keyword
MENU ▼
Read by QxMD icon Read
search

Lacrimal gland

keyword
https://www.readbyqxmd.com/read/29152430/a-dosimetric-comparison-of-intensity-modulated-proton-therapy-volumetric-modulated-arc-therapy-and-4%C3%AF-non-coplanar-intensity-modulated-radiation-therapy-for-a-patient-with-parameningeal-rhabdomyosarcoma
#1
Tiffany W Chen, Julian Sison, Becky Lee, Arthur J Olch, Andrew Chang, Annelise Giebeler, Kenneth Wong
Rhabdomyosarcoma (RMS) is the most common soft tissue sarcoma in children and manifests as two major histological subtypes: embryonal and alveolar. The five-year local failure rate for RMS at parameningeal sites (middle ear, mastoid region, nasal cavity, etc.) is around 17% despite multiple Intergroup Rhabdomyosarcoma Study Group (IRS) trials conducted to determine the optimal radiation treatment regimen. This case report explores the use of intensity-modulated proton therapy (IMPT) for a 10-year-old child who presented with left eye irritation, facial pain, and headaches and was found to have an alveolar parameningeal rhabdomyosarcoma...
September 10, 2017: Curēus
https://www.readbyqxmd.com/read/29135718/case-report-adenocarcinoma-of-the-lacrimal-gland-presenting-as-an-abduction-deficit
#2
Crystal L DeLuca, Regina E Zimmers
SIGNIFICANCE: It is imperative to follow the clinical guidelines for abduction deficits to ensure prompt diagnosis of potentially serious etiologies and monitor only those in which a microvascular etiology is most likely. This case reports highlights a rare diagnosis of a malignant tumor of the lacrimal gland presenting as an abduction deficit. PURPOSE: Tumors of the lacrimal gland can cause abduction deficits, which may mimic an abducens nerve palsy. Abducens nerve palsies are often encountered by optometrists...
November 11, 2017: Optometry and Vision Science: Official Publication of the American Academy of Optometry
https://www.readbyqxmd.com/read/29127143/satb1-conditional-knockout-results-in-sj%C3%A3-gren-s-syndrome-in-mice
#3
Yuriko Tanaka, Takehiko Sotome, Akiko Inoue, Takanori Mukozu, Taku Kuwabara, Tetuo Mikami, Terumi Kowhi-Shigematsu, Motonari Kondo
Sjögren's syndrome (SS) is an autoimmune disease in which exocrine tissues are affected by cellular and humoral immunity. As a result, the salivary and lacrimal glands of patients with SS are damaged, leading to xerostomia (dry mouth) and keratoconjunctivitis sicca (dry eyes). Because experimental approaches to investigate SS pathogenesis in human patients are limited, development of a mouse model is indispensable for understanding the disease. In this study, we show that special AT-rich sequence binding protein-1 conditional knockout (SATB1cKO) mice, in which the SATB1 gene is specifically deleted from hematopoietic cells, develop SS by 4 wk of age, soon after weaning...
November 10, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/29120068/diagnosis-and-genetics-of-alacrima
#4
REVIEW
J Adams, C P Schaaf
Alacrima, the lack of tears, is a rare clinical finding that has been reported as a feature of multiple genetic disorders and can serve as a diagnostic clue to some rare conditions. Causes of alacrima range from absence/hyposecretion of tears to agenesis or improper development of lacrimal gland ducts and associated structures. There are 13 known heritable disorders featuring varying degrees and causes of alacrima. Some manifest only the congenital absence of tears, while others affect multiple organ systems and may involve severe developmental delay, intellectual disability, and potentially life-threatening autonomic dysregulation...
