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  1. Article ; Online: In vitro effect of diazoxon on cell signaling and second messengers in Nile tilapia (Oreochromis niloticus) leukocytes.

    Camacho-Pérez, Milton Rafael / Díaz-Resendiz, Karina Janice Guadalupe / Ortiz-Butrón, Rocío / Covantes-Rosales, Carlos Eduardo / Benitez-Trinidad, Alma Betsaida / Girón-Pérez, Daniel Alberto / Toledo-Ibarra, Gladys Alejandra / Pavón, Lenin / Girón-Pérez, Manuel Iván

    Journal of leukocyte biology

    2024  

    Abstract: The physiological and molecular responses of leukocytes are altered by organophosphate pesticides (OPs). Some reports have shown that diazinon (DZN) causes immunotoxic effects; diazoxon (DZO), the oxon metabolite of DZN, is attributed to influence the ... ...

    Abstract The physiological and molecular responses of leukocytes are altered by organophosphate pesticides (OPs). Some reports have shown that diazinon (DZN) causes immunotoxic effects; diazoxon (DZO), the oxon metabolite of DZN, is attributed to influence the immune response by affecting the leukocyte cholinergic system. In this study, the in vitro effects of DZO on molecules involved in cell signaling (cAMP, IP3, DAG, JAK1, and STAT3), which play a crucial role in the activation, differentiation, and survival of leukocytes, were evaluated. Data indicate that DZO leads to a decrease in cAMP concentration and an increase in basal IP3 levels. However, DZO does not affect basal levels of JAK1 and STAT3 phosphorylation. Instead, DZO inhibits leukocyte responsiveness to PMA and ionomycin, substances that, under normal conditions, enhance JAK/STAT signaling. These findings demonstrate that DZO significantly affects key molecular parameters related to cell signaling.
    Language English
    Publishing date 2024-03-28
    Publishing country England
    Document type Journal Article
    ZDB-ID 605722-6
    ISSN 1938-3673 ; 0741-5400
    ISSN (online) 1938-3673
    ISSN 0741-5400
    DOI 10.1093/jleuko/qiae081
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Organophosphate-Pesticide-Mediated Immune Response Modulation in Invertebrates and Vertebrates.

    Bernal-González, Karime Guadalupe / Covantes-Rosales, Carlos Eduardo / Camacho-Pérez, Milton Rafael / Mercado-Salgado, Ulises / Barajas-Carrillo, Victor Wagner / Girón-Pérez, Daniel Alberto / Montoya-Hidalgo, Ashley Carolina / Díaz-Resendiz, Karina Janice Guadalupe / Barcelos-García, Rocío Guadalupe / Toledo-Ibarra, Gladys Alejandra / Girón-Pérez, Manuel Iván

    International journal of molecular sciences

    2023  Volume 24, Issue 6

    Abstract: Organophosphate pesticides (OPs) have greatly facilitated food production worldwide, and their use is not limited to agriculture and the control of pests and disease vectors. However, these substances can directly affect the immune response of non-target ...

    Abstract Organophosphate pesticides (OPs) have greatly facilitated food production worldwide, and their use is not limited to agriculture and the control of pests and disease vectors. However, these substances can directly affect the immune response of non-target organisms. In this sense, exposure to OPs can have negative effects on innate and adaptive immunity, promoting deregulation in humoral and cellular processes such as phagocytosis, cytokine expression, antibody production, cell proliferation, and differentiation, which are crucial mechanisms for host defense against external agents. This review focuses on the scientific evidence of exposure to OPs and their toxic effects on the immune system of non-target organisms (invertebrates and vertebrates) from a descriptive perspective of the immuno-toxic mechanisms associated with susceptibility to the development of bacterial, viral, and fungal infectious diseases. During the exhaustive review, we found that there is an important gap in the study of non-target organisms, examples of which are echinoderms and chondrichthyans. It is therefore important to increase the number of studies on other species directly or indirectly affected by Ops, to assess the degree of impact at the individual level and how this affects higher levels, such as populations and ecosystems.
    MeSH term(s) Animals ; Ecosystem ; Invertebrates ; Insecticides ; Vertebrates ; Organophosphorus Compounds ; Immunity ; Organophosphates ; Pesticides/toxicity
    Chemical Substances Insecticides ; Organophosphorus Compounds ; Organophosphates ; Pesticides
    Language English
    Publishing date 2023-03-10
    Publishing country Switzerland
    Document type Journal Article ; Review
    ZDB-ID 2019364-6
    ISSN 1422-0067 ; 1422-0067 ; 1661-6596
    ISSN (online) 1422-0067
    ISSN 1422-0067 ; 1661-6596
    DOI 10.3390/ijms24065360
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Loss of mitochondrial membrane potential (ΔΨ

