성견에서 Acelluar dermal matrix가 1면 골내낭 결손부의 치주조직 재생에 미치는 영향

박주언,김병옥,박주철,장현선,Park, Ju-Un,Kim, Byung-Ock,Park, Joo-Cheol,Jang, Hyun-Seon 대한치주과학회 2006 Journal of Periodontal & Implant Science Vol.36 No.1

Although the main purpose of periodontal treatment to regenerate is the complete regeneration of periodontal tissue due to periodontal disease, most of the treatment cannot meet such purpose because healing by long epithelial junction. Therefore, diverse materials of resorbable and non-resorbable have been used to regenerate the periodontal tissue. Due to high risk of exposure and necessity of secondary surgical procedure when using non-resorbable membrane, guided tissue regeneration using the resorbable membrane has gain popularity, recently. However, present resorbable membrane has the disadvantage of not having sufficient time to regenerate date to the difference of resorption rate according to surgical site. Meanwhile, other than the structure stability and facile manipulation, acellular dermal matrix has been reported to be a possible scaffold for cellular proliferation due to rapid revascularization and favorable physical properties for cellular attachment and proliferation. The purpose of this study is to estimate the influence of acellular dermal matrix on periodontal ligament, cementum and alveolar bone when acellular dermal matrix is implanted to 1-wall alveolar bone defect. 4 dogs of 12 to 16 month old irrelevant to sex , which below 15Kg of body weight, has been used in this study. ADM has been used for the material of guided tissue regeneration. The 3rd premolar of the lower jaw was extracted bilaterally and awaited for self-healing. subsequently buccal and lingual flap was elevated to form one wall intrabony defect with the depth and width of 4mm on the distal surface of 2nd premolar and the mesial surface of 4th premolar. After the removal of periodontal ligament by root planing. notch was formed on the basal position. Following the root surface treatment, while the control group had the flap sutured without any treatment on surgically induced intrabony defect. Following the root surface treatment, the flap of intrabony defect was sutured with the ADM inserted while the control group sutured without any insertion. The histologic specimen was observed after 4 and 8 weeks of treatment. The control group was partially regenerated by periodontal ligament, new cementum and new alveolar bone. the level of regeneration is not reached on the previous formed notch. but, experimental group was fully regenerated by functionally oriented periodontal ligament fiber. new cementum and new alveolar bone. In conclusion, we think that ADM seems to be used by scaffold for periodontal ligament cells and the matrix is expected to use on guided tissue regeneration.

위식도역류질환과 관련 없는 비심인성 흉통 환자의 우울 및 불안

박주언,류한욱,이풍렬,유범희,Park, Joo-Eon,Ryu, Han-Wook,Rhee, Poong-Lyul,Yu, Bum-Hee 대한불안의학회 2006 대한불안의학회지 Vol.2 No.1

Objectives : Non-cardiac chest pain (NCCP) can be divided into gastroesophageal reflux disease (GERD) related NCCP and non-GERD related NCCP. Our study was designed to examine the differences in clinical characteristics and psychological mood states between the two clinical syndromes. Methods : After some cardiologic evaluations such as treadmill exercise, coronary angiography, and echocardiography, 27 patients with NCCP were enrolled in this study. They were divided into patients with GERD related NCCP (12 patients) and those with non-GERD related NCCP (15 patients) using the upper gastrointestinal endoscopy and the ambulatory 24 hour esophageal pH monitoring. Clinical characteristics such as typical reflux symptoms and psychological mood states were measured. Patients who showed scores more than 10 on the Beck Depression Inventory (BDI) or Beck Anxiety Inventory (BAI) were defined as depressed or anxious group. Anxiety sensitivity Index (ASI) was also measured in all patients. All parameters were compared between patients with GERD related NCCP and those with non-GERD related NCCP. Results : The two groups showed a difference in typical reflux symptoms. Patients with non-GERD related NCCP had higher scores on the BDI, BAI and ASI than those with GERD related NCCP. Among all NCCP patients, 14 patients (51.9%) were suggested to have possible depression or anxiety disorders. Conclusion : The non-GERD related NCCP was shown to be associated with psychological mood states such as anxiety and depression. Thus, we suggest that routine measurement of psychological mood states should be necessary in the evaluation and treatment of NCCP.

