1.Chemical constituents from Clerodendrum inerme
Haihan NAN ; Si ZHANG ; Jun WU
Chinese Traditional and Herbal Drugs 1994;0(04):-
Objective To study the chemical constituents from Clerodendrum inerme.Methods The constituents were isolated and repeatedly purified on silica gel column chromatography and their structures were elucidated by spectral analysis.Results Eight compounds: friedelin (Ⅰ), stigmasterol (Ⅱ), betulinic acid (Ⅲ), acacetin (Ⅳ), syringic acid (Ⅴ), p-methoxybenzoic acid (Ⅵ), apigenin (Ⅶ), and daucosterol (Ⅷ) were isolated from the aerial part of C.inerme. Conclusion Compounds Ⅱ, Ⅲ, Ⅴ, Ⅵ, and Ⅷ are isolated from C.inerme for the first time.
2.Study on thermoanalysis-based calamina processing.
Xiang-Long MENG ; Jun-Nan MA ; Nan-Nan CUI ; Yu-Hang PIN ; Kun LI ; Shuo-Sheng ZHANG
China Journal of Chinese Materia Medica 2013;38(24):4303-4308
Thermogravimetry (TG), TG-MS, Fourier transform infrared spectroscopy (FTIR), scanning electron microscope (SEM)-energy dispersive spectrometer(EDS) were adopted to investigate the pyrolysis characteristics of calamina. According to the findings of the qualitative and quantitative studies on the changes in the content of relevant elements, the whole shape, the functional groups, and the volatile components of calamina before and after being pyrolyzed, the 200-360, 580-750 degrees C were two sensitive temperature ranges related to the changes in effective component during calamina processing. Thermal weight loss was observed for ZnCO3, Zn(OH)2 and ZnCO3-2Zn(OH)2-H2O under 200-360 degrees C and for CaCO3 under 580-750 degrees C. The results of studies on chemical reaction kinetics showed good linear relations. This experiment integrated relevant methods and theories of physical chemistry and science of traditional Chinese medicine processing, and interpretes calamina processing techniques and mechanism, in order to provide a good example for modem studies on other traditional Chinese medicine processing.
Drug Combinations
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Drug Compounding
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methods
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Ferric Compounds
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chemistry
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Kinetics
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Temperature
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Zinc Oxide
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chemistry
3.Analysis of blood infection markers of voluntary blood donors in Bengbu area of Anhui
Jun ZHANG ; Zheng GUAN ; Nan WANG ; Jiahong YU
Chinese Journal of Primary Medicine and Pharmacy 2011;18(20):2772-2773
ObjectiveTo study infection status of voluntary blood donors and epidemic trends of related infectious diseases in Bengbu area.MethodsBlood infection markers(ALT, HBsAg,Anti-HCV,TP and Anti-HIV) of 130 118 voluntary blood donors were detected.Voluntary blood donors were divided into college students group,reservation group and street group.Then, the positive rates of blood infection markers of three groups were compared.ResultsAccounting for 4.41% ,5 748 voluntary donors of 130 118 volunteers were unqualified.The positive infection rates of students group, reservation group and street group were 2.42%, 4.08% and 4.85%.The statistical differences of ALT and anti-HCV among these groups were significant (x2 = 35.07,12.31,12.45,116.49, all P <0.01),and no statistical significance was found in ALT difference among these groups(x2 = 3.82,0.59, all P >0.05).ConclusionThe infection rates of these blood donation related diseases of voluntary donors in bengbu aera showed increasing tendency, and that of college students in bengbu area was relatively lower.
4.Preparation and vitality detection of protoplast in Salvia miltiorrhiza Bunge.
