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Kawano K, Sakaguchi K, Ninpetch N, Yanagawa Y, Katagiri S. Physiological high temperatures alter the amino acid metabolism of bovine early antral follicles. J Reprod Dev 2024:2023-096. [PMID: 38631860 DOI: 10.1262/jrd.2023-096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/19/2024] Open
Abstract
Heat stress reduces the developmental competence of bovine oocytes during the growth phase; however, the detailed mechanisms remain unclear. Amino acids play various critical roles in follicular development, including protein synthesis and as energy sources. We performed in vitro growth (IVG) culture of oocyte-cumulus-granulosa complexes (OCGCs) to assess the amino acid metabolism of small follicles at high temperatures. We isolated OCGCs from early antral follicles (0.5-1.0 mm) and subjected them to IVG culture for 12 days. OCGCs in the heat shock group were cultured under a temperature cycle of (38.5°C: 5 h, 39.5°C: 5 h, 40.5°C: 5 h, and 39.5°C: 9 h) to reproduce the body temperature of lactating cows under a hot environment. OCGCs in the control group were cultured at a constant temperature of 38.5°C for 24 h. Of the surviving OCGCs, those showing similar morphology and size between the groups were selected for amino acid analysis. We analyzed the free amino acids and their metabolites in the culture medium and calculated the depletion or appearance of molecular species. The depletion of three essential amino acids (isoleucine, leucine, and valine), two non-essential amino acids (aspartic acid and glycine), and ornithine was higher in the heat shock group (P < 0.05). Alanine depletion was lower in the heat shock group (P < 0.05). We concluded that heat exposure alters the amino acid metabolism of OCGCs isolated from early antral follicles, which might be involved with the diminished developmental potential of oocytes during summer.
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Affiliation(s)
- Kohei Kawano
- Laboratory of Theriogenology, Department of Clinical Sciences, Graduate School of Veterinary Medicine, Hokkaido University, Sapporo 060-0818, Japan
- Present: Laboratory of Reproductive Physiology, Faculty of Environmental, Life, Natural Science and Technology, Okayama University, Okayama 700-8530, Japan
| | - Kenichiro Sakaguchi
- Laboratory of Theriogenology, Department of Clinical Sciences, Faculty of Veterinary Medicine, Hokkaido University, Sapporo 060-0818, Japan
- Institute of Cell Biology, School of Biological Sciences, College of Science and Engineering, University of Edinburgh, The Hugh Robson Building, Edinburgh EH8 9XD, UK
- Present: Laboratory of Veterinary Theriogenology, Joint Department of Veterinary Medicine, Faculty of Applied Biological Sciences, Gifu University, Gifu 501-1193, Japan
| | - Nattapong Ninpetch
- Laboratory of Theriogenology, Department of Clinical Sciences, Graduate School of Veterinary Medicine, Hokkaido University, Sapporo 060-0818, Japan
- Department of Animal Science, Faculty of Agriculture at Kamphaeng Saen, Kasetsart University, Kamphaeng Saen Campus, Nakhon Pathom 73140, Thailand
| | - Yojiro Yanagawa
- Laboratory of Theriogenology, Department of Clinical Sciences, Faculty of Veterinary Medicine, Hokkaido University, Sapporo 060-0818, Japan
| | - Seiji Katagiri
- Laboratory of Theriogenology, Department of Clinical Sciences, Faculty of Veterinary Medicine, Hokkaido University, Sapporo 060-0818, Japan
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Okuyama MW, Moriyoshi M, Katagiri S. Changes in interleukin-2, -4, -6 and -8 expression in the postovulatory sow endometrium after artificial insemination based on conceived or failed to conceive. J Reprod Dev 2024:2023-094. [PMID: 38616120 DOI: 10.1262/jrd.2023-094] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/16/2024] Open
Abstract
The establishment and maintenance of a pregnancy requires proper interaction between the endocrine and immune systems in the uterus. Therefore, it is crucial to understand how changes in endometrial cytokine levels facilitate reproduction. This study aimed to investigate how representative cytokines sequentially changed in the endometrium and whether conception could be attributed to these changes. In this study, artificial insemination was performed twice in 160 sows and ovulation was examined every 3 h using transrectal ultrasonography. Uterine endometrial tissues were obtained via repeated biopsies at 2, 4, 6, 8, 12, 16, and 20 h after ovulation and interleukin (IL)-2, IL-4, IL-6, and IL-8 expression was examined using real-time polymerase chain reaction. The conception rate was 91.9%. The IL-2 levels showed no differences in conception or time. The expression peaks of IL-4 and IL-6 were delayed in sows that failed to conceive within 4-6 h and 2 h, respectively, compared to those that did conceive. In sows that conceived, IL-8 was highest after 2 h, and no difference was observed at other time point, regardless of conception. In sows that failed to conceive, the increase in IL-8 levels might have been cancelled or terminated before the first sampling time. These results highlight the importance of timely increases and subsequent declines in the levels of some cytokines for the establishment of pregnancy. Differences in uterine capacity start just after ovulation; detection and correction of these deviations can improve the reproductive efficiency of sows.
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Affiliation(s)
- Minami W Okuyama
- Faculty of Medicine, Oita University, Yufu 879-5593, Japan
- Laboratory of Theriogenology, Department of Large Animal Clinical Sciences, School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu 069-8501, Japan
| | - Masaharu Moriyoshi
- Laboratory of Theriogenology, Department of Large Animal Clinical Sciences, School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu 069-8501, Japan
| | - Seiji Katagiri
- Laboratory of Theriogenology, Department of Veterinary Clinical Sciences, Graduate School of Veterinary Medicine, Hokkaido University, Sapporo 060-0818, Japan
- Laboratory of Theriogenology, Department of Large Animal Clinical Sciences, School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu 069-8501, Japan
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Tanida T, Tagami T, Sato H, Kyaw HM, Fujikawa T, Nagano M, Momozawa K, Yanagawa Y, Katagiri S. Effects of recombinant osteopontin expressed in Escherichia coli on the recovery of the endometrial epidermal growth factor profile and fertility in repeat breeder dairy cows. Theriogenology 2024; 217:159-168. [PMID: 38280277 DOI: 10.1016/j.theriogenology.2024.01.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2023] [Revised: 12/26/2023] [Accepted: 01/10/2024] [Indexed: 01/29/2024]
Abstract
Endometrial epidermal growth factor (EGF) shows a cyclic change with two peaks on days 2-4 and days 13-14 of the estrous cycle. In repeat breeder cows, loss of the peaks has been associated with reduced fertility. By infusing seminal plasma (SP) and osteopontin (OPN) derived from SP and milk into the vagina, their EGF profile and fertility are restored. However, SP is difficult to obtain, and both SP and OPN can transmit infectious diseases. While OPN can be sourced from recombinant protein without this risk, recombinant bovine OPN (rOPN) expressed in Escherichia coli should be examined for its effects on the EGF profile, since it does not undergo posttranslational modification, which is important for its biological activity. In study 1, PBS, SP (0.5 mL), and rOPN (0.3 mg) were infused into the vagina at estrus (day 0) in 74, 37, and 105 repeat breeder Holstein cows, respectively, with an altered EGF profile. The endometrial EGF concentrations were measured on day 3. Some cows (n = 58, 20, and 83, respectively) were inseminated immediately before the infusion and then diagnosed for pregnancy between days 30 and 35. The normalization rate of the EGF profile and conception rate in the rOPN group (58.1 % and 47.0 %, respectively) were not significantly different from those in the SP group (62.2 % and 45.0 %, respectively) but higher than those in PBS group (29.7 % and 28.1 %, respectively) (P < 0.05). In study 2, repeat breeder cows with an altered EGF profile were infused with PBS (n = 18) and rOPN (n = 17), while fertile controls with a normal EGF profile (n = 18) were infused with PBS. Two or three embryos were transferred into cows on day 7 and then recovered on day 14. Embryo recovery rates of the rOPN and fertile groups were comparable (58.7 % vs. 58.3 %) but higher than that of the PBS group (58.7 % vs. 32.0 %) (P < 0.05). The embryo recovery rate of cows with normalized EGF profile was higher than that of cows with unnormalized EGF profile (64.4 % vs. 16.7 %) (P < 0.05). The embryo sizes of cows in the rOPN and fertile groups were comparable but larger than those in the PBS group (P < 0.05). However, the embryo size was not correlated to the corresponding endometrial EGF concentrations. In conclusion, rOPN without posttranslational modifications normalized the EGF profile in repeat breeder cows. Improved fertility by normalization of the EGF profile could be attributed partly to the increased embryo viability up to day 14.
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Affiliation(s)
- Takashi Tanida
- Laboratory of Theriogenology, Department of Clinical Sciences, Graduate School of Veterinary Medicine, Hokkaido University, Sapporo, 060-0818, Japan
| | - Takayoshi Tagami
- Laboratory of Molecular Enzymology, Research Faculty of Agriculture, Hokkaido University, Sapporo, 060-8589, Japan
| | - Hiroko Sato
- Laboratory of Theriogenology, Department of Clinical Sciences, Graduate School of Veterinary Medicine, Hokkaido University, Sapporo, 060-0818, Japan
| | - Hay Mar Kyaw
- Laboratory of Theriogenology, Department of Clinical Sciences, Graduate School of Veterinary Medicine, Hokkaido University, Sapporo, 060-0818, Japan
| | | | - Masashi Nagano
- Laboratory of Animal Reproduction, Department of Animal Science, School of Veterinary Medicine, Kitasato University, 35-1 Higashi-23, Towada, 034-8628, Japan
| | - Kenji Momozawa
- Laboratory of Animal Reproduction, Department of Animal Science, School of Veterinary Medicine, Kitasato University, 35-1 Higashi-23, Towada, 034-8628, Japan
| | - Yojiro Yanagawa
- Laboratory of Theriogenology, Department of Clinical Sciences, Faculty of Veterinary Medicine, Hokkaido University, Sapporo, 060-0818, Japan
| | - Seiji Katagiri
- Laboratory of Theriogenology, Department of Clinical Sciences, Faculty of Veterinary Medicine, Hokkaido University, Sapporo, 060-0818, Japan.
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Phong V, Fujikawa T, Kawano K, Yanagawa Y, Katagiri S. Effects of prostaglandin F 2α treatment at follicular wave emergence on endometrial epidermal growth factor concentration on day 3 of the next estrous cycle and on fertility in dairy cows. Theriogenology 2023; 212:189-196. [PMID: 37748361 DOI: 10.1016/j.theriogenology.2023.09.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Revised: 09/16/2023] [Accepted: 09/18/2023] [Indexed: 09/27/2023]
Abstract
Inadequate exposure to estradiol (E2) and progesterone (P4) may be the main causes of altered endometrial epidermal growth factor (EGF) profile, leading to reduced fertility in dairy cows. We hypothesized that PGF2α administration at different timings of the estrous cycle and stages of follicular development could change the profile of steroid hormones between luteolysis and estrus. This results in reduction in the peak concentration of endometrial EGF on day 3 (day 0 = estrus) in the next estrous cycle. In study 1, lactating Holstein cows were treated with PGF2α either on days 12-14 (selection phase group, n = 20) or on days 16-17 (control group, n = 24) of the estrous cycle. Blood samples were obtained before PGF2α treatment, 24 and 48 h after treatment, and on the day of estrus and ovulation for E2 and P4 assays. Endometrial tissues were collected by biopsy on day 3 for EGF assays. The duration from PGF2α treatment to both estrus and ovulation was longer in the selection phase group than in the control group (P < 0.05). The time between estrus and ovulation was longer in the selection phase group (P < 0.05). E2 concentrations were higher in the control group on the day of estrus (P < 0.05). P4 concentrations were not different between the groups. Endometrial EGF concentrations were lower in the selection phase group than in the control group (P < 0.05). In study 2, lactating Holstein cows were treated with PGF2α either on day 12 (selection phase group, n = 76) or day 16 (control group, n = 80). They were subjected to artificial insemination (AI) at estrus, and those that failed to ovulate by 24h after the first AI were subjected to second AI. On day 3, endometrial EGF concentration was determined. At estrus and on days 3 and 7, blood was collected for E2 and P4 assay from 20 randomly selected cows in each group before PGF2α treatment. The cows in the selection phase group exhibited lower EGF concentration, proportion of cows with normal EGF profile, and conception rate than cows in the control group (P < 0.05). On the day of estrus, E2 concentrations tended to be lower in the selection phase group than in the control group (P = 0.08). P4 concentrations were not different between the groups. These findings suggest that low E2 concentrations at estrus and low P4 concentrations for a prolonged period due to premature termination of CL in the absence of a dominant follicle are potential causes of altered endometrial EGF profile in dairy cows.
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Affiliation(s)
- Vuongtuan Phong
- Laboratory of Theriogenology, Graduate School of Veterinary Medicine, Hokkaido University, Sapporo, 060-0818, Japan
| | | | - Kohei Kawano
- Laboratory of Theriogenology, Graduate School of Veterinary Medicine, Hokkaido University, Sapporo, 060-0818, Japan; Laboratory of Reproductive Physiology, Faculty of Environmental, Life, Natural Science and Technology, Okayama University, Okayama, 700-8530, Japan
| | - Yojiro Yanagawa
- Laboratory of Theriogenology, Department of Clinical Sciences, Faculty of Veterinary Medicine, Hokkaido University, Sapporo, 060-0818, Japan
| | - Seiji Katagiri
- Laboratory of Theriogenology, Department of Clinical Sciences, Faculty of Veterinary Medicine, Hokkaido University, Sapporo, 060-0818, Japan.
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Chelenga M, Yanagawa Y, Katagiri S, Nagano M. Pre-maturational culture promotes the developmental competence of bovine oocytes derived from an 8-day in vitro growth culture system. J Reprod Dev 2023; 69:214-217. [PMID: 37197977 PMCID: PMC10435529 DOI: 10.1262/jrd.2023-022] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Accepted: 04/24/2023] [Indexed: 05/19/2023] Open
Abstract
In this study, we evaluated the effects of pre-maturational culture (pre-IVM) on the developmental competence of bovine oocytes derived from an 8-day in vitro growth (IVG) culture system. IVG oocytes were subjected to 5 h pre-IVM before in vitro maturation, followed by in vitro fertilization (IVF). The proportion of oocytes that progressed to the germinal vesicle breakdown stage was similar between groups with and without pre-IVM. Although metaphase II oocytes and cleavage rates after IVF were similar regardless of pre-IVM culture, the blastocyst rate was significantly higher in the group with pre-IVM (22.5%) than without pre-IVM (11.0%, P < 0.05). In conclusion, pre-IVM culture improved the developmental competence of bovine oocytes derived from an 8-day IVG system.
