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  1. Article: Development of a rice herbicide, fenquinotrione.

    Nagamatsu, Atsushi / Ueda, Ken / Tamai, Ryuji / Tani, Shinki / Yamamoto, Shunsuke

    Journal of pesticide science

    2022  Volume 47, Issue 3, Page(s) 139–145

    Abstract: Fenquinotrione is a novel rice herbicide that was discovered and developed by Kumiai Chemical Industry Co., Ltd. It can control a wide range of broadleaf and sedge weeds with excellent rice selectivity at 30 g a.i./10 a and is as effective as the wild ... ...

    Abstract Fenquinotrione is a novel rice herbicide that was discovered and developed by Kumiai Chemical Industry Co., Ltd. It can control a wide range of broadleaf and sedge weeds with excellent rice selectivity at 30 g a.i./10 a and is as effective as the wild type on acetolactate synthase inhibitor-resistant weeds. Our metabolic and molecular biological studies showed that CYP81A6-mediated demethylation and subsequent glucose conjugation are responsible for the safety of fenquinotrione in rice. Fenquinotrione was registered in Japan in 2018, and various products containing fenquinotrione have been launched. With its high efficacy and excellent rice selectivity, we believe that fenquinotrione will contribute to efficient food production in the future.
    Language English
    Publishing date 2022-11-02
    Publishing country Japan
    Document type Journal Article
    ZDB-ID 437867-2
    ISSN 1348-589X ; 2187-0365 ; 0916-9962 ; 0385-1559
    ISSN 1348-589X ; 2187-0365 ; 0916-9962 ; 0385-1559
    DOI 10.1584/jpestics.J22-02
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Cloverleaf technique to resolve diametric discrepancy in microsurgical anastomosis.

    Hamamoto, Yusuke / Yamashita, Ken / Tamai, Motoki / Nagasao, Tomohisa / Yotsuyanagi, Takatoshi

    Microsurgery

    2021  Volume 41, Issue 5, Page(s) 501–502

    MeSH term(s) Anastomosis, Surgical ; Humans ; Microsurgery
    Language English
    Publishing date 2021-04-03
    Publishing country United States
    Document type Letter
    ZDB-ID 605524-2
    ISSN 1098-2752 ; 0738-1085
    ISSN (online) 1098-2752
    ISSN 0738-1085
    DOI 10.1002/micr.30737
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  3. Article ; Online: Effects of anti-SSA antibodies on the response to methotrexate in rheumatoid arthritis: A retrospective multicenter observational study.

    Waki, Daisuke / Tamai, Hiroya / Yokochi, Ritsuko / Kido, Toshiki / Yagyu, Yuriko / Yanai, Ryo / Sada, Ken-Ei

    PloS one

    2022  Volume 17, Issue 7, Page(s) e0271921

    Abstract: Comparison of clinical response to methotrexate between anti-SSA antibody-positive and -negative patients with methotrexate-naïve rheumatoid arthritis and investigate the reasons for the differences in the response. For this multicenter retrospective ... ...

