1.Recent progress on study of the selection of intraocular lens in the bilateral sequential cataract surgery
Chinese Journal of Experimental Ophthalmology 2014;32(6):560-562
Bilateral sequential cataract surgery is very common in clinical,but the ophthalmologists often ignore how to choose the timing of operation and whether the first eye can be used to improve the intraocular lens (IOL) power calculation for the second one.Despite the refinements in IOL selection with the use of third-generation IOL formulas,5% of eyes still result in a postoperative refractive surprise of ± 1.00 D or more.This paper introduced the methods of using refraction error of the first eye to improve the IOL power calculation for the second eye,and the refractive error of the second eye can be improved by modifying the IOL power to correct up to 50% of the error from the first eye in details.Because of the variation of the postoperative refractive surprise within a month,the interval of three to four weeks between two eyes cataract surgery is highly recommended.These conclusions may provide the advantageous guidance for us in the selection of IOL in bilateral cataract surgery.
2.Optimization of coding sequences and expression of antimicrobial peptide magainin II in Escherichia coli and Pichia pastoris.
Yuhai CHEN ; Qinghuang CHEN ; Ke CHEN ; Tingzhou ZHANG ; Jilong CHEN
Chinese Journal of Biotechnology 2014;30(4):615-624
The antimicrobial peptide magainin II is expressed in the skin of the African clawed frog, Xenopus laevis, and exhibits a broad spectrum of antimicrobial activity as well as tumoricidal properties at low concentrations. In addition, magaininII plays a synergistic role during antimicrobial and tumoricidal processes with another antimicrobial peptide PGLa that is also expressed in Xenopus laevis. The optimized cDNA sequence of magainin II and magainin II-PGLa hybrid peptide according to E. coli or Pichia pastoris codon usage frequency were synthesized and sub-cloned into prokaryotic expression vector pGEX and Pichia pastoris secreted expression vector pPIC9k. The resulting recombinant plasmids were named as pGEX-magainin II and pPIC9k-magainin II-PGLa. The GST-magainin II fusion protein was highly expressed in E. coli. Furthermore, magainin II was successfully purified by digestion with PreScission Protease to cleave the GST tag. Additionally, our data obtained from the ELISA revealed that magainin II -PGLa hybrid peptide was successfully expressed in Pichia pastoris. These experiments establish a useful system for further studies of these antimicrobial peptides.
Animals
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Escherichia coli
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metabolism
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Genetic Vectors
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Magainins
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biosynthesis
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genetics
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Peptides
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genetics
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metabolism
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Pichia
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metabolism
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Plasmids
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Recombinant Fusion Proteins
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biosynthesis
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genetics
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Xenopus Proteins
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biosynthesis
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genetics
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Xenopus laevis
3.Treatment of Post-endoscopic Sphincterotomy Bleeding
Chinese Journal of Gastroenterology 2016;(1):59-61
In recent years,endoscopic technique has become a basic procedure for the diagnosis and treatment of biliary and pancreatic diseases,thus the procedure-related complications of ERCP and endoscopic sphincterotomy(EST) become prominent day by day. Post-EST bleeding is one of the most serious complications of the procedure,and its first line treatment involves a variety of endoscopic techniques,such as epinephrine or fibrin glue local injection,electric coagulation and heat probe,clamps and covered metal stents. If these are not successful,transcatheter arterial embolization or surgical operation should be considered. In this article,the above-mentioned treatment modalities of post-EST bleeding were reviewed.
4.Advances in pathogenesis, diagnosis and treatment of paroxysmal nocturnal hemoglobinuria
Journal of Leukemia & Lymphoma 2016;25(4):252-256
Paroxysmal nocturnal hemoglobinuria (PNH) is a rare disorder of hematopoietic stem cells due to acquisition of somatic mutations.Somatic mutations in phosphatidylinositol glycan class A (PIGA) account for intravascular hemolysis and other PNH manifestations,but the pathophysiology of clonal expansion of PNH cells cannot be elucidated clearly.PNH is closely related to aplastic anemia and myelodysplastic syndromes.Today,the gold standard for PNH is flow cytometry to detect the absence or severe deficiency of glycosylphosphatidylinositol (GPI)-anchored proteins on white and red blood cells.However,PNH diagnosed by phenotype is a group of heterogeneous disease in pathogenesis.Eculizumab,a first-in-class monoclonal antibody that inhibits terminal complement,is highly effective in stopping intravascular hemolysis and improving quality of life.Further research on the pathogenesis of PNH would be helpful to understand the underlying reasons for PNH phenotype cells in different patients,improve differential diagnosis and more targeted and specific therapy.Research progress in recent years will be reviewed in this article.
