninburg, Rysson, and Pomona serotypes were the highest, which were 423.50, 352.92, and 211.75, respectively. The drug resistance rate of iNTS was 0.74%-66.91%, which was lower than that of non-iNTS (3.90%-77.21%). The main iNTS of drug resistance were ampicillin and tetracycline, with resistance rates of 66.91% (91/136) and 50.00% (68/136), respectively, while the resistance rates to ciprofloxacin (5.88%,8/136), ceftazidime (5.88%,8/136), gentamicin (5.13%,7/136) and cefoxitin (0.74%, 1/136) were relatively low. iNTS carried a variety of drug-resistance genes and virulence factors, but no standard virulence factor distribution has been found. MLST cluster analysis showed that iNTS was divided into 26 sequence types, and ST11 accounted for 38.24% (52/136). Conclusions: The iNTS strains in Guangdong were dominated by Salmonella enteritidis, of which three serotypes, Oreninburg, Rison, and Pomona, may be associated with a higher risk of invasive infection during 2018 to 2022. iNTS was sensitive to clinical first-line therapeutic drugs (cephalosporins and fluoroquinolones), with highly diverse sequences and clear phylogenetic branches. ST11 was the local dominant clone group.
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Affiliation(s)
- M Zou
- School of Public Health, Sun Yat-sen University, Guangzhou 510080, China Guangdong Provincial Center for Disease Control and Prevention, Guangdong Provincial Key Laboratory of Pathogen Detection for Emerging Infectious Disease Response, Guangzhou 510080,China
| | - D M He
- Guangdong Provincial Center for Disease Control and Prevention, Guangdong Provincial Key Laboratory of Pathogen Detection for Emerging Infectious Disease Response, Guangzhou 510080,China
| | - J Xu
- Guangdong Provincial Center for Disease Control and Prevention, Guangdong Provincial Key Laboratory of Pathogen Detection for Emerging Infectious Disease Response, Guangzhou 510080,China
| | - Q Cheng
- Guangdong Provincial Center for Disease Control and Prevention, Guangdong Provincial Key Laboratory of Pathogen Detection for Emerging Infectious Disease Response, Guangzhou 510080,China School of Public Health, Guangdong Pharmaceutical University, Guangzhou 510080,China
| | - F Z Ouyang
- Guangdong Provincial Center for Disease Control and Prevention, Guangdong Provincial Key Laboratory of Pathogen Detection for Emerging Infectious Disease Response, Guangzhou 510080,China
| | - L Y Chen
- Guangdong Provincial Center for Disease Control and Prevention, Guangdong Provincial Key Laboratory of Pathogen Detection for Emerging Infectious Disease Response, Guangzhou 510080,China School of Traditional Chinese Medicine, Guangzhou University of Chinese Medicine, Guangzhou 510080,China
| | - Q F Chen
- Guangdong Provincial Center for Disease Control and Prevention, Guangdong Provincial Key Laboratory of Pathogen Detection for Emerging Infectious Disease Response, Guangzhou 510080,China School of Public Health, Southern Medical University, Guangzhou 510080, China
| | - C W Ke
- Guangdong Provincial Center for Disease Control and Prevention, Guangdong Provincial Key Laboratory of Pathogen Detection for Emerging Infectious Disease Response, Guangzhou 510080,China
| | - B X Ke
- Guangdong Provincial Center for Disease Control and Prevention, Guangdong Provincial Key Laboratory of Pathogen Detection for Emerging Infectious Disease Response, Guangzhou 510080,China
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Zou M, Bhatia A, Dong H, Jayaprakash P, Guo J, Sahu D, Hou Y, Tsen F, Tong C, O'Brien K, Situ AJ, Schmidt T, Chen M, Ying Q, Ulmer TS, Woodley DT, Li W. Correction: Evolutionarily conserved dual lysine motif determines the non-chaperone function of secreted Hsp90alpha in tumour progression. Oncogene 2024:10.1038/s41388-024-03017-0. [PMID: 38575761 DOI: 10.1038/s41388-024-03017-0] [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: 04/06/2024]
Affiliation(s)
- M Zou
- Department of Dermatology and the Norris Comprehensive Cancer Center, Los Angeles, CA, USA
- Department of Endocrinology and Metabolism, and Department of Respiratory and Critical Care Medicine, Chronic Airways Diseases Laboratory, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - A Bhatia
- Department of Dermatology and the Norris Comprehensive Cancer Center, Los Angeles, CA, USA
| | - H Dong
- Department of Dermatology and the Norris Comprehensive Cancer Center, Los Angeles, CA, USA
- Department of Endocrinology and Metabolism, and Department of Respiratory and Critical Care Medicine, Chronic Airways Diseases Laboratory, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - P Jayaprakash
- Department of Dermatology and the Norris Comprehensive Cancer Center, Los Angeles, CA, USA
| | - J Guo
- Department of Dermatology and the Norris Comprehensive Cancer Center, Los Angeles, CA, USA
| | - D Sahu
- Department of Dermatology and the Norris Comprehensive Cancer Center, Los Angeles, CA, USA
| | - Y Hou
- Department of Dermatology and the Norris Comprehensive Cancer Center, Los Angeles, CA, USA
| | - F Tsen
- Department of Dermatology and the Norris Comprehensive Cancer Center, Los Angeles, CA, USA
| | - C Tong
- Eli and Edythe Broad Center for Regenerative Medicine and Stem Cell Research and Department of Cell and Neurobiology, Los Angeles, CA, USA
| | - K O'Brien
- Department of Dermatology and the Norris Comprehensive Cancer Center, Los Angeles, CA, USA
| | - A J Situ
- Department of Biochemistry and Molecular Biology and Zilkha Neurogenetic Institute University of Southern California Keck Medical Center, Los Angeles, CA, USA
| | - T Schmidt
- Department of Biochemistry and Molecular Biology and Zilkha Neurogenetic Institute University of Southern California Keck Medical Center, Los Angeles, CA, USA
| | - M Chen
- Department of Dermatology and the Norris Comprehensive Cancer Center, Los Angeles, CA, USA
- Department of Medical Research, Greater Los Angeles Veterans Affairs Heath Care System, Los Angeles, CA, USA
| | - Q Ying
- Eli and Edythe Broad Center for Regenerative Medicine and Stem Cell Research and Department of Cell and Neurobiology, Los Angeles, CA, USA
| | - T S Ulmer
- Department of Biochemistry and Molecular Biology and Zilkha Neurogenetic Institute University of Southern California Keck Medical Center, Los Angeles, CA, USA
| | - D T Woodley
- Department of Dermatology and the Norris Comprehensive Cancer Center, Los Angeles, CA, USA
- Department of Medical Research, Greater Los Angeles Veterans Affairs Heath Care System, Los Angeles, CA, USA
| | - W Li
- Department of Dermatology and the Norris Comprehensive Cancer Center, Los Angeles, CA, USA.
- Department of Medical Research, Greater Los Angeles Veterans Affairs Heath Care System, Los Angeles, CA, USA.
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Zou M, Zheng Z, Xiahou Z, Cao J. Prediction of potential targets and toxicological insights of Astragalus in liver cancer based on network pharmacology: Integrating systems biology, drug interaction networks, and toxicological perspectives. Environ Toxicol 2024. [PMID: 38476113 DOI: 10.1002/tox.24189] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2023] [Revised: 01/31/2024] [Accepted: 02/10/2024] [Indexed: 03/14/2024]
Abstract
This study investigates Astragalus's efficacy as a novel therapeutic option for primary liver cancer (PLC), capitalizing on its anti-inflammatory and antiviral effects. We utilized network pharmacology to unveil Astragalus's potential targets against PLC, revealing significant gene expression alterations in treated samples-20 genes were up-regulated, and 20 were down-regulated compared to controls. Our analysis extended to single-cell resolution, where we processed scRNA-seq data to discern 15 unique cell clusters within the immune, malignant, and stromal compartments through advanced algorithms like UMAP and tSNE. To delve deeper into the functional implications of these gene expression changes, we conducted comprehensive gene ontology and Kyoto Encyclopedia of Genes and Genomes pathway enrichment analyses, alongside Gene Set Variation Analysis, to elucidate the biological processes and pathways involved. Further, we constructed protein-protein interaction networks to visualize the intricate molecular interplay, highlighting the down-regulation of MT1E in PLC cells, a finding corroborated by quantitative polymerase chain reaction. Molecular docking studies affirmed the potent interaction between Astragalus's active compounds and MT proteins, underscoring a targeted therapeutic mechanism. Our investigation also encompassed a detailed cellular landscape analysis, identifying nine cell subgroups related to MT1 expression and specifying five cell subsets through the SingleR package. Advanced trajectory and cell-cell interaction analyses offered deeper insights into the dynamics of MT1-associated cellular subpopulations. This comprehensive methodology not only underpins Astragalus's promising role in PLC treatment but also advances our understanding of its molecular and cellular mechanisms, paving the way for targeted therapeutic strategies.
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Affiliation(s)
- Minjun Zou
- Zhongshan People's Hospital, Zhongshan, Guangdong, China
| | - Zhiye Zheng
- Zhongshan People's Hospital, Zhongshan, Guangdong, China
| | - Zhikai Xiahou
- China Institute of Sport and Health Science, Beijing Sport University, Beijing, China
| | - Jianwei Cao
- Zhongshan People's Hospital, Zhongshan, Guangdong, China
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Zeng X, Zhou S, Chen ZY, Li YN, Shi H, Jia XZ, Yang LQ, Liu J, Liu LY, Zou M, Zhou XP. Information-based continuous nursing on pregnant women with gestational diabetes mellitus. Eur Rev Med Pharmacol Sci 2023; 27:8762-8772. [PMID: 37782188 DOI: 10.26355/eurrev_202309_33798] [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: 10/03/2023]
Abstract
OBJECTIVE Gestational diabetes mellitus (GDM) is a serious pregnancy complication, and women with undiagnosed diabetes mellitus can develop chronic hyperglycemia during pregnancy. The purpose of this study is to investigate the impact of information-based continuity of care on glucose levels, health awareness, and maternal and infant outcomes in pregnant women with GDM, thereby providing a basis for the clinical implementation of effective interventions for GDM to reduce or avoid adverse outcomes due to GDM. PATIENTS AND METHODS One hundred and sixty cases of pregnant women with GDM who underwent treatment in the obstetrics and gynecology department of our hospital from June 2019 to September 2021 were randomly selected as the study population and divided into the control group (n=80) and the study group (n=80). Women in the control group were received with conventional nursing intervention, and those in the study group were obtained with information-based continuity of care on the basis of the control group. Basic clinical data were collected. The levels of fasting blood glucose (FBG), 2h postprandial glucose (2hPG), knowledge of health education, treatment compliance scores, and changes in delivery outcomes were compared between the two groups. According to the maternal blood glucose control level, 160 pregnant women with GDM were divided into the better control group (143 cases) and the poor control group (17 cases). The risk factors affecting the level of maternal glycemic control in gestational diabetes were analyzed. RESULTS After the intervention, the levels of FBG and 2hPG were significantly lower in both groups than those before the intervention, while the levels of FBG and 2hPG in the study group were notably lower than those in the control group. The health education knowledge score and treatment compliance score after the intervention were significantly higher than those before the intervention, and the health education knowledge score and treatment compliance score in the study group were observably higher than those in the control group (p<0.01). The adverse pregnancy outcomes of pregnant women in the study group were significantly reduced compared with those in the control group (p<0.05). Logistic regression analysis showed that body mass index (BMI), dietary control, literacy, and information-based continuity of care were all influential factors for maternal glycemic control level (p<0.05). Among the influencing factors, dietary control and continuity of care had clinical value in predicting maternal glycemic control levels in gestational diabetes. CONCLUSIONS Continuous nursing based on informatization can effectively control the blood glucose level of pregnant women with GDM, improve the treatment compliance of pregnant women and the awareness rate of gestational diabetes knowledge so as to reduce the occurrence of adverse pregnancy outcomes and improve the health level. In addition, BMI and dietary control are independent risk factors that affect the blood glucose control level of pregnant women. Relevant intervention measures should be formulated according to the relevant influencing factors to effectively control the blood glucose level of pregnant women with GDM and improve maternal and infant outcomes.
