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https://www.readbyqxmd.com/read/28728007/direct-immune-detection-of-cortisol-by-chemiresistor-graphene-oxide-sensor
#1
Yo-Han Kim, Kyungmin Lee, Hunsang Jung, Hee Kyung Kang, Jihoon Jo, In-Kyu Park, Hyun Ho Lee
In this study, a biosensor to detect a stress biomarker of cortisol using cortisol monoclonal antibody (c-Mab) covalently immobilized on reduced graphene oxide (rGO) channel as electrical sensing element was demonstrated. Highly specific immune-recognition between the c-Mab and the cortisol was identified and characterized on a basis of resistance change at the rGO channel based chemiresistor sensor achieving the limit of detection of 10pg/mL (27.6 pM). In addition, cortisol concentrations of real human salivary sample and buffer solution of rat adrenal gland acute slices, which could secret the cortisol induced by adrenocorticotropic hormone (ACTH), were directly measured by the chemiresistor corresponding to the specific sensing of the cortisol...
July 11, 2017: Biosensors & Bioelectronics
https://www.readbyqxmd.com/read/28727172/immunohistochemical-expression-of-myb-in-salivary-gland-basal-cell-adenocarcinoma-and-basal-cell-adenoma
#2
Sydney L Rooney, Robert A Robinson
BACKGROUND: Basal cell predominant salivary gland neoplasms can be difficult to separate histologically. One of the most aggressive of basaloid salivary gland neoplasms is adenoid cystic carcinoma. MYB expression by immunohistochemistry has been documented in adenoid cystic carcinoma. Some investigators have suggested that using this expression can help in the establishing the diagnosis of adenoid cystic carcinoma. Utilizing tissue microarrays, we studied a group of basal cell adenocarcinomas and basal cell adenomas to determine: 1) if either tumor expressed MYB, and 2) the frequency of any expression in either...
July 20, 2017: Journal of Oral Pathology & Medicine
https://www.readbyqxmd.com/read/28725949/tubulointerstitial-nephritis-induced-hypophosphatemic-osteomalacia-in-sj%C3%A3-gren-s-syndrome-a-case-report-and-review-of-the-literature
#3
REVIEW
Yan Geng, Youlu Zhao, Zhuoli Zhang
Sjögren's syndrome (SS) is a chronic autoimmune inflammatory disease that typically affects the salivary and lacrimal glands. Renal involvement is relatively uncommon and may precede other complaints. Tubulointestitial nephritis (TIN) is the most common renal involvement in SS. Osteomalacia occurring as the first manifestation of renal tubular disorder due to SS is very rare. We report a 39-year-old male who presented with polydipsia, polyuria, and multiple bone pain. Bone density test showed severe osteoporosis, and laboratory findings suggested hypokalemia, hypophosphatemia, and vitamin D deficiency, which supported the diagnosis of hypophosphatemic osteomalacia...
July 20, 2017: Clinical Rheumatology
https://www.readbyqxmd.com/read/28725300/epstein-barr-virus-ebv-associated-epithelial-and-non-epithelial-lesions-of-the-oral-cavity
#4
REVIEW
Kentaro Kikuchi, Harumi Inoue, Yuji Miyazaki, Fumio Ide, Masaru Kojima, Kaoru Kusama
Epstein-Barr virus (EBV) is known to be associated with the development of malignant lymphoma and lymphoproliferative disorders (LPDs) in immunocompromised patients. EBV, a B-lymphotropic gamma-herpesvirus, causes infectious mononucleosis and oral hairy leukoplakia, as well as various pathological types of lymphoid malignancy. Furthermore, EBV is associated with epithelial malignancies such as nasopharyngeal carcinoma (NPC), salivary gland tumor, gastric carcinoma and breast carcinoma. In terms of oral disease, there have been several reports of EBV-related oral squamous cell carcinoma (OSCC) worldwide...
