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Precision Medicine and Precision Nursing: The Era of Biomarkers and Precision Health

Authors Ielapi N, Andreucci M, Licastro N, Faga T, Grande R, Buffone G, Mellace S, Sapienza P, Serra R

Received 6 October 2020

Accepted for publication 2 December 2020

Published 31 December 2020 Volume 2020:13 Pages 1705—1711

DOI https://doi.org/10.2147/IJGM.S285262

Checked for plagiarism Yes

Review by Single anonymous peer review

Peer reviewer comments 3

Editor who approved publication: Dr Scott Fraser

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Nicola Ielapi,1,2,* Michele Andreucci,3,* Noemi Licastro,1,4 Teresa Faga,3 Raffaele Grande,5 Gianluca Buffone,6 Sabrina Mellace,7 Paolo Sapienza,5 Raffaele Serra1,4

1Interuniversity Center of Phlebolymphology (CIFL), International Research and Educational Program in Clinical and Experimental Biotechnology, Department of Surgical and Medical Sciences, Magna Graecia University of Catanzaro, Catanzaro, Italy; 2Department of Public Health and Infectious Disease, “Sapienza” University of Rome, Rome, Italy; 3Department of Health Sciences, Magna Graecia University of Catanzaro, Catanzaro, Italy; 4Department of Medical and Surgical Sciences, Magna Graecia University of Catanzaro, Catanzaro, Italy; 5Department of Surgery “P. Valdoni”, “Sapienza” University of Rome, Rome, Italy; 6Department of Vascular Surgery, Health Agency of Trento, Trento, Italy; 7Department of Patient’s Service, Civic Health Agency of Trento, Trento, Italy

*These authors contributed equally to this work

Correspondence: Raffaele Serra
Interuniversity Center of Phlebolymphology (CIFL), International Research and Educational Program in Clinical and Experimental Biotechnology, Department of Surgical and Medical Sciences, Magna Graecia University of Catanzaro, Viale Europa, Catanzaro 88100, Italy
Tel +3909613647380
Email [email protected]

Abstract: Precision health, by means of the support of precision medicine and precision nursing, is able to support clinical decision making in order to tailor optimal health-care decisions, around the individual characteristics of patients. The operational arm of precision health is represented by the use of biomarkers that can give useful information about disease susceptibility, exposure, evolution and response to treatment. Omics, imaging and clinical biomarkers are actually studied for their ability to positively impact health-care management. In this article, we try to address the role of biomarkers in the context of modern medicine and nursing with the view of improving patients care.

Keywords: precision medicine, precision nursing, biomarkers, precision health, evidence based medicine, evidence based nursing

Introduction

The term precision medicine (PM) refers to the tailoring of medical management to the individual traits of every single patient, in order to lead health-care management toward the most effective diagnostic, and treatment options for patients, and therefore, improving care quality and disease management.1 Nursing clinical practice models are also evolving through individual-centered clinical decision making, and in order to reflect this new era, they are encountering the methodology of precision nursing (PN) that is able to target patients’ needs-based nursing care.2 PM and PN are deeply related in the context of precision health (PH), which considers several biological markers, or biomarkers, such as “omics”, with other factors such as lifestyle, social characteristics, economic issues, cultural traits, and environmental factors, in order to have information on disease susceptibility, exposure, trait, evolution, and response to treatment.3,4 In this context, biomarkers are the operational arm of PH, and the most updated information of these factors will be discussed in the present review.

Search Strategy

Eligible studies, in order to be selected for our review, were searched using the Cochrane Central Register of Controlled Trials, Clinical Trials.gov, MEDLINE, Embase, and the Cumulative Index to Nursing and Allied Health Literature (CINAHL) Plus. We used a combination of keywords to identify relevant studies. The MEDLINE search strategy below was also adapted as appropriate for other databases: (Precision Medicine) OR (Precision Nursing) OR (Precision Health) OR (Biomarkers) OR (Omics). The last search was run on September 30, 2020. In addition, in order to search databases, we examined trials registries and we checked reference lists.

Results

The main findings of the review search are reported below and deal with omics, imaging biomarkers, clinical biomarkers, precision medicine, precision nursing, and examples of clinical application of biomarkers.

