1.Isolation of a new natural compound from berry of Panax ginseng
Jiyan WANG ; Xianggao LI ; Xiuwei YANG
Chinese Traditional and Herbal Drugs 1994;0(12):-
Objective To study the constituents from the berry of Panax ginseng. Methods Compounds were separated and purified by column chromatographic methods. Their structures were elucidated by physicochemical properties and spectral analyses. Results Twelve compounds were isolated from water extracts of the berry of P. ginseng. They were identified as benzoic acid (Ⅰ), isoginsenoside-Rh3 (Ⅱ), ginsenoside-Rh2 (Ⅲ), ginsenoside-Rh1 (Ⅳ), ginsenoside-Rg1 (Ⅴ), ginsenoside-Re (Ⅵ), ginsenoside-Rd (Ⅶ), ginsenoside-Rc (Ⅷ), ginsenoside-Rb2 (Ⅸ), ginsenoside-Rb1 (Ⅹ), ?-sitosterol (Ⅺ), and 20-O-?-D-glucopyranosyl-20 (S)-protopanaxadiol named as compound K (ⅩⅡ). Conclusion The compound K is a new natural product.
2.Progress of phytochemicals, pharmacological effects and clinical applications onCotinus coggygriaScop
Junjie WANG ; Shanqing JIANG ; Gang WANG ; Jiyan CHEN ; Benhong ZHOU
International Journal of Traditional Chinese Medicine 2015;(3):283-285
Cotinus coggygria Scop. is theAnacardiaceae Cotinus L. plant and used for natural drugs in the treatment of acute icteric infectious hepatitis. The pharmacological research showed thatCotinus coggygria Scop. has the effects of reducing jaundice and enzyme, gallbladder Cholagogic and strengthen immune function. The current research onCotinus coggygria Scop. is still not deep enough, the pharmacological effects ofCotinus coggygria Scop. are mostly limited to the anticoagulant, hemolytic and anti liver chemical injury. In order to better study the scientific connotation of antitumor ofCotinus coggygria Scop., the active ingredient ofCotinus coggygria Scop., pharmacological action and clinical application were reviewed.
3.Recovery of cardiac function in patients with frequent premature ventricular contraction after radiofrequcency catheter ablation by noninvasive hemodynamic detection technique
Yonghao LI ; Zhuoqing WANG ; Jiyan GONG ; Meihui LI ; Junhua WANG
Military Medical Sciences 2017;41(5):402-405
Objective To explore the change in cardiac function in patients with idiopathic frequent premature ventricular contraction(PVC) after radiofrequency catheter ablation(RFCA) and drug control by ultrasound Doppler and noninvasive hemodynamic detection technique.Methods Forty-eight patients with idiopathic frequent PVC were selected as the test group with a total of(16 391.03±10 873.01)beats per day.Another 55 healthy subjects were selected as the control group.Heart ultrasound Doppler and noninvasive hemodynamic detection technique were used in the two groups.Twenty-five patients were selected from the PVC group to receive RFCA,while noninvasive hemodynamic detection technique was adopted 3 days after operation.Results by ultrasound Doppler and noninvasive hemodynamic detection technique were compared between the two groups before and after operation.Results There was no significant difference in left ventricular ejection fraction(LVEF),left ventricular end-diastolic dimension(LVEDD),left ventricular end-systolic dimension (LVESD),left atrial diameter(LA)and the ratios of the peak mitral flow velocity in early diastole (E) to the peak atrial kick velocity (A) between the two groups.HI,SI,CI and C in PVC group were significantly lower than those in control group(P<0.01),but WA,O,WA/C and O/C were significantly higher than those in control group(P<0.01).HI,SI,CI and C obviously increased 3 days after operation(P<0.01),but WA,O,WA/C and O/C significantly decreased (P<0.01).Conclusion The cardiac functio of idiopathic PVC patients in the early stage may have been damaged,and RECA can reverse or delay the damaged cardiac function due to frequent PVC.
