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Li D, Ren S, Wang X, Chen L, You S, Tang Y, Chen L. Gated nanoprobe utilizing metal-organic frameworks for identifying and distinguishing between the wild strains and the vaccine strains of brucella. Analyst 2024; 149:1618-1631. [PMID: 38299740 DOI: 10.1039/d4an00014e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2024]
Abstract
In the assay for Brucella, the identification and differentiation of wild strains and vaccine strains present a significant challenge. Currently, there aren't any commercially available product to address this issue. In this study, we have developed a novel gated nanoprobe by utilizing Metal-Organic Frameworks (MOFs) as a scaffold and hairpin DNA as a "gating switch". Specifically, Probe 1 with hairpin structure (P1h) targets a gene that is present in both wild strains Y3 (B. melitensis biovar 3) and vaccine strains A19 (Brucella abortus strains A19). We successfully applied this probe to screen positive samples of Brucella without any cross-reactivity with other substances. Additionally, we identified another specific gene exclusively found in wild strains, which serves as Probe 2 with hairpin structure (P2h) to confirm the strain type. Simultaneous detachment of both P1h and P2h from the MOFs leads to the release of Rhodamine 6G (Rho 6G) and Fluorescein (Flu), specifically indicating the presence of wild strains. If only P1h detaches and the Flu signal is detected, it suggests the presence of vaccine strains. Importantly, this method offers high accuracy, with a detection rate of 90% and a recovery rate of 94.71% to 107.65%, while avoiding cross-reactions with MO and TB. This one-step experiment provides reliable identification and differentiation of Y3 and A19, addressing concerns related to long periodicity, interference from individual variations, and the complex design of primers in existing laboratory methods. Furthermore, our approach successfully detects target 1 (T1) and target 2 (T2) at concentrations ranging from 10-6 M to 10-9 M, with a detection limit of 6.7 × 10-10 M and 6.4 × 10-10 M, respectively. Importantly, our strategy is cost-effective (around $1) and offers higher detection efficiency compared to traditional laboratory methods.
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Affiliation(s)
- Dong Li
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science; Shandong Key Laboratory of Biochemical Analysis; Key Laboratory of Analytical Chemistry for Life Science in Universities of Shandong; Key Laboratory of Eco-chemical Engineering; College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, PR China.
| | - Shuna Ren
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science; Shandong Key Laboratory of Biochemical Analysis; Key Laboratory of Analytical Chemistry for Life Science in Universities of Shandong; Key Laboratory of Eco-chemical Engineering; College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, PR China.
| | - Xiaotong Wang
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science; Shandong Key Laboratory of Biochemical Analysis; Key Laboratory of Analytical Chemistry for Life Science in Universities of Shandong; Key Laboratory of Eco-chemical Engineering; College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, PR China.
| | - Lili Chen
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science; Shandong Key Laboratory of Biochemical Analysis; Key Laboratory of Analytical Chemistry for Life Science in Universities of Shandong; Key Laboratory of Eco-chemical Engineering; College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, PR China.
| | - Shuang You
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science; Shandong Key Laboratory of Biochemical Analysis; Key Laboratory of Analytical Chemistry for Life Science in Universities of Shandong; Key Laboratory of Eco-chemical Engineering; College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, PR China.
| | - Yan Tang
- Xinjiang Agricultural vocational Technical College; Institute of Western Agriculture, the Chinese Academy of Agricultural sciences, PR China.
| | - Lihua Chen
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science; Shandong Key Laboratory of Biochemical Analysis; Key Laboratory of Analytical Chemistry for Life Science in Universities of Shandong; Key Laboratory of Eco-chemical Engineering; College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, PR China.