    Abstract Comparison of clinical response to methotrexate between anti-SSA antibody-positive and -negative patients with methotrexate-naïve rheumatoid arthritis and investigate the reasons for the differences in the response. For this multicenter retrospective cohort study, a total of 210 consecutive patients with rheumatoid arthritis who newly initiated methotrexate were recruited. The effects of anti-SSA antibody positivity on achieving a low disease activity according to the 28-joint Disease Activity Score based on C-reactive protein after 6 months of methotrexate administration were investigated using a logistic regression analysis. This study involved 32 and 178 anti-SSA antibody-positive and -negative patients, respectively. The rate of achieving low disease activity according to the 28-joint Disease Activity Score based on C-reactive protein at 6 months was significantly lower in the anti-SSA antibody-positive group than in the anti-SSA antibody-negative group (56.2% vs. 75.8%, P = 0.030). After 6 months, anti-SSA antibody-positive patients had significantly higher scores on the visual analogue scale (median [interquartile range]: 22 [15-41] vs. 19 [5-30], P = 0.038) and were frequently prescribed nonsteroidal anti-inflammatory drugs (37.5% vs. 18.0%, P = 0.018). In conclusion, the presence of anti-SSA antibodies might be a predictive factor for insufficient responses to treat-to-target strategy in rheumatoid arthritis. Residual pain might contribute to the reduced clinical response to methotrexate in anti-SSA antibody-positive patients with rheumatoid arthritis.
    MeSH term(s) Antirheumatic Agents/therapeutic use ; Arthritis, Rheumatoid/drug therapy ; C-Reactive Protein ; Humans ; Methotrexate/therapeutic use ; Retrospective Studies ; Treatment Outcome
    Chemical Substances Antirheumatic Agents ; C-Reactive Protein (9007-41-4) ; Methotrexate (YL5FZ2Y5U1)
    Language English
    Publishing date 2022-07-22
    Publishing country United States
    Document type Journal Article ; Multicenter Study ; Observational Study
    ZDB-ID 2267670-3
    ISSN 1932-6203 ; 1932-6203
    ISSN (online) 1932-6203
    ISSN 1932-6203
    DOI 10.1371/journal.pone.0271921
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  4. Article ; Online: Current topics in Epidermolysis bullosa: Pathophysiology and therapeutic challenges.

    Natsuga, Ken / Shinkuma, Satoru / Hsu, Chao-Kai / Fujita, Yasuyuki / Ishiko, Akira / Tamai, Katsuto / McGrath, John A

    Journal of dermatological science

    2021  Volume 104, Issue 3, Page(s) 164–176

    Abstract: Epidermolysis bullosa (EB) is a group of inherited skin and mucosal fragility disorders resulting from mutations in genes encoding basement membrane zone (BMZ) components or proteins that maintain the integrity of BMZ and adjacent keratinocytes. More ... ...

    Abstract Epidermolysis bullosa (EB) is a group of inherited skin and mucosal fragility disorders resulting from mutations in genes encoding basement membrane zone (BMZ) components or proteins that maintain the integrity of BMZ and adjacent keratinocytes. More than 30 years have passed since the first causative gene for EB was identified, and over 40 genes are now known to be responsible for the protean collection of mechanobullous diseases included under the umbrella term of EB. Through the elucidation of disease mechanisms using human skin samples, animal models, and cultured cells, we have now reached the stage of developing more effective therapeutics for EB. This review will initially focus on what is known about blister wound healing in EB, since recent and emerging basic science data are very relevant to clinical translation and therapeutic strategies for patients. We then place these studies in the context of the latest information on gene therapy, read-through therapy, and cell therapy that provide optimism for improved clinical management of people living with EB.
    MeSH term(s) Animals ; Blister ; Epidermolysis Bullosa/genetics ; Epidermolysis Bullosa/therapy ; Humans ; Keratinocytes ; Mutation ; Skin
    Language English
    Publishing date 2021-12-16
    Publishing country Netherlands
    Document type Journal Article ; Review
    ZDB-ID 1024446-3
    ISSN 1873-569X ; 0923-1811
    ISSN (online) 1873-569X
    ISSN 0923-1811
    DOI 10.1016/j.jdermsci.2021.11.004
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  5. Article: Circulating liver-specific microRNAs in cynomolgus monkeys.

    Iguchi, Takuma / Sakurai, Ken / Tamai, Satoshi / Mori, Kazuhiko

    Journal of toxicologic pathology

    2017  Volume 31, Issue 1, Page(s) 3–13

    Abstract: Circulating microRNAs (miRNAs) can potentially be used as sensitive and specific biomarkers for tissue injury. However, the usefulness of circulating miRNAs as safety biomarkers in nonclinical toxicological studies using nonhuman primates is debatable ... ...

