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  1. Article ; Online: The structure of the rat vitamin B

    Bokhove, Marcel / Kawamura, Takashi / Okumura, Hideo / Goto, Sawako / Kawano, Yoshiaki / Werner, Stefan / Jarczowski, Franziska / Klimyuk, Victor / Saito, Akihiko / Kumasaka, Takashi

    The Journal of biological chemistry

    2024  Volume 300, Issue 5, Page(s) 107289

    Abstract: ... Vitamin ... ...

    Abstract Vitamin B
    Language English
    Publishing date 2024-04-16
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2997-x
    ISSN 1083-351X ; 0021-9258
    ISSN (online) 1083-351X
    ISSN 0021-9258
    DOI 10.1016/j.jbc.2024.107289
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: The endocytosis receptor megalin: From bench to bedside.

    Goto, Sawako / Hosojima, Michihiro / Kabasawa, Hideyuki / Saito, Akihiko

    The international journal of biochemistry & cell biology

    2023  Volume 157, Page(s) 106393

    Abstract: The large (∼600 kDa) endocytosis receptor megalin/low-density lipoprotein receptor-related protein 2 is highly expressed at the apical membrane of proximal tubular epithelial cells (PTECs). Megalin plays an important role in the endocytosis of various ... ...

    Abstract The large (∼600 kDa) endocytosis receptor megalin/low-density lipoprotein receptor-related protein 2 is highly expressed at the apical membrane of proximal tubular epithelial cells (PTECs). Megalin plays an important role in the endocytosis of various ligands via interactions with intracellular adaptor proteins, which mediate the trafficking of megalin in PTECs. Megalin mediates the retrieval of essential substances, including carrier-bound vitamins and elements, and impairment of the endocytic process may result in the loss of those substances. In addition, megalin reabsorbs nephrotoxic substances such as antimicrobial (colistin, vancomycin, and gentamicin) or anticancer (cisplatin) drugs and advanced glycation end product-modified or fatty acid-containing albumin. The megalin-mediated uptake of these nephrotoxic ligands causes metabolic overload in PTECs and leads to kidney injury. Blockade or suppression of the megalin-mediated endocytosis of nephrotoxic substances may represent a novel therapeutic strategy for drug-induced nephrotoxicity or metabolic kidney disease. Megalin reabsorbs urinary biomarker proteins such as albumin, α
    MeSH term(s) Humans ; Albumins/metabolism ; Biomarkers/metabolism ; Endocytosis ; Kidney/metabolism ; Kidney Tubules, Proximal/metabolism ; Ligands ; Low Density Lipoprotein Receptor-Related Protein-2/metabolism
    Chemical Substances Albumins ; Biomarkers ; Ligands ; Low Density Lipoprotein Receptor-Related Protein-2 ; LRP2 protein, human
    Language English
    Publishing date 2023-02-28
    Publishing country Netherlands
    Document type Journal Article ; Review ; Research Support, Non-U.S. Gov't
    ZDB-ID 1228429-4
    ISSN 1878-5875 ; 1357-2725
    ISSN (online) 1878-5875
    ISSN 1357-2725
    DOI 10.1016/j.biocel.2023.106393
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Defective C3d caused by C3 p.W1034R in inherited atypical hemolytic uremic syndrome.

    Tsuchida, Masafumi / Goto, Shin / Watanabe, Hirofumi / Goto, Sawako / Yamaguchi, Hiroki / Narita, Ichiei

    Molecular genetics & genomic medicine

    2023  Volume 12, Issue 1, Page(s) e2288

    Abstract: Introduction: Atypical hemolytic uremic syndrome (aHUS) is a rare form of thrombotic microangiopathy. Personal genome analyses have revealed numerous aHUS-causing variants, mainly complement-related genes. However, not all aHUS-causing variants have ... ...

