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El Jeni R, Villot C, Koyun OY, Osorio-Doblado A, Baloyi JJ, Lourenco JM, Steele M, Callaway TR. Invited review: "Probiotic" approaches to improving dairy production: Reassessing "magic foo-foo dust". J Dairy Sci 2024; 107:1832-1856. [PMID: 37949397 DOI: 10.3168/jds.2023-23831] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Accepted: 10/24/2023] [Indexed: 11/12/2023]
Abstract
The gastrointestinal microbial consortium in dairy cattle is critical to determining the energetic status of the dairy cow from birth through her final lactation. The ruminant's microbial community can degrade a wide variety of feedstuffs, which can affect growth, as well as production rate and efficiency on the farm, but can also affect food safety, animal health, and environmental impacts of dairy production. Gut microbial diversity and density are powerful tools that can be harnessed to benefit both producers and consumers. The incentives in the United States to develop Alternatives to Antibiotics for use in food-animal production have been largely driven by the Veterinary Feed Directive and have led to an increased use of probiotic approaches to alter the gastrointestinal microbial community composition, resulting in improved heifer growth, milk production and efficiency, and animal health. However, the efficacy of direct-fed microbials or probiotics in dairy cattle has been highly variable due to specific microbial ecological factors within the host gut and its native microflora. Interactions (both synergistic and antagonistic) between the microbial ecosystem and the host animal physiology (including epithelial cells, immune system, hormones, enzyme activities, and epigenetics) are critical to understanding why some probiotics work but others do not. Increasing availability of next-generation sequencing approaches provides novel insights into how probiotic approaches change the microbial community composition in the gut that can potentially affect animal health (e.g., diarrhea or scours, gut integrity, foodborne pathogens), as well as animal performance (e.g., growth, reproduction, productivity) and fermentation parameters (e.g., pH, short-chain fatty acids, methane production, and microbial profiles) of cattle. However, it remains clear that all direct-fed microbials are not created equal and their efficacy remains highly variable and dependent on stage of production and farm environment. Collectively, data have demonstrated that probiotic effects are not limited to the simple mechanisms that have been traditionally hypothesized, but instead are part of a complex cascade of microbial ecological and host animal physiological effects that ultimately impact dairy production and profitability.
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Affiliation(s)
- R El Jeni
- Department of Animal and Dairy Science, University of Georgia, Athens, GA 30602
| | - C Villot
- Lallemand SAS, Blagnac, France, 31069
| | - O Y Koyun
- Department of Animal and Dairy Science, University of Georgia, Athens, GA 30602
| | - A Osorio-Doblado
- Department of Animal and Dairy Science, University of Georgia, Athens, GA 30602
| | - J J Baloyi
- Department of Animal and Dairy Science, University of Georgia, Athens, GA 30602
| | - J M Lourenco
- Department of Animal and Dairy Science, University of Georgia, Athens, GA 30602
| | - M Steele
- Department of Animal Biosciences, University of Guelph, Guelph, ON, Canada, N1G 2W1
| | - T R Callaway
- Department of Animal and Dairy Science, University of Georgia, Athens, GA 30602.
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Bajus A, Renaud DL, Goetz HM, Steele M, Kelton D, Proudfoot KL, Creutzinger KC. Effects of transportation duration on lying behavior in young surplus dairy calves. J Dairy Sci 2023; 106:7932-7941. [PMID: 37268586 DOI: 10.3168/jds.2023-23229] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2023] [Accepted: 04/24/2023] [Indexed: 06/04/2023]
Abstract
Surplus dairy calves are commonly transported long distances from dairy farms to calf-raising facilities and livestock auctions. Current calf transportation research mainly describes physiological changes resulting from transportation. However, few studies have described the effects of transportation on calf behavior. The main objective of this study was to determine the effects of different durations of transportation (6, 12, and 16 h) on lying time and bouts in surplus dairy calves. A secondary objective of this study was to investigate whether calf age affected lying behavior around transportation. Surplus dairy calves (n = 175) were transported in 7 cohorts from 5 commercial dairy farms in Ontario to a single veal facility. On the day of transportation (d 0), calves were randomly assigned to 1 of 3 treatment groups: (1) 6 h (n = 60), (2) 12 h (n = 58), or (3) 16 h (n = 57) of continuous transportation by road. Calf lying and standing behaviors were recorded using HOBO data loggers (Hobo Pendant G Acceleration Data Logger, Onset Computer Corporation). Daily lying time (h/d) and bouts (no./d) were assessed from -1 to 3 d relative to transportation. The total time spent lying during transportation was assessed as the percentage of time lying (min lying/total min on the trailer × 100) from the time each calf was loaded onto the trailer until the time each calf was unloaded at the veal facility (n = 167). On the day of transportation (d 0), calves transported for 12 and 16 h spent less time lying (6 h: 17.1 h/d; 12 h: 15.9 h/d; 16 h: 15.0 h/d) and had more lying bouts (6 h: 21.9 bouts/d; 12 h: 25.8 bouts/d; 16 h: 29.8 bouts/d) compared with those transported for 6 h. On the day after transportation (d 1), calves transported for 16 h spent more time lying down than calves transported for 6 h (19.9 h/d vs. 18.8 h/d, respectively). In addition, during transportation, calves transported for 12 h and 16 h spent 5.8% and 7.6% more time lying down, respectively, than calves transported for 6 h. On each day relative to transportation (d -1 to 3), younger calves (2 to 5 d of age) spent a greater amount of time lying down than older calves (6 to 19 d of age) and, overall, had a greater number of lying bouts. The results of this study suggest that longer durations of transportation influence the lying behavior of surplus dairy calves, resulting in more fatigue during and after the journey and, therefore, potentially have negative implications for calf welfare. Additionally, longer durations of transportation may have greater influence on younger calves than older calves.
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Affiliation(s)
- A Bajus
- Department of Population Medicine, University of Guelph, Guelph, ON, Canada N1G 2W1
| | - D L Renaud
- Department of Population Medicine, University of Guelph, Guelph, ON, Canada N1G 2W1
| | - H M Goetz
- Department of Population Medicine, University of Guelph, Guelph, ON, Canada N1G 2W1
| | - M Steele
- Department of Animal Biosciences, University of Guelph, Guelph, ON, Canada N1G 2W1
| | - D Kelton
- Department of Population Medicine, University of Guelph, Guelph, ON, Canada N1G 2W1
| | - K L Proudfoot
- Department of Health Management and Companion Animals, Atlantic Veterinary College, University of Prince Edward Island, Charlottetown, PEI, Canada C1A 4P3
| | - K C Creutzinger
- Department of Animal and Food Science, University of Wisconsin-River Falls, River Falls, WI 54022.
