1
|
Sun H, Fan J, Chu H, Gao Y, Fang J, Wu Q, Ding H, Zhuo X, Kong Q, Lv H, Zheng B, Lu S. RPA-CRISPR/Cas12a-LFA combined with a digital visualization instrument to detect Toxoplasma gondii in stray dogs and cats in Zhejiang province, China. Microbiol Spectr 2024; 12:e0399823. [PMID: 38809001 PMCID: PMC11218441 DOI: 10.1128/spectrum.03998-23] [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: 11/30/2023] [Accepted: 04/14/2024] [Indexed: 05/30/2024] Open
Abstract
Toxoplasma gondii, which causes toxoplasmosis, is prevalent in warm-blooded animals, such as cats, dogs, and humans. T. gondii causes economic losses to livestock production and represents a potential risk to public health. Dogs and cats are common hosts in the epidemiology of toxoplasmosis. The current molecular diagnostic tools for T. gondii infection require high technical skills, a laboratory environment, and complex instruments. Herein, we developed a recombinase polymerase amplification (RPA)-clustered regularly interspaced short palindromic repeats (CRISPR)/CRISPR-associated protein 12a (Cas12a) assay to detect T. gondii. The lowest limit of detection of the assay was 31 copies/μL for the T. gondii B1 gene. In addition, we established a visual RPA-CRISPR/Cas12a lateral flow band assay (RPA-CRISPR/Cas12a-LFA) combined with a digital visualization instrument, which minimized the problem of false-negative results for weakly positive samples and avoided misinterpretation of the results by the naked eye, making the LFA assay results more accurate. The assay established in this study could identify T. gondii within 55 min with high accuracy and sensitivity, without cross-reaction with other tested parasites. The developed assay was validated by establishing a mouse model of toxoplasmosis. Finally, the developed assay was used to investigate the prevalence of T. gondii in stray cats and dogs in Zhejiang province, Eastern China. The positive rates of T. gondii infection in stray cats and dogs were 8.0% and 4.0%, respectively. In conclusion, the RPA-CRISPR/Cas12a-LFA is rapid, sensitive, and accurate for the early diagnosis of T. gondii, showing promise for on-site surveillance. IMPORTANCE Toxoplasma gondii is a virulent pathogen that puts millions of infected people at risk of chronic disease reactivation. Hosts of T. gondii are distributed worldwide, and cats and dogs are common hosts of T. gondii. Therefore, rapid diagnosis of early T. gondii infection and investigation of its prevalence in stray dogs and cats are essential. Here, we established a visual recombinase polymerase amplification-clustered regularly interspaced short palindromic repeats (CRISPR)/CRISPR-associated protein 12a-assay combined with a lateral flow band assay and a digital visualization instrument. Detailed analyses found that the assay could be used for the early diagnosis of T. gondii without false-negative results. Moreover, we detected the prevalence of T. gondii in stray cats and dogs in Zhejiang province, China. Our developed assay provides technical support for the early diagnosis of T. gondii and could be applied in prevalence surveys of T. gondii in stray dogs and cats.
Collapse
Affiliation(s)
- Hao Sun
- Laboratory of Pathogen Biology, School of Basic Medicine and Forensics, Hangzhou Medical College, Hangzhou, China
| | - Jiyuan Fan
- Laboratory of Pathogen Biology, School of Basic Medicine and Forensics, Hangzhou Medical College, Hangzhou, China
| | - Hongkun Chu
- Laboratory of Pathogen Biology, School of Basic Medicine and Forensics, Hangzhou Medical College, Hangzhou, China
| | - Yafan Gao
- Laboratory of Pathogen Biology, School of Basic Medicine and Forensics, Hangzhou Medical College, Hangzhou, China
| | - Jiawen Fang
- Laboratory of Pathogen Biology, School of Basic Medicine and Forensics, Hangzhou Medical College, Hangzhou, China
| | - Qinli Wu
- Laboratory of Pathogen Biology, School of Basic Medicine and Forensics, Hangzhou Medical College, Hangzhou, China
| | - Haojie Ding
- Laboratory of Pathogen Biology, School of Basic Medicine and Forensics, Hangzhou Medical College, Hangzhou, China
- Research Center of Novel Vaccine of Zhejiang Province, School of Basic Medicine and Forensics, Hangzhou Medical College, Hangzhou, China
- Key Laboratory of Bio-tech Vaccine of Zhejiang Province, School of Basic Medicine and Forensics, Hangzhou Medical College, Hangzhou, China
| | - Xunhui Zhuo
- Laboratory of Pathogen Biology, School of Basic Medicine and Forensics, Hangzhou Medical College, Hangzhou, China
- Research Center of Novel Vaccine of Zhejiang Province, School of Basic Medicine and Forensics, Hangzhou Medical College, Hangzhou, China
- Key Laboratory of Bio-tech Vaccine of Zhejiang Province, School of Basic Medicine and Forensics, Hangzhou Medical College, Hangzhou, China
| | - QingMing Kong
- Laboratory of Pathogen Biology, School of Basic Medicine and Forensics, Hangzhou Medical College, Hangzhou, China
- Research Center of Novel Vaccine of Zhejiang Province, School of Basic Medicine and Forensics, Hangzhou Medical College, Hangzhou, China
- Key Laboratory of Bio-tech Vaccine of Zhejiang Province, School of Basic Medicine and Forensics, Hangzhou Medical College, Hangzhou, China
| | - HangJun Lv
- Laboratory of Pathogen Biology, School of Basic Medicine and Forensics, Hangzhou Medical College, Hangzhou, China
- Research Center of Novel Vaccine of Zhejiang Province, School of Basic Medicine and Forensics, Hangzhou Medical College, Hangzhou, China
- Key Laboratory of Bio-tech Vaccine of Zhejiang Province, School of Basic Medicine and Forensics, Hangzhou Medical College, Hangzhou, China
| | - Bin Zheng
- Laboratory of Pathogen Biology, School of Basic Medicine and Forensics, Hangzhou Medical College, Hangzhou, China
- Research Center of Novel Vaccine of Zhejiang Province, School of Basic Medicine and Forensics, Hangzhou Medical College, Hangzhou, China
- Key Laboratory of Bio-tech Vaccine of Zhejiang Province, School of Basic Medicine and Forensics, Hangzhou Medical College, Hangzhou, China
| | - Shaohong Lu
- Laboratory of Pathogen Biology, School of Basic Medicine and Forensics, Hangzhou Medical College, Hangzhou, China
- Research Center of Novel Vaccine of Zhejiang Province, School of Basic Medicine and Forensics, Hangzhou Medical College, Hangzhou, China
- Key Laboratory of Bio-tech Vaccine of Zhejiang Province, School of Basic Medicine and Forensics, Hangzhou Medical College, Hangzhou, China
| |
Collapse
|
2
|
Diniz DG, de Oliveira JHP, Guerreiro LCF, de Menezes GC, de Assis ACL, Duarte TQ, dos Santos IBD, Maciel FD, Soares GLDS, Araújo SC, Franco FTDC, do Carmo EL, Morais RDAB, de Lima CM, Brites D, Anthony DC, Diniz JAP, Diniz CWP. Contrasting Disease Progression, Microglia Reactivity, Tolerance, and Resistance to Toxoplasma gondii Infection in Two Mouse Strains. Biomedicines 2024; 12:1420. [PMID: 39061995 PMCID: PMC11274029 DOI: 10.3390/biomedicines12071420] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2024] [Revised: 06/02/2024] [Accepted: 06/08/2024] [Indexed: 07/28/2024] Open
Abstract
Our study investigated the innate immune response to Toxoplasma gondii infection by assessing microglial phenotypic changes and sickness behavior as inflammatory response markers post-ocular tachyzoite instillation. Disease progression in Swiss albino mice was compared with the previously documented outcomes in BALB/c mice using an identical ocular route and parasite burden (2 × 105 tachyzoites), with saline as the control. Contrary to expectations, the Swiss albino mice displayed rapid, lethal disease progression, marked by pronounced sickness behaviors and mortality within 11-12 days post-infection, while the survivors exhibited no apparent signs of infection. Comparative analysis revealed the T. gondii-infected BALB/c mice exhibited reduced avoidance of feline odors, while the infected Swiss albino mice showed enhanced avoidance responses. There was an important increase in microglial cells in the dentate gyrus molecular layer of the infected Swiss albino mice compared to the BALB/c mice and their respective controls. Hierarchical cluster and discriminant analyses identified three microglial morphological clusters, differentially affected by T. gondii infection across strains. The BALB/c mice exhibited increased microglial branching and complexity, while the Swiss albino mice showed reduced shrunken microglial arbors, diminishing their morphological complexity. These findings highlight strain-specific differences in disease progression and inflammatory regulation, indicating lineage-specific mechanisms in inflammatory responses, tolerance, and resistance. Understanding these elements is critical in devising control measures for toxoplasmosis.
