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  1. Article ; Online: The utility of human two plus one small pronucleated zygotes (2.1PN) based on clinical outcomes and the focused ploidy analysis.

    Hattori, Hiromitsu / Okuyama, Noriyuki / Ashikawa, Kyota / Sakuraba, Yoshiyuki / Igarashi, Hideki / Kyono, Koichi

    Journal of assisted reproduction and genetics

    2024  

    Abstract: Purpose: Are human embryos arising from two plus one small pronucleated zygotes, called 2.1 pronuclei (PN), clinically useful?: Methods: In a retrospective embryo cohort study and prospective experimental study, a total of 287 cycles in which at ... ...

    Abstract Purpose: Are human embryos arising from two plus one small pronucleated zygotes, called 2.1 pronuclei (PN), clinically useful?
    Methods: In a retrospective embryo cohort study and prospective experimental study, a total of 287 cycles in which at least one 2.1PN was identified in the fertilization check were included. Embryonic development and clinical outcome were compared for the 1395 2PN zygotes and 304 2.1PN zygotes that were siblings. All embryos were individually cultured in time-lapse systems. Twenty-five 2.1PN-derived blastocysts, donated for research, were used in focused single-nucleotide variant ploidy analysis to identify the distribution pattern of heterozygosity.
    Results: The average diameter of PN was 24.9 ± 2.4 µm for large PN and 10.2 ± 2.4 µm for small PN; 79.9% of small PN was derived from female pronuclei. Blastocyst formation rate and good-quality blastocyst rate were significantly lower with 2.1PN embryos than with 2PN embryos (40.0% vs. 57.7%, 21.4% vs. 33.5%, respectively). A total of 13 embryos derived from 2.1PN were transferred, and three healthy babies were born. In ploidy constitutions of trophectoderm (TE), 2.1PN-derived blastocyst TE was shown to be mostly diploid (95.8%, 23/24), and only one blastocyst showed triploid.
    Conclusions: It was suggested that 2.1PN embryos have lower embryonic developmental potential than 2PN embryos, but most of the 2.1PN were diploid, indicating that they are likely to be clinically usable. It is recommended to perform embryo transfer following a combination of PGT-A and ploidy analysis.
    Language English
    Publishing date 2024-04-13
    Publishing country Netherlands
    Document type Journal Article
    ZDB-ID 1112577-9
    ISSN 1573-7330 ; 1058-0468
    ISSN (online) 1573-7330
    ISSN 1058-0468
    DOI 10.1007/s10815-024-03114-9
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article: Chlormadinone acetate in progestin-primed ovarian stimulation does not negatively affect clinical results.

    Shibasaki, Sena / Hattori, Hiromitsu / Koizumi, Masae / Nagaura, Satoko / Toya, Mayumi / Igarashi, Hideki / Kyono, Koichi

    Reproductive medicine and biology

    2023  Volume 22, Issue 1, Page(s) e12519

    Abstract: Purpose: To investigate whether progestin-primed ovarian stimulation (PPOS) with chlormadinone acetate (CMA) adversely affects clinical results and neonatal outcomes, or causes congenital deformities.: Methods: This retrospective study was conducted ... ...

    Abstract Purpose: To investigate whether progestin-primed ovarian stimulation (PPOS) with chlormadinone acetate (CMA) adversely affects clinical results and neonatal outcomes, or causes congenital deformities.
    Methods: This retrospective study was conducted at private IVF clinic from November 2018 to November 2021. Women underwent oocyte retrieval using gonadotropin-releasing hormone (GnRH) antagonist protocol (
    Results: Patient characteristics were similar in both groups. The median LH level (mIU/mL) at trigger in the GnRH antagonist group [2.0 (1.2-3.7)] was significantly higher than in the PPOS group [0.9 (0.3-1.7)]. There was no cycle with premature LH surge in the PPOS group. Fertilization and blastocyst formation rates did not differ significantly between groups. Furthermore, clinical outcomes were also similar in the two groups. Congenital abnormality rates did not differ significantly [0.9% (3/329), 0.0% (0/17)].
    Conclusions: CMA using ovarian stimulation did not negatively affect clinical results. Our data suggest that PPOS with CMA is an appropriate ovarian stimulation method for normal ovarian responders.
    Language English
    Publishing date 2023-05-31
    Publishing country Japan
    Document type Journal Article
    ZDB-ID 2185775-1
    ISSN 1447-0578 ; 1445-5781
    ISSN (online) 1447-0578
    ISSN 1445-5781
    DOI 10.1002/rmb2.12519
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article: Duplication of the appendix masquerading as appendiceal tumor: a case report.

