1.Research Progress on Pancreas Regeneration Gene Reg3
Ying QIAN ; Qianqian XU ; Ming XIANG
Herald of Medicine 2017;36(7):719-726
Objective Regenerating genes express mainly in gastrointestinal tissues and the injured regenerating pancreatic tissues,which can promote the regeneration of pancreatic β cells and other tissue cells.In recent years,researches on Reg family mainly involved the gene structure of various subtypes of Reg,and its role in diabetes,gastrointestinal cancer,inflammation,anti-microbial and the related mechanisms.Among the various subtypes of Reg,regenerating geneⅢ(Reg3) plays a particularly crucial role in these diseases.Therefore,Reg3 is a promising target for the treatment of these diseases.Based on the relationships of Reg3 with a variety of diseases,our group devote to the role of Reg3 [human REG3A,and mouse Reg3γ(Reg3g)] in type 1 diabetes,inflammation-linked pancreatic carcinogenesis,and the immunological changes participated in these processes.Hence,this review will summarize serial studies on Reg3 and the feasibility of it as drug targets.
2.Effect of compound anisodine on fundus bIood circuIation after vitrectomy with face-down posture
Xiang-Zhong, XU ; Jing, QIAN ; Ying-Nan, XU ; Jin, YAO
International Eye Science 2015;(3):543-545
· AlM:To investigate the effect of compound anisodine on fundus blood circulation after vitrectomy with face-down position.
· METHODS: Sixty patients ( 60 eyes ) with rhegmatogenous retinal detachment received vitrectomy with silicone oil tamponade operation, who were randomized divided into treatment group ( 30 eyes ) and control group ( 30 eyes ) .The patients in the treatment group received the subcutaneously injection of compound anisodine hydrobromide by the superficial temporal artery once daily for 14d since postoperative first day.Retinal microcirculation blood flow parameters were recorded with Heidelberg retinal flowmeter postoperative 1d, 1 and 2wk, and were compared between two groups.
·RESULTS: The blood flow parameters ( Vol, Flw, Vel) of control group postoperative 1 and 2wk were significantly less than those postoperative 1d.Otherwise the parameters of treatment postoperative 1 and 2wk were significantly more than those postoperative 1d. The parameters between two groups were significant different ( P<0.01) .
· CONCLUSlON: Facing down after vitrectomy with
silicone oil tamponade may reduce retinal blood supply, consequently lead to retinal ischemia; compound anisodine can effectively improve the retinal and choroidal microcirculation after vitrectomy with face-down posture, reduce retinal ischemia, and enhance the visual function.
3.Diagnosis and treatment of 43 cases of children with congenital chole dochal cyst
ying-tian, TAO ; xiang-ling, MENG ; a-man, XU
Journal of Applied Clinical Pediatrics 1993;0(03):-
Objective To study the diagnosis and treatment of ch ildren with congenital choledochal cyst (CCC).Methods From Janu ary 1998 to January 2003, data from 43 cases children with CCC were used for thi s study. Their parameters included sex, age, diagnosis , types of CCC, time of surgery and style of surgery were retrospectively analyzed. Results The incidence of patients whose age under 2 years old was 72 %.The ratio o f gender (male:female) was 1:3. The children were examined by B-ultrasonic(B-u s),computed tomography(CT), and MRCP with the accuracy of 83.7 %, 78.9 % and 80. 0 % respectively.Forty cases underwent biliary reconstruction, cystectomy and Ro ux-en -Y bilioenteric anastomosis. There was no mortality, pre or postoperative compli cation. Conclusion B-us examination is the best method to diag nose the disease.Cystectomy and biliary reconstruction are effect to treat this disease.
