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https://www.readbyqxmd.com/read/28223970/tet-c-gene-transfer-between-chlamydia-suis-strains-occurs-by-homologous-recombination-after-co-infection-implications-for-spread-of-tetracycline-resistance-among-chlamydiaceae
#1
Hanna Marti, Hoyon Kim, Sandeep J Joseph, Stacey Dojiri, Timothy D Read, Deborah Dean
Chlamydia suis is a swine pathogen that has also recently been found to cause zoonotic infections of the human eye, pharynx, and gastrointestinal tract. Many strains contain a tetracycline class C gene [tet(C)] cassette that confers tetracycline resistance. The cassette was likely originally acquired by horizontal gene transfer from a Gram-negative donor after the introduction of tetracycline into animal feed in the 1950s. Various research groups have described the capacity for different Chlamydia species to exchange DNA by homologous recombination...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28219778/identification-and-characterization-of-a-novel-multifunctional-placenta-specific-protein-8-in-dugesia-japonica
#2
Qiuxiang Pang, Lili Gao, Yun Bai, Hongkuan Deng, Yu Han, Wenjing Hu, Yanhui Zhang, Shanhang Yuan, Wenping Sun, Yiqian Lu, Xiufang Zhang, Baohua Liu, Bosheng Zhao
Placenta specific protein 8 (Plac8) has been well studied in vertebrates, yet little is known in invertebrates. In this study, a novel Plac8 from the planarian Dugesia japonica was identified and its functions in immune responses and development were characterized. Our results show that Djplac8 was expressed in the pharynx, epidermis and intestine of intact adult planarian. The expression of DjPlac8 increased significantly upon lipopolysaccharide (LPS) challenge, and inhibited the growth of the Gram-negative bacteria (Escherichia coli and Pseudomonas aeruginosa), suggesting the role of Plac8 in immune response...
February 17, 2017: Gene
https://www.readbyqxmd.com/read/28219168/-thyroid-adenoma-in-the-piriform-fossa-a-case-report-and-literature-review
#3
X T Huang, B Ma, M B Liu, Y Zhang, D L Huang, L Chen
Objective: To explore the clinical characteristics of case of thyroid adenoma in the piriform fossa, and review the literatures of the congentital thyroid gland abnormality. Methods: A 44-year-old male had foreign body feeling in his pharynx for 3 years. A mass in his left piriform fossa was detected by the clinical and imaging examination. Biopsy report that the mass was thyroid papillary carcinoma. The resection of tumor with partial back thyroid cartilage through lateral neck and pharyngeal approach was performed...
February 7, 2017: Zhonghua Er Bi Yan Hou Tou Jing Wai Ke za Zhi, Chinese Journal of Otorhinolaryngology Head and Neck Surgery
https://www.readbyqxmd.com/read/28215714/microbiological-effect-of-mupirocin-and-chlorhexidine-for-staphylococcus-aureus-decolonization-in-community-and-nursing-home-based-adults
#4
Mary-Claire Roghmann, Alison D Lydecker, Patricia Langenberg, Emmanuel F Mongodin, J Kristie Johnson
OBJECTIVE: To compare the presence of Staphylococcus aureus and pathogenic Gram-negative rods (GNR) in the anterior nares, posterior pharynx and three skin sites in community-based adults and nursing home-based adults before and after treatment with nasal mupirocin and topical chlorhexidine. METHODS: S. aureus-colonized adults were recruited from the community (n=26) and from nursing homes (n=8). Eligible participants were cultured for S. aureus and GNR during two study visits and then received intranasal mupirocin and topical chlorhexidine for 5days, with a 2-month follow-up period...
February 13, 2017: Diagnostic Microbiology and Infectious Disease
https://www.readbyqxmd.com/read/28215047/pharyngeal-swallowing-pressures-in-the-base-of-tongue-and-hypopharynx-regions-identified-with-three-dimensional-manometry
#5
Sarah P Rosen, Corinne A Jones, Timothy M McCulloch
OBJECTIVES: This study aims to use three-dimensional (3D) high-resolution manometry to identify circumferential pressure patterns generated within the asymmetrical base-of-tongue and hypopharynx regions of the pharynx during deglutition. STUDY DESIGN: Case series. METHODS: Radial pressures in the regions of interest were evaluated during swallowing events in 12 healthy subjects using 3D high-resolution manometry. RESULTS: Repeated measures analysis of variance revealed asymmetrical pharyngeal clearance pressures in the base-of-tongue and hypopharynx regions during swallowing...
