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https://www.readbyqxmd.com/read/29790977/alpha-synuclein-aggregates-in-labial-salivary-glands-of-idiopathic-rapid-eye-movement-sleep-behavior-disorder
#1
Alx Iranzo, Sergi Borrego, Isabel Vilaseca, Carles Martí, Mónica Serradell, Raquel Sánchez-Valle, Gabor G Kovacs, Francesc Valldeoriola, Carles Gaig, Joan Santamaria, Eduard Tolosa, Ellen Gelpi
Study Objectives : To assess whether biopsy of the labial minor salivary glands safely detects phosphorylated alpha-synuclein (pAS) deposits in idiopathic REM sleep behavior disorder (IRBD), a condition that precedes the cardinal manifestations of synuclein disorders associated with Lewy type pathology, namely Parkinson disease (PD) and dementia with Lewy bodies (DLB). Methods: In a prospective study, labial biopsy of the minor salivary glands was performed in 62 IRBD patients, 13 PD and 10 DLB patients who were initially diagnosed with IRBD, and in 33 controls...
May 22, 2018: Sleep
https://www.readbyqxmd.com/read/29790791/age-associated-decrease-of-sialin-in-salivary-glands
#2
L Li, H Wang, L Hu, X Wu, B Zhao, Z Fan, C Zhang, J Wang, S Wang
Aging salivary glands are characterized by a reduced volume of acini, increased duct volume, decline in the rate of synthesis of proteins and their mRNA, and decreased saliva flow. Sialin is a versatile anion transporter that is highly expressed in salivary glands and may also participate in maintenance of salivary gland function. We investigated age-associated sialin expression in salivary glands. Submandibular glands of mice and human parotid gland were collected at different ages. Western blot and real-time reverse transcription-polymerase chain reaction were used to analyze the protein and mRNA expression levels of sialin, respectively...
May 23, 2018: Biotechnic & Histochemistry: Official Publication of the Biological Stain Commission
https://www.readbyqxmd.com/read/29790307/necrotising-sialometaplasia-a-diagnostic-perplexity-an-innocent-entity-to-malignant-masquerade
#3
Neeti Swarup, Meghanand T Nayak, Zoya Chowdhary, S Chandarani
Necrotising Sialometaplasia is a benign self limiting reactive condition of major and minor salivary glands, which can arouse suspicion for malignancy, clinically and histopathologically. Here, we report a case of 38-year-old female with a painful ulcer on the palate. The case enlightens the importance of clinicopathologic correlation and diligent follow up in diagnosis and management of the case.
May 2018: Journal of Experimental Therapeutics & Oncology
https://www.readbyqxmd.com/read/29789993/the-role-of-the-epithelial-to-mesenchymal-transition-emt-in-diseases-of-the-salivary-glands
#4
REVIEW
Margherita Sisto, Sabrina Lisi, Domenico Ribatti
The link between inflammatory microenvironment and cancer emerged in the last years as a decisive factor in the induction of the pathological epithelial-mesenchymal transition (EMT). The EMT induces changes of cell states converting the epithelial cells to mesenchymal cells when this program is fully executed and EMT has emerged as a central driver of tumor malignancy. Cellular pathways activated by chronic inflammation brought about by chronic infections, by immune-mediated diseases, or by dysregulated wound healing at sites of repetitive tissue injury, constitute risk factors or initial cell transformation and for cancer progression...
May 23, 2018: Histochemistry and Cell Biology
https://www.readbyqxmd.com/read/29789121/aire-is-not-essential-for-regulating-neuroinflammatory-disease-in-mice-transgenic-for-human-autoimmune-diseases-associated-mhc-class-ii-genes-hla-dr2b-and-hla-dr4
#5
Saisha A Nalawade, Niannian Ji, Itay Raphael, Andrew Pratt, Ellen Kraig, Thomas G Forsthuber
The human autoimmune disease-associated HLA alleles HLA-DR2b (DRB1*1501) and HLA-DR4 (DRB1*0401) are strongly linked to increased susceptibility for multiple sclerosis (MS) and rheumatoid arthritis (RA), respectively. The underlying mechanisms are not fully understood, but these MHC alleles may shape the repertoire of pathogenic T cells via central tolerance. The transcription factor autoimmune regulator (AIRE) promotes central T cell tolerance via ectopic expression of tissue-specific antigens (TSAs). Aire deficiency in humans causes autoimmune polyendocrinopathy syndrome type 1 (APS1), and Aire knockout mice (Aire-/- ) develop spontaneous autoimmune pathology characterized by multi-organ lymphocytic infiltrates...
