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https://www.readbyqxmd.com/read/28822519/high-sensitive-c-reactive-protein-and-interleukin-6-in-atrial-fibrillation-with-rheumatic-mitral-stenosis-from-indian-cohort
#1
Gautam Sharma, Sudhir Shetkar, Ashu Bhasin, Lakshmy Ramakrishnan, Rajnish Juneja, Nitish Naik, Ambuj Roy, Sivasubramanian Ramakrishnan, Balram Bhargava, Vinay Kumar Bahl
INTRODUCTION: Presence of chronic low grade inflammation has often been implicated in the etiology of atrial fibrillation (AF). Whether pre-existing inflammatory state promotes AF or initiation of AF activates inflammation is a dilemma among clinicians. This study investigates the role of high sensitive C reactive protein (hs-CRP) and interleukin 6 (IL-6) in AF with rheumatic mitral stenosis (Rh-MS) as markers of chronic inflammation. METHODS: This case control cohort included sixty five (n=65) Rh-MS patients having other valve lesions as trivial to mild...
July 2017: Indian Heart Journal
https://www.readbyqxmd.com/read/28821883/synthesis-of-pincer-type-extractants-for-selective-extraction-of-palladium-from-pgms-an-improved-liquid-liquid-extraction-approach-to-current-refining-processes
#2
Muniyappan Rajiv Gandhi, Manabu Yamada, Kazutoshi Haga, Atsushi Shibayama
SCS pincer ligands 1-4 were synthesised, and their ability to extract Pd(II) from HCl and HNO3 media was studied. The Pd(II) extraction properties of 1-4 were compared with those of commercial extractants (DOS and LIX(®)84-I) in kerosene. 1 and 2 showed superior Pd(II) extractability (E% = 99.9) relative to DOS and LIX(®)84-I from 0.1-8.0 M HCl and to DOS from 0.1-8.0 M HNO3 and mixed HCl + HNO3 media. The Pd(II) extraction rate, acid durability, the most suitable organic/aqueous (O/A) phase ratio, and Pd(II) loading capacity of extractants 1, 2, and DOS were evaluated...
August 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28821046/water-sorption-in-microfibrillated-cellulose-mfc-the-effect-of-temperature-and-pretreatment
#3
Çağlar Meriçer, Matteo Minelli, Marco Giacinti Baschetti, Tom Lindström
Water sorption behavior of two different microfibrillated cellulose (MFC) films, produced by delamination of cellulose pulp after different pretreatment methods, is examined at various temperatures (16-65°C) and up to 70% RH. The effect of drying temperature of MFC films on the water uptake is also investigated. The obtained solubility isotherms showed the typical downward curvature at moderate RH, while no upturn is observed at higher RH; the uptakes are in line with characteristic values for cellulose fibers...
October 15, 2017: Carbohydrate Polymers
https://www.readbyqxmd.com/read/28820201/co2-electroreduction-performance-of-a-single-transition-metal-atom-supported-on-porphyrin-like-graphene-a-computational-study
#4
Zhongxu Wang, Jingxiang Zhao, Qinghai Cai
Searching for low-cost, efficient, and stable electrocatalysts for CO2 electroreduction (CO2ER) reactions is highly desirable for the reduction of CO2 emission and its conversion into useful products, but remains a great challenge. In this work, single transition metal atoms supported on porphyrin-like graphene catalysts, i.e., TMN4/graphene, acting as electrocatalysts for CO2 reduction were explored by means of comprehensive density functional theory (DFT) computations. Our results revealed that these anchored TM atoms possess high stability due to their strong hybridization with the unsaturated N atoms of the substrate and function as the active sites...
August 18, 2017: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/28817509/high-intensity-exercise-enhances-conduit-artery-vascular-function-in-older-adults
#5
Erika Iwamoto, Josh M Bock, Darren P Casey
PURPOSE: Modulation of vascular function follows an exercise intensity-dependent pattern in young adults. This study aimed to investigate the potential intensity-dependent effects of an acute bout of exercise on conduit and resistance artery function in healthy older adults. METHODS: Eleven healthy older adults (5 males/6 females, 66±1 years) completed 30 minutes of recumbent cycling at 50-55% (low-intensity) and 75-80% (high-intensity) of their age-predicted maximal heart rate on two separate study visits...
