keyword
MENU ▼
Read by QxMD icon Read
search

biphasic

keyword
https://www.readbyqxmd.com/read/29346835/two-citrate-transporters-coordinately-regulate-citrate-secretion-from-rice-bean-root-tip-under-aluminum-stress
#1
Mei Ya Liu, He Qiang Lou, Wei Wei Chen, Miguel A Piñeros, Jia Meng Xu, Wei Fan, Leon V Kochian, Shao Jian Zheng, Jian Li Yang
Al-induced organic acid secretion from the root apex is an important Al resistance mechanism. However, it remains unclear how plants fine-tune root organic acid secretion which can contribute significantly to the loss of fixed carbon from the plant. Here, we demonstrate that Al-induced citrate secretion from the rice bean root apex is biphasic, consisting of an early phase with low secretion and a later phase of large citrate secretion. We isolated and characterized VuMATE2 as a possible second citrate transporter in rice bean functioning in tandem with VuMATE1, which we previously identified...
January 18, 2018: Plant, Cell & Environment
https://www.readbyqxmd.com/read/29346102/impedance-measures-during-in-vitro-cochlear-implantation-predict-array-positioning
#2
Christopher Kenneth Giardina, Elliot Samuel Krause, Kanthaiah Koka, Douglas Carl Fitzpatrick
OBJECTIVE: Improper electrode placement during cochlear implant (CI) insertion can adversely affect speech perception outcomes. However, the intraoperative methods to determine positioning are limited. Because measures of electrode impedance can be made quickly, the goal of this study was to assess the relationship between CI impedance and proximity to adjacent structures. METHODS: An Advanced Bionics CI array was inserted into a clear, plastic cochlea one electrode contact at a time in a saline bath (nine trials)...
February 2018: IEEE Transactions on Bio-medical Engineering
https://www.readbyqxmd.com/read/29344792/post-conditioning-hormesis-creates-a-subtraction-to-background-disease-process-biological-aging-and-environmental-risk-assessment-implications
#3
REVIEW
Edward J Calabrese
The interaction of background disease processes with environmental induced diseases has long been an issue of considerable interest and debate with respect to its impact on risk assessment. Whether and to what extent these processes should be considered independent or additive to background has been the principal focus of debate. The concept of hormesis, a biphasic dose response characterized by a low dose stimulation and a high dose inhibition, as framed within the context of post-conditioning, reveal the occurrence of a third type of "background" possibility, that of "subtraction to background"...
January 17, 2018: Journal of Cell Communication and Signaling
https://www.readbyqxmd.com/read/29343973/a-patient-with-classic-biphasic-pulmonary-blastoma-harboring-cd74-ros1-fusion-responds-to-crizotinib
#4
Zhaoting Meng, Peng Chen, Fenglin Zang, Ying Liu, Xiaoyan Xu, Yudong Su, Jinliang Chen, Li Lin, Lu Zhang, Tengfei Zhang
Pulmonary blastoma (PB) is a rare aggressive lung malignancy with a poor prognosis. Surgical resection is the treatment of choice for localized disease, and there are no standard treatment guidelines for metastatic PB. Due to its rareness, its molecular profile has not been elucidated. We present the first case of classic biphasic pulmonary blastoma (CBPB) with CD74-ROS1 rearrangement in a 44-year-old Asian female with stage IV disease diagnosed using capture-based ultra-deep targeted sequencing. It has been reported that ROS1 rearranged lung adenocarcinoma and squamous cell carcinoma are sensitive to crizotinib, an ALK/MET/ ROS1 multitargeted tyrosine kinase inhibitor...
2018: OncoTargets and Therapy
https://www.readbyqxmd.com/read/29343600/rapid-phenotypic-evolution-following-shifts-in-life-cycle-complexity
#5
Ronald M Bonett, John G Phillips, Nicholus M Ledbetter, Samuel D Martin, Luke Lehman
Life cycle strategies have evolved extensively throughout the history of metazoans. The expression of disparate life stages within a single ontogeny can present conflicts to trait evolution, and therefore may have played a major role in shaping metazoan forms. However, few studies have examined the consequences of adding or subtracting life stages on patterns of trait evolution. By analysing trait evolution in a clade of closely related salamander lineages we show that shifts in the number of life cycle stages are associated with rapid phenotypic evolution...