4.Effects of Different Concentrations of Tween-80 on Dissolution of Ipriflavone Capsules
Haitao ZHU ; Liangyong HUANG ; Jiyan CHEN ; Zhenfen WANG
China Pharmacy 1991;0(03):-
OBJECTIVE:To study the effect of tween-80at different concentrations on the dissolution of ipriflavone capsules.METHODS:Different concentrations of tween-80ipriflavone capsules were prepared with contents and dissolutions of ipriflavone capsules determined by UV spectrophotometry,parameter values of T d ,T 50 and m were calculated and compared among each other.RESULTS:When tween-80were at a concentration range of1%~3%,the T 50 and T d diminished with the increase of concentration of tween-80,its optimal concentration was2.5%.CONCLUSION:The dissolution of ipriflavone capsules can be markedly increased if the preparation was added with optimal amount of tween-80(P
5.Analysis of clinical manifestations and prognosis of 68 cases of children with acute paraquat intoxication
Jiyan GU ; Mo WANG ; Qiu LI ; Xuemei TANG
Chongqing Medicine 2013;(35):4265-4267
Objective To study the clinical manifestations and influencing prognostic factors of children with acute paraquat in-toxication ,and to search for reasonable and effective treatments .Methods Retrospectively analyzed the clinical data of 68 children with acute paraquat intoxication from March 2005 to June 2012 .According to the amount of toxic dose and clinical symptoms ,all of them were divided into 3 groups ,mild type(22 cases) ,severe type(26 cases) and fulminant type(14 cases) ,retrospective analysis on clinical manifestation ,auxiliary examination and prognosis among the groups and following up the survival of these patients ,the risk factors which may affect the prognosis were explored .Results 66 cases were poisoned by taking orally and the other 2 cases were poisoned by the skin absorption .Gastrointestinal symptoms were the most common .Among 68 cases ,6 cases was lost the following up ,20 cases died(32 .26% mortality):all children from mild type survived ;8 patients from severe type and 12 patients from fulmi-nant type(30 .77% ,85 .71% ,mortality respectively ) .As the degree of the clinical classification deteriorated ,the mortality in-creased ,there was statistical signification between each other and so did the blood urea nitrogen and serum creatinine (P<0 .05) .By following up ,children who once passed the acute stage can recovery and the pulmonary fibrosis might be reversed by the chest CT follow-up .The logistic regression analysis indicated that children who had been diagnosed with acute kidney injury and multiple or-gan dysfunction syndrome showed the worse prognosis .Conclusion Acute kidney injury is a very important factor for the short term prognosis of paraquat intoxication ,while pulmonary fibrosis determine the long-term outcomes ,lung injury may be reversed in the course of the disease ,so we should take active treatments .
6.Alteration of AQP2 expression in kidney tissues of emphysema model rats
Zhe WANG ; Chunying LIU ; Yuan GAO ; Ying WANG ; Huan JING ; Jiyan CHAI ; Shouyan WANG ; Deshan WANG
Chinese Journal of Pathophysiology 2010;26(2):318-321
AIM: To observe the expressions of aquaporin 2 (AQP2) in kidney tissues and the contents of endotoxin (ET), interleukin-1 β (IL-1β), tumor necrosis factor-α (TNF-α) in serum in emphysema model rats, and to investigate the relationship between lungs and kidney in humoral metabolism. METHODS: The rats of emphysema were treated by injecting lipopolysaccharide into the trachea with cigarette smoking. Immunohistochemistry and Western blotting analysis were used to observe the expression of AQP2 in kidney tissues. RT-PCR was applied to detect the expression of AQP2 mRNA in kidney tissues. Blood sample and lung tissue were taken and the levels of ET, IL-1β and TNF-α were measured by radioimmunoassay. RESULTS: AQP2 expression in the kidney tissue in model group was greater than that in control group, and the expression of AQP2 mRNA showed the same results (P<0.01). ET, IL-1β and TNF-α levels in serum and lung tissue in model group were markedly higher than those in control group (P<0.01). CONCLUSION: In the emphysema model rats, AQP2 expression is up-regulated in the kidney tissue. The mechanism of emphysema may be related to increasing the levels of ET, IL-1β and TNF-α in the serum and lung tissue obviously.
7.Accuracy Assessment of Type III Portable Monitor of Sleep Apnea for In-hospital Patients With Cardiovascular Disease
Ling WANG ; Jiawei ZHANG ; Bixia HUANG ; Rui WANG ; Jianfang LUO ; Jiyan CHEN
Chinese Circulation Journal 2017;32(5):485-488
Objective: To assess the accuracy and application value of type III portable monitor (III PM) of sleep apnea (SA) for in-hospital patients with cardiovascular disease (CVD). Methods: A total of 101 CVD patients received sleep apnea monitoring by both type II polysomnography ( II PSG) and III PM were enrolled to compare the apnea-hypopnea index (AHI) measured by 2 instruments. AHI was assigned into 4 grades: Normal (AHI<5), Mild grade (5≤AHI<15), Moderate grade (15≤AHI<30) and Severe grade (AHI≥30). Kendall correlation coefficient and Kappa value were calculated, pair wise t test was conducted in relevant patients. Results: II PSG and III PM measured AHI were (18.0±16.6) events/h and (18.6±17.4) events/h, P>0.05. Kendall correlation coefficient for 4 AHI grades was 0.701, P<0.01 which assumed strong correlation; Kappa value of consistency was 0.493, P<0.01 which assumed medium strong correlation. Using AHI≥15 as cut-off point, Kappa coefficient for the consistency between II PSG and III PM was 0.679, P<0.05, which meant high consistency. Taking II PSG as standard and AHI≥15 as cut-off point, the AUC of III PM measured AHI was 0.918 with the specificity at 80.4% and sensitivity at 87.3%. The best diagnosing cut-off value of III PM was AHI=15.70, at this point, the maximum Youden's index was obtained as 0.695. Conclusion: Using AHI≥15 as standard, III PM and II PSG had the favorable consistency and accuracy for monitoring the severity of SA for in-hospital patients with cardiovascular disease. AHI=15.7 was the best cut-off point of III PM in diagnosing moderate and severe SA in relevant patients.