    Abstract Circulating microRNAs (miRNAs) can potentially be used as sensitive and specific biomarkers for tissue injury. However, the usefulness of circulating miRNAs as safety biomarkers in nonclinical toxicological studies using nonhuman primates is debatable owing to the limited information on organ-specific miRNAs. Therefore, a systematic investigation was performed to address this point. We identified organ-specific miRNAs from cynomolgus monkeys by next-generation sequencing analysis, which revealed that miR-122 was only abundant in the liver, whereas miR-192 was abundant in the liver, stomach, intestines, and kidney. The sequences of these miRNAs were identical to their human counterparts. Next, the absolute miR-122 and miR-192 levels were qualified by quantitative reverse transcription polymerase chain reaction (RT-qPCR) to determine the circulating levels of the miRNAs. No significant differences in the levels of circulating miRNAs between sexes were noted, and there was greater interindividual variation in miR-122 (20-fold variation) than in miR-192 (8-fold variation), based on their dynamic ranges. Finally, we evaluated the fluctuation in circulating liver-specific miRNAs in a monkey model of acetaminophen-induced hepatotoxicity. Acetaminophen with L-buthionine-(S,R)-sulfoximine induced hepatotoxicity in all the animals, which was characterized histopathologically by centrilobular necrosis and vacuolation of hepatocytes. Circulating miR-122 and miR-192 levels increased more than ALT levels after 24 h, indicating that circulating miR-122 and miR-192 may serve as sensitive biomarkers for the detection of hepatotoxicity in cynomolgus monkeys. This review describes the fundamental profiles of circulating liver-specific miRNAs in cynomolgus monkeys and focusses on their organ specificity, circulating levels, and fluctuations in drug-induced hepatotoxicity.
    Language English
    Publishing date 2017-09-08
    Publishing country Japan
    Document type Journal Article ; Review
    ZDB-ID 2128461-1
    ISSN 1881-915X ; 0914-9198
    ISSN (online) 1881-915X
    ISSN 0914-9198
    DOI 10.1293/tox.2017-0036
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  6. Article ; Online: Evaluating the safety profile of calcineurin inhibitors: cancer risk in patients with systemic lupus erythematosus from the LUNA registry-a historical cohort study.

    Ichinose, Kunihiro / Sato, Shuntaro / Igawa, Takashi / Okamoto, Momoko / Takatani, Ayuko / Endo, Yushiro / Tsuji, Sosuke / Shimizu, Toshimasa / Sumiyoshi, Remi / Koga, Tomohiro / Kawashiri, Shin-Ya / Iwamoto, Naoki / Tamai, Mami / Nakamura, Hideki / Origuchi, Tomoki / Yajima, Nobuyuki / Sada, Ken-Ei / Miyawaki, Yoshia / Yoshimi, Ryusuke /
    Shimojima, Yasuhiro / Ohno, Shigeru / Kajiyama, Hiroshi / Sato, Shuzo / Fujiwara, Michio / Kawakami, Atsushi

    Arthritis research & therapy

    2024  Volume 26, Issue 1, Page(s) 48

    Abstract: Background: Previous studies have shown conflicting evidence regarding the incidence of cancer in patients with systemic lupus erythematosus (SLE) compared with that in healthy individuals. Calcineurin inhibitors (CNIs) such as cyclosporine and ... ...

