The Tohoku Journal of Experimental Medicine
Online ISSN : 1349-3329
Print ISSN : 0040-8727
ISSN-L : 0040-8727
237 巻, 4 号
December
選択された号の論文の13件中1~13を表示しています
Regular Contribution
  • Yasuteru Kondo, Osamu Kimura, Takayuki Kogure, Masashi Ninomiya, Rei U ...
    原稿種別: Regular Contribution
    2015 年 237 巻 4 号 p. 249-257
    発行日: 2015年
    公開日: 2015/11/12
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    Radiation therapy (RT) may be suitable for treating patients with hepatocellular carcinoma (HCC) who are difficult to treat with any other option. However, it remains unclear whether RT extends survival in these patients. Among the 957 HCC patients treated at Tohoku University Hospital from January 2007 to December 2013, only 49 patients received RT. We therefore retrospectively analyzed the outcomes of these patients; they were divided into three groups based on the reasons for choosing RT: 27 patients at Stage IV A (67.1 ± 1.6 years, 50.5 ± 2.1 Gy), 9 patients with alternative therapy (72.2 ± 2.4 years, 58.9 ± 1.1 Gy), and 13 patients who received RT after transarterial chemoembolization (TACE) (75.6 ± 2.1 years, 56.5 ± 1.5 Gy). RT was employed to ensure the local control of the lesion. The patients at Stage IV A were treated with radical RT (n = 16) or with palliative RT (n = 11). In radical RT group, the response rate was 37.5% and the complete response rate was 25%. The survival rate was 12.5 ± 2.6 months after radical RT. This is considered relatively good for Stage IV A. The disease-free survival rate was 13.0 ± 2.8 months after RT. This excellent disease-free survival indicates that RT is an alternative to other treatments. In the TACE group, patients who received the RT had the significantly long disease-free survival rate than only-TACE (18.0 ± 3.8 months vs. 11.2 ± 0.58 months). We propose that RT is effective and safe for HCC.
  • Tatsuo Yamamoto, Shinya Fuchida, Jun Aida, Katsunori Kondo, Yukio Hira ...
    原稿種別: Regular Contribution
    2015 年 237 巻 4 号 p. 259-266
    発行日: 2015年
    公開日: 2015/11/13
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    Health Japan 21 plan establishes specific targets for aspects of health including oral health for 2010, in an effort to increase health expectancy. Despite this, there has been insufficient improvement in oral health status in adults. The objective of this cross-sectional study was to determine the factors associated with effective oral health programs for adults in Japanese municipalities. Questionnaires were mailed to all 1,472 municipalities in Japan and responses were obtained from 862 municipalities (response rate: 58.6%). After excluding 71 municipalities with “unknown” answer, no answer, or lack of relevant information, we analyzed the data from the remaining 791 municipalities with or without oral health programs for adults self-reported as effective within three years. Multilevel Poisson regression models were used to examine the associations of effective programs with oral health personnel, contact with related agencies, the establishment of Health Japan 21 goals, financial status, the density of dentists and population density at the municipality level, and having oral health personnel at the prefecture level. Three hundred and fifty-four municipalities reported having effective programs. In the fully adjusted model, having dental hygienists in the municipal office (P < 0.05) and a high number of contacts with related agencies (P < 0.05) were significantly associated with having effective programs. These results suggest that having dental hygienists and contact with related agencies such as residents, local dental associations, companies, community general support centers, or medical, nursing or welfare facilities are promoting factors for effective adult oral health programs in Japanese municipalities.
Case
  • Kazuhiro Nomura, Kazuya Arakawa, Fumiyoshi Fujishima, Yuto Yamazaki, D ...
    原稿種別: Case
    2015 年 237 巻 4 号 p. 267-272
    発行日: 2015年
    公開日: 2015/11/14
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    Keratocystic odontogenic tumor (KCOT) is one of the benign developmental odontogenic cystic lesions arising from impacted teeth. In comparison to other odontogenic cysts, such as radicular cysts and dentigerous cysts, KCOT is known to be more aggressive and is associated with a relatively high recurrence rate. Traditionally, KCOT has been treated with total resection through sublabial incision. Marsupialization is advocated to reduce surgical invasion. However in all the cases, marsupialization was performed in the oral cavity. With the recent development of appropriate instruments and the endoscopic modified medial maxillectomy (EMMM) technique, which allows preservation of the inferior turbinate and nasolacrimal duct, an exclusive endoscopic approach to KCOT becomes possible. However, when the KCOT invades the hard palate, total resection of the tumor requires subtotal maxillectomy including hard palate. Consequently, as the maxillary sinus connects to the oral cavity, life-long use of a prosthesis becomes mandatory. Here we report a case of a seventeen-year-old female with a hard palate-invading KCOT who was successfully treated with the EMMM approach. The KCOT was fenestrated to the nasal cavity, leading to preservation of the hard palate. The lesion invading the hard palate was found to remain unchanged over one year upon follow-up. The trans-nasal approach with EMMM is a direct, minimally invasive method providing a direct field of view for the treatment of maxillary odontogenic cysts. Marsupialization of the KCOT with the EMMM technique might be a viable treatment option if the maxillary KCOT invades surrounding structures.
