2.Advance on pharmacokinetics study of traditional Chinese medicine injections in recent ten years.
Yuan-Rong LIU ; Shu-Yu ZHAN ; Bo-Hong ZHENG ; Meng-Ting FANG ; Yi-Han FENG ; Jie ZHANG ; Ming-Juan LI ; Bao-Yue DING
China Journal of Chinese Materia Medica 2021;46(7):1752-1762
Traditional Chinese medicine(TCM) injections boast a definite efficacy and have been widely used in clinic. However, the problems in medication safety have been attracted increasing attention. Pharmacokinetics is of significance to guiding TCM injection administration regimen design and improving safety and effectiveness in clinical use. In recent years, with the improvement of ideas, technology and methods of TCM studies, the pharmacokinetic studies of TCM injections have been broadly performed, with a notable progress. This paper reviewed the advance in pharmacokinetics studies of TCM injections in recent ten years, which mainly focused on pre-clinical concentration-time course, distribution, metabolism and excretion in vivo based on analysis techniques, pharmacokinetic interactions of constitutes, impact of pathological state, pharmacokinetic interactions between TCM injection and chemical drugs, and clinical pharmacokinetics studies of TCM injections, in the expectation of providing reference for studies on quality control, product development and rational clinical use of TCM injections.
Drugs, Chinese Herbal
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Injections
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Medicine, Chinese Traditional
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Quality Control
3.Quantitative determination and optimun extraction technique of nine compounds of .
Yihan FENG ; Lei YIN ; Yuanrong LIU ; Lujing CAO ; Ning ZHENG ; Mingjuan LI ; Shuyu ZHAN
Journal of Zhejiang University. Medical sciences 2020;49(3):356-363
OBJECTIVE:
To establish the optimum extraction technique and high performance liquid chromatographic (HPLC) method to simultaneously quantify nine compounds of gallic acid, hydroxy-paeoniflorin, catechin, albiflorin, paeoniflorin, pentagalloylglucose, benzoic acid, benzoylpaeoniflorin and paeonol in .
METHODS:
Linear gradient elution was applied using water containing 0.1%phosphoric acid and acetonitrile as the mobile phase with a flow rate of 0.8 mL/min, column temperature of 30℃ and wavelength of 230 nm. The method of ultrasound extraction was used. Methanol and ethanol were used as extraction solvents, and three factors and three levels of orthogonal experiments was designed using L (3 ) table to investigate the effects of solvent concentration, ratio of liquid to material and extraction time on the total content of nine components of .
RESULTS:
HPLC method was verified to have high specificity, sensitivity and accuracy through methodological validation, and it could be used for simultaneous quantitative analysis of nine components of . The results showed that the optimum extraction technology of nine components of was using 70%ethanol as extraction solvent, ratio of liquid to material was 200 mL/g and ultrasound extraction time was 30 min.
CONCLUSIONS
HPLC method for the simultaneous determination of nine components of is established, and the optimum extraction technology is confirmed.
