OBJECTIVE: To evaluate the age, sex, etiology, diagnosis and treatment time of nasal bone fractures. METHOD: Clinical data of 202 cases with nasal bone fractures treated in the hospital were retrospectively analysed. RESULT: A total of 202 cases,163 men (80. 7%) and 39 women (19. 3%). Fifty-two patients had a relationship with alcohol consumption, and all of them were males. The most frequent reasons of the injury were fight 46. 5% (94 cases) followed by falling-down 21. 3% (43 cases), traffic accidents 19. 3% (39 cases), works related 6. 5% (13 cases), sport injuries 5. 9% (12 cases) and others 0. 5% (1 cases). Patients distribution in seasons were: spring 54 cases (26.7%), summer 42 cases (20.8%), autumn 58 cases (28.7%), winter 48 cases (23. 8%). Diagnosis of nasal bone fractures were made positively by x-ray films in 79. 7% of cases, but 100% by CT. Positive predictive value of CT was superior to that of X-ray films in the diagnosis of nasal bone fracture. CONCLUSION High morbidity of nasal bone fracture was seen in the age group of 20-29 years, and predominantly in male. Fight was found to be the main etiologic factor. We think that CT is necessary for diagnosing nasal bone fracture.
Adult ; Facial Bones ; Female ; Fractures, Bone ; complications ; epidemiology ; Humans ; Male ; Nasal Bone ; injuries ; Nose Diseases ; Retrospective Studies ; Risk Factors ; Seasons ; Skull Fractures ; complications ; epidemiology ; Violence ; Young Adult

Objective To study the expression of human platelet factor 4 (hPF4)mRNA and its relationship with angiogenesis and lymph node metastasis in papillary throid carcinoma(PTC). Methods RT-PCR was used to detect the expression of hPF4 mRNA in 40 cases of PTC and 10 cases of normal tissue surrounding carcinoma. Immunohistochemical stain was performed to detect microvessel density(MVD) whose endothelia were marked by antibody CD105. Results The positive-expression rate of hPF4 mRNA was 80 % respectively in normal tissue surrounding carcinoma. The positive-expression rate of hPF4 was 47.5 % in PTC cases. The MVD value of PTC cases with hPF4 mRNA positive expression was significantly lower than that of cases without hPF4 mRNA expression (P

Objective To study the expression of thrombospondin(TSP) mRNA and its relationship with angiogenesis and lymph node metastasis in papillary thyroid carcinoma(PTC).Methods RT-PCT was utilized to detect the expression of TSP1 and TSP2 mRNA in 40 cases of PTC and 10 cases of normal tissue surrounding carcinoma.Immunohistochemical stain was performed to detect microvessel density(MVD) whose endothelia were marked by anti-CD105 McAb.Results The positive-expression rate of TSP1 mRNA,TSP2 mRNA was 80.0%,90.0% respectively in normal tissue surrounding carcinoma.The positive-expression rate of TSPI mRNA was 45.0%.The positive-expression rate of TSP2 mRNA was 47.5%.The MVD value of PTC cases with TSP1 and TSP2 mRNA positive expression was significantly lower than that of cases without TSP1 and TSP2 mRNA expression(P

Objective To analyze the mediating effect of mental resilience on the relationship between work stress and sleep quality in psychiatrists. Methods A total of 221 front-line psychiatrists from four mental health centers in Shannxi Province were selected as the study subjects using convenience sampling method. The questionnaires of Scale for Occupational Stressors on Clinician，Chinese Version of Connor-Davidson Resilience Scale and Pittsburgh Sleep Quality Index Scale were used to investigate the work stress，mental resilience and sleep quality of the psychiatrists. We conducted Bootstrap mediation test to analyze the mediating effect of mental resilience using SPSS PROCESS V3.5 macro program. Results The total score of work stress of psychiatrists was 97.0±17.5，and the medium（P25，P75）of mental resilience and sleep quality scores were 84.0（75.5， 94.0）and 6.0（5.0，9.0）respectively. The detection rate of sleep disorders among psychiatrists was 33.9%（75/221）. The total score of work stress of psychiatrists was negatively correlated with the total score of mental resilience ［rank correlation coefficient（rS ）=−0.34，P<0.01］，and was positively correlated with the total score of sleep quality（rS =0.48，P<0.01）. The total score of mental resilience was negatively correlated with that of sleep quality （rS = − 0.39，P<0.01）. The work stress of psychiatrists had a positive predictive effect on sleep quality［standardized regression coefficient（β）=0.41.P<0.01］，and a negative predictive effect on mental resilience（β）=−0.38，P<0.01）. Mental resilience had a negative predictive effect on sleep quality（β）=−0.24，P<0.01. Mental resilience played a partial mediating role between work stress and sleep quality，and the mediating effect accounted for 22.0% of the total effect. Conclusion Both work stress and mental resilience of psychiatrists can directly affect their sleep quality，and the mental resilience has a partial mediating role in the effect of work stress on sleep quality.

