81 results on '"Sera N"'
Search Results
2. Discordant patient–physician assessments of disease activity and its persistence adversely impact quality of life and work productivity in US Hispanics with rheumatoid arthritis
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Karpouzas, George A, Ramadan, Sera N, Cost, Chelsie E, Draper, Taylor L, Hernandez, Elizabeth, Strand, Vibeke, and Ormseth, Sarah R
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Pain Research ,Arthritis ,Clinical Research ,Autoimmune Disease ,Inflammatory and immune system ,Good Health and Well Being ,disease activity ,outcomes research ,patient rerspective ,rheumatoid arthritis ,Clinical Sciences - Abstract
ObjectiveThis study was designed to evaluate the determinants of patient and physician global assessments (PtGA and MDGA, respectively) of disease activity, their discordance and change over 2 years in Hispanics with rheumatoid arthritis (RA). We further examined the impact of discordance and its persistence on health-related quality of life (HRQOL) and work productivity on final visit.MethodsWe studied 536 Hispanics with established RA from a single centre. PtGA and MDGA were measured annually on 10 cm visual analogue scales and discordance was defined as absolute difference between them ≥3 cm. Associations between predictors and outcomes of interest were evaluated using multivariable regression and analysis of covariance for cross-sectional and longitudinal data, respectively.ResultsIndependent predictors of baseline PtGA were pain, fatigue, depression, general health perceptions and tender joint count. MDGA was predicted by swollen joint count, tender joint count, erythrocyte sedimentation rate, fatigue and depression. Both PtGA and MDGA improved over time (all p
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- 2017
3. Validity of mutagenic activity as an indicator of river water pollution
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Tsukatani, H., Tanaka, Y., Sera, N., Shimizu, N., Kitamori, S., and Inoue, N.
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- 2003
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4. Murine strain differences in 8-hydroxy-deoxyguanosine formation in hepatic DNA induced by oxidized lard and dietary oils
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Sadakane, K., Ichinose, T., Takano, H., Abe, M., Sera, N., Yanagisawa, R., Ochi, H., Fujioka, K., Lee, K.-G., and Shibamoto, T.
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- 2006
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5. Comparison of Clinicopathological Findings of Spitz Nevus in Pediatric and Adult Patients
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Tuğba Kevser Uzunçakmak, Sera Nur Yücesoy, Ayşe Mine Önenerk, Ayşenur Özdil, and Burhan Engin
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Pediatrics ,RJ1-570 - Abstract
Objective: The aim of this study is to evaluate the demographic characteristics of patients diagnosed with Spitz nevus and to investigate potential distinctions in clinicopathological findings of Spitz nevi in relation to age and location of the lesion. Materials and Methods: Clinical and histopathological findings of 32 patients who were diagnosed with Spitz nevus from our archives between 2010 and 2020 were obtained and evaluated retrospectively. Results: A total of 32 patients were included, of whom 19 (59.4%) were female and 15 (40.6%) were under the age of 18 years. Most of the lesions (14, 43.7%) were located on the upper extremity, followed by the lower extremity and the head and neck. The most common histological subtype was the compound variant. In the pediatric age group, the majority of the lesions were located on the upper extremity, and the most common histological subtypes were pigmented and compound variant. In adults, the lesions were chiefly located on the lower extremitiy and the most common histological subtype was the desmoplastic variant. Conclusion: In this study, it was found that the location of the lesions and histopathological subtypes of Spitz nevi may differ in children and adults. Further studies incorporating genetic data and involving larger cohorts of patients are needed in order to determine these differences between age groups more clearly. The small sample size is the main limitation of this study
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- 2024
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6. Fas/FasL mediated apoptosis of thyrocytes in Gravesʼ disease
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Sera, N., Kawakami, A., Nakashima, T., Nakamura, H., Imaizumi, M., Koji, T., Abe, Y., Usa, T., Tominaga, T., Ejima, E., Ashizawa, K., Yokoyama, N., Ishikawa, N., Ito, K., and Eguchi, K.
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- 2001
7. Preliminary results on organization on the court, physical and technical performance of Brazilian professional futsal players: comparison between friendly pre-season and official match
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Felipe Arruda Moura, Paulo Roberto Pereira Santiago, Vitor Luiz de Andrade, Sera N Dogramaci, Fabio Milioni, Ricardo Augusto Barbieri, Luiz Henrique Palucci Vieira, Guilherme M. Cesar, Universidade de São Paulo (USP), New South Wales, Universidade Estadual Paulista (Unesp), Universidade Estadual de Londrina, and University of Nebraska
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lcsh:Sports ,Activity profile ,Health (social science) ,Future studies ,Applied psychology ,030229 sport sciences ,General Medicine ,technique ,futsal ,03 medical and health sciences ,Technical performance ,lcsh:GV557-1198.995 ,0302 clinical medicine ,activity profile ,Operations management ,automatic tracking ,lcsh:Sports medicine ,Psychology ,lcsh:RC1200-1245 ,030217 neurology & neurosurgery - Abstract
Made available in DSpace on 2021-07-14T10:34:21Z (GMT). No. of bitstreams: 0 Previous issue date: 2016. Added 1 bitstream(s) on 2021-07-14T11:33:19Z : No. of bitstreams: 1 S1980-65742016000200080.pdf: 585222 bytes, checksum: bdf634b26e8bcf962788f533f3360743 (MD5) Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) The main aim of this study was to verify possible differences between a friendly pre-season match (FM) and an official in-season match (OM) regarding physical, technical, and organizational performances of a professional Brazilian futsal team. Ten professional futsal athletes participated in this study. The matches were monitored with video cameras (30 Hz) and athlete trajectories obtained with automatic tracking. The values obtained for distance covered per minute, percentage of distance covered at moderate intensity, team coverage area, spread, passes, possessions, ball touches and successful passes per minute were greater for the OM than FM. On the contrary, percentage of distance covered, standing and walking was greater for the FM than OM. We concluded that physical, technical, and tactical performances are different between a FM and an OM in futsal and also these parameters mutually influenced each other distinctly. Future studies should verify whether pre-season tournaments reproduce similar demands to a regular season official match. Universidade de São Paulo New South Wales, Institute os Sports Universidade Estadual Paulista Julio de Mesquita Filho Universidade Estadual de Londrina University of Nebraska, Lincoln, Athletic Department Universidade Estadual Paulista Julio de Mesquita Filho FAPESP: 2013/08302-6 CNPq: 114901/2013-9
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- 2016
8. Can biological motion research provide insight on how to reduce friendly fire incidents?
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Kylie A Steel, Sera N Dogramaci, David Baxter, Stephen Cobley, and Eathan Ellem
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media_common.quotation_subject ,Motion Perception ,Experimental and Cognitive Psychology ,050105 experimental psychology ,Motion (physics) ,03 medical and health sciences ,Accident Prevention ,0302 clinical medicine ,Arts and Humanities (miscellaneous) ,Human–computer interaction ,Perception ,Developmental and Educational Psychology ,Humans ,0501 psychology and cognitive sciences ,Motion perception ,Anecdotal evidence ,media_common ,05 social sciences ,030229 sport sciences ,Deception ,Military personnel ,Military Personnel ,Pattern Recognition, Visual ,Camouflage ,Psychology ,Social psychology ,Biological motion - Abstract
The ability to accurately detect, perceive, and recognize biological motion can be associated with a fundamental drive for survival, and it is a significant interest for perception researchers. This field examines various perceptual features of motion and has been assessed and applied in several real-world contexts (e.g., biometric, sport). Unexplored applications still exist however, including the military issue of friendly fire. There are many causes and processes leading to friendly fire and specific challenges that are associated with visual information extraction during engagement, such as brief glimpses, low acuity, camouflage, and uniform deception. Furthermore, visual information must often be processed under highly stressful (potentially threatening), time-constrained conditions that present a significant problem for soldiers. Biological motion research and anecdotal evidence from experienced combatants suggests that intentions, emotions, identities of human motion can be identified and discriminated, even when visual display is degraded or limited. Furthermore, research suggests that perceptual discriminatory capability of movement under visually constrained conditions is trainable. Therefore, given the limited military research linked to biological motion and friendly fire, an opportunity for cross-disciplinary investigations exists. The focus of this paper is twofold: first, to provide evidence for the possible link between biological motion factors and friendly fire, and second, to propose conceptual and methodological considerations and recommendations for perceptual-cognitive training within current military programs.
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- 2016
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9. SARS-CoV-2 Vaccine Effectiveness against Omicron Variant in Infection-Naive Population, Australia, 2022
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Lauren E. Bloomfield, Sera Ngeh, Gemma Cadby, Kate Hutcheon, and Paul V. Effler
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COVID-19 ,2019 novel coronavirus disease ,coronavirus disease ,severe acute respiratory syndrome coronavirus 2 ,SARS-CoV-2 ,viruses ,Medicine ,Infectious and parasitic diseases ,RC109-216 - Abstract
SARS-CoV-2 transmission in Western Australia, Australia, was negligible until a wave of Omicron variant infections emerged in February 2022, when >90% of adults had been vaccinated. This unique pandemic enabled assessment of SARS-CoV-2 vaccine effectiveness (VE) without potential interference from background immunity from prior infection. We matched 188,950 persons who had a positive PCR test result during February–May 2022 to negative controls by age, week of test, and other possible confounders. Overall, 3-dose VE was 42.0% against infection and 81.7% against hospitalization or death. A primary series of 2 viral-vectored vaccines followed by an mRNA booster provided significantly longer protection against infection >60 days after vaccination than a 3-dose series of mRNA vaccine. In a population free from non–vaccine-derived background immunity, vaccines against the ancestral spike protein were ≈80% effective for preventing serious outcomes from infection with the SARS-CoV-2 Omicron variant.
