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https://www.readbyqxmd.com/read/28748020/an-unanticipated-diagnosis-with-bedside-ultrasonography-in-patients-with-acute-abdominal-pain-rectus-hematoma
#1
Erden Erol Ünlüer, Eylem Kuday Kaykısız
Although abdominal pain is a common presentation in emergency departments, rectus sheath hematoma (RSH) is among the rarest diagnosis. Here we present 2 cases of RSH likely caused by coughing due to upper respiratory tract infection. The two described cases were diagnosed by bedside ultrasonography and confirmed as RSH by computed tomography. Review of patient history and use of ultrasonography are important to avoid misdiagnosisof RSH.
2017: Pan African Medical Journal
https://www.readbyqxmd.com/read/28738583/application-of-headspace-and-direct-immersion-solid-phase-microextraction-in-the-analysis-of-organothiophosphates-related-to-the-chemical-weapons-convention-from-water-and-complex-matrices
#2
Marc André Althoff, Andreas Bertsch, Manfred Metzulat, Thomas M Klapötke, Konstantin L Karaghiosoff
The successful application of headspace (HS) and direct immersion (DI) solid phase microextraction (SPME) for the unambiguous identification and characterization of a series of toxic thiophosphate esters, such as Amiton (I), from aqueous phases and complex matrices (e.g. grass and foliage) has been demonstrated. A Thermo Scientific gas chromatograph (GC) - tandem mass spectrometer (MS/MS) system with a TriPlus RSH® autosampler and a SPME tool was used to investigate the effect of different parameters that influence the extraction efficiency: e...
November 1, 2017: Talanta
https://www.readbyqxmd.com/read/28696855/don-t-forget-the-abdominal-wall-imaging-spectrum-of-abdominal-wall-injuries-after-nonpenetrating-trauma
#3
Shanna A Matalon, Reza Askari, Jonathan D Gates, Ketan Patel, Aaron D Sodickson, Bharti Khurana
Abdominal wall injuries occur in nearly one of 10 patients coming to the emergency department after nonpenetrating trauma. Injuries range from minor, such as abdominal wall contusion, to severe, such as abdominal wall rupture with evisceration of abdominal contents. Examples of specific injuries that can be detected at cross-sectional imaging include abdominal muscle strain, tear, or hematoma, including rectus sheath hematoma (RSH); traumatic abdominal wall hernia (TAWH); and Morel-Lavallée lesion (MLL) (closed degloving injury)...
July 2017: Radiographics: a Review Publication of the Radiological Society of North America, Inc
https://www.readbyqxmd.com/read/28666085/effect-of-solid-state-polarization-on-charge-transfer-excitations-and-transport-levels-at-organic-interfaces-from-a-screened-range-separated-hybrid-functional
#4
Zilong Zheng, David A Egger, Jean-Luc Brédas, Leeor Kronik, Veaceslav Coropceanu
We develop a robust approach for the description of the energetics of charge-transfer (CT) excitations and transport levels at organic interfaces based on a screened range-separated hybrid (SRSH) functional. We find that SRSH functionals correctly capture the effect of solid-state electronic polarization on transport gap renormalization and on screening of the electrostatic electron-hole interaction. With respect to calculations based on nonscreened optimally tuned RSH (long-range corrected) functionals, the SRSH-based calculations can be performed for both isolated molecular complexes and systems embedded in a dielectric medium with the same range-separation parameter, which allows a clear physical interpretation of the results in terms of solid-state polarization without any perturbation of the molecular electronic structure...
July 6, 2017: Journal of Physical Chemistry Letters
https://www.readbyqxmd.com/read/28601991/the-mechanisms-underlying-the-variety-of-preoperative-directionalities-of-shoulder-tilting-in-adolescent-idiopathic-scoliosis-patients-with-double-thoracic-curve
#5
Jun Jiang, Bang-Ping Qian, Yong Qiu, Bin Wang, Yang Yu, Ze-Zhang Zhu
PURPOSE: Preoperative directionality of shoulder tilting seems to be independent of the radiographic features of proximal thoracic (PT) curve in adolescent idiopathic scoliosis (AIS) patients. To date, no study had investigated the mechanisms underlying the variety of preoperative directionalities of shoulder tilting in AIS patients. The purpose of this study was to evaluate the differences of radiographic features between Lenke type 2 (double thoracic curve) AIS patients with different preoperative directionalities of shoulder tilting...
