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Hirose Y, Kinoshita A, Satou Y, Ishimoto U, Satou M, Mizuno Y, Itagaki M, Ikeda K, Koike K, Saruta M. [A difficult case of a stent-stone complex removal with endoscopic lithotomy]. Nihon Shokakibyo Gakkai Zasshi 2020; 117:1001-1007. [PMID: 33177252 DOI: 10.11405/nisshoshi.117.1001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
An 88-year-old patient had undergone endoscopic stenting for the treatment of acute cholangitis caused by choledocholithiasis. After a year and two months, he presented with cholangitis caused by common bile duct stones that formed a stent-stone complex. Another stent was observed adjacent to the old stent;however, the cholangitis relapsed in a short term. Thus, we planned to remove as many stones as possible. These stones were not free-floating and had affected the bile duct. Endoscopic mechanical lithotripsy was attempted;however, it failed. He was successfully treated using peroral cholangioscopy and electrohydraulic lithotripsy. After three months, he developed cholangitis because of the recurrence of choledocholithiasis. After removing as many stones as possible and performing endoscopic stenting, he was followed up as an outpatient. He had no symptoms for seven months after the procedure.
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Affiliation(s)
- Yuki Hirose
- Division of Gastroenterology and Hepatology, the Jikei University Daisan Hospital
| | - Akiyoshi Kinoshita
- Division of Gastroenterology and Hepatology, the Jikei University Daisan Hospital
| | - Yuko Satou
- Division of Gastroenterology and Hepatology, the Jikei University Daisan Hospital
| | - Utako Ishimoto
- Division of Gastroenterology and Hepatology, the Jikei University Daisan Hospital
| | - Masako Satou
- Division of Gastroenterology and Hepatology, the Jikei University Daisan Hospital
| | - Yuusuke Mizuno
- Division of Gastroenterology and Hepatology, the Jikei University Daisan Hospital
| | - Munenori Itagaki
- Division of Gastroenterology and Hepatology, the Jikei University Daisan Hospital
| | - Keiichi Ikeda
- Division of Endoscopy, the Jikei University Daisan Hospital
| | - Kazuhiko Koike
- Division of Gastroenterology and Hepatology, the Jikei University Daisan Hospital
| | - Masayuki Saruta
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, the Jikei University School of Medicine
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Arihiro S, Nakashima A, Matsuoka M, Suto S, Uchiyama K, Kato T, Mitobe J, Komoike N, Itagaki M, Miyakawa Y, Koido S, Hokari A, Saruta M, Tajiri H, Matsuura T, Urashima M. Randomized Trial of Vitamin D Supplementation to Prevent Seasonal Influenza and Upper Respiratory Infection in Patients With Inflammatory Bowel Disease. Inflamm Bowel Dis 2019; 25:1088-1095. [PMID: 30601999 PMCID: PMC6499936 DOI: 10.1093/ibd/izy346] [Citation(s) in RCA: 60] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/13/2018] [Indexed: 02/06/2023]
Abstract
BACKGROUND We evaluated whether oral vitamin D supplementation during the winter and early spring reduces the incidence of influenza and upper respiratory infections in patients with inflammatory bowel disease (IBD). METHODS A randomized, double-blind, controlled trial was conducted to compare the effects of vitamin D supplementation (500 IU/day) and a placebo. The primary outcome was the incidence of influenza; the secondary outcome was the incidence of upper respiratory infection. Prespecified subgroup analyses were performed according to 25-hydroxyvitamin D (25-OHD) levels (low <20 ng/mL or high ≥20 ng/mL) and whether ulcerative colitis (UC) or Crohn's disease (CD) was present. We also used the Lichtiger clinical activity index for patients with UC and the Crohn's Disease Activity Index (CDAI) for patients with CD before and after interventions. RESULTS We included 223 patients with IBD and randomized them into 2 groups: vitamin D supplementation (n = 108) and placebo (n = 115). The incidence of influenza did not differ between the groups. However, the incidence of upper respiratory infection was significantly lower in the vitamin D group (relative risk [RR], 0.59; 95% confidence interval (CI), 0.35-0.98; P = 0.042). This effect was enhanced in the low 25-OHD level subgroup (RR, 0.36; 95% CI, 0.14-0.90; P = 0.02). With respect to adverse events, the Lichtiger clinical activity index score was significantly worse in the vitamin D group (P = 0.002) and remained significant only in the high 25-OHD level subgroup. CONCLUSIONS Vitamin D supplementation may have a preventative effect against upper respiratory infection in patients with IBD but may worsen the symptoms of UC.
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Affiliation(s)
- Seiji Arihiro
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, The Jikei University Katsushika Medical Center,Tokyo, Japan
| | - Akio Nakashima
- Division of Nephrology and Hypertension, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan,Division of Molecular Epidemiology, The Jikei University School of Medicine, Tokyo, Japan
| | - Mika Matsuoka
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | - Satoshi Suto
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, The Jikei University Katsushika Medical Center,Tokyo, Japan
| | - Kan Uchiyama
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, The Jikei University Kashiwa Hospital, Chiba, Japan
| | - Tomohiro Kato
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | - Jimi Mitobe
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | - Nobuhiko Komoike
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | - Munenori Itagaki
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, The Jikei University Katsushika Medical Center,Tokyo, Japan
| | - Yoshinari Miyakawa
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, The Jikei University Daisan Hospital, Tokyo, Japan
| | - Shigeo Koido
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, The Jikei University Kashiwa Hospital, Chiba, Japan
| | - Atsushi Hokari
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, The Jikei University Katsushika Medical Center,Tokyo, Japan
| | - Masayuki Saruta
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | - Hisao Tajiri
- Department of Innovative Interventional Endoscopy Research, The Jikei University School of Medicine, Tokyo, Japan
| | - Tomokazu Matsuura
- Department of Internal Medicine, Department of Laboratory Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | - Mitsuyoshi Urashima
- Division of Molecular Epidemiology, The Jikei University School of Medicine, Tokyo, Japan,Address correspondence to: Mitsuyoshi Urashima MD, MPH, PhD, Division of Molecular Epidemiology, Jikei University School of Medicine, Nishi-shimbashi 3-25-8, Minato-ku, Tokyo 105–8461, Japan. E-mail:
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Purwadi MD, Tsuji M, Narita M, Itagaki M. A Hierarchical Domain Decomposition Boundary Element Method Applied to the Multiregion Problems of Neutron Diffusion Equations. NUCL SCI ENG 2017. [DOI: 10.13182/nse98-a1966] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- M. Dhandhang Purwadi
- Hokkaido University, Faculty of Engineering, Department of Quantum Energy Engineering Kita 13, Nishi 8, Kita-ku, Sapporo 060-0813, Japan
| | - M. Tsuji
- Hokkaido University, Faculty of Engineering, Department of Quantum Energy Engineering Kita 13, Nishi 8, Kita-ku, Sapporo 060-0813, Japan
| | - M. Narita
- Hokkaido University, Faculty of Engineering, Department of Quantum Energy Engineering Kita 13, Nishi 8, Kita-ku, Sapporo 060-0813, Japan
| | - M. Itagaki
- Hokkaido University, Faculty of Engineering, Department of Quantum Energy Engineering Kita 13, Nishi 8, Kita-ku, Sapporo 060-0813, Japan
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Kinoshita C, Nagano T, Seki N, Tomita Y, Sugita T, Aida Y, Itagaki M, Satoh K, Sutoh S, Abe H, Tsubota A, Aizawa Y. Hepatitis C virus G1b infection decreases the number of small low-density lipoprotein particles. World J Gastroenterol 2016; 22:6716-6725. [PMID: 27547014 PMCID: PMC4970482 DOI: 10.3748/wjg.v22.i29.6716] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/30/2016] [Revised: 06/11/2016] [Accepted: 07/06/2016] [Indexed: 02/06/2023] Open
Abstract
AIM: To investigate how hepatitis C virus (HCV) G1b infection influences the particle number of lipoproteins.
METHODS: The numbers of lipoprotein particles in fasting sera from 173 Japanese subjects, 82 with active HCV G1b infection (active HCV group) and 91 with cleared HCV infection (SVR group), were examined. Serum lipoprotein was fractionated by high-performance liquid chromatography into twenty fractions. The cholesterol and triglyceride concentrations in each fraction were measured using LipoSEARCH. The number of lipoprotein particles in each fraction was calculated using a newly developed algorithm, and the relationship between chronic HCV G1b infection and the lipoprotein particle number was determined by multiple linear regression analysis.
