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Emerging biomarkers in cardiometabolic disease

Molvin, John LU (2020) In Lund University, Faculty of Medicine Doctoral Dissertation Series
Abstract
Abstract
The epidemiological association between diabetes and heart failure is well-established and the two entities are
emerging as global threats, both individually and synergistically, to an aging population. The exploration of multiple
proteins can shed light on pathophysiological pathways in both diabetes and cardiovascular disease. This can
possibly provide novel diagnostic, prognostic and hopefully therapeutic implications.
The overall aim of this dissertation was to explore novel biomarkers in cardiometabolic disease especially in heart
failure.
This thesis was based on epidemiological data from the Malmö Preventive Project Re-Examination (MPP-RES)
study and the Heart and brain failure investigation... (More)
Abstract
The epidemiological association between diabetes and heart failure is well-established and the two entities are
emerging as global threats, both individually and synergistically, to an aging population. The exploration of multiple
proteins can shed light on pathophysiological pathways in both diabetes and cardiovascular disease. This can
possibly provide novel diagnostic, prognostic and hopefully therapeutic implications.
The overall aim of this dissertation was to explore novel biomarkers in cardiometabolic disease especially in heart
failure.
This thesis was based on epidemiological data from the Malmö Preventive Project Re-Examination (MPP-RES)
study and the Heart and brain failure investigation trial (HARVEST-Malmö). In Paper 1 we used a multiplex
proteomic panel consisting of 92 proteins with known or alleged associations with cardiovascular disease,
metabolism and inflammation to explore novel biomarkers for incident diabetes in the population-based cohort
MPP-RES (n=1026). We were able to identify seven proteins associated with incident diabetes, of which four not
previously described. Two of these (Galectin-4 and Paraoxonase-3) were associated with diabetes independently
of fasting plasma glucose implying an glucose-independent association with diabetes.
In Paper 2, we built upon the results from Paper 1, since one of our ultimate aims with this thesis was to explore
common pathophysiological pathways between diabetes and cardiovascular disease. Using the seven proteins
identified in Paper 1 we investigated whether these were associated with pertinent cardiovascular outcomes such
as all-cause and cardiovascular mortality, incident coronary events and incident heart failure. We found that two
proteins (Galectin-4 and Cathepsin D) were associated with all investigated outcomes in multivariable Cox
regression analyses and represented novel findings. Galectin-4 may possibly exert its effect on cardiometabolic
disease through the incretin system and Cathepsin-D has previously been described to reduce the antioxidative
effects of high-density lipoprotein.
In Paper 3, we switched from the population-based MPP-RES cohort to the HARVEST-Malmö study which
consists of heart failure patients admitted to the cardiology and internal medicine wards at Skånes University
Hospital in Malmö, Sweden. We assessed the predictive ability in terms of mortality and re-hospitalization, of five
different proteins (midregional pro-adrenomedullin, copeptin, NT-proBNP, CT-pro-endothelin-1 and cystatin C).
The investigated proteins represent different pathophysiological mechanisms involved in heart failure such as the
neuroendocrine response, cardiovascular stress and renal function. Higher plasma levels of all proteins but CTpro-
endothelin-1 were associated with increased risk of post-discharge mortality but only NT-proBNP, which in
many ways is the gold standard for biomarkers in heart failure, was associated with increased risk of rehospitalization.
Finally, in Paper 4, which was a collaboration with an Italian heart failure study (GREAT Rome Network) we
investigated the effects of two emerging biomarkers in heart failure; bioactive adrenomedullin (bio-ADM) which is
considered a marker for congestion, and proenkephalin A (penKid), which is a marker for renal dysfunction. While
NT-proBNP has many uses, it has not been shown to adequately assess residual congestion in heart failure
patients. We were able to show that increased levels of bio-ADM were associated with increased congestion
measured through a clinical congestion score where peripheral edema was the strongest and driving association.
Furthermore, we showed that bio-ADM was predictive of 1-year mortality, increased risk of re-hospitalization and
length of hospital stay. PenKid levels responded approximately 48 hours prior to creatinine in the setting of acute
kidney injury and we showed that penKid was associated with worsening renal function as well as with in-hospital
and 1-year mortality. (Less)
Please use this url to cite or link to this publication:
author
supervisor
opponent
  • Professor Pernow, John, Karolinska Institutet
organization
publishing date
type
Thesis
publication status
published
subject
keywords
Diabetes mellitus, type 2, Biomarker discovery, Cardiometabolic disease, cardiometabolic biomarkers, CVD, galectin 4, Olink
in
Lund University, Faculty of Medicine Doctoral Dissertation Series
issue
2020:127
pages
77 pages
publisher
Lund University, Faculty of Medicine
defense location
Agardh föreläsningssal, CRC, Jan Waldenströms gata 35, Skånes Universitetssjukhus i Malmö
defense date
2020-11-27 13:30:00
ISSN
1652-8220
ISBN
978-91-7619-990-9
language
English
LU publication?
