1.The curative effects of autograft and allograft in anterior cruciate ligament reconstruction
Junjun YANG ; Yizhao ZHOU ; Shu HUANG ; Duo XIA ; Renfeng LIU ; Baorong LIU
The Journal of Practical Medicine 2017;33(16):2702-2706
Objective To investigate gender differences in the curative effects of allograft and autologous hamstring tendon in anterior cruciate ligament reconstruction. Methods One hundred and forty-eight patients with the anterior cruciate ligament injury received surgical treatment were enrolled from January 2011 to January 2015 and divided into two groups,including group M(Men)and group W(Women). Patients in each group were also divided in the allograft group (Group A) and the autologous hamstring tendon group (Group B). The patient condition was separately assessed with the Lysholm,Tegner,VAS score and the value of KT-1000 before and after surgery. Results All patients received an average of 16(13-18)-month follow-up visit. No severe complication , such as blood-vessel and nerve injury ,infection and rupture of graft ,occurred in patients after operations. Compared with those before operation,the Lysholm,Tegner,VAS score and the value of KT-1000 after operation in four groups were significantly improved (P < 0.05,respectively). However,no significant differences were found in the Lysholm,Tegner,VAS score and the value of KT-1000 improvement among group MA,MB,WA and WB post treatment(P>0.05). Conclusions The curative effect of ACL reconstruction between allograft ligament and autologous hamstring tendon has no significant difference in gender. The selection of graft should be considered in more aspects.
2.Effects of ziprasidone and risperidone on cognitive inhibition function through visual pathway of patients with paranoid schizophrenia
Xu CHEN ; Maoqin TANG ; Renfeng WANG ; Aizhen WANG ; Zengxun LIU ; Wei YOU ; Gaoyan SHI
Chinese Journal of Behavioral Medicine and Brain Science 2012;21(8):716-718
ObjectiveTo explore the effects of ziprasidone and risperidone on cognitive inhibition function through visual pathway of patients with paranoid schizophrenia.MethodsIn the open-label,flexible-dosage trial,124 patients with paranoid schizophrenia were randomly divided into ziprasidone group (120-160 mg/d)and risperidone group(4-8 mg/d) for treatment of 8 weeks.They were assessed with computerized Color Word Test (CWT) and Continuous Performance Test(CPT) through visual pathway for cognitive inhibition function,Positive and Negative Syndrome Scale for efficacy on baseline and 8th weekend.ResultsAfter treatment with ziprasidone,the error number (3.12 ± 5.23 ),the time per correct answer( ( 1.92 ± 1.38 ) s) of CWT,as well as the doubledigit mistaken number (2.31 ± 3.76)and the three-figure mistaken number( 3.15 ±2.80) of CPT reduced more than those before medication ( (4.60 ± 6.80),( 2.74 ± 1.52 ) s,(3.85 ± 3.62 ),(4.42 ± 3.53 ) ) (P < 0.05 ).In risperidone.group,the double-digit mistake number of CPT(3.39 ± 3.59) after pharmacotherapy reduced more than that before pharmacotherapy(4.23 ± 3.88) (P< 0.05).After treatment the time per correct answer of CWT and the mistaken numbers of CPT in ziprasidone group were less than those in risperidone group(P< 0.05 ),meanwhile,the scores of PANSS in two groups were significantly lower than those before treatment (P < 0.01 ).ConclusionIt is effective for ziprasidone and risperidone to improve the function of cognitive inhibition on patients with paranoid schizophrenia,but there is more dramatic for ziprasidone in short-term treatment.
