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  1. Article ; Online: General Anesthesia Type and Cancer Prognosis: Comment.

    Iwasaki, Masae / Ma, Daqing

    Anesthesiology

    2021  Volume 135, Issue 1, Page(s) 191

    MeSH term(s) Anesthesia, Epidural ; Anesthesia, General/adverse effects ; Humans ; Neoplasms
    Language English
    Publishing date 2021-04-30
    Publishing country United States
    Document type Journal Article ; Comment
    ZDB-ID 269-0
    ISSN 1528-1175 ; 0003-3022
    ISSN (online) 1528-1175
    ISSN 0003-3022
    DOI 10.1097/ALN.0000000000003804
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Dexmedetomidine Might Exacerbate Acute Kidney Injury, While Midazolam Might Have a Postconditioning Effect: A Rat Model of Lipopolysaccharide-Induced Acute Kidney Injury.

    Hata, Akiko / Yamamoto, Makiko / Iwasaki, Masae / Morita, Tomonori / Ishikawa, Masashi / Sakamoto, Atsuhiro

    Journal of Nippon Medical School = Nippon Ika Daigaku zasshi

    2023  Volume 90, Issue 5, Page(s) 387–397

    Abstract: Background: The preconditioning effects of dexmedetomidine and propofol on septic acute kidney injury (AKI) have been reported, but the postconditioning effects remain unknown. This study investigated the postconditioning effects of dexmedetomidine, ... ...

    Abstract Background: The preconditioning effects of dexmedetomidine and propofol on septic acute kidney injury (AKI) have been reported, but the postconditioning effects remain unknown. This study investigated the postconditioning effects of dexmedetomidine, midazolam, and propofol on septic AKI.
    Methods: Forty-eight male Wistar rats were intraperitoneally administered lipopolysaccharide (LPS; 8.3 mg kg
    Results: Among LPS-treated groups, D group showed worsened renal dysfunction (L-C vs L-D: Cr, P=0.002, effect size (η
    Conclusions: Dexmedetomidine administration might worsen septic AKI, while midazolam might preserve kidney function via the NFκΒ pathway.
    MeSH term(s) Rats ; Male ; Animals ; Dexmedetomidine/pharmacology ; Midazolam/adverse effects ; Lipopolysaccharides/adverse effects ; Rats, Wistar ; Propofol/adverse effects ; I-kappa B Kinase/adverse effects ; Acute Kidney Injury/chemically induced ; Kidney ; NF-kappa B
    Chemical Substances Dexmedetomidine (67VB76HONO) ; Midazolam (R60L0SM5BC) ; Lipopolysaccharides ; Propofol (YI7VU623SF) ; I-kappa B Kinase (EC 2.7.11.10) ; NF-kappa B
    Language English
    Publishing date 2023-09-28
    Publishing country Japan
    Document type Journal Article
    ZDB-ID 2091563-9
    ISSN 1347-3409 ; 1345-4676
    ISSN (online) 1347-3409
    ISSN 1345-4676
    DOI 10.1272/jnms.JNMS.2023_90-406
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Anesthetics may modulate cancer surgical outcome: a possible role of miRNAs regulation.

    Ishikawa, Masashi / Iwasaki, Masae / Sakamoto, Atsuhiro / Ma, Daqing

    BMC anesthesiology

    2021  Volume 21, Issue 1, Page(s) 71

    Abstract: Background: microRNAs (miRNAs) are single-stranded and noncoding RNA molecules that control post-transcriptional gene regulation. miRNAs can be tumor suppressors or oncogenes through various mechanism including cancer cell biology, cell-to-cell ... ...

