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Anakwe K, Robson L, Hadley J, Buxton P, Church V, Allen S, Hartmann C, Harfe B, Nohno T, Brown A, Evans D, Francis-West P. 16 Wnt regulation of limb muscle differentiation. J Anat 2002; 201:421. [PMID: 17103759 PMCID: PMC1570949] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/12/2023] Open
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278
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van der Sande MAB, Kidd IM, Goetghebuer T, Martynoga RA, Magnusen A, Allen S, Weber MW, Fielding KL, Marchant A, Whittle HC. Severe respiratory syncytial virus infection in early life is associated with increased type 2 cytokine production in Gambian children. Clin Exp Allergy 2002; 32:1430-5. [PMID: 12372121 DOI: 10.1046/j.1365-2745.2002.01521.x] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
BACKGROUND Severe respiratory syncytial virus (RSV) infection in early childhood has been associated with subsequent wheezing and atopy. The aim of this study was to test if severe RSV infection in early life was associated with an increase in type 2 cytokine production and atopy in Gambian children 5 years later. METHODS A cohort of children with severe RSV infection during the first year of life ('cases', n = 66) and without ('controls', n = 122) was followed-up at 5 years of age. Immediate hypersensitivity to common allergens, airway reactivity, serum IgE concentration and the production of IFN-gamma, IL-5 and IL-13 by lymphocytes activated in vitro with RSV F-G or control antigens was determined. RESULTS After adjustment for confounders, cases produced significantly higher concentrations of IL-13 in response to RSV F-G and of IL-5 and IL-13 in response to tuberculin. Cases were more likely to have presented with a wheezy lower respiratory tract infection in the first 3 years of life (adjusted odds ratio = 9.9; 95% CI 1.6-61.0), but not thereafter. Cases and controls had similar skin response to allergens, airway reactivity and serum IgE concentrations. CONCLUSION Severe RSV infection in early life is associated with a higher production of type 2 cytokines in Gambian children at 5 years of age. However this does not appear to result in increased risk of atopy or clinical allergy at that age.
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Calder JDF, Solan M, Gidwani S, Allen S, Ricketts DM. Management of paediatric clavicle fractures--is follow-up necessary? An audit of 346 cases. Ann R Coll Surg Engl 2002; 84:331-3. [PMID: 12398126 PMCID: PMC2504174 DOI: 10.1308/003588402760452457] [Citation(s) in RCA: 60] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
We investigated the incidence of complications following childhood clavicle fractures and the necessity for follow-up in fracture clinic after the first orthopaedic consultation. We found that review in fracture clinic has no impact upon the outcome of clavicle fractures and complications such as non-union, mal-union or neurovascular problems are exceptionally rare. We concluded that there is no need for follow-up of children with isolated, uncomplicated clavicle fractures. These patients should be discharged after their first assessment in fracture clinic.
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Evans JSO, Allen S, Warmingham N. In-situstudies on the kinetics and mechanisms of phase transitions in ZrM 2O 8negative thermal expansion materials. Acta Crystallogr A 2002. [DOI: 10.1107/s0108767302091432] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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281
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DeLaurier A, Allen S, deFlandre C, Horton MA, Price JS. Cytokine expression in feline osteoclastic resorptive lesions. J Comp Pathol 2002; 127:169-77. [PMID: 12354528 DOI: 10.1053/jcpa.2002.0577] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Feline osteoclastic resorptive lesions (FORL) of the teeth are common in cats, and lead to pain, destruction of the periodontal ligament, and tooth loss. The expression of interleukin (IL)-1 beta and IL-6 mRNA was higher in teeth with FORL than in normal teeth (P<0.01 and P<0.001, respectively), but no such differences were found between pathological and normal gingival tissue samples. There were no differences between teeth affected with FORL and normal teeth in respect of the expression of receptor activator of NF kappa B ligand (RANKL) mRNA or osteoprotegerin (OPG) mRNA. However, OPG mRNA expression was higher in gingival tissue associated with teeth affected with FORL than in normal gingival tissue (P<0.05), whereas the reverse was true of RANKL mRNA expression (P<0.05). OPG mRNA expression was significantly higher in teeth than in femoral and alveolar bone (P<0.001). RANKL and OPG mRNAs were detected in all tissues examined. The data suggest that the elevated expression of IL-l beta and IL-6 mRNA plays a role in the mediation of osteoclast activity in advanced FORL. In contrast, OPG and RANKL do not appear to regulate osteoclasts in advanced disease. The results also suggest that OPG and RANKL mRNA play a role in mediating inflammatory responses in gingival cells, and that OPG has an inhibiting effect on tooth resorption.
