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Gauthier K, Piovesan D, Ramakirshnan S, Cho S, Lawson K, Liao K, Foster P, Cheng T, Shah Y, Walters M. 56P Inhibition of HIF-2α-dependent transcription with small molecule inhibitors may provide therapeutic benefit beyond renal cell carcinoma. ESMO Open 2023. [DOI: 10.1016/j.esmoop.2023.100914] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/05/2023] Open
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Park H, Uhlemann AC, Jacobs SS, Mowbray C, Jubelirer T, Kelly KM, Walters M, Ladas EJ. Title: Obesogenic microbial signatures and the development of obesity in childhood acute lymphoblastic leukemia. Leuk Res 2023; 126:107017. [PMID: 36641874 DOI: 10.1016/j.leukres.2023.107017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2022] [Revised: 11/28/2022] [Accepted: 01/04/2023] [Indexed: 01/07/2023]
Abstract
Childhood acute lymphoblastic leukemia (ALL) is the most common childhood cancer with survival exceeding 90% for standard-risk groups. A debilitating side-effect of treatment is the development of overweight/obesity (OW/OB), which develops in approximately 40% of children by the end of treatment. The microbiome has been associated with the development of OW/OB. We examined fluctuations in the microbiome with the development of OW/OB during the first six months of treatment at diagnosis, and two subsequent timepoints (N = 62). Shotgun metagenomic sequencing was performed on Illumina Nextseq system, and taxa and functional pathways were extracted from sequences using kraken2 and humann2, respectively. An association of increased presence of several species (e.g., Klebsiella pneumoniae, Escherichia coli) was observed in children with OW/OB, while lean-promoting species (Veillonella, Haemophilus, and Akkermansia) were increased in children who maintained a normal weight. Pathway analysis revealed purine nucleotide biosynthesis, sugar nucleotide biosynthesis, and enzyme cofactor biosynthesis were positively correlated with Bacteroides spp. among children with OW/OB. We identified several taxa and functional pathways that may confer increased risk for the development of OW/OB. The associations observed in this pilot are preliminary and warrant further research in the microbiome and the development of OW/OB in childhood ALL.
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Affiliation(s)
- Heekuk Park
- Department of Medicine, Division of Infectious Diseases, Columbia University Irving Medical Center, New York, NY, USA; Microbiome and Pathogen Genomics Collaborative Center, Columbia University, New York, NY, USA
| | - A C Uhlemann
- Department of Medicine, Division of Infectious Diseases, Columbia University Irving Medical Center, New York, NY, USA; Microbiome and Pathogen Genomics Collaborative Center, Columbia University, New York, NY, USA
| | - S S Jacobs
- Division of Oncology, Children's National Medical Center, Washington, DC, USA
| | - C Mowbray
- Division of Oncology, Children's National Medical Center, Washington, DC, USA
| | - T Jubelirer
- Children's Hospital of Philadelphia, Division of Oncology and Center for Childhood Cancer Research, Philadelphia, PA, USA; University of Pennsylvania Perelman School of Medicine, Department of Pediatrics, Philadelphia, PA, USA
| | - K M Kelly
- Department of Pediatrics, Roswell Park Comprehensive Cancer Center and University at Buffalo Jacobs School of Medicine and Biomedical Sciences, Buffalo, NY, USA
| | - M Walters
- Division of Pediatric Hematology/Oncology/Stem Cell Transplant, Columbia University Irving Medical Center, New York, NY, USA
| | - E J Ladas
- Division of Pediatric Hematology/Oncology/Stem Cell Transplant, Columbia University Irving Medical Center, New York, NY, USA; Institute of Human Nutrition, Columbia University, New York, NY, USA.
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Taleb K, Walters M. P.178 A broken heart? Unexplained cardiac ischaemia after intrauterine fetal death. Int J Obstet Anesth 2022. [DOI: 10.1016/j.ijoa.2022.103474] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Bundgaard L, Åhrman E, Malmström J, Auf dem Keller U, Walters M, Jacobsen S. Effective protein extraction combined with data independent acquisition analysis reveals a comprehensive and quantifiable insight into the proteomes of articular cartilage and subchondral bone. Osteoarthritis Cartilage 2022; 30:137-146. [PMID: 34547431 DOI: 10.1016/j.joca.2021.09.006] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Revised: 08/31/2021] [Accepted: 09/13/2021] [Indexed: 02/02/2023]
Abstract
OBJECTIVE The objectives of this study was to establish a sensitive and reproducible method to map the cartilage and subchondral bone proteomes in quantitative terms, and mine the proteomes for proteins of particular interest in the pathogenesis of osteoarthritis (OA). The horse was used as a model animal. DESIGN Protein was extracted from articular cartilage and subchondral bone samples from three horses in triplicate by pressure cycling technology or ultrasonication. Digested proteins were analysed by data independent acquisition based mass spectrometry. Data was processed using a pre-established spectral library as reference database (FDR 1%). RESULTS We identified to our knowledge the hitherto most comprehensive quantitative cartilage (1758 proteins) and subchondral bone (1482 proteins) proteomes in all species presented to date. Both extraction methods were sensitive and reproducible and the high consistency of the identified proteomes (>97% overlap) indicated that both methods preserved the diversity among the extracted proteins. Proteome mining revealed a substantial number of quantifiable cartilage and bone matrix proteins and proteins involved in osteogenesis and bone remodeling, including ACAN, BGN, PRELP, FMOD, COMP, ACP5, BMP3, BMP6, BGLAP, TGFB1, IGF1, ALP, MMP3, and collagens. A number of proteins, including COMP and TNN, were identified in different protein isoforms with potential unique biological roles. CONCLUSION We have successfully developed two sensitive and reproducible non-species specific workflows enabling a comprehensive quantitative insight into the proteomes of cartilage and subchondral bone. This facilitates the prospect of investigating the molecular events at the osteochondral unit in the pathogenesis of OA in future projects.
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Affiliation(s)
- L Bundgaard
- Section of Medicine and Surgery, Department of Veterinary Clinical Sciences, University of Copenhagen, 2630 Taastrup, Denmark. Section for Protein Science and Biotherapeutics, DTU Bioengineering, Technical University of Denmark, 2800 Kgs. Lyngby, Denmark.
| | - E Åhrman
- Division of Infection Medicine Proteomics, Department of Clinical Sciences, Lund University, Lund 221 84, Sweden.
| | - J Malmström
- Division of Infection Medicine Proteomics, Department of Clinical Sciences, Lund University, Lund 221 84, Sweden.
| | - U Auf dem Keller
- Section for Protein Science and Biotherapeutics, DTU Bioengineering, Technical University of Denmark, 2800 Kgs. Lyngby, Denmark.
| | - M Walters
- Section of Medicine and Surgery, Department of Veterinary Clinical Sciences, University of Copenhagen, 2630 Taastrup, Denmark.
| | - S Jacobsen
- Section of Medicine and Surgery, Department of Veterinary Clinical Sciences, University of Copenhagen, 2630 Taastrup, Denmark.
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Belitz MW, Barve V, Doby JR, Hantak MM, Larsen EA, Li D, Oswald JA, Sewnath N, Walters M, Barve N, Earl K, Gardner N, Guralnick RP, Stucky BJ. Climate drivers of adult insect activity are conditioned by life history traits. Ecol Lett 2021; 24:2687-2699. [PMID: 34636143 DOI: 10.1111/ele.13889] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2021] [Revised: 08/27/2021] [Accepted: 08/27/2021] [Indexed: 02/04/2023]
Abstract
Insect phenological lability is key for determining which species will adapt under environmental change. However, little is known about when adult insect activity terminates and overall activity duration. We used community-science and museum specimen data to investigate the effects of climate and urbanisation on timing of adult insect activity for 101 species varying in life history traits. We found detritivores and species with aquatic larval stages extend activity periods most rapidly in response to increasing regional temperature. Conversely, species with subterranean larval stages have relatively constant durations regardless of regional temperature. Species extended their period of adult activity similarly in warmer conditions regardless of voltinism classification. Longer adult durations may represent a general response to warming, but voltinism data in subtropical environments are likely underreported. This effort provides a framework to address the drivers of adult insect phenology at continental scales and a basis for predicting species response to environmental change.
