• Title/Summary/Keyword: Rat Brain

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A Study on the Origin of Human Governance Periods in the Hidden Stems (인원용사(人元用事)의 연원에 관한 연구)

  • Won-Ho Choi;Na-Hyun Kim;Ki-Seung Kim
    • Industry Promotion Research
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    • v.9 no.1
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    • pp.203-212
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    • 2024
  • The purpose of this study is to examine the validity of Hidden Stems (支藏干) in the Four Pillars of Destiny with regard to the use of human governance periods in the hidden stems (人元用事). First, there is a theory of assigning period of governance for designated constituents (司令論) in the Hidden Stems of the Earthly Branch. Second, there is a theory that determines the structure of the Four Pillars by the Exposed Constituent from the Hidden Stems (透出論) in the Month Earthly Branch. Since these two theories conflict with each other and cause confusions, this study examined the theory of Hidden Stems in the Four Pillars Classics and examined the historical development of governance period for constituent hidden stems and their validity. The results of the study are as follows: Firstly, the number of dates assigned to respective constituents does not correspond to the calendarical principle, and the assignment of the governance dates for each constituent does not correspond to the principles proposed in ancient books of Four Pillars. Second, though it is said in the Classics that 72 days are equally assigned to each of the Five Elements, actual distributed days for the five elements was 65 days for Wood, 55 days for Fire, 100 days for Earth, 65 days for Metal, and 65 days for Water. Third, though it is said that 7 days should be designated to Yang Earth Mu for the months of Tiger 寅, Monkey, Snake, and Pig, it is logically more legitimate to assign those days to Yin Earth Ki since the month before Tiger is Ox, and the month before Monkey is Goat. Lastly, rationale behind assigning Ki Earth only to Horse Oh as constituting Hidden Stem while disregarding months of Rat, Rabbit, and Rooster is considered not reasonable. Looking at these results comprehensively, it is concluded that the Exposed Constituent theory is logically more appropriate than Assigned Governance theory.

Effect of Cassia tora L. Powder Added-Diets on the Accumulation of Cadmium in Rat (결명자 첨가식이가 흰쥐의 체내 카드뮴 축적에 미치는 영향)

  • 김성조;백승화;허종욱;김운성;이주돈;강경원;박성혜;한종현;정성윤
    • Journal of the East Asian Society of Dietary Life
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    • v.12 no.6
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    • pp.554-565
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    • 2002
  • The purpose of this study is to investigate the effect of raw Cassia tora L. powder added-diets on reducing cadmium accumulation in rats. The experimental animals were Sprague-Dawley family(♂, 4 weeks) which was classified into normal group CN, compared group CS, Cd-added group Cl and groups C2, C3, C4 in which 0.5, 1.0 and 1.5% of the Cassia tora L. powder are added, respectively. The growth rate and food efficiency ratio, and the amounts of accumulated cadmium in rats for S weeks were measured and analyzed. The results are as follows; 1. The rates of weight gain decreased in the order of C3>C2>C4>Cn>Cs>Cl groups, and Cl group to which only cadmium water had been fed was the lowest among them. The correlation between groups Cl and C3 was significantly different at the 1% level. 2. Food efficiency ratio(FER) decreased in the order of C3>C2>Cs>Cn>C4>Cl, and the FERs of C3, C2, CS, CN and C4 are greater than that of Cl by 22.87, 19.59, 18.54, 14.20 and 13.17%, respectively. 3. As for the Cassia tora L. powder-added groups, the amounts of cadmium accumulated in organs and tissues, that is, the brain, heart, spleen, liver, lungs, testicles. kidney, femoral muscle and leg bones were 0.45 $\pm$ 0.04 to 0.83$\pm$0.04, 1.68$\pm$0.02 to 2.16$\pm$0.02, 3.26$\pm$0.05 to 4.62$\pm$0.27, 37.52$\pm$0.09 to 47.71$\pm$0.73, 1.07$\pm$0.10 to 1.66$\pm$0.04, 1.04$\pm$0.06 to 1.24$\pm$0.08, 36.79$\pm$0.20 to 39.61 $\pm$0.53, 0.87$\pm$0.02 to 1.00$\pm$0.02 and 0.65$\pm$0.17 to 1.27 $\pm$ 0.06 $\mu\textrm{g}$/g, respectively. 4. The accumulated Cd content for C4 was the lowest among Cassia tora L. powder-added groups. When the results for C4 are compared with those for Cl, it is observed that each cadmium content accumulated in the brain, heart spleen, liver, lungs, testicles, kidney. femoral muscle and leg bones is dropped by 49.03, 22.56, 36.02, 35.75, 41.75, 36.20, 37.00, 22.77 and 56.67 %, respectively. On the other hand. the accumulated Cd content increased in the order of brain

