1.Research advances in induced pluripotent stem cells in Alzheimer's disease
Chinese Journal of Tissue Engineering Research 2017;21(21):3426-3431
BACKGROUND:Induced pluripotent stem cell (iPSC) technique is a newborn technology reprogramming human somatic cells into pluripotent stem cells, which can be used in disease modeling, drug screening and cell therapy. OBJECTIVE: To analyze the feasibility and advances of iPSC application in Alzheimer's disease, and conclude the insufficient and future of this technology. METHODS:CNKI and PubMed were searched for relevant articles concerning Alzheimer's disease and iPSCs, and the retrieval results were screened by relativity and repeatability. Finally, 30 articles were included in result analysis. RESULTS AND CONCLUSION: This review concludes the superiority of iPSC technology in the treatment of neurodegenerative diseases and in vivo harvest of nerve cells. The use of inducible pluripotent stem cells differentiated from patient's own cells is more practicable, but there are still many problems to solve at this stage, such as high-efficient and stable directional differentiation, safety of induced pluripotent stem cells, the most appropriate donor cells, and ethical disputes.
2.Effect of health education on diabetics with role lack
Songlin WU ; Shiqi TANG ; Yarong HAO ; Gangyan ZHU
Chinese Journal of Health Management 2012;06(5):315-317
Objective To improve self-management of diabetics with role lack.Methods A total of 121 diabetics with role lack were enrolled and received mass education and individual counseling.Serum levels of glucose and lipid profiles and body mass index (BMI) were assessed and compared before and after intervention by using paired t test.Results Knowledge on diabetes ( 79.37 ± 12.45 vs 31.69 ± 9.36,t =2.860,P < 0.05) and self-management skills ( 9.21 ± 2.85 vs 4.43 ± 1.72,t =2.812,P < 0.05 ) were significantly improved after receiving health education,although fasting plasma glucose [ ( 6.3 ± 1.8 ) vs (8.1 ±2.1) mmol/L,t =2.736,P <0.05],2-h postprandial blood glucose [(8.1 ±3.7) vs (12.8 ±4.1)mmol/L,t =3.549,P < 0.05 ],glycosylated hemoglobin Alc [ (6.4 ± 2.5 ) % vs (7.1 ± 2.7 ) %,t =2.603,P < 0.05 ],total cholesterol [ ( 5.2 ± 2.3 ) vs ( 6.3 ± 2.4 ) mmol/L,t =2.036,P < 0.05 ],triglyceride [(1.7±0.7) vs (2.4±0.8) mmol/L,t=2.368,P<0.05] and BMI [(25.6±6.2) vs (27.3±6.5)kg/m2,t =2.546,P < 0.05 ] were largely decreased.Conclusion Health education could improve selfmanagement and cure of diabetic patient with role lack.
3.Role of ROCK inhibitor in corneal reconstruction:promoting the proliferation, migration and adhesion of keratocytes
Shiqi ZHANG ; Yunfei ZHU ; Yonglong GUO ; Jiafu ZHENG ; Jiansu CHEN
Chinese Journal of Tissue Engineering Research 2015;(33):5383-5388
BACKGROUND:With the deepen understanding on the biological function of Rho/ROCK pathway, new ROCK inhibitors continue to be discovered, and ROCK inhibitors show good promoting effects on the survival, proliferation and migration of keratocytes. Research on ROCK inhibitors wil provide more donor materials or seed cels for regenerative medicine and clinical cel transplantation. OBJECTIVE:To summarize and explore the progress in the treatment and application of corneal disease using the ROCK inhibitors Y-27632 and Y-39983. METHODS:The PubMed database and CNKI database were retrieved by computer to search the relevant literature published between 2008 to 2015 using the key words of “corneal endothelial cel, corneal epithelial cel, ROCK inhibitor, Y-39983, Y-27632” in English and Chinese, respectively. Relevant articles in line with the theme were screened and analyzed. RESULTS AND CONCLUSION:Totaly 264 papers were initialy searched. At last, 45 papers were selected. Currently there are two main ROCK inhibitors: Y-27632 and Y-39983, but both of which are stil in basic research stage and clinical testing stage. Y-27632 promotes the proliferation and activity of corneal epithelial stem cel after resuscitation; Y-39983 as a novel ROCK inhibitor can be better to inhibit Rho kinases activity than Y-27632, thereby more effectively promoting the healing of the corneal endothelium. There are many studies on the application of ROCK inhibitors in corneal treatment, but not a stable method established to obtain seed cels. Each method has its own advantages and disadvantages, and how to overcome these disadvantages and to find fast and stable access to seed cels is the future direction of development.