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Affiliation(s)
- Michael W Belitz
- Florida Museum of Natural History, University of Florida, Gainesville, Florida, USA
| | - Vijay Barve
- Florida Museum of Natural History, University of Florida, Gainesville, Florida, USA.,Department of Entomology, Purdue University, West Lafayette, Indiana, USA
| | - Joshua R Doby
- Florida Museum of Natural History, University of Florida, Gainesville, Florida, USA
| | - Maggie M Hantak
- Florida Museum of Natural History, University of Florida, Gainesville, Florida, USA
| | - Elise A Larsen
- Department of Biology, Georgetown University, Washington, District of Columbia, USA
| | - Daijiang Li
- Florida Museum of Natural History, University of Florida, Gainesville, Florida, USA.,Department of Biological Sciences, Louisiana State University, Baton Rouge, Louisina, USA.,Center for Computation & Technology, Louisiana State University, Baton Rouge, Louisina, USA
| | - Jessica A Oswald
- Florida Museum of Natural History, University of Florida, Gainesville, Florida, USA.,Biology Department, University of Nevada Reno, Reno, Nevada, USA
| | - Neeka Sewnath
- Florida Museum of Natural History, University of Florida, Gainesville, Florida, USA
| | - Mitchell Walters
- Florida Museum of Natural History, University of Florida, Gainesville, Florida, USA
| | - Narayani Barve
- Florida Museum of Natural History, University of Florida, Gainesville, Florida, USA
| | - Kamala Earl
- Florida Museum of Natural History, University of Florida, Gainesville, Florida, USA
| | - Nicholas Gardner
- Florida Museum of Natural History, University of Florida, Gainesville, Florida, USA
| | - Robert P Guralnick
- Florida Museum of Natural History, University of Florida, Gainesville, Florida, USA
| | - Brian J Stucky
- Florida Museum of Natural History, University of Florida, Gainesville, Florida, USA
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Lawson K, Gauthier KS, Piovesan D, Fournier J, Rosen B, Maliyan A, Beatty J, Jin L, Leleti M, Ginn E, Udyavar A, Ada C, Au J, Meleza C, Zhao S, Young S, Walters M, Powers J. Discovery and characterization of novel, potent, and selective hypoxiainducible factor (HIF)-2α inhibitors. Eur J Cancer 2020. [DOI: 10.1016/s0959-8049(20)31106-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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7
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Gordon CM, Cleveland RH, Baltrusaitis K, Massaro J, D'Agostino RB, Liang MG, Snyder B, Walters M, Li X, Braddock DT, Kleinman ME, Kieran MW, Gordon LB. Extraskeletal Calcifications in Hutchinson-Gilford Progeria Syndrome. Bone 2019; 125:103-111. [PMID: 31077852 PMCID: PMC6628204 DOI: 10.1016/j.bone.2019.05.008] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/12/2018] [Revised: 04/29/2019] [Accepted: 05/07/2019] [Indexed: 01/04/2023]
Abstract
PURPOSE Children with Hutchinson-Gilford progeria syndrome (HGPS), a rare premature aging disease, exhibit extraskeletal calcifications detected by radiographic analysis and on physical examination. The aim of this study was to describe the natural history and pathophysiology of these abnormal calcifications in HGPS, and to determine whether medications and/or supplements tested in clinical trials alter their development. METHODS Children from two successive clinical trials administering 1) lonafarnib (n = 26) and 2) lonafarnib + pravastatin + zoledronic acid (n = 37) were studied at baseline (pre-therapy), one year on therapy, and at end-of-therapy (3.3-4.3 years after the baseline visit). Calcium supplementation (oral calcium carbonate) was administered during the first year of the second trial and was subsequently discontinued. Information on calcifications was obtained from physical examinations, radiographs, and serum and urinary biochemical measures. The mineral content of two skin-derived calcifications was determined by x-ray diffraction. RESULTS Extraskeletal calcifications were detected radiographically in 12/39 (31%) patients at baseline. The odds of exhibiting calcifications increased with age (p = 0.045). The odds were unaffected by receipt of lonafarnib, pravastatin, and zoledronate therapies. However, administration of calcium carbonate supplementation, in conjunction with all three therapeutic agents, significantly increased the odds of developing calcifications (p = 0.009), with the odds plateauing after the supplement's discontinuation. Composition analysis of calcinosis cutis showed hydroxyapatite similar to bone. Although serum calcium, phosphorus, and parathyroid hormone (PTH) were within normal limits at baseline and on-therapy, PTH increased significantly after lonafarnib initiation (p < 0.001). Both the urinary calcium/creatinine ratio and tubular reabsorption of phosphate (TRP) were elevated at baseline in 22/39 (56%) and 31/37 (84%) evaluable patients, respectively, with no significant changes while on-therapy. The mean calcium × phosphorus product (Ca × Pi) was within normal limits, but plasma magnesium decreased over both clinical trials. Fibroblast growth factor 23 (FGF23) was lower compared to age-matched controls (p = 0.03). CONCLUSIONS Extraskeletal calcifications increased with age in children with HGPS and were composed of hydroxyapatite. The urinary calcium/creatinine ratio and TRP were elevated for age while FGF23 was decreased. Magnesium decreased and PTH increased after lonafarnib therapy which may alter the ability to mobilize calcium. These findings demonstrate that children with HGPS with normal renal function and an unremarkable Ca × Pi develop extraskeletal calcifications by an unidentified mechanism that may involve decreased plasma magnesium and FGF23. Calcium carbonate accelerated their development and is, therefore, not recommended for routine supplementation in these children.
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Affiliation(s)
- C M Gordon
- Division of Adolescent/Young Adult Medicine, Boston Children's Hospital, Boston, MA, USA.
