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https://www.readbyqxmd.com/read/28931960/schusteria-marina-sp-nov-acari-oribatida-selenoribatidae-an-intertidal-mite-from-caribbean-coasts-with-remarks-on-taxonomy-biogeography-and-ecology
#1
Tobias Pfingstl, Andrea Lienhard
Schusteria marina sp. nov. is a newly discovered intertidal mite species found on the Lesser Antillean Islands of Martinique and Grenada. It represents the first record of the genus Schusteria within the Caribbean area. Schusteria marina sp. nov. is very similar to the type species, S. littorea from Brazil, but can be distinguished by its smaller body size, a median sternal dark sclerotized small ridge on epimeron I and a few other less pronounced differences. Both species are closely related and form a Western Atlantic Schusteria clade, which is characterized by the possession of a pair of faint anterior epimeral ridges...
August 18, 2017: International Journal of Acarology
https://www.readbyqxmd.com/read/28931389/semi-automated-quantification-of-hard-exudates-in-colour-fundus-photographs-diagnosed-with-diabetic-retinopathy
#2
Abhilash Goud Marupally, Kiran Kumar Vupparaboina, Hari Kumar Peguda, Ashutosh Richhariya, Soumya Jana, Jay Chhablani
BACKGROUND: Hard exudates (HEs) are the classical sign of diabetic retinopathy (DR) which is one of the leading causes of blindness, especially in developing countries. Accordingly, disease screening involves examining HEs qualitatively using fundus camera. However, for monitoring the treatment response, quantification of HEs becomes crucial and hence clinicians now seek to measure the area of HEs in the digital colour fundus (CF) photographs. Against this backdrop, we proposed an algorithm to quantify HEs using CF images and compare with previously reported technique using ImageJ...
September 20, 2017: BMC Ophthalmology
https://www.readbyqxmd.com/read/28931192/markers-of-proliferation-and-cytokeratins-in-the-differential-diagnosis-of-jaw-cysts
#3
Nikola D Živković, Dragan S Mihailović, Miloš S Kostić, Ana S Cvetanović, Žaklina Ž Mijović, Maja V Milentijević, Tijana V Denčić
We conducted a retrospective study to analyze the histologic and immunohistochemical findings in three main types of odontogenic cyst. We studied 90 archived cystic jaw lesions: 30 dentigerous cysts, 30 keratocystic odontogenic tumors, and 30 radicular cysts. The cyst types were identified on the basis of clinical, radiologic, and histopathologic findings. Immunohistochemical analyses included staining with Ki-67, p53, epidermal growth factor receptor (EGFR), cytokeratin (CK) 8, CK14, CK17, and CK18. Cell immunopositivity was evaluated for the entire epithelium...
September 2017: Ear, Nose, & Throat Journal
https://www.readbyqxmd.com/read/28927549/improved-threshold-selection-for-the-determination-of-volume-of-distribution-of-nanoparticles-administered-by-convection-enhanced-delivery
#4
David Lei Chi, Eric Song, Alice Gaudin, W Mark Saltzman
Nanotechnology, in conjunction with convection-enhanced delivery (CED), has gained traction as a promising method to treat many debilitating neurological diseases, including gliomas. One of the key parameters to evaluate the effectiveness of delivery is the volume of distribution (Vd) of nanoparticles within the brain parenchyma. Measurements of Vd are commonly made using fluorescent reporter systems. However, reported analyses lack accurate and robust methods for determining Vd. Current methods face the problems of varying background intensities between images, high intensity aggregates that can shift intensity distributions, and faint residual backgrounds that can occur as artifacts of fluorescent imaging...
August 24, 2017: Computerized Medical Imaging and Graphics: the Official Journal of the Computerized Medical Imaging Society
https://www.readbyqxmd.com/read/28925704/ict-isomerization-induced-turn-on-fluorescence-probe-with-a-large-emission-shift-for-mercury-ion-application-in-combinational-molecular-logic
#5
Sushil Ranjan Bhatta, Bijan Mondal, Gonela Vijaykumar, Arunabha Thakur
A unique turn-on fluorescent device based on a ferrocene-aminonaphtholate derivative specific for Hg(2+) cation was developed. Upon binding with Hg(2+) ion, the probe shows a dramatic fluorescence enhancement (the fluorescence quantum yield increases 58-fold) along with a large red shift of 68 nm in the emission spectrum. The fluorescence enhancement with a red shift may be ascribed to the combinational effect of C═N isomerization and an extended intramolecular charge transfer (ICT) mechanism. The response was instantaneous with a detection limit of 2...
