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Sharaf MS. Scabies vaccines: where we stand and challenges ahead. Parasitol Res 2024; 123:285. [PMID: 39046602 PMCID: PMC11269436 DOI: 10.1007/s00436-024-08298-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2024] [Accepted: 07/10/2024] [Indexed: 07/25/2024]
Abstract
Scabies is an itchy skin disease caused by the burrowing mite, Sarcoptes scabiei. During their lifespan, female mites invade the stratum corneum and create tunnels in which they reside, move, feed, deposit fecal pellets, and lay eggs. Globally, more than 200 million people are estimated to be affected by scabies annually. Currently, using scabicidal agents is the only approved method for treating scabies. However, resistance to commonly used agents such as permethrin and ivermectin has been observed in scabies mites. Therefore, the development of vaccines for scabies, either as a preventative measure or for treatment, is crucial to control such neglected diseases. Since the host could evolve a protective immune response that could prevent re-infestation by scabies mites, vaccine development is theoretically possible. This review aims to provide a comprehensive overview of the ongoing challenges regarding the currently available control measures for scabies. It also explores the promising path of scabies vaccine development, highlighting the current state of research and challenges that need to be addressed to develop new and innovative measures for both treating and preventing scabies infections.
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Affiliation(s)
- Mahmoud S Sharaf
- Parasitology Department, Faculty of Medicine, Tanta University, Tanta, Gharbia, Egypt.
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Bergamin G, Hudson J, Currie BJ, Mounsey KE. A systematic review of immunosuppressive risk factors and comorbidities associated with the development of crusted scabies. Int J Infect Dis 2024; 143:107036. [PMID: 38570134 DOI: 10.1016/j.ijid.2024.107036] [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: 02/20/2024] [Revised: 03/22/2024] [Accepted: 03/28/2024] [Indexed: 04/05/2024] Open
Abstract
OBJECTIVES Crusted scabies (CS, Norwegian scabies) is a severe form of scabies, characterized by hyper-infestation of Sarcoptes scabiei mites. CS is commonly associated with immunosuppression but is also reported in overtly immunocompetent individuals. We reviewed immunosuppressive risk factors and comorbidities associated with CS. METHODS The National Library of Medicine (PubMed) database was reviewed for patient case reports of CS from January 1998 to July 2023. Two authors screened records for eligibility, extracted data, and one critically appraised the quality of the studies. SYSTEMATIC REVIEW REGISTRATION PROSPERO CRD42023466126. RESULTS A total of 436 records were identified, of which 204 were included for systematic review. From these, 683 CS patients were included. CS impacted both genders equally. Adults (21-59 years) were more commonly affected (45.5%) compared to children (0-20 years, 21%). Corticosteroid use was the most prevalent immunosuppressive risk factor identified (27.7% of all cases). About 10.2% of reports were associated with HIV/AIDS, and 8.5% with HTLV-1 infection. 10.5% of patients were overtly immunocompetent with no known risk factors. Overall, 41 (6.0%) died, many subsequent to secondary bacteremia. CONCLUSION This study represents the first systematic review undertaken on immunosuppressive risk factors associated with CS. This provides insights into trends of immunosuppression and mechanisms of CS development.
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Affiliation(s)
- Gianni Bergamin
- School of Health, University of the Sunshine Coast, Queensland, Australia; School of Medicine and Dentistry, Griffith University, Birtinya, Queensland, Australia; Sunshine Coast Health Institute, Birtinya, Queensland, Australia
| | - Joshua Hudson
- School of Health, University of the Sunshine Coast, Queensland, Australia; School of Medicine and Dentistry, Griffith University, Birtinya, Queensland, Australia; Sunshine Coast Health Institute, Birtinya, Queensland, Australia
| | - Bart J Currie
- Global and Tropical Health Division, Menzies School of Health Research, Charles Darwin University, Darwin, Northern Territory, Australia; Department of Infectious Diseases, Division of Medicine, Royal Darwin Hospital, Darwin, Northern Territory, Australia
| | - Kate E Mounsey
- School of Health, University of the Sunshine Coast, Queensland, Australia; Sunshine Coast Health Institute, Birtinya, Queensland, Australia.
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Oser L, Midha A, Schlosser-Brandenburg J, Rausch S, Mugo RM, Kundik A, Elizalde-Velázquez LE, Adjah J, Musimbi ZD, Klopfleisch R, Helm CS, von Samson-Himmelstjerna G, Hartmann S, Ebner F. Ascaris suum infection in juvenile pigs elicits a local Th2 response in a setting of ongoing Th1 expansion. Front Immunol 2024; 15:1396446. [PMID: 38799456 PMCID: PMC11116563 DOI: 10.3389/fimmu.2024.1396446] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2024] [Accepted: 04/08/2024] [Indexed: 05/29/2024] Open
Abstract
Ascaris spp. undergo extensive migration within the body before establishing patent infections in the small intestinal tract of humans and pigs. However, whether larval migration is critical for inducing efficient type 2 responses remains poorly understood. Therefore, we investigated systemic versus local adaptive immune responses along the hepato-tracheal migration of Ascaris suum during primary, single infections in conventionally raised pigs. Neither the initial invasion of gut tissue nor migration through the liver resulted in discernable Th2 cell responses. In contrast, lung-stage larvae elicited a Th2-biased pulmonary response, which declined after the larvae had left the lungs. In the small intestine, we observed an accumulation of Th2 cells upon the arrival of fourth-stage larvae (L4) to the small intestinal lumen. In parallel, we noticed robust and increasing Th1 responses in circulation, migration-affected organs, and draining lymph nodes. Phenotypic analysis of CD4+ T cells specifically recognizing A. suum antigens in the circulation and lung tissue of infected pigs confirmed that the majority of Ascaris-specific T cells produced IL-4 (Th2) and, to a much lesser extent, IL-4/IFN-g (Th2/1 hybrids) or IFN-g alone (Th1). These data demonstrate that lung-stage but not the early liver-stage larvae lead to a locally restricted Th2 response. Significant Th2 cell accumulation in the small intestine occurs only when L4 complete the body migration. In addition, Th2 immunity seems to be hampered by the concurrent, nonspecific Th1 bias in growing pigs. Together, the late onset of Th2 immunity at the site of infection and the Th1-biased systemic immunity likely enable the establishment of intestinal infections by sufficiently large L4 stages and pre-adult worms, some of which resist expulsion mechanisms.
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Affiliation(s)
- Larissa Oser
- Centre for Infection Medicine, Department of Veterinary Medicine, Institute of Immunology, Freie Universität Berlin, Berlin, Germany
| | - Ankur Midha
- Centre for Infection Medicine, Department of Veterinary Medicine, Institute of Immunology, Freie Universität Berlin, Berlin, Germany
| | - Josephine Schlosser-Brandenburg
- Centre for Infection Medicine, Department of Veterinary Medicine, Institute of Immunology, Freie Universität Berlin, Berlin, Germany
| | - Sebastian Rausch
- Centre for Infection Medicine, Department of Veterinary Medicine, Institute of Immunology, Freie Universität Berlin, Berlin, Germany
| | - Robert M. Mugo
- Centre for Infection Medicine, Department of Veterinary Medicine, Institute of Immunology, Freie Universität Berlin, Berlin, Germany
| | - Arkadi Kundik
- Centre for Infection Medicine, Department of Veterinary Medicine, Institute of Immunology, Freie Universität Berlin, Berlin, Germany
| | - Luis E. Elizalde-Velázquez
- Centre for Infection Medicine, Department of Veterinary Medicine, Institute of Immunology, Freie Universität Berlin, Berlin, Germany
| | - Joshua Adjah
- Centre for Infection Medicine, Department of Veterinary Medicine, Institute of Immunology, Freie Universität Berlin, Berlin, Germany
| | - Zaneta D. Musimbi
- Centre for Infection Medicine, Department of Veterinary Medicine, Institute of Immunology, Freie Universität Berlin, Berlin, Germany
| | - Robert Klopfleisch
- Department of Veterinary Medicine, Institute of Veterinary Pathology, Freie Universität Berlin, Berlin, Germany
| | - Christina S. Helm
- Department of Veterinary Medicine, Institute for Parasitology and Tropical Veterinary Medicine, Freie Universität Berlin, Berlin, Germany
| | - Georg von Samson-Himmelstjerna
- Department of Veterinary Medicine, Institute for Parasitology and Tropical Veterinary Medicine, Freie Universität Berlin, Berlin, Germany
| | - Susanne Hartmann
- Centre for Infection Medicine, Department of Veterinary Medicine, Institute of Immunology, Freie Universität Berlin, Berlin, Germany
| | - Friederike Ebner
- Centre for Infection Medicine, Department of Veterinary Medicine, Institute of Immunology, Freie Universität Berlin, Berlin, Germany
- Infection Pathogenesis, School of Life Sciences, Technical University of Munich, Freising, Germany
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4
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Wu X, Yang F, Zhang R. Frequent Misdiagnosis of Scabies as Eczema in China: A Descriptive Study of 23 Cases. Int J Gen Med 2024; 17:1615-1623. [PMID: 38690199 PMCID: PMC11060170 DOI: 10.2147/ijgm.s458731] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2024] [Accepted: 04/10/2024] [Indexed: 05/02/2024] Open
Abstract
Objective To outline the clinical manifestations observed in patients with scabies misdiagnosed as generalized eczema, analyse the factors contributing to these misdiagnoses and explore potential reasons for the resurgence of scabies. Patients and Methods A retrospective analysis was performed to investigate the patients with scabies misdiagnosed as generalized eczema. Results We included 23 patients, with twelve (52.17%) being male and eleven (47.83%) female. The illness duration ranged from 0.5 to 7 months. Among all patients, 12 (52.17%) were residents of nursing homes, 5 (21.74%) were staff members of these facilities, 4 (17.39%) were caregivers of long-term hospitalized relatives, 1 (4.35%) was a construction worker, and 1 (4.35%) had a history of tourism. The rash predominantly affected the trunk and extremities, 12 patients (52.17%) are each involved the perineum and fingers webbings. The presentations included erythema, papules, and nodules. The main complaint of all patients was nocturnal itch. Under direct microscopy, 5 patients (21.74%) tested positive for scabies mites, and 3 (13.04%) showed histopathological features consistent with scabies. All patients were initially misdiagnosed with generalized eczema. Conclusion Over half of all patients diagnosed with scabies either resided or worked in long-term care facilities. The lack of awareness of scabies among medical staff in long-term care facilities readily led to frequent misdiagnosis. Comprehensive measures should be implemented urgently to strengthen disease management.
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Affiliation(s)
- Xumei Wu
- Department of Dermatology, Beijing Friendship Hospital, Capital Medical University, Beijing, People’s Republic of China
- Department of Dermatology, Beijing Children’s Hospital, Capital Medical University, National Center for Children’s Health, Beijing, People’s Republic of China
| | - Feifei Yang
- Department of Dermatology, Tongzhou Maternal & Child Health Hospital of Beijing, Beijing, People’s Republic of China
| | - Ruina Zhang
- Department of Dermatology, Beijing Friendship Hospital, Capital Medical University, Beijing, People’s Republic of China
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Nguyen HTG, Le HLH, Nguyen HV, Le HM, Vu HL, Inaoka PT, Tetsuo O, Ly QT, Espinoza JL. Exploring Blood Cell Count-Derived Ratios as Practical Diagnostic Tools for Scabies in Vulnerable Populations. J Pers Med 2024; 14:373. [PMID: 38673000 PMCID: PMC11050978 DOI: 10.3390/jpm14040373] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2024] [Revised: 03/15/2024] [Accepted: 03/28/2024] [Indexed: 04/28/2024] Open
Abstract
Scabies is a neglected tropical disease and represents a considerable global burden. Although consensus diagnostic criteria for scabies have been recently published, diagnosing scabies infestation remains challenging in clinical practice. We investigated the diagnostic utility of complete blood cell count (CBC) and CBC-derived ratios obtained at diagnosis in a set of 167 patients who are Vietnamese with confirmed scabies. These parameters were compared with those of patients with dermatophytosis (N = 800) and urticaria (N = 2023), two diseases frequent in Vietnam, which can present with similar skin manifestations to scabies and tend to pose a diagnostic challenge in vulnerable populations. Our analysis revealed that white blood cell, monocyte, and eosinophil counts were significantly higher among patients with scabies than the other two diseases. Similarly, the monocyte-to-lymphocyte ratio (MLR) and eosinophil-to-lymphocyte ratio (ELR) were significantly higher among patients with scabies. The optimal cut-off values to distinguish scabies from dermatophytosis and urticaria were 0.094 for ELR (sensitivity: 74.85%, specificity: 70.7%) and 0.295 for MLR (sensitivity: 52.69%, specificity: 73.54%). CBC, ELR, and MLR are low-cost and easily calculated parameters that may be helpful for the diagnosis of scabies.
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Affiliation(s)
- Hoang Thao Giang Nguyen
- Faculty of Health Sciences, Kanazawa University, Kanazawa 920-0942, Ishikawa, Japan; (H.T.G.N.); (P.T.I.)
| | - Ha Long Hai Le
- Department of Biochemistry, Hematology and Immunology, National Hospital of Dermatology and Venereology, Hanoi 100000, Vietnam
- Faculty of Medical Technology, Hanoi Medical University, Hanoi 116001, Vietnam;
| | - Hoang Viet Nguyen
- Faculty of Medical Technology, Hanoi Medical University, Hanoi 116001, Vietnam;
| | - Huyen My Le
- Department of Biochemistry, Hematology and Immunology, National Hospital of Dermatology and Venereology, Hanoi 100000, Vietnam
| | - Huy Luong Vu
- Department of Laser and Skin Care, National Hospital of Dermatology and Venereology, Hanoi 116001, Vietnam
| | - Pleiades T. Inaoka
- Faculty of Health Sciences, Kanazawa University, Kanazawa 920-0942, Ishikawa, Japan; (H.T.G.N.); (P.T.I.)
| | - Ota Tetsuo
- Faculty of Health Sciences, Kanazawa University, Kanazawa 920-0942, Ishikawa, Japan; (H.T.G.N.); (P.T.I.)
| | - Quoc Trung Ly
- Soctrang Hospital for Women and Children, Soc Trang 950000, Vietnam;
| | - J. Luis Espinoza
- Faculty of Health Sciences, Kanazawa University, Kanazawa 920-0942, Ishikawa, Japan; (H.T.G.N.); (P.T.I.)
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Sharaf MS, Othman AA, Abdel-Ghaffar AE, Ali DM, Eid MM. Crusted scabies in a rabbit model: a severe skin disease or more? Parasit Vectors 2023; 16:413. [PMID: 37964301 PMCID: PMC10647032 DOI: 10.1186/s13071-023-05995-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Accepted: 10/04/2023] [Indexed: 11/16/2023] Open
Abstract
BACKGROUND Around 200-300 million people are estimated to be affected by scabies annually worldwide. However, the mechanisms by which this disease may affect the general condition of the host are not entirely clear. The aim of the present study was to evaluate the systemic changes that may accompany crusted scabies in both treated and non-treated experimental animals. METHODS Male New Zealand rabbits were infected with Sarcoptes scabiei var. cuniculi and divided into the following three groups: control, ivermectin-treated, and fluralaner-treated. Several methods were used to evaluate the systemic changes, including histopathological examination of the liver, kidney, heart, and spleen, as well as the measurement of serum biochemical parameters and immunological parameters. RESULTS Several definite structural and functional changes at the systemic level were revealed, as evidenced by the observed histopathological changes in the tissue sections of internal organs and the highly significant increases in markers of systemic inflammation, serum procalcitonin, and oxidative stress markers. Abnormalities in the liver and renal function results, as well as in the serum lipid profile, were also noted. Additionally, a disorganized immune response was noted, evidenced by a mixed type 1 and type 2 helper T cell response. Although there was notable clinical and parasitological cure in the ivermectin-treated group, the histopathological, biochemical, and immunological markers indicated incomplete resolution. In contrast, the fluralaner-treated group exhibited a nearly complete resolution of changes in these parameters. CONCLUSIONS We conclude that crusted scabies is a systemic syndrome that can affect several organs besides the skin. Inflammation, oxidative stress, and possibly bacterial infections, are all implicated as underlying mechanisms of tissue damage due to the disease. We recommend that fluralaner, a promising scabicidal agent, should be studied for possible human use, and especially for control programs.