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Affiliation(s)
- Madalitso Chelenga
- Laboratory of Theriogenology, Graduate School of Veterinary Medicine, Hokkaido University, Sapporo 060-0818, Japan
- Department of Clinical Studies, Faculty of Veterinary Medicine, Lilongwe University of Agriculture and Natural Resources, Malawi
| | - Yojiro Yanagawa
- Laboratory of Theriogenology, Department of Clinical Sciences, Faculty of Veterinary Medicine, Hokkaido University, Sapporo 060-0818, Japan
| | - Seiji Katagiri
- Laboratory of Theriogenology, Department of Clinical Sciences, Faculty of Veterinary Medicine, Hokkaido University, Sapporo 060-0818, Japan
| | - Masashi Nagano
- Laboratory of Animal Reproduction, Department of Animal Science, School of Veterinary Medicine, Kitasato University, Towada 034-8628, Japan
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Yagisawa T, Uchiyama J, Takemura-Uchiyama I, Ando S, Ichii O, Murakami H, Matsushita O, Katagiri S. Metataxonomic Analysis of the Uterine Microbiota Associated with Low Fertility in Dairy Cows Using Endometrial Tissues Prior to First Artificial Insemination. Microbiol Spectr 2023; 11:e0476422. [PMID: 37098918 PMCID: PMC10269553 DOI: 10.1128/spectrum.04764-22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Accepted: 04/07/2023] [Indexed: 04/27/2023] Open
Abstract
The deterioration in reproductive performance in association with low fertility leads to significant economic losses on dairy farms. The uterine microbiota has begun to attract attention as a possible cause of unexplained low fertility. We analyzed the uterine microbiota associated with fertility by 16S rRNA gene amplicon sequencing in dairy cows. First, the alpha (Chao1 and Shannon) and beta (unweighted and weighted UniFrac) diversities of 69 cows at four dairy farms that had passed the voluntary waiting period before the first artificial insemination (AI) were analyzed with respect to factors including farm, housing style, feeding management, parity, and AI frequency to conception. Significant differences were observed in the farm, housing style, and feeding management, except parity and AI frequency to conception. The other diversity metrics did not show significant differences in the tested factors. Similar results were obtained for the predicted functional profile. Next, the microbial diversity analysis of 31 cows at a single farm using weighted UniFrac distance matrices revealed a correlation with AI frequency to conception but not with parity. In correlation with AI frequency to conception, the predicted function profile appeared to be slightly modified and a single bacterial taxon, Arcobacter, was detected. The bacterial associations related to fertility were estimated. Considering these, the uterine microbiota in dairy cows can be varied depending on the farm management practices and may become one of the measures for low fertility. IMPORTANCE We examined the uterine microbiota associated with low fertility in dairy cows derived from four commercial farms via a metataxonomic approach using endometrial tissues prior to the first artificial insemination. The present study provided two new insights into the relevance of uterine microbiota with respect to fertility. First, the uterine microbiota varied depending on housing style and feeding management. Next, a subtle change was observed in functional profile analysis: a formation of uterine microbiota was detected to be different in correlation with fertility in one farm studied. Considering these insights, an examination system on bovine uterine microbiota is hopefully established based on continuous research on this topic.
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Affiliation(s)
| | - Jumpei Uchiyama
- Department of Bacteriology, Graduate School of Medicine Dentistry and Pharmaceutical Sciences, Okayama University, Okayama, Japan
| | - Iyo Takemura-Uchiyama
- Department of Bacteriology, Graduate School of Medicine Dentistry and Pharmaceutical Sciences, Okayama University, Okayama, Japan
| | - Shun Ando
- Hokkaido Agriculture Mutual Aid Association, Sapporo, Japan
| | - Osamu Ichii
- Laboratory of Anatomy, Department of Basic Veterinary Sciences, Faculty of Veterinary Medicine, Hokkaido University, Hokkaido, Japan
- Laboratory of Agrobiomedical Science, Faculty of Agriculture, Hokkaido University, Hokkaido, Japan
| | - Hironobu Murakami
- Laboratory of Infectious Diseases, School of Veterinary Medicine, Azabu University, Kanagawa, Japan
| | - Osamu Matsushita
- Department of Bacteriology, Graduate School of Medicine Dentistry and Pharmaceutical Sciences, Okayama University, Okayama, Japan
| | - Seiji Katagiri
- Laboratory of Theriogenology, Department of Clinical Sciences, Faculty of Veterinary Medicine, Hokkaido University, Hokkaido, Japan
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Sakaguchi K, Kawano K, Otani Y, Yanagawa Y, Katagiri S, Telfer EE. Relationship between Amino Acid Metabolism and Bovine In Vitro Follicle Activation and Growth. Animals (Basel) 2023; 13:ani13071141. [PMID: 37048397 PMCID: PMC10093075 DOI: 10.3390/ani13071141] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Revised: 03/06/2023] [Accepted: 03/20/2023] [Indexed: 04/14/2023] Open
Abstract
The amino acid metabolism of bovine follicles during in vitro growth (IVG) was evaluated to identify potential indicators of health during culture. The bovine ovarian cortex was sliced, prepared as strips, and cultured for 6 days. Tissue samples were examined histologically before and after 6 days of culture, and the degree of follicle activation was classified as either high or low based on the number of growing secondary follicles present (high: 7~11; low: 0~1). In a separate experiment, secondary follicles (diameter range: 100~200 μm) were manually isolated and cultured, and their growth was monitored for 6 days. Cultured follicles were classified as growth or degenerate based on diameter change during culture (growth: +60.5~74.1 μm; degenerate: -28~15.2 μm). Free amino acids and their metabolites were measured in the spent culture medium from each group. In cultured ovarian cortical strips, the concentration of α-aminoadipic acid was significantly higher in the low activation group than in the high group (p < 0.05), while those of methionine, lysine, and arginine were higher in the high activation group. In cultured isolated secondary follicles, concentrations of methionine, tyrosine, histidine, and hydroxyproline were higher in the degenerate group (p ≤ 0.05). In conclusion, amino acid metabolism has the potential to serve as an indicator of primordial follicle activation and subsequent growth rate during bovine IVG.
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Affiliation(s)
- Kenichiro Sakaguchi
- Institute of Cell Biology, School of Biological Sciences, College of Science and Engineering, University of Edinburgh, The Hugh Robson Building, 15 George Square, Edinburgh EH8 9XD, UK
- Laboratory of Theriogenology, Department of Clinical Sciences, Faculty of Veterinary Medicine, Hokkaido University, Kita 18 Nishi 9, Kita-ku, Sapporo 060-0818, Japan
| | - Kohei Kawano
- Laboratory of Theriogenology, Department of Clinical Sciences, Faculty of Veterinary Medicine, Hokkaido University, Kita 18 Nishi 9, Kita-ku, Sapporo 060-0818, Japan
| | - Yuki Otani
- Laboratory of Anatomy, Department of Basic Veterinary Sciences, Faculty of Veterinary Medicine, Hokkaido University, Kita 18 Nishi 9, Kita-ku, Sapporo 060-0818, Japan
| | - Yojiro Yanagawa
- Laboratory of Theriogenology, Department of Clinical Sciences, Faculty of Veterinary Medicine, Hokkaido University, Kita 18 Nishi 9, Kita-ku, Sapporo 060-0818, Japan
| | - Seiji Katagiri
- Laboratory of Theriogenology, Department of Clinical Sciences, Faculty of Veterinary Medicine, Hokkaido University, Kita 18 Nishi 9, Kita-ku, Sapporo 060-0818, Japan
| | - Evelyn E Telfer
- Institute of Cell Biology, School of Biological Sciences, College of Science and Engineering, University of Edinburgh, The Hugh Robson Building, 15 George Square, Edinburgh EH8 9XD, UK
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Furukawa E, Yanagawa Y, Matsuzaki A, Kim H, Bai H, Takahashi M, Katagiri S, Higaki S. Analysis of sequential ruminal temperature sensor data from dairy cows to identify cow subgroups by clustering and predict calving through supervised machine learning. J Reprod Dev 2023; 69:103-108. [PMID: 36801858 PMCID: PMC10085770 DOI: 10.1262/jrd.2022-107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/18/2023] Open
Abstract
The present study investigated the applicability of a calving prediction model based on supervised machine learning of ruminal temperature (RT) data in dairy cows. The existence of cow subgroups for prepartum RT changes was also examined, and the predictive performance of the model was compared among these subgroups. RT data were collected from 24 Holstein cows at 10 min intervals using an RT sensor system. The average hourly RT was calculated and data were expressed as residual RTs (rRT = actual RT - mean RT for the same time on the previous three days). The mean rRT decreased beginning at approximately 48 h before calving to a low of -0.5°C at 5 h before calving. However, two cow subgroups were identified: cows with a late and small rRT decrease (Cluster 1, n = 9) and those with an early and large rRT decrease (Cluster 2, n = 15). A calving prediction model was developed using five features extracted from the sensor data (indicative of prepartum rRT changes) through a support vector machine. Cross-validation showed that calving within 24 h was predicted with a sensitivity of 87.5% (21/24) and precision of 77.8% (21/27). A significant difference in sensitivity was observed between Clusters 1 and 2 (66.7 vs. 100%, respectively), while none was observed for precision. Therefore, the model based on RT data with supervised machine learning has the potential to efficiently predict calving, although improvements for specific cow subgroups are required.
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Affiliation(s)
- Eri Furukawa
- Laboratory of Theriogenology, Graduate School of Veterinary Medicine, Hokkaido University, Hokkaido 060-0818, Japan
| | - Yojiro Yanagawa
- Laboratory of Theriogenology, Faculty of Veterinary Medicine, Hokkaido University, Hokkaido 060-0818, Japan
| | | | - Heejin Kim
- uLikeKorea Co., Inc., Seoul 05839, Republic of Korea
| | - Hanako Bai
- Laboratory of Animal Breeding and Reproduction, Research Faculty of Agriculture, Hokkaido University, Hokkaido 060-8589, Japan
| | - Masashi Takahashi
- Laboratory of Animal Breeding and Reproduction, Research Faculty of Agriculture, Hokkaido University, Hokkaido 060-8589, Japan.,Global Station for Food, Land and Water Resources, Global Institution for Collaborative Research and Education, Hokkaido University, Hokkaido 060-8589, Japan
| | - Seiji Katagiri
- Laboratory of Theriogenology, Faculty of Veterinary Medicine, Hokkaido University, Hokkaido 060-0818, Japan
| | - Shogo Higaki
- National Institute of Animal Health, National Agriculture and Food Research Organization, Ibaraki 305-0856, Japan
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Kawano K, Sakaguchi K, Ninpetch N, Yanagawa Y, Katagiri S. 157 Effects of high temperature within physiological range on the amino acid metabolism of. Reprod Fertil Dev 2022. [DOI: 10.1071/rdv35n2ab157] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
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Fujikawa T, Kawano K, Yanagawa Y, Katagiri S. 126 Effect of oestrus synchronisation protocol with a high dose of oestradiol and an intravaginal progesterone-releasing device on the endometrial epidermal growth factor concentrations and fertility in recipient cows. Reprod Fertil Dev 2022. [DOI: 10.1071/rdv35n2ab126] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
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Furukawa E, Chen Z, Kubo T, Wu Y, Ueda K, Chelenga M, Chiba H, Yanagawa Y, Katagiri S, Nagano M, Hui SP. Simultaneous free fatty acid elevations and accelerated desaturation in plasma and oocytes in early postpartum dairy cows under intensive feeding management. Theriogenology 2022; 193:20-29. [PMID: 36122530 DOI: 10.1016/j.theriogenology.2022.09.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2022] [Revised: 09/04/2022] [Accepted: 09/06/2022] [Indexed: 11/17/2022]
Abstract
A severe negative energy balance and high circulating free fatty acids (FFA) in postpartum cows impair fertility. The lipotoxicity of FFA has been shown to decrease the quality of bovine oocytes in vitro. Therefore, excess FFA in cells is converted to triacylglycerol (TAG), a non-toxic form, to avoid lipotoxicity. We recently reported that the TAG content in oocytes was higher in postpartum lactating cows subjected to grazing management than in heifers (Theriogenology 176: 174-182, 2021). The present study investigated the compositions of the energy metabolism-related lipids, FFA and TAG, in the plasma and oocytes of cows at different lactation stages under indoor intensive feeding management in order to obtain insights into lipotoxicity in oocytes, particularly those in early postpartum cows. Blood and oocytes were collected from 20 lactating cows categorized into the following lactation groups: 20-30 days in milk (DIM) (n = 5), 40-50 DIM (n = 5), 60-80 DIM (n = 5), and 130-160 DIM (n = 5). Daily energy balance data were obtained for 3 weeks prior to oocyte collection using the ovum pick up (OPU) method. The contents and compositions of FFA and TAG in plasma and oocytes were analyzed using liquid chromatography-mass spectrometry. As expected, plasma FFA was high at 20-30 DIM, decreased by 50 DIM, and was maintained at a low level for the remainder of the experimental period. Similar changes were observed in oocyte FFA and TAG with DIM as plasma FFA. Oocyte FFA positively correlated with plasma FFA (P < 0.05), but negatively correlated with the mean energy balance 1 and 21 days before OPU (P < 0.05). Relationships were noted between the composition and content of FFA in plasma and oocytes, with the FFA 16:1/16:0 and 18:1/18:0 ratios positively correlating with the total amount of FFA (P < 0.05). Elevated oocyte FFA in cows in the early postpartum period under intensive feeding management suggested that oocytes were at a high risk of FFA lipotoxicity. Furthermore, the present results implied that the severe negative energy balance in the previous few weeks was closely related to increases in oocyte FFA, which supports the importance of long-term cow feeding management for preserving the quality of oocytes in the early postpartum period. The present results provide insights into the effects of high circulating FFA on the fertility of postpartum cows.
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Affiliation(s)
- Eri Furukawa
- Laboratory of Theriogenology, Graduate School of Veterinary Medicine, Hokkaido University, Kita-18, Nishi-9, Kita-ku, Sapporo, Hokkaido, 060-0818, Japan
| | - Zhen Chen
- Faculty of Health Sciences, Hokkaido University, Kita-12, Nishi-5, Kita-ku, Sapporo, Hokkaido, 060-0812, Japan
| | - Tomoaki Kubo
- Dairy Cattle Group, Dairy Research Center, Hokkaido Research Organization, 7, Asahigaoka, Nakashibetsu, Hokkaido, 086-1135, Japan
| | - Yue Wu
- Faculty of Health Sciences, Hokkaido University, Kita-12, Nishi-5, Kita-ku, Sapporo, Hokkaido, 060-0812, Japan
| | - Koichiro Ueda
- Laboratory of Animal Production System, Research Faculty of Agriculture, Hokkaido University, Kita-9, Nishi-9, Kita-ku, Sapporo, Hokkaido, 060-8589, Japan
| | - Madalitso Chelenga
- Laboratory of Theriogenology, Graduate School of Veterinary Medicine, Hokkaido University, Kita-18, Nishi-9, Kita-ku, Sapporo, Hokkaido, 060-0818, Japan
| | - Hitoshi Chiba
- Department of Nutrition, Sapporo University of Health Sciences, Nakanuma Nishi-4-2-1-15, Higashi-ku, Sapporo, Hokkaido, 007-0894, Japan
| | - Yojiro Yanagawa
- Laboratory of Theriogenology, Graduate School of Veterinary Medicine, Hokkaido University, Kita-18, Nishi-9, Kita-ku, Sapporo, Hokkaido, 060-0818, Japan
| | - Seiji Katagiri
- Laboratory of Theriogenology, Graduate School of Veterinary Medicine, Hokkaido University, Kita-18, Nishi-9, Kita-ku, Sapporo, Hokkaido, 060-0818, Japan
| | - Masashi Nagano
- Laboratory of Theriogenology, Graduate School of Veterinary Medicine, Hokkaido University, Kita-18, Nishi-9, Kita-ku, Sapporo, Hokkaido, 060-0818, Japan; Laboratory of Animal Reproduction, Department of Animal Science, School of Veterinary Medicine, Kitasato University, 35-1, Higashi-23 Bancho, Towada, 034-8628, Japan.
| | - Shu-Ping Hui
- Faculty of Health Sciences, Hokkaido University, Kita-12, Nishi-5, Kita-ku, Sapporo, Hokkaido, 060-0812, Japan.
