1.Total quantity statistical moment analysis on pharmacokinetics of rhein and chrysophanol after oral administration of Quyu Qingre granules in normal and acute blood stasis rabbits.
China Journal of Chinese Materia Medica 2014;39(3):520-525
This study aim to reveal the total pharmacokinetics of rhein and chrysophanol after oral administration of Quyu Qingre granules (QUQRG) in normal and acute blood stasis rabbits, to identify the pharmacokinetics differences between two groups of rabbits and to evaluate the applicability of the total statistical moment analysis. Based on the concentrations of rhein and chrysophanol in plasma determined by an established HPLC method, and the calculation of main total pharmacokinetic parameters, this study found that total pharmacokinetic parameters VRT, value of blood stasis group is lager than that of normal group and the difference is significant Compared with normal group, total pharmacokinetic parameters AUC,, MRT,, t1/2t, and Vt value of blood stasis group is lager, while the k, and CL, value is smaller. The findings indicated that the absorbed and released time of rhein and chrysophanol was accelerated and the total absorptive amount of these two compounds was increased in rabbits with acute blood stasis, compared with the normal rabbits. Total quantity statistical moment analysis can combine the pharmacokinetics of rhein and chrysophanol and express the pharmacokinetic behavior of these two compounds in QUQRG. The parameters in this paper can provide reference frames for the follow-up development of QUQRG.
Administration, Oral
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Animals
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Anthraquinones
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pharmacokinetics
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pharmacology
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Blood Circulation
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drug effects
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Drugs, Chinese Herbal
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administration & dosage
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pharmacology
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Medicine, Chinese Traditional
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methods
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Rabbits
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Statistics as Topic
2.Effect of the regulation of adiponectin on the expression of nitric oxide synthase in the retinas of diabetic rats
Yan, DAI ; Xiao-li, WANG ; Xiao-hu, CHEN ; Bo, HU
Chinese Journal of Experimental Ophthalmology 2012;(12):1086-1089
Background Diabetic retinopathy (DR) is a common complication of diabetic mellitus,but its pathogenesis is still unclear.Adiponectin may restrain inflammatory reaction and reduce adhesion of vascular endothelial cell to influence diabetic microangiopathy.Relation between adiponectin and nitric oxide synthase (NOS)is less reported.Objective This study was to observe the effect of adiponectin on the expression of NOS in the retinas of diabetic rats.Methods Forty 8-10 weeks Sprague-Dawley (SD) female rats were collected.The rats were randomized into the normal control group (10 rats),adiponectin group (15 rats) and diabetic model control group (15 rats) using the random number table method.Tetraoxypyrimidine was intraperitoneally injected to establish the diabetic model in the rats of the adiponectin group and diabetic model control group,and 10 μg/kg of adiponectin was then injected into the rats of the adiponectin group.Western blot was used to detect the expression of the adiponectin protein in the rat retinas,and the expression of NOS in rat retina was located by immunochemistry.The use of the animals complied with the Regulations for the Administration of Affairs Concerning Experimental Animals by State Science and Technology Commission.Results The relative amount of adiponectin (adiponectin/β-actin)in the retinas was 0.85 ± 0.21,0.79 ± 0.17 and 0.42 ± 0.08,respectively,in the normal control group,adiponectin group and diabetic model control group,with significant differences among the 3 groups (F =4.236,P =0.000).The adiponectin/β-actin ratio in the retinas of the diabetic model control group was significantly declined in comparison with the normal control group and adiponectin group (q =6.615,P =0.000 ; q =6.026,P =0.000).The NOS levels (A value) in the retinas were 0.244 ± 0.035,0.262 ± 0.032 and 0.367 ± 0.066,respectively,in the normal control group,adiponectin group and diabetic model control group,showing a significant difference among them (F =3.752,P =0.001).The A value of NOS in the diabetic model control group was significantly increased in comparison with the normal control group and adiponectin group (q =3.488,P =0.002 ; q =3.079,P =0.005).NOS expression was localized to the inner nuclear layer and retinal ganglion cell layer.Conclusions Adiponectin reduces NO content in diabetic rat retinas by regulating NOS expression.
