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Moles E, Chang DW, Mansfeld FM, Duly A, Kimpton K, Logan A, Howard CB, Thurecht KJ, Kavallaris M. EGFR Targeting of Liposomal Doxorubicin Improves Recognition and Suppression of Non-Small Cell Lung Cancer. Int J Nanomedicine 2024; 19:3623-3639. [PMID: 38660023 PMCID: PMC11042481 DOI: 10.2147/ijn.s450534] [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] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2023] [Accepted: 03/23/2024] [Indexed: 04/26/2024] Open
Abstract
Introduction Despite improvements in chemotherapy and molecularly targeted therapies, the life expectancy of patients with advanced non-small cell lung cancer (NSCLC) remains less than 1 year. There is thus a major global need to advance new treatment strategies that are more effective for NSCLC. Drug delivery using liposomal particles has shown success at improving the biodistribution and bioavailability of chemotherapy. Nevertheless, liposomal drugs lack selectivity for the cancer cells and have a limited ability to penetrate the tumor site, which severely limits their therapeutic potential. Epidermal growth factor receptor (EGFR) is overexpressed in NSCLC tumors in about 80% of patients, thus representing a promising NSCLC-specific target for redirecting liposome-embedded chemotherapy to the tumor site. Methods Herein, we investigated the targeting of PEGylated liposomal doxorubicin (Caelyx), a powerful off-the-shelf antitumoral liposomal drug, to EGFR as a therapeutic strategy to improve the specific delivery and intratumoral accumulation of chemotherapy in NSCLC. EGFR-targeting of Caelyx was enabled through its complexing with a polyethylene glycol (PEG)/EGFR bispecific antibody fragment. Tumor targeting and therapeutic potency of our treatment approach were investigated in vitro using a panel of NSCLC cell lines and 3D tumoroid models, and in vivo in a cell line-derived tumor xenograft model. Results Combining Caelyx with our bispecific antibody generated uniform EGFR-targeted particles with improved binding and cytotoxic efficacy toward NSCLC cells. Effects were exclusive to cancer cells expressing EGFR, and increments in efficacy positively correlated with EGFR density on the cancer cell surface. The approach demonstrated increased penetration within 3D spheroids and was effective at targeting and suppressing the growth of NSCLC tumors in vivo while reducing drug delivery to the heart. Conclusion EGFR targeting represents a successful approach to enhance the selectivity and therapeutic potency of liposomal chemotherapy toward NSCLC.
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Affiliation(s)
- Ernest Moles
- Children’s Cancer Institute, Lowy Cancer Research Centre, UNSW, Sydney, NSW, 2052, Australia
- UNSW Australian Centre for Nanomedicine, Faculty of Engineering, UNSW, Sydney, NSW, 2052, Australia
- School of Clinical Medicine, Faculty of Medicine & Health, UNSW, Sydney, NSW, 2052, Australia
- UNSW RNA Institute, Faculty of Science, UNSW, Sydney, NSW, 2052, Australia
| | - David W Chang
- Children’s Cancer Institute, Lowy Cancer Research Centre, UNSW, Sydney, NSW, 2052, Australia
- UNSW Australian Centre for Nanomedicine, Faculty of Engineering, UNSW, Sydney, NSW, 2052, Australia
- School of Clinical Medicine, Faculty of Medicine & Health, UNSW, Sydney, NSW, 2052, Australia
| | - Friederike M Mansfeld
- Children’s Cancer Institute, Lowy Cancer Research Centre, UNSW, Sydney, NSW, 2052, Australia
- UNSW Australian Centre for Nanomedicine, Faculty of Engineering, UNSW, Sydney, NSW, 2052, Australia
- School of Clinical Medicine, Faculty of Medicine & Health, UNSW, Sydney, NSW, 2052, Australia
| | - Alastair Duly
- Children’s Cancer Institute, Lowy Cancer Research Centre, UNSW, Sydney, NSW, 2052, Australia
- UNSW Australian Centre for Nanomedicine, Faculty of Engineering, UNSW, Sydney, NSW, 2052, Australia
| | - Kathleen Kimpton
- Children’s Cancer Institute, Lowy Cancer Research Centre, UNSW, Sydney, NSW, 2052, Australia
| | - Amy Logan
- Children’s Cancer Institute, Lowy Cancer Research Centre, UNSW, Sydney, NSW, 2052, Australia
- UNSW Australian Centre for Nanomedicine, Faculty of Engineering, UNSW, Sydney, NSW, 2052, Australia
- School of Clinical Medicine, Faculty of Medicine & Health, UNSW, Sydney, NSW, 2052, Australia
- UNSW RNA Institute, Faculty of Science, UNSW, Sydney, NSW, 2052, Australia
| | - Christopher B Howard
- Australian Institute for Bioengineering and Nanotechnology (AIBN), The University of Queensland, St Lucia, QLD, 4072, Australia
| | - Kristofer J Thurecht
- Australian Institute for Bioengineering and Nanotechnology (AIBN), The University of Queensland, St Lucia, QLD, 4072, Australia
- Centre for Advanced Imaging, ARC Training Centre for Innovation in Biomedical Imaging Technologies, University of Queensland, St Lucia, QLD, 4072, Australia
| | - Maria Kavallaris
- Children’s Cancer Institute, Lowy Cancer Research Centre, UNSW, Sydney, NSW, 2052, Australia
- UNSW Australian Centre for Nanomedicine, Faculty of Engineering, UNSW, Sydney, NSW, 2052, Australia
- School of Clinical Medicine, Faculty of Medicine & Health, UNSW, Sydney, NSW, 2052, Australia
- UNSW RNA Institute, Faculty of Science, UNSW, Sydney, NSW, 2052, Australia
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Hewa Nadugala B, Hepworth G, Mazzonetto M, Nebl T, Pagel CN, Raynes JK, Ranadheera CS, Logan A. Effect of composition, casein genetic variants and glycosylation degree on bovine milk whipping properties. Food Res Int 2024; 179:113949. [PMID: 38342518 DOI: 10.1016/j.foodres.2024.113949] [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: 10/08/2023] [Revised: 12/21/2023] [Accepted: 01/02/2024] [Indexed: 02/13/2024]
Abstract
This study investigated the individual and combined effects of ĸ-Casein (ĸ-CN; AA, AB, BB), β-Casein (β-CN; A1A1, A1A2, A2A2) and high and low ratios of glycosylated ĸ-CN to total ĸ-CN, referred to as the glycosylation degree (GD), on bovine cream whipping properties. The genetic variants of individual cows were identified using reversed-phase high-performance liquid chromatography (RP-HPLC) and verified through liquid chromatography-mass spectrometry (LC-MS). A previously discovered relationship between days-in-milk and GD was validated and used to obtain high and low GD milk. Whipped creams were created through the mechanical agitation of fat standardised cream from milk of different ĸ-CN, β-CN, and GD combinations, and whipping properties (the ability to whip, overrun, whipping time and firmness) were evaluated. No significant correlation was measured in whipping properties for cream samples from milks with different ĸ-CN and β-CN genetic variants. However, 80 % of samples exhibiting good whipping properties (i.e., the production of a stiffened peak) were from milk with low GD suggesting a correlation between whipping properties and levels of glycosylation. Moreover, cream separated from skim milk of larger casein micelle size showed superior whipping properties with shorter whipping times (<5 min), and higher firmness and overrun. Milk fat globule (MFG) size, on the other hand, did not affect whipping properties. Results indicate that the GD of κ-CN and casein micelle size may play a role in MFG adsorption at the protein and air interface of air bubbles formed during whipping; hence, they govern the dynamics of fat network formation and influencing whipping properties.
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Affiliation(s)
- Barana Hewa Nadugala
- School of Agriculture, Food & Ecosystem Sciences, Faculty of Science, University of Melbourne, VIC 3010, Australia; CSIRO Agriculture and Food, Werribee, Victoria 3030, Australia.
| | - Graham Hepworth
- Statistical Consulting Centre, The University of Melbourne, Parkville, Victoria 3010, Australia.
| | | | - Tom Nebl
- Biology Group, Biomedical Manufacturing Program, CSIRO, Clayton, VIC 3168, Australia.
| | - Charles N Pagel
- Melbourne Veterinary School, Faculty of Science, The University of Melbourne, VIC 3010, Australia.
| | | | - C S Ranadheera
- School of Agriculture, Food & Ecosystem Sciences, Faculty of Science, University of Melbourne, VIC 3010, Australia.
| | - Amy Logan
- CSIRO Agriculture and Food, Werribee, Victoria 3030, Australia.
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Logan A, Howard CB, Huda P, Kimpton K, Ma Z, Thurecht KJ, McCarroll JA, Moles E, Kavallaris M. Targeted delivery of polo-like kinase 1 siRNA nanoparticles using an EGFR-PEG bispecific antibody inhibits proliferation of high-risk neuroblastoma. J Control Release 2024; 367:806-820. [PMID: 38341177 DOI: 10.1016/j.jconrel.2024.02.007] [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: 06/28/2023] [Revised: 02/02/2024] [Accepted: 02/07/2024] [Indexed: 02/12/2024]
Abstract
High-risk neuroblastoma has poor survival due to treatment failure and off-target side effects of therapy. Small molecule inhibitors have shown therapeutic efficacy at targeting oncogenic cell cycle dysregulators, such as polo-like kinase 1 (PLK1). However, their clinical success is limited by a lack of efficacy and specificity, causing off-target toxicity. Herein, we investigate a new treatment strategy whereby a bispecific antibody (BsAb) with dual recognition of methoxy polyethylene glycol (PEG) and a neuroblastoma cell-surface receptor, epidermal growth factor receptor (EGFR), is combined with a PEGylated small interfering RNA (siRNA) lipid nanoparticle, forming BsAb-nanoparticle RNA-interference complexes for targeted PLK1 inhibition against high-risk neuroblastoma. Therapeutic efficacy of this strategy was explored in neuroblastoma cell lines and a tumor xenograft model. Using ionizable lipid-based nanoparticles as a low-toxicity and clinically safe approach for siRNA delivery, we identified that their complexing with EGFR-PEG BsAb resulted in increases in cell targeting (1.2 to >4.5-fold) and PLK1 gene silencing (>2-fold) against EGFR+ high-risk neuroblastoma cells, and enhancements correlated with EGFR expression on the cells (r > 0.94). Through formulating nanoparticles with PEG-lipids ranging in diffusivity, we further identified a highly diffusible PEG-lipid which provided the most pronounced neuroblastoma cell binding, PLK1 silencing, and significantly reduced cancer growth in vitro in high-risk neuroblastoma cell cultures and in vivo in a tumor-xenograft mouse model of the disease. Together, this work provides an insight on the role of PEG-lipid diffusivity and EGFR targeting as potentially relevant variables influencing the therapeutic efficacy of siRNA nanoparticles in high-risk neuroblastoma.
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Affiliation(s)
- Amy Logan
- Children's Cancer Institute, Lowy Cancer Research Centre, UNSW, Sydney, NSW 2052, Australia; UNSW Australian Centre for Nanomedicine, Faculty of Engineering, UNSW, Sydney, NSW 2052, Australia; School of Clinical Medicine, Faculty of Medicine & Health, UNSW, Sydney, NSW 2052, Australia; UNSW RNA Institute, Faculty of Science, UNSW, Sydney, NSW 2052, Australia; UNSW Centre for Childhood Cancer Research, UNSW, Sydney, NSW 2052, Australia
| | - Christopher B Howard
- Australian Institute for Bioengineering and Nanotechnology (AIBN), The University of Queensland, St Lucia, QLsD, 4072, Australia
| | - Pie Huda
- Australian Institute for Bioengineering and Nanotechnology (AIBN), The University of Queensland, St Lucia, QLsD, 4072, Australia
| | - Kathleen Kimpton
- Children's Cancer Institute, Lowy Cancer Research Centre, UNSW, Sydney, NSW 2052, Australia; School of Clinical Medicine, Faculty of Medicine & Health, UNSW, Sydney, NSW 2052, Australia
| | - Zerong Ma
- Children's Cancer Institute, Lowy Cancer Research Centre, UNSW, Sydney, NSW 2052, Australia; UNSW Australian Centre for Nanomedicine, Faculty of Engineering, UNSW, Sydney, NSW 2052, Australia; School of Clinical Medicine, Faculty of Medicine & Health, UNSW, Sydney, NSW 2052, Australia; UNSW RNA Institute, Faculty of Science, UNSW, Sydney, NSW 2052, Australia
| | - Kristofer J Thurecht
- Australian Institute for Bioengineering and Nanotechnology (AIBN), The University of Queensland, St Lucia, QLsD, 4072, Australia; Centre for Advanced Imaging, ARC Training Centre for Innovation in Biomedical Imaging Technologies, University of Queensland, St Lucia, QLD 4072, Australia
| | - Joshua A McCarroll
- Children's Cancer Institute, Lowy Cancer Research Centre, UNSW, Sydney, NSW 2052, Australia; UNSW Australian Centre for Nanomedicine, Faculty of Engineering, UNSW, Sydney, NSW 2052, Australia; School of Clinical Medicine, Faculty of Medicine & Health, UNSW, Sydney, NSW 2052, Australia; UNSW RNA Institute, Faculty of Science, UNSW, Sydney, NSW 2052, Australia
| | - Ernest Moles
- Children's Cancer Institute, Lowy Cancer Research Centre, UNSW, Sydney, NSW 2052, Australia; UNSW Australian Centre for Nanomedicine, Faculty of Engineering, UNSW, Sydney, NSW 2052, Australia; School of Clinical Medicine, Faculty of Medicine & Health, UNSW, Sydney, NSW 2052, Australia; UNSW RNA Institute, Faculty of Science, UNSW, Sydney, NSW 2052, Australia.
| | - Maria Kavallaris
- Children's Cancer Institute, Lowy Cancer Research Centre, UNSW, Sydney, NSW 2052, Australia; UNSW Australian Centre for Nanomedicine, Faculty of Engineering, UNSW, Sydney, NSW 2052, Australia; School of Clinical Medicine, Faculty of Medicine & Health, UNSW, Sydney, NSW 2052, Australia; UNSW RNA Institute, Faculty of Science, UNSW, Sydney, NSW 2052, Australia.
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Masiá C, Ong L, Logan A, Stockmann R, Gambetta J, Jensen PE, Rahimi Yazdi S, Gras S. Enhancing the textural and rheological properties of fermentation-induced pea protein emulsion gels with transglutaminase. Soft Matter 2023; 20:133-143. [PMID: 38054382 DOI: 10.1039/d3sm01001e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/07/2023]
Abstract
The aim of this study was to assess how transglutaminase (TG) impacts the microstructure, texture, and rheological properties of fermentation-induced pea protein emulsion gels. Additionally, the study examined the influence of storage time on the functional properties of these gels. Fermentation-induced pea protein gels were produced in the presence or absence of TG and stored for 1, 4, 8, 12, and 16 weeks. Texture analysis, rheological measurements, moisture content and microstructure evaluation with confocal laser scanning microscopy (CLSM) and 3D image analysis were conducted to explore the effects of TG on the structural and rheological properties of the fermented samples. The porosity of the protein networks in the pea gels decreased in the presence of TG, the storage modulus increased and the textural characteristics were significantly improved, resulting in harder and more springy gels. The gel porosity increased in gels with and without TG after storage but the effect of storage on textural and rheological properties was limited, indicating limited structural rearrangement once the fermentation-induced pea protein emulsion gels are formed. Greater coalescence was observed for oil droplets within the gel matrix after 16 weeks of storage in the absence of TG, consistent with these protein structures being weaker than the more structurally stable TG-treated gels. This study shows that TG treatment is a powerful tool to enhance the textural and rheological properties of fermentation-induced pea protein emulsion gels.
