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https://www.readbyqxmd.com/read/28329592/giant-subungual-glomus-tumor-clinical-dermoscopy-imagiologic-and-surgery-details
#1
Ana Filipa Duarte, Osvaldo Correia, Hugo Barreiros, Eckart Haneke
Glomus tumor is a rare benign vascular hamartoma derived from the modified smooth muscle cells of the glomus body. Paroxysmal pain is the leading symptom. A 78-year-old woman presented at our clinic with a 50-year history of a slow growing painful purple blue tender nodule under the right fourth finger nail. Dermoscopy and magnetic ressonance confirmed the presence of a large subungual tumor and total surgical excision was performed after partial nail plate avulsion. Histologic examination confirmed a glomus tumor...
October 15, 2016: Dermatology Online Journal
https://www.readbyqxmd.com/read/28328630/fluorescein-isothiocyanate-a-novel-application-for-lymphatic-surgery
#2
Lisa Spiguel, Christiana Shaw, Adam Katz, Lifei Guo, Hung-Chi Chen, Bernard T Lee, Dhruv Singhal
The Lymphatic Microsurgical Preventing Healing Approach (LYMPHA) procedure entails performing a lymphovenous bypass (LVB) at the time of axillary lymph node dissection to reduce lymphedema risk. The two most common fluorophores utilized in LVB are blue dye and indocyanine green. We developed a novel application of fluorescein isothiocyanate for intraoperative lymphatic mapping. Our goal is to demonstrate the safety and efficacy of fluorescein isothiocyanate for this application. We reviewed a prospectively collected database on breast cancer patients who underwent LYMPHA from March to September 2015...
March 21, 2017: Annals of Plastic Surgery
https://www.readbyqxmd.com/read/28324936/a-preliminary-study-on-multi-wavelength-ppg-based-pulse-transit-time-detection-for-cuffless-blood-pressure-measurement
#3
Jing Liu, Yuan-Ting Zhang, Xiao-Rong Ding, Wen-Xuan Dai, Ni Zhao
Pulse transit time (PTT) has been widely studied as an index of blood pressure (BP) changes. In recent years, some prototypes of PTT-based wearable BP measurement devices have been developed, which can relieve users from the discomfort caused by the inflating cuff used in auscultatory and oscillometric BP measurement techniques. However, in the common practice for PTT detection, multi-site sensor implementation on human body is required, making it difficult for the integration of wearable devices. Since multi-wavelength (MW) photoplethysmogram (PPG) signals carry blood pulsation information of different blood vessels embedded in different skin depths, the time difference between different wavelength PPG signals collected at the same body site can be treated as a special PTT on a short length of blood vessels beneath the skin...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28322269/a-ras-gtpase-associated-protein-is-involved-in-the-phototropic-and-circadian-photobiology-responses-in-fungi
#4
Silvia Polaino, José M Villalobos-Escobedo, Viplendra P S Shakya, Alejandro Miralles-Durán, Suman Chaudhary, Catalina Sanz, Mahdi Shahriari, Eva M Luque, Arturo P Eslava, Luis M Corrochano, Alfredo Herrera-Estrella, Alexander Idnurm
Light is an environmental signal perceived by most eukaryotic organisms and that can have major impacts on their growth and development. The MadC protein in the fungus Phycomyces blakesleeanus (Mucoromycotina) has been postulated to form part of the photosensory input for phototropism of the fruiting body sporangiophores, but the madC gene has remained unidentified since the 1960s when madC mutants were first isolated. In this study the madC gene was identified by positional cloning. All madC mutant strains contain loss-of-function point mutations within a gene predicted to encode a GTPase activating protein (GAP) for Ras...
March 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28321581/neurobehavioural-toxicity-of-iron-oxide-nanoparticles-in-mice
#5
Vasanth Dhakshinamoorthy, Vijayprakash Manickam, Ekambaram Perumal
Iron oxide nanoparticles (Fe2O3-NPs) are widely used in various biomedical applications, extremely in neurotheranostics. Simultaneously, Fe2O3-NP usage is of alarming concern, as its exposure to living systems causes deleterious effects due to its redox potential. However, study on the neurobehavioural impacts of Fe2O3-NPs is very limited. In this regard, adult male mice were intraperitoneally administered with Fe2O3-NPs (25 and 50 mg/kg body weight) once a week for 4 weeks. A significant change in locomotor behaviour and spatial memory was observed in Fe2O3-NP-treated animals...
