• 한국균학회지
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• 제48권2호
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• pp.125-133
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• 2020

국내 표고의 고품질 톱밥재배용 품종을 육성하기 위해 수집균주 및 우량계통의 단포자 교배를 통해 육성된 '화담'의 주요 특성은 다음과 같다. 균사생장 적온은 25℃, 발이 및 생육온도는 12-20℃, 형태는 평반구형으로 '산조701호'와 유사하였으며, 발생형은 '산조701호'가 집중형인데 비해 '화담'은 산발형으로 나타났다. '화담'의 재배특성 조사결과 배양일수는 35일, 갈변기간은 84일로 '산조701호'과 유사하였고, 생육일수는 10일로 '산조701호'보다 2일 늦어 전체 재배일수도 129일로 '산조701호'의 127일에 비해 2일 늦었다. '화담'은 '산조701호'에 비해 갓 두께, 갓 직경, 대 굵기가 크고, 갓 명도와 적색도가 높았다. 3주기 수량성 조사결과 유효 개체수는 '화담'이 4.1개로 '산조701호'의 6.2개에 비해 2.1개 적었으나 개체중은 '화담'이 44.3 g으로 '산조701호'의 21.9 g 보다 높아 3주기 수량성에서 '화담'이 553.8 g으로 '산조701호'의 405 g 보다 높은 수량을 보였다. 또한, 화담은 베타글루칸이 79.4 mg/g, 페놀성 화합물 햠량은 0.93 mg GAEs/g각각 함유되어 대조품종인 '산조701호'와 유사하였고, 외래품종인 '엘808' '추재2호'에 비해 높은 함량을 보였다.

• 한국치위생학회지
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• 제20권6호
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• pp.949-961
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• 2020

Objectives: This study investigated the relevance of dietary behavior and oral management for oral heath in adults to extend the recognition of the importance of food intake in oral health and to provide basic information for oral health management. Methods: A survey and clinical assessment were conducted for 119 adults over 20 years of age. The chi-square test and logistic regression analysis were carried out using SPSS Statistics 20.0. Results: Gingivitis was influenced less when ham and sausage in the sub-area of meat, fish, egg, and bean were consumed once a week rather than the cases when consumed rarely (3.47 times) or when consumed two times or more a week (7.87 times) (p<0.05). Periodontitis was influenced more in the groups of 30s and 40s age than in that of over 50 years of age (14.97 times, 7.73 times) and in the group without drinking experience than in group with that (4.17 times) (p<0.05). Conclusions: The results verified the close relationship between food intake frequency and oral health in patients with periodontitis and gingivitis. Thus, it would be necessary to study the relationship between dietary behavior and oral health continuously.

• 한국동물위생학회지
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• 제44권4호
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• pp.271-281
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• 2021

Pathogenic Escherichia coli (E. coli) is one among the most important agents of diarrhea in calves. From January to December 2021, 108 isolates from feces of calves with diarrhea were investigated for enterotoxigenic E. coli (ETEC), enteropathogenic E. coli (EPEC), shiga toxin-producing E. coli (STEC), enteroaggregative E. coli (EAEC), and enteroinvasive E. coli (EIEC) using real-time PCR. In addition, the genes for F5, F17 and F41 fimbriae were detected by PCR. The most frequently isolated pathotypes were EPEC/STEC (29 isolates), and ETEC/EPEC/STEC (29 isolates). ETEC/EPEC, and ETEC/STEC were also found in 10 isolates. EPEC, STEC, and ETEC were detected in 13, 11, and 6 respectively. EAEC, and EIEC was not detected. Antimicrobial resistance test was carried out by agar disc diffusion method with 14 antimicrobials. Among 108 pathogenic E. coli isolates, 107 isolates were resistant to at least one of 14 antibiotics used in this study, 99 (91.7%) were resistant to two or more antimicrobials, and a single remarkable isolate was resistant to 14 antimicrobials. The isolates were primarily resistant to penicillins, streptomycin, tetracycline, ceftiofur, Trimethoprim/sulfamethoxazole, Kanamycin, and Ciprofloxacin. The high rate of resistance in pathogenic E. coli, sometimes to multiple drugs, may complicate future options for treating human infections. These results may bu used for diagnosis and therpeitic purposes in calves with diarrhea.

