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EP08.01-036 Low-dose EGFR-TKIs Directly Induce Maturation and Functional Activity of Human Dendritic Cells in an EGFR-independent manner. J Thorac Oncol 2022. [DOI: 10.1016/j.jtho.2022.07.608] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Effective method of monitoring cerebral tissue oxygen saturation in cardiac surgery patients by combined use of tNIRS-1 and bispectral index. Sci Rep 2021; 11:24126. [PMID: 34916554 PMCID: PMC8677723 DOI: 10.1038/s41598-021-03527-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2021] [Accepted: 12/01/2021] [Indexed: 11/11/2022] Open
Abstract
To continuously and noninvasively monitor the cerebral tissue oxygen saturation (StO2) and hemoglobin concentration (gasHb) in cardiac surgery patients, a method combining the use of a cerebral tissue oximeter using near infrared time-resolved spectroscopy (tNIRS-1) and the bispectral index (BIS) was developed in this study. Moreover, the correlation between the estimated hemoglobin concentration (estHb), measured via tNIRS-1, and the hemoglobin concentration (gasHb), analyzed using a blood gas analyzer, were compared. The relationship between the BIS and gasHb was also examined. Through the comparison of BIS and StO2 (r1), and estHb and gasHb (r2), the correlation between the two was clarified with maximum r1 and r2 values of 0.617 and 0.946, respectively. The relationship between BIS and gasHb (r3), showed that there was a favorable correlation with a maximum r3 value of 0.969. There was also a continuous correlation between BIS and StO2 in patients undergoing cardiac surgery. In addition, a strong correlation was found between estHb and gasHb, and between BIS and gasHb. It was therefore concluded that the combined use of BIS and tNIRS-1 is useful to evaluate cerebral hypoxia, allowing for quick response to cerebral hypoxia and reduction of hemoglobin concentration during the operation.
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Inhibition of lipid oxidation and hexanal production in cooked meats by microbial iron chelator deferriferrichrysin from rice wine. J FOOD PROCESS PRES 2021. [DOI: 10.1111/jfpp.15943] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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P12.02 Systemic Anticancer Therapy Upregulate Plasma Levels of Damage-Associated Molecular Patterns in Patients With Advanced Lung Cancer. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.08.324] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Pyruvate metabolism redirection for biological production of commodity chemicals in aerobic fungus Aspergillus oryzae. Metab Eng 2020; 61:225-237. [DOI: 10.1016/j.ymben.2020.06.010] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2020] [Revised: 06/03/2020] [Accepted: 06/22/2020] [Indexed: 01/31/2023]
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Identification of a novel pyrithiamine resistance marker gene thiI for genome co-editing in Aspergillus oryzae. J Biosci Bioeng 2020; 130:227-232. [PMID: 32487497 DOI: 10.1016/j.jbiosc.2020.04.013] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2020] [Revised: 03/24/2020] [Accepted: 04/28/2020] [Indexed: 11/25/2022]
Abstract
Marker genes are essential for gene modification and genome editing of microorganisms. In Aspergillus oryzae, a widely used host for enzyme production, only a few marker genes can be used for positive selection. One of these genes, the pyrithiamine (PT) resistance marker gene thiA, is not useful for CRISPR/Cas9 genome editing because of its unique resistance-conferring mechanism. In this study, a novel PT resistance marker was investigated considering its potential applications in genome editing. A mutant resistant to PT was selected from UV-mutagenized A. oryzae RIB40. Whole genome analysis was conducted on the mutants, and a novel candidate gene for PT resistance was identified. This candidate gene exhibited similarity to the thiamine transporter gene thi9 of Schizosaccharomyces pombe and was designated as thiI. A thiI loss-of-function mutant was generated using the CRISPR/Cas9 genome editing system to investigate its effect on PT resistance. This mutant showed PT resistance and exhibited no growth defect or auxotrophy. The thiI gene was further investigated for its use as a selection marker in genome co-editing. Ribonucleoprotein complex comprising recombinant Cas9 nuclease and sgRNA targeting thiI or another target gene (wA or sreA) was prepared and simultaneously introduced into A. oryzae RIB40. thiI and target gene double loss-of-function mutants were efficiently selected on PT-containing medium. thiI was shown to be a useful marker gene in A. oryzae for use in genome editing. This study is expected to provide insights, which will promote basic research and industrial applications of A. oryzae.
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Modified expression of multi-cellulases in a filamentous fungus Aspergillus oryzae. BIORESOURCE TECHNOLOGY 2019; 276:146-153. [PMID: 30623869 DOI: 10.1016/j.biortech.2018.12.117] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2018] [Revised: 12/28/2018] [Accepted: 12/29/2018] [Indexed: 06/09/2023]
Abstract
Aspergillus oryzae, a filamentous fungus, can secrete large amounts of enzymes extracellularly. We constructed a genetically engineered A. oryzae that simultaneously produced cellobiohydrolase, endoglucanase, and β-glucosidase by integrating multiple copies of the genes encoding these cellulases into fungal chromosomes. The resulting strain possessed 5-16 copies of each cellulase gene within the chromosome and showed approximately 10-fold higher activity versus single integration strains. Copy number polymorphisms were attributed to differences in flanking region sequence for the integrated gene fragments. Furthermore, we found that the P-sodM/T-glaB set demonstrated the strongest transcription levels per gene copy number. We therefore modified promoter/terminator set and cellulase gene combinations based on this polymorphism and transcription level data, with the resulting transformant showing 40-fold higher cellulolytic activity versus the single integration strain. This designed expression method could be useful for the overexpression of multiple enzymes and pathway flux control-mediated metabolic engineering in A. oryzae.
