1.Action of hydroxyanthroquinones from Rheum Palmatum L on jaundice model of rat induced by ANIT
Chinese Pharmacological Bulletin 2003;0(10):-
Aim To observe the action of hydroxyanthroquinones from Rheum Palmatum L on reduced jaundice and enzyme in acute jaundice model of rat induced by ANIT.Methods Wistar rats were randomized into five groups: group A in which no treatment was given,group B in which ANIT was given on the eighth day,group C in which high dosage of hydroxyanthroquinones from Rheum Palmatum L was given,group D in which low dosage of hydroxyanthroquinones from Rheum Palmatum L was given,group E in which "Yinzhihuang injection" was given as positive control.Except group A and B,other groups were given corresponding drugs for 7 days and then additionally administered ANIT to induce jaundice on the eighth day.Forty-eight hours later,the rats′ blood was gained from eyes and the serum was separated.The liver functional sign,the activity of SOD,the content of MDA in serum and change in pathology of liver tissue were observed.Results Compared to group B,ALT,AST,TBIL,ALP,?-GT ,MDA of group C and E descended obviously(P0.05).Conclusion Hydroxyanthroquinones from Rheum Palmatum L has the action of reducing serum bilirubin and transaminase and improving liver tissue injury in rats of experimental Cholestasis.
3.Quantitative Determination of Hyodeoxycholic Acid in Calculus Bovis Antidote Tablet by TLC Scanning
Shaohuei WAN ; Zhaotao LI ; Shaohui WAN
Chinese Traditional and Herbal Drugs 1994;0(08):-
Hyodeoxycholic acid in Calculus Bovis Antidote tablet was determined quantitatively by dual wavelength TLC scaning. The experiment was carried out on silica gel-G plates with chloroform -ether-glacial acetic acid (2:2:1) as the mobile phase, and ethanol solution of phosphomolybdic acid (10% ) as developer, at ?s=700nm,?R= 450nm. Recovery was 103. 4% and RSD=3. 2% (n=5 ). This method is accurate and convenient It can also be used for quantitative analysis of other preparations containing hyodeoxycholic acid
4.TLC Identification of Rhizoma Chuanxiong and HPLC Determination of Ferulic Acid in Ganning Granula
Xiaohui PU ; Hui ZHAO ; Xiaoming ZHANG ; Shaohui WAN
China Pharmacy 2005;0(18):-
OBJECTIVE: To establish methods for the identification of Rhizoma Chuanxiong and determination of Ferulic acid( FA) in Ganning granula. METHODS: The identification of Rhizoma Chuanxiong was carried out by TLC and the determination of FA was by performed by HPLC. FA was separated on Kromasil ODS-1 C18 column with water-methanol-acetic acid ( 30∶ 69. 5∶ 0. 5) as mobile phase. The detection wavelength was 322nm, the column temperature was set at room temperature and the flow rate was 1. 0mL? min-1. RESULTS: The TLC spots of the sample presented the same color as its counterparts of Rhizoma Chuanxiong standard and FA reference substance at the corresponding sites. The linear range of FA was 0. 010 12 ~ 0. 151 80? g( r=0. 999 9, n=8) . The average recovery was 97. 39% ( RSD=1. 97% ) . CONCLUSION: The methods of identification and content determination were rapid, accurate, specific and reproducible, and which are suitable for the quality control of Ganning granula.
5.Determination of anthraquinone aglycones of Radix et Rhizome Rhei in Ganning Granule by HPLC
Shumei YUE ; Lingling FENG ; Xiaoxiao QI ; Shaohui WAN
Chinese Traditional Patent Medicine 1992;0(08):-
AIM:To determine Radix et Rhizoma Rhici in Ganning Granula(Radix et Rhizoma Rhei,Rhizoma Chuanxiong). METHODS: In order to determine five anthraquinone aglycones of Radix et Rhizoma Rhei,the HPLC system consisted of Nucleosil ODS column,methand-0.1% phosphoric acid(85∶15) mixture as mobile phase,with detection wavelength at 430 nm. RESULTS: HPLC showed that the linearity ranges were as follows: aloe-emodin concentration was at the range of 0.041 6-0.291 2 ?g,the rhein concentration was at the range of 0.037 1-0.259 8 ?g,the emodin concentration was at the range of 0.045 8-0.320 3 ?g,the chrysophanol concentration was at the range of 0.049 60.347 2 ?g,the physcion concentration was at the range of 0.020 6-0.144 5 ?g.The average recoveries of five anthraquinone aglycones were between 96.6%-98.4%.CONCLUSION: The method is simple,accurate,sensible and with good repeatability and can be used for quality control of Ganning Granule.
