1,812 results on '"K, Kawamoto"'
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2. Cranial tibial translation measurements for radiographic diagnosis of cranial cruciate ligament rupture in dogs
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Larissa T. Pacheco, Annanda S. Figueiredo, Ruthnea A. L. Muzzi, Fernando Y. K. Kawamoto, Elaine M. S. Dorneles, and Leonardo A. L. Muzzi
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General Veterinary - Abstract
OBJECTIVE To assess the effect of tibial compression on radiographic cranial tibial translation measurements in healthy dogs and those with cranial cruciate ligament (CCL) rupture and establish specific criteria for the radiographic diagnosis of CCL rupture. ANIMALS 60 dogs. PROCEDURES Dogs were divided into 3 groups with 20 dogs each: group 1, healthy adult dogs; group 2, adult dogs with CCL rupture; and group 3, healthy young dogs. For each dog, 2 images of the stifle joint in mediolateral projection were taken, of which 1 was conventional and 1 was under tibial compression. Variables were measured in each radiographic projection: the patellar ligament angle, the patellar ligament insertion angle, the angle of tibial translation measured by 2 different methods, and the linear distance between the points of CCL origin and insertion (DPOI). Additionally, a novel variable, DPOI ratio, was evaluated. RESULTS Regarding radiographic positioning, tibial compression significantly changed most of the variables in the within-group comparison. The variable DPOI were not different with and without tibial compression in the group of healthy adult dogs but were different for dogs with CCL rupture. Thus, these are important parameters in the diagnosis of CCL rupture. In the analysis of a novel variable, DPOI ratio, dogs with CCL rupture could be distinguished from healthy dogs at a high level of specificity and sensitivity. CLINICAL RELEVANCE DPOI ratio values above 1.18 were consistently indicative of CCL rupture, thus allowing for a precise radiographic diagnosis of the condition.
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- 2023
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3. Assessing the impact of the Kuroshio Current on vertical cloud structure using CloudSat data
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A. Yamauchi, K. Kawamoto, A. Manda, and J. Li
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Physics ,QC1-999 ,Chemistry ,QD1-999 - Abstract
This study analyzed CloudSat satellite data to determine how the warm ocean Kuroshio Current affects the vertical structure of clouds. Rainfall intensity around the middle troposphere (6 km in height) over the Kuroshio was greater than that over surrounding areas. The drizzle clouds over the Kuroshio have a higher frequency of occurrence of geometrically thin (0.5–3 km) clouds and thicker (7–10 km) clouds compared to those around the Kuroshio. Moreover, the frequency of occurrence of precipitating clouds with a geometric thickness of 7 to 10 km increased over the Kuroshio. Stronger updrafts over the Kuroshio maintain large droplets higher in the upper part of the cloud layer, and the maximum radar reflectivity within a cloud layer in non-precipitating and drizzle clouds over the Kuroshio is higher than that around the Kuroshio.
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- 2018
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4. The impact of atmospheric stability and wind shear on vertical cloud overlap over the Tibetan Plateau
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J. Li, Q. Lv, B. Jian, M. Zhang, C. Zhao, Q. Fu, K. Kawamoto, and H. Zhang
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Physics ,QC1-999 ,Chemistry ,QD1-999 - Abstract
Studies have shown that changes in cloud cover are responsible for the rapid climate warming over the Tibetan Plateau (TP) in the past 3 decades. To simulate the total cloud cover, atmospheric models have to reasonably represent the characteristics of vertical overlap between cloud layers. Until now, however, this subject has received little attention due to the limited availability of observations, especially over the TP. Based on the above information, the main aim of this study is to examine the properties of cloud overlaps over the TP region and to build an empirical relationship between cloud overlap properties and large-scale atmospheric dynamics using 4 years (2007–2010) of data from the CloudSat cloud product and collocated ERA-Interim reanalysis data. To do this, the cloud overlap parameter α, which is an inverse exponential function of the cloud layer separation D and decorrelation length scale L, is calculated using CloudSat and is discussed. The parameters α and L are both widely used to characterize the transition from the maximum to random overlap assumption with increasing layer separations. For those non-adjacent layers without clear sky between them (that is, contiguous cloud layers), it is found that the overlap parameter α is sensitive to the unique thermodynamic and dynamic environment over the TP, i.e., the unstable atmospheric stratification and corresponding weak wind shear, which leads to maximum overlap (that is, greater α values). This finding agrees well with the previous studies. Finally, we parameterize the decorrelation length scale L as a function of the wind shear and atmospheric stability based on a multiple linear regression. Compared with previous parameterizations, this new scheme can improve the simulation of total cloud cover over the TP when the separations between cloud layers are greater than 1 km. This study thus suggests that the effects of both wind shear and atmospheric stability on cloud overlap should be taken into account in the parameterization of decorrelation length scale L in order to further improve the calculation of the radiative budget and the prediction of climate change over the TP in the atmospheric models.
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- 2018
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5. Effects of atmospheric dynamics and aerosols on the fraction of supercooled water clouds
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J. Li, Q. Lv, M. Zhang, T. Wang, K. Kawamoto, S. Chen, and B. Zhang
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Physics ,QC1-999 ,Chemistry ,QD1-999 - Abstract
Based on 8 years of (January 2008–December 2015) cloud phase information from the GCM-Oriented Cloud-Aerosol Lidar and Infrared Pathfinder Satellite Observation (CALIPSO) Cloud Product (GOCCP), aerosol products from CALIPSO and meteorological parameters from the ERA-Interim products, the present study investigates the effects of atmospheric dynamics on the supercooled liquid cloud fraction (SCF) during nighttime under different aerosol loadings at global scale to better understand the conditions of supercooled liquid water gradually transforming to ice phase. Statistical results indicate that aerosols' effect on nucleation cannot fully explain all SCF changes, especially in those regions where aerosols' effect on nucleation is not a first-order influence (e.g., due to low ice nuclei aerosol frequency). By performing the temporal and spatial correlations between SCFs and different meteorological factors, this study presents specifically the relationship between SCF and different meteorological parameters under different aerosol loadings on a global scale. We find that the SCFs almost decrease with increasing of aerosol loading, and the SCF variation is closely related to the meteorological parameters but their temporal relationship is not stable and varies with the different regions, seasons and isotherm levels. Obviously negative temporal correlations between SCFs versus vertical velocity and relative humidity indicate that the higher vertical velocity and relative humidity the smaller SCFs. However, the patterns of temporal correlation for lower-tropospheric static stability, skin temperature and horizontal wind are relatively more complex than those of vertical velocity and humidity. For example, their close correlations are predominantly located in middle and high latitudes and vary with latitude or surface type. Although these statistical correlations have not been used to establish a certain causal relationship, our results may provide a unique point of view on the phase change of mixed-phase cloud and have potential implications for further improving the parameterization of the cloud phase and determining the climate feedbacks.
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- 2017
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6. Effect of Removing Race and Ethnicity From Lung Cancer Prediction Models on Disparities in Eligibility for Lung Cancer Screening
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H. Katki, I. Gomez, T. Caverly, K. Kawamoto, M.P. Rivera, H. Robbins, C. Young, A. Chaturvedi, L. Cheung, and R. Landy
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- 2023
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7. The Origins and Early Evolution of the ASMS and Craniomaxillofacial Surgery: A Surgical Discipline in Its Infancy
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Reza Jarrahy and Henry K. Kawamoto
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As surgeons, in order to appreciate the possibilities of the future we must look back at our past. In honor of the 75th anniversary of the American Society of Maxillofacial Surgeons (ASMS), this historical article—the first in a series of 3 papers looking at the history of the ASMS and the evolution of craniomaxillofacial surgery as a distinct surgical subspecialty—reviews key figures and events that are germane to the development of our field from 1947, when the ASMS was founded, to 1971.
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- 2022
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8. Multidisciplinary Intervention by NST Swallowing Team at Our Hospital─Target Selection Strategy and Team Support─
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K. Kawamoto, S. Moritani, M. Takenobu, T. Fujii, M. Yasunaga, Y. Ishida, M. Nishimura, N. Nishimura, S. Sakai, and H. Kitano
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General Medicine - Published
- 2022
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9. The effects of aerosols on water cloud microphysics and macrophysics based on satellite-retrieved data over East Asia and the North Pacific
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T. Michibata, K. Kawamoto, and T. Takemura
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Physics ,QC1-999 ,Chemistry ,QD1-999 - Abstract
This study examines the characteristics of the microphysics and macrophysics of water clouds from East Asia to the North Pacific, using data from active CloudSat radar measurements and passive MODerate-resolution Imaging Spectroradiometer (MODIS) retrievals. Our goals are to clarify differences in microphysics and macrophysics between land and oceanic clouds, seasonal differences unique to the midlatitudes, characteristics of the drizzling process, and cloud vertical structure. In pristine oceanic areas, fractional occurrences of cloud optical thickness (COT) and cloud droplet effective radius (CDR) increase systematically with an increase in drizzle intensity, but these characteristics of the COT and CDR transition are less evident in polluted land areas. In addition, regional and seasonal differences are identified in terms of drizzle intensity as a function of the liquid water path (LWP) and cloud droplet number concentration (Nc). The correlations between drizzle intensity and LWP, and between drizzle intensity and Nc, are both more robust over oceanic areas than over land areas. We also demonstrate regional and seasonal characteristics of the cloud vertical structure. Our results suggest that aerosol–cloud interaction mainly occurs around the cloud base in polluted land areas during the winter season. In addition, a difference between polluted and pristine areas in the efficiency of cloud droplet growth is confirmed. These results suggest that water clouds over the midlatitudes exhibit a different drizzle system to those over the tropics.
