Measuring luteinising hormone pulsatility with a robotic aptamer-enabled electrochemical reader

Shaolin Liang, Andrew B. Kinghorn, Margaritis Voliotis, Julia K. Prague, Johannes D. Veldhuis, Krasimira Tsaneva-Atanasova, Craig A. McArdle, Raymond H.W. Li, Anthony E.G. Cass, Waljit S. Dhillo, Julian A. Tanner

Research output: Contribution to journalArticlepeer-review

15 Scopus citations


Normal reproductive functioning is critically dependent on pulsatile secretion of luteinising hormone (LH). Assessment of LH pulsatility is important for the clinical diagnosis of reproductive disorders, but current methods are hampered by frequent blood sampling coupled to expensive serial immunochemical analysis. Here, we report the development and application of a Robotic APTamer-enabled Electrochemical Reader (RAPTER) electrochemical analysis system to determine LH pulsatility. Through selective evolution of ligands by exponential enrichment (SELEX), we identify DNA aptamers that bind specifically to LH and not to related hormones. The aptamers are integrated into electrochemical aptamer-based (E-AB) sensors on a robotic platform. E-AB enables rapid, sensitive and repeatable determination of LH concentration profiles. Bayesian Spectrum Analysis is applied to determine LH pulsatility in three distinct patient cohorts. This technology has the potential to transform the clinical care of patients with reproductive disorders and could be developed to allow real-time in vivo hormone monitoring.

Original languageEnglish (US)
Article number852
JournalNature communications
Issue number1
StatePublished - Dec 1 2019

ASJC Scopus subject areas

  • General Chemistry
  • General Biochemistry, Genetics and Molecular Biology
  • General Physics and Astronomy


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