    Abstract Introduction: Atypical hemolytic uremic syndrome (aHUS) is a rare form of thrombotic microangiopathy. Personal genome analyses have revealed numerous aHUS-causing variants, mainly complement-related genes. However, not all aHUS-causing variants have been functionally validated.
    Methods: An exome sequence analysis of a Japanese multiplex family composed of three patients diagnosed with aHUS in infancy and showing frequent relapses clustered in a dominant transmission mode was performed. Protein interaction between the C3d and C-terminal domains of factor H was analyzed using a quartz crystal microbalance.
    Results: Following filtering by heterozygous variants, amino acid substitutions, and allele frequency, the analysis revealed eight rare variants shared by the affected individuals. Variant prioritization listed C3 p.W1034R as the most likely candidate gene mutation in the affected individuals, despite being classified as a variant of uncertain significance. Binding of recombinant C3d harboring 1034R to recombinant short consensus repeats 15 to 20 of factor H was significantly suppressed compared with that of C3 with 1034W.
    Conclusion: C3 p.W1034R results in an inherited form of aHUS that often presents with recurrent episodes, possibly because of impaired interactions between the C3d and C-terminal domains of factor H. Following comprehensive genomic analysis, functional validation of C3 p.W1034R strengthens the molecular basis for aHUS pathophysiology.
    MeSH term(s) Humans ; Atypical Hemolytic Uremic Syndrome/genetics ; Complement Factor H/genetics ; Mutation ; Complement System Proteins/genetics ; Genetic Testing
    Chemical Substances Complement Factor H (80295-65-4) ; Complement System Proteins (9007-36-7)
    Language English
    Publishing date 2023-10-05
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2734884-2
    ISSN 2324-9269 ; 2324-9269
    ISSN (online) 2324-9269
    ISSN 2324-9269
    DOI 10.1002/mgg3.2288
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Megalin-related mechanism of hemolysis-induced acute kidney injury and the therapeutic strategy.

    Goto, Sawako / Hosojima, Michihiro / Kabasawa, Hideyuki / Arai, Kaho / Takemoto, Kazuya / Aoki, Hiroyuki / Komochi, Koichi / Kobayashi, Ryota / Sugita, Nanako / Endo, Taeko / Kaseda, Ryohei / Yoshida, Yutaka / Narita, Ichiei / Hirayama, Yoshiaki / Saito, Akihiko

    The Journal of pathology

    2024  

    Abstract: Hemolysis-induced acute kidney injury (AKI) is attributed to heme-mediated proximal tubule epithelial cell (PTEC) injury and tubular cast formation due to intratubular protein condensation. Megalin is a multiligand endocytic receptor for proteins, ... ...

    Abstract Hemolysis-induced acute kidney injury (AKI) is attributed to heme-mediated proximal tubule epithelial cell (PTEC) injury and tubular cast formation due to intratubular protein condensation. Megalin is a multiligand endocytic receptor for proteins, peptides, and drugs in PTECs and mediates the uptake of free hemoglobin and the heme-scavenging protein α
    Language English
    Publishing date 2024-05-09
    Publishing country England
    Document type Journal Article
    ZDB-ID 3119-7
    ISSN 1096-9896 ; 0022-3417
    ISSN (online) 1096-9896
    ISSN 0022-3417
    DOI 10.1002/path.6284
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Cushing's syndrome in pregnancy in which laparoscopic adrenalectomy was safely performed by a retroperitoneal approach.

    Takeuchi, Nobuyoshi / Imamura, Yusuke / Ishiwata, Kazuki / Kanesaka, Manato / Goto, Yusuke / Sazuka, Tomokazu / Suzuki, Sawako / Koide, Hisashi / Sakamoto, Shinichi / Ichikawa, Tomohiko

    IJU case reports

    2023  Volume 6, Issue 6, Page(s) 415–418

    Abstract: Introduction: Laparoscopic adrenalectomy is the standard treatment for adrenal tumors caused by Cushing's syndrome. However, few pregnant women have undergone adrenalectomy because of the risk of general anesthesia and surgery.: Case presentation: A ... ...

    Abstract Introduction: Laparoscopic adrenalectomy is the standard treatment for adrenal tumors caused by Cushing's syndrome. However, few pregnant women have undergone adrenalectomy because of the risk of general anesthesia and surgery.
    Case presentation: A 28-year-old woman presented with gradually worsening Cushing's signs at around 12 weeks of pregnancy. Magnetic resonance imaging displayed a 38-mm left adrenal tumor, which was the cause of the adrenal Cushing's syndrome. Metyrapone was started, which increased androgen levels. Since the management of Cushing's syndrome by medication alone is challenging, unilateral laparoscopic adrenalectomy by a retroperitoneal approach was performed at 23 weeks of the pregnancy. No perioperative complications were noted.
    Conclusion: Adrenalectomy is considered safe in pregnant women with Cushing's syndrome. Laparoscopic adrenalectomy by retroperitoneal approach should be chosen and performed between 14 and 30 weeks of pregnancy to prevent mother and fetal complications.
    Language English
    Publishing date 2023-09-10
    Publishing country Australia
    Document type Case Reports
    ISSN 2577-171X
    ISSN (online) 2577-171X
    DOI 10.1002/iju5.12637
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: Epithelioid hemangioendothelioma of the lung: CT findings and clinical course of 35 cases.