임상증례 구연발표 : ICB 와 MBCP를 이용한 상악동 거상술의 조직학적 고찰

박주언,장현선,정문진,김병옥 대한치주과학회 2005 대한치주과학회 학술대회자료집 Vol.2005 No.2

RCP 시나리오에 따 른 해양교란생물 유령멍게 (Ciona robusta)의 서식지 분포 예측

박주언,홍진솔,김동건,윤태중,신숙 한국환경생물학회 2018 환경생물 : 환경생물학회지 Vol.36 No.4

The active development of the global marine trade industries has been known to increase the inflows of marine invasive species and harmful organisms into the ecosystem, and the marine ecological disturbances. One of these invasive species, Ciona robusta, has now spread to the Korea Strait, the East Sea, and Jeju Island in connection with the climate change but not the Yellow Sea in Korea. Currently, the spread and distribution of C. robusta is increasingly damaging aquaculture and related facilities. Therefore, this study aims to identify the spread of C. robusta and potential habitats and to secure a data for the prevention of effective management measures due to climate change as well as damage the reduction in future through the prediction of spread. We used environmental variables in BioOracle. Also, the potential habitat and distribution of C. robusta was predicted using MaxEnt, a species distribution model. Two different RCP scenarios (4.5 and 8.5) were specified to predict the future distributions of C. robusta. The results showed that the biggest environmental factor affecting the distribution of C. robusta was the salinity as well as the highest distribution and potential habitats existent in the East Sea and around Jeju Island.

증례발표 : Altered passive eruption 으로 인해 gummy smile을 보이는 환자에 있어서 심미적 치관 연장술의 증례보고

박주언,장현선,김병옥 대한치주과학회 2005 대한치주과학회 학술대회자료집 Vol.2005 No.1

해양 교란생물로 인한 굴과 우렁쉥이 양식장의 피해 현황 조사

박주언,이택준,김동현,김필재,김동건,신숙 한국환경생물학회 2017 환경생물 : 환경생물학회지 Vol.35 No.4

The Korean aquaculture industry was generally began in the 1970s and has gradually increased. Now, the number of households is about 7,068 and the scale of an aquaculture farm is about 248,014 ha; the value of all production in the industry is estimated to be about 1602.2 billion won. The aquaculture industry is very valuable and important for future food resources. However, the aquaculture industry was damaged by several marine ecological disturbance causing organisms. The Ascdiella aspersa colonized on the shell of scallop and then scallops were detached from rope. The patterns of damage in the aquacultures were observed in Tongyeong (oyster), Geojedo (oyster), and Gangneung (sea squirt) in June, 2017, as well as in Tongyeong (oyster) in November, 2017 by SCUBA divers. The species Halichondria bowerbanki, Bugula neritina, Mytilus galloprovincialis, Balanus amphitrite, Ascidiella aspersa, Ciona intestinalis, Didemnum sp, Styela plicata in Tongyeong, M. galloprovincialis, A. aspersa, C. intestinalis, D. vexillum, S. plicata in Geojedo, and M. galloprovincialis in Gangneung were all usually found in their farms. The marine ecological disturbance causing organisms gave rise to a reduced number of aquaculture products.