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Djibril ASD, Bothon FTD, Boko KC, Koutinhouin BG, Farougou S. Farmers' perceptions of bovine brucellosis in Benin. Vet World 2024; 17:434-447. [PMID: 38595653 PMCID: PMC11000487 DOI: 10.14202/vetworld.2024.434-447] [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: 10/21/2023] [Accepted: 02/05/2024] [Indexed: 04/11/2024] Open
Abstract
Background and Aim Cattle are the main source of meat in Benin. To improve the attitudes and practices of cattle breeders in relation to bovine brucellosis, a study has been carried out in Benin according to different agroecological zones. This study aimed to assess farmers' knowledge and practices concerning bovine brucellosis to generate essential information for control programs and public health interventions. Materials and Methods The study was conducted from February to May 2022, during which 608 farmers were interviewed using a structured questionnaire that provided information on socioeconomic characteristics, knowledge, and practices related to bovine brucellosis. Analysis of variance, Poisson regression, and the proportion comparison test were used to compare these characteristics in the different agroecological zones. At the end of the surveys, three distinct and homogeneous groups of perceptions (hierarchical classification of Multiple Correspondence Analysis components of R software) of bovine brucellosis were identified (these groups only consider farmers who declared knowledge of the disease). Groups were formed by applying the multiple correspondence analysis function of the FactoMineR library in R software, followed by a hierarchical ascending classification using the hierarchical clustering on principal component function of the same software (Agrocampus Rennes, France). Results Only 38% of respondents were aware of brucellosis. Knowledge of brucellosis was not related to sex or education level but was higher among farmers in agroecological Zones 1 and 4. Ethnic Dendi herders (62.16%) had better knowledge of the disease than those from other sociolinguistic groups (Somba: 50%, Fulani: 40.91%, Baribas: 26.97%, and others: 8.82%). Reduced milk production (98.29%), presence of hygroma (87.18%), and abortion (56.84%) are the main signs reported by herders familiar with the disease. All three groups had good knowledge of the disease and its zoonotic nature. Groups 1 (96% of breeders) and 2 (2.14%) were aware of the risk factors (contact with affected animals, the consumption of raw milk, the handling of runts, and reproductive rejection). In the case of Brucella, they prefer to treat animals rather than sell them and use both traditional and modern medicines. Group 3 (1.71%) did not know the risk factors and preferred to sell animals in the event of illness. Conclusion Pastoralists need to be made aware of the mode of transmission of bovine brucellosis, its clinical manifestations, its impact on animal health, and the zoonotic nature of the disease (impact on public health) so that bovine brucellosis can be rapidly detected in herds.
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Affiliation(s)
- Adeyemi Sharafa Dine Djibril
- Research Unit on Communicable Diseases, Polytechnic School of Abomey-Calavi, University of Abomey-Calavi, Cotonou, Benin
- Research Unit on Plant Extracts and Natural Flavors, Applied Chemistry Study and Research Laboratory, Polytechnic School of Abomey-Calavi, University of Abomey-Calavi, Cotonou, Benin
| | - Fifa Théomaine Diane Bothon
- Research Unit on Plant Extracts and Natural Flavors, Applied Chemistry Study and Research Laboratory, Polytechnic School of Abomey-Calavi, University of Abomey-Calavi, Cotonou, Benin
- Kaba Laboratory for Research in Chemistry and Applications; National Higher Institute of Industrial Technology, National University of Sciences, Engineering Technologies and Mathematics, Benin
| | - Kadoeto Cyrille Boko
- Research Unit on Communicable Diseases, Polytechnic School of Abomey-Calavi, University of Abomey-Calavi, Cotonou, Benin
| | | | - Souaibou Farougou
- Research Unit on Communicable Diseases, Polytechnic School of Abomey-Calavi, University of Abomey-Calavi, Cotonou, Benin
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Zavattieri L, Muñoz González F, Ferrero MC, Baldi PC. Immune Responses Potentially Involved in the Gestational Complications of Brucella Infection. Pathogens 2023; 12:1450. [PMID: 38133333 PMCID: PMC10747693 DOI: 10.3390/pathogens12121450] [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: 11/17/2023] [Revised: 12/09/2023] [Accepted: 12/11/2023] [Indexed: 12/23/2023] Open
Abstract
Infection by Brucella species in pregnant animals and humans is associated with an increased risk of abortion, preterm birth, and transmission of the infection to the offspring. The pathogen has a marked tropism for the placenta and the pregnant uterus and has the ability to invade and replicate within cells of the maternal-fetal unit, including trophoblasts and decidual cells. Placentitis is a common finding in infected pregnant animals. Several proinflammatory factors have been found to be increased in both the placenta of Brucella-infected animals and in trophoblasts or decidual cells infected in vitro. As normal pregnancies require an anti-inflammatory placental environment during most of the gestational period, Brucella-induced placentitis is thought to be associated with the obstetric complications of brucellosis. A few studies suggest that the blockade of proinflammatory factors may prevent abortion in these cases.
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Affiliation(s)
- Lucía Zavattieri
- Cátedra de Inmunología, Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, Buenos Aires 1113, Argentina; (L.Z.); (F.M.G.); (M.C.F.)