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The Anti-depressive Effect of Samul-tanggahyangbuja on Chronic Mild Stress in Ovariectomized Rats (만성 스트레스 모델에서 사물탕가향부자의 항우울 효과)

  • Jeong, Ji-Hye;Choi, Chang-Min;Seo, Yun-Jung;Cho, Han-Baek;Kim, Song-Baek
    • The Journal of Korean Obstetrics and Gynecology
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    • v.26 no.4
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    • pp.30-47
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    • 2013
  • Objectives: The purpose of the present study is to investigate anti-depressive effects of Samul-tanggahyangbuja (SGH) on ovariectomized and chronic mild stress (CMS) induced rats. Methods: Ovariectomized rats were exposed to CMS for 4 weeks. Changes of depression behavior were tested by using sucrose intake test (SIT), elevated plus maze (EPM), forced swimming test (FST) and Morris water maze test (MWMT) in rats until being orally medicated with SGH (100 or 400 mg/kg/day). In addition, the serum levels of corticosterone (CORT), IL-4, IL-$1{\beta}$ and changes of 5-HT in the brain were measured. Results: 1. SGH 400 mg/kg treated group (SGH 400) significantly increased amount of sucrose intake compared with the control group (p<0.05). 2. SGH 100 mg/kg treated group (SGH 100) and SGH 400 significantly increased the time spent in the open arms of the EPM compared with the control group (p<0.01). SGH 400 also significantly increased the number of crossing of the open and closed arms compared with the control group (p<0.05). 3. SGH significantly shortened the immobility time in FST compared with the control group (SGH 100 p<0.05, SGH 400 p<0.01). 4. SGH significantly increased performance of acquisition trials compared with the control group (p<0.05, on day 4, 5 of SGH 100 and 400). SGH 400 also significantly increased performance of retention trials compared with the control group (p<0.05). 5. The serum levels of corticosterone and IL-4 were not significantly different among the groups. There were no changes on the serum levels of corticosterone, IL-$1{\beta}$ and IL-4 after administration with SGH. 6. SGH 400 significantly increased the level of 5-HT in the hippocampus compared with the control group (p<0.05). SGH significantly increased the levels of 5-HT in the hypothalamus compared with the control group (SGH 100 p<0.05, SGH 400 p<0.01). Conclusions: These results suggest that SGH has the anti-depressive effect on ovariectomized rat and affect 5-HT system rather than hypothalamic-pituitary-adrenal (HPA) axis and immune system.

Studies on the Seroimmunodiagnosis of Parasitic Diseases (기생충질환(寄生蟲疾患)의 면역혈청학적(免疫血淸學的) 진단(診斷)에 관한 연구(硏究))

  • Rim, Han-Jong;Lee, Joon-Sang;Joo, Kyoung-Hwan;Eam, Kee-Seon;Chung, Myung-Sook
    • Journal of agricultural medicine and community health
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    • v.13 no.1
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    • pp.41-59
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    • 1988
  • In many of the helminthic infections, diagnosis is accomplished by the demonstration of the eggs or, occasionally the adult worms or their parts. Diagnosis can be made by the identification of larval stage obtained from stool or surgically extracted materials too. However some kinds of parasitic disease can not be diagnosed by above mentioned procedure alone. Brain cysticercosis, ectopic paragonimiasis, Capillaria hepatica infection in liver is a good example. In such a case, immunologic method would be helpful for the decision of physician. In this paper, immunologic tools such as indirect hemagglutination test, indirect fluorescent antibody test, circumoval precipitation test, ELISA, western blot were applied for the diagnosis of Clonorchis sinenisis, Cysticercosis and C. hepatica a infection and their efficacy was evaluated. The results obtained were as follows ; 1) In the diagnosis of clonorchiasis, ELISA revealed sensitiveity of 83.3%, but cross reaction against antibody of Paragonimus westermani and Taenia species were observed. For the identification of cross reaction and species specific band of Ag-Ab reaction, western blot was applied. 59Kd relative molecular weight and 21Kd band were identified as a Clonorchis sinensis specific band. OD values of ELISA performed with sera of 18 months after praziquantel treatment decreased to half level compared to that of before treatment. Negative conversion rate of ELISA after 18 months of treatment was 60%. 2) In the diagnosis of cysticercosis, IFAT disclosed 95.8%(23/24) of sensitivity and reaction was most strongly occurred in inner membrane. ELISA revealed 90.0% (36/40) of sensitivity, but cross reaction was observed in both technique. In western blot, 91, 63 and 21Kd Mw bands were identified as a strongly positive band. Among them 63Kd band showed positive reaction against almost all sera of cysticercosis patient. 3) Circumoval precipitation, ELISA, IFAT, showed 85.0% of sensitivity in the diagnosis of C. hepatica infection in rat. The antigenic localities were inner membrane of sectioned egg antigen on the prectipitates around the mucoid plugs which were induced by circumoval precipitation reaction. Sera from rats infected with 2000eggs were collected periodically to observe the changing patterns of antibody titers by IFAT and ELISA, which showed that high titers were detected at weeks 3 and 5, then gradually declined through weeks 9until to negatively converted at weeks 13.

