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https://www.readbyqxmd.com/read/28922871/divergence-of-the-venom-exogene-repertoire-in-two-sister-species-of-turriconus
#1
Qing Li, Neda Barghi, Aiping Lu, Alexander E Fedosov, Pradip K Bandyopadhyay, Arturo O Lluisma, Gisela P Concepcion, Mark Yandell, Baldomero M Olivera, Helena Safavi-Hemami
The genus Conus comprises approximately 700 species of venomous marine cone snails that are highly efficient predators of worms, snails, and fish. In evolutionary terms, cone snails are relatively young with the earliest fossil records occurring in the Lower Eocene, 55 Ma. The rapid radiation of cone snail species has been accompanied by remarkably high rates of toxin diversification. To shed light on the molecular mechanisms that accompany speciation, we investigated the toxin repertoire of two sister species, Conus andremenezi and Conus praecellens, that were until recently considered a single variable species...
September 1, 2017: Genome Biology and Evolution
https://www.readbyqxmd.com/read/28922518/accelerated-epithelialization-and-improved-wound-healing-metrics-in-porcine-full-thickness-wounds-transplanted-with-full-thickness-skin-micrografts
#2
Christina L Rettinger, John L Fletcher, Anders H Carlsson, Rodney K Chan
Split-thickness skin grafting (STSG) is the current gold standard for treatment of extensive burn and traumatic skin injuries. However, STSG is limited by donor-site morbidity and availability, and often leads to scarring and wound contracture. Furthermore, these thin grafts lack dermal elements such as nerves and adnexa which are important in recapitulating normal skin function. Methods of fractional skin replacement either as minced STSGs or microscopic skin tissue columns (MSTCs) have been proposed, though these techniques have not been fully-characterized and lack evidence of regenerated adnexal structures...
September 18, 2017: Wound Repair and Regeneration
https://www.readbyqxmd.com/read/28922328/minor-salivary-gland-transplantation-for-severe-dry-eyes
#3
Tais Hitomi Wakamatsu, Ana Estela Besteti Pires Ponce SantʼAnna, Priscila Cardoso Cristovam, Venâncio Avancini Ferreira Alves, Alda Wakamatsu, José Alvaro Pereira Gomes
Dry eye is a multifactorial disease comprising a wide spectrum of ocular surface alterations and symptoms of discomfort. In most patients with aqueous-deficient dry eye, pharmaceutical tear substitutes are used to control symptoms and prevent ocular surface damage. However, in severe dry eye conditions caused by cicatricial disorders, such as Stevens-Johnson syndrome and ocular cicatricial mucous membrane pemphigoid, noninvasive treatments are insufficient, and patients are at risk of developing complications that can lead to blindness...
September 15, 2017: Cornea
https://www.readbyqxmd.com/read/28922112/effects-of-flexible-dry-electrode-design-on-electrodermal-activity-stimulus-response-detection
#4
Peter A Haddad, Amir Servati, Saeid Soltanian, Frank Ko, Peyman Servati
OBJECTIVE: The focus of this research is to evaluate the effects of design parameters including surface area, distance between and geometry of dry flexible electrodes on electrodermal activity (EDA) stimulus response detection. METHODS: EDA is a result of the autonomic nervous system (ANS) being stimulated, which causes sweat and changes the electrical characteristics of the skin. Standard silver/silver chloride (Ag/AgCl) EDA electrodes are rigid and lack conformability in contact with skin...
September 18, 2017: IEEE Transactions on Bio-medical Engineering
https://www.readbyqxmd.com/read/28922106/igg4-related-disease-a-patient-with-multiple-organ-involvement
#5
Miroslav Průcha, Lenka Sedláčková
IgG4-related diseases represent a heterogeneous group of conditions characterised by elevated serum IgG4 levels and fibrotic or sclerosing changes in the affected organs or systems accompanied by IgG4-positive plasma cells. A disease associated with IgG4 may affect virtually any organ - salivary glands, periorbital tissue, kidneys, lungs, meninges, aorta, prostate, pericardium or skin. Histopathological findings are uniform, characterised by a major lymphoplasmocytic infiltrate and the presence of IgG4-producing plasma cells, irrespective of the affected site...