4.Effect of Shen-fu injection on pulmonary contusion rabbits
Hongjun ZHU ; Shudong YU ; Jingkang HE ; Shiqi LU
Chinese Journal of Primary Medicine and Pharmacy 2009;16(9):1542-1543,插1
Objective To investigate the effects of Shen-fu injection on pulmonary contusion rabbits. Meth-ods Sixteen rabbits were randomly divided into 2 groups: the treatment group (Shen-fu group) and the control group. The animals were induced the pulmonary contusion models. After 60min, the animals in Shen-fu group re-ceived Shen-fu injection received 5 ml/kg, and those in control group 5 ml/kg LRS. The animals were killed six hours later, the right lung tissue wet-to-dry (W/D) ratio and myeloperoxidase (MPO) activity were obtained,the pro-tein expression of nuclear factor-kappa B (NF-κB) and intercellular adhesion molecule-1 (ICAM-1) were also detec-ted. Results The lung tissue W/D, MPO, and the protein expression of NF-κB and ICAM-1 were decreased evi-dently in Shen-fu group (P<0. 01). The morphologic and ultrastructural damages in Shen-fu group were milder than in control group. Conclusion Shen-fu injection is effective on pulmonary contusion rabbits.
5.The morphologic changes and significance of interstitial cells of Cajal-like cells in the bladder of diabetic guinea pig
Qinzhang WANG ; Shiqi JI ; Guodong ZHU ; Yunfei LI ; Zhiqiang CAI ; Yinglong LI ; Jiangping WANG ; Guofu DING
Chinese Journal of Clinical and Experimental Pathology 2009;(6):631-634
Purpose To clarify the morphologic changes and significance of interstitial cells of Cajal-like cells in the bladder of diabetic guinea pig.Methods The experimental guinea pigs were induced by a single intraperitoneal injection of streptozotocin(STZ).The diabetic guinea pig model, who were made succesful for 4 weeks, were detected through the urodynamic evaluation.The distribution of ICCs-like cells in the detrusor, which were taken from these guinea pigs,were quantitatively analyzed after frozen section and indirect immunofluorescence methods and observed by electron microscopy.Results In the diabetic group, the maximum detrusor pressure was signifently lower than controls (P<0.01), maximum bladder capacity, compliance, residual volume and leak point pressures was significently higer than controls (P<0.05 or P<0.01);In detrusor, compared with control, the ICCs-like cells of diabetes group showed significently decreased in quantity. In diabetic bladder, the quantity of gap junctions between ICCs-like cells and cells around,such as smoth muscle cells,terminal nerves and other ICCs-like cells,decreased significently.And more cavities and less organoids occurred in cytoplasm of diabetic ICCs-like cells. Mitochondria became swollen or even disapeared, accompanied with swollen endocytoplasmic reticulum.Conclusion The decrease and injures of ICCs-like cells in bladder may be one of the mechanisms resulting in urodynamic changes of diabetic cystopathy.
