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https://www.readbyqxmd.com/read/29160812/micro-droplet-detection-method-for-measuring-the-concentration-of-alkaline-phosphatase-labeled-nanoparticles-in-fluorescence-microscopy
#1
Rufeng Li, Yibei Wang, Hong Xu, Baowei Fei, Binjie Qin
This paper developed and evaluated a quantitative image analysis method to measure the concentration of the nanoparticles on which alkaline phosphatase (AP) was immobilized. These AP-labeled nanoparticles are widely used as signal markers for tagging biomolecules at nanometer and sub-nanometer scales. The AP-labeled nanoparticle concentration measurement can then be directly used to quantitatively analyze the biomolecular concentration. Micro-droplets are mono-dispersed micro-reactors that can be used to encapsulate and detect AP-labeled nanoparticles...
November 21, 2017: Sensors
https://www.readbyqxmd.com/read/29157745/differential-diagnosis-of-parkinsonian-syndromes-using-dopamine-transporter-and-perfusion-spect
#2
Shigetoshi Takaya, Nobukatsu Sawamoto, Tomohisa Okada, Gosuke Okubo, Sei Nishida, Kaori Togashi, Hidenao Fukuyama, Ryosuke Takahashi
OBJECTIVE: We aimed to assess whether a combined analysis of dopamine transporter (DAT)- and perfusion-SPECT images (or either) could: (1) distinguish atypical parkinsonian syndromes (APS) from Lewy body diseases (LBD; majority Parkinson disease [PD]), and (2) differentiate among APS subgroups (progressive supranuclear palsy [PSP], corticobasal syndrome [CBS], and multiple system atrophy [MSA]). METHODS: We recruited consecutive patients with neurodegenerative parkinsonian syndromes (LBD, n = 46; APS, n = 33)...
November 14, 2017: Parkinsonism & related Disorders
https://www.readbyqxmd.com/read/29156723/effects-of-pharmacological-gap-junction-and-sodium-channel-blockade-on-s1s2-restitution-properties-in-langendorff-perfused-mouse-hearts
#3
Gary Tse, Tong Liu, Guangping Li, Wendy Keung, Jie Ming Yeo, Yin Wah Fiona Chan, Bryan P Yan, Yat Sun Chan, Sunny Hei Wong, Ronald A Li, Jichao Zhao, William K K Wu, Wing Tak Wong
Gap junctions and sodium channels are the major molecular determinants of normal and abnormal electrical conduction through the myocardium, however, their exact contributions to arrhythmogenesis are unclear. We examined conduction and recovery properties of regular (S1) and extrasystolic (S2) action potentials (APs), S1S2 restitution and ventricular arrhythmogenicity using the gap junction and sodium channel inhibitor heptanol (2 mM) in Langendorff-perfused mouse hearts (n=10). Monophasic action potential recordings obtained during S1S2 pacing showed that heptanol increased the proportion of hearts showing inducible ventricular tachycardia (0/10 vs...
October 17, 2017: Oncotarget
https://www.readbyqxmd.com/read/29152278/late-diagnosis-of-systemic-lupus-erythematosus-and-antiphospholipid-syndrome-in-an-older-woman-with-psychosis-a-case-report-and-review-of-the-literature
#4
Pablo Rodrigo Montero-Olvera, Roberto Berebichez-Fridman, Lorena Velázquez-Álvarez, Juan Rogelio Ríos-Morales, Manuel Alejandro Rodríguez-Guiza
In older adults with first-time psychiatric manifestations, physical disorders such as systemic lupus erythematosus (SLE) and antiphospholipid syndrome (APS) must be considered, even in patients with cognitive dysfunction and/or dementia. Here, we describe the case of a 77-year-old woman with psychosis who was later diagnosed with SLE and APS.
November 2017: Clinical Case Reports
https://www.readbyqxmd.com/read/29150207/carotid-and-femoral-atherosclerosis-in-antiphospholipid-syndrome-equivalent-risk-with-diabetes-mellitus-in-a-case-control-study
#5
Evrydiki Kravvariti, George Konstantonis, Nikolas Tentolouris, Petros P Sfikakis, Maria G Tektonidou
BACKGROUND: Antiphospholipid syndrome (APS) may carry a worse prognosis for vascular complications when co-existing with subclinical atherosclerosis; however, the association between the two conditions remains ambiguous. METHODS: We evaluated ultrasonographic markers of subclinical atherosclerosis in carotid and femoral arteries of 86 patients with thrombotic APS [43 primary APS (PAPS), 43 systemic lupus erythematosus-associated APS (SLE/APS)], 86 patients with diabetes mellitus (DM) and 86 healthy controls, individually matched for age and gender, and investigated their associations with traditional and disease-related factors in APS...
