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안구적출에 따른 위둔덕의 칼슘결합단백질의 재구축 및 상호 연관성
안병수,고길석,안명수,김경주,권안성,정명섭,박춘매,조병옥,김진우,Samudra Acharya,Parmeshwar Narayan Amatya,장인엽 朝鮮大學校 附設 醫學硏究所 2007 The Medical Journal of Chosun University Vol.32 No.1
Background: Superior colliculus is a part of midbrain, and participates in the visual reflexes, It receives afferent fibers from optic nerve, visual cortex, and spinotectal tract. After optic deprivation, the microscopic structure of the superior colliculus changed. Calcium-binding proteins (CBPs) Play an important role in the neuronal protection, differentiation and reorganization of the central nervous system, Objectives and Methods: The effects of neonatal retinal deafferentation on a CBPs, calbindm D-28k (CB), Parvalbumin (PB) and calretimn (CR), and the existence of colocalization between the CBPs were examined immunohistochemically in the rat superior colliculus. Results: On the experimental (contralateral to enucleation) side of superior colliculus, the number of CB-immunoreactive (IR) cells was reduced (77.4% compared to control), but not fibers. The number of PB-IR neurons and fibers was also reduced on the experimental side (88.5% compared to control), In the other hand, the CR-IR cells were dramatically increased (642% compared to control), but CR-IR fibers were markedly decreased on the experimental side. The colocalization between CB-CR and PV-CR was rarely observed in the superior colliculus Conclusion: These results suggest that the changes of retinotectal projection may alter the expressional pattern of CBPs in different manners; relatively stable in CB- and PV-IR neurons and plastic in CR-IR neurons.
Kim, Jae-Hwan,Lee, Seong-Su,Kim, Seung Chang,Choi, Seong-Bok,Kim, Su-Hyun,Lee, Chang Woo,Jung, Kyoung-Sub,Kim, Eun Sung,Choi, Young-Sun,Kim, Sung-Bok,Kim, Woo Hyun,Cho, Chang-Yeon Asian Australasian Association of Animal Productio 2016 Animal Bioscience Vol.29 No.5
Many studies have reported the frequency and distribution of haplogroups among various cattle breeds for verification of their origins and genetic diversity. In this study, 318 complete sequences of the mtDNA control region from four Korean cattle breeds were used for haplogroup classification. 71 polymorphic sites and 66 haplotypes were found in these sequences. Consistent with the genetic patterns in previous reports, four haplogroups (T1, T2, T3, and T4) were identified in Korean cattle breeds. In addition, T1a, T3a, and T3b sub-haplogroups were classified. In the phylogenetic tree, each haplogroup formed an independent cluster. The frequencies of T3, T4, T1 (containing T1a), and T2 were 66%, 16%, 10%, and 8%, respectively. Especially, the T1 haplogroup contained only one haplotype and a sample. All four haplogroups were found in Chikso, Jeju black and Hanwoo. However, only the T3 and T4 haplogroups appeared in Heugu, and most Chikso populations showed a partial of four haplogroups. These results will be useful for stable conservation and efficient management of Korean cattle breeds.
박현준,조균택,문경일,김태범,김상섭,Park, Hyun-Jun,Cho, Kyun-Taek,Moon, Kyoung-Il,Kim, Tae-Bum,Kim, Sang-Sub 한국금형공학회 2021 한국금형공학회지 Vol.15 No.3
Plastic injection molds used for rapid heating and cooling must minimize surface damage due to friction and maintain excellent thermal and low electrical conductivity. Accordingly, various surface treatments are being applied. The properties of Al<sub>2</sub>O<sub>3</sub> coating and DLC coating were compared to find the optimal surface treatment method. Al<sub>2</sub>O<sub>3</sub> coating was deposited by thermal spray method. DLC films were deposited by sputtering process in room temperature and high temperature PECVD (Plasma enhanced chemical vapor deposition) process in 723 K temperature. For the evaluation of physical properties, the electrical and thermal conductivity including surface hardness, adhesion and wear resistance were analyzed. The electrical resistance of the all coated samples was showed insulation properties of 24 MΩ/sq or more. Especially, the friction coefficient of high temp. DLC coating was the lowest at 0.134.
