1.Blood and urine cadmium levels in non-exposed Korean to cadmium.
You Yong YEON ; Kyu Dong AHN ; Byung Kook LEE
Korean Journal of Occupational and Environmental Medicine 1992;4(1):70-80
No abstract available.
Cadmium*
2.Effects of Several Biodegradable Controlled-Release Local Delivery Drugs on the Treatment of Periodontitis.
Dae Seung YANG ; Kyung Tae YOU ; Sung Hee PI ; Myung Yeon LEE ; Yong Ouk YOU ; Hyung Keun YOU ; Hyung Shik SHIN
The Journal of the Korean Academy of Periodontology 1999;29(4):725-735
The present study was performed to evaluate the clinical effects following local application of 30% minocycline strip(polycaprolactone), 2% minocycline gel(hydro-carbon gel) and 12% minocycline strip(polylactide, Minodent) to augment scaling and root planing in patients with chronic adult periodontitis. Forty teeth with periodontitis were enrolled in the study anddistributed into 4 groups including control group. All patients performed standardized oral hygiene instructions and mechanical debridement at the beginning of the study and then each local delivery drugs were inserted into periodontal pocket in each groups. Examinations regarding plaque index(PI), papillary bleeding index (PBI), probing pocket depth (PPD) were carried out at 0, 2, 4 weeks. All experimental groups showed statistically significant differences between baseline and 2 and 4 weeks in every clinical indices. Especially, 30%minocycline strip and Minodent group showed a significant improvement in PBI at 2 weeks and in PPD at 2 and 4 weeks. In conclusion, highly bio-resorbable Minodent delivered subgingivally as an adjunct to scaling and root planing induces better clinical effects for periodontal health than 2% minocycline gel and control group.
Adult
;
Male
;
Female
;
Humans
3.Nontuberculous Mycobacterial Infection after Removal of the Exposed Hydroxyapatite.
Yong Yeon SONG ; In Cheon YOU ; Min AHN
Korean Journal of Ophthalmology 2017;31(4):366-367
No abstract available.
Durapatite*
4.A Case of Rothia mucilaginosa Keratitis in South Korea.
Yong Yeon SONG ; Min AHN ; Nam Chun CHO ; In Cheon YOU
Korean Journal of Ophthalmology 2017;31(5):460-461
No abstract available.
Keratitis*
;
Korea*
5.Direction of the J-Tip of the Guidewire to Decrease the Malposition Rate of an Internal Jugular Vein Catheter.
Byeong Jun AHN ; Sung Uk CHO ; Won Joon JEONG ; Yeon Ho YOU ; Seung RYU ; Jin Woong LEE ; In Sool YOO ; Yong Chul CHO
Korean Journal of Critical Care Medicine 2015;30(4):280-285
BACKGROUND: We hypothesized that the direction of the J-tip of the guidewire during insertion into the internal jugular vein (IJV) might determine its ultimate location. METHODS: In this study, 300 patients between the ages of 18 and 99 years who required central venous catheterization via IJV in the emergency department enrolled for randomization. IVJ catheterization was successful in 285 of 300 patients. An independent operator randomly prefixed the direction of the J-tip of the guidewire to one of three directions. Based on the direction of the J-tip, patients were allocated into three groups: the J-tip medial-directed group (Group A), the lateral-directed group (Group B), or the downward-directed group (Group C). Postoperative chest radiography was performed on all patients in order to visualize the location of the catheter tip. A catheter is considered malpositioned if it is not located in the superior vena cava or right atrium. RESULTS: Of the total malpositioned catheter tips (8 of 285; 2.8%), the majority (5 of 8; 62.5%) entered the contralateral subclavian vein, 2 (25.0%) were complicated by looping, and 1 (12.5%) entered the ipsilateral subclavian vein. According to the direction of the J-tip of the guidewire, the incidence of malpositioning of the catheter tip was 4 of 92 in Group A (4.3%), 4 of 96 in Group B (4.2%), and there were no malpositions in Group C. There were no significant differences among the three groups (p = 0.114). CONCLUSIONS: The direction of the J-tip of the guidewire had no statistically significant effect on incidence of malpositioned tips.
Catheterization
;
Catheterization, Central Venous
;
Catheters*
;
Central Venous Catheters
;
Emergency Service, Hospital
;
Heart Atria
;
Humans
;
Incidence
;
Jugular Veins*
;
Radiography
;
Random Allocation
;
Subclavian Vein
;
Thorax
;
Vena Cava, Superior
6.A Case of Solitary Superficial Angiomyxoma.
