Results 71 to 80 of about 40,867 (265)

Intraspecific variation of cochlear morphology in bowhead and beluga whales

The Anatomical Record, EarlyView.
Abstract The bony labyrinth of the petrosal bone, a distinctive feature of mammal skulls, is often identified in micro‐computed tomography imaging to infer species' physiological and ecological traits. When done as part of a comparative study, one individual specimen is normally considered representative of a species, and intraspecific variation is ...
John Peacock, J. G. M. Thewissen
wiley   +1 more source

Are there morpho‐acoustic patterns of adaptation in nonhuman primate ears? Testing the role of ecology and habitat in shaping ear morphology and function

The Anatomical Record, EarlyView.
Abstract Analysis of the variation in the bony structures of the inner and middle ear provides critical insights into functional morphology, as well as adaptive morphology across primates. In this study, we investigated whether ear morphology patterns are related to the ecological characteristics of species and their habitats to test two acoustic ...
Myriam Marsot, Rémi Laffont, Émilie Steimetz, Patricia Balaresque, Sébastien Couette   +4 more
wiley   +1 more source

Statistical shape modeling of the human inner ear through micro‐computed tomography imaging

The Anatomical Record, EarlyView.
In this study, 54 cadaveric temporal bone specimens underwent high‐resolution micro‐CT imaging. Images were semi‐automatically segmented and converted to 3D surface mesh models for morphological measurement and analysis. Statistical shape models were created for the inner ear, cochlea, and vestibular system, as well as for sex‐ and side‐based subgroups.
Carmine Spedaliere, Alexandra Vaupotic, Jaehyun Hwang, Khalil Husein, Mustafa Hafidh, Kyle Rioux, S. Alireza Rohani, Sumit K. Agrawal, Hanif M. Ladak   +8 more
wiley   +1 more source

New techniques for old bones: Morphometric and diffeomorphometric analysis of the bony labyrinth of the Reilingen and Ehringsdorf Neandertals

The Anatomical Record, EarlyView.
Abstract Neandertals are known to possess very distinctive traits in their bony labyrinth morphology, such as an inferiorly positioned posterior canal and a very low number of turns in the cochlea. Hence, the inner ear has been often used to assess the Neandertal status of fragmentary fossils.
Alessandro Urciuoli, Julia Diez‐Valero, Ignacio Martínez, Rolf Quam, Brian A. Keeling, Nicole M. Webb, Mercedes Conde‐Valverde   +6 more
wiley   +1 more source

Artificial hearing systems based on functional cochlea models

International Journal of Extreme Manufacturing
The cochlea is one of the most complex organs in the human body, exhibiting a complex interplay of characteristics in acoustic, mechanical, electrical, and biological functions.
Jinke Chang, Sita Tarini Clark, Iwan Roberts, Filip Hrncirik, Zhipeng Zhang, Manohar Bance   +5 more
doaj   +1 more source

Postnatal Development of Microglia-Like Cells in Mouse Cochlea

Neural Plasticity, 2018
Microglial cells are involved in surveillance and cleaning of the central nervous system. Recently, microglial-like cells (MLC) have been found in an adult cochlea and investigated for their role in cochlear inflammation. The presence and potential roles
Penghui Chen, Yongchuan Chai, Haijin Liu, Gen Li, Longhao Wang, Tao Yang, Hao Wu   +6 more
doaj   +1 more source

Can 3D-CRT meet the desired dose distribution to target and OARs in glioblastoma? A tertiary cancer center experience

CNS Oncology, 2020
Aim: The purpose of the study is to perform a dosimetric analysis of the doses received by planning target volume and organ at risks in the postoperative glioblastoma by using 3D-conformal radiotherapy to a total dose of 60 Gy in 30 fractions. Materials &
Narendra Kumar, Srinivasa GY, Chinna B Dracham, Treshita Dey, Renu Madan, Divya Khosla, Arun Oinum, Rakesh Kapoor   +7 more
doaj   +1 more source

Navigating the Genetic Risk of Chemotherapy‐Induced Hearing Loss in the Stria Vascularis

Clinical Pharmacology &Therapeutics, EarlyView.
Cisplatin is a chemotherapy drug that causes permanent hearing loss by damaging a critical tissue lining the inner ear, called the stria vascularis (SV). Currently, the molecular mechanisms of SV damage are largely unknown and the incidence of ototoxicity in patients cannot be reliably predicted.
Tara Lazetic, Deanne Nixie R. Miao, Britt I. Drögemöller, Alain Dabdoub, Julia M. Abitbol   +4 more
wiley   +1 more source

Fast Waves at the Base of the Cochlea.

PLoS ONE, 2015
Georg von Békésy observed that the onset times of responses to brief-duration stimuli vary as a function of distance from the stapes, with basal regions starting to move earlier than apical ones.
Alberto Recio-Spinoso, William S Rhode
doaj   +1 more source

The segregation of Calb1, Calb2, and Prph neurons reveals distinct and mixed neuronal populations and projections to hair cells in the inner ear and central nuclei

Developmental Dynamics, EarlyView.
Three populations of hair cells have a distinct expression of Calb1 and Calb2. (A, A′D) The central is highly positive for Calb1 while surrounding HC are positive for Calb2. Later, a calyx forms primarily with Calb1. (B, B′, D′, D″) Saccule and utricle start out positive for Calb2 but will upregulate the Calb1 in the striola that is primarily forming ...
Jeong Han Lee, Ebenezer N. Yamoah, Jennifer Kersigo, Karen Elliott, Niya LaRoda, Gabriela Pavlinkova, Bernd Fritzsch   +6 more
wiley   +1 more source