Search results for "ADAM"

Staphylococcus aureus α-Toxin’s Close Contacts Ensure the Kill

2018

The membrane pore-forming α-toxin is an important virulence factor of Staphylococcus aureus. Target cells can remove pores from their surface, but recent work shows that α-toxin may undermine this self-defense by clinging to epithelial cell junctions. The findings could lead to the development of novel remedies against S. aureus infections.

Single-electron self-exchange between cage hydrocarbons and their radical cations in the gas phase.

2010

We show that the radical cations of adamantane (C(10)H(16)(*+), 1H(*+)) and perdeuteroadamantane (C(10)D(16)(*+), 1D(*+)) are stable species in the gas phase. The radical cation of adamantylideneadamantane (C(20)H(28)(*+), 2H(*+)) is also stable (as in solution). By using the natural (13)C abundances of the ions, we determine the rate constants for the reversible isergonic single-electron transfer (SET) processes involving the dyads 1H(*+)/1H, 1D(*+)/1D and 2H(*+)/2H. Rate constants for the reaction 1H(*+)+1D 1H+1D(*+) are also determined and Marcus' cross-term equation is shown to hold in this case. The rate constants for the isergonic processes are extremely high, practically collision-co…

Sortase A Inhibitors: Recent Advances and Future Perspectives

2015

Here, we describe the most promising small synthetic organic compounds that act as potent Sortase A inhibitors and cater the potential to be developed as antivirulence drugs. Sortase A is a polypeptide of 206 amino acids, which catalyzes two sequential reactions: (i) thioesterification and (ii) transpeptidation. Sortase A is involved in the process of bacterial adhesion by anchoring LPXTG-containing proteins to lipid II. Sortase A inhibitors do not affect bacterial growth, but they restrain the virulence of pathogenic bacterial strains, thereby preventing infections caused by Staphylococcus aureus or other Gram-positive bacteria. The efficacy of the most promising inhibitors needs to be com…

Cyclodextrin and Adamantane Host-Guest Interactions of Modified Hyperbranched Poly(ethylene imine) as Mimetics for Biological Membranes

2011

Del terrorismo a la guerra

2004

CCDC 957920: Experimental Crystal Structure Determination

2013

Related Article: Borys Ośmiałowski, Erkki Kolehmainen, Krzysztof Ejsmont, Satu Ikonen, Arto Valkonen, Kari Rissanen, Nonappa|2013|J.Mol.Struct.|1054|157|doi:10.1016/j.molstruc.2013.09.047

CCDC 854392: Experimental Crystal Structure Determination

2012

Related Article: B.Os'mialowski, E.Kolehmainen, R.Dobosz, R.Gawinecki, R.Kauppinen, A.Valkonen, J.Koivukorpi, K.Rissanen|2010|J.Phys.Chem.A|114|10421|doi:10.1021/jp1063116

Determining a healthy reference range and factors potentially influencing PRO-C3 – A biomarker of liver fibrosis

2021

Background & Aims Progressive fibrosis has been identified as the major predictor of mortality in patients with non-alcoholic fatty liver disease (NAFLD). Several biomarkers are currently being evaluated for their ability to substitute the liver biopsy as the reference standard. Recent clinical studies in NAFLD/NASH patients support the utility of PRO-C3, a marker of type III collagen formation, as a marker for the degree of fibrosis, disease activity, and effect of treatment. Here we establish the healthy reference range, optimal sample handling conditions for both short- and long-term serum storage, and robustness for the PRO-C3 assay. Methods PRO-C3 was measured in 269 healthy volunteers…

"Niepoprawny recydywista". Krajowy korespondent "Narodowca:" Adam Czekalski

2013

In 1958 the court in Toruń sentenced Adam Czekalski, the national correspondent of the daily Narodowiec published in Lens in France to 3 years of prison. Czekalski was probably the first person tried after October 1956 for maintaining contacts with an emigration magazine and publishing articles abroad. He was convicted for a similar “crime” some years earlier. Today he is unknown and nearly forgotten, despite being a person of strong character. Ailing, he died in prison, a month after being arrested. He was only 57.

Nanoassemblies Based on Supramolecular Complexes of Nonionic Amphiphilic Cyclodextrin and Sorafenib as Effective Weapons to Kill Human HCC Cells

2015

Sorafenib (Sor), an effective chemiotherapeutic drug utilized against hepatocellular carcinoma (HOC), robustly interacts with nonionic amphiphilic cyclodextrin (aCD, SC6OH), forming, in aqueous solution, supramolecular complexes that behave as building blocks of highly water-dispersible colloidal nanoassemblies. SC6OH/Sor complex has been characterized by complementary spectroscopic techniques, such as UV-vis, steady-state fluorescence and anisotropy, resonance light scattering and H-1 NMR. The spectroscopic evidences and experiments carried out in the presence of an adamantane derivative, which competes with drug for CD cavity, agree with the entrapment of Sor in aCD, pointing out the role…