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https://www.readbyqxmd.com/read/27922207/stimuli-responsive-dna-functionalized-metal-organic-frameworks-mofs
#1
Jason S Kahn, Lina Freage, Natalie Enkin, Miguel Angel Aleman Garcia, Itamar Willner
The synthesis of nucleic acid-functionalized metal-organic frameworks (MOFs) is described. The metal-organic frameworks are loaded with a dye being locked in the structures by means of stimuli-responsive nucleic acid caps. The pH and K(+) -ion-triggered release, and switchable release, are demonstrated.
December 6, 2016: Advanced Materials
https://www.readbyqxmd.com/read/27922126/viral-and-bacterial-co-infection-in-severe-pneumonia-triggers-innate-immune-responses-and-specifically-enhances-ip-10-a-translational-study
#2
Jonathan Hoffmann, Daniela Machado, Olivier Terrier, Stephane Pouzol, Mélina Messaoudi, Wilma Basualdo, Emilio E Espínola, Rosa M Guillen, Manuel Rosa-Calatrava, Valentina Picot, Thomas Bénet, Hubert Endtz, Graciela Russomando, Gláucia Paranhos-Baccalà
Mixed viral and bacterial infections are widely described in community-acquired pneumonia; however, the clinical implications of co-infection on the associated immunopathology remain poorly studied. In this study, microRNA, mRNA and cytokine/chemokine secretion profiling were investigated for human monocyte-derived macrophages infected in-vitro with Influenza virus A/H1N1 and/or Streptococcus pneumoniae. We observed that the in-vitro co-infection synergistically increased interferon-γ-induced protein-10 (CXCL10, IP-10) expression compared to the singly-infected cells conditions...
December 6, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27922112/plasma-cathepsin-d-correlates-with-histological-classifications-of-fatty-liver-disease-in-adults-and-responds-to-intervention
#3
Sofie M A Walenbergh, Tom Houben, Sander S Rensen, Veerle Bieghs, Tim Hendrikx, Patrick J van Gorp, Yvonne Oligschlaeger, Mike L J Jeurissen, Marion J J Gijbels, Wim A Buurman, Anita C E Vreugdenhil, Jan Willem M Greve, Jogchum Plat, Marten H Hofker, Satish Kalhan, Jussi Pihlajamäki, Patrick Lindsey, Ger H Koek, Ronit Shiri-Sverdlov
Non-alcoholic steatohepatitis (NASH) is characterized by liver lipid accumulation and inflammation. The mechanisms that trigger hepatic inflammation are poorly understood and subsequently, no specific non-invasive markers exist. We previously demonstrated a reduction in the plasma lysosomal enzyme, cathepsin D (CatD), in children with NASH compared to children without NASH. Recent studies have raised the concept that non-alcoholic fatty liver disease (NAFLD) in adults is distinct from children due to a different histological pattern in the liver...
December 6, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27921425/-oxldl-%C3%AE-2-glycoprotein-i-complex-as-a-pro-atherogenic-autoantigen-is-atherosclerosis-an-autoimmune-disease
#4
Pavel Kraml
Oxidation of atherogenic low-density lipoproteins (LDL) plays a key role in the pathogenesis of atherosclerosis. Oxidation stress and inflammation are closely interrelated and they can potentiate one another. In the subendothelial space of the arterial intima, monocytes/macrophages become activated and phagocyte oxidized LDL (oxLDL) via scavenger receptors. It has been demonstrated that oxLDL forms complex with plasma β2-glycoprotein I (β2GPI) and becomes autoantigenic triggering synthesis of specific antiphosholipid antibodies...
2016: Vnitr̆ní Lékar̆ství
https://www.readbyqxmd.com/read/27921316/light-triggered-assembly-of-gold-nanoparticles-for-photothermal-therapy-and-photoacoustic-imaging-of-tumors-in-vivo
#5
Xiaju Cheng, Rui Sun, Ling Yin, Zhifang Chai, Haibin Shi, Mingyuan Gao
Photocross-linkable Au nanoparticles are prepared through surface decoration of photolabile diazirine moieties. Both in vitro and in vivo studies indicate that the light-triggered cross-linking can dramatically shift the surface plasmon resonance of Au nanoparticles to near-infrared regions, which in consequence remarkably enhances their efficacy for photothermal therapy and photoacoustic imaging of tumors in vivo.