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282
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Allen S, Adamson K, Clarke SE. P22. Staff radiation doses and solid radioactive waste from 131I-MIBG therapy treatments. Nucl Med Commun 2002. [DOI: 10.1097/00006231-200204000-00102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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283
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Kockel T, Allen S, Hennigs C, Langrish T. An experimental study of the equilibrium for skim milk powder at elevated temperatures. J FOOD ENG 2002. [DOI: 10.1016/s0260-8774(01)00070-x] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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284
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Westerman MP, Green D, Gilman-Sachs A, Beaman K, Freels S, Boggio L, Allen S, Schlegel R, Williamson P. Coagulation changes in individuals with sickle cell trait. Am J Hematol 2002; 69:89-94. [PMID: 11835343 DOI: 10.1002/ajh.10021] [Citation(s) in RCA: 64] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Sickle cell disorders, such as Hb SS and Hb SC, are associated with a hypercoagulable state that may contribute to the vaso-occlusive episodes observed in the disorders. To what extent increased coagulation activity occurs in individuals with sickle cell trait has had limited study. Because such information may help clarify clinical and pathologic findings that may occur in these individuals and may be useful in clarifying the hypercoagulable state in sickle cell disease, we have examined individuals with Hb AS to determine the extent that increased coagulation activity does occur. We measured d-dimers, thrombin-antithrombin (TAT) complexes, prothrombin fragment 1.2 (F1.2), absolute blood monocyte levels, proteins C and S, and isotypes of antiphospholipid antibodies in individuals with Hb AS and in matched controls (Hb AA). Results showed that d-dimers, TAT, and F1.2 were increased significantly above normal levels. Absolute blood monocyte levels were increased. The d-dimers, TAT, F1.2, and monocyte counts showed significant increasing trends through groups of increasing severity (Hb AA, Hb AS, Hb SC, and Hb SS). Our study shows that individuals with Hb AS have increased coagulation activity, with d-dimers, TAT, and F1.2 being consistent indicators. The measures of coagulation activity in Hb AS are lower than in patients with Hb SC and Hb SS disease. These results extend our previous observation that the degree of coagulation activation parallels the degree of disease severity among sickle cell genotypes. The findings suggest that monocytosis, with the possible expression of monocyte-derived tissue factor, and the associated hypercoagulable state are driven by disease severity.
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Allen S, Shea JM, Felmet T, Gadra J, Dehn PF. A kinetic microassay for glutathione in cells plated on 96-well microtiter plates. METHODS IN CELL SCIENCE : AN OFFICIAL JOURNAL OF THE SOCIETY FOR IN VITRO BIOLOGY 2002; 22:305-12. [PMID: 11549943 DOI: 10.1023/a:1017585308255] [Citation(s) in RCA: 54] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
We describe a modified enzymatic, kinetic, glutathione microassay based on the original macroassay described by Tietze and modified by Anderson. It is coupled with the Triton X-100 lysis and an acid extraction that can be performed in 96-well microtiter plates. The microassay can be read in a microplate reader equipped with a standard 405 nm filter. Intracellular glutathione levels are not significantly different when comparing the proposed Triton X-100 lysis and acid extraction method from those found with the cellular homogenization and acid extraction method typically employed. By combining a rapid sample extraction method, which can be done on the microtiter plate, with an assay based on the technology of a microplate reader, we have devised a rapid, reproducible, inexpensive and easy to use GSH microassay that can process several hundred samples daily and will be useful in studies where many replicate samples are required. We have successfully used this method to monitor glutathione status in a human cell line exposed to organochlorine pesticides and cells exposed to naturally occurring mixtures of metals extracted from aquatic sediments.
