Roczniki Panstwowego Zakladu Higieny最新文献

Background: Red fruits are characterised by a particularly high content of bioactive compounds, e.g. anthocyanins, tannins, pectins, vitamins and minerals. Dietary supply of proper amounts of antioxidants is essential to reduce oxidative stress, and thus is an important element in the prevention of lifestyle diseases.

Objective: The aim of the study was to evaluate and compare the content of polyphenols in selected red fruit juices (chokeberry, elderberry, pomegranate, cranberry), as well as to assess the impact of storage time on the content of these compounds in the analysed samples.

Material and methods: The research material consisted of 17 juices (100%): 3 chokeberry juices, 4 elderberry juices, 5 pomegranate juices and 5 cranberry juices, which differed in terms of the manufacturer, type, price range, country of origin and production method. The total polyphenol content was measured by spectrophotometry using the Folin�Ciocalteu reagent. The procedure was based on a modified method described by Waterhouse. Active acidity (pH) was measured with the potentiometric method using a pH-meter and the sucrose content was measured using a refractometer.

Results: The highest mean content of polyphenolic compounds was found in chokeberry and elderberry juices. Juice storage time did not reduce the mean content of polyphenolic compounds. The highest sucrose content was found in chokeberry juices and the lowest in cranberry juice.

Conclusions: Chokeberry and elderberry juices had the highest content of polyphenols among the tested products. Juices stored after opening in accordance with the manufacturer's instructions (at 4°C) do not lose their nutritional properties.

Background: Essential oils have important antibacterial activities and can successfully replace antibiotics, which show their inefficiency, especially against fungi and multi-resistant bacteria.

Objective: The main purpose of our research was to investigate the antibacterial and antifungal activity of essential oils from fifteen plants harvested in the Taroudant region.

Material and methods: In this work, the essential oils were extracted by hydrodistillation using a Clevenger-type apparatus. The method of disc diffusion in agar medium (aromatogram) is the one used to evaluate the activity of these essential oils against four pathogenic bacteria (Staphylococcus aureus, Escherichia coli, Bacillus sp., and Enterococcus cloacae) and two yeasts (Candida albicans and Cryptococcus neoformans).

Results: Our findings, show that all of the plants' leaves yielded extremely aromatic essential oils that differed in look and color. Furthermore, the 93.33% of the fifteen essential oils that were evaluated proved to be effective against at least one kind of bacteria or fungus. This suggests that the proportion of essential oils with no antibacterial action was rather low, at around 7%. Our data also showed that the freshness or dryness of the plant at the time of harvest could affect the extraction rate of essential oils. This screening showed us that these essential oils present inhibitory activities towards the studied Gram+ bacteria, as well as a resistance against Gram-, in particular Enterococcus cloacae.

Conclusion: These essential oils can therefore be used in the prevention and treatment of certain infectious diseases and to fight against bacteria that are multi-resistant to the usual antibiotics.

Background: Hepatitis B is a serious public health concern and health care professionals especially nurses are at higher risk of acquiring this infection. Basic knowledge, awareness and a positive attitude are required to prevent this disease.

Objective: The present pilot study was conducted to assess awareness and attitude regarding hepatitis B among staff nurses and nursing students of a teaching hospital in north India.

Material and methods: A total of 205 subjects who gave consent to participate were included in this descriptive study. A self-structured pre-tested close ended questionnaire comprising of two parts was used to collect information from the study subjects. First part collected information on demographic details of the study subject and second part assessed subjects' awareness and attitude on various aspects of hepatitis B infection including vaccination. Chi-square test and multiple linear regression analysis was used for statistical analysis.

Results: The mean age of the study subjects was 25.8±5.6 years. Awareness regarding HBV infection was present among 92.6% (190) of subjects. Long-term effects of hepatitis B were known to 58.4% (119) of subjects and 79.1% (162) of subjects reported taking universal precautions. Half of the subjects (105), were getting regularly tested for hepatitis B antigen.The odds of getting regularly tested for hepatitis B antigen were 3.26 times greater in female subjects and 3.45 times greater in subjects who were GNMs.

Conclusion: Low awareness levels were reported regarding some important aspects of hepatitis B among study subjects though more than 90% were aware of it. There is an urgent need for education and training programs for nurses designed to increase their knowledge about HBV infection.

Background: Obesity, especially abdominal obesity, is strongly correlated with metabolic and other health risks. Diagnosis and assessment of obesity is important in clinical and routine preventive practice. From the point of view of risk, it is necessary to distinguish not only the area of fat tissue accumulation, but also its type.

Objective: The aim of the study was to use a new portable abdominal bioimpedance analyzer, which is intended for the area of abdominal adipose tissue, as part of the evaluation of the body structure of a selected group of volunteers with a focus on the differentiation of subcutaneous and visceral adipose tissue and to assess its usefulness in practice.

Material and methods: Body composition was analyzed using a portable abdominal bioimpedance analyzer Yscope (PA-BIA) in combination with a bioimpedance device InBody 970 (high-frequency bioelectrical impedance/HF-BIA). Eighty-three volunteers at the age of 24.92±7.24 years with representation of both sexes participated in the study.

