keyword
MENU ▼
Read by QxMD icon Read
search

Plasma light

keyword
https://www.readbyqxmd.com/read/28812775/polymorphic-light-eruption-and-il-1-family-members-any-difference-with-allergic-contact-dermatitis
#1
S Lembo, G Caiazzo, N Balato, G Monfrecola, V Patra, P Wolf, A Balato
Polymorphic light eruption (PLE) is described as a delayed-type hypersensitivity reaction (DTHR) toward a de novo light-induced antigen, yet to be identified. In effect, the inflammatory pathways of PLE and allergic contact dermatitis (ACD) share common patterns in terms of the mediators involved from the innate and adaptive immune system participating in the DTHR. As we have previously highlighted the role of interleukin (IL)-1 family members in ACD, we hypothesised that the same mediators could have similar functions in PLE...
August 16, 2017: Photochemical & Photobiological Sciences
https://www.readbyqxmd.com/read/28811766/prognostic-factors-determining-morbidity-and-mortality-in-organophosphate-poisoning
#2
Ayca Acikalin, Nezihat Rana Dişel, Selcuk Matyar, Ahmet Sebe, Zeynep Kekec, Yuksel Gokel, Emre Karakoc
OBJECTIVE: Our aim in this retrospective study was to determine the factors affecting poor prognosis and mortality of organophosphate (OP) poisoning by reviewing patient data. We also reviewed present knowledge to make conclusions on certain longstanding debates in light of the literature. METHODS: In this retrospective descriptive study, patients who were admitted to and hospitalized in the emergency department (ED) or intensive care unit (ICU) of a university hospital with the diagnosis of OP poisoning between December 2010 and December 2015 were evaluated...
May 2017: Pakistan Journal of Medical Sciences Quarterly
https://www.readbyqxmd.com/read/28808490/the-influence-of-intermittent-fasting-on-the-circadian-pattern-of-melatonin-while-controlling-for-caloric-intake-energy-expenditure-light-exposure-and-sleep-schedules-a-preliminary-report
#3
Aljohara S Almeneessier, Ahmed S Bahammam, Munir M Sharif, Salman A Bahammam, Samar Z Nashwan, Seithikurippu R Pandi Perumal, Daniel P Cardinali, Mohammad Alzoghaibi
AIMS: We hypothesized that if we control for food composition, caloric intake, light exposure, sleep schedule, and exercise, intermittent fasting would not influence the circadian pattern of melatonin. Therefore, we designed this study to assess the effect of intermittent fasting on the circadian pattern of melatonin. METHODS: Eight healthy volunteers with a mean age of 26.6 ± 4.9 years and body mass index of 23.7 ± 3.5 kg/m(2) reported to the Sleep Disorders Center (the laboratory) on four occasions: (1) adaptation, (2) 4 weeks before Ramadan while performing Islamic intermittent fasting for 1 week (fasting outside Ramadan [FOR]), (3) 1 week before Ramadan (nonfasting baseline [BL]), and (4) during the 2(nd) week of Ramadan while fasting (Ramadan)...
July 2017: Annals of Thoracic Medicine
https://www.readbyqxmd.com/read/28807981/delineation-of-the-timing-of-second-line-therapy-post-autologous-stem-cell-transplant-in-patients-with-al-amyloidosis
#4
Yi L Hwa, Rahma Warsame, Morie A Gertz, Francis K Buadi, Martha Q Lacy, Shaji K Kumar, David Dingli, Steve R Zeldenrust, Nelson Leung, Suzanne R Hayman, Prashant Kapoor, Wilson I Gonsalves, Taxiarchis V Kourelis, Stephen Russell, Ronald S Go, Miriam A Hobbs, Amie L Fonder, S Vincent Rajkumar, Angela Dispenzieri
Among patients with immunoglobulin light chain (AL) amyloidosis, there is little consensus on when reinstitution of chemotherapy should occur. We conducted a retrospective study to evaluate the patterns of relapse or progression (R/P) and the timing of re-initiating therapy among 235 patients initially treated with ASCT at Mayo Clinic. The median time from ASCT to second-line therapy was 24.3 months. At the time of restarting therapy, median dFLC was 9.9 mg/dL (42% of diagnosis value); 32% had a dFLC< 5mg/dL; and 63% met criteria for organ R/P...