    Abstract Background: Previous studies have shown conflicting evidence regarding the incidence of cancer in patients with systemic lupus erythematosus (SLE) compared with that in healthy individuals. Calcineurin inhibitors (CNIs) such as cyclosporine and tacrolimus have been widely used to treat SLE; however, their effects on cancer risk remain unclear. We aimed to investigate the incidence of cancer in patients with SLE and determine the potential association between CNI use and cancer risk.
    Methods: The standardized incidence ratio (SIR) of cancer among patients with lupus in the Lupus Registry of Nationwide Institutions (LUNA) was calculated based on the age-standardized incidence rate of cancer reported by Japan's Ministry of Health, Labour and Welfare. We also examined the association between CNI exposure and cancer risk, while considering potential confounding factors. The analysis accounted for confounding variables such as age, sex, smoking history, maximum glucocorticoid dose, treatment history with cyclophosphamide, ongoing hydroxychloroquine, Systemic Lupus International Collaboration Clinics/American College of Rheumatology Damage Index (SDI) value (excluding cancer occurrence), comorbidity of diabetes mellitus, and smoking history.
    Results: The study included 704 patients with SLE (625 females; 88.8%) with a median age of 44 years [interquartile range (IQR) = 34-55] years. The median past maximum glucocorticoid dose was 40 mg/day [IQR = 30-60 mg/day], and the SDI at registration was 1 [IQR = 0-2]. Among the patients, 246 (35.1%) had smoking histories, and 38 (5.4%) experienced cancer complications. Gynecological malignancies accounted for 63.2% of all cancers. The SIR of cancer in the LUNA cohort was 1.08 (95% confidence interval [CI] = 0.74-1.43). No statistically significant risks of cancer were found in relation to CNI treatment history; the odds ratio using multiple logistic regression was 1.12 (95% CI = 0.42-3.00), the risk ratio using standardization was 1.18 (95% CI = 0.47-2.16), and the risk ratio using inverse probability weighting was 1.8 (95% CI = 0.41-4.66).
    Conclusions: The incidence of cancer in patients with SLE in the LUNA cohort did not significantly differ from that in the general population. These findings suggest that CNI treatment in this cohort did not pose a risk factor for cancer development.
    MeSH term(s) Female ; Humans ; Adult ; Middle Aged ; Cohort Studies ; Calcineurin Inhibitors/adverse effects ; Glucocorticoids/therapeutic use ; Lupus Erythematosus, Systemic/complications ; Lupus Erythematosus, Systemic/drug therapy ; Lupus Erythematosus, Systemic/epidemiology ; Risk Factors ; Registries ; Neoplasms/chemically induced ; Neoplasms/epidemiology ; Severity of Illness Index
    Chemical Substances Calcineurin Inhibitors ; Glucocorticoids
    Language English
    Publishing date 2024-02-12
    Publishing country England
    Document type Journal Article
    ZDB-ID 2107602-9
    ISSN 1478-6362 ; 1478-6354
    ISSN (online) 1478-6362
    ISSN 1478-6354
    DOI 10.1186/s13075-024-03285-x
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  7. Article ; Online: Absolute Quantification of Plasma MicroRNA Levels in Cynomolgus Monkeys, Using Quantitative Real-time Reverse Transcription PCR.

    Iguchi, Takuma / Niino, Noriyo / Tamai, Satoshi / Sakurai, Ken / Mori, Kazuhiko

    Journal of visualized experiments : JoVE

    2018  , Issue 132

    Abstract: RT-qPCR is one of the most common methods to assess individual target miRNAs. MiRNAs levels are generally measured relative to a reference sample. This approach is appropriate for examining physiological changes in target gene expression levels. However, ...

    Abstract RT-qPCR is one of the most common methods to assess individual target miRNAs. MiRNAs levels are generally measured relative to a reference sample. This approach is appropriate for examining physiological changes in target gene expression levels. However, absolute quantification using better statistical analysis is preferable for a comprehensive assessment of gene expression levels. Absolute quantification is still not in common use. This report describes a protocol for measuring the absolute levels of plasma miRNA, using RT-qPCR with or without pre-amplification. A fixed volume (200 µL) of EDTA-plasma was prepared from the blood collected from the femoral vein of conscious cynomolgus monkeys (n = 50). Total RNA was extracted using commercially available system. Plasma miRNAs were quantified by probe-based RT-qPCR assays which contains miRNA-specific forward/reverse PCR primer and probe. Standard curves for absolute quantification were generated using commercially available synthetic RNA oligonucleotides. A synthetic cel-miR-238 was used as an external control for normalization and quality assessment. The miRNAs that showed quantification cycle (Cq) values above 35 were pre-amplified prior to the qPCR step. Among the 8 miRNAs examined, miR-122, miR-133a, and miR-192 were detectable without pre-amplification, whereas miR-1, miR-206, and miR-499a required pre-amplification because of their low expression levels. MiR-208a and miR-208b were not detectable even after pre-amplification. Sample processing efficiency was evaluated by the Cq values of the spiked cel-miR-238. In this assay method, technical variation was estimated to be less than 3-fold and the lower limit of quantification (LLOQ) was 10
    MeSH term(s) Animals ; Gene Expression Profiling ; Macaca fascicularis/blood ; Macaca fascicularis/genetics ; MicroRNAs/blood ; Real-Time Polymerase Chain Reaction/methods
    Chemical Substances MicroRNAs
    Language English
    Publishing date 2018-02-12
    Publishing country United States
    Document type Journal Article ; Video-Audio Media
    ZDB-ID 2259946-0
    ISSN 1940-087X ; 1940-087X
    ISSN (online) 1940-087X
    ISSN 1940-087X
    DOI 10.3791/56850
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  8. Article: Expert Consensus Document: Diagnosis for Chronic Constipation with Faecal Retention in the Rectum Using Ultrasonography.

