Temat: Vitamin - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: The role of well-known antioxidant vitamins in the prevention of cadmium-induced toxicity
Autorzy:: Sitek, Agnieszka
Kozłowska, Lucyna
Powiązania:: https://bibliotekanauki.pl/articles/2085759.pdf
Data publikacji:: 2022-08-01
Wydawca:: Instytut Medycyny Pracy im. prof. dra Jerzego Nofera w Łodzi
Tematy:: vitamin A
β-carotene
vitamin E
vitamin C
oxidative stress
cadmium exposure
Opis:: Long-term exposure to cadmium (Cd) leads to the development of a number of conditions associated with liver and kidney damage, reproductive and cardiovascular disorders, in addition to visual impairment, blindness and hearing loss, among others. Cadmium has been classified as a human carcinogen by the International Agency for Research on Cancer. The toxicity of Cd is related to its pro-oxidant properties and the associated increase in oxidative stress. Antioxidant ingredients may be helpful in preventing the adverse effects of Cd. The effect of well-known antioxidant vitamins (E, C, A and β-carotene) in the prevention of Cd-induced toxicity is presented in this study. Numerous studies in animal models have shown that the effects of vitamins: E, C, A, and β-carotene were effective in reducing Cd concentrations in organs and tissues and reduced Cd-induced changes in liver, kidney, and reproductive, circulatory, nervous, immune, and respiratory systems. In contrast, the limited number of human studies does not allow to accurately determine the role of these nutrients in reducing Cd-induced toxicity, indicating the need for further studies clarifying the role of antioxidant vitamins in reducing Cd-induced toxicity. However, it seems reasonable to promote the consumption of natural food products that are sources of antioxidant vitamins in groups of people with occupational and environmental exposure to Cd.
Źródło:: International Journal of Occupational Medicine and Environmental Health; 2022, 35, 4; 367-392
1232-1087
1896-494X
Pojawia się w:: International Journal of Occupational Medicine and Environmental Health
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Can the effects of chromium compounds exposure be modulated by vitamins and microelements?
Autorzy:: Sijko, Monika
Janasik, Beata
Wąsowicz, Wojciech
Kozłowska, Lucyna
Powiązania:: https://bibliotekanauki.pl/articles/2086573.pdf
Data publikacji:: 2021-08-05
Wydawca:: Instytut Medycyny Pracy im. prof. dra Jerzego Nofera w Łodzi
Tematy:: zinc
folic acid
selenium
hexavalent chromium
vitamin E
vitamin C
Opis:: Chromium (Cr) is a very common element. It occurs in 2 oxidation states, Cr(III) and Cr(VI). Although Cr(III) is not considered an element essential for mammals, it raises lots of controversy due to its role in the body. While Cr(III) action should be considered an effect of pharmacological action, Cr(VI) is included in the first group of carcinogens for humans. Moreover, it induces numerous pathological changes in the respiratory, urinary, reproductive and digestive systems. In addition, Cr(VI) is used in many industry branches, causing millions of workers all over the world to be exposed to Cr(VI) compounds. A considerable number of the occupationally exposed individuals are in favor of a deep analysis of the mechanisms of Cr(VI) action and a search for a way to reduce its negative impact on the human body. Numerous reactive oxygen species inducing oxidative stress and causing various damage are produced during Cr(VI) reduction in the cells. A good balance between antioxidants and pro-oxidants can reduce Cr(VI)-induced damage. The influence of vitamins and microelements on the adverse Cr(VI) effects has no systematic research results summary. Therefore, this work focuses on the role of dietary antioxidants such as vitamins and microelements in the prevention of Cr(VI) adverse health effects. Numerous studies have revealed a protective influence of vitamins (mainly vitamins E and C) as well as microelements (especially selenium) on the reduction of Cr(VI)-induced adverse changes. A potential protective effect of these ingredients may be useful in occupational groups that are particularly exposed to Cr(VI). However, more research in this area is required.
