Research Topics
| R H WaringSummaryAffiliation: University of Birmingham Country: UK Publications
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Publications
Xenobiotic sulphation and its variability during inflammation: a factor in adverse drug reactions?R H Waring
Centre for Toxicology, School of Biosciences, University of Birmingham, Birmingham B15 2TT, UK
Curr Drug Metab 14:361-5. 2013..Being ill may, therefore, in itself make drug metabolism unpredictable...
Biomarkers of endocrine disruption: cluster analysis of effects of plasticisers on Phase 1 and Phase 2 metabolism of steroidsR H Waring
School of Biosciences, University of Birmingham, Birmingham, UK
Int J Androl 35:415-23. 2012....
Phytoestrogens and xenoestrogens: the contribution of diet and environment to endocrine disruptionR H Waring
School of Biosciences, University of Birmingham, Birmingham, United Kingdom
J Steroid Biochem Mol Biol 108:213-20. 2008..Endocrine disrupting effects in man may be multifactorial when components from both the diet and the environment act at the same point in steroid metabolism...
Do dietary phytoestrogens influence susceptibility to hormone-dependent cancer by disrupting the metabolism of endogenous oestrogens?C J Kirk
School of Biosciences, University of Birmingham, Edgbaston, Birmingham B15 2TT, U K
Biochem Soc Trans 29:209-16. 2001..Hence the inhibition of sulphotransferases by dietary phytoestrogens may have complex effects upon human susceptibility to breast cancer...
Phytoestrogens are potent inhibitors of estrogen sulfation: implications for breast cancer risk and treatmentR M Harris
School of Biosciences and Medical School, University of Birmingham, Edgbaston, Birmingham B15 2TT, United Kingdom
J Clin Endocrinol Metab 89:1779-87. 2004..Hence, dietary flavonoids may be able to influence the bioavailability of endogenous estrogens, and disrupt endocrine balance, by increasing the ratio of active estrogens to inactive estrogen sulfates in human tissues...
Cysteine dioxygenase: regional localisation of protein and mRNA in rat brainR B Parsons
Department of Medicine, University of Birmingham, Queen Elizabeth Hospital, Edgbaston, Birmingham, United Kingdom
J Neurosci Res 65:78-84. 2001..CDO expression in the brain may have several possibilities functions, the most likely being the prevention of free radical production by the autoxidation of cysteine and dopamine...
Effects of culture with TNF-alpha, TGF-beta and insulin on sulphotransferase (SULT 1A1 and 1A3) activity in human colon and neuronal cell linesE Davies
School of Biosciences, University of Birmingham, Birmingham B15 2TT, UK
Toxicol In Vitro 18:749-54. 2004....
Detection of endocrine disruptors - from simple assays to whole genome scanningE Sung
School of Biosciences, University of Birmingham, Birmingham, UK
Int J Androl 35:407-14. 2012..The significance of differential expressed genes was assessed based on gene ontology and pathways analyses using DAVID and GenMaPP programs. The results illustrated the very wide-ranging effects of these chemicals across the genome...
Wide-ranging genomic effects of plasticisers and related compoundsN Turan
Department of Medicine, Division of Medical Sciences, The Medical School, University of Birmingham, UK
Curr Drug Metab 9:285-303. 2008..CONCLUSIONS: These plasticisers affected the steady-state mRNA levels of many human genes. Exposure to these compounds over many years has the potential to influence human health...
Hepatic localisation of rat cysteine dioxygenaseR B Parsons
School of Biochemistry, University of Birmingham, Queen Elizabeth Hospital, Edgbaston, UK
J Hepatol 29:595-602. 1998..CDO abnormality has been implicated in a number of neurological and non-neurological diseases, with CDO deficiency possibly leading to excitotoxic damage to the brain and impaired Phase II metabolism in the liver...
Expression of cysteine dioxygenase (EC 1.13.11.20) and sulfite oxidase in the human lung: a potential role for sulfate production in the protection from airborne xenobioticaJ Millard
School of Biosciences, University of Birmingham, Edgbaston, Birmingham B15 2TT, UK
Mol Pathol 56:270-4. 2003....
