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Zhang X, Jiang W, Richter JM, Bates JA, Reznik SK, Stachura S, Rampulla R, Doddalingappa D, Ulaganathan S, Hua J, Bostwick JS, Sum C, Posy S, Malmstrom S, Dickey J, Harden D, Lawrence RM, Guarino VR, Schumacher WA, Wong P, Yang J, Gordon DA, Wexler RR, Priestley ES. Discovery of Potent and Selective Quinoxaline-Based Protease-Activated Receptor 4 (PAR4) Antagonists for the Prevention of Arterial Thrombosis. J Med Chem 2024; 67:3571-3589. [PMID: 38385264 DOI: 10.1021/acs.jmedchem.3c01986] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/23/2024]
Abstract
PAR4 is a promising antithrombotic target with potential for separation of efficacy from bleeding risk relative to current antiplatelet therapies. In an effort to discover a novel PAR4 antagonist chemotype, a quinoxaline-based HTS hit 3 with low μM potency was identified. Optimization of the HTS hit through the use of positional SAR scanning and the design of conformationally constrained cores led to the discovery of a quinoxaline-benzothiazole series as potent and selective PAR4 antagonists. The lead compound 48, possessing a 2 nM IC50 against PAR4 activation by γ-thrombin in platelet-rich plasma (PRP) and greater than 2500-fold selectivity versus PAR1, demonstrated robust antithrombotic efficacy and minimal bleeding in the cynomolgus monkey models.
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Affiliation(s)
- Xiaojun Zhang
- Research & Early Development, Bristol Myers Squibb, 3551 Lawrenceville Road, Princeton, New Jersey 08540, United States
| | - Wen Jiang
- Research & Early Development, Bristol Myers Squibb, 3551 Lawrenceville Road, Princeton, New Jersey 08540, United States
| | - Jeremy M Richter
- Research & Early Development, Bristol Myers Squibb, 3551 Lawrenceville Road, Princeton, New Jersey 08540, United States
| | - J Alex Bates
- Research & Early Development, Bristol Myers Squibb, 3551 Lawrenceville Road, Princeton, New Jersey 08540, United States
| | - Samuel K Reznik
- Research & Early Development, Bristol Myers Squibb, 3551 Lawrenceville Road, Princeton, New Jersey 08540, United States
| | - Sylwia Stachura
- Research & Early Development, Bristol Myers Squibb, 3551 Lawrenceville Road, Princeton, New Jersey 08540, United States
| | - Richard Rampulla
- Research & Early Development, Bristol Myers Squibb, 3551 Lawrenceville Road, Princeton, New Jersey 08540, United States
| | - Dyamanna Doddalingappa
- Department of Discovery Synthesis, Biocon Bristol Myers Squibb R&D Centre, Syngene International Ltd., Biocon Park, Plot No. 2 & 3, Bommasandra-Jigani Road, Bangalore 560099, India
| | - Sankar Ulaganathan
- Department of Discovery Synthesis, Biocon Bristol Myers Squibb R&D Centre, Syngene International Ltd., Biocon Park, Plot No. 2 & 3, Bommasandra-Jigani Road, Bangalore 560099, India
| | - Ji Hua
- Research & Early Development, Bristol Myers Squibb, 3551 Lawrenceville Road, Princeton, New Jersey 08540, United States
| | - Jeffrey S Bostwick
- Research & Early Development, Bristol Myers Squibb, 3551 Lawrenceville Road, Princeton, New Jersey 08540, United States
| | - Chi Sum
- Research & Early Development, Bristol Myers Squibb, 3551 Lawrenceville Road, Princeton, New Jersey 08540, United States
| | - Shana Posy
- Research & Early Development, Bristol Myers Squibb, 3551 Lawrenceville Road, Princeton, New Jersey 08540, United States
| | - Sarah Malmstrom
- Research & Early Development, Bristol Myers Squibb, 3551 Lawrenceville Road, Princeton, New Jersey 08540, United States
| | - Joyce Dickey
- Research & Early Development, Bristol Myers Squibb, 3551 Lawrenceville Road, Princeton, New Jersey 08540, United States
| | - David Harden
- Research & Early Development, Bristol Myers Squibb, 3551 Lawrenceville Road, Princeton, New Jersey 08540, United States
| | - R Michael Lawrence
- Research & Early Development, Bristol Myers Squibb, 3551 Lawrenceville Road, Princeton, New Jersey 08540, United States
| | - Victor R Guarino
- Research & Early Development, Bristol Myers Squibb, 3551 Lawrenceville Road, Princeton, New Jersey 08540, United States
| | - William A Schumacher
- Research & Early Development, Bristol Myers Squibb, 3551 Lawrenceville Road, Princeton, New Jersey 08540, United States
| | - Pancras Wong
- Research & Early Development, Bristol Myers Squibb, 3551 Lawrenceville Road, Princeton, New Jersey 08540, United States
| | - Jing Yang
- Research & Early Development, Bristol Myers Squibb, 3551 Lawrenceville Road, Princeton, New Jersey 08540, United States
| | - David A Gordon
- Research & Early Development, Bristol Myers Squibb, 3551 Lawrenceville Road, Princeton, New Jersey 08540, United States
| | - Ruth R Wexler
- Research & Early Development, Bristol Myers Squibb, 3551 Lawrenceville Road, Princeton, New Jersey 08540, United States
| | - E Scott Priestley
- Research & Early Development, Bristol Myers Squibb, 3551 Lawrenceville Road, Princeton, New Jersey 08540, United States