    Matsumoto, Masaru / Misawa, Noboru / Tsuda, Momoko / Manabe, Noriaki / Kessoku, Takaomi / Tamai, Nao / Kawamoto, Atsuo / Sugama, Junko / Tanaka, Hideko / Kato, Mototsugu / Haruma, Ken / Sanada, Hiromi / Nakajima, Atsushi

    Diagnostics (Basel, Switzerland)

    2022  Volume 12, Issue 2

    Abstract: Chronic constipation is a common gastrointestinal disorder in older adults, and it is very important to manage chronic constipation. However, evaluating these subjective symptoms is extremely difficult in cases where patients are unable to express their ... ...

    Abstract Chronic constipation is a common gastrointestinal disorder in older adults, and it is very important to manage chronic constipation. However, evaluating these subjective symptoms is extremely difficult in cases where patients are unable to express their symptoms because of a cognitive or physical impairment. Hence, it is necessary to observe the patient's colonic faecal retention using objective methods. Ultrasonography observation for colonic faecal retention is useful for diagnosing constipation and evaluating the effectiveness of treatment. Since there was no standard protocol for interpreting rectal ultrasonography findings, we developed an observation protocol through an expert consensus. We convened a group of experts in the diagnosis and evaluation of chronic constipation and ultrasonography to discuss and review the current literature on this matter. Together, they composed a succinct, evidence-based observation protocol for rectal faecal retention using ultrasonography. We created an observation protocol to enhance the quality and accuracy of diagnosis of chronic constipation, especially rectal constipation. This consensus statement is intended to serve as a guide for physicians, laboratory technicians and nurses who do not specialise in ultrasound or the diagnosis of chronic constipation.
    Language English
    Publishing date 2022-01-25
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2662336-5
    ISSN 2075-4418
    ISSN 2075-4418
    DOI 10.3390/diagnostics12020300
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  9. Article ; Online: Comprehensive Analysis of Circulating microRNA Specific to the Liver, Heart, and Skeletal Muscle of Cynomolgus Monkeys.

    Iguchi, Takuma / Niino, Noriyo / Tamai, Satoshi / Sakurai, Ken / Mori, Kazuhiko

    International journal of toxicology

    2017  Volume 36, Issue 3, Page(s) 220–228

    Abstract: Circulating microRNAs (miRNAs) could represent sensitive and specific biomarkers for tissue injury. However, their utility as biomarkers in nonclinical toxicological studies using nonhuman primates is limited by a lack of information on their organ ... ...

