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Pesquisa : C25.723.127.789.500.707 [Categoria DeCS]
Referências encontradas : 213 [refinar]
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  1 / 213 MEDLINE  
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PMID:27692336
Autor:Orkun Ö; Emir H; Karaer Z
Endereço:Department of Parasitology, Faculty of Veterinary Medicine, Ankara University, Ankara, Turkey. Electronic address: omerorkun@yahoo.com.tr.
Título:Ticks threatening lineage of Anatolian wild sheep (Ovis gmelinii anatolica) and determination of their tick-borne pathogens.
Fonte:Vet Parasitol; 228:77-84, 2016 Sep 15.
ISSN:1873-2550
País de publicação:Netherlands
Idioma:eng
Resumo:We aimed to determine the ticks of the Anatolian wild sheep and to define their tick-borne pathogens while molecularly studying their relationships with those of the domestic sheep. Furthermore, another aim of this study is to investigate tick paralysis resulting in the death of the Anatolian wild sheep. Ticks and blood samples were collected from the wild sheep whilst tick samples were also collected from hares, guinea fowls, chickens, and a turkey living in the Anatolian wild sheep breeding area. While PCR amplification was carried out for the detection of Babesia spp., Theileria spp. and Anaplasma spp. in blood samples, CCHF virus was screened in the tick samples in addition to the above-mentioned pathogens. Theileria spp. was detected in blood samples of 45 wild sheep. A total of 3494 ticks were collected from 52 Anatolian wild sheep, 5 hares, 5 guinea fowls, 2 chickens, and 1 turkey whereas 98 ticks were collected from the ground. B. ovis and T. ovis were detected in tick pools (Rh. bursa and H. excavatum) that were collected from the wild sheep. The paralysis was diagnosed in both of the hind legs of the newborn lambs infested with a great number of ticks. We also report that the tick species (H. excavatum and Rh. bursa) are determined to cause tick paralysis and tick toxicosis, which are associated with mortality especially in lambs. T. ovis and B. ovis were detected and studied for the first time in Anatolian wild sheep and in their ticks. The results of phylogenetic analyses showed that T. ovis and B. ovis isolates are genetically very close to the isolates that were previously obtained from the domestic small ruminants. We show that the Anatolian wild sheep can play the role of a reservoir for T. ovis. The presence of the CCHF virus has also been clearly shown and it has been observed that this virus, which is very pathogenic for humans, is anywise circulating in the region.
Tipo de publicação: JOURNAL ARTICLE


  2 / 213 MEDLINE  
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PMID:27618477
Autor:Pek CH; Cheong CS; Yap YL; Doggett S; Lim TC; Ong WC; Lim J
Endereço:Division of Plastic, Reconstructive and Aesthetic Surgery, Department of Surgery, National University Health System, Singapore.
Título:Rare Cause of Facial Palsy: Case Report of Tick Paralysis by Ixodes Holocyclus Imported by a Patient Travelling into Singapore from Australia.
Fonte:J Emerg Med; 51(5):e109-e114, 2016 Nov.
ISSN:0736-4679
País de publicação:United States
Idioma:eng
Resumo:BACKGROUND: Ticks are blood-sucking arachnids that feed on all classes of vertebrates, including humans. Ixodes holocyclus, also known as the Australian Paralysis Tick, is capable of causing a myriad of clinical issues in humans and companion animals, including the transmission of infectious agents, toxin-mediated paralysis, allergic and inflammatory reactions, and mammalian meat allergies in humans. The Australian Paralysis Tick is endemic to Australia, and only two other exported cases have been reported in the literature. CASE REPORT: We report the third exported case of tick paralysis caused by I. holocyclus, which was imported on a patient into Singapore. We also discuss the clinical course of the patient, the salient points of management, and the proper removal of this tick species. WHY SHOULD AN EMERGENCY PHYSICIAN BE AWARE OF THIS?: With increasing air travel, emergency physicians need to be aware of and to identify imported cases of tick paralysis to institute proper management and advice to the patient. We also describe the tick identification features and proper method of removal of this tick species.
Tipo de publicação: CASE REPORTS; JOURNAL ARTICLE
Nome de substância:0 (Anti-Bacterial Agents); 23521W1S24 (Clavulanic Acid); 804826J2HU (Amoxicillin); O6X5QGC2VB (Cloxacillin)


