AIM:To observe and analyze visual quality changes of the patients with posterior capsule opacification ( PCO ) Nd:YAG laser posterior capsular dissection, including the change of the best corrected vision acuity ( BCVA ) , total high- order aberration ( tHOA ) , and the modulation transfer function ( MTF) .
METHODS:In this prospective observational study, 100 cases of patients ( 100 eyes ) with posterior cataract underwent Nd:YAG laser posterior capsular dissection ( posterior capsular diameter dissected was 5mm or higher). The mean age was 65. 52±7. 01 years old. The change of the BCVA was collected. The tHOA and MTF under the 3mm and 5mm pupil diameter were assessed by iTrace respectively before and after Nd:YAG laser posterior capsular dissection.
RESULTS:All the surgery went well without obvious intraoperative and postoperative complications happened. The preoperative BCVA was 0. 451 ± 0. 023 while the postoperative BCVA was 0. 763±0. 025. The difference of BCVA before and after Nd: YAG laser surgery was statistically significant (P<0. 01). At 3mm pupil diameter, the tHOA preoperative was 0. 551 ± 0. 031 while the postoperative tHOA was 0. 214± 0. 011, the differences were significance (P<0. 05). At 3mm pupil diameter while the spatial frequencies ( 5cpd, 10cpd, 15cpd, 20cpd, 25cpd, 30cpd ) respectively, the MTF tHOA value postoperative (0. 644±0. 023, 0. 49±0. 011, 0. 311±0. 015, 0.202±0. 018, 0. 056±0. 027, 0. 041±0. 011) were significantly higher than that preoperative (0. 401±0. 021, 0. 261±0. 026, 0. 179±0. 012, 0. 108±0. 014, 0. 031±0. 016, 0. 022±0. 021), and the difference has statistical significance (P<0. 05). At 5mm pupil diameter, the tHOA preoperative was 0. 752±0.028 while the postoperative tHOA was 0. 361±0. 014, the differences were significance (P<0. 01). At 5mm pupil diameter while the spatial frequencies ( 5cpd, 10cpd, 15cpd, 20cpd, 25cpd, 30cpd) respectively the MTF tHOA value postoperative (0. 426±0. 027, 0. 209±0. 018, 0. 172±0. 013, 0. 116±0. 015, 0. 049±0. 010, 0. 034±0. 014 ) were significantly higher than that preoperative (0. 234±0. 021, 0. 102±0. 019, 0. 088±0. 016, 0. 058±0. 022, 0. 021±0. 014, 0.016 ± 0. 011 ), and the difference had statistical significance (P<0. 05).
CONCLUSION: Patients with posterior capsule opacification ( PCO ) Nd:YAG laser posterior capsular dissection can help improve BCVA, reduce tHOA, increase MTF tHOA values, and significantly improve visual quality of patients.

Humans ; POEMS Syndrome ; diagnosis ; therapy

Objective To explore the polymorphism distribution of the hormone-sensitive lipase (HSL) gene i6 in Zunyi region. Methods HSL i6 in the Zunyi population was examined with ploymerase chain reaction-single strand conformation polymorphism (PCR-SSCP), and analyzed for its distribution. Results Six different alleles and 11 different genotypes were found in the HSL i6. The PIC is more than 0.7, in which allele 6 and allele 7 were most widely distributed. Conclusion The polymorphism of HSL i6 was identified and the result suggests in Zunyi HSL as a candidate gene of glucose and lipid metabolism.

[Objective]To investigate curative effect for thoracolumbar burst fractures by the method of vertebral pedicle screw fixation applied in the with transpedicular bone graft,and consider its indications.[Method]Thirty cases of thoracolumbar burst fractures were treated by vertebral pedicle screw fixation combining transpedicular bone graft.Among them 22 were male and 8 were famale,age ranged 18-64.All of cases were single segment fractures.The average height of anterior border was 35% before the operation,the average of Cobb's angle was 26?,the percentage of midsagital diameter was 55%.According to Frankel's neurological function classification,preoperative neurological function was Grade A in 4 cases,B in 8,C in 5,D in 6,E in 7.[Result]All cases were followed up for 6 to 30 months.All patients' pain relieved distinctly,the average height anterior border was increased to 97%,the average of Cobb's angle was 3.5?,the percentage of midsagital diameter was 92% postoperatively,showing significant difference(P