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Sake lees extract improves hepatic lipid accumulation in high fat diet-fed mice. Lipids Health Dis 2017; 16:106. [PMID: 28578672 PMCID: PMC5457550 DOI: 10.1186/s12944-017-0501-y] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2016] [Accepted: 05/25/2017] [Indexed: 02/06/2023] Open
Abstract
Background Nonalcoholic fatty liver disease (NAFLD) is increasing worldwide as one of the leading causes of chronic liver disease. Sake lees (SL) are secondary products of sake manufacturing and are considered to have beneficial effects on human health. To investigate these effects, we used high fat diet (HFD)-fed mice treated with or without the SL extract. Method Mice were the HFD ad libitum for 8 weeks and were administered 500 μL of distilled water with or without the SL extract (350 mg/mL) by a feeding needle daily for the last 4 weeks. Food intake, body weight, and liver weight were measured. Triacylglycerol content and the mRNA and protein expression levels of various lipid and glucose metabolism-related genes were determined in liver tissues. The levels of triglyceride, free fatty acids, glucose, insulin, and liver cell damage markers were determined in serum. Fatty acid-induced lipid accumulation in HepG2 cells was assessed in the presence or absence of the SL extract. Results Mice fed a HFD and treated with the SL extract demonstrated a significant reduction in hepatic lipid accumulation and mRNA and protein levels of peroxidome proliferator-activated receptor γ (PPARγ), PPARα, CD36, and phosphoenolpyruvate carboxykinase 1 in the liver, while the SL extract did not affect body weight and food intake. Moreover, insulin resistance and hepatic inflammation in HFD-fed mice improved after administration of the SL extract. In HepG2 cells, the SL extract suppressed fatty acid-induced intracellular lipid accumulation. Conclusions These findings suggest that treatment with the SL extract could potentially reduce the risk of NAFLD development, and that the SL extract may be clinically useful for the treatment of NAFLD.
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Breeding of high malate‐producing diploid sake yeast with a homozygous mutation in the
VID24
gene. JOURNAL OF THE INSTITUTE OF BREWING 2016. [DOI: 10.1002/jib.366] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Abstract
We investigated diurnal variation and age-related changes in bone turnover markers in female Göttingen minipigs. Ten females, 6–9 months of age, were used for confirmation of diurnal variation. Blood was collected at 3 h intervals for 24 h, and bone-specific alkaline phosphatase and intact osteocalcin (OC) levels were determined by enzyme immunoassay and radioimmunoassay, respectively. Urine was collected at 3 h intervals for 24 h using a tray attached to the bottom of the cage. The levels of N-terminal telopeptide of type I collagen (NTX) were determined by enzyme immunoassay. Pyridinoline and deoxypyridinoline were measured by high performance liquid chromatography. OC and NTX exhibited diurnal variation (Kruskal–Wallis test, P < 0.05), with the highest and lowest levels at 18:00 h (76.7 ± 26.2 ng/ml) and 06:00 h (44.3 ± 10.3 ng/ml), and at 03:00–05:59 h (550.4 ± 82.4 nmol/μmol Cr) and 12:00–14:59 h (297.8 ± 152.5 nmol/μmol Cr), respectively. In the study of age-related changes, blood and urine samples from 66 females (age range, 3–76 months) were examined to determine the bone turnover markers. All markers showed high correlations with age (0.569 < R2 < 0.818). High levels of bone turnover markers were observed in young animals, decreasing with age (Kruskal–Wallis test, P < 0.01). The diurnal variation and age-related changes revealed in the present study will be useful in studies of bone diseases using female Göttingen minipigs.
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First report of Panton-Valentine leukocidin-positive methicillin-susceptible Staphylococcus aureus ST88 harbouring ΦSa2usa isolated from refractory breast abscesses in Japan. New Microbes New Infect 2016; 13:62-4. [PMID: 27453786 PMCID: PMC4941198 DOI: 10.1016/j.nmni.2016.06.006] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2016] [Revised: 06/06/2016] [Accepted: 06/06/2016] [Indexed: 11/16/2022] Open
Abstract
A methicillin-susceptible Staphylococcus aureus with Panton–Valentine leukocidin (PVL) genes was isolated from refractory breast abscesses of 12-year-old girl in Japan, and classified into ST88, spa-t1245 and coa-IIIa. This strain harboured PVL phage ΦSa2usa, which is usually found in ST8 community-acquired methicillin-resistant S. aureus clone USA300.
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Enhancement of malate-production and increase in sensitivity to dimethyl succinate by mutation of the VID24 gene in Saccharomyces cerevisiae. J Biosci Bioeng 2016; 121:665-671. [DOI: 10.1016/j.jbiosc.2015.11.012] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2015] [Revised: 10/23/2015] [Accepted: 11/12/2015] [Indexed: 10/22/2022]
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Comparison of human cell engraftment and differentiation abilities among strains of immunodeficient mice with different genetic backgrounds. Toxicol Lett 2015. [DOI: 10.1016/j.toxlet.2015.08.1042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Effective saccharification of kraft pulp by using a cellulase cocktail prepared from genetically engineered Aspergillus oryzae. Biosci Biotechnol Biochem 2015; 79:1034-7. [DOI: 10.1080/09168451.2015.1006568] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Abstract
Kraft pulp is a promising feedstock for bioproduction. The efficiency of kraft pulp saccharification was improved by using a cellulase cocktail prepared from genetically engineered Aspergillus oryzae. Application of the cellulase cocktail was demonstrated by simultaneous saccharification and fermentation, using kraft pulp and non-cellulolytic yeast. Such application would make possible to do an efficient production of other chemicals from kraft pulp.