- Instituto de Estudios de la Inmunidad Humoral (IDEHU), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Universidad de Buenos Aires, Buenos Aires 1113, Argentina
| | - Florencia Muñoz González
- Cátedra de Inmunología, Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, Buenos Aires 1113, Argentina; (L.Z.); (F.M.G.); (M.C.F.)
- Instituto de Estudios de la Inmunidad Humoral (IDEHU), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Universidad de Buenos Aires, Buenos Aires 1113, Argentina
| | - Mariana C. Ferrero
- Cátedra de Inmunología, Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, Buenos Aires 1113, Argentina; (L.Z.); (F.M.G.); (M.C.F.)
- Instituto de Estudios de la Inmunidad Humoral (IDEHU), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Universidad de Buenos Aires, Buenos Aires 1113, Argentina
| | - Pablo C. Baldi
- Cátedra de Inmunología, Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, Buenos Aires 1113, Argentina; (L.Z.); (F.M.G.); (M.C.F.)
- Instituto de Estudios de la Inmunidad Humoral (IDEHU), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Universidad de Buenos Aires, Buenos Aires 1113, Argentina
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Tan C, Teoh Z, Haslam D, Gosdin C. A 2-month-old Infant with 14 Days of Fever and Hepatosplenomegaly. Pediatr Rev 2023; 44:S22-S24. [PMID: 37777218 DOI: 10.1542/pir.2021-005393] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/02/2023]
Affiliation(s)
- Christelle Tan
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH
- Cincinnati Children's Hospital Medical Center Pediatric/Psychiatry/Child & Adolescent Psychiatry Residency Program, Cincinnati, OH
| | - Zheyi Teoh
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH
- Division of Infectious Diseases, Cincinnati Children's Hospital Medical Center, Cincinnati, OH
| | - David Haslam
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH
- Division of Infectious Diseases, Cincinnati Children's Hospital Medical Center, Cincinnati, OH
| | - Craig Gosdin
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH
- Department of Hospital Medicine, Cincinnati Children's Hospital Medical Center, Cincinnati, OH
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Congenital brucellosis associated with subsequent Klebsiella pneumoniae co-infection in a premature neonate: a rare case report. J Infect Public Health 2022; 15:586-588. [DOI: 10.1016/j.jiph.2022.04.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2022] [Revised: 04/15/2022] [Accepted: 04/17/2022] [Indexed: 11/19/2022] Open
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Xu D, Li X, Cheng B, Zhou Y, Zhou M, Gu W, Chen Z, Wang Y. Congenital Brucellosis: A Case Report. Vector Borne Zoonotic Dis 2021; 21:727-730. [PMID: 34534025 DOI: 10.1089/vbz.2021.0015] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
Background: Brucellosis is the most common zoonotic infection worldwide, and is caused by bacterial genus Brucella. The disease is rarely transmitted through human-to-human transmission. Few cases have been reported about vertical transmission of human brucellosis. Herein, we reported a case of congenital brucellosis, with clear evidence of pathogen detected in mother's placental specimen. Case Presentation: A 34-day-old girl was admitted to the department of pulmonology with fever for 8 days. Three blood samples and one sample of cerebrospinal fluid were positive for Brucella melitensis. The diagnosis of brucellosis and B. melitensis meningitis were established, along with hyperbilirubinemia and liver dysfunction. Treatment of rifampicin (for 6 weeks) and meropenem (for 2 weeks) was administered. However, the disease relapsed within 18 days. Thereafter, a combination therapy of rifampicin and sulfamethoxazole/trimethiprim (SMZ/TMP) was administered for 8 weeks. The disease relapsed again in 42 days. For chronic brucellosis, three courses of combination therapy of rifampicin and SMZ/TMP was administered. The mother had fatigue and arthralgia for 2 weeks, fever and membrane rupture 1 day before the baby was born. B. melitensis DNA was detected in the mother's placental specimen by next-generation sequencing and bacterial identification under microscope proved chorioamnionitis. Conclusions: We reported a confirmed case of congenital brucellosis. This disease should be closely monitored even in nonepidemic areas. The treatment of brucellosis in infancy faces challenges of drug choice and disease relapse.
