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  1. Article ; Online: The ATPase activity of ABCA1 is increased by cholesterol in the presence of anionic lipids.

    Sakata, Kazuki / Kioka, Noriyuki / Ueda, Kazumitsu / Kimura, Yasuhisa

    Journal of biochemistry

    2024  

    Abstract: High-density lipoprotein (HDL) transports excess cholesterol from peripheral tissues back to the liver, and plasma HDL levels are inversely related to cardiovascular disease incidence. ATP-binding cassette A1 (ABCA1) is a member of the ABC protein ... ...

    Abstract High-density lipoprotein (HDL) transports excess cholesterol from peripheral tissues back to the liver, and plasma HDL levels are inversely related to cardiovascular disease incidence. ATP-binding cassette A1 (ABCA1) is a member of the ABC protein superfamily, and generates nascent HDL, which consists of several hundreds of phospholipids and cholesterol wrapped by apolipoprotein A-I (apoA-I). However, it remains unclear whether cholesterol is a transport substrate of ABCA1. Since ATP hydrolysis of ABC proteins is typically increased by their transport substrates, we characterized the effects of cholesterol on the ATPase activity of purified ABCA1 using liposomes of various lipid compositions. ABCA1 showed substantial ATPase activity (20-30 nmol∙min-1∙mg-1) only in liposomes containing anionic lipids, including phosphatidylserine. Cholesterol increased the ATPase activity by 1.6- to 3-fold in the presence of anionic lipids. Moreover, phosphatidylserine addition to BHK/ABCA1 cells increased phosphatidylcholine and cholesterol efflux to apoA-I. Next, we investigated the sterol specificity of ABCA1. The ATPase activity of ABCA1 was strongly enhanced by desmosterol and zymosterol, similar to cholesterol. In contrast, 7-dehydrocholesterol and lathosterol weakly increased the ATPase activity, and no increase was observed with stigmasterol or brassicasterol. These findings suggest that ABCA1 transports cholesterol, and prefers cholesterol over plant sterols as a transport substrate.
    Language English
    Publishing date 2024-01-12
    Publishing country England
    Document type Journal Article
    ZDB-ID 218073-x
    ISSN 1756-2651 ; 0021-924X
    ISSN (online) 1756-2651
    ISSN 0021-924X
    DOI 10.1093/jb/mvae003
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Significance of atypical nodules upgraded to category 3 in Prostate Imaging Reporting and Data System version 2.1 for prostate cancer diagnosis.

    Asai, Shintaro / Kobayashi, Masaki / Fukuda, Shohei / Kimura, Koichiro / Yoshida, Soichiro / Fujii, Yasuhisa

    International journal of urology : official journal of the Japanese Urological Association

    2024  

    Language English
    Publishing date 2024-02-12
    Publishing country Australia
    Document type Journal Article
    ZDB-ID 1328401-0
    ISSN 1442-2042 ; 0919-8172
    ISSN (online) 1442-2042
    ISSN 0919-8172
    DOI 10.1111/iju.15421
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Efficacy of Sac Coil Embolization in Endovascular Aortic Repair for Sac Shrinkage in Patients at a High Risk of Type II Endoleak from Lumbar Arteries.

    Nishijima, Takuya / Oishi, Yasuhisa / Kimura, Satoshi / Kan-O, Meikun / Shiose, Akira

    Annals of vascular surgery

    2024  Volume 103, Page(s) 122–132

    Abstract: Background: In endovascular aortic repair (EVAR), preemptive embolization of sac branch vessels is effective in preventing postoperative type II endoleak (T2EL). However, this technique has not been widely adopted especially for lumbar arteries (LAs) ... ...