3.Application of Element and Metabolism Balancing in the Production Phase of Human-like Collagen
Yan-E LUO ; Dai-Di FAN ; Xiao-Xuan MA ;
China Biotechnology 2006;0(11):-
On the base of element and metabolism balancing,the mathematic model of the human-like collagen expression phase with recombinant Escherichia coli BL21 was developed and the unknown parameters in the model were estimated with the method of nonlinear optimization.The model was in agreement with the growth kinetics and the metabolic kinetics,and the key calculated parameters of ?h,?p and mx were 1.173 mol?C-mol-1,293.814 mol?C-mol-1 and 17.878 mol?C-mol-1?h-1 respectively.This model could preferably predict the macroscopic reaction rates,and in the synthesis phase of human-like collagen,the specific growth rate should be controlled at 0.04 h-1 with controlling glucose feeding rate to gain the highest specific production rate of human-like collagen.
4.Clinical Observation of Warm Acupuncture at Biguan (ST 31 ) in Treating Post-apoplectic Restless Legs Syndrome
Xiaoyu DAI ; Yan LI ; Qiuzhen SONG ; Baojie HAN ; Yuanchun XIAO
Journal of Acupuncture and Tuina Science 2006;4(3):174-175
Objective:To investigate the efficacy of warm acupuncture at Biguan(ST 31) in treating post-apoplectic restless legs syndrome. Methods:Fifty patients were randomly divided into treatment and control groups by a waiting control method in order of hospitalization. The treatment group received deep acupuncture at point Biguan(ST 31) plus moxibustion and the control group took L-dopa orally. The curative effects were compared after 28 days' treatment. Results: The total efficacy rate was 76.00% in the treatment group and 26.00% in the control group. There was a significant difference. Conclusion:Warm acupuncture at Biguan(ST 31) is effective in treating post-apoplectic restless legs syndrome.
5.Determination of γ-aminobutyric acid in human plasma by LC-MS/MS and its preliminary application to a human pharmacokinetic study.
Yao CHEN ; Xiao-Jian DAI ; Jiang-Bo DU ; Kan ZHONG ; Xiao-Yan CHEN ; Da-Fang ZHONG
Acta Pharmaceutica Sinica 2014;49(11):1593-1599
A rapid, sensitive and convenient LC-MS/MS method was developed for the determination of γ-aminobutyric acid (GABA) in human plasma. d2-γ-Aminobutyric acid (d2-GABA) was synthesized as internal standard (IS). After extraction from human plasma by protein precipitation with acetonitrile, all analytes were separated on a Luna HILIC column (100 mm x 3.0 mm, 3 μm) using an isocratic mobile phase of water: acetonitrile: formic acid (20 : 80 : 0.12) with a flow rate of 0.5 mL x min(-1). Acquisition of mass spectrometric data was performed in multiple reaction monitoring mode (MRM) in positive electrospray ionization using the transitions of m/z 104 --> 69 for GABA and m/z 106 --> 71 for d2-GABA. The method was linear in the concentration range of 5.00 to 1 000 ng x mL(-1). The intra- and inter-day precisions were within 9.9%, and accuracy ranged from 99.1% to 104%, within the acceptable limit across all concentrations. The method was successfully applied to a pharmacokinetic study of GABA tablets in healthy Chinese volunteers.