    Díaz-Resendiz, Karina Janice Guadalupe / Benitez-Trinidad, Alma Betsaida / Covantes-Rosales, Carlos Eduardo / Toledo-Ibarra, Gladys Alejandra / Ortiz-Lazareno, Pablo Cesar / Girón-Pérez, Daniel Alberto / Bueno-Durán, Adela Yolanda / Pérez-Díaz, Daniela Alejandra / Barcelos-García, Rocío Guadalupe / Girón-Pérez, Manuel Iván

    Journal of leukocyte biology

    2022  Volume 112, Issue 1, Page(s) 23–29

    Abstract: The mitochondrial membrane potential ( ... ...

    Abstract The mitochondrial membrane potential (ΔΨ
    MeSH term(s) COVID-19/complications ; Female ; Humans ; Leukocytes ; Male ; Membrane Potential, Mitochondrial ; Mitochondria/metabolism
    Language English
    Publishing date 2022-03-31
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 605722-6
    ISSN 1938-3673 ; 0741-5400
    ISSN (online) 1938-3673
    ISSN 0741-5400
    DOI 10.1002/JLB.3MA0322-279RRR
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Organophosphorus Pesticides as Modulating Substances of Inflammation through the Cholinergic Pathway.

    Camacho-Pérez, Milton Rafael / Covantes-Rosales, Carlos Eduardo / Toledo-Ibarra, Gladys Alejandra / Mercado-Salgado, Ulises / Ponce-Regalado, María Dolores / Díaz-Resendiz, Karina Janice Guadalupe / Girón-Pérez, Manuel Iván

    International journal of molecular sciences

    2022  Volume 23, Issue 9

    Abstract: Organophosphorus pesticides (OPs) are widespread insecticides used for pest control in agricultural activities and the control of the vectors of human and animal diseases. However, OPs' neurotoxic mechanism involves cholinergic components, which, beyond ... ...

    Abstract Organophosphorus pesticides (OPs) are widespread insecticides used for pest control in agricultural activities and the control of the vectors of human and animal diseases. However, OPs' neurotoxic mechanism involves cholinergic components, which, beyond being involved in the transmission of neuronal signals, also influence the activity of cytokines and other pro-inflammatory molecules; thus, acute and chronic exposure to OPs may be related to the development of chronic degenerative pathologies and other inflammatory diseases. The present article reviews and discusses the experimental evidence linking inflammatory process with OP-induced cholinergic dysregulation, emphasizing the molecular mechanisms related to the role of cytokines and cellular alterations in humans and other animal models, and possible therapeutic targets to inhibit inflammation.
    MeSH term(s) Animals ; Cholinergic Agents ; Cytokines ; Inflammation ; Organophosphorus Compounds/toxicity ; Pesticides/toxicity
    Chemical Substances Cholinergic Agents ; Cytokines ; Organophosphorus Compounds ; Pesticides
    Language English
    Publishing date 2022-04-20
    Publishing country Switzerland
    Document type Journal Article ; Review
    ZDB-ID 2019364-6
    ISSN 1422-0067 ; 1422-0067 ; 1661-6596
    ISSN (online) 1422-0067
    ISSN 1422-0067 ; 1661-6596
    DOI 10.3390/ijms23094523
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Hematologic analysis of hospitalized patients and outpatients infected with SARS-CoV-2 and possible use as a prognostic biomarker.

    Girón-Pérez, Daniel Alberto / Nava-Piedra, Ulises Netzahualcoyotl / Esquivel-Esparza, Zulema Estefania / Benitez-Trinidad, Alma Betsaida / Barcelos-Garcia, Rocio Guadalupe / Vázquez-Pulido, Erica Yolanda / Toledo-Ibarra, Gladys Alejandra / Ventura-Ramón, Guadalupe Herminia / Covantes-Rosales, Carlos Eduardo / Barajas-Carrillo, Victor Wagner / Ojeda-Durán, Ansonny Jhovanny / Díaz-Resendiz, Karina Janice Guadalupe / Mercado-Salgado, Ulises / Girón-Pérez, Manuel Iván

    Experimental hematology

    2023  Volume 119-120, Page(s) 21–27

    Abstract: Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection is a global health problem; this has caused thousands of deaths around the world. This infection induces hematologic alterations, and it is necessary to recognize predictive ... ...

