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Raps M, Kleider C, Lehmann L. Quantitative analysis of 34 sex (pro)hormones, conjugates and bioactive oxidation products thereof in human plasma by GC- and LC-MS/MS and systematic investigation of overestimations of analyte concentrations not accounted for by method validation. Steroids 2024; 208:109441. [PMID: 38768743 DOI: 10.1016/j.steroids.2024.109441] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/27/2024] [Revised: 05/14/2024] [Accepted: 05/16/2024] [Indexed: 05/22/2024]
Abstract
When investigating endocrine disorders, it is essential to assess a comprehensive quantitative profile of sex (pro)hormones in plasma including conjugates. Thus, the present study aimed to develop and validate a comprehensive mass spectrometry-based multimethod combining the direct analysis of unconjugated sex (pro)hormones and oxidation products thereof (by GC), as well as their sulfates and glucuronides present in higher concentrations (by LC) with the indirect quantification of glucuronides present in lower concentrations after selective glucuronide hydrolysis (by GC) and its application to plasma derived from ten pre- and postmenopausal women and men each. Even guideline-compliant validation experiments cannot completely reflect overestimation of analyte concentrations due to effects depending on the individual ratio of analytes (i.e. chemical formation of analytes or incomplete removal of interfering analytes). Thus, the extent of processes not accounted for by the calibration strategy were investigated and maximum over- or underestimations of analyte concentrations were assessed for each plasma sample individually. 34 analytes were successfully calibrated, validated (median accuracy 101.1 %, median inter-day precision 8.1 %) and 31 were detected above the detection limit in plasma samples. The sporadic maximum individual over- or underestimation of analyte concentrations amounted to less than 20 %.
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Affiliation(s)
- Miriam Raps
- University of Würzburg, Chair of Food Chemistry, 97074 Würzburg, Germany.
| | - Carolin Kleider
- University of Würzburg, Chair of Food Chemistry, 97074 Würzburg, Germany.
| | - Leane Lehmann
- University of Würzburg, Chair of Food Chemistry, 97074 Würzburg, Germany.
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Thevis M, Kuuranne T, Fedoruk M, Geyer H. Sports drug testing and the athletes' exposome. Drug Test Anal 2021; 13:1814-1821. [PMID: 34694748 DOI: 10.1002/dta.3187] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2021] [Revised: 10/18/2021] [Accepted: 10/18/2021] [Indexed: 12/13/2022]
Abstract
Similar to the general population, elite athletes are exposed to a complex set of environmental factors including chemicals and radiation and also biological and physical stressors, which constitute an exposome that is, unlike for the general population, subjected to specific scrutiny for athletes due to applicable antidoping regulations and associated (frequent) routine doping controls. Hence, investigations into the athlete's exposome and how to distinguish between deliberate drug use and different contamination scenarios has become a central topic of antidoping research, as a delicate balance is to be managed between the vital and continually evolving developments of sensitive analytical techniques on the one hand, and the risk of the athletes' exposome potentially causing adverse analytical findings on the other.
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Affiliation(s)
- Mario Thevis
- Center for Preventive Doping Research - Institute of Biochemistry, German Sport University Cologne, Cologne, Germany.,European Monitoring Center for Emerging Doping Agents, Cologne, Germany
| | - Tiia Kuuranne
- Swiss Laboratory for Doping Analyses, University Center of Legal Medicine, Genève and Lausanne, Centre Hospitalier Universitaire Vaudois and University of Lausanne, Epalinges, Switzerland
| | - Matthew Fedoruk
- United States Anti-Doping Agency (USADA), Colorado Springs, Colorado, USA
| | - Hans Geyer
- Center for Preventive Doping Research - Institute of Biochemistry, German Sport University Cologne, Cologne, Germany.,European Monitoring Center for Emerging Doping Agents, Cologne, Germany
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3
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Diet, Lifestyles, Family History, and Prostate Cancer Incidence in an East Algerian Patient Group. BIOMED RESEARCH INTERNATIONAL 2016; 2016:5730569. [PMID: 27975054 PMCID: PMC5130556 DOI: 10.1155/2016/5730569] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 05/06/2016] [Revised: 09/02/2016] [Accepted: 09/20/2016] [Indexed: 01/31/2023]
Abstract
Prostate cancer (PC) is the fourth most common cancer in men and the sixth leading cause of death in Algeria. To examine the relationship between lifestyle factors, including diet, and family history and PC risk, a case-control study was performed in an eastern Algerian population, comprising 90 patients with histologically confirmed PC and 190 controls. Data collection was carried out through a structured questionnaire and statistical analysis was performed to evaluate the different variables. The data showed that consumption of lamb and beef meat and high intake of animal fat and dairy products increased PC risk. Seven to thirteen vegetables servings per week and fourteen or more servings decreased PC risk by 62% and 96%, respectively. Seven to fourteen fruit servings per week decrease PC risk by 98%. Green tea consumption reduced the risk of PC but the results were statistically borderline. Increased risk was observed for individuals with family history of PC in first and in second degree. A positive strong association was also found for alcohol and smoking intake and a dose-response relationship existed for quantity and history of smoking. This study suggests that dietary habits, lifestyle factors, and family history have influence on the development of PC in Algerian population.
