BackgroundIn an ideal eye there would be no light scattering at all,but the eye media is not optically ideal.Intraocular straylight causes a veil of light and reduction in the contrast of the retinal image and thus decrease the quality of vision.ObjectiveThe present study was to investigate the repeatability and reproducibility of C-Quant straylight meter( Oculus,Germany)in measuring retinal straylight of myopia and post-laser in situ keratomileusis(LASIK) corneas.MethodsThis is a prospective research.The consecutive 35 eyes of 21 myopic patients and 34 eyes of 22 patients who received LASIK were included in this trail.Retinal straylight was measured for 7 times at a period of time and analyzed quantificational to evaluate the repeatability of measurement.Thirty-eight eyes of 19 patients were measured again at 3-7 days for 3 times at a period of time to assess the reproducibility of C-Quant straylight meter.The mean standard difference (SD) and coefficient of variation (CV) were used as the credibility evaluation.This clinical study complied with Helsinki Declaration and the informed consent was obtained prior to the medical procedure.ResultsThe straylight Log(s) of 7 times measurement were all less than 0.95.The mean Log(s) were 0.92±0.12 and 0.93±0.17 respectively in myopia group and post-LASIK group,without statistically significant differences among 7 times measurement( F=0.335,P=0.812;F=1.000,P=0.409).The mean SD for the 7 times measurement was 0.07 Log units.SD and CV increased with the number of measurements.The differences of mean SD and CV between 3 times result and 6 times result were significant different (t =-2.080,P =0.045;t =-2.190,P =0.035 ).No difference was found between different time periods( t =-0.531,P=0.598 ).The difference of the results between two measurements from the same patient was 0.013.ConclusionsC-Quant is a noncontact,noninvade,rapid and convenient method for the measurement of straylight in myopia and post-LASIK eyes due to the high repeatability and reproducibility.

Objective To construct five shRNA-expression plasmids and to investigate the expression of Smad2 in TGF-?/ Smads signal transduction treated with shRNA-expression plasmid.Methods Five shRNA-Smad2 DNA sequences from mRNA sequence of mouse Smad2 gene were designed and synthesized.DNA oligonucleotides encoding an appropriate shRNA were inserted to shRNA expression vector respectively.Five shRNA-Smad2 expression plasmids were obtained and then transfected into NIH/3T3 cells.The suppressed expression of Smad2 was assessed by RT-PCR and Western-blotting.Results The shRNA-expression plasmid numbered 2.4 could markedly reduce the expression of Smad2.The suppression effect of the RNAi-pool composed of four different plasmids was more obvious than that of any single.Conclusion The shRNA-expression plasmids were successfully constructed,which could specifically and effectively suppress the expression of Smad2.The method of using a mixture of RNAi plasmids to improve the RNAi efficiency was established.

Objective To evaluate the value of sonourethrography in the diagnosis of dysuria after bipolar transurethral plasmakinetic prostatectomy. Methods Sixty male patients with dysuria after bipolar transurethral plasmakinetic prostatectomy underwent sonourethrography and re-operation.The clinical data of these patients were reviewed. Results The sonourethrographic findings were similar with the operative findings in 57 cases.In the 60 cases,there were 11 cases with bladder neck closure,10 cases with bladder neck stricture,30 cases with urethral stricture (16 located at membranous urethra,12 located at pars cavernosa urethra and 2 in external orifice of urethra),5 cases with prostate remnant,1 case with calculi in prostatic urethra,2 cases with dysfunction of detrusor of bladder and 1 case with flap of internal urethral orifice,Conclusions Sonourethrography could be a reliable diagnostic method for dysuria after bipolar transurethral plasmakinetic prostatectomy.It may be helpful for clinical treatment.

