1.Quantitation of platelet GPIIb/IIIa occupancy and its application in analysis of patients with leukemia
Chinese Journal of Laboratory Medicine 2003;0(11):-
Objective To quantitate platelet GPIIb/IIIa occupancy and to evaluate the performance of the method, and investigate GPIIb/IIIa occupancy for the patients with leukemia.Methods GPIIb/IIIa occupancy was quantified by flow cytometry (FCM) and the method was evaluated according to guidelines published by NCCLS and ICSH; meanwhile,GPIIb/IIIa occupancy for 13 healthy donors and 16 patients with acute leukemia was investigated.Results The results demonstrated coefficients of variation (CV) for within-batch, between-batch and overall imprecision were
2.The Study on the Expression of CD14 and TLR4 in Peripheral Blood Monocytes during the Different Stage of Cancer Patients
Zhihui CAI ; Yi PEI ;
Journal of Medical Research 2006;0(12):-
Objective To explore the expression of CD14 and TLR4 ( Toll like receptor - 4) in peripheral blood monocytes during the different stage of cancer patients. Methods The expression of TLR4 and CD14 on peripheral blood monocytes was determined by flow cytometry in 50 healthy control group and 80 patients with malignant tumor who were divided into stable group and advanced group according to the change of the size of tumor measured by image and/or the outcome of tumor makers. Results No significant difference was found in the expression level of CD14 between the different stage of malignant tumor ( stable group and advanced group) and healthy controls [ (6. 1600% ? 2. 32217% ,5. 8629% ? 1. 91896% ) vs (5. 5580% ? 1. 42272% ) ]. The expression of TLR4 in stable group had no significant difference as compared with control group [ ( 10. 4444 ? 3. 16225 ) % vs (8. 8780 ? 5. 24612) % ]. The expression of TLR4 in advanced group was significantly higher than that in controls and stable group [ ( 14. 7286 ? 6. 95213 ) % vs ( (8. 8780 ? 5. 24612) % , ( 10. 4444 ? 3. 16225) % ) (P
3.Kidney transplantation for treating lower urinary tract abnormality A follow-up in 4 cases
Xiangke PEI ; Ming CAI ; Bingyi SHI
Chinese Journal of Tissue Engineering Research 2008;12(31):6158-6160
BACKGROUND: Lower urinary tract abnormality (LUTA) can lead to end-stage renal disease (ESRD). However, insufficient attention has been paid to these patients in China, and they are usually thought unsuitable for kidney transplantation because of high incidences of graft dysfunction and septic complication.OBJECTIVE: To explore the characteristics and postoperative follow-up after kidney transplantation in four patients with LUTA.DESIGN, TIME AND SETTING: A retrospective analysis of LUTA cases was performed from July 2002 to June 2006 at the Organ Transplantation Center of Chinese PLA, Second Affiliated Hospital of General Hospital of Chinese PLA.PARTICIPANTS: Four ESRD cases of LUTA, who received allograft kidney transplantation.METHODS: Four cases of LUTA experienced detail evaluation before kidney transplantation. Ureter was reimplanted into the original bladder during transplantation and suprapubic cystostomy was performed as urinary drainage.MAIN OUTCOME MEASURES: Patient and graft survival, graft function, urinary tract infection (UTI) and graft rejection were supervised after surgery and quality of life was evaluated.RESULTS: Two patients recovered well with normal renal function and no rejection. Despite the moderate but easily controlled UTI, they handled the urinary diversion well and were satisfied with the quality of life. One patient experienced an acute rejection 17 days after transplantation and survived with functional graft until now after the rejection was reversed. One patient lost the graft for repeated hemorrhage at the site of vascular anastomosis, and then returned to hematodialysis.CONCLUSION: Kidney transplantation is suitable but special for patients with LUTA. Careful evaluation before transplantation, suitable urinary drainage and rigorous follow-up after surgery are keys to the success of kidney transplantation for this subgroup of patients.
4.Missed Monteggia fractures in children: pathological mechanism and surgical treatment
Pei ZENG ; Jianping YANG ; Xiuzhi REN ; Shaohua CAI ; Zhongli ZHANG
Chinese Journal of Orthopaedics 2012;32(5):457-461
ObjectiveTo evaluate and compare the outcomes of missed Monteggia fractures in children treated with ulnar angulation-distraction osteotomy and plate fixation or external fixation.Methods Nineteen patients,including 11 boys and 8 girls who presented with missed Monteggia fracture,were reviewed from July 2005 to June 2011.Twelve children (Group A) were treated with ulna angulation osteotomy and plate fixation,and 7 eases(Group B) with ulna angulation-distraction osteotomy and external fixator.Thirteen patients were classified as type Bado Ⅰ,and six as type Bado Ⅲ.The age,the delay from injury to surgery,complications,elbow and forearm function,and the healing time of the osteotomy were compared.ResultsAll 19 patients were followed up.The duration of missed dislocation was from 6 to 36 months (mean,10 months).Redislocation of the radiocapitellar joint occurred after surgery in one case in group A.Forearm compartment syndrome occurred in one case after surgery in group B.All patients,except one,regained full elbow flexion in group A and B,various forearm pronation limitation were noted in all patients (mean,15°).The average healing of osteotomy of group A and B was 8 weeks(6-15 weeks) and 22 weeks (10-44 weeks).ConclusionThe ulnar angulation-distraction osteotomy could correct the ulnar deformity in children of missed Monteggia fractures,which is the key issue to be corrected.Both of the fixation strategies can obtain the same treatment results.Preoperative assessment is most important,plate internal fixation was recommended for young age and short delay cases,on the contrary,we prefer to choose external fixator.