    Shibata, Jumpei / Tomida, Akihiro / Hattori, Masaoki / Hirata, Akihiro / Imataki, Hiromitsu / Orihara, Yukiya / Shintomi, Hideharu / Aono, Keiya / Yoshihara, Motoi

    Surgical case reports

    2023  Volume 9, Issue 1, Page(s) 190

    Abstract: Background: This case report highlights the exceptional rarity of appendix duplication in adults, a condition that closely mimics appendiceal tumors, posing diagnostic challenges. The novelty of this case lies in its presentation of a Type A duplication, ...

    Abstract Background: This case report highlights the exceptional rarity of appendix duplication in adults, a condition that closely mimics appendiceal tumors, posing diagnostic challenges. The novelty of this case lies in its presentation of a Type A duplication, emphasizing the diagnostic intricacies involved in distinguishing it from other pathologies.
    Case presentation: We present the case of a 69-year-old male with a history of hypertension, hyperuricemia, and duodenal gastric ulcer, who presented with a positive occult blood test. Lower gastrointestinal endoscopy revealed an appendiceal orifice with atypical hyperemia and edema. Subsequent imaging and biopsy results suggested an appendiceal tumor, prompting laparoscopic ileocecal resection. Intraoperative findings revealed an unremarkable appendix, but histopathological analysis unveiled appendiceal duplication, characterized by bifurcation into two lumens within a thick serosal wall. The patient was discharged without complications.
    Conclusions: This case underscores the importance of recognizing appendix duplication as a rare differential diagnosis for appendiceal tumors. Surgeons should remain vigilant, especially in cases of Type A duplication, where preoperative diagnosis remains challenging. Early identification can avert potential complications and missed congenital anomalies.
    Language English
    Publishing date 2023-10-30
    Publishing country Germany
    Document type Journal Article
    ZDB-ID 2809613-7
    ISSN 2198-7793
    ISSN 2198-7793
    DOI 10.1186/s40792-023-01769-7
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Book ; Online: Generation of Traffic Flows in Multi-Agent Traffic Simulation with Agent Behavior Model based on Deep Reinforcement Learning

    Zhong, Junjie / Hattori, Hiromitsu

    2020  

    Abstract: In multi-agent based traffic simulation, agents are always supposed to move following existing instructions, and mechanically and unnaturally imitate human behavior. The human drivers perform acceleration or deceleration irregularly all the time, which ... ...

    Abstract In multi-agent based traffic simulation, agents are always supposed to move following existing instructions, and mechanically and unnaturally imitate human behavior. The human drivers perform acceleration or deceleration irregularly all the time, which seems unnecessary in some conditions. For letting agents in traffic simulation behave more like humans and recognize other agents' behavior in complex conditions, we propose a unified mechanism for agents learn to decide various accelerations by using deep reinforcement learning based on a combination of regenerated visual images revealing some notable features, and numerical vectors containing some important data such as instantaneous speed. By handling batches of sequential data, agents are enabled to recognize surrounding agents' behavior and decide their own acceleration. In addition, we can generate a traffic flow behaving diversely to simulate the real traffic flow by using an architecture of fully decentralized training and fully centralized execution without violating Markov assumptions.

    Comment: "For associated source code, see https://github.com/ZHONGJunjie86"
    Keywords Computer Science - Multiagent Systems ; Electrical Engineering and Systems Science - Systems and Control
    Subject code 006 ; 004
    Publishing date 2020-12-26
    Publishing country us
    Document type Book ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  5. Article: Micromapping testicular sperm extraction: A new technique for microscopic testicular sperm extraction in nonobstructive azoospermia.

    Tai, Toshihiro / Miyamoto, Wakaba / Fukuoka, Yuriko / Shibasaki, Sena / Takahashi, Mizuho / Okuyama, Noriyuki / Hattori, Hiromitsu / Ishikawa, Ikue / Nagaura, Satoko / Yoshinaga, Koki / Koizumi, Masae / Hashimoto, Tomoko / Toya, Mayumi / Kumagai, Jin / Igarashi, Hideki / Kyono, Koichi

    Reproductive medicine and biology

    2024  Volume 23, Issue 1, Page(s) e12566

    Abstract: Purpose: In microscopic testicular sperm extraction (mTESE) for nonobstructive azoospermia (NOA), sperm can be recovered relatively easily in some cases, and mTESE may be retrospectively considered excessive. However, mTESE is routinely performed in the ...