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Effects of Polygoni multiflori radix Liquors on the Memory Impairment of Rat (하수오 침출술이 흰쥐의 기억력 손상에 미치는 영향)

  • Kong, Hyun-Joo;Shin, Seung-Ryeul;Hwang, Su-Jung;Lee, Kyung Eun;Jang, Jung-Hyeon;Yang, Kyung-Mi
    • Culinary science and hospitality research
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    • v.22 no.4
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    • pp.128-142
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    • 2016
  • This study was carried out to investigate the effect of memory impairment in rats fed alcohol liquid diets. The rats were randomly divided into 4 groups. While the control(C) group received a diet containing 12% of the daily calories with isocarbohydrate, the other groups received a diet containing 12% of the daily total calories with 36% Soju (A), 25% Cynanchi wilfordii radix liquors (WA), and 25% Polygoni multiflori radix liquors (RA) for 6 weeks. After 6 weeks, ADH activity in the brain tissue of the Group A was found to be significantly lower than Group C but significantly higher than both Groups WA and RA(p<0.05). ADLH activity was revealed to be the highest in the Group WA (p<0.05). The concentration of acetaldehyde, a highly toxic metabolite, was the highest in the Group A, but its concentration decreased significantly if fed a liquid diet containing WA. The concentration of acetylcholine, which has a high correlation with memory impairment, was significantly lower in Group A, although Group RA group was the highest compared to the other groups (p<0.05). AChE activity of the Group A was higher than Group C but lower in Groups WA and RA (p<0.05).

Pressor Action of Physostigmine in the Rabbit (토끼에 있어서의 Physostigmine의 혈압상승작용)

  • Kim, Je-Bong
    • The Korean Journal of Pharmacology
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    • v.26 no.2
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    • pp.101-111
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    • 1990
  • The effect of physostigmine (PS), which has been shown to act on the muscarinic receptors in the brains of the rat, dog and cat, on the arterial blood pressure (BP) was investigated in urethane-anesthetized rabbits. Intravenous (iv) PS, $25{\sim}300\;{\mu}g/kg$, caused little change in BP. However, after treatment of rabbits with either of chlorisondamine (CS), hexamethonium, intracerebroventricular (icv) clonidine, icv xylazine and icy reserpine iv PS produced a pressor response. Spinalization of the rabbit also caused iv PS to increase BP. The pressor effect of iv PS in CS-treated rabbits was markedly reduced after prazosin or pirenzepine. Iv PS inhibited the pressor response to McN-A-343 in CS-treated and in spinal rabbits; alternately during the infusion of McN-A-343 iv PS failed to produce the pressor response. The pressor response to DMPP was not affected by iv PS. Icv PS, $12{\sim}200\;{\mu}g/kg$, produced a pressor response which was accentuated after CS-treatment. This pressor effect was inhibited, though not complete, by prazosin or by pirenzepine. A simultaneous treatment of rabbits with both $[Sar^{1},\;Ala^{8}]-angiotensin$ II, an angiotensin II antagonist, and prazosin or pirenzepine almost completely abolished the pressor effect of icv PS, whereas the angiotensin II antagonist did not enhance the inhibitory effect of pirenzepine and prazosin on the pressor response to iv PS . Icv pirenzepine blocked the pressor response to icv PS without affecting that to iv PS. The present results show that the pressor response to iv PS in CS-treated and in spinal rabbits arises from stimulation of the muscarinic receptors in the sympathetic ganglia, whereas the pressor response by icv PS via activation of the muscarinic receptors in the brain which causes an enhancement in the outflow of sympathetic discharge and angiotensin. The results also suggest that iv PS is unable to produce a pressor response in the rabbit unless the sensitivity of the gangionic muscarinic receptors is altered by ganglionic nicotinic blockade, by the decrease of central sympathetic outflow on the sympathetic ganglia or by spinalization.

