• 제목/요약/키워드: Experimental infection

검색결과 1,058건 처리시간 0.036초

역전사중합효소연쇄반응을 이용한 개심장사상충의 검출 (Detection of Dirofilaria immitis by Reverse Transcription Polymerase Chain Reaction in Canine)

  • 이영준;박진호;권오덕;이주목
    • 한국임상수의학회지
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    • 제16권1호
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    • pp.177-181
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    • 1999
  • This study was undertaken to clarify the more accurate detecting method of Dirofilaria immitis. Seven dogs, average 7.47 years old, confirmed with Dirofilaria immitis infection by modified Knott's method were used as the experimental animals. cDNA was constructed using oligodT(15) primer after extracting total RNA from the blood of dogs that were confirmed with Dirofilaria immitis infection. As a result of polymerase chain reaction with template using constructed cDNA, the predicted products of a 378 base-pair DNA fragment was amplified. From these results, RT-PCR was more sensitive and effective than modified Knott's method to detect Dirofilaria immitis in dogs.

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Update on pertussis and pertussis immunization

  • Hong, Jung-Yun
    • Clinical and Experimental Pediatrics
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    • 제53권5호
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    • pp.629-633
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    • 2010
  • Pertussis is a highly contagious respiratory tract disease caused by $Bordetella$ $pertussis$ infection. The clinical manifestation of this infection can be severe enough to cause death. Although pertussis has been supposed to be a vaccine-preventable disease ever since the widespread vaccination of children against pertussis was started, since the 1990s, cases of pertussis and related fatalities are on the rise, especially in countries with high vaccination coverage. In Korea, there have been no deaths due to pertussis since 1990, and the vaccination rate continues to be approximately 94%. However, the number of pertussis cases reported to the Korea Center for Disease Control and Prevention has tended to increase in the 2000s, and in 2009, there was an obvious increase in the number of pertussis cases reported. This review aims to present the latest information about the pathogenesis, diagnosis, treatment, and prevention of pertussis.

출생 직후 혈변과 구토 증상이 시작된 Amoebiasis 신생아 1례 (A case of neonatal amoebiasis with after-birth vomiting and bloody stool)

  • 강지민;김소영
    • Clinical and Experimental Pediatrics
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    • 제50권12호
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    • pp.1257-1260
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    • 2007
  • 저자들은 출생 직후부터 심한 혈변과 구토 증상을 보인 신생아의 위액과 변에서 아메바를 확인하여 자궁 내에서 감염된 것으로 판단되는 신생아 아메바증을 경험하고 치료하였기에 문헌 고찰과 함께 보고하는 바이다.

국내 마이코플라스마와 클라미디아 감염 - 폐렴을 중심으로 - (Mycoplasma and chlamydia infection in Korea)

  • 김경원;김규언
    • Clinical and Experimental Pediatrics
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    • 제52권3호
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    • pp.277-282
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    • 2009
  • Pneumonia, which usually requires hospitalization for children, is caused by various pathogens. According to recent surveys, the prevalence of atypical pneumonia caused by Mycoplasma or Chlamydia has increased, especially in preschool children. Also, the evidence has been accumulated that Mycoplasma or Chlamydia infection is associated with asthma including both inception and exacerbation. Therefore, it is important to consider how the clinical aspects of Mycoplasma pneumonia have changed. In particular, Chlamydia pneumonia, which has not been prevalent in Korea, needs greater attention.

Mycoplasma pneumoniae associated stroke in a 3-year-old girl

  • Kim, Gun-Ha;Seo, Won Hee;Je, Bo-Kyung;Eun, So-Hee
    • Clinical and Experimental Pediatrics
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    • 제56권9호
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    • pp.411-415
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    • 2013
  • Infectious diseases precede a significant proportion of acute ischemic strokes in children. Here, we report a case of acute ischemic stroke in a 3-year-old girl with a Mycoplasma pneumonia-associated respiratory tract infection. She developed an acquired prothrombotic state of protein S deficiency and had increased fibrinogen and fibrinogen degradation product levels and increased titer of antinuclear antibodies. However, these conditions were completely alleviated at the 1-month follow-up examination. Infection with M. pneumoniae may cause a transient prothrombotic state that can potentially cause a thrombus.

점액포자충(粘液胞子虫) Thelohanellus kitauei에 의한 이스라엘잉어의 장포자충증(腸胞子虫症) I. 수평감염(水平感染) (Studies of Thelohanellus infection in carp, Cyprinus carpio. I. Experimental induction of Thelohanellosis.)

