PhD Defense · 17 June 2026

From Target to Modulator.

Integrative approaches to understanding and activating the gamma-glutamyl cycle in heart failure.

Candidate Jose Antonio Esquivel-Gaytan
Institution University of Groningen
Supervisor Prof. P. van der Meer

01 · Public DefenseYou are invited.

University of Groningen

The public defense of the doctoral thesis
From Target to Modulator

Date
Wednesday, 17 June 2026
Time
14.30 hours
Stream
Watch the livestream ↗
Venue
Aula, Academiegebouw
Broerstraat 5, 9712 CP Groningen
By
Jose Antonio Esquivel-Gaytan
Promotor
Prof. P. van der Meer
Co-promotor
Dr. N. Bömer
Paranymphs
Karla Arevalo, MSc
Valentina Braçun, PhD
Days
Hours
Minutes
Seconds
Academiegebouw
Broerstraat 5, 9712 CP Groningen
The Netherlands
View on map →

And afterwards — you are invited to celebrate.

17 June 2026
01 · Reception
Directly after~ 16.30
Reception

Same building — Academiegebouw, Broerstraat 5

Drinks and bites with the committee, family and friends, immediately following the defense in the Aula.

02 · Drinks
From 19.15
Celebration drinks

Hemingway Groningen ↗

An informal evening to keep the conversation going. Come for one, stay for many — everyone welcome.

02 · The ThesisFrom Target to Modulator.

Thesis cover: From Target to Modulator
Click to open the flipbook

Heart failure remains one of the most challenging syndromes in contemporary cardiovascular medicine — population studies still report ~50% mortality at five years after diagnosis. Decades of antioxidant trials have largely failed, yet the underlying premise — that oxidative stress drives progression — keeps reasserting itself.

This thesis steps back from broad-spectrum antioxidants and into a single regulatory hub: the gamma-glutamyl cycle. Across six chapters it moves from systematic evidence and patient cohorts, through translational biomarkers, into novel nanoparticle-mediated delivery of an activator for 5-oxoprolinase — reframing a metabolic target as a tractable modulator for heart-failure therapy.

Access phrase required — request it via email below.

03 · Chapters & PublicationsSix chapters, one cycle.

CH. 01

General Introduction

Framing the heart-failure burden, oxidative stress as an outdated paradigm, and the case for the gamma-glutamyl cycle.
p. 09
CH. 02

Glutathione Deficiency and Heart Failure

A systematic review of human and animal evidence — what we actually know about glutathione depletion across heart-failure phenotypes.
Published · ScienceDirect
p. 17
CH. 03

Elevated 5-Oxoproline Levels and Adverse Outcomes

A clinical biomarker study linking 5-oxoproline to outcomes in heart-failure cohorts — and what it reveals about a stressed cycle.
p. 61
CH. 04

Nanoparticle-Mediated AMP Delivery

Adenosine 5′-monophosphate, delivered via nanoparticles, enhances 5-oxoprolinase activity and mitigates oxidative stress in heart failure.
Published · Advanced Therapeutics (Wiley)
p. 127
CH. 05

404-Error “Disease Not Found”

Unleashing the translational potential of -omics approaches beyond traditional disease classification in heart-failure research.
Published · European Journal of Heart Failure
p. 171
CH. 06

General Discussion

Synthesis: from target to modulator. What changes if we treat the gamma-glutamyl cycle as a tunable system rather than a passive readout.
p. 205

04 · Work with AntonioBeyond the lab.

A decade between bench science, clinical research and translational medicine — turned into practical help for teams shipping into healthcare. Short engagements, advisory calls, or a longer collaboration; whichever shape the problem needs.

01

AI in healthcare

From hospital workflows to model evaluation — framing what AI can and can’t safely do in clinical settings, and what good translational evidence looks like for it.

02

Compliance

EU MDR, GDPR, IRB/MEC and EMA pathways. Translating regulatory requirements into product decisions that don’t stall once they hit a hospital legal desk.

03

Consulting

Study design, biomarker strategy, scientific advisory and second opinions on cardiovascular and metabolic research — grounded in active clinical practice.

No pitch deck required

Let’s have a coffee.

The fastest way to know if there’s a fit is twenty minutes on a call. Tell me what you’re working on and what kind of input would help — I’ll come back within a few days.

Book a coffee j.esquivel.gaytan@gmail.com
BasedGroningen, NL
LangEN · ES · NL
FormatRemote or in person

05 · ContactStay in touch.

MD from the National Autonomous University of Mexico (2016); MSc in Nanotechnology & Regenerative Medicine from UCL (2017, distinction); PhD candidate at the UMCG Experimental Cardiology department since 2018, currently exploring 5-oxoprolinase as a therapeutic target for heart failure with preserved ejection fraction.

Open to conversations about heart-failure metabolism, translational nanomedicine, and AI-driven tools for biomedical research.