LIVIVO - The Search Portal for Life Sciences

zur deutschen Oberfläche wechseln
Advanced search

Search results

Result 1 - 10 of total 23

Search options

  1. Article ; Online: Particulates induced lung inflammation and its consequences in the development of restrictive and obstructive lung diseases: a systematic review.

    Shamsollahi, Hamid Reza / Jahanbin, Behnaz / Rafieian, Shahab / Yunesian, Masud

    Environmental science and pollution research international

    2021  Volume 28, Issue 20, Page(s) 25035–25050

    Abstract: Particulate matters (PMs) are significant components of air pollution in the urban environment. PMs with aerodynamic diameter less than 2.5 μm ( ... ...

    Abstract Particulate matters (PMs) are significant components of air pollution in the urban environment. PMs with aerodynamic diameter less than 2.5 μm (PM
    MeSH term(s) Air Pollutants/analysis ; Air Pollution/analysis ; Animals ; Dust ; Lung ; Lung Diseases, Obstructive ; Particulate Matter/analysis ; Pneumonia/chemically induced
    Chemical Substances Air Pollutants ; Dust ; Particulate Matter
    Language English
    Publishing date 2021-03-29
    Publishing country Germany
    Document type Journal Article ; Review ; Systematic Review
    ZDB-ID 1178791-0
    ISSN 1614-7499 ; 0944-1344
    ISSN (online) 1614-7499
    ISSN 0944-1344
    DOI 10.1007/s11356-021-13559-5
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  2. Article: Characterization of persistent materials of deposited PM2.5 in the human lung

    Shamsollahi, Hamid Reza / Yunesian, Masud / Kharrazi, Sharmin / Jahanbin, Behnaz / Nazmara, Shahrokh / Rafieian, Shahab / Dehghani, Mohammad Hadi

    Chemosphere. 2022 Aug., v. 301

    2022  

    Abstract: Clearance of deposited urban air particulates (PMs) from the lung is vital for the protection of the lung tissue. Several studies have investigated the behavior of immune cells against these particulates in vitro and in vivo. However, the fate of ... ...

    Abstract Clearance of deposited urban air particulates (PMs) from the lung is vital for the protection of the lung tissue. Several studies have investigated the behavior of immune cells against these particulates in vitro and in vivo. However, the fate of particulates in the lung is yet unclear. Here, we report the results of our investigations on the clearance of particulates from the lung. Twelve normal lung tissue samples were taken from nonsmoking and non-occupationally exposed patients who needed lung lobectomy or segmentectomy. The remaining particulates were isolated from the alveolar area and extracellular matrix (ECM), separately, and their chemical composition was determined using the FE-SEM EDAX and GC-MS. Moreover, urban air PM₂.₅ was collected in two forms dry and washed. These were characterized too. Our results showed that none of the metals in the deposited particulates structure is fully water-soluble. After contact with mucosal liquid, the alveolar particulates included Fe, Al, Si, Ti, and Ni. These elements were absent in the PMs isolated from ECM. The organics of alveolar and ECM particulates were the same and included tetra-decane, hexadecane, and octa-decane. None of the organics present in the urban air PM₂.₅, such as PAHs, were available in isolated particulates from the lung tissue. This study shows that the full clearance of inhaled particulates does not happen in the lung. The immune system's primary function is detoxification by removing all components identifiable by immune cells. After that, the remained PMs will be relocated and deposited into the ECM.
    Keywords air ; chemical composition ; extracellular matrix ; hexadecane ; humans ; immune system ; liquids ; lungs ; particulates ; water solubility
    Language English
    Dates of publication 2022-08
    Publishing place Elsevier Ltd
    Document type Article
    ZDB-ID 120089-6
    ISSN 1879-1298 ; 0045-6535 ; 0366-7111
    ISSN (online) 1879-1298
    ISSN 0045-6535 ; 0366-7111
    DOI 10.1016/j.chemosphere.2022.134774
    Database NAL-Catalogue (AGRICOLA)

    More links

    Kategorien

  3. Article: Development of a new method for isolation of urban air particulates deposited in the human lung tissue

    Shamsollahi, Hamid Reza / Kharrazi, Sharmin / jahanbin, Behnaz / Rafieian, Shahab / Dehghani, Mohammad Hadi / Yunesian, Masud

    Chemosphere. 2021 Oct., v. 280

    2021  

    Abstract: Particulate matters (PMs) are important pollutants in urban air pollution because of their variable composition. The pulmonary clearance of PMs is critical to prevent long-term immunological responses. This study established a new method for the ... ...

