1.HPLC determination of metoclopramide and its related substances in metoclopramide nasal spray
Xianpeng FAN ; Jianxu SUN ; Junhai XIAO ; Daoquan TANG ; Aiping ZHENG
Military Medical Sciences 2015;(2):133-135
Objective To establish an HPLC method for the determination of metoclopramide (MCP) and its related substances in MCP nasal spray .Methods Chromatographic separation was performed on an Agilent TC-C18 column (250 mm ×4.6 mm,5 μm) using acetonitrile and phosphate buffer solution (0.05 mol/L potassium dihydrogen phosphate solution, added with 5 ml of triethylamine and adjusted to pH 4.0 with phosphoric acid)(19∶81) as the mobile phase at 1.0 ml/min.The detection wavelength was 275 nm and the column temperature was set at 30℃.Results and Conclusion Related substances were completely separated from MCP .For MCP,the linearity of determination was over the range of 10-200 μg/ml and the recovery of the method ranged from 100.3%to 101.6%.The relative standard deviation was 0.68%(n=9).The method is accurate, reliable, repeatable, and could be readily utilized as a quality control method for MSP nasal spray .
2.Effect of Lycopene on Expression of Interleukin-6 and Recovery of Neurological Function in Rats after Spinal Cord Injury
Jiali LI ; Lijuan TANG ; Xiao LI ; Yu CAO ; Zheng YANG
Chinese Journal of Rehabilitation Theory and Practice 2015;21(4):402-405
Objective To explore the effects of lycopene on interleukin-6 (IL-6) expression and motor function after spinal cord injury in rats. Methods 36 healthy adult Sprague-Dawley rats were randomly divided into control group (A), methylprednisolone sodium succinate (MP) treatment group (B) and lycopene treatment group (C) with 12 rats in each group, and spinal cord injury model at T9 was established with modified Allen's technique (10 g×25 mm). 30 minutes after modeling, group A received no treatment, group B was injected MP 30 mg/ kg, group C was given lycopene 20 mg/kg. They were tested with inclined plate test 1 day, 3 days and 7 days after injury. The expression of IL-6 was examined with immunohistochemistry, then. Results The inclined plate test scores were higher in the group C than in the group A 1 day and 7 days after injury (P<0.05), and in the group B than in the group A 1 day, 3 days and 7 days after injury (P<0.05). The expression of IL-6 was significantly lower in the groups B and C than in the group A 1 day, 3 days, 7 days after injury (P<0.001). Conclusion Lycopene can inhibit the expression of IL-6 in acute spinal cord injury to reduce the inflammation and facilitate the recovery of nerve and motor function.
3.Efficacy observation of Guan's quadruple therapy for kidney disease on the treatment of chronic renal failure.
Zheng ZUO ; Xiao-Mei CHEN ; Yun-Wu JIANG ; Xiao-Yun TANG ; Zun-Xin GUAN
Chinese Acupuncture & Moxibustion 2014;34(7):641-645
OBJECTIVETo compare the differences in the clinical efficacy between Guan's quadruple therapy for kidney disease and the conventional western medication in the treatment of chronic renal failure (CRF).
METHODSEighty patients were randomized into an observation group and a control group, 40 cases in each one. In the observation group, besides the physician instruction of low protein and low phosphorus diet in the two groups, Guan's quadruple therapy for kidney disease was applied, including (1) the isolated herbal moxibustion at Shenshu (BL 23) and Pishu (BL 21), or Ganshu (BL 18), Zusanli (ST 36) and Guanyuan (CV 4) alternatively; (2) acupuncture at the auricular points such as shen (CO10), jiaogan (AHR6), Shenshangxian (TG2), fei (CO14) and pizhixia (AT4); (3) injection of mixture of astragalus injection and lidocaine injection at Feishu (BL 13), Pishu (BL 21), Shenshu (BL 23) and the others; (4) modified Shenshuai Yihao decoction according to syndrome differentiation. In the control group, the conventional western medication was used. After 6 months of treatment, the differences were observed between the two groups in the clinical efficacy, serum creatinine (Scr), blood urea nitrogen (BUN), endogenous creatinine (Ccr) and 24 h urine protein quantitation (UPQ).
RESULTSIn the observation group, after treatment, the remarkably effective rate was 50.0% (20/40) and the total effective rate was 82.5% (33/40), which were superior to 25.0% (10/40) and 45.0% (18/40) in the control group (both P < 0.05). After treatment, the levels of Scr, BUN and 24 h UPQ were reduced apparently (all P < 0.05), and the level of Ccr was increased apparently in the two groups (both P < 0.05). After treatment, the levels of Scr, BUN and 24 h UPQ were reduced much more apparently in the observation group as compared with those in the control group (all P < 0.05).
CONCLUSIONGuan's quadruple therapy for kidney disease achieves a better efficacy on CRF compared with the conventional western medication. This therapy improves renal functions, relieves clinical symptoms and physical signs and benefits the life quality of patients.