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Anderson M, Chavez M, Dickey J, Selzman C, Fang J, Drakos S, Stehlik J, Hanff T. Pre-Transplant Waitlist Mortality Not Associated with Severity of Shock Hemodynamics. J Heart Lung Transplant 2023. [DOI: 10.1016/j.healun.2023.02.1668] [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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Chavez M, Anderson M, Dickey J, Selzman C, Drakos S, Stehlik J, Hanff T. Impact of Blood Group on Status 2 vs Status 3 Heart Transplant Listing in the U.S. J Heart Lung Transplant 2023. [DOI: 10.1016/j.healun.2023.02.537] [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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Dickey J, Liu C, Chahin M, Keruakous A. Diffuse intravascular coagulation during induction chemotherapy for B-cell acute lymphoblastic leukemia. Am J Med Sci 2023. [DOI: 10.1016/s0002-9629(23)00222-7] [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: 01/28/2023]
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Johnson SR, Padmanabha R, Vaccaro W, Hermsmeier M, Cacace A, Lawrence M, Dickey J, Esposito K, Pike K, Wong V, Poss M, Loughney D, Tebben A. A simple strategy for mitigating the effect of data variability on the identification of active chemotypes from high-throughput screening data. ACTA ACUST UNITED AC 2007; 12:276-84. [PMID: 17272827 DOI: 10.1177/1087057106297826] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [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: 11/17/2022]
Abstract
Among the several goals of a high-throughput screening campaign is the identification of as many active chemotypes as possible for further evaluation. Often, however, the number of concentration response curves (e.g., IC(50)s or K(i)s) that can be collected following a primary screen is limited by practical constraints such as protein supply, screening workload, and so forth. One possible approach to this dilemma is to cluster the hits from the primary screen and sample only a few compounds from each cluster. This introduces the question as to how many compounds must be selected from a cluster to ensure that an active compound is identified, if it exists at all. This article seeks to address this question using a Monte Carlo simulation in which the dependence of the success of sampling is directly linked to screening data variability. Furthermore, the authors demonstrate that the use of replicated compounds in the screening collection can easily assess this variability and provide a priori guidance to the screener and chemist as to the extent of sampling required to maximize chemotype identification during the triage process. The individual steps of the Monte Carlo simulation provide insight into the correspondence between the percentage inhibition and eventual IC(50) curves.
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Affiliation(s)
- Stephen R Johnson
- Pharmaceutical Research Institute, Bristol-Myers Squibb, Princeton, NJ 08543-4000, USA.
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Campbell B, Dickey J, Beckman B, Young G, Pierce A, Fukada H, Swanson P. Previtellogenic oocyte growth in salmon: relationships among body growth, plasma insulin-like growth factor-1, estradiol-17beta, follicle-stimulating hormone and expression of ovarian genes for insulin-like growth factors, steroidogenic-acute regulatory protein and receptors for gonadotropins, growth hormone, and somatolactin. Biol Reprod 2006; 75:34-44. [PMID: 16554413 DOI: 10.1095/biolreprod.105.049494] [Citation(s) in RCA: 110] [Impact Index Per Article: 6.1] [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: 11/01/2022] Open
Abstract
Body growth during critical periods is known to be an important factor in determining the age of maturity and fecundity in fish. However, the endocrine mechanisms controlling oogenesis in fish and the effects of growth on this process are poorly understood. In this study interactions between the growth and reproductive systems were examined by monitoring changes in various components of the FSH-ovary axis, plasma insulin-like growth factor 1 (Igf1), and ovarian gene expression in relation to body and previtellogenic oocyte growth in coho salmon. Samples were collected from females during two hypothesized critical periods when growth influences maturation in this species. Body growth during the fall-spring months was strongly related to the degree of oocyte development, with larger fish possessing more advanced oocytes than smaller, slower growing fish. The accumulation of cortical alveoli in the oocytes was associated with increases in plasma and pituitary FSH, plasma estradiol-17beta, and ovarian steroidogenic acute regulatory protein (star) gene expression, whereas ovarian transcripts for growth hormone receptor and somatolactin receptor decreased. As oocytes accumulated lipid droplets, a general increase occurred in plasma Igf1 and components of the FSH-ovary axis, including plasma FSH, estradiol-17beta, and ovarian mRNAs for gonadotropin receptors, star, igf1, and igf2. A consistent positive relationship between plasma Igf1, estradiol-17beta, and pituitary FSH during growth in the spring suggests that these factors are important links in the mechanism by which body growth influences the rate of oocyte development.