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Affiliation(s)
| | - Ahmad Ali Othman
- Parasitology Department, Faculty of Medicine, Tanta University, Tanta, Egypt
| | | | - Dareen Mohamed Ali
- Pathology Department, Faculty of Medicine, Tanta University, Tanta, Egypt
| | - Mohamed Mahmoud Eid
- Parasitology Department, Faculty of Medicine, Tanta University, Tanta, Egypt
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Stepanova H, Scheirichova M, Matiasovic J, Hlavova K, Sinkora M, Stepanova K, Faldyna M. Interleukin-17 producing cells in swine induced by microbiota during the early postnatal period - a brief research report. Front Immunol 2023; 14:1214444. [PMID: 37799720 PMCID: PMC10548118 DOI: 10.3389/fimmu.2023.1214444] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2023] [Accepted: 09/04/2023] [Indexed: 10/07/2023] Open
Abstract
Interleukin-17A (IL-17) is a pro-inflammatory cytokine involved in the immune response to many pathogens playing also a role in certain chronic and autoimmune diseases. The presented study focused on the early postnatal development of IL-17 producing cells in swine. In agreement with previous studies, αβ T-helper (CD3+CD4+) and γδ T (CD3+TCRγδ+) cells were found to be the major producers of IL-17. In newborn conventional piglets, αβ T-helper cells positive for IL-17 were almost undetectable, but their frequency increased markedly with age in all issues examined, i.e., blood, spleen, and mesenteric lymph nodes (MLN). Additional analyses of CD8 and CD27 expression showed that the main αβ T-helper producers of IL-17 has CD8+CD27- phenotype in all tissues. IL-17 positive CD8+CD27+ αβ T-helper subpopulation was found only in blood and spleen. The production of IL17 in CD8-CD27+ αβ T-helper cells was always minor. In contrast, γδ T cells positive for IL-17 did not show a similar age-dependent increase in blood and spleen, whereas they increased in MLN. Because of the age-dependent increase in conventional animals, we included a comparison with germ-free piglets to show that the increase in IL-17 positive cells was clearly depended on the presence of the microbiota as the production in germ-free animals was negligible without any age-dependent increase.
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Affiliation(s)
- Hana Stepanova
- Department of Infectious Diseases and Preventive Medicine, Veterinary Research Institute, Brno, Czechia
| | - Marketa Scheirichova
- Department of Infectious Diseases and Preventive Medicine, Veterinary Research Institute, Brno, Czechia
| | - Jan Matiasovic
- Department of Infectious Diseases and Preventive Medicine, Veterinary Research Institute, Brno, Czechia
| | - Karolina Hlavova
- Department of Infectious Diseases and Preventive Medicine, Veterinary Research Institute, Brno, Czechia
| | - Marek Sinkora
- Laboratory of Gnotobiology, Institute of Microbiology of the Czech Academy of Sciences, Novy Hradek, Czechia
| | - Katerina Stepanova
- Laboratory of Gnotobiology, Institute of Microbiology of the Czech Academy of Sciences, Novy Hradek, Czechia
| | - Martin Faldyna
- Department of Infectious Diseases and Preventive Medicine, Veterinary Research Institute, Brno, Czechia
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8
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He R, Zhang Q, Xu L, Guo M, Gu X, Xie Y, Xu J, Shen Z. Characterization of a novel galectin in Sarcoptes scabiei and its role in regulating macrophage functions. Front Microbiol 2023; 14:1251475. [PMID: 37692380 PMCID: PMC10484005 DOI: 10.3389/fmicb.2023.1251475] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2023] [Accepted: 08/03/2023] [Indexed: 09/12/2023] Open
Abstract
Sarcoptes scabiei (S. scabiei) endangers human and other mammalian health. There has been limited research into S. scabiei pathogenic mechanisms and the immunological interaction between S. scabiei and hosts. Galectins have critical roles in biological processes such as cell adhesion, signal transduction, and immune response mediation. Galectins of S. scabiei (SsGalectins) were cloned, expressed, and identified, and their transcriptional levels in S. scabiei were measured at various developmental stages. Fluorescent tissue localization was performed on SsGalectins of S. scabiei and scabies skin. A mouse AD model was constructed to evaluate the effect of rSsGalectins on skin pathogenic changes. Quantitative polymerase chain reaction and enzyme-linked immunoassay were used to identify macrophage polarization-related components and investigate the immunoregulatory effect of rSsGalectins on mouse macrophages. The results demonstrated that the S. scabiei infection causes macrophage infiltration in the scabies skin. The rSsGalectins displayed strong reactogenicity, and distinct genes of the SsGalectins were differently expressed in different developmental stages of S. scabiei. Fluorescence tissue localization revealed that the SsGalectins were mainly in the mouthparts, intestines, and body surface. Additionally, S. scabiei could secrete SsGalectins into the infected skin, proving that SsGalectins were excretion and secretion proteins of S. scabiei. In the mouse atopic dermatitis model, cutaneous macrophage infiltration and inflammation increase after rSsGalectins injection. Simultaneously, when rSsGalectins acted on bone marrow-derived macrophages, M1 macrophage-related polarization factors IL-1β, IL-6, and inducible nitric oxide synthase all increased, demonstrating that rSsGalectins can induce M1 polarization and produce pro-inflammatory cytokines. In conclusion, the SsGalectins are involved in the pathogenic process of S. scabiei by regulating the polarization of host macrophages to the M1 type when S. scabiei invade the host and promoting the incidence and development of the host's inflammatory response. This study offers fresh light on the pathogenic process of scabies mites, investigates the immunological interaction mechanism between S. scabiei and the host, and offers new insights into S. scabiei prevention and therapy.
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Affiliation(s)
- Ran He
- Department of Parasitology, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
| | - Qian Zhang
- Department of Parasitology, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
| | - Luyang Xu
- Department of Parasitology, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
| | - Maochuan Guo
- Department of Parasitology, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
| | - Xiaobin Gu
- Department of Parasitology, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
| | - Yue Xie
- Department of Parasitology, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
| | - Jing Xu
- Department of Parasitology, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
| | - Zhaoli Shen
- College of Science, Sichuan Agricultural University, Ya'an, China
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Valldeperes M, Granados JE, Pérez V, López-Olvera JR, Ráez-Bravo A, Fandos P, Pérez JM, Mentaberre G, Tampach S, Soriguer RC, Espinosa J. The local skin cellular immune response determines the clinical outcome of sarcoptic mange in Iberian ibex ( Capra pyrenaica). Front Vet Sci 2023; 10:1183304. [PMID: 37323847 PMCID: PMC10267361 DOI: 10.3389/fvets.2023.1183304] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Accepted: 04/28/2023] [Indexed: 06/17/2023] Open
Abstract
Introduction Sarcoptic mange, caused by Sarcoptes scabiei, is a disease with implications for wildlife conservation and management. Its severity depends on the host's local skin immune response, which is largely unknown in Iberian ibex (Capra pyrenaica), a mountain ungulate dramatically affected by mange. In this species, the clinical outcome of sarcoptic mange varies among individuals, and the local immune response could be key to controlling the infestation. This study aims to characterize the local cellular immune response and its relationship with the clinical outcome. Methods Fourteen Iberian ibexes were experimentally infested with S. scabiei and six more served as controls. Clinical signs were monitored, and skin biopsies were collected from the withers at 26, 46, and 103 days post-infection (dpi). The presence and distribution of macrophages (including M1 and M2 phenotypes), T lymphocytes, B lymphocytes, plasma cells, and interleukine 10 were quantitatively evaluated using immunohistochemical techniques. Results An inflammatory infiltrate that decreased significantly from 26 to 103 dpi was observed in all the infested ibexes. The predominant inflammatory cell population in the skin of the mangy ibexes was formed by macrophages (mainly the M2 phenotype) followed by T lymphocytes, with lower numbers of B lymphocytes and plasma cells. Three clinical courses were identified: total recovery, partial recovery, and terminal stage. The inflammatory infiltrates were less pronounced in the fully recovered ibexes than in those that progressed to the terminal stage throughout the study. Discussion The results suggest an exacerbated but effective Th1-type cellular immune response controlling mange in Iberian ibex. Furthermore, the local immune response appears to determine the variability of the clinical responses to S. scabiei infestation in this species. This first report on the progression of local skin immune cells is relevant not only for individuals but also for population management and conservation.
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Affiliation(s)
- Marta Valldeperes
- Wildlife Ecology and Health Group (WE&H), Universitat Autònoma de Barcelona (UAB), Barcelona, Spain
- Departament de Medicina i Cirurgia Animals, Servei d’Ecopatologia de Fauna Salvatge (SEFaS), Universitat Autònoma de Barcelona (UAB), Barcelona, Spain
| | - José Enrique Granados
- Wildlife Ecology and Health Group (WE&H), Universitat Autònoma de Barcelona (UAB), Barcelona, Spain
- Parque Nacional y Parque Natural de Sierra Nevada, Granada, Spain
| | - Valentín Pérez
- Department of Animal Health-Instituto de Ganadería de Montaña (IGM), ULe-CSIC León, León, Spain
- Faculty of Veterinary Science, University of León, León, Spain
| | - Jorge Ramón López-Olvera
- Wildlife Ecology and Health Group (WE&H), Universitat Autònoma de Barcelona (UAB), Barcelona, Spain
- Departament de Medicina i Cirurgia Animals, Servei d’Ecopatologia de Fauna Salvatge (SEFaS), Universitat Autònoma de Barcelona (UAB), Barcelona, Spain
| | - Arián Ráez-Bravo
- Wildlife Ecology and Health Group (WE&H), Universitat Autònoma de Barcelona (UAB), Barcelona, Spain
- Departament de Medicina i Cirurgia Animals, Servei d’Ecopatologia de Fauna Salvatge (SEFaS), Universitat Autònoma de Barcelona (UAB), Barcelona, Spain
| | | | - Jesús M. Pérez
- Wildlife Ecology and Health Group (WE&H), Universitat Autònoma de Barcelona (UAB), Barcelona, Spain
- Department of Animal and Plant Biology, and Ecology, Jaén University, Campus Las Lagunillas, Jaén, Spain
| | - Gregorio Mentaberre
- Wildlife Ecology and Health Group (WE&H), Universitat Autònoma de Barcelona (UAB), Barcelona, Spain
- Departament de Ciència Animal, Universitat de Lleida (UdL), Lleida, Spain
| | - Stefania Tampach
- Wildlife Ecology and Health Group (WE&H), Universitat Autònoma de Barcelona (UAB), Barcelona, Spain
- Departament de Medicina i Cirurgia Animals, Servei d’Ecopatologia de Fauna Salvatge (SEFaS), Universitat Autònoma de Barcelona (UAB), Barcelona, Spain
| | | | - José Espinosa
- Department of Animal Health-Instituto de Ganadería de Montaña (IGM), ULe-CSIC León, León, Spain
- Faculty of Veterinary Science, University of León, León, Spain
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10
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Skayem C, Majda A, Gary C, Hemery F, Mahé E, Caux F, Dupin N, Senet P, Greder-Belan A, Hillion B, Meni C, Saiag P, Bellaud G, Bleibtreu A, Lariven S, Bollens D, Descamps V, Molina JM, Bouchaud O, Vittecoq D, Do-Pham G, Foulet F, Botterel F, Chosidow O, Bernigaud C. Severe Scabies: A French Multi-centre Study Involving 95 Patients with Crusted and Profuse Disease and Review of the Literature. Acta Derm Venereol 2023; 103:adv00878. [PMID: 36861856 PMCID: PMC9993169 DOI: 10.2340/actadv.v103.5351] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Accepted: 02/01/2023] [Indexed: 03/03/2023] Open
Abstract
The aim of this multi-centre French retrospective study was to identify severe, i.e. crusted and profuse, scabies patients. Records were retrieved from 22 Dermatology or Infectious Diseases departments in the Ile-de-France from January 2009 to January 2015 to characterize epidemiology, demography, diagnosis, contributing factors, treatment features, and outcomes in severe scabies. A total of 95 inpatients (57 crusted and 38 profuse) were included. A higher number of cases was observed among elderly patients (>75 years), mostly living in institutions. Thirteen patients (13.6%) reported a history of previously treated scabies. Sixty-three patients (66.3%) had been seen by a previous practitioner for the current episode (up to 8 previous visits). Initial misdiagnosis (e.g. eczema, prurigo, drug-related eruptions, psoriasis) was documented in 41 patients (43.1%). Fifty-eight patients (61%) had already received 1 or more previous treatments for their current episode. Forty percent received corticosteroids or acitretin for an initial diagnosis of eczema or psoriasis. Median time from the onset of symptoms to the diagnosis of severe scabies was 3 months (range 0.3-22). Itch was present in all patients at diagnosis. Most patients (n=84, 88.4%) had comorbidities. Diagnostic and therapeutic approaches varied. Complications occurred in 11.5% of cases. To date, there is no consensus for diagnosis and treatment, and future standardization of is required for optimal management.
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Affiliation(s)
- Charbel Skayem
- Dermatology Department, Assistance Publique des Hôpitaux de Paris (AP-HP), Hôpital Henri-Mondor, Créteil, France.
| | - Askour Majda
- Dermatology Department, Assistance Publique des Hôpitaux de Paris (AP-HP), Hôpital Henri-Mondor, Créteil, France
| | - Charlotte Gary
- Dermatology Department, Assistance Publique des Hôpitaux de Paris (AP-HP), Hôpital Henri-Mondor, Créteil, France
| | - Francois Hemery
- Service d'Information Médicale, DSIGHM, APHP, Hôpital Henri-Mondor, Créteil, France
| | - Emmanuel Mahé
- Dermatology Department, Centre Hospitalier Victor Dupouy, Argenteuil, France
| | - Frederic Caux
- Dermatology Department, APHP, Hôpital Avicenne, Bobigny, France
| | - Nicolas Dupin
- Dermatology Department, APHP, Hôpital Cochin, Pavillon Tarnier, Paris, France
| | - Patricia Senet
- Dermatology Department, APHP, Hôpital Tenon, Sorbonne Université, Paris, France
| | - Alix Greder-Belan
- Service de Médecine Interne et Unité de Maladies Infectieuses et Tropicales, Centre Hospitalier de Versailles, Hôpital Mignot, Le Chesnay, France
| | - Brigitte Hillion
- Dermatology Department, Centre Hospitalier Marne la Vallée, Jossigny, France
| | - Cecile Meni
- Dermatology Department, APHP, Hôpital Necker-Enfants malades, Paris, France
| | - Philippe Saiag
- Dermatology Department, APHP, Hôpital Ambroise Paré, Boulogne-Billancourt, France
| | - Guillaume Bellaud
- Infectious Diseases Department, APHP, Hôpital Tenon, Hôpitaux Universitaires Paris-Est, Paris, France
| | - Alexandre Bleibtreu
- Infectious Diseases Department, APHP, Hôpital Bichat Claude Bernard, Paris, France
| | - Sylvie Lariven
- Infectious Diseases Department, APHP, Hôpital Bichat Claude Bernard, Paris, France
| | - Diane Bollens
- Infectious Diseases Department, APHP, Hôpital Saint-Antoine, Paris, France
| | - Vincent Descamps
- Dermatology Department, APHP, Hôpital Bichat Claude Bernard, Paris, France
| | - Jean-Michel Molina
- Infectious Diseases Department, APHP, Hôpital Saint-Louis, Paris, France
| | - Olivier Bouchaud
- Infectious Diseases Department, APHP, Hôpital Avicenne, Bobigny, France
| | - Daniel Vittecoq
- Infectious Diseases Department, APHP, CHU Bicêtre, Le Kremlin Bicêtre, France
| | - Gia Do-Pham
- Service de Médecine Interne, Centre Hospitalier Intercommunal de Créteil, Créteil, France
| | - Francoise Foulet
- Research Group Dynamic, EA7380, Faculté de Santé de Créteil, Ecole Nationale Vétérinaire d'Alfort, USC ANSES, Université Paris-Est Créteil, Créteil, France
| | - Francoise Botterel
- Research Group Dynamic, EA7380, Faculté de Santé de Créteil, Ecole Nationale Vétérinaire d'Alfort, USC ANSES, Université Paris-Est Créteil, Créteil, France
| | - Olivier Chosidow
- Dermatology Department, Assistance Publique des Hôpitaux de Paris (AP-HP), Hôpital Henri-Mondor, Créteil, France
| | - Charlotte Bernigaud
- Dermatology Department, Assistance Publique des Hôpitaux de Paris (AP-HP), Hôpital Henri-Mondor, Créteil, France.
