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Ooi H, Asai Y, Sato Y. Risk evaluation of ampicillin/sulbactam-induced liver injury based on albumin-bilirubin score. J Infect Chemother 2023:S1341-321X(23)00140-X. [PMID: 37301371 DOI: 10.1016/j.jiac.2023.06.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Revised: 05/29/2023] [Accepted: 06/02/2023] [Indexed: 06/12/2023]
Abstract
BACKGROUND Drug-induced liver injury (DILI) is an adverse reaction caused by ampicillin/sulbactam (ABPC/SBT). The albumin-bilirubin (ALBI) score is an index of hepatic functional reserve. However, the relationship between ABPC/SBT-induced DILI and ALBI score remains unknown; therefore, we aimed to elucidate the risk of ABPC/SBT-induced DILI based on the ALBI score. METHODS This was a single-center, retrospective, case-control study using electronic medical records. A total of 380 patients were enrolled in the present study, and the primary outcome was ABPC/SBT-induced DILI. The ALBI score was calculated using serum albumin and total bilirubin levels. In addition, we performed COX regression analysis using age ≥75 years, dose ≥9 g/day, alanine aminotransferase (ALT) ≥21 IU/L, and ALBI score ≥-2.00 as covariates. We also performed 1:1 propensity score matching between non-DILI and DILI groups. RESULTS The incidence of DILI was 9.5% (36/380). According to COX regression analysis, the adjusted hazard ratio for ABPC/SBT-induced DILI with an ALBI score ≥-2.00 was 2.55 (95% confidence interval: 1.256-5.191, P = 0.010), suggesting that patients with baseline ALBI score ≥-2.00 may be at high risk for ABPC/SBT-induced DILI. However, significant differences were not observed in cumulative risk for DILI between non-DILI and DILI patients regarding an ALBI score ≥-2.00 after propensity score matching (P = 0.146). CONCLUSION These findings suggest that ALBI score may be a simple and potentially useful index for predicting ABPC/SBT-induced DILI. In patients with an ALBI score ≥-2.00, frequent liver function monitoring should be considered to prevent ABPC/SBT-induced DILI.
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Affiliation(s)
- Hayahide Ooi
- Pharmacy, National Hospital Organization Mie Chuo Medical Center, 2158-5 Hisaimyojincho, Tsu, Mie, 514-1101, Japan.
| | - Yuki Asai
- Pharmacy, National Hospital Organization Mie Chuo Medical Center, 2158-5 Hisaimyojincho, Tsu, Mie, 514-1101, Japan.
| | - Yoshiharu Sato
- Pharmacy, National Hospital Organization Mie Chuo Medical Center, 2158-5 Hisaimyojincho, Tsu, Mie, 514-1101, Japan
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Elkholey K, Schlendorf K, Biaggioni I, Amancherla K, Brinkley D, Lindenfeld J, Menachem J, Ooi H, Pedrotty D, Punnoose L, Rali A, Sacks S, Wigger M, Zalawadiya S, Siddiqi H. Outcomes and Characteristics of Heart Transplant Recipients Requiring Oral Vasopressor Agents. J Heart Lung Transplant 2023. [DOI: 10.1016/j.healun.2023.02.759] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/05/2023] Open
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Pasrija C, DeBose-Scarlett A, Keck C, Scholl S, Siddiqi H, Amancherla K, Brinkley D, Lindenfeld J, Menachem J, Ooi H, Pedrotty D, Punnoose L, Rali A, Sacks S, Wigger M, Zalawadiya S, McMaster W, Shah A, Schlendorf K, Trahanas J. Prolonged Warm Ischemic Time is Safe for Cardiac Donation after Circulatory Death. J Heart Lung Transplant 2023. [DOI: 10.1016/j.healun.2023.02.208] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/05/2023] Open
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Siddiqi H, DeBose-Scarlett A, Trahanas J, Pasrija C, Amancherla K, Brinkley D, Lindenfeld J, Menachem J, Ooi H, Pedrotty D, Punnoose L, Rali A, Sacks S, Wigger M, Zalawadiya S, McMaster W, Shah A, Schlendorf K. Characteristics and Outcomes Among Recipients of Dcd Versus Dbd Heart Transplantation - The Vanderbilt Experience. J Heart Lung Transplant 2023. [DOI: 10.1016/j.healun.2023.02.1609] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/05/2023] Open
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Trahanas J, DeBose-Scarlett A, Siddiqi H, Amancherla K, Brinkley D, Lindenfeld J, Menachem J, Ooi H, Pedrotty D, Punnoose L, Rali A, Sacks S, Wigger M, Zalawadiya S, Hoffman J, McMaster W, Shah A, Schlendorf K, Pasrija C. Normothermic Regional Perfusion Versus Direct Procurement and Preservation: Is There a Difference for DCD Heart Recipients? J Heart Lung Transplant 2023. [DOI: 10.1016/j.healun.2023.02.157] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/05/2023] Open
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Asai Y, Ooi H, Sato Y. Risk evaluation of carbapenem-induced liver injury based on machine learning analysis. J Infect Chemother 2023; 29:660-666. [PMID: 36914094 DOI: 10.1016/j.jiac.2023.03.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Revised: 03/06/2023] [Accepted: 03/09/2023] [Indexed: 03/13/2023]
Abstract
INTRODUCTION Information regarding carbapenem-induced liver injury is limited, and the rate of liver injury caused by meropenem (MEPM) and doripenem (DRPM) remains unknown. Decision tree (DT) analysis, a machine learning method, has a flowchart-like model where users can easily predict the risk of liver injury. Thus, we aimed to compare the rate of liver injury between MEPM and DRPM and construct a flowchart that can be used to predict carbapenem-induced liver injury. METHODS We investigated patients treated with MEPM (n = 310) or DRPM (n = 320) and confirmed liver injury as the primary outcome. We used a chi-square automatic interaction detection algorithm to construct DT models. The dependent variable was set as liver injury from a carbapenem (MEPM or DRPM), and factors including alanine aminotransferase (ALT), albumin-bilirubin (ALBI) score, and concomitant use of acetaminophen were used as explanatory variables. RESULTS The rates of liver injury were 22.9% (71/310) and 17.5% (56/320) in the MEPM and DRPM groups, respectively; no significant differences in the rate were observed (95% confidence interval: 0.710-1.017). Although the DT model of MEPM could not be constructed, DT analysis showed that the incidence of introducing DRPM in patients with ALT >22 IU/L and ALBI scores > -1.87 might be high-risk. CONCLUSIONS The risk of developing liver injury did not differ significantly between the MEPM and DRPM groups. Since ALT and ALBI score are evaluated in clinical settings, this DT model is convenient and potentially useful for medical staff in assessing liver injury before DRPM administration.