| | - R H Cleveland
- Department of Radiology, Boston Children's Hospital, Boston, MA, USA
| | - K Baltrusaitis
- Department of Biostatistics, Boston University School of Public Health, Boston, MA, USA
| | - J Massaro
- Department of Biostatistics, Boston University School of Public Health, Boston, MA, USA
| | - R B D'Agostino
- Department of Biostatistics, Boston University School of Public Health, Boston, MA, USA
| | - M G Liang
- Department of Dermatology, Boston Children's Hospital, Boston, MA, USA
| | - B Snyder
- Department of Orthopaedics, Boston Children's Hospital, Boston, MA, USA
| | - M Walters
- Department of Radiology, Boston Children's Hospital, Boston, MA, USA
| | - X Li
- Department of Pathology, Yale University, New Haven, CT, USA
| | - D T Braddock
- Department of Pathology, Yale University, New Haven, CT, USA
| | - M E Kleinman
- Department of Anesthesiology, Preoperative and Pain Medicine, Boston Children's Hospital, Boston, MA, USA
| | - M W Kieran
- Division of Hematology/Oncology, Boston Children's Hospital, Boston, MA, USA
| | - L B Gordon
- Department of Anesthesiology, Preoperative and Pain Medicine, Boston Children's Hospital, Boston, MA, USA; Department of Pediatrics, Hasbro Children's Hospital and Warren Alpert Medical School of Brown University, Providence, RI, USA
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Rasko J, Walters M, Kwiatkowski J, Hongeng S, Porter J, Sauer M, Thrasher A, Thuret I, Schiller G, Elliot H, Deary B, Chen Y, Tao G, Asmal M, Locatelli F, Thompson A. Efficacy and safety of LentiGlobin gene therapy in patients with transfusion-dependent β-thalassemia and non-β0/β0 genotypes: Updated results from the completed phase 1/2 Northstar and ongoing phase 3 Northstar-2 studies. Cytotherapy 2019. [DOI: 10.1016/j.jcyt.2019.03.578] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Stochelski MA, Wilmanski T, Walters M, Burgess JR. D3T acts as a pro-oxidant in a cell culture model of diabetes-induced peripheral neuropathy. Redox Biol 2019; 21:101078. [PMID: 30593978 PMCID: PMC6306693 DOI: 10.1016/j.redox.2018.101078] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2018] [Revised: 12/08/2018] [Accepted: 12/11/2018] [Indexed: 12/27/2022] Open
Abstract
Diabetes mellitus is one of the most common chronic diseases in the United States and peripheral neuropathy (PN) affects at least 50% of diabetic patients. Medications available for patients ameliorate symptoms (pain), but do not protect against cellular damage and come with severe side effects, leading to discontinued use. Our research group uses differentiated SH-SY5Y cells treated with advanced glycation end products (AGE) as a model to mimic diabetic conditions and to study the mechanisms of oxidative stress mediated cell damage and antioxidant protection. N-acetylcysteine (NAC), a common antioxidant supplement, was previously shown by our group to fully protect against AGE-induced damage. We have also shown that 3H-1,2-dithiole-3-thione (D3T), a cruciferous vegetable constituent and potent inducer of nuclear factor (erythroid-derived 2)- like 2 (Nrf2), can significantly increase cellular GSH concentrations and protect against oxidant species-induced cell death. Paradoxically, D3T conferred no protection against AGE-induced cell death or neurite degeneration. In the present study we establish a mechanism for this paradox by showing that D3T in combination with AGE increased oxidant species generation and depleted GSH via inhibition of glutathione reductase (GR) activity and increased expression of the NADPH generating enzyme glucose-6-phosphate dehydrogenase (G6PD). Blocking NADPH generation with the G6PD inhibitor dehydroepiandrosterone was found to protect against AGE-induced oxidant species generation, loss of viability, and neurite degeneration. It further reversed the D3T potentiation effect under AGE-treated conditions. Collectively, these results suggest that strategies aimed at combating oxidative stress that rely on upregulation of the endogenous antioxidant defense system via Nrf2 may backfire and promote further damage in diabetic PN.
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Affiliation(s)
- Mateusz A Stochelski
- Department of Nutrition Science, Purdue University, West Lafayette, IN 47907, United States
| | - Tomasz Wilmanski
- Department of Nutrition Science, Purdue University, West Lafayette, IN 47907, United States
| | - Mitchell Walters
- Department of Nutrition Science, Purdue University, West Lafayette, IN 47907, United States
| | - John R Burgess
- Department of Nutrition Science, Purdue University, West Lafayette, IN 47907, United States.
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Seitz L, Ashok D, Leleti M, Powers J, Rosen B, Miles D, Sharif E, Jin L, Park A, Young S, Rieger A, Schindler U, Karakunnel J, Walters M. Final results of the phase I study in healthy volunteers of AB928, a dual antagonist of the A2aR and A2bR adenosine receptors being studied as an activator of anti-tumor immune response. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy303.050] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Hanikeri M, Savundra J, Gillett D, Walters M, McBain W. Antenatal Transabdominal Ultrasound Detection of Cleft Lip and Palate in Western Australia from 1996 to 2003. Cleft Palate Craniofac J 2017; 43:61-6. [PMID: 16405376 DOI: 10.1597/04-101r.1] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Objective To determine the frequency of detection of cleft lip with or without cleft palate and isolated cleft palate from antenatal ultrasound examinations conducted on mothers of infants born with cleft lip and/or palate and isolated cleft palate in Western Australia from 1996 to 2003. Design Review of patient records and purpose-designed questionnaire sent to parents of children born with cleft lip and/or palate and isolated cleft palate. Results There were 308 infants born with cleft lip and/or palate and isolated cleft palate in the study period. Of the 293 parents, 218 responses were available for the study (70.7%), and 2.9 ± 1.8 SD antenatal ultrasound scans were performed on 216 women. No such scans were performed on two women. Cleft lip and/or palate was detected in 22.2% of cases. There was no detection prior to 15 weeks gestational age in the 137 women screened. Between 15 and 19 weeks gestational age, 174 scans detected 30 cases. Between 20 and 29 weeks gestational age, 84 scans detected 11 cases. Between 30 and 40 weeks gestational age, 66 scans detected 7 cases. The detection rate for bilateral cleft lip and/or palate was 44.4% and for unilateral cleft lip and/or palate, 40.6%. Detection rate for isolated cleft lip was 33.3%. Antenatal ultrasound failed to detect any infants with an isolated cleft palate (n = 95). The rate of detection of cleft lip and/or palate increased through the study period. Conclusions The rate of detection of cleft lip and/or palate in Western Australia is comparable to that for referral centers worldwide and is increasing. The rate of detection of the various types of cleft anomalies using antenatal ultrasound ranged from 0% to 44%.
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Affiliation(s)
- M Hanikeri
- Princess Margaret Hospital for Children, Perth, Western Australia, Australia
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Kepli W, Dawson J, Walters M, Berry C. Identification of Metabolite Changes in Plasma Following Ticagrelor Cessation in Acute Coronary Syndrome Patients Using Metabolomics. Int J Cardiol 2017. [DOI: 10.1016/j.ijcard.2017.09.086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Chebbout R, Newton R, Walters M, Wrench I, Woolnough M. Does the addition of active body warming to in-line intravenous fluid warming prevent maternal hypothermia during elective caesarean section? A randomised controlled trial. Int J Obstet Anesth 2017; 31:37-44. [DOI: 10.1016/j.ijoa.2017.04.008] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/18/2016] [Revised: 04/10/2017] [Accepted: 04/20/2017] [Indexed: 10/19/2022]