Sulfotransferase inhibition: potential impact of diet and environmental chemicals on steroid metabolism and drug detoxificationR M Harris
School of Biosciences, University of Birmingham, Birmingham, UK
Curr Drug Metab 9:269-75. 2008....
The effect of plasticisers on "sulphate supply" enzymesN Turan
School of Biosciences, University of Birmingham, UK
Mol Cell Endocrinol 244:15-9. 2005..005-0.5 microM octylphenol, bis (2-ethylhexyl) phthalate and DIP treatment. Endocrine disrupting effects of some plasticisers may be a consequence of modulation of expression of enzymes supplying PAPS for hormone sulphation...
The aetiology of idiopathic Parkinson's diseaseD B Ramsden
Department of Medicine, Division of Medical Science, University of Birmingham, Queen Elizabeth Hospital, Birmingham B15 2TH, UK
Mol Pathol 54:369-80. 2001....
Renal localisation of rat cysteine dioxygenaseR B Parsons
Department of Medicine, Queen Elizabeth Hospital, University of Birmingham, Edgbaston, Birmingham, UK
Nephron 88:340-6. 2001..In order to address this, this report demonstrates the expression of CDO in the kidney...
In vitro effect of the cysteine metabolites homocysteic acid, homocysteine and cysteic acid upon human neuronal cell linesR B Parsons
School of Biochemistry, University of Birmingham, Edgbaston, UK
Neurotoxicology 19:599-603. 1998..HCYS is selectively toxic to medulloblastoma cells; this may explain why high HCYS levels result in neural tube defects in prenatal humans, where the same cell-type is involved...
The effects of flavonoids on human phenolsulphotransferases: potential in drug metabolism and chemopreventionR A Ghazali
School of Biochemistry, University of Birmingham, Edgbaston, United Kingdom
Life Sci 65:1625-32. 1999..These observations suggest the potential for clinically important pharmacological and toxicological interactions by flavonoids...
Non-genomic effects of endocrine disrupters: inhibition of estrogen sulfotransferase by phenols and chlorinated phenolsR M Harris
School of Biosciences, The University of Birmingham, Edgbaston, UK
Mol Cell Endocrinol 244:72-4. 2005..Our results demonstrate a potential non-genomic mechanism of action for these compounds and suggest that, where viable alternatives exist, both phenols substituted in the 2-position and their metabolic precursors should be avoided...
Degradation to sulphate of S-methyl-L-cysteine sulphoxide and S-carboxymethyl-L-cysteine sulphoxide in manR H Waring
School of Biosciences, University of Birmingham, Birmingham, UK
Drug Metabol Drug Interact 19:241-55. 2003..Subtle differences were noted in the pattern of radioactive sulphate excretion following administration of the two cysteine-sulphoxide compounds, suggesting that their sulphur-containing moieties may enter different catabolic routes...
Cysteine dioxygenase: modulation of expression in human cell lines by cytokines and control of sulphate productionL J Wilkinson
School of Biosciences, University of Birmingham, Birmingham B15 2TT, UK
Toxicol In Vitro 16:481-3. 2002..Cytokine release may therefore modulate sulphate production and hence regulate formation of sulphated biocomponents...
Sulfation of "estrogenic" alkylphenols and 17beta-estradiol by human platelet phenol sulfotransferasesR M Harris
School of Biosciences, The University of Birmingham, Edgbaston, Birmingham B15 2TT, United Kingdom
J Biol Chem 275:159-66. 2000..We conclude that by acting either as substrates or inhibitors of SULT1A1/2, alkylphenols may influence the sulfation, and hence the excretion, of estrogens and other phenol sulfotransferase substrates in humans...
Endocrine disrupters--a threat to women's health?R H Waring
School of Biosciences, University of Birmingham, Edgbaston, Birmingham, UK
Maturitas 68:111-5. 2011..However, despite many years of effort, the effects on human health of long-term environmental exposure to EDs, whether singly or as mixtures, remain unknown...
