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https://www.readbyqxmd.com/read/28911940/anthracenyl-polar-embedded-stationary-phases-with-enhanced-aromatic-selectivity-part-ii-a-density-functional-theory-study
#1
Mélanie Mignot, Benjamin Schammé, Vincent Tognetti, Laurent Joubert, Pascal Cardinael, Valérie Peulon-Agasse
New polar embedded aromatic stationary phases (mono- and trifunctional versions) that contain an amide-embedded group coupled with a tricyclic aromatic moiety were developed for chromatographic applications and described in the first paper of this series. These phases offered better separation performance for PAHs than for alkylbenzene homologues, and an enhanced ability to differentiate aromatic planarity to aromatic tridimensional conformation, especially for the trifunctional version and when using methanol instead of acetonitrile...
September 11, 2017: Journal of Chromatography. A
https://www.readbyqxmd.com/read/28911823/towards-antibody-drug-conjugates-and-prodrug-strategies-with-extracellular-stimuli-responsive-drug-delivery-in-the-tumor-microenvironment-for-cancer-therapy
#2
REVIEW
Nicolas Joubert, Caroline Denevault-Sabourin, Francesca Bryden, Marie-Claude Viaud-Massuard
The design of innovative anticancer chemotherapies with superior antitumor efficacy and reduced toxicity continues to be a challenging endeavor. Recently, the success of Adcetris(®) and Kadcyla(®) made antibody-drug conjugates (ADCs) serious contenders to reach the envied status of Paul Ehrlich's "magic bullet". However, ADCs classically target overexpressed and internalizing antigens at the surface of cancer cells, and in solid tumors are associated with poor tumor penetration, insufficient targeting in heterogeneous tumors, and appearance of several resistance mechanisms...
August 23, 2017: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/28901965/anaplastic-gliomas-in-adults-an-update
#3
Cristina Izquierdo, Bastien Joubert, François Ducray
PURPOSE OF REVIEW: The current review summarizes recent advances on the oncogenesis, classification and treatment of adult anaplastic gliomas. RECENT FINDINGS: According to the 2016 WHO classification, three main molecular subgroups of adult diffuse anaplastic gliomas can be distinguished based on the 1p/19q codeletion and isocitrate dehydrogenase (IDH) mutation status. In the future, this classification may be further refined based on the telomerase reverse transcriptase promoter and alpha thalassemia/mental retardation syndrome X-linked mutation status, gene expression, DNA methylation and genomic profiling...
September 8, 2017: Current Opinion in Oncology
https://www.readbyqxmd.com/read/28893945/zfp423-znf423-regulates-cell-cycle-progression-the-mode-of-cell-division-and-the-dna-damage-response-in-purkinje-neuron-progenitors
#4
Filippo Casoni, Laura Croci, Camilla Bosone, Roberta D'Ambrosio, Aurora Badaloni, Davide Gaudesi, Valeria Barili, Justyna R Sarna, Lino Tessarollo, Ottavio Cremona, Richard Hawkes, Søren Warming, G Giacomo Consalez
The Zfp423/ZNF423 gene encodes a 30-Zn-finger transcription factor involved in key developmental pathways. While null Zfp423 mutants develop cerebellar malformations, the underlying mechanism remains unknown. ZNF423 mutations have been associated to Joubert Syndrome, a ciliopathy causing cerebellar vermis hypoplasia and ataxia. ZNF423 participates in the DNA damage response, raising questions regarding its role as a regulator of neural progenitor cell cycle progression in cerebellar development. To characterize in vivo the function of ZFP423 in neurogenesis, we analyzed allelic murine mutants in which distinct functional domains are deleted...
September 11, 2017: Development
https://www.readbyqxmd.com/read/28892859/assessment-of-flushing-methods-for-the-removal-of-heavy-chlorinated-compounds-dnapl-in-an-alluvial-aquifer
#5
Julien Maire, Antoine Joubert, Delphine Kaifas, Thomas Invernizzi, Julien Marduel, Stéfan Colombano, David Cazaux, Cédric Marion, Pierre-Yves Klein, Alain Dumestre, Nicolas Fatin-Rouge
Immiscible mobilization and foam flushing were assessed as low surfactant consuming technologies, for the enhanced recovery of dense non-aqueous phase liquid (DNAPL) residual at a site contaminated by heavy chlorinated compounds. Preliminary experiments in well-controlled conditions demonstrated the phenomena involved in these remediation technologies and their limitations. Furthermore, we characterized the technologies according to by their surfactant consumption (per kg of DNAPL recovered) and the final DNAPL saturation reached...
