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Items: 1 to 50 of 143


Changing young people's food-related behaviour: a socio-ecological perspective.

de Villiers A, Faber M.

Public Health Nutr. 2019 Aug;22(11):1917-1919. doi: 10.1017/S136898001900123X. No abstract available.


Association between school-level attributes and weight status of Ghanaian primary school children.

Adom T, Kengne AP, De Villiers A, Puoane T.

BMC Public Health. 2019 May 15;19(1):577. doi: 10.1186/s12889-019-6937-4.


Enhanced Recovery After Surgery.

Parks L, Routt M, De Villiers A.

J Adv Pract Oncol. 2018 Jul-Aug;9(5):511-519. Epub 2018 Jul 1. Review.


Prevalence and correlates of overweight and obesity among school children in an urban district in Ghana.

Adom T, De Villiers A, Puoane T, Kengne AP.

BMC Obes. 2019 Apr 1;6:14. doi: 10.1186/s40608-019-0234-8. eCollection 2019.


Glycated haemoglobin threshold for dysglycaemia screening, and application to metabolic syndrome diagnosis in HIV-infected Africans.

Nguyen KA, Peer N, de Villiers A, Mukasa B, Matsha TE, Mills EJ, Kengne AP.

PLoS One. 2019 Jan 31;14(1):e0211483. doi: 10.1371/journal.pone.0211483. eCollection 2019.


Nutrient profile and energy cost of food sold by informal food vendors to learners in primary and secondary schools in the Eastern Cape, South Africa.

Faber M, de Villiers A, Hill J, van Jaarsveld PJ, Okeyo AP, Seekoe E.

Public Health Nutr. 2018 Dec 26:1-10. doi: 10.1017/S1368980018003464. [Epub ahead of print]


Associations of perceived neighbourhood safety from traffic and crime with overweight/obesity among South African adults of low-socioeconomic status.

Malambo P, De Villiers A, Lambert EV, Puoane T, Kengne AP.

PLoS One. 2018 Oct 31;13(10):e0206408. doi: 10.1371/journal.pone.0206408. eCollection 2018.


Differential associations of cardio-metabolic diseases by population group, gender and adiposity in South Africa.

Peer N, Balakrishna Y, de Villiers A, Naidoo P.

PLoS One. 2018 Sep 27;13(9):e0202899. doi: 10.1371/journal.pone.0202899. eCollection 2018.


Comprehensive Three-Dimensional LC × LC × Ion Mobility Spectrometry Separation Combined with High-Resolution MS for the Analysis of Complex Samples.

Venter P, Muller M, Vestner J, Stander MA, Tredoux AGJ, Pasch H, de Villiers A.

Anal Chem. 2018 Oct 2;90(19):11643-11650. doi: 10.1021/acs.analchem.8b03234. Epub 2018 Sep 20.


Prevalence, detection, treatment, and control of hypertension in human immunodeficiency virus (HIV)-infected patients attending HIV clinics in the Western Cape Province, South Africa.

Mutemwa M, Peer N, de Villiers A, Mukasa B, Matsha TE, Mills EJ, Kengne AP.

Medicine (Baltimore). 2018 Aug;97(35):e12121. doi: 10.1097/MD.0000000000012121.


Predictive kinetic optimisation of hydrophilic interaction chromatography × reversed phase liquid chromatography separations: Experimental verification and application to phenolic analysis.

Muller M, Tredoux AGJ, de Villiers A.

J Chromatogr A. 2018 Oct 12;1571:107-120. doi: 10.1016/j.chroma.2018.08.004. Epub 2018 Aug 4.


The relationship between objectively-measured attributes of the built environment and selected cardiovascular risk factors in a South African urban setting.

Malambo P, De Villiers A, Lambert EV, Puoane T, Kengne AP.

BMC Public Health. 2018 Jul 9;18(1):847. doi: 10.1186/s12889-018-5772-3.


The HealthKick Study: Modifiable Lifestyle Factors in Primary Caregivers of Primary School Learners from Two School Districts in the Western Cape Province, South Africa.

de Villiers A, Senekal M, Nel J, Draper CE, Lambert E, Steyn NP.

Ethn Dis. 2018 Apr 26;28(2):93-98. doi: 10.18865/ed.28.2.93. eCollection 2018 Spring.


An Exercise Intervention to Unravel the Mechanisms Underlying Insulin Resistance in a Cohort of Black South African Women: Protocol for a Randomized Controlled Trial and Baseline Characteristics of Participants.

