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https://www.readbyqxmd.com/read/28925723/expression-patterns-of-members-of-the-isocitrate-dehydrogenase-gene-family-in-murine-inner-ear
#1
Y-R Kim, K-H Kim, S Lee, S-K Oh, J-W Park, K-Y Lee, J-I Baek, U-K Kim
Age-related hearing loss (ARHL) is characterized by an age-dependent decline of auditory function characterized by with loss of sensory hair cells, spiral ganglion neurons, and stria vascularis (SV) cells in the cochlea of the inner ear. Aging and age-related diseases result from accumulated oxidative damage caused by reactive oxygen species (ROS) generated by mitochondria. The isocitrate dehydrogenase (IDH) family includes three enzymes in human cells: IDH1, IDH2, and IDH3. Although all three enzymes catalyze the same enzymatic reaction, that is, oxidative decarboxylation of isocitrate to produce α-ketoglutarate, each IDH enzyme has unique features...
September 19, 2017: Biotechnic & Histochemistry: Official Publication of the Biological Stain Commission
https://www.readbyqxmd.com/read/28921909/first-natural-endocranial-cast-of-a-fossil-snake-cretaceous-of-patagonia-argentina
#2
Laura N Triviño, Adriana M Albino, María T Dozo, Jorge D Williams
In this study, we describe a natural endocranial cast included in a partially preserved medium-sized skull of the Upper Cretaceous South American snake Dinilysia patagonica. The endocast is composed of sedimentary filling of the cranial cavity in which the posterior brain, the vessels, the cranial nerves, and the inner ear surrounded by delicate semicircular canals, are represented. It is simple in form, with little differentiation between the three main areas (Forebrain, Midbrain and Hindbrain), and without flexures...
September 16, 2017: Anatomical Record: Advances in Integrative Anatomy and Evolutionary Biology
https://www.readbyqxmd.com/read/28917968/the-effect-of-fennel-essential-oil-in-combination-with-antibiotics-on-staphylococcus-aureus-strains-isolated-from-carriers
#3
Paweł Kwiatkowski, Magdalena Mnichowska-Polanowska, Agata Pruss, Helena Masiuk, Małgorzata Dzięcioł, Stefania Giedrys-Kalemba, Monika Sienkiewicz
An increase in the number of staphylococcal infections and carriers among medical staff has forced us to seek more and more effective antibacterial agents. Bacteria from the Staphylococcus genus possessing different mechanisms of resistance are the cause of nosocomial infections. The objective of our investigations was susceptibility of S. aureus strains isolated from nasal vestibule of medical students to fennel essential oil. The GC-MS analysis of fennel essential oil revealed eleven constituents among which a majority of trans-anethole (80%) was found...
September 13, 2017: Burns: Journal of the International Society for Burn Injuries
https://www.readbyqxmd.com/read/28914673/nodular-hyperplasia-of-the-bartholin-gland-a-benign-mimicker-of-aggressive-angiomyxoma-a-case-series-and-literature-review
#4
Yun-An Tseng, W Dwayne Lawrence, Shahrzad E Slater
Nodular hyperplasia (NH) of the Bartholin gland is an exceedingly rare benign solid lesion of the female genital tract that can mimic the Bartholin gland cyst clinically. The histologic criteria for NH were established in 1998 by Koenig and Tavassoli. In this case series, we describe 4 cases of NH from Women and Infants Hospital in Rhode Island. All cases have microscopic features of lobular proliferation of acini and inspissated mucin. One case especially has extensive mucin extravasation mimicking an aggressive angiomyxoma...
September 13, 2017: International Journal of Gynecological Pathology
https://www.readbyqxmd.com/read/28905417/investigating-the-structural-dynamics-of-the-piezo1-channel-activation-and-inactivation-by-coarse-grained-modeling
#5
Wenjun Zheng, Frederick Sachs
The PIEZO channels, a family of mechanosensitive channels in vertebrates, feature a fast activation by mechanical stimuli (e.g., membrane tension) followed by a slower inactivation. Although a medium-resolution structure of the trimeric form of PIEZO1 was solved by cryo-electron microscopy (cryo-EM), key structural changes responsible for the channel activation and inactivation are still unknown. Toward decrypting the structural mechanism of the PIEZO1 activation and inactivation, we performed systematic coarse-grained modeling using an elastic network model and related modeling/analysis tools (i...
