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McGillis Hall L, Pink G, Jones C, Leatt P, Gates M, Peterson J. Is the grass any greener? Canada to United States of America nurse migration. Int Nurs Rev 2009; 56:198-205. [DOI: 10.1111/j.1466-7657.2008.00706.x] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Godden S, Haines D, Konkol K, Peterson J. Improving passive transfer of immunoglobulins in calves. II: Interaction between feeding method and volume of colostrum fed. J Dairy Sci 2009; 92:1758-64. [DOI: 10.3168/jds.2008-1847] [Citation(s) in RCA: 67] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Li PJ, Stagnitti F, Xiong X, Peterson J. Temporal and spatial distribution patterns of heavy metals in soil at a long-standing sewage farm. ENVIRONMENTAL MONITORING AND ASSESSMENT 2009; 149:275-282. [PMID: 18288581 DOI: 10.1007/s10661-008-0201-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/08/2007] [Accepted: 01/14/2008] [Indexed: 05/25/2023]
Abstract
Australia's oldest sewage farm in Werribee, Victoria is a significant public asset with more than 110 years of history and it now treats half of Melbourne's municipal sewage. Currently three parallel methods, i.e. lagoon, land filtration and grass filtration were used to treat raw sewage from Melbourne. The land filtration area is soil-pasture-cattle complex system and it operates on 3,633 ha of permanent pastures for livestock grazing. The land filtration area by intermittent irrigation of sewage occurs during the months of high evaporation from October to April. The monitoring study was aimed to find out the temporal and spatial distribution patterns of heavy metals in the soil at land filtration area in the long standing sewage farm. The monitoring results show that the temporal distribution patterns of Cd, Cr, Cu, Ni, Pb and Zn follow the exponential regression equations in soil layer 0-20 cm and the linear equations in soil layer 20-40 cm respectively. The accumulated concentrations of heavy metals in the soils are high enough for the land to be considered contaminated. The exponential trend of heavy metal of soil in land filtration area should be controlled immediately by soil remediation or by change of treatment process of flow configuration.
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Boutin-Foster C, Ogedegbe G, Peterson J, Briggs WM, Allegrante JP, Charlson ME. Psychosocial mediators of the relationship between race/ethnicity and depressive symptoms in Latino and white patients with coronary artery disease. J Natl Med Assoc 2008; 100:849-55. [PMID: 18672563 DOI: 10.1016/s0027-9684(15)31380-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
BACKGROUND The high prevalence of depressive symptoms in patients with coronary artery disease has been well documented. However, little is known about the prevalence and correlates of depressive symptoms in Latino patients with coronary artery disease. PURPOSE Among Latino and white patients who had percutaneous transluminal coronary angioplasty (PTCA), this study examined whether differences in the prevalence of depressive symptoms exist and the degree to which psychosocial factors (years of education, employment status, stressful life events, emotional social support) explained any differences. METHODS Using a cross-sectional design, closed-format questionnaires were used to obtain clinical and psychosocial history. The definition of high depressive symptoms was based on a score of > or =16 on the Center for Epidemiologic Studies Depression Scale (CES-D). RESULTS Compared to whites (n=492), Latinos (n=59) were younger, and a greater proportion were female, but fewer completed high school and fewer were employed (P<0.05). More Latinos reported experiencing > or =2 recent stressful life events, but fewer reported having emotional social support (P<0.05). There was a significant association between race/ethnicity and depressive symptoms (OR=2.3, 95% CI: 1.3-4.5). In multivariate analyses, the significance of this association diminished when psychosocial variables were added to the model. CONCLUSIONS In this study, education, employment, stressful life events and emotional social support partially explained the observed racial/ethnic differences in depressive symptoms.
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McNally MA, Locke GR, Zinsmeister AR, Schleck CD, Peterson J, Talley NJ. Biliary events and an increased risk of new onset irritable bowel syndrome: a population-based cohort study. Aliment Pharmacol Ther 2008; 28:334-43. [PMID: 19086237 PMCID: PMC3335764 DOI: 10.1111/j.1365-2036.2008.03715.x] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
BACKGROUND Prospective data are lacking to determine if irritable bowel syndrome (IBS) is a risk factor for cholecystectomy, or if biliary disease and cholecystectomy predisposes to the development of IBS. AIM To test the hypothesis that IBS and biliary tract disease are associated. METHODS Validated symptom surveys sent to cohorts of Olmsted County, MN, (1988-1994) with follow-up in 2003. Medical histories were reviewed to determine any 'biliary events' (defined by gallstones or cholecystectomy). Analyses examined were: (i) time to a biliary event post-initial survey and separately and (ii) risk of IBS (Rome II) in those with vs. without a prior biliary event. RESULTS A total of 1908 eligible subjects were mailed a follow-up survey. For analysis (i) of the 726 without IBS at initial survey, 44 (6.1%) had biliary events during follow up, in contrast to 5 of 93 (5.4%) with IBS at initial survey (HR 0.8, 95% CI 0.3-2.1). For analysis (ii) of the 59 subjects with a biliary event at initial survey, 10 (17%) reported new IBS on the follow-up survey, while in 682 without a biliary event up to 1.5 years prior to the second survey, 58 (8.5%) reported IBS on follow-up (OR = 2.2, 95% CI 1.1-4.6, P = 0.03). CONCLUSION There is an increased risk of new IBS in community subjects who have been diagnosed as having a biliary event.