  3 / 213 MEDLINE  
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PMID:27461350
Autor:Nicolson GP; McGrath A; Webster RA; Li J; Kaye S; Malik R; Beijerink NJ
Endereço:University Veterinary Teaching Hospital Sydney, Evelyn Williams Building B10, The University of Sydney, New South Wales, 2006, Australia.
Título:NT-proBNP and cardiac troponin I concentrations in dogs with tick paralysis caused by Ixodes holocyclus.
Fonte:Aust Vet J; 94(8):274-9, 2016 Aug.
ISSN:1751-0813
País de publicação:England
Idioma:eng
Resumo:OBJECTIVE: The purpose of this study was to determine through measurement of cardiac biomarkers whether there was cardiac involvement in dogs infested with Ixodes holocyclus. METHODS: Dogs with tick paralysis and no-mild (group 1; n = 44) or moderate-severe respiratory compromise (group 2; n = 36) and a control group of dogs (n = 31) were enrolled. Plasma N-terminal pro-B-type natriuretic peptide (NT-proBNP), serum cardiac troponin I (cTnI) and serum creatinine concentrations were determined. For most of the affected dogs SpO2 was determined. RESULTS: SpO2 readings did not differ between groups 1 and 2. Three animals in group 2 had an SpO2 reading <90%. NT-proBNP concentrations were lower in both groups 1 and 2 compared with the control group. There was no difference in cTnI concentrations among groups, although they were elevated in four dogs, including the three dogs in group 2 with SpO2 readings <90%. Creatinine concentrations were within the reference interval for all dogs, but did differ among the groups, with control dogs having the highest values, followed by group 1 and then group 2. CONCLUSION: This study did not detect significant cardiac involvement in dogs with tick paralysis induced by I. holocyclus. Evidence for reduced preload in dogs with tick paralysis was provided by lower NT-proBNP concentrations compared with control dogs. Severe hypoxaemia may not be a significant component of the clinical picture in many of the dogs presenting with tick paralysis. Dogs with severe hypoxaemia may have loss of cardiomyocyte integrity, reflected by elevated cTnI concentrations.
Tipo de publicação: JOURNAL ARTICLE
Nome de substância:0 (Biomarkers); 0 (Peptide Fragments); 0 (Troponin I); 0 (pro-brain natriuretic peptide (1-76)); 114471-18-0 (Natriuretic Peptide, Brain); AYI8EX34EU (Creatinine)


  4 / 213 MEDLINE  
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PMID:27224437
Autor:Lin J; Verma S
Endereço:*Medical Student, Emory University School of Medicine, Atlanta, GA; and †Department of Pediatrics and Neurology, Emory University School of Medicine, Atlanta, GA.
Título:Electrodiagnostic Abnormalities in Tick Paralysis: A Case Report and Review of Literature.
Fonte:J Clin Neuromuscul Dis; 17(4):215-9, 2016 Jun.
ISSN:1537-1611
País de publicação:United States
Idioma:eng
Resumo:OBJECTIVE: To study the electrodiagnostic abnormalities in tick paralysis. METHODS: A 7-year-old girl with acute onset proximal muscle weakness and an engorged dog tick attached to her scalp was evaluated. RESULTS: The routine motor nerve conduction study showed normal compound muscle action potential amplitude. The stimulated jitter analysis of the orbicularis oculi muscle showed normal jitter with no blocking. The quantitative electromyography of the proximal muscles showed decreased mean duration of the motor unit potentials. CONCLUSION: We propose toxin-mediated direct skeletal muscle involvement as one of the reasons for muscle weakness in tick paralysis.
Tipo de publicação: CASE REPORTS; JOURNAL ARTICLE; REVIEW


  5 / 213 MEDLINE  
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PMID:27215214
Autor:Guernier V; Milinovich GJ; Bezerra Santos MA; Haworth M; Coleman G; Soares Magalhaes RJ
Endereço:School of Veterinary Science, The University of Queensland, Gatton Campus, Gatton, 4343, QLD, Australia.
Título:Use of big data in the surveillance of veterinary diseases: early detection of tick paralysis in companion animals.
Fonte:Parasit Vectors; 9(1):303, 2016 05 23.
ISSN:1756-3305
País de publicação:England
Idioma:eng
Resumo:BACKGROUND: Tick paralysis, resultant from envenomation by the scrub-tick Ixodes holocyclus, is a serious threat for small companion animals in the eastern coast of Australia. We hypothesise that surveillance systems that are built on Internet search queries may provide a more timely indication of high-risk periods more effectively than current approaches. METHODS: Monthly tick paralysis notifications in dogs and cats across Australia and the states of Queensland (QLD) and New South Wales (NSW) were retrieved from Disease WatchDog surveillance system for the period 2011-2013. Internet search terms related to tick paralysis in small companion animals were identified using Google Correlate, and corresponding search frequency metrics were downloaded from Google Trends. Spearman's rank correlations and time series cross correlations were performed to assess which Google search terms lead or are synchronous with tick paralysis notifications. RESULTS: Metrics data were available for 24 relevant search terms at national level, 16 for QLD and 18 for NSW, and they were all significantly correlated with tick paralysis notifications (P < 0.05). Among those terms, 70.8, 56.3 and 50 % showed strong Spearman's correlations, at national level, for QLD, and for NSW respectively, and cross correlation analyses identified searches which lead notifications at national or state levels. CONCLUSION: This study demonstrates that Internet search metrics can be used to monitor the occurrence of tick paralysis in companion animals, which would facilitate early detection of high-risk periods for tick paralysis cases. This study constitutes the first application of the rapidly emerging field of Internet-based surveillance to veterinary science.
Tipo de publicação: JOURNAL ARTICLE


