1.β-Cyclodextrin-cross-linked Polymer Coupled Ultraviolet-Visble Spectrophotometry for Separation and Analysis of p-Nitrophenol
Chinese Journal of Analytical Chemistry 2009;37(11):1691-1694
The β-cyclodextrin cross-linked polymer(β-CDCP) was used as adsorbent to pre-concentrate/separate the trace p-nitrophenol and then the determination was carried by UV-Vis spectrophotometry. Under alkaline condition,the adsorption/elution behavior of p-nitrophenol was studied. In 0. 02 mol/L NaOH solution and at room temperature for 30 min,the resin could separate and pre-concentrate the p-nitrophenol effectively. Methanol solution(1:1,V/V) was used as eluent and the β-CDCP could be used repeatedly. The linear range and detection limit was 0.5 -90.0 mg/L and 3. 10 μg/L,respectively. The proposed method has been used to determine the p-nitrophenol in synthesized sample with satisfactory results.
2.The protective effects of TGP on local cerebral ischemia in rat
Chinese Pharmacological Bulletin 2001;17(2):223-225
AIM To observe the protective effects of TGP on local cerebral ischemia. METHODS The local cerebral ischemia in rat was made by middle cerebral artery occlusion(MCAO). The infraction weight was determined by NBT stain. SOD, MDA and apoptosis were determined with different method respectively. RESULTS TGP 20 mg*kg-1 ip markedly improved the abnormal nervous symptoms, increased the SOD activity and reduced contentes of MDA in MCAO rat. TGP 20 mg*kg-1 ip significantly decreased the numbers of apoptotic cells in ischemic cortex. CONCLUSION TGP has protective effects against cerebral infarction, and its mechanism may be related to anti-apoptosis and free radical.
3.Anesthesia experience for the elderly patients with total hip replacement
International Journal of Surgery 2009;36(2):90-91
Objective To discuss the anesthesia experience for the elderly patients undergoing total. Methods All 50 cases received the epidural anesthesia, during the operation, MAP,HR and SPO2 were monitored. The blood glucose was monitored for each 45 minutes for the diabetes patients. Results All patients satisfied with the effect of epidural anesthesia, blood pressure dropped to varying degrees, the appropriate colloidal solution was used to expand capacity, prepared baek-ephedrine and alropine. These measures help maintain a stable blood pressure, iinprove the blood indexes, save blood transfllsion, reduce the ineidenee of lung infection, also provide a good postoperative epidnral analgesia. reduce Ihe occurrence of postoperative complications. Conclusion Continuous epidural anesthesia in ehterly patients with total hip replacement might help reduce postoperative complications and improve the quality of rehabililtation.
4.Molecular regulation mechanism of pancreatic islet β-cell remodeling in neonatal stage
Chinese Journal of Endocrinology and Metabolism 2013;(4):351-353
The neonatal period is important for the dramatic increment as well as function improvement of islet β-cell.β-cell mass augmentation is primarily regulated by neogenesis,replication,and apoptosis.The mechanisms involve cell cycle related proteins and mitosis-promoting signaling pathways.This remodeling period has far-reaching effects on the body in adapting to the metabolic needs and regulating glucose homeostasis later in life.
5.A study on the life quality of patients with condyloma acuminatum and correlated factors
Chinese Journal of Behavioral Medicine and Brain Science 2008;17(7):609-610
Objective To evaluate the quality of life and correlated factors in patients with condyloma acuminatum (CA). Methods 101 patients with CA and 50 healthy people as control were assessed by using the questionnaire of QOL-35. Results Compared with control group, the total score and general, physical, inde-pendence, psychological, social, environment domains scores of QOL were lower significantly in the CA group ( P <0.05). The QOL score has negative correlation with course of disease( r= -0.233, P<0.05), recurrence times(r= -0.556, P<0.05). Nevertheless, it has no noticeable correlation with gender, age, marital status, education, career (P0.05). Conclusion Quality of life was lower in patients with CA, and it was closely related with the course of disease and recurrence times.
6.Endoscopic variceal ligation versus β-blockers plus isosorbide mononitrate in prevention of esophageal variceal re-bleeding: a Meta-analysis
Chinese Journal of Digestive Endoscopy 2009;26(3):128-133
Objective To compare the therapeutic effect of endoscopic variceal ligation (EVL) and β-blockers plus isosorbide mononitrate (ISMN) in prevention of esophageal varieeal re-bleeding. Methods The randomized clinical trials (RCTs) on EVL and β-blockers plus ISMN for the prevention of esophageal varieeal re-bleeding were searched, and only the results from those with Jadad score higher than 3 were eval-uated with RevMan 4. 2 software for odds ratio (OR) with 95% confidence intervals (95%C1). Analysis of sensitivity was performed on the quality of the data and publication bias was investigated with funnel plots. Results Four trials matched the criteria were recruited including 504 cases with a follow-up from 8 to 25 months. There was no significant difference in rates of re-bleeding (OR =0. 93, 95% CI =0. 41 ~ 2. 11 ; P = 0. 87), re-bleeding due to esophageal varices (OR = 0. 68, 95% CI = 0. 19 ~ 2. 37 ; P = 0. 54), therapy-re-lated adverse effects (OR = 1.12, 95% CI =0. 75 ~ 1.67, P = 0. 57), severe adverse events (OR = 0. 89, 95% CI =0. 47 ~ 1.67, P = 0. 71), bleeding-related mortality (OR = 2. 11, 95% CI = 0. 88 ~ 5.08, P = 0. 10), or overall mortality (OR = 1.46, 95% CI = 0. 95 ~ 2. 24, P = 0. 09) between EVL and β-blockers plus ISMN groups. However, a trend towards lower bleeding-related mortality and overall mortality favored drug therapy. There was no heterogeneity found in the outcomes apart from re-bleeding (P = 0. 003) or re-bleeding from esophageal varices (P <0. 0001). The result of sensitivity analysis remained statistically sta-ble. Symmetric funnel plots showed there was no evidence of publication bias. Conclusion EVL and β-blockers plus ISMN show an equivalent efficacy and safety for the prevention of esophageal variceal re-bleed-ing. There is a trend towards lower bleeding-related mortality and overall mortality in drug therapy. But EVL is free from drug-related side effects, and its adverse events are similar to those of drug therapy. Thus, either of the two approaches can be used as the first choice for prophylaxis of re-bleeding of esophageal varices.