    Abstract Purpose: In microscopic testicular sperm extraction (mTESE) for nonobstructive azoospermia (NOA), sperm can be recovered relatively easily in some cases, and mTESE may be retrospectively considered excessive. However, mTESE is routinely performed in the majority of NOA patients because of the difficulty in predicting tissue status. A minimally invasive and comprehensive sperm retrieval method that allows on-the-spot tissue assessment is needed. We have developed and evaluated a novel sperm retrieval technique for NOA called micromapping testicular sperm extraction (MMTSE).
    Methods: MMTSE involves dividing the testis into four sections and making multiple small needle holes in the tunica albuginea to extract seminiferous tubules and retrieve sperm. The sperm-positive group by MMTSE (Group I) underwent additional tissue collection (ATC) via a small incision, whereas the sperm-negative group by MMTSE (Group 0) underwent mTESE.
    Results: In total, 40 NOA participants underwent MMTSE. Group I included 15 patients and Group 0 included 25 patients. In Group 1, sperm were recovered from all patients by ATC. In Group 0, sperm were recovered in 4 of 25 cases using mTESE.
    Conclusions: MMTSE shows promise as a simple method that comprehensively searches testicular tissue and retrieves sperm using an appropriate method while minimizing patient burden.
    Language English
    Publishing date 2024-03-11
    Publishing country Japan
    Document type Journal Article
    ZDB-ID 2185775-1
    ISSN 1447-0578 ; 1445-5781
    ISSN (online) 1447-0578
    ISSN 1445-5781
    DOI 10.1002/rmb2.12566
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: G‑CSF delays tooth extraction socket bone healing via the inhibition of bone turnover in mice.

    Oshitani, Masayuki / Takaoka, Kazuki / Ueta, Miho / Tomimoto, Kohei / Hattori, Hirokazu / Yoneda, Naomichi / Yamanegi, Koji / Noguchi, Kazuma / Kishimoto, Hiromitsu

    Experimental and therapeutic medicine

    2023  Volume 25, Issue 3, Page(s) 104

    Abstract: Granulocyte colony-stimulating factor (G-CSF) regulates the survival, proliferation and differentiation of all cells in the neutrophil lineage, and is consequently used for neutropenic conditions. Upon G-CSF administration, osteoblasts and osteocytes are ...

    Abstract Granulocyte colony-stimulating factor (G-CSF) regulates the survival, proliferation and differentiation of all cells in the neutrophil lineage, and is consequently used for neutropenic conditions. Upon G-CSF administration, osteoblasts and osteocytes are suppressed, and the support system allowing hematopoietic stem cells to remain in the microenvironment is diminished. The present study focused on and investigated G-CSF as a regulatory factor of bone remodeling. The aim of the present study was to investigate the effect of G-CSF administration on the bone healing of tooth extraction sockets. Significant differences in the bone volume fraction, and trabecular separation of the proximal femurs and alveolar septa were observed between the G-CSF and control (saline-treated) groups. The trabecular bone of the femur and alveolar septa was reduced in the G-CSF group compared with that in the control group. In addition, serum procollagen type 1 N-terminal propeptide levels, a marker of bone formation, were lower in the G-CSF group compared with in the control group. Fibrous connective tissues and immature bone were observed in the extraction socket, and bone healing was delayed in the G-CSF group compared with that in the control group. The bone area in the extraction socket 6 days after tooth extraction was significantly smaller in the G-CSF group (23.6%) than that in the control group (45.1%). Furthermore, G-CSF administration reduced the number of canaliculi per osteocyte and inhibited the connection of osteocyte networks. Consequently, osteoblast activation was inhibited and bone remodeling changed to a state of low bone turnover in the G-CSG group. Analysis of bone formation parameters revealed that the G-CSF group exhibited a lower mineral apposition rate compared with in the control group. In conclusion, these findings indicated that G-CSF may delay bone healing of the socket after tooth extraction.
    Language English
    Publishing date 2023-01-20
    Publishing country Greece
    Document type Journal Article
    ZDB-ID 2683844-8
    ISSN 1792-1015 ; 1792-0981
    ISSN (online) 1792-1015
    ISSN 1792-0981
    DOI 10.3892/etm.2023.11803
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: Lobectomy versus proton therapy for stage I non-small cell lung cancer.

    Sakane, Tadashi / Nakajima, Koichiro / Iwata, Hiromitsu / Nakano, Tomoharu / Hagui, Emi / Oguri, Masanosuke / Nomura, Kento / Hattori, Yukiko / Ogino, Hiroyuki / Haneda, Hiroshi

    The Journal of thoracic and cardiovascular surgery

    2023  Volume 166, Issue 6, Page(s) 1490–1501.e2

    Abstract: Objective: Lobectomy is the standard treatment for patients with early-stage non-small cell lung cancer (NSCLC). In recent years, an increasing number of patients with lung cancer have been treated using proton therapy (PT). We conducted a propensity ... ...

