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Chia S, Bryce C, Pansegrau G, Macpherson N, Ellard S, Jepson D, Yu C, Nuraney S, Attwell A, Hayes M, Kennecke H, Gelmon K. Phase II trial of neoadjuvant chemotherapy of sequential FEC100 followed by docetaxel, carboplatin and trastuzumab (TCH) for HER-2 over-expressing locally advanced breast cancer (LABC): a multi-centre study from British Columbia. Cancer Res 2009. [DOI: 10.1158/0008-5472.sabcs-5118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Abstract #5118
Background: The role of trastuzumab either concurrent or sequential with adjuvant chemotherapy have clearly demonstrated significant benefits in early stage HER-2 positive breast cancer. There is now an accumulation of phase II and III trials also demonstrating improved pathological complete responses (pCR) in HER-2 positive breast cancer with neoadjuvant trastuzumab concurrent with chemotherapy. The number of patients on these trials are significantly fewer, and many of these trials are a mixture of primary operable and LABC. We have completed a multi-centre phase II trial of neoadjuvant chemotherapy and trastuzumab in HER-2 positive LABC.
 Methods: Women with HER-2 positive (IHC 3+ or FISH+) stage IIB-IIIC breast cancer were enrolled. Treatment consisted of 4 cycles of FEC100 (5-FU 500 mg/m2, epirubicin 100 mg/m2, cyclophosphamide 500 mg/m2) followed by 4 cycles of TCH (Docetaxel 75 mg/m2, carboplatin AUC 6, trastuzumab 8 mg/kg loading then 6 mg/kg q3 weekly). Trastuzumab was also continued adjuvantly for 9 months following chemotherapy and surgery. Cardiac monitoring every 3 months was mandated. A correlative translational component with baseline and interval biopsies and serum collection was also performed.
 Results: A total of 30 patients (3 stage IIB; 14 IIIA; 10 IIIB and 3 IIIC) over a 3 year time period in 4 centres were accrued. Median age was 49 years (26-77 years). 60% of tumours were ER negative. There was one clinical CHF and 2 asymptomatic falls in LVEF requiring early discontinuation of trastuzumab. There were 3 episodes (10%) of febrile neutropenia. Seven patients underwent adjuvant radiotherapy prior to surgery. The pCR rate (breast and axilla) for the entire study population was 60% (18/30). There have been 3 recurrences so far (all biopsy proven) – of which 2 were brain metastases only. Further details on toxicity and changes in LVEF will be presented.
 Conclusions: This multi-centre phase II trial clearly demonstrates significant activity (pCR 60%) for neoadjuvant anthracyclines followed by concurrent taxane, platinum and trastuzumab in a HER-2 positive LABC population. Overall the treatment regimen was well tolerated. Brain metastases however appear to be a common site of relapse in this high risk patient population and further treatment strategies directed at this site should be investigated.
Citation Information: Cancer Res 2009;69(2 Suppl):Abstract nr 5118.
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Affiliation(s)
- S Chia
- 1 Medical Oncology, British Columbia Cancer Agency, Vancouver, BC, Canada
| | - C Bryce
- 1 Medical Oncology, British Columbia Cancer Agency, Vancouver, BC, Canada
| | - G Pansegrau
- 2 Medical Oncology, British Columbia Cancer Agency, Surrey, BC, Canada
| | - N Macpherson
- 3 Medical Oncology, British Columbia, Victoria, BC, Canada
| | - S Ellard
- 4 Medical Oncology, British Columbia, Kelowna, BC, Canada
| | - D Jepson
- 1 Medical Oncology, British Columbia Cancer Agency, Vancouver, BC, Canada
| | - C Yu
- 1 Medical Oncology, British Columbia Cancer Agency, Vancouver, BC, Canada
| | - S Nuraney
- 1 Medical Oncology, British Columbia Cancer Agency, Vancouver, BC, Canada
| | - A Attwell
- 3 Medical Oncology, British Columbia, Victoria, BC, Canada
| | - M Hayes
- 5 Pathology, British Columbia Cancer Agency, Vancouver, BC, Canada
| | - H Kennecke
- 1 Medical Oncology, British Columbia Cancer Agency, Vancouver, BC, Canada
| | - K Gelmon
- 1 Medical Oncology, British Columbia Cancer Agency, Vancouver, BC, Canada
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Mulvaney C, Kendrick D, Towner E, Brussoni M, Hayes M, Powell J, Robertson S, Ward H. Fatal and non-fatal fire injuries in England 1995-2004: time trends and inequalities by age, sex and area deprivation. J Public Health (Oxf) 2008; 31:154-61. [PMID: 19074453 DOI: 10.1093/pubmed/fdn103] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
AIM To examine time trends and deprivation gradients in fire-related deaths and injuries. METHODS A cross-sectional study and time trend analysis using data on fire casualties in England between 1995 and 2004 obtained from the Department for Communities and Local Government. Injury rates were calculated assuming a Poisson distribution. Incidence rate ratios (IRRs) were calculated to compare changes in deprivation gradients over time. RESULTS There were significant reductions in fatal and non-fatal fire injuries in children (fatal injuries IRR chi(2)(1) = 11.18, P < 0.001; non-fatal injuries IRR chi(2)(2) = 61.44, P < 0.001), adults (fatal injuries IRR chi(2)(1) = 15.99, P < 0.001; non-fatal injuries IRR chi(2)(2) = 183.25, P < 0.001) and older people (fatal injuries IRR chi(2)(1) = 56.88, P < 0.001; non-fatal injuries IRR chi(2)(2) = 54.09, P < 0.001) between 1995 and 2004. Adult and child fire deaths were most commonly caused by smokers' materials (e.g. cigarettes, cigars and tobacco), and cigarette lighters and matches, respectively. Cooking appliances caused most non-fatal fire injuries. Injury rates increased with increasing levels of deprivation and deprivation gradients did not change over 10 years. CONCLUSIONS Fire prevention interventions should promote the safe use of cooking and heating appliances and the responsible use of smokers' materials, lighters and matches, and should target those at greater risk of fire, including the socially disadvantaged.
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Affiliation(s)
- C Mulvaney
- Division of Primary Care, University of Nottingham, 13th Floor, Tower Building, Nottingham NG7 2RD, UK.
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153
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Wagner KI, Gallagher SK, Hayes M, Lawrence BA, Zedler JB. Wetland Restoration in the New Millennium: Do Research Efforts Match Opportunities? Restor Ecol 2008. [DOI: 10.1111/j.1526-100x.2008.00433.x] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.4] [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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154
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Connolly D, Dwyer P, Fagan J, Hayes M, Ryan E, Costello E, Kilroy A, More S. Tuberculosis in alpaca (Lama pacos) on a farm in Ireland. 2. Results of an epidemiological investigation. Ir Vet J 2008; 61:533-7. [PMID: 21851720 PMCID: PMC3113878 DOI: 10.1186/2046-0481-61-8-533] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Tuberculosis (TB), due to infection with Mycobacterium bovis was diagnosed in a flock of alpaca in Ireland in 2004. An epidemiological investigation was conducted to identify the risk of TB for farmed alpaca where TB is endemic, the origin of the infection, the potential for alpaca-to-alpaca transmission and appropriate control measures. The investigation focused on the alpaca flock (including the farm, animal movements and breeding, feeding and flock health practice), the disease episode (including animal disease events and subsequent control measures) and TB infection risk in the locality. The TB risk to alpaca is high in areas where infection is endemic in cattle and badgers and where biosecurity is inadequate. It is most likely that the source of infection for the alpaca was a local strain of M. bovis, present in cattle in this area since at least 2001. Genotyping of isolates identified a single variable number tandem repeat (VNTR) profile in both cattle and alpaca in this region. Although a tuberculous badger was also removed from the vicinity, bacterial isolation was not attempted. On this farm, infection in alpaca was probably derived from a common source. Alpaca-to-alpaca transmission seems unlikely. Two broad control strategies were implemented, aimed at the rapid removal of infected (and potentially infectious) animals and the implementation of measures to limit transmission. Tests that proved useful in detecting potentially-infected animals included measurement of the albumin-to-globulin ratio and regular body condition scoring. Skin testing was time consuming and unproductive, and early detection of infected animals remains a challenge. The flock was managed as a series of separate groupings, based on perceived infection risk. No further TB cases have been detected.