5.Application of neutrophil CD64 on the diagnosis and treatment of infectious diseases
Chinese Journal of Laboratory Medicine 2016;39(5):340-343
The early diagnosis of serious infection is very important since the fatality rate is quite high.Traditional diagnostic methods of infection includes procalcitonin,leukocyte count,CRP and so on,of which the sensitivity and specificity is not able to achieve the early diagnosis.Recently,neutrophil CD64 has been widely concerned for the high sensitivity and specificity in early diagnosis of bacterial infection.Flow cytometry is applied to detect neutrophil CD64 in early diagnosis of infectious diseases including respiratory infection,septicemia,neonatal intensive infection,burn and postoperative infection.What's more,the sensitivity and specificity can be further improved if neutrophil CD64 was combined with other inflammatory markers.Thus,neutrophil CD64 detected by flowy cytometry plays an important role in the diagnosis,monitoring,prognosis,therapeutic effect evaluation of infectious diseases.
6.Effect of audio training on executive dysfunction in patients with stroke
Jingjing ZHANG ; Changxiang CHEN
Chinese Journal of Cerebrovascular Diseases 2016;13(7):356-359
Objective To investigate the effect of Tomatis audio training on executive dysfunction in patients with stroke. Methods A total of 80 stroke patients from the Rehabilitation Branch,Tangshan Worker′s Hospital were enrolled prospectively. They were divided into either a music group or a control group (n = 40 in each group)according to random number table. On the basis of conventional rehabilitation training,both groups received music training. The patients of the control group received conventional music training (conventional frequency music without audio processing);the patients of the music group received Tomatis audio training. Both groups were trained at the same time,once a day for 60 -90 min,and they were trained for 2 cycles. The first cycle was 14 days and the second one was 10 days,the interval of the 2 cycles was 30 days (a total of 54 days). The Behavioral Assessment of Dys-executive Syndrome (BADS)was used to assess their executive dysfunction before and after music training. Results The 6 sub-projects of BADS in the music group after music training:the rule shift cards test,action program test,key seek test, temporal judgment test,zoo map test,modified six elements test,and total standard score (median 75 ])2. 0 (1. 2,2. 7),2. 0 (1. 0,2. 0),2. 0 (1. 0,2. 0),2. 0 (1. 0,2. 0),2. 0 (2. 0,2. 0),2. 0 (2. 0,3. 0),and 11. 0 (11. 0,12. 0),respectively). They were compared with those of the control group (1. 0[1. 0,2. 0],1. 0[1. 0,2. 0],1. 0[1. 0,2. 0],1. 0[1. 0,2. 0],1. 0[1. 0,2. 0],1. 0[1. 0,1. 0],and 8. 0[8. 0,10. 0],respectively]. There were significant differences between the 2 groups (all P < 0. 05). Conclusion Tomatis audio training may effectively improve the executive function in patients with stroke.
7.Smart library from the angle of its service
Chinese Journal of Medical Library and Information Science 2016;25(8):58-61
Smart library is an advanced stage in the development of library and service is the key content in aca-demic library.The service model of smart library was described from the angle of information service, cloud service and Library 3 .0 with the connotation of smart library and the service function of academic library as the starting points.in an attemp to provide reference for academic libraries to establisht their target of smart library construction.
8.Knowledge mapping-based analysis of hot spots and frontiers in studies on domestic hospital libraries
Chinese Journal of Medical Library and Information Science 2016;25(8):19-23
Objective To study the hot spots and frontiers in studies on domestic hospital libraries by visualization analysis.Methods A total of 2820 CNKI-covered papers on hospital libraries from 2005 to 2015 were analyzed u-sing CiteSpace 3.8.Results The clustering map of key words in papers on hospital libraries was plotted, the fre-quency of key words and centrality were listed, and the burst terms were mapped.Conclusion The hot spots in studies on hospital libraries are readers service, network and resources development.Subject service and digital li-brary are the frontiers.Review of hospital class plays an important role in promoting the construction of hospital li-braries.Service of hospital libraries is focused on the construction of key subjects in hospitals.
9.Research Progress of Acupuncture-moxibustion in Treating Toothache
Shanghai Journal of Acupuncture and Moxibustion 2015;(5):483-486
Objective To discuss the clinical efficacy and mechanism research progress of acupuncture-moxibustion in treating toothache, for providing better treatment methods and clinical evidence.Method Taking “toothache”, “acupuncture”, “moxibustion”, “acupoint” as the key terms, clinical research literatures about acupuncture-moxibustion in treating toothache during the recent 10 years were retrieved by using computer, and were then arranged and analyzed.Result There is a variety of acupuncture-moxibustion methods in treating toothache, and the methods are effective.Conclusion Acupuncture-moxibustion therapy is effective in treating toothache, and deserves a large-sample multi-centered randomized research.
10.Study on the treatment of chloasma with traditional Chinese medicine regulating menstruation
International Journal of Traditional Chinese Medicine 2015;(5):475-477
Chloasma is a kind of skin disease with pigmentation on the face, which can be frequently seen in child-bearing age women. The disease is caused by Zangfu dysfunction, Qi and blood deficiency. For women, the generation of chloasma is closely related to their menstruation. Regulating the menstrual function with traditional Chinese medicine and balancing the body's internal environment can be very useful for achieving the balance between Yin and Yang within Zangfu, and regulating Qi and blood, which will not only desalt pigment, but also can improve the symptom related to menstruation with low recurrence rate after drug withdrawal. This method can be used alone or with other methods in clinic, has achieved significant effect.