1.Overlap Syndrome of Functional Dyspepsia and Irritable Bowel Syndrome - Are Both Diseases Mutually Exclusive?.
Hidekazu SUZUKI ; Toshifumi HIBI
Journal of Neurogastroenterology and Motility 2011;17(4):360-365
Among functional gastrointestinal (GI) disorders, functional dyspepsia (FD) and irritable bowel syndrome (IBS) are important to public health around the world and are frequently encountered in general practice. Upper GI symptoms such as heartburn, postprandial fullness, early satiety, epigastric pain or burning and lower GI symptoms such as constipation and diarrhea often coexist. Although the prevalence of FD-IBS overlap would be influenced by the selection of the study population, the overlap rate of FD-IBS could be in the range of 11%-27%. Specifically, FD-IBS overlap is associated with more severe symptoms than FD alone or IBS alone. Since clinical overlap, especially FD-IBS overlap, is very common, the 2 syndromes should not be treated in a mutually exclusive fashion.
Burns
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Constipation
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Diarrhea
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Dyspepsia
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General Practice
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Heartburn
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Irritable Bowel Syndrome
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Prevalence
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Public Health
3.Ghrelin - A Novel Appetite-stimulating Hormone Which Also Affects Gastrointestinal Functions.
Hidekazu SUZUKI ; Tatsuhiro MASAOKA ; Toshifumi HIBI
The Korean Journal of Gastroenterology 2006;48(2):82-88
Ghrelin, a novel gastrointestinal peptide with 28 amino acids, is secreted from the A-like cells of the gastric fundus. This peptide hormone does not only promote the release of growth hormone, but also stimulates food intake, gastric motility and cardiac output. Increased plasma ghrelin level has been reported in patients with upper gastrointestinal (GI) disease or in their disease animal model, suggesting its important role in the pathogenesis of upper GI disease.
Appetite/*physiology
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Cysteamine/metabolism
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Dyspepsia/etiology
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*Eating
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Gastrointestinal Diseases/*etiology
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Ghrelin/*physiology
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Humans
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Peptic Ulcer/etiology
4.Efficacy and safety of two pH-dependent-release mesalamine doses in moderately active ulcerative colitis: a multicenter, randomized, double-blind, parallel-group study.
Yasuo SUZUKI ; Mitsuo IIDA ; Hiroaki ITO ; Isamu SAIDA ; Toshifumi HIBI
Intestinal Research 2016;14(1):50-59
BACKGROUND/AIMS: The therapeutic effect of mesalamine is considered to be dose-dependent; however, no consensus has been reached regarding the optimal doses for individual patients. This study aimed to provide new insight for dose optimization using two doses of pH-dependent release mesalamine for induction of remission of moderately active ulcerative colitis (UC). METHODS: In a multicenter, double-blind, randomized study, 110 patients with moderately active UC were assigned to two groups after treatment with a constant dose of mesalamine. Fifty-five patients were treated with a pH-dependent release formulation of 3.6 or 4.8 g/day for 8 weeks. The primary endpoint was a decrease in the UC disease activity index (UCDAI) adjusted by covariates. RESULTS: In the full analysis set (n=110), the mean decrease in UCDAI was 3.1 in the 3.6 g/day group and 3.4 in the 4.8 g/day group (P>0.05). In a subgroup analysis, the effectiveness of the 4.8 g/day dose was greater in particular populations, such as those who had been previously treated with a lower dose of mesalamine and those with more severe disease. The safety was comparable between the two groups. CONCLUSIONS: The results suggest that treatment with pH-dependent release mesalamine at either 3.6 or 4.8 g/day was effective and safe for the induction of remission in patients with moderately active UC. However, the patients receiving mesalamine at 2.4 g/day but in whom the therapeutic effect is not sufficient and having more severe symptoms (UCDAI 9-10), benefit from higher doses of mesalamine compared to others.
Colitis, Ulcerative*
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Consensus
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Double-Blind Method
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Humans
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Mesalamine*
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Remission Induction
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Ulcer*
5.Helicobacter pylori and Gastric Mucosa-associated Lymphoid Tissue (MALT) Lymphoma: Updated Review of Clinical Outcomes and the Molecular Pathogenesis.