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Affiliation(s)
- X Zeng
- Department of Obstetrics, Hunan Provincial Maternal and Child Health Care Hospital, Changsha, Hunan Province, China.
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Zhang J, Shi W, Zou M, Zeng Q, Feng Y, Luo Z, Gan H. Prevalence and risk factors of erectile dysfunction in COVID-19 patients: a systematic review and meta-analysis. J Endocrinol Invest 2023; 46:795-804. [PMID: 36307637 PMCID: PMC9616422 DOI: 10.1007/s40618-022-01945-w] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/04/2022] [Accepted: 10/10/2022] [Indexed: 01/18/2023]
Abstract
PURPOSE Studies have found that erectile dysfunction (ED) may be a short-term or long-term complication in coronavirus disease 2019 (COVID-19) patients, but no relevant studies have completed a pooled analysis of this claim. The purpose of the review was to comprehensively search the relevant literature, summarize the prevalence of ED in COVID-19 patients, assess risk factors for its development, and explore the effect of the COVID-19 infection on erectile function. METHODS Medline, Embase, and the Cochrane Library was performed from database inception until April 14, 2022. Heterogeneity was analyzed by χ2 tests and I2 was used as a quantitative test of heterogeneity. Subgroup analyses, meta-regression, and sensitivity analyses were used to analyze sources of heterogeneity. RESULTS Our review included 8 studies, 4 of which functioned as a control group. There were 250,606 COVID-19 patients (mean age: 31-47.1 years, sample size: 23-246,990). The control group consisted of 10,844,200 individuals (mean age: 32.76-42.4 years, sample size 75-10,836,663). The prevalence of ED was 33% (95% CI 18-47%, I2 = 99.48%) in COVID-19 patients. The prevalence of ED based on the international coding of diseases (ICD-10) was 9% (95% CI 2-19%), which was significantly lower than the prevalence of ED diagnosed based on the International Index of Erectile Function (IIEF-5) (46%, 95% CI 22-71%, I2 = 96.72%). The pooling prevalence of ED was 50% (95% CI 34-67%, I2 = 81.54%) for articles published in 2021, significantly higher than that for articles published in 2022 (17%, 95% CI 7-30%, I2 = 99.55%). The relative risk of developing ED was 2.64 times in COVID-19 patients higher than in non-COVID-19 patients (RR: 2.64, 95% CI 1.01-6.88). The GRADE-pro score showed that the mean incidence of ED events in COVID-19 patients was 1,333/50,606 (2.6%) compared with 52,937/844,200 (0.4%) in controls; the absolute impact of COVID-19 on ED was 656/100,000 (ranging from 4/100,000 to 2352/100,000). Anxiety (OR: 1.13, 95% CI 1.03-1.26, I2 = 0.0%) in COVID-19 patients was a risk factor for ED. CONCLUSION COVID-19 patients have a high risk and prevalence of ED, mainly driven by anxiety. Attention should be paid to patient's erectile functioning when treating COVID-19.
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Affiliation(s)
- J Zhang
- Department of Geriatrics and National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - W Shi
- Department of Obstetrics and Gynecology, Key Laboratory of Birth Defects and Related Diseases of Women and Children, Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, China
| | - M Zou
- Lab of Inflammatory Bowel Disease, The Center for Inflammatory Bowel Disease, Clinical Institute of Inflammation and Immunology, Frontiers Science Center for Disease-Related Molecular Network, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Q Zeng
- Lab of Inflammatory Bowel Disease, The Center for Inflammatory Bowel Disease, Clinical Institute of Inflammation and Immunology, Frontiers Science Center for Disease-Related Molecular Network, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Y Feng
- Department of Geriatrics and National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Z Luo
- Department of Geriatrics and National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - H Gan
- Department of Geriatrics and National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, Sichuan, China.
- Lab of Inflammatory Bowel Disease, The Center for Inflammatory Bowel Disease, Clinical Institute of Inflammation and Immunology, Frontiers Science Center for Disease-Related Molecular Network, West China Hospital, Sichuan University, Chengdu, Sichuan, China.
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Luo R, Fan C, Jiang G, Hu F, Wang L, Guo Q, Zou M, Wang Y, Wang T, Sun Y, Peng X. Andrographolide restored production performances and serum biochemical indexes and attenuated organs damage in Mycoplasma gallisepticum-infected broilers. Br Poult Sci 2022; 64:164-175. [PMID: 36222587 DOI: 10.1080/00071668.2022.2128987] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
1. This study aimed to study the preventive and therapeutic effects of andrographolide (Andro) during Mycoplasma gallisepticum HS strain (MG) infection in ArborAcres (AA) broilers.2. The minimum inhibitory concentration (MIC) of Andro against MG was measured. Broiler body weight, feed efficiency, morbidity, cure rate and mortality were recorded during the experiment. Air sac lesion scores and immune organ index were calculated. Expression of pMGA1.2 in lung tissue and serum biochemical indices were examined. Histopathological examinations of immune organs, liver, trachea and lung tissue were conducted by Haematoxylin and Eosin stain.3. MIC was 3.75 μg/mL and Andro significantly inhibited the expression of pMGA1.2 (P ≤ 0.05). Compared with control MG-infected group, Andro low-dose and high-dose prevention reduced the morbidity of chronic respiratory disease in 40.00% and 50.00%, respectively. Mortality of C, D and E group was 16.67%, 10.00% and 6.67%, respectively. Cure rate of E, F, G and H group was 92.00%, 92.86%, 93.33% and 100.0%, respectively. Compared with control MG-infected group, Andro treatment significantly increased average weight gain (AWG), relative weight gain rate (RWG) and feed conversion rate (FCR) at 18 to 24 days (P ≤ 0.05). Compared with control group, Andro alone treatment significantly increased AWG in broilers (P ≤ 0.05).4. Compared with control MG-infected group, Andro significantly attenuated MG-induced air sac lesion, immune organs, liver, trachea and lung damage in broilers. Andro alone treatment did not induce abnormal morphological changes in these organs in healthy broilers. Serum biochemical analysis results showed, comparing with control MG-infected group, Andro significantly decreased the content of total protein, albumin, globulin, alanine aminotransferase, aspartate aminotransferase, total bilirubin, urea, creatinine, uric acid, total cholesterol, and increased the albumin/globulin ratio and content of alkaline phosphatase, apolipoprotein B and apolipoprotein A-I in a dose-dependent manner (P ≤ 0.05).5. Andro could act as a potential agent against MG infection in broilers.
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Affiliation(s)
- R Luo
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction, Ministry of Education; College of Animal Science and Technology and College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
| | - C Fan
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction, Ministry of Education; College of Animal Science and Technology and College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
| | - G Jiang
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction, Ministry of Education; College of Animal Science and Technology and College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
| | - F Hu
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction, Ministry of Education; College of Animal Science and Technology and College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
| | - L Wang
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction, Ministry of Education; College of Animal Science and Technology and College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
| | - Q Guo
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction, Ministry of Education; College of Animal Science and Technology and College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
| | - M Zou
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction, Ministry of Education; College of Animal Science and Technology and College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
| | - Y Wang
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction, Ministry of Education; College of Animal Science and Technology and College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
| | - T Wang
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction, Ministry of Education; College of Animal Science and Technology and College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
| | - Y Sun
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction, Ministry of Education; College of Animal Science and Technology and College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
| | - X Peng
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction, Ministry of Education; College of Animal Science and Technology and College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
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He A, Ding X, Huang J, Luo X, Meng J, Cao Y, Gao F, Zou M. [Clinical characteristics and risk factors of lower extremity arterial disease in patients with diabetic foot ulcer]. Nan Fang Yi Ke Da Xue Xue Bao 2022; 42:604-609. [PMID: 35527498 DOI: 10.12122/j.issn.1673-4254.2022.04.18] [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] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
OBJECTIVE To investigate the clinical characteristics of lower extremity arterial disease (LEAD) and its risk factors in patients with diabetic foot ulcer (DFU). METHODS We retrospectively collected the clinical and follow-up data of 650 patients with DFU treated in the Department of Endocrinology and Metabolism of Nanfang Hospital between January, 2017 and December, 2019. We compared the data between patients who had LEAD and those without LEAD and used a multivariate logistic regression model to analyze the risk factors of LEAD in DFU patients. RESULTS Among the 650 DFU patients, 470 (72.4%) had LEAD. The patients were followed up for a mean of 3.5 months, and the mean healing time of DFU was 2.55 months; healing of DFU occurred in 453 patients and 183 patients received amputation. The patients with LEAD and those without LEAD differed significantly in age, hospitalization costs, diastolic blood pressure (DBP), glycated hemoglobin, blood lipid levels, disease course, ankle brachial index, healing time, smoking history, clinical outcomes, Wagner grade and imaging results (P < 0.05). Multivariate logistic regression analysis identified age (OR=1.070, 95% CI: 1.049-1.091), smoking history (OR= 2.013, 95% CI: 1.268-3.195), and a decreased DBP (OR=0.980, 95% CI: 0.963-0.997) as independent risk factors for LEAD in DFU patients. A prolonged healing time was a prominent clinical feature of DFU complicated by LEAD. CONCLUSION DFU patients have a high incidence of LEAD, which leads to high rates of disability and mortality and is associated with an advanced age, high smoking rate and longer healing time. A decreased DBP is also a risk factor for LEAD in DFU patients.
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Affiliation(s)
- A He
- Department of Endocrinology and Metabolism, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - X Ding
- Department of Occupational Health and Medicine, School of Public Health, Southern Medical University, Guangzhou 510515, China
| | - J Huang
- Department of Endocrinology and Metabolism, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - X Luo
- Department of Endocrinology and Metabolism, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - J Meng
- Department of Endocrinology and Metabolism, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Y Cao
- Department of Endocrinology and Metabolism, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - F Gao
- Department of Endocrinology and Metabolism, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - M Zou
- Department of Endocrinology and Metabolism, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
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Wolf J, Ventouras LA, Menu P, Wójtowicz A, Zou M, Diallo S, Chassot Agostinho A, Tiedt R, Mina M. 101P The landscape of MET alterations in European cancer patients. Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.08.381] [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: 11/30/2022] Open
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Feng Y, Lei X, Zhang L, Wan H, Pan H, Wu J, Zou M, Zhu L, Mi Y. COPB2: a transport protein with multifaceted roles in cancer development and progression. Clin Transl Oncol 2021; 23:2195-2205. [PMID: 34101128 PMCID: PMC8455385 DOI: 10.1007/s12094-021-02630-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2021] [Accepted: 04/22/2021] [Indexed: 11/29/2022]
Abstract
The Coatomer protein complex subunit beta 2 (COPB2) is involved in the formation of the COPI coatomer protein complex and is responsible for the transport of vesicles between the Golgi apparatus and the endoplasmic reticulum. It plays an important role in maintaining the integrity of these cellular organelles, as well as in maintaining cell homeostasis. More importantly, COPB2 plays key roles in embryonic development and tumor progression. COPB2 is regarded as a vital oncogene in several cancer types and has been implicated in tumor cell proliferation, survival, invasion, and metastasis. Here, we summarize the current knowledge on the roles of COPB2 in cancer development and progression in the context of the hallmarks of cancer.