Nan ZHU ; Jun LIU ; Xinyu ZHANG ; Juan'e DONG
Chinese Journal of Biotechnology 2014;30(10):1612-1621
We prepared protoplasts from Salvia miltiorrhiza Bunge suspension culture cells. Then, the protoplasts' vitality and functions were tested by fluorescein diacetate staining method and Fluo-3/AM flourescent probe. The optimal condition of protoplast isolation was Cellulase R-10 1.5%, Pectinase Y-23 0.3%, Macerozyme R-10 0.5%, 40 r/min 12 h, 600 r/min 5 min, and the protoplasts yield was 1.1x10(6) cells/g FW, the vitality was more than 95% by using fluorescein diacetate staining method. It has been confirmed that calcium fluorescent probe Fluo-3/AM can be successfully loaded into protoplasts.
Aniline Compounds
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chemistry
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Cell Culture Techniques
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Cellulase
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chemistry
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Fluorescent Dyes
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chemistry
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Protoplasts
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chemistry
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Salvia miltiorrhiza
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growth & development
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Xanthenes
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chemistry
5.The clinical features of 27 patients with Kennedy's disease
Ming LU ; Dongsheng FAN ; Jun ZHANG ; Huagang ZHANG ; Dexuan KANG ; Haiyan ZHAO ; Nan ZHANG
Chinese Journal of Neurology 2008;41(7):452-454
Objective To analyze the clinical features of 27 Chinese patients with Kennedy's disease(KD), a sex-linked inheritance disorder. Methods We collected the clinical data of 27 KD patients whose diagnosis were confirmed by gene examination to analyze their clinical features, as well as their serum levels of sex hormones and biochemical indicators. Results Patients with spinal and bulhar muscular atrophy tend to have an adult onset, exhibiting a slow progression of lower motor neuronal weakness and atrophy involving limbs and bulbar zones. Part of the invalids presented signs of androgen insensitivity such as gynecomastia or reduced sexual function, even though their degrees of sex hormones were normal. There was mild motor functional lesion which correlated with the course of the disease ( r = 0. 77, P = 0. 000). The degrees of creatine kinase ( ( 920. 10 ± 495.54 ) U/L ) and triglyceride ( ( 3.27 ± 2. 78) mmool/L) increased mildly and was significantly different from the levels of healthy ones (107.20 U/L,t =7.517,P =0.000;1.40 mmol/L, t =2.687,P =0.017). Conclusions Basically, Chinese KD patients present the same clinical features as the literature reports, however they have distinctive aspects such as elevated degree of triglyceride. The present research can help us to understand the features of Chinese KD more particularly.
6.Cognition of Patients with Juvenile Myclonic Epilepsy
Xingqi YAO ; Xiaoyun LIU ; Dan WU ; Zhe LI ; Yanfeng YANG ; Nan ZHANG ; Jun ZHANG ; Wei SUN
Chinese Journal of Rehabilitation Theory and Practice 2017;23(6):701-704
Objective To investigate the cognitive function and psychological mental state of patients with juvenile myoclonic epilepsy (JME), and the related risk factors. Methods From September, 2011 to Febrary, 2014, 21 patients with JME and 18 healthy controls matched with age, sex and educational level were assessed with Montreal Cognitive Assessment (MoCA), and Revised Chinese Wechsler Adult Intel-ligence Scale (WAIS-RC) and Symptom Checklist-90 (SCL-90). The risk factors were analyzed with Logistic regression analysis. Results There was no significant difference in the score of MoCA between two groups (t=―1.544, P=0.131). The scores of verbal intelligence quo-tient (VIQ), performance intelligence quotient (PIQ) and full intelligence quotient (FIQ) in WAIS-RC were significantly lower in the patient group than in the control group (t>4.119, P<0.001). The scores of interpersonal sensitivity, depression, anxiety, hostility, phobic anxiety, par-anoid ideation and psychoticism in SCL-90 were significantly higher in the patient group than in the control group (t>2.480, P<0.05). Logis-tic regression analysis showed that VIQ significantly decreased in patients taking valproic acid (B=―3.064, OR=0.047, 95% CI=0.002~0.920, P=0.044). Conclusion VIQ, PIQ and FIQ decreased in patients with JME. Furthermore, different levels of dysfunction were found in interpersonal sensitivity, depression, anxiety, hostility, phobic anxiety, paranoid ideation and psychoticism. Taking valproic acid was the risk factor of cognitive decline.