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Ženka J, Caisová V, Uher O, Nedbalová P, Kvardová K, Masáková K, Krejčová G, Paďouková L, Jochmanová I, Wolf KI, Chmelař J, Kopecký J, Loumagne L, Mestadier J, D’agostino S, Rohaut A, Ruffin Y, Croize V, Lemaître O, Sidhu SS, Althammer S, Steele K, Rebelatto M, Tan T, Wiestler T, Spitzmueller A, Korn R, Schmidt G, Higgs B, Li X, Shi L, Jin X, Ranade K, Koeck S, Amann A, Gamerith G, Zwierzina M, Lorenz E, Zwierzina H, Kern J, Riva M, Baert T, Coosemans A, Giovannoni R, Radaelli E, Gsell W, Himmelreich U, Van Ranst M, Xing F, Qian W, Dong C, Xu X, Guo S, Shi Q, Quandt D, Seliger B, Plett C, Amberger DC, Rabe A, Deen D, Stankova Z, Hirn A, Vokac Y, Werner J, Krämer D, Rank A, Schmid C, Schmetzer H, Guerin M, Weiss JM, Regnier F, Renault G, Vimeux L, Peranzoni E, Feuillet V, Thoreau M, Guilbert T, Trautmann A, Bercovici N, Amberger DC, Doraneh-Gard F, Boeck CL, Plett C, Gunsilius C, Kugler C, Werner J, Schmohl J, Kraemer D, Ismann B, Rank A, Schmid C, Schmetzer HM, Markota A, Ochs C, May P, Gottschlich A, Gosálvez JS, Karches C, Wenk D, Endres S, Kobold S, Hilmenyuk T, Klar R, Jaschinski F, Gamerith G, Augustin F, Lorenz E, Manzl C, Hoflehner E, Moser P, Zelger B, Köck S, Amann A, Kern J, Schäfer G, Öfner D, Maier H, Zwierzina H, Sopper S, Prado-Garcia H, Romero-Garcia S, Sandoval-Martínez R, Puerto-Aquino A, Lopez-Gonzalez J, Rumbo-Nava U, Klar R, Hilmenyuk T, Jaschinski F, Coosemans A, Baert T, Van Hoylandt A, Busschaert P, Vergote I, Baert T, Van Hoylandt A, Busschaert P, Vergote I, Coosemans A, Laengle J, Pilatova K, Budinska E, Bencsikova B, Sefr R, Nenutil R, Brychtova V, Fedorova L, Hanakova B, Zdrazilova-Dubska L, Allen C, Ku YC, Tom W, Sun Y, Pankov A, Looney T, Hyland F, Au-Young J, Mongan A, Becker A, Tan JBL, Chen A, Lawson K, Lindsey E, Powers JP, Walters M, Schindler U, Young S, Jaen JC, Yin S, Chen Y, Gullo I, Gonçalves G, Pinto ML, Athelogou M, Almeida G, Huss R, Oliveira C, Carneiro F, Merz C, Sykora J, Hermann K, Hussong R, Richards DM, Fricke H, Hill O, Gieffers C, Pinho MP, Barbuto JAM, McArdle SE, Foulds G, Vadakekolathu JN, Abdel-Fatah TMA, Johnson C, Hood S, Moseley P, Rees RC, Chan SYT, Pockley AG, Rutella S, Geppert C, Hartmann A, Kumar KS, Gokilavani M, Wang S, Merz C, Richards DM, Sykora J, Redondo-Müller M, Heinonen K, Marschall V, Thiemann M, Fricke H, Gieffers C, Hill O, Zhang L, Mao B, Jin Y, Zhai G, Li Z, Wang Z, Qian W, An X, Qiao M, Zhang J, Shi Q, Weber J, Kluger H, Halaban R, Sznol M, Roder H, Roder J, Grigorieva J, Asmellash S, Oliveira C, Meyer K, Steingrimsson A, Blackmon S, Sullivan R, Boeck CL, Amberger DC, Doraneh-Gard F, Sutanto W, Guenther T, Schmohl J, Schuster F, Salih H, Babor F, Borkhardt A, Schmetzer H, Kim Y, Oh I, Park C, Ahn S, Na K, Song S, Choi Y, Fedorova L, Poprach A, Lakomy R, Selingerova I, Demlova R, Pilatova K, Kozakova S, Valik D, Petrakova K, Vyzula R, Zdrazilova-Dubska L, Aguilar-Cazares D, Galicia-Velasco M, Camacho-Mendoza C, Islas-Vazquez L, Chavez-Dominguez R, Gonzalez-Gonzalez C, Prado-Garcia H, Lopez-Gonzalez JS, Yang S, Moynihan KD, Noh M, Bekdemir A, Stellacci F, Irvine DJ, Volz B, Kapp K, Oswald D, Wittig B, Schmidt M, Chavez-Dominguez R, Aguilar-Cazares D, Prado-Garcia H, Islas-Vazquez L, Lopez-Gonzalez JS, Kleef R, Bohdjalian A, McKee D, Moss RW, Saeed M, Zalba S, Debets R, ten Hagen TLM, Javed S, Becher J, Koch-Nolte F, Haag F, Gordon EM, Sankhala KK, Stumpf N, Tseng W, Chawla SP, Suárez NG, Báez GB, Rodríguez MC, Pérez AG, García LC, Fernández DH, Pous JR, Ramírez BS, Jacoberger-Foissac C, Saliba H, Seguin C, Brion A, Frisch B, Fournel S, Heurtault B, Otterhaug T, Håkerud M, Nedberg A, Edwards V, Selbo P, Høgset A, Jaitly T, Dörrie J, Schaft N, Gross S, Schuler-Thurner B, Gupta S, Taher L, Schuler G, Vera J, Rataj F, Kraus F, Grassmann S, Chaloupka M, Lesch S, Heise C, Endres S, Kobold S, Cadilha BML, Dorman K, Heise C, Rataj F, Endres S, Kobold S. Abstracts from the 4th ImmunoTherapy of Cancer Conference. J Immunother Cancer 2017. [PMCID: PMC5374589 DOI: 10.1186/s40425-017-0219-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
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Affiliation(s)
- J Dawson
- Acute Stroke Unit, Department of Cardiovascular and Medical Sciences, Western Infirmary, Dumbarton Road, Glasgow, G11 6NT.
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Abstract
PURPOSE The UK Biobank is a large-scale biomedical resource, containing sociodemographic and medical information, including data on a previous diagnosis of stroke or transient ischaemic attack (TIA). We described these participants and their medication usage. PARTICIPANTS We identified participants who either self-reported or were identified from a nurse-led interview, having suffered a stroke or a TIA and compared them against participants without stroke ort TIA. We assessed their risk factor burden (sex, age, deprivation, waist to hip ratio (WHR), hypertension, smoking, alcohol intake, diabetes, physical exercise and oral contraception use (oral contraceptive pill, OCP)) and medication usage. FINDINGS TO DATE We studied 502,650 people (54.41% women), 6669 (1.23%) participants self-reported a stroke. The nurse-led interview identified 7669 (1.53%) people with stroke and 1781 (0.35%) with TIA. Hypertension, smoking, higher WHR, lower alcohol consumption and diabetes were all more common in people with cerebrovascular disease (p<0.0001 for each). Women with cerebrovascular disease were less likely to have taken the OCP (p=0.0002). People with cerebrovascular disease did more exercise (p=0.03). Antithrombotic medication was taken by 81% of people with stroke (both self-report and nurse-led responders) and 89% with TIA. For self-reported stroke, 63% were taking antithrombotic and cholesterol medications, 54% taking antithrombotic and antihypertensive medications and 46% taking all 3. For the nurse-led interview and TIA, these figures were 65%, 54% and 46%, and 70%, 53% and 45%, respectively. FUTURE PLANS The UK Biobank provides a large, generalisable and contemporary data source in a young population. The characterisation of the UK Biobank cohort with cerebrovascular disease will form the basis for ongoing research using this data source.
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Affiliation(s)
- J Hewitt
- Department of Geriatric Medicine, Division of Population Medicine, Cardiff University, Cardiff, UK
- Institute of Cardiovascular and Medical Sciences, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, UK
| | - M Walters
- Institute of Cardiovascular and Medical Sciences, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, UK
| | - S Padmanabhan
- Institute of Cardiovascular and Medical Sciences, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, UK
| | - J Dawson
- Institute of Cardiovascular and Medical Sciences, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, UK
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Bennett MB, Wrede C, Brown BA, Liddick SN, Pérez-Loureiro D, Bardayan DW, Chen AA, Chipps KA, Fry C, Glassman BE, Langer C, Larson NR, McNeice EI, Meisel Z, Ong W, O'Malley PD, Pain SD, Prokop CJ, Schatz H, Schwartz SB, Suchyta S, Thompson P, Walters M, Xu X. Isospin Mixing Reveals ^{30}P(p,γ)^{31}S Resonance Influencing Nova Nucleosynthesis. Phys Rev Lett 2016; 116:102502. [PMID: 27015475 DOI: 10.1103/physrevlett.116.102502] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2015] [Indexed: 06/05/2023]
Abstract
The thermonuclear ^{30}P(p,γ)^{31}S reaction rate is critical for modeling the final elemental and isotopic abundances of ONe nova nucleosynthesis, which affect the calibration of proposed nova thermometers and the identification of presolar nova grains, respectively. Unfortunately, the rate of this reaction is essentially unconstrained experimentally, because the strengths of key ^{31}S proton capture resonance states are not known, largely due to uncertainties in their spins and parities. Using the β decay of ^{31}Cl, we have observed the β-delayed γ decay of a ^{31}S state at E_{x}=6390.2(7) keV, with a ^{30}P(p,γ)^{31}S resonance energy of E_{r}=259.3(8) keV, in the middle of the ^{30}P(p,γ)^{31}S Gamow window for peak nova temperatures. This state exhibits isospin mixing with the nearby isobaric analog state at E_{x}=6279.0(6) keV, giving it an unambiguous spin and parity of 3/2^{+} and making it an important l=0 resonance for proton capture on ^{30}P.