August 16, 2017: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/28816438/interfacial-mechanisms-of-water-vapor-sorption-into-cellulose-nanofibril-films-as-revealed-by-quantitative-models
#6
Minna Hakalahti, Marco Faustini, Cédric Boissière, Eero Kontturi, Tekla Tammelin
Humidity is an efficient instrument for facilitating changes in local architectures of 2-dimensional surfaces assembled from nanoscaled biomaterials. Here, complementary surface-sensitive methods are used to collect explicit and precise experimental evidence on the water vapor sorption into (2,2,6,6-tetramethylpiperidin-1-yl)oxyl (TEMPO) oxidized cellulose nanofibril (CNF) thin film over the relative humidity (RH) range from 0 to 97%. Changes in thickness and mass of the film due to water vapor uptake are tracked using Spectroscopic Ellipsometry and Quartz Crystal Microbalance with Dissipation monitoring, respectively...
August 17, 2017: Biomacromolecules
https://www.readbyqxmd.com/read/28816049/trifluoromethylthiolation-based-bifunctionalization-of-diazocarbonyl-compounds-by-rhodium-catalysis
#7
Marvin Lübcke, Weiming Yuan, Kálmán J Szabó
A new Rh-catalyzed, three-component reaction for the oxytrifluoromethylthiolation of α-diazoketones was developed. The SCF3 functionality was introduced using a stable dibenzenesulfonimide reagent under mild conditions. Alcohols, acetals, and ethers were used as the alkoxy sources. Cyclic ethers underwent a trifunctionalization reaction through the introduction of SCF3, OR, and N(SO2Ph)2 substituents in a single step.
August 17, 2017: Organic Letters
https://www.readbyqxmd.com/read/28816046/rhodium-iii-catalyzed-c-h-activation-of-nitrones-and-annulative-coupling-with-nitroalkenes
#8
Dachang Bai, Qingqian Jia, Teng Xu, Qiuqiu Zhang, Fen Wu, Chaorui Ma, Bingxian Liu, Junbiao Chang, Xingwei Li
Rh(III)-catalyzed synthesis of nitro-functionalized indenes has been realized via C-H activation of arylnitrones and annulation with nitroolefins. The reaction proceeded in moderate to high yields with good functional group tolerance under ambient atmosphere.
August 17, 2017: Journal of Organic Chemistry
https://www.readbyqxmd.com/read/28815618/effect-on-gene-expression-of-three-allelic-variants-in-gata-motifs-of-abo-rhd-and-rhce-regulatory-elements
#9
Katie Fennell, Roser Hoffman, Ken Yoshida, Sadahiko Iwamoto, Lavendri Govender, Kuben Vather, Ashika Sookraj, Ute Jentsch, Chantale Pambrun, Catherine McAuley, Margaret A Keller, Gorka Ochoa-Garay
BACKGROUND: Only a few genetic variants have been reported in regulatory elements of blood group genes. Most of them affect GATA motifs, binding sites for the GATA-1 transcription factor. STUDY DESIGN AND METHODS: Samples from two patients and one donor with unusual or discrepant serology for ABO, RhD, and RhCE antigens were analyzed by DNA sequencing. Analyzed regions included the coding sequence and portions of regulatory elements. The effect of some variants on gene expression was evaluated in reporter gene assays...
August 16, 2017: Transfusion
https://www.readbyqxmd.com/read/28815020/advances-on-minimally-invasive-approach-for-benign-total-hysterectomy-a-systematic-review
#10
REVIEW
Marina de Paula Andres, Giuliano Moysés Borrelli, Mauricio Simões Abrão
Hysterectomy is one of the most commonly performed gynecologic surgeries, mainly for uterine myomas, abnormal uterine bleeding, and prolapses. It can be performed through several routes, each of which has its advantages and disadvantages. We conducted this systematic review to evaluate recent advances in surgical outcomes of benign total hysterectomies by any route: vaginal (VH), laparoscopic (LH), laparoscopically assisted vaginal (LAVH), single-port (SP), and robotic-assisted laparoscopy (RH). The search was applied to the PubMed electronic database by using keywords "hysterectomy" and "uterine benign disease", "adenomyosis", and "myoma"...
2017: F1000Research
https://www.readbyqxmd.com/read/28812135/pulmonary-mucormycosis-serial-morphologic-changes-on-computed-tomography-correlate-with-clinical-and-pathologic-findings
#11
Bo Da Nam, Tae Jung Kim, Kyung Soo Lee, Tae Sung Kim, Joungho Han, Myung Jin Chung
PURPOSE: To evaluate serial computed tomography (CT) findings of pulmonary mucormycosis correlated with peripheral blood absolute neutrophil count (ANC). MATERIALS AND METHODS: Between February 1997 and June 2016, 20 immunocompromised patients (10 males, 10 females; mean age, 48.9 years) were histopathologically diagnosed as pulmonary mucormycosis. On initial (n=20) and follow-up (n=15) CT scans, the patterns of lung abnormalities and their changing features on follow-up scans were evaluated, and the pattern changes were correlated with ANC changes...
