51
|
Sano I, Kuwatani M, Sugiura R, Kato S, Kawakubo K, Ueno T, Nakanishi Y, Mitsuhashi T, Hirata H, Haba S, Hirano S, Sakamoto N. Hepatobiliary and Pancreatic: A rare case of a well-differentiated neuroendocrine tumor in the bile duct with spontaneous regression diagnosed by EUS-FNA. J Gastroenterol Hepatol 2017; 32:11. [PMID: 28052461 DOI: 10.1111/jgh.13585] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 08/22/2016] [Indexed: 12/17/2022]
|
52
|
Harada K, Okamoto W, Mimaki S, Kawamoto Y, Bando H, Yuki S, Yoshino T, Komatsu Y, Ohtsu A, Sakamoto N, Tsuchihara K. Comparative sequence analysis between primary colorectal cancer, metastasis and recurrent metastasis after adjuvant FOLFOX chemotherapy. Eur J Cancer 2016. [DOI: 10.1016/s0959-8049(16)32949-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
53
|
Asada F, Nomura T, Kawamata K, Takano K, Satoh T, Akezaki Y, Sakamoto K, Sakamoto N, Matsudaira K. Survey on the actual situation of preventive measures for low back pain in a welfare facilities for the elderly. Physiotherapy 2016. [DOI: 10.1016/j.physio.2016.10.085] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
|
54
|
Muranaka T, Komatsu Y, Ohnishi S, Sawada K, Harada K, Kawamoto Y, Nakatsumi H, Yuki S, Yagisawa M, Nakamura M, Kobayashi Y, Sogabe S, Miyagishima T, Sakamoto N. The prospective study of relation between 5-HIAA/substance P and nausea/vomiting in patients receiving moderately emetogenic chemotherapy. Ann Oncol 2016. [DOI: 10.1093/annonc/mdw390.73] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
|
55
|
Mizokami M, Dvory-Sobol H, Izumi N, Nishiguchi S, Doehle B, Svarovskaia ES, De-Oertel S, Knox S, Brainard DM, Miller MD, Mo H, Sakamoto N, Takehara T, Omata M. Resistance Analyses of Japanese Hepatitis C-Infected Patients Receiving Sofosbuvir or Ledipasvir/Sofosbuvir Containing Regimens in Phase 3 Studies. J Viral Hepat 2016; 23:780-8. [PMID: 27196675 DOI: 10.1111/jvh.12549] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/06/2016] [Accepted: 04/21/2016] [Indexed: 12/11/2022]
Abstract
High rates of sustained virologic response (SVR) has been achieved in Japanese patients with chronic hepatitis C virus (HCV) genotype (GT)1 and GT2 infection treated with ledipasvir/sofosbuvir (LDV/SOF) ±ribavirin (RBV) and SOF+RBV, respectively. We evaluated the effect of baseline HCV NS5A and NS5B resistance-associated variants (RAVs) on treatment outcome and characterized variants at virologic failure. Baseline deep sequencing for NS5A and NS5B genes was performed for all GT1 patients. Deep sequencing of NS5A (GT1 only) and NS5B (GT1 and GT2) was performed for patients who failed treatment or discontinued early with detectable HCV RNA (i.e., >25 IU/mL). In patients with HCV GT1 infection, 22.3% (GT1a: 2/11; GT1b: 74/330) had ≥1 baseline NS5A RAV. The most frequent NS5A RAVs in GT1b were Y93H (17.9%, 59/330) and L31M (2.4%, 8/330). Despite the presence of NS5A RAVs at baseline, 100% and 97% of patients achieved SVR12, compared with 100% and 99% for those with no NS5A RAVs with LDV/SOF and LDV/SOF+RBV, respectively. All patients with NS5B RAVs at baseline achieved SVR12. Of the 153 patients with GT2 infection (GT2a 60.1%, GT2b 39.9%), 3.3% (5/153) experienced viral relapse. No S282T or other NS5B RAVs were detected at baseline or relapse; no change in susceptibility to SOF or RBV was observed at relapse. In conclusion, LDV/SOF and SOF+RBV demonstrate a high barrier to resistance in Japanese patients with HCV GT1 and GT2 infection. The presence of baseline NS5A RAVs did not impact treatment outcome in GT1 Japanese patients treated with LDV/SOF for 12 weeks.