December 6, 2016: Advanced Materials
https://www.readbyqxmd.com/read/27921298/female-induced-remote-regulation-of-sperm-physiology-may-provide-opportunities-for-gamete-level-mate-choice
#6
Jukka Kekäläinen, Jonathan P Evans
In sedentary externally fertilizing species, direct interactions between mating partners are limited and pre-fertilization communication between sexes occur largely at the gamete level. Certain combinations of eggs and sperm often have higher fertilization success than others, which may be contingent on egg-derived chemical factors that preferentially attract sperm from compatible males. Here, we examine the mechanisms underlying such effects in the marine mussel Mytilus galloprovincialis, where differential sperm attraction has recently been shown to be associated with variation in offspring viability...
December 6, 2016: Evolution; International Journal of Organic Evolution
https://www.readbyqxmd.com/read/27921251/skin-manifestations-of-insulin-resistance-from-a-biochemical-stance-to-a-clinical-diagnosis-and-management
#7
REVIEW
Gloria González-Saldivar, René Rodríguez-Gutiérrez, Jorge Ocampo-Candiani, José Gerardo González-González, Minerva Gómez-Flores
Worldwide, more than 1.9 billion adults are overweight, and around 600 million people suffer from obesity. Similarly, ~382 million individuals live with diabetes, and 40-50% of the global population is labeled at "high risk" (i.e., prediabetes). The impact of these two chronic conditions relies not only on the burden of illnesses per se (i.e., associated increased morbidity and mortality), but also on their increased cost, burden of treatment, and decreased health-related quality of life. For this review a comprehensive search in several databases including PubMed (MEDLINE), Ovid EMBASE, Web of Science, and Scopus was conducted...
December 5, 2016: Dermatology and Therapy
https://www.readbyqxmd.com/read/27921176/two-feet-on-the-membrane-uptake-of-clostridial-neurotoxins
#8
Andreas Rummel
The extraordinary potency of botulinum neurotoxins (BoNT) and tetanus neurotoxin (TeNT) is mediated by their high neurospecificity, targeting peripheral cholinergic motoneurons leading to flaccid and spastic paralysis, respectively, and successive respiratory failure. Complex polysialo gangliosides accumulate BoNT and TeNT on the plasma membrane. The ganglioside binding in BoNT/A, B, E, F, G, and TeNT occurs via a conserved ganglioside-binding pocket within the most carboxyl-terminal 25 kDa domain HCC, whereas BoNT/C, DC, and D display here two different ganglioside binding sites...
December 1, 2016: Current Topics in Microbiology and Immunology
https://www.readbyqxmd.com/read/27921117/mcp1-triggers-monocyte-dysfunctions-during-abnormal-osteogenic-differentiation-of-mesenchymal-stem-cells-in-ankylosing-spondylitis
#9
Zhongyu Xie, Peng Wang, Jinteng Li, Yuxi Li, Shan Wang, Xiaohua Wu, Suhe Sun, Shuizhong Cen, Hongjun Su, Wen Deng, Zhenhua Liu, Yi Ouyang, Yanfeng Wu, Huiyong Shen
: Ankylosing spondylitis (AS) is a chronic inflammatory disease characterized by pathological osteogenesis and inflammation. However, the pathogenesis of AS and the pathological relationship between osteogenesis and inflammation in this disease remain largely unknown. Mesenchymal stem cells (MSCs) are multipotent progenitor cells capable of osteogenic differentiation and immunoregulation. Recently, we demonstrated that MSCs from AS patients (ASMSCs) have a greater potential for osteogenic differentiation than MSCs from healthy donors (HDMSCs), which therefore seems to be a component of pathological osteogenesis in AS...
December 5, 2016: Journal of Molecular Medicine: Official Organ of the "Gesellschaft Deutscher Naturforscher und Ärzte"
https://www.readbyqxmd.com/read/27921112/-gastroenterological-diseases-as-triggers-of-chest-pain
#10
J Labenz, C Labenz
BACKGROUND: Non-cardiac chest pain is very common and gastroenterological diseases are one of the most important causes. The frequency distribution of the underlying causes depends on the sector of the healthcare system in which it is ascertained. In individual cases it must always be taken into consideration that detection of coronary heart disease, for example, does not exclude another origin of chest pain. OBJECTIVE: This article provides a systematic review of gastroenterological diseases that can cause chest pain...