Acupuncture Therapy ; Adult ; Combined Modality Therapy ; Drugs, Chinese Herbal ; administration & dosage ; Female ; Humans ; Kidney Failure, Chronic ; drug therapy ; physiopathology ; therapy ; Kidney Function Tests ; Male ; Middle Aged ; Young Adult
4.Association of non-HDL-cholesterol and non-HDL-cholesterol-to-HDL-cholesterol ratio with early diabetic nephropathy in patients with type 2 diabetes mellitus
Xiao ZHENG ; Wei ZHAO ; Qianying OU ; Shasha TANG ; Guangmin CHEN ; Ling FENG ; Hong ZHANG
Chinese Journal of Endocrinology and Metabolism 2014;30(3):216-217
The association of non-HDL-cholesterol and non-HDL-C-to-HDL-cholesterol ratio (non-HDL-C-to-HDL-C ratio) with early diabetic nephropathy in patients with type 2 diabetes mellitus was investigated.Non-HDL-C and non-HDL-C-to-HDL-C ratio were positively related with microalbuminuria (P<0.05 or P<0.01).Non-HDL-C-to-HDL-C ratio is an independent risk factor of early diabetic nephropathy in patients with type 2 diabetes mellitus.
5.SAR of benzoyl sulfathiazole derivatives as PTP1B inhibitors.
Wenwen YIN ; Zheng CHEN ; Yanbo TANG ; Fei YE ; Jinying TIAN ; Zhiyan XIAO
Acta Pharmaceutica Sinica 2014;49(5):632-8
Protein tyrosine phosphatase (PTP) 1B is a potential target for the treatment of diabetes and obesity. We have previously identified the benzoyl sulfathiazole derivative II as a non-competitive PTP1B inhibitor with in vivo insulin sensitizing effects. Preliminary SAR study on this compound series has been carried out herein, and thirteen new compounds have been designed and synthesized. Among them, compound 10 exhibited potent inhibition against human recombinant PTP1B with the IC50 value of 3.97 micromol x L(-1), and is comparable to that of compound II.
6.Could serum cystatin C be employed in diagnosing contrast-induced nephropathy after nonemergency endovascular therapy with peripheral arterial diseases?
Yanjiao YANG ; Xiao TANG ; Ying ZHOU ; Yin ZHENG ; Yingying CHEN ; Daqiao GUO ; Feng DING
Chinese Journal of Nephrology 2012;28(7):538-543
ObjectiveTo investigate the risk factors for contrast-induced nephropathy (CIN) after endovascular therapy in patients with peripheral arterial diseases and to evaluate the conformance of serum cystatin C (Cys C) and serum creatinine in diagnosis of CIN. Methods In this prospective,single center study,in-hospital patients with peripheral arterial diseases undergoing non-emergency endovascular therapy from July 2010 to April 2011 in our hospital were enrolled.CIN was defined asScr increase ≥25% after angiography.General clinical characteristics and blood biochemical parameters were compared between the non-CIN and CIN groups.Logistic regression analysis was performed to determine risk factors.Changes compared to baseline level in serum creatinine and Cys C at predefined time-points were evaluated.Results A total of 367 patients were enrolled in the study.The proportions of patients with diabetes mellims and treatment with diuretics before angiography,contrast-media dosage were significantly higher in the CIN group than those in non-CIN group (P<0.05,<0.01,<0.01).Logistic regression analysis indicated that diabetes mellitus,contrast-media dosage were risk factors for CIN.Several serum Cys C increase criteria at 24 hours after contrast media exposure all had low sensitivity for predicting a Scr increase ≥25%.Only small overlapped regions were found in Venn diagram between several increasing criteria according to serum Cys C and serum creatinine criterion. Conclusions Diabetes mellitus,contrast-media dosage are independent risk factors for CIN.The results of several increasing criteria according to serum Cys C in evaluating contrast-induced AKI are not coincident well with that of serum creatinine criterion.
7.Clinical research of acupuncture at stellate ganglion in the treatment of posterior circulation ischemia and its impacts on blood pressure.
Fan HUANG ; Zheng YUAN ; Hai-Tao YANG ; Ming TANG ; Zi-Ji LU ; Ting XIAO
Chinese Acupuncture & Moxibustion 2014;34(8):741-745
OBJECTIVETo compare the difference in the clinical efficacy on posterior circulation ischemia between acupuncture at stellate ganglion and conventional acupuncture as well as the impacts on blood pressure.
METHODSEighty cases of posterior circulation ischemia were randomized into an observation group (40 cases) and a control group (40 cases). In the observation group, acupuncture was applied to the bilateral stellate ganglions on the neck, stimulated with reinforcing technique by rotating the needles. In the control group, the acupuncture of reducing technique was applied to Fengchi (GB 20), Baihui (GV 20), Neiguan (PC 6) and Taichong (LR 3) in the excess syndrome. The even needling or reinforcing technique was applied to Fengchi (GB 20), Baihui (GV 20), Ganshu (BL 18), Shenshu (BL 23) and Zusanli (ST 36) for the deficiency syndrome. The treatment was given once every 3 days and 4 treatments were required totally in the two groups. The changes in total syndrome score, peak Systolic blood flow velocity (Vp) of vertebral artery and basilar artery, systolic and diastolic blood pressures were compared before and after treatment in the two groups. The clinical efficacy was compared between the two groups.