  • Ikuko Shimabukuro, Kazuhiro Yatera, Shingo Noguchi, Yukiko Kawanami, T ...
    原稿種別: Case
    2015 年 237 巻 4 号 p. 273-278
    発行日: 2015年
    公開日: 2015/11/17
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    Angiosarcoma originates from the vascular endothelium and accounts for only 1-2% of all sarcomatous malignancies. The skin is one of the most common primary sites. However, primary pulmonary angiosarcoma is rare, and only 31 cases of primary pulmonary angiosarcoma have been reported. A 79-year-old Japanese female developed bloody sputum, and chest X-ray and chest computed tomography (CT) showed consolidation with ground-glass opacity (GGO) on the right middle and lower lung fields. The bronchoscopic findings demonstrated bleeding from the right B4 and B5, and bronchial arterial embolization was subsequently performed. However, the CT findings demonstrated new pulmonary nodules with GGO in the left lung, and she presented with hemosputum and a progression of anemia. Right hemothorax also occurred, and surgical lung resection was performed to control the bleeding. The pathological analysis of the resected lung revealed the focal growth of atypical alveolar epithelioid-like cells that were positive for CD31 and negative for epithelial membrane antigen, and these atypical cells were replacing the endothelium of the pulmonary artery. Based on these findings, the patient was diagnosed with pulmonary angiosarcoma, which might originate from the endothelium of the pulmonary artery. No abnormal findings were observed except for the pulmonary involvement on systemic CT scanning. However, the patient passed away due to respiratory failure with compression of the brainstem caused by brain metastasis three months after the first visit. Early surgical resection is the important treatment for patients with angiosarcoma. In addition, we review the literature reporting the patients with primary pulmonary angiosarcoma.
Regular Contribution
  • Keun Ok An, Jae Yong Jang, Junghoon Kim
    原稿種別: Regular Contribution
    2015 年 237 巻 4 号 p. 279-286
    発行日: 2015年
    公開日: 2015/11/20
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    Prolonged sedentary time and sleep deprivation are associated with mental health problems such as depression and stress symptoms. Moreover, mental illness is linked with suicidal thoughts and suicide attempts. However, it is not clear whether sedentary time and sleep duration are associated with stress symptoms and suicidal thoughts independent of physical activity. Thus, our study aimed to identify if sedentary time and sleep duration were associated with both stress symptoms and suicidal thoughts. The participants in present cross-sectional study were 4,674 general Korean adults (1,938 male; 2,736 female), aged ≥ 20 years. Prolonged sedentary time (≥ 420 min/day) was significantly associated with the increased risk of stress symptoms (OR, 1.30; 95% CI, 1.04-1.62) compared with sedentary time of < 240 min/day. The OR for stress symptoms was significant for individuals who had ≤ 5 h/day of sleep time (OR, 1.88; 95% CI, 1.48-2.38) compared with sleep duration of ≥ 7 h/day. Moreover, prolonged sedentary time (OR, 1.55; 95% CI, 1.01-2.42 in ≥ 420 min/day vs. < 240 min/day) and short sleep duration (OR, 1.75; 95% CI, 1.17-2.62 in ≤ 5 h/day vs. ≥ 7 h/day) were significantly associated with an increased risk for suicidal thoughts after adjusting for confounding factors including physical activity. Thus, prolonged sedentary time and sleep deprivation are independently associated with both the risk of stress symptoms and suicidal thoughts. From a public health perspective, reducing sedentary time and improvement of sleep deprivation may serve as an effective strategy for preventing mental illness.
  • Seung Seok Han, Seon Ha Baek, Shin Young Ahn, Ho Jun Chin, Ki Young Na ...