    Abstract Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection is a global health problem; this has caused thousands of deaths around the world. This infection induces hematologic alterations, and it is necessary to recognize predictive biomarkers to address the need for hospitalization or the severity of the disease. This study aimed to analyze different parameters in outpatients and hospitalized patients infected with SARS-CoV-2 and determine whether hematic biometry can be used for prognosis rapidly. We analyzed 689 patients, of whom 355 were outpatients (162 women and 193 men) and 334 required hospitalization (197 men and 137 women). The average age of the hospitalized patients was 46 years (men, 49 years; women, 52 years), whereas the average age of the outpatients was 49 years (men, 51 years; women, 44 years). Hematologic parameters were analyzed and compared between the outpatients and hospitalized patients. The patients were divided into groups by age and sex. We found that in the hospitalized patients, the erythrocyte, hematocrit, and hemoglobin levels decreased, whereas the outpatients did not experience changes in the erythroid series. In leukocytes, these increased significantly, as they did in neutrophils; however, lymphocytopenia was observed. In the outpatients, we observed normal levels of neutrophils and lymphopenia. We can conclude that hematic biometry can be used as a biomarker, and the relation between neutrophils and lymphocytes is indicated for understanding the development and prognosis of the disease.
    MeSH term(s) Male ; Humans ; Female ; Middle Aged ; SARS-CoV-2 ; COVID-19 ; Outpatients ; Prognosis ; Hospitalization
    Language English
    Publishing date 2023-01-06
    Publishing country Netherlands
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 185107-x
    ISSN 1873-2399 ; 0531-5573 ; 0301-472X
    ISSN (online) 1873-2399
    ISSN 0531-5573 ; 0301-472X
    DOI 10.1016/j.exphem.2022.12.006
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: Comparative Analysis of Age, Sex, and Viral Load in Outpatients during the Four Waves of SARS-CoV-2 in A Mexican Medium-Sized City.

    Covantes-Rosales, Carlos Eduardo / Barajas-Carrillo, Victor Wagner / Girón-Pérez, Daniel Alberto / Toledo-Ibarra, Gladys Alejandra / Díaz-Reséndiz, Karina Janice Guadalupe / Navidad-Murrieta, Migdalia Sarahy / Ventura-Ramón, Guadalupe Herminia / Pulido-Muñoz, Mirtha Elena / Mercado-Salgado, Ulises / Ojeda-Durán, Ansonny Jhovanny / Argüero-Fonseca, Aimée / Girón-Pérez, Manuel Iván

    International journal of environmental research and public health

    2022  Volume 19, Issue 9

    Abstract: Governments have implemented measures to minimize SARS-CoV-2 spread. However, these measures were relaxed, and the appearance of new variants has prompted periods of high contagion known as waves. In Mexico, four waves distributed between July and August ...

    Abstract Governments have implemented measures to minimize SARS-CoV-2 spread. However, these measures were relaxed, and the appearance of new variants has prompted periods of high contagion known as waves. In Mexico, four waves distributed between July and August 2020, January and February 2021, August and September 2021, and January and February 2022 have appeared. Current health policies discourage mass sampling, preferring to focus on the corrective treatment of severe cases. Outpatients are only advised to undergo brief voluntary confinement and symptomatic treatment, with no follow-up. Therefore, the present study aimed to analyze sex, age, and viral load in outpatients during the four waves in a medium-sized city in Mexico. For each wave, the date of peak contagion was identified, and data were collected within ±15 days. In this regard, data from 916 patients (434 men and 482 women) were analyzed. The age range of positive patients (37-45 years) presented a higher frequency during the first and third waves, while 28-36 years was the most frequent age range during the second and fourth waves, while the viral load values were significantly higher, for both sexes, during the fourth wave. Obtained data of COVID-19 prevalence in population segments can be used for decision-making in the design of effective public health policies.
    MeSH term(s) Adult ; COVID-19/epidemiology ; Female ; Humans ; Male ; Middle Aged ; Outpatients ; SARS-CoV-2 ; Serologic Tests ; Viral Load
    Language English
    Publishing date 2022-05-08
    Publishing country Switzerland
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2175195-X
    ISSN 1660-4601 ; 1661-7827
    ISSN (online) 1660-4601
    ISSN 1661-7827
    DOI 10.3390/ijerph19095719
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: Organophosphate-Pesticide-Mediated Immune Response Modulation in Invertebrates and Vertebrates

    Karime Guadalupe Bernal-González / Carlos Eduardo Covantes-Rosales / Milton Rafael Camacho-Pérez / Ulises Mercado-Salgado / Victor Wagner Barajas-Carrillo / Daniel Alberto Girón-Pérez / Ashley Carolina Montoya-Hidalgo / Karina Janice Guadalupe Díaz-Resendiz / Rocío Guadalupe Barcelos-García / Gladys Alejandra Toledo-Ibarra / Manuel Iván Girón-Pérez

    International Journal of Molecular Sciences, Vol 24, Iss 5360, p

    2023  Volume 5360

    Abstract: Organophosphate pesticides (OPs) have greatly facilitated food production worldwide, and their use is not limited to agriculture and the control of pests and disease vectors. However, these substances can directly affect the immune response of non-target ...

