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Ohnishi K. Current status of parasitic diseases in Japan and request from a clinician to parasitologists. Parasitol Int 2024; 103:102952. [PMID: 39179199 DOI: 10.1016/j.parint.2024.102952] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2024] [Revised: 08/19/2024] [Accepted: 08/19/2024] [Indexed: 08/26/2024]
Abstract
In Japan, parasitic diseases are rare today, with the exception of amebiasis and anisakidosis. As a result, many Japanese clinicians have limited knowledge of parasitic diseases and do not consider them important. Parasitology departments in the schools of medicine in Japan have tended to be replaced or downsized, and the amount of time spent for the teaching of parasitology to undergraduate students has been shortened. However, even in Japan, patients with parasitic diseases visit clinics or hospitals. Medical students have to learn the diagnosis and basic treatment of parasitic diseases that could cause death or serious sequelae without proper treatment, and those which are relatively frequently encountered in Japan. It is also essential for the students to know the circumstances they should suspect parasitic diseases. There is nothing restricting a parasitologist from responding to questions and requests from clinicians regarding diagnosis and treatment; rather, it is in the best interest of patients with parasitic diseases to do so based on their professional knowledge.
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Affiliation(s)
- Kenji Ohnishi
- Department of Emergency Medical Science, Faculty of Medical Science, Suzuka University of Medical Science, 3500-3, Minamitamagaki, Suzuka, Mie Prefecture 513-8670, Japan.
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Kim HJ, Kim EJ, Choi JW, Kim YC, Lee HI, Shin HI. A Rare Case of Imported Cutaneous Leishmaniasis Caused by Leishmania infantum in the Republic of Korea, 2021. Trop Med Infect Dis 2023; 8:tropicalmed8040223. [PMID: 37104348 PMCID: PMC10142730 DOI: 10.3390/tropicalmed8040223] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Revised: 04/03/2023] [Accepted: 04/10/2023] [Indexed: 04/28/2023] Open
Abstract
Leishmaniasis is a neglected tropical disease and an infectious disease transmitted by sandflies that occurs worldwide. In the absence of physicians seeking to identify the causes of disease in non-endemic areas, appropriate diagnoses cannot be made, thereby hampering effective treatment. In this report, we examined a nodular lesion on a patient's chin by performing a biopsy and molecular analysis. The biopsy finding led to the identification of a Leishmania amastigote. On the basis of PCR analysis of the internal transcribed spacer 1 gene and 5.8 S ribosomal RNA with a subsequent BLAST search, we identified the causal organism as Leishmania infantum. The patient, who had visited Spain from 1 July to 31 August 2018, was accordingly diagnosed with cutaneous leishmaniasis and was administered liposomal amphotericin B, which successfully treated the skin lesion. Travel history plays an important role in the diagnosis of leishmaniasis, and physicians should bear in mind that travelers can also introduce diseases and pathogens to non-endemic areas. Identification of Leishmania at the species level will increase the efficacy of treatment.
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Affiliation(s)
- Hyun Jung Kim
- Division of Vectors and Parasitic Diseases, Korea Disease Control and Prevention Agency, Cheongju 28159, Republic of Korea
- Department of Medical Science and Infectious Biology, College of Medicine, Chungnam National University, Daejeon 35015, Republic of Korea
| | - Eun Jin Kim
- Department of Infectious Diseases, Ajou University Hospital, Suwon 16499, Republic of Korea
| | - Jee Woong Choi
- Department of Dermatology, Ajou University Hospital, Suwon 16499, Republic of Korea
| | - You Chan Kim
- Department of Dermatology, Ajou University Hospital, Suwon 16499, Republic of Korea
| | - Hee-Il Lee
- Division of Vectors and Parasitic Diseases, Korea Disease Control and Prevention Agency, Cheongju 28159, Republic of Korea
| | - Hyun-Il Shin
- Division of Vectors and Parasitic Diseases, Korea Disease Control and Prevention Agency, Cheongju 28159, Republic of Korea
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Nguengang RT, Tchegnitegni BT, Nono ECN, Bellier Tabekoueng G, Fongang YSF, Bankeu JJK, Chouna JR, Nkenfou CN, Fekam FB, Sewald N, Lenta BN. Constituents of the Stem Bark of Symphonia globulifera Linn. f. with Antileishmanial and Antibacterial Activities. Molecules 2023; 28:molecules28062473. [PMID: 36985446 PMCID: PMC10053230 DOI: 10.3390/molecules28062473] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Revised: 03/02/2023] [Accepted: 03/03/2023] [Indexed: 03/30/2023] Open
Abstract
The chemical investigation of the n-hexane fraction from the methanol extract of the stem bark of Symphonia globulifera Linn f., which displayed good in vitro activity against Leishmania donovani NR-48822 promastigotes (IC50 43.11 µg/mL), led to the isolation of three previously unreported polyprenylated benzophenones, guttiferone U (1), V (2)/W (3), and a new tocotrienol derivative named globuliferanol (4), along with 11 known compounds (5-15). Their structures were elucidated based on their NMR and MS data. Some isolated compounds were assessed for both their antileishmanial and cytotoxic activities against L. donovani and Vero cells, respectively. Guttiferone K (5) exhibited the best potency (IC50 3.30 μg/mL), but with low selectivity to Vero cells. The n-hexane fraction and some compounds were also assessed in vitro for their antibacterial activity against seven bacterial strains. All the samples exhibited moderate to potent antibacterial activity (MICs ≤ 15.6 µg/mL) against at least one of the tested strains.
