Publications by authors named "Gendre P"

Article Synopsis
  • Recent advancements in creating nonplanar chiral aromatics, like helicenes, have not yet translated into the development of their transition metal complexes for catalytic applications.
  • This study successfully synthesized enantio- and diastereopure oxa[6]- and oxa[7]helicene-indene half-sandwich RhI and RhIII complexes, as well as a FeII complex, showcasing their potential in catalysis.
  • The research demonstrated the use of oxahelicene-indenido RhIII complexes in enantioselective C-H arylation reactions, yielding axially chiral biaryls with excellent selectivity and confirming an innovative chirality transfer process.
View Article and Find Full Text PDF

Aza-BODIPYs represent a class of fluorophores in which the π-conjugated system is rigidified and stabilized by a boron atom. A promising strategy to enhance their fluorescence properties involves replacing the boron atom with a metal ion. Here, we describe the synthesis and characterization of a water-soluble derivative where the metal is a gallium(III) ion, termed WazaGaY (water-soluble aza-GaDIPY).

View Article and Find Full Text PDF

Two innovative early/late Ti-Pt-heterobimetallic complexes were synthesized, characterized, and screened in cell-based assays using several human (SW480 and MDA-MB-231) and murine cancer cell lines (CT26 and EMT6) as well as a non-cancerous cell line (HMEC). The combination of the two metals - titanium(IV) and platinum (IV) - in a single molecule led to a synergistic biological activity (higher anti-proliferative properties than a mixture of each of the corresponding monometallic complexes). This study also investigated the benefits of associating a metal-free terpyridine moiety (with intrinsic biological activity) with a water-soluble titanocene fragment.

View Article and Find Full Text PDF

Poly(vinyl chloride) undergoes dechlorination in the presence of triethylsilane (EtSiH) and a catalytic amount of [CpZr(NPh)][CHB(CF)] (1 b) at 40-80 °C, with up to 91 % efficiency. Stoichiometric reactivity studies conducted on cyclohexyl chloride as a model suggest that 1 b dechlorinates PVC by initial chloride abstraction, followed by hydride transfer to the cationic PVC chain from EtSiH. Consumer items such as pipe fitting, vinyl disc or electric cable insulation undergo either dechlorination or hydrosilylation of the carbonyl-containing copolymer (polyvinyl acetate) or plasticizer (phthalate).

View Article and Find Full Text PDF

We report the synthesis of a new generation of phenoxy-amidine ligands based on an aryloxy moiety possessing an -linked trisubstituted amidine. The reaction of the phenol-amidine proligands with aluminum and zinc alkyls gave mono- or bis-ligated complexes depending on the metal/ligand ratio used. The solid-state structure of four proligands and thirteen Zn and Al complexes has been determined by X-Ray diffraction analysis.

View Article and Find Full Text PDF

Ethylene- and phenylene-bridged bis(salicylamidine) ligands have been readily prepared from ethylene or phenylenediamine and iminium chloride derivatives generated from ,-dialkylsalicylamides. The former, in its diprotonated form (FAlenH), reacts with AlMe to afford a zwitterionic dimethyldiphenoxyaluminate complex with the FAlen ligand monoprotonated and in a bidentate κ, fashion. A phenylene-bridged proligand behaves differently, yielding a neutral methylaluminum complex bearing a κ,,-coordinated FAlen ligand.

View Article and Find Full Text PDF

Background: Clinical pharmacists have a pivotal role in the management of the patient's medication. However, it is necessary to know how pharmacist-mediated deprescribing could be implemented in a hospital setting according to hospital physicians.

Objective: To explore physicians' views on the involvement of hospital pharmacists in the deprescribing process using the example of PPIs.

View Article and Find Full Text PDF

Background: Proton pump inhibitors (PPIs) are one of the most widely prescribed drug classes in the community and at hospital. The significant misuse of PPIs requires the implementation for a deprescribing strategy. Numerous studies aiming at evaluating the impact of deprescribing interventions have been set up, implying a precisely known evolution of consumption of PPIs in the population studied without intervention.

