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https://www.readbyqxmd.com/read/29145334/concurrent-one-stage-total-knee-and-hip-arthroplasty-due-to-sequel-of-juvenile-rheumatoid-arthritis-a-case-report
#1
Afshin Taheriazam, Amin Saeidinia
RATIONALE: Rheumatoid arthritis is a chronic systemic connective tissue disease. Total hip and knee arthroplasties are common major orthopaedic procedures worldwide. PATIENT CONCERNS: To date, no studies have presented 1-stage concurrent total hip arthroplasty (THA) and total knee arthroplasty (TKA) in patients with rheumatoid arthritis (RA). We reported a case which is, to our knowledge, the first description of both THA and TKA in a patient with RA simultaneously...
November 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29145119/amine-functionalized-magnetic-bamboo-based-activated-carbon-adsorptive-removal-of-ciprofloxacin-and-norfloxacin-a-batch-and-fixed-bed-column-study
#2
Xiaoming Peng, Fengping Hu, Tao Zhang, Fengxian Qiu, Hongling Dai
Amine-functionalized magnetic bamboo-based activated carbon (AFM-BAC) derived from bamboo products wastes were employed for effective adsorption of fluoroquinolone antibiotics ciprofloxacin (CIP) and norfloxacin (NOR) through batch processing. The effects of factors on the adsorption of both antibiotics were studied. The studies of various factors influencing the adsorption behavior indicated that the maximum adsorption capacities for two antibiotics adsorption were observed in weakly acidic condition and the adsorption amounts of two antibiotics increased with the increase of zwitterionic form, implying the importance of zwitterionic form, and the adsorption process is spontaneous and endothermic...
November 2, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/29144766/from-ketones-amines-and-carbon-monoxide-to-4-quinolones-palladium-catalyzed-oxidative-carbonylation
#3
Jiwei Wu, Yuchen Zhou, Ting Wu, Yi Zhou, Chien-Wei Chiang, Aiwen Lei
A novel method of palladium-catalyzed oxidative carbonylation of ketones, amines, and carbon monoxide for the synthesis of 4-quinolones has been developed. This protocol provides a straightforward route to construct useful 4-quinolone derivatives from inexpensive chemicals.
November 16, 2017: Organic Letters
https://www.readbyqxmd.com/read/29144764/synthesis-of-polycyclic-imidazolidinones-via-amine-redox-annulation
#4
Zhengbo Zhu, Xin Lv, Jason E Anesini, Daniel Seidel
α-Ketoamides undergo redox-annulations with cyclic secondary amines, such as 1,2,3,4-tetrahydroisoquinoline, pyrrolidine, piperidine, and morpholine. Catalytic amounts of benzoic acid significantly accelerate these transformations. This approach provides polycyclic imidazolidinone derivatives in typically good yields.
November 16, 2017: Organic Letters
https://www.readbyqxmd.com/read/29144750/investigation-of-the-physical-and-bioactive-properties-of-bromo-and-iodo-containing-sponge-derived-compounds-possessing-an-oxyphenylethanamine-core
#5
Erin P McCauley, Hanh Lam, Nicholas Lorig-Roach, Justin Luu, Cameron Lloyd, Karen Tenney, Halina Pietraszkiewicz, Cristina Diaz, Frederick A Valeriote, Victoria Auerbuch, Phillip Crews
This research set out to identify compounds from marine sponges that can act as bacterial virulence blockers. Extracts from a total of 80 sponges collected from throughout Indonesia were screened in a high-throughput NF-κB-based screen that identifies compounds capable of inhibiting the bacterial type III secretion system (T3SS) in Yersinia pseudotuberculosis. An extract that was shown to inhibit T3SS-driven NF-κB expression was obtained from an Iotrochota cf. iota sponge and was the source of seven new bromo- and iodo-containing compounds, all of which contain a 2-(4-oxyphenyl)ethan-1-amine core...
