1.The wormicidal substances of fresh water fishes on Clonorchis sinensis I Preliminary research on the wormicidal substance from mucous substance of Carassius carassius.
Jae Ku RHEE ; Byeong Kirl BAEK ; Byung Zun AHN ; Young Jun PARK
The Korean Journal of Parasitology 1979;17(2):121-126
The present work was to observe the wormicidal effects of the external mucous substance of Carassius carassius and Pseudorasbora parva on cercaria, metacercaria (liberating) and adult of Clonorchis sinensis. The mucous substance which was extracted by ether was separated into various spots on the silica gel thin layer chromatography and separated into various fractions in the silica gel column chromatography, using petroleum ether(30 percent) and chloroform(70 percent) as solvent. R(f) 0.952 value of the silica gel thin layer chromatography and the first fraction (reddish yellow) frorn the silica gel column chromatography of the ether extracts from C. carassius had the wormicidal effect on all of the developing stages of C. sinensis. Cercaria was killed within 14 minutes, metacercaria within 27 minutes and adult 2.5 hours by the first fraction. But in the normal saline solution (control) and in the other fraction, cercaria and metacercaria were alive more than 24 hours and adult more than 72 hours. The extracts from the mucous substance of P. parva that is well penetrated by cercaria had no wormicidal effect on them.
parasitology-helminth-trematoda
;
clonorchiasis-Clnorchis sinensis
;
metacercaria
;
Carassius carassius
;
Pseudorasbora parva
;
mucous substance
;
chromatography
2.Clinical Use of Gianturco Expandable Metallic Stent in Benign Biliary Stricture: Result of Longterm Follow-up.
Young Ki BAEK ; Byung Jun SO ; Kwon Mook CHAE ; Byung Suk NOH
Korean Journal of Hepato-Biliary-Pancreatic Surgery 1999;3(1):51-58
BACKGROUND: Self-expandable metallic stent is an effective method in palliative treatment of malignant biliary stricture. However, it is controvesial in benign biliary stricture due to recurrent jaundice, cholangtitis, and finally, obstruction of stent. The purpose of this study was to determine the long-term effectiveness of Gianturco expandable metallic stents in benign biliary strictures. METHODS: We inserted Gianturco self-expandable metallic stent in 13 patients (42~69 years old, 6 men and 7 women) with benign biliary stricture between November 1991 and September 1994 in Wonkwang University Hospital. All patients had a previous history of biliary surgery and underwent balloon dilatation procedure for management of strictures. Insertion routes were percutaneous transhepatic biliary drainage tracks in 8 cases and T-tube tracks in 5 cases. The insertion site was the right intrahepatic duct in 5 cases, the left intrahepatic duct in 2 cases, both intrahepatic ducts in 1 case, common hepatic duct in 1 case, and distal common bile ducts in 4 cases. The stents used were 2~6cm in length and 8~12mm in diameter. The follow-up period was 46months to 81months(mean, 67months). RESULTS: The initial technical success rate was 100% with good immediate patency in all patients. Nine patients(69.2%) had no recurrence of the initial strictures during the follow-up period and 4 patients(30.7%) had further symptoms of biliary obstruction caused by recurrent cholangitis or intrahepatic duct stone formation. These 4 recurrent biliary strictures were treated by surgical methods. The recurrent stricture sites were distal common bile duct(1case), left intrahepatic duct(1case), both intrahepatic ducts(1case), and Roux-en-Y hepaticojejunostomy site(1case). CONCLUSIONS: According to the results of long-term follow-up, expandable metallic stent is a useful method in recurrent biliary strictures, especially in the case where operation is not feasible; poor risk patients, patients refusing operation, multiple biliary operation.
Bile
;
Cholangitis
;
Common Bile Duct
;
Constriction, Pathologic*
;
Dilatation
;
Drainage
;
Follow-Up Studies*
;
Hepatic Duct, Common
;
Humans
;
Jaundice
;
Male
;
Palliative Care
;
Recurrence
;
Stents*
3.A Case of Morlignant Hyperthermia during General Anesthesia .
