The role of the mesonephros
in cell differentiation and morphogenesis of the mouse fetal testis.
mesenchymal fibroblasts from the mesonephros
and mesenchymal fibroblasts from the gonadal ridge (Byskov, 1986; Buehr and McLaren, 1992; De Kretser and Kerr, 1994; Merchant-Larios et al.
The embryonic kidney develops through three stages: the pronephros, the mesonephros
, which both will regress throughout development, and the metanephros, which forms the final kidney.
is supplied by about 30 lateral branches, which develop as segmental arteries from dorsal aorta extending from C6 to L3 segment forming a network called rete arteriosum urogenitale.
It is suggested that regression of mesonephros
, deceleration in the growth rate of the liver, and the enlargement of the abdominal cavity might be the triggering factors of the the intestinal return (3-9).
sup] According to him, the developing mesonephros
, metanephros, and gonads are supplied by nine pairs of lateral mesonephric arteries arising from the dorsal aorta.
One theory for the development of SNT is that there is incomplete degeneration of a portion of the mesonephros
and subsequent development of peritoneal bands .
Like the mesonephros
, the skeletal system is also derived from the mesoderm, at approximately the same stage of development and at the same somite levels which are involved for the embryonic development of urogenital tract, which explains the skeletal abnormalities.
Conclusion: The proximal tubular and luminal diameters and epithelial height of the cells lining the proximal tubules of mesonephros
were affected by not only advancement in the mobile phones but also increase in the exposure time to the radiations.
longitudinal division of the urogenital ridge, incomplete degeneration of a part of the mesonephros
and development of peritoneal bands have been suggested, but none can explain all types of polyorchidism.
22-25) Deletion of both PAX8 and PAX2 genes prevents generation of the mesonephric (wolffian) duct and subsequent formation of all three embryonic kidneys (pronephros, mesonephros
, and metanephros).
Left and right gonads were visualized using a Nikon SMZ-U dissecting microscope (Nikon Instruments, Melville, NY), separated from adjacent mesonephros
, and transferred to individual labeled wells of ice-cold transport media until xenografting.