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Affiliation(s)
- Carmen Masiá
- Department of Food Science, University of Copenhagen, Rolighedsvej 26, 1958 Frederiksberg, Denmark.
- Plant Based Application Department, Chr. Hansen A/S, Bøge Alle 10-12, 2970 Hørsholm, Denmark
- The Bio21 Molecular Science and Biotechnology Institute, The University of Melbourne, Parkville, VIC 3010, Australia
- CSIRO Agriculture and Food, 671 Sneydes Road, Werribee, Victoria 3030, Australia
| | - Lydia Ong
- The Bio21 Molecular Science and Biotechnology Institute, The University of Melbourne, Parkville, VIC 3010, Australia
| | - Amy Logan
- CSIRO Agriculture and Food, 671 Sneydes Road, Werribee, Victoria 3030, Australia
| | - Regine Stockmann
- CSIRO Agriculture and Food, 671 Sneydes Road, Werribee, Victoria 3030, Australia
| | - Joanna Gambetta
- CSIRO Agriculture and Food, 671 Sneydes Road, Werribee, Victoria 3030, Australia
| | - Poul Erik Jensen
- Department of Food Science, University of Copenhagen, Rolighedsvej 26, 1958 Frederiksberg, Denmark.
| | - Saeed Rahimi Yazdi
- Plant Based Application Department, Chr. Hansen A/S, Bøge Alle 10-12, 2970 Hørsholm, Denmark
| | - Sally Gras
- The Bio21 Molecular Science and Biotechnology Institute, The University of Melbourne, Parkville, VIC 3010, Australia
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Bayrak M, Mata J, Conn C, Floury J, Logan A. Application of small angle scattering (SAS) in structural characterisation of casein and casein-based products during digestion. Food Res Int 2023; 169:112810. [PMID: 37254386 DOI: 10.1016/j.foodres.2023.112810] [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: 12/22/2022] [Revised: 03/01/2023] [Accepted: 04/11/2023] [Indexed: 06/01/2023]
Abstract
In recent years, small and ultra-small angle scattering techniques, collectively known as small angle scattering (SAS) have been used to study various food structures during the digestion process. These techniques play an important role in structural characterisation due to the non-destructive nature (especially when using neutrons), various in situ capabilities and a large length scale (of 1 nm to ∼20 μm) they cover. The application of these techniques in the structural characterisation of dairy products has expanded significantly in recent years. Casein, a major dairy protein, forms the basis of a wide range of gel structures at different length scales. These gel structures have been extensively researched utilising scattering techniques to obtain structural information at the nano and micron scale that complements electron and confocal microscopy. Especially, neutrons have provided opportunity to study these gels in their natural environment by using various in situ options. One such example is understanding changes in casein gel structures during digestion in the gastrointestinal tract, which is essential for designing personalised food structures for a wide range of food-related diseases and improve health outcomes. In this review, we present an overview of casein gels investigated using small angle and ultra-small angle scattering techniques. We also reviewed their digestion using newly built setups recently employed in various research. To gain a greater understanding of micro and nano-scale structural changes during digestion, such as the effect of digestive juices and mechanical breakdown on structure, new setups for semi-solid food materials are needed to be optimised.
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Affiliation(s)
- Meltem Bayrak
- CSIRO Agriculture and Food, 671 Sneydes Road, Werribee, Victoria 3030, Australia; School of Science, College of Science, Engineering and Health, RMIT University, 124 La Trobe Street, Melbourne, VIC 3000, Australia.
| | - Jitendra Mata
- Australian Centre for Neutron Scattering, Australian Nuclear Science and Technology Organisation, Lucas Heights, NSW 2234, Australia.
| | - Charlotte Conn
- School of Science, College of Science, Engineering and Health, RMIT University, 124 La Trobe Street, Melbourne, VIC 3000, Australia.
| | | | - Amy Logan
- CSIRO Agriculture and Food, 671 Sneydes Road, Werribee, Victoria 3030, Australia.
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Call T, Pucker AD, McGwin G, Franklin QX, Logan A. Real-Time Ocular Comfort Reporting in Monthly Replacement Contact Lens Wearers. Clin Optom (Auckl) 2023; 15:97-103. [PMID: 37181863 PMCID: PMC10167961 DOI: 10.2147/opto.s403319] [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] [Download PDF] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Accepted: 04/29/2023] [Indexed: 05/16/2023]
Abstract
Purpose To map contact lens (CL) comfort over the full wear day and across 1 month's wear in established, asymptomatic to minimally symptomatic, reusable, soft CL wearers. Methods Adult, 18- to 45-year-old, participants were recruited and required to have 20/20 best-corrected visual acuity or better and must have been asymptomatic to minimally symptomatic CL wearers. Participants were required to be able to wear TOTAL30® sphere CLs and have minimal astigmatism. Participants were fit in the study CLs and asked to wear these CLs daily for the next month for 16 hours per day each day. Participants were asked to complete a visual analog scale (VAS) survey via text message at time of CL application and after 8, 10, 12, 14, and 16 hours of wear and at CL removal on days 1, 2, 3, 4, and 5 and at 2 weeks and 1 month. The utilized VAS had a ±50 scale with positive scores being comfortable, negative scores being uncomfortable, and scores of 0 being neutral comfort. Results Forty-eight participants were recruited who had a mean ± SD age of 26.2 ± 5.2 years (71% female). Mean initial VAS CL comfort scores at initial CL dispense were 45.56 ± 9.20 units. Mean CL wear times for any of the days evaluated were at least 14.80 ± 2.41 hours per day and did not differ across the study (p = 0.77). Mean comfort VAS scores significantly decreased over the wear day (all days p ≤ 0.02), yet there were no significant differences in VAS comfort scores across the same time of day for the duration of the study (all times p ≥ 0.06). Conclusion This study determined that while CL wearers were slightly less comfortable at the end of the day compared to application, this comfort change was minimal given that the average participants had overwhelmingly good comfort at all time-points evaluated. Comfort scores were likewise consistent across 1 month of wear.
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Affiliation(s)
- Terri Call
- Department of Optometry and Vision Science, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Andrew D Pucker
- Department of Optometry and Vision Science, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Gerald McGwin
- Department of Epidemiology, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Quentin X Franklin
- Department of Optometry and Vision Science, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Amy Logan
- Department of Optometry and Vision Science, University of Alabama at Birmingham, Birmingham, AL, USA
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Gaber MAFM, Logan A, Tamborrino A, Leone A, Romaniello R, Juliano P. Innovative technologies to enhance oil recovery. Adv Food Nutr Res 2023; 105:221-254. [PMID: 37516464 DOI: 10.1016/bs.afnr.2023.01.002] [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] [Subscribe] [Scholar Register] [Indexed: 07/31/2023]
Abstract
The processes for extracting and refining edible oils are well-established in industry at different scales. However, these processing lines encounter inefficiencies and oil losses when recovering crude or refined oil. Palm oil and olive oil extraction methods are used mainly as a combination of physical, thermal, and centrifugal methods to recover crude oil, which results in oil losses in the olive pomace or in palm oil effluents. Seed oils generally require a seed steam conditioning, and cooking stage, followed by physical oil recovery through an inefficient expeller. Most of the crude oil remaining in the expeller cake is then recovered by hexane. Crude seed oil is further refined in stages that also undergo oil losses. This chapter provides an overview of innovative technologies using microwave, ultrasound, megasonic and pulsed electric field energies, which can be used in the above-mentioned crude and refined oil processes to improve oil recovery. This chapter describes traditional palm oil, olive oil, and seed oil processes, as well as the specific process interventions that have been tested with these technologies. The impact of such technology interventions on oil quality is also summarized.
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Affiliation(s)
| | - Amy Logan
- CSIRO Agriculture and Food, Werribee, VIC, Australia
| | - Antonia Tamborrino
- Department of Soil, Plant and Food Science (DISSPA), University of Bari Aldo Moro, Bari, Italy
| | - Alessandro Leone
- Department of Soil, Plant and Food Science (DISSPA), University of Bari Aldo Moro, Bari, Italy
| | - Roberto Romaniello
- Department of Agriculture, Food, Natural Resource and Engineering, University of Foggia, Foggia, Italy
| | - Pablo Juliano
- CSIRO Agriculture and Food, Werribee, VIC, Australia.
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Logan A, Pucker AD, Franklin Q, McGwin G, Hogan C, Kelley LR, Christensen M, Brafford R, Lievens C. Determining initial ocular comfort differences between 0.7% olopatadine and 0.035% ketotifen fumarate. Cont Lens Anterior Eye 2023; 46:101769. [PMID: 36195538 DOI: 10.1016/j.clae.2022.101769] [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: 12/21/2021] [Revised: 09/01/2022] [Accepted: 09/21/2022] [Indexed: 11/26/2022]
Abstract
PURPOSE To compare the ocular comfort at application of topical, over-the-counter, 0.7% olopatadine and 0.035% ketotifen fumarate anti-allergy eye drops. METHODS This study recruited participants who were minimally symptomatic based upon Standard Patient Evaluation of Eye Dryness (SPEED) questionnaire scores (≤3 units) and who had minimal between-eye inter-ocular comfort differences as judged by visual analog scale scores (VAS; ≤7 units). Baseline comfort was evaluated by eye with a VAS. One drop of 0.7% olopatadine or 0.035% ketotifen fumarate was then applied to the right eye with the alternative drop being immediately applied to the left eye. Participants were next evaluated with the same comfort VAS by eye at drop application, and then at 30 s, 1 min, and 2 min post-application. LogMAR visual acuities and bulbar conjunctival redness were evaluated pre- and post-drop application to judge initial changes. RESULTS This study enrolled 159 participants who had a mean ± SD age of 26.3 ± 7.7 years, and 78.6% of the participants were female. The VAS found that the 0.7% olopatadine drop was more comfortable than the 0.035% ketotifen fumarate drop at all time-points. There were no between-eye differences in LogMAR visual acuities, yet bulbar redness was significantly less in 0.7% olopatadine treated eyes compared 0.035% ketotifen fumarate treated eyes. CONCLUSION This study found that topically applied 0.7% olopatadine drops were initially more comfortable than 0.035% ketotifen fumarate drops.
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Affiliation(s)
- Amy Logan
- University of Alabama at Birmingham, Birmingham, AL, United States
| | - Andrew D Pucker
- University of Alabama at Birmingham, Birmingham, AL, United States.
| | - Quentin Franklin
- University of Alabama at Birmingham, Birmingham, AL, United States
| | - Gerald McGwin
- University of Alabama at Birmingham, Birmingham, AL, United States
| | | | | | | | - Randy Brafford
- Southern College of Optometry, Memphis, TN, United States
| | - Chris Lievens
- Southern College of Optometry, Memphis, TN, United States
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Pucker AD, Lievens C, McGwin Jr G, Franklin QX, Logan A, Wolfe GS. Quality of Life in Digital Device Users Who are Treated with Systane Hydration PF. Clin Optom (Auckl) 2023; 15:45-54. [PMID: 36915855 PMCID: PMC10007863 DOI: 10.2147/opto.s398496] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Accepted: 03/01/2023] [Indexed: 06/18/2023]
Abstract
PURPOSE To understand the impact of Systane Hydration PF on dryness symptoms and quality of life in digital device users and to determine if participants prefer either the unit-dose or multi-dose dispensing system of Systane Hydration PF. MATERIALS AND METHODS This 2-week, three visit study recruited regular digital device users. Participants were required to score ≤80 on the Impact of Dry Eye on Everyday Life (IDEEL) Quality of Life (QoL) Work domain and between 13 and 32 on the Ocular Surface Disease Index (OSDI) questionnaire. Participants were randomized to either Systane Hydration PF unit-dose or multi-dose for 1 week and switched to the alternative dosing system for the second week. Participations were evaluated by completing the full IDEEL-QoL module and OSDI questionnaire at each visit. Likert surveys were completed to probe dispensing system preferences. RESULTS Thirty participants with a mean ± SD age of 28.6 ± 12.0 years (70% female) were recruited. Participants had significant improvements in all three IDEEL-QoL domains as well as in OSDI scores (all p < 0.0001). Participants had similar preferences for the two dispensing systems, though they were more likely to indicate that they thought that the multi-dose bottle was more environmentally friendly than the unit-dose vials. CONCLUSION Digital device users with dry eye symptoms had meaningful improvements in eye comfort and quality of life scores after being treated with Systane Hydration PF for 2 weeks. Participants did not have a clear dispensing system preference suggesting that the best dispensing system may depend on the patient.
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Affiliation(s)
| | | | | | | | - Amy Logan
- University of Alabama at Birmingham, Birmingham, AL, USA
| | - Gregory S Wolfe
- Southern College of Optometry, Memphis, TN, USA
- Center for Eye and Health Outcomes, Memphis, TN, USA
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Logan A, Ménard O, Bayrak M, Rakhshi E, Floury J. Gastric devolution of transglutaminase-induced acid and rennet-induced casein gels using dynamic DIDGI® and static COST action INFOGEST protocols. Food Res Int 2023; 164:112351. [PMID: 36737940 DOI: 10.1016/j.foodres.2022.112351] [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: 05/15/2022] [Revised: 12/15/2022] [Accepted: 12/23/2022] [Indexed: 12/26/2022]
Abstract
Limited studies in the literature have compared in vitro dynamic and in vitro static protocols for modelling the gastric digestive process of food systems. This experiment explores the differences between two different in vitro approaches to the devolution of a transglutaminase-induced acid gel (TG, pH 5.1-5.3) and rennet-induced gel (RG, pH 6.5-6.7). Gels were exposed to a simulated oral phase, followed by either the dynamic DIDGI® or static COST action INFOGEST protocol to simulate gastric conditions. Protein hydrolysis was evident from 15 min onwards for TG exposed to the dynamic protocol where levels continued to increase at a steady rate. In contrast, RG exhibited a notable lag-phase before levels increased from around 60 min onwards. Under the static protocol, protein hydrolysis was observed for both TG and RG upon exposure to the gastric environment which continued to increase over time. Despite these differences, similar levels of protein hydrolysis were found for TG and RG at the gastric endpoint using either protocol demonstrating that both the dynamic DIDGI® and static COST action INFOGEST methods provide a suitable and comparable environment for the in vitro digestion of casein protein under simulated gastric conditions.
