Objective To study the relationship between the coping style and self-concept of college engi-neering students.Methods 559 engineering students were assessed with the Coping Style Questionnaire and the Tennessee Serf-Concept Scale.Results (1) The positive factors of self-concept had significantly negative correla-tion to the coping styles of serf-blame,illusion,avoidance,and rationalization(-0.445～-0.136,P<0.01),but had significantly positive correlation to the coping style of solving problem and seeking help(0.119～0.432,P<0.01).Serf-criticism had significantly negative correlation to the coping styles of serf-blame,illusion,avoidance,and rationalization(0.134～0.215,P<0.01);(2)There were significant differences between high self-concept students and low self-concept students for coping styles(P<0.01) ;(3) The factors of serf-concept had significant predictability on coping styles.Conclusion There was a higher correlation between the coping style and serf-con-cept of college engineering students.

Objective To investigate the stress distribution of the femur after cemented prosthetic replacement in aged patients with comminuted intertrochanteric fracture and to analyze the difference of stress distribution between cemented long and short stem prosthesises.Methods A volunteer's left femur image data was obtained by spiral CT tomography.Then,the three-dimensional model of the femur was reconstructed with Mimics and Unigraphics modeling softwares.Based on the above analysis,we established three-dimensional modles of comminuted intertrochanteric fracture,long stem and short stem prothesises,and mantle layer of cement.Finally,we established the three-dimensional finite element model of these materials with software ABAQUS6.5,and carried out finite element analysis to the model in biomechanics.Results The stress disrilbution of the femur after cemented long and short stem prosthetic replacement didn't change significantly.The stress distribution of short stem between cement and prothetic stem were in the correlative area of distal end of the prothesis,and the lateral peak value was 21.3 MPa which exceeds the fatigue strength of bone cement;However,that of long stem were in the middle of medial interface and in the distal end of bilateral interface.There was no significant stress concentration zone in the mantle layer of cement which was used to reconstruct calcar femorale.Conclusion The stress distribution of the femur didn't change significantly after treating comminuted intertrochanteric fracture of aged patients with cemented long and short stem prosthesises.The cemented long stem prosthesises may be more suitable to treat these patients for its lower loosening probability.

Objective To explore the effect of reconstructing unilateral cleft lip by changing the arc-shaped incision, combined with the 3D reconstruction of upper lip muscles.Methods Twenty unilateral cleft lip patients were treated by using a new surgical operation, the 3D reconstruction of upper lip muscle, to restore normal anatomy and stress of the mucous membrane, muscle and skin.Operation scar was designed for straight line, located on the philtral ridges of the contour line;phitrum and philtral ridges were rebuilt, and postoperative scar reduced.Results A lot of 20 patients had no local infection, hemorrhage, complex crack, and were stage I incision healing.Followed up for 1-8 months postoperatively, the patient's lip bow line continuity was good, with symmetrical shape and good phitrum and philtral ridges;scar was hidden on the philtral ridges of the contour line, and no obvious upper lip scar contracture found through the follow-up period.Conclusions This improved method is simple in the incision design, and less scar hidden on the philtral ridges of the contour line after operation, which can maximize the recovery of the appearance of nose and upper lip with satisfactory effect.It is a feasible improvement method of repairing unilateral cleft lip.

Objective:To monitor the dynamic changes in coagulation function and assess their clinical significance in patients with gas-tric cancer by using thromboelas to gram (TEG). Methods:A total of 178 patients with gastric cancer from March 2014 to May 2015 in Xinxiang Central Hospital were selected as the experimental group. The patients were grouped based on different tumor stages, inva-sion depths, and lymph node metastasis. The TEG results of all patients were dynamically monitored before and after operation, and 60 healthy persons were selected as normal control group. Blood coagulation change was analyzed by comparing the TEG test results. Results:Compared with those of the control group, the TEG parameters of the experimental group showed significantly decreased R and K values, as well as significantly increased Angle, CI, and MA values, and the differences were statistically significant (P<0.05). In the experimental group, the K values were significantly decreased after operation, whereas Angle, MA, and CI were significantly in-creased (P<0.05). No significant changes were observed in R, LY30, and others. TEG values were significantly different in the compari-son of values for tumor patients with different stages, different tumor infiltration degrees, and with or without lymphatic metastasis. Conclusion:Blood hypercoagulability in the perioperative period was observed in patients with gastric cancer and was positively corre-lated with tumor stages, tumor infiltration degrees, and lymphatic metastasis. Dynamic monitoring of gastric cancer perioperative TEG can provide valuable information for clinical treatment, improve the safety of gastric cancer surgery, and reduce postoperative compli-cations associated with active clinical significance.

Objective To investigate the effects of alpha lipoic acid on patients with diabetic retinopathy (DR),explore the possible mechanisms,and provide experimental evidence for the treatment of DR with lipoic acid.Methods Totally 75 DR patients were randomly divided into control group and treatment group.Patients in control group received the standard hypoglycemic treatment,antihypertensive therapy,and other comprehensive treatment.Patients from the treatment group were treated with alpha lipoic acid 600 mg + 250 ml 0.9％ sodium chloride injection additionally,avoiding light intravenous therapy,for a total of 4 weeks.Before and after treatment,fundus fluorescein angiography and visual inspection were detected in two groups.In addition,serum level of asymmetric dimethylarginine (ADMA) were detected with high performance liquid chromatography,serum lipid peroxidation product malondialdehyde (MDA) content and superoxide dismutase (SOD) activity were detected to reflect the in vivo oxidative stress before and after treatment in two groups.Results Compared to the control group,visual acuity was improved significantly (P ＜ 0.05),and total efficiency of ocular lesions-improved was increased significantly (84.21％ vs 40.54％,x2 =15.28,P ＜ 0.01).Serum levels of endogenous inhibitor of nitric oxide synthase ADMA [(0.32 ±0.13) μmol/L vs (0.51 ± 0.26) μmol/L,P ＜ 0.05] and MDA [(3.22 ± 0.90) nmol/L vs (5.13 ± 0.42) nmol/ml,P ＜ 0.05] were significantly decreased,while SOD levels [(72.68 ± 1.31) U/ml vs (53.16 ± 1.54) U/ml,P ＜0.05] were significantly increased in DR patients after alpha lipoic acid treatment.Conclusions Alpha lipoic acid had some therapeutic effects for DR patients,which mainly lied in the improvement of visual acuity and eye disease,might be related to the decrease of oxidative stress and serum level of endogenous nitric oxide synthase (NOS) inhibitor ADMA.