October 23, 2017: Seminars in Arthritis and Rheumatism
https://www.readbyqxmd.com/read/29139375/kitty-litter-dermatitis-from-bromo-2-nitropropane-1-3-diol
#6
John W Sullenbarger, Brooke Hensley, Jeffrey B Travers
70-year-old white man presented with a 6-week history of an acute pruritic eruption in the axillary vaults, inguinal folds, and central lumbar area. Due to the severity of the pruritus, the patient was evaluated in the emergency department. He was treated with intramuscular triamcinolone, oral fluconazole, clobetasol cream, and miconazole powder, which provided only minimal relief. The patient had presented with brightly erythematous patches in the axillary vaults and inguinal folds with numerous erythematous, scaly, coalescing papules and plaques agminated on the lumbar region (Figure)...
2017: Skinmed
https://www.readbyqxmd.com/read/29136791/a-flow-injection-procedure-using-layered-double-hydroxide-for-on-line-pre-concentration-of-fluoride
#7
Diego P Rocha, Gabriel C Terra, Thaís S Nery, Jairo Tronto, Frederico G Pinto, Sidnei G Silva, Nívia M M Coelho
This work showed a flow system designed with solenoid valves for preconcentration of fluoride using SPADNS method in water samples. The analyte was preconcentrated in a mini-column coated with Layered Double Hydroxides (LDH) used as adsorbent. Then, the fluoride ions were eluted with 0.5molL(-1) sodium hydroxide and determined by spectrophotometry. The variables that affect the system such adsorbent mass, type of eluent, solutions flow rate, reagent concentration and pH effect were critically evaluated. Under optimized conditions, the detection limit, coefficient of variation, linear range and preconcentration factor were estimated at 15µgL(-1) (99...
February 1, 2018: Talanta
https://www.readbyqxmd.com/read/29135576/assisted-partner-notification-services-are-cost-effective-for-decreasing-hiv-burden-in-western-kenya-a-mathematical-modeling-analysis
#8
Monisha Sharma, Jennifer A Smith, Carey Farquhar, Roger Ying, Peter Cherutich, Matthew Golden, Beatrice Wamuti, David Bukusi, Hans Spiegel, Ruanne V Barnabas
BACKGROUND: Assisted partner services (aPS) or provider notification for sexual partners of persons diagnosed HIV-positive can increase HIV testing and linkage in sub-Saharan Africa (SSA) and is a high yield strategy to identify HIV-positive persons. However, its cost-effectiveness is not well-evaluated. METHODS: Using effectiveness and cost data from an aPS trial in Kenya, we parameterized an individual-based, dynamic HIV transmission model. We estimated costs for both a program scenario and a task-shifting scenario using community health workers to conduct the intervention...
November 10, 2017: AIDS
https://www.readbyqxmd.com/read/29135051/low-molecular-weight-heparin-and-aspirin-exacerbate-human-endometrial-endothelial-cell-responses-to-antiphospholipid-antibodies
#9
Zola Chihombori Quao, Mancy Tong, Elena Bryce, Seth Guller, Lawrence W Chamley, Vikki M Abrahams
PROBLEM: Women with antiphospholipid antibodies (aPL) are at risk for pregnancy complications despite treatment with low molecular weight heparin (LMWH) or aspirin (ASA). aPL recognizing beta2 glycoprotein I can target the uterine endothelium, however, little is known about its response to aPL. This study characterized the effect of aPL on human endometrial endothelial cells (HEECs), and the influence of LMWH and ASA. METHOD OF STUDY: HEECs were exposed to aPL or control IgG, with or without low-dose LMWH and ASA, alone or in combination...
November 14, 2017: American Journal of Reproductive Immunology: AJRI
https://www.readbyqxmd.com/read/29134567/abdominal-pain-in-patient-with-antiphospholipid-syndrome-the-role-of-mdct-angiography-on-visceral-blood-vessels
#10
Jovica Saponjski, Ljudmila Stojanovich, Jelena Saponjski, Milorad Mirilovic, Dusan Saponjski
Antiphospholipid syndrome (APS) is an autoimmune disease defined by accelerated atherosclerosis, arterial and venous thrombosis, fetal loss, and the presence of antiphospholipid antibodies (aPL) in the serum and which leads to the occurrence of various vascular events. Nonspecific abdominal pain can be one of the symptoms due to changes on visceral blood vessels. The goal of our work is to show the results we obtained in multidetector computed tomography (MDCT) angiography examination of visceral arteries, comparing patients with primary antiphospholipid syndrome (PAPS) and secondary antiphospholipid syndrome (SAPS) with control group...