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Wilkinson LS, Hudson S, Peterson J. How does the location of a satellite screening site affect uptake? Breast Cancer Res 2008. [PMCID: PMC3332592 DOI: 10.1186/bcr2020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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Wells G, Cranney A, Peterson J, Boucher M, Shea B, Robinson V, Coyle D, Tugwell P. Risedronate for the primary and secondary prevention of osteoporotic fractures in postmenopausal women. Cochrane Database Syst Rev 2008:CD004523. [PMID: 18254053 DOI: 10.1002/14651858.cd004523.pub3] [Citation(s) in RCA: 138] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
BACKGROUND Osteoporosis is an abnormal reduction in bone mass and bone deterioration leading to increased fracture risk. Risedronate belongs to the bisphosphonate class of drugs which act to inhibit bone resorption by interfering with the activity of osteoclasts. OBJECTIVES To assess the efficacy of residronate in the primary and secondary prevention of osteoporotic fractures in postmenopausal women. SEARCH STRATEGY We searched CENTRAL, MEDLINE and EMBASE. Relevant randomized controlled trials published between 1966 to 2007 were identified. SELECTION CRITERIA Women receiving at least one year of risedronate for postmenopausal osteoporosis were compared to those receiving placebo or concurrent calcium/vitamin D or both. The outcome was fracture incidence. DATA COLLECTION AND ANALYSIS We carried out study selection and data abstraction in duplicate. Study quality was assessed through the reporting of allocation concealment, blinding and withdrawals. Meta-analysis was preformed using relative risks and a >15% relative change was considered clinically important. MAIN RESULTS Seven trials were included in the review representing 14,049 women. Relative (RRR) and absolute (ARR) risk reductions for the 5 mg dose were as follows. Risk estimates for primary prevention were available only for vertebral and non vertebral fractures and showed no statistically significant effect of risedronate on fractures. For secondary prevention, a significant 39% RRR in vertebral fractures (RR 0.61, 95% CI 0.50 to 0.76) with 5% ARR was found. For non-vertebral fractures, a significant 20% RRR (RR 0.80, 95% CI 0.72 to 0.90) with 2% ARR and for hip fractures there was a significant 26% RRR (RR: 0.74, 95% CI 0.59 to 0.94) with a 1% ARR. When primary and secondary prevention studies were combined, the reduction in fractures remained statistically significant for both vertebral (RR 0.63, 0.51 to 0.77) and non vertebral fractures (RR 0.80, 0.72 to 0.90)For adverse events, no statistically significant differences were found in any of the included studies. However, observational data has led to concerns regarding the potential risk for upper gastrointestinal injury and, less commonly, osteonecrosis of the jaw. AUTHORS' CONCLUSIONS At 5 mg/day a statistically significant and clinically important benefit in the secondary prevention of vertebral, non-vertebral and hip fractures was observed, but not for wrist. The level of evidence for secondary prevention is Gold (www.cochranemsk.org) for vertebral and non-vertebral and Silver for hip and wrist. There were no statistically significant reductions in the primary prevention of vertebral and non-vertebral fractures. The level of evidence is Silver.
