• Environmental Analysis Health and Toxicology
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• 제21권4호
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• pp.349-355
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• 2006

Dextromethorphan hydrobromide (DXM) has been widely used as a nonopioid antitussive drug with low toxicity and low potential for drug dependency. DXM is a psychotropic drug since 2003 in our country. This study was performed to investigate the immunotoxicity induced by abuse of DXM. Mice were orally exposed to DXM dissolved in saline as concentration of 30, 60, and 120 mg/kg b.w. before (day-2) or after (day+2) immunization (OVA-antigen, day 0). Thereafter, we measured the increased rate of body weight, relative weight of organ (thymus, spleen, liver, kidney) and OVA-specific IgM level in sera. In addition, mouse splenocytes were exposed to various concentration of DXM $(0.001{\sim}100{\mu}M)$ and cultured with B cell mitogen (LPS) and splenocytes proliferations (SP) were measured by MTT-assay. Thymus-weight were slightly changed on day 9 after administration of DXM, but body-, spleen-, liver-, and kidney-weight were not different between control group and DXM-treated group. SP to LPS were significantly decreased at high concentration $(100{\mu}M)$ when compared with controls. When DXM was administered before or after immunization with OVA-antigen, OVA-specific IgM levels were significantly lowered in a dose-dependent manner. These results indicate that DXM nay depress the primary humoral immune response to the initial antigenic challenge.

• Parasites, Hosts and Diseases
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• 제23권2호
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• pp.293-299
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• 1985

병원성 자유생활 아메바인 Naegleria fowleri를 CGVS 배지에서 무균적으로 배양하여 그 영향형을 복강내로 주입하여 인위적으로 면역시킨 마우스에 본 원충율 비강내로 감염시켰을때 방어면역이 생성되는지를 관찰하였다. 감염 8일후부터 마우스가 사망하기 시작하였고 이 마우스의 뇌에서 전형적인 원발성 아메바성 뇌수막염이 발생했음을 관찰할 수 있었다. N. fowleri 감염으로 인한 마우스의 사망율은 대조군에서 보다 네가지 항원으로 면역시킨 실험군에서 모두 현저히 낮았으며, 감염에서 사망할 때까지의 생존기간도 면역시킨 실험군에서 대조군보다 연장되었으나, N. fowleri 세포막항원으로 면역시킨 실험군에서는 대조군과 비교할때 차이가 없었다. 또한 N. gruberi 영양형으로 면역시킨 실험군에서도 생존기간이 연장되었다. 이상의 성적을 요약하면 N. fowleri를 마우스 복강내로 주입시켜 면역시킬 때 방어면역이 생성됨을 알 수 있었다.

• Clinical and Experimental Vaccine Research
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• 제12권1호
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• pp.25-31
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• 2023

Purpose: Since late 2019, the novel coronavirus disease has been a global concern, and alongside preventive strategies, including social distancing and personal hygiene, vaccination is now the primary hope for controlling the pandemic. Sputnik V is an adenovirus vector vaccine used against coronavirus disease 2019 (COVID-19) among Iranian health care providers, and there is a lack of information regarding the Adverse Events Following Immunisation (AEFI) by Sputnik V among the Iranian population. The present study aimed to evaluate AEFI by Sputnik V vaccine among Iranian population. Materials and Methods: Every member of the Islamic Republic of Iran Medical Council received their first dose of the Sputnik V vaccine in Mashhad (Iran) and was referred to receive their second dose enrolled in the present study and asked to fill an English language checklist asking about development of any AEFI following immunization with the first dose of Sputnik V vaccine. Results: A total number of 1,347 with a mean±standard deviation age of 56.2±9.6 years filled the checklist. Most of the participants were male (838 [62.2%]). The present study demonstrated that immunization with the first dose of Sputnik V results in at least one AEFI in 32.8% of the Iranian medical council members. Most of the AEFI was related to musculoskeletal symptoms, including myalgia. By considering the age of 55 years as a cut-off point, individuals younger than 55 had a higher rate of AEFI (41.3% vs. 22.5%, p=0.0001). Male gender, use of analgesics, beta-blockers, and previous COVID-19 infection have a lower chance of developing AEFI (p<0.05). Conclusion: The present study demonstrated that most of the AEFI was related to musculoskeletal symptoms, including myalgia, and older individuals, male gender and those receiving analgesics and beta-blockers were less likely to develop AEFI following immunization with the first dose of Sputnik V.

