• Title/Summary/Keyword: Aged Rat

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Effects of molybdenum on myo-inositol uptake system in peripheral nerve isolated from lead-intoxicated rat. (Molybdenum이 납 중독 랫드의 말초신경내 myo-inositol uptake 시스템에 미치는 영향)

  • 송진호;정명규
    • Journal of environmental and Sanitary engineering
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    • v.18 no.2
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    • pp.60-66
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    • 2003
  • This study was carried out to elucidate the preventive mechanism of molybdenum on lead-induced neuropathy, An animal model of lead neuropathy was induced by feeding diet containing lead to Sprague-Dawley rat for three weeks. Four weeks aged Sprague-Dawley rats were divided into four groups : normal control group, 10ppm-lead treated group, 1mg/kg-molybdenum treated group, 10ppm-lead and 1mg/kg-molybdenum treated group. The parameters on neuropathy were examined by measuring concentration of myo-inositol and myo-inosito uptake in sciatic nerve. In the lead-treated rats, myo-inositol concentration and myo-inositol uptake rate were reduced by from 54% to 33% respectively. This deficit results from that myo-inositol uptake system which is carrier mediated and sodium-potassium dependent was inhibited by the lead treatment. However, the molybdenum administration significantly eliminated the impairment and maintained myo-inositol concentration to about 82% of normal level. These results suggest that lead-induced neurotoxicity was significantly reduced by administration of molybdenum and the mechanism might be partly normalization of myo-inositol uptake system in sciatic nerve.

The Antioxidant Effects of Sesimting on the Brain Tissue of Rat (세심탕(洗心湯)이 뇌조직(腦組織)의 산화작용(酸化作用)에 미치는 영향(影響))

  • Kim Seong-Hyeon;Lee Sang-Ryong
    • Journal of Oriental Neuropsychiatry
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    • v.8 no.2
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    • pp.39-50
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    • 1997
  • This experiment was to investigate the antioxidant effect of Sesimtang(SST) on brain tissues of mouse. The experimental groups were divided into three groups and treated ad follows for 15 days ; Normal group(NC), Vt.E admistrated group(PC), SST administrated Group(SST). After the extracting microsome from brain of mouse, those were measured the amounts of oxidant materials like MDA(malonaldehyde) and $H_2O_2$, then activities of antioxidant enzymes like SOD(superoxide dismutase), catalase, NADPH-cytochrome P-450 reductase. The results were as follows; 1. In TBA reaction to measure the amount of MDA, oxidant material of brain tissue of aged rat, both treated groups showed significant decrease. 2. Hydrogen peroxide formation was showed significant decrease in both treated groups than normal group. 3. Superoxide dismutase activity was increased in both treated groups than normal group, and showed little change in SST administrated group than normal group. 4. Catalase activity was increased in both treated groups than normal group. 5. NADPH-cytochrome P-450 reductase activity was increased in both treated groups than normal group.

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A Study on the Effects of Gamisoyosan on Ovariectomized Osteoporosis in Rats (가미소요산(加味逍遙散)이 난소적출로 유발된 흰 쥐의 골다공증에 미치는 영향)

  • Park, Chan-Soo;Sohn, Young-Joo
    • The Journal of Korean Obstetrics and Gynecology
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    • v.21 no.1
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    • pp.1-15
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    • 2008
  • Purpose: Osteoporosis that occurred after menopause is one of the most common metabolic disease. and it is that bone mass significant decrease in comparison with normal people. Its symptoms are fracture, decrease of height, etc. The purpose of this study is to examine what are the effects of the Gamisoyosan on the aged ovariectomized rat model of postmenopausal osteoporosis. Methods: 24 female rats were ovariectomized and divided into normal group(normal), ovariectomized group(control), and treated with Gamisoyosan group(treated). During 8 weeks we dosed D.W to sham and control group, and dosed Gamisoyosan(105 mg/100 g) to experimental group. After 8 weeks we sacrificed rats and measured the body weight, albumin, P, Calcium, ALP, total cholesterol, triglyceride, AST, ALT, T4, estradiol, the femur weight, the tibia ash weight, trabecular bone area, trabecular thickness, osteoclast number. Results: The level of serum albumin, calcium, AST, ALT, estradiol in Gamisoyosan group showed significant increase in comparison with control group. The level of serum triglyceride in Gamisoyosan group showed significant decrease in comparison with control group. Trabecular bone area and osteoclast number in Gamisoyosan group showed significant increase in comparison with control group. Conclusions: Reviewing these experimental results, Gamisoyosan has shown to activate osteogenesis and prevent bone resorption, and it should show efficacy on prevention and improvement of osteoporosis after menopause.

