1.Treatment of keloid with self-made 32P applicator
Ruqi DAI ; Wenjian YOU ; Shiyun LI ; Huan XIAO
Chinese Journal of Tissue Engineering Research 2009;13(28):5597-5600
OBJECTIVE: To investigate the clinical efficacy of self-made 32P applicator for treating different kinds of keloid. others were treated with surgical excision combined with self-made 32P applicator. The 32P applicator was shaped according to the size and shape of the diseased region and the application time was calculated according to the dose rate and the decay correction. 4.0-5.0 Gy was applied in every diseased region in each of the four days (one course), and 4-6 courses in total was required, with 4 weeks of intervals following each course. For children, dose was reduced to 4 Gy or less once a day in every diseased region. Patients in the operation combined with application group were performed keloids excision first. Then 32P applicators were applied to the wound without any exudation in the same way as above. RESULTS: Of all the 39 patients (lesion thickness≤0.3 cm, 32P applicator therapy only), 32 ones was cured (82.1%), with the total effective rate of 98%. For patients with lesion thickness > 0.3 cm, the total effective rate of 32P applicator therapy and surgical excision combined with self-made 32P applicator were 55.6% and 93.3% respectively, and the difference was ofsignificance (P < 0.01 ). Among these patients, those with disease course less than 9 months had the effective rates of 25.0% and75.0% corresponding to 32P applicator therapy only and surgical excision combined with self-made 32p applicator respectively.For those with long course of disease, the effective rates were 13% and 77% respectively. A total of 26 patients experienced local buming and slight pain during the 32P applicator treatment, and all the symptoms were relieved by using calamine lotion; 5 patients and 2 patients expedencad grade Ⅰ and Ⅱ radio dermatitis respectively, which were relieved by using Mupirocin Ointment. No radio dermatitis of grade Ⅲ or above occurred to any patient. In addition, pigmentation or color changing occurred at local skins of cured patients.CONCLUSION: 32P applicator therapy is safe and effective for treating keloid. For patients with short disease course and lesion thickness ≤0.3 cm, 32P applicator therapy only is enough. Otherwise, patients are suggested to use 32P applicator after operation.
2.Metabolites from the endophytic fungus Penicillium sp. FJ-1 of Ceriops tagal.
Pengfei JIN ; Wenjian ZUO ; Zhikai GUO ; Wenli MEI ; Haofu DAI
Acta Pharmaceutica Sinica 2013;48(11):1688-91
To investigate the chemical constituents of the endophytic fungus Penicillium sp. FJ-1 of Ceriops tagal, the chemical constituents were isolated by column chromatography on silica gel and Sephadex LH-20. Their structures were elucidated on the basis of spectroscopic analysis. Their antibacterial activity was tested by paper disco diffusion method. Two compounds were isolated and identified as 7-hydroxy-deoxytalaroflavone (1), and deoxytalaroflavone (2). Compound 1 is a new compound, and compounds 1 and 2 showed weak activity against Staphylococcus aureus and methicillin-resistant Staphylococcus aureus.
