• 약학회지
• /
• 제43권1호
• /
• pp.77-84
• /
• 1999

To search for less toxic antiherpetic agents, the inhibitory effects of natural naringenin on the plaque formation of herpes simplex virus type 1 (HSV-1) and type 2 (HSV-2) in Vero cells were examined by the plaque reduction assay in vitro. Naringenin inhibited plaque formations of HSV-l and HSV-2 in a dose dependent manner. It also exhibited more potent antiherpetic activity on HSV-l with selectivity index (SI) of 19.1 than on HSV-2 with SI of 5.7 The combined antiherpetic effects of naringenin with nucleoside antiherpetic agents, acyclovir and vidarabine, were examined on the multiplication of these two strains of herpesviruses in Vero cells by the combination assay. The results of combination assay were evaluated by the combination index (CI) that was calculated by the multiple drug effect analysis. The combinations of naringenin with acyclovir on HSV-l and HSV-2 showed more potent synergism with CI values of 0.28∼0.81 for 50%, 70%, 90% effective levels than those with vidarabine with CI values of 0.86-3.28.

• 대한미생물학회지
• /
• 제35권2호
• /
• pp.191-201
• /
• 2000

The viruses of Herpes Simplex Virus 1 (HSV-1), Herpes Simplex Virus 2 (HSV-2) and Varicella-Zoster virus (VZV) which belong to the alpha herpes subfamily are important human pathogens. When eruptions were not fully developed from these viral infections, clinical diagnosis was not always easy and required virological confirmation test. The above viruses were reactivated in individuals who were compromised in immune competence for one reason or another. Polymerase chain reaction (PCR) enables rapid and sensitive detection of HSV and VZV DNAs. Its sensitivity was largely influenced by choice of primers. Authors conducted a study to detect of those three viruses in human specimens including vesicle fluid and joint fluid and serum using PCR methods. Primers used for this study were the general primer pair GPHV-RU which was known to amplify within the genes enjoying the highest degree of homology between UL15 of HSV and UL42 of VZV. PCR with primers hybridized pair GPHV-RU amplifies a 396 bp with THP-1 and HSV-2 standard strain DNA and 405 bp with VZV standard strain DNA. Restriction enzyme cleavage with HpaII and DdeI were used to detect and distinguish DNAs of THP-1 and HSV-2 and VZV. The purpose of this study was a rapid and easy detection of VZV and THP-1 or HSV-2 from various clinical specimens (vesicle fluid, serum and joint fluid) by PCR method. Used methods were: HSV PCR with primer 1, 2 and HpaII RE digestion; VZV nested PCR; HSV PCR with primer A, Band BssHII RE digestion. 1) In 33 cases (33/42, 78.6%) VZV was detected single or mixed infection from 42 clinical specimens which included vesicle fluid (5), serum form respiratory infected children (10), serum from immune suppressed adult cancer patients (7) and joint fluid from arthritis patients (20). 2) In 20 cases (20/42, 47.6%) HSV was detected singly or mixed infection and 19 of those cases were HSV-2 and 1 case was THP-1. 3) In 19 cases (19/42, 45.2%) VZV was singly detected which included serum from respiratory infected children (6 cases), joint fluid from arthritis patients (9 cases), vesicle fluid (2 cases) and serum form immunosuppressed cancer patients (2 cases). 4) HSV was singly detected in 6 cases (6/42, 14.3%) which included joint fluid from arthritis patients (5 cases) and serum form respiratory infected children (1 cases). 5) 14 cases of VZV and HSV mixed infection (14/42, 33.3%) were detected. They included vesicle fluid (3 cases), serum form immunosuppressed cancer patients (4 cases), serum from respiratory infected children (2 cases) and joint fluid from arthritis patients (5 cases). 6) HSV-1 and HSV-2 detection and typing by HSV PCR with primer A, Band BssHII RE digestion method was more sensitive and the results were easier to detect than on other method.