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Protective Effect of an Aged Garlic-bamboo Salt Mixture on the Rat with the Alcohol-salicylate Induced Gastropathy (마늘-죽염 제제가 위장 장애 유발 흰쥐의 항산화 효소활성에 미치는 영향)

  • Huh, Keun;Kim, Young-Hee;Jin, Da-Qing
    • YAKHAK HOEJI
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    • v.45 no.3
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    • pp.258-268
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    • 2001
  • Garlic has been known to be effective against the gastrointestinal diseases which can be induced by production of oxygen-derived free radical. It has been shown that bamboo salt is effective on the treatment and prevention of various gastrointestinal disorders. Bamboo salt is a processed salt invented by a Korean, ll-Hoon Kim. It has been reported that garlic and bamboo-salt are useful to the treatment of gastric disorders in Korea. To clarify the protective mechanism of the garlic-bamboo salt mixture, the gas-tropathy was induced in rats with alcohol-salicylate and the activities of the free radical scavenging enzymes were examined. In this study, we found that the garlic-bamboo salt mixture reduced the severity of hemorrhagic lesion in gastric mucosa in the rats. In addition, the activities of superoxide dismutase (SOD), glutathione peroxidase (GPx), glutathione reductase (GR) were significnatly increased and the total content of GSH was recovered. From those results, we concluded that the protective effect of the garlic-bamboo salt mixture on gastropathy in rats is its ability to recover the level of GSH and to increase the activities of the free radical scavenging enzymes (SOD, GPx, GR).

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The Protective Effects of Black Garlic Extract for Blood and Intestinal Mucosa to Irradiation (방사선 조사 시 혈구 및 장점막에 대한 흑마늘 추출물의 보호효과)

  • Jung, Do-Young;Choi, Junhyeok;Kim, Joongsun;Choi, Hyeongseok;Bae, Minji;Park, Wonsuk;Min, Byungin
    • Journal of radiological science and technology
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    • v.39 no.1
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    • pp.19-26
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    • 2016
  • The radiation has been utilized in a number of fields, even though the use of plenty cause a variety of side effects. This study was confirmed for radiation protective effects of aged garlic to contribute to the prevention of disasters that are radiation exposure. We studied the Complete Blood cell Count(CBC) and the small intestine after feeding aged garlic extract into Sprague Dawley Rat which irradiated X-ray beam 7 and 13 Gy. Garlic extract was administered to the results in the experimental group showed a notable difference in the CBC of platelets (p<0.05), red blood cells (p<0.05) and early damaged white blood cells (p<0.05). In addition, it was confirmed that experimental group's small intestine crypt is more survival than irradiation group significantly. And experimental group has small intestine villi length almost similar to the normal group. result of the aged garlic study will be able to be of great benefit for the radiation relevant emergency management.

Correlation of Tumour Response with Starting Tumour Size and Dose of Tamoxifen in an N-Methyl-N-Nitrosourea (NMU)-Induced Rat Mammary Cancer Model

