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https://www.readbyqxmd.com/read/28526333/systemic-manifestations-of-primary-sj%C3%A3-gren-s-syndrome-in-the-nod-b10sn-h2-b-j-mouse-model
#1
Jeremy Kiripolsky, Long Shen, Yichen Liang, Alisa Li, Lakshmanan Suresh, Yun Lian, Quan-Zhen Li, Daniel P Gaile, Jill M Kramer
Animal models that recapitulate human disease are crucial for the study of Sjögren's Syndrome (SS). While several SS mouse models exist, there are few primary SS (pSS) models that mimic systemic disease manifestations seen in humans. Similar to pSS patients, NOD.B10Sn-H2(b)/J (NOD.B10) mice develop exocrine gland disease and anti-nuclear autoantibodies. However, the disease kinetics and spectrum of extra-glandular disease remain poorly characterized in this model. Our objective was to characterize local and systemic SS manifestations in depth in NOD...
May 16, 2017: Clinical Immunology: the Official Journal of the Clinical Immunology Society
https://www.readbyqxmd.com/read/28518033/distribution-and-quantitative-estimates-of-variant-creutzfeldt-jakob-disease-prions-in-tissues-of-clinical-and-asymptomatic-patients
#2
Jean Y Douet, Caroline Lacroux, Naima Aron, Mark W Head, Séverine Lugan, Cécile Tillier, Alvina Huor, Hervé Cassard, Mark Arnold, Vincent Beringue, James W Ironside, Olivier Andréoletti
In the United-Kingdom, ≈1 of 2,000 persons could be infected with variant Creutzfeldt-Jakob disease (vCJD). Therefore, risk of transmission of vCJD by medical procedures remains a major concern for public health authorities. In this study, we used in vitro amplification of prions by protein misfolding cyclic amplification (PMCA) to estimate distribution and level of the vCJD agent in 21 tissues from 4 patients who died of clinical vCJD and from 1 asymptomatic person with vCJD. PMCA identified major levels of vCJD prions in a range of tissues, including liver, salivary gland, kidney, lung, and bone marrow...
June 2017: Emerging Infectious Diseases
https://www.readbyqxmd.com/read/28515585/calcification-of-the-submandibular-gland-in-a-patient-with-chickenpox
#3
Cetin Celenk, Peruze Celenk
The pneumonia virus of chickenpox is now known to cause scattered calcified foci in the lungs, however to our knowledge, recent literature has not discussed calcification in the salivary glands. A 15-year-old boy consulted the department of radiology because of a swelling on the right side of the submandibular area. Radiological assessment included an ultrasonography and computerized tomography scan of the neck area, which demonstrated intraparenchymal amorph calcification, with approximately 13 mm diameter in the right submandibular gland...
January 2017: Indian Journal of Radiology & Imaging
https://www.readbyqxmd.com/read/28508996/hyalinizing-clear-cell-carcinoma-of-the-bronchus
#4
Maryam Shahi, Michelle Dolan, Paari Murugan
Hyalinizing clear cell carcinoma (HCCC) is an uncommon low-grade minor salivary gland neoplasm that usually arises in the head and neck region. We report a 55-year-old man who presented with a 2.5 cm lung mass that was partially obstructing the right bronchus intermedius. The tumor consisted of cords and nests of clear and eosinophilic cells in a hyalinized stromal background. The neoplastic cells expressed cytokeratin (CK) 7, CK 5/6, high-molecular weight cytokeratin (34BE12), p63 and p40, while TTF-1, napsin A, CK20, S100, smooth muscle actin, synaptophysin and chromogranin were negative...
May 16, 2017: Head and Neck Pathology
https://www.readbyqxmd.com/read/28506999/btbd7-is-essential-for-region-specific-epithelial-cell-dynamics-and-branching-morphogenesis-in-vivo
#5
William P Daley, Kazue Matsumoto, Andrew D Doyle, Shaohe Wang, Brian J DuChez, Kenn Holmbeck, Kenneth M Yamada
Branching morphogenesis of developing organs requires coordinated but poorly understood changes in epithelial cell-cell adhesion and cell motility. We report that Btbd7 is a crucial regulator of branching morphogenesis in vivo. Btbd7 levels are elevated in peripheral cells of branching epithelial end buds, where it enhances cell motility and cell-cell adhesion dynamics. Genetic ablation of Btbd7 in mice disrupts branching morphogenesis of salivary gland, lung, and kidney. Btbd7 knockout results in more tightly packed outer bud cells, which display stronger E-cadherin localization, reduced cell motility, and decreased dynamics of transient cell separations associated with cleft formation; inner bud cells remain unaffected...
