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https://www.readbyqxmd.com/read/29356029/passive-transfer-models-of-myasthenia-gravis-with-muscle-specific-kinase-antibodies
#1
REVIEW
Jan J G M Verschuuren, Jaap J Plomp, Steve J Burden, Wei Zhang, Yvonne E Fillié-Grijpma, Inge E Stienstra-van Es, Erik H Niks, Mario Losen, Silvère M van der Maarel, Maartje G Huijbers
Myasthenia gravis (MG) with antibodies to muscle-specific kinase (MuSK) is characterized by fluctuating fatigable weakness. In MuSK MG, involvement of bulbar muscles, neck, and shoulder and respiratory weakness are more prominent than in acetylcholine receptor (AChR) MG. MuSK autoantibodies are mainly of the IgG4 subclass, and as such are unable to activate complement, have low affinity for Fc receptors, and are functionally monovalent. Therefore, the pathogenicity of IgG4 MuSK autoantibodies was initially questioned...
January 21, 2018: Annals of the New York Academy of Sciences
https://www.readbyqxmd.com/read/29355761/effects-of-dietary-spirulina-platensis-on-growth-performance-hematological-and-serum-biochemical-parameters-hepatic-antioxidant-status-immune-responses-and-disease-resistance-of-coral-trout-plectropomus-leopardus-lacepede-1802
#2
Wei Yu, Heizhao Lin, Yukai Yang, Xiaolin Huang, Chuanpeng Zhou, Zaiwang Zhang, Yafei Duan, Zhong Huang, Tao Li
The present study investigated the effects of dietary Spirulina platensis supplementation on growth performance, hematological and serum biochemical parameters, hepatic antioxidant status, immune responses and resistance to the pathogen infection in Coral trout Plectropomus leopardus. The fish were fed for 8-week with diets containing different levels of S. platensis: 0% (C), 2% (SP2), 4% (SP4), 6% (SP6), 8% (SP8) and 10% (SP10) as treatment groups, followed by a Vibrio harveyi infection test for 14 d. The study indicated that dietary supplementation with Spirulina platensis could significantly improve growth performance, and the highest weight gain rate (WGR) and specific growth rate (SGR) were observed in group SP10 (P < ...
January 17, 2018: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/29354659/chikungunya-outbreak-in-kedougou-southeastern-senegal-in-2009-2010
#3
Abdourahmane Sow, Oumar Faye, Mawlouth Diallo, Diawo Diallo, Rubing Chen, Ousmane Faye, Cheikh T Diagne, Mathilde Guerbois, Manfred Weidmann, Youssoupha Ndiaye, Cheikh Sadibou Senghor, Abdourahmane Faye, Ousmane M Diop, Bakary Sadio, Oumar Ndiaye, Douglas Watts, Kathryn A Hanley, Anta T Dia, Denis Malvy, Scott C Weaver, Amadou Alpha Sall
Background: In Senegal, Chikungunya virus (CHIKV), which is an emerging mosquito-borne alphavirus, circulates in a sylvatic and urban/domestic cycle and has caused sporadic human cases and epidemics since 1960s. However, the real impact of the CHIKV sylvatic cycle in humans and mechanisms underlying its emergence still remains unknown. Methodology: One thousand four hundred nine suspect cases of CHIKV infection, recruited from 5 health facilities located in Kedougou region, south-eastern Senegal, between May 2009 to March 2010, together with 866 serum samples collected from schoolchildren from 4 elementary schools in May and November 2009 from Kedougou were screened for anti-CHIKV immunoglobulin (Ig)M antibodies and, when appropriate, for viral nucleic acid by real-time polymerase chain reaction (rPCR) and virus isolation...
January 2018: Open Forum Infectious Diseases
https://www.readbyqxmd.com/read/29353721/design-synthesis-and-biological-evaluation-of-novel-catecholopyrimidine-based-pde4-inhibitor-for-the-treatment-of-atopic-dermatitis
#4
Baskaran Purushothaman, Parthasarathy Arumugam, Goutam Kulsi, Joon Myong Song
Selective inhibition of phosphodiesterase (PDE) 4B favorably suppresses the synthesis of inflammatory cytokines and subsequently arrest the development of atopic dermatitis via modulating the intracellular cAMP levels. Considering the side effects of corticosteroids, selective PDE4 inhibition could constitute an effective alternative therapy for the treatment of atopic dermatitis (AD). In this study, a series of novel catechol based compounds bearing pyrimidine as the core have been synthesized and screened for the PDE4 inhibitory properties...