  • Yankuzo, Hassan Muhammad;Emilia, Sharifah Tuan Sheriff;Shaari, Rumaizi;Yaacob, Nik Soriani
    • Asian Pacific Journal of Cancer Prevention
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    • v.15 no.16
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    • pp.6721-6726
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    • 2014
  • Background: The aim of this preliminary study was to address variations of responses observed with different starting tumor sizes of 10 and 15 mm, and the effects of different doses of tamoxifen (TAM) on experimental rat mammary tumors. Materials and Methods: Thirty-five inbred female Sprague Dawley rats aged 43 days were administered with three weekly doses of N-methyl-N-nitrosourea (NMU) intraperitoneally (ip) at 50 mg/kg body weight. Animals were randomized (beginning from 10 mm tumor size) into four TAM-treated (50, 100, 200 and $500{\mu}g/day$) groups of six animals each, and another group (n=6) treated with TAM $100{\mu}g/day$ at starting tumour size of 15 mm. The animals were treated by oral gavage daily for 8 weeks before sacrifice. Results: Serum urea and creatinine, and overall physical tumor burden were significantly modulated in animals treated with variable doses of TAM compared to the untreated controls (n=5). Final body weight and tumor number were significantly different in the 10 mm-treated animals compared to those treated at 15 mm. There were no significant differences in histopathological features among all the groups. Conclusions: Our findings suggest the importance of standardizing tumour size and drug doses before initiation of treatment, particularly in the direct comparison of basic end-tumour physical parameters.

The Effect of Herbal Formulation KH-305 Mainly consisted of Rubus Coreanus on Benign Prostatic Hyperplasia-Induced Rat (전립선 비대증 유발 백서에서 복분자를 주성분으로 한 생약제제 KH-305가 미치는 영향)

  • Kim, Sung-Dae;Lee, Byung-Hee;Sohn, Dong-Wan;Cho, Yong-Hyun;Lee, Seung-Min;Kim, Jeong-Ok;Kim, Sae-Woong
    • Korean Journal of Pharmacognosy
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    • v.39 no.2
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    • pp.80-85
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    • 2008
  • Benign prostatic hyperplasia (BPH) is one of the common diseases in elderly men. Recently, the old-aged population has increased, with the interest in the clinical importance of BPH ever growing. This study is designed to investigate the effects of KH-305 on BPH induced rat. The herb formulation KH-305 is consisted of Rubus coreanus, Cornus officinalis and Cuscuta chinensis. An experimental prostatic hyperplasia was induced in male rats by the administration of testosterone propionate, 3 mg/kg SC, for 2 months. The rats were divided into 3 experimental groups: the control, BPH-induced, oral KH-305 ingestion group. After 2 months, the prostates were removed, and analyzed for their prostatic weight and histological examination. The prostate weights were measured in each group, and found to be 820${\pm}$38mg, 3140${\pm}$26mg, 1880${\pm}$21mg in the control, BPH-induced, and oral KH-305 ingestion group, respectively. The BPH induced group showed statistically significant increases in their prostatic weights compared with control group(p<0.05) but oral KH-305 ingestion group showed more significant decreases than BPH-induced group statically(p<0.05). Histologically injected testosterone lead to prostatic hyperplasia in rats, but oral KH-305 ingestion decreased this change. These results suggest that KH-305 may be effective in treatment of BPH, and complementary medicine of BPH.

Effects of Ipriflavone on bone remodeling in the rat calvarial cell (백서 두개관세포에서 Ipriflavone이 골조직 개조에 미치는 영향)

  • Lee, Yong-Seung;Kim, Young-Jun;Lee, Ki-Heon;Hwang, Hyeon-Shik
    • The korean journal of orthodontics
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    • v.35 no.4 s.111
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    • pp.275-285
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    • 2005
  • Ipriflavone (isoprofoxyisoflavone), a synthetic derivative from soy isoflavone diazein, has been shown to inhibit bone resorption and perhaps stimulate bone formation This study was performed to examine the effects of ipriflavone on the proliferation and bone remodeling in rat calvarial cells in vitro The rat calvarial cells were isolated from fetus aged 20 to 21 days and cultured In BGJb media The graded concentration of ipriflavone $(10^{-9}\;10^{-5}M)$ was administered into cultured cells. When the cell proliferation was estimated through the measurement of MTT assay, there was no increase in cellular proliferation of the rat calvarial cell at any ipriflavone concentration. The cellular activity was evaluated through the formation of mineralized nodules stained by alizarin red. The formation of mineralized nodules significantly increased at concentrations of $10^{-8}M,\;10^{-7}M\;and\;10^{-6}M$ ipriflavone. Reverse transcription-polymerase chain reaction analyses (RT-PCR) were done at 7 and 14 days after culture to detect the expression of Bone Sialoprotein (BSP), Type I Collagen (COL I) and Osteocalcin(OCN) As a result, the expressions of BSP and COL I increased on the 7th day of culture and the expression of OCN increased on the 14th day of culture. These results indicate that ipriflavone facilitates the bone remodeling process bvy promoting rat calvarial cell differentiation aid stimulating mineralization through increased expression of extracellular matrix genes. such as BSP. COL I and OCN.