Collapse
|
56
|
Yuki S, Komatsu Y, Muranaka T, Harada K, Sugiyama J, Tsuji Y, Ando T, Hosokawa A, Hatanaka K, Naruse H, Takahata T, Sato A, Kobayashi Y, Miyagishima T, Okuda H, Kudo M, Nakamura M, Hisai H, Sakamoto N, Sakata Y. Phase II trial of panitumumab monotherapy for patients with KRAS exon2 wild type colorectal cancer after progression on cetuximab. HGCSG1101. Ann Oncol 2016. [DOI: 10.1093/annonc/mdw370.45] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
|
57
|
Matsuo M, Miyoshi M, Ueno M, Yamashita H, Kajita A, Takahashi M, Yamamoto M, Shiba Y, Uchida J, Nakashima S, Yamanishi M, Wakida K, Tabuchi S, Mikajiri R, Yamamoto I, Usami M, Sakamoto N. MON-P133: Analysis of the Body Composition Distribution by Confidence Ellipse of RXC Graph for Japanese Diabetes Mellitus Patients. Clin Nutr 2016. [DOI: 10.1016/s0261-5614(16)30767-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
|
58
|
Sakamoto N, Yumura T, Akashi M, Onishi M. Synthesis and Anticoagulant Properties of a Novel Heparinoid N-Sulfate-Bearing Vinylpolymer. J BIOACT COMPAT POL 2016. [DOI: 10.1177/088391159901400204] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
A novel heparinoid polymer was prepared with an N-sulfate side chain group by sulfation of poly( N-vinylacetamide-co-vinylamine) [poly(NVA-co-VAm)] which was obtained by the partial hydrolysis of poly( N-vinylacetamide) [poly(NVA)]. The hydrolysis of poly(NVA) was controlled by reaction time and temperature and the sulfation of poly(NVA-co-VAm) was performed with chlorosulfonic acid. Poly( N-vinylacetamide-co-vinylamine-co-vinylsulfamic acid) [poly(NVA-co-VAm-co-VSA)] was confirmed by means of IR spectroscopy, and the degree of sulfation of poly(NVA-co-VAm-co-VSA) was estimated by elemental analysis. The anticoagulant properties of poly(NVA-co-VAm-co-VSA) were evaluated using the Lee-White clotting test and activated partial thromboplastin time (APTT) test. The human whole blood clotting time in the presence of poly(NVA-co-VAm-co-VSA) was prolonged compared with poly(NVA) and poly(NVA-co-VAm). The clotting time was prolonged with increased N-sulfate groups on the polymer. APTT tests of the polymer were also prolonged with N-sulfate increases. The results suggest that the N-sulfate components on the polymer can endow anticoagulant activity to synthetic polymers.
Collapse
|
59
|
Nakatsumi H, Komatsu Y, Sawada K, Muranaka T, Kawamoto Y, Yuki S, Sakamoto N. P-168 Retrospective comparison of efficacy and safety of docetaxel and weekly-paclitaxel as 2nd-line chemotherapy for patients with unresectable or recurrent esophageal cancer. Ann Oncol 2016. [DOI: 10.1093/annonc/mdw199.162] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
|
60
|
Yuki S, Komatsu Y, Nakatsumi H, Kawamoto Y, Muranaka T, Sawada K, Tsuji Y, Hosokawa A, Nakamura M, Muto O, Sasaki T, Iwanaga I, Hatanaka K, Sato A, Eto K, Furukawa K, Tateyama M, Takahashi Y, Sogabe S, Honda T, Sakamoto N, Sakata Y. P-147 Final analysis: phase II trial of Irinotecan/S-1/cetuximab (IRIS/Cet) as second line treatment in patients with KRAS exon2 wild type mCRC: HGCSG0902. -comparison of administration interval in cetuximab treatment. Ann Oncol 2016. [DOI: 10.1093/annonc/mdw199.141] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
|
61
|
Das H, Arai T, Debnath N, Sakamoto N, Shinozaki K, Suzuki H, Wakiya N. Impact of acidic catalyst to coat superparamagnetic magnesium ferrite nanoparticles with silica shell via sol–gel approach. ADV POWDER TECHNOL 2016. [DOI: 10.1016/j.apt.2016.02.009] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
|
62
|
Ohno T, Masuda T, Ochibe S, Hirai S, Suzuki H, Arai T, Sakamoto N, Wakiya N, Matsuda T. Effect of the reduction condition on the catalytic activity for steam reforming process using Ni doped LaAlO 3 nano-particles. ADV POWDER TECHNOL 2016. [DOI: 10.1016/j.apt.2015.11.013] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
|
63
|
Kumar PJ, Nishimura K, Senna M, Düvel A, Heitjans P, Kawaguchi T, Sakamoto N, Wakiya N, Suzuki H. A novel low-temperature solid-state route for nanostructured cubic garnet Li7La3Zr2O12 and its application to Li-ion battery. RSC Adv 2016. [DOI: 10.1039/c6ra09695f] [Citation(s) in RCA: 56] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Garnet Li7La3Zr2O12 nanoparticles with 1 mass% Al were prepared via a solid-state route at 750 °C within 3 h. A model cell sandwiched by Li and LiCoO2 exhibited initial discharge capacity of 64 μA h cm−2 μm−1, being 93% of LiCoO2 theoretical value.
