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Peripheral retinal non-perfusion and treatment response in branch retinal vein occlusion

International Journal of Ophthalmology(English edition) 2016年第6期9卷 858-862页

作者： Kaveh Abri Aghdam Lukas Reznicek mostafa soltan sanjari Carsten Framme Anna Bajor Annemarie Klingenstein Marcus Kernt Florian Seidensticker Department of Ophthalmology University Eye HospitalMedical School of Hannover Carl-Neuberg-Straβe 1Hannover 30625 Germany Department of Ophthalmology Ludwig Maximilians University Mathildenstr. 8 Munich 80336 Germany Eye Research Center Rassoul Akram Hospital lranUniversity of Medical Sciences Sattarkhan-Niayesh StreetTehran 14456-13131 Iran

AIM： To evaluate the association between the size of peripheral retinal non-perfusion and the number of intravitreal ranibizumab injections in patients with treatment-naive branch retinal vein occlusion （BRVO） and macular edema. METHODS： A total of 53 patients with treatment-naive BRVO and macular edema were included. Each patient underwent a full ophthalmologic examination including optical coherence tomography （OCT） imaging and ultra wide-field fluorescein angiography （UWFA）. Monthly intravitreal ranibizumab injections were applied according to the recommendations of the German Ophthalmological Society. Two independent, masked graders quantified the areas of peripheral retinal non-perfusion. RESULTS： Intravitreal injections improved bestcorrected visual acuity （BCVA） significantly from 22.23± 16.33 Early Treatment of Diabetic Retinopathy Study （ETDRS） letters to 36.23 ±15.19 letters （P〈0.001）, and mean central subfield thickness significantly reduced from 387±115 pm to 321±115 μm （P=0.01）. Mean number of intravitreal ranibizumab injections was 3.61±1.56. The size of retinal non-perfusion correlated significantly with the number of intravitreal ranibizumab injections （R= 0.724, P〈0.001）. CONCLUSION： Peripheral retinal non-perfusion in patients with BRVO associates significantly with intravitreal ranibizumab injections in patients with BRVO and macular edema.

关键词： angiography branch retinal vein occlusion non-perfusion retina wide-field

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Room temperature oxidation of acetone by ozone over alumina-supported manganese and cobalt mixed oxides

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Frontiers of Chemical Science and Engineering 2020年第6期14卷 937-947页

作者： Mehraneh Ghavami mostafa Aghbolaghy Jafar soltan Ning Chen Department of Chemical and Biological Engineering University of SaskatchewanSaskatoonS7N 5 A9Canada Canadian Light Source Inc. University of SaskatchewanSaskatoonS7N 0X4Canada

Volatile organic compounds(VOCs)are among the major sources of air *** ozonation is an efficient process for removing VOCs at lower reaction temperature compared to catalytic *** this study,a series of alumina supported single and mixed manganese and cobalt oxides catalysts were used for ozonation of acetone at room *** influence of augmenting the single Mn and Co catalysts were investigated on the performance and structure of the *** manganese and cobalt single and mixed oxides catalysts of the formula Mnl0%-CoX and Co10%-MnX(where X=0,2.5%,5%,or 10%)were *** was found that addition of Mn and Co at lower loading levels(2.5%or 5%)to single metal oxide catalysts enhanced the catalytic *** mixed oxides catalysts of(Mnl0%-Co2.5%)and(Mn10%-Co5%)led to acetone conversion of about 84%.It is concluded that lower oxidation state of the secondary metal improves ozone decomposition and oxidation of acetone.

关键词： ozone VOC manganese oxides cobalt oxides alumina support

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