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Samaneh Heidarpourian, Minoo Shahidi, Ahmad Kazemi, Mohsen Razavi, Ali Basi, Parisa Hayat,
Volume 9, Issue 5 (2-2016)
Abstract

Background and Aim: Chronic lymphocytic leukemia (CLL) is a lymphoprolifrative disorder, which is very heterogeneous in prognosis. Therefore, the analysis of the prognostic factors should be very helpful in diagnosing patients with a poor prognosis. The aim of this study was to determine the relationship between circulating Endothelial cells number with VWF levels along with the other hematological findings in CLL.

Materials and Methods: Peripheral blood samples were obtained from 30 CLL patients admitted to the hematology department of Firozgar hospital and 30 healthy subjects. The levels of CEC were measured by the presence of CD34 and VWF markers, and absence of CD45 marker, using flow cytometry. VWF levels was evaluated by ELISA.

Results: The CEC levels were significantly higher in blood of the CLL patients (0.64%), when compared to the controls (0.12%, P=0.002). The levels of plasma VWF were higher among high grade patients, when compared to controls and patients in lower grades. There was a negative correlation between CEC levels, and Hb concentration in the patients group (r=-0.47, P=0.01).

Conclusion: Although the levels of both CEC count and plasma VWF in patient with high grade CLL were increased when compared to patients with low grade, there was no significant correlation between these two parameters.


Hanie Pooshideh, Jalal Jafarzade, Ali Heidarpour, Mojtaba Taghizade Armaki, Saeid Mahdavi Omran, P.h.d Firoozeh Kermani, Mohsen Karami,
Volume 18, Issue 2 (12-2024)
Abstract

Background and Aim: Cockroaches are potential carriers of a wide range of pathogenic microorganisms (fungi, bacteria and parasites). Considering the importance of these insects in the transmission of pathogenic fungi and their impact on the health of hospitalized people, the aim of this study was isolation and molecular identification of pathogenic fungi from the external and internal surfaces of cockroaches collected from three educational hospitals of Babol city, Mazandaran Province, Iran.
Materials and Methods: Cockroaches were caught by a sterile manual method and after washing to remove surface contamination with 70% ethyl alcohol for 2min, 100 µL of the solutions from the external and internal parts of cockroaches were cultured on Sabouraud’s dextrose agar with 0.05% chloramphenicol and incubated at 30 °C for 3 weeks. The different yeast and filamentous colonies were distinguished using standard mycological methods. The PCR-RFLP method and the restriction enzymes Msp I and Bln I were used for the differentiation of Candida species, and the restriction enzyme Alw I for Aspergillus species.
Results: A total of 85 fungi species/genera were isolated from all 50 studied cockroaches, including German cockroaches 15 (30%), American cockroach 20 (40%) and brown 15 (30%), which included 52 isolates from external surfaces (61%) and 33 isolates from internal surfaces of cockroaches (39%). Of the total number of 49 filamentous fungi, Aspergillus fumigatus 16 (32.65%) and out of the total number of 36 yeasts identified, Candida albicans 14 (38.89%) were the most common fungi isolated in this study. Other filamentous fungi and yeasts isolated from cockroaches include Aspergillus niger 11 (22.45%), Aspergillus flavus 8 (16.32%), Penicillium 4 (8.2%), Rhizopus 3 (6.1%), Cladosporium 3 (6.1%), Mucor 2 (4%), Alternaria 2 (4%), Candida parapsilosis 6 (16.67%), Candida krusei 12 (33.33%), Candida glabrata 3 (8.33%), and Candida tropicalis 1 (2.78%) were isolated.
Conclusion: Considering the isolation of several fungal species from cockroaches and their importance in the possible mechanical transmission of common fungal infections in hospitals, these insects can be a source of continuous transmission of infection, if there is no regular preventive disinfection of the hospital environment.


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