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Chen Q, Lu W, Zhou D, Zheng G, Liu H, Qian C, Zhou W, Lu J, Ni L, Bao Q, Li A, Xu T, Xu H. Characterization of Two Macrolide Resistance-Related Genes in Multidrug-Resistant Pseudomonas aeruginosa Isolates. Pol J Microbiol 2020; 69:349-356. [PMID: 33574864 PMCID: PMC7810118 DOI: 10.33073/pjm-2020-038] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Revised: 07/31/2020] [Accepted: 08/15/2020] [Indexed: 11/05/2022] Open
Abstract
In analyzing the drug resistance phenotype and mechanism of resistance to macrolide antibiotics of clinical Pseudomonas aeruginosa isolates, the agar dilution method was used to determine the minimum inhibitory concentrations (MICs), and PCR (polymerase chain reaction) was applied to screen for macrolide antibiotics resistance genes. The macrolide antibiotics resistance genes were cloned, and their functions were identified. Of the 13 antibiotics tested, P. aeruginosa strains showed high resistance rates (ranging from 69.5-82.1%), and MIC levels (MIC90 > 256 μg/ml) to macrolide antibiotics. Of the 131 known macrolide resistance genes, only two genes, mphE and msrE, were identified in 262 clinical P. aeruginosa isolates. Four strains (1.53%, 4/262) carried both the msrE and mphE genes, and an additional three strains (1.15%, 3/262) harbored the mphE gene alone. The cloned msrE and mphE genes conferred higher resistance levels to three second-generation macrolides compared to two first-generation ones. Analysis of MsrE and MphE protein polymorphisms revealed that they are highly conserved, with only 1-3 amino acids differences between the proteins of the same type. It can be concluded that even though the strains showed high resistance levels to macrolides, known macrolide resistance genes are seldom present in clinical P. aeruginosa strains, demonstrating that a mechanism other than this warranted by the mphE and msrE genes may play a more critical role in the bacteria's resistance to macrolides.
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Affiliation(s)
- Qing Chen
- The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, Wenzhou, China
| | - Wei Lu
- School of Laboratory Medicine and Life Science, Institute of Biomedical Informatics, Wenzhou Medical University, Wenzhou, China
| | - Danying Zhou
- School of Laboratory Medicine and Life Science, Institute of Biomedical Informatics, Wenzhou Medical University, Wenzhou, China
| | - Guotong Zheng
- The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, Wenzhou, China
| | - Hongmao Liu
- The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, Wenzhou, China
| | - Changrui Qian
- School of Laboratory Medicine and Life Science, Institute of Biomedical Informatics, Wenzhou Medical University, Wenzhou, China
| | - Wangxiao Zhou
- School of Laboratory Medicine and Life Science, Institute of Biomedical Informatics, Wenzhou Medical University, Wenzhou, China
| | - Junwan Lu
- School of Laboratory Medicine and Life Science, Institute of Biomedical Informatics, Wenzhou Medical University, Wenzhou, China
| | - Liyan Ni
- The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, Wenzhou, China
| | - Qiyu Bao
- School of Laboratory Medicine and Life Science, Institute of Biomedical Informatics, Wenzhou Medical University, Wenzhou, China
| | - Aifang Li
- The Fifth Affiliated Hospital, Wenzhou Medical University, Lishui, Zhejiang, China
| | - Teng Xu
- Institute of Translational Medicine, Baotou Central Hospital, Baotou, China
| | - Haili Xu
- The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, Wenzhou, China
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Luo D, Wu G, Ji Y, Zhang Z, He F, Mou X, Zhu Q, Yang B. The comparative study of clinical efficacy and safety of baclofen vs tolperisone in spasticity caused by spinal cord injury. Saudi Pharm J 2017; 25:655-659. [PMID: 28579907 PMCID: PMC5447437 DOI: 10.1016/j.jsps.2017.04.041] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023] Open
Abstract
In the present study we compared the clinical efficacy and safety of baclofen vs tolperisone in spasticity caused by spinal cord injury. A total of 150 patients were enrolled in the present study and were divided into two groups with 75 patients in each group, receiving baclofen or tolperisone, respectively. We used Modified Ashworth Scale, Medical research council scale, Barthel Index, and Coefficient of efficacy to measure clinical efficacy. After 6-week treatment, both groups demonstrated significant improvement in muscle tone, muscle strength and functional outcome (Group I, 1.55 ± 0.053, 2.79 ± 0.032, 59.31 ± 1.32; Group II, 1.57 ± 0.053, 3.04 ± 0.032, 73 ± 1.32 respectively). There was no significant difference regarding improvement in muscle tone and muscle strength between the two groups (Group I, 1.055 ± 0.053 vs Group II, 1.57 ± 0.053; Group I, 2.79 ± 0.032 vs Group II, 3.04 ± 0.032, p > 0.05). However, the improvement in functional outcomes was greater in group II as compared to that in group I (Group I, 59.31 ± 1.32 vs Group II, 73 ± 1.32, p < 0.05). In addition, overall efficacy coefficient was greater for group II as compared to group I (Group I, 3.6 vs Group II, 2.3, p < 0.05). Group I had more side effects compared to Group II. Compared to baclofen, tolperisone offers greater improvement in activities of daily living compared to baclofen.