    Abstract Objective: Lobectomy is the standard treatment for patients with early-stage non-small cell lung cancer (NSCLC). In recent years, an increasing number of patients with lung cancer have been treated using proton therapy (PT). We conducted a propensity score-matched analysis to compare the treatment outcomes of these 2 modalities.
    Methods: We retrospectively reviewed data from 275 patients with histologically confirmed clinical stage I NSCLC who underwent lobectomy (n = 206) or PT (n = 69) at our institution from July 2013 to December 2020. The end points were overall survival (OS), cause-specific survival, recurrence-free survival (RFS), local control, regional lymph node control, and distant control. Propensity score matching was performed to reduce selection bias in the 2 groups.
    Results: The matched cohort consisted of 59 patients who underwent lobectomy and 59 patients who underwent PT with a median follow-up period of 50 months. There were no significant differences in OS (P = .26), cause-specific survival (P = .33), RFS (P = .53), local control (P = .41), regional lymph node control (P = .98), and distant control (P = .31). In the lobectomy and PT groups, the 5-year OS rate was 85.8% and 79.1%, respectively, the RFS rate was 82.3% and 77.8%, and the local control rate was 92.1% and 96.6%.
    Conclusions: We found no difference in survival or disease control between lobectomy and PT in patients with histologically confirmed clinical stage I NSCLC. Despite these findings, the potential for unmeasured confounding factors remains, and randomized control trials are needed to better compare these treatment modalities.
    MeSH term(s) Humans ; Carcinoma, Non-Small-Cell Lung/radiotherapy ; Carcinoma, Non-Small-Cell Lung/surgery ; Lung Neoplasms/pathology ; Lung Neoplasms/radiotherapy ; Lung Neoplasms/surgery ; Neoplasm Staging ; Pneumonectomy ; Proton Therapy ; Retrospective Studies
    Language English
    Publishing date 2023-08-23
    Publishing country United States
    Document type Journal Article
    ZDB-ID 3104-5
    ISSN 1097-685X ; 0022-5223
    ISSN (online) 1097-685X
    ISSN 0022-5223
    DOI 10.1016/j.jtcvs.2023.08.030
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article ; Online: Long-term survival outcomes and quality of life of image-guided proton therapy for operable stage I non-small cell lung cancer: A phase 2 study.

    Nakajima, Koichiro / Oguri, Masanosuke / Iwata, Hiromitsu / Hattori, Yukiko / Hashimoto, Shingo / Nomura, Kento / Hayashi, Kensuke / Toshito, Toshiyuki / Akita, Kenji / Baba, Fumiya / Ogino, Hiroyuki / Hiwatashi, Akio

    Radiotherapy and oncology : journal of the European Society for Therapeutic Radiology and Oncology

    2024  Volume 196, Page(s) 110276

    Abstract: Background and purpose: This study evaluated long-term efficacy, safety, and changes in quality of life (QOL) of patients after image-guided proton therapy (IGPT) for operable stage I non-small cell lung cancer (NSCLC).: Materials and methods: This ... ...

    Abstract Background and purpose: This study evaluated long-term efficacy, safety, and changes in quality of life (QOL) of patients after image-guided proton therapy (IGPT) for operable stage I non-small cell lung cancer (NSCLC).
    Materials and methods: This single-institutional prospective phase 2 study enrolled patients with operable histologically confirmed stage IA or IB NSCLC (7th edition of UICC). The prescribed dose was 66 Gy relative biological effectiveness equivalents (GyRBE) in 10 fractions for peripheral lesions, or 72.6 GyRBE in 22 fractions for central lesions. The primary endpoint was the 3-year overall survival (OS). The secondary endpoints included disease control, toxicity, and changes in QOL score.
    Results: We enrolled 43 patients (median age: 68 years; range, 47-79 years) between July 2013 to January 2021, of whom 41 (95 %) had peripheral lesions and 27 (63 %) were stage IA. OS, local control, and progression-free survival rates were 95 % (95 % CI: 83-99), 95 % (82-99), and 86 % (72-94), respectively, at 3 years, and 83 % (66-92), 95 % (82-99), and 77 % (60-88), respectively, at 7 years. Four patients (9 %) developed grade 2, and one patient (2 %) developed grade 3 radiation pneumonitis. No other grade 3 or higher adverse events were observed. In the QOL analysis, global QOL remained favorable; however, approximately 40 % of patients reported dyspnea at 3 and 24 months.
    Conclusion: Our findings suggest that IGPT provides effective disease control and survival in operable stage I NSCLC, particularly for peripheral lesions. Moreover, toxicity associated with IGPT was minimal, and patients reported favorable QOL.
    Language English
    Publishing date 2024-04-12
    Publishing country Ireland
    Document type Journal Article
    ZDB-ID 605646-5
    ISSN 1879-0887 ; 0167-8140
    ISSN (online) 1879-0887
    ISSN 0167-8140
    DOI 10.1016/j.radonc.2024.110276
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article: Patient-Reported Quality of Life Outcomes after Moderately Hypofractionated and Normofractionated Proton Therapy for Localized Prostate Cancer.