3.Expression of vascular basement membrane-derived multifunctional peptide in Pichia pastoris and identification of its bioactivity
Wenjian DAI ; Man ZHANG ; Shuping PENG ; Jiangu CAO
Chinese Journal of Cancer Biotherapy 2006;0(06):-
Objective: To express vascular basement membrane-derived multiple peptide (VBMDMP) in Pichia pastoris and to identify its bioactivity. Methods: PCR technique was used to obtain the target fragment GST-VBMDMP, which was then cloned into pPIC9K vector. The resultant vector pPIC9K-GST-VBMDMP was transfected into Pichia pastoris cells with spheroplast and the positive recons was identified. The His + Muts transformant was shake-cultured in MGY at 30 ℃. The culture supernatant (1 ml) was collected for preservation at-70 ℃ every 24 hours while maintaining the concentration of methanol at 0.5% in the culture medium. SDS-PAGE analysis was used to detect the protein expression after 8 days and then animal and cell experiments were performed with GST-VBMDMP. Results: SDS-PAGE analysis found that protein express increased during 1-7 days and decreased after 8 days in MGY medium; GST-VBMDMP fused protein was obtained by Glutathione Sepharose 4B and it inhibited the artery endothelial cell tube structure formation in C57BL/6 mouse; GST-VBMDMP( 2, 6, 10 mg/kg)also significantly inhibited the primary cancer Lewis mouse (tumor inhibitor rates being 96.6%, 82.1%, and 61.2%, respectively)and metastatic lung tumors(tumor inhibitor rates being 96.8 %, 87.9 %, and 75.3%, respectively)(P
4.Meta analysis of the association between CYP11 B2 gene polymorphism and left ventricle hypertrophy
Dong LIU ; Yongqiang LAI ; Jinhua LI ; Nengbao WEI ; Jiang DAI ; Wenjian JIANG
Chinese Journal of Thoracic and Cardiovascular Surgery 2013;(1):18-23
Objective To investigate the association between CYP11 B2 gene polymo-rphism and left ventricle hypertrophy with meta analysis.Methods Literatures about the association of CYP11 B2 gene polymorphism and left ventricle hypertrophy from January 1992 to December 2011 were searched.The electronic databases retrieved from Pubmed,Embase,China national knowledge intemet,Chinese biological medicine disk,VIP fulltext database and Wanfang fulltext database.Odds ratio of CYP11 B2 genotype distributions in left ventricle hypertrophy patients comparing with healthy control were analyzed.RevMan5.1 software was applied for investigating hereogeneity among individual studies and summarizing effects with proper statistical methods.Six case control studies were enrolled.Results A total of 541 cases and 553 controls were enrolled for the study.The pooled OR of CC vs TT + TC genotype was 1.15 (95% CI:0.74 ~ 1.80) (Z =0.63,P =0.53) in the subgroup of hypertension,and the pooled OR of CC vs TT + TC genotype was 1.15 (95 % CI:0.74 ~ 1.80) (Z =0.63,P =0.53) in the subgroup of race.The pooled OR of C vs T allele was 1.15 (95% CI:0.76 ~ 1.74) vs 0.87 (95% CI:0.58 ~ 1.31) (Z =0.67,P =O.50).Conclusion Whether the hypertension or the race,the genotype of CYP11 B2 polymorphism has no association with an increased risk of left ventricle hypertrophy.
5.Relationship between Serum Diamine Oxidase Content and Intestinal Motility after Acute Spinal Cord Injury
Sen YANG ; Zheng YANG ; Jingxin YAN ; Zhou XU ; Wenjian XU ; Haiyan TIAN ; Xiaolin DAI ; Ping YANG
Chinese Journal of Rehabilitation Theory and Practice 2017;23(6):634-640
Objective To measure the level of diamine oxidase (DAO), and observe the intestinal motor and mucosal barrier injury after acute spinal cord injury (SCI) in rats. Methods A total of 45 Sprague-Dawley rats were randomly divided into SCI group (group A, n=15), sham group (group B, n=15) and control group (group C, n=15). SCI model was established with Allen's strike mode (10 g × 25 mm) by striking T10 spinal segment in rats. One day, three days and seven days after SCI, hind limb motor function was assessed with Basso-Beat-tie-Bresnahan (BBB) Scale in each group, the myoelectric slow wave and ileum smooth muscle contractility were measured in rats, ileum tis-sues were tested with HE staining, and the DAO content of serum was tested with ELISA kit. Results One day, three days and seven days af-ter SCI, the BBB score was significantly lower in group A than in groups B and C (P<0.001). One day, three days after SCI, the frequency and amplitude of both slow wave and contractility were lower in group A than in groups B and C (P<0.05);seven days after SCI, there was no significant difference among three groups (P>0.05). Group A showed ileal mucosal edema, lodging, inflammatory cell infiltration, and submucosal gap increase. The Chiu's score of intestinal mucosal injury was higher in group A than in groups B and C (P<0.05), as well as the serum DAO content one day and three days after SCI (P<0.05), and no significant difference was found in the serum DAO content among three groups seven days after SCI (P>0.05). Conclusion Serum DAO content may respond to the intestinal motor function and mu-cosal injury after acute SCI in rats.
