جستجوی مقالات مرتبط با کلیدواژه "aran" در نشریات گروه "پزشکی"

Leishmaniasis, a common parasitic disease between humans and animals, which is currently one of the major health problems in many parts of Iran. Therefore, this study aimed to investigate the prevalence of cutaneous leishmaniasis in Aran and Bidgol and the effects of climatic factors on that during 2016-2019.

This cross-sectional study was performed by referring to the health records of 964 cutaneous leishmaniasis patients in Aran and Bidgol during 2016-2019 and epidemiological information was recorded. In addition, the climatic characteristics of the study area, including temperature, humidity, and precipitation were collected from the meteorological station of the study area. Then correlation analysis was performed between meteorological elements and the incidence of the disease. The data were analyzed using SPSS software version 16.

60% of the patients were male. The age group of 0-10 years had the highest frequency (23.9%) among patients. Also, 47.7% of the patients had a history of traveling to endemic areas and the highest rate of leishmaniasis was related to urban residents. There was also a weak positive correlation between humidity and rainfall with leishmaniasis incidence (r = +0.55).  A weak negative correlation was also observed between temperature of the environment and leishmaniasis incidence (r = -0.42).

Due to the significant increase in cutaneous leishmaniasis in recent years in the area, as well as the appropriate ecological conditions of the area for sand fly activity, it is recommended to conduct the necessary training to observe health in hot seasons and field controls, such as baiting.

Background and Soil heavy metal contamination is a major environmental concern. Contaminants in urban soils can directly pose significant human health risks through oral ingestion, particle inhalation, and dermal contact. The purpose of this study was to determine the health risk of heavy metals in surface soils in Aran-Bidgol, Iran.
A descriptive cross-sectional study was performed in which 135 topsoil samples were collected from Aran-Bidgol (in Isfahan province) and the metal concentrations of Cd, Pb, Ni, Zn and Cu were determined. Carcinogenic and non-carcinogenic human health risks of heavy metals in surface soils through oral ingestion, inhalation and dermal contact pathways for children and adults were evaluated using the US Environmental Protection Agency (EPA) approved method.
The mean concentrations of Cd, Pb, Ni, Zn and Cu, were 0.72, 11.41, 29.87, 48.59, and 14.82 mg/kg, respectively, which all exceeded the background values. The highest non-cancer risks for both children and adults were found in Pb (12.63 and 0.82, respectively) while the lowest values were observed in Zn (0.3 and 0.04, respectively). The total accumulated non-cancer risk (HI) of all heavy metals for children and adults were more than 17 and 2, respectively. The cancer risk values were 6.37E-06 (Cd), 6.78E-06 (Pb), and 3E-04 (Ni) for children and 1.12E-06 (Cd), 1.19E-06 (Pb), and 6.19E-05 (Ni) for adults.

Background and Soil contamination resulted from either natural or anthropogenic factors reduces environmental quality. The aim of this study was to evaluate the geoaccumulation, contamination factor, and principal component analysis indices to estimate topsoil contamination in Aran-Bidgol town. 135 topsoil samples were collected from Aran-Bidgol town and the metal concentrations of Cd, Pb, Ni, Cu, and Zn in each sample were determined. The index of geoaccumulation (Igeo), contamination factor (CF), and principal component analysis (PCA) techniques were applied to determine the status and trends of soil contamination in this region. The inverse distance weighting (IDW) was then used to map these soil contamination indices. The research found that the means concentrations of Cd, Pb, Ni, Zn, and Cu were 0.72, 11.41, 29.87, 48.59, and 14.82 mg/kg respectively all exceeded the background values. Mean Igeo and CF of elements followed the order: Cu> Cd> Ni> Zn≈ Pb. The Igeo and CF maps showed higher values of Cd, Pb, and Zn in areas near industrial estates, brick kilns, and urban areas whereas higher levels of Cu and Ni occurred in urban and agricultural areas. According to the PCA index, two principal components were identified that Cu, Ni and Zn were highly loaded in PC1 and Cd and Pb occurred in PC2. Results indicated that the concentration of Pb and Cd are mostly affected by human activities, whereas Ni, Zn, and Cu contents are controlled by both anthropogenic and natural sources.

Aran-bidgol Lake is one of the hypersalin lakes in Iran that is full of black mud in most seasons. Studies have shown that this type of mud is rich in minerals and natural antibiotics, and has the potential to be used in the treatment of various diseases. The aim of this study was to investigate the physicochemical properties and antimicrobial activity of black mineral mud isolated from Aran Bidgol salt Lake, on several common antibiotic resistant pathogens. We used XRD and XRF tests to investigate the physicochemical properties of the mud. We prepared serial mud concentrations of 0.01 to 0.6 g/ml in Mueller Hinton Agar and used minimal bactericidal concentration (MBC) test to investigate the antibacterial activity of the mud, against drug-resistant strains of P. aeruginosa, A. baumannii, E. coli and S. aureus. Comparison of the physicochemical properties of this mud with those of the commercial sample (Fango) showed that the percentages of inorganic compounds are similar in the mud isolated from Aran-Bidgol Lake and Fango mud, but the percentages of Na+ and Cl- ions were higher in Aran-Bidgol mud sample. Evaluation of the antimicrobial activity of the Aran-Bidgol mud showed that more than 90% of the strains were susceptible to the mud at MBC 4 g/ml. According to the results of this study, this mud is suitable for the successful commercial purposes and use in mud therapy clinics.