August 2017: Japanese Dental Science Review
https://www.readbyqxmd.com/read/28725198/3d-reconstruction-of-the-digestive-system-in-octopus-vulgaris-cuvier-1797-embryos-and-paralarvae-during-the-first-month-of-life
#5
Raquel Fernández-Gago, Martin Heß, Heidemarie Gensler, Francisco Rocha
Octopus vulgaris aquaculture is limited due to poor biological knowledge of the paralarval stages (e.g., digestive system functionality), their nutritional requirements (e.g., adequate live diet) and standardization of rearing techniques. These factors are important in explaining the high mortality rate observed in this developmental stage under culture conditions. For a better understanding of nutrition biology of this species, we investigated the 3D microanatomy of the digestive tract of the embryo and paralarvae during the first month of life...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28722578/study-of-the-salivary-glands-in-triatominae-hemiptera-reduviidae-triatominae-their-color-and-application-to-the-chagas-disease-vector-evolution
#6
Jader de Oliveira, Amanda Ravazi, Eder Dos Santos Souza, Felipe Ferraz Figueiredo Moreira, Cleber Galvão, João Aristeu da Rosa, Kaio Cesar Chaboli Alevi
Chagas disease is caused by Trypanosoma cruzi and transmitted by feces of a triatomine that has the habit of defecating during blood feeding. The salivary glands of triatomines are important to hematophagy because their saliva is rich in anticoagulant and hemolytic proteins. The salivary glands of some Rhodnius species analyzed are reddish due to the presence of nitrophorins (antihemostatic activity). The present study aimed to analyze the color pattern of the salivary glands of 67 triatomine species to evaluate whether the presence of nitrophorins is a synapomorphy of Rhodnius or the tribe Rhodniini, or if it is shared with triatomines of the tribes Triatomini and Cavernicolini...
July 10, 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/28722506/diffusion-weighted-magnetic-resonance-imaging-of-parotid-glands-before-and-after-abatacept-therapy-in-patients-with-sj%C3%A3-gren-s-syndrome-associated-with-rheumatoid-arthritis-utility-to-evaluate-and-predict-response-to-treatment
#7
Hiroyuki Takahashi, Hiroto Tsuboi, Masahiro Yokosawa, Hiromitsu Asashima, Tomoya Hirota, Yuya Kondo, Isao Matsumoto, Takayuki Sumida
OBJECTIVE: To compare parotid diffusion-weighted images (DWIs) taken before and after abatacept therapy in patients with Sjögren's syndrome (SS) associated with rheumatoid arthritis (RA) and to examine the utility in evaluation and prediction of response to therapy. METHODS: DWIs of the parotid glands taken at baseline and 52 weeks after initiation of abatacept were analyzed in nine SS patients with RA using relative standard deviation (RSD) of the entire glands and signal intensity ratio (SIR) within the residual parenchyma...
July 19, 2017: Modern Rheumatology
https://www.readbyqxmd.com/read/28721884/dosimetric-predictors-of-patient-reported-xerostomia-and-dysphagia-with-deintensified-chemoradiation-therapy-for-hpv-associated-oropharyngeal-squamous-cell-carcinoma
#8
Bhishamjit S Chera, David Fried, Alex Price, Robert J Amdur, William Mendenhall, Chiray Lu, Shiva Das, Nathan Sheets, Lawrence Marks, Panayiotis Mavroidis
PURPOSE/OBJECTIVE(S): To estimate the association between different dose-volume metrics of the salivary glands and pharyngeal constrictors with patient reported severity of xerostomia/dysphagia in the setting of deintensified chemoradiation therapy (CRT). METHODS AND MATERIALS: Forty-five patients were treated on a phase 2 study assessing the efficacy of deintensified CRT for favorable-risk, HPV-associated oropharyngeal squamous cell carcinoma. Patients received 60 Gy intensity modulated radiation therapy with concurrent weekly cisplatin (30 mg/m(2)), and reported the severity of their xerostomia/dysphagia (before and after treatment) using the patient-reported outcome version of the Common Terminology Criteria for Adverse Events (CTCAE) (PRO-CTCAE)...