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Measurement of family-centered care in the neonatal intensive care unit and professional background. J Perinatol 2015; 35:284-9. [PMID: 25429382 DOI: 10.1038/jp.2014.204] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/03/2014] [Revised: 10/06/2014] [Accepted: 10/09/2014] [Indexed: 11/09/2022]
Abstract
OBJECTIVE The aims of this study were to examine the validity and reliability of the Measure of Processes of Care for Service Providers (MPOC-SP) for multidisciplinary teams in neonatal intensive care units (NICUs) and to examine differences among professions. STUDY DESIGN A Japanese language version of the MPOC-SP questionnaire was distributed among the professionals employed at three perinatal medical centers. RESULT A total of 83 multidisciplinary team members completed the questionnaire. The construct validity was examined by a confirmative analysis of each scale structure. The MPOC-SP showed adequate internal consistency. The test-retest analysis showed that the MPOC-SP, except the 'providing general information' scale, is a reliable tool. The results suggest that professional background affects the attitude and behavior of professionals involved in family-centered care. CONCLUSION The MPOC-SP has good psychometric properties and can be used to identify areas for improvement in the family-centered care provided by multidisciplinary teams in the NICUs.
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L-lactic acid production from starch by simultaneous saccharification and fermentation in a genetically engineered Aspergillus oryzae pure culture. BIORESOURCE TECHNOLOGY 2014; 173:376-383. [PMID: 25314668 DOI: 10.1016/j.biortech.2014.09.094] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/18/2014] [Revised: 09/17/2014] [Accepted: 09/18/2014] [Indexed: 06/04/2023]
Abstract
Lactic acid is a commodity chemical that can be produced biologically. Lactic acid-producing Aspergillus oryzae strains were constructed by genetic engineering. The A. oryzae LDH strain with the bovine L-lactate dehydrogenase gene produced 38 g/L of lactate from 100g/L of glucose. Disruption of the wild-type lactate dehydrogenase gene in A. oryzae LDH improved lactate production. The resulting strain A. oryzae LDHΔ871 produced 49 g/L of lactate from 100g/L of glucose. Because A. oryzae strains innately secrete amylases, A. oryzae LDHΔ871 produced approximately 30 g/L of lactate from various starches, dextrin, or maltose (all at 100 g/L). To our knowledge, this is the first report describing the simultaneous saccharification and fermentation of lactate from starch using a pure culture of transgenic A. oryzae. Our results indicate that A. oryzae could be a promising host for the bioproduction of useful compounds such as lactic acid.
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Management and Long-Term Clinical Outcome of Api2-Malt1 Positive Gastric Malt Lymphoma. Ann Oncol 2014. [DOI: 10.1093/annonc/mdu339.23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Aspergillus oryzae-based cell factory for direct kojic acid production from cellulose. Microb Cell Fact 2014; 13:71. [PMID: 24885968 PMCID: PMC4035902 DOI: 10.1186/1475-2859-13-71] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2014] [Accepted: 05/11/2014] [Indexed: 12/19/2022] Open
Abstract
Background Kojic acid (5-Hydroxy-2-(hydroxymethyl)-4-pyrone) is one of the major secondary metabolites in Aspergillus oryzae. It is widely used in food, pharmaceuticals, and cosmetics. The production cost, however, is too high for its use in many applications. Thus, an efficient and cost-effective kojic acid production process would be valuable. However, little is known about the complete set of genes for kojic acid production. Currently, kojic acid is produced from glucose. The efficient production of kojic acid using cellulose as an inexpensive substrate would help establish cost-effective kojic acid production. Results A kojic acid transcription factor gene over-expressing the A. oryzae strain was constructed. Three genes related to kojic acid production in this strain were transcribed in higher amounts than those found in the wild-type strain. This strain produced 26.4 g/L kojic acid from 80 g/L glucose. Furthermore, this strain was transformed with plasmid harboring 3 cellulase genes. The resultant A. oryzae strain successfully produced 0.18 g/L of kojic acid in 6 days of fermentation from the phosphoric acid swollen cellulose. Conclusions Kojic acid was produced directly from cellulose material using genetically engineered A. oryzae. Because A. oryzae has efficient protein secretion ability and secondary metabolite productivity, an A. oryzae-based cell factory could be a platform for the production of various kinds of bio-based chemicals.
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The usefulness of left atrial longitudinal myocardial dysfunction segmentally evaluated by three-dimensional speckle tracking echocardiography for identification of paroxysmal atrial fibrillation. Eur Heart J 2013. [DOI: 10.1093/eurheartj/eht308.p1123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Impact of angle between interventricular septum and ascending aorta on ellipsoid-shaped aortic annuls evaluated by three-dimensional transthoracic echocardiography. Eur Heart J 2013. [DOI: 10.1093/eurheartj/eht307.p270] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Tumor Promotion by 12-O-Tetradecanoylphorbol-13-Acetate in an Ultra-Short-Term Skin Carcinogenesis Bioassay Using rasH2 Mice. Vet Pathol 2013; 50:903-8. [DOI: 10.1177/0300985813486811] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Assessment of the skin tumor–promoting potential of 12- O-tetradecanoylphorbol-13-acetate (TPA) after initiation with 7,12-dimethylbenz[ a]anthracene (DMBA) was conducted using rasH2 transgenic (Tg) mice and their nontransgenic (non-Tg) littermates. Mice were treated with DMBA (50 μg/100 μL acetone) on clipped back skin at the commencement of the study, and 1 week thereafter, TPA was applied at 8 μg/200 μL or 4 μg/200 μL acetone, once or twice weekly, for 7 weeks. Skin nodules were observed in the rasH2 Tg mice from week 4, and the incidence reached 100% at weeks 5 and 6. The number of skin nodules (multiplicity) in the 8-μg twice-weekly, 8-μg once-weekly, 4-μg twice-weekly, and 4-μg once-weekly groups was 62.4, 46.2, 62.6, and 36.9, respectively. The non-Tg mice also developed skin nodules, but the sensitivity to induction in the rasH2 Tg mice was higher. No nodules were observed in the acetone groups, but single nodules were apparent in the no-treatment rasH2 Tg and non-Tg groups. In conclusion, skin promotion effects could be detected within only 8 weeks in the rasH2 mice, and the concentration of 4 μg TPA once weekly was sufficient as a positive control. This short-term skin carcinogenesis bioassay using rasH2 mice could represent a useful tool for the assessment of drug and chemical safety with cutaneous treatment.