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11
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Guan K, Xu J, Gu X, He R, Xie Y, Jing B, Peng X, Yang G. Artificial Infestation of Sarcoptes scabiei (Acari: Sarcoptidae) in Rabbits Exhibits Progressive Pathological Changes, Apoptosis, and Keratinization in the Skin. Int J Mol Sci 2023; 24:ijms24032187. [PMID: 36768507 PMCID: PMC9917239 DOI: 10.3390/ijms24032187] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Revised: 01/14/2023] [Accepted: 01/17/2023] [Indexed: 01/24/2023] Open
Abstract
Sarcoptes scabiei (S. scabiei) is an ectoparasite that can infest humans and 150 mammalian host species, primarily causing pruritus, crust, and alopecia. However, neither the pathological process of host skin under S. scabiei infection nor the mechanism of S. scabiei infection in regulating apoptosis and keratinization of host skin has been studied yet. In this study, a total of 56 rabbits were artificially infested with S. scabiei, and the skin samples were collected at seven different time points, including 6 h, 12 h, day 1, day 3, 1 week, 4 weeks, and 8 weeks, whereas a group of eight rabbits served as controls. We measured epidermal thickness by H&E staining, observed the skin ultrastructure by electron microscopy, and detected the degree of skin apoptosis by TUNEL staining. The level of transcription of genes related to apoptosis and keratinization was detected by quantitative real-time PCR (qRT-PCR), and the level of Bcl-2 protein expression was further detected using immunohistochemistry. Our results showed that, with increased infestation time, the epidermal layer of the rabbit skin exhibited significant thickening and keratinization, swollen mitochondria in the epidermal cells, and increased skin apoptosis. The level of caspase-1, 3, 8, 10, 14, and Bcl-2 mRNA expression was increased, whereas the level of keratin 1 and 5 was decreased after S. scabiei infestation. In conclusion, S. scabiei infestation causes thickening of the epidermis, which may be related to apoptosis-induced proliferation and skin keratinization.
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Affiliation(s)
- Ke Guan
- Department of Parasitology, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu 611130, China
| | - Jing Xu
- Department of Parasitology, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu 611130, China
- Correspondence: (J.X.); (G.Y.)
| | - Xiaobin Gu
- Department of Parasitology, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu 611130, China
| | - Ran He
- Department of Parasitology, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu 611130, China
| | - Yue Xie
- Department of Parasitology, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu 611130, China
| | - Bo Jing
- Department of Parasitology, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu 611130, China
| | - Xuerong Peng
- Department of Chemistry, College of Life and Basic Science, Sichuan Agricultural University, Chengdu 611130, China
| | - Guangyou Yang
- Department of Parasitology, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu 611130, China
- Correspondence: (J.X.); (G.Y.)
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12
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Mounsey KE. Commentary: Transcriptome analysis of host inflammatory responses to the ectoparasitic mite Sarcoptes scabiei var. hominis. Front Immunol 2023; 14:1128688. [PMID: 36875118 PMCID: PMC9977290 DOI: 10.3389/fimmu.2023.1128688] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Accepted: 02/06/2023] [Indexed: 02/17/2023] Open
Affiliation(s)
- Kate E Mounsey
- School of Health, University of the Sunshine Coast, Maroochydore, QLD, Australia.,Sunshine Coast Health Institute, Birtinya, QLD, Australia
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13
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Ollech A, Simon AJ, Lev A, Stauber T, Sherman G, Solomon M, Barzilai A, Somech R, Greenberger S. A horse or a zebra? Unusual manifestations of common cutaneous infections in primary immunodeficiency pediatric patients. Front Pediatr 2023; 11:1103726. [PMID: 36950172 PMCID: PMC10026180 DOI: 10.3389/fped.2023.1103726] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/20/2022] [Accepted: 01/09/2023] [Indexed: 03/24/2023] Open
Abstract
Background Patients with primary immunodeficiency disorders (PIDs) often suffer from recurrent infections because of their inappropriate immune response to both common and less common pathogens. These patients may present with unique and severe cutaneous infectious manifestations that are not common in healthy individuals and may be more challenging to diagnose and treat. Objective To describe a cohort of patients with PIDs with atypical presentations of skin infections, who posed a diagnostic and/or therapeutic challenge. Methods This is a retrospective study of pediatric patients with PID with atypical presentations of infections, who were treated at the immunodeficiency specialty clinic and the pediatric dermatology clinic at the Sheba Medical Center between September 2012 and August 2022. Epidemiologic data, PID diagnosis, infectious etiology, presentation, course, and treatment were recorded. Results Eight children with a diagnosis of PID were included, five of whom were boys. The average age at PID diagnosis was 1.7 (±SD 3.2) years. The average age of cutaneous infection was 6.9 (±SD 5.9) years. Three patients were born to consanguineous parents. The PIDs included the following: common variable immunodeficiency, severe combined immunodeficiency, DOCK8 deficiency, ataxia telangiectasia, CARD11 deficiency, MALT1 deficiency, chronic granulomatous disease, and a combined cellular and humoral immunodeficiency syndrome of unknown etiology. The infections included the following: ulcerative-hemorrhagic varicella-zoster virus (two cases) atypical fungal and bacterial infections, resistant Norwegian scabies, giant perianal verrucae (two cases), and diffuse molluscum contagiosum. Conclusions In this case series, we present unusual manifestations of infectious skin diseases in pediatric patients with PID. In some of the cases, recognition of the infectious process prompted life-saving treatment. Increasing familiarity with these dermatological manifestations, as well as keeping a high index of suspicion, is important to enabling early diagnosis of cutaneous infections in PIDs and initiation of prompt suitable treatment.
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Affiliation(s)
- Ayelet Ollech
- Department of Dermatology, Pediatric Dermatology Service, Sheba Medical Center, Tel-Hashomer, Ramat-Gan, Israel
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
- Correspondence: Ayelet Ollech
| | - Amos J Simon
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
- Sheba Cancer Research Center and Institute of Hematology, Sheba Medical Center, Tel-Hashomer, Ramat-Gan, Israel
- Pediatric Department A and the Immunology Service, Jeffrey Modell Foundation Center, Edmond and Lily Safra Children's Hospital, Sheba Medical Center, Tel-Hashomer, Ramat-Gan, Israel
| | - Atar Lev
- Sheba Cancer Research Center and Institute of Hematology, Sheba Medical Center, Tel-Hashomer, Ramat-Gan, Israel
| | - Tali Stauber
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
- Sheba Cancer Research Center and Institute of Hematology, Sheba Medical Center, Tel-Hashomer, Ramat-Gan, Israel
| | - Gilad Sherman
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
- Pediatric Infectious Disease Unit, Edmond and Lily Safra Children's Hospital, Sheba Medical Center, Tel-Hashomer, Ramat-Gan, Israel
| | - Michal Solomon
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
- Department of Dermatology, Sheba Medical Center, Tel-Hashomer, Ramat-Gan, Israel
| | - Aviv Barzilai
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
- Department of Dermatology, Sheba Medical Center, Tel-Hashomer, Ramat-Gan, Israel
| | - Raz Somech
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
- Sheba Cancer Research Center and Institute of Hematology, Sheba Medical Center, Tel-Hashomer, Ramat-Gan, Israel
- Pediatric Department A and the Immunology Service, Jeffrey Modell Foundation Center, Edmond and Lily Safra Children's Hospital, Sheba Medical Center, Tel-Hashomer, Ramat-Gan, Israel
| | - Shoshana Greenberger
- Department of Dermatology, Pediatric Dermatology Service, Sheba Medical Center, Tel-Hashomer, Ramat-Gan, Israel
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
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14
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Gazi U, Taylan-Ozkan A, Mumcuoglu KY. Immune mechanisms in human Sarcoptes scabiei (Acari: Sarcoptidae) infestations. Parasite Immunol 2021; 44:e12900. [PMID: 34923637 DOI: 10.1111/pim.12900] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2021] [Revised: 12/14/2021] [Accepted: 12/15/2021] [Indexed: 11/29/2022]
Abstract
Scabies is a parasitic infestation of human and animal skin caused by different strains of the itch mite, Sarcoptes scabiei. The World Health Organization (WHO) has declared scabies in human as a neglected tropical disease, and today over 200 million people worldwide are affected. The two most commonly reported clinical manifestation of the condition are ordinary (OS) and crusted scabies (CS). CS, which can lead to fatal consequences due to secondary bacterial infections, is mostly observed in immunocompromised subjects but can also, although rarely, be detected in immunocompetent individuals. Innate and adaptive immune system components are involved in protection and pathogenesis of scabies, although with some differences between OS and CS. While the cutaneous immune response is dominated by CD4+ T-cells in OS, it is mainly mediated by CD8+ T-cells in CS. The two clinical conditions also differ in CD4+ T-cell-mediated immune responses with mixed TH 1/TH 2 (protective) and TH 2/TH 17 (non-protective) immunoprofiles in OS and CS, respectively. Moreover, the development of CS is associated with early immunosuppression that is followed by deleterious immune response to uncontrolled mite proliferation. However, the immune response to scabies still needs further attention due to inconsistent results in the literature. The aim of this study is to attract more attention to this area by summarizing the current literature on innate and adaptive immune responses triggered against S. scabiei mites.
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Affiliation(s)
- Umut Gazi
- Department of Medical Microbiology and Clinical Microbiology, Faculty of Medicine, Near East University, Nicosia, Cyprus
| | - Aysegul Taylan-Ozkan
- Department of Medical Microbiology, Faculty of Medicine, TOBB University of Economics and Technology, Ankara, Turkey
| | - Kosta Y Mumcuoglu
- Parasitology Unit, Department of Microbiology and Molecular Genetics, The Kuvin Center for the Study of Infectious and Tropical Diseases, The Hebrew University-Hadassah Medical School, Jerusalem, Israel
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15
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Does the epithelial barrier hypothesis explain the increase in allergy, autoimmunity and other chronic conditions? Nat Rev Immunol 2021; 21:739-751. [PMID: 33846604 DOI: 10.1038/s41577-021-00538-7] [Citation(s) in RCA: 413] [Impact Index Per Article: 137.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/10/2021] [Indexed: 02/07/2023]
Abstract
There has been a steep increase in allergic and autoimmune diseases, reaching epidemic proportions and now affecting more than one billion people worldwide. These diseases are more common in industrialized countries, and their prevalence continues to rise in developing countries in parallel to urbanization and industrialization. Intact skin and mucosal barriers are crucial for the maintenance of tissue homeostasis as they protect host tissues from infections, environmental toxins, pollutants and allergens. A defective epithelial barrier has been demonstrated in allergic and autoimmune conditions such as asthma, atopic dermatitis, allergic rhinitis, chronic rhinosinusitis, eosinophilic esophagitis, coeliac disease and inflammatory bowel disease. In addition, leakiness of the gut epithelium is also implicated in systemic autoimmune and metabolic conditions such as diabetes, obesity, multiple sclerosis, rheumatoid arthritis, systemic lupus erythematosus, ankylosing spondylitis and autoimmune hepatitis. Finally, distant inflammatory responses due to a 'leaky gut' and microbiome changes are suspected in Alzheimer disease, Parkinson disease, chronic depression and autism spectrum disorders. This article introduces an extended 'epithelial barrier hypothesis', which proposes that the increase in epithelial barrier-damaging agents linked to industrialization, urbanization and modern life underlies the rise in allergic, autoimmune and other chronic conditions. Furthermore, it discusses how the immune responses to dysbiotic microbiota that cross the damaged barrier may be involved in the development of these diseases.
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16
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Joshi V, Dimri U, Gopalakrishnan A, Bhanuprakash AG, Gupta VK. Porcine scabies induces marked apoptosis, increased pro-inflammatory cytokines IL-1, TNF-α and shedding of ICAM-1. Parasite Immunol 2021; 43:e12878. [PMID: 34559899 DOI: 10.1111/pim.12878] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2021] [Revised: 09/05/2021] [Accepted: 09/20/2021] [Indexed: 12/01/2022]
Abstract
BACKGROUND Scabies is one of the leading causes of morbidity in pigs worldwide. Limited data are available regarding the role of immune reactions in the development of porcine scabies. MATERIALS AND METHODS The aim of this study was to investigate key pro-inflammatory cytokines (IL-1, TNF-α), soluble variant of adhesion molecule ICAM-1 and mite-mediated apoptosis of peripheral leukocytes in 20 pigs with scabies, in addition to 10 healthy controls. The pigs with at least three typical clinical signs and found positive for Sarcoptes scabiei var. suis in microscopy were recruited for the present study. RESULTS IL-1 acted as the major pro-inflammatory cytokine as serum IL-1 concentrations showed significantly (p < .05) higher levels (7-fold increase) in cases than in controls. The minor cytokine TNF-α was 4-fold higher during scabies, and its mean serum concentration was significantly increased (p < .05) in cases when compared to healthy controls. Soluble ICAM-1 levels were significantly higher (p < .05) in all the pigs of infested group compared with the controls. The percentage of apoptotic and necrotic leukocytes was found to be significantly higher (p < .05) in scabies positive pigs as compared to the healthy controls. CONCLUSION It is concluded that systemic elevation in pro-inflammatory cytokines IL-1 and TNF-α, shedding of soluble ICAM-1 variant in peripheral blood and increased rate of host-cell apoptosis in peripheral leukocytes might be implicated in the immunopathology of naturally acquired porcine scabies.