Źródło:: International Journal of Occupational Medicine and Environmental Health; 2021, 34, 4; 461-490
1232-1087
1896-494X
Pojawia się w:: International Journal of Occupational Medicine and Environmental Health
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Assessment of correlation between vitamin D level and prevalence of preterm births in the population of pregnant women in Poland
Autorzy:: Baczyńska-Strzecha, Marta
Kalinka, Jarosław
Powiązania:: https://bibliotekanauki.pl/articles/2161845.pdf
Data publikacji:: 2017-10-06
Wydawca:: Instytut Medycyny Pracy im. prof. dra Jerzego Nofera w Łodzi
Tematy:: pregnancy
vitamin D
preterm delivery
vitamin D deficiency
preterm birth
preterm labor
Opis:: Objectives Aim of this project is determination of the correlation between the level of vitamin D in blood serum and duration of pregnancy in population in central Poland. Material and Methods 25-Hydroxyvitamin D (25(OH)D) level was determined in blood serum, using enzyme-linked immunosorbent assay (ELISA). Standardized history of each patient was recorded. The history included: general medical history, data regarding the course of pregnancy and information about health-related behavior that could influence vitamin D concentration. Two hundred-and-one Caucasian women at childbirth were qualified into the study. The study group was divided into 2 parts: 100 patients who had a spontaneous premature birth and 101 patients who had birth at full term. Results Vitamin D deficiency (< 30 ng/ml) was very common for both groups (69.6% of patients in the premature group and 72% – in the control group). Patients who had a premature birth had severe vitamin D deficiency (less than 10 ng/ml) more often than in the control group (34% vs. 14.2%, p = 0.001). Severe vitamin D deficiency increased the risk of premature birth but the association was not statistically significant in the multivariate regression model (odds ratio (OR) = 2.47, 95% confidence interval (CI): 0.86–7.15, p = 0.094). Conclusions Severe vitamin D deficiency (< 10 ng/ml) may be the factor increasing the risk of preterm birth. Int J Occup Med Environ Health 2017;30(6):933–941
Źródło:: International Journal of Occupational Medicine and Environmental Health; 2017, 30, 6; 933-941
1232-1087
1896-494X
Pojawia się w:: International Journal of Occupational Medicine and Environmental Health
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Vitamin D – dietary intake, supplementation and metabolic status of Polish adults
Autorzy:: Kamińska, Sylwia
Pikala, Małgorzata
Dziankowska-Zaborszczyk, Elżbieta
Bielecki, Wojciech
Rębowska, Ewa
Kozakiewicz, Krystyna
Nadrowski, Paweł
Drygas, Wojciech
Kwaśniewska, Magdalena
Powiązania:: https://bibliotekanauki.pl/articles/2116712.pdf
Data publikacji:: 2020-01-17
Wydawca:: Instytut Medycyny Pracy im. prof. dra Jerzego Nofera w Łodzi
Tematy:: adults
abdominal obesity
metabolic disorders
Polish
vitamin D supplementation
vitamin D intake
Opis:: ObjectivesContrary to popular opinion on the preventive properties of vitamin D, results of previous studies have been inconclusive. The aim of this research was to evaluate the associations between the intake of vitamin D and metabolic abnormalities in a representative sample of Polish adults.Material and MethodsWithin the framework of the Multi-Center National Population Health Examination Survey (referred to as WOBASZ), a random sample of 2381 adult residents of Poland (53.8% of whom were women) was examined. All the study subjects were extensively reviewed, including 24-h dietary recall. The intake of vitamin D was assessed on the basis of dietary and supplements reviews. Metabolic abnormalities were evaluated using measurements of waist circumference (WC), blood pressure (BP), serum triglycerides (TG), high-density lipoprotein cholesterol (HDL-C) and fasting glycemia. Metabolic syndrome was defined according to the International Diabetes Federation.ResultsOf all the study participants, about 4.4 % of women and 2.6% of men declared a regular supplementation of vitamin D. Among women, a significant inverse correlation between vitamin D supplementation and the mean systolic BP was found (p < 0.01). A more substantial relationship was noted after dividing the study subjects according to their body mass. Among obese men, there was a significant inverse relationship between vitamin D intake and the mean systolic BP (p < 0.01) and diastolic BP (p < 0.05), as well as a positive correlation with HDL-C (p < 0.05). Among obese women, a negative correlation was found between vitamin D supplementation and the mean systolic BP (p < 0.01) and diastolic BP (p < 0.05), and a positive correlation with TG (p < 0.05). Among non-obese male subjects, a negative correlation between vitamin D intake and WC was observed.ConclusionsThe obtained findings suggest that the correlation between vitamin D intake and metabolic abnormalities may depend on the obesity status. A higher vitamin D intake may reduce BP and increase HDL-C in obese subjects. The positive relationship between vitamin D intake and TG concentration in women needs further investigation.