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Affiliation(s)
- Yuki Asai
- Pharmacy, National Hospital Organization Mie Chuo Medical Center, 2158-5 Hisaimyojin, Tsu, Mie, 514-1101, Japan.
| | - Hayahide Ooi
- Pharmacy, National Hospital Organization Mie Chuo Medical Center, 2158-5 Hisaimyojin, Tsu, Mie, 514-1101, Japan
| | - Yoshiharu Sato
- Pharmacy, National Hospital Organization Mie Chuo Medical Center, 2158-5 Hisaimyojin, Tsu, Mie, 514-1101, Japan
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Ooi H, Koriyama Y. Toxic Advanced Glycation End-Products-Dependent Alzheimer's Disease- Like Alternation in the Microtubule System. Curr Alzheimer Res 2023; 20:677-681. [PMID: 38357957 DOI: 10.2174/0115672050288723240213053342] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2023] [Revised: 01/31/2024] [Accepted: 01/31/2024] [Indexed: 02/16/2024]
Abstract
Type 2 diabetes mellitus (T2DM) is a risk factor for Alzheimer's Disease (AD). However, the detailed mechanism underlying T2DM-related AD remains unknown. In DM, many types of advanced glycation end-products (AGEs) are formed and accumulated. In our previous study, we demonstrated that Glyceraldehyde (GA)-derived Toxic Advanced Glycation End-products (Toxic AGEs, TAGE) strongly showed cytotoxicity against neurons and induced similar alterations to those observed in AD. Further, GA induced dysfunctional neurite outgrowth via TAGE-β-- tubulin aggregation, which resulted in the TAGE-dependent abnormal aggregation of β-tubulin and tau phosphorylation. Herein, we provide a perspective on the possibility that T2DM increases the probability of AD onset and accelerates its progression.
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Affiliation(s)
- Hayahide Ooi
- Graduate School and Faculty of Pharmaceutical Sciences, Suzuka University of Medical Science, 3500-3 Minamitamagaki, Suzuka 513-8670, Japan
| | - Yoshiki Koriyama
- Graduate School and Faculty of Pharmaceutical Sciences, Suzuka University of Medical Science, 3500-3 Minamitamagaki, Suzuka 513-8670, Japan
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Ooi H, Asai Y, Koriyama Y, Takahashi M. Effect of Ceftriaxone Dosage and Albumin-Bilirubin Score on the Risk of Ceftriaxone-Induced Liver Injury. Biol Pharm Bull 2023; 46:1731-1736. [PMID: 38044131 DOI: 10.1248/bpb.b23-00469] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/05/2023]
Abstract
The albumin-bilirubin (ALBI) score is an index of hepatic functional reserve and is calculated from serum albumin and total bilirubin levels. However, the relationship between ceftriaxone (CTRX)-induced liver injury and ALBI score remains unknown. Therefore, we aimed to elucidate the risk of CTRX-induced liver injury based on the ALBI scores and CTRX dosage. This was a single-center, retrospective, case-control study of 490 patients and the primary outcome was CTRX-induced liver injury. We performed a COX regression analysis using age ≥75 years, male sex, alanine aminotransferase levels, ALBI score, and CTRX dosage regimen (4 ≥2 or 1 g/d) as explanatory factors. We also performed 1 : 1 propensity score matching between non-liver injury and liver injury groups. The incidence of liver injury was 10.0% (49/490). In COX regression analysis, CTRX 4 g/d was an independent risk factor for liver injury (95% coefficient interval: 1.05-6.96, p = 0.04). Meanwhile, ALBI score ≥-1.61 was an independent factor for liver injury (95% coefficient interval: 1.03-3.22, p = 0.04) with the explanatory factor of ≥2 and 1 g/d. The Kaplan-Meier curve indicated that the cumulative risk for CTRX-induced liver injury was significantly higher in the ALBI score ≥-1.61 group than in the ALBI score <-1.61 group before propensity score matching (p = 0.032); however, no significant differences were observed after propensity score matching (p = 0.791). These findings suggest that in patients treated with CTRX with ALBI score ≥-1.61, frequent liver function monitoring should be considered.
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Affiliation(s)
- Hayahide Ooi
- Pharmacy, National Hospital Organization Mie Chuo Medical Center
| | - Yuki Asai
- Pharmacy, National Hospital Organization Mie Chuo Medical Center
| | - Yoshiki Koriyama
- Graduate School and Faculty of Pharmaceutical Sciences, Suzuka University of Medical Science
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Ooi H, Nasu R, Furukawa A, Takeuchi M, Koriyama Y. Pyridoxamine and Aminoguanidine Attenuate the Abnormal Aggregation of β-Tubulin and Suppression of Neurite Outgrowth by Glyceraldehyde-Derived Toxic Advanced Glycation End-Products. Front Pharmacol 2022; 13:921611. [PMID: 35721214 PMCID: PMC9204210 DOI: 10.3389/fphar.2022.921611] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2022] [Accepted: 05/13/2022] [Indexed: 01/03/2023] Open
Abstract
Diabetes mellitus (DM) has been identified as a risk factor for the onset and progression of Alzheimer’s disease (AD). In our previous study, we demonstrated that glyceraldehyde (GA)-derived toxic advanced glycation end-products (toxic AGEs, TAGE) induced similar alterations to those observed in AD. GA induced dysfunctional neurite outgrowth via TAGE-β-tubulin aggregation, which resulted in the TAGE-dependent abnormal aggregation of β-tubulin and tau phosphorylation in human neuroblastoma SH-SY5Y cells. However, the effects of inhibitors of AGE formation on dysfunctional neurite outgrowth caused by GA-induced abnormalities in the aggregation of β-tubulin and tau phosphorylation remain unknown. Aminoguanidine (AG), an AGE inhibitor, and pyridoxamine (PM), a natural form of vitamin B6 (VB6), are effective AGE inhibitors. Therefore, the present study investigated whether AG or PM ameliorate TAGE-β-tubulin aggregation and the suppression of neurite outgrowth by GA. The results obtained showed that AG and PM inhibited the formation of TAGE-β-tubulin, mitigated the GA-induced suppression of neurite outgrowth, and reduced GA-mediated increases in tau phosphorylation levels. Collectively, these results suggest the potential of AG and PM to prevent the DM-associated onset and progression of AD.
