The chelating behavior of the thiosemicarbazone derivatives of 2-hydroxy-8-R-tricyclo[7.3.1.0.(2,7)]tridecane-13-one (where R = H, CH3, C6H5) towards Co(II), Ni(II) and Cu(II) has been investigated by elemental analysis, molar conductivity measurements, UV-VIS, IR, ESR spectroscopy and thermal studies. It was deduced from the experiments performed that the ligands coordinate to metal ions in di...

The introduction of new and effective direct-acting antivirals has revolutionised the treatment hepatitis C over last decade. Part 2 this two-part series on management provides an overview these treatments, as well discussing diagnosis harm-reduction strategies.

Chronic hepatitis C virus (HCV) infection is estimated to affect 57 million people globally.1 Despite the availability of safe and effective pan-genotypic direct acting antivirals,2-5 many countries have yet achieve WHO goal HCV elimination by 2030.1

There has been a remarkable transformation in the treatment of chronic hepatitis C in recent years with the development of direct acting antiviral agents targeting virus encoded proteins important for viral replication including NS3/4A, NS5A and NS5B. These agents have shown high sustained viral response (SVR) rates of more than 90% in phase 2 and phase 3 clinical trials; however, this is sligh...

OBJECTIVES In British Columbia (BC), Canada, neuraminidase inhibitors (NIs) were publicly funded during the 2009 A(H1N1)pdm09 pandemic for treatment of high-risk patients and/or anyone with moderate-to-severe illness. We assessed antiviral effectiveness (AVE) against hospitalization in that context. METHODS A population-based cohort study was conducted using linked administrative data. The co...

We have recently identified a new class of compounds that selectively kill cells that express P-glycoprotein (P-gp, MDR1), the ATPase efflux pump that confers multidrug resistance on cancer cells. Several isatin-beta-thiosemicarbazones from our initial study have been validated and a range of analogues synthesized and tested. A number demonstrated improved MDR1-selective activity over the lead,...

New therapeutic options became available in 2015 in the European Union. We present the availability of interferon-free regimens with direct acting antivirals (DAA) in four Central European countries - the Czech Republic, Hungary, Poland and Slovakia - which despite similar historical, geographical and economic situations demonstrate different systems for access to anti-HCV (hepatitis C virus) m...

A series of 2-acylpyridine thiosemicarbazones was evaluated in vitro against a chloroquine-resistant Plasmodium falciparum strain. Antimalarial activity was assessed by the inhibition of uptake of [G-3H]hypoxanthine by the parasites. Among the mono- and disubstituted derivatives tested, 13 of 17 had 50% inhibitory doses of less than 10 ng/ml. Increasing the size of the ring at N4 from four to f...

Thiosemicarbazones and their metal complexes are compounds that possess antitumor, antibacterial, antifungal and antiviral properties. For the foremost majority of cases the activity of the ligand is greatly enhanced by the presence of a metal ion. The most relevant papers recently published are reviewed with an attempt to find a relationship between common structural features and activity.