August 10, 2017: European Radiology
https://www.readbyqxmd.com/read/28809569/rh-catalyzed-conjugate-addition-of-aryl-and-alkenyl-boronic-acids-to-%C3%AE-methylene-%C3%AE-lactones-stereoselective-synthesis-of-trans-3-4-disubstituted-%C3%AE-lactones
#12
Christian A Malapit, Irungu K Luvaga, Donald R Caldwell, Nicholas K Schipper, Amy R Howell
A one-step preparation of 3,4-disubstituted β-lactones through Rh-catalyzed conjugate addition of aryl or alkenyl boronic acids to α-methylene-β-lactones is described. The operationally simple, stereoselective transformation provides a broad range of β-lactones from individual α-methylene-β-lactone templates. This methodology allowed for a direct, final-step C-3 diversification of nocardiolactone, an antimicrobial natural product.
August 15, 2017: Organic Letters
https://www.readbyqxmd.com/read/28808738/formaldehyde-passive-sampler-using-an-optical-chemical-sensor-how-to-limit-the-humidity-interference
#13
Jane Vignau-Laulhere, Pierre Mocho, Hervé Plaisance, Katarzyna Raulin-Woznica, Thu-Hoa Tran-Thi, Valérie Desauziers
The behaviour of a new formaldehyde diffusive sampler using an optical chemical sensor with respect to high humidity conditions is examined in controlled atmospheres. Five prototypes of the radial diffusion sampler having the same chemical sensor and different designs were tested. In addition, a set of experiments were performed on the chemical sensor to characterise its efficiency of trapping water vapour in the absence and in the presence of the reactants, Fluoral-P and formaldehyde. Differences in humidity interference between the five diffusive sampler prototypes were studied and discussed...
August 14, 2017: Analytical and Bioanalytical Chemistry
https://www.readbyqxmd.com/read/28807302/targeted-overexpression-of-cyclic-amp-dependent-protein-kinase-subunit-in-toxoplasma-gondii-promotes-replication-and-virulence-in-host-cells
#14
Hongchao Sun, Suhua Wang, Xianfeng Zhao, Chaoqun Yao, Haohan Zhuang, Yechuan Huang, Xueqiu Chen, Yi Yang, Aifang Du
Toxoplasma gondii (T. gondii) is one of the most common parasite that can infect almost any warm-blooded animals including humans. The cyclic nucleotide-dependent protein kinase (PKA) regulates a spectrum of intracellular signal pathways in many organisms. Protein kinase catalytic subunit (PKAC) is the core of the whole protein, and plays an important role in the life cycle of T.gondii. Here, T.gondii PKAC (TgPKAC) overexpression strain (TgPKAC-OE) was constructed. The growth of the TgPKAC-OE, RH△Ku80, and TgPKAC inhibition strains (TgPKAC-H89) were analysed by SYBR-green real-time PCR, and the ultrastructure was observed by transmission electron microscopy...
August 30, 2017: Veterinary Parasitology
https://www.readbyqxmd.com/read/28807283/neospora-caninum-rop16-play-an-important-role-in-the-pathogenicity-by-phosphorylating-host-cell-stat3
#15
Lei Ma, Gongzhen Liu, Jing Liu, Muzi Li, Heng Zhang, Di Tang, Qun Liu
Neospora caninum is a common cause of abortions in cattle and nervous system dysfunctions in dogs. Our analysis shows that NcROP16 and TgROP16 have similar structures and may have similar functions. To our surprise, we found that similar to the T. gondii RH strain, the N. caninum Nc-1 strain could phosphorylate STAT3(Y705), but in contrast to T. gondii, N. caninum Nc-1 could not phosphorylate STAT6(Y641). We constructed a gene-knockout plasmid and screened ΔNcROP16 strains at the gene, protein and transcription levels...
