• Title/Summary/Keyword: Induced

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The Influence of Demographical Variables and Alienation on Adolescent's Negative Emotion-Induced Eating Motivation (인구학적 변인과 심리적 소외감이 청소년의 부정적 정서로 인한 섭식행동동기에 미치는 영향)

  • Min, Ha-Yeoung;Lee, Yoon-Joo
    • Journal of Families and Better Life
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    • v.27 no.2
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    • pp.1-9
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    • 2009
  • The purpose of this study was to investigate the influence of demographical variables(gender and age) and alienation on adolescent's negative emotion-induced eating motivation. The subjects were 389 middle and high school students who lived in Keoungbok. The data were analyzed by t-test, one-way ANOVA and stepwise multiple regression(using SPSS 12.1). Major findings were as follows: 1) There was difference in adolescent's negative emotion-induced eating motivation according to gender, age, and level of alienation. Adolescent's negative emotion-induced eating motivation tended to be higher when adolescent were girl students, or high school students or in higher level of alienation. 2) Alienation was the stronger predictor of adolescent's negative emotion-induced eating motivation than gender and age. 3) There was difference in boy adolescent's negative emotion-induced eating motivation according to age and level of alienation. But there was difference in girl adolescent's negative emotion-induced eating motivation only according to level of alienation. 4) For boy, alienation was the stronger predictor of adolescent's negative emotion-induced eating motivation than age. But for girl alienation was only significant predictor of adolescent's negative emotion-induced eating motivation.

Inhibition of The Stem Cell Factor-Induced Migration of Mast Cells by Dexamethasone

  • Jeong, Hyun-Ja;Hong, Seung-Heon;Park, Rae-Kil;Kim, Hyung-Min
    • Proceedings of the Korean Society of Applied Pharmacology
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    • 2003.11a
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    • pp.76-76
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    • 2003
  • Mast cells accumulation can be causally related with several allergic inflammations. Previous work has demonstrated that glucocorticoids decreased tissue mast cell number and stem cell factor (SCF)-induced migration of mast cells required p38 mitogen-activated protein kinase (MAPK) activation. In the present study, we investigated the effects of dexamethasone on SCF-induced migration of rat peritoneal mast cells (RPMCs). SCF significantly induced migration of RPMCs at 4 h. Dexamethasone dose-dependently inhibited SCF-induced migration of RPMCs (about 90.1% at 100 nM, P<0.05). MAPK p38 inhibitor, SB203580 (20 ${\mu}$M) also inhibited the SCF-induced migration. The ability of SCF to enhance morphological alteration and F -actin formation was also abolished by treatment of dexamethasone. Dexamethasone inhibited SCF-induced p38 MAPK activation to near basal level and induced the MKP-1 expression. In addition, SCF-induced inflammatory cytokine production was significantly inhibited by treatment of dexamethasone or SB203580 (p<0.01). Our results show that dexamethasone potently regulates SCF -induced migration, p38 MAPK activation and inflammatory cytokine production through expression of MKP-l protein in RPMCs. Such modulation may have functional consequences during dexamethasone treatment, especially mast cell-mediated allergic inflammation disorders.

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Studies on the effect of Kamikuibitang on the Gastric Ulcer in Rats (가미귀비탕(加味歸脾湯)이 흰쥐의 위궤양(胃潰瘍)에 미치는 영향(影響))

  • Baek, Dong-Jin
    • The Journal of Korean Medicine
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    • v.17 no.2 s.32
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    • pp.277-290
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    • 1996
  • This study was aimed to evaluate the anti-pain effect of Kamikuibitang in acetic acid method and the anti-ulceration effect of Kamikuibitang in indomethacin, aspirin and immobilization stress method in rats. The results were follows; 1. The anti-pain effects of Kuibitang and Kamikuibitang were decreased compared with those of control group. 2. In indomethacin and aspirin method, the anti-ulcerative effects of experimental groups were shown compared with those of control group. 3. In immobilization stress method, the anti-ulcerative effect of experimental groups was significantly shown compared with that of control group. 4. The serum gastrin levels of Kuibitang groups showed very significant decrease in indomethacin-induced and immobilization stress-induced ulcers. The serum gastrin levels of Kamikuibitang groups showed very significant decrease in indomethacin-induced, aspirin- induced and immobilization stress-induced ulcers. 5. The serum $V_{B12}$ levels of Kuibitang groups showed very significant increase in both indomethacin-induced and immobilization stress-induced ulcers. The serum $V_{B12}$ levels of Kamikuibitang groups showed significant increase in aspirin-induced and immobilization stress-induced ulcers whereas very significant increase in indomethacin-induced ulcer. According to the above results, it was concluded that Kamikuibitang had very significant anti-ulceration effect as well as anti-pain effect on gastric ulcer in rats.