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Affiliation(s)
- B Campbell
- School of Aquatic and Fishery Sciences, University of Washington, Seattle 98195, USA
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Maidanik G, Dickey J. A boundary that sustains a negligible specular reflection coefficient over a wide frequency band. J Acoust Soc Am 2000; 107:1103-1110. [PMID: 10738766 DOI: 10.1121/1.428400] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
In a previous paper the authors analyzed and discussed the specular reflection coefficient of a plane boundary comprised of a plate, a compliant layer, and a fluid. The analysis showed that a negligible specular reflection coefficient may be derived provided specific resonance conditions are met. The resonance of concern is that between the surface mass of the plate and the surface stiffness of the compliant layer. The conditions of resonance included the value that must be assigned to the loss factor in the compliant layer. In the present paper, an attempt is made to determine the conditions that must be placed on the surface stiffness of the compliant layer in order to increase the frequency range over which a negligible specular reflection coefficient may be maintained. The tolerances in these conditions are also estimated.
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Black M, Abadie BR, Schuler PB, Boling R, Dickey J, Nabors J. ESTIMATION OF TREADMILL MAXIMAL OXYGEN CONSUMPTION FROM A 12-MINUTE SHALLOW WATER RUN IN HIGHLY CONDITIONED COLLEGE MALE AND FEMALE SUBJECTS 280. Med Sci Sports Exerc 1997. [DOI: 10.1097/00005768-199705001-00280] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Hübner KF, Buonocore E, Gould HR, Thie J, Smith GT, Stephens S, Dickey J. Differentiating benign from malignant lung lesions using "quantitative" parameters of FDG PET images. Clin Nucl Med 1996; 21:941-9. [PMID: 8957608 DOI: 10.1097/00003072-199612000-00005] [Citation(s) in RCA: 90] [Impact Index Per Article: 3.2] [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: 02/03/2023]
Abstract
UNLABELLED Fluorine-18 labeled deoxyglucose positron-emission tomography (FDG-PET) applications in oncology include the differential diagnosis of chest masses and single pulmonary nodules. However, FDG is not tumor-specific; rather, it also accumulates in inflammatory processes. This study was performed to identify image parameters that would improve the specificity of PET. METHODS Twenty-six patients who had benign and malignant lung lesions were examined retrospectively. Positron-emission tomography data were acquired in dynamic scanning mode after intravenous bolus of 250-402 MBq of FDG. Standardized uptake values (SUVs) were calculated and Patlak analyses were performed in selected regions of interest in the PET images. Positron-emission tomography results were related to histological diagnosis (N = 49) or clinical follow-up (N = 3). RESULTS The specificity and sensitivity of the original PET scan reports, which was based on visual image interpretation and loosely applied SUVs, was 100% and 73%, respectively. Using the SUVs with a cut-off value of 3.8 and Kpat value with a cut-off at 0.025 min-1 improved the specificity to 81% and 85%. CONCLUSION FDG-PET image interpretation can be facilitated by using SUV information or the accumulation rate of the radiotracer (Patlak). With additional validation, this method could have a significant cost-effective impact on the medical/surgical management of chest masses.
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Affiliation(s)
- K F Hübner
- Department of Radiology, University of Tennessee Medical Center, Knoxville, Tennessee
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Huang L, Wei YY, Momose-Hotokezaka A, Dickey J, Okusa MD. Alpha 2B-adrenergic receptors: immunolocalization and regulation by potassium depletion in rat kidney. Am J Physiol 1996; 270:F1015-26. [PMID: 8764321 DOI: 10.1152/ajprenal.1996.270.6.f1015] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Regulation of transport processes in renal epithelial cells in response to alpha 2-adrenergic receptor (alpha 2-AR) stimulation is likely due to specific effects of the A-, B-, or C-subtype alpha 2-AR. The purpose of the present study was 1) to examine the precise localization, using subtype-specific antibodies, the B-subtype alpha 2-AR protein, the most abundant alpha 2-AR in rat kidney; and 2) to determine the effect of dietary potassium restriction, a factor known to increase alpha 2B-ARs, on the distribution of receptors. We employed a method to generate a specific antibody to the third intracellular loop of the alpha 2B-AR and demonstrated the specificity of this antibody. Our results demonstrated, for the first time, evidence for the alpha 2B-receptor protein in the basolateral membrane of proximal convoluted and straight tubules. No specific immunoreactivity was detected in other nephron segments. Finally, the increase in alpha 2B-AR expression observed previously was due to the recruitment of alpha 2B-ARs to the basolateral membrane of proximal tubules.