yes
id
44f23527-35da-41bd-b26c-432c60a4cec6
date added to LUP
2020-11-11 14:16:56
date last changed
2020-11-12 10:47:12
@phdthesis{44f23527-35da-41bd-b26c-432c60a4cec6,
  abstract     = {{Abstract<br/>The epidemiological association between diabetes and heart failure is well-established and the two entities are<br/>emerging as global threats, both individually and synergistically, to an aging population. The exploration of multiple<br/>proteins can shed light on pathophysiological pathways in both diabetes and cardiovascular disease. This can<br/>possibly provide novel diagnostic, prognostic and hopefully therapeutic implications.<br/>The overall aim of this dissertation was to explore novel biomarkers in cardiometabolic disease especially in heart<br/>failure.<br/>This thesis was based on epidemiological data from the Malmö Preventive Project Re-Examination (MPP-RES)<br/>study and the Heart and brain failure investigation trial (HARVEST-Malmö). In Paper 1 we used a multiplex<br/>proteomic panel consisting of 92 proteins with known or alleged associations with cardiovascular disease,<br/>metabolism and inflammation to explore novel biomarkers for incident diabetes in the population-based cohort<br/>MPP-RES (n=1026). We were able to identify seven proteins associated with incident diabetes, of which four not<br/>previously described. Two of these (Galectin-4 and Paraoxonase-3) were associated with diabetes independently<br/>of fasting plasma glucose implying an glucose-independent association with diabetes.<br/>In Paper 2, we built upon the results from Paper 1, since one of our ultimate aims with this thesis was to explore<br/>common pathophysiological pathways between diabetes and cardiovascular disease. Using the seven proteins<br/>identified in Paper 1 we investigated whether these were associated with pertinent cardiovascular outcomes such<br/>as all-cause and cardiovascular mortality, incident coronary events and incident heart failure. We found that two<br/>proteins (Galectin-4 and Cathepsin D) were associated with all investigated outcomes in multivariable Cox<br/>regression analyses and represented novel findings. Galectin-4 may possibly exert its effect on cardiometabolic<br/>disease through the incretin system and Cathepsin-D has previously been described to reduce the antioxidative<br/>effects of high-density lipoprotein.<br/>In Paper 3, we switched from the population-based MPP-RES cohort to the HARVEST-Malmö study which<br/>consists of heart failure patients admitted to the cardiology and internal medicine wards at Skånes University<br/>Hospital in Malmö, Sweden. We assessed the predictive ability in terms of mortality and re-hospitalization, of five<br/>different proteins (midregional pro-adrenomedullin, copeptin, NT-proBNP, CT-pro-endothelin-1 and cystatin C).<br/>The investigated proteins represent different pathophysiological mechanisms involved in heart failure such as the<br/>neuroendocrine response, cardiovascular stress and renal function. Higher plasma levels of all proteins but CTpro-<br/>endothelin-1 were associated with increased risk of post-discharge mortality but only NT-proBNP, which in<br/>many ways is the gold standard for biomarkers in heart failure, was associated with increased risk of rehospitalization.<br/>Finally, in Paper 4, which was a collaboration with an Italian heart failure study (GREAT Rome Network) we<br/>investigated the effects of two emerging biomarkers in heart failure; bioactive adrenomedullin (bio-ADM) which is<br/>considered a marker for congestion, and proenkephalin A (penKid), which is a marker for renal dysfunction. While<br/>NT-proBNP has many uses, it has not been shown to adequately assess residual congestion in heart failure<br/>patients. We were able to show that increased levels of bio-ADM were associated with increased congestion<br/>measured through a clinical congestion score where peripheral edema was the strongest and driving association.<br/>Furthermore, we showed that bio-ADM was predictive of 1-year mortality, increased risk of re-hospitalization and<br/>length of hospital stay. PenKid levels responded approximately 48 hours prior to creatinine in the setting of acute<br/>kidney injury and we showed that penKid was associated with worsening renal function as well as with in-hospital<br/>and 1-year mortality.}},
  author       = {{Molvin, John}},
  isbn         = {{978-91-7619-990-9}},
  issn         = {{1652-8220}},
  keywords     = {{Diabetes mellitus, type 2; Biomarker discovery; Cardiometabolic disease; cardiometabolic biomarkers; CVD; galectin 4; Olink}},
  language     = {{eng}},
  number       = {{2020:127}},
  publisher    = {{Lund University, Faculty of Medicine}},
  school       = {{Lund University}},
  series       = {{Lund University, Faculty of Medicine Doctoral Dissertation Series}},
  title        = {{Emerging biomarkers in cardiometabolic disease}},
  url          = {{https://lup.lub.lu.se/search/files/86654317/John_Molvin_komplett.pdf}},
  year         = {{2020}},
}