Collapse
Affiliation(s)
- Daniel G. Diniz
- Laboratório de Investigações em Neurodegeneração e Infecção, Instituto de Ciências Biológicas, Hospital Universitário João de Barros Barreto, Universidade Federal do Pará, Belém 66073-005, Pará, Brazil; (D.G.D.); (J.H.P.d.O.); (L.C.F.G.); (G.C.d.M.); (A.C.L.d.A.); (T.Q.D.); (I.B.D.d.S.); (F.D.M.); (G.L.d.S.S.); (C.M.d.L.)
- Laboratório de Microscopia Eletrônica, Instituto Evandro Chagas, Belém 66077-830, Pará, Brazil; (S.C.A.); (F.T.d.C.F.); (J.A.P.D.)
- Núcleo de Pesquisas em Oncologia, Hospital Universitário João de Barros Barreto, Universidade Federal do Pará, Belém 66075-110, Pará, Brazil
| | - Jhonnathan H. P. de Oliveira
- Laboratório de Investigações em Neurodegeneração e Infecção, Instituto de Ciências Biológicas, Hospital Universitário João de Barros Barreto, Universidade Federal do Pará, Belém 66073-005, Pará, Brazil; (D.G.D.); (J.H.P.d.O.); (L.C.F.G.); (G.C.d.M.); (A.C.L.d.A.); (T.Q.D.); (I.B.D.d.S.); (F.D.M.); (G.L.d.S.S.); (C.M.d.L.)
| | - Luma C. F. Guerreiro
- Laboratório de Investigações em Neurodegeneração e Infecção, Instituto de Ciências Biológicas, Hospital Universitário João de Barros Barreto, Universidade Federal do Pará, Belém 66073-005, Pará, Brazil; (D.G.D.); (J.H.P.d.O.); (L.C.F.G.); (G.C.d.M.); (A.C.L.d.A.); (T.Q.D.); (I.B.D.d.S.); (F.D.M.); (G.L.d.S.S.); (C.M.d.L.)
- Laboratório de Biologia Molecular e Neuroecologia, Instituto Federal do Pará, Campus Bragança, Bragança 68600-000, Pará, Brazil
| | - Gabriel C. de Menezes
- Laboratório de Investigações em Neurodegeneração e Infecção, Instituto de Ciências Biológicas, Hospital Universitário João de Barros Barreto, Universidade Federal do Pará, Belém 66073-005, Pará, Brazil; (D.G.D.); (J.H.P.d.O.); (L.C.F.G.); (G.C.d.M.); (A.C.L.d.A.); (T.Q.D.); (I.B.D.d.S.); (F.D.M.); (G.L.d.S.S.); (C.M.d.L.)
| | - Alexa C. L. de Assis
- Laboratório de Investigações em Neurodegeneração e Infecção, Instituto de Ciências Biológicas, Hospital Universitário João de Barros Barreto, Universidade Federal do Pará, Belém 66073-005, Pará, Brazil; (D.G.D.); (J.H.P.d.O.); (L.C.F.G.); (G.C.d.M.); (A.C.L.d.A.); (T.Q.D.); (I.B.D.d.S.); (F.D.M.); (G.L.d.S.S.); (C.M.d.L.)
| | - Tainá Q. Duarte
- Laboratório de Investigações em Neurodegeneração e Infecção, Instituto de Ciências Biológicas, Hospital Universitário João de Barros Barreto, Universidade Federal do Pará, Belém 66073-005, Pará, Brazil; (D.G.D.); (J.H.P.d.O.); (L.C.F.G.); (G.C.d.M.); (A.C.L.d.A.); (T.Q.D.); (I.B.D.d.S.); (F.D.M.); (G.L.d.S.S.); (C.M.d.L.)
| | - Izabelly B. D. dos Santos
- Laboratório de Investigações em Neurodegeneração e Infecção, Instituto de Ciências Biológicas, Hospital Universitário João de Barros Barreto, Universidade Federal do Pará, Belém 66073-005, Pará, Brazil; (D.G.D.); (J.H.P.d.O.); (L.C.F.G.); (G.C.d.M.); (A.C.L.d.A.); (T.Q.D.); (I.B.D.d.S.); (F.D.M.); (G.L.d.S.S.); (C.M.d.L.)
| | - Flávia D. Maciel
- Laboratório de Investigações em Neurodegeneração e Infecção, Instituto de Ciências Biológicas, Hospital Universitário João de Barros Barreto, Universidade Federal do Pará, Belém 66073-005, Pará, Brazil; (D.G.D.); (J.H.P.d.O.); (L.C.F.G.); (G.C.d.M.); (A.C.L.d.A.); (T.Q.D.); (I.B.D.d.S.); (F.D.M.); (G.L.d.S.S.); (C.M.d.L.)
| | - Gabrielly L. da S. Soares
- Laboratório de Investigações em Neurodegeneração e Infecção, Instituto de Ciências Biológicas, Hospital Universitário João de Barros Barreto, Universidade Federal do Pará, Belém 66073-005, Pará, Brazil; (D.G.D.); (J.H.P.d.O.); (L.C.F.G.); (G.C.d.M.); (A.C.L.d.A.); (T.Q.D.); (I.B.D.d.S.); (F.D.M.); (G.L.d.S.S.); (C.M.d.L.)
| | - Sanderson C. Araújo
- Laboratório de Microscopia Eletrônica, Instituto Evandro Chagas, Belém 66077-830, Pará, Brazil; (S.C.A.); (F.T.d.C.F.); (J.A.P.D.)
| | - Felipe T. de C. Franco
- Laboratório de Microscopia Eletrônica, Instituto Evandro Chagas, Belém 66077-830, Pará, Brazil; (S.C.A.); (F.T.d.C.F.); (J.A.P.D.)
| | - Ediclei L. do Carmo
- Seção de Parasitologia, Instituto Evandro Chagas, Belém 67030-000, Pará, Brazil; (E.L.d.C.); (R.d.A.B.M.)
| | - Rafaela dos A. B. Morais
- Seção de Parasitologia, Instituto Evandro Chagas, Belém 67030-000, Pará, Brazil; (E.L.d.C.); (R.d.A.B.M.)
| | - Camila M. de Lima
- Laboratório de Investigações em Neurodegeneração e Infecção, Instituto de Ciências Biológicas, Hospital Universitário João de Barros Barreto, Universidade Federal do Pará, Belém 66073-005, Pará, Brazil; (D.G.D.); (J.H.P.d.O.); (L.C.F.G.); (G.C.d.M.); (A.C.L.d.A.); (T.Q.D.); (I.B.D.d.S.); (F.D.M.); (G.L.d.S.S.); (C.M.d.L.)
