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  1. Article ; Online: First report of inherited protein S deficiency caused by paternal

    Nagaya, Satomi / Maruyama, Keiko / Watanabe, Atsushi / Meguro-Horike, Makiko / Imai, Yuta / Hiroshima, Yuki / Horike, Shin-Ichi / Kokame, Koichi / Morishita, Eriko

    Haematologica

    2022  Volume 107, Issue 1, Page(s) 330–333

    MeSH term(s) Humans ; Mosaicism ; Pedigree ; Protein S/genetics ; Protein S Deficiency/diagnosis ; Protein S Deficiency/genetics ; Thrombophilia
    Chemical Substances PROS1 protein, human ; Protein S
    Language English
    Publishing date 2022-01-01
    Publishing country Italy
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2333-4
    ISSN 1592-8721 ; 0017-6567 ; 0390-6078
    ISSN (online) 1592-8721
    ISSN 0017-6567 ; 0390-6078
    DOI 10.3324/haematol.2021.278527
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Protein S deficiency caused by cryptic splicing due to the novel intron variant c.346+5G>C in PROS1.

    Nagaya, Satomi / Togashi, Tomoki / Akiyama, Masaharu / Imai, Yuta / Matsumoto, Haruto / Moriya, Haruka / Meguro-Horike, Makiko / Yasuda, Ibuki / Kikuchi, Yuika / Kuwajima, Yamato / Horike, Shin-Ichi / Watanabe, Atsushi / Morishita, Eriko

    Thrombosis research

    2023  Volume 229, Page(s) 26–30

    Language English
    Publishing date 2023-06-24
    Publishing country United States
    Document type Letter
    ZDB-ID 121852-9
    ISSN 1879-2472 ; 0049-3848
    ISSN (online) 1879-2472
    ISSN 0049-3848
    DOI 10.1016/j.thromres.2023.06.020
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article: Thrombosis-related characteristics of pregnant women with antithrombin deficiency, protein C deficiency and protein S deficiency in Japan.

    Kobayashi, Takao / Sugiura, Kazuko / Ojima, Toshiyuki / Serizawa, Mariko / Hirai, Kyuya / Morishita, Eriko

    Thrombosis journal

    2024  Volume 22, Issue 1, Page(s) 18

    Abstract: ... characteristics. Antithrombin (AT) deficiency, protein C (PC) deficiency and protein S (PS) deficiency are ...

    Abstract Background:  We previously conducted a primary survey of pregnant women with hereditary thrombophilia based on national surveillance in Japan, but did not examine their thrombosis-related characteristics. Antithrombin (AT) deficiency, protein C (PC) deficiency and protein S (PS) deficiency are the major types of hereditary thrombophilia in Japan.
    Methods: We examined their detailed information related to thrombosis, and evaluated peripartum outcomes in comparison with control data obtained from the Japan Society of Obstetrics and Gynecology.
    Results: Definite or probable AT deficiency, PC deficiency and PS deficiency were observed in 80, 50, and 317 pregnancies, respectively, from 2014 to 2018 in Japan, with prevalence rates among total deliveries of 0.011%, 0.007%, 0.044%. The number of pregnancies with AT, PC and PS deficiency might have been as many as 27, 17 and 108 every year if complete answers had been provided. In the peripartum period of current pregnancies, 27.5% of women with AT deficiency, 28.0% with PC deficiency and 13.2% with PS deficiency developed thrombosis (p < 0.001 vs. control). Pregnant women with AT and PC deficiency were more susceptible to thrombosis than those with PS deficiency (P < 0.01). Of the thromboses, 92.3% occurred during pregnancy, 62.8% at less than 15 gestational weeks. The earliest onset of thrombosis was 5 gestational weeks. Prophylactic anticoagulation significantly prevented the onset of both antepartum and postpartum thrombosis (p < 0.0001). The rate of recurrent pregnancy loss in women with low PC or PS activities was significantly higher than in controls (p < 0.0001); however, it is unknown whether recurrent pregnancy loss is related to hereditary PS deficiency. There seem to have been few serious maternal or fetal/neonatal complications due to placental insufficiency related to a hypercoagulable state other than growth restriction.
    Conclusions: This survey revealed the thrombosis-related characteristics of pregnant women with hereditary thrombophilia in Japan. We suggest prophylactic anticoagulation to prevent maternal or fetal/neonatal complications.
    Language English
    Publishing date 2024-02-08
    Publishing country England
    Document type Journal Article
    ZDB-ID 2118392-2
    ISSN 1477-9560
    ISSN 1477-9560
    DOI 10.1186/s12959-024-00581-z
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Evaluation of Optimal Sample Processing Conditions for Accurate Measurement of Protein S Activity.