May 15, 2017: Development
https://www.readbyqxmd.com/read/28479702/inflammatory-myofibroblastic-tumor-of-mandible-a-rare-case-report-and-review-of-literature
#6
Rajani Korlepara, Venkateswara Rao Guttikonda, Jayakiran Madala, Sravya Taneeru
Inflammatory pseudotumor is a term given to different neoplastic and nonneoplastic entities that have a common histological appearance, which comprises spindle cell proliferation with a prominent chronic inflammatory cell infiltrate. Inflammatory myofibroblastic tumor (IMT) is an uncommon lesion with distinctive clinical, pathological and molecular features and is considered to be pseudotumor for the past two decades due to its appearance. IMT is an intermediate soft tissue tumor which was first observed in lungs...
January 2017: Journal of Oral and Maxillofacial Pathology: JOMFP
https://www.readbyqxmd.com/read/28454450/de-novo-myoepithelial-carcinoma-with-multiple-metastases-arising-from-a-submandibular-salivary-gland-a-case-report
#7
Karina Cecília Panelli Panelli Santos, Hidenobu Matsuzaki, Teruhisa Unetsubo, Shimo Tsuyoshi, Hitoshi Nagatsuka, Jun-Ichi Asaumi
Salivary gland carcinomas are rare tumors, representing ~0.5% of all malignancies. Myoepithelioma is also uncommon, representing ~1% of all salivary gland tumors. Myoepithelial carcinoma (MC) is even rarer, representing 0.2 to 0.6% of all salivary gland tumors. We herein report a case of MC with multiple metastases arising from a submandibular gland in a 71-year-old male patient and present the associated imaging findings. The patient was considered to have a de novo type of myoepithelial carcinoma, which is reportedly associated with higher malignancy than the transformation type of the disease (i...
April 2017: Oncology Letters
https://www.readbyqxmd.com/read/28432120/two-glycosaminoglycan-binding-domains-of-the-mouse-cytomegalovirus-encoded-chemokine-mck-2-are-critical-for-oligomerization-of-the-full-length-protein
#8
Sergio M Pontejo, Philip M Murphy
Chemokines are essential for antimicrobial host defenses and tissue repair. Herpesviruses and poxviruses also encode chemokines, copied from their hosts and repurposed for multiple functions, including immune evasion. The CC chemokine MCK-2 encoded by mouse cytomegalovirus (MCMV) has an atypical structure consisting of a classic chemokine domain N-terminal to a second unique domain, resulting from the splicing of MCMV ORFs m131 and m129. MCK-2 is essential for full MCMV infectivity in macrophages and for persistent infection in the salivary gland...
April 21, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28423973/neurological-involvement-of-igg4-related-disease-description-of-a-case-and-review-of-the-literature
#9
Marco Varrassi, Camilla Gianneramo, Francesco Arrigoni, Paolo Cerrone, Patrizia Sucapane, Carmine Marini, Alessandra Splendiani
IgG4-related disease is a recently discovered pathological entity, histologically characterised by fibrosis and IgG4-positive plasma cell infiltration. This condition may virtually involve every site of the organism, with a various range of clinical presentations. The most commonly affected organ is the pancreatic gland, but it can also involve the biliary tract, salivary and lacrimal glands, kidneys, orbital tissues, lymph nodes, lungs and many others. More recently, IgG4-related disease has been demonstrated to involve, in rare cases, also the central nervous system, with a pattern mainly characterised by hypertrophic pachymeningitis...
January 1, 2017: Neuroradiology Journal
https://www.readbyqxmd.com/read/28421710/synovial-sarcoma-metastatic-to-the-parotid-gland-a-possible-pitfall-in-salivary-gland-fine-needle-aspiration-cytology-report-of-a-case-with-immunocytochemical-and-fluorescence-in-situ-hybridization-findings
#10
Franco Fulciniti, Jessica Barizzi, Vittoria Martin, Vittorio Tarallo, Stefano Ermanni
We report one case of metastatic synovial sarcoma (SS) to the parotid gland in a 93-year-old male. The patient had undergone upper left pulmonary lobectomy with mediastinal lymphadenectomy for SS of the lung 5 years before. The cytopathologic presentation and the immunocytochemical findings on the FNA sample were suggestive of a spindle cell myoepithelioma, while a SYT rearrangement was identified by a FISH performed on a cytological smear of the lesion. The diagnosis was further confirmed also by positive immunocytochemical expression of TLE1 on a section from the obtained cell block...