- Laboratório de Microscopia Eletrônica, Instituto Evandro Chagas, Belém 66077-830, Pará, Brazil; (S.C.A.); (F.T.d.C.F.); (J.A.P.D.)
| | - Dora Brites
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, 1649-003 Lisbon, Portugal;
- Department of Pharmaceutical Sciences and Medicines, Faculty of Pharmacy, Universidade de Lisboa, 1649-003 Lisbon, Portugal
| | - Daniel C. Anthony
- Laboratory of Experimental Neuropathology, Department of Pharmacology, University of Oxford, Oxford OX1 2JD, UK;
| | - José A. P. Diniz
- Laboratório de Microscopia Eletrônica, Instituto Evandro Chagas, Belém 66077-830, Pará, Brazil; (S.C.A.); (F.T.d.C.F.); (J.A.P.D.)
| | - Cristovam W. P. Diniz
- Laboratório de Investigações em Neurodegeneração e Infecção, Instituto de Ciências Biológicas, Hospital Universitário João de Barros Barreto, Universidade Federal do Pará, Belém 66073-005, Pará, Brazil; (D.G.D.); (J.H.P.d.O.); (L.C.F.G.); (G.C.d.M.); (A.C.L.d.A.); (T.Q.D.); (I.B.D.d.S.); (F.D.M.); (G.L.d.S.S.); (C.M.d.L.)
| |
Collapse
|
3
|
Foroutan M, Majidiani H, Hassanipour S, Badri M. Toxoplasma gondii seroprevalence in the Iranian blood donors: A systematic review and meta-analysis. Heliyon 2024; 10:e28013. [PMID: 38509978 PMCID: PMC10951657 DOI: 10.1016/j.heliyon.2024.e28013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2023] [Revised: 03/09/2024] [Accepted: 03/11/2024] [Indexed: 03/22/2024] Open
Abstract
Background The present systematic review and meta-analysis was done to assess the rate of Toxoplasma gondii (T. gondii) exposure among Iranian healthy blood donors. Methods We searched four English (PubMed, Scopus, Web of Science, and Science Direct) and two Persian databases (Magiran and SID) as well as Google Scholar as a specialized article search engine using specific keywords for relevant papers from the inception up to November 30, 2023. Results In total, 19 studies enrolling 8226 apparently healthy blood donors were examined regarding T. gondii-specific IgG and/or IgM antibodies, among which 2666 [32.9% (95% CI: 25.3%-41.6%)], 168 [1.4% (95% CI: 0.9%-2.1%)], and 83 [1.7% (95% CI: 1.3%-2.1%)] subjects were seropositive regarding IgG, IgM, and both IgG/IgM antibodies, respectively. Five risk factors were significantly associated with T. gondii seroprevalence, including gender (OR = 1.98; 95% CI: 1.52-2.58; P < 0.001), contact with cat (OR = 2.41; 95% CI: 1.70-3.41; P < 0.001), contact with soil (OR = 2.83; 95% CI: 1.07-7.45; P = 0.035), consuming raw/undercooked meat (OR = 1.95; 95% CI: 1.03-3.70; P = 0.039), and raw/unwashed vegetables (OR = 1.70; 95% CI: 1.25-2.31; P = 0.001). Conclusion A moderate rate of T. gondii exposure was found in the Iranian blood donors, with the association of several risk factors, including gender, contact with cat, contact with soil, consumption of unwashed vegetables and/or undercooked meat. Still, more studies are recommended regarding T. gondii exposure among blood donors in Iran.
Collapse
Affiliation(s)
- Masoud Foroutan
- Department of Basic Medical Sciences, Faculty of Medicine, Abadan University of Medical Sciences, Abadan, Iran
| | - Hamidreza Majidiani
- Healthy Aging Research Centre, Neyshabur University of Medical Sciences, Neyshabur, Iran
- Department of Basic Medical Sciences, Neyshabur University of Medical Sciences, Neyshabur, Iran
| | - Soheil Hassanipour
- Gastrointestinal and Liver Diseases Research Center, Guilan University of Medical Sciences, Rasht, Iran
| | - Milad Badri
- Medical Microbiology Research Center, Qazvin University of Medical Sciences, Qazvin, Iran
| |
Collapse
|
4
|
Wesołowski R, Pawłowska M, Mila-Kierzenkowska C. The Medical Relevance of Toxoplasma Infections in Terms of the Safety of Blood Recipients under Immunosuppression-A Meta-Analysis. Microorganisms 2023; 11:1980. [PMID: 37630541 PMCID: PMC10458665 DOI: 10.3390/microorganisms11081980] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Revised: 07/25/2023] [Accepted: 07/31/2023] [Indexed: 08/27/2023] Open
Abstract
Laboratory diagnosis of Toxoplasma gondii infection plays a crucial role in ensuring the safety of blood recipients, especially in the case of immunosuppressed people, such as organ transplant patients. Toxoplasmosis, caused by the parasite Toxoplasma gondii, is a potential threat to people with weakened immune systems, and blood transfusions from infected donors can lead to severe complications. In this publication, we analyze the medical relevance of Toxoplasma infection in the context of the safety of blood recipients, focusing on the immunosuppressed patient population. We present various diagnostic methods, such as serological, molecular, and microscopic tests, which can detect the presence of Toxoplasma gondii in donors' blood. We also discuss the importance of adequately interpreting diagnostic results, considering risk factors, and detectability of the infection. We pay special attention to high-sensitivity and -specificity diagnostic techniques, which allow us to minimize the risk of Toxoplasma gondii transmission to blood recipients. Our findings have important implications for clinical practice and organ transplantation guidelines, emphasizing the need to diagnose and monitor Toxoplasma infections in blood donors and recipients.
Collapse
Affiliation(s)
| | | | - Celestyna Mila-Kierzenkowska
- Department of Medical Biology and Biochemistry, Faculty of Medicine, Ludwik Rydygier Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Toruń, 87-100 Toruń, Poland; (R.W.); (M.P.)
| |
Collapse
|
5
|
Meng JX, Wei XY, Guo H, Chen Y, Wang W, Geng HL, Yang X, Jiang J, Zhang XX. Metagenomic insights into the composition and function of the gut microbiota of mice infected with Toxoplasma gondii. Front Immunol 2023; 14:1156397. [PMID: 37090719 PMCID: PMC10118048 DOI: 10.3389/fimmu.2023.1156397] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Accepted: 03/16/2023] [Indexed: 04/25/2023] Open
Abstract
Introduction Despite Toxoplasma gondii infection leading to dysbiosis and enteritis, the function of gut microbiota in toxoplasmosis has not been explored. Methods Here, shotgun metagenomics was employed to characterize the composition and function of mouse microbial community during acute and chronic T. gondii infection, respectively. Results The results revealed that the diversity of gut bacteria was decreased immediately after T. gondii infection, and was increased with the duration of infection. In addition, T. gondii infection led to gut microbiota dysbiosis both in acute and chronic infection periods. Therein, several signatures, including depression of Firmicutes to Bacteroidetes ratio and infection-enriched Proteobacteria, were observed in the chronic period, which may contribute to aggravated gut inflammation and disease severity. Functional analysis showed that a large amount of Kyoto Encyclopedia of Genes and Genomes (KEGG) pathways and carbohydrate-active enzymes (CAZy) family displayed distinct variation in abundance between infected and healthy mice. The lipopolysaccharide biosynthesis related pathways were activated in the chronic infection period, which might lead to immune system imbalance and involve in intestinal inflammation. Moreover, microbial and functional spectrums were more disordered in chronic than acute infection periods, thus implying gut microbiota was more likely to participate in disease process in the chronically infected mice, even exacerbated immunologic derangement and disease progression. Discussion Our data indicate that the gut microbiota plays a potentially important role in protecting mice from T. gondii infection, and contributes to better understand the association between gut microbiota and toxoplasmosis.