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Wells GA, Cranney A, Peterson J, Boucher M, Shea B, Robinson V, Coyle D, Tugwell P. Alendronate for the primary and secondary prevention of osteoporotic fractures in postmenopausal women. Cochrane Database Syst Rev 2008:CD001155. [PMID: 18253985 DOI: 10.1002/14651858.cd001155.pub2] [Citation(s) in RCA: 216] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
BACKGROUND Osteoporosis is an abnormal reduction in bone mass and bone deterioration leading to increased fracture risk. Alendronate belongs to the bisphosphonate class of drugs, which act to inhibit bone resorption by interfering with the activity of osteoclasts. OBJECTIVES To assess the efficacy of alendronate in the primary and secondary prevention of osteoporotic fractures in postmenopausal women. SEARCH STRATEGY We searched CENTRAL, MEDLINE and EMBASE for relevant randomized controlled trials published between 1966 to 2007. SELECTION CRITERIA Women receiving at least one year of alendronate, for postmenopausal osteoporosis, were compared to those receiving placebo and/or concurrent calcium/vitamin D. The outcome was fracture incidence. DATA COLLECTION AND ANALYSIS We undertook study selection and data abstraction in duplicate. We performed meta-analysis of fracture outcomes using relative risks and a > 15% relative change was considered clinically important. We assessed study quality through reporting of allocation concealment, blinding and withdrawals. MAIN RESULTS Eleven trials representing 12,068 women were included in the review. Relative (RRR) and absolute (ARR) risk reductions for the 10 mg dose were as follows. For vertebral fractures, a significant 45% RRR was found (RR 0.55, 95% CI 0.45 to 0.67). This was significant for both primary prevention, with 45% RRR (RR 0.55, 95% CI 0.38 to 0.80) and 2% ARR, and secondary prevention with 45% RRR (RR 0.55, 95% CI 0.43 to 0.69) and 6% ARR. For non-vertebral fractures, a significant 16% RRR was found (RR 0.84, 95% CI 0.74 to 0.94). This was significant for secondary prevention, with 23% RRR (RR 0.77, 95% CI 0.64 to 0.92) and 2% ARR, but not for primary prevention (RR 0.89, 95% CI 0.76 to 1.04). There was a significant 40% RRR in hip fractures (RR 0.60, 95% CI 0.40 to 0.92), but only secondary prevention was significant with 53% RRR (RR 0.47, 95% CI 0.26 to 0.85) and 1% ARR. The only significance found for wrist was in secondary prevention, with a 50% RRR (RR 0.50 95% CI 0.34 to 0.73) and 2% ARR. For adverse events, we found no statistically significant differences in any included study. However, observational data raise concerns regarding potential risk for upper gastrointestinal injury and, less commonly, osteonecrosis of the jaw. AUTHORS' CONCLUSIONS At 10 mg per day, both clinically important and statistically significant reductions in vertebral, non-vertebral, hip and wrist fractures were observed for secondary prevention ('gold' level evidence, www.cochranemsk.org). We found no statistically significant results for primary prevention, with the exception of vertebral fractures, for which the reduction was clinically important ('gold' level evidence).
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Wells GA, Cranney A, Peterson J, Boucher M, Shea B, Robinson V, Coyle D, Tugwell P. Alendronate for the primary and secondary prevention of osteoporotic fractures in postmenopausal women. THE COCHRANE DATABASE OF SYSTEMATIC REVIEWS 2008. [PMID: 18253985 DOI: 10.1002/14651858.cd001155] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
BACKGROUND Osteoporosis is an abnormal reduction in bone mass and bone deterioration leading to increased fracture risk. Alendronate belongs to the bisphosphonate class of drugs, which act to inhibit bone resorption by interfering with the activity of osteoclasts. OBJECTIVES To assess the efficacy of alendronate in the primary and secondary prevention of osteoporotic fractures in postmenopausal women. SEARCH STRATEGY We searched CENTRAL, MEDLINE and EMBASE for relevant randomized controlled trials published between 1966 to 2007. SELECTION CRITERIA Women receiving at least one year of alendronate, for postmenopausal osteoporosis, were compared to those receiving placebo and/or concurrent calcium/vitamin D. The outcome was fracture incidence. DATA COLLECTION AND ANALYSIS We undertook study selection and data abstraction in duplicate. We performed meta-analysis of fracture outcomes using relative risks and a > 15% relative change was considered clinically important. We assessed study quality through reporting of allocation concealment, blinding and withdrawals. MAIN RESULTS Eleven trials representing 12,068 women were included in the review. Relative (RRR) and absolute (ARR) risk reductions for the 10 mg dose were as follows. For vertebral fractures, a significant 45% RRR was found (RR 0.55, 95% CI 0.45 to 0.67). This was significant for both primary prevention, with 45% RRR (RR 0.55, 95% CI 0.38 to 0.80) and 2% ARR, and secondary prevention with 45% RRR (RR 0.55, 95% CI 0.43 to 0.69) and 6% ARR. For non-vertebral fractures, a significant 16% RRR was found (RR 0.84, 95% CI 0.74 to 0.94). This was significant for secondary prevention, with 23% RRR (RR 0.77, 95% CI 0.64 to 0.92) and 2% ARR, but not for primary prevention (RR 0.89, 95% CI 0.76 to 1.04). There was a significant 40% RRR in hip fractures (RR 0.60, 95% CI 0.40 to 0.92), but only secondary prevention was significant with 53% RRR (RR 0.47, 95% CI 0.26 to 0.85) and 1% ARR. The only significance found for wrist was in secondary prevention, with a 50% RRR (RR 0.50 95% CI 0.34 to 0.73) and 2% ARR. For adverse events, we found no statistically significant differences in any included study. However, observational data raise concerns regarding potential risk for upper gastrointestinal injury and, less commonly, osteonecrosis of the jaw. AUTHORS' CONCLUSIONS At 10 mg per day, both clinically important and statistically significant reductions in vertebral, non-vertebral, hip and wrist fractures were observed for secondary prevention ('gold' level evidence, www.cochranemsk.org). We found no statistically significant results for primary prevention, with the exception of vertebral fractures, for which the reduction was clinically important ('gold' level evidence).
