Effects of $LR_3$(太衝), $GB_{39}$(懸鍾) and $SP_4$(公孫) acupuncture on lipid composition were investigated in rat fed high fat diet. The results obtained from this study are as follows : 1. In the all treatment groups, the body weight values after feeding the basal diet for 4 weeks were significantly decreased compared to the initial body weight. However the decrement of body weight showed a high in acupuncture groups compared to those of control group. In the acupuncture groups, the decrement of body weight showed a high in the $LR_3$ acupuncture groups. 2. The contents of plasma ${\beta}$-lipoprotein and free fatty acids showed a tendency to decrease in the acupuncture groups compared to those of control group and the values of $LR_3$ acupuncture groups showed a low in the acupuncture groups. 3. The contents of plasma triglyceride showed a low values in the complex treatment group of $LR_3,\;GB_{39}$ and $SP_4$. However among the other treatment groups, this values showed no significantly different. The contents of liver triglyceride showed a tendency to decrease in all acupuncture groups except to the complex treatment group of $GB_{39}$ and $SP_4$ acupuncture and in the acupuncture groups, $LR_3$ acupuncture groups were lower than $GB_{39}$ and $SP_4$ acupuncture groups. 4. The contents of plasma glucose showed a tendency to decrease by the acupuncture treatment and $LR_3$ acupuncture groups showed a lower values than other acupuncture groups. 5. In the values of plasma glutamic oxaloacetate transferase activity, $LR_3$ acupuncture group and the complex treatment group of $LR_3,\;GB_{39}$ and $SP_4$ acupuncture were a lower values than other treatment groups and among the other treatment groups showed no significantly different. The values of plasma glutamic pyruvate transferase activity showed no significantly different among all the treatment groups. 6. Contents of plasma and liver total cholesterol showed a tendency to decrease in $LR_3$ acupuncture groups. However those of the other groups showed no significantly different. 7. In the contents of plasma LDL-cholesterol, $LR_3$ acupuncture groups were a lower values than other groups, however among the other groups showed no significantly different. The contents of plasma HDL-cholesterol showed a tendency to increase in the acupuncture groups, however these values showed no significantly different.
Objective: The aim of this study was to investigate anti-ischemic effect of LR1 HT8 Reduction in Acupuncture Methods: I designed to investigate whether LR1 HT8 Reduction in Acupuncture affects cerebral hemodynamics [regional cerebral blood flow(rCBF), pial arterial diameter(PAD), mean arterial blood pressure(MABP)] in normal rats and to make manifest whether LR1 HT8 Reduction in Acupuncture is mediated by cyclooxygenase or guanylate cyclase. The changes of rCBF and MABP were determinated by laser-doppler flowmetry(LDF), and the change of PAD was de terminated by video microscope and width analyzer. Results: The results were as follows; 1. LR1 Reduction in Acupuncture was increased rCBF and PAD, but decreased MABP. 2. HT8 Reduction in Acupuncture was significantly increased rCBF, but decreased MABP, and increased PAD. 3. LR1 HT8 Reduction in Acupuncture was significantly increased rCBF, PAD, but decreased MABP after withdrawing of the needle. This results suggest that LR1 HT8 Reduction in Acupuncture increased significantly rCBF by dilating PAD. 4. Pretreatment with indomethacin(1mg/kg, i,v.) was significantly inhibited LR1 HT8 Reduction in Acupuncture induced increase of rCBF and PAD, but increased LR1 HT8 Reduction in Acupuncture induced decrease of MABP after withdrawing of the needle. 5. Pretreatment with methylene blue($10{\mu}g/kg$, i,v.) was decreased LR1 HT8 Reduction in Acupuncture induced increase of rCBF and PAD, but accelerated LR1 HT8 Reduction in Acupuncture induced decrease of MABP. Conclusions: I suggest that LR1 HT8 Reduction in Acupuncture has an anti-ischemic effect through the improvement of cerebral hemodynamics, and the mechanism is mediated by cyclooxygenase.
