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In female rats, ethylene glycol treatment elevates protein expression of hepatic and renal oxalate transporter sat-1 (Slc26a1) without inducing hyperoxaluria (CROSBI ID 222634)

Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija

Breljak, Davorka ; Brzica, Hrvoje ; Vrhovac, Ivana ; Micek, Vedran ; Karaica, Dean ; Ljubojević, Marija ; Sekovanić, Ankica ; Jurasović, Jasna ; Rašić, Dubravka ; Peraica, Maja et al. In female rats, ethylene glycol treatment elevates protein expression of hepatic and renal oxalate transporter sat-1 (Slc26a1) without inducing hyperoxaluria // Croatian medical journal, 56 (2015), 447-459. doi: 10.3325/cmj.2015.56.447

Podaci o odgovornosti

Breljak, Davorka ; Brzica, Hrvoje ; Vrhovac, Ivana ; Micek, Vedran ; Karaica, Dean ; Ljubojević, Marija ; Sekovanić, Ankica ; Jurasović, Jasna ; Rašić, Dubravka ; Peraica, Maja ; Lovrić, Mila ; Schnedler, Nina ; Henjakovic, Maja ; Wegner, Waja ; Burckhardt, Gerhard ; Burckhardt, Birgitta C. ; Sabolić, Ivan ;

engleski

In female rats, ethylene glycol treatment elevates protein expression of hepatic and renal oxalate transporter sat-1 (Slc26a1) without inducing hyperoxaluria

Aim To investigate whether the sex-dependent expression of hepatic and renal oxalate transporter sat-1 (Slc26a1) changes in a rat model of ethylene glycol (EG)-induced hyperoxaluria. Methods Rats were given tap water (12 males and 12 females ; controls) or EG (12 males and 12 females ; 0.75% v/v in tap water) for one month. Oxaluric state was confirmed by biochemical parameters in blood plasma, urine, and tissues. Expression of sat-1 and rate-limiting enzymes of oxalate synthesis, alcohol dehydrogenase 1 (Adh1) and hydroxy-acid oxidase 1 (Hao1), was determined by immunocytochemistry (protein) and/or real time reverse transcription polymerase chain reaction (mRNA). Results EG-treated males had significantly higher (in μmol/L ; mean ± standard deviation) plasma (59.7 ± 27.2 vs 12.9 ± 4.1, P < 0.001) and urine (3716 ± 1726 vs 241 ± 204, P < 0.001) oxalate levels, and more abundant oxalate crystaluria than controls, while the liver and kidney sat-1 protein and mRNA expression did not differ significantly between these groups. EG-treated females, in comparison with controls had significantly higher (in μmol/L) serum oxalate levels (18.8 ± 2.9 vs 11.6 ± 4.9, P < 0.001), unchanged urine oxalate levels, low oxalate crystaluria, and significantly higher expression (in relative fluorescence units) of the liver (1.59 ± 0.61 vs 0.56 ± 0.39, P = 0.006) and kidney (1.77 ± 0.42 vs 0.69 ± 0.27, P < 0.001) sat-1 protein, but not mRNA. The mRNA expression of Adh1 was female dominant and that of Hao1 male-dominant, but both were unaffected by EG treatment. Conclusions An increased expression of hepatic and renal oxalate transporting protein sat-1 in EG-treated female rats could protect from hyperoxaluria and oxalate urolithiasis.

gender differences ; immunocytochemistry ; kidney ; liver ; nephrolithiasis ; oxalemia ; oxaluria ; real time RT-PCR ; urolitiasis ; Western blotting

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Podaci o izdanju

56

2015.

447-459

objavljeno

0353-9504

10.3325/cmj.2015.56.447

Povezanost rada

Temeljne medicinske znanosti

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