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Affiliation(s)
- Vivek Joshi
- Division of Medicine, ICAR-Indian Veterinary Research Institute, Izatnagar, Bareilly, Uttar Pradesh, India.,Animal Health Section, ICAR-National Research Centre on Mithun, Medziphema, Dimapur, Nagaland, India
| | - Umesh Dimri
- Division of Medicine, ICAR-Indian Veterinary Research Institute, Izatnagar, Bareilly, Uttar Pradesh, India
| | - Arumugam Gopalakrishnan
- Division of Medicine, ICAR-Indian Veterinary Research Institute, Izatnagar, Bareilly, Uttar Pradesh, India.,Resident Veterinary Services Section, Madras Veterinary College, Chennai, Tamil Nadu, India
| | | | - Vinod Kumar Gupta
- Division of Medicine, ICAR-Indian Veterinary Research Institute, Izatnagar, Bareilly, Uttar Pradesh, India
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17
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Valldeperes M, Moroni B, Rossi L, López-Olvera JR, Velarde R, Molinar Min AR, Mentaberre G, Serrano E, Angelone S, Lavín S, Granados JE. First report of interspecific transmission of sarcoptic mange from Iberian ibex to wild boar. Parasit Vectors 2021; 14:481. [PMID: 34538252 PMCID: PMC8451136 DOI: 10.1186/s13071-021-04979-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Accepted: 08/26/2021] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND Sarcoptic mange is a globally distributed parasitic disease caused by the burrowing mite Sarcoptes scabiei. This mite has a certain degree of host specificity, although interspecific transmission can occur among phylogenetically related species or through prey-predator mediated exposure. In 2018, a wild boar (Sus scrofa) with lesions compatible with sarcoptic mange was hunted in Ports de Tortosa i Beseit Natural Park (PTB, north-eastern Spain), where an active epizootic outbreak of sarcoptic mange is affecting Iberian ibexes (Capra pyrenaica) since 2014. METHODS A complete necropsy, skin scrapings and skin digestions with hydroxide potassium were performed to confirm the diagnosis. Routine histopathological analysis, toluidine blue staining and immunohistochemistry were used to characterize the lesions and the inflammatory infiltrate. Finally, 10 specific S. scabiei microsatellites were molecularly genotyped through polymerase chain reactions in mites obtained from the affected wild boar. For phylogenetic comparison, mites obtained from sympatric Iberian ibexes and allopatric wild boars and Iberian ibexes from southern Spain were analysed. RESULTS Sarcoptes scabiei was visually and molecularly identified in the infested wild boar from PTB, causing skin lesions with dermal inflammatory infiltrate rich in T and B cells, which indicate an adaptive immune response. Three S. scabiei genetic clusters were identified: one included mites from southern Iberian ibexes, another included mites from southern wild boars, and a third one distinctively grouped the wild boar from PTB with the sympatric ibexes. CONCLUSIONS To the authors' knowledge, this is the first reported case of sarcoptic mange in wild boar in Spain and the first documented case of S. scabiei cross-transmission from a wild ruminant host to a wild boar. The wild boar presented an ordinary scabies type reaction, which is typical of the self-limiting infestations reported in other cases of interspecific transmission.
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Affiliation(s)
- Marta Valldeperes
- Wildlife Ecology & Health group (WE&H) and Servei d’Ecopatologia de Fauna Salvatge (SEFaS), Departament de Medicina i Cirurgia Animals, Universitat Autònoma de Barcelona (UAB), Bellaterra, Spain
| | - Barbara Moroni
- Dipartimento di Scienze Veterinarie, Universitá di Torino, Grugliasco, Turin, Italy
| | - Luca Rossi
- Dipartimento di Scienze Veterinarie, Universitá di Torino, Grugliasco, Turin, Italy
| | - Jorge Ramón López-Olvera
- Wildlife Ecology & Health group (WE&H) and Servei d’Ecopatologia de Fauna Salvatge (SEFaS), Departament de Medicina i Cirurgia Animals, Universitat Autònoma de Barcelona (UAB), Bellaterra, Spain
| | - Roser Velarde
- Wildlife Ecology & Health group (WE&H) and Servei d’Ecopatologia de Fauna Salvatge (SEFaS), Departament de Medicina i Cirurgia Animals, Universitat Autònoma de Barcelona (UAB), Bellaterra, Spain
| | | | - Gregorio Mentaberre
- Wildlife Ecology & Health group (WE&H) and Departament de Ciència Animal, Escola Tècnica Superior d’Enginyeria Agrària (ETSEA), Universitat de Lleida (UdL), Lleida, Spain
| | - Emmanuel Serrano
- Wildlife Ecology & Health group (WE&H) and Servei d’Ecopatologia de Fauna Salvatge (SEFaS), Departament de Medicina i Cirurgia Animals, Universitat Autònoma de Barcelona (UAB), Bellaterra, Spain
| | - Samer Angelone
- Institute of Evolutionary Biology and Environmental Studies (IEU), University of Zürich, Zürich, Switzerland
| | - Santiago Lavín
- Wildlife Ecology & Health group (WE&H) and Servei d’Ecopatologia de Fauna Salvatge (SEFaS), Departament de Medicina i Cirurgia Animals, Universitat Autònoma de Barcelona (UAB), Bellaterra, Spain
| | - José Enrique Granados
- Espacio Natural de Sierra Nevada and Wildlife Ecology & Health Group (WE&H), Pinos Genil, Granada, Spain
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18
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Teng Y, Xie W, Tao X, Liu N, Yu Y, Huang Y, Xu D, Fan Y. Infection-provoked psoriasis: Induced or aggravated (Review). Exp Ther Med 2021; 21:567. [PMID: 33850539 PMCID: PMC8027725 DOI: 10.3892/etm.2021.9999] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2020] [Accepted: 02/22/2021] [Indexed: 12/12/2022] Open
Abstract
Psoriasis is a common chronic, immune-mediated, inflammatory skin disorder, with a reported prevalence of 0.0-2.1% among children and 0.91-8.50% among adults, worldwide. Psoriasis is induced by several environmental factors, including infection, alcohol consumption, drugs, trauma, acute withdrawal of systemic or potent topical corticosteroids, body mass index and endocrine disorders. Increasing evidence suggest that a variety of microorganisms play key roles in the induction and exacerbation of psoriasis. Pathogens, such as streptococci and staphylococci are considered causal factors, presumably via superantigen activation of skin-seeking T cells. In addition, fungal pathogens, such as Candida and Malassezia, and viral agents, such as human immunodeficiency virus, hepatitis C virus infection and human papillomavirus, are also closely associated with psoriasis. Recently, several types of pathogens, such as Helicobacter pylori infection, Zika virus and scabies, have been reported to potentially trigger psoriasis. The present review discusses the underlying molecular mechanisms by which these infections influence psoriasis to provide a better understanding of the pathogenesis of psoriasis.
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Affiliation(s)
- Yan Teng
- Department of Dermatology, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, Hangzhou, Zhejiang 310014, P.R. China
| | - Wenqing Xie
- Department of Orthopaedics, Xiangya Hospital, Central South University, Changsha, Hunan 410008, P.R. China
| | - Xiaohua Tao
- Department of Dermatology, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, Hangzhou, Zhejiang 310014, P.R. China
| | - Na Liu
- Department of Dermatology, Bengbu Medical College, Bengbu, Anhui 233000, P.R. China
| | - Yong Yu
- Department of Dermatology, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, Hangzhou, Zhejiang 310014, P.R. China
| | - Youming Huang
- Department of Dermatology, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, Hangzhou, Zhejiang 310014, P.R. China
| | - Danfeng Xu
- Department of Dermatology, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, Hangzhou, Zhejiang 310014, P.R. China
| | - Yibin Fan
- Department of Dermatology, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, Hangzhou, Zhejiang 310014, P.R. China
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Garcovich S, Maurelli M, Gisondi P, Peris K, Yosipovitch G, Girolomoni G. Pruritus as a Distinctive Feature of Type 2 Inflammation. Vaccines (Basel) 2021; 9:vaccines9030303. [PMID: 33807098 PMCID: PMC8005108 DOI: 10.3390/vaccines9030303] [Citation(s) in RCA: 65] [Impact Index Per Article: 21.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Revised: 03/17/2021] [Accepted: 03/19/2021] [Indexed: 12/13/2022] Open
Abstract
Pruritus is a common symptom of several skin diseases, both inflammatory and neoplastic. Pruritus might have a tremendous impact on patients’ quality of life and strongly interfere with sleep, social, and work activities. We review the role of type-2 inflammation and immunity in the pathogenesis of chronic pruritic conditions of the skin. Type 2 cytokines, including IL-4, IL-13, thymic stromal lymphopoietin, periostin, IL-31, IL-25, and IL-33 are released by mast cells, innate lymphoid cells 2, keratinocytes, and type 2 T lymphocytes, and are master regulators of chronic itch. These cytokines might act as direct pruritogen on primary sensory neurons (pruriceptors) or alter the sensitivity to other itch mediators Type 2 inflammation- and immunity-dominated skin diseases, including atopic dermatitis, prurigo nodularis, bullous pemphigoid, scabies, parasitic diseases, urticaria, and Sézary syndrome are indeed conditions associated with most severe pruritus. In contrast, in other skin diseases, such as scleroderma, lupus erythematosus, hidradenitis suppurativa, and acne, type 2 inflammation is less represented, and pruritus is milder or variable. Th2 inflammation and immunity evolved to protect against parasites, and thus, the scratching response evoked by pruritus might have developed to alert about the presence and to remove parasites from the skin surface.
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Affiliation(s)
- Simone Garcovich
- Dermatology, Università Cattolica del Sacro Cuore, 00168 Rome, Italy;
- Dermatology Unit, Fondazione Policlinico Universitario A. Gemelli IRCCS, 00168 Rome, Italy
- Correspondence:
| | - Martina Maurelli
- Section of Dermatology and Venereology, Department of Medicine, University of Verona, 37126 Verona, Italy; (M.M.); (P.G.); (G.G.)
| | - Paolo Gisondi
- Section of Dermatology and Venereology, Department of Medicine, University of Verona, 37126 Verona, Italy; (M.M.); (P.G.); (G.G.)
| | - Ketty Peris
- Dermatology, Università Cattolica del Sacro Cuore, 00168 Rome, Italy;
- Dermatology Unit, Fondazione Policlinico Universitario A. Gemelli IRCCS, 00168 Rome, Italy
| | - Gil Yosipovitch
- Miami Itch Center, Dr. Phillip Frost Department of Dermatology and Cutaneous Surgery, Miller School of Medicine, University of Miami, Miami, FL 33136, USA;
| | - Giampiero Girolomoni
- Section of Dermatology and Venereology, Department of Medicine, University of Verona, 37126 Verona, Italy; (M.M.); (P.G.); (G.G.)
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Chen Z, Claerebout E, Chiers K, Pas M, Pardon B, van Mol W, Casaert S, De Wilde N, Duchateau L, Geldhof P. Dermal immune responses against Psoroptes ovis in two cattle breeds and effects of anti-inflammatory dexamethasone treatment on the development of psoroptic mange. Vet Res 2021; 52:1. [PMID: 33397469 PMCID: PMC7784294 DOI: 10.1186/s13567-020-00874-x] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2020] [Accepted: 12/03/2020] [Indexed: 11/29/2022] Open
Abstract
Psoroptic mange is a common disease of livestock, caused by Psoroptes ovis. Compared to Holstein–Friesian (HF) cattle, the Belgian Blue (BB) cattle breed is highly susceptible to the infestation. However, the mechanism for this difference is still unclear. To determine the factors responsible for this breed susceptibility, the immune response to P. ovis was studied in experimentally infested BB and HF cattle, using clinical signs, histology, immunohistochemical profiling and gene expression analysis of skin biopsies. The mite numbers and lesion area of BB cattle were greater than in HF during the whole study period. Significant influxes of eosinophils in the epidermis and dermis were detected in comparison with the pre-infestation samples in both breeds, with significantly higher eosinophils in BB at 6 weeks post infestation (wpi). Mast cell numbers were unaffected at all stages of infestation in HF, but were significantly elevated relative to pre-infestation in BB cattle at 2 and 6 wpi. The more pronounced cutaneous eosinophilia and higher IL-4 levels at 6 wpi in BB cattle suggest that a Th2-type immune response is underlying the higher susceptibility of the BB breed. In naturally infested BB cattle, development of the psoroptic mange lesions and eosinophils and CD3+ T cell areas were severely depressed after anti-inflammatory treatment with dexamethasone. Together, these results suggest that a stronger Th2-type immune response to P. ovis causes the skin lesions in psoroptic mange in BB cattle and that local anti-inflammatory treatment could potentially be an alternative to control the pathology caused by this parasite.
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Affiliation(s)
- Zhenzhen Chen
- Laboratory of Parasitology, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, 9820, Merelbeke, Belgium
| | - Edwin Claerebout
- Laboratory of Parasitology, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, 9820, Merelbeke, Belgium.
| | - Koen Chiers
- Department of Pathology, Bacteriology and Poultry Diseases, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, 9820, Merelbeke, Belgium
| | - Mathilde Pas
- Department of Large Animal Internal Medicine, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, 9820, Merelbeke, Belgium
| | - Bart Pardon
- Department of Large Animal Internal Medicine, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, 9820, Merelbeke, Belgium
| | - Wouter van Mol
- Laboratory of Parasitology, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, 9820, Merelbeke, Belgium
| | - Stijn Casaert
- Laboratory of Parasitology, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, 9820, Merelbeke, Belgium
| | - Nathalie De Wilde
- Laboratory of Parasitology, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, 9820, Merelbeke, Belgium
| | - Luc Duchateau
- Biometrics Research Center, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, 9820, Merelbeke, Belgium
| | - Peter Geldhof
- Laboratory of Parasitology, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, 9820, Merelbeke, Belgium
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Bhat SA, Walton SF, Ventura T, Liu X, McCarthy JS, Burgess STG, Mounsey KE. Early immune suppression leads to uncontrolled mite proliferation and potent host inflammatory responses in a porcine model of crusted versus ordinary scabies. PLoS Negl Trop Dis 2020; 14:e0008601. [PMID: 32886659 PMCID: PMC7508399 DOI: 10.1371/journal.pntd.0008601] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2019] [Revised: 09/22/2020] [Accepted: 07/14/2020] [Indexed: 12/12/2022] Open
Abstract
Scabies is a neglected tropical disease of global significance. Our understanding of host-parasite interactions has been limited, particularly in crusted scabies (CS), a severe clinical manifestation involving hyper-infestation of Sarcoptes scabiei mites. Susceptibility to CS may be associated with immunosuppressive conditions but CS has also been seen in cases with no identifiable risk factor or immune deficit. Due to ethical and logistical difficulties with undertaking research on clinical patients with CS, we adopted a porcine model which parallels human clinical manifestations. Transcriptomic analysis using microarrays was used to explore scabies pathogenesis, and to identify early events differentiating pigs with ordinary (OS) and crusted scabies. Pigs with OS (n = 4), CS (n = 4) and non-infested controls (n = 4) were compared at pre-infestation, weeks 1, 2, 4 and 8 post-infestation. In CS relative to OS, there were numerous differentially expressed genes including pro-inflammatory cytokines (IL17A, IL8, IL19, IL20 and OSM) and chemokines involved in immune cell activation and recruitment (CCL20, CCL27 and CXCL6). The influence of genes associated with immune regulation (CD274/PD-L1 and IL27), immune signalling (TLR2, TLR8) and antigen presentation (RFX5, HLA-5 and HLA-DOB) were highlighted in the early host response to CS. We observed similarities with gene expression profiles associated with psoriasis and atopic dermatitis and confirmed previous observations of Th2/17 pronounced responses in CS. This is the first comprehensive study describing transcriptional changes associated with the development of CS and significantly, the distinction between OS and CS. This provides a basis for clinical follow-up studies, potentially identifying new control strategies for this severely debilitating disease. The immune response to Sarcoptes scabiei infestation is poorly defined. There have been few studies of crusted scabies, a debilitating clinical variant of the disease characterised by extremely high mite numbers. In this study, we used a pig model to explore differences in gene expression between clinical variants of scabies, including a focus on immune events occurring prior to the development of clinical signs. In early infestation, genes relating to inflammation, immune recognition and cell migration were potently suppressed in pigs with crusted scabies. This suggests that these pigs lacked the ability to mount a timely, effective immune response, allowing mites to proliferate unchecked. In later infestation, the large numbers of mites then triggered a strong inflammatory response leading to severe skin pathology. Gene expression profiles in crusted scabies shared similarities with other inflammatory skin diseases such as psoriasis. This is the first study to compare immune responses in crusted and ordinary scabies in early infestation and reveals new insights into the progression of disease. Findings may lead to the development of new approaches to diagnose and treat this important, but neglected disease.