Seun Gi BAEK ; Jong Seuh BAN ; Jun Seok GO ; Byung Woo MIN
Korean Journal of Anesthesiology 1982;15(4):620-626
Malignant hyperthermia still carries a high mortality despite of the increased understanding of the problem involved. A 33 year old relatively healthy male patient was admitted to this hospital via emergency room because of panperitonitis due to peptic ulcer perforation. We experienced acase of malignant hyperthermia which developed 20 minutes after induction of general anesthesia with thiopental sodium, succinylcholine chlovide, halothane, N2O and O2. The body temperature(esophageal) rose altupthy up to 41.2 degrees C and continued as a high fever for about 3 hours. The blood pressure and heart rate also increased and ventricular dyarrhythmia appeared. The etiology, triggering gactors, factors, clinical features, diagnosis treatment and safe anesthesia of malignant hyperthermia are discussed.
Male
;
Humans
;
Mortality
4.Aneurysmal bone cyst arising from the surgically removed craniofacial fibrous dysplasia in the long-term follow-up: a case report
Seungchul BAEK ; Byung Jun KIM
Archives of Craniofacial Surgery 2023;24(5):244-249
Fibrous dysplasia (FD) is a rare skeletal disorder characterized by abnormal fibro-osseous connective tissue replacing normal bone. Despite its benign behavior, craniofacial FD can cause morphological disfigurement, headache, and even blindness as a result of the produced mass effect. Surgical resection is recommended when the patient shows apparent clinical symptoms or aggravating facial asymmetry. Postoperative complications have been reported, such as hematoma, surgical site infection, abscess formation, resorption of the bone graft used for reconstruction, and recurrence. An aneurysmal bone cyst (ABC) is a rare benign bony lesion that can occur secondary to preexisting bone tumor. Secondary ABCs in craniofacial FD are extremely rare in the literature, accounting for less than 30, all of which are either case reports or series. We report an extremely rare case of symptomatic secondary ABC arising from craniofacial FD that had been misdiagnosed with abscess formation or recurrence and was surgically removed. Notably, 17 years elapsed between the primary surgery and the complication of secondary ABC. The patient underwent total removal of secondary ABC. After surgery, symptoms were relieved, with no recurrence observed during a 6-month follow-up.
5.Effects of the Recombinant Human Epidermal Growth Factor on Full-thickness Wound of the Rat Skin.
Rong Min BAEK ; Yong Tai SONG ; Seung Jun BAEK ; Jang Hern LEE ; Tai Gyun IM ; Byung Ha YOON
Journal of the Korean Society of Plastic and Reconstructive Surgeons 2003;30(2):201-208
The wound healing effect of topical application of the recombinant human epidermal growth factor(rhEGF) on full-thickness dermal injury was investigated. Two full-thickness excisions were made on the back of the experimental animals. The rhEGF was applied twice a day and the rate of wound closure was measured every day for 14 days. On the seventh postoperative day, the histological findings of epithelization and granulation were examined by Massons tichrome stain, and immunohistochemical staining for proliferating cell nuclear antigen (PCNA) and alpha-smooth muscle actin(alpha-SMA). The wound size was a significant reduction in the rhEGF treated groups as compared with the control group (p<0.05). However, there was no statistical difference in the wound size among the concentrations of the rhEGF treated group. Histological examination revealed that epithelization and granulation was increased significantly in the rhEGF group compared to control group (p < 0.01, 0.05). PCNA and alpha-SMA immunoreactive cells were observed at the margin of wound and the rhEGF treatments significantly increased the number of PCNA and alpha-SMA immunoreactive cells as compared to those of control group (p < 0.01, 0.05). Taken together, these findings suggest that rhEGF enhance the epithelial wound healing by the stimulate of cell proliferation. The wound contraction might be also affected by rhEGF application.
Animals
;
Cell Proliferation
;
Epidermal Growth Factor*
;
Humans*
;
Proliferating Cell Nuclear Antigen
;
Rats*
;
Skin*
;
Wound Healing
;
Wounds and Injuries*
6.Glomangiomyoma of the Trachea.
Sam Hyun BAEK ; Dong Myung HUH ; Jun Ho PARK ; Eun Kyoung KWAK ; Byung Ho KIM ; Won Kyung HAN
The Korean Journal of Thoracic and Cardiovascular Surgery 2011;44(6):440-443
A glomus tumor is an uncommon soft tissue tumor that is most commonly found in the subungual area and a glomus originating in the trachea is extremely rare. Histologically and ultrastructurally, these tumors have been divided into three subtypes: classic glomus tumors, glomangiomas, and glomangiomyomas. Glomangiomyomas account for less than 10% of all glomus tumors and are the least common type. We report a case of a 54-year-old man with glomangiomyoma of the trachea who presented with stridor. We treated the tumor by segmental resection and primary repair via a transcervical approach.