    Abstract Background: microRNAs (miRNAs) are single-stranded and noncoding RNA molecules that control post-transcriptional gene regulation. miRNAs can be tumor suppressors or oncogenes through various mechanism including cancer cell biology, cell-to-cell communication, and anti-cancer immunity.
    Main body: Anesthetics can affect cell biology through miRNA-mediated regulation of messenger RNA (mRNA). Indeed, sevoflurane was reported to upregulate miR-203 and suppresses breast cancer cell proliferation. Propofol reduces matrix metalloproteinase expression through its impact on miRNAs, leading to anti-cancer microenvironmental changes. Propofol also modifies miRNA expression profile in circulating extracellular vesicles with their subsequent anti-cancer effects via modulating cell-to-cell communication.
    Conclusion: Inhalational and intravenous anesthetics can alter cancer cell biology through various cellular signaling pathways induced by miRNAs' modification. However, this area of research is insufficient and further study is needed to figure out optimal anesthesia regimens for cancer patients.
    MeSH term(s) Anesthesia/methods ; Anesthetics/pharmacology ; Gene Expression Regulation/drug effects ; Humans ; MicroRNAs/drug effects ; Neoplasms/surgery ; RNA, Messenger/drug effects
    Chemical Substances Anesthetics ; MicroRNAs ; RNA, Messenger
    Language English
    Publishing date 2021-03-09
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't ; Review
    ISSN 1471-2253
    ISSN (online) 1471-2253
    DOI 10.1186/s12871-021-01294-w
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  4. Article ; Online: Worse ECOG-PS Is Associated with Increased 30-Day Mortality among Adults Older than 90 Years Undergoing Non-Cardiac Surgery: A Single-Center Retrospective Study.

    Iwasaki, Masae / Ishikawa, Masashi / Namizato, Dai / Sakamoto, Atsuhiro

    Journal of Nippon Medical School = Nippon Ika Daigaku zasshi

    2021  Volume 89, Issue 3, Page(s) 295–300

    Abstract: Background: A growing number of older patients are undergoing surgeries. However, reliable preoperative predictors of surgical mortality among older patients have not been identified. This study compared predictive factors for 30-day survival in ... ...

    Abstract Background: A growing number of older patients are undergoing surgeries. However, reliable preoperative predictors of surgical mortality among older patients have not been identified. This study compared predictive factors for 30-day survival in patients older than 90 years after non-cardiac surgery.
    Methods: This retrospective study at Nippon Medical School Hospital investigated the records of patients aged >90 years who underwent non-cardiac surgeries between 2010 and 2020. The data collected included age, gender, American Society of Anesthesiologists physical status (ASA-PS), preoperative Charlson score, preoperative fall risk assessment, Eastern Cooperative Oncology Group performance status (ECOG-PS), modified 5-item frailty index (mFI-5), need for intraoperative transfusion, postoperative complications, and 30-day survival after surgery.
    Results: A total of 327 cases of elective surgery and 149 cases of emergency surgery were examined. Nonsurvivors (n=20, 4.2%) had significantly worse preoperative ASA-PS (for emergency cases) (nonsurvivors vs. survivors, 2.8 [2-3] vs. 2.3 [1-4], p=0.045), ECOG-PS (3.0 [2-4] vs. 1.0 [0-4], p<0.001), and mFI-5 values (3.0 [1-4] vs. 1.0 [0-3], p<0.001), more emergency cases (75.0% vs. 36.2%, p=0.004), and a greater need for intraoperative transfusion (55.0% vs. 13.4%, p<0.001). Among frailty assessment methods, ECOG-PS was the most strongly associated with 30-day mortality (area under the curve, ECOG-PS: 0.98, p<0.001; mFI-5: 0.86, p<0.001; Charlson score: 0.53, p=0.71; fall risk assessment: 0.55, p=0.44). Kaplan-Maier curves and multivariate logistic regression analysis demonstrated that an ECOG-PS of >3 was significantly associated with 30-day mortality (ECOG-PS: Kaplan-Maier curve, p<0.001, Log-rank test; odds ratio 1.71, 95% confidence interval: 1.35-2.16, p<0.001).
    Conclusions: An ECOG-PS of >3 was significantly correlated with 30-day mortality after non-cardiac surgery in patients older than 90 years.
    MeSH term(s) Adult ; Elective Surgical Procedures/adverse effects ; Frailty/complications ; Humans ; Postoperative Complications/etiology ; Retrospective Studies ; Risk Assessment ; Risk Factors
    Language English
    Publishing date 2021-11-26
    Publishing country Japan
    Document type Journal Article
    ZDB-ID 2091563-9
    ISSN 1347-3409 ; 1345-4676
    ISSN (online) 1347-3409
    ISSN 1345-4676
    DOI 10.1272/jnms.JNMS.2022_89-304
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: The neutrophil to lymphocyte ratio and serum albumin as predictors of acute kidney injury after coronary artery bypass grafting.