Collapse
|
64
|
Goto K, Ishikawa S, Honma R, Tanimoto K, Sakamoto N, Sentani K, Oue N, Teishima J, Matsubara A, Yasui W. The transcribed-ultraconserved regions in prostate and gastric cancer: DNA hypermethylation and microRNA-associated regulation. Oncogene 2015; 35:3598-606. [PMID: 26640143 DOI: 10.1038/onc.2015.445] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2015] [Revised: 09/18/2015] [Accepted: 10/05/2015] [Indexed: 12/24/2022]
Abstract
The transcribed-ultraconserved regions (T-UCRs) are a novel class of non-coding RNAs, which are absolutely conserved (100%) between the orthologous regions of the human, rat and mouse genomes. Previous studies have described that several T-UCRs show differential expressions in cancers and might be involved in cancer development. We investigated the transcriptional levels of representative 26 T-UCRs and determined the regions that were differently expressed in prostate cancer (PCa) and gastric cancer (GC). A quantitative reverse transcription-polymerase chain reaction analysis revealed the downregulation of Uc.158+A expression by a DNA methylation-associated mechanism, which was restored by 5-Aza-dC (5-aza-2'-deoxycytidine) treatment. Bisulfite genomic sequencing using cell lines and tissue samples demonstrated cancer-specific CpG hypermethylation in both GC and PCa. However, Uc.416+A was only overexpressed in GC and we identified an miR-153 binding site in the possible regulatory region of Uc.416+A using online databases. Along with a forced expression or knockdown of miR-153 in MKN-74 GC cells, the transcriptional levels of Uc.416+A were significantly disturbed. A luciferase reporter gene assay supported the direct regulation of Uc.416+A expression by miR-153. Furthermore, Uc.416+A was associated with cell growth through the regulation of IGFBP6 (insulin-like growth factor-binding protein 6) in GC. These findings suggest an oncogenic role of Uc.416+A in GC, which suggests that our approach would provide new insights into functional studies of T-UCRs in cancer biology.
Collapse
|
65
|
Ishiguro A, Yuki S, Kawamoto Y, Nakamura F, Takahashi N, Shichinohe T, Kusumi T, Sogabe S, Hatanaka K, Misawa K, Nenohi M, Hayashi H, Fukushima H, Takahashi M, Amano T, Ito Y, Sakamoto N, Taketomi A, Hirano S, Komatsu Y. 163P Safety analysis of FOLFOX as adjuvant chemotherapy for stage III colon cancer in phase II study (NORTH/HGCSG1003) - an analysis of surgeons vs oncologists. Ann Oncol 2015. [DOI: 10.1093/annonc/mdv523.24] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
66
|
Komatsu Y, Yuki S, Nakatsumi H, Sawada K, Hatanaka K, Kato T, Meguro T, Nakamura M, Iwanaga I, Uebayashi M, Tateyama M, Eto K, Kudo M, Kato K, Okuda H, Sogabe S, Miyagishima T, Miyashita K, Sakamoto N, Sakata Y. 172P Updated analysis: observational cohort study of 1st line bevacizumab combined with chemotherapy in metastatic colorectal cancer (HGCSG0802): Comparison of infusional FU/oxaliplatin (OX) + BV and oral FU/OX + BV. Ann Oncol 2015. [DOI: 10.1093/annonc/mdv523.33] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
|
67
|
Yuki S, Komatsu Y, Nakatsumi H, Muranaka T, Kobayashi Y, Miyagishima T, Ehira N, Iwanaga I, Okuda H, Tateyama M, Tsuji Y, Hatanaka K, Nakamura M, Kudo M, Fukushima H, Hisai H, Abe R, Sakamoto N, Oba K, Sakata Y. 157P Randomized controlled trial on the skin toxicity of panitumumab in third line treatment of KRAS Exon2 wild-type mCRC: Japanese Skin Toxicity Evaluation Protocol with Panitumumab: J-STEPP/HGCSG1001: updated analysis of anti-tumor efficacy. Ann Oncol 2015. [DOI: 10.1093/annonc/mdv523.18] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
|
68
|
Nishida N, Ohashi J, Sugiyama M, Tsuchiura T, Yamamoto K, Hino K, Honda M, Kaneko S, Yatsuhashi H, Koike K, Yokosuka O, Tanaka E, Taketomi A, Kurosaki M, Izumi N, Sakamoto N, Eguchi Y, Sasazuki T, Tokunaga K, Mizokami M. Effects of HLA-DPB1 genotypes on chronic hepatitis B infection in Japanese individuals. ACTA ACUST UNITED AC 2015; 86:406-12. [PMID: 26449183 DOI: 10.1111/tan.12684] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2015] [Revised: 09/04/2015] [Accepted: 09/15/2015] [Indexed: 01/26/2023]