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Abstract
Merkel cell tumour is a rare primary malignant tumour of the skin that can affect the lids and periocular region. It has a high rate of recurrence and metastasis following surgical excision and an overall mortality rate of 20-33%. Clinically, it is difficult to distinguish from other malignancies and the diagnosis requires careful histological analysis and immunocytochemical staining. A case of Merkel cell tumour affecting the lids and originally misdiagnosed is presented. Correct diagnosis was made only after the appearance of a second Merkel cell tumour on the contralateral lid. The pathogenesis, clinical progression, histology and management of this difficult condition are reviewed.
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Affiliation(s)
- S Thakur
- Sellyoak Hospital, Birmingham, UK
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157
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Fazio G, Pipitone S, Garaffa D, Sutera L, D'Angelo L, Lombardi R, Hayes M, Novo G, Novo S. Right lobar pulmonitis: a possible cause of lone atrial fibrillation. Minerva Cardioangiol 2008; 56:378-379. [PMID: 18509300] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
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158
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Sabbas A, Nedialkova L, Trichter S, Kulidzhanov F, Hayes M, Parashar B, Patel P, Nori D. SU-GG-T-298: Dose Verification of Mammosite Treatments with MOSFET Dosimeters. Med Phys 2008. [DOI: 10.1118/1.2962050] [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: 11/07/2022] Open
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159
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Lyons RA, Towner E, Christie N, Kendrick D, Jones SJ, Hayes M, Kimberlee R, Sarvotham T, Macey S, Brussoni M, Sleney J, Coupland C, Phillips C. The Advocacy in Action Study a cluster randomized controlled trial to reduce pedestrian injuries in deprived communities. Inj Prev 2008; 14:e1. [DOI: 10.1136/ip.2007.017632] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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160
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Auret FD, Meyer WE, Rensburg PJJV, Hayes M, Nel JM, Wenckstern HV, Hochmuth H, Biehne G, Lorenz M, Grundmann M. Electronic properties of shallow level defects in ZnO grown by pulsed laser deposition. ACTA ACUST UNITED AC 2008. [DOI: 10.1088/1742-6596/100/4/042038] [Citation(s) in RCA: 4] [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: 11/12/2022]
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161
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Durack J, Bloom A, Golden J, Leard L, Hayes M, Kerlan R, Gordon R, LaBerge J. Abstract No. 309: Dilation of Airway Stenoses Following Lung Transplantation: Impact of Balloon Size on 6-Month Patency and Safety. J Vasc Interv Radiol 2008. [DOI: 10.1016/j.jvir.2007.12.355] [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: 10/22/2022] Open
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162
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Abstract
Thyroglossal duct cyst (TDC) is a congenital lesion which usually manifests as an enlarging painless neck mass in a child or young adult. We highlight an unusual presentation of TDC in an adult which developed after radiation therapy to the neck. We discuss the probable sequence of events and emphasize the need for radiologists, radiation oncologists and the surgeons to be aware of this entity when evaluating patients after radiation therapy.
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Affiliation(s)
- A Srinivasan
- Department of Radiology, Division of Neuroradiology, University of Michigan health system, Ann Arbor, Michigan 48109, USA.
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163
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Du Plessis J, Andronikou S, Hayes M, Mapukata A. Radiological features of simple (unicameral) bone cysts. SA J Radiol 2007. [DOI: 10.4102/sajr.v11i3.36] [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: 11/01/2022] Open
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164
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Schultze OC, Greyling J, Hayes M, Andronikou S. Talking PACS: Part 1 - What is PACS? SA J Radiol 2007. [DOI: 10.4102/sajr.v11i3.31] [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: 11/01/2022] Open
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165
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Hayes M, Andronikou S, Mackenzie C, Du Plessis J, George R, Theron S. Postinfective physeal bars - MRI features and choice of management. SA J Radiol 2007. [DOI: 10.4102/sajr.v11i3.30] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
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166
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Abstract
OBJECTIVES To bring together scientific evidence of what works in injury prevention with the knowledge and experience of practitioners, using a case study of smoke alarm installation from England. DESIGN There is good evidence of strategies to reduce injuries but less is known about the art of translating those strategies to implementation in real-world settings. England's Health Development Agency developed a structured process applicable to many public health fields, which integrates practitioner knowledge into the evidence base and reflects local contexts. The multistep process includes convening structured field meetings with local practitioners and policy makers, which focus on a mapping exercise of strategies, policies, targets, and funding streams related to childhood injury prevention, and barriers and facilitators relating to implementation of specific interventions. SETTING Meetings were held in six venues across England with 98 participants from a range of professional backgrounds and sectors. RESULTS The collective knowledge of participants provided many local insights unlikely to emerge in conventional research. Discussion topics covered key partners and sectors to include when planning a program; national policies and programs that could be used to drive the agenda; potential sources of funding; the importance of providing and installing appropriate smoke alarms; targeting of programs; and suggestions for gaining access to hard-to-reach populations. CONCLUSION This methodology represents an efficient way of gaining insight necessary for successful implementation of evidence based programs. It may be particularly useful in lower and middle income countries, serving to translate evidence into the local contexts and circumstances within which practitioners operate.
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Affiliation(s)
- M Brussoni
- Centre for Child and Adolescent Health, University of the West of England, Bristol, UK.
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167
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Hayes M, Stanton C, Slattery H, O'Sullivan O, Hill C, Fitzgerald GF, Ross RP. Casein fermentate of Lactobacillus animalis DPC6134 contains a range of novel propeptide angiotensin-converting enzyme inhibitors. Appl Environ Microbiol 2007; 73:4658-67. [PMID: 17483275 PMCID: PMC1932838 DOI: 10.1128/aem.00096-07] [Citation(s) in RCA: 97] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2007] [Accepted: 04/23/2007] [Indexed: 11/20/2022] Open
Abstract
This work evaluated the angiotensin-converting-enzyme (ACE)-inhibitory activities of a bovine sodium caseinate fermentate generated using the proteolytic capabilities of the porcine small intestinal isolate Lactobacillus animalis DPC6134 (NCIMB deposit 41355). The crude 10-kDa L. animalis DPC6134 fermentate exhibited ACE-inhibitory activity of 85.51% (+/-15%) and had a 50% inhibitory concentration (IC50) of 0.8 mg protein/ml compared to captopril, which had an IC50 value of 0.005 mg/ml. Fractionation of the crude L. animalis DPC6134 fermentate by membrane filtration and reversed-phase high-performance liquid chromatography (HPLC) generated three bioactive fractions from a total of 72 fractions. Fractions 10, 19, and 43 displayed ACE-inhibitory activity percentages of 67.53 (+/-15), 83.71 (+/-19), and 42.36 (+/-11), respectively, where ACE inhibition was determined with 80 microl of the fractions with protein concentrations of 0.5 mg/ml. HPLC and mass spectrometry analysis identified 25 distinct peptide sequences derived from alpha-, beta-, and kappa-caseins. In silico predictions, based on the C-terminal tetrapeptide sequences, suggested that peptide NIPPLTQTPVVVPPFIQ, corresponding to beta-casein f(73-89); peptide IGSENSEKTTMP, corresponding to alpha(s1)-casein f(201212); peptide SQSKVLPVPQ, corresponding to beta-casein f(166-175); peptide MPFPKYPVEP, corresponding to beta-casein f(124133); and peptide EPVLGPVRGPFP, corresponding to beta-casein f(210-221), contained ACE-inhibitory activities. These peptides were chosen for chemical synthesis to confirm the ACE-inhibitory activity of the fractions. Chemically synthesized peptides displayed IC50 values in the range of 92 microM to 790 microM. Additionally, a simulated gastrointestinal digestion confirmed that the ACE-inhibitory 10-kDa L. animalis DPC6134 fermentation was resistant to a cocktail of digestive enzymes found in the gastrointestinal tract.
