The use of hyaluronidase and glucosidase to remove mucus from the rat middle ear cavities for SEM studies

1992 ◽  
Vol 24 (3) ◽  
pp. 166-169 ◽  
Author(s):  
Magnus Nilsson ◽  
Sten Hellstr�m ◽  
Ulla Hedlund
Keyword(s):  
Middle Ear ◽  
Sem Studies

Sem Studies of the Inflammatory Changes of the Middle Ear Mucosa

1983 ◽  
Vol 10 (2) ◽  
pp. 79-86 ◽  
Author(s):  
Robert Shimooka ◽  
Koji Yajin ◽  
Yasuo Harada
Keyword(s):  
Middle Ear ◽  
Middle Ear Mucosa ◽  
Inflammatory Changes ◽  
Sem Studies

Ultrastructural Alterations in Sinusoidal Endothelial Fenestrae as a Result of Hypoxia

1976 ◽  
Vol 34 ◽  
pp. 168-169
Author(s):  
Waykin Nopanitaya ◽  
Raeford E. Brown ◽  
Joe W. Grisham ◽  
Johnny L. Carson
Keyword(s):  
Endothelial Cells ◽  
Experimental Model ◽  
Hepatic Lobule ◽  
Ultrastructural Alterations ◽  
Large Type ◽  
Sinusoidal Endothelial Fenestrae ◽  
General Size ◽  
Sem Studies

Mammalian endothelial cells lining hepatic sinusoids have been found to be widely fenestrated. Previous SEM studies (1,2) have noted two general size catagories of fenestrations; large fenestrae were distributed randomly while the small type occurred in groups. These investigations also reported that large fenestrae were more numerous and larger in the endothelial cells at the afferent ends of sinusoids or around the portal areas, whereas small fenestrae were more numerous around the centrilobular portion of the hepatic lobule. It has been further suggested that under some physiologic conditions small fenestrae could fuse and subsequently become the large type, but this is, as yet, unproven.We have used a reproducible experimental model of hypoxia to study the ultrastructural alterations in sinusoidal endothelial fenestrations in order to investigate the origin of occurrence of large fenestrae.

The Effect of Stapedectomy on the Loudness of One’s Own Voice

1965 ◽  
Vol 8 (3) ◽  
pp. 223-234 ◽  
Author(s):  
William Melnick
Keyword(s):  
Middle Ear ◽  
Normal Subjects ◽  
Sound Energy ◽  
Loudness Function ◽  
Before And After ◽  
Increased Sensitivity

Five subjects with normal middle ear mechanisms, and otosclerotic patients, before and after stapedectomy, matched the loudness of their voices to the loudness of a 125-cps-sawtooth noise. The results showed loudness matching functions with gradual slopes, less than 1.00, for the normal subjects and the patients prior to stapedectomy. Post-surgically, the loudness function for the patients increased in steepness to considerably more than 1.00. These results are explained, most logically, in terms of increased sensitivity of the altered middle ear to sound energy generated by the listener’s own voice.

Are mucin genes yet to be cloned expressed by human middle ear mucosa?

1998 ◽  
Vol 23 (3) ◽  
pp. 265-265 ◽  
Author(s):  
Hutton ◽  
Birchall ◽  
French ◽  
Kubba ◽  
Severn ◽  
...  
Keyword(s):  
Middle Ear ◽  
Middle Ear Mucosa ◽  
Mucin Genes ◽  
Human Middle Ear

The effect of anaesthetic agents on tympanometry and middle ear effusions

1998 ◽  
Vol 23 (3) ◽  
pp. 265-265
Author(s):  
Fish ◽  
Banerjee ◽  
Jennings ◽  
Narula
Keyword(s):  
Middle Ear ◽  
Anaesthetic Agents

Cholesteatoma of the Middle Ear and Mastoid

1988 ◽  
Vol 21 (2) ◽  
pp. 265-293 ◽  
Author(s):  
Mahmood F. Mafee ◽  
Barry C. Levin ◽  
Edward L. Applebaum ◽  
Mario Campos ◽  
Charles F. James
Keyword(s):  
Middle Ear

Middle-ear problems in childhood

JAMA ◽  
1966 ◽  
Vol 196 (10) ◽  
pp. 834-838
Author(s):  
F. W. Davison
Keyword(s):  
Middle Ear
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