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Wells GA, Cranney A, Peterson J, Boucher M, Shea B, Robinson V, Coyle D, Tugwell P. Etidronate for the primary and secondary prevention of osteoporotic fractures in postmenopausal women. Cochrane Database Syst Rev 2008:CD003376. [PMID: 18254018 PMCID: PMC6999803 DOI: 10.1002/14651858.cd003376.pub3] [Citation(s) in RCA: 66] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
BACKGROUND Osteoporosis is an abnormal reduction in bone mass and bone deterioration leading to increased fracture risk. Etidronate belongs to the bisphosphonate class of drugs which act to inhibit bone resorption by interfering with the activity of osteoclasts. OBJECTIVES To assess the efficacy of etidronate in the primary and secondary prevention of osteoporotic fractures in postmenopausal women. SEARCH STRATEGY We searched CENTRAL, MEDLINE and EMBASE for relevant randomized controlled trials published between 1966 to 2007. SELECTION CRITERIA Women receiving at least one year of etidronate for postmenopausal osteoporosis were compared to those receiving placebo and/or concurrent calcium/vitamin D. The outcome was fracture incidence. DATA COLLECTION AND ANALYSIS Study selection and data abstraction was done in duplicate. Meta-analysis of fracture outcomes was performed with data presented as relative risks and a relative change greater than 15% was considered clinically important. Study quality was assessed through the reporting of allocation concealment, blinding and withdrawals. MAIN RESULTS Eleven studies representing a total of 1248 patients were included in the review.A significant 41% relative risk reduction (RRR) in vertebral fractures across eight studies (RR 0.59, 95% CI 0.36 to 0.96) was found. The six secondary prevention trials demonstrated a significant RRR of 47% in vertebral fractures (RR 0.53, 95% CI 0.32 to 0.87) and a 5% absolute risk reduction (ARR); compared with the pooled result for the two primary prevention trials (RR 3.03, 95% CI 0.32 to 28.44), which was not significant. There were no statistically significant risk reductions for non-vertebral (RR 0.98, 95% CI 0.68 to 1.42), hip (RR 1.20, 95% CI 0.37 to 3.88) or wrist fractures (RR 0.87, 95% CI: 0.32 to 2.36). For adverse events, no statistically significant differences were found in the included studies. However, observational data has led to concerns regarding potential risk for upper gastrointestinal injury. AUTHORS' CONCLUSIONS Etidronate, at 400 mg per day, demonstrated a statistically significant and clinically important benefit in the secondary prevention of vertebral fractures. No statistically significant reductions in vertebral fractures were observed when it was used for primary prevention. In addition, no statistically significant reductions in non-vertebral, hip, or wrist fractures were found, regardless of whether etidronate was used for primary or secondary prevention. The level of evidence for all outcomes is Silver (www.cochranemsk.org.).
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Shea B, Wells G, Cranney A, Zytaruk N, Robinson V, Griffith L, Hamel C, Ortiz Z, Peterson J, Adachi J, Tugwell P, Guyatt G. WITHDRAWN: Calcium supplementation on bone loss in postmenopausal women. Cochrane Database Syst Rev 2007; 2006:CD004526. [PMID: 17636765 PMCID: PMC10687496 DOI: 10.1002/14651858.cd004526.pub3] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
BACKGROUND Although calcium is one the simplest and least expensive strategies for preventing osteoporotic fractures calcium supplementation is nevertheless not without controversy (Kanis 1989; Nordin 1990). The Food and Drug Administration in the US has permitted a bone health claim for calcium-rich foods, and the NIH in its Consensus Development Process approved a statement that high calcium intake reduces the risk of osteoporosis. OBJECTIVES To assess the effects of calcium on bone density and fractures in postmenopausal women. SEARCH STRATEGY We searched Cochrane Controlled Register, MEDLINE and EMBASE up to 2001, and examined citations of relevant articles and proceedings of international meetings. SELECTION CRITERIA Trials that randomized postmenopausal women to calcium supplementation or usual calcium intake in the diet and reported bone mineral density of the total body, vertebral spine, hip, or forearm or recorded the number of fractures, and followed patients for at least one year were considered for inclusion. DATA COLLECTION AND ANALYSIS Three independent reviewers assessed the methodologic quality and extracted data for each trial. For each bone density site (lumbar spine, total body, combined hip and combined forearm), we calculated the weighted mean difference in bone density between treatment and control groups using the percentage change from baseline. We constructed regression models in which the independent variables were year and dose, and the dependent variable was the effect size. This regression was used to determine the years across which pooling was appropriate. Heterogeneity was assessed. For each fracture analysis we calculated a risk ratio. MAIN RESULTS Fifteen trials, representing 1806 participants, were included. Calcium was more effective than placebo in reducing rates of bone loss after two or more years of treatment. The pooled difference in percentage change from baseline was 2.05% (95% CI 0.24 to 3.86) for total body bone density, 1.66% (95% CI 0.92 to 2.39) for the lumbar spine at 2 years, 1.60% (95% CI 0.78 to 2.41) for the hip, and 1.91% (95% CI 0.33 to 3.50) for the distal radius. The relative risk of fractures of the vertebrae was 0.79 (95% CI 0.54 to 1.09); the relative risk for non-vertebral fractures was 0.86 (95% CI 0.43 to 1.72). AUTHORS' CONCLUSIONS Calcium supplementation alone has a small positive effect on bone density. The data show a trend toward reduction in vertebral fractures, but it is unclear if calcium reduces the incidence of non vertebral fractures.
