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Mohanty A, Afkhami M, Pharaon R, Yin H, Sun J, Nam A, Chang S, Gernon T, Kang R, Amini A, Sampath S, Vora N, Salehian B, Pillai R, Salgia R, Maghami E, Massarelli E. Inhibition of BRAF induces PD-L1 expression in BRAF-mutated papillary thyroid carcinoma. Int J Radiat Oncol Biol Phys 2020. [DOI: 10.1016/j.ijrobp.2019.11.102] [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]
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Nam A, Kim SM, Jeong JW, Song KH, Koo TS, Seo KW. Comparison of body surface area-based and weight-based dosing format for oral prednisolone administration in small and large-breed dogs. Pol J Vet Sci 2019; 20:611-613. [PMID: 29166276 DOI: 10.1515/pjvs-2017-0076] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
This study compared the pharmacokinetics of Prednisolone (PDS) in small- and large breed dogs with a dosing format based on body surface area (BSA) or body weight (BW). The maximum concentration and area under the curve in large-breed dogs orally administered 2 mg/kg PDS were significantly greater than those in small-breed dogs given 2 mg/kg and in large-breed dogs given 40 mg/m2. The higher blood concentrations that result from BW-based dosing of oral PDS in large-breed dogs can be more than required for effect. Meanwhile, BSA dosing at 40 mg/m may be suboptimal. These findings confirm important differences between standard PDS dosing schemes in dogs while highlighting the need to further optimize PDS dosing in large-breed dogs.
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Erman A, Sathya A, Nam A, Bielecki JM, Feld JJ, Thein HH, Wong WWL, Grootendorst P, Krahn MD. Estimating chronic hepatitis C prognosis using transient elastography-based liver stiffness: A systematic review and meta-analysis. J Viral Hepat 2018; 25:502-513. [PMID: 29239068 DOI: 10.1111/jvh.12846] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/05/2017] [Accepted: 10/30/2017] [Indexed: 12/13/2022]
Abstract
Chronic hepatitis C (CHC) is a leading cause of hepatic fibrosis and cirrhosis. The level of fibrosis is traditionally established by histology, and prognosis is estimated using fibrosis progression rates (FPRs; annual probability of progressing across histological stages). However, newer noninvasive alternatives are quickly replacing biopsy. One alternative, transient elastography (TE), quantifies fibrosis by measuring liver stiffness (LSM). Given these developments, the purpose of this study was (i) to estimate prognosis in treatment-naïve CHC patients using TE-based liver stiffness progression rates (LSPR) as an alternative to FPRs and (ii) to compare consistency between LSPRs and FPRs. A systematic literature search was performed using multiple databases (January 1990 to February 2016). LSPRs were calculated using either a direct method (given the difference in serial LSMs and time elapsed) or an indirect method given a single LSM and the estimated duration of infection and pooled using random-effects meta-analyses. For validation purposes, FPRs were also estimated. Heterogeneity was explored by random-effects meta-regression. Twenty-seven studies reporting on 39 groups of patients (N = 5874) were identified with 35 groups allowing for indirect and 8 for direct estimation of LSPR. The majority (~58%) of patients were HIV/HCV-coinfected. The estimated time-to-cirrhosis based on TE vs biopsy was 39 and 38 years, respectively. In univariate meta-regressions, male sex and HIV were positively and age at assessment, negatively associated with LSPRs. Noninvasive prognosis of HCV is consistent with FPRs in predicting time-to-cirrhosis, but more longitudinal studies of liver stiffness are needed to obtain refined estimates.