OBJECTIVETo explore the effect of microneedle combined with Lauromacrogol on skin capillary network.

METHODS24 male Leghone (1.5-2.0 kg in weight) were randomly divided into three groups as group A (microneedle combined with Lauromacrogol), B (microneedle combined with physiological saline) , and C(control). The cockscombs were treated. The specimens were taken on the 7th, 14th, 21th , and 28th day postoperatively. HE staining, immunohistochemical staining and special staining were performed for study of the number of capillary and collagen I/III , as well as elastic fibers.

RESULTSThe color of cockscombs in group A became lightening after treatment. The number of capillary decreased as showing by HE staining. The collagen I and III in group B was significantly different from that in group A and C (P < 0.05). Special staining showed proliferation of elastic fibers in group B.

CONCLUSIONSIt indicates that microneedle combined with Lauromacrogol could effectively reduce the capillary in cockscomb without any tissue fibrosis. Microneedle can stimulate the proliferation of elastic fiber, so as to improve the skin ageing process.

Animals ; Capillaries ; anatomy & histology ; Chickens ; Comb and Wattles ; blood supply ; drug effects ; Male ; Needles ; Polyethylene Glycols ; pharmacology ; Punctures ; instrumentation ; methods ; Random Allocation ; Skin Aging

Objective Innovate scientific research management thinking,explore new scientific research management models,and enhance hospital's competitiveness.Methods The hospital insistently adheres to the path of science and education hospital development in the practice of scientific research management,and takes measures of creating academic atmosphere,innovating management concept,rationalizing incentive measures,setting supporting policies,and so on.Results The hospital has gained certain progress in the fields of key discipline construction,research project,talent plan,scientific and technological achievements,etc.Conclusions The path of science and education hospital development plays an important role in the further healthy and sustainable development of hospital.

Objective To explore the cooperative mechanism of hospital research management and ethics review.Methods Through the analysis of current ethical conditions,as well as the relationship between hospital research management and ethical review,study on how to integrate them during the management of scientific research project.Results Research management and ethical review have different emphasis from different perspectives,however,both of them serve for research projects which makes inseparable connections.Conclusions Hospital research management and ethical review can be synergistic,according to which the management of scientific research projects will be more reasonable and scientific.

Objective To explore the role of transforming growth factor-β1/serum and glucocorticoid induced kinase 1 (TGF-β1/SGK1) signaling pathway in diabetic nephropathy (DN).Methods Totally 60 clean grade healthy male Sprague-Dawley (SD) rats were divided into normal control (Con group,n =20) and diabetic model group (diabetic group,n =40).Type 2 diabetic animal model was induced by intraperitoneal injection of streptozotocin (STZ,45 mg/kg) to SD rats.Half of rats in each group were sacrificed after implemented for 4 weeks and 8 weeks,respectively.Fasting glucose,serum urea and creatinine,as well as urine protein in 24 h were detected.Pathological changes of rats' kidney cortex tissue were examined by hematoxylin-eosin staining.The expression of SGK1 was detected by immunohistochemistry in renal tissue.The mRNA level of SGK1 was analyzed by real-time polymerase chain reaction (PCR).The protein expression of TGF-β1 and SGK1 were determined by Western blotting.Results Compared to the control group,the blood glucose of the diabetic group rats was significantly increased,kidney hypertrophy index,serum urea and creatinine,24 h urine volume and urinary microalbumin as well as kidney index were significantly higher (P ＜0.05).The mRNA expressed of SGK1,protein expression of TGF-β1 and SGK1 were also increased obviously in the renal cortex of diabetic rats (all P ＜ 0.05 vs Control).Conclusions TGF-β1/SGK1 signaling pathway is closely related to the TIF damage of kidney cortex in diabetic rats.

Objective To investigate the changes of visual acuity,fundus changes,and serum vitamin D concentration in diabetic retinopathy patients treated with metformin,and to evaluate its clinical efficacy.Methods Totally 80 cases (160 eyes) patients with background diabetic retinopathy were included in the study,and were divided into observation group (metformin + Pancreatic Kininogenase Enteric-coated Tablets) and control group (Pancreatic Kininogenase Enteric-coated Tablets) according to the different treatment methods used for 3 months.Fundus fluorescein angiography was used to evaluate the improvement of the fundus lesions.The serum levels of vitamin D were measured with electrochemiluminescence immunoassay (ECLIA).Results After 3 months of treatment,serum vitamin D concentration of the observation group increased,and the differences were statistically significant (P ＜ 0.05) when compared to before treatment.However,3 months after treatment,serum vitamin D levels of the control group increased slightly,but the difference was not statistically significant (P ＞ 0.05).The total effective rate of fundus improvement in the observation group and the control group was 70％ and 55％,respectively.There was significant difference between the two groups in the improvement of fundus (P ＜ O.05).Conclusions Metformin has an adjunctive effect on background diabetic retinopathy,and the increase of serum vitamin D may be one of the mechanisms of metformin in improving diabetic retinopathy.