3.The impact of bundles of care on complications and unplanned extubation rate of neonatal in PICC
Tian SHI ; Ling LI ; Xia CAO ; Ying LIU ; Renfeng LI ; Li HUANG ; Youxia YU
Chongqing Medicine 2014;(24):3189-3191
Objective To study the effects of bundles of care on complications and unplanned extubation rate of neonatal in PICC .Methods 116 cases of neonatal which didn′t accept the bundles of care ware group A ,the other 93 cases of neonatal which accepted the bundles of care ware group B .Two groups were observed and compared on the incidence of complications and un-planned extubation rate and so on .Results The complications in A group treatment were 70 cases(60 .3% ) ,while there were 25 ca-ses in group B(26 .9% ) ,the group B was significantly lower than the group A (P<0 .05) .Mechanical phlebitis ,catheter occlusion , catheter ectopic and other aspects of ectopic group B were significantly lower than in group A (P<0 .05) .The rate of unplanned ex-tubation and catheter blockage in group B were significantly lower than A (P<0 .05) .The total rate of ectopic and right basilic vein ectopic rate in group B were all significantly lower in group A (P<0 .05) .Group B unplanned extubation rate and catheter blockage weresignificantlyloweringroupA(P<0.05).Gestationalagedidn′thaveimpactoncomplications(P>0.05),birthweightand catheter days had more impact on neonatal complications (P<0 .05) .Conclusion The cluster management can reduce the incidence of neonatal PICC complications ,reduce unplanned extubation rates ,better play the role of PICC ,try to arrange an experienced staff of medical operations for children of low birth weight newborns .
4.Effects of three-dimensional spheroid culture system on biological characteristics of mouse bone marrow mesenchymal stem cells
Xin HE ; Xue LI ; Huijing BAO ; Renfeng WANG ; Yunde LIU ; Shiwei SONG
Chinese Journal of Tissue Engineering Research 2014;(45):7227-7232
BACKGROUND:Bone marrow mesenchymal stem cel s have attracted widespread attention for the capabilities of self-renewal and muti-differentiation, which have been used in treatment of various diseases.
OBJECTIVE:To study the effect of three-dimensional spheroid culture system on the stemness and senescence of bone marrow mesenchymal stem cel s.
METHODS:Mesechyaml stem cel s were isolated from the bone marrow of C57/B6 mice, 3 weeks old, and cultured onto the culture plates coated with or without chitosan. After 5 days of culture, the cel phenotype and expression of stemness related markers CD44 and Sca-1 were analyzed by flow cytometry. PI and Annexin-V staining were used to detect cel apoptosis. Also,β-Gal staining was applied for identification of aging.
RESULTS AND CONCLUSION:The mouse mesenchymal stem cel s began to form spheroids on day 3. The stemness-related markers, including CD44 and Sca-1, expressed higher in spheroid mesenchymal stem cel s than the cel s under normal culturing. Compared with the normal culture group, the apoptosis and senescence of cel s from spheroid culture were lower. The results indicate that the formation of spheroids on chitosan films can increase the stemness, decrease the apoptosis and slow the senescence of mesenchymal stem cel s.
5.Bone marrow mesenchymal stem cell transplantation for treatment of emphysema:intravenous versus intratracheal approach
Xiaojian ZHAO ; Caiping LU ; Weiwei CHU ; Yaxiao ZHANG ; Bing ZHANG ; Qiang ZHEN ; Guoliang TAN ; Renfeng WANG ; Jiabao LIU ; Lin WU
Chinese Journal of Tissue Engineering Research 2015;(14):2211-2215
BACKGROUND:Bone marrow mesenchymal stem cel s transplantation can inhibit experimental emphysema inflammatory reaction and apoptosis, and has been experimental y confirmed to treat severe lung function impairment. OBJECTIVE:To explore the inhibitory effects of bone marrow mesenchymal stem cel s transplantation via different ways on inflammatory reaction and apoptosis due to experimental emphysema. METHODS:Female Wistar rats were randomly divided into control group, intravenous group and endotracheal group fol owing model establishment using fumigation plus intratracheal instil ation of porcine pancreatic elastase. In the latter two groups, bone marrow mesenchymal stem cel s from male rats were injected via the tail vein and the trachea, respectively. In the control group, rats were given PBS via he tail vein and trachea. At 14 days after transplantation, pathological changes of rat lung tissues were observed, cel apoptotic index in alveolar wal cel s and tumor necrosis factorαlevel in the bronchoalveolar lavage fluid were detected. RESULTS AND CONCLUSION:Compared with the control group, in the intravenous and endotracheal groups,the pathological changes of lung tissues were relieved, tumor necrosis factorαlevel and apoptosis index were reduced significantly (P<0.01);but there were no differences between the intravenous and endotracheal groups (P>0.05). These findings indicate that bone marrow mesenchymal stem cel s transplantation via the tail vein and trachea both can exert obvious therapeutic effects on emphysema. Moreover, cel transplantation via the tail vein is more convenient and easier than that via the trachea in the treatment of emphysema.
