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https://www.readbyqxmd.com/read/28317204/cockroach-allergen-serine-proteinases-isolation-sequencing-and-signalling-via-proteinase-activated-receptor-2-par2
#1
Danny J Polley, Koichiro Mihara, Rithwik Ramachandran, Harissios Vliagoftis, Bernard Renaux, Mahmoud Saifeddine, Michael O Daines, Scott Boitano, Morley D Hollenberg
BACKGROUND: Allergy to the German cockroach (Blattella germanica) is a significant asthma risk factor for inner-city communities. Cockroach, like other allergens, contains trypsin-like enzyme activity that contributes to allergenicity and airway inflammation by activating proteinase-activated receptors (PARs). To date, the enzymes responsible for the proteolytic activity of German cockroach allergen have not been characterized. OBJECTIVES: We aimed to identify, isolate and characterize the trypsin-like proteinases in German cockroach allergen extracts used for clinical skin tests...
March 20, 2017: Clinical and Experimental Allergy: Journal of the British Society for Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28289661/early-experience-with-a-partial-stapled-hemorrhoidopexy-for-treating-patients-with-grades-iii-iv-prolapsing-hemorrhoids
#2
Hyeonseok Jeong, Sunghwan Hwang, Kil O Ryu, Jiyong Lim, Hyun Tae Kim, Hye Mi Yu, Jihoon Yoon, Ju-Young Lee, Hyoung Rae Kim, Young Gil Choi
PURPOSE: Circular stapled hemorrhoidopexy (CSH) is widely used to treat patients with grades III-IV hemorrhoids because of less pain and short hospital stay. However, this procedure is associated with some complications, such as urge to defecate, anal stenosis, staple line dehiscence, abscess and sepsis. To avoid these complications, surgeons perform a partial stapled hemorrhoidopexy (PSH). The aim of this study is to present our early experience with the PSH. METHODS: We retrospectively reviewed the medical records of 58 patients with hemorrhoids who were treated with a PSH at Busan Hang-Un Hospital from January 2016 to June 2016...
February 2017: Annals of Coloproctology
https://www.readbyqxmd.com/read/28255959/a-novel-ccm1-krit1-heterozygous-nonsense-mutation-c-1864c-t-associated-with-familial-cerebral-cavernous-malformation-a-genetic-insight-from-an-8-year-continuous-observational-study
#3
Chenlong Yang, Van Halm-Lutterodt Nicholas, Jizong Zhao, Bingquan Wu, Haohao Zhong, Yan Li, Yulun Xu
Cerebral cavernous malformation (CCM) is a congenital vascular abnormality that predominantly affects the central nervous system, but that sometimes encroaches other vital tissues, including the retina, skin, and even liver. The familial form of CCM (FCCM) is considered to be an autosomal dominant disease with incomplete penetrance and variable expression, which is often attributed to mutations in three genes: CCM1, CCM2, and CCM3. We screened a Chinese family diagnosed with FCCM by using Sanger sequencing...
March 2, 2017: Journal of Molecular Neuroscience: MN
https://www.readbyqxmd.com/read/28249301/recombinant-human-acidic-fibroblast-growth-factor-afgf-expressed-in-nicotiana-benthamiana-potentially-inhibits-skin-photoaging
#4
Jang-Ho Ha, Ha-Neul Kim, Ki-Beom Moon, Jae-Heung Jeon, Dai-Hyun Jung, Su-Jung Kim, Hugh S Mason, Seo-Yeon Shin, Hyun-Soon Kim, Kyung-Mok Park
Responding to the need for recombinant acidic fibroblast growth factor in the pharmaceutical and cosmetic industries, we established a scalable expression system for recombinant human aFGF using transient and a DNA replicon vector expression in Nicotiana benthamiana. Recombinant human-acidic fibroblast growth factor was recovered following Agrobacterium infiltration of N. benthamiana. The optimal time point at which to harvest recombinant human acidic fibroblast growth factor expressing leaves was found to be 4 days post-infiltration, before necrosis was evident...
