• Journal of Microbiology and Biotechnology
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• 제22권6호
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• pp.856-865
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• 2012

We describe the construction and immunobiological properties of a novel whooping cough vaccine candidate, in which the aroQ gene, encoding 3-dehydroquinase, was deleted by insertional inactivation using the kanamycin resistance gene cassette and allelic exchange using a Bordetella suicide vector. The aroQ B. pertussis mutant required supplementation of media to grow but failed to grow on an unsupplemented medium. The aroQ B. pertussis mutant was undetectable in the trachea and lungs of mice at days 6 and 12 post-infection, respectively. Antigen-specific antibody isotypes IgG1 and IgG2a, were produced, and cell-mediated immunity [CMI], using interleukin-2 and interferon-gamma as indirect indicators, was induced in mice vaccinated with the aroQ B. pertussis vaccine candidate, which were substantially enhanced upon second exposure to virulent B. pertussis. Interleukin-12 was also produced in the aroQ B. pertussis-vaccinated mice. On the other hand, neither IgG2a nor CMI-indicator cytokines were produced in DTaP-vaccinated mice, although the CMI-indicator cytokines became detectable post-challenge with virulent B. pertussis. Intranasal immunization with one dose of the aroQ B. pertussis mutant protected vaccinated mice against an intranasal challenge infection, with no pathogen being detected in the lungs of immunized mice by day 7 post-challenge. B. pertussis aroQ thus constitutes a safe, non-reverting, metabolite-deficient vaccine candidate that induces both humoral and cell-mediated immune responses with potential for use as a single-dose vaccine in adolescents and adults, in the first instance, with a view to disrupting the transmission cycle of whooping cough to infants and the community.

• 대한한방내과학회지
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• 제26권3호
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• pp.543-550
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• 2005

This study was designed to identify the effects of Reynoutria Japonica on antibacterial activity aganist Bordetella pertussis ATCC 9797 which is cause of whooping cough. The ethanol- and water-extracts of more than 80 oriental herbal medicine were Investigated by Kirby -Bauer method to determine their inhibitory effects on growth of B. pertussis ATCC 9797 in vitro. For that Reynoutria Japonica was selected. The ethanol-soluble extract of Reynoutria Japonica showed relatively high antivacterial activity against B. pertussis ATCC 9797. However, the water-soluble extract of Reynoutria Japonica showed no antibacterial activity. The ethanolic extract was further fractionated with organic solvents such as hexane, chloroform, and ethyl acetate, in that order. Among the fraction tested, the chloroform fraction showed the highest antibacterial activity when the ethanol-soluble extract of Reynoutria Japonica minial inhibitory concentration(MIC) was $25{\mu}g/m{\ell}l$. Results support a role far Reynoutria Japonica in inhibiting the cell growth of B. pertussis ATCC 9797, but further experimentation is required.

• Pediatric Infection and Vaccine
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• 제24권1호
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• pp.37-43
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• 2017

목적: 백일해는 백신접종으로 예방이 가능한 질환이지만 세계적으로 증가하고 있고, 국내에서도 환자가 증가하고 있는 추세이다. 저자들은 최근 창원 지역에서 발생한 백일해 환자의 역학적인 특징과 임상 양상을 알아보고자 이 연구를 실시하였다. 방법: 2015년 7월부터 2016년 3월까지 호흡기 증상을 주소로 창원파티마병원 소아청소년과에 내원하는 환자 중 1주 이상의 기침을 하면서 발작적인 기침, 기침 후 구토, 흡기 시 '흡' 소리(whooping), 야간 기침이 동반된 환자들을 대상으로 호흡기 검체를 채취하여 백일해에 대한 배양, 중합연쇄반응검사를 실시하였고, 혈액의 항백일해 독소 항체검사(anti-pertussis toxin of ELISA kit, IBL International GmbH)를 실시하였다. 기저에 질환이 있거나 최근 1년 안에 DTaP 혹은 Tdap 백신 접종을 한경우에는 제외하였다. 결과: 연구 기간 동안 대상 환자 50명 중 진단된 환자는 37명이었다. 이 중 중합연쇄반응검사에서 양성인 환자는 2명이었고 혈청검사에서 양성인 환자는 37명이었다. 환자의 연령은 생후 1개월부터 15세였다. 항생제 사용 후 모든 환자가 합병증 없이 회복되었다. 결론: 2015년 7월부터 2016년 3월까지 창원 지역에 백일해의 유행이 있었으며, 이 연구 결과는 향후 국내에서 발생하는 백일해 역학 연구에 도움이 될 것으로 판단한다.

