• Title/Summary/Keyword: Growing Mice

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Effect of Polygonatum sibiricum Rehd. pharmacopuncture on localized adiposity in obese mice (황정 약침의 비만 쥐에서의 국소 지방분해 효능 연구)

  • Mi Hye Kim;Tae Yang Choi;Woong Mo Yang
    • Journal of Convergence Korean Medicine
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    • v.1 no.1
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    • pp.17-24
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    • 2021
  • Objectives: Excessive accumulation of fat on specific region, regarded as localized fat, is one of the serious problems and well-known risk factors of health. Recently, an interest in health and aesthetics is growing by treating lipolytic injection. Polygonatum sibiricum Rehd (PS) has been known to have anti-oxidant, -aging and -atherosclerotic effects. In this study, we investigated the lipolytic effects of PS pharmacopuncture in obese mice. Methods: Male C57BL/6J mice was fed with high fat diet to induce obesity for 12 weeks. PS pharmacopuncture was dissolved in saline by adjusting pH 7. 100 μL of PS pharmacopunture was injected subcutaneously into the left side inguinal fat pad, while saline was injected into the right side inguinal fat pad in mice as self-control. Samples were treated 3 times per weeks for 2 weeks. Results: PS pharmacopunture significantly decreased the inguinal fat weight compared to left side inguinal fat pad. Decrease rate of PS pharmacopuncture was about 21%. In addition, the diameter of adipocyte in inguinal fat tissues was significantly reduced by 17% compared to saline-injected side. There was no sign of toxicity through whole experiments. Conclusion: The present study indiates that PS pharmacopunture could be a material derived from natural herb as a lipolytic injection for decreasing localized fat.

Hair Growth Effect of Herbal Extract Mixture Ahn Tonic in Mice (한방추출 천연혼합물의 탈모 유발 쥐에 대한 발모 효과)

  • Kwak, Jin Young;Koh, Young Mee;Ahn, Ji Sup;Park, Yang Chun;Ahn, Taek Won
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.33 no.6
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    • pp.363-369
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    • 2019
  • This paper aims to assess the effect of herbal extract mixture, Ahn Tonic, on hair growth and examine the stability of this percutaneous hair growth ointment. The hair on the back of the mice C57b1/6N was removed, and 1% of the TXN(testosterone) was then applied for a week to prevent the hair growth. The experimental group was then treated with Ahn Tonic, 0.2 mL per day. The degree of newly grown hair was observed with a vernier caliper. We also measured the proportion of the newly growing hair section to the entire shaved section in the 4th week and 8th week by distinguishing the section turning black from the shaved area. To observe the effect of the test chemical product on hair follicles and hair roots, the biopsy was executed between week 4 and week 8. Gene expressions, which operate as a factor for growing hair in the skin tissues extracted from each experimental animals, were also observed through a real-time PCR gene amplification method. The results showed that the Ahn tonic group had statistically significant hair restoring effect compared to the control group in terms of microscopy, biopsy, and gene expressions. Ahn Tonic is considered to have an impact on the hair growth.

Immunolocalization of Runx2 and Osterix in the Developing Periodontal Tissues of the Mouse

  • Kim, Byung-In;Na, Seung-Hoon;Kim, Ji-Youn;Shin, Je-Won;Jue, Seong-Suk
    • International Journal of Oral Biology
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    • v.36 no.2
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    • pp.51-57
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    • 2011
  • Runx2 and Osterix, the transcription factors for osteoblast differentiation, are known as fundamental factors to regulate the development of calcified tissues. However, the biological functions of these factors in the development of the periodontal tissues remain unclear. In this study, we investigated the distribution of Runx2 and Osterix during periodontal tissue development of the mice. Mandibles from 14-day-old mice were prepared for paraffin section. Serial sections of the mandible containing $1^{st}$ molar tooth germs were obtained as a thickness of $7\;{\mu}m$. Some sections were stained with hematoxylin and eosin. Others were used for immunohistochemistry for PCNA, Runx2, and Osterix. Epithelial cells in growing end of Hertwig's epithelial root sheath (HERS) and mesenchymal cells adjacent to the growing end of HERS expressed PCNA. Undifferentiated mesenchymal cells and hard tissue forming cells like cementoblasts and osteoblasts in early stage of differentiation expressed Runx2. Fully differentiated cementoblasts and osteoblasts secreting matrix proteins expressed Osterix. However, the cells terminated the matrix formation did not express Osterix. Periodontal ligament cells expressed Runx2 and Osterix. Pulp cells expressed Runx2 only. These results suggest that Runx2 and Osterix might regulate the differentiation of cementoblasts in the same manner as osteoblasts. Runx2 might participate in the process of cementoblast differentiation in early stage, whether Osterix might regulate the maturation and matrix synthesis of the cells.