Collapse
Affiliation(s)
- Jin-Xin Meng
- College of Veterinary Medicine, Qingdao Agricultural University, Qingdao, Shandong, China
| | - Xin-Yu Wei
- College of Life Science, Changchun Sci-Tech University, Changchun, China
- College of Animal Science and Veterinary Medicine, Heilongjiang Bayi Agricultural University, Daqing, Heilongjiang, China
| | - Huanping Guo
- State Key Laboratory for Animal Disease Control and Prevention, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, Heilongjiang, China
| | - Yu Chen
- College of Animal Science and Veterinary Medicine, Heilongjiang Bayi Agricultural University, Daqing, Heilongjiang, China
| | - Wei Wang
- College of Animal Science and Veterinary Medicine, Heilongjiang Bayi Agricultural University, Daqing, Heilongjiang, China
| | - Hong-Li Geng
- College of Veterinary Medicine, Qingdao Agricultural University, Qingdao, Shandong, China
| | - Xing Yang
- Department of Medical Microbiology and Immunology, School of Basic Medicine, Dali University, Dali, Yunnan, China
| | - Jiang Jiang
- College of Life Science, Changchun Sci-Tech University, Changchun, China
| | - Xiao-Xuan Zhang
- College of Veterinary Medicine, Qingdao Agricultural University, Qingdao, Shandong, China
- *Correspondence: Xiao-Xuan Zhang,
| |
Collapse
|
6
|
Lupu MA, Lighezan R, Paduraru AA, Dragomir A, Pavel R, Grada S, Mihu AG, Ursoniu S, Olariu TR. Seroepidemiology of Toxoplasma gondii Infection in Blood Donors from Western Romania. Microorganisms 2022; 10:973. [PMID: 35630416 PMCID: PMC9143041 DOI: 10.3390/microorganisms10050973] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2022] [Revised: 05/02/2022] [Accepted: 05/02/2022] [Indexed: 02/01/2023] Open
Abstract
Background: Toxoplasma gondii is estimated to infect 33% of blood donors worldwide, and seroprevalence varies widely between countries. We aimed to evaluate, for the first time, the seroprevalence and risk factors associated with T. gondii in blood donors from Western Romania. Methods: Serologic testing to demonstrate the presence of T. gondii antibodies was conducted in 1347 healthy blood donors. Risk factors for T. gondii infection were assessed through an epidemiological questionnaire. Results: The overall prevalence of T. gondii antibodies was 45.9%, with a significant age-associated increase (p < 0.001) from 32.6% in age group 18−25 years to 67.6% in age group 56−63 years. T. gondii seroprevalence decreased with increasing level of education, from 64.3% in individuals who graduated from elementary/middle school to 40.4% in those who graduated from University (p < 0.001). The multiple logistic regression analysis revealed that age, level of education and having pets (cats and/or dogs) were significantly associated with T. gondii infection. Conclusions: This study brings new and valuable data regarding the seroepidemiology of T. gondii infection in Romania. Our findings indicate a high prevalence of T. gondii antibodies in blood donors and may serve as a starting point for further epidemiological studies that should lead to implementation of prevention programs for toxoplasmosis.
Collapse
Affiliation(s)
- Maria Alina Lupu
- Discipline of Parasitology, Department of Infectious Disease, Victor Babes University of Medicine and Pharmacy, 300041 Timisoara, Romania; (R.L.); (A.A.P.); (A.D.); (R.P.); (S.G.); (A.G.M.)
- Center for Diagnosis and Study of Parasitic Diseases, Department of Infectious Disease, Victor Babes University of Medicine and Pharmacy, 300041 Timisoara, Romania
- Clinical Laboratory, Institute of Cardiovascular Diseases, 300310 Timisoara, Romania
| | - Rodica Lighezan
- Discipline of Parasitology, Department of Infectious Disease, Victor Babes University of Medicine and Pharmacy, 300041 Timisoara, Romania; (R.L.); (A.A.P.); (A.D.); (R.P.); (S.G.); (A.G.M.)
- Center for Diagnosis and Study of Parasitic Diseases, Department of Infectious Disease, Victor Babes University of Medicine and Pharmacy, 300041 Timisoara, Romania
- Regional Blood Transfusion Center, 300737 Timisoara, Romania
| | - Ana Alexandra Paduraru
- Discipline of Parasitology, Department of Infectious Disease, Victor Babes University of Medicine and Pharmacy, 300041 Timisoara, Romania; (R.L.); (A.A.P.); (A.D.); (R.P.); (S.G.); (A.G.M.)
- Center for Diagnosis and Study of Parasitic Diseases, Department of Infectious Disease, Victor Babes University of Medicine and Pharmacy, 300041 Timisoara, Romania
| | - Angela Dragomir
- Discipline of Parasitology, Department of Infectious Disease, Victor Babes University of Medicine and Pharmacy, 300041 Timisoara, Romania; (R.L.); (A.A.P.); (A.D.); (R.P.); (S.G.); (A.G.M.)
- Center for Diagnosis and Study of Parasitic Diseases, Department of Infectious Disease, Victor Babes University of Medicine and Pharmacy, 300041 Timisoara, Romania
- Clinical Laboratory, Institute of Cardiovascular Diseases, 300310 Timisoara, Romania
| | - Radu Pavel
- Discipline of Parasitology, Department of Infectious Disease, Victor Babes University of Medicine and Pharmacy, 300041 Timisoara, Romania; (R.L.); (A.A.P.); (A.D.); (R.P.); (S.G.); (A.G.M.)
- Center for Diagnosis and Study of Parasitic Diseases, Department of Infectious Disease, Victor Babes University of Medicine and Pharmacy, 300041 Timisoara, Romania
- Discipline of Epidemiology, Department of Infectious Disease, Victor Babes University of Medicine and Pharmacy, 300041 Timisoara, Romania
| | - Sebastian Grada
- Discipline of Parasitology, Department of Infectious Disease, Victor Babes University of Medicine and Pharmacy, 300041 Timisoara, Romania; (R.L.); (A.A.P.); (A.D.); (R.P.); (S.G.); (A.G.M.)
- Center for Diagnosis and Study of Parasitic Diseases, Department of Infectious Disease, Victor Babes University of Medicine and Pharmacy, 300041 Timisoara, Romania
| | - Alin Gabriel Mihu
- Discipline of Parasitology, Department of Infectious Disease, Victor Babes University of Medicine and Pharmacy, 300041 Timisoara, Romania; (R.L.); (A.A.P.); (A.D.); (R.P.); (S.G.); (A.G.M.)