4.Biomechanical testing and evaluation of a self-made allograft interbody fusion cage at lumbar spine
Zimin XIANG ; Dajun YING ; Xuehui WU ; Jianzhong XU ; Weijun CHEN
Journal of Third Military Medical University 2002;0(12):-
Objective To evaluate the stability and compressive mechanical functions of the lumbar spine following insertion of a new self-made allograft interbody fusion cage.Methods Anti-bending intensity with three points test,anti-rotation intensity and compressive stiffness were measured at L4-L5 lumbar spine on five adult human fresh cadaveric specimens following insertion of a new self-made allograft interbody fusion cage and compared with that of before and after nucleus pulposus removal.Results The anti-bending intensity of flexion and extension of lumbar spine after inserting a new allograft interbody fusion cage was increased significantly(P
5. Principal Components Analysis in Determination of Seven Chemical Constituents in Different Parts and Collecting Time of Sarcandra glabra by HPLC
Chinese Pharmaceutical Journal 2018;53(9):675-681
OBJECTIVE: To develop an HPLC method for simultaneous determination of seven active constituents including neochlorogenic acid, chlorogenic acid, cryptochlorogenic acid, quercetin-3-O-β-D-glucuronide, isofraxidin, kaempferol-3-O-β-D-glucuronide and rosmarinic acid in different parts and various collecting time of Sarcandra glabra. METHODS: The DIKMA Diamonsil C18 (4.6 mm × 250 mm, 5 μm) column was used. acetonitrile(A) -0.2% phosphoric acid(B) was used as the mobile phase with gradient elution(0 - 10 min, 5% A→15% A; 11 - 18 min, 15% A→25% A; 18 - 25 min, 25% A; 25 - 40 min, 25% A→40% A), at a flow rate of 1.0 mL•min-1. The detection wavelength was set at 344 nm and the column temperature was maintained at 35 ℃. RESULTS: The calibration curves of neochlorogenic acid, chlorogenic acid, cryptochlorogenic acid, quercetin-3-O-β-D-glucuronide, isofraxidin, kaempferol-3-O-β-D-glucuronide and rosmarinic acid were in good linearity over 9.32 - 466.00, 11.25 - 562.50, 10.94 - 547.00, 8.68 - 434.00, 10.48 - 524.00, 9.66 - 483.00 and 10.86 - 543. 00 μg•mL-1 (r = 0.999 6 - 0.999 9), respectively. The average recoveries (n = 6) were in the range of 99.0% - 101.5% and RSD were in the range of 0.85% - 1.8%. The optimal parts and collecting time of Sarcandra glabra are aerial parts and from September to November according to the comprehensive evaluation. CONCLUSION: The method is precise and reliable, can be used to determin the content of seven chemical constituents in Sarcandra glabra and provide a reference for collecting in cultivate area.
6. Optimization of Self-microemulsion Containing Total Saponins from Lysimachia capillipes by Central Composite Design-response Surface Methodology
Chinese Pharmaceutical Journal 2017;52(22):2012-2017
OBJECTIVE: To optimize the formulation of self-microemulsion containing total saponins from Lysimachia capillipes by central composite design-response surface methodology. METHODS: Based on the study of solubility, compatibility test and ternary phase diagram, central composite design-response surface methodology was adopted to optimize the best prescription with the emulsifying time, particle size, and Zeta pontential as indexes, physicochemical properties of this self-microemulsion were also determined. RESULTS: Optimum formulation was 12.93% of ethyl oleate, 57.25% of Kolliphor RH40, 29.82% of Transcutol. The a verage particle size, polydispersity index, Zeta pontential and drug loading of self-microemulsion containing total saponins from Lysimachia capillipes were 23.0 nm, 0.160, -20.28 mV and 10.52 mg·g-1.CONCLUSION: With good predictability, this methods can be used for the formulation optimization of self-microemulsion loaded total saponins from Lysimachia capillipes.
7.Clinical curative effect analysis of the intravitreal injection of anti VEGF antibody combined with Ex -press glaucoma drainage device for neovascular glaucoma
Xiang-Zhong, XU ; Jin, YAO ; Yu-Chen, SONG ; Ying-Nan, XU ; Guo-Fan, CAO
International Eye Science 2016;16(8):1564-1566
?AIM: To observe the clinical curative effect of the intravitreal injection of anti-VEGF antibody combined with the implantation of Ex-press glaucoma drainage device for neovascular glaucoma ( NG) .?METHODS:A retrospective analysis of 20 patients with NG, who got the intravitreal injection of anti -VEGF antibody combined with the implantation of Ex-press. The visual acuity, intraocular pressure ( IOP ) , iris neovascularization fade and intraoperative and postoperative complications were observed at 1wk, 1, 3 and 6mo postoperatively.?RESULTS:The average IOPs of 20 patients were 47 ± 5.6mmHg, 13.4 ±3.6mmHg, 15.3 ±4.2mmHg, 16.9 ± 5.3mmHg and 18.7 ±6.9mmHg preoperatively and postoperatively 1wk, 1mo, 3mo and 6mo with statistical difference (P<0.05).The intraoperative and postoperative complications of the implantation of Ex-press mainly included early shallow anterior chamber, drainage tube obstruction, filtering bleb scarring. There were 8 eyes with filtering bleb scarring with normal IOP.?CONCLUSION: The intravitreal injection of anti-VEGF antibody combined with implantation of Ex -press is effective for NG, which can significantly reduce the IOP.