August 14, 2017: Blood
https://www.readbyqxmd.com/read/28807479/multifactorial-analyses-revealed-optimal-aquaculture-modalities-improving-husbandry-fitness-without-clear-effect-on-stress-and-immune-status-of-pikeperch-sander-lucioperca
#5
Sébastien Baekelandt, Baptiste Redivo, Syaghalirwa N M Mandiki, Thibaut Bournonville, Alexis Houndji, Benoît Bernard, Najlae El Kertaoui, Mélodie Schmitz, Pascal Fontaine, Jean-Noël Gardeur, Yannick Ledoré, Patrick Kestemont
High mortality and impairment in growth rate during pikeperch (Sander lucioperca) ongrowing are among the major bottlenecks for its development in aquaculture. These failures may be related to high stress responsiveness since the rearing conditions are not yet optimized for this species. The objectives were to characterize the stress and immunological responses of pikeperch to major aquaculture modalities, and to identify the optimal aquaculture conditions for improving its welfare status. In a screening experiment, eight factors considered as relevant for the welfare of pikeperch were compared in two modalities using a fractional multifactorial design (2(8-4))...
August 11, 2017: General and Comparative Endocrinology
https://www.readbyqxmd.com/read/28805825/the-processing-and-heterostructuring-of-silk-with%C3%A2-light
#6
Mehra S Sidhu, Bhupesh Kumar, Kamal P Singh
Spider silk is a tough, elastic and lightweight biomaterial, although there is a lack of tools available for non-invasive processing of silk structures. Here we show that nonlinear multiphoton interactions of silk with few-cycle femtosecond pulses allow the processing and heterostructuring of the material in ambient air. Two qualitatively different responses, bulging by multiphoton absorption and plasma-assisted ablation, are observed for low- and high-peak intensities, respectively. Plasma ablation allows us to make localized nanocuts, microrods, nanotips and periodic patterns with minimal damage while preserving molecular structure...
August 14, 2017: Nature Materials
https://www.readbyqxmd.com/read/28805493/pathways-for-external-alkalinization-in-intact-and-in-microwounded-chara-cells-are-differentially-sensitive-to-wortmannin
#7
Alexander A Bulychev, Ilse Foissner
Proton flows across the plant cell membranes play a major role in electrogenesis and regulation of photosynthesis and ion balance. The profiles of external pH along the illuminated internodal cells of characean algae consist of alternating high- and low-pH zones that are spatially coordinated with the distribution of photosynthetic activity of chloroplasts underlying these zones. The results based on confocal laser scanning fluorescence microscopy, pH microsensors, and pulse-amplitude-modulated chlorophyll microfluorometry revealed that the coordination of H(+) transport and photosynthesis is disrupted by the two different environmental cues (low light and wounding) and by a chemical, wortmannin interfering with the inositol phospholipid metabolism...
August 14, 2017: Plant Signaling & Behavior
https://www.readbyqxmd.com/read/28803875/a-novel-plasma-membrane-anchored-protein-regulates-xylem-cell-wall-deposition-through-microtubule-dependent-lateral-inhibition-of-rho-gtpase-domains
#8
Yuki Sugiyama, Mayumi Wakazaki, Kiminori Toyooka, Hiroo Fukuda, Yoshihisa Oda
Spatial control of cell-wall deposition is essential for determining plant cell shape [1]. Rho-type GTPases, together with the cortical cytoskeleton, play central roles in regulating cell-wall patterning [2]. In metaxylem vessel cells, which are the major components of xylem tissues, active ROP11 Rho GTPases form oval plasma membrane domains that locally disrupt cortical microtubules, thereby directing the formation of oval pits in secondary cell walls [3-5]. However, the regulatory mechanism that determines the planar shape of active Rho of Plants (ROP) domains is still unknown...
August 7, 2017: Current Biology: CB
https://www.readbyqxmd.com/read/28801717/vitamin-b6-is-essential-for-serine-de-novo-biosynthesis
#9
Rúben J Ramos, Mia L Pras-Raves, Johan Gerrits, Maria van der Ham, Marcel Willemsen, Hubertus Prinsen, Boudewijn Burgering, Judith J Jans, Nanda M Verhoeven-Duif
Pyridoxal 5'-phosphate (PLP), the metabolically active form of vitamin B6, plays an essential role in brain metabolism as a cofactor in numerous enzyme reactions. PLP deficiency in brain, either genetic or acquired, results in severe drug-resistant seizures that respond to vitamin B6 supplementation. The pathogenesis of vitamin B6 deficiency is largely unknown. To shed more light on the metabolic consequences of vitamin B6 deficiency in brain, we performed untargeted metabolomics in vitamin B6-deprived Neuro-2a cells...