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- 2014
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10. Foreign Accent Syndrome: A Rare Sequelae after Orthognathic Surgery
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Rich Tyrell, Henry K. Kawamoto, Kevin Chen, James P. Bradley, and Justine C. Lee
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Foreign accent syndrome ,medicine.medical_specialty ,business.industry ,medicine.medical_treatment ,American English ,Orthognathic surgery ,030206 dentistry ,Audiology ,medicine.disease ,03 medical and health sciences ,0302 clinical medicine ,Stress (linguistics) ,otorhinolaryngologic diseases ,medicine ,Psychogenic disease ,Speech disorder ,medicine.symptom ,030223 otorhinolaryngology ,business - Abstract
Background: Foreign accent syndrome is a rare speech disorder in which patients develop a sudden change in accent (eg, from American English to British accent) secondary to neurogenic, psychogenic, structural, or mixed causes. Orthognathic surgery may produce alterations in speech in select patients. Until now, foreign accent syndrome has not been noted after orthognathic surgery. Methods: A retrospective study of patients who underwent orthognathic surgery and developed foreign accent syndrome was conducted to document surgical details, postoperative course, speech evaluations, perioperative imaging and follow-up outcome (n = 5). Results: Patients who developed FAS after orthognathic procedures had an age range of 19 to 42 years and changed speech from American English to a British accent almost immediately in the postoperative period. There were no perioperative complications. Speech therapy revealed similar speech patterns and articulation changes. Patients found speech therapy helpful and all but 1 patient had resolution of their FAS speech within 2 years. Conclusion: Foreign Accent Syndrome is very rare but may result after orthognathic surgery when presumably a minor neurologic insult from temporary brain ischemia occurs during surgery. However, this phenomenon typically resolves and speech therapy may be helpful.
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- 2021
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11. Robot Motion and Grasping for Blindfold Handover
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J. Inthiam, Eiji Hayashi, Sakmongkon Chumkamon, Umaporn Yokkampon, and K. Kawamoto
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Handover ,Computer science ,business.industry ,Computer vision ,General Medicine ,Artificial intelligence ,business ,Robot motion - Published
- 2020
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12. Use of Natural Zeolite and Its Mixtures to Refine High-Concentrated Heavy Metal-Contaminated Wastewater: an Investigation of Simultaneous Removal of Cd (II) and Pb (II) by Batch Adsorption Method
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K. Kawamoto and G. M. P. Kumara
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Environmental Engineering ,Precipitation (chemistry) ,Chemistry ,Ecological Modeling ,Contamination ,Pollution ,Ion ,Metal ,Adsorption ,Wastewater ,visual_art ,visual_art.visual_art_medium ,Environmental Chemistry ,Zeolite ,Selectivity ,Water Science and Technology ,Nuclear chemistry - Abstract
This study investigated the simultaneous removal of Cd2+ and Pb2+ from wastewater using commercially available Japanese zeolite (JPZ) and its mixtures. A series of batch adsorption experiments were carried out to examine the simultaneous removal of Cd2+ and Pb2+ in binary and multi-metal solutions. Results revealed that JPZ (0.105–2.0 mm) exhibited a higher affinity for Pb2+ (>250 mg/g) over Cd2+ (
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- 2021
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13. Modified Sawdust in Adsorption of Heavy Metals from Textile Effluent
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W. C. T. K. Gunawardana, K. Kawamoto, W. S. M. S. K. Wijerathna, and W. A. G. T. N. Gunawardhana
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Textile ,Adsorption ,business.industry ,Chemistry ,visual_art ,visual_art.visual_art_medium ,Heavy metals ,Sawdust ,business ,Pulp and paper industry ,Effluent - Published
- 2021
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14. Assessment of Hydrophobicity/Oleophilicity and Hydrophilicity/Oleophobicity for Autoclave Aerated Concrete Grains Coated with Stearic and Oleic Acids
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T. T. V. Nga, H. T. T. Dang, K. Kawamoto, P. T. Huyen, M. J. Zafar, and A. Matsuno
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Materials science ,Chemical engineering ,Aeration ,Autoclave - Published
- 2021
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15. Study of management on the mobile public key infrastructure.
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K. Kawamoto and N. Nakamura
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- 2002
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16. Assessment of iInorganic pollutant contamination in groundwater using ground penetrating radar (GPR)
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Y.N.S. Wijewardana, L.W. Galagedara, M.I.M. Mowjood, and K. Kawamoto
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ground penetrating radar, groundwater, landfill leachate, solid waste dump site ,Agriculture - Abstract
The objective of this study was to evaluate the ground penetrating radar (GPR) wave responses to different levels of electrical conductivity (EC) in contaminant plumes. GPR wave simulations were carried out using GprMax2D and the simulated data were compared with GPR surveys on Lysimeter test. Trace amplitude of the reflected wave was plotted with two-way travel time and the 2D GPR images were developed to observe the variation of GPR responses with increasing EC. Simulation study showed the disappearance of the subsurface reflection and wave amplitude reaching zero at higher EC levels (when EC>0.28 S/m). In addition, when the EC level was higher, the plume thickness did not have a significant effect on the amplitude of the reflected wave. However, it was also found that reflected signal strength decreases with increasing plume thickness at a given EC level. Further research is needed to verify the results under heterogeneous aquifer conditions. Tropical Agricultural Research Vol. 26 (4): 700 – 706 (2015)
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- 2015
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17. Retraction Note: Knockdown of astrocyte-elevated gene-1 inhibits prostate cancer progression through upregulation of FOXO3a activity
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N. Kikuno, H. Shiina, S. Urakami, K. Kawamoto, H. Hirata, Y. Tanaka, R. F. Place, D. Pookot, S. Majid, M. Igawa, and R. Dahiya
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Cancer Research ,Genetics ,Molecular Biology - Published
- 2022
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18. 2017 Whitaker Lecture : History of the American Society of Craniofacial Surgery
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Henry K. Kawamoto
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medicine.medical_specialty ,Otorhinolaryngology ,business.industry ,General surgery ,medicine ,Oral Surgery ,business ,Craniofacial surgery - Published
- 2021
19. Saethre-Chotzen Syndrome: A Report of 7 Patients and Review of the Literature
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Derrick C. Wan, Karam A. Allam, Henry K. Kawamoto, Justine C. Lee, and Tarek Abulezz
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Male ,medicine.medical_specialty ,030230 surgery ,Craniosynostosis ,03 medical and health sciences ,Craniosynostoses ,0302 clinical medicine ,medicine ,Deformity ,Metopic synostosis ,Humans ,Forehead ,Craniofacial ,Retrospective Studies ,Monobloc ,business.industry ,Retrospective cohort study ,Syndrome ,Acrocephalosyndactylia ,medicine.disease ,Surgery ,medicine.anatomical_structure ,030220 oncology & carcinogenesis ,Female ,Saethre–Chotzen syndrome ,medicine.symptom ,business - Abstract
Introduction Saethre-Chotzen syndrome is a genetic condition characterized by craniofacial and limb anomalies, with craniosynostosis (mainly coronal) being the most frequent craniofacial finding. Cranial and facial deformities can be extremely variable requiring individualization of treatment strategies. We present our case series to highlight clinical findings, treatment philosophy, and challenges facing Saethre-Chotzen patients. Methods A retrospective review was performed on records of patients given a diagnosis of Saethre-Chotzen syndrome at the University of California Los Angeles (UCLA) Craniofacial Clinic (n = 7) between 1980 and 2010. Patients with complete records were included in this study, and review of demographic data, clinical findings, surgical interventions and postoperative follow-up, and stability were performed. Results Seven patients (1 male and 6 female) were included in this study. The average age at which the patients were first seen was 6.5 years. Suture involvement was bicoronal (n = 6) and unicoronal (n = 1). There was 1 patient having superimposed metopic synostosis, and there was another patient having Kleeblattschadel deformity. Previous procedures performed for patients before establishing care at UCLA were strip craniectomy (n = 2) and fronto-orbital advancement (n = 2). All patients (n = 7) had fronto-orbital advancements at UCLA. Other skeletal operations included the following: redo forehead advancement and contouring (n = 3), monobloc advancement (n = 1), and LeFort III distraction (n = 1). Five patients reached skeletal maturity, and 2 patients received LeFort I advancement for class III malocclusion, one of which also required a bilateral sagittal split osteotomy of the mandible. Conclusion Clinical presentation and severity of deformity in Saethre-Chotzen syndrome are variable. Our current report reviews our treatment strategies and illustrates the predominance of cranial and upper face deformities and frequent need for redo surgeries to address forehead asymmetry in this group of syndromic craniosynostosis patients.
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- 2020
20. A Telephone and Mail Outreach Program Successfully Increases Uptake of Hepatocellular Carcinoma Surveillance
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Joseph R. Pisegna, Matthew Bidwell Goetz, Adam Winters, Aileen Bui, Jenna K. Kawamoto, Arpan Patel, Folasade P. May, Jihane N. Benhammou, Elizabeth S. Aby, Jonathan H. Lin, and Debika Bhattacharya
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Liver Cancer ,medicine.medical_specialty ,Cirrhosis ,Chronic Liver Disease and Cirrhosis ,Chronic liver disease ,Hepatitis ,Rare Diseases ,Clinical Research ,Health care ,medicine ,lcsh:RC799-869 ,Cancer ,Hepatology ,business.industry ,Telephone call ,Liver Disease ,Original Articles ,Hepatitis C ,Odds ratio ,Health Services ,medicine.disease ,Good Health and Well Being ,Hepatocellular carcinoma ,Emergency medicine ,Etiology ,Biomedical Imaging ,lcsh:Diseases of the digestive system. Gastroenterology ,Original Article ,business ,Digestive Diseases - Abstract
Hepatocellular carcinoma (HCC) is a leading cause of cancer‐related death worldwide. Society guidelines recommend surveillance with abdominal ultrasound with or without serum alpha‐fetoprotein every 6 months for adults at increased risk of developing HCC. However, adherence is often suboptimal. We assessed the feasibility of a coordinated telephone outreach program for unscreened patients with cirrhosis within the Veteran’s Affairs (VA) health care system. Using a patient care dashboard of advanced chronic liver disease in the VA Greater Los Angeles Healthcare System, we identified veterans with a diagnosis of cirrhosis, a platelet count ≤ 150,000/uL, and no documented HCC surveillance in the previous 8 months. Eligible veterans received a telephone call from a patient navigator to describe the risks and benefits of HCC surveillance. Orders for an abdominal ultrasound and alpha‐fetoprotein were placed for veterans who agreed to surveillance. Veterans who were not reached by telephone received an informational letter by mail to encourage participation. Of the 129 veterans who met the eligibility criteria, most were male (96.9%). The most common etiology for cirrhosis was hepatitis C (64.3%), and most of the patients had compensated cirrhosis (68.2%). The patient navigators reached 32.5% of patients by phone. Patients in each group were similar across clinical and demographic characteristics. Patients who were called were more likely to undergo surveillance (adjusted odds ratio = 2.56, 95% confidence interval: 1.03‐6.33). Most of the patients (72.1%) completed abdominal imaging when reached by phone. Conclusion: Targeted outreach increased uptake of HCC surveillance among patients with cirrhosis in a large, integrated, VA health care system., HCC surveillance in patients with cirrhosis is recommended by society guidelines, yet suboptimal. In this quality improvement outreach pilot study within a large VA, we demonstrate that HCC surveillance improves by telephone and mail outreach of patients who have confirmed cirrhosis and had not been screened.