2017: Prague Medical Report
https://www.readbyqxmd.com/read/28922088/semifluorinated-alkane-eye-drops-for-treatment-of-dry-eye-disease-due-to-meibomian-gland-disease
#6
Philipp Steven, Albert J Augustin, Gerd Geerling, Thomas Kaercher, Florian Kretz, Kathleen Kunert, Johannes Menzel-Severing, Norbert Schrage, Wolfgang Schrems, Sonja Krösser, Michael Beckert, Elisabeth M Messmer
PURPOSE: Meibomian gland disease is generally accepted as the leading cause for evaporative dry eye disease (DED). In a previous study, perfluorohexyloctane, a semifluorinated alkane, has been demonstrated to significantly increase tear film breakup time and to reduce corneal fluorescein staining in patients with evaporative DED, thereby vastly reducing dry eye-related symptoms. This study was set up to evaluate perfluorohexyloctane in a larger population of patients with Meibomian gland dysfunction...
September 18, 2017: Journal of Ocular Pharmacology and Therapeutics
https://www.readbyqxmd.com/read/28922018/tacrolimus-ointment-for-refractory-posterior-blepharitis
#7
Fernando Eiji Sakassegawa-Naves, Helena Maria Moraes Ricci, Bernardo Kaplan Moscovici, Daniela Akemi Miyamoto, Brenda Biagio Chiacchio, Ricardo Holzchuh, Ruth Muyuki Santo, Richard Yudi Hida
PURPOSE: This prospective, randomized, double-blind interventional case series was designed to evaluate the short-term efficacy of 0.03% tacrolimus ointment as a new therapeutic approach for refractory cases of posterior blepharitis. METHODS: Forty eyes (20 patients) with posterior blepharitis refractory to previous treatment were randomized. Eighteen eyes (9 patients) were treated with 0.03% tacrolimus ointment and 20 eyes (10 patients) with placebo ointment twice daily...
September 18, 2017: Current Eye Research
https://www.readbyqxmd.com/read/28921843/potential-proton-and-photon-dose-degradation-in-advanced-head-and-neck-cancer-patients-by-intratherapy-changes
#8
Kristin Stützer, Annika Jakobi, Anna Bandurska-Luque, Steffen Barczyk, Carolin Arnsmeyer, Steffen Löck, Christian Richter
PURPOSE: Evaluation of dose degradation by anatomic changes for head-and-neck cancer (HNC) intensity-modulated proton therapy (IMPT) relative to intensity-modulated photon therapy (IMRT) and identification of potential indicators for IMPT treatment plan adaptation. METHODS: For 31 advanced HNC datasets, IMPT and IMRT plans were recalculated on a computed tomography scan (CT) taken after about 4 weeks of therapy. Dose parameter changes were determined for the organs at risk (OARs) spinal cord, brain stem, parotid glands, brachial plexus, and mandible, for the clinical target volume (CTV) and the healthy tissue outside planning target volume (PTV)...
September 18, 2017: Journal of Applied Clinical Medical Physics
https://www.readbyqxmd.com/read/28921580/integrating-prior-information-into-microwave-tomography-part-1-impact-of-detail-on-image-quality
#9
Douglas Kurrant, Anastasia Baran, Joe LoVetri, Elise Fear
PURPOSE: The authors investigate the impact that incremental increases in the level of detail of patient-specific prior information have on image quality and the convergence behavior of an inversion algorithm in the context of near-field microwave breast imaging. A methodology is presented that uses image quality measures to characterize the ability of the algorithm to reconstruct both internal structures and lesions embedded in fibroglandular tissue. The approach permits key aspects that impact the quality of reconstruction of these structures to be identified and quantified...
September 17, 2017: Medical Physics
https://www.readbyqxmd.com/read/28921500/growth-hormone-therapy-for-people-with-thalassaemia
#10
REVIEW
Chin Fang Ngim, Nai Ming Lai, Janet Yh Hong, Shir Ley Tan, Amutha Ramadas, Premala Muthukumarasamy, Meow-Keong Thong
BACKGROUND: Thalassaemia is a recessively-inherited blood disorder that leads to anaemia of varying severity. In those affected by the more severe forms, regular blood transfusions are required which may lead to iron overload. Accumulated iron from blood transfusions may be deposited in vital organs including the heart, liver and endocrine organs such as the pituitary glands which can affect growth hormone production. Growth hormone deficiency is one of the factors that can lead to short stature, a common complication in people with thalassaemia...