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Affiliation(s)
- Hayahide Ooi
- Graduate School and Faculty of Pharmaceutical Sciences, Suzuka University of Medical Science, Suzuka, Japan
| | - Ryuto Nasu
- Graduate School and Faculty of Pharmaceutical Sciences, Suzuka University of Medical Science, Suzuka, Japan
| | - Ayako Furukawa
- Graduate School and Faculty of Pharmaceutical Sciences, Suzuka University of Medical Science, Suzuka, Japan
| | - Masayoshi Takeuchi
- Department of Advanced Medicine, Medical Research Institute, Kanazawa Medical University, Uchinada-machi, Japan
| | - Yoshiki Koriyama
- Graduate School and Faculty of Pharmaceutical Sciences, Suzuka University of Medical Science, Suzuka, Japan
- *Correspondence: Yoshiki Koriyama,
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Choudhary A, Sandhaus E, Zalawadiya S, Schwartz C, Ruzevich-Scholl S, Dutton A, Wigger M, Brinkley D, Menachem J, Shah A, Balsara K, Punnoose L, Sacks S, Ooi H, Pedrotty D, Hoffman J, McMaster W, Nguyen D, Lindenfeld J, Schlendorf K. Demographics and Utilization of Hepatitis C Hearts: A Single Center Experience. J Heart Lung Transplant 2022. [DOI: 10.1016/j.healun.2022.01.413] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
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Davis J, Salih M, Cluckey A, Rega S, Feurer I, Shah A, Brinkley M, Lindenfeld J, Menachem J, Ooi H, Pedrotty D, Punnoose L, Sacks S, Wigger M, Zalawadiya S, Balsara K, McMaster W, Hoffman J, Nguyen D, Schlendorf K. Impact of Donor-Transmitted Hepatitis C Virus on Development of Early Cardiac Allograft Vasculopathy in the Current Era. J Heart Lung Transplant 2022. [DOI: 10.1016/j.healun.2022.01.300] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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Zalawadiya S, Fossey S, Brinkley D, Harrison K, Tunney R, Sandhaus E, Schwartz C, Wigger M, Menachem J, Ooi H, Pedrotty D, Punnoose L, Brown Sacks S, Ray C, Hassler J, Rechel K, Rali A, Siddiqi H, Balsara K, McMaster W, Nguyen D, Hoffman J, Shah A, Lindenfeld J, Schlendorf K. Desensitization Therapy Among Highly Sensitized LVAD Patients. J Heart Lung Transplant 2022. [DOI: 10.1016/j.healun.2022.01.1644] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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Patel V, Dholaria B, Jayani R, Sengsayadeth S, Wigger M, Horst S, Lindenfeld J, Schlendorf K, Ooi H, Brinkley M, Zalawadiya S, Pedrotty D, Hoffman J, Hung R, Goodman S, Savani B, Kassim A, Harrell S, Punnoose L. Long Term Hematologic and Graft Outcomes After Cardiac Transplant in Al Amyloidosis. J Heart Lung Transplant 2022. [DOI: 10.1016/j.healun.2022.01.1649] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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Zalawadiya S, Lindenfeld J, Shah A, Menachem J, Balsara K, Hoffman J, Brinkley D, Rali A, Punnoose L, Wigger M, Sacks SB, Ooi H, Pedrotty D, Siddiqi H, McMaster W, Nguyen D, Schlendorf K. Heart-Kidney Transplantation and Hepatitis C Virus Positive Donors. J Heart Lung Transplant 2022. [DOI: 10.1016/j.healun.2022.01.066] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
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Zalawadiya S, Schlendorf K, Wigger M, Shah A, Brinkley M, Menachem J, Punnoose L, Sacks SB, Ooi H, Hoffman J, Keki B, McMaster W, Frobes R, Concepcion B, Lindenfeld J. Size Matching and Combined Heart Kidney Transplantation - UNOS Registry Analysis. J Heart Lung Transplant 2021. [DOI: 10.1016/j.healun.2021.01.767] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
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Schlendorf K, Zalawadiya S, Shah A, Perri R, Wigger M, Brinkley M, Menachem J, Punnoose L, Sacks SB, Ooi H, Danter M, Balsara K, Hoffman J, Awad J, Sandhaus E, Schwartz C, Lindenfeld J. Successful Transplantation of 96 Hepatitis C-positive Donor Hearts in the Era of Direct-Acting Antiviral Therapies. J Heart Lung Transplant 2020. [DOI: 10.1016/j.healun.2020.01.998] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
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Gupta R, Schlendorf K, Shah A, Punnoose L, Marvin-Peek J, Brinkley D, Menachem J, Wigger M, Sacks S, Ooi H, Balsara K, Hoffman J, Lindenfeld J, Zalawadiya S. Trends in MELD-XI between Listing and Transplant are Associated with Poor Outcomes in Heart Transplant Recipients with Stage 3 Chronic Kidney Disease. J Heart Lung Transplant 2020. [DOI: 10.1016/j.healun.2020.01.553] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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Foley N, Hardin M, Park B, Rahaman Z, Huang S, Kelly K, Ooi H, Danter M, Wigger M, Shah A, Balsara K. Veteran Affairs Partnership Improves Access to High Volume, Quality Heart Transplant Programs. It Ain't Broke! J Heart Lung Transplant 2020. [DOI: 10.1016/j.healun.2020.01.440] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
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Gupta R, Punnoose L, Marvin-Peek J, Schlendorf K, Shah A, Brinkley D, Menachem J, Wigger M, Sacks S, Ooi H, Balsara K, Hoffman J, Lindenfeld J, Zalawadiya S. Blood Urea Nitrogen to Creatinine Ratio at Listing is Associated with Poor Outcomes in Heart Transplant Recipients with Stage 3 Chronic Kidney Disease. J Heart Lung Transplant 2020. [DOI: 10.1016/j.healun.2020.01.547] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
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Sandhaus E, Menachem J, Schwartz C, Scholl S, Dutton A, Wigger M, Brinkley M, Zalawadiya S, Shah A, Danter M, Balsara K, Punnoose L, Sacks S, Ooi H, Lindenfeld J, Diamant M, Schlendorf K. Impact of the Revised Heart Allocation System at a Large Volume Center. J Heart Lung Transplant 2020. [DOI: 10.1016/j.healun.2020.01.744] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