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Affiliation(s)
- Sajad A. Bhat
- School of Health & Sport Sciences, University of the Sunshine Coast, Sippy Downs, Queensland, Australia
- Animal and Bioscience Research Department, Teagasc, Grange, Ireland
| | - Shelley F. Walton
- School of Health & Sport Sciences, University of the Sunshine Coast, Sippy Downs, Queensland, Australia
| | - Tomer Ventura
- Genecology Research Centre, University of the Sunshine Coast, Sippy Downs, Queensland, Australia
| | - Xiaosong Liu
- School of Health & Sport Sciences, University of the Sunshine Coast, Sippy Downs, Queensland, Australia
- Cancer Research Institute, The First People’s Hospital of Foshan, Foshan, Guangdong, China
| | - James S. McCarthy
- Infectious Diseases Division, QIMR Berghofer Medical Research Institute, Brisbane, Queensland, Australia
| | - Stewart T. G. Burgess
- Diagnostics, Moredun Research Institute, Pentlands Science Park, Bush Loan, Edinburgh, United Kingdom
| | - Kate E. Mounsey
- School of Health & Sport Sciences, University of the Sunshine Coast, Sippy Downs, Queensland, Australia
- * E-mail:
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Sharaf M, Antonios S, Mina S, Eliwa K, Rayia DA. The scabicide effect of moxidectin in vitro and in experimental animals: Parasitological, histopathological and immunological evaluation. Exp Parasitol 2020; 217:107961. [PMID: 32777223 DOI: 10.1016/j.exppara.2020.107961] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2019] [Revised: 07/07/2020] [Accepted: 07/24/2020] [Indexed: 10/23/2022]
Abstract
Scabies is considered one of the commonest dermatological diseases that has a global health burden. Current treatment with ivermectin (IVM) is insufficient and potential drug resistance was noticed. Moxidectin (MOX), with a better pharmacological profile may be a promising alternative. The efficacy of moxidectin against Sarcoptes scabiei was assessed both in vitro and in vivo in comparison with ivermectin. For the in vitro assay, both drugs were used in two concentrations (50 μg/ml and 100 μg/ml). For the in vivo assay, twenty rabbits infected with Sarcoptes scabiei were divided into three groups: untreated, moxidectin-treated and ivermectin-treated with the same dose of 0.3 mg/kg once. Another four rabbits were used as a normal control non-infected group. Treatment efficacy was evaluated by clinical assessment, parasitological evaluation and histopathological examination of skin samples using Hematoxylin and eosin and toluidine blue for mast cell staining. Immune response was also assessed by immunohistochemical staining of CD3 T cells in skin samples. Our results showed that moxidectin had a high efficacy (100%) in killing mites when used in both concentrations (50 μg/ml, 100 μg/ml) in the in vitro assay. Concerning the in vivo assay, on day 14 post-treatment, all MOX-treated rabbits were mite-free with full clinical cure by the end of the study (D21) showing (100%) reduction of mites count. Also, marked improvement in the epidermis with absence of mites in skin samples were shown. Poor clinical and parasitological improvements were noted in the ivermectin-treated rabbits, when given as a single dose with a percentage reduction (60.67%) in the 2nd week and progressive increase in lesions and mites count in the 3rd week post-treatment. Regarding the immune response, MOX-treated group showed mild infiltration with both mast cells and CD3 T cells in comparison to severe infiltration with both types of cells in the untreated and IVM-treated group. On conclusion, our results demonstrated that a single dose of MOX was more effective than IVM, supporting MOX as a valuable therapeutic approach for scabies therapy.
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Affiliation(s)
- Mahmoud Sharaf
- Parasitology Department, Faculty of Medicine, Tanta University, Egypt
| | - Sanaa Antonios
- Parasitology Department, Faculty of Medicine, Tanta University, Egypt
| | - Samir Mina
- Histopathology Department, Faculty of Medicine, Tanta University, Egypt
| | - Kamal Eliwa
- Parasitology Department, Faculty of Medicine, Tanta University, Egypt
| | - Dina Abou Rayia
- Parasitology Department, Faculty of Medicine, Tanta University, Egypt.
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Senterre Y, Jouret G, Collins P, Nikkels AF. Risankizumab-Aggravated Crusted Scabies in a Patient with Down Syndrome. Dermatol Ther (Heidelb) 2020; 10:829-834. [PMID: 32378153 PMCID: PMC7367983 DOI: 10.1007/s13555-020-00386-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2020] [Indexed: 12/20/2022] Open
Abstract
Risankizumab, an interleukin (IL)-23 antagonist, is a highly effective treatment for moderate to severe psoriasis. Crusted scabies (CS) is a rare and severe form of scabies, occurring mainly in immunosuppressed patients and/or neurologically or mentally ill patients. A young girl with Down syndrome was diagnosed with a hyperkeratotic form of psoriasis. As treatment with topical dermocorticosteroids, UVB-phototherapy and acitretin for 6 weeks did not improve the lesions, two injections of risankizumab were administered. Following these injections, the lesions became rapidly even more severely crusted, and new lesions appeared on the extremities and the face of the patient. There was histological evidence of a high charge of scabies, leading to a diagnosis of CS. The patient was hospitalized and successfully treated by local permethrine and systemic ivermectine. This case suggests that even though anti-IL23 antagonists display an excellent overall safety profile, a particular caution for infections should still be respected in patients with underlying risk factors.
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Affiliation(s)
- Yseult Senterre
- Department of Dermatology and Venerology, CHU Sart Tilman, University of Liège, 4000, Liège, Belgium
| | - Gaëlle Jouret
- Department of Dermatology and Venerology, CHU Sart Tilman, University of Liège, 4000, Liège, Belgium
| | - Patrick Collins
- Department of Dermatopathology, CHU Sart Tilman, University of Liège, 4000, Liège, Belgium
| | - Arjen F Nikkels
- Department of Dermatology and Venerology, CHU Sart Tilman, University of Liège, 4000, Liège, Belgium.
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24
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Shen N, Wei W, Chen Y, Ren Y, Xiong L, Tao Y, Gu X, Xie Y, Peng X, Yang G. An Antibody Persistent and Protective Two rSsCLP-Based Subunit Cocktail Vaccine against Sarcoptes scabiei in a Rabbit Model. Vaccines (Basel) 2020; 8:vaccines8010129. [PMID: 32187979 PMCID: PMC7157647 DOI: 10.3390/vaccines8010129] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2020] [Revised: 03/09/2020] [Accepted: 03/12/2020] [Indexed: 11/16/2022] Open
Abstract
Scabies is a highly contagious disease caused by Sarcoptes scabiei which burrows into stratum corneum of host's skin. In this study, after optimizing vaccination schedule, a vaccination trial is comprised of three test groups of rabbits (n = 10/group) by immunization with (1) rSsCLP5; (2) rSsCLP12; or (3) a mixture of rSsCLP5 and rSsCLP12, three biological replicates groups (n = 10/group) and three control groups (n = 10/group). Levels of specific IgG, total IgE and cytokines in sera were detected and histopathologically analyzed as indicators of vaccine effects. The results showed that 85% (17/20) of rabbits exhibited no detectable skin lesions of S. scabiei infestation in mixed protein groups compared to single protein groups with 75% (15/20) and 70% (14/20), respectively. Moreover, the deworming rates of mixed groups are increased by 10%-20% compared with that of single groups. Each of six groups immunized with rSsCLP displayed significant increases of specific IgG, total IgE, IL-10, and TNF-α. The degree of skin damage in test groups also significantly lower than that of control groups. Thus, purified rSsCLP5 and rSsCLP12 subunit cocktail vaccine induced robust immune protection and could significantly decrease mite populations to reduce the direct transmission between rabbits.
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Affiliation(s)
- Nengxing Shen
- Department of Parasitology, College of Veterinary Medicine, Sichuan Agricultural University, Wenjiang 611130, China; (N.S.); (W.W.); (Y.C.); (L.X.); (Y.T.); (X.G.); (Y.X.)
| | - Wenrui Wei
- Department of Parasitology, College of Veterinary Medicine, Sichuan Agricultural University, Wenjiang 611130, China; (N.S.); (W.W.); (Y.C.); (L.X.); (Y.T.); (X.G.); (Y.X.)
| | - Yuhang Chen
- Department of Parasitology, College of Veterinary Medicine, Sichuan Agricultural University, Wenjiang 611130, China; (N.S.); (W.W.); (Y.C.); (L.X.); (Y.T.); (X.G.); (Y.X.)
| | - Yongjun Ren
- Animal Breeding and Genetics Key Laboratory of Sichuan Province, Chengdu 610066, Sichuan, China;
| | - Lang Xiong
- Department of Parasitology, College of Veterinary Medicine, Sichuan Agricultural University, Wenjiang 611130, China; (N.S.); (W.W.); (Y.C.); (L.X.); (Y.T.); (X.G.); (Y.X.)
| | - Yuanyuan Tao
- Department of Parasitology, College of Veterinary Medicine, Sichuan Agricultural University, Wenjiang 611130, China; (N.S.); (W.W.); (Y.C.); (L.X.); (Y.T.); (X.G.); (Y.X.)
| | - Xiaobin Gu
- Department of Parasitology, College of Veterinary Medicine, Sichuan Agricultural University, Wenjiang 611130, China; (N.S.); (W.W.); (Y.C.); (L.X.); (Y.T.); (X.G.); (Y.X.)
| | - Yue Xie
- Department of Parasitology, College of Veterinary Medicine, Sichuan Agricultural University, Wenjiang 611130, China; (N.S.); (W.W.); (Y.C.); (L.X.); (Y.T.); (X.G.); (Y.X.)
| | - Xuerong Peng
- Department of Chemistry, College of Life and Basic Science, Sichuan Agricultural University, Wenjiang 611130, China;
| | - Guangyou Yang
- Department of Parasitology, College of Veterinary Medicine, Sichuan Agricultural University, Wenjiang 611130, China; (N.S.); (W.W.); (Y.C.); (L.X.); (Y.T.); (X.G.); (Y.X.)
- Correspondence:
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The Relationship between Scabies and Stroke: A Population-Based Nationwide Study. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2019; 16:ijerph16183491. [PMID: 31546833 PMCID: PMC6766212 DOI: 10.3390/ijerph16183491] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/23/2019] [Revised: 09/10/2019] [Accepted: 09/12/2019] [Indexed: 12/23/2022]
Abstract
BACKGROUND Scabies is a commonly occurring infectious skin infestation that substantially impacts the quality of life, while stroke, which consists of a neurological deficit resulting from a lack of blood flow to the brain, carries sizable economic costs. The pathophysiologic mechanisms underlying both diseases involve inflammatory processes that are mediated by the immune system; however, no prior research has been conducted to explore the relationship between the two conditions. METHODS This population-based nationwide study utilized data from the National Health Insurance Research Database (NHIRD) of Taiwan for a total of 6628 scabies patients, who comprised a scabies group, and a randomly selected cohort of 26,509 matching patients, who served as a control group. More specifically, the medical records for the patients in both groups were checked for seven years to identify any new cases of stroke within that seven-year follow-up period. The hazard ratio (HR) of stroke for the follow-up period was then calculated using Cox proportional hazards regressions, while comorbidities and demographic characteristics were likewise analyzed. RESULTS During the follow-up period, 2892 patients, or 8.7%, of the overall total of 33,137 patients included in the study were newly diagnosed with a stroke. Of those newly diagnosed stroke patients, 833 were from the scabies group, and 2059 were from the control group, accounting for 12.6% and 7.8%, respectively, of the individuals in each group. With a crude hazard ratio of 1.67, the patients in the scabies group had a significantly higher risk of subsequent stroke than those in the control group, although the adjusted hazard ratio (aHR) for the scabies patients, which was determined by adjusting for covariates, was only 1.32 (95% confidence interval (CI): 1.21-1.43). CONCLUSIONS The results of the study indicated an elevated risk of stroke among scabies patients, an association that might be contributed to by immunopathological factors. This information could serve as a reminder to clinicians to remain alert to any indications of neurological impairment in patients previously infected with scabies.
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Hashimoto T, Satoh T, Yokozeki H. Pruritus in ordinary scabies: IL-31 from macrophages induced by overexpression of thymic stromal lymphopoietin and periostin. Allergy 2019; 74:1727-1737. [PMID: 31087686 DOI: 10.1111/all.13870] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2018] [Revised: 04/02/2019] [Accepted: 04/14/2019] [Indexed: 12/11/2022]
Abstract
BACKGROUND Scabies is a common contagious skin disease caused by an infestation of the skin by Sarcoptes scabiei var. hominis. A hallmark symptom of scabies is severe itch. METHODS We sought to determine the generation of a pruritogenic cytokine, interleukin (IL)-31, together with immune profiles in skin lesions of ordinary scabies through immunohistochemical and immunofluorescent studies. To elucidate the pathological mechanisms of IL-31 generation, murine peritoneal macrophages were stimulated with various T helper 2 (Th2) cytokines and proteins ex vivo. RESULTS A large number of CCR4(+) Th2 cells, eosinophils, and basophils infiltrated in scabies lesions. Increased generation of IL-31, thymic stromal lymphopoietin (TSLP), and periostin was also observed. A major population of IL-31(+) cells were Arginase-1(+)/CD163(+) M2 macrophages. Murine peritoneal macrophages showed an M2 phenotype and generated IL-31 when stimulated with TSLP and periostin. CONCLUSION IL-31 appeared to be largely generated by M2 macrophages in ordinary scabies lesions. This IL-31 induction was mediated by TSLP and periostin.
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Affiliation(s)
- Takashi Hashimoto
- Department of Dermatology, Graduate School of Medical and Dental Sciences Tokyo Medical and Dental University Tokyo Japan
- Department of Dermatology National Defense Medical College Saitama Japan
| | - Takahiro Satoh
- Department of Dermatology National Defense Medical College Saitama Japan
| | - Hiroo Yokozeki
- Department of Dermatology, Graduate School of Medical and Dental Sciences Tokyo Medical and Dental University Tokyo Japan
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27
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Nedumpun T, Techakriengkrai N, Thanawongnuwech R, Suradhat S. Negative Immunomodulatory Effects of Type 2 Porcine Reproductive and Respiratory Syndrome Virus-Induced Interleukin-1 Receptor Antagonist on Porcine Innate and Adaptive Immune Functions. Front Immunol 2019; 10:579. [PMID: 30972072 PMCID: PMC6443931 DOI: 10.3389/fimmu.2019.00579] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2018] [Accepted: 03/04/2019] [Indexed: 12/22/2022] Open
Abstract
Impaired innate and adaptive immune responses are evidenced throughout the course of PRRSV infection. We previously reported that interleukin-1 receptor antagonist (IL-1Ra) was involved in PRRSV-induced immunosuppression during an early phase of infection. However, the exact mechanism associated with PRRSV-induced IL-1Ra immunomodulation remains unknown. To explore the immunomodulatory properties of PRRSV-induced IL-1Ra on porcine immune functions, monocyte-derived dendritic cells (MoDC) and leukocytes were cultured with type 2 PRRSV, and the immunological role of IL-1Ra was assessed by addition of anti-porcine IL-1Ra Ab. The results demonstrated that PRRSV-induced IL-1Ra reduced phagocytosis, surface expression of MHC II (SLA-DR) and CD86, as well as downregulation of IFNA and IL1 gene expression in the MoDC culture system. Interestingly, IL-1Ra secreted by the PRRSV-infected MoDC also inhibited T lymphocyte differentiation and proliferation, but not IFN-γ production. Although PRRSV-induced IL-1Ra was not directly linked to IL-10 production, it contributed to the differentiation of regulatory T lymphocytes (Treg) within the culture system. Taken together, our results demonstrated that PRRSV-induced IL-1Ra downregulates innate immune functions, T lymphocyte differentiation and proliferation, and influences collectively with IL-10 in the Treg induction. The immunomodulatory roles of IL-1Ra elucidated in this study increase our understanding of the immunobiology of PRRSV.