RESULTS: The median number of low-density lipoprotein (LDL) particles was significantly lower in the active HCV group [1182 nmol/L, interquartile range (IQR): 444 nmol/L] than in the SVR group (1363 nmol/L, IQR: 472 nmol/L, P < 0.001), as was that of high-density lipoprotein (HDL) particles (14168 nmol/L vs 15054 nmol/L, IQR: 4114 nmol/L vs 3385 nmol/L, P = 0.042). The number of very low-density lipoprotein (VLDL) particles was similar between the two groups. Among the four LDL sub-fractions, the number of large LDL particles was similar between the two groups. However, the numbers of medium (median: 533.0 nmol/L, IQR: 214.7 nmol/L vs median: 633.5 nmol/L, IQR: 229.6 nmol/L, P < 0.001), small (median: 190.9 nmol/L, IQR: 152.4 nmol/L vs median: 263.2 nmol/L, IQR: 159.9 nmol/L; P < 0.001), and very small LDL particles (median: 103.5 nmol/L, IQR: 66.8 nmol/L vs median: 139.3 nmol/L, IQR: 67.3 nmol/L, P < 0.001) were significantly lower in the active HCV group than in the SVR group, respectively. Multiple linear regression analysis indicated an association between HCV G1b infection and the decreased numbers of medium, small, and very small LDL particles. However, active HCV infection did not affect the number of large LDL particles or any sub-fractions of VLDL and HDL particles.
CONCLUSION: HCV G1b infection decreases the numbers of medium, small, and very small LDL particles.
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Abe T, Kato M, Itagaki M, Hamatani S, Kawahara Y, Ito S, Aizawa Y, Matsuda K, Sumiyama K. Endoscopic submucosal dissection for an atypical small verrucous carcinoma: a case report. J Med Case Rep 2016; 10:74. [PMID: 27036299 PMCID: PMC4818443 DOI: 10.1186/s13256-016-0866-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [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: 11/10/2015] [Accepted: 03/09/2016] [Indexed: 01/01/2023] Open
Abstract
Background Esophageal verrucous carcinoma is a rare variant of esophageal squamous cell carcinoma. In most cases, verrucous carcinoma presents as an exophytic, slow-growing mass with an extensive superficial growth pattern. Symptoms often include an insidious onset of dysphagia resulting in weight loss. In a patient presenting with super early-stage verrucous carcinoma, we were able to eliminate the aberration using endoscopic submucosal dissection. Case presentation An asymptomatic 68-year-old Asian man was found to have an abnormality in his esophagus. The abnormality was discovered, by chance, in a barium study for a health checkup. Esophagogastroduodenoscopy revealed a 1-centimeter polypoid lesion covered with squamous epithelium. Biopsies showed squamous high-grade intraepithelial neoplasia. An endoscopic submucosal dissection was performed and the histopathological findings showed a well-differentiated squamous cell carcinoma with hyperkeratosis with a church spire configuration. These features are consistent with the growth pattern of verrucous carcinoma. Conclusions Verrucous carcinoma can manifest as a small mass with nonclinical symptoms and endoscopic submucosal dissection is useful as a curative treatment. We must consider that verrucous carcinoma can manifest as appearance of a polyp that is not papillary or warty-like with and without extensive superficial growth appearance.
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Affiliation(s)
- Takahiro Abe
- Department of Endoscopy, The Jikei University Katsushika Medical Center, 6-41-2 Aoto Katsushika-ku, Tokyo, 125-8506, Japan
| | - Masayuki Kato
- Department of Endoscopy, The Jikei University Katsushika Medical Center, 6-41-2 Aoto Katsushika-ku, Tokyo, 125-8506, Japan.
| | - Munenori Itagaki
- Department of Gastroenterology and Hepatology, The Jikei University Katsushika Medical Center, 6-41-2 Aoto Katsushika-ku, Tokyo, 125-8506, Japan
| | - Sigeharu Hamatani
- Department of Pathology, Clinical Service, The Jikei University Katsushika Medical Center, 6-41-2 Aoto Katsushika-ku, Tokyo, 125-8506, Japan
| | - Yosuke Kawahara
- Department of Endoscopy, The Jikei University Katsushika Medical Center, 6-41-2 Aoto Katsushika-ku, Tokyo, 125-8506, Japan
| | - Shuji Ito
- Department of Endoscopy, The Jikei University Katsushika Medical Center, 6-41-2 Aoto Katsushika-ku, Tokyo, 125-8506, Japan
| | - Yoshio Aizawa
- Department of Gastroenterology and Hepatology, The Jikei University Katsushika Medical Center, 6-41-2 Aoto Katsushika-ku, Tokyo, 125-8506, Japan
| | - Koji Matsuda
- Department of Endoscopy, The Jikei University Katsushika Medical Center, 6-41-2 Aoto Katsushika-ku, Tokyo, 125-8506, Japan
| | - Kazuki Sumiyama
- Department of Endoscopy, The Jikei University School of Medicine, 3-25-8 Nishishinbashi Minato-ku, Tokyo, 105-8461, Japan
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Satoh K, Nagano T, Seki N, Tomita Y, Aida Y, Sugita T, Itagaki M, Sutoh S, Abe H, Aizawa Y. High level of serum cholesteryl ester transfer protein in active hepatitis C virus infection. World J Hepatol 2016; 8:291-300. [PMID: 26925203 PMCID: PMC4757652 DOI: 10.4254/wjh.v8.i5.291] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/27/2015] [Revised: 10/24/2015] [Accepted: 01/29/2016] [Indexed: 02/06/2023] Open
Abstract
AIM: To determine the significance of cholesteryl ester transfer protein (CETP) in lipoprotein abnormalities in chronic hepatitis C virus (HCV) infection.
METHODS: We evaluated the significance of the serum concentration of CETP in 110 Japanese patients with chronic HCV infection. Fifty-five patients had active HCV infection, and HCV eradication had been achieved in 55. The role of CETP in serum lipoprotein abnormalities, specifically, in triglyceride (TG) concentrations in the four major classes of lipoproteins, was investigated using Pearson correlations in conjunction with multiple regression analysis and compared them between those with active HCV infection and those in whom eradication had been achieved.
RESULTS: The serum CETP levels of patients with active HCV infection were significantly higher than those of patients in whom HCV eradication was achieved (mean ± SD, 2.84 ± 0.69 μg/mL vs 2.40 ± 1.00 μg/mL, P = 0.008). In multiple regression analysis, HCV infection status (active or eradicated) was an independent factor significantly associated with the serum CETP level. TG concentrations in low-density lipoprotein (mean ± SD, 36.25 ± 15.28 μg/mL vs 28.14 ± 9.94 μg/mL, P = 0.001) and high-density lipoprotein (HDL) (mean ± SD, 25.9 ± 7.34 μg/mL vs 17.17 ± 4.82 μg/mL, P < 0.001) were significantly higher in patients with active HCV infection than in those in whom HCV eradication was achieved. The CETP level was strongly correlated with HDL-TG in patients with active HCV infection (R = 0.557, P < 0.001), whereas CETP was not correlated with HDL-TG in patients in whom HCV eradication was achieved (R = -0.079, P = 0.56).
CONCLUSION: Our results indicate that CETP plays a role in abnormalities of lipoprotein metabolism in patients with chronic HCV infection.
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Abe H, Aida Y, Seki N, Sugita T, Tomita Y, Nagano T, Itagaki M, Sutoh S, Nagatsuma K, Itoh K, Matsuura T, Aizawa Y. Aldehyde dehydrogenase 2 polymorphism for development to hepatocellular carcinoma in East Asian alcoholic liver cirrhosis. J Gastroenterol Hepatol 2015; 30:1376-83. [PMID: 25778454 DOI: 10.1111/jgh.12948] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [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] [Accepted: 02/25/2015] [Indexed: 12/13/2022]
Abstract
BACKGROUND AND AIM We aimed to clarify the influences of aldehyde dehydrogenase 2 (ALDH2), alcohol dehydrogenase 1B (ADH1B) polymorphisms, and ethanol consumption profile to hepatocellular carcinoma (HCC) development in alcoholic liver cirrhosis without chronic hepatitis B and C virus infection (non-B non-C). METHODS Of 236 freshly diagnosed non-B non-C alcoholic liver cirrhosis patients, 67 were diagnosed as HCC and the remaining 169 as not having HCC. The relationship between the genetic polymorphisms and development to HCC were evaluated in well-matched patients with HCC (HCC group, n = 67) and without HCC (non-HCC group, n = 67) using propensity scores in age, sex, and prevalence of diabetes mellitus. RESULTS Daily amount of ethanol consumption was significantly lower (P = 0.005), and consumptive period was significantly longer (P = 0.003) in HCC group than non-HCC group. Of 134 well-matched patients, 113 (84.3%) had ALDH2*1/*1 genotype and 21 (15.7%) had ALDH2*1/*2 genotype. In HCC development, consumptive long period (P = 0.007) and carrying ALDH2*1/*2 genotype (P = 0.026) were identified as significant factors independently participated, while there was no relation to ADH1B polymorphism. In addition, consumptive period was significantly longer in HCC group than non-HCC group in ALDH2*1/*1 genotype patients (P = 0.0005), while there was no difference in profile of ethanol consumption in ALDH2*1/*2 genotype patients. Among HCC group, daily (P = 3.78 × 10(-6) ) and cumulative amount (P = 4.89 × 10(-6) ) of ethanol consumption were significantly higher in ALDH2*1/*1 genotype patients than ALDH2*1/*2 genotype patients. CONCLUSION In alcoholic liver cirrhosis, investigations of ALDH2 polymorphism and ethanol consumption profile are useful for prediction of HCC development.