Chromatography, High Pressure Liquid
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Drugs, Chinese Herbal
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Paeonia
4.Diagnostic value of hs-CRP and PCT combined with IL-6 in children with severe hand-foot-mouth disease
Lijun LUO ; Chenggao XU ; Fei SUN ; Xiaohui GAO ; Shunfeng MAO ; Xiaoping LU ; Junjie FENG
China Modern Doctor 2024;62(5):16-19
Objective To investigate the diagnostic value and clinical significance of hypersensitive C-reactive protein(hs-CRP),procalcitonin(PCT)combined with interleukin-6(IL-6)in children with severe hand-foot-mouth disease.Methods A total of 62 children hospitalized in our hospital from January 2022 to December 2022 were collected as research objects.According to the severity of infection,they were divided into observation group(severe infection group)with 29 cases and control group(mild infection group)with 33 cases.The differences of general data,total leukocyte count,neutrophil count,lymphocyte count,platelet count,hs-CRP,PCT,IL-6 and creatine kinase isoenzyme(CK-MB)between the two groups and their clinical applications were analyzed and compared.Results The total white blood cell count,neutrophil count,lymphocyte count,hs-CRP,PCT and IL-6 in the observation group were higher than those in the control group,and the difference has statistically significant.Receiver operator characteristic(ROC)curve analysis of hs-CRP predicted the sensitivity and specificity of severe infection of hand-foot-mouth disease were 79.3%and 93.9%(95%CI:0.852-10.985,P<0.05);The sensitivity and specificity of PCT were 93.1%and 84.8%(95%CI:0.907-1,P<0.05);The sensitivity and specificity of IL-6 were 96.6%and 87.9%(95%CI:0.945-1,P<0.05).Conclusions In hand-foot-mouth classification,PCT and IL-6 are highly sensitive.Although hs-CRP is less sensitive than the former,its specificity is higher than the former.Therefore,the combination of hs-CRP,PCT and IL-6 has higher value for hand-foot-mouth classification.
5.Establishment of Automation System for Detection of Alcohol in Blood.
Lin Lin TIAN ; Lei SHEN ; Jin Feng XUE ; Ming Ming LIU ; Li Jun LIANG
Journal of Forensic Medicine 2017;33(1):25-27
OBJECTIVES:
To establish an automation system for detection of alcohol content in blood.
METHODS:
The determination was performed by automated workstation of extraction-headspace gas chromatography (HS-GC). The blood collection with negative pressure, sealing time of headspace bottle and sample needle were checked and optimized in the abstraction of automation system. The automatic sampling was compared with the manual sampling.
RESULTS:
The quantitative data obtained by the automated workstation of extraction-HS-GC for alcohol was stable. The relative differences of two parallel samples were less than 5%. The automated extraction was superior to the manual extraction. A good linear relationship was obtained at the alcohol concentration range of 0.1-3.0 mg/mL (r≥0.999) with good repeatability.
CONCLUSIONS
The method is simple and quick, with more standard experiment process and accurate experimental data. It eliminates the error from the experimenter and has good repeatability, which can be applied to the qualitative and quantitative detections of alcohol in blood.
Automation
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Chromatography, Gas/methods*
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Ethanol/blood*
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Gas Chromatography-Mass Spectrometry/methods*
6.Exploration of acupoint combination and needling techniques in the reinforcing and reducing manipulation at different acupoints.
Qing DAI ; Xiesun SHENG ; Feng CHEN
Chinese Acupuncture & Moxibustion 2017;37(4):391-393
The reinforcing and reducing manipulation at different acupoints is a kind of acupuncture manipulations and has satisfactory clinical therapeutic effects, combined with a proper needling techniques. The reinforcing needling method is used in the upper and the reducing one in the lower, the distal acupoints are combined with the nearby acupoints. The local acupoints or adjcant acupoints of the affected area are regarded as the nearby acupoints, e.g. the acupoints in the upper. The distant acupoints and the acupoints on the hand and foot are named as distal acupoints, e.g. the acupoint in the lower. In the reinforcing manipulation, the needle is inserted shallowly along the running direction of meridian. In the reducing manipulation, the needle is inserted deeply and against the running direction of meridian. The-couple needling technique is used with the combination of the front-and back-points. In the first option, the reinforcing and reducing needling method with rotating technique is predominated at the front-points, while that with lifting and thrusting technique is at the back-points. In the second option, when needling the back-points, the needling sensation is transmitted along the transverse segment and far to the chest and abdomen. These two kinds of integration of acupoint combination and needling techniques display a certain clinical significance in improving the therapeutic effects of acupuncture.
7.Treatment of stage Ⅱ-Ⅲ Kümmell disease with robot-assisted bone cement-augmented pedicle screw fixation.