    Abstract Organophosphate pesticides (OPs) have greatly facilitated food production worldwide, and their use is not limited to agriculture and the control of pests and disease vectors. However, these substances can directly affect the immune response of non-target organisms. In this sense, exposure to OPs can have negative effects on innate and adaptive immunity, promoting deregulation in humoral and cellular processes such as phagocytosis, cytokine expression, antibody production, cell proliferation, and differentiation, which are crucial mechanisms for host defense against external agents. This review focuses on the scientific evidence of exposure to OPs and their toxic effects on the immune system of non-target organisms (invertebrates and vertebrates) from a descriptive perspective of the immuno-toxic mechanisms associated with susceptibility to the development of bacterial, viral, and fungal infectious diseases. During the exhaustive review, we found that there is an important gap in the study of non-target organisms, examples of which are echinoderms and chondrichthyans. It is therefore important to increase the number of studies on other species directly or indirectly affected by Ops, to assess the degree of impact at the individual level and how this affects higher levels, such as populations and ecosystems.
    Keywords organophosphorus pesticides ; diseases ; immune system ; immunotoxicity ; infections ; non-target organisms ; Biology (General) ; QH301-705.5 ; Chemistry ; QD1-999
    Language English
    Publishing date 2023-03-01T00:00:00Z
    Publisher MDPI AG
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  8. Article ; Online: Organophosphorus Pesticides as Modulating Substances of Inflammation through the Cholinergic Pathway

    Milton Rafael Camacho-Pérez / Carlos Eduardo Covantes-Rosales / Gladys Alejandra Toledo-Ibarra / Ulises Mercado-Salgado / María Dolores Ponce-Regalado / Karina Janice Guadalupe Díaz-Resendiz / Manuel Iván Girón-Pérez

    International Journal of Molecular Sciences, Vol 23, Iss 4523, p

    2022  Volume 4523

    Abstract: Organophosphorus pesticides (OPs) are widespread insecticides used for pest control in agricultural activities and the control of the vectors of human and animal diseases. However, OPs’ neurotoxic mechanism involves cholinergic components, which, beyond ... ...

    Abstract Organophosphorus pesticides (OPs) are widespread insecticides used for pest control in agricultural activities and the control of the vectors of human and animal diseases. However, OPs’ neurotoxic mechanism involves cholinergic components, which, beyond being involved in the transmission of neuronal signals, also influence the activity of cytokines and other pro-inflammatory molecules; thus, acute and chronic exposure to OPs may be related to the development of chronic degenerative pathologies and other inflammatory diseases. The present article reviews and discusses the experimental evidence linking inflammatory process with OP-induced cholinergic dysregulation, emphasizing the molecular mechanisms related to the role of cytokines and cellular alterations in humans and other animal models, and possible therapeutic targets to inhibit inflammation.
    Keywords organophosphorus pesticides ; cholinergic system ; inflammation ; Biology (General) ; QH301-705.5 ; Chemistry ; QD1-999
    Language English
    Publishing date 2022-04-01T00:00:00Z
    Publisher MDPI AG
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  9. Article ; Online: Effect of Fucoidan on the Mitochondrial Membrane Potential (ΔΨm) of Leukocytes from Patients with Active COVID-19 and Subjects That Recovered from SARS-CoV-2 Infection.

    Díaz-Resendiz, Karina Janice Guadalupe / Covantes-Rosales, Carlos Eduardo / Benítez-Trinidad, Alma Betsaida / Navidad-Murrieta, Migdalia Sarahy / Razura-Carmona, Francisco Fabian / Carrillo-Cruz, Christian Daniel / Frias-Delgadillo, Edwin Jaime / Pérez-Díaz, Daniela Alejandra / Díaz-Benavides, Matxil Violeta / Zambrano-Soria, Mercedes / Ventura-Ramón, Guadalupe Herminia / Romero-Castro, Aurelio / Alam-Escamilla, David / Girón-Pérez, Manuel Iván

    Marine drugs

    2022  Volume 20, Issue 2

    Abstract: Fucoidan is a polysaccharide obtained from marine brown algae, with anti-inflammatory, anti-viral, and immune-enhancing properties, thus, fucoidan may be used as an alternative treatment (complementary to prescribed medical therapy) for COVID-19 recovery. ...

