List of works - Michael Lever

A high performance liquid chromatographic method for the measurement of total carnitine in human plasma and urine

scientific article

A nuclear-magnetic-resonance-based assay for betaine-homocysteine methyltransferase activity

scientific article

Abnormal glycine betaine content of the blood and urine of diabetic and renal patients

scientific article published on 01 October 1994

Aminoacid metabolism in plants : the biosynthesis of [beta]-cyanoalanine and asparagine in lupins

1970 doctoral thesis by Michael Lever at Massey University

An abnormal urinary excretion of glycine betaine may persist for years

scientific article published on 28 March 2007

Assessment of antimicrobial activity of hydrophilic betaines in osmotically stressed bacteria.

scientific article published on January 2003

Betaine analogues alter homocysteine metabolism in rats

scientific article published in May 2004

Betaine and Trimethylamine-N-Oxide as Predictors of Cardiovascular Outcomes Show Different Patterns in Diabetes Mellitus: An Observational Study

scientific article

Betaine and secondary events in an acute coronary syndrome cohort

scientific article

Betaine excretion correlates with plasma homocysteine when plasma lipids are elevated

scientific article published on 07 November 2011

Betaine supplementation and the metabolic syndrome ⬇️

scientific article published on March 23, 2011

Betaine supplementation decreases post-methionine hyperhomocysteinemia in chronic renal failure

scientific article published in March 2002

Betaines and urinary tract infections

scientific article published on 01 January 1996

Biological variation of coenzyme Q10.

scientific article

Coenzyme Q10: an independent predictor of mortality in chronic heart failure

scientific article published in October 2008

Coenzyme Q10: is there a clinical role and a case for measurement?

scientific article published on May 2008

Coenzyme Q10; an adjunctive therapy for congestive heart failure?

scientific article published on 30 October 2009

Competitive accumulation of betaines by Escherichia coli K-12 and derivative strains lacking betaine porters.

scientific article

Concentration response to the coenzyme Q10 supplement Q-Gel in human volunteers

scientific article published on 26 June 2007

Dietary and supplementary betaine: acute effects on plasma betaine and homocysteine concentrations under standard and postmethionine load conditions in healthy male subjects ⬇️

scientific article published on 01 March 2008

Dietary and supplementary betaine: effects on betaine and homocysteine concentrations in males.

scientific article published on 5 April 2009

Dietary betaine and inflammation.

scientific article

Dimethylglycine accumulates in uremia and predicts elevated plasma homocysteine concentrations ⬇️

scientific article published on 27 December 2004

Dimethylglycine supplementation does not affect plasma homocysteine concentrations in pre-dialysis chronic renal failure patients.

scientific article published in November 2004

Dimethylthetin treatment causes diffuse alveolar lung damage: a pilot study in a sheep model of Continuous Ambulatory Peritoneal Dialysis (CAPD)

scientific article published on 18 December 2006

Effects of orange juice and proline betaine on glycine betaine and homocysteine in healthy male subjects.

scientific article published on 4 December 2007

Elevated glycine betaine excretion in diabetes mellitus patients is associated with proximal tubular dysfunction and hyperglycemia

scientific article

Erratum to: Plasma betaine concentrations correlate with plasma cortisol but not with C-reactive protein in an elderly population

scientific article published on 12 September 2017

Extreme urinary betaine losses in type 2 diabetes combined with bezafibrate treatment are associated with losses of dimethylglycine and choline but not with increased losses of other osmolytes

scientific article published on 01 October 2014

Fenofibrate causes elevation of betaine excretion but not excretion of other osmolytes by healthy adults

scientific article published on 16 April 2014

Fibrates may cause an abnormal urinary betaine loss which is associated with elevations in plasma homocysteine

scientific article published in October 2009

Fibrates plus betaine: a winning combination?

scientific article published on October 15, 2010

Fluorescence is less sensitive than ultraviolet or electrochemical detection for measurement of coenzyme Q10 in plasma

scientific article published on 01 August 2005

Genetic polymorphism rs6922269 in the MTHFD1L gene is associated with survival and baseline active vitamin B12 levels in post-acute coronary syndromes patients

scientific article

Glycine betaine and proline betaine in human blood and urine

scientific article published on August 1994

Glycine betaine excretion is not directly linked to plasma glucose concentrations in hyperglycaemia.

scientific article published in June 2001

Homocysteine, glycine betaine, and N,N-dimethylglycine in patients attending a lipid clinic.

scientific article published in January 2005

Inhibitors of bacterial growth in urine: what is the role of betaines?