    Nagaya, Satomi / Araiso, Yuhei / Yamaguchi, Koichi / Omote, Yuichiro / Matsui, Asaka / Asakura, Hidesaku / Morishita, Eriko

    Annals of clinical and laboratory science

    2021  Volume 51, Issue 2, Page(s) 206–212

    Abstract: Objective: Protein S(PS) activity, especially PS-specific activity calculated by total PS activity ...

    Abstract Objective: Protein S(PS) activity, especially PS-specific activity calculated by total PS activity (tPSAct) divided by total PS antigen (tPSAg), is important in the diagnosis of hereditary PS deficiency (PSD). The cleavage of PS at a thrombin-sensitive region (TSR) by proteases reduces the anticoagulant activity of PS. Therefore, we investigated the effect of sample processing and storage on tPSAct and PS cleavage.
    Methods: Blood samples were collected from ten healthy subjects, and tPSAg and tPSAct were measured in whole blood or plasma stored at room temperature (RT) or 4°C. The cleaved PS was detected by western blotting, and the relationship between decreases in PS-specific activity and increase rates of cleaved PS was evaluated. Furthermore, the stability of tPSAg and tPSAct on the long-term storage of plasma was also evaluated.
    Results: Both whole blood and plasma stored at RT and whole blood stored at 4°C showed decreased tPSAct (50-80%) after 24 hours (
    Conclusion: Inappropriate processing and storage result in falsely low PS-specific activity due to the cleavage of PS in the blood collection tubes, which may lead to misdiagnosis of PSD. Samples should be centrifuged immediately after collection, and the plasma should be frozen.
    MeSH term(s) Adult ; Blood Specimen Collection/methods ; Female ; Healthy Volunteers ; Humans ; Male ; Plasma/chemistry ; Protein S/analysis ; Protein S/drug effects ; Protein S/metabolism ; Protein S Deficiency/diagnosis ; Specimen Handling/methods ; Temperature
    Chemical Substances PROS1 protein, human ; Protein S
    Language English
    Publishing date 2021-04-06
    Publishing country United States
    Document type Journal Article
    ZDB-ID 193092-8
    ISSN 1550-8080 ; 0091-7370 ; 0095-8905
    ISSN (online) 1550-8080
    ISSN 0091-7370 ; 0095-8905
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Effect on Plasma Protein S Activity in Patients Receiving the Factor Xa Inhibitors.

    Terakami, Takako / Nagaya, Satomi / Hayashi, Kenshi / Furusho, Hiroshi / Fujino, Noboru / Kato, Takeshi / Asakura, Hidesaku / Morishita, Eriko

    Journal of atherosclerosis and thrombosis

    2021  Volume 29, Issue 7, Page(s) 1059–1068

    Abstract: Aims: Measurement of protein S (PS) activity in patients taking direct oral anticoagulants (DOACs ...

