• Title/Summary/Keyword: BL

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Photoprotective Effect of Bamboo (Phyllostachys nigra var. henenis Strapf) Leaf Extract against Ultraviolet Radiation-induced Chronic Skin Damage in the Hairless Mouse (자외선 조사 마우스에서 만성 피부손상에 대한 분죽(Phyllostachys nigra var. henenis Strapf)잎 추출물의 효과)

  • Byeon, Jeong-Soo;Lee, Hae-June;Moon, Changjong;Kim, Jong Choon;Jo, Sung Kee;Jang, Jong Sik;Kim, Tae Hwan;Kim, Sung-Ho
    • Journal of Radiation Industry
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    • v.5 no.3
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    • pp.203-210
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    • 2011
  • To evaluate the ability of Bamboo (Phyllostachys nigra var. henenis Strapf) leaf extract (BL) to protect the skin from photodamage, the gross and microscopic changes in the skin of hairless mice and BL-treated mice exposed chronically to ultraviolet (UV) were examined. The skin of the UV-irradiated mice showed characteristic signs of photoaging, such as deep wrinkles across the back, increased epidermal thickeness, numerous cell infiltration, and many enlarged keratinizing cysts. BL-treated mice showed a significantly decreased wrinkling score and lack of proliferation of cysts. By the 22nd week, 88.9% (i.p. with saline) or 60.0% (topical administration with cream base) of the UV-irradiated mice developed at least one tumor. BL delayed tumor onset significantly. BL (i.p.) was also effective in reducing the occurrence of UV radiation-induced skin tumors and reduced the number of tumors per mouse. After 22 weeks of treatment, 37.5% (i.p.) of the mice treated with BL were tumor-free. Tumor multiplicity was reduced by 81.2% (i.p.) in the BL treated groups. It is noted that skin that is chronically exposed to UV is subject to photoaging and photocarcinogenesis and regular use of BL would prevent these photodamaging effects of UV.

A Study of Acupuncture Contraindications in Uihakipmun (의학입문에 수록된 금침혈 연구)

  • Chai, Kwang-min;Kwon, Sunoh;Yoon, Dong Hak;Kim, Seungtae
    • Korean Journal of Acupuncture
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    • v.36 no.3
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    • pp.150-161
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    • 2019
  • Objectives : The authors aimed at contributing to the safety of acupuncture in the clinic by analyzing the information of contraindicated acupoints described in Uihakipmun. Methods : We investigated the contents related acupuncture contraindications in Uihakipmun, categorized the contraindicated acupoints by site and identified whether they can cause adverse events from the anatomical point of view. Results : In Uihakipmun, 49 acupoints - BL6, BL8, BL9, ST1, SI18, BL1, BL2, TE18, TE19, TE20, GB1, GB3, GV22, GV24, ST12, ST9, TE16, GV6, BL15, BL30, CV17, LU2, GB22, SP16, CV8, CV9, CV15, KI11, ST30, SP11, BL56, GB32, GB33, GB42, LI13, HT2, TE8, GV17, GB18, EX-HN11, GB21, GV11, GV10, ST17, CV5, CV1, ST42, SP6, LI4 - were described as contraindicated acupoints. Among them, the contraindications induced by acupuncture treatment were described for just 5 acupoints. Anatomically, acupuncture stimulation at the contraindicated acupoints can cause organ, nerve or vessel damage near the acupoints. And the number of contraindicated acupoints in Uihakipmun was increased compared to those in Hwangjenaegyeong, Chimgugabeulgyeong, Bigeupcheongeumyobang, Donginsuhyeolchimgudogyeong and Chimgujasaenggyeong. Conclusions : In Ming dynasty, the knowledge associated with adverse events on acupuncture was increased by the accumulation of medical knowledge. Acupuncture stimulation at the contraindicated acupoints described in Uihakipmun can cause tissue damage, therefore we should perform acupuncture procedure carefully to avoid adverse events when stimulating the contraindicated acupoints.

Genetic and Agronomic Analysis of a Recombinant Inbred Line Population to Map Quantitative Trait Loci for Blast Resistance and Select Promising Lines in Rice (벼 RIL집단의 유전 분석과 농업형질 분석을 통한 도열병 저항성 QTL 탐색 및 유망계통 선발)