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TURBULENCE MODULATION OF THE UPWARD TURBULENT BUBBLY FLOW IN VERTICAL DUCTS

  • ZHANG, HONGNA;YOKOMINE, TAKEHIKO;KUNUGI, TOMOAKI
    • Nuclear Engineering and Technology
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    • v.47 no.5
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    • pp.513-522
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    • 2015
  • The present paper aims at improving the modeling of turbulence for the upward turbulent bubbly flow through the use of experimental databases that contain data on small and large vertical ducts. First, the role of bubble-induced turbulence was analyzed, which indicated the dominant role of the bubble-induced turbulence in the duct center for relatively high void fraction cases. Therefore, the turbulence therein was mainly focused on, which indicated that the stronger turbulence could be induced by bubbles in large ducts with similar void fractions as compared to that in small ducts. Next, the turbulence of upward turbulent bubbly flow near the wall is discussed to understand the interaction between the wall-induced and bubble-induced turbulence. It showed that the existence of a wall could suppress the bubble-induced turbulence given the same void fraction, and the existence of bubbles could also suppress the solely wall-induced turbulence as compared to the single-phase turbulent flow, even though the total turbulence is enhanced. The above characteristics indicated that the current turbulence modeling method needs to be modified, especially when the bubble-induced turbulence plays a dominant role.

A Survey on Induced Abortion (일부 기혼 직업여성과 도시, 농촌 가정주부간의 인공유산 상태에 관한 고찰)

  • 신덕화
    • Journal of Korean Academy of Nursing
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    • v.3 no.2
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    • pp.53-65
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    • 1973
  • In order to explore the present status of induced abortion, a survey was conducted on 578 married women : 320 employed women, 165 urban and 93 rural housewives, during the period form June, 1972 to september, 1972. The results were as follows: 1. The rates of induced abortion in urban housewives, employed women and rural housewives were 50.3%, 30.3% and 1l.8%, respectively. 2. With regard to the duration of marital life, the rate of induced abortion was higher group of 11-16 and 17-22 years of duration than those of less than 4 years ana more than 23 years. 3. There were significant differences between housewives and the employed women. and also between urban and rural housewives in the rates of induced abortion. 4. The mean number of pregnancies was 4.9 and 4.8 for the rural and urban housewives while for the employed women was 2.1. 5. The mean number of live births was 4.5 and 3.2 for the rural and urban housewives while for the employed women was 2.1. 6. Average number of living children of the women who had experienced induced abortions was 4.8 and 3.1 for the rural and urban housewives while for the employed . women was 2.5. 7. There was a significant correlation between induced abortions and social class or educational level. The higher their level of education or social class, the more frequently women were experienced induced abortions. 8. There was a significant correlation between experience of induced abortions and family planning practice, vis., the women who had experienced induced abortions made more use of family planning practices.

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Minocycline-Induced Autoimmune Hepatitis: A Rare But Important Cause of Drug-Induced Autoimmune Hepatitis

  • Harmon, Elizabeth G.;McConnie, Randolph;Kesavan, Anil
    • Pediatric Gastroenterology, Hepatology & Nutrition
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    • v.21 no.4
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    • pp.347-350
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    • 2018
  • Drug-induced autoimmune hepatitis (DIAIH) is an increasingly recognized form of drug-induced liver injury that leads to a condition similar to idiopathic autoimmune hepatitis. A number of drugs have been associated with DIAIH, minocycline is one of the most well characterized. Minocycline is a semisynthetic tetracycline antibiotic used in the treatment of acne vulgaris. Minocycline-induced autoimmune hepatitis presents with serologic and histologic features similar to idiopathic autoimmune hepatitis. However, the natural history and outcomes of these two conditions differ significantly. The majority of patients with minocycline-induced autoimmune hepatitis experience complete resolution of symptoms after withdrawal of the medication. Some patients may require a short course of steroids and rarely use of an immunomodulator to achieve resolution of disease. Recurrence of symptoms is rare and typically only occurs with reintroduction of minocycline. It is important for primary care providers to consider minocycline-induced autoimmune hepatitis when liver injury develops during minocycline therapy.

The Reversible Contraction on Relaxation of Isolated Rat Aorta (흰쥐의 대동맥 이완반응에 대한 재수축효과)

  • 김진학;신창열;박조영;민영실;최경범;염지현;이남인;김학림;손의동
    • Biomolecules & Therapeutics
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    • v.8 no.2
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    • pp.113-118
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    • 2000
  • TEA, glibenclamide, L-NAME and SKF 525A-induced reversible contraction were investigated using acetylcholine, sodium nitroprusside (SNP) and pinacidil in rat abdominal and thoracic aorta. Acetylcho-line, SNP or pinacidil produced in a dose dependent manner relaxation on phenylephrine-induced contraction In rat aorta. TEA, SKF 525A, and L-NAME produced reversible contractions on acetylcholine-induced relaxation, but not on SNP- or pinacidil-induced relaxation. Glibenclamide significantly produced reversible con- traction on pinacidll-induced relaxation. The reversible effect of TEA on the acetylcholine-induced relaxation was reduced by SKF 525A. These results indicate that the acetylcholine-induced relaxation may be mediated by NO, cytochrome P$_{450}$-dependent epoxygenase pathway, or $Ca^{2+}$ activated $K^{+}$ channel, and the pinacidil-induced relaxation may be mediated by ATP-sensitive $K^{+}$ channel.annel.