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High production of llama variable heavy-chain antibody fragment (VHH) fused to various reader proteins by Aspergillus oryzae. Appl Microbiol Biotechnol 2012; 97:761-6. [DOI: 10.1007/s00253-012-4211-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2012] [Revised: 05/21/2012] [Accepted: 06/03/2012] [Indexed: 10/28/2022]
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Trauma Association of Canada Annual Scientific Meeting abstractsErythroopoietin resuscitated with normal saline, Ringer’s lactate and 7.5% hypertonic saline reduces small intestine injury in a hemorrhagic shock and resuscitation rat model.Analgesia in the management of pediatric trauma in the resuscitative phase: the role of the trauma centre.Multidisciplinary trauma team care in Kandahar, Afghanistan: current injury patterns and care practices.Does computed tomography for penetrating renal injury reduce renal exploration? An 8-year review at a Canadian level 1 trauma centre.The other side of pediatric trauma: violence and intent injury.Upregulation of activated protein C leads to factor V deficiency in early trauma coagulopathy.A provincial integrated model of improved care for patients following hip fracture.Sports concussion: an Olympic boxing model comparing sex with biomechanics and traumatic brain injury.A multifaceted quality improvement strategy to optimize monitoring and management of delirium in trauma patients: results of a clinician survey.Risk factors for severe all-terrain vehicle injuries in Alberta.Evaluating potential spatial access to trauma centre care by severely injured patients.Incidence of brain injury in facial fractures.Surgical outcomes and the acute care surgery service.The acute care general surgery population and prognostic factors for morbidity and mortality.Disaster preparedness of trauma.What would you like to know and how can we help you? Assessing the needs of regional trauma centres.Posttraumatic stress disorder screening for trauma patients at a level 1 trauma centre.Physical and finite element model reconstruction of a subdural hematoma event.Abdominal wall reconstruction in the trauma patient with an open abdomen.Development and pilot testing of a survey to measure patient and family experiences with injury care.Occult shock in trauma: What are Canadian traumatologists missing?Timeliness in obtaining emergent percutaneous procedures for the severely injured patient: How long is too long?97% of massive transfusion protocol activations do not include a complete hemorrhage panel.Trauma systems in Canada: What system components facilitate access to definitive care?The role of trauma team leaders in missed injuries: Does specialty matter?The adverse consequences of dabigatran among trauma and acute surgical patients.A descriptive study of bicycle helmet use in Montréal.Factor XIII, desmopressin and permissive hypotension enhance clot formation compared with normotensive resuscitation: uncontrolled hemorrhagic shock model.Negative pressure wound therapy for critically ill adults with open abdominal wounds: a systematic review.The “weekend warrior:” Fact or fiction for major trauma?Canadian injury preventon curriculum: a means to promote injury prevention.Penetrating splenic trauma: Safe for nonoperative management?The pediatric advanced trauma life support course: a national initiative.The effectiveness of a psycho-educational program among outpatients with burns or complex trauma.Trauma centre performance indicators for nonfatal outcomes: a scoping review.The evaluation of short track speed skating helmet performance.Complication rates as a trauma care performance indicator: a systematic review.Unplanned readmission following admission for traumatic injury: When, where and why?Reconstructions of concussive impacts in ice hockey.How does head CT correlate with ICP monitoring and impact monitoring discontinuation in trauma patients with a Marshall CT score of I–II?Impact of massive transfusion protocol and exclusion of plasma products from female donors on outcome of trauma patients in Calgary region of Alberta Health Services.Primary impact arthrodesis for a neglected open Weber B ankle fracture dislocation.Impact of depression on neuropsychological functioning in electrical injury patients.Predicting the need for tracheostomy in patients with cervical spinal cord injury.Predicting crumping during computed tomography imaging using base deficit.Feasibility of using telehomecare technology to support patients with an acquired brain injury and family care-givers.Program changes impact the outcomes of severely injured patients.Do trauma performance indicators accurately reflect changes in a maturing trauma program?One-stop falls prevention information for clinicians: a multidisciplinary interactive algorithm for the prevention of falls in older adults.Use of focused assessment with sonography for trauma (FAST) for combat casualties in forward facilities.Alberta All-terrain Vehicle Working Group: a call to action.Observations and potential role for the rural trauma team development course (RTTDC) in India.An electronic strategy to facilitate information-sharing among trauma team leaders.Development of quality indicators of trauma care by a consensus panel.An evaluation of a proactive geriatric trauma consultation service.Celebrity injury-related deaths: Is a gangster rapper really gangsta?Prevention of delirium in trauma patients: Are we giving thiamine prophylaxis a fair chance?Intra-abdominal injury in patients who sustain more than one gunshot wound to the abdomen: Should non-operative management be used?Retrospective review of blunt thoracic aortic injury management according to current treatment recommendations.Telemedicine for trauma resuscitation: developing a regional system to improve access to expert trauma care in Ontario.Comparing trauma quality indicator data between a pediatric and an adult trauma hospital.Using local injury data to influence injury prevention priorities.Systems saving lives: a structured review of pediatric trauma systems.What do students think of the St. Michael’s Hospital ThinkFirst Injury Prevention Strategy for Youth?An evidence-based method for targeting a shaken baby syndrome prevention media campaign.The virtual mentor: cost-effective, nurse-practitioner