• 치위생과학회지
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• 제14권4호
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• pp.597-609
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• 2014

본 연구는 시판중인 에너지음료에 의한 치아 법랑질 침식효과를 알아보기 위하여 선호도가 높은 4종의 에너지음료를 선정하여 산도, 완충능 및 Ca, P 함량을 분석하였다. 또한 에너지음료 침지 전 후의 법랑질의 침식 정도를 표면미세경도와 SEM으로 관찰하여 다음과 같은 결론을 얻었다. 1. 에너지음료의 산성도는 번인텐스에서 $2.78{\pm}0.01$로 가장 낮았고 대조군인 증류수에서 $6.475{\pm}0.01$로 가장 높았다. 완충능은 번인텐스가 pH 5.5에서 $3.48{\pm}0.155$이고, pH 7.0에서는 $1.88{\pm}0.15$로 가장 높게 나타났고, 핫식스에서 각각 $1.71{\pm}0.37$, $1.23{\pm}0.35$로 가장 낮게 나타났다. 2. 에너지음료의 칼슘 함유량은 레드불($77.21{\pm}2.70mg/kg$)에서 가장 높게 나타났고 핫식스($0.98{\pm}0.05mg/kg$)에서 가장 낮게 나타났다. 인의 함유량은 핫식스($1.34{\pm}0.05mg/kg$)에서 가장 높게 나타났고, 레드불에서는 검출되지 않았다. 3. 에너지음료 침지 전 후의 법랑질 표면경도 변화는 레드불에서 가장 큰 감소가 나타났고, 다음으로 볼트에너지, 번인텐스, 핫식스 순으로 나타났다. 대조군과 모든 에너지음료 간에는 통계적으로 유의한 차이를 나타냈으나(p<0.05), 에너지음료 간에는 유의한 차이가 없었다. 4. 주사전자현미경 관찰 및 분석에서는 번인텐스에서 탈회가 가장 심한 것으로 관찰되었으며, 그 다음으로 볼트에너지, 핫식스, 레드불, 증류수 순으로 나타났다. 이상의 결과에서 정상법랑질에서도 pH가 낮거나 구연산을 함유한 에너지음료 섭취는 치아 표면경도를 감소시켜 치아손상을 악화시킬 수 있을 것으로 생각된다.

• Journal of Microbiology and Biotechnology
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• 제18권3호
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• pp.591-599
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• 2008

A murine model immunized by systemic and mucosal delivery of plasmid DNA vaccine expressing glycoprotein B (pCIgB) of pseudorabies virus (PrV) was used to evaluate both the nature of the induced immunity and protection against a virulent virus. With regard to systemic delivery, the intramuscular (i.m.) immunization with pCIgB induced strong PrV-specific IgG responses in serum but was inefficient in generating a mucosal IgA response. Mucosal delivery through intranasal (i.n.) immunization of pCIgB induced both systemic and mucosal immunity at the distal mucosal site. However, the levels of systemic immunity induced by i.n. immunization were less than those induced by i.m. immunization. Moreover, i.n. genetic transfer of pCIgB appeared to induce Th2-biased immunity compared with systemic delivery, as judged by the ratio of PrV-specific IgG isotypes and Th1- and Th2-type cytokines produced by stimulated T cells. Moreover, the immunity induced by i.n. immunization did not provide effective protection against i.n. challenge of a virulent PrV strain, whereas i.m. immunization produced resistance to viral infection. Therefore, although i.n. immunization was a useful route for inducing mucosal immunity at the virus entry site, i.n. immunization did not provide effective protection against the lethal infection of PrV.