November 9, 2017: Clinical Genetics
https://www.readbyqxmd.com/read/29118759/b-cells-are-indispensable-for-a-novel-mouse-model-of-primary-sj%C3%A3-gren-s-syndrome
#5
Junfeng Zheng, Qiaoniang Huang, Renliang Huang, Fengyuan Deng, Xiaoyang Yue, Junping Yin, Wenjie Zhao, Yan Chen, Lifang Wen, Jun Zhou, Renda Huang, Gabriela Riemekasten, Zuguo Liu, Frank Petersen, Xinhua Yu
Primary Sjögren's syndrome (pSS) is characterized by a panel of autoantibodies, while it is not clear whether B cells and autoantibodies play an essential role in pathogenesis of the disease. Here, we report a novel mouse model for pSS which is induced by immunization with the Ro60_316-335 peptide containing a predominant T cell epitope. After immunization, mice developed several symptoms mimicking pSS, including a decreased secretion of tears, lymphocytic infiltration into the lacrimal glands, autoantibodies, and increased levels of inflammatory cytokines...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/29112967/expression-patterns-of-conjunctival-mucin-5ac-and-aquaporin-5-in-response-to-acute-dry-eye-stress
#6
Dhruva Bhattacharya, Li Yu, Mingwu Wang
The relationship between aquaporin (AQP) 5 and mucin (MUC) 5AC in the conjunctiva was investigated in response to acute dry eye (DE) stress. A mixed-mechanism rabbit DE model, in which the main lacrimal gland, Harderian gland, and nictitating membrane were resected, was further explored in this study. Conjunctival impression cytology specimens were harvested before excision (BE) and up to 3 months after excision (AE) in 8 (16 eyes) male New Zealand White rabbits, and immunoblotting was employed to assess the expression of AQP5 and MUC5AC...
2017: PloS One
https://www.readbyqxmd.com/read/29106072/regulation-of-continuous-but-complex-expression-pattern-of-six1-during-early-sensory-development
#7
Shigeru Sato, Yasuhide Furuta, Kiyoshi Kawakami
BACKGROUND: In vertebrates, cranial sensory placodes give rise to neurosensory and endocrine structures such as the olfactory epithelium, inner ear and anterior pituitary. We report here the establishment of a transgenic mouse line that expresses Cre recombinase under the control of Six1-21, a major placodal enhancer of the homeobox gene Six1. RESULTS: In the new Cre-expressing line, mSix1-21-NLSCre, the earliest Cre-mediated recombination was induced at embryonic day 8...
November 6, 2017: Developmental Dynamics: An Official Publication of the American Association of Anatomists
https://www.readbyqxmd.com/read/29105068/activation-of-plasmacytoid-dendritic-cells-by-apoptotic-particles-mechanism-for-the-loss-of-immunologic-tolerance-in-sj%C3%A3-gren-s-syndrome
#8
Mari Ainola, Pauliina Porola, Yuya Takakubo, Beata Przybyla, Vesa-Petteri Kouri, Tuomas Aleksi Tolvanen, Arno Hänninen, Dan Christian Nordström
Sjögren's syndrome (SS) is a common autoimmune disease targeting salivary and lacrimal glands. It is strongly female-dominant characterized by low estrogen levels combined with a local intracrine dihydrotestosterone defect. We hypothesized that these hormonal deficits lead to increased apoptosis of the epithelial cells and plasmacytoid dendritic cell (pDC) mediated pro-inflammatory host responses. Expression of Toll-like receptors (TLRs) 7 and 9 and cytokine profile was studied in pDCs treated with apoptotic particles collected in consecutive centrifugation steps of media from apoptotic cells...
November 4, 2017: Clinical and Experimental Immunology
https://www.readbyqxmd.com/read/29098296/manipulation-of-panx1-activity-increases-the-engraftment-of-transplanted-lacrimal-gland-epithelial-progenitor-cells
#9
Liana V Basova, Xin Tang, Takeshi Umasume, Anastasia Gromova, Tatiana Zyrianova, Taisia Shmushkovich, Alexey Wolfson, Dillon Hawley, Driss Zoukhri, Valery I Shestopalov, Helen P Makarenkova
Purpose: Sjögren's syndrome is a systemic chronic autoimmune inflammatory disease that primarily targets the salivary and lacrimal glands (LGs). Currently there is no cure; therefore, cell-based regenerative therapy may be a viable option. LG inflammation is facilitated by extracellular ATP and mediated by the Pannexin-1 (Panx1) membrane channel glycoprotein. We propose that suppression of inflammation through manipulation of Panx1 activity can stimulate epithelial cell progenitor (EPCP) engraftment...
November 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/29098122/strategies-for-regenerating-the-lacrimal-gland
#10
Catherine Y Liu, Masatoshi Hirayama, Marwan Ali, Dhara Shah, Vinay K Aakalu
Purpose of review: Aqueous deficient dry eye disease, a significant cause of morbidity worldwide, is due to dysfunction of the main and accessory lacrimal glands. Recent advances in efforts to regenerate lacrimal gland are reviewed. Recent findings: Several strategies are being explored: ex vivo culture models of human and non-human lacrimal gland epithelial and myoepithelial cells, isolation and characterization of adult precursor cells within lacrimal glands, directed differentiation of stem cells to lacrimal gland cells, and organogenesis and engraftment techniques...
