Internal Medicine
Online ISSN : 1349-7235
Print ISSN : 0918-2918
ISSN-L : 0918-2918
49 巻, 2 号
選択された号の論文の27件中1~27を表示しています
ORIGINAL ARTICLES
  • Daijiro Uetake, Iwao Ohno, Kimiyoshi Ichida, Yuichiro Yamaguchi, Hajim ...
    2010 年49 巻2 号 p. 89-94
    発行日: 2010年
    公開日: 2010/01/15
    ジャーナル オープンアクセス
    Objective To examine the effects of fenofibrate, an antilipotropic drug, on uric acid metabolism in healthy male subjects and on urate transporter 1 (URAT1).
    Methods Fenofibrate was administered to nine male volunteers at a dose of 300 mg (corresponding to 200 mg of micronized fenofibrate), and the metabolic parameters of uric acid were investigated for more than 12 hours. In addition, the effect of fenofibrate on URAT1-expressing cells was examined.
    Results After the administration of fenofibrate, the concentration of serum uric acid had significantly decreased from 5.8±0.4 mg/dL to 4.3±0.3 mg/dL at 10 h. Uric acid clearance and the fractional excretion of uric acid increased. Fenofibric acid, a fenofibrate metabolite, inhibited URAT1 to an extent similar to that observed with benzbromarone and losartan.
    Conclusion Fenofibrate decreased serum uric acid levels by increasing its urinary excretion, most likely through the inhibition of URAT1 by fenofibric acid, its major metabolite.
  • Atsuhisa Tamura, Masahiro Shimada, Yoshinori Matsui, Masahiro Kawashim ...
    2010 年49 巻2 号 p. 95-102
    発行日: 2010年
    公開日: 2010/01/15
    ジャーナル オープンアクセス
    Objective This study assessed the diagnostic rate of pulmonary tuberculosis (PTB) using fiberoptic bronchoscopy (FBS) in patients with suspected PTB, and negative pre-bronchoscopy smear and polymerase-chain reaction (PCR) in sputum.
    Patients and Methods We retrospectively reviewed 201 culture-positive PTB patients that underwent FBS because both smear and PCR results in sputum were negative. The positive rates of smear for acid fast bacilli, PCR for Mycobacterium tuberculosis, the presence of granuloma in transbronchial biopsy (TBB), and culture of M. tuberculosis were analyzed. In addition, the radiographic features, contribution of FBS to rapid and/or definitive diagnosis of PTB, and drug susceptibility results of M. tuberculosis were also reviewed.
    Results There were 136 males and 102 patients under the age of 40 years; non-cavitary (156 cases) and minimal disease (119 cases) on radiographs predominated. The positive rates of FBS were: 44% (smear), 62% (PCR), 61% (TBB), and 87% (culture). These rates increased in smear and PCR examinations when taken from wider spread shadows on radiographs. The combination of the various bronchoscopy samples increased the diagnostic rate to 92% when all examinations were combined. Positive culture results depended on FBS procedures in 80 cases. Twenty-one cases showed resistance to at least one of the major anti-tuberculous agents.
    Conclusion This analysis revealed high positive rates of PTB from bronchoscopy samples, providing rapid and definitive ability for PTB diagnosis, and details of drug susceptibility. Therefore, FBS is an important diagnostic procedure in patients with suspected PTB whose sputum specimens were negative both for smear and PCR analyses.
  • Hironori Uruga, Kazuma Kishi, Takeshi Fujii, Yuka Beika, Takahiro Enom ...
    2010 年49 巻2 号 p. 103-107
    発行日: 2010年
    公開日: 2010/01/15
    ジャーナル オープンアクセス
    Objective To retrospectively evaluate the efficacy and safety of gefitinib in elderly patients with advanced non-small cell lung cancer (NSCLC) harboring epidermal growth factor receptor mutations.
    Methods and Patients Nine patients aged 70 years or older who had advanced NSCLC with mutations of the epidermal growth factor receptor gene were treated with gefitinib, 250 mg daily. Clinical data, types of epidermal growth factor receptor mutations, efficacy and toxicity of gefitinib were evaluated in these patients. Tumor responses were assessed by computed tomography scan using the Response Evaluation Criteria in Solid Tumors.
    Results Six patients showed a partial response, and the other three exhibited stable disease. The overall response rate was 66.7%. The median progression-free survival was 396 days, whereas the median over all survival was 523 days. No serious toxicities were observed.
    Conclusion Gefitinib is very efficacious and safe for elderly patients with adenocarcinoma of the lung harboring an EGFR tyrosine kinase mutation. The present data support the use of gefitinib in this particular subgroup.
  • Susumu Sakamoto, Sakae Homma, Atsushi Miyamoto, Atsuko Kurosaki, Takes ...
    2010 年49 巻2 号 p. 109-115
    発行日: 2010年
    公開日: 2010/01/15
    ジャーナル オープンアクセス
    Background Acute exacerbation (AE) of idiopathic pulmonary fibrosis (IPF) is considered to be a nearly fatal condition during the clinical course of IPF, as it is unresponsive to most conventional therapies.
