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Rahman SU, Weng TN, Qadeer A, Nawaz S, Ullah H, Chen CC. Omega-3 and omega-6 polyunsaturated fatty acids and their potential therapeutic role in protozoan infections. Front Immunol 2024; 15:1339470. [PMID: 38633251 PMCID: PMC11022163 DOI: 10.3389/fimmu.2024.1339470] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2023] [Accepted: 03/21/2024] [Indexed: 04/19/2024] Open
Abstract
Protozoa exert a serious global threat of growing concern to human, and animal, and there is a need for the advancement of novel therapeutic strategies to effectively treat or mitigate the impact of associated diseases. Omega polyunsaturated fatty acids (ω-PUFAs), including Omega-3 (ω-3) and omega-6 (ω-6), are constituents derived from various natural sources, have gained significant attention for their therapeutic role in parasitic infections and a variety of essential structural and regulatory functions in animals and humans. Both ω-3 and ω-6 decrease the growth and survival rate of parasites through metabolized anti-inflammatory mediators, such as lipoxins, resolvins, and protectins, and have both in vivo and in vitro protective effects against various protozoan infections. The ω-PUFAs have been shown to modulate the host immune response by a commonly known mechanism such as (inhibition of arachidonic acid (AA) metabolic process, production of anti-inflammatory mediators, modification of intracellular lipids, and activation of the nuclear receptor), and promotion of a shift towards a more effective immune defense against parasitic invaders by regulation the inflammation like prostaglandins, leukotrienes, thromboxane, are involved in controlling the inflammatory reaction. The immune modulation may involve reducing inflammation, enhancing phagocytosis, and suppressing parasitic virulence factors. The unique properties of ω-PUFAs could prevent protozoan infections, representing an important area of study. This review explores the clinical impact of ω-PUFAs against some protozoan infections, elucidating possible mechanisms of action and supportive therapy for preventing various parasitic infections in humans and animals, such as toxoplasmosis, malaria, coccidiosis, and chagas disease. ω-PUFAs show promise as a therapeutic approach for parasitic infections due to their direct anti-parasitic effects and their ability to modulate the host immune response. Additionally, we discuss current treatment options and suggest perspectives for future studies. This could potentially provide an alternative or supplementary treatment option for these complex global health problems.
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Affiliation(s)
- Sajid Ur Rahman
- School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, China
- Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai, China
- College of Animal Science and Technology, Anhui Agricultural University, Hefei, China
| | - Tzu-Nin Weng
- Department of Stomatology, Ditmanson Medical Foundation Chia-Yi Christian Hospital, Chiayi, Taiwan
| | - Abdul Qadeer
- Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai, China
- Department of Cell Biology, School of Life Sciences, Central South University, Changsha, China
| | - Saqib Nawaz
- Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai, China
| | - Hanif Ullah
- Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai, China
- West China Hospital, School of Nursing, Sichuan University, Chengdu, China
| | - Chien-Chin Chen
- Department of Pathology, Ditmanson Medical Foundation Chia-Yi Christian Hospital, Chiayi, Taiwan
- Department of Cosmetic Science, Chia Nan University of Pharmacy and Science, Tainan, Taiwan
- Department of Biotechnology and Bioindustry Sciences, College of Bioscience and Biotechnology, National Cheng Kung University, Tainan, Taiwan
- Doctoral Program in Translational Medicine, Rong Hsing Research Center for Translational Medicine, National Chung Hsing University, Taichung, Taiwan
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Ribeiro Franco PI, do Carmo Neto JR, Guerra RO, Ferreira da Silva PE, Braga YLL, Nunes Celes MR, de Menezes LB, Miguel MP, Machado JR. Melatonin: A look at protozoal and helminths. Biochimie 2024; 219:96-109. [PMID: 37541568 DOI: 10.1016/j.biochi.2023.07.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2023] [Revised: 07/24/2023] [Accepted: 07/29/2023] [Indexed: 08/06/2023]
Abstract
Melatonin is a pleiotropic neurohormone found in different animal, plant, and microorganism species. It is a product resulting from tryptophan metabolism in the pineal gland and is widely known for its ability to synchronize the circadian rhythm to antitumor functions in different types of cancers. The molecular mechanisms responsible for its immunomodulatory, antioxidant and cytoprotective effects involve binding to high-affinity G protein-coupled receptors and interactions with intracellular targets that modulate signal transduction pathways. In vitro and in vivo studies have reported the therapeutic potential of melatonin in different infectious and parasitic diseases. In this review, the protective and pathophysiological roles of melatonin in fighting protozoan and helminth infections and the possible mechanisms involved against these stressors will be discussed.
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Affiliation(s)
- Pablo Igor Ribeiro Franco
- Instituto de Patologia Tropical e Saúde Pública, Programa de Pós-Graduação em Medicina Tropical e Saúde Pública, Universidade Federal de Goiás, Goiânia, GO, Brazil.
| | - José Rodrigues do Carmo Neto
- Instituto de Patologia Tropical e Saúde Pública, Programa de Pós-Graduação em Medicina Tropical e Saúde Pública, Universidade Federal de Goiás, Goiânia, GO, Brazil
| | - Rhanoica Oliveira Guerra
- Departamento de Biologia Celular, Escola de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP, Brazil
| | - Priscilla Elias Ferreira da Silva
- Departamento de Microbiologia, Imunologia e Parasitologia, Instituto de Ciências Biológicas e Naturais, Universidade Federal do Triângulo Mineiro, Uberaba, MG, Brazil
| | - Yarlla Loyane Lira Braga
- Instituto de Patologia Tropical e Saúde Pública, Programa de Pós-Graduação em Medicina Tropical e Saúde Pública, Universidade Federal de Goiás, Goiânia, GO, Brazil
| | - Mara Rúbia Nunes Celes
- Instituto de Patologia Tropical e Saúde Pública, Programa de Pós-Graduação em Medicina Tropical e Saúde Pública, Universidade Federal de Goiás, Goiânia, GO, Brazil
| | - Liliana Borges de Menezes
- Escola de Veterinária e Zootecnia, Programa de Pós-Graduação em Ciência Animal, Universidade Federal de Goiás, Goiânia, GO, Brazil; Setor de Patologia Geral, Instituto de Patologia Tropical e Saúde Pública, Universidade Federal de Goiás, Goiânia, GO, Brazil
| | - Marina Pacheco Miguel
- Escola de Veterinária e Zootecnia, Programa de Pós-Graduação em Ciência Animal, Universidade Federal de Goiás, Goiânia, GO, Brazil; Setor de Patologia Geral, Instituto de Patologia Tropical e Saúde Pública, Universidade Federal de Goiás, Goiânia, GO, Brazil
| | - Juliana Reis Machado
- Departamento de Patologia, Genética e Evolução, Instituto de Ciências Biológicas e Naturais, Universidade Federal do Triângulo Mineiro, Uberaba, MG, Brazil
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Zhang Y, Chen G, Zhou S, He L, Ayanniyi OO, Xu Q, Yue Z, Yang C. APDDD: Animal parasitic diseases and drugs database. Comp Immunol Microbiol Infect Dis 2024; 104:102096. [PMID: 38000324 DOI: 10.1016/j.cimid.2023.102096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2023] [Revised: 10/26/2023] [Accepted: 11/13/2023] [Indexed: 11/26/2023]
Abstract
Animal parasitic diseases not only have an economic impact, but also have serious social and public health impacts. Although antiparasitic drugs can treat these diseases, it seems difficult for users to comprehensively utilize the information, due to incomplete and difficult data collection. Thus, there is an urgent need to establish a comprehensive database, that includes parasitic diseases and related drugs. In this paper, we develop a knowledge database dedicated to collecting and analyzing animal parasitic diseases and related drugs, named Animal Parasitic Diseases and Drugs Database (APDDD). The current version of APDDD includes animal parasitic disease data of 8 major parasite classifications that cause common parasitic diseases and 96 subclass samples mined from many literature and authoritative books, as well as 182 antiparasitic drugs. Furthermore, we utilized APDDD data to add a knowledge graph representing the relationships between parasitic diseases, drugs, and the targeted gene of drugs acting on parasites. We hope that APDDD will become a good database for animal parasitic diseases and antiparasitic drugs research and that users can gain a more intuitive understanding of the relationships between parasitic diseases, drugs, and targeted genes through the knowledge graph.
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Affiliation(s)
- Yilei Zhang
- College of Animal Science and Technology, School of Information and Computer, Anhui Agricultural University, Hefei, Anhui Province 230036, China
| | - Guojun Chen
- College of Animal Science and Technology, School of Information and Computer, Anhui Agricultural University, Hefei, Anhui Province 230036, China
| | - Siyi Zhou
- College of Animal Science and Technology, School of Information and Computer, Anhui Agricultural University, Hefei, Anhui Province 230036, China
| | - Lingru He
- College of Animal Science and Technology, School of Information and Computer, Anhui Agricultural University, Hefei, Anhui Province 230036, China
| | - Olalekan Opeyemi Ayanniyi
- College of Animal Science and Technology, School of Information and Computer, Anhui Agricultural University, Hefei, Anhui Province 230036, China
| | - Qianming Xu
- College of Animal Science and Technology, School of Information and Computer, Anhui Agricultural University, Hefei, Anhui Province 230036, China
| | - Zhenyu Yue
- College of Animal Science and Technology, School of Information and Computer, Anhui Agricultural University, Hefei, Anhui Province 230036, China.
| | - Congshan Yang
- College of Animal Science and Technology, School of Information and Computer, Anhui Agricultural University, Hefei, Anhui Province 230036, China; Anhui Province Key Laboratory of Veterinary Pathobiology and Disease Control, College of Animal Science and Technology, Anhui Agricultural University, Hefei 230036, China.
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Sulik M, Antoszczak M, Huczyński A, Steverding D. Antiparasitic activity of ivermectin: Four decades of research into a "wonder drug". Eur J Med Chem 2023; 261:115838. [PMID: 37793327 DOI: 10.1016/j.ejmech.2023.115838] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Revised: 09/17/2023] [Accepted: 09/26/2023] [Indexed: 10/06/2023]
Abstract
Parasitic diseases still pose a serious threat to human and animal health, particularly for millions of people and their livelihoods in low-income countries. Therefore, research into the development of effective antiparasitic drugs remains a priority. Ivermectin, a sixteen-membered macrocyclic lactone, exhibits a broad spectrum of antiparasitic activities, which, combined with its low toxicity, has allowed the drug to be widely used in the treatment of parasitic diseases affecting humans and animals. In addition to its licensed use against river blindness and strongyloidiasis in humans, and against roundworm and arthropod infestations in animals, ivermectin is also used "off-label" to treat many other worm-related parasitic diseases, particularly in domestic animals. In addition, several experimental studies indicate that ivermectin displays also potent activity against viruses, bacteria, protozoans, trematodes, and insects. This review article summarizes the last 40 years of research on the antiparasitic effects of ivermectin, and the use of the drug in the treatment of parasitic diseases in humans and animals.
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Affiliation(s)
- Michał Sulik
- Department of Medical Chemistry, Faculty of Chemistry, Adam Mickiewicz University, Uniwersytetu Poznańskiego 8, 61‒614, Poznań, Poland
| | - Michał Antoszczak
- Department of Medical Chemistry, Faculty of Chemistry, Adam Mickiewicz University, Uniwersytetu Poznańskiego 8, 61‒614, Poznań, Poland
| | - Adam Huczyński
- Department of Medical Chemistry, Faculty of Chemistry, Adam Mickiewicz University, Uniwersytetu Poznańskiego 8, 61‒614, Poznań, Poland.
| | - Dietmar Steverding
- Bob Champion Research & Education Building, Norwich Medical School, University of East Anglia, Norwich, UK
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Zhang Y, Ding X, Dai Y. [Anticancer effect of parasites and its underlying mechanisms: a review]. Zhongguo Xue Xi Chong Bing Fang Zhi Za Zhi 2023; 36:91-97. [PMID: 38604692 DOI: 10.16250/j.32.1374.2023074] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 04/13/2024]
Abstract
Both parasitic diseases and cancers are disorders that seriously threaten human health. A strong correlation has been recently found between parasitic infections and cancers, and multiple species of parasites and their derived products have shown effective to suppress cancer development, progression and metastasis. Therefore, deciphering the interaction among parasites, cancers and hosts not only provides new insights into the development of cancer therapy, but also provides the basis for screening of parasites-derived active anticancer molecules. This review summarizes the latest advances in the anticancer activity of parasites and underlying mechanisms.