7.Change of reactive oxygen species production in co-culture model of rat astrocytes and motor neurons VSC 4.1
Lu TANG ; Yuehong PEI ; Nan ZHANG ; Weidong LE ; Dongsheng FAN ; Min DENG ; Jun ZHANG
Chinese Journal of Pathophysiology 2009;25(12):2441-2446
AIM: To explore the mutual effect of co-culture of wild-type astrocytes (ASC) and motor neurons VSC4.1 (VSC) on the respective ability to produce reactive oxygen species (ROS). METHODS: The inhibition rates of cell growth in ASC and VSC in co-culture or independent culture was detected after exposed to excitatory stimulus by MTT method. Real-time observation of ROS production by ASC and VSC labeled with Hoechst 33342 was detected by confocal microscopy under the conditions of co-culture or independent culture. RESULTS: Higher concentration of glutamate induced a higher inhibition rate in mixed cell growth than that in ASC alone, while lower concentration of glutamate induced a higher inhibition rate in mixed cell growth than that in VSC only. Real-time observation by confocal microscopy showed that ROS production by VSC under the condition of co-culture, which showed a notable increase at 15 min, was significant less than that in independent culture, which peaked at 5 min and was gradually decreased. ROS production by ASC in co-culture began to increase significantly at 10 min. CONCLUSION: Compared to independent culture, ASC reduces the resting ROS production by co-cultured with VSC, while ASC prolongs the duration of ROS production by VSC after exposed to excitatory stimulus.
8.Visual quality of Q-factor guided LASEK for myopia and astigmatism with positive Q-factor
Jiao-Jiao, WANG ; Li-Jun, ZHANG ; Fan-You, ZHANG ; Qian, HAN ; Ya-Nan, MU
International Eye Science 2014;(8):1478-1480
AIM: To explore the long-term efficacy of Q-factor guided laser epithelial keratomleusis ( LASEK ) for myopia and astigmatism with positive Q-factor.
METHODS: There were 158 eyes which were myopia and astigmatism with positive Q- factor taken in two groups randomly: 86 eyes accepted Q - factor guided LASEK as observation group and 72 eyes accepted routine LASEK as control group. The difference between the two groups about all data was similar. The uncorrected visual acuity ( UCVA ) and the best corrected visual acuity ( BCVA ) as well as diopter, ocular tension, corneal topography, Keratometry value K, aspherical factor Q, Higher-order aberrations ( HOA ) , corneal thickness by ultrasound and, contrast sensitivity ( CS ) , Haze were examined and compared before and after surgery. All the cased were followed up for 14d, 1, 3, 6, 12mo. And there were no statistical difference among the data before surgery.
RESULTS: After 12mo there were no statistical difference between the two groups about UCVA and BCVA. But the safety index of observation group was 1.10, that of control group was 1. 07. The validity index of observation group was 1. 06, that of control group was 0.99. The HOA of observation group was 0. 45±0. 17μm, and that of control group was 0. 72±0.25μm, there was statistically significant difference (t=-8. 193,P=0. 000). Q factor of observation group was 0. 41±0. 17, that of control group was 0. 77±0. 22, there was significant difference (t=11. 377,P = 0. 028). The contrast sensitivity of 3mo post surgery of patients in the observation group returned to the level of before surgery. But in the control group the contrast sensitivity of the patients did not returned until 6mo.
CONCLUSION:Q-factor guided LASEK for myopia and astigmatism with positive Q-factor is stable, safe and effective. The operation allow for reducing the high order aberrations, maintaining the most asphericity of cornea, saving more in corneal tissue, which cause faster recovery of contrast sensitivity, less haze and better visual quality.