Omics

The term omics refers to several disciplines in biomedical sciences that ends with -omics, such as genomics, transcriptomics, proteomics, and metabolomics. The object of the study of these disciplines ends with –ome, such as genome, transcriptome, proteome and metabolome. Genomics focuses on the composition, function, modification, mapping, and editing of genomes. Transcriptomics studies all the RNA molecules within a cell, otherwise known as the transcriptome. Proteomics explores all the proteins (proteome) in a cell, tissue or organism, and metabolomics is a field of research that focuses on the chemical processes undergone by metabolites that are the end product of cellular processes (metabolome).5

In the context of genomics, clinicians may explore patients’ genetic information through several tests that have two main elements: a technical element that focuses on identifying which variants the patient shows; and an interpretive element in which the importance of identified variants are evaluated from a clinical point of view in order to manage diseases.6,7

Clinical issues that cannot be assessed at the genomics analysis can be evaluated in the transcriptomics analysis. In this way, if these alterations have pathogenetic importance, they could be identified more precisely in order to reflect appropriate treatments. In particular, the transcriptomics supports and complements the genomics evaluation, thus implementing genomics and proteomics in the precision health setting. Moreover, transcriptome analysis, will consider several strategies of analysis, depending on whether the evaluation refers to a single gene (or a small group of genes) or all transcripts of a cell, tissue or organism.8

The proteome is quite variable, and differs between cells in a tissue or organism, and changes also during time in response to several endogenous or exogenous factors or stimuli. Proteomics uses not only mass spectrometry, but also other highly sensitive methodologies, such as biosensors, microarrays, nuclear magnetic resonance, X-ray crystallography, as well as complex bioinformatic analysis.9

The aim of metabolomics is to provide detailed characterization of metabolic phenotypes in order to improve the effect of precision medicine at multiple levels, such as the characterization of metabolic alterations that refer to a specific disease, the discovery of new therapeutics target, and the possibility either to diagnose disease or monitor activity of treatments. Moreover, unlike genomics and proteomics analysis, metabolomics presents a significant level of complexity, because it aims to analyze molecules that have highly heterogeneous physical properties and also with diversity of technologies used.10

Imaging Biomarkers

The important development in digital imaging, that nowadays is able to produce high-quality and signal-controlled medical images, generated a broad range of valuable information related to the radiology area. Recently, the impressive advances in the field of medical imaging technologies have made it possible to obtain anatomic, functional, metabolic, elements from images acquired in daily routine clinical practice. Moreover, the important development of computing knowledge allows effective signal modeling and dedicated data processing, that generate a large amount of qualitative and quantitative information that could be finalized in the context of precision health. Modern imaging biomarkers are thus able to be integrated into clinical practice and are characterized by high reliability, technical reproducibility, high precision, and adequate appropriateness.11,12 Imaging biomarkers, derived from radiological technologies, such as computerized tomography (CT), electrocardiography (ECG), magnetic resonance (MR), perfusion computerized tomography (pCT), positron emission tomography (PET), ultrasound (US) and many others, are able to inform clinicians on disease detection, characterization and treatment response and quantitative analysis may have good potential to provide physicians with effective medical decision making support, during the management of patients.13

Clinical Biomarkers

Clinical biomarkers refer to a wide subcategory of specific medical signs that represent objective indications of patient’s clinical state which can be measured and or assessed accurately during medical physical examination.14 For example, a pathognomonic sign is a key clinical element, whose presence indicates the existence in a patient of specific disease without any doubt (high specificity), even if the absence of the aforementioned sign cannot definitely exclude the possibility of the disease (low sensibility), and this is a clear limitation of the sign; however, as the presence of a pathognomonic sign is able confirm the disease with certainty, for this reason, a pathognomonic sign serves as a clinical biomarker.15 In certain conditions, even the presence of a disease may serve as a clinical biomarker for predicting a more severe clinical course of a concomitant disease. For example, it is known that the presence of cardiovascular disease in COVID-19 patients may influence negatively the clinical outcomes of these patients with poorer prognosis.16