    Onishi, Yasuyuki / Kusumoto, Masahiko / Goto, Yasushi / Kaku, Sawako / Motoi, Noriko

    Japanese journal of clinical oncology

    2020  Volume 50, Issue 10, Page(s) 1195–1200

    Abstract: Objectives: To evaluate computed tomography findings and assess the clinical course of patients with pulmonary epithelioid hemangioendothelioma.: Methods: Patients diagnosed with pulmonary epithelioid hemangioendothelioma at our institution between ... ...

    Abstract Objectives: To evaluate computed tomography findings and assess the clinical course of patients with pulmonary epithelioid hemangioendothelioma.
    Methods: Patients diagnosed with pulmonary epithelioid hemangioendothelioma at our institution between 2000 and 2019 were retrospectively analyzed. Patients with pleural involvement were excluded. Computed tomography findings of the lung at diagnosis were classified into three patterns: multiple small nodules pattern (˂15 mm), multiple nodules with large lesions pattern (≥15 mm) and single lesion pattern. Additionally, the clinical course of patients was evaluated.
    Results: Thirty-five patients (15 men and 20 women; median age, 44 years) with pulmonary epithelioid hemangioendothelioma were identified. The multiple small nodules pattern, multiple nodules with large lesions pattern and single lesion pattern were observed in 25 (71.4%), 8 (22.9%) and 2 (5.7%) patients, respectively. In 22 (62.9%) patients, extra-pulmonary epithelioid hemangioendothelioma lesions were found. Most patients were followed without initial treatment, while two patients with single lesion pattern underwent surgical resection. The median follow-up period was 63 months. Five-year overall survival rate of all patients was 96.3%. Latest clinical information revealed that 20 (20/25, 80%) patients with multiple small nodules pattern were alive without symptoms. In patients with multiple nodules with large lesion pattern, four (4/8, 50%) patients were alive without symptoms, three (3/8, 37.5%) patients were alive with symptoms and one (1/8, 12.5%) died. No recurrence was observed in patients with single lesion pattern.
    Conclusions: Multiple small nodules pattern was the most common findings of pulmonary epithelioid hemangioendothelioma. Patients with pulmonary epithelioid hemangioendothelioma have good prognosis.
    MeSH term(s) Adult ; Aged ; Female ; Hemangioendothelioma, Epithelioid/diagnosis ; Hemangioendothelioma, Epithelioid/diagnostic imaging ; Hemangioendothelioma, Epithelioid/pathology ; Hemangioendothelioma, Epithelioid/surgery ; Humans ; Kaplan-Meier Estimate ; Lung Neoplasms/diagnostic imaging ; Lung Neoplasms/pathology ; Male ; Middle Aged ; Multiple Pulmonary Nodules/diagnostic imaging ; Multiple Pulmonary Nodules/pathology ; Retrospective Studies ; Tomography, X-Ray Computed
    Language English
    Publishing date 2020-06-30
    Publishing country England
    Document type Journal Article
    ZDB-ID 190978-2
    ISSN 1465-3621 ; 0368-2811
    ISSN (online) 1465-3621
    ISSN 0368-2811
    DOI 10.1093/jjco/hyaa106
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: Effectiveness of Plasma Exchange for Acute Pancreatitis Induced by Hypertriglyceridemia During Pregnancy.

    Goto, Sawako / Ookawara, Susumu / Tabei, Kaoru

    Therapeutic apheresis and dialysis : official peer-reviewed journal of the International Society for Apheresis, the Japanese Society for Apheresis, the Japanese Society for Dialysis Therapy

    2016  Volume 20, Issue 1, Page(s) 98–99

    MeSH term(s) Adult ; Anticoagulants/administration & dosage ; Disseminated Intravascular Coagulation/etiology ; Disseminated Intravascular Coagulation/therapy ; Female ; Guanidines/administration & dosage ; Humans ; Hypertriglyceridemia/blood ; Hypertriglyceridemia/complications ; Hypertriglyceridemia/diagnosis ; Pancreatitis/blood ; Pancreatitis/diagnosis ; Pancreatitis/etiology ; Pancreatitis/therapy ; Plasma ; Plasma Exchange/methods ; Pregnancy ; Pregnancy Complications/blood ; Pregnancy Complications/diagnosis ; Treatment Outcome
    Chemical Substances Anticoagulants ; Guanidines ; nafamostat (Y25LQ0H97D)
    Language English
    Publishing date 2016-02
    Publishing country Australia
    Document type Case Reports ; Letter
    ZDB-ID 2119809-3
    ISSN 1744-9987 ; 1091-6660 ; 1744-9979
    ISSN (online) 1744-9987
    ISSN 1091-6660 ; 1744-9979
    DOI 10.1111/1744-9987.12373
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article ; Online: Nephrotic syndrome with focal segmental glomerular lesions unclassified by Columbia classification; Pathology and clinical implication.

