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Accumulation of eosinophils in the infundibulum of the bovine oviduct just after ovulation.

Kowsar R, Jiemtaweeboon S, Shirasuna K, Shimizu T, Sasaki M, Kitamura N, Miyamoto A - J. Vet. Med. Sci. (2014)

Bottom Line: The infundibula of the oviducts ipsilateral to the preovulatory dominant follicle had higher number of EOS than those of the oviducts ipsilateral to the mid-cycle corpus luteum.The number of EOS in the isthmus, but not in the ampulla, was higher in the outer layers (tunica muscularis and tunica serosa) than in the inner layers (tunica mucosa and tunica submucosa) during the estrous cycle.Thus, the EOS number varied with the region of the bovine oviduct, with greater number in the infundibula of the oviduct ipsilateral to the ovulated ovary, suggesting the impact of ovulation.

View Article: PubMed Central - PubMed

Affiliation: Graduate School of Animal and Food Hygiene, Obihiro University of Agriculture and Veterinary Medicine, Obihiro, Hokkaido 080-8555, Japan.

ABSTRACT
This study was to investigate the localization and distribution of eosinophils (EOS) in the bovine oviduct throughout the estrous cycle. Histological studies revealed more abundant EOS in the infundibula of the oviducts ipsilateral to the preovulatory dominant follicle and the ovulated ovary. The number of EOS was higher in the infundibula of the oviducts ipsilateral to the ovulated ovary than those of the oviducts contralateral to the ovulated ovary. The infundibula of the oviducts ipsilateral to the preovulatory dominant follicle had higher number of EOS than those of the oviducts ipsilateral to the mid-cycle corpus luteum. The number of EOS in the isthmus, but not in the ampulla, was higher in the outer layers (tunica muscularis and tunica serosa) than in the inner layers (tunica mucosa and tunica submucosa) during the estrous cycle. Thus, the EOS number varied with the region of the bovine oviduct, with greater number in the infundibula of the oviduct ipsilateral to the ovulated ovary, suggesting the impact of ovulation.

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Number of eosinophils in the different regions of the bovine oviduct during theestrous cycle. Pre-OV: preovulatory phase; Post-OV: postovulatory phase; Mid-CL:mid-cycle corpus luteum; IDF: oviducts ipsilateral to the preovulatory dominantfollicle; CDF: oviducts contralateral to the preovulatory dominant follicle; IOV:oviducts ipsilateral to the ovulated ovary; COV: oviducts contralateral to theovulated ovary; ICL: oviducts ipsilateral to the corpus luteum; CCL: oviductscontralateral to the corpus luteum; Infund: Infundibulum. Data are presented as themean ± SEM. a-d Different letters for black bars indicate significant differences(P<0.05) among the oviduct ipsilateral to dominant follicle,ovulated ovary and the corpus luteum. * Indicates significant differences(P<0.05) between ipsilateral and contralateral infundibula tothe ovulated ovary at postovulatory phase.
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fig_001: Number of eosinophils in the different regions of the bovine oviduct during theestrous cycle. Pre-OV: preovulatory phase; Post-OV: postovulatory phase; Mid-CL:mid-cycle corpus luteum; IDF: oviducts ipsilateral to the preovulatory dominantfollicle; CDF: oviducts contralateral to the preovulatory dominant follicle; IOV:oviducts ipsilateral to the ovulated ovary; COV: oviducts contralateral to theovulated ovary; ICL: oviducts ipsilateral to the corpus luteum; CCL: oviductscontralateral to the corpus luteum; Infund: Infundibulum. Data are presented as themean ± SEM. a-d Different letters for black bars indicate significant differences(P<0.05) among the oviduct ipsilateral to dominant follicle,ovulated ovary and the corpus luteum. * Indicates significant differences(P<0.05) between ipsilateral and contralateral infundibula tothe ovulated ovary at postovulatory phase.

Mentions: Number of EOS in the different regions of the oviduct during the estrouscycle: As shown in Fig. 1Fig. 1.


