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Barros Oliveira CV, Paulino da Silva ME, de Lima JR, Tavares Moreira AM, Mendes Brito MJ, Coelho Gonçalves CA, Lemos de Barros JE, de Oliveira RM, Kamdem JP, Barros LM, Duarte AE. Correlations between the degree of infection by wild strain of Toxoplasma gondii in vitro and porcine hematological parameters. Exp Parasitol 2024; 261:108754. [PMID: 38636935 DOI: 10.1016/j.exppara.2024.108754] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2023] [Revised: 04/02/2024] [Accepted: 04/10/2024] [Indexed: 04/20/2024]
Abstract
The apicomplexa Toxoplasma gondii is capable of actively proliferating in numerous types of nucleated cells, and therefore has a high potential for dissemination and resistance. Thus, the present work aimed to correlate the inoculum concentrations and amount of post-infection parasites with porcine hematological parameters (including biochemistry) through in vitro culture. Porcine blood was incubated with different concentrations of parasites (1.2 × 107, 6/3/1.5 × 106 cells/mL), then the concentrations of red blood cells (RBC) and their morphology, total and differential leukocytes, and free peptides were evaluated. In addition, eight different blood samples analyzed before inoculation, where subsequent multivariate analysis was applied to correlate different variables with trophozoite concentration. The results showed no significant variation (p < 0.05) in the relative levels of free peptides, or the relative percentage of RBC at all the parasite concentrations tested. However, the normalized percentages of leukocytes and neutrophils showed a significant reduction, while those of lymphocytes, eosinophils and monocytes showed the opposite behavior. Semi-automatic processing of images exhibited significant microcytosis and hypochromia. The multivariate analysis revealed a positive correlation between the amount number of protozoa (AP) and the variables: "Red cells" and "Neutrophils", an indifference between the AP and the content of free peptides, and the concentration of monocytes in the samples; and a negative correlation for AP and the percentages of lymphocytes and eosinophils. Our results suggest that specific changes in hematological parameters may be associated with different degrees of parasitemia, demanding a thorough diagnostic process and adequate treatment.
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Affiliation(s)
| | - Maria Elenilda Paulino da Silva
- Laboratory for Research and Diagnosis of Tropical Diseases - LPDDT, Federal University of Pernambuco - UFPE, Recife, 50670-901, Brazil
| | - Jailson Renato de Lima
- Laboratory of Agricultural Entomology - LEA, Federal University of Cariri, Crato, 63113-140, Ceará, Brazil
| | - Amanda Maria Tavares Moreira
- Laboratory of Biology and Toxicology - BIOTOX, Regional University of Cariri - URCA, Crato, 63105-000, Ceará, Brazil
| | - Maria Jéssica Mendes Brito
- Center for Biological and Health Sciences - CCBS, Department of Biological Sciences, Regional University of Cariri - URCA, 63105-000, Crato, Ceara, Brazil
| | - Cicera Alane Coelho Gonçalves
- Laboratory of Semi-Arid Bioprospecting and Alternative Methods- LABSEMA, Regional University of Cariri - URCA, Crato, 63105-000, Ceará, Brazil
| | - João Eudes Lemos de Barros
- Laboratory of Pharmacology and Molecular Chemistry, Regional University of Cariri - URCA, Crato, 63105-000, Ceará, Brazil
| | | | - Jean Paul Kamdem
- Laboratory of Biology and Toxicology - BIOTOX, Regional University of Cariri - URCA, Crato, 63105-000, Ceará, Brazil
| | - Luiz Marivando Barros
- Laboratory of Plant Ecophysiology - LECOV, Regional University of Cariri - URCA, Crato, 63105-000, Ceará, Brazil
| | - Antonia Eliene Duarte
- Laboratory of Biology and Toxicology - BIOTOX, Regional University of Cariri - URCA, Crato, 63105-000, Ceará, Brazil
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dos Santos PV, de Toledo DNM, de Souza DMS, Menezes TP, Perucci LO, Silva ZM, Teixeira DC, Vieira EWR, de Andrade-Neto VF, Guimarães NS, Talvani A. The imbalance in the relationship between inflammatory and regulatory cytokines during gestational toxoplasmosis can be harmful to fetuses: A systematic review. Front Immunol 2023; 14:1074760. [PMID: 36742306 PMCID: PMC9889920 DOI: 10.3389/fimmu.2023.1074760] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Accepted: 01/04/2023] [Indexed: 01/19/2023] Open
Abstract