September 2017: Current Ophthalmology Reports
https://www.readbyqxmd.com/read/29098081/reduced-expression-of-vamp8-in-lacrimal-gland-affected-by-chronic-graft-versus-host-disease
#11
Masaki Fukui, Yoko Ogawa, Shin Mukai, Mizuka Kamoi, Teru Asato, Yutaka Kawakami, Kazuo Tsubota
Purpose: To investigate whether the SNARE protein vesicle-associated membrane protein 8 (VAMP8) was implicated in the development of chronic ocular graft-versus-host disease (GVHD). Methods: Firstly, the chronic GVHD (cGVHD) and Sjögren's syndrome (SS)-impaired lacrimal gland (LG) tissue sections from humans for diagnostic purpose were evaluated for VAMP8 expression by histopathology and immunohistochemistry. Next, serial changes of tear secretion and VAMP8 expression at both protein and mRNA level of LG in an animal cGVHD model compared with the syngeneic control...
2017: Journal of Ophthalmology
https://www.readbyqxmd.com/read/29079859/evaluation-of-decellularized-porcine-jejunum-as-a-matrix-for-lacrimal-gland-reconstruction-in-vitro-for-treatment-of-dry-eye-syndrome
#12
Isobel Massie, Kristina Spaniol, Andreas Barbian, Gereon Poschmann, Kai Stühler, Gerd Geerling, Marco Metzger, Sonja Mertsch, Stefan Schrader
Purpose: Dry eye syndrome (DES) can cause blindness in severe cases, but mainly palliative treatments exist. A tissue-engineered lacrimal gland (LG) could provide a curative treatment. We aimed to evaluate decellularized porcine jejunum (SIS-Muc) as a scaffold for porcine LG epithelial cells. Methods: To evaluate SIS-Muc as a potential scaffold, basement membrane proteins in SIS-Muc and native LG were compared (immunohistochemistry [IHC]). Porcine LG epithelial cells cultured on plastic were characterized (immunocytochemistry), and their culture supernatant was compared with porcine tears (proteomics)...
October 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/29068833/adult-t-cell-leukemia-lymphoma-with-primary-lacrimal-gland-involvement
#13
Maria Suzanne Sabundayo, Yasuhiro Takahashi, Hirohiko Kakizaki
A 69-year-old Japanese male presented with a 3-month history of bilateral ptosis with lacrimal gland bulge. He came from western Japan, an area endemic for human T-lymphotropic virus Type 1 infection. Physical examination and imaging revealed bilaterally enlarged lacrimal glands. Hematologic testing, biopsy with histopathology, and immunohistochemistry were all consistent with adult T-cell leukemia/lymphoma.
October 20, 2017: Ophthalmic Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/29053559/functional-role-of-lacrimal-gland-fibroblasts-in-a-mouse-model-of-chronic-graft-versus-host-disease
#14
Mio Yamane, Yoko Ogawa, Shin Mukai, Saori Yaguchi, Hajime Kamijuku, Takaaki Inaba, Kazuki Asai, Satoru Morikawa, Yutaka Kawakami, Shigeto Shimmura, Kazuo Tsubota
PURPOSE: This study aimed to clarify the mechanisms and assess the characteristics of the chronic graft-versus-host disease (cGVHD) fibrosis in the lacrimal gland (LG) of mice. METHODS: Histopathology of LG tissues was examined by immunohistochemistry and electron microscopy. Cultured fibroblasts derived from the LG were analyzed by phase-contrast microscopy, immunocytochemistry, flow cytometry, proliferation assay, and invasion and migration assays. RESULTS: Cultured murine LG fibroblasts in cGVHD were spindle-shaped and relatively small, whereas those from syngeneic controls were polygon-shaped and relatively large...
October 17, 2017: Cornea
https://www.readbyqxmd.com/read/29053399/new-pathogenic-variant-in-the-fgf10-gene-in-the-agenesis-of-lacrimal-and-salivary-gland-syndrome-ophthalmological-and-genetic-study
#15
Maria Jesus Rodrigo, Miriam Idoipe, Silvia Izquierdo, Maria Satue, Antonio Mateo, Antonio Sanchez, Elena Garcia-Martin, Luis Pablo
Aplasia/agenesis of lacrimal and salivary glands is a rare congenital defect that has been associated with disturbances in fibroblast growth factor 10 (FGF10). It can present with symptoms of congenital lacrimal obstruction, dry eye, and dry mouth. We report the ophthalmological and genetic study of a 19-year-old woman and her relatives suffering from this syndrome. A new probably pathogenic variant is described in the FGF10 gene.