    Abstract Background: In endovascular aortic repair (EVAR), preemptive embolization of sac branch vessels is effective in preventing postoperative type II endoleak (T2EL). However, this technique has not been widely adopted especially for lumbar arteries (LAs) because of technical difficulties and time constraints. This study aimed to investigate the efficacy of nonselective sac coil embolization, which is a simpler surgical method, in postoperative sac shrinkage for patients at a high risk of T2EL from LAs.
    Methods: We retrospectively assessed 76 patients who underwent elective EVAR for abdominal aortic aneurysm with 4 or more patent LAs or at least 1 patent LA of ≥2 mm at our hospital between January 2014 and December 2022. The patients who underwent sac coil embolization were included in Group Ⅰ (n = 20), and the others were divided into 2 groups: those with an inferior mesenteric artery that was originally occluded or embolized by coils or stent graft bodies (Group Ⅱ, n = 21), and those without that (Group Ⅲ, n = 35). In Group Ⅰ, 0.035-inch coils were inserted into the sac after complete stent graft deployment. The cumulative incidence of sac shrinkage (≥5 mm) was compared between the groups. Further, univariable and multivariable Cox regression analyses were used to determine the predictors of sac shrinkage.
    Results: Sac shrinkage (≥5 mm) was observed more frequently in Group Ⅰ (50%) than in Group Ⅱ (19%) and Group Ⅲ (17%) (P = 0.052 and 0.043, respectively). The cumulative incidence of sac shrinkage was significantly higher in Group Ⅰ than in Group Ⅱ (log-rank P = 0.039) and Group Ⅲ (log-rank P = 0.024). Multivariable Cox regression analyses revealed that sac embolization was a significant predictor of sac shrinkage (hazard ratio, 4.23; 95% confidence interval, 1.66-10.8; P = 0.003).
    Conclusions: Nonselective sac coil embolization in EVAR is potentially effective for sac shrinkage in the early postoperative phase in patients at high risk of T2EL from LAs. This simple procedure may improve prognosis after EVAR.
    Language English
    Publishing date 2024-02-20
    Publishing country Netherlands
    Document type Journal Article
    ZDB-ID 1027366-9
    ISSN 1615-5947 ; 0890-5096
    ISSN (online) 1615-5947
    ISSN 0890-5096
    DOI 10.1016/j.avsg.2023.12.069
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Texture feature analysis using dynamic computed tomography for preoperative risk stratification in upper urinary tract urothelial carcinoma.

    Kaneko, Hiroki / Fujiwara, Motohiro / Tanaka, Hajime / Kimura, Koichiro / Yoshida, Soichiro / Fujii, Yasuhisa

    International journal of urology : official journal of the Japanese Urological Association

    2023  Volume 30, Issue 11, Page(s) 1056–1058

    MeSH term(s) Humans ; Carcinoma, Transitional Cell/diagnostic imaging ; Carcinoma, Transitional Cell/surgery ; Carcinoma, Transitional Cell/pathology ; Urinary Bladder Neoplasms/pathology ; Ureteral Neoplasms/diagnostic imaging ; Ureteral Neoplasms/surgery ; Ureteral Neoplasms/pathology ; Kidney Neoplasms/pathology ; Kidney Pelvis/pathology ; Risk Assessment ; Tomography ; Retrospective Studies ; Urinary Tract ; Urologic Neoplasms/diagnostic imaging ; Urologic Neoplasms/surgery ; Urologic Neoplasms/pathology
    Language English
    Publishing date 2023-07-18
    Publishing country Australia
    Document type Journal Article
    ZDB-ID 1328401-0
    ISSN 1442-2042 ; 0919-8172
    ISSN (online) 1442-2042
    ISSN 0919-8172
    DOI 10.1111/iju.15253
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article: Single-Stage Hybrid Arch Repair for Patients with Shaggy Aorta.

    Oishi, Yasuhisa / Kimura, Satoshi / Sonoda, Hiromichi / Shiose, Akira

    Aorta (Stamford, Conn.)

    2020  Volume 7, Issue 6, Page(s) 176–178

    Abstract: Operating on extended arch aneurysms that contain severe atherosclerotic plaques is difficult. In such cases, the incidence of intraoperative multiple embolization is very high. We applied single-stage hybrid arch repair, which involved ascending aorta ... ...

    Abstract Operating on extended arch aneurysms that contain severe atherosclerotic plaques is difficult. In such cases, the incidence of intraoperative multiple embolization is very high. We applied single-stage hybrid arch repair, which involved ascending aorta replacement and debranching of arch vessels, consecutively with endovascular repair for two patients. This technique was developed to prevent embolization of atherosclerotic plaques during cardiopulmonary bypass, and abrasion of the plaques during thoracic endovascular repair. Both patients recovered without embolic complications.
    Language English
    Publishing date 2020-02-12
    Publishing country Germany
    Document type Journal Article
    ISSN 2325-4637
    ISSN 2325-4637
    DOI 10.1055/s-0039-3401996
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: Stepwise algorithm using computed tomography and magnetic resonance imaging for differential diagnosis of fat-poor angiomyolipoma in small renal masses: A prospective validation study.

