Stephen Barton

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Posttraumatic growth (PTG) research is an emerging area of empirical study, especially within the field of clinical health psychology. Much of the research in this area has thus far focused on determining the correlates and predictors of PTG. This systematic review aimed to evaluate the association between posttraumatic growth and dispositional optimism,(More)
AIM OF THE STUDY Pregnane glycosides are potent cytotoxic agents which may represent new leads in the development of anti-tumour drugs, particularly in the treatment of breast cancer, because of the structural similarity to estrogenic agonists. Caralluma species are natural sources of a wide variety of pregnane glycosides. The aim of the study was to(More)
An effective, specific and accurate method is presented for the quantification of 13 markers of anthropogenic contaminants in water using solid phase extraction (SPE) followed by high performance liquid chromatography (HPLC) tandem mass spectrometry (MS/MS). Validation was conducted according to the International Conference on Harmonisation (ICH)(More)
Fagonia indica is a small spiny shrub of great ethnopharmacological importance in folk medicine. The aqueous decoction of aerial parts is a popular remedy against various skin lesions, including cancer. We used a biological activity-guided fractionation approach to isolate the most potent fraction of the crude extract on three cancer cell lines: MCF-7(More)
Low-dose acute tryptophan depletion (LD-ATD), while having no effect on mood, has been shown to reduce specificity of autobiographical memory in patients who have recovered from a depressive episode. This study aimed to explore if reduced specificity of autobiographical memory with LD-ATD is common to other groups of individuals at risk of depression,(More)
BACKGROUND A gas chromatography mass spectrometry (GCMS) method for the determination of diclofenac in human plasma has been developed and validated. RESULTS This method utilizes hexane which is a relatively less toxic extraction solvent compared to heptane and benzene. In addition, phosphoric acid and acetone were added to the samples as deproteination(More)
The spatial distribution of pharmaceuticals, personal care products (PPCPs) and other emerging contaminants (ECs) such as plasticisers, perflourinated compounds (PFCs) and illicit drug metabolites in water and bound to suspended particulate material (SPM) is not well-understood. Here, we quantify levels of thirteen selected contaminants in water (n=88) and(More)