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Affiliation(s)
- M B Bennett
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
- National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824, USA
- Joint Institute for Nuclear Astrophysics, Michigan State University, East Lansing, Michigan 48824, USA
| | - C Wrede
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
- National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824, USA
| | - B A Brown
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
- National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824, USA
| | - S N Liddick
- National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824, USA
- Department of Chemistry, Michigan State University, East Lansing, Michigan 48824, USA
| | - D Pérez-Loureiro
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
- National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824, USA
| | - D W Bardayan
- Department of Physics, University of Notre Dame, Notre Dame, Indiana 46556, USA
| | - A A Chen
- Department of Physics and Astronomy, McMaster University, Hamilton, Ontario L8S 4M1, Canada
| | - K A Chipps
- Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
- Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37996, USA
| | - C Fry
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
- National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824, USA
- Joint Institute for Nuclear Astrophysics, Michigan State University, East Lansing, Michigan 48824, USA
| | - B E Glassman
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
- National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824, USA
| | - C Langer
- National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824, USA
- Joint Institute for Nuclear Astrophysics, Michigan State University, East Lansing, Michigan 48824, USA
| | - N R Larson
- National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824, USA
- Department of Chemistry, Michigan State University, East Lansing, Michigan 48824, USA
| | - E I McNeice
- Department of Physics and Astronomy, McMaster University, Hamilton, Ontario L8S 4M1, Canada
| | - Z Meisel
- Joint Institute for Nuclear Astrophysics, Michigan State University, East Lansing, Michigan 48824, USA
- Department of Physics, University of Notre Dame, Notre Dame, Indiana 46556, USA
| | - W Ong
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
- National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824, USA
- Joint Institute for Nuclear Astrophysics, Michigan State University, East Lansing, Michigan 48824, USA
| | - P D O'Malley
- Department of Physics, University of Notre Dame, Notre Dame, Indiana 46556, USA
| | - S D Pain
- Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
| | - C J Prokop
- National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824, USA
- Department of Chemistry, Michigan State University, East Lansing, Michigan 48824, USA
| | - H Schatz
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
- National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824, USA
- Joint Institute for Nuclear Astrophysics, Michigan State University, East Lansing, Michigan 48824, USA
| | - S B Schwartz
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
- National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824, USA
- Department of Geology and Physics, University of Southern Indiana, Evansville, Indiana 47712, USA
| | - S Suchyta
- National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824, USA
- Department of Chemistry, Michigan State University, East Lansing, Michigan 48824, USA
| | - P Thompson
- Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37996, USA
| | - M Walters
- Department of Physics and Astronomy, McMaster University, Hamilton, Ontario L8S 4M1, Canada
| | - X Xu
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
- National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824, USA
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Sandhu B, Lopera J, Walters M. Efficacy and safety of vascular closure devices (VCD) after intra-arterial thrombolytic therapy in critical limb ischemia (CLI). J Vasc Interv Radiol 2016. [DOI: 10.1016/j.jvir.2015.12.258] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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Nicholls W, Jennings R, Yeung Y, Walters M, Hewitt B. Antenatal Ultrasound Detection of Cleft in Western Australia from 2003 to 2012: A Follow-Up Study. Cleft Palate Craniofac J 2015; 54:321-326. [PMID: 26506047 DOI: 10.1597/15-127] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
AIM To investigate trends in the rate of antenatal detection of cleft lip and palate (CLP) patients referred to the CLP Unit at Princess Margaret Hospital for Children in Perth, Western Australia during the period 2003-2012 and compare data with a previously published report covering the years 1996-2003. METHODS This is a single-center, retrospective survey of antenatal transabdominal ultrasound screenings of mothers of infants born between July 1, 2003 and June 30, 2012 that were referred to the CLP Unit at Princess Margaret Hospital. RESULTS Detection rates of oral clefts increased significantly when compared with outcomes reported in the same population between 1996 and 2003 (P < .05). An overall detection rate of 71.7% (165/230) was achieved for clefts involving lip and palate. Detection of isolated cleft palate (1/99) and microform (0/8) remained elusive. Most detections (76.5%) were achieved at 15 to 20 weeks of gestational age, corresponding with routine anatomical screening. A further 16.8% were detected post-20 weeks of gestation. Scans were performed by specialist obstetricians, and sonography clinics reported a detection rate of 84.6% (55/65), whereas nonspecialist clinics reported a detection rate of only 67.1% (110/164). CONCLUSION The antenatal detection rates of oral clefts involving the lip have improved to the extent that the majority of mothers are now being referred to a cleft unit in Western Australia prior to the births of their children. As a result of this improvement, antenatal counseling is now a common facet of cleft management.
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Wehliye O, Elfadl D, Walters M, Thakur K. 185. Is microdochectomy a procedure of relevance in diagnosing early breast cancer in an era of 'high-tech' diagnostics? Eur J Surg Oncol 2014. [DOI: 10.1016/j.ejso.2014.08.180] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
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Claes P, Walters M, Gillett D, Vandermeulen D, Clement JG, Suetens P. The normal-equivalent: a patient-specific assessment of facial harmony. Int J Oral Maxillofac Surg 2013; 42:1150-8. [PMID: 23582569 DOI: 10.1016/j.ijom.2013.03.011] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2012] [Revised: 03/14/2013] [Accepted: 03/15/2013] [Indexed: 10/26/2022]
Abstract
Evidence-based practice in oral and maxillofacial surgery would greatly benefit from an objective assessment of facial harmony or gestalt. Normal reference faces have previously been introduced, but they describe harmony in facial form as an average only and fail to report on harmonic variations found between non-dysmorphic faces. In this work, facial harmony, in all its complexity, is defined using a face-space, which describes all possible variations within a non-dysmorphic population; this was sampled here, based on 400 healthy subjects. Subsequently, dysmorphometrics, which involves the measurement of morphological abnormalities, is employed to construct the normal-equivalent within the given face-space of a presented dysmorphic face. The normal-equivalent can be seen as a synthetic identical but unaffected twin that is a patient-specific and population-based normal. It is used to extract objective scores of facial discordancy. This technique, along with a comparing approach, was used on healthy subjects to establish ranges of discordancy that are accepted to be normal, as well as on two patient examples before and after surgical intervention. The specificity of the presented normal-equivalent approach was confirmed by correctly attributing abnormality and providing regional depictions of the known dysmorphologies. Furthermore, it proved to be superior to the comparing approach.
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Affiliation(s)
- P Claes
- KU Leuven, Medical Imaging Research Centre, Faculty of Engineering, Department of Electrical Engineering - ESAT, Centre for Processing Speech and Images, Leuven, Belgium.