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Parikh P, Lechleiter K, Malinowski K, Sargent B, Peterson J, Newell J, Bradley J, Low D. TH-C-M100J-08: Dosimetric Effects of a 4D Magnetic Localization System for LINAC Beam Gating On Prostate and Lung Radiation Therapy. Med Phys 2007. [DOI: 10.1118/1.2761656] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Shepard DM, Housley DJ, Afghan MKN, Sargent B, Peterson J, Newell J. WE-E-M100F-06: Latency Measurements and Demonstration of a 4D Electromagnetic Localization System for LINAC Beam Gating. Med Phys 2007. [DOI: 10.1118/1.2761588] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Choung RS, Talley NJ, Peterson J, Camilleri M, Burton D, Harmsen WS, Zinsmeister AR. A double-blind, randomized, placebo-controlled trial of itopride (100 and 200 mg three times daily) on gastric motor and sensory function in healthy volunteers. Neurogastroenterol Motil 2007; 19:180-7. [PMID: 17300287 DOI: 10.1111/j.1365-2982.2006.00869.x] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Itopride, a dopamine D2 antagonist and acetylcholinesterase inhibitor, significantly improved symptoms in patients with functional dyspepsia in one phase II randomized trial. However, the mechanisms by which itopride may improve symptoms are unknown. We aimed to compare the effects of two doses of itopride and placebo on gastric volumes, gastric emptying, small bowel transit and satiation in female and male healthy volunteers. Randomized, double-blind, placebo-controlled study evaluated gastric function before and after 7 days of itopride 100 mg (n = 16) or 200 mg (n = 15) or placebo (n = 15) t.i.d. Validated methods were used to study gastric accommodation (single photon emission computed tomography), gastric emptying and orocecal transit and satiation postnutrient challenge. The three arms were comparable with regard to age, gender and body mass index. There were no statistically significant effects of itopride on gastric emptying, orocecal transit, fasting gastric volume, maximum tolerated volume or aggregate symptom score with nutrient drink challenge. Postprandial (PP) change in gastric volume differed in the three groups (P = 0.019): 625[+/-28 (SEM)], 555(+/-26) and 512(+/-33) in placebo, itopride 100 and 200 mg groups, respectively. In healthy subjects, itopride reduced total PP gastric volume without accelerating gastric emptying or significantly altering gastric motor and sensory function in healthy individuals.
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Brown P, Peterson J, Khashab M, Kaul S, Fisher A, Kahn J. O142 Once daily, levofloxacin 750 mg for 5 days in the treatment of acute pyelonephritis and associated bacteraemia. Int J Antimicrob Agents 2007. [DOI: 10.1016/s0924-8579(07)70092-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Peterson J, Fisher A, Khashab M, Kahn J. P2013 A decade of levofioxacin: summary of the cumulative clinical trial safety database. Int J Antimicrob Agents 2007. [DOI: 10.1016/s0924-8579(07)71852-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Cornes BK, Sporston MI, Peterson J, Dawson JS. Sorted. Br J Hosp Med (Lond) 2007; 68:47. [PMID: 17262901] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
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Talley NJ, Camilleri M, Burton D, Thomforde G, Koch K, Rucker MJ, Peterson J, Zinsmeister AR, Earnest DL. Double-blind, randomized, placebo-controlled study to evaluate the effects of tegaserod on gastric motor, sensory and myoelectric function in healthy volunteers. Aliment Pharmacol Ther 2006; 24:859-67. [PMID: 16918891 DOI: 10.1111/j.1365-2036.2006.03049.x] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
BACKGROUND The effects of tegaserod on gastric accommodation and postprandial satiety remain unclear. AIM To compare the effects of tegaserod 6 mg twice daily vs. placebo on gastric volumes, postprandial symptoms, gastric emptying, small bowel transit and the surface electrogastrogram in female and male healthy volunteers. METHODS Randomized, double-blind, placebo-controlled study evaluated gastric function before and after 7 days of tegaserod 6 mg twice daily (n = 21) vs. placebo (n = 20) in healthy volunteers. Validated methods were used to study gastric emptying, myoelectrical activity, volumes and satiation postnutrient challenge. RESULTS There were no significant effects of tegaserod on the primary endpoints assessing gastric function: emptying of solids or liquids, total gastric volumes or myoelectrical activity. Maximum tolerated volume and aggregate symptom score with nutrient challenge on placebo were 1,035 mL (+/-44) and 130 (+/-15) vs. 989 mL (+/-43) and 117 (+/-15) during tegaserod, respectively (all P = N.S.). Postprandial change in proximal gastric volume by single photon emission-computed tomography was decreased in females on tegaserod (246 +/- 30) vs. placebo (358 +/- 32) (P = 0.015). Proximal fasting volumes in females were increased on tegaserod (126 +/- 12) vs. placebo (92 +/- 13) (P = 0.066). CONCLUSIONS While tegaserod decreased proximal gastric volume change after a meal, it does not appear to have significant effects on gastric motor and sensory function in healthy individuals. Further studies are required in patients with disturbances of gastric motor and sensory function.