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Sandhaus E, Zalawadiya S, Schwartz C, Ruzevich-Scholl S, Dutton A, Wigger M, Brinkley M, Menachem J, Shah A, Danter M, Balsara K, Punnoose L, Sacks S, Ooi H, Lindenfeld J, Schlendorf K. Characteristics of Hepatitis C+ vs Hepatitis C- Donors. J Heart Lung Transplant 2019. [DOI: 10.1016/j.healun.2019.01.666] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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Zalawadiya S, Schlendorf K, Hanna P, Wigger M, Brinkley D, Menachem J, Shah A, Danter M, Balsara K, Punnoose L, Sacks SB, Ooi H, Lindenfeld J. Post-Transplant Trends in BNP Levels among Recipients of Heart versus Heart-Kidney Transplantation. J Heart Lung Transplant 2019. [DOI: 10.1016/j.healun.2019.01.1012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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Zalawadiya S, Lindenfeld J, Shah A, Wigger M, Danter M, Brinkley D, Menachem J, Punnoose L, Sacks SB, Ooi H, Balsara K, Perri R, Awad J, Smith S, Fowler R, O'Dell H, Darragh C, Ruzevich-Scholl S, Schlendorf K. Trends in Renal Function among Heart-Transplant Recipients of Donor-Derived Hepatitis C Virus. J Heart Lung Transplant 2019. [DOI: 10.1016/j.healun.2019.01.107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
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Chowdhury M, Schlendorf K, Zalawadiya S, Brinkley M, Wigger M, Menachem J, Ooi H, Punnoose L, Shah A, Danter M, Balsara K, Lindenfeld J. Incidence of Pancreatitis in Recipients of Hepatitis C Donor Hearts. J Heart Lung Transplant 2019. [DOI: 10.1016/j.healun.2019.01.785] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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Chowdhury M, Lindenfeld J, Shah A, Schlendorf K, Fredi J, Balsara K, Goel K, Danter M, Brinkley M, Wigger M, Ooi H, Punnoose L, Brown S, Menachem J, Zalawadiya S. Safety and Efficacy of Percutaneous Ventricular Assist Device Exclusion; a Review of Ten Cases. J Heart Lung Transplant 2019. [DOI: 10.1016/j.healun.2019.01.883] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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Zalawadiya S, Lindenfeld J, Shah A, Wigger M, Keebler M, Danter M, Brinkley M, Menachem J, Sacks S, Ooi H, Chung C, Perri R, Awad J, Smith S, Hayes R, Rueda Rios C, O’Dell H, Darragh C, Ruzevich-Scholl S, Schlendorf K. Trends in Renal Function Among Heart Transplant Recipients of Donors With Hepatitis C. J Heart Lung Transplant 2018. [DOI: 10.1016/j.healun.2018.01.477] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022] Open
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Moretz J, Lindenfeld J, Shah A, Wigger M, Schlendorf K, Keebler M, Danter M, Sacks S, Ooi H, Brinkley D, Zalawadiya S. Risk of Thromboembolic Events Among Heart Transplant Recipients Bridged with Durable Mechanical Circulatory Support Devices Receiving Anticoagulation Reversal Agents at Time of Transplant. J Heart Lung Transplant 2018. [DOI: 10.1016/j.healun.2018.01.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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Zalawadiya S, Lindenfeld J, Haddad E, Wigger M, Danter M, Keebler M, Brinkley M, Menachem J, Sacks S, Ooi H, Perri R, Chung C, Awad J, Smith S, Hayes R, O’Dell H, Darragh C, Ruzevich-Scholl S, Schlendorf K. Intracoronary Intimal Thickness in Recipients of Hepatitis C-Positive Donor Hearts. J Heart Lung Transplant 2018. [DOI: 10.1016/j.healun.2018.01.251] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022] Open
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Schlendorf K, Zalawadiya S, Shah A, Wigger M, Chung C, Danter M, Keebler M, Brinkley D, Menachem J, Brown Sacks S, Ooi H, Perri R, Awad J, Smith S, Hayes R, O'dell H, Darragh C, Carver A, Edmonds C, Ruzevich-Scholl S, Lindenfeld J. Early Outcomes Using Hepatitis C-Exposed Donors for Cardiac Transplantation in the Era of Effective Direct-Acting Antiviral Treatments. J Heart Lung Transplant 2018. [DOI: 10.1016/j.healun.2018.01.873] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022] Open
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Zalawadiya S, Keebler M, Shah A, Wigger M, Djunaidi M, Schlendorf K, Choi D, Ooi H, Brown-Sacks S, Haglund N, Danter M, Brinkley M, Lindenfeld J. Hemoglobin Level at 3 Months Post-Durable Mechanical Circulatory Support Device Implantation and Mortality. J Heart Lung Transplant 2017. [DOI: 10.1016/j.healun.2017.01.1233] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
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31
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Zalawadiya S, Lindenfeld J, Schlendorf K, Danter M, Djunaidi M, Wigger M, Shah A, Ooi H, Brown-Sacks S, Haglund N, Brinkley M, Keebler M. Effect of Pre-Durable Mechanical Circulatory Support Device Anemia on Post-Device Implant Mortality. J Heart Lung Transplant 2017. [DOI: 10.1016/j.healun.2017.01.1243] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
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Kawaguchi R, Tanase Y, Haruta S, Nagai A, Yoshida S, Furukawa N, Ooi H, Kobayashi K. Paclitaxel plus Carboplatin Chemotherapy for Primary Peritoneal Carcinoma: A Study of 22 Cases and Comparison with Stage III-IV Ovarian Serous Carcinoma. Case Rep Oncol 2012; 5:173-80. [PMID: 22666209 PMCID: PMC3364097 DOI: 10.1159/000338402] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
The aim of this study was to assess the clinical characteristics and outcome of patients with either primary peritoneal carcinoma (PPC) or ovarian serous carcinoma (OSC) treated with paclitaxel plus carboplatin chemotherapy. We retrospectively identified 22 PPC patients and 55 stage III–IV OSC patients treated between 2002 and 2007. After exploratory laparotomy, all patients received paclitaxel and carboplatin every 3 weeks, with the goal of optimal cytoreduction. There were no statistically significant differences between the PPC and OSC groups with regard to tumor stage, residual tumor after debulking surgery (initial or interval), serum cancer antigen (CA) 125 levels at diagnosis, and completion of first-line chemotherapy. The progression-free survival (PFS) durations were 12.7 months (95% CI, 6.3–18.5) in the patients with PPC and 15.9 months (95% CI, 13.3–18.5) in those with OSC (p = 0.016). However, the median survival durations were 26.5 months (95% CI, 14.6–38.3) in the patients with PPC and 38 months (95% CI, 23.8–53.8) in those with OSC (p = 0.188). Survival was longer for all patients whose CA125 levels normalized to 26 U/ml during and after treatment. Overall survival (OS) of the patients with PPC was similar to that of the patients with OSC, suggesting that management for advanced-stage OSC would be similar to that for PPC. The combination of optimal debulking with paclitaxel plus carboplatin chemotherapy may offer patients the most effective treatment. The CA125 nadir after cytoreductive surgery can be considered a prognostic factor for OS and PFS in patients with PPC.