7.Novel therapy for Hodgkin lymphoma: reports in the 55th ASH annual meeting
Journal of Leukemia & Lymphoma 2014;23(1):5-6,8
The 55th ASH annual meeting published a special report about Hodgkin lymphoma,which mainly contains management of early-stage Hodgkin lymphoma,novel targeted therapy and the optimal treatment of lymphocyte-predominant Hodgkin lymphoma.The therapy of Hodgkin lymphoma should be individualized,in order to improve both PFS and OS.More clinical trials should be designed on the target therapy and the treatment strategy of nodular lymphocyte-predominant Hodgkin lymphoma.
8.Preparation and process optimization of HCPT-loaded PLGA microvesicles by ultrasound
Journal of Third Military Medical University 2003;0(14):-
Objective To investigate the effects of different technical conditions on the microvesicle size,envelopment rate,morphology of surface and so on in order to select the best technical conditions to prepare HCPT(10-hydroxy-camptothecin)-loaded PLGA microvesicles.Methods Microvesicles were prepared by a water/oil/water emulsion and solvent evaporation method.Various factors related to the envelopment rate and micmparticle size were studied,such as the ratio of water phase and oil phase,ultrasound power,and time,stirring time and so on.Single factor experiments and orthogonal design testing was carried out to optimize the technology of microvesicles preparation.Results The best processing conditions for microvesicles preparation were as following: HCPT 25 mg,PLGA 1.875 g,the ratio of internal and external phases 1∶15,and the PVA concentration 3%.These preparative variables produced global,smooth and glossy microvesicles.Electric charges were probably between-40 to 0 mV,microvesicles sizes ranged from 500 to 1 000 nm,envelopment rate was 79.33%,drug loading to the microvesicles was 0.478 3%,and ultrasonic imaging was clear in vitro.Conclusion Our optimize technical conditions can prepare injectable microvesicles by ultrasound.
9.Application of gene chip technology to medicinal plant researches
Chinese Traditional and Herbal Drugs 1994;0(10):-
Recently,gene chip technology has become a rapidly developed biotechnology.It contains so many advantages including large-scale, high flux,and parallelism that it has been widely applied in many fields.In this paper,the updated advances on applications of gene chip technology to medicinal plant researches are discussed and the contents are ranged from isolation of differentially expressed genes,discovery of new genes,research on functional genomics,identification of Chinese materia medica,detection of genetically transformed medicinal plants,and the molecular mechanisms of medicinal plant pharmacology and their diseases as well.Some problems and prospects related to the technology are also briefly presented.
10.Relationship among serum levels of suppressors of cytokine signaling-3, insulin-like growth factor binding ;protein-1 and hyperglycemia in critically ill children
Chinese Journal of Applied Clinical Pediatrics 2015;(18):1391-1394
Objective To investigate the relationship among serum levels of suppressors of cytokine signaling-3(SOCS-3),insulin-like growth factor binding protein-1(IGFBP-1) and hyperglycemia in critically ill children. Methods The 64 critically ill children who suffered from sepsis,after surgical repair of congenital heart dis-ease by extracorporeal circulation, and after surgery of severe traumatic from January 2009 to January 2012 in Depart-ment of Pediatric Intensive Care Unit( PICU) of Guangzhou Women and Children′s Medical Center were selected as the research object. According to the blood glucose levels on admission, the 64 children were divided into the normal glu-cose group and the hyperglycemia group. The 15 cases of healthy children in the same period in Guangzhou Women and Children′s Medical Center were selected as the healthy control group. The levels of blood glucose,insulin,SOCS-3,IG-FBP-1 and insulin resistance index( HOMA-IR) were measured and compared among groups when they were on ad-mission. Results (1) The blood glucose of the hyperglycemia group was significantly higher than those in the normal glucose group and the healthy control group[(9. 83±2. 48) mmol/L vs (4. 82±0. 76) mmol/L,(4. 49±0. 81) mmol/L] (P<0. 05). (2) Both of the insulin and HOMA-IR in critically ill children with hyperglycemia were significantly higher than those in the other 2 groups[9. 68(5. 85,17. 35) mU/L vs 4. 08(2. 00,7. 41) mU/L,2. 83(2. 00,10. 10) mU/L;4. 30(2. 70,7. 66) vs 0. 87(0. 39,1. 94),0. 52(0. 38,2. 56)](P<0. 05). (3) The serum SOCS-3,IGFBP-1 levels among the hyperglycemia group,the normal glucose group and the healthy control group were not of significant difference (P>0. 05). (4) The blood glucose was positively correlated with the insulin and HOMA-IR(r=0. 455,0. 773,P<0. 05),but there was no significant correlation among the blood glucose,insulin,HOMA-IR,SOCS-3 and IGFBP-1(P>0. 05). Con-clusions In the critically ill children,hyperglycemia was related to the insulin resistance which can not be evaluated through changes in serum levels of SOCS-3 and IGFBP-1. In addition,it cannot be excluded that the critically ill chil-dren may have insulin resistance and pancreaticβ-cell dysfunction simultaneously.