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Affiliation(s)
- Dejun Luo
- Department of Orthopedics, Jianyang People's Hospital of Sichuan, Jianyang 641400, China
| | - Guoyong Wu
- Department of Orthopedics, Jianyang People's Hospital of Sichuan, Jianyang 641400, China
| | - Yong Ji
- Department of Orthopedics, Jianyang People's Hospital of Sichuan, Jianyang 641400, China
| | - Zhaoyao Zhang
- Department of Orthopedics, Jianyang People's Hospital of Sichuan, Jianyang 641400, China
| | - Fayou He
- Department of Orthopedics, Jianyang People's Hospital of Sichuan, Jianyang 641400, China
| | - Xiaping Mou
- Department of Orthopedics, Jianyang People's Hospital of Sichuan, Jianyang 641400, China
| | - Qingmao Zhu
- Department of Orthopedics, Jianyang People's Hospital of Sichuan, Jianyang 641400, China
| | - Bo Yang
- Department of Orthopedics, Jianyang People's Hospital of Sichuan, Jianyang 641400, China
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Miao M, Tian S, Bai M, Xiang L, Gao J. Effect of Motherwort total alkaloids on the prostate hyperplasia mice model of pathological changes of related tissue morphology induced by the fetal urogenital sinus implants. Saudi Pharm J 2017; 25:601-606. [PMID: 28579898 PMCID: PMC5447446 DOI: 10.1016/j.jsps.2017.04.030] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
Aim The research was to study the effect of Motherwort total alkaloids on the prostate hyperplasia mice model of pathological changes of related tissue morphology. Results Compared with the model group(MG), Motherwort total alkaloid high, medium dose group(HD, MD) could significantly reduced the pathological changes of the prostate (P < 0.01); Finasteride(FG) and Motherwort total alkaloid low dose group(LD) could significantly reduce the pathological changes of the prostate (P < 0.05); Longbishu capsules(LG), Finasteride, Motherwort total alkaloid medium dose group could significantly reduce the pathological changes of the kidney (P < 0.01); Motherwort total alkaloid low dose group could significantly reduce the pathological changes of the kidney (P < 0.05); Motherwort total alkaloids could improve the pathological changes of the thymus and spleen. Conclusion Motherwort total alkaloid can improve the pathological changes of prostatic hyperplasia in mice.