• Journal of Chest Surgery
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• 제17권3호
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• pp.456-464
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• 1984

Since the advent of potent chemotherapy, the incidence and severity of bronchiectasis have been on the decrease. Up to date, however, the medical treatment of bronchiectasis has not given us much satisfaction. Our purpose here is to show our experiences with pulmonary resections of bronchiectasis to clarify its surgical results and define its surgical indications. Sixty-five patients with bronchiectasis, treated surgically from January 1973 to December, 1982 at the Department of Thoracic and Cardiovascular Surgery, Kyungpook National University Hospital, were given clinical assessment. Of the 65 patients involved in the series, 49 were male and 16, female. The patients ranged from 8 to 51 in ages, with 59 cases [91%] between 10 and 39 years old. The prominent clinical features were as follows: cough [88%], sputum production [78%], recurrent upper respiratory infection [51%], and frequent hemoptysis [32%]. The past history of the patients included measles 29%, whooping cough 14%, pulmonary tuberculosis 12%, and pneumonia or bronchitis 12%. The cylindrical type of the bronchiectasis was found to be most common, accounting for 43% of the cases. The operations were performed on the left lung in 52 cases and the right lung in 13 cases. The most common operative procedure was the left lower lobectomy and lingular segmentectomy, which showed 34%. The second most frequent procedure was the simple left lower lobectomy which was 22%. Incomplete resections of the multisegmental bronchiectasis were carried out in 12 cases, of which 7 cases were satisfactory Four patients underwent bilateral pulmonary resections for the severe multisegmental bilateral bronchiectases, during the first and second operations. Improvement in pulmonary symptoms was generally obtained in all four cases. The follow-up ranged from 1 week to 7 tears, with an average of 18.8 months. The overall results revealed that 87% of these and excellent or good conditions, but 13% had persistent symptoms. There was one operative death, which is a 1.5% mortality.

• 생명과학회지
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• 제11권4호
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• pp.385-391
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• 2001

Filamentous hemagglutinin (FHA) is considered as an essential immunogenic component for incorporation into acellular vaccines against Bordetella pertussis, the causative agent of whooping cough. Classically, antipertussis vaccination has employed an intramuscular route. An alternative approach to stimulate mucosal and systemic immune responses is oral immunization with recombinant live vaccine carrier strains of Salmonella typhimurium. An attenuated live Salmonella vaccine sgrain($\Delta$cya $\Delta$crp) expressing recombinant FHA(rFHA) was developed. Stable expressionof rFHA was achieved by the use of balanced-lethal vector-host system. which employs an asd deletion in the host chromosome to impose in obligate requirement for diaminopimelic acid. The chromosomal $\Delta$asd mutation was complemented by a plasmid vector possessing the asd$^{+}$ gene. A 3 kb DNA fragment encoding immuno dominant regionof FHA was subcloned in-frame downstream to the ATG translation initiation codon in the multicopy Asd$^{+}$ pYA3341 vector to create pYA3457. Salmonella vaccine harboring pYA3457 expressed approximately 105kDa rFHA protein. The 100% maintenance of [YA3457 in vaccine strain was confirmed by stability examinations. Additionally, a recombinant plasmid pYA3458 was constructed to overpress His(8X)-tagged rFHA in Essherichia coli. His-tagged rFHA was purified from the E. coli strain harboring pYA3458 using Ni$^{2+}$-NTA affinity purification system.>$^{2+}$-NTA affinity purification system.