August 1, 2017: International Journal of Radiation Oncology, Biology, Physics
https://www.readbyqxmd.com/read/28719468/etv6-gene-rearrangements-characterize-a-morphologically-distinct-subset-of-sinonasal-low-grade-non-intestinal-type-adenocarcinoma-a-novel-translocation-associated-carcinoma-restricted-to-the-sinonasal-tract
#9
Simon Andreasen, Alena Skálová, Abbas Agaimy, Justin A Bishop, Jan Laco, Ilmo Leivo, Alessandro Franchi, Stine R Larsen, Daiva Erentaite, Benedicte P Ulhøi, Christian von Buchwald, Linea C Melchior, Michal Michal, Katalin Kiss
Low-grade sinonasal adenocarcinomas (low-grade SNACs) of the sinonasal tract comprise a poorly characterized and histologically heterogeneous group of tumors. We describe three cases of a histologically distinct variant of low-grade SNAC characterized by ETV6 gene rearrangements. The patients included 2 women (aged 32 and 88 y) and a man (aged 75 y); all were initially treated with surgery alone. Follow-up ranged from 9 to 170 months with one patient having 2 local recurrences and none experiencing distant or regional metastases...
July 17, 2017: American Journal of Surgical Pathology
https://www.readbyqxmd.com/read/28719465/predictors-of-outcome-in-adenoid-cystic-carcinoma-of-salivary-glands-a-clinicopathologic-study-with-correlation-between-myb-fusion-and-protein-expression
#10
Bin Xu, Esther Drill, Allen Ho, Alan Ho, Lara Dunn, Carlos Nicolas Prieto-Granada, Timothy Chan, Ian Ganly, Ronald Ghossein, Nora Katabi
Adenoid cystic carcinoma (ACC) is the second most common salivary gland malignancy and it has a high rate of recurrences and a poor long-term prognosis. Our aim was to assess the prognostic factors in ACC and study MYB-NFIB fusion and MYB protein expression in a large retrospective cohort of 135 patients with a median follow-up of 6.3 years. The 5- and 10-year local recurrence-free survival (RFS) rate of 94% and 78%, 5- and 10-year distant metastasis survival rate of 77% and 58%, and 5- and 10-year RFS of 66% and 44%...
July 17, 2017: American Journal of Surgical Pathology
https://www.readbyqxmd.com/read/28718590/-novelties-in-ent-2016
#11
Francis Marchal
These novelties in ENT were selected among more than 15'000 abstracts in the 2016 literature, and dedicated to the practioner Guidelines of the American Academy of ORL will resume the attitude towards chronic otitis media, and reviews of hearing impairment and tinnitus are presented, as well as impact of the pneumoccal vaccine on otitis media. In rhinology, the flora of chronic rhinosinusitis and its non surgical treatments will be discussed, as well as epistaxis and malignant tumor series. 17 Diseases dignanosed only with exhaled air will be also reported...
March 8, 2017: Revue Médicale Suisse
https://www.readbyqxmd.com/read/28717299/giant-solitary-schwannoma-of-submandibular-salivary-gland-a-rare-entity
#12
Vishal Bansal, Pooja Aggarwal, Vijay Wadhwan, Avi Bansal, Sahil Kapoor, Manoj Yadav
Submandibular gland tumours, especially mesenchymal tumours, are extremely rare. Schwannoma of the salivary gland is a particularly rare form of an extracranial neurogenic tumor, of which ancient schwannoma is one of five variants. Since the first description, only a few ancient schwannomas have been reported in different locations in the head and neck region. In the submandibular gland it is very rare. This report presents a case of 26 year old male patient with an ancient schwannoma of the submandibular gland seems to be arising from parasympathetic fibers...
