gebhart/patrepeval huggingface dataset:
Scaffold-supported extracellular matrices preserved by magnesium hydroxide nanoparticles for renal tissue regeneration (2020)

Fibroblast-derived extracellular matrix (fECM)-supported scaffolds made up of poly(lactic-co-glycolic acid) were prepared with the enhanced preservation of ECM components by composites with magnesium hydroxide nanoparticles (MH NPs), and were applied for the renal tissue regeneration. MH NP utilization resulted in an increased ECM protein amount, decreased scaffold degradation, and surface hydrophilic modification. These effects were correlated with the improved adhesion and viability of renal proximal tubule epithelial cells on the scaffold. In vivo experiments demonstrated effects of fECM and MH NPs on renal regeneration. The number of glomeruli was the largest in the ECM scaffold with MH NPs as compared to the pristine scaffold and ECM scaffold without MH NPs. Quantitative PCR analysis exhibited less inflammation (IL-1β, TNF-α, and IL-6) and fibrosis-related (vimentin, collagen I, and α-SMA) markers, whereas opposite results were found in regeneration-related markers (Pax2, vWf, Wt1, and Emx2). The concentration of renal function-related molecules, creatinine and blood urea nitrogen diminished in the ECM scaffold with MH NPs. All results indicate that MH NPs utilization for the renal regenerative scaffold is effective for in vitro and in vivo environments and is, therefore, a good model for regeneration of kidneys and other tissues, and organs.
Avis relatif à la saisine du 15 décembre 2009 de Monsieur le Député François Grosdidier, quant aux conclusions de l'étude intitulée “A comparison of the effects of three GM corn varieties on mammalian health” par J. Spiroux de Vendômois, F. Roullier, D. Cellier & G.E. Séralini, Int. J. Biol. Sci, 2009 : 5(7) : 706-726 (2009)

Le HCB a fait siennes les observations selon lesquelles les faiblesses des analyses statistiques interdisent de conclure avec suffisamment de certitude à l'absence de risques sanitaires et environnementaux liés aux OGM. Ces faiblesses sont aujourd’hui admises par les instances d’évaluation (AESA). L’étude de J. Spiroux de Vendômois et al., comme celle présentée par la société Monsanto pour les mêmes OGM, se borne à établir si les différences observées entre les groupes témoins et les groupes traités sont statistiquement significatives. Bien que l'interprétation des différences trouvées comme significatives diffère dans les deux cas, aucune conclusion définitive ne peut être tirée en raison des faiblesses des analyses statistiques proposées. Dans leur analyse à partir des données initiales fournies par la société Monsanto, J. Spiroux de Vendômois et al. montrent que très peu de différences observées peuvent être considérées comme statistiquement significatives. Les auteurs tentent néanmoins de convaincre que ces différences sont biologiquement significatives. Seuls des arguments d’ordre statistique, non recevables pour un statisticien et un toxicologue, sont mis en avant pour justifier les conclusions de cette étude. Il est important de rappeler ici la contribution de la statistique : c'est un outil d'aide à la décision, mais pas un outil de décision. Ce n'est pas la statistique qui permet de conclure si un OGM est dangereux ou non pour la santé humaine. La statistique est là pour aider le toxicologue à évaluer correctement les risques de se tromper en concluant sur l'absence ou la présence d'effets négatifs. La convergence d’événements non statistiquement significatifs pourrait tout autant conduire le toxicologue à juger d’une toxicité potentielle sur un tissu ou un organe cible. Toutefois, bien que les auteurs reprennent à juste titre ces arguments, leurs conclusions ne reposent que sur l’interprétation de certaines modifications isolées de constantes hématologiques et biochimiques. Il n’est pas fait de lien avec d’autres paramètres clés de l’évaluation de la toxicité, les résultats des examens macroscopiques et histologiques par exemple. En conclusion, le Comité scientifique (CS) du Haut Conseil des biotechnologies (HCB) indique que l’étude de J. Spiroux de Vendômois et al., n'apporte aucun élément scientifique recevable susceptible d’imputer aux trois OGM ré-analysés une quelconque toxicité hématologique, hépatique ou rénale.
Prevention of chemotherapy-induced premature ovarian insufficiency in mice by scaffold-based local delivery of human embryonic stem cell-derived mesenchymal progenitor cells (2021)

