4 research outputs found

    Numerical Analysis of SDS-PAGE Protein Patterns of Facultative Alkaliphilic Bacillus Species Isolated From Lake Van, Turkey

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    In the present study, seven reference Bacillus species and a total of eighteen new facultative alkaliphilic Bacil-lus strains, isolated from the water of Lake Van and its soil surroundings, were identified using phenotypic charac-teristics and the numerical analysis of whole-cell protein profiles. According to morphological, biochemical and physiological characteristics, it was found that the new isolated strains belonged to Bacillus genus. In addition, the research indicated that SDS-PAGE of polypeptides of whole-cell extracts can provide more valuable taxonomic information than conventional tests based on the pheno-typic characteristics at the species and subspecies levels. Numerical analysis of whole-cell protein profiles of test strains revealed 4 basic clusters (I-IV) at dissimilarity val-ues of 18.9 % or above. The results of numerical analysis confirmed that each cluster had characteristic and distinc-tive protein profiles. Indeed, this study showed that the application of numerical analysis, coupled with the utiliza-tion of a standardized identification system instead of sim-ple quantitative comparison of protein patterns, greatly enhanced the utilization of whole-cell protein profiles for identification of the facultative alkaliphilic Bacillus species

    ORIGINAL ARTICLE A Comparison of Management Planning Principles of Wetland Ecosystem (The Delta of Bendimahi) and Mountain Ecosystem (Mountain of Ispiriz) In The Van Lake Basin/TURKEY

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    ABSTRACT Van Lake Basin which is an important and different part of East Anatolia Region possesses important biological richness due to its geological, climatic, geographical and topographical varieties. In the region, Van Lake which is located between high mountains has led to the formation of a different climate which has resulted in different vegetation and formation of important wetlands. In the basin lies Ispiriz Mountain which is one of the important natural fields and Delta of Bendimahi which is an important part of the basin. Although the flora of Ispiriz Mountain has not been thoroughly studied, 35 of the plants which have been recorded from the area are classified as endemic, whilst 50 of them have been classified as rare plants. 15 of endemic plants have been collected from Ispriz Mountain and introduced to the world. 9 of these plants are endemic plants which have been recorded from a narrow area of Ispiriz Mountain. In the Delta of Bendimahi, there are 188 bird species. 68 of these birds are local, 80 of them migrant, 20 of them winter visitor, 15 of them transit migrant and 2 of them are determined to be coincidental. In this study, together with the socio-economic structure of Delta of Bendimahi which is wetland ecosystem and Mountain of Ispiriz which is mountain ecosystem, the existing relations and problems between natural resources have been determined. According to the gathered information, basic principles of management planning of both regions have been determined. In the presentation, the characteristics of both regions and similarities and differences between the two regions would be touched upon in terms of management of natural resources. It has been determined that the security and economical problems of the region have caused different difficulties in terms of studies which have aimed to determine natural resources in both ecosystems

    Akut Miyeloid Lösemili Yaşlı Hastaların Tedavisinde Azasitidinin Rolü: Retrospektif Çok Merkezli Bir Çalışmanın Sonuçları