October 20, 2017: Ophthalmic Genetics
https://www.readbyqxmd.com/read/29051324/corneal-complications-after-orbital-radiotherapy-for-primary-epithelial-malignancies-of-the-lacrimal-gland
#16
Sri K Gore, Nicholas P Plowman, Aruna Dharmasena, David H Verity, Geoffrey E Rose
PURPOSE: To review the long-term corneal complications after high-dose external beam orbital radiotherapy given to patients for lacrimal gland carcinomas. The impact of prophylactic measures to improve long-term ocular surface health is also assessed. DESIGN: Retrospective case series. PARTICIPANTS: Patients under the care of Moorfields Eye Hospital and receiving external beam radiotherapy for primary epithelial lacrimal gland carcinoma between 1975 and 2014...
October 19, 2017: British Journal of Ophthalmology
https://www.readbyqxmd.com/read/29050463/clinical-outcomes-and-pathological-characteristics-of-immunoglobulin-g4-related-ophthalmic-disease-versus-orbital-inflammatory-pseudotumor
#17
Hong Ki Min, Youn Soo Lee, Suk-Woo Yang, Jennifer Lee, Seung-Ki Kwok, Ji Hyeon Ju, Wan-Uk Kim, Sung-Hwan Park
Background/Aims: This study investigated the clinical and pathological features of immunoglobulin G4 (IgG4)-related ophthalmic disease. To clarify the features, we compared IgG4-related ophthalmic disease and orbital inflammatory pseudotumor. Methods: We retrospectively reviewed the medical records of 103 patients who were initially diagnosed with orbital inflammatory pseudotumor, and identified 16 cases in which the diagnosis was based on surgical biopsy and for which data in medical records were sufficient for analysis...
October 19, 2017: Korean Journal of Internal Medicine
https://www.readbyqxmd.com/read/29049099/spontaneous-rupture-of-lacrimal-gland-pleomorphic-adenoma-pivotal-role-in-masquerading-orbital-cellulitis
#18
Farzad Pakdel, Niloofar Pirmarzdashti, Sasan Soltani, Zohreh Nozarian, Fahimeh Asadi Amoli, Abolfazl Kassaee
The authors aim to report a 68-year-old patient presenting with acute swelling and redness of orbital area diagnosed initially as orbital cellulitis. Surgical excision was decided based on clinical and imaging findings with the diagnosis of pleomorphic adenoma of the lacrimal gland. Lacrimal gland pleomorphic adenoma usually presents with painless gradual swelling of upper eyelid. In an exceptionally rare circumstance, this case showed acute orbital inflammation, and imaging findings of orbital inflammation mostly focused around the cystic space of the lacrimal gland tumor...
October 14, 2017: Ophthalmic Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/29042648/proteomic-analysis-of-human-lacrimal-and-tear-fluid-in-dry-eye-disease
#19
Jae Hun Jung, Yong Woo Ji, Ho Sik Hwang, Jae Won Oh, Hyun Chang Kim, Hyung Keun Lee, Kwang Pyo Kim
To understand the pathophysiology of dry eye disease (DED), it is necessary to characterize proteins in the ocular surface fluids, including tear fluid (TF) and lacrimal fluid (LF). There have been several reports of TF proteomes, but few proteomic studies have examined LF secreted from the lacrimal gland (LG). Therefore, we characterized the proteins constituting TF and LF by liquid chromatography mass spectrometry. TF and LF were collected from patients with non-Sjögren syndrome DED and from healthy subjects...
October 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29039996/giant-pleomorphic-adenoma-of-the-lacrimal-gland-a-surgical-challenge
#20
Md Shahid Alam, Varsha Backiavathy, Bipasha Mukherjee
Pleomorphic adenoma is the most common epithelial neoplasm of the lacrimal gland. The tumor typically presents with a superotemporal mass with inferonasal displacement of the globe. They generally measure less than 3 cm in size and can be removed comfortably via a lateral orbitotomy approach. Pleomorphic adenoma left unattended for a long period grows up to humongous proportions and poses a surgical challenge both for its complete removal and globe salvage. We report a rare case of pleomoprphic adenoma of the lacrimal gland in an adult male, who did not seek any medical advice for 20 years allowing the tumor to expand enormously in all dimensions, with complete obscuration of the globe...
October 17, 2017: Orbit
keyword
keyword
120715
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"