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Affiliation(s)
- Y Zhang
- School of Public Health, Nanjing Medical University, Nanjing, Jiangsu 211166, China
- National Health Commission Key Laboratory of Parasitic Disease Prevention and Control, Jiangsu Provincial Key Laboratory on Parasite and Vector Control Technology, Jiangsu Provincial Medical Key Laboratory, Jiangsu Institute of Parasitic Diseases, Wuxi, Jiangsu 214064, China
| | - X Ding
- National Health Commission Key Laboratory of Parasitic Disease Prevention and Control, Jiangsu Provincial Key Laboratory on Parasite and Vector Control Technology, Jiangsu Provincial Medical Key Laboratory, Jiangsu Institute of Parasitic Diseases, Wuxi, Jiangsu 214064, China
| | - Y Dai
- School of Public Health, Nanjing Medical University, Nanjing, Jiangsu 211166, China
- National Health Commission Key Laboratory of Parasitic Disease Prevention and Control, Jiangsu Provincial Key Laboratory on Parasite and Vector Control Technology, Jiangsu Provincial Medical Key Laboratory, Jiangsu Institute of Parasitic Diseases, Wuxi, Jiangsu 214064, China
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Ribeiro R, Costa L, Pinto E, Sousa E, Fernandes C. Therapeutic Potential of Marine-Derived Cyclic Peptides as Antiparasitic Agents. Mar Drugs 2023; 21:609. [PMID: 38132930 PMCID: PMC10745025 DOI: 10.3390/md21120609] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2023] [Revised: 11/18/2023] [Accepted: 11/23/2023] [Indexed: 12/23/2023] Open
Abstract
Parasitic diseases still compromise human health. Some of the currently available therapeutic drugs have limitations considering their adverse effects, questionable efficacy, and long treatment, which have encouraged drug resistance. There is an urgent need to find new, safe, effective, and affordable antiparasitic drugs. Marine-derived cyclic peptides have been increasingly screened as candidates for developing new drugs. Therefore, in this review, a systematic analysis of the scientific literature was performed and 25 marine-derived cyclic peptides with antiparasitic activity (1-25) were found. Antimalarial activity is the most reported (51%), followed by antileishmanial (27%) and antitrypanosomal (20%) activities. Some compounds showed promising antiparasitic activity at the nM scale, being active against various parasites. The mechanisms of action and targets for some of the compounds have been investigated, revealing different strategies against parasites.
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Affiliation(s)
- Ricardo Ribeiro
- Laboratório de Química Orgânica e Farmacêutica, Departamento de Ciências Químicas, Faculdade de Farmácia, Universidade do Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal; (R.R.); (L.C.); (E.S.)
- Interdisciplinary Centre of Marine and Environmental Research (CIIMAR), Edifício do Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos s/n, 4050-208 Matosinhos, Portugal;
| | - Lia Costa
- Laboratório de Química Orgânica e Farmacêutica, Departamento de Ciências Químicas, Faculdade de Farmácia, Universidade do Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal; (R.R.); (L.C.); (E.S.)
| | - Eugénia Pinto
- Interdisciplinary Centre of Marine and Environmental Research (CIIMAR), Edifício do Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos s/n, 4050-208 Matosinhos, Portugal;
- Laboratório de Microbiologia, Departamento de Ciências Biológicas, Faculdade de Farmácia, Universidade do Porto, Rua de Jorge Viterbo Ferreira 228, 4050-313 Porto, Portugal
| | - Emília Sousa
- Laboratório de Química Orgânica e Farmacêutica, Departamento de Ciências Químicas, Faculdade de Farmácia, Universidade do Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal; (R.R.); (L.C.); (E.S.)
- Interdisciplinary Centre of Marine and Environmental Research (CIIMAR), Edifício do Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos s/n, 4050-208 Matosinhos, Portugal;
| | - Carla Fernandes
- Laboratório de Química Orgânica e Farmacêutica, Departamento de Ciências Químicas, Faculdade de Farmácia, Universidade do Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal; (R.R.); (L.C.); (E.S.)
- Interdisciplinary Centre of Marine and Environmental Research (CIIMAR), Edifício do Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos s/n, 4050-208 Matosinhos, Portugal;
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Meira C, Silva J, Quadros H, Silva L, Barreto B, Rocha V, Bomfim L, Santos E, Soares M. Galectins in Protozoan Parasitic Diseases: Potential Applications in Diagnostics and Therapeutics. Cells 2023; 12:2671. [PMID: 38067100 PMCID: PMC10705098 DOI: 10.3390/cells12232671] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2023] [Revised: 11/04/2023] [Accepted: 11/06/2023] [Indexed: 12/18/2023] Open
Abstract
Neglected tropical diseases (NTDs) constitute a group of diseases that generally develop in tropical or subtropical climatic conditions and are related to poverty. Within the spectrum of NTDs, diseases caused by protozoa such as malaria, Chagas disease, and leishmaniasis exhibit elevated mortality rates, thereby constituting a substantial public health concern. Beyond their protozoan etiology, these NTDs share other similarities, such as the challenge of control and the lack of affordable, safe, and effective drugs. In view of the above, the need to explore novel diagnostic predictors and therapeutic targets for the treatment of these parasitic diseases is evident. In this context, galectins are attractive because they are a set of lectins bound to β-galactosides that play key roles in a variety of cellular processes, including host-parasite interaction such as adhesion and entry of parasites into the host cells, and participate in antiparasitic immunity in either a stimulatory or inhibitory manner, especially the galectins-1, -2, -3, and -9. These functions bestow upon galectins significant therapeutic prospects in the context of managing and diagnosing NTDs. Thus, the present review aims to elucidate the potential role of galectins in the diagnosis and treatment of malaria, leishmaniasis, and Chagas disease.
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Affiliation(s)
- Cássio Meira
- Gonçalo Moniz Institute, Oswaldo Cruz Foundation (FIOCRUZ), Salvador 21040-900, Bahia, Brazil; (J.S.); (H.Q.); (L.S.); (B.B.); (V.R.); (L.B.)
- SENAI Institute of Innovation in Health Advanced Systems (ISI SAS), University Center SENAI/CIMATEC, Salvador 41650-010, Bahia, Brazil;
| | - Jaqueline Silva
- Gonçalo Moniz Institute, Oswaldo Cruz Foundation (FIOCRUZ), Salvador 21040-900, Bahia, Brazil; (J.S.); (H.Q.); (L.S.); (B.B.); (V.R.); (L.B.)
| | - Helenita Quadros
- Gonçalo Moniz Institute, Oswaldo Cruz Foundation (FIOCRUZ), Salvador 21040-900, Bahia, Brazil; (J.S.); (H.Q.); (L.S.); (B.B.); (V.R.); (L.B.)
| | - Laís Silva
- Gonçalo Moniz Institute, Oswaldo Cruz Foundation (FIOCRUZ), Salvador 21040-900, Bahia, Brazil; (J.S.); (H.Q.); (L.S.); (B.B.); (V.R.); (L.B.)
| | - Breno Barreto
- Gonçalo Moniz Institute, Oswaldo Cruz Foundation (FIOCRUZ), Salvador 21040-900, Bahia, Brazil; (J.S.); (H.Q.); (L.S.); (B.B.); (V.R.); (L.B.)
- SENAI Institute of Innovation in Health Advanced Systems (ISI SAS), University Center SENAI/CIMATEC, Salvador 41650-010, Bahia, Brazil;
- Institute of Health Sciences, Federal University of Bahia (UFBA), Salvador 40170-110, Bahia, Brazil
| | - Vinícius Rocha
- Gonçalo Moniz Institute, Oswaldo Cruz Foundation (FIOCRUZ), Salvador 21040-900, Bahia, Brazil; (J.S.); (H.Q.); (L.S.); (B.B.); (V.R.); (L.B.)
- SENAI Institute of Innovation in Health Advanced Systems (ISI SAS), University Center SENAI/CIMATEC, Salvador 41650-010, Bahia, Brazil;
| | - Larissa Bomfim
- Gonçalo Moniz Institute, Oswaldo Cruz Foundation (FIOCRUZ), Salvador 21040-900, Bahia, Brazil; (J.S.); (H.Q.); (L.S.); (B.B.); (V.R.); (L.B.)
| | - Emanuelle Santos
- SENAI Institute of Innovation in Health Advanced Systems (ISI SAS), University Center SENAI/CIMATEC, Salvador 41650-010, Bahia, Brazil;
| | - Milena Soares
- Gonçalo Moniz Institute, Oswaldo Cruz Foundation (FIOCRUZ), Salvador 21040-900, Bahia, Brazil; (J.S.); (H.Q.); (L.S.); (B.B.); (V.R.); (L.B.)
- SENAI Institute of Innovation in Health Advanced Systems (ISI SAS), University Center SENAI/CIMATEC, Salvador 41650-010, Bahia, Brazil;
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Kridin K, Zirpel H, Mruwat N, Ludwig RJ, Thaci D. Evaluating the risk of infections under interleukin 23 and interleukin 17 inhibitors relative to tumour necrosis factor inhibitors - A population-based study. J Eur Acad Dermatol Venereol 2023; 37:2319-2326. [PMID: 37466275 DOI: 10.1111/jdv.19328] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2023] [Accepted: 06/26/2023] [Indexed: 07/20/2023]
Abstract
BACKGROUND The risk of infections among patients with psoriasis undergoing interleukin (IL)-23 inhibitors (IL-23i) and IL-17 inhibitors (IL-17i) is yet to be exhaustively determined. OBJECTIVE To assess the risk of infectious complications in patients with psoriasis managed by IL-23i and IL-17i with tumour necrosis factor inhibitors (TNFi) as a comparator. METHODS A global cohort study comprised two distinct analyses comparing patients with psoriasis under different therapeutic modalities; (i) new users of IL-23i (n = 5272) versus TNFi (n = 5272) and (ii) new users of IL-17i (n = 15,160) versus TNFi (n = 15,160). Study groups were compared regarding the risk of 26 different infections. Propensity score matching was conducted to optimize between-group comparability. RESULTS Patients under IL-23i had a lower risk of otitis media (HR, 0.66; 95% CI, 0.44-0.97), encephalitis (HR, 0.18; 95% CI, 0.04-0.78), herpes zoster (HZ; HR, 0.58; 95% CI, 0.41-0.82), hepatitis B virus (HBV) reactivation (HR, 0.24; 95% CI, 0.12-0.47), cytomegalovirus (HR, 0.25; 95% CI, 0.07-0.86), influenza (HR, 0.52; 95% CI, 0.38-0.71) and parasitic diseases (HR, 0.78; 95% CI, 0.64-0.95). IL-17i was associated with a decreased risk of pneumonia (HR, 0.76; 95% CI, 0.68-0.85), septicaemia (HR, 0.84; 95% CI, 0.72-0.97), upper respiratory tract infection (HR, 0.84; 95% CI, 0.77-0.92), HZ (HR, 0.79; 95% CI, 0.67-0.92), HBV (HR, 0.59; 95% CI, 0.46-0.76) and hepatitis C virus (HR, 0.71; 95% CI, 0.57-0.88) reactivation, cytomegalovirus (HR, 0.58; 95% CI, 0.36-0.93), Epstein-Barr virus (HR, 0.38; 95% CI, 0.19-0.75), influenza (HR, 0.70; 95% CI, 0.61-0.81) and parasitic diseases (HR, 0.80; 95% CI, 0.72-0.88). CONCLUSION Compared with TNFi, IL-23i and IL-17i are associated with decreased risk of several infectious diseases. These agents might be preferred in patients with susceptibility to infections.