  • 전세규;최동림;박수일
    • 한국어병학회지
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    • 제1권2호
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    • pp.111-116
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    • 1988
  • There occurred a large quantity of death of the cultured carp (Cyprinus carpio) in net pens in Lake Taechong and Lake Chungju(Chungcheongbuk-do) from July through Sep., 1987. The carp were two-year-old and 500g to 2,500g in body weight. As a result of biopsy of dying carp, 1 through 10 egg-shaped giant cysts with 12 through 60mm in diameter were observed in their intestine per one carp. The author suggested that the carp were died from blockade of intestinal tract and following enteritis by the giant cysts. The giant cysts were filled with numerous mature Thelohanellus genus spores confirmed to Thelohanellus kitauei after following examination. In this case the author could find out this disease was spread by transverse infection following infestation in net pens of fingerling fish farms.

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A case of acute necrotizing encephalopathy associated with parainfluenza virus infection

  • Kim, Yoo-Na;You, Su-Jeong
    • Clinical and Experimental Pediatrics
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    • 제55권4호
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    • pp.147-150
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    • 2012
  • Acute necrotizing encephalopathy (ANE) may be suspected when a young child presents with abrupt onset of altered mental status, seizures, or both. Definitive clinical diagnosis is based on magnetic resonance imaging (MRI) results. ANE is associated with influenza virus infections. Preliminary data suggests that up to 25% of ANE patients die, and up to 25% of ANE survivors develop substantial neurologic sequelae. Here, we describe a case of a comatose 22-month-old girl who was admitted to our hospital because of febrile illness and seizures. On day 13 of her illness, she died from ANE associated with infection from parainfluenza virus. Brain MRI results indicated diffuse bilateral symmetric signal changes in both basal ganglia, thalami, periventricular white matter, pons, and cerebral white matter, as well as generalized swelling of the brain.

Trichomonicidal Activity of Herbal Extracts Used in Traditional Medicine in Korea

  • Kim Youn-Chul;Ryu Jae-Sook;Kim Hyoung-Jun;Choi Kyung-Min;Kim Hye-Sook;Park Hyun
    • 동의생리병리학회지
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    • 제20권1호
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    • pp.171-173
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    • 2006
  • Trichomonicidal activity of thirty methanolic herbal extracts used in traditional medicine in Korea was evaluated. Trichomonas vaginalis was used as experimental model, and anti-Trichomonas activity was determined over cultures of the parasite in TYM Diamond medium. Six methanolic extracts such as Acanthopanacis Cortex, Agrimoniae Herba, Pulsatillae Radix, Sanguisorbae Radix, Sophorae Radix, and Torilidis Fructus showed more than 50% trichomonicidal activity at the concentration of 200 g/ml. These extracts were further fractionated into n-butanol soluble and aqueous phases. Except for Acanthopanacis Cortex, all of n-butanol soluble phases showed potent trichomonicidal activity, while none of aqueous phases exhibited trichomonicidal activity.

Effect of Oral Immunization with Liposome-Entrapped Bacterial Antigen on Protection Against Experimental Aeromonas Hydrophila

  • Choi, Sang-Hoon;Oh, Chan-Ho
    • Animal cells and systems
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    • 제11권1호
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    • pp.33-38
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    • 2007
  • Liposome-entrapped atypical Aeromonas hydrophila antigen was prepared to investigate the potential protective efficacy for A. hydrophila infection. Carp (Cyprinus carpio) were immunized orally with liposome-entrapped A. hydrophila antigen. After immunization, significantly more antigen-specific antibodies were detected in serum, intestinal mucus and bile than non-immunized control group. The immunized carp were then challenged by immersion with $1{\times}10^{6}$ cfu/ml of A. hyrdophila for 60 min. Of the eight non-immunized carp, three carp died (62.5% survival), whereas five out of six (83.5%) of the immunized survived. Furthermore, development of skin ulcers was significantly inhibited in carp immunized with liposomes containing A. hydrophila antigen. These results suggest that liposomes containing A. hydrophila antigen have a potential for induction of protective immune responses against atypical A. hydrophila infection and also suggest the possibility of developing a vaccine that may ultimately be used for prevention of fish diseases.

Comparative analysis of antibody responses to BNT162b2, ChAdOx1, and CoronaVac vaccines in the Albanian population over the pandemic years 2021 to 2022

  • Genc Sulcebe;Margarita Kurti-Prifti;Erkena Shyti;Jonida Dashi-Pasholli;Fabian Cenko;Alban Ylli
    • Clinical and Experimental Vaccine Research
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    • 제13권1호
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    • pp.63-67
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    • 2024
  • This repeated cross-sectional study with two independent sample populations compared the antibody response to severe acute respiratory syndrome coronavirus 2 vaccines in Albania in July-August 2021 and 2022. In 2021, it found higher anti-spike-1 seropositivity and antibody levels in fully vaccinated individuals, especially with BNT162b2 and ChAdOx1 and to a lesser degree with CoronaVac. By 2022, all single-dose recipients showed high antibody responses, suggesting natural infection-enhanced immunity. The study indicates a significant evolution in the antibody response to different coronavirus disease 2019 vaccines and suggests that a single vaccine dose, coupled with natural infection, might suffice to maintain adequate immunity levels in an endemic scenario.