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https://www.readbyqxmd.com/read/28433528/evolutionary-history-of-the-t-cell-receptor-complex-as-revealed-by-small-spotted-catshark-scyliorhinus-canicula
#1
Rita Pettinello, Anthony K Redmond, Christopher J Secombes, Daniel J Macqueen, Helen Dooley
In every jawed vertebrate species studied so far, the T cell receptor (TCR) complex is composed of two different TCR chains (α/β or γ/δ) and a number of CD3 subunits responsible for transmitting signals into the T cell. In this study, we characterised all of the TCR and CD3 genes of small-spotted catshark (Scyliorhinus canicula) and analysed their expression in a broad range of tissues. While the TCR complex is highly conserved across jawed vertebrates, we identified a number of differences in catshark, most notably the presence of two copies of both TCRβ and CD3γδ, and the absence of a functionally-important proline rich region from CD3ε...
April 19, 2017: Developmental and Comparative Immunology
https://www.readbyqxmd.com/read/28432167/a-tale-of-two-vasculitides-biopsy-proven-giant-cell-arteritis-followed-by-the-independent-development-of-renal-limited-microscopic-polyangiitis
#2
Roman Zuckerman, Mayur Patel, Deborah R Alpert
We describe an 80-year-old woman who presented with headaches, bilateral jaw claudication and visual symptoms. She was diagnosed with giant cell arteritis, which was confirmed by temporal artery biopsy. She was treated with high-dose prednisone followed by a slow taper, with complete resolution of symptoms. Approximately 4 years later, she developed progressively worsening renal function associated with haematuria. Serological workup revealed a high-titre perinuclear antinuclear cytoplasmic antibody and antibodies to myeloperoxidase...
April 21, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28430715/computed-tomography-of-the-head-and-neck-region-for-tumor-staging-comparison-of-dual-source-dual-energy-and-low-kilovolt-single-energy-acquisitions
#3
Matthias Stefan May, Joscha Bruegel, Michael Brand, Marco Wiesmueller, Bernhard Krauss, Thomas Allmendinger, Michael Uder, Wolfgang Wuest
PURPOSE: The aim of this study was to intra-individually compare the image quality obtained by dual-source, dual-energy (DSDE) computed tomography (CT) examinations and different virtual monoenergetic reconstructions to a low single-energy (SE) scan. MATERIALS AND METHODS: Third-generation DSDE-CT was performed in 49 patients with histologically proven malignant disease of the head and neck region. Weighted average images (WAIs) and virtual monoenergetic images (VMIs) for low (40 and 60 keV) and high (120 and 190 keV) energies were reconstructed...
April 20, 2017: Investigative Radiology
https://www.readbyqxmd.com/read/28430159/efficacy-of-low-molecular-weight-fucoidan-as-a-supplemental-therapy-in-metastatic-colorectal-cancer-patients-a-double-blind-randomized-controlled-trial
#4
Hsiang-Lin Tsai, Chi-Jung Tai, Ching-Wen Huang, Fang-Rong Chang, Jaw-Yuan Wang
BACKGROUND: Low-molecular-weight fucoidan (LMF) is widely used as a food supplement for cancer patients. However, all of the studies are in vitro or were conducted using mice. Therefore, powerful clinical evidence for LMF use is relatively weak. This study aimed to evaluate the efficacy of LMF as a supplemental therapy to chemo-target agents in metastatic colorectal cancer (mCRC) patients. METHODS: We conducted a prospective, randomized, double-blind, controlled trial to evaluate the efficacy of LMF as a supplemental therapy to chemotarget agents in patients with metastatic colorectal cancer (mCRC)...
April 21, 2017: Marine Drugs
https://www.readbyqxmd.com/read/28429855/coincidence-of-mandibular-fractures-with-isolated-posterior-maxillary-sinus-fractures
#5
Sebastian Blatt, Roman Rahimi-Nedjat, Keyvan Sagheb, Lisa Piechowiak, Christian Walter, Dan Brüllmann
BACKGROUND/AIM: There is no data available to show whether there is a relationship between mandibular fractures and isolated fractures of the posterior and/or latera wals of the maxillary sinus. The aim of this study was to determine whether there is a coincidence between these fracture patterns. METHODS: Four hundred large volume cone beam computed tomography scans (CBCT) of patients with a fracture of the mandible between 2008 and 2013 were analyzed retrospectively...