Cysteine dioxygenase: regional expression of activity in rat brainR B Parsons
Department of Medicine, University of Birmingham, UK
Neurosci Lett 248:101-4. 1998..Protein expression appeared to correlate with activity expression when levels before and after induction were compared. This non-uniformity of expression may reflect different physiological functions of CDO in these areas...
Measurement of exogenous carbohydrate oxidation: a comparison of [U-14C]glucose and [U-13C]glucose tracersL Moseley
Human Performance Laboratory, School of Sport and Exercise Sciences, The Univ. of Birmingham, Edgbaston, Birmingham, B15 2TT, UK
Am J Physiol Endocrinol Metab 289:E206-11. 2005..C. Kalhan, S. M. Savin, and P. A. Adam. J Lab Clin Med89: 285-294, 1977). Therefore, the explanation for the discrepancy in calculated CHO(EXO) remains to be fully understood...
Endocrine disrupters: a human risk?R H Waring
School of Biosciences, University of Birmingham, UK
Mol Cell Endocrinol 244:2-9. 2005..This may be of long-term concern since traces of EDs such as plasticisers, brominated fire retardants, sunscreen agents and cosmetic ingredients are widely distributed in the environment and in human biofluids...
Determination of glutathione S-transferase mu and theta polymorphisms in neurological diseaseM C Stroombergen
Department of Biochemistry, University of Birmingham, UK
Hum Exp Toxicol 18:141-5. 1999..Furthermore, subjects with a deletion of the GSTT1 gene were more susceptible to AD...
Reactive oxygen species and oxidative DNA damage mediate the cytotoxicity of tungsten-nickel-cobalt alloys in vitroR M Harris
School of Biosciences, University of Birmingham, Edgbaston, Birmingham B15 2TT, UK
Toxicol Appl Pharmacol 250:19-28. 2011..By combining these in vitro data we offer a mechanistic explanation of the effect of this alloy in vivo and show that in vitro tests are a viable alternative for assessing new alloys in the future...
Development of an in vitro model for cysteine dioxygenase expression in the brainS Qusti
School of Biosciences, University of Birmingham, Edgbaston, UK
Cell Biol Toxicol 16:243-55. 2000..The characterization of an in vitro model for CDO expression provides a useful tool for the investigation of this important enzyme, which may have an etiological role in the pathogenesis of Parkinson's disease...
Diethylstilboestrol--a long-term legacyR M Harris
School of Biosciences, University of Birmingham, Edgbaston, Birmingham B15 2TT, UK
Maturitas 72:108-12. 2012..It has been suggested that, like other endocrine disrupters, DES may have acted as an obesogen in the human population...
Environmental impacts on enzymes involved in drug and steroid metabolismR H Waring
Curr Drug Metab 9:267-8. 2008
The effect of cysteine analogues on the excretion of urinary sulphate in the rat following cysteine administrationE S Roopnarinsingh
Section of Biological Chemistry, Division of Biomedical Sciences, Faculty of Medicine, Imperial College London, UK
Drug Metabol Drug Interact 20:1-10. 2004..It is not known where, within the complex sequence of events surrounding the degradation of cysteine to sulphate, that D-penicillamine or S-carboxymethyl-L-cysteine may interact...
A direct correlation between nicotinamide N-methyltransferase activity and protein levels in human liver cytosolM L Smith
Department of Biochemistry, University of Birmingham, Edgbaston, Birmingham B15 2TT, UK
Biochim Biophys Acta 1442:238-44. 1998..Thus phenotypic differences in the general population are due to differences in steady-state mRNA levels and not because of a polymorphism in the coding region of the NNMT gene...
Carboxanilide persistence in wildlife: excretion and retention in a rat modelS C Mitchell
Section of Biological Chemistry, Division of Biomedical Sciences, Faculty of Medicine, Imperial College London, Sir Alexander Fleming Building, South Kensington, London SW7 2AZ, United Kingdom
Bull Environ Contam Toxicol 72:686-91. 2004
