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The Activity of Dopamine $\beta$-Hydroxylase of Central Nervous System in Genetically Epilepsy Prone Rats

  • Park, Youn-Joo;Chung, Hye-Joo;Lee, Kwang-Ho;Ko, Kwang-Ho
    • Archives of Pharmacal Research
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    • v.14 no.2
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    • pp.172-175
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    • 1991
  • Abnormality in the central noradrenergic system may be related to the seizure prone state in the genetically epilepsy prone rats (GEPR). The present work deals with the characterization of the deficit in noradrenergic system if susceptitibility and intensity of seizure are dependent on central noradrenregic activities by comparing the activities of dopamine $\beta$-hydroxylase (DBH) which hydroxylates dopamine into noradrenaline. DBH activities were measured in 5 areas of brain of normal rats, native GEPR and severe GEPR. The results suggest that lower DBH activities in the midbrain of GEPRs may positively be coupled to the susceptibility to seizure, whereas the same characteristics of the native or severe GEPR are not neccessarily in parallel with the intensity of seizure.

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Robotically Assisted Microsurgery: Development of Basic Skills Course

  • Liverneaux, Philippe Andre;Hendriks, Sarah;Selber, Jesse C.;Parekattil, Sijo J.
    • Archives of Plastic Surgery
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    • v.40 no.4
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    • pp.320-326
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    • 2013
  • Robotically assisted microsurgery or telemicrosurgery is a new technique using robotic telemanipulators. This allows for the addition of optical magnification (which defines conventional microsurgery) to robotic instrument arms to allow the microsurgeon to perform complex microsurgical procedures. There are several possible applications for this platform in various microsurgical disciplines. Since 2009, basic skills training courses have been organized by the Robotic Assisted Microsurgical and Endoscopic Society. These basic courses are performed on training models in five levels of increasing complexity. This paper reviews the current state of the art in robotically asisted microsurgical training.

Extravasation Injury and Pressure Sore in Brain Damage Patient with Stiffness of the Limbs

  • Jung, Kyu Hwa;Choi, Hwan Jun;Kim, Jun Hyuk
    • Archives of Reconstructive Microsurgery
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    • v.23 no.1
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    • pp.36-39
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    • 2014
  • Extravasation injury refers to leakage of corrosive liquids from veins, resulting in tissue damage. The authors report on a case of extravasation injury to the left hand after administration of fluid to the antecubital area in a patient with brain damage. In order to minimize the effects of extravasation injury, rapid diagnosis and management are needed. In patients with stiffness, pressure sores can develop requiring more careful management by the medical staff.

Effect of Thyroid Hormones in Oxidative Stress in Rat Liver

  • Huh, Keun;Kwon, Tae-Hyub;Kim, Jin-Sook;Park, Jon-Min
    • Archives of Pharmacal Research
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    • v.21 no.3
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    • pp.236-240
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    • 1998
  • The effect of thyroid hormones on the hepatic xanthine oxidase activity was studied in rats after the intraperitoneal injections of comthyroid (triiodotyronine:thyroxine=1:4) at 0.3 mg/kg for 3 consecutive days. The aim of this study was to understand the precise mechanism of hyperthyroidism induced by oxidative stress. The concentration of lipid peroxides determined indirectly by the measurement of thiobarbituric acid reactants was increased in comthyroid treated rats. The hepatic glutathione content was decreased in comthyroid injected rat compared to the euthyroid state. It was also observed that the increment of xanthine oxidase activity has a profound role in oxygen radicals generation system in comthyroid treated rat. These findings suggest that the enhanced xanthine oxidase activity and depleting glutathione content in comthyroid treated rats result in pathophysiological oxidative stress including an increment of hepatic lipid peroxidation.

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Palmar Hand Wound Coverage with the Free Flaps

  • Roh, Si Young;Lee, Kyung Jin;Lee, Dong Chul;Kim, Jin Soo;Yang, Jae-Won
    • Archives of Reconstructive Microsurgery
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    • v.23 no.2
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    • pp.45-50
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    • 2014
  • Palmar soft tissue defects are best reconstructed using a replacement flap of proper size with adequate soft tissue stability for mechanical resistance as well as with protective sensation. Reconstructive approaches are dictated by injury mechanism, defect size and location, and the status of the wound bed and tendino-skeletal structure. While uninjured portions of the hand can be used as a source for local flaps, the use of free flaps allows for maximal access for selection of the most ideal replacement tissue for the defect to be restored as close to the initial state as possible. Here, we review the garden variety of free flaps used in reconstruction of palmar soft tissue defects.

A Study on Form of Vessel for Traditional Fementation Storage Foods and that Materials-Concentrated on Soy Bean paste (전통발효 저장식품의 용기형태와 그 재료에 관한 연구)

  • 김홍산;권일현
    • Archives of design research
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    • v.14
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    • pp.233-243
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    • 1996
  • Our Country are called as a suzerain State of fermentation food, and preservative Technique was developed, because the specific character and the form of pottery were the best superior utensil of storage. The form couldn't give an explanation with scientifically, but we have used it for a few thousand years, which must get transformed from most compatible and reasonable form of fermentation. At present, a pottery was disappeared by the growth of the industrial society, and even the scientific form concealed it looks. For that reason, we apply the form into looks of a modernistic mechanism, and it intends to suggest a new direction to better the pottery of a formentation food.