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Affiliation(s)
- Y Feng
- Wuxi Medical College, Jiangnan University, Wuxi, 214122, Jiangsu Province, China.,Department of Urology, Affiliated Hospital of Jiangnan University, Wuxi, 214122, Jiangsu Province, China
| | - X Lei
- Wuxi Medical College, Jiangnan University, Wuxi, 214122, Jiangsu Province, China
| | - L Zhang
- Department of Urology, Affiliated Changzhou No. 2 People's Hospital of Nanjing Medical University, Changzhou, 213003, Jiangsu Province, China
| | - H Wan
- Wuxi Medical College, Jiangnan University, Wuxi, 214122, Jiangsu Province, China.,Department of Urology, Affiliated Hospital of Jiangnan University, Wuxi, 214122, Jiangsu Province, China
| | - H Pan
- Department of Urology, Affiliated Hospital of Jiangnan University, Wuxi, 214122, Jiangsu Province, China
| | - J Wu
- Department of Burns and Plastic Surgery, Affiliated Hospital of Jiangnan University, Wuxi, 214122, Jiangsu Province, China
| | - M Zou
- Wuxi Clinical Medicine School of Integrated Chinese and Western Medicine, Nanjing University of Chinese Medicine, Wuxi, 214122, Jiangsu Province, China
| | - L Zhu
- Department of Urology, Affiliated Hospital of Jiangnan University, Wuxi, 214122, Jiangsu Province, China.
| | - Y Mi
- Department of Urology, Affiliated Hospital of Jiangnan University, Wuxi, 214122, Jiangsu Province, China.
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Zou M, Yang L, Niu L, Zhao Y, Sun Y, Fu Y, Peng X. Baicalin ameliorates Mycoplasma gallisepticum-induced lung inflammation in chicken by inhibiting TLR6-mediated NF-κB signalling. Br Poult Sci 2020; 62:199-210. [PMID: 33252265 DOI: 10.1080/00071668.2020.1847251] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
1. Mycoplasma gallisepticum (MG) causes severe lung inflammation and cell damage by activating toll-like receptor (TLR) signalling, the nuclear factor-kappaB (NF-κB) pathway and pro-inflammatory cytokine gene expression. Baicalin (BA) is a flavonoid extracted from Scutellaria baicalensis, which possesses anti-inflammatory and anti-bacterial properties. This study investigated the effect of BA in MG-induced lung inflammation and its potential mechanism in MG-infected chicken embryo lungs and DF-1 cells.2. The histopathological examination result showed that BA treatment alleviated MG-induced lung pathological changes. In addition, CCK-8 and cell cycle assays showed that BA treatment inhibited MG-induced cell proliferation and cell cycle progression in DF-1 cells.3. The ELISA and RT-qPCR results demonstrated that BA treatment decreased the expression of interleukin-1beta (IL-1β), IL-6, and tumour necrosis factor-alpha (TNF-α) both in MG-infected chicken embryo lungs and DF-1 cells.4. The results revealed that BA inhibited mRNA expression levels of toll-like receptor-6 (TLR6), myeloid differentiation primary response gene-88 (MyD88) and nuclear factor-κB (NF-κB), and the nuclear translocation of NF-κB-p655. In conclusion, the results showed that BA has a protective effect against MG-induced lung inflammation in chicken by inhibiting the TLR6-mediated NF-κB signalling.
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Affiliation(s)
- M Zou
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction, Ministry of Education; College of Animal Science and Technology and College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
| | - L Yang
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction, Ministry of Education; College of Animal Science and Technology and College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
| | - L Niu
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction, Ministry of Education; College of Animal Science and Technology and College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
| | - Y Zhao
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction, Ministry of Education; College of Animal Science and Technology and College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
| | - Y Sun
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction, Ministry of Education; College of Animal Science and Technology and College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
| | - Y Fu
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction, Ministry of Education; College of Animal Science and Technology and College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
| | - X Peng
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction, Ministry of Education; College of Animal Science and Technology and College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
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11
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He Z, Xu C, Chen G, Wang J, Zhang X, Wang P, Ma T, Zhang Y, Tian C, Chen Y, Zou M, Han Y, Wang L, Ma S, Chen H, Wu Y, Wu X, Yang S, Gao Y, Wang Q. 394P Apatinib plus etoposide capsules as third-line or further-line treatment for extensive stage small cell lung cancer patients: A multicenter, single arm, phase II clinical trial. Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.10.388] [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: 11/30/2022] Open
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12
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Zou M, Wang YH, Dong YF, Lai XJ, Li JC. Clinical and sonographic features for the preoperative prediction of lymph nodes posterior to the right recurrent laryngeal nerve metastasis in patients with papillary thyroid carcinoma. J Endocrinol Invest 2020; 43:1511-1517. [PMID: 32253729 DOI: 10.1007/s40618-020-01238-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/24/2020] [Accepted: 03/23/2020] [Indexed: 02/06/2023]
Abstract
OBJECTIVE To evaluate clinical and sonographic features predictive of lymph nodes posterior to the right recurrent laryngeal nerve (LN-prRLN) metastasis in patients diagnosed with papillary thyroid carcinoma (PTC). METHODS We retrospectively reviewed the clinical records and ultrasound (US) images of 479 consecutive PTC patients who received total thyroidectomy or right lobectomy with central neck dissection (CND) between October 2017 and October 2019. Univariate and multivariate analyses were performed to identify clinical and sonographic features associated with LN-prRLN metastasis. Receiver operating characteristic (ROC) analysis was applied to evaluate the efficacy of clinical and sonographic features in the preoperative prediction of LN-prRLN metastasis. RESULTS Overall, 127 (26.5%) patients had LN-prRLN metastasis. Multivariate logistic regression analysis showed that age < 45 years (p = 0.005; OR 2.155; 95% CI 1.262-3.683), male sex (p = 0.043; OR 1.657; 95% CI 1.016-2.704), tumor diameter > 1 cm (p = 0.042; OR 1.702; 95% CI 1.019-2.842), microcalcifications (p = 0.022; OR 1.980; 95% CI 1.104-3.551), and US-detected lateral compartment lymph node (LLN) metastasis (p = 0.001; OR 2.578; 95% CI 1.500-4.430) were independent risk factors for LN-prRLN metastasis. ROC analysis revealed that the multivariate logistic regression model had good accuracy in predicting LN-prRLN metastasis, with an area under the ROC curve of 0.758. CONCLUSIONS Age less than 45 years, male sex, tumor diameter larger than 1 cm, microcalcifications, and US-detected LLN metastasis may preoperatively predict LN-prRLN metastasis.
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Affiliation(s)
- M Zou
- Department of Ultrasound, Peking Union Medical College Hospital, 1 Shuaifuyuan, Dongcheng District, Beijing, 100730, China
| | - Y H Wang
- Department of Ultrasound, Peking Union Medical College Hospital, 1 Shuaifuyuan, Dongcheng District, Beijing, 100730, China
| | - Y F Dong
- Department of Ultrasound, Peking Union Medical College Hospital, 1 Shuaifuyuan, Dongcheng District, Beijing, 100730, China
| | - X J Lai
- Department of Ultrasound, Peking Union Medical College Hospital, 1 Shuaifuyuan, Dongcheng District, Beijing, 100730, China.
| | - J C Li
- Department of Ultrasound, Peking Union Medical College Hospital, 1 Shuaifuyuan, Dongcheng District, Beijing, 100730, China.
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13
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Sun Q, Qing W, Qi R, Zou M, Gong L, Liu Y, Li DWC. Inhibition of Sumoylation Alleviates Oxidative Stress-induced Retinal Pigment Epithelial Cell Senescence and Represses Proinflammatory Gene Expression. Curr Mol Med 2019; 18:575-583. [PMID: 30621561 DOI: 10.2174/1566524019666190107154250] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2018] [Revised: 11/13/2018] [Accepted: 12/11/2018] [Indexed: 11/22/2022]
Abstract
PURPOSE Advanced age is the largest risk factor for age-related macular degeneration (AMD). Sumoylation is a reversible post-translational modification that conjugates small peptide, small ubiquitin-like modifier (SUMO), to a target protein. Dysregulation of sumoylation is recently found to be critically involved in several age-related disorders. However, the effects of sumoylation during retina senescence and aging remains elusive. This study is aimed to investigate the function and regulation of sumoylation pathway in the aging retina and premature senescent retinal pigment epithelial (RPE) cells. METHODS 1.5- and 10-month C57/B6 mice were used for comparative aging study. Both ARPE primary cultures and ARPE-19 cells were used for assay systems. The qRT-PCR was used for analysis of mRNA expression. Western blot and immunofluorescence were used to analyze the protein expression. Cell flow cytometry was used for cell cycle progression analysis. RPE barrier function and senescent-associated β-galactosidase (SA β-gal) activity were analyzed to measure cellular senescence. RESULTS We show that the expression of SUMO enzymes and global protein sumoylation were downregulated in the aging mouse retina, and in the oxidative stress (OS) -induced premature senescent RPE cells. Dramatical altered distribution of SUMO E1, E2 and E3 enzymes were observed during RPE senescence. Inhibition of sumoylation alleviated OS-induced cell senescence in RPE cells, as indicated by decreased p21 and p53 expression and decreased percentage of cell cycle arrest at G0/G1 phase. Intriguingly, inhibition of SUMO E1 repressed the expression of proinflammatory cytokine and chemokine in the premature senescent RPE cells. However, inhibition of sumoylation did not prevent DNA damage during the OS-induced RPE senescence process. CONCLUSIONS Our data indicate sumoylation critically regulates retina and RPE aging and that targeting sumoylation process may provide potential therapeutic strategy for AMD treatment.
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Affiliation(s)
- Q Sun
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou 510060, China
| | - W Qing
- Key Laboratory of Protein Chemistry and Developmental Biology, College of Life Sciences, Hunan Normal University, Changsha, China
| | - R Qi
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou 510060, China
| | - M Zou
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou 510060, China
| | - L Gong
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou 510060, China
| | - Y Liu
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou 510060, China
| | - D W-C Li
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou 510060, China.,Key Laboratory of Protein Chemistry and Developmental Biology, College of Life Sciences, Hunan Normal University, Changsha, China
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14
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Zhu CT, Li T, Hu YH, Zou M, -Guo Q, Qu XW. Exosomes secreted by mice adipose-derived stem cells after low-level laser irradiation treatment reduce apoptosis of osteocyte induced by hypoxia. Eur Rev Med Pharmacol Sci 2019; 21:5562-5570. [PMID: 29271987 DOI: 10.26355/eurrev_201712_13993] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE Kienböck's disease is a commonly seen posttraumatic avascular necrosis characterized by avascular necrosis of the lunate bone of the wrist which involves the dominant hand. In our study, we aimed to present midterm outcomes of 12 cases treated with radial metaphyseal core decompression. PATIENTS AND METHODS In our clinic, 12 patients who applied to our outpatient clinic with intractable pain despite at least six weeks of conservative treatment were previously diagnosed and evaluated as Kienböck's disease between the years 2006 and 2014. Patients at early stage received radial metaphyseal core decompression. RESULTS The patients were evaluated as postoperative grip strength, flexion-extension gap, ulnar-radial deviation gap, VAS, Quick DASH and MAYO wrist scoring and patient satisfaction. CONCLUSIONS We determined that interventions performed for Kienböck's disease cannot halt radiological progression. We are of the opinion that radial metaphyseal core decompression, aiming at increasing blood perfusion, improve early diagnosis and treatment of Kienböck's disease, increasing the patient satisfaction.