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Affiliation(s)
- M Hayes
- Teagasc, Biotechnology Centre, Moorepark, Fermoy, County Cork, Ireland
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168
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Riske F, Smith M, Menon M, Goetschalck S, Goidsenhoven IV, Krul A, Pimpaneau V, Renaers I, Van Tichelt N, Van Houdt K, Hayes M, Lawrence C, Bigelow R, Schroeder J. A potential generic downstream process using Cibracon Blue resin at very high loading capacity produces a highly purified monoclonal antibody preparation from cell culture harvest. J Chromatogr B Analyt Technol Biomed Life Sci 2007; 848:108-15. [PMID: 16893691 DOI: 10.1016/j.jchromb.2006.06.034] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2006] [Revised: 06/07/2006] [Accepted: 06/24/2006] [Indexed: 11/26/2022]
Abstract
The use of a dye-ligand chromatography for the purification of monoclonal antibody (MAb) from cell culture and other feed streams has been largely overlooked in large scale production. Cibracon Blue dye (CB), a polycyclic anionic ligand, interacts with protein through a specific interaction between the dye, acting as a mimic of NAD+ and NADP+, or through non-specific electrostatic, hydrophobic, and other forces. In this paper, a CB resin was used to effectively and efficiently separate an IgG4 MAb from host and process impurities following the capture of the MAb on a Protein-A (PA) column. The CB unit operation, challenged at </=180 g MAb/L of resin with the PA eluate, reduced BSA (1-2 log), host cell protein (HCP; 2-3 log), MAb oligomer (31-85%), fragment (from approximately 0.8% to <0.1%), and other undesired MAb species. Purity, as measured by non-reducing (NR) SDS-PAGE, was improved 33-85%, to 92-99.5% overall (>99% by reducing SDS-PAGE). A facile three column scalable production scheme, employing CB as the second column in the process was used to generate highly purified MAb from cell culture harvest derived from two media of very different compositions. Free CB dye was </=1 ng/mg in MAb preparations purified through the three column process and then concentrated and buffer exchanged into the appropriate buffer using tangential flow filtration (TFF).
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Affiliation(s)
- F Riske
- Purification Development, Genzyme Corporation, Framingham, MA 01701, USA.
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169
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Sutherland IA, Booth AJ, Brown L, Kemp B, Kidwell H, Games D, Graham AS, Guillon GG, Hawes D, Hayes M, Janaway L, Lye GJ, Massey P, Preston C, Shering P, Shoulder T, Strawson C, Wood P. INDUSTRIAL SCALE-UP OF COUNTERCURRENT CHROMATOGRAPHY. J LIQ CHROMATOGR R T 2007. [DOI: 10.1081/jlc-100104362] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
- I. A. Sutherland
- a Brunel Institute for Bioengineering, Brunel University , Uxbridge , UB8 3PH , UK
| | - A. J. Booth
- b Dept of Biochemical Engineering , UCL Advanced Centre for Biochemical Engineering , Torrington Place, London , WC1E 7JE , UK
| | | | | | - H. Kidwell
- c Chemistry Department , University of Wales Swansea , Singleton Park, Swansea , SA2 8PP , UK
| | - D. Games
- c Chemistry Department , University of Wales Swansea , Singleton Park, Swansea , SA2 8PP , UK
| | | | - G. G. Guillon
- d University of Pau , ENSGTI, Rue Jules Ferny, Pau , 64000 , France
| | - D. Hawes
- a Brunel Institute for Bioengineering, Brunel University , Uxbridge , UB8 3PH , UK
| | - M. Hayes
- e Medicines Research Centre , Glaxo Wellcome, Bioprocessing Unit, Stevenage , UK
| | - L. Janaway
- a Brunel Institute for Bioengineering, Brunel University , Uxbridge , UB8 3PH , UK
| | - G. J. Lye
- b Dept of Biochemical Engineering , UCL Advanced Centre for Biochemical Engineering , Torrington Place, London , WC1E 7JE , UK
| | | | | | | | | | | | - P. Wood
- a Brunel Institute for Bioengineering, Brunel University , Uxbridge , UB8 3PH , UK
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170
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Abstract
A recent study reported that 77% of patients with septic shock had relative adrenal insufficiency. However, all patients were mechanically ventilated and received high-dose inotropes. In addition, at least 24% had prior exposure to etomidate, a drug known to suppress adrenal function. We studied the incidence of relative adrenal insufficiency in etomidate-naïve patients with septic shock by analysing the adrenal response to high-dose short synacthen test in 113 consecutive patients from three university-affiliated intensive care units in Australia. Patients were allocated to three groups according to severity of illness and inclusion criteria of the trial of low dose hydrocortisone supplementation using information from patient records. Of the 113 patients, 98 had septic shock (Group A). The incidence of relative adrenal insufficiency in this subpopulation was 24.5%. Eighty-one per cent of patients with septic shock were mechanically ventilated (Group B). In this group, the incidence of relative adrenal insufficiency was 27.8%. Only 38 of the 98 patients with septic shock (39%) fulfilled inclusion criteria for the steroid supplementation trial (Group C). In this group, the incidence of relative adrenal insufficiency was only 34.2%. In all groups its presence was associated with a higher mortality. We conclude that the incidence of relative adrenal insufficiency in etomidate-naive septic shock patients was lower than observed in the steroid supplementation trial. Further, in those who fulfilled inclusion criteria for the trial, the incidence of relative adrenal insufficiency was half that reported by the trial. Our observations raise concerns about the generalizability of the findings of the above trial to etomidate-naïve patients.
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Affiliation(s)
- D Jones
- Department of Intensive Care, Royal Perth Hospital, Western Australia
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171
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Abstract
Currently, Portland Cement (PC) is used extensively in the solidification/stabilisation of a wide variety of wastes. In the nuclear industry, low and intermediate level radioactive wastes are encapsulated or immobilised within composite PC cement systems based on high replacement with blast furnace slag or fly ash. However, the high alkalinity of these PC-based systems will corrode reactive metals found in some wastes releasing hydrogen and forming expansive corrosion products. Alternative cement systems could provide a different hydration chemistry, which would allow wastes containing these metals to be encapsulated with lower reactivity. Calcium sulfoaluminate (CS A) cement is one such cement. It combines economy of cost and low emission of CO(2) with rapid strength gain and compatibility with other construction materials. Hydration provides an internal pore solution where the pH is considerably lower than that of PC. The main hydration product, ettringite, can incorporate a number of ions into its crystal structure, making it an ideal candidate for waste immobilisation. This paper details some results from a commercial CS A system that examines aspects of mixing, hydration of different formulations and aluminium corrosion behaviour. The fluidity of mixes can be adjusted by changing the formulations. All designed mixes were set within 24 h with little bleeding and the pH values were in the range of 10-11.5. In addition, a significant reduction in Al corrosion was observed compared to a composite OPC system. Although these results provide encouragement for the idea that CS A cement can provide a possible alternative to PC in the immobilisation of difficult and reactive wastes, further investigation is needed.