- Center for Diagnosis and Study of Parasitic Diseases, Department of Infectious Disease, Victor Babes University of Medicine and Pharmacy, 300041 Timisoara, Romania
| | - Sorin Ursoniu
- Department of Functional Sciences, Center for Translational Research and Systems Medicine, Victor Babes University of Medicine and Pharmacy, 300041 Timisoara, Romania;
| | - Tudor Rares Olariu
- Discipline of Parasitology, Department of Infectious Disease, Victor Babes University of Medicine and Pharmacy, 300041 Timisoara, Romania; (R.L.); (A.A.P.); (A.D.); (R.P.); (S.G.); (A.G.M.)
- Center for Diagnosis and Study of Parasitic Diseases, Department of Infectious Disease, Victor Babes University of Medicine and Pharmacy, 300041 Timisoara, Romania
- Clinical Laboratory, Municipal Clinical Emergency Teaching Hospital, 300254 Timisoara, Romania
| |
Collapse
|
7
|
Zhu K, Liu K, Huang J, Weng X, Chen Q, Gao T, Chen K, Jing C, Wang J, Yang G. Toxoplasma gondii infection as a risk factor for osteoporosis: a case-control study. Parasit Vectors 2022; 15:151. [PMID: 35477558 PMCID: PMC9044867 DOI: 10.1186/s13071-022-05257-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2022] [Accepted: 03/29/2022] [Indexed: 11/21/2022] Open
Abstract
Background More than one-third of the total world population is infected by Toxoplasma gondii (T. gondii). T. gondii has been linked to various diseases, such as cancer, mental disorders, type 2 diabetes mellitus (T2DM), etc. However, the effects of T. gondii infection on the risk of osteoporosis are unclear. Our study aimed to uncover evidence to determine whether patients exposed to T. gondii have an increased or decreased risk of osteoporosis in people with abnormal bone mineral density (BMD) by using case–control study. Methods A total of 729 patients, including 316 osteopenia and 413 osteoporosis patients of Han Chinese ancestry were selected in the study. Their blood samples were collected and the levels of specific IgG antibodies against T. gondii were measured using ELISA assay. We obtained some information about the patients from the medical record that included demographic indexes and clinical data. A logistic regression analysis was used to evaluate the effects of T. gondii infection on femur osteoporosis, lumbar osteoporosis and compound osteoporosis. Potential interaction was analyzed using multifactor dimensionality reduction software 1.0.0 (MDR 1.0.0). Results 113 positive patients with T. gondii infections have been detected, including 80 cases of osteoporosis and 33 cases of osteopenia, the infection rates of T. gondii were 19.37% (80/413) and 10.44% (33/316), respectively. The patients with T.gondii infections were at a 2.60 times higher risk of suffering from compound osteoporosis than those without T. gondii infections (OR = 2.60, 95% CI 1.54–4.39, P < 0.001), but not associated with femur osteoporosis (OR = 1.01, 95% CI 0.43–2.34, P = 0.989) and lumbar osteoporosis (OR = 0.84, 95% CI 0.34–2.07, P = 0.705) after adjusting for the covariates. Moreover, a significantly higher risk of compound osteoporosis in the individuals with all two factors (T. gondii infection, Female) was observed compared with reference group (without T. gondii infection, male) under the interaction model (OR = 11.44, 95%CI = 5.44–24.05, P < 0.001). And the individuals with all two factors (T. gondii infection, over 70 years) exhibited a 8.14-fold higher possibility of developing compound osteoporosis compared with reference group (without T. gondii infection, under 70 years) (OR = 8.14, 95% CI 3.91–16.93, P < 0.001). We further stratified by age and sex, and found that women with T. gondii infection was more likely to develop compound osteoporosis than those without infection(OR = 3.12, 95% CI 1.67–5.81, P < 0.001), but we not found the association between T. gondii infection and compound osteoporosis in males (OR = 1.36, 95% CI 0.37–4.94, P = 0.645). Conclusions T. gondii infection is a risk factor for osteoporosis, especially compound osteoporosis. Meanwhile, it is very necessary for patients with osteoporosis to further diagnose and treat T. gondii infection, especially women. Graphical Abstract ![]()
Supplementary Information The online version contains supplementary material available at 10.1186/s13071-022-05257-z.
Collapse
Affiliation(s)
- Kehui Zhu
- Department of Pathogen Biology, School of Medicine, Jinan University, Guangzhou, 510632, Guangdong, China.,Institute of Blood Transfusion, Chinese Academy of Medical Sciences and Peking Union Medical College, Chengdu, 610000, Sichuan, China
| | - Kun Liu
- Department of Pathogen Biology, School of Medicine, Jinan University, Guangzhou, 510632, Guangdong, China.,Department of Epidemiology, School of Medicine, Jinan University, No.601 Huangpu Road West, Guangzhou, 510632, Guangdong, China
| | - Junsi Huang
- Department of Pathogen Biology, School of Medicine, Jinan University, Guangzhou, 510632, Guangdong, China.,Department of Epidemiology, School of Medicine, Jinan University, No.601 Huangpu Road West, Guangzhou, 510632, Guangdong, China
| | - Xueqiong Weng
- Department of Epidemiology, School of Medicine, Jinan University, No.601 Huangpu Road West, Guangzhou, 510632, Guangdong, China
| | - Qiaoyun Chen
- Department of Pathogen Biology, School of Medicine, Jinan University, Guangzhou, 510632, Guangdong, China.,Department of Epidemiology, School of Medicine, Jinan University, No.601 Huangpu Road West, Guangzhou, 510632, Guangdong, China
| | - Tianyu Gao
- Department of Pathogen Biology, School of Medicine, Jinan University, Guangzhou, 510632, Guangdong, China.,Department of Epidemiology, School of Medicine, Jinan University, No.601 Huangpu Road West, Guangzhou, 510632, Guangdong, China
| | - Kebing Chen
- Department of Spine Surgery, Center for Orthopaedic Surgery, The Sixth Affiliated Hospital of Sun Yat-Sen University, Guangzhou, 510655, China
| | - Chunxia Jing
- Department of Epidemiology, School of Medicine, Jinan University, No.601 Huangpu Road West, Guangzhou, 510632, Guangdong, China
| | - Jing Wang
- Department of Orthopedics, The First Affiliated Hospital of Jinan University, Guangzhou, 510630, China.
| | - Guang Yang
- Department of Pathogen Biology, School of Medicine, Jinan University, Guangzhou, 510632, Guangdong, China.