    Abstract Aims: Measurement of protein S (PS) activity in patients taking direct oral anticoagulants (DOACs) using reagents based on a clotting assay results in falsely high PS activity, thus masking inherited PS deficiency, which is most frequently seen in the Japanese population. In this study, we investigated the effect of factor Xa (FXa) inhibitors on PS activity using the reagent on the basis of the chromogenic assay, which was recently developed in Japan.
    Methods: The study enrolled 152 patients (82 males and 70 females; the average age: 68.5±14.0 years) receiving three FXa inhibitors (rivaroxaban, edoxaban, and apixaban). PS activity was measured using the reagents on the basis of the clotting and chromogenic assays.
    Results: PS activity measured by the clotting assay reagents exhibited falsely high values depending on the plasma concentrations of FXa inhibitors in patients taking either rivaroxaban or edoxaban. However, none of the three FXa inhibitors affected PS activity when measured using the chromogenic assay.
    Conclusion: In patients taking rivaroxaban or edoxaban, inherited PS deficiency is likely missed because the levels of PS activity measured using the reagents based on the clotting assay are falsely high. However, we report that three FXa inhibitors do not affect PS activity measured by the chromogenic assay. When measuring the levels of PS activity in patients undergoing DOACs, the principles of each reagent should be understood. Furthermore, plasma samples must be collected at the time when plasma concentrations of DOACs are lowest or the DOAC-Stop reagent should be used.
    MeSH term(s) Administration, Oral ; Aged ; Aged, 80 and over ; Anticoagulants/pharmacology ; Blood Coagulation ; Factor Xa/pharmacology ; Factor Xa Inhibitors/pharmacology ; Female ; Humans ; Male ; Middle Aged ; Protein S/analysis ; Rivaroxaban/pharmacology ; Rivaroxaban/therapeutic use ; Thrombophilia
    Chemical Substances Anticoagulants ; Factor Xa Inhibitors ; Protein S ; Rivaroxaban (9NDF7JZ4M3) ; Factor Xa (EC 3.4.21.6)
    Language English
    Publishing date 2021-07-30
    Publishing country Japan
    Document type Journal Article
    ZDB-ID 2011474-6
    ISSN 1880-3873 ; 1340-3478
    ISSN (online) 1880-3873
    ISSN 1340-3478
    DOI 10.5551/jat.62951
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: Comparative evaluation of reagents for measuring protein S activity: possibility of harmonization.

    Ieko, Masahiro / Hotta, Taeko / Watanabe, Kumiko / Adachi, Tomoko / Takeuchi, Sawako / Naito, Sumiyoshi / Yoshida, Mika / Ohmura, Kazumasa / Takahashi, Nobuhiko / Morishita, Eriko / Tsuda, Hiroko / Kang, Dongchon

    International journal of hematology

    2021  Volume 113, Issue 4, Page(s) 530–536

    Abstract: Patients with congenital protein S (PS) deficiency show a hereditary predisposition for thrombosis ... at three facilities using three reagents for measuring PS: STA-Staclot Protein S (STA-PS), HemosIL ... Protein S (Clotting) (IL-PS), and a total PS assay (SNT-PS). The within-run precision of each reagent was ...

    Abstract Patients with congenital protein S (PS) deficiency show a hereditary predisposition for thrombosis, and PS deficiency is prevalent among Japanese populations. Diagnosis is based on symptoms of thrombosis and reduced PS activity. Three reagents that use different measurement principles for determining PS activity are available in Japan. This study aimed to confirm the possibility of harmonization of these three reagents to establish a universal standard for PS activity in Japanese populations. Commercial normal plasma and plasma samples obtained from healthy individuals and healthy pregnant women were tested at three facilities using three reagents for measuring PS: STA-Staclot Protein S (STA-PS), HemosIL Protein S (Clotting) (IL-PS), and a total PS assay (SNT-PS). The within-run precision of each reagent was good, as each had a coefficient of variation of ≤ 3.8%. The dilution linearity for each reagent was also good. The correlation coefficient was 0.94 for STA-PS vs. IL-PS, 0.93 for SNT-PS vs. STA-PS, and 0.90 for SNT-PS vs. IL-PS, indicating a good correlation. Although the three reagents available in Japan for measuring PS activity use different measurement methods, each showed good performance, and large differences were not observed between the obtained values. Harmonization among them appears possible.
    MeSH term(s) Biological Assay/methods ; Biological Assay/standards ; Blood Coagulation ; Humans ; Protein S/metabolism ; Protein S Deficiency/blood ; Protein S Deficiency/diagnosis ; Reagent Kits, Diagnostic/standards ; Reference Values ; Reproducibility of Results
    Chemical Substances Protein S ; Reagent Kits, Diagnostic
    Language English
    Publishing date 2021-01-08
    Publishing country Japan
    Document type Journal Article
    ZDB-ID 1076875-0
    ISSN 1865-3774 ; 0917-1258 ; 0925-5710
    ISSN (online) 1865-3774
    ISSN 0917-1258 ; 0925-5710
    DOI 10.1007/s12185-020-03049-8
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: Sphyraena stellata, a new barracuda from the Indo-Pacific, with redescriptions of S. helleri Jenkins, 1901 and S. novaehollandiae Günther, 1860 (Perciformes: Sphyraenidae).