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Fabregat A, Marcos J, Segura J, Ventura R, Pozo OJ. Factors affecting urinary excretion of testosterone metabolites conjugated with cysteine. Drug Test Anal 2015; 8:110-9. [DOI: 10.1002/dta.1801] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2014] [Revised: 03/09/2015] [Accepted: 03/11/2015] [Indexed: 11/08/2022]
Affiliation(s)
- Andreu Fabregat
- Bioanalysis Research Group, IMIM; Hospital del Mar; Doctor Aiguader 88 08003 Barcelona Spain
| | - Josep Marcos
- Bioanalysis Research Group, IMIM; Hospital del Mar; Doctor Aiguader 88 08003 Barcelona Spain
- Department of Experimental and Health Sciencies; Universitat Pompeu Fabra; Doctor Aiguader 88 08003 Barcelona Spain
| | - Jordi Segura
- Bioanalysis Research Group, IMIM; Hospital del Mar; Doctor Aiguader 88 08003 Barcelona Spain
- Department of Experimental and Health Sciencies; Universitat Pompeu Fabra; Doctor Aiguader 88 08003 Barcelona Spain
| | - Rosa Ventura
- Bioanalysis Research Group, IMIM; Hospital del Mar; Doctor Aiguader 88 08003 Barcelona Spain
- Department of Experimental and Health Sciencies; Universitat Pompeu Fabra; Doctor Aiguader 88 08003 Barcelona Spain
| | - Oscar J. Pozo
- Bioanalysis Research Group, IMIM; Hospital del Mar; Doctor Aiguader 88 08003 Barcelona Spain
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Thieme D, Große J, Keller L, Graw M. Urinary concentrations of ethyl glucuronide and ethyl sulfate as thresholds to determine potential ethanol-induced alteration of steroid profiles. Drug Test Anal 2011; 3:851-6. [DOI: 10.1002/dta.396] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- D. Thieme
- Institute of Doping Analysis; Dresden; Germany
| | - J. Große
- Institute of Doping Analysis; Dresden; Germany
| | - L. Keller
- Institute of Legal Medicine; University of Munich; Germany
| | - M. Graw
- Institute of Legal Medicine; University of Munich; Germany
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Rohrmann S, Linseisen J, Key TJ, Jensen MK, Overvad K, Johnsen NF, Tjønneland A, Kaaks R, Bergmann MM, Weikert C, Naska A, Trichopoulou A, Trichopoulos D, Pala V, Sacerdote C, Palli D, Tumino R, Bueno-de-Mesquita HB, Vrieling A, González CA, Larrañaga N, Navarro C, Barricarte A, Quiros JR, Martínez-García C, Hallmans G, Stattin P, Manjer J, Wirfält E, Bingham S, Khaw KT, Egevad L, Ferrari P, Jenab M, Riboli E. Alcohol consumption and the risk for prostate cancer in the European Prospective Investigation into Cancer and Nutrition. Cancer Epidemiol Biomarkers Prev 2008; 17:1282-7. [PMID: 18483352 DOI: 10.1158/1055-9965.epi-07-2888] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Alcohol is a risk factor for several types of cancer. However, the results for prostate cancer have been inconsistent, with most studies showing no association. Within the European Prospective Investigation into Cancer and Nutrition, detailed information were collected from 142,607 male participants on the intake of alcoholic beverages at recruitment (for 100% of the cohort) and over lifetime (for 76% of the cohort) between 1992 and 2000. During a median follow-up of 8.7 years, 2,655 prostate cancer cases were observed. Multivariate Cox proportional hazard models were used to examine the association of alcohol consumption at recruitment and average lifetime alcohol consumption with prostate cancer adjusted for age, center, smoking, height, weight, physical activity, and nonalcohol energy intake. Overall, neither alcohol consumption at baseline nor average lifetime alcohol consumption was associated with the risk for prostate cancer in this cohort of men. Men who consumed >or=60 g alcohol per day had a relative risk of 0.88 [95% confidence interval (95% CI) 0.72-1.08] compared with men with an intake of 0.1-4.9 g/d; the respective relative risk for average lifetime intake was 1.09 (95% CI, 0.86-1.39). For advanced prostate cancer (n = 537), the relative risks for >or=60 and 0.1-4.9 g alcohol per day at baseline were 0.98 (95% CI, 0.66-1.44) and 1.28 (95% CI, 0.79-2-07), respectively, for average lifetime intake. No statistically significant association was observed for alcohol intake from specific alcoholic beverages. Our results indicate no association between the consumption of alcohol and prostate cancer in this cohort of European men.