performed, telementored lung sonography with remote physician guidance.Quality indicators used by teaching versus nonteaching international trauma centres.Compliance to advanced trauma life support protocols in adult trauma patients in the acute setting.Closing the quality improvement loop: a collaborative approach.National Trauma Registry: “collecting” it all in New Brunswick.Does delay to initial reduction attempt affect success rates for anterior shoulder dislocation (pilot study)?Use of multidisciplinary, multi-site morbidity and mortality rounds in a provincial trauma system.Caring about trauma care: public awareness, knowledge and perceptions.Assessing the quality of admission dictation at a level 1 trauma centre.Trauma trends in older adults: a decade in review.Blunt splenic injury in patients with hereditary spherocytosis: a population-based analysis.Analysis of trauma team activation in severe head injury: an institutional experience.ROTEM results correlate with fresh frozen plasma transfusion in trauma patients.10-year trend of assault in Alberta.10-year trend in alcohol use in major trauma in Alberta.10-year trend in major trauma injury related to motorcycles compared with all-terrain vehicles in Alberta.Referral to a community program for youth injured by violence: a feasibility study.New impaired driving laws impact on the trauma population at level 1 and 3 trauma centres in British Columbia, Canada.A validation study of the mobile medical unit/polyclinic team training for the Vancouver 2010 Winter Games.Inferior vena cava filter use in major trauma: the Sunny-brook experience, 2000–2011.Relevance of cellular microparticles in trauma-induced coagulopathy: a systemic review.Improving quality through trauma centre collaboratives.Predictors of acute stress response in adult polytrauma patients following injury.Patterns of outdoor recreational injury in northern British Columbia.Risk factors for loss-to-follow up among trauma patients include functional, socio-economic, and geographic determinants: Would mandating opt-out consent strategies minimize these risks?Med-evacs and mortality rates for trauma from Inukjuak, Nunavik, Quebec.Review of open abdomens in McGill University Health Centre.Are surgical interventions for trauma associated with the development of posttraumatic retained hemothorax and empyema?A major step in understanding the mechanisms of traumatic coagulopathy: the possible role of thrombin activatable fibrinolysis inhibitor.Access to trauma centre care for patients with major trauma.Repeat head computed tomography in anticoagulated traumatic brain injury patients: still warranted.Improving trauma system governance. Can J Surg 2012. [DOI: 10.1503/cjs.006312] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
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Synthesis and application of an Nδ-acetyl-Nδ-hydroxyornithine analog: Identification of novel metal complexes of deferriferrichrysin. Bioorg Med Chem 2012; 20:2651-5. [DOI: 10.1016/j.bmc.2012.02.033] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2012] [Revised: 02/09/2012] [Accepted: 02/10/2012] [Indexed: 11/29/2022]
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Continuous carcinogenic susceptibility monitoring of CB6F1 TG RASH2 mice. Toxicol Lett 2011. [DOI: 10.1016/j.toxlet.2011.05.306] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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FR183998 protects against the increased microvascular permeability associated with ischemia-reperfusion injury in the canine lung. Int J Angiol 2011. [DOI: 10.1007/bf01616494] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
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Establishment of two-stage skin carcinogenicity study in CB6F1 Tg rasH2 mice. Toxicol Lett 2010. [DOI: 10.1016/j.toxlet.2010.03.616] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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ABO blood type incompatible kidney transplantation without splenectomy prepared with plasma exchange and rituximab. Transplant Proc 2009; 40:3445-7. [PMID: 19100409 DOI: 10.1016/j.transproceed.2008.06.110] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2008] [Accepted: 06/16/2008] [Indexed: 12/28/2022]
Abstract
We have designed a protocol for ABO-incompatible kidney transplantations based on preoperative plasmapheresis with a tacrolimus/mycophenolate mofetil/methylprednisolone/basiliximab protocol using low-dose rituximab (200 mg/body) instead of splenectomy to prevent antibody-mediated acute rejection. Eight patients successfully received transplants with this protocol. The titers of anti-A and -B antibodies as well as the number of CD20(+) cells were readily maintained at a low level posttransplantation. There were no side effects. All patients have renal transplant function with a follow-up of 1-34 months.
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Isolation, identification and excretion profile of the principal urinary metabolite of the recently banned designer drug 1-(3-trifluoromethylphenyl)piperazine (TFMPP) in rats. Xenobiotica 2008; 35:107-16. [PMID: 15788372 DOI: 10.1080/00498250400020335] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
The metabolism of 1-(3-trifluoromethylphenyl)piperazine (TFMPP), a recently banned designer drug, in rats was studied by analysing its urinary metabolites. p-Hydroxy-TFMPP (p-OH-TFMPP) was isolated and identified as the main metabolite by using nuclear magnetic resonance spectroscopy, gas chromatography-mass spectrometry and high-performance liquid chromatography-electrospray ionization mass spectrometry (LC-ESI MS). The time-course excretion profiles of TFMPP and p-OH-TFMPP in rats were investigated following a single intraperitoneal dosing of 5 mg kg(-1) TFMPP by using an optimized analytical procedure that combined solid-phase extraction and LC-ESI MS techniques. The cumulative amount of p-OH-TFMPP excreted within the first 48 h reached approximately 64% of the dose, of which 70% was the glucuronide conjugated form. The cumulative amount of parent TFMPP excreted was less than 0.7% of the dose. The results suggest that p-OH-TFMPP would be the most relevant metabolite to be detected for TFMPP exposure in the forensic and clinical analysis of human urine.