RESULTSThe total syndrome score was reduced apparently after treatment compared with that before treatment in the two groups (P < 0.01), and the reducing was more obvious in the observation group as compared with that in the control group (P < 0.01). The total effective rate was 87.5% (35/40) in the observation group, higher than 67.5% (27/40, P < 0.05) in the control group. After treatment, the reduced Vp of vertebral artery was not improved apparently as compared with that before treatment in the control group, Vp in blood velocity abnormality (including vascular spasm, stenosis or reduced velocity) of vertebral artery and basilar artery was all improved as compared with that before treatment in the two groups (P < 0.01), and the improvements in the observation group were more obvious than those in the control group (P < 0.01). After treatment, the systolic and diastolic pressures were reduced as compared with those before treatment in the two groups, and the reduced systolic and diastolic pressures in the observation group were more apparent than those in the control group (P < 0.01).
CONCLUSIONAcupuncture at stellate ganglion achieves the satisfactory efficacy in the treatment of posterior circulation ischemia and the significant efficacy of reducing blood pressure, more advanced than the conventional acupuncture.
Acupuncture Points ; Acupuncture Therapy ; Aged ; Blood Pressure ; Brain Infarction ; physiopathology ; therapy ; Female ; Humans ; Male ; Middle Aged ; Stellate Ganglion ; physiopathology ; Treatment Outcome
8.Strategies and key technologies for risk control and management in quality of Chinese medicine injections based on integrated pharmacology.
Xiao-ping ZHAO ; Li-yuan KANG ; Ren-mao TANG ; Zheng LI
China Journal of Chinese Materia Medica 2014;39(24):4689-4692
This paper focuses on the quality risk control and management of Chinese medicine (CM) injections. The most important technological requirements are analyzed, and a strategy for integrated pharmacology to study CM mechanism is proposed. A key technology system for quality risk control and management was further constructed. The strategy and technology system was finally applied to Shengmai injection for quality risk control and management.
Drugs, Chinese Herbal
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pharmacology
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standards
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Humans
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Injections
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Medicine, Chinese Traditional
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Quality Control
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Risk
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Technology
9.Determination of benzyl glucosinolate in Lepidium meyenii from different regions by HPLC.
Lin TANG ; Hong-jun YIN ; Cong-cong SI ; Xiao-yan HU ; Zheng-hai LONG
China Journal of Chinese Materia Medica 2015;40(23):4541-4544
The content of benzyl isothiocyanate (BITC) which as the enzymatic hydrolysis product of benzyl glucosinolate through thioglucosidase was determined by HPLC. The content of benzyl isothiocyanate (BITC) which as the enzymatic hydrolysis product of benzyl glucosinolate through thioglucosidase was determined by HPLC. The chromatography condition was as follows: Kaseisorb LC ODS 2000 (4.6 mm x 150 mm, 5 min) column with the mobile phase of acetonitrile(A)-water( B) under gradient elution (0-5 min, 3%-8% A; 5-9 min, 8%-48% A; 9-23 min, 48%-62% A; 23-28 min, 62%-99% A); the flow rate was 1.0 mL x min(-1) with 10 microL injection volume; detection wavelength was 246 nm and temperature of column was 40 degrees C. The content of benzyl glucosinolate was in the range of 10.76-17.91 g x L(-1). The method is simple, accurate and good reproducibility which can be used for the determination of benzyl glucosinolate in Lepidium meyenii, effectively.
Chromatography, High Pressure Liquid
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methods
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Glucosinolates
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analysis
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Lepidium
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chemistry
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Plant Extracts
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analysis
10.SAR of benzoyl sulfathiazole derivatives as PTP1B inhibitors.
Wen-Wen YIN ; Zheng CHEN ; Yan-Bo TANG ; Fei YE ; Jin-Ying TIAN ; Zhi-Yan XIAO
Acta Pharmaceutica Sinica 2014;49(5):632-638
Protein tyrosine phosphatase (PTP) 1B is a potential target for the treatment of diabetes and obesity. We have previously identified the benzoyl sulfathiazole derivative II as a non-competitive PTP1B inhibitor with in vivo insulin sensitizing effects. Preliminary SAR study on this compound series has been carried out herein, and thirteen new compounds have been designed and synthesized. Among them, compound 10 exhibited potent inhibition against human recombinant PTP1B with the IC50 value of 3.97 micromol x L(-1), and is comparable to that of compound II.
Humans
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Protein Tyrosine Phosphatase, Non-Receptor Type 1
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antagonists & inhibitors
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Structure-Activity Relationship
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Sulfathiazoles
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chemistry
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pharmacology