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Affiliation(s)
- C-T Zhu
- Laser Medical Center, The First People's Hospital of Yunnan Province, The Affiliated Hospital of Kunming University of Technology, Yunnan, China.
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15
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Wang XM, Wang J, Zou M, Zheng J, Xue H. [Analysis of the discrepancy of crown-root morphology of central incisors among different skeletal malocclusion using cone-beam CT]. Zhonghua Kou Qiang Yi Xue Za Zhi 2019; 54:101-106. [PMID: 30695911 DOI: 10.3760/cma.j.issn.1002-0098.2019.02.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the discrepancy of crown-root morphology of upper and lower central incisors in adult patients with different skeletal malocclusions using cone-beam CT (CBCT). Methods: Patients visiting the Department of Orthodontics, College of Stomatology, Xi'an Jiaotong University from January 2015 to December 2017 were selected, including 108 cases (52 males, 56 females, aged from 18 to 30 years, mean age 25.8 years). According to CBCT data and cephalometric analysis, 66 patients with average angle were selected as the sagittal skeletal group, including 24 Class Ⅰ patients, 20 Class Ⅱ and 22 Class Ⅲ patients. In the other selected 66 skeletal Class Ⅰ patients including 21 low angle patients, 24 average angle patients (from the sagittal skeletal Class Ⅰ subgroup) and 21 high angle patients. Invivo 5 software was used to locate the CBCT image three dimensionally and then obtain the middle labio-lingual section of right central incisor. Auto CAD 2007 software was applied to measure the angle formed by the long axis of root and the extension line of the long axis of crown (Collum angle), and the angle between the long axis of crown and the lip tangent line passing through the center of the labial surface of crown (labial surface angle). One-way ANOVA and Scheff were used to analyze the discrepancies among classifications and Pearson correlation analysis was used to determine the correlation between the Collum angles and labial surface angles. Results: Significant differences were found in Collum angles and labial surface angles among different sagittal skeletal patterns (P<0.05). The Collum angle of maxillary central incisors in Class Ⅱ patients was 5.18°±4.97° and the average labial surface angle was 17.78°±3.74°, which were both significantly higher than that of maxillary central incisors in Class Ⅰ and Ⅲ subgroups (P<0.05). Similarly, the above two angles of mandibular central incisors in Class Ⅲ were 5.59°±5.64° and 15.32°±3.05°, which were significantly higher than that of mandibular central incisors in Class Ⅰ and Ⅱ subgroups (P<0.05). There was no significant difference among different vertical skeletal patterns (P>0.05). Notably, the Collum angles of maxillary or mandibular central incisors presented significantly positive correlation with labial surface angles (maxillary: r=0.723, P<0.001; mandibular: r=0.752, P<0.001). Conclusions: The long axis of the crown of the maxillary central incisor in skeletal Class Ⅱ patients and the mandibular central incisor in skeletal Class Ⅲ patients are obviously deviated toward the lingual side relative to the long axis of the root, and correspondingly there is a greater labial surface angle of the crown, which indicates that equivalent positioning deviation during bracket bonding can cause greater torque expression error.
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Affiliation(s)
- X M Wang
- Department of Orthodontics, College of Stomatology, Xi'an Jiaotong University, Xi'an 710004, China
| | | | | | - J Zheng
- Department of Orthodontics, College of Stomatology, Xi'an Jiaotong University, Xi'an 710004, China (is working on the Myour Dental Clinic, Suzhou 215006, China)
| | - H Xue
- Department of Orthodontics, College of Stomatology, Xi'an Jiaotong University, Xi'an 710004, China (is working on the Department of Stomatology, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou 215006, China)
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16
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Borba M, Zhang Y, Okamoto T, Zou M, Kaizer M. 9. Wear Behavior of Translucent Zirconia after Chewing Simulation. Dent Mater 2019. [DOI: 10.1016/j.dental.2019.08.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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17
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Zhu CT, Li T, Zhang P, Zou M, Guo Q, Qu XW. Beneficial effects of low-level laser irradiation on senile osteoporosis in rats. Eur Rev Med Pharmacol Sci 2018; 21:5230-5238. [PMID: 29228439 DOI: 10.26355/eurrev_201711_13846] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE To investigate the effect of low-level laser irradiation (LLLI) on bone mineral density (BMD), bone structures, bone biomechanical properties and bone metabolism in senile osteoporosis, and to explore a relatively more secure and effective way to prevent and treat osteoporosis. MATERIALS AND METHODS Sprague-Dawley (SD) male rats at different age stages (4 months old, 12 months old and 20 months old) were selected and randomly divided into six groups. The rats in the treatment group were treated with LLLI for 12 weeks, and then the microstructure of bones was analyzed by micro-computed tomography (micro-CT) scanning. The biomechanical indexes of the femur were detected by the three-point bending test. Levels of the blood calcium (Ca)2+, blood phosphorus (P)3+, urine Ca, urine P and urine creatinine (CREA) were detected using an automatic biochemical analyzer. The contents of serum osteocalcin (OCN) and bone alkaline phosphatase (BAP) were measured by enzyme-linked immunosorbent assay (ELISA). The bone formation rate (BFR) was analyzed by double fluorescent labeling with calcein and tetracycline. Hematoxylin and eosin (HE) staining and toluidine blue staining were used to analyze the number of bone marrow osteoblasts and adipocytes. RESULTS Micro-CT results showed that compared with those in the young group, the bone mineral density (BMD) in the old group was significantly decreased, and the trabecular microstructure was seriously damaged. LLLI could significantly enhance the BMD and improve the damage to the trabecular microstructure; the three-point bending test revealed that LLLI could significantly improve the biomechanical properties and enhance the mechanical strength of the femur in the old group; the biochemical analysis showed that LLLI could significantly reduce Ca and P losses and elevate the levels of serum BAP and OCN; the bone histomorphology analysis results indicated that LLLI could increase BFR and mineral apposition rate (MAR), increase the number of osteoblasts and decrease the number of adipocytes in the bone marrow in the old group. CONCLUSIONS LLLI can effectively improve osteoporosis, increase BMD, improve bone structure and improve bone biomechanical properties in old rats; at the same time, it increases the levels of serum BAP and OCN and the number of osteoblasts in the bone marrow, suggesting that the osteogenesis function of osteoblasts is enhanced.
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Affiliation(s)
- C-T Zhu
- Laser Medical Center, The First People's Hospital of Yunnan Province, The Affiliated Hospital of Kunming University of Science and Technology, Kunming, China.
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18
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Liu L, Zou M. [Electronic probe analysis of enamel remineralization effect of casein phosphopeptide-amorphous calcium phosphate promoted by different concentrations of fluorine]. Zhonghua Kou Qiang Yi Xue Za Zhi 2018; 53:470-474. [PMID: 29996365 DOI: 10.3760/cma.j.issn.1002-0098.2018.07.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Objective: To evaluate the remineralization effect and mechanism of casein phosphopeptide-amorphous calcium phosphate (CPP-ACP) with different concentrations of fluorine on demineralized enamel using electronic probe. Methods: Extracted premolar teeth for orthodontic purpose were immersed into lactic acid gel to prepare artificial white spot lesions (10 teeth in each group). Then the specimens were randomly assigned to three groups: Control group, with 5% of the CPP-ACP+deionized water; Group A with 5% CPP-ACP+500 mg/L F(-) and Group B with 5% CPP-ACP+900 mg/L F(-). The teeth in each group were soaked in different solutions for 4 days and then were measured using electron probe tester. The changes of contents among the three groups were compared. Results: No statistically significant difference in the percentage of fluorine was found in the control group before and after treatment (P=0.06), and the difference in the percentage of fluorine quality in the other two groups was statistically significant (P<0.05). Statistically significant difference was found between calcium oxide and phosphorus peroxide in the three groups before and after mineralization (P<0.05). The percentage change of fluorine mass in group B [(0.107±0.035)%] was significantly greater than that in group A [(0.057±0.038)%] (P<0.05), while fluorine mass in group A was significantly greater than that in control group [(0.013±0.019)%] (P<0.05). In group A and group B, the change in quality of calcium oxide and phosphorus peroxide was significantly greater than that in control group (P<0.05), while no significant difference was found between group A and group B (P>0.05). Conclusions: The addition of fluorine in CPP-ACP increased the transport and penetration of calcium, phosphorus and fluorine on enamel surface.
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Affiliation(s)
- L Liu
- Department of Orthodontics, College of Stomatology, Xi'an Jiaotong University, Xi'an 710004, China
| | - M Zou
- Department of Orthodontics, College of Stomatology, Xi'an Jiaotong University, Xi'an 710004, China
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19
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Borba M, Okamoto T, Zou M, Kaizer M, Zhang Y. Damage tolerance of translucent zirconia after chewing simulation. Dent Mater 2018. [DOI: 10.1016/j.dental.2018.08.030] [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: 10/28/2022]
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20
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Hu SG, Liang AJ, Yao GX, Li XQ, Zou M, Liu JW, Sun Y. The dynamic metabolomic changes throughout mouse epididymal lumen fluid potentially contribute to sperm maturation. Andrology 2017; 6:247-255. [PMID: 29194995 DOI: 10.1111/andr.12434] [Citation(s) in RCA: 5] [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] [Subscribe] [Scholar Register] [Received: 05/26/2017] [Revised: 08/08/2017] [Accepted: 09/18/2017] [Indexed: 12/30/2022]
Abstract
Epididymal lumen fluids are directly responsible for sperm maturation. However, very little is known about the molecular details of small molecule metabolites in the epididymal lumen fluids until now. Here we identified and compared the metabolic profiles of mouse caput and cauda epididymal lumen fluids using GC-MS technique. Among 236 metabolites identified in caput and cauda epididymis, 36 were significantly enriched in caput epididymis while 18 were significantly enriched in cauda epididymis. Pathway analysis identified ascorbate and aldarate metabolism and beta-alanine metabolism as most relevant pathways in caput and cauda epididymis, respectively. Ascorbate, dehydroascorbic acid and beta-alanine associated with these two pathways were firstly reported in mouse epididymal lumen fluids and might play important roles in sperm maturation.