Goedecke JH, Mendham AE, Clamp L, Nono Nankam PA, Fortuin-de Smidt MC, Phiri L, Micklesfield LK, Keswell D, Woudberg NJ, Lecour S, Alhamud A, Kaba M, Lutomia FM, van Jaarsveld PJ, de Villiers A, Kahn SE, Chorell E, Hauksson J, Olsson T.

JMIR Res Protoc. 2018 Apr 18;7(4):e75. doi: 10.2196/resprot.9098.


Enhancing the Possibilities of Comprehensive Two-Dimensional Liquid Chromatography through Hyphenation of Purely Aqueous Temperature-Responsive and Reversed-Phase Liquid Chromatography.

Baert M, Martens S, Desmet G, de Villiers A, Du Prez F, Lynen F.

Anal Chem. 2018 Apr 17;90(8):4961-4967. doi: 10.1021/acs.analchem.7b04914. Epub 2018 Mar 30.


A validated patient-specific FSI model for vascular access in haemodialysis.

de Villiers AM, McBride AT, Reddy BD, Franz T, Spottiswoode BS.

Biomech Model Mechanobiol. 2018 Apr;17(2):479-497. doi: 10.1007/s10237-017-0973-8. Epub 2017 Nov 14.


Evaluation of a Mass-Media Campaign to Increase the Awareness of the Need to Reduce Discretionary Salt Use in the South African Population.

Wentzel-Viljoen E, Steyn K, Lombard C, De Villiers A, Charlton K, Frielinghaus S, Crickmore C, Mungal-Singh V.

Nutrients. 2017 Nov 12;9(11). pii: E1238. doi: 10.3390/nu9111238.


Optimal waist circumference threshold for diagnosing metabolic syndrome in African people living with HIV infection.

Nguyen KA, Peer N, de Villiers A, Mukasa B, Matsha TE, Mills EJ, Kengne AP.

PLoS One. 2017 Sep 8;12(9):e0183029. doi: 10.1371/journal.pone.0183029. eCollection 2017.


Detailed qualitative analysis of honeybush tea (Cyclopia spp.) volatiles by comprehensive two-dimensional gas chromatography coupled to time-of-flight mass spectrometry and relation with sensory data.

Ntlhokwe G, Muller M, Joubert E, Tredoux AGJ, de Villiers A.

J Chromatogr A. 2018 Feb 9;1536:137-150. doi: 10.1016/j.chroma.2017.08.054. Epub 2017 Aug 24.


Does Physical Activity Mediate the Association Between Perceived Neighborhood Aesthetics and Overweight/Obesity Among South African Adults Living in Selected Urban and Rural Communities?

Malambo P, Kengne AP, Lambert EV, De Villiers A, Puoane T.

J Phys Act Health. 2017 Dec 1;14(12):925-932. doi: 10.1123/jpah.2016-0147. Epub 2017 Oct 12.


Are invasive populations characterized by a broader diet than native populations?

Courant J, Vogt S, Marques R, Measey J, Secondi J, Rebelo R, De Villiers A, Ihlow F, De Busschere C, Backeljau T, Rödder D, Herrel A.

PeerJ. 2017 May 16;5:e3250. doi: 10.7717/peerj.3250. eCollection 2017.


Analysis of honeybush tea (Cyclopia spp.) volatiles by comprehensive two-dimensional gas chromatography using a single-stage thermal modulator.

Ntlhokwe G, Tredoux AGJ, Górecki T, Edwards M, Vestner J, Muller M, Erasmus L, Joubert E, Christel Cronje J, de Villiers A.

Anal Bioanal Chem. 2017 Jul;409(17):4127-4138. doi: 10.1007/s00216-017-0360-4. Epub 2017 Apr 17.


Protocol for a scoping review of existing policies on the prevention and control of obesity across countries in Africa.

Adom T, Puoane T, De Villiers A, Kengne AP.

BMJ Open. 2017 Feb 22;7(2):e013541. doi: 10.1136/bmjopen-2016-013541.


Metabolic Syndrome in People Living with Human Immunodeficiency Virus: An Assessment of the Prevalence and the Agreement between Diagnostic Criteria.

Nguyen KA, Peer N, de Villiers A, Mukasa B, Matsha TE, Mills EJ, Kengne AP.