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- 2020
21. Billet flow formation of discontinuous carbon fiber ribbed square panels from continuous carbon fibers
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Daichi Tatsuno, T. Sekido, M. Okamoto, K. Kawamoto, and Takeshi Yoneyama
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chemistry.chemical_classification ,0209 industrial biotechnology ,Thermoplastic ,business.product_category ,Materials science ,Flow (psychology) ,Rigidity (psychology) ,02 engineering and technology ,Deformation (meteorology) ,020303 mechanical engineering & transports ,020901 industrial engineering & automation ,0203 mechanical engineering ,chemistry ,Cushion ,Ultimate tensile strength ,Die (manufacturing) ,General Materials Science ,Fiber ,Composite material ,business - Abstract
This paper presents a newly-developed billet flow formation method, which produces discontinuous carbon fiber thermoplastic ribbed panels by using the die cushion motion of a press. Billets of discontinuous fiber reinforced thermoplastic were extruded into rib cavities by die cushion motion while press-forming a panel of continuous fiber reinforced thermoplastic. Using billet flow formation, 200 mm long, 46 mm high, 1.4 mm thick ribs comprised of 30 mm long discontinuous fibers were formed on 400 mm wide, 300 mm depth, 50 mm high panels. The rigidity of a ribbed panel was five times greater than a panel without ribs. The tensile strength of the formed ribs was approximately 250 MPa, the same strength of the material before forming. Material behavior such as fiber flow and billet deformation during formation is discussed. This study has shown that the billet flow formation can create ribs with high mechanical strength using only a press with a die cushion.
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- 2018
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22. Internal Distraction Resulted in Improved Patient-Reported Outcomes for Midface Hypoplasia
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Justine C. Lee, David I. Hindin, Anand R. Kumar, Henry K. Kawamoto, Corbin E. Muetterties, and James P. Bradley
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Male ,Comparative Effectiveness Research ,Adolescent ,medicine.medical_treatment ,education ,Osteogenesis, Distraction ,Osteotomy ,Facial Bones ,03 medical and health sciences ,0302 clinical medicine ,Quality of life ,Distraction ,Occlusion ,Humans ,Osteotomy, Le Fort ,Medicine ,Patient Reported Outcome Measures ,Postoperative Period ,Orthodontics ,business.industry ,Craniofacial Dysostosis ,030206 dentistry ,General Medicine ,Midface hypoplasia ,Otorhinolaryngology ,Patient Satisfaction ,030220 oncology & carcinogenesis ,Surgical Fixation Devices ,Quality of Life ,Breathing ,Anxiety ,Female ,Surgery ,medicine.symptom ,business ,Airway - Abstract
BACKGROUND Both internal and external distraction devices have been used successfully in correcting midface hypoplasia. Although the indication for surgery and the osteotomy techniques may be similar, deciding when to use internal versus external devices has not been studied. The authors studied patient-reported outcomes with FACE-Q and functional surveys for internal and external devices for midface distraction patients. METHODS Patients who underwent distraction advancement after Le Fort I and Le Fort III were surveyed using the FACE-Q survey and a functional survey. Equal groups of internal and external device patients were compared (n = 64). Data recorded included: sex, age, follow-up, diagnosis, operating room time, expected blood loss, length of stay, distraction length, consolidation time, and complications. RESULTS Internal and external device groups were similar with regards to patient diagnosis, operative time, expected blood loss, distraction length but consolidation times differed (internal = 3.6 versus external = 1.1 months). For FACE-Q appearance appraisal, there were similarities in domain and scale. For the functional survey (airway/breathing, ocular/vision, occlusion/eating, speech/articulation), there was also similar scoring. However, internal device patients had superior FACE-Q scores for Quality of Life: Social Function (80.9 versus 68.9), Early Life Impact (92.9 versus 62.4), Dental Anxiety (70.2 versus 48.3), Psychological Well-being (87.8 versus 68.6); and Decision Satisfaction (81.2 versus 56.9) and Outcome Satisfaction (91.0 versus 84.7). CONCLUSIONS Internal and external midface distraction patients had similar patient-reported outcomes for appearance and functional improvement; however, internal device patients were more satisfied with their quality of life and their decision to undergo the procedure.
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- 2018
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23. Preoperative Prediction of Clinically Relevant Postoperative Pancreatic Fistula after Pancreaticoduodenectomy
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K. Hamai, K. Kawamoto, H. Kitagawa, D. Inoue, I. Makino, K. Hashida, F. Toshima, Jun Muto, and M. Okabe
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medicine.medical_specialty ,Hepatology ,business.industry ,Pancreatic fistula ,medicine.medical_treatment ,Gastroenterology ,medicine ,Pancreaticoduodenectomy ,business ,medicine.disease ,Surgery - Published
- 2021
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24. A randomized clinical study on postoperative pain comparing between the supraglottic airway device and endotracheal tubing in transabdominal preperitoneal repair (TAPP)
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K. Hashida, R. Kawashima, Y. Nagahisa, K. Kawamoto, M. Okabe, and R. Matsumoto
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Adult ,Male ,Laparoscopic surgery ,medicine.medical_specialty ,medicine.medical_treatment ,media_common.quotation_subject ,Laryngoscopy ,Hernia, Inguinal ,Group B ,Young Adult ,03 medical and health sciences ,0302 clinical medicine ,medicine ,Humans ,Postoperative Period ,Prospective Studies ,Airway Management ,Herniorrhaphy ,Aged ,media_common ,Aged, 80 and over ,Pain, Postoperative ,medicine.diagnostic_test ,business.industry ,Convalescence ,Abdominal Wall ,Middle Aged ,Hernia repair ,medicine.disease ,Surgery ,Inguinal hernia ,030220 oncology & carcinogenesis ,Anesthesia ,Female ,Laparoscopy ,030211 gastroenterology & hepatology ,Peritoneum ,Airway ,business ,Abdominal surgery - Abstract
Transabdominal preperitoneal (TAPP) repair is the most widely used laparoscopic technique for the treatment of inguinal hernia in Japan. Many studies have shown that in comparison with open hernia repair, laparoscopic repair results in less pain and a shorter convalescence. However, postoperative pain remains a concern. One possible cause of postoperative pain in the early postoperative phase is strain or cough on removal of the endotracheal tube. Use of a supraglottic airway (SGA) device helps to avoid such complaints. We evaluated postoperative pain after TAPP repair using the SGA for general anesthesia. We evaluated the postoperative pain in 146 patients with inguinal hernia repaired by TAPP in our hospital between May 2013 and May 2016. A total of 144 adult patients of American Society of Anesthesiologists physical status I and II who underwent needlescopic TAPP surgery were randomly allocated to one of two groups of 72 patients: group A (SGA), in which the patient’s airway was secured with an appropriately sized I-gel, and group B (endotracheal tube), in which the airway was secured under laryngoscopy. There was no significant difference between the groups regarding patient background, postoperative hospital stay, and operation time, and TAPP was performed safely in all cases. In the analysis of postoperative pain, the mean Numerical Rating Scale score of peak pain in group A was significantly less than that of group B (2.10 ± 2.05 vs 2.90 ± 2.65; p = 0.043). In group A, the percentage of patients who had an NRS score of 0 was 51.4% 30 min after surgery, 62.5% after 6 h and 68.1% at POD1, and compared to group B, the NRS scores were significantly higher at POD1 (p = 0.003), and the level of postoperative pain in group A tended to decrease earlier than that in group B. The results of this study are the first to show that an SGA device can reduce postoperative pain after laparoscopic surgery.
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- 2017
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25. Laparoscopic repeat liver resection for hepatocellular carcinoma: a multicentre propensity score-based study
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Z Morise, L Aldrighetti, G Belli, F Ratti, A Belli, D Cherqui, M Tanabe, G Wakabayashi, T T Cheung, C M Lo, S Tanaka, S Kubo, Y Okamura, K Uesaka, K Monden, H Sadamori, K Hashida, K Kawamoto, N Gotohda, K H Chen, A Kanazawa, Y Takeda, Y Ohmura, M Ueno, T Ogura, K S Suh, Y Kato, A Sugioka, H Nitta, M Yasunaga, N A Halium, A Laurent, H Kaneko, Y Otsuka, K H Kim, H-D Cho, C C-W Lin, Y Ome, Y Seyama, R I Troisi, G Berardi, F Roteller, G C Wilson, D A Geller, O Soubrane, T Yoh, T Kaizu, Y Kumamoto, H-S Han, E Ekmekcigil, I Dagher, D Fuks, B Gayet, J F Buell, R Ciria, J Briceno, N O'Rourke, J Lewin, B Edwin, M Shinoda, Y Abe, M Abu Hilal, M Alzoubi, Morise, Z., Aldrighetti, L., Belli, G., Ratti, F., Belli, A., Cherqui, D., Tanabe, M., Wakabayashi, G., Cheung, T. T., Lo, C. M., Tanaka, S., Kubo, S., Okamura, Y., Uesaka, K., Monden, K., Sadamori, H., Hashida, K., Kawamoto, K., Gotohda, N., Chen, K. H., Kanazawa, A., Takeda, Y., Ohmura, Y., Ueno, M., Ogura, T., Suh, K. S., Kato, Y., Sugioka, A., Nitta, H., Yasunaga, M., Halium, N. A., Laurent, A., Kaneko, H., Otsuka, Y., Kim, K. H., Cho, H. -D., Lin, C. C. W., Ome, Y., Seyama, Y., Troisi, R. I., Berardi, G., Roteller, F., Wilson, G. C., Geller, D. A., Soubrane, O., Yoh, T., Kaizu, T., Kumamoto, Y., Han, H. -S., Ekmekcigil, E., Dagher, I., Fuks, D., Gayet, B., Buell, J. F., Ciria, R., Briceno, J., O'Rourke, N., Lewin, J., Edwin, B., Shinoda, M., Abe, Y., Hilal, M. A., Alzoubi, M., and Troisi, R.