    Abstract Particulate matters (PMs) are important pollutants in urban air pollution because of their variable composition. The pulmonary clearance of PMs is critical to prevent long-term immunological responses. This study established a new method for the isolation of probably deposited urban air particulates from the human lung tissue, to investigate the features of uncleared particulates. The lung samples were acellularized with SDS solution of various concentrations ranging from 1 to 10%to lyse cells and release the PMs. In addition, the extracellular matrix (ECM) that remained was digested by proteinase K enzyme. The results of this study demonstrated that an SDS solution of 4% is the optimum concentration for the isolation of settled PMs from the lung tissue. Moreover, the used enzymatic method could separate settled PMs from the lung ECM appropriately. The results exhibited that epithelial cells form 46% of the samples’ weight on average, whereas just 20% of isolated PMs were found in this part of the tissue. Both groups of separated PMs tend to agglomerate, but it is significantly higher in cellular isolated PMs. The particles separated from ECM have an agglomeration tendency, which is observable only by FE-SEM imaging. Moreover, we found a major part of urban air PMs deposited in ECM. The established method in this study can be used in future investigations to isolate other types of PMs settled in the lung, such as occupationally inhaled carbonaceous particulates.
    Keywords air ; air pollution ; enzymatic treatment ; epithelium ; extracellular matrix ; humans ; lungs ; particulates ; peptidase K
    Language English
    Dates of publication 2021-10
    Publishing place Elsevier Ltd
    Document type Article
    Note NAL-AP-2-clean
    ZDB-ID 120089-6
    ISSN 1879-1298 ; 0045-6535 ; 0366-7111
    ISSN (online) 1879-1298
    ISSN 0045-6535 ; 0366-7111
    DOI 10.1016/j.chemosphere.2021.130585
    Database NAL-Catalogue (AGRICOLA)

    More links

    Kategorien

  4. Article ; Online: Characterization of persistent materials of deposited PM

    Shamsollahi, Hamid Reza / Yunesian, Masud / Kharrazi, Sharmin / Jahanbin, Behnaz / Nazmara, Shahrokh / Rafieian, Shahab / Dehghani, Mohammad Hadi

    Chemosphere

    2022  Volume 301, Page(s) 134774

    Abstract: Clearance of deposited urban air particulates (PMs) from the lung is vital for the protection of the lung tissue. Several studies have investigated the behavior of immune cells against these particulates in vitro and in vivo. However, the fate of ... ...

    Abstract Clearance of deposited urban air particulates (PMs) from the lung is vital for the protection of the lung tissue. Several studies have investigated the behavior of immune cells against these particulates in vitro and in vivo. However, the fate of particulates in the lung is yet unclear. Here, we report the results of our investigations on the clearance of particulates from the lung. Twelve normal lung tissue samples were taken from nonsmoking and non-occupationally exposed patients who needed lung lobectomy or segmentectomy. The remaining particulates were isolated from the alveolar area and extracellular matrix (ECM), separately, and their chemical composition was determined using the FE-SEM EDAX and GC-MS. Moreover, urban air PM
    MeSH term(s) Air Pollutants/analysis ; Dust ; Environmental Monitoring/methods ; Humans ; Lung ; Particle Size ; Particulate Matter/analysis ; Polycyclic Aromatic Hydrocarbons/analysis
    Chemical Substances Air Pollutants ; Dust ; Particulate Matter ; Polycyclic Aromatic Hydrocarbons
    Language English
    Publishing date 2022-04-29
    Publishing country England
    Document type Journal Article
    ZDB-ID 120089-6
    ISSN 1879-1298 ; 0045-6535 ; 0366-7111
    ISSN (online) 1879-1298
    ISSN 0045-6535 ; 0366-7111
    DOI 10.1016/j.chemosphere.2022.134774
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  5. Article ; Online: Development of a new method for isolation of urban air particulates deposited in the human lung tissue.

    Shamsollahi, Hamid Reza / Kharrazi, Sharmin / Jahanbin, Behnaz / Rafieian, Shahab / Dehghani, Mohammad Hadi / Yunesian, Masud

    Chemosphere

    2021  Volume 280, Page(s) 130585

    Abstract: Particulate matters (PMs) are important pollutants in urban air pollution because of their variable composition. The pulmonary clearance of PMs is critical to prevent long-term immunological responses. This study established a new method for the ... ...

