1.Study on TLC Identification and Content Determination of Compound Yantongxiao Spray
Traditional Chinese Drug Research & Clinical Pharmacology 1993;0(01):-
Objective To establish the methods for TLC identification and contents determination of Compound Yantongxiao Spray.Methods Flos Lonicera,Borneolum Syntheticum and Menthol in the spray were identified by TLC,and the content of chlorogenic acid was determined by HPLC.Results The TLC characteristic spots of Flos Lonicera,Borneolum Syntheticum and Menthol can be identified.For content determination,the linear range of chlorogenic acid was in 0.08~0.28 ?g(r=0.999 0),the average recovery of chlorogenic acid was 102.34 %(n=6)and RSD was 2.03 %.Conclusions The methods are simple,accurate,specific and reproducible,can be used for the quality control of Compound Yantongxiao Spray.
2.Study on the Skin Irritation of Hongzhi Gutong Cataplasm in Rabbits
Weiwen PENG ; Zhuqiang WANG ; Fei WU
China Pharmacy 2017;28(7):893-895
OBJECTIVE:To study the safety of percutaneous administration of Hongzhi gutong cataplasm. METHODS:Rab-bits were taken for single dose in complete skin irritation test(n=4),single dose in damaged skin irritation test(n=4)and multi-ple doses in complete skin irritation test(n=4). The left and right sides of the skin respectively paste 3 cm×3 cm blank matrix and Hongzhi gutong cataplasm for 24 h(calculated by crude drug of 0.14 g). After removing tape 1,24,48,72 h,the erythema and edema in hair removal site of rabbits in the former 2 tests were observed;after 24 h of administration,the rabbits in the last group were administrated again after exposing the administration area for 1 h,repeated 3 times,the erythema and edema in hair removal site after removing tape the first,second time and 1,24,48,72 h in the third time were respectively observed. RESULTS:In the 3 experiments,the scores of erythema and edema of all rabbits were 0,and skin irritation was evaluated as no irritation. CONCLU-SIONS:Hongzhi gutong cataplasm has no skin irritation in rabbits.
3.Determination of Hydroxy Safflor Yellow A in Orthopaedics Lotion 1 by RP-HPLC
Weiwen PENG ; Yujiao GAO ; Quanxi MEI
China Pharmacy 2005;0(24):-
OBJECTIVE:To establish a RP-HPLC method for the determination of hydroxy safflor yellow A in Orthopae_dics lotion 1.METHODS:The separation was performed on Phenomenex Luna C18 with mobile phase composed of methanol-acetonitrile-water(26∶ 2∶ 72).The flow rate was 1.0ml/min;the detective wavelength was 403nm and the column temperature was 30℃.RESULTS:At a sample size of 0.1 044? g~ 1.2 528? g(r=0.9 998),hydroxy safflor yellow A was noted to be of good linear relation with peak area score.The average recovery was 98.08%(RSD=0.52%).CONCLUSION:The method is simple,accurate,specific,sensitive,reproducible,and suitable for the quality control of Orthopaedics lotion 1.
4.Bibliometric analysis on perforator flap research literatures based on PubMed
Jing MEI ; Peng WEI ; Weiwen ZHANG ; Maolin TANG
Chinese Journal of Microsurgery 2012;35(2):107-110
ObjectiveTo comprehend the progress of perforator flap research and speculate its developmental trends.MethodsPubMed search was conducted to retrieve the papers published before November,2011.Analyze the literatures about perforator flap on years,nationalities,languages,journals and frequencies of the key words by using Endnote 8.0. ResultsAll 1719 literatures about perforator flap have been collected by PubMed till Oct.31,2011.Lots of them,amount to 51.5 percent,were from USA,China,Japan and UK. ConclusionEnglish was the main publishing language.The articles,which were mainly published by the Plast Reconstr Surg and other 10 journals,add up to 78.7%.The research emphases of the perforator flap will be breast reconstruction, repair defect, deep inferior epigastric artery perforator flap, anterolateral thigh flap,thoracodorsal artery flap,perforator flap of gluteal artery,and posterior leg perforator flap.Angiography and 3D-reconstruction,immunohistochemistry,and neovascularization are the new trend in flap research.