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Calhoun K, Gray A, Steele M, Smith J. Amoebic Encephalitis: A Rare Cause of Encephalopathy in a Lung Transplant Patient. J Heart Lung Transplant 2023. [DOI: 10.1016/j.healun.2023.02.672] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/05/2023] Open
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Pryor J, Agarwal N, Randhawa S, Thomas N, Steele M, Gray A, Smith J. Treating 2 Birds with 1 Stone: Lobectomy for Diagnosis of Lung Cancer and Lung Volume Reduction Surgery Post-Transplant. J Heart Lung Transplant 2023. [DOI: 10.1016/j.healun.2023.02.1428] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/05/2023] Open
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5
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Jussila A, Zhang B, Kirti S, Wyetzner R, Reynolds C, Steele M, Hamburg-Shields E, Horsley V, Atit R. 124 Wnt signaling activation causes ATGL-dependent lipolysis in skin fibrosis. J Invest Dermatol 2022. [DOI: 10.1016/j.jid.2022.05.130] [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: 10/17/2022]
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Steele M, Steele H, Murphy A. Bringing Reflective Functioning to the Community: Aspects of psychotherapy process in the Group Attachment Based Intervention. The Psychoanalytic Study of the Child 2022. [DOI: 10.1080/00797308.2021.2022417] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- M. Steele
- Clinical Psychology and Center for Attachment Research, New School for Social Research
| | - H. Steele
- Clinical Pediatrics, Center for Babies, Toddlers and Families & the Early Childhood Center and Rose F Kennedy Children’s Evaluation and Rehabilitation Center, Albert Einstein College of Medicine
| | - A. Murphy
- Clinical Psychology and Center for Attachment Research, New School for Social Research
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Steele M, Howells L, Santer M, Sivyer K, Lawton S, Roberts A, Teasdale E, Muller I, Greenwell K. How has the COVID-19 pandemic affected eczema self-management and help seeking? A qualitative interview study with young people and parents/carers of children with eczema. Skin Health Dis 2021; 1:e59. [PMID: 34514465 PMCID: PMC8420339 DOI: 10.1002/ski2.59] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Revised: 06/07/2021] [Accepted: 06/15/2021] [Indexed: 01/31/2023]
Abstract
Background Eczema can have a considerable impact on quality of life. Treatments can improve this, but management is complex. Barriers to eczema self‐management may be impacted upon by environmental context, such as the COVID‐19 pandemic. Objectives To explore experiences of eczema, self‐management, and accessing healthcare and advice during the COVID‐19 pandemic among young people with eczema and parents/carers of children with eczema. Methods Qualitative semi‐structured interviews were carried out with 36 participants recruited from general practices as part of randomised controlled trials of online eczema resources. Results Changes to everyday life—Periods of staying at home due to the pandemic alter the burden of eczema, with reports of an improved routine and application of topical treatments for many, but difficulties with handwashing for others. Parents/carers reported improved eczema control due to closures of educational settings. Young people reported higher stress that may have triggered eczema flare‐ups. Changes to access to advice and treatment—There was a reluctance to seek medical appointments in a non‐emergency situation. Participants reported a lack of trust in the outcome of telephone consultations because health professionals were unable to see or feel the skin. Delays or difficulties when obtaining appointments and treatments caused frustration. Access to an online eczema resource was reported to have extra value in the context of the pandemic. Conclusion Changes to lifestyle and access to healthcare during the pandemic have affected eczema and self‐management. Healthcare settings may want to consider providing extra reassurance around remote consultations.
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Affiliation(s)
- M Steele
- Primary Care, Population Sciences and Medical Education Faculty of Medicine University of Southampton Southampton UK.,Centre for Clinical and Community Applications of Health Psychology School of Psychology Faculty of Environmental and Life Sciences University of Southampton Southampton UK
| | - L Howells
- Centre of Evidence Based Dermatology School of Medicine University of Nottingham Nottingham UK
| | - M Santer
- Primary Care, Population Sciences and Medical Education Faculty of Medicine University of Southampton Southampton UK
| | - K Sivyer
- Department of Psychology Faculty of Science and Health University of Portsmouth Portsmouth UK
| | - S Lawton
- Rotherham NHS Foundation Trust Rotherham UK
| | - A Roberts
- Nottingham Support Group for Carers of Children with Eczema Nottingham UK
| | - E Teasdale
- Primary Care, Population Sciences and Medical Education Faculty of Medicine University of Southampton Southampton UK
| | - I Muller
- Primary Care, Population Sciences and Medical Education Faculty of Medicine University of Southampton Southampton UK
| | - K Greenwell
- Centre for Clinical and Community Applications of Health Psychology School of Psychology Faculty of Environmental and Life Sciences University of Southampton Southampton UK
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Jussila A, Zhang B, Kirti S, Steele M, Hamburg E, Horsley V, Atit R. 612 Wnt signaling induces fibrotic fat loss via DPP4 in skin fibrosis. J Invest Dermatol 2021. [DOI: 10.1016/j.jid.2021.02.641] [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: 10/21/2022]
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9
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Hare KS, Pletts S, Pyo J, Haines D, Guan LL, Steele M. Feeding colostrum or a 1:1 colostrum:whole milk mixture for 3 days after birth increases serum immunoglobulin G and apparent immunoglobulin G persistency in Holstein bulls. J Dairy Sci 2020; 103:11833-11843. [PMID: 33069413 DOI: 10.3168/jds.2020-18558] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2020] [Accepted: 06/28/2020] [Indexed: 01/27/2023]
Abstract
Conflicting reports exist on whether prolonged IgG consumption can further increase serum IgG in neonatal calves. Given that higher serum IgG in neonates has lifelong benefits, our objective was to determine whether serum IgG can be increased by providing multiple meals containing IgG to neonatal calves. Twenty-seven Holstein bulls were all fed 1 colostrum meal (7.5% body weight; 62 g of IgG/L) at 2 h after birth and randomly assigned to be fed (5% body weight) colostrum (COL; n = 9), whole milk (WM; n = 9), or a 1:1 colostrum:whole milk mixture (MX; n = 9) every 12 h from 12 to 72 h. Serum IgG was measured at 1, 2, 3, 6, 9, 11, and 12 h after birth. After the 12-h meal, IgG was determined at 0.5-h intervals until 16 h and then at 1-h intervals from 16 to 24 h. Serum IgG was then measured at 27 h, then every 6 h from 30 to 60 h. From 60 to 64 h, IgG was measured every 0.5 h, then at 65 and 66 h, and then every 2 h until 72 h. Serum IgG increased rapidly between 2 and 12 h for all calves. A treatment × time interaction occurred as serum IgG began to diverge between treatments after they were fed at 12 h; the interaction was greatest over the entire period for COL compared with both MX and WM and was greater for MX than for WM. Maximum IgG concentrations (Cmax) were 30.4 ± 0.8, 27.2 ± 0.8, and 23.9 ± 0.8 g/L for COL, MX, and WM, respectively. Although MX Cmax was equivalent to both COL and WM Cmax, COL Cmax was greater than WM Cmax. Feeding COL and MX also prolonged the time to reach Cmax. Respectively, these calves achieved Cmax at 29.5 and 27.0 ± 3.4 h, whereas WM IgG peaked at 13.4 ± 3.4 h. No differences were observed for apparent efficiency of absorption between treatments from 0 to 12 h and 0 to 24 h. Immunoglobulin G area under the curve (AUC) was the same for COL and MX calves over the entire experimental period and from when treatments were fed. The IgG AUC for 0 to 72 h for WM calves was 27.4% lesser than that for COL calves but not different from MX calves. However, the IgG AUC for 12 to 72 h for WM calves differed relative to that for both COL (30.8% less) and MX (19.6% less) calves. Serum IgG concentrations were more persistent when COL (88.2 ± 2.4%) and MX (91.2 ± 2.4%) were fed rather than WM (75.3 ± 2.4%). Prolonged IgG consumption increased serum IgG concentrations, corresponding to the mass of IgG fed, and improved apparent IgG persistency in Holstein bulls. Neonatal calves should be fed at least 62 g of IgG at 12 h after birth to further increase serum IgG concentrations.
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Affiliation(s)
- K S Hare
- Department of Animal Biosciences, Animal Science and Nutrition, University of Guelph, Guelph, ON, Canada N1G 1Y2
| | - S Pletts
- Department of Agricultural, Food and Nutritional Science, Faculty of Agricultural, Life and Environmental Sciences, University of Alberta, Alberta, AB, Canada T6G 2P5
| | - J Pyo
- Department of Agricultural, Food and Nutritional Science, Faculty of Agricultural, Life and Environmental Sciences, University of Alberta, Alberta, AB, Canada T6G 2P5
| | - D Haines
- Saskatoon Colostrum Company Ltd., Saskatoon, SK, Canada S7K 6A2
| | - L L Guan
- Department of Agricultural, Food and Nutritional Science, Faculty of Agricultural, Life and Environmental Sciences, University of Alberta, Alberta, AB, Canada T6G 2P5
| | - M Steele
- Department of Animal Biosciences, Animal Science and Nutrition, University of Guelph, Guelph, ON, Canada N1G 1Y2.