6.Comparison of Solifenacin and Trospium in Treatment of Overactive Bladder
Wenjian LI ; Xishan ZHU ; Xiaonong DAI
Journal of Medical Research 2017;46(11):145-148
Objective To compare the use of solifenacin and trospium in treatment of overactive bladder (OAB).Methods This prospective study was conducted on patients diagnosed with OAB who presenting to the Department of urology,Changzhou No.3 People's Hospital between March 2015 and May 2016.Patients were randomized into 2 groups.Group A (n =40) received 5 mg solifenacin once daily,while Group B (n =39) received 20 mg trospium twice daily.All the patients' OAB symptom scores (OABSS) in weeks 0,4,and 12 were recorded.In addition,side effects of the drugs were evaluated.Results Average OABSS was determined as:9.3 ± 2.6 (Group A) and 10.2±1.9 (Group B) at week0;2.5±1.3 (GroupA) and 2.7±1.4 (Group B) at week4;and 1.4±0.5 (Group A) and 1.3 ± 0.6 (Group B) at week 12.In addition,no statistically significant difference was found between the scores (P =0.084,P =0.512 and P =0.423).The discontinuation rate of medication due to its side effects was 0 (0%) for Group A,and 5 (12.8%) for Group B.Intragroup changes in the scores 0 weeks-4 weeks,0 weeks-12 weeks and 4 weeks-12 weeks values was statistically significant in both groups (P =0.000).Conclusion No significant difference was found between the OABSS of these 2 drugs.However,discontinuation of drugs due to side effects was more frequent in trospium.
7.Silencing MR-1 attenuates atherosclerosis in ApoE(−/−) mice induced by angiotensin II through FAK-Akt–mTOR-NF-kappaB signaling pathway.
Yixi CHEN ; Jianping CAO ; Qihui ZHAO ; Haiyong LUO ; Yiguang WANG ; Wenjian DAI
The Korean Journal of Physiology and Pharmacology 2018;22(2):127-134
Myofibrillogenesis regulator-1 (MR-1) is a novel protein involved in cellular proliferation, migration, inflammatory reaction and signal transduction. However, little information is available on the relationship between MR-1 expression and the progression of atherosclerosis. Here we report atheroprotective effects of silencing MR-1 in a model of Ang II-accelerated atherosclerosis, characterized by suppression focal adhesion kinase (FAK) and nuclear factor kappaB (NF-κB) signaling pathway, and atherosclerotic lesion macrophage content. In this model, administration of the siRNA-MR-1 substantially attenuated Ang II-accelerated atherosclerosis with stabilization of atherosclerotic plaques and inhibited FAK, Akt, mammalian target of rapamycin (mTOR) and NF-kB activation, which was associated with suppression of inflammatory factor and atherogenic gene expression in the artery. In vitro studies demonstrated similar changes in Ang II-treated vascular smooth muscle cells (VSMCs) and macrophages: siRNA-MR-1 inhibited the expression levels of proinflammatory factor. These studies uncover crucial proinflammatory mechanisms of Ang II and highlight actions of silencing MR-1 to inhibit Ang II signaling, which is atheroprotective.
Angiotensin II*
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Angiotensins*
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Animals
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Arteries
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Atherosclerosis*
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Cell Proliferation
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Focal Adhesion Protein-Tyrosine Kinases
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Gene Expression
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In Vitro Techniques
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Macrophages
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Mice*
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Muscle Development
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Muscle, Smooth, Vascular
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NF-kappa B
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Plaque, Atherosclerotic
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RNA, Small Interfering
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Signal Transduction
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Sirolimus