Recombinant human growth hormone exacerbates chronic puromycin aminonucleoside nephropathy in rats.

Abstract:

:Growth failure is a cardinal feature of chronic renal failure in children. Administration of recombinant human growth hormone (rhGH) ameliorates this problem but may adversely affect the kidney and hasten the progression to end-stage renal disease. We conducted experiments to examine the impact of rhGH on the severity of chronic puromycin aminonucleoside (PAMN) nephropathy in rats. The glomerulopathy was induced by serial injections of PAMN over a 12 week period. Experimental animals (N = 6) received rhGH, 0.5 mg per dose, three times weekly, while control rats (N = 6) received hormone vehicle. rhGH had no effect on weight gain, hematocrit, or blood pressure in rats with the experimental renal disease. Urinary protein excretion increased approximately 50% in rhGH-treated rats with chronic PAMN nephropathy compared to untreated animals between four to eight weeks of the observation period. After 12 weeks, the inulin clearance was significantly lower in rhGH-treated rats, 0.26 +/- 0.05 versus 0.50 +/- 0.06 ml/min/100 g body wt in control PAMN animals, P < 0.05. Compared to untreated rats with PAMN nephropathy, administration of rhGH increased the extent of segmental glomerulosclerosis from 11 +/- 3 to 46 +/- 9% (P < 0.005) and elevated the tubulointerstitial injury score from 0.5 +/- 0.1 to 1.4 +/- 0.4 (P < 0.05). Furthermore, glomerular hypertrophy was enhanced in animals with chronic PAMN nephropathy given rhGH, as evidenced by a larger glomerular planar area, 9.2 +/- 0.3 x 10(-3) versus 11.9 +/- 0.5 x 10(-3) mm2, P < 0.005.(ABSTRACT TRUNCATED AT 250 WORDS)

journal_name

Kidney Int

journal_title

Kidney international

authors

Trachtman H,Futterweit S,Schwob N,Maesaka J,Valderrama E

doi

10.1038/ki.1993.380

subject

Has Abstract

pub_date

1993-12-01 00:00:00

pages

1281-8

issue

6

eissn

0085-2538

issn

1523-1755

pii

S0085-2538(15)58261-6

journal_volume

44

pub_type

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