  • Ha, Su-Kyung;Jeung, Ji-Ung;Jeong, Jong-Min;Kim, Jinhee;Mo, Youngjun
    • KOREAN JOURNAL OF CROP SCIENCE
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    • v.65 no.3
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    • pp.172-181
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    • 2020
  • Koshihikari has been one of the most popular rice cultivars with good eating quality since the 1960s despite its susceptibility to blast disease and lodging. To map the genes controlling blast resistance and to develop promising blast-resistant breeding lines inheriting Koshihikari's high eating quality, a recombinant inbred line (RIL) population was developed from a cross between Koshihikari and a blast resistance donor with early maturity, Baegilmi. A total of 394 Koshihikari × Baegilmi RILs (KBRIL), and the two parents, were evaluated for blast resistance and major agronomic traits including heading date, culm length, panicle length, and tiller number. A linkage map encompassing 1,272.7 cM was constructed from a subset of the KBRIL (n = 142) using 130 single nucleotide polymorphisms. Two quantitative trait loci (QTL) for blast resistance, qBL1.1 harboring Pish/Pi35 and qBL2.1 harboring Pib, were mapped onto chromosomes 1 and 2, respectively. qBL1.1 was detected in both of the experimental sites, Namwon and Jeonju, while qBL2.1 was only detected in Namwon. qBL1.1 and qBL2.1 did not affect agronomic traits, including heading date, culm length, panicle length, and tiller number. From the 394 KBRILs, lines that were phenotypically similar to Koshihikari were selected according to heading date and culm length and were further divided into the following two groups based on blast resistance: Koshishikari-type blast resistant lines (KR, n = 15) and Koshishikari-type blast susceptible lines (KS, n = 15). Although no significant differences were observed in the major agronomic traits between the two groups, the KR group produced a greater mean head rice ratio than the KS group. The present study provides useful materials for developing blast-resistant cultivars that inherit both Koshihikari's high eating quality and Baegilmi's blast resistance.

Effect of administration of synbiotics mixture containing Bifidobacterium longum and xylooligosaccharide on fecal microbiota and defecation characteristics in healthy volunteers (Bifidobacterium longum과 자일로올리고당을 포함한 synbiotics 섭취가 건강한 성인의 변내 균총과 배변 상태에 미치는 영향)

  • Lee, Jung-Sug;Park, Hyoung-Seop;Kyung, Myungok;Jo, Sung-Eun;Chang, Moon-Jeong
    • Journal of Nutrition and Health
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    • v.53 no.4
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    • pp.390-405
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    • 2020
  • Purpose: The effect of prebiotics intake after administration of a synbiotics mixture (a probiotic, Bifidobacterium longum, and a prebiotic, xylooligosaccharide containing sugar [XOS]) on human intestinal microflora and defecation characteristics was investigated in a randomized controlled trial. Methods: Twenty-five healthy young volunteers (11 males and 14 females) were randomly assigned to 2 groups (BL2XO2 and BL2XO6). The synbiotics mixture was orally administered to both groups for 2 weeks, and the prebiotics were subsequently administered to the BL2XO6 group for 4 additional weeks. The daily dose of the synbiotics mixture comprised 1010 colony-forming unit of Bifidobacterium longum and 10 g of XOS, and during the prebiotics period, the daily dose of prebiotics comprised only 10 g of XOS. The fecal pH, microflora, and defecation characteristics were analyzed at baseline and at weeks 1, 2, 4, and 6. Results: The counts of B. longum and Bifidobacterium spp. in the BL2XO6 group exhibited a steady, increasing trend during the synbiotics and prebiotics periods, whereas those of the BL2XO2 group exhibited considerable variation in each week of the study period. Although there was no significant difference, the counts of fecal Bifidobacterium in the BL2XO6 group tended to be higher than those of the BL2XO2 group at week 6. The growth of Lactobacillus spp. exhibited a time-dependent variation, peaking at week 6 in both groups. Low counts of Clostridium spp. were observed after treatment with the synbiotics and prebiotics in the BL2XO6 group (p < 0.05) throughout the study, whereas the inhibitory effect on Clostridium spp. was maintained only during the synbiotics period in the BL2XO2 group. The defecation characteristics did not differ between the two groups. Conclusion: Administration of XOS after a synbiotics mixture containing B. longum and XOS can exert a prebiotic effect in healthy young volunteers by stimulating Bifidobacteriun spp. growth and inhibiting growth of Clostridium spp.

DEDUCTIVE SYSTEMS OF BL-ALGEBRAS

  • JUN, YOUNG BAE;KO, JUNG MI
    • Honam Mathematical Journal
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    • v.28 no.1
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    • pp.45-56
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    • 2006
  • We give characterizations of a deductive system of a BL-algebra, and discuss how to generate a deductive system by a set.

