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Modelling the site index of Pinus pinaster plantations in Turkey using ecological variables

Journal of Forestry Research 2021年第2期32卷 589-598页

作者： cezmi özel ŞükrüTeoman Güner Mehmet Türkkan Selda Akgül Özdemir Şentürk Research Institute for Forest Soil and Ecology EskisehirTurkey Southwest Anatolian Forest Research Institute AntalyaTurkey Poplar and Fast Growing Forest Trees Research Institute KocaeliTurkey Gölhisar Vocational School Burdur Mehmet Akif Ersoy UniversityBurdurTurkey

The determination of site productivity in forest ecosystems plays a crucial role in resource management.This study was carried out to identify relationships between site characteristics and height growth of Corsican maritime pine(Pinus pinaster Ait.)plantations in Turkey.Sixty-nine sample plots>20 years of age were selected from locations with different inclinations,aspects,elevations,slope positions and site class.Soil samples were taken at various depths.Height and age were measured on a dominant tree after felling in each plot.Physical and chemical properties of the soil were determined.Relationships between site index(SI 25)and physiographic factors,climatic attributes as well as soil properties were evaluated using correlation analysis and multiple regression analysis.Site index was significantly related with annual precipitation,mean spring rainfall,rainfall June to September,rainfall of the driest month,length of the dry period,mean maximum temperature,mean temperature of the warmest month,stoniness of the soil,sand,silt,clay,pH,electrical conductivity,and available water capacity.Multiple regression accounted for 57.9%of variations in height growth.The models obtained can be used to determine the site index of potential areas in Turkey for maritime pine.It can be said that the productivity of maritime pine may decline in the future due to global climate change.

关键词： Pinus pinaster Afforestation Ecology Site index

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Involvement and therapeutic implications of airway epithelial barrier dysfunction in type 2 inflammation of asthma

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Chinese Medical Journal 2022年第5期135卷 519-531页

作者： Xiang Dong Mei Ding Jinjin Zhang Ismail Ogülür Yagiz Pat Mübeccel Akdis Yadong Gao cezmi A.Akdis Department of Allergology Zhongnan Hospital of Wuhan UniversityHubei Province Key Laboratory of Allergy and ImmunologyWuhanHubei 430071China Swiss Institute of Allergy and Asthma Research(SIAF) University of ZurichHerman-Burchard Strasse 9DavosSwitzerland.

Type 2 inflammation is a complex immune response and primary mechanism for several common allergic diseases including allergic rhinitis,allergic asthma,atopic dermatitis,and chronic rhinosinusitis with nasal polyps.It is the predominant type of immune response against helminths to prevent their tissue infiltration and induce their expulsion.Recent studies suggest that epithelial barrier dysfunction contributes to the development of type 2 inflammation in asthma,which may partly explain the increasing prevalence of asthma in China and around the globe.The epithelial barrier hypothesis has recently been proposed and has received great interest from the scientific community.The development of leaky epithelial barriers leads to microbial dysbiosis and the translocation of bacteria to inter-and sub-epithelial areas and the development of epithelial tissue inflammation.Accordingly,preventing the impairment and promoting the restoration of a deteriorated airway epithelial barrier represents a promising strategy for the treatment of asthma.This review introduces the interaction between type 2 inflammation and the airway epithelial barrier in asthma,the structure and molecular composition of the airway epithelial barrier,and the assessment of epithelial barrier integrity.The role of airway epithelial barrier disruption in the pathogenesis of asthma will be discussed.In addition,the possible mechanisms underlying the airway epithelial barrier dysfunction induced by allergens and environmental pollutants,and current treatments to restore the airway epithelial barrier are reviewed.

