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https://www.readbyqxmd.com/read/28935488/utility-of-tc-99m-mdp-bone-spect-in-evaluation-of-osseous-involvement-in-craniofacial-malignancies
#1
Shabana Saeed, Saif Ul Haq, Muhammad Sohaib, Ali Nawaz Khan
PURPOSE: To assess the role of technetium-99m methoxy diphosphonate (Tc-99m MDP) single photon emission tomography (SPECT) imaging for the detection of osseous invasion in craniofacial malignancies. MATERIAL AND METHODS: The study was performed in 45 subjects using Tc-99m MDP (740 MBq). Out of 45 subjects, 30 were patients had different craniofacial malignancies, and 15 subjects who did not have any malignancy served as controls. Planar imaging was performed. Anterior, lateral and oblique lateral views of the skull were obtained...
August 24, 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/28935192/effect-of-priming-agents-on-shear-bond-strengths-of-resin-based-luting-agents-to-a-translucent-zirconia-material
#2
Shogo Yagawa, Futoshi Komine, Ryosuke Fushiki, Kei Kubochi, Fumiaki Kimura, Hideo Matsumura
PURPOSE: The purpose of the present study was to evaluate the effect of priming agents and artificial aging with thermocycling on shear bond strengths of two resin-based luting agents to a translucent zirconia material. METHODS: A total of 308 pairs of translucent zirconia disk specimens were divided into seven treatment groups: Alloy Primer (ALP), Clearfil Ceramic Primer Plus (CCP), Meta Fast Bonding Liner (MFB), MR. bond (MRB), Super-Bond PZ Primer Liquid B (PZB), V-Primer (VPR), and an unprimed group (UP)...
September 18, 2017: Journal of Prosthodontic Research
https://www.readbyqxmd.com/read/28903124/early-monitoring-of-osteoporosis-treatment-response-by-technetium-99m-methylene-diphosphonate-bone-scan
#3
Jingjing Lou, Guanghua Wen, Ke Dong, Yifan Zhang
OBJECTIVE: The aim of this study was to investigate the effectiveness of a technetium-99m-methylene diphosphonate (Tc-MDP) bone scan and the bone mineral density (BMD) test in monitoring the efficacy of osteoporosis (OP) treatment. PATIENTS AND METHODS: A total of 50 women with OP were prospectively enrolled in this study from January 2011 to October 2016 in our hospital. All the patients underwent a Tc-MDP whole-body bone scan and the BMD test before and after alendronate sodium treatment at 3, 6, 12 and 18 months, respectively...
October 2017: Nuclear Medicine Communications
https://www.readbyqxmd.com/read/28902727/solitary-osteogenic-sternum-plasmacytoma-on-bone-scintigraphy-and-fdg-pet-ct
#4
Ying Zhang, Changming Zhang, Hongyan Zhai
We reported a rare solitary osteogenic sternum plasmacytoma case. A 49-year-old woman experienced progressing pain in the sternum for 2 years. Abnormal Tc-MDP accumulation and increase in F-FDG uptake (SUVmax, 4.4) were co-localized with the osteogenic lesion in the sternum body detected by diagnostic CT. The lesion was histologically confirmed as plasma cell neoplasm suggestive of plasmacytoma. The patient had good response to radiotherapy.
September 11, 2017: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/28886592/new-rodent-population-models-may-inform-human-health-risk-assessment-and-identification-of-genetic-susceptibility-to-environmental-exposures
#5
REVIEW
Alison H Harrill, Kimberly A McAllister
BACKGROUND: This paper provides an introduction for environmental health scientists to emerging population-based rodent resources. Mouse reference populations provide an opportunity to model environmental exposures and gene-environment interactions in human disease and to inform human health risk assessment. OBJECTIVES: This review will describe several mouse populations for toxicity assessment, including older models such as the Mouse Diversity Panel (MDP), and newer models that include the Collaborative Cross (CC) and Diversity Outbred (DO) models...
August 15, 2017: Environmental Health Perspectives
https://www.readbyqxmd.com/read/28885541/identification-of-optimal-mask-size-parameter-for-noise-filtering-in-99mtc-methylene-diphosphonate-bone-scintigraphy-images
#6
Anil K Pandey, Chandan S Bisht, Param D Sharma, Sreedharan Thankarajan ArunRaj, Sameer Taywade, Chetan Patel, Chandrashekhar Bal, Rakesh Kumar
Tc-methylene diphosphonate (Tc-MDP) bone scintigraphy images have limited number of counts per pixel. A noise filtering method based on local statistics of the image produces better results than a linear filter. However, the mask size has a significant effect on image quality. In this study, we have identified the optimal mask size that yields a good smooth bone scan image. Forty four bone scan images were processed using mask sizes 3, 5, 7, 9, 11, 13, and 15 pixels. The input and processed images were reviewed in two steps...