March 20, 2017: Neurotoxicity Research
https://www.readbyqxmd.com/read/28318977/aromatic-decoration-determines-the-formation-of-anthocyanic-vacuolar-inclusions
#6
Kalyani Kallam, Ingo Appelhagen, Jie Luo, Nick Albert, Huaibi Zhang, Simon Deroles, Lionel Hill, Kim Findlay, Øyvind M Andersen, Kevin Davies, Cathie Martin
Anthocyanins are some of the most widely occurring secondary metabolites in plants, responsible for the orange, red, purple, and blue colors of flowers and fruits and red colors of autumn leaves. These pigments accumulate in vacuoles, and their color is influenced by chemical decorations, vacuolar pH, the presence of copigments, and metal ions. Anthocyanins are usually soluble in the vacuole, but in some plants, they accumulate as discrete sub-vacuolar structures. Studies have distinguished intensely colored intra-vacuolar bodies observed in the cells of highly colored tissues, termed anthocyanic vacuolar inclusions (AVIs), from more globular, membrane-bound anthocyanoplasts...
March 8, 2017: Current Biology: CB
https://www.readbyqxmd.com/read/28287033/marine-macromolecules-cross-linked-hydrogel-scaffolds-as-physiochemically-and-biologically-favorable-entities-for-tissue-engineering-applications
#7
Muraleedhara Kurup G, Sumayya A S
Marine biopolymer composite materials provide a technological platform for launching biomedical applications. Biomaterials demand good biocompatibility without the possibility of inflammation or foreign body reactions. In this study, we prepared two biocomposite hydrogels namely; HAC (hydroxyapatite, alginate & chitosan) and HACF (hydroxyapatite, alginate, chitosan & fucoidan) followed by calcium chloride cross linking. The prepared scaffolds were characterized by Fourier Transform infrared spectroscopy (FT-IR) and scanning electron microscopy (SEM)...
March 11, 2017: Journal of Biomaterials Science. Polymer Edition
https://www.readbyqxmd.com/read/28281012/novel-endodontic-sealers-induce-cell-cytotoxicity-and-apoptosis-in-a-dose-dependent-behavior-and-favorable-response-in-mice-subcutaneous-tissue
#8
L A B Silva, L U Azevedo, A Consolaro, F Barnett, Y Xu, R A Battaglino, P S Cañadas, Katharina Morant Holanda de Oliveira, R A B Silva
OBJECTIVES: The objective of the present study is to evaluate the in vitro cytotoxicity and in vivo biocompatibility of two novel endodontic sealers: RealSeal XT1 and Sealapex Xpress on the subcutaneous connective tissue of mice. MATERIALS AND METHODS: The cytotoxicity was assessed by cell viability using the MTT assay (one-way ANOVA), trypan blue test (Mann-Whitney) and cell apoptosis by flow cytometer. For the subcutaneous study, polyethylene tubes filled with the sealers were implanted in 70 BALB/c mice: 6 experimental groups (n = 10/group) and 2 control groups with empty tubes (n = 5/group)...
March 9, 2017: Clinical Oral Investigations
https://www.readbyqxmd.com/read/28274148/selection-of-developmentally-competent-human-oocytes-aspirated-during-cesarean-section
#9
Diego Duarte Alcoba, Edimárlei Gonsales Valério, Maiara Conzatti, Júlia Schneider, Edison Capp, Helena von Eye Corleta, Ilma Simoni Brum
PURPOSE: To evaluate the efficiency/safety of Brilliant Cresyl Blue (BCB) staining as a selection method of developmentally competent immature human oocytes. MATERIALS AND METHODS: Immature oocytes of 32 pregnant women were recovered during cesarean section (CS). After retrieval, 92 oocytes were randomly divided into two groups: control (directly disposed to in vitro maturation - IVM) and treated - exposed to BCB 26 μM during 60 min. After staining, the treated group was classified as cytoplasm coloration, BCB positive (blue) or negative (colorless), and then disposed to IVM...
March 8, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28265777/a-prospective-cohort-study-comparing-colorimetric-and-fluorescent-imaging-for-sentinel-lymph-node-mapping-in-endometrial-cancer
#10
Robert W Holloway, Sarfraz Ahmad, James E Kendrick, Glenn E Bigsby, Lorna A Brudie, Giselle B Ghurani, Nicole M Stavitzski, Jasmine L Gise, Susan B Ingersoll, Julie W Pepe
BACKGROUND: This prospective cohort study aimed to assess sentinel lymph node (SLN) mapping using isosulfan blue (ISB) compared with ISB plus indocyanine green (ICG) and near-infrared imaging (NIR) for patients with endometrial cancer. METHODS: In this study, 200 patients with endometrial cancer underwent SLN assessments and were randomized to ISB + ICG (n = 180) or ISB alone (n = 20). Blue dye determinations were recorded for all 200 cases followed by NIR imaging of ICG for 180 randomized subjects...