    Morishita, Satoshi / Motomura, Hiroyuki

    Zootaxa

    2020  Volume 4772, Issue 3, Page(s) zootaxa.4772.3.6

    Abstract: ... In addition, S. helleri Jenkins, 1901 and S. novaehollandiae Günther, 1860, both being closely related ...

    Abstract A new barracuda, Sphyraena stellata, is described on the basis of 41 specimens [98.0-587.0 mm standard length (SL)] collected from the Indo-Pacific. The new species can be distinguished from all congeners in having the following combination of characters: one gill raker on first gill arch; pelvic-fin insertion located slightly before vertical through first dorsal-fin origin; pored lateral-line scales 134-141 (modally 137), total lateral-line scales 139-148 (146); scales above and below lateral line 15-17 (15) and 14-16 (15), respectively; snout comparatively short, its length 13.6-15.8 (mean 14.4) % SL; upper jaw short, its posterior tip not reaching to below anterior nostril, its length 10.0-12.2 (10.8) % SL; eye small, orbit diameter and depth 4.3-7.0 (4.9) and 3.9-5.6 (4.5) % SL, respectively; anal-fin base shortish, its length 6.9-8.1 (7.5) % SL; last dorsal- and anal-fin ray lengths 4.0-5.6 (4.7) and 3.6-5.6 (4.6) % SL, respectively; anus not close to anal-fin origin, anterior and posterior margins of former to anal-fin origin 7.5-11.9 (9.9) and 5.2-8.3 (6.8) % of head length, respectively; head sensory canal pores on suborbital area simple or slightly branched, their lowermost parts not close to margin of lacrimal bone, large smooth area lacking canal pores on mid-margin of lacrimal bone; two yellow stripes on lateral surface of body (remaining as black stripes in preserved specimens); and caudal fin gray. In addition, S. helleri Jenkins, 1901 and S. novaehollandiae Günther, 1860, both being closely related to the new species, are redescribed on the basis of 4 (243.3-545.8 mm SL) and 15 (270.8-598.0 mm SL) specimens, including holotypes, respectively, with new diagnostic characters proposed for both species.
    MeSH term(s) Animals ; Color ; Gills ; Head ; Perciformes
    Language English
    Publishing date 2020-05-11
    Publishing country New Zealand
    Document type Journal Article
    ISSN 1175-5334
    ISSN (online) 1175-5334
    DOI 10.11646/zootaxa.4772.3.6
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article ; Online: Personalized Medicine in Parkinson’s Disease

    Takayasu Mishima / Shinsuke Fujioka / Takashi Morishita / Tooru Inoue / Yoshio Tsuboi

    Journal of Personalized Medicine, Vol 11, Iss 650, p

    New Options for Advanced Treatments

    2021  Volume 650

    Abstract: Parkinson’s disease (PD) presents varying motor and non-motor features in each patient owing ...

    Abstract Parkinson’s disease (PD) presents varying motor and non-motor features in each patient owing to their different backgrounds, such as age, gender, genetics, and environmental factors. Furthermore, in the advanced stages, troublesome symptoms vary between patients due to motor and non-motor complications. The treatment of PD has made great progress over recent decades and has directly contributed to an improvement in patients’ quality of life, especially through the progression of advanced treatment. Deep brain stimulation, radiofrequency, MR–guided focused ultrasound, gamma knife, levodopa-carbidopa intestinal gel, and apomorphine are now used in the clinical setting for this disease. With multiple treatment options currently available for all stages of PD, we here discuss the most recent options for advanced treatment, including cell therapy in advanced PD, from the perspective of personalized medicine.
    Keywords Parkinson’s disease ; deep brain stimulation ; levodopa-carbidopa intestinal gel ; apomorphine ; radiofrequency ; focused ultrasound ; Medicine ; R
    Subject code 610
    Language English
    Publishing date 2021-07-01T00:00:00Z
    Publisher MDPI AG
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  9. Article: [A Case of Anastomotic Stenosis with Reconstructed Small Intestine Mucosal Damage during Taking S-1 Orally after Gastrectomy for Gastric Cancer].