    Ishikawa, Masashi / Iwasaki, Masae / Namizato, Dai / Yamamoto, Makiko / Morita, Tomonori / Ishii, Yosuke / Sakamoto, Atsuhiro

    Scientific reports

    2022  Volume 12, Issue 1, Page(s) 15438

    Abstract: Postoperative acute kidney injury (AKI) is a highly prevalent and serious complication after cardiac surgery. The aim of this study is to identify the predictors of AKI and the cut-off values after isolated off-pump coronary artery bypass grafting (OPCAB) ...

    Abstract Postoperative acute kidney injury (AKI) is a highly prevalent and serious complication after cardiac surgery. The aim of this study is to identify the predictors of AKI and the cut-off values after isolated off-pump coronary artery bypass grafting (OPCAB). A total of 329 adult patients, who underwent isolated OPCAB between December 2008 and February 2021, were retrospectively analyzed. The patients were divided into three groups: non-AKI, early AKI and late AKI groups. The early AKI group or the late AKI group were defined as 'having AKI that occurred before or after 48 h postoperatively', respectively. Multivariate logistic regression analysis was performed to identify the predictors of AKI. Receiver operating characteristic (ROC) curve analysis was used to evaluate the cutoff value, the sensitivity, and the specificity of the predictors. On the multivariate analysis, the emergency surgery, the preoperative serum albumin, and the postoperative day 1 neutrophil to lymphocyte ratio (NL ratio) were identified as the independent predictors of AKI. However, neither albumin nor the NL ratio predicted late AKI. The present study showed the preoperative albumin and the postoperative day 1 NL ratio were the robust and independent predictors of postoperative early AKI in isolated OPCAB.
    MeSH term(s) Acute Kidney Injury/diagnosis ; Acute Kidney Injury/etiology ; Adult ; Coronary Artery Bypass/adverse effects ; Humans ; Lymphocytes ; Neutrophils ; Postoperative Complications/etiology ; Retrospective Studies ; Risk Factors ; Serum Albumin
    Chemical Substances Serum Albumin
    Language English
    Publishing date 2022-09-14
    Publishing country England
    Document type Journal Article
    ZDB-ID 2615211-3
    ISSN 2045-2322 ; 2045-2322
    ISSN (online) 2045-2322
    ISSN 2045-2322
    DOI 10.1038/s41598-022-19772-7
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: Metronomic Chemotherapy for Pediatric Refractory Solid Tumors: A Retrospective Single-Center Study.

    Sakurai, Yukari / Iwasaki, Fuminori / Hirose, Ayana / Matsumoto, Naoya / Miyagawa, Naoyuki / Keino, Dai / Yokosuka, Tomoko / Hamanoue, Satoshi / Yanagimachi, Masakatsu / Shiomi, Masae / Goto, Shoko / Tanaka, Mio / Tanaka, Yukichi / Nozawa, Kumiko / Goto, Hiroaki

    Journal of pediatric hematology/oncology

    2024  

    Abstract: Metronomic chemotherapy (MC) is based on chronic administration of chemotherapeutic agents at minimally toxic doses without prolonged drug-free breaks, that inhibits tumor angiogenesis and induces tumor dormancy. This study aimed to determine the ... ...