February 19, 2017: Laryngoscope
https://www.readbyqxmd.com/read/28207995/impact-of-continuous-positive-airway-pressure-in-patients-with-obstructive-sleep-apnea-during-drug-induced-sleep-endoscopy
#6
Carlos Torre, Stanley Yung-Chuan Liu, Clete A Kushida, Vladimir Nekhendzy, Leh-Kiong Huon, Robson Capasso
OBJECTIVES: The primary objective of the study was to understand the differential impact of Continuous Positive Airway Pressure (CPAP) on the location, degree, and pattern of airway collapse in Obstructive Sleep Apnea (OSA) patients utilizing Drug Induced Sleep Endoscopy (DISE). STUDY DESIGN: Non-randomized trial. SETTING: University Medical Center. PARTICIPANTS: 15 consecutive OSA patients undergoing DISE. MAIN OUTCOMES AND MEASURES: The patterns of airway collapse were videorecorded at baseline and under differential application of nasal CPAP (nCPAP) at 5,10, and 15 cm H2 O...
February 16, 2017: Clinical Otolaryngology
https://www.readbyqxmd.com/read/28206871/swallowing-therapy-and-progressive-resistance-training-in-head-and-neck-cancer-patients-undergoing-radiotherapy-treatment-randomized-control-trial-protocol-and-preliminary-data
#7
Sara F Hajdú, Irene Wessel, Christoffer Johansen, Claus A Kristensen, Zahra T Kadkhoda, Christina C Plaschke, Susanne O Dalton
BACKGROUND: Head and neck cancer (HNC) patients are often challenged by treatment induced dysphagia and trismus. Traditionally, rehabilitation is initiated when loss of function has already occurred. There is increasing evidence that it is of benefit to patients to initiate an early rehabilitation process before and during treatment. HNC patients have a unique set of functional challenges such as pre- and post-treatment dysphagia, pain and weight loss. The aim of the trial is to investigate the effects of swallowing and mouth-opening exercises combined with progressive resistance training (PRT) during radiotherapy...
February 2017: Acta Oncologica
https://www.readbyqxmd.com/read/28205307/segmentation-of-organs-at-risks-in-head-and-neck-ct-images-using-convolutional-neural-networks
#8
Bulat Ibragimov, Lei Xing
PURPOSE: Accurate segmentation of organs-at-risks (OARs) is the key step for efficient planning of radiation therapy for head and neck (HaN) cancer treatment. In the work, we proposed the first deep learning-based algorithm, for segmentation of OARs in HaN CT images, and compared its performance against state-of-the-art automated segmentation algorithms, commercial software, and interobserver variability. METHODS: Convolutional neural networks (CNNs)-a concept from the field of deep learning-were used to study consistent intensity patterns of OARs from training CT images and to segment the OAR in a previously unseen test CT image...
February 2017: Medical Physics
https://www.readbyqxmd.com/read/28203194/accidental-ingestion-of-nasal-packing-gauze-during-endonasal-endoscopic-dacryocystorhinostomy-under-local-anesthesia-a-case-report
#9
Yoshiyuki Kitaguchi, Jacqueline Mupas-Uy, Yasuhiro Takahashi, Kazushige Ishida, Hirohiko Kakizaki
PURPOSE: To report a case of accidental ingestion of a nasal packing gauze during endonasal endoscopic dacryocystorhinostomy (en-DCR) under local anesthesia. CASE REPORT: A 66-year-old female patient underwent an en-DCR for a right acquired nasolacrimal duct obstruction. The surgery was performed in a supine position under local anesthesia. An X-ray detectable ribbon gauze soaked in 0.02% epinephrine was placed in the middle meatus to prevent blood and liquid from flowing into the pharynx...
January 2017: Case Reports in Ophthalmology
https://www.readbyqxmd.com/read/28198530/location-of-the-narrowest-area-of-the-pharynx-regarding-bmi-and-osa-severity
#10
Marta Krasny, Jarosław Wysocki, Monika Prus, Kazimierz Niemczyk
BACKGROUND: Among authors studying morphological determinants of the Obstructive Sleep Apnoea (OSA) controversies exist on the location of the narrowest area within the pharynx critical for development of obstruction. Those disagreements primarily revolve around differences between obese and nonobese OSA patients. Determination whether the location and size of the narrowest area within the pharynx differentiates the obese and nonobese OSA patients. MATERIALS AND METHODS: A population of 55 subjects was investigated after being diagnosed with OSA in the Polysomnography Laboratory of the Department and Clinic of Otolaryngology in the Medical University of Warsaw...