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Affiliation(s)
- Sabine Rohrmann
- Division of Cancer Epidemiology (C020), Im Neuenheimer Feld 280, 69120 Heidelberg, Germany.
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Rohrmann S, Fallin MD, Page WF, Reed T, Partin AW, Walsh PC, Platz EA. Concordance rates and modifiable risk factors for lower urinary tract symptoms in twins. Epidemiology 2006; 17:419-27. [PMID: 16699472 DOI: 10.1097/01.ede.0000219723.14476.28] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
INTRODUCTION Lower urinary tract symptoms, which are common in older men, are thought to be determined genetically and by modifiable environmental risk factors. We examined the contribution of these 2 etiologic components in a cohort of U.S. twins. METHODS In 1998, a questionnaire that assessed lower urinary tract symptoms, weight, height, alcohol consumption, cigarette smoking, and physical activity was sent out to members of the National Academy of Science-National Research Council Twins Registry. We analyzed 1,723 complete twin pairs with information on lower urinary tract symptoms and zygosity and who did not have a previous diagnosis of prostate cancer. We calculated concordance rates of categories of the International Prostate Symptom Score in monozygotic (MZ) and dizygotic (DZ) twins. Generalized estimating equations were used to calculate the odds ratio of having high-moderate/severe lower urinary tract symptoms. RESULTS Concordance rates were higher in MZ than in DZ twins with concordance rate ratios of 2.2 and 6.9 depending on the specificity of definition of symptoms. Genetic factors contributed 72% to the risk of high-moderate/severe lower urinary tract symptoms. Taking into account correlated individuals, we observed high odds of lower urinary tract symptoms in obese men compared with lean men (odds ratio = 1.91; 95% confidence interval = 1.16-3.15 comparing first versus fourth quartile). Cigarette smoking was not associated with lower urinary tract symptoms, but alcohol consumption was positively associated. Men who were more physically active tended to have lower odds of lower urinary tract symptoms compared with less active men (0.62; 0.36-1.08). CONCLUSION The findings indicate a strong genetic component of lower urinary tract symptoms, but also support previous studies that modifiable environmental risk factors are associated with this condition.
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Affiliation(s)
- Sabine Rohrmann
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD 21205, USA
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Kokavec A, Crowe SF. Effect of Moderate White Wine Consumption on Serum IgA and Plasma Insulin under Fasting Conditions. ANNALS OF NUTRITION AND METABOLISM 2006; 50:407-12. [PMID: 16847392 DOI: 10.1159/000094631] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2005] [Accepted: 02/07/2006] [Indexed: 11/19/2022]
Abstract
BACKGROUND/AIMS The present study aims to investigate the contribution of alcohol toxicity to the development of malnutrition by assessing the effect of consuming a moderate amount of white wine on plasma insulin and serum IgA under fasting conditions. METHODS A total of 5 non-alcoholic males aged between 19 and 22 years participated in the current investigation. The experimental procedure required participants to undergo a 6-hour fast before ingesting 4 standard units of alcohol (40 g) in the form of white wine over a 120-min period. The level of blood alcohol, plasma insulin and serum IgA was assessed at 30-min intervals across the 120-min experimental period. RESULTS Consuming alcohol promotes a significant increase in serum IgA in the absence of any change in plasma insulin or ketone production in fasted individuals. CONCLUSION White wine prior to a meal does not promote glucose metabolism and utilization and may increase the risk of developing a transient diabetic condition due to an alteration in energy metabolism.