    Abstract Particulate matters (PMs) are important pollutants in urban air pollution because of their variable composition. The pulmonary clearance of PMs is critical to prevent long-term immunological responses. This study established a new method for the isolation of probably deposited urban air particulates from the human lung tissue, to investigate the features of uncleared particulates. The lung samples were acellularized with SDS solution of various concentrations ranging from 1 to 10%to lyse cells and release the PMs. In addition, the extracellular matrix (ECM) that remained was digested by proteinase K enzyme. The results of this study demonstrated that an SDS solution of 4% is the optimum concentration for the isolation of settled PMs from the lung tissue. Moreover, the used enzymatic method could separate settled PMs from the lung ECM appropriately. The results exhibited that epithelial cells form 46% of the samples' weight on average, whereas just 20% of isolated PMs were found in this part of the tissue. Both groups of separated PMs tend to agglomerate, but it is significantly higher in cellular isolated PMs. The particles separated from ECM have an agglomeration tendency, which is observable only by FE-SEM imaging. Moreover, we found a major part of urban air PMs deposited in ECM. The established method in this study can be used in future investigations to isolate other types of PMs settled in the lung, such as occupationally inhaled carbonaceous particulates.
    MeSH term(s) Air Pollutants/analysis ; Air Pollution/analysis ; Dust ; Humans ; Lung ; Particulate Matter/analysis
    Chemical Substances Air Pollutants ; Dust ; Particulate Matter
    Language English
    Publishing date 2021-04-27
    Publishing country England
    Document type Journal Article
    ZDB-ID 120089-6
    ISSN 1879-1298 ; 0045-6535 ; 0366-7111
    ISSN (online) 1879-1298
    ISSN 0045-6535 ; 0366-7111
    DOI 10.1016/j.chemosphere.2021.130585
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  6. Article ; Online: Environmental exposure to endotoxin and its health outcomes: A systematic review.

    Shamsollahi, Hamid Reza / Ghoochani, Mahboobeh / Jaafari, Jalil / Moosavi, Azam / Sillanpää, Mika / Alimohammadi, Mahmood

    Ecotoxicology and environmental safety

    2019  Volume 174, Page(s) 236–244

    Abstract: Exposure to endotoxin occurs environmentally and occupationally. There are several differences between them in terms of the variety and severity of health outcomes, possible exposed groups and type and route of exposure. Occupational exposures caused ... ...

    Abstract Exposure to endotoxin occurs environmentally and occupationally. There are several differences between them in terms of the variety and severity of health outcomes, possible exposed groups and type and route of exposure. Occupational exposures caused adverse health outcomes in almost all cases, but there is disparity in the incidence of significant health outcomes due to environmental exposure to endotoxin. This study has therefore endeavoured to investigate health outcomes from environmental exposure to endotoxin. A systematic review was conducted of three databases and non-occupational studies reporting the environmental concentration of endotoxin, and observed health outcomes in exposed groups were included in the review (n = 27). The studies showed that first exposure to endotoxin occurs in infancy by the inhalation route. Inhalation is the only exposure route that can induce inflammation as the main symptom of exposure to endotoxin. The studies included were conducted using four approaches: molecular immunology, measurement of lung volumes, clinical sensitisation test and diagnosis of asthmatic and respiratory symptoms such as wheezing. By the immunological approach, all the included studies reported that environmental exposure to endotoxin, especially at a younger age, has a protective effect on the incidence of asthma in adolescence. The main disparity observed was in studies using the approach of diagnosed asthma. Overall, however, they confirm the protective effect of exposure to endotoxin although, in the case of children with non-atopic asthma, the results could be different.
    MeSH term(s) Adolescent ; Air Pollutants/analysis ; Air Pollutants/toxicity ; Air Pollution, Indoor/adverse effects ; Air Pollution, Indoor/analysis ; Asthma/chemically induced ; Asthma/immunology ; Child ; Child, Preschool ; Endotoxins/analysis ; Endotoxins/toxicity ; Environmental Exposure/adverse effects ; Environmental Exposure/analysis ; Female ; Humans ; Infant ; Male ; Respiratory Sounds/drug effects ; Respiratory Sounds/immunology
    Chemical Substances Air Pollutants ; Endotoxins
    Language English
    Publishing date 2019-03-01
    Publishing country Netherlands
    Document type Journal Article ; Systematic Review
    ZDB-ID 436536-7
    ISSN 1090-2414 ; 0147-6513
    ISSN (online) 1090-2414
    ISSN 0147-6513
    DOI 10.1016/j.ecoenv.2019.02.046
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  7. Article: Data on spot–kits versus titration method for iodine determination in salt: Performance and validity

    Shamsollahi, Hamid Reza / Rastkari, Noushin / Nadarloo, Maryam / Hosseini, Sara Sadat / sheikhi, Razieh / Nabizadeh, Ramin

    Data in Brief. 2018 Dec., v. 21

    2018  

    Abstract: The aim of this data is comparison of achieved data from salt iodine measurement by titration method with using sodium thiosulfate in presence of lugol׳s reagent and commercial spot- kit. Titration measurement was carried out in two different ... ...