    原稿種別: Regular Contribution
    2015 年 237 巻 4 号 p. 287-295
    発行日: 2015年
    公開日: 2015/11/25
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    Acute kidney injury (AKI) is a major health concern, because AKI is related with an increase in morbidity and mortality. Anemia is related to AKI in several clinical settings. However, the relationship between anemia and AKI and the effect of anemia on long-term mortality are unresolved in critically ill patients. A total of 2,145 patients admitted to the intensive care unit were retrospectively analyzed. We calculated a threshold value of hemoglobin associated with an increased risk of AKI and used this value to define anemia. The odds ratios (ORs) and hazard ratios for AKI and all-cause mortality were calculated after adjusting for multiple covariates. The OR of AKI increased depending on the decrease in hemoglobin level and the ideal threshold point of hemoglobin linked to increasing AKI risk was 10.5 g/dL. We categorized patients into anemia (< 10.5 g/dL) and non-anemia (≥ 10.5 g/dL) groups. The risk of AKI was higher in the anemia group than the non-anemia group and this trend remained significant irrespective of the AKI development time (early vs. late) or duration (< 3 days vs. ≥ 3 days). Both anemia and AKI increased the 10-year mortality risk and this risk prediction was significantly separated by the presence of anemia and AKI. Furthermore, the risk prediction remained consistent irrespective of the AKI severity (i.e., recovery, stage, or duration of AKI). Based on these, we urge clinicians to monitor anemia and AKI in critically ill patients.
  • Masako Miyashita, Masahiro Kikuya, Chizuru Yamanaka, Mami Ishikuro, Ta ...
    原稿種別: Regular Contribution
    2015 年 237 巻 4 号 p. 297-305
    発行日: 2015年
    公開日: 2015/12/02
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    After the Great East Japan Earthquake of 2011, there has been a concern about health problems among children. Therefore, we investigated the prevalence of wheeze and eczema symptoms and associated factors among children in areas primarily affected by the disaster. From 2012 to 2014, we distributed the parent-administered questionnaire to 25,198 children in all 233 public schools in the 13 municipalities of Miyagi Prefecture in northeast Japan. A total of 7,155 responses (mean age 10.5 ± 2.2 years) were received (response rate: 28.4%). The prevalence of allergic symptoms according to the International Study of Asthma and Allergies in Childhood (ISAAC) questionnaire in 2nd, 4th, 6th, and 8th graders was 12.4%, 9.9%, 9.3%, and 5.6% for wheeze, and 20.1%, 18.0%, 14.0%, and 12.4% for eczema. In multivariate logistic analysis, younger age, history of hospitalization, and difficulties in children’s daily lives as assessed by the Strengths and Difficulties Questionnaire (SDQ), were significantly and consistently associated with both allergic symptoms (both P < 0.05). Living in a coastal municipality was also associated with eczema symptoms (P = 0.0278). The prevalence of eczema symptoms in the 2nd (20.1%) and 8th (12.4%) grades was significantly higher than previously reported in Japan. Living in a coastal municipality was independently associated with eczema symptoms, and psychometric properties were also closely linked to allergic symptoms. These findings are clinically important for understanding the risks of allergic disorders after natural disasters.
  • Naoyuki Oi, Masatoshi Itoh, Yoshiko Tobimatsu, Shinichi Konno, Shinich ...
    原稿種別: Regular Contribution
    2015 年 237 巻 4 号 p. 307-315
    発行日: 2015年
    公開日: 2015/11/28
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    Stroke patients suffer from gait disturbance due to altered leg muscle actions. Many kinesiological studies have investigated muscle actions, but the metabolic activity of muscles in stroke patients remains to be investigated. We therefore evaluated energy consumption in lower extremity muscles during level walking in hemiparetic individuals. Glucose uptake was measured by positron emission tomography (PET) using 18F-fluorodeoxyglucose (18F-FDG) in eight hemiparetic (mean age: 56 years) and 11 healthy (mean age: 26 years) participants. Standardized uptake ratio (SUR) was computed in each muscle to express the 18F-FDG-uptake level. SUR was compared across gluteal, thigh, and lower leg muscles and across individual muscles within each muscle group. For each muscle, SUR was compared among the paretic limb of hemiparetic participants, the non-paretic limb of hemiparetic participants, and the right limb of healthy participants. In paretic limbs, mean SUR did not differ between the three muscle groups, or between individual muscles within each muscle group. SURs of paretic lower leg muscles and gluteus minimus muscle were significantly smaller than those of non-paretic limb and healthy participants (p < 0.05). In the non-paretic limb of hemiparetic participants, SUR of the lower leg muscles was larger than that of the thigh muscles (p < 0.05). Unexpectedly, SURs of medial hamstring and posterior tibial muscles were larger in the non-paretic limb of hemiparetic participants, compared to the right limb of healthy participants (p < 0.05). 18F-FDG PET is useful to evaluate energy consumption levels of lower extremity muscles during level walking in hemiparetic individuals.
