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Research on the markers of autoimmune response in multiple sclerosis (MS) is still of great importance. The aim of our study was the evaluation of plasma 20S constitutive proteasome, 20S immunoproteasome, and cathepsin S concentrations as potential biomarkers of a relapsing‐remitting type of MS (RRMS). Surface plasmon resonance imaging (SPRI) biosensors were used for the evaluation of protein concentrations. Plasma 20S constitutive proteasome, 20S immunoproteasome, and cathepsin S concentrations were significantly higher in RRMS patients compared to the control group. All three parameters were characterized by excellent usefulness in differentiating MS patients from healthy individuals (AUC equal to or close to 1.000). The plasma concentration of analyzed parameters was not correlated with severity of disability in the course of RRMS (EDSS value), the number of years from the first MS symptoms, the number of years from MS diagnosis, or the number of relapses within the 24‐month observational period. Our study has shown that plasma concentrations of 20S constitutive proteasome, 20S immunoproteasome, and cathepsin S have promising potential in differentiating RRMS patients from healthy individuals. All of the analyzed parameters were found to be independent of the time of MS relapse and the severity of neurological symptoms. Hence, their potential as highly sensitive and independent circulating markers of RRMS suggests a stronger association with immunological activity (inflammatory processes) than with the severity of the disease. [ABSTRACT FROM AUTHOR]

The choices of food products and their nutritional value have a significant impact on nutritional status and body composition parameters. Popular and low-cost indicators of nutritional status, such as BMI, may not reflect the actual condition of the body. The aim of the study was to assess the consumption of energy as well as selected nutrients, such as protein, fats, carbohydrates, unsaturated fatty acids, lactose, starch, and dietary fiber, and to evaluate body mass index (BMI) and the parameters of the body composition among young women. Next, correlations were made between these nutrients and the parameters, such as percent body fat (PBF), visceral fat area (VFA), and fitness score (FS). The study group included 478 young women. To assess their consumption, the participants completed 72 h dietary interviews. In addition, the participants had a body composition analysis performed by bioelectric impedance technology by the InBody 720 Body Composition Analyzer (InBody, South Korea). The average energy value of the diets was about 1480 kcal. Most diets contained adequate portions of protein, fat, and carbohydrates. The diets were deficient in terms of unsaturated fatty acids and fiber. We showed that up to 37% of women with normal BMI had excess body fat. Moreover, the % energy from plant protein consumption negatively correlated with PBF and BMI (r = −0.10, p = 0.029, r = −0.10, p = 0.037, respectively) and dietary fiber with PBF, BMI, VFA, and FS (r = −0.17, p = 0.0003, r = −0.12, p = 0.01, r = −0.18, p = 0.0001, r = 0.09, p = 0.041, respectively). Education on the proper consumption of basic nutrients, including plant-based protein and dietary fiber, seems to be essential in preventing overweight and obesity. [ABSTRACT FROM AUTHOR]

Introduction: Although much is known about cytokines and adhesion molecules during an active course of multiple sclerosis (MS), there is limited information about their serum levels during remission. Objective: This study aimed to (1) compare peripheral levels of tumor necrosis factor-α (TNF-α), soluble interleukin-2 receptor α (sIL-2Rα), soluble intercellular adhesion molecule-1 (sICAM-1), and soluble E-selectin (sE-selectin) in MS patients during clinical remission with those of healthy controls and (2) explore possible relationships between the levels of these cytokines and adhesion molecules and neurological impairment. Methods: Initially, 92 patients with relapsing-remitting multiple sclerosis (RRMS) who were in clinical remission and 30 healthy controls were recruited for this study. The severity of neurological impairment was assessed with the Expanded Disability Status Scale (EDSS). Serum concentrations of TNF-α, sIL-2Rα, sICAM-1, and sE-selectin were determined using the sandwich enzyme-linked immunosorbent (ELISA) technique and compared between patients and controls. In a subset of RRMS patients (n = 67), the levels of these cytokines and adhesion molecules were compared between subgroups of patients based on scores on the EDSS subscales, which measure disability level for specific neurological functions. Results: The MS patients' TNF-α, sICAM-1, and sE-selectin levels were markedly lower than those of the controls, while their sIL-2Rα level was higher. The serum sICAM-1 concentration was positively associated with EDSS total score (ρ = .291, p = .017) as well as with the EDSS pyramidal (ρ = .267, p = .029) and cerebellar subscores (ρ = .303, p = .013). In the patients with cerebellar deficits and severe brain stem dysfunction, sICAM-1 levels were upregulated. Conclusion: Although a decreased sICAM-1 concentration was observed in RRMS patients in remission as compared to healthy controls, sICAM-1 seemed to reflect neurological impairment and clinical disability. These data suggest that increasing serum sICAM-1 levels may be associated with progression of cerebellar or brain stem perturbations. However, further studies are required to confirm these findings in a larger population of RRMS patients. [ABSTRACT FROM AUTHOR]