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Affiliation(s)
- Mingsan Miao
- Departments of Pharmacy, Henan University of Traditional Chinese Medicine, Zhengzhou 450000, Henan, China
| | - Shuo Tian
- Departments of Pharmacy, Henan University of Traditional Chinese Medicine, Zhengzhou 450000, Henan, China
| | - Ming Bai
- Departments of Pharmacy, Henan University of Traditional Chinese Medicine, Zhengzhou 450000, Henan, China
| | - Liling Xiang
- Departments of Pharmacy, Henan University of Traditional Chinese Medicine, Zhengzhou 450000, Henan, China
| | - Jianlian Gao
- Departments of Pharmacy, Henan University of Traditional Chinese Medicine, Zhengzhou 450000, Henan, China
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Miao M, Yan X, Guo L, Shao S. Effects of the Rabdosia rubescens total flavonoids on focal cerebral ischemia reperfusion model in rats. Saudi Pharm J 2017; 25:607-614. [PMID: 28579899 PMCID: PMC5447457 DOI: 10.1016/j.jsps.2017.04.032] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Abstract
The effect of the Rabdosia rubescens total flavonoids on focal cerebral ischemia reperfusion model in rats was observed. The model group, nimodipine group, cerebral collateral group, and large, medium and small dose group of the Rabdosia rubescens total flavonoids were administered with corresponding drugs but sham operation group and model group were administered the same volume of 0.5%CMC, 1 times a day, continuous administration of 7 d. After 1 h at 7 d to medicine, left incision in the middle of the neck of rats after anesthesia, we can firstly expose and isolate the left common carotid artery (CCA), and then expose external carotid artery (ECA) and internal carotid artery (ICA). The common carotid artery and the external carotid artery are ligated. Then internal carotid artery with arterial clamp is temporarily clipped. Besides, cut the incision of 0.2 mm from 5 cm of the bifurcation of the common carotid artery. A thread Line bolt is inserted with more than 18-20 mm from bifurcation of CCA into the internal carotid artery until there is resistance. Then the entrance of the middle cerebral artery is blocked and internal carotid artery is ligated (the blank group only exposed the left blood vessel without Plugging wire). Finally it is gently pulled out the plug line after 2 h. Results: Compared with the model mice, Rabdosia rubescens total flavonoids can significantly relieve the injury of brain in hippocampus and cortex nerve cells; experimental rat focal cerebral ischemia was to improve again perfusion model of nerve function defect score mortality; significantly reduce brain homogenate NOS activity and no content, MDA, IL-1, TNF-a, ICAM-1 content; increase in brain homogenate SOD and ATPase activity (P < 0.05, P < 0.01); and reduce the serum S-100β protein content. Each dose group of the Rabdosia rubescens total flavonoids has a better Improvement effect on focal cerebral ischemia reperfusion model in rats.
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Affiliation(s)
- Mingsan Miao
- Departments of Science and Technology, Henan University of Traditional Chinese Medicine, Zhengzhou 450046, China
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Zhou B, Sun G, Mei F, Xu H. The effects of low-molecular-weight heparin on lung and pulmonary artery injuries in acute pulmonary embolism rat model via platelet-derived growth factor-β. Saudi Pharm J 2017; 25:564-569. [PMID: 28579892 PMCID: PMC5447452 DOI: 10.1016/j.jsps.2017.04.024] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Objective To evaluate the effects of anticoagulant agent (low-molecular-weight heparin, LMWH) on the pulmonary artery intima hyperplasia of rats with acute pulmonary embolism (APE) by assaying platelet-derived growth factor-β (PDGF-β). Methods A total of 90 Sprague-Dawley rats were randomly assigned into the sham, APE, and LMWH groups with 30 rats in each group. The APE rat models were established by injecting autologous blood clots via external jugular veins. In each group, six mice were sacrificed at the 1st day (D1), 4th day (D4), 7th day (D7), 14th day (D14), and 28th (D28) subsequent to the induction of APE to collect the lungs. Right ventricle pressure (RVP) and mean pulmonary arterial pressure (mPAP) were measured. Western blot and RT-PCR analyses were used to assess PDGF-β expression at various time points. In addition, changes in lung pathology were evaluated using hematoxylin and eosin (H&E) staining and electron microscope. Results The overall success rate of establishing APE rat models was 85.7% (60/70). There was no difference in mPAP between the sham group and the APE group at the D1, D4, D7, and D14. However, at the D28, mPAP in the APE group was significantly higher than that in the sham group. There was no difference among the three groups regarding RVP. PDGF-β expression were decreased in the LMWH group at all time points compared with the sham and APE groups (P < 0.01). Furthermore, pulmonary embolism, alveolar wall necrosis and hemorrhage, and inflammation were significantly attenuated in the LMWH group compared with the sham and APE groups subsequent to the induction of APE. Conclusion LMWH attenuates lung and pulmonary artery injuries and improves prognosis. Decreased PDGF-β in the lungs may be the important factor in the effects observed.