March 1, 2017: Planta Medica
https://www.readbyqxmd.com/read/28246361/new-mouse-model-for-chronic-infections-by-gram-negative-bacteria-enabling-the-study-of-anti-infective-efficacy-and-host-microbe-interactions
#5
Daniel Pletzer, Sarah C Mansour, Kelli Wuerth, Negin Rahanjam, Robert E W Hancock
Only a few, relatively cumbersome animal models enable long-term Gram-negative bacterial infections that mimic human situations, where untreated infections can last for weeks. Here, we describe a simple murine cutaneous abscess model that enables chronic or progressive infections, depending on the subcutaneously injected bacterial strain. In this model, Pseudomonas aeruginosa cystic fibrosis epidemic isolate LESB58 caused localized high-density skin and soft tissue infections and necrotic skin lesions for up to 10 days but did not disseminate in either CD-1 or C57BL/6 mice...
February 28, 2017: MBio
https://www.readbyqxmd.com/read/28213955/the-skin-barrier-function-gene-spink5-is-associated-with-challenge-proven-ige-mediated-food-allergy-in-infants
#6
Sarah E Ashley, Hern-Tze Tina Tan, Peter Vuillermin, Shyamali C Dharmage, Mimi L K Tang, Jennifer Koplin, Lyle C Gurrin, Adrian Lowe, Caroline Lodge, Anne-Louise Ponsonby, John Molloy, Pamela Martin, Melanie C Matheson, Richard Saffery, Katrina J Allen, Justine A Ellis, David Martino
BACKGROUND: A defective skin barrier is hypothesised to be an important route of sensitisation to dietary antigens, and may lead to food allergy in some children. Missense mutations in the Serine peptidase inhibitor kazal type 5 (SPINK5) skin barrier gene have previously been associated with allergic conditions. OBJECTIVE: To determine whether genetic variants in and around SPINK5 are associated with IgE mediated food allergy. METHOD: We genotyped 71 'tag' single nucleotide polymorphisms (tag-SNPs) within a region spanning ~263 kilobases (kb) including SPINK5 (~61kb) in n=722 (n=367 food allergic, n=199 food sensitised, tolerant and n=156 non-food allergic controls) 12-month infants (discovery sample) phenotyped for food allergy with the gold standard oral food challenge (OFC)...
February 18, 2017: Allergy
https://www.readbyqxmd.com/read/28207759/investigations-on-therapeutic-glucocerebrosidases-through-paired-detection-with-fluorescent-activity-based-probes
#7
Wouter W Kallemeijn, Saskia Scheij, Sascha Hoogendoorn, Martin D Witte, Daniela Herrera Moro Chao, Cindy P A A van Roomen, Roelof Ottenhoff, Herman S Overkleeft, Rolf G Boot, Johannes M F G Aerts
Deficiency of glucocerebrosidase (GBA) causes Gaucher disease (GD). In the common non-neuronopathic GD type I variant, glucosylceramide accumulates primarily in the lysosomes of visceral macrophages. Supplementing storage cells with lacking enzyme is accomplished via chronic intravenous administration of recombinant GBA containing mannose-terminated N-linked glycans, mediating the selective uptake by macrophages expressing mannose-binding lectin(s). Two recombinant GBA preparations with distinct N-linked glycans are registered in Europe for treatment of type I GD: imiglucerase (Genzyme), contains predominantly Man(3) glycans, and velaglucerase (Shire PLC) Man(9) glycans...
2017: PloS One
https://www.readbyqxmd.com/read/28115230/time-resolved-fluorescence-microscopy-flim-as-an-analytical-tool-in-skin-nanomedicine
#8
REVIEW
Ulrike Alexiev, Pierre Volz, Alexander Boreham, Robert Brodwolf
The emerging field of nanomedicine provides new approaches for the diagnosis and treatment of diseases, for symptom relief, and for monitoring of disease progression. Topical application of drug-loaded nanoparticles for the treatment of skin disorders is a promising strategy to overcome the stratum corneum, the upper layer of the skin, which represents an effective physical and biochemical barrier. The understanding of drug penetration into skin and enhanced penetration into skin facilitated by nanocarriers requires analytical tools that ideally allow to visualize the skin, its morphology, the drug carriers, drugs, their transport across the skin and possible interactions, as well as effects of the nanocarriers within the different skin layers...
January 21, 2017: European Journal of Pharmaceutics and Biopharmaceutics
https://www.readbyqxmd.com/read/28109500/is-routine-audiometric-testing-necessary-for-children-with-isolated-preauricular-lesions
#9
Grace T Wu, Conor Devine, Allen Xu, Katie Geelan-Hansen, Samantha Anne
INTRODUCTION: Preauricular lesions, including tags, pits, sinuses, and cysts are commonly seen. Some studies have shown increased incidence of hearing loss in these patients but other studies have failed to corroborate this finding. The purpose of this study is to evaluate the incidence of hearing loss in patients with isolated preauricular lesions. METHODS: Retrospective chart review of all pediatric otolaryngology patients seen at a tertiary academic center between 2008 and 2014...