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Affiliation(s)
- Khalaf Kridin
- Lűbeck Institute of Experimental Dermatology, University of Lübeck, Lübeck, Germany
- Unit of Dermatology and Skin Research Laboratory, Galilee Medical Center, Nahariya, Israel
- Azrieli Faculty of Medicine, Bar-Ilan University, Safed, Israel
| | - Henner Zirpel
- Comprehensive Center for Inflammation Medicine, University-Hospital Schleswig-Holstein, Lübeck, Germany
| | - Noor Mruwat
- Unit of Dermatology and Skin Research Laboratory, Galilee Medical Center, Nahariya, Israel
| | - Ralf J Ludwig
- Lűbeck Institute of Experimental Dermatology, University of Lübeck, Lübeck, Germany
- Department of Dermatology, University of Lübeck, Lübeck, Germany
| | - Diamant Thaci
- Comprehensive Center for Inflammation Medicine, University-Hospital Schleswig-Holstein, Lübeck, Germany
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Abstract
Despite advances in modern human and veterinary medicine, gastrointestinal (GI) parasitic infections remain a significant health issue worldwide, mainly in developing countries. Increasing evidence of the multi-drug resistance of these parasites and the side effects of currently available synthetic drugs have led to increased research on alternative medicines to treat parasitic infections. The exploration of potential botanical antiparasitics, which are inexpensive and abundant, may be a promising alternative in this context. This study summarizes the in vitro/in vivo antiparasitic efficacy of different medicinal plants and their components against GI parasites. Published literature from 1990-2020 was retrieved from Google Scholar, Web of Science, PubMed and Scopus. A total of 68 plant species belonging to 32 families have been evaluated as antiparasitic agents against GI parasites worldwide. The majority of studies (70%) were conducted in vitro. Most plants were from the Fabaceae family (53%, n = 18). Methanol (37%, n = 35) was the most used solvent. Leaf (22%, n = 16) was the most used plant part, followed by seed and rhizome (each 12%, n = 9). These studies suggest that herbal medicines hold a great scope for new drug discoveries against parasitic diseases and that the derivatives of these plants are useful structures for drug synthesis and bioactivity optimization.
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Affiliation(s)
- Sandamalie Ranasinghe
- Centre for Biosecurity and One Health, Harry Butler Institute, Murdoch University, Perth, Western Australia, Australia
| | - Anthony Armson
- Exercise Science and Chiropractic, College of Science, Health, Engineering and Education, Murdoch University, Perth, Western Australia, Australia
| | - Alan J. Lymbery
- Centre for Sustainable Aquatic Ecosystems, Harry Butler Institute, Murdoch University, Perth, Western Australia, Australia
| | - Alireza Zahedi
- Centre for Biosecurity and One Health, Harry Butler Institute, Murdoch University, Perth, Western Australia, Australia
| | - Amanda Ash
- Centre for Biosecurity and One Health, Harry Butler Institute, Murdoch University, Perth, Western Australia, Australia
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Burgess V, Maya JD. Statin and aspirin use in parasitic infections as a potential therapeutic strategy: A narrative review. Rev Argent Microbiol 2023; 55:278-288. [PMID: 37019801 DOI: 10.1016/j.ram.2023.01.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Revised: 12/13/2022] [Accepted: 01/26/2023] [Indexed: 04/05/2023] Open
Abstract
Infections, including zoonoses, constitute a threat to human health due to the spread of resistant pathogens. These diseases generate an inflammatory response controlled by a resolving mechanism involving specialized membrane lipid-derived molecules called lipoxins, resolvins, maresins, and protectins. The production of some of these molecules can be triggered by aspirin or statins. Thus, it is proposed that modulation of the host response could be a useful therapeutic strategy, contributing to the management of resistance to antiparasitic agents or preventing drift to chronic, host-damaging courses. Therefore, the present work presents the state of the art on the use of statins or aspirin for the experimental management of parasitic infections such as Chagas disease, leishmaniasis, toxoplasmosis or malaria. The methodology used was a narrative review covering original articles from the last seven years, 38 of which met the inclusion criteria. Based on the publications consulted, modulation of the resolution of inflammation using statins may be feasible as an adjuvant in the therapy of parasitic diseases. However, there was no strong experimental evidence on the use of aspirin; therefore, further studies are needed to evaluate its role inflammation resolution process in infectious diseases.
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Affiliation(s)
- Valentina Burgess
- Escuela de Medicina, Facultad de Medicina, Universidad de Chile, Independencia, Santiago, Chile
| | - Juan D Maya
- Programa de Farmacología Molecular y Clínica, Instituto de Ciencias Biomédicas, Facultad de Medicina, Universidad de Chile, Independencia, Santiago, Chile.
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11
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Takaki R, Takiyama Y. [Other Central Nervous System Infections(Including Fungal Infection, Tuberculosis, and Parasitic Infection)]. No Shinkei Geka 2022; 50:952-960. [PMID: 36128810 DOI: 10.11477/mf.1436204654] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
This review describes cryptococcal meningoencephalitis, tuberculous meningitis, neurosyphilis, and toxoplasma encephalitis. Central nervous system infections are neurological emergencies associated with mortality or other outcomes. Therefore, early diagnosis and treatment are critical. Fungal or gondii infections are rare and affect compromised hosts who are HIV positive, have diabetes, or take immunosuppressive or anticancer drugs. Cryptococcal antigens in the serum and cerebrospinal fluid are useful for the diagnosis of cryptococcal meningoencephalitis. RPR and TPHA tests are useful for the diagnosis of neurosyphilis. Cryptococcal meningoencephalitis and tuberculous meningitis often develop into hydrocephalus, making VP shunt necessary. Antifungal drugs for cryptococcal meningitis are limited by the blood-brain barrier, making a full recovery difficult; in such situations, intraventricular antifungal treatment is required.
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12
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Singh AP, Sharma A. Structural Insights and Pharmaceutical Relevance of Plumbagin in Parasitic Disorders: A Comprehensive Review. Recent Adv Antiinfect Drug Discov 2022; 17:187-198. [PMID: 36065920 DOI: 10.2174/2772434417666220905121531] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Revised: 06/15/2022] [Accepted: 06/23/2022] [Indexed: 06/15/2023]
Abstract
Recently, natural products have been became the center of attraction for the scientific society and exploration of their biologically abilities is proceeding continuously. In search for novel antiparasitic agents with an objective of protecting humans from parasitic infections, the present work was focused on naphthoquinones possessing antiparasitic activity. Among naphthoquinones, plumbagin is one of the secondary metabolites exhibiting diverse biological properties such as antibacterial, antimalarial, antiinflammatory, insecticidal and antiparasitic. Plumbagin is reported to have antischistosomiasis, anti-haemonchosis, anti-fascioliasis, antiotoacariasis, anti-leishmaniasis, antimalaria, antiallergic and anthelmintic activities. Besides, various methods of extraction of plumbagin from different methods, their effectiveness against different parasites, and the structure-activity relationship reported by different researchers. This work highlight on recent advancements in the phytochemistry of plumbagin, studies associated with various biological activities. The structure-activity relationship studies have also been summarized. To conclude, present review could be beneficial for the scientific community to get better insight into medicinal research of plumbagin and may provide a new horizon for the rational design of plumbagin based compounds.
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Affiliation(s)
| | - Alok Sharma
- ISF College of Pharmacy, Moga, 142001, Punjab, India
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Lee L, Samardzic K, Wallach M, Frumkin LR, Mochly-Rosen D. Immunoglobulin Y for Potential Diagnostic and Therapeutic Applications in Infectious Diseases. Front Immunol 2021; 12:696003. [PMID: 34177963 PMCID: PMC8220206 DOI: 10.3389/fimmu.2021.696003] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Accepted: 05/26/2021] [Indexed: 01/14/2023] Open
Abstract
Antiviral, antibacterial, and antiparasitic drugs and vaccines are essential to maintaining the health of humans and animals. Yet, their production can be slow and expensive, and efficacy lost once pathogens mount resistance. Chicken immunoglobulin Y (IgY) is a highly conserved homolog of human immunoglobulin G (IgG) that has shown benefits and a favorable safety profile, primarily in animal models of human infectious diseases. IgY is fast-acting, easy to produce, and low cost. IgY antibodies can readily be generated in large quantities with minimal environmental harm or infrastructure investment by using egg-laying hens. We summarize a variety of IgY uses, focusing on their potential for the detection, prevention, and treatment of human and animal infections.
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Affiliation(s)
- Lucia Lee
- Department of Chemical and Systems Biology, Stanford University School of Medicine, Stanford, CA, United States
| | - Kate Samardzic
- Department of Chemical and Systems Biology, Stanford University School of Medicine, Stanford, CA, United States
| | - Michael Wallach
- School of Life Sciences, University of Technology, Sydney, NSW, Australia
| | | | - Daria Mochly-Rosen
- Department of Chemical and Systems Biology, Stanford University School of Medicine, Stanford, CA, United States
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Abstract
BACKGROUND There are relatively few scientific works on the use of homeopathy to manage plant pathogens, particularly nematodes. A handful of studies focused on Meloidogyne spp. parasitizing vegetables have brought contradictory results on nematode control and enhancement of plant tolerance to parasitism. OBJECTIVE Our goal was to assess the effect of Cina-a well-known anti-nematode ingredient-on Meloidogyne enterolobii parasitizing lettuce. METHODS Cina was applied daily on nematode-inoculated plants, from the seedling stage until harvest. We tested an evenly spaced range of Hahnemannian concentrations (c), which were applied though irrigation with a constant dose of the ingredient. Several absolute and relative controls were employed to allow the assessment of the effect of Cina on nematode reproduction and lettuce growth. RESULTS Cina affected growth of non-parasitized plants, both positively and negatively; this effect was modulated by the c applied and the thermal stress suffered by the plants in one of the assays. The effect of Cina on the growth of nematode-parasitized plants was neutral or negative. Cina reduced nematode reproduction by 25-36%. CONCLUSION Based on the moderate negative effect of Cina on M. enterolobii reproduction, it seems this ingredient may be useful as a complementary strategy for Meloidogyne control. But Cina did not enhance the tolerance of lettuce to Meloidogyne spp.
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Affiliation(s)
- Thais Moraes Ferreira
- Department of Entomology and Plant Pathology, Universidade Estadual do Norte Fluminense Darcy Ribeiro, Campos dos Goytacazes, Rio de Janeiro, Brazil
| | - Mariana Zandomênico Mangeiro
- Department of Entomology and Plant Pathology, Universidade Estadual do Norte Fluminense Darcy Ribeiro, Campos dos Goytacazes, Rio de Janeiro, Brazil
| | - Alexandre Macedo Almeida
- Department of Entomology and Plant Pathology, Universidade Estadual do Norte Fluminense Darcy Ribeiro, Campos dos Goytacazes, Rio de Janeiro, Brazil
| | - Ricardo Moreira Souza
- Department of Entomology and Plant Pathology, Universidade Estadual do Norte Fluminense Darcy Ribeiro, Campos dos Goytacazes, Rio de Janeiro, Brazil
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15
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Liu H, Fan H, Huang X, Jiao Y. The clinical characteristics and outcomes of patients with fever of unknown origin caused by parasitic infection. Medicine (Baltimore) 2021; 100:e25538. [PMID: 33879698 PMCID: PMC8078278 DOI: 10.1097/md.0000000000025538] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/22/2020] [Accepted: 03/26/2021] [Indexed: 11/25/2022] Open
Abstract
There are over 200 causes of fever of unknown origin (FUO), and although parasitic infection is an increasingly uncommon cause, a definitive diagnosis remains important to ensure rapid treatment and to prevent adverse sequelae through delay. Here, we studied the clinical features and outcomes of patients admitted with FUO and diagnosed with parasitic infection to improve our understanding of the features of parasitic FUO.Medical records of patients admitted to Peking Union Medical College Hospital between 2013 and 2019 with FUO and diagnosed with parasitic infection were reviewed. The clinical features and outcomes of patients for whom follow-up data were available were summarized.Six patients were admitted with FUO and diagnosed with parasitic infections (6/1013; 0.59%). Patients were more commonly middle-aged men and had a relatively long disease course. Most suffered from hyperpyrexia and other non-specific symptoms. Routine examinations were non-specific, and some patients had positive tumor markers, antinuclear antibodies, or positron emission tomography/computed tomography results. Diagnoses were confirmed by bone marrow smears, serum antibody testing, or feces examination. All 6 cases received anthelmintic treatments and recovered well.Parasitic infections must be screened for and actively excluded in FUO patients so that targeted therapy can be rapidly administered to ensure optimal outcomes.