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Affiliation(s)
- Bing Zhou
- Department of Cardiothoracic Surgery, Zhejiang Provincial People's Hospital, Hangzhou 310014, China
| | - Gaozhong Sun
- Department of Cardiothoracic Surgery, Zhejiang Provincial People's Hospital, Hangzhou 310014, China
| | - Fuyang Mei
- Department of Cardiothoracic Surgery, Zhejiang Provincial People's Hospital, Hangzhou 310014, China
| | - Heyun Xu
- Department of Cardiothoracic Surgery, Zhejiang Provincial People's Hospital, Hangzhou 310014, China
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Zhang W, Zheng J, Chen J, Huang L. The influence of connective tissue growth factor on rabbit ligament injury repair. Saudi Pharm J 2017; 25:498-503. [PMID: 28579882 PMCID: PMC5447422 DOI: 10.1016/j.jsps.2017.04.013] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
Objectives The injured anterior cruciate ligament (ACL) is deemed to exhibit an impaired healing response and attempts at surgical repair have not been successful. Connective tissue growth factor (CTGF) is reported to be associated with wound healing, probably through transforming growth factor beta1 (TGF-β1). Methods A rabbit ACL injury model was used to study the effect of CTGF on ligament recovery. Quantitative real-time PCR was performed for detection of changes in RNA levels of TGF-β1, type 1 collagen (COL-I), type 2 collagen (COL-II), SRY-related high mobility group-box gene9 (Sox9), metalloproteinase-1 (TIMP-1) as well as matrix metallopeptidase 13 (MMP-13). And expression of related proteins was detected by western blotting. Results The current study showed that CTGF could promote the recovery of inured anterior cruciate ligament. It can up-regulate the mRNA and expression of TGF-β1, COL-I, COL-II, Sox9, as well as the tissue inhibitor of TIMP-1, and down-regulated the mRNA and expression of MMP-13, suggesting the curative effect of CTGF on injured rabbit ligament is through regulating these cellular factors. Conclusion This finding revealed the mechanism of CTFG’s healing role in injured tissues and provided new possibilities of treating injured tissues and wound healing by using CTFG.
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Affiliation(s)
- Wei Zhang
- Department of Orthopedics, WenZhou Central Hospital, Wenzhou 325000, Zhejiang, China
| | - Junju Zheng
- Department of Orthopedics, WenZhou Central Hospital, Wenzhou 325000, Zhejiang, China
| | - Jiayu Chen
- Shaoxing University Medical School, Shaoxing 312000, Zhejiang, China
| | - Lipeng Huang
- Department of Orthopedics, WenZhou Central Hospital, Wenzhou 325000, Zhejiang, China
- Corresponding author.
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Wang D, Chen Q, Cai F, Pan Q, Li X, Wu Q, Gan Y, Meng F, Luo P. Impacts of triamcinolone acetonide on femoral head chondrocytic structures in lumbosacral plexus block. Saudi Pharm J 2017; 25:492-497. [PMID: 28579881 PMCID: PMC5447409 DOI: 10.1016/j.jsps.2017.04.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
Abstract
Objective: To investigate impacts of triamcinolone acetonide (TRI) on femoral head chondrocytic (FHC) structures when used for lumbosacral plexus block (LPB). Methods: A total of 32 6-month-old New Zealand white rabbits were selected (averagely weighing 2.75–3.25 kg) and added TRI into nerve block solution for LPB. The rabbit were randomly divided into four groups: group A1: 2.5 ml × 2 times, group A2 2.5 ml × 4 times, group B1 5 ml × 2 times, and group B2 5 ml × 4 times; the time interval among the injection was 5 days, and the structural changes of FHC were the observed using 50/100/200 light microscope; the modified Mankin pathological scoring was also performed for the evaluation. Results: There exhibited significant microscopic changes of FHC structures between the rabbits performed LPB and the normal rabbits, among which group B2 exhibited the most serious FHC damages, and the Mankin pathological score in group B2 was much higher than those in the other three groups, and the scores of the experimental group were higher than the control group. Conclusions: The addition of TRI in LPB can damage the FHC structures, and large-dose (5 ml/once) and long-course (four times) will result in more serious injuries.