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Affiliation(s)
- R Kawaguchi
- Department of Obstetrics and Gynecology, Nara Medical University, Kashihara, Japan
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Silverstein C, Naftilan A, DiSalvo T, Wigger M, Sawyer D, Ooi H. 568: Cumulative Pregnancies Increase Risk of Cardiac Transplant Rejection Requiring Treatment: An Analysis of the United Network for Organ Sharing Database. J Heart Lung Transplant 2009. [DOI: 10.1016/j.healun.2008.11.575] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
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Silverstein C, Naftilan A, DiSalvo T, Wigger M, Sawyer D, Ooi H. 273: The Panel-Reactive Antibody Paradox: PRA Class II Predicts Rejection within 1 Year but PRA Class I Predicts Graft Survival. J Heart Lung Transplant 2009. [DOI: 10.1016/j.healun.2008.11.280] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
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Biolo A, Matiwala S, Fitzgibbons T, Chung W, Palmisano J, Beal R, Vita J, Colucci W, Ooi H. 337: Increased Arterial Stiffness Contributes to Vascular Load in Acute Decompensated Heart Failure. J Heart Lung Transplant 2008. [DOI: 10.1016/j.healun.2007.11.347] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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Kobayashi H, Ooi H, Yamada Y, Sakata M, Kawaguchi R, Kanayama S, Sumimoto K, Terao T. Serum CA125 level before the development of ovarian cancer. Int J Gynaecol Obstet 2007; 99:95-9. [PMID: 17643440 DOI: 10.1016/j.ijgo.2007.06.003] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2006] [Revised: 05/31/2007] [Accepted: 06/04/2007] [Indexed: 10/23/2022]
Abstract
BACKGROUND Little is known about the natural history of ovarian cancer with respect to the change of serum CA125 level. METHODS The Shizuoka Cohort Study on Ovarian Cancer Screening (SCSOCS) Trial contains approximately 100,000 data on serum tumor marker CA125 prospectively obtained from more than 70,000 women. We reviewed the clinical charts and collected serum samples 2 months to 9.4 years prior to the surgery were available. RESULTS In 396 (95%) of the 419 patients with ovarian cancer, one serum sample was present before the diagnosis (mean, 4.1 years). The change of CA125 level before the diagnosis of ovarian cancer could be clearly separated into two groups according to the length of the following intervals: 47% (107/228) of patients with non-serous-type ovarian cancers develop secondarily from slightly elevated CA125 level (35 <CA125 <65 U/ml), with a mean interval of 3.8 years. On the other hand, 75% (126/168) of patients with serous-type ovarian cancer seem to develop suddenly from a normal CA125 level (CA125 <35 U/ml), with a mean interval of 1.4 years (p=0.011). CONCLUSIONS The slightly elevated CA125 level is typically present many years before the diagnosis especially in patients with non-serous-type ovarian cancer. However, serous-type ovarian cancer may exhibit a rapid progression possibly through de novo carcinogenesis.
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Affiliation(s)
- H Kobayashi
- Department of Obstetrics and Gynecology, Nara Medical University, Shijo-cho, Kashihara, Nara, Japan.
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Takada T, Suzuki E, Ishida T, Moriyama H, Ooi H, Hasegawa T, Tsukuda H, Gejyo F. Polymorphism in RANTES chemokine promoter affects extent of sarcoidosis in a Japanese population. Tissue Antigens 2001; 58:293-8. [PMID: 11844139 DOI: 10.1034/j.1399-0039.2001.580502.x] [Citation(s) in RCA: 40] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
RANTES, a member of C-C chemokine, is known to be produced at sites of granulomatous reactions in the lung of sarcoidosis. RANTES is a potent eosinophil and lymphocyte attractant with particular preference for CD45RO+ T cells and eosinophils. Polymorphism of the RANTES promoter has recently been shown to be related to allergic and infectious diseases; atopic dermatitis, asthma, and polymyalgia rheumatica. Considering that this might affect sarcoidosis, we studied polymorphism of the RANTES gene in 114 patients with sarcoidosis and 136 healthy control subjects. Their genotypes were determined using polymerase chain reaction (PCR) and restriction fragment length polymorphism (RFLP). Although no difference in the genotype distribution between healthy control subjects and sarcoidosis patients was identified, the difference in the frequencies of the patients with three or more organ involvement was significant (P<0.01) with the frequency of those in AA genotype being elevated (P<0.05). BAL findings in 48 out of 114 patients who underwent bronchoscopy were reviewed. The CD4/8 ratio of lymphocytes in bronchoalveolar lavage fluid in the patients with AA genotype was significantly increased (P<0.05). From the results, we suggest that in RANTES gene polymorphism the homozygous A allele might be a genetic risk factor for extent disease of sarcoidosis.
