scholarly journals Lipid peroxidation and apoptotic response in rat brain areas induced by long‐term administration of nandrolone: the mutual crosstalk between ROS and NF ‐ kB

2016 ◽  
Vol 20 (4) ◽  
pp. 601-612 ◽  
Author(s):  
Emanuela Turillazzi ◽  
Margherita Neri ◽  
Daniela Cerretani ◽  
Santina Cantatore ◽  
Paola Frati ◽  
...  
Antioxidants ◽  
2021 ◽  
Vol 11 (1) ◽  
pp. 37
Author(s):  
Jan Homolak ◽  
Ana Babic Perhoc ◽  
Ana Knezovic ◽  
Jelena Osmanovic Barilar ◽  
Davor Virag ◽  
...  

Galactose is a ubiquitous monosaccharide with important yet incompletely understood nutritive and physiological roles. Chronic parenteral d-galactose administration is used for modeling aging-related pathophysiological processes in rodents due to its ability to induce oxidative stress (OS). Conversely, chronic oral d-galactose administration prevents and alleviates cognitive decline in a rat model of sporadic Alzheimer’s disease, indicating that galactose may exert beneficial health effects by acting in the gut. The present aim was to explore the acute time-response of intestinal redox homeostasis following oral administration of d-galactose. Male Wistar rats were euthanized at baseline (n = 6), 30 (n = 6), 60 (n = 6), and 120 (n = 6) minutes following orogastric administration of d-galactose (200 mg/kg). The overall reductive capacity, lipid peroxidation, the concentration of low-molecular-weight thiols (LMWT) and protein sulfhydryls (SH), the activity of Mn and Cu/Zn superoxide dismutases (SOD), reduced and oxidized fractions of nicotinamide adenine dinucleotide phosphates (NADPH/NADP), and the hydrogen peroxide dissociation rate were analyzed in duodenum and ileum. Acute oral administration of d-galactose increased the activity of SODs and decreased intestinal lipid peroxidation and nucleophilic substrates (LMWT, SH, NADPH), indicating activation of peroxidative damage defense pathways. The redox system of the small intestine can acutely tolerate even high luminal concentrations of galactose (0.55 M), and oral galactose treatment is associated with a reduction rather than the increment of the intestinal OS. The ability of oral d-galactose to modulate intestinal OS should be further explored in the context of intestinal barrier maintenance, and beneficial cognitive effects associated with long-term administration of low doses of d-galactose.


2015 ◽  
Vol 99 ◽  
pp. 696-704 ◽  
Author(s):  
Mostafa El Mansari ◽  
Agnes Crnic ◽  
Chris Oosterhof ◽  
Pierre Blier

2007 ◽  
Vol 194 (1) ◽  
pp. 73-81 ◽  
Author(s):  
Yukie Kawahara ◽  
Hiroshi Kawahara ◽  
Fumi Kaneko ◽  
Masatoshi Tanaka

1994 ◽  
Vol 25 (2) ◽  
pp. 161-168 ◽  
Author(s):  
Mira Melzacka ◽  
Nina Weiner ◽  
Christine Heim ◽  
Rainald Schmidt-Kastner ◽  
Maria Sieklucka ◽  
...  

Life Sciences ◽  
1983 ◽  
Vol 33 ◽  
pp. 369-372 ◽  
Author(s):  
Charles B. Smith ◽  
Peggie J. Hollingsworth ◽  
Joann J. Geer ◽  
Hylan C. Moises

1992 ◽  
Vol 31 (4) ◽  
pp. 343-347 ◽  
Author(s):  
S CACCIA ◽  
C FRACASSO ◽  
S GARATTINI ◽  
G GUISO ◽  
S SARATI

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