March 6, 2017: Annals of Surgical Oncology
https://www.readbyqxmd.com/read/28265522/p2x7-antagonism-using-brilliant-blue-g-reduces-body-weight-loss-and-prolongs-survival-in-female-sod1-g93a-amyotrophic-lateral-sclerosis-mice
#11
Rachael Bartlett, Vanessa Sluyter, Debbie Watson, Ronald Sluyter, Justin J Yerbury
BACKGROUND: Amyotrophic lateral sclerosis (ALS) is a rapidly progressive neurodegenerative disease characterised by the accumulation of aggregated proteins, microglia activation and motor neuron loss. The mechanisms underlying neurodegeneration and disease progression in ALS are unknown, but the ATP-gated P2X7 receptor channel is implicated in this disease. Therefore, the current study aimed to examine P2X7 in the context of neurodegeneration, and investigate whether the P2X7 antagonist, Brilliant Blue G (BBG), could alter disease progression in a murine model of ALS...
2017: PeerJ
https://www.readbyqxmd.com/read/28264339/two-new-species-of-i-melanorivulus-i-cyprinodontiformes-cynolebiidae-from-rio-verde-drainage-upper-rio-paran%C3%A3-basin-brazil
#12
Matheus Vieira Volcan, Bruno Klotzel, Luis Esteban Krause Lanés
Two new species of the genus Melanorivulus are herein described from the middle Rio Verde drainage, upper Rio Paraná basin, Mato Grosso do Sul, Brazil. Both new species are members of the Melanorivulus pictus clade, diagnosed by having ventral process of angulo-articular vestigial and flanks intense greenish blue or greenish golden to purplish blue above anal fin base in males. Melanorivulus nigropunctatus, new species, from wetlands of a small drainage tributary of right side of the Rio Verde, differs from all other congeners by possessing black dots over the head and body in both sexes and pectoral fin orange with a dark grey margin in males...
February 21, 2017: Zootaxa
https://www.readbyqxmd.com/read/28261828/transformation-migration-and-outcome-of-residual-bodies-in-the-seminiferous-tubules-of-the-rat-testis
#13
C-Y Xiao, Y-Q Wang, J-H Li, G-C Tang, S-S Xiao
Experiments were performed to study the transformation, migration and outcome of residual bodies (RBs) in the seminiferous tubules of the rat testes. One part of the testes from adult Sprague-Dawley rats was used to generate paraffin sections to observe RBs and RB precursors through specific staining, and the other part of the testes was used to generate ultrathin sections to observe RBs under a transmission electron microscope. Deep blue particles of different sizes were observed in some seminiferous tubules through specific staining for RBs and RB precursors...
March 6, 2017: Andrologia
https://www.readbyqxmd.com/read/28260713/a-case-of-gastric-type-adenoma-with-chief-cell-and-parietal-cell-differentiation-surrounded-by-complete-intestinal-metaplasia
#14
Ryutaro Furukawa, Tsuneo Oyama, Akiko Takahashi, Nobukazu Yorimitsu, Tadakazu Shimoda, Hiroyoshi Ota, Satoshi Shiozawa
A man in his 70s received Helicobacter pylori eradication therapy after endoscopic submucosal dissection (ESD) of the stomach. A small, yellowish, protuberant lesion was later observed on the anterior wall of the lower body of the stomach on surveillance esophagogastroduodenoscopy. Narrow band imaging-magnified endoscopy showed an irregular pit and net-like vascular pattern, with the background mucosa having a light blue crest pattern. A biopsy was performed, which led to a diagnosis of adenoma with a gastric phenotype, so repeat ESD was performed...
2017: Nihon Shokakibyo Gakkai Zasshi, the Japanese Journal of Gastro-enterology
https://www.readbyqxmd.com/read/28254103/is-there-volume-transmission-along-extracellular-fluid-pathways-corresponding-to-the-acupuncture-meridians
#15
Weibo Zhang, Ze Wang, Shuyong Jia, Yuying Tian, Guangjun Wang, Hongyan Li, Kjell Fuxe
Volume transmission is a new major communication signaling via extracellular fluid (interstitial fluid) pathways. It was proposed by the current authors that such pathways can explain the meridian phenomena and acupuncture effects. To investigate whether meridian-like structures exist in fish body and operate via volume transmission in extracellular fluid pathways, we injected alcian blue (AB) under anesthesia into Gephyrocharax melanocheir, which has a translucent body. The migration of AB could be seen directly and was recorded by a digital camera...