November 13, 2017: Immunologic Research
https://www.readbyqxmd.com/read/29133204/investigating-phase-separation-in-amorphous-solid-dispersions-via-raman-mapping
#11
Christian Luebbert, Christian Klanke, Gabriele Sadowski
The bioavailability of poorly-water-soluble active pharmaceutical ingredients (APIs) can be significantly improved by so-called amorphous solid dispersions (ASDs). However, the long-term stability of ASDs might be impaired by API recrystallization and/or amorphous phase separation (APS). So far, no methods have been reported to quantify APS in ASDs. In this work, phase-separation kinetics as well as the compositions of the two amorphous phases evolving due to APS were quantitatively determined for the first time using confocal Raman spectroscopy...
November 11, 2017: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/29127365/the-primary-cilium-is-necessary-for-the-differentiation-and-the-maintenance-of-human-adipose-progenitors-into-myofibroblasts
#12
N Arrighi, K Lypovetska, C Moratal, S Giorgetti-Peraldi, C A Dechesne, C Dani, P Peraldi
The primary cilium is an organelle, present at the cell surface, with various biological functions. We, and others, have shown that it plays a role in the differentiation of adipose progenitors (APs) into adipocytes. APs can also differentiate into myofibroblasts when treated with TGF-β1. Several components of the TGF-β1 pathway are located within the cilium suggesting a function for this organelle in AP myofibrogenesis. We studied differentiation of APs into myofibroblasts in two human models: APs of the adipose tissue (aAPs) and APs resident in the skeletal muscles (mAPs)...
November 10, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29126718/vitamin-d-and-antiphospholipid-syndrome-a-retrospective-cohort-study-and-meta-analysis
#13
REVIEW
Leyre Riancho-Zarrabeitia, Maite Cubería, Pedro Muñoz, Marcos López-Hoyos, Silvia García-Canale, Mayte García-Unzueta, José L Hernández, Víctor M Martínez-Taboada
OBJECTIVES: (a) To determine serum 25-OH vitamin D (vitD) levels in primary antiphospholipid syndrome (APS) and to compare them with patients with positive antiphospholipid serology who do not meet clinical criteria for APS, and with healthy controls. (b) To analyze the association of vitD levels with both the clinical manifestations and the immunological profile of patients with primary APS. (c) To perform a meta-analysis evaluating potential differences in serum vitD levels between APS and controls as well as the frequency of vitD deficiency in APS patients...
October 12, 2017: Seminars in Arthritis and Rheumatism
https://www.readbyqxmd.com/read/29126060/selenium-treatment-differentially-affects-sulfur-metabolism-in-high-and-low-glucosinolate-producing-cultivars-of-broccoli-brassica-oleracea-l
#14
Marian J McKenzie, Ronan K Y Chen, Susanna Leung, Srishti Joshi, Paula E Rippon, Nigel I Joyce, Michael T McManus
The effect of selenium (Se) application on the sulfur (S)-rich glucosinolate (GSL)-containing plant, broccoli (Brassica oleracea L. var. italica) was examined with a view to producing germplasm with increased Se and GSL content for human health, and to understanding the influence of Se on the regulation of GSL production. Two cultivars differing in GSL content were compared. Increased Se application resulted in an increase in Se uptake in planta, but no significant change in total S or total GSL content in either cultivar...
October 31, 2017: Plant Physiology and Biochemistry: PPB
https://www.readbyqxmd.com/read/29125387/significado-de-psic%C3%A3-logas-os-de-atenci%C3%A3-n-primaria-de-salud-sobre-la-intervenci%C3%A3-n-psicosocial-de-grupo-en-el-tratamiento-de-la-depresi%C3%A3-n-en-chile
#15
Gonzalo Andrade, Adriana Espinoza
En Chile, el tratamiento de la depresión en salud pública promueve la realización de Intervenciones Psicosociales en Grupo (IPG) para todos los casos diagnosticados, no obstante, se observa una baja implementación de estas prestaciones. El presente artículo describe y caracteriza, desde el punto de vista de la disciplina psicológica, el significado de psicólogas/os que trabajan en consultorios de atención primaria de salud (APS) sobre las IPG en el tratamiento de la depresión. Se entrevistaron a ocho psicólogas/os de los distintos Servicios de Salud de la Región Metropolitana de Santiago...