February 15, 2017: Folia Morphologica (Warsz)
https://www.readbyqxmd.com/read/28191496/lidocaine-spray-alone-is-similar-to-spray-plus-viscous-solution-for-pharyngeal-observation-during-transoral-endoscopy-a-clinical-randomized-trial
#11
Tomoyuki Hayashi, Yoshiro Asahina, Yohei Waseda, Kazuya Kitamura, Takashi Kagaya, Takuya Seike, Kazuhiro Okada, Yuki Inada, Hisashi Takabatake, Noriaki Orita, Yuko Yanase, Tatsuya Yamashita, Itasu Ninomiya, Kenichi Yoshimura, Shuichi Kaneko
Background and study aims It is important to examine the pharynx during upper gastrointestinal endoscopy. Pharyngeal anesthesia using topical lidocaine is generally used as pretreatment. In Japan, lidocaine viscous solution is the anesthetic of choice, but lidocaine spray is applied when the former is considered insufficient. However, the relationship between the extent of pharyngeal anesthesia and accuracy of observation is unclear. We compared the performance of lidocaine spray alone versus lidocaine spray combined with lidocaine viscous solution for pharyngeal observation during transoral endoscopy...
January 2017: Endoscopy International Open
https://www.readbyqxmd.com/read/28187630/sternaspidae-annelida-sedentaria-from-vietnam-with-description-of-three-new-species-and-clarification-of-some-morphological-features
#12
Anna E Zhadan, Alexander B Tzetlin, Sergio I Salazar-Vallejo
Five sternaspid species were found near Vietnam shores: Sternaspis britayevi sp. nov., S. costata von Marenzeller, 1879, S. nana sp. nov., S. papillosa sp. nov., and S. spinosa Sluiter 1882. Sternaspis britayevi is described from the shallow water in Vietnam inhabiting soft bottoms; it resembles S. spinosa described from Java and S. thorsoni Sendall & Salazar-Vallejo, 2013 described from the Persian Gulf, but differs in having a medially projected and markedly ribbed fan of the ventro-caudal shield and nearly parallel, distally widened and rounded branchial plates...
January 25, 2017: Zootaxa
https://www.readbyqxmd.com/read/28179887/association-between-laryngeal-airway-aperture-and-the-discharge-rates-of-genioglossus-motor-units
#13
Amy LaCross, Peter J Watson, E Fiona Bailey
We know very little about how muscles and motor units in one region of the upper airway are impacted by adjustments in an adjacent airway region. In this case, the focus is on regulation of the expiratory airstream by the larynx and how changes in laryngeal aperture impact muscle motor unit activities downstream in the pharynx. We selected sound production as a framework for study as it requires (i) sustained expiratory airflow, (ii) laryngeal airway regulation for production of whisper and voice, and (iii) pharyngeal airway regulation for production of different vowel sounds...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28178125/comprehensive-swallowing-exercises-to-treat-complicated-dysphagia-caused-by-esophageal-replacement-with-colon-a-case-report
#14
Li Jiang, Yujue Wang, Na Li, Weihong Qiu, Huixiang Wu, Jianshan Huo, Meng Dai, Yong Yu, Guifang Wan, Zulin Dou, Weiping Guo
INTRODUCTION: Surgical procedures for colonic replacement of the esophagus are most commonly associated with anastomotic stricture which cause dysphagia. In this report, we describe a rare case of a patient who demonstrated dysphagia resulting from an anastomotic stricture following esophageal replacement with the colon. All the treatments to dilate the anastomotic stricture were ineffective. To investigate the new treatment strategy for a case with complicated dysphagia, clinical dysphagia evaluations, functional oral intake scale (FOIS), videofluoroscopic swallowing study as well as high-resolution manometry were used to evaluate the swallowing function of the patient before and after treatments...
February 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28155855/evolution-of-shh-endoderm-enhancers-during-morphological-transition-from-ventral-lungs-to-dorsal-gas-bladder
#15
Tomoko Sagai, Takanori Amano, Akiteru Maeno, Tetsuaki Kimura, Masatoshi Nakamoto, Yusuke Takehana, Kiyoshi Naruse, Norihiro Okada, Hiroshi Kiyonari, Toshihiko Shiroishi
Shh signalling plays a crucial role for endoderm development. A Shh endoderm enhancer, MACS1, is well conserved across terrestrial animals with lungs. Here, we first show that eliminating mouse MACS1 causes severe defects in laryngeal development, indicating that MACS1-directed Shh signalling is indispensable for respiratory organogenesis. Extensive phylogenetic analyses revealed that MACS1 emerged prior to the divergence of cartilaginous and bony fishes, and even euteleost fishes have a MACS1 orthologue. Meanwhile, ray-finned fishes evolved a novel conserved non-coding sequence in the neighbouring region...
