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https://www.readbyqxmd.com/read/28820363/incidence-of-perioperative-medical-complications-and-mortality-among-elderly-patients-undergoing-surgery-for-spinal-deformity-analysis-of-3519-patients
#1
Amit Jain, Hamid Hassanzadeh, Varun Puvanesarajah, Eric O Klineberg, Daniel M Sciubba, Michael P Kelly, D Kojo Hamilton, Virginie Lafage, Aaron J Buckland, Peter G Passias, Themistocles S Protopsaltis, Renaud Lafage, Justin S Smith, Christopher I Shaffrey, Khaled M Kebaish
OBJECTIVE Using 2 complication-reporting methods, the authors investigated the incidence of major medical complications and mortality in elderly patients after surgery for adult spinal deformity (ASD) during a 2-year follow-up period. METHODS The authors queried a multicenter, prospective, surgeon-maintained database (SMD) to identify patients 65 years or older who underwent surgical correction of ASD from 2008 through 2014 and had a minimum 2 years of follow-up (n = 153). They also queried a Centers for Medicare & Medicaid Services claims database (MCD) for patients 65 years or older who underwent fusion of 8 or more vertebral levels from 2005 through 2012 (n = 3366)...
August 18, 2017: Journal of Neurosurgery. Spine
https://www.readbyqxmd.com/read/28816082/zeaxanthin-dipalmitate-alleviates-hepatic-injury-induced-by-superimposed-chronic-hepatitis-b-and-non-alcoholic-steatohepatitis-in-non-obese-mice
#2
Jing-Jing Li, Hao Gao, Yi Lv, Mian-Huan Li, Chao-Ran Ren, Kwok-Fai So, Jia Xiao
A hepatitis B virus (HBV) transgenic mice model was used to establish the fatty liver superimposed model by feeding the methionine choline-deficient (MCD) diet for 8 weeks, with or without the gavage of 2 mg/kg zeaxanthin dipalmitate (ZD) three times per week. Both wild-type and HBV transgenic mice, with MCD diet, gained typical non-obese non-alcoholic steatohepatitis (NASH) and HBV symptoms. Coadministration with ZD exhibited evident therapeutic effects through alleviating those pathological events. Moreover, long-term vehicle-ZD treatment was found to be safe...
September 2017: Journal of Asian Natural Products Research
https://www.readbyqxmd.com/read/28808385/anti-inflammatory-effect-of-etlingera-pavieana-pierre-ex-gagnep-r-m-sm-rhizomal-extract-and-its-phenolic-compounds-in-lipopolysaccharide-stimulated-macrophages
#3
Ekaruth Srisook, Mullika Palachot, Sakulrat Mankhong, Klaokwan Srisook
BACKGROUND: In our continuing search for anti-inflammatory agents from Thai herbs, Etlingera pavieana (Pierre ex Gagnep.) R.M.Sm. showed potent inhibition on nitric oxide (NO) production in lipopolysaccharide (LPS)-induced macrophages. However, the mechanism behind its inhibitory effect has not been yet explored, and little is known regarding its bioactive compounds responsible for the anti-inflammatory effect. OBJECTIVE: In the present study, anti-inflammatory effect of hexane, ethyl acetate, and water fractions of rhizomal ethanol extracts of E...
July 2017: Pharmacognosy Magazine
https://www.readbyqxmd.com/read/28808187/g-aminobutyric-acid-promotes-methionine-choline-deficient-diet-induced-nonalcoholic-steatohepatitis
#4
Yoon Seok Roh, Ara Cho, Zixiong Zhou, Hyuneui Jeong, Jeong-Eun Park, Youn-Soo Cha, Suk-Heung Oh, Chae-Woong Lim, Bumseok Kim
Nonalcoholic steatohepatitis (NASH) is one of the most common liver diseases and a major cause of liver fibrosis worldwide. G-Aminobutyric acid (GABA) is one of the most abundant inhibitory neurotransmitters in the central nervous system. Recently, it has been reported that GABAergic signaling pathways are found in various non-neuronal tissues including the immune system and play a functional role. In the present study, we investigated whether administration of GABA has effects on NASH through its immunomodulatory effects...
October 17, 2016: Journal of Biomedical Research
https://www.readbyqxmd.com/read/28795405/genomewide-dna-methylation-analysis-in-combat-veterans-reveals-a-novel-locus-for-ptsd
#5
D Mehta, D Bruenig, T Carrillo-Roa, B Lawford, W Harvey, C P Morris, A K Smith, E B Binder, R McD Young, J Voisey
OBJECTIVE: Epigenetic modifications such as DNA methylation may play a key role in the aetiology and serve as biomarkers for post-traumatic stress disorder (PTSD). We performed a genomewide analysis to identify genes whose DNA methylation levels are associated with PTSD. METHOD: A total of 211 individuals comprising Australian male Vietnam War veterans (n = 96) and males from a general population belonging to the Grady Trauma Project (n = 115) were included. Genomewide DNA methylation was performed from peripheral blood using the Illumina arrays...