April 19, 2017: Diagnostic Cytopathology
https://www.readbyqxmd.com/read/28415674/primary-sj%C3%A3-gren-s-syndrome-with-diffuse-cystic-lung-changes-developed-systemic-lupus-erythematosus-a-case-report-and-literature-review
#11
Xiao Liu, Hao Li, Yunhong Yin, Dedong Ma, Yiqing Qu
Sjögren's syndrome (SS) is a chronic inflammatory autoimmune disease that can occur as a unique existence (primary Sjögren's syndrome) or merge with other systemic diseases like systemic lupus erythematosus (SLE), rheumatoid arthritis or systemic sclerosis (secondary Sjögren's syndrome). Data on the two diseases occurrence order are inadequate. Primary Sjögren's syndrome (pSS) may relatively uncommonly lead to diffuse cystic lung changes. We represent a female who was diagnosed pSS with diffuse cystic lung alterations developed SLE two years later...
May 23, 2017: Oncotarget
https://www.readbyqxmd.com/read/28409070/a-rare-case-of-a-benign-primary-pleomorphic-adenoma-of-the-lung
#12
Venkatkiran Kanchustambham, Swetha Saladi, Setu Patolia, Sara Mahmoud Assaf, David Stoeckel
Salivary gland tumors (SGT) constitute a small proportion of primary respiratory system neoplasms. Benign SGT comprises pleomorphic adenoma and is exceedingly rare in the lungs. We hereby present a rare case of a benign primary pleomorphic adenoma of the lung. The histological pattern of the tumor was indistinguishable from the head and neck SGT counterparts and showed biphasic morphology. Malignant features were not observed and a metastatic SGT was ruled out. Although little is known about the clinical progression of these rare tumors, surgical resection and interval surveillance remains the treatment of choice...
March 2, 2017: Curēus
https://www.readbyqxmd.com/read/28393980/-igg4-associated-nephritis-and-recurrent-hemoptysis-case-report
#13
Daniel Erlij, Ángela Rivera, Juan Carlos Maya, Carolina Cuellar, Gonzalo Correa, Susana Michalland, Gonzalo P Méndez
IgG4 disease is a multi-systemic condition involving pancreas, salivary glands and lymph nodes. Less frequently, it causes interstitial nephritis and involves the lungs. We report a 58 years old male with a four years history of hemoptysis and renal dysfunction characterized by hematuria and proteinuria, responsive to steroidal therapy. The renal biopsy established the diagnosis of IgG4 associated interstitial nephritis. Lung involvement was considered secondary to the same systemic disease.
January 2017: Revista Médica de Chile
https://www.readbyqxmd.com/read/28381457/a-novel-biomarker-associated-with-distress-in-humans-calcium-binding-protein-spermatid-specific-1-cabs1
#14
Thomas Ritz, David Rosenfield, Chris D St Laurent, Ana F Trueba, Chelsey A Werchan, Pia D Vogel, Richard J Auchus, Eduardo Reyes-Serratos, A Dean Befus
BACKGROUND: Calcium binding protein, spermatid specific 1 (CABS1) is expressed in human submandibular gland and has an anti-inflammatory motif similar to that in submandibular rat 1 (SMR1) in rats. Here we investigate CABS1 in human saliva and its association with psychological and physiological distress and inflammation in humans. METHOD: Volunteers participated across three studies: weekly baseline measures; a psychosocial speech and mental arithmetic stressor under evaluative threat; and during academic exam stress...
April 5, 2017: American Journal of Physiology. Regulatory, Integrative and Comparative Physiology
https://www.readbyqxmd.com/read/28349433/targeting-promoter-associated-noncoding-rna-in-vivo
#15
Gianluca Civenni
There are many classes of noncoding RNAs (ncRNAs), with wide-ranging functionalities (e.g., RNA editing, mediation of mRNA splicing, ribosomal function). MicroRNAs (miRNAs) and long ncRNAs (lncRNAs) are implicated in a wide variety of cellular processes, including the regulation of gene expression. Incorrect expression or mutation of lncRNAs has been reported to be associated with several disease conditions, such a malignant transformation in humans. Importantly, pivotal players in tumorigenesis and cancer progression, such as c-Myc, may be regulated by lncRNA at promoter level...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28341276/lung-metastasectomy-in-adenoid-cystic-cancer-is-it-worth-it
#16
Lara Girelli, Laura Locati, Carlotta Galeone, Paolo Scanagatta, Leonardo Duranti, Lisa Licitra, Ugo Pastorino
BACKGROUND AND PURPOSE: Adenoid cystic carcinoma (ACC) of salivary glands is characterized by long-term distant metastasis, most commonly in lungs. No agreement has been reached about the role of surgical treatment of pulmonary lesions. We evaluated the long-term results of lung metastasectomy for ACC in order to identify factors that should be taken into account in selecting patients eligible for surgery and treatment planning. PATIENTS AND METHODS: A retrospective study was conducted on 109 patients selected from our institutional experience and from the International Registry of Lung Metastases...