Precision Medicine

Precision medicine describes a standard for health-care delivery strictly related to data, analytics, and information. Precision medicine, and all the advanced technologies that support it, focuses on patient’s clinical needs and characteristics, digital health, omics, and other biomedical technologies, data sharing and data science to be clinically effective and successful. A precision medicine environment ideally links patients, providers, clinical laboratories, researchers, and physicians.1 The development and use of precision medicine have impacted many diseases and specifically pinpointed several treatments, supporting also technological developments, improving global human health and reducing health care costs.17

Precision Nursing

Nurses have a pivotal role in health care, promoting, protecting, and optimizing health through intimately interconnected and multidisciplinary care of individuals and their families. Integrating biomarkers into nursing research and practice has caused an important advance in nursing science across health-care sciences and caregiving research. Nurses can now use biomarkers to objectively identify health risks and identify more precisely the various mechanisms responsible of adverse clinical conditions, and, in this way, modern nurses may effectively develop, target, and finalize personalized interventions to improve the management of patients. In particular, nursing roles are pivotal in supporting precision health, including precision delivery of medications according to modern concepts of pharmacogenetics. In this way, nurses may involve patients and families in health education, also on the meaning and the utility of omics tests, thus supporting adequate care delivery, and collecting also critical feedback and insight on novel technological applications used during clinical and caring pathways.3,18,19

Examples of Clinical Application of Biomarkers

According to what we wrote in the previous paragraphs, it is not surprising that over 900,000 citations are associated with a MEDLINE search on biomarkers. Cardiovascular disease, cancer and, more in general, chronic diseases, that are also linked to human aging, have been considered optimal fields to study the role of several biomarkers.20

Considering the aging process, we can follow consecutive clinical manifestations related to the same pathological process. For example, the studies by Serra et al showed how varicocele in a patient can predict the onset of inguinal hernia and chronic venous disease (CVD) in a more advanced age relating also this progression with extracellular matrix (ECM) alterations due to abnormal matrix metalloproteinase (MMP) activity that can even be measured in the blood as well as pathological tissues.21,22 MMP family and other metalloproteinase families, such as a disintegrin and metalloproteinase (ADAM), a disintegrin and metalloproteinase with thrombospondin motifs (ADAMTS) regulating ECM composition, homeostasis, and functions, play major roles in cardiovascular disease onset and progression and some members of these families can be effectively measured in human blood and tissues samples in order to give clinical information in several conditions. Moreover, tissue inhibitors of metalloproteinases (TIMPs) that function by forming a one-to-one complex with target metalloproteinases, are able to irreversibly inactivate them by binding to their catalytic site, and when TIMPs are dysregulated, metalloproteinases may be hyperactivated determining EMC alterations. Even TIMPs activity may be measured in human blood and tissues.23–34

Sometimes, a biomarker, such as hyperhomocysteinemia, classically related to acute conditions like venous thromboembolism, in certain circumstances may even predict the onset of chronic conditions, such as chronic venous leg ulcers.35

In contrast, in acute clinical settings as those of intensive care units, some biomarkers, such as hypoalbuminemia detected at patient admission, may even predict the onset of pressure ulcers that can complicate a patient’s hospital stay.36,37

The detection of particular forms of biofilm in endovenous devices, such as central venous catheters, may serve as biomarkers predicting particular complications for the implantation and for the functioning of these devices.38

Chandler et al, in a prospective study conducted on middle-aged and older women, showed that some lipid biomarkers, such as circulating apo A-I and HDL, were inversely associated with risk of total cancer and lung cancer, whereas others lipid biomarkers, such as triglycerides and apo B-100, were positively associated, and HDL was inversely associated, with the risk of colorectal cancer, suggesting a probable effect of lipid metabolism in the onset of cancer.39

MMPs are upregulated at all stages of cancer, including the stage of metastasis, and MMP expression significantly increases at advanced cancer stages. Therefore, several strategies for MMP specific targeting, such as ECM degradation, MMP cleavage, MMP binding, and MMP-induced environmental changes, are currently fields of research activities.40 Moreover, MMP-9 expression seems to be related with metastasizing process, survival and recurrence rates, in patients with breast cancer.41

Mehri showed that blood gases, maximum consumed oxygen volume (VO2max), cytokines and oxidative stress evaluation may be very useful in nursing diagnosis in clinical practice.42

In the nursing area an accurate family health history must be collected by nurses, as this represent a key nursing action that can help identify the need for omics testing for various risk factor and disease conditions.3 For example, in oncology setting in the area of hereditary breast and ovarian cancer family history collected by nurses may serve to identify women with an increased risk for harmful genetic mutations. Women with positive screening results should receive genetic counseling and, if appropriate, relative genetic testing. In this context, in the US, the American Nurses Credentialing Center (ANCC) certification in Advanced Genetics Nursing is a new mechanism for documenting genomics competencies that are pivotal for preparing nurses to adequately use these clinical knowledges in health-care settings, in order to contribute to better health care for patients and their families.