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Expression of Extracellular Superoxide Dismutase Protein in Diabetes

  • Kim, Chul Han
    • Archives of Plastic Surgery
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    • v.40 no.5
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    • pp.517-521
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    • 2013
  • Background Diabetes is characterized by chronic hyperglycemia, which can increase reactive oxygen species (ROS) production by the mitochondrial electron transport chain. The formation of ROS induces oxidative stress and activates oxidative damage-inducing genes in cells. No research has been published on oxidative damage-related extracellular superoxide dismutase (EC-SOD) protein levels in human diabetic skin. We investigated the expression of EC-SOD in diabetic skin compared with normal skin tissue in vivo. Methods The expression of EC-SOD protein was evaluated by western blotting in 6 diabetic skin tissue samples and 6 normal skin samples. Immunohistochemical staining was also carried out to confirm the EC-SOD expression level in the 6 diabetic skin tissue samples. Results The western blotting showed significantly lower EC-SOD protein expression in the diabetic skin tissue than in the normal tissue. Immunohistochemical examination of EC-SOD protein expression supported the western blotting analysis. Conclusions Diabetic skin tissues express a relatively small amount of EC-SOD protein and may not be protected against oxidative stress. We believe that EC-SOD is related to the altered metabolic state in diabetic skin, which elevates ROS production.

Effect of Sodium Taurodihydrofusidate on Nasal Drug Delivery: Differences in Its Concentration and Penetrant Molecular Weight

  • Hosoya, Ken-ichi;Kubo, Hiroyuki;Takashi-Akutsu;Hideshi-Natsume;Kenji-Sugibayashi;Yasunori-Morimoto
    • Archives of Pharmacal Research
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    • v.17 no.2
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    • pp.57-59
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    • 1994
  • The effect of sodium taurodihydrofusidate (STDHF) on drug permeation across nasal mucosa was studied in vitro using Ussing type diffusion chamber. Disodium cromoglicate (DSCG, M.W.5123) and fluorescein isothiocyanate-dextran (FD) of different molecular wieghts (M.W. 4400-71200) were used as model drugs. Pemeation profiles of DSCG and FDs showed a typical pseudo steady-state curve with short lag time. The pemeability coefficient of FD (M.W. 9400) sigmodially increased with increasing STDHF concentration. It also enhanced the DSCG pemeation. Interestingly the enhancement efficacy was independent of molecular weight of penetrants.

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Synthesis and Antiviral Activity of Fluoro-substituted Apio Dideoxyuncleoside

  • Hong, Joon-Hee;Kim, Hea-Ok;Moon, Hyung-Ryong;Jeong, Lak-Shin
    • Archives of Pharmacal Research
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    • v.24 no.2
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    • pp.95-99
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    • 2001
  • Novel fluoro-substituted apio dideoxyuncleoside(($\pm$)-3a and ($\pm$)-3b) were efficiently synthesized stalling from 1,3-dihydroxyacetone via Horner-Emmons olefination as a key step. Cyclization of fluoro ester ($\pm$)-6 under acidic conditions to the fluorolactone was smoothly proceeded in favor of trans-fluorolactone due to the favorable transition state with equatorial hydroxymethyl substituent. Unfortunately the final nucleosides($\pm$) -3a and ($\pm$)-3b were found to be inactive against several viruses such as HIV-1, HSV- I , HSV-2 and HCMV.

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An in Vivo Study of Dopamine Metabolism in Hyperglycemic Rat Striatum

  • Lim, Dong-Koo;Lee, Kyung-Min
    • Archives of Pharmacal Research
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    • v.18 no.4
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    • pp.249-255
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    • 1995
  • The changes in the levels of the extracellular dopamine metabolites and the responses to various dopamine agents were studied by using microdialysis inhyperglycemic rat striatum. The hyperglycemia were induced by the administriation of streptozotocin (40 mg/kg, i.p. for 3 days.). The basal levels of striatal dihydroxyphenylacetic acid (DOPAC) and homovanillic acid (HVA) were significantly decreased in hyperglycemic rat striatum. After the administration ofl D-1 and D-2 receptor antagonists, SCH-23390 and (-)sulpiride, to rats 14 days after the last administration of STZ, the increased rates in DOPAC levels were higher in hyper- than in normoglycemic rats. However, after the administration of dopamine autoeceptor agonist, 3(-)PPP, the levels of the extracellular HVA were increased in normoglycemic rats, but those were not altered in hyperglycemic rats. The results indicate that the striatal dopamine activities were decreased in the hyperglycemic rats and suggest that release of dopamine may be decreased in hyperglycemic rats. Furthermore it suggest that the increase in the levels of the extracellular dopamine metabolites by dopamine antagonists might be dur to the incrrased sensitivities of the dopamine receptors in hyperglycemic state.

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