Objective: To investigate the applied feasibility of scaffold with modified PLA (Polymer of lactic acid) in tissue engineering. Methods:First, we adopted salting-in method to prepare porous foam scaffold. Then, we reconstructed tissue engineering skin by epidermal cells and fibroblasts combined with modified PLA. On the 14th day of cell culturing in vitro, we was a control. Results:The arfificial skin is composed of epidermis and dermis and similar to natural skin in appearance. The skin consists of fibroblasts and keratinocytes, which are in various proliferation and differentiation stages. Fibroblasts and keratinocytes distribute on the surface of polymer of lactic acid (PLA) and the number of fibroblast and keratinocyte increase. Conclusion:Dialdehyde starches (DAS) not only improve the function of PLA but also have good effects on cells. Moreover, it does not affect the growth and the metabolism of the cells. So it is feasible to use modified scaffold to construct tissue engineering skin.

Objective To observe the effect of underground part-obturated environment on human health. Methods 12 testees were chosen to undergo the experiment of 6 days in the part-obturated situation. The microclimate blood routine immunological items and the symptoms were investigated. Results In the part-obturated environment the average temperature was 15.2 ℃ the humidity was 75.5% the velocity of the wind was 0.06 m/s. Among the testees one was found had higher WBC number three had higher lymphocytes number. During the experiment the average value of CD3+ CD8+ and B cell were 60.05% 26.04% and 10.41% respectively the NK cell was higher compared with the controlbefore the experiment the differences were significant P

Purpose: To investigate the relationship between rumination, coping strategies, and subjective well-being (SWB) and test the mediating effects of coping strategies on rumination and SWB in patients with breast cancer (BC). Methods: This cross-sectional study assessed rumination, coping strategies, and SWB using the General Well-being Schedule, the Chinese Event-Related Rumination Inventory, and the Medical Coping Modes Questionnaire in BC patients admitted to a tertiary general hospital in China. Results: SWB was positively associated with the total score for rumination (r = .32, p < .01), deliberate rumination (r = .75, p < .01), and confrontation (r = .58, p < .01). The relationship between rumination and SWB was mediated by confrontation (indirect effect = .74). Conclusion BC diagnosis can affect patient's SWB. These findings indicate that rumination and confrontation have direct and indirect effects on SWB. Therefore, psychological interventions focused on improving coping may increase SWB. Notwithstanding, larger longitudinal studies are needed to further examine the relationship between cognitive processes, coping strategies, and SWB.

Purpose: To investigate the relationship between rumination, coping strategies, and subjective well-being (SWB) and test the mediating effects of coping strategies on rumination and SWB in patients with breast cancer (BC). Methods: This cross-sectional study assessed rumination, coping strategies, and SWB using the General Well-being Schedule, the Chinese Event-Related Rumination Inventory, and the Medical Coping Modes Questionnaire in BC patients admitted to a tertiary general hospital in China. Results: SWB was positively associated with the total score for rumination (r = .32, p < .01), deliberate rumination (r = .75, p < .01), and confrontation (r = .58, p < .01). The relationship between rumination and SWB was mediated by confrontation (indirect effect = .74). Conclusion BC diagnosis can affect patient's SWB. These findings indicate that rumination and confrontation have direct and indirect effects on SWB. Therefore, psychological interventions focused on improving coping may increase SWB. Notwithstanding, larger longitudinal studies are needed to further examine the relationship between cognitive processes, coping strategies, and SWB.

OBJECTIVETo investigate the effects of ischemic postconditioning (IPostC) on pneumocyte apoptosis after lung ischemia/reperfusion injury in rats.