Case
  • Yoshihiro Kamiyama, Koji Mitsuzuka, Mika Watanabe, Naoki Kawamorita, S ...
    原稿種別: Case
    2015 年 237 巻 4 号 p. 317-321
    発行日: 2015年
    公開日: 2015/12/03
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    Ductal adenocarcinoma is an unusual variant of adenocarcinoma of the prostate with a poorly understood natural history, and its treatment is not well defined. Ductal adenocarcinoma is often diagnosed at an advanced stage, because no specific tumor markers are known. Docetaxel has been used for acinar adenocarcinoma of the prostate, a common type of prostate cancer, but it is largely ineffective for ductal adenocarcinoma. Earlier studies suggested that the chemotherapy with gemcitabine and cisplatin might be effective for ductal adenocarcinoma. Here we report two patients with ductal adenocarcinoma of the prostate that did not respond to docetaxel, but responded to the gemcitabine/cisplatin chemotherapy. Patient 1 was a 59-year-old man who had lung metastasis despite androgen deprivation therapy with undetectable levels of prostate-specific antigen and who presented with brain metastasis during docetaxel chemotherapy. Pathological examination of the resected brain tumor revealed ductal adenocarcinoma with positive immunostaining for carcinoembryonic antigen. The gemcitabine/cisplatin chemotherapy achieved partial response of the lung metastasis with serum carcinoembryonic antigen levels decreasing from 11.4 ng/mL to 2.9 ng/mL. Patient 2 was a 69-year-old man with lung metastasis. Local progression appeared during androgen deprivation therapy, and the subsequent transurethral biopsy revealed ductal adenocarcinoma with positive immunostaining for neuron-specific enolase. Bone and distant lymph node metastasis appeared despite docetaxel chemotherapy. Six courses of the gemcitabine/cisplatin chemotherapy achieved partial response of metastatic lesions, with serum neuron-specific enolase levels decreasing from 118 ng/mL to 2.6 ng/mL. The gemcitabine/cisplatin chemotherapy is a potential option for treatment of advanced ductal adenocarcinoma of the prostate.
  • Hideo Sasai, Nobuyuki Shimozawa, Takahiko Asano, Norio Kawamoto, Takah ...
    原稿種別: Case
    2015 年 237 巻 4 号 p. 323-327
    発行日: 2015年
    公開日: 2015/12/04
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    Cystathionine β-synthase (CBS) deficiency, well known as classical homocystinuria, is a rare autosomal recessive inborn error of homocysteine and sulfur metabolism. CBS converts homocysteine to cystathionine. The clinical features of untreated CBS deficiency include myopia, ectopia lentis, mental retardation, skeletal anomalies resembling Marfan syndrome, and thromboembolic events. Cerebral white matter lesions (CWMLs), identified in magnetic resonance imaging (MRI), are related to various clinical conditions including ischemia, inflammation, demyelination, infection, a tumor, and metabolic disorders such as phenylketonuria. The presence of CWMLs is, however, believed to be a very rare condition in CBS-deficient patients. Herein, we report reversible CWMLs associated with hypermethioninemia caused by poor protein restriction and betaine therapy in a 21-year-old male with pyridoxine-nonresponsive CBS deficiency. T2-weighted images (T2WI) and fluid-attenuated inversion-recovery (FLAIR) images showed diffuse high signal intensity in subcortical areas extending to the deep white matter. Diffusion-weighted images (DWI) showed high signal intensity, while apparent diffusion coefficient (ADC) map demonstrated decreased ADC value in the lesions. The course of improvement after correct methionine restriction was successively followed by brain MRI. The CWMLs had regressed at 1 month after restriction, and disappeared after 5 months. ADC values were very low before proper methionine restriction, but normalized after 2 months. Use of betaine in the presence of elevated plasma methionine may increase the risk of reversible CWMLs in some CBS-deficient patients.