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- 2023
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10. Discordant patient-physician assessments of disease activity and its persistence adversely impact quality of life and work productivity in US Hispanics with rheumatoid arthritis
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Sarah R. Ormseth, Chelsie E Cost, Taylor L. Draper, E. Hernandez, Vibeke Strand, Sera N Ramadan, and George Karpouzas
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Persistence (psychology) ,rheumatoid arthritis ,medicine.medical_specialty ,Immunology ,Clinical Sciences ,Rheumatoid Arthritis ,Autoimmune Disease ,Disease activity ,outcomes research ,03 medical and health sciences ,0302 clinical medicine ,Rheumatology ,Quality of life ,Clinical Research ,medicine ,Immunology and Allergy ,030212 general & internal medicine ,Depression (differential diagnoses) ,030203 arthritis & rheumatology ,Work productivity ,medicine.diagnostic_test ,business.industry ,Arthritis ,Inflammatory and immune system ,Pain Research ,patient rerspective ,medicine.disease ,Good Health and Well Being ,Erythrocyte sedimentation rate ,Rheumatoid arthritis ,Physical therapy ,Outcomes research ,business ,disease activity - Abstract
Objective This study was designed to evaluate the determinants of patient and physician global assessments (PtGA and MDGA, respectively) of disease activity, their discordance and change over 2 years in Hispanics with rheumatoid arthritis (RA). We further examined the impact of discordance and its persistence on health-related quality of life (HRQOL) and work productivity on final visit. Methods We studied 536 Hispanics with established RA from a single centre. PtGA and MDGA were measured annually on 10 cm visual analogue scales and discordance was defined as absolute difference between them ≥3 cm. Associations between predictors and outcomes of interest were evaluated using multivariable regression and analysis of covariance for cross-sectional and longitudinal data, respectively. Results Independent predictors of baseline PtGA were pain, fatigue, depression, general health perceptions and tender joint count. MDGA was predicted by swollen joint count, tender joint count, erythrocyte sedimentation rate, fatigue and depression. Both PtGA and MDGA improved over time (all p
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- 2017
11. The Use of Simulation Training to Accelerate the Rate of Forward Ice Skating Skill Acquisition
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Kylie A Steel, Nathan J Washington, Eathan Ellem, and Sera N Dogramaci
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medicine.medical_specialty ,genetic structures ,Operations research ,education ,020101 civil engineering ,Physical Therapy, Sports Therapy and Rehabilitation ,Context (language use) ,02 engineering and technology ,lcsh:QM1-695 ,0201 civil engineering ,Dreyfus model of skill acquisition ,03 medical and health sciences ,Ice hockey ,0302 clinical medicine ,Resource (project management) ,Physical medicine and rehabilitation ,Physiology (medical) ,medicine ,Orthopedics and Sports Medicine ,Treadmill ,Protocol (science) ,biology ,Athletes ,lcsh:Human anatomy ,030229 sport sciences ,biology.organism_classification ,Sprint ,sense organs ,Psychology ,human activities - Abstract
Background: Australia’s interest and participation in ice hockey is increasing, however a lack of access to facilities means familiarity with this sport is limited, and so too is the facilitation of skill development within an ecologically valid context. Objective: While numerous methods may be employed to address this, one resource which remains relatively unexplored is the StrideDeck Treadmill, therefore the purpose of this study was to investigate the effectiveness of this equipment with specific reference to the biomechanical changes for skating ability. Methods: N = 16 male athletes (Mage = 15.0 ± 0.76 yrs) from a junior league competition participated in this intervention based study. n = 9 were assigned to the training intervention (StrideDeck) once a week, while the control group (n = 7) continued their normal training routines. Further, monthly sprint tests both on the StrideDeck and an on-ice protocol were conducted to track progress via kinematic analysis. Results: Data analysis revealed no significant overall effects for on-ice sprint skating performance after StrideDeck training; however there were significant kinematic differences between StrideDeck and ice conditions. Conclusions: Therefore while the StrideDeck may have merit in regard to physiological paramters, the results of this study do not support its use as a skill acquisition tool in regard to increasing skating ability. Keywords: Simulation training, skill acquisition, treadmill, ice skating, ice hockey skating, ice skating stride
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- 2016
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12. Parasite infection and sand coarseness increase sand crab (Emerita analoga) burrowing time
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Gita R. Kolluru, Sera N. Ramadan, Marc R. Zosky, Larisa K. Vredevoe, Zachary S. Green, and Matthew R. Kuzma
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Male ,Abiotic component ,Biotic component ,Behavior, Animal ,biology ,Ecology ,Emerita analoga ,fungi ,General Medicine ,Silicon Dioxide ,biology.organism_classification ,Burrow ,California ,Acanthocephala ,Host-Parasite Interactions ,Predation ,Behavioral Neuroscience ,parasitic diseases ,Animals ,Parasite hosting ,Female ,Animal Science and Zoology ,Anomura ,Swash ,Trophic level - Abstract
Parasites with indirect life cycles require trophic transmission from intermediate hosts to definitive (vertebrate) hosts. Transmission may be facilitated if parasite infection alters the behavior of intermediate hosts such that they are more vulnerable to predation. Vulnerability to predation may also be influenced by abiotic factors; however, rarely are the effects of parasites and abiotic factors examined simultaneously. The swash zone of sandy beaches is a particularly harsh environment. Sand crabs (Emerita analoga) burrow rapidly in the swash zone to avoid predators and dislodgment. We examined prevalence and abundance of the acanthocephalan parasite Profilicollis altmani in sand crabs, and investigated the synergistic effects of sand grain size (an important abiotic factor), parasite infection, body size and reproductive condition on burrowing speed in females, from three California sites. More heavily parasitized crabs burrowed more slowly, making them potentially more vulnerable to predation by marine bird definitive hosts. Ovigerous females harbored more parasites than non-ovigerous females, but burrowed more quickly. All crabs burrowed slowest in the coarsest sand, and burrowing times increased with repeated testing, suggesting that it is energetically costly. Abiotic and biotic factors influence burrowing, and behavioral variation across sites may reflect the response to natural variation in these factors.
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- 2011
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13. Pericytes and vascular smooth muscle cells in central nervous system arteriovenous malformations
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Sera Nakisli, Alfonso Lagares, Corinne M. Nielsen, and Henar Cuervo
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arteriovenous malformation ,central nervous system ,mural cell ,pericyte ,smooth muscle cell ,vascular malformations ,Physiology ,QP1-981 - Abstract
Previously considered passive support cells, mural cells—pericytes and vascular smooth muscle cells—have started to garner more attention in disease research, as more subclassifications, based on morphology, gene expression, and function, have been discovered. Central nervous system (CNS) arteriovenous malformations (AVMs) represent a neurovascular disorder in which mural cells have been shown to be affected, both in animal models and in human patients. To study consequences to mural cells in the context of AVMs, various animal models have been developed to mimic and predict human AVM pathologies. A key takeaway from recently published work is that AVMs and mural cells are heterogeneous in their molecular, cellular, and functional characteristics. In this review, we summarize the observed perturbations to mural cells in human CNS AVM samples and CNS AVM animal models, and we discuss various potential mechanisms relating mural cell pathologies to AVMs.
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- 2023
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14. A comparison of two different methods for time-motion analysis in team sports
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Sera N Dogramaci and L. Mark Watsford
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Motion analysis ,biology ,Athletes ,Movement (music) ,05 social sciences ,Applied psychology ,Physical Therapy, Sports Therapy and Rehabilitation ,Advertising ,030229 sport sciences ,biology.organism_classification ,Affect (psychology) ,050105 experimental psychology ,Match analysis ,03 medical and health sciences ,0302 clinical medicine ,0501 psychology and cognitive sciences ,Orthopedics and Sports Medicine ,Psychology - Abstract
Time-motion analysis has been extensively used to provide an insight into the movement patterns of athletes in team sports. However, few studies have indicated whether analysis involved breaks in play, or all the activities within the standard clock-time. Therefore, the purpose of this study was to differentiate whether differences existing between clock-time and match-time time-motion analysis had an affect on the results. Data was collected from the Australian National Futsal Team. Analysis was initially conducted against the actual playing clock-time of 40 min, then on a match-time of 70 min including all actions and breaks in play, excluding half-time and time-out intervals. When comparing match-time to clock-time data, there was a 16% greater total overall distance covered, a 6.9% increase in the time spent in low-intensity activities, and a change in activity every 4.00 s vs. 3.28 s, respectively. There was little change in the high-intensity activities from clock-time to match-time comparison. As c...
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- 2006
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15. Preliminary results on organization on the court, physical and technical performance of Brazilian professional futsal players: comparison between friendly pre-season and official match
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Vieira, Luiz Henrique Palucci, primary, Doğramaci, Sera N., additional, Barbieri, Ricardo Augusto, additional, Milioni, Fabio, additional, Moura, Felipe Arruda, additional, Andrade, Vitor Luiz de, additional, Cesar, Guilherme Manna, additional, and Santiago, Paulo Roberto Pereira, additional
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- 2016
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16. Evaluation of the level of serum Interleukins (IL-2, IL-4, IL-15 andIL-17) and its relationship with disease severity in patients with alopecia areata
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Özge Aşkın, Sera Nur Yücesoy, Erkam Coşkun, Burhan Engin, and Server Serdaroğlu
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Alopecia ,Alopecia areata ,Interleukins ,Dermatology ,RL1-803 - Abstract
Abstract Background: Alopecia areata (AA) is a hair disease that causes hair loss without scarring. The etiopathogenesis of AA has not been fully understood yet. Objective: To determine serum interleukin levels (IL-2, IL-4, IL-15, and IL-17) in patients diagnosed with alopecia areata and to investigate the relationship of IL levels with the duration and severity of alopecia areata and the response to tofacitinib therapy. Methods: Patients (≥16 years old) diagnosed with alopecia areata and healthy individuals as a control group was enrolled. Baseline serum interleukin levels of the patients and controls were measured. In the patient group receiving tofacitinib therapy, serum interleukin levels were measured again after 6 months. Disease severity for alopecia areata was assessed using the Severity of Alopecia Tool. Results: Sixty-one AA patients and 30 healthy individuals were included; they were comparable regarding age and sex. The mean disease duration for AA was 7 ± 6 years and the baseline mean Severity of Alopecia Tool score was 71 ± 30 (range, 20-100). Baseline IL-2, IL-4 and IL-15 levels were significantly higher in the patient group than those in the control group (p < 0.001 for each). No significant correlation was found between the baseline interleukin levels and either disease duration or disease severity (baseline Severity of Alopecia Tool score). Among the patients receiving tofacitinib (n = 22), all interleukin levels significantly decreased after treatment. However, no significant relationship between the change in interleukin levels and the change in the Severity of Alopecia Tool scores was observed after tofacitinib treatment. Study limitations: This is a monocentric study conducted in a single university hospital. Conclusion: High interleukin levels in alopecia areata patients and the significant decrease with treatment support the idea that interleukins have a role in pathogenesis. Nevertheless, no relationship could be demonstrated between IL levels and disease duration or severity.