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Affiliation(s)
- Anna Kokavec
- School of Psychological Science, La Trobe University, Bendigo, Australia
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Pierucci-Lagha A, Covault J, Feinn R, Khisti RT, Morrow AL, Marx CE, Shampine LJ, Kranzler HR. Subjective effects and changes in steroid hormone concentrations in humans following acute consumption of alcohol. Psychopharmacology (Berl) 2006; 186:451-61. [PMID: 16341848 DOI: 10.1007/s00213-005-0231-0] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/23/2005] [Accepted: 10/05/2005] [Indexed: 10/25/2022]
Abstract
BACKGROUND GABAA receptors are an important site of action of endogenous neurosteroids and an important mediator of several behavioral effects of alcohol. This study examined the effects of alcohol on plasma steroid hormone concentrations on the hypothesis that the endocrine effects mediate some of the subjective effects of alcohol. METHODS Thirty-two healthy subjects (17 men) with no history of a substance use disorder participated in this human laboratory study. All subjects consumed three standard drinks of grain alcohol. Subjective measures and blood samples for steroid concentrations were collected at baseline and 40 min after alcohol consumption. RESULTS Alcohol increased self-reported stimulation, alcohol liking, and desire for more alcohol. Alcohol also increased pregnenolone (PREG) and dehydroepiandrosterone (DHEA) concentrations, while it decreased progesterone (PROG) and allopregnanolone (ALLO) concentrations, as well as ALLO/PREG and PROG/PREG ratios. In men, the change in PREG concentration was significantly correlated with alcohol liking, while the alcohol-induced change in ALLO concentration correlated significantly with both alcohol liking and desire for more alcohol. DISCUSSION These findings provide preliminary support for the hypothesis that endogenous neurosteroids mediate some of the subjective effects of alcohol. Efforts to replicate these findings should aim to specify more clearly the nature and time course of the effects.
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Affiliation(s)
- Amira Pierucci-Lagha
- Department of Psychiatry, Alcohol Research Center, University of Connecticut School of Medicine, Farmington, CT 06030, and Department of Psychiatry and Behavioral Sciences, Durham VA Medical Center, NC 27705, USA
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Abstract
Cholesterol and its metabolites, e.g., steroid hormones and bile acids, constitute a class of compounds of great biological importance. Their chemistry, biochemistry, and regulation in the body have been intensely studied for more than two centuries. The author has studied aspects of the biochemistry and clinical chemistry of steroids and bile acids for more than 50 years, and this paper, which is an extended version of the Schroepfer Medal Award lecture, reviews and discusses part of this work. Development and application of analytical methods based on chromatography and mass spectrometry (MS) have been a central part of many projects, aiming at detailed characterization and quantification of metabolic profiles of steroids and bile acids under different conditions. In present terminology, much of the work may be termed steroidomics and cholanoidomics. Topics discussed are bile acids in human bile and feces, bile acid production, bacterial dehydroxylation of bile acids and steroids during the enterohepatic circulation, profiles of steroid sulfates in plasma of humans and other primates, development of neutral and ion-exchanging lipophilic derivatives of Sephadex for sample preparation and group separation of steroid and bile acid conjugates, profiles of steroids and bile acids in human urine under different conditions, hydroxylation of bile acids in liver disease, effects of alcohol-induced redox changes on steroid synthesis and metabolism, alcohol-induced changes of bile acid biosynthesis, compartmentation of bile acid synthesis studied with 3H-labeled ethanol, formation and metabolism of sulfated metabolites of progesterone in human pregnancy, abnormal patterns of these in patients with intrahepatic cholestasis of pregnancy corrected by ursodeoxycholic acid, inherited and acquired defects of bile acid biosynthesis and their treatment, conjugation of bile acids and steroids with N-acetylglucosamine, sulfate-glucuronide double conjugates of hydroxycholesterols, extrahepatic 7alpha-hydroxylation and 3-dehydrogenation of hydroxycholesterols, and extrahepatic formation of C27 bile acids. The final part discusses analysis of free and sulfated steroids in brain tissue by capillary liquid chromatography-electrospray MS and suggests a need for reevaluation of the function of steroid sulfates in rat brain.
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Affiliation(s)
- Jan Sjövall
- Department of Medical Biochemistry and Biophysics, Karolinska Institutet, SE-171 77, Stockholm, Sweden.
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11
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Kokavec A, Crowe SF. The consequences of imbibing alcohol in the absence of adequate nutrition: the salt and water hypothesis. Med Hypotheses 2001; 57:667-72. [PMID: 11918423 DOI: 10.1054/mehy.2001.1339] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Alcohol can have an effect on almost every cell in the human body and it is becoming increasingly clear that when alcohol is consumed the prior nutritional status of the individual may be an important factor for long-term health. The salt and water hypothesis integrates the biochemical findings from the current alcohol literature and proposes a mechanism by which alcohol consumption prior to food intake may cause a transient alteration in the functioning of the hypothalamic-pituitary-adrenal axis due to an alcohol-induced impairment in electrolyte regulation.