September 19, 2017: Inorganic Chemistry
https://www.readbyqxmd.com/read/28923570/-three-cases-of-scombroid-poisoning
#6
Y Harmelin, T Hubiche, M Pharaon, P Del Giudice
INTRODUCTION: Scombroid poisoning is a poorly known type of food poisoning due to the presence of histamine in spoiled fish of the Scombridae family. We report 3 cases of scombroid poisoning seen at the Fréjus-Saint-Raphaël hospital in the Var region. OBSERVATIONS: Within around thirty minutes of eating a meal containing tuna, three patients presented varied symptoms: malaise, itchy rash, headache, and for two of them, nausea. The diagnosis of scombroid poisoning was based on the circumstances in which the clinical signs appeared and on the signs themselves...
September 15, 2017: Annales de Dermatologie et de Vénéréologie
https://www.readbyqxmd.com/read/28923137/carbon-dioxide-physiological-training-at-nasa
#7
Jennifer Law, Millennia Young, David Alexander, Sara S Mason, Mary L Wear, Claudia M Méndez, David Stanley, Valerie Meyers Ryder, Mary Van Baalen
INTRODUCTION: Astronauts undergo CO2 exposure training to recognize their symptoms that can arise acutely both on the ground and in spaceflight. This article describes acute CO2 exposure training at NASA and examines the symptoms reported by astronauts during training. METHODS: In a controlled training environment, astronauts are exposed to up to 8% CO2 (60 mmHg) by a rebreathing apparatus. Symptoms are reported using a standard form. RESULTS: Symptom documentation forms between April 1994 and February 2012 were obtained for 130 astronauts...
October 1, 2017: Aerospace Medicine and Human Performance
https://www.readbyqxmd.com/read/28912033/dissecting-the-cd93-multimerin-2-interaction-involved-in-cell-adhesion-and-migration-of-the-activated-endothelium
#8
Federico Galvagni, Federica Nardi, Ottavia Spiga, Alfonso Trezza, Giulia Tarticchio, Rosanna Pellicani, Eva Andreuzzi, Elena Caldi, Paolo Toti, Gian Marco Tosi, Annalisa Santucci, Renato V Iozzo, Maurizio Mongiat, Maurizio Orlandini
The glycoprotein CD93 has recently been recognized to play an important role in the regulation of the angiogenic process. Moreover, CD93 is highly expressed in the endothelial cells of tumor blood vessel and faintly expressed in the non-proliferating endothelium. Much evidence suggests that CD93 mediates adhesion in the endothelium. Here we identify Multimerin 2 (MMRN2), a pan-endothelial extracellular matrix protein, as a specific ligand for CD93. We found that CD93 and MMRN2 are co-expressed in the blood vessels of various human tumors...
September 11, 2017: Matrix Biology: Journal of the International Society for Matrix Biology
https://www.readbyqxmd.com/read/28902738/false-positive-pancreatic-uptake-detected-on-68ga-psma-pet-ct-a-priority-changing-incidental-finding-while-assessing-the-need-for-a-prostate-biopsy
#9
Mehmet Onur Demirkol, Murat Can Kiremit, Omer Acar, Alan Alper Sag, Yersu Kapran
A 72-year-old man underwent Ga-PSMA PET/CT because of an elevated prostate-specific antigen level despite prior prostatectomy. Besides low-intensity prostatic PSMA reactivities, a faintly PSMA-positive lesion in the pancreatic corpus drew attention, which seemed suggestive of a primary pancreatic cancer on the subsequent MRI and therefore had to be excised. The final diagnosis was pT3 low-grade neuroendocrine tumor. PSMA-positive incidentalomas, detected on Ga-PSMA PET/CT, can reveal more clinically significant extraprostatic disorders...
September 11, 2017: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/28875375/germ-cell-line-during-the-seasonal-sexual-rest-of-clams-finding-niches-of-cells-for-gonad-renewal
#10
Liliana Milani, Andrea Pecci, Fabrizio Ghiselli, Marco Passamonti, Maurizio Lazzari, Valeria Franceschini, Maria Gabriella Maurizii
Reconstitution and renewal of tissues are key topics in developmental biology. In this brief work, we analyzed the wintry spent phase of the reproductive cycle in the Manila clam Ruditapes philippinarum (Bivalvia, Veneridae) in order to study the gonad rebuilding that in this species occurs at the beginning of the warmer months. We labeled VASA homolog protein-a germ cell marker-and compared the histological observations of the spent phase with those of the previously analyzed gametogenic phase. In R. philippinarum, during the reproductive season, most of the body mass is represented by sack-like structures (acini) full of developing gametes...