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Affiliation(s)
- Dan Xu
- Department of Pulmonology, The Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou, China
| | - Xuejing Li
- Department of Pulmonology, The Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou, China
| | - Beilei Cheng
- Department of Pulmonology, The Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou, China
| | - Yunlian Zhou
- Department of Pulmonology, The Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou, China
| | - Mingming Zhou
- Department of Clinical Laboratory, and The Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou, China
| | - Weizhong Gu
- Department of Pathology, The Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou, China
| | - Zhimin Chen
- Department of Pulmonology, The Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou, China
| | - Yingshuo Wang
- Department of Pulmonology, The Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou, China
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Vaghela P, Lakum M, Gabani C, Mangukiya H. Congenital brucellosis presented with hypertrophic obstructive cardiomyopathy and persistent multidrug-resistant meningitis. J Clin Neonatol 2021. [DOI: 10.4103/jcn.jcn_141_20] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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Mohzari YA, Alshuraim RA, Asdaq SMB, ALanazi SO, Alghamdi N, Alrashed AA, Hassounhe AK, Alzaaqi MA. Congenital brucellosis: A case report. J Int Med Res 2020; 48:300060520975576. [PMID: 33290133 PMCID: PMC7727064 DOI: 10.1177/0300060520975576] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Although rare, brucellosis is endemic in the Kingdom of Saudi Arabia (KSA). In the case presented here, a neonate was born at 29 weeks gestation with severe respiratory depression, pyrexia; hypotension and an elevated white blood cell count. Her mother was a 19-year-old pregnant woman who developed premature rupture of the membranes and went into labour early. Sepsis was suspected and so the neonate received dobutamine and empiric ampicillin/gentamicin. The mother reported visiting a farm during her pregnancy and so congenital brucellosis was considered a possibility. Blood cultures were positive for Gram-negative coccobacilli and serology confirmed the presence of Brucella abortus and B. meltiness. Antibiotic treatment was changed to rifampin/gentamicin/ciprofloxacin but on day 17 the baby deteriorated and gentamicin was discontinued and meropenem was added. The neonate gradually improved; meropenem was discontinued on day 24 and the baby was discharged from hospital on day 38.
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Affiliation(s)
- Yahya Ali Mohzari
- Clinical Pharmacy Department, King Saud Medical City, Riyadh, Saudi Arabia
| | | | | | - Saud O ALanazi
- Northern Area Armed Forces Hospital, Hafer Al Batin, Saudi Arabia
| | - Najwa Alghamdi
- Clinical pharmacy department, Adham General Hospital, Adham, Saudi Arabia
| | - Ahmed A Alrashed
- Pharmaceutical Service Department, King Fahad Medical City, Riyadh, Saudi Arabia
| | | | - Meshal A Alzaaqi
- Head of Paediatric Inpatient Pharmacy, King Saud Medical City, Riyadh, Saudi Arabia
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Bosilkovski M, Arapović J, Keramat F. Human brucellosis in pregnancy - an overview. Bosn J Basic Med Sci 2020; 20:415-422. [PMID: 31782698 PMCID: PMC7664790 DOI: 10.17305/bjbms.2019.4499] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2019] [Accepted: 11/26/2019] [Indexed: 11/24/2022] Open
Abstract
Human brucellosis during pregnancy is characterized by significantly less pronounced adverse obstetric outcomes than in animals, but with remarkably more adverse obstetric outcomes when compared to healthy pregnant women. Seroprevalence of brucellosis in pregnancy and cumulative incidence of brucellosis cases per 1000 delivered obstetrical discharges in endemic regions were reported to be 1.5–12.2% and 0.42–3.3, respectively. Depending on the region, the frequency of pregnant women in the cohorts of patients with brucellosis was from 1.5% to 16.9%. The most common and the most dramatic unfavorable outcomes during brucellosis in pregnancy are the obstetric ones, manifested as abortions (2.5–54.5%), intrauterine fetal death (0–20.6%), or preterm deliveries (1.2–28.6%), depending on the stage of pregnancy. Other unfavorable outcomes due to brucellosis are addressed to infant (congenital/neonatal brucellosis, low birth weight, development delay, or even death), the clinical course of disease in mother, and delivery team exposure. When diagnosed in pregnant women, brucellosis should be treated as soon as possible. Early administration of adequate therapy significantly reduces the frequency of adverse outcomes. Rifampicin in combination with trimethoprim-sulfamethoxazole for 6 weeks is the most commonly used and recommended regimen, although monotherapies with each of these two drugs are also widely used while waiting for the results from prospective randomized therapeutic trials. As no effective human vaccine exists, screening of pregnant women and education of all women of childbearing age about brucellosis should be compulsory preventive measures in endemic regions.