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Affiliation(s)
- Hiroshi Abe
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Jikei University School of Medicine Katsushika Medical Center, Tokyo, Chiba, Japan
| | - Yuta Aida
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Jikei University School of Medicine Katsushika Medical Center, Tokyo, Chiba, Japan
| | - Nobuyoshi Seki
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Jikei University School of Medicine Katsushika Medical Center, Tokyo, Chiba, Japan
| | - Tomonori Sugita
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Jikei University School of Medicine Katsushika Medical Center, Tokyo, Chiba, Japan
| | - Yoichi Tomita
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Jikei University School of Medicine Katsushika Medical Center, Tokyo, Chiba, Japan
| | - Tomohisa Nagano
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Jikei University School of Medicine Katsushika Medical Center, Tokyo, Chiba, Japan
| | - Munenori Itagaki
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Jikei University School of Medicine Katsushika Medical Center, Tokyo, Chiba, Japan
| | - Satoshi Sutoh
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Jikei University School of Medicine Katsushika Medical Center, Tokyo, Chiba, Japan
| | | | - Kyoko Itoh
- Department of Laboratory Medicine, The Jikei University School of Medicine, Tokyo, Chiba, Japan
| | - Tomokazu Matsuura
- Department of Laboratory Medicine, The Jikei University School of Medicine, Tokyo, Chiba, Japan
| | - Yoshio Aizawa
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Jikei University School of Medicine Katsushika Medical Center, Tokyo, Chiba, Japan
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Nagano T, Seki N, Tomita Y, Sugita T, Aida Y, Itagaki M, Sutoh S, Abe H, Tsubota A, Aizawa Y. Impact of Chronic Hepatitis C Virus Genotype 1b Infection on Triglyceride Concentration in Serum Lipoprotein Fractions. Int J Mol Sci 2015; 16:20576-94. [PMID: 26334270 PMCID: PMC4613219 DOI: 10.3390/ijms160920576] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2015] [Revised: 08/13/2015] [Accepted: 08/20/2015] [Indexed: 12/14/2022] Open
Abstract
Reduced low-density lipoprotein (LDL) cholesterol level is a characteristic feature of dyslipidemia in chronic hepatitis C virus (HCV) infection. However, abnormality in serum triglyceride (TG) has not been fully investigated. To clarify the impact of HCV genotype 1b (G1b) infection and advanced fibrosis on serum TG profiles, TG concentrations in lipoprotein fractions were examined in fasting sera from 185 subjects with active or cleared HCV infection by high-performance liquid chromatography. Serum lipoproteins were fractionated into four classes: chylomicron, very low-density lipoprotein (VLDL), LDL, and high-density lipoprotein (HDL). Then, the significance of HCV G1b infection on TG levels in each lipoprotein fraction was determined using multiple regression models. We found that active HCV G1b infection was positively associated with high HDL-TG levels and low VLDL-TG levels, independent of other factors included in the regression model. In VLDL sub-fractions, active HCV infection was only found to be associated with low levels of large VLDL-TG. Similarly, advanced liver fibrosis in chronic HCV G1b infection was associated with high levels of LDL-TG, HDL-TG, and small VLDL-TG, independent of other clinical factors. These findings indicate that active HCV G1b infection and advanced fibrosis are closely associated with abnormal serum TG profiles.
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Affiliation(s)
- Tomohisa Nagano
- Department of Gastroenterology and Hepatology Internal Medicine, Jikei University Katsushika Medical Center, 6-41-2 Aoto, Katsushika-ku, Tokyo 125-8506, Japan.
| | - Nobuyoshi Seki
- Department of Gastroenterology and Hepatology Internal Medicine, Jikei University Katsushika Medical Center, 6-41-2 Aoto, Katsushika-ku, Tokyo 125-8506, Japan.
| | - Yoichi Tomita
- Department of Gastroenterology and Hepatology Internal Medicine, Jikei University Katsushika Medical Center, 6-41-2 Aoto, Katsushika-ku, Tokyo 125-8506, Japan.
| | - Tomonori Sugita
- Department of Gastroenterology and Hepatology Internal Medicine, Jikei University Katsushika Medical Center, 6-41-2 Aoto, Katsushika-ku, Tokyo 125-8506, Japan.
| | - Yuta Aida
- Department of Gastroenterology and Hepatology Internal Medicine, Jikei University Katsushika Medical Center, 6-41-2 Aoto, Katsushika-ku, Tokyo 125-8506, Japan.
| | - Munenori Itagaki
- Department of Gastroenterology and Hepatology Internal Medicine, Jikei University Katsushika Medical Center, 6-41-2 Aoto, Katsushika-ku, Tokyo 125-8506, Japan.
| | - Satoshi Sutoh
- Department of Gastroenterology and Hepatology Internal Medicine, Jikei University Katsushika Medical Center, 6-41-2 Aoto, Katsushika-ku, Tokyo 125-8506, Japan.
| | - Hiroshi Abe
- Department of Gastroenterology and Hepatology Internal Medicine, Jikei University Katsushika Medical Center, 6-41-2 Aoto, Katsushika-ku, Tokyo 125-8506, Japan.
| | - Akihito Tsubota
- Core Research Facilities for Basic Science, Research Center for Medical Science, Jikei University School of Medicine, 3-25-8 Nishi-Shimbashi, Minato-ku, Tokyo 105-8461, Japan.
| | - Yoshio Aizawa
- Department of Gastroenterology and Hepatology Internal Medicine, Jikei University Katsushika Medical Center, 6-41-2 Aoto, Katsushika-ku, Tokyo 125-8506, Japan.
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Ishiguro H, Abe H, Seki N, Sugita T, Aida Y, Itagaki M, Sutoh S, Shimada N, Furihata T, Tsubota A, Aizawa Y. Interferon-λ3 polymorphisms in pegylated-interferon-α plus ribavirin therapy for genotype-2 chronic hepatitis C. World J Gastroenterol 2015; 21:3904-11. [PMID: 25852275 PMCID: PMC4385537 DOI: 10.3748/wjg.v21.i13.3904] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/16/2014] [Revised: 11/29/2014] [Accepted: 01/16/2015] [Indexed: 02/06/2023] Open
Abstract
AIM To evaluate interferon-λ3 (IFNL3) polymorphisms in response-guided pegylated interferon-α plus ribavirin (Peg-IFNα/RBV) therapy for genotype 2 (G2) chronic hepatitis C. METHODS Between January 2006 and June 2012, a total of 180 patients with chronic infections of G2 hepatitis C virus (HCV) were treated with response-guided Peg-IFNα/RBV therapy. The treatment duration was 24 wk for patients who achieved rapid virologic response (RVR), and 36 or 48 wk for patients who did not. Then, the impact of the IFNL3 single nucleotide polymorphism genotype (TT/non-TT at rs8099917) on treatment outcomes was evaluated in the 180 patients, and between patients infected with either HCV sub-genotype 2a or 2b. RESULTS Of the 180 patients evaluated, 111 achieved RVR, while the remaining 69 patients did not. In RVR patients, the sustained virologic response (SVR) rate was 96.4%, and the IFNL3 genotype did not influence the SVR rate (96.6% vs 95.8% in IFNL3 genotype TT vs non-TT). However, in non-RVR patients, the SVR rate decreased to 72.5% (P < 0.0001), and this rate was significantly different between the IFNL3 genotype TT and non-TT groups (80.0% vs 42.9%, P = 0.0146). Multivariate regression analysis in non-RVR patients identified the IFNL3 genotype TT as the only baseline-significant factor associated with SVR (OR = 5.39, 95%CI: 1.29-22.62; P = 0.0189). In analysis according to HCV sub-genotype, no significant difference in the SVR rate was found between HCV sub-genotypes 2a and 2b. CONCLUSION In response-guided Peg-IFNα/RBV combination therapy for chronically HCV G2-infected patients, the impact of the IFNL3 genotype on SVR was limited to non-RVR patients.
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Aida Y, Abe H, Tomita Y, Nagano T, Seki N, Sugita T, Itagaki M, Ishiguro H, Sutoh S, Aizawa Y. Serum Immunoreactive Collagen IV detected by Monoclonal Antibodies as a Marker of Severe Fibrosis in Patients with Non- Alcoholic Fatty Liver Disease. JGLD 2015; 24:61-8. [DOI: 10.15403/jgld.2014.1121.yad] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
Abstract
Background & Aims: The incidence of non-alcoholic fatty liver disease (NAFLD) is increasing worldwide. We evaluated serum collagen IV as a direct non-invasive marker of severe liver fibrosis in NAFLD.Methods: The study included 148 NAFLD and 187 chronic hepatitis C patients in whom histological severity of liver fibrosis was evaluated. The utility of serum collagen IV measured by immune-mediated agglutination using two types of monoclonal antibodies for distinguishing severe fibrosis (≥ stage 3 and ≥ F3) from non-to-moderate fibrosis in NAFLD or chronic hepatitis C was assessed in comparison to serum hyaluronic acid or other indirect fibrosis markers.Results: Multiple logistic regression analysis showed that serum collagen IV was significantly associated with severe fibrosis in NAFLD (odds ratio: 1.21, p<0.001) but not in chronic hepatitis C. For distinguishing severe fibrosis in NAFLD, collagen IV showed the largest area under the receiver-operating characteristic curve (0.827, 95%CI: 0.746-0.908) followed by FIB-4 (0.805, 95%CI: 0.728-0.890); in chronic hepatitis C, those for FIB-4 (0.813, 95%CI: 0.748-0.878) and collagen IV (0.770, 95%CI: 0.683-0.857) were the largest and smallest, respectively. To detect severe fibrosis in NAFLD, a cutoff of collagen IV > 177 exhibited 77.1% sensitivity, 84.0% specificity, 76.5% positive predictive value, and 84.0% negative predictive value. Combined with a cutoff of FIB-4 > 2.09, the negative and positive predictive values, and specificity for detecting severe fibrosis in NAFLD increased further.Conclusion: Collagen IV is a reliable marker for distinguishing severe liver fibrosis from non-to-moderate fibrosis in NAFLD but not chronic hepatitis C.