    Subjects and Methods To evaluate the efficacy of cyclosporin A (CsA) for AE of IPF, we conducted a retrospective study on autopsied IPF cases who developed AE and were treated with corticosteroids (CS) combined with CsA. The subjects comprised 11 males with a mean age of 69.9 years. The clinical features and prognosis of the CsA-treated group was compared to a group of 11 autopsied IPF cases with a mean age of 68.7 years who developed AE and were treated with CS alone (non-CsA-treated group).
    Results CS pulse therapy followed by CS maintenance treatment were conducted in all cases of AE. Patients in the CsA-treated group received in addition a low dosage of CsA (100-150 mg). Although 7 out of 11 patients in the CsA-treated group died of AE per se, 4 patients survived the AE. Only 2 patients died during the first episode of AE. In comparison, 7 out of 11 patients in the non-CsA-treated group died during the first episode of AE. The mean survival period after the first onset of AE was 285 days in the CsA-treated group and 60 days in the non-CsA-treated group. The prognosis of the CsA-treated group therefore was significantly better than that of non-CsA-treated group after AE of IPF.
    Conclusion Administration of CsA combined with CS may be efficacious in the treatment of AE of IPF.
  • Eiji Oda, Ryu Kawai
    2010 年49 巻2 号 p. 117-124
    発行日: 2010年
    公開日: 2010/01/15
    ジャーナル オープンアクセス
    Objective To compare two systemic inflammatory markers, high-sensitivity C-reactive protein (hs-CRP) and white blood cell count (WBC), as a component of metabolic syndrome (MetS).
    Methods Data of hs-CRP and WBC from 2,185 Japanese men and 1,383 Japanese women were examined using receiver operating characteristic (ROC) curve for diagnosing MetS and Spearman's correlation coefficients.
    Results The area under ROC curve (AUC) of hs-CRP was 0.71 in men and 0.74 in women. The AUC of WBC was 0.65 in men and 0.69 in women. The optimal cutoff point (sensitivity; specificity) of hs-CRP was 0.40 mg/L (0.69; 0.65) in men and 0.35 mg/L (0.67; 0.72) in women. The optimal cutoff point (sensitivity; specificity) of WBC was 5,600/L-6 (0.61; 0.61) in men and 5,000/L-6 (0.65; 0.63) in women. Correlations between obesity parameters, blood pressure, and liver function tests were stronger with hs-CRP than with WBC. But, no correlation between MetS-related risk factors was stronger with WBC than with hs-CRP.
    Conclusion Hs-CRP is superior to WBC as an inflammatory component of MetS in Japanese. However, WBC may be useful when hs-CRP is not available because WBC is routinely measured in clinical practice.
  • Osamu Takahashi, Sachiko Ohde, Joshua L. Jacobs, Yasuharu Tokuda, Haru ...
    2010 年49 巻2 号 p. 125-130
    発行日: 2010年
    公開日: 2010/01/15
    ジャーナル オープンアクセス
    Objective Primary care has potential to play a role for improving the patient care in Japanese health care system; however, little information is available about how patients perceive the roles of primary care physicians (PCPs) within the Japanese health care system. We aimed to assess population-level preferences for PCPs and investigated the extent to which preferences vary in relation to different population groups in Japan.
    Methods Data were extracted from a cross-sectional questionnaire survey in October 2003. An 18-item questionnaire was used to measure the preferences for PCPs. Exploratory factor analysis was performed to identify latent factors, while confirmatory factor analysis was used to evaluate the fit of the structure using structural equation modeling (SEM).
    Patients Nationally representative sample of the adult Japanese general population was chosen by controlling for age, sex, and the size of cities.
    Results A total of 2,453 adults ≥18-years-old were analyzed. SEM provided a 4-factor structural model of the population-level preference for PCPs, such as clinical competence (path coefficient (pc)=0.72), gate-keeping (pc=0.64), communication with patients or specialists (pc=0.49) and high education (pc=0.25) and demonstrated the best goodness-of-fit. Those who were middle aged, have a high family income, and a high level of education, placed more importance on gate-keeping characteristics, and the rural residents emphasized communication rather than clinical competence.
    Conclusion Our results indicate that the preferences for PCPs are divided into four main factors and underscore the variation among preferences according to different population groups, such as age, socioeconomic and educational status, and places of living. These variations should be considered to improve the primary care system in Japan.
CASE REPORTS
  • Camille Roubille, Anne-Sophie Brunel, Gérald Gahide, Hél ...
    2010 年49 巻2 号 p. 131-133
    発行日: 2010年
    公開日: 2010/01/15
    ジャーナル オープンアクセス
    Acute viral infections can lead to heart inflammation, including acute myocarditis. We report a rare case of myopericarditis in a young immunocompetent adult, in a context of recent Cytomegalovirus (CMV) infection.