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Effect of Juglandis Semen Aqua-acupuncture and Acupuncture on the Allergic Response (호도약침이 알레르기에 미치는 영향)

  • Lee Zoo Eun;Lee Tae Yong
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.17 no.1
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    • pp.123-129
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    • 2003
  • Experimental studies were done to research the dinical effects of Juglandis Semen aqua-acupuncture and acupuncture(BL 13) on the anti-allergic response. anaphylaxis provoked by the compound 48/80, delayed type hypersensitivity response to picryl chloride and SASC and inflammation response to egg albumin. The following results have been obtained: Juglandis Semen aqua-acupuncture and acupuncture(BL13) group were increased the survival rate in compound48/80 induced systemic anaphylactic reaction. Picryl chloride induced contact dermatitis and delayed type hypersensitivity in SRBC challenged mouse were significantly decreased in Juglandis Semen aqua-acupuncture and acupuncture (BL13) group. Inflammation response - WBC, CRP and Nitric Oxide in egg albumin induced allergic rat were significantly decreased in Juglandis Semen aqua-acupuncture and acupuncture(BL13) group. According to the above results, Semen aqua-acupuncture and acupuncture(BL13) both depress the allergy reaction.

The Effect of Cervi Pantotrichum Cornu Pharmacopuncture at Pyesu ($BL_{13}$) on Chronic cough: Report of Six Cases (만성 해수에 대한 폐유(肺俞)($BL_{13}$) 녹용약침 치험 6례)

  • Shin, Min Geun;Kim, Hyo Sub;Heo, Woo Young;Kim, Byoung Jung;Gang, Il A
    • Journal of Acupuncture Research
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    • v.30 no.5
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    • pp.253-262
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    • 2013
  • Objectives : The purpose of this study is to observe the effect of Cervi Pantotrichum Cornu Pharmacopuncture at Pyesu($BL_{13}$) on Chronic Cough. Methods : 6 patients with the cough treated with Cervi Pantotrichum Cornu Pharmacopuncture at Pyesu($BL_{13}$), then self-conscious complain rates were studied. Results : There are remarkable improvement in self-conscious complain rate about cough, sputum, sore throat, runny nose, chest pain, fatigue which chronic cough patients complained. Conclusions : Cervi Pantotrichum Cornu Pharmacopuncture is effective to chronic cough.

Free Radical Involvement in the DNA Damaging Activity of Fumonisin Bl

  • Lee, Wan-Hee;Lee, Kil-Soo
    • Toxicological Research
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    • v.17 no.4
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    • pp.249-253
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    • 2001
  • Fumonisin B1, a mycotoxin, is thought to induce esophageal cancer in humans and apoptosis in animal cells by inhibiting ceramide synthase. Dumonisin Bl may also generate reactive oxygen species directly or indirectly, leading to DNA damage and lipid peroxidation. In this study, a DNA fragmentation assay, dichlorofluorescein (DCF) analysis, and single cell gel electrophoresis (SCGE) were used to investigate the involvement of cellular free radicals, specifically hydrogen peroxide, in the DNA damaging activity of fumonisin B1. From an in vitro DNA fragmentation assay, E. coli DNA, damage by fumonisin Bl was increased by the addition of superxide dismutase (SOD) and decreased by catalase. SCGE and DCF analysis in vivo showed that the nuclear DNA damage and intracellular free radicals in cultured rat hepatocytes treated with fumonisin B1 were increased with the concentration of fumonisin Bl . DNA damage and free radical generation were inhibited by the addition of catalase. Fumonisin Bl , in the presence of SOD, produces hydrogen peroxide causing oxidative DNA damage and protein malfunction, leading to genotoxicity and cytotoxicity of the toxin.

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A Study on the Acupoint Location of GV24 - Comparison with BL4, GB15, GB13, and ST8 on the Anterior Hairline (신정(GV24)의 혈위에 대한 연구 - 전발제 상에 있는 곡차, 두임읍, 본신, 두유와 비교 검토)

  • Park, Sang Kyun
    • Korean Journal of Acupuncture
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    • v.38 no.1
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    • pp.8-15
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    • 2021
  • Objectives : This study was conducted to explain the locations of GV24, BL4, GB15, GB13, and ST8 from classic literatures. Methods : 17 classics of acupuncture and moxibustion literature - 『Huangdimingtangjingjixiao』, 『Zhenjiujiayijing』, 『Huangdimingtangjiujing』, 『Beijiqianjinyaofang』, 『Qianjinyifang』, 『Waitaimiyaofang』, 『Ishimpo』, 『Taipingshenghuifang』, 『Tongrenshuxuezhenjiutujing』, 『Zhenjiuzishengjing』, 『Shisijingfahui』, 『Zhenjiujuying』, 『Yixuerumen』, 『Zhenjiudacheng』, 『Leijingtuyi』, 『Chimgukyungheombang』 and 『Yizongjinjian』 - were reviewed and compared. Results : Location of GV24 was on the midpoint of the anterior hairline before Song Dynasty, but changed to 0.5 cun directly above the midpoint of the anterior hairline after Song Dynasty. The locations of BL4, GB13 and ST8 varied among literatures. Conclusions : The locations of GV24, BL4, GB15, GB13 and ST8 were different from the standard acupoint locations, and were not consistent in 17 acupuncture and moxibustion classic literatures.