• Title/Summary/Keyword: BL Model

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Effect of Morus alba extract for hair growth promotion in C57BL/6 mouse (C57BL/6 mouse에서 뽕나무 추출물의 모발성장효과)

  • Jung, Juyoung;Park, Jaeyoung;Cheong, Hyeonsook
    • Journal of Integrative Natural Science
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    • v.1 no.1
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    • pp.19-23
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    • 2008
  • Morus alba has been well known for its tonic effect or preventing of hypertension, aging, or diabetes mellitus in Asian countries. To evaluate the its effect on hair growth promotion, we performed the hair regrowth experiment with leaf, branch, root and fruit extract of Morus alba on animal model of C57BL/6 mouse. The hair regrowth effect was remarkable in the mouse treated branch and root extract (with what %), however, little effect on hair regrowth appeared on the mouse treated with leaf extract. Morus alba extract displayed antibacterial effects on Bacillus subtilis, Staphylococcus aureus, Pseudomonas and Candida albicans. These results indicated that branch and root extract of Morus alba could be applicable for hair regrowth or prevention of hair loss in human.

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Cytotoxicity and Antitumor Effects of Insambaekhaptang on C57BL/6 Mice Melanoma-induced Lung Metastasis (인삼백합탕(人蔘百合湯)이 B16세포에 대한 세포독성능 및 C57BL/6계 생쥐의 폐전이암의 억제에 미치는 영향)

  • Hwang, Ho-Jun;Ha, Ji-Yong
    • THE JOURNAL OF KOREAN ORIENTAL ONCOLOGY
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    • v.3 no.1
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    • pp.85-98
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    • 1997
  • Oriental medicine as a candidate for effective cancer treatment recently gain positive concerns in fields of therapeutic oncology. that is why some herbal medicines have been empirically safer in toxicity than anticancer drugs used in western medicine, and to show excellent therapeutic efficacy in human trial. Thus, these effects by clinically applied-herbs have not yet fully demonstrated in experimental tumor model. This study was initiated to evaluate the antitumor effect of Insambaekhaptang as candidate of antitumor-herbal agent against B16 melanoma metastasized into C57BL/6 mice lung. In experiment to test whether Insambaekhaptang can directly kill cancer cells in vitro or not, Insambaekhaptang showed direct killing action in concentration or higher against B16 melanoma cells using MTT assay, and showed lower IC50. Another experiment to know whether Insambaekhaptang can inhibit growth and metastasis of cancer cell or not, Insambaekhaptang significantly inhibited Solid tumor by intraperiperal injected-melanoma and lung metastasis induced by intravenous injected-melanoma in inbred C57BL/6 mice. When quantitative survival time increasing, we could obtain results that increased 113% in treated by Insambaekhaptang. These results show that Insambaekhaptang can inhibit growth of B16 melanoma cells through various biological mechanisms.

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Strain Differences in the Chronic Mild Stress Animal Model of Depression and Anxiety in Mice

  • Jung, Yang-Hee;Hong, Sa-Ik;Ma, Shi-Xun;Hwang, Ji-Young;Kim, Jun-Sup;Lee, Ju-Hyun;Seo, Jee-Yeon;Lee, Seok-Yong;Jang, Choon-Gon
    • Biomolecules & Therapeutics
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    • v.22 no.5
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    • pp.453-459
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    • 2014
  • Chronic mild stress (CMS) has been reported to induce an anhedonic-like state in mice that resembles some of the symptoms of human depression. In the present study, we used a chronic mild stress animal model of depression and anxiety to examine the responses of two strains of mice that have different behavioral responsiveness. An outbred ICR and an inbred C57BL/6 strain of mice were selected because they are widely used strains in behavioral tests. The results showed that the inbred C57BL/6 and outbred ICR mice were similarly responsive to CMS treatment in sucrose intake test (SIT) and open field test (OFT). However, the two strains showed quite different responses in forced swimming test (FST) and novelty-suppressed feeding (NSF) test after 3 weeks of CMS treatment. Only C57BL/6 mice displayed the depression- and anxiety-like behavioral effects in response to CMS treatment in FST and NSF test. Our results suggest that there are differences in responsiveness to CMS according to the different types of strain of mice and behavioral tests. Therefore, these results provide useful information for the selection of appropriate behavioral methods to test depression- and anxiety-like behaviors using CMS in ICR and C57BL/6 mice.

