Autor: Majewski, M. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Dietary magnesium intake in a population of oncological patients in Poland
Autorzy:: Majewski, M.
Kucharczyk, E.
Powiązania:: https://bibliotekanauki.pl/articles/14154.pdf
Data publikacji:: 2018
Wydawca:: Uniwersytet Warmińsko-Mazurski w Olsztynie / Polskie Towarzystwo Magnezologiczne im. Prof. Juliana Aleksandrowicza
Źródło:: Journal of Elementology; 2018, 23, 1
1644-2296
Pojawia się w:: Journal of Elementology
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Copper nanoparticles enhance vascular contraction induced by prostaglandin F2-alpha and decrease the blood plasma Cu/Zn ratio in Wistar rats
Autorzy:: Majewski, M.
Ognik, K.
Juskiewicz, J.
Powiązania:: https://bibliotekanauki.pl/articles/13760.pdf
Data publikacji:: 2019
Wydawca:: Uniwersytet Warmińsko-Mazurski w Olsztynie / Polskie Towarzystwo Magnezologiczne im. Prof. Juliana Aleksandrowicza
Źródło:: Journal of Elementology; 2019, 24, 3
1644-2296
Pojawia się w:: Journal of Elementology
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Variations of niacin content with regard to carbohydrates in energy-rich diets of elite European athletes and their relation with dietary RDA
Autorzy:: Majewski, M.
Kozlowska, A.
Thoene, M.
Lebiedzinska, A.
Powiązania:: https://bibliotekanauki.pl/articles/14498.pdf
Data publikacji:: 2016
Wydawca:: Uniwersytet Warmińsko-Mazurski w Olsztynie / Polskie Towarzystwo Magnezologiczne im. Prof. Juliana Aleksandrowicza
Opis:: In sport, proper nutrition exerts a significant impact on sporting results. Scientific data about the nutritional habits of elite European athletes is limited and therefore it is unclear whether athletes are following nutritional recommendations and maintaining proper diets. The aim of this study was to determine the content of niacin in the daily diets of elite European athletes with regard to calories and carbohydrate intake, and its relation to dietary RDA. The study included 64 adult athletes of both sexes from sport teams in five European countries. A 24-hour dietary survey was developed based on an “Album of photographs of meals and food products”. A microbiologically based method was used for the niacin determination, with enzymatic hydrolysis by a 40 mg mixture of papain and diastase run on every analysed 2 g sample (in accordance with the AOAC). The carbohydrate intake of each subject was obtained with a “Carbohydrate count book”, and the energy value determined using a bomb calorimeter. Among the group of elite European athletes surveyed, reconstructed meals provided an average of 28.5 mg of niacin in women, and 22.4 mg in men. The FAO and the WHO recommend daily allowances for niacin in persons over 19 years of age is 15.2 mg 2300 kcal-1 for women and 21.1 mg 3200 kcal-1 for men. The diets analysed did cover the recommendations in 53% of all diets (54% in women, and 50% in men) but in the endurance sports, which require a high carbohydrate intake, niacin demand may increase up to 23.8 mg and 30.4 mg, respectively. Therefore, the average diet is not sufficient. Only 15% of all diets covered the increased niacin recommendations (27% in group of women, and 0% in men). This was proven to be strongly insufficient as the demand for niacin increases significantly with increased caloric intake which may lead to a niacin deficiency. Thus, in such cases niacin supplementation may be justified. Also, the results indicate that daily nutrition does not provide a sufficient amount of energy for athletes. The daily food intake of European sport team members did not fully cover the RDA requirements for niacin due to high daily carbohydrate consumption, and low caloric intake. Thus, daily diets should be better organised to meet the needs of athletes.
Źródło:: Journal of Elementology; 2016, 21, 3
1644-2296
Pojawia się w:: Journal of Elementology
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Influence of fresh garlic (Allium sativum L.) juice on zebrafish (Danio rerio) embryos developmental effects
Autorzy:: Majewski, M.
Kasica, N.
Jakubowski, P.
Podlasz, P.