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Affiliation(s)
- S-G Hu
- Reproductive Medical Center, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, China.,Shanghai Key Laboratory for Assisted Reproduction and Reproductive Genetics, Shanghai, China.,Shanghai Key Laboratory for Molecular Andrology, State Key Laboratory of Molecular Biology, Institute of Biochemistry and Cell Biology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, China
| | - A-J Liang
- Reproductive Medical Center, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, China.,Shanghai Key Laboratory for Assisted Reproduction and Reproductive Genetics, Shanghai, China
| | - G-X Yao
- Reproductive Medical Center, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, China.,Shanghai Key Laboratory for Assisted Reproduction and Reproductive Genetics, Shanghai, China.,Shanghai Key Laboratory for Molecular Andrology, State Key Laboratory of Molecular Biology, Institute of Biochemistry and Cell Biology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, China
| | - X-Q Li
- Department of Endocrine, Shanghai Pudong New Area Gongli Hospital, Second Military Medical University, Shanghai, China
| | - M Zou
- Shanghai Key Laboratory for Molecular Andrology, State Key Laboratory of Molecular Biology, Institute of Biochemistry and Cell Biology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, China
| | - J-W Liu
- Reproductive Medical Center, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, China.,Shanghai Key Laboratory for Assisted Reproduction and Reproductive Genetics, Shanghai, China
| | - Y Sun
- Reproductive Medical Center, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, China.,Shanghai Key Laboratory for Assisted Reproduction and Reproductive Genetics, Shanghai, China
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Affiliation(s)
- T An
- Department of Life Sciences and Biopharmaceutics, Shenyang Pharmaceutical University, Shenyang, 110016, China
| | - J Hao
- Department of Blood Purification, General Hospital of Shenyang Military Command, Shenyang, 110016, China
| | - S Sun
- Department of Life Sciences and Biopharmaceutics, Shenyang Pharmaceutical University, Shenyang, 110016, China
| | - R Li
- Department of Life Sciences and Biopharmaceutics, Shenyang Pharmaceutical University, Shenyang, 110016, China
| | - M Yang
- Department of Life Sciences and Biopharmaceutics, Shenyang Pharmaceutical University, Shenyang, 110016, China
| | - G Cheng
- Department of Pharmacy, Shenyang Pharmaceutical University, Shenyang, 110016, China
| | - M Zou
- Department of Pharmacy, Shenyang Pharmaceutical University, Shenyang, 110016, China.
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22
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Zou M, Chen L, Wu C, Hu C, Xiong Y. Pregnancy outcomes in patients with uterine fibroids treated with ultrasound-guided high-intensity focused ultrasound. BJOG 2017; 124 Suppl 3:30-35. [PMID: 28856864 DOI: 10.1111/1471-0528.14742] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/09/2017] [Indexed: 01/05/2023]
Affiliation(s)
- M Zou
- Department of Obstetrics and Gynaecology of Chongqing Haifu Hospital; Chongqing China
| | - L Chen
- Department of Obstetrics and Gynaecology of Chongqing Haifu Hospital; Chongqing China
| | - C Wu
- Department of Obstetrics and Gynaecology of Chongqing Haifu Hospital; Chongqing China
| | - C Hu
- Department of Obstetrics and Gynaecology of Chongqing Haifu Hospital; Chongqing China
| | - Y Xiong
- Department of Obstetrics and Gynaecology of Chongqing Haifu Hospital; Chongqing China
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Huang X, Yu D, Zou M, Wang L, Xing HR, Wang Z. The effect of exercise on high-intensity focused ultrasound treatment efficacy in uterine fibroids and adenomyosis: a retrospective study. BJOG 2017; 124 Suppl 3:46-52. [PMID: 28856860 DOI: 10.1111/1471-0528.14748] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/15/2017] [Indexed: 11/29/2022]
Affiliation(s)
- X Huang
- State Key Laboratory of Ultrasound Engineering in Medicine; Chongqing Key Laboratory of Ultrasound in Medicine and Engineering; College of Biomedical Engineering; Chongqing Medicine University; Chongqing China
| | - D Yu
- Chongqing Haifu Hospital; Chongqing China
| | - M Zou
- Chongqing Haifu Hospital; Chongqing China
| | - L Wang
- Chongqing Haifu Hospital; Chongqing China
| | - HR Xing
- The Institute of Life Sciences; Chongqing Medicine University; Chongqing China
| | - Z Wang
- State Key Laboratory of Ultrasound Engineering in Medicine; Chongqing Key Laboratory of Ultrasound in Medicine and Engineering; College of Biomedical Engineering; Chongqing Medicine University; Chongqing China
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Wu C, Zou M, Xiong Y, Wang L, Chen H, Fan Y, Li C. Short- and long-term efficacy of focused ultrasound therapy for non-neoplastic epithelial disorders of the vulva. BJOG 2017; 124 Suppl 3:87-92. [PMID: 28856863 DOI: 10.1111/1471-0528.14747] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/10/2017] [Indexed: 11/29/2022]
Affiliation(s)
- C Wu
- Haifu Hospital of the First Affiliated Hospital of Chongqing Medical University; Chongqing China
| | - M Zou
- Haifu Hospital of the First Affiliated Hospital of Chongqing Medical University; Chongqing China
| | - Y Xiong
- Haifu Hospital of the First Affiliated Hospital of Chongqing Medical University; Chongqing China
| | - L Wang
- Haifu Hospital of the First Affiliated Hospital of Chongqing Medical University; Chongqing China
| | - H Chen
- Haifu Hospital of the First Affiliated Hospital of Chongqing Medical University; Chongqing China
| | - Y Fan
- College of Biomedical Engineering; Chongqing Medical University; Chongqing China
| | - C Li
- College of Biomedical Engineering; Chongqing Medical University; Chongqing China
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25
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Li XY, Li XY, Kong M, Xu WW, Guo LR, Zou M, Su X, Dong XC, Zhou PH. [Etiology characteristics analysis of the first input human infection of avian influenza H7N9 in Tianjin]. Zhonghua Yu Fang Yi Xue Za Zhi 2017; 51:647-649. [PMID: 28693091 DOI: 10.3760/cma.j.issn.0253-9624.2017.07.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Affiliation(s)
- X Y Li
- Pathogenic Microbiology Institute, Tianjin Centers for Disease Control and Prevention, Tianjin 300011, China
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26
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Lei DJ, Zhao G, Xie P, Li Y, Yuan H, Zou M, Niu JG, Ma XF. Analysis of genetic diversity of Leuciscus leuciscus baicalensis using novel microsatellite markers with cross-species transferability. Genet Mol Res 2017; 16:gmr-16-02-gmr.16029376. [PMID: 28481399 DOI: 10.4238/gmr16029376] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
We used next-generation sequencing technology to characterize 19 genomic simple sequence repeat (SSR) markers and 11 expressed sequence tag (EST) SSR markers from Leuciscus leuciscus baicalensis, a small freshwater fish that is widely distributed in Xinjiang, China. Primers were used to test for polymorphisms in three L. leuciscus baicalensis populations in Xinjiang. There were 4-27 (average 11.3) alleles (NA), the expected heterozygosity (HE) was 0.36-0.94 (average 0.75 ± 0.14), the observed heterozygosity (HO) was 0.37-1.00 (average 0.68 ± 0.18), and the polymorphism information content (PIC) was 0.31-0.93 (average 0.71). The averages of HE and PIC for the EST-SSR markers were slightly lower than for the genomic SSR markers. Genetic analysis of the three populations showed similar results for PIC, HE, and NA. Amplifications were performed in nine other species; the top three transferability values were for Rutilus lacustris (80%), Leuciscus idus (76.7%), and Phoxinus ujmonensis (63.3%), with the following average values: PIC (0.56, 4.46, and 0.52); NA (0.40, 3.00, and 0.32); and HO (0.44, 2.74, and 0.22), respectively. L. leuciscus baicalensis is one of the most important commercial fish in Xinjiang, but in recent years, fishery resources have decreased sharply owing to water conservation projects, unreasonable utilization, and invasion by alien species. These novel SSR markers are appropriate for studies involving fingerprinting, gene flow, genetic diversity, population structure, and molecular-assisted breeding, and could contribute to the conservation of L. leuciscus baicalensis.
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Affiliation(s)
- D J Lei
- College of Fisheries, , , China
| | - G Zhao
- College of Fisheries, , , China
| | - P Xie
- College of Fisheries, , , China
| | - Y Li
- College of Fisheries, , , China
| | - H Yuan
- College of Fisheries, , , China
| | - M Zou
- College of Fisheries, , , China
| | | | - X F Ma
- College of Fisheries, , , China
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Zou M, Bhatia A, Dong H, Jayaprakash P, Guo J, Sahu D, Hou Y, Tsen F, Tong C, O'Brien K, Situ AJ, Schmidt T, Chen M, Ying Q, Ulmer TS, Woodley DT, Li W. Evolutionarily conserved dual lysine motif determines the non-chaperone function of secreted Hsp90alpha in tumour progression. Oncogene 2017; 36:2160-2171. [PMID: 27721406 PMCID: PMC5386837 DOI: 10.1038/onc.2016.375] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2016] [Revised: 08/30/2016] [Accepted: 09/01/2016] [Indexed: 12/16/2022]
Abstract
Both intracellular and extracellular heat shock protein-90 (Hsp90) family proteins (α and β) have been shown to support tumour progression. The tumour-supporting activity of the intracellular Hsp90 is attributed to their N-terminal ATPase-driven chaperone function. What molecular entity determines the extracellular function of secreted Hsp90 and the distinction between Hsp90α and Hsp90β was unclear. Here we demonstrate that CRISPR/Case9 knocking out Hsp90α nullifies tumour cells' ability to migrate, invade and metastasize without affecting the cell survival and growth. Knocking out Hsp90β leads to tumour cell death. Extracellular supplementation with recombinant Hsp90α, but not Hsp90β, protein recovers tumourigenicity of the Hsp90α-knockout cells. Sequential mutagenesis identifies two evolutionarily conserved lysine residues, lys-270 and lys-277, in the Hsp90α subfamily that determine the extracellular Hsp90α function. Hsp90β subfamily lacks the dual lysine motif and the extracellular function. Substitutions of gly-262 and thr-269 in Hsp90β with lysines convert Hsp90β to a Hsp90α-like protein. Newly constructed monoclonal antibody, 1G6-D7, against the dual lysine region of secreted Hsp90α inhibits both de novo tumour formation and expansion of already formed tumours in mice. This study suggests an alternative therapeutic approach to target Hsp90 in cancer, that is, the tumour-secreted Hsp90α, instead of the intracellular Hsp90α and Hsp90β.
