Serum ?-carotene contents of both the healthy adults and the patients with malignant tumour diagnosed by pathology were measured in Shenyang city. It was found that the levels of ?-carotene in the tumour group were obviously lower than those of the healthy adults (p

Objective:To explore the current situation of obtaining high quality and efficient medical service in clinical application of mobile tele-consultation terminal about cell phone. Methods: The technical basis of mobile teleconsultation terminal of cell phone and its application status in domestic and abroad were analyzed. This method was compared with other tele-consultation method at service, mode and cost and other aspects.Results: In the clinical application, mobile tele-consultation terminal about cell phone has many positive roles and advantages, for example, it could enhance the level of diagnosis and treatment for doctor who work in district and community, and resolve medical burden for patients, and promote grading diagnosis and treatment.Conclusion:The mobile tele-consultation terminal can obtain high quality and efficient medical service by investing lower capital. And with the continuous development of the network tele-consultation technique, satellite consultation technique and mobile terminal consultation of cell phone in future, they will further enhance the hospital medical service ability.

Objective To synthesize a new-type thermosensitive liquid embolic material and to investigate the feasibility of using this material to occlude cerebral arteriovenous malformations (AVMs).Methods The copolymer was synthesized with N-isopropylacrylamide (NIPAM) and N-n-propylacrylamide (NNPAM),and it's physical and biological properties were estimated.The embolization of AVMs model in vitro by using this copolymer was conducted and the results were analyzed.Results The new-type copolymer possessed unique thermal behavior of lower critical soluble temperature (LCST),and it was water-soluble and non-adhesive with better biocompatibility.The successful embolization of AVMs model could be reliably obtained.Conclusion The copolymer synthesized by the authors is a new-type liquid embolic agent suitable for endovascular embolization of cerebral AVMs in vitro.Based on the results in experiment animals having been reported in medical literature,this copolymer can be further used in clinical research.

Adolescent ; Child ; Child, Preschool ; Endoscopy ; Esophageal and Gastric Varices ; surgery ; Female ; Humans ; Infant ; Ligation ; Male

Adult ; Crown Lengthening ; Dental Prosthesis ; Dental Prosthesis Design ; Esthetics, Dental ; Female ; Gingiva ; Humans ; Incisor ; Smiling

Objective To investigate the effect of IL-1 7A on lipopolysaccharide (LPS)-induced neuroinflammation and fear conditioning test.Methods Among 70 male SD rats aged 18 months, firstly,thirty rats were randomly divided into five groups:control group(group A),LPS 6 h group (group B),12 h group(group C),24 h group(group D),48 h group(group E).Group A were injected intraperitoneally with normal saline and groups B,C,D and E were injected with LPS 500 μg/kg.Ani-mals of groups A,B,C,D and E were killed respectively after LPS injection and their hippoeampus tis-sue was detected for the concentration of IL-1 7A.Secondly,forty rats were randomly divided into 4 groups:control group(group O),IL-1 7A antibody group(group P),LPS group (group Q),IL-1 7A antibody+LPS group(group R).Group P and group R were injected intracerebroventricularly with IL-1 7A antibodies 3 μl (200 μg/μl),groups O and Q were injected equal volume of normal saline.30 min later,groups Q and R were injected intraperitoneally with LPS 500 μg/kg,groups O and P were in-jected equal volume of normal saline.24 h later,contextual fear conditioning test was performed. Then,all animals were killed and their hippocampus tissue would be detected for the concentration of TNF-αand IL-6,as well as the expression of Iba1-positive cells.Results The concentration of IL-1 7A of groups B,C,D and E increased significantly compared with group A (P <0.01 ),there was no difference between groups E and A.The freezing time of groups Q and R was significantly shortened than that in group O(P <0.01 or P <0.05 ),the freezing time of group R was significantly longer than that in group Q(P <0.01).The concentration of TNF-αand IL-6 of groups Q and R was obvi-ously higher than group O(P <0.01 ),the concentration of TNF-α and IL-6 of group R lower than group Q(P <0.01).The expression of Iba1-positive cells in hippocampal area CA1 of groups Q and R was obviously increased compared with group O(P <0.01).Compared with group Q,the expression of Iba1-positive cells in hippocampal area CA1 of group R were obviously decreased (P < 0.05 ). Conclusion IL-1 7A is implicated in the early stage of LPS-induced neuroinflammation and the chan-ging of freezing time in contextual fear conditioning in aged rats.

Adult ; Aged ; Aged, 80 and over ; Asbestos ; adverse effects ; Environmental Exposure ; adverse effects ; Female ; Humans ; Male ; Middle Aged ; Pleural Diseases ; chemically induced ; diagnostic imaging ; Tomography, X-Ray Computed

OBJECTIVETo study the over-expression of mutant p53 protein in non-mucinous adenocarcinoma in-situ (NMAIS) and invasive adenocarcinoma, NOS of lung.

METHODSImmunohistochemical study for p53 protein was performed on 17 cases of NMAIS and 70 cases of invasive adenocarcinoma, NOS of lung. The difference in p53 over-expression between the two tumor subtypes was analyzed.

RESULTSThe over-expression of mutant p53 protein was observed in 0 case (0%) of NMAIS and 37 cases (52.9%) of invasive adenocarcinoma, NOS of lung. The difference was of statistical significance (P = 0.000).

CONCLUSIONMutant p53 protein over-expression may play a role in the progression of NMAIS to invasive adenocarcinoma, NOS.

Adenocarcinoma ; metabolism ; Adenocarcinoma in Situ ; metabolism ; Humans ; Immunohistochemistry ; Mutant Proteins ; genetics ; metabolism ; Tumor Suppressor Protein p53 ; genetics ; metabolism

Arrhythmias, Cardiac ; etiology ; Coronary Vessels ; pathology ; Humans ; Male ; Mediastinal Cyst ; pathology ; Young Adult

BACKGROUND:Copper-titanium aloy has been fabricated in previous studies to improve the antibacterial property and biocompatibility of titanium materials. OBJECTIVE:With reference to the principle and experimental method specified by GB/T16886-ISO10993, to fuly and systematicaly assess the biocompatibility of copper-titanium aloy. METHODS:Based on the pre-experimental results, titanium aloy containing 10% copper was selected and subjected to oral mucosa stimulation experiment, skin stimulation test, acute systemic toxicity test, hemolytic test, prothrombin time test and dynamic coagulation test for biocompatibility evaluation. RESULTS AND CONCLUSION:The copper-titanium aloy has no oral mucous membrane irritation, no short-term systemic toxicity, no skin sensitization, and no hemolysis, indicating it has a good biocompatibility.