December 5, 2016: Der Internist
https://www.readbyqxmd.com/read/27921103/solanesol-induces-the-expression-of-heme-oxygenase-1-via-p38-and-akt-and-suppresses-the-production-of-proinflammatory-cytokines-in-raw264-7-cells
#11
Xiangyang Yao, Binyu Lu, Chaotian Lü, Qin Bai, Dazhong Yan, Yanli Wu, Zibing Hong, Hui Xu
The aim of the present study was to examine the anti-inflammatory effect of solanesol and to elucidate the underlying mechanisms. Heme oxygenase-1 (HO-1) plays an important role in cytoprotection against oxidative stress and inflammation. Solanesol induced HO-1 expression both at the level of mRNA and proteins, resulting in increased HO-1 activity. Solanesol treatment enhanced the level of the phosphorylated form, nuclear translocation, ARE-binding, and transcriptional activity of Nrf2. p38 and Akt contributed to ARE-driven HO-1 expression...
December 6, 2016: Food & Function
https://www.readbyqxmd.com/read/27921066/review-of-imaging-network-activities-in-developing-rodent-cerebral-cortex-in-vivo
#12
REVIEW
Heiko J Luhmann
The combination of voltage-sensitive dye imaging (VSDI) with multielectrode array (MEA) recordings in the rodent cerebral cortex in vivo allows the simultaneous analysis of large-scale network interactions and electrophysiological single-unit recordings. Using this approach, distinct patterns of spontaneous and sensory-evoked activity can be recorded in the primary somatosensory (S1) and motor cortex (M1) of newborn rats. Already at the day of birth, gamma oscillations and spindle bursts in the barrel cortex synchronize the activity of a local columnar ensemble, thereby generating an early topographic representation of the sensory periphery...
July 2017: Neurophotonics
https://www.readbyqxmd.com/read/27921058/celiac-crisis-associated-with-herpes-simplex-virus-esophagitis
#13
Alan Chen, Christopher M Linz, Julie L Tsay, Ming Jin, Samer S El-Dika
Celiac crisis is a rare presentation of celiac disease that is characterized by life-threatening electrolyte abnormalities, vitamin and mineral deficiencies, and diarrhea. Triggers for celiac crisis include major surgeries, pancreatitis, and infections of cytomegalovirus, and salmonella. A 24-year-old woman presented with celiac crisis associated with severe herpes simplex virus (HSV) esophagitis. This case demonstrates that nutritional deficiencies seen in celiac disease can result in a relative immunodeficiency, which may lead to other infectious complications...
August 2016: ACG Case Reports Journal
https://www.readbyqxmd.com/read/27921031/amniotic-epithelial-cells-a-new-tool-to-combat-aging-and-age-related-diseases
#14
Clara Di Germanio, Michel Bernier, Rafael de Cabo, Barbara Barboni
The number of elderly people is growing at an unprecedented rate and this increase of the aging population is expected to have a direct impact on the incidence of age-related diseases and healthcare-associated costs. Thus, it is imperative that new tools are developed to fight and slow age-related diseases. Regenerative medicine is a promising strategy for the maintenance of health and function late in life; however, stem cell-based therapies face several challenges including rejection and tumor transformation...
2016: Frontiers in Cell and Developmental Biology
https://www.readbyqxmd.com/read/27920986/fulminant-ecchymosis-as-the-initial-manifestation-of-antiphospholipid-syndrome-aps-triggered-by-respiratory-syncytial-virus-rsv-infection-a-case-report-and-review-of-the-literature
#15
Jun Makino, Sanjana Koshy, Sonal Bajaj, Young-Gwang Jeong, David C Perlman
We present a unique and informative instance of respiratory syncytial virus (RSV) infection associated with antiphospholipid syndrome (APS), and discuss this case in the context of the literature addressing the immunopathogenesis of APS associated with diverse infections. We describe the case of a 43-year-old man with no significant past medical history who presented with the acute onset of fever, hemoptysis, and extensive bullous, ecchymotic lesions in both lower extremities. Punch biopsy of the lesion demonstrated thrombotic vasculopathy...