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- 2021
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17. The reliability and validity of subjective notational analysis in comparison to global positioning system tracking to assess athlete movement patterns
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Mark L. Watsford, Aron J. Murphy, and Sera N Doğramac
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Adult ,Male ,Applied psychology ,Validity ,Physical Therapy, Sports Therapy and Rehabilitation ,Athletic Performance ,Young Adult ,Soccer ,Humans ,Orthopedics and Sports Medicine ,Reliability (statistics) ,Event (probability theory) ,business.industry ,Movement (music) ,Reproducibility of Results ,GPS, player tracking, video analysis, Msal ,General Medicine ,Duration (music) ,Athletes ,Time and Motion Studies ,Global Positioning System ,Geographic Information Systems ,Notational analysis ,Human Movement and Sports Science ,Tracking (education) ,Psychology ,business ,Sport Sciences - Abstract
Subjective notational analysis can be used to track players and analyse movement patterns during match-play of team sports such as futsal. The purpose of this study was to establish the validity and reliability of the Event Recorder for subjective notational analysis. A course was designed, replicating ten minutes of futsal match-play movement patterns, where ten participants undertook the course. The course allowed a comparison of data derived from subjective notational analysis, to the known distances of the course, and to GPS data. The study analysed six locomotor activity categories, focusing on total distance covered, total duration of activities and total frequency of activities. The values between the known measurements and the Event Recorder were similar, whereas the majority of significant differences were found between the Event Recorder and GPS values. The reliability of subjective notational analysis was established with all ten participants being analysed on two occasions, as well as analysing five random futsal players twice during match-play. Subjective notational analysis is a valid and reliable method of tracking player movements, and may be a preferred and more effective method than GPS, particularly for indoor sports such as futsal, and field sports where short distances and changes in direction are observed. © 2011 National Strength and Conditioning Association.
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- 2011
18. Using data linkage to monitor COVID-19 vaccination
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Tom Eitelhuber, Sera Ngeh, Lauren Bloomfield, Bhaval Chandaria, and Paul Effler
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immunisation ,data ,linkage ,data linkage ,vaccination ,covid-19 ,Demography. Population. Vital events ,HB848-3697 - Abstract
The COVID-19 Vaccination Linked Data Repository (CVLDR) was established in 2021 to assist with the implementation and management of the COVID-19 vaccination program in the State of Western Australia (WA). The CVLDR contains a number of datasets including the Australian Immunisation Register, hospital admissions, emergency department attendances, notifiable infectious disease, and laboratory data. Datasets in the CVLDR are linked using a probabilistic method at the WA Department of Health. Quality assurance mechanisms have been established to identify and mitigate potential errors in the linkage. Each of the datasets has varying degrees of data quality and completeness, however most are of high standard, underpinned by legislation. The linking of the datasets within the CVLDR has allowed for increased public health utility in the immunisation program including the areas of vaccine safety, effectiveness, and coverage.
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- 2022
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19. Time-motion analysis of international and national level futsal
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Sera N Dogramaci, Mark L. Watsford, and Aron J. Murphy
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Adult ,Male ,Adolescent ,sports ,Applied psychology ,Physical Therapy, Sports Therapy and Rehabilitation ,Football ,League ,Athletic Performance ,Competition (economics) ,Young Adult ,Soccer ,Humans ,Orthopedics and Sports Medicine ,National level ,Indoor soccer ,Duration (project management) ,biology ,Athletes ,Australia ,General Medicine ,biology.organism_classification ,Popularity ,Spain ,Time and Motion Studies ,sports.sport ,Psychology ,Sport Sciences ,Locomotion - Abstract
Futsal is the Fèdèration de Internationale Football Association's officially recognized fivea-side indoor soccer, which although increasing in popularity worldwide, lacks the Australian or other English language research necessary to enable the growth of the sport. The purpose of this study was to establish a comprehensive overview of the demands of futsal by a time-motion analysis on 8 Australian National Team players and 10 State League Team players over 4 futsal matches. The study analyzed 6 locomotor activity categories, focusing on total distance covered, total duration of activities, total frequency of activities, effort distance, and effort duration. The national team covered a 42% greater overall distance than the state league team. In terms of relative data normalized for match duration, only the standing duration value was significantly different between the teams. Furthermore, futsal players of elite and subelite level in Australia perform a change in activity every 8-9 seconds on the court, and the national team athletes attained a higher, yet nonsignificant, average match-play velocity. This may be because of the national futsal athletes participating in an extended game duration, potentially suggesting that higher levels of competition facilitate a higher intensity of match play and greater physiological demands on individual players. Apart from the differences in timing structure and overall metabolic work, there was no real difference between the levels of competition within the Australian futsal analysis, although at higher levels of competition, there may be a need for more recovery because of the elevated intensity of the match. When comparing the data with other countries, however, Australian futsal players produce less distance and duration than Spanish futsal players. © 2011 National Strength and Conditioning Association.
- Published
- 2010
20. Successful Control of an Onboard COVID-19 Outbreak Using the Cruise Ship as a Quarantine Facility, Western Australia, Australia
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Tudor A. Codreanu, Sera Ngeh, Abigail Trewin, and Paul K. Armstrong
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Western Australia ,disease outbreaks ,COVID-19 ,quarantine ,cruise ships ,coronavirus disease ,Medicine ,Infectious and parasitic diseases ,RC109-216 - Abstract
Onboard quarantining has been only partially effective to control outbreaks of coronavirus disease on cruise ships. We describe the successful use of the ship as a quarantine facility during the response to the outbreak on the MS Artania, which docked in Western Australia, Australia. The health-led 14-day quarantine regime was based on established principles of outbreak management and experiences of coronavirus disease outbreaks on cruise ships elsewhere. The attack rate in the crew was 3.3% (28/832) before quarantine commencement and 4.8% (21/441) during quarantine on board. No crew members became symptomatic after completion of quarantine. Infection surveillance involved telephone correspondence, face-to-face visits, and testing for severe acute respiratory syndrome coronavirus 2. No serious health issues were reported, no response staff became infected, and only 1 quarantine breach occurred among crew. Onboard quarantine could offer financial and operational advantages in outbreak response and provide reassurance to the shore-based wider community regarding risk for infection.
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- 2021
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21. Pathological pericyte expansion and impaired endothelial cell-pericyte communication in endothelial Rbpj deficient brain arteriovenous malformation
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Samantha Selhorst, Sera Nakisli, Shruthi Kandalai, Subhodip Adhicary, and Corinne M. Nielsen
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brain ,endothelial ,Notch ,pericyte ,Rbpj ,vascular ,Neurosciences. Biological psychiatry. Neuropsychiatry ,RC321-571 - Abstract
Pericytes, like vascular smooth muscle cells, are perivascular cells closely associated with blood vessels throughout the body. Pericytes are necessary for vascular development and homeostasis, with particularly critical roles in the brain, where they are involved in regulating cerebral blood flow and establishing the blood-brain barrier. A role for pericytes during neurovascular disease pathogenesis is less clear—while some studies associate decreased pericyte coverage with select neurovascular diseases, others suggest increased pericyte infiltration in response to hypoxia or traumatic brain injury. Here, we used an endothelial loss-of-function Recombination signal binding protein for immunoglobulin kappa J region (Rbpj)/Notch mediated mouse model of brain arteriovenous malformation (AVM) to investigate effects on pericytes during neurovascular disease pathogenesis. We tested the hypothesis that pericyte expansion, via morphological changes, and Platelet-derived growth factor B/Platelet-derived growth factor receptor β (Pdgf-B/Pdgfrβ)-dependent endothelial cell-pericyte communication are affected, during the pathogenesis of Rbpj mediated brain AVM in mice. Our data show that pericyte coverage of vascular endothelium expanded pathologically, to maintain coverage of vascular abnormalities in brain and retina, following endothelial deletion of Rbpj. In Rbpj-mutant brain, pericyte expansion was likely attributed to cytoplasmic process extension and not to increased pericyte proliferation. Despite expanding overall area of vessel coverage, pericytes from Rbpj-mutant brains showed decreased expression of Pdgfrβ, Neural (N)-cadherin, and cluster of differentiation (CD)146, as compared to controls, which likely affected Pdgf-B/Pdgfrβ-dependent communication and appositional associations between endothelial cells and pericytes in Rbpj-mutant brain microvessels. By contrast, and perhaps by compensatory mechanism, endothelial cells showed increased expression of N-cadherin. Our data identify cellular and molecular effects on brain pericytes, following endothelial deletion of Rbpj, and suggest pericytes as potential therapeutic targets for Rbpj/Notch related brain AVM.