November 16, 2017: Journal of Natural Products
https://www.readbyqxmd.com/read/29144557/penile-warty-mucoepidermoid-carcinoma-with-features-of-stratified-mucin-producing-intraepithelial-lesion-and-invasive-stratified-mucin-producing-carcinoma
#6
Kenji Yorita, Naoto Kuroda, Takushi Naroda, Masato Tamura, Chisato Ohe, Mukul Divatia, Mahul B Amin, Antonio L Cubilla, Dimitry V Kazakov, Ondrej Hes, Michael Michal, Michal Michal
AIMS: Stratified mucin-producing intraepithelial lesion (SMILE) and invasive stratified mucin-producing carcinoma (ISMC) are recently described cervical and penile lesions. We report an unusual case of mixed variant of penile squamous cell carcinomas with warty, usual and mucoepidermoid SMILE/ISMC features. METHODS AND RESULTS: A 62-year-old Japanese man had a glans penis lesion of one and a half years duration, suggesting malignancy. Partial penectomy and left inguinal lymphadenectomy were performed...
November 16, 2017: Histopathology
https://www.readbyqxmd.com/read/29144073/evaluation-of-certain-food-additives
#7
(no author information available yet)
This report represents the conclusions of a Joint FAO/WHO Expert Committee convened to evaluate the safety of various food additives, including flavouring agents, with a view to concluding as to safety concerns and to preparing specifications for identity and purity. The first part of the report contains a general discussion of the principles governing the toxicological evaluation of and assessment of dietary exposure to food additives, including flavouring agents. A summary follows of the Committee’s evaluations of technical, toxicological and dietary exposure data for 10 food additives (Allura Red AC; carob bean gum; lutein esters from Tagetes erecta; octenyl succinic acid (OSA)– modified gum arabic; pectin; Quinoline Yellow; rosemary extract; steviol glycosides; tartrazine; and xanthan gum) and five groups of flavouring agents (alicyclic, alicyclic-fused and aromatic-fused ring lactones; aliphatic and aromatic amines and amides; aliphatic secondary alcohols, ketones and related esters; cinnamyl alcohol and related substances; and tetrahydrofuran and furanone derivatives)...
2017: World Health Organization Technical Report Series
https://www.readbyqxmd.com/read/29144021/quantitative-extracellular-matrix-proteomics-suggests-cell-wall-reprogramming-in-host-specific-immunity-during-vascular-wilt-caused-by-fusarium-oxysporum-in-chickpea
#8
Eman Elagamey, Kanika Narula, Arunima Sinha, Sudip Ghosh, Magdi A E Abdellatef, Niranjan Chakraborty, Subhra Chakraborty
Extracellular matrix (ECM) is the unique organelle that perceives stress signals and reprograms molecular events of host cell during patho-stress. However, our understanding of how ECM dictates plant immunity is largely unknown. Vascular wilt caused by the soil borne filamentous fungus Fusarium oxysporum is a major impediment for global crop productivity. To elucidate the role of ECM proteins and molecular mechanism associated with cell wall mediated immunity, the temporal changes of ECM proteome was studied in vascular wilt resistant chickpea cultivar upon F...
November 16, 2017: Proteomics
https://www.readbyqxmd.com/read/29143998/oxytocin-mediates-the-beneficial-effects-of-the-exercise-training-on-breast-cancer
#9
Ali Mohammad Alizadeh, Zahra Heydari, Mostafa Rahimi, Behzad Bazgir, Hossein Shirvani, Sadaf Alipour, Yassaman Heidarian, Solmaz Khalighfard, Amin Isanejad
Exercise training can affect the breast tumor growth. We hypothesized that exercise training may reduce breast tumor growth by inducing Oxytocin (OT) secretion and its related signaling pathways such as PI3K/AKT and ERK. Therefore fifty-six BALB/c mice were equally divided into seven groups to study the effects of OT and atosiban (an oxytocin receptor antagonist) together with the interval exercise training on breast tumor growth, as well as tumor related signaling pathways including PI3K/AKT and ERK. Animal weight, OT plasma level, tumor weight and volume measured at the end of study...
November 16, 2017: Experimental Physiology
https://www.readbyqxmd.com/read/29143993/how-to-measure-size-of-tubal-ectopic-pregnancy-on-ultrasound-scan
#10
K Rajah, V Goodhart, K P Zamora, T Amin, E Jauniaux, D Jurkovic
OBJECTIVE: To identify the preoperative ultrasound measurements for assessing the size of tubal ectopic pregnancy which correlate best with the findings at surgery. METHODS: We conducted a prospective study of all women with a conclusive transvaginal ultrasound diagnosis of tubal ectopic pregnancy over a 10-month period. In each case, we measured the total size of the ectopic pregnancy by placing the calipers on the outer edges of the visible trophoblastic tissue...