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Affiliation(s)
- Teerawut Nedumpun
- Interdisciplinary Program in Medical Microbiology, Graduate School, Chulalongkorn University, Bangkok, Thailand
| | - Navapon Techakriengkrai
- Department of Veterinary Microbiology, Faculty of Veterinary Science, Chulalongkorn University, Bangkok, Thailand.,Center of Excellence in Emerging Infectious Diseases in Animals, Chulalongkorn University (CU-EIDAs), Bangkok, Thailand
| | - Roongroje Thanawongnuwech
- Center of Excellence in Emerging Infectious Diseases in Animals, Chulalongkorn University (CU-EIDAs), Bangkok, Thailand.,Department of Veterinary Pathology, Faculty of Veterinary Science, Chulalongkorn University, Bangkok, Thailand
| | - Sanipa Suradhat
- Department of Veterinary Microbiology, Faculty of Veterinary Science, Chulalongkorn University, Bangkok, Thailand.,Center of Excellence in Emerging Infectious Diseases in Animals, Chulalongkorn University (CU-EIDAs), Bangkok, Thailand
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Efficacy and Pharmacokinetics Evaluation of a Single Oral Dose of Afoxolaner against Sarcoptes scabiei in the Porcine Scabies Model for Human Infestation. Antimicrob Agents Chemother 2018; 62:AAC.02334-17. [PMID: 29914951 DOI: 10.1128/aac.02334-17] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2017] [Accepted: 06/07/2018] [Indexed: 11/20/2022] Open
Abstract
Scabies is a major and potentially growing public health problem worldwide with an unmet need for acaricidal agents with greater efficacy and improved pharmacological properties for its treatment. The objective of the present study was to assess the efficacy and describe the pharmacokinetics profile of a novel acaricide, afoxolaner (AFX), in a relevant experimental porcine model. Twelve pigs were experimentally infested and either treated with 2.5 mg/kg single dose oral AFX (n = 4) or 0.2 mg/kg, two doses 8 days apart, oral ivermectin ([IVM] n = 4) or not treated for scabies (n = 4). The response to treatment was assessed by the reduction of mite counts in skin scrapings as well as clinical and pruritus scores over time. Plasma and skin pharmacokinetics profiles for both AFX and IVM were evaluated. AFX efficacy was 100% at days 8 and 14 posttreatment and remained unchanged until the study end (day 45). IVM efficacy was 86% and 97% on days 8 and 14, respectively, with a few mites recovered at the study end. Clinical and pruritus scores decreased in both treated groups and remained constant in the control group. Plasma mean residence times (MRT) were 7.1 ± 2.4 and 1.1 ± 0.2 days for AFX and IVM, respectively. Skin MRT values were 16.2 ± 16.9 and 2.7 ± 0.5 days for AFX and IVM, respectively. Overall, a single oral dose of AFX was efficacious for the treatment of scabies in experimentally infested pigs and showed remarkably long MRTs in plasma and, notably, in the skin.
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Effects of Low-level Brodifacoum Exposure on the Feline Immune Response. Sci Rep 2018; 8:8168. [PMID: 29802369 PMCID: PMC5970145 DOI: 10.1038/s41598-018-26558-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2017] [Accepted: 05/11/2018] [Indexed: 12/15/2022] Open
Abstract
Anticoagulant rodenticides have been implicated as a potential inciting factor in the development of mange in wild felids, but a causative association between anticoagulant rodenticide exposure and immune suppression has not been established. Specific-pathogen-free domestic cats were exposed to brodifacoum over a 6-week period to determine whether chronic, low-level exposure altered the feline immune response. Cats were vaccinated with irrelevant antigens at different points during the course of the experiment to assess recall and direct immune responses. Measures of immune response included delayed-type hypersensitivity tests and cell proliferation assays. IgE and antigen-specific antibodies were quantified via ELISA assays, and cytokine induction following exposure to vaccine antigens was also analyzed. While cats had marked levels of brodifacoum present in blood during the study, no cats developed coagulopathies or hematologic abnormalities. Brodifacoum-exposed cats had transient, statistically significant decreases in the production of certain cytokines, but all other measures of immune function remained unaffected throughout the study period. This study indicates that cats may be more resistant to clinical effects of brodifacoum exposure than other species and suggests that the gross impacts of environmentally realistic brodifacoum exposure on humoral and cell-mediated immunity against foreign antigen exposures in domestic cats are minimal.
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Grahofer A, Bannoehr J, Nathues H, Roosje P. Sarcoptes infestation in two miniature pigs with zoonotic transmission - a case report. BMC Vet Res 2018. [PMID: 29534710 PMCID: PMC5850925 DOI: 10.1186/s12917-018-1420-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
Background Scabies is a contagious skin disease rarely described in miniature pigs. To the best of the authors’ knowledge, a zoonotic transfer from infected pet pigs to humans has not been reported previously. Case presentation This case report describes the infestation with Sarcoptes scabiei mites in two miniature pigs presenting with unusual clinical signs, and disease transmission to a child. Two 7-month-old male castrated miniature pig siblings were examined. Both had developed skin lesions, one animal was presented for neurological signs and emaciation. They were housed together in an indoor- and outdoor enclosure. Dermatological examination revealed a dull, greasy coat with generalized hypotrichosis and multifocal erythema. Microscopic examination of skin scrapings, impression smears of affected skin and ear swabs revealed high numbers of Sarcoptes mites in both animals as well as bacterial overgrowth. A subcutaneous injection of ivermectin 0.3 mg/kg was administered to both animals and repeated after 2 weeks. Both miniature pigs received subcutaneous injections with butafosfan and cyanocobalamin, were washed with a 3% chlorhexidine shampoo and were fed on a well-balanced diet. Pig enclosures were cleaned. The infested child was examined by a physician and an antipruritic cream was prescribed. Both miniature pigs and the child went into clinical remission after treatment. Conclusion Sarcoptic mange is rare or even eradicated in commercial pig farming in many countries but miniature pigs may represent a niche for Sarcoptes scabiei infections. This case report indicates that miniature pigs kept as pets can efficiently transmit zoonotic disease to humans. In addition, these animals may represent a niche for Sarcoptes scabiei infestation in countries where sarcoptic mange in commercial pig farms has been eradicated and could therefore pose, a hazard for specific pathogen free farms.
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Affiliation(s)
- Alexander Grahofer
- Clinic for Swine, Department of Clinical Veterinary Medicine, Vetsuisse Faculty, University of Bern, Bremgartenstrasse 109a, 3012, Bern, CH, Switzerland.
| | - Jeanette Bannoehr
- Dermatology Department, Animal Health Trust, Lanwades Park, Kentford, Newmarket, Suffolk, Cardiff, CB8 7UU, UK
| | - Heiko Nathues
- Clinic for Swine, Department of Clinical Veterinary Medicine, Vetsuisse Faculty, University of Bern, Bremgartenstrasse 109a, 3012, Bern, CH, Switzerland
| | - Petra Roosje
- Division of Clinical Dermatology, Department of Clinical Veterinary Medicine, Vetsuisse Faculty, University of Bern, Bern, Länggassstrasse 128, 3012, Berne, CH, Switzerland
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Liu JM, Lin CY, Chang FW, Liu YP, Liang CP, Hsu RJ. Increased risk of psoriasis following scabies infection: A nationwide population-based matched-cohort study. J Dermatol 2018; 45:302-308. [PMID: 29356052 DOI: 10.1111/1346-8138.14221] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2017] [Accepted: 12/13/2017] [Indexed: 12/13/2022]
Abstract
Both scabies and psoriasis are pruritic inflammatory skin diseases. The clinical manifestations are similar and provocation of psoriasis by mite bite was reported. The association between scabies and psoriasis was not investigated before. We conducted this nationwide population-based matched-cohort study to describe if patients with a diagnosis of scabies have a different risk of developing new psoriasis. From the National Health Insurance Research Database of Taiwan, patients with scabies (n = 5137) were identified and matched for age and sex with non-scabies controls (n = 19 142). We tracked them for a 7-year period to identify the incidence of psoriasis. One hundred and ninety (0.8%) patients with newly diagnosed psoriasis were identified; 91 (1.8%) from the scabies group and 99 (0.5%) from the control group. Patients with scabies had a higher risk of subsequent psoriasis, with a crude hazard ratio of 3.45 and an adjusted hazard ratio (aHR) of 3.03 (95% confidence interval, 2.24-4.11). An increased risk for psoriasis among patients with scabies was observed (aHR, 3.03). Immunopathology involving the T-helper 17 cell-mediated inflammatory pathway may contribute to this association. Physicians may consider implementing assessments of psoriatic symptoms in patients with scabies.
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Affiliation(s)
- Jui-Ming Liu
- Division of Urology, Department of Surgery, Taoyuan General Hospital, Ministry of Health and Welfare, Taoyuan, Taiwan.,Graduate Institute of Life Sciences, National Defense Medical Center, Taipei, Taiwan
| | - Chien-Yu Lin
- Department of Pediatrics, Hsinchu MacKay Memorial Hospital, Hsinchu City, Taiwan.,Division of Infection and Pathway Medicine, College of Medicine and Veterinary Medicine, University of Edinburgh, Edinburgh, UK
| | - Fung-Wei Chang
- Department of Obstetrics and Gynecology, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
| | - Yueh-Ping Liu
- Department of Emergency Medicine, National Taiwan University Hospital, Taipei, Taiwan
| | - Chung-Pin Liang
- Dermatology Department, Cheng Ching General Hospital, Taichung, Taiwan
| | - Ren-Jun Hsu
- Graduate Institute of Life Sciences, National Defense Medical Center, Taipei, Taiwan.,Biobank Management Center of the Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan.,Department of Pathology and Graduate Institute of Pathology and Parasitology, the Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
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Old JM, Sengupta C, Narayan E, Wolfenden J. Sarcoptic mange in wombats-A review and future research directions. Transbound Emerg Dis 2017; 65:399-407. [PMID: 29150905 DOI: 10.1111/tbed.12770] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2017] [Indexed: 01/10/2023]
Abstract
Sarcoptic mange is caused by the mite Sarcoptes scabiei and has recently been recognized as an emerging infectious disease of wildlife worldwide. The mite is one of the main causes of population decline in southern hairy-nosed (Lasiorhinus latifrons) and bare-nosed wombats (Vombatus ursinus). This review focuses on Sarcoptes scabiei infestations in wombats and provides insights into why the disease may be so prevalent in wombats. Current treatment practices and trials conducted in the field to reduce the incidence of sarcoptic mange in wombats are described and critically reviewed. Current and potential future avenues of research are discussed.
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Affiliation(s)
- J M Old
- School of Science and Health, Hawkesbury, University of Western Sydney, Penrith, NSW, Australia
| | - C Sengupta
- School of Science and Health, Hawkesbury, University of Western Sydney, Penrith, NSW, Australia
| | - E Narayan
- School of Science and Health, Hawkesbury, University of Western Sydney, Penrith, NSW, Australia
| | - J Wolfenden
- School of Science and Health, Hawkesbury, University of Western Sydney, Penrith, NSW, Australia
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Ajith Y, Dimri U, Gopalakrishnan A, Madhesh E, Jhambh R, Joshi V, Devi G. Th1/Th2 immune responses and oxidative stress in caprine flea allergy dermatitis. Parasite Immunol 2017; 39. [PMID: 29094355 DOI: 10.1111/pim.12500] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2017] [Accepted: 10/26/2017] [Indexed: 11/28/2022]
Abstract
Flea allergy dermatitis (FAD) is the common, often neglected skin disease of goats caused mainly by Ctenocephalides felis. This study aimed to evaluate the immuno-oxidative pathobiology of FAD in goats. Twelve goats from the same herd were divided into two groups of six animals each. The group I (FAD) included animals with natural flea infestation and severe dermatitis lesions. The group II (Healthy control) animals were free from any parasitic infestation. To assess the pathological changes, the markers of oxidative stress (lipid peroxidation, reduced glutathione and total antioxidant capacity), and immune status (Tumour necrosis factor alpha, Interleukin 10, Transforming growth factor beta 1 and Th1/Th2 cytokine ratio) were evaluated from the blood and the serum samples. Remarkable oxidative stress and severe inflammatory response with Th2 cytokine dominance were observed in flea infested animals. Highly antigenic agents of fleas, either secretory or excretory or structural, induced severe inflammatory responses and significant oxidative stress in caprine FAD. Massive release of cytokines may be responsible for severe skin inflammation and lesions in FAD in contrast to other Th2 dominant ectoparasitic skin conditions of goats'.
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Affiliation(s)
- Y Ajith
- Division of Medicine, Indian Veterinary Research Institute, Izatnagar, UP, India
| | - U Dimri
- Division of Medicine, Indian Veterinary Research Institute, Izatnagar, UP, India
| | - A Gopalakrishnan
- Division of Medicine, Indian Veterinary Research Institute, Izatnagar, UP, India
| | - E Madhesh
- Division of Medicine, Indian Veterinary Research Institute, Izatnagar, UP, India
| | - R Jhambh
- Division of Medicine, Indian Veterinary Research Institute, Izatnagar, UP, India
| | - V Joshi
- Division of Medicine, Indian Veterinary Research Institute, Izatnagar, UP, India
| | - G Devi
- Division of Medicine, Indian Veterinary Research Institute, Izatnagar, UP, India
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Lin CY, Chang FW, Yang JJ, Chang CH, Yeh CL, Lei WT, Huang CF, Liu JM, Hsu RJ. Increased risk of bipolar disorder in patients with scabies: A nationwide population-based matched-cohort study. Psychiatry Res 2017; 257:14-20. [PMID: 28709117 DOI: 10.1016/j.psychres.2017.07.013] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/17/2016] [Revised: 06/17/2017] [Accepted: 07/04/2017] [Indexed: 02/09/2023]
Abstract
Both scabies and bipolar disorder (BD) are common and troublesome disorders. There are several similarities in both diseases: pruritus, a higher prevalence in crowded environments, and cytokine-mediated inflammatory processes in the pathophysiology. We conducted this nationwide population-based study to investigate the possible relationship between scabies and BD. Based on the National Health Insurance Research Database (NHIRD) of Taiwan, a total of 7096 patients with scabies were identified as a study group and 28,375 matched patients as a control. We tracked the patients in both groups for a 7-year period to identify those newly diagnosed with BD. The demographic characteristics and comorbidities of the patients were analyzed, and Cox proportional hazard regressions were performed to calculate the hazard ratio (HR) of BD. Of the 35,471 patients in this study, 183 (0.5%) patients with newly diagnosed BD were identified, with 58 (0.8%) from the scabies group and 125 (0.4%) from the control group. The patients with scabies had a higher risk of subsequent BD, with a crude hazard ratio of 1.86 and an adjusted hazard ratio of 1.55 (95% confidence interval: 1.12-2.09, P < 0.05). This study shows there is an increased risk for BD among patients with scabies. Immunopathology may contribute to this association.
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Affiliation(s)
- Chien-Yu Lin
- Department of Pediatrics, Hsinchu MacKay Memorial Hospital, Hsinchu, Taiwan; Division of Infection and Pathway Medicine, College of Medicine and Veterinary Medicine, the University of Edinburgh, Scotland, UK.
| | - Fung-Wei Chang
- Department of Obstetrics & Gynecology, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan.
| | - Jing-Jung Yang
- Department of Psychiatry, Cardinal Tien Hospital, New Taipei City, Taiwan; Institute of Biomedical Engineering, College of Medicine and College of Engineering, National Taiwan University, Taipei, Taiwan.
| | - Chun-Hung Chang
- Department of Psychiatry, China Medical University Hospital, Taichung, Taiwan; Institute of Clinical Medicine, China Medical University, Taichung, Taiwan.
| | - Chia-Lun Yeh
- Division of Urology, Department of Surgery, Taoyuan General Hospital, Ministry of Health and Welfare, Taoyuan, Taiwan.
| | - Wei-Te Lei
- Department of Pediatrics, Hsinchu MacKay Memorial Hospital, Hsinchu, Taiwan.
| | - Chun-Fa Huang
- School of Chinese Medicine, College of Chinese Medicine, China Medical University, Taichung, Taiwan; Department of Nursing, College of Medical and Health Science, Asia University, Taichung, Taiwan.
| | - Jui-Ming Liu
- Division of Urology, Department of Surgery, Taoyuan General Hospital, Ministry of Health and Welfare, Taoyuan, Taiwan; Department of Medicine, National Yang-Ming University, Taipei, Taiwan; Graduate Institute of Life Sciences, National Defense Medical Center, Taipei, Taiwan.
| | - Ren-Jun Hsu
- Graduate Institute of Life Sciences, National Defense Medical Center, Taipei, Taiwan; Biobank Management Center of the Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan; Department of Pathology and Graduate Institute of Pathology and Parasitology, the Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan.