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Affiliation(s)
- T Takada
- Division of Respiratory Medicine, Graduate School of Medical and Dental Sciences, Niigata University, Niigata, Japan.
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38
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Hara K, Hasegawa T, Ooi H, Koya T, Tanabe Y, Tsukada H, Igarashi K, Suzuki E, Arakawa M, Gejyo F. Inhibitory role of eosinophils on cell surface plasmin generation by bronchial epithelial cells: inhibitory effects of transforming growth factor beta. Lung 2001; 179:9-20. [PMID: 11479690 DOI: 10.1007/s004080000042] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Eosinophilic bronchitis is an essential component of bronchial asthma, and eosinophils play an important role. We studied the effect of eosinophils on cell surface plasmin generation by bronchial epithelial cells, because plasmin is thought to be involved in bronchial tissue repair/remodeling by means of fibrinolysis and the activation of proteases such as matrix metalloproteases. Plasmin was generated from exogenous plasminogen on the cell surface of cultured bronchial epithelial cells, NCI-H292. Transforming growth factor beta (TGF-beta) treatment resulted in reduced cell surface plasmin generation and a large increase in plasminogen activator inhibitor-type 1 (PAI-1) antigen production in NCI-H292 cells, whereas no conspicuous effects were observed with IL-1 beta and TNF alpha treatment (regulators in pulmonary epithelial cells). On the other hand, this cell surface plasmin generation was reduced by co-incubation with Eol-1, an eosinophil cell line. The addition of TGF-beta antisense and anti-TGF-beta antibodies attenuated this adverse effect of Eol-1 cell co-incubation. These data suggest that eosinophils play an inhibitory role on cell surface plasmin generation by bronchial epithelial cells by means of the up-regulation of PAI-1 expression induced by TGF-beta. Therefore, the accumulation of eosinophils in bronchial walls is thought to be involved in bronchial tissue repair/remodeling in asthma through this protease network.
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Affiliation(s)
- K Hara
- Department of Medicine II, Niigata University School of Medicine, Niigata, Japan
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Abstract
Reaction of (S)-2-(tert-butyldiphenylsilyloxy)-5-(mesyloxy)pentanal with hydroxylamine in allyl alcohol brought about simultaneous 1,3-dipolar cycloaddition of the resulting nitrone to allyl alcohol to give three diastereoisomeric adducts, from which (+)-febrifugine and (+)-isofebrifugine, potent antimalarial alkaloids, were synthesized.
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Affiliation(s)
- H Ooi
- Faculty of Pharmaceutical Sciences, Nagasaki University, Nagasaki 852-8521, Japan
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Hiyamizu H, Ooi H, Inomoto Y, Esumi T, Iwabuchi Y, Hatakeyama S. A concise enantioselective synthesis of a key A-ring synthon for 1 alpha-hydroxyvitamin D3 compounds. Org Lett 2001; 3:473-5. [PMID: 11428042 DOI: 10.1021/ol006982u] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
[figure: see text] This report describes a concise enantioselective synthesis of the A-ring synthon for the synthesis of 1 alpha-hydroxyvitamin D3 compounds. The synthesis involves two notable transformations: (I) stereoselective construction of the enol triflate from the vinyl ketone by Michael addition of Ph2P(O)Li followed by in situ triflation of the resulting enolate and (II) palladium-catalyzed Heck type cyclization of the enol triflate.
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Affiliation(s)
- H Hiyamizu
- Faculty of Pharmaceutical Sciences, Nagasaki University, Nagasaki 852, Japan
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41
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Higashi T, Miura K, Kikuchi R, Shimada K, Hiyamizu H, Ooi H, Iwabuchi Y, Hatakeyama S, Kubodera N. Characterization of new conjugated metabolites in bile of rats administered 24,25-dihydroxyvitamin D(3) and 25-hydroxyvitamin D(3). Steroids 2000; 65:281-94. [PMID: 10751640 DOI: 10.1016/s0039-128x(00)00087-8] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The characterization of new conjugated vitamin D metabolites in rat bile was performed using HPLC, liquid chromatography/tandem mass spectrometry combined derivatization, and GC-MS. After the administration of 24,25-dihydroxyvitamin D(3) to rats, 23, 25-dihydroxy-24-oxovitamin D(3) 23-glucuronide, 3-epi-24, 25-dihydroxyvitamin D(3) 24-glucuronide, and 24,25-dihydroxyvitamin D(3) 3-sulfate were obtained as new biliary metabolites together with 24,25-dihydroxyvitamin D(3) 3- and 24-glucuronides. The above metabolites, except 24,25-dihydroxyvitamin D(3) 3-glucuronide, were obtained from rats dosed with 25-hydroxyvitamin D(3). 23, 25-Dihydroxyvitamin D(3) 23-glucuronide was also obtained from the bile of rats administered 25-hydroxyvitamin D(3) in addition to its 3-glucuronide, 25-glucuronide, and 3-sulfate. Thus, it was found that 24,25-dihydroxyvitamin D(3) and 25-hydroxyvitamin D(3) were directly conjugated as glucuronide and sulfate, whereas at the C-23 position, they were hydroxylated and then conjugated. Furthermore, we found that the C-3 epimerization acts as one of the important pathways in vitamin D metabolism.
