1.Intestinal ultrasound for intestinal Behçet disease reflects endoscopic activity and histopathological findings
Katsuki YAGUCHI ; Reiko KUNISAKI ; Sho SATO ; Kaori HIRAI ; Misato IZUMI ; Yoshimi FUKUNO ; Mami TANAKA ; Mai OKAZAKI ; Rongrong WU ; Yurika NISHIKAWA ; Yusuke MATSUNE ; Shunsuke SHIBUI ; Yoshinori NAKAMORI ; Masafumi NISHIO ; Mao MATSUBAYASHI ; Tsuyoshi OGASHIWA ; Ayako FUJII ; Kenichiro TORITANI ; Hideaki KIMURA ; Eita KUMAGAI ; Yukiko SASAHARA ; Yoshiaki INAYAMA ; Satoshi FUJII ; Toshiaki EBINA ; Kazushi NUMATA ; Shin MAEDA
Intestinal Research 2024;22(3):297-309
		                        		
		                        			 Background/Aims:
		                        			Intestinal Behçet disease is typically associated with ileocecal punched-out ulcers and significant morbidity and mortality. Intestinal ultrasound is a noninvasive imaging technique for disease monitoring. However, no previous reports have compared intestinal ultrasound with endoscopic ulcer activity or histopathological findings for intestinal Behçet disease. We evaluated the usefulness of intestinal ultrasound for assessing the activity of ileocecal ulcers in intestinal Behçet disease. 
		                        		
		                        			Methods:
		                        			We retrospectively compared intestinal ultrasound findings with 73 corresponding endoscopic images and 6 resected specimens. The intestinal ultrasound findings were assessed for 7 parameters (bowel wall thickness, vascularity [evaluated using the modified Limberg score with color Doppler], bowel wall stratification, white-plaque sign [strong hyperechogenic lines or spots], mesenteric lymphadenopathy, extramural phlegmons, and fistulas), and endoscopic ulcer activity was classified into active, healing, and scar stages. Histopathological findings were evaluated by consensus among experienced pathologists.  
		                        		
		                        			Results:
		                        			Bowel wall thickness (P< 0.001), vascularity (P< 0.001), loss of bowel wall stratification (P= 0.015), and white-plague sign (P= 0.013) were significantly exacerbated in the endoscopic active ulcer stage. Receiver operating characteristic curve analysis revealed that a bowel wall thickness of > 5.5 mm (sensitivity 89.7%, specificity 85.3%) was potentially useful for detecting active lesions. When compared with histopathological findings, an increase in bowel wall thickness reflected the ulcer marginal ridge, and the white-plaque sign reflected the ulcer bottom.  
		                        		
		                        			Conclusions
		                        			Intestinal ultrasound is useful for monitoring intestinal ulcer activity in intestinal Behçet disease. 
		                        		
		                        		
		                        		
		                        	
2.Weekend and off-hour effects on the incidence of cerebral palsy: contribution of consolidated perinatal care.
Satoshi TOYOKAWA ; Junichi HASEGAWA ; Tsuyomu IKENOUE ; Yuri ASANO ; Emi JOJIMA ; Shoji SATOH ; Tomoaki IKEDA ; Kiyotake ICHIZUKA ; Satoru TAKEDA ; Nanako TAMIYA ; Akihito NAKAI ; Keiya FUJIMORI ; Tsugio MAEDA ; Hideaki MASUZAKI ; Hideaki SUZUKI ; Shigeru UEDA
Environmental Health and Preventive Medicine 2020;25(1):52-52
		                        		
		                        			OBJECTIVE:
		                        			This study estimated the effects of weekend and off-hour childbirth and the size of perinatal medical care center on the incidence of cerebral palsy.
		                        		
		                        			METHODS:
		                        			The cases were all children with severe cerebral palsy born in Japan from 2009 to 2012 whose data were stored at the Japan Obstetric Compensation System for Cerebral Palsy database, a nationally representative database. The inclusion criteria were the following: neonates born between January 2009 and December 2012 who had a birth weight of at least 2000 g and gestational age of at least 33 weeks and who had severe disability resulting from cerebral palsy independent of congenital causes or factors during the neonatal period or thereafter. Study participants were restricted to singletons and controls without report of death, scheduled cesarean section, or ambulance transportation. The controls were newborns, randomly selected by year and type of delivery (normal spontaneous delivery without cesarean section and emergency cesarean section) using a 1:10 case to control ratio sampled from the nationwide Japan Society of Obstetrics and Gynecology database.
		                        		