Hidekazu SUZUKI ; Yoshimasa SAITO ; Toshifumi HIBI
Gut and Liver 2009;3(2):81-87
In most H. pylori-positive patients, gastric low-grade mucosa-associated lymphoid tissue (MALT) lymphomas regress both endoscopically and histopathologically after H. pylori eradication, but no factors that can be predictive of the response to the eradication have been definitively identified, and there is little information on how to determine the optimal observation period before additional treatment can be started. Here, clinical studies dealing with the diagnosis and treatment of gastric MALT lymphomas and H. pylori published during the last 5 years were systematically reviewed, and studies identifying the molecular approaches involved in the pathogenesis were summarized. Most of the clinical studies indicate a favorable effect of H. pylori eradication on the clinical outcome of gastric MALT lymphomas. Some studies suggest the necessity of additional treatment in nonresponders to H. pylori eradication, while others suggest the adoption of a watch-and-wait strategy. The molecular characteristics of MALT lymphomas could play an important role in prognostic prediction and the selection of further therapeutic intervention after the eradication. This updated review of gastric MALT lymphomas illustrates the potential efficacy of H. pylori eradication in tumor remission, but further molecular characterization is necessary to establish the most suitable therapeutic strategy for patients who do not respond to eradication.
Adoption
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Helicobacter
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Helicobacter pylori
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Humans
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Lymphoid Tissue
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Lymphoma
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Lymphoma, B-Cell, Marginal Zone
6.Efficacy of Solifenacin on Irritable Bowel Syndrome With Diarrhea: Open-label Prospective Pilot Trial.
Yasushi FUKUSHIMA ; Hidekazu SUZUKI ; Juntaro MATSUZAKI ; Arihiro KIYOSUE ; Toshifumi HIBI
Journal of Neurogastroenterology and Motility 2012;18(3):317-323
BACKGROUND/AIMS: Solifenacin, a muscarinic type 3 receptor antagonist, is used to treat overactive bladder in adults. The aim of this study is to examine the efficacy of solifenacin on the symptomatic relief of diarrhea predominant irritable bowel syndrome (IBS-D). METHODS: A total of 20 patients with IBS-D were enrolled. After a 2-week observation period, all participants received solifenacin for 6 weeks. Subsequently, the administration of solifenacin was discontinued and ramosetron, a serotonin 3 receptor antagonist, was administered for 4 weeks. Overall improvement, the IBS-symptom severity scale (IBS-SSS), and frequency of defecation were assessed. RESULTS: Six weeks after initiation of solifenacin treatment and 4 weeks after initiation of ramosetron treatment, overall improvement was observed in 19 out of 20 (95%) and 17 out of 20 (85%) participants, respectively. At 2 weeks after initiation of solifenacin, overall improvement was observed in 16 out of 20 participants (80%). Total IBS-SSS scores at 2 and 6 weeks after the administration of solifenacin, and at 4 weeks after administration of ramosetron, were significantly lower than those at week 0. Compared to before administration, the participants' quality of life and frequency of defecation were significantly lower in all participants at 2 and 6 weeks after the administration of solifenacin and at 4 weeks after administration of ramosetron. CONCLUSIONS: The efficacy of solifenacin in the treatment of IBS with diarrhea was not inferior to that of ramosetron. Further placebo-controlled parallel studies are needed.
Adult
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Benzimidazoles
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Defecation
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Diarrhea
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Humans
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Irritable Bowel Syndrome
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Prospective Studies
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Quality of Life
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Quinuclidines
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Receptors, Serotonin, 5-HT3
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Tetrahydroisoquinolines
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Urinary Bladder
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Urinary Bladder, Overactive
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Solifenacin Succinate
7.Skeletal related events in non-small cell lung cancer with bone metastases
Koji Sato ; Nobuhiro Saruki ; Hisashi Hosaka ; Tadashi Murakami ; Yuki Takada ; Akiko Matsunuma ; Kuniaki Suzuki ; Toshifumi Kazama ; Koichi Minato
Palliative Care Research 2010;5(2):145-151