December 19, 2017: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/29352463/temperature-dependency-of-intraguild-predation-between-native-and-invasive-crabs
#5
Tanya L Rogers, Tarik C Gouhier, David L Kimbro
Environmental factors such as temperature can affect the geographical distribution of species directly by exceeding physiological tolerances, or indirectly by altering physiological rates that dictate the sign and strength of species interactions. Although the direct effects of environmental conditions are relatively well studied, the effects of environmentally-mediated species interactions have garnered less attention. In this study, we examined the temperature-dependency of size-structured intraguild predation (IGP) between native blue crabs (Callinectes sapidus, the IG predator) and invasive green crabs (Carcinus maenas, the IG prey) to evaluate how the effect of temperature on competitive and predatory rates may influence the latitudinal distribution of these species...
January 20, 2018: Ecology
https://www.readbyqxmd.com/read/29351961/occupational-therapy-intervention-improves-glycemic-control-and-quality-of-life-among-young-adults-with-diabetes-the-resilient-empowered-active-living-with-diabetes-real-diabetes-randomized-controlled-trial
#6
Elizabeth A Pyatak, Kristine Carandang, Cheryl L P Vigen, Jeanine Blanchard, Jesus Diaz, Alyssa Concha-Chavez, Paola A Sequeira, Jamie R Wood, Robin Whittemore, Donna Spruijt-Metz, Anne L Peters
OBJECTIVE: To assess the efficacy of a manualized occupational therapy (OT) intervention (Resilient, Empowered, Active Living with Diabetes [REAL Diabetes]) to improve glycemic control and psychosocial well-being among ethnically diverse young adults with low socioeconomic status (SES) who have type 1 or type 2 diabetes. RESEARCH DESIGN AND METHODS: Eighty-one young adults (age 22.6 ± 3.5 years; hemoglobin A1c [HbA1c] = 10.8%/95 mmol/mol ± 1.9%/20.8 mmol/mol) were randomly assigned to the REAL Diabetes intervention group (IG) or an attention control group (CG) over 6 months...
January 19, 2018: Diabetes Care
https://www.readbyqxmd.com/read/29351731/a-chelicerate-specific-burst-of-nonclassical-dscam-diversity
#7
Guozheng Cao, Yang Shi, Jian Zhang, Hongru Ma, Shouqing Hou, Haiyang Dong, Weiling Hong, Shuo Chen, Hao Li, Yandan Wu, Pengjuan Guo, Xu Shao, Bingbing Xu, Feng Shi, Yijun Meng, Yongfeng Jin
BACKGROUND: The immunoglobulin (Ig) superfamily receptor Down syndrome cell adhesion molecule (Dscam) gene can generate tens of thousands of isoforms via alternative splicing, which is essential for both nervous and immune systems in insects. However, further information is required to develop a comprehensive view of Dscam diversification across the broad spectrum of Chelicerata clades, a basal branch of arthropods and the second largest group of terrestrial animals. RESULTS: In this study, a genome-wide comprehensive analysis of Dscam genes across Chelicerata species revealed a burst of nonclassical Dscams, categorised into four types-mDscam, sDscamα, sDscamβ, and sDscamγ-based on their size and structure...
January 19, 2018: BMC Genomics
https://www.readbyqxmd.com/read/29351310/healthy-ageing-at-work-efficacy-of-group-interventions-on-the-mental-health-of-nurses-aged-45-and-older-results-of-a-randomised-controlled-trial
#8
Imad Maatouk, Andreas Müller, Peter Angerer, Renate Schmook, Christoph Nikendei, Kirsten Herbst, Melanie Gantner, Wolfgang Herzog, Harald Gündel
OBJECTIVE: This multicentre, randomised controlled trial (RCT) aimed to evaluate the efficacy of a small-group intervention promoting successful ageing at work in older nurses (aged ≥45). METHOD: A sample of 115 nurses aged ≥45 from 4 trial sites in Germany were randomly assigned to either the intervention group (IG), that received a small-group intervention of seven weekly sessions of 120 min with a booster session after six weeks or to a wait-list control condition (WLC)...
2018: PloS One
https://www.readbyqxmd.com/read/29350362/which-common-test-should-be-used-to-assess-spleen-autotransplant-effect
#9
Ehsan Soltani, Mohsen Aliakbarian, Kamran Ghaffarzadegan
BACKGROUND: Historically, total splenectomy was the only choice of treatment for traumatic splenic injuries. However, nonoperative management and spleen-preserving surgical techniques are preferred in modern medicine. In some situations in which the surgeon has to perform splenectomy, spleen autotransplant may preserve the splenic function. Selecting the best method for evaluating the splenic autotransplant effect has been debated for several years. In this study, we compared three common tests in evaluating the implanted spleen function...