September 6, 2017: Nuclear Medicine Communications
https://www.readbyqxmd.com/read/28872556/early-and-delayed-99mtc-mdp-spect-ct-findings-in-rheumatoid-arthritis-and-osteoarthritis
#7
Yasser G Abdelhafez, Rosalie J Hagge, Ramsey D Badawi, Siba P Raychaudhuri, Abhijit J Chaudhari
We report the case of a 74-year-old man with seropositive rheumatoid arthritis (RA) and radiographic osteoarthritis (OA) who underwent dual-phase high-resolution Tc-MDP SPECT/CT. Early radiotracer enhancement was noted in 2 RA joints of the right hand, both presenting with a ring-like uptake pattern around the joint, consistent with synovitis. Insignificant early enhancement was noted at the first carpometacarpal joint, despite presentation of CT features of OA. The delayed-phase enhancement patterns were distinct, showing asymmetry in RA joints, but a symmetric, joint-centered pattern for the OA joint...
September 1, 2017: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/28862687/changes-in-tannin-composition-of-syrah-grape-skins-and-seeds-during-fruit-ripening-under-contrasting-water-conditions
#8
Maria Kyraleou, Stamatina Kallithraka, Nikolaos Theodorou, Pierre-Louis Teissedre, Yorgos Kotseridis, Stefanos Koundouras
Tannin accumulation and composition were determined in skins and seeds isolated from Vitis vinifera cv. Syrah grapes submitted to contrasting water regimes under semiarid climatic conditions. Three irrigation treatments were conducted, starting at berry set through harvest of two growing seasons, 2011 and 2012: irrigation at 100% of crop evapotranspiration ETc (FI), irrigation at 50% of ETc (DI) and non-irrigated (NI). Seed total tannins did not vary with maturity but those of skins underwent a progressive decline (especially in 2011), expressed both on a fresh weight and on a per berry basis...
September 1, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28837901/the-effect-of-prr-ligands-on-the-membrane-potential-of-intestinal-epithelial-cells
#9
Diogo Magalhães, Patrício Soares-da-Silva, Fernando Magro
BACKGROUND: Disproportionate signaling through intestinal epithelial pattern recognition receptors (PRR) plays a role in IBD (inflammatory bowel disease) pathophysiology. Diarrhea is a clinical trademark of IBD and altered activity of K(+) channels (KC) may contribute to the low sodium absorption state. Here we sought to study the impact of PRR activation on the membrane potential of human intestinal epithelial cells and the role of KC in it. METHODS: All assays were performed in cultured HT-29 cells...
April 23, 2017: Pharmacological Reports: PR
https://www.readbyqxmd.com/read/28836855/enhancement-of-solubility-and-oral-bioavailability-of-manidipine-by-formation-of-ternary-solid-dispersion-with-d-%C3%AE-tocopherol-polyethylene-glycol-1000-succinate-and-copovidone
#10
Benchawan Chamsai, Sontaya Limmatvapirat, Srisagul Sungthongjeen, Pornsak Sriamornsak
CONTEXT: Low bioavailability of orally manidipine (MDP) is due to its low water solubility. OBJECTIVE: The objective of this study was to increase the solubility and bioavailability of MDP by fabricating ternary solid dispersion (tSD) with D-α-tocopherol polyethyleneglycol-1000-succinate and copovidone. METHODS: In this study, solid ternary phase diagram was applied in order to check the homogeneity of tSD prepared by melting and solidifying with dry ice...
August 24, 2017: Drug Development and Industrial Pharmacy
https://www.readbyqxmd.com/read/28834747/triggering-of-nod2-receptor-converts-inflammatory-ly6c-high-into-ly6c-low-monocytes-with-patrolling-properties
#11
Anne-Julie Lessard, Manon LeBel, Benoit Egarnes, Paul Préfontaine, Peter Thériault, Arnaud Droit, Alexandre Brunet, Serge Rivest, Jean Gosselin
The signals that regulate the fate of circulating monocytes remain unknown. In the present study, we demonstrate that triggering of the NOD2 receptor by muramyl dipeptide (MDP) converts inflammatory Ly6C(high) monocytes into patrolling Ly6C(low) monocytes. Administration of MDP to Nr4a1(-/-) mice, which lack Ly6C(low) monocytes, or to Ly6C(low)-depleted mice led to the emergence of blood-patrolling monocytes with a profile similar to that of Ly6C(low) monocytes, including high expression of CX3CR1 and LFA1...