September 18, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28920935/spinal-cord-injury-induced-immunodeficiency-is-mediated-by-a-sympathetic-neuroendocrine-adrenal-reflex
#11
Harald Prüss, Andrea Tedeschi, Aude Thiriot, Lydia Lynch, Scott M Loughhead, Susanne Stutte, Irina B Mazo, Marcel A Kopp, Benedikt Brommer, Christian Blex, Laura-Christin Geurtz, Thomas Liebscher, Andreas Niedeggen, Ulrich Dirnagl, Frank Bradke, Magdalena S Volz, Michael J DeVivo, Yuying Chen, Ulrich H von Andrian, Jan M Schwab
Acute spinal cord injury (SCI) causes systemic immunosuppression and life-threatening infections, thought to result from noradrenergic overactivation and excess glucocorticoid release via hypothalamus-pituitary-adrenal axis stimulation. Instead of consecutive hypothalamus-pituitary-adrenal axis activation, we report that acute SCI in mice induced suppression of serum norepinephrine and concomitant increase in cortisol, despite suppressed adrenocorticotropic hormone, indicating primary (adrenal) hypercortisolism...
September 18, 2017: Nature Neuroscience
https://www.readbyqxmd.com/read/28920582/an-age-specific-biokinetic-model-for-iodine
#12
Richard Wayne Leggett
This paper reviews age-specific biokinetic data for iodine in humans and extends to pre-adult ages the baseline parameter values of the author's previously published model for systemic iodine in adult humans. Compared with the ICRP's current age-specific model for iodine introduced in Publication 56 (1989), the present model provides a more detailed description of the behavior of iodine in the human body; predicts moderately higher doses to the thyroid for short-lived isotopes of iodine; predicts similar doses to the thyroid for isotopes with half-time greater than a few hours; and, for most iodine isotopes, predicts substantially higher doses to salivary glands, stomach wall, liver, and kidneys...
September 18, 2017: Journal of Radiological Protection: Official Journal of the Society for Radiological Protection
https://www.readbyqxmd.com/read/28920557/automated-microspect-microct-image-analysis-of-the-mouse-thyroid-gland
#13
Peng Cheng, Brynn Hollingsworth, Daniel Scarberry, Daniel Hueng-Yuan Shen, Kimerly Powell, Sean C Smart, John Beech, Xiaochao Sheng, Lawrence S Kirschner, Chia-Hsiang Menq, Sissy M Jhiang
<b>Background:</b> The ability of thyroid follicular cells to take up iodine enables the use of radioactive iodine (RAI) for imaging and targeted killing of RAI-avid thyroid cancer following thyroidectomy. To facilitate identifying novel strategies to improve <sup>131</sup>I therapeutic efficacy for patients with RAI refractory disease, it is desired to optimize image acquisition and analysis for preclinical mouse models of thyroid cancer. <b>Methods:</b> A customized mouse cradle was designed and used for microSPECT/CT image acquisition at 1 hour (t1) and 24 hours (t24) post-injection of <sup>123</sup>I, which mainly reflect RAI influx/efflux equilibrium and RAI retention in the thyroid, respectively...
September 16, 2017: Thyroid: Official Journal of the American Thyroid Association
https://www.readbyqxmd.com/read/28919826/forehead-galeal-pericranial-flap-for-single-staged-total-upper-eyelid-reconstruction-in-sebaceous-gland-carcinoma-excision
#14
Hui-Hsiu Chang, Edward Suh, Blake H Fortes, Franklin Zheng, Anny Ms Cheng
PURPOSE: To present a successful case of single-staged total upper eyelid reconstruction after sebaceous gland carcinoma excision by using forehead galeal pericranial flap. OBSERVATIONS: An 80-year-old female with a progressively enlarged left upper eyelid mass presented with ocular irritation, blurred vision, and gritty sensation despite topical antibiotics treatment. This multinodular mass involved the left total upper eyelid, compromised corneal surface integrity, and caused complete ptosis...
2017: International Medical Case Reports Journal
https://www.readbyqxmd.com/read/28919585/association-of-human-leukocyte-antigens-class-i-and-ii-with-graves-disease-in-iranian-population
#15
Zahra Mehraji, Ali Farazmand, Alireza Esteghamati, Sina Noshad, Maryam Sadr, Somayeh Amirzargar, Mir Saeed Yekaninejad, Aliakbar Amirzargar
BACKGROUND: Graves' disease (GD), a highly rampant autoimmune disorder of the thyroid gland, is responsible for 60-80% of the clinical cases of hyperthyroidism. Over the past decades, genetic association studies have identified several GD susceptibility loci in CTLA-4, TSHR and major histocompatibility complex regions. The information on the association between the human leukocyte antigens (HLA) and GD among Iranians is scarce. OBJECTIVE: To identify HLA polymorphisms that might confer susceptibility or protect against GD...