September 2017: Journal of Maxillofacial and Oral Surgery
https://www.readbyqxmd.com/read/28716719/metacyclic-vsg-expression-site-promoters-are-recognized-by-the-same-general-transcription-factor-that-is-required-for-rna-polymerase-i-transcription-of-bloodstream-expression-sites
#13
Nikolay G Kolev, Arthur Günzl, Christian Tschudi
Infectious metacyclic Trypanosoma brucei cells develop in the salivary glands of tsetse flies. A critical aspect of the developmental program leading to acquisition of infectivity is the synthesis of a variant surface glycoprotein (VSG) coat. Metacyclic VSG genes are transcribed from a set of specialized VSG expression sites (ESs) that differ from bloodstream VSG ESs by being monocistronic, being significantly shorter, lacking long stretches of 70-bp repeats, and having distinct promoter sequences. Both metacyclic and bloodstream VSG ESs are transcribed by the multifunctional T...
July 14, 2017: Molecular and Biochemical Parasitology
https://www.readbyqxmd.com/read/28715412/cell-fate-specification-in-the-lingual-epithelium-is-controlled-by-antagonistic-activities-of-sonic-hedgehog-and-retinoic-acid
#14
Maha El Shahawy, Claes-Göran Reibring, Cynthia L Neben, Kristina Hallberg, Pauline Marangoni, Brian D Harfe, Ophir D Klein, Anders Linde, Amel Gritli-Linde
The interaction between signaling pathways is a central question in the study of organogenesis. Using the developing murine tongue as a model, we uncovered unknown relationships between Sonic hedgehog (SHH) and retinoic acid (RA) signaling. Genetic loss of SHH signaling leads to enhanced RA activity subsequent to loss of SHH-dependent expression of Cyp26a1 and Cyp26c1. This causes a cell identity switch, prompting the epithelium of the tongue to form heterotopic minor salivary glands and to overproduce oversized taste buds...
July 17, 2017: PLoS Genetics
https://www.readbyqxmd.com/read/28715040/-taste-dysfunction-dysgeusia-and-radioiodine-therapy-of-thyroid-cancer-be-aware-of-side-effects-by-antidepressants-and-sedatives
#15
Markus Dietlein, Alexander Drzezga
In addition to xerostomia, taste dysfunction (hypo-, dysgeusia) is an independent side effect of radioiodine therapy of thyroid cancer. Hypogeusia results from damage of the small mucous salivary glands in the vicinity of the taste buds. Particularly in those patients, who are treated with drugs such as antidepressants or sedatives, taste dysfunction becomes frequently clinically symptomatic. If feasible, therapy regimens bearing a potential risk for taste dysfunction should be switched. Additional damage to taste function should be minimalized, including cessation of smoking, change of agents for dental hygiene, and change of toothpaste...
July 17, 2017: Nuklearmedizin. Nuclear Medicine
https://www.readbyqxmd.com/read/28714550/optimal-timing-and-frequency-of-bone-marrow-soup-therapy-for-functional-restoration-of-salivary-gland-injured-by-single-dose-or-fractionated-irradiation
#16
Dongdong Fang, Sixia Shang, Younan Liu, Mohammed Bakkar, Yoshinori Sumita, Jan Seuntjens, Simon D Tran
Injections of bone marrow (BM) cell extract, known as "BM Soup", was previously reported to mitigate ionizing radiation (IR) injury to salivary glands (SGs). However the optimal starting time and frequency to maintain BM Soup therapeutic efficacy remains unknown. This study tests the optimal starting time and frequency of BM Soup injections in mice radiated with either a single dose or fractionated dose. First, BM Soup treatment is started at 1, 3, or 7 weeks post-IR, while positive (non-IR) and negative (IR) control mice receive injections of saline (vehicle control)...