August 9, 2017: Acta Psychiatrica Scandinavica
https://www.readbyqxmd.com/read/28792788/age-related-decline-in-amh-is-assay-dependent-limiting-clinical-interpretation-of-repeat-amh-measures-across-the-reproductive-lifespan
#6
Lukasz Plociennik, Scott M Nelson, Aron Lukaszuk, Michal Kunicki, Agnieszka Podfigurna, Blazej Meczekalski, Krzysztof Lukaszuk
PURPOSE: The aim of the study was to determine whether the assays exhibit an interaction with age and exhibit heterogeneous age related declines in AMH. Apart of chronological age, AMH variation was investigated with relation to menstrual cycle day (MCD). The goal implicates two questions: Are distributions of AMH concentrations homogenous after adjustment for the specific AMH assay? Does age-assay product has an effect on AMH depletion? METHODS: The study was conducted by examining results of AMH tests performed for 12,917 women with four types of AMH assays: Immunotech I generation kit (IMI, 4016 samples), Beckman Coulter II generation kit RUO (BCII RUO, 3430 samples), Beckman Coulter II generation kit with IVD certificate (BCII IVD, 830 samples), and Ansh Labs I generation kit (AnshLabs, 4641 samples)...
August 9, 2017: Gynecological Endocrinology
https://www.readbyqxmd.com/read/28777778/kshv-and-the-role-of-notch-receptor-dysregulation-in-disease-progression
#7
REVIEW
Jennifer L DeCotiis, David M Lukac
Kaposi's sarcoma-associated herpesvirus (KSHV) is the causative agent of two human cancers, Kaposi's Sarcoma (KS) and primary effusion lymphoma (PEL), and a lymphoproliferation, Multicentric Castleman's Disease (MCD). Progression to tumor development in KS is dependent upon the reactivation of the virus from its latent state. We, and others, have shown that the Replication and transcriptional activator (Rta) protein is the only viral gene product that is necessary and sufficient for viral reactivation. To induce the reactivation and transcription of viral genes, Rta forms a complex with the cellular DNA binding component of the canonical Notch signaling pathway, recombination signal binding protein for Jk (RBP-Jk)...
August 4, 2017: Pathogens
https://www.readbyqxmd.com/read/28777276/redefining-optimal-nail-to-medullary-canal-diameter-ratio-in-stainless-steel-flexible-intramedullary-nailing-of-pediatric-femur-fractures
#8
James S Shaha, Jason M Cage, Sheena R Black, Robert L Wimberly, Steven H Shaha, Anthony I Riccio
PURPOSE: The ideal canal fill for flexible intramedullary fixation of pediatric femoral shaft fractures is considered to be 80% based upon relatively few clinical studies. The purpose of this study is to assess the relationship between the summed nail to intramedullary canal diameter (ND/MCD) ratio and alignment at radiographic union following flexible intramedullary nailing (FIMN) of pediatric femoral shaft fractures. METHODS: An Internal Review Board approved, retrospective review of a consecutive series of patients who sustained a femoral shaft fracture treated by retrograde, stainless steel FIMN was performed at a single level 1 pediatric trauma center from 2005 to 2012...
August 2, 2017: Journal of Pediatric Orthopedics
https://www.readbyqxmd.com/read/28766619/magnetic-circular-dichroism-and-density-functional-theory-studies-of-electronic-structure-and-bonding-in-cobalt-ii-n-heterocyclic-carbene-complexes
#9
Theresa E Iannuzzi, Yafei Gao, Tessa M Baker, Liang Deng, Michael L Neidig
The combination of simple cobalt salts and N-heterocyclic carbene (NHC) ligands has been highly effective in C-H functionalization, hydroarylation and cross-coupling catalysis, though displaying a strong dependence on the identity of the NHC ligand. In addition, reactions effective with NHC ligands are often ineffective with phosphine ligands, further motivating the evaluation of the fundamental electronic structure and bonding differences in well-defined distorted tetrahedral Co(ii) complexes. Magnetic circular dichroism (MCD) studies indicate that Co(ii)-bisphosphines have larger ligand fields than Co(ii)-NHC complexes...
