1.SFE-CO_2 constituents of simplified formula of Danggui Shaoyao Powder in the prevention and treatment of vascular dementia
Lan LUO ; Danni ZHU ; Yongqing YAN
Chinese Traditional Patent Medicine 1992;0(11):-
AIM: To isolate,identify and screen active compounds of simplitied formula of Danggui Shaoyao Power(poria,Rhizoma Atracty-lodis Macrocephalae,and Radix Angeliae Sinensis). METHODS: Compounds in the fraction of CO_2 supercritical fluid extraction(SFE-CO_2) were isolated by silica gel chromatography and detected the protective effect on KCl-induced PC12 cell damage. RESULTS: Twelve compounds were obtained,and nine of them were identified as atractylenolide Ⅰ,Ⅱ,Ⅲ,biatractylenolide,levistolid A,pachymic acid,ferulic acid,?-sitosterol and ?-daucosterol,of which only atractylenolide Ⅲ can improve the cell viability significantly. CONCLUSION: Atractylenolide Ⅲ may be one of the active compounds of FBD in curing vascular dementia.
2.Progress in molecular diagnostic techniques for leukemia
Zhanguo CHEN ; Yan LI ; Yongqing TONG
Chinese Journal of Laboratory Medicine 2015;(3):206-210
With the development of molecular diagnostic techniques, the study for the etiology of leukemia has been entering the era of the molecular biology.Molecular techniques for leukemia diagnosis, prognosis and individualized therapy are used widely, becoming one of the necessary routine tests for patients with leukemia. So far, molecular techniques for leukemiaincluding cytogenetic diagnosis, molecular genetics, molecular diagnostics based on PCR, mutation detection, as well as a variety of next-generation sequencing, have played an important role in the diagnosis of leukemia, minimal residual disease monitoring, prognosis and targeted therapy.
3.THE PROTECTIVE ACTION OF HYDROLYSATE OF ARCA SUB-CRENATA ON LIVER INJURIES IN MICE
Changgui DOU ; Yongqing YAN ; Zheng ZHANG ;
Chinese Journal of Marine Drugs 1994;0(03):-
Hydrolysate of Area subcrenata (HA) was found to be effective in lowering the elevated SGPT level induced by carbon tetrachloride, thioacetamide (TAA) and pred-nisolone. In addition, HA was shown to shorten sodium pentobarbital sleeping time in both normal and carbon tetrachloride intoxicated mice. The results indicated that HA possessesa significantl protective action on liver injuries in mice.
4.Preliminary Studies on Factors Affecting Content of Magnolol in Magnolia Bark Three Agents Decoction
Junping KOU ; Yuanyuan XUAN ; Yongqing YAN ;
Chinese Traditional Patent Medicine 1992;0(06):-
Objective: To study the factors affecting the content of magnolol which is one of the main active components in Magnolia Bark Three Agents Decoction. Methods: The contents of magnolol in extracts of Magnalia Bark Three Agents Decoction (medicinal materids were decocted alone, together or in different compatibleness, and residuals) were determined by HPLC. The effects of use amount of Radix et Rhizoma Rhei and Fructus Aurantii Immaturus, decoction time, and extraction times on magnolol content were studied by orthogonal design.Results: The content of magnolol in Magnolia Bark Three Agents Decoction of which medicinal materials were decocted together was over double that of which they were decocted alone. The dissolution sate of magnolol increased with the increasing of the use amount of Fructus Aurantii Immaturus and extraction times. Conclusion: Fructus Aurantii Immaturuns and extraction times are the main factors affecting magnolol content in Magnolia Bark Three Agents Decoction.
5.Detecting rs12979860 polymorphisms of IL28B gene by AS-PCR in the patients with hepatitis C
Yongqing TONG ; Yan LI ; Anyu BAO ; Hongyun ZHENG ; Jian GU
Chinese Journal of Laboratory Medicine 2013;(1):59-62
Objective To evaluate the value of detection of interleukin 28B (IL28B) rs12979860 by allele-specific PCR (AS-PCR) for the prediction of antiviral treatment hepatitis C patients.Methods One hundred seventy-four blood samples were random collected from hospitalized patients with hepatitis C,who came from department of infectious diseases,Renmin Hospital of Wuhan University from May 2011 to May 2012.Two pairs of specific primers were designed for rs12979860 gene polymorphisms,and one mutated base was introduced to the second or third site of the end of 3' with the reverse primer.rs12979860 gene polymorphism of 30 cases with hepatitis C was detected by AS-PCR,and gene sequencing was further used to verify the consistency of the two methods in parallel.Then,the frequency distribution of different rs12979860 genotypes with 174 cases were analyzed by the AS-PCR method in the population.Results The genotype CC,CT or TT of rs12979860 with 30 cases could be well identified by both AS-PCR and gene sequencing,and the coincidence rate was 100% (x2 =60.0,P < 0.01).Compared to gene sequencing,both of the sensitivity and specificity of AS-PCR were 100%.Compared to the control (CC genotype),TT genotype detection sensitivity by AS-PCR was 10-5,while sequencing sensitivity was 2 × 10-1.rs12979860 polymorphism in the TT,CC and CT genotype distribution in the Chinese population frequencies were 3.45% (6/174),13.2% (23/174) and 83.3% (145/174),respectively.Conclusion AS-PCR can quickly,accurate,reliable,economic and efficiently detect IL28B rs12979860 gene polymorphism of hepatitis C in patients,which could predict the effect of antiviral therapy on patients with hepatitis C.