    Toide, Masahiro / Tanaka, Hajime / Kobayashi, Masaki / Fujiwara, Motohiro / Nakamura, Yuki / Fukuda, Shohei / Kimura, Koichiro / Waseda, Yuma / Yoshida, Soichiro / Tateishi, Ukihide / Fujii, Yasuhisa

    International journal of urology : official journal of the Japanese Urological Association

    2024  

    Abstract: Objectives: To validate the diagnostic accuracy of a stepwise algorithm to differentiate fat-poor angiomyolipoma (fp-AML) from renal cancer in small renal masses (SRMs).: Methods: We prospectively enrolled 223 patients with solid renal masses <4 cm ... ...

    Abstract Objectives: To validate the diagnostic accuracy of a stepwise algorithm to differentiate fat-poor angiomyolipoma (fp-AML) from renal cancer in small renal masses (SRMs).
    Methods: We prospectively enrolled 223 patients with solid renal masses <4 cm and no visible fat on unenhanced computed tomography (CT). Patients were assessed using an algorithm that utilized the dynamic CT and MRI findings in a stepwise manner. The diagnostic accuracy of the algorithm was evaluated in patients whose histology was confirmed through surgery or biopsy. The clinical course of the patients was further analyzed.
    Results: The algorithm classified 151 (68%)/42 (19%)/30 (13%) patients into low/intermediate/high AML probability groups, respectively. Pathological diagnosis was made for 183 patients, including 10 (5.5%) with fp-AML. Of these, 135 (74%)/36 (20%)/12 (6.6%) were classified into the low/intermediate/high AML probability groups, and each group included 1 (0.7%)/3 (8.3%)/6 (50%) fp-AMLs, respectively, leading to the area under the curve for predicting AML of 0.889. Surgery was commonly opted in the low and intermediate AML probability groups (84% and 64%, respectively) for initial management, while surveillance was selected in the high AML probability group (63%). During the 56-month follow-up, 36 (82%) of 44 patients initially surveyed, including 13 of 18 (72%), 6 of 7 (86%), and 17 of 19 (89%) in the low/intermediate/high AML probability groups, respectively, continued surveillance without any progression.
    Conclusions: This study confirmed the high diagnostic accuracy for differentiating fp-AMLs. These findings may help in the management of patients with SRMs.
    Language English
    Publishing date 2024-04-17
    Publishing country Australia
    Document type Journal Article
    ZDB-ID 1328401-0
    ISSN 1442-2042 ; 0919-8172
    ISSN (online) 1442-2042
    ISSN 0919-8172
    DOI 10.1111/iju.15464
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: Electronic patient-reported outcome (e-PRO) monitoring for adverse event management during cabozantinib treatment in patients with advanced renal cell carcinoma

    Yoji Nagashima / Hiroshi Kitamura / Yasuhisa Fujii / Takahiro Osawa / Go Kimura / Sakura Iizumi / Tsuyoshi Osaka / Ryoichi Tsubouchi / Nobuo Shinohara

    BMJ Open, Vol 13, Iss

    protocol for a three-arm, randomised, multicentre phase II trial (e-PRO vs paper-PRO or usual care)

    2023  Volume 7

    Abstract: Introduction Cabozantinib monotherapy is an option for treatment of advanced renal cell carcinoma (RCC). However, cabozantinib dose modification and discontinuation due to symptomatic adverse events (AEs) remains a challenge. The use of patient-reported ... ...