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Affiliation(s)
- M Zou
- Department of Dermatology and the Norris Comprehensive Cancer Center, Los Angeles, CA, USA
| | - A Bhatia
- Department of Dermatology and the Norris Comprehensive Cancer Center, Los Angeles, CA, USA
| | - H Dong
- Department of Dermatology and the Norris Comprehensive Cancer Center, Los Angeles, CA, USA
| | - P Jayaprakash
- Department of Dermatology and the Norris Comprehensive Cancer Center, Los Angeles, CA, USA
| | - J Guo
- Department of Dermatology and the Norris Comprehensive Cancer Center, Los Angeles, CA, USA
| | - D Sahu
- Department of Dermatology and the Norris Comprehensive Cancer Center, Los Angeles, CA, USA
| | - Y Hou
- Department of Dermatology and the Norris Comprehensive Cancer Center, Los Angeles, CA, USA
| | - F Tsen
- Department of Dermatology and the Norris Comprehensive Cancer Center, Los Angeles, CA, USA
| | - C Tong
- Eli and Edythe Broad Center for Regenerative Medicine and Stem Cell Research and Department of Cell and Neurobiology, Los Angeles, CA, USA
| | - K O'Brien
- Department of Dermatology and the Norris Comprehensive Cancer Center, Los Angeles, CA, USA
| | - A J Situ
- Department of Biochemistry and Molecular Biology and Zilkha Neurogenetic Institute University of Southern California Keck Medical Center, Los Angeles, CA, USA
| | - T Schmidt
- Department of Biochemistry and Molecular Biology and Zilkha Neurogenetic Institute University of Southern California Keck Medical Center, Los Angeles, CA, USA
| | - M Chen
- Department of Dermatology and the Norris Comprehensive Cancer Center, Los Angeles, CA, USA
- Department of Medical Research, Greater Los Angeles Veterans Affairs Heath Care System, Los Angeles, CA, USA
| | - Q Ying
- Eli and Edythe Broad Center for Regenerative Medicine and Stem Cell Research and Department of Cell and Neurobiology, Los Angeles, CA, USA
| | - T S Ulmer
- Department of Biochemistry and Molecular Biology and Zilkha Neurogenetic Institute University of Southern California Keck Medical Center, Los Angeles, CA, USA
| | - D T Woodley
- Department of Dermatology and the Norris Comprehensive Cancer Center, Los Angeles, CA, USA
- Department of Medical Research, Greater Los Angeles Veterans Affairs Heath Care System, Los Angeles, CA, USA
| | - W Li
- Department of Dermatology and the Norris Comprehensive Cancer Center, Los Angeles, CA, USA
- Department of Medical Research, Greater Los Angeles Veterans Affairs Heath Care System, Los Angeles, CA, USA
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Yu N, Reyes-Rivera I, Hipp J, Zou M, Pillai N, Hammerschmidt S. Real world treatment patterns and outcomes for mNSCLC patients receiving second and third-line therapy in Germany. Ann Oncol 2017. [DOI: 10.1093/annonc/mdx091.052] [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: 11/12/2022] Open
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An T, Hao J, Sun S, Li R, Yang M, Cheng G, Zou M. Efficacy of statins for osteoporosis: a systematic review and meta-analysis. Osteoporos Int 2017; 28:47-57. [PMID: 27888285 DOI: 10.1007/s00198-016-3844-8] [Citation(s) in RCA: 84] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/13/2016] [Accepted: 11/14/2016] [Indexed: 12/14/2022]
Abstract
Our meta-analysis assessed the efficacy of statins on the risk of fracture, bone mineral density (BMD), and the markers of bone metabolism by collecting data from 33 clinical trials. We found that statin treatment was associated with bone metabolism. And statins seemed to be more effective on male patients with osteoporosis. The efficacy of statins for the treatment of osteoporosis has been controversial in previous studies and meta-analyses. Our meta-analysis was conducted to examine in detail the efficacy of statins on osteoporosis. We searched PubMed, Embase, and the Cochrane Library databases for clinical trials from inception to May 2016. We included studies that described the effect of statins on the risk of fracture, BMD, or bone turnover markers. Moreover, we also conducted subgroup analyses according to the skeleton site, patient gender, and length of follow-up. A total of 33 studies which included 23 observational studies (16 cohort studies and 7 case-control studies) and 10 randomized controlled trials (RCTs) were evaluated. These 33 studies included 314,473 patients in statin group and 1,349,192 patients in control group. Statins decreased the risk of overall fractures (OR = 0.81, 95% CI 0.73-0.89) and hip fractures (OR = 0.75, 95% CI 0.60-0.92). Furthermore, the use of statins was associated with increased BMD at the total hip (standardized mean difference (SMD) = 0.18, 95% CI 0.00-0.36) and lumbar spine (SMD = 0.20, 95% CI 0.07-0.32) and improved the bone formation marker, osteocalcin (OC) (SMD = 0.21, 95% CI 0.00-0.42). However, there was no positive effect on vertebral fractures, upper extremity fractures, BMD at the femoral neck, bone-specific alkaline phosphatase (BALP), and serum C-terminal peptide of type I collagen (S-CTX). Also, compared with male subgroups, the effect on female subgroups was only slightly positive or of no statistical significance. Our meta-analysis indicates that statin treatment may be associated with a decreased risk of overall fractures and hip fractures, an increased BMD at the total hip, BMD at the lumbar spine, and OC. Moreover, our results also show that statin treatment may have a greater effect on male patients than on female patients.
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Affiliation(s)
- T An
- Department of Life Sciences and Biopharmaceutics, Shenyang Pharmaceutical University, Shenyang, 110016, China
| | - J Hao
- Department of Blood Purification, General Hospital of Shenyang Military Command, Shenyang, 110016, China
| | - S Sun
- Department of Life Sciences and Biopharmaceutics, Shenyang Pharmaceutical University, Shenyang, 110016, China
| | - R Li
- Department of Life Sciences and Biopharmaceutics, Shenyang Pharmaceutical University, Shenyang, 110016, China
| | - M Yang
- Department of Life Sciences and Biopharmaceutics, Shenyang Pharmaceutical University, Shenyang, 110016, China
| | - G Cheng
- Department of Pharmacy, Shenyang Pharmaceutical University, Shenyang, 110016, China
| | - M Zou
- Department of Pharmacy, Shenyang Pharmaceutical University, Shenyang, 110016, China.
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Hu W, Zhao J, Gong C, Zou M, Yuan JH, Liu XY. [A comparation of efficacy between unilateral laminectomy approach bilateral decompression and traditional total laminectomy decompression in the treatment of lumbar spinal stenosis]. Zhonghua Yi Xue Za Zhi 2016; 96:1673-6. [PMID: 27290708 DOI: 10.3760/cma.j.issn.0376-2491.2016.21.012] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
OBJECTIVES To compare the efficacy between unilateral laminectomy approach bilateral decompression and traditional total laminectomy decompression in the treatment of graft bone fusion and internal fixation for degenerative lumbar spinal stenosis with the unilateral symptoms. METHOD From January 2013 to December 2014, a total of 40 patients with unilateral symptoms of lumbar spinal stenosis were treated in Department of Spinal Surgery Bozhou People's Hospital of Anhui Province. Twenty patients(group A ) were treated by severe symptoms unilateral facetectomy and resection of superior articular and laminectomy and lateral recess decompression, interbody fusion, pedicle screw fixation.Twenty patients(group B ) were treated by total laminectomy interbody fusion and pedicle screw fixation.The time of operation, blood loss of the two groups were recorded.At the same time the visual analog scale (VAS), Oswestry disability index(ODI), Japanese Orthopaedic Association Scores(JOA) before and after operation (3, 6 , 12months) were recorded retrospectively. The effect of surgery were evaluated and compared. RESULT The VAS, JOA, and ODI of group A preoperation is respectively have no significant differences with the group B (P>0.05). The operation time, blood loss in operation of group A was respectively(133.2±25.3) min, (415.0±42.1) ml, significant differences with the group B[(491.0±46.3)ml; (156.2±28.5) min, P<0.05)]. The VAS, JOA, ODI of group A had no significant differences with the group B (P>0.05) at 3, 6 months after operation.The VAS, JOA, ODI of group A was respectively (3.0±0.6), (25.3±5.1), (16.5±1.5)scores, had significant differences with the group B and preoperation (P<0.05) at 12 months after operation. The radiographic data showed that the interbody fusion rate of group A was 100%, and group B was 95%, had significant differences by statistical analysis (P<0.05) at 12 months afer operation. CONCLUSION The improved unilateral laminectomy approach and bilateral decompression have less operation time and blood loss, more satisfactory for the lumbar spinal stenosis patients with the unilateral severe symptoms, the other side moderate stenosis and mild symptoms.The efficacy of lumbar stability and bilateral decompression is better by operation of improved unilateral approach.
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Affiliation(s)
- W Hu
- Department of Spinal Surgery, Bozhou People's Hospital, Anhui 236803, China
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31
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Yan Q, Zhou M, Zou M, Liu WE. Hypervirulent Klebsiella pneumoniae induced ventilator-associated pneumonia in mechanically ventilated patients in China. Eur J Clin Microbiol Infect Dis 2016; 35:387-96. [PMID: 26753990 DOI: 10.1007/s10096-015-2551-2] [Citation(s) in RCA: 71] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2015] [Accepted: 12/07/2015] [Indexed: 12/25/2022]
Abstract
The purpose of this study was to investigate the clinical characteristics of hypervirulent K. pneumoniae (hvKP) induced ventilator-associated pneumonia (VAP) and the microbiological characteristics and epidemiology of the hvKP strains. A retrospective study of 49 mechanically ventilated patients with K. pneumoniae induced VAP was conducted at a university hospital in China from January 2014 to December 2014. Clinical characteristics and K. pneumoniae antimicrobial susceptibility and biofilm formation were analyzed. Genes of capsular serotypes K1, K2, K5, K20, K54 and K57 and virulence factors plasmid rmpA(p-rmpA), iroB, iucA, mrkD, entB, iutA, ybtS, kfu and allS were also evaluated. Multilocus sequence typing (MLST) and random amplified polymorphic DNA (RAPD) analyses were used to study the clonal relationship of the K. pneumoniae strains. Strains possessed p-rmpA and iroB and iucA were defined as hvKP. Of 49 patients, 14 patients (28.6 %) were infected by hvKP. Antimicrobial resistant rate was significantly higher in cKP than that in hvKP. One ST29 K54 extended-spectrum-beta-lactamase (ESBL) producing hvKP strain was detected. The prevalence of K1 and K2 in hvKP was 42.9 % and 21.4 %, respectively. The incidences of K1, K2, K20, p-rmpA, iroB, iucA, iutA, Kfu and alls were significantly higher in hvKP than those in cKP. ST23 was dominant among hvKP strains, and all the ST23 strains had identical RAPD pattern. hvKP has become a common pathogen of VAP in mechanically ventilated patients in China. Clinicians should increase awareness of hvKP induced VAP and enhance epidemiologic surveillance.
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Affiliation(s)
- Q Yan
- Department of Clinical Laboratory, Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - M Zhou
- Department of Clinical Laboratory, Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - M Zou
- Department of Clinical Laboratory, Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - W-e Liu
- Department of Clinical Laboratory, Xiangya Hospital of Central South University, Changsha, Hunan, China.
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Krout D, Dahal R, Pramod A, Sharma B, Foster J, Boateng C, Cha J, Cao J, Zou M, Newman A, Lever J, Vaughan R, Henry L. Cocaine Photo‐affinity Analogs Bind in the S1 Binding Pocket of the Dopamine Transporter Providing a Mechanism for Competitive Inhibition of Dopamine Uptake. FASEB J 2015. [DOI: 10.1096/fasebj.29.1_supplement.768.7] [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: 11/11/2022]
Affiliation(s)
- D Krout
- Basic SciencesUniv of North Dakota Sch of Med & Health SciGrand ForksNDUnited States
| | - R Dahal
- Basic SciencesUniv of North Dakota Sch of Med & Health SciGrand ForksNDUnited States
| | - A Pramod
- Basic SciencesUniv of North Dakota Sch of Med & Health SciGrand ForksNDUnited States
| | - B Sharma
- Basic SciencesUniv of North Dakota Sch of Med & Health SciGrand ForksNDUnited States
| | - J Foster
- Basic SciencesUniv of North Dakota Sch of Med & Health SciGrand ForksNDUnited States
| | - C Boateng
- Med Chem SectionNIDA‐IRPBaltimoreMDUnited States
| | - J Cha
- Med Chem SectionNIDA‐IRPBaltimoreMDUnited States
| | - J Cao
- Med Chem SectionNIDA‐IRPBaltimoreMDUnited States
| | - M Zou
- Med Chem SectionNIDA‐IRPBaltimoreMDUnited States
| | - A Newman
- Med Chem SectionNIDA‐IRPBaltimoreMDUnited States
| | - J Lever
- Research Service Truman Memorial Veterans' HospitalColumbiaMOUnited States
- RadiologyUniv of MissouriColumbiaMOUnited States
| | - R Vaughan
- Basic SciencesUniv of North Dakota Sch of Med & Health SciGrand ForksNDUnited States
| | - L Henry
- Basic SciencesUniv of North Dakota Sch of Med & Health SciGrand ForksNDUnited States
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Xiao WM, Zhao MC, Zou M, Tan YD, Zhang XG. Differences in differential gene expression between young and mature Arabidopsis C58 tumours. Plant Biol (Stuttg) 2014; 16:539-549. [PMID: 24119138 DOI: 10.1111/plb.12092] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2013] [Accepted: 07/06/2013] [Indexed: 06/02/2023]
Abstract
Tumorigenesis of plants triggered by Agrobacterium tumefaciens has been investigated for over a century, but a global study on changes in gene expression in plant tumours during growth and development has received little attention so far due to technical difficulties. Recently a great advance in 'omic' technologies, e.g. microarray, proteome and transcriptome analyses, has allowed differential expression profiling of genes for metabolic regulation during plant tumour growth and development. Deeken et al.(The Plant Cell Online, 18, 3617) and Lee C.-W. et al.(The Plant Cell Online, 21, 2948) used a fold change approach to profile genes differentially expressed (DE) between Arabidopsis inflorescence stalks infected with Agrobacterium strains C58 (carrying T-DNA) or GV3101 (without T-DNA) and control stalks at 3 hours, 6 days and 35 days after inoculation. We utilised ranking analysis of microarray data, a modified t-test approach, to further analyse these microarray data and compared DE gene functioning in photosynthesis, energy, nucleotide, RNA, DNA, protein and lipid metabolism, biological defence, cell wall and signalling pathways in young (6-day-old) and mature (35-day-old) tumours. There were large differences in differential expression of genes for these basic metabolic pathways between young and mature tumours. In young tumours, more genes were up-regulated in most metabolic functional categories than down-regulated, whereas in mature tumours, genes involved in basic and major metabolic pathways were more down-regulated than up-regulated, strongly indicating that relative to the control stalk, many metabolic pathways were enhance in young tumours but decayed or tended to be decayed in mature tumours.