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Pyo J, Hare K, Pletts S, Inabu Y, Haines D, Sugino T, Guan LL, Steele M. Feeding colostrum or a 1:1 colostrum:milk mixture for 3 days postnatal increases small intestinal development and minimally influences plasma glucagon-like peptide-2 and serum insulin-like growth factor-1 concentrations in Holstein bull calves. J Dairy Sci 2020; 103:4236-4251. [PMID: 32171512 DOI: 10.3168/jds.2019-17219] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2019] [Accepted: 01/05/2020] [Indexed: 11/19/2022]
Abstract
This study evaluated how feeding colostrum- or a colostrum-milk mixture for 3 d postnatal affects plasma glucagon-like peptide-2 (GLP-2), serum insulin-like growth factor-1 (IGF-1), and small intestinal histomorphology in calves. Holstein bulls (n = 24) were fed colostrum at 2 h postnatal and randomly assigned to receive either colostrum (COL), whole milk (WM), or a 1:1 COL:WM mixture (MIX) every 12 h from 12 to 72 h. A jugular venous catheter was placed at 1 h postnatal to sample blood frequently for the duration of the experiment. Samples were collected at 1, 2, 3, 6, 9, 11, and 12 h. Following the 12-h meal, blood was collected at half-hour intervals until 16 h and then at 1-h intervals from 16 to 24 h. A 27-h sample was taken, then blood was sampled every 6 h from 30 to 60 h. Again, blood was taken at half-intervals from 60 to 64 h, then at 65 and 66 h, following which, a 2-h sampling interval was used until 72 h. Plasma GLP-2 (all time points) and serum IGF-1 (at time points: 1, 6, 12, 18, 24, 36, 48, and 72 h) were both analyzed. Duodenal, jejunal, and ileal tissues were collected at 75 h of age to assess histomorphology and cellular proliferation. Feeding COL, rather than WM, increased plasma GLP-2 by 60% for 2 h and tended to increase GLP-2 by 49.4% for 4 h after the 60-h meal. Insulin-like growth factor-1 area under the curve (from 12 to 72 h) tended to be 27% greater for COL than WM calves but was otherwise unaffected by treatment. Ileal crypts tended to proliferate more with MIX than WM, whereas ileal crypt proliferation did not differ for COL compared with MIX or WM and was not different between treatments in the proximal jejunum. Villi height was increased 1.8 and 1.5× (COL and MIX vs. WM) in the proximal and distal jejunum, respectively, whereas MIX duodenal and ileal villi height tended to be 1.5 and 1.4× that of WM. Crypt depth did not differ in any region. Surface area of the gastrointestinal tract was reduced for WM by 60 and 58% (proximal jejunum) and 38 and 52% (ileum) relative to COL and MIX and was 54% less than MIX in the distal jejunum. Overall, extended COL feeding minimally increased plasma GLP-2 and serum IGF-1 compared with WM feeding. As COL and MIX similarly promoted small intestinal maturation, feeding calves transition milk to promote intestinal development could be a strategy for producers.
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Affiliation(s)
- J Pyo
- Department of Agricultural, Food and Nutritional Science, Faculty of Agricultural, Life and Environmental Sciences, University of Alberta, Edmonton, AB, Canada T6G 2P5
| | - K Hare
- Department of Animal Biosciences, Animal Science and Nutrition, University of Guelph, Guelph, ON, Canada N1G 1Y2
| | - S Pletts
- Department of Agricultural, Food and Nutritional Science, Faculty of Agricultural, Life and Environmental Sciences, University of Alberta, Edmonton, AB, Canada T6G 2P5
| | - Y Inabu
- The Research Center for Animal Science, Graduate School of Biosphere Science, Hiroshima University, Higashi-Hiroshima, Japan 739-8528
| | - D Haines
- The Saskatoon Colostrum Company Ltd., Saskatoon, SK, Canada S7K 6A2
| | - T Sugino
- The Research Center for Animal Science, Graduate School of Biosphere Science, Hiroshima University, Higashi-Hiroshima, Japan 739-8528
| | - L L Guan
- Department of Agricultural, Food and Nutritional Science, Faculty of Agricultural, Life and Environmental Sciences, University of Alberta, Edmonton, AB, Canada T6G 2P5
| | - M Steele
- Department of Animal Biosciences, Animal Science and Nutrition, University of Guelph, Guelph, ON, Canada N1G 1Y2.
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Affiliation(s)
- M. Steele
- CAPD Unit South West Thames Renal Unit St. Helier Hospital
| | - J.T.C. Kwan
- CAPD Unit South West Thames Renal Unit St. Helier Hospital
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Tombácz K, Peters LM, Chang YM, Steele M, Werling D, Gibson AJ. Short communication: Pegbovigrastim treatment in vivo does not affect granulocyte ability to migrate to endometrial cells and kill bacteria in vitro in healthy cows. J Dairy Sci 2019; 102:9389-9395. [PMID: 31326166 DOI: 10.3168/jds.2019-16563] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2019] [Accepted: 05/20/2019] [Indexed: 12/18/2022]
Abstract
In periparturient dairy cows, immune suppression, resulting in decreased neutrophil numbers and function, leads to increased susceptibility to postpartum conditions such as mastitis, retained placenta, and metritis. Administration of polyethylene glycol-conjugated bovine granulocyte colony stimulating factor (pegbovigrastim, Imrestor; Elanco Animal Health, Greenfield, IN) 7 d before and within 24 h of calving, effectively improves granulocyte production and function in vivo as well as in milk. A recently developed coculture assay was adapted for use with endometrial epithelial cells to assess the effects of pegbovigrastim application on directed granulocyte migration and bactericidal activity in vitro on a per-cell basis in endometrial cell cultures. Granulocytes from treated and untreated periparturient cows (6 and 5 per group, respectively) were evaluated for their ability to migrate to and kill bacteria after treatment, in context of the infected endometrium. We hypothesized that in addition to increasing the absolute concentration of circulating neutrophil granulocytes, pegbovigrastim treatment in vivo alters the ability of granulocytes to migrate to endometrial cells in vitro. The results clearly show a marked increase in the total concentration of granulocytes and monocytes between the 2 treatment groups as early as 2 d after the first injection, and this increased between the samples taken 2 d after calving. No migratory or killing differences were identified between granulocytes of both groups, suggesting that pegbovigrastim-induced granulocytes were as effective as non-induced cells. This may also be due to the absence of negative energy balance in the study animals and leads us to conclude that the positive effects seen in vivo are most likely based on the larger number of granulocytes present rather than a direct effect of pegbovigrastim treatment on the functionality of cells for the parameters tested in this study.
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Affiliation(s)
- K Tombácz
- Department of Pathobiology and Population Sciences, Royal Veterinary College, Hatfield, AL9 7TA, United Kingdom
| | - L M Peters
- Department of Pathobiology and Population Sciences, Royal Veterinary College, Hatfield, AL9 7TA, United Kingdom
| | - Y-M Chang
- Department of Pathobiology and Population Sciences, Royal Veterinary College, Hatfield, AL9 7TA, United Kingdom
| | - M Steele
- Elanco Animal Health, Eli Lilly and Company Ltd., Basingstoke, RG24 9NL, United Kingdom
| | - D Werling
- Department of Pathobiology and Population Sciences, Royal Veterinary College, Hatfield, AL9 7TA, United Kingdom.