7.Effect of Chronic Unpredictable Mild Stress and Sertraline on Vitamin D Metabolism in Rat Prefrontal Cortex
Xiaoxue GONG ; Ruili DANG ; Yujin GUO ; Hualin CAI ; Pei JIANG
Herald of Medicine 2017;36(6):606-609
Objective To explore the relationship between vitamin D and depression and the effects of chronic unpredictable mild stress (CUMS) plus sertraline on vitamin D metabolism in rat brain.Methods Male SD rats were randomly divided into normal control group,normal control + sertraline group,CUMS group and CUMS+sertraline group.CUMS was used to build the animal model of depression.After chronic exposure to CUMS or sertraline (8 mg·kg-1·d-1) for 6 weeks,behavioral response (sucrose preference test) and vitamin D metabolism in the prefrontal cortex were analyzed.Results Compared with normal control group,6 weeks of CUMS procedure induced the rats to a depression-like state,decreased weight and sucrose preference,and increased the expression of enzymes involved in vitamin D activation and catabolism (CYP27B1 and CYP24A1,respectively) and vitamin D receptor (VDR) in rat prefrontal cortex.As compared with CUMS group,CYP27B1,CYP24A1 and VDR were significantly decreased in CUMS+sertraline group (P<0.01 or P<0.05).Conclusion CUMS activates vitamin D signaling in the brain of the animal models of depression,while sertraline alleviates depressive behavior and relieves stress-induced activation of vitamin D signaling,indicating that vitamin D signaling may be involved in the stress-induced depression.
8.Effects of ginsenoside Rg1 on free amino acids in brain of sports fatigue-mice
Ying WANG ; Donglian CAI ; Li MA ; Suping PEI ; Min LIU
Parenteral & Enteral Nutrition 2004;0(05):-
Objective: To study the effect and possible mechanism of Ginsenoside Rg1 in sports CNS fatigue and dose-response relationship.Methods: Kun Ming male mice were divided randomly into 6 groups: control group and five different doses groups(5,10,20,40,80 mg/kg).They were treated orally with Ginsenoside Rg1 for 2 weeks.The levels of amino acids of brain tissue were tested after swimming for 90 min and the exhaustive swimming time were recorded.Results: The levels of BCAA and the ratio of BCAA/AAA in groups 5,10 and 20 mg/kg were significantly higher than control group and the levels of AAA in groups 5,10,20 and 40 mg/kg were significantly decreased.The exhaustive swimming time in groups 5,10 and 20 mg/kg were much longer than in control group.Conclusion: Through adjusting the ratio of BCAA and AAA and decreasing the level of excitatory amino acids neurotransmitter,Ginsenoside Rg1 can elevate movement ability and resist against CNS fatigue.The roles of mid-low and low doses may be better.
9.Effects of prevention and treatment on atrophic gastritis in rats with Zengshengxiao Capsules
Lin PEI ; Diangui LI ; Chunjiang CAI ; Guojie HU ; Zhenbin LI
Chinese Traditional Patent Medicine 1992;0(07):-
Objective:To study the protective and therapeutic effects of Zengshengxiao Capsules (ZSX) on atrophic gastritis in rats. Methods: The model was established by methods of active immunity and gastrogavage with bile and hot water. The method of acetic acid writhing was used. Results: (ZSX) had actions of promoting the blood flow of gastric mucosa, increasing in pH, inhibiting inflammatory cell infiltration, glandular atrophia and atypical hyperplasia. It also had action of alleviating pain. There were no toxic and side effects. Conclusion: (ZSX) had remarkably preventive and therapeutic effects on atrophic gastritis of rats.
10.Effects of lipopolysaccharide on the tryptophan-kynurenine metabolic pathway
Lihong ZHANG ; Pei JIANG ; Huande LI ; Hualin CAI ; Lingjuan CAO
Chinese Journal of Behavioral Medicine and Brain Science 2015;24(8):673-676
Objective To investigate the effects of lipopolysaccharide(LPS) on the tryptophan-kynurenine(TRP) metabolic pathway in rat brains and provide new evidence for the relationship between inflammation and depression.Methods Rats in LPS group were given a single dose of 3.5 mg/kg LPS.while the rats in control group were given the same dosage of saline.The dialysis in ventro-hippocampus were collected by microdialysis within 8 hours and then the TRP,KYN and KA were detected by LC-MS/MS.And the expression of indoleamine 2,3-dioxygenase was detected by Western-blot.Results The level of TRP((550.15± 107.96) pmol/L) and KYN ((337.95±62.73) pmol/L) showed a time-dependent increase after administration LPS 4 h compared with the control group(TRP (368.38±59.31) pmol/L,KYN (172.80±43.96) pmol/L),while KA level in the circulation exhibited a trend to decrease,especially at 7 h ((3.47±0.62) pmol/L,P<0.05).The ratio of KYN/TRP significantly increased at about 5 h (0.69±0.11,P< 0.05),and an ratio of KA/KYN (0.02±0.00) was dramatically decreased after administering LPS 4 h compared with the control group (0.05±0.01)(P<0.05).Most of the analytes showed more dramatic changes around 4 h to 8 h.LPS group(1.48±0.37) increased the protein expression of indoleamine 2,3-dioxygenase compared with the control group(1.00±0.24) (P<0.01).Conclusions LPS may cause tryptophan metabolic abnormalities and accelerate the way of kynurenine metabolism,leading to decreased the kynurenic acid status.