• Pediatric Infection and Vaccine
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• 제16권2호
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• pp.167-174
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• 2009

목 적: 과거에는 비교적 흔했던 백일해는 DTP백신의 사용 이후 경험하기 어려운 질환이 되었다. 이 같은 상황은 DTP백신의 높은 방어효과에 의한 것이기도 하지만 실제로는 알고 있는 것보다 많은 환자가 발생하고 있으나 확진을 위한 검사법이 용이하지 않아 생기는 현상일 수도 있다. 따라서 본 연구에서는 발작적 기침을 주증상으로 입원한 영아들에게 백일해에 대한 검사를 적극적으로 수행하여 백일해로 진단되는 비율을 얻음과 동시에, 백일해로 확진된 환자들과 비백일해 대조군의 임상양상을 비교함으로써 본 질환에 대한 보다 높은 관심을 이끌고자 하였다. 방 법: 2006년 6월부터 11월까지 가톨릭대학교 성빈센트병원 소아청소년과에 입원한 생후 15-90일의 영아 중 1주일 이상 기침이 지속되고, 발작적 기침이나 흡기 시 '흡' 소리, 기침 후 구토가 있었던 환자 27명의 비인두 가검물로 백일해에 대한 PCR 및 배양검사를 시행하였다. 백일해에 대한 PCR 양성이나 배양검사에서 균이 자란 경우를 백일해 환자군, PCR음성이면서 배양검사에서 균이 자라지 않은 경우를 비백일해 대조군으로 정의하고 두 군간의 임상양상을 비교하였다. 결 과 : 연구 대상 27명의 입원시 진단명은 세기관지염 20명, 기관지 폐렴 1명, 백일해양 증후군 6명이었다. 백일해로 확진된 5명 중 1명(20%)만이 입원 시의 진단명이 백일해양 증후군이었다. 백일해 환자군과 비백일해 대조군의 임상양상을 비교한 결과 환자군에서 의미 있게 높은 빈도를 보였던것은 무발열(P =0.043), 발작적 기침(P =0.040), 청색증(P =0.001), DTaP백신 미접종(P =0.003), 정상 청진소견(P =0.028), 가슴 X-선 사진의 정상소견(P =0.027), 절대 림프구수(P =0.039), 낮은 CRP 수치(P =0.046)이었으며, 총 기침기간은 백일해 환자군에서 비백일해 대조군에 비해 길었다 (27.2${\pm}$10.6 vs. 12.6${\pm}$5.6일, P =0.039). 결 론: 백일해로 확진된 영아의 일부만이 입원 시의 진단명이 백일해양 증후군이었다. 따라서 전형적인 백일해 증상이 있는 경우는 물론, 열이 없이 1주일 이상 발작적 기침이 지속되거나 청색증이 동반되는 DTaP 백신 접종력이 없는 영아들에서는 백일해의 가능성을 반드시 염두에 두어 이에 대한 적극적인 검사를 고려해야 하겠다.

• Advances in Traditional Medicine
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• 제10권1호
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• pp.7-12
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• 2010

Typha orientalis' stem (TOS) is traditionally used as an herbal medicine for difficulty in urination, galactophoritis purulenta, whooping cough, and allergic dermatitis. However, its effect in experimental models remains unknown. Here, we report the effect of TOS on the phorbol 12-myristate 13-acetate (PMA) plus calcium ionophore A23187-induced inflammatory cytokine production and extracellular signal-regulated kinase (ERK) activation in the human mast cell line, HMC-1. TOS inhibited PMA plus A23187-induced cytokines such as tumor necrosis factor-alpha (TNF-$\alpha$) and interleukin (IL)-6. Maximal inhibition rate of TNF-$\alpha$ and IL-6 production by TOS (1 mg/ml) was about 44.02%, and 45.20%, respectively (P < 0.05). In addition, TOS inhibited the expression of TNF-$\alpha$ and IL-6 mRNA under the same condition. Moreover, TOS partially blocked PMA plus A23187-induced ERK phosphorylation. These results suggested TOS could inhibit the cytokine production through blocking of ERK activity.