Abstract
Significant associations of HLA-DP alleles with chronic hepatitis B (CHB) infection are evident in Asian and Arabian populations, including Japanese, Han Chinese, Korean, and Saudi Arabian populations. Here, significant associations between CHB infection and five DPB1 alleles (two susceptibility alleles, DPB1(*) 05:01 and (*) 09:01, and three protective alleles, DPB1(*) 02:01, (*) 04:01, and (*) 04:02) were confirmed in a population comprising of 2582 Japanese individuals. Furthermore, odds ratios for CHB were higher for those with both DPB1 susceptibility alleles than for those with only one susceptibility allele; therefore, effects of susceptibility alleles were additive for risk of CHB infection. Similarly, protective alleles showed an additive effect on protection from CHB infection. Moreover, heterozygotes of any protective allele showed stronger association with CHB than did homozygotes, suggesting that heterozygotes may bind a greater variety of hepatitis B-derived peptides, and thus present these peptides more efficiently to T-cell receptors than homozygotes. Notably, compound heterozygote of the protective allele (any one of DPB1*02:01, *04:01, and *04:02) and the susceptible allele DPB1*05:01 was significantly associated with protection against CHB infection, which indicates that one protective HLA-DPB1 molecule can provide dominant protection. Identification of the HLA-DPB1 genotypes associated with susceptibility to and protection from CHB infection is essential for future analysis of the mechanisms responsible for immune recognition of hepatitis B virus antigens by HLA-DPB1 molecules.
Collapse
|
69
|
Sakamoto N, Nakagawa R, Teraoka K, Sagawa N, Fukuma E. 1925 Early results of endoscopic nipple-sparing mastectomy for breast cancer and immediate reconstruction with a tissue expander. Eur J Cancer 2015. [DOI: 10.1016/s0959-8049(16)30874-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
70
|
Nakatsumi H, Yuki S, Kawamoto Y, Muranaka T, Hatanaka K, Kato T, Meguro T, Nakamura M, Iwanaga I, Uebayashi M, Tateyama M, Eto K, Kudo M, Kato S, Okuda H, Sogabe S, Miyashita K, Sakata Y, Sakamoto N, Komatsu Y. 2092 Updated analysis: Observational cohort study of 1st line bevacizumab combined with chemotherapy in metastatic colorectal cancer (HGCSG0802): Comparison of infusional FU/oxaliplatin(OX)+BV and oral FU/OX+BV. Eur J Cancer 2015. [DOI: 10.1016/s0959-8049(16)31014-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
71
|
Iwanaga I, Yuki S, Fukushima H, Takahashi N, Shichinohe T, Kusumi T, Nakamura F, Sogabe S, Hatanaka K, Oomori K, Misawa K, Senmaru N, Iwai K, Shinohara T, Koike M, Miyashita K, Amano T, Ito Y, Sakamoto N, Taketomi A, Hirano S, Komatsu Y. P-249 Safety analysis of FOLFOX as adjuvant chemotherapy for stage III colon cancer in phase II study (NORTH/HGCSG1003) - an analysis of surgeons vs oncologists. Ann Oncol 2015. [DOI: 10.1093/annonc/mdv233.246] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
72
|
Yuki S, Komatsu Y, Muranaka T, Yoshida S, Ohta Y, Hatanaka K, Tsuji Y, Kawamoto Y, Yoshizaki K, Sato A, Eto K, Onodera K, Kato S, Nakamura M, Muto O, Abe M, Sato Y, Ishiguro A, Tateyama M, Okuda H, Sakamoto N, Sakata Y. P-271 Retrospective Cohort Study on the Safety and Efficacy of Regorafenib for Metastatic Colorectal Cancer Patients: The HGCSG1401 Study -First Report-. Ann Oncol 2015. [DOI: 10.1093/annonc/mdv233.268] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
|
73
|
Kawakubo K, Kawakami H, Kuwatani M, Sakamoto N. Education and imaging. Hepatobiliary and pancreatic: A splenic artery aneurysm presenting as a calcified pancreatic mass. J Gastroenterol Hepatol 2015; 30:655. [PMID: 25776962 DOI: 10.1111/jgh.12848] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/09/2022]
|
74
|