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Sakaguchi K, Suda T, Ninpetch N, Kawano K, Yanagawa Y, Katagiri S, Yoshioka K, Nagano M. Plasma profile of follicle-stimulating hormone and sex steroid hormones after a single epidural administration of follicle-stimulating hormone via caudal vertebrae in Holstein dry cows. Anim Sci J 2022; 93:e13696. [PMID: 35195318 DOI: 10.1111/asj.13696] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Revised: 01/12/2022] [Accepted: 02/03/2022] [Indexed: 11/27/2022]
Abstract
The conventional follicle-stimulating hormone (FSH) treatment for bovine superstimulation involves multiple intramuscular injections, which is stressful for animals and onerous. We herein investigated whether a single epidural injection of porcine FSH (pFSH) can induce superovulation and peripheral concentrations of pFSH and steroid hormones after the treatment in Holstein dry cows. We intramuscularly administered pFSH twice daily to three cows for 3 days (control) or a single epidural pFSH administration (epidural). Numbers of follicles (≥10 mm in diameter) at estrus and corpora lutea at luteal phase were counted by ultrasonography. Blood was sampled from 0 to 104 h after the first pFSH administration and plasma pFSH, progesterone, androstenedione, testosterone, and estradiol-17β concentrations were measured. Numbers of follicles (control: 18.3 ± 7.5, epidural: 15.7 ± 4.0; mean ± SD) and corpora lutea (control: 7.3 ± 4.2, epidural: 8.0 ± 2.6) were similar between both treatments. Plasma pFSH concentrations were higher in epidural than in control (p < 0.01). Although no significant differences were observed in progesterone, androstenedione, or estradiol-17β concentrations between the groups, testosterone concentrations were slightly lower with the epidural treatment than with the control treatment (p = 0.08). In conclusion, superovulation was induced by a single epidural injection of pFSH, which achieved higher pFSH level than the multiple injections in Holstein dry cows.
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Affiliation(s)
- Kenichiro Sakaguchi
- Laboratory of Theriogenology, Department of Clinical Sciences, Faculty of Veterinary Medicine, Hokkaido University, Sapporo, Japan.,Institute of Cell Biology, School of Biological Sciences, College of Science and Engineering, University of Edinburgh, Edinburgh, UK
| | - Tomoko Suda
- National Institute of Animal Health, National Agriculture and Food Research Organization, Tsukuba, Japan
| | - Nattapong Ninpetch
- Laboratory of Theriogenology, Department of Clinical Sciences, Faculty of Veterinary Medicine, Hokkaido University, Sapporo, Japan
| | - Kohei Kawano
- Laboratory of Theriogenology, Department of Clinical Sciences, Faculty of Veterinary Medicine, Hokkaido University, Sapporo, Japan
| | - Yojiro Yanagawa
- Laboratory of Theriogenology, Department of Clinical Sciences, Faculty of Veterinary Medicine, Hokkaido University, Sapporo, Japan
| | - Seiji Katagiri
- Laboratory of Theriogenology, Department of Clinical Sciences, Faculty of Veterinary Medicine, Hokkaido University, Sapporo, Japan
| | - Koji Yoshioka
- National Institute of Animal Health, National Agriculture and Food Research Organization, Tsukuba, Japan.,Laboratory of Theriogenology, Department of Veterinary Medicine, Azabu University, Sagamihara, Japan
| | - Masashi Nagano
- Laboratory of Theriogenology, Department of Clinical Sciences, Faculty of Veterinary Medicine, Hokkaido University, Sapporo, Japan.,Laboratory of Animal Reproduction, Department of Animal Science, School of Veterinary Medicine, Kitasato University, Towada, Japan
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Kyaw HM, Sato H, Tagami T, Yanagawa Y, Nagano M, Katagiri S. Effects of milk osteopontin on the endometrial epidermal growth factor profile and restoration of fertility in repeat breeder dairy cows. Theriogenology 2022; 184:26-33. [DOI: 10.1016/j.theriogenology.2022.02.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Revised: 01/19/2022] [Accepted: 02/07/2022] [Indexed: 10/19/2022]
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Takaesu N, Kanno C, Sugimoto K, Nagano M, Kaneko A, Indo Y, Imai H, Hirai H, Okamoto M, Sashika M, Shimozuru M, Katagiri S, Tsubota T, Yanagawa Y. Semen collection by urethral catheterization and electro-ejaculation with different voltages, and the effect of holding temperature and cooling rate before cryopreservation on semen quality in the Japanese macaque (Macaca fuscata). J Vet Med Sci 2022; 84:429-438. [PMID: 35067494 PMCID: PMC8983288 DOI: 10.1292/jvms.21-0590] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
In the Japanese macaque, semen has been collected by electro-ejaculation (EE), using the higher voltage stimuli compared to other species including genus Macaca. Semen coagulate immediately after ejaculation, which makes difficult to produce high-quality semen for artificial insemination. Recently, semen collection using urethral catheterization (UC) has been reported in carnivore and this technique may allow semen collection without coagulation in a less invasive manner. Further, the temporal preservation temperature and cooling rate of semen during cryopreservation affect post thawing sperm quality. In this study, to improve semen quality and quantity, as well as the animal welfare, semen collection was performed by EE with high (5-15 V) or low (3-6 V) voltage, UC and a combination of the two (EE-UC). It has been suggested that a high voltage is necessary for semen collection, but 10 V stimulation was effective enough and 15 V is for additional sperm collection. Also, liquid semen was collected by EE-UC and this could increase the total number of sperm. Further, to improve the post thawing sperm motility, semen was kept at four temperatures (4, 15, 25 and 37˚C) for 60 min, and processed with two cooling procedures (slow cooling before second dilution and fast cooling after second dilution). Holding semen at 25˚C and fast cooling after the second dilution maintained progressive motile sperm rate. The present results will contribute to the improvement of semen collection and animal welfare of Japanese macaques.
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Affiliation(s)
- Noboru Takaesu
- Laboratory of Wildlife Biology and Medicine, Faculty of Veterinary Medicine, Hokkaido University
| | - Chihiro Kanno
- Laboratory of Clinical Veterinary Medicine for Large Animal, School of Veterinary Medicine, Kitasato University
| | - Kosuke Sugimoto
- Laboratory of Theriogenology, Faculty of Veterinary Medicine, Hokkaido University
| | - Masashi Nagano
- Laboratory of Animal Reproduction, School of Veterinary Medicine, Kitasato University
| | | | - Yoriko Indo
- Primate Research Institute, Kyoto University
| | - Hiroo Imai
- Primate Research Institute, Kyoto University
| | | | | | - Mariko Sashika
- Laboratory of Wildlife Biology and Medicine, Faculty of Veterinary Medicine, Hokkaido University
| | - Michito Shimozuru
- Laboratory of Wildlife Biology and Medicine, Faculty of Veterinary Medicine, Hokkaido University
| | - Seiji Katagiri
- Laboratory of Theriogenology, Faculty of Veterinary Medicine, Hokkaido University
| | - Toshio Tsubota
- Laboratory of Wildlife Biology and Medicine, Faculty of Veterinary Medicine, Hokkaido University
| | - Yojiro Yanagawa
- Laboratory of Theriogenology, Faculty of Veterinary Medicine, Hokkaido University
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Chelenga M, Sakaguchi K, Kawano K, Furukawa E, Yanagawa Y, Katagiri S, Nagano M. Low oxygen environment and astaxanthin supplementation promote the developmental competence of bovine oocytes derived from early antral follicles during 8 days of in vitro growth in a gas-permeable culture device. Theriogenology 2022; 177:116-126. [PMID: 34695665 DOI: 10.1016/j.theriogenology.2021.10.014] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Revised: 10/12/2021] [Accepted: 10/16/2021] [Indexed: 10/20/2022]
Abstract
We evaluated the effects of a constant low (5-5%) and modulated (5-20%) oxygen environments on the in vitro development of bovine oocyte-cumulus-granulosa cell complexes (OCGCs) cultured in the presence or absence of an antioxidant (astaxanthin: Ax). OCGCs were cultured in a gas permeable culture device for 8 days in 5-5% O2 (±Ax) and 5-20% O2 (±Ax) culture conditions. In the oxygen modulated culture conditions, the oxygen concentration was switched from 5% to 20% on day 4 of culture. Ax promoted the viability of OCGCs (P < 0.05), but both oxygen and Ax had a significant effect on ROS production levels by OCGCs (P < 0.05). Specifically, ROS levels were significantly lower and higher under 5-5% O2 (+Ax) and 5-20% O2 (-Ax) conditions, respectively (P < 0.05), with intermediate levels observed in the 5-5% O2 (-Ax) and the 5-20% O2 (+Ax) culture conditions. The steroidogenic pattern was characterized by increasing estradiol-17β but with constant progesterone production levels regardless of culture conditions, suggesting the inhibition of luteinization-like changes in granulosa cells. OCGCs cultured in the 5-20% O2 (+Ax) had higher nuclear maturation rates (P < 0.05) that were similar to the oocytes grown in vivo. However, there was no clear difference in the subsequent cleavage rates among the 5-5% O2 (±Ax) and the 5-20% O2 (+Ax) culture conditions (P > 0.05). A constant low oxygen environment significantly promoted the blastocyst rates (P < 0.05); however, the presence of Ax in the 5-20% O2 (+Ax) condition also promoted development similar to the OCGCs cultured in the 5-5% O2 (-Ax) condition (P > 0.05). In conclusion, exposure of OCGCs to constant low oxygen or oxygen modulation in the presence of Ax promotes the healthy development of OCGCs during the 8-day IVG culture using the gas permeable culture device.
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Affiliation(s)
- Madalitso Chelenga
- Laboratory of Theriogenology, Graduate School of Veterinary Medicine, Hokkaido University, Sapporo, 060-0818, Japan; Department of Clinical Studies, Faculty of Veterinary Medicine, Lilongwe University of Agriculture and Natural Resources, Malawi
| | - Kenichiro Sakaguchi
- Laboratory of Theriogenology, Graduate School of Veterinary Medicine, Hokkaido University, Sapporo, 060-0818, Japan
| | - Kohei Kawano
- Laboratory of Theriogenology, Graduate School of Veterinary Medicine, Hokkaido University, Sapporo, 060-0818, Japan
| | - Eri Furukawa
- Laboratory of Theriogenology, Graduate School of Veterinary Medicine, Hokkaido University, Sapporo, 060-0818, Japan
| | - Yojiro Yanagawa
- Laboratory of Theriogenology, Department of Clinical Sciences, Faculty of Veterinary Medicine, Hokkaido University, Sapporo, 060-0818, Japan
| | - Seiji Katagiri
- Laboratory of Theriogenology, Department of Clinical Sciences, Faculty of Veterinary Medicine, Hokkaido University, Sapporo, 060-0818, Japan
| | - Masashi Nagano
- Laboratory of Animal Reproduction, Department of Animal Science, School of Veterinary Medicine, Kitasato University, 35-1 Higashi-23, Towada, 034-8628, Japan.
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16
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Kanno C, Sun-Sik K, Sakamoto KQ, Yanagawa Y, Katagiri S, Nagano M. Relationship between frame rates and subpopulation structure of bovine sperm divided by their motility analyzed by a computer-assisted sperm analysis system. Anim Sci J 2022; 93:e13796. [PMID: 36502272 DOI: 10.1111/asj.13796] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Revised: 11/17/2022] [Accepted: 11/22/2022] [Indexed: 12/14/2022]
Abstract
The authors investigated the relationship between frame rates and subpopulation structure of bovine sperm divided by their motility analyzed by a computer-assisted sperm analysis (CASA). Kinematic parameters of bovine sperm incubated in Brackett & Oliphant medium with and without calcium ionophore for 0, 1, 5, 10, 15, 20, 25, and 30 min were evaluated by a CASA at 150 frames per second (fps) and analyzed structure of sperm motility subpopulation by cluster analysis. Then, we converted CASA data at 150 fps to 75, 50, and 30 fps and evaluated the structures of sperm motility subpopulation at different fps in each sperm by a discriminant analysis. As the results, the structure of sperm motility subpopulation was affected by frame rate. Sperm were divided into six clusters at 150, 75, and 50 fps; on the other hand, there were five clusters at 30 fps. Straight-line velocity was similar at all frame rates. However, as the frame rate became higher, curvilinear velocity and beat cross frequency of sperm head increased significantly, whereas lateral sperm head displacement decreased significantly. In conclusion, higher frame rate at 150 fps is recommended to capture the trajectory of sperm accurately by CASA in the present study.
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Affiliation(s)
- Chihiro Kanno
- Laboratory of Clinical Veterinary Medicine for Large Animal, Division of Veterinary Medicine, School of Veterinary Medicine, Kitasato University, Towada, Japan
| | - Kang Sun-Sik
- Hanwoo Research Institute, National Institute of Animal Science of Korea, Pyeongchang, Korea
| | - Kentaro Q Sakamoto
- Department of Marine Bioscience, Atmosphere and Ocean Research Institute, The University of Tokyo, Kashiwa, Japan
| | - Yojiro Yanagawa
- Laboratory of Theriogenology, Department of Veterinary Clinical Sciences, Graduate School of Veterinary Medicine, Hokkaido University, Sapporo, Japan
| | - Seiji Katagiri
- Laboratory of Theriogenology, Department of Veterinary Clinical Sciences, Graduate School of Veterinary Medicine, Hokkaido University, Sapporo, Japan
| | - Masashi Nagano
- Laboratory of Animal Reproduction, Department of Animal Science, School of Veterinary Medicine, Kitasato University, Towada, Japan
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Furukawa E, Chen Z, Kubo T, Chelenga M, Wu Y, Chiba H, Yanagawa Y, Katagiri S, Hui S, Nagano M. 100 Effects of days in milk and body condition score loss after parturition on oocyte triacylglycerol content in Holstein cows. Reprod Fertil Dev 2021; 34:287. [PMID: 35231236 DOI: 10.1071/rdv34n2ab100] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Affiliation(s)
- E Furukawa
- Laboratory of Theriogenology, School of Veterinary Medicine, Hokkaido University, Sapporo, Hokkaido, Japan
| | - Z Chen
- Department of Health Sciences and Technology, Faculty of Health Sciences, Hokkaido University, Sapporo, Hokkaido, Japan
| | - T Kubo
- Dairy Cattle Group, Dairy Research Center, Hokkaido Research Organization, Nakashibetsu, Hokkaido, Japan
| | - M Chelenga
- Laboratory of Theriogenology, School of Veterinary Medicine, Hokkaido University, Sapporo, Hokkaido, Japan
| | - Y Wu
- Department of Health Sciences and Technology, Faculty of Health Sciences, Hokkaido University, Sapporo, Hokkaido, Japan
| | - H Chiba
- Department of Nutrition, Sapporo University of Health Sciences, Sapporo, Hokkaido, Japan
| | - Y Yanagawa
- Laboratory of Theriogenology, School of Veterinary Medicine, Hokkaido University, Sapporo, Hokkaido, Japan
| | - S Katagiri
- Laboratory of Theriogenology, School of Veterinary Medicine, Hokkaido University, Sapporo, Hokkaido, Japan
| | - S Hui
- Department of Health Sciences and Technology, Faculty of Health Sciences, Hokkaido University, Sapporo, Hokkaido, Japan
| | - M Nagano
- Laboratory of Animal Reproduction, School of Veterinary Medicine, Kitasato University, Towada, Aomori, Japan
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Furukawa E, Chen Z, Ueshiba H, Wu Y, Chiba H, Yanagawa Y, Katagiri S, Nagano M, Hui SP. Postpartum cows showed high oocyte triacylglycerols concurrently with high plasma free fatty acids. Theriogenology 2021; 176:174-182. [PMID: 34624811 DOI: 10.1016/j.theriogenology.2021.09.034] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2021] [Revised: 09/12/2021] [Accepted: 09/30/2021] [Indexed: 12/11/2022]
Abstract
Impaired oocyte quality is one of the main causes of low fertility in modern high-yielding dairy cows. One of the potential factors of the impaired oocyte quality is the effects of free fatty acids (FFA). In fact, high FFA supplementation to culture media exacerbated oocyte developmental competence in vitro. Meanwhile, artificially induced high blood FFA levels in heifers did not affect the lipid composition of oocytes in vivo; however, the oocyte lipid profile of postpartum cows has not yet been investigated. Therefore, the profile of lipids involved in energy metabolism, including FFA and triacylglycerols (TAG), and their relationship between plasma and oocytes were compared among cows at different lactation stages. Heifers were used as a control group that was not affected by lactation. Plasma and oocytes were collected from heifers (n = 4) and 14 Holstein cows categorized to the early lactation stage: 25-47 days in milk (DIM) (n = 6), peak lactation stage: 61-65 DIM (n = 4), and middle lactation stage: 160-202 DIM (n = 4). The FFA and TAG profiles of plasma and oocytes were examined by liquid chromatography mass spectrometry. Plasma FFA positively correlated with oocyte TAG (P < 0.05). Plasma FFA and oocyte TAG were significantly higher in cows in the early lactation stage than in heifers (P < 0.05), while the peak and middle lactation stage groups had intermediate levels. The proportion of oleic acid in plasma increased concurrently with elevations in total FFA, while the compositions of oocyte FFA and TAG fatty acyls were constant regardless of plasma FFA concentration or oocyte TAG content. The present results suggest that high postpartum plasma FFA concentrations affect the quantity of oocyte TAG. Taken together with the adverse effects of high FFA concentrations on oocyte developmental competence in vitro, oocyte quality in postpartum cows may be impaired due to high circulating FFA concentrations. These results provide a more detailed understanding of the effects of postpartum high circulating FFA concentrations on the low fertility of cows.