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Casals-Pascual C, Allen S, Allen A, Kai O, Lowe B, Pain A, Roberts DJ. Short report: codon 125 polymorphism of CD31 and susceptibility to malaria. Am J Trop Med Hyg 2001; 65:736-7. [PMID: 11791967 DOI: 10.4269/ajtmh.2001.65.736] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
Abstract
Platelet-endothelial cell adhesion molecule 1 (PECAM-1/CD31) has been identified as an endothelial cell receptor of Plasmodium falciparum-infected erythrocytes. The significance of adhesion of infected erythrocytes to this receptor in malaria infection has not been determined. We have therefore studied the association of the functional mutation CTG-->GTG (Leu-->Val) in codon 125 of the Cd31 gene with severe disease in 2 case-control studies of malaria in Madang Hospital, Papua New Guinea, and in Kilifi District Hospital, Kenya. We analyzed data from 442 cases and controls from Papua New Guinea and data from 396 cases and controls from Kenya. The codon 125 polymorphism was not associated with severe malaria in either study. We conclude that the presence of CTG-->GTG (Leu-->Val) substitution in codon 125 in CD31 is not associated with protection from severe malaria, and we suggest that selective forces other than malaria may maintain this high-frequency polymorphism.
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Roberts PR, Zhang Y, Zhuan S, Mowrey KA, Wallick DW, Hills DG, Betts TR, Allen S, Ewert J, Mazgalev TN, Morgan JM. Single capacitive discharge utilizing an auxiliary shock in the coronary venous system reduces the defibrillation threshold. J Interv Card Electrophysiol 2001; 5:495-503. [PMID: 11752919 DOI: 10.1023/a:1013266600072] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
UNLABELLED Auxiliary shocks (AS) from electrodes sutured to the left ventricle (LV) prior to primary biphasic shocks (PS) have been shown to reduce defibrillation thresholds (DFT). Two capacitors are required to generate these waveforms. We investigate delivery of AS from one capacitor using a novel waveform. The epicardial surface of the LV is accessed transvenously via the middle cardiac vein (MCV) avoiding a thoracotomy. METHODS A defibrillation electrode was placed in the right ventricle (RV) and superior vena cava (SVC) in 12 pigs (37+/-2 kg). A 50x1.8 mm electrode was inserted in the MCV through a guide catheter. A can was placed in the left pectoral region. A monophasic AS (100 microF, 1.5 J) was delivered along one pathway before switching to deliver a biphasic waveform (40% tilt, 2 ms phase 2) along another. DFTs (PS+AS) were assessed using a binary search. Two configurations not incorporating AS acted as controls. DFTs were compared using repeated measures analysis of variance. RESULTS DFTs of the four novel configurations (AS/PS) were: RV-->Can/MCV-->Can=14.9+/-3.7 J, MCV-->Can/RV-->Can=17.2+/-5.7 J, RV-->SVC+Can/MCV-->SVC+Can=13.4+/-4.6 J, MCV-->SVC+Can/RV-->SVC+Can=17.1+/-5.9 J. Delivering AS in the RV followed by PS in the MCV reduced the DFT (RV-->Can (19.9+/-7.3 J, P<0.01) and RV-->SVC+Can (19.2+/-6.0 J, P<0.05)). CONCLUSIONS Delivering AS prior to PS in the MCV reduces the DFT by up to a third compared to conventional configurations of RV-->Can and RV-->SVC+Can. This is possible using only a single capacitor and an entirely transvenous approach to the LV.
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Geissler HJ, Mehlhorn U, Laine GA, Allen S. The effect of cardiopulmonary lymphatic obstruction on heart and lung function. Y. Cui, J.D. Urschel, and N. J. Petrelli; Thorac Cardiov Surg 2001; 49:35-40. Thorac Cardiovasc Surg 2001; 49:384. [PMID: 11745067 DOI: 10.1055/s-2001-19007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
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289
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Silverman J, Guillen J, Price HJ, Allen S. The letter is in the mail, right? Lab Anim (NY) 2001; 30:19-20. [PMID: 11923865 DOI: 10.1038/5000129] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/24/2023]
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290
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Nash GF, Cunnick GH, Allen S, Cook C, Turner LF. Pre-operative electrocardiograph examination. Ann R Coll Surg Engl 2001; 83:381-2. [PMID: 11777129 PMCID: PMC2503691] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/23/2023] Open
Abstract
The leading cause of death following surgery is a cardiac event, and an electrocardiogram is the most common pre-operative test to investigate coronary artery disease. Fifty adults, who required an electrocardiogram, undergoing general surgical procedures, were recruited into this pilot study, which investigated the examination rate of electrocardiographs by doctors pre-operatively. Each tracing was folded in one corner and a paperclip prevented full pre-operative viewing without its removal. Results suggest that 30% of ECGs were not opened and the records of 58% patients overall had no mention of the ECG having been performed. Further analysis showed no correlation with the examination rate of the electrocardiograph with patient age or fitness. If this reflects normal clinical practice, it is sub-optimal use of resources and warrants further audit.