Results: Abdominal fat did not differ significantly between the sexes, women reached an average value of 2.01±1.14 kg, men 2.22±1.60 kg (p>0.05). Gender differentiation was manifested in the case of visceral fat (p<0.01) and visceral fat area (p<0.01), the values of which were lower in women than in men. In the case of subcutaneous fat, we found the opposite trend of values in relation to gender, where lower values were achieved by men, but there were no significant differences (p>0.05). Visceral fat was most correlated with abdominal fat (r=0.86) and waist circumference (r=0.85), subcutaneous fat had the strongest positive correlations with abdominal fat (r=0.93) and with body fat mass (r=0.93).

Conclusions: PA-BIA in combination with HF-BIA makes it possible to determine the representation of subcutaneous and visceral fat in the abdominal area, which the conventional MFS-BIA method does not allow. When evaluating body composition, significant gender differentiation is confirmed, which is an important factor affecting different health risks related to gender and the representation of different types of fat tissue localized and accumulated in different parts of the body.

Background: After suffering from COVID-19, a large number of patients need respiratory rehabilitation. One of the methods of rehabilitation is inhalation with salt aerosols.

Objective: Our work aimed to study the effectiveness of inhalations of a dry aerosol of salt precipitated from the mineral water of the "Teplitsa multidisciplinary sanatorium", Transcarpathian region of Ukraine.

Material and methods: 30 male patients were examined after suffering from COVID-19. We formed two groups of patients, control and main, 15 people each. Patients in the control group received inhalation with a dry aerosol of table salt of the "Aero-M-sol". In contrast, patients in the main group received a course of inhalations with a dry aerosol of salt precipitated from the mineral water.

Results and discussion: Under the influence of the rehabilitation complex in both groups, there is a performance improvement but significant changes are observed only in patients of the main group. The indicator Forced Vital Сapacity1 increased to the greatest extent, which after rehabilitation is significantly higher than in the control group (p<0.05). As a result, the Tiffeneau index significantly increases in the main group compared to the control group, reaching normal values. The main effect is associated with a decrease in obstructive complications of the respiratory tract as a result of a decrease in inflammation. The use of iodine-bromine brines (as in our case) for inhalation in the treatment of respiratory diseases has been proven to be effective, with systemic effects in the form of decreased IgE and increased IgA in the blood serum having been noticed.

Conclusions: The use of haloinhalations with MW salts in the rehabilitation of patients after suffering from COVID-19 disease significantly improves the clinical condition of convalescents.

Background: Due to the spread of COVID-19 infections around the world, in early 2020, the World Health Organization (WHO) announced a global pandemic, i.e. an epidemic of particularly large dimensions affecting countries and entire continents. Long-term stay at home and self-isolation may have significantly impacted lifestyle, diet, food choices and access to food, as well as physical activity in the entire population, including students.

Objective: The aim of the study was to examine the impact of social isolation caused by the coronavirus pandemic on changes in diet, lifestyle and body mass index in a group of students, so that we would be better prepared for future new viral infections with characteristics similar to Covid-19.

Material and methods: The study was conducted in 2021 using a cross-sectional online survey (using the CAWI technique). The survey was addressed to students of universities in Poland who were over 18 years of age. After excluding forms completed incorrectly or with incorrect data, the final analysis of the results included the responses of 196 respondents. Statistical analyzes were performed in STATISTICA 13.3. Statistical significance was assumed at the level of p ≤ 0.05.

Results: The study involved 136 women and 60 men with an average age of 23. The majority of respondents were residents of cities with over 500,000 inhabitants (50%), were students of 1st degree (45%) in medical/natural sciences (36%). The largest percentage of respondents (above 70%), before the pandemic and during isolation, had normal body weight, according to the BMI. There were significant statistical differences between gender and changes during COVID-19 pandemic in sleeping (p=0.013), physical activity (p=0.028), as well as the consumption of tea (p=0.047), milk and dairy products (p=0.041), alcohol (p=0.001) and red meat (p=0.003), vegetables (p=0.049), sweets (p=0.029) and fast food (p=0.004).

Conclusions: Due to the fact that the impact of the coronavirus pandemic on the diet and lifestyle has been demonstrated, it is very important that the recommendations of public health organizations spread the message about rational nutrition and physical activity in the event of new viral infections among young people, including students.

Background: The global impact of the Coronavirus Disease 2019 (COVID-19) pandemic has been enormous. The primary school's role and responsibilities include providing students with education and training, cooperating and supporting educational management, and monitoring, following up, and evaluating the school's operations.

Objective: The goals of this study were to evaluate the conditions of preparation for the COVID-19 epidemic's prevention and response, as well as to investigate the relationship between predisposing, enabling, and reinforcing factors in preventing the spread of COVID-19 among primary school students in the educational area.

Material and methods: A cross-sectional analytical study was used as the research design. The informants are kids in grades 4-6 at Anuban Krabi School in Krabi province. Data is gathered in a computational quantitative manner. Purposive sampling was used to choose the informants. The researchers employed a questionnaire with a content validity index (CVI) of 0.89 and a reliability coefficient (Cronbach's Alpha Coefficient) of 0.89. For quantitative data analysis, the Pearson Correlation Coefficient was used.