September 2017: Iranian Journal of Immunology: IJI
https://www.readbyqxmd.com/read/28919450/seasonal-expression-of-p450c17-and-5%C3%AE-reductase-2-in-the-scented-gland-of-male-muskrats-ondatra-zibethicus
#16
Wentao Han, Wenqian Xie, Yan Zhang, Fengwei Zhang, Haolin Zhang, Yingying Han, Zhengrong Yuan, Qiang Weng
Cytochrome P450 17A1 (P450c17) is the key enzyme required for the production of androgenic sex steroids by converting progestogens to androgens. 5α-reductases are enzymes that convert testosterone (T) to dihydrotestosterone (DHT), which has a greater affinity for androgen receptors (AR) and stronger action than T. Our previous studies revealed that the scented glands of male muskrats expressed AR during the breeding and nonbreeding seasons. To further seek evidence of the activities of androgens in scented glands, the expression patterns of P450c17 and 5α-reductase 2 were investigated in the scented glands of male muskrats during the breeding and nonbreeding seasons...
September 14, 2017: General and Comparative Endocrinology
https://www.readbyqxmd.com/read/28919448/review-7%C3%AE-hydroxypregnenolone-regulating-locomotor-behavior-identified-in-the-brain-and-pineal-gland-across-vertebrates
#17
REVIEW
Kazuyoshi Tsutsui, Shogo Haraguchi, Hubert Vaudry
The brain synthesizes steroids de novo from cholesterol, which are called neurosteroids. Based on extensive studies on neurosteroids over the past thirty years, it is now accepted that neurosteroidogenesis in the brain is a conserved property across vertebrates. However, the formation of bioactive neurosteroids in the brain is still incompletely elucidated in vertebrates. In fact, we recently identified 7 α -hydroxypregnenolone (7 α -OH PREG) as a novel bioactive neurosteroid stimulating locomotor behavior in the brain of several vertebrates...
September 14, 2017: General and Comparative Endocrinology
https://www.readbyqxmd.com/read/28919299/the-retrotransposon-gag-domain-containing-protein-rgag4-is-an-ikaros-target-in-the-pituitary
#18
Zhongyi Shen, Sylvia L Asa, Shereen Ezzat
Previous studies have established the common and critical involvement of the zinc finger protein Ikaros in lymphoid and pituitary cell development and expansion. Key to the assembly of several transcriptional networks, we have demonstrated up-regulation of Ikaros and its interacting partner the C-terminal Binding Protein (CtBP) in response to hypoxia. This prompted us to explore common transcriptional targets using a chromatin immunoprecipitate (ChIP) screen of DNA from pituitary corticotroph cells. This strategy yielded a finite list of targets common to both transcription factors that included the metalloprotease ADAMTS10...
September 14, 2017: Molecular and Cellular Endocrinology
https://www.readbyqxmd.com/read/28919264/prolactin-alters-the-mammary-epithelial-hierarchy-increasing-progenitors-and-facilitating-ovarian-steroid-action
#19
Kathleen A O'Leary, Michael P Shea, Stephanie Salituro, Courtney E Blohm, Linda A Schuler
Hormones drive mammary development and function and play critical roles in breast cancer. Epidemiologic studies link prolactin (PRL) to increased risk for aggressive cancers that express estrogen receptor α (ERα). However, in contrast to ovarian steroids, PRL actions on the mammary gland outside of pregnancy are poorly understood. We employed the transgenic NRL-PRL model to examine the effects of PRL alone and with defined estrogen/progesterone exposure on stem/progenitor activity and regulatory networks that drive epithelial differentiation...
September 7, 2017: Stem Cell Reports
https://www.readbyqxmd.com/read/28918871/-indications-and-limits-of-ablative-therapies-in-prostate-cancer
#20
R Sanchez-Salas, E Barret, R Renard-Penna, J-M Cosset, P Dell'Oglio, J Battista, A Gangi, H Lang, X Cathelineau
OBJECTIVE: To perform a state of the art about indications and limits of ablative therapies for localized prostate cancer. METHODS: A review of the scientific literature was performed in Medline database (http://www.ncbi.nlm.nih.gov) and Embase (http://www.embase.com) using different associations of keywords. Publications obtained were selected based on methodology, language and relevance. After selection, 107 articles were analysed. RESULTS: The objective to combine reduction of side effects and oncological control has induced recent development of several ablative therapies...
September 14, 2017: Progrès en Urologie
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