September 14, 2017: Proteins
https://www.readbyqxmd.com/read/28891595/the-effect-of-bolus-volume-on-laryngeal-closure-and-ues-opening-in-swallowing-kinematic-analysis-using-320-row-area-detector-ct-study
#6
Seiko Shibata, Yoko Inamoto, Eiichi Saitoh, Hitoshi Kagaya, Yoichiro Aoyagi, Kikuo Ota, Ryoko Akahori, Naoko Fujii, Jeffrey B Palmer, Marlis Gonzalez Fernandez
This study investigated the effects of three different volumes of honey-thick liquid on the temporal characteristics of swallowing. Twenty six healthy subjects (15 males, 11 females) underwent 320-Row Area Detector CT scan while swallowing 3, 10, and 20ml of honey-thick liquid barium. Three-dimensional images were created at 10 images/s. Kinematic events involving six structures (velopharynx, hyoid bone, epiglottis, laryngeal vestibule (LV), true vocal cords (TVC), upper esophageal sphincter (UES)) and timing of bolus movement were timed using frame by frame analysis...
September 11, 2017: Journal of Oral Rehabilitation
https://www.readbyqxmd.com/read/28877577/a-case-of-pentastomiasis-at-the-left-maxilla-bone-in-a-patient-with-thyroid-cancer
#7
Eunae Sandra Cho, Seung Wook Jung, Hwi-Dong Jung, In Yong Lee, Tai-Soon Yong, Su Jin Jeong, Hyun Sil Kim
Pentastomiasis, a zoonotic parasite infection, is typically found in the respiratory tract and viscera of the host, including humans. Here, we report for the first time an extremely rare case of intraosseous pentastomiasis in the human maxilla suffering from medication related osteonecrosis of the jaw (MRONJ). A 55-year-old male had continuously visited the hospital for MRONJ which had primarily developed after bisphosphonate and anti-neoplastic administration for previous bone metastasis of medullary thyroid cancer...
August 2017: Korean Journal of Parasitology
https://www.readbyqxmd.com/read/28872738/chronic-post-stroke-oropharyngeal-dysphagia-is-associated-with-impaired-cortical-activation-to-pharyngeal-sensory-inputs
#8
C Cabib, O Ortega, N Vilardell, L Mundet, P Clavé, L Rofes
BACKGROUND AND PURPOSE: The role of afferent sensory pathways in the pathophysiology of post-stroke oropharyngeal dysphagia is not known. We hypothesized that patients with chronic post-stroke dysphagia (PSD) would show impaired sensory cortical activation in the ipsilesional hemisphere. METHODS: We studied 28 chronic unilateral post-stroke patients [17 PSD and 11 post-stroke non-dysphagic patients (PSnD)] and 11 age-matched healthy volunteers. Event-related sensory-evoked potentials to pharyngeal stimulation (pSEP) and sensory thresholds were assessed...
September 5, 2017: European Journal of Neurology: the Official Journal of the European Federation of Neurological Societies
https://www.readbyqxmd.com/read/28868616/kinematic-evaluation-of-penetration-and-aspiration-in-laryngeal-elevating-and-descending-periods
#9
Hideyuki Kiyohara, Kazuo Adachi, Yoshikazu Kikuchi, Ryutaro Uchi, Motohiro Sawatsubashi, Takashi Nakagawa
OBJECTIVES: It is important to evaluate swallowing movements by dividing them into periods of laryngeal closure and release. The purpose of this study was to evaluate penetration-aspiration (PA) according to human pathophysiology and to identify the factors for predicting PA. STUDY DESIGN: Case-control study. METHODS: Eighty-one patients with complaints of dysphagia caused by various etiologies were enrolled in this study. Videofluoroscopic swallowing studies were conducted, and the spatial and temporal factors were analyzed by computer-assisted motion analysis...
September 4, 2017: Laryngoscope
https://www.readbyqxmd.com/read/28856075/clinical-anatomy-of-the-frenulum-of-the-oral-vestibule
#10
Joe Iwanaga, Naoshi Takeuchi, Rod J Oskouian, R Shane Tubbs
Introduction The frenula of the oral vestibule include the labial and buccal frenula. Abnormal labial and buccal frenula can affect facial esthetics and oral cavity function by retracting the gingival margin, creating a median diastema, and limiting lip movement. Because of the lack of information on these structures, we aimed to clarify their anatomy.  Methods A total of 34 sides from 17 fresh frozen cadaveric Caucasian heads were used in the present study. The specimens were derived from 11 male and 6 female adult cadavers...