June 10, 2017: European Spine Journal
https://www.readbyqxmd.com/read/28513157/shedding-light-on-the-accuracy-of-optimally-tuned-range-separated-approximations-for-evaluating-oxidation-potentials
#6
Mojtaba Alipour, Soheila Mohseni
There is a surge in the literature on the development of exchange-correlation density functionals for a wide variety of physical and chemical properties. As a recent endeavor toward the systematic and nonempirical design of density functional approximations, optimally tuned range-separated hybrid (OT-RSH) models have been introduced. In this work, we propose novel OT-RSH density functionals for predicting the oxidation potentials of organic compounds from different categories. In this regard, detailed analysis of the role of nonempirical optimization of the range separation parameter and importance of short- and long-range exact-like exchange in OT-RSH calculations of the oxidation potential has also been done...
May 17, 2017: Journal of Physical Chemistry. A
https://www.readbyqxmd.com/read/28382685/dimethyl-fumarate-ameliorates-myoclonus-stemming-from-protein-misfolding-in-oligodendrocytes
#7
Cherie M Southwood, Danielle M Garshott, Chelsea R Richardson, Navid Seraji-Bozorgzad, Andrew M Fribley, Alexander Gow
Multiple sclerosis (MS) is considered a primary autoimmune disease; however, this view is increasingly being challenged in basic and clinical science arenas because of the growing body of clinical trials' data showing that exclusion of immune cells from the CNS only modestly slows disease progression to disability. Accordingly, there is significant need for expanding the scope of potential disease mechanisms to understand the etiology of MS. Concomitantly, the use of a broader range of pre-clinical animal models for characterizing existing efficacious clinical treatments may elucidate additional or unexpected mechanisms of action for these drugs that augment insight into MS etiology...
July 2017: Journal of Neurochemistry
https://www.readbyqxmd.com/read/28345897/a-smart-molecule-for-selective-sensing-of-nitric-oxide-conversion-of-no-to-hsno-relevance-of-biological-hsno-formation
#8
Abu Saleh Musha Islam, Rahul Bhowmick, Kaberi Pal, Atul Katarkar, Keya Chaudhuri, Mahammad Ali
A smart molecule, QT490, containing thiosemicarbazide moiety acts as a highly selective turn-on in vitro NO sensor through the unprecedented NO-induced transformation of thiosemicarbazide moiety to 1,3,4-oxadiazole heterocycle with the concomitant release of HSNO, thereby eliminating any interference from various endogenous biomolecules including dehydroascorbic acid, ascorbic acid, etc. The kinetic studies of the reactions between QT490 and NO provide a mechanistic insight into formation of HSNO/RSNO from the reaction between H2S/RSH and NO in the biological system...
March 27, 2017: Inorganic Chemistry
https://www.readbyqxmd.com/read/28335311/a-study-of-inverted-type-perovskite-solar-cells-with-various-composition-ratios-of-fapbi%C3%A2-1-x-mapbbr%C3%A2-x
#9
Lung-Chien Chen, Zong-Liang Tseng, Jun-Kai Huang
This work presents mixed (FAPbI₃)1-x(MAPbBr₃)x perovskite films with various composition ratios, x (x = 0-1), which are formed using the spin coating method. The structural, optical, and electronic behaviors of the mixed (FAPbI₃)1-x(MAPbBr₃)x perovskite films are discussed. A device with structure glass/indium tin oxide (ITO)/poly(3,4-ethylenedioxythiophene) polystyrene sulfonate (PEDOT:PSS)/mixed perovskite/C60/BCP/Ag was fabricated. The mixed perovskite film was an active light-harvesting layer. PEDOT: PSS was a hole transporting layer between the ITO and perovskite...
October 13, 2016: Nanomaterials
https://www.readbyqxmd.com/read/28330422/bilateral-rectal-sheath-hematomas-after-low-molecular-weight-heparin-treatment-in-uremia
#10
Lu Xu, Lei Liu, Xinjian Li
Rectus sheath hematomas (RSHs) are uncommon. They are usually unilateral and rarely bilateral. In this paper, we report the first case of spontaneous bilateral RSHs in a uremic patient after the administration of the first dose of low-molecular weight heparin during hemodialysis. The most interesting aspect of this case is that the main symptom of RSH in our patient was urinary bladder irritation. We highlight the importance of the prompt diagnosis and management of this medical emergency.