9.CT and MRI diagnosis of intracranial germ cell tumors
Yanping JING ; Xiaodong NAN ; Bin LUO ; Zhengrong GAO ; Jun ZHANG ; Xin XIN ; Yan ZHANG ; Jingliang CHENG
Journal of Chinese Physician 2014;(z1):40-43
Objective To study the features of CT and MRI diagnosis of intracranial germ cell tumors ,and to improve the un-derstanding of its imaging findings .Methods Fifteen cases of intracranial germ cell tumors proved by pathology and follow-up were retrospectively analyzed .Results Among the 15 cases with intracranial germ cell tumors ,9 cases in pineal body , tumours showed like-round masses,the margin of the masses were well defined .CT was slightly high density,MRI revealed isointense or hypointense signals on T1 weighted and homogeneous hyperintense signals on T 2 weighted image without edema around tumors and homogeneous en-hancement.One cases in CSF spread.Four cases were identified in the saddle-up area, among the 2 cases was cystic,1 cases was sol-id-cystic and 1 cases was solid,CT was isointense or high density in solid,low density in cystic,without edema around tumors.MRI re-vealed slight-hypointense signals on T 1 weighted and hyperintense signals on T 2 weighted image clearly enhanced in solid , cystoid with-out enhance .In the other 2 cases of intracranial germ cell tumors in the basal ganglia region ,CT was inhomogeneous high density ,inho-mogeneous signals on T2 and T1 weighted image, inhomogeneous enhancement .Conclusions Intracranial germ cell tumors show char-acteristic manifestations on CT and MRI,according to location,shape,signal,age characteristic,which is helpful in diagnosis and differ-ential diagnosis and guide treatment plan .
10.Correlation analysis of early prognosis of progressive neurological deterioration and cerebral watershed infarction:a clinical study
Yi XIE ; Xiaohao ZHANG ; Zhongming QIU ; Jun ZHANG ; Lian YANG ; Xia XIE ; Nan MA ; Xinfeng LIU
Chinese Journal of Cerebrovascular Diseases 2014;(10):505-510
Objective To investigate the effect of progressive neurological deterioration ( PND) of cerebral watershed infarction on early prognosis. Methods The consecutive patients with cerebral watershed infarction admitted in the Department of Neurology,Jinling Hospital,Nanjing University School of Medicine and their cerebral watershed infarctions confirmed by the imaging examination from March 2009 to March 2014 were enrolled. The clinical features, laboratory indicators and imaging features of internal watershed infarction,cortical-type watershed infarction,and mixed watershed infarction were identified and analyzed. The National Institutes of Health Stroke Scale was used to score neurological deficit. The modified Rankin scale ( mRS) was used to score the prognosis of patients. Single factor analysis was used to compare the differences between the groups. At the same time,the correlation between PND and poor prognosis of cerebral watershed infarction at day 90 was analyzed by multivariable Logistic regression analysis. Results A total of 89 patients with cerebral watershed infarction were enrolled,including 43 cortical-type watershed infarctions,36 internal watershed infarctions, and 10 mixed watershed infarctions. Single factor analysis indicated that the incidences of PND of internal watershed infarction and mixed watershed infarction were significantly higher than the cortical-type watershed infarction (36. 1% [n=13],50. 0% [n=5], and 16. 3% [n=7],respectively;P=0. 018). At day 90,28 patients had poor prognosis,and mRS was (3.4±1. 0) scores at day 90. There was significant difference in the types of infarction between the patients with poor prognosis and patients with good prognosis (P<0. 05). In patients with poor prognosis, most of them were internal watershed infarctions,accounting for 50. 0% (14/28),while in patients with good prognosis,most of them were cortical-type watershed infarctions(57. 4% [35/61]). The incidence of PND in patients with poor prognosis was significantly higher than that in patients with good prognosis (57.1% [16/28] vs. 14. 8% [9/61];P<0. 05). The result of multivariate Logistic regression analysis showed that after adjustment for confounding factor, PND was independently associated with the poor prognosis of cerebral watershed infarction at day 90 (OR 6. 969,95%CI 2. 451-19. 869;P<0. 01). Conclusion Compared with the cortical-type watershed infarction, the patients with internal watershed infarction is more prone to have PND, and PND is independently correlate with the poor prognosis at day 90.