May 14, 2018: Cellular Immunology
https://www.readbyqxmd.com/read/29788052/fast-evolution-and-lineage-specific-gene-family-expansions-of-aphid-salivary-effectors-driven-by-interactions-with-host-plants
#6
Hélène Boulain, Fabrice Legeai, Endrick Guy, Stéphanie Morlière, Nadine E Douglas, Jonghee Oh, Marimuthu Murugan, Michael Smith, Julie Jaquiéry, Jean Peccoud, Frank F White, James C Carolan, Jean-Christophe Simon, Akiko Sugio
Effector proteins play crucial roles in plant-parasite interactions by suppressing plant defenses and hijacking plant physiological responses to facilitate parasite invasion and propagation. Although effector proteins have been characterized in many microbial plant pathogens, their nature and role in adaptation to host plants are largely unknown in insect herbivores. Aphids rely on salivary effector proteins injected into the host plants to promote phloem sap uptake. Therefore, gaining insight into the repertoire and evolution of aphid effectors is key to unveiling the mechanisms responsible for aphid virulence and host plant specialization...
May 18, 2018: Genome Biology and Evolution
https://www.readbyqxmd.com/read/29787840/cutaneous-features-and-diagnosis-of-primary-sjogren-s-syndrome-an-update-and-review
#7
REVIEW
Preeti Jhorar, Kristin Torre, Jun Lu
Sjogren's syndrome (SS) is an autoimmune connective tissue disorder (CTD) which principally affects the lacrimal and salivary glands. Although SS is one of the three most common autoimmune CTDs alongside systemic lupus erythematosus (SLE) and progressive systemic sclerosis, it is the least researched CTD overall. SS poses a particular diagnostic challenge because it shares multiple clinical and immunologic features with other CTDs. However, there are some characteristic cutaneous clinical features that can precede the well-known sicca symptoms by years...
May 19, 2018: Journal of the American Academy of Dermatology
https://www.readbyqxmd.com/read/29786576/the-histological-and-electron-microscopic-study-of-the-parotid-salivary-gland-in-dehydrated-rats-of-different-ages
#8
Denys P Biletskyy, Oleg A Ustiansky, Olena S Maksymova, Pavel A Moskalenko, Alexey A Tymoshenko, Anna S Degtyarenko, Viktoriia Yu Harbuzova, Yevhen I Dubovyk, Andrii P Voznyi, Gennadii F Tkach
OBJECTIVE: Introduction: Water-salt metabolism disorders is one of the main factor of salivary gland pathology development. The aim: To study the morphological structure of the parotid salivary gland of young, mature and old rats at micro- and ultrastructural levels under water deprivation. PATIENTS AND METHODS: Materials and methods: The experiment was carried out on thirty six laboratory male rats of different ages (young, mature and old). The rats of the control group received normal volume of drinking water...
2018: Wiadomości Lekarskie: Organ Polskiego Towarzystwa Lekarskiego
https://www.readbyqxmd.com/read/29786575/spatial-organization-of-the-excretory-ducts-and-sections-of-microcirculatory-blood-flow-of-the-labial-salivary-glands-in-older-adults
#9
Volodymyr H Hryn, Tamara F Deineha, Аndrij V Piliuhin, Anna V Lavrenko, Dmytro O Lavrenko
OBJECTIVE: Introduction: Salivary glands have a significant impact on the state of the homeostasis of the human body, oral cavity in particular, sensitively responding to pathological processes. The reactivity of the salivary glands in response to pathological processes that are organically linked to morphology and functions of the organ's structures, and particularly the excretory ducts of the glands and their microcirculatory blood flow, is one of the problems which have not been solved to date...
2018: Wiadomości Lekarskie: Organ Polskiego Towarzystwa Lekarskiego
https://www.readbyqxmd.com/read/29785628/gut-associated-bacteria-of-helicoverpa-zea-indirectly-trigger-plant-defenses-in-maize
#10
Jie Wang, Mingyu Yang, Yuanyuan Song, Flor E Acevedo, Kelli Hoover, Rensen Zeng, Gary W Felton
Insect-associated microbes can contribute to the physiological and ecological functions of insects. Despite a few examples in beetles and piercing-sucking insects, the varied mechanisms of how insect-associated bacteria mediate plant-insect interactions are still not fully understood. The polyphagous herbivore Helicoverpa zea is a major agricultural pest that harbors certain microbes in their digestive systems. Enterobacter ludwigii is one of the gut-associated bacteria identified from field-collected caterpillars, and it has been shown to indirectly induce defenses in the dicot plant tomato by triggering the biosynthesis of salivary elicitors, but there are no clear mechanisms to show how gut microbes alter these salivary cues and how a different host plant responds to these inducible elicitors...