August 22, 2017: Cell Reports
https://www.readbyqxmd.com/read/28829599/nonpyrogenic-molecular-adjuvants-based-on-norabu-muramyldipeptide-and-norabu-glucosaminyl-muramyldipeptide-synthesis-molecular-mechanisms-of-action-biological-activities-in-vitro-and-in-vivo
#12
Roman Effenberg, Pavlína Turánek Knötigová, Daniel Zyka, Hana Čelechovská, Josef Mašek, Eliška Bartheldyová, Frantisek Hubatka, Štěpán Koudelka, Róbert Lukáč, Anna Kovalová, David Saman, Michal Křupka, Lucia Barkocziová, Petr Kosztyu, Marek Šebela, Ladislav Drož, Michal Hučko, Mária Kanásová, Andrew David Miller, Milan Raška, Miroslav Ledvina, Jaroslav Turanek
Apyrogenic fatty acyl analogues of muramyldipeptide (MDP) (abbreviated N-L18norAbuGMDP, N-B30norAbuGMDP, norAbuMDP-Lys(L18), norAbuMDP-Lys(B30), norAbuGMDP-Lys(L18), norAbuGMDP-Lys(B30), (B30)norAbuMDP, (L18)norAbuMDP) were designed and synthesized comprising the normuramyl-L-α-aminobutanoyl (norAbu) structural moiety. All new analogues show depressed pyrogenicity both as free compounds and in liposomal formulations when tested in vivo in rabbits (s.c. and i.v. application). The potency of analogues in selective activation of NOD2 and NLRP3 (inflammasome) receptors in vitro, but not NOD1, is demonstrated using transgenic cell-based detection systems...
August 22, 2017: Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/28820178/erratum-e3-ubiquitin-ligase-znrf4-negatively-regulates-nod2-signalling-and-induces-tolerance-to-mdp
#13
Pradeep Bist, Wan Shoo Cheong, Aylwin Ng, Neha Dikshit, Bae Hoon Kim, Niyas Kudukkil Pulloor, Hanif Javanmard Khameneh, Matija Hedl, Avinash R Shenoy, Vanniarajan Balamuralidhar, Najib Bin Abdul Malik, Michelle Hong, Albert Neutzner, Keh-Chuang Chin, Koichi S Kobayashi, Antonio Bertoletti, Alessandra Mortellaro, Clara Abraham, John D MacMicking, Ramnik J Xavier, Bindu Sukumaran
This corrects the article DOI: 10.1038/ncomms15865.
August 18, 2017: Nature Communications
https://www.readbyqxmd.com/read/28814792/genetic-regulatory-effects-modified-by-immune-activation-contribute-to-autoimmune-disease-associations
#14
Sarah Kim-Hellmuth, Matthias Bechheim, Benno Pütz, Pejman Mohammadi, Yohann Nédélec, Nicholas Giangreco, Jessica Becker, Vera Kaiser, Nadine Fricker, Esther Beier, Peter Boor, Stephane E Castel, Markus M Nöthen, Luis B Barreiro, Joseph K Pickrell, Bertram Müller-Myhsok, Tuuli Lappalainen, Johannes Schumacher, Veit Hornung
The immune system plays a major role in human health and disease, and understanding genetic causes of interindividual variability of immune responses is vital. Here, we isolate monocytes from 134 genotyped individuals, stimulate these cells with three defined microbe-associated molecular patterns (LPS, MDP, and 5'-ppp-dsRNA), and profile the transcriptomes at three time points. Mapping expression quantitative trait loci (eQTL), we identify 417 response eQTLs (reQTLs) with varying effects between conditions...
August 16, 2017: Nature Communications
https://www.readbyqxmd.com/read/28813990/a-learning-based-agent-for-home-neurorehabilitation
#15
Andreas Lydakis, Yuanliang Meng, Christopher Munroe, Yi-Ning Wu, Momotaz Begum
This paper presents the iterative development of an artificially intelligent system to promote home-based neurorehabilitation. Although proper, structured practice of rehabilitation exercises at home is the key to successful recovery of motor functions, there is no home-program out there which can monitor a patient's exercise-related activities and provide corrective feedback in real time. To this end, we designed a Learning from Demonstration (LfD) based home-rehabilitation framework that combines advanced robot learning algorithms with commercially available wearable technologies...