Powiązania:: https://bibliotekanauki.pl/articles/963946.pdf
Data publikacji:: 2017
Wydawca:: Uniwersytet Warmińsko-Mazurski w Olsztynie / Polskie Towarzystwo Magnezologiczne im. Prof. Juliana Aleksandrowicza
Opis:: A higher sensitivity and the cytotoxic effects of garlic have been previously reported on culture cells. No studies, however, have investigated the developmental toxicity of fresh garlic in zebrafish model. In this study freshly made garlic juice, which chemically is a combination of sulphur containing compounds, was evaluated to investigate the developmental toxicity during a 5-day assay using zebrafish embryos, starting from 2 h post fertilization. The results showed that toxicity endpoints such as the hatching rate, survival rate, malformation rate and growth rate had a significant dose-response relationship with increasing concentrations of garlic juice. The average hatching rate and time to hatch of zebrafish exposed to lower concentrations (0.001% and less) were significantly increased around 48-60 h of treatment (P < 0.05), strongly emphasizing the acceleration of hatchability caused by garlic juice. Mortality was also increased with exposure to garlic, exhibiting the maximal toxicity after 12 h of exposure to the concentration of 0.08%. A significant reduction in the heart rate by 35.5% was recorded due to the higher concentrations of juice (above 0.01%) starting form 36-hour exposure (P < 0.05). Growth retardation, pericardial oedema with heart malformations, deformity of yolk, lack of pigmentation and body malformation have been noticed at the concentration of 0.03% starting from 48 h of exposure. No severe malformations in any of the experimental zebrafish were produced at concentrations less than 0.01% of garlic juice. The results indicate that developing zebrafish are sensitive to garlic juice and further studies are required to investigate the molecular basis of the observed effects that garlic constituents exert upon aquatic vertebrates.
Źródło:: Journal of Elementology; 2017, 22, 2
1644-2296
Pojawia się w:: Journal of Elementology
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Influence of fresh garlic (Allium sativum L.) juice on zebrafish (Danio rerio) embryos developmental effects
Autorzy:: Majewski, M.
Kasica, N.
Jakubowski, P.
Podlasz, P.
Powiązania:: https://bibliotekanauki.pl/articles/1190187.pdf
Data publikacji:: 2017
Wydawca:: Uniwersytet Warmińsko-Mazurski w Olsztynie / Polskie Towarzystwo Magnezologiczne im. Prof. Juliana Aleksandrowicza
Tematy:: Danio rerio
developmental toxicity
fresh garlic juice
Opis:: A higher sensitivity and the cytotoxic effects of garlic have been previously reported on culture cells. No studies, however, have investigated the developmental toxicity of fresh garlic in zebrafish model. In this study freshly made garlic juice, which chemically is a combination of sulphur containing compounds, was evaluated to investigate the developmental toxicity during a 5-day assay using zebrafish embryos, starting from 2 h post fertilization. The results showed that toxicity endpoints such as the hatching rate, survival rate, malformation rate and growth rate had a significant dose-response relationship with increasing concentrations of garlic juice. The average hatching rate and time to hatch of zebrafish exposed to lower concentrations (0.001% and less) were significantly increased around 48-60 h of treatment (P < 0.05), strongly emphasizing the acceleration of hatchability caused by garlic juice. Mortality was also increased with exposure to garlic, exhibiting the maximal toxicity after 12 h of exposure to the concentration of 0.08%. A significant reduction in the heart rate by 35.5% was recorded due to the higher concentrations of juice (above 0.01%) starting form 36-hour exposure (P < 0.05). Growth retardation, pericardial oedema with heart malformations, deformity of yolk, lack of pigmentation and body malformation have been noticed at the concentration of 0.03% starting from 48 h of exposure. No severe malformations in any of the experimental zebrafish were produced at concentrations less than 0.01% of garlic juice. The results indicate that developing zebrafish are sensitive to garlic juice and further studies are required to investigate the molecular basis of the observed effects that garlic constituents exert upon aquatic vertebrates.
Źródło:: Journal of Elementology; 2017, 22, 2; 475-486
1644-2296
Pojawia się w:: Journal of Elementology
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: Fresh garlic juice versus aged garlic extract. Determination of lethal concentration (LC20 and LC50) values on zebrafish (Danio rerio) embryos and larvae
Autorzy:: Majewski, M.
Kasica, N.
Jakubowski, P.
Lepczyńska, M.
Powiązania:: https://bibliotekanauki.pl/articles/962692.pdf
Data publikacji:: 2017
Wydawca:: Uniwersytet Warmińsko-Mazurski w Olsztynie / Polskie Towarzystwo Magnezologiczne im. Prof. Juliana Aleksandrowicza
Opis:: Developmental abnormalities due to fresh garlic (Allium sativum L.) juice exposure have been previously reported on zebrafish (Danio rerio) embryos. Freshly made garlic juice (FGJ) containing allicin as a main ingredient and aged garlic extract (AGE) containing mainly S-allyl-L-cysteine were evaluated to investigate the lethality during a 5-day assay using zebrafish embryos, starting from 2 hours post fertilization (hpf), in a static system at an garlic concentration range of 0.00001-0.1%. In addition, lethality comparison between embryos and 3 days of post fertilization (dpf) larvae was performed. The results indicate that the mortality rate is positively correlated to the concentration of FGJ. Lethal concentration for the 24-h LC20 and 24-h LC50 in zebrafish embryos exposure was determined as 0.034% and 0.021%. The corresponding values for larval forms were significantly higher, 0.081% and 0.073% (P < 0.01), suggesting a greater sensitivity of developing embryos to FGJ treatment, as well as no protection from an embryo’s chorion. Below the FGJ concentrations of 0.02% (for embryos) and 0.06% (for larvae), no increase in mortality was observed over the entire exposure time. The mortality of AGE-treated embryos did not differ significantly (P = 0.571) from the control regardless of exposure duration and AGE concentration. The overall results indicate that zebrafish embryos constitute a reliable model for testing the developmental toxicity of garlic, and that different types of garlic preparations have different pharmacologic properties.