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Affiliation(s)
| | | | - Xiaoming Huang
- Department of General Internal Medicine, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Yang Jiao
- Department of General Internal Medicine, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
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16
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Taylor DM, Haney RS, Luckhart S. Aquatic Exposure to Abscisic Acid Transstadially Enhances Anopheles stephensi Resistance to Malaria Parasite Infection. Genes (Basel) 2020; 11:E1393. [PMID: 33255333 PMCID: PMC7761407 DOI: 10.3390/genes11121393] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2020] [Revised: 11/21/2020] [Accepted: 11/22/2020] [Indexed: 12/13/2022] Open
Abstract
The ancient stress signaling molecule abscisic acid (ABA) is ubiquitous in animals and plants but is perhaps most well-known from its early discovery as a plant hormone. ABA can be released into water by plants and is found in nectar, but is also present in mammalian blood, three key contexts for mosquito biology. We previously established that addition of ABA to Anopheles stephensi larval rearing water altered immature development and life history traits of females derived from treated larvae, while addition of ABA to an infected bloodmeal increased resistance of adult female A. stephensi to human malaria parasite infection. Here we sought to determine whether larval treatment with ABA could similarly impact resistance to parasite infection in females derived from treated larvae and, if so, whether resistance could be extended to another parasite species. We examined nutrient levels and gene expression to demonstrate that ABA can transstadially alter resistance to a rodent malaria parasite with hallmarks of previously observed mechanisms of resistance following provision of ABA in blood to A. stephensi.
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Affiliation(s)
- Dean M. Taylor
- Department of Entomology, Plant Pathology and Nematology, University of Idaho, Moscow, ID 83844, USA; (D.M.T.); (R.S.H.)
| | - Reagan S. Haney
- Department of Entomology, Plant Pathology and Nematology, University of Idaho, Moscow, ID 83844, USA; (D.M.T.); (R.S.H.)
| | - Shirley Luckhart
- Department of Entomology, Plant Pathology and Nematology, University of Idaho, Moscow, ID 83844, USA; (D.M.T.); (R.S.H.)
- Department of Biological Sciences, University of Idaho, Moscow, ID 83844, USA
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17
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Chen J, Wu H, Zhang W, Mu W. Ribose-5-phosphate isomerases: characteristics, structural features, and applications. Appl Microbiol Biotechnol 2020; 104:6429-6441. [PMID: 32533303 DOI: 10.1007/s00253-020-10735-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2020] [Revised: 06/02/2020] [Accepted: 06/07/2020] [Indexed: 01/21/2023]
Abstract
Ribose-5-phosphate isomerase (Rpi, EC 5.3.1.6) is widespread in microorganisms, animals, and plants. It has a pivotal role in the pentose phosphate pathway and responsible for catalyzing the isomerization between D-ribulose 5-phosphate and D-ribose 5-phosphate. In recent years, Rpi has received considerable attention as a multipurpose biocatalyst for production of rare sugars, including D-allose, L-rhamnulose, L-lyxose, and L-tagatose. Besides, it has been thought of as a potential drug target in the treatment of trypanosomatid-caused diseases such as Chagas' disease, leishmaniasis, and human African trypanosomiasis. Despite increased research activities, up to now, no systematic review of Rpi has been published. To fill this gap, this paper provides detailed information about the enzymatic properties of various Rpis. Furthermore, structural features, catalytic mechanism, and molecular modifications of Rpis are summarized based on extensive crystal structure research. Additionally, the applications of Rpi in rare sugar production and the role of Rpi in trypanocidal drug design are reviewed. Key points • Fundamental properties of various ribose-5-phosphate isomerases (Rpis). • Differences in crystal structure and catalytic mechanism between RpiA and RpiB. • Application of Rpi as a rare sugar producer and a potential drug target.
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Affiliation(s)
- Jiajun Chen
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, 214122, Jiangsu, China
| | - Hao Wu
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, 214122, Jiangsu, China
| | - Wenli Zhang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, 214122, Jiangsu, China.
- International Joint Laboratory on Food Safety, Jiangnan University, Wuxi, 214122, Jiangsu, China.
| | - Wanmeng Mu
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, 214122, Jiangsu, China
- International Joint Laboratory on Food Safety, Jiangnan University, Wuxi, 214122, Jiangsu, China
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18
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Ryan N, Anderson K, Volpedo G, Varikuti S, Satoskar M, Satoskar S, Oghumu S. The IL-33/ST2 Axis in Immune Responses Against Parasitic Disease: Potential Therapeutic Applications. Front Cell Infect Microbiol 2020; 10:153. [PMID: 32363166 PMCID: PMC7180392 DOI: 10.3389/fcimb.2020.00153] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2020] [Accepted: 03/23/2020] [Indexed: 12/15/2022] Open
Abstract
Parasitic infections pose a wide and varying threat globally, impacting over 25% of the global population with many more at risk of infection. These infections are comprised of, but not limited to, toxoplasmosis, malaria, leishmaniasis and any one of a wide variety of helminthic infections. While a great deal is understood about the adaptive immune response to each of these parasites, there remains a need to further elucidate the early innate immune response. Interleukin-33 is being revealed as one of the earliest players in the cytokine milieu responding to parasitic invasion, and as such has been given the name "alarmin." A nuclear cytokine, interleukin-33 is housed primarily within epithelial and fibroblastic tissues and is released upon cellular damage or death. Evidence has shown that interleukin-33 seems to play a crucial role in priming the immune system toward a strong T helper type 2 immune response, necessary in the clearance of some parasites, while disease exacerbating in the context of others. With the possibility of being a double-edged sword, a great deal remains to be seen in how interleukin-33 and its receptor ST2 are involved in the immune response different parasites elicit, and how those parasites may manipulate or evade this host mechanism. In this review article we compile the current cutting-edge research into the interleukin-33 response to toxoplasmosis, malaria, leishmania, and helminthic infection. Furthermore, we provide insight into directions interleukin-33 research may take in the future, potential immunotherapeutic applications of interleukin-33 modulation and how a better clarity of early innate immune system responses involving interleukin-33/ST2 signaling may be applied in development of much needed treatment options against parasitic invaders.
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Affiliation(s)
- Nathan Ryan
- Department of Pathology, The Ohio State University Wexner Medical Center, Columbus, OH, United States
- Division of Anatomy, The Ohio State University Wexner Medical Center, Columbus, OH, United States
| | - Kelvin Anderson
- Department of Pathology, The Ohio State University Wexner Medical Center, Columbus, OH, United States
| | - Greta Volpedo
- Department of Pathology, The Ohio State University Wexner Medical Center, Columbus, OH, United States
- Department of Microbiology, The Ohio State University, Columbus, OH, United States
| | - Sanjay Varikuti
- Department of Pathology, The Ohio State University Wexner Medical Center, Columbus, OH, United States
| | - Monika Satoskar
- Northeast Ohio Medical University, Rootstown, OH, United States
| | - Sanika Satoskar
- Northeast Ohio Medical University, Rootstown, OH, United States
| | - Steve Oghumu
- Department of Pathology, The Ohio State University Wexner Medical Center, Columbus, OH, United States
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Ciavatta ML, Lefranc F, Vieira LM, Kiss R, Carbone M, van Otterlo WAL, Lopanik NB, Waeschenbach A. The Phylum Bryozoa: From Biology to Biomedical Potential. Mar Drugs 2020; 18:E200. [PMID: 32283669 PMCID: PMC7230173 DOI: 10.3390/md18040200] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2020] [Revised: 03/31/2020] [Accepted: 04/06/2020] [Indexed: 01/06/2023] Open
Abstract
Less than one percent of marine natural products characterized since 1963 have been obtained from the phylum Bryozoa which, therefore, still represents a huge reservoir for the discovery of bioactive metabolites with its ~6000 described species. The current review is designed to highlight how bryozoans use sophisticated chemical defenses against their numerous predators and competitors, and which can be harbored for medicinal uses. This review collates all currently available chemoecological data about bryozoans and lists potential applications/benefits for human health. The core of the current review relates to the potential of bryozoan metabolites in human diseases with particular attention to viral, brain, and parasitic diseases. It additionally weighs the pros and cons of total syntheses of some bryozoan metabolites versus the synthesis of non-natural analogues, and explores the hopes put into the development of biotechnological approaches to provide sustainable amounts of bryozoan metabolites without harming the natural environment.
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Affiliation(s)
- Maria Letizia Ciavatta
- Consiglio Nazionale delle Ricerche (CNR), Istituto di Chimica Biomolecolare (ICB), Via Campi Flegrei 34, 80078 Pozzuoli, Italy; (M.L.C.); (M.C.)
| | - Florence Lefranc
- Service de Neurochirurgie, Hôpital Erasme, Université Libre de Bruxelles (ULB), 1070 Brussels, Belgium
| | - Leandro M. Vieira
- Departamento de Zoologia, Centro de Biociências, Universidade Federal de Pernambuco, Recife, PE 50670-901, Brazil;
| | - Robert Kiss
- Retired – formerly at the Fonds National de la Recherche Scientifique (FRS-FNRS), 1000 Brussels, Belgium;
| | - Marianna Carbone
- Consiglio Nazionale delle Ricerche (CNR), Istituto di Chimica Biomolecolare (ICB), Via Campi Flegrei 34, 80078 Pozzuoli, Italy; (M.L.C.); (M.C.)
| | - Willem A. L. van Otterlo
- Department of Chemistry and Polymer Science, University of Stellenbosch, Private Bag X1, Matieland 7602, South Africa;
| | - Nicole B. Lopanik
- School of Earth and Atmospheric Sciences, School of Biological Sciences, Georgia Institute of Technology, Atlanta, GA 30332, USA;
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Abstract
Parasitic diseases have serious health, social, and economic impacts, especially in the tropical regions of the world. Diseases caused by protozoan parasites are responsible for considerable mortality and morbidity, affecting more than 500 million people worldwide. Globally, the burden of protozoan diseases is increasing and is been exacerbated because of a lack of effective medication due to the drug resistance and toxicity of current antiprotozoal agents. These limitations have prompted many researchers to search for new drugs against protozoan parasites. In this review, we have compiled the latest information (2012-2017) on the structures and pharmacological activities of newly developed organic compounds against five major protozoan diseases, giardiasis, leishmaniasis, malaria, trichomoniasis, and trypanosomiasis, with the aim of showing recent advances in the discovery of new antiprotozoal drugs.
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Affiliation(s)
- Seong-Min Lee
- College of Pharmacy, Gachon University, 191 Hambakmoe-ro, Yeonsu-gu, Incheon 21936, Korea.
| | - Min-Sun Kim
- College of Pharmacy, Gachon University, 191 Hambakmoe-ro, Yeonsu-gu, Incheon 21936, Korea.
| | - Faisal Hayat
- College of Pharmacy, Gachon University, 191 Hambakmoe-ro, Yeonsu-gu, Incheon 21936, Korea.
| | - Dongyun Shin
- College of Pharmacy, Gachon University, 191 Hambakmoe-ro, Yeonsu-gu, Incheon 21936, Korea.
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21
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Bocquet L, Sahpaz S, Bonneau N, Beaufay C, Mahieux S, Samaillie J, Roumy V, Jacquin J, Bordage S, Hennebelle T, Chai F, Quetin-Leclercq J, Neut C, Rivière C. Phenolic Compounds from Humulus lupulus as Natural Antimicrobial Products: New Weapons in the Fight against Methicillin Resistant Staphylococcus aureus, Leishmania mexicana and Trypanosoma brucei Strains. Molecules 2019; 24:molecules24061024. [PMID: 30875854 PMCID: PMC6472001 DOI: 10.3390/molecules24061024] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2019] [Revised: 03/09/2019] [Accepted: 03/10/2019] [Indexed: 12/23/2022] Open
Abstract
New anti-infective agents are urgently needed to fight microbial resistance. Methicillin-resistant Staphylococcus aureus (MRSA) strains are particularly responsible for complicated pathologies that are difficult to treat due to their virulence and the formation of persistent biofilms forming a complex protecting shell. Parasitic infections caused by Trypanosoma brucei and Leishmania mexicana are also of global concern, because of the mortality due to the low number of safe and effective treatments. Female inflorescences of hop produce specialized metabolites known for their antimicrobial effects but underexploited to fight against drug-resistant microorganisms. In this study, we assessed the antimicrobial potential of phenolic compounds against MRSA clinical isolates, T. brucei and L. mexicana. By fractionation process, we purified the major prenylated chalcones and acylphloroglucinols, which were quantified by UHPLC-UV in different plant parts, showing their higher content in the active flowers extract. Their potent antibacterial action (MIC < 1 µg/mL for the most active compound) was demonstrated against MRSA strains, through kill curves, post-antibiotic effects, anti-biofilm assays and synergy studies with antibiotics. An antiparasitic activity was also shown for some purified compounds, particularly on T. brucei (IC50 < 1 to 11 µg/mL). Their cytotoxic activity was assessed both on cancer and non-cancer human cell lines.