September 5, 2017: Histochemistry and Cell Biology
https://www.readbyqxmd.com/read/28863887/development-of-monoclonal-antibodies-against-the-human-3%C3%AE-hydroxysteroid-dehydrogenase-isomerase-isozymes
#11
Celso E Gomez-Sanchez, Mark Lewis, Kazutaka Nanba, William E Rainey, Maniselvan Kuppusamy, Elise P Gomez-Sanchez
The human 3β-hydroxysteroid dehydrogenase/isomerase (HSD3B) enzymes catalyze the conversion of 3β-hydroxy Δ5-6 steroids into 3-keto Δ4-5 steroids, which is required for the synthesis of the mature steroid hormones secreted by the adrenal and gonads. The human has 2 isozymes, the HSD3B1 that is traditionally located in placenta and extra-adrenal tissues and the HSD3B2 that is expressed in the adrenal and gonads. Mice with both cryptochrome 1 and 2 genes deletion were recently found to have salt-sensitive hypertension and hyperaldosteronism...
August 31, 2017: Steroids
https://www.readbyqxmd.com/read/28854528/combine-tv-l1-model-with-guided-image-filtering-for-wide-and-faint-ring-artifacts-correction-of-in-line-x-ray-phase-contrast-computed-tomography
#12
Dongjiang Ji, Gangrong Qu, Chunhong Hu, Yuqing Zhao, Xiaodong Chen
In practice, mis-calibrated detector pixels give rise to wide and faint ring artifacts in the reconstruction image of the In-line phase-contrast computed tomography (IL-PC-CT). Ring artifacts correction is essential in IL-PC-CT. In this study, a novel method of wide and faint ring artifacts correction was presented based on combining TV-L1 model with guided image filtering (GIF) in the reconstruction image domain. The new correction method includes two main steps namely, the GIF step and the TV-L1 step. To validate the performance of this method, simulation data and real experimental synchrotron data are provided...
August 24, 2017: Journal of X-ray Science and Technology
https://www.readbyqxmd.com/read/28854186/meloidogyne-aberrans-sp-nov-nematoda-meloidogynidae-a-new-root-knot-nematode-parasitizing-kiwifruit-in-china
#13
Ye Tao, Chunling Xu, Chunfen Yuan, Honghong Wang, Borong Lin, Kan Zhuo, Jinling Liao
High infection rates of roots of wild kiwifruit (Actinidia chinensis Planch) and soil infestation by a root-knot nematode were found in Anshun, GuiZhou Province, China. Morphology, esterase phenotype and molecular analyses confirmed that this nematode was different from previously described root-knot nematodes. In this report, the species is described, illustrated and named Meloidogyne aberrans sp. nov. The new species has a unique combination of characters. A prominent posterior protuberance, round and faint perineal pattern and a medium-length stylet (13...
2017: PloS One
https://www.readbyqxmd.com/read/28842424/gab2-mediates-hepatocellular-carcinogenesis-by-integrating-multiple-signaling-pathways
#14
Jianghong Cheng, Yanhong Zhong, Shuai Chen, Yan Sun, Lantang Huang, Yujia Kang, Baozhen Chen, Gang Chen, Fengli Wang, Yingpu Tian, Wenjie Liu, Gen-Sheng Feng, Zhongxian Lu
Our previous studies have found that Growth factor receptor-bound protein 2-associated binding protein 2 (Gab2)-a docking protein-governs the development of fatty liver disease. Here, we further demonstrate that Gab2 mediates hepatocarcinogenesis. Compared with a faint expression in para-carcinoma tissue, Gab2 was highly expressed in ∼60-70% of human hepatocellular carcinoma (HCC) specimens. Deletion of Gab2 dramatically suppressed diethylnitrosamine-induced HCC in mice. The oncogenic effects of Gab2 in HepG2 cells were promoted by Gab2 overexpression but were rescued by Gab2 knockdown...
August 21, 2017: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/28833782/population-transcriptomic-characterization-of-the-genetic-and-expression-variation-of-a-candidate-progenitor-of-miscanthus-energy-crops
#15
Juan Yan, Zhihong Song, Qin Xu, Lifang Kang, Caiyun Zhu, Shilai Xing, Wei Liu, Josef Greimler, Tobias Züst, Jianqiang Li, Tao Sang
The use of transcriptome data in the study of the population genetics of a species can capture faint signals of both genetic variation and expression variation, and can provide a broad picture of a species' genomic response to environmental conditions. In this study, we characterized the genetic and expression diversity of Miscanthus lutarioriparius by comparing more than 16,225 transcripts obtained from 78 individuals, belonging to 10 populations distributed across the species' entire geographic range. We only observed a low level of nucleotide diversity (π = 0...