    Abstract Metronomic chemotherapy (MC) is based on chronic administration of chemotherapeutic agents at minimally toxic doses without prolonged drug-free breaks, that inhibits tumor angiogenesis and induces tumor dormancy. This study aimed to determine the efficacy of MC for pediatric refractory solid tumors. We retrospectively analyzed the data of pediatric patients with relapsed/refractory solid tumors who received treatment, including low-dose continuous administration of anticancer drugs, at our institute. Of the 18 patients, the disease statuses at the initiation of MC were complete remission (n=2), partial remission/stable disease (n=5), and progressive disease (n=11). The overall survival rate was 61% at 12 months and 34% at 24 months, and the progression-free survival rate was 21% at 12 and 24 months. Although only 5 of the 18 patients showed certain tumor regression or maintained remission, tumors that stabilized, maintained remission/stable disease, and showed certain advantages in terms of overall survival rate, even if limited to progressive disease. Approximately half of the patients demonstrated temporal tumor stabilization and improved survival time. Overall, previous reports and the present study support the conclusion that MC has the potential to play an important role in pediatric cancer treatment during the advanced stage.
    Language English
    Publishing date 2024-04-29
    Publishing country United States
    Document type Journal Article
    ZDB-ID 1231152-2
    ISSN 1536-3678 ; 1077-4114 ; 0192-8562
    ISSN (online) 1536-3678
    ISSN 1077-4114 ; 0192-8562
    DOI 10.1097/MPH.0000000000002870
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  7. Article ; Online: "Anti-cancer" effect of ketamine in comparison with MK801 on neuroglioma and lung cancer cells.

    Saito, Junichi / Zao, Hailin / Wu, Lingzhi / Iwasaki, Masae / Sun, Qizhe / Hu, Cong / Ishikawa, Masashi / Hirota, Kazuyoshi / Ma, Daqing

    European journal of pharmacology

    2023  Volume 945, Page(s) 175580

    Abstract: Ketamine, a N-methyl-D-aspartate (NMDA) receptor antagonist, is commonly used to induce anaesthesia during cancer surgery and relieve neuropathic and cancer pain. This study was conducted to assess whether ketamine has any inhibiting effects on ... ...

    Abstract Ketamine, a N-methyl-D-aspartate (NMDA) receptor antagonist, is commonly used to induce anaesthesia during cancer surgery and relieve neuropathic and cancer pain. This study was conducted to assess whether ketamine has any inhibiting effects on neuroglioma (H4) and lung cancer cells (A549) in vitro. The cultured H4 and A549 cells were treated with ketamine and MK801 (0.1, 1, 10, 100, or 1000 μM) for 24 h. The expressions of glutamate receptors on both types of cancer cells were assessed with qRT-PCR. In addition, cell proliferation and migration were assessed with cell counting Kit-8 and wound healing assays. Cyclin D1, matrix metalloproteinase 9 (MMP9), phosphorylation of extracellular signal-regulated kinase (pERK), and cleaved-caspase-3 expression together with reactive oxygen species (ROS) were also assessed with Western blot, immunostaining, and/or flowcytometry. NMDA and α-amino-3-hydroxy-5-methyl-4-isoxazole propionic acid receptors were expressed on both H4 and A549 cells. Ketamine inhibited cancer cell proliferation and migration in a dose-dependent manner by suppressing the cell cycle and inducing apoptosis. Ketamine decreased cyclin D1, pERK, and MMP9 expression. In addition, ketamine increased ROS and cleaved caspase-3 expression and induced apoptosis. The anti-cancer effect of ketamine was more pronounced in A549 cells when compared with H4 cells. MK801 showed similar effects to those of ketamine. Ketamine suppressed cell proliferation and migration in both neuroglioma and lung cancer cells, likely through the antagonization of NMDA receptors.
    MeSH term(s) Humans ; Ketamine/pharmacology ; Ketamine/therapeutic use ; Dizocilpine Maleate/pharmacology ; Caspase 3/metabolism ; Cyclin D1/metabolism ; Matrix Metalloproteinase 9/genetics ; Matrix Metalloproteinase 9/metabolism ; N-Methylaspartate/pharmacology ; Reactive Oxygen Species/metabolism ; Lung Neoplasms/drug therapy ; Lung Neoplasms/metabolism ; Apoptosis ; Receptors, N-Methyl-D-Aspartate/metabolism
    Chemical Substances Ketamine (690G0D6V8H) ; Dizocilpine Maleate (6LR8C1B66Q) ; Caspase 3 (EC 3.4.22.-) ; Cyclin D1 (136601-57-5) ; Matrix Metalloproteinase 9 (EC 3.4.24.35) ; N-Methylaspartate (6384-92-5) ; Reactive Oxygen Species ; Receptors, N-Methyl-D-Aspartate
    Language English
    Publishing date 2023-02-08
    Publishing country Netherlands
    Document type Journal Article
    ZDB-ID 80121-5
    ISSN 1879-0712 ; 0014-2999
    ISSN (online) 1879-0712
    ISSN 0014-2999
    DOI 10.1016/j.ejphar.2023.175580
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  8. Article ; Online: The differential cancer growth associated with anaesthetics in a cancer xenograft model of mice: mechanisms and implications of postoperative cancer recurrence.