July 17, 2017: Journal of Tissue Engineering and Regenerative Medicine
https://www.readbyqxmd.com/read/28714528/salivary-duct-stenosis-short-term-symptom-outcomes-after-sialendoscopy-assisted-salivary-duct-surgery
#17
Elise A Delagnes, Melissa Zheng, Annick Aubin-Pouliot, Jolie L Chang, William R Ryan
OBJECTIVES: To prospectively assess short-term symptom change after sialendoscopy-assisted salivary duct surgery (SASDS) for salivary duct stenosis. STUDY DESIGN: Prospective cohort study. METHODS: Patients with obstructive sialadenitis from duct stenosis completed the 20-item Chronic Obstructive Sialadenitis Symptoms (COSS) Questionnaire (scored 0-100) prior to SASDS and 3 months postoperatively. RESULTS: Thirty glands in 19 patients with endoscopically confirmed salivary duct stenosis showed overall symptom improvement, with a mean COSS score reduction of 12...
July 17, 2017: Laryngoscope
https://www.readbyqxmd.com/read/28713751/parotid-duct-repair-with-intubation-tube-technical-note
#18
Muhammed Beşir Öztürk, Seda Asrufoğlu Barutca, Elif Seda Keskin, Bekir Atik
The parotid duct can be damaged in traumatic injuries and surgical interventions. Early diagnosis and treatment of a duct injury is of great importance because complications such as sialocele and salivary gland fistula may develop if the duct is not surgically repaired. We think the cuff of an intubation tube is an ideal material in parotid duct repair, because of its technical characteristics, easiness of availability, and low-cost. In this paper, we described the use of the cuff cannula of an intubation tube for the diagnosis and treatment of parotid duct laceration, as a low-cost and easy to access material readily available in every operating room...
January 2017: Annals of Maxillofacial Surgery
https://www.readbyqxmd.com/read/28712533/dose-volume-toxicity-modeling-for-de-intensified-chemo-radiation-therapy-for-hpv-positive-oropharynx-cancer
#19
Panayiotis Mavroidis, Alex Price, David Fried, Mark Kostich, Robert Amdur, William Mendenhall, Chihray Liu, Shiva Das, Lawrence B Marks, Bhishamjit Chera
BACKGROUND AND PURPOSE: The aim is to determine the radiobiological parameters of four popular normal tissue complication probability (NTCP) models that describe the dose-response relations of salivary glands and pharyngeal constrictors to the severity of patient reported xerostomia and dysphagia, respectively 6 and 12months post chemo-radiotherapy, furthermore, to evaluate the goodness-of-fit of the NTCP models for different combinations of glands and constrictors. MATERIAL AND METHODS: Forty-three patients were treated on a prospective multi-institutional phase II study (ClinicalTrials...
July 13, 2017: Radiotherapy and Oncology: Journal of the European Society for Therapeutic Radiology and Oncology
https://www.readbyqxmd.com/read/28711938/leptin-ob-r-pathway-promotes-il-4-secretion-from-b-lymphocytes-and-induces-salivary-gland-epithelial-cell-apoptosis-in-sj%C3%A3-gren-s-syndrome
#20
Ting Xu, Wen Xie, Yingchun Ma, Shiliang Zhou, Lu Zhang, Jinyun Chen, Mingyuan Cai, Rurong Sun, Peirong Zhang, Shaobo Yu, Zheng Xu, Wanlan Jiang, Min Wu
Sjögren's syndrome (SjS) is a chronic autoimmune epithelitis in which cell apoptosis promotes the formation of inflammatory lesions. We used immunohistochemistry and TUNEL to assay B cell infiltration and apoptosis in salivary gland tissue from 16-week-old NOD/LtJ mice with SjS. In co-cultures of primary salivary glandepithelial cells (SGECs) and spleen B cells, we assessed SGEC viability and apoptosis using CCK8 assays and flow cytometry. ELISAs were employed to assess cytokine levels in culture medium. Leptin protein, leptin receptor (OB-R), pro- and anti-apoptotic proteins, and Jak2/Stat3/ERK signaling molecules were analyzed using western blotting...
June 28, 2017: Oncotarget
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