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Affiliation(s)
- Eri Furukawa
- Laboratory of Theriogenology, Graduate School of Veterinary Medicine, Hokkaido University, Kita-18, Nishi-9, Kita-ku, Sapporo, Hokkaido, 060-0818, Japan
| | - Zhen Chen
- Faculty of Health Sciences, Hokkaido University, Kita-12, Nishi-5, Kita-ku, Sapporo, Hokkaido, 060-0812, Japan
| | - Hiroki Ueshiba
- Laboratory of Theriogenology, Faculty of Veterinary Medicine, Hokkaido University, Kita-18, Nishi-9, Kita-ku, Sapporo, Hokkaido, 060-0818, Japan
| | - Yue Wu
- Faculty of Health Sciences, Hokkaido University, Kita-12, Nishi-5, Kita-ku, Sapporo, Hokkaido, 060-0812, Japan
| | - Hitoshi Chiba
- Department of Nutrition, Sapporo University of Health Sciences, Nakanuma Nishi-4-2-1-15, Higashi-ku, Sapporo, Hokkaido, 007-0894, Japan
| | - Yojiro Yanagawa
- Laboratory of Theriogenology, Graduate School of Veterinary Medicine, Hokkaido University, Kita-18, Nishi-9, Kita-ku, Sapporo, Hokkaido, 060-0818, Japan
| | - Seiji Katagiri
- Laboratory of Theriogenology, Graduate School of Veterinary Medicine, Hokkaido University, Kita-18, Nishi-9, Kita-ku, Sapporo, Hokkaido, 060-0818, Japan
| | - Masashi Nagano
- Laboratory of Theriogenology, Graduate School of Veterinary Medicine, Hokkaido University, Kita-18, Nishi-9, Kita-ku, Sapporo, Hokkaido, 060-0818, Japan; Laboratory of Animal Reproduction, Department of Animal Science, School of Veterinary Medicine, Kitasato University, 35-1, Higashi-23, Towada, Aomori, 034-8628, Japan.
| | - Shu-Ping Hui
- Faculty of Health Sciences, Hokkaido University, Kita-12, Nishi-5, Kita-ku, Sapporo, Hokkaido, 060-0812, Japan.
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Kawano K, Sakaguchi K, Furukawa E, Chelenga M, Yanagawa Y, Katagiri S. 85 The effects of heat exposure on the growth and developmental competence of oocytes derived from early antral follicles in dairy cows. Reprod Fertil Dev 2021. [DOI: 10.1071/rdv33n2ab85] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Summer heat stress in dairy cows impairs the developmental competence of oocytes from antral follicles (2–8mm) which are used in conventional IVM and IVF systems. Moreover, summer heat stress is considered to impair the oocyte competence derived from smaller follicles; therefore, the impairment of oocyte competence possibly continues into the cooler autumn season. To investigate the thermosensitivity of early antral follicles (<1mm), we evaluated the effects of heat exposure on the growth and developmental competence of oocytes using invitro culture of oocyte–cumulus-granulosa complexes (OCGCs) derived from early antral follicles. OCGCs (n=315) were collected from early antral follicles (0.5–1mm) and cultured for 12 days. OCGCs in the heat shock group were cultured using a temperature cycle of 38.5°C for 5h, 39.5°C for 5h, 40.5°C for 5h, and 39.5°C for 9h, whereas those in the control group were cultured at a constant temperature of 38.5°C for 24h. The diameters of oocytes were measured before culture. Half of the culture medium was replaced every 4 days. Oestradiol-17β (E2) and progesterone (P4) production during the first, second, and third 4-day periods were measured by enzyme immunoassay; the viability of OCGCs was evaluated based on their morphology. Oocytes that survived after 12 days of culture (n=191) were subjected to IVM (38.5°C, 22h); their diameter and nuclear status were evaluated. Some oocytes (n=71) were subjected to IVF (38.5°C, 18h) and embryo culture (39.0°C, 150h). Cleavage and blastocyst rates were evaluated at 48h and 168h after IVF. Effects of treatment groups and culture periods on E2 and P4 production and diameters of oocytes were evaluated by two-way ANOVA followed by Tukey-Kramer or Student’s t-test. The viability of OCGCs, nuclear maturation, cleavage and blastocyst rates between two groups were compared by the chi-squared or Fisher’s exact test. E2 and P4 production and the viability of OCGCs were not different between the 2 groups. Although mean oocyte diameters before culture did not differ between the 2 groups, the mean diameters after IVM were significantly smaller in the heat shock group (108.0µm, n=56) than in the control group (111.7µm, n=61; P<0.05). The nuclear maturation rate in the heat shock group (36.4%, n=55) was significantly lower than in the control group (60.3%, n=58; P<0.05). Cleavage rates were similar between the control (54.5%, n=33) and heat shock groups (45.7%, n=35). However, no oocytes developed to blastocysts in the heat shock group (0%, n=35), whereas 30.3% (n=33) oocytes developed to blastocysts (cell number±s.d.; 92.4±28.4) in the control group (P<0.05). These findings suggest that summer heat stress in dairy cows impairs the growth, nuclear maturation, and developmental competence of oocytes derived from early antral follicles. This experimental model could be used to explore the mechanisms by which heat stress subsequently impairs oocyte competence during the cooler autumn season.
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Torii Y, Matsumoto N, Sakamoto H, Nagano M, Katagiri S, Yanagawa Y. Monitoring follicular dynamics to determine estrus type and timing of ovulation induction in captive brown bears (Ursus arctos). J Reprod Dev 2020; 66:563-570. [PMID: 33041275 PMCID: PMC7768176 DOI: 10.1262/jrd.2020-044] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
It is important to understand ovarian physiology when developing an artificial insemination (AI) protocol. Brown bears (Ursus arctos) have a breeding season from May to July, although the type of estrus (polyestrus or monoestrus) is still contested. The present study aimed to define the ovarian dynamics, including follicular waves and ovulatory follicle size, and estrus type in brown bears. Six brown bears were used for ovarian ultrasonography; four were observed between April and October (before the start and after the end of the breeding season) and two in June (breeding season). In addition, we attempted to induce ovulation by administering a gonadotropin releasing hormone (GnRH) agonist. We observed follicular development in April in four bears, but follicles did not develop to greater than 6.0 mm in diameter until May. Thereafter, a group of follicles developed to more than 6.0 mm and grew as dominant follicles, except in one bear. After ovulation and subsequent corpus luteum (CL) formation, the follicular waves disappeared. Furthermore, in three bears treated with GnRH, follicles between 8.2 to 11.2 mm in diameter at the time of treatment ovulated and formed CLs. In two bears, follicles between 5.8 to 8.8 mm ovulated spontaneously within the observation interval. Our results suggest that brown bears may be monoestrous animals. Therefore, AI can only be performed once during the breeding season. Our results also suggest that dominant follicles larger than 8.0 mm are a suitable size for inducing ovulation.
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Affiliation(s)
- Yoshiko Torii
- Laboratory of Theriogenology, Department of Clinical Sciences, Graduate School of Veterinary Medicine, Hokkaido University, Hokkaido 060-0818, Japan
| | | | | | - Masashi Nagano
- Laboratory of Theriogenology, Department of Clinical Sciences, Division of Veterinary Medicine, Faculty of Veterinary Medicine, Hokkaido University, Hokkaido 060-0818, Japan
| | - Seiji Katagiri
- Laboratory of Theriogenology, Department of Clinical Sciences, Division of Veterinary Medicine, Faculty of Veterinary Medicine, Hokkaido University, Hokkaido 060-0818, Japan
| | - Yojiro Yanagawa
- Laboratory of Theriogenology, Department of Clinical Sciences, Division of Veterinary Medicine, Faculty of Veterinary Medicine, Hokkaido University, Hokkaido 060-0818, Japan
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Chelenga M, Sakaguchi K, Abdel-Ghani MA, Yanagawa Y, Katagiri S, Nagano M. Effect of increased oxygen availability and astaxanthin supplementation on the growth, maturation and developmental competence of bovine oocytes derived from early antral follicles. Theriogenology 2020; 157:341-349. [PMID: 32853969 DOI: 10.1016/j.theriogenology.2020.07.023] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2020] [Revised: 06/30/2020] [Accepted: 07/25/2020] [Indexed: 11/29/2022]
Abstract
In vitro growth (IVG) culture of bovine oocyte-cumulus-granulosa complexes (OCGCs) is generally carried out for 12 or 14 days using conventional gas impermeable culture devices. The culture duration may be longer compared to follicular development in vivo. During follicular development, follicles receive oxygen from micro vessels; however, oxygen supply is limited under the culture using conventional gas impermeable devices. The purpose of this study was to investigate the effect of increasing dissolved oxygen availability using a gas permeable (GP) culture device with or without antioxidant (astaxanthin, Ax) supplementation on 8-day IVG culture systems for bovine OCGCs derived from early antral follicles. We cultured OCGCs in GP, GP supplemented with Ax (GP + Ax), and a conventional gas impermeable device (control) for 8 or 12 days. OCGC viability were significantly higher when cultured for 8 days than 12 days (p < 0.001) in all culture condition, but significant difference was not observed between groups (p > 0.05). Antrum formation rates of OCGCs were higher after 12 days than 8 days of culture in all culture condition (p < 0.001) and were significantly higher in the control than GP groups regardless of Ax supplementation (p < 0.05). Oocyte diameters were similar among day-8 GP + Ax, day-8 control and day-12 control groups (p > 0.05). Nuclear maturation rates of oocytes grown in vitro for 8 days were significantly higher in the GP + Ax group than in the control and the GP groups (p < 0.05) and similar to oocytes grown for 12 days regardless of the culture conditions (p > 0.05). The generation of reactive oxygen species in OCGCs on day 8 of IVG culture was significantly lower in the GP + Ax group than those of the GP and control groups (p < 0.05). IVG oocytes after eight days of culture developed into blastocysts, and the cleavage and blastocyst rates were similar in all treatment groups. However, in vivo-grown oocytes had significantly higher (p < 0.05) cleavage and blastocyst rates than the IVG oocytes in all groups. The present study demonstrates that increased oxygen availability using a GP culture device with Ax supplementation promotes oocyte growth and maturation competence but inhibits proliferation of granulosa cells and antrum formation compared with a conventional gas impermeable culture device, and that OCGCs can attain developmental competence after 8 days of IVG culture.
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Affiliation(s)
- Madalitso Chelenga
- Laboratory of Theriogenology, Graduate School of Veterinary Medicine, Hokkaido University, Sapporo, 060-0818, Japan; Department of Clinical Studies, Faculty of Veterinary Medicine, Lilongwe University of Agriculture and Natural Resources, Malawi
| | - Kenichiro Sakaguchi
- Laboratory of Theriogenology, Graduate School of Veterinary Medicine, Hokkaido University, Sapporo, 060-0818, Japan
| | - Mohammed A Abdel-Ghani
- Department of Theriogenology, Faculty of Veterinary Medicine, Assiut University, Assiut, 71515, Egypt
| | - Yojiro Yanagawa
- Laboratory of Theriogenology, Department of Clinical Sciences, Faculty of Veterinary Medicine, Hokkaido University, Sapporo, 060-0818, Japan
| | - Seiji Katagiri
- Laboratory of Theriogenology, Department of Clinical Sciences, Faculty of Veterinary Medicine, Hokkaido University, Sapporo, 060-0818, Japan
| | - Masashi Nagano
- Laboratory of Theriogenology, Department of Clinical Sciences, Faculty of Veterinary Medicine, Hokkaido University, Sapporo, 060-0818, Japan; Laboratory of Animal Reproduction, Department of Animal Science, School of Veterinary Medicine, Kitasato University, 35-1 Higashi-23, Towada, 034-8628, Japan.
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Badrakh D, Yanagawa Y, Nagano M, Katagiri S. Effect of seminal plasma infusion into the vagina on the normalization of endometrial epidermal growth factor concentrations and fertility in repeat breeder dairy cows. J Reprod Dev 2020; 66:149-154. [PMID: 31996487 PMCID: PMC7175382 DOI: 10.1262/jrd.2019-148] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
Epidermal growth factor (EGF) concentrations in the uterus show two peaks on days 2–4 and 13–14 during the estrous cycle in fertile cows. Loss of the two peaks has been linked to reduced
fertility in repeat breeder cows. This study aimed to examine the effect of seminal plasma (SP) on normalizing endometrial EGF concentrations and restoring fertility in repeat breeder cows
with low EGF concentrations on day 3. In study 1, we examined the effect of the deposition sites (the vagina and uterus) of SP on the endometrial EGF concentrations in repeat breeder cows.
