1.CONTINUOUS DETERMINATION OF Zn, Fe, Mn, Cu, Pb, AND Cd WITH POLAROGRAPHIC CATALYTIC METHOD
Acta Nutrimenta Sinica 1956;0(01):-
The contents of 6 trace elements in "Ginseng Three-treasure" oral liquid and biological sample were determined with polarographic catalytic method by use of the solution of ethylenediamine and 8-hydroxyquinoline (pH11.50-12.00) as medium. The peak potentials of Zn, Fe, Mn, Cu, Pb,and Cd were -1.45V,-1.66V,-1.7GV, -0.61V,-0.74V, and-0.94V, respectively and the peak heihgts were linearly proportional to the concentration over a range of 0-5ppm,0-5ppm, 0-5ppm, 0-3ppm, 0-4ppm,and 0-6ppm respectively. The lower limit for determination of all the six trace elements was 2ppb. The recovery rates were 98.7%, 103.3%, 104.5%, 104.8%, 95.0% and 95.0% and the coefficient of variation was 5.8-10.0%. This method was accurate and suitable for operation.
2.Curcumin affects expression of HGF and TGF-β1 of lung tissue in pulmonary fibrosis
Journal of Chinese Physician 2011;13(11):1468-1472
ObjectiveTo explore the effect of Curcumin on TGF-β1 and HGF in pulmonary fibrosis and the effect of different concentrations of Curcumin on the expression of HGF and TGF-β1 in pulmonary fibrosis.Methods90 health male SD rats were randomly divided into six groups as follows:the control group ( group A),model group ( group B),prednisolone-treated group ( group C),and groups of low ( D group),middle( group E) and high( group F) dose curcumin (50,100,and 200 mg/kg,respectively).Animal model of pulmonary fibrosis was produced in SD rats by the endotracheal bleomycin,samples were obtained on days 7,14,and 28.The expression of HGF and TGF-β1 were measured by RT-PCR and Westem blot.ResultsThe light density values (0.693 ±0.028) and gray value (0.96 ±0.10)of TGF-β1 on day 28 of group A was the lowest,while the light density values ( 1.586 ±0.020) and gray value ( 1.77 ±0.15 ) of group B was the highest,the light density values (0.881 ± 0.032) and gray value ( 1.19 ±+ 0.12 )of group F was lower than group B.But the light density value and gray value of HGF showed reverse,the light density values and gray value of HGF on day 28 of group F was the highest,there was no statistical difference between group B and group D ( P > 0.05).ConclusionsThe protective effect of Cucumin against pulmonary fibrosis may be through stimulating the activity of HGF and inhibiting the activity of TGFβ1 in a dose-dependent manner.
3.Prognostic value of combining postprocedural fibrinogen with C-reactive protein levels in acute myocardial infarction patient underwent primary percutaneous coronary intervention
Rong HE ; Zhenhua YANG ; Haiyan LI
Chinese Journal of Interventional Cardiology 1996;0(01):-
Objective To evaluate the prognostic value of combining postprocedural fibrinogen with high-sensitivity C-reactive protein (hs-CRP) in first time ST elevated myocardial infarction (STEMI) patients who had underwent successful primary percutaneous coronary intervention (PCI).Methods A total of 183 consecutive patients who had their first acute STEMI attack and underwent successful primary PCI were enrolled. Fibrinogen and hs-CRP levels were measured within 12 hours after PCI. All patients were followed up for 2 years. The primary end point was death of any cause. The secondary end point was a combined end point of death, non-fatal MI, heart failure (NYHA Ⅲ~Ⅳ),myocardial ischemia confirmed by stress test and revascularization. Results Postprocedural fibrinogen level correlated with hs-CRP level linearly (r=0.452, P
4.Stainless steel T-shaped locking plate for repair of proximal clavicle fractures and sternoclavicular joint dislocation
Baozhu SUN ; Zhenhua ZHANG ; Gang HE
Chinese Journal of Tissue Engineering Research 2015;19(21):3414-3418