| |
Collapse
|
8
|
Wu Y, Wang F, Wang C, Tang X, Liu X, Li S, Waterfield NR, Wang W, Suo X, Yang G. Detection of Pneumocystis jirovecii and Toxoplasma gondii in patients with lung infections by a duplex qPCR assay. PLoS Negl Trop Dis 2021; 15:e0010025. [PMID: 34919557 PMCID: PMC8682901 DOI: 10.1371/journal.pntd.0010025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2021] [Accepted: 11/25/2021] [Indexed: 12/02/2022] Open
Abstract
Pneumocystis pneumonia (PCP) and pulmonary toxoplasmosis (PT) are caused by Pneumocystis jirovecii and Toxoplasma gondii. The clinical symptoms and imaging of PCP and PT are indistinguishable. A duplex qPCR was developed to differentiate between these two pathogens. In testing 92 clinical samples to validate the performance of this method for P. jirovecii detection, it identified 31 positive samples for P. jirovecii infection, consistent with clinical diagnosis. Among the remainder of the 61 clinical samples with suspected PCP, yet showing as negative by the conventional PCR diagnosis approach, 6 of them proved positive using our new assay. Our new approach also produced similar results in identification of T. gondii infections, giving a result of 2 positive and 20 negative in clinical samples. An investigation was undertaken on the prevalence of P. jirovecii and T. gondii infections using 113 samples from lung infection patients. 9% (10/113) were shown to be positive with infections of P. jirovecii, 2% with T. gondii (2/113) and 5% (6/113) were co-infected with both pathogens. Although this duplex qPCR can detect individual P. jirovecii and T. gondii infection, and co-infection of both pathogens, further large-scale investigations are needed to validate its performance, especially in T. gondii detection. Our assay provides a rapid and accurate tool for PCP and PT diagnosis in immunocompromised population and clinical surveillance of these infections in patients with no immune defects. Pneumocystis jirovecii and Toxoplasma gondii are opportunistic pathogens that can cause pneumocystis pneumonia (PCP) and pulmonary toxoplasmosis (PT) in immunocompromised patients. Due to the non-specific clinical symptoms and similar imaging of lung pathology, these two deadly diseases are difficult to be clinically differential diagnosed. Early diagnosis of these infections would reduce medical costs, morbidity and mortality. A duplex qPCR method was developed for the detection of both P. jirovecii and T. gondii infection simultaneously. This new assay provides a potential application for diagnosis and surveillance of both PCP and PT. Further investigation for the prevalence of P. jirovecii and T. gondii infections indicated that P. jirovecii and T. gondii involvement in lung infection has been seriously underestimated.
Collapse
Affiliation(s)
- Yun Wu
- Beijing Institute of Tropical Medicine, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Fei Wang
- Beijing Institute of Tropical Medicine, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Chaoyue Wang
- Key Laboratory of Animal Epidemiology of Ministry of Agriculture, National Animal Protozoa Laboratory, College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Xinming Tang
- Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Xianyong Liu
- Key Laboratory of Animal Epidemiology of Ministry of Agriculture, National Animal Protozoa Laboratory, College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Shaogang Li
- Beijing Institute of Tropical Medicine, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | | | - Wei Wang
- Department of Respiratory Medicine, Beijing Friendship Hospital, Capital Medical University, Beijing, China
- * E-mail: (WW); (XS); (GY)
| | - Xun Suo
- Key Laboratory of Animal Epidemiology of Ministry of Agriculture, National Animal Protozoa Laboratory, College of Veterinary Medicine, China Agricultural University, Beijing, China
- * E-mail: (WW); (XS); (GY)
| | - Guowei Yang
- Beijing Institute of Tropical Medicine, Beijing Friendship Hospital, Capital Medical University, Beijing, China
- * E-mail: (WW); (XS); (GY)
| |
Collapse
|
9
|
Brewer D, MacMillan ML, Schleiss MR, Ayuthaya SIN, Young JA, Ebens CL. Detection and treatment of cerebral toxoplasmosis in an aplastic pediatric post-allogeneic hematopoietic cell transplant patient: a case report. BMC Infect Dis 2021; 21:941. [PMID: 34507535 PMCID: PMC8434744 DOI: 10.1186/s12879-021-06650-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2021] [Accepted: 09/01/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Cerebral toxoplasmosis infection presents with non-specific neurologic symptoms in immunocompromised patients. With lack of measurable adaptive immune responses and reluctance to sample affected brain tissue, expedient diagnosis to guide directed treatment is often delayed. CASE PRESENTATION We describe the use of cerebrospinal fluid polymerase chain reaction and plasma cell-free DNA technologies to supplement neuroimaging in the diagnosis of cerebral toxoplasmosis in an immunocompromised pediatric patient following allogeneic hematopoietic cell transplantation for idiopathic severe aplastic anemia. Successful cerebral toxoplasmosis treatment included antibiotic therapy for 1 year following restoration of cellular immunity with an allogeneic stem cell boost. CONCLUSIONS Plasma cell-free DNA technology provides a non-invasive method of rapid diagnosis, improving the likelihood of survival from often lethal opportunistic infection in a high risk, immunocompromised patient population.
Collapse
Affiliation(s)
- Danielle Brewer
- Medical School, University of Minnesota, Minneapolis, MN, USA
| | - Margaret L MacMillan
- Department of Pediatrics, Division of Blood and Marrow Transplantation and Cellular Therapy, University of Minnesota, Minneapolis, MN, USA
| | - Mark R Schleiss
- Department of Pediatrics, Division of Infectious Diseases, University of Minnesota, Minneapolis, MN, USA
| | | | - Jo-Anne Young
- Department of Medicine, Division of Infectious Diseases and International Medicine, University of Minnesota, Minneapolis, MN, USA
| | - Christen L Ebens
- Department of Pediatrics, Division of Blood and Marrow Transplantation and Cellular Therapy, University of Minnesota, Minneapolis, MN, USA.
| |
Collapse
|
10
|
Toxoplasma gondii could have a possible role in the cancer mechanism by modulating the host's cell response. Acta Trop 2021; 220:105966. [PMID: 34023305 DOI: 10.1016/j.actatropica.2021.105966] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Revised: 05/11/2021] [Accepted: 05/14/2021] [Indexed: 12/15/2022]
Abstract
Toxoplasma gondii, which manipulates many signaling pathways to achieve persistence in host cells, is intimately linked to immune and inflammation responses. However, there is still lack of information about the impact of T. gondii on cellular and immune responses. This study was designed to seek the impact of T. gondii infection causing life-long inflammation in brain, on cancer mechanism. To identify molecular effects of the T. gondii and understand the association between the functional perturbations occurring during infection and cancer development, the transcriptomic datasets obtained mice infected with T. gondii were downloaded from GEO. The differentially expressed genes (DEGs) were identified and functional enrichment analysis was performed using IPA platform, then all results were evaluated with comparison analyses. Subsequently, a T. gondii infection model with human neuroepithelioma cell culture was performed in order to validate top DEGs participated in common networks/pathways in cancer mechanism. Transcriptomic analyses of infected mice and in vitro cell culture model revealed a strong immune response and inflammation occurred by parasite-induced damage and parasite-associated immunopathology in host cell and tissue. T. gondii infection could modulate certain signaling pathways of host, which were also common to those perturbed in carcinogenesis. Interestingly, the network analysis of the data sets predicted an activation in development of solid cancer vice versa inhibition in hematological cancer during T. gondii infection. Parasite might also control the tumor growth due to its potent immune-stimulant effects. As result, T. gondii infection generating a continual inflammation in tissues might potentially contribute to cancer development by regulating critical host signaling pathways or reveal an anti-tumoral activity.