    Iwasaki, Masae / Zhao, Hailin / Hu, Cong / Saito, Junichi / Wu, Lingzhi / Sherwin, Aislinn / Ishikawa, Masashi / Sakamoto, Atsuhiro / Buggy, Donal / Ma, Daqing

    Cell biology and toxicology

    2022  Volume 39, Issue 4, Page(s) 1561–1575

    Abstract: Anaesthetics may modify colorectal cancer cell biology which potentially affects long-term survival. This study aims to compare propofol and sevoflurane regarding with the direct anaesthetic effects on cancer malignancy and the indirect effects on host ... ...

    Abstract Anaesthetics may modify colorectal cancer cell biology which potentially affects long-term survival. This study aims to compare propofol and sevoflurane regarding with the direct anaesthetic effects on cancer malignancy and the indirect effects on host immunity in a cancer xenograft mode of mice. Cultured colon cancer cell (Caco-2) was injected subcutaneously to nude mice (day 1). Mice were exposed to either 1.5% sevoflurane for 1.5 h or propofol (20 μg g
    MeSH term(s) Humans ; Mice ; Animals ; Propofol/pharmacology ; Propofol/therapeutic use ; Sevoflurane/pharmacology ; Anesthetics, Intravenous/pharmacology ; Tissue Inhibitor of Metalloproteinase-2 ; Anesthetics, Inhalation/pharmacology ; Methyl Ethers/pharmacology ; Heterografts ; Lipopolysaccharides/pharmacology ; Caco-2 Cells ; Mice, Nude ; Neoplasms/drug therapy
    Chemical Substances Propofol (YI7VU623SF) ; Sevoflurane (38LVP0K73A) ; Anesthetics, Intravenous ; Tissue Inhibitor of Metalloproteinase-2 (127497-59-0) ; Anesthetics, Inhalation ; Methyl Ethers ; Lipopolysaccharides
    Language English
    Publishing date 2022-08-12
    Publishing country Switzerland
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 48824-0
    ISSN 1573-6822 ; 0742-2091
    ISSN (online) 1573-6822
    ISSN 0742-2091
    DOI 10.1007/s10565-022-09747-9
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article: [Molecular basis for the multiplication of negative-strand RNA viruses: basic research and potential applications in vaccine development].

    Iwasaki, Masaharu

    Uirusu

    2023  Volume 72, Issue 1, Page(s) 67–78

    Abstract: Viruses achieve their efficient reproduction by utilizing their limited components (nucleic acids, lipids, and proteins) and host cell machineries. A detailed understanding of virus-virus and virus-host interactions will lead to the elucidation of ... ...