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Affiliation(s)
- A Kokavec
- School of Psychological Science, La Trobe University, Bundoora, Australia
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Kokavec A, Crowe SF. The effect of a moderate level of white wine consumption on the hypothalamic-pituitary-adrenal axis before and after a meal. Pharmacol Biochem Behav 2001; 70:243-50. [PMID: 11701194 DOI: 10.1016/s0091-3057(01)00606-2] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
The nutritional status of the individual at the time of alcohol consumption may mediate the rate of alcohol absorption and metabolism, thus influencing the systemic effect of alcohol on the body. The aim in the present investigation was to assess the effect of moderate white wine consumption on the hypothalamic-pituitary-adrenal (HPA) axis under variable nutritional conditions. Seven males aged between 19 and 22 years participated in all aspects of the current investigation. The experimental procedure for the fasting trial required participants to ingest either 4 standard units of alcohol (40 g) or the equivalent amount of placebo over a 135-min period before consuming food for 45 min. Alternatively, in the feeding trial, food was consumed for 45 min prior to participants ingesting either 4 standard units of alcohol (40 g) or the equivalent amount of placebo over a 135-min period. Blood alcohol, salivary cortisol, and salivary dehydroepiandrosterone sulfate (DHEAS) levels were assessed at 45-min intervals during the 180-min experimental periods. The results demonstrated a significant alcohol-induced decrease in salivary cortisol irrespective of nutritional status and a significant decrease in salivary DHEAS when alcohol is consumed alone under fasting conditions only. It was concluded that moderate white wine consumption may promote a transient alteration in the functioning of the HPA axis.
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Affiliation(s)
- A Kokavec
- School of Psychological Science, La Trobe University, Bundoora 3083, Australia
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Nobel S, Abrahmsen L, Oppermann U. Metabolic conversion as a pre-receptor control mechanism for lipophilic hormones. EUROPEAN JOURNAL OF BIOCHEMISTRY 2001; 268:4113-25. [PMID: 11488903 DOI: 10.1046/j.1432-1327.2001.02359.x] [Citation(s) in RCA: 65] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
The majority of physiological effects mediated by steroids, retinoids and thyroids is accomplished by binding to members of the nuclear receptor superfamily of ligand activated transcription factors. The complex specific effects of lipid hormones depend not only on receptor expression, distribution and interactions, but also on the availability and metabolic conversion of the hormone itself. The cell-specific metabolic activation of inactive hormone precursors introduces a further level of hormonal regulation, and constitutes an important concept in endocrinology. The metabolic reactions carried out are achieved by dehydrogenases/reductases, hydroxylases and other enzymes, acting on ligands of the steroid/thyroid/retinoic hormone receptor superfamily. The concept implies that these tissue- and cell-specific metabolic conversions contribute to lipid hormone action, thus pointing to novel targets in drug development. All components of this signalling system, the hormone compounds, the receptor proteins, and modifying enzyme families originate from an early metazoan date, emphasizing the essential nature of all elements for development and diversification of vertebrate life.
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Affiliation(s)
- S Nobel
- Biovitrum AB, Division of Pharmaceuticals, Department of Assay Development and Screening, Stockholm, Sweden
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Tamimi R, Mucci LA, Spanos E, Lagiou A, Benetou V, Trichopoulos D. Testosterone and oestradiol in relation to tobacco smoking, body mass index, energy consumption and nutrient intake among adult men. Eur J Cancer Prev 2001; 10:275-80. [PMID: 11432716 DOI: 10.1097/00008469-200106000-00012] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
There is substantial evidence linking steroid hormones and diet to cancer aetiology. The evidence on lifestyle determinants of steroid hormones, however, is limited. We have conducted a study to identify dietary and other lifestyle predictors of testosterone and oestradiol among adult men. Subjects were 112 healthy Greek men, recruited as controls in a case-control study on the aetiology of liver cancer. Demographic data and detailed histories of smoking habits and alcohol consumption were recorded. Diet was assessed through an interviewer-administered validated food-frequency questionnaire. Serologic measurements of oestradiol, testosterone and sex hormone binding globulin were also conducted. We developed linear regression models to evaluate the associations of smoking and dietary factors with serum testosterone and oestradiol. The results indicate that, among men, both testosterone and oestradiol serum levels decline with age, whereas body mass index may be inversely related with testosterone and positively with oestradiol. The evidence concerning alcohol in relation to these hormones is inconclusive. Emerging evidence concerning smoking suggests positive associations with both hormones in the blood. The principal nutritional findings are a positive association of carbohydrate intake with testosterone levels and a set of inverse associations of vitamins with oestradiol.