Źródło:: Journal of Elementology; 2017, 22, 4
1644-2296
Pojawia się w:: Journal of Elementology
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:: Assessment of a threat of hypomagnesemia in patients with cancer, based on patients medication record and dietary questionnaire
Autorzy:: Majewski, M.
Kucharczyk, E.
Kask, W.
Lisieska-Żołnierczyk, S.
Lebiedzińska, A.
Powiązania:: https://bibliotekanauki.pl/articles/963951.pdf
Data publikacji:: 2017
Wydawca:: Uniwersytet Warmińsko-Mazurski w Olsztynie / Polskie Towarzystwo Magnezologiczne im. Prof. Juliana Aleksandrowicza
Opis:: Magnesium deficiency among oncological patients is a complex condition. Hypomagnesaemia is observed during anti-cancer chemotherapy and during treatment of certain co-existing disorders. Assessing the magnesium status is difficult, as serum levels have little correlation with the total body magnesium status. Thus, the aim of this study was to provide more recent data about possible causes of magnesium insufficiency among oncological patients with the focus on the health status, pharmacological treatment and intake of magnesium-rich food products. 380 oncological patients (304 reliable surveys) with concurrent chemotherapy, radiotherapy and surgery from the Clinical Department of Oncological Surgery, MSW Hospital, Olsztyn, Poland were reviewed retrospectively between January 2013 and April 2016. The mean magnesium dietary intake was 224 mg daily among women and 295 mg per day among men, which was found insufficient. Consumption of some food products rich in magnesium such as cacao, legumes, nuts and seeds was found to be scarce. Dietary supplementation of magnesium was also inadequate (3%). In addition, high daily consumption of coffee (67.1%) and strong tea (81.85%) was reported. Moreover, obesity (47.8%) together with gastrointestinal disorders such as diarrhoea and vomiting (52%) persisted, which may have further contributed to magnesium deficiency. Patient medication record has also revealed previous intake of some drugs that are implicated in the development of hypomagnesemia. Regular monitoring for enteritis and hypomagnesemia with timely intervention as well as inclusion of magnesium-rich food products in daily diet could help improve compliance, decrease the incidence of treatment interruptions and thereby help achieve the optimum treatment outcome.
Źródło:: Journal of Elementology; 2017, 22, 3
1644-2296
Pojawia się w:: Journal of Elementology
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 8.

Tytuł:: Evaluation of the time-stability of aortic rings in young Wistar rats during an eight-hour incubation period
Autorzy:: Majewski, M.
Lepczynska, M.
Dzika, E.
Grzegorzewski, W.
Markiewicz, W.
Mendel, M.
Chlopecka, M.
Powiązania:: https://bibliotekanauki.pl/articles/15178.pdf
Data publikacji:: 2019
Wydawca:: Uniwersytet Warmińsko-Mazurski w Olsztynie / Polskie Towarzystwo Magnezologiczne im. Prof. Juliana Aleksandrowicza
Źródło:: Journal of Elementology; 2019, 24, 2
1644-2296
Pojawia się w:: Journal of Elementology
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 9.

Tytuł:: Nutritional status, morphological and biochemical blood parameters in HIV-positive adults from northern Poland
Autorzy:: Lebiedzinska, A.
Majewski, M.
Waszkiewicz, M.
Maksymowicz-Jaroszuk, J.
Grzeszczuk, A.
Bierzynska, N.
Lemanska, M.
Jankowska, M.
Smiatacz, T.
Szefer, P.
Karczewski, J.K.
Powiązania:: https://bibliotekanauki.pl/articles/14855.pdf
Data publikacji:: 2018
Wydawca:: Uniwersytet Warmińsko-Mazurski w Olsztynie / Polskie Towarzystwo Magnezologiczne im. Prof. Juliana Aleksandrowicza
Źródło:: Journal of Elementology; 2018, 23, 3
1644-2296
Pojawia się w:: Journal of Elementology
Dostawca treści:: Biblioteka Nauki

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