6.Pyrosequencing for detection of drug resistant relevant mutation in the polymerase gene of Hepatitis B virus and its clinical application
Zhanguo CHEN ; Yan LI ; Yongqing TONG ; Wu ZHOU
Chinese Journal of Laboratory Medicine 2013;36(12):1091-1095
Objective To explore the accuracy and clinical application of Pyrosequencing for detection of drug resistant relevant mutation in the polymerase gene of Hepatitis B virus (HBV).Methods Compared with Sanger sequencing,the accuracy and sensitivity of Pyrosequencing were assessed.Pyrosequencing was used to determine the serum of 1164 patients with chronic Hepatitis B and its results were analyzed.Results The sensitivity of Pyrosequencing was 1 × 103 KIU/L,the same as Sanger sequencing.But Pyrosequencing was more stable and specific than Sanger sequencing to detect low rate of mutation with over 10% mutation.The mutations couldn't be detected in 248 patients with chronic Hepatitis B,but positive results occurred in 919 patients,among them,61.5 % without mutation,38.5 % with mutation (including 47.5% of the single locus mutation and 52.5% of the combined mutation).Other sites had different degree of mutations except the sites of rtI169T and rtA194T; the main mutation sites in patients with chronic Hepatitis B were rtM204V/I (32.1%),rtL180M (19.8%),rtA181V/T (6.7%) and rtN236T (5.3%),in which fractional mutation had high ratio in the sites of rtA181V/T (6.7%) and rtN236T (5.3%).Conclusions Pyrosequencing has good sensitivity,specificity and accuracy and can early detect the drug resistant relevant mutation in the polymerase gene of HBV,which is suitable for monitoring patients with chronic Hepatitis B for the treatment of nucleoside analogues (acid).The different sites and frequencies of mutations may be associated with different habits of doctors for using different anti-HBV drugs.
7.Research and investigation in relationship between oral health habit and halitosis
Fenghua YAN ; Jian LIU ; Yongqing HU ; Lu HE
Chinese Journal of Practical Nursing 2011;27(7):1-3
Objective The aim of this study was to assess the relationship between the oral health habit and halitosis. It can provide an advisory basis for nurse giving individualized oral health instruction to patients of halitosis and can improve the result of prevention and treatment for halitosis accordingly. Methods 202 patients with periodontal disease were chosen to participate in this study. The study included the questionnaire of oral health habit and the halitosis diagnosis by organoleptic assessment.Comparisons of difference in the knowledge of oral health habit between the subjects with and without halitosis were conducted. Results Brushing times in subjects without halitosis were significantly more than that in subjects with halitosis. Brushing teeth in evening and interproximal brush usage were much better in subjects without halitosis than that in subjects with halitosis,respectively. Conclusions Good oral health habits could decrease the incidence of halitosis.
8.Application of gene sequencing in detection of BRCA1/2 gene mutations in breast cancer patients and risk assessment
Zegang WU ; Yan LI ; Yongqing TONG ; Hongyun ZHENG
Chinese Journal of Laboratory Medicine 2012;(11):1006-1009
Objective To explore the mutation spectrum of breast and ovarian cancer susceptibility gene 1/2 (BRCA1/2) which was related to breast cancer in female residents of Wuhan,and assess the relation of gene mutation and risk of suffering breast cancer.Methods 128 cases of female individuals,including 58 cases of breast cancer after surgery,70 cases of benign breast disease,and 50 femal hcalthy volunteers were selected by simple randon sampling from Department of Breast Surgery of Renmin Hospital of Wuhan University.BRCA1/2 gene was sequenced and compared with the standard template sequence to explore the possible mutations.Results In the breast cancer group,mutation emerged in 11 cases and the mutation rate was 19.0% (11/58),including 8 cases of the BRCA1 gene mutations (3 cases of 185 del AG,5 case of 5382 ins C) and 3 cases of the BRCA2 gene mutations (2 cases of 6174 del T,1 case of C5773T) ; in the benign breast disease group,mutation emerged in 5 cases,the mutation rate was 7.1%(5/70),including 4 cases of the BRCA1 gene mutations (1 case of 185 del AG,3 cases of 5382 ins C),and 1 case of the BRCA2 gene mutation (6174 del T).There was no mutation detected in healthy control group.The mutation rate of the breast cancer group was significantly higher than that of benign breast disease group and healthy control group (x2 =4.05,10.56,P < 0.05); However,there was no significant difference between benign breast disease group and healthy control group (x2 =3.73,P >0.05).Conclusions The mutation of BRCA1 gene (185 del AG,5382 ins C) and BRCA2 gene (6174 del T,C5773T) is in the presence of female residents in Wuhan.Furthermore,the mutation in BRCA1/2 gene increases the risk of breast cancer.