August 11, 2017: Journal of Inherited Metabolic Disease
https://www.readbyqxmd.com/read/28799738/structural-dependent-optical-properties-of-self-organized-bi2se3-nanostructures-from-nanocrystals-to-nanoflakes
#10
Shang-Dong Yang, Liao Yang, Yuxiang Zheng, Wen-Jie Zhou, Meng-Yu Gao, Songyou Wang, Rong-Jun Zhang, Liangyao Chen
Bismuth selenide (Bi2Se3), with a wide bulk band gap and single massless Dirac cone at the surface, is a promising three-dimensional topological insulator. Bi2Se3 possesses gapless surface states and an insulator-like bulk band gap as a new type of quantum matter. Different Bi2Se3 nanostructures were prepared using electron beam evaporation (EBE) with high production efficiency. The structural investigations by energy dispersive X-ray analysis (EDAX), scanning electron microscopy (SEM), and X-ray diffraction (XRD) revealed the sample stoichiometries and the structural transition mechanism from nanocrystals to nanoflakes...
August 11, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28798722/autonomic-neuropathy-and-albuminocytologic-dissociation-in-cerebrospinal-fluid-as-the-presenting-features-of-primary-amyloidosis-a-case-report
#11
Jingjing Li, Yi Li, Hongbing Chen, Shihui Xing, Huiyu Feng, Dawei Liu, Dilong Wang, Jinsheng Zeng, Yuhua Fan
OBJECTIVE: Primary amyloidosis is a disease with a poor prognosis and multi-organ involvement. Here, we report the clinical and pathological features of a patient with primary amyloidosis featuring autonomic neuropathy as the initial symptom and albuminocytologic dissociation in the cerebrospinal fluid (CSF). METHODS: The patient was a 60-year-old Chinese male with numbness, orthostatic hypotension, and gastrointestinal symptoms. For diagnosis, we performed an electromyogram (EMG), lumbar puncture, Bence Jones protein urine test, serum electrophoresis blood test, sural nerve and rectal membrane biopsies, transthyretin (TTR) gene sequencing, and bone marrow puncture...
2017: Frontiers in Neurology
https://www.readbyqxmd.com/read/28795553/-chronic-demyelinating-polyradiculoneuropathy-revealing-a-solitary-plasmacytoma-of-the-right-iliac-bone
#12
J Oumerzouk, A Bourazza
Solitary bone plasmacytoma (pso) is a rare tumor, made of malignant plasma cells observed in a single bone, and without systemic proliferation. We report the case of a 33 year-old man who was admitted with chronic demyelinating sensorimotor polyneuropathy. Immunoelectrophoresis with immunofixation of serum proteins showed a monoclonal peak igg with lambda light chain and the workup was in favour of right hipbone secreting solitary plasmacytoma. The patient was treated with radiotherapy and steroids, and the evolution has been marked by a partial recovery of the motor deficit...
July 2017: Revue Médicale de Liège
https://www.readbyqxmd.com/read/28794264/liquid-phase-electron-microscopy-of-molecular-drug-response-in-breast-cancer-cells-reveals-irresponsive-cell-subpopulations-related-to-lack-of-her2-homodimers
#13
Diana B Peckys, Ulrike Korf, Stefan Wiemann, Niels de Jonge
The development of drug resistance in cancer poses a major clinical problem. An example is human epidermal growth factor receptor 2 (HER2) overexpressing breast cancer often treated with anti-HER2 antibody therapies, such as trastuzumab. Since drug resistance is rooted mainly in tumor cell heterogeneity, we examined the drug effect in different subpopulations of SKBR3 breast cancer cells, and compared the results with a drug resistant cell line, HCC1954. Correlative light microscopy and liquid-phase scanning transmission electron microscopy (STEM) were used to quantitatively analyze HER2 responses upon drug binding, whereby many tens of whole cells were imaged...
August 9, 2017: Molecular Biology of the Cell
https://www.readbyqxmd.com/read/28794132/an-essential-role-of-high-molecular-weight-kininogen-in-endotoxemia
#14
Aizhen Yang, Zhanli Xie, Bo Wang, Robert W Colman, Jihong Dai, Yi Wu
In this study, we show that mice lacking high-molecular-weight kininogen (HK) were resistant to lipopolysaccharide (LPS)-induced mortality and had significantly reduced circulating LPS levels. Replenishment of HK-deficient mice with human HK recovered the LPS levels and rendered the mice susceptible to LPS-induced mortality. Binding of HK to LPS occurred through the O-polysaccharide/core oligosaccharide, consistent with the ability to bind LPS from K. pneumoniae, P. aeruginosa, S. minnesota, and different E...
August 9, 2017: Journal of Experimental Medicine
https://www.readbyqxmd.com/read/28790338/statistical-analysis-of-mutant-allele-frequency-level-of-circulating-cell-free-dna-and-blood-cells-in-healthy-individuals
#15
Ligang Xia, Zhoufang Li, Bo Zhou, Geng Tian, Lidong Zeng, Hongyu Dai, Xiaohua Li, Chaoyu Liu, Shixin Lu, Feiyue Xu, Xiaonian Tu, Fang Deng, Yuancai Xie, Weiren Huang, Jiankui He
Cell-free DNA (cfDNA) in plasma has emerged as a potential important biomarker in clinical diagnostics, particularly in cancer. However, somatic mutations are also commonly found in healthy individuals, which interfere with the effectiveness for cancer diagnostics. This study examined the background somatic mutations in white blood cells (WBC) and cfDNA in healthy controls based on sequencing data from 821 non-cancer individuals and several cancer samples with the aim of understanding the patterns of mutations detected in cfDNA...