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Male ,Reoperation ,medicine.medical_specialty ,Carcinoma, Hepatocellular ,030230 surgery ,Surgical methods ,Resection ,03 medical and health sciences ,0302 clinical medicine ,DOT 3 ,Medicine ,Hepatectomy ,Humans ,Poor performance status ,In patient ,Propensity Score ,Aged ,business.industry ,Liver Neoplasms ,Middle Aged ,medicine.disease ,Surgery ,Treatment Outcome ,030220 oncology & carcinogenesis ,Hepatocellular carcinoma ,Propensity score matching ,Female ,Laparoscopy ,Liver function ,business - Abstract
In the absence of randomized controlled data and even propensity-matched data, indications for, and outcomes of, laparoscopic repeat liver resection for hepatocellular carcinoma (HCC) remain uncertain. This study aimed to clarify the current indications for laparoscopic repeat liver resection for HCC, and to evaluate outcomes.Forty-two liver surgery centres around the world registered patients who underwent repeat liver resection for HCC. Patient characteristics, preoperative liver function, tumour characteristics, surgical method, and short- and long-term outcomes were recorded.Analyses showed that the laparoscopic procedure was generally used in patients with relatively poor performance status and liver function, but favourable tumour characteristics. Intraoperative blood loss (mean(s.d.) 254(551) versus 748(1128) ml; P 0·001), duration of operation (248(156) versus 285(167) min; P 0·001), morbidity (12·7 versus 18·1 per cent; P = 0·006) and duration of postoperative hospital stay (10·1(14·3) versus 11·8(11·8) days; P = 0·013) were significantly reduced for laparoscopic compared with open procedures, whereas survival time was comparable (median 10·04 versus 8·94 years; P = 0·297). Propensity score matching showed that laparoscopic repeat liver resection for HCC resulted in less intraoperative blood loss (268(730) versus 497(784) ml; P = 0·001) and a longer operation time (272(187) versus 232(129); P = 0·007) than the open approach, and similar survival time (12·55 versus 8·94 years; P = 0·086).Laparoscopic repeat liver resection is feasible in selected patients with recurrent HCC.Dado que no existen ensayos clínicos controlados ni estudios de datos emparejados por puntaje de propensión, todavía hay dudas sobre las indicaciones y los resultados de la resección iterativa laparocópica de un carcinoma hepatocelular (hepatocellular carcinoma, HCC). Este estudio tuvo como objetivo esclarecer las indicaciones actuales y los resultados de la resección hepática laparoscópica iterativa del HCC. MÉTODOS: Se incluyeron los pacientes de 42 centros de cirugía hepática a nivel mundial en los que se había realizado una resección hepática iterativa por HCC. Se analizaron las características del paciente, la función hepática preoperatoria, las características del tumor, el abordaje quirúrgico y los resultados a corto y largo plazo.El análisis demostró que la vía laparoscópica generalmente se utilizaba en pacientes con carácteristicas tumorales favorables, pero con estado funcional y función hepatica relativamente peores. La pérdida de sangre intraoperatoria (254,3 ± 551,2 versus 748,0 ± 1127,7 mL, P 0,001), la duración de la intervención (247,6 ± 155,8 versus 285,1 ± 167,0 minutos, P 0,001), la morbilidad (12,7 versus 18,1%, P = 0,005) y la estancia hospitalaria postoperatoria (10,07 ± 14,29 versus 11,80 ± 11,79 días, P = 0,010) fueron significativamente menores para los pacientes tratados por via laparoscópica en comparacion con la vía abierta, mientra que el tiempo de supervivencia fue comparable (mediana 10,04 versus 8,94 años, P = 0,297). El estudio de emparejamiento por puntaje de propensión mostró que la resección hepática iterativa por vía laparoscópica de un HCC (frente a la vía abierta) conllevaba una menor pérdida sanguínea intraoperatoria (268,0 ± 730,2 versus 496,5 ± 784,2 mL, P = 0,01), una mayor duración de la intervención (272,1 ± 187,2 versus 231,8 ± 129,1 minutos , P = 0,07) y un tiempo de supervivencia similar (mediana 12,55 versus 8,94 años, P = 0,0855). CONCLUSIÓN: La resección hepática iterativa por vía laparoscópica es factible en pacientes seleccionados con HCC recidivado.
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- 2019
26. Laparoscopic Left Lateral Sectionectomy Using the Glisson-first Approach
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H. Kitagawa, Jun Muto, K. Hashida, K. Kawamoto, and M. Okabe
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medicine.medical_specialty ,Hepatology ,business.industry ,Gastroenterology ,Medicine ,business ,Surgery - Published
- 2021
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27. Characteristics and Management of Incidental Gallbladder Cancer: Impact and Limitation of Laparoscopic Whole Layer Cholecystectomy
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T. Park, K. Hashida, M. Okabe, K. Kawamoto, Y. Nagahisa, H. Kitagawa, Jun Muto, S. Nishina, and M. Yokota
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medicine.medical_specialty ,Hepatology ,business.industry ,medicine.medical_treatment ,General surgery ,Gastroenterology ,medicine ,Cholecystectomy ,Gallbladder cancer ,business ,medicine.disease ,Layer (electronics) - Published
- 2021
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28. Production system to form, cut, and join by using a press machine for continuous carbon fiber-reinforced thermoplastic sheets
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Daichi Tatsuno, K. Kawamoto, M. Okamoto, and Takeshi Yoneyama
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chemistry.chemical_classification ,Textile ,Thermoplastic ,Materials science ,Polymers and Plastics ,business.industry ,Fiber orientation ,Process (computing) ,02 engineering and technology ,General Chemistry ,Welding ,021001 nanoscience & nanotechnology ,law.invention ,020303 mechanical engineering & transports ,0203 mechanical engineering ,chemistry ,law ,Materials Chemistry ,Ceramics and Composites ,Join (sigma algebra) ,Trimming ,Composite material ,0210 nano-technology ,business ,Production system - Abstract
To build a processing method for textile carbon fiber reinforced thermoplastic (CFRTP) sheets, a production system to form, cut, and join the sheets by using a mechanical servo press machine was developed and examined. The system's problems were analyzed, and attempts were made to solve them through a series of processes. In press forming, the effects of sheet geometry, fiber orientation, and slide motion on the forming of the variant-cross-sectional-beam, which has a narrow and wide part, were investigated. In addition, the shear-cutting method was chosen trimming the unnecessary region of the variant-cross-sectional-beam. For the joining process, a thermal welding method that uses a heating-plate was chosen. The closed-sectional-beam was fabricated by thermally welding a pair of the variant-cross-sectional-beams. Finally, the potential of the production system for textile CFRTP sheets using the mechanical servo press machine was discussed. © 2016 The Authors Polymer Composites published by Wiley Periodicals, Inc. on behalf of Society of Plastics Engineers., Embargo Period 12 months
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- 2016
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29. Anaerobic Filter Treatment of Landfill-Leachate Using Low-Cost Filter Materials
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W. K. C. N. Dayanthi, K. H. S. S. Tharanga, B. S. R. Nanayakkara, K. Kawamoto, and H. M. L. V. K. Herath
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Alum ,Heavy metals ,Pulp and paper industry ,Filter (aquarium) ,law.invention ,chemistry.chemical_compound ,Ammonia ,chemistry ,law ,visual_art ,visual_art.visual_art_medium ,Anaerobic filter ,Leachate ,Charcoal ,Filtration - Abstract
Anaerobic-filters are quite expensive due to the high-cost of artificial filtration media. Hence, introducing alternative low-cost filtration media will make anaerobic-filters more economical. The aim of this study was to investigate the performances of several low-cost/waste materials as filtration media in anaerobic-filters to treat organic compounds, nutrients and heavy metals found in landfill-leachate. The experimental set-up consisted of four down-flow anaerobic-filter columns, two of which were control columns while the others were experimental columns. The control columns were filled with Granular Activated Carbon (GAC) and Plastic Pall Rings (PPR) as single medium. The experimental columns were filled with a mixture of Dewatered Alum Sludge (DAS), Washed Sea Sand (WSS), Firewood Charcoal (FWC), while the other with the same materials as layers. During the application of 10% diluted landfill-leachate within a period of 115 days, the overall removal efficiencies of the filter bed with layered-media were 73%, 84%, 61%, 55%, 76% and 79% for COD, BOD5, TN, Ammonia-N (NH3-N), TP and Orthophosphate-P (PO43- -P), respectively. The filter bed with mixed-media gave the overall removal efficiencies of 59%, 87%, 49%, 26%, 71% and 78% for COD, BOD5, TN, NH3-N, TP and PO43- -P, respectively. The experimental columns showed significant removal efficiencies for heavy metals, namely Pb (40%), Cd (48%), Cu (41%) and Mn (52%) in the mixed-media column and (54%), Cd (37%), Cu (54%) and Mn (57%) in the layered-media column.
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- 2020
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30. 012 Morphine requirements in paediatric live related renal transplant recipients receiving continuous transversus abdominis plane catheter
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C Masardi, Helen Hume-Smith, R Young, N Kessaris, N Clunies Ross, K Kawamoto, Francis Calder, M Drage, SD Marks, C Callaghan, and N Dobby
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business.industry ,medicine.disease ,Catheter ,Opioid ,Transversus Abdominis Plane Block ,Statistical significance ,Anesthesia ,Morphine ,Vomiting ,Medicine ,medicine.symptom ,General anaesthetic ,business ,Kidney disease ,medicine.drug - Abstract
Introduction Effective postoperative pain management is important following paediatric renal transplant (pRT). Currently, the mainstay of pain control at Great Ormond Street Hospital (GOSH) is opioid analgesia. A previous audit demonstrated that patients on opioid analgesia on the renal ward at GOSH have significantly more postoperative nausea/vomiting and pruritus than non-renal patients. The use of single-shot transversus abdominis plane block (TAPB) and continuous TAP (cTAP) infusions may reduce opioid consumption and related side effects. They have been shown to reduce opioid consumption in the first 24 hours post-surgery in adults (Farag E, et al. Continuous transversus abdominis plane block catheter analgesia for postoperative pain control in renal transplant. J Anesth 2015;29:1, pg 4–8) Methods After institutional approval, an observational study was conducted of pRT recipients. A standard general anaesthetic was administered to all patients. For those receiving a cTAP infusion, a multi-orifice catheter was placed into the wound under direct vision by the surgeon. Statistical analysis was performed using Man Whitney U-test with significance level p Results 38 patients aged 3–17 years with end-stage kidney disease undergoing living donor RT were analysed. 10 received a cTAPB +N/PCA, 28 received TAPB+N/PCA or N/PCA only. The median dose of total postoperative opioid consumption was 1.39, 22.50 and 22.47 mcg/kg/hr in cTAPB +N/PCA, TAPB+N/PCA and N/PCA groups respectively (IQR=0.33, 4.9; 15.83, 28.00; 15.18, 37.48). A significant difference was seen in morphine consumption between TAPB+N/PCA and cTABP +N/PCA groups on D0 (p=0.00453), D1 (p=0.03515) and D2 (p=0.01578). Conclusions The cTAPB technique shortens the duration of N/PCA use and shows promising results for reduction in opioid requirements postoperatively. Patients receiving cTAPB appeared more comfortable and used their N/PCA less.