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Affiliation(s)
- Mile Bosilkovski
- University Clinic for Infectious Diseases and Febrile Conditions, Medical Faculty Skopje, Skopje, Republic of North Macedonia; Working Group on Zoonoses, International Society for Chemotherapy, Aberdeen, United Kingdom; Brucellosis Research Center, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Jurica Arapović
- Department of Infectious Diseases, University Clinical Hospital Mostar, Mostar, Bosnia and Herzegovina; Faculty of Medicine, University of Mostar, Mostar, Bosnia and Herzegovina
| | - Fariba Keramat
- Brucellosis Research Center, Hamadan University of Medical Sciences, Hamadan, Iran
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Zhang N, Zhou H, Huang DS, Guan P. Brucellosis awareness and knowledge in communities worldwide: A systematic review and meta-analysis of 79 observational studies. PLoS Negl Trop Dis 2019; 13:e0007366. [PMID: 31048848 PMCID: PMC6497230 DOI: 10.1371/journal.pntd.0007366] [Citation(s) in RCA: 49] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2019] [Accepted: 04/08/2019] [Indexed: 01/26/2023] Open
Abstract
BACKGROUND Brucellosis is regarded as a major zoonotic infection worldwide. Awareness and knowledge of brucellosis among occupational workers is considered an important aspect of brucellosis control in both humans and animals. The aim of this study was to explore the distributions of the pooled awareness level and the knowledge level of the disease worldwide. METHODS A meta-analysis was carried out to obtain pooled brucellosis awareness levels and knowledge levels of respondents regarding the zoonotic nature of brucellosis, mode of brucellosis transmission, and brucellosis symptoms in animals and humans. The analysis was conducted and reported in accordance with the Preferred Reporting Items for Systematic Review and Meta-analyses guidelines. RESULTS A total of seventy-nine original articles reporting the brucellosis awareness levels of in populations from 22 countries were assessed. The total pooled awareness level of brucellosis was 55.5%, and the pooled awareness levels regarding the zoonotic nature of brucellosis, mode of brucellosis transmission, signs of human brucellosis and signs of animal brucellosis were 37.6%, 35.9%, 41.6%, and 28.4% respectively. The pooled awareness level was higher than the brucellosis-related knowledge level. Subgroup analyses showed that no obvious differences in brucellosis awareness levels between high-risk populations in Asia and Africa. Health workers (including human health workers and veterinarians) had the greatest overall awareness and knowledge of human brucellosis. The overall awareness levels and knowledge levels of livestock owners (farmers) and herders were higher than those of dairy farmers and abattoir workers. In addition, awareness and knowledge levels were higher among people who were involved in bovine, caprine and ovine animal production or in caprine and ovine animal production than among people who were involved in only bovine animal production. CONCLUSIONS Insufficient awareness and knowledge of brucellosis were observed in the original studies conducted mainly in Asia and Africa. Interventions to improve public knowledge about brucellosis are urgently needed.
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Affiliation(s)
- Ning Zhang
- Department of Epidemiology, School of Public Health, China Medical University, Shenyang, China
| | - Hao Zhou
- Department of Impression Evidence Examination Technology, Criminal Investigation Police University of China, Shenyang, China
| | - De-Sheng Huang
- Department of Epidemiology, School of Public Health, China Medical University, Shenyang, China
- Department of Mathematics, School of Fundamental Sciences, China Medical University, Shenyang, China
| | - Peng Guan
- Department of Epidemiology, School of Public Health, China Medical University, Shenyang, China
- * E-mail:
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Zhao M, Huang F, Zhang A, Zhang B, Zeng L, Xu J, Wang J. Congenital brucellosis in a Chinese preterm neonate: A case report. J Int Med Res 2019; 47:2296-2301. [PMID: 30971153 PMCID: PMC6567740 DOI: 10.1177/0300060519838921] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
Abstract
Although extremely rare, congenital brucellosis can occur via perinatal transmission. We report a case of an infant born prematurely at 34–36 weeks' gestation who had pyrexia, shortness of breath, hepatosplenomegaly and thrombocytopenia. Blood cultures were positive for Gram-negative coccobacilli and Brucella infection was suspected. While, serological tests were negative for Brucella antibodies, B. melitensis infection was confirmed by polymerase chain reaction (PCR). Serology of the parents’ blood confirmed the presence of Brucella. The family did not live in an endemic area but had ridden a camel 12 months before the pregnancy. The bacteria may have been sexually transmitted from father to mother and then to foetus via an intrauterine infection. In endemic areas or where the family has been in close contact with infected animals, brucellosis should be suspected in a severely ill neonate with an unknown infection. Thorough medical histories from the family are essential as early diagnosis and prompt therapy will almost certainly improve neonatal outcome.