Int J Endocrinol. 2017;2017:1613657. doi: 10.1155/2017/1613657. Epub 2017 Mar 14.


Protocol for systematic review of school-based interventions to prevent and control obesity in African learners.

Adom T, Puoane T, De Villiers A, Kengne AP.

BMJ Open. 2017 Mar 27;7(3):e013540. doi: 10.1136/bmjopen-2016-013540.


Phenolic profiling of rooibos using off-line comprehensive normal phase countercurrent chromatography×reversed phase liquid chromatography.

Walters NA, de Villiers A, Joubert E, de Beer D.

J Chromatogr A. 2017 Mar 24;1490:102-114. doi: 10.1016/j.chroma.2017.02.021. Epub 2017 Feb 14.


Effectiveness of a screening programme in identifying individuals with increased risk of cardiovascular disease in South Africa.

Peer N, Balakrishna Y, de Villiers A, Crickmore C, Mungal-Singh V.

J Public Health (Oxf). 2018 Mar 1;40(1):e34-e45. doi: 10.1093/pubmed/fdx012.


Multivariate analysis of variance of designed chromatographic data. A case study involving fermentation of rooibos tea.

Marini F, de Beer D, Walters NA, de Villiers A, Joubert E, Walczak B.

J Chromatogr A. 2017 Mar 17;1489:115-125. doi: 10.1016/j.chroma.2017.02.007. Epub 2017 Feb 4.


Prevalence of obesity and overweight in African learners: a protocol for systematic review and meta-analysis.

Adom T, Puoane T, De Villiers A, Kengne AP.

BMJ Open. 2017 Jan 13;7(1):e013538. doi: 10.1136/bmjopen-2016-013538.


Prevalence and socio-demographic correlates of physical activity levels among South African adults in Cape Town and Mount Frere communities in 2008-2009.

Malambo P, Kengne AP, Lambert EV, De Villiers A, Puoane T.

Arch Public Health. 2016 Dec 29;74:54. doi: 10.1186/s13690-016-0167-3. eCollection 2016.


Evaluation of capillary electrophoresis for the analysis of rooibos and honeybush tea phenolics.

Arries WJ, Tredoux AG, de Beer D, Joubert E, de Villiers A.

Electrophoresis. 2017 Mar;38(6):897-905. doi: 10.1002/elps.201600349. Epub 2016 Dec 27.


Built Environment, Selected Risk Factors and Major Cardiovascular Disease Outcomes: A Systematic Review.

Malambo P, Kengne AP, De Villiers A, Lambert EV, Puoane T.

PLoS One. 2016 Nov 23;11(11):e0166846. doi: 10.1371/journal.pone.0166846. eCollection 2016. Review.


Results From South Africa's 2016 Report Card on Physical Activity for Children and Youth.

Uys M, Bassett S, Draper CE, Micklesfield L, Monyeki A, de Villiers A, Lambert EV; HAKSA 2016 Writing Group.

J Phys Act Health. 2016 Nov;13(11 Suppl 2):S265-S273.


The Distribution of Obesity Phenotypes in HIV-Infected African Population.

Nguyen KA, Peer N, de Villiers A, Mukasa B, Matsha TE, Mills EJ, Kengne AP.

Nutrients. 2016 Jun 2;8(6). pii: E299. doi: 10.3390/nu8060299.


Primary School Children's Nutrition Knowledge, Self-Efficacy, and Behavior, after a Three-Year Healthy Lifestyle Intervention (HealthKick).

de Villiers A, Steyn NP, Draper CE, Hill J, Gwebushe N, Lambert EV, Lombard C.

Ethn Dis. 2016 Apr 21;26(2):171-80. doi: 10.18865/ed.26.2.171.


Toward automated chromatographic fingerprinting: A non-alignment approach to gas chromatography mass spectrometry data.

Vestner J, de Revel G, Krieger-Weber S, Rauhut D, du Toit M, de Villiers A.

Anal Chim Acta. 2016 Mar 10;911:42-58. doi: 10.1016/j.aca.2016.01.020. Epub 2016 Jan 22.


Recent advances and trends in the liquid-chromatography-mass spectrometry analysis of flavonoids.

de Villiers A, Venter P, Pasch H.

J Chromatogr A. 2016 Jan 22;1430:16-78. doi: 10.1016/j.chroma.2015.11.077. Epub 2015 Nov 28. Review.


Impact of a South African School-based Intervention, HealthKick, on Fitness Correlates.

