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https://www.readbyqxmd.com/read/28545045/differences-in-speb-protease-activity-among-group-a-streptococci-associated-with-superficial-invasive-and-autoimmune-disease
#1
Anhphan T Ly, John P Noto, Odaelys L Walwyn, Robert R Tanz, Stanford T Shulman, William Kabat, Debra E Bessen
The secreted cysteine proteinase SpeB is an important virulence factor of group A streptococci (GAS), whereby SpeB activity varies widely among strains. To establish the degree to which SpeB activity correlates with disease, GAS organisms were recovered from patients with pharyngitis, impetigo, invasive disease or acute rheumatic fever (ARF), and selected for analysis using rigorous sampling criteria; >300 GAS isolates were tested for SpeB activity by casein digestion assays, and each GAS isolate was scored as a SpeB-producer or non-producer...
2017: PloS One
https://www.readbyqxmd.com/read/28544550/post-laryngectomy-stricture-and-pharyngocutaneous-fistula-review-of-techniques-in-primary-pharyngeal-reconstruction-in-laryngectomy
#2
Benjamin Walton, Julian Vellucci, Palak Patel, Kristofer Jennings, Susan McCammon, Michael P Underbrink
OBJECTIVE: The purpose of this study is to find a correlation between closure technique in pharyngeal closure and outcomes of both pharyngocutaneous fistula and post-laryngectomy stricture after laryngectomy. STUDY DESIGN: Retrospective Chart Review. METHODS: We retrospectively reviewed a total of 151 patients over a 20 year period from January 1994 to December of 2013 who underwent primary pharyngeal reconstruction after total laryngectomy specifically looking at the closure technique in relation to pharyngo-cutaneous fistula (PCF) and post-laryngectomy stricture post-operatively...
May 19, 2017: Clinical Otolaryngology
https://www.readbyqxmd.com/read/28544238/the-important-role-of-positioning-in-nasogastric-tube-insertion-in-unconscious-patients-a-prospective-randomized-double-blind-study
#3
Wangmiao Zhao, Chunyan Ge, Wanzeng Zhang, Zhaosheng Sun, Xiaowei Li
AIMS AND OBJECTIVES: To investigate whether positioning the body in a lateral decubitus position will facilitate nasogastric tube insertion in unconscious patients. BACKGROUND: Inserting a nasogastric tube into unconscious patients can be challenging because these patients cannot cooperate with the operator. The piriform sinus and arytenoid cartilage are the most commonly reported impaction sites. However, we found that the first impaction site was the backward displaced tongue when inserting a nasogastric tube in unconscious patients who often exhibited glossoptosis...
May 25, 2017: Journal of Clinical Nursing
https://www.readbyqxmd.com/read/28543851/guttate-psoriasis-triggered-by-perianal-streptococcal-infection
#4
F M Garritsen, D E Kraag, M de Graaf
The association of guttate psoriasis (GP) with streptococcal pharyngitis is well accepted. However, less is known about the association with perianal streptococcal infection. We report a case of a 19-month-old boy with GP after a preceding perianal streptococcal dermatitis, with no clinical signs of a streptococcal pharyngitis. Treatment with phenethicillin was given together with mometasone ointment. After 4 weeks, the perianal redness was reduced and the psoriasis had improved significantly. A review of the literature revealed nine previous case reports, comprising a total of 15 patients...
May 22, 2017: Clinical and Experimental Dermatology
https://www.readbyqxmd.com/read/28543631/a-three-dimensional-placoderm-stem-group-gnathostome-pharyngeal-skeleton-and-its-implications-for-primitive-gnathostome-pharyngeal-architecture
#5
Martin D Brazeau, Matt Friedman, Anna Jerve, Robert C Atwood
The pharyngeal skeleton is a key vertebrate anatomical system in debates on the origin of jaws and gnathostome (jawed vertebrate) feeding. Furthermore, it offers considerable potential as a source of phylogenetic data. Well-preserved examples of pharyngeal skeletons from stem-group gnathostomes remain poorly known. Here, we describe an articulated, nearly complete pharyngeal skeleton in an Early Devonian placoderm fish, Paraplesiobatis heinrichsi Broili, from Hunsrück Slate of Germany. Using synchrotron light tomography, we resolve and reconstruct the three-dimensional gill arch architecture of Paraplesiobatis and compare it with other gnathostomes...