  6 / 213 MEDLINE  
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PMID:26802171
Autor:Lysyk TJ; Dergousoff SJ
Endereço:Research and Development Centre, Agriculture and Agri-Food Canada, 5403 1st Avenue South, Lethbridge, AB, Canada T1J 4B1 (timlysyk@gmail.com; Shaun.Dergousoff@AGR.GC.CA), timlysyk@gmail.com.
Título:Can Subclinical Infestation by Paralyzing Dermacentor andersoni (Acari: Ixodidae) Induce Immunity to Tick Paralysis in Sheep?
Fonte:J Med Entomol; 53(3):496-499, 2016 05.
ISSN:1938-2928
País de publicação:England
Idioma:eng
Resumo:Cattle and sheep can develop immunity to paralysis caused by Dermacentor andersoni Stiles; however, this has been reported only in animals that were initially challenged with a high dose of ticks and exhibited clear symptoms of paralysis. Paralysis in sheep occurs in a dose-dependent fashion, with no paralysis occurring in sheep exposed to <0.2 ticks per kilogram sheep weight, and 100% paralysis in sheep exposed to >0.8 ticks per kilogram. This experiment was conducted to determine if sheep exposed to a low dose of ticks would also develop immunity to paralysis. Sheep were exposed to either a low (0.2 ticks per kilogram) or high dose of ticks (0.8 ticks per kilogram), then re-exposed to a second challenge of a paralyzing dose of ticks. All naïve sheep (eight of the eight) were paralyzed, while paralysis occurred in only four of the eight sheep previously exposed to a low dose, and one of the eight sheep previously exposed to a high dose. Results indicate that immunity can develop when sheep are exposed to a subclinical dose of paralyzing ticks, but in a smaller percentage of animals than those exposed to a high dose of ticks. Vaccine development perhaps remains the best option for nonacaricidal control of tick paralysis.
Tipo de publicação: JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T


  7 / 213 MEDLINE  
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PMID:26470937
Autor:Uguz M; Erdogan NM; Eken E
Endereço:Clinic of Infectious Diseases, Silifke State Hospital, Mersin, Turkey. drmustafauguz@gmail.com.
Título:Tick-Induced Facial Palsy.
Fonte:Turkiye Parazitol Derg; 39(3):248-51, 2015 Sep.
ISSN:2146-3077
País de publicação:Turkey
Idioma:eng
Resumo:Ticks are obligate blood-sucking arthropods that exist worldwide. Their targets include all vertebrates and humans. Ticks are harmful to people with regard to transmission in many viral, bacterial, and parasitic infections. In addition to these diseases and toxin-induced neurological complications, tick-induced paralysis is a syndrome related to neurotoxin production, and its mortality ratio in the literature is reported to be approximately 10%. Tick-induced isolated facial paralysis is a rare form of the disease developing because of attachment to the external auditory canal or attachment behind the ear. Our country and region are under risk in terms of included tick habitat for tick-induced paralysis that is responsible particularly for hard ticks. In our article, we aimed to present a case with isolated facial paralysis that occurred after the internal auditory canal was bitten by Hyalomma margintum species belonging to the hard ticks group and to probe the management of this disease.
Tipo de publicação: CASE REPORTS; JOURNAL ARTICLE