scientific article published in May 1999

Inter- and intra-individual variations in normal urinary glycine betaine excretion

scientific article published on 13 January 2007

Is N,N-dimethylglycine N-oxide a choline and betaine metabolite?

scientific article published on 01 June 2017

Is the ability of urinary tract pathogens to accumulate glycine betaine a factor in the virulence of pathogenic strains?

scientific article published on 01 October 1996

Measurement of marine osmolytes in mammalian serum by liquid chromatography-tandem mass spectrometry

scientific article published on 19 September 2011

Measurement of plasma free choline by high performance liquid chromatography with fluorescence detection following derivatization with 1-naphthyl isocyanate.

scientific article

N-3 polyunsaturated fatty acids and statins in heart failure

scholarly article

Natural and synthetic betaines counter the effects of high NaCl and urea concentrations.

scientific article

Near infra-red spectra of urea with glycine betaine or trimethylamine N-oxide are additive

scientific article published in October 2001

Organic osmolytes in human and other mammalian kidneys

scientific article published on 01 February 1993

Osmoprotective activity, urea protection, and accumulation of hydrophilic betaines in Escherichia coli and Staphylococcus aureus

scientific article published on 01 April 1999

Osmoprotective properties and accumulation of betaine analogues by Staphylococcus aureus ⬇️

scientific article published on 01 March 1998

Plasma and urine betaine and dimethylglycine variation in healthy young male subjects

scientific article published on 13 February 2009

Plasma betaine concentrations correlate with plasma cortisol but not with C-reactive protein in an elderly population

scientific article published on 18 March 2012

Plasma lipids and betaine are related in an acute coronary syndrome cohort

scientific article

Plasma total coenzyme Q9 (CoQ9) in the New Zealand population: reference interval and biological variation

scientific article published on 01 April 2007

Same-day batch measurement of glycine betaine, carnitine, and other betaines in biological material

scientific article published on 01 August 1992

Separation of cationic aracyl derivatives of betaines and related compounds

scientific article published on 27 December 2005

Sex differences in the control of plasma concentrations and urinary excretion of glycine betaine in patients attending a lipid disorders clinic

scientific article published on 17 July 2007

Short and long-term variation of plasma glycine betaine concentrations in humans

scientific article published in March 2004

The bioavailability of coenzyme Q10 supplements available in New Zealand differs markedly

scientific article published on 08 October 2004

The clinical significance of betaine, an osmolyte with a key role in methyl group metabolism

scientific article published on 25 March 2010

The contrasting relationships between betaine and homocysteine in two clinical cohorts are associated with plasma lipids and drug treatments

scientific article

Trimethylaminuria: causes and diagnosis of a socially distressing condition

scientific article

Validation of (1)H NMR spectroscopy as an analytical tool for methylamine metabolites in urine.

scientific article

Variability of plasma and urine betaine in diabetes mellitus and its relationship to methionine load test responses: an observational study.

scientific article

Variation of betaine, N,N-dimethylglycine, choline, glycerophosphorylcholine, taurine and trimethylamine-N-oxide in the plasma and urine of overweight people with type 2 diabetes over a two-year period.

scientific article

List of works by Michael Lever

A high performance liquid chromatographic method for the measurement of total carnitine in human plasma and urine

A nuclear-magnetic-resonance-based assay for betaine-homocysteine methyltransferase activity

Abnormal glycine betaine content of the blood and urine of diabetic and renal patients

Aminoacid metabolism in plants : the biosynthesis of [beta]-cyanoalanine and asparagine in lupins

An abnormal urinary excretion of glycine betaine may persist for years

Assessment of antimicrobial activity of hydrophilic betaines in osmotically stressed bacteria.

Betaine analogues alter homocysteine metabolism in rats

Betaine and Trimethylamine-N-Oxide as Predictors of Cardiovascular Outcomes Show Different Patterns in Diabetes Mellitus: An Observational Study

Betaine and secondary events in an acute coronary syndrome cohort

Betaine excretion correlates with plasma homocysteine when plasma lipids are elevated

Betaine supplementation and the metabolic syndrome ⬇️

Betaine supplementation decreases post-methionine hyperhomocysteinemia in chronic renal failure

Betaines and urinary tract infections

Biological variation of coenzyme Q10.

Coenzyme Q10: an independent predictor of mortality in chronic heart failure

Coenzyme Q10: is there a clinical role and a case for measurement?

Coenzyme Q10; an adjunctive therapy for congestive heart failure?

