1.The correlation of serum homocysteine and lipid levels with renal function in renal transplant ;patients
Jiayong LI ; Xia PENG ; Li LI
Chinese Journal of Laboratory Medicine 2016;39(9):690-694
Objectives The relationship between homocysteine ( Hcy ) and lipid levels in renal transplant patients was analyzed to investigate the effect of hyperlipidemia on renal function and the importance of lipid monitoring in renal function after renal transplantation.Methods 492 patients outpatient follow-up of renal transplants from November 2014 to April 2015 in the Department of Urology and 221 healthy subjects from Shanghai First People′s Hospital were enrolled and their serum Hcy, Total cholesterol( TC) ,triglycerides( TG) , High density lipoprotein cholesterol( HDL-C) , Low density lipoprotein cholesterol( LDL-C ) were tested.All the subjects were divided into normal group and abnormal group according to the serum Hcy levels.At the same time serum cysteine protease inhibitor C(CysC) level was tested to estimate glomerular filtration rate(eGFR),grouping according to the principle of Chronic Kidney Disease( CKD)《Kidney Disease Outcomes Quality Initiative》( KDOQI) staging criteria.The co-relationship between serum TC, HDL-C, TG, LDL-C levels and the possibilities of high cardiovascular risk factors, and the relationship between of serum Hcy and lipid levers, kidney function were analyzed based on the standard of“2007 China Adult dyslipidemia prevention and treatment guidelines”.Statistical methods using U test、chi square analysis, correlation and multiple regression analysis.Results The serum TC(4.48 -5.85),TG (1.05-1.91),HDL-C(1.33-2.01),LDL-C(2.53-3.72) and Hcy(11.99-20.23) levels in the renal transplantation group were higher than the control group′s TC ( 4.02-5.33 ) , TG ( 0.81-1.74 ) , HDL-C (1.11-1.58),LDL-C(2.21-3.32), Hcy(8.9-12.4) levels.(P=0.00,0.00,0.00,0.00,P<0.01) In the renal transplantation group,serum Hcy levels was negatively correlated with eGFR and HDL-C levels (r=-0.565, -0.197, P<0.01), and was positively correlated with TG levels.(r=0.107, P<0.05) In renal transplantation group ,the serum levels of HDL-C was significant lower in Hcy-abnormal group(1.15-1.77)than the normal group(1.35 -1.97) (P=0.001,P<0.01),while the serum levels of LDL-C (2.51-3.93) was higher than the normal group(2.44 -3.69) (P=0.023,P<0.05).In the renal transplantation group,the count ratio of lipid risk factors in the Hcy-abnormal group (0 item 55.4%,1 item 23.5%,2 items 14.2%,3 items 6.5%,4 items 0.4%)was higher than normal group(0 item 69.8%,1 item 17.2%,2 items 9.1%,3 items 3.9%,4 items 0.0%) ( P=0.019,P<0.05).Ranked serum Hcy levels with cardiovascular risk factors, high-risk factors count ratio of eGFR 45-60 ml/min/1.73 m2 group was significant higher than eGFR 60-89 ml/min/1.73 m2 group in each level(P=0.018,P<0.05).Logistic regression analysis was carried out on the risk factors of serum TG, LDL-C, Hcy levels respectively, the results show that serum TG,LDL-C,Hcy levels and differences in renal function have statistical significance (P=0.00,0.00,0.00,P<0.01).Conclusions The serum TG,LDL-C and Hcy levels in the renal transplantation group were consistent increase and associated with kidney injury.The differences in TG, LDL-C, Hcy levels of renal transplant patients may cause differences in renal function after transplantation.Monitoring of serum lipids and Hcy levels is helpful for forecast the possibility of kidney injury.
