1.Clinical effect of correcting the sunken upper eyelid by upper eyelid orbital fat reset
Ying LIU ; Xiaohu HE ; Wei SHAO
Chinese Journal of Medical Aesthetics and Cosmetology 2016;22(4):215-217
Objective To discuss the surgical methodology for sunken upper eyelid and its curative effect by eyelid orbital fat reset.Methods 26 patients with the sunken upper eyelid were operated,in which blepharoplasty incision was used to open musculus orbicularis oculi and septum orbitale,dissected levator,displaced orbital fat were extended and replaced to the sunken region of upper eyelid,to mild-to-moderate ptosis evator tendon membrane folding suture was carried out at the same time and the wound was routinely sutured through 7-0 nylon thread.Results All cases were followed up for 12 months after operation.There was no obvious complication occurred,All cases got ideal outcomes,with smooth and symmetry lid folds.Conclusions The postoperative effects of upper eyelid orbital fat reset for correction of eyelid sunken are satisfactory,without inequality complications,and therefore it is worth promoting.
2.Functional cell surface display of endo-beta-1, 3-1, 4-glucanase in Lactococcus lactis using N-acetylmuraminidase as the anchoring motif.
Xiaohua LI ; Xinfeng HUANG ; Xiaohu SHAO ; Lin LI
Chinese Journal of Biotechnology 2009;25(1):89-94
In this report, we utilized N-Acetylmuraminidase (AcmA) to develop a whole-cell catalyst of endo-beta-1, 3-1, 4-glucanase in Lactococcus lactis. The PCR-amplified full-length acmA gene from L. lactis MB191 was fused with the green fluorescent gene (gfp), followed by ligating the chimeric acmA-gfp into the Escherichia coli-L. lactis shuttle expression vector pMG36k, yielding the recombinant plasmid pMB137. SDS-PAGE analysis showed that the constitutive expression of AcmA-GFP fusion protein in the L. lactis AS1.2829 construct harboring pMB137 (named MB137), with the predicted Mr of 74 kD. Western blotting, GFP specific fluorescence intensity assays and flow cytometry analysis confirmed that AcmA-GFP was immobilized on the outer membrane, which constituted approx. 35% of the total intracellular fusion protein. Furthermore, acmA was fused with a PCR-amplified encoding fragment of the endo-beta-1, 3-1, 4-glucanase gene (gls) from Bacillus sublitis BF7658, resulting in the recombinant plasmid pMB138. By transferring pMB138 into L. lactis AS1.2829, the derived L. lactis MB138 expressing the AcmA-GLS fusion enzyme exhibited a distinct whole-cell glucanase activity (by 12 U/mL) compared to the control strain, indicating AcmA had served as a functional anchoring motif to immobilize the heterologous enzyme on the cell surface of L. lactis.
Electroporation
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Endo-1,3(4)-beta-Glucanase
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genetics
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metabolism
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Escherichia coli
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genetics
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metabolism
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Glycoside Hydrolases
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genetics
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metabolism
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Green Fluorescent Proteins
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genetics
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metabolism
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Lactococcus lactis
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enzymology
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genetics
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Recombinant Fusion Proteins
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genetics
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metabolism
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Recombination, Genetic