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Soluble G protein of respiratory syncytial virus inhibits Toll-like receptor 3/4-mediated IFN-beta induction. Int Immunol 2008; 20:1169-80. [DOI: 10.1093/intimm/dxn074] [Citation(s) in RCA: 56] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
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Autologous Blood Transfusion for Kidney Transplant Recipients. Transplant Proc 2008; 40:1371-2. [DOI: 10.1016/j.transproceed.2008.03.136] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2007] [Accepted: 03/06/2008] [Indexed: 11/17/2022]
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Perioperative real-time monitoring of indocyanine green clearance by pulse spectrophotometry predicts remnant liver functional reserve in resection of hepatocellular carcinoma. Br J Surg 2006; 93:339-46. [PMID: 16498606 DOI: 10.1002/bjs.5258] [Citation(s) in RCA: 61] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
BACKGROUND There is no standard method for predicting remnant liver functional reserve after hepatectomy or for monitoring it in real time. METHODS Indocyanine green (ICG) clearance (K) was measured non-invasively and instantaneously using pulse spectrophotometry before surgery, during inflow occlusion and after hepatectomy in 75 patients who underwent anatomical liver resection for hepatocellular carcinoma (HCC). RESULTS Eight patients (11 per cent) suffered liver failure and one (1 per cent) died in hospital. An estimated remnant K value of 0.090 per min was the cut-off value for liver failure. In a logistic regression model, the estimated remnant K (0.090 per min; P = 0.022) and age (65 years; P = 0.025) were significant predictors of postoperative liver failure. There was a correlation between the estimated and measured post-hepatectomy K, and between the inflow occlusion K and measured post-hepatectomy K (P < 0.001). The cut-off value of less than 0.090 per min for the estimated remnant K resulted in 88 per cent sensitivity and 82 per cent specificity for predicting liver failure. CONCLUSION Perioperative real-time monitoring of ICG-K is useful for evaluating the remnant liver functional reserve before, during and after liver resection for HCC. The estimated remnant K is a significant predictor of liver failure.
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Bedside red cell volumetry by low-dose carboxyhaemoglobin dilution using expiratory gas analysis. Br J Anaesth 2006; 96:186-94. [PMID: 16377649 DOI: 10.1093/bja/aei302] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND We developed a non-invasive, continuous, high-resolution method of measuring carboxyhaemoglobin fraction (COHb%) using expiratory gas analysis (EGA). We assessed whether application of EGA to carboxyhaemoglobin dilution provides red cell volume (RCV) measurement with accuracy equivalent to that of CO-haemoximetry, with a smaller infusion volume of carbon-monoxide-saturated autologous blood (COB). Method. We assessed the agreement between repeated COHb% measurements by EGA and simultaneous measurement by CO-haemoximetry, using Bland and Altman plot, in healthy subjects and patients with artificially controlled ventilation and no radiological evidence of pulmonary oedema or atelectasis. We assessed the agreement between RCV measurements by EGA with infusion of 20 ml of COB (RCVEGA) and RCV measurements by CO-haemoximetry with infusion of 100 ml of COB (RCVHEM), in healthy subjects. RESULTS The 'limits of agreement' between COHb% measurement by EGA (1 min average) and CO-haemoximetry were -0.09 and 0.08% in healthy subjects, and -0.11 and 0.09% in patients. Given the resolution of CO-haemoximetry (0.1%), the accuracy of EGA was equivalent to or greater than that of CO-haemoximetry. The 'limits of agreement' between RCVEGA and RCVHEM were -0.14 and 0.15 litre. Given the average resolution of RCVHEM (0.14 litre), the accuracy of RCVEGA was equivalent to that of RCVHEM. CONCLUSION EGA provided non-invasive, accurate, continuous, high-resolution COHb% measurements. Applying EGA to carboxyhaemoglobin dilution, we achieved RCV measurements with accuracy equivalent to that of CO-haemoximetry, with one-fifth of the COB infusion volume. However, clinical application of the method is limited to patients with no radiological evidence of pulmonary oedema or atelectasis.
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Reliability of rapid urinary test for antibody to Helicobacter pylori in adult patients with proteinuria. Diagn Microbiol Infect Dis 2006; 54:105-8. [PMID: 16406182 DOI: 10.1016/j.diagmicrobio.2005.09.009] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2005] [Revised: 09/21/2005] [Accepted: 09/26/2005] [Indexed: 01/06/2023]
Abstract
A urinary test for detecting the anti-H. pylori antibody using immunochromatography (RAPIRAN) is considered suitable for the screening purpose. However, this may yield spurious results in the presence of proteinuria. The present study was conducted to evaluate the diagnostic performance of RAPIRAN in patients with proteinuria. Urine and serum samples of adult inpatients with proteinuria were used for analyses. The diagnosis of H. pylori infection was made based on the seropositivity of anti-H. pylori antibody using 2 different serum tests. Fifty-one subjects were eligible for analyses. The serum tests showed negative and positive in 25 and 26 patients, respectively. Two of 25 seropositive patients had a negative result in RAPIRAN, and 1 provided invalid data. All of seronegative patients showed negative in RAPIRAN. The overall accuracy was 95.0%. The present study showed that RAPIRAN has diagnostic quality enough to use clinically also in patients with proteinuria.