February 2017: International Journal of Pediatric Otorhinolaryngology
https://www.readbyqxmd.com/read/28100779/intramembrane-proteolysis-of-astrotactins
#10
Hao Chang, Philip M Smallwood, John Williams, Jeremy Nathans
Astrotactins are vertebrate-specific membrane proteins implicated in neuron-glia interactions during central nervous system development and in hair follicle polarity during skin development. By studying epitope-tagged derivatives of mouse astrotactin-2 (Astn2) produced in transfected cells, we determined that the amino and carboxyl termini reside in the extracellular space and are initially linked by two transmembrane segments and a single cytoplasmic domain. We further show that Astn2 undergoes proteolytic cleavage in the second transmembrane domain (TM2) and that a disulfide bond holds the resulting two fragments together...
February 24, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28090468/clinical-features-and-extraintestinal-manifestations-of-crohn-disease-in-children
#11
Young Ah Lee, Peter Chun, Eun Ha Hwang, Sang Wook Mun, Yeoun Joo Lee, Jae Hong Park
PURPOSE: The aim of this study was to investigate the clinical features and extraintestinal manifestations (EIMs) of Crohn disease (CD) in Korean pediatric patients. METHODS: The medical records of 73 children diagnosed with CD were retrospectively reviewed. Data regarding baseline demographic and clinical characteristics, including CD phenotype at diagnosis based on the Montreal classification, and clinical features and course of EIMs were investigated. RESULTS: Fifty-two (71...
December 2016: Pediatric Gastroenterology, Hepatology & Nutrition
https://www.readbyqxmd.com/read/28076468/phenotypic-diversity-and-selection-maintain-leishmania-amazonensis-infectivity-in-balb-c-mouse-model
#12
Benoît Espiau, Virginia Vilhena, Armelle Cuvillier, Aldina Barral, Gilles Merlin
Leishmania are protozoan parasites that show remarkable diversity, as revealed by the various clinical forms of leishmaniasis, which can range from mild skin lesions to severe metastatic cutaneous/mucosal lesions. The exact nature and extent of Leishmania phenotypic diversity in establishing infection is not fully understood. In order to try to understand some aspects of this diversity, we subcutaneously infected BALB/c mice with first and second generation subclones of a L. amazonensis strain isolated from a patient (BA125) and examined in vivo lesion growth rate and antimony susceptibility...
January 1, 2017: Memórias do Instituto Oswaldo Cruz
https://www.readbyqxmd.com/read/28047591/su-g-iep3-12-preliminary-report-on-the-experience-of-patient-radiation-dose-monitoring-and-tracking-systems-pemnet-radimetrics-and-dosewatch
#13
P Lin, F Corwin, M Ghita
PURPOSE: Three patient radiation dose monitoring and tracking (PRDMT) systems have been in operation at this institution for the past 6 months. There are useful information that should be disseminated to those who are considering installation of PRDMT programs. In addition, there are "problems" uncovered in the process of estimating fluoroscopic "peak" skin dose (PSD), especially, for those patients who received interventional angiographic studies and in conjunction with surgical procedures...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28017864/modifying-effects-of-carboxyl-group-on-the-interaction-of-recombinant-s100a8-a9-complex-with-tyrosinase
#14
Fatemeh NematiNiko, Koorosh Goodarzvand Chegini, Hamideh Asghari, Abbas Amini, Nematollah Gheibi
Tyrosinase is a determinant enzyme for modulating melanin production as its abnormal activity can result in an increased amount of melanin. Reduction of tyrosinase activity has been targeted for preventing and healing hyperpigmentation of skin, such as melanoma and age related spots. The aim of this systematic study is to investigate whether recombinant S100A8/A9 and its modified form reduce the activity of mushroom tyrosinase (MT) through changing its structure. Recombinant His-Tagged S100A8 and S100A9 are expressed in Escherichia coli BL21 (DE3) and modified using Woodward's reagent K which is a carboxyl group modifier...