• International Journal of Oral Biology
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• 제44권3호
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• pp.81-88
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• 2019

Trifolium pratense leaves (red clover) has been used in Oriental and European folk medicine for the treatment of whooping cough, asthma, and eczema, and is now being used to treat and alleviate the symptoms, such as hot flushes, cardiovascular health effects that occur in postmenopausal women. However, relatively little scientific data is available on the physiological activity of this plant. Therefore, in this study, we investigated the anti-cancer activity of T. pratense leaves using methanol extract of T. pratense leaves (MeTP) on human FaDu hypopharyngeal squamous carcinoma cells. MeTP inhibited the viability of FaDu cells by inducing apoptosis through the cleavage of procaspase-3, -7, and -9 and poly (adenosine diphosphate ribose-ribose) polymerase (PARP), downregulation of Bcl-2, and upregulation of Bax, as determined by the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide assay, Live & dead assay, 4'6-diamidino-2-phenylindole stain, fluorescence-activated cell sorting analysis, and Western blot analysis. In addition, colony formation was slightly inhibited when FaDu cells were treated with a non-cytotoxic concentration (0.125 mg/mL) of MeTP and almost completely inhibited when cells were treated with 0.25 mg/mL MeTP. Collectively, these results indicate that MeTP induced cell apoptosis via caspase- and mitochondrial-dependent apoptotic pathways, and inhibited colony formation of cancer cells in FaDu human hypopharyngeal squamous carcinoma cells. These findings suggest MeTP should be considered for clinical development as a chemotherapeutic option in oral cancer.

• Tuberculosis and Respiratory Diseases
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• 제73권5호
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• pp.266-272
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• 2012

Background: Limited data on the incidence and clinical characteristics of adult pertussis infections are available in Korea. Methods: Thirty-one hospitals and the Korean Centers for Disease Control and Prevention collaborated to investigate the incidence and clinical characteristics of pertussis infections among adults with a bothersome cough in non-outbreak, ordinary outpatient settings. Nasopharyngeal aspirates or nasopharyngeal swabs were collected for polymerase chain reaction (PCR) and culture tests. Results: The study enrolled 934 patients between September 2009 and April 2011. Five patients were diagnosed as confirmed cases, satisfying both clinical and laboratory criteria (five positive PCR and one concurrent positive culture). Among 607 patients with cough duration of at least 2 weeks, 504 satisfied the clinical criteria of the US Centers for Disease Control and Prevention (i.e., probable case). The clinical pertussis cases (i.e., both probable and confirmed cases) had a wide age distribution ($45.7{\pm}15.5$ years) and cough duration (median, 30 days; interquartile range, 18.0~50.0 days). In addition, sputum, rhinorrhea, and myalgia were less common and dyspnea was more common in the clinical cases, compared to the others (p=0.037, p=0.006, p=0.005, and p=0.030, respectively). Conclusion: The positive rate of pertussis infection may be low in non-outbreak, ordinary clinical settings if a PCR-based method is used. However, further prospective, well-designed, multicenter studies are needed.

• 생명과학회지
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• 제25권5호
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• pp.515-522
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• 2015

Treculia africana Decne는 빵나무종으로 뽕나무과, Treculia 속에 속하는 식물로서, 이 식물의 다양한 부위에서 추출한 물질은 항염증, 항균등의 효과를 가지고 있어 백일해의 치료등 다양한 질환에서 민간요법으로 사용되어 왔다. 하지만 정확한 생리활성에 관한 연구는 보고된 바가 없다. 따라서 본 연구에서는 T. africana Decne 메탄올추출물(META)을 사용하여 항산화능 및 인체 대장암 세포주인 HT29에 대한 항암활성에 관하여 분석하였다. DPPH radical scavenging activity를 통해 분석한 결과, META의 IC₅₀가 4.53 μg/ml로 강력한 항산화능을 보유하 였음을 확인하였다. 또한 META 처리에 의해 HT29의 생존율이 감소함과 더불어 IC₅₀가 66.41 μg/ml로 강력한 세포사멸효과를 나타냈다. META 처리에 의해 HT29의 subG1 세포비율 및 Annexin V⁺ 세포의 비율이 증가하고, DAPI로 염색된 apoptotic body가 증가하였다. 또한 apoptosis 관련 단백질인 Fas, Bax, cytochrome c의 발현이 증가하였으며, 이는 caspase 3, 8, 9를 활성화 시켜 최종적으로 PARP가 분해되어 apoptosis가 유도되었음을 확인하였다. 이러한 결과들을 통해 META는 강한 항산화 활성과, 대장암세포에서 apoptosis 유도에 의한 높은 항암활성을 보유한 물질임을 확인하였다.