5.Efficacy and Safety of Intravenous Thrombolytic Therapy with Alteplase in Aged Patients with Cerebral Stroke
Liangtong HUANG ; Weiwen QIU ; Genlong ZHONG ; Xiao PENG ; Jie RAO
China Pharmacist 2014;(4):625-627
Objective: To explore the safety and efficacy of intravenous thrombolysis therapy with tissue plasminogen activator ( tPA) in aged acute ischemic stroke patients. Methods:The patients treated with intravenous tPA were analyzed and divided into≥80-year group (n=16) and <80-year group (n=79), and 30 hospitalized patients with the age above 80 years without thrombolytic therapy were selected as the control group. The prognosis of the three groups was compared. Results:①The incidence of ICH in the two thrombolysis therapy groups was 13. 9% and 18. 7% in 24h, and that of SICH was 5. 1% and 6. 3% with no significant difference (P>0. 05). ② No significant difference was found in favorable prognosis between the two therapy groups 90 days after thrombolysis (P=0. 771), while very bad prognosis rate was higher in the≥80-year group than in the <80-year group (P<0. 05). ③The≥80 years group had an increased favorable outcome compared with the control group (P<0. 05), while the very bad prognosis rate in the two groups showed no significant difference (P>0. 05). Conclusion:It is safe and effective for old patients to receive IV-tPA throm-bolysis therapy.
6.Influence of Hypoglycemic Combined with Lipid-lowering Statin Therapy on Lipid Profile of Mixed Dyslipid-emia Patients with T2DM
Wenjie PAN ; Liangmiao CHEN ; Weiwen SUN ; Peng HUANG
China Pharmacy 2015;(32):4557-4559
OBJECTIVE:To investigate the influence of hypoglycemic combined with lipid-lowering statin therapy on lipid profile of mixed dyslipidemia patients with T2DM and TG in 2.3-4.5 mmol/L. METHODS:In total of 80 patients with T2DM and mixed dyslip-idemia of TG in 2.3-4.5 mmol/L in our hospital was determined according to the patient’s age,chronic complications of diabetes and life expectancy. Hypoglycemic(insulin joint oral hypoglycemic drugs,or oral antidiabetic drug alone)treatment was given according to corresponding target,meanwhile statin lipid-lowering therapy was also given. HbA1c,TG,TC,HDL-C and LDL-C were determined and BMI was calculated before treatment. Alipid was reviewed after two weeks,then the difference was compared. RESULTS:Com-pared with before treatment,TG,TC and LDL-C were decreased by 50.28%,42.91% and 44.37% after hypoglycemic combined with lipid-lowering statin therapy,with significant difference(P<0.01). Insulin was the better choice to reduce the level of TG,there was significant difference between insulin treatment and oral hypoglycemic drugs alone (P<0.05). CONCLUSIONS:For T2DM patients with mixed dyslipidemia of TG between 2.3-4.5 mmol/L,hypoglycemic combined with lipid-lowering statin therapy can not only signifi-cantly reduce the levels of TG,TC,LDL-C and TG to 2.3 mmol/L or less,and even normal. Compared with oral hypoglycemic drugs alone,the compliance rate of TG was higher in the combination of insulin and oral hypoglycemic drugs.
7.Results of surveillance of foodborne diseases in Karamay City
LIN Jie ; XU Man ; Baidinuer Keailimu ; ZHANG Weiwen ; LIU Jia ; PENG Cheng
Journal of Preventive Medicine 2024;36(2):159-161,172
Objective:
To analyze the epidemiological and etiological characteristics of foodborne diseases in Karamay City, Xinjiang Uygur Autonomous Region from 2018 to 2022, so as to provide insights into formulation of foodborne disease control measures.
Methods:
Active surveillance data of foodborne disease cases in Karamay City from 2018 to 2022 were collected from Foodborne Disease Monitoring and Reporting System. Population distribution, temporal distribution, spatial distribution, etiological characteristics and history of suspicious food exposure of foodborne diseases were descriptively analyzed.