June 29, 2017: Curēus
https://www.readbyqxmd.com/read/28852163/expression-and-purification-of-the-pain-receptor-trpv1-for-spectroscopic-analysis
#11
Phanindra Velisetty, Richard A Stein, Francisco J Sierra-Valdez, Valeria Vásquez, Julio F Cordero-Morales
The transient receptor potential vanilloid 1 (TRPV1) channel is an essential component of the cellular mechanism through which noxious stimuli evoke pain. Functional and structural characterizations of TRPV1 shed light on vanilloid activation, yet the mechanisms for temperature and proton gating remain largely unknown. Spectroscopic approaches are needed to understand the mechanisms by which TRPV1 translates diverse stimuli into channel opening. Here, we have engineered a minimal cysteine-less rat TRPV1 construct (eTRPV1) that can be stably purified and reconstituted for spectroscopic studies...
August 29, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28828164/oral-manifestations-as-the-first-presenting-sign-of-crohn-s-disease-in-a-pediatric-patient
#12
Ashley Eckel, Dale Lee, Gail Deutsch, Anthony Maxin, Dolphine Oda
Crohn's disease (CD) is a chronic inflammatory disorder affecting the gastrointestinal (GI) tract. Although the GI tract is the primary site of involvement, many patients, particularly in pediatric cases, first present with non-intestinal manifestations, including oral lesions. Oral manifestations of CD in children occur in around 50-80% of cases, and about 30% of CD cases in children occur first in the mouth. Recognizing such oral lesions in the pediatric population, and requesting a biopsy, may expedite the diagnosis of CD...
July 2017: Journal of Clinical and Experimental Dentistry
https://www.readbyqxmd.com/read/28822242/mucosal-immunity-of-the-postpartum-bovine-genital-tract
#13
REVIEW
Dinesh Dadarwal, Colin Palmer, Philip Griebel
In this review, mucosal immune defense mechanisms used to control infections in the bovine genital tract (vestibule, vagina, cervix, uterus and oviduct) during the postpartum period are reviewed. Knowledge gaps are highlighted to emphasize the need for further investigations. Physical barriers to the entry of microbes include vulvar sealing, vestibule-vaginal constriction, a narrow cervical opening and the mucosal epithelium along with the overlying mucus layer. Genital tract mucosal epithelial cells recognize damage-associated molecular patterns and pathogen-associated molecular patterns and respond by secreting antimicrobial peptides and cytokines to recruit and activate immune cells...
August 10, 2017: Theriogenology
https://www.readbyqxmd.com/read/28819115/genome-wide-identification-and-expression-profiling-of-long-non-coding-rnas-in-auditory-and-vestibular-systems
#14
Kathy Ushakov, Tal Koffler-Brill, Aviv Rom, Kobi Perl, Igor Ulitsky, Karen B Avraham
Mammalian genomes encode multiple layers of regulation, including a class of RNA molecules known as long non-coding RNAs (lncRNAs). These are >200 nucleotides in length and similar to mRNAs, they are capped, polyadenylated, and spliced. In contrast to mRNAs, lncRNAs are less abundant and have higher tissue specificity, and have been linked to development, epigenetic processes, and disease. However, little is known about lncRNA function in the auditory and vestibular systems, or how they play a role in deafness and vestibular dysfunction...
August 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28801924/foramen-epiploicum-mesh-closure-femc-through-a-ventral-midline-laparotomy
#15
T van Bergen, A Rötting, P Wiemer, S Schauvliege, K Vanderperren, F Ugahary, A Martens
BACKGROUND: Preventive laparoscopic closure of the epiploic foramen (EF) has previously been described, but methods for EF closure during laparotomy for treatment of colic are lacking. OBJECTIVES: To describe the Foramen Epiploicum Mesh Closure (FEMC) technique through a ventral midline laparotomy in horses under general anaesthesia and its outcome. STUDY DESIGN: Terminal surgical experiment and in vivo study. METHODS: In a pilot study a standard ventral midline laparotomy was performed under general anaesthesia in 10 experimental horses and a three-dimensional expandable diabolo-shaped mesh construct was manually introduced through the EF into the omental vestibule...