		                        			RESULTS:
		                        			A total of 90 cerebral palsy cases and 900 controls having normal spontaneous delivery without cesarean section were selected, as were 92 cerebral palsy cases and 920 controls with emergent cesarean section. A significantly higher risk for cerebral palsy was found among cases that underwent emergent cesarean section on weekends (odds ratio [OR] 1.72, 95% confidence interval [CI] 1.06-2.81) and during the night shift (OR 2.29, 95% CI 1.30-4.02). No significant risk was found among normal spontaneous deliveries on weekends (OR 1.63, 95% CI 0.97-2.73) or during the quasi-night shift (OR 1.26, 95% CI 0.70-2.27). Regional perinatal care centers showed significantly higher risk for cerebral palsy in both emergent cesarean section (OR 2.35, 95% CI 1.47-3.77) and normal spontaneous delivery (OR 2.92, 95% CI 1.76-4.84).
		                        		
		                        			CONCLUSION
		                        			Labor on weekends, during the night shift, and at regional perinatal medical care centers was associated with significantly elevated risk for cerebral palsy in emergency cesarean section.
		                        		
		                        		
		                        		
		                        			Case-Control Studies
		                        			;
		                        		
		                        			Cerebral Palsy
		                        			;
		                        		
		                        			epidemiology
		                        			;
		                        		
		                        			etiology
		                        			;
		                        		
		                        			Delivery, Obstetric
		                        			;
		                        		
		                        			statistics & numerical data
		                        			;
		                        		
		                        			Health Facilities
		                        			;
		                        		
		                        			statistics & numerical data
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Incidence
		                        			;
		                        		
		                        			Infant, Newborn
		                        			;
		                        		
		                        			Japan
		                        			;
		                        		
		                        			epidemiology
		                        			;
		                        		
		                        			Parturition
		                        			;
		                        		
		                        			Perinatal Care
		                        			;
		                        		
		                        			statistics & numerical data
		                        			;
		                        		
		                        			Retrospective Studies
		                        			;
		                        		
		                        			Time Factors
		                        			
		                        		
		                        	
3.Association between high psychological distress and poor oral health-related quality of life (OHQoL) in Japanese community-dwelling people: the Nagasaki Islands Study.
Ai SEKIGUCHI ; Shin-Ya KAWASHIRI ; Hideaki HAYASHIDA ; Yuki NAGAURA ; Kenichi NOBUSUE ; Fumiaki NONAKA ; Hirotomo YAMANASHI ; Masayasu KITAMURA ; Koji KAWASAKI ; Hideki FUKUDA ; Takahiro IWASAKI ; Toshiyuki SAITO ; Takahiro MAEDA
Environmental Health and Preventive Medicine 2020;25(1):82-82
		                        		
		                        			BACKGROUND:
		                        			We investigated the association between psychological distress and oral health status/oral health-related quality of life (OHQoL) in Japanese community-dwelling people.
		                        		
		                        			METHODS:
		                        			We conducted a cross-sectional study using data from the Nagasaki Islands Study. A total of 1183 (455 men and 728 women) has been analyzed in this study. Psychological distress was measured using the Kessler Psychological Distress Scale (K6). Oral health status was measured by dental examination. The OHQoL was measured using the General Oral Health Assessment Index (GOHAI). We defined the total score of ≥5 points on the K6 as high psychological distress (high-K6 group).
		                        		
		                        			RESULTS:
		                        			The multiple linear regression analysis to identify the GOHAI showed that gender, K6, the total number of teeth, the number of dental caries, and visiting a dental clinic within the past 6 months significantly associated with the GOHAI. Among all of these variables, high-K6 (≥ 5) was a substantial contributing factor of the GOHAI (β = - 0.23, 95% Cl - 2.31 to -1.41, p < 0.0001).
		                        		
		                        			CONCLUSIONS
		                        			It is likely that the individual with high psychological distress was strongly related to poor OHQoL even in the general population.
		                        		