After more than3 years of pilot (since 2010), standardized training of resident physicians in Shanghai has made great progress, however, it still needs to be improved. Cerebral and spinal vascular diseases are main types of neurological diseases and they seriously influence people's life and health. Interventional neuroradiology plays an important role in the diagnosis and treatment of cerebral and spinal vascular diseases. However, in the current residency training system in Shanghai or other provinces of China, the training of interventional neuroradiology is not included. In this paper, the authors analyzed the important role of interventional neuroradiology in diagnosis and treatment of cerebral and spinal vascular disorders and discussed the feasibility, method, and time arrangement of including interventional neuroradiology curriculum into the schedule of neurology standardizedresidency training and hoped to provide reference for the relevant departments to formulate a future policy.

Objective To explore the effect of psychological behavioral intervention for the parents of the inpatients with schizo-phrenia .Methods 76 firstly hospitalized cases of schizophrenia were randomly divided into the psychological behavior intervention group and the routine group with 38 cases in each group .The parents in the intervention group were implemented the psychological behavior intervention .All patients were assessed with the Family Concern Index Questionnaire (APGAR) ,the Brief Psychiatric Rat-ing Scale(BPRS) and Inpatient Psychiatric Rehabilitation Outcome Scale (IPROS) .Results The obtained family support level in the intervention group was significant higher than that in the routine group (P<0 .01);the scores of BPRS and IPROS in the interven-tion group were significantly lower than those in the routine group(P<0 .01);the total APGAR scores were negatively correlated with the total BPRS scores(r= -0 .496 ,P<0 .01) and the total IPROS scores(r= -0 .453 ,P<0 .01) .Conclusion The psycho-logical behavior intervention conduces to guide the parents of firstly hospitalized inpatients with schizophrenia to provide the effec-tive family support to the patients for promoting their rehabilitation .

BACKGROUND: Individual three-dimensional (3D) scaffolds can be constructed by 3D printing via Computer Aided Design based on the given anatomical measurements of related tissues. A rapid and accurate reconstruction of bone, cartilage, muscle and vessel also can be achieved by 3D printing; however, many problems still remain unsolved.OBJECTIVE: To summarize the principle and classification of 3D printing, the classification, characteristics and histocompatibility of scaffolds through reviewing the articles addressing 3D printing applied in bone tissue engineering,thereby providing theoretical foundation for the study on the construction of tissue-engineered bone.METHODS: PubMed and CNKI databases were retrieved for the literatures regarding the application of 3D printing technology in bone tissue engineering published from January 2001 to January 2017 using the keywords of three-dimensional printing, rapid prototyping manufacturing, bone tissue engineering in English and Chinese,respectively. Finally, 30 articles were reviewed and discussed in accordance with the inclusion and exclusion criteria.RESULTS AND CONCLUSION: The microstructures of normal tissues can be reconstructed and seed cells are printed on the 3D scaffolds synchronously by 3D printing technology. Moreover, the scaffold degradation and cell differentiation are synchronous, which contributes to tissue repair. Biological ceramics have been widely used in bone tissue engineering because of its good biocompatibility and mechanical properties. However, the urgent problems such as angiogenesis and cellular signal transduction still need to be addressed.

Objective To construct an eukaryotic expression vector with human adipose most abundant gene transcript 1 (APM1) gene,and to investigate the transfection and expression of pCDEF-APM1 eukaryotic expression plasmid in HEK293 cells.Methods pCDEF-APM1 eukaryotic expression plasmid was constructed by DNA recombinant method.Expression vector pCDEF-APM1 was transfected into HEK293 cells with Effectene reagent.The level of human adiponectin protein in the supernatant of cell culture media was detected with double antibody sandwich ELISA.Results The sequence of DNA fragment from constructed pCDEF-APM1 plasmid was identical to that published in GenBank.There was raised human adiponectin protein level in culture supernatant of HEK293 cells tnmsfected with pCDEF-APM1.Conclusion The pCDEF-APM1,an eukaryotic expression plasmid for APM1 gene is successfully constructed.High protein expression of adiponectin can be obtained in HEK293 cells transfected with pCDEF-APM1 eukaryotic expression plasmid.