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Gastric myoelectrical activity and serum albumin level in Japanese patients on hemodialysis. J Gastroenterol 2005; 40:999-1000. [PMID: 16261438 DOI: 10.1007/s00535-005-1662-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/06/2004] [Accepted: 03/10/2005] [Indexed: 02/04/2023]
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WAGNER-NELSON METHOD FOR ANALYSING THE ATYPICAL DOUBLE-PEAKED [13CO2] EXCRETION CURVE IN THE [13C]-OCTANOATE GASTRIC EMPTYING BREATH TEST IN HUMANS. Clin Exp Pharmacol Physiol 2005; 32:590-4. [PMID: 16026520 DOI: 10.1111/j.1440-1681.2005.04235.x] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
1. In the [(13)C]-octanoic acid breath test, the time versus pulmonary [(13)CO(2)] excretion rate curve is analysed using mathematical curve-fitting techniques to calculate gastric emptying parameters. Thus, the goodness-of-fit highly influences the accuracy of the breath test. However, a double-peaked [(13)CO(2)] excretion curve, which occasionally develops owing to the presence of an interval of quiescent gastric emptying (the plateau phase), is likely to be fitted poorly. 2. In pharmacokinetics, the Wagner-Nelson method has been used to describe precisely the absorption kinetics of orally administered drugs and its reliability is independent of the nature of gastric emptying. A recent study has shown the potential of the Wagner-Nelson method to generate a realistic gastric emptying flow curve from [(13)CO(2)] excretion data. In the present report, we have demonstrated that the Wagner-Nelson method can visualize the plateau emptying phase responsible for the cases of double peaks. 3. Wagner-Nelson analysis applied to the breath test described precisely the characteristic emptying pattern of the two emptying phases being interrupted by the plateau phase. Conventional analysis for the breath test failed to detect the plateau phase. 4. The Wagner-Nelson method is a useful tool for analysing atypical double-peaking [(13)CO(2)] excretion curves.
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Effect of cigarette smoking on gastric emptying of solids in Japanese smokers: a crossover study using the 13C-octanoic acid breath test. J Gastroenterol 2005; 40:578-82. [PMID: 16007391 DOI: 10.1007/s00535-005-1591-2] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/13/2004] [Accepted: 02/11/2005] [Indexed: 02/04/2023]
Abstract
BACKGROUND Cigarette smoking is associated with an increased risk of peptic ulcer and gastroesophageal reflux disease. Gastric emptying disorders may play a role in the development of these upper gastrointestinal diseases. Thus, studies examining a link between smoking and gastric emptying disorders have clinical relevance. This study was conducted to investigate the effect of smoking on gastric emptying of solids in Japanese smokers. METHODS The (13)C-octanoic acid breath test was performed in eight male habitual smokers on two randomized occasions (either sham smoking or actively smoking). The time vs (13)CO(2) excretion rate curve was mathematically fitted to a conventional formula of y (t) = m*k*beta*e(-k*t)*(1 - e(-k*t))(beta-1), and the parameters of k and beta were determined: under the crossover protocol, a larger (smaller) beta indicates slower (faster) emptying in the early phase, and a larger (smaller) k indicates faster (slower) emptying in the later phase. The half (13)CO(2) excretion time (t(1/2b) = -[ln(1 - 2(-1/beta))]/k) and the time of maximal (13)CO(2) excretion rate (t(max) = [lnbeta]/k) were also calculated. Between the two occasions, k, beta, t(1/2b), and t(max) were compared by the Wilcoxon signed-rank test. RESULTS After smoking, k was significantly increased. No significant differences were found in beta, t(1/2), and t(max) between the two occasions. CONCLUSIONS The increase in k suggests the acceleration of gastric emptying in the later phase. For the first time, this study has revealed that acute smoking speeds the gastric emptying of solids in Japanese habitual smokers.
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The inhibition of cyclooxygenase-2 improves donor heart function following long-term preservation. J Heart Lung Transplant 2005. [DOI: 10.1016/j.healun.2004.12.051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
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Long-term preservation using a new apparatus combined with suppression of proinflammatory cytokines improves donor heart function following transplantation in a canine model. J Heart Lung Transplant 2004. [DOI: 10.1016/j.healun.2003.11.323] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022] Open
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Abstract
Amino acid residues in the ligand binding pocket of human neuroglobin have been identified by site-directed mutagenesis and their properties investigated by resonance Raman and flash photolysis methods. Wild-type neuroglobin has been shown to have six-coordinate heme in both ferric and ferrous states. Substitution of His96 by alanine leads to complete loss of heme, indicating that His96 is the proximal ligand. The resonance Raman spectra of M69L and K67T mutants were similar to those of wild-type (WT) neuroglobin in both ferric and ferrous states. By contrast, H64V was six-coordinate high-spin and five-coordinate high-spin in the ferric and ferrous states, respectively, at acidic pH. The spectra were pH-dependent and six-coordinate with the low-spin component dominating at alkaline pH. In a double mutant H64V/K67T, the high-spin component alone was detected in the both ferric and the ferrous states. This implies that His64 is the endogenous ligand and that Lys67 is situated nearby in the distal pocket. In the ferrous H64V and H64V/K67T mutants, the nu(Fe-His) stretching frequency appears at 221 cm(-1), which is similar to that of deoxymyoglobin. In the ferrous CO-bound state, the nu(Fe-CO) stretching frequency was detected at 521 and 494 cm(-1) in WT, M69L, and K67T, while only the 494 cm(-1) component was detected in the H64V and H64V/K67T mutants. Thus, the 521 cm(-1) component is attributed to the presence of polar His64. The CO binding kinetics were biphasic for WT, H64V, and K67T and monophasic for H64V/K67T. Thus, His64 and Lys67 comprise a unique distal heme pocket in neuroglobin.
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Abstract
We describe successful induction of immune tolerance (IT) in a 10-month-old boy with severe haemophilia B. Urticaria developed soon after starting prophylactic treatment and was associated with an inhibitor at 7 Bethesda units mL(-1). Initially, we tried low dose factor IX therapy to induce IT with only a transient effect. The patient experienced an intracranial haemorrhage. A simple bolus dose of FIX eradicated the inhibitor. Thereafter he has been free from inhibitor and nephrotic syndrome for more than 5 years, although he receives FIX three times a week.