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The Antioxidative Activity of Glutathione-Enriched Extract from Saccharomyces cerevisiae FF-8 in In Vitro Model System (In Vitro 과산화지질에 미치는 glutathione 고함유 효모 Saccharomyces cerevisiae FF-8의 항산화효과)

  • Lee Chi-Hyeoung;Cha Jae-Young;Jun Bang-Sil;Lee Ho-Jun;Lee Young-Chun;Cho Yong-Lark;Cho Young-Su
    • Journal of Life Science
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    • v.15 no.5 s.72
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    • pp.819-825
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    • 2005
  • The Antioxidative accvities of the cell free extracts containing high glutathione by Saccharomyces cerevisiae FF-8 were tested in vitro experimental models : DPPH method for radical scavenging activity, ferric TBA method and ferric thiocyanate method using linoleic acid and tissue microsome for lipid peroxidation inhibitions. The concentration of intercellular glutathione by cultivating S. cerevisiae FF-8 in the YM optimal medium obtained $204\mug/ml$, which was increased by 2.76-fold from $74\mug/ml$ in the YM basal medium. A comparition between the YM basal medium and the YM optimal medium on antioxidative substance produced by S. cerevisiae FF-8 was investigated. In DPPH ($\alpha, \alpha-diphenyl-\beta-picrylhydrazyl$) method, the electron donating activity of the glutathione produced by S. cerevisiae FF-8 cultured in the YM optimal medium was as high as that of BHT ($ 0.05\%w/v $). The antioxidative a.tivity was measured by inhibition against lipid peroxidation of rat tissues' microsomes. The results of anti-oxidant activity of the cell free extracts by S. rerevisiae FF-8 cultured in the YM optimal medium was shown in the following order . $ liver 60.98\% > kidney 56.43\% > heart 52.91\% > brain 52.13\% > testis 45.57\% > spleen 42.95\% $. In antioxidative activities determined by ferric thiocyanate method and TBA methods against lipid peroxidation, the lipid peroxidation in the control mixture increased more rapidly than the typical peroxidation curve of linoleic acid from one day. The antioxidative activity of the cell free extracts by cultivating S. cerevisine FF-8 in the YM optimal medium were higher than that of the YM basal medium. These data indicate that the cell free extracts containing a high intercellular glutathione of S. cerevisiae FF-8 cultured in YM optimal medium showed strong antioxidative capacities by DPPH radical scavenging activity and ferric thiocyanate and TBARS measurements.

Evaluation of Maternal Behavior between Normal Parturition and Expected Cesarean Section in Rats (자연 분만 및 예정된 제왕절개 수술 랫드에 있어서 모성 행동의 차이에 대한 검토)

  • Lee, S.K.;Kang, H.G.;Kim, I.W.;Jeong, J.M.;Hwang, D.Y.;Kim, C.K.;Chae, K.R.;Cho, J.S.
    • Journal of Embryo Transfer
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    • v.22 no.3
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    • pp.161-165
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    • 2007
  • Oxytocin is a neurohypophyseal hormone which has multiple functions in mammals. Mainly, oxytocin regulates milk ejection and has an effect on uterine contraction and is related to maternal behavior. Maternal behavior is believed to be suppressed by stress and facilitated by oxytocin. In the cesarean section, oxytocin may be administrated into uterus to promote uterine involution. The present study aimed to test the effect of oxytocin into uterus on maternal behavior of rats with cesarean section. It was measured the effects on maternal behavior of oxytocin infused into uterus in rats with cesarean section as a stressor. In the first experiment, pup survival rate of between a control group and a group with laparotomy as a stress in natural parturition rats was compared. In the second experiment, survival rate for 2 weeks and maternal pup searching behavior (MPSV) were observed in one cesarean sectioned group without oxytocin and the other cesarean sectioned group with oxytocin. Infanticide was observed in stressed group in the first experiment while a normal maternal behavior was observed in a control one. In the second experiment, MPSV was only observed in a cesarean sectioned group with oxytocin and infanticide was observed in two groups except one rat which is thought to be affected by oxytocin as operated relatively late. This is the first study to show that the administration of oxytocin into uterus in the cesarean section is not involved in the regulation of maternal behavior in rats. In conclusion, this study proves the needs of oxytocin into brain in cesarean section related rats model and further study of maternal behavior list, like MPSV.

