1.Detection accuracy for epithelial dysplasia using an objective autofluorescence visualization method based on the luminance ratio
Yamamoto NANAMI ; Kawaguchi KOJI ; Fujihara HISAKO ; Hasebe MITSUHIKO ; Kishi YUTA ; Yasukawa MASAAKI ; Kumagai KENICHI ; Hamada YOSHIKI
International Journal of Oral Science 2017;9(4):200-209
The autofluorescence visualization method(AVM)uses blue excitation light to assist in the diagnosis of epithelial dysplasia. It detects epithelial dysplasia as a black area,which is known as fluorescence visualization loss(FVL). In this study, we evaluated the detection accuracy for epithelial dysplasia of the tongue using the objective AVM and assessed its possible clinical utility. Seventy-nine tongue specimens clinically suspected to have leukoplakia or squamous cell carcinoma (SCC) were analyzed. First, the AVM was subjectively performed using the Visually Enhanced Lesion scope (VELscope), and the iodine-staining method was then performed. After biopsy, the histopathological results and the luminance ratio between the lesion and healthy tissue were compared, and a receiver operating characteristic curve was created. The cutoff value for the objective AVM was determined; the lesion was considered FVL-positive or -negative when the luminance ratio was higher or lower than the cutoff value,respectively. The histopathological diagnoses among the 79 specimens were SCC (n=30),leukoplakia with dysplasia (n=34),and leukoplakia without dysplasia (n=15). The cutoff value of the luminance ratio was 1.62, resulting in 66 FVL-positive and 13 FVL-negative specimens. The luminance ratio was significantly higher in the epithelial dysplasia-positive than -negative group (P<0.000 1). The objective AVM showed much higher consistency between histopathological results than did the two methods (kappa statistic=0.656). In conclusion, objective autofluorescence visualization has a potential as an auxiliary method for diagnosis of epithelial dysplasia.
2.Association between fruit and vegetable allergies and pollen-food allergy syndrome in Japanese children: a multicenter cross-sectional case series
Yutaka TAKEMURA ; Yuri TAKAOKA ; Tomoyuki ARIMA ; Hiroki MASUMI ; Koji YAMASAKI ; Megumi NAGAI ; Keisuke SUGIMOTO ; Masaaki HAMADA ; Tomoko TAKANO ; Masaaki DOI ; Tomoko KAWAKAMI ; Makoto KAMEDA
Asia Pacific Allergy 2020;10(1):9-
BACKGROUND: Recently, the prevalence of food allergies during childhood is increasing, with fruits being common allergens. However, data on allergens that cause fruit and vegetable allergies and pollen-food allergy syndrome (PFAS) in childhood are relatively few. This study aimed to examine the allergens in fruit and vegetable allergies in pediatric patients and to determine the association between fruit and vegetable allergies and PFAS.OBJECTIVE: This study aimed to examine the current status of fruit and vegetable allergies in Japanese children.METHODS: This was a multicenter case series observational study. The participants included children aged <15 years who developed allergic symptoms after eating fruits and vegetables and subsequently received treatment in the Pediatric Department of 6 hospitals in the Osaka Prefecture in Japan during the study period from August 2016 to July 2017. Participants' information was obtained using a questionnaire, and data were obtained by performing several types of allergy tests using blood samples.RESULTS: A total of 97 children (median age, 9 years; 56 males) were included in the study. Apple was the most common allergen, followed by peach, kiwi, cantaloupe, and watermelon. A total of 74 participants (76%) exhibited allergic symptoms due to PFAS; moreover, pathogenesis-related protein-10 (PR-10) was the most common allergen superfamily. On the contrary, in the group where neither PR-10 nor profilin was sensitized, kiwi and banana were the most common allergens, and the age of onset was lower than that in the PFAS group. Specific antibody titer was significantly associated with Birch for Bet v1 and latex for Bet v2 (r = 0.99 and r = 0.89).CONCLUSION: When we examine patients with fruit and vegetable allergies, we should first consider PFAS even in childhood specifically for children greater than 4 years old.
