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https://www.readbyqxmd.com/read/28654100/chiral-n-n-dioxide-co-ii-promoted-asymmetric-1-3-dipolar-cycloaddition-of-nitrones-with-methyleneindolinones
#1
Dong Zhang, Chengkai Yin, Yuhang Zhou, Yali Xu, Lili Lin, Xiaohua Liu, Xiaoming Feng
A chiral N,N'-dioxide/Co(BF4)2·6H2O complex catalytic system has been developed to efficiently catalyze the asymmetric 1,3-dipolar cycloaddition of nitrones with methyleneindolinones. The corresponding chiral multisubstituted spiroisoxazolidines with three contiguous quaternary-tertiary stereocenters were obtained in moderate to high yields with excellent dr and ee values (up to 97% yield, >19 : 1 dr and 98% ee).
June 27, 2017: Chemical Communications: Chem Comm
https://www.readbyqxmd.com/read/28653223/multi-targeted-therapy-of-everolimus-in-kaposi-s-sarcoma-associated-herpes-virus-infected-primary-effusion-lymphoma
#2
Suchitra Mohanty, Amit Kumar, Piyanki Das, Sushil Kumar Sahu, Tathagata Choudhuri
Kaposi's sarcoma associated herpes virus (KSHV) infected primary effusion lymphoma (PEL) is a rare aggressive form of non-Hodgkin's lymphoma of B cells. KSHV latent and lytic antigens modulate several host cellular signalling pathways especially mammalian target of rapamycin (mTOR), STAT-3 and nuclear factor-kappa B (NF-κB) for rapid tumor progression and immune evasion. Current chemotherapeutic strategies are becoming ineffective as they kill only dividing cells and inefficient to target molecular pathways crucial for active virus replication and its survival...
June 26, 2017: Apoptosis: An International Journal on Programmed Cell Death
https://www.readbyqxmd.com/read/28652413/dopaminergic-modulation-of-synaptic-integration-and-firing-patterns-in-the-rat-entopenduncular-nucleus
#3
Hagar Lavian, Mara Almog, Ravit Madar, Yocheved Loewenstern, Izhar Bar-Gad, Eitan Okun, Alon Korngreen
Dopamine is known to differentially modulate the impact of cortical input to the striatum between the direct and indirect pathways of the basal ganglia (BG). However, the role of extrastriatal dopamine receptors (DRs) in BG information processing is less clear. To investigate the role of extrastriatal DRs we studied their distribution and function in one of the output nuclei of the rodent's BG, the entopeduncular nucleus (EP). qRT-PCR indicated that all DR subtypes were expressed by EP neurons, suggesting that both D1-like receptors (D1LRs) and D2-like receptors (D2LRs) were likely to affect information processing in the EP...
June 26, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28652209/heightened-autoantibody-immune-response-to-citrullinated-calreticulin-in-bronchiectasis-implications-for-rheumatoid-arthritis
#4
Alex Clarke, Elizabeth Perry, Clive Kelly, Anthony De Soyza, Kate Heesom, Leslie I Gold, William Ollier, David Hutchinson, P Eggleton
Calreticulin (CRT) and citrullinated (citCRT) are implicated in rheumatoid arthritis (RA) pathology. citCRT binds to RA shared epitopes (SE) on HLA-DR molecules with high affinity and triggers pro-inflammatory events in adjacent cells. The aim of the study was to detect the presence of citCRT prior to developing RA and evaluate if citCT is a target for autoantibodies in RA cohorts with and without lung disease. Antibodies were assessed by ELISA against native CRT, citCRT and general protein citrullination, in sera from 50 RA patients without lung disease, 122 bronchiectasis (BR) patients, 52 bronchiectasis patients with RA (BRRA), 87 asthma patients and 77 healthy controls (HC)...
June 23, 2017: International Journal of Biochemistry & Cell Biology
https://www.readbyqxmd.com/read/28652068/epigenomic-susceptibility-to-the-social-world-plausible-paths-to-a-newest-morbidity
#5
W Thomas Boyce
This paper-presented on the celebratory occasion of Dr. Robert Haggerty's 91st birthday-describes how a 1962 article by Dr. Haggerty and his colleague Dr. Roger Meyer launched a previously unexplored, pediatric research enterprise by asserting that: "There are little precise data to explain why one person becomes ill with an infecting agent and another not." Noting a prospective association between family stressors and the acquisition of beta-hemolytic streptococcal infections, the article introduced a generation of young academic pediatricians-the author of the present paper among them-to the possibility of causal linkages among children's adversity exposures, compromised immunological processes, and the development of immune-mediated, acute or chronic diseases of childhood...