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Pereira HM, Ferrier S, Walters M, Geller GN, Jongman RHG, Scholes RJ, Bruford MW, Brummitt N, Butchart SHM, Cardoso AC, Coops NC, Dulloo E, Faith DP, Freyhof J, Gregory RD, Heip C, Hoft R, Hurtt G, Jetz W, Karp DS, McGeoch MA, Obura D, Onoda Y, Pettorelli N, Reyers B, Sayre R, Scharlemann JPW, Stuart SN, Turak E, Walpole M, Wegmann M. Essential Biodiversity Variables. Science 2013; 339:277-8. [DOI: 10.1126/science.1229931] [Citation(s) in RCA: 875] [Impact Index Per Article: 79.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
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Heesen M, Klöhr S, Rossaint R, Walters M, Straube S, van de Velde M. Insertion of an intrathecal catheter following accidental dural puncture: a meta-analysis. Int J Obstet Anesth 2012; 22:26-30. [PMID: 23219220 DOI: 10.1016/j.ijoa.2012.10.004] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/01/2011] [Revised: 10/04/2012] [Accepted: 10/08/2012] [Indexed: 11/28/2022]
Abstract
BACKGROUND Inserting an intrathecal catheter after accidental dural puncture in parturients to prevent postdural puncture headache is becoming increasingly popular. We aimed to identify relevant published articles investigating this intervention and subject data to a meta-analysis. METHODS A systematic literature search was performed, paralleled by a hand search of abstract publications. Studies that reported the dichotomous outcome parameters postdural puncture headache or need for an epidural blood patch were considered eligible. Risk ratios with 95% confidence intervals were calculated. RESULTS We identified nine reports investigating placement of intrathecal catheters after accidental dural puncture. The risk ratio for an epidural blood patch after intrathecal catheter insertion was 0.64 (95% CI 0.49-0.84, P=0.001). The risk ratio for postdural puncture headache was 0.82 (95% CI 0.67-1.01, P=0.06). DISCUSSION Inserting an intrathecal catheter significantly reduced the risk for an epidural blood patch; the incidence of postdural puncture headache was reduced but not significantly. Accidental dural puncture is a rare complication and therefore trials on intervention need to include a large number of patients which is time-consuming and costly. Intrathecal catheterisation is a promising approach for the prevention of postdural puncture headache and should be evaluated further. This intervention has additional benefits including a reduced risk of repeat dural puncture, rapid onset of action and use for anaesthesia.
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Affiliation(s)
- M Heesen
- Department of Anaesthesiology, Klinikum am Bruderwald, Bamberg, Germany.
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Ghosh SN, Hinton BB, Jones LM, Leite RJ, Mason CJ, Schaefer EJ, Walters M. Atomic nitrogen in the upper atmosphere measured by mass spectrometers. ACTA ACUST UNITED AC 2012. [DOI: 10.1029/ja073i013p04425] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Walters M, Claes P, Kakulas E, Clement JG. Robust and regional 3D facial asymmetry assessment in hemimandibular hyperplasia and hemimandibular elongation anomalies. Int J Oral Maxillofac Surg 2012; 42:36-42. [PMID: 22749574 DOI: 10.1016/j.ijom.2012.05.021] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2011] [Revised: 05/03/2012] [Accepted: 05/08/2012] [Indexed: 10/28/2022]
Abstract
Hemimandibular hyperplasia (HH) and hemimandibular elongation (HE) anomalies present with facial asymmetry and deranged occlusion. Currently, diagnosis and assessment of the facial dysmorphology is based on subjective clinical evaluation, supported by radiological scans. Advancements in objective assessments of facial asymmetry from three-dimensional (3D) facial scans facilitate a re-evaluation of the patterns of facial dysmorphology. Automated, robust and localised asymmetry assessments were obtained by comparing a 3D facial scan with its reflected image using a weighted least-squares superimposition. This robust superimposition is insensitive to severe asymmetries. This provides an estimation of the anatomical midline and a spatially dense vector map visualising localised directional differences between the left and right hemifaces. Analysis was conducted on three condylar hyperplasia phenotypes confirmed by clinical and CT evaluation: HH; HE; and hybrid phenotype. The midline extraction revealed chin point displacements in all cases. The upper lip philtrum and nose tip deviation to the affected side and a marked asymmetry of the mid face was noted in cases involving HE. Downward and medial rotation of the mandible with minor involvement of the midface was seen in the HH associated deformity. The hybrid phenotype case exhibited asymmetry features of both HH and HE cases.
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Affiliation(s)
- M Walters
- Cranio-Maxillo-Facial Unit, Princess Margaret Hospital for Children, Perth, Western Australia, Australia.
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Kamani N, Walters M, Carter S, Brochstein J, Eapen M, Levine J, Logan B, Panepinto J, Parikh S, Pulsipher M, Schultz K, Shenoy S. Unrelated Donor Cord Blood Transplantation for Children with Severe Sickle Cell Disease: Results of a Phase II Study from the Blood and Marrow Transplant Clinical Trials Network. Biol Blood Marrow Transplant 2012. [DOI: 10.1016/j.bbmt.2011.12.318] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Claes P, Walters M, Clement J. Improved facial outcome assessment using a 3D anthropometric mask. Int J Oral Maxillofac Surg 2011; 41:324-30. [PMID: 22103995 DOI: 10.1016/j.ijom.2011.10.019] [Citation(s) in RCA: 82] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2010] [Revised: 08/16/2011] [Accepted: 10/20/2011] [Indexed: 11/29/2022]
Abstract
The capacity to process three-dimensional facial surfaces to objectively assess outcomes of craniomaxillofacial care is urgently required. Available surface registration techniques depart from conventional facial anthropometrics by not including anatomical relationship in their analysis. Current registrations rely on the manual selection of areas or points that have not moved during surgery, introducing subjectivity. An improved technique is proposed based on the concept of an anthropometric mask (AM) combined with robust superimposition. The AM is the equivalent to landmark definitions, as used in traditional anthropometrics, but described in a spatially dense way using (∼10.000) quasi-landmarks. A robust superimposition is performed to align surface images facilitating accurate measurement of spatial differences between corresponding quasi-landmarks. The assessment describes magnitude and direction of change objectively and can be displayed graphically. The technique was applied to three patients, without any modification and prior knowledge: a 4-year-old boy with Treacher-Collins syndrome in a resting and smiling pose; surgical correction for hemimandibular hypoplasia; and mandibular hypoplasia with staged orthognathic procedures. Comparisons were made with a reported closest-point (CP) strategy. Contrasting outcomes were found where the CP strategy resulted in anatomical implausibility whilst the AM technique was parsimonious to expected differences.
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Affiliation(s)
- P Claes
- K.U. Leuven, Medical Imaging Research Center, Faculty of Engineering, Department of Electrical Engineering - ESAT, Center for Processing Speech and Images, Herestraat 49, Leuven, Belgium.
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Wei R, Claes P, Walters M, Wholley C, Clement JG. Augmentation of linear facial anthropometrics through modern morphometrics: a facial convexity example. Aust Dent J 2011; 56:141-7. [PMID: 21623804 DOI: 10.1111/j.1834-7819.2011.01315.x] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
BACKGROUND The facial region has traditionally been quantified using linear anthropometrics. These are well established in dentistry, but require expertise to be used effectively. The aim of this study was to augment the utility of linear anthropometrics by applying them in conjunction with modern 3-D morphometrics. METHODS Facial images of 75 males and 94 females aged 18-25 years with self-reported Caucasian ancestry were used. An anthropometric mask was applied to establish corresponding quasi-landmarks on the images in the dataset. A statistical face-space, encoding shape covariation, was established. The facial median plane was extracted facilitating both manual and automated indication of commonly used midline landmarks. From both indications, facial convexity angles were calculated and compared. The angles were related to the face-space using a regression based pathway enabling the visualization of facial form associated with convexity variation. RESULTS Good agreement between the manual and automated angles was found (Pearson correlation: 0.9478-0.9474, Dahlberg root mean squared error: 1.15°-1.24°). The population mean angle was 166.59°-166.29° (SD 5.09°-5.2°) for males-females. The angle-pathway provided valuable feedback. CONCLUSIONS Linear facial anthropometrics can be extended when used in combination with a face-space derived from 3-D scans and the exploration of property pathways inferred in a statistically verifiable way.
