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https://www.readbyqxmd.com/read/29782203/extracellular-vesicles-extracted-from-young-donor-serum-attenuate-inflammaging-via-partially-rejuvenating-aged-t-cell-immunotolerance
#1
Weikan Wang, Liefeng Wang, Linhui Ruan, Jiyoung Oh, Xiaowei Dong, Qichuan Zhuge, Dong-Ming Su
Biologic aging results in a chronic inflammatory condition, termed inflammaging, which establishes a risk for such age-related diseases as neurocardiovascular diseases; therefore, it is of great importance to develop rejuvenation strategies that are able to attenuate inflammaging as a means of intervention for age-related diseases. A promising rejuvenation factor that is present in young blood has been found that can make aged neurons younger; however, the component in the young blood and its mechanism of action are poorly elucidated...
May 21, 2018: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/29782155/a-narrow-gap-semiconducting-germanium-allotrope-from-the-oxidation-of-a-layered-zintl-phase-in-ionic-liquids
#2
Zhongjia Tang, Alexander P Litvinchuk, Melissa Gooch, Arnold M Guloy
A metastable germanium allotrope, Ge(oP32), was synthe-sized as polycrystalline powders and single crystals from the mild-oxidation/delithiation of Li7Ge12 in ionic liquids. Its crystal structure, from single crystal X-ray diffraction (P bcm, a = 8.1527(4) Å, b = 11.7572(5) Å, c = 7.7617(4) Å), features a complex covalent network of 4-bonded Ge, resulting from a well-ordered topotactic oxidative condensation of [Ge12 ]7- layers. It is a diamagnetic semiconductor (Eg = 0.33 eV), and transforms exothermically and irreversibly to α-Ge at 363 °C...
May 21, 2018: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/29780925/ocular-involvement-in-neurolymphomatosis
#3
Katy C Liu, Meridith A Hennessey, Chad M McCall, Alan D Proia
Purpose: To describe the ophthalmic symptoms and histopathological findings in a case of primary neurolymphomatosis (NL). Observations: A man in his 60s with a prior diagnosis of chronic inflammatory demyelinating polyneuropathy developed facial numbness, diplopia, drooling, and difficulty swallowing. Over a 3-month period, he developed total ptosis and ophthalmoplegia of the right eye with a dilated, non-reactive pupil considered secondary to cranial nerve III and VI palsies...
June 2018: American Journal of Ophthalmology Case Reports
https://www.readbyqxmd.com/read/29780566/nontrigonal-constraint-enhances-1-2-addition-reactivity-of-phosphazenes
#4
Yi-Chun Lin, James C Gilhula, Alexander T Radosevich
The syntheses and 1,2-addition reactivities of nontrigonal phosphazenes supported by trianionic tricoordinating chelates of the type L3 P 0000000000000000000000000000000000 0000000000000000000000000000000000 0000000000000000000000000000000000 0000000000000000000000000000000000 0000000000000000000000000000000000 0000000000000000000000000000000000 0000000000000000000000000000000000 0000000000000000000000000000000000 0000000000000000000000000000000000 0000000000000000000000000000000000 0000000000000000000000000000000000 0000000000000000000000000000000000 0000000000000000000000000000000000 0000000000000000000000000000000000 0000000000000000000000000000000000 1111111111111111111111111111111111 1111111111111111111111111111111111 0000000000000000000000000000000000 0000000000000000000000000000000000 0000000000000000000000000000000000 0000000000000000000000000000000000 1111111111111111111111111111111111 1111111111111111111111111111111111 0000000000000000000000000000000000 0000000000000000000000000000000000 0000000000000000000000000000000000 0000000000000000000000000000000000 0000000000000000000000000000000000 0000000000000000000000000000000000 0000000000000000000000000000000000 0000000000000000000000000000000000 0000000000000000000000000000000000 0000000000000000000000000000000000 0000000000000000000000000000000000 Ndipp ( 3 : L3 = N[CHC( t Bu)O]2 3- ; 4 : L3 = N( o -NMeC6 H4 )2 3- ; dipp = 2,6-diisopropylphenyl) are reported...