June 23, 2017: Academic Pediatrics
https://www.readbyqxmd.com/read/28651775/temporary-removal-departing-from-the-essential-features-of-a-high-quality-systematic-review-of-psychotherapy-a-response-to-%C3%A3-st-2014-and-recommendations-for-improvement
#6
Paul W B Atkins, Joseph Ciarrochi, Brandon A Gaudiano, Jonathan B Bricker, James Donald, Graciela Rovner, Matthew Smout, Fredrik Livheim, Tobias Lundgren, Steven C Hayes
Please note that this is not a retraction, but a temporary take down. It will be published once Dr Ost's response has been received (it is expected sometime in approximately the next couple of months).The full Elsevier Policy on Article Withdrawal can be found at https://www.elsevier.com/about/our-business/policies/article-withdrawal.
May 29, 2017: Behaviour Research and Therapy
https://www.readbyqxmd.com/read/28650455/clinical-impact-of-nk-cell-reconstitution-after-reduced-intensity-conditioned-unrelated-cord-blood-transplantation-in-patients-with-acute-myeloid-leukemia-analysis-of-a-prospective-phase-ii-multicenter-trial-on-behalf-of-the-soci%C3%A3-t%C3%A3-fran%C3%A3-aise-de-greffe-de
#7
S Nguyen, A Achour, L Souchet, S Vigouroux, P Chevallier, S Furst, A Sirvent, J-O Bay, G Socié, P Ceballos, A Huynh, J Cornillon, S Francois, F Legrand, I Yakoub-Agha, G Michel, N Maillard, G Margueritte, S Maury, M Uzunov, C-E Bulabois, M Michallet, L Clement, C Dauriac, K Bilger, J Lejeune, V Béziat, V Rocha, B Rio, S Chevret, V Vieillard
Unrelated cord blood transplantation (UCBT) after a reduced intensity conditioning regimen (RIC) has extended the use of UCB in elderly patients and those with co-morbidities without an HLA-identical donor, although post-transplant relapse remains a concern in high-risk acute myeloid leukemia (AML) patients. HLA incompatibilities between donor and recipient might enhance the alloreactivity of natural killer (NK) cells after allogeneic hematopoietic stem-cell transplantation (HSCT). We studied the reconstitution of NK cells and KIR-L mismatch in 54 patients who underwent a RIC-UCBT for AML in CR in a prospective phase II clinical trial...
June 26, 2017: Bone Marrow Transplantation
https://www.readbyqxmd.com/read/28650341/two-rheumatoid-arthritis-specific-autoantigens-correlate-microbial-immunity-with-autoimmune-responses-in-joints
#8
Annalisa Pianta, Sheila L Arvikar, Klemen Strle, Elise E Drouin, Qi Wang, Catherine E Costello, Allen C Steere
In rheumatoid arthritis (RA), immunological triggers at mucosal sites, such as the gut microbiota, may promote autoimmunity that affects joints. Here, we used discovery-based proteomics to detect HLA-DR-presented peptides in synovia or peripheral blood mononuclear cells and identified 2 autoantigens, N-acetylglucosamine-6-sulfatase (GNS) and filamin A (FLNA), as targets of T and B cell responses in 52% and 56% of RA patients, respectively. Both GNS and FLNA were highly expressed in synovia. GNS appeared to be citrullinated, and GNS antibody values correlated with anti-citrullinated protein antibody (ACPA) levels...
June 26, 2017: Journal of Clinical Investigation
https://www.readbyqxmd.com/read/28650159/enantioselective-vinylogous-michael-michael-cascade-reactions-of-3-alkylidene-oxindoles-and-nitroolefin-enoates
#9
Junjun Feng, Xin Li
A novel bifunctional squaramide-catalyzed vinylogous Michael-Michael cascade reaction of 3-alkylidene oxindoles with nitroolefin enoates was developed. This convenient, one-pot cascade reaction serves as a powerful tool for the enantioselective construction of potential bioactive chiral chromans, which have three continuous tertiary stereocenters, in moderate to good yields (up to 85%) with excellent stereoselectivities (up to >19:1 dr and >99% ee).