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Kiland JA, Miller CL, Kim CBY, Ver Hoeve JN, Gabelt BT, Peterson J, Nork TM, Kaufman PL. Effect of H-7 and Lat-B on retinal physiology. Curr Eye Res 2006; 31:441-55. [PMID: 16714236 DOI: 10.1080/02713680600672185] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
PURPOSE To investigate the effects of H-7 and Latrunculin B (Lat-B) on retinal vascular permeability and electrophysiology at concentrations that increase outflow facility in monkeys. METHODS One eye of 1 rhesus and 22 cynomolgus monkeys received an intravitreal bolus injection of H-7 or Lat-B; the opposite eye received vehicle. Multifocal electroretinograms (mfERGs), and photopic and scotopic full-field electroretinograms (ffERGs, sERGs) were recorded in subsets of monkeys at baseline and at multiple time-points post-H-7 or Lat-B. Vitreous fluorophotometry (VF) and fluorescein angiography (FA) were also performed. RESULTS No differences between the H-7 or Lat-B treated and control eyes were found in ffERGs, mfERGs, sERGs, or in FAs in any monkey. No significant difference was found in vitreous fluorescein levels between H-7 treated or Lat-B treated vs. control eyes. CONCLUSIONS No effect on retinal vascular permeability or retinal electrophysiology was apparent after intravitreal administration of H-7 or Lat-B at doses that increase outflow facility and lower IOP when given intracamerally.
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Peterson J, Johnson N, Deakins K, Wilson-Costello D, Jelovsek JE, Chatburn R. Accuracy of the 7-8-9 Rule for endotracheal tube placement in the neonate. J Perinatol 2006; 26:333-6. [PMID: 16642028 DOI: 10.1038/sj.jp.7211503] [Citation(s) in RCA: 61] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
OBJECTIVE To determine accuracy of the 7-8-9 Rule in a cohort of neonates. STUDY DESIGN This study was cross-sectional in design. Seventy-five consecutive neonates who required oral intubation from June 2004 to November 2004 for cardiopulmonary failure, respiratory distress, or surfactant administration were the subjects of this study. The initial endotracheal tube (ETT) depth of insertion was determined using either an estimated birth weight or actual weight in the 7-8-9 Rule calculation followed by auscultation and subsequent adjustment if necessary. Midtracheal position was identified as the point halfway between the inferior clavicle and carina on a chest radiograph. The initial depth was compared to the midtracheal depth to determine clinical accuracy of the 7-8-9 Rule. The depth predicted by the 7-8-9 Rule was also calculated using only actual weights. This predicted depth was compared to the midtracheal depth to determine true accuracy of the 7-8-9 Rule. Accuracy was determined using mean paired differences with 95% confidence intervals (CI) between initial or predicted depth and ideal, midtracheal ETT depth. Linear regression was used to adjust for confounding variables. RESULTS Mean (range) gestational age was 32 weeks (23 to 44 weeks) and weight was 2001 g (490 to 4400 g). Eighteen (24%) infants weighed 1000 g or less, 20 (27%) weighed between 1001 and 2000 g, 21 (28%) weighed between 2001 and 3000 g, 15 (20%) weighed between 3001 and 4000 g, and one (1%) weighed more than 4000 g. Thirteen of the 18 extremely low birth weight infants weighed <750 g. The initial depth of insertion was 0.004 cm above midtracheal position (95% CI -0.13 to 0.14, P = 0.96). After controlling for head position, the initial depth did not significantly differ from the midtracheal position among weight groups. Predicted depth using the 7-8-9 Rule placed the ETT 0.12 cm above midtracheal position (95% CI -0.30 to 0.06, P = 0.20). However, after controlling for head position, the 7-8-9 Rule positioned the ETT significantly below midtracheal position in infants weighing <750 g (mean 0.62 cm; 95% CI 0.30 to 0.93, P=0.002). CONCLUSIONS The 7-8-9 Rule appears to be an accurate clinical method for endotracheal tube placement in neonates weighing more than 750 g. When the 7-8-9 Rule is applied to infants weighing <750 g, caution is warranted. The current rule may lead to an overestimated depth of insertion and potentially result in clinically significant consequences.