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Aida Y, Abe H, Tomita Y, Nagano T, Seki N, Sugita T, Itagaki M, Ishiguro H, Sutoh S, Aizawa Y. Serum cytokeratin 18 fragment level as a noninvasive biomarker for non-alcoholic fatty liver disease. Int J Clin Exp Med 2014; 7:4191-4198. [PMID: 25550930 PMCID: PMC4276188] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2014] [Accepted: 10/23/2014] [Indexed: 06/04/2023]
Abstract
BACKGROUND AND AIM We evaluated the usefulness of serum cytokeratin 18 fragment (CK18-F) as a noninvasive biomarker in differentiating nonalcoholic steatohepatitis (NASH) from nonalcoholic fatty liver (NAFL) since the prognosis of the 2 diseases differ. METHODS 116 Japanese patients with nonalcoholic fatty liver disease (NAFLD) proven by liver biopsy were studied. Histological findings were classified according to the NAFLD activity score (NAS) proposed by the Nonalcoholic Steatohepatitis Clinical Research Network. The correlation between histological findings and serum CK18-F levels was investigated. RESULTS Serum CK18-F levels showed a positive correlation with histologic steatosis (ρ = 0.271, P = 0.0033), inflammation (ρ = 0.353, P = 0.0005), ballooning (ρ = 0.372, P = 0.0001), and the total NAS (ρ = 0.474, P = 2.68 × 10-7). The serum CK18-F level was significantly lower for NAFL (NAS ≤ 2) than for borderline NASH (NAS of 3-4) or definite NASH (NAS ≥ 5) (P = 0.0294, P = 1.163 × 10-5, respectively). The serum CK18-F level was significantly higher for definite NASH than for borderline NASH (P = 0.0002). The area under the receiver operating characteristic curve of serum CK18-F to predict the presence of NAFL and definite NASH was 0.762 and 0.757, respectively. The optimal cut-off point of serum CK18-F for NAFL and definite NASH was 230 and 270 U/L, respectively. The sensitivity, specificity, positive predict value, and negative predict value of serum CK18-F for NAFL were 0.89, 0.65, 0.34, and 0.97, and those for definite NASH were 0.64, 0.76, 0.72, and 0.67, respectively. Accuracies of diagnosis for both NAFL and definite NASH were 0.70. CONCLUSIONS Serum CK18-F could be a clinically useful biomarker to discriminate between NAFL and NASH.
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Affiliation(s)
- Yuta Aida
- Department of Internal Medicine, Division of Gastroenterology and Hepatology, Jikei University School of Medicine, Katsushika Medical Center 6-41-2 Aoto, Katsushika-ku, Tokyo 125-8506, Japan
| | - Hiroshi Abe
- Department of Internal Medicine, Division of Gastroenterology and Hepatology, Jikei University School of Medicine, Katsushika Medical Center 6-41-2 Aoto, Katsushika-ku, Tokyo 125-8506, Japan
| | - Yoichi Tomita
- Department of Internal Medicine, Division of Gastroenterology and Hepatology, Jikei University School of Medicine, Katsushika Medical Center 6-41-2 Aoto, Katsushika-ku, Tokyo 125-8506, Japan
| | - Tomohisa Nagano
- Department of Internal Medicine, Division of Gastroenterology and Hepatology, Jikei University School of Medicine, Katsushika Medical Center 6-41-2 Aoto, Katsushika-ku, Tokyo 125-8506, Japan
| | - Nobuyoshi Seki
- Department of Internal Medicine, Division of Gastroenterology and Hepatology, Jikei University School of Medicine, Katsushika Medical Center 6-41-2 Aoto, Katsushika-ku, Tokyo 125-8506, Japan
| | - Tomonori Sugita
- Department of Internal Medicine, Division of Gastroenterology and Hepatology, Jikei University School of Medicine, Katsushika Medical Center 6-41-2 Aoto, Katsushika-ku, Tokyo 125-8506, Japan
| | - Munenori Itagaki
- Department of Internal Medicine, Division of Gastroenterology and Hepatology, Jikei University School of Medicine, Katsushika Medical Center 6-41-2 Aoto, Katsushika-ku, Tokyo 125-8506, Japan
| | - Haruya Ishiguro
- Department of Internal Medicine, Division of Gastroenterology and Hepatology, Jikei University School of Medicine, Katsushika Medical Center 6-41-2 Aoto, Katsushika-ku, Tokyo 125-8506, Japan
| | - Satoshi Sutoh
- Department of Internal Medicine, Division of Gastroenterology and Hepatology, Jikei University School of Medicine, Katsushika Medical Center 6-41-2 Aoto, Katsushika-ku, Tokyo 125-8506, Japan
| | - Yoshio Aizawa
- Department of Internal Medicine, Division of Gastroenterology and Hepatology, Jikei University School of Medicine, Katsushika Medical Center 6-41-2 Aoto, Katsushika-ku, Tokyo 125-8506, Japan
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Itagaki M, Saruta M, Saijo H, Mitobe J, Arihiro S, Matsuoka M, Kato T, Ikegami M, Tajiri H. Efficacy of zinc-carnosine chelate compound, Polaprezinc, enemas in patients with ulcerative colitis. Scand J Gastroenterol 2014; 49:164-72. [PMID: 24286534 DOI: 10.3109/00365521.2013.863963] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
OBJECTIVES Ulcerative colitis (UC) is a chronic, relapsing and remitting intestinal inflammatory disorder. Zinc is known to be efficacious for the repair of damaged tissue and has been shown to protect against gastric ulceration. This study focused on Polaprezinc (PZ), N-(3-aminopropionyl)-L-histidinato zinc, which accelerates ulcer healing through actions such as prostaglandin-independent cytoprotection and antioxidative activity. METHODS In this randomized, placebo-controlled, investigator-blinded trial, 28 patients with active UC at The Jikei University Hospital were randomly divided into two groups: one treated with a 150 mg PZ enema (n = 18) and the other not treated with a PZ enema (n = 10). All patients received usual induction therapy. Clinical symptoms, endoscopic findings and histological findings were evaluated at entry and one week later. RESULTS In the PZ group, modified Matts' endoscopic scores were significantly improved after treatment compared to baseline in the rectum (p = 0.004), sigmoid colon (p = 0.03) and descending colon (p = 0.04). In the non-PZ group, scores were not significantly improved in the rectum (p = 0.14) and descending colon (p = 0.34), but were improved in the sigmoid colon (p = 0.04). In the PZ group, the Mayo scores at baseline and at Day 8 were 9.1 ± 1.6 and 5.8 ± 2.7 (p = 0.00004), respectively, and in the placebo group, the scores were 8.9 ± 1.7 and 7.4 ± 2.1 (p = 0.009), respectively. Clinical response or remission was significantly better in the PZ group (71%) than in the placebo group (10%). CONCLUSIONS A zinc-carnosine chelate compound, PZ, enema may become a useful new add-on treatment to accelerate mucosal healing in UC.
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Affiliation(s)
- Munenori Itagaki
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, The Jikei University School of Medicine , Tokyo , Japan
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Abe H, Aida Y, Ishiguro H, Yoshizawa K, Seki N, Miyazaki T, Itagaki M, Sutoh S, Ika M, Kato K, Shimada N, Tsubota A, Aizawa Y. New proposal for response-guided peg-interferon-plus-ribavirin combination therapy for chronic hepatitis C virus genotype 2 infection. J Med Virol 2013; 85:1523-33. [PMID: 23775277 DOI: 10.1002/jmv.23626] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/20/2013] [Indexed: 11/06/2022]
Abstract
This study aimed to determine the most suitable duration of pegylated-interferon (Peg-IFN)-plus-ribavirin combination therapy in patients infected with hepatitis C virus (HCV) genotype 2 who had not achieved rapid virological response (serum HCV RNA disappearance after 4 weeks of therapy). HCV genotype 2 patients (n = 182) with a high viral load received >80% of the standard Peg-IFN-plus-ribavirin dose for at least 24 weeks, and their final virological responses were studied. Patients were classified into "rapid virological response" and "non-rapid virological response" groups. The non-rapid virological response group was further divided into a "virological response at 8 weeks" (serum HCV RNA disappearance after 8 weeks of therapy) and a "non-virological response at 8 weeks" group. Factors related to rapid virological response and optimal therapy duration in the non-rapid virological response group were evaluated. Multivariate logistic regression analysis showed that subtype HCV genotype 2a (P = 0.0015) and low concentration of pretreatment serum HCV RNA (P = 0.0058) were independent factors in a rapid virological response. In the virological response at 8 weeks group, the sustained virological response rate after 24 weeks of therapy was significantly lower than after 36 weeks (P = 0.044) or after 48 weeks (P = 0.006), and was similar for 36- and 48-weeks. The cost for achieving (CAS) one sustained virological response was lowest with 36-week therapy. Prolongation of Peg-IFN-plus-ribavirin combination therapy to 36 weeks is suitable for achieving virological response at 8 weeks, given the high, sustained virological response rate and cost benefit.
