Percentage of motile spermatozoa at 22 hours after swim-up procedure: An indicator for intracytoplasmic sperm injection?

Inoue, Taketo,Yonezawa, Yukiko,Sugimoto, Hironobu,Uemura, Mikiko,Ono, Yuri,Kishi, Junji,Emi, Nobuyuki,Ono, Yoshiyuki The Korean Society for Reproductive Medicine 2016 Clinical and Experimental Reproductive Medicine Vol.43 No.3

Objective: The decision to use in vitro fertilization (IVF), intracytoplasmic sperm injection (ICSI), or split insemination (IVF-ICSI) in the first cycle is based on the number of motile sperm. Hence, total fertilization failure (TFF) often occurs during IVF cycles, despite normozoospermia. To investigate whether the cumulative motile swim-up spermatozoa percentage at 22 hours post-insemination (MSPPI) is an indicator for ICSI, we analyzed TFF, fertilization, blastocyst development, chemical pregnancy, clinical pregnancy, and live birth rates. Methods: This prospective study was performed using data obtained from 260 IVF cycles. At 22 hours after insemination, the remaining swim-up spermatozoa were observed and divided into six groups according to MSPPI (<10%, 10% to <30%, 30% to <50%, 50% to <70%, 70% to <90%, and 90% to 100%). Results: Regardless of the ejaculated motile sperm concentration ($0.6-280{\times}10^6/mL$ motile spermatozoa), the incidence of TFF significantly increased when MSPPI was <10%, and the fertilization rate significantly decreased when MSPPI was <30%. We found that cumulative MSPPI correlated with the cumulative fertilization rate (Spearman correlation, 0.508, p<0.001). Regarding embryo development, we observed no significant differences in the rates of blastocyst development, chemical pregnancy, clinical pregnancy, or live birth among all groups. Conclusion: Our findings suggest that MSPPI is a viable indicator for split IVF-ICSI and ICSI. Taken together, by employing the MSPPI test in advance before IVF, ICSI, or split IVF-ICSI cycles, unnecessary split IVF-ICSI and ICSI may be avoided.

EFFECT OF RATIO OF CONCENTRATE TO ROUGHAGE ON THE RUMEN DEGRADABILITY OF CRUDE PROTEIN IN ITALIAN RYEGRASS AND CUBED ALFALFA HAYS

Inoue, Y.,Nishida, R.,Morita, Z.,Oura, R.,Sekine, J. Asian Australasian Association of Animal Productio 1989 Animal Bioscience Vol.2 No.3

Analgesic Effects of Toad Cake and Toad-cake-containing Herbal Drugs -Analgesic effects of toad cake-

Inoue, Eiji,Shimizu, Yasuharu,Masui, Ryo,Usui, Tomomi,Sudoh, Keiichi KOREAN PHARMACOPUNCTURE INSTITUTE 2014 Journal of pharmacopuncture Vol.17 No.1

Objectives: This study was conducted to clarify the analgesic effect of toad cake and toad-cake-containing herbal drugs. Methods: We counted the writhing response of mice after the intraperitoneal administration of acetic acid as a nociceptive pain model and the withdrawal response after the plantar surface stimulation of the hind paw induced by partial sciatic nerve ligation of the mice as a neuropathic pain model to investigate the analgesic effect of toad cake and toad-cake-containing herbal drugs. A co-treatment study with serotonin biosynthesis inhibitory drug 4-chloro-DL-phenylalanine methyl ester hydrochloride (PCPA), the catecholamine biosynthesis inhibitory drug ${\alpha}$-methyl-DL-tyrosine methyl ester hydrochloride (AMPT) or the opioid receptor antagonist naloxone hydrochloride was also conducted. Results: Analgesic effects in a mouse model of nociceptive pain and neuropathic pain were shown by oral administration of toad cake and toad-cake-containing herbal drugs. The effects of toad cake and toad-cake-containing herbal drugs disappeared upon co-treatment with PCPA, but not with AMPT or naloxone in the nociceptive pain model; the analgesic effect of toad-cake-containing herbal drugs also disappeared upon co-treatment with PCPA in the neuropathic pain model. Conclusion: Toad cake and toad-cake-containing herbal drugs have potential for the treatments of nociceptive pain and of neuropathic pain, such as post-herpetic neuralgia, trigeminal neuralgia, diabetic neuralgia, and postoperative or posttraumatic pain, by activation of the central serotonin nervous system.