8.Advances in antiviral research of adaptor-associated protein kinase 1 (AAK1) inhibitors
Xiang QI ; Song-wei JIANG ; Ying-hui YUAN ; Li XU ; Zi HUI ; Xiang-yang YE ; Tian XIE
Acta Pharmaceutica Sinica 2022;57(7):1991-2002
As one of the major sources of infection, viruses could infect all organisms including bacteria, plants, animals, and humans. Infectious diseases caused by viruses pose a great threat and damage to human health and economic activities all over the world. Adaptor-associated protein kinase 1 (AAK1) is a member of the Ark1/Prk1 family of serine/threonine kinases and a specific key kinase regulating the phosphorylation of AP-2 protein μ2 subunit T156. In the past, AAK1 has been regarded as a feasible biological target for the treatment of nerve pain. Recently, scientists have found that inhibiting AAK1 can regulate endocytosis and inhibit virus invasion into cells. Therefore, AAK1 could be the potential target of anti-virus therapy. This paper reviews the research progress of small molecule AAK1 inhibitors in the field of antiviral, analyzes the future research directions and challenges, and provides new ideas for the development of antiviral drugs targeting AAK1.
9.Effects of different concentrations of taurine on rabbit corneal endothelial cells
Jian, GE ; Xing, XIANG ; Jian-min, XU ; Ying-ming, ZHOU ; Qing, DI ; Ling, WANG
Journal of Shanghai Jiaotong University(Medical Science) 2009;29(7):825-827
Objective To investigate the adverse effects of taurine on rabbit corneal endothelial cells. Methods Six rabbits (12 eyes) were selected, and 6 histologic sections were prepared from each of the eyes. Rabbit corneal endothelial cells were cultured by explant culture method. Cells were innoculated on a 12-well tissue culture plate, 2%, 4%, 6%, 8% and 10% taurine solutions were added respectively (cells from the right and left eyes of the same rabbit were added the same concentration of taurine solution), and blank control was established. The growth of corneal endothelial cells was observed by inverted microscopy, and cell morphology on the 1st, 2nd, 4th, 6th and 8th day of culture was observed with Wright staining. Results Corneal endothelial cells cultured with 2%, 4% and 6% taurine solutions and those of blank control formed endothelial cell layers after culture for one week, and the cells exhibited hexagonal or round-like morphology. Corneal endothelial cells cultured with 8% taurine solution appeared to be undergrowth with small cell body on the 4th day, and cell death occurred on the 8th day. Corneal endothelial cells cultured with 10% taurine solution turned out to be undergrowth with small cell body on the 2nd day, and cell death had occurred. The same growth velocity and cell morphology were observed in the corneal endothelial cells from the right and left eyes of the same rabbit. Conclusion Taurine with concentration between 2% and 6% has no adverse effects on the growth of rabbit corneal endothelial cells.
10.Advances in research on chemical constituents, pharmacological actions and processing of atractylodes macrocephala
ZHOU YING ; LI JING-JING ; JIANG BAO-XIANG ; XU XIAO-YU
Chinese Journal of Pharmacology and Toxicology 2017;31(10):1012-1012
Rhizome atractylodes macrocephalae is the dry roots of Atractylodes macrocephala Koidz. It is one of commonly used Chinese medicine. In the ″Shennong's Herbal″, it was listed as the top grade. It mainly contains volatile oil, atractylenolides, atractylodes polysaccharides, glycosides and amino acids.And it has the medical functions of good for spleen and intestine, diuretic and dehumidifi?cation, hidroschesis, miscarriage prevention and soon.In order to provide references for further devel?opment and utilization, this paper systematic arranged the Chinese medicine atractylodes chemical composition, pharmacological effects, processing technology and effect of processing technology on chemical composition and pharmacological action.