Kaizo Kagemoto, Koichi Okamoto and Tetsuji Takayama : 大腸ポリープ・ポリポーシス・大腸腺腫(1. 消化管疾患)., 総合医学社, Tokyo, Apr. 2021.
Academic Paper (Judged Full Paper):
1.
Koichi Okamoto, Tomoyuki Kawaguchi, Kaizo Kagemoto, Yoshifumi Kida, Yasuhiro Mitsui, Fumika Nakamura, Kouzou Yoshikawa, Masahiro Sogabe, Yasushi Sato, Joji Shunto, Yoshimi Bando, Mitsuo Shimada and Tetsuji Takayama : 2)Gastric fundic gland polyposis and cancer development after eradication of Helicobacter pylori in patient with gastric adenocarcinoma and proximal polyposis of the stomach (GAPPS)., Gastric Cancer, Vol.27, No.3, 635-640, 2024.
(Summary)
A 44-year-old woman with gastric cancer (GC) and fundic gland polyposis (FGPs) was referred to our hospital for further diagnosis and treatment. She successfully underwent eradication therapy for Helicobacter pylori (HP) 6 years ago, but did not exhibit FGPs at that time. When she underwent an esophagogastroduodenoscopy 2, 4, and 5 years after the eradication of HP, her imaging results revealed the existence of FGPs which gradually increased in her gastric fundus and body. Gastric adenocarcinoma and proximal polyposis of the stomach (GAPPS) was suspected and a mutational analysis was performed, revealing an APC promoter 1B variant c.-191T > C. A robotic total gastrectomy with lymphadenectomy was performed. Histopathological analysis of the surgical specimens revealed GC with no lymph node metastasis. GAPPS is characterized by GC and FGPs. However, our case shows different gastric phenotypes that are dependent on the status of HP infection.
Masahiro Sogabe, Toshiya Okahisa, Miwako Kagawa, Takanori Kashihara, shota Fujimoto, Tomoyuki Kawaguchi, reiko yokoyama, Kaizo Kagemoto, Hironori Tanaka, Yoshifumi Kida, Tetsu Tomonari, Yutaka Kawano, Yasushi Sato, Masahiko Nakasono and Tetsuji Takayama : Impact of alcohol consumption on metabolic dysfunction-associated fatty liver disease development and remission: A longitudinal cohort study., European Journal of Clinical Investigation, Vol.Online ahead of print., e14221, 2024.
(Summary)
The influence of alcohol intake on metabolic dysfunction-associated fatty liver disease (MAFLD) development and remission remains unclear; thus, we aimed to investigate their longitudinal associations. This observational cohort study included 6349 patients who underwent more than two health check-ups over >2 years between April 2013 and March 2021. Generalized estimation equations were used to analyse the longitudinal associations between changes in alcohol intake and MAFLD according to repeated measures at baseline and the most recent stage. The MAFLD development and remission rates were 20.4 and 5.1 and 9.1 and 4.7% in men and women, respectively. Although alcohol consumption was not a significant factor for MAFLD development, consuming 0.1-69.9 g/week (odds ratio [OR]: 0.672, 95% confidence interval [CI]: 0.469-0.964, p < .05) and ≥280 g/week were significant factors for MAFLD development in males (OR: 1.796, 95% CI: 1.009-3.196, p < .05) and females (OR: 16.74, 95% CI: 3.877-72.24, p < .001). Regardless of quantity and frequency, alcohol consumption was not a significant factor for MAFLD remission. Several noninvasive liver fibrosis scores were significantly associated with alcohol intake quantity and frequency in males with MAFLD development and remission (p < .05). The nonalcoholic fatty liver disease fibrosis score differed significantly between males with and without reduced alcohol intake (p < .05) who showed MAFLD remission. Although the influence of alcohol intake on MAFLD development and remission differed, alcohol consumption was not beneficial for MAFLD remission in either sex. Alcohol intake reduction or cessation is recommended to prevent liver fibrosis, even in those who achieve MAFLD remission.
Masahiro Sogabe, Toshiya Okahisa, Miwako Kagawa, Motoko Sei, Hiroyuki Ueda, reiko yokoyama, Kaizo Kagemoto, Hironori Tanaka, Yoshifumi Kida, Fumika Nakamura, Tetsu Tomonari, Koichi Okamoto, Yutaka Kawano, Hiroshi Miyamoto, Yasushi Sato, Masahiko Nakasono and Tetsuji Takayama : Association of metabolic dysfunction-associated steatotic liver disease with erosive esophagitis development: a longitudinal observational study., Journal of Gastroenterology and Hepatology, Vol.Online ahead of print., 2024.