Objective To evaluate the available information on inflammatory and regulatory plasma mediators in pregnant women (PW) diagnosed with toxoplasmosis. Source: The PubMed, Embase, Scopus, and Lilacs databases were evaluated until October 2022. Study eligibility criteria: This review was carried out following the PRISMA and registered on the PROSPERO platform (CRD42020203951). Studies that reported inflammatory mediators in PW with toxoplasmosis were considered. Evaluation methods After excluding duplicate articles, two authors independently carried out the process of title and abstract exclusion, and a third resolved disagreements when necessary. The full text was evaluated to detect related articles. The extraction table was built from the following data: Author, year of publication, journal name and impact factors, country, study design, number of gestations and maternal age (years), gestational period, diagnosis of toxoplasmosis, levels of inflammatory markers, laboratory tests, and clinical significance. Methodological quality was assessed using Joanna Briggs Institute tools. Results Of the 1,024 studies reported, only eight were included. Of the 868 PW included in this review, 20.2% were IgM+/IgG- and 50.8% were IgM-/IgG+ to T. gondii, and 29.0% uninfected. Infected PW presented higher plasma levels ofIL-5, IL-6, IL-8, IL-17, CCL5, and IL-10. Regarding the methodological quality, four studies obtained high quality. Data from this review pointed out the maintenance of the inflammatory pattern during pregnancy with a closely related to the parasite. Conclusion Immune status in PW defined the course of the T. gondii infection, where the equilibrium between inflammatory and regulatory cytokines mitigated the harmful placenta and fetus effects. Systematic review registration https://www.crd.york.ac.uk/prospero/, identifier CRD420203951.
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Affiliation(s)
- Priscilla Vilela dos Santos
- Laboratory of the Immunobiology of Inflammation, Department of Biological Sciences/Institute of Exact and Biological Sciences (ICEB), Federal University of Ouro Preto, Ouro Preto, MG, Brazil
- Graduate Program in Health and Nutrition, School of Nutrition, Federal University of Ouro Preto, Ouro Preto, MG, Brazil
| | - Débora Nonato Miranda de Toledo
- Laboratory of the Immunobiology of Inflammation, Department of Biological Sciences/Institute of Exact and Biological Sciences (ICEB), Federal University of Ouro Preto, Ouro Preto, MG, Brazil
- Graduate Program in Health and Nutrition, School of Nutrition, Federal University of Ouro Preto, Ouro Preto, MG, Brazil
| | - Débora Maria Soares de Souza
- Laboratory of the Immunobiology of Inflammation, Department of Biological Sciences/Institute of Exact and Biological Sciences (ICEB), Federal University of Ouro Preto, Ouro Preto, MG, Brazil
- Graduate Program in Health and Nutrition, School of Nutrition, Federal University of Ouro Preto, Ouro Preto, MG, Brazil
| | - Tatiana Prata Menezes
- Laboratory of the Immunobiology of Inflammation, Department of Biological Sciences/Institute of Exact and Biological Sciences (ICEB), Federal University of Ouro Preto, Ouro Preto, MG, Brazil
- Graduate Program in Health and Nutrition, School of Nutrition, Federal University of Ouro Preto, Ouro Preto, MG, Brazil
| | - Luiza Oliveira Perucci
- Laboratory of the Immunobiology of Inflammation, Department of Biological Sciences/Institute of Exact and Biological Sciences (ICEB), Federal University of Ouro Preto, Ouro Preto, MG, Brazil
| | - Zolder Marinho Silva
- Laboratory of the Immunobiology of Inflammation, Department of Biological Sciences/Institute of Exact and Biological Sciences (ICEB), Federal University of Ouro Preto, Ouro Preto, MG, Brazil
- Graduate Program in Health and Nutrition, School of Nutrition, Federal University of Ouro Preto, Ouro Preto, MG, Brazil
| | | | - Ed Wilson Rodrigues Vieira
- Department of Maternal and Child Nursing and Public Health, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil
| | - Valter Ferreira de Andrade-Neto
- Laboratory of Malaria and Toxoplasmosis Biology, Department of Microbiology and Parasitology, Federal University of the Rio Grande do Norte, Natal, RN, Brazil
| | - Nathalia Sernizon Guimarães
- Graduate Program in Health and Nutrition, School of Nutrition, Federal University of Ouro Preto, Ouro Preto, MG, Brazil
| | - André Talvani
- Laboratory of the Immunobiology of Inflammation, Department of Biological Sciences/Institute of Exact and Biological Sciences (ICEB), Federal University of Ouro Preto, Ouro Preto, MG, Brazil
- Graduate Program in Health and Nutrition, School of Nutrition, Federal University of Ouro Preto, Ouro Preto, MG, Brazil
- Graduate Program of Health Science, Infectiology and Tropical Medicine, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil
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Lee PF, Lee CY, Tsai CC, Chu LC, Huang KL, Cheng HH, You HL, Huang HN, Lan KC, Hsu TY. Assessment of the clinical benefits of prenatal screening for toxoplasmosis in southern Taiwan. Taiwan J Obstet Gynecol 2022; 61:830-836. [PMID: 36088052 DOI: 10.1016/j.tjog.2021.08.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/04/2021] [Indexed: 10/14/2022] Open