August 22, 2017: Molecular Ecology
https://www.readbyqxmd.com/read/28828914/the-joint-facial-and-invasive-neck-trauma-j-faint-project-iraq-and-afghanistan-2011-2016
#16
Alexander Lanigan, Brentley Lindsey, Stephen Maturo, Joseph Brennan, Adrienne Laury
Objective Define the number and type of facial and penetrating neck injuries sustained in combat operations in Iraq and Afghanistan from 2011 to 2016. Compare recent injury trends to prior years of modern conflict. Study Design Case series with chart review. Setting Tertiary care hospital. Methods The Joint Theater Trauma Registry (JTTR) was queried for facial and neck injuries from Iraq and Afghanistan from June 2011 to May 2016. Injury patterns, severity, and patient demographics were analyzed and compared to previously published data from combat operations during January 2003 to May 2011...
August 1, 2017: Otolaryngology—Head and Neck Surgery
https://www.readbyqxmd.com/read/28827138/venom-phenotypes-of-the-rock-rattlesnake-crotalus-lepidus-and-the-ridge-nosed-rattlesnake-crotalus-willardi-from-m%C3%A3-xico-and-the-united-states
#17
Anthony J Saviola, Anthony J Gandara, Robert W Bryson, Stephen P Mackessy
Although the Mexican Highlands has the highest diversity of small-bodied rattlesnakes in the world, studies on the species found throughout this region have been relatively scarce. This has led to challenges with examining venom phenotypic characteristics, as well as species misidentifications and misclassifications. In the current study we investigated venom variation among four subspecies of Crotalus lepidus (C. l. klaluberi, C. l. lepidus, C. l. maculosus, C. l. morulus) and four subspecies of C. willardi (C...
August 19, 2017: Toxicon: Official Journal of the International Society on Toxinology
https://www.readbyqxmd.com/read/28825951/high-18fluor-dcfpyl-uptake-in-adrenal-adenomas
#18
Johannes Gerrit Karel Peper, Sandra Srbljin, Friso Martijn van der Zant, Remco Johannes Jacob Knol, Maurits Wondergem
Radioisotope-labeled prostate-specific membrane antigen (PSMA) tracers have been proven accurate for detection of prostate cancer localizations. Uptake of those tracers in other malignant and benign lesions has been reported, including faint accumulation of Ga-PSMA-HBED-CC in adrenal adenoma. A 77-year-old man with prostate carcinoma was scanned with F-DCFPyL, a promising F-labeled PSMA ligand, for prostate-specific antigen progression while on luteinizing hormone-releasing hormone agonist therapy. The PET/CT shows F-DCFPyL uptake in bilateral enlarged adrenals...
August 19, 2017: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/28816953/peritumoral-decreased-uptake-area-of-gadoxetic-acid-enhanced-magnetic-resonance-imaging-and-tumor-recurrence-after-surgical-resection-in-hepatocellular-carcinoma-a-strobe-compliant-article
#19
Seung Kak Shin, Yun Soo Kim, Young Sup Shim, Seung Joon Choi, So Hyun Park, Dong Hae Jung, Oh Sang Kwon, Duck Joo Choi, Ju Hyun Kim
Recently, it has been suggested that peritumoral decreased uptake area (PDUA) in the hepatobiliary phase (HBP) of gadoxetic acid (Gd-EOB-DTPA)-enhanced magnetic resonance imaging (MRI) was associated with vascular invasion in hepatocellular carcinoma (HCC). We aimed to investigate correlations between microvascular invasion and PDUA, and elucidate the predictability of PDUA for tumor recurrence after resection.We retrospectively analyzed clinicopathological and radiological data from 126 consecutive patients with single HCC ≤5 cm without macrovascular invasion who underwent preoperative Gd-EOB-DTPA-enhanced MRI and surgical resection...
August 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28804045/unusual-magnetic-resonance-imaging-findings-of-a-glioblastoma-arising-during-treatment-with-lenvatinib-for-thyroid-cancer
#20
Nobuhiko Arai, Hikaru Sasaki, Ryota Tamura, Kentarou Obara, Kazunari Yoshida
BACKGROUND: Glioblastoma (GBM) is radiologically characterized by magnetic resonance imaging (MRI) findings, such as ring enhancement with extensive perifocal edema and a butterfly appearance extending into the bilateral lobes. However, these characteristic findings could be changed by anti-angiogenic therapy, with decreased contrast enhancement and improved perifocal edema. Herein, we report a case of glioblastoma that arose during treatment with a tyrosine kinase inhibitor for another cancer...
August 10, 2017: World Neurosurgery
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