August 12, 2017: Equine Veterinary Journal
https://www.readbyqxmd.com/read/28796987/evaluation-of-periodontal-tissues-in-growing-patients-with-bilateral-cleft-lip-and-palate-a-pilot-study
#16
Beata Wyrębek, Dorota Cudziło, Paweł Plakwicz
AIM: To evaluate the periodontal status, mucogingival parameters and oral hygiene in growing patients with bilateral cleft lip and palate. MATERIAL AND METHODS: Assessment was performed in 15 patients aged 6 to 18 years with a bilateral cleft. Records included probing pocket depth, clinical attachment level, keratinized gingiva, recession, vestibule depth, biotype, type of fraena, dental plaque and bleeding. RESULTS: The mean scores of pocket depth were: 1...
2017: Developmental Period Medicine
https://www.readbyqxmd.com/read/28781154/oral-administration-of-geranylgeranylacetone-to-protect-vestibular-hair-cells
#17
Shinpei Nagato, Kazuma Sugahara, Yoshinobu Hirose, Yousuke Takemoto, Makoto Hashimoto, Hironori Fujii, Hiroshi Yamashita
OBJECTIVE: We recently reported that the heat shock response played a major role in the protection of hair cells against stress. Oral administration of the heat shock inducer, geranylgeranylacetone (GGA) protected hair cells against intense noise. In our present study, we investigated the effect of GGA on vestibular hair cell death induced by an aminoglycoside. METHODS: We used CBA/N mice aged 4-6 weeks. The mice were divided into two groups, GGA and control. Mice in the GGA group were fed a diet containing GGA (0...
August 3, 2017: Auris, Nasus, Larynx
https://www.readbyqxmd.com/read/28780999/nasal-vestibulitis-etiology-risk-factors-and-clinical-characteristics-a-retrospective-study-of-118-cases
#18
Noga Lipschitz, Arkadi Yakirevitch, Doron Sagiv, Lela Migirov, Yoav P Talmi, Michael Wolf, Eran E Alon
BACKGROUND: Nasal vestibulitis (NV) is a common infection; however, scant data is available in the literature as it pertains to NV. We aim to describe the clinical characteristics of NV in respect to its potential complications. METHODS: A retrospective chart review of 118 NV cases admitted to a tertiary medical center between 2008 and 2015. RESULTS: Identified risk factors for NV included nasal hair plucking (n=15, 14.41%), nose blowing (n=10, 9...
June 30, 2017: Diagnostic Microbiology and Infectious Disease
https://www.readbyqxmd.com/read/28780633/lvc-timing-in-infant-pig-swallowing-and-the-effect-of-safe-swallowing
#19
Andrew Gross, Jocelyn Ohlemacher, Rebecca German, Francois Gould
Recurrent laryngeal nerve (RLN) injury in neonates, a complication of head and neck surgeries, leads to increased aspiration risk and swallowing dysfunction. The severity of resulting sequelae range from morbidity, such as aspiration pneumonia, to mortality from infection and failure to thrive. The timing of airway protective events including laryngeal vestibule closure (LVC) is implicated in aspiration. We unilaterally transected the RLN in an infant pig model to observe changes in the timing of swallowing kinematics with lesion and aspiration...
August 5, 2017: Dysphagia
https://www.readbyqxmd.com/read/28747264/free-flap-surgical-correction-of-facial-deformity-after-anteromedial-maxillectomy
#20
Shunji Sarukawa, Hideaki Kamochi, Tadahide Noguchi, Ataru Sunaga, Hirokazu Uda, Yoshiyuki Mori, Hiroshi Nishino, Kotaro Yoshimura
Anteromedial maxillectomy is typically performed in conjunction with low-dose radiotherapy and intraarterial chemotherapy. In doing so, the extent of surgical defects is reduced. However, nasal deviation and oral incompetence may ensue, due to cicatricial contracture of wounds, and may be distressing to these patients. Herein, we report a series of eight free perforator flap procedures (anterolateral thigh [ALT] flap, 6; thoracodorsal artery perforator [TAP] flap, 2) used to correct such deformities. The TAP flap was combined with scapular tip [ST] osseous flap in patients with added zygomatic prominence defects...
September 2017: Journal of Cranio-maxillo-facial Surgery
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