Cysts ; congenital ; Humans ; Infant ; Laryngeal Diseases ; congenital ; Male

Objective:To compare the shear bonding strength between two kinds of veneering ceramics respectively bonded to Vita Mark II.Methods:Vita Mark II samples were prepaired in the size of 8 mm ×6 mm ×2 mm.Veneering ceramic VM9 and Titankeram-ik were sintered on the Vita Mark II blocks respectively(n =1 0).The shear bond strength of each specimen was measured,the failure mode of the fracture surface was observed by SEM.The element in the bonding interface was analysed by field emission scanning elec-tron microscope(FE-SEM).Results:The values of shear bond strength (MPa)of VM9 and Titankeramik groups were 36.1 7 ±8.91 and 42.07 ±8.31 respectively(P >0.05).SEM observation showed tight bond between the two materials,FE-SEM results showed penetration of Al element from MarkⅡblock into veneering porcelain VM9 or Titankeramik.Conclusion:Veneered porcelain of VM9 and Titankeramik can be used as the individual veneering ceramics for Vita Mark II blocs.

Objective To evaluate the effect of continuous renal replacement therapy (CRRT) on extracorporeal membrane oxygenation (ECMO)-induced expression of inflammatory factors in pig kidney.Methods Twenty-four adult pigs of either sex,weighing 25-32 kg,were randomly divided into 4 groups (n =6 each) using a? random number table:control group (group C),sham operation group (group S),ECMO group and CRRT group.Anesthesia was induced with ketamine,diazepam and atropine and maintained with ketamine and diazepam.The pigs were tracheotomized,intubated and mechanically ventilated.The left femoral arteries were cannulated for MAP monitoring.Heparin 150 U/kg was injected intravenously.Right femoral artery and left internal jugular vein were cannulated for blood-letting and fluid infusion.In ECMO and CRRT groups,ECMO was performed for 24 h starting from 1 h after cannulation,in addition CRRT was performed for 24 h simultaneously in ECMO group.The pigs were then sacrificed and kidney specimens were obtained for determination of the content of interleukin-1β (IL-1 β),IL-6 and tumor necrosis factor-α (TNF-α) by ELISA.Results There was no significant differ-ence in the content of IL-1β,IL-6 and TNF-α between C and S groups (P ＞ 0.05).Compared with C and S groups,the content of IL-1β,IL-6 and TNF-α was significantly increased in E and CRRT groups (P ＜ 0.01).Compared with group E,the content of IL-1β,IL-6 and TNF-α was significantly decreased in group CRRT (P ＜0.01).Conclusion CRRT can decrease ECMO-induced expression of inflammatory factors in pig kidney to some extent,indicating that it can alleviate the inflammatory responses in kidney.

Objective To investigate the mechanism of insulin resistance (IR) with coronary heart disease (CHD) by the relationship study between IR and the risk factors of CHD as well as the severity of coronary lesions. Methods One hundred and twenty three patients with at least one vessel ≥50% luminal narrowing were analyzed from our consecutive angiographic data base, excluding patients concomitant with hepatic, renal, pancreatic diseases, thyroid disorders and diabetes mellitus (DM) with insulin therapy. Oral glucose tolerance test (OGTT), blood lipid, plasma insulin were performed in all patients. Insulin resistance was assessed by homeostasis model assessment (HOMA) to investigate the relationship study between insulin resistance and the risk factors of CHD,severity of coronary lesions as well as the clustering of risk factors (hypertension, overweight, impaired glucose tolerance/DM, high serum triglycerides, low high density lipoprotein cholesterol). Results The level of IR was correlated with the levels of body mass index (BMI), fasting glucose, postprandial glucose, fasting insulin, postprandial insulin, hypertension, serum triglycerides, and high density lipoprotein cholesterol. Meanwhile the level of IR was associated with clustering of risk factors and the extent and the severity of coronary lesions. Conclusion Insulin resistance may be the basis for disease. In the primary and secondary prevention of CHD, we should not only treat syndromes but also reduce the level of IR.

Objective To investigate the expression of CKLF?2 mRNA in rats′ myocardium at different development phase. Methods Total RNA was extracted from fetal rat hearts at day12 and day 18 after coitus, and from new-born rat hearts right after birth, day 3, day 7 and day 21 after birth, as well as from adult rat hearts. The expression of CKLF?2 mRNA was tested by competitive polymerase chain reaction (CPCR). Results Compared with the postnatal myocardium, the expression of CKLF?2 mRNA obtained its peak level in the 12-day-post coitus, which then decreased gradually to a relatively low level until birth. It increased slightly at birth and subsided to the lowest level in adulthood. Conclusion CKLF?2 probably takes part in the procession of the myocardial proliferation and the development of rat′s heart.

Objective To investigate the correlation between atherosclerotic renal artery stenosis and the severity of coronary lesions in patients with confirmed coronary artery disease and the impact of renal artery stenosis on serum inflammation related factors.Methods 163 patients from Peking University First Hospital with confirmed coronary heart disease by coronary angiography underwent selective renal artery angiography from Dec 2002 to Sep 2003.Serum hypersensitive C reactive protein(hs-CRP)and Interleukin-6(IL-6)were measured.Results Patients combined with coronary disease and renal artery stenosis were presented with more acute coronary syndrome(ACS)and triple-vessel CAD.Serum hs-CRP and IL-6 levels were also higher in this group.Conclusion Renal artery stenosis is correlated with severe coronary disease.Inflammation state could be one of the reasons for this connection.

Acupuncture Points ; Acupuncture Therapy ; Adolescent ; Female ; Humans ; Male ; Osteochondritis ; therapy ; Tibia ; injuries ; Young Adult

OBJECTIVEThis study aims to test the accuracy and precision of iWitness photogrammetry for measuring the facial tissues of mannequin head.

METHODSUnder ideal circumstances, the 3D landmark coordinates were repeatedly obtained from a mannequin head using iWitness photogrammetric system with different parameters, to examine the precision of this system. The differences between the 3D data and their true distance values of mannequin head were computed.

RESULTSOperator error of 3D system in non-zoom and zoom status were 0.20 mm and 0.09 mm, and the difference was significant (P 0.05). Image captured error of 3D system was 0.283 mm, and there was no significant difference compared with the same group of images (P>0.05). Error of 3D systen with recalibration was 0.251 mm, and the difference was not statistically significant compared with image captured error (P>0.05). Good congruence was observed between means derived from the 3D photos and direct anthropometry, with difference ranging from -0.4 mm to +0.4 mm.

CONCLUSIONThis study provides further evidence of the high reliability of iWitness photogrammetry for several craniofacial measurements, including landmarks and inter-landmark distances. The evaluated system can be recommended for the evaluation and documentation of the facial surface.

The status quo of American informatics nurses investigated 4 times by US HIMSS from 2004 to 2014 was analyzed.The following characteristics of American informatics nurses were summarized in terms of their educa-tion level, income, qualification authentication, occupation satisfaction, work experience and duties, including high education level and interdisciplinary background, high income and occupation satisfaction, necessary clinical background, and systematic professional development, which may provide reference for nursing staff in China to have a better understanding of informatics nurse.