Pig Kidney: Anatomical Relationships Between the Renal Venous Arrangement and the Kidney Collecting System

Filho, Helio J. S. Bagetti; Pereira‐Sampaio, Marco A.; Favorito, Luciano A.; Sampaio, Francisco J.B.

doi:10.1016/j.juro.2007.11.040

Cited by 51 publications

(36 citation statements)

References 17 publications

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“…As opposed to the unipapillary structure of the rodent kidney, pigs have multipapillary kidneys similar to humans. The size of the kidney, the collecting system and the predominantly short-looped nephrons closely resemble the anatomical and physiological features of the human kidney (Sampaio et al, 1998;EskildJensen et al, 2007;Bagetti Filho et al, 2008). In view of the above, our study may be also useful for designing further studies in human medicine.…”

Section: Introductionsupporting

confidence: 64%

Identification of TRPM6 and TRPM7 expression changes in response to a diet supplemented with inulin in porcine kidney

et al. 2016

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Abstract. Magnesium is the fourth most abundant mineral element in vertebrates and the second most common intracellular cation. Recently identified Mg 2+ -specific channels -TRPM6 and TRPM7 -have been shown to be essential for whole-body and cellular Mg 2+ homeostasis. The aim of the study was to determine the effect of inulin on the expression of TRPM6 and TRPM7 in the renal cortex and medulla of growing pigs. The study was carried out on 16 Danbred × Duroc castrated male piglets fed a cereal-based diet without inulin or with 2 % addition of inulin from chicory root from the 10th day of life. In pigs fed a diet with inulin, TRPM6 expression was greater in both the renal cortex and medulla compared to the control group. The expression of TRPM7 in both the renal cortex and medulla in the control group and in piglets fed a diet enriched with inulin was relatively stable. To our knowledge, this is the first study aimed at the identification of TRPM6 and TRPM7 in the kidneys of pig. It is proposed that inulin addition to fodder resulted not only in a magnesium absorption increase, but also, due to prolonged low plasma Mg concentration of examined piglets, renal magnesium retention. Therefore, higher magnesium reabsorption via increased TRPM6 expression in the kidney was probably observed in order to supplement deficiencies of this element. Diet-unresponsive expression of TRPM7 supports the concept that this channel is not involved in the extracellular magnesium homeostasis.

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Section: Introductionsupporting

confidence: 64%

Identification of TRPM6 and TRPM7 expression changes in response to a diet supplemented with inulin in porcine kidney

et al. 2016

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“…Morphometric studies of the RAs in pigs have not been reported despite its importance for the implementation of experimental and hemodynamic procedures using the vascular components of the urinary system of the pig (Kaouk et al, 2003;Hammond et al, 2004;Bagetti Filho et al, 2008). In addition, the characterization of the RA and its branches in pigs enriches the teaching-learning processes of compared anatomy with this species.…”

Section: Introductionmentioning

confidence: 99%

Morphological Characterization of the Renal Arteries in the Pig: Comparative Analysis with the Human

2017

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SUMMARY:In spite of its importance as an experimental model, information on the renal artery in pigs is scarce. The objective of this work was to determine the morphological characteristics of the renal artery (RA) and its branches in pigs. One hundred and twenty one (121) pairs of kidneys of pigs destined to slaughter by stunning were studied. The RA and its branches were perfused with polyester resin (Palatal 85 % t Styrene 15 %) and subjected to KOH infusion (potassium hydroxide) for total corrosion. Calibers were measured, and trajectories and relations with adjacent arterial structures were evaluated. Continuous variables were assessed with Student's t test, and discrete variables with Pearson's chi square test. The significance level used was p<0.05. The origin of the RA was symmetric in 57 specimens (50.4 %), with the right renal artery being more cranial in 55 % of the cases. Single renal arteries were seen in 98.4 %, without significant side differences (p=0.31). The caliber and length of the RA were 5.11 mm (SD 1.35) and 30.1 mm (SD 8.63), respectively. A pattern of RA expression that causes one cranial and one caudal polar branch (Type I) was observed in 97.1 % of the cases. The distribution of the RA in cranial and caudal polar branches was found to be higher than what is described in the literature, since these morphometric features have not been reported in prior studies. These findings contribute to a better knowledge in the field of the compared anatomy of the kidney, and allow for applying the pig model in procedural and hemodynamic applications.

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“…Bagetti Filho et al [1] examined swine kidneys and made similar observations. They noted, that major of tributaries of the renal vein, i.e.…”

Section: Discussionmentioning

confidence: 65%

“…IVs, are located close to the ventral side of the renal pelvis. Bagetti Filho et al [1] mentions a small percentage (3.28% of cases) of major venous trunks, which run close to the dorsal side of the renal pelvis and which are directly inserted in the renal vein. In the studied material, the primary IVs inserted in the secondary IVs are the only veins, which can run close to the dorsal side of the renal pelvis.…”

Section: Discussionmentioning

confidence: 99%

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Intermediate veins in swine (Sus scrofa domestica) kidney: authors’ own anatomical classification

et al. 2015

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Pig Kidney: Anatomical Relationships Between the Renal Venous Arrangement and the Kidney Collecting System

Abstract: Although some results of intrarenal venous arrangement in pigs could not be completely transposed to humans, many similarities of pig and human kidneys support its use as the best animal model for urological procedures.

Cited by 51 publications

References 17 publications

Identification of TRPM6 and TRPM7 expression changes in response to a diet supplemented with inulin in porcine kidney

Identification of TRPM6 and TRPM7 expression changes in response to a diet supplemented with inulin in porcine kidney

Morphological Characterization of the Renal Arteries in the Pig: Comparative Analysis with the Human

Intermediate veins in swine (Sus scrofa domestica) kidney: authors’ own anatomical classification

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