head kidney


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pro·neph·ros

, pl.

pro·neph·roi

(prō-nef'ros, -roy),
1. The definitive excretory organ of primitive fishes. Synonym(s): head kidney
2. In the embryos of higher vertebrates, a vestigial structure consisting of a series of tortuous tubules emptying into the cloaca by way of the primary nephric duct; in the human embryo, the pronephros is a very rudimentary and temporary structure, followed by the mesonephros and still later by the metanephros.
Synonym(s): forekidney, primordial kidney
[pro- + G. nephros, kidney]

head kidney

See pronephros.
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References in periodicals archive ?
Trout head kidney incubated with 10 ug/ml LPS showed an increased expression of TNF- a (Teles et al.
In present study we compared the time and dose dependant expression of TNF-a in head kidney and spleen of Cirrihinusmrigala on stimulation with bacterial and viral synthetic antigens.
ANALYSIS OF TNF-a GENE EXPRESSION WITH LIPOPOLYSACCCHARIDE (LPS) AND POLYINOSINIC; POLYCYTIDYLIC ACID (POLY I.C) STIMULATION IN HEAD KIDNEY AND SPLEEN OF CIRRHINUS MRIGALA
2011) stimulate the expression of IL-8 in human monocytic cell lines and the head kidney of Nile tilapia, respectively.
Gene expression analyses in head kidney and spleen of Nile tilapia (Oreochromis niloticus) infected with Streptococcus agalactiae by expressed sequence tags (ESTs) technique.
Effects of Holy Basil (Ocimum sanctum) Extract on the Growth, Immune Response and Disease Resistance against Streptococcus agalactiae of Nile Tilapia (Oreochromis niloticus)
From head kidney was obtained a phase of leukocytes (HKL) enriched in macrophages, which were grown successfully.
Parameters to evaluate the immunostimulant effect of Zymosan A in head kidney leucocytes (HKL) of salmonids/Parametros para la evaluacion del efecto de Zimosan A como inmunoestimulante sobre leucocitos de rinon cefalico (HKL) de salmonidos
Peritoneal and head kidney cell response to intraperitoneally injected yeast glucan in Atlantic salmon (Salmon salar L.
Clearance of colloidal carbon from the blood of African Catfish (Clarias Gariepinus)

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