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Affiliation(s)
- Hiroshi Abe
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Jikei University School of Medicine Katsushika Medical Center, Katsushika-Ku, Tokyo, Japan.
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Abe H, Aida Y, Ishiguro H, Yoshizawa K, Miyazaki T, Itagaki M, Sutoh S, Aizawa Y. Alcohol, postprandial plasma glucose, and prognosis of hepatocellular carcinoma. World J Gastroenterol 2013; 19:78-85. [PMID: 23326166 PMCID: PMC3542757 DOI: 10.3748/wjg.v19.i1.78] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/08/2012] [Revised: 09/17/2012] [Accepted: 09/29/2012] [Indexed: 02/06/2023] Open
Abstract
AIM: To identify factors associated with prognosis of hepatocellular carcinoma (HCC) after initial therapy.
METHODS: A total of 377 HCC patients who were newly treated at Katsushika Medical Center, Japan from January 2000 to December 2009 and followed up for > 2 years, or died during follow-up, were enrolled. The factors related to survival were first analyzed in 377 patients with HCC tumor stage T1-T4 using multivariate Cox proportional hazards regression analysis. A similar analysis was performed in 282 patients with tumor stage T1-T3. Additionally, factors associated with the period between initial and subsequent therapy were examined in 144 patients who did not show local recurrence. Finally, 214 HCC stage T1-T3 patients who died during the observation period were classified into four groups according to their alcohol consumption and postprandial glucose levels, and differences in their causes of death were examined.
RESULTS: On multivariate Cox proportional hazards regression analysis, the following were significantly associated with survival: underlying liver disease stage [non-cirrhosis/Child-Pugh A vs B/C, hazard ratio (HR): 0.603, 95% CI: 0.417-0.874, P = 0.0079], HCC stage (T1/T2 vs T3/T4, HR: 0.447, 95% CI: 0.347-0.576, P < 0.0001), and mean postprandial plasma glucose after initial therapy (< 200 vs≥ 200 mg/dL, HR: 0.181, 95% CI: 0.067-0.488, P = 0.0008). In T1-T3 patients, uninterrupted alcohol consumption after initial therapy (no vs yes, HR: 0.641, 95% CI: 0.469-0.877, P = 0.0055) was significant in addition to underlying liver disease stage (non-cirrhosis/Child-Pugh A vs B/C, HR: 0649, 95% CI: 0.476-0.885, P = 0.0068), HCC stage (T1 vs T2/T3, HR: 0.788, 95% CI: 0.653-0.945, P = 0.0108), and mean postprandial plasma glucose after initial therapy (< 200 mg/dL vs≥ 200 mg/dL, HR: 0.502, 95% CI: 0.337-0.747, P = 0.0005). In patients without local recurrence, time from initial to subsequent therapy for newly emerging HCC was significantly longer in the “postprandial glucose within 200 mg/dL group” than the “postprandial glucose > 200 mg/dL group” (log-rank test, P < 0.05), whereas there was no difference in the period between the “non-alcohol group” (patients who did not drink regularly or those who could reduce their daily consumption to < 20 g) and the “continuation group” (drinkers who continued to drink > 20 g daily). Of 214 T1-T3 patients who died during the observation period, death caused by other than HCC progression was significantly more frequent in “group AL” (patients in the continuation and postprandial glucose within 200 mg/dL groups) than “group N” (patients in the non-alcohol and postprandial glucose within 200 mg/dL groups) (P = 0.0016).
CONCLUSION: This study found that abstinence from habitual alcohol consumption and intensive care for diabetes mellitus were related to improved prognosis in HCC patients.
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Itagaki M, Saruta M, Iinuma T, Arihiro S, Kato T, Tajiri H. Infliximab- and immunosuppressant-resistant Crohn's disease successfully treated with adsorptive granulocyte apheresis combined with prednisolone. Case Rep Gastroenterol 2012; 6:118-23. [PMID: 22761605 PMCID: PMC3388273 DOI: 10.1159/000334428] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Activated granulocytes, monocytes, and platelets appear to be closely involved in active Crohn's disease (CD). Adsorptive granulocyte apheresis (GCAP) is a new treatment for inflammatory bowel disease. GCAP was used to treat a 23-year-old female patient with CD resistant to both infliximab (IFX) and azathioprine (AZA). At 16 years of age, the patient underwent a partial ileal resection for peritonitis caused by perforative ileitis. On pathological examination of the resected specimen, the diagnosis was CD. Mesalazine was started, but the patient did not comply with therapy. She was admitted to our hospital again in 2007 due to an acute exacerbation. IFX induction therapy was started. The combination of both AZA daily and IFX every 8 weeks was continued as maintenance therapy. However, she developed severe abdominal pain in September 2009. Computed tomography revealed ileitis and ascending colitis, and blood tests showed high inflammatory response marker levels. She was considered to have IFX- and AZA-resistant CD. Initial intravenous steroid therapy did not result in any improvement. Therefore, weekly GCAP therapy was given for 5 weeks, which immediately improved the inflammatory response markers. GCAP combined with prednisolone could be effective for IFX- and AZA-refractory CD.
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Affiliation(s)
- Munenori Itagaki
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Jikei University School of Medicine, Tokyo, Japan
| | - Masayuki Saruta
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Jikei University School of Medicine, Tokyo, Japan
| | - Toshio Iinuma
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Jikei University School of Medicine, Tokyo, Japan
| | - Seiji Arihiro
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Jikei University School of Medicine, Tokyo, Japan
| | - Tomohiro Kato
- Department of Endoscopy, Jikei University School of Medicine, Tokyo, Japan
| | - Hisao Tajiri
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Jikei University School of Medicine, Tokyo, Japan
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Arai Y, Kato T, Arihiro S, Itagaki M, Komoike N, Odagi I, Saruta M, Matsuoka M, Suzuki T, Tajiri H. Utility of single balloon enteroscopy (SBE) for difficult cases of total colonoscopy. J Interv Gastroenterol 2012; 2:12-14. [PMID: 22586543 DOI: 10.4161/jig.20127] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2011] [Revised: 08/07/2011] [Accepted: 12/20/2011] [Indexed: 12/22/2022]
Abstract
Balloon enteroscopy (BE) was originally developed for observation of the deep small intestine, and has recently been utilized for difficult cases of total colonoscopy due to reasons such as adhesions and elongation. In this report, we present our experience with single balloon enteroscopy (SBE) to facilitate successful colonoscopy when standard techniques failed. In two cases, early colon cancers were detected in the cecum by SBE and were removed endoscopically or surgically. A third case is discussed in which SBE was attempted but was ultimately not successful. In that case, total colonoscopy was not performed because of looping in the sigmoid and transverse colon. A fourth case in which SBE was performed in order to remove colonic gas in a patient with megacolon. In that case, total colonoscopy could not be completed because the SBE balloon could not "grab" the dilated colon and therefore could not advance. SBE is a useful adjunct to standard colonoscopy in challenging cases, but has limitations and does not always ensure success.
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Affiliation(s)
- Yoshinori Arai
- Division of Gastroenterology and Hepatology, Department of Internal Medicine; The Jikei University School of Medicine, Tokyo, Japan
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Takakura K, Kato T, Arihiro S, Miyazaki T, Arai Y, Nakao Y, Komoike N, Itagaki M, Odagi I, Hirohama K, Saruta M, Matsuoka M, Tajiri H. Selective ligation using a detachable snare for small-intestinal polyps in patients with Peutz-Jeghers syndrome. Endoscopy 2011; 43 Suppl 2 UCTN:E264-5. [PMID: 21837607 DOI: 10.1055/s-0030-1256528] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- K Takakura
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
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Arai Y, Arihiro S, Ide D, Odagi I, Itagaki M, Komoike N, Nakao Y, Takakura K, Saruta M, Matsuoka M, Kato T, Tajiri H. Acute Pancreatitis due to pH-Dependent Mesalazine That Occurred in the Course of Ulcerative Colitis. Case Rep Gastroenterol 2011; 5:610-6. [PMID: 22110423 PMCID: PMC3219486 DOI: 10.1159/000333605] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Abstract
We report the case of a 26-year-old male who presented with acute pancreatitis during the course of treatment for pancolitic ulcerative colitis (UC) with a time-dependent mesalazine formulation, prednisolone and azathioprine (AZA). Despite a review of his clinical history and various tests, the cause of pancreatitis could not be determined. Since drug-induced pancreatitis was considered possible, administration of the time-dependent mesalazine preparation and AZA was discontinued, and conservative treatment for acute pancreatitis was performed. The pancreatitis promptly improved with these treatments, but drug lymphocyte stimulation test (DLST) for both the time-dependent mesalazine formulation and AZA was negative. A pH-dependent mesalazine formulation was given for maintenance therapy of UC. Subsequently, as the pancreatitis relapsed, drug-induced pancreatitis was strongly suspected. Administration of mesalazine was discontinued, and pancreatitis was smoothly in remission by conservative treatment. According to the positive DLST result for the pH-dependent mesalazine formulation and the clinical course, a diagnosis of pH-dependent mesalazine-induced pancreatitis due to this formulation was made. During the clinical course of UC, occurrence of drug-induced pancreatitis must always be considered.
