Five new cyanido-bridged coordination polymers having closed formulae [Ni(hydeten)Au₂(CN)₄] (C1), [Ni(hydeten)₂Au₂(CN)₄]·H₂O (C2), [Cu(hydeten)₂Au₂(CN)₄]·CH₃OH (C3), [Zn(hydeten)₂ Au₂(CN)₄]·H₂O (C4), and [Cd(hydeten)₂Au₂(CN)₄]·H₂O (C5) (hydeten: N-(2-hydroxyethyl)-ethylenediamine) have been prepared and characterized by elemental, thermal, FT-IR and XRD (C3, C4 and C5) measurement techniques. The anticancer, antibacterial and antifungal activities of the complexes are also investigated. The C3, C4 and C5 units according to XRD analyses are linked to each other via –CN–M(hydeten)–NC–Au(1)–CN–M(hydeten)–CN– chains (M^II = Cu, Zn and Cd) and aurophilic interacted –Au(1)(CN)2–Au(2)(CN)2–Au(1)(CN)2–Au(2)(CN)2– zig-zag shaped chains along the a axis. C1, C2 and C4 show significant antifungal effects against several plant pathogenic fungi, while surprisingly C3 exhibits a considerable antibacterial effect against Gram negative E. coli. The studies of the antiproliferative activity on Hela, HT29 and C6 tumor cell lines indicated the anticancer potential of these complexes even at low doses.

Objectives: In this study, we aimed to evaluate the intestinal and urinary microbiota diversity of obese, pre-diabetic, diabetic, and healthy subjects together with their food consumption frequency and investigate the effect on glucose metabolism. Methods: DNA was isolated from stool and urinary samples of fifteen obese, fifteen prediabetics, fifteen type 2 diabetic, and fifteen lean participants by using the quantitative real-time polymerase chain reaction (qPCR) method. The amounts of Bifidobacterium, Bacteroides , and Firmicutes were measured and food consumption frequency was answered by all participants through a questionnaire. Results: The levels of Bifidobacterium in fecal microbiota were significantly higher in type 2 diabetic patients compared with lean (p=0.034), prediabetic (p=0.009), and obese participants (p=0.012). However, the levels of Bifidobacterium in urinary microbiota were decreased in obese, prediabetic, and type 2 diabetic subjects as controls (p=0.048; p=0.038; p=0.015 respectively). Additionally, Bacteroides / Firmicutes ratio decreased in type two diabetic patients compared with lean subjects and had a negative correlation with BMI in prediabetic subjects. Food consumption frequency illustrates that lean subjects have unhealthy eating habits. Conclusions: Urinary microbiota could be considered in the future context of a potential biomarker in the progress of type 2 diabetes and obesity.

Objectives: The presence of live SARS-CoV-2 viruses in the fecal specimens and the positive results for SARS-CoV-2 RNA in gastrointestinal samples after respiratory specimens had become negative indicate that there may be a risk of transmission of the disease not only through the respiratory tract but also through the fecal-oral route. The study aim is to determine the time period that the SARS-CoV-2 virus remains in the fecal specimens of discharged COVID-19 patients to reveal the time interval in which the risk of transmission continues. Methods: In 65 patients hospitalized with a COVID-19 diagnosis, the viral RNA was isolated from the supernatant of the stool sample using CVXTM viral RNA extraction kit. The extracted RNAs from the stool samples were detected using a commercial RT-PCR method. Results: Positive results were obtained in the stool samples in eight of sixty-five patients and the presence of SARS-CoV-2 in these patients was detected for up to three weeks. Conclusions: By determining the residence time of SARS-CoV-2 virus in stool samples of discharged COVID-19 patients, the time interval during which the possibility of transmission risk continues has been revealed. The findings of the study could prove beneficial in comprehending the risks of transmission and translating them into preventative measures.