BACKGROUND:Internal fixation methods for traditional proximal clavicle fractures and sternoclavicular joint dislocation include Kirschner wire, Kirschner wire with tension band, clavicular hook plate and ordinary T-shaped plate fixation. However, al of these are easy to fal off, damage nerves and blood vessels and affect the fine motion of the sternoclavicular joint. OBJECTIVE:To investigate the therapeutic effects of internal fixation with T-shaped stainless steel locking plate on proximal clavicular fractures and sternoclavicular joint dislocation as wel as to observe the biocompatibility of materials with the host. METHODS: Twelve patients with proximal clavicular fractures and sternoclavicular joint dislocation were enroled at Shanxian Central Hospital from March 2011 to January 2014, including seven cases of proximal clavicular fractures and five cases of sternoclavicular joint dislocation. Al of patients were subject to open reduction and internal fixation with T-shaped locking plate. RESULTS AND CONCLUSION:Al the 12 patients were folowed up for 3-14 months, with an average of 9 months. Al incisions healed wel, with no local eminence. No major substernal blood vessels and organ damage occurred. X-ray films showed that fractures healed without further dislocation and steel plate fracture. At the last folow-up, Rockwood scoring system showed that the excelent rate of shoulder function was 100%. These findings indicate that the internal fixation with stainless steel T-shaped locking plate is reliable and effective in the treatment of proximal clavicle fractures and sternoclavicular joint dislocation, with low risks and satisfactory outcomes, by which, patients can maximize the recovery of shoulder function.
5.Dynamic hip screw combined with reduction fixation of lesser trochanter prevents hip coxa vara after intertrochanteric fractures:a meta-analysis
Zhenhua LIN ; Jianan HE ; Xingmo LIU
Chinese Journal of Tissue Engineering Research 2015;(31):5065-5071
BACKGROUND:More and more elderly patients have hip fractures because of diverse reasons, and most of the fractures are unstable fractures combined with the displacement of the lesser trochanter. At present, there are stil many reports about using dynamic hip screw to repair unstable intertrochanteric fractures, and the effect is obvious. However, there are stil great controversies regarding whether lesser trochanter fixation is performed during the repair process. OBJECTIVE:To evaluate the effect of using dynamic hip screw combined with the lesser trochanter fixation to repair intertrochanteric fractures and the occurrence of hip coxa vara after repair through a meta-analysis. METHODS:The PubMed, EMCC, CBM, CNKI, VIP and Wanfang databases were retrieved by computer for randomized controled trials on whether lesser trochanter reduction fixation was performed during the process of dynamic hip screw internal fixation for repair of intertrochanteric fractures. The quality of the included studies was evaluated according to the pre-designated inclusion and exclusion criteria. The available data were extracted and analyzed using the RevMan5.2 software. RESULTS AND CONCLUSION:A total of 10 randomized controled trials involving 604 patients were included. Among them, 298 cases were assigned to the dynamic hip screw combined with lesser trochanter fixation group, and 306 cases to the lesser trochanter unfixed group. The meta-analysis results indicated that hip coxa vara, other postoperative complications, the excelent and good rate of efficacy in the dynamic hip screw combined with lesser trochanter fixation group were al superior to those in the lesser trochanter unfixed group (alP < 0.000 1), and for hip coxa vara, the parameters were odds ratio=0.17, 95% confidence interval (0.07, 0.41),Z=3.99,P< 0.000 1. The operation time and the amount of blood loss in the lesser trochanter unfixed group were superior to those in the dynamic hip screw combined with lesser trochanter fixation group (alP < 0.000 1). These results suggest that the lesser trochanter unfixed therapy has the advantages of relatively simple operation, shorter operative time and less blood loss during the process of dynamic hip screw internal fixation for repair of unstable intertrochanteric fractures. However, the excelent and good rates of efficacy, hip coxa vara and other postoperative complications were superior in patients with intertrochanteric fracture above the Tronzo-Evans III type who received dynamic hip screw combined with lesser trochanter fixation to those who received lesser trochanter unfixed therapy. The results indicate that dynamic hip screw combined with lesser trochanter fixation for repair of intertrochanteric fracture is beneficial to prevent hip coxa vara and other complications.