May 14, 2018: Chemical Science
https://www.readbyqxmd.com/read/29780495/examining-the-chemical-and-structural-properties-that-influence-the-sensitivity-of-energetic-nitrate-esters
#5
Virginia W Manner, Marc J Cawkwell, Edward M Kober, Thomas W Myers, Geoff W Brown, Hongzhao Tian, Christopher J Snyder, Romain Perriot, Daniel N Preston
The sensitivity of explosives is controlled by factors that span from intrinsic chemical reactivity and chemical intramolecular effects to mesoscale structure and defects, and has been a topic of extensive study for over 50 years. Due to these complex competing chemical and physical elements, a unifying relationship between molecular framework, crystal structure, and sensitivity has yet to be developed. In order to move towards this goal, ideally experimental studies should be performed on systems with small, systematic structural modifications, with modeling utilized to interpret experimental results...
April 21, 2018: Chemical Science
https://www.readbyqxmd.com/read/29780417/osteoporosis-is-associated-with-deteriorating-clinical-status-in-adults-with-cystic-fibrosis
#6
Inger Hee Mathiesen, Tacjana Pressler, Peter Oturai, Terese Lea Katzenstein, Marianne Skov, Ruth Frikke-Schmidt, Mette Friberg Hitz
Background: Cystic fibrosis (CF) patients are in increased risk of osteoporosis. We aimed to determine the osteoporosis prevalence in an adult CF cohort and investigate calcium metabolic parameters and clinical status' association with bone mineral density evaluated by dual X-ray absorptiometry scan. Methods: We performed a cross section database study of adults at a tertiary CF Center. Z scores were applied for patients < 50 years of age and T scores for patients > 50 years of age...
2018: International Journal of Endocrinology
https://www.readbyqxmd.com/read/29779350/-a-phase-%C3%A2-multi-center-clinical-trial-on-safety-and-efficacy-of-a-domestic-plasma-derived-factor-%C3%A2-for-the-treatment-of-patients-with-hemophilia-b
#7
W Liu, R F Fu, Y W Zhou, Y Chen, J Yin, Z Q Yu, L H Yang, M F Wang, H Bi, Z P Zhou, X S Zhang, J L Xia, R C Yang
Objective: To evaluate the efficacy and safety of a domestic human plasma derived coagulation Factor Ⅸ concentrate (pd-FⅨ) in patients with hemophilia B. Methods: The study was a multicenter, open-label and single-arm study. The efficacy of pd-F Ⅸ was evaluated by objective performance criteria. The doses of pd-FⅨ were calculated according to the bleeding symptom and disease severity. The infusion efficiency of pd-FⅨ and improvement of bleeding symptoms were measured at 30 minutes and (24±4) h after the first infusion, respectively...
May 14, 2018: Zhonghua Xue Ye Xue za Zhi, Zhonghua Xueyexue Zazhi
https://www.readbyqxmd.com/read/29779322/-impact-of-mycophenolate-mofetil-prophylaxis-duration-on-acute-graft-versus-host-disease-after-haploidentical-stem-cell-transplantation
#8
Y Q Sun, X J Huang, L P Xu, X H Zhang, C H Yan, K Y Liu, Y Wang
Objective: To investigate the impact of mycophenolate mofetil (MMF) prophylaxis duration on acute graft-versus-host disease (aGVHD) after haploidentical stem cell transplantation (haplo-HSCT) using 'Beijing Protocol'. Methods: Adult patients (≥14 years) received haplo-HSCT in Peking University Institute of Hematology from Sep, 2016 to Mar, 2017 were retrospectively reviewed if they fulfilled the criterias: ①diagnosed with hematological maligancies; ②standard-risk status at haplo-HSCT. A total of 237 patients [including 102 patients with long MMF duration (defined as started on day -9 with 100 mg/d, adjusted to 500 mg/d from day +30 and discontinued on day +45 to +60 or occurrence of CMV/EBV reactivation or late-onset hemorrhagic cytitis), and 135 patients with short MMF duration (defined as started on day -9 with 500 mg/d and discontinued on the day achieved neutrophil engraftment)] were reviewed...