• 한국식품영양과학회지
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• 제39권7호
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• pp.947-952
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• 2010

본 연구에서는 Bacillus subtilis NUC1균주로 발효한 탈지대두 grits 발효물인 FD와 탈지대두 grits에 녹두를 2.5, 5, 10%로 각각 첨가하여 발효한 FDM을 각각 제조하여 in vitro 상에서의 콜레스테롤 개선능을 검색하였다. FD와 FDM군의 콜레스테롤 흡착능을 살펴본 결과, 모든 군에서 70% 이상의 흡착능을 보였다. 특히 2.5% 녹두를 첨가하여 발효시킨 FDM군(2.5% FDM)은 90%의 가장 높은 흡착능을 보였다. 2.5% FDM군은 42%의 HMG-CoA reductase 저해 활성을 보였고, 또한 HepG2 세포를 이용하여 측정한 세포 내의 콜레스테롤 함량과 apolipoprotein AI, CIII의 개선효과에서도 가장 우수한 개선효과를 보였다. 따라서 2.5% 녹두를 첨가하여 발효시킨 FDM군은 고콜레스테롤 예방에 도움을 줄 것으로 생각된다.

• Journal of Acupuncture Research
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• 제31권2호
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• pp.119-134
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• 2014

Objectives : The purpose of this study was to investigate the analgesic effects of filiform acupuncture and laser acupuncture at the points of $TE_3{\cdot}GB_{41}$ in neuropathic pain induced rats. Methods : Neuropathic pain in rats was induced by partial resection of the tibial and sural nerves. Three weeks after the neuropathic surgery, each of the experimental groups(AT, LAT, AT + LAT and LAT + AT) was injected at the $TE_3{\cdot}GB_{41}$ twice per week for three weeks. Results : 1. All of the experimental groups(AT, LAT, AT + LAT and LAT + AT) showed a significant decrease in the plantar withdrawal response of allodynia and the thermal allodynia as compared with the control group. During the early phase, the AT and AT + LAT groups have been marked as more significant than the LAT + AT and LAT groups. 2. The expression of c-Fos significantly decreased in the LAT and LAT + AT groups as compared with the control group. 3. The LAT + AT group showed a significant decrease in Bax as compared with the control group. In each experimental groups(AT, LAT, AT + LAT and LAT + AT), Bcl-2 increased and Bax/Bcl-2 ratio decreased as compared with the control group. 4. The LAT, AT + LAT and LAT + AT groups showed a significant increase in mGluR5 as compared with the control group. Conclusions : These results represented that the filiform acupuncture and laser acupuncture at the $TE_3{\cdot}GB_{41}$ exerted anti-apoptotic and neuroprotective effects on the model of neuropathic pain, thereby suggesting that they should be available for decreasing mechanical allodynia.

• 한국균학회지
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• 제42권1호
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• pp.57-63
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• 2014

목이의 국내 재배생산 기반을 마련하기 위해 국내외의 수집균주들의 재배적 특성을 조사하여 우량 균주를 선발하고, 선발된 계통에 대한 생리적 특성을 조사한 결과는 다음과 같다. 수집계통별 자실체 형태에서 갈색계통 9계통, 흑색계통 5계통, 백색계통 1계통, 털목이 1계통, 기타 2계통으로 크게 5그룹으로 분류되었다. 수량이 가장 우수한 계통은 43007균주로 98.3 g/bag이었고, 43009, 43016, 43025와 44035계통도 60 g/bag 이상이었다. 이 중에서 재배기간이 짧고 수량이 우수한 계통으로 흑색 계통 43009, 백색계통 43009, 털목이 계통 43035를 재배시험을 위한 우량균주로 선발하였다. 선발계통에 대한 균사생장을 위한 적합배지로는 43007균주는 MCM배지, 43009와 43035균주는 GPYM 배지로 나타났다. 배양온도는 43007와 43035균주가 $30^{\circ}C$, 43009균주가 $25{\sim}^{\circ}C$에서 균사생장이 우수하였다. 선발균주 별 탄소원은 43007균주는 maltose, glucsoe, fructose, 43009균주는 fructose, 43035균주는 glucose로, 균주별로 차이가 있었으며, 질소원은 선발계통 모두 peptone을 이용 시 균사생장이 우수하였다. 선발계통별 C/N율은 43007 균주는 10에서, 43009균주는 10~20에서, 43035균주는 20에서 균사생장이 빠른 것으로 나타났다.