Inhibitory Effects of Sophora Flavescens on the Pancreatic & Cardiac Side Effects of Chemotherapy by Cisplatin (고삼이 항암제 cisplatin의 췌$\cdot$심장 부작용 감소에 미치는 영향)

  • Kim, Jin-Cheo;Lim, Seong-Chul;Jung, Tae-Young;Seo, Jung-Chul;Han, Sang-Won
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.19 no.4
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    • pp.945-949
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    • 2005
  • The objective of this study is to investigate the inhibitor effects of an traditional oriental herb, Sophora flavescens on the pancreatic & cardiac side effects of chemotherapy were studied by using Bl6-BL6 melanoma-injected C57BL6 mouse tumor model. In this study, the effects of an traditional oriental herb, Sophora flavescens, on the side effects of chemotherapy were studied using B16 melanoma-injected C57BL6 mouse tumor model. Anticancer drugs widely used in clinical situation. Sophora flavescen has significant effect on the reduction of the side effects of chemotherapy. Water extract of Sophora flavescens significantly inhibited cisplatin-induced increase of amylase (AMY) which is a good indicator of pancreatic toxicity. Sophora flavescens extract does not decrease the anti-tumor activity of cisplatin showing that it can selectively inhibit side effects of anticancer drugs preserving beneficial effect. Theses results suggest a possibility that Sophora flavescens extract can be used for cancer patients for the reduction of the side effects and improving the quality of life during chemotherapy of cancer patients.

Effects of Microneedle Therapy System(MTS) and Hwangryeonhaedoktang Pharmacopuncture Solution on Hair Growth in an Alopecia Model of C57BL/6N Mouse (C57BL/6N 마우스 탈모모델에서 미세다륜침(MTS)과 황련해독탕 약침액 도포가 모발성장에 미치는 영향)

  • Kang, Na-Ru;Yoon, Hwa-Jung;Ko, Wo-Shin
    • The Journal of Korean Medicine Ophthalmology and Otolaryngology and Dermatology
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    • v.29 no.1
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    • pp.47-64
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    • 2016
  • Objective : This study was carried out to investigate the effect of Hwangryeonhaedoktang pharmacopuncture solution (HRHDT) and microneedle therapy system (MTS) on hair growth in an alopecia model of C57BL/6N mice.Methods : Six-week old mice were depilated and separated in 4 groups ; CON (saline), MXD (3% Minoxidil), MTS and HRHDT+MTS. The treatments were applied twice a week for 17 days. The hair growth was determined photographically. The hair density, thickness and length were identified by Folliscope and the weights of body and organs were measured. In dorsal skin tissue, the expression of hair growth-related gene and protein was analyzed by RT-PCR. In addition, the hair follicles in the dermis were observed by H&E staining.Results : The promotion of hair growth was observed in HRHDT+MTS and MTS compared to CON. The hair density, thickness and length were also improved in HRHDT+MTS and MTS compared to CON. The mRNA expression of IGF-1, PRL and PL and the protein expression of VEGF and IGF-1 were increased in HRHDT+MTS and MTS compared to CON. The hair follicles and hair root growth were improved in HRHDT+MTS and MTS compared to CON. In the above results, HRHDT+MTS were more effective than MTS.Conclusions : These results suggest that HRHDT and MTS have a hair growth activity and can be useful for the treatment of alopecia.

Effects of Ganoderma Lucidum Extract Ethanol Extract and Microneedle Therapy System on Hair Growth in an Alopecia Model of C57BL/6N Mice (C57BL/6N 마우스 탈모모델에서 미세다륜침과 영지추출물이 모발성장에 미치는 영향)