2.The significance of serum homocystein test for renal transplant patients
Jiayong LI ; Guodi LIU ; Xia PENG
International Journal of Laboratory Medicine 2016;(2):161-163
Objective To investigate the significance of testing serum homocysteine for renal transplant patients .Methods 445 renal transplant patients from outpatient follow‐up(renal transplant group) and 100 healthy subjects(control group) were enrolled in the study ,whose serum homocysteine(Hcy) ,Cystatin C(CysC) ,creatinine(Cr) were tested .Then according to the eGFR(refered to the principle of NKF‐K/DOQI) patients of renal transplant group were divided into six subgroups .Serum levels of Hcy and Cr were compared among different groups ,and the relationship between serum Hcy concentration and anti‐rejection drugs were ana‐lyzed .Results In the transplant group ,concentrations of Hcy were obviously higher than that in control group(P<0 .05) .There was no significant difference in Hcy concentrations among renal transplants who had taken different anti‐rejection drugs(P>0 .05) . Concentrations of CysC and Cr were significantly associated with Hcy in renal transplant group(r=0 .481 ,0 .456 ,P<0 .05) .There was significant difference between eGFR≥90 subgroup and control group in CysC concentration(P<0 .05) .Conclusion Concen‐tration of Hcy in renal transplant group was obviously higher than that in control group .With the eGFR decreased ,Hcy increased gradually ,and in transplant group was associated with the concentration of CysC and Cr .There was significant difference between eGFR≥90 subgroup and control group in Hcy and CysC concentrations(P<0 .05) .The different anti‐rejection drugs had no effect on serum Hcy levels .
4.Determination of Ginsenoside Rg_1 in Yushangling Capsules by HPLC
Peng ZHANG ; Junlong XIA ; Qiaoru LI
Chinese Journal of Information on Traditional Chinese Medicine 2006;0(08):-
Objective To established a method for the content determination of ginsenoside Rg1 in Yushangling Capsules by HPLC. Methods HPLC was used with the C18 column. The mobile phase was acetonitrile-0.5% phosphoric acid (24∶76). The flow rate was 1.0 mL/min, the column temperature was 25 ℃, and the detection wave was set at 205 nm. Results The calibration curve was linear in the range of 0.05~0.80 ?g. The regression equation was Y =3629375.5X+2517.1, r =0.9998. The average recovery was 100.48% and RSD was 1.59%. Conclusion The method is simple, accurate and suitable for the content determination of ginsenoside Rg1 in Yushangling Capsules.
5.Simultaneous Determination of Icariin and Naringin in Bushen Huayu Extract by HPLC
Lu OUYANG ; Yong XIA ; Peng XIA ; Hongliang LI ; Xuanbin WANG
Herald of Medicine 2014;(9):1224-1226
Objective To establish a method for simultaneous determination of icariin and naringin content in bushen huayu extract by HPLC. Methods Reverse-phase high performance liquid chromatography ( RP-HPLC ) separation was performed one C18 column (4.6 mmí250 mm,5 μm).The mobile phase was acetonitrile containing 0.2%H4PO3(pH=2.9). Gradient elution with a flow rate of 0. 8 mL·min-1 was applied to achieve the separation. The detection wavelength was set at 269 nm,and the column temperature was 30℃. Results Icariin had a good linear range from 0. 3-3. 0μg (r=0. 999 9),the recovery rate was 105. 6%,and RSD was 0. 95%. Naringin was linear within the range of 0. 12-1. 20 μg (r=0. 999 9). The recovery rate was 94. 0%and RSD was 0. 52%. Conclusion The method is simple,stable,accurate,and reproducible,which can be used as the quality control standard for bushen huayue extract.
6.Clinical analysis of occupational methanol poisoning of three cases.