July 2017: IEEE ... International Conference on Rehabilitation Robotics: [proceedings]
https://www.readbyqxmd.com/read/28813594/facile-purification-of-milligram-to-gram-quantities-of-condensed-tannins-according-to-mean-degree-of-polymerization-and-flavan-3-ol-subunit-composition
#16
Ron H Brown, Irene Mueller-Harvey, Wayne E Zeller, Laurie Reinhardt, Elisabetta Stringano, An Gea, Christopher Drake, Honorata M Ropiak, Christos Fryganas, Aina Ramsay, Emily E Hardcastle
Unambiguous investigation of condensed tannin (CT) structure-activity relationships in biological systems requires well-characterized, high-purity CTs. Sephadex LH-20 and Toyopearl HW-50F resins were compared for separating CTs from acetone/water extracts, and column fractions analyzed for flavan-3-ol subunits, mean degree of polymerization (mDP), and purity. Toyopearl HW-50F generated fractions with higher mDP values and better separation of procyanidins (PC) and prodelphinidins (PD) but required a prepurification step, needed more time for large scale purifications, and gave poorer recoveries...
September 1, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/28806250/recurrent-leiomyosarcoma-of-external-oblique-muscle-detected-on-99mtc-mdp-spect-ct
#17
Taisong Wang, Yan Xing, Wenli Qiao, Jinhua Zhao
A Tc-MDP bone scintigraphy was performed in an 88-year-old man with a history of right external oblique muscle leiomyosarcoma, which was resected 8 months ago. The static images showed abnormal tracer uptake in the region of resection bed. SPECT/CT images demonstrated that the increased activity was from a partially calcified soft tissue mass in external oblique muscle. Subsequent pathological examination confirmed recurrent tumor.
October 2017: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/28806245/gorham-stout-disease-affecting-the-mandible-bone-scintigraphy-and-computed-tomography-findings
#18
Soo Bin Park, Joon Young Choi, Soo Jeong Kim
We present images of a 13-year-old boy with Gorham-Stout disease affecting the mandible. Initial bone scintigraphy showed poor visualization of Tc-methylene diphosphonate (Tc-MDP) uptake in the mandible body. However, abnormally increased Tc-MDP uptake was noted in the bilateral mandibular rami. In the follow-up examination a year later, bone scintigraphy indicated that the disease had progressed to the bilateral mandibular rami with no uptake. In addition, massive osteolysis of the mandible was noted that had progressed since the initial computed tomography...
October 2017: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/28803178/treatment-of-unstable-thoracolumbar-fractures-does-fracture-level-fixation-accelerate-the-bone-healing
#19
Zühtü Özbek, Emre Özkara, Hasan Önner, Gültekin Baş, İpek Canan Erman, Hülya Özen, Emre Entok, Ali Arslantaş
OBJECTIVE: This study aimed to investigate the effect of fusion on short segment including fractured level (SSIFL) and long segment (LS) transpedicular fixation after acute thoracolumbar junction (TLJ) burst fractures. The two-year clinical and radiological follow-up results of the two groups were also compared. METHODS: Seventy-four patients were randomized into one of two groups: SSIFL (n: 39) or LS (n: 35). The SSIFL group included one level above and one level below, including the fracture level, while the LS group included two levels above and two levels below, excluding the fracture level, for the transpedicular fixation...
August 9, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28798389/the-mitochondrial-derived-peptides-humanins14g-and-small-humanin-like-peptide-2-exhibit-chaperone-like-activity
#20
Alan K Okada, Kazuki Teranishi, Fleur Lobo, J Mario Isas, Jialin Xiao, Kelvin Yen, Pinchas Cohen, Ralf Langen
Mitochondrial-derived peptides (MDPs) and their analogs have emerged as wide-spectrum, stress response factors protective in amyloid disease models. MDP cytoprotective functions are generally attributed to anti-apoptotic activity, however, little is known about their capacity to facilitate the cell's unfolded protein response via direct interactions with amyloidogenic proteins. Here, we explored the effects of the MDP-analog, humaninS14G (HNG), and the MDP, small humanin-like peptide 2 (SHLP2), on the misfolding of islet amyloid polypeptide (IAPP), a critical pathogenic step in type 2 diabetes mellitus (T2DM)...
August 10, 2017: Scientific Reports
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