  • Ju, Bong Hyun;Yu, Sun Ae;Kang, Kyung Hwa;Lee, Seung Yoen
    • The Journal of Pediatrics of Korean Medicine
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    • v.28 no.2
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    • pp.72-87
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    • 2014
  • Objectives This study was carried out to investigate the effect of Ganoderma lucidum extract (GLE) and microneedle therapy system (MTS) on hair growth in an alopecia model of C57BL/6N mice. Methods Five-week old mice were depilated and separated in 4 groups ; CON (50% EtOH), MXD (5% Minoxidil), MTS and GLE + MTS. The treatments were applied twice a week for 3 weeks. The hair growth was determined photographically, the hair density, thickness and length were identified by Folliscope and the weights of body and organs were measured. In dorsal skin tissue, the expression of hair growth-related gene and protein was analyzed by RT - PCR or Western blot. In addition, the hair follicles in the dermis were observed by H&E staining. Results The promotion of hair growth was observed in GLE + MTS and MTS compared to CON. The hair density, thickness and length were also improved in GLE + MTS and MTS compared to CON. The mRNA expression of TGF-${\alpha}$, TGF-${\beta}1$, IGF-1, PRL and PL and the protein expression of VEGF and IGF-1 were increased in GLE + MTS and MTS compared to CON. The hair follicles and hair root growth were improved in GLE + MTS and MTS compared to CON. In the above results, GLE + MTS were more effective than MTS. Conclusions These results suggest that GLE and MTS has a hair growth activity and can be useful for the treatment of alopecia.

Haeae-tang including Artemisia argyi Folium promotes hair growth in hair-removed C57BL/6 Mice (애엽을 포함하는 해애탕의 에탄올 추출물이 제모된 C57BL/6 마우스의 발모에 미치는 영향)

  • Kim, Nam Hee;Moon, Sun Hee;Kim, Mi Ryeo;Lee, Young Sun;Yoo, Wang Keun
    • The Korea Journal of Herbology
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    • v.30 no.2
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    • pp.19-24
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    • 2015
  • Objectives : The experiment was performed to investigate promotive effects of haeae-tang (HET) extract, a traditional Korean medicinal recipe, on hair growth, protein and gene expression in hair-removed C57BL/6. Methods : In experiment, animals were divided into 3 groups including normal (vehicle), HET ethanol extract and 5% minoxidil-treated groups (Minoxidil, positive control). The vehicle or testing samples were daily treated with 0.2ml per on hair-shaved dorsal skin of C57BL/6mice for 15 days. Effects of testing samples on hair growth was monitored through phototrichogram analysis by folliscope on the initial, $5^{th}$, $10^{th}$, $15^{th}$ day, respectively. Also, gene and protein expressions of vascular endothelial growth factor (VEGF) and Insulin like growth factor-1 (IGF-1), relevant to hair growth, were examined. Results : Hair density and hair thickness of Minoxidil treated-group was significantly increased compared to that of vehicle application on the $15^{th}$day, respectively. Dorsal hair density of HET treated-group was significantly increased compared to that of vehicle application on the $15^{th}$day. In addition, the Minoxidil group significantly increased the expression of cutaneous IGF-1 protein and mRNA compared to that of the vehicle-applied group on the $15^{th}$ day. And HET-treated group significantly increased the expression of dorsal VEGF protein compared to that of the vehicle-applied group on the $15^{th}$ day. Conclusions : These results suggest that this Korean medicinal recipe, HET has promoting activity on hair growth in an Alopecia animal model thus it can be used as a material of agent or products for improvement or prevention of alopecia.

Effect of High-Fat Diet-induced Obesity on the Incidence and Progression of Prostate Cancer in C57BL/6N Mouse (C57BL/6N 마우스에서 전립선암의 발병률 및 진행에 대한 고지방식이-유도 비만의 영향)

  • Choi, Yun Ju;Kim, Ji Eun;Lee, Su Jin;Gong, Jeong Eun;Jin, Yu Jeong;Lee, Jae Ho;Lim, Yong;Hwang, Dae Youn
    • Journal of Life Science
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    • v.32 no.7
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    • pp.532-541
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    • 2022
  • Obesity induced by high-fat diet (HFD) is verified as a strong risk factor and negative prognostic factor for prostate cancer in several genetically engineered mice although it was not examined in the normal mice. To investigate whether HFD-induced obesity can affect the development and progression of cancer in the prostate of normal mice, alterations in the weight and histological structure of the prostate as well as the expression of cancer-related proteins were analyzed in obese C57BL/6N mice fed with 60% HFD for 16 weeks. First, HFD-induced obesity, including an increase in organ weight, body weight, fat accumulation, and serum lipid profile, was successfully induced in C57BL/6N mice after HFD treatment. The total weight of the prostate significantly increased HFD-induced obesity in the model mice compared with the control group. Among the four lobes of the prostate, the weight of the ventral prostate (VP) and anterior prostate (AP) were higher in HFD-induced obesity model mice than in the control group, although the weights of the lateral prostate (DLP) and seminal vesicle (SV) were constantly maintained. In addition, the incidences of hyperplasia and non-hodgkin's lymphoma (NHL) in the histological structure were remarkably increased in HFD-induced obesity model mice, while the epithelial thickness was higher in the same group. A significant increase in the phosphorylation levels of key proteins in the AKT (protein kinase B) signaling pathway was detected in HFD-induced obesity model mice. Therefore, these results suggest that HFD-induced obesity can promote hyperplasia and NHL in the prostates of C57BL/6N mice through the activation of the AKT signaling pathway.