Nagahara A, Asaoka D, Hojo M, Sasaki H, Shimada Y, Matsumoto K, Ueyama H, Shibuya T, Sakamoto N, Osada T, Watanabe S. Difference in efficacy of proton pump inhibitor between new-onset and recurrent gastroesophageal reflux disease: Result from a study of on-demand versus continuous maintenance therapy in Japan. Hippokratia 2015; 19:53-56. [PMID: 26435648 PMCID: PMC4574588] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
BACKGROUND-OBJECTIVE No study has focused on the difference in efficacy of maintenance therapy between patients with new-onset and recurrent gastroesophageal reflux disease (GERD). The aim of this study is to reveal this point. METHODS Endoscopically proven GERD patients who had completed 8-week initial therapy were sequentially randomized to continuous arm (Omeprazole 20mg od) or on-demand arm (Omeprazole 20mg on-demand). Patients filled in daily symptoms and tablet usages for 24 weeks. Patients underwent upper GI endoscopy at 24 weeks. Symptom relief was defined as no symptoms for>6 days during a week. The numbers of patients who achieved symptom relief and mucosal healing were compared between the new-onset and recurrent groups in the continuous arm and in the on-demand arm, respectively. RESULTS Among new-onset GERD [n=82 (continuous: 42 patients, on-demand: 40)], continuous arm achieved significant symptom-relief than in on-demand arm at 4*,5*,6** and 17*week. Among recurrent GERD [n=36(continuous: 17 patients, on-demand: 19)], continuous arm achieved significant symptom-relief at 1**,2*,3*,4*,5**,7**,8**,17* and 18* week, respectively (*<0.05,**<0.01). The number of healed patients was significantly higher in new-onset group (60/68, 88.2%) than in recurrent group (17/30, 56.7%) (<0.01). CONCLUSION Since therapeutic response during maintenance therapy was poor in recurrent GERD, continuous therapy is recommended in order to maintain symptom-relief and mucosal healing. Hippokratia 2015, 19 (1): 53-56.
Collapse
|
75
|
Matsuura K, Tanaka Y, Watanabe T, Fujiwara K, Orito E, Kurosaki M, Izumi N, Sakamoto N, Enomoto N, Yatsuhashi H, Kusakabe A, Shinkai N, Nojiri S, Joh T, Mizokami M. ITPA genetic variants influence efficacy of PEG-IFN/RBV therapy in older patients infected with HCV genotype 1 and favourable IL28B type. J Viral Hepat 2014; 21:466-74. [PMID: 24750345 DOI: 10.1111/jvh.12171] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/01/2013] [Accepted: 07/18/2013] [Indexed: 01/22/2023]
Abstract
Inosine triphosphatase (ITPA) genetic variants are strongly associated with ribavirin (RBV)-induced anaemia during pegylated interferon (PEG-IFN) plus RBV therapy. However, the treatment efficacy of ITPA genetic variants has not been fully explored. We enrolled 309 individuals infected with hepatitis C virus genotype 1, who were treated with PEG-IFN plus RBV for 48 weeks. The ITPA SNP: rs1127354 and IL28B SNP: rs8099917 were genotyped. We examined the risk factors for severe anaemia up to week 12 after the start of treatment and treatment efficacy. The incidence of severe anaemia, ≥ 3 g/dL reduction or <10 g/dL of haemoglobin (Hb) up to week 12, was more frequent in patients with CC at rs1127354 [65% (145/224), 33% (73/224)] than in those with CA/AA [25% (21/85), 6% (8/85)] (P < 0.0001). ITPA genotype, pretreatment Hb level and age were independent predictive factors for severe anaemia: Hb < 10 g/dL. In IL28B favourable type, the sustained virologic response rate was higher in ≥ 60-year-old patients with CA/AA than in those with CC [71% (22/31) vs 40% (26/65), P = 0.005], although there was no significant difference in treatment efficacy according to ITPA genetic variants in the <60-year-old patients. The proportion of patients administered ≥ 80% of the dosage of RBV was significantly higher in the patients with CA/AA than in those with CC (P = 0.025), resulting in a lower relapse rate. In conclusion, ITPA genetic variants were associated with severe RBV-induced anaemia and could influence the efficacy of PEG-IFN plus RBV treatment among elderly patients with IL28B favourable type.
Collapse
|