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Affiliation(s)
- Q Zhou
- Immobilisation Science Laboratory, Department of Engineering Materials, University of Sheffield, UK.
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172
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Goldkorn A, Hann B, Hayes M, Drummond DC, Kirpotin DB, Peth K, Marks JD, Blackburn EH, Park JW. Systemic telomerase gene therapy delivered via targeted lipidic nanoparticles. J Clin Oncol 2006. [DOI: 10.1200/jco.2006.24.18_suppl.13025] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
13025 Background: Most human cancers possess elevated telomerase activity that promotes proliferation. We developed 2 telomerase-targeting gene constructs: telomerase RNA containing a mutated template sequence (MT-hTer), and short interfering RNA (siRNA) targeting endogenous wild type telomerase RNA. When co-expressed in cancer cell lines and xenografts, MT-hTer/siRNA synergizes to cause rapid cell death (Li, S et al. Cancer Research 2004). Here, we tested the in vivo efficacy of MT-hTer/siRNA delivered systemically via antibody-targeted lipidic nanoparticles in a breast cancer metastasis model. Methods: Nude mice received intracardiac injection of luc+MCF7-C18 breast carcinoma cells ectopically overexpressing HER2 and luciferase. After 3 days, the mice were treated with a single 100 μg i.v. injection of either MT-hTer/siRNA-GFP or control (GFP-only) plasmid formulated into lipid-DNA nanoparticles conjugated to an internalizing anti-HER2 single chain antibody (Genosphere, TM) (Hayes, M et al. Gene Therapy 2005). A third group received saline (PBS) as a vehicle control. Cancer progression was monitored non-invasively via biophotonic imaging (Xenogen) of tumor luciferase signal. Results: By week 2 the PBS control group showed luciferase signal elevation that increased exponentially during the study. Similarly, the GFP-only control group developed significant luciferase signal elevation by week 3, with continued rise at all subsequent time points. In contrast, the MT-hTer/siRNA-GFP group experienced a decreased luciferase signal by week 2, which remained consistently low throughout the experimental time course. There were no observed treatment-related toxicities. Conclusions: In pilot in vivo studies, telomerase therapy dramatically inhibited tumor formation in mice after systemic delivery with cancer-targeting lipid-DNA nanoparticles. Expanded preclinical studies are underway. [Table: see text]
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Affiliation(s)
- A. Goldkorn
- University of California San Francisco, San Francisco, CA; Hermes Biosciences, Inc., South San Francisco, CA
| | - B. Hann
- University of California San Francisco, San Francisco, CA; Hermes Biosciences, Inc., South San Francisco, CA
| | - M. Hayes
- University of California San Francisco, San Francisco, CA; Hermes Biosciences, Inc., South San Francisco, CA
| | - D. C. Drummond
- University of California San Francisco, San Francisco, CA; Hermes Biosciences, Inc., South San Francisco, CA
| | - D. B. Kirpotin
- University of California San Francisco, San Francisco, CA; Hermes Biosciences, Inc., South San Francisco, CA
| | - K. Peth
- University of California San Francisco, San Francisco, CA; Hermes Biosciences, Inc., South San Francisco, CA
| | - J. D. Marks
- University of California San Francisco, San Francisco, CA; Hermes Biosciences, Inc., South San Francisco, CA
| | - E. H. Blackburn
- University of California San Francisco, San Francisco, CA; Hermes Biosciences, Inc., South San Francisco, CA
| | - J. W. Park
- University of California San Francisco, San Francisco, CA; Hermes Biosciences, Inc., South San Francisco, CA
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Hayes M, Ross RP, Fitzgerald GF, Hill C, Stanton C. Casein-derived antimicrobial peptides generated by Lactobacillus acidophilus DPC6026. Appl Environ Microbiol 2006; 72:2260-4. [PMID: 16517684 PMCID: PMC1393211 DOI: 10.1128/aem.72.3.2260-2264.2006] [Citation(s) in RCA: 150] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2005] [Accepted: 12/24/2005] [Indexed: 11/20/2022] Open
Abstract
Three peptides produced by a Lactobacillus acidophilus DPC6026 fermentation of sodium caseinate and showing antibacterial activity against pathogenic strains Enterobacter sakazakii ATCC 12868 and Escherichia coli DPC5063 were characterized. These peptides were all generated from bovine alpha(s1)-casein and identified as IKHQGLPQE, VLNENLLR, and SDIPNPIGSENSEK. These peptides may have bioprotective applicability and potential use in milk-based formula, which has been linked to E. sakazakii infection in neonates.
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Affiliation(s)
- M Hayes
- Teagasc, Moorepark Food Research Centre, Fermoy, Co. Cork, Ireland
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George R, Grobbelaar M, Du Plessis J, Hayes M. Paragangliomas of the head and neck. SA J Radiol 2006. [DOI: 10.4102/sajr.v10i3.165] [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: 11/01/2022] Open
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175
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176
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Abstract
Mixing in microscale flows with rotating chains of paramagnetic particles can be enhanced by adjusting the ratio of viscous to magnetic forces so that chains dynamically break and reform. Lattice Boltzmann (LB) simulations were used to calculate the interaction between the fluid and suspended paramagnetic particles under the influence of a rotating magnetic field. Fluid velocities obtained from the LB simulations are used to solve the advection diffusion equation for massless tracer particles. At relatively high Mason numbers, small chains result in low edge velocities, and hence mixing is slower than at other Mason numbers. At low Mason numbers, long, stable chains form and produce little mixing toward the center of the chains. A peak in mixing rate is observed when chains break and reform. The uniformity of mixing is greater at higher Mason numbers because more small chains result in a larger number of small mixing areas.
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Affiliation(s)
- R Calhoun
- Department of Mechanical and Aerospace Engineering, Arizona State University, Tempe, Arizona 85287, USA
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Yadav A, Calhoun R, Phelan PE, Vuppu AK, Garcia AA, Hayes M. Dynamics of rotating paramagnetic particles simulated by lattice Boltzmann and particle dynamics methods. ACTA ACUST UNITED AC 2006; 153:145-50. [PMID: 17187446 DOI: 10.1049/ip-nbt:20060009] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [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: 11/20/2022]
Abstract
Novel biochemical sensors consisting of rotating chains of microscale paramagnetic particles have been proposed that would enable convenient, sensitive analyte detection. Predicting the dynamics of these particles is required to optimise their design. The results of lattice Boltzmann (LB) and particle dynamics (PD) simulations are reported, where the LB approach provides a verified solution of the complete Navier-Stokes equations, including the hydrodynamic interactions among the particles. On the other hand, the simpler PD approach neglects hydrodynamic interactions, and does not compute the fluid motion. It is shown that macroscopic properties, like the number of aggregated particles, depend only on the drag force and not on the total hydrodynamic force, making PD simulations yield reasonably accurate predictions. Relatively good agreement between the LB and PD simulations, and qualitative agreement with experimental data, are found for the number of aggregated particles as a function of the Mason number. The drag force on a rotating cylinder is significantly different from that on particle chains calculated from both simulations, demonstrating the different dynamics between the two cases. For microscopic quantities like the detailed force distributions on each particle, the complete Navier-Stokes solution, here represented by the LB simulation, is required.