Jian-Qiao ZHANG ; Xiao ZHOU ; Hui-Gen LU ; Bao CHEN ; Ye-Feng YU ; Xu-Qi HU ; Min-Jie HU ; Xue-Kang PAN
China Journal of Orthopaedics and Traumatology 2023;36(5):465-472
OBJECTIVE:
To evaluate the early clinical efficacy of robot-assisted percutaneous short-segment bone cement-augmented pedicle screw fixation in the treatment of stageⅡ-Ⅲ Kümmell disease.
METHODS:
The clinical data of 20 patients with stageⅡ-Ⅲ Kümmell's disease who underwent robot-assisted percutaneous bone cement-augmented pedicle screw fixation between June 2017 and January 2021 were retrospectively analyzed. There were 4 males and 16 females, aged from 60 to 81 years old with an average age of (69.1±8.3) years. There were 9 cases of stageⅡand 11 cases of stage Ⅲ, all of which were single vertebral lesions, including 3 cases of T11, 5 cases of T12, 8 cases of L1, 3 cases of L2, and 1 case of L3. These patients did not exhibit symptoms of spinal cord injury. The operation time, intraoperative blood loss, and complications were recorded. The position of pedicle screws and the filling and leakage of bone cement in gaps were observed using postoperative CT 2D reconstruction. The data of the visual analogue scale (VAS), Oswestry disability index (ODI), kyphosis Cobb angle, wedge angle of the diseased vertebra, and anterior and posterior vertebral height on lateral radiographs were statistically analyzed preoperatively, 1 week postoperatively, and at the final follow-up.
RESULTS:
Twenty patients were followed up for 10 to 26 months, with an average follow-up of (16.0±5.1) months. All operations were successfully completed. The surgical duration ranged from 98 to 160 minutes, with an average of (122±24) minutes. The intraoperative blood loss ranged from 25 to 95 ml, with an average of (45±20) ml. There were no intraoperative vascular nerve injuries. A total of 120 screws were inserted in this group, including 111 screws at grade A and 9 screws at grade B according to the Gertzbein and Robbins scales. Postoperative CT indicated that the bone cement was well-filled in the diseased vertebra, and cement leakage occurred in 4 cases. Preoperative VAS and ODI were (6.05±0.18) points and (71.10±5.37)%, respectively, (2.05±0.14) points and (18.57±2.77)% at 1 week after operation, and (1.35±0.11) points and (15.71±2.12) % at final follow-up. There were significant differences between postoperative 1 week and preoperative, and between final follow-up and postoperative 1 week(P<0.01). Anterior and posterior vertebral height, kyphosis Cobb angle, and wedge angle of the diseased vertebra were(45.07±1.06)%, (82.02±2.11)%, (19.49±0.77) °, and (17.56±0.94) ° preoperatively, respectively, (77.00±0.99)%, (83.04±2.02)%, (7.34±0.56) °, and (6.15±0.52) ° at 1 week postoperatively, and (75.13±0.86)%, (82.39±0.45)%, (8.38±0.63) °, and (7.09±0.59) ° at the final follow-up.
CONCLUSION
Robot-assisted percutaneous short-segment bone cement-augmented pedicle screw fixation demonstrates satisfactory short-term efficacy in treating stageⅡ-Ⅲ Kümmell's disease as an effective minimally invasive alternative. However, longer operation times and strict patient selection criteria are necessary, and long-term follow-up is required to determine its lasting effectiveness.
Male
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Female
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Humans
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Middle Aged
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Aged
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Aged, 80 and over
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Pedicle Screws
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Bone Cements
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Robotics
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Blood Loss, Surgical
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Retrospective Studies
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Spinal Fractures/surgery*
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Lumbar Vertebrae/injuries*
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Treatment Outcome
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Kyphosis
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Thoracic Vertebrae/injuries*
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Fracture Fixation, Internal
8.SHENG Xie-sun's experiences in application of the four important points of the Governor Vessel.