February 3, 2017: Nature Communications
https://www.readbyqxmd.com/read/28155703/numerical-study-of-the-effects-of-bronchial-structural-abnormalities-on-respiratory-flow-distribution
#16
Shen Yu, Jizhe Wang, Xiuzhen Sun, Yingxi Liu
BACKGROUND: The anatomical configurations of respiratory tract would be directly associated with their ventilatory function. It is necessary to fully understand the association between airway configurations and their functions as well as the interactions between different airway segments. In this study, we developed a respiratory airway model to investigate the effects of bronchial structural abnormalities on flow distribution in the bronchi and upper airway. METHODS: Derived from computed tomography (CT) scanner data, three-dimensional (3D) finite element (FE) models of healthy human respiratory tracts were developed with anatomically realistic configurations, including the nasal cavity, oral cavity, pharynx, larynx, trachea, and partial bronchi...
December 28, 2016: Biomedical Engineering Online
https://www.readbyqxmd.com/read/28154261/preparation-and-evaluation-of-pegylated-poly-l-ornithine-complex-as-a-novel-absorption-enhancer
#17
Yusuke Kamiya, Tsutomu Yamaki, Masaki Uchida, Tomomi Hatanaka, Mitsutoshi Kimura, Masahiko Ogihara, Yasunori Morimoto, Hideshi Natsume
Polycationic compounds, such as poly-L-arginine and poly-L-ornithine (PLO), enhance the nasal absorption of hydrophilic macromolecular drugs. However, the bio availability corresponding to the dose of these enhancers has not been obtained in an open system study, where an administered solution is transferred to the pharynx because they do not exhibit mucoadhesion/retention in the nasal cavity. In this study, we prepared PEGylated-poly-L-ornithine (PEG-PLO) and investigated the effects of PEGylation on in vitro adhesion/retention properties, permeation enhancement efficiency, and cytotoxicity...
2017: Biological & Pharmaceutical Bulletin
https://www.readbyqxmd.com/read/28148678/neisseria-gonorrhoeae-dna-bacterial-load-in-men-with-symptomatic-and-asymptomatic-gonococcal-urethritis
#18
David Priest, Jason J Ong, Eric P F Chow, Sepehr Tabrizi, Sam Phillips, Melanie Bissessor, Christopher K Fairley, Catriona S Bradshaw, Tim R H Read, Suzanne Garland, Marcus Chen
OBJECTIVE: Previous studies have quantified bacterial loads of Neisseria gonorrhoeae in the pharynx and rectum of men but not the urethra. We quantified the bacterial load of N. gonorrhoeae in men with symptomatic and asymptomatic urethral gonorrhoea infections. METHODS: Consecutive men diagnosed with urethral gonorrhoea by Aptima Combo 2 testing of urine at the Melbourne Sexual Health Centre between March and July 2016 were eligible for the study: symptomatic men with purulent urethral discharge and asymptomatic men with no urethral symptoms...
February 1, 2017: Sexually Transmitted Infections
https://www.readbyqxmd.com/read/28147382/-effect-of-bolus-volume-on-pharyngeal-swallowing-dynamics-evaluated-with-small-high-resolution-manometry-catheters
#19
Michael Jungheim, Johanna Kallusky, Martin Ptok
The bolus volume has a modulating effect on the swallowing dynamics, but previously reported adaptations of the pharyngeal function have been inconsistent. Therefore, the aim of this study was to comprehensively evaluate changes of pressure and time parameters in the pharynx and upper esophageal sphincter (UES) in relation to the swallowed bolus volume with high-resolution manometry (HRM). To examine the normal swallowing physiology, particularly thin HRM probes were used, which were expected to influence the investigated structures only minimally...
February 1, 2017: Laryngo- Rhino- Otologie
https://www.readbyqxmd.com/read/28144173/three-new-species-of-cratera-carbayo-et-al-2013-from-araucaria-forests-with-a-key-to-species-of-the-genus-platyhelminthes-continenticola
#20
Ilana Rossi, Ana Leal-Zanchet
Areas of Araucaria moist forest have been considered to constitute hotspots of land flatworm diversity, harbouring a high number of undescribed species. Herein we describe three new species of land flatworms of Cratera Carbayo et al., 2013 occurring in such type of forest in south Brazil. The three species are differentiated from their congeners mainly by their colour pattern, anatomy of the pharynx and prostatic vesicle, and details of the penis papilla and male atrium. An identification key to species of the genus in the Neotropical region is provided...
2017: ZooKeys
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