Abstract
OBJECTIVE The present study aimed to investigate the seroprevalence and risk factors for toxoplasmosis among pregnant women in southern Taiwan and to determine the clinical benefits of screening for the same. MATERIALS AND METHODS The current study included 458 pregnant women who received prenatal care from the first trimester at the Kaohsiung and Chiayi Chang Gung Memorial Hospitals during the time period from 2014 to 2015. Serological tests performed to detect the presence of Toxoplasma IgG and IgM antibodies. Amniocentesis was scheduled and real-time polymerase chain reaction (PCR) was employed to detect Toxoplasma DNA. Moreover, the maternal characteristics and risk factors, perinatal outcomes related to the seropositivity for Toxoplasma infection were analyzed. RESULTS Among the pregnant patients included in the current study, 39/458 (8.5%) were IgG+ and 2/458 (0.6%) were IgM+. The present study analyzed the maternal characteristics and risk factors, perinatal outcome pertaining to the IgG seropositive group by means of the multiple logistic regression analysis revealed a female predominance (10.8%), compared to the males (6.4%), (adjusted OR = 0.48 (95%, 0.24-0.98), P = 0.043∗). The number cases with gestational age above 37 weeks at the time of delivery was significantly lower, compared to the cases below 37 weeks (adjusted OR = 0.32 (0.12-0.94), P = 0.038∗). Among one case with low avidity cannot exclude recent infection, the amniocentesis did not show any evidence of vertical transmission. CONCLUSION The scenario may not warrant general screening and the results will not influence the clinical decisions. Although the present study failed to identify the maternal risk factors related to Toxoplasma infection, the results imply that health education is essential, owing to the slightly higher rate of preterm delivery in the IgG seropositive group.
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Affiliation(s)
- Pei-Fang Lee
- Department of Obstetrics and Gynecology, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Chung-Yuan Lee
- Department of Obstetrics and Gynecology, Chiayi Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Chiayi, Taiwan
| | - Ching-Chang Tsai
- Department of Obstetrics and Gynecology, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Li-Ching Chu
- Department of Obstetrics and Gynecology, Chiayi Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Chiayi, Taiwan
| | - Kun-Long Huang
- Department of Obstetrics and Gynecology, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Hsin-Hsin Cheng
- Department of Obstetrics and Gynecology, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Huey-Ling You
- Department of Laboratory Medicine, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Hsuan-Ning Huang
- Department of Obstetrics and Gynecology, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Kuo-Chung Lan
- Department of Obstetrics and Gynecology, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan.
| | - Te-Yao Hsu
- Department of Obstetrics and Gynecology, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan.
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Tighe PJ, Ryder RR, Todd I, Fairclough LC. ELISA in the multiplex era: potentials and pitfalls. Proteomics Clin Appl 2015; 9:406-22. [PMID: 25644123 PMCID: PMC6680274 DOI: 10.1002/prca.201400130] [Citation(s) in RCA: 251] [Impact Index Per Article: 27.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2014] [Revised: 12/08/2014] [Accepted: 01/19/2015] [Indexed: 12/20/2022]
Abstract
Multiplex immunoassays confer several advantages over widely adopted singleplex immunoassays including increased efficiency at a reduced expense, greater output per sample volume ratios and higher throughput predicating more resolute, detailed diagnostics and facilitating personalised medicine. Nonetheless, to date, relatively few protein multiplex immunoassays have been validated for in vitro diagnostics in clinical/point-of-care settings. This review article will outline the challenges, which must be ameliorated prior to the widespread integration of multiplex immunoassays in clinical settings: (i) biomarker validation; (ii) standardisation of immunoassay design and quality control (calibration and quantification); (iii) availability, stability, specificity and cross-reactivity of reagents; (iv) assay automation and the use of validated algorithms for transformation of raw data into diagnostic results. A compendium of multiplex immunoassays applicable to in vitro diagnostics and a summary of the diagnostic products currently available commercially are included, along with an analysis of the relative states of development for each format (namely planar slide based, suspension and planar/microtitre plate based) with respect to the aforementioned issues.
