May the fetal kidney measurements be collateral criteria on the prediction of gestational age in cattle?

Amaç: Bu çalışma gestasyonel yaş ile böbreklerin gelişimsel morfometrik ölçüleri arasındaki ilişkiyi araştırmayı amaçlamaktadır. Gereç ve Yöntem: Bu çalışmada, 30 adet Holstein ırkı sığır fötusu kullanıldı. Gebeliğin erken, orta ve geç dönemi olmak üzere her bir döneme ait 10 fötus değerlendirildi. Buna göre, toplamda 60 böbrek bilateral disseksiyon sonrası üç farklı renal parametre (uzunluk, genişlik, kalınlık) bakımından değerlendirmeye alındı. Böbreklerden elde edilen morfometrik verilerin istatistiksel analizleri yapıldı. Bulgular: Genel olarak gebelik süresince tüm renal ölçümler gestasyonel yaş ile önemli derecede korelasyon gösteriyordu. Sağ ve sol böbreğin uzunluk ve genişliğinin gestasyonel yaş ile yüksek derecede (R2≥0.90) korelasyonlu olmasına karşın, her iki böbreğin kalınlığı gestasyonel yaş ile daha az (R2≤0.86) korelasyon göstermekteydi. Tüm renal parametreler gebeliğin erken, orta ve geç dönemindeki alın-sağrı uzunlukları ile de önemli derecede korelasyonluydu, ancak gebeliğin geç döneminde sol böbreğin aksine sağ böbrek kalınlığı ile alın-sağrı uzunluğu arasındaki korelasyon önemsizdi. Ayrıca sol böbreğin cranial genişliği ile alın-sağrı uzunluğu arasındaki korelasyon da önemsiz olarak bulundu. Öneri: Organ gelişimi ve gestasyonel yaş arasındaki korelasyona anatomik bir yaklaşımda bulunan bu çalışmanın sonuçlarına göre, böbrek ölçümleri gestasyonel yaşın tahmin edilmesinde yardımcı bir kriter olarak kullanılabilir.

Fötal böbrek ölçümleri sığırlarda gestasyonel yaşın tahmin edilmesinde yardımcı bir kriter olabilir mi?

Aim: This study aims to investigate the relationship between gestational age and developmental morphometric measurements of the kidneys. Materials and Methods: In the present study, 30 Holstein cattle fetuses were used. Ten fetuses, belonging to each of the early, mid- and late gestational stages were evaluated. Accordingly, in total, 60 kidneys were assessed after bilateral dissection for three different renal parameters (length, width, thickness). The morphometric data obtained from the kidneys was subjected to statistical analysis. Results: In general, throughout gestation, all renal measurements were significantly correlated with gestational age. The length and width of the right and left kidneys were highly (R2≥0.90) correlated with gestational age but, in comparison, the thickness of both kidneys was less correlated (R2≤0.86) with gestational age. All of the renal parameters were significantly correlated with the crown-rump length in the early, mid- and late stages of gestation but, the correlation between the thickness of the right kidney and crown-rump length was not significant in the late stage of gestation contrary to the left kidney. Moreover, the correlation between the cranial width of the left kidney and the crown-rump length was also shown to be insignificant. Conclusion: According to the results of this study, which was based on an anatomical approach to the correlation between organ development and gestational age; kidney measurements can be used as collateral criteria for the prediction of gestational age.

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