Competitive accumulation of betaines by Escherichia coli K-12 and derivative strains lacking betaine porters.

Concentration response to the coenzyme Q10 supplement Q-Gel in human volunteers

Dietary and supplementary betaine: acute effects on plasma betaine and homocysteine concentrations under standard and postmethionine load conditions in healthy male subjects ⬇️

Dietary and supplementary betaine: effects on betaine and homocysteine concentrations in males.

Dietary betaine and inflammation.

Dimethylglycine accumulates in uremia and predicts elevated plasma homocysteine concentrations ⬇️

Dimethylglycine supplementation does not affect plasma homocysteine concentrations in pre-dialysis chronic renal failure patients.

Dimethylthetin treatment causes diffuse alveolar lung damage: a pilot study in a sheep model of Continuous Ambulatory Peritoneal Dialysis (CAPD)

Effects of orange juice and proline betaine on glycine betaine and homocysteine in healthy male subjects.

Elevated glycine betaine excretion in diabetes mellitus patients is associated with proximal tubular dysfunction and hyperglycemia

Erratum to: Plasma betaine concentrations correlate with plasma cortisol but not with C-reactive protein in an elderly population

Extreme urinary betaine losses in type 2 diabetes combined with bezafibrate treatment are associated with losses of dimethylglycine and choline but not with increased losses of other osmolytes

Fenofibrate causes elevation of betaine excretion but not excretion of other osmolytes by healthy adults

Fibrates may cause an abnormal urinary betaine loss which is associated with elevations in plasma homocysteine

Fibrates plus betaine: a winning combination?

Fluorescence is less sensitive than ultraviolet or electrochemical detection for measurement of coenzyme Q10 in plasma

Genetic polymorphism rs6922269 in the MTHFD1L gene is associated with survival and baseline active vitamin B12 levels in post-acute coronary syndromes patients

Glycine betaine and proline betaine in human blood and urine

Glycine betaine excretion is not directly linked to plasma glucose concentrations in hyperglycaemia.

Homocysteine, glycine betaine, and N,N-dimethylglycine in patients attending a lipid clinic.

Inhibitors of bacterial growth in urine: what is the role of betaines?

Inter- and intra-individual variations in normal urinary glycine betaine excretion

Is N,N-dimethylglycine N-oxide a choline and betaine metabolite?

Is the ability of urinary tract pathogens to accumulate glycine betaine a factor in the virulence of pathogenic strains?

Measurement of marine osmolytes in mammalian serum by liquid chromatography-tandem mass spectrometry

Measurement of plasma free choline by high performance liquid chromatography with fluorescence detection following derivatization with 1-naphthyl isocyanate.

N-3 polyunsaturated fatty acids and statins in heart failure

Natural and synthetic betaines counter the effects of high NaCl and urea concentrations.

Near infra-red spectra of urea with glycine betaine or trimethylamine N-oxide are additive

Organic osmolytes in human and other mammalian kidneys

Osmoprotective activity, urea protection, and accumulation of hydrophilic betaines in Escherichia coli and Staphylococcus aureus

Osmoprotective properties and accumulation of betaine analogues by Staphylococcus aureus ⬇️

Plasma and urine betaine and dimethylglycine variation in healthy young male subjects

Plasma betaine concentrations correlate with plasma cortisol but not with C-reactive protein in an elderly population

Plasma lipids and betaine are related in an acute coronary syndrome cohort

Plasma total coenzyme Q9 (CoQ9) in the New Zealand population: reference interval and biological variation

Same-day batch measurement of glycine betaine, carnitine, and other betaines in biological material

Separation of cationic aracyl derivatives of betaines and related compounds

Sex differences in the control of plasma concentrations and urinary excretion of glycine betaine in patients attending a lipid disorders clinic

Short and long-term variation of plasma glycine betaine concentrations in humans

The bioavailability of coenzyme Q10 supplements available in New Zealand differs markedly

The clinical significance of betaine, an osmolyte with a key role in methyl group metabolism

The contrasting relationships between betaine and homocysteine in two clinical cohorts are associated with plasma lipids and drug treatments

Trimethylaminuria: causes and diagnosis of a socially distressing condition

Validation of (1)H NMR spectroscopy as an analytical tool for methylamine metabolites in urine.

Variability of plasma and urine betaine in diabetes mellitus and its relationship to methionine load test responses: an observational study.

Variation of betaine, N,N-dimethylglycine, choline, glycerophosphorylcholine, taurine and trimethylamine-N-oxide in the plasma and urine of overweight people with type 2 diabetes over a two-year period.