Ping CUI ; Juan GAO ; Qiang HOU ; Peng LI ; Xia LI
Chinese Journal of Industrial Hygiene and Occupational Diseases 2005;23(6):466-467
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poisoning
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chemically induced
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diagnosis
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7.The Modified Toluidine Blue Staining Method for Mast Cell
Yuting LIANG ; Xia PENG ; Kun LIN ; Yue YIN ; Li LI
Progress in Modern Biomedicine 2017;17(24):4601-4605
Objective:This study aimed to identify the morphology of mast cells by using a modified toluidine blue staining scheme,so as to provide a powerful reference for the experimental basis research of mast cells.Methods:Bone marrow-derived mast cells were induced in vitro.After 4 weeks,the cells were collected,fixed,and stained.Mast cells were fixed at different temperature during different time.The optimum condition was determined by comparing the effects of toluidine blue staining.Results:Bone marrow cells were induced to differentiate into mast cells by SCF and IL-3 in vitro.When mast cells were stained with modified toluidine blue staining,the staining effect was better.Mast cells were round or oval and the cell membrane was complete and the cytoplasm was filled with a large number of purple particles.Conclusion:In this study,we successfully applied a modified toluidine blue staining method to mast cells cultured in vitro.The results showed that the condition at 37 ℃ full fixation with staining could reduce the degeneration of mast cells.This method was easy to operate with good stability.It was suitable for the morphological observation of mast cells cultured in vitro.
8.Application value of enhanced recovery after surgery in laparoscopic pancreaticoduodenectomy
Yunqiang CAI ; Qinghong XIA ; Pan GAO ; Yongbin LI ; Bing PENG
Chinese Journal of Digestive Surgery 2016;15(6):552-556
Objective To investigate the application value of enhanced recovery after surgery(ERAS) in laparoscopic pancreaticoduodenectomy (LPD).Methods The retrospective cohort study was adopted.The clinical data of 64 patients who underwent LPD from January 2014 to January 2016 in the Shangjin Hospital of West China Hospital of Sichuan University were collected.Of the 64 patients,41 patients managed with ERAS program between March 2015 and January 2016 were allocated into the ERAS group,23 patients managed with traditional perioperative treatment between January 2014 and Febuary 2015 were allocated into the traditional group.The following indexes were observed:(l) intraoperative status:operation time,volume of intraoperative blood loss,conversion to open surgery,pylorus preservation.(2) Postoperative status:the time to out-of-bed activity,time to postoperative flatus,time of drainage tube removal,postoperative complications (pancreatic leakage,bile leakage,hemorrhage,delayed gastric emptying,abdominal infection,cardiovascular complications),duration of postoperative hospital stay,death within the postoperative 30 days.(3) Follow-up status:incidence of complications after discharge and survival of patients.The follow-up including incidence of complications after discharge and survival of patients was conducted by outpatient examination and telephone interview up to March 2016.Measurement data with normal distribution were presented as (x) ± s and analyzed by t test.Count data were analyzed using the chi-square test or Fisher exact probability.Results (1) Intraoperative status:the operation time,volume of intraoperative blood loss,number of patients with conversion to open surgery and pylorus preservation were (377 ± 38) minutes,(164 ± 48) mL,1,40 in the ERAS group and (392 ± 53) minutes,(152 ±31)mL,2,21 in the traditional group,showing no statistically significant difference between the 2 groups (t =5.02,8.43,x2=1.29,1.29,P > 0.05).(2) Postoperative status:the time to out-of-bed activity,time to postoperative flatus,time of drainage tube removal and duration of postoperative hospital stay were (1.7 ± 0.6)days,(2.5 ± 0.6) days,(5.3 ± 1.7) days,(9.1 ± 1.3) days in the ERAS group and (2.1 ± 0.9) days,(3.8 ±1.2) days,(8.2 ± 2.6) days,(11.9 ± 1.8) days in the traditional group,showing statistically significant differences between the 2 groups(t =-5.28,-7.01,-16.20,-10.67,P < 0.05).The numbers of patients with pancreatic leakage in stage A,B and C,bile leakage,hemorrhage,delayed gastric emptying,abdominal inflection,cardiovascular complications and death in the postoperative 30 days were 8,0,0,0,1,3,0,1,1 in the ERAS group and 5,1,0,1,1,3,2,1,0 in the traditional group,respectively,showing no significant difference between the 2 groups (x2=0.37,1.81,0.18,0.57,3.68,0.18,P >0.05).(3) Follow-up status:the 64 patients were followed up for a median time of 11 months (range,1-25 months).During the follow-up,number of patients complicated with diabetes,local tumor recurrence,liver metastasis and death were 5,4,1,0in the ERAS group and 2,5,2,3 (2 died of tumor recurrence and 1 died of myocardial infarction) in the traditonal group.Conclusion Application of ERAS in the perioperative management of LPD is safe and effective,meanwhile,it can accelerate the recovery of patients who underwent LPD and shorten the duration of hospital stay.