Focusing on the poor mechanical strength of porous bioceramics bone scaffold, and taking into account of the good mechanical properties of biodegradable magnesium alloy, we proposed a novel method to fabricate magnesium alloy/bioceramics composite bone scaffold with stereolithography double channels. Firstly, a scaffold structure without mutually connected double channels was designed. Then, an optimized bioceramics scaffold was fabricated according to stereolithography and gel-casing. Molten AZ31 magnesium alloy was perfused into the secondary channel of scaffold by low-pressure casting, and magnesium alloy/bioceramics composite bone scaffold was obtained when magnesium alloy was solidified. The compression test showed that the strength of bioceramics scaffold with only one channel and without magnesium alloy was (9.76 ± 0.64) MPa, while the strength of magnesium alloy/bioceramics composite scaffold with double channels was (17.25 ± 0.88) MPa. It can be concluded that the magnesium alloy/bioceramics composite is obviously able to improve the scaffold strength.
Alloys ; Biomechanical Phenomena ; Bone and Bones ; Ceramics ; Humans ; Magnesium ; Materials Testing ; Porosity ; Tissue Scaffolds

OBJECTIVE:To systematically review the efficacy and safety of Kanglaite injection combined with radiothreapy in the treatment of the non-small cell lung cancer (NSCLC),and provide evidence-based reference for clinical treatment. METH-ODS:Retrieved from PubMed,Cochrane Library,EMBase,VIP,CJFD,Wanfang database and CBM,randomized controlled tri-als(RCT)about the efficacy and safety of Kanglaite injection combined with radiothreapy in the treatment of NSCLC were collect-ed. Meta-analysis was performed by using Rev Man 5.3 software after data extraction and quality evaluation with modified Jadad scale. RESULTS:Totally 9 RCTs were included,involving 561 patients. Results of Meta-analysis showed,Kanglaite injection com-bined with radiothreapy can significantly improve the effective rate [OR=2.99,95%CI(2.07,4.31),P<0.001] and improvement rate of life quality [OR=3.74,95%CI(2.36,5.92),P<0.001],and reduce the incidence of radiation pneumonitis [OR=0.23,95%CI (0.12,0.47),P<0.001] and radiation esophagitis [OR=0.10,95%CI(0.05,0.21),P<0.001] of NSCLC patients,the differences were statistically significant. CONCLUSIONS:Both the efficacy and safety of Kanglaite injection combined with radiothreapy in the treatment of NSCLC are superior to radiothreapy alone.

Objective To probe into the effect of systematic nursing model on treatment compliance and clinical efficacy of elderly patients with diabetes. Methods 100 elderly patients with diabetes in our hospital were selected from January 2008 to December 2010.The patients were divided into the study group and the control group randomly,50 cases in each group.The patients in the control group were treated with conventional care model,while the patients in the study group were treated with systematic nursing model.The compliance,clinical treatment effect,and improvement of clinical indicators were compared and ana lyzed in two groups respectively. Results Compared with the control group,treatment compliance indexes such as self-monitoring,diet control,medication compliance,exercise therapy in the study group were significantly improved,the difference was statistically significant.Compared with the control group,the clinical efficacy of patients in the study group was significantly improved.Compared with the control group,the FBG,PBG and HbAlc were improved significantly,the difference was statistically significant. Conclusions Systematic nursing model plays a positive role in promoting treatment compliance and clinical effects of elderly patients with diabetes mellitus.The interventions need to be further enriched and perfected.

Child, Preschool ; Female ; Humans ; Infant ; Male ; Methionine ; blood ; Tyrosine ; blood ; Tyrosine Transaminase ; deficiency ; Tyrosinemias ; blood ; diagnosis ; enzymology ; pathology ; therapy

Objective To evaluate the multi-spiral CT(MSCT)imaging features and classification of renal pelvis carcinoma.Meth-ods 76 patients of renal pelvis carcinoma proved pathologically were analyzed retrospectively,and divided into different types ac-cording to the MSCT features.The MSCT differences for different types were analyzed.Results Most of the tumors showed iso-density or slight hyperdensity (95%)on un-enhanced images,and persistent mild-to-moderate enhancement (91%)in enhanced im-ages.All cases were divided into three types:pelvic mass type in 30 cases (39%),substance invasion type in 25 cases (33%),wall thickening type in 21 cases (28%).All cases were also divided into two types:substance invasion type(25 cases,33%)and renal pelvis type(5 1 cases,67%).The occurrence rate of local low enhancement,whole kidney low enhancement,hydronephrosis,lymph node metastasis and vein tumor thrombus were 80%,20%,48%,52%,1 6% in substance invasion type cases,and 4%,42%, 75%,4%,6% in the renal pelvis type cases,respectivily.Conclusion MSCT multiphase enhancement scanning shows important valuation in the diagnosis and classification of renal pelvis carcinoma.Obvious differences of CT features are showed for different types.The diagnosis accuracy may be improved by the knowledge of substance invasion type.

Objective To observe the outcome of patients with ocular cicatricial pemphigoid (OCP) after amniotic membrane grafting or penetrating keratoplasty.Design Retrospective,noncomparative case series.Participants 3 consecutive OCP patients (4 eyes),were included.Methods For 3 patients (4 eyes) in this study,preoperative visual acuity was from HM/5 cm to HM/10 cm.The symblepharon (gradeⅢ) of 2 patients (3 eyes) were detached and amniotic membrane was transplanted,and bandage contact lens were used till 2 months after operations.The other patient (1 eye) was undergone penetrating keratoplasty with glycerol-cryopreserved cornea because of corneal ulcer and perforation.Main Outcome Measures Visual acuity,recovering of conjunctiva and cornea.Results Am- niotic membrane dissolved about 1 month after operation in 2 patients (3 eyes).Symblepharon changed from gradeⅢto gradeⅡ,visual acuity increased to 0.04-0.05,central corneal epithelium was regenerated significantly,and a little new vessel appeared at corneal lim- bus in 2 patients (2 eyes).The graft deliquesced in the patient with penetrating keratoplasty at 20 days after operation and undergone penetrating keratoplasty again after 1 month.In this patient,the graft molten induced the ocular contents run-off and became eyeball at- rophy eventually.Conclusion Our small sample study shows that the symblepharon detachment and amniotic membrane transplantation is effective for improving visual acuity in OCP with ocular surface dysfunction.However,because of various factors,penetrating kerato- plasty is ineffective for OCP with perforating corneal ulcer.