Synthesis, Antioxidant, and Antileishmanial Activities of New Bis-N-amino Triazole Derivatives

WOS: 000462933000024Synthesis of new bis-N-imino triazole derivatives containing oxadiazole 2, its Mannich base 3, and the S-alkyl group 4 is presented. Bis-N-iminotriazole 2 is formed in the reaction of compound 1 with terephthalaldehyde. Bis N-iminotriazole derivatives containing Mannich base 3 are synthesized by the reaction of morpholine or piperidine with the compound 2. The compound 2 also reacts with alkyl halides (butyl, pentyl, hexyl, heptyl) to give S-alkylated bis-N-imino triazoles 4. Structures of the new compounds are characterized by IR, H-1, and C-13 NMR, and mass spectral data. Antioxidant (FRAP and DPPH assay) and antileishmanial activities tests of the compounds indicate that the products 2, 3a, and 3b demonstrate moderate antioxidant activity in both DPPH and FRAP assays. The antileishmanial tests indicate high activity of the compounds 3a and 3b.Karadeniz Technical UniversityKaradeniz Teknik UniversityThis study was supported by grants from Karadeniz Technical University

Akut Mezenterik İskemi Tanılı Hastanın Operasyon Sonrası Nazogastrik Sondasından Çıkan Ascaris lumbricoides: Olgu Sunumu

PubMed: 24192626[No abstract available

Consistence of miniexon polymerase chain reaction-restriction fragment length polymorphism and single-copy gene sequence analyses in discriminating Leishmania genotypes

PubMedID: 17141456Recently, a new polymerase chain reaction (PCR)-restriction fragment length polymorphism (RFLP)-based assay had been developed using the miniexon sequences for genotyping Leishmania isolates. We had used this method for rapid diagnosis and genotyping of visceral and cutaneous leishmaniasis with the combination of microcapillary cultivation. In this study, we have evaluated this approach by examining genomic DNAs from 47 independent isolates, which were grouped into 19 genotypes of Leishmania subgenus complexes by sequence polymorphism of single-copy genes. Results obtained provide miniexon RFLP configurations specific to Leishmania enriettii, Leishmania tarentolae, and Leishmania gerbilli for the first time. Altogether, 92% of the results from miniexon PCR-RFLP are in agreement with those based on the sequence database of single-copy genes from the same isolates. The miniexon PCR-RFLP method is simple, sensitive, and specific method useful for routine diagnosis of different Leishmania. © 2007 Elsevier Inc. All rights reserved

New Chalcone Derivatives with Schiff Base-Thiophene: Synthesis, Biological Activity, and Molecular Docking Studies

WOS: 000469246900025New thiophene chalcones 3, 6 and thiophene Schiff base-chalcone derivatives 4a-4d, 7a-7d are synthesized. Structures of the compounds are confirmed by H-1 and C-13 NMR, and IR spectra. According to antimicrobial and antileishmanial tests, the compounds 4c-7c demonstrate efficient antileishmanial and antimicrobial activities. Molecular docking studies based on Maestro Molecular Modeling indicate 4c and 7c to be the most potent compounds that are characterized by the least docking score,-10.674 and-10.989 kcal/mol, respectively.Karadeniz Technical UniversityKaradeniz Teknik University [KTU BAP 7222]This study was supported by grants from Karadeniz Technical University (KTU BAP 7222)

Investigation of the presence of cryptosporidium spp. in different water sources in mersin province, Turkey [Mersin ilinde Farkli Su Kaynaklarinda Cryptosporidium spp. Varliginin araştirilmasi]

PubMed ID: 22399176Cryptosporidium is an intracellular protozoon that causes enteritis in human and animals. Contaminated water and food are the major sources for the transmission of oocysts via oral-fecal route. It is reported that the prevalence of cryptosporidiosis is higher in developing countries than developed countries because of inefficient sanitation and disinfection facilities for drinking water. The most frequently detected species is Cryptosporidium parvum leading to high morbidity in healthy subjects and also fatal infections in immunocompromised patients. The acid-fast staining method is widely used in the diagnosis of cryptosporidiosis. Nowadays, Cryptosporidium could easily be detected in water supplies and asymptomatic carriers by molecular techniques to obtain epidemiological data. In this study it was aimed to detect and identify Cryptosporidium oocysts in different water sources in Mersin province, Turkey. A total of 135 water samples (70 taps, 50 wells and 15 sewage) collected from city center (n= 25) and from Tarsus (n= 32), Mezitli (n= 33) and Karaduvar (n= 45) counties between March 2007 and May 2009 were included in the study. Water samples in 10 liter volumes, were filtered by 0.45 urn pore-sized membrane filter vacuum/ pressure pumping technique. Cryptosporidium oocysts in filtrates were detected by modified cold Kinyoun acid-fast stain (MCK) technique and also identified and typed by polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) method. MCK yielded three and PCR yielded seven positive results. All the strains were identified as C.parvum by PCR-RFLP method. All of the three MCK-positive samples were also found positive with PCR, however four PCR positive samples were MCK-negative. Thus, the prevalence of Cparvum was estimated as 5.2% (7/135) in our region. Of seven positive samples, one was a sewage water sample collected from the city center, while the remaining (two tap water, two well water and two sewage water samples) belonged to the samples collected from Karaduvar county, interestingly. It was thought that deficient infrastructure and use of well water as drinking water supply in Karaduvar region might be the cause of high rate of Cryptosporidium (6/45; 13.3%). Further studies which will determine the genotypes and investigate the phylogenetic relationship between these Cryptosporidium spp., might aid to the epidemiology of cryptosporidiosis in our region