You Jeong KIM ; Mi Yeon KIM ; Young Min PARK ; Hyung Ok KIM ; Kye Yong SONG
Korean Journal of Dermatology 2006;44(3):362-364
Solitary superficial angiomyxoma gap (SSA), sometimes referred to as solitary cutaneous myxoma, is a relatively uncommon benign myxoid tumor of soft tissue. It is characterized clinically by slowly-growing, asymptomatic nodules on the head, neck, and trunk of adults. It is locally recurrent, but there have been no reports of metastatic spread. Histologically, SSA consists of the conglomerate of moderate-to-sparse cellular angiomyxoid nodules with scattered, small to medium-sized blood vessels in the dermis, frequently involving subcutaneous fat. We herein report a case of SSA which developed in the genital area of an 80-year-old woman.
Adult
;
Aged, 80 and over
;
Blood Vessels
;
Dermis
;
Female
;
Head
;
Humans
;
Myxoma*
;
Neck
;
Subcutaneous Fat
7.A Case of Solitary Superficial Angiomyxoma.
You Jeong KIM ; Mi Yeon KIM ; Young Min PARK ; Hyung Ok KIM ; Kye Yong SONG
Korean Journal of Dermatology 2006;44(3):362-364
Solitary superficial angiomyxoma gap (SSA), sometimes referred to as solitary cutaneous myxoma, is a relatively uncommon benign myxoid tumor of soft tissue. It is characterized clinically by slowly-growing, asymptomatic nodules on the head, neck, and trunk of adults. It is locally recurrent, but there have been no reports of metastatic spread. Histologically, SSA consists of the conglomerate of moderate-to-sparse cellular angiomyxoid nodules with scattered, small to medium-sized blood vessels in the dermis, frequently involving subcutaneous fat. We herein report a case of SSA which developed in the genital area of an 80-year-old woman.
Adult
;
Aged, 80 and over
;
Blood Vessels
;
Dermis
;
Female
;
Head
;
Humans
;
Myxoma*
;
Neck
;
Subcutaneous Fat
8.Acute Organophosphorus Pesticide Poisoning.
Mi Jin LEE ; Joon Seok PARK ; Tai Yong HONG ; Sung Soo PARK ; Yeon Ho YOU
Journal of The Korean Society of Clinical Toxicology 2008;6(2):83-90
Organophosphate (OP) pesticides are the most common source of human toxicity globally, causing high mortality and morbidity despite the availability of atropine as a specific antidote and oximes to reactivate acetylcholinesterase. The primary toxicity mechanism is inhibition of acetylcholinesterase (AchE), resulting in accumulation of the neurotransmitter, acetylcholine, and abnormal stimulation of acetylcholine receptors. Thus, the symptoms (muscarinic, nicotinic, and central nervous system) result from cholinergic overactivity because of AchE inhibition. OP can also cause rhabdomyolysis, pancreatitis, parotitis, and hepatitis. OP therapy includes decontamination, supportive therapy, and the use of specific antidotes such as atropine and oximes. However, there has been a paucity of controlled trials in humans. Here we evaluated the literature for advances in therapeutic strategies for acute OP poisoning over the last 10 years.
Acetylcholine
;
Acetylcholinesterase
;
Antidotes
;
Atropine
;
Decontamination
;
Hepatitis
;
Humans
;
Neurotransmitter Agents
;
Oximes
;
Pancreatitis
;
Parotitis
;
Pesticides
;
Receptors, Cholinergic
;
Rhabdomyolysis
10.Antibacterial and remineralization effects of orthodontic bonding agents containing bioactive glass.
You Min KIM ; Dong Hyun KIM ; Chang Weon SONG ; Seog Young YOON ; Se Yeon KIM ; Hee Sam NA ; Jin CHUNG ; Yong Il KIM ; Yong Hoon KWON
The Korean Journal of Orthodontics 2018;48(3):163-171
OBJECTIVE: The aim of this study was to evaluate the mechanical and biological properties of orthodontic bonding agents containing silver- or zinc-doped bioactive glass (BAG) and determine the antibacterial and remineralization effects of these agents. METHODS: BAG was synthesized using the alkali-mediated solgel method. Orthodontic bonding agents containing BAG were prepared by mixing BAG with flowable resin. Transbond™ XT (TXT) and Charmfil™ Flow (CF) were used as controls. Ion release, cytotoxicity, antibacterial properties, the shear bond strength, and the adhesive remnant index were evaluated. To assess the remineralization properties of BAG, micro-computed tomography was performed after pH cycling. RESULTS: The BAG-containing bonding agents showed no noticeable cytotoxicity and suppressed bacterial growth. When these bonding agents were used, demineralization after pH cycling began approximately 200 to 300 µm away from the bracket. On the other hand, when CF and TXT were used, all surfaces that were not covered by the adhesive were demineralized after pH cycling. CONCLUSIONS: Our findings suggest that orthodontic bonding agents containing silver- or zinc-doped BAG have stronger antibacterial and remineralization effects compared with conventional orthodontic adhesives; thus, they are suitable for use in orthodontic practice.
Adhesives
;
Dental Cements
;
Glass*
;
Hand
;
Hydrogen-Ion Concentration
;
Methods