6.Let-7 and miR-24 in UVB-induced apoptosis
Yingjie HE ; Ling GUO ; Zhenhua DING
Chinese Journal of Radiological Medicine and Protection 2009;29(2):234-236
Objective To study the function of let-7 and miR-24 in UVB-induced apoptosis.Methods After NIH3T3 cells were irradiated with UVB.Hoechest33342/PI staining was used to study the cell apoptosis and RT-PCR was used to uralyzc the expression level of let-7 and miR-24.In addition,potential target genes of these miRNAs in PicTar were classified into different function categories through GOstat software.Results Compared to the control,the NIH3T3 cells exposure to UVB appeared typical apoptotic and necrotic ceils by fluorescence microscope.The exprossion level of let-7 and miR-24 in NIH3T3 cells after UVB irradiation was higher than that of the control.Among the target genes,casp3,bc1212,map3kl and cdk5 were also involved in UVB-induced apoptosis mechanism.Conclusion Let-7 and miR-24 play a role in UVB-induced apoptosis.
7.The comparison of the perioperative effect between the minimal invasive esophagectomy and open ;esophagectomy
Dan HE ; Yi LIU ; Zhenhua WU ; Yang WANG ; Wei SUN
China Oncology 2016;26(11):932-938
Background and purpose:The traditional 3 incision surgery is an important means of esophageal cancer treatment, however, accompanied by more postoperative complications and higher mortality. Minimally invasive esophagectomy is a prospective technology with advantages, such as little trauma and quick recovery. This study retrospectively analyzed the perioperative effect of the esophagus cancer patients who accepted thoracoscopic-laparoscopic esophagectomy (TLE), open-laparoscopic esophagectomy (OLE) and open esophagectomy (OE) from Jan. 2013 to Jan. 2015. Methods:In this study, 72 patients received TLE, 76 patients received OLE and 115 patients received OE, respectively. One-way ANOVA, Kruskal Wallis test and Chi-square test were used to compare the differences of general clinical data, perioperative recover index, the number of lymphadenectomy and the postoperative complication among TLE, OLE and OE. Results:There were differences in the area of operative blood loss, duration of ICU stay and first standing time among the 3 groups. Pairwise comparison demonstrated that TLE group was signiifcantly better than OE group (P<0.012 5). The total number of lymphadenectomy among the 3 groups had no differences. However, the number of lymph node of the upper esophagus in the TLE groups was more than those in OLE group and OE group (P<0.001). The laryngeal recurrent nerve injury incidence in TLE group was signiifcantly higher than those in OLE group and OE group (P=0.012, 0.003). The total surgical complication had no differences among 3 groups. In areas of the cardiorespiratory system severe complication, 3 groups had statistical differences. Pairwise comparison showed TLE group was significantly less than OLE and OE group (P<0.0125). The first day and third day incidences of SIRS rate in TLE group were less than those in OLE group and OE group (P<0.0125). Conclusion:Comparing to OE group, with the same safety and feasibility, TLE had more advantages such as trauma, quick recovery, less complications. With the same effect of total lymphadenectomy to OE, TLE had the more advantage in upper mediastinal and recurrent laryngeal nerve lymph node cleaning.