SP infusion into the vagina, but not uterus, on the first day of the estrus cycle (day 0) normalized the endometrial EGF concentrations (≥ 4.7 ng/g tissue weight) on day 3. In study 2, the
effect of SP volume (0.5 and 10 ml of SP and 0.5 ml of SP diluted to 10 ml) on EGF concentrations was examined. All groups with SP infusion had increased EGF concentrations on day 3, and
cows with 10 ml of SP and 0.5 ml of SP diluted to 10 ml showed the highest levels of EGF concentrations. In study 3, we examined the effect of SP infusion on fertility. SP infusion
normalized two peaks of endometrial EGF concentrations in about 60% of repeat breeder cows and produced more pregnancies than the controls (44.4 vs. 19.4%). Therefore, we
concluded that SP may contain an activity to normalize the EGF profile and restore fertility in repeat breeder cows with altered EGF profiles.
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Affiliation(s)
- Dagvajamts Badrakh
- Laboratory of Theriogenology, Department of Clinical Sciences, Graduate School of Veterinary Medicine, Hokkaido University, Sapporo 060-0818, Japan
| | - Yojiro Yanagawa
- Laboratory of Theriogenology, Department of Clinical Sciences, Faculty of Veterinary Medicine, Hokkaido University, Sapporo 060-0818, Japan
| | - Masashi Nagano
- Laboratory of Theriogenology, Department of Clinical Sciences, Faculty of Veterinary Medicine, Hokkaido University, Sapporo 060-0818, Japan
| | - Seiji Katagiri
- Department of Veterinary Environmental Sciences, Faculty of Veterinary Medicine, Hokkaido University, Sapporo 060-0818, Japan
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Sakaguchi K, Yanagawa Y, Yoshioka K, Suda T, Katagiri S, Nagano M. Relationships between the antral follicle count, steroidogenesis, and secretion of follicle-stimulating hormone and anti-Müllerian hormone during follicular growth in cattle. Reprod Biol Endocrinol 2019; 17:88. [PMID: 31690325 PMCID: PMC6833202 DOI: 10.1186/s12958-019-0534-3] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/11/2019] [Accepted: 10/15/2019] [Indexed: 01/17/2023] Open
Abstract
BACKGROUND The antral follicle count (AFC) in mammalian ovaries positively correlates with female fertility. To clarify the causes of differences in fertility between low and high AFC cows, we investigated follicular growth dynamics and hormone concentrations in plasma, follicular fluid, and in vitro growth (IVG) media at different stages of follicular growth. METHODS Seven cows were divided into high AFC (n = 4, > 30 follicles) and low AFC (n = 3, < 30 follicles) groups based on the peak AFC detected by ultrasonography. These cows were subjected to estrous synchronization, daily ovarian ultrasonography, and blood collection. Their follicular fluid was collected from dominant follicles at different stages (selection, luteal, and ovulatory phases). In another experiment, we cultured oocyte-cumulus-granulosa cell complexes collected from early antral follicles (< 1 mm) for 12 days. Estradiol-17β (E2), testosterone (T), progesterone (P4), and anti-Müllerian hormone (AMH) concentrations in follicular fluids and plasma were measured. Plasma follicle-stimulating hormone (FSH) concentrations were examined. E2, P4, and AMH concentrations were also measured in IVG media. RESULTS The numbers of small (< 4 mm) and intermediate (4-8 mm) follicles were larger in the high AFC group than in the low AFC group (P < 0.05). The number of intermediate follicles was stable in the low AFC group, indicating consistent development. However, the number of these follicles fluctuated in the high AFC group. Plasma FSH concentrations were higher, whereas E2 and T concentrations were lower in the low AFC group (P < 0.05). E2 concentrations and the E2/P4 ratio in ovulatory follicles and IVG media on day 8 were higher in the high AFC group (P < 0.05). AMH concentrations in plasma and IVG media (P < 0.01) were higher in the high AFC group. CONCLUSIONS The weaker response to FSH of granulosa cells caused low E2 production in the low AFC group, resulting in high FSH concentrations and the consistent development of intermediate follicles. Conversely, higher E2 concentrations suppressed FSH secretion in the high AFC group. Granulosa cells in the high AFC group had the ability to produce more AMH than those in the low AFC group throughout IVG culture.
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Affiliation(s)
- Kenichiro Sakaguchi
- 0000 0001 2173 7691grid.39158.36Laboratory of Theriogenology, Graduate School of Veterinary Medicine, Hokkaido University, Sapporo, Hokkaido 060-0818 Japan
- 0000 0004 0614 710Xgrid.54432.34Research Fellow of the Japan Society for the Promotion of Science, Chiyoda-ku, Tokyo, 102-0083 Japan
| | - Yojiro Yanagawa
- 0000 0001 2173 7691grid.39158.36Laboratory of Theriogenology, Department of Clinical Sciences, Faculty of Veterinary Medicine, Hokkaido University, Sapporo, Hokkaido 060-0818 Japan
| | - Koji Yoshioka
- 0000 0004 0530 9488grid.416882.1National Institute of Animal Health, NARO, Tsukuba, Ibaraki 305-0856 Japan
| | - Tomoko Suda
- 0000 0004 0530 9488grid.416882.1National Institute of Animal Health, NARO, Tsukuba, Ibaraki 305-0856 Japan
| | - Seiji Katagiri
- 0000 0001 2173 7691grid.39158.36Laboratory of Theriogenology, Department of Clinical Sciences, Faculty of Veterinary Medicine, Hokkaido University, Sapporo, Hokkaido 060-0818 Japan
| | - Masashi Nagano
- 0000 0001 2173 7691grid.39158.36Laboratory of Theriogenology, Department of Clinical Sciences, Faculty of Veterinary Medicine, Hokkaido University, Sapporo, Hokkaido 060-0818 Japan
- 0000 0000 9206 2938grid.410786.cPresent address: Laboratory of Animal Reproduction Department of Animal Science, School of Veterinary Medicine, Kitasato University, Aomori, 034-8628 Japan
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Fukui T, Hosotani S, Soda I, Ishiyama H, Ishihara M, Kasajima M, Hiyoshi Y, Igawa S, Katagiri S, Naoki K. P2.04-87 Efficacy of Immune Checkpoint Inhibitors for Locally Advanced Non-Small Cell Lung Cancer Patients Before Durvalumab Approval. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.1592] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Yang Y, Kanno C, Sakaguchi K, Katagiri S, Yanagawa Y, Nagano M. Theca cells can support bovine oocyte growth in vitro without the addition of steroid hormones. Theriogenology 2019; 142:41-47. [PMID: 31574399 DOI: 10.1016/j.theriogenology.2019.09.037] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2019] [Revised: 09/15/2019] [Accepted: 09/22/2019] [Indexed: 10/26/2022]
Abstract
Theca cells (TCs) are essential to folliculogenesis by contributing to steroidogenesis. However, the in vitro growth (IVG) of oocytes co-cultured with TCs has not yet been examined. In the present study, we investigated the feasibility of the IVG of bovine oocyte-cumulus-granulosa cell complexes (OCGCs) co-cultured with TCs and the developmental competence of co-cultured oocytes. OCGCs and TCs were co-cultured without steroid hormone addition for 12 days. Steroidogenesis, the viability of OCGCs, and TC numbers during co-culture were assessed every 4 days. After IVG, oocytes were matured and the nuclear status was evaluated. Some oocytes were inseminated and cultured to examine blastocyst development. During the co-culture, androstenedione production by TCs was only observed during the first 4 days (1.1 ng/well) while estradiol-17β was continuously produced, peaking during the second 4 days (0.5 ng/well). The number of TCs decreased to ∼60% of the seeding number (4.0 × 104 cells/well) during the first 4 days, and was maintained thereafter. The majority of co-cultured OCGCs (82.7%) survived after 12-day IVG. Only a few OCGCs (6.2%) survived in the OCGC culture without TCs (p < 0.01); however, the addition of androstenedione to the culture medium markedly improved survivability to 80.1%, which was similar to that in the co-culture with TCs. In the subsequent development of oocytes derived from the co-culture, 58.3% reached metaphase II stage, 58.7% cleaved, and 17.3% developed to blastocysts, which were similar values to those of oocytes cultured with the addition of androstenedione. In conclusion, TC-produced androgen contributes to OCGC growth and the acquisition of subsequent embryonic developmental competence.
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Affiliation(s)
- Yinghua Yang
- Laboratory of Theriogenology, Department of Veterinary Clinical Sciences, Graduate School of Veterinary Medicine, Hokkaido University, Sapporo, 060-0818, Japan.
| | - Chihiro Kanno
- Laboratory of Theriogenology, Department of Veterinary Clinical Sciences, Graduate School of Veterinary Medicine, Hokkaido University, Sapporo, 060-0818, Japan.
| | - Kenichiro Sakaguchi
- Laboratory of Theriogenology, Department of Veterinary Clinical Sciences, Graduate School of Veterinary Medicine, Hokkaido University, Sapporo, 060-0818, Japan.
| | - Seiji Katagiri
- Laboratory of Theriogenology, Department of Clinical Sciences, Division of Veterinary Medicine, Faculty of Veterinary Medicine, Hokkaido University, Sapporo, 060-0818, Japan.
| | - Yojiro Yanagawa
- Laboratory of Theriogenology, Department of Clinical Sciences, Division of Veterinary Medicine, Faculty of Veterinary Medicine, Hokkaido University, Sapporo, 060-0818, Japan.
| | - Masashi Nagano
- Laboratory of Theriogenology, Department of Clinical Sciences, Division of Veterinary Medicine, Faculty of Veterinary Medicine, Hokkaido University, Sapporo, 060-0818, Japan.
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Torii Y, Matsumoto N, Sakamoto H, Nagano M, Katagiri S, Yanagawa Y. Monitoring follicular dynamics using ultrasonography in captive brown bears (Ursus arctos) during the breeding season. Theriogenology 2019; 140:164-170. [PMID: 31476686 DOI: 10.1016/j.theriogenology.2019.08.027] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2019] [Revised: 08/22/2019] [Accepted: 08/23/2019] [Indexed: 10/26/2022]
Abstract
Artificial insemination (AI) may be a useful tool in the reproductive management of endangered animals, including bears. To establish an AI program for bears, we investigated follicular dynamics using weekly transrectal ultrasonography in six captive brown bears. Along with ultrasonography, we monitored plasma progesterone (P4) and estradiol-17β (E2) concentrations. Furthermore, two bears were administered a gonadotropin releasing hormone (GnRH) agonist to induce ovulation on the first day on which the largest follicle reached more than 10.0 mm in diameter. Brown bears showed two patterns of follicular development in the early and late periods of the breeding season. In the early period (May to mid-June), multiple follicular waves were observed; namely, many follicles developed, and the largest follicles grew to less than 6.0 mm in diameter then regressed. In the late period (mid-June to July), one or two follicles grew to greater than 6.0 mm in diameter and developed as dominant follicles. Moreover, the growth rate of the largest follicle in the late period was faster than that in the early period of the breeding season. One bear with a follicle of 13.1 mm ovulated spontaneously, and one bear ovulated when the follicle was 10.2 mm in diameter after GnRH agonist treatment. Plasma E2 concentrations increased and showed peaks five to seven days before the largest follicles reached their maximum size. Plasma P4 concentrations increased on the day the corpus luteum could be detected using ultrasonography. This is the first study that showed there are two patterns of follicular development in brown bears. Furthermore, the largest follicle reaching greater than 10.0 mm in diameter could be an indicator of the appearance of ovulatory follicles.
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Affiliation(s)
- Yoshiko Torii
- Laboratory of Theriogenology, Department of Clinical Sciences, Graduate School of Veterinary Medicine, Hokkaido University, Sapporo, 060-0818, Japan
| | - Naoya Matsumoto
- Noboribetsu Bear Park, Noboribetsu, Hokkaido, 059-0515, Japan
| | | | - Masashi Nagano
- Laboratory of Theriogenology, Department of Clinical Sciences, Division of Veterinary Medicine, Faculty of Veterinary Medicine, Hokkaido University, Sapporo, 060-0818, Japan
| | - Seiji Katagiri
- Laboratory of Theriogenology, Department of Clinical Sciences, Division of Veterinary Medicine, Faculty of Veterinary Medicine, Hokkaido University, Sapporo, 060-0818, Japan
| | - Yojiro Yanagawa
- Laboratory of Theriogenology, Department of Clinical Sciences, Division of Veterinary Medicine, Faculty of Veterinary Medicine, Hokkaido University, Sapporo, 060-0818, Japan.
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Sakaguchi K, Maylem ERS, Tilwani RC, Yanagawa Y, Katagiri S, Atabay EC, Atabay EP, Nagano M. Effects of follicle-stimulating hormone followed by gonadotropin-releasing hormone on embryo production by ovum pick-up and in vitro fertilization in the river buffalo (Bubalus bubalis). Anim Sci J 2019; 90:690-695. [PMID: 30854764 PMCID: PMC6593430 DOI: 10.1111/asj.13196] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2018] [Revised: 01/13/2019] [Accepted: 02/04/2019] [Indexed: 12/20/2022]
Abstract
In this study, we examined the effects of superstimulation using follicle‐stimulating hormone (FSH) followed by gonadotropin‐releasing hormone (GnRH) on buffalo embryo production by ultrasound‐guided ovum pick‐up (OPU) and in vitro fertilization (IVF). Nine Murrah buffaloes were subjected to OPU‐IVF without superstimulation (control). The morphologies of the oocytes collected were evaluated, and oocytes were then submitted to in vitro maturation (IVM). Two days after OPU, same nine buffaloes were treated with twice‐daily injections of FSH for 3 days for superstimulation followed by a GnRH injection. Oocytes were collected by OPU 23–24 hr after the GnRH injection and submitted to IVM (the superstimulated group). The total number of follicles, number of follicles with a diameter > 8 mm, and number of oocytes surrounded by multi‐layered cumulus cells were higher in the superstimulated group than in the control group (p ≤ 0.05). After IVF, the percentages of cleavage and development to blastocysts were higher in the superstimulated group than in the control group (p < 0.05). In conclusion, superstimulation improved the quality of oocytes and the embryo productivity of OPU‐IVF in river buffaloes.