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35
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Liuweibuqi capsules suppress inflammation by affecting T cell polarization and survival in chronic obstructive pulmonary disease. Med Chem Res 2017. [DOI: 10.1007/s00044-017-1980-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Liu JM, Hsu RJ, Chang FW, Chiu FH, Yeh CL, Huang CF, Chang ST, Lee HC, Chi H, Lin CY. Increased risk of pernicious anemia following scabies: a nationwide population-based matched-cohort study. Ther Clin Risk Manag 2017; 13:1205-1211. [PMID: 29066901 PMCID: PMC5605127 DOI: 10.2147/tcrm.s137662] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Objectives Scabies is a common and annoying disorder. Pernicious anemia (PA) is a serious disease which, when untreated, leads to death. Mounting evidence suggests that immune-mediated inflammatory processes play a role in the pathophysiology of both diseases. The relationship between these two diseases has not been investigated. We conducted this study to explore the potential relationship between scabies and PA. Materials and methods This nationwide, population-based study was conducted using the National Health Insurance Research Database of Taiwan. In total, 5,407 patients with scabies were identified as a study group and 20,089 matched patients were randomly selected as a control group. We tracked patients in both groups for a 7-year period to identify the incidence of PA. The demographic characteristics and comorbidities of the patients were analyzed, and Cox proportional hazards regression was used to calculate the hazard ratios for PA. Results Of the 25,496 patients in this study, 183 (0.7%) patients with newly diagnosed PA were identified during the 7-year follow-up period; 71 of 5,407 (1.3%) from the scabies group and 112 of 20,089 (0.6%) from the control group. Patients with scabies had a higher risk of subsequent PA, with a crude hazard ratio of 2.368. After adjusting for covariates, the adjusted hazard ratio was 1.51 (95% confidence interval: 1.09–2.08). Conclusion This study demonstrated an increased risk of PA (adjusted hazard ratio 1.51) among patients with scabies. Immune-mediated inflammatory processes may contribute to this association. Further studies are warranted to investigate the entire pathological mechanisms between these two diseases. Physicians should pay attention to patients with history of scabies presented with anemia. Further confirmative tests of PA may contribute to correct diagnosis and initiation of vitamin B12 supplement.
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Affiliation(s)
- Jui-Ming Liu
- Division of Urology, Department of Surgery, Taoyuan General Hospital, Ministry of Health and Welfare, Taoyuan.,Department of Medicine, National Yang-Ming University.,Graduate Institute of Life Sciences
| | - Ren-Jun Hsu
- Graduate Institute of Life Sciences.,Department of Pathology and Graduate Institute of Pathology and Parasitology, the Tri-Service General Hospital, National Defense Medical Center.,Biobank Management Center of the Tri-Service General Hospital
| | - Fung-Wei Chang
- Department of Obstetrics and Gynecology, Tri-Service General Hospital, National Defense Medical Center, Taipei
| | - Feng-Hsiang Chiu
- Department of Emergency Medicine, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan.,Superintendent office, Lihuili Eastern Hospital, Ningbo, Zhejiang province, People's Republic of China
| | - Chia-Lun Yeh
- Division of Urology, Department of Surgery, Taoyuan General Hospital, Ministry of Health and Welfare, Taoyuan
| | - Chun-Fa Huang
- School of Chinese Medicine, College of Chinese Medicine, China Medical University.,Department of Nursing, College of Medical and Health Science, Asia University, Taichung City
| | - Shu-Ting Chang
- Department of Gastroenterology, BinKun Women's and Children's Hospital, Taoyuan City
| | - Hung-Chang Lee
- Department of Infectious Disease, MacKay Children's Hospital, Taipei
| | - Hsin Chi
- Department of Infectious Disease, MacKay Children's Hospital, Taipei.,Department of Medicine, MacKay Medical College, New Taipei city
| | - Chien-Yu Lin
- Department of Pediatrics and Infectious Disease, Hsinchu MacKay Memorial Hospital, Hsinchu City, Taiwan.,Division of Infection and Pathway Medicine, College of Medicine and Veterinary Medicine, The University of Edinburgh, Scotland, UK
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The association between scabies and myasthenia gravis: A nationwide population-based cohort study. J Clin Neurosci 2017; 45:115-120. [PMID: 28890037 DOI: 10.1016/j.jocn.2017.08.010] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2017] [Accepted: 08/10/2017] [Indexed: 12/24/2022]
Abstract
Scabies is an infectious inflammatory pruritic skin disease. Cytokine-mediated inflammatory processes contribute to the pathologic mechanism in scabies. Myasthenia gravis (MG) is also an autoimmune disease that is mediated by cytokines. The study aimed to investigate the association between scabies and myasthenia gravis. We conducted a nationwide population-based cohort study utilized data from the National Health Insurance Research Database (NHIRD) of Taiwan. Patients with scabies (n=5429) and control subjects without scabies (n=20,176) were enrolled. We tracked the subjects in both groups for a 7-year period to identify new onset MG. Cox regression analysis was performed to calculate the hazard ratio (HR) for MG. A total of 25,605 patients were enrolled in the study, including 5429 patients in the scabies group and 20,176 in the control group. There were 40 (0.7%) patients from the scabies group and 84 (0.4%) subjects from the control group who were newly diagnosed with MG during the 7-year follow-up period. The scabies patients had a significantly increased risk of MG, with an adjusted HR of 1.27 (95% confidence interval [CI] 1.01-1.89). As such, prompt diagnosis and treatment of scabies may decrease the risk of subsequent MG.
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Bhat SA, Mounsey KE, Liu X, Walton SF. Host immune responses to the itch mite, Sarcoptes scabiei, in humans. Parasit Vectors 2017; 10:385. [PMID: 28797273 PMCID: PMC5553898 DOI: 10.1186/s13071-017-2320-4] [Citation(s) in RCA: 64] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2017] [Accepted: 08/02/2017] [Indexed: 12/21/2022] Open
Abstract
Scabies is a parasitic disease due to infestation of skin by the burrowing mite Sarcoptes scabiei. Scabies is a major public health problem and endemic in resource poor communities worldwide affecting over 100 million people. Associated bacterial infections cause substantial morbidity, and in severe cases can lead to renal and cardiac diseases. Mite infestation of the skin causes localised cutaneous inflammation, pruritus, skin lesions, and allergic and inflammatory responses are mounted by the host against the mite and its products. Our current understanding of the immune and inflammatory responses associated with the clinical manifestations in scabies is far outweighed by the significant global impact of the disease. This review aims to provide a better understanding of human immune responses to S. scabiei in ordinary and crusted scabies phenotypes.
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Affiliation(s)
- Sajad A. Bhat
- Inflammation & Healing Research Cluster, School of Health and Sport Sciences, Faculty of Science, Health, Education and Engineering, University of the Sunshine Coast, Locked Bag 4, Maroochydore DC, QLD 4558 Australia
| | - Kate E. Mounsey
- Inflammation & Healing Research Cluster, School of Health and Sport Sciences, Faculty of Science, Health, Education and Engineering, University of the Sunshine Coast, Locked Bag 4, Maroochydore DC, QLD 4558 Australia
| | - Xiaosong Liu
- Inflammation & Healing Research Cluster, School of Health and Sport Sciences, Faculty of Science, Health, Education and Engineering, University of the Sunshine Coast, Locked Bag 4, Maroochydore DC, QLD 4558 Australia
| | - Shelley F. Walton
- Inflammation & Healing Research Cluster, School of Health and Sport Sciences, Faculty of Science, Health, Education and Engineering, University of the Sunshine Coast, Locked Bag 4, Maroochydore DC, QLD 4558 Australia
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Liu JM, Hsu RJ, Chang FW, Yeh CL, Huang CF, Chang ST, Chiu NC, Chang HY, Chi H, Lin CY. Increase the risk of intellectual disability in children with scabies: A nationwide population-based cohort study. Medicine (Baltimore) 2017; 96:e7108. [PMID: 28591057 PMCID: PMC5466235 DOI: 10.1097/md.0000000000007108] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
Scabies is a common and distressing disease caused by the mite Sarcoptes scabiei var. hominis. Psychiatric disorder in childhood is an important disease and easily neglected. There are several similarities in scabies and psychiatric disorders in childhood (PDC). Both of them may present with pruritus. They are relatively common in patients with lower socioeconomic status and crowded environment. Furthermore, immune-mediated inflammatory processes play a role in the pathophysiology in both diseases. An association between scabies and psychiatric disorders may exist. This nationwide population-based cohort study utilized data from the National Health Insurance Research Database to investigate the relationship between scabies and PDC. A total of 2137 children with scabies were identified as the study group and 8548 age- and sex-matched children were selected as the control group. A total of 607 (5.68%) children developed PDC during the 7-year follow-up period. The overall incidences of PDC are similar but patients with scabies had a higher risk of developing intellectual disability (ID) (scabies group vs control group: 1.3% vs 0.6%, adjusted hazard ratio: 2.04 and 95% confidence interval: 1.25-3.32). The immune-mediated inflammatory processes of both diseases were reviewed and may contribute to the 104% increased risk of interleukin in patients with scabies. We suggest a more comprehensive management in treating patients with scabies or ID. Early and comprehensive treatment of scabies and other risk factors may decrease the risk of subsequent ID. When we approach patients with ID, concurrent evaluation of scabies and other risk factors may contribute to successful management.
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Affiliation(s)
- Jui-Ming Liu
- Division of Urology, Department of Surgery, Taoyuan General Hospital, Ministry of Health and Welfare, Taoyuan
- Department of Medicine, National Yang-Ming University
- Graduate Institute of Life Sciences
| | - Ren-Jun Hsu
- Graduate Institute of Life Sciences
- Biobank Management Center of the Tri-Service General Hospital
- Department of Pathology and Graduate Institute of Pathology and Parasitology
| | - Fung-Wei Chang
- Department of Obstetrics & Gynecology, Tri-Service General Hospital, National Defense Medical Center
| | - Chia-Lun Yeh
- Division of Urology, Department of Surgery, Taoyuan General Hospital, Ministry of Health and Welfare, Taoyuan
- Institute of Bioinformatics and System Biology, National Chiao Tung University, Hsinchu
| | - Chun-Fa Huang
- School of Chinese Medicine, College of Chinese Medicine, China Medical University
- Department of Nursing, College of Medical and Health Science, Asia University
| | - Shu-Ting Chang
- Department of Pediatrics, BinKun Women's and Children's Hospital, Taoyuan
| | - Nan-Chang Chiu
- Department of Pediatrics, MacKay Children's Hospital, Taipei
- Department of Medicine, MacKay Medical College, New Taipei City
| | - Hung-Yang Chang
- Department of Pediatrics, MacKay Children's Hospital, Taipei
- Department of Medicine, MacKay Medical College, New Taipei City
| | - Hsin Chi
- Department of Pediatrics, MacKay Children's Hospital, Taipei
- Department of Medicine, MacKay Medical College, New Taipei City
| | - Chien-Yu Lin
- Department of Pediatrics and Infectious Disease, Hsinchu MacKay Memorial Hospital, Hsinchu, Taiwan
- Division of Infection and Pathway Medicine, College of Medicine and Veterinary Medicine, the University of Edinburgh, Edinburgh, United Kingdom
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Espinosa J, Pérez JM, López-Olvera JR, Ráez-Bravo A, Cano-Manuel FJ, Fandos P, Soriguer RC, Granados JE, Romero D. Evaluation of oxidant/antioxidant balance in Iberian ibex (Capra pyrenaica) experimentally infested with Sarcoptes scabiei. Vet Parasitol 2017; 242:63-70. [PMID: 28606327 DOI: 10.1016/j.vetpar.2017.05.027] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2017] [Revised: 05/23/2017] [Accepted: 05/27/2017] [Indexed: 11/16/2022]
Abstract
Oxidative stress (OS) is an imbalance between radical-generating and radical scavenging activity, resulting in oxidation products and tissue damage. Although some studies have been done in other species, there is a lack of information about the oxidative/antioxidant status in the Iberian ibex (Capra pyrenaica) affected by sarcoptic mange. To clarify this fact, albumin, catalase (CAT), glutathione peroxidase (GSH-Px), superoxide dismutase (SOD), paraoxonase-1 (PON-1), glutathione reductase (GR), reduced glutathione (GSH): oxidized glutathione (GSSG) ratio, thiobarbituric acid reactive substances (TBARS) and total oxidant status (TOS) concentrations were measured in peripheral blood of ibexes experimentally infested with Sarcoptes scabiei (n=25), as well as in the healthy control group (n=14). During the course of the experiment, the infected ibexes were visually assigned to four categories according to the percentage of skin surface affected by mites. In the infested ibexes, the levels of albumin, PON-1, CAT, SOD, GSH-Px and GSH:GSSG ratio showed a significant (p<0.01) decrease with disease progression. With respect to the control group, this decrease was significantly (p<0.001) lower in the more severe clinical stages. No significant changes were observed in GR activity during disease or with respect to the control group. Conversely, the concentrations of TOS and TBARS increased with lesion severity, and with respect to the control group, this increase was significant (p<0.01) in the more advanced stages of the infection. Additionally, to explore the possible effects of sex, age, haplotype, mange status, and days post infection (dpi) on each of the OS biomarkers, generalized additive mixed models were applied. According to our results, the mange status and dpi explained the highest percentages in the observed changes in the biomarkers analyzed, whereas the haplotype only influenced the observed variability of albumin and TOS. The contribution of sex and age was not significant in any of the OS biomarkers. From the present study, it may be concluded that sarcoptic mange infestation increases OS and decreases antioxidant status in ibex. This imbalance may contribute to the pathogenesis of this disease.
