1.Determination of Amphotericin B in Human Plasma by RP-HPLC
China Pharmacy 2001;0(11):-
OBJECTIVE:To determine the blood concentration of amphotercin B by RP-HPLC method.METHODS:The determination was performed with C 18 as the chromatographic column.0.005mol/L EDTA-2Na-methanol(3∶7)was taken as the mobile phase with the flow rate at1.0ml/min and the detection wavelength set at380nm.RESULTS:The linear con?centration range for amphotercin B was0.125~4.0?g/ml(r=0.9998).The average recovery rate for the3(high,middle and low)concentrations of amphotericin B was93.5%.Both the intra-day RSD and the inter-day RSD were less than3.6%.CONCLUSION:The method is simple,fast,specific and reproducible,which can be used for the clinical monitoring of the blood concentration of amphotericin B.
2.Protection of melatonin to gastric mucosa and its possible mechanism
Huahong WANG ; Baowen CHEN ; Chihin CHO
Chinese Journal of Digestion 2001;0(08):-
Objective Effects of melatonin and serotonin on ethanol induced ulceration in the rat stomach were investigated. Methods Serotonin was injected subcutaneously, then melatonin solution and finally ethanol was put into the ex vivo gastric lumen to prepare the experimental models. Glandular mucosal blood flow (GMBF) and the gastric mucosal injury were observed. Results Melatonin and serotonin administration did not induce observable gastric mucosal of damage in the ex vivo stomach, but the serotonin reduced glandular mucosal blood flow (GMBF) with dose dependence in this organ. Ethanol reduced GMBF and induced visible glandular mucosal damage. The latter effect was prevented by melatonin pretreatment. Serotonin pretreatment aggravated the gastric mucosal injury and GMBF changes induced by ethanol, but these effects were partially reversed by melatonin. Conclusion The findings indicate that the GMBF and gastric injury are related, the reduction in GMBF, however, may not be the sole factor responsible for ulceration. The antagonistic effects of melatonin on serotonin action on the stomach suggest that melatonin may play a modulator role for serotonin action on the gastrointestinal tract.
3.Observation of the effects of 5-aminolevulinic acid photodynamic therapy combined with fulguration in treating perianal condyloma
Huahong WU ; Songbo CHEN ; Jinnan CAI
Chinese Journal of Primary Medicine and Pharmacy 2014;21(11):1612-1614
Objective To evaluate the relapse rate and the effect of 5-aminolevulinic acid photodynamic therapy(ALA-PDT) combined with fulguration in the treatment of perianal genital warts.Methods 67 patients with perianal genital warts were randomly divided into the three groups.22 cases in the fulguration and ALA-PDT treatment group performed the ALA-PDT treatment immediately after removal of dominant wart by fulguration,once a week,treatment for 3-4 times.22 cases in the ALA-PDT treatment group only underwent ALA-PDT treatment,once a week,treatment for one month.23 cases in the fulguration group were given the traditional fulguration methods one by one electrocautery fulguration gasification treatment for all skin lesions,a weekly batch treatment,treatment for a month.Follow-up six months after the last treatment to determine efficacy and recurrence rate.Results The cure rate of combined treatment group was 90.9% (20/22),and recurrence rate was 9.1% (2/22) ;cure rate of photodynamic group was 54.5% (12/22),and its recurrence rate was 22.7% (5/22) ; cure rate of fulguration group was 39.1% (9/23),and the recurrence rate was 43.5% (10/23).There were statistically significant differences in the cure rate and relapse rate between combination therapy group and electrocautery treatment group (P =0.000,P =0.017).Conclusion The fulguration combined with ALA-PDT in the treatment of perianal genital warts has high cure rate,low recurrence rate,and less side effects.
4.Long-term morphologic changes in skeletal muscles of SD rats after botulinum toxin A gel injection
Huahong ZHONG ; Jingchang CHEN ; Heping WU ; Guanghuan MAI
Journal of Third Military Medical University 2003;0(10):-
0.05).Histopathologic examination showed no changes in the right gastrocnemius muscles injected with BTXA gel,but ultrastructurally the myopathic changes were clearly visible,like diffuse sarcomere disruption and saroplasmic reticulum expanding.The myofibre degeneration showed no remission 12 months after BTXA gel injection.Conclusion BTXA is dissolved in gel evenly.The long-lasting myofibre degeneration in BTXA gel paralyzed muscles may reflect that the paralyzed muscles fail to regain their unique function and recovery of muscle contraction.