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Affiliation(s)
- Laetitia Bocquet
- EA 7394-ICV, Charles Viollette Research Institute, SFR Condorcet FR CNRS 3417, Univ. Lille, INRA, ISA-Yncréa, Univ. Artois, University Littoral Côte d'Opale, 3 rue du Professeur Laguesse, 59000 Lille, France.
| | - Sevser Sahpaz
- EA 7394-ICV, Charles Viollette Research Institute, SFR Condorcet FR CNRS 3417, Univ. Lille, INRA, ISA-Yncréa, Univ. Artois, University Littoral Côte d'Opale, 3 rue du Professeur Laguesse, 59000 Lille, France.
| | - Natacha Bonneau
- EA 7394-ICV, Charles Viollette Research Institute, SFR Condorcet FR CNRS 3417, Univ. Lille, INRA, ISA-Yncréa, Univ. Artois, University Littoral Côte d'Opale, 3 rue du Professeur Laguesse, 59000 Lille, France.
| | - Claire Beaufay
- Pharmacognosy Research group, Louvain Drug Research Institute, Université Catholique de Louvain, 1200 Brussels, Belgium.
| | - Séverine Mahieux
- U995-LIRIC, Lille Inflammation Research International Center, University Lille, Inserm, CHU Lille, 59000 Lille, France.
| | - Jennifer Samaillie
- EA 7394-ICV, Charles Viollette Research Institute, SFR Condorcet FR CNRS 3417, Univ. Lille, INRA, ISA-Yncréa, Univ. Artois, University Littoral Côte d'Opale, 3 rue du Professeur Laguesse, 59000 Lille, France.
| | - Vincent Roumy
- EA 7394-ICV, Charles Viollette Research Institute, SFR Condorcet FR CNRS 3417, Univ. Lille, INRA, ISA-Yncréa, Univ. Artois, University Littoral Côte d'Opale, 3 rue du Professeur Laguesse, 59000 Lille, France.
| | - Justine Jacquin
- EA 7394-ICV, Charles Viollette Research Institute, SFR Condorcet FR CNRS 3417, Univ. Lille, INRA, ISA-Yncréa, Univ. Artois, University Littoral Côte d'Opale, 3 rue du Professeur Laguesse, 59000 Lille, France.
| | - Simon Bordage
- EA 7394-ICV, Charles Viollette Research Institute, SFR Condorcet FR CNRS 3417, Univ. Lille, INRA, ISA-Yncréa, Univ. Artois, University Littoral Côte d'Opale, 3 rue du Professeur Laguesse, 59000 Lille, France.
| | - Thierry Hennebelle
- EA 7394-ICV, Charles Viollette Research Institute, SFR Condorcet FR CNRS 3417, Univ. Lille, INRA, ISA-Yncréa, Univ. Artois, University Littoral Côte d'Opale, 3 rue du Professeur Laguesse, 59000 Lille, France.
| | - Feng Chai
- U1008-Controlled Drug Delivery Systems and Biomaterials, University Lille, Inserm, CHU Lille, 59000 Lille, France.
| | - Joëlle Quetin-Leclercq
- Pharmacognosy Research group, Louvain Drug Research Institute, Université Catholique de Louvain, 1200 Brussels, Belgium.
| | - Christel Neut
- U995-LIRIC, Lille Inflammation Research International Center, University Lille, Inserm, CHU Lille, 59000 Lille, France.
| | - Céline Rivière
- EA 7394-ICV, Charles Viollette Research Institute, SFR Condorcet FR CNRS 3417, Univ. Lille, INRA, ISA-Yncréa, Univ. Artois, University Littoral Côte d'Opale, 3 rue du Professeur Laguesse, 59000 Lille, France.
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McKittrick ND, Malhotra IJ, Vu DM, Boothroyd DB, Lee J, Krystosik AR, Mutuku FM, King CH, LaBeaud AD. Parasitic infections during pregnancy need not affect infant antibody responses to early vaccination against Streptococcus pneumoniae, diphtheria, or Haemophilus influenzae type B. PLoS Negl Trop Dis 2019; 13:e0007172. [PMID: 30818339 PMCID: PMC6413956 DOI: 10.1371/journal.pntd.0007172] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2018] [Revised: 03/12/2019] [Accepted: 01/18/2019] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND Globally, vaccine-preventable diseases remain a significant cause of early childhood mortality despite concerted efforts to improve vaccine coverage. One reason for impaired protection may be the influence of prenatal exposure to parasitic antigens on the developing immune system. Prior research had shown a decrease in infant vaccine response after in utero parasite exposure among a maternal cohort without aggressive preventive treatment. This study investigated the effect of maternal parasitic infections on infant vaccination in a more recent setting of active anti-parasitic therapy. METHODOLOGY/PRINCIPAL FINDINGS From 2013-2015, 576 Kenyan women were tested in pregnancy for malaria, soil-transmitted helminths, filaria, and S. haematobium, with both acute and prophylactic antiparasitic therapies given. After birth, 567 infants received 10-valent S. pneumoniae conjugate vaccine and pentavalent vaccine for hepatitis B, pertussis, tetanus, H. influenzae type B (Hib) and C. diphtheriae toxoid (Dp-t) at 6, 10, and 14 weeks. Infant serum samples from birth, 10 and 14 weeks, and every six months until age three years, were analyzed using a multiplex bead assay to quantify IgG for Hib, Dp-t, and the ten pneumococcal serotypes. Antenatal parasitic prevalence was high; 461 women (80%) had at least one and 252 (43.6%) had two or more infections during their pregnancy, with the most common being malaria (44.6%), S. haematobium (43.9%), and hookworm (29.2%). Mixed models comparing influence of infection on antibody concentration revealed no effect of prenatal infection status for most vaccine outcomes. Prevalences of protective antibody concentrations after vaccination were similar among the prenatal exposure groups. CONCLUSIONS/SIGNIFICANCE These findings are in contrast with results from our prior cohort study performed when preventive anti-parasite treatment was less frequently given. The results suggest that the treatment of maternal infections in pregnancy may be able to moderate the previously observed effect of antenatal maternal infections on infant vaccine responses.
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Affiliation(s)
- Noah D. McKittrick
- Division of Infectious Diseases, Department of Medicine, Stanford University School of Medicine, Stanford, California, United States of America
| | - Indu J. Malhotra
- Center for Global Health and Diseases, Case Western Reserve University School of Medicine, Cleveland, Ohio, United States of America
| | - David M. Vu
- Division of Infectious Diseases, Department of Pediatrics, Lucille Packard Children’s Hospital at Stanford School of Medicine, Stanford, California, United States of America
| | - Derek B. Boothroyd
- Quantitative Sciences Unit, Department of Medicine, Stanford University School of Medicine, Stanford, California, United States of America
| | - Justin Lee
- Quantitative Sciences Unit, Department of Medicine, Stanford University School of Medicine, Stanford, California, United States of America
| | - Amy R. Krystosik
- Division of Infectious Diseases, Department of Pediatrics, Lucille Packard Children’s Hospital at Stanford School of Medicine, Stanford, California, United States of America
| | - Francis M. Mutuku
- Department of Environment and Health Sciences, Technical University of Mombasa, Mombasa, Kenya
| | - Charles H. King
- Center for Global Health and Diseases, Case Western Reserve University School of Medicine, Cleveland, Ohio, United States of America
- * E-mail:
| | - A. Desirée LaBeaud
- Division of Infectious Diseases, Department of Pediatrics, Lucille Packard Children’s Hospital at Stanford School of Medicine, Stanford, California, United States of America
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Osei E, Kwain S, Mawuli GT, Anang AK, Owusu KBA, Camas M, Camas AS, Ohashi M, Alexandru-Crivac CN, Deng H, Jaspars M, Kyeremeh K. Paenidigyamycin A, Potent Antiparasitic Imidazole Alkaloid from the Ghanaian Paenibacillus sp. DE2SH. Mar Drugs 2018; 17:md17010009. [PMID: 30586918 PMCID: PMC6356793 DOI: 10.3390/md17010009] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2018] [Revised: 12/17/2018] [Accepted: 12/17/2018] [Indexed: 12/23/2022] Open
Abstract
A new alkaloid paenidigyamycin A (1) was obtained from the novel Ghanaian Paenibacillus sp. isolated from the mangrove rhizosphere soils of the Pterocarpus santalinoides tree growing in the wetlands of the Digya National Park, Ghana. Compound 1 was isolated on HPLC at tR = 37.0 min and its structure determined by MS, 1D, and 2D-NMR data. When tested against L. major, 1 (IC50 0.75 µM) was just as effective as amphotericin B (IC50 0.31 µM). Against L. donovani, 1 (IC50 7.02 µM) was twenty-two times less active than amphotericin B (IC50 0.32 µM), reinforcing the unique effectiveness of 1 against L. major. For T. brucei brucei, 1 (IC50 0.78 µM) was ten times more active than the laboratory standard Coptis japonica (IC50 8.20 µM). The IC50 of 9.08 µM for 1 against P. falciparum 3d7 compared to artesunate (IC50 36 nM) was not strong, but this result suggests the possibility of using the paenidigyamycin scaffold for the development of potent antimalarial drugs. Against cercariae, 1 showed high anticercaricidal activity compared to artesunate. The minimal lethal concentration (MLC) and minimal effective concentration (MEC) of the compound were 25 and 6.25 µM, respectively, while artesunate was needed in higher quantities to produce such results. However, 1 (IC50 > 100 µM) was not active against T. mobilensis.
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Affiliation(s)
- Enoch Osei
- Marine and Plant Research Laboratory of Ghana, Department of Chemistry, School of Physical and Mathematical Sciences, University of Ghana, P.O. Box LG 56, Legon-Accra, Ghana.
| | - Samuel Kwain
- Marine and Plant Research Laboratory of Ghana, Department of Chemistry, School of Physical and Mathematical Sciences, University of Ghana, P.O. Box LG 56, Legon-Accra, Ghana.
| | - Gilbert Tetevi Mawuli
- Marine and Plant Research Laboratory of Ghana, Department of Chemistry, School of Physical and Mathematical Sciences, University of Ghana, P.O. Box LG 56, Legon-Accra, Ghana.
| | - Abraham Kwabena Anang
- Department of Parasitology, Noguchi Memorial Institute for Medical Research, University of Ghana, P.O. Box LG 581, Legon-Accra, Ghana.
| | - Kofi Baffour-Awuah Owusu
- Department of Parasitology, Noguchi Memorial Institute for Medical Research, University of Ghana, P.O. Box LG 581, Legon-Accra, Ghana.
| | - Mustafa Camas
- Department of Bioengineering, Munzur University, 62000 Tunceli, Turkey.
| | - Anil Sazak Camas
- Department of Bioengineering, Munzur University, 62000 Tunceli, Turkey.
| | - Mitsuko Ohashi
- Section of Environmental Parasitology, Tokyo Medical and Dental University, Tokyo 113-8510, Japan.
| | | | - Hai Deng
- Marine Biodiscovery Centre, Department of Chemistry, University of Aberdeen, Old Aberdeen, AB24 3UE Scotland, UK.
| | - Marcel Jaspars
- Marine Biodiscovery Centre, Department of Chemistry, University of Aberdeen, Old Aberdeen, AB24 3UE Scotland, UK.
| | - Kwaku Kyeremeh
- Marine and Plant Research Laboratory of Ghana, Department of Chemistry, School of Physical and Mathematical Sciences, University of Ghana, P.O. Box LG 56, Legon-Accra, Ghana.
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Arakala A, Hoover CM, Marshall JM, Sokolow SH, De Leo GA, Rohr JR, Remais JV, Gambhir M. Estimating the elimination feasibility in the 'end game' of control efforts for parasites subjected to regular mass drug administration: Methods and their application to schistosomiasis. PLoS Negl Trop Dis 2018; 12:e0006794. [PMID: 30418968 PMCID: PMC6258430 DOI: 10.1371/journal.pntd.0006794] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2017] [Revised: 11/26/2018] [Accepted: 08/27/2018] [Indexed: 11/18/2022] Open
Abstract
Progress towards controlling and eliminating parasitic worms, including schistosomiasis, onchocerciasis, and lymphatic filariasis, is advancing rapidly as national governments, multinational NGOs, and pharmaceutical companies launch collaborative chemotherapeutic control campaigns. Critical questions remain regarding the potential for achieving elimination of these infections, and analytical methods can help to quickly estimate progress towards-and the probability of achieving-elimination over specific timeframes. Here, we propose the effective reproduction number, Reff, as a proxy of elimination potential for sexually reproducing worms that are subject to poor mating success at very low abundance (positive density dependence, or Allee effects). Reff is the number of parasites produced by a single reproductive parasite at a given stage in the transmission cycle, over the parasite's lifetime-it is the generalized form of the more familiar basic reproduction number, R0, which only applies at the beginning of an epidemic-and it can be estimated in a 'model-free' manner by an estimator ('ε'). We introduce ε, demonstrate its estimation using simulated data, and discuss how it may be used in planning and evaluation of ongoing elimination efforts for a range of parasitic diseases.
