1.Changes of Protein Metabolism in Rat Liver after Scaldingand Effects of Insulin
Journal of Third Military Medical University 1986;0(S1):-
Full thickness scalding of 37% TBSA was inflicted io rats. Three days later, the liver of the animals was isolated and the changes of the protein metabolism in the liver and the effects of insulin on the changes were evaluated.It was found that the protein and DMA levels of the liver showed no obvious changes after scalding, but the RNA content increased by 24% and the rate of leucine incorporation by 31%. After the addition of insulin, the leucine content increased by 23.% and 25.8% in the controls and the injured animals respectively. The results indicate that the rate of protein synthesis in the liver of the scalded animals increases, which is likely to be related to the increase of RNA content, and the liver protein synthesis remains to be sensitive to insulin.
2.Changes of protein Metabolism in Rat Soleus Muscle after Burus and Effects of Leucine and Insulin
Journal of Third Military Medical University 1984;0(01):-
This paper is to report the changes of the protein metabolism in the rat soleus muscle in vitro after 37% TBSA full-thickness burns covering one hindlimb and the effects of leucine and insulin on the burned muscle.It was found that there werea significant decreases of the protein content and marked exaggeration of the rates of tyrosine incorporation,tyrosine release and tyrosine net release in the burned muscle.No changes of the above-mentioned parameters could be revealed in the muscle of the unburned limb and the controls.Elevation of leucine concentration in the medium could not improve the protein metabolism of the burned muscle.0.1u/ml of insulin could significantly stimulate the tyrosine incorporation in the muscle of the unburned limb and the controls,but no similar effect was observed on the burned muscle.The results indicate that increased protein degradation of the local burned muscle is responsible for the postburn negative nitrogen balance;administration of leucine alone cannot improve the protein metabolism in the local burned muscle;and the sensivity of the burned muscle to insulin is suppressed.
3.The effects of enteral feeding and parenteral nutrition on the 19S regulator in skeletal muscle of the scald rats
Yinling TAN ; Shiliang WANG ; Yanling DONG
Chinese Journal of General Surgery 2000;0(12):-
Objective To study the effectrve approach of the nutrition support in burn patients. Methods The means of immuno-precipitation-deduction,ELISA and fluore-photometion were used to test the change of activities,protein expression of the 19S regulator and the rate of protein degradation in skeletal muscle in scard rats with enteral feeding or parenteral nutrition. Results Compared with parenteral nutrition , enteral feeding could markedly reduce the activity and protein expression of the 19S regulator ,and the digeneration of skeletal muscle was also lower. Conclusions The early enteral feeding can distinctly inhibit the system of 26S proteasome , thereby reduce the protein degradation of skeletal muscle in scald rats,which may be benefical to the metabolic modulation of the burned patients.
4.Effects of TNF? on 26S proteasome and 19S regulator in skeletal muscle of the severely scalded rats
Yinling TAN ; Shiliang WANG ; Yanling DONG ;
Journal of Third Military Medical University 1983;0(04):-
Objective To explore the mechanism of negative nitrogen balance in the treatment after burns. Methods The means of immuno precipitation deduction and ELISA were used to test the activities and contents of 26S proteasome and 19S regulator in skeletal muscle of rats inflicted with 30%TBSAⅢ burns. Results TNF? markedly raised the activities and contents of 26S proteasome and 19S regulator in skeletal muscle after scalding. Conclusion TNF? activates the 26S proteasome system in skeletal muscle, thus it enhances the degradation of protein, which is associated with the development of negative nitrogen balance following scalding.
5.Short term results of gastric bypass in the treatment of type 2 diabetes mellitus
Jun YAN ; Guanglong DONG ; Yanling YANG
Chinese Journal of General Surgery 2012;27(2):148-150
Objective To evaluate gastric bypass on relieving type 2 diabetes mellitus. Methods From September 2009 to September 2010,Thirty two cases of type 2 diabetes mellitus patients underwent gastric bypass operation in Xijing Hospital.Preoperative FBG,2hPG,HbAlc,weight,blood pressure and fatty liver were compared with that on 1 month,6 months,12 months after operation. Result There was no significant postoperative complications.FBG on 1 month,6 months,12 months postop and preoperative level was respectively 7.8 ± 2.2,7.7 ± 2.2,7.2 ± 1.8 and 11.1 ± 2.7 ( mmol/L),P < 0.05.2hPG was 10.2 ± 2.6,10.5±2.8,10.5 ±3.1 and 14.0 ±3.5 (mmoL/L),P<0.05.HbAlc was 7.6% ±1.4%,7.5% ± 1.7%,7.1% ±1.9% and9.0%±2.3%,P<0.05.FBG[(6.9±1.5) mmol/L],2hPG[(10.0±3.2) mmol/L] and HbAlc[ (6.9% ± 1.9% ) ] on 12 months after operation were lower than preoperative[ FBG ( 10.7 ± 2.9 ) mmol/L,2hPG ( 14.3 ± 4.1 ) mmol/L,HbAlc ( 8.8% ± 2.0% ) ] in patients with BMI <25 kg/m2 (P < 0.05 ).In patients with preoperative BMI ≥ 25 kg/m2,FBG ( 7.5 ± 2.3 ) mmol/L,2hPG ( 11.3 ±2.9) mmol/L HbAlc (7.3% ± 1.9% ),12 mos pest were lower than that of preoperative levels of [FBG(11.7 ±2.3) mmol/L,2hPG(13.5 ±2.4) mmol/L,HbAlc(9.2% ±2.7%)] (P <0.05).Postoperative blood pressure became normal in 5 out of 6 patients complicating preoperative high blood pressure as evaluated on 12 months after operation. Fatty liver ameliorated in 8 out of 17 patients.Conclusions Gastric bypass significantly improves glycometabolism and comorbidity in type 2 diabetes patients.