6.Bone marrow mesenchymal stem cell transplantation suppresses emphysema-induced inflammation and apoptosis
Xiaojian ZHAO ; Caiping LU ; Weiwei CHU ; Qiang ZHEN ; Guoliang TAN ; Yaxiao ZHANG ; Renfeng WANG ; Bing ZHANG ; Jiabao LIU
Chinese Journal of Tissue Engineering Research 2014;(6):906-911
BACKGROUND:Bone marrow mesenchymal stem cells transplantation can change the surrounding microenvironment through paracrine mechanisms, and can be employed for treatment of serious damage to lung function through the promotion of angiogenesis, inhibition of apoptosis and maintaining functional stability of autonomic nervous system. OBJECTIVE:To observe the inflammatory reaction in experimental emphysema and inhibition of apoptosis through bone marrow mesenchymal stem cells transplantation.
METHODS:Twenty-four Wistar female rats were randomly divided into three groups:healthy control group, model group and experimental group. In the latter two groups, smoking and endotracheal instil ation of porcine pancreatic elastase were performed to establish emphysema models. After modeling, bone marrow mesenchymal stem cells were injected via tail vein in the experimental group. Pathological changes of the lung, the level of tumor necrosis factor-alpha and cellnumber in the bronchoalveolar lavage fluid as wel as apoptotic index in lveolar wal s were detected after celltransplantation.
RESULTS AND CONCLUSION:In the model and experimental groups, pathological changes of lung tissues were observed to different extent. The lung pathological changes were slighter in the experimental group than the model group (P<0.01). The level of tumor necrosis factor-alpha and apoptotic index in lung tissue were lower in the experimental group than the model group (P<0.01). These findings indicate that bone marrow mesenchymal stem cells can improve emphysema pathological y through inhibition of inflammatory response and apoptosis in experimental emphysema.
7.Application of dexmedetomidine in intracranial arterial stenting and its influence on the serum myocardial enzyme,cTnI and LVEF
Weijuan WANG ; Ying LIU ; Renfeng DAI ; Xin HAN
Chinese Journal of Primary Medicine and Pharmacy 2018;25(23):2993-2997
Objective To analyze the application of dexmedetomidine in intracranial arterial stenting and its influence on the serum myocardial enzyme ,cardiac troponin I(cTnI) and left ventricular ejection fraction (LVEF). Methods From March 2015 to March 2017,94 cases with intracranial arterial stenting in the People's Hospital of Lishui were divided into control group and observation group by the random number table method ,with 47 cases in each group.The control group was treated with conventional anesthesia ,the observation group was treated with dexme-detomidine.The enzyme creatine phosphate kinase isoenzyme (CK -MB),creatine phosphate kinase (CK),cTnI, LVEF,inflammatory factor, neural function, brain oxygen metabolism and complications in the two groups were compared.Results After surgery,the CK-MB,CK,cTnI levels of the observation group were lower than those of the control group[(35.27 ±4.41) U/L,(488.30 ±61.03) U/L,(3.85 ±0.49) μg/L vs.(46.40 ±5.79) U/L, (611.21 ±76.40)U/L,(4.72 ±0.59)μg/L],the LVEF of the observation group was higher than that of the control group[(45.60 ±5.72)%vs.(43.12 ±5.39)%],the differences were statistically significant (t=10.484,8.619, 7.777,2.163,all P<0.05).The interleukin -6(IL-6) and interleukin -8(IL-8),tumor necrosis factor -α (TNF-α),S-100β,specificity enolization enzyme(NSE),cerebral metabolic rate of oxygen(ERO2),arterial blood oxygen saturation(PaO2),carotid venous blood oxygen saturation (SjvO2) of the observation group were better than those of the control group(t=5.794,6.177,15.065,6.964,5.606,3.147,2.116,2.807,all P<0.05).The inci-dence rate of complication of the observation group was lower than that of the control group (χ2=17.091,P<0.05). Conclusion Application of dexmedetomidine in intracranial arterial stenting can protect myocardium , inhibit the serum levels of myocardial enzyme ,cTnI rise,and is conducive to the recovery of LVEF.