Chinese Acupuncture & Moxibustion 2006;26(1):45-47
SHENG Xie-sun has unique experiences in location and needling methods of Baihui (GV 20), Dazhui (GV 14), Lingtai (GV 10) and Mingmen (GV 4) on the Governor Vessel. He holds that these are four important points on the Governor Vessel. Especially, he has own unique method in location of Baihui (GV 20) and Dazhui (GV 14). After correct location of Baihui (GV 20), the various points on all sides can be located according to the different distance; for location of Dazhui (GV 14), firstly Jugu (LI 16) on the bilateral shoulders are located accurately, and then Dazhui (GV 14) is located below the spinous process on the horizontal line between the two points. Point-through-point needling method and needle tip qi-inducing method are used. And he is good at application of moxibustion for treatment of difficult and complicated diseases and visceral diseases, and attains obvious clinical therapeutic effect.
Acupuncture Points
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Acupuncture Therapy
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Humans
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Meridians
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Moxibustion
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Needles
9.Effects of different surface roughness prior to overglazing on final surface texture of glazed ceramic
Qiaoying LAN ; Jiaxing YANG ; Yi YUAN ; Feng TAN
Chinese Journal of Medical Aesthetics and Cosmetology 2011;17(3):200-203
Objective To evaluate the influence of different surface roughness on final surface texture of glazed ceramic. Methods Sixty porcelain discs were fabricated and randomly divided into five groups (n=12), which were sequentially grounded with water-cooled sandpapers of decreasing abrasiveness (220# , 400# , 600# , 800# and 1200# grit), and then all the specimens were glazed. Before and after glazing, the surface roughness (Ra) μm of the same specimens were evaluated quantitatively with profilometer and qualitatively using scanning electron microscopy (SEM). Results The smoothest surfaces were obtained with 1 200# sandpapers griting prior to overglazing (Ra =0. 19 μm),and 220# sandpapers griting prior to overglazing displayed the roughest surfaces (Ra =0. 55 μm) ; each group displayed significant difference before and after glazing (P < 0. 05). The images obtained through SEM were consistent with the profilometer readings. Conclusions The results suggest that decreasing the surface roughness of dental ceramic prior to glazing is of great importance in order to obtain the smoothest surface after glazing.
10.Virtual Screening ofα-glycosidase Inhibitors in Cortex mori and Folium mori
Xiaodi SONG ; Xifeng ZHAI ; Jiaxing FENG ; Huiting JIANG ; Peijie MA
China Pharmacy 2017;28(4):508-511
OBJECTIVE:To virtually screen potential α-glycosidase inhibitor ingredients from C. mori and F. mori,and to pro-vide reference for finding out new typeα-glycosidase inhibitor ingredient. METHODS:Surflex-Dock module of Sybyl-x 2.0 molecu-lar simulation software was used to perform the docking of small molecule compound,which was from the ingredients of C. mori and F. mori as ligand stated in literatures,with α-glycosidase. Total score of affinity scoring function was equal to 7 as the thresh-old value,to judge potential α-glycosidase inhibitor ingredient in C. mori and F. mori. RESULTS:After 70 small molecule com-pounds docked with α-glycosidase, 10 compounds showed binding activity (Total score≥7.00). Among them, moracin M-3′-O-β-D-glucopyranoside,5,7,2′-trihydroxyflavanone-4′-O-β-D-glucoside,mulberroside A,resveratrol-4,3′-di-O-β-D-gluco-pyranoside and 1,4-dideoxy-1,4-imino-(2-O-β-D-glucopyranosyl)-D-arabinitol had higher binding activity with α-glycosidase(Total score>8.00). CONCLUSIONS:Multi-constituents of C. mori and F. Mori show potential α-glycosidase inhibitory activity. The method is a kind of highly targeted,rapid and efficient approach to discover α-glycosidase inhibitor from traditional Chinese medi-cine.