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Affiliation(s)
- R Tamimi
- Department of Epidemiology, Harvard School of Public Health, Boston, MA 02115, USA
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15
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Breslow RA, Wideroff L, Graubard BI, Erwin D, Reichman ME, Ziegler RG, Ballard-Barbash R. Alcohol and prostate cancer in the NHANES I epidemiologic follow-up study. First National Health and Nutrition Examination Survey of the United States. Ann Epidemiol 1999; 9:254-61. [PMID: 10332931 DOI: 10.1016/s1047-2797(98)00071-4] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
PURPOSE We prospectively investigated the association between alcohol consumption and prostate cancer in the Epidemiologic Follow-up Study (NHEFS) of the first National Health and Nutrition Examination Survey (NHANES I). METHODS There were two cohorts: 1) Cohort I, followed from baseline (1971-75) through 1992, included 5766 men ages 25-74 years (median follow-up = 17 years); and 2) Cohort II, followed from the first follow-up round for Cohort I (1982-84) through 1992, included the 3868 men in Cohort I free of prostate cancer in 1982-84 (median follow-up = 9 years). Alcohol consumption was assessed at baseline as usual consumption, and at follow-up as usual consumption and as distant past consumption at the ages of 25, 35, 45, and 55. RESULTS There were 252 incident cases of prostate cancer. Consistent with most previous studies, we found no significant associations between usual total alcohol consumption and prostate cancer in Cohorts I or II [p = non significant (NS)], except for a significant inverse association at the heaviest level of drinking in Cohort II [relative risk (RR) = 0.23, 95% confidence interval (CI) = 0.06-0.95]. Further study of heavy drinkers in Cohort II revealed significant inverse associations between distant past heavy drinking (defined as > 25 drinks/week) and prostate cancer at age 25 (RR = 0.20, 95% CI = 0.06-0.63), age 35 (RR = 0.30, 95% CI = 0.12-0.77), and age 45 (RR = 0.39, 95% CI = 0.17-0.93), but not at age 55 (RR = 0.43, 95% CI = 0.17-1.10). CONCLUSIONS These results suggest that it may be important to consider distant past alcohol consumption in etiologic studies of prostate cancer. However, our results were based on small numbers of cases who were heavy drinkers and require replication.
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Affiliation(s)
- R A Breslow
- Applied Research Branch, Division of Cancer Prevention and Control, National Cancer Institute, Bethesda, MD, USA
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Hsieh CC, Signorello LB, Lipworth L, Lagiou P, Mantzoros CS, Trichopoulos D. Predictors of sex hormone levels among the elderly: a study in Greece. J Clin Epidemiol 1998; 51:837-41. [PMID: 9762876 DOI: 10.1016/s0895-4356(98)00069-9] [Citation(s) in RCA: 42] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
This study examines the relationship between a series of epidemiologic parameters (age, height, body mass index (BMI), smoking, alcohol consumption, and coffee drinking) and serum concentrations of testosterone, estradiol, sex hormone-binding globulin (SHBG), and dehydroepiandrosterone sulfate (DHEAS). Among 52 healthy, elderly Greek men, we observed that serum levels of DHEAS decreased with increasing age [19% decline per 5-year increase in age, 95% CI, -2.1-(-33.5)], obesity [48% decline for BMI >30 kg/m2 compared to <27 kg/m2, CI, -15.7-(-68.7)], and current smoking [37% decline compared to nonsmokers, CI, -9.5-(-57.2)]. Estradiol concentrations increased with increasing BMI [77.1% increase for BMI >30 kg/m2 compared to <27 kg/m2, CI, -12.0-256.3], alcohol drinking [66% increase for > or = 7 glasses/week compared to <7 glasses/week, CI, 4.4-164.4], and coffee drinking [59% increase for > or = 14 cups/week compared to > or = 14 cups/ week, CI, -0.5-155.9], and decreased among current smokers [40% decline compared to nonsmokers, CI, -64.9-0.8]. SHBG was marginally positively associated with increasing age [13% increase per 5 years, CI, -0.5-29.6]. Testosterone was significantly related only to current smoking [27% decline compared to nonsmokers, CI, -45.4-(-3.1)]. These findings suggest that several variables appear to be associated with sex steroid levels and the influence of these findings on the occurrence of hormone-related conditions warrants further exploration.
