Zoltán Preg

Dr. Zoltán Preg


Research Focus & Metrics

Academic Career Length

5Years (2022-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

View All Publications
Verified
Journal Article
Open access
PDF file
KNKinga-Ilona Nyulas
Kinga-Ilona Nyulas
ZSZsuzsánna Simon-Szabó
Zsuzsánna Simon-Szabó
SPSándor Pál
Sándor Pál
MFMárta Andrea Fodor
Márta Andrea Fodor
LDLóránd Dénes
Lóránd Dénes
ENEniko Nemes-Nagy
Eniko Nemes-Nagy
Hypertension is a highly prevalent population-level disease that represents an important risk factor for several cardiovascular complications and occupies a leading position in mortality statistics. Antihypertensive therapy includes a wide variety of drugs. Additionally, the potential antihypertensive and cardioprotective effects of several phytotherapy products have been evaluated, as these could also be a valuable therapeutic option for the prevention, improvement or treatment of hypertension and its complications. The present review includes an evaluation of the cardioprotective and antihypertensive effects of garlic, Aloe vera, green tea, Ginkgo biloba, berberine, ginseng, Nigella sativa, Apium graveolens, thyme, cinnamon and ginger, and their possible interactions with antihypertensive drugs. A literature search was undertaken via the PubMed, Google Scholar, Embase and Cochrane databases. Research articles, systematic reviews and meta-analyses published between 2010 and 2023, in the English, Hungarian, and Romanian languages were selected.

22 January 2023 in Life
Verified
Journal Article
Open access
PDF file
KNKinga-Ilona Nyulas
Kinga-Ilona Nyulas
MGMárta Germán-Salló
Márta Germán-Salló
ZFZita Fazakas
Zita Fazakas
ZPZoltán Preg
Zoltán Preg
TPTunde Pal
Tunde Pal
ENEniko Nemes-Nagy
Eniko Nemes-Nagy
(1) Background: Cognitive dysfunction is a major concern in hypertensive patients. Lifestyle habits and nutrition influence laboratory parameters, with an impact on clinical course. The objective of the study was to evaluate nutrition and lifestyle habits in hypertensive patients with/without cognitive dysfunction and establish correlations to laboratory parameters. Material and Methods: 50 patients admitted to the Cardiovascular Rehabilitation Clinic in Târgu Mureș were enrolled in this study between March–June 2021. We evaluated their cognitive function, and they filled in a questionnaire about lifestyle and nutrition. Biochemical blood tests were performed using a Konelab Prime 60i analyzer. IBM-SPSS22 and GraphPad InStat3 were used for statistics. Results: Mean age of hypertensive patients (n = 50) was 70.42 ± 4.82 (SD) years, half of them had cognitive dysfunction. Zinc deficiency was present in 74% of the subjects. The subgroup with cognitive dysfunction had significantly higher BMI (p = 0.009) and microalbuminuria (p = 0.0479), as well as significantly lower magnesium intake (p = 0.032) and cholesterol intake (p = 0.022), compared to those with normal cognitive status. Conclusions: Nutrition is in a close relationship with laboratory parameters; significant differences (microalbuminuria, cholesterol intake, BMI, etc.) are present between hypertensive patients with/without cognitive dysfunction. A healthy diet is important for the maintenance of metabolic balance, the achievement of optimal body weight, and the prevention of complications.

Verified
Journal Article
Open access
PDF file
TPTunde Pal
Tunde Pal
BBBabaDragos-Florin Baba
BabaDragos-Florin Baba
ZPZoltán Preg
Zoltán Preg
ENEniko Nemes-Nagy
Eniko Nemes-Nagy
KNKinga-Ilona Nyulas
Kinga-Ilona Nyulas
MGMarta German-Sallo
Marta German-Sallo
Objectives: Our study investigated the inverse relationship between cognitive decline (CD) and the presence of documented atrial fibrillation (AFib), ischemic stroke, heart failure, lower extremity peripheral artery disease, and diabetes mellitus. Methods: We conducted a retrospective cross-sectional study between December 2016 and November 2019. A total of 469 patients were enrolled who underwent cognitive evaluation with three cognitive tests (Montreal Cognitive Assessment—MOCA, Mini-Mental State Examination—MMSE, and General Practitioner Assessment of Cognition—GPCOG). We used the standard cut-off values, and the optimal thresholds were obtained from the receiver operating characteristic curves. Results: The standard cut-off level of the MOCA (<26 points) was associated with the presence of AFib (OR: 1.83, 95% CI: 1.11–3.01) and the optimal cut-off level with <23 points with ischemic stroke (OR: 2.64, 95% CI: 1.47–4.74; p = 0.0011). The optimal cut-off value of the MMSE (<28 points) was associated with the presence of ischemic stroke (OR: 3.07, 95% CI: 1.56–6.07; p = 0.0012), AFib (OR: 1.65, 95% CI: 1.05–2.60; p = 0.0287), and peripheral artery disease (OR: 2.72, 95% CI: 1.38–5.36; p = 0.0039). GPCOG < 8 points were associated with ischemic stroke (OR: 2.18, 95% CI: 1.14–4.14; p = 0.0176) and heart failure (OR: 1.49, 95% CI: 1.01–2.21; p = 0.0430). Conclusions: Our research highlighted the broader utility of cognitive assessment. The MOCA and MMSE scores proved to be associated with documented AFib. Higher cognitive test results than the standard threshold for CD of the MMSE, GPCOG, and lower MOCA scores represented risk factors for the presence of previous ischemic stroke.