May 22, 2018: Journal of Chemical Ecology
https://www.readbyqxmd.com/read/29785551/salivary-duct-carcinoma-evaluation-of-treatment-and-outcome-in-a-tertiary-referral-institute
#11
Ann-Jean C C Beck, Peter J F M Lohuis, Abrahim Al-Mamgani, Laura A Smit, Willem M C Klop
PURPOSE: The aggressive behavior of salivary duct carcinoma (SDC) necessitates an aggressive treatment strategy, including surgery and radiotherapy (RT). We evaluated practice patterns and treatment outcomes in patients with SDC treated in our Institute. METHODS: Patients with SDC of the parotid or submandibular gland treated with curative intention in our Institute from 1998 until 2016 were reviewed. Our diagnostic workup and treatment strategy were evaluated together with treatment outcomes...
May 21, 2018: European Archives of Oto-rhino-laryngology
https://www.readbyqxmd.com/read/29784466/knowledge-gaps-persist-and-hinder-progress-in-eliminating-mumps
#12
REVIEW
R Ramanathan, E A Voigt, R B Kennedy, G A Poland
Mumps, a common childhood disease in the pre-vaccine era that causes swelling of the parotid salivary glands, can lead to orchitis, viral meningitis, and sensorineural deafness. While the incidence of disease decreased dramatically after the vaccine was added to standard vaccination schedules, the disease has made a substantial resurgence in recent years. As a result, it becomes critical to examine the factors involved in recurring outbreaks. Although low and incomplete vaccination coverage may be a key reason, it does not fully explain the issue due to the high rate of occurrence in populations with high vaccination coverage rates...
May 18, 2018: Vaccine
https://www.readbyqxmd.com/read/29784082/novel-transgenic-pigs-with-enhanced-growth-and-reduced-environmental-impact
#13
Xianwei Zhang, Zicong Li, Huaqiang Yang, Dewu Liu, Gengyuan Cai, Guoling Li, Jianxin Mo, Dehua Wang, Cuili Zhong, Haoqiang Wang, Yue Sun, Junsong Shi, Enqin Zheng, Fanming Meng, Mao Zhang, Xiaoyan He, Rong Zhou, Jian Zhang, Miaorong Huang, Ran Zhang, Ning Li, Mingzhe Fan, Jinzeng Yang, Zhenfang Wu
In pig production, inefficient feed digestion causes excessive nutrients such as phosphorus and nitrogen to be released to the environment. To address the issue of environmental emissions, we established transgenic pigs harboring a single-copy quad-cistronic transgene and simultaneously expressing three microbial enzymes, β-glucanase, xylanase, and phytase in the salivary glands. All the transgenic enzymes were successfully expressed, and the digestion of non-starch polysaccharides (NSPs) and phytate in the feedstuff was enhanced...
May 22, 2018: ELife
https://www.readbyqxmd.com/read/29782810/chloride-and-sodium-ion-concentrations-in-saliva-and-sweat-as-a-method-to-diagnose-cystic-fibrosis
#14
Aline Cristina Gonçalves, Fernando Augusto Lima Marson, Regina Maria Holanda Mendonça, Carmen Sílvia Bertuzzo, Ilma Aparecida Paschoal, José Dirceu Ribeiro, Antônio Fernando Ribeiro, Carlos Emílio Levy
OBJECTIVE: Cystic fibrosis diagnosis is dependent on the chloride ion concentration in the sweat test (≥60mEq/mL - recognized as the gold standard indicator for cystic fibrosis diagnosis). Moreover, the salivary glands express the CFTR protein in the same manner as sweat glands. Given this context, the objective was to verify the correlation of saliva chloride concentration (SaCl) and sweat chloride concentration (SwCl), and between saliva sodium concentration (SaNa) and sweat sodium concentration (SwNa), in patients with cystic fibrosis and healthy control subjects, as a tool for cystic fibrosis diagnosis...
May 18, 2018: Jornal de Pediatria
https://www.readbyqxmd.com/read/29781999/preparation-of-murine-submandibular-salivary-gland-for-upright-intravital-microscopy
#15
Xenia Ficht, Flavian Thelen, Bettina Stolp, Jens V Stein
The submandibular salivary gland (SMG) is one of the three major salivary glands, and is of interest for many different fields of biological research, including cell biology, oncology, dentistry, and immunology. The SMG is an exocrine gland comprised of secretory epithelial cells, myofibroblasts, endothelial cells, nerves, and extracellular matrix. Dynamic cellular processes in the rat and mouse SMG have previously been imaged, mostly using inverted multi-photon microscope systems. Here, we describe a straightforward protocol for the surgical preparation and stabilization of the murine SMG in anesthetized mice for in vivo imaging with upright multi-photon microscope systems...