    Takaya Ozeki / Michio Nagata / Takayuki Katsuno / Koji Inagaki / Kazunori Goto / Sawako Kato / Yoshinari Yasuda / Naotake Tsuboi / Shoichi Maruyama

    PLoS ONE, Vol 16, Iss 1, p e

    2021  Volume 0244677

    Abstract: Background The Columbia classification is widely used for diagnosis of focal segmental glomerulosclerosis (FSGS). In practice, we occasionally encounter segmental glomerular lesions unclassified as Columbia classification. We analyzed the clinical ... ...

    Abstract Background The Columbia classification is widely used for diagnosis of focal segmental glomerulosclerosis (FSGS). In practice, we occasionally encounter segmental glomerular lesions unclassified as Columbia classification. We analyzed the clinical implication of unclassified segmental lesions comparing with Columbia-classified FSGS. Methods A retrospective cohort study from 13 local hospitals in Japan. From 172 biopsy cases diagnosed with FSGS or minimal change disease (MCD)/FSGS spectrum with unclassified segmental lesions, adult patients with nephrotic syndrome who received immunosuppressive therapies were included. The cases are classified by pathology, i.e., typical FSGS lesions sufficiently classified into subgroups of Columbia classification: collapsing (COL), tip (TIP), cellular (CEL), perihilar (PH), and not otherwise specified (NOS), and unclassified by the Columbia classification into three subgroups: "endothelial damage,"; "simple attachment,"; and "minor cellular lesion,". The response to immunosuppressive treatment and 30% decline of eGFR were compared. Results Among 48 eligible cases, all were Japanese, 34 were typical FSGS; 13 TIP, 15 CEL, 6 NOS, and no COL or PH cases. Fourteen were unclassified cases: endothelial damage (n = 6), simple attachment (n = 5), and minor cellular lesion (n = 3). The median age of overall patients was 60 years old and the median of eGFR and urinary protein creatinine ratio was 51.5 mL/min/1.73m2 and 7.35, respectively. They received similar therapeutic regimen. Kaplan-Meier analysis revealed no significant difference in treatment response between typical FSGS and unclassified cases. Evaluating among the subgroups, endothelial damage, simple attachment and minor cellular lesion showed similar treatment response to TIP or CEL. No significant difference was also observed in the 30% decline of eGFR. Conclusions Japanese adult patients with nephrotic syndrome showing unclassified segmental lesions as Columbia classification may be equivalent clinical impact as Columbia ...
    Keywords Medicine ; R ; Science ; Q
    Subject code 616 ; 610
    Language English
    Publishing date 2021-01-01T00:00:00Z
    Publisher Public Library of Science (PLoS)
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  9. Article ; Online: Differences in the adsorption of nafamostat mesilate between polyester-polymer alloy and polysulfone membranes.

    Goto, Sawako / Ookawara, Susumu / Saito, Akihiko

    Journal of artificial organs : the official journal of the Japanese Society for Artificial Organs

    2017  Volume 20, Issue 2, Page(s) 138–144

    Abstract: We previously experienced severe clot formation in a polyester-polymer alloy (PEPA) dialyzer and hemodialysis (HD) circuit with nafamostat mesilate (NM) as an anticoagulant. The possibility of NM adsorption to the PEPA membrane was taken into ... ...