June 26, 2017: Journal of Organic Chemistry
https://www.readbyqxmd.com/read/28650044/one-pot-asymmetric-synthesis-of-a-spiro-dihydrofurocoumarin-pyrazolone-scaffold-by-a-michael-addition-i2-mediated-cyclization-sequence
#10
Ai-Bao Xia, Xiao-Long Zhang, Cheng-Ke Tang, Kai-Xiang Feng, Xiao-Hua Du, Dan-Qian Xu
An asymmetric formal one-pot reaction of 4-hydroxycoumarins with unsaturated pyrazolones has been developed by merging a chiral bifunctional organocatalyst with molecular iodine, which furnished a series of optically active spiro[dihydrofurocoumarin/pyrazolone] heterocycles with spiro quaternary stereogenic centers in moderate to excellent yields (up to 99%) with excellent diastereoselectivities (up to >99 : 1 dr) and good to excellent enantioselectivities (up to 99% ee). The application in the gram-scale synthesis of chiral spiro[dihydrofurocoumarin/pyrazolone] compounds was also successfully realized...
June 26, 2017: Organic & Biomolecular Chemistry
https://www.readbyqxmd.com/read/28649296/clinical-profile-and-outcome-of-diabetic-foot-ulcer-a-view-from-tertiary-care-hospital-in-semarang-indonesia
#11
Tjokorda Gde Dalem Pemayun, Ridho M Naibaho
Background: This study attempted to determine the disease burden in terms of clinical profile and outcome of diabetic foot ulcer (DFU) admissions at a tertiary care hospital in a developing country. Methods: In this descriptive study, the data were collected from the medical record of diabetic patients with foot ulcer who were treated in Dr. Kariadi General Hospital during a 3-year period. The demographic characteristic, type of foot lesion, etiology, isolated microorganism, treatment, and outcome were reviewed...
2017: Diabetic Foot & Ankle
https://www.readbyqxmd.com/read/28649224/the-video-head-impulse-test
#12
REVIEW
G M Halmagyi, Luke Chen, Hamish G MacDougall, Konrad P Weber, Leigh A McGarvie, Ian S Curthoys
In 1988, we introduced impulsive testing of semicircular canal (SCC) function measured with scleral search coils and showed that it could accurately and reliably detect impaired function even of a single lateral canal. Later we showed that it was also possible to test individual vertical canal function in peripheral and also in central vestibular disorders and proposed a physiological mechanism for why this might be so. For the next 20 years, between 1988 and 2008, impulsive testing of individual SCC function could only be accurately done by a few aficionados with the time and money to support scleral search-coil systems-an expensive, complicated and cumbersome, semi-invasive technique that never made the transition from the research lab to the dizzy clinic...
2017: Frontiers in Neurology
https://www.readbyqxmd.com/read/28648396/25-years-of-serving-the-community-with-ribosomal-rna-gene-reference-databases-and-tools
#13
Frank Oliver Glöckner, Pelin Yilmaz, Christian Quast, Jan Gerken, Alan Beccati, Andreea Ciuprina, Gerrit Bruns, Pablo Yarza, Jörg Peplies, Ralf Westram, Wolfgang Ludwig
SILVA (lat. forest) is a comprehensive web resource, providing services around up to date, high-quality datasets of aligned ribosomal RNA gene (rDNA) sequences from the Bacteria, Archaea, and Eukaryota domains. SILVA dates back to the year 1991 when Dr. Wolfgang Ludwig from the Technical University Munich started the integrated software workbench ARB (lat. tree) to support high-quality phylogenetic inference and taxonomy based on the SSU and LSU rDNA marker genes. At that time, the ARB project maintained both, the sequence reference datasets and the software package for data analysis...
June 22, 2017: Journal of Biotechnology
https://www.readbyqxmd.com/read/28647760/dr-solco-tromp-and-the-tromp-award
#14
J Scott Greene, Wop J Rietveld
The Tromp Award is the highest honor awarded by the International Society of Biometeorology (ISB). The award acknowledges outstanding research in biometeorology by a scientist under the age of 35 and was established in conjunction with the Tromp Foundation and the ISB. In honor of the 60th anniversary of the ISB, this article will provide a brief summary of the life of Dr. Solco Tromp and of the six awardees of the Tromp Award since the inaugural issuance of the award in 1999. The Tromp Award was established in part to recognize and support the efforts of young biometeorological professionals...