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- 2022
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22. The use of an urticaria control test for the evaluation of omalizumab treatment response in patients diagnosed with chronic urticaria
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Burhan Engin, Sera Nur Yücesoy, Özge Aşkın, Zekayi Kutlubay, and Server Serdaroğlu
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chronic urticaria ,omalizumab ,urticaria control test ,Dermatology ,RL1-803 ,Diseases of the genitourinary system. Urology ,RC870-923 - Abstract
Background and Design: Urticaria is a very common skin disease which is characterized by itchy, erythematous and edematous plaques. Angioedema can also be seen in half of the cases in addition to skin findings. In most cases of chronic urticaria, the underlying factor is not known. Omalizumab, a recombinant human monoclonal immunoglobulin G (IgG) antibody against IgE, is a safe treatment option in chronic urticaria cases which are resistant to treatment with antihistamines. This study aimed to evaluate the treatment responses of chronic urticaria patients taking omalizumab treatment with an urticaria control test (UCT). Materials and Methods: One hundred fifty-four patients diagnosed with chronic urticaria taking omalizumab treatment attended our evaluation between January 1, 2017 and December 31, 2018. These patients were evaluated with an UCT every four weeks. Sixty-six patients who were evaluated with an UCT during the course of the following 12 weeks were statistically analyzed. Thirty-nine of the patients received a treatment shorter than 12 months (the first group), and the remaining 27 patients received treatment for longer than 12 months (the second group). The patients were analyzed according to the duration of their treatment. Results: The first, second, and third average UCT scores of the 3 sequential applications for the first group were 9.16; 11.57; and 12.73; respectively. There was a statistically significant difference in the UCT scores between the 3 successive applications in the first group (p
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- 2020
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23. New POMT2 mutations causing congenital muscular dystrophy: Identification of a founder mutation
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UCL - MD/NOPS - Département de neurologie et de psychiatrie, UCL - (SLuc) Service de neurologie, UCL - (SLuc) Service de neurologie pédiatrique, Yanagisawa, A., Boucher, C., Van den Bergh, Peter, Cuisset, J. -M., Viollet, L., Leturcq, F., Romero, N. B., Quijano-Roy, S., Fardeau, M., Sera, N., Guicheney, P., UCL - MD/NOPS - Département de neurologie et de psychiatrie, UCL - (SLuc) Service de neurologie, UCL - (SLuc) Service de neurologie pédiatrique, Yanagisawa, A., Boucher, C., Van den Bergh, Peter, Cuisset, J. -M., Viollet, L., Leturcq, F., Romero, N. B., Quijano-Roy, S., Fardeau, M., Sera, N., and Guicheney, P.
- Abstract
Background: Dystroglycanopathies are a group of congenital muscular dystrophies (CMDs) with autosomal recessive inheritance, often associated with CNS and ocular involvement. They are characterized by the abnormal glycosylation of alpha-dystroglycan, and caused by mutations in at least six genes encoding enzymes: FKTN, POMGNT1, POMT1, POMT2, FKRP, and LARGE. POMT2 mutations have recently been identified in Walker-Warburg syndrome and in a milder muscle-eye-brain disease-like form. Methods: We studied mentally retarded patients with CMD, analyzed POMT2 by sequencing the coding regions, and also performed a haplotype analysis in all patients and their family members carrying the new POMT2 mutation. Results: We report three novel POMT2 mutations. One of these, p.Tyr666Cys, was homozygous in two unrelated patients and in a compound heterozygous state in others. All patients showed severe diffuse muscle weakness, microcephaly, severe mental retardation, and marked lordoscoliosis with hyperextencled head. Elevated CK levels, cerebral cortical atrophy, and cerebellar vermis hypoplasia were constant findings. Mild cardiac abnormalities, focal white matter abnormalities, or partial corpus callosum hypoplasia were detected in single cases. Eye involvement was absent or mild. By genotype analysis, we defined a distinct 170kb haplotype encompassing POMT2 and shared by all the subjects harboring the mutation p.Tyr666Cys. Conclusions: Our results broaden the clinical spectrum associated with POMT2 mutations, which should be considered in patients with CMD associated with microcephaly, and severe mental retardation with or without ocular involvement.
- Published
- 2007
24. Activity Profile Differences Between Sub-elite Futsal Teams.
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DOĞRAMACı, SERA N., WATSFORD, MARK L., and MURPHY, ARON J.
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SPORTS tournaments ,INDOOR soccer ,SOCCER teams ,SOCCER players ,SOCCER techniques - Abstract
Whilst there are a range of studies examining the differences in match demands between levels of competition, there is an absence of the analysis these differences between teams within the same level of competition. The study used notational analysis to identify performance indicators that differentiated between sub-elite futsal teams from Brazil, Spain and Australia during regular season matches. Based on world rankings, Spanish and Brazilian futsal was deemed to be superior to Australian futsal. The Australian players spent a significantly greater time engaged in high intensity activity than the Spanish players (sprinting: 0.36% v. 0.06%, p<0.05); running: 5.89% v. 3.33%). The Brazilian team displayed the greatest possession of the ball (40.0 ± 10.4%) when compared to the Spanish (23.5 ± 2.73%) and Australian teams (30.9 ± 2.54%) (p<0.01). Additionally, the Brazilian and Spanish teams made a greater number of successful passes per minute of match-play than the Australian team (10.7 ± 1.06 v. 8.68 ± 0.81 v. 5.31 ± 0.60, respectively, p<0.01). These results generally suggest that lower high intensity activity output and superior ball possession and passing accuracy appear to be critical determinants in discriminating between successful and unsuccessful match performance. Accordingly, training to improve technical and decision making skills, specifically related to maintaining ball possession and improving passing accuracy, will likely assist lower performing teams. [ABSTRACT FROM AUTHOR]
- Published
- 2015
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25. Micronucleus induction and chromosomal aberration of 1- and 3-nitroazabenzo[a]pyrene and their N-oxides
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Sera, N., primary
- Published
- 2001
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26. Mutagenic and carcinogenic significance and the possible induction of lung cancer by nitro aromatic hydrocarbons in particulate pollutants.
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Tokiwa, H, primary, Sera, N, additional, Nakashima, A, additional, Nakashima, K, additional, Nakanishi, Y, additional, and Shigematu, N, additional
- Published
- 1994
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27. Incidence and prognostic value of early repolarization pattern in the 12-lead electrocardiogram.
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Haruta D, Matsuo K, Tsuneto A, Ichimaru S, Hida A, Sera N, Imaizumi M, Nakashima E, Maemura K, and Akahoshi M
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- 2011
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28. Mutagenicity of the fullerene C60-generated singlet oxygen dependent formation of lipid peroxides.
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Sera, N, Tokiwa, H, and Miyata, N
- Abstract
Fullerene C60 dissolved in polyvinylpyrrolidone was mutagenic for Salmonella strains TA102, TA104 and YG3003 in the presence of rat liver microsomes when it was irradiated by visible light. The mutagenicity was elevated in strain YG3003, a repair enzyme-deficient mutant of TA102. The mutation was reduced in the presence of beta-carotene and parabromophenacyl bromide, a scavenger and an inhibitor, respectively, of phospholipase. The results suggest that singlet oxygen was generated by irradiating the C60 by visible light and that the mutagenicity was due to oxidized phospholipids in rat liver microsomes. Of the phospholipids in rat liver microsomes, the linoleate fraction isolated by high performance liquid chromatography was a major component, and played an important role in mutagenicity. Methyl linoleate, which was prepared for gas chromatographic analysis, was readily oxidized to hydroperoxymethyl linoleate, and associated with both 10- and 12-hydroxyl derivatives with a double bond in chemical structure by singlet oxygen: radicals to the hydroxyl function were probably generated. Because of the instability of the hydroxymethyl linoleate radicals, guanine residues generated radicals. The results of ESR spectrum analysis suggested generation of radicals at the guanine base but not thymine, cytosine and adenine bases as estimated with the g value of 2.0150. On the other hand, the singlet oxygen-generating C60 formed 8-hydroxydeoxyguanosine (8-OH-dG) upon treatment with 2' deoxyguanosine and microsomes or linoleate. The formation of 8-OH-dG was highly elevated in the presence of microsomes and linoleate. The level of 8-OH-dG formed with and without the microsome fraction was 47 and 9.6 units, respectively, per 10(4) deoxyguanosine. It was considered that the mechanism is indirect action of singlet oxygen due to lipid peroxidation of linoleate that causes oxidative DNA damage.
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- 1996
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29. Development of a predictive scoring system for vitamin D deficiency 'Vitamin D Deficiency Predicting Scoring (ViDDPreS)' based on the vitamin D status in young Japanese women: a nationwide cross-sectional study.
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Kuwabara A, Nakatani E, Nakajima H, Sasaki S, Kohno K, Uenishi K, Takenaka M, Takahashi K, Maeta A, Sera N, Kaimoto K, Iwamoto M, Kawate H, Yoshida M, Tanaka K, and Tsugawa N
- Subjects
- Humans, Female, Cross-Sectional Studies, Japan epidemiology, Adult, Young Adult, Risk Factors, Adolescent, Seasons, Dietary Supplements, Nutritional Status, Sunlight, Feeding Behavior, Logistic Models, Body Mass Index, East Asian People, Vitamin D Deficiency epidemiology, Vitamin D Deficiency blood, Vitamin D blood, Vitamin D analogs & derivatives
- Abstract
Objective: Vitamin D deficiency (VDD) is common among young women and causes various health problems, including those that occur during pregnancy and childbirth. Thus, we investigated the risk factors for VDD in young Japanese women and developed a simple risk scoring system called Vitamin D Deficiency Predicting Scoring (ViDDPreS)., Design: A cross-sectional study, using the following factors for multivariate logistic regression analysis to create the ViDDPreS score: residential area, season, cumulative ambient ultraviolet-B irradiation, BMI, vitamin D supplement use, sun exposure habits, frequency of habitual food intake and eating habits. The subjects were randomly divided into development and test sets for analysis. Serum 25-hydroxivitamin D concentration of less than 20 ng/ml was defined as VDD., Setting: Four regions (Hokkaido/Tohoku, Kanto, Chubu/Kinki/Shikoku and Kyushu/Okinawa) in Japan., Participants: Five hundred and eighty-three healthy women aged 18-40 years., Results: In the development set, the VDD group (68·4 %) had higher proportions of the following variables than the non-VDD group: residential area outside the Kanto region; blood samples obtained in winter; low BMI (<18·5 kg/m
2 ); vitamin D supplement non-users; short time regularly spent outside on weekdays; intake of fish, vitamin D-abundant fish, dried fish and redfish less than once a week. VDD risk was classified as low, medium or high according to the ViDDPreS scores including these contributing factors, with a test set C-index of 0·671., Conclusion: We identified the risk factors for VDD in young Japanese women and developed a simple risk scoring system that enables us to assess VDD risk and aid in the development of appropriate prevention and treatment strategies for this population.- Published
- 2024
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30. Before or Concomitant Drinking Greenleaf Juice with Rice Reduces Postprandial Blood Glucose Levels in Healthy Young Women.