Interplay between the Gut Microbiome and Metabolism in Ulcerative Colitis Mice Treated with the Dietary Ingredient Phloretin

  • Ren, Jie;Li, Puze;Yan, Dong;Li, Min;Qi, Jinsong;Wang, Mingyong;Zhong, Genshen;Wu, Minna
    • Journal of Microbiology and Biotechnology
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    • v.31 no.10
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    • pp.1409-1419
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    • 2021
  • A growing number of healthy dietary ingredients in fruits and vegetables have been shown to exhibit diverse biological activities. Phloretin, a dihydrochalcone flavonoid that is abundant in apples and pears, has anti-inflammatory effects on ulcerative colitis (UC) mice. The gut microbiota and metabolism are closely related to each other due to the existence of the food-gut axis in the human colon. To investigate the interplay of faecal metabolites and the microbiota in UC mice after phloretin treatment, phloretin (60 mg/kg) was administered by gavage to ameliorate dextran sulfate sodium (DSS)-induced UC in mice. Gut microbes and faecal metabolite profiles were detected by high-throughput sequencing and liquid chromatography mass spectrometry (LC-MS) analysis, respectively. The correlations between gut microbes and their metabolites were evaluated by Spearman correlation coefficients. The results indicated that phloretin reshaped the disturbed faecal metabolite profile in UC mice and improved the metabolic pathways by balancing the composition of faecal metabolites such as norepinephrine, mesalazine, tyrosine, 5-acetyl-2,4-dimethyloxazole, and 6-acetyl-2,3-dihydro-2-(hydroxymethyl)-4(1H)-pyridinone. Correlation analysis identified the relations between the gut microbes and their metabolites. Proteus was negatively related to many faecal metabolites, such as norepinephrine, L-tyrosine, laccarin, dopamine glucuronide, and 5-acetyl-2,4-dimethyloxazole. The abundance of unidentified Bacteriodales_S24-7_group was positively related to ecgonine, 15-KETE and 6-acetyl-2,3-dihydro-2-(hydroxymethyl)-4(1H)-pyridinone. The abundance of Christensenellaceae_R-7_group was negatively related to the levels of 15-KETE and netilmicin. Stenotrophomonas and 15-KETE were negatively related, while Intestinimonas and alanyl-serine were positively related. In conclusion, phloretin treatment had positive impacts on faecal metabolites in UC mice, and the changes in faecal metabolites were closely related to the gut microbiota.

Antidepressant-like Effects of the Gastrodia elata Bl Extract in Mice

  • Hong, Soon-Sang;Cho, Seung-Hun
    • Journal of Oriental Neuropsychiatry
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    • v.24 no.3
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    • pp.281-292
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    • 2013
  • Objectives : A growing body of evidence has suggested that the dysfunction of glutamatergic systems plays a pivotal role in major depressive disorder (MDD). This study was performed to investigate the antidepressant-like effects of the ethanolic extract of Gastrodia elata Bl (GE) in mouse models and to investigate the role of ${\alpha}$-amino-3-hydroxy-5-methyl-4-isoxazole-propionic acid (AMPA) receptors in producing these antidepressant-like effects. Methods : The forced swim test (FST) and tail suspension test (TST) were used to investigate GE's behavioral effects in mice. Additional biochemical and behavioral experiments with NBQX, an AMPA receptor antagonist, were undertaken to determine whether the antidepressant-like properties of GE are involved in AMPA receptor throughput. Results : Oral administration of GE extract (1,600 mg/kg) 1h prior to testing significantly reduced the immobility times in the FST and TST. These antidepressant-like effects of GE extract were increased dose-dependently. Pre-treatment with NBQX significantly attenuated the reduction in immobility time induced by the GE extract in the FST and TST. Conclusions : The ethanolic extract of GE may exert antidepressant-like effects with involvement of AMPA receptor.

ADMINISTRATION OF CROTON OIL EFFECTED IN THE INTESTINAL MUCOUS CELL OF MICE (파두유(巴豆油) 투여(投與)가 생쥐의 장관점액세포(腸管粘液細胞)에 미치는 영향(影響))

  • Han, Kyung-Taik
    • The Journal of Internal Korean Medicine
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    • v.1 no.1
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    • pp.98-106
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    • 1976
  • In order to study the effect of croton oil on the mucous cell in the mice intestin the experimental animals were injected with 0.1gm body weight of croton oil through intraperitoneally. They were sacrificed by ether anesthesia and obtained from distal small intestine and duodenum and colon, and fixed in 10% meutral formal. After embedded in paraffin, sectioned in 5 micro thickness, and stained with P.A.S (Periodic Acid Schiffis) reaction. The average number of the mucous cell was counted in each specimen over 20 fields under 450 magnification. The following results were obtained; 1) An average number of mucous cell began rapidly increase from 15 min and reached high average number after injection of croton oil of mucous cell from 30-60 min after injection. 2) An average number of mucous cell rapidly increase after injection of croton oil and were not reduced normal level by time lapsed 48 hrs. 3) The mucous cell showed with tape of time after injection of croton oil. A type and B type decrease and showed recovery C type decrease and recovery. 4) According to the above findings, it is presumed that croton oil accelerate secretion of mucin of the mucouse cell and production of mucin in growing mucous cell.

