Masafumi Tetsuka
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Explore the profile of Masafumi Tetsuka including associated specialties, affiliations and a list of published articles.
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Articles
23
Citations
113
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Recent Articles
1.
Aoki R, Sasaki M, Tetsuka M, Mogoe T, Ishikawa H
J Vet Med Sci
. 2024 Feb;
86(4):451-457.
PMID: 38417877
In this study, we examined the morphological features of the placentas from 3 species of rorqual whales (Balaenopteridae), namely Bryde's (Balaenoptera brydei), sei (B. borealis), and common minke (B. acutorostrata)...
2.
Evaluation of Lipopolysaccharide and Interleukin-6 as Useful Screening Tool for Chronic Endometritis
Yoneda E, Kim S, Tomita K, Minase T, Kayano M, Watanabe H, et al.
Int J Mol Sci
. 2024 Feb;
25(4).
PMID: 38396694
Universal diagnostic criteria for chronic endometritis (CE) have not been established due to differences in study design among researchers and a lack of typical clinical cases. Lipopolysaccharides (LPSs) have been...
3.
Mukangwa M, Tetsuka M
J Reprod Dev
. 2023 Jun;
69(4):206-213.
PMID: 37344443
Progesterone (P4) and cortisol production increase in luteinized granulosa cells (LGCs) during the periovulatory period, but their interaction is not well established. Therefore, we investigated their interaction in cultured bovine...
4.
Anbo N, Suzuki A, Mukangwa M, Takahashi R, Muranishi Y, Tetsuka M
Theriogenology
. 2022 Jul;
189:183-191.
PMID: 35780557
In the bovine cumulus oophorus, 11β-hydroxysteroid dehydrogenase type 1 (HSD11B1)-mediated cortisol production dramatically increases during the periovulatory period. This event is closely associated with increased progesterone (P4) production, implying a...
5.
Mukangwa M, Takizawa K, Aoki Y, Hamano S, Tetsuka M
J Reprod Dev
. 2019 Dec;
66(1):75-81.
PMID: 31839646
Unlike sex steroids, mineralocorticoids have attracted limited attention in ovarian physiology. Recent studies on primates have indicated possible local synthesis and action of mineralocorticoids in the ovary. Here, we examined...
6.
Tetsuka M, Tanakadate M
Endocr Connect
. 2019 Jun;
8(7):1029-1039.
PMID: 31252401
The bovine cumulus-oocyte complex (COC) is capable of converting cortisone, an inert glucocorticoid to active cortisol. This mechanism is mediated by 11β-hydroxysteroid oxidoreductase type 1 (HSD11B1), whose expression dramatically increases...
7.
Myat T, Tetsuka M
Anim Sci J
. 2016 Apr;
88(1):63-71.
PMID: 27128796
Gossypol, a polyphenolic aldehyde found in cottonseed, has been shown to perturb steroidogenesis in granulosa and luteal cells of rats, pigs and cattle. However, little is known about the direct...
8.
Tetsuka M, Takagi R, Ambo N, Myat T, Zempo Y, Onuma A
Reproduction
. 2015 Nov;
151(1):73-82.
PMID: 26519454
Glucocorticoid action in target organs is regulated by relative activities of 11β-HSD type 1 (HSD11B1) that mainly converts cortisone to active cortisol and type 2 (HSD11B2) that inactivates cortisol to...
9.
Sasaki M, Amano Y, Hayakawa D, Tsubota T, Ishikawa H, Mogoe T, et al.
J Reprod Dev
. 2013 Dec;
60(1):62-7.
PMID: 24351524
In this study, we examined the existence and structure of areolae and the steroidogenesis of areolar trophoblast cells in the Antarctic minke whale placenta morphologically and immunohistochemically. Placentas were collected...
10.
Sasaki M, Amano Y, Hayakawa D, Tsubota T, Ishikawa H, Mogoe T, et al.
J Reprod Dev
. 2012 Dec;
59(2):159-67.
PMID: 23269486
There are few reports describing the structure and function of the whale placenta with the advance of pregnancy. In this study, therefore, the placenta and nonpregnant uterus of the Antarctic...