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Affiliation(s)
- Ruland Tchuinkeu Nguengang
- Department of Organic Chemistry, Faculty of Science, University of Yaoundé I, Yaoundé P.O. Box 812, Cameroon
- Department of Chemistry, Higher Teacher Training College, University of Yaoundé I, Yaoundé P.O. Box 47, Cameroon
| | | | - Eric Carly Nono Nono
- Department of Organic Chemistry, Faculty of Science, University of Yaoundé I, Yaoundé P.O. Box 812, Cameroon
| | | | | | - Jean Jules Kezetas Bankeu
- Department of Chemistry, Faculty of Science, The University of Bamenda, Bambili P.O. Box 39, Cameroon
| | - Jean Rodolphe Chouna
- Department of Chemistry, Faculty of Science, University of Dschang, Dschang P.O. Box 67, Cameroon
| | - Céline Nguefeu Nkenfou
- Department of Biology, Higher Teacher Training College, University of Yaoundé I, Yaoundé P.O. Box 47, Cameroon
| | - Fabrice Boyom Fekam
- Antimicrobial & Biocontrol Agents Unit, Laboratory for Phytobiochemistry and Medicinal Plants Studies, Department of Biochemistry, University of Yaoundé I, Yaoundé P.O. Box 812, Cameroon
| | - Norbert Sewald
- Organic and Bioorganic Chemistry, Faculty of Chemistry, Bielefeld University, D-33501 Bielefeld, Germany
| | - Bruno Ndjakou Lenta
- Department of Chemistry, Higher Teacher Training College, University of Yaoundé I, Yaoundé P.O. Box 47, Cameroon
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Sikorska K, Gesing M, Olszański R, Roszko-Wysokińska A, Szostakowska B, Van Damme-Ostapowicz K. Misdiagnosis and inappropriate treatment of cutaneous leishmaniasis: a case report. Trop Dis Travel Med Vaccines 2022; 8:18. [PMID: 35909173 PMCID: PMC9341103 DOI: 10.1186/s40794-022-00175-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Accepted: 06/06/2022] [Indexed: 11/24/2022] Open
Abstract
Background Leishmaniasis is a widespread disease in tropical and subtropical countries, except for Australia and Oceania. In Poland, tourists, migrants and travellers from leishmaniasis-endemic countries may carry Leishmania. Case presentation We present a case of undiagnosed cutaneous leishmaniasis in a patient who received many weeks of inadequate antibiotic treatment. Ulceration in the right submandibular region was thought to be a purulent complication after laser surgery. Six weeks before the ulcer developed, the patient had visited the jungle (Guatemala). Cutaneous leishmaniasis was finally diagnosed after nine months based on a proper history and a polymerase chain reaction (PCR) assay. Treatment with antimony derivatives was administered. After three months, the ulcer healed but left a scar. Conclusion A lack of knowledge about tropical diseases among doctors and an incomplete medical history were the reasons for many weeks of erroneous treatment of cutaneous leishmaniasis with antibiotics. This is the first reported case of cutaneous leishmaniasis misdiagnosed as a complication after an aesthetic medical procedure.
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Non-Endemic Leishmaniases Reported Globally in Humans between 2000 and 2021—A Comprehensive Review. Pathogens 2022; 11:pathogens11080921. [PMID: 36015042 PMCID: PMC9415673 DOI: 10.3390/pathogens11080921] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Revised: 08/09/2022] [Accepted: 08/12/2022] [Indexed: 11/17/2022] Open
Abstract
Leishmaniases are human and animal parasitic diseases transmitted by phlebotomine sand flies. Globalization is an important driver of the burden and in the current dynamics of these diseases. A systematic review of articles published between 2000 and 2021 was conducted using the PubMed search engine to identify the epidemiology and clinical management of imported human leishmaniases as a fundamental step to better manage individual cases and traveler and migrant health from a global perspective. A total of 275 articles were selected, representing 10,341 human imported cases. Identified drivers of changing patterns in epidemiology include conflict and war, as well as host factors, such as immunosuppression, natural and iatrogenic. Leishmania species diversity associated with different clinical presentations implies diagnostic and treatment strategies often complex to select and apply, especially in non-endemic settings. Thus, diagnostic and management algorithms for medical clinical decision support are proposed. Increased surveillance of non-endemic cases, whether in vulnerable populations such as refugees/migrants and immunocompromised individuals or travelers, could improve individual health and mitigate the public health risk of introducing Leishmania species into new areas.
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