April 21, 2017: Dental Traumatology: Official Publication of International Association for Dental Traumatology
https://www.readbyqxmd.com/read/28429336/effects-of-a-curcumin-based-supplementation-in-asymptomatic-subjects-with-low-bone-density-a-preliminary-24-week-supplement-study
#6
A Riva, S Togni, L Giacomelli, F Franceschi, R Eggenhoffner, B Feragalli, G Belcaro, M Cacchio, H Shu, M Dugall
OBJECTIVE: Osteopenia is a chronic bone condition characterized by decreased calcification, density, or bone mass that, if untreated, can lead to osteoporosis and bone fractures. Although its increasing prevalence, nowadays osteopenia is not adequately prevented and managed. In this study, we evaluated the efficacy, in term of changes in bone density, and safety of an oral formulation based on turmeric phytosome (Meriva®), in subjects suffering from low bone density. PATIENTS AND METHODS: 57 otherwise healthy subjects with low bone density were enrolled in this pilot, supplement study...
April 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/28428809/leucine-rich-repeat-containing-variable-lymphocyte-receptors-as-modules-to-target-plant-expressed-proteins
#7
André C Velásquez, Kinya Nomura, Max D Cooper, Brantley R Herrin, Sheng Yang He
BACKGROUND: The ability to target and manipulate protein-based cellular processes would accelerate plant research; yet, the technology to specifically and selectively target plant-expressed proteins is still in its infancy. Leucine-rich repeats (LRRs) are ubiquitously present protein domains involved in mediating protein-protein interactions. LRRs confer the binding specificity to the highly diverse variable lymphocyte receptor (VLR) antibodies (including VLRA, VLRB and VLRC types) that jawless vertebrates make as the functional equivalents of jawed vertebrate immunoglobulin-based antibodies...
2017: Plant Methods
https://www.readbyqxmd.com/read/28425854/rationale-design-synthesis-cytotoxicity-evaluation-and-molecular-docking-studies-of-1-3-4-oxadiazole-analogues
#8
Mohamed Jawed Ahsan, Arun Choupra, Rakesh Kumar Sharma, Surender Singh Jadav, Mohd Zaheen Hassan, Mohammed Afroz Bakht, Pannala Padmaja, Abdulmalik Bin Saleh Al-Tamimi, Mohammed H Geesi
We report herein, the synthesis of two new series of oxadiazole analogues, and their cytotoxicity evaluation. The oxadiazole analogues (5a-h and 12a-h) were structurally related to the heterocyclic (1,3,4- oxadiazole) linked aryl core of IMC-038525 (tubulin polymerization inhibitor), NSC 776715, and NSC 776716, with further modification by incorporating methylene linker. The title compounds (5a-h and 12a-h) were synthesized in good yields, and were characterized by IR, NMR, and mass spectral data. The cytotoxicity evaluation was carried out according to the National Cancer Institute (NCI US) Protocol against NCI-60 human cell lines derived from nine different panels...
April 19, 2017: Anti-cancer Agents in Medicinal Chemistry
https://www.readbyqxmd.com/read/28425483/a-genome-wide-association-study-identifies-six-novel-risk-loci-for-primary-biliary-cholangitis
#9
Fang Qiu, Ruqi Tang, Xianbo Zuo, Xingjuan Shi, Yiran Wei, Xiaodong Zheng, Yaping Dai, Yuhua Gong, Lan Wang, Ping Xu, Xiang Zhu, Jian Wu, Chongxu Han, Yueqiu Gao, Kui Zhang, Yuzhang Jiang, Jianbo Zhou, Youlin Shao, Zhigang Hu, Ye Tian, Haiyan Zhang, Na Dai, Lei Liu, Xudong Wu, Weifeng Zhao, Xiaomin Zhang, Zhidong Zang, Jinshan Nie, Weihao Sun, Yi Zhao, Yuan Mao, Po Jiang, Hualiang Ji, Qing Dong, Junming Li, Zhenzhong Li, Xinli Bai, Li Li, Maosong Lin, Ming Dong, Jinxin Li, Ping Zhu, Chan Wang, Yanqiu Zhang, Peng Jiang, Yujue Wang, Rohil Jawed, Jing Xu, Yu Zhang, Qixia Wang, Yue Yang, Fan Yang, Min Lian, Xiang Jiang, Xiao Xiao, Yanmei Li, Jingyuan Fang, Dekai Qiu, Zhen Zhu, Hong Qiu, Jianqiong Zhang, Wenyan Tian, Sufang Chen, Ling Jiang, Bing Ji, Ping Li, Guochang Chen, Tianxue Wu, Yan Sun, Jianjiang Yu, Huijun Tang, Michun He, Min Xia, Hao Pei, Lihua Huang, Zhuye Qing, Jianfang Wu, Qinghai Huang, Junhai Han, Wei Xie, Zhongsheng Sun, Jian Guo, Gengsheng He, M Eric Gershwin, Zhexiong Lian, Xiang Liu, Michael F Seldin, Xiangdong Liu, Weichang Chen, Xiong Ma
Primary biliary cholangitis (PBC) is an autoimmune liver disease with a strong hereditary component. Here, we report a genome-wide association study that included 1,122 PBC cases and 4,036 controls of Han Chinese descent, with subsequent replication in a separate cohort of 907 PBC cases and 2,127 controls. Our results show genome-wide association of 14 PBC risk loci including previously identified 6p21 (HLA-DRA and DPB1), 17q12 (ORMDL3), 3q13.33 (CD80), 2q32.3 (STAT1/STAT4), 3q25.33 (IL12A), 4q24 (NF-κB) and 22q13...