METHODSAdult male SD rats were randomly divided into 3 groups based upon the intervention (n = 8): control group (C), lung ischemic reperfusion group (LIR), LIR+ IPostC group (IPostC). At the end of the experiment, blood specimens drawn from the arteria carotis were tested for the content of malondialdehyde (MDA), the activity of superoxide dismutase (SOD) and myeloperoxidase (MPO); the pneumocyte apoptosis index (AI) was achieved by tennrminal deoxynucleotidyl transferase mediated dUTP nick end abeling (TUNEL); the expression of Bcl-2, Bax protein in lung tissue was accessed by quantitative immunohistochemistry (MHC) and Bcl-2, Bax mRNA by RT-PCR.

RESULTSIPostC could significantly attenuate the MDA level, MPO activity and improve SOD activity in blood serum which was comparable to I/R and significantly reduced the number of TUNEL-positive cells compared with I/R group, expressed as Al (% total nuclei) from (39.0 +/- 3.46) to (8.0 +/- 0.88) (P < 0.01). The protein and mRNA expression of Bcl-2 and Bax showed that IPO significantly attenuated the ischemia/reperfusion-upregulated expression of Bax protein but improved the expression of Bcl-2 that improved the Bcl-2/Bax ratio (P < 0.01) .

CONCLUSIONIPostC may attenuate pneumocyte apoptosis in LIRI by up-regulating expression of Bcl-2/Bax ratio and by inhibiting oxidant generation and neutrophils filtration.

Alveolar Epithelial Cells ; cytology ; Animals ; Apoptosis ; Ischemic Postconditioning ; Lung ; metabolism ; pathology ; Lung Injury ; physiopathology ; Male ; Malondialdehyde ; metabolism ; Peroxidase ; metabolism ; Proto-Oncogene Proteins c-bcl-2 ; metabolism ; Rats ; Rats, Sprague-Dawley ; Reperfusion Injury ; physiopathology ; Superoxide Dismutase ; metabolism ; bcl-2-Associated X Protein ; metabolism

OBJECTIVETo investigate the safety and efficiency of the disposable circumcision suture device (DCSD) in the surgical treatment of phimosis and redundant prepuce.

METHODSWe randomly assigned 249 outpatients with phimosis or redundant prepuce to be treated with DCSD (n = 129) and by conventional circumcision (CC, n = 120), respectively. Then we compared the safety and efficiency of the two strategies.

RESULTSComparisons between DCSD and CC showed that the operation time was (4.02 +/- 0.69) vs (30.8 +/- 4.05) min, blood loss was (1.07 +/- 1.29) vs (8.72 +/- 2.15) ml, intraoperative pain score was 0.81 +/- 0.81 vs 2.42 +/- 1.15, 24-hour postoperative pain score was 1.84 +/- 1.02 vs 4.99 +/- 1.36, postoperative complication rate was 13. 95% (18/129) vs 9.17% (11/120), wound healing time was (13.99 +/- 9.06) vs (17.48 +/- 3.49) d, satisfaction with the penile appearance was 98.4% (127/129) vs 95% (109/120), and treatment cost was (2215.62 +/- 17.67) vs (576.47 + 15.58) Y RMB. DCSD exhibited obvious superiority over CC for shorter operation time, less blood loss, milder intraoperative pain, sooner wound healing, and better penile appearance, but it also had a higher rate of postoperative complications (P > 0.05) and involved more treatment cost than the latter (P < 0.05).

CONCLUSIONThe disposable circumcision suture device affords ideal clinical effects and therefore deserves clinical popularization.

Circumcision, Male ; instrumentation ; Disposable Equipment ; Follow-Up Studies ; Humans ; Male ; Phimosis ; surgery ; Surgical Staplers ; Treatment Outcome

OBJECTIVETo investigate the role of Caspase-8 and Bcl-2 in the formation of loose bodies in Kashin-Beck disease (KBD).

METHODSSpecimens of cartilage loose bodies were collected from 50 adult patients with KBD, and the samples of articular cartilage were collected from 10 healthy adults to serve as control. Avidin-biotin alkaline phosphatase immunohistochemistry was employed to examine Bcl-2 and Caspase-8 positivities in the chondrocytes in the loose bodies.

