Liz Kathryn Wells

Mrs. Liz Kathryn Wells

orcid

Research Focus & Metrics

Academic Career Length

12Years (2015-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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1 December 2018 in The American Journal of Clinical Nutrition
Verified
Journal Article
Closed access
JMJanice Miller
Janice Miller
LWLiz Kathryn Wells
Liz Kathryn Wells
UNUgochinyere Nwulu
Ugochinyere Nwulu
DCDavid Currow
David Currow
MJMiriam J Johnson
Miriam J Johnson
RSRichard J E Skipworth
Richard J E Skipworth
There is great overlap between the presentation of cachexia, sarcopenia, and malnutrition. Distinguishing between these conditions would allow for better targeted treatment for patients. The aim was to systematically review validated screening tools for cachexia, sarcopenia, and malnutrition in adults and, if a combined tool is absent, make suggestions for the generation of a novel screening tool. A systematic search was performed in Ovid Medline, EMBASE, CINAHL, and Web of Science. Two reviewers performed data extraction independently. Each tool was judged for validity against a reference method. Psychometric evaluation was performed as was appraisal of the tools' ability to assess the patient against consensus definitions. Thirty-eight studies described 22 validated screening tools. The Cachexia score (CASCO) was the only validated screening tool for cachexia and performed well against the consensus definition. Two tools assessed sarcopenia [the Short Portable Sarcopenia Measure (SPSM) and the SARC-F (Strength, Assistance with walking, Rise from a chair, Climb stairs, and Falls)] and scored well against the 1998 Baumgartner definition. The SPSM required large amounts of equipment, and the SARC-F had a low sensitivity. Nineteen tools screened for malnutrition. The 3-Minute Nutrition Score performed best, meeting consensus definition criteria (European Society for Clinical Nutrition and Metabolism) and having a sensitivity and specificity of >80%. No tool contained all of the currently accepted components to screen for all 3 conditions. Only 3 tools were validated against cross-sectional imaging, a clinical tool that is gaining wider interest in body-composition analysis. No single validated screening tool can be implemented for the simultaneous assessment of cachexia, sarcopenia, and malnutrition. The development of a tool that encompasses consensus definition criteria and directs clinicians toward the underlying diagnosis would be optimal to target treatment and improve outcomes. We propose that tool should incorporate a stepwise assessment of nutritional status, oral intake, disease status, age, muscle mass and function, and metabolic derangement.

23 January 2018 in Toxins
Verified
Journal Article
Open access
PDF file
MPMaria Papageorgiou
Maria Papageorgiou
LWLiz Kathryn Wells
Liz Kathryn Wells
CWCourtney Williams
Courtney Williams
KWKay White
Kay White
BSBarbara De Santis
Barbara De Santis
Thozhukat  Sathyapalan Thozhukat Sathyapalan
Thozhukat Sathyapalan
Deoxynivalenol (DON), the mycotoxin produced mainly by Fusarium graminearum and found in contaminated cereal-based foodstuff, has been consistently detected in body fluids in adults. Available data in children and adolescents are scarce. This study assessed urinary DON concentrations in children aged 3–9 years (n = 40) and adolescents aged 10–17 years (n = 39) in the UK. Morning urine samples were collected over two consecutive days and analysed for free DON (un-metabolised form), DON-glucuronides (DON-GlcA), deepoxy deoxynivalenol (DOM-1), and total DON (sum of free DON, DON-GlcA, and DOM-1). Total DON was detected in the urine of >95% of children and adolescents on both days. Mean total DON concentrations (ng/mg creatinine) were 41.6 and 21.0 for children and adolescents, respectively. The greatest total DON levels were obtained in female children on both days (214 and 219 ng/mg creatinine on days 1 and 2, respectively). Free DON and DON-GlcA were detected in most urine specimens, whereas DOM-1 was not present in any sample. Estimation of dietary DON exposure suggested that 33–63% of children and 5–46% of adolescents exceeded current guidance regarding the maximum provisional tolerable daily intake (PMTDI) for DON. Although moderate mean urinary DON concentrations were shown, the high detection frequency of urinary DON, the maximum biomarker concentrations, and estimated dietary DON exposure are concerning.