September 7, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28885045/duret-hemorrhage-complicating-a-sinking-skin-flap-syndrome
#6
Mickael Cardinale, Eric Meaudre, Pierre-Julien Cungi, Cédric Nguyen, Pierre Esnault, Christophe Joubert
Duret hemorrhage has always been reported during an episode of increased intracranial pressure with transtentorial herniation. We reported a Duret hemorrhage occurring during an episode of intracranial hypotension resulted in sinking skin flap syndrome which was responsible for acute paradoxal descending transtentorial herniation and Duret hemorrhage, 10 days after large hemicraniectomy which could indicate early cranioplasty.
September 8, 2017: British Journal of Neurosurgery
https://www.readbyqxmd.com/read/28884744/pulmonary-large-cell-neuroendocrine-carcinoma-with-adenocarcinoma-like-features-napsin-a-expression-and-genomic-alterations
#7
Natasha Rekhtman, Catherine M Pietanza, Joshua Sabari, Joseph Montecalvo, Hangjun Wang, Omar Habeeb, Kyuichi Kadota, Prasad Adusumilli, Charles M Rudin, Marc Ladanyi, William D Travis, Philippe Joubert
Pulmonary large cell neuroendocrine carcinoma (LCNEC) is a highly aggressive malignancy, which was recently found to comprise three major genomic subsets: small cell carcinoma-like, non-small cell carcinoma (predominantly adenocarcinoma)-like, and carcinoid-like. To further characterize adenocarcinoma-like subset, here we analyzed the expression of exocrine marker napsin A, along with TTF-1, in a large series of LCNECs (n=112), and performed detailed clinicopathologic and genomic analysis of napsin A-positive cases...
September 8, 2017: Modern Pathology: An Official Journal of the United States and Canadian Academy of Pathology, Inc
https://www.readbyqxmd.com/read/28870542/detailed-qualitative-analysis-of-honeybush-tea-cyclopia-spp-volatiles-by-comprehensive-two-dimensional-gas-chromatography-coupled-to-time-of-flight-mass-spectrometry-and-relation-with-sensory-data
#8
Gaalebalwe Ntlhokwe, Magdalena Muller, Elizabeth Joubert, Andreas G J Tredoux, André de Villiers
The volatile composition of honeybush (Cyclopia) species was studied by comprehensive two-dimensional gas chromatography coupled to time-of-flight mass spectrometry (GC×GC-TOF-MS). Headspace-solid phase micro-extraction (HS-SPME) was used to extract the volatile compounds from tea infusions prepared from the three species C. genistoides, C. maculata and C. subternata. A total of 287 compounds were identified, 101 of which were confirmed using reference standards, while the remainder were tentatively identified using mass spectral and retention index (RI) data...
August 24, 2017: Journal of Chromatography. A
https://www.readbyqxmd.com/read/28862134/adult-female-acne-treated-with-spironolactone-a-retrospective-data-review-of-70-cases
#9
Anne Isvy-Joubert, Jean-Michel Nguyen, Aurélie Gaultier, Mélanie Saint-Jean, Marie Le Moigne, Elodie Boisrobert, Amir Khammari, Brigitte Dreno
The prevalence of acne in the adult population is increasing, particularly in women. Spironolactone regulates sebaceous gland activity by blocking androgen receptor. To evaluate retrospectively the efficacy of spironolactone in women with acne. Data from 70 women of at least 20 years, treated for their acne between 2010 and 2015 with low-dose spironolactone (≤150 mg/day), were analysed. Remission was defined by the number of retentional lesions inferior or equal to five and inflammatory lesions inferior or equal to two on the face...
August 1, 2017: European Journal of Dermatology: EJD
https://www.readbyqxmd.com/read/28860541/functional-validation-of-novel-mks3-tmem67-mutations-in-coach-syndrome
#10
So-Hyun Lee, Tai-Seung Nam, Wenting Li, Jung Ha Kim, Woong Yoon, Yoo-Duk Choi, Kun-Hee Kim, Hua Cai, Min Jung Kim, Changsoo Kim, Hyon E Choy, Nacksung Kim, Kee Oh Chay, Myeong-Kyu Kim, Seok-Yong Choi
COACH syndrome is an autosomal recessive developmental disorder, a subtype of Joubert syndrome and related disorders, characterized by cerebellar vermis hypoplasia, oligophrenia, ataxia, coloboma, and hepatic fibrosis. Although mutations in TMEM67 (transmembrane protein 67)/MKS3 (Meckel-Gruber syndrome, type 3) were reported to cause COACH syndrome, this causality has not verified by functional studies. In a 20-year-old Korean man, we found cerebellar ataxia, isolated elevation in serum γ-glutamyl transpeptidase (γ-GTP) activity, oligophrenia, the molar tooth sign (MTS) in the brain MR images and congenital hepatic fibrosis (CHF)...