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Affiliation(s)
- Patrick J Tighe
- School of Life Sciences, The University of Nottingham, Nottingham, UK
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Hung CS, Su HW, Lee YL, Weng HW, Wang YC, Naito T, Tsubouchi A, Wang GC, Fan CK. Seroprevalence, Seroconversion, and Risk Factors for Toxoplasmosis among Pregnant Women in Taipei, Taiwan. Jpn J Infect Dis 2015; 68:312-7. [DOI: 10.7883/yoken.jjid.2014.263] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Affiliation(s)
| | - Hung-Wen Su
- Department of Obstetrics and Gynecology, Wan Fang Hospital
| | - Yu-Luen Lee
- Department of Microbiology and Immunology, College of Public Health and Nutrition, Taipei Medical University
| | - Hui-Wen Weng
- Department of Laboratory Medicine, Wan Fang Hospital
| | - Yin-Chin Wang
- Department of Molecular Parasitology and Tropical Diseases, College of Public Health and Nutrition, Taipei Medical University
- Center for International Tropical Medicine, School of Medicine, College of Medicine, College of Public Health and Nutrition, Taipei Medical University
| | - Toshio Naito
- Department of General Medicine, Juntendo University
- Department of Infection Control Science, Juntendo University
| | - Akiko Tsubouchi
- Research Support Center, School of Medicine, Juntendo University
| | | | - Chia-Kwung Fan
- Department of Molecular Parasitology and Tropical Diseases, College of Public Health and Nutrition, Taipei Medical University
- Center for International Tropical Medicine, School of Medicine, College of Medicine, College of Public Health and Nutrition, Taipei Medical University
- Master Program of Global Health and Development, College of Public Health and Nutrition, Taipei Medical University
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Andiappan H, Nissapatorn V, Sawangjaroen N, Khaing SL, Salibay CC, Cheung MMM, Dungca JZ, Chemoh W, Xiao Teng C, Lau YL, Mat Adenan NA. Knowledge and practice on Toxoplasma infection in pregnant women from Malaysia, Philippines, and Thailand. Front Microbiol 2014; 5:291. [PMID: 24966855 PMCID: PMC4052801 DOI: 10.3389/fmicb.2014.00291] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2014] [Accepted: 05/26/2014] [Indexed: 11/13/2022] Open
Abstract
Toxoplasma gondii, is one of the infectious agents of congenital TORCH infections, causes severe clinical outcomes in fetus and newborns. Nevertheless this life-threatening parasitic disease is preventable by simple preventive measures related to lifestyle during pregnancy. We aim to study on the knowledge about toxoplasmosis and practices that prevents this infection among the pregnant women. Total of 2598 pregnant women from Malaysia, Philippines, and Thailand were randomly surveyed to determine the knowledge and their practices on Toxoplasma infection. The questionnaire covered respondents' general information and knowledge on plausible risks factors, symptoms, timing of infection, prevention knowledge, and preventive behavior regarding Toxoplasma infection. Majority of these pregnant women were in their age group of 20-29 years (50.9%), completed secondary level of education (51.7%), in their second trimester of pregnancies (38.1%), non-parous (36.6%), and had no history of abortion (90.4%). Based on this survey, only 11% of these pregnant women had read, heard, or seen information regarding toxoplasmosis and 3.5% of them were aware of being tested for the infection. A small percentage of these pregnant women knew that T. gondii were shed in the feces of infected cats (19.4%) and sometimes found in the raw or undercooked meat (11.0%). There was 16.1% of responding women knew that toxoplasmosis is caused by an infection. Demographic profiles such as age group, level of education, pregnancy term, and number of children of the pregnant women showed significant association with their responses toward prevention knowledge and preventive behavior related questions (P < 0.05). Thus, it is suggested that health education on toxoplasmosis and primary behavioral practices should be consistently offered to reproductive age women in general and pregnant women in particular. This information could help to reduce vertical transmission of Toxoplasma infection during pregnancy.