January 2018: Ulusal Travma Ve Acil Cerrahi Dergisi, Turkish Journal of Trauma & Emergency Surgery: TJTES
https://www.readbyqxmd.com/read/29348828/dose-escalation-by-image-guided-intensity-modulated-radiotherapy-leads-to-an-increase-in-pain-relief-for-spinal-metastases-a-comparison-study-with-a-regimen-of-30-gy-in-10-fractions
#10
Jinlan He, Jianghong Xiao, Xingchen Peng, Baofeng Duan, Yan Li, Ping Ai, Min Yao, Nianyong Chen
Purpose: Under the existing condition that the optimum radiotherapy regimen for spinal metastases is controversial, this study investigates the benefits of dose escalation by image-guided intensity-modulated radiotherapy (IG-IMRT) with 60-66 Gy in 20-30 fractions for spinal metastases. Results: In the dose-escalation group, each D50 of planning gross tumor volume (PGTV) was above 60 Gy and each Dmax of spinal cord planning organ at risk volume (PRV) was below 48 Gy...
December 22, 2017: Oncotarget
https://www.readbyqxmd.com/read/29348579/structural-basis-of-salm5-induced-ptp%C3%AE-dimerization-for-synaptic-differentiation
#11
Zhaohan Lin, Jianmei Liu, Huandi Ding, Fei Xu, Heli Liu
SALM5, a synaptic adhesion molecule implicated in autism, induces presynaptic differentiation through binding to the LAR family receptor protein tyrosine phosphatases (LAR-RPTPs) that have been highlighted as presynaptic hubs for synapse formation. The mechanisms underlying SALM5/LAR-RPTP interaction remain unsolved. Here we report crystal structures of human SALM5 LRR-Ig alone and in complex with human PTPδ Ig1-3 (MeA-). Distinct from other LAR-RPTP ligands, SALM5 mainly exists as a dimer with LRR domains from two protomers packed in an antiparallel fashion...
January 18, 2018: Nature Communications
https://www.readbyqxmd.com/read/29348429/structural-basis-of-trans-synaptic-interactions-between-ptp%C3%AE-and-salms-for-inducing-synapse-formation
#12
Sakurako Goto-Ito, Atsushi Yamagata, Yusuke Sato, Takeshi Uemura, Tomoko Shiroshima, Asami Maeda, Ayako Imai, Hisashi Mori, Tomoyuki Yoshida, Shuya Fukai
Synapse formation is triggered by trans-synaptic interactions of cell adhesion molecules, termed synaptic organizers. Three members of type-II receptor protein tyrosine phosphatases (classified as type-IIa RPTPs; PTPδ, PTPσ and LAR) are known as presynaptic organizers. Synaptic adhesion-like molecules (SALMs) have recently emerged as a family of postsynaptic organizers. Although all five SALM isoforms can bind to the type-IIa RPTPs, only SALM3 and SALM5 reportedly have synaptogenic activities depending on their binding...
January 18, 2018: Nature Communications
https://www.readbyqxmd.com/read/29346344/development-of-immune-and-microbial-environments-is-independently-regulated-in-the-mammary-gland
#13
K Niimi, K Usami, Y Fujita, M Abe, M Furukawa, Y Suyama, Y Sakai, M Kamioka, N Shibata, E J Park, S Sato, H Kiyono, H Yoneyama, H Kitazawa, K Watanabe, T Nochi, H Aso
Breastfeeding is important for mammals, providing immunological and microbiological advantages to neonates, together with the nutritional supply from the mother. However, the mechanisms of this functional diversity in the mammary gland remain poorly characterized. Here, we show that, similar to the gastrointestinal tract, the mammary gland develops immune and microbial environments consisting of immunoglobulin A (IgA) and the microflora, respectively, both of which are important for protecting neonates and the mother from infectious diseases...
December 20, 2017: Mucosal Immunology
https://www.readbyqxmd.com/read/29345367/cd300-family-receptors-regulate-eosinophil-survival-chemotaxis-and-effector-functions
#14
REVIEW
Perri Rozenberg, Hadar Reichman, Itay Moshkovits, Ariel Munitz
The CD300 family of receptors is an evolutionary conserved receptor family that belongs to the Ig superfamily and is expressed predominantly by the myeloid lineage. Over the past couple of years, accumulating data have shown that eosinophils express various Ig superfamily receptors that regulate key checkpoints in their biology including their maturation, transition from the bone marrow to the peripheral blood, migration, adhesion, survival, and effector functions in response to numerous activating signals such as IL-4, IL-33, and bacteria...
December 21, 2017: Journal of Leukocyte Biology
https://www.readbyqxmd.com/read/29344506/micrornas-in-renal-diseases-a-potential-novel-therapeutic-target
#15
Federica Petrillo, Anna Iervolino, Miriam Zacchia, Adelina Simeoni, Cristina Masella, Giovanna Capolongo, Alessandra Perna, Giovambattista Capasso, Francesco Trepiccione
Background: MicroRNAs (miRNAs) are a family of short noncoding RNAs that play important roles in posttranscriptional gene regulation. miRNAs inhibit target gene expression by blocking protein translation or by inducing mRNA degradation and therefore have the potential to modulate physiological and pathological processes. Summary: In the kidney, miRNAs play a role in the organogenesis and in the pathogenesis of several diseases, including renal carcinoma, diabetic nephropathy, cystogenesis, and glomerulopathies...