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Affiliation(s)
- A Yadav
- Department of Mechanical & Aerospace Engineering, Arizona State University, Tempe, AZ 85287-6106, USA
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Hayes M, Smart CJ, Mead GM. Inguinal orchidectomy. Ann R Coll Surg Engl 2005; 87:492. [PMID: 16263032 PMCID: PMC1964111 DOI: 10.1308/003588405x71216] [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] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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179
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Hayes M, Katovic NM, Donovan D, Emmons S, Benavides M, Montalto M, Ryan CW, Liu G, Beer TM. Acupuncture for hot flashes in prostate cancer patients. J Clin Oncol 2005. [DOI: 10.1200/jco.2005.23.16_suppl.8160] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
- M. Hayes
- Oregon Health & Science Univ, Portland, OR
| | | | - D. Donovan
- Oregon Health & Science Univ, Portland, OR
| | - S. Emmons
- Oregon Health & Science Univ, Portland, OR
| | | | | | - C. W. Ryan
- Oregon Health & Science Univ, Portland, OR
| | - G. Liu
- Oregon Health & Science Univ, Portland, OR
| | - T. M. Beer
- Oregon Health & Science Univ, Portland, OR
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180
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Chia S, Ragaz J, Makretsov N, Cheang M, Hayes M, Gilks B, Harris A, Spinelli J, Gelmon K, Olivotto I, Huntsman D. Carbonic anhydrase IX (CA IX) as a predictive marker for benefit from post-mastectomy adjuvant locoregional radiation (RT): Results from the British Columbia (BC) Randomized Radiation Trial. J Clin Oncol 2005. [DOI: 10.1200/jco.2005.23.16_suppl.571] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
- S. Chia
- British Columbia Cancer Agency, Vancouver, BC, Canada; McGill Univ, Montreal, PQ, Canada; Genetic Pathology Evaluation Ctr, Vancouver, BC, Canada; Oxford Univ, Oxford, United Kingdom; British Columbia Cancer Agency, Victoria, BC, Canada
| | - J. Ragaz
- British Columbia Cancer Agency, Vancouver, BC, Canada; McGill Univ, Montreal, PQ, Canada; Genetic Pathology Evaluation Ctr, Vancouver, BC, Canada; Oxford Univ, Oxford, United Kingdom; British Columbia Cancer Agency, Victoria, BC, Canada
| | - N. Makretsov
- British Columbia Cancer Agency, Vancouver, BC, Canada; McGill Univ, Montreal, PQ, Canada; Genetic Pathology Evaluation Ctr, Vancouver, BC, Canada; Oxford Univ, Oxford, United Kingdom; British Columbia Cancer Agency, Victoria, BC, Canada
| | - M. Cheang
- British Columbia Cancer Agency, Vancouver, BC, Canada; McGill Univ, Montreal, PQ, Canada; Genetic Pathology Evaluation Ctr, Vancouver, BC, Canada; Oxford Univ, Oxford, United Kingdom; British Columbia Cancer Agency, Victoria, BC, Canada
| | - M. Hayes
- British Columbia Cancer Agency, Vancouver, BC, Canada; McGill Univ, Montreal, PQ, Canada; Genetic Pathology Evaluation Ctr, Vancouver, BC, Canada; Oxford Univ, Oxford, United Kingdom; British Columbia Cancer Agency, Victoria, BC, Canada
| | - B. Gilks
- British Columbia Cancer Agency, Vancouver, BC, Canada; McGill Univ, Montreal, PQ, Canada; Genetic Pathology Evaluation Ctr, Vancouver, BC, Canada; Oxford Univ, Oxford, United Kingdom; British Columbia Cancer Agency, Victoria, BC, Canada
| | - A. Harris
- British Columbia Cancer Agency, Vancouver, BC, Canada; McGill Univ, Montreal, PQ, Canada; Genetic Pathology Evaluation Ctr, Vancouver, BC, Canada; Oxford Univ, Oxford, United Kingdom; British Columbia Cancer Agency, Victoria, BC, Canada
| | - J. Spinelli
- British Columbia Cancer Agency, Vancouver, BC, Canada; McGill Univ, Montreal, PQ, Canada; Genetic Pathology Evaluation Ctr, Vancouver, BC, Canada; Oxford Univ, Oxford, United Kingdom; British Columbia Cancer Agency, Victoria, BC, Canada
| | - K. Gelmon
- British Columbia Cancer Agency, Vancouver, BC, Canada; McGill Univ, Montreal, PQ, Canada; Genetic Pathology Evaluation Ctr, Vancouver, BC, Canada; Oxford Univ, Oxford, United Kingdom; British Columbia Cancer Agency, Victoria, BC, Canada
| | - I. Olivotto
- British Columbia Cancer Agency, Vancouver, BC, Canada; McGill Univ, Montreal, PQ, Canada; Genetic Pathology Evaluation Ctr, Vancouver, BC, Canada; Oxford Univ, Oxford, United Kingdom; British Columbia Cancer Agency, Victoria, BC, Canada
| | - D. Huntsman
- British Columbia Cancer Agency, Vancouver, BC, Canada; McGill Univ, Montreal, PQ, Canada; Genetic Pathology Evaluation Ctr, Vancouver, BC, Canada; Oxford Univ, Oxford, United Kingdom; British Columbia Cancer Agency, Victoria, BC, Canada
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Abstract
Obesity prevalence rates are increasing worldwide and one prevailing hypothesis is that physical activity levels of modern humans are markedly reduced compared to those of our Paleolithic ancestors. We examine this hypothesis by deriving relative activity energy expenditure from available doubly labeled water and indirect calorimetry data in free-ranging non-human mammals. Our results, given the constraints posed by limited data availability, suggest that a low physical activity level, much less than that observed in free-ranging non-human mammals or highly active humans, is present in modern adult humans living within advanced settings. Our observations lend support to the hypothesis that low activity-related energy expenditure levels contribute to the rising worldwide prevalence of obesity.
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Affiliation(s)
- M Hayes
- Department of Medicine, Obesity Research Center, St Luke's/Roosevelt Hospital, Columbia University, College of Physicians and Surgeons, New York, NY 10025, USA
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Sapra P, Griffiths G, Hayes M, Stein R, Pickett J, Govindan S, Sheerin A, Hansen H, Horak I, Goldenberg D. 305 In vitro evaluation of a doxorubicin-antibody conjugate, on non-Hodgkin's lymphoma and multiple myeloma cell lines. EJC Suppl 2004. [DOI: 10.1016/s1359-6349(04)80313-6] [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] Open
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183
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Lee SW, Cao M, Sajid S, Hayes M, Choi L, Rother C, de León R. The dual-wave bolus feature in continuous subcutaneous insulin infusion pumps controls prolonged post-prandial hyperglycaemia better than standard bolus in Type 1 diabetes. Diabetes Nutr Metab 2004; 17:211-6. [PMID: 15575341] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/01/2023]
Abstract
The dual-wave bolus delivers a combination of an immediate normal pre-meal insulin bolus (approximately 3 min) followed by an extended (or square-wave) bolus that is evenly delivered over several hr as programmed by the patient. The purpose of this study was to compare post-prandial glycaemic excursions following a high-fat meal after administration of insulin by normal vs dual-wave bolus. During this prospective, cross-over, repeated measures study, subjects with diabetes and treated with insulin pump therapy were evaluated using the continuous glucose monitoring system (CGMS) following three combinations of meal and bolus type. A control meal or a high-fat meal was given in place of the evening meal on three separate occasions and comparisons were made between: a) the control meal with normal insulin bolus delivery, b) the high-fat meal with normal insulin bolus delivery, and c) the high-fat meal with dual-wave insulin bolus delivery. Although mean baseline CGMS values were similar in each of the three combinations of meal and bolus type (p=0.54) and in the three hr immediately following the meal (p=0.64, p=0.83, p=1.0), when compared to the control meal/normal bolus and high-fat meal/dual-wave bolus combinations, CGMS profiles disclosed significantly elevated post-prandial glucose in hr 5 through 14 (p<0.05) following the high-fat/normal bolus combination. Prolonged post-prandial glycaemic excursions are identified using the CGMS. Treating post-prandial hyperglycaemia with dual-wave insulin delivery may help manage chronic hyperglycaemia in patients with diabetes.