6 September 2023 in Nutrients
Verified
Journal Article
Open access
PDF file
HDHarshal Deshmukh
Harshal Deshmukh
MPMaria Papageorgiou
Maria Papageorgiou
LWLiz Kathryn Wells
Liz Kathryn Wells
SAShahzad Akbar
Shahzad Akbar
TSThomas Strudwick
Thomas Strudwick
Thozhukat  Sathyapalan Thozhukat Sathyapalan
Thozhukat Sathyapalan
We performed an open-label, randomised controlled trial to compare the effects of a very-low-calorie diet (VLCD) vs. moderate energy deficit approach on body weight, body composition, free androgen index (FAI), and metabolic markers in obese women with polycystic ovary syndrome (PCOS). Forty eligible patients were randomly assigned to a VLCD (n = 21) or a conventional energy deficit approach (n = 19) over the same period. After eight weeks, both groups experienced significant weight loss; however, this was greater in the VLCD arm (−10.9% vs. −3.9%, p < 0.0001). There was also a trend towards a reduction in FAI in the VLCD group compared to the energy deficit group (−32.3% vs. −7.7%, p = 0.07). In the VLCD arm, two women (18%) had a biochemical remission of PCOS (FAI < 4); this was not the case for any of the participants in the energy deficit arm. There was a significant within-group increase in the sex-hormone-binding globulin (p = 0.002) and reductions in fasting blood glucose (p = 0.010) and waist to hip ratio (p = 0.04) in the VLCD arm, but not in the energy deficit arm. The VLCD resulted in significantly greater weight reduction and was accompanied by more pronounced improvements in hyperandrogenaemia, body composition, and several metabolic parameters in obese women with PCOS as compared to the energy deficit approach.

1 June 2015 in EFSA Supporting Publications
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Journal Article
Closed access
PDF file
CBCarlo Brera
Carlo Brera
BSBarbara de Santis
Barbara de Santis
FDFrancesca Debegnach
Francesca Debegnach
BMBrunella Miano
Brunella Miano
GMGiorgio Moretti
Giorgio Moretti
TSThozhukat Sathyapalanf
Thozhukat Sathyapalanf

22 June 2017 in Toxins
Verified
Journal Article
Open access
PDF file
LWLiz Kathryn Wells
Liz Kathryn Wells
LHLaura Hardie
Laura Hardie
CWCourtney Williams
Courtney Williams
KWKay White
Kay White
YLYunru Liu
Yunru Liu
Thozhukat  Sathyapalan Thozhukat Sathyapalan
Thozhukat Sathyapalan
Deoxynivalenol (DON) is produced by Fusarium graminearum and is one of the most commonly occurring trichothecenes. Vegetarians are alleged to be a high-risk group for DON exposure due to high intakes of cereals susceptible to the growth of the mycotoxin. This study provides the levels of DON and de-epoxi Deoxynivalenol (DOM-1) in urine analysed by liquid chromatography-mass spectrometry (LC-MS) in UK vegetarians. Over two consecutive days, morning urine samples were collected from 32 vegetarians and 31 UK adult volunteers, and associated food consumption 24 h prior to the sample was recorded. Statistically significant differences between the weight of the UK adults and vegetarians (t = 3.15. df = 61, p ≤ 0.005 two-tailed) were observed. The mean levels of DON in urine for adults on day 1 was 3.05 ng free DON/mg creatinine, and on day 2 was 2.98 ng free DON/mg creatinine. Even though high mean levels were observed, most adults were within the tolerable daily intake. However, for vegetarians, the mean level of urinary DON on day 1 was 6.69 ng free DON/mg creatinine, and on day 2 was 3.42 ng free DON/mg creatinine. These levels equate to up to 32% of vegetarians exceeding recommended tolerable daily intakes (TDI) of exposure (1 µg/kg b.w./day).

25 October 2016 in Toxins
Verified
Journal Article
Open access
PDF file
LWLiz Kathryn Wells
Liz Kathryn Wells
LHLaura Hardie
Laura Hardie
CWCourtney Williams
Courtney Williams
KWKay White
Kay White
YLYunru Liu
Yunru Liu
Thozhukat  Sathyapalan Thozhukat Sathyapalan
Thozhukat Sathyapalan
Deoxynivalenol (DON) is one of the most commonly occurring trichothecenes, produced mainly by Fusarium graminearum. Little is known about the effect of DON exposure or the levels of DON exposure that occur during pregnancy. The project aimed to provide data on levels of total DON and de-epoxi Deoxynivalenol (DOM-1) in pregnant human urine samples analysed by liquid chromatography-mass spectrometry (LC-MS). Morning urine samples were collected over two consecutive days from 42 volunteers and associated food consumption was recorded for the 24 h prior to the sample. Spearman’s rho non-parametric test for correlation was used to assess the data. Levels of DON did not differ significantly between day 1 (mean 29.7 ng/mL urine or 40.1 ng DON/mg creatinine) and day 2 (mean 28.7 ng/mL urine or 38.8 ng DON/mg creatinine ng/mL/day) urine samples. The only significant positive correlation was found between total ng DON/mg creatinine and parity (rho = 0.307, n = 42, p < 0.005 two-tailed) and total ng DON/mg creatinine with baked goods on day 1 (rho = 0.532, n = 42, p < 0.0005 two-tailed). This study provides data on the DON levels in pregnancy in this suburban population and reassurance that those levels are within acceptable limits.