    Shibata, Ryosuke / Kaida, Hiroki / Koreeda, Toshihiko / Morishita, Marina / Hirano, Yosuke / Omiya, Toshihiro / Uwatoko, Shugo / Komono, Akira / Kawamoto, Makoto / Sakamoto, Ryohei / Miyasaka, Yoshihiro / Higashi, Daijiro / Haraoka, Seiji / Nimura, Satoshi / Watanabe, Masato

    Gan to kagaku ryoho. Cancer & chemotherapy

    2022  Volume 48, Issue 13, Page(s) 1960–1962

    Abstract: ... S-1 as an adjuvant chemotherapy 7 weeks after gastrectomy. Seventeen days later after taking S-1 ...

    Abstract An 83-year-old woman underwent laparoscopic distal gastrectomy and Billroth Ⅱ reconstruction for gastric cancer. Since histopathological examination revealed that the lesion was Stage ⅢA, she had started taking S-1 as an adjuvant chemotherapy 7 weeks after gastrectomy. Seventeen days later after taking S-1 administration, she felt nauseous and self-interrupted. Nineteen days later, she was urgently hospitalized. Esophagogastroduodenoscopy(EGD)showed anastomotic lumen was open, but reconstructed small intestine mucosal damage was found, and reconstructed small intestine muscle layer was fused to anastomotic region. On 50th day of hospitalization, mucosa was regenerated and endoscopic balloon dilatation (EBD)was performed from 78th day. She was discharged on 151th day of hospitalization after 7 times of EBD. One year later, she does not need EBD and can be taken orally and has no recurrence.
    MeSH term(s) Aged, 80 and over ; Constriction, Pathologic ; Female ; Gastrectomy/adverse effects ; Gastroenterostomy ; Humans ; Laparoscopy ; Stomach Neoplasms/drug therapy ; Stomach Neoplasms/surgery
    Language Japanese
    Publishing date 2022-01-16
    Publishing country Japan
    Document type Case Reports ; Journal Article
    ZDB-ID 604842-0
    ISSN 0385-0684
    ISSN 0385-0684
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article ; Online: Racial differences in protein S Tokushima and two protein C variants as genetic risk factors for venous thromboembolism.

    Tsuda, Hiroko / Noguchi, Kenta / Oh, Doyeun / Bereczky, Zsuzsanna / Lee, Lai H / Kang, Dongchon / Dusse, Luci M S / das G Carvalho, Maria / Morishita, Eriko

    Research and practice in thrombosis and haemostasis

    2020  Volume 4, Issue 8, Page(s) 1295–1300

    Abstract: ... polymorphisms previously identified as genetic risk factors among East Asian subpopulations: protein S (PS ...

    Abstract Background: Racial differences in genetic risk factors for venous thromboembolism (VTE) are elucidated, with factor V Leiden and prothrombin G20210A being prevalent among the Caucasian population but rare among non-Caucasians.
    Objectives: To assess the worldwide distribution of three gene polymorphisms previously identified as genetic risk factors among East Asian subpopulations: protein S (PS) Tokushima (p.Lys196Glu), protein C (PC) p.Arg189Trp, and PC p.Lys193del.
    Methods: An international collaborative study group of seven centers in five countries-Japan, South Korea, Singapore, Hungary, and Brazil-was created, and genotype analyses were performed. A total of 2850 unrelated individuals (1061 patients with VTE and 1789 controls) were included.
    Results: PS Tokushima was confined to Japanese patients with VTE (allele frequency, 2.35%) and controls (1.12%), with an odds ratio (OR) of 2.15 (95% confidence interval, 1.16-3.99). PC p.Arg189Trp carriers were prevalent among Chinese and Malay patients with VTE in Singapore, with allele frequencies of 10.53% and 22.73%, respectively. Carriers of PC p.Lys193del were identified among Japanese and Korean patients with VTE (0.87% and 2.35%, respectively) and controls (0.36% and 1.07%, respectively), with the OR for VTE not being significant, and Chinese patients with VTE in Singapore (5.26%). In contrast, no carriers of PS Tokushima and two PC gene variants were found among patients with VTE or controls from Hungary, Brazil, or Indians in Singapore.
    Conclusion: The three variants were prevalent among East and Southeast Asians, having some differences in geographic distribution, but were absent among Caucasian subpopulations and Brazilians.
    Language English
    Publishing date 2020-10-20
    Publishing country United States
    Document type Journal Article
    ISSN 2475-0379
    ISSN (online) 2475-0379
    DOI 10.1002/rth2.12440
    Database MEDical Literature Analysis and Retrieval System OnLINE

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