August 2, 2017: Dalton Transactions: An International Journal of Inorganic Chemistry
https://www.readbyqxmd.com/read/28749492/a-cobalt-nitrosyl-complex-with-a-hindered-hydrotris-pyrazolyl-borate-coligand-detailed-electronic-structure-and-reactivity-towards-dioxygen
#10
Kiyoshi Fujisawa, Shoko Soma, Haruka Kurihara, Hai T Dong, Max Bilodeau, Nicolai Lehnert
The cobalt-nitrosyl complex [Co(NO)(L3)] is supported by a highly hindered tridentate nitrogen ligand, hydrotris(3-tertiary butyl-5-isopropyl-1-pyrazolyl)borate (denoted as L3(-)), and shows a linear Co-N-O unit. This complex was prepared by the reaction of the potassium salt of L3(-) with the cobalt-nitrosyl precursor [Co(NO)2(tmeda)](BPh4) (tmeda = N,N,N,'N'-tetramethylethylenediamine). The obtained cobalt-nitrosyl complex as well as the corresponding products from the reaction with dioxygen, [Co(η(2)-O2N)(L3)] and [Co(η(2)-O2NO)(L3)], were characterised by X-ray crystallography and a number of spectroscopic methods including IR/far-IR, UV-Vis, and NMR spectroscopy...
July 27, 2017: Dalton Transactions: An International Journal of Inorganic Chemistry
https://www.readbyqxmd.com/read/28748888/childhood-idiopathic-steroid-resistant-nephrotic-syndrome-at-a-single-center-in-khartoum
#11
El-Tigani M A Ali, Hanna F K Makki, Mohamed B Abdelraheem, Salwa O Makke, Rashid A Allidir
Prevalence, clinicopathological features, and outcome of childhood idiopathic steroid-resistant nephrotic syndrome (ISRNS) vary in different countries. We report on these parameters in a single center in Khartoum. We retrospectively reviewed all the records of children with idiopathic nephrotic syndrome (INS) followed up in the pediatric renal unit, Soba Hospital, Khartoum between 2001 and 2012. ISRNS was defined as no remission within four weeks of daily prednisolone at a dose of 60 mg/m2. In 430 children with INS 130 (28%) had SRNS with a mean age of 7...
July 2017: Saudi Journal of Kidney Diseases and Transplantation
https://www.readbyqxmd.com/read/28747982/comparative-study-of-fatty-liver-induced-by-methionine-and-choline-deficiency-in-c57bl-6n-mice-originating-from-three-different-sources
#12
Sou Hyun Kim, Yong Lim, Ju Bin Park, Jae-Hwan Kwak, Keuk-Jun Kim, Joung-Hee Kim, HyunKeun Song, Joon Young Cho, Dae Youn Hwang, Kil Soo Kim, Young-Suk Jung
Non-alcoholic fatty liver disease (NAFLD) is believed to be the most prevalent liver disease worldwide and a major cause of chronic liver injury. It is characterized by lipid accumulation in the absence of significant alcohol consumption and frequently progresses to steatohepatitis, liver fibrosis, and hepatocellular carcinoma. Although many studies have been conducted to better understand NAFLD since it was first recognized, there are still many gaps in knowledge of etiology, prognosis, prevention and treatment...
June 2017: Laboratory Animal Research
https://www.readbyqxmd.com/read/28747438/palmitoylation-is-a-prerequisite-for-dimerization-dependent-raftophilicity-of-rhodopsin
#13
Keiji Seno, Fumio Hayashi
The visual photopigment rhodopsin (Rh) is a prototypical G protein-coupled receptor (GPCR) responsible for initiation of the phototransduction cascade in rod photoreceptors. Similar to other GPCRs, Rh can form dimers or even higher oligomers, and tends to have a supramolecular organization that is likely important in the dim light response. Rh also exhibits high affinity for lipid rafts (raftophilicity) upon light-dependent binding with cognate G protein transducin (Gt), suggesting the presence of lipid raft-like domains in the retinal disk membrane and their importance in phototransduction...
July 26, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28745752/optical-absorption-and-magnetic-circular-dichroism-spectra-of-thiouracils-a-quantum-mechanical-study-in-solution
#14
L Martinez-Fernandez, T Fahleson, P Norman, F Santoro, S Coriani, R Improta
The excited electronic states of 2-thiouracil, 4-thiouracil and 2,4-dithiouracil, the analogues of uracil where the carbonyl oxygens are substituted by sulphur atoms, have been investigated by computing the magnetic circular dichroism (MCD) and one-photon absorption (OPA) spectra at the time-dependent density functional theory level. Special attention has been paid to solvent effects, included by a mixed discrete/continuum model, and to determining how our results depend on the adopted DFT functional (CAM-B3LYP and B3LYP)...
July 26, 2017: Photochemical & Photobiological Sciences
https://www.readbyqxmd.com/read/28744904/do-mandibular-complete-dentures-made-using-a-neutral-zone-technique-improve-speech-a-pilot-study
#15
Peter Rehmann, Anna Katharina Künkel, Daniel Weber, Ulrich Lotzmann, Bernd Wöstmann
OBJECTIVE: The aim of this study was to evaluate speech sound production (SSP) in older edentulous patients provided with two different types of mandibular complete dentures (MCDs; conventional vs neutral zone). BACKGROUND: Regarding the fact that complete dentures (CDs) affect SSP, it is unknown whether the set-up of the artificial teeth resulting from the neutral zone technique leads to a negative impact on SSP. MATERIALS AND METHODS: For 21 participants, a conventional MCD and a MCD using a modified neutral zone technique (neutral zone dentures) were fabricated...