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Affiliation(s)
- Kenichiro Sakaguchi
- Laboratory of Theriogenology, Graduate School of Veterinary Medicine, Hokkaido University, Sapporo, Japan.,Research Fellow of Japan Society for the Promotion of Science, Tokyo, Japan
| | - Excel Rio S Maylem
- Reproductive Biotechnology and Physiology Laboratory, Philippine Carabao Center, National Headquarters, Science City of Munoz, Nueva Ecija, Philippines
| | - Ramesh C Tilwani
- Reproductive Biotechnology and Physiology Laboratory, Philippine Carabao Center, National Headquarters, Science City of Munoz, Nueva Ecija, Philippines
| | - Yojiro Yanagawa
- Laboratory of Theriogenology, Department of Clinical Sciences, Faculty of Veterinary Medicine, Hokkaido University, Sapporo, Japan
| | - Seiji Katagiri
- Laboratory of Theriogenology, Department of Clinical Sciences, Faculty of Veterinary Medicine, Hokkaido University, Sapporo, Japan
| | - Edwin C Atabay
- Reproductive Biotechnology and Physiology Laboratory, Philippine Carabao Center, National Headquarters, Science City of Munoz, Nueva Ecija, Philippines
| | - Eufrocina P Atabay
- Reproductive Biotechnology and Physiology Laboratory, Philippine Carabao Center, National Headquarters, Science City of Munoz, Nueva Ecija, Philippines
| | - Masashi Nagano
- Laboratory of Theriogenology, Department of Clinical Sciences, Faculty of Veterinary Medicine, Hokkaido University, Sapporo, Japan
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Abdel-Ghani MA, Yanagawa Y, Balboula AZ, Sakaguchi K, Kanno C, Katagiri S, Takahashi M, Nagano M. Astaxanthin improves the developmental competence of in vitro-grown oocytes and modifies the steroidogenesis of granulosa cells derived from bovine early antral follicles. Reprod Fertil Dev 2019; 31:272-281. [DOI: 10.1071/rd17527] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2017] [Accepted: 06/29/2018] [Indexed: 12/22/2022] Open
Abstract
In this study we investigated the effect of astaxanthin (Ax), which exhibits strong antioxidant activity, during invitro growth (IVG) on the developmental competence of oocytes and steroidogenesis of granulosa cells derived from early antral follicles. Bovine oocyte–cumulus–granulosa complexes collected from early antral follicles were cultured for 12 days in the presence or absence (control) of 500µM Ax. The viability of oocytes and antrum formation in the granulosa cell layer during IVG culture were greater in the presence than absence of Ax (P<0.05). Regardless of Ax treatment, 17β-oestradiol production increased during IVG culture; however, progesterone production was significantly lower in the presence than absence of Ax (P<0.05). Reactive oxygen species levels were lower in Ax-treated oocytes than in controls after IVG (P<0.05). Although nuclear maturation and cleavage rates did not differ between the Ax-treated and control groups, Ax treatment led to weaker cathepsin B activity in oocytes and better blastocyst rates than in controls (P<0.05). Accordingly, Ax treatment during IVG increased the total number of cells in blastocysts (P<0.05). These results indicate that Ax supplementation of IVG medium improves the quality of bovine oocytes due to its antioxidative effects on growing oocytes and its suppression of the luteinisation of granulosa cells.
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Sakaguchi K, Yanagawa Y, Yoshioka K, Suda T, Kawano K, Katagiri S, Nagano M. 120 Effects of antral follicle count in ovaries on follicular development and endocrine dynamics of follicle-stimulating hormone and steroid hormones in cattle. Reprod Fertil Dev 2019. [DOI: 10.1071/rdv31n1ab120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
The antral follicle count (AFC) in mammalian ovaries positively correlates with female fertility. We have reported previously that cumulus-oocyte complexes derived from high-AFC ovaries produce more oestradiol-17β (E2) and have higher developmental competence than those from low-AFC ovaries in in vitro growth (Sakaguchi et al. WCRB2017, Okinawa, Japan; 1-15). We also indicated that follicular growth was different between high- and low-AFC cows, and that follicular deviation occurred earlier in high-AFC cows (Nagai et al. 2015 Anim. Reprod. Sci. 163, 172-178). To clarify the causes of the higher E2 production and earlier follicular deviation in high-AFC cows, we investigated circulating steroid hormones and FSH during the oestrous cycle, as well as steroidogenesis in follicles at different phases of the oestrous cycle. Four high-AFC cows (>40 follicles) and 3 low-AFC cows (<20 follicles) based on the peak AFC were used. We ablated their follicles 8 days after oestrus and administered prostaglandin F2α on Day 12. After 40h of prostaglandin F2α injection, follicular fluid of a dominant follicle (preovulatory phase) was collected and subordinate follicles were ablated. Gonadotropin-releasing hormone was then injected to induce LH surge. Seven days after gonadotropin-releasing hormone, follicular fluids were collected from dominant follicles (luteal phase) and all follicles were ablated. Four days later, follicular fluids were again collected from the largest follicles (selection phase). Steroid hormones in follicular fluids were measured by enzyme immunoassay. Throughout the study, we daily examined ovaries by ultrasonography and collected blood for hormone measurements. We analysed data using two-way ANOVA followed by Tukey-Kramer or Student’s t test. The number of small follicles (<4mm) was greater in high-AFC than low-AFC groups (low v. high=7.6v. 46.9; P<0.05), whereas that of large follicles (>8mm) was similar between groups (0.8v. 0.8) at any time. Although the number of medium-sized follicles (4-8mm) was not affected in the low-AFC group (4.2-6.7) after follicle ablation, the number increased from 1 to 4 days (10.5 to 17.8) then decreased 6 days after follicle ablation (11.5) in the high-AFC group, which means that degradation of follicles occurs at selection phase in high-AFC cows. Peripheral FSH concentration was higher (low v. high: 4.7v. 2.1 ng/mL), but E2 concentration was lower in the low-AFC (2.4 pg/mL) than high-AFC group (3.3 pg/mL) during the selection phase (P<0.05). Although follicular diameter was similar in both groups at any phase, E2 (low v. high=333.8v. 1127.4 ng/mL; P<0.05) and testosterone (low v. high=16.7v. 35.0 ng/mL; P=0.07), but not progesterone, concentrations were higher in the high-AFC than low-AFC group in the preovulatory phase. These findings suggest that a lower response to FSH causes low E2 production in the low-AFC group, resulting in high FSH concentration and a consistent development of medium-sized follicles. Conversely, higher E2 concentration suppresses FSH secretion, resulting in obvious degradation of follicles in the high-AFC group at the selection phase.
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Sakaguchi K, Tanida T, Abdel-Ghani MA, Kanno C, Yanagawa Y, Katagiri S, Nagano M. Relationship between the antral follicle count in bovine ovaries from a local abattoir and steroidogenesis of granulosa cells cultured as oocyte-cumulus-granulosa complexes. J Reprod Dev 2018; 64:503-510. [PMID: 30135328 PMCID: PMC6305852 DOI: 10.1262/jrd.2018-080] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
The antral follicle count (AFC) is used as an indicator of cow fertility. We herein investigated the relationship between AFC and the steroidogenesis of granulosa cells and confirmed the
developmental competence of oocytes derived from early antral follicles (0.5–1.0 mm) using in vitro growth culture. Slaughterhouse-derived ovaries were divided into high (≥
25) and low (< 25) AFC groups based on AFC (≥ 2.0 mm). Oocyte-cumulus-granulosa complexes (OCGCs) collected from early antral follicles were cultured for 12 days. The total number,
viability, and diameter of granulosa cells and estradiol-17β and progesterone production during the culture were evaluated. Surviving oocytes on day 12 were subjected to in
vitro maturation, and their volume and nuclear status were evaluated. Some oocytes were subjected to the evaluation of developmental competence to blastocysts. Although the total
number and viability of granulosa cells did not differ between the groups, granulosa cell diameters were smaller in the high AFC group than in the low AFC group. The estradiol-17β and
progesterone ratio on day 8 was higher in the high AFC group than in the low AFC group. Oocyte volumes and nuclear maturation rates were greater in the high AFC group than in the low AFC
group. The development rate to blastocysts was 9.1% in the high AFC group, while no oocytes developed to blastocysts in the low AFC group. Therefore, estradiol-17β production by granulosa
cells appears to be greater in high AFC cattle than in low AFC cattle, thereby promoting the acquisition of oocyte competence.
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Affiliation(s)
- Kenichiro Sakaguchi
- Laboratory of Theriogenology, Graduate School of Veterinary Medicine, Hokkaido University, Sapporo 060-0818, Japan.,Research Fellow of Japan Society for the Promotion of Science
| | - Takashi Tanida
- Laboratory of Theriogenology, Graduate School of Veterinary Medicine, Hokkaido University, Sapporo 060-0818, Japan
| | - Mohammed A Abdel-Ghani
- Department of Theriogenology, Faculty of Veterinary Medicine, Assuit University, Assuit 71515, Egypt.,Laboratory of Theriogenology, Department of Clinical Sciences, Faculty of Veterinary Medicine, Hokkaido University, Sapporo 060-0818, Japan
| | - Chihiro Kanno
- Laboratory of Theriogenology, Graduate School of Veterinary Medicine, Hokkaido University, Sapporo 060-0818, Japan
| | - Yojiro Yanagawa
- Laboratory of Theriogenology, Department of Clinical Sciences, Faculty of Veterinary Medicine, Hokkaido University, Sapporo 060-0818, Japan
| | - Seiji Katagiri
- Laboratory of Theriogenology, Department of Clinical Sciences, Faculty of Veterinary Medicine, Hokkaido University, Sapporo 060-0818, Japan
| | - Masashi Nagano
- Laboratory of Theriogenology, Department of Clinical Sciences, Faculty of Veterinary Medicine, Hokkaido University, Sapporo 060-0818, Japan
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Sakaguchi K, Ideta A, Yanagawa Y, Nagano M, Katagiri S, Konishi M. Effect of a single epidural administration of follicle-stimulating hormone via caudal vertebrae on superstimulation for in vivo and in vitro embryo production in Japanese black cows. J Reprod Dev 2018; 64:451-455. [PMID: 29910214 PMCID: PMC6189567 DOI: 10.1262/jrd.2018-007] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Here, we describe a simplified procedure for embryo production in the Japanese black cow that uses a single caudal epidural injection of follicle-stimulating hormone (FSH). First, we compared the efficiency of superovulation for in vivo embryo production between conventional multiple FSH treatment (control, n = 10) and single epidural administration (epidural, n = 5). The number of transferable blastocysts was similar between control and epidural groups (4.7 ± 3.5 and 9.0 ± 6.0, respectively). Next, we compared in vitro embryo production by ovum pick-up and in vitro fertilization (OPU-IVF) between control (n = 12) and epidural groups (n = 12). The rate of development to transferable blastocysts was higher in the epidural group than in the control (23.3 vs. 10.5%, P < 0.001). In conclusion, a single epidural administration of FSH can induce follicular development comparable to that of the conventional superovulation protocol and may improve the productivity of OPU-IVF.
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Affiliation(s)
- Kenichiro Sakaguchi
- Zen-noh Embryo Transfer Center, Hokkaido 080-1407, Japan.,Laboratory of Theriogenology, Graduate School of Veterinary Medicine, Hokkaido University, Hokaido 060-0818, Japan
| | - Atsushi Ideta
- Zen-noh Embryo Transfer Center, Hokkaido 080-1407, Japan
| | - Yojiro Yanagawa
- Laboratory of Theriogenology, Department of Clinical Sciences, Faculty of Veterinary Medicine, Hokkaido University, Hokkaido 060-0818, Japan
| | - Masashi Nagano
- Laboratory of Theriogenology, Department of Clinical Sciences, Faculty of Veterinary Medicine, Hokkaido University, Hokkaido 060-0818, Japan
| | - Seiji Katagiri
- Laboratory of Theriogenology, Department of Clinical Sciences, Faculty of Veterinary Medicine, Hokkaido University, Hokkaido 060-0818, Japan
| | - Masato Konishi
- Zen-noh Embryo Transfer Center, Hokkaido 080-1407, Japan
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Abdel-Ghani MA, Sakaguchi K, Kanno C, Yanagawa Y, Katagiri S, Nagano M. Effects of pre-maturational culture duration on developmental competence of bovine small-sized oocytes. J Reprod Dev 2018; 64:365-369. [PMID: 29798966 PMCID: PMC6105738 DOI: 10.1262/jrd.2018-004] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Abstract
We investigated the effects of pre-maturational (pre-IVM) culture on the developmental competence of small-sized bovine oocytes (110 and < 115 µm). Oocytes were cultured with
3-isobutyl-1-methylxanthine (IBMX) for 0, 5, or 10 h and subjected to in vitro maturation, fertilization, and culture. The cleavage rate (73%) of small-sized oocytes with 5
h pre-IVM was higher than those with 0 and 10 h pre-IVM (61 and 62%, respectively). The blastocyst rate (16%) of embryos derived from small-sized oocytes with 5 h pre-IVM was higher than
those with 0 and 10 h pre-IVM (9 and 8%, respectively). In addition, small-sized oocytes with 5 h pre-IVM had a higher mean cell number in blastocysts (134.1 ± 34.8) than those with 0 and 10
h pre-IVM (100.2 ± 17.2 and 107.8 ± 23.7, respectively). In conclusion, the pre-IVM of small-sized oocytes with IBMX for 5 h improved the developmental competence of bovine oocytes, as well
as the quality of blastocysts.
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Affiliation(s)
- Mohammed A Abdel-Ghani
- Laboratory of Theriogenology, Department of Clinical Sciences, Faculty of Veterinary Medicine, Hokkaido University, Sapporo 060-0818, Japan.,Department of Theriogenology, Faculty of Veterinary Medicine, Assuit University, Assuit, 71515, Egypt
| | - Kenichiro Sakaguchi
- Laboratory of Theriogenology, Graduate School of Veterinary Medicine, Hokkaido University, Sapporo 060-0818, Japan
| | - Chihiro Kanno
- Laboratory of Theriogenology, Graduate School of Veterinary Medicine, Hokkaido University, Sapporo 060-0818, Japan
| | - Yojiro Yanagawa
- Laboratory of Theriogenology, Department of Clinical Sciences, Faculty of Veterinary Medicine, Hokkaido University, Sapporo 060-0818, Japan
| | - Seiji Katagiri
- Laboratory of Theriogenology, Department of Clinical Sciences, Faculty of Veterinary Medicine, Hokkaido University, Sapporo 060-0818, Japan
| | - Masashi Nagano
- Laboratory of Theriogenology, Department of Clinical Sciences, Faculty of Veterinary Medicine, Hokkaido University, Sapporo 060-0818, Japan
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Sugiura T, Akiyoshi S, Inoue F, Yanagawa Y, Moriyoshi M, Tajima M, Katagiri S. Relationship between bovine endometrial thickness and plasma progesterone and estradiol concentrations in natural and induced estrus. J Reprod Dev 2018; 64:135-143. [PMID: 29398684 PMCID: PMC5902901 DOI: 10.1262/jrd.2017-139] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
The objective of this study was to investigate cyclical changes in endometrial thickness in relation to progesterone (P4) and estradiol-17β (E2) concentrations during natural and induced estrus in 15 cows. In the prostaglandin (PG) F2α-induced estrus group, ultrasonography (USG) at 6-h intervals was used to determine endometrial thickness 48-24 h before the PGF2α treatment until 24 h after ovulation (ovulation = Day 0). In the natural estrus group, USG was performed every 48 h from Day 3 to Days 15-18 after the first ovulation, and then every 6 h until 24 h after ovulation. Endometrial thickness was standardized using Day 13 as a reference day. Blood was collected during every USG examination and plasma P4 and E2 concentrations were determined. Endometrial thickness of the induced estrus group (n = 11) was greater than that of the natural estrus group (n = 9) between 60 and 12 h before ovulation (P < 0.05). In the natural estrus group, prior to an increase in endometrial thickness, a decrease in P4 and an increase in E2 were detected. In the induced estrus group, based on the time of ovulation, an increase in endometrial thickness was detected at the same time of a decrease in P4 before an increase in E2. These results suggest that decreases in P4 concentrations may be a cue to changes in endometrial thickness, while increases in E2 concentrations appear to sustain and/or enhance these changes.