    The clinical presentation was an influenzae-like syndrome, classical for a CMV infection, without any chest pain or dyspnea, but a systematic exploration showed multiple inflammation-compatible myopericardial images on MNR-scan. The diagnosis of asymptomatic myopericarditis was established. We present the MNR-scan findings and discuss the CMV cardiac effects and systematic cardiac MRI interest in viral infection.
  • Francois Roubille, Guillaume Maxant, Isabelle Serre, Pascal Colson, Pa ...
    2010 年49 巻2 号 p. 135-137
    発行日: 2010年
    公開日: 2010/01/15
    ジャーナル オープンアクセス
    We report the case of a 50-year-old man admitted for cardiac tamponade. He was diagnosed with acute pneumonia. He had no previous medical history, but exhibited a body mass index of 41. Two days before admission, he complained of chest pain irradiating to the neck lateral side. Massive cardiac tamponade developed over 48 hours. There was no obvious cause for immunodepression. Pericardial puncture was ineffective, due to obesity and fluid high viscosity. Surgery was undertaken (Marfan intervention). Pericardial fluid was found to be purulent; direct examination revealed nocardia as bacteria with typical filamentous, branching rods. Despite adapted antibiotic treatment the patient died within a few hours. Acute pericarditis due to Nocardia is discussed.
  • Masateru Takigawa, Kazuhiko Hashimura, Hatsue Ishibashi-Ueda, Naoaki Y ...
    2010 年49 巻2 号 p. 139-144
    発行日: 2010年
    公開日: 2010/01/15
    ジャーナル オープンアクセス
    Understanding the clinical characteristics of transthyretin familial amyloid polyneuropathy (TTR-FAP) is critical for early diagnosis and timely referral for liver transplantation. Here, we describe a 52-year-old man who had slight paresthesia for four years and whose final diagnosis of TTR-cardiac amyloidosis caused by sporadic FAP was delayed despite annual electrocardiography. Curative liver transplantation was postponed because of progressive cardiac involvement. This experience highlights the difficulties associated with diagnosing TTR-FAP, especially when it is sporadic, and underscores the importance of slight changes in ECG that could indicate FAP.
  • Hirofumi Noike, Kazuhiro Shimizu, Mao Takahashi, Keiichi Hirano, Masay ...
    2010 年49 巻2 号 p. 145-147
    発行日: 2010年
    公開日: 2010/01/15
    ジャーナル オープンアクセス
    Emergency coronary angiography of a 53-year-old man with acute coronary syndrome revealed stenosis in right coronary artery. During angioplasty, the ECG change showed three kind of ST deviation, namely inferior ST elevation with precordial ST depression, inferior ST elevation with precordial ST elevation, and inferior ST depression with precordial ST elevation. The present case shows that the ST deviation of the inferior ischemia with right ventricular ischemia takes various patterns. This phenomenon is decided by degree of right main coronary and right side branch blood flow.
  • Cheng-Hsueh Wu, Kang-Ling Wang, Tse-Min Lu
    2010 年49 巻2 号 p. 149-153
    発行日: 2010年
    公開日: 2010/01/15
    ジャーナル オープンアクセス
    Acute myocardial infarction (MI) complicated with acute pancreatitis has been rarely reported. A 68-year-old man presented to our department 15 hours after development of epigastric pain. In addition to his symptoms, the elevated serum pancreatic enzymes and the image study on abdominal computerized tomography all led to the diagnosis of acute pancreatitis. Elevated cardiac biomarkers and a standard 12-lead electrocardiogram (ECG) demonstrating ST-segment elevation in 5 of the 6 precordial leads suggested an attack of MI. Oral intake was resumed after medical management for his acute pancreatitis and acute MI. Coronary angiogram on day 11 revealed total occlusion of the middle segment of the left anterior-descending coronary artery. Subsequently, angioplasty with stenting was done. The patient was discharged without significant complications. It is critical to make a rapid but detailed differential diagnosis of abdominal pain. Even though acute pancreatitis-associated ECG abnormalities have been reported previously, any ECG abnormalities in a patient presenting abdominal pain should be evaluated and treated cautiously. Thorough clinical evidence, including history, physical findings, ECG, image studies and serum biomarkers, are informative in seeking and analyzing possible etiologies.
  • Jun Kinoshita, Shoichi Hata, Hiroyuki Yamazaki, Naoko Tajima
    2010 年49 巻2 号 p. 155-159
    発行日: 2010年
    公開日: 2010/01/15
    ジャーナル オープンアクセス
    A 59-year-old man was found to have diabetes mellitus five months after the diagnosis of pernicious anemia. Although the urinary C-peptide level corresponded to a non-insulin-dependent stage (39.9 μg/day), the markedly extremely elevated titers of GAD antibody suggested that this case very likely represented a non-insulin-dependent stage of slowly progressive insulin-dependent diabetes mellitus (SPIDDM). Because thyroid and adrenal functions were normal, this our case was not considered to be polyglandular autoimmune syndrome (PGAS). We report this case because patients with pernicious anemia and SPIDDM in the absence of PGAS