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Affiliation(s)
- R Wei
- Melbourne Dental School, The University of Melbourne, Victoria, Australia
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Affiliation(s)
- C Tziotzios
- Addenbrooke's Hospital, Cambridge University Hospitals NHS Foundation Trust, Hills Road, Cambridge CB2 0QQ, UK.
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Affiliation(s)
- C Tziotzios
- Division of Cardiovascular and Medical Sciences, Gardiner Institute of Medicine, Western Infirmary, Dunbarton Road, Glasgow G11 6NT, UK.
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Norquay M, Walters M, Rooney K, Gillett D. Patterns of facial growth in Western Australian children and adolescents. HOMO 2010. [DOI: 10.1016/j.jchb.2010.01.028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Walters M, Ting S, Herbinson P, Winters J. Dental development delays in children with repaired oro-facial clefts. HOMO 2010. [DOI: 10.1016/j.jchb.2010.01.044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Abstract
BACKGROUND The U.K. has 75,000 hospital admissions and over 1500 deaths from asthma annually. The British Thoracic Society (BTS) guidelines represent the recognised standard for acute asthma management. We assessed the degree of conformity with these guidelines in an acute medical unit. METHODOLOGY Data from consecutive admissions were collected prospectively. Practice was audited in October December 2005 and October 2006 - January 2007. Between cycles an educational programme was instigated, RESULTS Fifty-eight patients were included. Clinical parameters were well recorded in both cycles. Peak expiratory flow was consistently under-recorded (72% at admission; 67% in monitoring). in monitoring). Severity assessment was documented at 55% and 66% in cycle one and two respectively. Of these, the assessment was incorrect in 33% in cycle one and 21% in cycle two. All misclassifications of severity were underestimates. All life-threatening attacks were not identified. No improvement occurred between cycles. Overall, 60% of patients were inappropriately treated according to BTS guidelines, 40% due to under-treatment. Under-treatment occurred more frequently in cycle two compared with cycle one (57% vs. 24%, p = 0.007), predominantly due to inadequate treatment of life-threatening asthma. CONCLUSION Management of acute asthma in a large, urban teaching hospital is suboptimal. Educational intervention failed to improve care; more comprehensive strategies are required.
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Affiliation(s)
- H K Bayes
- Acute Medicine and Medical Specialties, Western Infirmary, Glasgow.
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Burroughs L, Storb R, Leisenring W, Torgerson T, Nemecek E, Frangoul H, Walters M, Scharenberg A, Rawlings D, Skoda-Smith S, Ochs H, Woolfrey A. Postgrafting Immune Suppression Combined With Nonmyeloablative Conditioning For Transplantation Of HLA-Matched Related Or Unrelated Hematopoetic Cell Grafts: Preliminary Results Of A Phase II Study For Treatment Of Primary Immunodeficiency Disorders. Biol Blood Marrow Transplant 2010. [DOI: 10.1016/j.bbmt.2009.12.262] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Walters M, Thomson K. Availability of anaesthetic drugs in Togo, West Africa. Acta Anaesthesiol Belg 2010; 61:183-184. [PMID: 21388076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
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Abstract
Dr John Rankin (1923-1981) is one of the many distinguished alumni of the former University Department of Materia Medica and Therapeutics, Stobhill Hospital Glasgow. While his varied international career encompassed pulmonary physiology, occupational medicine and public health, he remains best remembered in the United Kingdom for his early stroke publications. In a series of articles published 50 years ago in the Scottish Medical Journal he described early rehabilitative stroke medicine using a novel grading system. Half a century on Rankin's eponymous stroke scale has become the endpoint of choice in acute stroke trials. This paper describes Rankin's remarkable career and the legacy of his work, with a particular focus on his stroke research and grading system.
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Affiliation(s)
- T J Quinn
- Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, UK.
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McMaster SK, Paul-Clark MJ, Walters M, Fleet M, Anandarajah J, Sriskandan S, Mitchell JA. Cigarette smoke inhibits macrophage sensing of Gram-negative bacteria and lipopolysaccharide: relative roles of nicotine and oxidant stress. Br J Pharmacol 2008; 153:536-43. [PMID: 18059323 PMCID: PMC2241791 DOI: 10.1038/sj.bjp.0707595] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2007] [Revised: 06/22/2007] [Accepted: 10/30/2007] [Indexed: 11/08/2022] Open
Abstract
BACKGROUND AND PURPOSE Smoking cigarettes is a major risk factor for the development of cardiovascular and respiratory disease. Moreover, smokers are more prone to infections. This has been associated with a suppression of the immune system by smoke. However, it is not clear how cigarette smoke affects the ability of immune cells to sense pathogens. Cigarette smoke contains a large number of molecules which may mediate responses on immune cells and of these, nicotine and oxidants have both been identified as inhibitory for the sensing of bacterial lipopolysaccharide (LPS). Nitric oxide synthase (NOS) and tumour necrosis factor (TNF)-alpha are both induced in macrophages on stimulation with Gram negative bacteria or LPS. EXPERIMENTAL APPROACH We used murine macrophages stimulated with whole heat-killed bacteria or LPS. We measured output of NO (as nitrite) and TNFalpha, NOS protein by Western blotting and cellular oxidant stress. KEY RESULTS Cigarette smoke extract suppressed the ability of murine macrophages to release NO, but not TNFalpha in response to whole bacteria. Cigarette smoke extract also inhibited nitric oxide synthase II protein expression in response to LPS. The effects of cigarette smoke extract on nitrite formation stimulated by LPS were unaffected by inhibition of nicotinic receptors with alpha-bungarotoxin (100 units ml(-1)). However, the effects of cigarette smoke extract on LPS-induced nitrite formation were mimicked by hydrogen peroxide and reversed by the anti-oxidants N-acetyl cysteine and glutathione. CONCLUSIONS AND IMPLICATIONS We suggest that cigarette smoke exerts its immunosuppressive effects through an oxidant-dependent and not a nicotine-dependent mechanism.
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Affiliation(s)
- S K McMaster
- Department of Cardiothoracic Pharmacology, Unit of Critical Care Medicine, Cardiac Medicine, Royal Brompton Hospital, National Heart and Lung Institute London, UK
| | - M J Paul-Clark
- Department of Cardiothoracic Pharmacology, Unit of Critical Care Medicine, Cardiac Medicine, Royal Brompton Hospital, National Heart and Lung Institute London, UK
| | | | - M Fleet
- Department of Cardiothoracic Pharmacology, Unit of Critical Care Medicine, Cardiac Medicine, Royal Brompton Hospital, National Heart and Lung Institute London, UK
| | - J Anandarajah
- Department of Cardiothoracic Pharmacology, Unit of Critical Care Medicine, Cardiac Medicine, Royal Brompton Hospital, National Heart and Lung Institute London, UK
| | - S Sriskandan
- Department of Infectious Diseases and Immunity, Hammersmith Hospital, Imperial College London London, UK
| | - J A Mitchell
- Department of Cardiothoracic Pharmacology, Unit of Critical Care Medicine, Cardiac Medicine, Royal Brompton Hospital, National Heart and Lung Institute London, UK
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Kabbara N, Locatelli F, Rocha V, Ghavamzadeh A, Bernaudin F, Li CK, Vermylen C, Stein J, Beruchel A, Cordonnier C, Roberts I, Socié G, Gluckman E, Walters M. 6: A Multicentric Comparative Analysis of Outcomes of HLA Identical Related Cord Blood and Bone Marrow Transplantation in Patients With Beta-Thalassemia or Sickle Cell Disease. Biol Blood Marrow Transplant 2008. [DOI: 10.1016/j.bbmt.2007.12.013] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Dawson J, Weir C, Wright F, Bryden C, Aslanyan S, Lees K, Bird W, Walters M. Associations between meteorological variables and acute stroke hospital admissions in the west of Scotland. Acta Neurol Scand 2008; 117:85-9. [PMID: 18184342 DOI: 10.1111/j.1600-0404.2007.00916.x] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
BACKGROUND We combined a large clinical stroke registry with the UK Met Office database to assess the association between meteorological variables and specific clinical subtypes of acute stroke. METHODS We used negative binomial regression and Poisson regression techniques to explore the effect of meteorological values to hospital with acute stroke. Differential effects of atmospheric conditions upon stroke subtypes were also investigated. RESULTS Data from 6389 patients with acute stroke were examined. The mean age (SD) was 71.2 (13.0) years. About 5723 (90%) patients suffered ischaemic stroke of which 1943 (34%) were lacunar. Six hundred and sixty-six patients (10%) had haemorrhagic stroke. Every 1 degrees C increase in mean temperature during the preceding 24 h was associated with a 2.1% increase in ischaemic stroke admissions (P = 0.004). A fall in atmospheric pressure over the preceding 48 h was associated with increased rate of haemorrhagic stroke admissions (P = 0.045). Higher maximum daily temperature gave a greater increase in lacunar stroke admissions than in other ischaemic strokes (P = 0.035). CONCLUSION We report a measurable effect of atmospheric conditions upon stroke incidence in a temperate climate.