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Sera N, Taguchi F, Hanamura I, and Hongo R
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- Humans, Female, Young Adult, Adult, Hyperglycemia prevention & control, Hyperglycemia blood, Healthy Volunteers, Plant Leaves chemistry, Oryza chemistry, Blood Glucose metabolism, Postprandial Period, Fruit and Vegetable Juices
- Abstract
The purpose of this study was to examine how green leaf juice drinking affect the postprandial blood glucose. Postprandial hyperglycemia causes vascular endothelial damage and chronic inflammation, promoting atherosclerosis, regardless of the presence of diabetes. Some ingredients in greenleaf juice have been reported to suppress blood glucose levels; however, the effect of greenleaf juice on reducing blood glucose levels in healthy individuals is unclear. We observed changes in postprandial blood glucose levels in 13 healthy young women who drank greenleaf juice before or concomitantly with rice. Compared to water, greenleaf juice consumption reduced blood glucose levels at 90 and 120 min after rice consumption, with no difference regardless of the time of greenleaf juice consumption. Greenleaf juice may be one of the most convenient and cost-effective methods for reducing postprandial blood glucose in healthy people.
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- 2024
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31. Development of a predictive model for vitamin D deficiency based on the vitamin D status in young Japanese women: A study protocol.
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Kuwabara A, Nakatani E, Tsugawa N, Nakajima H, Sasaki S, Kohno K, Uenishi K, Takenaka M, Takahashi K, Maeta A, Sera N, Kaimoto K, Iwamoto M, Kawate H, Yoshida M, and Tanaka K
- Subjects
- Cross-Sectional Studies, Female, Humans, Japan epidemiology, Pregnancy, Vitamin D, Vitamins, Vitamin D Deficiency
- Abstract
Background: Vitamin D deficiency (VDD) is associated with an increased risk for lifestyle-related diseases. In Japan, VDD is quite prevalent in all age groups, with its high risk in young women. Furthermore, its association during pregnancy with gestational hypertension and low birth weight has also been reported. VDD can be diagnosed by serum 25-hydroxyvitamin D [25(OH)D] levels, which, however, is not suited for screening. Therefore, we will create a predictive model for serum 25(OH)D concentration and prevalence of VDD based on such data as region, sun exposure habit, and vitamin D intake in young women., Methods: From 2020 to 2022, we conduct a cross-sectional study of 600 young women in four regions of Japan, identify the indices associated with serum 25(OH)D concentrations such as sun exposure habits, habitual vitamin D intake, ultraviolet-B irradiation, seasons (summer and winter) and latitude, and construct prediction models for serum 25(OH)D concentrations and VDD risk. This study has been registered with UMIN-CTR (ID: UMIN000041527)., Results: One hundred and fifteen subjects have been collected from 6 institutions in winter as of May 2021. When data from more than 200 subjects have become available, we will conduct the interim analysis, summarize the data by region and facility, review the inclusion criteria for analysis, and check for missing values and outliers. Prediction models for serum 25(OH)D concentration and VDD will be determined in the final analysis when all cases have been collected., Conclusions: A screening tool for VDD risk to be developed in our study based on the predictive model would help the public and medical professionals prevent lifestyle-related diseases through improving VDD. Additionally, the results may serve as the scientific basis for determining the appropriate vitamin D intake and sun exposure standards., Competing Interests: The authors have declared that no competing interests exist.
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- 2022
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32. Transmission of extended-spectrum cephalosporin-resistant Salmonella harboring a bla CMY-2 -carrying IncA/C 2 plasmid chromosomally integrated by ISEcp1 or IS26 in layer breeding chains in Japan.
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Shigemura H, Maeda T, Nakayama S, Ohishi A, Carle Y, Ookuma E, Etoh Y, Hirai S, Matsui M, Kimura H, Sekizuka T, Kuroda M, Sera N, Inoshima Y, and Murakami K
- Subjects
- Animals, Anti-Bacterial Agents pharmacology, Chickens, Drug Resistance, Multiple, Bacterial genetics, Female, Japan, Plasmids genetics, Salmonella genetics, beta-Lactamases genetics, Cephalosporins pharmacology, Salmonella enterica genetics
- Abstract
Dissemination of extended-spectrum cephalosporin (ESC)-resistant Salmonella is a public health concern in the egg production industry. ESC-resistant Salmonella often acquires the bla gene via insertion sequences (ISs). Therefore, this study aimed to assess antimicrobial resistance in Salmonella from Japanese layer breeding chains and egg processing chains, and determine the genetic profiles of IS-like elements in ESC-resistant Salmonella. Antimicrobial susceptibility testing was performed on 224 isolates from 49 facilities involving layer breeder farms, hatcheries, pullet-rearing farms, and layer farms in breeding chains along with egg processing chains. ESC-resistant Salmonella strains were whole-genome sequenced. Among them, 40 (17.9%) were resistant to at least streptomycin, tetracycline, ampicillin, chloramphenicol, cefpodoxime, nalidixic acid, ciprofloxacin, and/or kanamycin despite lacking resistance to azithromycin and meropenem. Moreover, 15 were ESC-resistant Salmonella harboring bla
CMY-2 (Salmonella enterica serovar Ohio, n=12; S. Braenderup, n=1; untypeable with O7:b:-, n=1) and blaCTX-M-14 (S. Cerro, n=1). IncA/C2 plasmids containing ISEcp1, IS26, and multiple antimicrobial resistance genes (including blaCMY-2 ) were identified in S. Ohio isolates from pullet-rearing and layer farms belonging to the same company. Chromosomal integration of partial or whole IncA/C2 plasmids was seen with two S. Ohio isolates via ISEcp1 or IS26, respectively. Antimicrobial resistance genes such as blaCMY-2 might be transmitted among the upper and the lower levels of layer breeding chains via the replicon type IncA/C2 plasmids containing ISEcp1 and IS26.- Published
- 2021
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33. Characteristics of patients who developed glucose intolerance in the early period after partial pancreatectomy.
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Sera N, Nakamura T, Horie I, Higashi R, Tominaga R, Yamamoto H, Nozaki A, Natsuda S, Takashima H, Kamada A, Abiru N, Nagayasu T, Eguchi S, and Kawakami A
- Abstract
Background: New-onset diabetes mellitus (DM) often develops after partial pancreatectomy. Little is known regarding how soon patients develop glucose intolerance after partial pancreatectomy. We investigated the incidence of and factors contributing to the development of glucose intolerance during hospitalization after partial pancreatectomy., Patients and Methods: We retrospectively analyzed the cases of 38 patients with normal glucose tolerance pre-surgery who underwent a partial pancreatectomy (pancreaticoduodenectomy, n = 23; distal pancreatectomy, n = 15). The patients' glucose tolerance and insulin secretory/sensitivity values were determined by a normal meal tolerance test (NMTT) within 2 months post-surgery during their hospitalization., Results: The post-surgery NMTT values revealed that 11 (28.9%) patients developed new-onset impaired glucose tolerance (the IGT group); the other 27 (71.1%) patients maintained normal glucose tolerance (the NGT group). The pre-operative hemoglobin A1c (HbA1c) levels were significantly higher in the IGT group (5.84%) versus the NGT group (5.58%, p = 0.034). There were no significant between-group differences in age, sex ratio, body mass index, the ratio of operative procedure (either pancreaticoduodenectomy or distal pancreatectomy), or post-operative insulin secretory values including the fasting/postprandial C-peptide index. The IGT group showed significantly higher insulin resistance assessed by the homeostasis model assessment of insulin resistance (HOMA-IR) versus the NGT group (1.52 ± 0.67 vs. 0.65 ± 0.42, p < 0.001)., Conclusion: After undergoing a partial pancreatectomy, approximately 30% of the patients developed glucose intolerance during the hospitalized period. Our findings indicate that pre-operative HbA1c and post-operative HOMA-IR values can be associated with developing glucose intolerance just after partial pancreatectomy., Competing Interests: Conflicts of interestAll authors declare no conflict of interest., (© The Japan Diabetes Society 2020.)
- Published
- 2020
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34. Association of Protein and Endotoxin in Outdoor Air with Emergency Department Visits for Children and Adults with Asthma in Fukuoka, Japan.