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Affiliation(s)
- C C Hsieh
- Cancer Center, University of Massachusetts Medical Center, Worcester, USA
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Abstract
The biological mechanisms behind ethanol-induced aggression are not known. Because gonadal hormones are linked both to aggression and ethanol, the present study examined relationships among the levels of serum estradiol (E2), testosterone (T), and aggressive behavior in ethanol-treated male mice. We found that among group-housed male mice, serum E2 levels were significantly elevated 30 min after a single injection of 0.6 g/kg ethanol. Serum T levels showed a nonsignificant decrease by ethanol. The E2/T ratio, an index of aromatization of T to E2, was significantly higher in the ethanol-treated animals when compared with the vehicle-treated animals. We also determined aggressive behavior in the resident-intruder test among isolated male mice at baseline (after a vehicle), and after an injection of 0.6 g/kg ethanol. The mice were grouped accordingly to those that increased, decreased, or remained nonaggressive in response to ethanol administration. We found that at baseline, neither serum T or E2 levels, nor E2/T ratio differed significantly between the increased or reduced aggressor mice. In contrast to the increase in serum E2 levels seen in the nonaggressive mice, ethanol significantly reduced circulating E2 levels, but did not affect aromatization of E2 from T in the mice that became aggressive following an ethanol injection. These data suggest that mice who exhibit a paradoxical decrease in serum E2 levels by ethanol may be particularly prone to ethanol-induced aggression.
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Affiliation(s)
- L Hilakivi-Clarke
- Lombardi Cancer Center, Georgetown University, Washington, DC 20007, USA
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18
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Abstract
Alcohol has been identified as a risk factor for the development of osteoporosis. Chronic alcohol abuse has been shown to decrease bone mass and increase the incidence of fractures. Although the exact mechanism by which alcohol influences bone metabolism is not clear, it is likely a combination of both direct and indirect effects on bone cells. Alcohol has the potential to alter bone metabolism indirectly through its effects on gonadal hormones and through the secretion of cytokines shown to be critical factors in postmenopausal osteoporosis. Data are summarized here demonstrating that interleukin-1 and tumor necrosis factor play a direct causal role in the bone loss due to estrogen deficiency. In addition, studies are cited showing that these same cytokines are produced in alcohol-induced liver disease with the potential to enhance bone loss in post-menopausal women and in male patients. Although there are not yet data directly supporting the role of cytokines in bone loss due to alcohol consumption, the studies presented herein are intended to stimulate further research on the role of alcohol, estrogen, and cytokines in osteoporotic bone loss.
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Affiliation(s)
- R B Kimble
- Division of Bone and Mineral Diseases, Washington University School of Medicine, St. Louis, Missouri, USA
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Karila T, Kosunen V, Leinonen A, Tähtelä R, Seppälä T. High doses of alcohol increase urinary testosterone-to-epitestosterone ratio in females. JOURNAL OF CHROMATOGRAPHY. B, BIOMEDICAL APPLICATIONS 1996; 687:109-16. [PMID: 9001958 DOI: 10.1016/s0378-4347(96)00204-6] [Citation(s) in RCA: 24] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
The effect of alcohol (1.2 and 2.0 g/kg) on the urinary testosterone-to-epitestosterone (T/E) ratio was studied by two experiments each conducted with four healthy females and males. The intake of 2.0 g/kg of ethanol within 5 h in the evening significantly increased plasma testosterone concentration and ratio of T/E in urine collected next morning in females. The results suggest that alcohol increases the T/E ratio more in females than in males. The effect of high doses of alcohol on urinary T/E ratio must be kept in mind when doping tests are performed during training periods.