(Summary)
Although erosive esophagitis (EE) is associated with fatty liver and metabolic dysregulation, the association between EE and metabolic dysfunction-associated steatotic liver disease (MASLD) remains unclear. Thus, this study aimed to investigate the longitudinal association between MASLD and EE. We included 1578 patients without EE at baseline who underwent more than two health checkups over 2 years. Generalized estimation equations were used to analyze associations between MASLD and EE according to repeated measures at baseline and most recent stages. EE development rates in men and women were 14.5% and 7.2%, respectively. After adjusting for lifestyle habits, the odds ratios of MASLD for EE development in men and women were 1.907 (95% confidence interval [CI]: 1.289-2.832, P < 0.005) and 1.483 (95% CI: 0.783-2.811, P = 0.227), respectively. In the subgroup analysis, after adjusting for lifestyle habits, among men and women aged ≥50 years with more than three MASLD components, the odds ratios for EE development were 2.408 (95% CI: 1.505-3.855, P < 0.001) and 2.148 (95% CI: 1.093-4.221, P < 0.05), respectively. After adjusting for various factors, the significant risk factors for EE development were different between men and women. The influence of MASLD and other factors on EE development differed by sex and age. Particularly, patients aged ≥50 years with MASLD and with an increased number of MASLD components should be considered at increased risk for EE.
Masahiro Sogabe, Toshiya Okahisa, Miwako Kagawa, Motoko Sei, Kaizo Kagemoto, Hironori Tanaka, Yoshifumi Kida, Fumika Nakamura, Tetsu Tomonari, Koichi Okamoto, Hiroshi Miyamoto, Yasushi Sato, Masahiko Nakasono and Tetsuji Takayama : Association of metabolic dysfunction-associated fatty liver disease with gallstone development: A longitudinal study., Journal of Gastroenterology and Hepatology, Vol.Online ahead of print., 2024.
(Summary)
The influence of metabolic dysfunction-associated fatty liver disease on gallstone development remains unclear. We aimed to investigate the longitudinal association between metabolic dysfunction-associated fatty liver disease and gallstone development in both men and women. This observational cohort study included 5398 patients without gallstones who underwent > 2 health check-ups between April 1, 2014, and March 31, 2020. A generalized estimation equation model was used to analyze the association between metabolic dysfunction-associated fatty liver disease and gallstone development according to repeated measures at baseline and most recent stage. After adjustment, the odds ratios of metabolic dysfunction-associated fatty liver disease for gallstone development in men and women were 3.019 (95% confidence interval [CI]: 1.901-4.794) and 2.201 (95% CI: 1.321-3.667), respectively. Among patients aged ≥ 50 years, the odds ratio for gallstone development was significantly enhanced with increasing metabolic dysfunction-associated fatty liver disease component numbers in both sexes; however, no significance was observed in those aged < 50 years. Other significant risk factors for gallstone development were age (odds ratio: 1.093, 95% CI: 1.060-1.126) and waist circumference (odds ratio: 1.048, 95% CI: 1.018-1.079) in men and age (odds ratio: 1.035, 95% CI: 1.003-1.067) and current smoking (odd ratio: 5.465, 95% CI: 1.881-15.88) in women. Although the risk factors for gallstone development differed between sexes, metabolic dysfunction-associated fatty liver disease was common. Paying attention to an increase in the number of metabolic dysfunction-associated fatty liver disease components in patients aged ≥ 50 years is important for gallstone prevention.
Reiko Yokoyama, Yasushi Sato, Fumika Nakamura, Kaizo Kagemoto, Yasuhiro Mitsui, Koichi Okamoto, Yutaka Kawano, Masahiro Sogabe, Hiroshi Miyamoto and Tetsuji Takayama : Efficacy of immune checkpoint inhibitors in patients with anorectal melanoma in association with immune-related adverse events: a case series., Clinical Journal of Gastroenterology, Vol.Online ahead of print., 2023.
(Summary)
Anorectal melanoma (AM) is a rare subtype of mucosal melanoma with a poor prognosis. Given its rarity compared to its cutaneous counterpart, the benefits and side effects of immune checkpoint inhibitor (ICI) therapy and the relationship between side effects and prognosis remain unclear. Herein, we describe the clinical presentation of five patients with AM treated with ICI as well as their relationship to the treatment course and the development of immune-related adverse events (irAEs). Three patients received sequential or concurrent administrations of nivolumab and ipilimumab, one received nivolumab alone, and one received ipilimumab alone. The response rate (RR) and disease control rate (DCR) were 40% and 80%, respectively. Pituitary and hepatic dysfunctions were the most common irAEs observed (40% each), followed by thyroid, diarrhea, and renal dysfunctions (20% each). The RR was 67% in patients with irAEs while no response was observed in patients without irAEs. DCR was 100% and 50% in patients with and without irAEs, respectively. Overall survival was 34 months in irAE and 8.75 months in non-irAE cases, with a longer survival trend in irAE cases. ICI therapy was effective and well-tolerated by AM patients, with potentially better outcomes for those who experienced irAEs compared to those who did not.