    Abstract The aim of this data is comparison of achieved data from salt iodine measurement by titration method with using sodium thiosulfate in presence of lugol׳s reagent and commercial spot- kit. Titration measurement was carried out in two different laboratories using standard samples. 437 samples including 20 commercial brands were collected throughout Iran. The iodine contents of the samples were measured by both the titration method and two most frequently used spot-kit brands in Iran. There is no significant differences between the results obtained from the two brands of spot-kits (ICC = 0.797). The kits sensitivity for determination of negative samples was high (more than 0.9) but by increasing the iodine concentration up to 15 ppm, the kits’ sensitivity was decreased. These findings indicate that the titration method is necessary for quantitative purposes, especially for concentrations higher than 30 ppm. However, spot-kits are suitable for qualitative and semi-quantitative measurements.
    Keywords iodine ; sodium thiosulfate ; titration ; Iran
    Language English
    Dates of publication 2018-12
    Size p. 92-96.
    Publishing place Elsevier Inc.
    Document type Article
    ZDB-ID 2786545-9
    ISSN 2352-3409
    ISSN 2352-3409
    DOI 10.1016/j.dib.2018.10.001
    Database NAL-Catalogue (AGRICOLA)

    More links

    Kategorien

  8. Article: Data on spot-kits versus titration method for iodine determination in salt: Performance and validity.

    Shamsollahi, Hamid Reza / Rastkari, Noushin / Nadarloo, Maryam / Hosseini, Sara Sadat / Sheikhi, Razieh / Nabizadeh, Ramin

    Data in brief

    2018  Volume 21, Page(s) 92–96

    Abstract: The aim of this data is comparison of achieved data from salt iodine measurement by titration method with using sodium thiosulfate in presence of lugol׳s reagent and commercial spot- kit. Titration measurement was carried out in two different ... ...

    Abstract The aim of this data is comparison of achieved data from salt iodine measurement by titration method with using sodium thiosulfate in presence of lugol׳s reagent and commercial spot- kit. Titration measurement was carried out in two different laboratories using standard samples. 437 samples including 20 commercial brands were collected throughout Iran. The iodine contents of the samples were measured by both the titration method and two most frequently used spot-kit brands in Iran. There is no significant differences between the results obtained from the two brands of spot-kits (ICC = 0.797). The kits sensitivity for determination of negative samples was high (more than 0.9) but by increasing the iodine concentration up to 15 ppm, the kits' sensitivity was decreased. These findings indicate that the titration method is necessary for quantitative purposes, especially for concentrations higher than 30 ppm. However, spot-kits are suitable for qualitative and semi-quantitative measurements.
    Language English
    Publishing date 2018-10-04
    Publishing country Netherlands
    Document type Journal Article
    ZDB-ID 2786545-9
    ISSN 2352-3409
    ISSN 2352-3409
    DOI 10.1016/j.dib.2018.10.001
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  9. Article ; Online: Validity of a Serological Diagnostic Kit for SARS-CoV-2 Available in Iran.

    Shamsollahi, Hamid Reza / Amini, Mostafa / Alizadeh, Shaban / Nedjat, Saharnaz / Akbari-Sari, Ali / Rezaei, Mehdi / Allameh, Seyed Farshad / Fotouhi, Akbar / Yunesian, Masud

    Archives of Iranian medicine

    2020  Volume 23, Issue 9, Page(s) 629–632

    Abstract: Background: The Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) epidemic broke out in December 2019 and is now characterized as a pandemic. Effective control of this infectious disease requires access to diagnostic techniques, for both case ...

