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.jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117 Proc+Biol+Sci
2014 ; 281
(1792
): ä Nephropedia Template TP
gab.com Text
Twit Text FOAVip
Twit Text #
English Wikipedia
Nasal aerodynamics protects brain and lung from inhaled dust in subterranean
diggers, Ellobius talpinus
#MMPMID25143031
Moshkin MP
; Petrovski DV
; Akulov AE
; Romashchenko AV
; Gerlinskaya LA
; Ganimedov VL
; Muchnaya MI
; Sadovsky AS
; Koptyug IV
; Savelov AA
; Troitsky SY
; Moshkn YM
; Bukhtiyarov VI
; Kolchanov NA
; Sagdeev RZ
; Fomin VM
Proc Biol Sci
2014[Oct]; 281
(1792
): ä PMID25143031
show ga
Inhalation of air-dispersed sub-micrometre and nano-sized particles presents a
risk factor for animal and human health. Here, we show that nasal aerodynamics
plays a pivotal role in the protection of the subterranean mole vole Ellobius
talpinus from an increased exposure to nano-aerosols. Quantitative simulation of
particle flow has shown that their deposition on the total surface of the nasal
cavity is higher in the mole vole than in a terrestrial rodent Mus musculus
(mouse), but lower on the olfactory epithelium. In agreement with simulation
results, we found a reduced accumulation of manganese in olfactory bulbs of mole
voles in comparison with mice after the inhalation of nano-sized MnCl2 aerosols.
We ruled out the possibility that this reduction is owing to a lower
transportation from epithelium to brain in the mole vole as intranasal
instillations of MnCl2 solution and hydrated nanoparticles of manganese oxide MnO
· (H2O)x revealed similar uptake rates for both species. Together, we conclude
that nasal geometry contributes to the protection of brain and lung from
accumulation of air-dispersed particles in mole voles.