July 26, 2017: Gerodontology
https://www.readbyqxmd.com/read/28740494/insights-in-anaphylaxis-and-clonal-mast-cell-disorders
#16
REVIEW
David González-de-Olano, Iván Álvarez-Twose
The prevalence of anaphylaxis among patients with clonal mast cell disorders (MCD) is clearly higher comparing to the general population. Due to a lower frequency of symptoms outside of acute episodes, clonal MCD in the absence of skin lesions might sometimes be difficult to identify which may lead to underdiagnosis, and anaphylaxis is commonly the presenting symptom in these patients. Although the release of mast cell (MC) mediators upon MC activation might present with a wide variety of symptoms, particular clinical features typically characterize MC mediator release episodes in patients with clonal MCD without skin involvement...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28730512/nlrp3-deletion-inhibits-the-non-alcoholic-steatohepatitis-development-and-inflammation-in-kupffer-cells-induced-by-palmitic-acid
#17
Can Cai, Xiwen Zhu, Peizhi Li, Jinzheng Li, Jianping Gong, Wei Shen, Kun He
The cleavage and secretion of pro-inflammatory cytokines IL-1β and IL-18 is regulated by NLRP3 (NACHT, LRR, and PYD domain-containing protein 3) inflammasome activation. Kupffer cells (KCs) are implicated in the pathogenesis of various liver diseases, such as non-alcoholic fatty liver disease (NAFLD), alcoholic liver disease, and liver fibrosis. However, the role of NLRP3 played in the non-alcoholic steatohepatitis (NASH) has yet to be evaluated. In the present study, methionine-choline-deficient (MCD) diet was used to establish the mice NASH model...
July 20, 2017: Inflammation
https://www.readbyqxmd.com/read/28719723/de-novo-hhv-8-tumors-induced-by-rituximab-in-autoimmune-or-inflammatory-systemic-diseases
#18
Amandine Perier, Léa Savey, Anne-Geneviève Marcelin, Philippe Serve, David Saadoun, Stéphane Barete
OBJECTIVES: HHV-8, also known as Kaposi's sarcoma (KS) associated herpesvirus is involved in KS and other tumors comprising multicentric Castleman disease (MCD) and primary effusion lymphoma (PEL). Rituximab is currently used for treatment of several autoimmune or inflammatory diseases and humoral organ rejection. De novo HHV-8 induced tumors by rituximab used for autoimmune or inflammatory diseases or humoral organ rejection have not been reported. METHODS: In this retrospective study, we report clinical, virological and pathology of five HIV-negative male patients with HHV-8-induced tumors following rituximab therapy...
July 18, 2017: Arthritis & Rheumatology
https://www.readbyqxmd.com/read/28715663/a-laboratory-model-of-impulsivity-and-alcohol-use-in-late-adolescence
#19
Matthew J Gullo, Natalie J Loxton, Therese Price, Joanne Voisey, Ross McD Young, Jason P Connor
Impulsivity is a core characteristic of externalizing problems and a robust predictor of alcohol use in adolescence. There is little evidence on the causal mechanisms through which impulsivity influences drinking or how they are affected by key social factors (peer influence). This study reports the development of the first comprehensive laboratory model of adolescent impulsivity and alcohol use. One-hundred and twenty adolescents (50% female) of legal drinking age (M = 19.47 years, SD = 1.12) in Australia (18+ years) were subjected to 1 of 3 experimental manipulations to increase impulsive behavior (reward cue exposure, negative mood induction, ego depletion)...
July 8, 2017: Behaviour Research and Therapy
https://www.readbyqxmd.com/read/28714219/visible-light-excited-ultralong-organic-phosphorescence-by-manipulating-intermolecular-interactions
#20
Suzhi Cai, Huifang Shi, Jiewei Li, Long Gu, Yun Ni, Zhichao Cheng, Shan Wang, Wei-Wei Xiong, Lin Li, Zhongfu An, Wei Huang
Visible light is much more available and less harmful than ultraviolet light, but ultralong organic phosphorescence (UOP) with visible-light excitation remains a formidable challenge. Here, a concise chemical approach is provided to obtain bright UOP by tuning the molecular packing in the solid state under irradiation of available visible light, e.g., a cell phone flashlight under ambient conditions (room temperature and in air). The excitation spectra exhibit an obvious redshift via the incorporation of halogen atoms to tune intermolecular interactions...
July 17, 2017: Advanced Materials
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