6.Clinical characteristics and prognostic analysis of aortoesophageal fistula
Haibo LANG ; Shiqi ZHANG ; Junming ZHU ; Shan LI ; Xue CHEN ; Jin SHI ; Lijian CHENG ; Haiou HU
Chinese Journal of Digestive Endoscopy 2015;(5):304-307
Objective To investigate the pathogenesis,diagnosis,treatment and prognosis of aort-oesophageal fistula(AEF).Methods Retropective analysis was performed on 6 patients presenting with AEF between January 2002 and December 2014,and relative literature was reviewed on its pathogenesis,di-agnosis,prognosis and treatment.Results Five men and 1 woman with a mean age of 49 (range,27-71 years)were recruited to the study.One case of AEF was caused by esophageal foreign body,2 cases were caused by aneurysm while the other 3 patients presented AEF after aortic surgery.All 6 patients showed he-matemesis,among whom 3 presented sentinel hemorrhage,1 presented exsanguination after sentinel hemor-rhage,2 presented sudden exsanguination.Among 4 patients with sentinel hemorrhage,2 accompanied with chest pain,1 with dysphagia and 1 with fever.Two patients had a history of hypertension.Diagnostic rate was nearly 100% by gastroscopy or CT/CTA.Four patients died from hemorrhagic shock and 2 patients re-covered from surgery.Conclusion AEF should be seriously considered for patients with a history of hyper-tension,aortic disease or esophageal foreign body presenting sentinel hemorrhage,chest pain,dysphagia,fa-tal exsanguination followed by symptom-free interval.Prompt examinations and aggressive surgery are of great significance for survival.
7.Resting-state functional MRI on regional homogeneity changes of brain in the heavy smokers
Shiqi YANG ; Guangyao WU ; Fuchun LIN ; Xiangquan KONG ; Guofeng ZHOU ; Haopeng PANG ; Ling ZHU ; Guobing LIU ; Hao LEI
Chinese Journal of Radiology 2012;46(3):215-219
Objective To explore the mechanism of self-awareness in the heavy smokers(HS)by using regional homogeneity(ReHo)combined with resting-state functional MRI(fMRI).Methods Thirty HS and 31 healthy non-smokers(NS)matched for age and sex underwent a 3.0 T resting-state fMRI.The data were post-processed by SPM 5 and then the ReHo values were calculated by REST software.The ReHo values between the two groups were compared by two-sample t-test.The brain map with significant difference of ReHo value was obtained.Results Compared with that in NS group,the regions with decreased ReHo value included the bilateral precuneus,superior frontal gyrus,medial prefrontal cortex,right angular gyrus,inferior frontal gyrus,inferior occipital gyrus,cerebellum,and left middle frontal gyrus in HS group.The regions of increased ReHo value included the bilateral insula,parahippocampal gyrus,white matter of parietal lobe,pons,left inferior parietal lobule,lingual gyrus,thalamus,inferior orbital gyrus,white matter of temporal-frontal lobe,and cerebellum.The difference was more obvious in the left hemisphere.Conclusions In HS,abnormal ReHo on a resting state which reflects network of smoking addiction.This method may be helpful in understanding the mechanism of self-awareness in HS.