April 20, 2017: Nature Communications
https://www.readbyqxmd.com/read/28425479/perturbed-oral-motor-control-due-to-anesthesia-during-intraoral-manipulation-of-food
#10
Joannis Grigoriadis, Abhishek Kumar, Peter Svensson, Krister G Svensson, Mats Trulsson
Sensory information from periodontal mechanoreceptors (PMRs) surrounding the roots of natural teeth is important for optimizing the positioning of food and adjustment of force vectors during precision biting. The present experiment was designed to test the hypothesis; that reduction of afferent inputs from the PMRs, by anesthesia, perturbs the oral fine motor control and related jaw movements during intraoral manipulation of morsels of food. Thirty healthy volunteers with a natural dentition were equally divided into experimental and control groups...
April 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28425084/independent-dose-verification-for-brain-stereotactic-radiotherapy-using-different-add-on-micro-multi-leaf-collimators
#11
Shiro Nishiyama, Satoru Ishibashi, Ryo Takahashi, Hidenobu Tachibana
An add-on micro multi-leaf collimator (mMLC) is used for stereotactic radiosurgery (SRS) and brain stereotactic radiotherapy (SRT), in which rotational radiotherapy may make more complex and time-consuming. We performed a retrospective study of an independent dose calculation verification for brain SRS and SRT in two institutions to show the accuracy of the verification system and propose a tolerance value for the verification. Several comparisons of static plans and patients' plans were conducted using a phantom measurement, and patients' plans using the patients' own computed tomography image...
April 19, 2017: Radiological Physics and Technology
https://www.readbyqxmd.com/read/28424735/tongue-necrosis-secondary-to-giant-cell-arteritis-a-case-report-and-literature-review
#12
Rafael Alex Barbosa de Siqueira Sobrinho, Karolina Cayres Alvino de Lima, Helena Carvalho Moura, Mônica Modesto Araújo, Christyanne Maria Rodrigues Barreto de Assis, Pedro Alves da Cruz Gouveia
Giant cell arteritis is a form of vasculitis involving the medium- and large-sized arteries that chiefly affects older people. Clinical findings are headache, jaw claudication, fever, pain, and thickening of the temporal artery. The most feared complication is visual loss due to impairment of the ophthalmic artery and posterior ciliary arteries. This a case report of an 85-year-old male presenting with headache and jaw pain, who was admitted with tongue necrosis as an initial manifestation of giant cell arteritis...
2017: Case Reports in Medicine
https://www.readbyqxmd.com/read/28424660/ccl2-monocyte-chemoattractant-protein-1-and-parathyroid-hormone-action-on-bone
#13
REVIEW
Jawed Akhtar Siddiqui, Nicola C Partridge
Chemokines are small molecules that play a crucial role as chemoattractants for several cell types, and their components are associated with host immune responses and repair mechanisms. Chemokines selectively recruit monocytes, neutrophils, and lymphocytes and induce chemotaxis through the activation of G protein-coupled receptors. Two well-described chemokine families (CXC and CC) are known to regulate the localization and trafficking of immune cells in cases of injury, infection, and tumors. Monocyte chemoattractant protein 1 (MCP-1/CCL2) is one of the important chemokines from the CC family that controls migration and infiltration of monocytes/macrophages during inflammation...
2017: Frontiers in Endocrinology
https://www.readbyqxmd.com/read/28422703/differential-hemoglobin-a-sequestration-between-hemodialysis-modalities
#14
Uzma Naseeb, Shamshad Zarina, Theres Jägerbrink, Jawed Shafqat, Hans Jörnvall, Jonas Axelsson
This report evaluates plasma protein patterns, dialysates and protein analysis of used dialysis membranes from the same patient under hemodialysis in three separate modalities, using high-flux membranes in concentration-driven transport (HD), convection-driven hemofiltration (HF) and combined hemodialfiltration (HDF). The plasma protein changes induced by each of the three dialysis modalities showed small differences in proteins identified towards our previous plasma analyses of chronic kidney disease (CKD) patients...