    Abstract Introduction Cabozantinib monotherapy is an option for treatment of advanced renal cell carcinoma (RCC). However, cabozantinib dose modification and discontinuation due to symptomatic adverse events (AEs) remains a challenge. The use of patient-reported outcomes (PROs) may help manage symptomatic AEs, which is reported to lead to improved quality of life (QOL), avoidance of drug discontinuation and better survival. This study aims to investigate the clinical benefits of PROs in patients with RCC receiving cabozantinib and the most appropriate medium for PRO monitoring (electronic [e]-PRO or paper-PRO).Methods and analysis This study is being conducted at about 35 sites in Japan. Patients aged ≥18 years with unresectable or metastatic RCC initiating treatment with cabozantinib monotherapy are eligible and will be randomised to: (1) e-PRO monitoring, (2) paper-PRO monitoring or (3) usual care without PRO monitoring. Recruitment began in December 2021 (target sample size, 105). Patients start treatment with cabozantinib 60 mg once daily, and in the PRO groups, will record daily medication intake, weight, temperature, blood pressure and AEs. Endpoints include the proportion of patients with a ≥5-point deterioration on the Functional Assessment of Cancer Therapy-Kidney Cancer Symptom Index (FKSI-19; primary endpoint), progression-free survival, QOL, dose adjustments, relative dose intensity, treatment-emergent AEs and frequency of interventions for AEs outside of the scheduled visits. Patient and physician opinions of the PRO monitoring systems and patient compliance with e-PRO/paper-PRO input are also being measured.Ethics and dissemination The study is being conducted in compliance with the Declaration of Helsinki, the International Council for Harmonisation guidelines for Good Clinical Practice and the Clinical Trials Act. Written informed consent is being obtained from all patients, and the protocol has been approved by the Hokkaido University Hospital Certified Review Board (approval number, CRB021-005). The ...
    Keywords Medicine ; R
    Subject code 616
    Language English
    Publishing date 2023-07-01T00:00:00Z
    Publisher BMJ Publishing Group
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  8. Article ; Online: Electronic patient-reported outcome (e-PRO) monitoring for adverse event management during cabozantinib treatment in patients with advanced renal cell carcinoma: protocol for a three-arm, randomised, multicentre phase II trial (e-PRO vs paper-PRO or usual care).

    Osawa, Takahiro / Fujii, Yasuhisa / Kimura, Go / Kitamura, Hiroshi / Nagashima, Yoji / Iizumi, Sakura / Osaka, Tsuyoshi / Tsubouchi, Ryoichi / Shinohara, Nobuo

    BMJ open

    2023  Volume 13, Issue 7, Page(s) e070275

    Abstract: Introduction: Cabozantinib monotherapy is an option for treatment of advanced renal cell carcinoma (RCC). However, cabozantinib dose modification and discontinuation due to symptomatic adverse events (AEs) remains a challenge. The use of patient- ... ...

    Abstract Introduction: Cabozantinib monotherapy is an option for treatment of advanced renal cell carcinoma (RCC). However, cabozantinib dose modification and discontinuation due to symptomatic adverse events (AEs) remains a challenge. The use of patient-reported outcomes (PROs) may help manage symptomatic AEs, which is reported to lead to improved quality of life (QOL), avoidance of drug discontinuation and better survival. This study aims to investigate the clinical benefits of PROs in patients with RCC receiving cabozantinib and the most appropriate medium for PRO monitoring (electronic [e]-PRO or paper-PRO).
    Methods and analysis: This study is being conducted at about 35 sites in Japan. Patients aged ≥18 years with unresectable or metastatic RCC initiating treatment with cabozantinib monotherapy are eligible and will be randomised to: (1) e-PRO monitoring, (2) paper-PRO monitoring or (3) usual care without PRO monitoring. Recruitment began in December 2021 (target sample size, 105). Patients start treatment with cabozantinib 60 mg once daily, and in the PRO groups, will record daily medication intake, weight, temperature, blood pressure and AEs. Endpoints include the proportion of patients with a ≥5-point deterioration on the Functional Assessment of Cancer Therapy-Kidney Cancer Symptom Index (FKSI-19; primary endpoint), progression-free survival, QOL, dose adjustments, relative dose intensity, treatment-emergent AEs and frequency of interventions for AEs outside of the scheduled visits. Patient and physician opinions of the PRO monitoring systems and patient compliance with e-PRO/paper-PRO input are also being measured.
    Ethics and dissemination: The study is being conducted in compliance with the Declaration of Helsinki, the International Council for Harmonisation guidelines for Good Clinical Practice and the Clinical Trials Act. Written informed consent is being obtained from all patients, and the protocol has been approved by the Hokkaido University Hospital Certified Review Board (approval number, CRB021-005). The results will be presented at conferences and submitted to a peer-reviewed journal.
    Trial registration number: jRCTs011210055.
    MeSH term(s) Humans ; Adolescent ; Adult ; Carcinoma, Renal Cell/drug therapy ; Quality of Life ; Kidney Neoplasms/drug therapy ; Kidney Neoplasms/pathology ; Patient Reported Outcome Measures ; Treatment Outcome ; Randomized Controlled Trials as Topic ; Multicenter Studies as Topic ; Clinical Trials, Phase II as Topic
    Chemical Substances cabozantinib (1C39JW444G)
    Language English
    Publishing date 2023-07-26
    Publishing country England
    Document type Clinical Trial Protocol ; Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2599832-8
    ISSN 2044-6055 ; 2044-6055
    ISSN (online) 2044-6055
    ISSN 2044-6055
    DOI 10.1136/bmjopen-2022-070275
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article ; Online: Impact of AI system on recognition for anatomical landmarks related to reducing bile duct injury during laparoscopic cholecystectomy.