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Affiliation(s)
- Tomochika Sugiura
- Department of Large Animal Clinical Science, School of Veterinary Medicine, Rakuno Gakuen University, Hokkaido 069-8501, Japan
| | - Shun Akiyoshi
- Department of Large Animal Clinical Science, School of Veterinary Medicine, Rakuno Gakuen University, Hokkaido 069-8501, Japan
| | - Fumihiro Inoue
- Department of Large Animal Clinical Science, School of Veterinary Medicine, Rakuno Gakuen University, Hokkaido 069-8501, Japan
| | - Yojiro Yanagawa
- Department of Clinical Sciences, Faculty of Veterinary Medicine, Hokkaido University, Hokkaido 060-0818, Japan
| | - Masaharu Moriyoshi
- Department of Large Animal Clinical Science, School of Veterinary Medicine, Rakuno Gakuen University, Hokkaido 069-8501, Japan
| | - Motoshi Tajima
- Department of Large Animal Clinical Science, School of Veterinary Medicine, Rakuno Gakuen University, Hokkaido 069-8501, Japan
| | - Seiji Katagiri
- Department of Clinical Sciences, Faculty of Veterinary Medicine, Hokkaido University, Hokkaido 060-0818, Japan.,Department of Environmental Veterinary Sciences, Faculty of Veterinary Medicine, Hokkaido University, Hokkaido 060-0818, Japan
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Toishi Y, Tsunoda N, Nagata SI, Kirisawa R, Nagaoka K, Watanabe G, Yanagawa Y, Katagiri S, Taya K. Evaluation of the chemiluminescent enzyme immunoassay system for the measurement of testosterone in the serum and whole blood of stallions. J Reprod Dev 2017; 64:41-47. [PMID: 29129877 PMCID: PMC5830357 DOI: 10.1262/jrd.2017-099] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
Testosterone (T) concentration is a useful indicator of reproductive function in male animals. However, T concentration is not usually measured in veterinary clinics, partly due to the unavailability of reliable and
rapid assays for animal samples. In this study, a rapid chemiluminescent enzyme immunoassay system (CLEIA system) that was developed for the measurement of T concentration in humans use was validated for stallion blood
samples. First, serum T concentrations were measured using the CLEIA system and compared with those measured by a fluoroimmunoassay that has been validated for use in stallions. The serum T concentrations measured by the
two methods were highly correlated (r = 0.9865, n = 56). Second, to validate the use of whole blood as assay samples, T concentrations in whole blood and in the serum were measured by the CLEIA system. T concentrations
in both samples were highly correlated (r = 0.9665, n = 64). Finally, to evaluate the practical value of the CLEIA system in clinical settings, T concentrations were measured in three stallions with reproductive
abnormalities after the administration of human chorionic gonadotropin (hCG). Two stallions with small or absent testes in the scrotum showed an increase in T production in response to hCG administration and one stallion
with seminoma did not. In conclusion, the CLEIA system was found to be a rapid and reliable tool for measuring T concentrations in stallions and may improve reproductive management in clinical settings and in breeding
studs.
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Affiliation(s)
- Yuko Toishi
- Shadai Stallion Station, Hokkaido 059-1432, Japan.,Laboratory of Veterinary Virology, Department of Pathobiology, School of Veterinary Medicine, Rakuno Gakuen University, Hokkaido 069-8501, Japan
| | | | - Shun-Ichi Nagata
- Genetic Analysis Department, Laboratory of Racing Chemistry, Tochigi 320-0851, Japan
| | - Rikio Kirisawa
- Laboratory of Veterinary Virology, Department of Pathobiology, School of Veterinary Medicine, Rakuno Gakuen University, Hokkaido 069-8501, Japan
| | - Kentaro Nagaoka
- Laboratory of Veterinary Physiology, Cooperative Department of Veterinary Medicine, Faculty of Agriculture, Tokyo University of Agriculture and Technology, Tokyo 183-8509, Japan.,United Graduated School of Veterinarian Science, Gifu University, Gifu 501-1193, Japan
| | - Gen Watanabe
- Laboratory of Veterinary Physiology, Cooperative Department of Veterinary Medicine, Faculty of Agriculture, Tokyo University of Agriculture and Technology, Tokyo 183-8509, Japan.,United Graduated School of Veterinarian Science, Gifu University, Gifu 501-1193, Japan
| | - Yojiro Yanagawa
- Laboratory of Theriogenology, Department of Veterinary Clinical Sciences, Graduate School of Veterinary Medicine, Hokkaido University, Hokkaido 060-0808, Japan
| | - Seiji Katagiri
- Laboratory of Theriogenology, Department of Veterinary Clinical Sciences, Graduate School of Veterinary Medicine, Hokkaido University, Hokkaido 060-0808, Japan
| | - Kazuyoshi Taya
- Shadai Stallion Station, Hokkaido 059-1432, Japan.,Laboratory of Veterinary Physiology, Cooperative Department of Veterinary Medicine, Faculty of Agriculture, Tokyo University of Agriculture and Technology, Tokyo 183-8509, Japan
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Okuyama MW, Sugiura T, Moriyoshi M, Yamashita K, Tamura J, Katagiri S. A transvaginal endoscopy-based technique for performing ovarian examinations in sows. J Reprod Dev 2017; 63:617-622. [PMID: 29033397 PMCID: PMC5735274 DOI: 10.1262/jrd.2017-063] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022] Open
Abstract
For examining pig ovaries, which have complex structures, laparoscopy is a useful technique, but requires general anesthesia; therefore, it cannot be performed repeatedly within a short period of time. We report a
transvaginal endoscopy-based technique for conducting ovarian examinations without general anesthesia. Sows were sedated in pig stalls. Using a colonoscope, the vaginal wall was punctured with a trocar. To avoid the
trocar being caught in the broad ligament of the uterus or the connective tissue around the vagina, the trocar was inserted close to the external uterine os and between the 2:00 and 3:00 or the 9:00 and 10:00 positions
(in a clockwise direction). Then, a urethroscope was inserted into the abdomen, and an examination was carried out after the ovaries had been moved towards the urethroscope camera via rectal palpation. This less invasive
procedure may allow repeated examinations and will increase our understanding of ovarian dynamics in pigs.
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Affiliation(s)
- Minami W Okuyama
- Department of Large Animal Clinical Sciences, School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu 069-8501, Japan.,Department of Veterinary Clinical Sciences, Graduate School of Veterinary Medicine, Hokkaido University, Sapporo 060-0818, Japan.,Faculty of Medicine, Oita University, Oita 879-5593, Japan
| | - Tomochika Sugiura
- Department of Large Animal Clinical Sciences, School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu 069-8501, Japan
| | - Masaharu Moriyoshi
- Department of Large Animal Clinical Sciences, School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu 069-8501, Japan
| | - Kazuto Yamashita
- Department of Small Animal Clinical Sciences, School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu 069-8501, Japan
| | - Jun Tamura
- Department of Small Animal Clinical Sciences, School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu 069-8501, Japan
| | - Seiji Katagiri
- Department of Large Animal Clinical Sciences, School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu 069-8501, Japan.,Department of Environmental Veterinary Sciences, Graduate School of Veterinary Medicine, Hokkaido University, Sapporo 060-0818, Japan
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Gocho K, Akeo K, Kubota D, Katagiri S, Kikuchi S, Hayashi T, Yamaki K, Takahashi H, Kameya S. High resolution imaging analysis of female carriers and patients of Choroideremia with CHM gene mutation. Acta Ophthalmol 2017. [DOI: 10.1111/j.1755-3768.2017.0f014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- K. Gocho
- Ophthalmology; Nippon Medical School Chiba Hokusoh Hosp; Inzai Japan
| | - K. Akeo
- Ophthalmology; Nippon Medical School Chiba Hokusoh Hosp; Inzai Japan
| | - D. Kubota
- Ophthalmology; Nippon Medical School Chiba Hokusoh Hosp; Inzai Japan
| | - S. Katagiri
- Ophthalmology; The Jikei University School of Medicine; Tokyo Japan
| | - S. Kikuchi
- Ophthalmology; Nippon Medical School Chiba Hokusoh Hosp; Inzai Japan
| | - T. Hayashi
- Ophthalmology; The Jikei University School of Medicine; Tokyo Japan
| | - K. Yamaki
- Ophthalmology; Nippon Medical School Chiba Hokusoh Hosp; Inzai Japan
| | - H. Takahashi
- Ophthalmology; Nippon Medical School; Tokyo Japan
| | - S. Kameya
- Ophthalmology; Nippon Medical School Chiba Hokusoh Hosp; Inzai Japan
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Katagiri S. ADMINISTRATIVE FUNCTIONS OF NURSING HOMES: COMPARATIVE ANALYSIS ON MODEL CASE IN THE U.S. AND JAPAN. Innov Aging 2017. [DOI: 10.1093/geroni/igx004.4188] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- S. Katagiri
- Kagoshima University, Kagoshima, Kagoshima, Japan
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Kanno C, Sakamoto KQ, Yanagawa Y, Takahashi Y, Katagiri S, Nagano M. Comparison of sperm subpopulation structures in first and second ejaculated semen from Japanese black bulls by a cluster analysis of sperm motility evaluated by a CASA system. J Vet Med Sci 2017. [PMID: 28626150 PMCID: PMC5573822 DOI: 10.1292/jvms.17-0012] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022] Open
Abstract
In the present study, bull sperm in the first and second ejaculates were divided into
subpopulations based on their motility characteristics using a cluster analysis of data
from computer-assisted sperm motility analysis (CASA). Semen samples were collected from 4
Japanese black bulls. Data from 9,228 motile sperm were classified into 4 clusters; 1)
very rapid and progressively motile sperm, 2) rapid and circularly motile sperm with
widely moving heads, 3) moderately motile sperm with heads moving frequently in a short
length, and 4) poorly motile sperm. The percentage of cluster 1 varied between bulls. The
first ejaculates had a higher proportion of cluster 2 and lower proportion of cluster 3
than the second ejaculates.
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Affiliation(s)
- Chihiro Kanno
- Laboratory of Theriogenology, Department of Veterinary Clinical Sciences, Graduate School of Veterinary Medicine, Hokkaido University, Kita-18, Nishi-9, Kita-ku, Sapporo 060-0818, Japan
| | - Kentaro Q Sakamoto
- Laboratory of Physiology, Department of Biomedical Sciences, Graduate School of Veterinary Medicine, Hokkaido University, Kita-18, Nishi-9, Kita-ku, Sapporo 060-0818, Japan
| | - Yojiro Yanagawa
- Laboratory of Theriogenology, Department of Veterinary Clinical Sciences, Graduate School of Veterinary Medicine, Hokkaido University, Kita-18, Nishi-9, Kita-ku, Sapporo 060-0818, Japan
| | - Yoshiyuki Takahashi
- Genetics Hokkaido Association, Kita-4, Nishi-1, Kita-ku, Sapporo 060-0004, Japan
| | - Seiji Katagiri
- Laboratory of Theriogenology, Department of Veterinary Clinical Sciences, Graduate School of Veterinary Medicine, Hokkaido University, Kita-18, Nishi-9, Kita-ku, Sapporo 060-0818, Japan.,Department of Environmental Veterinary Sciences, Graduate School of Veterinary Medicine, Hokkaido University, Kita-18, Nishi-9, Kita-ku, Sapporo 060-0818, Japan
| | - Masashi Nagano
- Laboratory of Theriogenology, Department of Veterinary Clinical Sciences, Graduate School of Veterinary Medicine, Hokkaido University, Kita-18, Nishi-9, Kita-ku, Sapporo 060-0818, Japan
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Yang Y, Kanno C, Sakaguchi K, Yanagawa Y, Katagiri S, Nagano M. Extension of the culture period for the in vitro
growth of bovine oocytes in the presence of bone morphogenetic protein-4 increases oocyte diameter, but impairs subsequent developmental competence. Anim Sci J 2017; 88:1686-1691. [DOI: 10.1111/asj.12841] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2016] [Accepted: 04/17/2017] [Indexed: 01/26/2023]
Affiliation(s)
- Yinghua Yang
- Laboratory of Theriogenology; Department of Veterinary Clinical Sciences; Graduate School of Veterinary Medicine; Hokkaido University; Sapporo Hokkaido Japan
| | - Chihiro Kanno
- Laboratory of Theriogenology; Department of Veterinary Clinical Sciences; Graduate School of Veterinary Medicine; Hokkaido University; Sapporo Hokkaido Japan
| | - Kenichiro Sakaguchi
- Laboratory of Theriogenology; Department of Veterinary Clinical Sciences; Graduate School of Veterinary Medicine; Hokkaido University; Sapporo Hokkaido Japan
| | - Yojiro Yanagawa
- Laboratory of Theriogenology; Department of Veterinary Clinical Sciences; Graduate School of Veterinary Medicine; Hokkaido University; Sapporo Hokkaido Japan
| | - Seiji Katagiri
- Laboratory of Theriogenology; Department of Veterinary Clinical Sciences; Graduate School of Veterinary Medicine; Hokkaido University; Sapporo Hokkaido Japan
| | - Masashi Nagano
- Laboratory of Theriogenology; Department of Veterinary Clinical Sciences; Graduate School of Veterinary Medicine; Hokkaido University; Sapporo Hokkaido Japan
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Imanishi S, Takahashi R, Katagiri S, Umezu T, Kobayashi C, Ohyashiki K, Ohyashiki J. Teriflunomide Restores 5-Azacytidine Sensitivity Via Activation of Pyrimidine Salvage in 5-Azacytidine-Resistant Leukemia Cells. Leuk Res 2017. [DOI: 10.1016/s0145-2126(17)30216-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Nagai K, Yanagawa Y, Katagiri S, Nagano M. The relationship between antral follicle count in a bovine ovary and developmental competence of in vitro-grown oocytes derived from early antral follicles. Biomed Res 2016; 37:63-71. [PMID: 26912141 DOI: 10.2220/biomedres.37.63] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
To clarify the relationship between ovarian reserve and the developmental competence of bovine oocytes, oocyte-granulosa complexes (OGCs) collected from early antral follicles (≤ 1 mm) in ovaries with high (≥ 25) and low (<25) antral follicle counts (AFCs) were used. OGCs derived from different AFC groups were cultured for growth followed by maturation, fertilization and blastocyst formation. Viability of OGCs during growth culture was similar between groups; however, OGCs in the high-AFC group had a larger number of granulosa cells than the low-AFC group at 12 days of growth. The proportion of matured oocytes in the high-AFC group was higher than that in the low-AFC group. Mitochondrial activity of oocytes before maturation in the high-AFC group was higher than that in the low-AFC group; however, accumulation of reactive oxygen species was similar between groups. Cleavage rate in the high-AFC group tended to be higher than that in the low-AFC group, although blastocyst development was similar between groups. In conclusion, oocytes derived from ovaries with high AFC have higher maturational ability and fertilizability than those from low AFC. The difference may be caused by high proliferation of granulosa cells from ovaries with high AFC.
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Affiliation(s)
- Katsuhisa Nagai
- Laboratory of Theriogenology, Department of Veterinary Clinical Sciences, Graduate School of Veterinary Medicine, Hokkaido University
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Katagiri S, Akahane D, Amano K, Ohyashiki K. Long-term remission of acquired von Willebrand syndrome associated with multiple myeloma using bortezomib and dexamethasone therapy. Haemophilia 2016; 22:e557-e559. [PMID: 27641423 DOI: 10.1111/hae.13077] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/18/2016] [Indexed: 12/13/2022]
Affiliation(s)
- S Katagiri
- Department of Hematology, Tokyo Medical University, Tokyo, Japan
| | - D Akahane
- Department of Hematology, Tokyo Medical University, Tokyo, Japan
| | - K Amano
- Department of Laboratory Medicine, Tokyo Medical University, Tokyo, Japan
| | - K Ohyashiki
- Department of Hematology, Tokyo Medical University, Tokyo, Japan
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Abstract
Normal cows have 2 peaks in endometrial epidermal growth factor (EGF) concentrations on Days 2–4 and 13–14, and the absence of peaks has been linked to
reduced fertility in repeat breeder (RB) cows. However, the timing of the peaks (i.e., day of examinations) was estimated for a few cows per cycle day.