Improved 3D integral imaging reconstruction with elemental image pixel rearrangement

Inoue, Kotaro,Lee, Min-Chul,Javidi, Bahram,Cho, Myungjin IOP 2018 Journal of optics Vol.20 No.2

<P>Computational reconstruction of integral imaging requires much more computational loads than optical reconstruction because of the adding and averaging of many elemental images digitally. Thus, to reduce the computational loads, the pixels of elemental images rearrangement technique (PERT) has been proposed. It can reconstruct a three-dimensional (3D) image very fast, but the size of the reconstructed 3D image is different from the conventional computational reconstruction due to no consideration of the empty space between pixels on the reconstruction plane. Therefore, in this paper, we propose PERT considering the projected empty space to correct the size of the reconstructed 3D images. To verify and support our proposed method, we carry out preliminary experiments and calculate the structural similarity index.</P>

Changes of Serum Mineral Concentrations in Horses during Exercise

Inoue, Y.,Osawa, T.,Matsui, A.,Asai, Y.,Murakami, Y.,Matsui, T.,Yano, H. Asian Australasian Association of Animal Productio 2002 Animal Bioscience Vol.15 No.4

We investigated the exercise-induced changes in the serum concentration of several minerals in horses. Four welltrained Thoroughbred horses performed exercise for 5 d. The blood hemoglobin (Hb) concentration increased during exercise, recovered to the pre-exercise level immediately after cooling down and did not change again up till the end of experiment. The changes in serum zinc (Zn) and copper (Cu) concentrations were similar to those of blood Hb during the experiment. The serum magnesium (Mg), inorganic phosphorus (Pi) and iron (Fe) concentrations also increased during exercise. Though the serum Pi concentration recovered to the pre-exercise level immediately after the cooling down, it decreased further before the end of the experiment. The serum Mg concentration was lower immediately after cooling down than its pre-exercise level but gradually recovered from the temporal reduction. The recovery of the serum Fe concentration was delayed compared to that of other minerals and recovered 2 h after cooling down. The serum calcium (Ca) concentration did not change during exercise but rapidly decreased after cooling down. As a result, it was lower immediately after cooling down than its pre-exercise level. It recovered, however, to the pre-exercise level 2 h after cooling down. The temporal increase in the serum concentrations of all minerals except Ca is considered to result from hemoconcentration induced by exercise and the stable concentration of the serum Ca during exercise is possibly due to its strict regulation of homeostasis. These results indicate that the serum concentration of each mineral responds differently to exercise in horses, which may be due to the difference in metabolism among these minerals.

Carbonyl cyanide-4-(trifluoromethoxy)phenylhydrazone-induced toxicities in rats: comparative study with other mitochondrial uncouplers (2,4-dinitrophenol, OPC-163493 and tolcapone)

Inoue Yuki,Wada Yuko,Sato Makoto,Sato Seiji,Okamoto Takashi,Kanemoto Naohide 한국독성학회 2023 Toxicological Research Vol.39 No.4

FCCP (carbonyl cyanide-4-(trifluoromethoxy)phenylhydrazone) is known to inhibit oxidative phosphorylation as a protonophore, dissipating the proton gradient across the inner mitochondrial membrane. To understand the toxicity of FCCP, 3-day, 2- and 4-week repeated oral dose studies were performed in male rats. In the 3-day and 2-week repeated dose toxicity studies, observations included salivation, increased body temperature, and dead and moribund animals. Increased liver weight was observed in conjunction with hydropic degeneration and centrilobular necrosis of hepatocytes. In addition, pathological changes were observed in the pancreas, testis, epididymal duct, stomach and parotid gland. Electron microscopic examination revealed mitochondrial pleomorphism in the hepatocytes. Swelling of mitochondria was observed in the alpha cells and beta cells of the pancreas. Dilatation of rough endoplasmic reticulum, Golgi bodies and loss of secretory granules were also noted in the beta cells of the pancreas. FCCP was also compared with three other mUncouplers (DNP, OPC-163493 and tolcapone) with regard to in vitro mitochondrial uncoupling (mUncoupling) activities. FCCP produced the peak ΔOCR (oxygen consumption rate) at the lowest concentration (0.4 μM), followed by OPC-163493, tolcapone, and DNP, based on peak values in ascending order of concentration (2.5, 10, and 50 μM, respectively). Considering the relationship between the mUncoupling activity and toxicity profile of the four mUncouplers, there is no parallel relationship between the in vitro mUncoupling activity and the degree of in vivo toxicity. These findings may contribute to the efficient development of new mitochondrial uncoupler candidates.

