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List of works by Lena Ekström

Androgens and doping tests: genetic variation and pit‐falls ⬇️

scientific article published on July 1, 2012

Bioavailability of testosterone enanthate dependent on genetic variation in the phosphodiesterase 7B but not on the uridine 5'-diphospho-glucuronosyltransferase (UGT2B17) gene

scientific article

CYP2C8 and CYP2C9 mRNA expression profile in the human fetus

scientific article published on 25 March 2014

Codeine influences the serum and urinary profile of endogenous androgens but does not interact with the excretion rate of administered testosterone.

scientific article published on 13 September 2017

Detection of morphine-3-sulfate and morphine-6-sulfate in human urine and plasma, and formation in liver cytosol

scientific article

Discordant genotyping results using DNA isolated from anti-doping control urine samples

scientific article published on 5 October 2016

Effects of different doses of testosterone on gonadotropins, 25-hydroxyvitamin D3, and blood lipids in healthy men

scientific article

Expression of UGT2B7 is driven by two mutually exclusive promoters and alternative splicing in human tissues: changes from prenatal life to adulthood and in kidney cancer

scientific article published on December 2013

Fluctuations of hematological Athlete Biological Passport biomarkers in relation to the menstrual cycle

scientific article published on 04 June 2020

Genetic aspects of epitestosterone formation and androgen disposition: influence of polymorphisms in CYP17 and UGT2B enzymes

scientific article published in June 2008

Genetic variation in androgen disposition: implications in clinical medicine including testosterone abuse

scientific article published on July 2009

Impact of hormonal contraceptives on urinary steroid profile in relation to serum hormone changes and CYP17A1 polymorphism

scientific article published on 17 July 2019

Implication of Human UGT2B7, 2B15, and 2B17 in 19-Norandrosterone Metabolism.

scientific article published on 26 June 2013

Inter-individual variation of the urinary steroid profiles in Swedish and Norwegian athletes

scientific article published on 12 February 2020

Large differences in testosterone excretion in Korean and Swedish men are strongly associated with a UDP-glucuronosyl transferase 2B17 polymorphism

scientific article

Longitudinal studies of putative growth hormone (GH) biomarkers and hematological and steroidal parameters in relation to 2 weeks administration of human recombinant GH

scientific article published on 01 March 2020

Longitudinally monitoring of P-III-NP, IGF-I and GH-2000 score increase the probability to detect 2 weeks administration of low doses recombinant growth hormone compared to GH-2000 decision limit and GH isoform test and micro RNA markers

scientific article published on 04 November 2018

Non-Steroidal Anti-Inflammatory Drugs Do Not Influence the Urinary Testosterone/Epitestosterone Glucuronide Ratio ⬇️

scientific article published on May 16, 2013

Novel route for elimination of brain oxysterols across the blood-brain barrier: conversion into 7alpha-hydroxy-3-oxo-4-cholestenoic acid.

scientific article

PDE7B is involved in nandrolone decanoate hydrolysis in liver cytosol and its transcription is up-regulated by androgens in HepG2.

scientific article

Pregnancy greatly affect the steroidal module of the athlete biological passport.

scientific article

Prenatal expression of thioredoxin reductase 1 (TRXR1) and microsomal glutathione transferase 1 (MGST1) in humans

scientific article

Radical prostatectomy: influence on serum and urinary androgen levels

scientific article published in February 2010

Recruitment to doping and help-seeking behavior of eight female AAS users

scientific article

Regulation and expression of human CYP7B1 in prostate: overexpression of CYP7B1 during progression of prostatic adenocarcinoma

scientific article

SULT2A1 Gene Copy Number Variation is Associated with Urinary Excretion Rate of Steroid Sulfates

scientific article published on 12 July 2013

Sensitivity of doping biomarkers after administration of a single dose testosterone gel.

scientific article published on 18 November 2017

Single dose testosterone increases total cholesterol levels and induces the expression of HMG CoA Reductase ⬇️

scientific article published on March 20, 2012

Studies of athlete biological passport biomarkers and clinical parameters in male and female users of anabolic androgenic steroids and other doping agents

scientific article published on 29 January 2020

Studies on the transcriptional regulation of cholesterol 24-hydroxylase (CYP46A1): marked insensitivity toward different regulatory axes

scientific journal article

Substantial advantage of a combined Bayesian and genotyping approach in testosterone doping tests

scientific article published on 13 November 2008

Testosterone challenge and androgen receptor activity in relation to UGT2B17 genotypes

scientific article

The intra-individual stability of hGH biomarkers IGF-I and P-III-NP in relation to GHRH administration, menstrual cycle and hematological parameters

scientific article published on 30 October 2020

Urinary steroid profile in relation to the menstrual cycle

scientific article published on 03 November 2020

miRNA-27b levels are associated with CYP3A activity in vitro and in vivo

scientific article published on 27 October 2015

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