| | - A J Gibson
- Department of Pathobiology and Population Sciences, Royal Veterinary College, Hatfield, AL9 7TA, United Kingdom
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Jussila A, Steele M, DiNuoscio G, Hamburg E, Yoon J, Atit R. 439 Mechanism for loss of intradermal fat accompanying skin fibrosis. J Invest Dermatol 2019. [DOI: 10.1016/j.jid.2019.03.515] [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: 10/27/2022]
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14
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McCaughan E, O'Connor S, Flannagan C, Maguire R, Connaghan J, Bamidele O, Ellis S, Steele M, Wittmann D, Thompson S, Jain S, Kirby M, Brady N, Parahoo K. 050 Maximising Sexual Wellbeing after diagnosis of Prostate Cancer. Developing and Testing Support Resources: A Global Approach. J Sex Med 2019. [DOI: 10.1016/j.jsxm.2019.01.061] [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: 10/27/2022]
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Reiners J, Carlin K, Vonnahme K, Steele M, Swanson K. 96 Late-Breaking: Effects of graded amounts of Leucine in milk replacer on neonatal calf growth and nutrient digestibility. J Anim Sci 2018. [DOI: 10.1093/jas/sky404.896] [Citation(s) in RCA: 2] [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: 11/13/2022] Open
Affiliation(s)
- J Reiners
- North Dakota State University,Fargo, ND, United States
| | - K Carlin
- North Dakota State University,Fargo, ND, United States
| | - K Vonnahme
- North Dakota State University,Fargo, ND, United States
| | - M Steele
- Department of Agricultural, Food and Nutritional Science, University of Alberta,Edmonton, AB, Canada
| | - K Swanson
- North Dakota State University,Fargo, ND, United States
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Villot C, Renaud D, Skidmore A, Aguilar A, Chevaux E, Steele M. 239 Effect of Saccharomyces cerevisiae boulardii supplementation on the health and performance of male Holstein calves. J Anim Sci 2018. [DOI: 10.1093/jas/sky404.052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- C Villot
- University of Alberta - Lallemand,Edmonton, AB, Canada
| | - D Renaud
- University of Guelph,Guelph, ON, Canada
| | - A Skidmore
- Lallemand Animal Nutrition,Montreal, QC, Canada
| | - A Aguilar
- Lallemand Animal Nutrition,Montreal, QC, Canada
| | - E Chevaux
- Lallemand Animal Nutrition,Martinsville, IN, United States
| | - M Steele
- Department of Agricultural, Food and Nutritional Science, University of Alberta,Edmonton, AB, Canada
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Paddick K, DeVries T, Schwartzkopf-Genswein K, Steele M, Mutsvangwa T, Penner G. 337 Effect of the quantity of concentrate offered in an automated milking system on dry matter intake, milking frequency, milk and milk component yield, and ruminal fermentation when provided isocaloric diets. J Anim Sci 2018. [DOI: 10.1093/jas/sky404.367] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- K Paddick
- University of Saskatchewan,Saskatoon, SK, Canada
| | - T DeVries
- University of Guelph,Guelph, ON, Canada
| | | | - M Steele
- Department of Agricultural, Food and Nutritional Science, University of Alberta,Edmonton, AB, Canada
| | - T Mutsvangwa
- University of Saskatchewan,Saskatoon, SK, Canada
| | - G Penner
- Department of Animal and Poultry Science, University of Saskatchewan,Saskatoon, SK, Canada
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Watanabe D, Steele M, Doelman J, Penner G. PSXIV-10 Effect of rumen protected Ca-gluconate on the performance, gastrointestinal tract development, digesta composition, and total tract digestibility of lambs. J Anim Sci 2018. [DOI: 10.1093/jas/sky404.960] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- D Watanabe
- University of Saskatchewan,Saskatoon, SK, Canada
| | - M Steele
- Department of Agricultural, Food and Nutritional Science, University of Alberta,Edmonton, AB, Canada
| | - J Doelman
- Trouw Nutrition,Edmonton, AB, Canada
| | - G Penner
- Department of Animal and Poultry Science, University of Saskatchewan,Saskatoon, SK, Canada
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Van Niekerk J, Romao J, Middeldorp M, Steele M. 358 The short and long term effects of weaning on structural and transcriptomic adaptations of the colon in Holstein bull calves fed elevated plane of milk nutrition pre-weaning. J Anim Sci 2018. [DOI: 10.1093/jas/sky404.388] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
| | - J Romao
- University of Alberta,Edmonton, AB, Canada
| | - M Middeldorp
- Animal Nutrition Group, Wageningen UR, The Netherlands, Wageningen, The Nethrlands
| | - M Steele
- Department of Agricultural, Food and Nutritional Science, University of Alberta,Edmonton, AB, Canada
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Welboren A, Hatew-Chuko B, Berends H, Leal L, Martín-Tereso J, Steele M. 345 Energy source of milk replacer affects glucose homeostasis in neonatal calves. J Anim Sci 2018. [DOI: 10.1093/jas/sky404.375] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Affiliation(s)
- A Welboren
- Department of Agricultural, Food and Nutritional Science, University of Alberta,Edmonton, AB, Canada
| | - B Hatew-Chuko
- Department of Agricultural, Food and Nutritional Science, University of Alberta,Edmonton, AB, Canada
| | - H Berends
- Trouw Nutrition Research and Development,Amersfoort, Utrecht, Netherlands
| | - L Leal
- Trouw Nutrition Research and Development,Amersfoort, Utrecht, Netherlands
| | - J Martín-Tereso
- Trouw Nutrition Research and Development,Amersfoort, Utrecht, Netherlands
| | - M Steele
- Department of Agricultural, Food and Nutritional Science, University of Alberta,Edmonton, AB, Canada
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Pyo J, Fischer A, He Z, Haines D, Guan L, Steele M. PSI-37 The effects of delaying initial colostrum feeding on gastrointestinal tract growth of neonatal bull dairy calves. J Anim Sci 2018. [DOI: 10.1093/jas/sky404.414] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- J Pyo
- University of Alberta,Edmonton, AB, Canada
| | - A Fischer
- University of Alberta,Edmonton, AB, Canada
| | - Z He
- Institute of Subtropical Agriculture,Changsha, China (People’s Republic)
| | - D Haines
- Saskatoon Colostrum Co. Ltd.,Saskatoon, SK, Canada
| | - L Guan
- Department of Agricultural, Food and Nutritional Science, University of Alberta,Edmonton, AB, Canada
| | - M Steele
- Department of Agricultural, Food and Nutritional Science, University of Alberta,Edmonton, AB, Canada
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Ma T, Renaud D, Skidmore A, Aguilar A, Chevaux E, Guan L, Steele M. 94 Alteration of fecal bacterial composition in pre-weaned veal calves by supplementation of Saccharomyces cerevisiae boulardii in milk replacer. J Anim Sci 2018. [DOI: 10.1093/jas/sky404.894] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- T Ma
- University of Alberta,Edmonton, AB, Canada
| | - D Renaud
- University of Guelph,Guelph, ON, Canada
| | - A Skidmore
- Lallemand Animal Nutrition,Montreal, QC, Canada
| | - A Aguilar
- Lallemand Animal Nutrition,Martinsville, IN, United States
| | - E Chevaux
- Lallemand Animal Nutrition,Blagnac, France
| | - L Guan
- Department of Agricultural, Food, and Nutritional Science, University of Alberta,Edmonton, AB, Canada
| | - M Steele
- Department of Agricultural, Food, and Nutritional Science, University of Alberta,Edmonton, AB, Canada
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Pyo J, Pletts S, Romao J, Inabu Y, He Z, Haines D, Sugino T, Guan L, Steele M. 342 The effects of extended colostrum feeding on gastrointestinal tract growth of the neonatal dairy calf. J Anim Sci 2018. [DOI: 10.1093/jas/sky404.372] [Citation(s) in RCA: 2] [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: 11/13/2022] Open
Affiliation(s)
- J Pyo
- University of Alberta,Edmonton, AB, Canada
| | - S Pletts
- University of Alberta,Edmonton, AB, Canada
| | - J Romao
- University of Alberta,Edmonton, AB, Canada
| | - Y Inabu