Regular Contribution
  • Yongzhi Li, Keiko Tanaka, Li Wang, Yasuhito Ishigaki, Nobuo Kato
    原稿種別: Regular Contribution
    2015 年 237 巻 4 号 p. 329-338
    発行日: 2015年
    公開日: 2015/11/28
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    Anti-N-methyl-D-aspartate receptor (NMDAR) encephalitis is now widely recognized and the patients with this disease show prominent psychiatric symptoms followed by seizures, respiratory failure, involuntary movement, autonomic instability, and amnesia. The anti-NMDAR antibody titer coincides with disease activity, and antibody-deprivation treatment ameliorates neurological symptoms. Previous studies have shown that clusters of NMDARs on the neuronal surface decrease in density upon incubation with the cerebrospinal fluid from patients (NMDAR-CSF), and that the induction of long-term potentiation, a cellular mechanism underlie learning and memory processes, was suppressed with NMDAR-CSF. In this study, we exposed mice to NMDAR-CSF in an attempt to reproduce the human symptoms in mice. CSF was continuously administered via a cannula placed in the lateral ventricle of the mouse that connected to an osmotic pump transplanted in the back of the mouse. From day 8-18, we evaluated the behavior of the mice using standardized tests that were performed serially. Mice exposed to NMDAR-CSF showed impaired spatial memory, as detected with the Morris water maze test. Brain tissue from mice with memory disturbances had decreased content of NMDAR protein in the hippocampal area shown by immunohistochemistry, which is consistent with the anti-NMDAR antibodies affect the expression and function of NMDARs, resulting in anti-NMDAR encephalitis-like symptoms. Also, the mice treated with the NMDAR-CSF did not show inflammatory cell infiltration or neuron loss in their brain tissue and this lack of nervous tissue destruction is encouraging as it is consistent with the idea that this disease can be treated through immunotherapy.
  • Keijiro Mukaiyama, Shigeharu Uchiyama, Yukio Nakamura, Shota Ikegami, ...
    原稿種別: Regular Contribution
    2015 年 237 巻 4 号 p. 339-343
    発行日: 2015年
    公開日: 2015/12/04
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    Alfacalcidol (ALF) and eldecalcitol (ELD) are vitamin D analogues that can be combined with anti-resorption drugs, such as bisphosphonate (BP) for the treatment of osteoporosis (OP). There has been no report comparing the effects of those vitamin D analogs in combination with BPs. Twenty female patients with OP were enrolled, and all of them were treated with ALF and BPs. After switching from ALF to ELD, we examined the effectiveness of ALF and ELD. The averaged age was 69.4 years and the period of BP usage was between 1 to 13.4 years (mean period was 3.7 years). Serum corrected calcium, serum inorganic phosphorus, serum bone specific alkaline phosphatase (BAP), and serum tartrate-resistant acid phosphatase (TRACP)-5b were measured prior to ELD and at 6 months afterwards. Bone mineral density (BMD) of the lumbar spine (L-BMD), femoral neck, and total hip BMD were assessed one year before, prior to, and one year after ELD therapy commencement. Six months after switching from ALF to ELD, BAP and TRACP-5b values significantly decreased. After one year of ALF therapy, L-BMD, total hip BMD and femoral neck H-BMD values slightly increased. In contrast, a year following the change from ALF to ELD, L-BMD significantly increased and femoral neck BMD slightly increased, but total hip BMD did not. These results suggest that the treatment with ELD after ALF significantly suppressed bone turnover and increased L-BMD. Thus, the combined therapy with ELD is more effective for OP treatment than that with ALF.
  • Daisuke Takekoshi, Shiva Arami, Todd J. Sheppard, Patricia Cole-Saffol ...
    原稿種別: Regular Contribution
    2015 年 237 巻 4 号 p. 345-352
    発行日: 2015年
    公開日: 2015/12/05
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    Systemic sclerosis, or scleroderma, is a collagen vascular disease characterized by hardening of the skin and involvement of internal organs, most commonly the esophagus. The most frequent cause of death in these patients is lung disease. Esophageal dysfunction has been implicated in the pathogenesis of interstitial lung disease. We previously developed a standard for the esophageal diameter on chest computed tomography (CT) and hypothesized that patients with esophageal dilation would be more likely to have interstitial lung disease than those without. In this study, we test this in 121 systemic sclerosis patients with interstitial lung disease and 48 of those without interstitial lung disease. For controls, we evaluated 121 patients followed at a general pulmonary clinic and the previously studied normal healthy standards. This study demonstrated that esophageal dilation is common in systemic sclerosis patients (66.3% for the maximal esophageal diameter more than or equal to 15 mm), that systemic sclerosis patients with interstitial lung disease have more dilated esophagi than those without interstitial lung disease (median 19.4 mm vs. 14.1 mm), and that esophageal parameters are negatively correlated with pulmonary function. We also found that patients from general pulmonary clinic were more likely to have dilated esophagi than normal controls (median 12.1 mm vs. 9.7 mm). The CT measurement of esophageal diameter may be a useful marker of patients at risk for developing lung disease.
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