January 31, 2018: Proceedings. Biological Sciences
https://www.readbyqxmd.com/read/29342030/mesenchymal-chondrosarcoma-of-the-lacrimal-gland
#6
Hayyam Kiratli, Yağmur Deniz, Berrin Büyükeren, Gökhan Gedikoğlu
A 23-year-old woman presented with right-sided painless proptosis that developed in 12 months. MRI studies demonstrated a well-delineated tumorous enlargement of the right lacrimal gland with homogenous signal intensity and compressing the globe. The tumor was removed totally and in 1 piece with the tentative diagnosis of a pleomorphic adenoma. Pathologic examination revealed biphasic neoplastic elements, which were composed of the cartilaginous matrix and small round cell component. Immunohistopathological examination showed positive CD99 staining and negative reaction to S100, panCK, and CD15...
January 16, 2018: Ophthalmic Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/29341232/histological-features-and-outcome-of-inverted-type-a-melanocytic-nevi
#7
Soheil S Dadras, Jun Lu, Artur Zembowicz, Thomas J Flotte, Martin C Mihm
The presence of enlarged epithelioid/spindled nests located deep in the reticular dermis of a biphasic melanocytic neoplasm can mimic melanoma arising in a preexisting nevus, causing over-interpretation of malignancy. We aimed to define the clinicopathologic significance of epithelioid/spindled nests in melanocytic nevi. Retrospectively using clinical and histologic information, we characterized 121 patients with a single lesion showing epithelioid/spindled melanocytes in the reticular dermis or subcutaneous fat, surrounded by melanophages, sometimes blending in with the adnexa...
January 17, 2018: Journal of Cutaneous Pathology
https://www.readbyqxmd.com/read/29339003/direct-recovery-of-bacillus-subtilis-xylanase-from-fermentation-broth-with-an-alcohol-salt-aqueous-biphasic-system
#8
Hui Suan Ng, Cindy Xin Yi Chai, Yin Hui Chow, Wai Leng Carmen Loh, Hip Seng Yim, Joo Shun Tan, John Chi-Wei Lan
Xylanase enzyme degrades linear polysaccharide β-1,4 xylan and the hemicellulose of the plant cell wall. There is a growing demand in finding a cost-effective alternative for industrial scale production of xylanase with high purity for pharmaceutical applications. In this study, an alcohol/salt aqueous biphasic system (ABS) was adopted to recover xylanase from the Bacillus subtilis fermentation broth. The effects of several ABS parameters such as types and concentrations of alcohols and salts (i.e., sulphate, phosphate, and citrate), amount of crude loading and pH of the system on the recovery of xylanase were investigated...
January 12, 2018: Journal of Bioscience and Bioengineering
https://www.readbyqxmd.com/read/29337230/cholesterol-modulates-the-liposome-membrane-fluidity-and-permeability-for-a-hydrophilic-molecule
#9
Samar Kaddah, Nathalie Khreich, Fouad Kaddah, Catherine Charcosset, Hélène Greige-Gerges
The effect of cholesterol (CHOL) content on the permeability and fluidity of dipalmitoylphosphatidylcholine (DPPC) liposome membrane was investigated. Liposomes encapsulating sulforhodamine B (SRB), a fluorescent dye, were prepared by reverse phase evaporation technique (REV) at various DPPC:CHOL molar ratios (from 100:0 to 100:100). The release kinetics of SRB was studied during 48 h in buffer (pH 7.4) containing NaCl at 37 °C. The DPPC:CHOL formulations were also characterized for their size, polydispersity index and morphology...
January 11, 2018: Food and Chemical Toxicology
https://www.readbyqxmd.com/read/29335585/robust-fabrication-of-thin-film-polyamide-tio2-nanocomposite-membranes-with-enhanced-thermal-stability-and-anti-biofouling-propensity
#10
Behnam Khorshidi, Ishita Biswas, Tanushree Ghosh, Thomas Thundat, Mohtada Sadrzadeh
The development of nano-enabled composite materials has led to a paradigm shift in the manufacture of high-performance nanocomposite membranes with enhanced permeation, thermo-mechanical, and antibacterial properties. The major challenges to the successful incorporation of nanoparticles (NPs) to polymer films are the severe aggregation of the NPs and the weak compatibility of NPs with polymers. These two phenomena lead to the formation of non-selective voids at the interface of the polymer and NPs, which adversely affect the separation performance of the membrane...