November 2017: Renal Failure
https://www.readbyqxmd.com/read/28303404/phylogenetic-analysis-of-proteins-involved-in-the-stringent-response-in-plant-cells
#11
Doshun Ito, Yuta Ihara, Hidenori Nishihara, Shinji Masuda
The nucleotide (p)ppGpp is a second messenger that controls the stringent response in bacteria. The stringent response modifies expression of a large number of genes and metabolic processes and allows bacteria to survive under fluctuating environmental conditions. Recent genome sequencing analyses have revealed that genes responsible for the stringent response are also found in plants. These include (p)ppGpp synthases and hydrolases, RelA/SpoT homologs (RSHs), and the pppGpp-specific phosphatase GppA/Ppx. However, phylogenetic relationship between enzymes involved in bacterial and plant stringent responses is as yet generally unclear...
July 2017: Journal of Plant Research
https://www.readbyqxmd.com/read/28295724/improved-infrared-spectra-prediction-by-dft-from-a-new-experimental-database
#12
Madanakrishna Katari, Edith Nicol, Vincent Steinmetz, Guillaume van der Rest, Duncan Carmichael, Gilles Frison
This work aims to improve the computation of infrared spectra of gas-phase cations using DFT methods. Experimental infrared multiple photon dissociation (IRMPD) spectra for ten Zn and Ru organometallic complexes have been used to provide reference data for 64 vibrational modes in the 900-2000 cm(-1) range. The accuracy of the IR vibrational frequencies predicted for these bands has been assessed over five DFT functionals and three basis sets. The functionals include the popular B3LYP and M06-2X hybrids and the range-separated hybrids (RSH) CAM-B3LYP, LC-BLYP, and ωB97X-D...
March 13, 2017: Chemistry: a European Journal
https://www.readbyqxmd.com/read/28240508/it-s-not-inside-it-s-on-top-an-unusual-cause-of-right-iliac-fossa-pain
#13
N Singh, M Govender
Rectus sheath haematoma (RSH) is an uncommon cause of acute abdominal pain, but can mimic a variety of acute surgical conditions. Computed tomography (CT) provides the diagnosis and avoids unnecessary procedures.
June 2016: South African Journal of Surgery. Suid-Afrikaanse Tydskrif Vir Chirurgie
https://www.readbyqxmd.com/read/28199921/pilot-scale-bioconversion-of-rice-and-sunflower-agro-residues-into-medicinal-mushrooms-and-laccase-enzymes-through-solid-state-fermentation-with-ganoderma-lucidum
#14
P D Postemsky, M A Bidegain, R González-Matute, N D Figlas, M A Cubitto
Solid-state fermentation was evaluated at the pilot-scale for the bioconversion and valorization of rice husks and straw (RSH), or sunflower seed hulls (SSH), into medicinal mushrooms and crude extracts, with laccase activity. The average mushroom yield was 56kg dry weight per ton of agro-residues. Laccase activity in crude aqueous extracts showed its maximum value of 10,927Ukg(-1) in RSH (day 10, Exudate phase) and 16,442Ukg(-1) in SSH (day 5, Full colonization phase), the activity at the Residual substrate phase being 511Ukg(-1) in RSH and 803Ukg(-1) in SSH, respectively...
May 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28194720/effects-of-repeated-sprint-training-in-hypoxia-on-sea-level-performance-a-meta-analysis
#15
REVIEW
Franck Brocherie, Olivier Girard, Raphaël Faiss, Grégoire P Millet
BACKGROUND: Repeated-sprint training in hypoxia (RSH) is a recent intervention regarding which numerous studies have reported effects on sea-level physical performance outcomes that are debated. No previous study has performed a meta-analysis of the effects of RSH. OBJECTIVE: We systematically reviewed the literature and meta-analyzed the effects of RSH versus repeated-sprint training in normoxia (RSN) on key components of sea-level physical performance, i.e., best and mean (all sprint) performance during repeated-sprint exercise and aerobic capacity (i...