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Affiliation(s)
- Yoshinori Arai
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Jikei University School of Medicine, Tokyo, Japan
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Abe D, Kubota T, Morozumi T, Shimizu T, Nakasone N, Itagaki M, Yoshie H. Altered gene expression in leukocyte transendothelial migration and cell communication pathways in periodontitis-affected gingival tissues. J Periodontal Res 2011; 46:345-53. [PMID: 21382035 DOI: 10.1111/j.1600-0765.2011.01349.x] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.5] [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: 01/02/2023]
Abstract
BACKGROUND AND OBJECTIVE Gene expression is related to the pathogenesis of periodontitis and plays a crucial role in local tissue destruction and disease susceptibility. The aims of the present study were to identify the expression of specific genes and biological pathways in periodontitis-affected gingival tissue using microarray and quantitative real-time RT-PCR analyses. MATERIAL AND METHODS Healthy and periodontitis-affected gingival tissues were taken from three patients with severe chronic periodontitis. Total RNAs from six gingival tissue samples were used for microarray analyses. Data-mining analyses, such as comparisons, gene ontology and pathway analyses, were performed and biological pathways with a significant role in periodontitis were identified. In addition, quantitative real-time RT-PCR analysis was performed on samples obtained from 14 patients with chronic periodontitis and from 14 healthy individuals in order to confirm the results of the pathway analysis. RESULTS Comparison analyses found 15 up-regulated and 13 down-regulated genes (all of which showed a change of more than twofold in expression levels) in periodontitis-affected gingival tissues. Pathway analysis identified 15 up-regulated biological pathways, including leukocyte transendothelial migration, and five down-regulated pathways, including cell communication. Quantitative real-time RT-PCR verified that five genes in the leukocyte transendothelial migration pathway were significantly up-regulated, and four genes in the cell communication pathway were significantly down-regulated, which was consistent with pathway analysis. CONCLUSION We identified up-regulated genes (ITGB-2, MMP-2, CXCL-12, CXCR-4 and Rac-2) and down-regulated genes (connexin, DSG-1, DSC-1 and nestin) in periodontitis-affected gingival tissues; these genes may be related to the stimulation of leukocyte transendothelial migration and to the the impairment of cell-to-cell communication in periodontitis.
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Affiliation(s)
- D Abe
- Division of Periodontology, Department of Oral Biological Science, Niigata University Graduate School of Medical and Dental Sciences, Japan
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Ogino M, Kido J, Bando M, Hayashi N, Wada C, Nagata T, Nishimura F, Soga Y, Takashiba S, Kubota T, Itagaki M, Shimada Y, Tai H, Yoshie H, Yamazaki N, Shinohara Y, Kataoka M. Alpha 2 integrin +807 polymorphism in drug-induced gingival overgrowth. J Dent Res 2006; 84:1183-6. [PMID: 16304451 DOI: 10.1177/154405910508401217] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.0] [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: 11/15/2022] Open
Abstract
Alpha2 integrin on fibroblasts is reported to play an important role in the induction of drug-induced gingival overgrowth, which is characterized by excessive accumulation of type I collagen in gingival connective tissue. Silent polymorphism 807 T/C within the alpha2 integrin gene is associated with high/low alpha2 integrin expression. The aim of this study was to test the hypothesis that expression of alpha2 integrin 807 T/C polymorphism correlates with drug-induced gingival overgrowth. A case-control study comparing 136 subjects taking calcium channel blockers (72 with vs. 64 without drug-induced gingival overgrowth) demonstrated that the frequency of the +807 C allele was significantly higher in the case group than in the controls (odds ratio, 3.61; 95% confidence interval, 2.14 - 6.10; P < 0.05). The present findings suggest that the alpha2 +807 C allele is one of the genetic risk factors for drug-induced gingival overgrowth.
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Affiliation(s)
- M Ogino
- Divison of Gene Expression, Institute for Genome Research, The University of Tokushima, Kuramoto 3-18-15, Tokushima 770-8503, Japan
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Tang WR, Shioya N, Eguchi T, Ebata T, Matsui J, Takenouchi H, Honma D, Yasue H, Takagaki Y, Enosawa S, Itagaki M, Taguchi T, Kiyokawa N, Amemiya H, Fujimoto J. Characterization of new monoclonal antibodies against porcine lymphocytes: molecular characterization of clone 7G3, an antibody reactive with the constant region of the T-cell receptor δ-chains. Vet Immunol Immunopathol 2005; 103:113-27. [PMID: 15626467 DOI: 10.1016/j.vetimm.2004.08.018] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2003] [Revised: 07/09/2004] [Accepted: 08/26/2004] [Indexed: 11/25/2022]
Abstract
A battery of mouse monoclonal antibodies (mAbs) reactive with porcine peripheral blood (PB) leukocytes was generated. Among the mAbs, 6F10 was found to react probably with cluster of differentiation (CD)8 alpha-chain, while 7G3 and 3E12 were found to recognize gammadelta T-cells, as revealed by two-color flow cytometric and immunoprecipitation studies. 7G3 was shown to react with the constant (C) region of the T-cell receptor (TCR) delta-chain by the following facts: (1) 7G3 immunoprecipitated full-length TCR delta-chain protein fused with glutathione S-transferase (GST) produced by Esherichia coli and (2) 7G3 reacted with TCR delta-chain expressing Cos-7 cells transfected with either full-length or N-terminal deleted mutant cDNA, but did not react with Cos-7 cells transfected with C-terminal deleted mutant TCR delta-chain cDNA. All three mAbs produced high-quality immunostaining results on frozen sections, revealing a distinct distribution of gammadelta T-cells and CD8(+) cells. This report precisely characterizes mAbs against porcine TCR for the first time, facilitating molecular biological investigations of the porcine immune system.
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MESH Headings
- Amino Acid Sequence
- Animals
- Antibodies, Monoclonal/immunology
- Flow Cytometry
- Immunohistochemistry
- Immunoprecipitation
- Lymphocytes/immunology
- Molecular Sequence Data
- Receptors, Antigen, T-Cell, gamma-delta/analysis
- Receptors, Antigen, T-Cell, gamma-delta/genetics
- Receptors, Antigen, T-Cell, gamma-delta/immunology
- Swine/immunology
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Affiliation(s)
- W-R Tang
- Department of Developmental Biology, National Research Institute for Child Health and Development, 3-35-31 Taishido, Setagaya-ku, Tokyo 154-8567, Japan
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Watanabe K, Tanaka T, Iburaim A, Itagaki M. Effects of masking agents on the separation of copper(II) from iron(III) by continuous solvent extraction with 8-hydroxyquinoline. ANAL SCI 2001; 17:671-4. [PMID: 11708153 DOI: 10.2116/analsci.17.671] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Affiliation(s)
- K Watanabe
- Department of Industrial Chemistry, Faculty of Science and Technology, Science University of Tokyo, 2641 Yamazaki, Noda, Chiba 278-8510, Japan
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Sato N, Kiyokawa N, Takada K, Itagaki M, Saito M, Sekino T, Suzuki T, Taguchi T, Mimori K, Lanza F, Fujimoto J. Characterization of monoclonal antibodies against mouse and rat platelet glycoprotein V (CD42d). Hybridoma (Larchmt) 2000; 19:455-61. [PMID: 11152397 DOI: 10.1089/027245700750053940] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.5] [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: 01/08/2023]
Abstract
The mouse- and rat-platelet-specific hamster monoclonal antibody (MAb) 1C2, previously found to react with a thrombin-sensitive 74-kD glycoprotein, was now shown to recognize platelet glycoprotein V (GPV, CD42d). 1C2 reacted with NIH-3T3 cells in which recombinant mouse or rat GPV was expressed. Both 1C2 and 4A5, another mouse-platelet-specific rat MAb, immunoprecipitated GVP, although they recognized different epitopes. Side-by-side comparison confirmed that 1C2 as well as RPM.9, a MAb against rat GPV, recognized the same rat platelet molecule. In a mouse bone marrow culture, 1C2+ megakaryocytes emerged from CD41 (GPIIb)+1C2- megakaryocytes. Because 1C2+ megakaryocytes exhibited higher DNA ploidy distribution than CD41+ cells, GPV likely appears in the late stage of megakaryocyte maturation. This study established 1C2 as a MAb against mouse and rat GPV, namely CD42d, and as useful tool to study rodent megakaryopoiesis.