- The Research Center for Animal Science, Graduate School of Biosphere Science, Hiroshima University,Higashihroshima, Japan
| | - Z He
- Institute of Subtropical Agriculture,Changsha, China
| | - D Haines
- Saskatoon Colostrum Co. Ltd.,Saskatoon, SK, Canada
| | - T Sugino
- The Research Center for Animal Science, Graduate School of Biosphere Science, Hiroshima University,Higashihroshima, Japan
| | - L Guan
- Department of Agricultural, Food, and Nutritional Science, University of Alberta,Edmonton, AB, Canada
| | - M Steele
- Department of Agricultural, Food, and Nutritional Science, University of Alberta,Edmonton, AB, Canada
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Hare K, Romao J, Leal L, Hooiveld G, Soberon F, Berends H, Boekschoten M, Van Amburgh M, Martín-Tereso J, Steele M. 136 Increased pre-weaning metabolizable energy supply affects the expression of genes related to adipogenesis and lipid metabolism in the skeletal muscle of prepubertal Holstein heifers. J Anim Sci 2018. [DOI: 10.1093/jas/sky404.767] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- K Hare
- Department of Agricultural, Food and Nutritional Science, Faculty of Agriculture Life and Environmental Sciences, University of Alberta,Saskatoon, SK, Canada
| | - J Romao
- University of Alberta,Edmonton, AB, Canada
| | - L Leal
- Trouw Nutrition Research and Development,Amersfoort, Utrecht, Netherlands
| | - G Hooiveld
- Wageningen University,Wageningen, Netherlands
| | - F Soberon
- Trouw Nutrition,Canandaigua, NY, United States
| | - H Berends
- Trouw Nutrition Research and Development,Amersfoort, Utrecht, Netherlands
| | | | | | - J Martín-Tereso
- Trouw Nutrition Research and Development,Amersfoort, Utrecht, Netherlands
| | - M Steele
- Department of Agricultural, Food and Nutritional Science, University of Alberta,Edmonton, AB, Canada
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Welboren A, Leal L, Steele M, Khan A, Martín-Tereso J. PSXVII-32 Late-Breaking: Weaning of ad libitum fed dairy calves with automated feeders using fixed and individual methods. J Anim Sci 2018. [DOI: 10.1093/jas/sky404.981] [Citation(s) in RCA: 2] [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: 11/14/2022] Open
Affiliation(s)
- A Welboren
- Department of Agricultural, Food and Nutritional Science, University of Alberta,Edmonton, AB, Canada
| | - L Leal
- Trouw Nutrition Research and Development,Amersfoort, Utrecht, Netherlands
| | - M Steele
- Department of Agricultural, Food and Nutritional Science, University of Alberta,Edmonton, AB, Canada
| | - A Khan
- Department of Agricultural, Food and Nutritional Science, University of Alberta,Edmonton, AB, Canada
| | - J Martín-Tereso
- Trouw Nutrition Research and Development,Amersfoort, Utrecht, Netherlands
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Romao J, Leal L, Hooiveld G, Soberon F, Berends H, Boekschoten M, Van Amburgh M, Martín-Tereso J, Steele M. PSXI-13 Nutrient supply alters adipose tissue physiology in pre-weaned calves. J Anim Sci 2018. [DOI: 10.1093/jas/sky404.913] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- J Romao
- University of Alberta,Edmonton, AB, Canada
| | - L Leal
- Trouw Nutrition Research and Development,Amersfoort, Utrecht, Netherlands
| | - G Hooiveld
- Wageningen University,Wageningen, Netherlands
| | - F Soberon
- Trouw Nutrition,Amersfoort, Utrecht, Netherlands
| | - H Berends
- Trouw Nutrition Research and Development,Amersfoort, Utrecht, Netherlands
| | | | | | - J Martín-Tereso
- Trouw Nutrition Research and Development,Amersfoort, Utrecht, Netherlands
| | - M Steele
- Department of Agricultural, Food and Nutritional Science, University of Alberta,Edmonton, AB, Canada
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Roberts T, Steele M, Nunley D. HLA Donor Specific Antibody and HLA Antigen Bias are Independent Risk Factors for Chronic Lung Allograft Dysfunction. J Heart Lung Transplant 2018. [DOI: 10.1016/j.healun.2018.01.1150] [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: 11/15/2022] Open
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Steels E, Steele M, Harold M, Adams L, Coulson S. A double-blind, randomized, placebo-controlled trial evaluating safety and efficacy of an ayurvedic botanical formulation in reducing menopausal symptoms in otherwise healthy women. J Herb Med 2018. [DOI: 10.1016/j.hermed.2018.01.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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Hayes SC, Steele M, Spence R, Gordon L, Battistutta D, Bashford J, Pyke C, Saunders C, Eakin E. Abstract P6-12-01: Can exercise influence survival following breast cancer? Evidence from randomised, controlled trials. Cancer Res 2018. [DOI: 10.1158/1538-7445.sabcs17-p6-12-01] [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
Background: The Exercise for Health (EfH) trials were randomized, controlled trials designed to evaluate an 8-month pragmatic, exercise intervention, commencing 6 weeks post-surgery for women with newly diagnosed breast cancer residing in urban- or rural/regional areas. Outcomes for these exploratory analyses were overall survival (OS), breast cancer-specific survival (BCS) and disease-free survival (DFS). Methods: Consenting urban-residing women (EfH 1, n=194) and rural/regional-residing women (EfH 2, n=143) were randomized to exercise or usual care. Cox proportional hazards models were used to estimate hazard ratios (HR) and 95% confidence intervals (CI) for OS, BCS and DFS (exercise group, n=207, 65% urban women; usual care group, n=130, 46% urban women), with and without adjustment for prognostic factors including trial (urban/rural), age, body mass index, disease stage and presence of comorbidities. Further exploratory subgroup analyses were also conducted to assess whether effect on OS, BCS and DFS differed according to prognostic variables. Results: After a median follow-up of 8.3 years (IQR: 8.0-8.7 years) there were 11 (5.3%) deaths in the exercise group compared with 15 (11.5%) deaths in the usual care group (Table 1).
Table 1 Overall, breast cancer-specific and disease-free survival events by group allocation. All patientsUsual careExercise n=337n = 130n = 207 n (%)n (%)n (%)Breast cancer-related deaths20 (5.9)10 (7.7)10 (4.8)Non-breast cancer-related deaths6 (1.8)5 (3.8)1 (0.5)Overall survival events26 (7.7)15 (11.5)11 (5.3)Recurrence of breast cancer20 (5.9)8 (6.2)12 (5.8)Alive at follow-up9 (2.7)3 (2.3)6 (4.6)Deceased by follow-up11 (3.3)5 (3.1)6 (4.6)New primary breast cancer13 (3.9)5 (3.8)8 (3.9)Alive at follow-up13 (3.9)5 (3.8)8 (6.2)Deceased by follow-up0 (0.0)0 (0.0)0 (0.0)Disease-free survival events*48 (14.2)23 (17.7)25 (12.1)* Disease-free survival events include recurrence of breast cancer, new primary breast cancers, and all-cause deaths. Note that women who had recurrence and died before follow-up only count once towards disease-free survival events.
HRs for the exercise group were: OS: 0.45, 95% CI=0.20-0.96; p=0.04; BCS: 0.61, 95% CI=0.25-1.46, p=0.26; and DFS: 0.66, 95% CI=0.38-1.17; p=0.16 (adjusted analyses yielded similar results). With the exception of BCS for those with a body mass index >30, all HRs for subgroup analyses favored exercise, with effect on OS for women of younger age (<55), those with stage II+ disease, and those with 1+ comorbidity at baseline significant (p<0.05). Effect of exercise on DFS was also significant (p<0.05) for urban women. Conclusion: Findings suggest that an individually-prescribed and monitored exercise program integrated during and beyond treatment for breast cancer, and that was designed to cater for all women, irrespective of place of residence and access to health services, has clear potential to influence survival.
Citation Format: Hayes SC, Steele M, Spence R, Gordon L, Battistutta D, Bashford J, Pyke C, Saunders C, Eakin E. Can exercise influence survival following breast cancer? Evidence from randomised, controlled trials [abstract]. In: Proceedings of the 2017 San Antonio Breast Cancer Symposium; 2017 Dec 5-9; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2018;78(4 Suppl):Abstract nr P6-12-01.
