Objective:To establish an atomic absorption spectrometry method for the determination of lead and ferrum in pre-mix-ture coating film. Methods:The samples were digested by microwave digestion system, and Pb was determined by graphite atomic ab-sorption spectrometry(GFAAS), and Fe was determined by flame atomic absorption spectrometry(FAAS). Results: There was good linear relationship within the range of 1.0-5.0 μg·L-1(r=0.999 4) for lead and 0.1-1.0 mg·L-1(r=0.998 4) for ferrum. The recovery of lead was 91. 3%(RSD=1. 4%,n=9)and that of ferrum was 89. 9%(RSD=3. 5%,n=9). Conclusion: The method is accurate and stable, which can be used for the determination of lead and ferrum in pre-mixture coating film

Objective:To research the efficacy and safety of fluticasone propionate spray for allergic rhinitis children suffering with adenoidal hypertrophy. Methods:Totally 160 allergic rhinitis with adenoids growth children were in the observation group, in which 109 cases were diagnosed as adenoidal hypertrophy. Totally 157 adenoids growth children were in the control group, in which 114 cases were diagnosed as adenoidal hypertrophy. The two groups both received fluticasone propionate spray treatment for 3 months, and then the nasal endoscopic adenoidectomy volume, symptom score and adverse reactions were observed and analyzed. Results:Allergic rhi-nitis children suffering with adenoidal hypertrophy were mainly in the 3-6-year-old children. After the treatment, adenoids was shrinked in 88 patients (80. 73%) in the observation group, which was significantly higher than that in the control group [67(58. 77%), P<0. 01]. Adenoidal hypertrophy was still in 44 patients (35. 03%) of the observation group after the treatment, which was lower than that of the control group [55(68. 13%), P <0. 05]. In addition, the integral differences of nasal congestion, snoring and mouth breathing in the observation group after the treatment were higher than those in the control group, and the differences were statistically significant (P<0. 05). Conclusion:The efficacy of fluticasone propionate spray used in allergic rhinitis children suffering with adenoi-dal hypertrophy is more obvious than that in adenoid hypertrophy children, which can more significantly improve the symptoms of nasal congestion, snoring and mouth breathing.

Incidence of ankle fractures is relatively high.Malunited ankle fractures result from inappropriate nonoperative treatment and incorrect surgery as well.It is not difficult to diagnose a malunited ankle fracture when taking history,symptoms and imaging examinations into consideration.Orthopaedic surgeons used to do ankle fusion for this kind of patients as the effect of reconstructive surgery is not clear.This article summarizes the diagnostic and therapeutic methods for ankle fracture malunion based on the articles from 1976 to 2015.More detailed therapeutic methods for deformities involving lateral malleolus,tibiofibular syndesmosis,medial malleolus and posterior malleolus are also reviewed.

Child ; Codon, Nonsense ; genetics ; DNA Mutational Analysis ; DNA Primers ; genetics ; Dent Disease ; diagnosis ; genetics ; Exons ; genetics ; Humans ; Infant ; Male ; Mutation ; Oculocerebrorenal Syndrome ; diagnosis ; genetics ; Phosphoric Monoester Hydrolases ; genetics ; Polymerase Chain Reaction

Acquired Immunodeficiency Syndrome ; prevention & control ; China ; Health Plan Implementation ; History, 20th Century ; History, 21st Century ; Humans ; Internationality ; Public Policy ; history ; Quality Control

Objective To explore the prothrombotic state of patients with ulcerative colitis(UC) and the relationship with phase,severity and Truelove classification.Methods 97 patients with UC were grouped by non-active phase and active phase;The latter were subdivided into mild,moderate and severe degree by clinical manifestation and TrueloveⅠ,Ⅱ,Ⅲ via endoscopy,vWF activity,fibrinogen and D-dimer were detected in all patients.Results vWF activity,fibrinogen and D-dimer were markedly higher in active phase than in non-active phase(t=14.137,3.435,3.625,respectively).There were no significant difference in vWF activity,fibrinogen and D-dimer between mild,moderate and severe degree and Truelove Ⅰ,Ⅱ,Ⅲ.Conclusion Prothrombotic state including hypercoagulation and secondary fibrinolysis correlates with the clinical phase of UC significantly.

