Researcher profile · Semantic Scholar

K. Shimamura

h-index: 16
Works: 27
Citations: 1,801

Most-cited papers

Oxidative stress impairs oocyte quality and melatonin protects oocytes from free radical damage and improves fertilization rate
H. Tamura, A. Takasaki, I. Miwa, Ken Taniguchi +10 more
2008Journal of Pineal Research653 citations
Semantic Scholar
Pathophysiologic features of "thin" endometrium.
I. Miwa, H. Tamura, A. Takasaki, Y. Yamagata +2 more
2009Fertility and Sterility223 citations Open access
Semantic Scholar
Endometrial growth and uterine blood flow: a pilot study for improving endometrial thickness in the patients with a thin endometrium.
A. Takasaki, H. Tamura, I. Miwa, T. Taketani +2 more
2010Fertility and Sterility201 citations Open access
Semantic Scholar
Changes in activity of superoxide dismutase in the human endometrium throughout the menstrual cycle and in early pregnancy.
N. Sugino, K. Shimamura, S. Takiguchi, H. Tamura +6 more
1996Human Reproduction144 citations
Semantic Scholar
Protective role of melatonin in progesterone production by human luteal cells
T. Taketani, H. Tamura, A. Takasaki, L. Lee +8 more
2011Journal of Pineal Research90 citations
Semantic Scholar
Progesterone inhibits superoxide radical production by mononuclear phagocytes in pseudopregnant rats.
Norihiro Sugino, K. Shimamura, H. Tamura, M. Ono +3 more
1996Endocrinology69 citations Open access
Semantic Scholar
Ovary and ovulation: Nitric oxide concentrations in the follicular fluid and apoptosis of granulosa cells in human follicles
Norihiro Sugino, S. Takiguchi, M. Ono, H. Tamura +7 more
199668 citations
Semantic Scholar
Changes in lipid peroxide and antioxidant enzyme activities in corpora lutea during pseudopregnancy in rats.
K. Shimamura, Norihiro Sugino, Yuichiro Yoshida, Yasuhiko Nakamura +2 more
1995Journal of Reproduction and Fertility62 citations Open access
Semantic Scholar
Luteal blood flow and luteal function
A. Takasaki, H. Tamura, Ken Taniguchi, H. Asada +6 more
2009Journal of Ovarian Research56 citations Open access
Semantic Scholar
Changes in blood-flow impedance of the human corpus luteum throughout the luteal phase and during early pregnancy.
H. Tamura, A. Takasaki, Ken Taniguchi, Aki Matsuoka +2 more
2008Fertility and Sterility53 citations Open access
Semantic Scholar
Melatonin as a new drug for improving oocyte quality
A. Takasaki, Yasuhiko Nakamura, H. Tamura, K. Shimamura +1 more
2003Reproductive Medicine and Biology45 citations Open access
Semantic Scholar
Usefulness of intermittent clomiphene citrate treatment for women with polycystic ovarian syndrome that is resistant to standard clomiphene citrate treatment
A. Takasaki, I. Tamura, Maki Okada‐Hayashi, T. Orita +4 more
2018Reproductive Medicine and Biology34 citations Open access
Semantic Scholar
Effects of restraint stress on luteal function in rats during mid-pregnancy.
Norihiro Sugino, Yasuhiko Nakamura, N. Okuno, K. Shimamura +3 more
1994Journal of Reproduction and Fertility29 citations Open access
Semantic Scholar
A pilot study to prevent a thin endometrium in patients undergoing clomiphene citrate treatment
A. Takasaki, H. Tamura, T. Taketani, K. Shimamura +2 more
2013Journal of Ovarian Research24 citations Open access
Semantic Scholar
Changes in interleukin-1 production of peritoneal macrophages during estrous cycle in golden hamsters.
Y. Yoshida, Yasuhiko Nakamura, N. Sugino, K. Shimamura +2 more
1996Endocrine journal17 citations Open access
Semantic Scholar
Real prevalence of neural tube defects in Japan: How many of such pregnancies have been terminated?
A. Kondo, Shinobu Akada, Kunihisa Akiyama, M. Arakawa +33 more
2019Congenital Anomalies16 citations Open access
Semantic Scholar
High incidence of decidualization failure in infertile women
I. Tamura, Yumiko Doi-Tanaka, A. Takasaki, K. Shimamura +6 more
2024Reproductive Medicine and Biology8 citations Open access
Semantic Scholar
Luteal blood flow in patients undergoing GnRH agonist long protocol
A. Takasaki, I. Tamura, Fumie Kizuka, L. Lee +7 more
2011Journal of Ovarian Research5 citations Open access
Semantic Scholar
[Involvement of stimulatory effect of prostaglandin F2 alpha on superoxide radical production by macrophages in corpus luteum regression].
N. Sugino, K. Shimamura, H. Tamura, M. Ono +2 more
1996Nihon Sanka Fujinka Gakkai zasshi4 citations
Semantic Scholar
O-230: Pathophysiological features of thin endometrium
H. Tamura, I. Miwa, Ken Taniguchi, K. Shimamura +2 more
20063 citations Open access
Semantic Scholar
A study of the luteolytic mechanism of the antiprogesterone RU486 during the late-luteal phase in pseudopregnant rats.
Yasuhiko Nakamura, H. Tamura, M. Ono, K. Shimamura +4 more
1996Journal of Endocrinology2 citations
Semantic Scholar
P-418: Changes in blood flow in the human corpus luteum throughout the menstrual cycle and during early pregnancy
Ken Taniguchi, H. Tamura, I. Miwa, K. Shimamura +2 more
20060 citations Open access
Semantic Scholar
Changes in lnterleukin-1 Production Macrophages during Estrous Cycle in of Peritoneal Golden Hamsters
Y. Yoshida, Yasuhiko Nakamura, N. Sugino, K. Shimamura +1 more
20060 citations
Semantic Scholar
IS-13 Changes in superoxide radical production by mononuclear phagocytes in the corpus luteum during pseudopregnancy in rats
N. Sugino, K. Shimamura, S. Takiguchi, H. Tamura +3 more
19960 citations
Semantic Scholar
Ovarian Interleukin-1β mRNA expression in the PMSG/hCG treated immature rat
M. Ono, Yasuhiko Nakamura, N. Sugino, Y. Yoshida +4 more
19950 citations
Semantic Scholar
Clinical value of biapenem in obstetrics and gynecology
N. Takasugi, O. Takeda, H. Suehiro, M. Sase +8 more
19940 citations
Semantic Scholar
74 The test for the sperm fertile capacity using Sperm Persistent Motility after 24 hours (SPM-24).
M. Kobayashi, T. Ito, K. Shimamura, A. Narimatsu +1 more
19910 citations
Semantic Scholar

H. Kato

×10

M. Ono×8

Ken Taniguchi×6

T. Taketani×6

H. Morioka×6

I. Miwa×5

Norihiro Sugino×5

H. Asada×4