May 7, 2018: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/29781993/murine-salivary-functional-assessment-via-pilocarpine-stimulation-following-fractionated-radiation
#16
Jomy J Varghese, Isaac L Schmale, Mollie Eva Hansen, Shawn D Newlands, Danielle S W Benoit, Catherine E Ovitt
Hyposalivation is commonly observed in the autoimmune reaction of Sjögren's syndrome or following radiation injury to the major salivary glands. In these cases, questions remain regarding disease pathogenesis and effective interventions. An optimized technique that allows functional assessment of the salivary glands is invaluable for investigating exocrine gland biology, dysfunction, and therapeutics. Here, we present a step by step approach to performing pilocarpine stimulated saliva secretion, including tracheostomy and the dissection of the three major murine salivary glands...
May 4, 2018: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/29781991/retroductal-nanoparticle-injection-to-the-murine-submandibular-gland
#17
Jomy J Varghese, Isaac L Schmale, Yuchen Wang, Mollie Eva Hansen, Shawn D Newlands, Catherine E Ovitt, Danielle S W Benoit
Two common goals of salivary gland therapeutics are prevention and cure of tissue dysfunction following either autoimmune or radiation injury. By locally delivering bioactive compounds to the salivary glands, greater tissue concentrations can be safely achieved versus systemic administration. Furthermore, off target tissue effects from extra-glandular accumulation of material can be dramatically reduced. In this regard, retroductal injection is a widely used method for investigating both salivary gland biology and pathophysiology...
May 3, 2018: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/29780749/-rhipicephalus-bursa-sialotranscriptomic-response-to-blood-feeding-and-babesia-ovis-infection-identification-of-candidate-protective-antigens
#18
Sandra Antunes, Joana Couto, Joana Ferrolho, Fábio Rodrigues, João Nobre, Ana S Santos, M Margarida Santos-Silva, José de la Fuente, Ana Domingos
Ticks are among the most prevalent blood-feeding arthropods, and they act as vectors and reservoirs for numerous pathogens. Sialotranscriptomic characterizations of tick responses to blood feeding and pathogen infections can offer new insights into the molecular interplay occurring at the tick-host-pathogen interface. In the present study, we aimed to identify and characterize Rhipicephalus bursa salivary gland (SG) genes that were differentially expressed in response to blood feeding and Babesia ovis infection...
2018: Frontiers in Cellular and Infection Microbiology
https://www.readbyqxmd.com/read/29780105/a-case-of-longstanding-igg4-related-ophthalmic-disease-dramatically-improved-after-steroid-therapy
#19
Yoko Hirata, Jiro Fukae, Akihiro Nishida, Shinsuke Fujioka, Mokoto Hamasaki, Masanari Nonokuma, Yoshio Tsuboi
A 61-year-old man was admitted to our hospital because of decreased visual acuity. On admission, he had marked blepharoedema, conjunctival injection, exophthalmos, diplopia, and blurred vision. He also had bronchial asthma and urinary retention requiring urethral catheterization. His serum immunoglobulin (Ig) G4 level was elevated to 1,830 U/mL. Fluorodeoxyglucose-positron emission tomography revealed an abnormal uptake in multiple organs. A histopathological examination of the salivary gland revealed IgG4-positive plasma cell infiltration, leading to a diagnosis of IgG4-related ophthalmic disease...
May 18, 2018: Internal Medicine
https://www.readbyqxmd.com/read/29779285/-advances-in-the-molecular-mechanisms-of-perineural-invasion-in-salivary-adenoid-cystic-carcinoma
#20
Mei Zhang, Xin-Hua Liang, Ya-Ling Tang
Salivary adenoid cystic carcinoma is a very common malignant neoplasm in the salivary glands. One of the most important features of salivary cystic carcinoma is perineural invasion, which renders its complete removal is very difficult through clinical surgery. Consequently, tumor recurrence occurs easily after clinical surgery. Therefore, the molecular mechanisms of perineural invasion in salivary adenoid cystic carcinoma are necessary to explore. These mechanisms are reviewed in this paper.
April 1, 2018: Hua Xi Kou Qiang Yi Xue za Zhi, Huaxi Kouqiang Yixue Zazhi, West China Journal of Stomatology
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