November 1, 2017: Global Health Promotion
https://www.readbyqxmd.com/read/29124054/a-method-for-the-analysis-of-ap-foot-convexity-insights-into-smooth-muscle-biophysics
#16
Shailesh Appukuttan, Mithun Padmakumar, Keith L Brain, Rohit Manchanda
Action potential (AP) profiles vary based on the cell type, with cells of the same type typically producing APs with similar shapes. But in certain syncytial tissues, such as the smooth muscle of the urinary bladder wall, even a single cell is known to exhibit APs with diverse profiles. The origin of this diversity is not currently understood, but is often attributed to factors such as syncytial interactions and the spatial distribution of parasympathetic nerve terminals. Thus, the profile of an action potential is determined by the inherent properties of the cell and influenced by its biophysical environment...
2017: Frontiers in Bioengineering and Biotechnology
https://www.readbyqxmd.com/read/29123471/vglut2-trafficking-is-differentially-regulated-by-adaptor-proteins-ap-1-and-ap-3
#17
Haiyan Li, Magda S Santos, Chihyung K Park, Yuriy Dobry, Susan M Voglmaier
Release of the major excitatory neurotransmitter glutamate by synaptic vesicle exocytosis depends on glutamate loading into synaptic vesicles by vesicular glutamate transporters (VGLUTs). The two principal isoforms, VGLUT1 and 2, exhibit a complementary pattern of expression in adult brain that broadly distinguishes cortical (VGLUT1) and subcortical (VGLUT2) systems, and correlates with distinct physiological properties in synapses expressing these isoforms. Differential trafficking of VGLUT1 and 2 has been suggested to underlie their functional diversity...
2017: Frontiers in Cellular Neuroscience
https://www.readbyqxmd.com/read/29120877/antiphospholipid-antibody-syndrome-the-difficulties-of-diagnosis
#18
Kerry L Whitaker
Antiphospholipid antibody syndrome (APS) is an autoantibodymediated thrombophilic disorder that causes a hypercoagulable state and can lead to venous thromboembolism, stroke, multiple miscarriages, and other pregnancy complications with the presence of antiphospholipid antibodies. This article reviews screening, diagnosis, and management of APS with a focus on the prevention of long-term complications.
November 8, 2017: JAAPA: Official Journal of the American Academy of Physician Assistants
https://www.readbyqxmd.com/read/29111374/layer-by-layer-coating-of-nh2-silicate-polycarboxylic-acid-polymer-saturated-by-ni-2-onto-the-super-magnetic-nife2o4-nanoparticles-for-sensitive-and-bio-valuable-separation-of-his-tagged-proteins
#19
Seyede Zohreh Mirahmadi-Zare, Fatemeh Aboutalebi, Maryam Allafchian, Leila Pirjamali, Mohammad-Hossein Nasr-Esfahani
Magnetic nanoparticles NiFe2O4 was synthesized and covered in the silicate lattice of (3-Aminopropyl) triethoxysilane (APS) by the sol-gel process. Subsequently, the EDTA-dianhydride was attached to the amino surface of magnetic nanoparticles (MNPs) during the nucleophilic attack. This polycarboxylic layer trapped the high level of nickel ions for selective bonding to the His-tagged recombinant protein. The surface of MNPs was investigated by TEM, XRD, SEM (EDSA), VSM, BET, FT-IR and zeta potential analysis which characterized the size, chemical lattice, morphology, magnetic strength, specific surface area, functional groups and charge of the surface of nanoparticles...
October 28, 2017: Protein Expression and Purification
https://www.readbyqxmd.com/read/29111364/cd36-deficiency-suppresses-epileptic-seizures
#20
Fangshuo Zheng, Yong Yang, Shanshan Lu, Qin Yang, Yun Li, Xin Xu, Yanke Zhang, Feng Liu, Xin Tian, Xuefeng Wang
Cluster of differentiation 36 (CD36) belongs to the class B scavenger receptor family. CD36 is a glycoprotein found on the surface of various cell types and has been implicated in the mechanism of numerous central nervous system (CNS) diseases. However, the relationship between CD36 and epilepsy remains unknown. In this study, we aimed to detect the expression of CD36 in two different chronic epileptic mouse models and determine whether CD36 deficiency leads to suppressive neuronal hyperexcitability and decreased susceptibility of epileptic seizures...
October 27, 2017: Neuroscience
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