Discussion

The main aim of PH is to plan disease prevention and health-care interventions considering patient’s variability, lifestyle, and omics profile.10,43

On the one hand, biomarkers used in PH may be disease-related to determine the risk of disease, to diagnose a disease, to monitor disease progression and to monitor complication. On the other hand, biomarkers may be intervention-related and may serve as predictors of treatment outcomes, such as those of surgical procedures and they may serve also for drug modulation, predicting and also monitoring drug toxicity.12

It is important that physicians and nurses particularly focus on advances in PM and PN in health care. In fact, the impact of biomarkers information and related advanced technology can potentially improve health care outcomes from the point of view of quality, and safety, and can also result in cost savings. Moreover, these goals depend on the optimization of technological resources that support also clinical data storage technology, including the electronic health records of health-care system. In fact, individual omics profile variations may inform the risk of a disease, in all ages and clinical context (including in the prenatal, newborn, infancy, adolescence, and adult ages). Moreover, omics assessment can also be used as a screening evaluation in order to better identify health conditions, improve medication selection, including therapies that may be designed specifically to impact the specific omics profile underlying a disease, and thus tailoring and globally optimizing the management of symptoms.7,44

Modern nursing benefit from the inclusion of biomarkers into care pathways, helping nurses to more efficiently administer tailored therapies and globally care for patients, especially those with frailty issues.19,45

Nowadays the profession of nursing is a great part, and also an important driving force of health care, and nurse researchers realize that PH is a priority for advancing nursing science as PH studies individual variability in personal and environmental patient’s own characteristics. In this context, lifestyle, existing comorbidities, cognitive and emotional factors, and frailty issues should be related to omics and other biomarkers. Successful utilization of PH requires interprofessional collaborations with a range of multidisciplinary elements and in this scenario, PN plays an essential role. Currently, nurses are appropriately prepared and qualified to conduct clinical and translational scientific studies, such as recruiting patients and monitoring health factors and symptoms in interventional settings, thus serving as strong advocates for patients, and their families. While the advent of PH and PN are an effective opportunity for nurses to advance nursing practice and nursing research through important and exclusive challenges in health-care interventions and health innovations, they also demand in the near future efforts in supporting more specific and dedicated educational pathways, specialized training, and updated knowledge of novel biomarkers in order to incorporate them effectively into daily nursing practice. Precision nursing actually needs longitudinal cohort studies in order to identify which interventions would promote the best health outcomes given patients’ particular omics features, together with lifestyle and environmental characteristics. Moreover, solid patient outcome measurement systems need to be investigated and validated in order to evaluate effective PN efficacy at several health care levels (health-care provider, clinic, hospital, home care).3,19,46 In this view, PM and PN follow the aims of PH that is a modern way of clinical thinking and caring patients, that is able to link the patient’s characteristics with the omics profile, and with the environmental profile (such as lifestyle, socioeconomic issues, etc) in order to improve strategies for disease prevention and treatment in a new context of holistic care (Figure 1).47

Figure 1 Elements of precision health.

Conclusion

Governments and National Health Systems have a central role to play in PH, and they have the task to turn the actual knowledge on biomarkers into evidence-based reality, supporting health systems and subsequent environmental changes. In fact, the implementation of PH will be used for more effective decision making in medicine and public health to improve quality of life.48

In conclusion, precision medicine and precision nursing, in the context of PH and among the current options to manage health, are the most innovative and effective tools that can be used to promote health, well-being, and to deliver optimal health care.

Funding

This research received no specific grant from any funding agency in the public, commercial or not-for-profit sectors.

Disclosure

The authors report no conflicts of interest in this work.

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