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Affiliation(s)
- S W Lee
- Department of Medicine, Loma Linda Medical Center's Diabetes Treatment Center, Loma Linda, CA 92354, USA.
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184
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Abrams PL, Egorin MJ, Ramanathan RK, Parise RA, Lagattuta TF, Hayes M, Peng B, Ivy SP, Murgo A, Remick S. Intrapatient consistency of imatinib pharmacokinetics (PK) in patients (pts) with advanced cancers. J Clin Oncol 2004. [DOI: 10.1200/jco.2004.22.90140.2081] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
- P. L. Abrams
- University of Pittsburgh Cancer Institute, Pittsburgh, PA; Novartis Pharmaceuticals Corporation, East Hanover, NJ; National Cancer Institute/CTEP, Rockville, MD; Comp Cancer Ctr at Case Western Reserve University, Cleveland, OH
| | - M. J. Egorin
- University of Pittsburgh Cancer Institute, Pittsburgh, PA; Novartis Pharmaceuticals Corporation, East Hanover, NJ; National Cancer Institute/CTEP, Rockville, MD; Comp Cancer Ctr at Case Western Reserve University, Cleveland, OH
| | - R. K. Ramanathan
- University of Pittsburgh Cancer Institute, Pittsburgh, PA; Novartis Pharmaceuticals Corporation, East Hanover, NJ; National Cancer Institute/CTEP, Rockville, MD; Comp Cancer Ctr at Case Western Reserve University, Cleveland, OH
| | - R. A. Parise
- University of Pittsburgh Cancer Institute, Pittsburgh, PA; Novartis Pharmaceuticals Corporation, East Hanover, NJ; National Cancer Institute/CTEP, Rockville, MD; Comp Cancer Ctr at Case Western Reserve University, Cleveland, OH
| | - T. F. Lagattuta
- University of Pittsburgh Cancer Institute, Pittsburgh, PA; Novartis Pharmaceuticals Corporation, East Hanover, NJ; National Cancer Institute/CTEP, Rockville, MD; Comp Cancer Ctr at Case Western Reserve University, Cleveland, OH
| | - M. Hayes
- University of Pittsburgh Cancer Institute, Pittsburgh, PA; Novartis Pharmaceuticals Corporation, East Hanover, NJ; National Cancer Institute/CTEP, Rockville, MD; Comp Cancer Ctr at Case Western Reserve University, Cleveland, OH
| | - B. Peng
- University of Pittsburgh Cancer Institute, Pittsburgh, PA; Novartis Pharmaceuticals Corporation, East Hanover, NJ; National Cancer Institute/CTEP, Rockville, MD; Comp Cancer Ctr at Case Western Reserve University, Cleveland, OH
| | - S. P. Ivy
- University of Pittsburgh Cancer Institute, Pittsburgh, PA; Novartis Pharmaceuticals Corporation, East Hanover, NJ; National Cancer Institute/CTEP, Rockville, MD; Comp Cancer Ctr at Case Western Reserve University, Cleveland, OH
| | - A. Murgo
- University of Pittsburgh Cancer Institute, Pittsburgh, PA; Novartis Pharmaceuticals Corporation, East Hanover, NJ; National Cancer Institute/CTEP, Rockville, MD; Comp Cancer Ctr at Case Western Reserve University, Cleveland, OH
| | - S. Remick
- University of Pittsburgh Cancer Institute, Pittsburgh, PA; Novartis Pharmaceuticals Corporation, East Hanover, NJ; National Cancer Institute/CTEP, Rockville, MD; Comp Cancer Ctr at Case Western Reserve University, Cleveland, OH
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185
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Affiliation(s)
- Wilbert M Gesler
- Department of Geography, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA.
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186
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Affiliation(s)
- F. D. Auret
- Centre for Electronic Materials, Devices and Nanostructures, UMIST, Manchester, M60 1QD, UK
| | - L. Wu
- Physics Department, University of Pretoria, Pretoria 0002, South Africa
| | - W. E. Meyer
- Physics Department, University of Pretoria, Pretoria 0002, South Africa
| | - J. M. Nel
- Physics Department, University of Pretoria, Pretoria 0002, South Africa
| | - M. J. Legodi
- Physics Department, University of Pretoria, Pretoria 0002, South Africa
| | - M. Hayes
- Physics Department, University of Pretoria, Pretoria 0002, South Africa
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187
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Gray PH, Paterson S, Finch G, Hayes M. Cot-nursing using a heated, water-filled mattress and incubator care: a randomized clinical trial. Acta Paediatr 2004; 93:350-5. [PMID: 15124838] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 04/29/2023]
Abstract
AIMS To evaluate the thermal responses and weight gain in preterm infants nursed in a cot on a heated, water-filled mattress (HWM) compared with infants receiving care in an air-heated incubator and to compare mothers' stress, anxiety levels and perceptions of their infants in the two groups. METHODS Stable preterm infants weighing 1300 to 1500 g were enrolled, being randomly allocated to either the study group (n = 41) receiving care in a cot on an HWM, or the control group (n = 33) receiving incubator care. The mean daily body temperature and episodes of cold stress and hyperthermia were recorded. Weight gain (g kg(-1) body weight d(-1)) was also calculated. The mothers completed questionnaires on their perceptions of their infants, and their anxiety and stress levels before randomization, and 2-3 wk later during the trial. RESULTS The mean body temperature was similar for the first week of the trial (study group 36.9 degrees C vs controls 36.9 degrees C). There were no significant differences in the incidence of cold stress, while more hyperthermic episodes were seen in the study group (p = 0.03). There were no significant differences in weight gain during the first (study group 21.4 g vs controls 19.6 g) or second weeks of the trial (study group 20.5 g vs controls 19.2 g). Neonatal morbidity did not differ between the groups. There were no differences in mothers' perceptions of their babies, or feelings of stress or anxiety. CONCLUSION There were no differences between infants cot-nursed on an HWM and those receiving incubator care, with the exception of episodes of high temperature. The results suggest that the HWM may be used safely for low-weight preterm infants.
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Affiliation(s)
- P H Gray
- Division of Neonatology, University of Queensland, Mater Mothers' Hospital, Brisbane, Queensland, Australia.