• Journal of Genetic Medicine
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• 제9권2호
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• pp.84-88
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• 2012

Purpose: Neurofibromatosis type 1 (NF1), which is caused by mutations of the NF1 gene, is the most frequent single gene disorder to affect the nervous system. Unidentified bright objects (UBOs) are commonly observed on brain magnetic resonance imaging (MRI) in patients with NF1. However, their clinical and pathologic significance is not well understood. The purpose of this study was to investigate the correlation between UBOs and cerebral glucose metabolism measured by $^{18}F$-2-Fluoro-2-deoxy-D-glucose ($^{18}F$-FDG) positron emission tomography (PET) in Korean patients with NF1. Materials and Methods: Medical records of 75 patients (34 males and 41 females) with NF1 who underwent brain MRI and PET between 2005 and 2011 were evaluated retrospectively. Clinical data including demographics, neurological symptoms, and brain MRI and PET findings, were reviewed. Results: UBOs were detected in the brain MRI scans of 31 patients (41%). The region most frequently affected by UBOs was the basal ganglia. The most frequent brain PET finding was thalamic glucose hypometabolism (45/75, 60%). Of the 31 patients with UBOs, 26 had thalamic glucose hypometabolism on brain PET, but the other 5 had normal brain PET findings. Conversely, of the 45 patients with thalamic glucose hypometabolism on brain PET, 26 showed UBOs on their brain MRI scans, but 19 had normal findings on brain MRI scans. Conclusion: UBOs on brain MRI scans and thalamic glucose hypometabolism on PET appear to be 2 distinctive features of NF1 rather than correlated symptoms. Because the clinical significance of these abnormal imaging findings remains unclear, a longitudinal follow-up study of changes in clinical manifestations and imaging findings is necessary.

• Journal of Acupuncture Research
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• 제29권2호
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• pp.59-71
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• 2012

Objectives : The purpose of this study was to examine the effects of the Astragali radix Pharmacopuncture on improvement of senile osteoporosis (Type 2) in SAM P6. Methods : At 10 weeks after birth, Astragali radix Pharmacopunctures were given 100mL, 200mL/kg/day, i.p. 3times a week for 4 weeks at $CV_{12}$ in SAM P6 mice. We measured complete blood cells (CBC) such as RBC, HGB, Hct, PLT, MPB and MCHC. And we analyzed the plasma concentrations of blood urea nitrogen, creatinine, inorganic phosphate and total iron. In addition, we tested bone mineral density (BMD) using the soft X-ray. Results : The results were as follows. 1. At $CV_{12}$ in SAM P6, treatments of Astragali radix Pharmacopuncture were showed a trend of increase in bone mineral density (BMD) of the vertebrae lumbales, femurand tibia in P6 mice. 2. At $CV_{12}$ in SAM P6, treatment of Astragali radix Pharmacopuncture increased in RBC, HB, HCT and PLT, in comparison with control group. It was also found that the inorganic phosphate levels increased in the treatment on groups of the Astragali radix Pharmacopuncture from that of the control group, but blood urea nitrogen was no significant. Conclusions : These results are suggested that at $CV_{12}$ the Astragali radix Pharmacopuncture help on improvement of osteoporosis in SAMs.