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Affiliation(s)
- José Espinosa
- Departamento de Biología Animal, Vegetal y Ecología, Universidad de Jaén, Campus Las Lagunillas s/n, 23071 Jaén, Spain.
| | - Jesús M Pérez
- Departamento de Biología Animal, Vegetal y Ecología, Universidad de Jaén, Campus Las Lagunillas s/n, 23071 Jaén, Spain
| | - Jorge R López-Olvera
- Servei d'Ecopatologia de Fauna Salvatge (SEFaS), Departament de Medicina i Cirurgia Animals, Universitat Autònoma de Barcelona (UAB), E-08193 Bellaterra, Barcelona, Spain
| | - Arián Ráez-Bravo
- Servei d'Ecopatologia de Fauna Salvatge (SEFaS), Departament de Medicina i Cirurgia Animals, Universitat Autònoma de Barcelona (UAB), E-08193 Bellaterra, Barcelona, Spain
| | - Francisco J Cano-Manuel
- Espacio Natural Sierra Nevada, Carretera Antigua de Sierra Nevada, Km 7, E-18071 Pinos Genil, Granada, Spain
| | - Paulino Fandos
- Agencia de Medio Ambiente y Agua, Isla de la Cartuja, E-41092 Sevilla, Spain
| | - Ramón C Soriguer
- Estación Biológica de Doñana (CSIC), Av. Américo Vespucio, s.n., E-41092 Sevilla, Spain; CIBER Epidemiología y Salud Pública (CIBERESP), Spain
| | - José Enrique Granados
- Espacio Natural Sierra Nevada, Carretera Antigua de Sierra Nevada, Km 7, E-18071 Pinos Genil, Granada, Spain
| | - Diego Romero
- Área de Toxicología, Facultad de Veterinaria, Universidad de Murcia, 30100 Murcia, Spain
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Liu JM, Chiu FH, Lin CY, Chang FW, Hsu RJ. Incidence of autoimmune diseases in patients with scabies: a nationwide population-based study in Taiwan. Rheumatol Int 2017; 37:1125-1134. [PMID: 28421357 DOI: 10.1007/s00296-017-3717-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2016] [Accepted: 04/06/2017] [Indexed: 02/05/2023]
Abstract
Scabies is a commonly occurring infectious immune-mediated inflammatory skin disease. Immune-mediated inflammatory processes are also observed in autoimmune diseases. There have been very few previous studies; however, that have investigated the possible association between scabies and autoimmune diseases. To address this research gap, we conducted a nationwide population-based cohort study that included a total of 4481 scabies patients and 16,559 control subjects matched by gender, age, insured region, urbanization and income. We tracked both cohorts for a 7-year period to identify the incidence of autoimmune diseases in both groups during that follow-up period. Relatedly, a Cox regression analysis was performed to calculate and compare the hazard ratio (HR) for autoimmune diseases of both groups. An overall increased risk for 19 autoimmune diseases was observed in the scabies patients, with an adjusted HR (aHR) of 1.14 (95% CI 1.04-1.25). Compared with the control group, the scabies patients exhibited increased risks of hypersensitivity vasculitis (aHR 5.44, 95% CI 1.64-18.07), dermatomyositis (aHR 4.91, 95% CI 1.80-13.38), polyarteritis nodosa (aHR 2.89, 95% CI 1.46-5.73), systemic lupus erythematosus (aHR 2.73, 95% CI 1.33-5.64), psoriasis (aHR 2.31, 95% CI 1.85-2.88), myasthenia gravis (aHR 2.01, 95% CI 1.31-3.12), type 1 diabetes mellitus (aHR 1.93, 95% CI 1.53-2.44), pernicious anemia (aHR 1.92, 95% CI 1.42-2.61), and rheumatoid arthritis (aHR 1.43, 95% CI 1.12-1.83). In conclusion, the associations between scabies and a variety of autoimmune diseases may exist. Further studies are needed to clarify the shared etiologies and relationships between scabies and autoimmune diseases.
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Affiliation(s)
- Jui-Ming Liu
- Division of Urology, Department of Surgery, Taoyuan General Hospital, Ministry of Health and Welfare, No. 1492, Chung-Shan Road, Taoyuan District, Taoyuan, 330, Taiwan.,Faculty of Medicine, National Yang-Ming University, Taipei, Taiwan.,Graduate Institute of Life Sciences, National Defense Medical Center, No. 161, Sec. 6, Minquan E. Road, Neihu District, Taipei, 114, Taiwan
| | - Feng-Hsiang Chiu
- Department of Emergency Medicine, Shuang Ho Hospital, Taipei Medical University, Taipei, 235, Taiwan.,Superintendent Office, Ningbo Medical Center, Lihuili Eastern Hospital, Ningbo City, 315000, Zhejiang Province, PR China
| | - Chien-Yu Lin
- Department of Pediatrics, Hsinchu MacKay Memorial Hospital, No. 690, Sec. 2, Guangfu Road, Hsinchu, 300, Taiwan
| | - Fung-Wei Chang
- Department of Obstetrics and Gynecology, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
| | - Ren-Jun Hsu
- Graduate Institute of Life Sciences, National Defense Medical Center, No. 161, Sec. 6, Minquan E. Road, Neihu District, Taipei, 114, Taiwan. .,Department of Pathology and Graduate Institute of Pathology and Parasitology, The Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan. .,Biobank Management Center of The Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan.
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Fraser TA, Charleston M, Martin A, Polkinghorne A, Carver S. The emergence of sarcoptic mange in Australian wildlife: an unresolved debate. Parasit Vectors 2016; 9:316. [PMID: 27255333 PMCID: PMC4890250 DOI: 10.1186/s13071-016-1578-2] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2016] [Accepted: 05/09/2016] [Indexed: 11/23/2022] Open
Abstract
Due to its suspected increase in host range and subsequent global diversification, Sarcoptes scabiei has important implications at a global scale for wildlife conservation and animal and human health. The introduction of this pathogen into new locations and hosts has been shown to produce high morbidity and mortality, a situation observed recently in Australian and North American wildlife. Of the seven native animal species in Australia known to be infested by S. scabiei, the bare-nosed wombat (Vombatus ursinus) suffers the greatest with significant population declines having been observed in New South Wales and Tasmania. The origins of sarcoptic mange in Australian native animals are poorly understood, with the most consistent conclusion being that mange was introduced by settlers and their dogs and subsequently becoming a major burden to native wildlife. Four studies exist addressing the origins of mange in Australia, but all Australian S. scabiei samples derive from only two of these studies. This review highlights this paucity of phylogenetic knowledge of S. scabiei within Australia, and suggests further research is needed to confidently determine the origin, or multiple origins, of this parasite. At the global scale, numerous genetic studies have attempted to reveal how the host species and host geographic location influence S. scabiei phylogenetics. This review includes an analysis of the global literature, revealing that inconsistent use of gene loci across studies significantly influences phylogenetic inference. Furthermore, by performing a contemporary analytical approach on existing data, it is apparent that (i) new S. scabiei samples, (ii) appropriate gene loci targets, and (iii) advanced phylogenetic approaches are necessary to more confidently comprehend the origins of mange in Australia. Advancing this field of research will aid in understanding the mechanisms of spillover for mange and other parasites globally.
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Affiliation(s)
- Tamieka A Fraser
- School of Biological Sciences, University of Tasmania, Sandy Bay, 7001, TAS, Australia. .,Centre for Animal Health Innovation, Faculty of Science, Health, Education and Engineering, University of the Sunshine Coast, 91 Sippy Downs Drive, Sippy Downs, 4556, QLD, Australia.
| | - Michael Charleston
- School of Biological Sciences, University of Tasmania, Sandy Bay, 7001, TAS, Australia.,School of Information Technologies, University of Sydney, Camperdown, 2006, Sydney, Australia
| | - Alynn Martin
- School of Biological Sciences, University of Tasmania, Sandy Bay, 7001, TAS, Australia
| | - Adam Polkinghorne
- Centre for Animal Health Innovation, Faculty of Science, Health, Education and Engineering, University of the Sunshine Coast, 91 Sippy Downs Drive, Sippy Downs, 4556, QLD, Australia
| | - Scott Carver
- School of Biological Sciences, University of Tasmania, Sandy Bay, 7001, TAS, Australia
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Mounsey KE, Bernigaud C, Chosidow O, McCarthy JS. Prospects for Moxidectin as a New Oral Treatment for Human Scabies. PLoS Negl Trop Dis 2016; 10:e0004389. [PMID: 26985995 PMCID: PMC4795782 DOI: 10.1371/journal.pntd.0004389] [Citation(s) in RCA: 53] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- Kate E. Mounsey
- Inflammation & Healing Research Cluster, School of Health and Sport Sciences, University of the Sunshine Coast, Maroochydore, Queensland, Australia
- Infectious Diseases & Immunology Division, QIMR Berghofer Medical Research Institute, Herston, Queensland, Australia
- * E-mail:
| | | | - Olivier Chosidow
- Dermatology Department, Henri Mondor Hospital, AP-HP, UPEC, Créteil, France
- Université Paris-est Créteil Val de Marne, Créteil, France
| | - James S. McCarthy
- Infectious Diseases & Immunology Division, QIMR Berghofer Medical Research Institute, Herston, Queensland, Australia
- School of Medicine, University of Queensland, Herston, Queensland, Australia
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Sarre C, González-Hernández A, Van Coppernolle S, Grit R, Grauwet K, Van Meulder F, Chiers K, Van den Broeck W, Geldhof P, Claerebout E. Comparative immune responses against Psoroptes ovis in two cattle breeds with different susceptibility to mange. Vet Res 2015; 46:131. [PMID: 26582546 PMCID: PMC4652412 DOI: 10.1186/s13567-015-0277-x] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2015] [Accepted: 10/19/2015] [Indexed: 12/22/2022] Open
Abstract
The sheep scab mite, Psoroptes ovis, is a major problem in the beef cattle industry, especially in Belgian Blue (BB) cattle. This breed is naturally more predisposed to psoroptic mange but reasons for this high susceptibility remain unknown. Different immune responses could be a potential cause; thus in this study, the cutaneous immune response and in vitro cellular immune response after antigen re-stimulation were examined in naturally infested BB. Cytokine production in the skin and in circulating re-stimulated peripheral blood mononuclear cells (PBMC) demonstrated a mixed pro-inflammatory Th2/Th17 profile, with transcription of IL-4, IL-13, IL-6 and IL-17. Strong IL-17 up-regulation in the skin of BB was associated with an influx of eosinophils and other immune cells, potentially leading towards more severe symptoms. Virtually no changes in cutaneous IFN-γ transcription were detected, while there was substantial IFN-γ up-regulation in re-stimulated PBMC from infested and uninfested animals, potentially indicating a role of this pro-inflammatory cytokine in the innate immune response. In Holstein–Friesian (HF) cattle, generally more resistant to P. ovis infection, a largely similar immunologic response was observed. Differences between HF and BB were the lack of cutaneous IL-17 response in infested HF and low transcription levels of IFN-γ and high IL-10 transcription in re-stimulated PBMC from both infested and uninfested animals. Further research is needed to identify potential cell sources and biological functions for these cytokines and to fully unravel the basis of this different breed susceptibility to P. ovis.
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Affiliation(s)
- Charlotte Sarre
- Department of Virology, Parasitology and Immunology, Faculty of Veterinary Medicine, Ghent University, Merelbeke, Belgium.
| | - Ana González-Hernández
- Department of Virology, Parasitology and Immunology, Faculty of Veterinary Medicine, Ghent University, Merelbeke, Belgium.
| | - Stefanie Van Coppernolle
- Department of Virology, Parasitology and Immunology, Faculty of Veterinary Medicine, Ghent University, Merelbeke, Belgium.
| | - Rika Grit
- Department of Virology, Parasitology and Immunology, Faculty of Veterinary Medicine, Ghent University, Merelbeke, Belgium.
| | - Korneel Grauwet
- Department of Virology, Parasitology and Immunology, Faculty of Veterinary Medicine, Ghent University, Merelbeke, Belgium.
| | - Frederik Van Meulder
- Department of Virology, Parasitology and Immunology, Faculty of Veterinary Medicine, Ghent University, Merelbeke, Belgium.
| | - Koen Chiers
- Department of Pathology, Bacteriology and Poultry Diseases, Faculty of Veterinary Medicine, Ghent University, Merelbeke, Belgium.
| | - Wim Van den Broeck
- Department of Morphology, Faculty of Veterinary Medicine, Ghent University, Merelbeke, Belgium.
| | - Peter Geldhof
- Department of Virology, Parasitology and Immunology, Faculty of Veterinary Medicine, Ghent University, Merelbeke, Belgium.
| | - Edwin Claerebout
- Department of Virology, Parasitology and Immunology, Faculty of Veterinary Medicine, Ghent University, Merelbeke, Belgium.
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Carvalho J, Granados JE, López-Olvera JR, Cano-Manuel FJ, Pérez JM, Fandos P, Soriguer RC, Velarde R, Fonseca C, Ráez A, Espinosa J, Pettorelli N, Serrano E. Sarcoptic mange breaks up bottom-up regulation of body condition in a large herbivore population. Parasit Vectors 2015; 8:572. [PMID: 26546209 PMCID: PMC4636837 DOI: 10.1186/s13071-015-1188-4] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2015] [Accepted: 10/28/2015] [Indexed: 11/10/2022] Open
Abstract
Background Both parasitic load and resource availability can impact individual fitness, yet little is known about the interplay between these parameters in shaping body condition, a key determinant of fitness in wild mammals inhabiting seasonal environments. Methods Using partial least square regressions (PLSR), we explored how temporal variation in climatic conditions, vegetation dynamics and sarcoptic mange (Sarcoptes scabiei) severity impacted body condition of 473 Iberian ibexes (Capra pyrenaica) harvested between 1995 and 2008 in the highly seasonal Alpine ecosystem of Sierra Nevada Natural Space (SNNS), southern Spain. Results Bottom-up regulation was found to only occur in healthy ibexes; the condition of infected ibexes was independent of primary productivity and snow cover. No link between ibex abundance and ibex body condition could be established when only considering infected individuals. Conclusions The pernicious effects of mange on Iberian ibexes overcome the benefits of favorable environmental conditions. Even though the increase in primary production exerts a positive effect on the body condition of healthy ibexes, the scabietic individuals do not derive any advantage from increased resource availability. Further applied research coupled with continuous sanitary surveillance are needed to address remaining knowledge gaps associated with the transmission dynamics and management of sarcoptic mange in free-living populations.
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Affiliation(s)
- João Carvalho
- Centro de Estudos do Ambiente e do Mar (CESAM), Departamento de Biologia, Universidade de Aveiro, Campus Universitário de Santiago, 3810-193, Aveiro, Portugal. .,Servei d'Ecopatologia de Fauna Salvatge (SEFaS), Departament de Medicina i Cirurgia Animals, Universitat Autònoma de Barcelona, E-08193, Bellaterra, Barcelona, Spain.
| | - José E Granados
- Espacio Natural Sierra Nevada, Carretera Antigua de Sierra Nevada, Km 7, E-18071, Pinos Genil, Granada, Spain.
| | - Jorge R López-Olvera
- Servei d'Ecopatologia de Fauna Salvatge (SEFaS), Departament de Medicina i Cirurgia Animals, Universitat Autònoma de Barcelona, E-08193, Bellaterra, Barcelona, Spain.
| | | | - Jesús M Pérez
- Departamento de Biología Animal, Biología Vegetal y Ecología, Universidad de Jaén, Campus Las Lagunillas, s.n., E-23071, Jaén, Spain.
| | - Paulino Fandos
- Agencia de Medio Ambiente y Agua, Isla de la Cartuja, E-41092, Sevilla, Spain.
| | - Ramón C Soriguer
- Estación Biológica de Doñana (CSIC), Av. Américo Vespucio, s.n., E-41092, Sevilla, Spain.
| | - Roser Velarde
- Servei d'Ecopatologia de Fauna Salvatge (SEFaS), Departament de Medicina i Cirurgia Animals, Universitat Autònoma de Barcelona, E-08193, Bellaterra, Barcelona, Spain.
| | - Carlos Fonseca
- Centro de Estudos do Ambiente e do Mar (CESAM), Departamento de Biologia, Universidade de Aveiro, Campus Universitário de Santiago, 3810-193, Aveiro, Portugal.
| | - Arian Ráez
- Servei d'Ecopatologia de Fauna Salvatge (SEFaS), Departament de Medicina i Cirurgia Animals, Universitat Autònoma de Barcelona, E-08193, Bellaterra, Barcelona, Spain. .,Espacio Natural Sierra Nevada, Carretera Antigua de Sierra Nevada, Km 7, E-18071, Pinos Genil, Granada, Spain.
| | - José Espinosa
- Departamento de Biología Animal, Biología Vegetal y Ecología, Universidad de Jaén, Campus Las Lagunillas, s.n., E-23071, Jaén, Spain.
| | - Nathalie Pettorelli
- Institute of Zoology, Zoological Society of London, Regent's Park, London, NW1 4RY, UK.
| | - Emmanuel Serrano
- Centro de Estudos do Ambiente e do Mar (CESAM), Departamento de Biologia, Universidade de Aveiro, Campus Universitário de Santiago, 3810-193, Aveiro, Portugal. .,Servei d'Ecopatologia de Fauna Salvatge (SEFaS), Departament de Medicina i Cirurgia Animals, Universitat Autònoma de Barcelona, E-08193, Bellaterra, Barcelona, Spain.
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