5.Study on Extraction Process of Xiaoer Yinqiao Granules
Jingfeng LIU ; Huahong CHEN ; Aiqiang YIN ; Xiaochuan YANG ; Han BAO
China Pharmacist 2016;19(9):1760-1762
Objective:To establish the optimal extraction technology of Xiaoer Yinqiao granules by orthogonal test. Methods:The effects of water amount,extraction duration and extraction times were investigated by orthogonal design using the contents of forsythia-side A and chlorogenic acid as the indices. Results: The optimum extraction process was as follows: adding 8-fold amount of water, and extracting 1. 5 h for the first time, and then adding 6-fold amount of water, extracting 1 h for the second and third time, respective-ly. Conclusion:The extraction technology is simple, reasonable and reliable.
6.Application of Topic Model in the Study of Type 2 Diabetes Treatment Plan
Fan YANG ; Haiying LI ; Shaojie XU ; Zhaozhong ZOU ; Yiqin LI ; Huahong CHEN
China Pharmacy 2017;28(23):3208-3212
OBJECTIVE:To explore the application of topic model in the study of type 2 diabetes treatment plan. METHODS:Clinical data of 650 inpatients with type 2 diabetes in our hospital during Jan. 2012-Jun. 2016 were analyzed retrospectively. The data of clinical diagnosis,lab indexes and clinical drug use were exchanged,summarized and merged by MATLAB R2014a software. Latent Dirichlet allocation and author topic model were adopted to extract the typical topics with topic probability value>0.1,and the topics was described by the complications with cumulative probability value>0.5. RESULTS:A total of 62 complications words,16 abnormal laboratory indexes groups and 20 treatment plans were obtained. A total of 4 typical topics were excavated(cumulative probability values for the first few complications were 0.8786,0.8247,0.8215,0.7536;topic probability value were 0.3364,0.2773,0.2035,0.1176,respectively) and were mainly characterized by peripheral neuropathy,peripheral vascular disease,abnormal lipid metabolism and microvascular lesions;abnormal lab indexes groups met the above characteristics. The complications with high distribution rate included diabetic peripheral neuropathy (0.5787), hypertension (0.3631),atherosclerosis (0.2789),hyperlipidemia (0.4578) and diabetic retinopathy (0.3143);main drugs included Insulin aspart injection,Insulin injection,Methylcobalamin dispersible tablets,etc. CONCLUSIONS:The complications of type 2 diabetes are characterized by peripheral neuropathy,peripheral vascular disease,abnormal lipid metabolism and microvascular lesions. The medication rules with clinical significance can be extracted from the clinical data by topic model.
7.Optimization and Preliminary Methodology Study of in vitro Fresh Human Whole Blood Detection Method for Pyrogen-related Factor IL-1β
Wenjia WANG ; Zhiming CHEN ; Zhihui PANG ; Haishun FANG ; Huahong HE ; Wei LI
China Pharmacy 2016;27(19):2644-2646,2647
OBJECTIVE:To establish the detection method for pyrogen-related factor interleukin 1β(IL-1β)through optimiz-ing detection condition,and to conduct preliminary methodology study. METHODS:The in vitro fresh human whole blood detec-tion method was used. The bacterial endotoxin standard solution(5,2,0.8,0.32 EU/ml)were added into diluted blood;using di-luted RPMI 1640 as blank control,the content of IL-1β in blood sample was determined by ELISA after incubation. The relation-ship of the addition of different attenuants(RPMI 1640 culture,sterilized normal saline)and fetal bovine serum,final dilution vol-ume fraction(40%,20%,10%and 8.3%)and storage duration(2,5,6,8,26 h)with the contents of endotoxin IL-1βwere in-vestigated,and related coefficient and detection limits were calculated. Different dilution times of Qingkailing injection and Ginaton injection samples and interference solutions were added into diluted blood to detect their recovery. RESULTS:The results indicated that RPMI 1640 media and 40% diluted blood was more sensitive(detection limit was 0.128 EU/ml,r=0.993);while the addition of fetal bovine serum didn’t influence the results. The detection limits of blood sample storied at 4 ℃ for 26 h were 0.128 EU/ml (r>0.990). When Qingkailing injection and Ginaton injection were diluted 10,32 and more times,the detection method was not interfered and the recovery ranged 68%-118%. CONCLUSIONS:Established in vitro fresh human whole blood detection method can be used for the detection of pyrogen,and provides trial evidence for the pyrogen detection of TCM injection.