Collapse
|
11
|
Toxoplasma gondii and multiple sclerosis: a population-based case-control study. Sci Rep 2020; 10:18855. [PMID: 33139781 PMCID: PMC7606604 DOI: 10.1038/s41598-020-75830-y] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2020] [Accepted: 10/09/2020] [Indexed: 01/02/2023] Open
Abstract
According to the hygiene hypothesis, parasites could have a protective role in the development of Multiple Sclerosis (MS). Our aim was to assess the association between presence of anti-Toxoplasma gondii antibodies and MS. MS patients were randomly selected from a population-based incident cohort of MS patients in the city of Catania. Age and sex-matched controls were randomly selected from the general population. Clinical and sociodemographic variables were recorded with a structured questionnaire and a blood sample was taken for serological analysis. Specific T. gondii IgG have been detected with a commercial kit. Adjusted Odds Ratios (ORs) were estimated using unconditional logistic regression. 129 MS subjects (66.7% women with a mean age 44.7 ± 11.0 years) and 287 controls (67.3% women with a mean age 48.1 ± 15.6 years) have been enrolled in the study. Anti-T. gondii antibodies were found in 38 cases (29.5%) and 130 controls (45.4%) giving an adjusted OR of 0.56 (95%CI 0.34–0.93). History of mononucleosis and high educational level were significantly associated with MS (adjOR 2.22 and 1.70 respectively) while an inverse association was found between high educational level and T. gondii seropositivity (adjOR 0.42). Our results further support the protective role of parasitic infections in MS.
Collapse
|
12
|
Metagenomic analysis and identification of emerging pathogens in blood from healthy donors. Sci Rep 2020; 10:15809. [PMID: 32978450 PMCID: PMC7519034 DOI: 10.1038/s41598-020-72808-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2019] [Accepted: 09/07/2020] [Indexed: 11/23/2022] Open
Abstract
Emerging infectious pathogens that threaten blood transfusions are known to be present in blood samples from healthy/qualified donors. The objective of this study was to investigate the microbiome of blood from healthy donors from the Luzhou area in southwestern China. Potential pathogens and cytomegalovirus (CMV) infection in the donor blood were identified. Total plasma nucleic acids were extracted from one pool of 5734 samples and were constructed for metagenomics analysis using Illumina sequencing. The microbiome and potential emerging/re-emerging pathogens were identified using bioinformatics analysis. Moreover, CMV antigen was measured via an enzyme-linked immunosorbent assay, and the CMV DNA level was assessed by quantitative RT-PCR. A total of 132 bacterial reads, 65 viral reads and 165 parasitic reads were obtained. The most frequent bacterium was Escherichia coli (95/132, 72%) with 95 reads in 132 bacterial reads, and the most prevalent parasite was Toxoplasma gondii (131/165, 79%). Among the viruses, cytomegalovirus (44/65, 68%) accounted for the highest frequency, followed by Hepatitis E Virus (10/65, 15%). Moreover, the positive rate of CMV-IgG was 46.25% (2652/5734), and the positive rate of CMV-IgM was 5.82% (334/5734). The positive rate of dual positive (IgG+ and IgM+) CMV was 0.07% (4/5734). Twenty-one (0.37%) specimens from 5734 donated blood samples were positive for CMV DNA. The CMV DNA levels ranged from 7.56 × 102 to 3.58 × 103 copies/mL. The current study elucidated the microbiome structure in blood from healthy/qualified donors in the Luzhou area and identified emerging/re-emerging pathogens. This preliminary study contributes to information regarding blood transfusion safety in China.
Collapse
|
13
|
Rahmanian V, Rahmanian K, Jahromi AS, Bokaie S. Seroprevalence of toxoplasma gondii infection: An umbrella review of updated systematic reviews and meta-analyses. J Family Med Prim Care 2020; 9:3848-3855. [PMID: 33110778 PMCID: PMC7586519 DOI: 10.4103/jfmpc.jfmpc_753_20] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2020] [Revised: 06/11/2020] [Accepted: 07/03/2020] [Indexed: 12/21/2022] Open
Abstract
Objectives: Toxoplasmosis is one of the neglected parasitic disease in humans and animals that produced via toxoplasma gondii. This study we implemented an umbrella review of all existing systematic reviews, meta-analyzing studies to apprise, and summarize seroprevalence of human toxoplasmosis in worldwide. Methods: The search was carried out in databases including: Pub Med, Google Scholar, Science Direct, Scopus, Web of Science, Cochrane, and global health from their start dates until December 2018 in Persian and English language. A total of 21 systematics review and meta-analysis met the inclusion criteria of umbrella review. The Q test and the I2 statistic were used to evaluate heterogeneities. Quality assessment were performed and made use of the AMSTAR tool. Results: The estimated pooled seroprevalence of T. gondii infection in blood donors, Immunocompromised patients, childbearing age women, general population, newborns and children, pregnant women and overall was 33% (95% CI, 29.0–38.0%), 42.0% (95 CI, 34.0–49.0%), 32.0% (CI, 26.0–38.0%), 42.0% (CI, 38.0–45.0%), 4.0% (CI, 2.0–5.0%), 40.0% (CI,37.0–44.0%), and 36% (CI, 24.0–48.0%), respectively. Conclusion: The results of our umbrella review show a higher seroprevalence of T. gondii infection in immunocompromised patients, general population, pregnant women, blood donors, childbearing age women, and newborn groups, respectively. Routine serologic screening test and health education by primary care physicians for Toxoplasmosis is recommended to be conducted in high-risk groups in the endemic region.
Collapse
Affiliation(s)
- Vahid Rahmanian
- Zoonoses Research Center, Jahrom University of Medical Sciences, Jahrom, Iran
| | | | | | - Saied Bokaie
- Epidemiology and Zoonosis Division, Department of Food Hygiene, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran
| |
Collapse
|
14
|
Méndez-Hernández EM, Hernández-Tinoco J, Salas-Pacheco JM, Sánchez-Anguiano LF, Arias-Carrión O, Sandoval-Carrillo AA, Castellanos-Juárez FX, Ruano-Calderón LÁ, Alvarado-Esquivel C. Toxoplasma gondii infection and multiple sclerosis: An age- and a gender-matched case-control seroprevalence study. Eur J Microbiol Immunol (Bp) 2020; 10:76-79. [PMID: 32628617 PMCID: PMC7391378 DOI: 10.1556/1886.2019.00020] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2019] [Accepted: 05/05/2020] [Indexed: 11/29/2022] Open
Abstract
The link between Toxoplasma gondii infection and multiple sclerosis remains controversial. In the present study, we aimed to determine the association between T.gondii seropositivity and multiple sclerosis. Using an age- and gender-matched case-control study, we studied 45 patients who had multiple sclerosis attended in two public hospitals and 225 control subjects without this disease and other neurological disorders in Durango City, Mexico. Serum samples of cases and controls were analyzed for detection of anti-Toxoplasma IgG using a commercially available enzyme-linked immunoassay. One (2.22%) of the 45 patients with multiple sclerosis, and 15 (6.67%) of the 225 control subjects without this disease were seropositive for anti-T. gondii IgG antibodies. No statistically significant difference (OR = 0.31; 95% CI: 0.04–2.47; P = 0.48) in seroprevalence of anti-T. gondii IgG antibodies between cases and controls was found. The frequency of T. gondii seropositivity did not vary among cases and controls about sex or age groups. Results of this study do not support an association between seropositivity to T. gondii and multiple sclerosis. However, additional research with larger sample sizes to confirm this lack of association should be conducted.