关键词： Airway epithelial barrier Type 2 inflammation Asthma Allergen Environmental pollutants

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Intravitreal aflibercept for ruptured retinal arterial macroaneurysm

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International Journal of Ophthalmology(English edition) 2017年第3期10卷 491-493页

作者： Zafer Oztas Serhad Nalcaci cezmi Akkin Department of Ophthalmology Faculty of MedicineEge University

Dear Editor,Retinal arterial macroaneurysm（RAM）,which usually occurs within the first three orders of arterial bifurcation,is acquired fusiform or saccular dilatations of retinal arterioles^（[1-2]）.Aging,the femal... 详细信息

关键词： ruptured bifurcation fusiform macular gender edema fundus coagulation superficial pigment

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The short-needle intravitreal injection technique

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International Journal of Ophthalmology(English edition) 2016年第6期9卷 929-930页

作者： Zafer Oztas cezmi Akkin Filiz Afrashi Serhad Nalcaci Department of Ophthalmology Ege University Faculty of Medicine

I am Dr. Zafer Oztas, from the Depa^nent of Ophthalmology, Ege University Faculty of Medicine,lzmir, Turkey. I write to present a surgical technique report of the short-needle intravitreal injection technique. The intravitreal injection of anti-vascular endothelial growth factor （VEGF） agents has become a promising treatment option in several ocular pathologies involving neovascularization. Thus, these injections are the most fi＇equent vitreoretinal procedures particularly in developed countries. Although not considered as major ocular surgery, this simple procedure is associated with serious ocular complications, such as endophthalmitis, lens injury, and retinal detachmentI ^-31. Therefore, in our opinion, safety is one of the most important issues for intravitreal injections.

关键词： needle injections option write ocular detachment shorter Turkey inserted longer

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Mesenchymal stem cell therapy in patients with small bowel transplantation:Single center experience

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World Journal of Gastroenterology 2014年第25期20卷 8215-8220页

作者： Sait Murat Do?an Sel?uk K?l?n? Eyüp Kebap?? Cem Tu?men Mustafa ?lmez cezmi Karaca Alp Gürkan Ma?allah Baran Yusuf Kurtulmu? Organ Transplantation Center SB Tepecik Teaching and Research Hospital35121 Izmir Turkey Organ Transplantation Center Caml?ca University Hospital34360 IstanbulTurkey Department of Gastroenterology SB Tepecik Teaching and Research Hospital35121 IzmirTurkey Tissue Typing Laboratory SB Tepecik Teaching and Research Hospital 35121 Izmir Turkey

AIM:To study the effects of mesenchymal stem cell(MSC) therapy on the prevention of acute rejection and graft vs host disease following small bowel transplantation.METHODS: In our transplantation center, 6 isolated intestinal transplants have been performed with MSC therapy since 2009. The primary reasons for transplants were short gut syndrome caused by surgical intestine resection for superior mesenteric artery thrombosis(n = 4), Crohn's disease(n = 1) and intestinal aganglionosis(n = 1). Two of the patients were children. At the time of reperfusion, the first dose of MSCs cultured from the patient's bone marrow was passedinto the transplanted intestinal artery at a dose of 1000000 cells/kg. The second and third doses of MSCs were given directly into the mesenteric artery through the arterial anastomosis using an angiography catheter on day 15 and 30 post-transplant.RESULTS: The median follow-up for these patients was 10.6 mo(min: 2 mo-max: 30 mo). Three of the patients developed severe acute rejection. One of these patients did not respond to bolus steroid therapy. Although the other two patients did respond to antirejection treatment, they developed severe fungal and bacterial infections. All of these patients died in the 2nd and 3rd months post-transplant due to sepsis. The remaining patients who did not have acute rejection had good quality of life with no complications observed during the follow-up period. In addition, their intestinal grafts were functioning properly in the 13th, 25th and 30th month post-transplant. The patients who survived did not encounter any problems related to MSC transplantation.CONCLUSION: Although this is a small case series and not a randomized study, it is our opinion that small bowel transplantation is an effective treatment for intestinal failure, and MSC therapy may help to prevent acute rejection and graft vs host disease following intestinal transplantation.

关键词： Short gut syndrome Small bowel transplantation Mes

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