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Affiliation(s)
- T Higashi
- Faculty of Pharmaceutical Sciences, Kanazawa University, 13-1 Takara-machi, Kanazawa, Japan
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Abstract
Chronic hypercapnia is commonly found in patients with severe hypoxic lung disease and is associated with a greater elevation of pulmonary arterial pressure than that due to hypoxia alone. We hypothesized that hypercapnia worsens hypoxic pulmonary hypertension by augmenting pulmonary vascular remodeling and hypoxic pulmonary vasoconstriction (HPV). Rats were exposed to chronic hypoxia [inspiratory O(2) fraction (FI(O(2))) = 0.10], chronic hypercapnia (inspiratory CO(2) fraction = 0.10), hypoxia-hypercapnia (FI(O(2)) = 0.10, inspiratory CO(2) fraction = 0.10), or room air. After 1 and 3 wk of exposure, muscularization of resistance blood vessels and hypoxia-induced hematocrit elevation were significantly inhibited in hypoxia-hypercapnia compared with hypoxia alone (P < 0.001, ANOVA). Right ventricular hypertrophy was reduced in hypoxia-hypercapnia compared with hypoxia at 3 wk (P < 0.001, ANOVA). In isolated, ventilated, blood-perfused lungs, basal pulmonary arterial pressure after 1 wk of exposure to hypoxia (20.1 +/- 1.8 mmHg) was significantly (P < 0.01, ANOVA) elevated compared with control conditions (12.1 +/- 0.1 mmHg) but was not altered in hypoxia-hypercapnia (13.5 +/- 0.9 mmHg) or hypercapnia (11.8 +/- 1.3 mmHg). HPV (FI(O(2)) = 0.03) was attenuated in hypoxia, hypoxia-hypercapnia, and hypercapnia compared with control (P < 0.05, ANOVA). Addition of N(omega)-nitro-L-arginine methyl ester (10(-4) M), which augmented HPV in control, hypoxia, and hypercapnia, significantly reduced HPV in hypoxia-hypercapnia. Chronic hypoxia caused impaired endothelium-dependent relaxation in isolated pulmonary arteries, but coexistent hypercapnia partially protected against this effect. These findings suggest that coexistent hypercapnia inhibits hypoxia-induced pulmonary vascular remodeling and right ventricular hypertrophy, reduces HPV, and protects against hypoxia-induced impairment of endothelial function.
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Affiliation(s)
- H Ooi
- Department of Medicine and Therapeutics, Mater Misericordiae Hospital, University College Dublin, Dublin 2, Ireland
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Hasegawa T, Sorensen L, Ooi H, Marshall BC. Decreased intracellular iron availability suppresses epithelial cell surface plasmin generation. Transcriptional and post-transcriptional effects on u-PA and PAI-1 expression. Am J Respir Cell Mol Biol 1999; 21:275-82. [PMID: 10423412 DOI: 10.1165/ajrcmb.21.2.3445] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Iron and iron metabolism are critical in a variety of physiologic and pathophysiologic processes, including lung injury and repair. The plasmin/plasminogen activator (PA) system is involved in the extensive remodeling process that follows acute lung injury, and alveolar epithelial cells play a key role in this repair process. Herein we report that decreased intracellular iron availability markedly suppresses cell-surface plasmin generation by A549 human carcinoma-derived pulmonary epithelial cells. This effect is mediated by concomitant downregulation of urokinase-type PA and upregulation of PA inhibitor-type 1 expression. Northern analyses, runoff transcription assays, and messenger RNA half-life experiments using actinomycin demonstrate that transcriptional and post-transcriptional mechanisms are operative. Given these potent in vitro effects on the plasmin/PA system, we speculate that adequate intracellular iron stores are important for successful repair of acute lung injury.
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Affiliation(s)
- T Hasegawa
- Division of Respiratory, Critical Care and Occupational Medicine, Department of Internal Medicine, Salt Lake City, Utah, USA
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44
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Higashi T, Kikuchi R, Miura K, Shimada K, Hiyamizu H, Ooi H, Iwabuchi Y, Hatakeyama S, Kubodera N. New metabolic pathway of (24R)-24,25-dihydroxyvitamin D3: epimerization of the 3-hydroxy group. Biol Pharm Bull 1999; 22:767-9. [PMID: 10443483 DOI: 10.1248/bpb.22.767] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
A new metabolic pathway of (24R)-24,25-dihydroxyvitamin D3 [24,25(OH)2D3] was clarified in the in vivo experiments. After the administration of 24,25(OH)2D3 to rats, a new monoglucuronide of a vitamin D metabolite was obtained from the bile together with 24,25(OH)2D3 3- and 24-glucuronides. The genin of the metabolite was identified as 3-epi-24,25(OH)2D3 in comparison with the synthetic sample based on the data from 1H-NMR, GC/MS, and LC/atmospheric pressure chemical ionization-MS. The conjugation position was determined to be the 24-hydroxy group by the LC/electrospray ionization-MS and -MS/MS/MS combined with derivatization. To our knowledge, this is the first reported instance of the epimerization of the 3-hydroxy group of vitamin D compound with no hydroxy group at the 1alpha-position.
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Affiliation(s)
- T Higashi
- Faculty of Pharmaceutical Sciences, Kanazawa University, Japan
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45
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Abstract
BACKGROUND It is believed that severe portal hypertensive gastropathy probably accounts for most non-variceal bleeding episodes in patients with cirrhosis. Gastric antral vascular ectasia (GAVE) also occurs in these patients. It is not clear whether it is a variant of portal hypertensive gastropathy or a distinct condition. PATIENT A patient, a 66 year od woman, with cirrhosis initially diagnosed as having portal hypertensive gastropathy and subsequently classified as GAVE is described. She required transfusion with a total of 130 units of packed red cells for gastrointestinal blood loss. RESULTS The bleeding did not respond to portal decompression with TIPS or beta blockers. Following treatment with oral tranexamic acid she has not required further blood transfusion over a period of 30 months. CONCLUSION Tranexamic acid may be a useful treatment for refractory bleeding due to gastric antral vascular ectasia in patients with cirrhosis.