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Wind-induced vibration control of a 200 m-high tower-supported steel stack

  • Susuki, Tatsuya;Hanada, Naoya;Homma, Shin;Maeda, Junji
    • Wind and Structures
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    • v.9 no.5
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    • pp.345-356
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    • 2006
  • It is well known that cylinder steel stacks are heavily impacted by vortex-induced vibration. However, the wind-induced vibration behaviors of tower-supported steel stacks are not clarified due to a lack of observation. We studied a stack's response to strong winds over a long period of time by observing the extreme wind-induced vibration of a 200 m-high tower-supported steel stack. This experiment aimed to identify the wind-induced vibration properties of a tower-supported steel stack and assess the validity of the vibration control method used in the experiment. Results revealed a trend in wind-induced vibration behavior. In turn, an effective measure for controlling such vibration was defined by means of increasing the structural damping ratio due to the effects of the tuned mass damper to dramatically decrease the vortex-induced vibration of the stack.

Immunoregulative Action of Bangpoongtongsungsan (방풍통성산(方風通聖散) 전탕액(煎湯液)의 면역(免疫) 조절작용(調節作用))

  • Lee, Chang-kyu;Song, Jeong-mo
    • Journal of Sasang Constitutional Medicine
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    • v.10 no.2
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    • pp.589-613
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    • 1998
  • The purpose of this research was to investigate effects of Bangpoongtongsungsan water extract(BTSE) on the immune reaction, anti-allergy action and anti-inflammatory action in BALB/c mice. The administration of BTSE (500mg/kg) enhanced the cell viability of thymocytes and the population of helper T cells in splenic T-lymphocytes. BTSE suppressed the production of nitric oxide, but enhanced the phagocytic activity in peritoneal macrophages. BTSE enhanced hemagglutination titer in mice. BTSE inhibited passive cutaneous anaphylaxis induced by egg albumin in rat, the lethal anaphylaxis induced by platelet activating factor and compound 48/80 in mice, and then inhibited the degranulation of peritoneal mast cells induced by compound 48/80. BTSE did not inhibit Arthus reaction, but inhibited the delayed type hypersensitivity induced by SRBC and contact dermatitis induced by DNFB. BTSE inhibited the acute hind paw edema induced by histamine after 30 minutes, the permeability of evans blue into peritoneal cavity induced by acetic acid and the writhing syndrome induced by acetic acid. These results suggest that BTSE has an immunopotentiative action, anti-allergy action and anti-inflammatory action via the inhibition of histamine release.

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Comparative Study on the Nociceptive Responses Induced by Whole Bee Venom and Melittin

  • Shin, Hong-Kee;Lee, Kyung-Hee;Lee, Seo-Eun
    • The Korean Journal of Physiology and Pharmacology
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    • v.8 no.5
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    • pp.281-288
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    • 2004
  • The present study was undertaken to confirm whether melittin, a major constituent of whole bee venom (WBV), had the ability to produce the same nociceptive responses as those induced by WBV. In the behavioral experiment, changes in mechanical threshold, flinching behaviors and paw thickness (edema) were measured after intraplantar (i.pl.) injection of WBV (0.1 mg & 0.3 mg/paw) and melittin (0.05 mg & 0.15 mg/paw), and intrathecal (i.t.) injection of melittin $(6{\mu}g)$. Also studied were the effects of i.p. (2 mg & 4 mg/kg), i.t. $(0.2{\mu}g\;&\;0.4{\mu}g)$ or i.pl. (0.3 mg) administration of morphine on melittin-induced pain responses. I.pl. injection of melittin at half the dosage of WBV strongly reduced mechanical threshold, and increased flinchings and paw thickness to a similar extent as those induced by WBV. Melittin- and WBV-induced flinchings and changes in mechanical threshold were dose- dependent and had a rapid onset. Paw thickness increased maximally about 1 hr after melittin and WBV treatment. Time-courses of nociceptive responses induced by melittin and WBV were very similar. Melittin-induced decreases in mechanical threshold and flinchings were suppressed by i.p., i.t. or i.pl. injection of morphine. I.t. administration of melittin $(6{\mu}g)$ reduced mechanical threshold of peripheral receptive field and induced flinching behaviors, but did not cause any increase in paw thickness. In the electrophysiological study, i.pl. injection of melittin increased discharge rates of dorsal horn neurons only with C fiber inputs from the peripheral receptive field, which were almost completely blocked by topical application of lidocaine to the sciatic nerve. These findings suggest that pain behaviors induced by WBV are mediated by melittin-induced activation of C afferent fiber, that the melittin-induced pain model is a very useful model for the study of pain, and that melittin-induced nociceptive responses are sensitive to the widely used analgesics, morphine.