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Effect of Indomethacin on the Lipopolysaccharide-induced Production of Cytokines in Tumor-bearing Mice (암유발 생쥐에서 리포폴리사카라이드에 의해 유도된 사이토카인이 생산에 미치는 인도메타신의 영향)

  • 채병숙
    • YAKHAK HOEJI
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    • v.45 no.6
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    • pp.715-723
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    • 2001
  • Indomethacin is well known as a prostaglandin (PG) E$_2$ synthetase inhibitor which has antipyretic and anti-inflammatory effects and reduces the risk of cancer Growing tumors greatly induce hypersensitive responses to lipopolysaccharide (LPS). Thus, this study was investigated the effect of indomethacin on the LPS-induced production of cytokines in sarcoma-bearing ICR mice. Indomethacin at doses of 5mg/kg was administered orally 30 minutes before i.p. injection of LPS (8 mg/kg) 5 times for 7 days. LPS remarkedly increased tumor necrosis factor (TNF)-$\alpha$ and interleukin (IL)-1$\beta$, levels in both serum and splenic supernatants compared with those in controls, while indomethacin significantly reduced the LPS-increased levels of IL-1$\beta$, in both serum and supernatants. LPS significantly enhanced IL-2 levels in serum and interferon (IFN)-${\gamma}$ levels in supernatants, whereas indomethacin did not affect the LPS-increased levels of IL-2 and IFN-${\gamma}$. These data, therefore, indicate that indomethacin may attenuate the pathogenesis of IL-1$\beta$, induced by LPS and maintain the tumoricidal cellular immune effects by LPS-increased production of IL- 2 and IFN-${\gamma}$ in tumor-bearing state.

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Effect of Physical Training on Body Weight Gain and Physical Performance in Mice (흰생쥐에 있어서 성장기의 신체훈련이 신체발육 및 운동능력에 미치는 영향)

  • Paik, Kwang-Sae
    • The Korean Journal of Physiology
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    • v.11 no.1
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    • pp.33-36
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    • 1977
  • The object of the present study is to examine the effect of physical training during early growth of life on body weight gain and physical performance. Early weaned (2 weeks after birth) male mice were divided into control and training group-and experimental period was divided into growing period (from 1st week to 6th weeks after weaning) and adult period (from 7th weeks to 9th weeks after weaning). Physical training was. given on a small animal treadmill with a speed of 34.3m/min and $19^{\circ}C$ slope and both groups of body weight gain and maximal running time on the treadmill were determined. The results obtained are summarized as follows; 1. Body weight gain was lesser in training group than control group and the difference was. statistically significant at 1, 2.5, 5.7 weeks of training period. 2. Maximal running time of training group was found to be longer than that of control group at 6th (p<0.01), 8th (p<0.001) and 9th weeks. (p<0.01). From the above results, it may be concluded that if physical training is started in early growth of life, there might be an improvement of physical performance.

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Antitumor Activity of Bifidobacterium spp. Isolated from a Healthy Korean

  • Rhee, Young-Kyung;Bae, Eun-Ah;Kim, Suk-Young;Han, Myung-Joo;Choi, Eung-Chil;Kim, Dong-Hyun
    • Archives of Pharmacal Research
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    • v.23 no.5
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    • pp.482-487
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    • 2000
  • The antitumor activity of Bifidobacterium breve K-110, and K-I11, and B. infantis K-525 was investigated. These Bifidobacterial cells and their cell wail preparations (WPG) significantly increased the survival rate of mice who had been intraperitoneally implanted with sarcoma 180 cells. Solid tumor growth was inhibited even when the sarcoma 180 cells were implanted into the groins of the mice. However, the Bifidobacterial cells did not show in vitro cytotoxicity against tumor cell lines. Cell kinetic studies revealed that these WPGs induced neutrophils, which were followed by macrophages, at the site of peritoneal injection. The WPGs directly activated these cells to inhibit the growth of tumor cells in vitro assays. Our results suggest that Bifidobacterial WPGs induce and activate nonspecific phagocytes in situ to reject growing tumor cells in the mouse peritoneal cavity.

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