Age of Onset
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Allergens
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Asian Continental Ancestry Group
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Betula
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Child
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Citrullus
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Clinical Study
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Cucumis melo
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Eating
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Food Hypersensitivity
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Fruit
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Humans
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Hypersensitivity
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Japan
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Latex
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Musa
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Observational Study
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Prevalence
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Profilins
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Prunus persica
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Rhinitis
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Rhinitis, Allergic, Seasonal
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Vegetables
3.Effectiveness of a community-based integrated care ward (CICW) on 90-day readmission among the elderly people: a retrospective cohort study of a rural area in Japan
Keiichi SHIMATANI ; Tatsuya HIRAKI ; Kyoichi DEGUCHI ; Koji ONO
Journal of Rural Medicine 2021;16(4):236-244
Objective: Community-based integrated care wards (CICW) play a role in supporting the return of patients to their homes. However, studies investigating the readmission risk associated with CICW are lacking. To investigate the influence of CICW on readmission, we conducted a retrospective cohort study among Japanese elderly people.Materials and Methods: This study used data from the Diagnosis Procedure Combination (DPC) and medical records of the Hamada Medical Center, Shimane Prefecture in 2014–2019. The number of subjects and readmission in each hospitalization case (general ward only [GW] and CICW) were 1,521 and 416 subjects and 152 and 49 cases, respectively. We selected the hospitalization cases for heart failure (I30–I52), ischemic heart disease (I20–I25), pneumonia (J09–J18), chronic lower respiratory tract diseases (J40–J47), intestinal diseases (K55–K64), cerebrovascular disease (I60–I69), gallbladder, bile duct, and pancreatic diseases (K80–K87) from the International Statistical Classification of Diseases and Related Health Problems (ICD-10). The hazard ratios (HRs) and 95% confidence intervals (CIs) for readmission via a CICW were estimated using a multivariate Cox proportional hazards model.Results: The HRs for readmission associated with CICW were not different between the shorter and longer durations, considering the percentage of CICW stay. Compared with GW cases, the HR of CICW cases was 0.40 (95% CI, 0.17–0.92) in coordination with outside agencies of hospital discharge support. While the HR of GW cases was 2.35 (95% CI 1.01–5.47), a significantly increased risk was observed in people living alone. A similar risk was not observed in CICW cases with the HR of 0.56 (95% CI 0.15–2.07).Conclusion: The present study observed decreased risk of readmission among the patients discharged from CICW, compared to GW. Further research is required to clarify the causal factors for this decreased risk.
4.Total Cholesterol Level for Assessing Pancreatic Insufficiency Due to Chronic Pancreatitis.
Kenji HIRANO ; Tomotaka SAITO ; Suguru MIZUNO ; Minoru TADA ; Naoki SASAHIRA ; Hiroyuki ISAYAMA ; Miho MATSUKAWA ; Gyotane UMEFUNE ; Dai AKIYAMA ; Kei SAITO ; Shuhei KAWAHATA ; Naminatsu TAKAHARA ; Rie UCHINO ; Tsuyoshi HAMADA ; Koji MIYABAYASHI ; Dai MOHRI ; Takashi SASAKI ; Hirofumi KOGURE ; Natsuyo YAMAMOTO ; Yosuke NAKAI ; Kazuhiko KOIKE
Gut and Liver 2014;8(5):563-568
BACKGROUND/AIMS: To determine the nutritional markers important for assessing the degree of pancreatic insufficiency due to chronic pancreatitis in routine clinical practice. METHODS: A total of 137 patients with chronic pancreatitis were followed up for more than 1 year. They were divided into two groups: a pancreatic diabetes mellitus (DM) group, consisting of 47 patients undergoing medical treatment for DM of pancreatic origin, and a nonpancreatic DM group, consisting of 90 other patients (including 86 patients without DM). Serum albumin, prealbumin, total cholesterol, cholinesterase, magnesium, and hemoglobin were compared between the two groups. RESULTS: The total cholesterol was significantly lower in the pancreatic than the nonpancreatic DM group (164 mg/dL vs 183 mg/dL, respectively; p=0.0028). Cholinesterase was significantly lower in the former group (263 U/L vs 291 U/L, respectively; p=0.016). Among the 37 patients with nonalcoholic pancreatitis, there was no difference in the cholinesterase levels between the pancreatic and nonpancreatic (296 U/L vs 304 U/L, respectively; p=0.752) DM groups, although cholesterol levels remained lower in the former (165 mg/dL vs 187 mg/dL, respectively; p=0.052). CONCLUSIONS: Cholinesterase levels are possibly affected by concomitant alcoholic liver injury. The total cholesterol level should be considered when assessing pancreatic insufficiency due to chronic pancreatitis.