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- 2018
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31. Metabolic syndrome does not affect sustained virologic response of direct-acting antivirals while hepatitis C clearance improves hemoglobin A1c
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Joseph R. Pisegna, Tien S. Dong, Jenna K. Kawamoto, Steven Huy Han, Jihane N. Benhammou, Elizabeth S. Aby, and Folasade P. May
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endocrine system diseases ,Hepatitis C virus ,Chronic Liver Disease and Cirrhosis ,Affect (psychology) ,medicine.disease_cause ,DIRECT ACTING ANTIVIRALS ,Direct-acting antivirals ,Hepatitis ,03 medical and health sciences ,0302 clinical medicine ,Diabetes mellitus ,Hepatitis - C ,Retrospective Study ,Clinical Research ,medicine ,030212 general & internal medicine ,Obesity ,Metabolic and endocrine ,Nutrition ,Hepatology ,business.industry ,Liver Disease ,Diabetes ,nutritional and metabolic diseases ,Evaluation of treatments and therapeutic interventions ,Hepatitis C ,medicine.disease ,Metabolic syndrome ,Emerging Infectious Diseases ,Infectious Diseases ,Hemoglobin A1c ,Virologic response ,6.1 Pharmaceuticals ,Immunology ,030211 gastroenterology & hepatology ,Hemoglobin ,business ,Digestive Diseases - Abstract
AIM To determine whether successful treatment with directacting antivirals (DAA) is associated with improvements in hemoglobin A1c (HbA1c) and if type 2 diabetes mellitus (T2DM) or metabolic syndrome affects sustained virologic response (SVR). METHODS We performed a retrospective analysis of all hepatitis C virus (HCV) patients at the VA Greater Los Angeles Healthcare System treated with varying DAA therapy between 2014-2016. Separate multivariable logistic regression was performed to determine predictors of HbA1c decrease ≥ 0.5 after DAA treatment and predictors of SVR 12-wk post treatment (SVR12). RESULTS A total of 1068 patients were treated with DAA therapy between 2014-2016. The presence of T2DM or metabolic syndrome did not adversely affect SVR12. 106 patients had both HCV and T2DM. Within that cohort, patients who achieved SVR12 had lower mean HbA1c pre treatment (7.35 vs 8.60, P = 0.02), and lower mean HbA1c post-treatment compared to non-responders (6.55 vs 8.61, P = 0.01). The mean reduction in HbA1c after treatment was greater for those who achieved SVR12 than for non-responders (0.79 vs 0.01, P = 0.03). In adjusted models, patients that achieved SVR12 were more likely to have a HbA1c decrease of ≥ 0.5 than those that did not achieve SVR12 (adjusted OR = 7.24, 95%CI: 1.22-42.94). CONCLUSION In HCV patients with T2DM, successful treatment with DAA was associated with a significant reduction in HbA1c suggesting that DAA may have a role in improving insulin sensitivity. Furthermore, the presence of T2DM or metabolic syndrome does not adversely affect SVR12 rates in patients treated with DAA.
- Published
- 2018
32. Treating Hepatitis C in Homeless Veterans at the Greater Los Angeles Veterans' Affairs Medical Center
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Brianna Cowan, Debika Bhattacharya, Folasade P. May, Kristin Kopelson, Omar Bakr, Marcie Hoppe, Lillian Gelberg, Shinobu Seragaki, Jenna K. Kawamoto, Lisa Altman, and Sarah Youn
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Male ,medicine.medical_specialty ,Hospitals, Veterans ,Pilot Projects ,Antiviral Agents ,Severity of Illness Index ,Medication Adherence ,Cohort Studies ,Outpatients ,Medicine ,Humans ,Center (algebra and category theory) ,Veterans Affairs ,Aged ,Veterans ,Hepatology ,business.industry ,Hepatitis C ,Hepatitis C, Chronic ,Middle Aged ,medicine.disease ,Los Angeles ,United States ,United States Department of Veterans Affairs ,Treatment Outcome ,Family medicine ,Ill-Housed Persons ,Patient Compliance ,business ,Follow-Up Studies - Published
- 2018
33. Race affects SVR12 in a large and ethnically diverse hepatitis C-infected patient population following treatment with direct-acting antivirals: Analysis of a single-center Department of Veterans Affairs cohort
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Vivek Dixit, Folasade P. May, Joseph R. Pisegna, Ram Dixit, Tien S. Dong, Debika Bhattacharya, Jenna K. Kawamoto, Samuel B. Jackson, Steven B. Han, and Jihane N. Benhammou
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Hepacivirus ,Chronic liver disease ,Hepatitis ,Cohort Studies ,0302 clinical medicine ,Nonalcoholic fatty liver disease ,030212 general & internal medicine ,General Pharmacology, Toxicology and Pharmaceutics ,race ,African Continental Ancestry Group ,education.field_of_study ,Liver Disease ,direct‐acting antivirals ,Hepatitis C ,Pharmacology and Pharmaceutical Sciences ,Middle Aged ,Blacks ,3. Good health ,sustained virological response 12 ,Treatment Outcome ,Infectious Diseases ,Neurology ,6.1 Pharmaceuticals ,Cohort ,ethnicity ,Original Article ,030211 gastroenterology & hepatology ,Infection ,direct drug acting ,medicine.medical_specialty ,Population ,European Continental Ancestry Group ,Chronic Liver Disease and Cirrhosis ,Black People ,Antiviral Agents ,White People ,03 medical and health sciences ,Medicinal and Biomolecular Chemistry ,Hepatitis - C ,Clinical Research ,Internal medicine ,medicine ,Humans ,Veterans Affairs ,education ,direct-acting antivirals ,Retrospective Studies ,business.industry ,Whites ,Evaluation of treatments and therapeutic interventions ,Retrospective cohort study ,Original Articles ,medicine.disease ,drug metabolism ,Interleukin 28B ,Logistic Models ,Emerging Infectious Diseases ,Adherence ,Multivariate Analysis ,medication procession ratio ,business ,polymorphisms ,racial disparity ,Digestive Diseases - Abstract
Hepatitis C virus (HCV) infection is a major cause of chronic liver disease. HCV cure has been linked to improved patient outcomes. In the era of direct-acting antivirals (DAAs), HCV cure has become the goal, as defined by sustained virological response 12weeks (SVR12) after completion of therapy. Historically, African-Americans have had lower SVR12 rates compared to White people in the interferon era, which had been attributed to the high prevalence of non-CC interleukin 28B (IL28B) type. Less is known about the association between race/ethnicity and SVR12 in DAA-treated era. The aim of the study is to evaluate the predictors of SVR12 in a diverse, single-center Veterans Affairs population. We conducted a retrospective study of patients undergoing HCV therapy with DAAs from 2014 to 2016 at the VA Greater Los Angeles Healthcare System. We performed a multivariable logistic regression analysis to determine predictors of SVR12, adjusting for age, HCV genotype, DAA regimen and duration, human immunodeficiency virus (HIV) status, fibrosis, nonalcoholic fatty liver disease (NAFLD) fibrosis score, homelessness, mental health, and adherence. Our cohort included 1068 patients, out of which 401 (37.5%) were White people and 400 (37.5%) were African-American. Genotype 1 was the most common genotype (83.9%, N=896). In the adjusted models, race/ethnicity and thepresence of fibrosis were statistically significant predictors of non-SVR. African-Americans had 57% lower odds for reaching SVR12 (adj.OR=0.43, 95% CI=1.5-4.1) compared to White people. Advanced fibrosis (adj.OR=0.40, 95% CI=0.26-0.68) was also a significant predictor of non-SVR. In a single-center VA population on DAAs, African-Americans were less likely than White people to reach SVR12 when adjusting for covariates.
- Published
- 2018
34. Necessity of latency period in craniofacial distraction: Investigations with in vitro microdistractor and clinical outcomes
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Kenneth L. Fan, James P. Bradley, David I. Hindin, Christina J. Tabit, Brian T. Andrews, Ginger C. Slack, and Henry K. Kawamoto
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medicine.medical_specialty ,Bone density ,medicine.medical_treatment ,education ,Osteogenesis, Distraction ,Apoptosis ,In Vitro Techniques ,Real-Time Polymerase Chain Reaction ,behavioral disciplines and activities ,Craniofacial Abnormalities ,Mice ,Imaging, Three-Dimensional ,Osteogenesis ,Distraction ,Reaction Time ,medicine ,Animals ,Humans ,Prospective Studies ,Craniofacial ,Child ,Prospective cohort study ,Cells, Cultured ,Cell Proliferation ,Osteoblasts ,biology ,business.industry ,Surgery ,Treatment Outcome ,Child, Preschool ,Latency stage ,Tissue and Organ Harvesting ,Osteocalcin ,biology.protein ,Distraction osteogenesis ,Alkaline phosphatase ,Collagen ,Mandibular Reconstruction ,Tomography, X-Ray Computed ,business ,Gels ,Microdissection ,psychological phenomena and processes - Abstract
Summary Background To determine the need for latency period in membranous bone distraction, we performed 1) in vitro comparison of preosteoblasts suspended in a 3D microdistraction model and 2) a clinical study comparing mandibular distraction cases with/without latency. Methods In the In Vitro study, Preosteoblasts polymerized in 3D-collagen gel were placed in a microdistractor and separated into three groups: 1) distraction with latency, 2) distraction without latency, and 3) static. After 2, 4, 6, and 8 days, cell proliferation, total protein levels, alkaline phosphatase activity, and osteogenic gene expression were assessed through RT-PCR. In the clinical study, patients underwent mandibular distraction in two groups: 1) latency and 2) no latency (n = 45). The rest of the distraction protocol was identical. Outcome was based on clinical examination, radiographs at six months, and 3D CT scans. Results In the In Vitro study, The distraction without latency group compared to the latency group had delays in: proliferation, total protein count, alkaline phosphatase activity, osteogenic gene expression in CBFA-1 (fourfold vs. eighteenfold), and in osteocalcin (twofold vs. sixfold). The distraction without latency group had higher apoptotic levels during the first four days compared to the latency group (68% vs. 14%). For the clinical study, similar perioperative complications (5% vs. 6%), X-ray mineralization (93% vs. 94%), bone volume, (8.6 vs. 9.1 cc) and bone density of central distraction zone (78% vs. 81%) were observed with or without latency. Conclusions In vitro studies showed poorer results in cell survival, proliferation and osteogenic activity compared to distraction with latency; yet, clinically, there were no differences in distraction with latency versus without.