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188
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Vainshelboim A, Hayes M, Momoh KS, Korotkov K. Observing the behavioral response of human hair to a specific external stimulus using dynamic gas discharge visualization. J Cosmet Sci 2004; 55 Suppl:S91-104. [PMID: 15645105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/01/2023]
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189
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Munns CFJ, Glass IA, Flanagan S, Hayes M, Williams B, Berry M, Vickers D, O'Rourke P, Rao E, Rappold GA, Hyland VJ, Batch JA. Familial growth and skeletal features associated with SHOX haploinsufficiency. J Pediatr Endocrinol Metab 2003; 16:987-96. [PMID: 14513875 DOI: 10.1515/jpem.2003.16.7.987] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.7] [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: 11/15/2022]
Abstract
This study was designed to determine the intrafamilial effect of SHOX haploinsufficiency on stature, by comparing the growth and phenotype of 26 SHOX haploinsufficient individuals with 45 relatives and population standards. It confirmed that SHOX haploinsufficiency leads to growth restriction from birth to final height. Compared to unaffected siblings, the SHOX haploinsufficient cohort was 2.14 SDS (3.8 cm) shorter at birth and 2.1 SDS shorter through childhood. At final height females were 2.4 SDS (14.4 cm) shorter and males 0.8 SDS (5.3 cm) shorter than normal siblings. The family height analysis suggests that the effect of SHOX haploinsufficiency on growth may have been previously underestimated at birth and overestimated in males at final height. SHOX haploinsufficiency leads to short arms in 92%, bilateral Madelung deformity in 73% and short stature in 54%. Females were more severely affected than males. We conclude that SHOX is a major growth gene and that mutations are associated with a broad range of phenotype.
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Affiliation(s)
- C F J Munns
- Endocrine and Diabetes Research Unit, Royal Children's Hospital Foundation Research Centre, Department of Paediatrics and Child Health, University of Queensland, Brisbane, Australia.
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Breen JP, Burch R, Gomez-Lopez J, Griffin K, Hayes M. Selective hydrogenation of cinnamaldehyde to cinnamyl alcohol using an Ir/C catalyst: Influence of reaction conditions. Catalysis in Application 2003. [DOI: 10.1039/9781847550347-00045] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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191
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Hatchette TF, Hayes M, Merry H, Schlech WF, Marrie TJ. The effect of C. burnetii infection on the quality of life of patients following an outbreak of Q fever. Epidemiol Infect 2003; 130:491-5. [PMID: 12825734 PMCID: PMC2869986] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/03/2023] Open
Abstract
Sixty-six cases of Q fever were diagnosed in people affiliated with a goat-farming co-operative in rural Newfoundland in the spring of 1999. Follow-up studies which included administration of the Short Form 36 Health Survey (SF-36) were conducted 3 and 27 months after the initial outbreak to prospectively follow the effects of acute Q fever on the quality of life of the participants. Twenty-seven months after the outbreak 51% of those who had Q fever reported persistent symptoms including seven participants whose symptoms had initially resolved 3 months after the outbreak. Individuals with Q fever had significantly lower scores on five of the eight scales in the SF-36 and lower scores in the mental and physical summary scales compared to uninfected controls. Although this supports the hypothesis of a 'post Q fever fatigue syndrome' (QFFS), further study is warranted.
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Affiliation(s)
- T F Hatchette
- Queen Elizabeth II Health Sciences Centre, Dalhousie University, Halifax, Nova Scotia, Canada
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192
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Ragaz J, Lippman M, Van Rijn M, Brodie A, Jelovac D, Nielsen T, Dedhar S, Huntsman D, Hayes M, Dunn S, Cheung M, Sledge G, Chia S, Harris A, Bajdik C, Speers C, Spinelli J, Hayes D. 2. Survival Impact of HER-2/Neu, Cox-2, Urokinase Plasminogen Activator (upa), Cytokeratin 17/5,6 and other Markers with Long-Term Outcome of Early Breast Cancer. Report from the British Columbia Tissue Micro-Array Project (BCTMAP). Breast Cancer Res Treat 2003. [DOI: 10.1023/a:1023979226714] [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: 11/12/2022]
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193
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Kunert HW, Dale D, Hayes M, Malherbe J, Kononenko VK, Barnas J. Hydrogen implantation effect on optical properties of GaAs doping superlattices. Cryst Res Technol 2003. [DOI: 10.1002/crat.200310042] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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194
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195
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Fernández JR, Heo M, Heymsfield SB, Pierson RN, Pi-Sunyer FX, Wang ZM, Wang J, Hayes M, Allison DB, Gallagher D. Is percentage body fat differentially related to body mass index in Hispanic Americans, African Americans, and European Americans? Am J Clin Nutr 2003; 77:71-5. [PMID: 12499325 DOI: 10.1093/ajcn/77.1.71] [Citation(s) in RCA: 100] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
BACKGROUND Limited research has been done to explore differences between ethnic groups, including Hispanic Americans (HAs), in the association between percentage body fat (PBF) and body mass index (BMI; in kg/m(2)); the numbers of HAs are increasing in the US population. OBJECTIVE We investigated whether the relation between PBF and BMI in adult HAs differed from that of African Americans (AAs) and European Americans (EAs). DESIGN We used a multiple regression model in which PBF measured with dual energy X-ray absorptiometry was predicted by the reciprocal of BMI (1/BMI; in m(2)/kg) in a sample of 487 men (n(EA) = 192, n(AA) = 148, and n(HA) = 147) and 933 women (n(EA) = 448, n(AA) = 304, and n(HA) = 181). RESULTS For men, our results showed no significant differences between HAs and EAs, AAs and EAs, or HAs and AAs in the slope of the line relating 1/BMI to PBF. In women, there were significant differences in PBF as predicted by BMI between HAs and EAs (P < 0.002) and AAs and HAs (P = 0.020), but not between AAs and EAs. When PBF was estimated on the basis of predicting equations, the trend of the predicted PBF value in women differed according to ethnic group and BMI category. At a BMI < 30, HAs tended to have more body fat than did EAs and AAs, and at a BMI > 35, EAs tended to have more body fat than did the other groups. CONCLUSIONS Our results show that the relation between PBF and BMI in HA women differs from that of EA and AA women.
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Affiliation(s)
- José R Fernández
- Obesity Research Center, St Luke's-Roosevelt Hospital and the Institute of Human Nutrition, Columbia University College of Physicians and Surgeons, New York, USA.
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196
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Rivers DB, Ruggiero L, Hayes M. The ectoparasitic wasp Nasonia vitripennis (Walker) (Hymenoptera: Pteromalidae) differentially affects cells mediating the immune response of its flesh fly host, Sarcophaga bullata Parker (Diptera: Sarcophagidae). J Insect Physiol 2002; 48:1053-1064. [PMID: 12770028 DOI: 10.1016/s0022-1910(02)00193-2] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
In this study, we examined cellular immune responses in the flesh fly, Sarcophaga bullata, when parasitized by the ectoparasitoid Nasonia vitripennis. In unparasitized, young pharate adults and third instar, wandering larvae of S. bullata, four main hemocyte types were identified by light microscopy: plasmatocytes, granular cells, oenocytoids, and pro-hemocytes. Parasitism of young pharate adults had a differential effect on host hemocytes; oenocytoids and pro-hemocytes appeared to be unaltered by parasitism, whereas adhesion and spreading behavior were completely inhibited in plasmatocytes and granular cells by 60 min after oviposition. The suppression of spreading behavior in granular cells lasted the duration of parasitism. Plasmatocytes were found to decline significantly during the first hour after parasitism and this drop was attributed to cell death. Melanization and clotting of host hemolymph did not occur in parasitized flies, or the onset of both events was retarded by several hours in comparison to unparasitized pharate adults. Hemocytes from envenomated flies were altered in nearly identical fashion to that observed for natural parasitism; the total number of circulating hemocytes declined sharply by 60 min post-envenomation, the number of plasmatocytes declined but not granular cells, and the ability of plasmatocytes and granular cells to spread when cultured in vitro was abolished within 1 h. As with parasitized hosts, the decrease in plasmatocytes was due to cell death, and inhibition of spreading lasted until the host died. Isolated crude venom also blocked adhesion and spreading of these hemocyte types in vitro. Thus, it appears that maternally derived venom disrupts host immune responses almost immediately following oviposition and the inhibition is permanent. The possibility that this ectoparasite disables host defenses to afford protection to feeding larvae and adult females is discussed.