Therefore, the present study characterized EGF peaks and examined if the absence of peaks in RB cows indicate either peak loss or changed timing. In Study 1, 20
Holstein cows were examined for EGF concentrations between Days 1 and 6 using repeated biopsy of the uterine endometrial tissues. Sixteen cows exhibited
increased EGF concentrations for 2–3 days between Days 2 and 5. All 16 cows exhibited increased EGF concentrations on Day 3. In Study 2, 10 cows were examined
for EGF concentrations between Days 11 and 16. Increased EGF concentrations for 2–3 days were found in 7 cows between Days 12 and 15. All 7 cows exhibited
increased EGF concentrations on Days 13 and 14. In Study 3, 12 RB cows were examined for endometrial EGF concentrations between Days 1 and 6. Four cows
exhibited an increase of EGF concentrations on Days 3 and 4, whereas 8 cows (66.7%) exhibited low EGF concentrations throughout the study period. In conclusion,
Days 3 and 13–14 are suitable days to examine a cyclic change of endometrial EGF concentrations. Further, low EGF concentrations on Day 3 in RB cows indicated
an absence, but not altered timing, of the EGF peak.
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Affiliation(s)
- Seiji Katagiri
- Department of Environmental Veterinary Sciences, Graduate School of Veterinary Medicine, Hokkaido University, Sapporo 060-0818, Japan
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Maekawa S, Katagiri S, Takeuchi Y, Komazaki R, Ohtsu A, Udagawa S, Izumi Y. Bone metabolic microarray analysis of ligature-induced periodontitis in streptozotocin-induced diabetic mice. J Periodontal Res 2016; 52:233-245. [PMID: 27108916 DOI: 10.1111/jre.12387] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/13/2016] [Indexed: 12/27/2022]
Abstract
BACKGROUND AND OBJECTIVE Periodontal disease is a chronic infectious disease that results in bone loss. Many epidemiological studies have reported the progression of periodontal tissue destruction in patients with diabetes; however, the associated mechanism remains unclear. In this study, we comprehensively investigated how diabetes affects the periodontal tissue and alveolar bone loss using a ligature-induced periodontitis model in streptozotocin-induced diabetic (STZ) mice. MATERIAL AND METHODS Diabetes was induced by intraperitoneal injection with streptozotocin in 6-wk-old C57/BL6J male mice. A silk ligature was tied around the maxillary left second molar in 9-wk-old wild-type (WT) and STZ mice. Bone loss was evaluated at 3 and 7 d after ligation. mRNA expression levels in the gingiva between the two groups were examined by DNA microarray and quantitative polymerase chain reaction at 1, 3 and 7 d post-ligation. Tartrate-resistant acid phosphatase and alkaline phosphatase staining of the periodontal tissue was performed for evaluation of osteoclasts and osteoblasts in histological analysis. RESULTS In the gingiva, hyperglycemia upregulated the osteoprotegerin (Opg) mRNA expression and downregulated Osteocalcin mRNA expression. In the ligated gingiva, tumor necrosis factor-α (Tnf-α) mRNA expression was upregulated at 1 d post-ligation in STZ mice but not in WT mice. At 3 d post-ligation, alveolar bone loss was observed in STZ mice, but not in WT mice. Significantly severe alveolar bone loss was observed in STZ mice compared to WT mice at 7 d post-ligation. Bone metabolic analysis using DNA microarray showed significant downregulation in the mRNA expression of glioma-associated oncogene homologue 1 (Gli1) and collagen type VI alpha 1 (Col6a1) at the gingiva of the ligated site in STZ mice compared to that in WT mice. Quantitative polymerase chain reaction showed that Gli1 and Col6a1 mRNA expression levels were significantly downregulated in the gingiva of the ligated site in STZ mice compared to WT mice. Histological analysis showed lower alkaline phosphatase activity in STZ mice. In addition, an increased number of tartrate-resistant acid phosphatase-positive multinucleated cells were observed at the ligated sites in STZ mice. CONCLUSIONS These results suggest that an imbalance of bone metabolism causes osteoclastosis in insulin-deficient diabetes, and that alveolar bone loss could occur at an early phase under this condition.
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Affiliation(s)
- S Maekawa
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - S Katagiri
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Y Takeuchi
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - R Komazaki
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - A Ohtsu
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - S Udagawa
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Y Izumi
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
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Nagai K, Yanagawa Y, Katagiri S, Nagano M. Fertilizability of oocytes derived from Holstein cows having different antral follicle counts in ovaries. Anim Reprod Sci 2015; 163:172-8. [PMID: 26588889 DOI: 10.1016/j.anireprosci.2015.11.009] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2015] [Revised: 11/02/2015] [Accepted: 11/03/2015] [Indexed: 11/27/2022]
Abstract
In this study, to clarify the relationship between ovarian reserve and oocyte quality, cumulus-oocyte complexes (COCs) were collected repeatedly by ovum pick-up (OPU) from cows with high and low antral follicle counts (AFCs) at short (3-4 days) and long (7 days) intervals, and COC morphologies and oocyte fertilizability were examined. The relationship between AFC and follicular growth after OPU was also investigated. Cows showing AFC of ≥30 in at least one OPU session were grouped into the high-AFC group. At a short interval, follicular sizes and COC morphologies were similar between the different AFC groups. However, the normal fertilization rate was higher in the high-AFC group than in the low one, although total penetration rates were similar. At a long interval, the percentage of COCs with poor morphology in the high-AFC group was higher and the normal fertilization rate was lower than in the low one. In the low-AFC group, normal fertilization rates at short and long intervals were similar, and mean follicular size became larger at a long than at a short interval. However, mean follicular sizes at short- and long-interval OPU were similar in the high-AFC group. In conclusion, it is suggested that oocytes derived from cows with high AFC had higher fertilizability than those from cows with low AFC when OPUs were performed at a short (3-4 days) interval. However, oocyte quality in high-AFC cows was impaired by long-interval (7 days) OPU, possibly due to the degradation of follicles.
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Affiliation(s)
- Katsuhisa Nagai
- Laboratory of Theriogenology, Department of Veterinary Clinical Sciences, Graduate School of Veterinary Medicine, Hokkaido University, Sapporo 060-0818, Japan
| | - Yojiro Yanagawa
- Laboratory of Theriogenology, Department of Veterinary Clinical Sciences, Graduate School of Veterinary Medicine, Hokkaido University, Sapporo 060-0818, Japan
| | - Seiji Katagiri
- Laboratory of Theriogenology, Department of Veterinary Clinical Sciences, Graduate School of Veterinary Medicine, Hokkaido University, Sapporo 060-0818, Japan; Laboratory of Theriogenology, Department of Large Animal Clinical Sciences, School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu 069-8501, Japan
| | - Masashi Nagano
- Laboratory of Theriogenology, Department of Veterinary Clinical Sciences, Graduate School of Veterinary Medicine, Hokkaido University, Sapporo 060-0818, Japan.
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Yanagawa Y, Matsuura Y, Suzuki M, Saga SI, Okuyama H, Fukui D, Bando G, Nagano M, Katagiri S, Takahashi Y, Tsubota T. Accessory corpora lutea formation in pregnant Hokkaido sika deer (Cervus nippon yesoensis) investigated by examination of ovarian dynamics and steroid hormone concentrations. J Reprod Dev 2014; 61:61-6. [PMID: 25482110 PMCID: PMC4353723 DOI: 10.1262/jrd.2014-076] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Generally, sika deer conceive a single fetus, but approximately 80% of pregnant females have two corpora lutea (CLs). The function of the accessory CL (ACL) is unknown; moreover, the process of ACL formation is unclear, and understanding this is necessary to know its role. To elucidate the process of ACL formation, the ovarian dynamics of six adult Hokkaido sika deer females were examined ultrasonographically together with peripheral estradiol-17β and progesterone concentrations. ACLs formed in three females that conceived at the first estrus of the breeding season, but not in those females that conceived at the second estrus. After copulation, postconception ovulation of the dominant follicle of the first wave is induced by an increase in estradiol-17β, which leads to formation of an ACL. A relatively low concentration of progesterone after the first estrus of the breeding season is considered to be responsible for the increase in estradiol-17β after copulation.
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Affiliation(s)
- Yojiro Yanagawa
- Laboratory of Theriogenology, Graduate School of Veterinary Medicine, Hokkaido University, Hokkaido 060-0818, Japan
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Tulake K, Yanagawa Y, Takahashi Y, Katagiri S, Higaki S, Koyama K, Wang X, Li H. Effects of ovarian storage condition on in vitro maturation of Hokkaido sika deer (Cervus nippon yesoensis) oocytes. Jpn J Vet Res 2014; 62:187-192. [PMID: 25597189] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
The effects of different preservation conditions (temperature 20-25 or 10-15 degrees C; duration 12 or 24 h) for ovaries of Cervus nippon yesoensis on in vitro maturation of oocytes were examined. When ovaries were kept for 12 h at 20-25 degrees C, maturation rate of oocytes was highest (71%); however, it declined when the preservation time was extended to 24 h (31%). When the preservation temperature decreased to 10-15 degrees C, the maturation rate after 12 h preservation decreased (51%) but it remained in same level even though preservation time is prolonged to 24 h (55%).
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Katagiri S, Moriyoshi M. Alteration of the endometrial EGF profile as a potential mechanism connecting the alterations in the ovarian steroid hormone profile to embryonic loss in repeat breeders and high-producing cows. J Reprod Dev 2014; 59:415-20. [PMID: 24162805 PMCID: PMC3934115 DOI: 10.1262/jrd.2013-048] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Poor reproductive efficiency is a worldwide problem that has affected the dairy industry
during the last several decades. In an attempt to explain the changes in reproductive
physiology caused by high milk production, a model of elevated steroid metabolism in
lactating dairy cows has been proposed. A slow increase in levels and low peak levels of
estradiol (E2) and progesterone (P4) characterize endocrine changes
in high producing cows. Similar changes have been reported in the repeat breeder cows. The
abnormal changes in E2 and P4 concentrations of these cows may cause
an improper uterine environment due to disturbed expression of growth factors and
cytokines in the endometrium. This review focuses on the alteration in epidermal growth
factor (EGF) profile in the endometrium during the estrous cycle. The normal cow has two
peaks of EGF concentrations on days 2–4 and 13–14. Low concentrations of EGF on these days
distinguished both high-producing and repeat breeder cows from normal cows. Alteration of
the EGF profile could be found in 70 and 40% of the repeat breeder and high-producing
cows, respectively. Treatment with a high dose of estradiol benzoate and an intravaginal
progesterone-releasing device restored the normal EGF profile in about 70% of the affected
cows. The cows having a normal EGF profile after treatment showed a higher pregnancy rate
than the cows with the altered profile. Further studies to understand the etiology of the
alteration in the EGF profile are needed to develop another treatment option and
preventive management for this problem.
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Affiliation(s)
- Seiji Katagiri
- Laboratory of Theriogenology, Department of Large Animal Clinical Sciences, School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu 069-8501, Japan
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Gotoh M, Yoshizawa S, Katagiri S, Suguro T, Asano M, Kitahara T, Akahane D, Okabe S, Tauchi T, Ito Y, Ohyashiki K. Human herpesvirus 6 reactivation on the 30th day after allogeneic hematopoietic stem cell transplantation can predict grade 2-4 acute graft-versus-host disease. Transpl Infect Dis 2014; 16:440-9. [DOI: 10.1111/tid.12229] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2013] [Revised: 12/04/2013] [Accepted: 01/30/2014] [Indexed: 11/30/2022]
Affiliation(s)
- M. Gotoh
- First Department of Internal Medicine; Tokyo Medical University; Tokyo Japan
| | - S. Yoshizawa
- First Department of Internal Medicine; Tokyo Medical University; Tokyo Japan
| | - S. Katagiri
- First Department of Internal Medicine; Tokyo Medical University; Tokyo Japan
| | - T. Suguro
- First Department of Internal Medicine; Tokyo Medical University; Tokyo Japan
| | - M. Asano
- First Department of Internal Medicine; Tokyo Medical University; Tokyo Japan
| | - T. Kitahara
- First Department of Internal Medicine; Tokyo Medical University; Tokyo Japan
| | - D. Akahane
- First Department of Internal Medicine; Tokyo Medical University; Tokyo Japan
| | - S. Okabe
- First Department of Internal Medicine; Tokyo Medical University; Tokyo Japan
| | - T. Tauchi
- First Department of Internal Medicine; Tokyo Medical University; Tokyo Japan
| | - Y. Ito
- First Department of Internal Medicine; Tokyo Medical University; Tokyo Japan
| | - K. Ohyashiki
- First Department of Internal Medicine; Tokyo Medical University; Tokyo Japan
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Mizutani K, Park K, Mima A, Katagiri S, King GL. Obesity-associated Gingival Vascular Inflammation and Insulin Resistance. J Dent Res 2014; 93:596-601. [PMID: 24744283 DOI: 10.1177/0022034514532102] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2013] [Accepted: 03/26/2014] [Indexed: 11/15/2022] Open
Abstract
Obesity is a risk factor for periodontitis, but the pathogenic mechanism involved is unclear. We studied the effects of insulin in periodontal tissues during the state of obesity-induced insulin resistance. Gingival samples were collected from fatty (ZF) and lean (ZL, control) Zucker rats. Endothelial nitric oxide synthase (eNOS) expression was decreased, and activities of protein kinase C (PKC) α, ß2, δ, and ϵ isoforms were significantly increased in the gingiva from ZF rats compared with those from ZL rats. Expression of oxidative stress markers (mRNA) and the p65 subunit of NF-κB was significantly increased in ZF rats. Immunohistochemistry revealed that NF-κB activation was also increased in the gingival endothelial cells from transgenic mice overexpressing NF-κB-dependent enhanced green fluorescent protein (GFP) and on a high-fat vs. normal chow diet. Analysis of the gingiva showed that insulin-induced phosphorylation of IRS-1, Akt, and eNOS was significantly decreased in ZF rats, but Erk1/2 activation was not affected. General PKC inhibitor and an anti-oxidant normalized the action of insulin on Akt and eNOS activation in the gingiva from ZF rats. This provided the first documentation of obesity-induced insulin resistance in the gingiva. Analysis of our data suggested that PKC activation and oxidative stress may selectively inhibit insulin-induced Akt and eNOS activation, causing endothelial dysfunction and inflammation.
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Affiliation(s)
- K Mizutani
- Vascular Cell Biology, Joslin Diabetes Center, Harvard Medical School, Boston, MA, USA Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - K Park
- Vascular Cell Biology, Joslin Diabetes Center, Harvard Medical School, Boston, MA, USA
| | - A Mima
- Vascular Cell Biology, Joslin Diabetes Center, Harvard Medical School, Boston, MA, USA Department of Nephrology and Hematology, Nara Hospital, Kinki University Faculty of Medicine, Osaka, Japan
| | - S Katagiri
- Vascular Cell Biology, Joslin Diabetes Center, Harvard Medical School, Boston, MA, USA
| | - G L King
- Vascular Cell Biology, Joslin Diabetes Center, Harvard Medical School, Boston, MA, USA
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