Adult
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Aged
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Aged, 80 and over
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Cholesterol/*blood
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Cholinesterases/blood
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Diabetes Mellitus, Type 2/complications
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Exocrine Pancreatic Insufficiency/*blood/etiology
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Female
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Follow-Up Studies
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Humans
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Liver Cirrhosis, Alcoholic/blood
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Male
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Middle Aged
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Nutritional Status
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Pancreas/enzymology
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Pancreatitis, Alcoholic/blood/complications
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Pancreatitis, Chronic/blood/*complications
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Serum Albumin/analysis
5.A Novel, Fully Covered Laser-Cut Nitinol Stent with Antimigration Properties for Nonresectable Distal Malignant Biliary Obstruction: A Multicenter Feasibility Study.
Hiroyuki ISAYAMA ; Kazumichi KAWAKUBO ; Yousuke NAKAI ; Kouta INOUE ; Chimyon GON ; Saburo MATSUBARA ; Hirofumi KOGURE ; Yukiko ITO ; Takeshi TSUJINO ; Suguru MIZUNO ; Tsuyoshi HAMADA ; Rie UCHINO ; Koji MIYABAYASHI ; Keisuke YAMAMOTO ; Takashi SASAKI ; Natsuyo YAMAMOTO ; Kenji HIRANO ; Naoki SASAHIRA ; Minoru TADA ; Kazuhiko KOIKE
Gut and Liver 2013;7(6):725-730
BACKGROUND/AIMS: Stent migration occurs frequently, but the prevention of complications resulting from covered self-expandable metal stents (C-SEMSs) remains unresolved. We prospectively assessed a newly developed C-SEMS, a modified covered Zeo stent (m-CZS), in terms of its antimigration effect. METHODS: Between February 2010 and January 2011, an m-CZS was inserted into 42 patients (31 initial drainage cases and 11 reintervention cases) at a tertiary referral center and three affiliated hospitals. The laser-cut stent was flared for 1.5 cm at both ends, with a 1 cm raised bank located 1 cm in from each flared end. The main outcome of this study was the rate of stent migration, and secondary outcomes were the rate of recurrent biliary obstruction (RBO), the time to RBO, the frequencies of complications, and overall survival. RESULTS: Of the 31 patients with initial drainage, stent migration occurred in four (12.9%, 95% confidence interval, 5.1% to 29.0%), with a mean time of 131 days. RBO occurred in 18 (58%), with a median time to RBO of 107 days. Following previous C-SEMS migration, seven of 10 patients (70%) did not experience m-CZS migration until death. CONCLUSIONS: m-CZSs with antimigration properties effectively, although not completely, prevented stent migration after stent insertion.
Aged
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Aged, 80 and over
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Alloys
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Carcinoma/*complications
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Cholestasis/etiology/*therapy
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Digestive System Neoplasms/*complications
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Drainage
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Equipment Design
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Feasibility Studies
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Female
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Humans
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Kaplan-Meier Estimate
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Lymphatic Metastasis
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Male
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Middle Aged
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*Prosthesis Failure
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Recurrence
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Reoperation
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*Stents/adverse effects
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Time Factors
6.Effectiveness of 5-day Post-exposure Prophylactic Oseltamivir and Its Effect on Hospital Management
Takayuki MOKUBO ; Mayuko HAMADA ; Yasutomo ISHII ; Aya MIYAMOTO ; Koichiro MUKAI ; Yuki TOKUTAKE ; Koji UEDA ; Hiroshi MATSUOKA
Journal of the Japanese Association of Rural Medicine 2021;69(5):489-493
Prophylaxis is sometimes offered to inpatients who share a room with, or individuals who have been in close contact with, patients who have contracted influenza. In our hospital, 5-day prophylactic oseltamivir has been used as a standard procedure. Here, we investigated the effectiveness of this post-exposure prophylaxis for inpatients and healthcare professionals, as well as its effect on hospital management. The study period was 5 years from fiscal year 2013 to fiscal year 2017, and the effectiveness outcome was the secondary infection rate. Medication costs for this prophylaxis were compared with those for oseltamivir used according to the package insert. The secondary infection rates were 3.0% and 0.5% in 133 inpatients and 434 healthcare professionals who had received post-exposure oseltamivir, respectively. The medication costs were reduced by 50% compared with the estimated costs for 10-day oseltamivir administration. The effectiveness of 5-day prophylactic oseltamivir was similar to or higher than that reported previously, indicating that this prophylaxis was effective. Moreover, 5-day post-exposure prophylactic oseltamivir is expected to reduce the prolongation of hospital stay and influenza outbreaks and thus contribute to hospital management.