Źródło:: International Journal of Occupational Medicine and Environmental Health; 2020, 33, 1; 107-118
1232-1087
1896-494X
Pojawia się w:: International Journal of Occupational Medicine and Environmental Health
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Determinants of vitamin D status among Jordanian employees: Focus on the night shift effect
Autorzy:: Alefishat, Eman
Abu Farha, Rana
Powiązania:: https://bibliotekanauki.pl/articles/2168364.pdf
Data publikacji:: 2016-07-22
Wydawca:: Instytut Medycyny Pracy im. prof. dra Jerzego Nofera w Łodzi
Tematy:: vitamin D
vitamin D deficiency
night shift work
Jordan
working conditions
risk assessment
Opis:: Objectives To assess the association between night work and 25-hydroxy vitamin D (25OHD) levels, and to evaluate effect of potential risk factors on 25OHD levels. Material and Methods A total of 140 adult Jordanian employees were recruited. Demographic, lifestyle and working patterns data were documented through a well-structured questionnaire. Vitamin D status was assessed by measuring circulating concentrations of 25OHD. Results Mean 25OHD level was 23.8 ng/ml. No significant difference was found in 25OHD levels between the summer and winter (p = 0.46), or between males and females (p = 0.35). The female night workers had significantly lower serum 25OHD levels compared to the female day workers (p = 0.01). No significant difference in serum 25OHD levels was found between the night and day male workers (p = 0.25). The number of night shifts/month was negatively correlated with 25OHD levels in both the males and females (p = 0.01 and p = 0.007, respectively). Age was positively correlated with 25OHD levels in both the males and females (p = 0.02 and p = 0.001, respectively). Body mass index was negatively associated with 25OHD levels in the whole sample (p = 0.03), but not within each gender group (p = 0.21 for the males and p = 0.09 for the females). Smoking had no significant association with 25OHD levels (p = 0.99 for the males and p = 0.22 for the females). Conclusions Our results suggest that women working night shifts are at higher risk of 25OHD deficiency, and, consequently, of other health problems linked to 25OHD deficiency. Int J Occup Med Environ Health 2016;29(5):859–870
Źródło:: International Journal of Occupational Medicine and Environmental Health; 2016, 29, 5; 859-870
1232-1087
1896-494X
Pojawia się w:: International Journal of Occupational Medicine and Environmental Health
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: Letter to the Editor (July 26, 2017) concerning the paper “Impact of electromagnetic radiation emitted by monitors on changes in the cellular membrane structure and protective antioxidant effect of vitamin A – In vitro study”
Autorzy:: Mortazavi, Seyed M.