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Affiliation(s)
- Dashou Wang
- Department of Pain Management, Guizhou Provincial Orthopaedic Hospital, Guiyang 550002, China
| | - Qian Chen
- Department of Pain Management, Guizhou Provincial Orthopaedic Hospital, Guiyang 550002, China
| | - Fengjun Cai
- Department of Pain Intervention, The Third People's Hospital of Guizhou, Guiyang 500002, China
| | - Qi Pan
- Department of Pain Management, Guizhou Provincial Orthopaedic Hospital, Guiyang 550002, China
| | - Xuesong Li
- Department of Pain Intervention, Affiliated 300 Hospital of Guizhou Aviation Group, AVIC, Guiyang 550007, China
| | - Qianming Wu
- Department of Pain Management, Guizhou Provincial Orthopaedic Hospital, Guiyang 550002, China
| | - Yong Gan
- Department of Pain Management, Guizhou Provincial Orthopaedic Hospital, Guiyang 550002, China
| | - Fei Meng
- Department of Pain Intervention, Affiliated 300 Hospital of Guizhou Aviation Group, AVIC, Guiyang 550007, China
| | - Ping Luo
- Department of Critical Care Medicine, Guizhou Provincial Orthopaedic Hospital, Guiyang 550002, China
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Meng F, Xu P, Wang X, Huang Y, Wu L, Chen Y, Teng L, Wang D. Investigation on the immunomodulatory activities of Sarcodon imbricatus extracts in a cyclophosphamide (CTX)-induced immunosuppressanted mouse model. Saudi Pharm J 2017; 25:460-463. [PMID: 28579875 PMCID: PMC5447429 DOI: 10.1016/j.jsps.2017.04.006] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Aims: Sarcodon imbricatus, an edible fungus, is widely used in Asian medicine because of its significant pharmacological activities. In the present study, we investigated the immunomodulatory effects of polysaccharide-enriched S. imbricatus extracts (SP) in cyclophosphamide (CTX)-induced immunosuppressed mice. Results: Astragalus polysaccharide (AP) was used as a positive control. Compared with CTX-induced immunosuppressed mice, thirty-day SP treatment strongly enhanced the organ indexes of spleen and thymus and suppressed hind paw swelling. Both AP and SP increased the serum levels of immunoglobulin (IgA, IgG, and IgM), and suppressed the overproduction of interleukin-2 (IL-2). Moreover, SP reduced methane dicarboxylic aldehyde levels, and increased the total antioxidant capacity, superoxide dismutase, and glutathione peroxidase in both serum and liver tissues of CTX-induced immunosuppressed mice. Conclusion: S. imbricatus extracts significantly improved immune function in CTX-induced immunosuppressed mice via modulation of oxidative systems.
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Affiliation(s)
- Fanxin Meng
- Zhuhai College, Jilin University, Zhuhai 519041, China
| | - Panju Xu
- Zhuhai College, Jilin University, Zhuhai 519041, China
| | - Xue Wang
- School of Life Sciences, Jilin University, Changchun 130012, China
| | - Yu Huang
- School of Life Sciences, Jilin University, Changchun 130012, China
| | - Liyan Wu
- Zhuhai College, Jilin University, Zhuhai 519041, China
| | - Yiling Chen
- Zhuhai College, Jilin University, Zhuhai 519041, China
| | - Lirong Teng
- Zhuhai College, Jilin University, Zhuhai 519041, China.,School of Life Sciences, Jilin University, Changchun 130012, China
| | - Di Wang
- Zhuhai College, Jilin University, Zhuhai 519041, China.,School of Life Sciences, Jilin University, Changchun 130012, China
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