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6,600 result(s) for "Isotonic beverages"
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Genotoxic Effects of Chromium and Their Mixtures on the Selected Cell Lines
Cr(III) and Co(II) can be potentially toxic to cells and induce a number of morphological and biochemical changes. These metals are widely used in many industries and can cause environmental pollution. They are the components of dietary supplements, vitamin and mineral products, and energy drinks. Moreover, these metals are used in dentistry and orthopedics as components of implants. Data about the mechanism of genotoxic effects of Cr(III) and Co(II) are still incomplete. The aim of this study was to analyze the genotoxic effects of chromium(III) and cobalt(II) and their mixtures on two cell lines: mouse embryo fibroblast cell line BALB/3T3 and human hepatocellular carcinoma cell line G2 (HepG2). The BALB/3T3 and HepG2 cell lines were exposed to chromium chloride and cobalt chloride at concentrations ranging from 100 to 1400 µM. The genotoxicity assays used were the comet and micronucleus assays. On the basis of the results obtained from the first stage of the research, the concentrations of elements were selected in order to determine the interactions between them. The tested cell lines were treated with mixtures of the following compounds: chromium chloride at the concentration of 200 μM and cobalt chloride at the concentration of 1000 μM or chromium chloride at the concentration of 1000 μM and cobalt chloride at the concentration of 200 μM in the genotoxicity assays. This study shows that both cobalt(II) and chromium(III) cause genotoxic effects in the BALB/3T3 and HepG2 cell lines. A statistically significant increase in the percentage of comets was observed with increasing concentrations of Co(II) and Cr(III) compared to the control. A statistically significant induction of chromosomal aberrations was also observed in the micronucleus test. Moreover, chromium(III) at a concentration of 200 µM had a protective effect against the toxic concentration of cobalt(II) at a concentration of 1000 µM. The toxic effect of cobalt chloride and chromium chloride was confirmed in this study. Further research is needed on the genotoxic effects of cobalt(II) and chromium(III), especially due to the growing popularity of dietary supplements containing compounds of these metals and doubts as to the safety of their use.
Behavior of Phenolic Compounds During In Vitro Digestion of an Isotonic Beverage Enriched with Microencapsulated Habanero Pepper Leaf Extracts
The valorization of agro-industrial byproducts like Habanero pepper (Capsicum chinense Jacq.) leaves has gained attention due to their high polyphenol content and bioactivity. In this study, phenolic-rich extracts were obtained using ultrasound-assisted extraction with natural deep eutectic solvents (NADES). Extracts were microencapsulated with maltodextrin, guar gum, and modified starch and incorporated into an isotonic beverage. The bioaccessibility of total and individual polyphenols were assessed through in vitro digestion by simulating fasting and postprandial conditions. Under fasting conditions, the enriched isotonic beverage showed significantly higher total phenolic content (6.98 ± 0.03 mg GAE/100 mL) compared to the control isotonic beverage (5.02 ± 0.22 mg GAE/100 mL), representing a 39% increase. Rutin and quercetin remained detectable throughout digestion, with final concentrations of 1.24 ± 0.05 and 1.10 ± 0.10 mg/100 mL, respectively, in the enriched beverage under postprandial conditions. These findings confirm the protective effect of the encapsulation matrix and highlight NADES as promising solvents for sustainable extraction. This work supports the integration of polyphenol microencapsulated into functional beverages as a novel strategy for delivering bioactive compounds from Capsicum chinense by-products.
The Effect of Delivery Matrix on IBifidobacterium animalis/I subsp. Ilactis/I HN019 Survival through In Vitro Human Digestion
Bifidobacterium animalis subsp. lactis HN019 is a probiotic with several documented human health benefits. Interest in probiotics has led to the development of new formats that probiotics, including HN019, can be supplemented into. In this study, we looked at common HN019 formats such as frozen culture and freeze-dried powder as well as supplementing it into the following food matrices: yogurts (dairy, soy, and oat based), xanthan gum-based tablets, pulpless orange juice, whey sports drink, and dark chocolate (70% cocoa). In this work, our aim was to investigate whether the food matrix that carried HN019 via simulated human digestion (a dual model system mimicking both upper and lower gastrointestinal digestion) influenced probiotic delivery. To that end, we validated and used a real-time qPCR assay to detect HN019 after simulated digestion. In addition, we also measured the effect on a panel of metabolites. After simulated digestion, we were able to detect HN019 from all the matrices tested, and the observed changes to the metabolite profile were consistent with those expected from the food matrix used. In conclusion, this work suggests that the food matrix supplemented with HN019 did not interfere with delivery to the colon via simulated human digestion.