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Affiliation(s)
- A Erman
- Leslie Dan Faculty of Pharmacy, University of Toronto, Toronto, ON, Canada.,Toronto Health Economics and Technology Assessment Collaborative (THETA), University of Toronto, Toronto, ON, Canada
| | - A Sathya
- School of Medicine, Queen's University, Kingston, ON, Canada
| | - A Nam
- Institute of Health Policy, Management, and Evaluation, University of Toronto, Toronto, ON, Canada
| | - J M Bielecki
- Toronto Health Economics and Technology Assessment Collaborative (THETA), University of Toronto, Toronto, ON, Canada
| | - J J Feld
- Toronto Centre for Liver Disease, Sandra Rotman Centre for Global Health, University of Toronto, Toronto, ON, Canada
| | - H-H Thein
- Dalla Lana School of Public Health, University of Toronto, Toronto, ON, Canada
| | - W W L Wong
- School of Pharmacy, University of Waterloo, Kitchener, ON, Canada
| | - P Grootendorst
- Leslie Dan Faculty of Pharmacy, University of Toronto, Toronto, ON, Canada
| | - M D Krahn
- Leslie Dan Faculty of Pharmacy, University of Toronto, Toronto, ON, Canada.,Toronto Health Economics and Technology Assessment Collaborative (THETA), University of Toronto, Toronto, ON, Canada.,Institute of Health Policy, Management, and Evaluation, University of Toronto, Toronto, ON, Canada
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Nam A, Han SM, Go DM, Kim DY, Seo KW, Youn HY. Long-Term Management with Adipose Tissue-Derived Mesenchymal Stem Cells and Conventional Treatment in a Dog with Hepatocutaneous Syndrome. J Vet Intern Med 2017; 31:1514-1519. [PMID: 28782844 PMCID: PMC5598886 DOI: 10.1111/jvim.14798] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [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] [Received: 10/06/2016] [Revised: 04/24/2017] [Accepted: 06/29/2017] [Indexed: 12/20/2022] Open
Abstract
Hepatocutaneous syndrome (HS) is an uncommon skin disorder that occurs in conjunction with liver disease and is diagnosed based on decreased plasma concentrations of amino acids and the histopathology of skin lesions. The survival period generally is <6 months. A 10-year-old castrated male Maltese dog was presented for evaluation of lethargy, polyuria, polydipsia, and skin lesions including alopecia, erythema, and crusts. Based on increased liver enzyme activity, low plasma amino acid concentrations, and findings from liver cytology and skin biopsy, the dog was diagnosed with HS. In addition to administration of antioxidants, hepatoprotective agents, and amino acids IV, allogenic adipose tissue-derived mesenchymal stem cells were infused 46 times over a 30-month period: 8 times directly into the liver parenchyma guided by ultrasonography and the remainder of the times into peripheral veins. After commencing stem cell therapy, the dog's hair re-grew and the skin lesions disappeared or became smaller. During ongoing management, the patient suddenly presented with anorexia and uncontrolled vomiting, and severe azotemia was observed. The dog died despite intensive care. On necropsy, severe liver fibrosis and superficial necrolytic dermatitis were observed. The dog survived for 32 months after diagnosis. A combination of amino acid and stem cell therapy may be beneficial for patients with HS.
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Affiliation(s)
- A Nam
- Department of Veterinary Internal Medicine, College of Veterinary Medicine, Seoul National University, Seoul, Korea
| | - S-M Han
- Department of Veterinary Internal Medicine, College of Veterinary Medicine, Seoul National University, Seoul, Korea
| | - D-M Go
- Department of Veterinary Pathology, College of Veterinary Medicine, Seoul National University, Seoul, Korea
| | - D-Y Kim
- Department of Veterinary Pathology, College of Veterinary Medicine, Seoul National University, Seoul, Korea
| | - K-W Seo
- College of Veterinary Medicine, Chungnam National University, Daejeon, Korea
| | - H-Y Youn
- Department of Veterinary Internal Medicine, College of Veterinary Medicine, Seoul National University, Seoul, Korea
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Seo SK, Nam A, Jeon YE, Cho S, Choi YS, Lee BS. Expression and possible role of non-steroidal anti-inflammatory drug-activated gene-1 (NAG-1) in the human endometrium and endometriosis. Hum Reprod 2010; 25:3043-9. [DOI: 10.1093/humrep/deq277] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
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Kim H, Cho S, Nam A, Choi Y, Moon H, Lee B, Park K. Clinical and Histopathological Analysis of Laparoscopically Treated Ovarian Endometriotic Cysts with Special Reference to Loss of Follicles. J Minim Invasive Gynecol 2008. [DOI: 10.1016/j.jmig.2008.09.326] [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]
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