August 8, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28790098/orbital-multiple-myeloma-a-diagnostic-challenge
#16
Evelyn Tai, See Khim Sim, Juhara Haron, Wan-Hazabbah Wan Hitam
Orbital involvement in multiple myeloma is unusual. We describe the case of an 85-year-old woman who presented with right eye proptosis, reduced visual acuity and diplopia. Computed tomography showed a lobulated, enhancing soft tissue mass arising from the right greater wing of the sphenoid with intraconal, lacrimal gland and ocular muscle involvement. Histopathology revealed predominantly atypical plasma cells in a background of reactive lymphocytes, with monoclonality towards kappa light chain protein, suggestive of multiple myeloma...
August 7, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28772712/graphene-oxide-a-perfect-material-for-spatial-light-modulation-based-on-plasma-channels
#17
Chao Tan, Xinghua Wu, Qinkai Wang, Pinghua Tang, Xiaohui Shi, Shiping Zhan, Zaifang Xi, Xiquan Fu
The graphene oxide (GO) is successfully prepared from a purified natural graphite through a pressurized oxidation method. We experimentally demonstrate that GO as an optical media can be used for spatial light modulation based on plasma channels induced by femtosecond pulses. The modulated beam exhibits good propagation properties in free space. It is easy to realize the spatial modulation on the probe beam at a high concentration of GO dispersion solutions, high power and smaller pulse width of the pump beam...
March 28, 2017: Materials
https://www.readbyqxmd.com/read/28770228/mmp-2-mmp-9-and-timp-4-and-response-to-aspirin-in-diabetic-and-nondiabetic-patients-with-stable-coronary-artery-disease-a-pilot-study
#18
Wiktor Kuliczkowski, Marek Radomski, Mariusz Gąsior, Joanna Urbaniak, Jacek Kaczmarski, Andrzej Mysiak, Marta Negrusz-Kawecka, Iwona Bil-Lula
BACKGROUND: High on-aspirin treatment platelets reactivity (HPR) is a significant problem in long-term secondary prevention of cardiovascular events. We hypothesize that imbalance between platelets MMPs/TIMPs results in cardiovascular disorders. We also explored whether chronically elevated blood glucose affects MMP-2/TIMP-4 release from platelets. MATERIALS AND METHODS: Seventy patients with stable coronary artery disease, supplemented with aspirin, participated in this pilot study...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28767394/disease-spectrum-of-abnormal-serum-free-light-chain-ratio-and-its-diagnostic-significance
#19
Bin Xu, Yi Tang, Jianfeng Zhou, Peiling Zhang, Huijun Li
OBJECTIVE: To analyze the spectrum of abnormal serum free light chain ratio (sFLC κ/λ ratio), and to redefine the range of sFLC κ/λ ratio, so as to achieve hierarchical diagnosis of diseases with abnormal sFLC κ/λ ratio, resulting in the increased sensitivity and specificity in the diagnosis of monoclonal plasma diseases. METHODS: Enrolled 1,340 patients with abnormal sFLC κ/λ ratio (<0.26 or >1.65) were grouped: (1) group A: malignant plasma diseases; (2) group B: monoclonal gammopathies of undetermined significance (MGUS); (3) group C: reactive plasma diseases...
July 19, 2017: Oncotarget
https://www.readbyqxmd.com/read/28766344/cell-shaping-micropatterns-for-quantitative-super-resolution-microscopy-imaging-of-membrane-mechanosensing-proteins
#20
Anthony Fernandez, Markville Bautista, Ramunas Stanciauskas, Taerin Chung, Fabien Pinaud
Patterning cells on microcontact-printed substrates is a powerful approach to control cell morphology and introduce specific mechanical cues on a cell's molecular organization. Although global changes in cellular architectures caused by micropatterns can easily be probed with diffraction-limited optical microscopy, studying molecular reorganizations at the nanoscale demands micropatterned substrates that accommodate the optical requirements of single molecule microscopy techniques. Here, we developed a simple micropatterning strategy that provides control of cellular architectures and is optimized for nanometer accuracy single molecule tracking and three-dimensional super-resolution imaging of plasma and nuclear membrane proteins in cells...
August 9, 2017: ACS Applied Materials & Interfaces
keyword
keyword
57244
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"