9.Spatial distribution of radiation dose field from mobile CT head scanning
Jinge ZHANG ; Wanlin PENG ; Zhenlin LI ; Chunchao XIA ; Jin PU
Chinese Journal of Radiological Medicine and Protection 2017;37(4):302-305
Objective To identify the spatial distribution of stray radiation from mobile CT head scanning for the purpose of radiation protection.Methods The head series of CareTom mobile CT were scanned and the radiation dose was measured using TLD (LiF:Mg,Cu,P).The isodose maps of radiation dose field were plotted using Matlab software.Results Radiation dose in the front of the mobile CT was slightly higher than that in the back.The maximum value of 0.255 mGy was found to be at 0.5 m from the scanning hole center.Conclusions The stray radiation dose from mobile CT head scanning was relatively low.However in order to avoid the damage to the operators and other medical workers from long-term low dose exposure,it should keep 2 m away from mobile CT,beside or behind,when in operation.
10.Efficacy of two reverse pedicle flaps for repairing soft tissue defects of the finger
Lei XIA ; Yuben XU ; Hongxing ZHANG ; Peng LI ; Liangku HUANG
Chinese Journal of Microsurgery 2017;40(2):134-138
Objective To observe the effect of two reverse pedicle flap repaired soft tissue defect of the finger.Methods From April,2011 to March,2015,46 patients were randomly divided into two groups.Twenty-eight cases were performed by dorsal metacarpal artery flaps with cutaneous branches as pedicle and the 18 cases were performed by reverse the proper palmar digital artery dorsal branches island flap.The complication,survival rate,hand function and appearance were analyzed.Results The dorsal metacarpal artery flaps with cutaneous branches as pedicle and reverse the proper palmar digital artery dorsal branches island flap were an average follow-up of 18 and 15 months,all flaps survived.For fingertip defects,8 cases were repaired with as pedicle as the dorsal metacarpal artery flaps with cutaneous branches as pedicle while 16 cases were repaired with reverse the proper palmar digital artery dorsal branches island flap.Among them,complication included 2 cases of early venous congestion and 2 cases of superficial skin necrosis.One case of reverse the digital artery dorsal branches island flap blistered;the flap sensibility was good recovery.The two-point discrimination testing of dorsal metacarpal artery flaps with cutaneous branches as pedicle was from 6.0 to 9.0 mm (average of 7.1 ± 0.5 mm);the two-point discrimination testing of dorsal metacarpal artery flaps with cutaneous branches as pedicle was from 4.0 to 7.0 mm (average of 5.2 ± 0.4 mm),but there were differences in two-point discrimination and there was statistically significant (P < 0.05).There was no significant difference between the two groups each finger interphalangeal joint activity compared with the healthy side.The study found that 10 cases of dorsal metacarpal artery flaps appearance was 5 mm higher than normal skin and 1 patient of reverse the digital artery dorsal branches island flap appearance was 5 mm higher than normal skin,the difference was statistically significant (P < 0.05),the latter was better than the former,especially repaired fingertip defect.Conclusion Dorsal metacarpal artery flaps with cutaneous branches as pedicle and reverse the proper palmar digital artery dorsal branches island flap were safe and reliable,it is the ideal flap finger defects.For finger fingertip defect repaired reverse the proper palmar digital artery dorsal branches island flap is superior dorsal metacarpal artery flaps with cutaneous branches as pedicle.