Introduction: Cigarette smoking is one of the most common habits of the modern world. According to a NATPOL PLU study, every third adult Pole is dependent on nicotine. Tobacco smoke contains about 5,000 components, of which over 1,000 are very toxic chemical substances (3,4-benzopyrene, heavy metals, free radicals, hydrogen cyanide, nitrogen oxides and N-nitrosamines). Exposure to tobacco smoke is an example of a complex, with a significant number of interactions., The Aim of the Study: To assess the concentration of copper in the urine of smokers. Based on the results, an attempt was made to determine whether smoking can affect the level of copper in the body., Material and Methods: The study involved 170 healthy volunteers, 99 smokers and 71 non-smokers (control group). The age of patients in both groups were in the range of 20-60 years. The mean age for men and women was 41 years. The average length of cigarette smoking was 18 years for women and 21 years for men, and the number of cigarettes smoked 1-40 ⁄ 24. The urine concentrations of Cu were determined by atomic absorption spectrometry (AAS) and serum creatinine kinetic method using a set of BIOLAB. Cu concentration in urine was expressed in mg / g creatinine., Results: Smokers were found to have reduced levels of copper in the urine, depending on sex, age and brand of cigarettes. In male smokers, copper concentration in the urine was dependent on age and time of smoking, whereas among women this relationship was not observed., Conclusions: Cigarette smoking significantly influences the level of copper in the urine. Both female and male smokers showed reduced levels of copper in the urine, which may indicate its increased accumulation in the body. Excessive accumulation of copper is very dangerous since it may exhibit toxic effects towards many organs and systems.

Introduction: Cigarette smoking is one of the most common habits of the modern world. The World Health Organization (WHO) showed that about 30% of the world's population over the age of 15 smoked cigarettes. That gives the number of 1.1 billion smokers. It is known that the habit of smoking is a serious risk to human health and life. Cigarette smoke induces the formation of reactive oxygen species (ROS). ROS can cause direct damage of DNA chain and leads to the mutagenic and carcinogenic effect., The Aim of the Study: To evaluate the concentration of 8-hydroxy-2'-deoxyguanosine (8-OHdG) in the urine of smokers. Based on the obtained results an attempt to determine whether the concentration of 8-OH-dG in the urine can be an indicator of genotoxicity of tobacco smoke., Material and Methods: The study was conducted in 83 healthy volunteers, 63 smokers and 20 non-smokers (control group). The age of patients in both groups were in the range 20-60 years. Average age of women and men in the control group and the test group was 34 years. Duration of smoking was 1-30 years, the number of cigarettes smoked from 1 to over 20 per day. In the urine the concentration of 8-OH-dG was determined using Bioxytech® 8-OH-dG-EIA™Kit (manufactured by OXIS International, Inc., Portland, USA) and the concentration of creatinine using in vitro diagnostic kit BIOLABO. The concentration of 8-OHdG in urine was expressed in ng/g creatinine., Results: More than 3-fold increase in the concentration of 8-OHdG in the urine of smokers was found. The increase in the concentration of 8-OHdG in the urine depended on age, the amount of smoked cigarettes per 24 hours, duration of smoking and cigarette brands., Conclusions: The increase in the concentration of 8-OHdG in the urine of smokers, both women and men indicates DNA damage and the genotoxicity action of cigarette smoke. According to our previously conducted studies and examinations of other authors, it can be suggested that the concentration of 8-OHdG in urine may be considered as the sensitive and specific marker of oxidative DNA damage.