    Abstract Circulating microRNAs (miRNAs) could represent sensitive and specific biomarkers for tissue injury. However, their utility as biomarkers in nonclinical toxicological studies using nonhuman primates is limited by a lack of information on their organ specificity and circulating levels under resting condition of the animals. Herein, liver, heart, and skeletal muscle-specific expression patterns of miRNAs were determined in 27 tissues/organs from male and female monkeys (n =2/sex) by next-generation sequencing (NGS) analysis. This analysis revealed organ-specific miRNAs in the liver (miR-122), heart (miR-208a and miR-499a), and skeletal muscle (miR-206). Next, plasma was collected from conscious-naive male and female cynomolgus monkeys (n = 25/sex) to better understand the expressions of organ-specific circulating miRNAs. The absolute values of circulating miRNAs were quantified using a Taqman microRNA assay. MiR-1, miR-133a, and miR-208b showed preferential expression in the heart and skeletal muscles, whereas miR-192 was abundant in the liver, stomach, small intestine, and kidney. These miRNAs had identical sequences to their human counterparts. Six organ-specific miRNAs (miR-1, miR-122, miR-133a, miR-192, miR-206, and miR-499a) could be evaluated quantitatively by quantitative real-time reverse transcription polymerase chain reaction with or without preamplification. No significant sex differences were noted for these circulating miRNAs. For their circulation levels, miR-133a showed more than 900-fold interindividual variation, whereas miR-122 showed only a 20-fold variation. In conclusion, we profiled circulating organ-specific miRNAs for the liver, heart, and skeletal muscle of cynomolgus monkeys.
    Language English
    Publishing date 2017-05
    Publishing country United States
    Document type Journal Article
    ZDB-ID 1379845-5
    ISSN 1092-874X ; 1091-5818
    ISSN (online) 1092-874X
    ISSN 1091-5818
    DOI 10.1177/1091581817704975
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  10. Article ; Online: Morphological characteristics of infected subdural hematoma: Comparison with images of chronic subdural hematoma.

    Tamai, Sho / Watanabe, Takuya / Ichinose, Toshiya / Murakami, Ken-Ichi / Ueno, Megumi / Munemoto, Shigeru / Nakada, Mitsutoshi / Hayashi, Yutaka

    Clinical neurology and neurosurgery

    2020  Volume 194, Page(s) 105831

    Abstract: Objectives: Infected subdural hematoma (ISH) is a rare type of subdural empyema, with fewer than 50 cases reported to date. Its radiological features have not been adequately described, making diagnosis challenging. At our institution, two adults ... ...

    Abstract Objectives: Infected subdural hematoma (ISH) is a rare type of subdural empyema, with fewer than 50 cases reported to date. Its radiological features have not been adequately described, making diagnosis challenging. At our institution, two adults presented with ISH, which exhibited a characteristic shape on preoperative imaging.
    Patients and methods: This study examined ISH cases and chronic subdural hematoma (CSH) cases that underwent surgery at the Ishikawa Prefectural Central Hospital between January 2016 and March 2018. To distinguish ISH from CSH, we focused on three specific radiological features: the biconvex shape of the hematoma, presence of a high-density region at the lower end of the hematoma on plain computed tomography (CT), and presence of a hyper-intense signal within the hematoma on diffusion weighted imaging (DWI).
    Results: We analyzed 30 ISH (current and previously reported) and 102 CSH cases in our study. We found no statistically significant associations between the hematoma type (ISH or CSH) and the presence of a high-density region at the lower end of the hematoma on plain CT (p = 0.13) or the presence of hyperintensity in the hematoma on DWI (p = 1.00). Conversely, a statistically significant association was found between the hematoma type and the biconvex shape of the hematoma (p < 0.01).
    Conclusion: These results suggest that the shape of the hematoma on imaging provides valuable information that can be used to differentiate ISH from CSH and optimize therapeutic approaches.
    MeSH term(s) Aged, 80 and over ; Central Nervous System Infections/diagnostic imaging ; Central Nervous System Infections/psychology ; Central Nervous System Infections/surgery ; Cognition Disorders/etiology ; Cognition Disorders/psychology ; Diagnosis, Differential ; Diffusion Magnetic Resonance Imaging ; Fatal Outcome ; Hematoma, Subdural/diagnostic imaging ; Hematoma, Subdural/psychology ; Hematoma, Subdural/surgery ; Hematoma, Subdural, Chronic/diagnostic imaging ; Hematoma, Subdural, Chronic/surgery ; Humans ; Male ; Neurosurgical Procedures ; Tomography, X-Ray Computed ; Treatment Outcome
    Language English
    Publishing date 2020-04-08
    Publishing country Netherlands
    Document type Case Reports ; Comparative Study ; Journal Article
    ZDB-ID 193107-6
    ISSN 1872-6968 ; 0303-8467
    ISSN (online) 1872-6968
    ISSN 0303-8467
    DOI 10.1016/j.clineuro.2020.105831
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