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Affiliation(s)
- Amy Logan
- CSIRO Agriculture and Food, 671 Sneydes Road, Werribee, Victoria 3030, Australia.
| | | | - Meltem Bayrak
- CSIRO Agriculture and Food, 671 Sneydes Road, Werribee, Victoria 3030, Australia; School of Science, College of Science, Engineering and Health, RMIT University, 124 La Trobe Street, Melbourne, VIC 3000, Australia.
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11
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Woolley SD, Chambers R, Bishop JRB, Logan A, McMillan P, Fletcher TE, Taegtmeyer M, O'Shea MK. COVID-19 risk, attitudes and behaviour study (CRAB study): A knowledge, attitudes, and practise qualitative study of COVID-19 in the Royal Navy. Front Public Health 2023; 10:1101817. [PMID: 36711341 PMCID: PMC9878343 DOI: 10.3389/fpubh.2022.1101817] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2022] [Accepted: 12/23/2022] [Indexed: 01/15/2023] Open
Abstract
Introduction Outbreaks of SARS-CoV-2 onboard maritime platforms spread rapidly and have high attack rates. The aim of the COVID-19 Risk, Attitudes and Behaviour (CRAB) study was to investigate the knowledge, attitudes, and practises in the Royal Navy in relation to COVID-19 prevention. Methods The CRAB study was a cross-sectional survey, using a census sampling method, conducted in May and June 2021. An online questionnaire was distributed to all serving Royal Navy regular personnel using either the MyNavy application or via a QR code through email for a continuous 14 day period. The questionnaire was based on an existing validated questionnaire used for avian influenza epidemics. Questions investigated individual perceptions of COVID-19 seriousness, compliance with prevention methods, explored vaccination intention and vaccine hesitancy (unvaccinated individuals who declined or were unsure about receiving a COVID-19 vaccine). The chi-squared test of best fit was used to compare the demographic responses against the whole organisation, with p-value < 0.05 deemed significant. Odds ratios were used to investigate associations between demographic groups and responses to questions, with an odds ratio crossing 1.0 deemed non-significant. Results The response rate was 6% (2,080/33,200), with 315 responses collated in the pilot phase and 1,765 in the main study phase. Male participants were less likely to rate COVID-19 as serious (OR 0.34; 95% CI: 0.23-0.49). BAME ethnicity (OR 2.41; 95% CI: 1.12-5.17) rated it as more serious. At the time of the study 62% of respondents had received one dose of a COVID-19 vaccine. In the 797 unvaccinated personnel, vaccine hesitancy accounted for 24.2% (193/797), of whom 136 were white males. Those who had a higher COVID-19 serious rating, the most significant factor for non-adherence to COVID-19 prevention measures in both vaccinated (OR 1.61 [95%CI: 1.20-2.17]) and vaccine-hesitant (OR 3.24 [95%CI: 1.63-6.41]) individuals was colleagues' non-adherence. The most trusted source of information on vaccines was provided by the Defence Medical Services (77.2% [1,606/2,080]). Conclusion This study has identified reasons for COVID-19 protective measure adherence, sources of information trusted by respondents and vaccine hesitancy, in the Royal Navy. The questionnaire can be used to investigate attitudes and behaviours in future emerging infectious diseases.
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Affiliation(s)
- Stephen D. Woolley
- Department of Clinical Sciences, Liverpool School of Tropical Medicine, Liverpool, United Kingdom,Institute of Naval Medicine, Alverstoke, United Kingdom,Tropical and Infectious Diseases Unit, Liverpool University Hospitals Foundation NHS Trust, Liverpool, United Kingdom,*Correspondence: Stephen D. Woolley ✉
| | - Robert Chambers
- Royal Navy Healthcare, Royal Navy Headquarters, HMS EXCELLENT, Portsmouth, United Kingdom
| | - Jonathan R. B. Bishop
- NIHR SRMRC, University Hospitals Birmingham NHS Foundation Trust, Birmingham, United Kingdom
| | - Amy Logan
- Royal Navy Healthcare, Royal Navy Headquarters, HMS EXCELLENT, Portsmouth, United Kingdom
| | - Peter McMillan
- Royal Navy Healthcare, Royal Navy Headquarters, HMS EXCELLENT, Portsmouth, United Kingdom
| | - Thomas E. Fletcher
- Department of Clinical Sciences, Liverpool School of Tropical Medicine, Liverpool, United Kingdom,Tropical and Infectious Diseases Unit, Liverpool University Hospitals Foundation NHS Trust, Liverpool, United Kingdom,Academic Department of Military Medicine, Royal Centre for Defence Medicine, Joint Hospital Group, ICT Building, Birmingham Research Park, Birmingham, United Kingdom
| | - Miriam Taegtmeyer
- Tropical and Infectious Diseases Unit, Liverpool University Hospitals Foundation NHS Trust, Liverpool, United Kingdom,Department of International Public Health, Liverpool School of Tropical Medicine, Liverpool, United Kingdom
| | - Matthew K. O'Shea
- Academic Department of Military Medicine, Royal Centre for Defence Medicine, Joint Hospital Group, ICT Building, Birmingham Research Park, Birmingham, United Kingdom,Institute of Immunology and Immunotherapy, College of Medical and Dental Sciences, University of Birmingham, Birmingham, United Kingdom
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12
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Hewa Nadugala B, Hantink R, Nebl T, White J, Pagel CN, Ranadheera C, Logan A, Raynes JK. The role of glycosylation in amyloid fibril formation of bovine κ-casein. Curr Res Food Sci 2023; 6:100433. [PMID: 36660302 PMCID: PMC9842538 DOI: 10.1016/j.crfs.2023.100433] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Revised: 12/08/2022] [Accepted: 01/02/2023] [Indexed: 01/05/2023] Open
Abstract
In order to explore the functions of glycosylation of κ-Casein (κ-CN) in bovine milk, unglycosylated (UG) and twice glycosylated (2G) forms of κ-CN B were purified by selective precipitation followed by anion exchange chromatography from κ-CN BB milk and tested for their amyloid fibril formation and morphology, oligomerisation states and protein structure. The diameter of self-assembled κ-CN B aggregates of both glyco-form were shown for the first time to be in the same 26.0-28.7 nm range for a 1 mg mL-1 solution. The presence of two bound glycans in the protein structure of 2G κ-CN B led to a greater increase in the maximum amyloid fibril formation rate with increasing protein concentration and a difference in both length (82.0 ± 29.9 vs 50.3 ± 13.7 nm) and width (8.6 ± 2.1 vs 13.9 ± 2.5 nm) for fibril morphology compared to UG κ-CN B. The present results suggest that amyloid fibril formation proceeds at a slow but steady rate via the self-assembly of dissociated, monomeric κ-CN B proteins at concentrations of 0.22-0.44 mg mL-1. However amyloid fibril formation proceeds more rapidly via the assembly of either aggregated κ-CN present in a micelle-like form or dissociated monomeric κ-CN, packed into reorganised formational structures above the critical micellar concentration to form fibrils of differing width. The degree of glycosylation has no effect on the polarity of the adjacent environment, nor non-covalent and disulphide interactions between protein molecules when in the native form. Yet glycosylation can influence protein folding patterns of κ-CN B leading to a reduced tryptophan intrinsic fluorescence intensity for 2G compared to UG κ-CN B. These results demonstrate that glycosylation plays an important role in the modulation of aggregation states of κ-CN and contributes to a better understanding of the role of glycosylation in the formation of amyloid fibrils from intrinsically disordered proteins.
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Affiliation(s)
- Barana Hewa Nadugala
- School of Agriculture and Food, Faculty of Veterinary and Agricultural Sciences, University of Melbourne, VIC, 3052, Australia,CSIRO Agriculture and Food, Werribee Victoria, 3030, Australia
| | - Rick Hantink
- CSIRO Agriculture and Food, Werribee Victoria, 3030, Australia
| | - Tom Nebl
- Biology Group, Biomedical Manufacturing Program, CSIRO, Bayview Ave/Research Way, Clayton, VIC, 3168, Australia
| | - Jacinta White
- CSIRO Manufacturing, Bayview Avenue, Clayton, VIC, 3168, Australia
| | - Charles N. Pagel
- Melbourne Veterinary School, Faculty of Veterinary and Agricultural Sciences, The University of Melbourne, VIC, 3052, Australia
| | - C.S. Ranadheera
- School of Agriculture and Food, Faculty of Veterinary and Agricultural Sciences, University of Melbourne, VIC, 3052, Australia,Corresponding author.
| | - Amy Logan
- CSIRO Agriculture and Food, Werribee Victoria, 3030, Australia,Corresponding author.
| | - Jared K. Raynes
- School of Chemical and Biomolecular Engineering, Faculty of Engineering, The University of Sydney, NSW, 2006, Australia
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Lievens C, Pucker AD, McGwin G, Logan A, Franklin Q, Brafford R, Hogan C, Kelley LR, Christensen M. Understanding ocular comfort differences between 0.7% olopatadine and 0.3% pheniramine maleate/0.025% naphazoline hydrochloride eye drops. Clin Exp Optom 2022:1-5. [DOI: 10.1080/08164622.2022.2090231] [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: 10/17/2022] Open
Affiliation(s)
| | - Andrew D. Pucker
- Department of Optometry & Vision Science, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Gerald McGwin
- Department of Epidemiology, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Amy Logan
- Department of Optometry & Vision Science, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Quentin Franklin
- Department of Optometry & Vision Science, University of Alabama at Birmingham, Birmingham, AL, USA
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14
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Huber O, Wagenknecht D, Logan A, Rumore A, Lunz J, Weston M, Bilgili E. Efficacy of Plasmapheresis and Intravenous Immunoglobulin on the Reduction of Donor Specific Antibodies in Heart Transplant Recipients. J Heart Lung Transplant 2022. [DOI: 10.1016/j.healun.2022.01.304] [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: 11/27/2022] Open
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15
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Logan A, Lopez C, Xu M, Day L, Oiseth S, Augustin MA. Tempering governs the milk fat crystallisation and viscoelastic behaviour of unprocessed and homogenised creams. Food Res Int 2021; 147:110557. [PMID: 34399534 DOI: 10.1016/j.foodres.2021.110557] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2021] [Revised: 06/07/2021] [Accepted: 06/21/2021] [Indexed: 11/25/2022]
Abstract
The crystallisation behaviour of milk fat plays an important role in the functionality and sensory properties of fat-rich dairy products. In this study, we investigated the impact of tempering to 25 °C on the viscoelastic properties, particle size and thermal behaviour of 20% w/w unprocessed and homogenised creams prepared from bovine milk. The crystallisation properties were examined by synchrotron X-ray diffraction (XRD) at small (SAXS) and wide angle (WAXS) and differential scanning calorimetry (DSC). Oscillation rheology was performed to characterise the cream's viscoelastic properties. Homogenisation (35 MPa) reduced the average droplet size from 4.4 to 1.3 µm. After 24 h storage at 4 °C, milk fat structures showed triacylglycerol (TAG) 2L and 3L(001, 002, 003, 005) lamellar stacking orders associated predominantly with the α and β' polymorphic forms. Tempering to 25 °C induced the complete melting of the 3L crystals and led to an irreversible loss in the elastic modulus (G') and a reduction in the viscous modulus (G'') once returned to refrigerated conditions, due to changes in the particle-particle interactions and structure of the reformed milk fat crystals. The results demonstrate that crystallisation behaviour of milk fat is influenced by droplet size and the rearrangement of triacylglycerol (TAG) upon tempering, and lead to changes in the viscoelastic behaviour of dairy products containing a high level of milk fat.
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Affiliation(s)
- Amy Logan
- CSIRO Agriculture and Food, 671 Sneydes Road, Werribee, Victoria 3030, Australia.
| | | | - Mi Xu
- CSIRO Agriculture and Food, 671 Sneydes Road, Werribee, Victoria 3030, Australia.
| | - Li Day
- CSIRO Agriculture and Food, 671 Sneydes Road, Werribee, Victoria 3030, Australia.
| | - Sofia Oiseth
- CSIRO Agriculture and Food, 671 Sneydes Road, Werribee, Victoria 3030, Australia.
| | - Mary Ann Augustin
- CSIRO Agriculture and Food, 671 Sneydes Road, Werribee, Victoria 3030, Australia.
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16
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Homer S, Williams R, Williams A, Logan A. WPI Gel Microstructure and Mechanical Behaviour and Their Influence on the Rate of In Vitro Digestion. Foods 2021; 10:foods10051066. [PMID: 34066220 PMCID: PMC8150613 DOI: 10.3390/foods10051066] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Revised: 04/30/2021] [Accepted: 05/04/2021] [Indexed: 11/16/2022] Open
Abstract
The influence of microstructure and mechanical properties on the in vitro digestibility of 15% whey protein isolate (WPI) gels was investigated. Gels were prepared via heat set gelation at three pH values (pH 3, 5 and 7), which produced gels with distinct microstructures and mechanical properties. The gels were minced to simulate an oral/chewing phase, which led to the formation particles of various sizes and textures. The minced gels were passed through either an Infogest (pre-set pH of 3) or Glass stomach (dynamic pH) protocol. Gels were digested in the gastric phase for up to 120 min, at which point the extent of digestion was measured by the amount of filterable nitrogen passing through a sieve. The digesta from both gastric methods were passed through an in vitro simulated intestinal phase. A strong link was found between the elasticity of the initial gel and the gel particle size following simulated oral processing, which significantly (p < 0.01) affected the rate of digestion in the gastric phase. A weaker correlation was also found between the pH of the gels and the extent of gastric digestion. This work highlights the differences in the rate of gastric digestion, arising from oral processing, which can be attributed to the material properties of the substrate.
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17
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Hamed M, Logan A, Gruszczyk AV, Beach TE, James AM, Dare AJ, Barlow A, Martin J, Georgakopoulos N, Gane AM, Crick K, Fouto D, Fear C, Thiru S, Dolezalova N, Ferdinand JR, Clatworthy MR, Hosgood SA, Nicholson ML, Murphy MP, Saeb-Parsy K. Mitochondria-targeted antioxidant MitoQ ameliorates ischaemia-reperfusion injury in kidney transplantation models. Br J Surg 2021; 108:1072-1081. [PMID: 33963377 DOI: 10.1093/bjs/znab108] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2020] [Accepted: 02/28/2021] [Indexed: 11/12/2022]
Abstract
BACKGROUND Ischaemia-reperfusion (IR) injury makes a major contribution to graft damage during kidney transplantation. Oxidative damage to mitochondria is an early event in IR injury. Therefore, the uptake, safety, and efficacy of the mitochondria-targeted antioxidant MitoQ were investigated in models of transplant IR injury. METHODS MitoQ uptake by warm and cooled pairs of pig and declined human kidneys was measured when preserved in cold static storage or by hypothermic machine perfusion. Pairs of pigs' kidneys were exposed to defined periods of warm and cold ischaemia, flushed and stored at 4°C with or without MitoQ (50 nmol/l to 250 µmol/l), followed by reperfusion with oxygenated autologous blood in an ex vivo normothermic perfusion (EVNP). Pairs of declined human kidneys were flushed and stored with or without MitoQ (5-100 µmol/l) at 4°C for 6 h and underwent EVNP with ABO group-matched blood. RESULTS Stable and concentration-dependent uptake of MitoQ was demonstrated for up to 24 h in pig and human kidneys. Total blood flow and urine output were significantly greater in pig kidneys treated with 50 µmol/l MitoQ compared with controls (P = 0.006 and P = 0.007 respectively). In proof-of-concept experiments, blood flow after 1 h of EVNP was significantly greater in human kidneys treated with 50 µmol/l MitoQ than in controls (P ≤ 0.001). Total urine output was numerically higher in the 50-µmol/l MitoQ group compared with the control, but the difference did not reach statistical significance (P = 0.054). CONCLUSION Mitochondria-targeted antioxidant MitoQ can be administered to ischaemic kidneys simply and effectively during cold storage, and may improve outcomes after transplantation.