April 14, 2018: Zhonghua Xue Ye Xue za Zhi, Zhonghua Xueyexue Zazhi
https://www.readbyqxmd.com/read/29778707/synthesis-spectroscopic-single-crystal-diffraction-and-potential-nonlinear-optical-properties-of-novel-pyrazoline-derivatives-interplay-of-experimental-and-computational-analyses
#9
Muhammad Nadeem Arshad, Abdulhadi Salih Birinji, Muhammad Khalid, Abdullah M Asiri, Khalid A Al-Amry, Faisal M S Aqlan, Ataualpa A C Braga
Pyrazoline are widely being studied due to their potential applications in chemical field. Herein, five pyrazolines compounds were synthesized and characterized spectroscopically using nuclear magnetic resonance techniques (1 H NMR &13 C NMR) to determine the structures of molecules along-with UV-Visible and infrared (FT-IR) studies for additional spectroscopic support in characterization of entitle synthesized molecules. Unit cells, specific space groups, bond lengths, bond angles and hydrogen bonding interactions were determined by the x-ray diffraction studies...
May 16, 2018: Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy
https://www.readbyqxmd.com/read/29778664/gestational-diabetes-mellitus-modulates-cholesterol-homeostasis-in-human-fetoplacental-endothelium
#10
Yidan Sun, Susanne Kopp, Jasmin Strutz, Chaitanya Chakravarthi Gali, Martina Zandl-Lang, Elham Fanaee-Danesh, Andrijana Kirsch, Silvija Cvitic, Saša Frank, Richard Saffery, Ingemar Björkhem, Gernot Desoye, Christian Wadsack, Ute Panzenboeck
Gestational diabetes mellitus (GDM) is associated with excessive oxidative stress which may affect placental vascular function. Cholesterol homeostasis is crucial for maintaining fetoplacental endothelial function. We aimed to investigate whether and how GDM affects cholesterol metabolism in human fetoplacental endothelial cells (HPEC). HPEC were isolated from fetal term placental arterial vessels of GDM or control subjects. Cellular reactive oxygen species (ROS) were detected by H2 DCFDA fluorescent dye. Oxysterols were quantified by gas chromatography-mass spectrometry analysis...
May 17, 2018: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/29778057/dynamic-study-of-cr-vi-removal-performance-and-mechanism-from-water-using-multilayer-material-coated-nanoscale-zerovalent-iron
#11
Bin Wu, Dinghua Peng, Siyu Hou, Bicong Tang, Can Wang, Heng Xu
In this study, the dynamic Cr(VI) removal process from water by the synthesized multilayer material coated nanoscale zerovalent iron (SBC-nZVI) was systematically discussed at different treatment conditions. The results showed that initial pH, contact time, Cr(VI) concentration and the dosage of SBC-nZVI were important parameters that influenced the Cr(VI) removal efficiency. The major Cr(VI) removal occurred within 60 min and gradually tend to equilibrium with consistent treatment. The removal efficiency was highly depended on pH values and the adsorption kinetics agreed well with the pseduo-second-order model (PSO)...