August 30, 2017: Veterinary Parasitology
https://www.readbyqxmd.com/read/28807043/an-equine-herpesvirus-type-1-ehv-1-vector-expressing-rift-valley-fever-virus-rvfv-gn-and-gc-induces-neutralizing-antibodies-in-sheep
#16
Abdelrahman Said, Mona Elmanzalawy, Guanggang Ma, Armando Mario Damiani, Nikolaus Osterrieder
Rift Valley fever virus (RVFV) is an arthropod-borne bunyavirus that can cause serious and fatal disease in humans and animals. RVFV is a negative-sense RNA virus of the Phlebovirus genus in the Bunyaviridae family. The main envelope RVFV glycoproteins, Gn and Gc, are encoded on the M segment of RVFV and known inducers of protective immunity. In an attempt to develop a safe and efficacious RVF vaccine, we constructed and tested a vectored equine herpesvirus type 1 (EHV-1) vaccine that expresses RVFV Gn and Gc...
August 14, 2017: Virology Journal
https://www.readbyqxmd.com/read/28806706/auditory-cortex-lesions-impair-contralateral-tone-pattern-detection-under-informational-masking
#17
Lisa Prilop, Alexander Gutschalk
Impaired hearing contralateral to unilateral auditory-cortex lesions is typically only observed under conditions of perceptual competition, such as dichotic presentation or speech in noise. It remains unclear, however, if the source of this effect is direct competition in frequency-specific neurons, or if enhanced processing load in more distant frequencies can also impair auditory detection. To evaluate this question, we studied a group of patients with unilateral auditory-cortex lesions (N = 14, six left-hemispheric (LH), eight right-hemispheric (RH); four females; age range 26-72 years) and a control group (N = 25; 15 females; age range 18-76 years) with a target-detection task in presence of a multi-tone masker, which can produce informational masking...
July 19, 2017: Cortex; a Journal Devoted to the Study of the Nervous System and Behavior
https://www.readbyqxmd.com/read/28806620/a-novel-intestinal-rotation-method-for-digestive-reconstruction-after-combined-pancreaticoduodenectomy-and-extended-right-hemicolectomy-a-case-report-and-surgical-technique
#18
Kosei Takagi, Takahito Yagi, Yuzo Umeda, Ryuichi Yoshida, Daisuke Nobuoka, Takashi Kuise, Kenjiro Kumano, Takeshi Kojima, Takuro Fushimi, Toshiyoshi Fujiwara
INTRODUCTION: Pancreaticoduodenectomy (PD) combined with extended right hemicolectomy (RH) is a challenging procedure for locally advanced malignancies. However, information concerning the reconstruction method of the digestive system is limited. Here, we present a case and surgical technique of a novel intestinal rotation method for digestive reconstruction after PD combined with RH. PRESENTATION OF CASE: A 62-year-old man with locally advanced pancreatic cancer received conversion surgery combined with PD and RH after preoperative chemotherapy...
August 8, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28806487/gut-microbiome-response-to-short-term-dietary-interventions-in-reactive-hypoglycemia-subjects
#19
Sara Quercia, Silvia Turroni, Jessica Fiori, Matteo Soverini, Simone Rampelli, Elena Biagi, Andrea Castagnetti, Clarissa Consolandi, Marco Severgnini, Mario Pianesi, Francesco Fallucca, Paolo Pozzilli, Patrizia Brigidi, Marco Candela
BACKGROUND: Reactive hypoglycemia (RH) is a metabolic disorder that provokes severe hypoglycemic episodes after meal. Over recent years, the gut microbiota (GM) has been recognized as potential target for the control of metabolic diseases, and the possibility to correct GM dysbioses through diet, favoring the recovery of metabolic homeostasis, has been considered. METHODS: We investigate the impact of two short-term (3-day) nutritional interventions, based on the macrobiotic Ma-Pi 2 diet and a control Mediterranean diet, on the structure and functionality of the GM in 12 patients affected by RH...
August 14, 2017: Diabetes/metabolism Research and Reviews
https://www.readbyqxmd.com/read/28805855/rhodium-iii-catalyzed-and-meoh-involved-regioselective-mono-alkenylation-of-n-arylureas-with-acrylates
#20
Honggui Lv, Jingjing Shi, Junjun Huang, Chao Zhang, Wei Yi
We herein disclose, for the first time, Rh(iii)-catalyzed and MeOH-involved regioselective mono-alkenylation of arenes with acrylates using NHCONMe2 as the transformable directing group, giving direct access to diverse ortho-acrylated N-phenyl carbamates. The synthetic application of the obtained products to build privileged quinolin-2(1H)-ones and 3-(2-aminophenyl)acrylates has also been demonstrated in subsequent derivatization reactions.
August 14, 2017: Organic & Biomolecular Chemistry
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