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Affiliation(s)
- SC Hayes
- Queensland University of Technology, Brisbane, Queensland, Australia; QIMR Berghofer Medical Research Institute, Brisbane, Queensland, Australia; Wesley Hospital, Brisbane, Queensland, Australia; Mater Public and Private Hospitals, Brisbane, Queensland, Australia; University of Western Australia, Perth, Western Australia, Australia; University of Queensland, Herston, Queensland, Australia
| | - M Steele
- Queensland University of Technology, Brisbane, Queensland, Australia; QIMR Berghofer Medical Research Institute, Brisbane, Queensland, Australia; Wesley Hospital, Brisbane, Queensland, Australia; Mater Public and Private Hospitals, Brisbane, Queensland, Australia; University of Western Australia, Perth, Western Australia, Australia; University of Queensland, Herston, Queensland, Australia
| | - R Spence
- Queensland University of Technology, Brisbane, Queensland, Australia; QIMR Berghofer Medical Research Institute, Brisbane, Queensland, Australia; Wesley Hospital, Brisbane, Queensland, Australia; Mater Public and Private Hospitals, Brisbane, Queensland, Australia; University of Western Australia, Perth, Western Australia, Australia; University of Queensland, Herston, Queensland, Australia
| | - L Gordon
- Queensland University of Technology, Brisbane, Queensland, Australia; QIMR Berghofer Medical Research Institute, Brisbane, Queensland, Australia; Wesley Hospital, Brisbane, Queensland, Australia; Mater Public and Private Hospitals, Brisbane, Queensland, Australia; University of Western Australia, Perth, Western Australia, Australia; University of Queensland, Herston, Queensland, Australia
| | - D Battistutta
- Queensland University of Technology, Brisbane, Queensland, Australia; QIMR Berghofer Medical Research Institute, Brisbane, Queensland, Australia; Wesley Hospital, Brisbane, Queensland, Australia; Mater Public and Private Hospitals, Brisbane, Queensland, Australia; University of Western Australia, Perth, Western Australia, Australia; University of Queensland, Herston, Queensland, Australia
| | - J Bashford
- Queensland University of Technology, Brisbane, Queensland, Australia; QIMR Berghofer Medical Research Institute, Brisbane, Queensland, Australia; Wesley Hospital, Brisbane, Queensland, Australia; Mater Public and Private Hospitals, Brisbane, Queensland, Australia; University of Western Australia, Perth, Western Australia, Australia; University of Queensland, Herston, Queensland, Australia
| | - C Pyke
- Queensland University of Technology, Brisbane, Queensland, Australia; QIMR Berghofer Medical Research Institute, Brisbane, Queensland, Australia; Wesley Hospital, Brisbane, Queensland, Australia; Mater Public and Private Hospitals, Brisbane, Queensland, Australia; University of Western Australia, Perth, Western Australia, Australia; University of Queensland, Herston, Queensland, Australia
| | - C Saunders
- Queensland University of Technology, Brisbane, Queensland, Australia; QIMR Berghofer Medical Research Institute, Brisbane, Queensland, Australia; Wesley Hospital, Brisbane, Queensland, Australia; Mater Public and Private Hospitals, Brisbane, Queensland, Australia; University of Western Australia, Perth, Western Australia, Australia; University of Queensland, Herston, Queensland, Australia
| | - E Eakin
- Queensland University of Technology, Brisbane, Queensland, Australia; QIMR Berghofer Medical Research Institute, Brisbane, Queensland, Australia; Wesley Hospital, Brisbane, Queensland, Australia; Mater Public and Private Hospitals, Brisbane, Queensland, Australia; University of Western Australia, Perth, Western Australia, Australia; University of Queensland, Herston, Queensland, Australia
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Arbiv OA, Cuvelier G, Klaassen RJ, Fernandez CV, Robitaille N, Steele M, Breakey V, Abish S, Wu J, Sinha R, Silva M, Goodyear L, Jardine L, Lipton JH, Corriveau-Bourque C, Brossard J, Michon B, Ghemlas I, Waespe N, Zlateska B, Sung L, Cada M, Dror Y. Molecular analysis and genotype-phenotype correlation of Diamond-Blackfan anemia. Clin Genet 2017; 93:320-328. [PMID: 29044489 DOI: 10.1111/cge.13158] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2017] [Revised: 10/11/2017] [Accepted: 10/13/2017] [Indexed: 02/03/2023]
Abstract
Diamond-Blackfan anemia (DBA) features hypoplastic anemia and congenital malformations, largely caused by mutations in various ribosomal proteins. The aim of this study was to characterize the spectrum of genetic lesions causing DBA and identify genotypes that correlate with phenotypes of clinical significance. Seventy-four patients with DBA from across Canada were included. Nucleotide-level mutations or large deletions were identified in 10 ribosomal genes in 45 cases. The RPS19 mutation group was associated with higher requirement for chronic treatment for anemia than other DBA groups. Patients with RPS19 mutations, however, were more likely to maintain long-term corticosteroid response without requirement for further chronic transfusions. Conversely, patients with RPL11 mutations were less likely to need chronic treatment. Birth defects, including cardiac, skeletal, hand, cleft lip or palate and genitourinary malformations, also varied among the various genetic groups. Patients with RPS19 mutations had the fewest number of defects, while patients with RPL5 had the greatest number of birth defects. This is the first study to show differences between DBA genetic groups with regards to treatment. Previously unreported differences in the rate and types of birth defects were also identified. These data allow better patient counseling, a more personalized monitoring plan, and may also suggest differential functions of DBA genes on ribosome and extra-ribosomal functions.
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Affiliation(s)
- O A Arbiv
- Program in Genetics and Genome Biology, Research Institute, The Hospital for Sick Children, Toronto, Canada
| | - G Cuvelier
- Division of Haematology/Oncology, CancerCare Manitoba, Winnipeg, Canada
| | - R J Klaassen
- Division of Haematology/Oncology, Children's Hospital of Eastern Ontario, Ottawa, Canada
| | - C V Fernandez
- Division of Haematology/Oncology, IWK Health Centre, Halifax, Canada
| | - N Robitaille
- Division of Haematology/Oncology, CHU Sainte Justine, Montreal, Canada
| | - M Steele
- Division of Haematology/Oncology, Alberta Children's Hospital, Calgary, Canada
| | - V Breakey
- Division of Haematology/Oncology, McMaster Children's Hospital, Hamilton, Canada
| | - S Abish
- Division of Haematology/Oncology, Montreal Children's Hospital, Montreal, Canada
| | - J Wu
- Division of Haematology/Oncology, British Columbia Children's Hospital, Vancouver, Canada
| | - R Sinha
- Division of Haematology/Oncology, University of Saskatchewan, Saskatoon, Canada
| | - M Silva
- Division of Haematology/Oncology, Queen's University, Kingston, Canada
| | - L Goodyear
- Division of Haematology/Oncology, Janeway Child Health Centre, St. John's, Canada
| | - L Jardine
- Division of Haematology/Oncology, Children's Hospital of Western Ontario, London, Canada
| | - J H Lipton
- Department of Haematology and Internal Medicine, Princess Margaret Hospital, Toronto, Canada
| | - C Corriveau-Bourque
- Division of Haematology/Oncology, University of Alberta Health Sciences Centre, Edmonton, Canada
| | - J Brossard
- Division of Haematology/Oncology, Centre Y Sante L'Estrie-Fleur, Sherbrooke, Canada
| | - B Michon
- Division of Haematology/Oncology, Centre Hospitalier de l'Université Laval, Quebec City, Canada
| | - I Ghemlas
- Program in Genetics and Genome Biology, Research Institute, The Hospital for Sick Children, Toronto, Canada.,Division of Haematology/Oncology, King Faisal Specialist Hospital and Research Center, Riyadh, Saudi Arabia
| | - N Waespe
- Program in Genetics and Genome Biology, Research Institute, The Hospital for Sick Children, Toronto, Canada.,The Marrow Failure and Myelodysplasia Program, Haematology Section, Division of Haematology/Oncology, Department of Paediatrics, The Hospital for Sick Children, Toronto, Canada
| | - B Zlateska
- Program in Genetics and Genome Biology, Research Institute, The Hospital for Sick Children, Toronto, Canada.,The Marrow Failure and Myelodysplasia Program, Haematology Section, Division of Haematology/Oncology, Department of Paediatrics, The Hospital for Sick Children, Toronto, Canada
| | - L Sung
- Program in Child Health and Evaluative Medicine, Research Institute, The Hospital for Sick Children, Toronto, Canada.,Lymphoma Leukemia Section, Division of Haematology/Oncology, Department of Paediatrics, The Hospital for Sick Children, Toronto, Canada
| | - M Cada
- The Marrow Failure and Myelodysplasia Program, Haematology Section, Division of Haematology/Oncology, Department of Paediatrics, The Hospital for Sick Children, Toronto, Canada
| | - Y Dror
- Program in Genetics and Genome Biology, Research Institute, The Hospital for Sick Children, Toronto, Canada.,The Marrow Failure and Myelodysplasia Program, Haematology Section, Division of Haematology/Oncology, Department of Paediatrics, The Hospital for Sick Children, Toronto, Canada.,Institute of Medical Sciences, University of Toronto, Toronto, Canada
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Ferrari M, Dal Cin M, Steele M. Self-compassion is associated with optimum self-care behaviour, medical outcomes and psychological well-being in a cross-sectional sample of adults with diabetes. Diabet Med 2017; 34:1546-1553. [PMID: 28799282 DOI: 10.1111/dme.13451] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [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] [Accepted: 08/08/2017] [Indexed: 11/30/2022]
Abstract
AIM To investigate the role of self-compassion in diabetes outcomes. Self-compassion is a construct which may be relevant to chronic conditions, given its focus on compassion toward oneself, especially in times of difficulty. METHODS In this cross-sectional study we collected data online from 310 adults diagnosed with diabetes. The questionnaire measured three primary outcomes: self-management behaviours; HbA1c levels and psychological well-being. Potential predictors were also assessed, including self-compassion, locus of control, social support and demographics. RESULTS Multiple regression analyses showed that self-compassion had the most consistent association with better outcomes, including all forms of self-management behaviour, HbA1c levels and psychological well-being. Self-compassion was independently associated with 55.1% of the variance in well-being. Internal locus of control was also significantly associated with better well-being and HbA1c outcomes. Chance and external locus of control and social support were generally associated with poorer outcomes. CONCLUSIONS Higher levels of self-compassion are typically associated with improved self-management behaviour, medical outcomes and psychological well-being in adults with diabetes mellitus. The present findings suggest that self-compassion may be a parsimonious and suitable intervention target. Future interventions and consultations with medical professionals may benefit from fostering self-compassion in adults with diabetes mellitus.