May 16, 2018: Environmental Pollution
https://www.readbyqxmd.com/read/29777742/a-functional-glycoproteomics-approach-identifies-cd13-as-a-novel-e-selectin-ligand-in-breast-cancer
#12
M A Carrascal, M Silva, J A Ferreira, R Azevedo, D Ferreira, A M N Silva, D Ligeiro, L L Santos, R Sackstein, P A Videira
BACKGROUND: The glycan moieties sialyl-Lewis-X and/or -A (sLeX/A ) are the primary ligands for E-selectin, regulating subsequent tumor cell extravasation into distant organs. However, the nature of the glycoprotein scaffolds displaying these glycans in breast cancer remains unclear and constitutes the focus of the present investigation. METHODS: We isolated glycoproteins that bind E-selectin from the CF1_T breast cancer cell line, derived from a patient with ductal carcinoma...
May 16, 2018: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/29773953/mir-34a-mediated-regulation-of-xist-in-female-cells-under-inflammation
#13
Botros B Shenoda, Yuzhen Tian, Guillermo M Alexander, Enrique Aradillas-Lopez, Robert J Schwartzman, Seena K Ajit
Background: Evidence is overwhelming for sex differences in pain, with women representing the majority of the chronic pain patient population. There is a need to explore novel avenues to elucidate this sex bias in the development of chronic inflammatory pain conditions. Complex regional pain syndrome (CRPS) is a chronic neuropathic pain disorder, and the incidence of CRPS is greater in women than in men by ~4:1. Since neurogenic inflammation is a key feature of CRPS, dysregulation of inflammatory responses can be a factor in predisposing women to chronic pain...
2018: Journal of Pain Research
https://www.readbyqxmd.com/read/29773450/acromioclavicular-joint-septic-arthritis-in-an-immunocompetent-child-a-case-report
#14
Saurabh Dutt, Jeetendra Lodhi, Vinod Kumar, Abhishek Kashyap
Septic arthritis of acromioclavicular (AC) joint is a rare entity. It is generally seen in patients who are immunocompromised. Only 15 cases have been reported till now, with only one case series of 6 patients. We report a case of septic arthritis of AC joint in an immunocompetent child. A 9 years old girl presented with history of pain in left shoulder for 4 days associated with fever. No history suggestive of any immunocompromised state was complained. On local examination, a swelling of around 3 cm in diameter was found over left AC joint region with raised local temperature, tenderness on palpation and positive response in fluctuation test...
March 23, 2018: Chinese Journal of Traumatology, Zhonghua Chuang Shang za Zhi
https://www.readbyqxmd.com/read/29772805/ethyl-acetate-fraction-from-persimmon-diospyros-kaki-ameliorates-cerebral-neuronal-loss-and-cognitive-deficit-via-the-jnk-akt-pathway-in-tmt-induced-mice
#15
Jong Min Kim, Seon Kyeong Park, Jin Yong Kang, Su Bin Park, Seul Ki Yoo, Hye Ju Han, Chul-Woo Kim, Uk Lee, Sea-Hyun Kim, Ho Jin Heo
This study was conducted to assess the antioxidant capacity and protective effect of the ethyl acetate fraction from persimmon ( Diospyros kaki ) (EFDK) on H₂O₂-induced hippocampal HT22 cells and trimethyltin chloride (TMT)-induced Institute of Cancer Research (ICR) mice. EFDK had high antioxidant activities and neuroprotective effects in HT22 cells. EFDK ameliorated behavioral and memory deficits in Y-maze, passive avoidance and Morris water maze tests. Also, EFDK restored the antioxidant system by regulating malondialdehyde (MDA), superoxide dismutase (SOD) and reduced gluthathione (GSH), and the cholinergic system by controlling the acetylcholine (ACh) level and acetylcholinesterase (AChE) activity and expression...
May 17, 2018: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29771430/senp3-protects-h9c2-cells-from-apoptosis-triggered-by-h-r-via-stat3-pathway
#16
Y Zhang, L-M Zheng, C-X Wang, J-M Gu, S Xue
OBJECTIVE: To investigate whether SENP3 protects H9C2 cells from apoptosis triggered by H/R through the signal transducer and activator of transcription 3 (STAT3) pathway. MATERIALS AND METHODS: Male C57BL mice were cultured and mouse models of myocardial I/RI were established. At the same time, cardiomyoblast H9C2 cell line of rat embryo was cultured. Reactive oxygen species (ROS) level was detected during H/R using 2',7'-dichlorofluorescein diacetate (DCFH) kit...