Park, Eun-ju;Na, Chang-su;Yun, Yeu-chung;Cho, Myung-rae
Journal of Acupuncture Research
/
v.20
no.1
/
pp.1-12
/
2003
Objectives : The purpose of this study is to compare Xingjian(LR2) Shaofu(HT8) with Dadun(LR1) Shaofu(HT8) on Blood Pressure in Hypertensive RAT induced by Two Kidney One Clip(2KIC). Methods : This experiments was to investigate the effects of LR2 HT8(originated from ${\ll}$Classic on Difficulty${\gg}$ Shi Ze Xie Qi Zi), LR1 HT8(originated from ${\ll}$Ling Shu${\gg}$ Sheng Ze Xie Zhi) acupuncture on the blood pressure, cardiomegalic index, and plasma levels of atrial natriuretic peptide in hypertensive rat induced by 2K1C. Results: 1. Blood pressure was decreased significantly after third acupuncture of LR2 HT8. 2. Blood pressure was decreased significantly after acupuncture of LR2 HT8, but was increased after LR2 HT8. 3. Cardiomegalic index was not changed after acupuncture of LR2-HT8 and LR1-HT8 4. Plasma levels of atrial natriuretic peptide was increased significantly after acupuncture of LR2 HT8 but LR1 HT8 was not changed.
Lee Yoon-Yeong;Na Chang-Su;Ryu Chung-Ryul;Cho Myeng-Rae;Shin Jeong-Chul
Korean Journal of Acupuncture
/
v.20
no.4
/
pp.31-40
/
2003
Objectives : The purpose of this study is to investigate whether Haenggan(LR2) Reduction in Acupuncture affects cerebral hemodynamics〔regional cerebral blood flow(rCBF), mean arterial blood pressure(MABP)〕in normal rats, and to make manifest whether Haenggan(LR2) Reduction in Acupuncture is mediated by cyclooxygenase or guanylate cyclase. Methods : This experiments was to investigate at the other changes of rCBF and MABP at Haenggan(LR2) Reduction in Acupuncture in normal rats, pretreated rats with indomethacin(1 mg/kg, i.v.) and pretreated rats with methylene blue$(10\;{\,u}g/kg,\;i.v.)$. Results : 1. Haenggan(LR2) Reduction in Acupuncture was significantly increased rCBF during acupuncture and after withdrawing of the needle. 2. Haenggan(LR2) Reduction in Acupuncture was decreased MABP during acupuncture, but Haenggan(LR2) Reduction in Acupuncture was increased MABP in compared with normal condition. 3. Pretreatment with indomethacin(1 mg/kg, i.v.) was significantly inhibited Haenggan(LR2) Reduction in Acupuncture induced increase of rCBF, but was increased Haenggan(LR2) Reduction in Acupuncture induced increase of MABP. 4. Pretreatment with methylene blue$(10\;{\mu}g/kg,\;i.v.)$ was significantly decreased Haenggan(LR2) Reduction in Acupuncture induced increase of rCBF and MABP. This results suggest that Haenggan(LR2) Reduction in Acupuncture increased rCBF by dilating pial arterial diameter, and the mechanism of Haenggan(LR2) Reduction in Acupuncture is mediated by guanylate cyclase.
Objective : This study was performed to compare anti-inflammation, anti-oxidation and anti-bacterial effects of Ligustici Rhizoma (LR) extracted with two kinds of solvents, ethanol and distilled water. Methods : It is prepared two kinds of LR extracts 20, 50, 100 ${\mu}l/mg$ by first. MTT assay way to measure cytotoxicity is formed in Raw 264.7 cell. The anti-inflammation effect is measured by ability to inhibit production of NO in Raw 264.7 cell. The anti-oxidation effect was measured by DPPH Radical scavenging ability in HaCaT cell. The anti-bacterial effect was measured by inhibition zone diameter on Propionibacterium acnes. Results : 1. LR (20 ${\mu}l/mg$) extracted with ethanol was showed 80% cytotoxicity, LR (50 ${\mu}l/mg$) extracted with ethanol and LR (20, 50 ${\mu}l/mg$) extracted with water were showed 70% cytotoxicity, LR (100 ${\mu}l/mg$) extracted with ethanol and LR (100 ${\mu}l/mg$) extracted with water were showed 60% cytotoxicity in Raw 264.7 cell. 2. LR (100 ${\mu}l/mg$) extracted with ethanol was showed more significantly inhibitory effect on NO production than the water extraction. 3. Two kinds of LR extraction groups did not show significantly scavenging effect of DPPH radicals. 4. Two kinds of LR extractions did not have a inhibitory effect on Propionibactrium acnes. Conclusion : Two kinds of LR extracts have not cytotoxicity, statistically significant ability to scavenge DPPH radicals and effect to inhibit Propionibactrium acnes. LR extracted with ethanol only have a little effect to inhibit NO production. This study proposes that LR extracted with ethanol is more effective in anti-inflammation.