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46
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Kobayashi H, Ooi H, Hayakawa H, Arai T, Matsuda Y, Gotoh K, Tarao T. Histological diagnosis of amniotic fluid embolism by monoclonal antibody TKH-2 that recognizes NeuAc alpha 2-6GalNAc epitope. Hum Pathol 1997; 28:428-33. [PMID: 9104942 DOI: 10.1016/s0046-8177(97)90031-9] [Citation(s) in RCA: 46] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
This study evaluates whether immunohistochemical staining using antibody TKH-2 is presented as a sensitive method for the histological diagnosis of amniotic fluid embolism (AFE). TKH-2 is the sensitive antibody clearly directed to sialyl Tn, NeuAc alpha 2-6GalNAc and reacts with meconium- and amniotic fluid-derived mucin-type glycoprotein. Formalin-fixed, paraffin-embedded maternal lung tissue sections were obtained from four cases of patients showing AFE, and four women uninvolved with AFE served as control. Specimens were stained using the streptavidin-biotin-immunoperoxidase method. The results of immunostaining were compared with those of hematoxylin-eosin (H&E) or a conventional Alcian blue stain. Remarkable positive TKH-2 stainings were observed easily within the pulmonary vasculature in patients with AFE syndrome. AFE can be easily missed on H&E sections. Compared with TKH-2 staining, Alcian blue staining also may be insufficient to show intravascular mucin in the maternal lung sections. TKH-2 immunostaining is the sensitive method to detect meconium- and amniotic fluid-derived mucin in the lung sections of patients with AFE syndrome.
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Affiliation(s)
- H Kobayashi
- Department of Obstetrics and Gynecology, Hamamatsu University School of Medicine, Shizuoka, Japan
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47
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Seki M, Ooi H. [Membranoproliferative glomerulonephritis (type I, type III)]. Ryoikibetsu Shokogun Shirizu 1997:205-7. [PMID: 9277722] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- M Seki
- Sagamihara Kyodo Hospital
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48
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Masuda N, Yayoi E, Furukawa J, Maruhashi S, Tokunaga M, Takiguchi S, Matsui S, Yano H, Tateishi H, Kinuta M, Maruyama H, Ooi H, Okamura J. [Intra-arterial infusion chemotherapy for liver metastases from breast cancer]. Gan To Kagaku Ryoho 1996; 23:1537-41. [PMID: 8854800] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Twelve patients with liver metastases of breast cancer were treated with hepatic arterial infusion chemotherapy using 20-30 mg/body of epi-adriamycin (epi-ADM) every 2 weeks and continuous infusion of 250 mg/body/day of 5-fluorouracil (5-FU). All patients were followed by systemic chemo-endocrine therapy with oral administration of 600-1,200 mg/day of me droxyprogesterone acetate (MPA) alone or with 600-800 mg/day of 5'-deoxy-5-flurouridine (5'-DFUR). The response rate was 41.7% (5/12 cases). Duration of response was 2-28 months (mean 10 months). At one year, the survival rate was 46.8% (Kaplan-Meier method). As for side effects, gastrointestinal disturbance, bone marrow depression and alopecia were mild. These results suggest that hepatic arterial infusion therapy in combination with MPA is safe and effective for controlling liver metastases of breast cancer.
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Affiliation(s)
- N Masuda
- Dept. of Surgery, Osaka Teishin Hospital
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49
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Yayoi E, Furukawa J, Sekimoto M, Kinuta M, Tateishi H, Maruyama H, Okamura J, Ooi H. [A comparison of intra-arterial chemoembolization and infusion chemotherapy for liver metastases of breast cancer]. Gan To Kagaku Ryoho 1995; 22:1519-22. [PMID: 7574748] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Seventeen patients with liver metastases of breast cancer were treated with a combination of intra-arterial chemotherapy and endocrine therapy at our hospital from 1986 to 1994. Of 17 patients, 9 were treated with transarterial chemoembolization through hepatic artery using 40-50 mg/body of 4'epi-adriamycin (epi-ADM) and lipiodol, and the other 8 were treated with hepatic infusion chemotherapy using 20-30 mg/body of epi-ADM every 2 weeks. All patients were followed by endocrine therapy with oral administration of 800-1,200 mg/day of medroxyprogesterone acetate (MPA). The results were as follows: 1) The comparison of response rate between the two groups was not substantially changed (44.4% x 4/9 in TAE group and 50.0% x 4/8 in Reservoir group). 2) Duration of response was 4-45 months (mean 25 months) in TAE group and 3-15+ alpha months (mean 8.7 months) in Reservoir group. But in the latter group, 3 patients are now under treatment. 3) At one year, the survival rates were 44.4 percent in TAE group and 50.0 percent in Reservoir group. We conclude that combination of intra-arterial chemotherapy and endocrine therapy is a useful treatment modality for controlling liver metastases of breast cancer.
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Affiliation(s)
- E Yayoi
- Dept. of Surgery, Osaka Teishin Hospital
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50
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Ooi H, Arakawa M, Ozawa H. A morphological study of acute respiratory tract lesions in a lipopolysaccharide instilled rat model. Arch Histol Cytol 1994; 57:87-105. [PMID: 8198838 DOI: 10.1679/aohc.57.87] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
Acute inflammatory reactions in different respiratory regions were studied in a lipopolysaccharide (LPS) instilled rat model. Rats were sacrificed at 1, 2, 4, 8, 12, 24 and 48 h after administration of Escherichia coli LPS to the lumen of the trachea, and changes in the trachea, bronchioles and alveoli were observed by light and electron microscopy. In the trachea, neutrophils were markedly increased in subepithelial connective tissue and between tracheal epithelial cells, from 2 h on, showing a peak at 8 h. The number of tracheal mast cells increased at 4 and 8 h. Different structural features of secretory granules between mast cells in the tracheal epithelium and subepithelium were noticed, and the possible involvement of mast cells in airway acute inflammation is discussed. In the bronchioles, Clara cells showed characteristic morphological alterations. At 8 to 12 h, Clara cells revealed well-developed smooth and rough endoplasmic reticula and many free ribosomes, possibly for enhanced synthesis of secretory substances. Many Clara cells possessed a large apocrine-like protrusion filled with an amorphous substance, likely indicating an apocrine secretion of the cells. At 24 h, Clara cells were observed to take on a pseudostratified arrangement, suggesting enhanced proliferation of progenitor cells and their differentiation into Clara cells. In the alveoli, neutrophils infiltrated alveolar walls and pulmonary venules at 4 h and disappeared at 12 h. Prior to morphological changes in bronchioles and alveolar walls at 2 h, the macrophages with well-developed filopodia and free-ribosomes appeared in alveolar sacs and ducts. They may contribute to histological changes especially at the initial stage of acute inflammation in alveoli.
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Affiliation(s)
- H Ooi
- Department of Medicine, Niigata University School of Medicine, Japan
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