Objective To evaluate the relationship of central aortic pressure (CAP) with atherosclerosis and left ventricular function in elderly patients with essential hypertension. Methods A total of 155 elderly hypertensive patients were divided into two groups: aged 60-79 years group (n = 71) and aged 80-95 years group (n= 84). Central aortic waveforms were generated using pulse wave analysis, then CAP and augmentation index (AI) were determined. Auto-survey atherosclerosis apparatus was applied to examine brachial-ankle pulse wave velocity (baPWV), ankle-brachial index (ABI) and toe-brachial index (TBI). Interventricular septal thickness at end diastole (IVSd), left ventricular end-diastolic dimension (LVDd), left ventricular posterior wall thickness at end diastole (LVPWd), relative left ventricle thickness (RLVT), left ventricular mass index (LVMI), Ejection fraction(EF) slope, left ventricle ejection fraction (LVEF) and fractional shortening (FS) were measured by the two-dimensional echoeardiography. Results Systolic pressure (SBP), pulse pressure (PP), CAP, AI and baPWV were significantly higher in aged 80-95 years group than in aged 60-79 years group (all P<0.05), ABI and TBI were significantly lower oppositely (both P<0. 01). IVSd, LVPWd, RLVT and LVMI were all significantly higher and EF slope was lower in aged 80-95 years group than in aged 60-79 years group (all P<0. 057. There were no significant differences in LVDd, LVEF and FS between the two groups (both P>0. 05). CAP had positive association with PP, AI and baPWV (r=0. 505,0. 284,all P<0.01). After adjustment for age, gender, smoking, body mass index, fasting blood sugar, creatinine, uric acid, cholesterol, triglyceride, low-density lipoprotein cholesterol and high-density lipoprotein cholesterol, there was no significant relationship between CAP and ABI or TBI (both P>0. 05). There was also positive association of CAP with IVSd, LVPWd, RLVT, LVMI, while negative associations of CAP with EF slope (all P<0. 01). There were no significant relationship between CAP and LVEF, FS, LVDd (all P> 0.05). Conclusions CAP and degree of artherosclerosis increase with aging in elderly patients with essential hypertension, which contributes to left ventricular hypertrophy and the decreased diastolic function. CAP helps to make an early diagnosis of or screening arteriosclerosis, and it is an important forecast factor for cardiovascular disease.

BACKGROUND:Platelet rich plasma contains various growth factors, such as platelet-derived growth factor, metastatic growth factor, insulin-like growth factor, epidermal growth factor as wel as vascular endothelial growth factor. Therefore, it can directly or indirectly promote cel differentiation and proliferation in different stages of bone regeneration.
OBJECTIVE:To study the effects of coral bone with platelet rich plasma in the repair of mandibular defects.
METHODS: Totaly 24 New Zealand white rabbits were randomly divided into three groups (n=8 per group) including test group, control group and blank control group. Coral bone with autologous platelet rich plasma, coral bone or nothing was implanted, respectively, after establishing unilateral mandibular defect models. The defects were evaluated by imaging observation and bone his-tomorphometric analysis at 2, 4, 8, 12 weeks after surgery.
RESULTS AND CONCLUSION:At 12 weeks after surgery, by imaging observation, density of the defect increased in the blank control group, which was lower than that of the normal bone; the bone density in the test group was higher than that in the control group, both of which were similar with the normal bone. Besides, the materials were closely combined with the new tissues. By bone his-tomorphometric analysis, area of the new bone in the test group was significantly larger than that in the control and blank control group (P< 0.05). In conclusion, coral bone with platelet rich plasma has good biocompatibility and bone conductivity, which can induce bone regeneration to promote defect repair.

Objective To investigate the effect of different dose of atorvastatin on endothelium dependent vasodilatation function in hypertensives without hyperlipemia in attempt to verify the hypothesis of "beyond antihyperlipimia" effect of statins.Methods Fifty-five hypertensives without hyperlipemia were randomly to receive atorvastatin(10 mg/d,n=25)or(20 mg/d,n=30).Twenty-five normotensives were enrolled in control group.Serum cholesterol were determined.Flow-mediated dilation(FMD)and endothelium-independent dilatation(EID)were measured with high-resolution ultrosonography before and after 4 weeks atorvastatin.Results Compared with control group,FMD were significant decreased in hypertensives without hyperlipemia.FMD were improved after atorvastatin for 4 weeks(atorvastatin 10 mg group:7.5%?2.7% vs 11.5%?3.1%,P

Objective To study the changes of clonality of T cell receptor (TCR) and complementarity determinative region 3(CDR3) before and after autologous peripheral blood CD34+ stem cell transplantation(auto-PBSCT) for severe/refractory connective tissue disease(CTD). Methods Thirteen patients with severe/refractory CTD were enrolled for auto-PBSCT in Peking Union Medical College Hospital, including systemic lupus erythematosus (8 cases), rheumatoid arthritis(4 cases), and primary Sjogren’s Syndrome(1 case). Blood samples were collected before/after mobilization, 2 weeks, 1, 3, 6, 12 and 18 months post-transplantation. Diversity of TCRBV and CDR3 were showed by reverse transcription-polymerase chain reaction(RT-PCR) and genescan. Results The TCR BV usage and CDR3 spectral pattern of pre-auto-PBSCT CTD patients were revealed skewed pattern and oligoclonality, Which developed severe oligoclonality within 1 months after auto-PBSCT. However, they showed diversity andpoly-clonality 3～6 months after auto-PBSCT. Conclusion Skewed pattern and oligoclonality of TCRBV and CDR3 which implied auto-reactive were depressed after auto-PBSCT, and inclined to change to normal pattern.