1.Establishment of characteristic chromatogram and determination of three constituents for modified Huoxiang Zhengqi pills
Yichang ZHANG ; Xiaolei FAN ; Defang SONG
China Pharmacist 2024;27(7):1115-1124
Objective To establish the characteristic chromatogram for modified Huoxiang Zhengqi pills and determine the content of three components based on HPLC.Methods The analysis of methanol extract of this preparation was performed on a Agilent TC-C18 column(250 mm×4.6 mm,5 μm)at 30℃,with mobile phase comprising of acetonitrile-0.1%phosphoric acid flowing at 1.0 mL/min in a gradient elution manner,and the detection wavelength was set at 254 nm and 284 nm.Results Three components(hesperidin,magnolol and honokiol)showed good linearity within the range of 2.715-434.400 μg/mL,2.760-176.600 μg/mL and 2.623-167.900 μg/mL(r=1.000 0),whose average recoveries were 99.2%,96.3%and 95.9%,with the RSD of 1.5%,1.3%and 1.8%(n=9),respectively.The established characteristic chromatogram controlled the 7 main Chinese medicinal herbs in the formulation,which provided a basis for evaluating the quality of raw materials,feedings,processes and preparations of different enterprises as a whole.Conclusion This method is accurate,reliable and has good repeatability,and can be used for the quality control of modified Huoxiang Zhengqi pills.
2.Study on Classification Methods for Adjuvant Drugs
Li WANG ; Defang CAI ; Yong CHEN ; Qin HE ; Song ZHANG ; Yuan HOU ; Yue MA
China Pharmacist 2015;18(12):2156-2159
Objective:To define the range and classification of adjuvant drugs. Methods:In order to explore the definition meth-od for the range and classification of adjuvant drugs, the information of definition and classification of adjuvant drugs was obtained by searching PubMed, CNKI, Wanfang database and medicine monographs such as Clinical Medication Notice, New Pharmacology and Martindale:The Complete Drug Reference. Results:The preliminary conclusion on definition, range and classification method for ad-juvant drugs was achieved. Adjuvant drugs were classified into ten categories, so that the adjuvant drugs in our hospital were super-vised. Conclusion:In order to promote the standardized management of clinical application of adjuvant drugs, the range and classifica-tion of adjuvant drugs still need further discussion and standardization.
3.Changes of serum osteoprotegerin and bone mineral density in diabetic nephropathy patients
Defang HUANG ; Gaoxiang CHEN ; Song ZHANG ; Fang ZHANG ; Hong CAO
Chinese Journal of Tissue Engineering Research 2010;14(2):351-354
BACKGROUND: At present, the relationship between diabetic nephropathy and osteoprotagerin remains poorly understood. OBJECTIVE: To investigate the correlation between bone mineral density (BMD) and serum osteoprotagerin changes in patients with 2 type diabetic nephropathy. METHODS: Totally 104 patients with 2 type diabetes were divided following 5 groups according to glomerular filtration rate: simple diabetes, mild renal injury, moderate renal injury, severe renal injury, and renal failure groups. Additional 20 healthy people were selected as the control group. The level of serum osteoprotegerin was measured by ELISA. Meantime, levels of serum calcium, phosphonium, alkaline phosphatase, creatinine, urea nitrogen, and glycosylatad hemoglobin were measured by. the automatic biochemistry analyzer. The bone mineral density of entopic L_(2-4) was determined by dual X-ray bone density equipment. The whole data was analyzed by multiple regression correlation analysis. RESULTS AND CONCLUSION: The level of serum osteoprotegerin in patients with diabetic nephropathy was obviously greater than that of the healthy people (P < 0.05), but BMD of the mild renal injury, moderate renal injury, severe renal injury, and renal failure groups was obviously lower than that of the healthy people (P < 0.05). Generally, the worse renal function accompanied by higher osteoprotegerin level, and lower BMD. There was a negative correlation between ostaoprotegerin level and BMD in patients with diabetic nephropathy (r=-0.497, P < 0.01). However, the relationships between osteoprotegedn level and diabetic duration (r=0.566, P < 0.01), serum creatinine level (r=0.772, P < 0.01), serum urea nitrogen level (r=0.708, P < 0.01), serum phosphonium level (r=0.329, P < 0.01), or serum intact parathyroid hormone level (F=0.702, P < 0.01) were positive. Meantime, the serum phosphonium level had negative correlation to serum calcium level (r=-0.505, P < 0.01). it demonstrated that when the renal function got worse in diabetic nephropathy patients, the serum osteoprotegerin level was increasing accompanied by BMD decreasing. The osteoprotegerin level presents a negative correlation to BMD and serum calcium level, but positive to diabetic duration, serum creatinine, serum urea nitrogen, serum phosphonium and serum intact parathyroid hormone levels.

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