    Abstract Fucoidan is a polysaccharide obtained from marine brown algae, with anti-inflammatory, anti-viral, and immune-enhancing properties, thus, fucoidan may be used as an alternative treatment (complementary to prescribed medical therapy) for COVID-19 recovery. This work aimed to determine the ex-vivo effects of treatment with fucoidan (20 µg/mL) on mitochondrial membrane potential (ΔΨm, using a cationic cyanine dye, 3,3'-dihexyloxacarbocyanine iodide (DiOC
    MeSH term(s) Adult ; Aged ; COVID-19 ; Female ; Humans ; Leukocytes, Mononuclear/drug effects ; Leukocytes, Mononuclear/physiology ; Male ; Membrane Potential, Mitochondrial/drug effects ; Middle Aged ; Mitochondria/drug effects ; Phaeophyceae/chemistry ; Polysaccharides/chemistry ; Polysaccharides/pharmacology ; SARS-CoV-2 ; Young Adult
    Chemical Substances Polysaccharides ; fucoidan (9072-19-9)
    Language English
    Publishing date 2022-01-24
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2175190-0
    ISSN 1660-3397 ; 1660-3397
    ISSN (online) 1660-3397
    ISSN 1660-3397
    DOI 10.3390/md20020099
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article ; Online: Correlation of hematological parameters and cycle threshold in ambulatory patients with SARS-CoV-2 infection.

    Girón-Pérez, Daniel Alberto / Benitez-Trinidad, Alma Betsaida / Ruiz-Manzano, Rocio Alejandra / Toledo-Ibarra, Gladys Alejandra / Ventura-Ramón, Guadalupe Herminia / Covantes-Rosales, Carlos Eduardo / Ojeda-Durán, Ansonny Jhovany / Díaz-Reséndiz, Karina Janice Guadalupe / Mercado-Salgado, Ulises / Girón-Pérez, Manuel Iván

    International journal of laboratory hematology

    2021  Volume 43, Issue 4, Page(s) 873–880

    Abstract: Introduction: Former studies have shown that hematologic parameters are affected by the SARS-CoV-2 infection which has caused a global health problem. Therefore, this research aims to identify the most frequent symptoms and comorbidities in SARS-CoV-2 ... ...

    Abstract Introduction: Former studies have shown that hematologic parameters are affected by the SARS-CoV-2 infection which has caused a global health problem. Therefore, this research aims to identify the most frequent symptoms and comorbidities in SARS-CoV-2 infected outpatients; besides, to analyze hematological parameters and their correlation with cycle threshold (Ct) values.
    Methods: We analyzed a total of sixty outpatients with SARS-CoV-2 infection. They were divided according to sex. Afterward, a questionnaire was carried out to find out their symptoms and comorbidities. Additionally, blood biometry data were correlated with the Ct value, respectively.
    Results: Sixty patients were analyzed; the mean age was 43 years. All patients were from Nayarit, Mexico. The frequency index showed that the main symptoms were headache and anosmia, and the comorbidities were obesity and smoking. The analysis of blood biometry showed a clear increase in red blood cells (RBC) related parameters in women. In both sexes an increase in the number of white blood cells (WBC) was observed. Also, all the hematological alterations correlated with the grade of infection.
    Conclusion: Headache and anosmia are the most common symptoms according to the frequency index, the main comorbidities were obesity and smoking. Also, there is a Ct value correlation with hematological parameters (WBC, mean corpuscular volume, mean corpuscular hemoglobin, hemoglobin); they can be used as a prognostic marker of infection.
    MeSH term(s) Adult ; Aged ; COVID-19/blood ; COVID-19/diagnosis ; COVID-19/epidemiology ; Erythrocyte Count ; Erythrocyte Indices ; Female ; Hematocrit ; Humans ; Leukocyte Count ; Male ; Mexico/epidemiology ; Middle Aged ; SARS-CoV-2/isolation & purification ; Young Adult
    Language English
    Publishing date 2021-06-01
    Publishing country England
    Document type Journal Article
    ZDB-ID 2268590-X
    ISSN 1751-553X ; 1751-5521 ; 0141-9854
    ISSN (online) 1751-553X
    ISSN 1751-5521 ; 0141-9854
    DOI 10.1111/ijlh.13606
    Database MEDical Literature Analysis and Retrieval System OnLINE

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