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Affiliation(s)
- N Sato
- Department of Pathology, National Children's Medical Research Center, Tokyo, Japan
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Sato N, Kiyokawa N, Taguchi T, Suzuki T, Sekino T, Ohmi K, Itagaki M, Sato T, Lepage A, Lanza F, Fujimoto J. Functional conservation of platelet glycoprotein V promoter between mouse and human megakaryocytes. Exp Hematol 2000; 28:802-14. [PMID: 10907642 DOI: 10.1016/s0301-472x(00)00176-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [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: 10/18/2022]
Abstract
OBJECTIVE In an attempt to clarify the megakaryo-specific regulatory mechanism of GPV gene transcription, we characterized the 5'-flanking region of the mouse GPV gene. MATERIALS AND METHODS The promotor activity of a -481/+22 5'-fragment of the mouse GPV gene was examined in normal mouse bone marrow cells (BMC) and various human cell lines using two distinct reporter gene assay systems, luciferase and green fluorescence protein (GFP). RESULTS When a DNA construct consisting of this fragment and a GFP reporter gene were transiently expressed in thrombopoietin-supported mouse BMC culture, GFP was identified only in megakaryocytes. The same construct expressed high levels of GFP in the human megakaryocytic Dami line. When assessed by dual luciferase assay, the full -481/+22 fragment could drive variable promoter activity in human as well as mouse megakaryocytic lines but did not work in non-megakaryocytic cells. Sufficient transcriptional activation of this fragment was restricted to the cells expressing apparent GPV mRNA. A deletion and point mutation study indicated that GATA and Ets motifs, typical cis-acting elements for platelet-specific genes, located of -75 and -46, respectively, were essential for promoter function. CONCLUSION The GPV promoter has the general characteristics found in platelet-specific genes, and the mechanism for megakaryocyte-specific, maturation-dependent regulation of GPV gene transcription is highly conserved between mouse and human. Analysis of GPV transcription mechanism utilizing human lines as well as BMC should provide new information on the final maturational process of megakaryocytes.
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Affiliation(s)
- N Sato
- Department of Pathology, National Children's Medical Research Center, Tokyo, Japan
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Itagaki M, Amami K, Tomura Y, Yuhaku S, Ishimaru Y, Bessho Y, Eda K, Ishida T. Packaging properties of ALIVH-CSP using SBB flip-chip bonding technology. ACTA ACUST UNITED AC 1999. [DOI: 10.1109/6040.784487] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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28
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Itagaki M. Application of a wall jet disk electrode combined with an electrochemical quartz crystal microbalance to the study of the dissolution of copper in acidic chloride media. J Electroanal Chem (Lausanne) 1997. [DOI: 10.1016/s0022-0728(97)00057-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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29
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Itagaki M, Tagaki M, Watanabe K. Application of a wall jet disk electrode combined with an electrochemical quartz crystal microbalance to the study of the dissolution of copper in acidic chloride media. J Electroanal Chem (Lausanne) 1997. [DOI: 10.1016/s0022-0728(97)80049-6] [Citation(s) in RCA: 3] [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: 10/22/2022]
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Katoh T, Sakai J, Itagaki M, Watanabe E, Watanabe D, Ogata Y. The fractional inhibitory concentration index of antimicrobial agents for bacteria and Mycoplasma isolated from the nasal swabs of cattle with respiratory diseases. J Vet Med Sci 1996; 58:781-2. [PMID: 8877979 DOI: 10.1292/jvms.58.781] [Citation(s) in RCA: 2] [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: 02/02/2023] Open
Abstract
We investigated the effect of thiamphenicol plus lincomycin (TP + LCM) and thiamphenicol plus tylosin (TP + TS) combinations using checker board method on the growth of Pasteurella (P.) multocida, P. haemolytica and Mycoplasma (M.) bovis by calculating the fractional inhibitory concentration index (FIC index). The results showed that the FIC indexes of the TP + LCM combination for P. multocida, P. haemolytica and M. bovis were 0.36 +/- 0.10, 0.72 +/- 0.09 and 0.81 +/- 0.18, respectively. The FIC indexes of the TP + TS combination for P. multocida, P. haemolytica, and M. bovis were 0.79 +/- 0.20, 0.66 +/- 0.11 and 0.32 +/- 0.14, respectively. Thus, these combinations are assumed to have a more synergistic or additive effect on bacteria growth than a single antimicrobial agent.
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Affiliation(s)
- T Katoh
- Veterinary Clinical Training Center, Yamagata Prefectural Federation of Agricultural Mutual Aid Associations, Japan
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Abstract
To characterize intracellular Ca2+ stores, the Ca(2+)-releasing effects of caffeine, carbachol and inositol 1,4,5-trisphosphate (IP3) were compared by measuring the drug-induced tension development in beta-escin-skinned longitudinal smooth muscle of guinea-pig ileum. Caffeine (20 mM), carbachol (10 or 100 microM) or IP3 (40 microM), applied after loading Ca2+ within intracellular stores, produced a transient rise in tension in a Ca(2+)-free solution. This change in tension occurred in response to release of Ca2+ from the stores. The effect of either caffeine or carbachol was markedly reduced or abolished after preceding application of the other drug. IP3 was without effect when applied subsequently to caffeine. The effects of carbachol and IP3 were abolished after combined treatment with ryanodine (30 microM) and caffeine (20 mM) which causes functional removal of caffeine-releasable Ca2+ stores, but not after combined treatment with ryanodine (30 microM) and carbachol (10 microM). The results suggest that caffeine, carbachol and IP3 all act on common Ca2+ stores to release Ca2+.
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Affiliation(s)
- S Komori
- Department of Veterinary Science, Faculty of Agriculture, Gifu University, Japan
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Itagaki M, Komori S, Unno T, Syuto B, Ohashi H. Possible involvement of a small G-protein sensitive to exoenzyme C3 of Clostridium botulinum in the regulation of myofilament Ca2+ sensitivity in beta-escin skinned smooth muscle of guinea pig ileum. Jpn J Pharmacol 1995; 67:1-7. [PMID: 7745839 DOI: 10.1254/jjp.67.1] [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] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
The effects of exoenzyme C3 of Clostridium botulinum on Ca(2+)- and drug-induced tension developments were investigated in beta-escin skinned smooth muscle of guinea pig ileum to test the involvement of a small G-protein in the regulation of myofilament Ca2+ sensitivity. C3 is known to ADP-ribosylate the rho p21 family of small G-proteins. Treatment with C3 (0.35 microgram/ml, for 30 min) shifted the pCa-tension curve rightward along the Ca2+ concentration axis, indicating a decrease in Ca2+ sensitivity of the contractile elements. The inhibitory effect of C3 was not preserved after treatment with GDP beta S (1 mM), an antagonist of GTP for the binding to G-proteins. Stimulation of muscarinic receptors with carbachol (CCh, 100 microM) shifted the pCa-tension curve leftward, indicating Ca2+ sensitization of tension development. The Ca(2+)-sensitizing effect of CCh was not observed after C3 treatment. When GTP gamma S (10 microM), an activator of G-proteins, was applied at a plateau of tension development produced by a moderate concentration of Ca2+, further increase in tension was elicited and the effect of GTP gamma S was inhibited by C3 treatment. The results suggest the possible involvement of a rho p21-like small G-protein in the regulation of Ca2+ sensitivity of smooth muscle myofilaments.
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Affiliation(s)
- M Itagaki
- Department of Veterinary Science, Faculty of Agriculture, Gifu University, Japan
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Nagasaki M, Itagaki M, Komori S, Ohashi H. Effect of trimebutine on contractile responses in skinned ileal smooth muscle. Jpn J Pharmacol 1994; 65:249-55. [PMID: 7799525 DOI: 10.1254/jjp.65.249] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
The effects of trimebutine on Ca2+ release and modulation of Ca2+ sensitivity of contractile elements induced by carbachol (CCh) were investigated using a tension measuring method in beta-escin-treated skinned smooth muscle of the longitudinal muscle layer of guinea pig ileum. Trimebutine (10-100 microM) concentration-dependently inhibited tension development brought about by Ca2+ release from intracellular stores induced by CCh (10 microM), but did not affect those induced by inositol 1,4,5-trisphosphate (IP3, 25 microM) or caffeine (5 mM). The inhibitory effect was reversible. Trimebutine (100 microM) neither altered the Ca2+ sensitivity of the contractile elements nor affected the effects of GTP gamma S (50 microM) and CCh (100 microM) in potentiating Ca2+ sensitivity of the contractile elements after the Ca2+ storage function had been eliminated by A23187. These results suggest that trimebutine inhibits CCh-induced Ca2+ release by acting at some point during the coupling of muscarinic receptors through a G-protein to phospholipase C and thus reducing the accumulation of IP3.