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Ishida T, Khan MS, Kodama H, Uejima Y, Kawase Y, Matsumoto T, Yamamura Y, Sera N, Gotou T, Hirakawa M, Yano Y, Shima M, Yamagishi N, Wakabayashi K, and Watanabe T
- Subjects
- Adolescent, Adult, Age Factors, Air Pollutants analysis, Air Pollution adverse effects, Air Pollution analysis, Asthma diagnosis, Asthma etiology, Child, Child, Preschool, Emergency Service, Hospital statistics & numerical data, Endotoxins analysis, Environmental Monitoring statistics & numerical data, Female, Humans, Infant, Infant, Newborn, Japan epidemiology, Male, Middle Aged, Particle Size, Particulate Matter adverse effects, Particulate Matter analysis, Proteins analysis, Risk Factors, Seasons, Symptom Flare Up, Young Adult, Air Pollutants adverse effects, Asthma epidemiology, Endotoxins adverse effects, Environmental Exposure adverse effects, Proteins adverse effects
- Abstract
We examined the association of biological components in airborne particles, i.e., proteins and endotoxins, in outdoor air with asthma exacerbation in the Fukuoka metropolitan area, Fukuoka, Japan. Data on emergency department (ED) visits for asthma in children (age, 0-14 years) and adults (age, 15-64 years) were collected at a medical center from December 2014 to November 2015. One hundred eighty-one children and 143 adults visited the ED for asthma, and the weekly number of ED visits in children increased in autumn, i.e., September (second week) to November (first week). Fine (aerodynamic diameter ≤2.5 µm) and coarse (≥2.5 µm) particles were collected for 3 or 4 weeks per month, and protein and endotoxin concentrations were analyzed. Protein was largely prevalent in fine particles (0.34-7.33 µg/m
3 ), and concentrations were high in April, May, June, and October. In contrast, endotoxin was mainly included in coarse particles (0.0010-0.0246 EU/m3 ), and concentrations were high in September (third week), October (first, second, and fourth weeks), February (fourth week), and July (first week). The results of a Poisson regression analysis indicated that endotoxin (in fine and coarse particles alike) was a significant factor for ED visits related to asthma in children, even after adjusting for meteorological factors, i.e., temperature, relative humidity, and wind speed. However, there was no association between environmental factors and ED visits for asthma in adults. These results suggest that endotoxin in outdoor air is significantly associated with an increased risk of asthma exacerbation in children.- Published
- 2020
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35. Non-biogroup 1 or 2 Strains of the Emerging Zoonotic Pathogen Escherichia albertii , Their Proposed Assignment to Biogroup 3, and Their Commonly Detected Characteristics.
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Murakami K, Maeda-Mitani E, Kimura H, Honda M, Ikeda T, Sugitani W, Konno T, Kawano K, Etoh Y, Sera N, Mizukoshi F, Saitoh T, Kawamura Y, Ishioka T, Ohnishi M, Oishi K, and Fujimoto S
- Abstract
Escherichia albertii , a zoonotic enteropathogen, is responsible for outbreaks of disease in humans. Identifying strains of E. albertii by phenotypic characterization tests is difficult because of its poorly defined properties. Screening its phenotypic characteristics is, nevertheless, a necessary prerequisite for further genetic analysis of its properties, and species-specific polymerase chain reaction (PCR) analysis can be used to type the pathogen. While two E. albertii biogroups (1 and 2) have been described, strains with characteristics divergent from both biogroups have been reported worldwide. The aim of the present study was to evaluate the characteristics of non-biogroup 1 or 2 strains, and discern the characteristics common to all of the E. albertii strains from this study. Altogether, 107/414 field isolates were selected for examination based on pulsed-field gel electrophoresis analysis. The 107 strains were isolated from 92 sources, including humans and pigeon feces, other wild birds, and retail chicken livers. All strains were then examined using various culture-based, biochemical (API 50CHE tests, API Zym test, and others) and molecular (virulence gene screening, multi-locus sequence analysis) testing methods. Our results revealed that all field strains ( n = 107) showed non-biogroup 1 or 2 characteristics, with multiple sequence differences. Variations in indole production and the lysine decarboxylase activity profiles among the isolates made identification of E. albertii very difficult. Therefore, we propose that non-biogroup 1 or 2 of E. albertii should be assigned to biogroup 3 to make screening of them easier in public health and clinical laboratory settings. Clearly, having group criteria for indole-negative/lysine-positive, indole-positive/lysine-negative, and indole-positive/lysine-positive E. albertii biogroups 1, 2, and 3 strains, respectively, should provide for more accurate identification of E. albertii isolates. Based on our findings, we recommend that isolates displaying phenotype mobility-negativity (sulfide-indole-motility medium, 37°C), hydrogen sulfide production-negativity (triple sugar iron medium), acid production-negativity from xylose, negative β-glucuronidase activity properties, and showing indole production and lysine decarboxylase activity profiles in accordance with one of the three biogroups, should be further assessed using an E. albertii -specific PCR assay.
- Published
- 2019
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36. Simultaneous oral administration of Salmonella Infantis and S. Typhimurium in chicks.
- Author
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Murakami K, Maeda-Mitani E, Onozuka D, Noda T, Sera N, Kimura H, Fujimoto S, and Murakami S
- Abstract
Background: To confirm the hypothesis that Salmonella enterica subspecies enterica serovar ( S. ) Infantis has higher basic reproductive rates in chicks compared with other Salmonella serovars, 1-day-old specific-pathogen-free chicks ( n = 8) were challenged simultaneously with S. Infantis and S. Typhimurium per os . Challenged chicks (Group A) were then housed with non-infected chicks (Group B, n = 4) for 6 days (from 2 to 8 days of age). Group B birds were then housed with other non-infected birds (Group C, n = 4), which were then transferred to cages containing a further group of untreated chicks (Group D, n = 2). A control group consisting of four non-infected chicks was used for comparison. All chickens were humanely sacrificed at 18 days of age, and Salmonella from bowel and liver samples were enumerated., Results: Both serovars were isolated from all groups except the control group. S. Typhimurium was isolated at a greater frequency than S. Infantis from the bowel samples of chicks from Groups B, C and D, while no differences in colonisation rates were observed between the two serovars in liver samples from Groups B, C and D. S. Typhimurium, but not S. Infantis, was immunohistochemically detected in the lamina propria of the cecum and rectum in five birds of Group A. Despite the competitive administration, neither of the two serovars completely excluded the other, and no differences were observed in basic reproductive rates between the two serovars., Conclusions: These findings, together with data from previous studies, suggest that the initial quantitative domination of S. Infantis in chicken flocks may explain why this serovar is predominant in broiler chickens.
- Published
- 2017
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37. Prognostic Significance of Premature Ventricular Contractions without Obvious Heart Diseases Determined by Standard 12-Lead Electrocardiography Considering their Morphology.
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Haruta D, Akahoshi M, Hida A, Sera N, Imaizumi M, Ichimaru S, Nakashima E, Takahashi I, Ohishi W, Fukae S, and Maemura K
- Subjects
- Aged, Female, Humans, Japan, Male, Middle Aged, Nuclear Weapons, Prognosis, Risk Factors, Survivors statistics & numerical data, Electrocardiography methods, Ventricular Premature Complexes diagnosis
- Abstract
Background: Although ventricular premature contraction (VPC) commonly arises in subjects with and without heart diseases, the prognosis of VPC has remained controversial and the effect of their morphology on mortality has not been fully determined in subjects without obvious heart diseases. The objective of this study was to assess the morphologic effect of VPC on mortality., Methods: Japanese atomic bomb survivors (n = 6685) underwent baseline health examinations and standard 12-lead electrocardiogram (ECG) between January 1990 and December 1991. Of these, we extracted data from 5,685 (67.1% women) subjects who had neither heart diseases nor electrocardiographic abnormalities at baseline. Among them, we identified 131 VPC cases using standard 12-lead ECG and classified them into left bundle branch block (LBBB) type (n = 74), right bundle branch block (RBBB) type (n = 21), and undetermined type (n = 36) according to their morphology. These subjects were followed up until December 2008; we compared all-cause, cardiac and coronary heart disease (CHD) mortality rates using multivariate Cox regression analysis between those with and without VPC., Results: No VPCs were associated with all-cause and cardiac mortality, but the LBBB type was significantly associated with CHD mortality (hazard ratio, 2.73; 95% confidence interval, 1.11-6.73) after controlling for age, sex, smoking status, alcohol consumption, and underlying diseases., Conclusions: Among Japanese atomic bomb survivors without obvious heart diseases, LBBB-type VPC was associated with increased CHD mortality. Larger studies are needed to confirm the effect of morphology as it might help to predict the risk., (© 2015 Wiley Periodicals, Inc.)
- Published
- 2016
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38. Spatial correlativity of atmospheric particulate components simultaneously collected in Japan.
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Funasaka K, Asakawa D, Oku Y, Kishikawa N, Deguchi Y, Sera N, Seiyama T, Horasaki K, Arashidani K, Toriba A, Hayakawa K, Watanabe M, Kataoka H, Yamaguchi T, Ikemori F, Inaba Y, Tonokura K, Akiyama M, Kokunai O, Coulibaly S, Hasei T, and Watanabe T
- Subjects
- Atmosphere chemistry, Carbon analysis, Cities, Hazardous Substances analysis, Japan, Air Pollutants analysis, Environmental Monitoring, Particulate Matter analysis
- Abstract
The simultaneous sampling of total suspended particles was performed at 14 sites in Japan during July 2008-June 2009. The spatial correlativity of each particulate composition toward Osaka was obtained for nine selected sites to overview the chemical composition and geographical distribution of particulate components across a wide range of areas nationwide. The spatial correlatives of atmospheric particulate components were extended to an even wider range of areas up to 950 km distance (meso-alpha scale region, >200 km) for a far-reaching distance analysis unique in the literature. Overall, the spatial correlations of ionic species and both organic and elemental carbons were significant, suggesting their shared advections, including their long-range transport from East Asia. Although sulfate ions are widely dispersed across Japan, such is not necessarily correlated with organic and elemental carbon, possibly indicating that the sulfate emission source, including long-range transport, differs from that of carbonaceous particulates. By contrast, the characteristics of spatial correlatives of metallic constituents vary; for example, particulate Pb and Cd show a significantly wide range of spatial correlatives to Osaka, while Mn-though limited to cities neighboring Osaka-shows significant spatial correlations. Other metallic constituents showed no significant spatial correlatives, indicating the effects of local pollutants. Moreover, the extent of the spatial dispersion of the particulate components and the relationships among chemical components were analyzed via factor analysis to highlight the effects of long-range inflow and local original emissions. In this treatment, 13 particulate components among the 19 measured were implicated in long-range transport.