6.Effects of Methylphenidate in Children with ADHD:an Event-related Potentials Comparison Study
Yanling REN ; Xuan DONG ; Suhong WANG
Chinese Mental Health Journal 1992;0(01):-
Objective:To investigate the effect of methylphenidate on the ERP waveform of children with attention deficit hyperactivity disorder(ADHD) between responders and non-responders and it's psychological significance.Methods:ERP elicited by the continuous performance test were recorded before and under methylphenidate treatment in 28 ADHD children and their behavioral performance were collected simultaneously.Based on the behavioral results,the patients were divided into two groups:responders and non-responders.Results:After medcation,the responders' behavioral performance were significantly better,amplitude of NOGO-P3(30.24?10.78?v) were also larger than that of before treatment(20.34?11.42?v,P=0.04);No significant differences were found in the behavioral performance and NOGO-P3 amplitude before and after treatment(23.51?11.97?v/25.88?13.96?v,P=0.61) in the non-responders group.The amplitude of NOGO-N2 of the two groups did not have significant difference before and under methylphenidate treatment.Off medication,there were no differences between responders and non-responders.Conclusion:Methylphenidate can improve the ability of response inhibition in responders as well as increase the amplitude of NOGO-P3 of them.
7.Protective effects of extracts from leaves of Canarium pimela Leenh on myocardial ischemia-reperfusion in- jury in rats
Lingyun ZHENG ; Bohong CENG ; Yanling LIANG ; Fenzhu LV ; Yanfen DONG
The Journal of Practical Medicine 2017;33(6):885-889
Objective To study the effect of liquid extracts from leaves of Canarium pimela Leenh on myo-cardial ischemia-reperfusion injury in rats. Methods The langendorff isolated perfused heart system was applied in this study. Ligating of the left descending anterior for 35 min,followed with 100 min or 50 min reperfusing to set up the cardiac ischemia-reperfusion injury model (I/R). After perfusing the effective pharmacological extracts of leaves of Canarium pimela Leenh(CPL)to the isolated heart,we monitored the cardiac parameters of left ventricu-lar systolic pressure(LVSP),left ventricular end-diastolic pressure(LVEDP)and left ventricular maximal rise/fall of left ventricular pressure(±dp/dtmax)in the following assays with or without 10 min CPL pretreatment. 1. the cardiac parameters,2. the cardiac parameters in 35 min ischemia,followed with 10 min or 50 min reperfusion,3. the incidence of ventricular fibrillation or ventricular tachycardia after 10 min reperfusion,4. the activity of creatine kinase(CK)and lactate dehydrogenase(LDH)in the coronary effluent after 10 min reperfusion,5. pathological analysis in the I/R,CPL and VER group after reperfusion. Results CPL pretreatment improved functions of normal left heart. Furthermore,it significantly reduced LVEDP and +dp/dtmax,the incidence of ventricular fibrillation or ventricular tachycardia,as well as the activities of CK and LDH in coronary effluent induced by ischemia-reperfusion compared with the I/R model. Moreover,CPL pretreatment markedly alleivated the pathological changes of ischemia-reperfusion. Conclusions The liquid extracts of leaves of Canarium pimela Leenh can effectively relieve the myocardial ischemia-reperfusion injury in rats.