• 보건교육건강증진학회지
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• 제19권2호
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• pp.127-138
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• 2002

Objective: This prospective survey assessed factors associated with influenza vaccination behaviors among high-risk adults. Methods: 106 patients aged 65 or high risk for complications of influenza were interviewed to identify influencing factors to vaccination. Six potential consequences of Influenza infection and nine factors of vaccination were analysed between compliance and non-compliance groups. Results: Among the 106 patients, the vaccination rate was 62.3%. The rate of the group under the sixties was 37.0010, but the rate over the sixties was 88.5%. Factors in dependently associated with both influenza vaccination behaviors included older age, chronic disease, and especially, related to factors in older age were having positive attitudes toward immunization, perceived severity of infection and willingness to comply with the provider's recommendation. Conclusions: Emphasis on provider recommendations and the knowledge and attitudes of influenza infection and vaccination may enhance influenza vaccination rates in the organized vaccination programs.

• 한국축산식품학회지
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• 제27권2호
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• pp.222-227
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• 2007

주요 가금티푸스 유발균인 Salmonella gallinarum에 대항하는 항체를 계란으로부터 효율적으로 얻기 위하여 사료 첨가제, 산란계에 백신 주사 시 adjuvant 종류, target균 외의 첨가균의 여부에 따른 계란 내의 면역 단백질 생산을 비교 측정하였다. 참숯의 급여에 의한 면역처리구의 specific IgY 함량을 보면 0.5% 참숯을 급여한 처리구가 가장 높은 함량을 나타내었으며, specific IgY의 생산에 참숯의 급여가 큰 영향을 미치는 것으로 나타났다. Adjuvant 처리에 따른 total IgY 함량의 변화는 거의 없는 것으로 나타났으나 specific IgY는 Freund's adjuvant를 사용하여 백신 처리한 처리구에서 높게 나타났다. Adjuvant 사용 시 결핵균을 같이 첨가한 경우 더 많은 specific IgY가 생성되었으나, 수산화 알미늄 처리구에서는 결핵균 첨가에 의한 영향이 나타나지 않았다. 15주령에 면역처리를 해준 경우 21주령에 면역처리를 해준 경우 보다 산란율이 높았으며, 사료에 참숯을 첨가한 경우 일반사료 급여군에 비해 산란율저하가 완화되었다.

• Journal of Veterinary Science
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• 제21권5호
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• pp.80.1-80.13
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• 2020

Background: In suckling piglets, transmissible gastroenteritis virus (TGEV) causes lethal diarrhea accompanied by high infection and mortality rates, leading to considerable economic losses. This study explored methods of preventing or inhibiting their production. Bovine antimicrobial peptide-13 (APB-13) has antibacterial, antiviral, and immune functions. Objectives: This study analyzed the efficacy of APB-13 against TGEV through in vivo and in vitro experiments. Methods: The effects of APB-13 toxicity and virus inhibition rate on swine testicular (ST) cells were detected using 3-(4,5-dimethylthiazol-2-yl)-2, 5-diphenyl tetrazolium bromide (MTT). The impact of APB-13 on virus replication was examined through the 50% tissue culture infective dose (TCID₅₀). The mRNA and protein levels were investigated by real-time quantitative polymerase chain reaction and western blot (WB). Tissue sections were used to detect intestinal morphological development. Results: The safe and effective concentration range of APB-13 on ST cells ranged from 0 to 62.5 ㎍/mL, and the highest viral inhibitory rate of APB-13 was 74.1%. The log₁₀TCID₅₀ of 62.5 ㎍/mL APB-13 was 3.63 lower than that of the virus control. The mRNA and protein expression at 62.5 ㎍/mL APB-13 was significantly lower than that of the virus control at 24 hpi. Piglets in the APB-13 group showed significantly lower viral shedding than that in the virus control group, and the pathological tissue sections of the jejunum morphology revealed significant differences between the groups. Conclusions: APB-13 exhibited good antiviral effects on TGEV in vivo and in vitro.

• Pediatric Infection and Vaccine
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• 제18권2호
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• pp.124-134
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• 2011