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Affiliation(s)
- T Karila
- National Public Health Institute, Laboratory of Pharmacology and Toxicology, Helsinki, Finland
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20
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Uusijärvi J, Egestad B, Sjövall J. Manual and automated enrichment procedures for biological samples using lipophilic gels. JOURNAL OF CHROMATOGRAPHY 1989; 488:87-104. [PMID: 2654167 DOI: 10.1016/s0378-4347(00)82941-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Aspects of the use of lipophilic gels in manual sample preparation procedures are reviewed. Neutral gels with a controlled hydrophobicity are used for sorbent extraction of non-polar and medium polarity compounds from biological fluids. Acidic amphiphilic compounds can be extracted as ion-pairs with decyltrimethylammonium ions. Solvent or detergent extracts of tissues or faeces can be mixed with hydrophobic gels for transfer of analytes from a solvent to a gel phase, permitting subsequent sample preparation in gel bed systems. Hydrophobic gels, alkyl-bonded silica and polystyrene matrices can be used in series for extraction of compounds with a wide range of polarities. Group fractionations are performed on neutral and ion-exchanging lipophilic gels to yield fractions of neutral, basic and acidic metabolites within selected polarity ranges. Selective isolation of phenolic acids on a strong anion exchanger, of ethynylic steroids on a strong cation exchanger in silver form and of oximes of ketonic steroids on a strong cation exchanger in hydrogen form is possible. A computerized system for automatic sample preparation is also described. It consists of an extraction bed, a cation-exchange column and an anion-exchange column. The pumps and switching valves are arranged so that the columns can operate in series or parallel for isolation of neutral, basic and acidic metabolites of amphiphilic compounds and for regeneration of the column beds. Fractions can be collected, or the effluent from the column beds can be diluted with water to permit sorption on a solid phase. The applicability of the automated method to the analysis of bile acids and metabolites of mono(2-ethylhexyl) phthalate is demonstrated.
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Affiliation(s)
- J Uusijärvi
- Department of Physiological Chemistry, Karolinska Institutet, Stockholm, Sweden
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21
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Couwenbergs CJ. Acute effects of drinking beer or wine on the steroid hormones of healthy men. JOURNAL OF STEROID BIOCHEMISTRY 1988; 31:467-73. [PMID: 3172777 DOI: 10.1016/0022-4731(88)90317-2] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Plasma Testosterone, Dihydrotestosterone and Estradiol were determined in 72 healthy volunteers, divided into 36 beer and 36 wine drinkers, who consumed between 0.9-2.1 g ethanol/kg b.wt, simulating natural patterns of drinking. Blood samples were taken 5-10 h after drinking ceased and compared with control samples withdrawn exactly 24 h previously. For a consideration of the time variation of blood sampling, the subjects were classified as fast and slow drinkers. All groups exhibited both depressed and elevated testosterone levels, depending upon the time after drinking (fast beer drinkers) and upon the amount of alcohol (fast wine drinkers). Consumption of beer and wine significantly (P less than 0.05) inhibited dihydrotestosterone biosynthesis; depending on the time after drinking (only in beer drinkers) and blood alcohol levels (slow beer drinkers). Estradiol levels were significantly elevated (P less than 0.05-less than 0.001); correlating with the amount of beer and wine/kg b.wt, with time after drinking (fast beer drinkers), and with blood alcohol levels (fast wine drinkers). Consumption of these beverages showed different dependencies for the changed hormone levels. It is discussed whether the estrogenic constituents of beer and wine might be responsible for the enhancement of estradiol, which could contribute towards clarifying the phenomenon of feminization observed with chronic abuse of alcohol.
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Affiliation(s)
- C J Couwenbergs
- Institute of Human Biology, University of Hamburg, West Germany
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22
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Phipps WR, Lukas SE, Mendelson JH, Ellingboe J, Palmieri SL, Schiff I. Acute ethanol administration enhances plasma testosterone levels following gonadotropin stimulation in men. Psychoneuroendocrinology 1987; 12:459-65. [PMID: 3126515 DOI: 10.1016/0306-4530(87)90080-1] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Plasma levels of LH, FSH, prolactin (PRL), and testosterone (T) were assessed in six normal men following administration of a pharmacologic dose of gonadotropin releasing hormone (GnRH) (500 micrograms iv over a one-min period) with concomitant oral administration of either ethanol (0.695 g/kg of body weight over a 15-min period) or ethanol placebo. Acute ethanol administration had no effect on the response of either LH or FSH to GnRH. PRL levels increased following GnRH and administration of both ethanol and ethanol placebo. Ethanol administration enhanced the T response to GnRH (p less than 0.001 vs placebo). During the placebo condition, T levels did not rise significantly until 100 min after GnRH administration, at which time the mean increment over baseline was 101 +/- 20 ng/dl (+/- SEM). In contrast, following ethanol intake, T levels were significantly elevated within 30 min after GnRH administration, at which time the mean increment over baseline was 187 +/- 42 ng/dl. The mean T increments were 304 +/- 62 and 472 +/- 77 ng/dl, respectively, 60 and 105 min following GnRH and ethanol administration. The increase in T levels following acute ethanol intake and concomitant gonadotropin stimulation is in contrast to the well-documented effect of chronic ethanol intake on suppression of testosterone synthesis by testicular Leydig cells.
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Affiliation(s)
- W R Phipps
- Department of Obstetrics and Gynecology, Brigham and Women's Hospital/Harvard Medical School, Boston, Massachusetts
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