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Affiliation(s)
- M Ferrari
- School of Psychology, Australian Catholic University, Strathfield, New South Wales, Australia
- School of Psychology, University of Sydney, Sydney, New South Wales, Australia
| | - M Dal Cin
- School of Psychology, Australian Catholic University, Strathfield, New South Wales, Australia
| | - M Steele
- School of Allied Health, Australian Catholic University, Brisbane, Queensland, Australia
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Vetter M, Bosco A, Anderson S, Breen K, Romero C, Steele M, Chiodo V, Boye S, Hauswirth W, Tomlinson S. Contribution of microglia and complement activation to glaucoma progression. Acta Ophthalmol 2017. [DOI: 10.1111/j.1755-3768.2017.03621] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Affiliation(s)
- M. Vetter
- Department of Neurobiology and Anatomy; University of Utah; Salt Lake City UT United States
| | - A. Bosco
- Department of Neurobiology and Anatomy; University of Utah; Salt Lake City UT United States
| | - S. Anderson
- Department of Neurobiology and Anatomy; University of Utah; Salt Lake City UT United States
| | - K. Breen
- Department of Neurobiology and Anatomy; University of Utah; Salt Lake City UT United States
| | - C. Romero
- Department of Neurobiology and Anatomy; University of Utah; Salt Lake City UT United States
| | - M. Steele
- Department of Neurobiology and Anatomy; University of Utah; Salt Lake City UT United States
| | - V. Chiodo
- Department of Ophthalmology; University of Florida; Gainesville FL United States
| | - S. Boye
- Department of Ophthalmology; University of Florida; Gainesville FL United States
| | - W. Hauswirth
- Department of Ophthalmology; University of Florida; Gainesville FL United States
| | - S. Tomlinson
- Department of Microbiology& Immunology; Medical University of South Carolina; Charleston SC United States
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Steele M, Steele H, Beebe B. Applying an attachment and microanalytic lens to “embodied mentalization”: Commentary on “Mentalizing homeostasis: the social origins of interoceptive inference” by Fotopoulou and Tsakiris. ACTA ACUST UNITED AC 2017. [DOI: 10.1080/15294145.2017.1295218] [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: 10/20/2022]
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Steele M, Shazali SA, Cutler RR, Idris A. High prevalence of multiple drug resistant staphylococci observed in macaque-populated locations in Brunei Darussalam. Trop Biomed 2017; 34:32-36. [PMID: 33592977] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The spread of antibiotic resistant bacteria is a growing problem worldwide. Staphylococci bacteria is recognized as a genus of bacteria often closely related to human and animal hosts. Macaques are one type of non-human primate host that could potentially spread antibiotic resistant bacteria in an environment in close proximity to humans. Bacteria isolated from locations in Brunei Darussalam with and without the presence of long-tailed macaques revealed the existence of multiple drug resistant staphylococci bacteria with a higher prevalence observed in locations with a presence of long-tailed macaques. These findings have important zoonotic implications on infectious disease control and surveillance in public spaces frequented by macaques.
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Affiliation(s)
- M Steele
- Faculty of Science, Mathematics Department, Universiti Brunei Darussalam, Brunei Darussalam, BE1410
- School of Allied Health, Faculty of Health Sciences, Australian Catholic University, Australia
| | - S A Shazali
- PAPRSB Institute of Health Sciences, Universiti Brunei Darussalam, Brunei Darussalam, BE1410
| | - R R Cutler
- School of Chemical and Biological Sciences, Queen Mary University of London, United Kingdom, E1 4NS
| | - A Idris
- PAPRSB Institute of Health Sciences, Universiti Brunei Darussalam, Brunei Darussalam, BE1410
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Steele M, Meale SJ, Wood K, Penner GB. 1033 From pre- to post-weaning: the adaptations of the gastrointestinal tract of the young calf. J Anim Sci 2016. [DOI: 10.2527/jam2016-1033] [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: 11/13/2022] Open
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Haisan J, Oba M, Ambrose DJ, Steele M. 1302 The effects of a high- or low-plane of nutrition pre-weaning on growth and starter intake of group-housed calves. J Anim Sci 2016. [DOI: 10.2527/jam2016-1302] [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: 11/13/2022] Open
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MacPherson JAR, Haisan J, Meale SJ, Pletts SI, Steele M. 0726 Effect of increasing milk feeding frequency of an elevated plane of nutrition on glucose and insulin kinetics in male Holstein calves both before and after weaning. J Anim Sci 2016. [DOI: 10.2527/jam2016-0726] [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: 11/13/2022] Open
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Meale SJ, Li S, Azevedo P, Derakhshani H, Plaizier JC, Steele M, Khafipour E. 1614 Does weaning age affect the development of ruminal and fecal microbiomes in dairy calves? J Anim Sci 2016. [DOI: 10.2527/jam2016-1614] [Citation(s) in RCA: 2] [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: 11/13/2022] Open
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Ananda S, Wong H, Faragher I, Jones IT, Steele M, Kosmider S, Desai J, Tie J, Field K, Wong R, Tran B, Bae S, Gibbs P. Survival impact of the Australian National Bowel Cancer Screening Programme. Intern Med J 2016; 46:166-71. [DOI: 10.1111/imj.12916] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2015] [Revised: 09/13/2015] [Accepted: 09/18/2015] [Indexed: 12/31/2022]
Affiliation(s)
- S. Ananda
- Department of Medical Oncology; Royal Melbourne Hospital; Melbourne Victoria Australia
- Department of Medical Oncology; Western Health; Melbourne Victoria Australia
| | - H. Wong
- Department of Medical Oncology; Royal Melbourne Hospital; Melbourne Victoria Australia
- Research; Walter and Eliza Hall Institute,; Melbourne Victoria Australia
| | - I. Faragher
- Department of Medical Oncology; Western Health; Melbourne Victoria Australia
| | - I. T. Jones
- Department of Medical Oncology; Royal Melbourne Hospital; Melbourne Victoria Australia
| | - M. Steele
- Department of Surgery; Eastern Health- Box Hill Hospital; Melbourne Victoria Australia
| | - S. Kosmider
- Department of Medical Oncology; Western Health; Melbourne Victoria Australia
| | - J. Desai
- Department of Medical Oncology; Royal Melbourne Hospital; Melbourne Victoria Australia
- Research; Walter and Eliza Hall Institute,; Melbourne Victoria Australia
| | - J. Tie
- Department of Medical Oncology; Royal Melbourne Hospital; Melbourne Victoria Australia
- Department of Medical Oncology; Western Health; Melbourne Victoria Australia
- Research; Walter and Eliza Hall Institute,; Melbourne Victoria Australia
| | - K. Field
- Department of Medical Oncology; Royal Melbourne Hospital; Melbourne Victoria Australia
| | - R. Wong
- Department of Surgery; Eastern Health- Box Hill Hospital; Melbourne Victoria Australia
| | - B. Tran
- Department of Medical Oncology; Royal Melbourne Hospital; Melbourne Victoria Australia
- Department of Medical Oncology; Western Health; Melbourne Victoria Australia
- Research; Walter and Eliza Hall Institute,; Melbourne Victoria Australia
| | - S. Bae
- Research; BioGrid Australia; Melbourne Victoria Australia
| | - P. Gibbs
- Department of Medical Oncology; Royal Melbourne Hospital; Melbourne Victoria Australia
- Department of Medical Oncology; Western Health; Melbourne Victoria Australia
