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Start Date May Predict Attrition 6 Months Into A 12mth Dietary Intervention Weight Loss Trial, Jane O'Shea, Linda Tapsell, Marijka Batterham, Karen Charlton, Yasmine Probst, Rebecca Thorne, Qingsheng Zhang, Holley Jones Aug 2013

Start Date May Predict Attrition 6 Months Into A 12mth Dietary Intervention Weight Loss Trial, Jane O'Shea, Linda Tapsell, Marijka Batterham, Karen Charlton, Yasmine Probst, Rebecca Thorne, Qingsheng Zhang, Holley Jones

Qingsheng Zhang

Participant recruitment is a difficult and time consuming aspect of clinical trials, often resulting in delays and budget overruns. Having reached recruitment targets the next challenge is participant retention. Some weight-loss studies have attrition rates around 60% which may introduce bias in the results. It may be possible to reduce attrition rates if known predictors can be found but to date few studies produced consistent results. The aim of this exploratory study was to determine whether start date could be a predictor of attrition for participants involved in the SMART weight loss clinical trial (ACTRN12608000425392). Recruitment for the trial occurred …


Start Date May Predict Attrition 6 Months Into A 12mth Dietary Intervention Weight Loss Trial, Jane O'Shea, Linda Tapsell, Marijka Batterham, Karen Charlton, Yasmine Probst, Rebecca Thorne, Qingsheng Zhang, Holley Jones Apr 2013

Start Date May Predict Attrition 6 Months Into A 12mth Dietary Intervention Weight Loss Trial, Jane O'Shea, Linda Tapsell, Marijka Batterham, Karen Charlton, Yasmine Probst, Rebecca Thorne, Qingsheng Zhang, Holley Jones

Karen E. Charlton

Participant recruitment is a difficult and time consuming aspect of clinical trials, often resulting in delays and budget overruns. Having reached recruitment targets the next challenge is participant retention. Some weight-loss studies have attrition rates around 60% which may introduce bias in the results. It may be possible to reduce attrition rates if known predictors can be found but to date few studies produced consistent results. The aim of this exploratory study was to determine whether start date could be a predictor of attrition for participants involved in the SMART weight loss clinical trial (ACTRN12608000425392). Recruitment for the trial occurred …


Associations Between Baseline Erythrocyte N-3 Polyunsaturated Fatty Acids And Weight Indices In Volunteers For A Weight Loss Dietary Intervention, Linda Tapsell, J O'Shea, M Batterham, K Charlton, E Warensjo, R Thorne, K Zhang Apr 2013

Associations Between Baseline Erythrocyte N-3 Polyunsaturated Fatty Acids And Weight Indices In Volunteers For A Weight Loss Dietary Intervention, Linda Tapsell, J O'Shea, M Batterham, K Charlton, E Warensjo, R Thorne, K Zhang

Karen E. Charlton

No abstract provided.


Effects Of Diets High In Whey, Soy, Red Meat And Milk Protein On Body Weight Maintenance In Diet-Induced Obesity In Mice, Xu-Feng Huang, Y Liu, Gita Rahardjo, Peter Mclennan, Linda Tapsell, William Buttemer Sep 2012

Effects Of Diets High In Whey, Soy, Red Meat And Milk Protein On Body Weight Maintenance In Diet-Induced Obesity In Mice, Xu-Feng Huang, Y Liu, Gita Rahardjo, Peter Mclennan, Linda Tapsell, William Buttemer

Xu-Feng Huang

This study examined the effects of different food sources of protein on energy intake, body weight maintenance, and on the responses of plasma leptin, insulin and adiponectin in chronic high-fat diet-induced obese mice. Obesity was induced in 47 mice with a high-fat diet for 20 weeks. They were divided into five diet groups to test the effects of a higher protein proportion (30% energy), achieved at the expense of carbohydrate. For the next eight weeks, four of the groups were fed diets of chow formulated with whey, soy, red meat or milk while the control group continued on their high-fat …


Alterations To Melanocortinergic, Gabaergic And Cannabinoid Neurotransmission Associated With Olanzapine-Induced Weight Gain, Katrina Weston-Green, Xu-Feng Huang, Chao Deng Sep 2012

Alterations To Melanocortinergic, Gabaergic And Cannabinoid Neurotransmission Associated With Olanzapine-Induced Weight Gain, Katrina Weston-Green, Xu-Feng Huang, Chao Deng

Xu-Feng Huang

Background/Aim: Second generation antipsychotics (SGAs) are used to treat schizophrenia but can cause serious metabolic side-effects, such as obesity and diabetes. This study examined the effects of low to high doses of olanzapine on appetite/ metabolic regulatory signals in the hypothalamus and brainstem to elucidate the mechanisms underlying olanzapineinduced obesity. Methodology/Results: Levels of pro-opiomelanocortin (POMC), neuropeptide Y (NPY) and glutamic acid decarboxylase (GAD65, enzyme for GABA synthesis) mRNA expression, and cannabinoid CB1 receptor (CB1R) binding density (using [3H]SR- 141716A) were examined in the arcuate nucleus (Arc) and dorsal vagal complex (DVC) of female Sprague Dawley rats following 0.25, 0.5, 1.0 …