7.Possibility of non-invasive screening with urine ferritin value for iron deficiency in college athletes
Mioko NAGASHIMA ; Koji HAMADA ; Misato SAKANAKA ; Isao MATSUMURA ; Katsuyuki SHIOKAWA ; Haruka TOYODA ; Makoto OCHO ; Sayuri MATSUOKA ; Kei YUI
Japanese Journal of Physical Fitness and Sports Medicine 2022;71(5):455-461
Iron deficiency in athletes induces negative effects on their athletic performances. The present study aimed to examine a possibility of non-invasive screening with urine ferritin value for iron deficiency by examining its association with serum ferritin value. A group of 30 male college soccer players,13 male endurance runners, 22 female volleyball players, and 9 female long distance runners voluntarily participated in this study. Blood samples were collected before breakfast. The urinary samples were collected to the special tube in the morning and analyzed by ELISA in accordance with the manufacture’s specification. The urinary ferritin value was significantly correlated with serum ferritin value (r=0.32, p<0.05). In addition, the corresponding association was improved in athletes whose urinary ferritin values were less than 2314 ng/gCre (n=52) (r=0.49, p<0.05). In each of male and female athletes, the results on the event-related differences in urinary ferritin had a similar trend as those on serum ferritin. In future studies, further testing should be accomplished using larger numbers of athletes for use the urine ferritin as non-invasive screening iron deficiency in athletes.
8.Determinants of bone health in elderly Japanese men: study design and key findings of the Fujiwara-kyo Osteoporosis Risk in Men (FORMEN) cohort study.
Yuki FUJITA ; Junko TAMAKI ; Katsuyasu KOUDA ; Akiko YURA ; Yuho SATO ; Takahiro TACHIKI ; Masami HAMADA ; Etsuko KAJITA ; Kuniyasu KAMIYA ; Kazuki KAJI ; Koji TSUDA ; Kumiko OHARA ; Jong-Seong MOON ; Jun KITAGAWA ; Masayuki IKI
Environmental Health and Preventive Medicine 2021;26(1):51-51
BACKGROUND:
The Fujiwara-kyo Osteoporosis Risk in Men (FORMEN) study was launched to investigate risk factors for osteoporotic fractures, interactions of osteoporosis with other non-communicable chronic diseases, and effects of fracture on QOL and mortality.
METHODS:
FORMEN baseline study participants (in 2007 and 2008) included 2012 community-dwelling men (aged 65-93 years) in Nara prefecture, Japan. Clinical follow-up surveys were conducted 5 and 10 years after the baseline survey, and 1539 and 906 men completed them, respectively. Supplemental mail, telephone, and visit surveys were conducted with non-participants to obtain outcome information. Survival and fracture outcomes were determined for 2006 men, with 566 deaths identified and 1233 men remaining in the cohort at 10-year follow-up.
COMMENTS
The baseline survey covered a wide range of bone health-related indices including bone mineral density, trabecular microarchitecture assessment, vertebral imaging for detecting vertebral fractures, and biochemical markers of bone turnover, as well as comprehensive geriatric assessment items. Follow-up surveys were conducted to obtain outcomes including osteoporotic fracture, cardiovascular diseases, initiation of long-term care, and mortality. A complete list of publications relating to the FORMEN study can be found at https://www.med.kindai.ac.jp/pubheal/FORMEN/Publications.html .
Aged
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Bone Density
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Cardiovascular Diseases/etiology*
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Cohort Studies
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Geriatric Assessment
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Humans
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Independent Living
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Japan/epidemiology*
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Long-Term Care/statistics & numerical data*
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Male
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Middle Aged
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Osteoporosis/etiology*
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Osteoporotic Fractures/etiology*
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Risk Factors