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Affiliation(s)
- Arathi Arakala
- Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, Australia
| | - Christopher M. Hoover
- Division of Environmental Health Sciences, School of Public Health, University of California, Berkeley, California, United States of America
| | - John M. Marshall
- Division of Epidemiology and Biostatistics, School of Public Health, University of California, Berkeley, California, United States of America
| | - Susanne H. Sokolow
- Department of Biology—Hopkins Marine Station, Stanford University, Pacific Grove, California, United States of America
| | - Giulio A. De Leo
- Department of Biology—Hopkins Marine Station, Stanford University, Pacific Grove, California, United States of America
| | - Jason R. Rohr
- Department of Integrative Biology, University of Southern Florida, Tampa, Florida, United States of America
| | - Justin V. Remais
- Division of Environmental Health Sciences, School of Public Health, University of California, Berkeley, California, United States of America
| | - Manoj Gambhir
- Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, Australia
- Health Modelling and Analytics, IBM Research Australia, Melbourne, Australia
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25
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Affiliation(s)
- James H. McKerrow
- Center for Discovery and Innovation in Parasitic Diseases, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California San Diego, La Jolla, California, United States of America
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Cock IE, Selesho MI, Van Vuuren SF. A review of the traditional use of southern African medicinal plants for the treatment of selected parasite infections affecting humans. J Ethnopharmacol 2018; 220:250-264. [PMID: 29621583 DOI: 10.1016/j.jep.2018.04.001] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/13/2017] [Revised: 03/19/2018] [Accepted: 04/01/2018] [Indexed: 06/08/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Worldwide, more than three billion cases of parasitic disease are reported yearly and it is likely that this figure is substantially under-estimated. Approximately one in six people globally are estimated to be infected with at least one parasite species annually. In South Africa, the prevalence of Schistosoma haematobium (bilharzia) and intestinal worms and helminths are particularly high, especially in children and in crowded or poorer rural communities with inadequate sanitation and nutrition. Despite alarmingly high estimates, medical research into parasitic diseases remains neglected and only malaria receives significant attention and funding. Traditional medicines have been used for centuries in Africa by multiple ethnic groups and many people rely on these healing systems as their primary healthcare modality. The traditional use of South African medicinal plants to treat parasite infestations is relatively well documented, and it is important to link these traditional uses to scientific evidence validating efficacy. AIM OF THE STUDY To document the medicinal plants used for parasitic infections and critically review the literature on the anti-parasitic properties of South African plants against some neglected parasitic diseases. MATERIALS AND METHODS A review of the literature (ethnobotanical books and publications documenting traditional plant use) was undertaken related to specific medicinal use for parasitic infections in Southern Africa. Inclusion criteria focused on human use. Exclusion criteria included veterinary use and malaria due to the extensive nature of these subject matters. An in-depth analysis of previous studies was undertaken and future prospectives are considered. RESULTS In particular, bilharzia, gastrointestinal worms and helminths, ectoparasites, trichomoniasis, leishmaniasis and trypanosomiasis are reviewed with special emphasis on the gaps in research. CONCLUSIONS Despite the availability of relatively extensive ethnobotanical records on the anti-parasitic properties of southern African medicinal plants, the antiparasitic properties of many plants have been poorly examined. There was in many instances a lack of evidence to support traditional use of many species towards some parasites and research is urgently needed in this area.
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Affiliation(s)
- I E Cock
- School of Natural Sciences, Nathan Campus, Griffith University, 170 Kessels Rd, Nathan, Queensland 4111, Australia; Environmental Futures Research Institute, Nathan Campus, Griffith University, 170 Kessels Rd, Nathan, Queensland 4111, Australia
| | - M I Selesho
- Department of Pharmacy and Pharmacology, Faculty of Health Sciences, University of the Witwatersrand, 7 York Rd, Parktown, Gauteng 2193, South Africa
| | - S F Van Vuuren
- Department of Pharmacy and Pharmacology, Faculty of Health Sciences, University of the Witwatersrand, 7 York Rd, Parktown, Gauteng 2193, South Africa.
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27
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Nelson R. Price hikes could affect treatment for NTDs in the USA. Lancet Infect Dis 2018; 18:150-151. [PMID: 29412967 DOI: 10.1016/s1473-3099(18)30007-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
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28
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Martínez-Archundia M, Bello M, Correa-Basurto J. Design of Drugs by Filtering Through ADMET, Physicochemical and Ligand-Target Flexibility Properties. Methods Mol Biol 2018; 1824:403-416. [PMID: 30039421 DOI: 10.1007/978-1-4939-8630-9_24] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
There is a synergistic interaction between medicinal chemistry, chemoinformatics, and bioinformatics. The last one includes analyses of sequences as well as structural analysis which employ computational techniques such as docking studies and molecular dynamics (MD) simulations. Over the last years these techniques have allowed the development of new accurate computational tools for drug design. As a result, there have been an increased number of publications where computational methods such as pharmacophore modeling, de novo drug design, evaluation of physicochemical properties, and analysis of ADMET (absorption, distribution, metabolism, excretion, and toxicity) properties have been quite useful for eliminating the compounds with poor physicochemical or toxicological properties. Furthermore, using MD simulations and docking analysis, it is possible to estimate the binding energy of the protein-ligand complexes by using scoring functions, as well as to structurally depict the binding pose of the compounds on proteins, in order to select the best evaluated compounds for subsequent synthetizing and evaluation through biological assays. In this work, we describe some computational tools that have been used for structure-based drug design of new compounds that target histone deacetylases (HDACs), which are known to be potential targets in cancer and parasitic diseases.
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Affiliation(s)
- Marlet Martínez-Archundia
- Laboratorio de Modelado Molecular, Bioinformática y Diseño de Fármacos, de la Escuela Superior de Medicina, Instituto Politécnico Nacional, Plan de San Luis y Díaz Mirón s/n, Col. Casco de Santo Tomas, Delegación Miguel Hidalgo, C.P., Ciudad de México, Mexico
| | - Martiniano Bello
- Laboratorio de Modelado Molecular, Bioinformática y Diseño de Fármacos, de la Escuela Superior de Medicina, Instituto Politécnico Nacional, Plan de San Luis y Díaz Mirón s/n, Col. Casco de Santo Tomas, Delegación Miguel Hidalgo, C.P., Ciudad de México, Mexico.
| | - Jose Correa-Basurto
- Laboratorio de Modelado Molecular, Bioinformática y Diseño de Fármacos, de la Escuela Superior de Medicina, Instituto Politécnico Nacional, Plan de San Luis y Díaz Mirón s/n, Col. Casco de Santo Tomas, Delegación Miguel Hidalgo, C.P., Ciudad de México, Mexico.
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30
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O'Neil CR, Fanella S. One lab finding, 2 vastly different causes. J Fam Pract 2016; 65:715-718. [PMID: 27846328] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
While both of these patients had eosinophilia, their diagnoses ended up being quite different. What is the best approach to the diagnosis and management of eosinophilia in the ambulatory care setting?
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Affiliation(s)
- Conar R O'Neil
- Department of Internal Medicine, University of Calgary Cumming School of Medicine, Alberta, Canada
| | - Sergio Fanella
- Department of Pediatrics and Child Health and Department of Medical Microbiology, University of Manitoba, Winnipeg, Canada.
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31
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Pant ND, Sharma M, Neupane S. Taenia Solium Sneezed out from Nose by an Asymptomatic Child. J Nepal Health Res Counc 2016; 14:207-209. [PMID: 28327688] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Taenia solium is an intestinal parasite and may be excreted in feces in infected patients but our case is unique, as an asymptomatic child sneezed out the proglottids of the parasite from his nose. After the full course of antihelminthic drug the patient excreted a whole worm in his stool.
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Affiliation(s)
- N D Pant
- Department of Microbiology, Grande International Hospital, Dhapasi, Kathmandu, Nepal
| | - M Sharma
- Department of Microbiology, Kathmandu Medical College, Kathmandu, Nepal
| | - S Neupane
- Central Department of Microbiology, Tribhuvan University, Kirtipur, Kathmandu, Nepal
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Sojka D, Hartmann D, Bartošová-Sojková P, Dvořák J. Parasite Cathepsin D-Like Peptidases and Their Relevance as Therapeutic Targets. Trends Parasitol 2016; 32:708-723. [PMID: 27344362 DOI: 10.1016/j.pt.2016.05.015] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2016] [Revised: 04/27/2016] [Accepted: 05/25/2016] [Indexed: 11/18/2022]
Abstract
Inhibition of aspartic cathepsin D-like peptidases (APDs) has been often discussed as an antiparasite intervention strategy. APDs have been considered as virulence factors of Trypanosoma cruzi and Leishmania spp., and have been demonstrated to have important roles in protein trafficking mechanisms of apicomplexan parasites. APDs also initiate blood digestion as components of multienzyme proteolytic complexes in malaria, platyhelminths, nematodes, and ticks. Increasing DNA and RNA sequencing data indicate that parasites express multiple APD isoenzymes of various functions that can now be specifically evaluated using new functional-genomic and biochemical tools, from which we can further assess the potential of APDs as targets for novel effective intervention strategies against parasitic diseases that still pose an alarming threat to mankind.
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Affiliation(s)
- Daniel Sojka
- Institute of Parasitology, Biology Centre, The Czech Academy of Sciences, Ceske Budejovice 370 05, Czech Republic.
| | - David Hartmann
- Institute of Parasitology, Biology Centre, The Czech Academy of Sciences, Ceske Budejovice 370 05, Czech Republic
| | - Pavla Bartošová-Sojková
- Institute of Parasitology, Biology Centre, The Czech Academy of Sciences, Ceske Budejovice 370 05, Czech Republic
| | - Jan Dvořák
- Institute of Molecular Genetics, The Czech Academy of Sciences, Prague 14220, Czech Republic; Institute of Organic Chemistry and Biochemistry, The Czech Academy of Sciences, Prague 16610, Czech Republic; School of Biological Sciences, Queen's University Belfast, Belfast BT9 7BL, UK
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Iribarren JA, Rubio R, Aguirrebengoa K, Arribas JR, Baraia-Etxaburu J, Gutiérrez F, Lopez Bernaldo de Quirós JC, Losa JE, Miró JM, Moreno S, Pérez Molina J, Podzamczer D, Pulido F, Riera M, Rivero A, Sanz Moreno J, Amador C, Antela A, Arazo P, Arrizabalaga J, Bachiller P, Barros C, Berenguer J, Caylá J, Domingo P, Estrada V, Knobel H, Locutura J, López Aldeguer J, Llibre JM, Lozano F, Mallolas J, Malmierca E, Miralles C, Miralles P, Muñoz A, Ocampo A, Olalla J, Pérez I, Pérez Elías MJ, Pérez Arellano JL, Portilla J, Ribera E, Rodríguez F, Santín M, Sanz Sanz J, Téllez MJ, Torralba M, Valencia E, Von Wichmann MA. Executive summary: Prevention and treatment of opportunistic infections and other coinfections in HIV-infected patients: May 2015. Enferm Infecc Microbiol Clin 2016; 34:517-23. [PMID: 27056581 DOI: 10.1016/j.eimc.2016.02.025] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2016] [Revised: 02/15/2016] [Accepted: 02/16/2016] [Indexed: 11/19/2022]
Abstract
Opportunistic infections continue to be a cause of morbidity and mortality in HIV-infected patients. They often arise because of severe immunosuppression resulting from poor adherence to antiretroviral therapy, failure of antiretroviral therapy, or unawareness of HIV infection by patients whose first clinical manifestation of AIDS is an opportunistic infection. The present article is an executive summary of the document that updates the previous recommendations on the prevention and treatment of opportunistic infections in HIV-infected patients, namely, infections by parasites, fungi, viruses, mycobacteria, and bacteria, as well as imported infections. The article also addresses immune reconstitution inflammatory syndrome. This document is intended for all professionals who work in clinical practice in the field of HIV infection.
