1.Determination of the Contents of Berberine Hydrochloride in Spring Rain Burns Gels
Weiqiong REN ; Jianping LIAO ; Chengyuan WANG
Chinese Journal of Information on Traditional Chinese Medicine 2006;0(06):-
Objective To establish an HPLC method for determination the contents of berberine hydrochloride in spring rain burns gels. Methods Analytical column was Kromasil C18 (4.6 mm?250 mm, 5 ?m) column with a mobile phase of Acetonitrile-1%H3PO4-Triethylamine (24∶76∶0.76), the detective wavelength was 345 nm, the flow rate was 1.0 mL/min and column temperature was 30 ℃. Results A good linearity was obtained in the range of 0.088~0.440 ?g (r =0.999 7), and the average recovery was 98.13% with RSD=0.77% (n=6). Conclusion The method is rapid and reliable, and can be used for the quality control of spring rain burns gels.
2.Extraction Technology Optimization for Yushaoshang Liposomal Gels by Orthogonal Test
Weiqiong REN ; Rong OUYANG ; Ya LI ; Shan LI
China Pharmacist 2015;(1):20-22
Objective:To optimize the conditions in the extraction process of Yushaoshang liposomal gels. Methods: Using the content of hydrobererine and extract yield as the indices, the optimum extraction conditions were screened by orthogonal test. Results:The optimum extraction conditions were as follows:Rhizoma coptidis was crashed into small particles as 10 mesh sieve, heating extrac-ted three times with 10-fold,8-fold and 8-fold water, and extracting 3h, 2h and 2h,respectively. Conclusion:The extraction technology is reliable and available in the preparation of Yushaoshang liposomal gels.
3.Effect of Gouteng Jiangya Jieyu Perscription on Polarization of Hippocampal Microglia in Hypertensive Rats Complicated with Depression by Inhibiting TLR4/NF-кB Signaling Pathway
Danfeng MA ; Chuanxiang ZHANG ; Lei CHEN ; Cheng SHEN ; Hongxia ZHAO ; Weiqiong REN
Traditional Chinese Drug Research & Clinical Pharmacology 2024;35(2):174-182
Objective To investigate the effect of Gouteng Jiangya Jieyu Perscription(Uncariae Ramulus cum Uncis,Gastrodiae Rhizoma,Pheretima,Puerariae Lobatae Radix,etc.)modulating the TLR4/NF-кB signaling pathway on the polarization of hippocampal microglia in rats with hypertension complicated with depression(HD)Methods Forty primary hypertensive rats were randomly divided into five groups:the model group,the positive drug group,and the high-,medium-,and low-dose groups of Gouteng Jiangya Jieyu Perscription,with 8 rats in each group;and another 8 SD rats were taken as the control group.The HD model was replicated using 42 days of continuous chronic unpredictable mild stress(CUMS)combined with solitary rearing.The modeling was accompanied by the administration of drugs,including 29.61,14.81,and 7.40 g·kg-1 of Gouteng Jiangya Jieyu Perscription in the high-,medium-,and low-dose groups of Chinese herbal medicine,respectively,and 0.45 mg·kg-1 of Levamlodipine Besylate+1.8 mg·kg-1 of Fluoxetine in the positive group;the volume of the gavage was 10 mL·kg-1,once a day,for 42 consecutive days.The systolic blood pressure of rat tail artery was measured by non-invasive sphygmomanometer before drug administration and in the morning of the last day of each week;the behavioural test of Sucrose Preference Test(SPT)was carried out once in the second week and once in the last week after the start of the modelling;the water maze experiment was carried out after the end of the modelling;the levels of serum inflammatory factor tumor necrosis factor-α(TNF-α),interleukin(IL)1β and IL-10 were determined by ELISA;the pathological changes of rat hippocampal tissue neurons were observed by HE staining and Nissl stain were used to observe the neuronal pathological changes in rat hippocampal tissue;immunofluorescence double staining was used to detect the expressions of microglia M1(CD16)and M2(CD206)types in the hippocampal region;and Western Blot was used to detect the protein expressions of TLR4 and NF-кB p65 in the hippocampal tissue.Results Compared with the control group,the systolic blood pressure in the tail artery of rats in the model group from week 1 to week 6 were all significantly increased(P<0.01);sucrose preference rate was significantly decreased(P<0.01);evasion latency was significantly prolonged(P<0.05,P<0.01),the number of times of traversing the plateau and the percentage of time spent in the target quadrant were significantly decreased(P<0.01);the contents of serum TNF-α and IL-1β were significantly increased(P<0.01),IL-10 content was significantly decreased(P<0.01);cytosolic nuclei were deeply stained,cytoplasmic solidification and apoptosis were obvious;the fluorescence intensity ratio of CD206/CD16 in hippocampal microglial cells were significantly decreased(P<0.05);the protein expressions of TLR4 and NF-кB p65 in hippocampal tissues were significantly up-regulated(P<0.01).Compared with the model group,the systolic blood pressure in the tail artery of rats in the first to sixth weeks of the drug administration group were all significantly reduced(P<0.01);the sucrose preference rates were all significantly increased(P<0.05);the contents of serum TNF-α and IL-1β were significantly decreased(P<0.01),and the content of IL-10 was significantly increased(P<0.01);the Nissl substances are abundant and apoptosis is significantly reduced,and apoptosis were significantly reduced.The escape latency of rats in the positive drug group and the high-dose group of Gouteng Jiangya Jieyu Perscription was significantly shortened(P<0.05,P<0.01),and the number of times of crossing the plateau and the percentage of time spent in the target quadrant were significantly increased(P<0.05);the ratio of fluorescence intensity of hippocampal microglial cells,CD206/CD16 was significantly increased(P<0.05,P<0.01);and the hippocampal tissues,protein expressions of TLR4 and NF-κB p65 were significantly down-regulated(P<0.05,P<0.01).Conclusion Gouteng Jiangya Jieyu Perscription may regulate the polarisation state of hippocampal microglial cells,modulate the secretion of inflammatory factors,and attenuate the damage of hippocampal neurons in HD rats by inhibiting the TLR4/NF-кB pathway.
