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Aerobic exercise increases post-exercise exogenous protein oxidation in healthy young males

Reckman, Gerlof A.R.; Navis, Gerjan J.; Krijnen, Wim P. (Statistical Techniques For Applied Research); Vonk, Roel J.; Jager-Wittenaar, Harriët (Healthy Ageing, Allied Health Care And Nursing); van der Schans, Cees P (Healthy Ageing, Allied Health Care And Nursing)

The capacity to utilize ingested protein for optimal support of protein synthesis and lean body mass is described within the paradigm of anabolic competence. Protein synthesis can be stimulated by physical exercise, however, it is not known if physical exercise affects post-exercise protein oxidation. …

2019-11-01AlgemeenArtikel

Validation of direct analysis of nickel in organic matrix by F-AAS

Nicolas Tonnon (Student); J. Bollyn (Begeleider); Geert Mol (Begeleider); Tanja Moerdijk-Poortvliet (Begeleider)

A method for directly analysing the nickel content of organic samples by flame atomic absorption is validated. This method is developed to bypass the conventional preparation step for aqueous atomic absorption, which is microwave digestion. The working range of the method is 0 – 30 ppm. The limits of …

2019-06-20ICT & Media; …Bachelor

Validatie van verschillende methodes op de ICP-OES van metalen in organische en anorganische monsters

Amina Sufi (Student)

Saybolt is a petrochemical company that invest in different types of oils and fuels. Saybolt Vlaardingen has purchased a new Perkin Elmer Optima 8300 ICP-OES (Inductively coupled plasma optical-emission spectrometry) that must be validated. The ICP-OES is used to analyze metals in petroleum products. This …

2019-04-23TechniekBachelor

Palaeoproteomics of bird bones for taxonomic classification

Ivo Horn (Onderzoeker); Yvo Kenens (Student); Magnus Palmblad (Onderzoeker); Suzanne van der Plas-Duivesteijn (Onderzoeker); Bram Langeveld; Hanneke Meijer; Hans Dalebout; Rob Marissen; Anja Fischer; Vincent Florens; Jonas Niemann; Kenneth Rijsdijk; Anne Schulp; Jeroen F.J. Laros (Onderzoeker); Barbara Gravendeel (Lector)

We used proteomic profiling to taxonomically classify extinct, alongside extant bird species using mass spectrometry on ancient bone-derived collagen chains COL1A1 and COL1A2. Proteins of Holocene and Late Pleistocene-aged bones from dodo (Raphus cucullatus) and great auk (Pinguinus impennis), as well …

2019-04-16Natuur & LandbouwArtikel

Response to: "The use of ultrasound for the estimation of muscle mass: one site fits most?"

Nijholt, Willemke; Jager-Wittenaar, Harriët (Malnutrition And Healthy Ageing); Scafoglieri, Aldo; Hobbelen, Hans (Ageing And Allied Health Care); van der Schans, Cees (Healthy Ageing, Allied Health Care And Nursing)

The performance of neural electrodes in physiological fluid, especially in chronic use, is critical for the success of functional electrical stimulation devices. Tips of the Utah electrode arrays (UEAs) were coated with sputtered iridium oxide film (SIROF) and activated iridium oxide film (AIROF) to …

2018-06-01AlgemeenArtikel

Sensitivity of a 13C-protein oxidation breath test investigated with a protein restricted diet in healthy subjects

Reckman, Gerlof; Navis, Gerjan; van der Schans, Cees (Healthy Ageing, Allied Health Care And Nursing); Vonk, Roel; Jager-Wittenaar, Harriët (Malnutrition And Healthy Ageing)

RATIONALE: Disturbed protein metabolism may result in malnutrition. A non-invasive low cost clinical tool to measure protein metabolism is lacking. Explorative research (n=1) with a newly developed non-invasive 13C-protein breath test suggested a decrease in protein oxidation after a protein restricted …

2017-09AlgemeenConferentiebijdrage

Sensitivity of a 13C-protein oxidation breath test investigated with a protein restricted diet in healthy subjects

Reckman, Gerlof; Navis, Gerjan; van der Schans, Cees (Healthy Ageing, Allied Health Care And Nursing); Vonk, Roel; Jager-Wittenaar, Harriët (Malnutrition And Healthy Ageing)

2017-09AlgemeenConferentiebijdrage

Monoterpene isolated from the essential oil of Trachyspermum ammi is cytotoxic to multidrug-resistant Pseudomonas aeruginosa and Staphylococcus aureus strains

Fereshteh Jabalameli (Onderzoeker); Farideh Hosseinkhani (Onderzoeker); Maryam Banar (Onderzoeker); Nafiseh Abdellahi (Onderzoeker); Morovat Taherikalani (Onderzoeker); Willem van Leeuwen (Lector); Mohammad Emaneini (Onderzoeker)

INTRODUCTION: The aim of this study was to determine whether an herbal extract containing monoterpene exhibited activity against multidrug-resistant Staphylococcus aureus and Pseudomonas aeruginosa isolated from clinical infection samples. METHODS: The essential oil of Trachyspermum ammi (L.) Sprague …

2016Natuur & LandbouwArtikel

13C protein oxidation in breath

Reckman, Gerlof; Koehorst, Martijn; Priebe, Marion; Schierbeek, Henk; Vonk, Roel

Introduction: The kinetics of protein oxidation, monitored in breath, and its contribution to the whole body protein status is not well established. Objectives: To analyze protein oxidation in various metabolic conditions we developed/validated a 13C-protein oxidation breath test using low enriched milk …

2016AlgemeenArtikel

Method development and validation of imidacloprid and its metabolites in the snail Lymnaea stagnalis digestive gland with liquid chromatography and triple quadrupole mass spectrometry.

Leyla el Khamlichi (Student)

Result of the study on the exposure of imidacloprid on Lymnaea stagnails, have led to this study. The results indicate that imidacloprid might be metabolized to other components. Therefore the aim of the study was two folded: 1. To develop a method for the quantification of imidacloprid and its metabolites. …

2015-11-27TechniekBachelor

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