January 2017: Journal of Acupuncture and Meridian Studies
https://www.readbyqxmd.com/read/28245737/hearing-disorders-in-cats
#16
George M Strain
Practical relevance: Auditory function is a sense that is central to life for cats - being important in situational awareness of potential predators, pursuit of prey, and for communication with conspecifics, humans and other species. Deafness in cats is most frequently the result of a genetic disorder, strongly associated with white fur and blue eyes, but may also result from acquired causes such as advancing age, ototoxic drugs, infection, environmental noise and physical trauma. Deafness can be sensorineural, where there is loss of cochlear hair cells, or conductive, where sound is muffled on its way to the inner ear...
March 2017: Journal of Feline Medicine and Surgery
https://www.readbyqxmd.com/read/28229215/sequence-analysis-and-expression-of-a-blue-light-photoreceptor-gene-slwc-1-from-the-cauliflower-mushroom-sparassis-latifolia
#17
Chi Yang, Lu Ma, Zhenghe Ying, Xiaoling Jiang, Yanquan Lin
Light is a necessary environmental factor for fruit body formation and development of the cauliflower mushroom Sparassis latifolia, a well-known edible and medicinal fungus. In this study, we firstly characterized the SP-C strain, which belonged to S. latifolia. And then we cloned and sequenced a photoreceptor gene (Slwc-1) from S. latifolia. The product of Slwc-1, SlWC-1 (872 aa residues) contained a coiled-coil region, a LOV domain, and two PAS domains. Phylogenetic tree result showed that SLWC-1 was most close to GfWC-1 from Grifola frondosa in edible and medicinal fungus...
April 2017: Current Microbiology
https://www.readbyqxmd.com/read/28229028/small-scale-spatial-variation-in-population-and-individual-level-reproductive-parameters-of-the-blue-legged-hermit-crab-clibanarius-tricolor
#18
J Antonio Baeza, Donald C Behringer
Management of the few regulated ornamental fisheries relies on inadequate information about the life history of the target species. Herein, we investigated the reproductive biology of the most heavily traded marine invertebrate in the western Atlantic; the blue-legged hermit crab Clibanarius tricolor. We report on density, individual-level, and population-level reproductive parameters in 14 populations spanning the Florida Keys. In C. tricolor, abundance, population-level, and individual-level reproductive parameters exhibited substantial small-scale spatial variation in the Florida Keys...
2017: PeerJ
https://www.readbyqxmd.com/read/28228168/luminescence-spectroscopical-properties-of-plagioclase-particles-from-the-hayabusa-sample-return-mission-an-implication-for-study-of-space-weathering-processes-in-the-asteroid-itokawa
#19
Arnold Gucsik, Tomoki Nakamura, Cornelia Jäger, Kiyotaka Ninagawa, Hirotsugu Nishido, Masahiro Kayama, Akira Tsuchiyama, Ulrich Ott, Ákos Kereszturi
We report a systematic spectroscopical investigation of three plagioclase particles (RB-QD04-0022, RA-QD02-0025-01, and RA-QD02-0025-02) returned by the Hayabusa spacecraft from the asteroid Itokawa, by means of scanning electron microscopy, cathodoluminescence microscopy/spectroscopy, and micro-Raman spectroscopy. The cathodoluminescence properties are used to evaluate the crystallization effects and the degree of space weathering processes, especially the shock-wave history of Itokawa. They provide new insights regarding spectral changes of asteroidal bodies due to space weathering processes...
February 2017: Microscopy and Microanalysis
https://www.readbyqxmd.com/read/28226573/a-preliminary-study-on-multi-wavelength-ppg-based-pulse-transit-time-detection-for-cuffless-blood-pressure-measurement
#20
Jing Liu, Yuan-Ting Zhang, Xiao-Rong Ding, Wen-Xuan Dai, Ni Zhao, Jing Liu, Yuan-Ting Zhang, Xiao-Rong Ding, Wen-Xuan Dai, Ni Zhao, Wen-Xuan Dai, Yuan-Ting Zhang, Xiao-Rong Ding, Ni Zhao, Jing Liu
Pulse transit time (PTT) has been widely studied as an index of blood pressure (BP) changes. In recent years, some prototypes of PTT-based wearable BP measurement devices have been developed, which can relieve users from the discomfort caused by the inflating cuff used in auscultatory and oscillometric BP measurement techniques. However, in the common practice for PTT detection, multi-site sensor implementation on human body is required, making it difficult for the integration of wearable devices. Since multi-wavelength (MW) photoplethysmogram (PPG) signals carry blood pulsation information of different blood vessels embedded in different skin depths, the time difference between different wavelength PPG signals collected at the same body site can be treated as a special PTT on a short length of blood vessels beneath the skin...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
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