- Research; Walter and Eliza Hall Institute,; Melbourne Victoria Australia
- Research; BioGrid Australia; Melbourne Victoria Australia
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Slutsky J, Jadva V, Freeman T, Persaud S, Kramer W, Steele M, Steele H, Golombok S. Integrating donor conception into identity: parent-child relationships and identity development in donor-conceived adolescents. Fertil Steril 2015. [DOI: 10.1016/j.fertnstert.2015.07.1123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Persaud S, Freeman T, Jadva V, Slutsky J, Kramer W, Steele M, Steele H, Golombok S. Adolescents conceived through donor insemination: an in-depth qualitative study of the experiences of contacting and meeting donor offspring. Fertil Steril 2015. [DOI: 10.1016/j.fertnstert.2015.07.1121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Larson KL, Nelson KC, Samples SR, Hall SJ, Bettez N, Cavender-Bares J, Groffman PM, Grove M, Heffernan JB, Hobbie SE, Learned J, Morse JL, Neill C, Ogden LA, O’Neil-Dunne J, Pataki DE, Polsky C, Chowdhury RR, Steele M, Trammell TLE. Ecosystem services in managing residential landscapes: priorities, value dimensions, and cross-regional patterns. Urban Ecosyst 2015. [DOI: 10.1007/s11252-015-0477-1] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Barrett DC, Steele M, Overton MW. Managing energy balance in the transition cow. Vet Rec 2014; 174:655-6. [PMID: 24970633 DOI: 10.1136/vr.g4178] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Affiliation(s)
- D C Barrett
- University of Bristol, Langford House, Langford, Bristol BS40 5DU, UK e-mail:
| | - M Steele
- Elanco Animal Health, Lilly House, Priestley Road, Basingstoke RG24 9NL, UK e-mail:
| | - M W Overton
- Elanco Animal Health, 2500 Innovation Way, Greenfield, Indiana 46140, USA e-mail:
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Jacobson D, Steele M, Kozer E, Balis C, Cheng J, Rosenbloom E. 185: Subjective Fever Assessment in Children by Palpation – Are Fathers as Reliable as Mothers? Paediatr Child Health 2014. [DOI: 10.1093/pch/19.6.e35-181] [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: 11/14/2022] Open
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Laslett M, Steele M, Hing W, McNair P, Cadogan A. Shoulder pain patients in primary care – Part 1: Clinical outcomes over 12 months following standardized diagnostic workup, corticosteroid injections, and community-based care. J Rehabil Med 2014; 46:898-907. [DOI: 10.2340/16501977-1860] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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Chroinin DN, Cullen W, Kyne L, Carberry C, Last J, Molphy A, Nevin E, Steele M, Bury G, Wilkinson I. Education and training. Age Ageing 2013. [DOI: 10.1093/ageing/aft099] [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: 11/14/2022] Open
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Dixon JJ, Steele M, Makanjuola AD. Anti-microbial locks increase the prevalence of Staphylococcus aureus and antibiotic-resistant Enterobacter: observational retrospective cohort study. Nephrol Dial Transplant 2012; 27:3575-81. [DOI: 10.1093/ndt/gfs081] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
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Ladner DA, Steele M, Weir A, Hristovski K, Westerhoff P. Functionalized nanoparticle interactions with polymeric membranes. J Hazard Mater 2012; 211-212:288-95. [PMID: 22177020 PMCID: PMC3307946 DOI: 10.1016/j.jhazmat.2011.11.051] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2011] [Revised: 11/13/2011] [Accepted: 11/14/2011] [Indexed: 05/04/2023]
Abstract
A series of experiments was performed to measure the retention of a class of functionalized nanoparticles (NPs) on porous (microfiltration and ultrafiltration) membranes. The findings impact engineered water and wastewater treatment using membrane technology, characterization and analytical schemes for NP detection, and the use of NPs in waste treatment scenarios. The NPs studied were composed of silver, titanium dioxide, and gold; had organic coatings to yield either positive or negative surface charge; and were between 2 and 10nm in diameter. NP solutions were applied to polymeric membranes composed of different materials and pore sizes (ranging from ≈ 2 nm [3 kDa molecular weight cutoff] to 0.2 μm). Greater than 99% rejection was observed of positively charged NPs by negatively charged membranes even though pore diameters were up to 20 times the NP diameter; thus, sorption caused rejection. Negatively charged NPs were less well rejected, but behavior was dependent not only on surface functionality but on NP core material (Ag, TiO(2), or Au). NP rejection depended more upon NP properties than membrane properties; all of the negatively charged polymeric membranes behaved similarly. The NP-membrane interaction behavior fell into four categories, which are defined and described here.
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Affiliation(s)
- D A Ladner
- Clemson University, Department of Environmental Engineering and Earth Sciences, Clemson, South Carolina, USA.
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Brown C, Adekoya A, Steele M, Edwards-Bennett S. Racial and ethnic disparities in ovarian cancer at a multidisciplinary cancer center. Gynecol Oncol 2012. [DOI: 10.1016/j.ygyno.2011.12.276] [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: 10/28/2022]
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Hashmi SK, Allen C, Klaassen R, Fernandez CV, Yanofsky R, Shereck E, Champagne J, Silva M, Lipton JH, Brossard J, Samson Y, Abish S, Steele M, Ali K, Dower N, Athale U, Jardine L, Hand JP, Beyene J, Dror Y. Comparative analysis of Shwachman-Diamond syndrome to other inherited bone marrow failure syndromes and genotype-phenotype correlation. Clin Genet 2011; 79:448-58. [PMID: 20569259 DOI: 10.1111/j.1399-0004.2010.01468.x] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Our knowledge of the phenotypes of inherited bone marrow failure syndromes (IBMFSs) derives from case reports or case series in which only one IBMFS was studied. However, the substantial phenotypic overlap necessitates comparative analysis between the IBMFSs. Shwachman-Diamond syndrome (SDS) is an IBMFS that the appreciation of what comprises its clinical phenotype is still evolving. In this analysis we used data on 125 patients from the Canadian Inherited Marrow Failure Study (CIMFS), which is a prospective multicenter population-based study. Thirty-four cases of SDS patients were analyzed and compared to other patients with the four most common IBMFSs on the CIMFS: Diamond Blackfan anemia, Fanconi anemia (FA), Kostmann/severe congenital neutropenia and dyskeratosis congenita (DC). The diagnosis of SDS, FA and DC was often delayed relative to symptoms onset; indicating a major need for improving tools to establish a rapid diagnosis. We identified multiple phenotypic differences between SDS and other IBMFSs, including several novel differences. SBDS biallelic mutations were less frequent than in previous reports (81%). Importantly, compared to patients with biallelic mutations, patients with wild type SBDS had more severe hematological disease but milder pancreatic disease. In conclusion, comprehensive study of the IBMFSs can provide useful comparative data between the disorders. SBDS-negative SDS patients may have more severe hematological failure and milder pancreatic disease.
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Affiliation(s)
- S K Hashmi
- Marrow Failure and Myelodysplasia Program, Division of Haematology/ Oncology and Cell Biology Program, Research Institute, The Hospital for Sick Children and University of Toronto, Toronto, Ontario, Canada
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