8.Protective effect of rosiglitazone on cerebral ischemia/reperfusion injury in rats
Changhan OUYANG ; Jiliang WU ; Zhenhua HE ; Zhenjiao SHI
Chinese Pharmacological Bulletin 1987;0(01):-
Aim To investigate the protective effect of rosiglitazone on cerebral ischemia/reperfusion injury inrats. Methods Transient focal cerebral ischemia injury model in rats was induced by occlusion of the right middle cerebral artery for 2 h, followed by 24 h reperfusion. The infarct volume and neurological deficit were determined by the method of TTC staining and the Longa′s score, and used to evaluate the effect of rosiglitazone on cerebral injury. The levels of malondialdehyde (MDA), nitric oxide (NO), activities of superoxide dismutase (SOD), myeloperoxidase (MPO) and nitric oxide synthase (NOS) in brain were measured by spectrophotometer. Immunohistochemistry was employed to assess the expression of intracellular adhesion molucule-1 (ICAM-1). The histopathological change was observed after HE staining. Results Pretreatment with rosiglitazone markedly reduced brain infarct volume and neurological deficit induced by transient ischemia, inhibited MPO activity, as well as expression of ICAM-1; it also decreased NO, MDA levels and NOS activity, increased SOD activity, and improved histopathological injury. Conclusion Rosiglitazone has a protective effect on cerebral ischemia/reperfusion injury through inhibiting inflammatory process and lipid peroxidation.
9.Chemical constituents of Epimedium brevicornum
Yun YANG ; Hanjuan ZHANG ; Haihua HE ; Zhenhua ZHU
Chinese Traditional and Herbal Drugs 1994;0(07):-
Objective To study the chemical constituents of Epimedium brevicornum.Methods Compounds were isolated with various chromatographic techniques,their structures were elucidated by physicochemical methods and spectral analysis.Results Ten compounds were obtained and identified as p-nitroethylphenol(Ⅰ),salidroside(Ⅱ),5,7,4'-trihydroxy-8,3'-diprenylflavone(Ⅲ),kaempferol-3-O-?-L-dirhamnoside(Ⅳ),baohuoside-Ⅰ(Ⅴ),sagittatoside B(Ⅵ),2″-O-rhamnosylicariside Ⅱ(Ⅶ),7,3',4',5'-tetrahydroxyflavanol(Ⅷ),desmethylicaritin(Ⅸ),and 1-O-?-glucopyransosyl-1,4-dihydroxy-2-(3'-hydroxy-3'-methylbutyl)benzene(Ⅹ).Conclusion Compounds Ⅰ,Ⅱ,Ⅳ,and Ⅹ are isolated and identified from the plants of Epimedium L.for the first time and compound Ⅵ is isolated from the title plant for the first time.
10.Relationship between clinicopathological characteristics and lymph node metastasis in papillary thyroid carcinoma
Li LI ; Juan HE ; Xueting LI ; Zhenhua ZHANG ; Yuliang ZHAO
Cancer Research and Clinic 2017;29(8):547-550,560
Objective To investigate the clinicopathological characteristics of papillary thyroid carcinoma (PTC), and analyze their relationship with lymph node metastasis (LNM). Methods The clinicopathological data of 914 cases of PTC from January 2012 to December 2016 was analyzed retrospectively byχ2 test andχ2 trend test, including age, gender, tumor size, the number of lesions and LNM, in order to illuminate the characteristics of incidence and variation trend of PTC. Results The numbers of PTC cases in Shanxi Dayi Hospital increased year by year in recent 5 years (χ2=64.009, P=0.001). The rate of LNM was higher in age of ≤40 years old [34.9 % (84/241)] and > 70 years old [44.0 % (11/25)] than age 41-70 years old [15.6 % (101/648)] (χ2 = 39.577 and 14.009, both P= 0.000). It showed a triphasic pattern, which presented a uptrend with age decreasing in patients ≤ 40 years old (χ2= 10.490, P= 0.010), on the contrary, it appeared a rising trend with age increasing in patients>40 years old (χ2=10.170, P=0.010). The sex ratio of male and female was 1:2.97. The rate of LNM for male was higher than female (χ2=5.845, P=0.013). There was approximate risk of LNM between tumor diameter ≤1 cm and>1 cm (χ2=0.070, P=0.610). The rate of LNM in the cases of multiple lesions was apparently higher than that in cases of single lesions (χ2=145.440, P=0.000). Conclusions The incidence of PTC is on the rise. The risk factors of LNM are age (≤40 years old and>70 years old), male and multiple lesions.