Results 71 to 80 of about 561,164 (245)

Nasopharyngeal Approach to a Cholesterol Granuloma of the Petrous Apex

Ear, nose, & throat journal, 2021
Cholesterol granulomas are rare cystic inflammatory lesions characterized by the formation of cholesterol crystals. They are the most prevalent lesions of the petrous apex and when symptomatic, hearing loss, vertigo, tinnitus, headache, and facial ...
S. Azevedo, G. Mendes, M. Coutinho, C. Almeida e Sousa   +3 more
semanticscholar   +1 more source

Boron Nitride Nanomaterials Trigger Immunomodulatory Effects in Human Broncho‐Epithelial Cells by Modulating Eicosanoid Lipid Signaling

Advanced Science, EarlyView.
This study demonstrates that BNNT exposure disrupts lipid homeostasis in bronchial epithelial cell cultures and activates eicosanoid lipid biosynthesis, producing inflammatory lipid mediators like leukotrienes. These effects are more pronounced in asthmatic cell cultures compared to healthy ones.
Govind Gupta, Jonas Bossart, Sènan Mickael D'Almeida, Luis Augusto Visani de Luna, Christoph Schwärzler, Tingting Fu, Vanesa Ayala‐Nunez, Alexander Gogos, Marija Buljan, Vera M Kissling, Emmanuel Flahaut, Miguel Garcia, Cyrill Bussy, Peter Wick, Tina Buerki‐Thurnherr   +14 more
wiley   +1 more source

Pathogenic mycobacteria achieve cellular persistence by inhibiting the Niemann-Pick Type C disease cellular pathway [PDF]

, 2016
Background. Tuberculosis remains a major global health concern. The ability to prevent phagosome-lysosome fusion is a key mechanism by which intracellular mycobacteria, including Mycobacterium tuberculosis, achieve long-term persistence within host cells.
A Morgan, A Pandey, C Chen, C Davidson, C Pacheco, C Ramirez, C Settembre, C Varela, D Bowdish, D Dao, D Höglinger, D Neville, D Russell, D Russell, D Sleat, D te Vruchte, E Lloyd-Evans, E Lloyd-Evans, E Millard, F Camargo, F Chen, F Lu, F Platt, F Stein, G Besra, I Vergne, I Vergne, J Armstrong, J Bilmen, J Carette, J Davies, J Gray, J Indrigo, J Verschoor, J Wraith, J Wu, K Tahlan, K Takayama, M Beukes, M Katti, M Kim, M Majeed, M Patterson, M Patterson, M Pineda, M Tsai, M Vanier, M Vanier, N Lack, P Domenech, P Fineran, P Peyron, P Woodruff, R Hunter, R Infante, R Jayachandran, R Lachmann, R Lang, S Axelrod, S Naureckiene, S Sturgill-Koszycki, S Zimmerli, T Evans, T Schwerd, V Rao, V Stein, W Beatty, W Lee, X Gong, X He, X Li, Y Benadie, Y Fujita, Z Malik   +73 more
core   +3 more sources

Surgical intervention in middle-ear cholesterol granuloma [PDF]

, 2003
Eleven patients who had been surgically treated from 1988 to 1999 were retrospectively reviewed in order to evaluate the efŽcacy of ventilation tube insertion and mastoidectomy with, or without, mastoid obliteration for intractable middle-ear cholesterol
Maeta, Manabu, Miyahara, Takakazu, Nakagawa, Fumio, Saito, Ryusuke   +3 more
core   +1 more source

Giant septated petrous apex cholesterol granuloma

Otolaryngology Case Reports, 2020
Cholesterol granulomas are benign, cystic lesions of the temporal bone that can cause neurological symptoms when sufficiently large. Though often unilocular, complicated cholesterol granulomas with septated compartments pose additional challenges for ...
Arushi Gulati, Ramon Bustos, Yi Cai, Annick Aubin-Pouliot, Steven D. Pletcher, Steven W. Cheung   +5 more
doaj   +1 more source

The Current Situation and Development of Endoscopic Ear Surgery in China

World Journal of Otorhinolaryngology - Head and Neck Surgery, EarlyView.
ABSTRACT Endoscopic ear surgery has been widely performed in China since 2015 due to the development and rapid popularization of endoscopic technology. Due to the relative shortness of the auditory meatus, only a fixed endoscope is required in many cases, rather than a motion similar to a nasal endoscope, and uncontrollable bleeding is virtually non ...
Meng‐Wen Shi, Ge Yin, Yu Sun
wiley   +1 more source

Eruptive xanthoma with unexpected granuloma annulare-like microscopic appearance: Case report [PDF]

, 2009
Xantoma eruptivo e granuloma anular são doenças dermatológicas com quadros clínicos distintos que, algumas vezes, apresentam semelhanças histopatológicas que podem conduzir a diagnóstico errôneo. Relata-se o caso de paciente do sexo masculino com 34 anos,
FAGUNDES, Patrícia P. S., PINTO, Analice Souza Teixeira, PINTO, Paulo Augusto Teixeira, TEBCHERANI, Antônio José, VALENTE, Neusa Yuriko Sakai   +4 more
core   +2 more sources

Cerebellopontine Angle Cholesterol Granuloma: A Case Report

International Journal For Multidisciplinary Research
Cholesterol granulomas are benign growths that occur due to an inflammatory response to cholesterol and hemosiderin. These lesion typically originate in the temporal bone and middle ear, although cerebellopontine angle cholesterol granuloma is ...
Muhammad Hariz Shahrudin, Nurhamizah
semanticscholar   +1 more source

miRNA Profiling of Cholesteatoma‐Derived Exosomes Reveals Exosomal miR‐223‐3p and miR‐142‐5p as Potential Biomarkers for Acquired Middle Ear Cholesteatoma

World Journal of Otorhinolaryngology - Head and Neck Surgery, EarlyView.
ABSTRACT Objectives Acquired cholesteatoma is an abnormal and invasive growth of keratinized squamous epithelial cells in the middle ear. The study aims to explore the role of exosomal miRNAs in the pathogenesis of acquired cholesteatoma and their potential in clinical application.
Qi Tang, Meng‐Yao Xie, Shu Wang, Zhi‐Yuan Wu, Zhi‐Jin Han, Chen Li, Shu‐Yi Wang, Yuan Cao, Yu‐Run Chen, Bin Wang, Ying‐Ying Shang, Xiao‐Wu Huang, Hua Yang   +12 more
wiley   +1 more source

Cholesterol granuloma of the paranasal sinuses [PDF]

, 2017
Cholesterol granulomata of the middle ear occasionally accompany chronic middle-ear diseases with diminished ventilation. In the paranasal sinuses, especially in the frontal sinus, they have occasionally been mentioned in the literature.
Bütler, S., Grossenbacher, R.
core