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백서 패혈증 모델에서 HSP70의 과도 발현이 iNOS의 발현에 미치는 효과에 관한 연구
이용근,안융,임대호,백진아,고승오,신효근,Lee, Yong-Keun,Ahn, Yung,Leem, Dae-Ho,Baek, Jin-A,Ko, Seung-O,Shin, Hyo-Keun 대한구강악안면외과학회 2010 대한구강악안면외과학회지 Vol.36 No.5
Introduction: Heat shock protein70 (HSP70) is a highly conserved family of proteins produced after a variety of stresses. Many studies reported that the overexpression of HSP70 can improve the prognosis of the patients with sepsis through a reduction of the nitric oxide concentration. However, these results only revealed the effect of HSP70 and nitric oxide. No studies have examined the relationship between HSP70 and nitric oxide. The aim of this study was to evaluate the effect of the overexpression of HSP70 on the expression of inducible nitric oxide synthase and the nitric oxide concentration. In addition, the mechanism of the relationship of HSP70 and inducible nitric oxide synthase (iNOS) in sepsis was examined. Materials and Methods: The experiments were performed on male sprague-dawley rats. Sepsis was induced by a cecal ligation and puncture (CLP). Glutamine (GLN) or saline was administered 1 hour after the initiation of sepsis. Serum and lung tissues were acquired from the rats 12 hours or 24 hours after the initiation of sepsis. The nitric oxide concentration, the expression of HSP70 in lung, and the gene expression of iNOS in lung were analyzed. The three groups, sham operation, CLP and CLP+GLN, were compared. Results: Compared to the other groups, in CLP+GLN, GLN administered after the initiation of sepsis enhanced the expression of HSP70 in the lung at 12 hours ($47.19{\pm}10.04$ vs. $33.22{\pm}8.28$, P=0.025) and 24 hours ($47.06{\pm}10.60$ vs. $31.90{\pm}4.83$, P=0.004). In CLP+GLN, GLN attenuated the expression of iNOS messenger RNA (mRNA) in the lung at 12 hours ($5,513.73{\pm}1,051.60$ vs. $4,167.17{\pm}951.59$, P=0.025) and 24 hours ($18,740.27{\pm}8,241.20$ vs. $9,437.65{\pm}2,521.07$, P=0.016), and reduced the concentration of nitric oxide in the serum at 12 hours ($0.86{\pm}0.48$ vs. $3.82{\pm}2.53$, P=0.016) and 24 hours ($0.39{\pm}0.25$ vs. $1.85{\pm}1.70$, P=0.025). Conclusion: The overexpression of HSP70 induced by the administration of GLN in sepsis attenuates the expression of the iNOS gene but reduces the nitric oxide concentration.
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이해열,안융,박래연,조상기,고승오,신효근 대한악안면성형재건외과학회 2004 Maxillofacial Plastic Reconstructive Surgery Vol.26 No.5
Dentofacial deformity cases who had undergone orthognathic operation in our depart ment were clinicostastically observed during the past 10 years(1993.1-2002.7.) This is a clinical study on 388 patinets who underwent orthognathic operation at the Dept. of oral and Maxillofacial Surgery, College of Dentistry, Chonbuk National University The ratio of female to male was 1.2:1. The age distribution of most patients was the period of 20 years, the mean age was 21.32 years. The kind of diagnosis of dentofacial deformity patients and the number are as follows; Mn. prognathism 291cases, Mn. retrognathism 35cases, Mn. prognathism + Mx. retrognathism 19cases, Mx. prognathism 16cases, Facial asymmetry 12 cases, Mn. retrognathism + Mx. prognathism 8cases, Bimaxillary protrusion 4cases, Mx. retrognathism 3cases. The ratio of setback amounts between 10 to 20mm was 47.4% and the advancement amounts between 5 to 10mm was 68% in the sagittal split ramus osteotomy The cases of genioplasty between 1 to 5mm was 68cases and between 5 to 10mm was 96cases. In the Lefort I osteotomy, the cases undergone operation composed of impaction only at the ratio of 56% and impaciton with advanced at the ratio of 34%, impacion with setback at the ratio of 10%. The ratio of cases fixed by screw & miniplate was 94%, by wiring was 6%.
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장소정(So-Jeong Jang),이용근(Yong-Geun Lee),안융(Yung Ahn),임대호(Dae-Ho Leem),백진아(Jin-A Baek),신효근(Hyo-Keun Shin) 대한구강악안면외과학회 2006 대한구강악안면외과학회지 Vol.32 No.5
Infections of the oral and maxillofacial region are one of the most common conditions for which a patient presents to a maxillofacial surgeons. Although these infections can arise from a variety of source, dental disease is the most common etiology. So, odontogenic infection are frequently encountered in the practice of oral and maxillofacial surgery. These infections often respond to antimicrobial chemotherapy or surgical intervention, such as extraction of teeth, incision and drainage through clinical features. But, odontogenic infections have the potential to spread via the fascial spaces in the head and neck region, and, they spread to cavernous sinus, deep musculofascial space and other vital structure. We have undertaken clinical studies on infections in the oral and maxillofacial regions by analyzing retrospectively hospitalized patients in the Dept. of Oral and Maxillofacial Surgery, Chonbuk National University Hospital past 5 years from 2000 to 2004. And, the patients’age, sex, medical history, causes of the infection, surgical intervention, and other clinical parameters were reviewed. The obtained results were as follows : 1. The most frequent cause of oral and maxillofacial infection was odontogenic. And in the odontogenic cause, dental caries was the most common cause (47.2%). 2. The most common fascial space involved was the submandibular space (15.7%), followed by the buccal space (14.8%). 3. 60.4% of all patients required surgical drainage of the abscess, endodontic treatment or tooth extraction or periodontal treatment with drainage. 4. The most causative organism isolated from the pus culture were streptococcus viridans (53.9%). 5. Underlying medical problems were found in 136 patients (41.9%), the most common being hypertension (27.9%) and diabetes (14.7%).
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하악 제 3대구치 발거 후 예방적 항생제의 투여에 관한 연구
전희경(Hee-Kyoung Jeon),최주석(Ju-Seok Choi),김평수(Pyung-Soo Kim),안융(Yung Ahn),고승오(Seung-O Ko) 대한구강악안면외과학회 2005 대한구강악안면외과학회지 Vol.31 No.6
We evaluated the need for prophylactic postoperative oral antibiotic medication in extraction of asymptomatic impacted mandibular third molars. All patient didn’t show sign of pain, inflammation, swelling and trismus at the time of extraction. In the experimental group, oral antibiotic medication(Amoxicillin) was carried out for 5 days postoperatively. In the control group, the patients received no antibiotic medication. All groups didn’t use antibiotic irrigation solution. Rule of group composition randomized. The surgical technique was the same in all cases. Parameters that were evaluated were infection, pain, facial swelling, trismus. We could not find any significant difference between the experimental and control groups.(P<0.05) The results of our study show that post operative oral prophylactic antibiotic medication after the extraction of impacted mandibular third molars does not contribute to less infection, pain, facial swelling and increased mouth opening after surgery. Therefore we suggest that prophylactic postoperative oral antibiotic medication is not needed in extraction of asymptomatic impacted mandibular third molars.
DBpia
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