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Hedges D, Tate D, Miller M, Cleavinger H, Rice S, Thatcher W, Allen S, Sood S, Bigler E. Brain morphology in nonsubstance-abusing male Vietnam veterans with Posttraumatic Stress Disorder. Arch Clin Neuropsychol 2001. [DOI: 10.1093/arclin/16.8.796] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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292
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Suzuki K, Brand NJ, Allen S, Khan MA, Farrell AO, Murtuza B, Oakley RE, Yacoub MH. Overexpression of connexin 43 in skeletal myoblasts: Relevance to cell transplantation to the heart. J Thorac Cardiovasc Surg 2001; 122:759-66. [PMID: 11581610 DOI: 10.1067/mtc.2001.116210] [Citation(s) in RCA: 71] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
OBJECTIVE Skeletal myoblast transplantation is a promising strategy for treating end-stage heart failure. One potential problem in the development of functional, synchronously contracting grafts is the degree of intercellular communication between grafted myoblasts and host cardiomyocytes. Thus it is expected that enhancement of intercellular gap junction formation would result in improved efficiency of skeletal myoblast transplantation. In this study we investigated whether myoblasts overexpressing connexin 43, a major cardiac gap junction protein, would enhance this intercellular communication. METHODS AND RESULTS L6 rat skeletal myoblast cell lines overexpressing connexin 43 were generated by means of gene transfection and clonal selection. Connexin 43 overexpression of these myoblasts, which continued both in undifferentiated and differentiated states (up to 17-fold greater protein level in comparison with control-transfected myoblasts, as measured with Western blotting), was observed on cell surfaces where gap junctions should exist. Both dye microinjection and scrape loading with fluorescent dyes showed enhancement in intercellular dye transfer between connexin 43-transfected myoblasts compared with that found in control-transfected cells. Morphologically, these myoblasts fused and differentiated into multinucleated myotubes more rapidly, demonstrating a higher level of cellular creatine kinase activity as a marker of myogenic differentiation throughout the culture period compared with that of control-transfected myoblasts. CONCLUSIONS We have generated connexin 43-overexpressing skeletal myoblast cell lines that resulted in improved formation of functional intercellular gap junctions, which could be relevant to synchronous contraction of grafted myoblasts in the heart. In addition, these cells demonstrated more rapid differentiation, which would also be advantageous in a graft for transplantation to the heart.
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Feng X, Roberts CJ, Armitage DA, Davies MC, Tendler SJ, Allen S, Williams PM. Investigation of microcontact transfer of proteins from a selectively plasma treated elastomer stamp by fluorescence microscopy and force microscopy. Analyst 2001; 126:1100-4. [PMID: 11478643 DOI: 10.1039/b102269p] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Selective plasma treatment of the recessed regions of the elastomer stamps is shown to alter the resultant protein patterns. Fluorescence microscopy is demonstrated to be an excellent tool to discriminate between regions of microcontact printed fluorescent dye-labelled albumin in polystyrene. Atomic force microscopy and shear force microscopy are used to provide high-resolution images of the patterned protein layers. The formation and characteristics of the patterns formed by these alternative strategies is discussed.