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Affiliation(s)
- W-M Xiao
- Key Laboratory of Horticulture Science for Southern Mountainous Regions, Ministry of Education, College of Horticulture and Landscape Architecture, Southwest University, Chongqing, China
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Zou M, Guo G, Zhao Y, Zhang Q. Detection, quantifications, and pharmacokinetics of ponazuril in healthy swine. J Vet Pharmacol Ther 2014; 37:598-602. [DOI: 10.1111/jvp.12126] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2013] [Accepted: 02/26/2014] [Indexed: 11/29/2022]
Affiliation(s)
- M. Zou
- College of Animal Science and Veterinary Medicine; Qingdao Agricultural University; Qingdao China
| | - G. Guo
- China Institute of Veterinary Drug Control; Beijing China
| | - Y. Zhao
- Qingdao Vland Biotech Inc.; Qingdao China
| | - Q. Zhang
- College of Animal Science and Veterinary Medicine; Qingdao Agricultural University; Qingdao China
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Lu X, An H, Jin R, Zou M, Guo Y, Su PF, Liu D, Shyr Y, Yarbrough WG. PPM1A is a RelA phosphatase with tumor suppressor-like activity. Oncogene 2013; 33:2918-27. [PMID: 23812431 DOI: 10.1038/onc.2013.246] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2013] [Revised: 05/06/2013] [Accepted: 05/20/2013] [Indexed: 12/28/2022]
Abstract
Nuclear factor-κB (NF-κB) signaling contributes to human disease processes, notably inflammatory diseases and cancer. NF-κB has a role in tumorigenesis and tumor growth, as well as promotion of metastases. Mechanisms responsible for abnormal NF-κB activation are not fully elucidated; however, RelA phosphorylation, particularly at serine residues S536 and S276, is critical for RelA function. Kinases that phosphorylate RelA promote oncogenic behaviors, suggesting that phosphatases targeting RelA could have tumor-inhibiting activities; however, few RelA phosphatases have been identified. Here, we identified tumor inhibitory and RelA phosphatase activities of the protein phosphatase 2C (PP2C) phosphatase family member, PPM1A. We show that PPM1A directly dephosphorylated RelA at residues S536 and S276 and selectively inhibited NF-κB transcriptional activity, resulting in decreased expression of monocyte chemotactic protein-1/chemokine (C-C motif) ligand 2 and interleukin-6, cytokines implicated in cancer metastasis. PPM1A depletion enhanced NF-κB-dependent cell invasion, whereas PPM1A expression inhibited invasion. Analyses of human expression data revealed that metastatic prostate cancer deposits had lower PPM1A expression compared with primary tumors without distant metastases. A hematogenous metastasis mouse model revealed that PPM1A expression inhibited bony metastases of prostate cancer cells after vascular injection. In summary, our findings suggest that PPM1A is a RelA phosphatase that regulates NF-κB activity and that PPM1A has tumor suppressor-like activity. Our analyses also suggest that PPM1A inhibits prostate cancer metastases and as neither gene deletions nor inactivating mutations of PPM1A have been described, increasing PPM1A activity in tumors represents a potential therapeutic strategy to inhibit NF-κB signaling or bony metastases in human cancer.
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Affiliation(s)
- X Lu
- Department of Cancer Biology, Vanderbilt University, Nashville, TN, USA
| | - H An
- 1] Department of Cancer Biology, Vanderbilt University, Nashville, TN, USA [2] Division of Surgical Sciences, Vanderbilt University, Nashville, TN, USA
| | - R Jin
- 1] Vanderbilt Prostate Cancer Center, Vanderbilt University, Nashville, TN, USA [2] Department of Urology, Vanderbilt University, Nashville, TN, USA
| | - M Zou
- Division of Otolaryngology, Department of Surgery, Yale University, New Haven, CT, USA
| | - Y Guo
- Department of Cancer Biology, Vanderbilt University, Nashville, TN, USA
| | - P-F Su
- Department of Biostatistics, Vanderbilt University, Nashville, TN, USA
| | - D Liu
- Division of Otolaryngology, Department of Surgery, Yale University, New Haven, CT, USA
| | - Y Shyr
- Department of Biostatistics, Vanderbilt University, Nashville, TN, USA
| | - W G Yarbrough
- 1] Division of Otolaryngology, Department of Surgery, Yale University, New Haven, CT, USA [2] Department of Pathology, Yale University, New Haven, CT, USA [3] Yale Cancer Center, New Haven, CT, USA
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Thakur S, Brake J, Keelara S, Zou M, Susick E. Farm and environmental distribution of Campylobacter and Salmonella in broiler flocks. Res Vet Sci 2013; 94:33-42. [DOI: 10.1016/j.rvsc.2012.07.014] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2012] [Revised: 05/18/2012] [Accepted: 07/07/2012] [Indexed: 11/16/2022]
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Cekanova M, Woraratphoka J, Sukhthankar M, Dharmawardhana S, Siriwardana N, Moustaid-Moussa N, Strom A, Baek SJ, Wong Q, Zou M, Donnell R, Wimalasena J. Abstract 4591: Estrogen receptor beta controls a wide variety of functions in breast cancer cells. Cancer Res 2010. [DOI: 10.1158/1538-7445.am10-4591] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
The role of ER alpha as the mediator of estrogen action in breast cancer (BC) cells is well known, however, the role of ER beta is controversial. The majority of BC expressing ER alpha also express ER beta. Some clinical studies suggest that ER beta expression is a good prognosticator; however, in others, especially where expression levels of ER beta > ER alpha, ER beta may be associated with more advanced BC. Previously, we showed that ER beta may regulate a number of signaling pathways (AACR, 2008). Our recent work demonstrates that ER beta has even wider actions in MCF7 and T47D cells stably overexpressing ER beta. Thus, ER beta decreased phospho (p)/ total Stat1, p Stat3, p Stat5/total Stat5. Expression of the oncogenic miR cluster 17-92 was highly reduced (p<0.01) when ER beta overexpressing vs. control cells were compared. ER beta also decreased PPAR gamma, superoxide dismutase, as well as the concentration of the mRNA processing factor, RBM5, and the activated form of AMPK. All these changes were significant (p<0.05) in triplicate measurements. While ER beta overexpression increased migration through Matrigel, it significantly decreased CXCR4 expression (p<0.05, n=4). All of these effects of ER beta were estrogen-independent. On the other hand, estrogen increased CXCR4 expression in MCF7 cells significantly. In our study, we analyzed the expression of ER beta and BAD using tissue microarrays with normal and neoplastic breast tissue. Our immunohistochemical (IHC) data revealed a significant increase of ER beta cytoplasmic staining in neoplastic cells compared to normal cells (p<0.001). In addition, the nuclear expression of ER beta was significantly decreased in neoplastic cells compared to normal cells (p<0.01). From our correlation analysis of IHC data obtained from tissue microarray, we identified that cytoplasmic expression of BAD was negatively correlated with cytoplasmic expression of ER beta. In addition, the nuclear expression of BAD was significantly positively correlated with nuclear ER beta.
These results suggest that ER beta has a wide variety of actions in BC cells, as predicted by the regulation of 62 miRs (p<0.01) as determined by Exiqon Inc. Taken together our results suggest that ER beta may have a multitude of actions in breast cancer and that the ratio of ER alpha/beta may determine the prognostic outcome.
Citation Format: {Authors}. {Abstract title} [abstract]. In: Proceedings of the 101st Annual Meeting of the American Association for Cancer Research; 2010 Apr 17-21; Washington, DC. Philadelphia (PA): AACR; Cancer Res 2010;70(8 Suppl):Abstract nr 4591.
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Affiliation(s)
| | | | | | - S Dharmawardhana
- 2University of Puerto Rico Medical Sciences, San Juan, Puerto Rico
| | | | | | | | | | - Q Wong
- 4University of Oklahoma, Medical Center, Oklahoma City, OK
| | - M Zou
- 4University of Oklahoma, Medical Center, Oklahoma City, OK
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Purchas R, Zou M. Composition and quality differences between the longissimus and infraspinatus muscles for several groups of pasture-finished cattle. Meat Sci 2008; 80:470-9. [DOI: 10.1016/j.meatsci.2008.01.013] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2007] [Revised: 01/17/2008] [Accepted: 01/21/2008] [Indexed: 11/27/2022]
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Wang H, Zou M, Larson PR, Sanchez ES, Hobbs KL, Curtis ME, Johnson MB, Awitor OK. Nanomechanical properties of a Ni nanodot-patterned surface. Nanotechnology 2008; 19:295708. [PMID: 21730613 DOI: 10.1088/0957-4484/19/29/295708] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Nanomechanical properties of a Ni nanodot-patterned surface (NDPS) on a Si substrate were investigated using nanoindentation. The Ni NDPS was fabricated by thermal evaporation of Ni through a porous anodized aluminum oxide template onto a Si substrate. Plan-view transmission electron microscopy and nanobeam diffraction were used to characterize the Ni nanodot crystal structure. Scanning electron microscopy and atomic force microscopy were used to characterize the morphology and deformation of the Ni nanodots before and after nanoindentation. The elastic modulus and hardness of the Ni nanodots were found to be 159 ± 22 and 7.7 ± 1.0 GPa, respectively. The critical shear stress for initiating plastic deformation in the Ni nanodot was estimated to be 8.3 ± 1.0 GPa, which is close to the theoretical shear strength of 7.6 GPa in dislocation-free single crystal Ni.