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Affiliation(s)
- M Hamed
- Department of Surgery, University of Cambridge, Cambridge, UK.,MRC Mitochondrial Biology Unit, Cambridge, UK.,Cambridge National Institute for Health Research (NIHR) Biomedical Research Centre and NIHR Blood and Transplant Research Unit in Organ Donation and Transplantation, Cambridge, UK
| | - A Logan
- MRC Mitochondrial Biology Unit, Cambridge, UK
| | - A V Gruszczyk
- Department of Surgery, University of Cambridge, Cambridge, UK.,MRC Mitochondrial Biology Unit, Cambridge, UK.,Cambridge National Institute for Health Research (NIHR) Biomedical Research Centre and NIHR Blood and Transplant Research Unit in Organ Donation and Transplantation, Cambridge, UK
| | - T E Beach
- Department of Surgery, University of Cambridge, Cambridge, UK.,MRC Mitochondrial Biology Unit, Cambridge, UK.,Cambridge National Institute for Health Research (NIHR) Biomedical Research Centre and NIHR Blood and Transplant Research Unit in Organ Donation and Transplantation, Cambridge, UK
| | - A M James
- MRC Mitochondrial Biology Unit, Cambridge, UK
| | - A J Dare
- Department of Surgery, University of Cambridge, Cambridge, UK.,MRC Mitochondrial Biology Unit, Cambridge, UK
| | - A Barlow
- Department of Surgery, University of Cambridge, Cambridge, UK
| | - J Martin
- Department of Surgery, University of Cambridge, Cambridge, UK.,MRC Mitochondrial Biology Unit, Cambridge, UK.,Cambridge National Institute for Health Research (NIHR) Biomedical Research Centre and NIHR Blood and Transplant Research Unit in Organ Donation and Transplantation, Cambridge, UK
| | - N Georgakopoulos
- Department of Surgery, University of Cambridge, Cambridge, UK.,Cambridge National Institute for Health Research (NIHR) Biomedical Research Centre and NIHR Blood and Transplant Research Unit in Organ Donation and Transplantation, Cambridge, UK
| | - A M Gane
- Department of Surgery, University of Cambridge, Cambridge, UK.,MRC Mitochondrial Biology Unit, Cambridge, UK
| | - K Crick
- Department of Surgery, University of Cambridge, Cambridge, UK.,Cambridge National Institute for Health Research (NIHR) Biomedical Research Centre and NIHR Blood and Transplant Research Unit in Organ Donation and Transplantation, Cambridge, UK
| | - D Fouto
- Department of Surgery, University of Cambridge, Cambridge, UK.,Cambridge National Institute for Health Research (NIHR) Biomedical Research Centre and NIHR Blood and Transplant Research Unit in Organ Donation and Transplantation, Cambridge, UK
| | - C Fear
- Department of Surgery, University of Cambridge, Cambridge, UK.,Cambridge National Institute for Health Research (NIHR) Biomedical Research Centre and NIHR Blood and Transplant Research Unit in Organ Donation and Transplantation, Cambridge, UK
| | - S Thiru
- Department of Pathology, Cambridge University Hospitals NHS Trust, Addenbrooke's Hospital, Cambridge, UK
| | - N Dolezalova
- Department of Surgery, University of Cambridge, Cambridge, UK.,Cambridge National Institute for Health Research (NIHR) Biomedical Research Centre and NIHR Blood and Transplant Research Unit in Organ Donation and Transplantation, Cambridge, UK
| | - J R Ferdinand
- Cambridge National Institute for Health Research (NIHR) Biomedical Research Centre and NIHR Blood and Transplant Research Unit in Organ Donation and Transplantation, Cambridge, UK.,Department of Medicine, University of Cambridge, Cambridge, UK
| | - M R Clatworthy
- Cambridge National Institute for Health Research (NIHR) Biomedical Research Centre and NIHR Blood and Transplant Research Unit in Organ Donation and Transplantation, Cambridge, UK.,Department of Medicine, University of Cambridge, Cambridge, UK
| | - S A Hosgood
- Department of Surgery, University of Cambridge, Cambridge, UK.,Cambridge National Institute for Health Research (NIHR) Biomedical Research Centre and NIHR Blood and Transplant Research Unit in Organ Donation and Transplantation, Cambridge, UK
| | - M L Nicholson
- Department of Surgery, University of Cambridge, Cambridge, UK.,Cambridge National Institute for Health Research (NIHR) Biomedical Research Centre and NIHR Blood and Transplant Research Unit in Organ Donation and Transplantation, Cambridge, UK
| | - M P Murphy
- MRC Mitochondrial Biology Unit, Cambridge, UK.,Department of Medicine, University of Cambridge, Cambridge, UK
| | - K Saeb-Parsy
- Department of Surgery, University of Cambridge, Cambridge, UK.,Cambridge National Institute for Health Research (NIHR) Biomedical Research Centre and NIHR Blood and Transplant Research Unit in Organ Donation and Transplantation, Cambridge, UK
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Ganapathi A, Logan A, Whitson B, Mokadam N, Lampert B, Brock G, Washburn W, Schenk A. Textbook Outcome: A Novel Metric for Heart Transplantation. J Heart Lung Transplant 2021. [DOI: 10.1016/j.healun.2021.01.707] [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] Open
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19
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Bayrak M, Mata J, Raynes JK, Greaves M, White J, Conn CE, Floury J, Logan A. Investigating casein gel structure during gastric digestion using ultra-small and small-angle neutron scattering. J Colloid Interface Sci 2021; 594:561-574. [PMID: 33780761 DOI: 10.1016/j.jcis.2021.03.087] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [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: 07/27/2020] [Revised: 02/24/2021] [Accepted: 03/15/2021] [Indexed: 11/25/2022]
Abstract
This study aimed to understand the structural devolution of 10% w/w rennet-induced (RG) and transglutaminase-induced acid (TG) gels in H2O and D2O under in vitro gastric conditions with and without pepsin. The real-time devolution of structure at a nano- (e.g. colloidal calcium phosphate (CCP) and micelle) and micro- (gel network) level was determined using ultra-small (USANS) and small-angle neutron scattering (SANS) with electron microscopy. Results demonstrate that gel firmness or elasticity determines disintegration behaviour during simulated mastication and consequently the particle size entering the stomach. Shear of mixing in the stomach, pH, and enzyme activity will also affect the digestion process. Our results suggest that shear of mixing primarily results in erosion at the particle surface and governs gel disintegration behaviour during the early stages of digestion. Pepsin diffusivity, and hence action, occur more readily in the latter stages of gastric digestion via access to the particle interior. This occurs via the progressively larger pores of the looser gel network and channels created within the larger, less dense casein micelles of the RG gels. Gel firmness and brittleness were greater in the D2O samples compared to H2O, facilitating gel disintegration. Despite the higher strength and elasticity of RG compared to TG, the protein network strands of the RG gels become more compact when exposed to the acidic gastric environment with comparatively larger pores observed through SEM imaging. This led to a higher degree of digestibility in RG gels compared to TG gels. This is the first study to examine casein gel structure during simulated gastric digestion using scattering and highlights the benefits of neutron scattering to monitor structural changes during digestion at multiple length scales.
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Affiliation(s)
- Meltem Bayrak
- CSIRO Agriculture and Food, 671 Sneydes Road, Werribee, Victoria 3030, Australia; School of Science, STEM College, RMIT University, 124 La Trobe Street, Melbourne, VIC 3000, Australia.
| | - Jitendra Mata
- Australian Centre for Neutron Scattering, Australian Nuclear Science and Technology Organisation, Lucas Heights, NSW 2234, Australia.
| | - Jared K Raynes
- CSIRO Agriculture and Food, 671 Sneydes Road, Werribee, Victoria 3030, Australia.
| | - Mark Greaves
- CSIRO Manufacturing, Bayview Avenue, Clayton, VIC 3168, Australia.
| | - Jacinta White
- CSIRO Manufacturing, Bayview Avenue, Clayton, VIC 3168, Australia.
| | - Charlotte E Conn
- School of Science, STEM College, RMIT University, 124 La Trobe Street, Melbourne, VIC 3000, Australia.
| | | | - Amy Logan
- CSIRO Agriculture and Food, 671 Sneydes Road, Werribee, Victoria 3030, Australia.
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20
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Courtie E, Veenith T, Logan A, Denniston AK, Blanch RJ. Retinal blood flow in critical illness and systemic disease: a review. Ann Intensive Care 2020; 10:152. [PMID: 33184724 PMCID: PMC7661622 DOI: 10.1186/s13613-020-00768-3] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2020] [Accepted: 10/23/2020] [Indexed: 12/22/2022] Open
Abstract
BACKGROUND Assessment and maintenance of end-organ perfusion are key to resuscitation in critical illness, although there are limited direct methods or proxy measures to assess cerebral perfusion. Novel non-invasive methods of monitoring microcirculation in critically ill patients offer the potential for real-time updates to improve patient outcomes. MAIN BODY Parallel mechanisms autoregulate retinal and cerebral microcirculation to maintain blood flow to meet metabolic demands across a range of perfusion pressures. Cerebral blood flow (CBF) is reduced and autoregulation impaired in sepsis, but current methods to image CBF do not reproducibly assess the microcirculation. Peripheral microcirculatory blood flow may be imaged in sublingual and conjunctival mucosa and is impaired in sepsis. Retinal microcirculation can be directly imaged by optical coherence tomography angiography (OCTA) during perfusion-deficit states such as sepsis, and other systemic haemodynamic disturbances such as acute coronary syndrome, and systemic inflammatory conditions such as inflammatory bowel disease. CONCLUSION Monitoring microcirculatory flow offers the potential to enhance monitoring in the care of critically ill patients, and imaging retinal blood flow during critical illness offers a potential biomarker for cerebral microcirculatory perfusion.
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Affiliation(s)
- E Courtie
- Neuroscience and Ophthalmology, Institute of Inflammation and Ageing, College of Medical and Dental Sciences, University of Birmingham, Birmingham, UK
- Ophthalmology Department, University Hospitals Birmingham NHS Foundation Trust, Birmingham, UK
- NIHR Surgical Reconstruction and Microbiology Research Centre, University Hospitals Birmingham NHS Foundation Trust, Birmingham, UK
| | - T Veenith
- Critical Care Unit, University Hospitals Birmingham NHS Foundation Trust, Birmingham, UK
- Birmingham Acute Care Research Group, Institute of Inflammation and Ageing, College of Medical and Dental Sciences, University of Birmingham, Birmingham, UK
| | - A Logan
- Axolotl Consulting Ltd, Droitwich, WR9 0JS, Worcestershire, UK
- Division of Biomedical Sciences, Warwick Medical School, University of Warwick, Coventry, CV4 7HL, UK
| | - A K Denniston
- Neuroscience and Ophthalmology, Institute of Inflammation and Ageing, College of Medical and Dental Sciences, University of Birmingham, Birmingham, UK
- Ophthalmology Department, University Hospitals Birmingham NHS Foundation Trust, Birmingham, UK
- NIHR Biomedical Research Centre for Ophthalmology, Moorfields Eye Hospital NHS Foundation Trust and UCL Institute of Ophthalmology, London, UK
- Centre for Rare Diseases, Institute of Translational Medicine, Birmingham Health Partners, Birmingham, UK
| | - R J Blanch
- Neuroscience and Ophthalmology, Institute of Inflammation and Ageing, College of Medical and Dental Sciences, University of Birmingham, Birmingham, UK.
- Ophthalmology Department, University Hospitals Birmingham NHS Foundation Trust, Birmingham, UK.
- NIHR Surgical Reconstruction and Microbiology Research Centre, University Hospitals Birmingham NHS Foundation Trust, Birmingham, UK.
- Academic Department of Military Surgery and Trauma, Royal Centre for Defence Medicine, Birmingham, UK.
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Botting KJ, Skeffington KL, Niu Y, Allison BJ, Brain KL, Itani N, Beck C, Logan A, Murray AJ, Murphy MP, Giussani DA. Translatable mitochondria-targeted protection against programmed cardiovascular dysfunction. Sci Adv 2020; 6:eabb1929. [PMID: 32875110 PMCID: PMC7438086 DOI: 10.1126/sciadv.abb1929] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/06/2020] [Accepted: 07/08/2020] [Indexed: 06/11/2023]
Abstract
The prenatal origins of heart disease in offspring have been established. However, research in species with developmental milestones comparable to humans is lacking, preventing translation of this knowledge to clinical contexts. Using sheep and chickens, two species with similar cardiovascular developmental milestones to humans, we combined in vivo experiments with in vitro studies at organ, cellular, mitochondrial, and molecular levels. We tested mitochondria-targeted antioxidant intervention with MitoQ against cardiovascular dysfunction programmed by developmental hypoxia, a common complication in human pregnancy. Experiments in sheep determined in vivo fetal and adult cardiovascular function through surgical techniques not possible in humans, while those in chicken embryos isolated effects independent of maternal or placental influences. We show that hypoxia generates mitochondria-derived oxidative stress during cardiovascular development, programming endothelial dysfunction and hypertension in adult offspring. MitoQ treatment during hypoxic development protects against this cardiovascular risk via enhanced nitric oxide signaling, offering a plausible intervention strategy.