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- 2016
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39. Typing Method for the QUB11a Locus of Mycobacterium tuberculosis : IS 6110 Insertions and Tandem Repeat Analysis.
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Maeda-Mitani E, Murakami K, Oishi A, Etoh Y, Sera N, and Fujimoto S
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- Humans, Mutagenesis, Insertional, Mycobacterium tuberculosis pathogenicity, Polymorphism, Genetic, Tuberculosis microbiology, Genes, Bacterial genetics, Genetic Loci genetics, Minisatellite Repeats genetics, Mycobacterium tuberculosis genetics, Tuberculosis genetics
- Abstract
QUB11a is used as a locus for variable number of tandem repeats (VNTR) analysis of Mycobacterium tuberculosis Beijing lineage. However, amplification of QUB11a occasionally produces large fragments (>1,400 bp) that are not easily measured by capillary electrophoresis because of a lack of the typical stutter peak patterns that are used for counting repeat numbers. IS 6110 insertion may complicate VNTR analysis of large QUB11a fragments in M. tuberculosis . We established a method for determining both tandem repeat numbers and IS 6110 insertion in the QUB11a locus of M. tuberculosis using capillary electrophoresis analysis and Bsm BI digestion. All 29 large QUB11a fragments (>1,200 bp) investigated contained IS 6110 insertions and varied in the number of repeats (18 patterns) and location of IS 6110 insertions. This method allows VNTR analysis with high discrimination.
- Published
- 2016
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40. Detection of Escherichia albertii from chicken meat and giblets.
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Maeda E, Murakami K, Sera N, Ito K, and Fujimoto S
- Subjects
- Animals, Anti-Bacterial Agents pharmacology, Bacterial Typing Techniques, Chickens microbiology, Escherichia drug effects, Escherichia genetics, Microbial Sensitivity Tests, Multilocus Sequence Typing, Phylogeny, Escherichia isolation & purification, Meat microbiology
- Abstract
Escherichia albertii occasionally causes food-borne outbreaks of gastroenteritis in humans; however, little is known about the vehicle of transmission. To screen retail chicken products for the presence of E. albertii, 104 retail chicken products were investigated. Portions of enrichment cultures that were PCR-positive for E. albertii (n=3) were sub-cultured on agar medium. Only 2 strains obtained from 2 chicken giblet samples were identified as E. albertii by multi locus sequence typing. Antimicrobial susceptibility testing showed that 1 strain was resistant to streptomycin and sulfisoxazole. Both strains harbored the virulence genes cdt and eae. This study is the first description of E. albertii isolation from retail food, suggesting that chicken products are a potential vehicle of E. albertii transmission.
- Published
- 2015
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41. Environmental surveillance of poliovirus in sewage water around the introduction period for inactivated polio vaccine in Japan.
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Nakamura T, Hamasaki M, Yoshitomi H, Ishibashi T, Yoshiyama C, Maeda E, Sera N, and Yoshida H
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- Capsid Proteins genetics, Environmental Monitoring, Genetic Variation, Genotype, Japan, Molecular Sequence Data, Point Mutation, Poliovirus Vaccine, Inactivated administration & dosage, Sequence Analysis, DNA, Vaccination methods, Vaccination statistics & numerical data, Poliovirus isolation & purification, Sewage virology
- Abstract
Environmental virus surveillance was conducted at two independent sewage plants from urban and rural areas in the northern prefecture of the Kyushu district, Japan, to trace polioviruses (PVs) within communities. Consequently, 83 PVs were isolated over a 34-month period from April 2010 to January 2013. The frequency of PV isolation at the urban plant was 1.5 times higher than that at the rural plant. Molecular sequence analysis of the viral VP1 gene identified all three serotypes among the PV isolates, with the most prevalent serotype being type 2 (46%). Nearly all poliovirus isolates exhibited more than one nucleotide mutation from the Sabin vaccine strains. During this study, inactivated poliovirus vaccine (IPV) was introduced for routine immunization on 1 September 2012, replacing the live oral poliovirus vaccine (OPV). Interestingly, the frequency of PV isolation from sewage waters declined before OPV cessation at both sites. Our study highlights the importance of environmental surveillance for the detection of the excretion of PVs from an OPV-immunized population in a highly sensitive manner, during the OPV-to-IPV transition period., (Copyright © 2015, American Society for Microbiology. All Rights Reserved.)
- Published
- 2015
- Full Text
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42. Increase in resistance to extended-spectrum cephalosporins in Salmonella isolated from retail chicken products in Japan.
- Author
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Noda T, Murakami K, Etoh Y, Okamoto F, Yatsuyanagi J, Sera N, Furuta M, Onozuka D, Oda T, Asai T, and Fujimoto S
- Subjects
- Animals, Bacterial Proteins genetics, Japan, Meat microbiology, Molecular Sequence Data, Phenotype, Polymerase Chain Reaction, Salmonella enzymology, beta-Lactamases genetics, Anti-Bacterial Agents pharmacology, Cephalosporins pharmacology, Chickens microbiology, Salmonella drug effects, Salmonella genetics, beta-Lactam Resistance genetics
- Abstract
Extended-spectrum β-lactamase (ESBL)-producing Salmonella are one of the most important public health problems in developed countries. ESBL-producing Salmonella strains have been isolated from humans in Asian countries neighboring Japan, along with strains harboring the plasmid-mediated extended-spectrum cephalosporin (ESC)-resistance gene, ampC (pAmpC). However, only a few studies have investigated the prevalence of ESC-resistant Salmonella in chicken products in Japan, which are the main vehicle of Salmonella transmission. The aim of this study was to investigate the prevalence of ESBL-producing, pAmpC-harboring, or carbapenem-resistant Salmonella in chicken products in Japan. In total, 355 out of 779 (45.6%) chicken product samples collected from 1996-2010 contained Salmonella, resulting in 378 distinct isolates. Of these isolates, 373 were tested for resistance to ESCs, cephamycins, or carbapenems. Isolates that showed resistance to one or more of these antimicrobials were then examined by PCR and DNA sequence analysis for the presence of the bla(CMY), bla(CTX-M), bla(TEM), and bla(SHV) resistance genes. Thirty-five resistant isolates were detected, including 26 isolates that contained pAmpC (bla(CMY-2)), and nine ESBL-producing isolates harboring bla(CTX-M) (n = 4, consisting of two bla(CTX-M-2) and two bla(CTX-M-15 genes)), bla(TEM) (n = 4, consisting of one bla(TEM-20) and three bla(TEM-52) genes), and bla(SHV) (n = 1, bla(SHV-12)). All pAmpC-harboring and ESBL-producing Salmonella isolates were obtained from samples collected after 2005, and the percentage of resistant isolates increased significantly from 0% in 2004 to 27.9% in 2010 (P for trend = 0.006). This increase was caused in part by an increase in the number of Salmonella enterica subsp. enterica serovar Infantis strains harboring an approximately 280-kb plasmid containing bla(CMY-2) in proximity to ISEcp1. The dissemination of ESC-resistant Salmonella containing plasmid-mediated bla(CMY-2) in chicken products indicates the need for the development of continuous monitoring strategies in the interests of public health.
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- 2015
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43. Seasonal Fluctuations in Air Pollution in Dazaifu, Japan, and Effect of Long-Range Transport from Mainland East Asia.
- Author
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Coulibaly S, Minami H, Abe M, Hasei T, Sera N, Yamamoto S, Funasaka K, Asakawa D, Watanabe M, Honda N, Wakabayashi K, and Watanabe T
- Subjects
- Air Movements, Air Pollutants toxicity, Air Pollution adverse effects, Environmental Monitoring, Asia, Eastern, Iron analysis, Iron toxicity, Lead analysis, Lead toxicity, Mutagenicity Tests, Nitrates analysis, Nitrates toxicity, Polycyclic Aromatic Hydrocarbons analysis, Polycyclic Aromatic Hydrocarbons toxicity, Salmonella typhimurium drug effects, Salmonella typhimurium genetics, Seasons, Sulfates analysis, Sulfates toxicity, Air Pollutants analysis, Air Pollution analysis, Dust analysis
- Abstract
To clarify the seasonal fluctuations in air pollution and the effect of long-range transport, we collected airborne particles (n=118) at Dazaifu in Fukuoka, Japan, from June 2012 to May 2013 and measured Pb and SO4(2-), which are indicators of the long-range transport of anthropogenic air pollutants, as well as their mutagenicity, and other factors. The levels of airborne particles, Pb, and SO4(2-) were very high on March 4, 8, 9, and 19, and May 13, 21, and 22, 2013. The backward trajectories indicated that air masses had arrived from the Gobi Desert and northern China on those days. The mutagenicity of airborne particles was examined using the Ames test on Salmonella typhimurium YG1024. Highly mutagenic airborne particles were mostly collected in winter, and most of them showed high activity both with and without S9 mix. High levels of polycyclic aromatic hydrocarbons (PAHs) were found in many samples that showed high mutagenicity. For the samples collected on January 30, February 21, and March 4, the levels of Pb, SO4(2-), PAHs, and mutagenicity were high, and the backward trajectories indicated that air masses present on those days had passed through northern or central China. The Japan Meteorological Agency registered Asian dust events at Fukuoka on March 8, 9, and 19, 2013. The results of the present study suggest that high levels of anthropogenic air pollutants were transported with Asian dust. Similarly, long-range transport of air pollutants including mutagens occurred on days when Asian dust events were not registered.
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- 2015
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44. Does sequence type 33 of Shiga toxin-producing Escherichia coli O91 cause only mild symptoms?