- Published
- 2015
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35. High-temperature and high-voltage characteristics of Cu/diamond Schottky diodes
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K. Kawamoto, Kenji Ueda, and Hidefumi Asano
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Materials science ,business.industry ,Mechanical Engineering ,Schottky barrier ,Schottky diode ,Diamond ,High voltage ,General Chemistry ,engineering.material ,Metal–semiconductor junction ,Electronic, Optical and Magnetic Materials ,Semiconductor ,Materials Chemistry ,engineering ,Breakdown voltage ,Optoelectronics ,Electrical and Electronic Engineering ,business ,Diode - Abstract
High-temperature and high-voltage characteristics of Cu/diamond Schottky diodes were investigated. Cu Schottky diodes showed clear rectification up to ~ 700 °C. The current–voltage characteristics of the diodes at 400 °C were almost unchanged after keeping them for 30 h, implying they have high stability at ~ 400 °C. The diodes showed specific on-resistance and breakdown voltage of 83.4 mΩ cm2 and 713 V at 400 °C, respectively, which are comparable to reported highest values for diamond Schottky diodes and close to the theoretical limit for 6H-SiC at several hundred °C. These results indicate that Cu/diamond Schottky diodes are promising for high-temperature power applications.
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- 2015
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36. Disposable aptamer-sensor aided by magnetic nanoparticle enrichment for detection of salivary cortisol variations in obstructive sleep apnea patients
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Burt K. Kawamoto, Yogeswaran Umasankar, Shekhar Bhansali, JoAnna M. Scott, Pandiaraj Manickam, Jeffrey C. Nickel, Renny Edwin Fernandez, Laura R. Iwasaki, and Kristen C. Todoki
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Adult ,Male ,Hydrocortisone ,Aptamer ,Point-of-Care Systems ,High selectivity ,Nanoparticle ,lcsh:Medicine ,02 engineering and technology ,010402 general chemistry ,01 natural sciences ,Article ,Magnetite Nanoparticles ,medicine ,Humans ,Salvia ,lcsh:Science ,Disposable Equipment ,Electrodes ,Salivary cortisol ,Sleep Apnea, Obstructive ,Multidisciplinary ,Chemistry ,lcsh:R ,Sleep apnea ,Middle Aged ,021001 nanoscience & nanotechnology ,medicine.disease ,equipment and supplies ,0104 chemical sciences ,Obstructive sleep apnea ,Magnetic nanoparticles ,lcsh:Q ,Female ,0210 nano-technology ,human activities ,hormones, hormone substitutes, and hormone antagonists ,Biomedical engineering - Abstract
We report a disposable point-of-care sensing platform specific to salivary cortisol detection. The sensor is inkjet printed on a paper substrate with a metalloporphyrin based macrocyclic catalyst ink that can electrochemically reduce cortisol, captured by aptamer functionalized magnetic nanoparticles. The sensor consists of a thin magnet disc, aligned at the back of the electrode, in order to populate the magnetic nanoparticle bound cortisol at the sensing electrode area. Proof of concept studies were performed to detect salivary cortisol levels in human subjects with high and low risks for obstructive sleep apnea (OSA). High selectivity was observed to salivary cortisol against a background of closely related steroids.
- Published
- 2017
37. Novel in-situ passivation of MoCl5 doped multilayer graphene with MoOx for low-resistance interconnects
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K. Kawamoto, Y. Saito, Kazuyoshi Ueno, and M. Kenmoku
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010302 applied physics ,In situ ,Materials science ,Passivation ,Dopant ,Graphene ,Doping ,Inorganic chemistry ,chemistry.chemical_element ,02 engineering and technology ,021001 nanoscience & nanotechnology ,01 natural sciences ,law.invention ,symbols.namesake ,Chemical engineering ,chemistry ,law ,Molybdenum ,0103 physical sciences ,symbols ,Thermal stability ,0210 nano-technology ,Raman spectroscopy - Abstract
To improve the stability of multilayer graphene (MLG) doped with molybdenum pentachloride (MoCl 5 ) for low-resistance interconnects, we have newly developed an in-situ passivation process with molybdenum oxides. The improved air stability of dopants was confirmed with Raman spectroscopy by the direct MoO x passivation at room temperature.
- Published
- 2017
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38. The Tessier number 3 cleft: A report of 10 cases and review of literature
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Alan A. Lim, Ahmed Elsherbiny, Karam A. Allam, and Henry K. Kawamoto
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Male ,medicine.medical_specialty ,Adolescent ,Amniotic banding ,Choanal atresia ,Surgical Flaps ,Craniofacial Abnormalities ,Young Adult ,medicine ,Humans ,Initial treatment ,Abnormalities, Multiple ,Craniofacial ,Child ,Retrospective Studies ,Bone Transplantation ,Anophthalmia ,business.industry ,Infant ,Soft tissue ,Plastic Surgery Procedures ,medicine.disease ,Surgery ,Hemifacial microsomia ,Child, Preschool ,Face ,Female ,Amniotic Band Syndrome ,Mouth Abnormalities ,Presentation (obstetrics) ,business ,Follow-Up Studies - Abstract
The Tessier number 3 cleft is one of the most intricate and destructive of all facial clefts, presenting surgeons with a difficult task for reconstruction. We present a series of 10 patients with this rare cleft all treated by a single surgeon over 30 years. All patients with Tessier number 3 clefts treated between 1978 and 2008 by the senior surgeon were reviewed. Demographic data and all associated clinical findings including cranial and extracranial anomalies were recorded. Methods used to reconstruct each patient were also noted. Seven males and three females were identified and age at initial treatment ranged from 12 months to 12 years. Mean follow-up was 6.3 years. Multiple craniofacial anomalies were appreciated including other rare facial clefts, hypertelorbitism, lacrimal obstruction, anophthalmia, choanal atresia, and hemifacial microsomia. Amniotic banding was the most prominent extracranial finding noted in these patients. Tessier number 3 clefts can be associated with multiple other craniofacial anomalies making reconstruction challenging. Soft tissue and bony reconstruction must be considered separately, and a variety of tools may be employed to accomplish each goal. As the presentation can be highly variable, an individualized treatment plan must be made to meet each patient's specific needs.
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- 2014
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39. Hugo L. Obwegeser, M.D., D.M.D., 1920 to 2017
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Henry K. Kawamoto and Peter J. Taub
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03 medical and health sciences ,0302 clinical medicine ,Stereochemistry ,business.industry ,030220 oncology & carcinogenesis ,Medicine ,Surgery ,030230 surgery ,business - Published
- 2018
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40. Low-Cost Permeable Reactive Barrier (PRB) System to Treat the Organic Compounds and Nutrients in the Groundwater Contaminated by the Landfill-Leachate
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I. U. Nagasinghe, W. K. C. N. Dayanthi, A. M. Disanayaka, K. Kawamoto, and D. M. Kankanige
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Wastewater ,Hydraulic retention time ,Environmental remediation ,Permeable reactive barrier ,Environmental chemistry ,Environmental science ,Leachate ,Red soil ,Groundwater ,Reactive material - Abstract
When already limited safe groundwater is rapidly contaminated with landfillleachate, it is a timely need to investigate feasible remediation techniques. In this scenario, Permeable Reactive Barrier (PRB) is a potential groundwater treatment method. If waste materials can be effectively applied as PRB reactive media, the system can be made more economical. This study was focused on a treatment system with two mixed-media PRB models (PRB 1 and PRB 2) connected in series, in which dewatered alum sludge (DAS), washed quarry dust (WQD), washed sea sand (WSS), red soil (RS), bio char (BC) and saw dust (SD) were emplaced in reactive beds, to treat organic compounds and nutrients of leachate-contaminated groundwater. Wastewater parameters were measured in terms of BOD5, COD, NO–3–N , NH3-N , TN, PO3–4–P and TP. Mean removal efficiencies of BOD5 (88.2+5.7%), COD (84.2+9.6%) and NH3-N (95.6+4.2%) were phenomenal with 13.1 days of pore volume hydraulic retention time (HRT) during an experimental period of 140 days. Reactive material properties were not much affected by the interaction with landfillleachate, thus no considerable change in the removal efficiencies occurred within 140 days. The treatment efficiency of the present system with two reactors connected in series is greater than that of a single PRB reactor filled with the same reactive materials in the same packing configuration.
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- 2019
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41. A histochemical study of the posterior silk glands ofBombyx moriduring metamorphosis from larvae to pupae using frozen sections
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Kuniaki Hosono, Hajime Shiba, K Kawamoto, and Tadafumi Kawamoto
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Histology ,media_common.quotation_subject ,Apoptosis ,In situ hybridization ,Biology ,Polymerase Chain Reaction ,Gene Expression Regulation, Enzymologic ,chemistry.chemical_compound ,Bombyx mori ,In Situ Nick-End Labeling ,Animals ,DAPI ,Metamorphosis ,In Situ Hybridization ,media_common ,Larva ,Frozen section procedure ,fungi ,Metamorphosis, Biological ,Pupa ,General Medicine ,Bombyx ,biology.organism_classification ,Molecular biology ,Medical Laboratory Technology ,chemistry ,Caspases - Abstract
The fine structures of the whole bodies and the posterior silk glands of Bombyx mori during metamorphosis from larvae to pupae in the cocoon were preserved virtually without damage when frozen sections were prepared using an adhesive plastic film. We used frozen sections for histochemical and enzyme histochemistry to characterize the metamorphosis of the posterior silk glands. Frozen sections were stained with DAPI to observe nuclear changes, examined using the TUNEL method to detect DNA fragments, and investigated using in situ hybridization to detect B. mori caspase expression. Both DNA fragments and expression of B. mori caspase increased with progressing metamorphosis. The degeneration of the posterior silk gland during metamorphosis appears to be an apoptotic event.