6.Effects of mechanical tension on the formation of hypertrophic scars in rabbit ears and transforming growth factor-β 1/Smad signaling pathway
Peng CAO ; Yunwei WANG ; Hao GUAN ; Yunshu YANG ; Shaohui LI ; Yang CHEN ; Chan ZHU ; Yu WAN ; Liying REN ; Ming YAO
Chinese Journal of Burns 2022;38(12):1162-1169
Objective:To explore the effects of mechanical tension on the formation of hypertrophic scars in rabbit ears and transforming growth factor-β 1 (TGF-β 1)/Smad signaling pathway. Methods:The experimental research method was adopted. Six New Zealand white rabbits, male or female, aged 3-5 months were used and 5 full-thickness skin defect wounds were made on the ventral surface of each rabbit ear. The appearance of all rabbit ear wounds was observed on post surgery day (PSD) 0 (immediately), 7, 14, 21, and 28. On PSD 28, the scar formation rate was calculated. Three mature scars in the left ear of each rabbit were included in tension group and the arch was continuously expanded with a spiral expander. Three mature scars in the right ear of each rabbit were included in sham tension group and only the spiral expander was sutured without expansion. There were 18 scars in each group. After mechanical tension treatment (hereinafter referred to as treatment) for 40 days, the color and texture of scar tissue in the two groups were observed. On treatment day 40, the scar elevation index (SEI) was observed and calculated; the histology was observed after hematoxylin eosin staining, and the collagen morphology was observed after Masson staining; mRNA expressions of TGF-β 1, Smad3, collagen Ⅰ, collagen Ⅲ, and α-smooth muscle actin (α-SMA) in scar tissue were detected by real-time fluorescence quantitative reverse transcription polymerase chain reaction; and the protein expressions of TGF-β 1, collagen Ⅰ, collagen Ⅲ, and α-SMA, and phosphorylation level of Smad3 in scar tissue were detected by Western blotting. The number of samples of each group in the experiments was 3. Data were statistically analyzed with independent sample t test. Results:On PSD 0, 5 fresh wounds were formed on all the rabbit ears; on PSD 7, the wounds were scabbed; on PSD 14, most of the wounds were epithelialized; on PSD 21, all the wounds were epithelialized; on PSD 28, obvious hypertrophic scars were formed. The scar formation rate was 75% (45/60) on PSD 28. On treatment day 40, the scar tissue of rabbit ears in tension group was more prominent than that in sham tension group, the scar tissue was harder and the color was more ruddy; the SEI of the scar tissue of rabbit ears in tension group (2.02±0.08) was significantly higher than 1.70±0.08 in sham tension group ( t=5.07, P<0.01). On treatment day 40, compared with those in sham tension group, the stratum corneum of scar tissue became thicker, and a large number of new capillaries, inflammatory cells, and fibroblasts were observed in the dermis, and collagen was more disordered, with nodular or swirling distribution in the scar tissue of rabbit ears in tension group. On treatment day 40, the mRNA expressions of TGF-β 1, Smad3, collagen Ⅰ, collagen Ⅲ, and α-SMA in the scar tissue of rabbit ears in tension group were respectively 1.81±0.25, 5.71±0.82, 7.86±0.56, 4.35±0.28, and 5.89±0.47, which were significantly higher than 1.00±0.08, 1.00±0.12, 1.00±0.13, 1.00±0.14, and 1.00±0.14 in sham tension group (with t values of 5.36, 9.82, 20.60, 18.26, and 17.13, respectively, all P<0.01); the protein expressions of TGF-β 1, collagen Ⅰ, collagen Ⅲ, and α-SMA, and phosphorylation level of Smad3 in the scar tissue of rabbit ears in tension group were respectively 0.865±0.050, 0.895±0.042, 0.972±0.027, 1.012±0.057, and 0.968±0.087, which were significantly higher than 0.657±0.050, 0.271±0.029, 0.631±0.027, 0.418±0.023, and 0.511±0.035 in sham tension group (with t values of 5.08, 21.27, 15.55, 16.70, and 8.40, respectively, all P<0.01). Conclusions:Mechanical tension can inhibit the regression of hypertrophic scars in rabbit ears through stimulating the hyperplasia of scars, inhibiting the normal arrangement of dermal collagen fibers, and intensifying the deposition of collagen fibers, and the mechanism may be related to the activation of TGF-β 1/Smad signaling pathway by mechanical tension.