8.Determination of Bacterial Endotoxin in Fat Emulsion(10%)/Amino Acid (15)/Glucose (20%) Injection by Gel Method
Wenjia WANG ; Zhiming CHEN ; Namin ZHANG ; Mengying ZHOU ; Huahong HE ; Wei LI
China Pharmacy 2017;28(18):2576-2578
OBJECTIVE:To adopt gel method for the determination of bacterial endotoxin in Fat emulsion(10%)/amino acid (15)/glucose (20%) injection. METHODS:According to the gel method in term ofbacterial endotoxin test methodin Chinese Pharmacopeia(2015 edition),the maximal valid dilution(MVD)of samples were determined through interference test and the vali-dated. The results were compared with chromogenic method. RESULTS:In gel method,the interference to agglutination reaction of TAL and bacterial endotoxin can be excluded when samples were diluted 24 times or less. In chromogenic method,the samples should be diluted 76 times or less. CONCLUSIONS:Gel method can be used for bacterial endotoxin test of Fat emulsion(10%)/amino acid(15)/glucose(20%)injection.
9.Photosynthetic characteristics of Sarcandra glabra.
Longjun CHENG ; Zhigao LIU ; Jinping SI ; Chen ZHENG ; Huahong HUANG ; Shaoqing LOU
China Journal of Chinese Materia Medica 2009;34(13):1643-1647
OBJECTIVETo learn about the photosynthetic characteristics of Sarcandra glabra and provide the theoretic references for its better planting.
METHODThe photosynthetic parameters of twenty different provenances of Sarcandra glabra were determined by Li-6400 portable photosynthesis system, and the data was analyzed by Excel and SAS software.
RESULTThe results showed that the light saturation point of different Provenances of S. glabra were almost about 800 micromol x m(-2) x s(-1), while the light compensation point of them were from 14.70 micromol x m(-2) x s(-1) to 48.68 micromol x m(-2) x s(-1). The curve of net photosynthetic rate had two peaks on sunny day, the first one was in the morning and the other one was in the afternoon. The photosynthetic "noon- break" of S. glabra appeared between 11:00-13:00, when the net photosynthetic rate goes down sharply. Intercellular CO2 concentration (C(i)), CO2 concentration (CO2S) and transpiration rate (T(r)) all have effect on the diurnal change of net photosynthetic rate (P(n)) of S. glabra, and the average correlation coefficient between P(n) and the parameters above were orderly as -0.89 (P < 0.01), -0.75 (P < 0.05) and 0.69 (P < 0.05);
CONCLUSIONS. glabra was a plant with characteristics of shade-tolerance, and through the way of covering, sprinkling for decreasing the surrounding temperature would be effective to reduce its "noon-break" time and increas its efficiency of photosynthesis.
Magnoliopsida ; classification ; physiology ; radiation effects ; Photosynthesis ; radiation effects ; Phylogeny ; Sunlight
10.Optimization of Extraction Technology of Shenqi Fukang Granules by Orthogonal Test
Zhen SUN ; Ying ZHANG ; Jie WANG ; Mingcong CHEN ; Zuguang HUANG ; Huahong GAO
China Pharmacy 2018;29(10):1332-1334
OBJECTIVE:To optimize extraction technology of Shenqi fukang granules. METHODS:Single factor method was used to investigate water multiple at first time using water absorption as index,soaking time using yield of dry extract as index. Based on single factor test,by weighted comprehensive scoring method,using the yield of dry extract and the content of 75% ethanol extraction as indexes,extraction time,water multiple and extraction times as factors,L9(34) orthogonal test was used to optimize water extraction technology of Shenqi fukang granules. Validation test was conducted. RESULTS:The optimal water extraction technology included 8-fold water (L/kg), extracting for 3 times, 1 h each time. CONCLUSIONS:The optimized extraction technology is stable and controllable in quality,and can provide reference for industrial production of Shenqi fukang granules.