Obesity induced by high fat diet in Rhomboid family member 2 (Rhbdf2) KO mice
Sung-Jun Kim(Sung-Jun Kim),Seul Gi Park(Seul Gi Park),Young-Sub Byun(Young-Sub Byun),Eun-Kyoung Kim(Eun-Kyoung Kim),Sang-Mi Cho(Sang-Mi Cho),Harim Kim(Harim Kim),Young-Suk Won(Young-Suk Won),Hyoung-Ch 한국예방수의학회 2017 한국예방수의학회 학술대회자료집 Vol.2017 No.-
조헌,장성호,임혜자,김난숙,이경섭 대한마취과학회 1995 Korean Journal of Anesthesiology Vol.28 No.3
Postoperative acute renal failure is a major problem in surgical patients and may result from varieties of prerenal, renal, and postrenal causes. Mortality of this disorder was distressingly high despite improvement in dialysis and intensive general care. Clinical data from 31 patients with postoperative acute renal failure treated between 1989 and 1993 were reviwed. The results were summerized as follows: 1) There were 16 men and 15 women with a median age of 49 years. Twenty one(6896) of 31 patients were over 50 years old. 2) General surgery 14 cases(45%), cardiac surgery 11 cases(35%), neurologic surgery 3 cases, orthopedic surgery 2 cases and gynecologic surgery 1 case were performed. 3) Preoperative clinical characteristics were over 50 years old in 21 cases(68%), antibiotics in 9 cases(29%), infections in 6 cases, hypertention in 5 cases, diabetes mellitus in 4 cases, radiocontrast agent in 3 cases, jaundice in 3 cases, cardiovascular disease in 3 cases, emergeney operation in 10 cases(32%), and trauma in 4 cases. 4) Perioperative hypotension was 9 cases(29%) and massive blood transfusion was 20 cases(65%). Fourteen of the 31 patients(45%) received intraoperative diuretics, and twenty of 31 patients(66%) received diuretics within 24 hours after operation. 5) Enflurane(66%) was the most commonly used anesthetic, followed by intravenous anesthetics(16%), isoflurane(10%), and halothane(10%). 6) When acute renal failure was diagnosed, urinalysis showed gross or microhematuria in 27 cases (87%), pyuria in 10 cases(32%), and proteinuria in 21 cases(68%). Urine specific gravity in 7 patients(23%) were below 1.010. Routine CBC showed anemia less than 10 g/dl in 16 cases(52%), and thrombocytopenia less than 50,000/mm in 10 cases(32%). During postoperative period blood chemistry showed elevated BUN in most of the cases. BUN levels in 20 cases(65%) were above 60 mg/dl and serum creatinine levels in 26 cases(84%) were above 3mg/dl. Serum sodium levels in 4 cases were below 125 mEq/L and serum potassium levels in 11 cases(35%) were above 6 mEq/L. 7) Nineteen(61%) of 31 patients were nonoliguric type, nine(29%) were oliguric type and three(10%) were anuric type. Fourteen(45%) of 31 patients underwent hemodialysis. 8) Postoperative complications were developed in 25 cases(81%) and pulmonary complications were most common. 9) Median time interval between onset of acute renal failure and death was 18 days(rang to 45 days) and. median time to recovery was 24 days(range, 3 to 72 days). 10) Twenty(6496) of 31 patients were died. Main causes of death were respiratary failure, cardiac failure and sepsis. The high mortality rate was seen in patients with abdceninal operation(79%), postoperative complications(80%), over 50 years old(71%) and oliguric(78%) or anuric(100%) renal failure.