HA GEL scaffolds can be used as new delivery platforms for ESC-MPC therapy, and this method may provide a novel option for the clinical treatment of chemotherapy-induced POI.
The perspectives of oncology healthcare providers on the role of palliative care in a comprehensive cancer center (2022)

Overall, the majority of oncology health care providers believe that more patients could benefit from PC, but opinions vary regarding the roles of inpatient and outpatient PC. Barriers and areas for improvement include availability, referral process, and improved communication.
Stereotactic body radiation therapy for the treatment of localized prostate cancer in men with underlying inflammatory bowel disease (2021)

To date, this is one of the largest groups of patients with IBD treated safely and effectively with radiation for prostate cancer and the only review of patients treated with SBRT. Caution is warranted when delivering therapeutic radiation to patients with IBD, however modern radiation techniques appear to have mitigated the risk of GI side effects.
Continuous-Wave Operation of InGaN/GaN Laser Diodes on Semipolar (1 1\bar2 2) Plane Gallium Nitrides (2009)

Continuous-wave (CW) operations of semipolar (1 12 2) plane InGaN/GaN laser diodes (LDs) were demonstrated. The LD structures were grown on low extended defect density semipolar (1 12 2) GaN bulk substrates, using conventional metal organic chemical vapor deposition (MOCVD) at atmospheric pressure. The threshold current was 54 mA (6.5 kA/cm2) for the CW operation [39 mA (4.6 kA/cm2) for pulsed mode]. Stimulated emission was observed at 405.9 nm with a spectral line-width of 1 nm. These results indicate that semipolar (1 12 2) GaN is a promising orientation for the realization of blue-green and green LDs.
On Delay Faults Affecting I/O Blocks of an SRAM-Based FPGA Due to\n Ionizing Radiations (2014)

Experimental means to characterize delay faults induced by bit flips and SEUs\nin I/O blocks of SRAM-based FPGAs are proposed. A delay fault up to 6.2ns\nsensitized by an events chain is reported.\n
Regulation of gene expression in the mammalian eye and its relevance to eye disease (2006)

We used expression quantitative trait locus mapping in the laboratory rat (Rattus norvegicus) to gain a broad perspective of gene regulation in the mammalian eye and to identify genetic variation relevant to human eye disease. Of >31,000 gene probes represented on an Affymetrix expression microarray, 18,976 exhibited sufficient signal for reliable analysis and at least 2-fold variation in expression among 120 F(2) rats generated from an SR/JrHsd x SHRSP intercross. Genome-wide linkage analysis with 399 genetic markers revealed significant linkage with at least one marker for 1,300 probes (alpha = 0.001; estimated empirical false discovery rate = 2%). Both contiguous and noncontiguous loci were found to be important in regulating mammalian eye gene expression. We investigated one locus of each type in greater detail and identified putative transcription-altering variations in both cases. We found an inserted cREL binding sequence in the 5' flanking sequence of the Abca4 gene associated with an increased expression level of that gene, and we found a mutation of the gene encoding thyroid hormone receptor beta2 associated with a decreased expression level of the gene encoding short-wavelength sensitive opsin (Opn1sw). In addition to these positional studies, we performed a pairwise analysis of gene expression to identify genes that are regulated in a coordinated manner and used this approach to validate two previously undescribed genes involved in the human disease Bardet-Biedl syndrome. These data and analytical approaches can be used to facilitate the discovery of additional genes and regulatory elements involved in human eye disease.
Terahertz waveform synthesis from integrated lithium niobate circuits (2022)