June 24, 2017: International Journal of Biometeorology
https://www.readbyqxmd.com/read/28647749/expression-of-high-mobility-group-box-1-protein-hmgb1-and-toll-like-receptor-9-tlr9-in-retinas-of-diabetic-rats
#15
Shuang Jiang, Xiaolong Chen
BACKGROUND Diabetic retinopathy (DR) and diabetic optic neuropathy are important complications of diabetes mellitus (DM) which can lead to blindness in diabetic patients. Recent studies showed that chronic low-grade inflammation is thought to be one of the important pathophysiological mechanisms in the occurrence and development of DR and diabetes optic neuropathy. This study explored the expressions of inflammatory factors HMGB-1 and TLR9. MATERIAL AND METHODS SD rats were randomly divided into a diabetic mellitus group and a control group...
June 25, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/28647302/variable-validity-of-computer-extracted-problem-lists-for-complications-of-diabetes-mellitus-within-the-va-greater-los-angeles-health-system
#16
Stephan Chiu, John Davis, JoAnn Giaconi, Aaron Lee, Greg Orshansky, Leonard Kleinman, Irena Tsui
PURPOSE: Electronic health data in the form of International Classification of Disease, Ninth Revision (ICD-9) codes is routinely used for clinical research, yet the accuracy of specific diagnoses is largely unknown. The purpose of this study is to assess the validity of computer extracted problem lists for diabetic retinopathy (DR) and other complications of diabetes mellitus (DM) within the VA Greater Los Angeles Health Administration (VHAGLA). METHODS: The study population consisted of patients at the VHAGLA with an ICD-9 diagnosis of DM between Jan 1st 1999 and March 22nd 2016 with visits to the eye clinic...
June 21, 2017: Diabetes & Metabolic Syndrome
https://www.readbyqxmd.com/read/28646817/2017-eugene-l-gottlieb-jco-student-of-the-year-dr-moataz-elmahdy
#17
Philip B Vogels
No abstract text is available yet for this article.
March 2017: Journal of Clinical Orthodontics: JCO
https://www.readbyqxmd.com/read/28646302/t-regulatory-cells-exhibit-a-biphasic-response-to-prolonged-endurance-exercise-in-humans
#18
Tom Clifford, Matthew J Wood, Philip Stocks, Glyn Howatson, Emma J Stevenson, Catharien M U Hilkens
PURPOSE: T-regulatory cells (Tregs) are a sub-population of lymphocytes that act to suppress aberrant immune responses. We investigated changes in the numbers of naïve and terminally differentiated Tregs in the peripheral blood to establish their role in the immuno-suppressive response to prolonged exercise. METHODS: Blood was drawn from seventeen experienced runners (age 40 ± 12 years; height 1.75 ± 0.08 m; mass 71.4 ± 10.8 kg) before, ~1 h after (POST-1h), and on the day following the marathon (POST-1d)...
June 23, 2017: European Journal of Applied Physiology
https://www.readbyqxmd.com/read/28646072/genetic-and-environmental-interactions-modify-the-risk-of-diabetes-related-autoimmunity-by-6-years-of-age-the-teddy-study
#19
Jeffrey P Krischer, Kristian F Lynch, Åke Lernmark, William A Hagopian, Marian J Rewers, Jin-Xiong She, Jorma Toppari, Anette-G Ziegler, Beena Akolkar
OBJECTIVE: We tested the associations between genetic background and selected environmental exposures with respect to islet autoantibodies and type 1 diabetes. RESEARCH DESIGN AND METHODS: Infants with HLA-DR high-risk genotypes were prospectively followed for diabetes-related autoantibodies. SNPs came from the Illumina ImmunoChip and environmental exposure data were by parental report. Children were followed to age 6 years. RESULTS: Insulin autoantibodies occurred earlier than GAD antibody (GADA) and then declined, while GADA incidence rose and remained constant (significant in HLA-DR4 but not in the DR3/3 children)...
June 23, 2017: Diabetes Care
https://www.readbyqxmd.com/read/28645221/obituary-dr-dimitri-tassiopoulos
#20
Nancy Phaswana-Mafuya
No abstract text is available yet for this article.
December 2017: SAHARA J: Journal of Social Aspects of HIV/AIDS Research Alliance
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