Uys M, Draper CE, Hendricks S, de Villiers A, Fourie J, Steyn NP, Lambert EV.

Am J Health Behav. 2016 Jan;40(1):55-66. doi: 10.5993/AJHB.40.1.7.


Using formative research to develop a nutrition education resource aimed at assisting low-income households in South Africa adopt a healthier diet.

Everett-Murphy K, De Villiers A, Ketterer E, Steyn K.

Health Educ Res. 2015 Dec;30(6):882-96. doi: 10.1093/her/cyv051.


Comprehensive Two-Dimensional Hydrophilic Interaction Chromatography (HILIC) × Reversed-Phase Liquid Chromatography Coupled to High-Resolution Mass Spectrometry (RP-LC-UV-MS) Analysis of Anthocyanins and Derived Pigments in Red Wine.

Willemse CM, Stander MA, Vestner J, Tredoux AG, de Villiers A.

Anal Chem. 2015 Dec 15;87(24):12006-15. doi: 10.1021/acs.analchem.5b03615. Epub 2015 Nov 23.


Did HealthKick, a randomised controlled trial primary school nutrition intervention improve dietary quality of children in low-income settings in South Africa?

Steyn NP, de Villiers A, Gwebushe N, Draper CE, Hill J, de Waal M, Dalais L, Abrahams Z, Lombard C, Lambert EV.

BMC Public Health. 2015 Sep 23;15:948. doi: 10.1186/s12889-015-2282-4.


Implementation of the HealthKick intervention in primary schools in low-income settings in the Western Cape Province, South Africa: a process evaluation.

de Villiers A, Steyn NP, Draper CE, Hill J, Dalais L, Fourie J, Lombard C, Barkhuizen G, Lambert EV.

BMC Public Health. 2015 Aug 22;15:818. doi: 10.1186/s12889-015-2157-8.


The SAM domain of ANKS6 has different interacting partners and mutations can induce different cystic phenotypes.

Bakey Z, Bihoreau MT, Piedagnel R, Delestré L, Arnould C, de Villiers Ad, Devuyst O, Hoffmann S, Ronco P, Gauguier D, Lelongt B.

Kidney Int. 2015 Aug;88(2):299-310. doi: 10.1038/ki.2015.122. Epub 2015 Jun 3.


Health status of primary school educators in low socio-economic areas in South Africa.

Senekal M, Seme Z, de Villiers A, Steyn NP.

BMC Public Health. 2015 Feb 25;15:186. doi: 10.1186/s12889-015-1531-x.


Optimization of a high-resolution radical scavenging assay coupled on-line to reversed-phase liquid chromatography for antioxidant detection in complex natural extracts.

De Smet S, Miserez B, Rambla Alegre M, Talha Yapa M, de Villiers A, Sandra P, Lynen F.

J Sep Sci. 2015 Mar;38(5):724-31. doi: 10.1002/jssc.201401222. Epub 2015 Jan 27.


Results from South Africa's 2014 Report Card on Physical Activity for Children and Youth.

Draper C, Basset S, de Villiers A, Lambert EV; HAKSA Writing Group.

J Phys Act Health. 2014 May;11 Suppl 1:S98-104. doi: 10.1123/jpah.2014-0185.


Chemometric analysis of chromatographic fingerprints shows potential of Cyclopia maculata (Andrews) Kies for production of standardized extracts with high xanthone content.

Schulze AE, de Beer D, de Villiers A, Manley M, Joubert E.

J Agric Food Chem. 2014 Oct 29;62(43):10542-51. doi: 10.1021/jf5028735. Epub 2014 Oct 20.


Modeling of the total antioxidant capacity of rooibos (Aspalathus linearis) tea infusions from chromatographic fingerprints and identification of potential antioxidant markers.

Orzel J, Daszykowski M, Kazura M, de Beer D, Joubert E, Schulze AE, Beelders T, de Villiers A, Malherbe CJ, Walczak B.

J Chromatogr A. 2014 Oct 31;1366:101-9. doi: 10.1016/j.chroma.2014.09.030. Epub 2014 Sep 22.


Comprehensive two-dimensional liquid chromatographic analysis of anthocyanins.

Willemse CM, Stander MA, Tredoux AG, de Villiers A.

J Chromatogr A. 2014 Sep 12;1359:189-201. doi: 10.1016/j.chroma.2014.07.044. Epub 2014 Jul 22.


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