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Affiliation(s)
- J Dawson
- Division of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, UK
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Alem M, Cleland S, Nazir F, Small M, Walters M. Inhibition of nitric oxide increases arterial stiffness in Type 2 diabetic patients. Diabet Med 2007; 24:803-4. [PMID: 17596242 DOI: 10.1111/j.1464-5491.2007.02169.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Moss C, Walters M, Edgar J, Gilchrist K. Oral 1, ‘Colour coded’: skin pigment and young people in the West Midlands. Br J Dermatol 2007. [DOI: 10.1111/j.1365-2133.2007.07876_1.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Walters M, Blanton C, Wilson D, Young J. Criteria Led Discharge (CLD): A Pilot Study Initiative to Reduce Average Length of Stay (ALOS) for Elective Cardiac Procedural Patients. Heart Lung Circ 2007. [DOI: 10.1016/j.hlc.2007.06.452] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Peacock A, Barabash V, Gillemot F, Karditsas P, Lloyd G, Rensman JW, Tavassoli AA, Walters M. EU contributions to the ITER materials properties data assessment. Fusion Engineering and Design 2005. [DOI: 10.1016/j.fusengdes.2005.06.293] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Felton R, Joffrin E, Murari A, Zabeo L, Sartori F, Piccolo F, Farthing J, Budd T, Dorling S, McCullen P, Harling J, Dalley S, Goodyear A, Stephen A, Card P, Bright M, Lucock R, Jones E, Griph S, Hogben C, Beldishevski M, Buckley M, Davis J, Young I, Hemming O, Wheatley M, Heesterman P, Lloyd G, Walters M, Bridge R, Leggate H, Howell D, Zastrow KD, Giroud C, Coffey I, Hawkes N, Stamp M, Barnsley R, Edlington T, Guenther K, Gowers C, Popovichef S, Huber A, Ingesson C, Mazon D, Moreau D, Alves D, Sousa J, Riva M, Barana O, Bolzonella T, Valisa M, Innocente P, Zerbini M, Bosak K, Blum J, Vitale E, Crisanti F, de la Luna E, Sanchez J. Real-time measurement and control at JET experiment control. Fusion Engineering and Design 2005. [DOI: 10.1016/j.fusengdes.2005.06.286] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Colquhoun DM, Jackson R, Walters M, Hicks BJ, Goldsmith J, Young P, Strakosch C, Kostner KM. Effects of simvastatin on blood lipids, vitamin E, coenzyme Q10 levels and left ventricular function in humans. Eur J Clin Invest 2005; 35:251-8. [PMID: 15816994 DOI: 10.1111/j.1365-2362.2005.01486.x] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
BACKGROUND As statin therapy has been reported to reduce antioxidants such as vitamin E and coenzyme Q10 and there are indications that this reduction may cause impairment of left ventricular function (LVF), we studied the influence of simvastatin on LVF and serum vitamin E and coenzyme Q10 levels in humans. MATERIAL AND METHODS We assessed the effect of simvastatin on left ventricular function and coenzyme Q10 levels in 21 (11 male, 10 female) hypercholesterolaemic subjects (mean age = 56 years) with normal LVF, over a period of 6 months. Subjects were re-tested after a 1-month wash-out period (7 months). Echocardiography was performed on all subjects before commencement of simvastatin (20 mg day(-1)), and at 1, 3, 6 and 7 months after initiation of treatment. Fasting blood samples were also collected at these intervals to assess lipids, apoproteins, vitamin E and coenzyme Q10. RESULTS Serum lipids showed the expected reductions. Plasma vitamin E and coenzyme Q10 levels were reduced by 17 +/- 4% (P < 0.01) and 12 +/- 4% (P < 0.03) at 6 months. However, the coenzyme Q10/LDL-cholesterol ratio and vitamin E/LDL-cholesterol ratio increased significantly. Left ventricular ejection fraction (EF) decreased transiently after 1 month, while no significant change was observed at 3 and 6 months. Other markers of left ventricular function did not change significantly at any time point. CONCLUSION Despite reduced plasma vitamin E and coenzyme Q10, 20 mg of simvastatin therapy is associated with a significantly increased coenzyme Q10/LDL-cholesterol ratio and vitamin E/LDL-cholesterol ratio. Simvastatin treatment is not associated with impairment in left ventricular systolic or diastolic function in hypercholesterolaemic subjects after 6 months of treatment.
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Affiliation(s)
- D M Colquhoun
- Greenslopes Private Hospital and The Wesley Hospital, Brisbane, Australia.
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Walters M. The role of cord blood transplantation in thalassemia. Biol Blood Marrow Transplant 2004. [DOI: 10.1016/j.bbmt.2004.06.023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Abstract
Coronary artery aneurysms are commonly of atherosclerotic origin and are frequently asymptomatic. However, they may have varied presentations including angina, myocardial infarction, and sudden death. A case of a giant right coronary artery aneurysm presenting with acute myocardial infarction is presented, where the aneurysm appeared to be a mediastinal mass on transthoracic and transoesophageal echocardiography. Although computed tomography and magnetic resonance imaging of the heart suggested the correct diagnosis, definitive proof came from coronary angiography. Coronary artery aneurysms should be considered in the differential diagnosis of mediastinal masses.
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Affiliation(s)
- P Banerjee
- Department of Cardiology, Castle Hill Hospital, Cottingham, Kingston upon Hull, HU16 5JQ, U.
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Abstract
BACKGROUND We report a case of a 61 year old man with midbrain infarction causing Claude's syndrome attributable to stenosis of the posterior cerebral artery. CASE DESCRIPTION The patient presented with a pupil-sparing left third nerve palsy and contralateral ataxia. A background history of treated hypertension and cigarette smoking was obtained. Magnetic resonance imaging revealed an area of infarction involving the left medial midbrain. Magnetic resonance angiography revealed significant stenosis of the left posterior cerebral artery. Antiplatelet therapy was instituted and the patient made a satisfactory recovery. CONCLUSIONS This is the first reported case of Claude's syndrome arising in association with stenosis of the posterior cerebral artery. Intracranial large vessel disease should be considered as a potential aetiologic factor in patients with similar midbrain ischaemia.
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Affiliation(s)
- T Dhanjal
- University Department of Medicine, Western Infirmary, Glasgow, G11 6NT
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