April 19, 2017: Biomolecular Concepts
https://www.readbyqxmd.com/read/28422596/agenesis-of-third-molars-among-turkish-children-between-the-ages-of-12-and-18-years-a-retrospective-radiographic-study
#15
Gulser Kilinç, Ozlem Kıpcak Akkemik, Umit Candan, Mehmet Sinan Evcil, Hulya Ellidokuz
PURPOSE: The aim of this study was to investigate the agenesis of third molars (M3) in children with permanent dentition in a limited population in the province of Izmir, Turkey. STUDY DESIGN: The panoramic radiographs of 773 patients (457 females, 316 males) were evaluated retrospectively at the Dental Hospital of Ministry of Health in İzmir, Turkey. The patients' ages ranged from 12-18 years. The agenesis of M3 teeth was investigated according to maxilla and mandible and right and left distribution...
2017: Journal of Clinical Pediatric Dentistry
https://www.readbyqxmd.com/read/28422401/mlc-based-penumbra-softener-of-edw-borders-to-reduce-junction-inhomogeneities
#16
Stanislaw Szpala, Kirpal Kohli
Junctions of fields are known to be susceptible to developing cold or hot spots in the presence of even small geometrical misalignments. Reduction of these dose inhomogeneities can be accomplished through decreasing the dose gradients in the penumbra, but currently it cannot be done for enhanced dynamic wedges (EDW). An MLC-based penumbra softener was developed in the developer mode of TrueBeam linacs to reduce dose gradients across the side border of EDWs. The movement of each leaf was individually synchronized with the movement of the dynamic Y jaw to soften the penumbra in the same manner along the entire field border, in spite of the presence of the dose gradient of the EDW...
April 19, 2017: Journal of Applied Clinical Medical Physics
https://www.readbyqxmd.com/read/28421609/description-and-quantitative-analysis-of-the-dentition-of-the-southern-thorny-skate-amblyraja-doellojuradoi
#17
REVIEW
G Delpiani, M C Spath, M Deli Antoni, M Delpiani
A description of the tooth morphology of 234 jaws from the southern thorny skate Amblyraja doellojuradoi in the south-west Atlantic Ocean is given. Seven rows of teeth were selected and length and width of each tooth in these rows were measured. It was found that functional series corresponds to the third teeth and the average width and length of these teeth were compared among jaws, maturity stages, sexes and rows. Generalized linear models were used to determine the subset of measures that most contribute to explain the variability between groups...
April 19, 2017: Journal of Fish Biology
https://www.readbyqxmd.com/read/28421201/reconstructive-and-regenerative-therapy-of-atrophic-jaws-with-new-implant-techniques-preclinical-and-clinical-studies
#18
EDITORIAL
Carmen Mortellaro, Sérgio Alexandre Gehrke, Eitan Mijiritsky
No abstract text is available yet for this article.
2017: BioMed Research International
https://www.readbyqxmd.com/read/28420009/temporal-summation-and-motor-function-modulation-during-repeated-jaw-movements-in-patients-with-temporomandibular-disorder-pain-and-healthy-controls
#19
Yuanxiu Zhang, Sheng Shao, Jinglu Zhang, Lin Wang, Kelun Wang, Peter Svensson
Temporal summation of nociceptive inputs may be an important pathophysiological mechanism in temporomandibular disorders (TMD) pain; however, it remains unknown how natural jaw function relates to underlying pain mechanisms. This study evaluated changes in pain and movement patterns during repeated jaw movements in patients with painful temporomandibular joints (TMJ) compared with healthy controls. Twenty patients with TMD with TMJ pain, and an anterior disk displacement without reduction and 20 age- and gender-matched healthy volunteers were included...
March 31, 2017: Pain
https://www.readbyqxmd.com/read/28419845/does-orthognathic-surgery-cause-or-cure-temporomandibular-disorders-a%C3%A2-systematic-review-and-meta-analysis
#20
REVIEW
Essam Ahmed Al-Moraissi, Larry M Wolford, Daniel Perez, Daniel M Laskin, Edward Ellis
PURPOSE: There is still controversy about whether orthognathic surgery negatively or positively affects temporomandibular disorders (TMDs). The purpose of this study was to determine whether orthognathic surgery has a beneficial or deleterious effect on pre-existing TMDs. MATERIALS AND METHODS: A systematic review and meta-analysis were conducted based on Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. We searched 3 major databases to locate all pertinent articles published from 1980 to March 2016...
March 24, 2017: Journal of Oral and Maxillofacial Surgery
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