November 16, 2017: Ultrasound in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/29143992/teaching-old-compounds-new-tricks-ddq-photocatalyzed-c-h-amination-of-arenes-with-carbamates-urea-and-n-heterocycles
#11
Somnath Das, Palani Natarajan, Burkhard König
The C-H amination of benzene derivatives was achieved using DDQ as photocatalyst and BocNH₂ as the amine source under aerobic conditions and visible light irradiation. Electron-deficient and electron-rich benzenes react as substrates with moderate to good product yields. The amine scope of the reaction comprises Boc-amine, carbamates, pyrazoles, sulfonimide and urea. Preliminary mechanistic investigations indicate a charge transfer complex between the amine and DDQ as essential intermediate of the reaction...
November 16, 2017: Chemistry: a European Journal
https://www.readbyqxmd.com/read/29143921/dichloroacetate-induced-intracellular-acidification-in-glioblastoma-in-vivo-detection-using-aacid-cest-mri-at-9-4%C3%A2-tesla
#12
Mohammed Albatany, Alex Li, Susan Meakin, Robert Bartha
Intracellular pH (pHi) plays an important role in the maintenance of normal cell function, and is maintained within a narrow range by the activity of transporters located at the plasma membrane. Modulation of tumor pHi may influence proliferation, apoptosis, chemotherapy resistance, and thermosensitivity. Chemical exchange saturation transfer (CEST) is a novel MRI contrast mechanism that is dependent on cellular pH. Amine and amide concentration-independent detection (AACID) is a recently developed CEST contrast method that is intracellular pH (pHi) weighted...
November 16, 2017: Journal of Neuro-oncology
https://www.readbyqxmd.com/read/29143917/lambda-phage-nanoparticles-displaying-her2-derived-e75-peptide-induce-effective-e75-cd8-t-response
#13
Atefeh Arab, Jessica Nicastro, Roderick Slavcev, Atefeh Razazan, Nastaran Barati, Amin Reza Nikpoor, Amir Abbas Momtazi Brojeni, Fatemeh Mosaffa, Ali Badiee, Mahmoud Reza Jaafari, Javad Behravan
We have investigated the in vitro immunogenicity and in vivo prophylactic and therapeutic potential of lambda (λ) phage particles displaying the E75 peptide (derived from HER2 protein) in an implantable TUBO breast tumor model of BALB/c mice. The mice were immunized with the E75-displaying phage (λF7-gpD::E75) every 2-week intervals over a 6-week period, and the generated immune responses were studied. Results showed in vitro induction of immune responses by the λF7 (gpD::E75) construct compared to the control λF7 and buffer groups...
November 16, 2017: Immunologic Research
https://www.readbyqxmd.com/read/29143847/1-3-dibromo-5-5-dimethylhydantoin-mediated-oxidative-amidation-of-terminal-alkenes-in-water
#14
Chunhua Ma, Guojie Fan, Ping Wu, Zhi Li, Yang Zhou, Qingjie Ding, Wei Zhang
A variety of terminal alkenes were converted to the corresponding amides in yields of 25 to 86% in water via treatment with 1,3-dibromo-5,5-dimethylhydantoin, followed by reaction with molecular iodine and aq. NH3 (or amine) in one pot. This metal- and organic solvent-free protocol is not only suitable for styrene derivatives, but also, for the first time, works well on terminal aliphatic alkenes.
November 16, 2017: Organic & Biomolecular Chemistry
https://www.readbyqxmd.com/read/29143834/cobalt-nickel-and-iron-complexes-of-8-hydroxyquinoline-di-2-picolyl-amine-for-light-driven-hydrogen-evolution
#15
Nadia Alessandra Carmo Dos Santos, Mirco Natali, Elena Badetti, Klaus Wurst, Giulia Licini, Cristiano Zonta
Novel cobalt, nickel, and iron complexes based on the pentadentate 8-hydroxyquinoline-di(2-picolyl)amine ligand were synthesized and thoroughly characterized. X-ray structures of both the cobalt and iron complexes were also obtained, showing the tendency to adopt a pseudo-octahedral geometry by coordination of an additional sixth ligand. These metal complexes were then studied as potential hydrogen-evolving catalysts (HECs) under both electrochemical and light-driven conditions. In particular, two different photochemical systems were tested involving either Ru(bpy)3(2+)/ascorbic acid or Ir(ppy)2(bpy)(+)/TEA sensitizer/sacrificial donor couples...