    Abstract We previously experienced severe clot formation in a polyester-polymer alloy (PEPA) dialyzer and hemodialysis (HD) circuit with nafamostat mesilate (NM) as an anticoagulant. The possibility of NM adsorption to the PEPA membrane was taken into consideration, but there was not enough information. In the present study, we evaluated differences in the adsorption of NM between a PEPA membrane (FDX-120 GW, Nikkiso, Tokyo, Japan) and two different polysulfone membranes (FX-140, Fresenius Medical Care, Tokyo, Japan; NV-15U, Toray Medical, Tokyo, Japan). We calculated the NM concentration by measuring absorbance at 241 nm using a spectrometer. NM adsorption was evaluated in three ways. First, we evaluated NM adsorption to hollow fibers. Then, we passed an NM solution through dialyzers and evaluated its adsorption in a single-pass examination. Finally, we circulated an NM solution in an HD circuit using a blood pump and evaluated NM adsorption. In all the experiments, NM adsorption to the PEPA membrane was greater than that to the polysulfone membranes examined. In the blood pump experiment, the estimated adsorption quantities of NM to the PEPA membrane and the FX-140 and NV-15U polysulfone membranes were 12.0 ± 0.1, 1.0 ± 0.1, and 4.1 ± 0.4 mg/m
    Language English
    Publishing date 2017-06
    Publishing country Japan
    Document type Journal Article
    ZDB-ID 1463555-0
    ISSN 1619-0904 ; 1434-7229
    ISSN (online) 1619-0904
    ISSN 1434-7229
    DOI 10.1007/s10047-016-0937-2
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article ; Online: Nephrotic syndrome with focal segmental glomerular lesions unclassified by Columbia classification; Pathology and clinical implication.

    Ozeki, Takaya / Nagata, Michio / Katsuno, Takayuki / Inagaki, Koji / Goto, Kazunori / Kato, Sawako / Yasuda, Yoshinari / Tsuboi, Naotake / Maruyama, Shoichi

    PloS one

    2021  Volume 16, Issue 1, Page(s) e0244677

    Abstract: Background: The Columbia classification is widely used for diagnosis of focal segmental glomerulosclerosis (FSGS). In practice, we occasionally encounter segmental glomerular lesions unclassified as Columbia classification. We analyzed the clinical ... ...

    Abstract Background: The Columbia classification is widely used for diagnosis of focal segmental glomerulosclerosis (FSGS). In practice, we occasionally encounter segmental glomerular lesions unclassified as Columbia classification. We analyzed the clinical implication of unclassified segmental lesions comparing with Columbia-classified FSGS.
    Methods: A retrospective cohort study from 13 local hospitals in Japan. From 172 biopsy cases diagnosed with FSGS or minimal change disease (MCD)/FSGS spectrum with unclassified segmental lesions, adult patients with nephrotic syndrome who received immunosuppressive therapies were included. The cases are classified by pathology, i.e., typical FSGS lesions sufficiently classified into subgroups of Columbia classification: collapsing (COL), tip (TIP), cellular (CEL), perihilar (PH), and not otherwise specified (NOS), and unclassified by the Columbia classification into three subgroups: "endothelial damage,"; "simple attachment,"; and "minor cellular lesion,". The response to immunosuppressive treatment and 30% decline of eGFR were compared.
    Results: Among 48 eligible cases, all were Japanese, 34 were typical FSGS; 13 TIP, 15 CEL, 6 NOS, and no COL or PH cases. Fourteen were unclassified cases: endothelial damage (n = 6), simple attachment (n = 5), and minor cellular lesion (n = 3). The median age of overall patients was 60 years old and the median of eGFR and urinary protein creatinine ratio was 51.5 mL/min/1.73m2 and 7.35, respectively. They received similar therapeutic regimen. Kaplan-Meier analysis revealed no significant difference in treatment response between typical FSGS and unclassified cases. Evaluating among the subgroups, endothelial damage, simple attachment and minor cellular lesion showed similar treatment response to TIP or CEL. No significant difference was also observed in the 30% decline of eGFR.
    Conclusions: Japanese adult patients with nephrotic syndrome showing unclassified segmental lesions as Columbia classification may be equivalent clinical impact as Columbia classification of FSGS.
    MeSH term(s) Adult ; Aged ; Biopsy ; Female ; Humans ; Immunosuppressive Agents/therapeutic use ; Japan/epidemiology ; Kidney Glomerulus/drug effects ; Kidney Glomerulus/pathology ; Male ; Middle Aged ; Nephrotic Syndrome/diagnosis ; Nephrotic Syndrome/drug therapy ; Nephrotic Syndrome/epidemiology ; Nephrotic Syndrome/pathology ; Retrospective Studies ; Treatment Outcome
    Chemical Substances Immunosuppressive Agents
    Language English
    Publishing date 2021-01-05
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ISSN 1932-6203
    ISSN (online) 1932-6203
    DOI 10.1371/journal.pone.0244677
    Database MEDical Literature Analysis and Retrieval System OnLINE

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