Powiązania:: https://bibliotekanauki.pl/articles/2159960.pdf
Data publikacji:: 2017-12-21
Wydawca:: Instytut Medycyny Pracy im. prof. dra Jerzego Nofera w Łodzi
Tematy:: electromagnetic fields
EMF
monitors
cell membrane
antioxidants
vitamin A
Źródło:: International Journal of Occupational Medicine and Environmental Health; 2018, 31, 3; 371-372
1232-1087
1896-494X
Pojawia się w:: International Journal of Occupational Medicine and Environmental Health
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:: The Vitamin Model of well-being at work – an application in research in an automotive company
Autorzy:: Borkowska, Anna
Czerw, Agnieszka
Powiązania:: https://bibliotekanauki.pl/articles/2084817.pdf
Data publikacji:: 2022-04-11
Wydawca:: Instytut Medycyny Pracy im. prof. dra Jerzego Nofera w Łodzi
Tematy:: management
well-being
employees
human resources
job characteristics
vitamin model
Opis:: ObjectivesThe main aim of the presented study was to check the level of perceived dimensions of work according to Peter Warr’s model of wellbeing at work (referred to as the Vitamin Model). The main aim was to verify: a) the non-linear dependency of well-being and the first group of “vitamins” of the model; and b) the linear dependency for the second group of dimensions of work.Material and MethodsThe article presents the results of research conducted in a Polish automotive production company. The Vitamin TAW Questionnaire was used to diagnose the dimensions of work. Well-being was measured using the Satisfaction With Job Scale. The analyzes were carried out on a group of 197 people who took part in the research and represented various departments of the organization.ResultsThe obtained results allow a partial confirmation of the non-linear relationship within the dimensions of the first group (for 3 out of 6 characteristics) and a full confirmation of the linear relationship for all dimensions from the second group.Conclusions: The recommendations arising from the research are universal in character and can be used by managers of various organizations. The results clearly demonstrate the need for reflection, and evidence-based and data driven changes in human resources management, and the creation of positive environment of work.
Źródło:: International Journal of Occupational Medicine and Environmental Health; 2022, 35, 2; 187-198
1232-1087
1896-494X
Pojawia się w:: International Journal of Occupational Medicine and Environmental Health
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 8.

Tytuł:: Impact of electromagnetic radiation emitted by monitors on changes in the cellular membrane structure and protective antioxidant effect of vitamin A – In vitro study
Autorzy:: Lewicka, Małgorzata
Henrykowska, Gabriela
Zawadzka, Magdalena
Rutkowski, Maciej
Pacholski, Krzysztof
Buczyński, Andrzej
Powiązania:: https://bibliotekanauki.pl/articles/2161898.pdf
Data publikacji:: 2017-07-14
Wydawca:: Instytut Medycyny Pracy im. prof. dra Jerzego Nofera w Łodzi
Tematy:: lipid peroxidation
antioxidants
vitamin A
malondialdehyde
electromagnetic radiation
LCD monitors
Opis:: Objectives The increasing number of devices emitting electromagnetic radiation (EMR) in people’s everyday life attracted the attention of researchers because of possible adverse effects of this factor on living organisms. One of the EMR effect may be peroxidation of lipid membranes formed as a result of free radical process. The article presents the results of in vitro studies aimed at identifying changes in malondialdehyde (MDA) concentration – a marker of lipid peroxidation and antioxidant role of vitamin A during the exposure of blood platelets to electromagnetic radiation generated by liquid-crystal-display (LCD) monitors. Material and Methods Electromagnetic radiation emitted by LCD monitors is characterized by parameters: 1 kHz frequency and 220 V/m intensity (15 cm from display screen). The time of exposure was 30 and 60 min. The study was conducted on porcine blood platelets. The samples were divided into 6 groups: unexposed to radiation, unexposed + vitamin A, exposed for 30 min, exposed for 30 min + vitamin A, exposed for 60 min, exposed for 60 min + vitamin A. Results The MDA concentration in blood platelets increases significantly as compared to control values after 60 min of exposure to EMR. A significant decrease in MDA concentration after the addition of vitamin A was noticed. In the blood samples exposed to EMR for 30 and 60 min the MDA concentration was significantly increased by addition of vitamin A. Conclusions The results show the possibly negative effect of electromagnetic radiation on the cellular membrane structure manifested by changes in malondialdehyde concentration and indicate a possible protective role of vitamin A in this process. Int J Occup Med Environ Health 2017;30(5):695–703
Źródło:: International Journal of Occupational Medicine and Environmental Health; 2017, 30, 5; 695-703
1232-1087
1896-494X
Pojawia się w:: International Journal of Occupational Medicine and Environmental Health
Dostawca treści:: Biblioteka Nauki