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Affiliation(s)
- K. J. Botting
- Department of Physiology, Development and Neuroscience, University of Cambridge, Downing Street, Cambridge CB2 3EG, UK
- Cambridge Cardiovascular Strategic Research Initiative, Cambridge, UK
- Barcroft Centre, University of Cambridge, Cambridge, UK
| | - K. L. Skeffington
- Department of Physiology, Development and Neuroscience, University of Cambridge, Downing Street, Cambridge CB2 3EG, UK
- Barcroft Centre, University of Cambridge, Cambridge, UK
| | - Y. Niu
- Department of Physiology, Development and Neuroscience, University of Cambridge, Downing Street, Cambridge CB2 3EG, UK
- Cambridge Cardiovascular Strategic Research Initiative, Cambridge, UK
- Barcroft Centre, University of Cambridge, Cambridge, UK
| | - B. J. Allison
- Department of Physiology, Development and Neuroscience, University of Cambridge, Downing Street, Cambridge CB2 3EG, UK
- Barcroft Centre, University of Cambridge, Cambridge, UK
| | - K. L. Brain
- Department of Physiology, Development and Neuroscience, University of Cambridge, Downing Street, Cambridge CB2 3EG, UK
- Barcroft Centre, University of Cambridge, Cambridge, UK
| | - N. Itani
- Department of Physiology, Development and Neuroscience, University of Cambridge, Downing Street, Cambridge CB2 3EG, UK
- Barcroft Centre, University of Cambridge, Cambridge, UK
| | - C. Beck
- Department of Physiology, Development and Neuroscience, University of Cambridge, Downing Street, Cambridge CB2 3EG, UK
- Barcroft Centre, University of Cambridge, Cambridge, UK
| | - A. Logan
- MRC-Mitochondrial Biology Unit, University of Cambridge, Hills Road, Cambridge CB2 0XY, UK
| | - A. J. Murray
- Department of Physiology, Development and Neuroscience, University of Cambridge, Downing Street, Cambridge CB2 3EG, UK
| | - M. P. Murphy
- MRC-Mitochondrial Biology Unit, University of Cambridge, Hills Road, Cambridge CB2 0XY, UK
| | - D. A. Giussani
- Department of Physiology, Development and Neuroscience, University of Cambridge, Downing Street, Cambridge CB2 3EG, UK
- Cambridge Cardiovascular Strategic Research Initiative, Cambridge, UK
- Barcroft Centre, University of Cambridge, Cambridge, UK
- Cambridge Strategic Research Initiative in Reproduction, Cambridge, UK
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Logan A, Freeman J, Pooler J, Kent B, Gunn H, Cork E, Billings S, Marsden J. The effectiveness of non-pharmacological interventions to treat orthostatic hypotension in people with stroke: a systematic review. Physiotherapy 2020. [DOI: 10.1016/j.physio.2020.03.052] [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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Lazzaro F, Bouchoux A, Raynes J, Williams R, Ong L, Hanssen E, Lechevalier V, Pezennec S, Cho HJ, Logan A, Gras S, Gaucheron F. Tailoring the structure of casein micelles through a multifactorial approach to manipulate rennet coagulation properties. Food Hydrocoll 2020. [DOI: 10.1016/j.foodhyd.2019.105414] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Lee K, Bamford A, Gardiner F, Agovino A, ter Horst B, Bishop J, Grover L, Logan A, Moiemen N. Burns objective scar scale (BOSS): Validation of an objective measurement devices based burn scar scale panel. Burns 2020; 46:110-120. [DOI: 10.1016/j.burns.2019.05.008] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2018] [Revised: 05/04/2019] [Accepted: 05/15/2019] [Indexed: 01/04/2023]
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Walter L, Shrestha P, Fry R, Leury BJ, Logan A. Lipid metabolic differences in cows producing small or large milk fat globules: Fatty acid origin and degree of saturation. J Dairy Sci 2019; 103:1920-1930. [PMID: 31759596 DOI: 10.3168/jds.2019-16775] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2019] [Accepted: 09/10/2019] [Indexed: 11/19/2022]
Abstract
This study compared cows that consistently produce milk with small (volume-weighted mean diameter of 2.92-3.83 µm, with an average diameter of 3.29 µm) or large (volume-weighted mean diameter of 4.58-5.67 µm, with an average diameter of 4.92 µm) milk fat globule (MFG) size distributions in terms of the fatty acid (FA) composition of the MFG core. Selected cows fell into the respective size group over at least 3 independent measurements, including an observation period before the experiment. Further selection criteria were similar milk production traits between cows (milk yield, fat yield, fat/protein ratio) and established lactation (>50 d in milk). However, the selected groups differed in parity (parity 1-3 and 3-5 in the small and large MFG groups, respectively), and the small MFG group was an average of 25 d in milk later in their lactation period. All cows were under the same nutritional management and environmental conditions. Here, we show that cows with the small or large MFG phenotype differed in their lipid metabolism in terms of the FA composition of the MFG core. Our results indicate that cows with the small MFG phenotype produced milk with higher concentrations of unsaturated FA despite being fed the same diet. We suggest that this characteristic of the small MFG phenotype is the result of increased uptake of long-chain FA from the blood circulation. A relationship between the degree of unsaturation and MFG size was also identified in preliminary studies across other species-namely, camels, sheep, and goats. These findings show the potential for on-farm selection of cows (and potentially other dairy species) based on MFG size to produce milk with improved nutrient composition. This could lead to purpose-specific separation of milk based on MFG size and FA profile, both known to alter the technological properties of milk.
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Affiliation(s)
- L Walter
- Faculty of Veterinary and Agricultural Sciences, The University of Melbourne, Parkville, Victoria, Australia 3010; CSIRO Agriculture and Food, Werribee, Victoria, Australia 3030
| | - P Shrestha
- CSIRO Agriculture and Food, Black Mountain, Canberra, Australia 2601
| | - R Fry
- Faculty of Veterinary and Agricultural Sciences, The University of Melbourne, Parkville, Victoria, Australia 3010
| | - B J Leury
- Faculty of Veterinary and Agricultural Sciences, The University of Melbourne, Parkville, Victoria, Australia 3010
| | - A Logan
- CSIRO Agriculture and Food, Werribee, Victoria, Australia 3030.
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Lee KC, Bamford A, Gardiner F, Agovino A, Ter Horst B, Bishop J, Sitch A, Grover L, Logan A, Moiemen NS. Investigating the intra- and inter-rater reliability of a panel of subjective and objective burn scar measurement tools. Burns 2019; 45:1311-1324. [PMID: 31327551 PMCID: PMC6731390 DOI: 10.1016/j.burns.2019.02.002] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2018] [Revised: 01/13/2019] [Accepted: 02/07/2019] [Indexed: 01/03/2023]
Abstract
Subjective scar measures have poor reliability unless repeated by more than one assessor. Objective scar measures have been demonstrated to have good to excellent reliability. Physical symptoms of scars such as pain and itch were found to be more important to patients compared to surface, area and colour although this finding was not sustained when corrected for multiple comparisons.
Background Research into the treatment of hypertrophic burn scar is hampered by the variability and subjectivity of existing outcome measures. This study aims to measure the inter- and intra-rater reliability of a panel of subjective and objective burn scar measurement tools. Methods Three independent assessors evaluated 55 scar and normal skin sites using subjective (modified Vancouver Scar Scale [mVSS] & Patient and Observer Scar Assessment Scale [POSAS]) and objective tools. The intra-class correlation coefficient was utilised to measure reliability (acceptable when >0.70). Patient satisfaction with the different tools and scar parameter importance were assessed via questionnaires. Results The inter-rater reliabilities of the mVSS and POSAS were below the acceptable limit. For erythema and pigmentation, all of the Scanoskin and DSM II measures (except the b* value) had acceptable to excellent intra and inter-rater reliability. The Dermascan ultrasound (dermal thickness, intensity) had excellent intra- and inter-rater reliability (>0.90). The Cutometer R0 (firmness) had acceptable reliability but not R2 (gross elasticity). All objective measurement tools had good overall satisfaction scores. Patients rated scar related pain and itch as more important compared to appearance although this finding was not sustained when corrected for multiple comparisons. Conclusion The objective scar measures demonstrated acceptable to excellent intra- and inter-rater reliability and performed better than the subjective scar scales.
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Affiliation(s)
- K C Lee
- Scar Free Foundation Centre for Burns Research, University Hospital Birmingham NHS Foundation Trust, Queen Elizabeth Hospital Birmingham, Mindelsohn Way, Edgbaston, Birmingham, B15 2WB, UK
| | - A Bamford
- University Hospital Birmingham NHS Foundation Trust, Queen Elizabeth Hospital Birmingham, Mindelsohn Way, Edgbaston, Birmingham, B15 2WB, UK
| | - F Gardiner
- University Hospital Birmingham NHS Foundation Trust, Queen Elizabeth Hospital Birmingham, Mindelsohn Way, Edgbaston, Birmingham, B15 2WB, UK
| | - A Agovino
- Scar Free Foundation Centre for Burns Research, University Hospital Birmingham NHS Foundation Trust, Queen Elizabeth Hospital Birmingham, Mindelsohn Way, Edgbaston, Birmingham, B15 2WB, UK
| | - B Ter Horst
- Scar Free Foundation Centre for Burns Research, University Hospital Birmingham NHS Foundation Trust, Queen Elizabeth Hospital Birmingham, Mindelsohn Way, Edgbaston, Birmingham, B15 2WB, UK
| | - J Bishop
- Birmingham Clinical Trials Unit (BCTU), Institute of Applied Health Research, University of Birmingham, Edgbaston, Birmingham, B15 2TT, UK
| | - A Sitch
- Test Evaluation Research Group, Institute of Applied Health Research, University of Birmingham, Edgbaston, Birmingham, B15 2TT, UK
| | - L Grover
- School of Chemical Engineering, University of Birmingham, Edgbaston, Birmingham, B15 2TT, UK
| | - A Logan
- Institute of Inflammation and Ageing, College of Medical and Dental Sciences, University of Birmingham, Edgbaston, Birmingham, B15 2TT, UK
| | - N S Moiemen
- Scar Free Foundation Centre for Burns Research, University Hospital Birmingham NHS Foundation Trust, Queen Elizabeth Hospital Birmingham, Mindelsohn Way, Edgbaston, Birmingham, B15 2WB, UK.
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Logan A, Nielsen B, Robison C, Manfredi J, Schott H, Buskirk D, Hiney K. Weekly sprinting of juvenile animals increases bone strength and size as well as bone formation marker concentration. J Equine Vet Sci 2019. [DOI: 10.1016/j.jevs.2019.03.043] [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: 10/26/2022]
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Pasley T, Logan A, Brueckner A, Bowman-Anger L, Silverman A, Rumore A. Direct Oral Anticoagulants: An Evaluation of the Safety and Efficacy in Cardiothoracic Transplant Recipients. J Heart Lung Transplant 2019. [DOI: 10.1016/j.healun.2019.01.765] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
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Collie-Akers VL, Schultz JA, Fawcett SB, Obermeier SM, Pate RR, John LV, Weber SA, Logan A, Arteaga SS, Loria CM, Webb K. The prevalence of community programmes and policies to prevent childhood obesity in a diverse sample of US communities: the Healthy Communities Study. Pediatr Obes 2018; 13 Suppl 1:64-71. [PMID: 30270519 DOI: 10.1111/ijpo.12475] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/13/2017] [Revised: 06/02/2018] [Accepted: 08/15/2018] [Indexed: 11/29/2022]
Abstract
INTRODUCTION This manuscript describes the prevalence and attributes of community programmes and policies (CPPs) to address childhood obesity documented as occurring in 130 diverse US communities. METHODS Key informant interviews (N = 1420) and document abstraction were used to identify and characterize CPPs to promote physical activity and healthy nutrition occurring during a 10-year retrospective study period. Data were collected in 2013-2015 and analysed in 2016. RESULTS Across all 130 communities, 9681 distinct CPPs were reported as occurring by key informants. Of these, 5574 (58%) focused on increasing physical activity, 2596 (27%) on improving nutrition and 1511 (16%) on both behaviours. The mean number of CPPs per community was 74.0, with a range of 25 to 295 across all communities. Most CPPs occurred more than once (63%) and on average lasted 6.1 years. The greatest number of reported CPPs occurred in school settings (44%). CONCLUSIONS Communities showed a wide range of investment in the amount of CPPs occurring in settings that affect opportunities for children to engage in physical activity and healthy nutrition. The pattern of implementation of CPPs showed variation over time, with an increase in more recent years. This observational study provides new and valuable information about what US communities are doing to prevent childhood obesity.