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Affiliation(s)
- D B. Rivers
- Department of Biology, Loyola College in Maryland, 4501 North Charles Street, 21210, Baltimore, MD, USA
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197
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Flanagan SF, Munns CFJ, Hayes M, Williams B, Berry M, Vickers D, Rao E, Rappold GA, Batch JA, Hyland VJ, Glass IA. Prevalence of mutations in the short stature homeobox containing gene (SHOX) in Madelung deformity of childhood. J Med Genet 2002; 39:758-63. [PMID: 12362035 PMCID: PMC1734979 DOI: 10.1136/jmg.39.10.758] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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198
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Hayes M, Chustek M, Wang Z, Gallagher D, Heshka S, Spungen A, Bauman W, Heymsfield SB. DXA: potential for creating a metabolic map of organ-tissue resting energy expenditure components. Obes Res 2002; 10:969-77. [PMID: 12376576 DOI: 10.1038/oby.2002.132] [Citation(s) in RCA: 52] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
OBJECTIVE This study tested the hypothesis that tissue-organ components can be derived from DXA measurements, and in turn, resting energy expenditure (REE) can be calculated from the summed heat productions of DXA-estimated brain, skeletal muscle mass (SM), adipose tissue, bone, and residual mass (RM). RESEARCH METHODS AND PROCEDURES Subjects were divided into five groups of adults <50 years of age. The specific metabolic rate of RM was developed in 13 Group I healthy subjects and a DXA-brain mass prediction formula in 52 Group II subjects. SM, adipose tissue, and bone models were developed based on earlier reports. The composite REE prediction model (REEp) was tested in 154 Group III subjects in whom REEp was compared with measured REE (REEm). Features of the developed model were determined in 94 normal-weight men and women (Group IV) and seven spinal cord injury patients and healthy matched controls (Group V). RESULTS REEp and REEm in Group III were highly correlated (y = 0.85x + 233; r = 0.82, p < 0.001), and no bias was detected. Both REEm (mean +/- SD, 1,579 +/- 324 kcal/d) and REEp (1,585 +/- 316 kcal/d) were also highly correlated (r values = 0.85 to 0.98; p values < 0.001) and provided similar group values to REE estimated by the Harris-Benedict equations (1,597 +/- 279 kcal/d) and Wang's composite fat-free mass-based REE equation (1,547 +/- 248 kcal/d). New insights into the sources and distribution of REE were provided by analysis of the demonstration groups. DISCUSSION This approach offers a new practical and educational opportunity to examine REE in subject groups using modeling strategies that reveal the magnitude and distribution of fundamental somatic heat-producing units.
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Affiliation(s)
- Matthew Hayes
- Department of Medicine, Obesity Research Center, St. Luke's/Roosevelt Hospital, Columbia University, College of Physicians and Surgeons, New York, New York 10025, USA
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Bakhtiar R, Khemani L, Hayes M, Bedman T, Tse F. Quantification of the anti-leukemia drug STI571 (Gleevec) and its metabolite (CGP 74588) in monkey plasma using a semi-automated solid phase extraction procedure and liquid chromatography-tandem mass spectrometry. J Pharm Biomed Anal 2002; 28:1183-94. [PMID: 12049982 DOI: 10.1016/s0731-7085(02)00080-8] [Citation(s) in RCA: 59] [Impact Index Per Article: 2.7] [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]
Abstract
Signal Transduction Inhibitor 571 (STI571, formerly known as CGP 57148B) or Gleevec received fast track approval by the US Food and Drug Administration (FDA) for treatment of chronic myeloid leukemia (CML). STI571 (Gleevec) is a revolutionary and promising new oral therapy for CML, which functions at the molecular level with high specificity. The dramatic improvement in efficacy compared with existing treatments prompted an equally profound increase in the pace of development of Gleevec. The duration from first dose in man to completion of the New Drug Application (NDA) filing was less than 3 years. In addition, recently, FDA approved Gleevec for the treatment of gastrointestinal stromal tumor (GIST). In order to support all toxicokinetic (TK) studies with sufficient speed to meet various target dates, a semi-automated procedure using solid phase extraction (SPE) was developed and validated. A Packard Multi-Probe I and a SPE step in a 96-well plate format were utilized. A 3M Empore octyl (C(8))-standard density 96-well plate was used for plasma sample extraction. A Sciex API 3000 triple quadrupole mass spectrometer with an atmospheric pressure chemical ionization (APCI) interface operated in positive ion mode was used for detection. Lower limits of quantification of 1.00 and 2.00 ng/ml were attained for STI571 and its metabolite, CGP 74588, respectively. The method proved to be rugged and allowed the simultaneous quantification of STI571 and CGP 74588 in monkey plasma. Herein, assay development, validation, and representative concentration-time profiles obtained from TK studies are presented.
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Affiliation(s)
- R Bakhtiar
- Department of Drug Metabolism and Pharmacokinetics, Novartis Institute for Biomedical Research, East Hanover, NJ 07936, USA.
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Bakhtiar R, Lohne J, Ramos L, Khemani L, Hayes M, Tse F. High-throughput quantification of the anti-leukemia drug STI571 (Gleevec) and its main metabolite (CGP 74588) in human plasma using liquid chromatography-tandem mass spectrometry. J Chromatogr B Analyt Technol Biomed Life Sci 2002; 768:325-40. [PMID: 11888061 DOI: 10.1016/s1570-0232(01)00611-0] [Citation(s) in RCA: 119] [Impact Index Per Article: 5.4] [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: 12/01/2022]
Abstract
The signal transduction inhibitor STI571 (formerly known as CGP 57148B) or Gleevec received fast track approval by the US Food and Drug Administration (FDA) for treatment of chronic myeloid leukemia (CML). STI571 is a revolutionary and promising new oral therapy for CML, which functions at the molecular level with high specificity. The dramatic improvement in efficacy compared to existing treatments prompted an equally profound increase in the pace of development of Gleevec. The duration from first dose in man to completion of the New Drug Application (NDA) filing was approximately 2.6 years. In order to support all pharmacokinetics studies with sufficient speed to meet various target dates, a semi-automated procedure using protein precipitation was developed and validated. A Tomtec Quadra 96 (Model 320) and a protein precipitation step in a 96-well plate format were utilized. A Sciex API 3000 triple quadrupole mass spectrometer with an atmospheric pressure chemical ionization interface operated in positive ion mode was used for detection. The method proved to be rugged and allowed the simultaneous quantification of STI571 and its main metabolite (CGP 74588) in human plasma. Herein, assay development, validation, and representative concentration-time profiles obtained from clinical studies are presented.
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Affiliation(s)
- R Bakhtiar
- Department of Drug Metabolism and Pharmacokinetics, Novartis Institute for Biomedical Research, East Hanover, NJ 07936, USA.
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