8.Evidence mapping of exercise rehabilitation in patients undergoing surgery for valvular heart disease
Rongxiang ZHANG ; Yuan CHEN ; Chenyang ZHU ; Feng TIAN ; Shiqi CHEN
China Modern Doctor 2024;62(25):47-52
Objective The existing evidence of exercise rehabilitation in patients undergoing surgery for valvular heart disease was analyzed,described and evaluated by using evidence mapping methods.Methods Systematic reviews and randomized controlled trials on exercise rehabilitation of patients undergoing valvular heart disease surgery were searched from CNKI,Wanfang Data,VIP,CBM,Embase,PubMed,Cochrane Library,Web of Science,Ovid,CINAHL and other databases,and the search period was established until April 23,2024.The quality of the included literature was evaluated,and the feature information of the included literature was visualized in the form of bubble map and table.Results Fifty-one literatures(including 44 randomized controlled trials and 7 systematic evaluations)were finally included.Among the 44 randomized controlled trials,the types of exercise were mainly related to anaerobic exercise(3 literatures),aerobic exercise(11 literatures),flexibility training(8 literatures),and multisport exercise(22 literatures);postoperative inpatient rehabilitation accounted for a relatively high proportion(16 literatures),followed by overall postoperative rehabilitation(13 literatures)and pre-operative prehabilitation(7 literatures).Twenty-seven conclusions were categorized as"beneficial",15 as"possibly beneficial,"and one ach as"unclear"and"no effect".Seven systematic evaluations were subjected to Meta-analysis,and in terms of the design of the included studies,there were only 3 systematic reviews that included randomized controlled trials.Of the study conclusions,three were"beneficial",three were"possibly beneficial"and one was"unclear".Conclusion The evidence mapping shows that exercise rehabilitation is generally beneficial or potentially beneficial in the rehabilitation of valvular heart disease surgery,mainly in the postoperative inpatient rehabilitation phase.High-quality studies are needed to further investigate the effectiveness of exercise programs with different intensities,frequencies,and durations,as well as different valve types,adverse effects of exercise,and other outcome indicators.
9.A Meta-analysis of the effect of mindfulness intervention on patients after PCI
Shiqi CHEN ; Yuan CHEN ; Feng TIAN ; Chenyang ZHU ; Rongxiang ZHANG
China Modern Doctor 2024;62(32):66-70
Objective To evaluate the effect of mindfulness-based intervention in patients after percutaneous coronary intervention(PCI)through Meta-analysis.Methods Nine databases,including CNKI and PubMed,were searched for randomized controlled trials on the effect of mindfulness intervention in patients after PCI,and the search period was from the establishment of the database to May 31,2024.Two researchers independently screened the literature,extracted data and evaluated the quality,and used Revman 5.4 software for Meta-analysis.Results A total of 11 randomized controlled trials involving 998 patients were included.The results of Meta-analysis showed that compared with conventional care,the use of mindfulness-based intervention therapy could positively improve patients'postoperative anxiety,perceived stress level,mindfulness awareness and other indicators.In terms of safety measures,the incidence of cardiac adverse events was not statistically significant compared with usual care(P>0.05).Conclusion Mindfulness intervention has a significant effect in patients after PCI.
10.Distribution of vascular endothelial growth factor gene polymorphism in Uyghur Ethnic patients with urolithiasis in south Xinjiang
Yuefu HAN ; Qinzhang WANG ; Guofu DING ; Biao QIAN ; Jiangping WANG ; Yinglong LI ; Zhao NI ; Xinmin WANG ; Shunming XIE ; Wenxiao WANG ; Zongyue CHEN ; Guodong ZHU ; Shiqi JI ; Yujie WANG ; Niwaer AN ; Guanglu SONG ; Hui WEI ; Qunying ZHANG
Chinese Journal of Urology 2010;31(9):601-603
Objective To determine vascular endothelial growth factor(VEGF)-460 gene polymorphism in Uyghurs and its relationship to urolithiasis in south Xinjiang. Methods Polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP),gene sequencing and genetic analysis methods were used in 200 urolithiasis patients of Uyghurs, and 200 healthy Uyghurs. Results The distribution of genotype and allele had no significant difference between urolithiasis patients and normal controls (P>0. 05). The frequencies for the CC,TT and CT genotypes in patients with urolithiasis and normal controls were 1.5 %, 29.0 %, 69.5 % and 0. 5 %, 27.5 %, 72.0 %, respectively. The frequencies for C and T allele were 36.2%,63.7% and 36.9% ,63.1%, respectively. Conclusions The results of VEGF-460 gene polymorphisms indicate no significant relationship between patients with turolithiasis and normal controls in Uyghurs in south Xinjiang,which may not be urolithiasis susceptibility genetic locus.