		                        		
		                        		
		                        			Aged
		                        			;
		                        		
		                        			Cross-Sectional Studies
		                        			;
		                        		
		                        			Dental Caries/epidemiology*
		                        			;
		                        		
		                        			Female
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Independent Living/statistics & numerical data*
		                        			;
		                        		
		                        			Japan/epidemiology*
		                        			;
		                        		
		                        			Linear Models
		                        			;
		                        		
		                        			Male
		                        			;
		                        		
		                        			Middle Aged
		                        			;
		                        		
		                        			Oral Health/statistics & numerical data*
		                        			;
		                        		
		                        			Quality of Life/psychology*
		                        			;
		                        		
		                        			Sex Factors
		                        			;
		                        		
		                        			Stress, Psychological/epidemiology*
		                        			
		                        		
		                        	
4.Association between human T cell leukemia virus type-1 (HTLV-1) infection and advanced periodontitis in relation to atherosclerosis among elderly Japanese: a cross-sectional study.
Yuji SHIMIZU ; Hirotomo YAMANASHI ; Masayasu KITAMURA ; Reiko FURUGEN ; Takahiro IWASAKI ; Hideki FUKUDA ; Hideaki HAYASHIDA ; Koji KAWASAKI ; Kairi KIYOURA ; Shin-Ya KAWASHIRI ; Toshiyuki SAITO ; Atsushi KAWAKAMI ; Takahiro MAEDA
Environmental Health and Preventive Medicine 2019;24(1):81-81
		                        		
		                        			BACKGROUND:
		                        			Human T cell leukemia virus type-1 (HTLV-1) stimulates inflammation activity. Our previous study revealed a positive association between asymptomatic HTLV-1 infection and advanced periodontitis among elderly Japanese individuals with low levels of hematopoietic activity (reflected by reticulocyte levels). Since low hematopoietic activity has been correlated with low-grade inflammation and low-grade inflammation is associated with atherosclerosis, the status of atherosclerosis could, in turn, determine the nature of this association.
		                        		
		                        			METHODS:
		                        			To this end, a cross-sectional study of 907 elderly Japanese individuals (aged 60-99 years), who had participated in dental health check-up during the period 2016-2018, was conducted. Advanced periodontitis was defined as periodontal pocket ≥ 6.0 mm.
		                        		
		                        			RESULTS:
		                        			Among the study population, 295 (32.5%) were found to have atherosclerosis defined as a carotid intima-media thickness (CIMT) of ≥ 1.1 mm. HTLV-1 infection was positively associated with advanced periodontitis in participants with atherosclerosis, but no significant associations were observed among the participants without atherosclerosis. The known risk factors' (including reticulocyte and CIMT) adjusted odds ratio (OR) and 95% confidence interval (CI) of advanced periodontitis were OR 2.01 and 95% CI 1.06-3.81 for participants with atherosclerosis and OR 0.61 and 95% CI 0.34-1.12 for participants without atherosclerosis.
		                        		
		                        			CONCLUSION
		                        			This study found a significant association between HTLV-1 infection and advanced periodontitis among elderly Japanese with atherosclerosis. However, this association is absent in individuals without atherosclerosis, suggesting that atherosclerosis might act as a determinant in the association between HTLV-1 infection and advanced periodontitis among elderly Japanese.
		                        		
		                        		
		                        		
		                        	
5.Association between human T cell leukemia virus 1 (HTLV-1) infection and advanced periodontitis in relation to hematopoietic activity among elderly participants: a cross-sectional study.
Yuji SHIMIZU ; Hirotomo YAMANASHI ; Masayasu KITAMURA ; Reiko FURUGEN ; Takahiro IWASAKI ; Hideki FUKUDA ; Hideaki HAYASHIDA ; Koji KAWASAKI ; Kairi KIYOURA ; Shin-Ya KAWASHIRI ; Toshiyuki SAITO ; Atsushi KAWAKAMI ; Takahiro MAEDA
Environmental Health and Preventive Medicine 2019;24(1):42-42
		                        		
		                        			BACKGROUND:
		                        			We reported that human T cell leukemia virus 1 (HTLV-1) infection is positively associated with atherosclerosis. Recent evidence has revealed a close association of periodontitis with atherosclerosis, endothelial dysfunction, and disruption of the microcirculation. However, the association between HTLV-1 and advanced periodontitis has not been investigated to date. Since hematopoietic activity is closely linked to endothelial maintenance activity and is known to decline with age, we hypothesized that the state of hematopoietic activity influenced the association between HTLV-1 and advanced periodontitis in elderly participants.
		                        		
		                        			METHODS:
		                        			A cross-sectional study was performed including 822 elderly participants aged 60-99 years who participated in a dental health check-up. Advanced periodontitis was defined as a periodontal pocket ≥ 6.0 mm. Participants were classified as having low or high hematopoietic activity according to the median values of reticulocytes.
		                        		
