According to the background of the age of big data, the medical devices are informatized, we analyze the safety and efficiency for the information and data of digital medical devices or medical systems, also discussed some test methods. Lack of a suitable standard system of digital medical devices is a big problem both for domain standard and international standard. GB25000.51 is too ambiguous and free for testing, also not very operational. So this paper suggested some test advices and some prospective method. These test methods are helpful for finding the problem and performing the standards. What's more, these methods are famous in the world and used widely in the 3C region but just start in the medical region, which can promote the development of the medical devices.
Computer Security ; standards ; Equipment and Supplies ; standards

Severe acute pancreatitis is a relatively common surgical disease. Patients have a hypermeta-bolic state and nutritional support for patients with SAP is needed. Early enteral nutrition support is a viable option and can improve the nutritional status of patients, protect the gut barrier function, reduce bacteria translocation to regulate the inflammatory response and reduce hospitalization costs. Combined with our do-mestic and foreign literatures in recent years, this review the feasibility and practical implementation of enter-al nutrition in severe acute pancreatitis treatment summarizs.

Humans typically have 22 pairs of autosomal chromosomes in cells,and a pair of sex chromosomes.Some individuals have an extra,autosomal chromosome called a small supernumerary marker chromosome (sSMC).sSMC is a structurally abnormal chromosome fragment.The fragments are too small and no-specific banding pattern to be identified by conventional banding cytogenetic analysis.Array-based comparative genomic hybridization (aCGH),fluorescence in situ hybridization (FISH) or other molecular biological methods are necessary for the diagnosis.This article summarized the karyotype,pathogenesis,and the clinical manifestations of the sSMC-related chromosome 18p abnormalities.The patients with sSMC usually presented with abnormal chromosome syndrome.Some syndromes are relative common,such as Pallister-Killian syndrome,isochromosome 18p syndrome,Cat eye syndromes or Emanuel syndrome.sSMC is considered to be the frequent cause of mental retardation.The patients have no specific symptoms.With the progress of molecular cytogenetics,more sSMC has been identified.Genetic counseling and prenatal diagnosis are important to prevent sSMC.Molecular cytogenetic techniques are necessary to the diagnosis.

OBJECTIVETo explore clinical effectiveness of internal fixation and semi-shoulder arthroplasty in treating proximal humerus comminuted fractures in elderly.

METHODSFrom October 2009 and October 2011, 32 patients aged over 60 years old with three and four-part fractures of proximal humeral were treated with internal fixation (20 cases) and semi-shoulder arthroplasty (12 cases). In internal fixation group, there were 6 males and 14 females aged from 63 to 82 years old (ranged, 71.50 +/- 5.45), 8 cases with three-part fracture and 12 cases with four-part fracture, and treated with open reduction and locking plate internal fixation. While in semi-shoulder arthroplasty group, there were 4 males and 8 females aged from 61 to 85 years old (ranged, 72.80 +/- 6.80), 5 cases with three-part fracture and 7 cases with four-part fracture, and treated with semi-shoulder arthroplasty. Postoperative complications were observed, EQ-5D was used to evaluate quality of life, and Constant-Murley score was used to assess functional outcomes.

RESULTSAll patients were followed up from 12 to 24 months with an average of 18 months. All injuries were healed at stage I . Two cases in internal fixation group occurred severe complications, including 1 case with screw fracture, 1 case with avascular necrosis of humeral head. EQ-5D in interal fixation group and semi-shoulder arthroplasty group were respectively 0.65 +/- 0.12, 0.67 +/- 0.12, Constant-Murley score respectively was 63.20 +/- 11.35 and 66.80 +/- 11.96, and with no statistical meaning between two goups (P>0.05).

CONCLUSIONThere is no difference in qulity of life and functional recovery for the treatment of proximal humerus comminuted fractures by open reduction and internal fixation and semi-shoulder arthroplasty. However, the complication rate in semi-shoulder arthroplasty was lower than that of internal fixation group.

Aged ; Aged, 80 and over ; Arthroplasty ; methods ; Case-Control Studies ; Female ; Fracture Fixation, Internal ; methods ; Fractures, Comminuted ; surgery ; Humans ; Humeral Fractures ; surgery ; Male ; Middle Aged ; Shoulder Fractures ; surgery ; Treatment Outcome

Purpose:To invastigate the changes of the related signaling pathways and it's mechanism of reguation of mitogen activated protein kinase cascade(MAPK) by SUM149 cells induced plasmid of dominant-negative E-cadherin mutant H-2k~d-E-cadherin.Methods:Using western blot method,we examined the signal pathway of mitogen activated protein kinase(MAPK) between the dominant-negative mutant E-cadherin transfected SUM149 cells and controls.Results:Compared with the controls,the phosphorylated extracellular signal regulated kinase P44/42 expresion of the SUM149 cells which expressed higher dominant-negative mutant E-cadherin was significantly down-regulated.Conclusions:In this cell line model,the down-regulation of P44/42 may involve the regulation of MMPs.

Purpose: To investigate the plasma levels of chemokine IL-8, GM-CSF, RANTES and MCP-1 in patients with breast carcinoma and in healthy controls and to explore its clinical, pathologic and diagnostic significance. Methods: Enzyme linked immunosorbent assay ( ELISA) kits were used in 93 breast cancer patients and 20 health controls, and clinical significance was analysed. Results: The plasma levels of IL-8, RANTES and MCP-1 were significantly higher in the patients than in

To investigate the distrbution of cag Ⅰin Helicobacter pylori(Hp) isolated from Chinese patients, and its relationship to gastroduodenal diseases. Fragment in cag Ⅰ was amplified by polymerase chain reaction(PCR) in 107 Hp strains from Chinese patients. Results The amplicom to cag Ⅰ was positive in 93 strains, of which 57 strains came from patients with chronic gastritis, 31 strains from peptic ulcer, and 5 strains from gastric carcinoma.Conclusion Existance of cag Ⅰ of Hp strains was popular in the Chinese population, but no data had proven the relation ship between the existence of cag 1and occurrence of Hp related diseases and inflammatory infiltration in gastric mucosa.

To investigate the distribution of IS605 in Helicobacter pylori(Hp) isolated from Chinese patients, and its relationship to gastroduodenal diseases. The fragment in IS605 was amplified by polymerase chain reaction(PCR) in 107 Hp strains from Chinese patients. Results: The amplicom to IS605 was positive in 47 strains. Detective rates of IS605 in Hp from duodenal ulcer (13.6%) were lower than that from gastritis(52.2%). It suggested that: the detection of IS605 was related to alternation in virulence of Hp.

A vector for a mutant Chinese Helicobacter pylori (Hp) strains knock out pathogenicity island (PAI) was constructed, which was the basis to establish a Chinese Hp mutant deleting pathogenicity island. Genetic engineering techniques such as polymerase chain reaction, plasmid extraction, agarose gel electrophoresis, restriction analysis, ligation, preparation of competence cell and transformation were used to make two cloning fragments containing two end regions of PAI and a selectable chloramphenicol resistance marker between them, and then engineering the recombined fragments into pBluescript plasmid. The result showed that restriction analysis demonstrated that the engineering mutant vector had been recombined. It suggested that we constructed an engineering mutant vector which targeted to delete the PAI in Chinese Hp strains. It will be useful for addressing the role of PAI in the pathogenesis of Hp infection.

Acupuncture Points ; Adult ; Combined Modality Therapy ; Female ; Humans ; Male ; Medicine, Chinese Traditional ; Middle Aged ; Urticaria ; therapy