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Kircik LH, Del Rosso JQ, Layton AM, Schauber J. Over 25 Years of Clinical Experience With Ivermectin: An Overview of Safety for an Increasing Number of Indications. J Drugs Dermatol 2016; 15:325-332. [PMID: 26954318] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Although the broad-spectrum anti-parasitic effects of the avermectin derivative ivermectin are well documented, its anti-inflammatory activity has only recently been demonstrated. For over 25 years, ivermectin has been used to treat parasitic infections in mammals, with a good safety profile that may be attributed to its high affinity to invertebrate neuronal ion channels and its inability to cross the blood-brain barrier in humans and other mammals. Numerous studies report low rates of adverse events, as an oral treatment for parasitic infections, scabies and head lice. Ivermectin has been used off-label to treat diseases associated with Demodex mites, such as blepharitis and demodicidosis. New evidence has linked Demodex mites to rosacea, a chronic inflammatory disease. Ivermectin has recently received FDA and EU approval for the treatment of adult patients with inflammatory lesions of rosacea, a disease in which this agent has been shown to be well tolerated. After more than 25 years of use, ivermectin continues to provide a high margin of safety for a growing number of indications based on its anti-parasitic and anti-inflammatory activities.
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35
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Goldman A, Boije af Gennis G, Xhaard H, Meri S, Yli-Kauhaluoma J. [Pyrophosphate in medicine]. Duodecim 2016; 132:1111-1117. [PMID: 27483627] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
In all organisms from bacteria to humans, specific hydrolases--pyrophosphatases--hydrolyse inorganic pyrophosphate to phosphate. Without this, DNA, RNA and protein synthesis stops. Pyrophosphatases are thus essential for all life. In humans, disorders in pyrophosphate metabolism cause chondrocalcinosis and hypophosphatasia. Currently, pyrophosphate analogues, e.g. alendronate, are in clinical use in osteoporosis and Paget's disease but also for e.g. complications of prostate cancer. In bacteria and protozoan parasites, membrane-bound pyrophosphatases (mPPases), which do not occur in humans, convert pyrophosphate to a proton or sodium gradient. mPPases, which are crucial for protozoan parasites, are thus promising drug targets e.g. for malaria and leishmaniasis.
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Drake LJ, Singh S, Mishra CK, Sinha A, Kumar S, Bhushan R, Hollingsworth TD, Appleby LJ, Kumar R, Sharma K, Kumar Y, Raman S, Chakrabarty S, Kihara JH, Gunawardena NK, Hollister G, Kumar V, Ankur A, Prasad B, Ramachandran S, Fishbane A, Makkar P. Bihar's Pioneering School-Based Deworming Programme: Lessons Learned in Deworming over 17 Million Indian School-Age Children in One Sustainable Campaign. PLoS Negl Trop Dis 2015; 9:e0004106. [PMID: 26584484 PMCID: PMC4652892 DOI: 10.1371/journal.pntd.0004106] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Affiliation(s)
- Lesley J. Drake
- Partnership for Child Development, Imperial College London, School of Public Health, Faculty of Medicine, Imperial College London, London, United Kingdom
- Deworm the World, Washington, D.C., United States of America
- London Centre for Neglected Tropical Disease Research, Imperial College London, School of Public Health, Faculty of Medicine, London, United Kingdom
- * E-mail:
| | - Sarman Singh
- Division of Clinical Microbiology & Molecular Medicine, All India Institute of Medical Sciences, New Delhi, India
| | - C. K. Mishra
- Department of Health and Family Welfare, Government of Bihar, Bihar, India
| | - Amarjeet Sinha
- Department of Health and Family Welfare, Government of Bihar, Bihar, India
| | | | | | - T. Deirdre Hollingsworth
- London Centre for Neglected Tropical Disease Research, Imperial College London, School of Public Health, Faculty of Medicine, London, United Kingdom
- School of Life Sciences, University of Warwick, Coventry, United Kingdom
- Warwick Mathematics Institute, University of Warwick, Coventry, United Kingdom
- Department of Clinical Sciences, Liverpool School of Tropical Medicine, Liverpool, United Kingdom
| | - Laura J. Appleby
- Partnership for Child Development, Imperial College London, School of Public Health, Faculty of Medicine, Imperial College London, London, United Kingdom
- London Centre for Neglected Tropical Disease Research, Imperial College London, School of Public Health, Faculty of Medicine, London, United Kingdom
| | - Rakesh Kumar
- Deworm the World, Washington, D.C., United States of America
| | - Kriti Sharma
- Deworm the World, Washington, D.C., United States of America
| | - Yogita Kumar
- Deworm the World, Washington, D.C., United States of America
| | - Sri Raman
- Deworm the World, Washington, D.C., United States of America
| | | | - Jimmy H. Kihara
- Eastern and Southern Africa Centre of International Parasite Control, Kenya Medical Research Institute (KEMRI), Nairobi, Kenya
| | - N. K. Gunawardena
- Department of Parasitology, University of Kelaniya, Ragama, Sri Lanka
| | - Grace Hollister
- Deworm the World, Washington, D.C., United States of America
- Innovations for Poverty Action, New Haven, Connecticut, United States of America
- Evidence Action, Washington, D.C., United States of America
| | - Vandana Kumar
- Deworm the World, Washington, D.C., United States of America
| | - Anish Ankur
- Deworm the World, Washington, D.C., United States of America
| | - Babul Prasad
- Deworm the World, Washington, D.C., United States of America
| | | | - Alissa Fishbane
- Deworm the World, Washington, D.C., United States of America
- Innovations for Poverty Action, New Haven, Connecticut, United States of America
| | - Prerna Makkar
- Partnership for Child Development, Imperial College London, School of Public Health, Faculty of Medicine, Imperial College London, London, United Kingdom
- Deworm the World, Washington, D.C., United States of America
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Nau JY. [2015: the Nobel jury reveals research against parasitic diseases]. Rev Med Suisse 2015; 11:1922-1923. [PMID: 26665663] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
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Fernandez O, Alvarez-Cermeno JC, Arroyo R, Brieva L, Calles-Hernandez MC, Casanova-Estruch B, Comabella M, Garcia-Merino JA, Ginestal R, Izquierdo G, Meca-Lallana JE, Mendibe-Bilbao MM, Montalban X, Munoz-Garcia D, Olascoaga J, Oliva-Nacarino P, Oreja-Guevara C, Ramio-Torrenta L, Romero-Pinel L, Rodriguez-Antiguedad A, Saiz A, Tintore M, Grupo Post-Ectrims GPE. Review of the novelties from the 2014 ECTRIMS-ACTRIMS Joint Congress, presented at the 7th Post-ECTRIMS Meeting (II). Rev Neurol 2015; 61:271-283. [PMID: 26350778] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
For the seventh year in a row the Post-ECTRIMS Meeting has been held in Madrid (Spain). Renowned specialists in multiple sclerosis and national leaders in this area have gathered once again to discuss the novelties presented at the 2014 ECTRIM-ACTRIMS World Congress. That meeting gave rise to this review, which is published in two parts. This second part shows that immunological phenomena are increasingly more present in the pathogenesis of the disease, and that the interaction between inflammation and neurodegeneration is becoming more apparent. Metabolic, mitochondrial dysfunction and oxidative stress phenomena are also involved in axonal degeneration and the experimental models open up the way to promising new therapeutic approaches for regenerative strategies. Although ambitious, inducible neural progenitor cells have become a promising alternative to the conventional treatments with stem cells, and the identification of new genetic variants of susceptibility to multiple sclerosis opens up the way to the discovery of new drugs. Reconsidering the value of old drugs and procedures would be another alternative therapeutic development.
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Affiliation(s)
- O Fernandez
- Fundacion IMABIS, Hospital Universitario Carlos Haya, 29190 Malaga, Espana
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King KC, Stelkens RB, Webster JP, Smith DF, Brockhurst MA. Hybridization in Parasites: Consequences for Adaptive Evolution, Pathogenesis, and Public Health in a Changing World. PLoS Pathog 2015; 11:e1005098. [PMID: 26336070 PMCID: PMC4559376 DOI: 10.1371/journal.ppat.1005098] [Citation(s) in RCA: 89] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Affiliation(s)
- Kayla C. King
- Department of Zoology, University of Oxford, Oxford, United Kingdom
| | | | - Joanne P. Webster
- Department of Pathology and Pathogen Biology, Centre for Emerging, Endemic and Exotic Diseases (CEEED), Royal Veterinary College, University of London, London, United Kingdom
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Yılmaz H, Taş Cengiz Z, Dülger AC, Ekici P. [Infestation of the human digestive system with beetle larvae (Coleoptera: Cantharidae): a case report]. Turkiye Parazitol Derg 2014; 38:278-280. [PMID: 25732890 DOI: 10.5152/tpd.2014.3548] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
This study was conducted to report the digestive system infestation caused by the larvae of Coleoptera in a female pediatric patient. She was admitted to our hospital with the complaints of emergence of insect larvae from her vomit and feces, abdominal pain, inguinal pain, lack of appetite, hair loss, excessive cleaning behavior, extreme irritability, and distractibility. The larvae observed typically had the morphology of the larvae of insects related to the Cantharidae family in the Coleoptera order. For treatment, a single dose of albendazole (400 mg) was used. Consequently, in the present case, it was seen that the larvae of Coleoptera incidentally taken orally could continue to live for a period in the digestive tract of people, without losing vitality, and the larvae caused a variety of symptoms due to both their toxic agents and the possible irritation they caused.
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Affiliation(s)
- Hasan Yılmaz
- Yüzüncü Yıl Üniversitesi Tıp Fakültesi Parazitoloji Anabilim Dalı, Van, Türkiye.
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Visvesvara GS, Arrowood MJ, Qvarnstrom Y, Sriram R, Bandea R, Wilkins PP, Farnon E, Weitzman G. Concurrent parasitic infections in a renal transplant patient. Emerg Infect Dis 2014; 19:2044-5. [PMID: 24274742 PMCID: PMC3840861 DOI: 10.3201/eid1912.120926] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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Woodhall D, Jones JL, Cantey PT, Wilkins PP, Montgomery SP. Neglected parasitic infections: what every family physician needs to know. Am Fam Physician 2014; 89:803-811. [PMID: 24866216] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Neglected parasitic infections, including Chagas disease, toxocariasis, cysticercosis, and toxoplasmosis, affect millions of persons in the United States. Relatively few resources have been devoted to surveillance, prevention, and treatment of these diseases. Chagas disease primarily affects Latin American immigrants and can cause heart failure and death if not treated. Immediate antiparasitic treatment is indicated for most patients with acute Chagas disease. Treatment is recommended for patients younger than 18 years who have chronic Chagas disease and is generally recommended for adults younger than 50 years who do not have advanced cardiomyopathy; treatment decisions for other patients should be made on an individual basis. Toxocariasis primarily affects children and can cause gastrointestinal, respiratory, and ophthalmologic disease. Treatment options include albendazole and mebendazole. Patients with ocular infection require referral to an ophthalmologist. Neurocysticercosis, a form of cysticercosis, is the most common infectious cause of seizures in some parts of the United States. Initial treatment should focus on symptom control. Humans generally acquire toxoplasmosis by eating undercooked contaminated meat or ingesting things that have been contaminated with cat feces. Congenital infection can result in miscarriage or adverse fetal effects. Treatment is recommended for immunosuppressed persons, pregnant women, and immunocompetent persons with severe symptoms.
