Publications by authors named "Anna Michnik"

The impact of participation in the ultramarathon on the health and mental and physical condition is very complex. Undoubtedly, exercise brings many benefits but also involves health risks. Especially such an extreme effort as the one associated with finishing the ultramarathon run, can be dangerous to the health of the runner.

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The influence of a series of ten sauna baths (MPHA) on thermophysiological and selected hematological responses in 14 elite cross-country skiers to a submaximal endurance exercise test performed under thermoneutral environmental conditions was studied. Thermal and physiological variables were measured before and after the exercise test, whereas selected hematological indices were studied before, immediately after, and during recovery after a run, before (T1) and after sauna baths (T2). MPHA did not influence the baseline internal, body, and skin temperatures.

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Objectives: There is a growing body of evidence supporting the role of whole-body cryostimulation (WBC) and sauna - bathing as treatments for relaxation, mental well-being and several health problems. Despite their polar opposite temperatures, both of these treatments come with a dose of similar health benefits. This study is designed to compare effects of WBC and sauna application on the athletes' response to exercise.

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Article Synopsis
  • The study investigates how training in hypoxic conditions (low oxygen) affects athletes, specifically looking at serum fluorescence spectroscopy tools and biochemical assays to measure this adaptation.
  • Six resistance-trained male participants performed barbell squats in different levels of hypoxia, revealing that tyrosine fluorescence intensity is very sensitive to strength efforts while tryptophan levels are more affected by high altitude.
  • Significant changes in serum fluorescence were noted at 3000 m ASL and 5000 m ASL, indicating improved adaptation to low oxygen conditions at higher altitudes, suggesting that fluorescence spectroscopy could be a valuable method to analyze athletes' responses to hypoxia, although further research is needed.
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Chemotherapy is a primary treatment for the metastatic lung cancer patients. To select the most effective combination of drugs, we need an efficient way of assessing tumor response. Here, we showed that differential scanning calorimetry (DSC) analysis of blood serum proteins could reveal the patient response to the treatment.

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Autofluorescence of the mandible and femur bones taken from newborn rats (7-, 14- and 28-day old) was studied. Endogenous fluorophores were excited with 231 nm, 291 nm, 340 nm and 360 nm wavelengths. Modifications in content and microenvironment of both noncolagenous and collagenous constituents of bone tissue as well as metabolic coenzymes during the bone formation with age were reflected in fluorescence emission spectra.

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Fish otoliths are calcium carbonate biominerals responsible for gravity sensing and the perception of sound. The otoliths formation is controlled by Starmaker (Stm), a protein which belongs to a class of intrinsically disordered proteins. Here, we utilized analytical ultracentrifugation along with Ferguson's analysis of the electrophoretic data to demonstrate that Stm exists in solution as a monomer.

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The study of the influence of UVC-254 nm radiation on spectroscopic and calorimetric properties of human serum albumin in aqueous solutions was conducted. This radiation did not only accelerate aging of albumin solutions but also caused the other qualitative changes. The dose dependent effect on conformational restructuring and thermal stability of albumin for exposure periods from 10 to 60 min was shown.

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Purpose: The aim of this study was to detect the non-neoplastic white-matter changes vs. time after irradiation using 1H nuclear magnetic resonance (NMR) spectroscopy in vivo.

Methods And Materials: A total of 394 1H MR spectra were acquired from 100 patients (age 19-74 years; mean and median age, 43 years) before and during 2 years after radiation therapy (the mean absorbed doses calculated for the averaged spectroscopy voxels are similar and close to 20 Gy).

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A study of thermal denaturation of human haemoglobin A0 (HbA0) and methaemoglobin (mHb) was carried out by differential scanning calorimetry. DSC haemoglobin profiles were scan rate dependent and only partly reversible. Thermal unfolding of protein was analysed with the use of both equilibrium thermodynamic and kinetic approaches.

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