Results:
A total of 715 cases with foodborne diseases were reported in Karamay City from 2018 to 2022, and 672 samples were detected, with a sampling rate of 93.99% and a positive rate of 4.17%. Positive rates of detected pathogens showed an increasing trend from 2018 to 2022 (P<0.05). There were 352 men (49.23%) and 363 women (50.77%), 272 cases (38.04%) were at ages of 20 to 39 years, and 225 cases (31.47%) were workers. The detection of foodborne diseases was concentrated during the period between November and December (312 cases, 43.64%), followed by the period between July and August (209 cases, 29.23%). The main clinical symptoms were digestive system symptoms (700 cases, 97.90%). Norovirus were detected (28 cases), while Salmonella, Shigella, Vibrio parahaemolyticus and diarrheagenic Escherichia coli were not detected. The suspicious food exposure was predominantly meat and meat products (211 cases, 29.51%), and the suspicious food exposure place was predominantly at food service establishments (350 cases, 48.95%).
Conclusions
Foodborne diseases were highly prevalent during the period between November and December and between July and August in Karamay City from 2018 to 2022. Residents at ages of 20 to 39 years and workers are high-risk populations. Meat and meat products are the main suspicious food products and dining places are the main exposed places.
8.Surgical exploration versus conservative treatment for refractory arterial crisis during the hypersensitive period after digital replantation
Peng WEI ; Hong CHEN ; Xin WANG ; Weiwen ZHANG ; Xiaofeng WANG ; Jianbo XUE ; Liming ZHOU ; Jian HUANG ;
Chinese Journal of Orthopaedic Trauma 2004;0(06):-
Objective To evaluate the significance of surgical exploration for the refractory arterial crisis daring the hypersensitive period (48 h to 96 h) after replantation of severed fingers.Methods One hundred and seventy-one patients experienced refractory arterial crisis during the hypersensitive period after replantation of the proximal thumb from February 1995 to February,2005 in our department.Eighty-seven of them were managed with surgical exploration,including incision injury (n=6),saw injury (n=17),rotation and avulsion injury (n=30), and crush injury (n=34).Eighty-four cases received conservative treatment,including incision injury (n=6),saw injury (n=16).rotation and avulsion injury (n=29),and crush injury (n=33).In the surgery group,the e- mergent explorations were performed as soon as the refractory arterial crisis arose,If arterial spasm or/and thrombosis were found,the involved parts were resected before the artery ends were anastomosed or the finger artery was repaired by cubital vein graft.In the other group,conservative managements were carried out by using intramuscular injection of 30 mg Papaverine and intravenous injection of 20,000-unit Urokinase in 20 mL normal saline.If symptums were not alleviated after half an hour,the procedures were repeated.The conservative managements also included abirritative antipsychotics and analgesia of anodyne.Meanwhile,the survival state of all the digital replants was observed. Results In the surgery group,78 fingers survived,the surviving rate being 89.7%.In the conservative group,41 fingers survived with a surviving rate of 48.8%.The difference was statistically significant (P<0.01).No obvious complications happened in the two groups.Conclusion Since surgical exploration is crucial to management of refractory arterial crisis during the hypersensitive period after replantation of severed fingers,it should not be readily abandoned.