View Article and Find Full Text PDF

Aza-boron-dipyrromethenes (Aza-BODIPYs) are an increasingly studied class of fluorophores. They can be seen as an azadipyrromethene ("aza-DIPY") ligand rigidified by a metalloid, a boron atom. Based on this idea, a series of complexes of group 13 metals (aluminum and gallium) have been synthesized and characterized.

View Article and Find Full Text PDF

Objectives: The objective of this study was to assess the relevance of proton pump inhibitors prescribing in patients entering a ward with a clinical pharmacist and therefore identifying inappropriate prescribing.

Methods: A prospective study was conducted for 4 months. Patients admitted to the hospital for elective or emergency surgery, who had medication reconciliation performed by the clinical pharmacy team and who were prescribed proton pump inhibitors before admission were included.

View Article and Find Full Text PDF

Ti-imido complex [TiCl(NBu)(BIPP)] [; BIPP = bis(iminophosphoranyl)phosphide ligand] reacts with terminal alkynes R-C≡CH (R = phenyl, isopropenyl, cyclopropyl, and 2-pyridyl) via P-P bond cleavage of the BIPP ligand. The resulting complexes [TiCl(NPN')(NPhPPh)] () contain a pincer-type NPN' phosphide ligand that incorporates the terminal alkyne and the imido ligand from complex . Complexes feature two chiral centers (Ti and P) with interdependent absolute configurations; thus, they are formed stereoselectively.

View Article and Find Full Text PDF

Background: There is growing interest in using suture buttons for coracoid fixation to avoid the complications associated with screws during the Latarjet procedure. However, achieving bone block healing is critical for successful shoulder stabilization and return to sport. The purpose of this study was to assess and compare the healing rates and positioning of the coracoid bone block fixed with cortical suture buttons that were either manually tensioned (using a knot pusher) or mechanically tensioned (using a tensioning device) during arthroscopic Latarjet procedures.

View Article and Find Full Text PDF

During the first wave of the COVID-19 pandemic, some French regions were more affected than others. To relieve those areas most affected, the French government organized transfers of critical patients, notably by plane or helicopter. Our objective was to investigate the impact of such transfers on the pulse oximetric saturation (SpO)-to-inspired fraction of oxygen (FiO) ratio among transferred critical patients with COVID-19.

View Article and Find Full Text PDF

Cationic amidotitanocene complexes [Cp Ti(NPhAr)][B(C F ) ] (Cp=η -C H ; Ar=phenyl (1 a), p-tolyl (1 b), p-anisyl (1 c)) were isolated. The bonding situation was studied by DFT (Density Functional Theory) using EDA-NOCV (Energy Decomposition Analysis with Natural Orbitals for Chemical Valence). The polar Ti-N bond in 1 a-c features an unusual inversion of σ and π bond strengths responsible for the balance between stability and reactivity in these coordinatively unsaturated species.

View Article and Find Full Text PDF

Background: The results of surgical treatment of shoulder injuries in high-level male gymnasts have not yet been documented.

Purpose: To evaluate the functional and subjective results after surgical treatment of shoulder injuries in high-level gymnasts and the possibilities to return to sport at the same level.

Study Design: Case series; Level of evidence, 4.

View Article and Find Full Text PDF

Background: Weightbearing and traction-suspension movements with the upper limbs put considerable demands upon the shoulder region of high-level gymnasts. The diagnosis of instability in these gymnasts may be difficult because voluntary inferior shoulder subluxation is part of their training and is needed to perform some acrobatic figures.

Purpose: To (1) assess the epidemiology of shoulder lesions requiring surgery, (2) describe the types of injuries and assess which maneuvers and equipment put the gymnast most at risk, and (3) present a pathoanatomic classification of the injured shoulder in high-level male gymnasts.

View Article and Find Full Text PDF

The synthesis and characterization of a range of bis(iminophosphoranyl)phosphide () group 4 and coinage metals complexes is reported. ligands bind group 4 metals in a pseudo -fashion, and the central phosphorus atom enables the formation of d-d heterobimetallic complexes. Various DFT computational tools (including AIM, ELF and NCI) show that the phosphorus-metal interaction is either electrostatic (Ti) or dative (Au, Cu).