Study of the planarian phototaxis during brain regeneration

Inoue, Takeshi,Kumamoto, Hiroshi,Cebria, Frances,Kobayashi, Chiyoko,Agata, Kiyokazu Korean Society of Photoscience 2002 Journal of Photosciences Vol.9 No.2

Planarians show negative phototaxis and have extensive regenerative ability, including the ability to regenerate the brain. Recently the process of regeneration of the planarian brain has been divided into three steps based on the expression of neural markers. In this study, we have analyzed the process of recovery of the light response during head regeneration. Although morphological observations indicated that regeneration of the eyes and optic nerves appeared to be completed by the fourth day, the recovery of the evasion behavior against light was not recovered within 4 days after amputation. Functional recovery of the evasion behavior could be detected starting 5 days after amputation and then gradually recovered. We previously identified genes which are specifically expressed in the brain after the recovery of morphological structures. This characteristic suggested that these genes may be involved in functional recovery of the brain. To investigate the function of these genes, we performed gene knockout analysis using the RNA interference method. The results clearly indicated that these genes are involved in the functional recovery of the visual system.

Gerontology and Assistive Technology Innovation

( Inoue Takenobu ) 한국감성과학회 2018 추계학술대회 Vol.2018 No.-

Status Aspirations and Gender Awareness of Women Undergraduates in Guam

Inoue, Yukiko Ewha Womans University Press 1999 Asian Journal of Women's Studies(AJWS) Vol.5 No.4

This study examines the status aspirations of undergraduate women in Guam; their awareness of gender equality in employment, and how these affect their academic and social aspirations. A random sample of 350 students, which represented the culturally diverse setting of the study, was thus selected from the degree and non-degree programs of the Arts and Science faculties of the University of Guam (UOG). A questionnaire was administered to the sample and had a response rate of 32 percent. The respondents revealed a strong desire for pursuing careers, earning for themselves, and they did not perceive gender discrimination as a significant impediment in employment. Furthermore, no differences in attitudes and perceptions were identified between the two major ethnic groups-Chamorro and non-Chamorro. This may be due to the manner in which Guam has evolved and the kind of interaction students of the UOG have among themselves on campus. Implications of the study are discussed and some questions for future research are posed.

Surgical Invasiveness of Single-Segment Posterior Lumbar Interbody Fusion: Comparing Perioperative Blood Loss in Posterior Lumbar Interbody Fusion with Traditional Pedicle Screws, Cortical Bone Trajectory Screws, and Percutaneous Pedicle Screws

Inoue Tetsuji,Mizutamari Masaya,Hatake Kuniaki 대한척추외과학회 2021 Asian Spine Journal Vol.15 No.6

Study Design: Single-center retrospective study. Purpose: This study aims to evaluate the surgical invasiveness of single-segment posterior lumbar interbody fusion (PLIF) by comparing perioperative blood loss in PLIF with traditional pedicle screws (PS), cortical bone trajectory screws (CBT), and percutaneous pedicle screws (PPS). Overview of Literature: Intraoperative blood loss has often been used to evaluate surgical invasiveness. However, in patients undergoing spinal surgery, more blood loss is observed postoperatively than intraoperatively. Therefore, evaluating surgical invasiveness using only the intraoperative bleeding volume may result in considerable underestimation of the actual surgical invasiveness. Methods: This study included patients who underwent single-segment PLIF between January 2012 and December 2017. In total, seven patients underwent PLIF with PS (PS-PLIF), nine underwent PLIF with CBT (CBT-PLIF), and 15 underwent PLIF with PPS (PPS-PLIF). Results: No significant differences were noted in terms of operation time or intraoperative bleeding between the PS-PLIF, CBTPLIF, and PPS-PLIF groups. However, the postoperative drainage volume in the PPS-PLIF group (210.1 mL; range, 50–367 mL) was determined to be significantly lower than that in the PS-PLIF (416.7 mL; range, 260–760 mL; p=0.002) and CBT-PLIF (421.1 mL; range, 180–890 mL; p=0.006) groups. In addition, the total amount of intraoperative bleeding and postoperative drainage was found to be significantly lower in the PPS-PLIF group (362.8 mL; range, 145–637 mL) than in the PS-PLIF (639.6 mL; range, 285–1,000 mL; p=0.01) and CBT-PLIF (606.7 mL; range, 270–950 mL; p=0.005) groups. Conclusions: Based on our findings, evaluating surgical invasiveness using only intraoperative bleeding can result in the underestimation of actual surgical invasiveness. Even with single-segment PLIF, the amount of perioperative bleeding can vary depending on the way the posterior instrument is installed.