Glomus Tumor
;
Humans
;
Middle Aged
;
Respiratory Sounds
;
Trachea
;
Tracheal Neoplasms
7.Expressions and Clinical Significances of Angiopoietin-1, Angiopoietin-2, and Tie-2 Receptor in Patients With Colorectal Cancer.
Sunghoon HONG ; Hae Il JUNG ; Tae Sung AHN ; Han Jo KIM ; Kyu Taek LEE ; Moo Jun BAEK ; Sang Byung BAE
Annals of Coloproctology 2017;33(1):9-15
PURPOSE: Angiopoietin-1 (Ang-1) plays a crucial role in vascular and hematopoietic development, mainly through its cognate receptor, Tie-2. Increased levels of Ang-2 have been shown to be correlated with abnormal tumor angiogenesis in several malignancies. Hence, we estimated the increased expression of Ang-2 relative to Ang-1 in patients with colorectal cancer and correlated our finding with prognosis in order to investigate the relationships between the expressions of Ang-1/Ang-2/Tie-2 receptor and the clinical parameters or overall survival of such patients. METHODS: We retrospectively analyzed 114 tissue samples from patients with colorectal cancer by using immunohistochemistry (IHC) to examine Ang-1, Ang-2, and Tie-2 expressions and to investigate the relationship between those expressions and clinical parameters or overall survival of such patients. A Western blot analysis was used for Ang-2 expression. RESULTS: IHC staining showed a link between Ang-1 and Tie-2 (P = 0.018), as well as meaningful correlations between Ang-2 and Tie-2 receptor (P = 0.022) and between lymph-node metastasis and Ang-2 (P = 0.025). The stronger the IHC staining for Ang-2 expression was, the shorter the cumulative survival was (P = 0.016). CONCLUSION: A relationship was found to exist between Ang-2 and Tie-2 expressions. The Ang-2 was correlated with lymph-node metastasis, and high expression of Ang-2 was indicative of poor overall survival. These findings suggest that Ang-2 is a useful prognostic marker in the management of patients with colorectal cancer. In addition, we suggest that Ang/Tie-2 signaling plays an important role in the progression of colorectal cancer.
Angiopoietin-1*
;
Angiopoietin-2*
;
Angiopoietins
;
Blotting, Western
;
Colorectal Neoplasms*
;
Humans
;
Immunohistochemistry
;
Neoplasm Metastasis
;
Prognosis
;
Receptor, TIE-2*
;
Retrospective Studies
8.Effects of an Extra-corporeal Life Support System Using a Dual Pulsatile Pump.
Kwang Je BAEK ; Jun Sig KIM ; Kyung SUN ; Ho Sung SON ; Woong KI ; Seung Baik HAN ; Byung Goo MIN
Journal of the Korean Society of Emergency Medicine 2002;13(4):489-496
PURPOSE: The purpose of this study was to observe and compare the changes in the patterns of hemodynamic and blood profiles on the circuit of Extra-corporeal life support system (ECLS) by using a dual pulsatile pump (T-PLS). METHODS: An acute heart failure model using partial pulmonary artery banding was constructed in 12 piglets (20 -25kg). The animals were divided into centrifugal (n=6) and dual pulsatile pump (n=6) group. Each animal was placed on an ECLS system with a membrane oxygenator bypassing the right atrium and the aorta for 2 hours under general anesthesia. The parameters mainly observed were intra-circuit pressure changes, arterial pulsatility (pulse pressure), plasma free hemoglobin, hemodynamic changes, and other blood profiles. The parameters obtained just prior to the bypass were compared with the corresponding parameters obtained two hours after the bypass. RESULTS: Before bypass, the parameters were statistically the same between the groups. Two hours after the bypass, no significant differences were observed between the groups in ABGA, VBGA, AST/ALT, BUN/Cr, and electrolytes; the plasma free hemoglobin was 14.8+/-4.7 g/dl in the dual pulsatile group and 19.1+/-9.1 g/dl in the centrifugal group (p=NS). The pulse pressure was higher in the dual pulsatile pump than in the centrifugal pump group (35+/-8 vs. 11+/-7 mmHg, p=0.0253 mmHg). The highest circuit pressure was generated at the inlet of the membrane oxygenator and was higher in the dual pulsatile group than in the centrifugal group (173+/-12 mmHg vs. 222+/-8 mmHg, p=0.0000). CONCLUSION: The results demonstrate that a dual pulsating mechanism lessens blood cell trauma while providing physiologic pulsatile blood flow. The ECLS system using a dual pulsatile pump (T-PLS) can be useed as an effective and safe driving motor for an ECLS.