Bridging the "terahertz (THz) gap" relies upon synthesizing arbitrary waveforms in the THz domain enabling applications that require both narrow band sources for sensing and few-cycle drives for classical and quantum objects. However, realization of custom-tailored waveforms needed for these applications is currently hindered due to limited flexibility for optical rectification of femtosecond pulses in bulk crystals. Here, we experimentally demonstrate that thin-film lithium niobate (TFLN) circuits provide a versatile solution for such waveform synthesis through combining the merits of complex integrated architectures, low-loss distribution of pump pulses on-chip, and an efficient optical rectification. Our distributed pulse phase-matching scheme grants shaping the temporal, spectral, phase, amplitude, and farfield characteristics of the emitted THz field through designer on-chip components. This strictly circumvents prior limitations caused by the phase-delay mismatch in conventional systems and relaxes the requirement for cumbersome spectral pre-engineering of the pumping light. We provide a toolbox of basic blocks that produce broadband emission up to 680 GHz with adaptable phase and coherence properties by using near-infrared pump pulse energies below 100 pJ.
Characterizing the Link Between Glial Activation and Changed Functional Connectivity in National Football League Players Using Multimodal Neuroimaging (2019)

Further study of the clinical significance of this altered pattern of interregional connectivity in active and recently retired NFL players is needed.
Nucleotide analogues as inhibitors of SARS‐CoV Polymerase (2020)

SARS-CoV-2, a member of the coronavirus family, has caused a global public health emergency. Based on our analysis of hepatitis C virus and coronavirus replication, and the molecular structures and activities of viral inhibitors, we previously reasoned that the FDA-approved hepatitis C drug EPCLUSA (Sofosbuvir/Velpatasvir) should inhibit coronaviruses, including SARS-CoV-2. Here, using model polymerase extension experiments, we demonstrate that the active triphosphate form of Sofosbuvir is incorporated by low-fidelity polymerases and SARS-CoV RNA-dependent RNA polymerase (RdRp), and blocks further incorporation by these polymerases; the active triphosphate form of Sofosbuvir is not incorporated by a host-like high-fidelity DNA polymerase. Using the same molecular insight, we selected 3'-fluoro-3'-deoxythymidine triphosphate and 3'-azido-3'-deoxythymidine triphosphate, which are the active forms of two other anti-viral agents, Alovudine and AZT (an FDA-approved HIV/AIDS drug) for evaluation as inhibitors of SARS-CoV RdRp. We demonstrate the ability of two of these HIV reverse transcriptase inhibitors to be incorporated by SARS-CoV RdRp where they also terminate further polymerase extension. Given the 98% amino acid similarity of the SARS-CoV and SARS-CoV-2 RdRps, we expect these nucleotide analogues would also inhibit the SARS-CoV-2 polymerase. These results offer guidance to further modify these nucleotide analogues to generate more potent broad-spectrum anti-coronavirus agents.
ChemInform Abstract: Phenyloxazoles and Phenylthiazoles as Benzamide Bioisosteres: Synthesis and Dopamine Receptor Binding Profiles. (2000)

Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
Cobalt-Mediated Total Synthesis of (+)-Epoxydictymene (1994)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTCobalt-Mediated Total Synthesis of (+)-EpoxydictymeneTimothy F. Jamison, Soroosh Shambayati, William E. Crowe, and Stuart L. SchreiberCite this: J. Am. Chem. Soc. 1994, 116, 12, 5505–5506Publication Date (Print):June 1, 1994Publication History Published online1 May 2002Published inissue 1 June 1994https://pubs.acs.org/doi/10.1021/ja00091a079https://doi.org/10.1021/ja00091a079research-articleACS PublicationsRequest reuse permissionsArticle Views2162Altmetric-Citations107LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InRedditEmail Other access optionsGet e-AlertscloseSupporting Info (2)»Supporting Information Supporting Information Get e-Alerts
porous metal organic framework nanoparticles to address the challenges related to busulfan encapsulation (2011)

International audience
Synthesis and polymerization of bis(hexamethylene carbonate) and bis(2,2,3,3,4,4,5,5‐octafluorohexamethylene carbonate) (1996)