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Marwick TH, Case C, Vasey C, Allen S, Short L, Thomas JD. Prediction of mortality by exercise echocardiography: a strategy for combination with the duke treadmill score. Circulation 2001; 103:2566-71. [PMID: 11382725 DOI: 10.1161/01.cir.103.21.2566] [Citation(s) in RCA: 118] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
BACKGROUND In studies generally involving short follow-up, exercise echocardiography has been shown to predict composite end points. We sought to study the prediction of mortality with this test and to devise a strategy for combination with standard exercise testing. METHODS AND RESULTS Clinical, exercise testing, and echocardiographic data were collected in 5375 patients (aged 54+/-14 years, 3880 men) undergoing exercise echocardiography. The Duke treadmill score was derived from the results of treadmill exercise testing. Resting left ventricular (LV) function and the presence and severity of ischemia were interpreted by expert observers. Follow-up at 10.6 years (mean 5.5+/-1.9 years) was complete in 5211 patients (97%). The Duke score classified 59% of patients as low risk, 39% as intermediate risk, and 2% as high risk. Resting LV dysfunction was present in 1445 patients (27%), and the exercise echocardiogram was abnormal in 2525 patients (47%). Death occurred in 649 patients (12%). Over the first 6 years of follow-up, those with normal exercise echocardiograms had a mortality of 1% per year. Ischemia was an independent predictor of mortality. In sequential Cox models, the predictive power of clinical data was strengthened by adding the Duke score, resting LV function, and the results of exercise echocardiography. Exercise echocardiography was able to substratify patients with intermediate-risk Duke scores into groups with a yearly mortality of 2% to 7%. CONCLUSIONS A normal exercise echocardiogram confers a low risk of death, and positive results are an independent predictor of death; ischemia is incremental to other data. This test may be particularly useful in patients with intermediate-risk Duke treadmill scores.
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Khattab A, Ali I, Dils R, Kerr D, Jenkinson D, Allen S, Rana M. Nitric oxide synthase and carotid artery plaque morphology. ATHEROSCLEROSIS SUPP 2001. [DOI: 10.1016/s1567-5688(01)80276-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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296
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Abstract
Two neonates presented with sustained, monomorphic VT. Transesophageal electrophysiological studies demonstrated that the VTs were initiated with burst atrial pacing in one and noninducible in the other, and both terminated with burst atrial pacing and with adenosine. Oral verapamil suppressed the VTs in both. Following discontinuation of verapamil at 1 year of age, both children remain free of tachycardia recurrence at 3 and 4 years of age. These cases suggest that cAMP-mediated triggered activity may be responsible for some VTs in infancy.
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Abstract
We present case reports of three recent patients to reinforce the argument that upper gastrointestinal series is the method of choice with which to document malrotation. It has been 9 years since there was a major discussion of this subject in the literature. Ultrasonography cannot confidently exclude malrotation. Radiographic study with contrast continues to be the best diagnostic tool.
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298
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Burcombe R, Wilson G, Richman P, Allen S, Wright D, Pittam M, Makris A. Comparison of clinical, radiological and pathological assessment of response to neoadjuvant chemotherapy for primary breast cancer. Eur J Cancer 2001. [DOI: 10.1016/s0959-8049(01)81153-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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299
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Abstract
Nursing Standard recently published a literature search that explored different models of integrated nursing and more traditional models of community nursing in primary care (Baileff 2000). Models of change for implementing integrated nursing were also examined. This article aims to explore the development of an integrated nursing team in a healthcare centre in Northampton.
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Roth DL, Stewart KE, Clay OJ, van Der Straten A, Karita E, Allen S. Sexual practices of HIV discordant and concordant couples in Rwanda: effects of a testing and counselling programme for men. Int J STD AIDS 2001; 12:181-8. [PMID: 11231872 DOI: 10.1258/0956462011916992] [Citation(s) in RCA: 100] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
As part of a longitudinal investigation, the husbands and cohabiting male partners of 684 Rwandan women were recruited to participate in an HIV testing and counselling programme. All of the women and 256 of the men (37%) had previously received standard testing and generic counselling services. In this project, all of the men participated in an extensive, male-focused counselling programme. This included 428 men who were receiving testing and counselling for the first time. Interview responses indicated that rates of condom use during sexual intercourse increased dramatically at the one-year follow-up assessment for the serodiscordant couples. This effect was especially strong for couples whose male partners were receiving testing and counselling for the first time. Rates of condom use also increased substantially in seroconcordant HIV-positive couples whose partners had both been tested previously. Women in couples with at least one seropositive partner reported lower rates of coercive sex by their male partners after they completed the counselling programme. Male-focused and couple-focused testing and counselling programmes appear to be effective in reducing risky sexual behaviours in heterosexual couples, even if one or both partners have received testing and counselling services previously.
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