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Affiliation(s)
- V L Collie-Akers
- Center for Community Health and Development, University of Kansas, Lawrence, KS, USA
| | - J A Schultz
- Center for Community Health and Development, University of Kansas, Lawrence, KS, USA
| | - S B Fawcett
- Center for Community Health and Development, University of Kansas, Lawrence, KS, USA
| | - S M Obermeier
- Center for Community Health and Development, University of Kansas, Lawrence, KS, USA
| | - R R Pate
- Department of Exercise Science, University of South Carolina, Columbia, SC, USA
| | - L V John
- Battelle Health and Analytics, St. Louis, MO, USA
| | - S A Weber
- Battelle Health and Analytics, Columbus, OH, USA
| | - A Logan
- Battelle Health and Analytics, Columbus, OH, USA
| | - S S Arteaga
- National Heart, Lung, and Blood Institute, Bethesda, MD, USA
| | - C M Loria
- National Heart, Lung, and Blood Institute, Bethesda, MD, USA
| | - K Webb
- Division of Agriculture and Natural Resources, University of California, Nutrition Policy Institute, Oakland, CA, USA
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Redondo MJ, Geyer S, Steck AK, Sharp S, Wentworth JM, Weedon MN, Antinozzi P, Sosenko J, Atkinson M, Pugliese A, Oram RA, Antinozzi P, Atkinson M, Battaglia M, Becker D, Bingley P, Bosi E, Buckner J, Colman P, Gottlieb P, Herold K, Insel R, Kay T, Knip M, Marks J, Moran A, Palmer J, Peakman M, Philipson L, Pugliese A, Raskin P, Rodriguez H, Roep B, Russell W, Schatz D, Wherrett D, Wilson D, Winter W, Ziegler A, Benoist C, Blum J, Chase P, Clare-Salzler M, Clynes R, Eisenbarth G, Fathman C, Grave G, Hering B, Kaufman F, Leschek E, Mahon J, Nanto-Salonen K, Nepom G, Orban T, Parkman R, Pescovitz M, Peyman J, Roncarolo M, Simell O, Sherwin R, Siegelman M, Steck A, Thomas J, Trucco M, Wagner J, Greenbaum ,CJ, Bourcier K, Insel R, Krischer JP, Leschek E, Rafkin L, Spain L, Cowie C, Foulkes M, Krause-Steinrauf H, Lachin JM, Malozowski S, Peyman J, Ridge J, Savage P, Skyler JS, Zafonte SJ, Kenyon NS, Santiago I, Sosenko JM, Bundy B, Abbondondolo M, Adams T, Amado D, Asif I, Boonstra M, Bundy B, Burroughs C, Cuthbertson D, Deemer M, Eberhard C, Fiske S, Ford J, Garmeson J, Guillette H, Browning G, Coughenour T, Sulk M, Tsalikan E, Tansey M, Cabbage J, Dixit N, Pasha S, King M, Adcock K, Geyer S, Atterberry H, Fox L, Englert K, Mauras N, Permuy J, Sikes K, Berhe T, Guendling B, McLennan L, Paganessi L, Hays B, Murphy C, Draznin M, Kamboj M, Sheppard S, Lewis V, Coates L, Moore W, Babar G, Bedard J, Brenson-Hughes D, Henderson C, Cernich J, Clements M, Duprau R, Goodman S, Hester L, Huerta-Saenz L, Karmazin A, Letjen T, Raman S, Morin D, Henry M, Bestermann W, Morawski E, White J, Brockmyer A, Bays R, Campbell S, Stapleton A, Stone N, Donoho A, Everett H, Heyman K, Hensley H, Johnson M, Marshall C, Skirvin N, Taylor P, Williams R, Ray L, Wolverton C, Nickels D, Dothard C, Hsiao B, Speiser P, Pellizzari M, Bokor L, Izuora K, Abdelnour S, Cummings P, Paynor S, Leahy M, Riedl M, Shockley S, Karges C, Saad R, Briones T, Casella S, Herz C, Walsh K, Greening J, Hay F, Hunt S, Sikotra N, Simons L, Keaton N, Karounos D, Oremus R, Dye L, Myers L, Ballard D, Miers W, Sparks R, Thraikill K, Edwards K, Fowlkes J, Kinderman A, Kemp S, Morales A, Holland L, Johnson L, Paul P, Ghatak A, Phelen K, Leyland H, Henderson T, Brenner D, Law P, Oppenheimer E, Mamkin I, Moniz C, Clarson C, Lovell M, Peters A, Ruelas V, Borut D, Burt D, Jordan M, Leinbach A, Castilla S, Flores P, Ruiz M, Hanson L, Green-Blair J, Sheridan R, Wintergerst K, Pierce G, Omoruyi A, Foster M, Linton C, Kingery S, Lunsford A, Cervantes I, Parker T, Price P, Urben J, Doughty I, Haydock H, Parker V, Bergman P, Liu S, Duncum S, Rodda C, Thomas A, Ferry R, McCommon D, Cockroft J, Perelman A, Calendo R, Barrera C, Arce-Nunez E, Lloyd J, Martinez Y, De la Portilla M, Cardenas I, Garrido L, Villar M, Lorini R, Calandra E, D’Annuzio G, Perri K, Minuto N, Malloy J, Rebora C, Callegari R, Ali O, Kramer J, Auble B, Cabrera S, Donohoue P, Fiallo-Scharer R, Hessner M, Wolfgram P, Maddox K, Kansra A, Bettin N, McCuller R, Miller A, Accacha S, Corrigan J, Fiore E, Levine R, Mahoney T, Polychronakos C, Martin J, Gagne V, Starkman H, Fox M, Chin D, Melchionne F, Silverman L, Marshall I, Cerracchio L, Cruz J, Viswanathan A, Miller J, Wilson J, Chalew S, Valley S, Layburn S, Lala A, Clesi P, Genet M, Uwaifo G, Charron A, Allerton T, Milliot E, Cefalu W, Melendez-Ramirez L, Richards R, Alleyn C, Gustafson E, Lizanna M, Wahlen J, Aleiwe S, Hansen M, Wahlen H, Moore M, Levy C, Bonaccorso A, Rapaport R, Tomer Y, Chia D, Goldis M, Iazzetti L, Klein M, Levister C, Waldman L, Muller S, Wallach E, Regelmann M, Antal Z, Aranda M, Reynholds C, Leech N, Wake D, Owens C, Burns M, Wotherspoon J, Nguyen T, Murray A, Short K, Curry G, Kelsey S, Lawson J, Porter J, Stevens S, Thomson E, Winship S, Wynn L, O’Donnell R, Wiltshire E, Krebs J, Cresswell P, Faherty H, Ross C, Vinik A, Barlow P, Bourcier M, Nevoret M, Couper J, Oduah V, Beresford S, Thalagne N, Roper H, Gibbons J, Hill J, Balleaut S, Brennan C, Ellis-Gage J, Fear L, Gray T, Pilger J, Jones L, McNerney C, Pointer L, Price N, Few K, Tomlinson D, Denvir L, Drew J, Randell T, Mansell P, Roberts A, Bell S, Butler S, Hooton Y, Navarra H, Roper A, Babington G, Crate L, Cripps H, Ledlie A, Moulds C, Sadler K, Norton R, Petrova B, Silkstone O, Smith C, Ghai K, Murray M, Viswanathan V, Henegan M, Kawadry O, Olson J, Stavros T, Patterson L, Ahmad T, Flores B, Domek D, Domek S, Copeland K, George M, Less J, Davis T, Short M, Tamura R, Dwarakanathan A, O’Donnell P, Boerner B, Larson L, Phillips M, Rendell M, Larson K, Smith C, Zebrowski K, Kuechenmeister L, Wood K, Thevarayapillai M, Daniels M, Speer H, Forghani N, Quintana R, Reh C, Bhangoo A, Desrosiers P, Ireland L, Misla T, Xu P, Torres C, Wells S, Villar J, Yu M, Berry D, Cook D, Soder J, Powell A, Ng M, Morrison M, Young K, Haslam Z, Lawson M, Bradley B, Courtney J, Richardson C, Watson C, Keely E, DeCurtis D, Vaccarcello-Cruz M, Torres Z, Alies P, Sandberg K, Hsiang H, Joy B, McCormick D, Powell A, Jones H, Bell J, Hargadon S, Hudson S, Kummer M, Badias F, Sauder S, Sutton E, Gensel K, Aguirre-Castaneda R, Benavides Lopez V, Hemp D, Allen S, Stear J, Davis E, Jones T, Baker A, Roberts A, Dart J, Paramalingam N, Levitt Katz L, Chaudhary N, Murphy K, Willi S, Schwartzman B, Kapadia C, Larson D, Bassi M, McClellan D, Shaibai G, Kelley L, Villa G, Kelley C, Diamond R, Kabbani M, Dajani T, Hoekstra F, Magorno M, Beam C, Holst J, Chauhan V, Wilson N, Bononi P, Sperl M, Millward A, Eaton M, Dean L, Olshan J, Renna H, Boulware D, Milliard C, Snyder D, Beaman S, Burch K, Chester J, Ahmann A, Wollam B, DeFrang D, Fitch R, Jahnke K, Bounmananh L, Hanavan K, Klopfenstein B, Nicol L, Bergstrom R, Noland T, Brodksy J, Bacon L, Quintos J, Topor L, Bialo S, Bream S, Bancroft B, Soto A, Lagarde W, Lockemer H, Vanderploeg T, Ibrahim M, Huie M, Sanchez V, Edelen R, Marchiando R, Freeman D, Palmer J, Repas T, Wasson M, Auker P, Culbertson J, Kieffer T, Voorhees D, Borgwardt T, DeRaad L, Eckert K, Gough J, Isaacson E, Kuhn H, Carroll A, Schubert M, Francis G, Hagan S, Le T, Penn M, Wickham E, Leyva C, Ginem J, Rivera K, Padilla J, Rodriguez I, Jospe N, Czyzyk J, Johnson B, Nadgir U, Marlen N, Prakasam G, Rieger C, Granger M, Glaser N, Heiser E, Harris B, Foster C, Slater H, Wheeler K, Donaldson D, Murray M, Hale D, Tragus R, Holloway M, Word D, Lynch J, Pankratz L, Rogers W, Newfield R, Holland S, Hashiguchi M, Gottschalk M, Philis-Tsimikas A, Rosal R, Kieffer M, Franklin S, Guardado S, Bohannon N, Garcia M, Aguinaldo T, Phan J, Barraza V, Cohen D, Pinsker J, Khan U, Lane P, Wiley J, Jovanovic L, Misra P, Wright M, Cohen D, Huang K, Skiles M, Maxcy S, Pihoker C, Cochrane K, Nallamshetty L, Fosse J, Kearns S, Klingsheim M, Wright N, Viles L, Smith H, Heller S, Cunningham M, Daniels A, Zeiden L, Parrimon Y, Field J, Walker R, Griffin K, Bartholow L, Erickson C, Howard J, Krabbenhoft B, Sandman C, Vanveldhuizen A, Wurlger J, Paulus K, Zimmerman A, Hanisch K, Davis-Keppen L, Cotterill A, Kirby J, Harris M, Schmidt A, Kishiyama C, Flores C, Milton J, Ramiro J, Martin W, Whysham C, Yerka A, Freels T, Hassing J, Webster J, Green R, Carter P, Galloway J, Hoelzer D, Ritzie AQL, Roberts S, Said S, Sullivan P, Allen H, Reiter E, Feinberg E, Johnson C, Newhook L, Hagerty D, White N, Sharma A, Levandoski L, Kyllo J, Johnson M, Benoit C, Iyer P, Diamond F, Hosono H, Jackman S, Barette L, Jones P, Shor A, Sills I, Bzdick S, Bulger J, Weinstock R, Douek I, Andrews R, Modgill G, Gyorffy G, Robin L, Vaidya N, Song X, Crouch S, O’Brien K, Thompson C, Thorne N, Blumer J, Kalic J, Klepek L, Paulett J, Rosolowski B, Horner J, Terry A, Watkins M, Casey J, Carpenter K, Burns C, Horton J, Pritchard C, Soetaert D, Wynne A, Kaiserman K, Halvorson M, Weinberger J, Chin C, Molina O, Patel C, Senguttuvan R, Wheeler M, Furet O, Steuhm C, Jelley D, Goudeau S, Chalmers L, Wootten M, Greer D, Panagiotopoulos C, Metzger D, Nguyen D, Horowitz M, Christiansen M, Glades E, Morimoto C, Macarewich M, Norman R, Harding P, Patin K, Vargas C, Barbanica A, Yu A, Vaidyanathan P, Osborne W, Mehra R, Kaster S, Neace S, Horner J, McDonough S, Reeves G, Cordrey C, Marrs L, Miller T, Dowshen S, Doyle D, Walker S, Catte D, Dean H, Drury-Brown M, McGee PF, Hackman B, Lee M, Malkani S, Cullen K, Johnson K, Hampton P, McCarrell M, Curtis C, Paul E, Zambrano Y, Hess KO, Phoebus D, Quinlan S, Raiden E, Batts E, Buddy C, Kirpatrick K, Ramey M, Shultz A, Webb C, Romesco M, Fradkin J, Blumberg E, Beck G, Brillon D, Gubitosi-Klug R, Laffel L, Veatch R, Wallace D, Braun J, Lernmark A, Lo B, Mitchell H, Naji A, Nerup J, Orchard T, Steffes M, Tsiatis A, Zinman B, Loechelt B, Baden L, Green M, Weinberg A, Marcovina S, Palmer JP, Weinberg A, Yu L, Babu S, Winter W, Eisenbarth GS, Bingley P, Clynes R, DiMeglio L, Eisenbarth G, Hays B, Marks J, Matheson D, Rodriguez H, Wilson D, Redondo MJ, Gomez D, Zheng X, Pena S, Pietropaolo M, Batts E, Brown T, Buckner J, Dove A, Hammond M, 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Espinoza O, Frank E, Liu J, Perry J, Pyle R, Rigby A, Riley K, Soto A, Gitelman S, Adi S, Anderson M, Berhel A, Breen K, Fraser K, Gerard-Gonzalez A, Jossan P, Lustig R, Moassesfar S, Mugg A, Ng D, Prahalod P, Rangel-Lugo M, Sanda S, Tarkoff J, Torok C, Wesch R, Aslan I, Buchanan J, Cordier J, Hamilton C, Hawkins L, Ho T, Jain A, Ko K, Lee T, Phelps S, Rosenthal S, Sahakitrungruang T, Stehl L, Taylor L, Wertz M, Wong J, Philipson L, Briars R, Devine N, Littlejohn E, Grant T, Gottlieb P, Klingensmith G, Steck A, Alkanani A, Bautista K, Bedoy R, Blau A, Burke B, Cory L, Dang M, Fitzgerald-Miller L, Fouts A, Gage V, Garg S, Gesauldo P, Gutin R, Hayes C, Hoffman M, Ketchum K, Logsden-Sackett N, Maahs D, Messer L, Meyers L, Michels A, Peacock S, Rewers M, Rodriguez P, Sepulbeda F, Sippl R, Steck A, Taki I, Tran BK, Tran T, Wadwa RP, Zeitler P, Barker J, Barry S, Birks L, Bomsburger L, Bookert T, Briggs L, Burdick P, Cabrera R, Chase P, Cobry E, Conley A, Cook G, Daniels J, DiDomenico D, 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Castleden H, Farthing N, Loud S, Matthews C, McGhee J, Morgan A, Pollitt J, Elliot-Jones R, Wheaton C, Knip M, Siljander H, Suomalainen H, Colman P, Healy F, Mesfin S, Redl L, Wentworth J, Willis J, Farley M, Harrison L, Perry C, Williams F, Mayo A, Paxton J, Thompson V, Volin L, Fenton C, Carr L, Lemon E, Swank M, Luidens M, Salgam M, Sharma V, Schade D, King C, Carano R, Heiden J, Means N, Holman L, Thomas I, Madrigal D, Muth T, Martin C, Plunkett C, Ramm C, Auchus R, Lane W, Avots E, Buford M, Hale C, Hoyle J, Lane B, Muir A, Shuler S, Raviele N, Ivie E, Jenkins M, Lindsley K, Hansen I, Fadoju D, Felner E, Bode B, Hosey R, Sax J, Jefferies C, Mannering S, Prentis R, She J, Stachura M, Hopkins D, Williams J, Steed L, Asatapova E, Nunez S, Knight S, Dixon P, Ching J, Donner T, Longnecker S, Abel K, Arcara K, Blackman S, Clark L, Cooke D, Plotnick L, Levin P, Bromberger L, Klein K, Sadurska K, Allen C, Michaud D, Snodgrass H, Burghen G, Chatha S, Clark C, Silverberg J, Wittmer C, Gardner J, LeBoeuf C, Bell P, McGlore O, Tennet H, Alba N, Carroll M, Baert L, Beaton H, Cordell E, Haynes A, Reed C, Lichter K, McCarthy P, McCarthy S, Monchamp T, Roach J, Manies S, Gunville F, Marosok L, Nelson T, Ackerman K, Rudolph J, Stewart M, McCormick K, May S, Falls T, Barrett T, Dale K, Makusha L, McTernana C, Penny-Thomas K, Sullivan K, Narendran P, Robbie J, Smith D, Christensen R, Koehler B, Royal C, Arthur T, Houser H, Renaldi J, Watsen S, Wu P, Lyons L, House B, Yu J, Holt H, Nation M, Vickers C, Watling R, Heptulla R, Trast J, Agarwal C, Newell D, Katikaneni R, Gardner C, Del Rio A, Logan A, Collier H, Rishton C, Whalley G, Ali A, Ramtoola S, Quattrin T, Mastrandea L, House A, Ecker M, Huang C, Gougeon C, Ho J, Pacuad D, Dunger D, May J, O’Brien C, Acerini C, Salgin B, Thankamony A, Williams R, Buse J, Fuller G, Duclos M, Tricome J, Brown H, Pittard D, Bowlby D, Blue A, Headley T, Bendre S, Lewis K, Sutphin K, Soloranzo C, Puskaric J, Madison H, Rincon M, Carlucci M, 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Trunnel S, Transue D, Surhigh J, Bezzaire D, Moltz K, Zacharski E, Henske J, Desai S, Frizelis K, Khan F, Sjoberg R, Allen K, Manning P, Hendry G, Taylor B, Jones S, Couch R, Danchak R, Lieberman D, Strader W, Bencomo M, Bailey T, Bedolla L, Roldan C, Moudiotis C, Vaidya B, Anning C, Bunce S, Estcourt S, Folland E, Gordon E, Harrill C, Ireland J, Piper J, Scaife L, Sutton K, Wilkins S, Costelloe M, Palmer J, Casas L, Miller C, Burgard M, Erickson C, Hallanger-Johnson J, Clark P, Taylor W, Galgani J, Banerjee S, Banda C, McEowen D, Kinman R, Lafferty A, Gillett S, Nolan C, Pathak M, Sondrol L, Hjelle T, Hafner S, Kotrba J, Hendrickson R, Cemeroglu A, Symington T, Daniel M, Appiagyei-Dankah Y, Postellon D, Racine M, Kleis L, Barnes K, Godwin S, McCullough H, Shaheen K, Buck G, Noel L, Warren M, Weber S, Parker S, Gillespie I, Nelson B, Frost C, Amrhein J, Moreland E, Hayes A, Peggram J, Aisenberg J, Riordan M, Zasa J, Cummings E, Scott K, Pinto T, Mokashi A, McAssey K, Helden E, Hammond P, Dinning L, Rahman S, Ray S, Dimicri C, Guppy S, Nielsen H, Vogel C, Ariza C, Morales L, Chang Y, Gabbay R, Ambrocio L, Manley L, Nemery R, Charlton W, Smith P, Kerr L, Steindel-Kopp B, Alamaguer M, Tabisola-Nuesca E, Pendersen A, Larson N, Cooper-Olviver H, Chan D, Fitz-Patrick D, Carreira T, Park Y, Ruhaak R, Liljenquist D. A Type 1 Diabetes Genetic Risk Score Predicts Progression of Islet Autoimmunity and Development of Type 1 Diabetes in Individuals at Risk. Diabetes Care 2018; 41:1887-1894. [PMID: 30002199 PMCID: PMC6105323 DOI: 10.2337/dc18-0087] [Citation(s) in RCA: 86] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/11/2018] [Accepted: 06/06/2018] [Indexed: 02/03/2023]
Abstract
OBJECTIVE We tested the ability of a type 1 diabetes (T1D) genetic risk score (GRS) to predict progression of islet autoimmunity and T1D in at-risk individuals. RESEARCH DESIGN AND METHODS We studied the 1,244 TrialNet Pathway to Prevention study participants (T1D patients' relatives without diabetes and with one or more positive autoantibodies) who were genotyped with Illumina ImmunoChip (median [range] age at initial autoantibody determination 11.1 years [1.2-51.8], 48% male, 80.5% non-Hispanic white, median follow-up 5.4 years). Of 291 participants with a single positive autoantibody at screening, 157 converted to multiple autoantibody positivity and 55 developed diabetes. Of 953 participants with multiple positive autoantibodies at screening, 419 developed diabetes. We calculated the T1D GRS from 30 T1D-associated single nucleotide polymorphisms. We used multivariable Cox regression models, time-dependent receiver operating characteristic curves, and area under the curve (AUC) measures to evaluate prognostic utility of T1D GRS, age, sex, Diabetes Prevention Trial-Type 1 (DPT-1) Risk Score, positive autoantibody number or type, HLA DR3/DR4-DQ8 status, and race/ethnicity. We used recursive partitioning analyses to identify cut points in continuous variables. RESULTS Higher T1D GRS significantly increased the rate of progression to T1D adjusting for DPT-1 Risk Score, age, number of positive autoantibodies, sex, and ethnicity (hazard ratio [HR] 1.29 for a 0.05 increase, 95% CI 1.06-1.6; P = 0.011). Progression to T1D was best predicted by a combined model with GRS, number of positive autoantibodies, DPT-1 Risk Score, and age (7-year time-integrated AUC = 0.79, 5-year AUC = 0.73). Higher GRS was significantly associated with increased progression rate from single to multiple positive autoantibodies after adjusting for age, autoantibody type, ethnicity, and sex (HR 2.27 for GRS >0.295, 95% CI 1.47-3.51; P = 0.0002). CONCLUSIONS The T1D GRS independently predicts progression to T1D and improves prediction along T1D stages in autoantibody-positive relatives.
