Deprecated: Implicit conversion from float 209.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 209.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 209.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 209.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 209.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 209.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 209.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 243.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 243.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Warning: imagejpeg(C:\Inetpub\vhosts\kidney.de\httpdocs\phplern\26369337
.jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117 Respir+Res
2015 ; 16
(1
): 106
Nephropedia Template TP
gab.com Text
Twit Text FOAVip
Twit Text #
English Wikipedia
Sulforaphane improves the bronchoprotective response in asthmatics through
Nrf2-mediated gene pathways
#MMPMID26369337
Brown RH
; Reynolds C
; Brooker A
; Talalay P
; Fahey JW
Respir Res
2015[Sep]; 16
(1
): 106
PMID26369337
show ga
BACKGROUND: It is widely recognized that deep inspiration (DI), either before
methacholine (MCh) challenge (Bronchoprotection, BP) or after MCh challenge
(Bronchodilation, BD) protects against this challenge in healthy individuals, but
not in asthmatics. Sulforaphane, a dietary antioxidant and antiinflammatory
phytochemical derived from broccoli, may affect the pulmonary bronchoconstrictor
responses to MCh and the responses to DI in asthmatic patients. METHODS:
Forty-five moderate asthmatics were administered sulforaphane (100 ?mol daily for
14 days), BP, BD, lung volumes by body-plethsmography, and airway morphology by
computed tomography (CT) were measured pre- and post sulforaphane consumption.
RESULTS: Sulforaphane ameliorated the bronchoconstrictor effects of MCh on FEV1
significantly (on average by 21 %; p?=?0.01) in 60 % of these asthmatics.
Interestingly, in 20 % of the asthmatics, sulforaphane aggravated the
bronchoconstrictor effects of MCh and in a similar number was without effect,
documenting the great heterogeneity of the responsiveness of these individuals to
sulforaphane. Moreover, in individuals in whom the FEV1 response to MCh challenge
decreased after sulforaphane administration, i.e., sulforaphane was protective,
the activities of Nrf2-regulated antioxidant and anti-inflammatory genes
decreased. In contrast, individuals in whom sulforaphane treatment enhanced the
FEV1 response to MCh, had increased expression of the activities of these genes.
High resolution CT scans disclosed that in asthmatics sulforaphane treatment
resulted in a significant reduction in specific airway resistance and also
increased small airway luminal area and airway trapping modestly but
significantly. CONCLUSION: These findings suggest the potential value of blocking
the bronchoconstrictor hyperresponsiveness in some types of asthmatics by
phytochemicals such as sulforaphane.