May 23, 2017: Journal of Morphology
https://www.readbyqxmd.com/read/28543621/morphological-characteristics-of-the-oropharyngeal-cavity-tongue-palate-and-laryngeal-entrance-in-the-eurasian-coot-fulica-atra-linnaeus-1758
#6
M M A Abumandour, N E R El-Bakary
The present study represents the first definitive anatomical description of the oropharyngeal cavity of the coot Fulica atra. For this purpose, the organs of six birds were prepared to examine grossly and by SEM and stereomicroscope. The oval lingual apex had multiple overlapping branched acicular processes on its anterior and lateral border. The lingual apex and body had multiple caudally directed filiform-like papillae. By stereomicroscopy, the lingual root had a characteristic appearance and consisted of four parts...
May 22, 2017: Anatomia, Histologia, Embryologia
https://www.readbyqxmd.com/read/28539822/induction-of-mitotic-delay-in-pharyngeal-and-nasopharyngeal-carcinoma-cells-using-an-aqueous-extract-of-ajuga-bracteosa
#7
Yu-Tsai Lin, Chih-Che Lin, Hung-Chen Wang, Yi-Chiang Hsu
Nasopharyngeal carcinoma (NPC) is a common cancer in Southeast Asia, for which radiotherapy and/or chemotherapy are the primary treatment methods. Many herbs are known to have potential uses in chemotherapy; however, the mechanisms underlying the observed antitumor activity of Ajuga bracteosa (AB) against NPC remain unclear. We explored the antitumor effects of AB, which was shown specifically to induce mitotic delay in pharyngeal (Detroit 562) and nasopharyngeal (Hone-1) cancer cells. Proliferation of cancer cells after exposure to aqueous extract of A...
2017: International Journal of Medical Sciences
https://www.readbyqxmd.com/read/28539578/drug-induced-inhibition-of-angiotensin-converting-enzyme-and-dipeptidyl-peptidase-4-results-in-nearly-therapy-resistant-bradykinin-induced-angioedema-a-case-report
#8
Janina Hahn, Susanne Trainotti, Thomas K Hoffmann, Jens Greve
BACKGROUND Bradykinin is an underestimated mediator of angioedema. One subgroup of bradykinin induced angioedema is angioedema triggered by treatment with angiotensin converting enzyme (ACE) inhibitors. Due to its localization in the head and neck region and its unpredictable course, it is a possibly life-threatening condition. There is not an officially approved treatment for ACE inhibitor induced angioedema. CASE REPORT We present a case of an 83-year-old woman, who presented to our ENT department because of acute swelling of the tongue...
May 25, 2017: American Journal of Case Reports
https://www.readbyqxmd.com/read/28539007/videolaryngoscopy-versus-direct-laryngoscopy-for-tracheal-intubation-in-children-excluding-neonates
#9
REVIEW
Ibtihal S Abdelgadir, Robert S Phillips, Davinder Singh, Michael P Moncreiff, Joanne L Lumsden
BACKGROUND: Direct laryngoscopy is the method currently used for tracheal intubation in children. It occasionally offers unexpectedly poor laryngeal views. Indirect laryngoscopy involves visualizing the vocal cords by means other than obtaining a direct sight, with the potential to improve outcomes. We reviewed the current available literature and performed a meta-analysis to compare direct versus indirect laryngoscopy, or videolaryngoscopy, with regards to efficacy and adverse effects...
May 24, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28538821/sensory-symptoms-in-patients-undergoing-thyroidectomy
#10
Lillian Fernandes de Araújo, Leonardo Wanderley Lopes, Priscila Oliveira Costa Silva, Victor Jose Ferreira Perrusi, Vívian Lisboa de Lucena Farias, Elma Heitmann Mares Azevedo
Purpose: To verify the occurrence of sensory symptoms in thyroidectomy patients pre- and post-operatively. Methods: This is a prospective, quantitative, descriptive study conducted with a sample of twelve patients undergoing thyroidectomy. The participants underwent visual laryngeal examination and responded to the Upper Aerodigestive Symptoms (UADS) and Vocal Tract Discomfort Scale (VTDS) questionnaires before and after the surgery. Results: There was higher occurrence of vocal fatigue, hoarseness, pharyngeal bolus, dry throat, and throat clearing preoperatively, whereas higher occurrence of hoarseness, vocal fatigue, cough, and pharyngeal bolus was observed postoperatively for the UADS...