8.Surface-enhanced Raman Scattering Effect of Silver Dendritic Nanostructures
Shaoyun CHEN ; Yuan WANG ; Hui LIU ; Chenglong HU ; Xueqing LIU ; Jiyan LIU
Chinese Journal of Analytical Chemistry 2017;45(3):374-380
The facile and efficient synthetic route for Ag dendritic nanostructures on Indium tin oxide ( ITO) via electrodeposition was reported. The results showed that the Raman intensities of rhodamine 6G ( R6G) decreased with decreasing the loading concentration, and even at a low concentration of 10-10 mol/L, the signatures of R6G in Raman spectrum were still clearly observed. It indicated that the Ag dendritic nanostructures exhibited high surface-enhanced Raman scattering ( SERS) sensitivity. Moreover, the relative standard deviation ( RSD ) of band at 610 cm-1 was calculated to be 12 . 1%, 12 . 0%, 11 . 7%, 10 . 9%, 13. 2% and 14. 3%, respectively, corresponding with the concentration of R6G from 10-5 mol/L to 10-10 mol/L, which revealed that the Ag dendritic nanostructures could provide abundant hot spots and exhibited excellent reproducibility. In addition, the SERS spectrum of 3-mercaptopropionic acid (3MPA) also could be detected when its concentration was 10-5 mol/L. This method offers an easy and low-cost way to prepare Ag dendritic substrates and makes SERS detection more practicable.
9.Effect on the level of T cells immunity and mechanism of apoptosis in the Oral lichen planus patients induced by the total paeony glycoside
Xia YANG ; Jiyan HUANG ; Ming WANG ; Xuerong XIANG ; Jieyi LI ; Xingqi ZENG ; Conghua LI
Chongqing Medicine 2015;(26):3622-3624,3627
Objective Observe the effect of Total paeony glycoside(TPG)has on the T-cell immune action and apoptosis process of Oral lichen planus patients and analyze the mechanism.Methods 20 OLP patients are recruited into this experiment, each is treated with TPG,and their clinical effect is taken notes of.Observe the apoptosis of OLP lesions from each of the patients before and after the treatment,compare the apoptosis condition and the expression of CD4 + ,CD8 + ,and the CD4 +/CD8 + ratio,to analyze the role TPG plays on the immune expression of T-cell and the effect on apoptosis process.Results TPG improve the clini-cal manifestation of OLP patients significantly,resulting in the decrease of reticulum and erosive areas,and the pain index is de-creased obviously.The expression of CD4 + and CD8 + are decreased in OLP lesions after the treatment of TPG.Conclusion TPG may induce the apoptosis of the T-cell in lamina propria of the OLP lesions to regulate the T-cell immune action of OLP patients, and slow the development of inflammatory process of OLP,and in that way,TPG shows its potential in treating OLP,and this ex-periment can provide the primary evidence.
10.Value of 3.0T MRI in the preoperative diagnosis and staging of elderly cervical carcinoma
Jiping WANG ; Lan TONG ; Li ZHANG ; Rongkui ZHANG ; Lin MU ; Jiyan LENG
Chinese Journal of Geriatrics 2012;(12):1090-1091
Objective To explore the value of 3.0T MRI in preoperative diagnosis and staging of elderly cervical carcinoma.Methods Totally 73 patients were enrolled in this trial.The MRI features of cervical carcinoma and invasion of adjacent tissue were evaluated,the correlation of MRI staging and pathological staging was studied.Results MRI showed lesions in 73 patients,the accuracy of diagnosis for uterine cervical carcinoma was 100.0 %,for parametrial invasion was 94.2 %.The results of MRI staging of 52 cases showed the accuracy was 88.5% (46 cases) as compared with postoperative pathology.The correlation between the MRI and postoperative pathology in the stages of Ⅰ B,Ⅱ A and Ⅱ B uterine cervical cancer was very well(x2 = 61.43,P<0.01),the consistency of MRI in the diagnosis of uterine cervical cancer in stage Ⅲ and Ⅳ with postoperative pathology was extremely strong(100%).Conclusions The accuracy of diagnosis and staging for uterine cervical carcinoma is high in MRI imaging.