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Affiliation(s)
- Maria J. Redondo
- Texas Children’s Hospital, Baylor College of Medicine, Houston, TX
| | | | - Andrea K. Steck
- Barbara Davis Center for Childhood Diabetes, University of Colorado School of Medicine, Aurora, CO
| | - Seth Sharp
- Institute of Biomedical and Clinical Science, University of Exeter, Exeter, U.K
| | - John M. Wentworth
- Walter and Eliza Hall Institute of Medical Research and Royal Melbourne Hospital, Parkville, Victoria, Australia
| | - Michael N. Weedon
- Institute of Biomedical and Clinical Science, University of Exeter, Exeter, U.K
| | | | | | | | | | - Richard A. Oram
- Institute of Biomedical and Clinical Science, University of Exeter, Exeter, U.K
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Dyett B, Zychowski L, Bao L, Meikle TG, Peng S, Yu H, Li M, Strachan J, Kirby N, Logan A, Conn CE, Zhang X. Crystallization of Femtoliter Surface Droplet Arrays Revealed by Synchrotron Small-Angle X-ray Scattering. Langmuir 2018; 34:9470-9476. [PMID: 30021434 DOI: 10.1021/acs.langmuir.8b01252] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
The crystallization of oil droplets is critical in the processing and storage of lipid-based food and pharmaceutical products. Arrays of femtoliter droplets on a surface offer a unique opportunity to study surfactant-free colloidlike systems. In this work, the crystal growth process in these confined droplets was followed by cooling a model lipid (trimyristin) from a liquid state utilizing synchrotron small-angle X-ray scattering (SAXS). The measurements by SAXS demonstrated a reduced crystallization rate and a greater degree of supercooling required to trigger lipid crystallization in droplets compared to those of bulk lipids. These results suggest that surface droplets crystallize in a stochastic manner. Interestingly, the crystallization rate is slower for larger femtoliter droplets, which may be explained by the onset of crystallization from the three-phase contact line. The larger surface nanodroplets exhibit a smaller ratio of droplet volume to the length of three-phase contact line and hence a slower crystallization rate.
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Affiliation(s)
| | - Lisa Zychowski
- CSIRO Agriculture and Food , Werribee , Victoria 3030 , Australia
| | | | | | | | | | | | | | - Nigel Kirby
- Australian Synchrotron , 800 Blackburn Road , Clayton , Victoria 3169 , Australia
| | - Amy Logan
- CSIRO Agriculture and Food , Werribee , Victoria 3030 , Australia
| | | | - Xuehua Zhang
- Department of Chemical and Materials Engineering , University of Alberta , Edmonton , T6G1H9 Alberta , Canada
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Timm K, Perera C, Ball V, Henry J, West J, Kerr M, Logan A, Griffin J, Murphy M, Heather L, Tyler D. Investigating real-time metabolic flux changes in a rat model of doxorubicin-induced cardiotoxicity using hyperpolarized 13C magnetic resonance spectroscopy. J Mol Cell Cardiol 2018. [DOI: 10.1016/j.yjmcc.2018.05.105] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Affiliation(s)
- A. Logan
- Inflammation and Ageing; University of Birmingham; Birmingham United Kingdom
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Liu Z, Logan A, Cocks BG, Rochfort S. Seasonal variation of polar lipid content in bovine milk. Food Chem 2017; 237:865-869. [PMID: 28764079 DOI: 10.1016/j.foodchem.2017.06.038] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [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: 03/06/2017] [Revised: 05/08/2017] [Accepted: 06/06/2017] [Indexed: 10/19/2022]
Abstract
Seasonal change of milk composition could offer opportunities for dairy manufacturers. A systematic survey on seasonal variation of six classes of polar lipids was conducted with 19 Holstein cows over the entire milking season using liquid chromatography-mass spectrometry technique. This study revealed that most polar lipid classes were positively correlated with the total fat content, but negatively correlated with fat globule size. All polar lipid classes displayed a large cow-to-cow variation as well as seasonal variation. All of the six classes showed a gradual increase over the milking season with the highest concentration observed in May (autumn). However, the proportion of different polar lipid classes remained constant during the entire milking season. This finding suggests that the production of polar lipids is highly regulated in the mammary gland. The implication of such a seasonal variation of polar lipids in the nutritional and technological aspects of milk is discussed.
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Affiliation(s)
- Zhiqian Liu
- Biosciences Research, Agriculture Victoria, AgriBio, 5 Ring Road, Bundoora, Victoria 3083, Australia.
| | - Amy Logan
- CSIRO Agriculture and Food, Werribee, Victoria 3030, Australia
| | - Benjamin G Cocks
- Biosciences Research, Agriculture Victoria, AgriBio, 5 Ring Road, Bundoora, Victoria 3083, Australia; School of Applied Systems Biology, La Trobe University, Bundoora, Victoria 3083, Australia
| | - Simone Rochfort
- Biosciences Research, Agriculture Victoria, AgriBio, 5 Ring Road, Bundoora, Victoria 3083, Australia; School of Applied Systems Biology, La Trobe University, Bundoora, Victoria 3083, Australia
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Abstract
Thirteen digital clefts (eight patients) were reviewed in which full-thickness plantar instep skin was used in syndactyly release. The results are presented, emphasising the good colour match of plantar instep skin with digital skin. There was a surprising lack of morbidity in the thirteen donor sites.
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Affiliation(s)
- N Zoltie
- Department of Plastic Surgery, West Norwich Hospital, Norfolk
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Zychowski LM, Logan A, Augustin MA, Kelly AL, Zabara A, O'Mahony JA, Conn CE, Auty MAE. Effect of Phytosterols on the Crystallization Behavior of Oil-in-Water Milk Fat Emulsions. J Agric Food Chem 2016; 64:6546-6554. [PMID: 27476512 DOI: 10.1021/acs.jafc.6b01722] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Milk has been used commercially as a carrier for phytosterols, but there is limited knowledge on the effect of added plant sterols on the properties of the system. In this study, phytosterols dispersed in milk fat at a level of 0.3 or 0.6% were homogenized with an aqueous dispersion of whey protein isolate (WPI). The particle size, morphology, ζ-potential, and stability of the emulsions were investigated. Emulsion crystallization properties were examined through the use of differential scanning calorimetry (DSC) and Synchrotron X-ray scattering at both small and wide angles. Phytosterol enrichment influenced the particle size and physical appearance of the emulsion droplets, but did not affect the stability or charge of the dispersed particles. DSC data demonstrated that, at the higher level of phytosterol addition, crystallization of milk fat was delayed, whereas, at the lower level, phytosterol enrichment induced nucleation and emulsion crystallization. These differences were attributed to the formation of separate phytosterol crystals within the emulsions at the high phytosterol concentration, as characterized by Synchrotron X-ray measurements. X-ray scattering patterns demonstrated the ability of the phytosterol to integrate within the milk fat triacylglycerol matrix, with a concomitant increase in longitudinal packing and system disorder. Understanding the consequences of adding phytosterols, on the physical and crystalline behavior of emulsions may enable the functional food industry to design more physically and chemically stable products.
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Affiliation(s)
- Lisa M Zychowski
- Food Chemistry and Technology Department, Teagasc Food Research Centre , Moorepark, Fermoy, County Cork, Ireland
- School of Food and Nutritional Sciences, University College Cork , Cork, Ireland
- CSIRO Food and Nutrition, Werribee, Victoria 3030, Australia
- School of Applied Science, RMIT University , Melbourne, Victoria 3000, Australia
| | - Amy Logan
- CSIRO Food and Nutrition, Werribee, Victoria 3030, Australia
| | | | - Alan L Kelly
- School of Food and Nutritional Sciences, University College Cork , Cork, Ireland
| | - Alexandru Zabara
- School of Applied Science, RMIT University , Melbourne, Victoria 3000, Australia
| | - James A O'Mahony
- School of Food and Nutritional Sciences, University College Cork , Cork, Ireland
| | - Charlotte E Conn
- School of Applied Science, RMIT University , Melbourne, Victoria 3000, Australia
| | - Mark A E Auty
- Food Chemistry and Technology Department, Teagasc Food Research Centre , Moorepark, Fermoy, County Cork, Ireland
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Ofori J, Freeman J, Logan A, Rapson R, Zajieck J, Hobart J, Marsden J. An investigation of commonly prescribed stretches of the ankle plantarflexors in people with Multiple Sclerosis. Clin Biomech (Bristol, Avon) 2016; 37:22-26. [PMID: 27286554 DOI: 10.1016/j.clinbiomech.2016.05.013] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/31/2015] [Revised: 04/04/2016] [Accepted: 05/18/2016] [Indexed: 02/07/2023]
Abstract
BACKGROUND Stretches are often prescribed to manage increased limb stiffness in people with Multiple Sclerosis. This study determined the ankle plantarflexor torque magnitude that people with Multiple Sclerosis can apply during four commonly prescribed stretches and determined the relationship between the applied torque and functional ability. METHODS People with Multiple Sclerosis (N=27) were compared to healthy control participants (n=15). Four stretches were investigated; stretching in step standing; using a step; pulling the ankle into dorsiflexion and standing in a frame. Joint position and forces were measured using 3D motion analysis and torque transducers. Baseline ankle strength and stiffness was measured using motor driven ankle perturbations. FINDINGS People with Multiple Sclerosis (N=27) had higher stretch reflex amplitudes and lower strength compared to the control group (n=15). People with Multiple Sclerosis achieved less lengthening of the plantarflexor muscle-tendon complex when stretching but similar ankle torques compared to controls. While stretching people with Multiple Sclerosis showed greater muscle activation in the ankle plantarflexors. Stretches in weight bearing positions produced higher plantarflexor torques. People with Multiple Sclerosis with lower functional ability preferred the more supported stretches (ankle pull and standing frame). INTERPRETATION Stretches in weight bearing positions achieve higher ankle torques but this is in part due to increased postural activity in people with Multiple Sclerosis. Functional ability may limit stretch effectiveness.
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Affiliation(s)
- J Ofori
- School of Health Professions, Faculty of Health and Human Sciences, University of Plymouth, PL6 8BH, UK
| | - J Freeman
- School of Health Professions, Faculty of Health and Human Sciences, University of Plymouth, PL6 8BH, UK
| | - A Logan
- Stroke Rehabilitation Unit, Camborne/Redruth Community Hospital, Barncoose Terrace, Redruth TR15 3ER, UK
| | - R Rapson
- Paediatrics and Learning Disabilities, South Devon Healthcare NHS Foundation Trust, Bidwell Brook School, Shinners Bridge, Dartington, TQ9 6JU, UK
| | - J Zajieck
- Peninsula College of Medicine and Dentistry University of Plymouth, PL6 8BH, UK
| | - J Hobart
- Peninsula College of Medicine and Dentistry University of Plymouth, PL6 8BH, UK
| | - J Marsden
- School of Health Professions, Faculty of Health and Human Sciences, University of Plymouth, PL6 8BH, UK.