May 15, 2017: CoDAS
https://www.readbyqxmd.com/read/28538580/what-s-new-in-cleft-palate-and-velopharyngeal-dysfunction-management
#11
Sanjay Naran, Matthew Ford, Joseph E Losee
LEARNING OBJECTIVES: After studying this article, the participant should be able to: 1. Have a clear understanding of the evolution of concepts of velopharyngeal dysfunction, especially as it relates to patients with a cleft palate. 2. Explain the subjective and objective evaluation of speech in children with velopharyngeal dysfunction. 3. On the basis of these diagnostic findings, be able to classify types of velopharyngeal dysfunction. 4. Develop a safe, evidence-based, patient-customized treatment plan for velopharyngeal dysfunction founded on objective considerations...
June 2017: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28538392/maculopapular-rash-after-intravitreal-injection-of-an-antivascular-endothelial-growth-factor-aflibercept-for-treating-age-related-macular-degeneration-a-case-report
#12
Norihiro Nagai, Mari Ibuki, Hajime Shinoda, Kaori Kameyama, Kazuo Tsubota, Yoko Ozawa
RATIONALE: Aflibercept, an anti-vascular endothelial growth factor (VEGF) drug, is used for treatment of colon cancer as well as retinal diseases, including wet age-related macular degeneration (AMD). It is injected into the vitreous cavity of eyes for treatment of AMD. Although vascular suppression-including cardiovascular events-and local infection related to the injection procedure are well-known potential adverse events, pathological immune responses after intravitreal aflibercept (IVA) injection have not been described...
May 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28535667/involvement-of-a-gr2a-expressing-drosophila-pharyngeal-gustatory-receptor-neuron-in-regulation-of-aversion-to-high-salt-foods
#13
Haein Kim, Yong Taek Jeong, Min Sung Choi, Jaekyun Choi, Seok Jun Moon, Jae Young Kwon
Regulation of feeding is essential for animal survival. The pharyngeal sense organs can act as a second checkpoint of food quality, due to their position between external taste organs such as the labellum which initially assess food quality, and the digestive tract. Growing evidence provides support that the pharyngeal sensory neurons regulate feeding, but much is still unknown. We found that a pair of gustatory receptor neurons in the LSO, a Drosophila adult pharyngeal organ which expresses four gustatory receptors, is involved in feeding inhibition in response to high concentrations of sodium ions...
May 2, 2017: Molecules and Cells
https://www.readbyqxmd.com/read/28535007/protective-effect-of-salvia-miltiorrhiza-bunge-on-5-fluorouracil-induced-oral-mucositis
#14
Do Rim Kim, Jinsung Kim, Ja Young Oh, Ha Young Kim, Young Joo Kim, Mun Seog Chang
Oral mucositis is a common side-effect caused by chemotherapy or radiotherapy occurring in the majority of cancer patients and is characterized by inflammation and ulcers in the oral mucosa. In the present study, we examined the protective effects of Salvia miltiorrhiza Bunge (SM) on oral mucositis induced by 5-fluorouracil (5-FU) in human pharyngeal cells and golden Syrian hamsters. We investigated the proliferation and antioxidant abilities of SM using MTT, 2-diphenyl-1-picrylhydrazyl (DPPH) and reactive oxygen species (ROS) assays in vitro...
May 23, 2017: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/28534319/case-report-human-papilloma-virus-type-120-related-papillomatosis-mimicking-laryngeal-carcinoma
#15
Valeria Belvisi, Salvatore Martellucci, Anna Rosa Garbuglia, Cosmo Del Borgo, Stanislao Martellucci, Andrea Baiocchini, Anna Maria Manicone, Oreste Bagni, Claudio Maria Mastroianni, Andrea Gallo
INTRODUCTION: The relationship between human papilloma virus (HPV) and upper respiratory tract pathology was better understood in recent years and represents now an issue of particular interest in carcinogenesis and in immunocompromised host. We describe a case in which a rare genotype HPV-related papillomatosis mimics laryngeal carcinoma in an immunocompromised host. METHODS: A 54-year-old woman with a history of HIV-HCV coinfection and anal and laryngeal cancer successfully treated some years before was hospitalized for severe dyspnea, cough and dysphagia...