May 2018: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/29771407/association-of-sox11-gene-expression-withclinical-features-and-prognosis-of-mantle-cell-lymphoma
#17
J-X He, Y-F Xi, L-P Su, N Gao, E-W Xu, L-W Xie, L-Y Wang, Y-P Zheng, W-E Han, J Chang, H-W Wang
OBJECTIVE: To study the expression of SOX11 in the patients with mantle cell lymphoma (MCL) and explore the clinical values of SOX11 in MCL. PATIENTS AND METHODS: In the paraffin-embedded MCL tissues of 75 patients diagnosed in the Department of Hematology, Shanxi Tumor Hospital, were performed the immunohistochemical labeling of Ki67 and SOX11 by the EnVision method. Meanwhile, the expression of SOX11 mRNA was also detected by reverse transcriptase-polymerase chain reaction (RT-PCR), and the association of SOX11 with such prognostic indexes as pathological typing, staging, immunophenotyping, and MIPI was analyzed using the statistical method...
May 2018: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/29770824/visible-light-induced-alkoxyl-radical-generation-for-inert-chemical-bond-cleavage-functionalization
#18
Kunfang Jia, Yiyun Chen
Inert chemical bond cleavage and functionalization reactions provide expedient synthetic routes and are fundamental in organic synthesis. Alkoxyl radicals enable inert chemical bond cleavages by hydrogen atom transfer and β-fragmentation reactivity; however their further synthetic transformations and functional group compatibility are limited by traditional alkoxyl radical generation methods. Recently, visible-light-induced alkoxyl radical generation methods have emerged and led to new advancements in inert chemical bond cleavage reactions and subsequent functionalization, with excellent chemoselectivity and functional group compatibility...
May 17, 2018: Chemical Communications: Chem Comm
https://www.readbyqxmd.com/read/29767309/the-reactivity-of-fe-ni-colloid-stabilized-by-carboxymethylcellulose-cmc-fe-ni-toward-chloroform
#19
Xin Jin, Qun Li, Qi Yang
The use of stabilizers can prevent the reactivity loss of nanoparticles due to aggregation. In this study, carboxymethylcellulose (CMC) was selected as the stabilizer to synthesize a highly stable CMC-stabilized Fe/Ni colloid (CMC-Fe/Ni) via pre-aggregation stabilization. The reactivity of CMC-Fe/Ni was evaluated via the reaction of chloroform (CF) degradation. The effect of background solution which composition was affected by the preparation of Fe/Ni (Fe/Ni precursors, NaBH4 dosage) and the addition of solute (common ions, sulfur compounds) on the reactivity of CMC-Fe/Ni was also investigated...
May 16, 2018: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/29765604/deciphering-mineralogical-changes-and-carbonation-development-during-hydration-and-ageing-of-a-consolidated-ternary-blended-cement-paste
#20
Francis Claret, Sylvain Grangeon, Annick Loschetter, Christophe Tournassat, Wout De Nolf, Nicholas Harker, Faiza Boulahya, Stéphane Gaboreau, Yannick Linard, Xavier Bourbon, Alejandro Fernandez-Martinez, Jonathan Wright
To understand the main properties of cement, a ubiquitous material, a sound description of its chemistry and mineralogy, including its reactivity in aggressive environments and its mechanical properties, is vital. In particular, the porosity distribution and associated sample carbonation, both of which affect cement's properties and durability, should be quantified accurately, and their kinetics and mechanisms of formation known both in detail and in situ . However, traditional methods of cement mineralogy analysis ( e...
March 1, 2018: IUCrJ
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