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- 2013
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42. High-temperature characteristics of Ag and Ni/diamond Schottky diodes
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Kenji Ueda, T. Soumiya, K. Kawamoto, and Hidefumi Asano
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Materials science ,business.industry ,Mechanical Engineering ,Schottky barrier ,Schottky diode ,Diamond ,General Chemistry ,engineering.material ,Metal–semiconductor junction ,Electronic, Optical and Magnetic Materials ,Semiconductor ,Rectification ,Materials Chemistry ,engineering ,Optoelectronics ,Field-effect transistor ,Electrical and Electronic Engineering ,business - Abstract
The high-temperature characteristics of diamond Schottky diodes fabricated using Ag or Ni on in-situ boron-doped diamond were examined. Up to 600 °C, Ag Schottky diodes exhibited a high rectification ratio of the order of 10 4 . Even at ~ 750 °C, their rectification ratio was about 10, indicating that diamond field effect transistors with Ag Schottky diodes can operate at this temperature. In contrast, Ni Schottky diodes did not show clear rectification above 600 °C. An analysis of the I – V curves indicated that the Ag Schottky diodes have a higher rectification ratio than the Ni Schottky diodes at high temperatures due to their higher barrier heights ( ϕ B = ~ 2.0 and ~ 0.7 eV for Ag and Ni, respectively).
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- 2013
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43. miR-320c regulates gemcitabine-resistance in pancreatic cancer via SMARCC1
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S. Kobayashi, Yoshito Tomimaru, Yuichiro Doki, Hiroshi Wada, H. Nagano, Hirofumi Akita, Yoshifumi Iwagami, Akira Tomokuni, K. Kawamoto, Hidetoshi Eguchi, Naoki Hama, and Masaki Mori
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Oncology ,Male ,Cancer Research ,medicine.medical_specialty ,Antimetabolites, Antineoplastic ,Cell Survival ,medicine.medical_treatment ,pancreatic cancer ,Drug resistance ,Biology ,Transfection ,Deoxycytidine ,Chromatin remodeling ,Internal medicine ,Pancreatic cancer ,Cell Line, Tumor ,microRNA ,medicine ,Carcinoma ,Humans ,Aged ,Regulation of gene expression ,Chemotherapy ,gemcitabine resistance ,Genetics and Genomics ,SMARCC1 ,Middle Aged ,medicine.disease ,miR-320c ,Gemcitabine ,Gene Expression Regulation, Neoplastic ,Pancreatic Neoplasms ,MicroRNAs ,Drug Resistance, Neoplasm ,Female ,medicine.drug ,Carcinoma, Pancreatic Ductal ,Transcription Factors - Abstract
Background: Gemcitabine-based chemotherapy is the standard treatment for pancreatic cancer. However, the issue of resistance remains unresolved. The aim of this study was to identify microRNAs (miRNAs) that govern the resistance to gemcitabine in pancreatic cancer. Methods: miRNA microarray analysis using gemcitabine-resistant clones of MiaPaCa2 (MiaPaCa2-RGs), PSN1 (PSN1-RGs), and their parental cells (MiaPaCa2-P, PSN1-P) was conducted. Changes in the anti-cancer effects of gemcitabine were studied after gain/loss-of-function analysis of the candidate miRNA. Further assessment of the putative target gene was performed in vitro and in 66 pancreatic cancer clinical samples. Results: miR-320c expression was significantly higher in MiaPaCa2-RGs and PSN1-RGs than in their parental cells. miR-320c induced resistance to gemcitabine in MiaPaCa2. Further experiments showed that miR-320c-related resistance to gemcitabine was mediated through SMARCC1, a core subunit of the switch/sucrose nonfermentable (SWI/SNF) chromatin remodeling complex. In addition, clinical examination revealed that only SMARCC1-positive patients benefited from gemcitabine therapy with regard to survival after recurrence (P=0.0463). Conclusion: The results indicate that miR-320c regulates the resistance of pancreatic cancer cells to gemcitabine through SMARCC1, suggesting that miR-320c/SMARCC1 could be suitable for prediction of the clinical response and potential therapeutic target in pancreatic cancer patients on gemcitabine-based therapy.
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- 2013
44. Amorfrutin B is an efficient natural peroxisome proliferator-activated receptor gamma (PPARγ) agonist with potent glucose-lowering properties
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Anja Freiwald, Annabell Witzke, Sylvia J. Wowro, Christopher Weidner, Frank C. Schroeder, K. Kawamoto, Karsten Siems, Magdalena Kliem, Sascha Sauer, and Lutz Müller-Kuhrt
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Male ,Peroxisome proliferator-activated receptor gamma ,medicine.drug_class ,Endocrinology, Diabetes and Metabolism ,Peroxisome proliferator-activated receptor ,Biology ,Pharmacology ,Mice ,03 medical and health sciences ,0302 clinical medicine ,Internal Medicine ,medicine ,Animals ,Humans ,Hypoglycemic Agents ,Thiazolidinedione ,Receptor ,Cells, Cultured ,030304 developmental biology ,chemistry.chemical_classification ,0303 health sciences ,Lipid metabolism ,Peroxisome ,Salicylates ,3. Good health ,Mice, Inbred C57BL ,PPAR gamma ,Diabetes Mellitus, Type 2 ,chemistry ,Nuclear receptor ,030220 oncology & carcinogenesis ,Peroxisome proliferator-activated receptor alpha ,Insulin Resistance - Abstract
AIMS/HYPOTHESIS: The nuclear receptor peroxisome proliferator-activated receptor gamma (PPARgamma) is an important gene regulator in glucose and lipid metabolism. Unfortunately, PPARgamma-activating drugs of the thiazolidinedione class provoke adverse side effects. As recently shown, amorfrutin A1 is a natural glucose-lowering compound that selectively modulates PPARgamma. In this study we aimed to characterise, in vitro, a large spectrum of the amorfrutins and similar molecules, which we isolated from various plants. We further studied in vivo the glucose-lowering effects of the so far undescribed amorfrutin B, which featured the most striking PPARgamma-binding and pharmacological properties of this family of plant metabolites. METHODS: Amorfrutins were investigated in vitro by binding and cofactor recruitment assays and by transcriptional activation assays in primary human adipocytes and murine preosteoblasts, as well as in vivo using insulin-resistant high-fat-diet-fed C57BL/6 mice treated for 27 days with 100 mg kg(-1) day(-1) amorfrutin B. RESULTS: Amorfrutin B showed low nanomolar binding affinity to PPARgamma, and micromolar binding to the isotypes PPARalpha and PPARbeta/delta. Amorfrutin B selectively modulated PPARgamma activity at low nanomolar concentrations. In insulin-resistant mice, amorfrutin B considerably improved insulin sensitivity, glucose tolerance and blood lipid variables after several days of treatment. Amorfrutin B treatment did not induce weight gain and furthermore showed liver-protecting properties. Additionally, amorfrutins had no adverse effects on osteoblastogenesis and fluid retention. CONCLUSIONS/INTERPRETATION: The application of plant-derived amorfrutins or synthetic analogues thereof constitutes a promising approach to prevent or treat complex metabolic diseases such as insulin resistance or type 2 diabetes.
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- 2013
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45. Preparation of Cu 2 ZnSnSe 4 thin films by selenization of precursor evaporated from Cu 2 ZnSnSe 4 compound
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Toshiyuki Yamaguchi, T. Imanishi, S. Oura, S. Niiyama, and K. Kawamoto
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Materials science ,Band gap ,Annealing (metallurgy) ,Metallurgy ,Electron microprobe ,engineering.material ,Condensed Matter Physics ,law.invention ,Chemical engineering ,law ,Solar cell ,engineering ,Thin film solar cell ,Kesterite ,Thin film ,Ingot - Abstract
Cu2ZnSnSe4 ingot was synthesized and then used as a precursor for selenization process in order to fabricate Cu2ZnSnSe4 thin films. The thin films were prepared at each point A-F in our selenization process and their properties were investigated. Cu2ZnSnSe4 ingot and thin films had a kesterite Cu2ZnSnSe4 structure. From EPMA analysis and XRD studies, the mechanism of Cu2ZnSnSe4 formation was discussed. Cu-Se phases were related to Cu2ZnSnSe4 formation. Cu2ZnSnSe4 may decompose to Sn-Se compound during the annealing process at 550 oC. Cu2ZnSnSe4 thin film solar cells demonstrated Voc=300 mV, Isc=7.25 mA/cm2. The band gap energy of Cu2ZnSnSe4 thin film determined from the QE spectra estimated to be approximately 1.04 eV. (© 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim)
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- 2013
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46. Constructing the Philtral Column in the Secondary Cleft Lip Deformity
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Alan A. Lim, Henry K. Kawamoto, Karam A. Allam, and Rashmi Taneja
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Adult ,Male ,medicine.medical_specialty ,Adolescent ,Cleft Lip ,Surgical Flaps ,Postoperative management ,Tendons ,Cleft lip repair ,Young Adult ,Deformity ,Humans ,Medicine ,Normal appearance ,Palmaris longus tendon ,Retrospective Studies ,Philtrum ,business.industry ,Philtral column ,Upper lip ,Plastic Surgery Procedures ,Lip ,Surgery ,medicine.anatomical_structure ,Patient Satisfaction ,Female ,medicine.symptom ,business ,Follow-Up Studies - Abstract
BACKGROUND The philtrum and the Cupid's bow are the most prominent features of the upper lip and are crucial for normal appearance. Unfortunately, projection of the philtral column is a common deficiency of the repaired cleft lip. Although a multitude of methods for constructing the philtral dimple and ridge have been described, no single procedure has achieved complete satisfactory results. The authors describe their technique for construction of the philtral column using palmaris longus tendon. METHODS Between 1998 and 2009, a retrospective study was performed for identifying patients with depression of the philtral scar following cleft lip repair. Pre- and postoperative photographs were taken with at least 6 months follow-up. Postoperative patient satisfaction and occurrence of complications are reported. RESULTS In all, 17 patients who developed depression of the philtral ridge following cleft lip repair underwent philtral reconstruction utilizing palmaris longus tendon grafts by the senior author (H.K.K.). At the time of surgery, average age for 11 females and 6 males was 18.5 years. The follow-up period ranged from 6 to 126 months, with an average of 42.3 months. In the early postoperative period, 2 complications in the form of graft exposure occurred. However, both cases were successfully managed with preservation of the graft. All patients were satisfied with their long-term results, and none required further surgery. CONCLUSIONS The use of palmaris longus tendon graft is an effective, reproducible, and safe method by which to construct the philtral column in the secondary cleft lip deformity.