Chromatography, Liquid
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Humans
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Tandem Mass Spectrometry
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gamma-Aminobutyric Acid
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blood
6.Clinical study on mild moxibustion for knee osteoarthritis
Ming DAI ; Xiao-Yan FANG ; Hui-Yi CHEN ; Yan-Hong WANG ; Yi-Wen WU
Journal of Acupuncture and Tuina Science 2019;17(1):62-66
Objective:To observe the clinical effect of mild moxibustion for knee osteoarthritis (KOA) and to explore the role of mild moxibustion in relieving pain,reducing stiffness and improving joint dysfunction in patients with KOA.Methods:Eighty patients with KOA were randomly allocated into either a moxibustion group or a medication group by the random number table,with 40 cases in each group.The moxibustion group used mild moxibustion at Neixiyan (EX-LE 5),Dubi (ST 35),Xuehai (SP 10) and Liangqiu (ST 34),30 min each time,3 times a week;the medication group was given celecoxib capsule (celebrex),0.2 g each time,once a day.Both groups were treated for 4 weeks.The visual analog scale (VAS) and Western Ontario and McMaster Universities osteoarthritis index (WOMAC)scores were evaluated before and after treatment.The efficacy of the two groups was compared after treatment.Results:After treatment,the overall efficacy of the moxibustion group was significantly different from that of the medication group (P<0.05).The VAS and WOMAC scores of the two groups were lower than those before treatment (both P<0.01).The changes in the VAS and WOMAC scores after treatment in the moxibustion group were significantly different from those in the medication group (both P<0.05).After treatment,in single item of WOMAC,the changes in pain and joint dysfunction in the moxibustion group were more statistically significant than those in the medication group (both P<0.05).Conclusion:Mild moxibustion and oral celebrex can reduce the VAS and WOMAC scores of patients with KOA.Mild moxibustion is superior to oral celebrex in relieving pain and improving joint function.
7.Review: plant polyphenols modulate lipid metabolism and related molecular mechanism.
Yan-li DAI ; Yu-xiao ZOU ; Fan LIU ; Hong-zhi LI
China Journal of Chinese Materia Medica 2015;40(21):4136-4141
Lipid metabolism disorder is an important risk factor to obesity, hyperlipidemia and type 2 diabetes as well as other chronic metabolic disease. It is also a key target in preventing metabolic syndrome, chronic disease prevention. Plant polyphenol plays an important role in maintaining or improving lipid profile in a variety of ways. including regulating cholesterol absorption, inhibiting synthesis and secretion of triglyceride, and lowering plasma low density lipoprotein oxidation, etc. The purpose of this article is to review the lipid regulation effects of plant polyphenols and its related mechanisms.
Animals
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Humans
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Lipid Metabolism
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drug effects
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Metabolic Diseases
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drug therapy
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metabolism
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Polyphenols
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pharmacology
8.Treatment of thoracolumbar spinal tuberculosis with single posterior debridement, bone grafting, internal fixation and local chemotherapy.
Ying-Qi YAN ; Man-Li XIA ; Jia-Ping DAI ; Sui-Liang GONG ; Gang CHEN ; Xiao ZHOU
China Journal of Orthopaedics and Traumatology 2015;28(4):323-326
OBJECTIVETo evaluate the clinical effects of single posterior debridement, bone grafting, internal fixation and local chemotherapy in treating thoracolumbar spinal tuberculosis.
METHODSFrom February 2009 to September 2012,11 patients with thoracolumbar spinal tuberculosis were treated by single posterior debridement, bone grafting, internal fixation and local chemotherapy. There were 7 males and 4 females, aged from 27 to 65 years old with an average of 53.7 years. The courses of disease was from 3 months to 2 years with the mean of 9 months. According to ASIA standard of spinal cord injury, 3 cases were grade C and 8 cases D. After treatment, clinical effects were evaluated by ASIA grade, visual analogue score (VAS) and Oswestry Disability Index (ODI); kyphosis Cobb angle change was observed by X-rays.
RESULTSEleven patients were followed up from 12 to 29 months with an average of 18 months. ASIA grade of spinal cord injury, 3 patients with grade C improved to grade D in 2 cases and grade E in 1 case 8 patients with grade D improved to grade E in 7 cases and unchanged in 1 case. VAS decreased from preoperative 6.10 ± 1.30 to 1.70 ± 0.80 at 3 d after operation (P < 0.05). ODI improved from preoperative (68.36 ± 10.41)% to (14.55 ± 8.99)% (P < 0.05) at 3 d after operation. Kyphotic Cobb angle was corrected from preoperative (22.64 ± 4.84)° to (4.27 ± 1.49)° (P < 0.05) on the 3rd day after operation, and angle loss was mild at final follow-up, there was no significant difference between postoperative at 3 d and final follow-up.