8.Survey on prevalence rate of surgical site infection in different levels of hospitals
Lingli YU ; Lili DING ; Peng WANG ; Yanling ZHU ; Xunan DONG
Chinese Journal of Infection Control 2015;(6):403-405
Objective To explore the occurrence of surgical site infection(SSI)in patients in different levels of hospitals.Methods SSI among patients in 47 hospitals at 0:00-24:00 of May 16,2012 were investigated by medi-cal record reviewing,doctor inquiry,and bed-side visiting.Results A total of 5 977 surgical patients were investiga-ted,SSI prevalence rate was 1 .76%.SSI prevalence rate in secondary hospitals was higher than tertiary hospitals (χ2 =9.337,P =0.002);SSI prevalence rates in clean-contaminated and contaminated incision in secondary hospi-tals were both higher than tertiary hospitals (χ2 =4.315,8.129,both P <0.05);departments with high SSI preva-lence rates were general surgery,orthopedic,and neurosurgery;the major isolated pathogens were Escherichia coli , Staphylococcus aureus ,and coagulase negative Staphylococcus .Conclusion SSI rates of different types of incision and different departments are varied,corresponding prevention and control measures should be taken.
9.The modified corneal ulcer debridement combining with anti-fungal medcines for fungal keratitis
Dianqiang WANG ; Yanling DONG ; Jing ZHAO ; Xinjie ZANG ; Lixin XIE
Ophthalmology in China 1993;0(03):-
Objective To explore the clinical efficacy of modified corneal ulcer debridement combining with anti-fungal agents in the treatment of keratomycosis(fungal corneal ulcer).Design Prospective case series.Participants Criteria for inclusion:1)fungal corneal ulcer was diagnosed under direct 10% KOH wet film microscopic examination;2)corneal ulcer located away from the center with superficial infiltration,or located in the center but in small size;3)depth of corneal infiltration was uncertain.From January,2007 to December,2009,141 cases of fungal corneal ulcer patients in Shandong Eye Institute affiliated to Qingdao Eye Hospital were recruited into this study.Methods All patients received modified corneal ulcer debridement including stripping off ulcer lesion as well as infiltrated tissue,and repairing ulcer fringe.For postoperative treatment,0.25% amphotercin B or 5% natamycin and 0.5% fluconazol eye drops were topically administrated with high frequency to the diseased eye.In the meantime,itraconalzole was orally taken as systematic treatment.Clinical efficacy of the above therapy was evaluated at last.Main Outcome Measurs Corneal ulcer infiltration,corneal epithelium reparation and recovery of vision acuity were closely observed following surgery.Results 10% KOH wet film examination showed that hypha was found in all of the 141 cases.The average time for postoperative follow-up was 29 days(from 14 to 60 days).All 141 cases of fungal corneal ulcer were completely healed,of which 127 cases were healed by taking corneal ulcer debridement surgery and anti-fungal medication,and the other 14 cases had to take penetrating keratoplasty(10 cases) or lameller keratoplasty(4 cases) due to uncontrolled infection.No recurrence was found during follow-up.The average time for healing in the 127 cases was 8.5 days,and among these cases,29 cases had a preoperative visual acuity below 0.05,80 cases between 0.05 and 0.3,and 32 cases between 0.3 and 1.0.Postoperative evaluation showed that 6 cases had a visual acuity below 0.05,42 cases between 0.05 and 0.3,93 cases(65.96%) between 0.3 and 1.0,and among 93 cases,81 cases(57.45%) had a visual acuity between 0.5 and 1.0.Conclusions The modified corneal ulcer debridement combining with anti-fungal agents has proved to be an effective treatment for fungal corneal ulcer.It greatly improves patient's visual acuity and shortens the disease duration.For cases of superficial or uncertain infiltration,corneal ulcer debridement enables better ulcer observation and provides guidance for further treatment.
10.An event-related potentials study on children with attention deficit hyperactivity disorder before and after EEG biofeedback therapy
Yanling REN ; Suhong WANG ; Ling MA ; Xuan DONG
Chinese Journal of Behavioral Medicine and Brain Science 2011;20(12):1057-1059
Objective To examine the curative effect of EEG biofeedback therapy on children with attention deficit hyperactivity disorder (ADHD),and to investigate the neural mechanism underlying the executive function in children with ADHD.Methods 42 children with ADHD participated a Go/Nogo task before and after the EEG biofeedback therapy which was consisted of 20 times of treatments.The curative effect was evaluated using the behavioral and electrophysiological indexes associated with the Go/Nogo processing in the experiment.Results Commission error significantly decreased after the therapy ( (2.95 ±2.22 ) vs (4.65 ±4.47),P<0.05 ).Latencies of P2 ( (210.00 ± 27.54) ms vs ( 228.27 ± 34.17 ) ms) and N2 components ( ( 310.59 ± 45.82) ms vs (328.00 ± 42.27)ms) elicited by Go trials significantly exhibited shorter at the end of therapy.Additionally,the amplitude of N2 component elicited by Nogo trials exhibited significantly decreased after therapy ((0.23 ±3.79)μV vs (-1.84 ± 4.23 ) μV,P < 0.05).Conclusion The EEG biofeedback therapy is effective in debasing the hyperactivity/impulsive behaviors and improving the ability of target detection,which may be beneficial to the attention ability and conflict detecting in children with ADHD.EEG biofeedback is an effective treatment to ADHD.