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Affiliation(s)
- Dana Woodhall
- Centers for Disease Control and Prevention, Atlanta, GA, USA
| | - Jeffrey L Jones
- Centers for Disease Control and Prevention, Atlanta, GA, USA
| | - Paul T Cantey
- Centers for Disease Control and Prevention, Atlanta, GA, USA
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Woodhall DM, Mkwanda S, Dembele M, Lwanga H, Drexler N, Dubray C, Harris J, Worrell C, Mathieu E. Exploring innovative ways to conduct coverage surveys for neglected tropical diseases in Malawi, Mali, and Uganda. Acta Trop 2014; 132:119-24. [PMID: 24462795 DOI: 10.1016/j.actatropica.2014.01.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2013] [Revised: 10/18/2013] [Accepted: 01/09/2014] [Indexed: 11/29/2022]
Abstract
Currently, a 30-cluster survey to monitor drug coverage after mass drug administration for neglected tropical diseases is the most common methodology used by control programs. We investigated alternative survey methodologies that could potentially provide an estimation of drug coverage. Three alternative survey methods (market, village chief, and religious leader) were conducted and compared to the 30-cluster method in Malawi, Mali, and Uganda. In Malawi, drug coverage for the 30-cluster, market, village chief, and religious leader methods were 66.8% (95% CI 60.3-73.4), 74.3%, 76.3%, and 77.8%, respectively. In Mali, results for round 1 were 62.6% (95% CI 54.4-70.7), 56.1%, 74.8%, and 83.2%, and 57.2% (95% CI 49.0-65.4), 54.5%, 72.2%, and 73.3%, respectively, for round 2. Uganda survey results were 65.7% (59.4-72.0), 43.7%, 67.2%, and 77.6% respectively. Further research is needed to test different coverage survey methodologies to determine which survey methods are the most scientifically rigorous and resource efficient.
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Affiliation(s)
- Dana M Woodhall
- Parasitic Diseases Branch Centers for Disease Control Prevention, 1600 Clifton Road, Atlanta, GA 30333, United States.
| | - Square Mkwanda
- Ministry of Health, P.O. Box 30377, Capital City, Lilongwe 3, Malawi.
| | | | - Harriet Lwanga
- RTI Uganda, P.O. Box 1661, Buganda Road, Kampala, Uganda.
| | - Naomi Drexler
- Parasitic Diseases Branch Centers for Disease Control Prevention, 1600 Clifton Road, Atlanta, GA 30333, United States
| | - Christine Dubray
- Parasitic Diseases Branch Centers for Disease Control Prevention, 1600 Clifton Road, Atlanta, GA 30333, United States
| | - Jennifer Harris
- Parasitic Diseases Branch Centers for Disease Control Prevention, 1600 Clifton Road, Atlanta, GA 30333, United States
| | - Caitlin Worrell
- Parasitic Diseases Branch Centers for Disease Control Prevention, 1600 Clifton Road, Atlanta, GA 30333, United States
| | - Els Mathieu
- Parasitic Diseases Branch Centers for Disease Control Prevention, 1600 Clifton Road, Atlanta, GA 30333, United States
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Njelesani J, Dacombe R, Palmer T, Smith H, Koudou B, Bockarie M, Bates I. A systematic approach to capacity strengthening of laboratory systems for control of neglected tropical diseases in Ghana, Kenya, Malawi and Sri Lanka. PLoS Negl Trop Dis 2014; 8:e2736. [PMID: 24603407 PMCID: PMC3945753 DOI: 10.1371/journal.pntd.0002736] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2013] [Accepted: 01/29/2014] [Indexed: 11/23/2022] Open
Abstract
Background The lack of capacity in laboratory systems is a major barrier to achieving the aims of the London Declaration (2012) on neglected tropical diseases (NTDs). To counter this, capacity strengthening initiatives have been carried out in NTD laboratories worldwide. Many of these initiatives focus on individuals' skills or institutional processes and structures ignoring the crucial interactions between the laboratory and the wider national and international context. Furthermore, rigorous methods to assess these initiatives once they have been implemented are scarce. To address these gaps we developed a set of assessment and monitoring tools that can be used to determine the capacities required and achieved by laboratory systems at the individual, organizational, and national/international levels to support the control of NTDs. Methodology and principal findings We developed a set of qualitative and quantitative assessment and monitoring tools based on published evidence on optimal laboratory capacity. We implemented the tools with laboratory managers in Ghana, Malawi, Kenya, and Sri Lanka. Using the tools enabled us to identify strengths and gaps in the laboratory systems from the following perspectives: laboratory quality benchmarked against ISO 15189 standards, the potential for the laboratories to provide support to national and regional NTD control programmes, and the laboratory's position within relevant national and international networks and collaborations. Conclusion We have developed a set of mixed methods assessment and monitoring tools based on evidence derived from the components needed to strengthen the capacity of laboratory systems to control NTDs. Our tools help to systematically assess and monitor individual, organizational, and wider system level capacity of laboratory systems for NTD control and can be applied in different country contexts. Capacity strengthening activities such as technical training for staff, student research project supervision, and equipment provision are being carried out in laboratories worldwide as part of the global effort to control neglected tropical diseases (NTDs). However, these activities often focus on developing the skill sets of an individual and are not being thoroughly monitored and assessed. To address these gaps we developed a set of monitoring and assessment tools that can be used to determine the capacities required and achieved by laboratory systems to support the control of NTDs. The tools simultaneously focus on individuals (e.g., technicians, students, researchers), organisations (e.g., universities, research institutions, clinical facilities), national governments, and international agencies. Using the tools highlighted the strengths and limitations of each laboratory system in addition to the role of the laboratory regionally and internationally. We used the tools in Kenya, Ghana, Malawi and Sri Lanka, and concluded that our tools can be adapted and tailored to use in other countries and laboratories.
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Affiliation(s)
- Janet Njelesani
- Capacity Research Unit, Department of International Public Health, Liverpool School of Tropical Medicine, Liverpool, United Kingdom
- * E-mail:
| | - Russell Dacombe
- Capacity Research Unit, Department of International Public Health, Liverpool School of Tropical Medicine, Liverpool, United Kingdom
| | - Tanith Palmer
- Capacity Research Unit, Department of International Public Health, Liverpool School of Tropical Medicine, Liverpool, United Kingdom
| | - Helen Smith
- Capacity Research Unit, Department of International Public Health, Liverpool School of Tropical Medicine, Liverpool, United Kingdom
| | - Benjamin Koudou
- Centre for Neglected Tropical Diseases, Department of Parasitology, Liverpool School of Tropical Medicine, Liverpool, United Kingdom
| | - Moses Bockarie
- Centre for Neglected Tropical Diseases, Department of Parasitology, Liverpool School of Tropical Medicine, Liverpool, United Kingdom
| | - Imelda Bates
- Capacity Research Unit, Department of International Public Health, Liverpool School of Tropical Medicine, Liverpool, United Kingdom
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Abstract
Parasites are eukaryotic pathogens and largely include protozoa, helminths and arthropods that cause different diseases to human. Parasitic diseases have a significant impact on developing countries and it has raised the mortality rate to various millions per year. Despite the recent progress, no vaccines are presently available against any of the major parasitic infections of humans. Chemotherapy remains the only option for both clinical and control management. However, conventional drugs are present with features that limit their utility, such as high cost, poor compliance, drug resistance, low efficacy and poor safety. There is thus a clear need for new therapeutic agents against parasites infections.
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Affiliation(s)
- Lianet Monzote
- Lianet Departamento de Parasitologia, Instituto de Medicina Tropical "Pedro Kouri", Apartado Postal 601, Marianao 13, La Habana, Cuba.
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Yao Y, Yu CX. [Progress of research on genetic engineering antibody and its application in prevention and control of parasitic diseases]. Zhongguo Xue Xi Chong Bing Fang Zhi Za Zhi 2013; 25:413-416. [PMID: 24358756] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Antibody has extensive application prospects in the biomedical field. The inherent disadvantages of traditional polyclonal antibody and monoclonal antibody limit their application values. The humanized and fragmented antibody remodeling has given a rise to a series of genetic engineered antibody variant. This paper reviews the progress of research on genetic engineering antibody and its application in prevention and control of parasitic diseases.
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Affiliation(s)
| | - Chuan-xin Yu
- Jiangsu Institute of Parasitic Diseases, Ministry of Health, Jiangsu Provincial Key Laboratory of Parasite Molecular Biology, Wuxi, 214064, China
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Rilkoff H, Tukahebwa EM, Fleming FM, Leslie J, Cole DC. Exploring gender dimensions of treatment programmes for neglected tropical diseases in Uganda. PLoS Negl Trop Dis 2013; 7:e2312. [PMID: 23875047 PMCID: PMC3708858 DOI: 10.1371/journal.pntd.0002312] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2012] [Accepted: 06/01/2013] [Indexed: 11/26/2022] Open
Abstract
Background Gender remains a recognized but relatively unexamined aspect of the potential challenges for treatment programmes for Neglected Tropical Diseases (NTDs). We sought to explore the role of gender in access to treatment in the Uganda National Neglected Tropical Disease Control Programme. Methodology/Principal Findings Quantitative and qualitative data was collected in eight villages in Buyende and Kamuli districts, Eastern Uganda. Quantitative data on the number of persons treated by age and gender was identified from treatment registers in each village. Qualitative data was collected through semi-structured interviews with sub-county supervisors, participant observation and from focus group discussions with community leaders, community medicine distributors (CMDs), men, women who were pregnant or breastfeeding at the time of mass-treatment, and adolescent males and females. Findings include the following: (i) treatment registers are often incomplete making it difficult to obtain accurate estimates of the number of persons treated; (ii) males face more barriers to accessing treatment than women due to occupational roles which keep them away from households or villages for long periods, and males may be more distrustful of treatment; (iii) CMDs may be unaware of which medicines are safe for pregnant and breastfeeding women, resulting in women missing beneficial treatments. Conclusions/Significance Findings highlight the need to improve community-level training in drug distribution which should include gender-specific issues and guidelines for treating pregnant and breastfeeding women. Accurate age and sex disaggregated measures of the number of community members who swallow the medicines are also needed to ensure proper monitoring and evaluation of treatment programmes. This study explored gender-related factors that may influence community member access and adherence to treatment programmes for NTDs in Uganda. A large number of previous studies have identified community-based mass-treatment programmes as an effective strategy to treat affected populations. However, limited evidence is available to discuss challenges to treatment access, adherence, delivery and monitoring at community level. Quantitative data from treatment registers suggested that men were less likely to access treatment than women in at least two villages. It also revealed difficulties in community-based monitoring of the programmes, creating challenges in ascertaining how many persons are able to access the programme. Qualitative data collected from district health workers, community leaders, community medicine distributors and community members suggested that socio-behavioural and structural barriers to treatment access may be present for both genders. Results of the study identify gender-based challenges to treatment access that should be considered in planning, implementing and evaluating national treatment programmes for NTDs.
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Affiliation(s)
- Heather Rilkoff
- Dalla Lana School of Public Health, University of Toronto, Toronto, Ontario, Canada.
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Affiliation(s)
- Sukrti Nagpal
- Royal Surrey County Hospital, Guildford, Surrey, United Kingdom.
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49
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Affiliation(s)
- Allen G P Ross
- Griffith Health Institute, Griffith University, Gold Coast, QLD, Australia.
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50
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Thomas M, Arlet P, Aumaitre O, Cosserat J, Grosbois B, Guillevin L, Kettaneh A, Le Jeunne C, Massot C, Morlat P. [100 essential drugs. An internal medicine approach]. Rev Med Interne 2013; 34:460-4. [PMID: 23643757 DOI: 10.1016/j.revmed.2012.12.018] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2012] [Accepted: 12/23/2012] [Indexed: 10/26/2022]
Abstract
PURPOSE Up to 4600 drugs in about 15,000 pharmaceutical forms are available in France which may be a source of misuse with increased occurrence of side effects and costs. While the World Health Organization is encouraging each developed country to work out its own list of essential drugs. The list provided in 2008 by the French Office for the safety of health products has had so far limited impact on practice, so it became obvious to a group of internists to work out a "wise list" of 100 essential medicines covering 95% of the disorders observed in France. METHODS In June 2011, 10 internists agreed to each provide a list of 100 essential medicines, according to individual experience. In December 2011, a meeting of the participants provided a list as initial consensus and mandated five among them to make proposals for those areas neglected by too many participants or in which needless dispersion of medicines was stated. After internet-facilitated exchanges, an additional list was validated in mild-January 2012. RESULTS Fifty-four drugs were included in the list of initial consensus (including nine selected by all 10 participants), and 46 in the additional list. So the final "wise list" included 100 drugs. In June 2012, 56 of these drugs were available as generics. This list was compared to those lists set out by five countries in the European Union. CONCLUSION Generating such a list is feasible. Undoubtedly still non-comprehensive, this list will benefit from the expertise of 14 general practitioners who are currently working out a similar list across France. The final list will be submitted for validation by the French associations of generalist teachers and Internists.
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Affiliation(s)
- M Thomas
- Faculté de médecine de Bobigny, université Paris 13, 74 rue Marcel-Cachin, Bobigny, France.
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