December 2017: Kidney Diseases
https://www.readbyqxmd.com/read/29342896/how-does-counselling-in-a-stationary-health-care-setting-affect-the-attendance-in-a-standardised-sports-club-programme-process-evaluation-of-a-quasi-experimental-study
#16
Sylvia Titze, Christian Lackinger, Lena Grossschaedl, Albert Strehn, Thomas E Dorner, Josef Niebauer, Wolfgang Schebesch-Ruf
Actions in partnership across sectors is one principle for the promotion of health behaviours. The objective of this study was to describe the participation in a sports club-based exercise programme-named JACKPOT-following an intervention in a health care setting. Focus was given to the recruitment into JACKPOT, the attendance level, and whether the different programme elements were implemented as intented. The practicability of the project was also retrospectively rated. Participants were 238 inactive people (50% women) between 30 and 65 years of age who attended a health resort...
January 14, 2018: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/29342878/improved-photo-ignition-of-carbon-nanotubes-ferrocene-using-a-lipophilic-porphyrin-under-white-power-led-irradiation
#17
Paolo Visconti, Patrizio Primiceri, Roberto de Fazio, Antonio Paolo Carlucci, Selma Elaine Mazzetto, Giuseppe Mele
The aim of this work is to investigate and characterize the photo-ignition process of dry multi-walled carbon nanotubes (MWCNTs) mixed with ferrocene (FeCp₂) powder, using an LED (light-emitting diode) as the light source, a combination that has never been used, to the best of our knowledge. The ignition process was improved by adding a lipophilic porphyrin (H₂Pp) in powder to the MWCNTs/FeCp₂ mixtures-thus, a lower ignition threshold was obtained. The ignition tests were carried out by employing a continuous emission and a pulsed white LED in two test campaigns...
January 13, 2018: Materials
https://www.readbyqxmd.com/read/29340321/randomized-clinical-trial-design-to-assess-abatacept-in-resistant-nephrotic-syndrome
#18
Howard Trachtman, Debbie S Gipson, Michael Somers, Cathie Spino, Sharon Adler, Lawrence Holzman, Jeffrey B Kopp, John Sedor, Sandra Overfield, Ayanbola Elegbe, Michael Maldonado, Anna Greka
Introduction: Treatment-resistant nephrotic syndrome is a rare form of glomerular disease that occurs in children and adults. No Food and Drug Administration-approved treatments consistently achieve remission of proteinuria and preservation of kidney function. CD80 (B7-1) can be expressed on injured podocytes, and administration of abatacept (modified CTLA4-Ig based on a natural ligand to CD80) has been associated with sustained normalization of urinary protein excretion and maintenance of glomerular filtration rate in experimental and clinical settings...
January 2018: KI Reports
https://www.readbyqxmd.com/read/29338152/generation-and-characterization-of-siglec-f-specific-monoclonal-antibodies
#19
Sima Shahmohammadi-Farid, Roya Ghods, Mahmood Jeddi-Tehrani, Ali-Ahmad Bayat, Nazanin Mojtabavi, Alireza Razavi, Amir-Hassan Zarnani
Siglec-F (SF) is a surface glycoprotein expressed by mouse eosinophils and induces caspase- and mitochondria-dependent apoptosis after engagement with its cognate ligand or specific antibodies. This targeting eosinophils by monoclonal antibodies may help diverse diseases associated with increased frequency of eosinophils including allergy and asthma. In this paper, production of murine and rat monoclonal antibodies (mAbs) against Siglec-F has been addressed. Balb/c mice were immunized with siglec-F1 (SF1) and siglec-F2 (SF2) synthetic peptides conjugated to a carrier protein...
December 2017: Iranian Journal of Allergy, Asthma, and Immunology
https://www.readbyqxmd.com/read/29337138/let-7-suppresses-b-cell-activation-through-restricting-the-availability-of-necessary-nutrients
#20
Shuai Jiang, Wei Yan, Shizhen Emily Wang, David Baltimore
The control of uptake and utilization of necessary extracellular nutrients-glucose and glutamine-is an important aspect of B cell activation. Let-7 is a family of microRNAs known to be involved in metabolic control. Here, we employed several engineered mouse models, including B cell-specific overexpression of Lin28a or the let-7a-1/let-7d/let-7f-1 cluster (let-7adf) and knockout of individual let-7 clusters to show that let-7adf specifically inhibits T cell-independent (TI) antigen-induced immunoglobulin (Ig)M antibody production...
January 10, 2018: Cell Metabolism
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