Anesthesia, General
;
Animals
;
Aorta
;
Bays
;
Blood Cells
;
Blood Pressure
;
Cardiopulmonary Resuscitation
;
Electrolytes
;
Heart Atria
;
Heart Failure
;
Hemodynamics
;
Life Support Systems*
;
Oxygenators, Membrane
;
Plasma
;
Pulmonary Artery
9.The wormicidal substances of fresh water fishes on Clonorchis sinensis III. Seasonal variation on the wormicidal substances of mucous substances of Carassius carassius.
Jae Ku RHEE ; Byeong Kirl BAEK ; Byung Zun AHN ; Young Jun PARK
The Korean Journal of Parasitology 1980;18(2):179-184
The epidermal mucous substances of C. carassius which were extracted by ether were separated into various spots on the silica gel thin layer chromatography and separated into various fractions in the silica gel column chromatography, using petroleum ether (30 percent) and chloroform(70 percent) as a solvent. The wormicidal effects of the spots and the fractions on the cercaria, the liberating metacercaria and the adult of C. sinensis, were observed by month giving attention to ambient water temperature. Among the four spots of the thin 1ayer chromatography of the ether extracts from C. carassius, the uppermost first spots (Rf. 0.924-0965) had a strong wormicidal effect on the cercaria in May, June, July, August and September, and the cercaria which came in contact with the materials was killed in 29-49 min., but in other months (Rf. 0.612-0.752) it was killed only after 50-115 min. In column chromatography of ether extracts from C. carassius, the first fractions which had a wormicidal effect killed the metacercariae within 38-163 min. in May, June, July, August, and September, but it took about 120-458 min. to kill them in other months, meanwhile the wormicidal time of the fractions on the adults was 445-835 min. in May, June, July, August and September, but was 878-2,130 min. in other months. The Rf. value of the uppermost first spot of the thin layer chromatography of ether extrart from the mucous substance of C. carassius which was reared in the aquarium controlled at 23 C was 0.79, and its first fraction of column chromatography killed the metacercaria and the adult of C. sinensis within 315, and 1,850 min. respectively. As summarized above, the wormicidal materials of the epidermal mucous substances of C. carassius had no relation to ambient water temperature, but the secretion period of this wormicidal materials was the same as the liberating period of the cercariae from Parafossarulus manchouricus.
parasitology-helminth-trematoda
;
Clonorchis sinensis
;
Carassius carassius
;
Parafossarulus manchouricus
;
chromatography
;
mucous substance
10.A Case Report Of Basal Cell Nevus Syndrome.
Dong Mok RYU ; Byung Jun CHOI ; Sang Chull LEE ; Yeo Gab KIM ; Baek Soo LEE
Journal of the Korean Association of Oral and Maxillofacial Surgeons 2002;28(2):136-140
Basal cell nevus syndrome is inherited as an autosomal dominant trait with variable expressivity. This syndrome comprises a number of abnormalities such as multiple nevoid basal cell carcinomas of the skin, skeletal abnormalities as bifid rib and fusion of vertebrae, central nervous system abnormalities as mental retardation, eye abnormalities, and multiple odontogenic kerato cysts. In 1960, Gorlin and Goltz first described the features of this disease as constituting a true syndrome; since then, it has been realized that it is much more complex and encompassing than initially thought. This patient has many symtoms of basal cell nevus syndrome. we has known multiple jaw cysts through panorama and facial computed tomography. He has hyperchromatism on basal cell through skin biopsy. In ophthalmologic consult, he has blindness on right. On his past medical history, amputation was done on his toes for polyductalism. - So we report with literature reviews
Amputation
;
Basal Cell Nevus Syndrome*
;
Biopsy
;
Blindness
;
Carcinoma, Basal Cell
;
Central Nervous System
;
Eye Abnormalities
;
Humans
;
Intellectual Disability
;
Jaw Cysts
;
Odontogenic Cysts
;
Ribs
;
Skin
;
Spine
;
Toes