    Abstract Background: The Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) epidemic broke out in December 2019 and is now characterized as a pandemic. Effective control of this infectious disease requires access to diagnostic techniques, for both case finding and epidemic size estimation. The molecular technique is routinely used worldwide. Although it is the "standard" case detection and management method, it has its own shortcomings. Thus, some easy-to-use rapid serological tests have been developed.
    Methods: One hundred and fourteen positive RT-PCR-diagnosed patients were tested by VivaDiag Kit, a brand of rapid serological kits available in hospitals affiliated to Tehran University of Medical Sciences (TUMS), Tehran, Iran. Frozen serum specimens taken from healthy people in summer and fall 2019 were also tested as negative controls.
    Results: Test sensitivity was 47.9% (95% confidence interval [CI]: 38.8-56.9) for IgM and 47.0% (95% CI: 38.0-56.0) for IgG. There was no difference between IgG and IgM seropositivity except in one case. Specificity was calculated as 99.0% (95% CI: 96.4-99.9) for IgM and of 100.0% (95% CI: 0.98.2-100.0) for IgG. Sensitivity was higher in men and older participants.
    Conclusion: This test can be used for epidemiological investigations, especially for the estimation of the level of infection in the community, after it is properly corrected for sensitivity and specificity. The low sensitivity could be attributed to the technical limitations of the kit or low levels of antibodies after infection. The different sensitivity in age and sex groups supports the hypothesis that different people show different immune responses to this virus.
    MeSH term(s) Adult ; Antibodies, Viral/analysis ; Betacoronavirus/immunology ; COVID-19 ; COVID-19 Testing ; Clinical Laboratory Techniques/methods ; Coronavirus Infections/diagnosis ; Coronavirus Infections/epidemiology ; Female ; Humans ; Incidence ; Iran/epidemiology ; Male ; Pandemics ; Pneumonia, Viral/diagnosis ; Pneumonia, Viral/epidemiology ; SARS-CoV-2 ; Serologic Tests/methods
    Chemical Substances Antibodies, Viral
    Keywords covid19
    Language English
    Publishing date 2020-09-01
    Publishing country Iran
    Document type Journal Article
    ZDB-ID 2204979-4
    ISSN 1735-3947 ; 1029-2977
    ISSN (online) 1735-3947
    ISSN 1029-2977
    DOI 10.34172/aim.2020.75
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  10. Article: Assessment of the Health Risk Induced by Accumulated Heavy Metals from Anaerobic Digestion of Biological Sludge of the Lettuce

    Shamsollahi, Hamid Reza / Alimohammadi, Mahmood / Khorasgani, Fazlollah Changani / Masinaei, Masoud / Momeni, Samane / Nabizadeh, Ramin / Naddafi, Kazem / Yousefi, Mahmood

    Biological trace element research. 2019 Apr., v. 188, no. 2

    2019  

    Abstract: Heavy metals are a group of pollutants in biological sludge. Many agencies regulated guidelines for heavy metal concentrations for various applications of sludge such as agricultural application. In this study, we tried to determine heavy metal fate ... ...

    Abstract Heavy metals are a group of pollutants in biological sludge. Many agencies regulated guidelines for heavy metal concentrations for various applications of sludge such as agricultural application. In this study, we tried to determine heavy metal fate after anaerobic digestion. Additionally, we determined the bioaccumulation rate of heavy metals in lettuce cultivated on a sludge-applied land. Heavy metal (As, Pb, Hg, Cd) contents of solid and liquid parts of raw and anaerobically digested sludge were separately measured by ICP-OES. For this purpose, the samples were digested using nitric acid, hydrochloric acid, and boric acid. Then, the raw and anaerobically digested sludge were used for cultivation of lettuce in separate farms. The heavy metal concentrations in the harvested lettuce were measured by the same procedure. The results showed that the main part of heavy metals in the raw sludge was in the liquid part (67%), while, the main part of heavy metals in the anaerobically digested samples was in the solid part of the sludge. Because of washout of dissolved heavy metals in the liquid part of the sludge, the lettuce cultivated by anaerobically digested sludge had higher content of the heavy metals in comparison to that of the lettuce cultivated by the raw sludge. This study showed that application of anaerobically digested sludge can increase the bioaccumulation rate of heavy metals in the crops and induce more human health risk.
    Keywords anaerobic digestion ; arsenic ; bioaccumulation ; boric acid ; cadmium ; crop production ; crops ; farms ; guidelines ; heavy metals ; hydrochloric acid ; Lactuca sativa ; lead ; lettuce ; liquids ; mercury ; nitric acid ; pollutants ; risk ; sludge ; soil amendments
    Language English
    Dates of publication 2019-04
    Size p. 514-520.
    Publishing place Springer US
    Document type Article
    ZDB-ID 445336-0
    ISSN 1559-0720 ; 0163-4984
    ISSN (online) 1559-0720
    ISSN 0163-4984
    DOI 10.1007/s12011-018-1422-y
    Database NAL-Catalogue (AGRICOLA)

    More links

    Kategorien

To top