Accumulation of eosinophils in the infundibulum of the bovine oviduct just after ovulation.

Kowsar R, Jiemtaweeboon S, Shirasuna K, Shimizu T, Sasaki M, Kitamura N, Miyamoto A - J. Vet. Med. Sci. (2014)

Number of eosinophils in the different regions of the bovine oviduct during theestrous cycle. Pre-OV: preovulatory phase; Post-OV: postovulatory phase; Mid-CL:mid-cycle corpus luteum; IDF: oviducts ipsilateral to the preovulatory dominantfollicle; CDF: oviducts contralateral to the preovulatory dominant follicle; IOV:oviducts ipsilateral to the ovulated ovary; COV: oviducts contralateral to theovulated ovary; ICL: oviducts ipsilateral to the corpus luteum; CCL: oviductscontralateral to the corpus luteum; Infund: Infundibulum. Data are presented as themean ± SEM. a-d Different letters for black bars indicate significant differences(P<0.05) among the oviduct ipsilateral to dominant follicle,ovulated ovary and the corpus luteum. * Indicates significant differences(P<0.05) between ipsilateral and contralateral infundibula tothe ovulated ovary at postovulatory phase.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4197150&req=5

fig_001: Number of eosinophils in the different regions of the bovine oviduct during theestrous cycle. Pre-OV: preovulatory phase; Post-OV: postovulatory phase; Mid-CL:mid-cycle corpus luteum; IDF: oviducts ipsilateral to the preovulatory dominantfollicle; CDF: oviducts contralateral to the preovulatory dominant follicle; IOV:oviducts ipsilateral to the ovulated ovary; COV: oviducts contralateral to theovulated ovary; ICL: oviducts ipsilateral to the corpus luteum; CCL: oviductscontralateral to the corpus luteum; Infund: Infundibulum. Data are presented as themean ± SEM. a-d Different letters for black bars indicate significant differences(P<0.05) among the oviduct ipsilateral to dominant follicle,ovulated ovary and the corpus luteum. * Indicates significant differences(P<0.05) between ipsilateral and contralateral infundibula tothe ovulated ovary at postovulatory phase.
Mentions: Number of EOS in the different regions of the oviduct during the estrouscycle: As shown in Fig. 1Fig. 1.

Bottom Line: The infundibula of the oviducts ipsilateral to the preovulatory dominant follicle had higher number of EOS than those of the oviducts ipsilateral to the mid-cycle corpus luteum.The number of EOS in the isthmus, but not in the ampulla, was higher in the outer layers (tunica muscularis and tunica serosa) than in the inner layers (tunica mucosa and tunica submucosa) during the estrous cycle.Thus, the EOS number varied with the region of the bovine oviduct, with greater number in the infundibula of the oviduct ipsilateral to the ovulated ovary, suggesting the impact of ovulation.

View Article: PubMed Central - PubMed

Affiliation: Graduate School of Animal and Food Hygiene, Obihiro University of Agriculture and Veterinary Medicine, Obihiro, Hokkaido 080-8555, Japan.

ABSTRACT
This study was to investigate the localization and distribution of eosinophils (EOS) in the bovine oviduct throughout the estrous cycle. Histological studies revealed more abundant EOS in the infundibula of the oviducts ipsilateral to the preovulatory dominant follicle and the ovulated ovary. The number of EOS was higher in the infundibula of the oviducts ipsilateral to the ovulated ovary than those of the oviducts contralateral to the ovulated ovary. The infundibula of the oviducts ipsilateral to the preovulatory dominant follicle had higher number of EOS than those of the oviducts ipsilateral to the mid-cycle corpus luteum. The number of EOS in the isthmus, but not in the ampulla, was higher in the outer layers (tunica muscularis and tunica serosa) than in the inner layers (tunica mucosa and tunica submucosa) during the estrous cycle. Thus, the EOS number varied with the region of the bovine oviduct, with greater number in the infundibula of the oviduct ipsilateral to the ovulated ovary, suggesting the impact of ovulation.

Show MeSH
Related in: MedlinePlus