• 제목/요약/키워드: ear mite

검색결과 13건 처리시간 0.032초

Ear mite infestation in a lop-eared rabbit (Oryctolagus cuniculus) and successful treatment with ivermectin

  • Kim, Kyoo-Tae;Lee, Seung-Hun;Kwak, Dongmi
    • 한국동물위생학회지
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    • 제38권2호
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    • pp.137-140
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    • 2015
  • A 2-year-old female lop-eared rabbit (Oryctolagus cuniculus) was presented to the veterinary clinic at a zoo with pruritus, alopecia, and crusting of the ear. Examination of skin scrapes revealed an infestation with the rabbit ear mite, Psoroptes cuniculi. Weekly subcutaneous ivermectin injection over a three-week period resulted in remission of the clinical signs and improvement of the overall conditions of the rabbit.

진딧물과 응애 가해에 의한 옥수수 F1의 수량감소율 과 저항성계통 선발 (Screening of Resistant Lines and Yield Losses to F1 Corn from Feeding by the Aphid and Mite)

  • 이준수;김순권
    • 한국육종학회지
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    • 제42권5호
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    • pp.555-564
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    • 2010
  • 본 연구는 14개 육성 $F_1$을 이용하여 진딧물과 응애 가해에 의한 옥수수의 수량감소율과 저항성 자식계통을 선발하고자 본 시험을 수행하였다. 진딧물 가해에 의한 수량감소율은 종실중(18.4%), 이삭장(10.9%), 이삭직경(1.7%), 100립중(5.4%), 종실 길이(2.3%), 종실 폭(1.5%), 종실 두께(-0.2%)이었다. 조사항목에 대한 수량감소의 상관관계를 분석한 결과 진딧물은 종실중과 이삭직경이 높은 고도의 유의한 정(+)의 상관($r=0.83^{**}$), 그 다음으로 100립중과 종실 길이($r=0.74^{**}$), 종실폭($r=0.69^{**}$)이었다. 반면 이삭장과 종실 두께는 상관관계가 전혀 없는 것으로 확인되었다. 응애 가해에 의한 수량감소율은 종실중(49.7%), 이삭장(16.5%), 이삭직경(7.5%), 100립중(20.7%), 종실 길이(18.9%), 종실 폭(9.5%), 종실 두께(-3.4%)이었다. 진딧물 보다 응애 가해 시 감소율은 종실중 2.7배, 이삭장 1.5배, 이삭폭 3.9배, 100립중 3.9배, 종실 길이 10.5배, 종실 폭이 8배 더 컸다. 반면 종실 두께의 감소율은 응애 보다 진딧물 가해시 -0.7배 더 컸다. 응애의 상관관계에서 종실 길이와 종실 폭이 높은 고도의 유의한 정(+)의 상관관계($r=0.83^{**}$)가 인정되었다. 그 다음으로 100립중과 종실 길이($r=0.74^{**}$), 종실 길이와 종실중($r=0.69^{**}$)이었다. 반면 종실 두께는 어떠한 조사항목과도 상관관계가 없었다. 7가지 조사항목 별 진딧물 가해에 의한 평균감소율 보다 낮은 $F_1$에 많이 이용된 자식계통은 KS7, B68, 61B3, 70A1, KS5이었고, 응애 가해에 의한 평균감소율 보다 낮은 $F_1$에 많이 이용된 자식계통은 KS7, B68, 61B3, 66B2-4, 70A1, 72B2, KS5이었다. 이들 자식계통은 추 후 진딧물 과 응애 저항성 자식계통 육성에 이용될 수 있을 것이다.

개에서 피부개선충(Canine Scabies)과 귀진드기(Ear Mite) 혼합감염에 대한 주 2회 selamectin 적용 일례 (Efficacy of Twice a Week Selamectin Application as a Treatment for Mixed Canine Scabies and Ear Mite Infestation in a Dog)