Modeling and Forecasting Saudi Stock Market Volatility Using Wavelet Methods

  • ALSHAMMARI, Tariq S.;ISMAIL, Mohd T.;AL-WADI, Sadam;SALEH, Mohammad H.;JABER, Jamil J.
    • The Journal of Asian Finance, Economics and Business
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    • v.7 no.11
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    • pp.83-93
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    • 2020
  • This empirical research aims to modeling and improving the forecasting accuracy of the volatility pattern by employing the Saudi Arabia stock market (Tadawul)by studying daily closed price index data from October 2011 to December 2019 with a number of observations being 2048. In order to achieve significant results, this study employs many mathematical functions which are non-linear spectral model Maximum overlapping Discrete Wavelet Transform (MODWT) based on the best localized function (Bl14), autoregressive integrated moving average (ARIMA) model and generalized autoregressive conditional heteroskedasticity (GARCH) models. Therefore, the major findings of this study show that all the previous events during the mentioned period of time will be explained and a new forecasting model will be suggested by combining the best MODWT function (Bl14 function) and the fitted GARCH model. Therefore, the results show that the ability of MODWT in decomposition the stock market data, highlighting the significant events which have the most highly volatile data and improving the forecasting accuracy will be showed based on some mathematical criteria such as Mean Absolute Percentage Error (MAPE), Mean Absolute Scaled Error (MASE), Root Means Squared Error (RMSE), Akaike information criterion. These results will be implemented using MATLAB software and R- software.

Influence of the Adjuvants and Genetic Background on the Asthma Model Using Recombinant Der f 2 in Mice

  • Chang, Yoon-Seok;Kim, Yoon-Keun;Jeon, Seong Gyu;Kim, Sae-Hoon;Kim, Sun-Sin;Park, Heung-Woo;Min, Kyung-Up;Kim, You-Young;Cho, Sang-Heon
    • IMMUNE NETWORK
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    • v.13 no.6
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    • pp.295-300
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    • 2013
  • Der f 2 is the group 2 major allergen of a house dust mite (Dermatophagoides farinae) and its function has been recently suggested. To determine the optimal condition of sensitization to recombinant Der f 2 (rDer f 2) in murine model of asthma, we compared the effectiveness with different adjuvants in BALB/c and C57BL/6 mice. Mice from both strains sensitized with rDer f 2 by intraperitoneal injection or subcutaneous injection on days 1 and 14. The dosage was $20{\mu}g$. Freund's adjuvants with pertussis toxin (FP) or alum alone were used as adjuvants. On days 28, 29, and 30, mice were challenged intranasally with 0.1% rDer f 2. We evaluated airway hyperresponsivenss, eosinophil proportion in lung lavage, airway inflammation, and serum allergen specific antibody responses. Naive mice were used as controls. Airway hyperresponsiveness was increased in C57BL/6 with FP, and BALB/c with alum (PC200: $13.5{\pm}6.3$, $13.2{\pm}6.7$ vs. >50 mg/ml, p<0.05). The eosinophil proportion was increased in all groups; C57BL/6 with FP, BALB/c with FP, C57BL/6 with alum, BALB/c with alum ($24.8{\pm}3.6$, $20.3{\pm}10.3$, $11.0{\pm}6.9$, $5.7{\pm}2.8$, vs. $0.0{\pm}0.0$%, p<0.05). The serum allergen specific IgE levels were increased in C57BL/6 with FP or alum (OD: $0.8{\pm}1.4$, $1.1{\pm}0.8$, vs. $0.0{\pm}0.0$). C57BL/6 mice were better responders to rDer f 2 and as for adjuvants, Freund's adjuvant with pertussis toxin was better.