    Endo, Yuichi / Tokuyasu, Tatsushi / Mori, Yasuhisa / Asai, Koji / Umezawa, Akiko / Kawamura, Masahiro / Fujinaga, Atsuro / Ejima, Aika / Kimura, Misako / Inomata, Masafumi

    Surgical endoscopy

    2023  Volume 37, Issue 7, Page(s) 5752–5759

    Abstract: Background: According to the National Clinical Database of Japan, the incidence of bile duct injury (BDI) during laparoscopic cholecystectomy has hovered around 0.4% for the last 10 years and has not declined. On the other hand, it has been found that ... ...

    Abstract Background: According to the National Clinical Database of Japan, the incidence of bile duct injury (BDI) during laparoscopic cholecystectomy has hovered around 0.4% for the last 10 years and has not declined. On the other hand, it has been found that about 60% of BDI occurrences are due to misidentifying anatomical landmarks. However, the authors developed an artificial intelligence (AI) system that gave intraoperative data to recognize the extrahepatic bile duct (EHBD), cystic duct (CD), inferior border of liver S4 (S4), and Rouviere sulcus (RS). The purpose of this research was to evaluate how the AI system affects landmark identification.
    Methods: We prepared a 20-s intraoperative video before the serosal incision of Calot's triangle dissection and created a short video with landmarks overwritten by AI. The landmarks were defined as landmark (LM)-EHBD, LM-CD, LM-RS, and LM-S4. Four beginners and four experts were recruited as subjects. After viewing a 20-s intraoperative video, subjects annotated the LM-EHBD and LM-CD. Then, a short video is shown with the AI overwriting landmark instructions; if there is a change in each perspective, the annotation is changed. The subjects answered a three-point scale questionnaire to clarify whether the AI teaching data advanced their confidence in verifying the LM-RS and LM-S4. Four external evaluation committee members investigated the clinical importance.
    Results: In 43 of 160 (26.9%) images, the subjects transformed their annotations. Annotation changes were primarily observed in the gallbladder line of the LM-EHBD and LM-CD, and 70% of these shifts were considered safer changes. The AI-based teaching data encouraged both beginners and experts to affirm the LM-RS and LM-S4.
    Conclusion: The AI system provided significant awareness to beginners and experts and prompted them to identify anatomical landmarks linked to reducing BDI.
    MeSH term(s) Humans ; Cholecystectomy, Laparoscopic/adverse effects ; Cholecystectomy, Laparoscopic/methods ; Artificial Intelligence ; Bile Duct Diseases ; Bile Ducts, Extrahepatic/surgery ; Cystic Duct ; Abdominal Injuries ; Bile Ducts/injuries
    Language English
    Publishing date 2023-06-26
    Publishing country Germany
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 639039-0
    ISSN 1432-2218 ; 0930-2794
    ISSN (online) 1432-2218
    ISSN 0930-2794
    DOI 10.1007/s00464-023-10224-5
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article ; Online: Considering bone health in the treatment of prostate cancer bone metastasis based on the results of the ERA-223 trial.

    Mizokami, Atsushi / Kimura, Go / Fujii, Yasuhisa / Hinotsu, Shiro / Izumi, Kouji

    International journal of clinical oncology

    2019  Volume 24, Issue 12, Page(s) 1629–1631

    MeSH term(s) Abiraterone Acetate ; Bone Density ; Bone Neoplasms ; Double-Blind Method ; Humans ; Male ; Prednisolone ; Prednisone ; Prostatic Neoplasms ; Prostatic Neoplasms, Castration-Resistant ; Radium
    Chemical Substances Radium-223 (8BR2SOL3L1) ; Prednisolone (9PHQ9Y1OLM) ; Abiraterone Acetate (EM5OCB9YJ6) ; Prednisone (VB0R961HZT) ; Radium (W90AYD6R3Q)
    Language English
    Publishing date 2019-09-03
    Publishing country Japan
    Document type Letter ; Comment
    ZDB-ID 1400227-9
    ISSN 1437-7772 ; 1341-9625
    ISSN (online) 1437-7772
    ISSN 1341-9625
    DOI 10.1007/s10147-019-01518-7
    Database MEDical Literature Analysis and Retrieval System OnLINE

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