February 2017: Oral Oncology
https://www.readbyqxmd.com/read/28325631/new-concepts-of-personalized-therapy-in-salivary-gland-carcinomas
#17
REVIEW
Gunter Keller, Diana Steinmann, Alexander Quaas, Viktor Grünwald, Stefan Janssen, Kais Hussein
Salivary gland carcinomas are rare tumours and therapy strategies are less standardized than in lung, gastric or breast cancer. Therapy is based on surgery, but not all carcinomas are completely resectable, e.g. because carcinomas often show infiltration of nerves. For further therapy decision pathology is recommended, but evaluation of potential targets for personalized therapy is not part of the routine panel. Many salivary gland carcinomas can be resistant to radio- and/or chemotherapy, which limits therapeutic options...
May 2017: Oral Oncology
https://www.readbyqxmd.com/read/28306727/biodistribution-and-pet-imaging-of-pharmacokinetics-of-manganese-in-mice-using-manganese-52
#18
A Lake Wooten, Tolulope A Aweda, Benjamin C Lewis, Rebecca B Gross, Suzanne E Lapi
Manganese is essential to life, and humans typically absorb sufficient quantities of this element from a normal healthy diet; however, chronic, elevated ingestion or inhalation of manganese can be neurotoxic, potentially leading to manganism. Although imaging of large amounts of accumulated Mn(II) is possible by MRI, quantitative measurement of the biodistribution of manganese, particularly at the trace level, can be challenging. In this study, we produced the positron-emitting radionuclide 52Mn (t1/2 = 5.6 d) by proton bombardment (Ep<15 MeV) of chromium metal, followed by solid-phase isolation by cation-exchange chromatography...
2017: PloS One
https://www.readbyqxmd.com/read/28288723/clinical-features-and-management-of-non-gastrointestinal-non-ocular-extranodal-mucosa-associated-lymphoid-tissue-enmalt-marginal-zone-lymphomas
#19
REVIEW
Estella Matutes, Carlos Montalban
Extranodal mucosa associated lymphoid tissue (ENMALT) marginal zone lymphomas may arise at any site of the body. The most frequent localizations other than gastrointestinal and eye are salivary gland, skin, lung and thyroid. These lymphomas usually arise in a setting of inflammation due to a persistent infection or autoimmune diseases such as Sjogren syndrome in salivary MALT lymphomas and Hashimoto's thryroiditis in thyroid lymphomas. They affect middle-aged patients with a female predominance when lymphoma arises in certain locations...
March 2017: Best Practice & Research. Clinical Haematology
https://www.readbyqxmd.com/read/28245826/host-pathogen-interplay-at-primary-infection-sites-in-pigs-challenged-with-actinobacillus-pleuropneumoniae
#20
Elena L Sassu, Janna Frömbling, J Catharina Duvigneau, Ingrid Miller, Andrea Müllebner, Ana M Gutiérrez, Tom Grunert, Martina Patzl, Armin Saalmüller, Alexandra von Altrock, Anne Menzel, Martin Ganter, Joachim Spergser, Marion Hewicker-Trautwein, Jutta Verspohl, Monika Ehling-Schulz, Isabel Hennig-Pauka
BACKGROUND: Actinobacillus (A.) pleuropneumoniae is the causative agent of porcine pleuropneumonia and causes significant losses in the pig industry worldwide. Early host immune response is crucial for further progression of the disease. A. pleuropneumoniae is either rapidly eliminated by the immune system or switches to a long-term persistent form. To gain insight into the host-pathogen interaction during the early stages of infection, pigs were inoculated intratracheally with A. pleuropneumoniae serotype 2 and humanely euthanized eight hours after infection...
February 28, 2017: BMC Veterinary Research
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