View Article and Find Full Text PDF
Article Synopsis
  • The study evaluates the effectiveness of coracoid bone-block procedures (Bristow or Latarjet) in patients who experienced recurrent anterior shoulder instability after an unsuccessful arthroscopic Bankart repair.
  • Out of 59 patients who underwent the procedure, 91% successfully returned to some form of sports, with 70% resuming their prior activities, indicating a promising outcome for this surgical intervention.
  • Key findings also highlighted risk factors such as the presence of large Hill-Sachs lesions impacting recovery, and showed a low incidence of recurrent dislocations post-surgery, with a small percentage developing severe postinstability arthritis.
View Article and Find Full Text PDF

We report the synthesis of a series of Zr and Ti complexes bearing phosphasalen which differs from salen by the incorporation of two P atoms in the ligand backbone. The reaction of phosphasalen proligands (1a-1c)H with Zr(CHPh) led to different products depending on the nature of the N,N-linker in the ligand. In the case of ethylene-linked phosphasalen, octahedral Zr complex 2a formed as a single stereoisomer in trans geometry.

View Article and Find Full Text PDF

Disclaimer: In an effort to expedite the publication of articles related to the COVID-19 pandemic, AJHP is posting these manuscripts online as soon as possible after acceptance. Accepted manuscripts have been peer-reviewed and copyedited, but are posted online before technical formatting and author proofing. These manuscripts are not the final version of record and will be replaced with the final article (formatted per AJHP style and proofed by the authors) at a later time.

View Article and Find Full Text PDF

Purpose: To analyze the functional results after unipolar or bipolar arthroscopic soft tissue stabilization in the treatment of recurrent anterior instability after a coracoid bone block procedure.

Methods: We studied a retrospective series of 41 patients (33 male, 8 female) with recurrent anterior shoulder instability after Bristow (n = 7) or Latarjet (n = 34) coracoid bone block treated with unipolar (isolated Bankart, n = 22) or bipolar (Bankart + Hill-Sachs remplissage, n = 19) arthroscopic stabilization.

Results: The mean follow-up was 72 (25-208) months.

View Article and Find Full Text PDF

Purpose: To evaluate mid-term clinical outcomes, complications, bone-block healing, and positioning using suture-button fixation for an arthroscopic Latarjet procedure.

Methods: Patients with traumatic recurrent anterior instability and glenoid bone loss underwent guided arthroscopic Latarjet with suture-button fixation. We included patients with anterior shoulder instability, glenoid bone loss >20%, and radiographic and clinical follow-up minimum of 24 months.

View Article and Find Full Text PDF

Tame d phosphidotitanocene cations stabilized with a pendant tertiary phosphane arm are reported. These compounds were obtained by one-electron oxidation of d precursors with [Cp Fe][BPh ]. The electronic structure of these compounds was studied experimentally (EPR, UV/Vis, and NMR spectroscopy, X-ray diffraction analysis) and through DFT calculations.

View Article and Find Full Text PDF

Three new gold(I)-coumarin-based trackable therapeutic complexes and two non-trackable analogues have been synthesised and fully characterised. They all display anti-proliferative properties on several types of cancer cell lines, including those of colon, breast, and prostate. Two complexes displayed significant anti-inflammatory effects; one displayed pro-inflammatory behaviour; this highlights the impact of the position of the fluorophore on the caffeine scaffold.

View Article and Find Full Text PDF

A novel Ti/In-heterometallic radiotheranostic along with non-radioactive Ti/In, Ti/Lu, and Ti/Y analogues has been reported, thanks to the design of a challenging synthesis of the first titanocene-DOTA ligand. The corresponding titanocene-BODIPY complex was developed for in vitro tracking by optical imaging. The different complexes were characterized and their antiproliferative properties were evaluated on three cancer cell lines (A2780, B16F1, and PC3).

View Article and Find Full Text PDF