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Maeda E, Murakami K, Etoh Y, Onozuka D, Sera N, Asoshima N, Honda M, Narimatsu H, Iyoda S, Watahiki M, and Fujimoto S
- Subjects
- Abdominal Pain, Diarrhea, Humans, Multilocus Sequence Typing, Phylogeny, Escherichia coli Infections microbiology, Escherichia coli Infections physiopathology, Shiga-Toxigenic Escherichia coli genetics, Shiga-Toxigenic Escherichia coli pathogenicity
- Published
- 2015
- Full Text
- View/download PDF
45. A foodborne outbreak of group A streptococcal infection in Fukuoka Prefecture, Japan.
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Okamoto F, Murakami K, Maeda E, Oishi A, Etoh Y, Kaida M, Makigusa M, Nakashima K, Jinnouchi Y, Takemoto H, Kakegawa H, Yamasaki C, Manabe S, Sasaki M, Ogata K, Ikebe T, and Sera N
- Subjects
- Humans, Japan epidemiology, Disease Outbreaks statistics & numerical data, Foodborne Diseases epidemiology, Foodborne Diseases microbiology, Streptococcal Infections epidemiology, Streptococcal Infections microbiology, Streptococcus pyogenes
- Published
- 2014
- Full Text
- View/download PDF
46. Nonspecificity of primers for Escherichia albertii detection.
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Maeda E, Murakami K, Okamoto F, Etoh Y, Sera N, Ito K, and Fujimoto S
- Subjects
- Bacterial Proteins genetics, Cluster Analysis, Escherichia genetics, Food Microbiology, Humans, Phylogeny, Sensitivity and Specificity, Sequence Homology, Bacteriological Techniques methods, DNA Primers genetics, Escherichia classification, Escherichia isolation & purification, Molecular Diagnostic Techniques methods, Polymerase Chain Reaction methods
- Published
- 2014
- Full Text
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47. Gene and cytokine profile analysis of macrolide-resistant Mycoplasma pneumoniae infection in Fukuoka, Japan.
- Author
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Matsuda K, Narita M, Sera N, Maeda E, Yoshitomi H, Ohya H, Araki Y, Kakuma T, Fukuoh A, and Matsumoto K
- Subjects
- Anti-Bacterial Agents pharmacology, Bacterial Proteins genetics, Child, Child, Preschool, Cytokines immunology, Female, Humans, Interleukin-6 immunology, Japan epidemiology, Macrolides pharmacology, Male, Microbial Sensitivity Tests, Mycoplasma pneumoniae isolation & purification, Pneumonia, Mycoplasma epidemiology, Pneumonia, Mycoplasma microbiology, Point Mutation, Prevalence, Anti-Bacterial Agents administration & dosage, Drug Resistance, Bacterial, Macrolides administration & dosage, Mycoplasma pneumoniae drug effects, Mycoplasma pneumoniae genetics, Pneumonia, Mycoplasma drug therapy, Pneumonia, Mycoplasma immunology
- Abstract
Background: Recent epidemiologic data suggest that the prevalence of macrolide resistant Mycoplasma pneumoniae (MR-M. pneumoniae) is increasing rapidly worldwide. This study assessed the present status of M. pneumoniae infection in Japan and clinical end-points to distinguish children with MR-M. pneumoniae., Methods: During an outbreak of M. pneumoniae infections in Fukuoka, Japan in 2010-11, a total of 105 children with clinically suspected M. pneumoniae infection were enrolled. M. pneumoniae was analyzed for macrolide resistance in domain V of the 23S rRNA gene. Sixty -five patients with PCR positive for M. pneumoniae were analyzed with regard to clinical symptoms, efficacy of several antimicrobial agents and several laboratory data., Results: Causative pathogens were detected in 81.0% (85 of 105) and M. pneumoniae was identified 61.9% (65 of 105). The resistance rate of M. pneumoniae was 89.2% (58 of 65) in this general pediatric outpatient setting. Patients infected with MR-M. pneumoniae showed longer times to resolution of fever and required frequent changes of the initially prescribed macrolide to another antimicrobial agent. We observed three different genotypes of M. pneumoniae including the rarely reported A2063T mutation (A2063G: 31 strains, A2063T: 27 strains, no mutation: 7 strains). Drug susceptibility testing showed different antimicrobial susceptibility profiles for each genotype. Serum IFN-gamma, IL-6 and IP-10 levels were higher in patients with MR-genotypes than in those infected with no-mutation strains (p < 0.001)., Conclusions: Macrolide resistance is more common than previously thought and a small epidemic of rarely reported A2063T mutation was observed in Fukuoka, Japan. Furthermore our results reveal the possibility that levels of certain inflammatory cytokines may be a candidate to predict MR-M.pneumoniae infection.
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- 2013
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48. Salmonella in liquid eggs and other foods in fukuoka prefecture, Japan.
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Murakami K, Noda T, Onozuka D, and Sera N
- Abstract
The study aimed to evaluate the prevalence of Salmonella in retail and wholesale foods in Fukuoka Prefecture, Japan. A total of 2,021 samples collected between 1999 and 2010 were tested using a culture method. Samples consisted of liquid eggs (n = 30), meat (beef and pork) (n = 781), offal (n = 69), processed meats (n = 2), seafood (n = 232), processed seafood (dried fish) (n = 76), vegetables (n = 481), processed vegetables (n = 87), fruits (n = 167), and herbs (n = 96) from 574 outlets and wholesale agents in 15 areas (five samples were undocumented regarding outlets). Overall, liquid egg showed significantly (P < 0.001) higher frequencies of Salmonella contamination (13.3%) than beef (1/423, 0.2%) and pork (3/235, 1.3%). Salmonella enterica subsp. enterica serovar Enteritidis, the most common serovar as a human pathogen, were isolated from two liquid egg samples. No Salmonella were isolated from seafood and vegetable-related samples including seed sprouts (n = 261). In conclusion, liquid egg is a significant Salmonella vehicle, showing a need to continue the vaccination of chickens to prevent S. Enteritidis contamination in Japanese eggs. Moreover, further study is needed to evaluate Salmonella contamination in seed sprouts with more sampling from retailers there.
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- 2013
- Full Text
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49. A long-term follow-up of serum myeloperoxidase antineutrophil cytoplasmic antibodies (MPO-ANCA) in patients with Graves disease treated with propylthiouracil.
- Author
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Ishii R, Imaizumi M, Ide A, Sera N, Ueki I, Horie I, Ando T, Usa T, Ejima E, Ashizawa K, and Eguchi K
- Subjects
- Adult, Aged, Antithyroid Agents adverse effects, Female, Follow-Up Studies, Graves Disease blood, Graves Disease enzymology, Humans, Male, Middle Aged, Peroxidase antagonists & inhibitors, Propylthiouracil adverse effects, Statistics, Nonparametric, Antibodies, Antineutrophil Cytoplasmic blood, Antithyroid Agents therapeutic use, Graves Disease drug therapy, Graves Disease immunology, Peroxidase immunology, Propylthiouracil therapeutic use
- Abstract
Propylthiouracil (PTU) is known to induce myeloperoxidase antineutrophil cytoplasmic antibodies (MPO-ANCA) in patients with Graves disease (GD). Previously, we showed that serum MPO-ANCA were frequently seen in patients with GD treated with PTU. In this study, we analyzed 13 patients with positive MPO-ANCA examining a long-term clinical consequence of these patients as well as antibody titers during 5.6 +/- 3.0 years. PTU therapy was continued in 8 patients and discontinued in 5 patients. Antibody titers decreased in 7 of 8 patients who discontinued PTU therapy but remained positive in 5 patients 5 years after PTU withdrawal. The initial MPO-ANCA levels were significantly higher in those antibody titers remained positive for longer than 5 years (n=5) than in those titers turned to be negative within 5 years after PTU withdrawal (n=3) (203 +/- 256 EU and 22 +/- 2 EU, respectively, P=0.04), but there were no significant differences in age, gender, duration of PTU therapy or dosage of PTU. Among 5 patients who continued PTU therapy, 2 patients with initially low MPO-ANCA titers turned to having negative antibody. No patients had new symptoms or signs of vasculitis throughout the follow-up periods. The long-term follow-up study suggests that higher MPO-ANCA levels remain positive for years after PTU withdrawal but are rarely associated with vasculitis.
- Published
- 2010
- Full Text
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50. Isolation of Shiga toxin 2f-producing Escherichia coli (O115:HNM) from an adult symptomatic patient in Fukuoka Prefecture, Japan.
- Author
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Etoh Y, Murakami K, Ichihara S, Sera N, Hamasaki M, Takenaka S, Horikawa K, Kawano K, Takeishi T, Kuwana Y, Inoue A, Nagatsu Y, Hira Y, Takahashi M, and Ito K
- Subjects
- Abdominal Pain etiology, Adhesins, Bacterial genetics, Adult, Animals, Chickens, DNA, Bacterial chemistry, DNA, Bacterial genetics, Diarrhea microbiology, Escherichia coli Proteins genetics, Fever etiology, Foodborne Diseases microbiology, Headache etiology, Humans, Japan, Male, Molecular Sequence Data, Sequence Analysis, DNA, Shiga-Toxigenic Escherichia coli genetics, Young Adult, Escherichia coli Infections microbiology, Shiga Toxin biosynthesis, Shiga-Toxigenic Escherichia coli isolation & purification
- Abstract
Shiga toxin 2f-producing Escherichia coli (O115:HNM) with eae was isolated from a symptomatic patient in Fukuoka Prefecture, Japan. The patient was a 23-year-old male and his symptoms were diarrhea, abdominal pain, headaches and a fever (37.7 degrees C). He had eaten raw chicken meat, raw chicken eggs, cooked chicken meat and raw vegetables about 13 h prior to the onset of the symptoms. The patient's specimen was examined, and no diarrheagenic agents were detected except for Shiga toxin 2f-producing E. coli (STEC(2f)) with eae. This is the first report of the serotype O115:HNM possessing stx(2f). We discuss the necessity of routinely using stx(2f)-detecting PCR primers for detection of this enteric pathogen.
- Published
- 2009
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