November 16, 2017: Dalton Transactions: An International Journal of Inorganic Chemistry
https://www.readbyqxmd.com/read/29143782/sustainable-bio-based-phenol-formaldehyde-resoles-using-hydrolytically-depolymerized-kraft-lignin
#16
Homaira Siddiqui, Nubla Mahmood, Zhongshun Yuan, Ferdinando Crapulli, Luana Dessbesell, Amin Rizkalla, Ajay Ray, Chunbao Charles Xu
In this study bio-based bio-phenol-formaldehyde (BPF) resoles were prepared using hydrolytically depolymerized Kraft lignin (DKL) as bio-phenol to partially substitute phenol. The effects of phenol substitution ratio, weight-average molecular weight (Mw) of DKL and formaldehyde-to-phenol (F/P) ratio were also investigated to find the optimum curing temperature for BPF resoles. The results indicated that DKL with Mw ~ 1200 g/mol provides a curing temperature of less than 180 °C for any substitution level, provided that F/P ratios are controlled...
October 28, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/29143469/reaction-of-thiocarbonyl-fluoride-formed-from-difluorocarbene-with-amines
#17
Ji-Chang Xiao, Jiao Yu, Jinhong Lin
The reaction of thiocarbonyl fluoride generated from difluorocarbene with various amines under mild conditions is described. Secondary amines, primary amines, and o-phenylenediamines are converted to thiocarbamoyl fluorides, isothiocyanates, and difluoromethylthiolated heterocycles, respectively. Thiocarbamoyl fluorides were further transformed into trifluoromethylated amines using a one-pot process. As thiocarbonyl fluoride is generated in situ and is rapidly fully converted in one pot under mild conditions, no special safety precautions are needed...
November 16, 2017: Angewandte Chemie
https://www.readbyqxmd.com/read/29143431/multinuclear-nmr-and-diffusion-studies-of-quaternary-amine-based-ionic-liquids
#18
David Newhouse, Krishnan Damodaran
No abstract text is available yet for this article.
November 16, 2017: Magnetic Resonance in Chemistry: MRC
https://www.readbyqxmd.com/read/29143422/atropoenantioselective-redox-neutral-amination-of-biaryls-via-borrowing-hydrogen-and-dynamic-kinetic-resolution
#19
Jian Wang, Jianwei Zhang
We report here a novel atropoenantioselective redox-neutral amination of biaryls triggered by a cascade of borrowing hydrogen and DKR strategy under the co-catalysis of chiral Ir-complex and achiral Brønsted acid. This protocol features broad substrate scope and good functional group tolerance, and allows the rapid assembly of axially chiral biaryls in good to high yields and with high to excellent enantioselectivities.
November 16, 2017: Angewandte Chemie
https://www.readbyqxmd.com/read/29142436/high-performance-thin-layer-chromatographic-densitometric-quantification-and-recovery-of-bioactive-compounds-for-identification-of-elite-chemotypes-of-gloriosa-superba-l-collected-from-sikkim-himalayas-india
#20
Ankita Misra, Pushpendra Kumar Shukla, Bhanu Kumar, Jai Chand, Poonam Kushwaha, Md Khalid, Ajay Kumar Singh Rawat, Sharad Srivastava
Background: Gloriosa superba L. (Colchicaceae) is used as adjuvant therapy in gout for its potential antimitotic activity due to high colchicine(s) alkaloids. Objective: This study aimed to develop an easy, cheap, precise, and accurate high-performance thin-layer chromatographic (HPTLC) validated method for simultaneous quantification of bioactive alkaloids (colchicine and gloriosine) in G. superba L. and to identify its elite chemotype(s) from Sikkim Himalayas (India)...
October 2017: Pharmacognosy Magazine
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