30 July 2025 in Healthcare
Verified
Journal Article
Open access
PDF file
TPTunde Pal
Tunde Pal
ZPZoltán Preg
Zoltán Preg
BBBabaDragos-Florin Baba
BabaDragos-Florin Baba
DBDalma Balint-Szentendrey
Dalma Balint-Szentendrey
APAttila Polgar
Attila Polgar
MGMarta German-Sallo
Marta German-Sallo
Background/Objectives: Psychosocial (PS) factors and cognitive dysfunction (CD) in patients with atrial fibrillation (AF) may negatively impact treatment compliance. The PS profile covers multiple psychological and socio-economic factors, although research is mostly limited to depression, anxiety, and work stress. This study assessed the prevalence of a broad range of PS factors in patients with AF and their relationship with cognitive decline. Methods: We retrospectively analyzed data from patients referred to a cardiovascular rehabilitation clinic between March 2017 and April 2023 who underwent standardized assessments of PS factors, cognition, and quality of life. Results: Of the 798 included patients, 230 (28.8%) had AF, with a mean age of 68.07 years (SD 9.60 years). Six of nine PS factors were present in more than half of the overall sample. Compared to non-AF patients, those with AF showed significantly higher levels of social isolation, depression, and hostility, whereas low socioeconomic status, family and work-related stress, and other mental disorders were more frequent in the non-AF group. CD was present in 67.4% of the total cohort and was more prevalent in AF patients with a higher PS burden. Patients with permanent AF reported the poorest health status. Conclusions: Integrating assessments of PS factors and cognition in cardiac rehabilitation is feasible and supports a more comprehensive, patient-centred model of care in AF.

1 December 2022 in Journal of Interdisciplinary Medicine
Verified
Journal Article
Open access
PDF file
KNKinga-Ilona Nyulas
Kinga-Ilona Nyulas
ZSZsuzsánna Simon-Szabó
Zsuzsánna Simon-Szabó
ZPZoltán Preg
Zoltán Preg
SPSándor Pál
Sándor Pál
ASArundhati Sharma
Arundhati Sharma
ENEniko Nemes-Nagy
Eniko Nemes-Nagy
Sciendo provides publishing services and solutions to academic and professional organizations and individual authors. We publish journals, books, conference proceedings and a variety of other publications.

1 July 2026 in Bulletin of Medical Sciences
Verified
Journal Article
Open access
PDF file
GHGotha Helga
Gotha Helga
ZPZoltán Preg
Zoltán Preg
Lifestyle-related risk factors, such as physical inactivity, unhealthy dietary habits, smoking, and alcohol consumption, play an important role in the development of chronic diseases, particularly cardiovascular diseases. However, there is limited up-to-date information available regarding the lifestyle characteristics of the adult population and the distribution of risk factors in Transylvania. The aim of this study was to assess the lifestyle characteristics of adults in Transylvania, with particular emphasis on body weight, dietary habits, physical activity, smoking, alcohol consumption, and sleep quality. The study was conducted as a cross-sectional questionnaire-based survey involving adults aged 18–60 years. Data collection was anonymous and based on self-report, and the results were analysed using descriptive statistical methods. Our findings indicate a considerable prevalence of overweight and obesity (38.0%), as well as a high prevalence of smoking (30.9%). Regular daily consumption of fruit (9.9%) and vegetables (20.1%) was relatively low. Sedentary behaviour was common, with 38.8% of respondents reporting more than 7 hours of sitting per day. Alcohol consumption was predominantly occasional, most commonly occurring a few times per month (75.8%). Poor or very poor sleep quality was reported by 20.1% of participants. These findings highlight the widespread presence of lifestyle-related risk factors among adults in the studied population and underscore the need for health promotion programmes and preventive interventions aimed at reducing the burden of chronic and cardiovascular diseases.