Masahiro Sogabe, Toshiya Okahisa, Miwako Kagawa, Hiroyuki Ueda, Kaizo Kagemoto, Hironori Tanaka, Yoshifumi Kida, Tetsu Tomonari, Tatsuya Taniguchi, Koichi Okamoto, Hiroshi Miyamoto, Yasushi Sato, Masahiko Nakasono and Tetsuji Takayama : Influence of alcohol on newly developed metabolic dysfunction-associated fatty liver disease in both sexes: A longitudinal study., Clinical Nutrition, Vol.42, No.5, 810-816, 2023.
(Summary)
The influence of changes in alcohol consumption on newly developed metabolic dysfunction-associated fatty liver disease (MAFLD) is unclear. We investigated the influence of alcohol consumption on newly developed MAFLD in both sexes. This observational cohort study included 4071 patients who underwent more than two health check-ups between 2015 and 2020 over an interval of more than a year. Generalised estimating equations were used for analyses. At baseline, the rates of drinking and MAFLD between men and women were 72.5% versus 41.7% and 42.2% versus 22.1%, respectively. At the most recent stage, the rates of an increase in alcohol consumption for men and women were 13.3% and 8.7%, respectively, and 311/1192 (26.1%) men and 155/1566 (9.9%) women had newly developed MAFLD. The odds ratio (OR) for drinking in patients with newly developed MAFLD was 0.863 (men) (95% confidence interval [CI], 0.676-1.102, p = 0.237) and 1.041 (women) (95% CI, 0.753-1.439, p = 0.808); the OR for women who drank 140-279.9 g/week was 2.135 (95% CI, 1.158-3.939, p < 0.05) and that for all drinking categories among women was >1. Several non-invasive fibrosis scores were significantly associated with the quantity of alcohol consumption in patients with newly developed MAFLD (p < 0.005). Alcohol consumption had no significant protective effect against newly developed MAFLD in both sexes, regardless of quantity. Conversely, alcohol consumption ≥140 g/week was a risk factor for newly developed MAFLD in women. The development of liver fibrosis with increased alcohol intake should be considered in patients with MAFLD.
Megumi Yamasaki, Yasushi Sato, Koichi Okamoto, Akira Fukuya, Tomoyuki Kawaguchi, Kazuyoshi Noda, Kaizo Kagemoto, Yasuhiro Mitsui, Hiroshi Miyamoto and Tetsuji Takayama : Two cases of anal squamous cell carcinoma achieving complete response after docetaxel + cisplatin + S1 (DCS) induction chemotherapy followed by chemoradiation., Clinical Journal of Gastroenterology, Vol.16, No.2, 180-186, 2022.
(Summary)
Anal squamous cell carcinoma (ASCC) is an uncommon tumor. However, its incidence is increasing worldwide. Surgical resection of locally advanced cases requires permanent anal prosthesis. Thus, chemoradiotherapy (CRT) is preferred as the first-line treatment; however, high local recurrence rate remains an issue. Here, we describe two cases of locally advanced ASCC treated with docetaxel + cisplatin + S-1 (DCS) followed by CRT with S-1 that showed complete response. The two patients, aged 69 and 65 years, were diagnosed with ASCC (cStage IIIB) at our hospital. Due to extensive lymph node metastases, the patients were treated with triple induction chemotherapy (DCS) followed by CRT with S-1. Positron emission tomography/computed tomography performed six months after starting the treatment showed disappearance of tumors, indicating a complete response. The patients continued to receive S-1 for one year and achieved relapse-free long-term survival since the completion of treatment. Therefore, induction chemotherapy with DCS, prior to CRT with S-1 may benefit patients with locally advanced ASCC.
hironori wada, Yasuteru Fujino, Kaizo Kagemoto, Yoshifumi Kida, Yasuyuki Okada, Yasuhiro Mitsui, Koichi Okamoto, Yasushi Sato, Yoshimi Bando, Hiroshi Miyamoto and Tetsuji Takayama : Gastric cancer genome profiling reveals HER2 false-negative status and informs a successful trastuzumab treatment strategy, The Japanese Journal of Gastro-enterology, Vol.119, No.10, 937-945, 2022.
(Summary)
Intratumoral HER2 heterogeneity is a well-described gastric cancer feature and may explain many false-negative results related to this oncogene. An 81-year-old man was diagnosed at our hospital with stage IV gastric cancer with multiple lymph node metastases. Immunohistochemistry (IHC) analysis indicated that the primary tumor was HER2-negative. After a chemotherapy course, we submitted a pretreatment biopsy specimen for comprehensive cancer genome profiling (CGP) to determine the last-line therapy. This revealed HER2 amplification. The specimen was reevaluated using fluorescence in situ hybridization and IHC with deeper-cut specimens, which confirmed that the tumor was indeed HER2-positive. Therefore, the patient was treated with chemotherapy plus trastuzumab, which elicited tumor shrinkage and conferred long-term survival. Our current data underscore the CGP importance, which can provide more accurate tumor profilings and inform subsequent treatment decisions.