Results: In preparation for the COVID-19 outbreak, there is a high degree of knowledge, behaviors, and self-conduct (x=2.78, 2.55, 2.66, and 2.78). The perception and awareness of the COVID-19 epidemic were statistically significant at P < 0.01 in terms of the relationship between perception, awareness, behavior, and self-conducting in stopping the spread of COVID-19. Conclusion: At P < 0.01, regarding the relationship between COVID-19 epidemic perceptions, behaviors, and self-conducting. The correlation between awareness, behaviors, and self-conducting in relation to the COVID-19 outbreak was statistically significant at P<0.01.

Conclusions: To prepare and response for COVID-19 enhance and concern perceived policy and COVID-19 information, participation with stakeholders or communities emphasize COVID-19 prevention and all of organization and family.

Background: Despite the extensive literature focused on propolis extract, few data exists on the bioactive compounds and biological activities in the Moroccan propolis and its economic value is low.

Objective: In this research, the aim was to evaluate the total content of phenols and flavonoids as well as the antioxidant, antibacterial and antifungal activities of Moroccan propolis.

Material and methods: The polyphenol and flavonoid content of the Moroccan propolis from three geographic regions, was quantified in the ethanolic extract by colorimetric methods using folin-ciocalteu and aluminum chloride. The antioxidant activity was evaluated by the DPPH test and expressed as IC50. Disk diffusion and broth microdilution methods were used to examine in vitro antimicrobial activity against known human microorganism pathogens.

Results: The obtained data revealed that Moroccan propolis samples presented significant variations in total polyphenols and flavonoids. All samples showed significant antioxidant activity with IC50 values ranging from 4.23±0.5 to 154±0.21 μg/ mL. A strong correlation between total phenolic activity, flavonoids and antioxidant activity was found. The in vitro study of antibacterial activity showed that the propolis samples exhibited a range of growth inhibitory actions against all bacterial strains tested with the highest activity against gram-positive bacteria. Only propolis from the Sidi Bennour region demonstrated an antifungal activity.

Conclusion: The study data show that Moroccan propolis extracts have a promising content of antioxidant and antimicrobial compounds that could be exploited to prevent certain diseases linked to oxidative stress and pathogenic infections.

Background: There is growing strong scientific evidence over the past few decades that the Mediterranean diet (MD) has protective effects on cardiometabolic health.

Objective: This study aimed to assess MD adherence and its association with sociodemographic and lifestyle factors among women living in two Moroccan provinces, El Jadida and Tetouan, located at different distances from the Mediterranean Sea.

Material and methods: It is a cross-sectional study involved 355 subjects of which 55.8% reside in the province of El Jadida, and data on socio-demographic characteristics, lifestyle, cardiovascular risks, medical history and of food frequency consumption were collected. Compliance with the MD was assessed with a simplified MD adherence score based on the weekly frequency of consumption of eight food groups.

Results: The overall mean Simplified Mediterranean Diet Score was 4.37 ± 1.47 with inadequate compliance in 55.2% of the sample. No significant association was found between adherence to MD and geographic, socio-demographic, lifestyle or the major cardiovascular risk factors. However, the participants do not comply with half of the recommendations based on the Mediterranean diet pyramid. The lowest level of compliance was observed for olive oil, followed by sweets, eggs, potatoes, fruits, red meat, vegetables, legumes, olives, nuts and seeds. The increased contribution of sugars, dairy products and meat to the overall food intake is significant in the category with high adherence to MD.

Conclusion: The study data indicate that Mediterranean Diet is far from being a global pattern in this Moroccan population. The study draws attention to the need for a promoting intervention to maintain this pattern as the original diet in the region.

Background: People live in a technological world, where social media is used very commonly. Social media has effects on eating behaviors, as in other aspects. For this reason, it is important to measure social media effect.

Objective: This study aimed to adapt the Scale of Effects of Social Media on Eating Behaviour (SESMEB) that examines the effect of social media on eating behavior in Hungarian university students.

Material and methods: The SESMEB was translated into the target language by taking various stages. The online questionnaire including general information, social media use, and the eighteen-item SESMEB was used to collect data. The scale was administered to the study group consisting of 213 Hungarian university students, and data from 203 of them were analyzed. Confirmatory factor analyses were performed to test construct validity, and the Cronbach alpha coefficient was calculated for the reliability of the scale in Hungarian.

Results: Total correlation value was higher than 0.50 for all items of the scale. The fit indices were at an acceptable level or had a perfect fit. The t-values were significant at the level of 0.1 and ranged between 2.927 and 5.706. The Spearman-Brown coefficient was calculated at 0.894. The reliability coefficient of the scale was calculated to be 0.866. SESMEB scores were different according to spending time daily, sharing content, and using filters or Photoshop on social media (p < 0.05).

Conclusions: Higher than 0.80 Cronbach's alpha coefficient and other results show that Hungarian SESMEB is a valid and reliable tool. Therefore, Hungarian SESMEB will be useful for further studies to determine the impact of social media on eating behaviors.