May 22, 2017: Infection
https://www.readbyqxmd.com/read/28531866/bilateral-peritonsillar-abscess-a-case-report-and-pertinent-literature-review
#16
Ibrahim AlAwadh, Turki Aldrees, Saleh AlQaryan, Sami Alharethy, Hassan AlShehri
INTRODUCTION: The peritonsillar space is defined as the area between the palatine tonsillar capsule medially and the superior pharyngeal constrictor muscle laterally. Unilateral peritonsillar abscess (PTA) is more common than the bilateral condition. To the best of our knowledge, only 13 cases of bilateral PTA have been reported worldwide; this is the first case reported from Saudi Arabia. PRESENTATION OF CASE: We present a case involving a 16-year-old boy who presented to the emergency department with a5-day history of sore throat, dysphagia, trismus, drooling, and a muffled "hot-potato" voice, but with no symptoms of airway compromise...
May 15, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28530472/telomerase-expression-in-medaka-oryzias-melastigma-pharyngeal-teeth
#17
W H Tan, P E Witten, C Winkler, D W T Au, A Huysseune
Nonmammalian vertebrates have the capacity of lifelong tooth replacement. In all vertebrates, tooth formation requires contact and interaction between the oral or pharyngeal epithelium and the underlying mesenchyme. To secure lifelong replacement, the presence of odontogenic stem cells has been postulated, particularly in the epithelial compartment. This study uses an advanced teleost fish species, the marine medaka Oryzias melastigma, a close relative to Oryzias latipes, to examine the expression and distribution of telomerase reverse transcriptase (Tert), the catalytic unit of telomerase, in developing pharyngeal teeth and to relate these data to the proliferative activity of the cells...
June 2017: Journal of Dental Research
https://www.readbyqxmd.com/read/28528647/transition-metal-homeostasis-in-streptococcus-pyogenes-and-streptococcus-pneumoniae
#18
Andrew G Turner, Cheryl-Lynn Y Ong, Mark J Walker, Karrera Y Djoko, Alastair G McEwan
Trace metals such as Fe, Mn, Zn and Cu are essential for various biological functions including proper innate immune function. The host immune system has complicated and coordinated mechanisms in place to either starve and/or overload invading pathogens with various metals to combat the infection. Here, we discuss the roles of Fe, Mn and Zn in terms of nutritional immunity, and also the roles of Cu and Zn in metal overload in relation to the physiology and pathogenesis of two human streptococcal species, Streptococcus pneumoniae and Streptococcus pyogenes...
2017: Advances in Microbial Physiology
https://www.readbyqxmd.com/read/28528491/high-resolution-manometry-evaluation-of-pressures-at-the-pharyngo-upper-esophageal-area-in-patients-with-oropharyngeal-dysphagia-due-to-vagal-paralysis
#19
Bruno Rezende Pinna, Fernando A M Herbella, Noemi de Biase, Thays C G Vaiano, Marco G Patti
The motility of the pharynx, upper esophageal sphincter (UES), and proximal esophagus in patients with oropharyngeal dysphagia is still not entirely understood. High-resolution manometry (HRM) was recently added to the armamentarium for the study of this area. This study aims to describe HRM findings in patients with vagal paralysis. Sixteen patients (mean age 54 years, 69% females) with oropharyngeal dysphagia due to unilateral vagal paralysis were prospectively studied. All patients underwent HRM. Motility of the UES and at the topography of the velopharynx and epiglottis were recorded...
May 20, 2017: Dysphagia
https://www.readbyqxmd.com/read/28527023/-high-resolution-manometry-of-pharyngeal-swallowing-dynamics
#20
REVIEW
M Jungheim, M Ptok
BACKGROUND: To transport a bolus from the mouth into the stomach, regular contraction of the pharyngeal muscles and a coordinated function of the upper esophageal sphincter (UES) are necessary. The muscle contraction generates intraluminal pressure, which pushes the bolus continuously forward. In contrast to imaging studies, manometric methods enable assessment of intraluminal pressure buildup and the function of the muscles involved. These methods were initially established for the esophagus and have been used increasingly in the pharynx for 7-8 years...
May 19, 2017: HNO
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