Objective Through the research and analysis of guangdong medical college affiliated hospital orthopaedic hospitalized patients with a diagnosis of osteoporosis in Zhanjiang,this paper provide theoretical basis for the prevention of osteoporosis frac-ture.Methods The elderly aged over 40 years old,living in this area for a long time.Data was collected from August 2012 to Feb-ruary 2014,hospitalized patients in guangdong medical college affiliated hospital were diagnosed with osteoporosis.Contents include general situation survey,medical examination,venous blood tests and bone mineral density testing.Results Fracture group average age is older than the non fracture group;the fracture group lumbar spine bone mineral density(LSBMD)and femoral neck bone min-eral density(FNBMD)T value and Z value and serum calcium group is greater than the fracture and the differences were statistically significant(P <0.05).Fracture group in gender divided into two groups for comparison,in which women older than men,and the difference was statistically significant(P <0.05),male LSBMD T and Z values and FNBMD T value is greater than the female and the difference was statistically significant(P <0.05).According to the 10 year age group,Each age group compared with the frac-ture number and non fracture number,in the age group of 70-80 fracture number were the most;All age groups in LSBMD,FNB-MD,serum calcium(Ca)and VitD compared,non fracture group is most higher than that of fracture group.The influence factors of the fractures for non conditional Logistic regression analysis,age,LSBMD,FNBMD T value increased were risk factors for fracture, VitD,FNBMD,LSBMD T value increased were protective factors of fracture.Conclusion Need as soon as possible to prevent osteo-porosis,especially before the age of 40,try to improve the peak bone density,to prevent the occurrence of osteoporosis in the future.

Volatile oil components and the contents and types of amino acid in spica of Prunella vulgaris were analysed by GC-MS and amino acid analyzer. Esters, fatty acids, aromatic hydrocarbon, ketone and several alcohol compounds were identified by mass spectrum comparison. In these ingredients, beta-ionone smelled aroma of cedar, raspberry, nerolidol showed weak sweet soft orange blossom flavor, neroli tasted sweet and fresh, nerolidol tasted sweet with light aroma of wood, hexadecanal showed a weak aroma of flowers and wax, alpha-sinensal had rich and fresh sweet orange flavor. To some extent, these types of aromatic substances can affect the taste of herbal tea or decoction made of Spica Prunellae. Among amino acids detected, natural amino acids accounted for a larger proportion, and those natural amino acids showed bitterness, slight bitterness, sourness (freshness), sweetness, slight sweetness, sourness (slight freshness). The results indicated that bitter and slightly bitter amino acids have the greatest impacts on the sense of Spica Prunellae.
Amino Acids ; analysis ; Gas Chromatography-Mass Spectrometry ; Oils, Volatile ; analysis ; Prunella ; chemistry ; Taste

This article reports two children with hereditary hemorrhagic telangiectasia (HHT). Patient 1 was a boy aged 12 years and was admitted due to intermittent cough and wheezing for more than 10 years. This boy and his mother and grandmother had a history of epistaxis. The boy had a history of the rupture of cerebral arteriovenous malformations. Gene detection showed a heterozygous mutation, c.277C>T(p.Arg93*), in the ENG gene. Patient 2 was a girl aged 13 years and was admitted due to cyanosis of lips for more than 1 year. The girl had a history of recurrent epistaxis and the manifestations of severe decline in pulmonary diffuse function, pulmonary hypertension, dilation of blood vessels at the distal end of lungs, and small arteriovenous communications in both lungs. Children with HHT often lack typical respiratory symptoms, which may lead to missed diagnosis and misdiagnosis in the early stage. Pulmonary computed tomography or right cardiac acoustic contrast can help with the diagnosis of HHT, and gene detection can improve the early diagnostic rate of this disease.
Adolescent ; Child ; Female ; Humans ; Lung ; Male ; Mutation ; Telangiectasia, Hereditary Hemorrhagic ; Tomography, X-Ray Computed