Search results for "CAG"
showing 10 items of 492 documents
White Phosphorus Is Air-Stable Within a Self-Assembled Tetrahedral Capsule
2009
Molecular Fire Quencher Cage-shaped molecular assemblies can regulate the reactivity of smaller molecules trapped within them. Mal et al. (p. 1697 ) extend this approach to enable the protection of elemental white phosphorus (P 4 ), a substance that rapidly ignites on contact with oxygen. The tetrahedral cages self-assemble in aqueous solution through coordination of six ligands to four iron ions, and efficiently capture phosphorus from a suspension. The water-soluble host-guest constructs were stable in air for at least 4 months, but released intact P 4 rapidly on displacement by added benzene.
Proximity Effect using a Nanocage Structure: Polyhedral Oligomeric Silsesquioxane-Imidazolium Tetrachloro- palladate Salt as a Precatalyst for the Su…
2016
A polyhedral oligomeric silsesquioxane-imidazolium tetrachloropalladate salt (POSS-Imi-PdCl4) was prepared by the reaction of a polyhedral oligomeric silsesquioxane-imidazolium chloride salt (POSS-Imi-Cl) with PdCl2 and used as a pre-catalyst for the Suzuki-Miyaura reaction in water at 100 °C at a low loading (0.08-0.16 mol %). Biphenyl compounds were isolated in high to excellent yields. A comparison of the POSS-based catalyst with the corresponding catalyst without the nanocage structure (i.e., 1-butyl-3-methylimidazolium tetrachloropalladate) highlighted the role of the POSS structure to reach higher yields in the Suzuki-Miyaura reaction. This result is ascribed to a proximity effect of …
Antithrombotic Therapy in Elderly Patients with Acute Coronary Syndromes
2022
The treatment of acute coronary syndrome (ACS) in elderly patients continues to be a challenge because of the characteS.G.B.ristics of this population and the lack of data and specific recommendations. This review summarizes the current evidence about critical points of oral antithrombotic therapy in elderly patients. To this end, we discuss the peculiarities and differences reported referring to dual antiplatelet therapy (DAPT) in ACS management in elderly patients and what might be the best option considering these population characteristics. Furthermore, we analyze antithrombotic strategies in patients with atrial fibrillation (AF), with a particular focus on those cases that also presen…
Deregulated Splicing Is a Major Mechanism of RNA-Induced Toxicity in Huntington's Disease.
2019
Huntington's disease (HD) is caused by an expanded CAG repeat in the huntingtin (HTT) gene, translating into an elongated polyglutamine stretch. In addition to the neurotoxic mutant HTT protein, the mutant CAG repeat RNA can exert toxic functions by trapping RNA-binding proteins. While few examples of proteins that aberrantly bind to mutant HTT RNA and execute abnormal function in conjunction with the CAG repeat RNA have been described, an unbiased approach to identify the interactome of mutant HTT RNA is missing. Here, we describe the analysis of proteins that preferentially bind mutant HTT RNA using a mass spectrometry approach. We show that (I) the majority of proteins captured by mutant…
Il convento di San Domenico a Cagliari. Note e documenti.
2012
Fondato nel quartiere Villanova di Cagliari da domenicani pisani nella seconda metà del XIII secolo, il convento di San Domenico raggiunse la sua massima espansione nel XVI secolo in seguito ad ambiziosi programmi edilizi messi in atto sotto l'impulso dei re aragonesi. Ricostruire tali vicende oggi risulta particolarmente difficile a causa della dispersione dei documenti e della distruzione di una porzione considerevole della fabbrica. L'articolo dunque si ripropone di ripercorrere la storia del convento facendo diretto riferimento a recenti acquisizioni documentali e sulla scorta delle informazioni contenute in alcune cronache domenicane del XVII e del XVIII secolo, nel tentativo di apport…
Weight response to GLP-1 receptor agonists: Why women do it better?
2022
nessuno
Quantitative Rotor Broken Bar Evaluation in Double Squirrel Cage Induction Machines under Dynamic Operating Conditions
2013
Advanced monitoring techniques leading to fault diagnosis and prediction of induction machine faults, operating under non-stationary conditions have gained strength because of its considerable influence on the operational continuation of many industrial processes. In case of rotor broken bars, fault detection based on sideband components issued from currents, flux, instantaneous control or power signals under different load conditions, may fail due to the presence of inter-bar currents that reduce the degree of rotor asymmetry, especially for double squirrel cage induction motors. But the produced core vibrations in the axial direction, can be investigated to overcome the limitation of the …
Hepatīta B vīrusa G genotipa serdes antigēna veidoto vīrusveidīgo daļiņu raksturošana
2016
Šajā darbā tika salīdzinātas divas metodes HBV serdes antigēna veidoto vīrusveidīgo daļiņu (VVD) attīrīšanai no iepakotajām nukleīnskābēm – metode kapsīdu disociācijai ar GuHCl un sārmu hidrolīzes metode. Darbā aprakstīti un analizēti abu attīrīšanas metožu posmi un izdarīti secinājumi par attiecīgo attīrīšanas metožu efektivitāti. Tāpat tika raksturotas ar abām attīrīšanas metodēm iegūtās HBV G genotipa serdes antigēna VVD, nosakot to morfoloģiju (elektronu mikroskopija, dinamiskā gaismas izkliede) un spēju pakot raksturotas funkcionālas nukleīnskābes – CpG oligonukleotīdus, bakteriofāga dsRNS un DTxA mRNS. Eksperimentu rezultāti parāda, ka ar abām attīrīšanas metodēm iegūtās tukšās VVD sp…
The Role of the α Cell in the Pathogenesis of Diabetes: A World beyond the Mirror
2021
Type 2 Diabetes Mellitus (T2DM) is one of the most prevalent chronic metabolic disorders, and insulin has been placed at the epicentre of its pathophysiological basis. However, the involvement of impaired alpha (α) cell function has been recognized as playing an essential role in several diseases, since hyperglucagonemia has been evidenced in both Type 1 and T2DM. This phenomenon has been attributed to intra-islet defects, like modifications in pancreatic α cell mass or dysfunction in glucagon’s secretion. Emerging evidence has shown that chronic hyperglycaemia provokes changes in the Langerhans’ islets cytoarchitecture, including α cell hyperplasia, pancreatic beta (β) cell dedifferentiati…
A mutation in the second intracellular loop of the pituitary adenylate cyclase activating polypeptide type I receptor confers constitutive receptor a…
2000
AbstractThe pituitary adenylate cyclase activating polypeptide (PACAP) type I receptor belongs to the glucagon/secretin/vasoactive intestinal polypeptide (VIP) receptor family. We mutated and deleted an amino acid residue (E261) which is located within the second intracellular loop of the rat PACAP type I receptor and which is highly conserved among the receptor family. The wild-type receptor and the mutant receptors were efficiently expressed at the surface of COS-7 cells at nearly the same level and revealed the same high affinity for the agonist PACAP-27. The cAMP contents of COS cells transfected with the E261A, E261Q, and the deletion mutant receptor were 4.6-, 5.7-, and 6.7-fold highe…