August 31, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28852492/high-density-lipoprotein-particle-pattern-and-overall-lipid-responses-to-a-short-term-moderate-intensity-aerobic-exercise-training-intervention-in-patients-with-chronic-kidney-disease
#11
Emily M Miele, Samuel A E Headley, Michael Germain, Jyovani Joubert, Sarah Herrick, Charles Milch, Elizabeth Evans, Allen Cornelius, Britton Brewer, Beth Taylor, Richard J Wood
BACKGROUND: Chronic kidney disease (CKD) is associated with abnormal lipid profiles and altered high-density lipoprotein (HDL) particle size patterns. Lower levels of the larger, cardioprotective HDL particles found in CKD may play a role in the increased risk for cardiovascular disease in these patients. The current study was designed to assess the effects of short-term moderate-intensity aerobic exercise training on the HDL particle pattern and overall lipid profiles in stage 3 CKD patients...
August 2017: Clinical Kidney Journal
https://www.readbyqxmd.com/read/28846093/super-resolution-microscopy-reveals-that-disruption-of-ciliary-transition-zone-architecture-causes-joubert%C3%A2-syndrome
#12
Xiaoyu Shi, Galo Garcia Iii, Julie C Van De Weghe, Ryan McGorty, Gregory J Pazour, Dan Doherty, Bo Huang, Jeremy F Reiter
Ciliopathies, including nephronophthisis (NPHP), Meckel syndrome (MKS) and Joubert syndrome (JBTS), can be caused by mutations affecting components of the transition zone, a domain near the base of the cilium that controls the protein composition of its membrane. We defined the three-dimensional arrangement of key proteins in the transition zone using two-colour stochastic optical reconstruction microscopy (STORM). NPHP and MKS complex components form nested rings comprised of nine-fold doublets. JBTS-associated mutations in RPGRIP1L or TCTN2 displace certain transition-zone proteins...
August 28, 2017: Nature Cell Biology
https://www.readbyqxmd.com/read/28838911/anterior-mesencephalic-cap-dysplasia-novel-brain-stem-malformative-features-associated-with-joubert-syndrome
#13
F Arrigoni, R Romaniello, D Peruzzo, A De Luca, C Parazzini, E M Valente, R Borgatti, F Triulzi
In Joubert syndrome, the "molar tooth" sign can be associated with several additional supra- and infratentorial malformations. Here we report on 3 subjects (2 siblings, 8-14 years of age) with Joubert syndrome, showing an abnormal thick bulging of the anterior profile of the mesencephalon causing a complete obliteration of the interpeduncular fossa. DTI revealed that the abnormal tissue consisted of an ectopic white matter tract with a laterolateral transverse orientation. Tractographic reconstructions support the hypothesis of impaired axonal guidance mechanisms responsible for the malformation...
August 24, 2017: AJNR. American Journal of Neuroradiology
https://www.readbyqxmd.com/read/28835532/sensitivity-of-the-stat-view-rapid-self-test-and-implications-for-use-during-acute-hiv-infection
#14
Narjis Boukli, Anders Boyd, Noémie Wendremaire, Pierre-Marie Girard, Julie Bottero, Laurence Morand-Joubert
OBJECTIVES: HIV testing is an important step towards diminishing incident infections. Rapid self-tests whose use is becoming more common in France could help increase access to testing, yet could fail to diagnose HIV during acute HIV infection (AHI). The aim of the present study was to evaluate HIV-detection sensitivity of a commonly used rapid self-test (STAT-VIEW HIV1/2), compared with another point-of-care rapid test (INSTI), among patients presenting with AHI. METHODS: Individuals tested at Saint-Antoine Hospital (Paris, France) with negative or indeterminate western blot (WB) results and detectable HIV-RNA were included...