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Affiliation(s)
- M Nagasaki
- Pharmacological Research Laboratory, Tanabe Seiyaku Co., Ltd., Saitama, Japan
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Fukami K, Itagaki M, Komori S, Ohashi H. Contractile responses to histamine and GTP gamma S in beta-escin-treated skinned smooth muscle of guinea pig ileum. Jpn J Pharmacol 1993; 63:171-9. [PMID: 8283827 DOI: 10.1254/jjp.63.171] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
To characterize the calcium (Ca2+)-releasing effects of histamine and GTP gamma S, the drug-induced tension developments were measured in beta-escin-treated skinned longitudinal smooth muscle of guinea pig ileum. Intracellular Ca2+ stores were loaded with Ca2+ by incubating the muscle for 10 min in a Ca(2+)-containing solution. Histamine (10-100 microM), applied after Ca(2+)-loading, produced a transient rise in tension. The effect of histamine was not preserved after treatment with 20 mM caffeine, a Ca(2+)-store releaser. The effect of histamine was potentiated by GTP; inhibited by GDP beta S, an antagonist of GTP for binding to G-proteins; or heparin, an antagonist of inositol 1,4,5-trisphosphate (IP3) for binding to its receptor; and mimicked by IP3. When GTP gamma S (20 microM) was applied and continued to be present for 15 min, a transient rise in tension followed by a small, sustained rise in tension was elicited. The effect of GTP gamma S was completely inhibited by GDP beta S. The initial, transient component of the biphasic GTP gamma S response was abolished or markedly inhibited after treatment with caffeine, heparin or the calcium ionophore A23187. The present results suggest that histamine and GTP gamma S cause a release of Ca2+ from caffeine-sensitive stores which is mediated by IP3 formed through a G-protein-coupled mechanism. The GTP gamma S-induced Ca2+ release is not considered to involve such an IP3-independent process as described in chemically-skinned arterial muscle.
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Affiliation(s)
- K Fukami
- Department of Veterinary Science, Faculty of Agriculture, Gifu University, Japan
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Watanabe M, Imamura M, Abe I, Itagaki M, Takahashi H. [A case of multiple peripheral pulmonary carcinoids showing a diffuse lung disease synchronously associated with sigmoid colon cancer]. Gan No Rinsho 1990; 36:2580-6. [PMID: 2266591] [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] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Reported is a rare case of a multiple peripheral pulmonary carcinoids showing a diffuse lung disease synchronously associated with a sigmoid colon cancer. An abnormal chest shadow was detected in a 75-year-old male by X ray during a periodic health examination. After admission to hospital for a more thorough examination he was found to have a sigmoid colon cancer. A CT scan of his chest suggested sarcoidosis, but the results of a bronchofiberscopic examination appeared normal. Subsequently, a TBLB specimen revealed typical carcinoid tumors. Thus, the diagnosis of diffuse multiple peripheral carcinoids was made. A surgical resection of the sigmoid colon cancer was performed successfully, but five months later, the patient died of acute pneumonia. An autopsy was not permitted. Also discussed are multiple pulmonary carcinoids and a double cancer.
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Affiliation(s)
- M Watanabe
- Dept. of Int. Med., Kuriyama Red Cross Hospital
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Takeda Y, Itagaki M, Ishibashi K. Hypoplastic-hypocalcified enamel of teeth and dysplastic nails: an undescribed ectodermal dysplasia syndrome. Int J Oral Maxillofac Surg 1989; 18:73-5. [PMID: 2501410 DOI: 10.1016/s0901-5027(89)80132-8] [Citation(s) in RCA: 3] [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: 01/01/2023]
Abstract
Hypoplastic-hypocalcified enamel of all permanent teeth and dysplasia of finger- and toe-nails were found in a 17-year-old Japanese male. Physical examination revealed no remarkable changes in skin, hair, sweat glands, bones, etc. Family history revealed the same abnormalities of teeth and nails in his mother's brother. A review of the literature concerning ectodermal dysplasia syndromes failed to reveal a combination of hypoplastic-hypocalcified enamel and dysplastic nails without changes in any other ectodermal tissues.
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Affiliation(s)
- Y Takeda
- Department of Oral Pathology, School of Dentistry, Iwate Medical University, Japan
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Takeda Y, Suzuki A, Kuroda M, Itagaki M, Shimono M. Pigmented ameloblastic fibro-odontoma: detection of melanin pigment in enamel. Bull Tokyo Dent Coll 1988; 29:119-23. [PMID: 3253017] [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: 01/04/2023]
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Abstract
A case of osseous hyperplasia under the pontics of fixed partial dentures in right and left mandibular first molar regions is presented. Radiographs showed hemispherical radio-opacities on the alveolar ridges. Histologic examination revealed the lesions were composed of a dense mass of mature bone with well-developed lamellae and haversian systems, viable osteocytes in lacunae and a few marrow spaces filled with loose fibrous connective tissue. The review of the literature showed osseous hyperplasia under the pontic of a fixed partial denture has been seen only in the mandibular molar or premolar regions, but no conclusion about its etiology was made.
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Affiliation(s)
- Y Takeda
- Department of Oral Pathology, School of Dentistry, Iwate Medical University, Japan
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40
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Itagaki M. [Simultaneous studies of lingual articulation, mandibular movement and nature of speech sounds in mandibular prognathism: comparison between the long face-open bite group and the short face-open bite group]. Nihon Kyosei Shika Gakkai Zasshi 1986; 45:237-49. [PMID: 3462272] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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41
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Uemura H, Komatsu M, Itagaki M, Fukui Y. [Analysis of cell surface properties by flow-cytometry in malignant lymphoma]. Gan To Kagaku Ryoho 1985; 12:385-7. [PMID: 3970559] [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: 01/08/2023]
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42
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Itagaki M, PIERINI G. Comment on“Analytic Solution Technique for Solving One-Group Diffusion Equations for Core Simulations”. J NUCL SCI TECHNOL 1984. [DOI: 10.1080/18811248.1984.9731015] [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: 10/28/2022]
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43
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Seshima M, Itagaki M, Sugawara J, Kawamura H, Itoh H. [The relation between oral cavity shape and lingual articulation in skeletal Class III cases before and after orthognathic surgery. Observation by electro-palatogram]. Nihon Kyosei Shika Gakkai Zasshi 1983; 42:273-87. [PMID: 6580353] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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44
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Ando Y, Itagaki M, Kubota M. [Traumatic root fractures--2 case reports of midroot fracture]. Shikai Tenbo 1983; 61:1325-33. [PMID: 6577621] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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45
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Kamimura N, Fukuiya Y, Komatsu M, Itagaki M. [Application of the peripheral leukocyte cytofluorogram to diagnosis and treatment of hematopoietic tumors--with special reference to its effectiveness in malignant lymphoma]. Gan To Kagaku Ryoho 1982; 9:1285-92. [PMID: 6964048] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
In 1970 Adams and Kamentsky reported on a technique for classifying human peripheral leukocytes into three groups-lymphocytes, monocytes and granulocytes using supravital staining with a solution of acridine orange, and analyzing the resulting cell suspension with the Cytofluorogram. For the purpose of clinical application of flowcytometry, we investigated the clinical significance of this cytofluorogram of peripheral leukocytes. Cytofluorograms showed characteristic pattern in such hematopoietic malignancies as acute leukemias, chronic leukemias and malignant lymphomas, and turned out to be applicable to the diagnosis of these diseases. Especially in malignant lymphoma, cytofluorogram showed either normal or abnormal pattern. An abnormal cytofluorogram indicated poor prognosis, and an abnormal pattern of cytofluorogram became normalized after chemotherapy against lymphoma. Interestingly, those patients who showed in abnormal pattern relapsed in a short period, even when they were though diagnosed in remission. These data suggest that cytofluorograms are useful in diagnosing, predicting relapse and evaluating therapeutic effects for the treatment of malignant lymphoma. We hope that the analysis of cytofluorogram of peripheral leukocytes in lymphoma will provide a new benefit for further investigation of this disease.
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Itagaki M, Teshima T, Okabe H, Maeda H. [A case of solitary myeloma of the mandible]. Nihon Koku Geka Gakkai Zasshi 1976; 22:695-701. [PMID: 1088439 DOI: 10.5794/jjoms.22.695] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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47
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Sasaki S, Kikuchi A, Tokoro H, Sato T, Itagaki M. [Bedside nursing. Bedside rehabilitation nursing of a patient with cerebral embolism]. Kangogaku Zasshi 1974; 38:535-8. [PMID: 4211313] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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48
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Yamada N, Yoshioka H, Nambu H, Itagaki M. [Therapeutic results of demethylchlortetracycline (Ledermycin) dry syrup administration in acute infections in children]. Jpn J Antibiot 1969; 22:203-5. [PMID: 4980481] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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49
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Nambu H, Itagaki M, Shibaki H, Yoshioka H. [Application of a new synthetic penicillin, hetacillin in pediatric field]. Jpn J Antibiot 1968; 21:111-4. [PMID: 5303489] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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50
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Yoshioka H, Mori H, Itagaki M, Shibaki H, Nanbu H. [A new penicillin, dicloxacillin]. J Antibiot B 1967; 20:34-6. [PMID: 5298992] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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