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- 2013
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47. Structural Characterization of Amorfrutins Bound to the Peroxisome Proliferator-Activated Receptor γ
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Konrad Büssow, J. C. de Groot, J. Krausze, Sascha Sauer, Christopher Weidner, K. Kawamoto, and Frank C. Schroeder
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medicine.medical_specialty ,Peroxisome proliferator-activated receptor ,Carbohydrate metabolism ,Crystallography, X-Ray ,01 natural sciences ,Partial agonist ,03 medical and health sciences ,Genes, Reporter ,Internal medicine ,Drug Discovery ,medicine ,Humans ,Receptor ,030304 developmental biology ,chemistry.chemical_classification ,0303 health sciences ,Molecular Structure ,010405 organic chemistry ,HEK 293 cells ,Stereoisomerism ,Peroxisome ,Salicylates ,0104 chemical sciences ,3. Good health ,Drug Partial Agonism ,PPAR gamma ,HEK293 Cells ,Endocrinology ,Nuclear receptor ,chemistry ,Molecular Medicine ,Rosiglitazone ,medicine.drug - Abstract
Amorfrutins are a family of natural products with high affinity to the peroxisome proliferator-activated receptor gamma (PPARgamma), a nuclear receptor regulating lipid and glucose metabolism. The PPARgamma agonist rosiglitazone increases insulin sensitivity and is effective against type II diabetes but has severe adverse effects including weight gain. Amorfrutins improve insulin sensitivity and dyslipidemia but do not enhance undesired fat storage. They bear potential as therapeutics or prophylactic dietary supplements. We identified amorfrutin B as a novel partial agonist of PPARgamma with a considerably higher affinity than that of previously reported amorfrutins, similar to that of rosiglitazone. Crystal structures reveal the geranyl side chain of amorfrutin B as the cause of its particularly high affinity. Typical for partial agonists, amorfrutins 1, 2, and B bind helix H3 and the beta-sheet of PPARgamma but not helix H12.
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- 2013
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48. Craniofacial surgical strategies for the correction of pneumosinus dilatans frontalis
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Giuseppe Consorti, Luigi Clauser, Manlio Galiè, and Henry K. Kawamoto
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Adult ,Male ,Cephalometry ,Frontal sinus hypertrophy ,NO ,Imaging ,Frontal Bossing ,Imaging, Three-Dimensional ,Ultrasonic Surgical Procedures ,Ectasia ,Paranasal Sinus Diseases ,medicine ,Humans ,Pneumosinus dilatans ,Reconstructive Surgical Procedures ,Craniofacial ,Tomography ,Craniofacial surgery ,Sinus (anatomy) ,Pathologic ,Frontal sinus ,business.industry ,Air ,Craniofacial Dysostosis ,Frontal bossing ,Endoscopy ,Anatomy ,Plastic Surgery Procedures ,medicine.disease ,Dilatation ,X-Ray Computed ,medicine.anatomical_structure ,Otorhinolaryngology ,Frontal Bone ,Three-Dimensional ,Forehead ,Frontal Sinus ,Female ,Surgery ,Oral Surgery ,Tomography, X-Ray Computed ,business ,Craniotomy ,Dilatation, Pathologic ,Orbit - Abstract
Introduction Pneumosinus dilatans is a rare condition and different techniques have been proposed for its management and correction. The abnormally expanded, aerated frontal sinus has been described in the literature as: frontal sinus hypertrophy, pneumosinus dilatans, pneumosinus frontalis, aerocele, pneumocele, sinus ectasia, hyperpneumatization and others. The precise aetiology and pathogenesis of the condition is unknown, although several basic hypotheses have been proposed Material and methods The authors report two cases of frontal bossing and supraorbital ridge deformity correction using craniofacial surgical principles. Discussion Functional and morphological results are discussed and compared with other open procedures. Conclusion A variety of surgical procedures have been proposed for the correction of the pneumosinus dilatans frontalis. The craniofacial approach is advocated to reproduce the normal anatomy of the forehead in the upper part, the supraorbital rim and glabellar area.
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- 2013
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49. Multidisciplinary Treatment of Antley-Bixler Syndrome
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Patricia Reese, Henry K. Kawamoto, Martin G. Martz, Elie Weiss, R. Christian Solem, and Justine C. Lee
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medicine.medical_specialty ,Antley–Bixler syndrome ,medicine.medical_treatment ,Choanal atresia ,030230 surgery ,Craniosynostosis ,03 medical and health sciences ,Frontal Bossing ,Young Adult ,0302 clinical medicine ,medicine ,Humans ,Abnormalities, Multiple ,Craniofacial ,Reduction (orthopedic surgery) ,Intracranial pressure ,business.industry ,medicine.disease ,Surgery ,Otorhinolaryngology ,030220 oncology & carcinogenesis ,Female ,Oral Surgery ,Malocclusion ,business ,Antley-Bixler Syndrome Phenotype - Abstract
Antley-Bixler syndrome is a rare form of craniosynostosis characterized by unique clinical features that present particular challenges to long-term treatment. Typical craniofacial features include midface hypoplasia, trapezoidocephaly, frontal bossing, ocular proptosis, low-set protrusive ears, and choanal atresia. A staged surgical approach including fronto-orbital and midface advancements is required for intracranial pressure reduction, globe protection, airway patency, and malocclusion. In this case report, the combined, longitudinal surgical and orthodontic treatment strategies employed to correct severe facial deformity in a long-term 21-year survivor of Antley-Bixler syndrome are reviewed.
- Published
- 2016
50. Comprehensive Cleft Care, Volume 1
- Author
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Gretchen Probst, Eric J.W. Liou, Elizabeth J. Leslie, Michael T. Mennuti, Mary Breen, Michael L. Cunningham, Jingtao Li, Linda L. D’Antonio, Nicholas J.V. Hogg, Diane L. Sabo, Jesse A. Goldstein, Donna Cutler-Landsman, Kathleen C.Y. Sie, David K. Chong, Barry L. Ramsey, Alex Campbell, Alexander L. Figueroa, Gregory S. Antonarakis, Robert M. Greene, Lacey Sischo, Richard A. Hopper, Lisa L. Repaske, Jodi E. Gustave, John B. Mulliken, Mohammad Mazaheri, Laura E. Mitchell, Peg C. Nopoulos, Adriane L. Baylis, Michael C. Kao, Kelly N. Evans, Barry H. Grayson, Martin H.S. Huang, Ana M. Mercado, Todd D. Otteson, John Daskalogiannakis, Nancy J. Scherer, Jeffrey L. Marsh, Philip Kuo-Ting Chen, Stephanie E. Watkins, Christopher R. Forrest, Marilyn C. Jones, Peter J. Taub, Thomas Samson, Patricia Daly Chibbaro, Yu-Ray Chen, Dennis R. Warner, Ryan C. Ransom, Robert J. Havlik, Darren M. Smith, Oksana A. Jackson, Faisal Al-Mufarrej, Valerie Pereira, M. Samuel Noordhoff, Dina Ricciardi, Lawrence E. Brecht, Carrie L. Heike, Lyndon M. Hill, Rebecca Gaither, Daniela Damian, Shu-Jin Lee, Robert M. Menard, Kenneth L. Jones, Bernard J. Costello, Donna M. McDonald-McGinn, Ross E. Long, Elaine H. Zackai, Farah Sheikh, Randy Sherman, Brett F. Michelotti, Alexandre Marchac, David L. Jones, Henry K. Kawamoto, Edward P. Buchanan, Hillary L. Broder, Donald R. Mackay, Jamie L. Perry, Earl A. Gage, Lauren DiCairano, Mark Splaingard, Laura A. Monson, Ann W. Kummer, Alison Kaye, Court B. Cutting, William C. Shaw, Cathy R. Henry, Jill A. Helms, Bruce B. Horswell, Gary C. Burget, Richard E. Kirschner, Arun K. Gosain, Seng-Teik Lee, David M. Fisher, Franklyn P. Cladis, Kathleen A. Kapp-Simon, Paula G. Klaiman, Steven T. Lanier, John W. Polley, M. Michele Pisano, Jasmine Y. Rodriguez, Karen W.Y. Wong, Roberto L. Flores, Mary L. Marazita, Scott A. Deacon, Seth M. Weinberg, Mark P. Mooney, Larry H. Hollier, Marilyn A. Cohen, Matthew D. Ford, Peter Randall, Ronald P. Strauss, Christina Tragos, Alvaro A. Figueroa, Joseph Michienzi, Virginia A. Hinton, Anette Lohmander, David P. Kuehn, Scott A. Dailey, Philip J. Lupo, Amy L. Conrad, Lynn Marty Grames, Charles D. Bluestone, Oluwaseun A. Adetayo, Lynn C. Richman, H. Steve Byrd, Donald V. Huebener, Kenneth E. Salyer, Judah S. Garfinkle, Debbie Sell, David E. Kauffman, Sanjay Naran, Stephen B. Baker, Joseph E. Losee, Katherine W.L. Vig, Evan W. Beale, Ramon L. Ruiz, Gunvor Semb, David J. Reisberg, Brian C. Sommerlad, Justine C. Lee, and Susan M. Salkowitz
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medicine.medical_specialty ,Plastic surgery ,business.industry ,medicine ,business ,Surgery ,Volume (compression) - Published
- 2016
- Full Text
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