		                        			RESULTS:
		                        			HTLV-1 infection was positively related to advanced periodontitis among participants with lower hematopoietic activity (lower reticulocyte count), but not among participants with higher hematopoietic activity (higher reticulocyte count). The adjusted odds ratio (95% confidence interval) considering potential confounding factors was 1.92 (1.05-3.49) for participants with a lower reticulocyte count and 0.69 (0.35-1.36) for participants with a higher reticulocyte count.
		                        		
		                        			CONCLUSIONS
		                        			Among elderly participants, the association between HTLV-1 infection and advanced periodontitis is influenced by hematopoietic activity. Since hematopoietic activity is associated with endothelial maintenance, these findings provide an efficient tool for clarifying the underlying mechanism of the progression of periodontitis among elderly participants.
		                        		
		                        		
		                        		
		                        			Aged
		                        			;
		                        		
		                        			Aged, 80 and over
		                        			;
		                        		
		                        			Cross-Sectional Studies
		                        			;
		                        		
		                        			Female
		                        			;
		                        		
		                        			HTLV-I Infections
		                        			;
		                        		
		                        			physiopathology
		                        			;
		                        		
		                        			Hematopoiesis
		                        			;
		                        		
		                        			physiology
		                        			;
		                        		
		                        			Human T-lymphotropic virus 1
		                        			;
		                        		
		                        			physiology
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Japan
		                        			;
		                        		
		                        			epidemiology
		                        			;
		                        		
		                        			Male
		                        			;
		                        		
		                        			Middle Aged
		                        			;
		                        		
		                        			Odds Ratio
		                        			;
		                        		
		                        			Periodontitis
		                        			;
		                        		
		                        			epidemiology
		                        			;
		                        		
		                        			virology
		                        			;
		                        		
		                        			Prevalence
		                        			;
		                        		
		                        			Risk Factors
		                        			
		                        		
		                        	
6.Hepatocyte growth factor and carotid intima-media thickness in relation to circulating CD34-positive cell levels.
Yuji SHIMIZU ; Shimpei SATO ; Jun KOYAMATSU ; Hirotomo YAMANASHI ; Mako NAGAYOSHI ; Shin-Ya KAWASHIRI ; Keita INOUE ; Shoichi FUKUI ; Hideaki KONDO ; Seiko NAKAMICHI ; Yasuhiro NAGATA ; Takahiro MAEDA
Environmental Health and Preventive Medicine 2018;23(1):16-16
		                        		
		                        			BACKGROUND:
		                        			Hepatocyte growth factor (HGF) may act as a possible biochemical index for vascular damage, although evidence for the association between HGF and carotid intima-media thickness (CIMT) is limited. Since both HGF and circulating CD34-positive cells play an important role in endothelial repair, circulating CD34-positive cell levels may influence the association between HGF and CIMT.
		                        		
		                        			METHODS:
		                        			We conducted a cross-sectional study of 269 elderly Japanese men aged 60-69 years who had undertaken an annual medical checkup from 2014 to 2015.
		                        		
		                        			RESULTS:
		                        			The median value for circulating CD34-positive cells was 0.93 cells/μL. Among the study population, 135 men showed low circulating CD34-positive cell levels (≤ 0.93 cells/μL). By multivariable linear regression analysis, HGF was found to be significantly positively associated with CIMT only to participants with low circulating CD34-positive cell levels, with a multi-adjusted β of 0.26 (p = 0.005) and 0.002 (0.986) for low and high circulating CD34-positive cell levels, respectively. In addition, a significant interaction was observed between HGF and circulating CD34-positive cell levels (low and high) on CIMT (multivariable p value of 0.049). A positive association exists between HGF and CIMT in elderly Japanese men, limited to participants with low circulating CD34-positive cell levels.
		                        		
		                        			CONCLUSION
		                        			A positive association exists between HGF and CIMT in community-dwelling elderly Japanese men, which is limited to participants with low numbers of circulating CD34-positive cells. Our findings indicate that circulating CD34-positive cell levels could determine the influence of HGF on CIMT in elderly Japanese men.
		                        		