4.Effects of Gouteng Jiangya Jieyu Prescription on Learning and Memory Ability and Hippocampal Autophagy-Related Protein Expression in Rats with Hypertension Complicated with Depression
Hongxia ZHAO ; Yeqian LIU ; Lei CHEN ; Lingge HUANG ; Hong LI ; Danfeng MA ; Chunming CHEN ; Shuiqing ZENG ; Weiqiong REN
Traditional Chinese Drug Research & Clinical Pharmacology 2024;35(5):646-655
Objective To study the effects of Gouteng Jiangya Jieyu Prescription(Uncariae Ramulus cum Uncis,Gastrodiae Rhizoma,Pheretima,Puerariae Lobatae Radix,Salviae Miltiorrhizae Radix et Rhizoma,etc.)on learning and memory ability,hippocampal inflammatory response and autophagy-related protein expression in rats with hypertension complicated with depression(HD).Methods Thirty spontaneously hypertensive rats(SHR)were randomly divided into model group,positive control group(Levamlodipine Besylate 0.45 mg·kg-1+Fluoxetine Hydrochloride 1.80 mg·kg-1)and Gouteng Jiangya Jieyu Prescription high-,medium-and low-dose groups(25.38,12.69,6.34 g·kg-1).Another 6 SD rats were used as blank control group.The SHR rats were intervened by chronic mild unpredictable stress combined with solitary rearing to replicate the HD rat model.At the same time,intragastric administration was given once a day for 6 weeks.The systolic blood pressure and diastolic blood pressure of rat tail artery were measured by non-invasive sphygmomanometer.The learning and memory ability of rats was detected by Morris water maze test.The ultrastructure of hippocampal neurons was observed by transmission electron microscope.The contents of interleukin-1β(IL-1β),IL-18 and IL-10 in hippocampus were detected by ELISA.The expression of autophagy-related proteins Beclin1 and Bcl-2 in hippocampus was detected by immunohistochemistry.The expression of autophagy-related proteins LC3Ⅰ and LC3Ⅱ in hippocampus was detected by Western Blot.Results Compared with the blank control group,the SBP and DBP of the rats in the model group were significantly increased from week 1-6(P<0.01).The escape latency was significantly prolonged on the third and fourth day(P<0.01).The first time of crossing the platform was significantly prolonged(P<0.01),the times of crossing the platform area was significantly reduced(P<0.05),and the retention time of the platform area was significantly shortened(P<0.01).The neuronal cell body was obviously swollen,the ridge was destroyed,the nucleus was shrunk,and a large number of autophagosomes appeared;the contents of IL-1β and IL-18 in hippocampus were significantly increased(P<0.01).The ratio of LC3Ⅱ/LC3Ⅰ protein expression and the expression of Beclin1 protein in hippocampus were significantly up-regulated(P<0.05,P<0.01),and the expression of Bcl-2 protein was significantly down-regulated(P<0.01).Compared with the model group,the SBP of rats in the low-dose group of Gouteng Jiangya Jieyu Prescription was significantly decreased at the weeks 1,3,4,5,6(P<0.01),and the DBP was significantly decreased at weeks 1,3,4,5(P<0.05,P<0.01).The SBP of the rats in the medium-dose group of Gouteng Jiangya Jieyu Prescription was significantly decreased at weeks 1,5,6(P<0.01),and the DBP was significantly decreased at week 4(P<0.05).The SBP of rats in the high-dose group of Gouteng Jiangya Jieyu Prescription was significantly decreased in the first week(P<0.01).The escape latency of rats in the high-and medium-dose groups of Gouteng Jiangya Jieyu Prescription was significantly shortened on the third day(P<0.05),and the escape latency of rats in the high-and low-dose groups of Gouteng Jiangya Jieyu Prescription was significantly shortened on the fourth day(P<0.05).The first crossing platform time of rats in the high-,medium-and low-dose groups of Gouteng Jiangya Jieyu Prescription was significantly shortened(P<0.01).The times of rats crossing the platform area in the medium-and low-dose groups of Gouteng Jiangya Jieyu Prescription were significantly increased(P<0.05),and the retention time in the platform area was significantly prolonged(P<0.05).In the administration