Novel binuclear diorganotin(IV) complexes of adipic acid dihydrazone containing flexible aliphatic spacer: X-ray structural characterization of dimethyltin(IV) complex
Publication date: 15 December 2017 Source:Journal of Organometallic Chemistry, Volume 853 Author(s): Sundeep Kumar, Mala Nath Three novel binuclear diorganotin(IV) derivatives formulated as (R2Sn)2L (where R = Me, Bu and Ph) of a new symmetrical adipodihyrazone ligand, 1,6-bis(5-hydroxy-3-methyl-5-phenyl-4,5-dihydro-1H-pyrazol-1-yl)hexane-1,6-dione (H4L) derived from the Schiff base condensation of adipic acid dihydrazide and benzoylacetone in a 1:2 M ratio were synthesized. The micro-analysis and various spectroscopic techniques viz., infrared (IR), multinuclear (1H, 13C and 119Sn) magnetic resonance (NMR) spectroscopy and electrospray ionization mass (ESMS) spectrometry were employed to establish the chelating mode of the dihyrazone ligand towards the diorganotin moieties [R2Sn(IV)]2+. The single crystal X-ray diffraction analysis of complex, (Me2Sn)2L reveals that it crystallizes in monoclinic space group ‘P 21/n’ and consists of crystallographically discrete molecules. The complex has been investigated to prefer a highly distorted trigonal-bipyramidal geometry (TBP) over the square-pyramidal geometry (SP) around each tin centre wherein the more electronegative enolic and benzoylic oxygen atoms of the ligand are aligned axially, and two carbon atoms of the methyl groups attached to the tin metal atom and the imine nitrogen atom of the ligand aligned themselves equatorially around the tin centre in a trigonal plane. Thermal decomposition patterns...
Authors: Kara SD, Amin U, Benbadis SR PMID: 31747527 [PubMed - as supplied by publisher]
ConclusionWe provide an overview of mortality related to SE in China as the HQMS database covers a large number of cases of SE in China, making it one of the most efficient tools for mortality investigation. The use of electronic medical records in China creates several challenges and here we discuss lessons learned. The methodology will be improved and will be used in future studies.
Publication date: Available online 20 November 2019Source: The Lancet NeurologyAuthor(s): Jules Morgan
Publication date: Available online 20 November 2019Source: The Lancet NeurologyAuthor(s): Zenobia Zaiwalla
Publication date: Available online 21 November 2019Source: NeuropsychologiaAuthor(s): Mikko Hurme, Mika Koivisto, Linda Henriksson, Henry RailoAbstractSome neurological patients with primary visual cortex (V1) lesions can guide their behavior based on stimuli presented to their blind visual field. One example of this phenomenon is the ability to discriminate colors in the absence of awareness. These so-called patients with blindsight must have a neural pathway that bypasses V1, explaining their ability to unconsciously process stimuli. The pathways that have been most often hypothesized to be the cause of blindsight connec...
ConclusionData from this large, long-term study indicate that the nature, character, and frequency of SAEs in real-world settings are consistent with natalizumab's known safety profile. (Funded by Biogen; ClinicalTrials.gov identifiers: NCT00477113 and NCT00483847.)
This study examined the impact of psychiatric comorbidity on QOL in patients admitted to two level 4 epilepsy monitoring units (EMUs).MethodsIn this prospective observational study, 200 patients admitted to two level 4 EMUs completed standardized surveys including the Quality of Life in Epilepsy (QOLIE-31-P), Generalized Anxiety Disorder 7-item (GAD-7), Patient Health Questionnaire (PHQ-9), and Beck Depression Inventory-II (BDI-II). Hierarchal multiple regression was performed to assess impact on QOL.ResultsOf the 200 participants, 113 had a diagnosis of epilepsy, 36 had a diagnosis of PNES, and 51 were excluded for nondia...
This study is in line with previous literature highlighting the difficulty in retrospectively differentiating SE from psychogenic status based on clinical events description recorded in the medical chart.
Publication date: January 2020Source: Epilepsy &Behavior, Volume 102Author(s): Alexia Fasola, F.-Xavier Alario, Marion Tellier, Bernard Giusiano, Carlo Alberto Tassinari, Fabrice Bartolomei, Agnès TrébuchonAbstractPatients suffering from drug-resistant temporal lobe epilepsy show substantial language deficits (i.e., anomia) during their seizures and in the postictal period (postictal aphasia). Verbal impairments observed during the postictal period may be studied to help localizing the epileptogenic zone. These explorations have been essentially based on simple tasks focused on speech, thus disregarding t...
ConclusionPatients and physicians' priorities in the management of epilepsy overlap only in part. Patients are satisfied with their caring physicians and less satisfied with communication and management of routine and emergency problems.
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