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Affiliation(s)
- Hemah Andiappan
- Department of Parasitology, Faculty of Medicine, University of Malaya Kuala Lumpur, Malaysia
| | - Veeranoot Nissapatorn
- Department of Parasitology, Faculty of Medicine, University of Malaya Kuala Lumpur, Malaysia
| | - Nongyao Sawangjaroen
- Department of Microbiology, Faculty of Science, Prince of Songkla University Hat Yai, Songkhla, Thailand
| | - Si-Lay Khaing
- Department of Obstetrics and Gynecology, Faculty of Medicine, University of Malaya Kuala Lumpur, Malaysia
| | - Cristina C Salibay
- Biological Sciences Department, De La Salle University - Dasmariñas Cavite, Philippines
| | - Mary Mae M Cheung
- College of Arts and Sciences, Notre Dame of Dadiangas University General Santos, Philippines
| | - Julieta Z Dungca
- School of Science and Technology, Centro Escolar University Manila, Philippines
| | - Waenurama Chemoh
- Department of Microbiology, Faculty of Science, Prince of Songkla University Hat Yai, Songkhla, Thailand
| | - Ching Xiao Teng
- Department of Parasitology, Faculty of Medicine, University of Malaya Kuala Lumpur, Malaysia
| | - Yee-Ling Lau
- Department of Parasitology, Faculty of Medicine, University of Malaya Kuala Lumpur, Malaysia
| | - Noor A Mat Adenan
- Department of Obstetrics and Gynecology, Faculty of Medicine, University of Malaya Kuala Lumpur, Malaysia
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Andiappan H, Nissapatorn V, Sawangjaroen N, Chemoh W, Lau YL, Kumar T, Onichandran S, Suwanrath C, Chandeying V. Toxoplasma infection in pregnant women: a current status in Songklanagarind hospital, southern Thailand. Parasit Vectors 2014; 7:239. [PMID: 24886651 PMCID: PMC4035750 DOI: 10.1186/1756-3305-7-239] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2014] [Accepted: 05/19/2014] [Indexed: 11/16/2022] Open
Abstract
Background Toxoplasmosis, being one of the TORCH’s infections in pregnant women, is caused by Toxoplasma gondii, an obligate intracellular protozoan parasite. This parasitic infection in pregnancy congenitally causes severe outcomes to their fetus and newborn. This study aimed to determine the seroprevalence and stages of Toxoplasma infection in pregnant women and its associated risks exposures. Methods The study was conducted within the pregnant women attending the antenatal clinic (ANC) at Songklanagarind hospital, Hat Yai, Songkhla province, Thailand. The sera of a total of 760 consecutive pregnant women were screened using standard commercial ELISA kits for detection of anti-Toxoplasma IgG and IgM antibodies. IgG avidity in the seropositive for both anti-Toxoplasma IgG and IgM antibodies were also assessed. The pregnant women’s socio-demographic, obstetrics and risk factors associated with Toxoplasma seropositivity data were analyzed using univariate and multivariate analyses. Results From the total 760 pregnant women, 190 (25%, 95% CI = 22.05-28.20) were positive for anti-Toxoplasma antibodies. Of these, 167 (22.0%, 95% CI = 19.0-25.0) were positive for only anti-Toxoplasma IgG antibody and 23 (3.0%, 95% CI = 2.0-4.0) were positive for both anti-Toxoplasma IgG and IgM antibodies. All these samples were high avidity, indicated the infection occured prior to four to five months. By applying statistical univariate analysis, age group, occupation and sources of drinking water showed a significant association with Toxoplasma seropositivity (p < 0.05). Multivariate logistic regression analysis further indicated that the significant factors associated with Toxoplasma seropositivity are age ≥26 (OR = 1.65, 95% CI = 1.11-2.44), working as laborer (OR = 1.57, 95% CI = 1.13-2.18) and drinking unclean (piped/tap/rain) water (OR = 1.75, 95% CI = 1.08-2.84). Conclusion The pregnant women in the active age group, working as laborers and exposure to unclean drinking water from various sources were at higher risk of Toxoplasma infection. Therefore, health education and the awareness of risk exposures regarding this parasitic disease are required to minimize the effects of this parasitic infection in pregnant women as well as in the general population.
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Affiliation(s)
| | - Veeranoot Nissapatorn
- Department of Parasitology, Faculty of Medicine, University of Malaya, Kuala Lumpur 50603, Malaysia.
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