  • Woo Pil Hoh;A-Young Jeong;Hyo Hoon Jeong;Ki Dong Eom;Tae Ho Oh
    • 한국임상수의학회지
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    • 제19권4호
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    • pp.401-404
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    • 2002
  • 6개월령 수컷 아메리칸 코커스파니엘이 심한 소양감, 탈모 그리고 머리를 심하게 흔드는 증상으로 내원하였다 신체검사에서 전신적으로 가피. 비듬, 구진. 발적의 병변이 관찰되었다. 전반적인 피부검사결과 개선충, 귀진드기, 구균과 Malasseria의 혼합 감염으로 진단하였다. Selamectin 6mg/kg을 주 2회로 총 4회 경부 피부에 적용하였다 마지막 적용 후 14일에 피부를 재검사 하였을 때 개선충과 귀진드기는 관찰되지 않았으며 소양증과 비듬의 증상이 현저하게 개선되었다. 개선충과 귀진드기에 대한 치료가 끝난 후 구균과 Malassezia 치료를 위해 clavamox 와 ketoconazole을 3주간 투여 하였으며 동시에 sebolytic 샴푸와 chlorohexidine 샴푸를 3주동안 주 2회 실시하였다. 2개월 후 피부 증상은 현저히 감소하였고 피부 병변은 회복되었다. 이 치료법에 따른 selamectin 적용은 고가이지만 개선충과 귀진드기가 감염된 개에서 매우 효과적이며 임상적으로 scabies 감염증의 치료적 진단법으로 유용한 제제로 판단된다

귀 피부병이 있는 애완견에서 진드기 감염률 (Mite infestation rate of pet dogs with ear dermatoses)

  • 박건수;박진성
    • Parasites, Hosts and Diseases
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    • 제34권2호
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    • pp.143-150
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    • 1996
  • 애완견에서 진드기에 의한 피부병의 빈토 및 원인 진드기를 조사하고 인체의 소양성 피부 질환의 원인으로 애완견 진드기의 의의를 조사하기 위하여 1990년 1월부터 1995년 12월까지 청운동물병원에서 귀 부위에 피부병이 있었던 970마리의 애완견의 털과 인설에서 진드기를 수세법으로 검출하고 분류하였으며 가족의 소양성 피부질환 유무를 조사하였다. 애완견 피부염의 원인으로 추정되는 진드기로는 Qctodectes Wnotis Hering. 1,838 (귀진드기)와 Sarcoptes canis Gerlach. 1,857 (개옴진드기)가 검출되었으며 귀진드기는 970마리의 애완견 중 382마리 (39.4%)에서 총 2 117마리가 검출되었다. 개옴진드기는 970마리의 애완견 중 3마리 (0.3%)에서 총 30마리가 검출되어 원인 진드기가 검출된 애완견은 970마리 중 385마리 (39. 7%)이었다. 귀진드기가 검출된 382마리의 애완견 사육 가족 중 2가족에서 소양성 피부질환이 발생하였으나 귀진드기와는 관련이 없었으며 개옴진드기가 검출된 3마리의 애완견 사육 가족 중 2가족에서 개옴진드기에 의한 것으로 추정되는 피부염이 발생하였다. 그러므로 본 저자들은 귀진드기가 애완견에서 가장 흔히 검출되는 진드기이지만 사람에게 전파되어 피부염을 유발하지 않으며 개옴진드기는 감염률은 매우 낮지만 사람에 전염성이 강함을 확인하였다.

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세 마리 애완 토끼의 귀진드기 감염증에 imidacloprid와 permethrin 합제의 이용 (Use of a Combination Imidacloprid and Permethrin for Psoroptic Mite Infestation in Three Pet Rabbits)

  • 김상훈;최경하;김덕환
    • 한국임상수의학회지
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    • 제26권6호
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    • pp.622-624
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    • 2009
  • 토끼에서 귀진드기는 딱지와 가려움증을 동반하는 심한 외이염을 유발할 수 있다. 본 증례 보고에서는 귀진드기에 감염된 세 마리의 토끼에게 10% imidacloprid와 50% permethrin 합제를 체중에 관계없이 0.4 ml으로 치료했다. 치료 1주 후 토끼들은 딱지와 성충, 충란없이 경미한 가려움증만 보였다. 치료 4주 후 토끼들에서 임상 증상이나 성충, 충란은 관찰되지 않았다. 모든 토끼들이 치료 8주 후 부작용없이 본 합제로 성공적으로 치료되었다. 본 증례 보고는 imidacloprid와 permethrin 합제가 애완 토끼의 귀진드기에 효과적이었다는 것을 보여준다.