RESULTSIn KBD loose bodies, the percentage of chondrocytes positive for Bcl-2 and Caspase-8 [(18.40∓8.78)% and (67.54∓12.29)%, respectively] were significantly higher than those of the control group [(12.25∓1.58)% and (24.70∓4.35)%, respectively]. Caspase-8 was found to promote chondrocyte apoptosis in the loose bodies, and this effect overrode the apoptosis-suppressing effect of Bcl-2. Bcl-2 and Caspase-8 positivities were found mainly in the deep hypertrophic chondrocytes in the cartilage or in cells adjacent to the bone tissues.

CONCLUSIONKBD loose bodies contain an increased percentage of apoptotic chondrocytes positive for Bcl-2 and Caspase-8. The apoptosis-inducing effect of Caspase-8 was a dominant feature in the cartilage pathology of KBD compared to the apoptosis-suppressing effect of Bcl-2.

Adult ; Apoptosis ; Cartilage ; pathology ; Case-Control Studies ; Caspase 8 ; metabolism ; Female ; Humans ; Joint Loose Bodies ; metabolism ; Kashin-Beck Disease ; metabolism ; pathology ; Male ; Middle Aged ; Proto-Oncogene Proteins c-bcl-2 ; metabolism

In order to prove the feasibility of preparation of the drug-incorporated stent by immersing stent wires in the monoclonal antibody (mAb) solution, fluorescence stain and image analysis were used to evaluate the L-PLA-coated stent. Absorption was measured using a radioisotope technique after preparing the mAb-incorporated stent, and the absorption curve was determined from the absorption data. In an in vitro perfusion circuit, the antibody was eluted from the stent matrices, and the related influence factors were evaluated based on the release data.
Absorption ; Alloys ; chemistry ; Antibodies, Monoclonal ; chemistry ; immunology ; Drug-Eluting Stents ; Graft Occlusion, Vascular ; immunology ; prevention & control ; Humans ; Lactic Acid ; chemistry ; Platelet Aggregation Inhibitors ; chemistry ; immunology ; Platelet Glycoprotein GPIIb-IIIa Complex ; immunology ; Polymers ; analysis ; chemistry ; Time Factors

BACKGROUND: Because of scaphoid irregular shape and the wrist joint and adjacent bones overlap, so the diagnosis and treatment of scaphoid fracture and treatment became so difficult. Which imaging methods hold highest diagnosis rate, and which kind of surgical approaches with less impact on fracture healing are still under discussion.OBJECTIVE: To review the imaging examinations of scaphoid fracture and the research advance in surgical approaches.METHODS: The first author retrieved CJFD and PubMed databases for the literature addressing the imaging examinations and surgical approaches of scaphoid fracture published from 2005 to 2015 with the keywords of "scaphodl bone, fracture, iconography, surgical approach" in Chinese and English, respectively. The old and repetitive articles were excluded, totally 3021 articles were retrieved. In accordance with inclusion and exclusion criteria, finally 24 eligible articles were included for result analysis.RESULTS AND CONCLUSION: (1) The wrist joint at positions of pronation 60°, supination 45°, oblique and lateral can reveal the scaphoid from different angles on X-ray, which improves the diagnosis rate. At present, CT is the most reliable method, but there is a lack of quantization parameter for evaluating scaphoid fracture, especially for occult fracture. MRI can completely show the structure of scaphoid, even blood supply. Bone scintigraphy possesses a higher diagnosis rate than X-ray and CT examinations. (2) The surgical approaches of scaphoid fracture include volar, dorsal, radiocarpa approaches, but none is ideal. (3) The ideal surgical approach still needs a in-depth study, which can well reveal the scaphoid, achieve good reduction, reduce the damage to the remaining blood supply, confirm the position of scaphoid benifical for internal fixator implantation, and can be minimally invasive and easy to operate.

Adolescent ; Adult ; Age of Onset ; Female ; Humans ; Male ; Middle Aged ; Spinal Cord Diseases ; diagnosis ; pathology ; Young Adult