Collapse
Affiliation(s)
- Edna Madai Méndez-Hernández
- 1Hospital Regional de Alta Especialidad de Ixtapaluca, Carretera Federal México Puebla Km 35, Ixtapaluca, 56530, Mexico
| | - Jesús Hernández-Tinoco
- 2Biomedical Research Laboratory. Faculty of Medicine and Nutrition, Juárez University of Durango State, Avenida Universidad S/N, Durango, 34000, Mexico
| | - José Manuel Salas-Pacheco
- 3Institute for Scientific Research "Dr. Roberto Rivera-Damm", Juárez University of Durango State, Avenida Universidad S/N, Durango, 34000, Mexico
| | - Luis Francisco Sánchez-Anguiano
- 3Institute for Scientific Research "Dr. Roberto Rivera-Damm", Juárez University of Durango State, Avenida Universidad S/N, Durango, 34000, Mexico
| | - Oscar Arias-Carrión
- 4Unidad de Trastornos del Movimiento y Sueño, Hospital General Dr. Manuel Gea González, Ciudad de México, Mexico
| | - Ada Agustina Sandoval-Carrillo
- 3Institute for Scientific Research "Dr. Roberto Rivera-Damm", Juárez University of Durango State, Avenida Universidad S/N, Durango, 34000, Mexico
| | - Francisco Xavier Castellanos-Juárez
- 3Institute for Scientific Research "Dr. Roberto Rivera-Damm", Juárez University of Durango State, Avenida Universidad S/N, Durango, 34000, Mexico
| | | | - Cosme Alvarado-Esquivel
- 2Biomedical Research Laboratory. Faculty of Medicine and Nutrition, Juárez University of Durango State, Avenida Universidad S/N, Durango, 34000, Mexico
| |
Collapse
|
15
|
Qian W, Yan W, Lv C, Bai R, Wang T. Occurrence and genetic characterization of Toxoplasma gondii and Neospora caninum in slaughtered domestic rabbits in central China. ACTA ACUST UNITED AC 2019; 26:36. [PMID: 31198175 PMCID: PMC6568018 DOI: 10.1051/parasite/2019035] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2019] [Accepted: 05/24/2019] [Indexed: 11/28/2022]
Abstract
Currently, information on the occurrence and genetic characterization of Toxoplasma gondii and Neospora caninum in tissues of rabbits in China is lacking. In this study, brain and heart samples from 470 slaughtered domestic rabbits were collected in Henan Province, Central China. The occurrence rate of T. gondii and N. caninum DNA detected by nested PCR was 2.8% and 2.1%, respectively. There were no significant differences (p > 0.05) in the frequency of the two parasite infections in relation to sex, breed, and region. Three out of 13 T. gondii-positive samples were completely or partially genotyped at 11 genetic markers using PCR-RFLP, and one was identified as ToxoDB genotype #9. For N. caninum, three different sequences at the ITS1 region and two genotypes at the MS5 microsatellite locus were identified. To our knowledge, this is the first genetic characterization of N. caninum isolates from rabbits.
Collapse
Affiliation(s)
- Weifeng Qian
- College of Animal Science and Technology, Henan University of Science and Technology, No. 263 Kaiyuan Road, Luolong District, Luoyang 471003, PR China
| | - Wenchao Yan
- College of Animal Science and Technology, Henan University of Science and Technology, No. 263 Kaiyuan Road, Luolong District, Luoyang 471003, PR China
| | - Chaochao Lv
- College of Animal Science and Technology, Henan University of Science and Technology, No. 263 Kaiyuan Road, Luolong District, Luoyang 471003, PR China
| | - Rongzhen Bai
- College of Animal Science and Technology, Henan University of Science and Technology, No. 263 Kaiyuan Road, Luolong District, Luoyang 471003, PR China
| | - Tianqi Wang
- College of Animal Science and Technology, Henan University of Science and Technology, No. 263 Kaiyuan Road, Luolong District, Luoyang 471003, PR China
| |
Collapse
|
16
|
Bahadori ES, Sadraei J, Dalimi A. New prevalence surveillance of Toxoplasma gondii among rodents and stray cats by ELISA avidity and nested PCR methods, Northeast of Iran. J Parasit Dis 2019; 43:360-367. [PMID: 31406400 DOI: 10.1007/s12639-019-01099-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2018] [Accepted: 02/18/2019] [Indexed: 11/24/2022] Open
Abstract
Rodents and stray cats are the sources of many parasitic infections including T. gondii, for other animals and human. Toxoplasmosis has a wide range of laboratory factors in its intermediate and definite hosts. Regarding the importance of rodents and stray cats as the hosts that spread the Toxoplasma gondii, it is necessary to obtain comprehensive information about these animals in the life cycle of T. gondii. The objective was to investigate the new prevalence of toxoplasmosis among target animals in Iran, using GRA6 gene in combinacion with ELISA avidity. In this study, 286 rodents and 210 stray cats were collected and their heart tissues extracted to obtain DNA, blood samples and IgG Ab of T.gondii parasite. We detected the positive tissue samples in our study by the nested-PCR method. Then, we examined T. gondii IgG ELISA avidity for assessment of toxoplasmosis among rodents and stray cats. This study, was conducted in January to March 2017, based on the prevalence study. The findings revealed that 246/286 (86.01%) of rodents and 180/210 (85.71%) of stray cats were positive by IgG ELISA avidity methods. moreover, 68 rodents samples and 38 stray cats samples were positive concerning the GRA6 Toxoplasma gene; and these positive samples were at intermediate levels for IgG avidity. We concluded that the new prevalence of toxoplasmosis among rodents and stray cats was at high levels, using the serologic method in Northeast of Iran and the results of quantitative ELISA avidity were as the same as those of the nested-PCR for detecting recent toxoplasmosis in these hosts.
Collapse
Affiliation(s)
- Ehsan Shariat Bahadori
- Department of Parasitology, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | - Javid Sadraei
- Department of Parasitology, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | - Abdolhosein Dalimi
- Department of Parasitology, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| |
Collapse
|
17
|
Soltani S, Foroutan M, Afshari H, Hezarian M, Kahvaz MS. Seroepidemiological evaluation of Toxoplasma gondii immunity among the general population in southwest of Iran. J Parasit Dis 2018; 42:636-642. [PMID: 30538365 DOI: 10.1007/s12639-018-1047-2] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2018] [Accepted: 10/17/2018] [Indexed: 12/11/2022] Open
Abstract
Toxoplasmosis is a cosmopolitan zoonotic infection, caused by a unicellular protozoan parasite known as Toxoplasma gondii (T. gondii) that belongs to the phylum Apicomplexa. The present investigation was aimed to evaluate the seroprevalence of T. gondii infection in the general population of Abadan city. In this cross-sectional study, a total of 496 subjects were participated. Anti-T. gondii IgG and IgM antibodies were tested using commercially available enzyme-linked immunosorbent assay (ELISA). Moreover, a structured questionnaire was completed for each person. Out of 496 subjects, 188 (37.9%) and 30 (6.05%) samples were seropositive for IgG and IgM, respectively. The more seroprevalence was found during spring season, among female subjects, in rural inhabitants, in persons with the education level of diploma or lower, from the subjects with a history of contact with cat, in individuals who consumed raw/undercooked meat, and amongst who drink unpurified water. The results showed that inhabitants of tropical areas, may be moderately exposed to T. gondii. Increase of knowledge of people about toxoplasmosis, certainly affects in reduction of the infection.
Collapse
Affiliation(s)
- Shahrzad Soltani
- Student Research Committee, Abadan School of Medical Sciences, Abadan, Iran
| | - Masoud Foroutan
- 2Department of Parasitology, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | - Hamed Afshari
- Student Research Committee, Abadan School of Medical Sciences, Abadan, Iran
| | - Maryam Hezarian
- Student Research Committee, Abadan School of Medical Sciences, Abadan, Iran
| | - Mehdi Sagha Kahvaz
- Student Research Committee, Abadan School of Medical Sciences, Abadan, Iran
| |
Collapse
|