PMID- 15277717
OWN - NLM
STAT- MEDLINE
DCOM- 20041020
LR  - 20061115
IS  - 0289-0003 (Print)
IS  - 0289-0003 (Linking)
VI  - 21
IP  - 7
DP  - 2004 Jul
TI  - Intraovarian cavity leucocytes of viviparous fish, Neoditrema ransonneti 
      (Perciformes, Embiotocidae).
PG  - 739-46
AB  - To obtain basic information on the properties of the intraovarian cavity 
      leucocytes (IOCLs) of the viviparous teleost, Neoditrema ransonneti, 
      morphological characteristics and numerical changes of IOCLs during the 
      reproductive cycle were investigated. In the ovaries of newborn females, 
      leucocytes exuded into the lumen were observed first in November, prior to 
      insemination of semen. These cells were primarily macrophages, neutrophils and 
      lymphocytes. Among them, macrophages were invariably the largest population 
      throughout the reproductive cycle. They began to phagocytize spermatozoa in 
      December, when spermatozoa were first detected in the ovary. The number of IOCLs 
      gradually increased from November in the newborn female. However, this increase 
      is not ascribed to the effect of copulation or the presence of semen, because the 
      number of leucocytes also increased in non-mating fish. While developing embryos 
      were discharged into the ovarian lumen at the latest in January, a number of 
      spermatozoa and spermatozoa-phagocytizing macrophages were seen until March. Even 
      after the extinction of sperm cells, numerous IOCLs remained in the lumen and 
      coexisted with fetuses until their parturition. These results suggest that IOCLs 
      play roles in successful pregnancy, besides elimination of remaining spermatozoa.
FAU - Tazumi, Yoshimitsu
AU  - Tazumi Y
AD  - School of Fisheries Sciences, Kitasato University, Iwate 022-0101, Japan.
FAU - Nakamura, Osamu
AU  - Nakamura O
FAU - Watanabe, Tasuku
AU  - Watanabe T
LA  - eng
PT  - Comparative Study
PT  - Journal Article
PL  - Japan
TA  - Zoolog Sci
JT  - Zoological science
JID - 8702287
SB  - IM
MH  - Analysis of Variance
MH  - Animals
MH  - Female
MH  - Histological Techniques
MH  - Japan
MH  - Leukocytes/*ultrastructure
MH  - Male
MH  - Microscopy, Electron
MH  - Ovary/*anatomy & histology
MH  - Perciformes/*anatomy & histology
MH  - Reproduction/*physiology
MH  - Seasons
MH  - Spermatozoa/physiology
EDAT- 2004/07/28 05:00
MHDA- 2004/10/22 09:00
CRDT- 2004/07/28 05:00
PHST- 2004/07/28 05:00 [pubmed]
PHST- 2004/10/22 09:00 [medline]
PHST- 2004/07/28 05:00 [entrez]
AID - 10.2108/zsj.21.739 [doi]
PST - ppublish
SO  - Zoolog Sci. 2004 Jul;21(7):739-46. doi: 10.2108/zsj.21.739.