• 한국정보통신학회:학술대회논문집
• /
• 한국정보통신학회 2019년도 춘계학술대회
• /
• pp.528-532
• /
• 2019

본 연구는 뉴런 세포와 슈반 세포의 공동 배양에 의한 수초화 발생 과정과 herpes simplex virus-1 감염에 의한 탈수초화 발생과정을 전자 현미경과 분자생물학적 분석에 의하여 확인하고자 하였다. 쥐의 배아로부터 후근신경절(dorsal root ganglion, DRG)을 분리하여 슈반(Schwann) 세포와 뉴런 세포(neuronal cell)를 in vitro에서 각각 배양하였다. 유사 분열 억제인자로 처리한 뉴런세포와 정제된 슈반 세포를 함께 공동 배양을 하여 수초화를 발생시켰다. 이렇게 수초화된 공동 배양 세포에 herpes simplex virus-1를 감염시켜 탈수초화를 진행시켰다. 수초 형성의 존재를 의미하는 myelin protein zero(MPZ) 항체를 사용하고 전자 현미경을 이용하여 수초 발생 및 탈수초화 과정을 관찰하였다. 이 연구는 과학 기술부, ICT 및 미래 계획 (NRF-2016R1A2B4016552 및 2017R1A2B3005753)이 자금을 지원하는 국립 연구 재단 (NRF)을 통한 기초 연구 프로그램의 지원을 받았다.

• Journal of Oral Medicine and Pain
• /
• 제15권1호
• /
• pp.125-132
• /
• 1991

We have previously reported that simulated snuff dipping in conjunction with type I herpes simplex virus (HSV-1) induced oral malignant changes in hamsters. Present study was designed to investigate the carcinogenic effect of tobacco specific-N-nitrosamines (TSNAs) and HSV-1, alone or in combination, in hamsters. Hamsters were divided into 6 groups and the right buccal pouch mucosa were treated as follows: Grp 1, Control (Mock inoculation) [MI]+Topical Application [TA] of mineral oil[MO] : Grp 2, TA of 1% n'- nitrosonornicotine [NNN] + IM: Grp3, TA of 1% 4-N-nitrosomethylamino-1- (3-pyridyl)-1-butanone [NNK] + MI: Grp 4, HSV-1 inoculation [HI]+TA of MO : Grp 5, TA of 1% N-nitrosonornicotine [NNN] + HI: Grp 6, TA of 1% NNK + HI. TA of MO or TSNAs was initiated 1 day after the MI or HI and given 3 times per week for 20 consecutive weeks. At the buccal pouches were fixed for light microscope examination. No animal s developed tumors or malignant histopathologic changes in the mucosa of the buccal pouches. These data indicate that individual TSNAs, alone or in conjunction with HSV-1 infection, do not develop malignant changes in hamster buccal pouches.

• Biotechnology and Bioprocess Engineering:BBE
• /
• 제5권2호
• /
• pp.118-122
• /
• 2000

A comlementary call line CR2 is curretly used to propagte the Disabled Infectious Single Cycle Herpes Simplex Virus Typee2 (DISC HSV-2) on a small Iaboratory scale upto 15 L. These cultures are initiated by passaging the cells from roller bottle cultures. Whilst this is suitable for the laboratory scale it is totally impractical for use in seeding an industrial manufacturing scaled version of the culture. It is paramount to have a robust system for passaging cells from a small microcarrierier culture system to a larger one by a serial subculturing regime. Here we report on the successes we have had in our laboratory in scaling up out production system for the DISC HSV-2 from small 1-L cultures to a 50-L vessel with the maintenance of the viral productivity. Ease of use, reproducibility and the need to minimise overall production time were factors which were taken into consideration whils developing our procedures. We were aware of the need to keep a production train simple and as short as possible as this was the amall scale study for an envisaged manufacturing process.