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Affiliation(s)
- L Huang
- Department of Medicine, University of Virginia Health Sciences Center, Charlottesville 22908, USA
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Mayer TG, Polatin P, Smith B, Smith C, Gatchel R, Herring SA, Hall H, Donelson RG, Dickey J, English W. Spine rehabilitation. Secondary and tertiary nonoperative care. Spine (Phila Pa 1976) 1995; 20:2060-6. [PMID: 8578385] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
To achieve desirable behavioral outcomes, physicians treating spinal pain patients should be aware of appropriate algorithms for conservative care. Lower cost secondary rehabilitation can be effective if deconditioning, severity of physical symptoms, surgical equivocation, or psychosocial barriers to recovery are not present. Patients who have extended disability in excess of 6 months, recognized psychosocial barriers (depression, substance abuse, personality disorders, secondary gain), or severe deconditioning have a better prognosis with tertiary care.
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Affiliation(s)
- T G Mayer
- Department of Orthopedic Surgery, University of Texas, Southwestern Medical Center at Dallas, USA
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Stein PD, Floyd DM, Bisaha S, Dickey J, Girotra RN, Gougoutas JZ, Kozlowski M, Lee VG, Liu EC, Malley MF. Discovery and structure-activity relationships of sulfonamide ETA-selective antagonists. J Med Chem 1995; 38:1344-54. [PMID: 7731020 DOI: 10.1021/jm00008a013] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.1] [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: 01/26/2023]
Abstract
Random screening of compounds in an ETA receptor binding assay led to the discovery of a class of benzenesulfonamide ligands. Optimization led to the development of 5-amino-N-(3,4-dimethyl-5-isoxazolyl)-1-naphthalenesulfonamides which were functional antagonists. Structural features which were important to activity included a 1,5-substitution pattern on the naphthalene ring; a sulfonamide NH with a pK value < 7; an amine, preferably with alkyl substituents, at the 5-position; and methyl groups on both the 3- and 4-positions of the isoxazole.
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Affiliation(s)
- P D Stein
- Department of Chemistry, Bristol-Myers Squibb Pharmaceutical Research Institute, Princeton, New Jersey 08543-4000, USA
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Stein PD, Hunt JT, Floyd DM, Moreland S, Dickinson KE, Mitchell C, Liu EC, Webb ML, Murugesan N, Dickey J. The discovery of sulfonamide endothelin antagonists and the development of the orally active ETA antagonist 5-(dimethylamino)-N-(3,4-dimethyl-5-isoxazolyl)-1-naphthalenesulf onamide. J Med Chem 1994; 37:329-31. [PMID: 8308857 DOI: 10.1021/jm00029a001] [Citation(s) in RCA: 128] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- P D Stein
- Department of Chemistry, Bristol-Myers Squibb Pharmaceutical Research Institute, Princeton, New Jersey 08543-4000
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Rodgers SF, Moenning JE, Bussard DA, Garrison BT, Lapp TH, Dickey J. Utilization of 3-D computer tomographs in oral surgery. J Indiana Dent Assoc 1993; 72:16-20. [PMID: 8410440] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
Imaging is essential in the diagnosis and treatment of maxillofacial abnormalities. CT scans are but one type of imaging studies available to the practitioner. Computers have recently enhanced the traditional CT scan so that it can now be viewed in a three-dimensional reconstruction. Essentials of 3-D imaging and its uses will be presented by the authors, with various case reports to illustrate their value in the dental office.
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Dickey J. Effectiveness of intradermally injected lidocaine hydrochloride as a local anesthetic for intravenous catheter insertion. J Emerg Nurs 1988; 14:160-3. [PMID: 3286949] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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Bromberg C, Dickey J, Fox G, Kropac W, Stampke SR, Haggerty H, Malamud E, Abrams R, Delzenero R, Lopez F, Margulies S, McLeod D, Solomon J, Dzierba A, Fredericksen F, Heinz R, Krider J, Martin H, Petersen DV, Zieminska D. Study ofK*−(890)andK*−(1430)production in the reactionK−p→K¯0π−pat 100 and 175 GeV/c. Int J Clin Exp Med 1984. [DOI: 10.1103/physrevd.29.2469] [Citation(s) in RCA: 2] [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: 11/07/2022]
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Dickey J. What I wish my doctor had told me. Can Fam Physician 1979; 25:1271-1273. [PMID: 21297804 PMCID: PMC2383411] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
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