August 2017: Sports Medicine
https://www.readbyqxmd.com/read/28044933/should-arterial-embolization-in-recurrent-spontaneous-hemophilic-hemarthroses-refractory-to-intensive-prophylaxis-be-the-first-invasive-resort
#16
E Carlos Rodriguez-Merchan
This paper reviews the role of arterial embolization (AE) in recurrent spontaneous hemarthroses (RSH) that are refractory to intensive prophylaxis (RIP) in people with hemophilia (PWH). There are six articles in the literature on the topic. The total number of AEs performed so far is 78 in 69 patients. Four second AEs were required (4/78), and a third AE in one (1/78). No serious adverse effects have been reported except for a pseudoaneurym (1/78) of the femoral artery at the puncture site (that eventually required surgical repair) and for one patient (1/78) that had recurrence of bleeding for whom surgical exploration was required...
December 16, 2016: Cardiovascular & Hematological Disorders Drug Targets
https://www.readbyqxmd.com/read/28040482/schistosoma-antigens-downregulate-cxcl9-production-by-pbmc-of-htlv-1-infected-individuals
#17
Luciane Mota Lima, Luciana Santos Cardoso, Silvane Braga Santos, Ricardo Riccio Oliveira, Sérgio Costa Oliveira, Alfredo Miranda Góes, Alex Loukas, Maria Ilma Araujo
HTLV-1 is the causal agent of Adult T cell Leukemia/lymphoma (ATLL) and HTLV-1-associated Myelopathy/Tropical Spastic Paraparesis (HAM/TSP). The immune response to HTLV-1-infection is polarized to the Th1-type, and the presence of CXCL9/CXCL10 chemokines may lead to an increase in the recruitment of pro-inflammatory molecules in spinal cord tissue, contributing to the damage observed in the development of HAM/TSP. It has been observed that in chronic helminth-infections, such as schistosomiasis, there is a deviation toward the Th2/regulatory immune response...
March 2017: Acta Tropica
https://www.readbyqxmd.com/read/27976866/highly-selective-fluorescent-probe-for-imaging-h2se-in-living-cells-and-in-vivo-based-on-the-disulfide-bond
#18
Fanpeng Kong, Yuehui Zhao, Ziye Liang, Xiaojun Liu, Xiaohong Pan, Dongrui Luan, Kehua Xu, Bo Tang
Hydrogen selenide (H2Se) is an important metabolite of dietary Se compounds and has been implicated in various pathological and physiological processes. The development of highly sensitive and selective methods for the sensing of H2Se is therefore very important. Herein, we developed a fluorescent probe (hemicyanine (Hcy)-H2Se) for detecting H2Se based on a new H2Se-specific receptor unit, 1,2-dithiane-4,5-diol. Hcy-H2Se showed high selectivity toward H2Se over thiols (RSH), hydrogen sulfide (H2S), and selenocysteine (Sec) and was further exploited for the fluorescence imaging of H2Se both in living cells and in vivo...
January 3, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/27936678/copper-ii-activation-of-nitrite-nitrosation-of-nucleophiles-and-generation-of-no-by-thiols
#19
Subrata Kundu, William Y Kim, Jeffery A Bertke, Timothy H Warren
Nitrite (NO2(-)) and nitroso compounds (E-NO, E = RS, RO, and R2N) in mammalian plasma and cells serve important roles in nitric oxide (NO) dependent as well as NO independent signaling. Employing an electron deficient β-diketiminato copper(II) nitrito complex [Cl2NNF6]Cu(κ(2)-O2N)·THF, thiols mediate reduction of nitrite to NO. In contrast to NO generation upon reaction of thiols at iron nitrite species, at copper this conversion proceeds through nucleophilic attack of thiol RSH on the bound nitrite in [Cu(II)](κ(2)-O2N) that leads to S-nitrosation to give the S-nitrosothiol RSNO and copper(II) hydroxide [Cu(II)]-OH...
December 22, 2016: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/27867458/renal-subcapsular-hematoma-caused-by-hydrophilic-guide-wire-during-patent-ductus-arteriosus-closure
#20
Efe Edem, Harun Kilic, Alper Karacan, Ramazan Akdemir
Hydrophilic guide wire-associated renal subcapsular hematoma (RSH) during patent ductus arteriosus (PDA) closure is an extremely rare clinical condition. Herein, we present the case of a 16-year-old adolescent who suffered accidental hydrophilic 0.035-inch guide wire-related RSH during PDA closure. This RSH was diagnosed by computerized tomography and selective renal angiography. It was successfully treated by conservative treatment.
July 2016: Heart Views: the Official Journal of the Gulf Heart Association
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