• 대한한의학회지
• /
• 제25권4호
• /
• pp.180-187
• /
• 2004

Objective : This study was undertaken for discovering the characteristics of sleep in ordinary symptoms based on the Sasang Constitution. The result of this study could be helpful to understand and to identify patients such as Taeumin, Soyangin Soeumin or Taeyangin. Methods : There were 1,229 patients (529 men), who answered the questionnaire about their ordinary sleeping patterns. They were diagnosed, including their clinical Sasang Constitution, by the Sasang Constitution specialist at Bundang Oriental Hospital of Dongguk University. By applying the multinomial and binary logistic regression analysis to those collected materials, we can measure the characteristics and the influence of ordinary sleeping patterns to the dependent variable (Sasang Constitution). Results : In order of the item's influence that had decided one's constitution, between Taeumin and Soeumin, Taeumin snored frequently or well more than Soeumin, Soeumin had more dreams and more sleeping times than Taeumin, and Taeumin struggled frequently or well more than Soeumin. Between Soyangin and Soeumin, Soeumin dreams more frequently than Soyangin, Soyangin snored frequently or well more than Soeumin, and Soeumin has more sleeping times than Taeumin. Between Taeumin and Soyangin, Taeumin snored frequently or well more than Soyangin. Between Taeyangin and a group of the other constitutions, Taeyangin felt unwell after sleeping more than the other constitutions, the other constitutions awaked frequently more than Taeyangin during sleeping. Conclusion : This study will be used for identifying patients as Taeumin, Soyangin, Soeumin or Taeyangin by contrast with each other.

• Journal of Oral Medicine and Pain
• /
• 제30권3호
• /
• pp.319-328
• /
• 2005

재발성 아프타성 궤양 환자의 타액에서 구강내 궤양성 병소를 유발할 수 있고 감염성이 비교적 높은 미생물로 알려진 Herpes Simplex virus, Varicella Zoster virus, Helicobacter pylori 그리고 Candida가 발현되는지 여부와 병소의 발생과 상관관계가 있는지를 알아보고자 조선대학교 치과병원 구강내과에 내원한 재발성 아프타성 궤양을 가진 환자 29명과 대조군 29명의 타액을 이용하여 PCR과 배양을 통해 발현율을 비교한바 다음과 같은 결과를 얻었다. 1. HSV DNA는 재발성 아프타성 궤양 환자군에서 41.4%, 대조군에서 55.2%가 발현되었으나 두 군간에 유의한 차이는 없었고(P>0.05), VZV DNA는 두 군에서 모두 나타나지 않았다. 2. H. pylori DNA는 재발성 아프타성 궤양 환자군에서 27.6%, 대조군에서 48.3%가 발현되었으나 두 군간에 유의한 차이는 없었다(P>0.05). 3. Candida는 재발성 아프타성 궤양 환자군에서 13.8%, 대조군에서 6.9%가 배양되었으나 두 군간에 유의한 차이는 없었다(P>0.05). 이상의 연구를 종합하여 보았을 때, HSV, VZV, H. pylori 그리고 Candida는 재발성 아프타성 궤양의 발생에 직접적인 역할을 한다고는 볼 수 없으므로 향후 더 많은 표본을 대상으로 다른 미생물이 병소 발생의 유발요인으로 작용하는지 연구하여야 할 것으로 사료된다.