		                        		
		                        		
		                        			Aged
		                        			;
		                        		
		                        			Antigens, CD34
		                        			;
		                        		
		                        			blood
		                        			;
		                        		
		                        			Biomarkers
		                        			;
		                        		
		                        			blood
		                        			;
		                        		
		                        			Carotid Intima-Media Thickness
		                        			;
		                        		
		                        			Cross-Sectional Studies
		                        			;
		                        		
		                        			Hepatocyte Growth Factor
		                        			;
		                        		
		                        			metabolism
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Japan
		                        			;
		                        		
		                        			Male
		                        			;
		                        		
		                        			Middle Aged
		                        			
		                        		
		                        	
7.Evaluation of Catheter-Directed Thrombolysis for Acute Deep Vein Thrombosis
Tsutomu Hattori ; Hideaki Maeda ; Hisaki Umezawa ; Masakazu Goshima ; Tetsuya Nakamura ; Shinji Wakui ; Tatsuhiko Nishii ; Nanao Negishi
Japanese Journal of Cardiovascular Surgery 2005;34(6):401-405
		                        		
		                        			
		                        			We report the efficacy of catheter-directed thrombolysis (CDT) for acute deep vein thrombosis. Between January 2003 and August 2004, 20 patients were treated with CDT for occlusive femoral, ilio-femoral and vena caval thrombosis, for less than 2 weeks from onset. Average age was 56.4 years (range 30-78 years), 11 patients were male, and the duration of leg symptoms was 4.4 days (range 1-12 days). Routine temporary inferior vena caval filters were used, and a multi-lumen catheter was inserted from the popliteal vein. Urokinase was used via the catheter by the combination drip infusion method and pulse-spray method. All patients received heparin and stasis of venous flow was prevented with intermittent pneumatic compression. If thrombus remained, mechanical thrombolysis was necessary. Metallic stents were implanted for iliac vein compression syndrome and organized thrombus. Venographic severity score (VS score) and extremity circumference were used to evaluate the effects of treatment. The duration of the treatment was 5.0±0.28 days (range 2-9 days) and the total dosage of urokinase was 1, 025, 000±57, 000 units (range 360, 000-1, 680, 000 unit). One (5%) iliac vein compression syndrome and two (10%) organized thrombi were treated by implanted metallic stents. Giant thrombi was captured by temporary inferior vena caval filters in two patients, but there was no pulmonary embolism. Two patients had thrombophilia, one was antiphospholipid syndrome and one was protein S deficiency. There was an early recurrence in one patient and re-CDT was needed. The VS score deteriorated to 6.2±2.5 (post CDT) significantly (p<0.0001) from 26.2±6.3 (pre CDT). CDT for acute deep vein thrombosis was effective and its early outcome was acceptable.
		                        		
		                        		
		                        		
		                        	
10.The Role of Systemic Inflammatory Response Syndrome for Acute Arterial Occlusion of the Lower Limb.
Hisaki Umezawa ; Nanao Negishi ; Yoshiyuki Ishii ; Seiryuu Niino ; Hideaki Maeda ; Hideo Kohno ; Nobuaki Chiku ; Shinsuke Choh ; Yukiyasu Sezai
Japanese Journal of Cardiovascular Surgery 1998;27(1):1-5
		                        		
		                        			
		                        			Reperfusion injury occasionally occurred after revasculization of acute arterial occlusion (AAO). The most common reason of death is myonephropatic metabolic syndrome due to reperfusion injury. This paper focusses on the criterion of systemic inflammatory response syndrome (SIRS). From January 1987 to April 1996, we treated 89 patients (male 59/female 30) with lower limb AAO. The mean age was 68.5 (ranging from 16 to 94) years old. There were 59 cases of thrombosis, 25 of embolism, 2 trauma and 3 dissecting aneurysm of the aorta. These patients were divided into two groups according to whether or not they fulfilled the criterion of SIRS. Of these patients, 46 cases met the criterion of SIRS (SIRS group) but the other 43 did not (non-SIRS group). We compared the two groups. The mortality of the SIRS group (23.9%) was higher than the non-SIRS group (2.3%). The ischemic time of the SIRS group (83.1±113.3 hours) was longer than the non-SIRS group (37.5±38.2 hours). Complications of MNMS were more common in the SIRS group (15.3%) than in the non-SIRS group (2.3%). The ischemic area in the SIRS group was remarkably less than in the non-SIRS group. Conclusion: The criterion of SIRS as indicated by the measurement of interleukin 8 (IL-8) was a useful prognostic parameter for limb salvage rate and mortality of AAO patients.
		                        		
		                        		
		                        		
		                        	
            

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