August 23, 2017: Sexually Transmitted Infections
https://www.readbyqxmd.com/read/28816198/lingual-frenectomy-in-joubert-syndrome
#15
Vivek Gurjar, Minal Gurjar, Channaveer Pattanshetti, Banashree Sankeshwari
AIM: Our aim is to present a case of a rare disorder, such as Joubert syndrome (JS) which required oral surgical intervention under general anesthesia at a very young age to help in achieving normal developmental milestones. BACKGROUND: Ciliopathies are an emerging class of diseases of which JS is a significant member. There have been very few cases of JS with its distinguishing features which have been reported in recent literature. CASE REPORT: We herewith present a case of JS who reported to our unit with a complaint of speech abnormality...
August 1, 2017: Journal of Contemporary Dental Practice
https://www.readbyqxmd.com/read/28810773/geometric-phase-effects-in-excited-state-dynamics-through-a-conical-intersection-in-large-molecules-n-dimensional-linear-vibronic-coupling-model-study
#16
Jiaru Li, Loïc Joubert-Doriol, Artur F Izmaylov
We investigate geometric phase (GP) effects in nonadiabatic transitions through a conical intersection (CI) in an N-dimensional linear vibronic coupling (ND-LVC) model. This model allows for the coordinate transformation encompassing all nonadiabatic effects within a two-dimensional (2D) subsystem, while the other N - 2 dimensions form a system of uncoupled harmonic oscillators identical for both electronic states and coupled bi-linearly with the subsystem coordinates. The 2D subsystem governs ultra-fast nonadiabatic dynamics through the CI and provides a convenient model for studying GP effects...
August 14, 2017: Journal of Chemical Physics
https://www.readbyqxmd.com/read/28799313/joubert-syndrome-associated-with-seizures
#17
K Mugundhan, M C Vasif Mayan, P D Nidhin, G Loganathan, N Balamurugan
No abstract text is available yet for this article.
August 2017: Journal of the Association of Physicians of India
https://www.readbyqxmd.com/read/28796425/comparison-of-stroke-volume-measurements-during-hemodialysis-using-bioimpedance-cardiography-and-echocardiography
#18
Michael J Germain, Jyovani Joubert, Daniel O'Grady, Brian H Nathanson, Yossi Chait, Nathan W Levin
BACKGROUND: Fluid management remains a major challenge of hemodialysis (HD) care, with serious implications for morbidity and mortality. Intradialytic fluid management is typically guided by blood pressure, an indirect resultant of hemodynamics status. Direct measurements of hemodynamic parameters may improve cardiovascular outcomes by providing rational bases for intervention. We compare stroke volume (SV) measurements using a noninvasive, regional biompedance cardiography device (NiCaS) with Doppler echocardiography (Echo) in HD setting...
August 10, 2017: Hemodialysis International
https://www.readbyqxmd.com/read/28777677/my-kite-will-fly-improving-communication-and-understanding-in-young-children-when-a-mother-is-diagnosed-with-life-threatening-gynecological-cancer
#19
Cynthia Holland, Alison Hocking, Lynette Joubert, Fiona McDermott, Marcus D Niski, Frances Thomson Salo, Michael A Quinn
STUDY AIMS: The My Kite Will Fly (MKWF) research program is built on the well-documented need for effective clinical communication tools and therapeutic interventions where a child's mother is diagnosed with life-threatening gynecological cancer. METHODS: The Dignity Model and Child-Centered approach were two key study foundations in this pilot cohort. Quantitative survey and qualitative semistructured methods were employed to gather data from patient families at three distinct phases: Diagnosis, Treatment, and Palliative care...
August 4, 2017: Journal of Palliative Medicine
https://www.readbyqxmd.com/read/28771248/interpreting-the-clinical-significance-of-combined-variants-in-multiple-recessive-disease-genes-systematic-investigation-of-joubert-syndrome-yields-little-support-for-oligogenicity
#20
Ian G Phelps, Jennifer C Dempsey, Megan E Grout, Christine R Isabella, Hannah M Tully, Dan Doherty, Ruxandra Bachmann-Gagescu
PurposeNext-generation sequencing (NGS) often identifies multiple rare predicted-deleterious variants (RDVs) in different genes associated with a recessive disorder in a given patient. Such variants have been proposed to contribute to digenicity/oligogenicity or "triallelism" or to act as genetic modifiers.MethodsUsing the recessive ciliopathy Joubert syndrome (JBTS) as a model, we investigated these possibilities systematically, relying on NGS of known JBTS genes in a large JBTS and two control cohorts.Results65% of affected individuals had a recessive genetic cause, while 4...
August 3, 2017: Genetics in Medicine: Official Journal of the American College of Medical Genetics
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