  8 / 213 MEDLINE  
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PMID:26359765
Autor:Diaz JH
Endereço:a Louisiana State University Health Sciences Center, School of Public Health , 2020 Gravier Street, New Orleans, Louisiana 70112 United States.
Título:A Comparative Meta-Analysis of Tick Paralysis in the United States and Australia.
Fonte:Clin Toxicol (Phila); 53(9):874-83, 2015 Nov.
ISSN:1556-9519
País de publicação:England
Idioma:eng
Resumo:CONTEXT: Tick paralysis is a neurotoxic envenoming that mimics polio and primarily afflicts children, especially in hyperendemic regions of the Western United States of America (US) and Eastern Australia. OBJECTIVE: To compare the epidemiology, clinical and electrodiagnostic manifestations, and outcomes of tick paralysis in the US versus Australia. METHODS: A comparative meta-analysis of the scientific literature was conducted using Internet search engines to identify confirmed cases of tick paralysis in the US and Australia. Continuous variables including age, time to tick removal, and duration of paralysis were analyzed for statistically significant differences by unpaired t-tests; and categorical variables including gender, regional distribution, tick vector, tick attachment site, and misdiagnosis were compared for statistically significant differences by chi-square or Fisher exact tests. RESULTS: Tick paralysis following ixodid tick bites occurred seasonally and sporadically in individuals and in more clusters of children than in adults of both sexes in urban and rural locations in North America and Australia. The case fatality rate for tick paralysis was low, and the proportion of misdiagnoses of tick paralysis as Guillain-Barré syndrome (GBS) was greater in the US than in Australia. Although electrodiagnostic manifestations were similar, the neurotoxidromes differed significantly with prolonged weakness and even residual neuromuscular paralysis following tick removal in Australian cases compared with US cases. DISCUSSION: Tick paralysis was a potentially lethal envenoming that occurred in children and adults in a seasonally and regionally predictable fashion. Tick paralysis was increasingly misdiagnosed as GBS during more recent reporting periods in the US. Such misdiagnoses often directed unnecessary therapies including central venous plasmapheresis with intravenous immunoglobulin G that delayed correct diagnosis and tick removal. CONCLUSION: Tick paralysis should be added to and quickly excluded from the differential diagnoses of acute ataxia with ascending flaccid paralysis, especially in children living in tick paralysis-endemic regions worldwide.
Tipo de publicação: COMPARATIVE STUDY; JOURNAL ARTICLE; META-ANALYSIS; REVIEW


  9 / 213 MEDLINE  
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PMID:25841899
Autor:Rika-Heke T; Kelman M; Ward MP
Endereço:Faculty of Veterinary Science, The University of Sydney, Private Mailbag 4003, Narellan, NSW 2567, Australia.
Título:The relationship between the Southern Oscillation Index, rainfall and the occurrence of canine tick paralysis, feline tick paralysis and canine parvovirus in Australia.
Fonte:Vet J; 205(1):87-92, 2015 Jul.
ISSN:1532-2971
País de publicação:England
Idioma:eng
Resumo:The aim of this study was to describe the association between climate, weather and the occurrence of canine tick paralysis, feline tick paralysis and canine parvovirus in Australia. The Southern Oscillation Index (SOI) and monthly average rainfall (mm) data were used as indices for climate and weather, respectively. Case data were extracted from a voluntary national companion animal disease surveillance resource. Climate and weather data were obtained from the Australian Government Bureau of Meteorology. During the 4-year study period (January 2010-December 2013), a total of 4742 canine parvovirus cases and 8417 tick paralysis cases were reported. No significant (P ≥ 0.05) correlations were found between the SOI and parvovirus, canine tick paralysis or feline tick paralysis. A significant (P < 0.05) positive cross-correlation was found between parvovirus occurrence and rainfall in the same month (0.28), and significant negative cross-correlations (-0.26 to -0.36) between parvovirus occurrence and rainfall 4-6 months previously. Significant (P < 0.05) negative cross-correlations (-0.34 to -0.39) were found between canine tick paralysis occurrence and rainfall 1-3 months previously, and significant positive cross-correlations (0.29-0.47) between canine tick paralysis occurrence and rainfall 7-10 months previously. Significant positive cross-correlations (0.37-0.68) were found between cases of feline tick paralysis and rainfall 6-10 months previously. These findings may offer a useful tool for the management and prevention of tick paralysis and canine parvovirus, by providing an evidence base supporting the recommendations of veterinarians to clients thus reducing the impact of these diseases.
Tipo de publicação: JOURNAL ARTICLE


  10 / 213 MEDLINE  
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PMID:25794538
Autor:Laufer CB; Chiota-McCollum N
Endereço:Department of Internal Medicine, Keesler Medical Center, Biloxi, MS, 39534, USA, christin.b.laufer@gmail.com.
Título:A Case of Subacute Ataxia in the Summertime: Tick Paralysis.
Fonte:J Gen Intern Med; 30(8):1225-7, 2015 Aug.
ISSN:1525-1497
País de publicação:United States
Idioma:eng
Resumo:Tick paralysis is caused by a neurotoxin secreted in the saliva of a gravid female tick, and manifests with ataxia, areflexia, ascending paralysis, bulbar palsy, and ophthalmoparesis. An 84-year-old man presented in June in coastal Mississippi with several days of subacute ataxia, bulbar palsy, unilateral weakness, and absent deep tendon reflexes. MRI/MRA and extensive serum and cerebrospinal fluid investigations were unrevealing. His symptoms progressed over several days, until his nurse discovered and removed an engorged tick from his gluteal fold. Within hours of tick removal, his subacute symptoms completely resolved. While tick paralysis is rare in adults, it is a condition that internists should be familiar with, particularly in seasons and areas with high prevalence of disease. This case also highlights the importance of performing a thorough skin exam on patients with the aforementioned neurologic abnormalities.
Tipo de publicação: CASE REPORTS; JOURNAL ARTICLE



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