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Characteristics of immunity induced by viral antigen or conferred by antibody via different administration routes. Clin Exp Immunol 2002; 130:386-92. [PMID: 12452827 PMCID: PMC1906556 DOI: 10.1046/j.1365-2249.2002.02003.x] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
The characteristics of the immunity induced by viral antigens or conferred by antiviral antibody via different routes of administration were evaluated comparatively. C57BL/6 mice were immunized via intranasal, intradermal or enteric routes with a live recombinant vaccinia virus expressing the respiratory syncytial virus (RSV) F glycoprotein (F.rVV) or RSV, and then challenged intranasally with RSV. Inhibition of RSV replication was observed in the lungs of all the mice; however, only intranasal immunization hindered virus replication in the nose. Lung inflammation, characterized by infiltration of neutrophils and of mononuclear cells was strongest in the intradermally immunized mice, but was observed in all F.rVV immunized mice to various degrees. Intranasal administration of a potently neutralizing human anti-RSV antibody Fab fragment to infected mice inhibited RSV replication in the nose and, when combined with intraperitoneal administration, protected both the lung and the nose in the absence of deleterious lung pathology. These data suggest that intranasal immunization with F.rVV reduces RSV replication in the respiratory tract, but still induces pathological lung inflammation, even though this is milder than that observed following intradermal immunization. Local neutralizing antibody is indispensable for protection in the nose.
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Abstract
1. The metabolism of selegiline (SG) has been studied by investigating the time-course of urinary excretion of SG and its metabolites using high-performance liquid chromatography-electrospray ionization mass spectrometry (LC-ESI MS) in combination with solid-phase extraction. 2. The excretion profiles of SG and its four major metabolites, selegiline-N-oxide (SGO), N-desmethylselegiline (DM-SG), methamphetamine (MA) and amphetamine (AP), were investigated in six healthy volunteers after oral administrations of SG hydrochloride in a single dose of 2.5 or 7.5mg, and a repeat twice-daily dose of 5.0 mg day(-1) (for 3 days). 3. The cumulative amount of SGO excreted within approximately the first 8-12h was comparable with MA, and the amount in the first 72 h was 2.0-7.8 times larger (2.8-13.2% of the dose) than that of DM-SG. 4. These results demonstrate that SGO can be used in place of DM-SG, which is known to be a main specific metabolite of SG, as a new indicator for the discrimination of SG use compared with MA abuse.
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Effects of FRr167653, a P38 mitogen-activated protein kinase inhibitor, as an additive to euro-collins solution on reperfusion injury in canine lung transplantation. J Heart Lung Transplant 2002. [DOI: 10.1016/s1053-2498(01)00455-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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Effects of endothelin receptor antagonist TAK-044 on small bowel autograft from a controlled non-heart-beating donor model. Surgery 2001; 130:819-25. [PMID: 11685191 DOI: 10.1067/msy.2001.116928] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
BACKGROUND This study investigated the possibility of pharmacologic protection using an endothelin (ET) receptor antagonist, TAK-044 (TAK), for small bowel autograft in a canine controlled non-heart-beating donor (NHBD) model. METHODS Sixteen adult mongrel dogs were allocated into 2 groups. TAK (3 mg/kg) (n = 8) was administered intravenously 30 minutes before ischemia and 30 minutes before graft reperfusion. Vehicle was administered in the control (n = 8). The superior mesenteric artery and vein were clamped for 90 minutes to induce warm ischemia as a controlled NHBD model. The entire small bowel then was harvested and stored in 4 degrees C University of Wisconsin solution for 4 hours. The autograft was transplanted orthotopically. Mucosal tissue blood flow, intramucosal pH (pHi), and serum ET-1 levels were measured. Specimens were evaluated histopathologically and ET-1 immunohistochemically. RESULTS TAK provided significantly higher tissue blood flow and pHi at 3 and 6 hours after graft reperfusion and significantly higher serum ET-1 levels at 1 hour after graft reperfusion as compared with the control group. TAK had histopathologic tissue damage graded as superficial, did not reach to grade 5 on Park's grading as in controls, and provided less intense immunoreactivity for ET-1 immunohistochemical staining. CONCLUSIONS TAK may have clinical application in small bowel transplantation from controlled NHBD or conditions related to ischemia-reperfusion (I/R) injury.
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Abstract
BACKGROUND In the process of ischemia-reperfusion, inflammatory cytokines and arachidonic acid metabolites are released and followed by tissue damage. FK3311 (FK) is a selective cyclooxygenase-2 inhibitor that inhibits conversion of arachidonic acid into thromboxane A2 or prostaglandin I2. We investigated the effects of FK in canine lung transplantation. METHODS FK3311 was administered in the FK group, and vehicle was injected in the control group. The left lung was orthotopically transplanted after 12-hour preservation in Euro-Collins solution. After reperfusion, the right pulmonary artery and bronchus were ligated, and the animals were observed. Pulmonary gas exchange and hemodynamics were measured, histopathologic damages were investigated, and technetium-99m-labeled albumin scintigraphy was performed. The serum prostanoid levels were also measured. RESULTS In the FK group, pulmonary gas exchange and hemodynamics were significantly (p < 0.05) better, histologic damage and neutrophil infiltration was reduced, and technetium-99m-albumin accumulation was considerably suppressed. Also, thromboxane B2 was significantly (p < 0.05) lower, but 6-keto-prostaglandin F1alpha was not significantly reduced. CONCLUSIONS FK3311 generates protective effects on lung transplantation by a marked inhibition of thromboxane A2.
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Activation of cellular genes in the mucosal epithelium by respiratory syncytial virus: implications in disease and immunity. Pediatr Infect Dis J 2001; 20:997-1001. [PMID: 11642637 DOI: 10.1097/00006454-200110000-00016] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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