Ginsenosides attenuate the 3-nitropropioic acid-induced rat striatal degeneration in an age-dependent manner

  • Kim, Jong-Hoon;Nah, Seung-Yeol
    • Journal of Ginseng Research
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    • v.29 no.2
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    • pp.100-106
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    • 2005
  • The number of reporting the effects on ginseng's physiological, pharmacological, and behavioral effects has been increased every year. Major active components of Panax ginseng, are the ginsenosides, which are mainly triterpenoid dammarane derivatives. 3-Nitropropionic acid (3-NP) is blown to induce cellular energy deficit and oxidative stress related neurotoxicity via an irreversible inhibition of the mitochondrial enzyme succinate dehydrogenase (SDH). Intraperitoneal injection of 3-NP produces striatal degeneration. Aged animals was more vulnerable to 3-NP than young animal. We used three different ages of 5-, 8-, and 26-week-old rats. 3-NP alone treatment induced striatal lesion and increased lesion volume with age-dependent manner in 5-, 8-, and 26-week-old rats by $30.2{\pm}5.8$, $v$, and $51.3{\pm}8.4mm^3$, respectively. However, pretreatment of GTS (100 mg/kg/day) before 3-NP reduced striatal lesion in 5-,8-, and 26-week-old rats by $3.15{\pm}6.1$, $8.89{\pm}1.9$, and $27.3{\pm}5.6mm^3$, respectively. Pretreatment of GTS also significantly increased survival rate in 5-week-old rats (3-NP alone: GTS +3-NP = $40.4{\pm}6.3$: $72.5{\pm}9.5\%$) than 8-week-old rats (3-NP alone: GTS + 3-NP : $13.5{\pm}5.2\%$ : $45.1{\pm}3.1\%$). In 26-week-old rats, 3-NP alone treated group died on day 18, whereas GTS +3-NP-treated group prolonged lifespan to 30 days. Thus, pretreatment of GTS before administration of 3-NP extended lifespan in all ages. The present results indicate that aged animals are more vulnerable to 3-NP and GTS pretreatment protected 3-NP-induced striatal damage in different ages of animals.

Anti-oxidative and immune-regulative Effects of Electro-acupuncture at SP6 in Aged Rats (삼음교(三陰交) 전침이 노화과정 흰쥐의 항산화능 및 면역능에 미치는 영향)

  • Song, Jong-Keun;Lee, Byung-Ryul;Yang, Gi-Young;Jeon, Ju-Hyun;Yim, Yun-Kyoung
    • Korean Journal of Acupuncture
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    • v.27 no.1
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    • pp.87-106
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    • 2010
  • Objective & Methods: The purpose of this study is to investigate the anti-oxidative and immuneregulative effects of electro-acupouncture(EA) at SP6(Sameumgyo) in aged rats. The author performed several experimental items including blood cell counts, blood chemistry, measurement of various oxidants and antioxidants in liver and spleen, analysis of various cytokines in spleen. The results are as follows. Results: 1. EA at SP6 significantly reduced the number of platelets in blood. 2. EA at SP6 significantly reduced NO concentration and significantly increased catalase activity in liver. 3. EA at SP6 significantly reduced NO concentration and significantly increased SOD activity, catalase activity and glutathione concentration in spleen. 4. EA at SP6 restored the increase of IL-4, IL-6 and the decrease of IFN-$\gamma$ in aged rat spleen. Conclusion: According to these results, it is postulated that EA at SP6 has an antioxidative effect through increasing the activities of antioxidative enzymes and inhibiting production of oxidized substances, as well as an immune regulative effect in aging process. In consequence, it is presumed that EA at SP6 may have an anti-aging effect.