Microcystin-LR(MC-LR), a cyanobacterial toxin produced by Microcystis aeruginosa, causes severe hepatotoxicity. Here we investigated the morphologic changes of rat hepatocyte spheroid induced by exposure of MC-LR($10^{-6}M$) in vitro. In addition, to determine the effects of such toxin in the process of hepatocyte spheroid formation, primarily isolated hepatocytes were incubated with MC-LR and the process of spheroid formation was observed. In both hepatocyte spheroid and suspension culture systems, the morphologic changes caused by MC-LR were noticible at 5 min post exposure and were characterized by the loss of microvilli, cytoplasmic vacuolation, the accumulation of lipid droplets, and blob formation. Especially, the size and numbers of blob on the cell surface were increased as the incubation time prolonged and the appearance of electron dense bodies were observed in the cytoplasm of hepatocyte at 20 min post exposure. Furthermore, bile canaliculi-like structures in the hepatocyte spheroids were slightly widened and the process of spheroids formation was inhibited in the isolated hepatocytes incubated with MC-LR. These results indicate that morphologic changes in. the hepatocyte membrane and organelles seem to be typical events in showing the MC-LR induced hepatotoxic effects and the spheroid culture method might be a useful experimental tool to evaluate hepatoxicity since it reflects the in vivo status of hepatocytes.
Background: Early detection of various kinds of cancers nowadays is needed including colorectal cancer due to the highly significant effects in improving cancer treatment. The aim of this study was to evaluate the potential value of adiponectin, visfatin and resistin as early biomarkers for colorectal cancer patients. Materials and Methods: Serum levels of adiponectin, visfatin and resistin were measured by a sandwich-enzyme-linked (ELISA) assay technique in 114 serum samples comprising 34 patients with colorectal cancer (CRC), 27 with colonic polyps (CP), 24 with inflammatory bowel disease (IBD) and 29 healthy controls. The diagnostic accuracy of each serum marker was evaluated using receiver-operating characteristic (ROC) curve analysis. Results: The mean concentration of adiponectin was significantly higher in CRC and CP groups than IBD and control groups (P-value <0.05). Also the mean concentration of serum resistin was significantly elevated in the IBD and control groups compared to CRC and CP groups (P-value = 0.014). However, no significant difference was noted in patients of the CRC and CP groups. On the other hand, the mean concentration of visfatin was significantly elevated in CRC and control groups compared to CP and IBD groups (P-value = 0.03). ROC analysis curves for the studied markers revealed that between CRC and IBD groups serum level of adiponectin had a sensitivity of 76.7% and a specificity of 76% at a cut off value of 3940, +LR being 3.2 and -LR 0.31 with AUC 0.852, while serum level of adiponectin between CP and IBD had a sensitivity of 77.8% and a specificity of 75% at a cut off value of 3300, with +LR=3.11 and -LR = 0.3 with AUC 0.852. On the other hand the serum level of visfatin between CRC and CP groups had a sensitivity of 65.5% and a specificity of 66.7 at a cut off value of 2.4, +LR being 1.67 and -LR 0.52 with AUC 0.698. Also the serum level of resistin had a sensitivity of 62.5% and a specificity of 70.3% at a cut off value of 24500, with +LR=2.1 and -LR = 0.53 with AUC 0.685 between control and other groups. On the other hand by comparing control vs CP groups resistin had a sensitivity of 81.8% and a specificity of 70.8% at a cut off value of 17700, with +LR=2.8 and -LR = 0.26 with AUC 0.763 while visfatin had a sensitivity of 68.2% and a specificity of 70.8% at a cut off value of 2.7, with +LR=2.34 and -LR = 0.0.45 with AUC 0.812. Conclusions: These findings support potential roles of adiponectin, visfatin and resistin in early detection of CRC and discrimination of different groups of CRC, CP or IBD patients from normal healthy individuals.