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Lee R, Berg M, McGowan L, Peterson J, Ledgard A, Li N. 152 SURVIVAL OF BIOPSIED DAY 15 BOVINE CONCEPTI RE-TRANSFERRED TO SYNCHRONIZED RECIPIENT HEIFERS. Reprod Fertil Dev 2006. [DOI: 10.1071/rdv18n2ab152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
In cattle, a significant proportion of in vitro-produced (IVP) blastocysts do not result in viable pregnancies after transfer to recipient surrogates. Betteridge et al. (1980 J. Reprod. Fert. 59, 205–216) showed that it was possible after superovulation to recover elongated bovine embryos up to Day 17, transfer them into synchronized recipient cows, and have them develop further. We investigated the feasibility of recovering cattle embryos at Day 15, taking a sample of the trophoblast and transferring the embryos into recipients afterward for further development. The biopsied material could be used later to evaluate gene expression and correlate the profile retrospectively with developmental potential. With this approach, a larger amount of material is available for study and only embryos surviving to the elongation stage would be examined. In our experience, 30–40% of transferred blastocysts do not develop to the elongation stage. In three separate experiments, IVP embryos were generated using abattoir derived oocytes and cultured in SOF-aa supplemented with BSA (Thompson et al. 2000 J. Reprod. Fert. 118, 47–55). Six graded Day 7 (Day 0 = day of IVF) blastocysts were transferred into synchronized recipient heifers (n = 10 for each experiment). At Day 15 of gestation, concepti were flushed from the uteri after slaughter with EmCare Flush (ICPbio, Ltd., Suckland, New Zealand) containing 25 mg/mL kanamycin sulfate and then put into EmCare Hold. Conceptus lengths were measured and a proportion of those >30 mm long were cut off (5–15 mm) at one end and the trophoblast kept for future analysis. Pairs of cut or uncut (control) concepti were loaded into 0.25-mL embryo transfer straws. Each pair was transferred nonsurgically into recipients synchronized at Days 15 (Expt. 1, n = 17) or 13 (Expts. 2 and 3, n = 16 and 17, respectively) of the estrous cycle. The time between embryo flush and transfer to a recipient was noted. At Day 30, embryo survival was assessed at slaughter and compared using the Fisher's exact and chi-square. Day 15 conceptus lengths varied between 1 and 140 mm. The time between flush and transfer varied between 13 and 126 min and did not affect the ability of the concepti to subsequently establish pregnancies. Transfer to an earlier uterine environment did not significantly improve embryo survival. The proportion of embryos recovered at Day 30 was not affected by the biopsy. Up to 10 mm can be removed from 40–10 mm concepti without effect on subsequent survival. However, the overall survival post-Day 15 transfer is still too low for practical application.
Table 1.
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Houben RMA, Gijsen A, Peterson J, de Jong PJ, Vlaeyen JWS. Do health care providers' attitudes towards back pain predict their treatment recommendations? Differential predictive validity of implicit and explicit attitude measures. Pain 2005; 114:491-498. [PMID: 15777874 DOI: 10.1016/j.pain.2005.01.017] [Citation(s) in RCA: 87] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2004] [Revised: 01/05/2005] [Accepted: 01/24/2005] [Indexed: 11/30/2022]
Abstract
The current study aimed to measure the differential predictive value of implicit and explicit attitude measures on treatment behaviour of health care providers. Thirty-six physiotherapy students completed a measure of explicit treatment attitude (Pain Attitudes And Beliefs Scale For Physiotherapists-PABS-PT) and a measure of implicit treatment attitude (Extrinsic Affective Simon Task-EAST). Furthermore, they gave treatment recommendations for a patient simulating back pain on three video scenes. The implicit and explicit measures of attitudes were only weakly related to each other. However, both were differentially related to treatment recommendations. The implications of the differential predictive value of implicit and explicit attitude measures for treatment behaviour are discussed.