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Affiliation(s)
- H Wang
- Department of Mechanical Engineering, University of Arkansas, Fayetteville, AR 72701, USA
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Morel PCH, Janz JAM, Zou M, Purchas RW, Hendriks WH, Wilkinson BHP. The influence of diets supplemented with conjugated linoleic acid, selenium, and vitamin E, with or without animal protein, on the composition of pork from female pigs1. J Anim Sci 2008; 86:1145-55. [DOI: 10.2527/jas.2007-0358] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Shi Y, Zou M, Baitei EY, Alzahrani AS, Parhar RS, Al-Makhalafi Z, Al-Mohanna FA. Cannabinoid 2 receptor induction by IL-12 and its potential as a therapeutic target for the treatment of anaplastic thyroid carcinoma. Cancer Gene Ther 2007; 15:101-7. [PMID: 18197164 DOI: 10.1038/sj.cgt.7701101] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Anaplastic thyroid carcinoma is the most aggressive type of thyroid malignancies. Previously, we demonstrated that tumorigenicity of anaplastic thyroid carcinoma cell line ARO was significantly reduced following interleukin (IL)-12 gene transfer. We suspected that tumor target structure in ARO/IL-12 cells might be changed and such a change may make them more susceptible to be killed through mechanisms apart from natural killer-dependent pathway. To identify genes involved, we examined gene expression profile of ARO and ARO/IL-12 by microarray analysis of 3757 genes. The most highly expressed gene was cannabinoid receptor 2 (CB2), which was expressed eightfold higher in ARO/IL-12 cells than ARO cells. CB2 agonist JWH133 and mixed CB1/CB2 agonist WIN-55,212-2 could induce significantly higher rate of apoptosis in ARO/IL-12 than ARO cells. Similar results were obtained when ARO cells were transfected with CB2 transgene (ARO/CB2). A considerable regression of thyroid tumors generated by inoculation of ARO/CB2 cells was observed in nude mice following local administration of JWH133. We also demonstrated significant increase in the induction of apoptosis in ARO/IL12 and ARO/CB2 cells following incubation with 15 nM paclitaxel, indicating that tumor cells were sensitized to chemotherapy. These data suggest that CB2 overexpression may contribute to the regression of human anaplastic thyroid tumor in nude mice following IL-12 gene transfer. Given that cannabinoids have shown antitumor effects in many types of cancer models, CB2 may be a viable therapeutic target for the treatment of anaplastic thyroid carcinoma.
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Affiliation(s)
- Y Shi
- Department of Genetics, King Faisal Specialist Hospital and Research Center, Riyadh, Saudi Arabia.
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Zou M, Liu X, Li Y, Lai Y. [Experimental study on the migration of vascular endothelial cells stimulated by IL-8]. Sheng Wu Yi Xue Gong Cheng Xue Za Zhi 2006; 23:1013-6. [PMID: 17121343] [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: 05/12/2023]
Abstract
To investigate the influence of different concentrations of IL-8 on the migration of vascular endothelial cells and find out the best IL-8 concentration, the transwell chamber motility assay and the scrape motility assay were applied to observe the migration of vascular endothelial cells induced by IL-8. The results demonstrated that the migration of vascular endothelial cells was increased significantly under different IL-8 concentrations, while the best effect occurred when IL-8 concentration was 100 ng/ml.
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Affiliation(s)
- Minjun Zou
- Institute of Biomedical Engineering, West China Medical Center, Sichuan University, Chengdu 610041, China
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Abu-Amero KK, Alzahrani AS, Zou M, Shi Y. Association of mitochondrial DNA transversion mutations with familial medullary thyroid carcinoma/multiple endocrine neoplasia type 2 syndrome. Oncogene 2006; 25:677-84. [PMID: 16205644 DOI: 10.1038/sj.onc.1209094] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Medullary thyroid carcinoma (MTC) is a malignant tumour of the calcitonin-secreting parafollicular C cells of the thyroid, and occurs sporadically or as a component of the multiple endocrine neoplasia (MEN) type 2/familial medullary thyroid carcinoma (FMTC) syndromes. In the present study, we investigated the frequency of mtDNA mutations in 26 MTC tumour specimens (13 sporadic and 13 familial MTC) and their matched normal tissues by sequencing the entire coding regions of mitochondrial genome. Nonsynonymous mutations were detected in 20 MTC samples (76.9%): nine out of 13 sporadic MTC (69.2%) and 11 out of 13 (84.6%) familial MTC/MEN2. Both transition and transversion types of mutations were found in the samples. Interestingly, 76.2% (16/21) of transversion mutations were found in FMTC/MEN2 patients, whereas 66.7% (12/18) of transition mutations were in sporadic MTC. Synonymous mutations were found in 12 MTC samples. In total, we identified 27 transversion mutations (21 nonsynonymous and six synonymous) in MTC. Of them, 22 (81.5%) were from FMTC/MEN2, and five (18.5%) were from sporadic MTC. The association of transversion mutation with familial MTC/MEN2 was statistically significant (P = 0.0015, binomial test). Majority of the mutations were involved in the genes located in the complex I of the mitochondrial genome, and were often resulting in a change of a moderately or highly conserved amino acid of their corresponding protein. Mitochondrial respiratory function was also compromised in a TT cell line, which carries mtDNA mutation at nt 4917 and 11,720, and in peripheral lymphocytes of MTC patients with mtDNA mutations. These data suggest that mtDNA mutation may be involved in MTC tumourigenesis and progression. Given that mtDNA mutation spectra are different between sporadic and familial MTC, different mechanisms of oxidative DNA damage may occur in the disease process.
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Affiliation(s)
- K K Abu-Amero
- Department of Genetics, King Faisal Specialist Hospital and Research Center, Riyadh, Saudi Arabia
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Zou M, Al-Baradie RS, Al-Hindi H, Farid NR, Shi Y. S100A4 (Mts1) gene overexpression is associated with invasion and metastasis of papillary thyroid carcinoma. Br J Cancer 2006; 93:1277-84. [PMID: 16265347 PMCID: PMC2361511 DOI: 10.1038/sj.bjc.6602856] [Citation(s) in RCA: 67] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Tumour cell invasion and metastasis are the hallmark of malignant neoplasm. S100A4 is a member of small calcium-binding protein family and is involved in the cell proliferation and cancer progression. S100A4 is capable of inducing metastasis in animal models and is associated with aggressive phenotype of human tumours. We previously identified S100A4 as a candidate gene involved in anaplastic thyroid cancer metastasis by microarray analysis. To further determine whether S100A4 overexpression is associated with thyroid tumour invasion and metastasis, in the present study, we examined S100A4 gene expression in six benign multinodular goitres (MNG) and 28 matched samples of adjacent normal thyroid tissue (N), primary (T) and metastatic (M) papillary thyroid carcinomas (PTC) by immunohistochemistry and real-time reverse transcription–polymerase chain reaction (RT-PCR) analysis. This gave us the advantage of directly comparing levels of S100A4 expression within the same genetic background. Using immunohistochemistry, we found that high levels of S100A4 were detected in 24 of 28 (86%) PTC specimens and their local regional lymph node or distant metastases. No S100A4 staining was observed in normal thyroid tissues and simple MNG. However, in MNG coexistent with PTC, moderate focal staining could be found in 11 of 15 MNG adjacent to PTC. The S100A4 was stained more intensely in invading fronts than in central portions of both T and M. Real-time RT–PCR analysis of primary tumours and their matched lymph node metastasis demonstrated that significantly higher S100A4 transcripts were present in metastatic tumours as compared to the primary tumours (P<0.01). These data suggest that overexpression of S100A4 is associated with thyroid tumour invasion and metastasis and it may be a potential target for therapeutic intervention.
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Affiliation(s)
- M Zou
- Department of Genetics, King Faisal Specialist Hospital and Research Center, PO Box 3354, Riyadh 11211, Saudi Arabia
| | - R S Al-Baradie
- Department of Biological and Medical Research, King Faisal Specialist Hospital and Research Center, PO Box 3354, Riyadh 11211, Saudi Arabia
| | - H Al-Hindi
- Department of Pathology, King Faisal Specialist Hospital and Research Center, PO Box 3354, Riyadh 11211, Saudi Arabia
| | - N R Farid
- Osancor Biotech Inc., Watford, Herts WD17 3BY, UK
| | - Y Shi
- Department of Genetics, King Faisal Specialist Hospital and Research Center, PO Box 3354, Riyadh 11211, Saudi Arabia
- Department of Genetics, King Faisal Specialist Hospital and Research Center, PO Box 3354, Riyadh 11211, Saudi Arabia. E-mail:
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Tang H, Pecharsky VK, Samolyuk GD, Zou M, Gschneidner KA, Antropov VP, Schlagel DL, Lograsso TA. Anisotropy of the magnetoresistance in Gd5Si2Ge2. Phys Rev Lett 2004; 93:237203. [PMID: 15601197 DOI: 10.1103/physrevlett.93.237203] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/07/2004] [Indexed: 05/24/2023]
Abstract
The observed magnetoresistance of single crystalline Gd5Si2Ge2 is negative and strongly anisotropic. The absolute values measured along the [100] and [010] directions exceed those parallel to the [001] direction by more than 60%. First principles calculations demonstrate that a structural modification is responsible for the anisotropy of the magnetoresistance, and that the latter is due to a significant reduction of electronic velocity in the [100] direction and the anisotropy of electrical conductivity.
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Affiliation(s)
- H Tang
- Materials and Engineering Physics Program, Ames Laboratory, Iowa State University, Ames, IA 50011-3020, USA
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Ruderman NB, Cacicedo JM, Itani S, Yagihashi N, Saha AK, Ye JM, Chen K, Zou M, Carling D, Boden G, Cohen RA, Keaney J, Kraegen EW, Ido Y. Malonyl-CoA and AMP-activated protein kinase (AMPK): possible links between insulin resistance in muscle and early endothelial cell damage in diabetes. Biochem Soc Trans 2003; 31:202-6. [PMID: 12546685 DOI: 10.1042/bst0310202] [Citation(s) in RCA: 113] [Impact Index Per Article: 5.4] [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: 11/17/2022]
Abstract
Based on available evidence, we would propose the following. (i) Excesses of glucose and free fatty acids cause insulin resistance in skeletal muscle and damage to the endothelial cell by a similar mechanism. (ii) Key pathogenetic events in this mechanism very likely include increased fatty acid esterification, protein kinase C activation, an increase in oxidative stress (demonstrated to date in endothelium) and alterations in the inhibitor kappa B kinase/nuclear factor kappa B system. (iii) Activation of AMP-activated protein kinase (AMPK) inhibits all of these events and enhances insulin signalling in the endothelial cell. It also enhances insulin action in muscle; however, the mechanism by which it does so has not been well studied. (iv) The reported beneficial effects of exercise and metformin on cardiovascular disease and insulin resistance in humans could be related to the fact that they activate AMPK. (v) The comparative roles of AMPK in regulating metabolism, signalling and gene expression in muscle and endothelial cells warrant further study.
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Affiliation(s)
- N B Ruderman
- Diabetes Unit, Section of Endocrinology and Department of Medicine, Boston University Medical Center, Boston, MA 02118, USA.
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Abstract
Three new spirostanol saponins have been isolated from the seeds of Allium tuberosum. On the basis of acid hydrolysis and comprehensive spectroscopic analysis, their structures were established as tuberoside J, (25R)-5alpha-spirostan-2alpha,3beta,27-triol 3-O-alpha-L-rhamnopyranosyl-(1-->2)-beta-D-glucopyranoside; tuberoside K, (25R)-5alpha-spirostan-2alpha,3beta,27-triol 3-O-alpha-L-rhamnopyranosyl-(1-->2)-[alpha-L-rhamnopyranosyl-(1-->4)]-beta-D-glucopyranoside; and tuberoside L, 27-O-beta-D-glucopyranosyl-(25R)-5alpha-spirostan-2alpha,3beta,27-triol 3-O-alpha-D-rhamnopyranosyl-(1-->2)-[alpha-L-rhamnopyranosyl-(1-->4)]-beta-D-glucopyranoside.
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Affiliation(s)
- S Sang
- Institute of Materia Medica, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200031, People's Republic of China
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