Eco-friendly spark-generated Co.sub.xO.sub.y nanoparticle-modified graphite screen-printed sensing surfaces for the determination of H.sub.2O.sub.2 in energy drinks
The modification of graphite screen-printed electrodes (SPEs) is reported using an eco-friendly and extremely fast method based on the direct cobalt pin electrode-to-SPE spark discharge at ambient conditions. This approach does not utilize any liquids or chemical templates, does not produce any waste, and allows the in-situ generation of Co.sub.xO.sub.y nanoparticles onto the electrode surface and the development of efficient electrocatalytic sensing surfaces for the determination of H.sub.2O.sub.2. Co-spark SPEs were characterized using scanning electron microscopy, energy-dispersive X-ray spectroscopy and x-ray photoelectron spectroscopy (XPS), revealing the formation of surface confined Co.sub.xO.sub.y nanoparticles and the diverse oxidation states of cobalt species. Co-spark SPEs were also characterized with cyclic voltammetry and electrochemical impedance spectroscopy. Redox transitions of the surface confined electrocatalysts are demonstrated by electrochemical polarization studies, showing the formation of different oxides (Co.sub.xO.sub.y), varying the XPS results. Amperometric measurements at 0.3 V vs. Ag/AgCl revealed a linear relationship between the current response and the concentration of H.sub.2O.sub.2 over the range 1 - 102 M, achieving a limit of detection (3[sigma]/m) of 0.6 M. The interference effect of various electroactive species was effectively addressed by employing dual measurements in the absence and presence of the enzyme catalase. The analytical utility of the method was evaluated in antioxidant rich real-world samples, such as energy drinks, demonstrating sufficient recovery. Graphical
The Dark Side of Energy Drinks: A Comprehensive Review of Their Impact on the Human Body
In recent years, the consumption of energy drinks by young adults and athletes has risen significantly, but concerns have been raised about the potential health risks associated with excessive consumption. These concerns include cardiovascular problems, nervous system disorders, and the potential for addiction. This review aims to examine the reported effects of acute or chronic abuse of energy drinks on human health. The analysis shows a significant prevalence of adverse effects, particularly on the cardiovascular and neurovegetative systems. In particular, the analysis identified nine cases of cardiac arrest, three of which were fatal. The aetiology of these adverse effects is attributed to the inherent neurostimulant properties of these beverages, of which caffeine is the predominant component. A comparison of documented effects in humans with experimental studies in animal models showed an overlap in results. This review highlights the need for greater rigour in the assessment of sudden cardiac death, particularly in young people, as legal substances such as energy drinks may be involved. We propose stricter limits on the consumption of these beverages than for caffeine, based on the evidence found and the data in the literature. This review also calls for the establishment of regulations governing the consumption of these products in view of their potential impact on human health.
Functional Role of Taurine in Aging and Cardiovascular Health: An Updated Overview
Taurine, a naturally occurring sulfur-containing amino acid, has attracted significant attention in recent years due to its potential health benefits. Found in various foods and often used in energy drinks and supplements, taurine has been studied extensively to understand its impact on human physiology. Determining its exact functional roles represents a complex and multifaceted topic. We provide an overview of the scientific literature and present an analysis of the effects of taurine on various aspects of human health, focusing on aging and cardiovascular pathophysiology, but also including athletic performance, metabolic regulation, and neurological function. Additionally, our report summarizes the current recommendations for taurine intake and addresses potential safety concerns. Evidence from both human and animal studies indicates that taurine may have beneficial cardiovascular effects, including blood pressure regulation, improved cardiac fitness, and enhanced vascular health. Its mechanisms of action and antioxidant properties make it also an intriguing candidate for potential anti-aging strategies.
Erosive Potential of Sports, Energy Drinks, and Isotonic Solutions on Athletes’ Teeth: A Systematic Review
Background/Objectives: Dental erosion occurs due to repeated contact between the teeth and acidic substances along with mechanical stress. Athletes are exposed to acids through the consumption of sports drinks, energy drinks, and isotonic solutions; they also undergo mechanical stress during training and competition, making them prone to a higher prevalence of dental erosion. Therefore, our aim was to determine the erosive potential of beverages consumed by athletes. Methods: We conducted a systematic review of 1466 articles found on nine search engines between 1997 and 2021. We included observational studies and clinical trials in English, Portuguese, and Spanish on beverage consumption in athletes of both genders. Results: A total of four studies involving 567 athletes from four countries were identified. The prevalence of dental erosion ranged from 19.4% to 100%, and the severity assessments showed that between 52.4% and 75.2% of athletes had enamel affected, and 24% to 57.1% had both enamel and dentin affected. Only one study found that the consumption of sports drinks by swimmers practicing in chlorinated pools doubles the risk of developing dental erosion. Bias was low in half of the studies. Conclusions: The available evidence suggests that the consumption of sports drinks alone is not associated with dental erosion. However, to establish more conclusive evidence on the erosive potential of sports drinks, energy drinks, and isotonic solutions on the oral health of athletes, more prospective cohort studies are needed. These studies should include a standardization of indices and variables to which athletes are subjected, including dietary and healthcare habits, oral conditions, and protective factors. Furthermore, a larger number of athletes must be included to establish more conclusive evidence on the erosive potential of sports drinks, energy drinks, and isotonic solutions on athletes’ oral health.
Color and Chemical Stability of 3D-Printed and Thermoformed Polyurethane-Based Aligners
The significant rise in the use of clear aligners for orthodontic treatment is attributed to their aesthetic appeal, enhancing patient appearance and self-confidence. The aim of this study is to evaluate the aligners’ response to common staining agents (coffee, black tea, Coca-Cola, and Red Bull) in color and chemical stability. Polyurethane-based thermoformed and 3D-printed aligners from four brands were exposed to common beverages to assess color change using a VITA Easyshade compact colorimeter after 24 h, 48 h, 72 h, and 7 days, as well as chemical stability using ATR-FTIR spectroscopy. The brand, beverage, and manufacturing method significantly influence color stability. ATR-FTIR analysis revealed compositional differences, with variations in response to beverage exposure affecting the integrity of polymer bonds. Color change analysis showed coffee as the most potent staining agent, particularly affecting Tera Harz TC85 aligners, while ClearCorrect aligners exhibited the least susceptibility. 3D-printed aligners showed a greater color change compared to thermoformed ones. Aligners with a PETG outer layer are more resistant to stains and chemical alterations than those made of polyurethane. Additionally, 3D-printed polyurethane aligners stain more than thermoformed ones. Therefore, PETG-layered aligners are a more reliable choice for maintaining the aesthetic integrity of aligners.