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Li N, Xiang T, Ledgard A, Peterson J, Wells D, Lee R. 226 GREATER DYSREGULATION OF GENE EXPRESSION IN PRE-IMPLANTATION CLONED OVINE COMPARED WITH CLONED BOVINE CONCEPTUSES. Reprod Fertil Dev 2005. [DOI: 10.1071/rdv17n2ab226] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
In our experience, the cloning of sheep by somatic cell nuclear transfer has been less successful than with cattle (5 v. 10% live births from embryo transfer). Here, we compare data collected over many years on the pre-implantation development of nuclear transfer (NT) ovine and bovine embryos with contemporary in vitro produced (IVP) embryos at the elongation (bovine Day 16–18 v. ovine Day 14) and allantois formation (bovine Day 26/27 v. ovine Day 21) stages. Sheep NT conceptuses were generated from three fibroblast types (skin, kidney, and lung) derived from a Day 100 female fetus. Bovine NT embryos were generated from a granulosa cell line derived from a mature dairy cow. The expression of a subset of genes (IGF2, H19, IGF2R, IGFBP-2, PEG1/Mest and trophoblast-expressed genes such as IFN-τ, TKDP-1, COX-2, and placental lactogen) was examined in both species at the two stages of development, using either Northern or slot-blot analysis. Pairwise comparisons between groups were carried out using Student's t-test. The proportion of ovine NT embryos that developed into blastocysts from the three cell types combined was 11% (117/1052) compared with 79% (86/109) for bovine NT from the one cell line. After transfer to synchronized recipients, 50–60% developed to the elongated conceptus stage for both species. Day 14 ovine NT (n = 19) and IVP (n = 26) conceptus lengths were similar whereas Day 16 bovine NT (n = 9) lengths were slightly shorter than those of IVP (n = 3) conceptuses (P > 0.05). However, only 30% (16/52) of ovine NT embryos developed to Day 21 compared with 64% (9/14) for Day 26/27 bovine NT. Bovine NT and IVP embryo and allantoic lengths were not significantly different; however, both lengths were shorter in ovine NT than in IVP controls (P < 0.05 and < 0.005, respectively). In each species, there was considerable individual variation in expression levels of most genes at each stage, probably due to variation in developmental stage of individuals even from the same day of gestation. The difference may be due to the timing of onset or termination of gene expression. In Day 16–18 bovine NT conceptuses, only the mean level of PEG1/Mest expression was significantly different (P < 0.05) from that of IVP conceptuses. In contrast, mean expression levels for TKDP-1 (P < 0.0001) and COX-2 (P < 0.05) were higher in ovine Day 14 NT, and PEG1/Mest was higher (P < 0.05) in Day 21 NT when compared with contemporary IVP controls. H19 and IGF2 expression was coordinately regulated in bovine NT and in ovine and bovine IVP conceptuses (IGF2 and H19 mRNA abundance was directly correlated). This coordinate regulation was disrupted in certain Day 21 ovine NT conceptuses, where high H19 levels occurred in the presence of low levels of IGF2, but not the converse. Thus, greater dysregulation in gene expression and loss of coordinate regulation of two key imprinted genes may explain the lower survival rate of ovine NT embryos to the early fetal stage when compared with bovine NT embryos. The effect of donor cell type on the species difference cannot be discounted.
This work was supported by FRST C10X0303 programme.
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Lagiou P, Samoli E, Lagiou A, Peterson J, Tzonou A, Dwyer J, Trichopoulos D. Flavonoids, vitamin C and adenocarcinoma of the stomach. Cancer Causes Control 2004; 15:67-72. [PMID: 14970736 DOI: 10.1023/b:caco.0000016619.18041.b0] [Citation(s) in RCA: 82] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE To examine the role of six flavonoid classes (flavanones, flavan-3-ols, flavonols, flavones, anthocyanidins and isoflavones) and vitamin C in the aetiology of stomach cancer. METHODS Case-control study undertaken in Greece in the 1980s. Dietary information was obtained from 110 patients with incident stomach adenocarcinoma and 100 control patients. Flavonoid estimates were based on the recently released database of the US Department of Agriculture. RESULTS In models including sociodemographic variables, energy intake, vegetables, fruits and, alternatively, vitamin C the six flavonoid classes, only flavanones and vegetables remained significantly inversely associated with stomach cancer risk. The odds ratio (95% confidence intervals) per one standard deviation increase of intake of flavanones was 0.55 (0.31-0.96) whereas for vitamin C it was 1.05 (0.46-2.41). When fruits and vegetables were not adjusted for, both vitamin C and several flavonoid categories were inversely associated with stomach cancer risk, but these associations could be attributed to other compounds in these foods. CONCLUSIONS Among the major flavonoid classes studied, only flavanone intake is inversely associated with stomach cancer risk and could account for the apparent protective effect of fruit intake against this form of cancer. Additional factors, however, are likely to be involved in the consistent protection conveyed by vegetables.
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Xiong X, Allinson G, Stagnitti F, Li P, Wang X, Liu W, Allinson M, Turoczy N, Peterson J. Cadmium contamination of soils of the Shenyang Zhangshi Irrigation Area, China: an historical perspective. BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2004; 73:270-275. [PMID: 15386039 DOI: 10.1007/s00128-004-0423-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
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