9.Investigation of the Development of Clinical Pharmacy in 28 Hospitals of Jiangsu Province
Yingying ZHOU ; Yan YANG ; Ling MENG ; Yongqing WANG
China Pharmacy 2017;28(24):3341-3346
OBJECTIVE:To know the status quo of clinical pharmacy in main hospitals of Jiangsu province primarily,and to provide reference for promoting the construction of clinical pharmacist system and playing active role of clinical pharmacists on rational drug use and pharmaceustical care.METHODS:A mailed questionnaire investigation was conducted among 28 committee members (coming from 28 hospitals) of the Clinical Pharmacy Branch of the Medical Association in Jiangsu Province regarding the status quo of the clinical pharmacy practice,and the correlated data and results were summarized to statistical analysis.RESULTS:A total of 28 questionnaires were distributed and 28 valid questionnaires were collected,with recovery rate of 100%.Among 28 hospitals,there were 25 general hospitals and 26 third grade class A hospitals.There were 312 full-time and part-time clinical pharmacists;there were 7.32 full-time clinical pharmacists and 3.82 part-time clinical pharmacists in each visited hospital;the proportion of full-time clinical pharmacists with master's degree and intermediate title was significantly higher than that of part-time clinical pharmacists (P<0.05).There were 144 full-time clinical pharmacists who had been trained to obtain clinical pharmacists qualifications (70.24%).In 13 hospitals with the qualification of clinical pharmacist training base of National Health and Family Planning Commission (NHFPC),the average number of teachers was 3.77;in 5 hospitals with the qualification of provincial clinical pharmacist training base,the average number of teachers was 5.80;in a hospital with the qualification of clinical pharmacist training base of NHFPC,the number of teachers was 5.The surveyed hospital had the highest proportion of clinical pharmacy related work to participate in daily physician rounds,doctor's advice and prescription review,special review of antibiotics,drug record writing,pharmaceutical information service,outpatient drug consultation and ADR monitoring,all being 100%.Expert consultation clinic occupied the lowest proportion of clinical pharmacy work (10.71%).Setting up pharmacy for operation and anaesthesia department (28.57%),community pharmaceutical care (57.14%),pharmacogenomic testing (46.43%) and participating in the management of drug clinical trials (53.57%) occupied the lower proportion of clinical pharmacy related work.The proportion of clinical pharmacy work in training base hospital was higher than that non-training base hospital.Compared to surveyed hospitals,there was statistical significance in the proportion of special review for antineoplastic drugs,hormone drugs and blood products,expert consultation,setting up pharmacy for operation and anaesthesia department,community pharmaceutical care,pharmacogenomic testing and participating in the management of drug clinical trials in provincial clinical pharmacist training base (P<0.05).There was statistical significance in the number of specialist consultation,case analysis,inpatient injection medical orders,check pharmacy intravenous admixture medical orders and checked outpatient prescriptions,varieties and number of monitored therapeutic drugs as well as case number of pharmacogenomic testing (P<0.05).CONCLUSIONS:It is suggested to strengthen the construction of clinical pharmacist team in third grade class A hospital in Jiangsu province,accelerate the transition of part-time clinical pharmacists,at the same time,further improve the development of clinical pharmacy related work.
10.Compatibility Studies of Effective Fractions in Shengmaisan on Cerebral Ischemia and Anoxia in Mice
Jianhong ZHANG ; Junping KOU ; Danni ZHU ; Yongqing YAN ; Boyang YU
Traditional Chinese Drug Research & Clinical Pharmacology 1993;0(04):-
Objective To explore the proper proportion of effective fractions in Shengmaisan(saponins of Radix ginseng,saponins of Radix ophiopogonis,Lignans of Fructus schisandrae)in different anoxia models.Methods Acute cerebral hypoxia was induced by sodium nitrite and decapitation in mice,and the orthogonal design was used in these two models to find the proper proportion of three effective fractions.The gasping time of the mice,which were decapitated was observed to compare the anti-anoxia effects of XZF with other clinical drugs,and cerebral ischemic reperfusion injury model of mice was also used to study the effect of XZF on related biochemical index.Results XZF(the proportion of saponins of Radix ginseng,saponins of Radix ophiopogonis,Lignans of Fructus schisandrae as 7 ∶ 2 ∶ 6)significantly prolonged the gasping time,and decreased brain nitrogen monoxidum(NO)content after reperfusion of the mice at dosages of 50 mg/kg and 150mg/kg.Meanwhile,XZF also reduced malondialdehyde(MDA)content and increased superoxide dismutase(SOD)activity at the higher dosage.Conclusion XZF obtained by experimental screening exerts a significant protective effect on cerebral ischemia injury in mice,which provide some pharmacological evidence for further development of new modern Chinese drug composed with effective fractions for cerebral vascular diseases.