A different perspective on the filtration barrier after kidney stone formation: An immunohistochemical and biochemical study

Karabulut D., Kaymak E., Yalçin B., Ulger H., Keti D.

UROLITHIASIS, cilt.49, sa.3, ss.201-210, 2021 (SCI-Expanded) identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 49 Sayı: 3
  • Basım Tarihi: 2021
  • Doi Numarası: 10.1007/s00240-020-01227-1
  • Dergi Adı: UROLITHIASIS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, BIOSIS, CAB Abstracts, EMBASE, MEDLINE, Veterinary Science Database
  • Sayfa Sayıları: ss.201-210
  • Anahtar Kelimeler: Kidney stones, Filtration barrier, Immunohistochemistry, Rat, CALCIUM-OXALATE NEPHROLITHIASIS, ENDOPLASMIC-RETICULUM STRESS, INDUCED UROLITHIASIS, SLIT DIAPHRAGM, NIGELLA-SATIVA, EXPRESSION, PODOCYTES, EXTRACT, NEPHRIN, INJURY
  • Erciyes Üniversitesi Adresli: Evet

Özet

The aim of this study is to investigate whether the filtration barrier is affected by experimental kidney stone formation. Thirty-two rats divided into 4 equally groups (n = 8) at random. Group I control; Group II 1% ethylene glycol; Group III 1% Ethylene glycol + 0.25% Ammonium chloride; Group IV 1% Ethylene glycol + 0.5% Ammonium chloride group. Tissues applied hematoxylin-eosin, periodic-acid-Schiff, Pizzolato's staining. Immunohistochemically stained with integrin alpha 3 beta 1, type IV collagen, laminin, nephrin, CD2-associated protein (CD2AP) and podocin to show the filtration barrier structure. The TUNEL method was used for apoptosis. The amount of calcium, magnesium, creatinine and uric acid in urine and blood samples, also urine microprotein determined. Stones were formed in all experimental groups. Urine calcium, creatinine, uric acid levels decreased, magnesium levels were not changed. No statistically significant change was observed in blood serum results and TUNEL analysis. Immunohistochemical results showed an increase in nephrin, podocin, CD2AP, laminin and a decrease in integrin alpha 3 beta 1 and type IV collagen. Consequently, there is an increase in the expression densities of the proteins incorporated in the structure to prevent loss of functionality in the cellular part supporting the structure against a weakening of the basement membrane structure in the glomerular structure in which urine is filtered.