January 15, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29335516/an-evaluation-of-the-effect-of-pulse-shape-on-grey-and-white-matter-stimulation-in-the-rat-brain
#11
Marjolijn Deprez, Kelly Luyck, Laura Luyten, Tim Tambuyzer, Bart Nuttin, Myles Mc Laughlin
Despite the current success of neuromodulation, standard biphasic, rectangular pulse shapes may not be optimal to achieve symptom alleviation. Here, we compared stimulation efficiency (in terms of charge) between complex and standard pulses in two areas of the rat brain. In motor cortex, Gaussian and interphase gap stimulation (IPG) increased stimulation efficiency in terms of charge per phase compared with a standard pulse. Moreover, IPG stimulation of the deep mesencephalic reticular formation in freely moving rats was more efficient compared to a standard pulse...
January 15, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29334671/glucosamine-promotes-osteoblast-proliferation-by-modulating-autophagy-via-the-mammalian-target-of-rapamycin-pathway
#12
Chen Lv, Lu Wang, Xiongbai Zhu, Wenjun Lin, Xin Chen, Zhengxiang Huang, Lintuo Huang, Shengwu Yang
Glucosamine is effective in the treatment of osteoarthritis; however, its effect on osteoporosis remains unclear. Decreased activity of osteoblasts is the main cause of osteoporosis. Here, we examined the effects of glucosamine on osteoblasts. The potential underlying mechanisms were explored. The results showed that glucosamine had a biphasic effect on the viability of hFOB1.19 osteoblasts. At low concentrations (<0.6 mM), glucosamine induced hFOB1.19 cell proliferation, whereas at high concentrations (>0...
January 12, 2018: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29333324/ridge-preservation-using-basic-fibroblast-growth-factor-2-and-collagenated-biphasic-calcium-phosphate-in-beagle-dogs
#13
Byungjin Sohn, Minkyoon Hwang, Sungtae Kim, Hyeong-Il Kim, Young Ku
Purpose: The aim of this study was to evaluate volumetric and histologic changes in edentulous alveolar ridge areas after ridge preservation using basic fibroblast growth factor-2 (bFGF-2) in combination with collagenated biphasic calcium phosphate (BCP). Methods: The experiments were performed in 6 adult male beagle dogs. The following 3 groups were created: 1) ridge preservation with bFGF-2 and collagenated BCP (experimental group), 2) ridge preservation with collagenated BCP (positive control group), and 3) a negative control group in which no ridge preservation procedure was performed...
December 2017: Journal of Periodontal & Implant Science
https://www.readbyqxmd.com/read/29332027/phyllodes-tumors-of-the-breast-clinicopathological-analysis-of-106-cases-from-a-single-institution
#14
Boubacar Efared
BACKGROUND: Phyllodes tumors (PT) are uncommon biphasic tumors, accounting for less than 1% of all breast primary neoplasms. They form a wide variety of tumors ranging from benign to malignant. Several histological features are used to grade PT into 3 categories: benign (grade I), borderline (grade II) and malignant (grade III) tumors. The aim of our study was to analyse histolopathological, radiological and clinical features of PT from an experience of a single center. METHODS: It was a retrospective study including 106 patients diagnosed with phyllodes tumors on surgical specimens at the department of pathology, of Hassan II university hospital (Fez, Morocco), from 2009 to 2016...
January 10, 2018: Breast Disease
https://www.readbyqxmd.com/read/29331644/ozone-exposure-induces-respiratory-barrier-biphasic-injury-and-inflammation-controlled-by-interleukin-33
#15
Chloé Michaudel, Claire Mackowiak, Isabelle Maillet, Louis Fauconnier, Cezmi Akdis, Milena Sokolowska, Anita Dreher, Hern-Tze Tina Tan, Valérie F Quesniaux, Bernhard Ryffel, Dieudonnée Togbe
BACKGROUND: IL-33 plays critical role in the regulation of tissue homeostasis, injury and repair. Whether IL-33 regulates neutrophil recruitment and function independently of airways hyperresponsiveness (AHR) in ozone induced lung injury and inflammation is unclear. OBJECTIVE: To examine the role of IL-33/ST2 axis in lung inflammation upon acute ozone exposure in mice. METHODS: ST2 and IL-33 deficient mice, IL-33-citrine reporter and C57BL/6 (WT) mice underwent a single ozone exposure (1 ppm for 1h) in all studies...