공황장애에서 Paroxetine 치료반응을 예측할 수 있는 생물학적 지표

박주언,유범희 大韓神經精神醫學會 2005 신경정신의학 Vol.44 No.2

Objectives : Previons studies reported altered beta-adrenergic receptor (βAR) responsiveness in panic disorder, but few studies reported to see the effect of pharmacotherapy on βAR function in panic patients. This investigation examined βAR responsiveness in patients with panic disorder before and after pharmacotherapy with paroxetine. Methods : After assessment using the Anxiety Disorder Interview Schedule for DSM-FV, 27 acute panic patients whose illness duration did not exceed 1 year were assigned to 12 weeks of paroxetine treatment. Twenty seven normal control subjects with no previous history of major medical and psychiatric illnesses were matched by age, sex, exercise, and body mass index. The Hamilton rating scaIe for anxiety (HAM-A), Hamilton rating scale for depression (HAM-D), Spielberger state-trait anxiety inventory-State (STAI-S) and Trait (STAI-T), acute panic inventory (API), anxiety sensitivity index (ASI), and Beck depression index (BDI) were performed to assess clinical states in the panic patients before and after treatment. The HAM-A, HAM-D, STAI-S and STAI-T, and BDI were also performed in the normal control subjects. We measured the βAR density (Bmax), affinity (l/Kd), and sensitivity (cyclic AMP ratio of isoproterenol-stimulated cAMP to basal cAMP)in all subjects. Results : Panic patients showed much lower scores of the HAM-A, STAI-S, STAI-T, API, ASI, HAM-D, and BDI after 12 weeks ofparoxetine treatment than those before the treatment. There was no significant difference in the means of Bmax and cAMP ratio between control subjects and panic patients before and after the treatment. However, Pretreatment Kd(R²=0.314, β=-0.876, p=0.001) and Bmax (R²=0.230, β=-0.575, P=0.019) significantly accounted for API scores after the treatment and change of Bmax according to the treatment accounted for the improvement of anxiety sensitivity (R²=0.353, β=0.594, P=0.015). The pretreatment Kd value was significantly higher in the panic patients compared with that of control subjects (78.35≥26.20 vs. 59.15≥29.33, p=0.014), which was significantly reduced after the treatment (79.43≥26.83 vs. 56.38≥28.79, p=0.002). The pretreatment Kd value significantly accounted for the improvement of API scores (R²=0.316, β=0.562, p=0.029) and the decrease in trait anxiety (R²=0.246, β=-0.513, P=0.025). Conclusion : In acute panic patients, only βAR affinity was reduced before the treatment, which was contrary to our ex-pectation. Decreased ,βAR affinity was normalized after paroxetine treatment. Decreased βAR affinity and increased βAR density before the treatment predicted good treatment response in acute panic patients. Thus, βAR affinity and density could be useful biological markers that predict the treatment response of paroxetine in panic disorder.

외상 후 초기중재

박주언,이병철,정영은,채정호,Park, Joo-Eon,Lee, Boung-Chul,Jung, Young-Eun,Chae, Jeong-Ho 대한불안의학회 2009 대한불안의학회지 Vol.5 No.2

In this article, we review the efficacy of early interventions after traumatic incidents and during acute stress disorder (ASD). There are some evidences that psychopharmacological medications such as propronolol, morphine, and hydrocortisone are effective in the prevention of posttraumatic stress disorder (PTSD). Considering the role of selective serotonin reuptake inhibitors in hippocampal neurogenesis and an animal model of PTSD, early administration of selective serotonin reuptake inhibitors is also fairly promising. Other pharmacological treatments including benzodiazepines did not treat ASD nor prevent PTSD. There are good evidences that cognitive behavioral therapy including cognitive therapy and prolonged exposure is a valuable intervention for ASD and the most effective prevention for PTSD. No contolled researches on eye movement desensitization&reprocessing, psychodynamic psychotherapy and hypnotherapy have performed. Recent randomized controlled studies using psychological debriefing did not prove as a useful intervention for the prevention of PTSD until now, although the efficacy of debriefing has been at the centre of controversy.

편두통: 정신과적 문제와 바이오피드백 치료

박주언,유범희 대한두통연구회 2004 두통 Vol.5 No.1

공황장애의 뇌영상 및 신경생물학적 식견

박주언,강은호,이인수,유범희,Park, Joo-Eon,Kang, Eun-Ho,Lee, In-Soo,Yu, Bum-Hee 대한불안의학회 2007 대한불안의학회지 Vol.3 No.2

Panic disorder is a common psychiatric illness that causes considerable morbidity. However, the biological basis of panic disorder remains unclear. In this report, we present and summarize the current literature on functional neuroimaging studies related to the neurobiology of panic disorder. The findings were summarized and divided into six groups : (1) known brain structures related to anxiety, especially panic disorder ; (2) structural results ; (3) functional imaging studies at rest ; (4) functional imaging studies with challenge testing ; (5) neuroreceptor studies ; and (6) changes in the treatment of panic disorder. Based on the findings of these neuroimaging studies, it seems as though panic disorder involves the hippocampal and parahippocampal areas, including the amygdala, as well as some cortical regions, such as the temporal and prefrontal cortices. Panic disorder is known to be associated with an imbalance between the right and left hemispheres of the brain at rest or during panic attacks. During a panic attack, patients with panic disorder are likely to experience an increase in local activity in the cingulate, insula, midbrain, and so on. On the other hand, a widespread reduction in the cortical areas has also been reported in most provocation studies. Thus, panic disorder may be related to the excess activation of the fear networks in response to subtle environmental cues and insufficient inhibition from higher cortical control areas ; however ; further studies are recommended in order to fully understand the neurobiology of panic disorder.