First Feline Case of Otodectosis in the Republic of Korea and Successful Treatment with Imidacloprid/Moxidectin Topical Solution

  • Ahn, Ah-Jin;Oh, Dae-Sung;Ahn, Kyu-Sung;Shin, Sung-Shik
    • Parasites, Hosts and Diseases
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    • 제51권1호
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    • pp.125-128
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    • 2013
  • In April 2010, pruritic symptoms were recognized in 3 privately-owned Siamese cats raised in Gwangju, Korea. Examination of ear canals revealed dark brown, ceruminous otic exudates that contain numerous live mites at various developmental stages. Based on morphological characteristics of adult mites in which caruncles were present on legs 1 and 2 in adult females and on legs 1, 2, 3, and 4 in adult males while the tarsus of leg 3 in both sexes was equipped with 2 long setae, the mite was identified as Otodectes cynotis. Ten ear mite-free domestic shorthaired cats were experimentally infected with O. cynotis to evaluate the efficacy of 10% imidacloprid/1% moxidectin spot-on. Live mites were recovered from 1 of 10 treated cats on day 9 post-treatment (PT) while no live mites were observed from the ear canals of treated cats on days 16 and 30 PT. The efficacy of 10% imidacloprid/1% moxidectin spot-on on O. cynotis in cats was, therefore, 90% on day 9 and 100% on days 16 and 30 PT. This is the first report of otodectosis in 3 cats naturally infested with O. cynotis in Gwang-ju, Korea. Both natural and experimental infestations were successfully treated with 10% imidacloprid/1% moxidectin spot-on.

Anti-atopic dermatitis properties of Cordyceps militaris on TNFα/IFNγ-stimulated HaCaT cells and experimentally induced atopic dermatitis in mice

  • Choi, Eun-Ju;Park, Bohyeon;Lee, Joohyung;Kim, Jooyoung
    • 운동영양학회지
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    • 제24권4호
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    • pp.7-14
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    • 2020
  • [Purpose] This study evaluated the anti-atopic dermatitis (AD) properties of Cordyceps militaris (CM) aqueous extract in keratinocytes in vitro and in vivo. We investigated the nutraceutical composition of the CM extract, including its protein, carbohydrate, and selected phytochemical content. [Methods] The expression of pathogenic cytokines in keratinocytes was assayed using an in vitro model. The CM extract downregulated extracellular signalregulated kinase 1/2 (ERK1/2) and p38 kinase expression in TNFα/IFNγ-stimulated HaCaT cells. We also established an in vivo AD model by repeatedly exposing the ears of mice to local Dermatophagoides farinae extract (DFE; house dust mite extract) and 2,4-dinitrochlorobenzene (DNCB). The epidermal and dermal ear thickness, mast cell infiltration, and serum immunoglobulin levels were measured following a 4-week oral administration of the CM extract. [Results] Histopathological examination showed reduced epidermal/dermal thickness and mast cell infiltration in mouse ears. The CM extract also suppressed serum immunoglobulin levels and gene expression of T helper (Th)1/Th2 cytokines in mouse ear tissue. [Conclusion] These results suggest that the CM extract may be useful for the treatment of AD-like skin lesions.

Morphologic and Molecular Characterization of Psoroptes ovis from Pet Rabbits in South Korea

  • Md Ashraful Islam;Obaidul Islam;Md Sodrul Islam;Sungryong Kim;Mohammed Mebarek Bia;Seongjun Choe;Ki–Jeong Na
    • 한국임상수의학회지
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    • 제41권2호
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    • pp.88-94
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    • 2024
  • Pet rabbits are affected by the highly contagious ectoparasite Psoroptes (P.) ovis, which carries significant economic implications for the global rabbit industry. Accurate identification of the mite species remains essential to implement effective treatment and control strategies. Two approximately one-year-old female pet rabbits were admitted to the Veterinary Teaching Hospital of Chungbuk National University due to excessive scratching of the ears and the presence of waxy debris within the ear canals. Mites were isolated from the waxy debris extracted from the ear canals and subsequently identified as Psoroptes spp. through microscopic examination. Species confirmation was achieved through mitochondrial cytochrome c oxidase subunit 1 (cox1) gene analysis. The analysis revealed the mites to be P. ovis based on cox1 gene sequences. The deposited GenBank accession numbers for these sequences are OR985022 and OR985023. This represents the first report of mitochondrial cox1 gene sequences of P. ovis isolated from pet rabbits in South Korea.