January 10, 2018: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/29331041/effect-of-low-level-laser-therapy-on-the-healing-of-sites-grafted-with-coagulum-deproteinized-bovine-bone-and-biphasic-ceramic-made-of-hydroxyapatite-and-%C3%AE-tricalcium-phosphate-in-vivo-study-in-rats
#16
Guilherme J P L de Oliveira, Maurício A T Aroni, Marcell C Medeiros, Elcio Marcantonio, Rosemary A C Marcantonio
OBJECTIVE: The aim of this study was to evaluate the effect of low-level laser therapy (LLLT) on the healing of biomaterial graft areas (i.e., coagulum, deproteinized bovine bone, and biphasic ceramics comprising hydroxyapatite and β-tricalcium phosphate). MATERIAL AND METHODS: Ninety rats were divided into two groups according to laser irradiation use (λ 808 nm, 100 mW, φ ∼600 μm, seven sessions with 28 J of irradiation dose in total): a laser group and a control group...
January 13, 2018: Lasers in Surgery and Medicine
https://www.readbyqxmd.com/read/29330867/preferential-cholinergic-excitation-of-corticopontine-neurons
#17
Arielle L Baker, Ryan J O'Toole, Allan T Gulledge
Pyramidal neurons in layer 5 of the neocortex comprise two broad classes of projection neurons: corticofugal neurons, including corticopontine (CPn) neurons, and intratelencephalic neurons, including commissural/callosal (COM) neurons. These non-overlapping neuron subpopulations represent discrete cortical output channels contributing to perception, decision making, and behaviour. CPn and COM neurons have distinct morphological and physiological characteristics, and divergent responses to modulatory transmitters such as serotonin and acetylcholine (ACh)...
January 12, 2018: Journal of Physiology
https://www.readbyqxmd.com/read/29325251/-extrapleural-solitary-fibrous-tumor-with-uncommon-histology-a-clinicopathologic-analysis-of-7-cases
#18
M Zhao, Z R Yang, Y B Wang, Y Chen, G W Qi, Y J Yan, W J Xu, G Q Ru, X L He
Objective: To investigate the clinicopathologic characteristics, immunophenotypes, and differential diagnostic features of extra-pleural solitary fibrous tumor (SFT) with uncommon histology. Methods: Seven cases of extra-pleural SFT with uncommon histology were collected during January 2015 and December 2016 in Zhejiang Provincal People's Hospital; the clinical and radiologic features, histomorphology, immunophenotype and prognosis were analyzed. EnVision method was used for immunohistochemical staining of STAT6, CD34 and other differential diagnosis associated markers...
January 8, 2018: Zhonghua Bing Li Xue za Zhi Chinese Journal of Pathology
https://www.readbyqxmd.com/read/29325250/-myofibroma-myofibromatosis-a-clinicopathologic-analysis-of-9-cases
#19
Y Fu, W Y Guan, H Y Wu, H Y Wu, Z W Fan, Q Ye, F Q Meng
Objective: To investigate the clinical and histological features, diagnosis and differential diagnosis of myofibroma/myofibromatosis. Methods: The clinical data and pathology features of nine cases of myofibroma/myofibromatosis were collected from August 2011 to November 2016 in Affiliated Drum Tower Hospital, Nanjing University Medical School and Children's Hospital of Nanjing Medical University. Immunohistochemistry(IHC), PDGFRB molecular analysis and ETV6-NTRK3 gene fusion were performed and relevant literature reviewed...
January 8, 2018: Zhonghua Bing Li Xue za Zhi Chinese Journal of Pathology
https://www.readbyqxmd.com/read/29324235/a-biphasic-effect-of-cross-modal-priming-on-visual-shape-recognition
#20
Sze Chai Kwok, Carlo Fantoni, Laura Tamburini, Lei Wang, Walter Gerbino
We used a cross-modal priming paradigm to evoke a biphasic effect in visual short-term memory. Participants were required to match the memorandum (a visual shape, either spiky or curvy) to a delayed probe (a shape belonging to the same category). In two-thirds of trials the sequence of shapes was accompanied by a task-irrelevant sound (either tzk or upo, cross-modally correspondent to spiky and curvy shape categories, respectively). The biphasic effect occurred when a congruent vs. incongruent sound was presented 200ms after the memorandum, while it did not occur when the sound was presented 200ms before or simultaneously with it...
January 8, 2018: Acta Psychologica
keyword
keyword
68778
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"