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Gallego-Villar L, Rivera-Barahona A, Cuevas-Martín C, Guenzel A, Pérez B, Barry MA, Murphy MP, Logan A, Gonzalez-Quintana A, Martín MA, Medina S, Gil-Izquierdo A, Cuezva JM, Richard E, Desviat LR. In vivo evidence of mitochondrial dysfunction and altered redox homeostasis in a genetic mouse model of propionic acidemia: Implications for the pathophysiology of this disorder. Free Radic Biol Med 2016; 96:1-12. [PMID: 27083476 DOI: 10.1016/j.freeradbiomed.2016.04.007] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/14/2016] [Revised: 04/01/2016] [Accepted: 04/02/2016] [Indexed: 12/16/2022]
Abstract
Accumulation of toxic metabolites has been described to inhibit mitochondrial enzymes, thereby inducing oxidative stress in propionic acidemia (PA), an autosomal recessive metabolic disorder caused by the deficiency of mitochondrial propionyl-CoA carboxylase. PA patients exhibit neurological deficits and multiorgan complications including cardiomyopathy. To investigate the role of mitochondrial dysfunction in the development of these alterations we have used a hypomorphic mouse model of PA that mimics the biochemical and clinical hallmarks of the disease. We have studied the tissue-specific bioenergetic signature by Reverse Phase Protein Microarrays and analysed OXPHOS complex activities, mtDNA copy number, oxidative damage, superoxide anion and hydrogen peroxide levels. The results show decreased levels and/or activity of several OXPHOS complexes in different tissues of PA mice. An increase in mitochondrial mass and OXPHOS complexes was observed in brain, possibly reflecting a compensatory mechanism including metabolic reprogramming. mtDNA depletion was present in most tissues analysed. Antioxidant enzymes were also found altered. Lipid peroxidation was present along with an increase in hydrogen peroxide and superoxide anion production. These data support the hypothesis that oxidative damage may contribute to the pathophysiology of PA, opening new avenues in the identification of therapeutic targets and paving the way for in vivo evaluation of compounds targeting mitochondrial biogenesis or reactive oxygen species production.
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Affiliation(s)
- L Gallego-Villar
- Centro de Biología Molecular Severo Ochoa UAM-CSIC, Universidad Autónoma, Madrid, Spain; CIBER de Enfermedades Raras (CIBERER), ISCIII, Madrid, Spain; Centro de Diagnóstico de Enfermedades Moleculares (CEDEM), Madrid, Spain
| | - A Rivera-Barahona
- Centro de Biología Molecular Severo Ochoa UAM-CSIC, Universidad Autónoma, Madrid, Spain; CIBER de Enfermedades Raras (CIBERER), ISCIII, Madrid, Spain; Centro de Diagnóstico de Enfermedades Moleculares (CEDEM), Madrid, Spain
| | - C Cuevas-Martín
- Centro de Biología Molecular Severo Ochoa UAM-CSIC, Universidad Autónoma, Madrid, Spain; CIBER de Enfermedades Raras (CIBERER), ISCIII, Madrid, Spain
| | | | - B Pérez
- Centro de Biología Molecular Severo Ochoa UAM-CSIC, Universidad Autónoma, Madrid, Spain; CIBER de Enfermedades Raras (CIBERER), ISCIII, Madrid, Spain; Centro de Diagnóstico de Enfermedades Moleculares (CEDEM), Madrid, Spain
| | | | - M P Murphy
- Medical Research Council, Mitochondrial Biology Unit, Cambridge, UK
| | - A Logan
- Medical Research Council, Mitochondrial Biology Unit, Cambridge, UK
| | - A Gonzalez-Quintana
- CIBER de Enfermedades Raras (CIBERER), ISCIII, Madrid, Spain; Instituto de Investigación Hospital 12 de Octubre (i+12), Madrid, Spain
| | - M A Martín
- CIBER de Enfermedades Raras (CIBERER), ISCIII, Madrid, Spain; Instituto de Investigación Hospital 12 de Octubre (i+12), Madrid, Spain
| | - S Medina
- Department of Food Science and Technology, CEBAS-CSIC, Campus de Espinardo 25, 30100 Espinardo, Murcia, Spain
| | - A Gil-Izquierdo
- Department of Food Science and Technology, CEBAS-CSIC, Campus de Espinardo 25, 30100 Espinardo, Murcia, Spain
| | - J M Cuezva
- Centro de Biología Molecular Severo Ochoa UAM-CSIC, Universidad Autónoma, Madrid, Spain; CIBER de Enfermedades Raras (CIBERER), ISCIII, Madrid, Spain
| | - E Richard
- Centro de Biología Molecular Severo Ochoa UAM-CSIC, Universidad Autónoma, Madrid, Spain; CIBER de Enfermedades Raras (CIBERER), ISCIII, Madrid, Spain; Centro de Diagnóstico de Enfermedades Moleculares (CEDEM), Madrid, Spain
| | - L R Desviat
- Centro de Biología Molecular Severo Ochoa UAM-CSIC, Universidad Autónoma, Madrid, Spain; CIBER de Enfermedades Raras (CIBERER), ISCIII, Madrid, Spain; Centro de Diagnóstico de Enfermedades Moleculares (CEDEM), Madrid, Spain.
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Versteeg C, Logan A, Müller W. Corrigendum to “Australian milk fat—Seasonal and regional variation of melting properties” (J. Dairy Sci. 99:2571–2587). J Dairy Sci 2016; 99:4997. [DOI: 10.3168/jds.2016-99-6-4997] [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: 11/19/2022]
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Versteeg C, Logan A, Müller W. Australian milk fat--Seasonal and regional variation of melting properties. J Dairy Sci 2016; 99:2571-2587. [PMID: 26874410 DOI: 10.3168/jds.2015-10146] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2015] [Accepted: 12/23/2015] [Indexed: 11/19/2022]
Abstract
The solid fat content and dropping point of milk fat obtained over 2 yr and from 19 bulk milk production sites across Australia were characterized. Solid fat content at 5 °C and 20 °C, respectively, ranged between 49.9 and 66.1% and between 14.6 and 29.6% across all sites. Dropping point ranged between 30.5 and 35.4 °C. The dropping point did not correlate with solid fat content at lower temperatures across several sites, indicating that it is not an accurate or useful measure of functionality at temperatures of 15 °C or below. Although at times, considerable variation was observed in milk fat melting properties between sites located in similar geographic regions, statistical analysis by means of boxplots and multidimensional scaling revealed broad similarities within regions over the 24 mo. Multidimensional scaling also revealed similarities between some quite distant and diverse regions (e.g., Queensland and South Australia with constant and seasonal production, respectively). These analyses were used to make 5 groups from the 19 sites to describe seasonal melting properties. The groups with sites in west Victoria, southeast Victoria, and Tasmania showed the largest seasonal variation and range of values, with peaks and lows in southeast Victoria and Tasmania occurring up to 3 mo later than in west Victoria. The group with sites in New South Wales, Queensland, and South Australia had the least variation and range of values, which were relatively high throughout. The group with Western Australian sites showed medium levels of variation but distinct seasonal patterns, with solids fats typically below and dropping points higher than the national average. The Victorian group's lows in dropping point occurred about 2 mo later than did the low values of solid fat content. No single factor stood out as determining the variation in melting properties.
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Affiliation(s)
- Cornelis Versteeg
- CSIRO Food and Nutrition, 671 Sneydes Road, Werribee, Victoria, Australia, 3030
| | - Amy Logan
- CSIRO Food and Nutrition, 671 Sneydes Road, Werribee, Victoria, Australia, 3030.
| | - Warren Müller
- CSIRO Digital Productivity, GPO Box 664, Canberra, ACT, Australia 2601
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Sajjad Z, Ismael S, Mahmoud S, Logan A. The quality of anatomical restoration following distal radius fracture fixation using volar plating system. Int J Surg 2015. [DOI: 10.1016/j.ijsu.2015.07.385] [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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Scott R, Hill L, de Cogan F, O'Neill J, Logan A. Cell penetrating peptide constructs: A novel drug delivery to the eye. Acta Ophthalmol 2015. [DOI: 10.1111/j.1755-3768.2015.0520] [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: 11/30/2022]
Affiliation(s)
- R. Scott
- Ophthalmology; Birmingham and Midland Eye Centre; Birmingham United Kingdom
| | - L. Hill
- School of Clinical and Experimental Medicine; University of Birmingham; Birmingham United Kingdom
| | - F. de Cogan
- School of Clinical and Experimental Medicine; University of Birmingham; Birmingham United Kingdom
| | - J. O'Neill
- School of Clinical and Experimental Medicine; University of Birmingham; Birmingham United Kingdom
| | - A. Logan
- School of Clinical and Experimental Medicine; University of Birmingham; Birmingham United Kingdom
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Logan A, Leis A, Day L, Øiseth SK, Puvanenthiran A, Augustin MA. Rennet gelation properties of milk: Influence of natural variation in milk fat globule size and casein micelle size. Int Dairy J 2015. [DOI: 10.1016/j.idairyj.2014.08.005] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Saif MA, Borrill R, Bigger BW, Lee H, Logan A, Poulton K, Hughes S, Turner AJ, Bonney DK, Wynn RF. In vivo T-cell depletion using alemtuzumab in family and unrelated donor transplantation for pediatric non-malignant disease achieves engraftment with low incidence of graft vs. host disease. Pediatr Transplant 2015; 19:211-8. [PMID: 25546609 DOI: 10.1111/petr.12416] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 11/25/2014] [Indexed: 11/30/2022]
Abstract
In vivo T-cell depletion, using alemtuzumab therapy prior to SCT, can reduce the incidence of GVHD. This treatment has a potential to delay immune reconstitution resulting in increased morbidity due to viral illnesses. We retrospectively analyzed data on all pediatric patients with non-malignant disorders who received alemtuzumab-based conditioning regimens in our center over the last 10 yr (n = 91). Our data show an OS of 91.2%. The incidence of acute (grade 2-4) GVHD was 18.7% and that of chronic GVHD 5.5%. Viremia due to adenovirus, EBV and CMV was seen in 19.8%, 64.8% and 39.6% patients, respectively, with only two deaths attributed to viral infection (adenovirus). Chimerism level at three month was predictive of graft outcome. Nine patients, who had graft failure after first SCT, were salvaged with a second SCT using RIC and same donor (if available). Based on these results, we conclude that the use of in vivo T-cell depletion is safe, achieves good chimerism and does not lead to increased morbidity and mortality due to viral infections. It is associated with a reduced incidence of chronic GVHD.
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Affiliation(s)
- M A Saif
- Department of Blood and Marrow Transplant, Royal Manchester Children's Hospital, Manchester, UK
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Thiyam-Holländer U, Aladedunye F, Logan A, Yang H, Diehl BWK. Identification and quantification of canolol and related sinapate precursors in Indian mustard oils and Canadian mustard products. EUR J LIPID SCI TECH 2014. [DOI: 10.1002/ejlt.201400222] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Usha Thiyam-Holländer
- Department of Human Nutritional Sciences; Richardson Centre for Functional Foods and Nutraceuticals, The University of Manitoba; Winnipeg MB Canada
| | - Felix Aladedunye
- Department of Human Nutritional Sciences; Richardson Centre for Functional Foods and Nutraceuticals, The University of Manitoba; Winnipeg MB Canada
| | - Amy Logan
- CSIRO Animal; Food and Health Sciences; Werribee Victoria Australia
| | - Haifeng Yang
- Department of Human Nutritional Sciences; Richardson Centre for Functional Foods and Nutraceuticals, The University of Manitoba; Winnipeg MB Canada
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Hill LJ, Botfield H, Hossain-Ibrahim MK, Logan A, Cruickshank GS. OP07 * THE IMMUNOMODULATORY EFFECTS OF DECORIN - A NOVEL AGENT FOR THE TREATMENT OF GLIOBLASTOMA MULTIFORME. Neuro Oncol 2014. [DOI: 10.1093/neuonc/nou251.7] [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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Logan A, Auldist M, Greenwood J, Day L. Natural variation of bovine milk fat globule size within a herd. J Dairy Sci 2014; 97:4072-82. [PMID: 24835967 DOI: 10.3168/jds.2014-8010] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [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: 02/03/2014] [Accepted: 03/24/2014] [Indexed: 11/19/2022]
Abstract
Native milk fat globule (MFG) size, pH, total fat, protein, and lactose composition in milk from individual cows was examined in autumn and spring 2012 and autumn 2013. Mean MFG diameters ranged between 2.5 and 5.7 µm. Some cows were observed to consistently produce small or large MFG throughout the sampling period, though trends were not consistent across all cows. Small-MFG milk contained more total polar lipids; however, the relative proportion of individual polar lipids did not differ with MFG size, with the exception of phosphatidylcholine, which was greater in small-MFG milk. No significant correlation between MFG size and proximate composition, including calculated fat yield or pH, was found. This work revealed a natural cow-to-cow variation in MFG size exists, which could potentially be exploited to improve the functionality of milk for manufacturing and some products.
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Affiliation(s)
- A Logan
- CSIRO Animal, Food and Health Sciences, Werribee, Victoria, Australia 3030.
| | - M Auldist
- Department of Environment and Primary Industries, Ellinbank Centre, Farming Systems Research Division, Ellinbank, Victoria, Australia 3821
| | - J Greenwood
- Department of Environment and Primary Industries, Ellinbank Centre, Farming Systems Research Division, Ellinbank, Victoria, Australia 3821
| | - L Day
- CSIRO Animal, Food and Health Sciences, Werribee, Victoria, Australia 3030
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Winkler-Moser JK, Logan A, Bakota EL. Antioxidant activities and interactions of α- and γ-tocopherols within canola and soybean oil emulsions. EUR J LIPID SCI TECH 2014. [DOI: 10.1002/ejlt.201300401] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [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]
Affiliation(s)
- Jill K. Winkler-Moser
- United States Department of Agriculture, Agricultural Research Service; National Center for Agricultural Utilization Research, Functional Foods Research; Peoria Illinois USA
| | - Amy Logan
- CSIRO, Animal; Food and Health Sciences; Werribee Victoria Australia
| | - Erica L. Bakota
- United States Department of Agriculture, Agricultural Research Service; National Center for Agricultural Utilization Research, Functional Foods Research; Peoria Illinois USA
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Yu E, Calvert P, Mercer J, Harrison J, Baker L, Figg N, Kumar S, Wang J, Hurst L, Obaid D, Logan A, West N, Clarke M, Vidal-Puig A, Murphy M, Bennett M. Mitochondrial DNA damage can promote atherosclerosis independently of reactive oxygen species and correlates with higher risk plaques in humans. Atherosclerosis 2014. [DOI: 10.1016/j.atherosclerosis.2013.11.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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