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    Amaç: Bu çalışmada, kemik iliğindeki (Kİ) blast oranı >%30 olan olguları da içeren akut miyeloid lösemili (AML) yaşlı hastalarda, azasitidinin (AZA) etkinliğinin ve güvenliğinin araştırılmasını amaçladık. Gereç ve Yöntemler: Bu geriye dönük, çok merkezli çalışmaya, yoğun kemoterapi için uygun olmayan ya da konvansiyonel tedavilere rağmen hastalığı ilerleyen >=60 yaştaki 130 hasta dahil edildi. Bulgular: Ortanca yaş 73 idi, hastaların %61,5'inde Kİ blast oranı >%30 olarak bulundu. Hastalar, ortanca 4 döngü (1-21 aralığında) AZA almıştı. Başlangıç genel yanıt oranı [tam yanıtı (TY)/eksik düzelmenin olduğu TY/kısmi yanıtı içeren] %36,2 idi. Herhangi bir hematolojik düzelme (HD), tüm hastaların %36,2'sinde tespit edildi. HD tedaviye yanıtsız hastaların %27,1'inde de saptandı. Ortanca genel sağkalım, yanıt verenlerde 18 ay, yanıt vermeyenlerde 12 ay idi (p=0,005). Tedaviye yanıtsız hasta grubunda HD'nin, HD olmayanlara kıyasla genel sağkalımı arttırdığı görüldü (ortanca sağkalım 14 aya kıyasla 10 ay, p=0,068). Doğu Kooperatif Onkoloji Grubu performans durumunun =5 döngü) ve herhangi bir HD olması, daha iyi genel sağkalımı öngörüyordu. Yaşın, AML tipinin, Kİ blast yüzdesinin etkisi yoktu. Sonuç: AZA, yaşlı, eşlik eden hastalıkları olan AML'li hastalarda, Kİ blast sayısından bağımsız olarak etkindir ve iyi tolere edilmektedir ve HD'nin, AZA ile tedaviye devam etmek için yeterli bir yanıt olduğu göz önünde bulundurulmalıdır.AmaÇ: Bu Çalışmada, kemik iliğindeki (Kİ) blast oranı >%30 olan olguları da iÇeren akut miyeloid lösemili (AML) yaşlı hastalarda, azasitidinin (AZA) etkinliğinin ve güvenliğinin araştırılmasını amaÇladık.GereÇ ve Yöntemler: Bu geriye dönük, Çok merkezli Çalışmaya, yoğun kemoterapi iÇin uygun olmayan ya da konvansiyonel tedavilere rağmen hastalığı ilerleyen >=60 yaştaki 130 hasta dahil edildi.Bulgular: Ortanca yaş 73 idi, hastaların %61,5'inde Kİ blast oranı >%30 olarak bulundu. Hastalar, ortanca 4 döngü (1-21 aralığında) AZA almıştı. BaşlangıÇ genel yanıt oranı [tam yanıtı (TY)/eksik düzelmenin olduğu TY/kısmi yanıtı iÇeren] %36,2 idi. Herhangi bir hematolojik düzelme (HD), tüm hastaların %36,2'sinde tespit edildi. HD tedaviye yanıtsız hastaların %27,1'inde de saptandı. Ortanca genel sağkalım, yanıt verenlerde 18 ay, yanıt vermeyenlerde 12 ay idi (p=0,005). Tedaviye yanıtsız hasta grubunda HD'nin, HD olmayanlara kıyasla genel sağkalımı arttırdığı görüldü (ortanca sağkalım 14 aya kıyasla 10 ay, p=0,068). Doğu Kooperatif Onkoloji Grubu performans durumunun =5 döngü) ve herhangi bir HD olması, daha iyi genel sağkalımı öngörüyordu. Yaşın, AML tipinin, Kİ blast yüzdesinin etkisi yoktu. SonuÇ: AZA, yaşlı, eşlik eden hastalıkları olan AML'li hastalarda, Kİ blast sayısından bağımsız olarak etkindir ve iyi tolere edilmektedir ve HD'nin, AZA ile tedaviye devam etmek iÇin yeterli bir yanıt olduğu göz önünde bulundurulmalıdır.better OS. Age, AML type, and BM blast percentage had no impact. Conclusion: We conclude that AZA is effective and well tolerated in elderly comorbid AML patients, irrespective of BM blast count, and HI should be considered a sufficient response to continue treatment with AZA

    The Role of Azacitidine in the Treatment of Elderly Patients with Acute Myeloid Leukemia: Results of a Retrospective Multicenter Study

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    Objective: In this study, we aimed to investigate the efficacy and safety of azacitidine (AZA) in elderly patients with acute myeloid leukemia (AML), including patients with >30% bone marrow (BM) blasts. Materials and Methods: In this retrospective multicenter study, 130 patients of &#8805;60 years old who were ineligible for intensive chemotherapy or had progressed despite conventional treatment were included. Results: The median age was 73 years and 61.5% of patients had >30% BM blasts. Patients received AZA for a median of four cycles (range: 1-21). Initial overall response [including complete remission (CR)/CR with incomplete recovery/partial remission] was 36.2%. Hematologic improvement (HI) of any kind was documented in 37.7% of all patients. HI was also documented in 27.1% of patients who were unresponsive to treatment.nMedian overall survival (OS) was 18 months for responders and 12 months for nonresponders (p=0.005). In the unresponsive patient group, any HI improved OS compared to patients without any HI (median OS was 14 months versus 10 months, p=0.068). Eastern Cooperative Oncology Group performance status of <2, increasing number of AZA cycles (&#8805;5 courses), and any HI predicted better OS. Age, AML type, and BM blast percentage had no impact. Conclusion: We conclude that AZA is effective and well tolerated in elderly comorbid AML patients, irrespective of BM blast count, and HI should be considered a sufficient response to continue treatment with AZA
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