Galgeun-tang, an Herbal Formula, Ameliorates Atopic Dermatitis Responses in Dust Mite Extract-treated NC/Nga Mice

  • Ha, Hyekyung;Lee, Jun Kyoung;Lee, Mee-Young;Lim, Hye-Sun;Shin, Hyeunkyoo
    • 대한한의학회지
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    • 제34권4호
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    • pp.1-11
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    • 2013
  • Objectives: Galgeun-tang (GGT, gegen-tang, kakkon-to), an herbal formula, is used to treat the common cold, fevers, headaches, hangovers and neck and upper back stiffness. The drugs currently used to treat atopic dermatitis (AD) are limited by the significant adverse effects associated with their long-term usage. The need to efficiently manage the AD response while reducing side effects has led to the development of alternative remedies. Methods: To assess the effects of GGT on AD, the anti-inflammatory and anti-AD properties of GGT were evaluated in both in vitro and in vivo systems. Results: Nitric oxide (NO) and histamine production on lipopolysaccharide (LPS)-treated RAW264.7 cells and phorbol-12 myristate 13-acetate (PMA)/A23187-treated MC/9 cells, respectively, were inhibited by GGT. GGT reduced thymus and activation-regulated chemokine (TARC/CCL17) release on TNF-${\alpha}$/IFN-${\gamma}$ stimulated HaCaT cells in a dose-dependent manner. GGT reduced both plasma levels of IgE and histamine and the dermatitis score in house dust mite induced atopic dermatitis-like lesions on NC/Nga mice. However, there were no significant histopathological differences observed between the GGT group and the AD-induced group, such as AD-like lesions in the dorsal skin or ear or mast cell infiltration in the dorsal skin. Conclusions: These results indicate that GGT inhibits chemokine production by keratinocytes and the atopic dermatitis response in NC/Nga mice, suggesting that GGT may be useful as a therapeutic remedy for treating AD and allergic inflammation-related diseases.

가미청심연자탕(加味淸心蓮子場)이 NC/Nga mice의 아토피양(樣) 피부염에 미치는 영향 (Effect of Kami-chungsimyeunjatang on atopic dermatitis-like skin lesions induced in NC/Nga mice by mite antigen stimulation)

  • 한재경;김윤희;윤지연
    • 대한한방소아과학회지
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    • 제21권1호
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    • pp.87-116
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    • 2007
  • Objectives : The purpose of this study is to examine of the effect of Kami-chungsimyeunjatang(KCSYJT) medicine on the atopy eruption control. Methods : The expression of IgE, IL-4, IL-6, $TNF-{\alpha}$, IgG2b, IgM, IgG2a and IgG1 level in serum, and $IFN-{\gamma}$ production by KCSYJT were analyzed. CD3e+/CD69+, CD4+/CD25+, B220+/IgE+ and B220+/CD23+ positive cells by flow cytometry in splenocytes were assayed and the revelation of CD3e+/CD69+, CD4+/CD8+ and CD4+/CD25+ marker in PBMC, spleen and DLN were observed. The outturn of IL-4, eotaxin 2, CCR3, TARC mRNA in splenocytes werw observed. We also analyzed NC/Nga mice's ear, DLN and neck-back skin after biopy and dye by H&E, and toluidine staining (mast cells marker) method, measured about epidermis and dermis part in comparison with control group. Results : NC/Nga mice suffered from dermatitis very similar to human AD with IgE hyperproduction. Specially, result that measure IgE content in serum on 8 weeks, 12 weeks, 16 weeks decreased remarkably than control group. After experiment end, result that observe revelation CD3e+/CD69+, CD4+/CD8+ and CD4+/CD25+ marker in PBMC, spleen and DLN establishment observed recover as normal with political background. And decreased than result control group which measure IL-4, IL-6, $TNF-{\alpha}$, IgG2b, IgM, IgG2a, IgG1 level in serum, and $IFN-{\gamma}$ production secreted in Th1 cell displayed increase by KCSYJT medicines. Ear thickness decrease than control group in result that observe effect that get in ear of a NC/Nga mouse. Course inflammation immunocyte etc.. permeated of result that effect that KCSYJT medicines get to NC/Nga mouse's skin establishment analyzes ear, DLN and neck-back skin after biopy, and dye by H&E, and toluidine staining (mast cells marker) method decreased about epidermis. and inflammation of dermis part remarkably than control group. Immunohistochemical examination of the skin lesion showed decrease by KCSYJT medicines on numbers of mast cells (CCR3) and CD4+ T cells containing IL-4 necessary for IgE. Conclusions : Th1 cell and Th2 cell was observed to be shift by secretion amount of IL-4 and $IFN-{\gamma}$ by KCSYJT medicines. Therefore, the KCSYJT medicine turned out to be useful in allergy autoimmune disease.

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