[Objective] To study the methods of inducing bone mesenchymal stem cells(BMSCs)of rabbits into chondrocytes in vitro and the interaction of transforming growth factor ?1(TGF-?1),insulin-like growth factor-Ⅰ(IGF-Ⅰ)and basic fibroblast growth factor(bFGF).[Methods]BMSCs of rabbits were primarily cultured and subcultured in vitro,and then divided into four groups according to the difference of factors:group A receiving TGF-?1 and bFGF;group B receiving TGF-?1 and IGF-Ⅰ;group C receiving TGF-?1;group D receiving no cell growth factor.After three weeks all the four groups were detected by methyl thiazolyl tetrazolium(MTT)assay,measurement of glycosaminoglycan(GAG)and immunohistochemistry.[Results]Immunohistochemical detection of collagen Ⅱ was positive in groups A,B and C.The results of the MTT assay and the GAG content in groups A and B were obviously higher than those in groups C and D.[Conclusion]Rabbit BMSCs can be induced into chondrocytes under certain conditions.TGF-?1,IGF-Ⅰ and bFGF have synergy effect in the differentiation from BMSCs into chondrocytes.

Objective To explore the polymorphism distribution of the hormone-sensitive lipase (HSL) gene i6 in Zunyi region. Methods HSL i6 in the Zunyi population was examined with ploymerase chain reaction-single strand conformation polymorphism (PCR-SSCP),and analyzed for its distribution. Results Six different alleles and 11 different genotypes were found in the HSL i6. The PIC is more than 0.7,in which allele 6 and allele 7 were most widely distributed.Conclusion The polymorphism of HSL i6 was identified and the result suggests in Zunyi HSL as a candidate gene of glucose and lipid metabolism.

Objective To study the effects of lentiviral vector of microRNA targeting IGF1R gene on growth of liver cancer cells.Methods The complementary DNA containing both sense and antisense Oligo DNA of the targeting sequence was designed,synthesized and cloned into the pPRIME vector,named pPRIME-IGFIR-miR30-shRNA.The viruses were propagated on 293T cells.Viruses were purified by CsCI gradient according to standard techniques,and functional PFU titers were determined by plaque assay on 293 cells.The effect of pPRIME-IGFIR-miR30-shRNA on IGFIR expression of Hep3B、SMMC7721 cells was detected by RT-PCR and Western blot.The antitumor potential of PRIME-IGFIR-miR30-shRNA to Hep3B、SMMC7721 cells was evaluated by CCK-8 assay and Tunel.Results PRIME-IGFIR-miR30-shRNA was constructed successfully.Functional PFU titers of pPRIME-IGFIR-miR30-shRNA were 4.58?109PFU/ml.PRIME-IGFIR-miR30-shRNA inhibited IGFIR expression and the proliferation of Hep3B、SMMC7721 cells.Conclusions PRIME-IGFIR-miR30-shRNA expressing IGFIR-siRNA can inhibit IGFIR expression and may be used for further investigation of gene therapy of liver cancer.

Cone-Beam Computed Tomography ; methods ; Four-Dimensional Computed Tomography ; methods ; Humans ; Image Processing, Computer-Assisted ; methods ; Magnetic Resonance Imaging ; methods ; Multimodal Imaging ; methods ; Neoplasms ; diagnosis ; diagnostic imaging ; radiotherapy ; Positron-Emission Tomography ; Radiotherapy, Computer-Assisted ; methods ; Tomography, X-Ray Computed

Adolescent ; Adult ; Altitude ; Extremities ; physiology ; Humans ; Male ; Memory ; physiology ; Motor Activity ; physiology ; Movement ; physiology ; Young Adult

Carcinoma, Non-Small-Cell Lung ; diagnostic imaging ; radiotherapy ; Humans ; Image Processing, Computer-Assisted ; methods ; Lung Neoplasms ; diagnostic imaging ; radiotherapy ; Radiotherapy Planning, Computer-Assisted ; methods ; Radiotherapy, Intensity-Modulated ; methods ; Tomography, Spiral Computed ; methods