• 대한바이러스학회지
• /
• 제27권2호
• /
• pp.227-237
• /
• 1997

향약집성방 및 동의보감등 한의학 서적을 기초로 하여 선택한 탕제 45종과 단미제 80종의 메탄올과 열수추출물을 가지고 MTT assay를 실시하여 항Herpes simplex virus-1 (HSV-1)에 대한 활성을 조사하였다. 열수추출 탕제 45종 중 백사전방, 현람방I, 현람방II, 반천청방 4종에서 항 HSV-1 활성을 나타냈고, 이들의 SI (selective index)값은 $2.1{\pm}0.5$에서 $11.8{\pm}2.2$ 범위의 값을 가졌으며 메탄올추출 탕제 45종 중에서는 단치시호탕III, 반천청방, 정향울금방, 대황오배자고, 홍인락삼등방, 호장해독탕에서 활성을 보였고 이들의 SI값은 $1.7{\pm}0.2$에서 $10.5{\pm}3.1$ 범위의 값을 나타냈다. 열수추출 단미제 중계지, 관중, 구인분, 대황, 자화지정, 포공영, 호장근, 황백등 8종에서 항 HSV-1 활성이 나타났고, 이들의 SI값은 $1.6{\pm}0.1$에서 $10.2{\pm}0.7$ 범위의 값을 가졌으며 메탄올추출 탕제 중에서는 계지, 목방기, 상지, 호장근에서 활성을 보였고 이들의 SI 값은 $2.9{\pm}1.5$에서 $9.3{\pm}0.5$ 범위의 값을 나타내었다. 처방제 중 반천청방은 열수추출물과 메탄올 추출물 모두에서 항바이러스 활성을 나타냈고, 단미제 중 계지와 호장근도 열수와 메탄올 추출물 모두에서 항바이러스 활성을 보였다. 이들 탕제 및 단미제는 분획 및 분석실험을 실시하여 활성성분을 추적하고 있다.

• IMMUNE NETWORK
• /
• 제15권2호
• /
• pp.91-99
• /
• 2015

Herpes simplex virus (HSV) is a common causative agent of genital ulceration and can lead to subsequent neurological disease in some cases. Here, using a genital infection model, we tested the efficacy of vinegar-processed flos of Daphne genkwa (vp-genkwa) to modulate vaginal inflammation caused by HSV-1 infection. Our data revealed that treatment with optimal doses of vp-genkwa after, but not before, HSV-1 infection provided enhanced resistance against HSV-1 infection, as corroborated by reduced mortality and clinical signs. Consistent with these results, treatment with vp-genkwa after HSV-1 infection reduced viral replication in the vaginal tract. Furthermore, somewhat intriguingly, treatment of vp-genkwa after HSV-1 infection increased the frequency and absolute number of $CD3^-NK1.1^+NKp46^+$ natural killer (NK) cells producing interferon (IFN)-${\gamma}$ and granyzme B, which indicates that vp-genkwa treatment induces the activation of NK cells. Supportively, secreted IFN-${\gamma}$ was detected at an increased level in vaginal lavages of mice treated with vp-genkwa after HSV-1 infection. These results indicate that enhanced resistance to HSV-1 infection by treatment with vp-genkwa is associated with NK cell activation. Therefore, our data provide a valuable insight into the use of vp-genkwa to control clinical severity in HSV infection through NK cell activation.

• 대한바이러스학회지
• /
• 제28권1호
• /
• pp.63-69
• /
• 1998

To establish in vivo antiviral evaluation system by using murine herpesvirus intracerebral infection model, 5-6 female BALB/c mice per group aged 5 weeks were inoculated i.c. into cerebrum with different inocular HSV-1 F. Signs of clinical disease noted everyday for one month. Observed were body weight decrease, neurological signs and death caused by encephalitis. Mice discontinued body weight decrease were recovered from the disease, and keratitis was often observed during recovery. The groups inoculated with higher than 1,000 PFU showed 100% mortaltiy and $LD_{50}$ was <100 PFU/mouse. To study the effect of virus inoculum sizes on antiviral effect of acyclovir (ACV), mice inoculated with different inocula were administered i.p. with different doses of ACV immediately after infection, and twice a day for 5 days. The higher inculum size, the less protective. $ED_{50}$ of ACV was >25, >25, 18.4 and 8.0 mg/kg b.i.d. in the group infected with 1,000,000, 100,000, 10,000 and 1,000 PFU/mouse, respectively. $LD_{50}$ of ACV was 62.5 mg/kg b.i.d. Therapeutic index of ACV was <2.5, <2.5, 3.0 and 7.0 in the groups with inocula 1,000,000, 100,000, 10,000 and 1,000 PFU/mouse, respectively. Inoculum size 1,000 PFU/mouse showing 100% mortaltiy and 5-6 days mean time to death, 5 days drug administration and 14 days observation will be future experimental conditions.