Abstract Bis(hexamethylene carbonate) (HC) and bis(2,2,3,3,4,4,5,5‐octafluorohexamethylene carbonate) (FHC) were synthesized starting from the corresponding diols and diphenyl carbonate in a two‐step reaction: (i) first polycondensation occurs, (ii) then ring‐closing depolymerization leads to HC and FHC, respectively. The polymerization of HC is performed with sec ‐butyllithium in toluene solution, and the corresponding polymer is obtained in high yield. Polymerization of FHC is perfomed either in tetrahydrofuran solution with dibutylmagnesium as initiator or in the melt with dibutyltin dimethoxide as initiator. Poly(HC) is a semicrystalline polymer with a melting point of 54.0°C and a glass transition temperature of −51.3°C. Poly(FHC) was obtained either as a semicrystalline material with a melting point of 40.8°C or an amorphous material with a glass transition temperature of −39.8°C. Copolymers of HC and FHC with a diad ratio of 19:60:21 were obtained by melt polymerization with dibutyltin dimethoxide as initiator. The ringchain equilibrium established during polymerization was studied for HC in toluene solution and for FHC in the melt. The concentration of the cyclic oligomers at equilibrium was determined, and for poly(HC) the characteristic ratio was calculated to be 10.0 ± 1.0.
SF3B1 homeostasis is critical for survival and therapeutic response in T cell leukemia (2022)

The production of noncanonical mRNA transcripts is associated with cell transformation. Driven by our previous findings on the sensitivity of T cell acute lymphoblastic leukemia (T-ALL) cells to SF3B1 inhibitors, we identified that SF3B1 inhibition blocks T-ALL growth in vivo with no notable associated toxicity. We also revealed protein stabilization of the U2 complex component SF3B1 via deubiquitination. Our studies showed that SF3B1 inhibition perturbs exon skipping, leading to nonsense-mediated decay and diminished levels of DNA damage response-related transcripts, such as the serine/threonine kinase <i>CHEK2</i>, and impaired DNA damage response. We also identified that SF3B1 inhibition leads to a general decrease in R-loop formation. We further demonstrate that clinically used SF3B1 inhibitors synergize with CHEK2 inhibitors and chemotherapeutic drugs to block leukemia growth. Our study provides the proof of principle for posttranslational regulation of splicing components and associated roles and therapeutic implications for the U2 complex in T cell leukemia.
Increased Systemic and Local Interleukin 9 Levels in Patients with Carotid and Coronary Atherosclerosis (2013)

Our findings show increased IL-9 levels in different atherosclerotic disorders both systemically and within the lesion, suggesting a role for the IL-9/IL-9R axis in the atherosclerotic process, potentially involving IL-17 mediated mechanisms. However, the functional consequences of these findings should be further investigated.
Is successful resection following neoadjuvant radiation therapy for borderline resectable pancreatic cancer dependent on improved tumor-vessel relationships? (2013)

4057 Background: Margin-negative (R0) surgical resection is the only potentially curative therapy for pancreatic cancer. For patients deemed borderline resectable (BL), neoadjuvant chemoradiotherapy (NRT) increases the likelihood of subsequent R0 resection and improves overall survival. Prognostic factors for achieving resection following NRT have yet to be clearly identified. Methods: Fifty consecutive patients with BL-PDAC evaluated by a multidisciplinary tumor board who received NRT from 2007-2012 were retrospectively identified. Computed tomography (CT) scans pre- and post-radiation and surgical specimens were centrally reviewed. Results: 29 patients underwent resection following NCRT, while 21 remained unresectable. Between the two groups, age, gender, mean RT dose, and proportion of pancreatic head tumors were not significantly different. Smaller tumor volume and lack of the following factors was associated with selection for resection: superior mesenteric/portal vein encasement (p=0.01), superior mesenteric artery involvement (p=0.02), ascites (p=0.01), and questionable/overt metastases (p=0.01). Notably, celiac artery involvement/encasement, common hepatic artery encasement, and percentage change in tumor volume were not significant predictors of resection (all p&gt;&gt;0.05). Interestingly, tumor volume and degree of individual vessel involvement did not significantly change from scans before and after NCRT (all p&gt;&gt;0.05). Median OS was 22.9 vs.13.0 months in resected and unresected patients, respectively (p&lt;0.001). Of resected patients, 93% had negative margins, 28% had positive nodes, 27% demonstrated &lt;10% viable tumor, and 12% had pathologic complete response at surgery. Dpc4 expression was retained in 68% of specimens with viable tumor. Conclusions: Although the apparent radiographic extent of vascular involvement does not change significantly after NRT, subsequent R0 resection rates are high, nodal involvement is low, and outcomes are similar to resected patients who receive adjuvant therapy. Resection attempts should not be deferred solely based on lack of improvement in tumor-vessel interactions.
A new herbicidal site of action: Cinmethylin binds to acyl-ACP thioesterase and inhibits plant fatty acid biosynthesis (2018)