Effect of the Various Recovery Diets on the Body Composition of Protein-depleted Rat (각종 회복식이가 무단백식이를 섭취한 흰쥐의 체구성 성분에 미치는 영향)

  • Choi, Young-Ran;Suh, Dong-Hee;Kim, Mi-Kyung;Kim, Sook-He
    • Journal of Nutrition and Health
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    • v.10 no.1
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    • pp.1-9
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    • 1977
  • The changes of the total body composition, internal organs, skeletal muscles, and epididymal fat pad in rats fed protein depletion diet and 4 different recovery diets were examined. Seventy-eight male Sprague-Dawley rats weighing $212{\pm}2$ gr were used, and the results were as follows : A) After the 2 weeks of protein depletion, body weight decreased about 20% from the initial weight. It was mainey due to the total body lipid reduction. Among various organ weights, liver and spleen reduced $35{\sim}58%$, kidney and heart reduced $18{\sim}30%$, and muscles reduced $2{\sim}13%$, while brain, epididymal fat pad were not changed significantly. In regarding protein and lipid contents of these tissues, protein in liver, lipid in muscle, and both in spleen were markedly reduced. B) With the 2 weeks of feeding recovery diets, the increases of body weight were different among 4 Groups. High-fat group gained at the highest level (67%), and high-CHO group the lowest (30%). Total body composition (%) cf the standard and high-protein groups recovered to the level of 0 day protein depletion, while protein in the high-fat group and water in the high-CHO group decreased, and fat in these 2 groups increased. Weights of organs and muscles of the high-protein and high-fat groups were similar to the standard group and tllose of the high-CHO group were lower than the standard group. Composition of organs and muscle in the high-protein group was similar to the standard group, while the N contents of the high-fat and high-CHO groups were lower an the lipid content of the high-fat group was higher than the standard group. The weight and lipid content of epididymal fat pad were the highest in the high-fat group.

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Effects of electromagnetic stimulation on neurogenesis and neuronal proliferation in rat hippocampal slice culture (실험 쥐 해마조직배양에서 전자기 자극이 신경조직발생 및 증식에 미치는 영향)

  • Kim, Deok-Soo;Choi, Eung Sang;Chae, Soo Ahn
    • Clinical and Experimental Pediatrics
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    • v.49 no.5
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    • pp.558-564
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    • 2006
  • Purpose : Transcranial electromagnetic stimulation(TMS) is a noninvasive method which stimulates the central nervous system through pulsed magnetic fields without direct effect on the neurons. Although the neurobiologic mechanisms of magnetic stimulation are unknown, the effects on the brain are variable according to the diverse stimulation protocols. This study aims to observe the effect of the magnetic stimulation with two different stimulation methods on the cultured hippocampal slices. Methods : We obtained brains from 8-days-old Spague-Dawley rats and dissected the hippocampal tissue under the microscope. Then we chopped the tissue into 450 µm thickness slices and cultured the hippocampal tissue by Stoppini's method. We divided the inserts, which contained five healthy cultured hippocampal slices respectively, into magnetic stimulation groups and a control group. To compare the different effects according to the frequency of magnetic stimulation, stimulation was done every three days from five days in vitro at 0.67 Hz in the low stimulation group and at 50 Hz in the high stimulation group. After N-methyl-D-aspartate exposure to the hippocampal slices at 14 days in vitro, magnetic stimulation was done every three days in one and was not done in another group. To evaluate the neuronal activity after magnetic stimulation, the $NeuN/{\beta}$-actin ratio was calculated after western blotting in each group. Results : The expression of NeuN in the magnetic stimulation group was stronger than that of the control group, especially in the high frequency stimulation group. After N-methyl-D-aspartate exposure to hippocampal slices, the expression of NeuN in the magnetic stimulation group was similar to that of the control group, whereas the expression in the magnetic non-stimulation group was lower than that of the control group. Conclusion : We suggest that magnetic stimulation increases the neuronal activity in cultured hippocamal slices, in proportion to the stimulating frequency, and has a neuroprotective effect on neuronal damage.