Purpose: Bone is one of the most common sites of metastases in patients with advanced lung cancer. Skeletal complications may cause significant morbidity and decrease performance status (PS). Such complications, referred to as skeletal related events (SREs), include severe bone pain, pathological fractures, spinal cord compression, and hypercalcemia of malignancy. We assessed the clinical impact of SREs in non-small lung cancer (NSCLC) patients with bone metastases. Methods: We retrospectively investigated the clinical records of all 120 patients who were diagnosed advanced NSCLC with bone metastases between June 1998 and March 2009. Results: A total of 23 patients (26.7%) were found to have SREs at the time of initial diagnosis. The median survival time (MST) was 123 days for patients with SREs, while it increased to 276 days for those without SREs. The MST of the patients with SREs were significantly shorter than that of the patients without SREs (p<0.001). We also studied the SREs during clinical courses of 89 patients whose records were available over 3 months. A total of 39 patients (43.8%) were found to have SREs during clinical courses. Conclusion: The patients in NSCLC with bone metastases were often found to have SREs. SREs cause significant morbidity and deterioration of PS. Systemic chemotherapy could not decrease SREs during their clinical courses. Further studies evaluating bisphosphonates in combination with chemotherapy are warranted. Palliat Care Res 2010; 5(2): 145-151
9.Efficacy and safety of abrilumab, an α4β7 integrin inhibitor, in Japanese patients with moderate-to-severe ulcerative colitis: a phase II study
Toshifumi HIBI ; Satoshi MOTOYA ; Toshifumi ASHIDA ; Souken SAI ; Yukinori SAMESHIMA ; Shiro NAKAMURA ; Atsuo MAEMOTO ; Masahiro NII ; Barbara A SULLIVAN ; Robert A GASSER JR ; Yasuo SUZUKI
Intestinal Research 2019;17(3):375-386
BACKGROUND/AIMS: Inhibition of α4β7 integrin has been shown to be effective for induction and maintenance therapy in patients with ulcerative colitis (UC). We investigated the effects of varying doses of the α4β7 inhibitor abrilumab in Japanese patients with moderate-to-severe UC despite conventional treatments. METHODS: In this randomized, double-blind, placebo-controlled study, 45 UC patients were randomized to abrilumab 21 mg (n=11), 70 mg (n=12), 210 mg (n=9), or placebo (n=13) via subcutaneous (SC) injection for 12 weeks. The double-blind period was followed by a 36-week open-label period, in which all patients received abrilumab 210 mg SC every 12 weeks, and a 28-week safety follow-up period. The primary efficacy variable was clinical remission at week 8 (total Mayo score ≤2 points with no individual subscore >1 point). RESULTS: Clinical remission at week 8 was 4 out of 31 (12.9%) overall in the abrilumab groups versus 0 out of 13 in the placebo group (abrilumab 21 mg, 1/10 [10.0%]; 70 mg, 2/12 [16.7%]; 210 mg, 1/9 [11.1%]). In both the double-blind and open-label periods, fewer patients in the abrilumab groups experienced ≥1 adverse event compared with those in the placebo group. There were no cases of progressive multifocal leukoencephalopathy and no deaths. CONCLUSIONS: Abrilumab 70 mg and 210 mg yielded numerically better results in terms of clinical remission rate at Week 8 than placebo, with the 210 mg dose showing more consistent treatment effects. Abrilumab was well tolerated in Japanese patients with UC.
Asian Continental Ancestry Group
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Colitis, Ulcerative
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Follow-Up Studies
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Humans
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Japan
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Leukoencephalopathy, Progressive Multifocal
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Ulcer
10.What Is the Difference Between Helicobacter pylori-Associated Dyspepsia and Functional Dyspepsia?.
Hidekazu SUZUKI ; Juntaro MATSUZAKI ; Toshifumi HIBI
Journal of Neurogastroenterology and Motility 2011;17(2):124-130
Advances in basic and clinical research have revealed that Helicobacter pylori (H. pylori) infection plays an important role in the development of gastroduodenal dysmotility and hypersensitivity, as also in dyspepsia symptoms. In addition, recent studies have proposed an inflammation-immunological model for the pathogenesis of functional dyspepsia. Since H. pylori is the major microbe that provokes a gastroduodenal inflammatory response, it should not be overlooked when considering the pathophysiology of dyspepsia symptoms. In fact, population-based studies have demonstrated that H. pylori is detected more frequently in dyspepsia patients. However, although many clinical studies tried to reveal the association of H. pylori infection with gastric motility dysfunction or hypersensitivity, the results have been conflicting. On the other hand, many etiological features were revealed for the development of H. pylori-associated dyspepsia, such as abnormal ghrelin or leptic secretion, altered expression of muscle-specific microRNAs, and duodenal inflammatory cell infiltration. In addition, therapeutic strategy for H. pylori-associated dyspepsia would be different from H. pylori-negative functional dyspepsia. This review focuses the issue of whether H. pylori-associated dyspepsia should be considered as a different disease entity from functional dyspepsia.
Duodenum
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Dyspepsia
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Ghrelin
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Hand
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Helicobacter
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Helicobacter pylori
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Humans
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Hypersensitivity
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MicroRNAs