The prevalent occurrence of herbicide resistant weeds increases the necessity for new site of action herbicides for effective control as well as to relax selection pressure on the known sites of action. As a consequence, interest increased in the unexploited molecule cinmethylin as a new solution for the control of weedy grasses in cereals. Therefore, the mechanism of action of cinmethylin was reevaluated. We applied the chemoproteomic approach cellular Target Profiling™ from Evotec to identify the cinmethylin target in Lemna paucicostata protein extracts. We found three potential targets belonging to the same protein family of fatty acid thioesterases (FAT) to bind to cinmethylin with high affinity. Binding of cinmethylin to FAT proteins from Lemna and Arabidopsis was confirmed by fluorescence-based thermal shift assay. The plastid localized enzyme FAT plays a crucial role in plant lipid biosynthesis, by mediating the release of fatty acids (FA) from its acyl carrier protein (ACP) which is necessary for FA export to the endoplasmic reticulum. GC-MS analysis of free FA composition in Lemna extracts revealed strong reduction of unsaturated C18 as well as saturated C14, and C16 FAs upon treatment with cinmethylin, indicating that FA release for subsequent lipid biosynthesis is the primary target of cinmethylin. Lipid biosynthesis is a prominent target of different herbicide classes. To assess whether FAT inhibition constitutes a new mechanism of action within this complex pathway, we compared physiological effects of cinmethylin to different ACCase and VLCFA synthesis inhibitors and identified characteristic differences in plant symptomology and free FA composition upon treatment with the three herbicide classes. Also, principal component analysis of total metabolic profiling of treated Lemna plants showed strong differences in overall metabolic changes after cinmethylin, ACCase or VLCFA inhibitor treatments. Our results identified and confirmed FAT as the cinmethylin target and validate FAT inhibition as a new site of action different from other lipid biosynthesis inhibitor classes.
Advances in semipolar InGaN laser diodes (Conference Presentation) (2017)

We present state-of-the-art performance from laser based light sources based on semipolar GaN. Recent advances toward the commercialization of blue, InGaN semipolar laser diodes are described. Additionally, we introduce next generation white light sources based on laser-pumped phosphor architectures.
Impact of chromophores on colour appearance in a computational skin model (2020)

Early diagnosis of skin cancer offers the patient more favorable treatment options. Color fidelity of skin images is a major concern for dermatologists as adoption of digital dermatoscopes is increasing rapidly. Accurate color depiction of the lesion and surrounding skin are vital in diagnostic evaluation of a lesion. We previously introduced VCT-Derma, a pipeline for dermatological Virtual Clinical Trials (VCTs) including detailed and flexible models of human skin and lesions, which represent the patient in the entire dermatoscopy-based diagnostic process. However, those initial models of skin and lesions did not properly account for tissue colors. Our new skin model accounts for tissue color appearance by incorporating chromophores (e.g., melanin, blood) into the tissue model, and simulating the optical properties of the various skin layers. The physical properties of the skin and lesion were selected from clinically plausible values. The model and simulated dermatoscope images were created in open modelling software, assuming a linear camera model. We have assumed ambient white lighting, with a 6mm distance to the camera. Our model of color appearance was characterised by comparing the brightness of the lesion to its depth. The brightness of the lesion is compared through the variability of the mean gray values of a cropped region around the lesion. We compare two skin models, one without extensive chromophore content and one with. Our preliminary evaluation of increasing chromophore content shows promise based on the results presented here. Further refinement and validation of the model is ongoing.
Deepwater Drilling with Lightweight Fluids - Essential Equipment Required (2001)

Abstract New equipment described in this paper has been developed for employing underbalanced drilling techniques on a floating drilling rig. Field trials of this equipment are being conducted on a semi-submersible vessel in the Albacora Field of the Campos Basin located offshore Brazil. The test is being conducted in a partially depleted formation with a pore pressure equivalent to approximately 7 lb/gal. The formation will be drilled slightly overbalanced during the test.