    Abstract Viruses achieve their efficient reproduction by utilizing their limited components (nucleic acids, lipids, and proteins) and host cell machineries. A detailed understanding of virus-virus and virus-host interactions will lead to the elucidation of mechanisms underlying viral pathogenesis and the development of novel medical countermeasures. We elucidated the details of several such interactions and their roles in the multiplication of negative-strand RNA viruses, measles virus, and Lassa virus. These discoveries were harnessed to develop a novel genetic approach for the generation of live-attenuated vaccine candidates with a well-defined molecular mechanism of attenuation. This article describes our findings.
    Language Japanese
    Publishing date 2023-10-24
    Publishing country Japan
    Document type English Abstract ; Journal Article
    ZDB-ID 603272-2
    ISSN 0042-6857
    ISSN 0042-6857
    DOI 10.2222/jsv.72.67
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  10. Article: Elderly-onset calcinosis of hyperphosphataemic familial tumoural calcinosis/hyperostosis-hyperphosphataemia syndrome: the role of comorbid scleroderma.

    Iwasaki, Hiroaki

    Endocrinology, diabetes & metabolism case reports

    2023  Volume 2023, Issue 4

    Abstract: ... for glycaemic control. Physical examination revealed two subcutaneous hard masses around the left shoulder and ...

    Abstract Summary: A 73-year-old woman with type 2 diabetes mellitus was referred to our department for glycaemic control. Physical examination revealed two subcutaneous hard masses around the left shoulder and the right hip joint. The patient could not fully extend her fingers because of skin sclerosis in both hands. Laboratory studies showed hyperphosphataemia and a high ratio of renal tubular maximum reabsorption of phosphate to glomerular filtration rate. There were no abnormalities in serum calcium, creatinine, alkaline phosphatase, and intact parathyroid hormone levels, whereas serum fibroblast growth factor 23 was low. Hyperphosphataemic familial tumoural calcinosis/hyperostosis-hyperphosphataemia syndrome (HFTC/HHS) was diagnosed using whole genome sequencing that revealed a novel frameshift beyond the 584th threonine located in the lectin domain of UDP-N-acetyl-alpha-D-galactosamine:polypeptide N-acetylgalactosaminyltransferase 3 associated with a duplication of the 1748th thymine in the coding region of the corresponding gene. Furthermore, anti-nuclear, anti-centromere, and anti-cardiolipin antibodies were positive, implying that comorbid limited type scleroderma might play a role in tumoural calcinosis (TC) development. A low phosphate diet was prescribed with phosphate-lowering medications, including aluminium hydroxide, acetazolamide, and sevelamer hydrochloride. The patient displayed a decrease in serum phosphate levels from 6.5 to 5.5 mg/dL 10 months after the initiation of treatment, but her TC had not improved during treatment for more than 1 year. This case was interesting because the patient with HFTC/HHS exhibited TC despite being over her 60s, and subsequent scleroderma might contribute to the specific clinical course. When HFTC/HHS presents with elderly-onset TC, the involvement of comorbidities in exacerbating TC should be considered.
    Learning points: HFTC/HHS occurs on an autosomal recessive basis, but its clinical course and manifestations differ significantly throughout the cases. HFTC/HHS may be undiagnosed until later in life because of its rarity, unfamiliarity, and phenotype diversity; therefore, HFTC/HHS should be included in the differential diagnosis of elderly patients with unexplained hyperphosphataemia or ectopic calcinosis. Comorbidities, including rheumatologic disorders, may contribute to developing HFTC/HHS-associated calcinosis.
    Language English
    Publishing date 2023-10-03
    Publishing country England
    Document type Journal Article
    ZDB-ID 2785530-2
    ISSN 2052-0573
    ISSN 2052-0573
    DOI 10.1530/EDM-23-0071
    Database MEDical Literature Analysis and Retrieval System OnLINE

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