목 적:우리나라의 B형 간염 조절을 위한 초창기 예방접종 정책과 1회용 주사기를 포함한 혈액매개질환의 감염원이 될 수 있는 기구 사용 정책에 관한 자료를 수집, 정리하여 향후 정책 수립 및 평가에 활용할 수 있도록 하였다. 방 법:국내 학회지 또는 논문, 정부 웹사이트, 전산화된 주요 일간신문 등을 검색하여 수집된 자료들의 내용을 확인하였다. 자료의 내용에 따라 정부의 B형 간염 조절 정책, 학교에서의 B형 간염 단체 예방접종 사업, B형 간염 백신 사용 상황, 1회용 주사기를 포함 혈액매개질환의 전파 가능성이 있는 기구 사용에 관한 정책 등 네 가지 주제로 나누어 각각에 대해 시기별 정책 변화를 정리하였다. 결 과: 1980년대 초 B형 간염에 대한 사회적 관심이 컸기 때문에 B형 간염 백신이 신속히 도입, 개발되었으며, 1983년 말에 'B형 간염 퇴치를 위한 5개년 계획'이 수립되어 1984-5년 2년간에만 B형 간염 백신을 접종한 사람은 약 600만명이었다. 그러나 접종 대상이 신생아가 아닌 성인에 초점을 맞추었기에 전문가들의 반론에 따라 2년만에 계획은 백지화되었다. 이후 학교 단체 예방접종 사업이 진행되고, 1995년에는 국가 필수예방접종에 포함되는 등 신생아 중심의 예방접종 정책이 유지되었다. 1회용 주사기의 사용은 1980년대 초부터 권고 되었으나 1985년이 돼서야 법제화되었다. 결 론:우리나라에서의 B형 간염 감염 관리에 대한 성공 요인은 B형 간염 백신의 조기 도입 및 대량 접종, 높은 접종률, 1회용 주사기 사용 등이 종합적으로 작용하여 이루어진 것이라 생각된다. 그러나 이를 뒷받침할만한 공식적 자료가 너무 부족하다. 따라서 정부가 보유하고 있는 모든 감염 관련 자료들의 정리와 전산화 작업이 매우 시급하다고 여겨진다.

• 종양간호연구
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• 제11권3호
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• pp.193-199
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• 2011

Purpose: This study was aimed to examine mothers'knowledge about human papillomavirus (HPV)vaccination to prevent cervical cancer in Korea. Methods: From September 20 to October 10 2011, 101 mothers who have adolescent girls were surveyed with questionnaires about their general characteristics, the knowledge of HPV vaccine, inoculation rate and vaccination-related factors of their daughters. Results: The percentage of correct answers for HPV vaccine knowledge was 24.2% and the HPV vaccination rate was only 5.9%. HPV vaccine knowledge score of the vaccination group was significantly higher than that of the non-vaccinated group. Mothers said that the reasons why they didn't vaccinate their daughters against the HPV was the financial burden, the lack of HPV knowledge, and worries about possible side effects. The participants addressed that they understood the appropriate age for vaccination was sixteen. Conclusion: We recommend that more educational and promotional efforts need to be given for mothers in order to improve their knowledge of HPV vaccination and to increase the performance rates of HPV immunization against cervical cancer for their daughters.

• 한국가축번식학회지
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• 제14권3호
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• pp.157-164
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• 1990

Anti-progesterone monoclonal antibody injected intraperitonially as a single dose(100$\mu\textrm{g}$) 48hours post coitum(p.c.) almostly blocked pregnancy in ICR mice. The blocking rate of pregnancy in mice treated with antibody were decreased proportionally according to dose of antibody injected ; the rate were 60%, 57% and 17% as the antibody of 10$\mu\textrm{g}$, 50$\mu\textrm{g}$ and 100$\mu\textrm{g}$ were injected respectively. Blood serum progesterone concentration was greatly increased(21 times) after treatment(100$\mu\textrm{g}$), by virtue of high-affinity binding by antibody in circulation of non-pregnant mice in coompared with that of control group at day 10 p.c.. The concentration was about 1.6 times higher in the pregnant mice than in the non-pregnant mice in antibody treated group. In control group, the progesterone concentration was over 7 times higher in the pregnant mice than in non-pregnant mice at day 5 p.c..

• 대한수의학회지
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• 제33권1호
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• pp.101-108
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• 1993

To examine the effects of vaccination against Babesia gibsoni(B gibsoni) infection in dogs, 15 normal mixed-breed dogs(5 months to 1 year old) were divided into 3 groups with 5 dogs in each group. One of them was selected as control group(group A) and other were selected as experimental groups(group B and C). The group B was vaccinated with antigen which were mixed 0.2% of formalin treated B gibsoni and sonicated one. The group C was inoculated Theileria sergenti as a non-specific antigen. The results obtained in this experiment were summarized as follows; 1. After first vaccination, antibody titers of group B and C were increased 5 times(1:200) than those of control group(1 : 40). The antibody titers of group C were increased more than that of group B after second vaccination. When challenged with the living protozoa(Babesia gibsoni), the antibody titers of C group were elevated higher than that of B group and maintained steadly. Those were not exceeded over 1 : 5,000 for 4 weeks in all 3 groups. 2. After challenge, the peak time of the parasitemia appeared nearly on the 15th day(12~18 days) in all groups. During this period, the rate of parasitized erythrocytes in control group was $55.0{\pm}5.4$‰. But that of group B and C were $41.3{\pm}38.8$‰ and $15.2{\pm}16.3$‰, respectively. 3. After challenge with B gibsoni, all of the values of PCV, Hb, RBC and total leukocytes counts were decreased in both of the experimental and the control. 4. In all groups, there were increased lymphocytes and monocytes after challenge with the protozoa.