9.Pharmacological Effect of EPF on Biomechanical Properties among Ovariectomized Rats
Peng CHEN ; Wenhe LIU ; Linlin YAN ; Jiayu CHEN ; Weiwen HU ; Xiwen CAO ; Yang LI
World Science and Technology-Modernization of Traditional Chinese Medicine 2014;(8):1814-1818
This study was aimed to explore pharmacological effects of epimedium pubescen flavonoid (EPF) on biomechanical properties among ovariectomized rats. Sixty female Sprague-Dawley (SD) rats (aged 2-month-old) were randomly divided into six groups (n = 10), which were the sham control group (Group A), the model group (GroupB), the standard group (Group C), the treated 1 group (Group D), the treated 2 group (Group E), and the treated 3 group (Group F). Except the sham control group (Group A), rats in other groups had been ovariectomized. All rats were given the same feedstuff. Meanwhile, Group C was given calcium 75 mg·kg-1 combined with VitD3 21 IU·kg-1 by gastrogavage every day for 4 months; Group D was given EPF 75 mg·kg-1; Group E was given EPF 150 mg·kg-1;Group F was given EPF 300 mg·kg-1. At the end of the 4th month, all rats were sacrificed. Bones, which included tibia, femur and humerus of both sides and all lumbar vertebra bodies, had been taken out. Measurement was made on the elastic modulus, maximum loading capability, maximum stress, potential energy of deformation, and structural rigidity of biomechanical properties of the fourth lumbar vertebra body (LV4); the maximum loading capability, bone break load, potential energy of deformation, structural rigidity of the structural dynamics properties of the femur com-pact bone; the elastic modulus, maximum stress, maximum inherent strain, bone break stress, and bone break strain of the mechanical properties of a material of the femur compact bone in the experimental rats. The results showed that compared with Group B, the elastic modulus, maximum loading capability, maximum stress, potential energy of deformation, and structural rigidity of LV4; the maximum loading capability, bone break load, potential energy of de-formation, structural rigidity of the structural dynamics properties of the femur compact bone; the elastic modulus, maximum stress, maximum inherent strain, and bone break strain of the mechanical properties of a material of the fe-mur compact bone were obviously increased in Group A, D, E and F (P< 0.05). Group C had increasing tendency. There were no statistical differences among Group A, C, D, E and F. Group D, E, and F had increased with EPF dose-dependently. However, there were no statistical differences among them. There were no statistical differences on bone break strain of the mechanical properties of a material of the femur compact bone among Group A, C, D, E, and F. It showed that ovariectomization reduced the biomechanical properties of vertebra bodies, structural dynamics properties of the femur compact bone, and the mechanical properties of a material of the femur compact bone. The application of EPF can effectively prevent and treat the decreasing of biomechanical properties of ovariectomized rats, so as to keep them in a relatively higher level.
10.Effect of Codonopsis and Glycyrrhiza glycoconjugates on migration and membrane potential of IEC-6 cells
Ruliu LI ; Yuzhu TAO ; Peng WEN ; Xiaohua TU ; Jiazhong CAI ; Weiwen CHEN
Chinese Journal of Pharmacology and Toxicology 2015;(6):917-923
OBJECTIVE To observe the effect of Codonopsis and Glycyrrhiza glycoconjugates on migration and membrane potential of small intestinal epithelial cells(IEC-6),and to explore the promoting effects of Yiqi jianpi herb Codonopsis and Glycyrrhiza on gastrointestinal mucosal injury repair and the underlying mechanisms. METHODS Under normal conditions or loaded with the inhibitor of potassium channel 4-aminopyridine(4-AP),IEC-6 cells were treated with Codonopsis and Glycyrrhiza glycoconjugates (25-200 mg · L-1) for 24 h,respectively. IEC-6 cell migration was observed by the phase contrast microscope and cell membrane potential was detected by flow cytometry. RESULTS Codonopsis and Glycyrrhiza glycoconjugates (50 and 100 mg · L-1) increased the number of migrated IEC-6 cell compared with normal control group(P<0.01,P<0.05). Compared with normal control group,4-AP reduced the number of migrated IEC-6 cell(P<0.01). Codonopsis and Glycyrrhiza glycoconjugates (50-200 mg · L-1)reversed cell migration inhibited by 4-AP significantly when compared with 4-AP model group(P<0.01). The results of flow cyometry analysis showed that the cell membrane poten?tial was increased after treatment with Codonopsis and Glycyrrhiza glycoconjugates(50 mg · L-1)compared with normal control group and resulted in an increase in cell membrane hyperpolarization(P<0.01). Compared with normal control group,4-AP decreased the cell membrane potential(P<0.01)and resulted in cell membrane depolarization. Also,compared with 4-AP model group,cell membrane depolarization induced by 4-AP was reversed by treatment with Codonopsis and Glycyrrhiza glycoconjugates(100 and 200 mg·L-1). CONCLUSION Codonopsis and Glycyrrhiza glycoconjugates may promote gastrointestinal mucosal injury repair and the mechanisms may involve the activation of signaling pathways by affecting polyamine-dependent intestinal epithelial cell migration voltage-gated K+channels.