March 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28007053/specific-skin-signs-as-a-cutaneous-marker-of-diabetes-mellitus-and-the-prediabetic-state-a-systematic-review
#15
REVIEW
Rewend Salman Bustan, Daanyaal Wasim, Knud Bonnet Yderstræde, Anette Bygum
INTRODUCTION: Diabetes mellitus and the prediabetic state are associated with a number of skin manifestations. This study is a systematic review of the following manifestations: acanthosis nigricans (AN), skin tags (ST), diabetic dermopathy (DD), rubeosis faciei (RF), pruritus (PR), granuloma annulare (GA), necrobiosis lipoidica (NL), scleroedema diabeticorum (SD) and bullosis diabeticorum (BD). These conditions possibly relate to underlying diabetogenic mechanisms. Our aim was to determine whether skin signs are feasible as cutaneous markers for the prediabetic or diabetic state...
January 2017: Danish Medical Journal
https://www.readbyqxmd.com/read/27965336/just-a-pinch-technique-for-skin-tag-removal-in-sensitive-areas
#16
Jay E Taylor, W E Osmun
No abstract text is available yet for this article.
December 2016: Canadian Family Physician Médecin de Famille Canadien
https://www.readbyqxmd.com/read/27933638/nursing-interventions-for-smoking-cessation-in-hospitalized-patients-a-systematic-review
#17
REVIEW
Z Kazemzadeh, Z S Manzari, Z Pouresmail
AIM: This study aimed to clarify the role of nurses in planning and implementation of nursing interventions related to smoking cessation. BACKGROUND AND INTRODUCTION: Nearly half of all smokers die from smoking-related illnesses. Quitting smoking can reduce these problems. Smoking cessation interventions include various types helping smokers successfully quit. Studies suggest that hospitalization can be a golden opportunity for nurses helping patients to quit smoking because of No Smoking regulations...
December 9, 2016: International Nursing Review
https://www.readbyqxmd.com/read/27886972/the-resident-run-minor-surgery-clinic-a-pilot-study-to-safely-increase-operative-autonomy
#18
REVIEW
Brandon M Wojcik, Zhi Ven Fong, Madhukar S Patel, David C Chang, Emil Petrusa, John T Mullen, Roy Phitayakorn
OBJECTIVE: General surgery training has evolved to align with changes in work hour restrictions, supervision regulations, and reimbursement practices. This has culminated in a lack of operative autonomy, leaving residents feeling inadequately prepared to perform surgery independently when beginning fellowship or practice. A resident-run minor surgery clinic increases junior resident autonomy, but its effects on patient outcomes have not been formally established. This pilot study evaluated the safety of implementing a resident-run minor surgery clinic within a university-based general surgery training program...
November 2016: Journal of Surgical Education
https://www.readbyqxmd.com/read/27871921/eeg-frequency-tagging-using-ultra-slow-periodic-heat-stimulation-of-the-skin-reveals-cortical-activity-specifically-related-to-c-fiber-thermonociceptors
#19
Elisabeth Colon, Giulia Liberati, André Mouraux
The recording of event-related brain potentials triggered by a transient heat stimulus is used extensively to study nociception and diagnose lesions or dysfunctions of the nociceptive system in humans. However, these responses are related exclusively to the activation of a specific subclass of nociceptive afferents: quickly-adapting thermonociceptors. In fact, except if the activation of Aδ fibers is avoided or if A fibers are blocked, these responses specifically reflect activity triggered by the activation of Type 2 quickly-adapting A fiber mechano-heat nociceptors (AMH-2)...
February 1, 2017: NeuroImage
https://www.readbyqxmd.com/read/27865989/drug-delivery-across-intact-and-disrupted-skin-barrier-identification-of-cell-populations-interacting-with-penetrated-thermoresponsive-nanogels
#20
F Rancan, M Giulbudagian, J Jurisch, U Blume-Peytavi, M Calderón, A Vogt
Nanoscaled soft particles, such as nanogels, can be designed to incorporate different types of compounds and release them in a controlled and triggered manner. Thermoresponsive nanogels (tNG), releasing their cargo above a defined temperature, are promising carrier systems for inflammatory skin diseases, where the temperature of diseased skin differs from that of healthy skin areas. In this study a polyglycerol-based tNG with diameter of 156 nm was investigated for penetration and release properties upon topical application on ex vivo human skin with intact or disrupted barrier...
November 16, 2016: European Journal of Pharmaceutics and Biopharmaceutics
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