Publications by authors named "Goran Dujic"

Article Synopsis
  • Freediving is a sport that mixes aerobic (using oxygen) and anaerobic (not using oxygen) training, and this study looked at how different training helped both beginner and advanced freedivers improve their performance.
  • The study involved 26 freedivers, who trained for 5 months, measuring their abilities in various underwater and swimming tests.
  • Results showed that both beginner and elite freedivers improved in important skills, especially in dynamic apnea, which means holding your breath while swimming underwater.
View Article and Find Full Text PDF

The chronic effects of cannabidiol (CBD) supplementation on factors that could impact the quality of life (anxiety, sleeping quality, memory, etc.) are poorly explored. Hence, the aim of this study was to establish whether chronic CBD supplementation will improve self-reported outcomes related to quality of life.

View Article and Find Full Text PDF

The mammalian dive reflex, characterized by bradycardia and peripheral vasoconstriction, occurs in all mammals, including humans, in response to apnea. However, the dive reflex to a single, maximal, dry, dynamic apnea (DYN) and how it compares to a time-matched exercise control trial (EX) or dry static apnea (SA) has not been studied. We examined the hypotheses that, compared with EX and SA, the magnitude of the ) cardiovascular response and ) hematological response to DYN would be greater.

View Article and Find Full Text PDF

Aim: To determine the incidence of metopism in the modern and archaeological Croatian population.

Methods: A total of 800 specimens (454 modern multi-slice computed tomography [MSCT] scans and 346 dry archaeological skulls) were visually examined for metopic suture presence. The metopic suture was deemed complete when aligned nasion to bregma.

View Article and Find Full Text PDF

Breath-hold diving is explained as an activity that requires enduring muscle asphyxia and acidosis, high anaerobic capacity, and the tactic of the dive. Therefore, this study aimed to construct and validate tests that will mimic anaerobic processes in the specific media of freedivers. The sample of participants included 34 Croatian freedivers (average age: 26.

View Article and Find Full Text PDF

Due to cannabidiol's health benefits and absence of serious side effects, its use is constantly growing. This is a survey-based cross-sectional study that was conducted to determine Croatian pharmacists', physicians', and students' knowledge and attitudes about cannabidiol (CBD). Two questionnaires were created, one for students and the other for physicians and pharmacists.

View Article and Find Full Text PDF

The potential therapeutic benefits of cannabidiol (CBD) require further study. Here, we report a triple-blind (participant, investigator, and outcome assessor) placebo-controlled crossover study in which 62 hypertensive volunteers were randomly assigned to receive the recently developed DehydraTECH2.0 CBD formulation or a placebo.

View Article and Find Full Text PDF

HYPER-H21-4 was a randomized crossover trial that aimed to determine if cannabidiol (CBD), a non-intoxicating constituent of cannabis, has relevant effects on blood pressure and vascular health in patients with essential hypertension. In the present sub-analysis, we aimed to elucidate whether serum urotensin-II concentrations may reflect hemodynamic changes caused by oral supplementation with CBD. The sub-analysis of this randomized crossover study included 51 patients with mild to moderate hypertension that received CBD for five weeks, and placebo for five weeks.

View Article and Find Full Text PDF

Recent data indicate that cannabidiol (CBD), a nonintoxicating constituent of cannabis, is involved in several aspects of cardiovascular regulation, including blood pressure (BP). However, the impact of chronic CBD administration on 24-h BP and vascular health has not been previously examined in patients with hypertension. The primary aim of this randomized, triple-blind, placebo-controlled, and crossover study was to examine the influence of chronic CBD on 24-h ambulatory BP and arterial stiffness in hypertensive patients.

View Article and Find Full Text PDF

It has been well established that diabetes mellitus (DM) is considered as a core risk factor for the development of cardiovascular diseases. However, what is less appreciated is the fact that DM may affect cardiac function irrespective of cardiac pathologies to which it contributes, such as coronary artery disease and hypertension. Although echocardiography provides accurate and reproducible diagnostic and prognostic data in patients with DM, its use in these patients is still underappreciated, resulting in progression of DM-related heart failure in many patients.

View Article and Find Full Text PDF
Article Synopsis
  • The study investigated whether cannabidiol (CBD) can lower blood pressure in hypertensive patients through a trial called HYPER-H21-4, which was randomized, placebo-controlled, and included a 5-week CBD administration.
  • Researchers focused on catestatin, a peptide linked to blood pressure regulation, and found that CBD significantly reduced serum catestatin levels compared to a placebo.
  • The results indicated a correlation between lower catestatin levels and reduced mean arterial pressure, suggesting that CBD's blood pressure-lowering effects may involve the sympatho-chromaffin system, though more research is needed to confirm these findings.
View Article and Find Full Text PDF
Article Synopsis
  • The study investigates the role of catestatin, a neuroendocrine peptide, in primary hypertension (PH) by comparing serum levels in PH patients and healthy controls.
  • Results show that patients with PH have significantly higher serum catestatin levels than healthy individuals, particularly among those not receiving treatment.
  • Catestatin levels were found to correlate positively with mean arterial pressure and indicators of arterial stiffness, highlighting its potential significance in the pathophysiology of hypertension.
View Article and Find Full Text PDF

Accumulating data from both human and animal studies suggest that cannabidiol (CBD) may be associated with improved cardiovascular function, markedly with regard to reduction in blood pressure and improved endothelial function. However, there is a lack of randomized studies to support these notions, especially in at-risk populations. The principal aim of this randomized, placebo-controlled, and crossover study is to examine the influence of chronic CBD administration on 24-h blood pressure in individuals with mild or moderate hypertension who are either untreated or receiving standard care therapy.

View Article and Find Full Text PDF