Microcystin-LR, one of algal toxins induced by the eutrophication of a reservoir, is known to be harmful to human by adversely affecting our liver and brain. Hypochlorous acid is very efficient to remove Microcystin-LR in a clear well. The previous researches showed that CT, pH and temperature affected removal rate in batch tests. It was noted that hydrodynamic properties of clear well could also influence its removal rate. A mathematical model was built using an axial dispersion reactor model and software was used to simulate the removal rate. The model consisted of the second order differential equations including dispersion, convection, Microcystin-LR reaction with chlorine. Kinetic constants were obtained through batch tests with chlorine. They were $0.430{\times}10^{-3}L/mg/sec$ and $0.143{\times}10^{-3}L/mg/sec$ for pH 7.0 and 8.1, respectively. The axial dispersion reactor model was shown to be useful for the numerical model through conservative tracer tests. The numerical model successfully estimated the removal rate of Microcyctin-LR in a clear well. Numerical simulations showed that a small dispersion number, low pH and long hydraulic retention time were critical for higher removal rate with same chlorine dosage. This model could be used to optimize the operation of a clear well during an eutrophication season.
Objectives: This study was performed to investigate the effects of acupuncture therapy(AT, AT-9), electro-acupuncture therapy(EAT) and low level laser acupuncture therapy(LAT) at LRJ on the focal ischemia-induced by intraluminal filament insertion in rats. Methods : In the present syudy, the focal ischemia was induced by Intraluminal filament insertion into left middle cerebral artery. The subjects were divided into five groups after focal brain ischemia. (n=15, in each group) : Control with no treatment, AT with acupuncture at $LR_3$, AT-9 with acupuncture at $LR_3$ and rotating 9 times in a clockwise direction, EAT with electro-acupuncture at $LR_3$ and LAT with invasive laser acupuncture at $LR_3$. Anti-apoptotic and neuroprotective effects of acupuncture were observed by mGluR5 mRNA, Bax mRNA, Bcl-2 mRNA, Cytochrome C protein, Cresyl violet-stain and Choline acetyltransferase (ChAT)-stain in the hippocampus. Results: 1. In LAT, mGluR5, Cresyl violet-stain and ChAT-stain were increased. 2. In LAT, Cytochrome C protein was decreased. 3. In AT-9, Bax, Cytochrome C protein and the Bax/Bcl-2 ratio were decreased. 4. In AT-9, Bcl-2, Cresyl violet-stain and ChAT-stain were increased. 5. In EAT, Bcl-2 and Cresyl violet-stain were increased. Conclusions: These results suggests that LAT and AT-9 show anti-apoptotic and neuro-protective effects and that LAT and AT-9 may be useful for managing stroke by focal brain ischemia.
In the past, a very popular method for reducing the corrosion on zinc involved the use of chemical conversion layer coatings based on $Cr^{+6}$. However, there is an important problem with using chromium salts as a result of restrictive environmental protection legislation. This study investigated the optimum condition for galvanized steel using an organic/inorganic solution with a Ti composition. In the case of a fixed heat treatment time, the corrosion resistance values of LR-0727(1) and LR-0727(2) were improved as the heat treatment temperature increased, and the optimum minimum temperature decreased with the heat treatment time. At the optimum heat treatment condition of two coating solutions, the heat treatment time of the LR-0727(1) solution was shorter than LR-0727(2) for the same heat treatment temperature. LR-0727(1) coated specimens did not show desquamation, and all of the specimens showed a good adhesive property. In contrast, in the case of the LR-0727(2) coated specimens, desquamation arose. Therefore, the adhesive property of LR-0727(1) was superior to that of LR-0727(2). The pencil hardness had a 3H average for all of the coating solutions and heat treatment conditions. In the case of a corrosion resistance test with boiling water, the coated specimens of LR-0727(1) were discolored, but LR-0727(2) was not. Finally, LR-0727(1) was more moisture proof than LR-0727(2).
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