The Secretory Cells of the Goat Oviductal Epithelium: An Ultrastructural Study.

Morita, Maki; Miyamoto, Hajime; Ishii, Takashi; Sugimoto, Miki

doi:10.1262/jrd.41.123

Cited by 6 publications

(4 citation statements)

References 12 publications

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“…Murray (1995) and Hollis et al (1984) investigated the ewe oviduct suggesting that shedding of extruded secretory cells into the oviductal lumen during the luteal phase was a process of cell death. Moreover, the secretory cell in goats' ampullar epithelium showed entire atrophy and apoptosis-like fragments were observed in the late luteal phase (Morita et al 1995). Taken together, the apoptosis in the oviductal epithelium of cats has been exhibited to be hormonally regulated, induced by a rise of progesterone coupled with a decline in serum oestradiol (Bareither and Verhage 1981).…”

Section: Discussionmentioning

confidence: 92%

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Light and Scanning Electron Microscopic Studies of Oviductal Epithelium in Thai Swamp Buffalo (Bubalus bubalis) at the Follicular and Luteal Phases

Tienthai

Sajjarengpong²,

Techakumphu

2009

Reprod Domestic Animals

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The purpose of this study was to investigate the morphological changes in the epithelium of Thai swamp buffalo oviducts at the follicular and luteal phases by histological technique and scanning electron microscopy. The samples from the infundibulum, ampulla, isthmus and uterotubal junction (UTJ) of the oviduct were taken immediately after slaughter at the local abattoir. Noticeable cyclic changes were observed on the epithelial surface of the infundibulum and ampulla, but few changes were present in the isthmus and UTJ. At the follicular phase, the epithelium of infundibulum and ampulla were densely covered with ciliated cells whose cilia concealed the apical processes of the secretory cells. In contrast, the secretory cells dominated in the epithelium at the luteal phase and most of the ciliated cells were hidden by the bulbous processes of these cells. In the isthmus and UTJ at the follicular and luteal phases, the secretory cells were almost flat or gently rounded and covered with numerous microvilli at their apical surface. In conclusion, the histological and ultrastructural observation of Thai swamp oviduct epithelium revealed marked cyclic changes in the cellular differences associated with the main functions of segmental variations.

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Section: Discussionmentioning

confidence: 92%

“…(1984) investigated the ewe oviduct suggesting that shedding of extruded secretory cells into the oviductal lumen during the luteal phase was a process of cell death. Moreover, the secretory cell in goats’ ampullar epithelium showed entire atrophy and apoptosis‐like fragments were observed in the late luteal phase (Morita et al. 1995).…”

Section: Discussionmentioning

confidence: 99%

Light and Scanning Electron Microscopic Studies of Oviductal Epithelium in Thai Swamp Buffalo (Bubalus bubalis) at the Follicular and Luteal Phases

Tienthai

Sajjarengpong²,

Techakumphu

2009

Reprod Domestic Animals

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“…The ampulla is known to be the site of fertilization. Estrous cycle-specific changes in morphology of oviductal epithelium have been described in several mammalian species including goat [2], sheep [3], cat [4], hamster [5], rat [6], human [7,8], and nonhuman primates [9][10][11][12]. The oviductal epithelium consists of ciliated cells and non-ciliated secretory cells.…”

mentioning

confidence: 99%

Alterations in Cell Proliferation and Morphology of Ampullar Epithelium of the Mouse Oviduct during the Estrous Cycle.

Morita

Miyamoto

Sugimoto

et al. 1997

Journal of Reproduction and Development

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Abstract. We examined cell proliferation and morphological changes in the ampullar epithelium of mouse oviducts. Oviducts were labeled in vivo by administration of 5-bromo-2'-deoxyuridine (BrdU) on each day of the estrous cycle. The frequency of the ampullar S-phase epithelial cells labeled with BrdU changed according to the estrous cycle, with the highest proportion at proestrus. The morphology of the ampullar epithelia also changed during the estrous cycle. In estrus and metestrus, most of the ampullar epithelial cells were comprised of non-ciliated secretory cells. In diestrus and proestrus, however, the ciliated cells were dominant among the ampullar epithelial cells. Electron microscopic observations indicated that the ampullar non-ciliated secretory cells in metestrus had numerous secretory granules, and fusion of these granules with the plasma membrane, i.e. exocytosis, was evident. The present results indicate that cell proliferation and morphology of ampullar epithelia of mouse oviducts vary according to phase of the estrous cycle.

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“…; Morita et al. ; Tienthai et al. ; Mokhtar ), and some published data exist as concerns ultrastructural and histometric features of cyclic changes in ampullary and isthmic segments of the uterine tube in the goat (Abe et al.…”

Section: Introductionmentioning

confidence: 99%

Morphology and Aquaporin Immunohistochemistry of the Uterine Tube of Saanen Goats (Capra hircus): Comparison Throughout the Reproductive Cycle

Arrighi

Bosi

Frattini

et al. 2016

Reprod Domestic Animals

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The expression of six different aquaporins (AQP1, 2, 3, 4, 5 and 9), integral membrane water channels that facilitate bi-directional passive movement of water, was investigated by immunohistochemistry in the uterine tube of pre-pubertal and adult Saanen goats (Capra hircus), comparing the different phases of the oestrous cycle. Regional morphology and secretory processes were markedly different during the goat oestrous cycle. The tested AQP molecules showed different expression patterns in comparison with already studied species. AQP1-immunoreactivity was evidenced at the endothelium of blood vessels and in nerve fibres, regardless of the tubal tract and cycle period. AQP4-immunoreactivity was shown on the lateral plasmalemma in the basal third of the epithelial cells at infundibulum and ampulla level in the cycling goats, more evidently during follicular than during luteal phase. No AQP4-immunoreactivity was noticed at the level of the isthmus region, regardless of the cycle phase. AQP5-immunoreactivity, localized at the apical surface of epithelial cells, increased from pre-puberty to adulthood. Thereafter, AQP5-immunoreactivity was prominent during the follicular phase, when it strongly decorated the apical plasmalemma of all epithelial cells at ampullary level. During luteal phase, immunoreactivity was discontinuous, being weak to strong at the apex of the secretory cells protruding into the lumen. In the isthmus region, the strongest AQP5-immunoreactivity was seen during follicular phase, with a clear localization in the apical plasmalemma of all the epithelial cells and also on the lateral plasmalemma. AQP2, 3 and 9 were undetectable all along the goat uterine tube. Likely, a collaboration of different AQP molecules sustains the fluid production in the goat uterine tube. AQP1-mediated transudation from the blood capillaries, together with permeation of the epithelium by AQP4 in the basal rim of the epithelial cells and final intervening of apical AQP5, could be involved in fluid production as well as in secretory processes.

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The Secretory Cells of the Goat Oviductal Epithelium: An Ultrastructural Study.

Cited by 6 publications

References 12 publications

Light and Scanning Electron Microscopic Studies of Oviductal Epithelium in Thai Swamp Buffalo (Bubalus bubalis) at the Follicular and Luteal Phases

Light and Scanning Electron Microscopic Studies of Oviductal Epithelium in Thai Swamp Buffalo (Bubalus bubalis) at the Follicular and Luteal Phases

Alterations in Cell Proliferation and Morphology of Ampullar Epithelium of the Mouse Oviduct during the Estrous Cycle.

Morphology and Aquaporin Immunohistochemistry of the Uterine Tube of Saanen Goats (Capra hircus): Comparison Throughout the Reproductive Cycle

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