    Nakajima, Koichiro / Iwata, Hiromitsu / Hattori, Yukiko / Nomura, Kento / Hayashi, Kensuke / Toshito, Toshiyuki / Umemoto, Yukihiro / Hashimoto, Shingo / Ogino, Hiroyuki / Shibamoto, Yuta

    Cancers

    2022  Volume 14, Issue 3

    Abstract: We retrospectively evaluated the three-year patient-reported quality of life (QOL) after moderately hypofractionated proton therapy (MHPT) for localized prostate cancer in comparison with that after normofractionated PT (NFPT) using the Expanded Prostate ...

    Abstract We retrospectively evaluated the three-year patient-reported quality of life (QOL) after moderately hypofractionated proton therapy (MHPT) for localized prostate cancer in comparison with that after normofractionated PT (NFPT) using the Expanded Prostate Cancer Index Composite-50. Patients who received MHPT (60-63 Gy (relative biological effectiveness equivalents; RBE)/20-21 fractions) (
    Language English
    Publishing date 2022-01-20
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2527080-1
    ISSN 2072-6694
    ISSN 2072-6694
    DOI 10.3390/cancers14030517
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article: The ectomycorrhizal fungus Tricholoma matsutake biosynthesizes benzoic acid and benzaldehyde independently

    Hattori, Takefumi / Hiromitsu Tsuzuki / Honoka Nakai / Chie Tanaka

    The Mycological Society of Japan Mycoscience. 2019 Jan., v. 60, no. 1

    2019  

    Abstract: Metabolism of benzoic acids and benzaldehydes are crucial to produce hormones, defense compounds and attractants for pollinators in plants. Tricholoma matsutake contains benzoic acid and benzaldehyde, but their roles have not been fully studied. First we ...

    Abstract Metabolism of benzoic acids and benzaldehydes are crucial to produce hormones, defense compounds and attractants for pollinators in plants. Tricholoma matsutake contains benzoic acid and benzaldehyde, but their roles have not been fully studied. First we conducted tracer experiments to gain insight into benzoic acid and benzaldehyde biosynthesis in T. matsutake. 13C and 2H were incorporated into benzoic acid from uniformly 13C- and 2H- labelled l-phenylalanine and (E)-cinnamate 1 d after supplementation of the precursors without any substitution of 13C and 2H. In contrast, no 13C and 2H were incorporated into benzaldehyde from these precursors 10 d after the supplementation. The results indicate that T. matsutake has a metabolic pathway to biosynthesize benzoic acid from l-phenylalanine and (E)-cinnamate in which benzaldehyde is not a metabolic intermediate. However, 30 d after the supplementation of 13C- and 2H- labelled l-phenylalanine, 13C and 2H were incorporated into all the carbon and hydrogen atoms of benzaldehyde. In addition, 2H was not incorporated into benzaldehyde from exogenously supplemented 2H-labelled benzoic acid. This result indicates that T. matsutake has a metabolic pathway to biosynthesize benzaldehyde from l-phenylalanine in which benzoic acid is not an intermediate. Taken together, our results strongly suggest that T. matsutake biosynthesizes benzoic acid and benzaldehyde in separate pathways.
    Keywords Tricholoma matsutake ; attractants ; benzaldehyde ; benzoic acid ; biochemical pathways ; biosynthesis ; carbon ; deuterium ; hormones ; isotope labeling ; mycorrhizal fungi ; phenylalanine ; pollinators ; stable isotopes
    Language English
    Dates of publication 2019-01
    Size p. 54-62.
    Publishing place Elsevier B.V.
    Document type Article
    ZDB-ID 1285813-4
    ISSN 1618-2545 ; 1340-3540
    ISSN (online) 1618-2545
    ISSN 1340-3540
    DOI 10.1016/j.myc.2018.09.001
    Database NAL-Catalogue (AGRICOLA)

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