group,the degree of hippocampal neuron damage was reduced,the nuclear shrinkage was significantly improved,and the autophagosomes were reduced.The contents of pro-inflammatory factors IL-1β and IL-18 in the hippocampus of rats in the high-and medium-dose groups of Gouteng Jiangya Jieyu Prescription were significantly decreased(P<0.05,P<0.01).The content of anti-inflammatory factor IL-10 in the hippocampus of rats in the high-dose group of Gouteng Jiangya Jieyu Prescription was significantly increased(P<0.01).The protein expression ratio of LC3Ⅱ/LC3Ⅰ in hippocampus of high-,medium-and low-dose groups of Gouteng Jiangya Jieyu Prescription was significantly down-regulated(P<0.01),and the expression of Bcl-2 protein was significantly up-regulated(P<0.01).The expression of Beclin1 protein in the hippocampus of the high-and medium-dose groups of Gouteng Jiangya Jieyu Prescription was significantly down-regulated(P<0.05,P<0.01).Conclusion Gouteng Jiangya Jieyu Prescription can reduce the tail arterial pressure of HD rats,improve their learning and memory ability,and alleviate hippocampal neuronal damage.The mechanism may be related to reducing the release of inflammatory factors,increasing the level of anti-inflammatory factors,and regulating the expression of hippocampal autophagy-related proteins LC3Ⅱ/LC3Ⅰ,Beclin1 and Bcl-2.
5.Effects of Lindera aggregate of Stir-baking with Vinegar- Aucklandia lappa on Gastric Emptying and Gastrointestinal Hormones in Functional Dyspepsia Liver Depression and Qi Stagnation Model Rats
Shuhui TAN ; Weiqiong REN ; Bohou XIA ; Limei LIN ; Rong OUYANG
China Pharmacy 2019;30(5):684-688
OBJECTIVE: To investigate the effects of Lindera aggregate of stir-baking with vinegar-Aucklandia lappa on gastric emptying and gastrointestinal hormones in functional dyspepsia liver depression and qi stagnation (FDLDQS) model rats. METHODS: Totally 60 SD rats were randomly divided into blank group (n=10) and modeling group (n=50); FDLDQS model was induced by chronic stress restraint or food deprivation or excessive fatigue in modeling group. After modeling, model rats were randomly divided into model group (normal saline), L. aggregate of stir-baking with vinegar group (1.62 g/kg, calculated by crude drug), A. lappa group (1.62 g/kg, calculated by crude drug), L. aggregate of stir-baking with vinegar-A. lappa group (1 ∶ 1, m/m,1.62 g/kg, calculated by crude drug) and mosapride group (positive control, 1.35 mg/kg), with 10 rats in each group. Administration groups were given relevant medicine intragastrically once a day; blank group and model group were given constant volume of normal saline intragastrically, for consecutive 14 d. 2 h after last medication, gastric emptying rate and small intestinal propulsion rate of rats in each group were measured by phenol red content method. After HE staining, the morphological changes of antrum tissue were observed under microscope. The contents of motilin (MTL), gastrin (GAS) and cholecystokinin (CCK) in serum were determined by ELISA method. RESULTS: Compared with blank group, gastric emptying rate and small intestinal propulsion rate of rats were decreased significantly in model group (P<0.01); the serum contents of MTL and GAS were decreased significantly (P<0.01), while the content of CCK was increased significantly (P<0.01). No organic damage was found in all model groups. Compared with model group, L. aggregate stir-baking with vinegar group and A. lappa group, gastric emptying rate and small intestinal propulsion rate of rats were increased significantly in L. aggregate of stir-baking with vinegar-A. lappa group and mosapride group (P<0.05 or P<0.01); serum contents of MTL and GAS were increased significantly (P<0.01), while the content of CCK was decreased significantly (P<0.01). CONCLUSIONS: L. aggregate of stir-baking with vinegar-A. lappa can accelerate gastric emptying and small intestinal propulsion rate of FDLDQS rats, increase serum contents of MTL and GAS but decrease the content of CCK; its effects are better than that of them alone.