CONCLUSIONSingle posterior debridement, bone grafting, internal fixation and local chemotherapy for the treatment of thoracolumbar spinal tuberculosis can effectively remove the lesion, improve nerve function and correct deformity, has advantage of single incision, little trauma, and low recurrence rate. But it still need long-term and systemic treatment with anti-TB drugs.
Adult ; Aged ; Bone Transplantation ; Debridement ; Female ; Humans ; Internal Fixators ; Lumbar Vertebrae ; surgery ; Male ; Middle Aged ; Retrospective Studies ; Thoracic Vertebrae ; surgery ; Tuberculosis, Spinal ; therapy
9.Value of urinary retinal binding protein in early renal function impairment for patients with pneumoconiosis complicated with chronic obstructive pulmonary diseases.
Jun-he DAI ; Si-hai LIU ; Xiao-jing LIU ; Li-da YAN ; Wen-shou XU
Chinese Journal of Industrial Hygiene and Occupational Diseases 2006;24(2):123-124
10.Relationship between pain symptoms and clinico-pathological features of pelvic endometriosis
Jin-Hua LENG ; Jing-He LANG ; Yi DAI ; Hua-Jun LI ; Xiao-Yan LI ;
Chinese Journal of Obstetrics and Gynecology 2001;0(03):-
Objective To study the relationship between pain symptoms and the clinico-pathological features of pelvic endometriosis (EM).Methods One hundred thirty patients with laparoseopic diagnosis of EM were studied retrospectively and the relationship between pain symptoms including dysmenorrhea, chronic pelvic pain(CPP),dyspareunia and dysehezia and the anatomical features of pelvic endometriosis were evaluated.Results One hundred (76.9%)patients with pain symptoms and 30 (23.1%)without were included in this study.The number of patients with mild,moderate and severe dysmenorrhoea was 27 (20.8%),41(31.5%),and 32 (24.6%),respectively.Patients with dyspareunia,CPP and dyschezia were 46(35.4%),45(34.6%) and 67(51.5%),respectively.Compared with patients without dysmenorrhea,the proportion of deep utero-sacral nodules (45.0% vs 13.3%,P=0.00),recto-vaginal nodules (16.0% vs 0,P=0.01),complete obliteration of eul-de sac (41.0% vs 10.0%,P=0.00),and lesions of DIE (51.0% vs 16.7%,P=0.00) was significantly increased in patients with dysmenorrhea. The severity of dysmenorrhea was positively correlated with nodules in uterosacral ligaments (P=0.005,r= 0.302),and invasive depth of uterosacral ligaments (P=0.016,OR=5.085).Among patients with endometrioma,significantly more moderate to severe adhesions were found in patients with dysmenorrhea , compared with those patients without dysmenorrhea(29.1% vs 8.3%,P=0.029).Patients with CPP had more nodules in the utero-sacral ligaments(51.1% vs 30.6%,P=0.018)and DIE lesions(57.8% vs 35.3%,P=0.011),compared with those without.More nodules in the utero-saeral ligaments(46,3% vs 28.6%,P=0.028),recto-vaginal nodules(19.4% vs 4.8%,P=0.01),complete obliteration of cul-de sac(44.8% vs 22.2%,P=0.005)and DIE lesions(53.7% vs 31.7%,P=0.01)were found in patients with dyschezia,compared with those without.Nodules in the recto-vaginal pouch were an independent risk factor of dyspareunia.Conclusion Pain symptoms including dysmenorrhea,dyspareunia, chronic pelvic pain,and dysehezia are remarkedly related to endometriotic nodules at the posterior part of the pelvis or those with deep invasions.