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Affiliation(s)
- Menghua Zhao
- 1 Children's Medical Centre, Hunan Provincial People's Hospital/The First Affiliated Hospital of Hunan Normal University, Changsha, Hunan, China
| | - Furong Huang
- 1 Children's Medical Centre, Hunan Provincial People's Hospital/The First Affiliated Hospital of Hunan Normal University, Changsha, Hunan, China
| | - Aimin Zhang
- 1 Children's Medical Centre, Hunan Provincial People's Hospital/The First Affiliated Hospital of Hunan Normal University, Changsha, Hunan, China
| | - Bing Zhang
- 1 Children's Medical Centre, Hunan Provincial People's Hospital/The First Affiliated Hospital of Hunan Normal University, Changsha, Hunan, China
| | - Ling Zeng
- 2 Department of Clinical Laboratory, Hunan Provincial People's Hospital/The First Affiliated Hospital of Hunan Normal University, Changsha, Hunan, China
| | - Jun Xu
- 1 Children's Medical Centre, Hunan Provincial People's Hospital/The First Affiliated Hospital of Hunan Normal University, Changsha, Hunan, China
| | - Juanmei Wang
- 1 Children's Medical Centre, Hunan Provincial People's Hospital/The First Affiliated Hospital of Hunan Normal University, Changsha, Hunan, China
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García-Méndez KB, Hielpos SM, Soler-Llorens PF, Arce-Gorvel V, Hale C, Gorvel JP, O'Callaghan D, Keriel A. Infection by Brucella melitensis or Brucella papionis modifies essential physiological functions of human trophoblasts. Cell Microbiol 2019; 21:e13019. [PMID: 30817085 DOI: 10.1111/cmi.13019] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2018] [Revised: 02/14/2019] [Accepted: 02/15/2019] [Indexed: 12/01/2022]
Abstract
Brucellosis is a zoonosis caused by bacteria of the Brucella genus. In ruminants, brucellosis causes abortion, followed by chronic infection and secretion of bacteria in milk. In humans, it usually presents as flu-like symptoms, with serious complications if untreated. Epidemiological studies have only recently established that brucellosis can also cause pregnancy complications in women, but the pathogenic mechanisms are unknown. Pioneering studies in ruminants showed that Brucella infect trophoblasts and then colonise the placenta where they grow to high density. A recent study showed that the main zoonotic Brucella species can infect human cytotrophoblasts (CTB) and extravillous trophoblasts (EVT). In this work, we show that Brucella papionis (associated with stillbirth in primates) also infects human trophoblasts. However, it replicates actively in CTB, whereas its replication is very restricted within EVT. We also observed alteration of several trophoblastic functions upon infection by B. papionis or Brucella melitensis (the most prevalent species in human brucellosis). Infection altered the production of hormones, the ability of CTB to form syncytiotrophoblasts, and the invasion capacity of EVT. We also found that infection can spread between different types of trophoblasts. These findings constitute a new step in understanding how Brucella infection causes adverse pregnancy outcomes.
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Affiliation(s)
- Karellen B García-Méndez
- VBMI, INSERM, Université de Montpellier, Nîmes, France.,Centre National de Référence des Brucella, CHU de Nîmes, Nîmes, France
| | - Soledad M Hielpos
- VBMI, INSERM, Université de Montpellier, Nîmes, France.,Centre National de Référence des Brucella, CHU de Nîmes, Nîmes, France
| | | | | | - Christine Hale
- Microbial Pathogenesis, Wellcome Trust Sanger Institute, Hinxton, UK
| | | | - David O'Callaghan
- VBMI, INSERM, Université de Montpellier, Nîmes, France.,Centre National de Référence des Brucella, CHU de Nîmes, Nîmes, France
| | - Anne Keriel
- VBMI, INSERM, Université de Montpellier, Nîmes, France.,Centre National de Référence des Brucella, CHU de Nîmes, Nîmes, France
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