2017: IDCases
https://www.readbyqxmd.com/read/27920935/cerebral-foreign-body-granuloma-in-brain-triggering-generalized-seizures-without-obvious-craniocerebral-injury-a-case-report-and-review-of-the-literature
#16
Nina Brawanski, Peter Baumgarten, Jürgen Konczalla, Volker Seifert, Christian Senft
BACKGROUND: Intracerebral foreign body granuloma is rarely reported. We present the case of a male patient with a cerebral foreign body granuloma. CASE DESCRIPTION: Initial admission of a 67-year-old male patient was after an aphasia followed by secondary generalized seizures. Cranial computed tomography (CCT) showed a metal-dense, wedge-shaped foreign body in the range of the frontal sinus on the left side, breaking through the frontal sinus, and creating a connection to the frontal cerebral lobe...
2016: Surgical Neurology International
https://www.readbyqxmd.com/read/27920854/recurrent-urinary-tract-infections-in-an-adult-with-a-duplicated-renal-collecting-system
#17
Junaid Raja, Amir M Mohareb, Bilori Bilori
Because of advancements in fetal imaging, anatomic variants of the genitourinary tract are most often discovered in the antenatal period. As such, general internists are less likely to encounter adult patients with previously undiagnosed anatomic abnormalities of the renal collecting system, such as duplicated kidneys. These abnormalities put patients at risk for urinary obstruction and recurrent infections of the urinary tract. We report the case of a 40-year-old diabetic patient with a previously undiagnosed duplex kidney who had recurrent episodes of diabetic ketoacidosis triggered by urinary tract infections...
December 2016: Radiology case reports
https://www.readbyqxmd.com/read/27920665/multiple-single-unit-long-term-tracking-on-organotypic-hippocampal-slices-using-high-density-microelectrode-arrays
#18
Wei Gong, Jure Senčar, Douglas J Bakkum, David Jäckel, Marie Engelene J Obien, Milos Radivojevic, Andreas R Hierlemann
A novel system to cultivate and record from organotypic brain slices directly on high-density microelectrode arrays (HD-MEA) was developed. This system allows for continuous recording of electrical activity of specific individual neurons at high spatial resolution while monitoring at the same time, neuronal network activity. For the first time, the electrical activity patterns of single neurons and the corresponding neuronal network in an organotypic hippocampal slice culture were studied during several consecutive weeks at daily intervals...
2016: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/27920570/formation-of-tight-junctions-between-neighboring-podocytes-is-an-early-ultrastructural-feature-in-experimental-crescentic-glomerulonephritis
#19
Lena Succar, Ross A Boadle, David C Harris, Gopala K Rangan
PURPOSE: In crescentic glomerulonephritis (CGN), the development of cellular bridges between podocytes and parietal epithelial cells (PECs) triggers glomerular crescent formation. However, the sequential changes in glomerular ultrastructure in CGN are not well defined. This study investigated the time course of glomerular ultrastructure in experimental CGN. METHODS: Transmission electron microscopy (TEM) was performed using kidney samples from rats with nephrotoxic serum nephritis (NSN) from day 1 to day 14...
2016: International Journal of Nephrology and Renovascular Disease
https://www.readbyqxmd.com/read/27920541/the-effect-of-body-mass-index-on-perioperative-thermoregulation
#20
Ayşe Belin Özer, Aysun Yildiz Altun, Ömer Lütfi Erhan, Tuba Çatak, Ümit Karatepe, İsmail Demirel, Gonca Çağlar Toprak
PURPOSE: We evaluated the effects of body mass index (BMI) on thermoregulation in obese patients scheduled to undergo laparoscopic abdominal surgery. METHODS: Sixty patients scheduled to undergo laparoscopic abdominal surgery with no pre-medication were included in the study. The patients were classified into 4 groups according to BMI <24.9, 25-39.9, 40-49.9, and >50. Anesthesia was provided with routine techniques. Tympanic and peripheral temperatures were recorded every 5 minutes starting with the induction of anesthesia...
2016: Therapeutics and Clinical Risk Management
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