1.Observation of Soft-Rot Wood Degradation Caused by Higher Ascomyceteous fungi.
Mycobiology 2000;28(1):47-50
The capability of higher ascomyceteous fungi to cause typical soft-rot decay for wood under laboratory conditions is reviewed and discussed. Fungi tested were extremely active in the decomposition of timbers. Scanning electron micrographs illustrated typical soft-rot decay pattern of higher wood decay ascomycetes, with the exception of H. trugodes that caused white-rot decay. Most of the fungi tested could be grouped as soft-rot fungi that showed typical soft-rot type II. Hypha confined primarily to the resin canals in softwoods or vessel elements in hardwoods and spread tracheid to tracheid via pits of cell wall to cell wall with mechanical force.
Ascomycota
;
Cell Wall
;
Fungi*
;
Hyphae
;
Wood*
3.Comparisons of 12-Hour and 24-Hour Sustained-Release Theophyllines in the Management of Asthma.
Yang Deok LEE ; Seoung Ju PARK ; Heung Bum LEE ; Yong Chul LEE ; Yang Keun RHEE
Tuberculosis and Respiratory Diseases 2001;50(3):293-299
BACKGROUND: Sustained-release theophylline, which is generally prescribed as a twice-daily equal-dose regimen, is one of the more common asthma treatments. the development of a sustained-release drug delivery technology that enables improved control of the theophylline blood levels represents a significant advancement in both the efficacy and safety of dosing. METHOD: A crossover study was conducted with 25 adult chronic asthmatic patients requiring daily bronchodilator therapy. The study group included thirteen males and twelve females with ages ranging from 19 to 71 years. The overall approach was to place the patients first on the twice-daily preparation(Etheophyl®) for 28 days at 8 AM and 8 PM, and measure the pulmonary function and theophylline level on the 28th day. the patients were subsequently switched to the once-daily preparation(Uniphyl®) in the same daily dose at 8 PM on the 29th day and the same parameters were measured on the 56th day. RESULTS: the mean serum levels of theophylline were 8.18±1.66µg/ml in the Etheophyl®-treated period and 8.00±1.75µg/ml in the Uniphyl®-treated period. In addition, the FEV1 showed 71.40±7.48 percent in the Etheophyl®-treated and 69.18±9.00 percent in the Uniphyl®-treated period. Thus there were no significant differences between the once-daily and twice-daily preparation. CONCLUSION: The results indicated little clinical differences between the two medication. The two drugs are equally effective in controlling asthma over the four weeks of treatment.
Adult
;
Asthma*
;
Cross-Over Studies
;
Female
;
Humans
;
Male
;
Theophylline
4.The Use of Acrylic Splint for Dental Alignment in Complex Facial Injury.
Journal of the Korean Society of Plastic and Reconstructive Surgeons 1999;26(5):910-916
The surgical reconstruction of complex facial injuries have focused on the following; early one-stage repair, exposure of all fracture fragments, precise anatomic rigid fixation, immediate bone grafting, and definite soft tissue management were the main surgical procedures, as in other facial bone injuries. Complex facial bone fractures involving dentition should be managed by the same principles. However, conventional methods can not achieve accurate preinjury occlusion when there are unstable fracture segments, edentulous state, or complex palatal/maxillary and mandibular fractures. Seventeen patients were surgically reconstructed in conjunction with dental impression, model surgery, and fabrication of dental splints to establish better occlusion. Among the facial fractures that had the occlusal problem, maxillary/palatal fractures and complex mandibular fractures, were the major indications for fabrication of acrylic splints. During operation, fracture segments were reduced and repositioned according to dental wear facets of the prefabricated occlusal splint and then temporary intermaxillary fixations were performed. This allowed us to accomplish precise anatomical reduction and rigid intrenal fixations. The postoperative occlusions were acceptible and no complication occurred as direct effects of dental splint. We suggest that fabrication of an acrylic occlusal splint is necessary for the management of complex facial injuries involving dentition.
Bone Transplantation
;
Dentition
;
Facial Bones
;
Facial Injuries*
;
Humans
;
Mandibular Fractures
;
Occlusal Splints
;
Splints*
;
Tooth Wear
6.An Epidemiological Study of Contact Dermatitis.
Korean Journal of Dermatology 1983;21(2):165-170
Numerous studies on epidemiological aspects of contact dermatitis have been published in recent years since the introduction of a standardized method of patch test. We have performed the patch test on patients with contact dermatitis and on patients with other forms of dermatitis, A total of 153 patients were tested in this study between January 198l and August 1982. We have routinely attached 29 Hollister's standard batteries and 0. l% Tego, which is a commonly used antiseptic in our hospital, to the patients back. The tapes used were Leukotape and Finn chamber. Forty-eight hours after the tape had been attached, the patches were removed and read. The second reading was taken 24 or 48 hours after the patch had been removed. According to the results of this study, the most common allergens were cinnamic alcohol (11. 1%), ammoniated mercuric chloride (10. 5%), nickel sulfate (9. 2%), hydroxycitronellal(6. 5%), paraben mix(5. 9%), mercaptobenzothiazole(5. 9%) and thimerosal(5. 9%). In conclusion, cosmetics, metals, medicaments and rubber compounds were found to be the most common etiologic agents of contact dermatitis in this studyBackground and possible explanation of these rusults were discussed and a comparison was made between this report and others.
Allergens
;
Dermatitis
;
Dermatitis, Contact*
;
Epidemiologic Studies*
;
Humans
;
Mercuric Chloride
;
Metals
;
Nickel
;
Patch Tests
;
Rubber
7.Microscopic Findings of Cultured Human Melanocytes from a Vitiligo Subject.
Korean Journal of Dermatology 1997;35(3):571-574
Vitiligo is an acquired systemic disease of the skin characterized by circumscribed patches of complete pigment loss due to destruction of melanocytes. A 28-year old male patient presented with generalized depigmented patchs. We performed microscopic studies of cultured melanocytes from this patient and compared them with those of normal neonatal foreskin. Phase contrast microscopic findings revealed no difference between the two groups of melanocytes, but transmission electron microscopic findings showed dilated circular rough endoplasmic reticulum in cultured melanocytes from our vitiligo patient. We could observe the innate cellular structural aberration of melanocytes from the vitiligo subject.
Adult
;
Endoplasmic Reticulum, Rough
;
Foreskin
;
Humans*
;
Male
;
Melanocytes*
;
Skin
;
Vitiligo*
8.Basic Understanding of High-Resolution CT.
Journal of the Korean Medical Association 2000;43(11):1086-1102
No abstract available.
9.3 cases report of the Poland's syndrome.
Myung Ju LEE ; Jeong Yeol YANG
Journal of the Korean Society of Plastic and Reconstructive Surgeons 1993;20(5):1169-1179
No abstract available.