1.EFFECT OF BLOCKING OF OXYGEN FREE RADICALS ON VENOUS ISLAND FLAP.
In Joong KIM ; Yoon Jae KANG ; Poong LIM
Journal of the Korean Society of Plastic and Reconstructive Surgeons 1997;24(3):449-458
Venous island flap has many advantages over other flaps, such as random pattern flap, island flap or free flap. It can cover the defect with wide arc of rotation and does not require vessel anastomosis and arterial pedicle, hence more sites are available for donor. The procedure is a time saving and simple procedure and can be performed even by two operating members. But it is not frequently used because of the poor survival of the flap. In this study, we attempted to allow whether pharmacological or delay procedure can enhance the survival of the venous island flap and the mechanism of the delay flap survival. We devised a model of venous island flap whose pedicle was a branch of central vein on the auricle of Newzeland white rabbit. SOD, allopurinol and SOD and allopurinol were given as pharmacological treatment and delay procedure was carried out to enhance the survival of the flap. For the study of survival mechanism of the delay flap, SOD levels of the delay and non-delay flap were observed by SOD 525 method. The results were as follows: 1. Allopurinol, SOD and, SOD and allopurinol improved the survival of the flap significantly. 2. Delay procedure improved the survival of the flap significantly. 3. The level of SOD in delay flap was higher than that of non-delay flap regardless of the site within the flap or time passage. In conclusion, it is inferred that the administration of allopurinol and SOD and surgical delay can enhance the survival of the venous island flap. In delay venous island flap, increased level of SOD within the flap seem to contribute to the increased survival of the flap.
Allopurinol
;
Free Radicals*
;
Free Tissue Flaps
;
Humans
;
Oxygen*
;
Tissue Donors
;
Veins
2.A Case of Lichen Nitidus.
Korean Journal of Dermatology 1980;18(5):479-483
Lichen nitidus is a comparatively rare, asymptomatic, chronic disease displaying small, sharpIy defined, fresh colored papules usually localized on the penis, arms and the abdomen. Waisman found immunoglobulin at the dermo-epidermaI junction in lichen planus, but not in lichen nitidus. This settled the argument whether lichen nitidus is a variant of lichen planus. A 11 year old healthy girI was brought to the clinic because of many flesh colored discrete papules on the cubital fossae and the anterior chest. The papules are skin colored. pinhead sized, round, and flat-topped The lesions appeared first at the age of 8 on the antecubital folds and in the following years, increased in number and extended slowly to the upper arms and the anteior chest.
Abdomen
;
Arm
;
Child
;
Chronic Disease
;
Humans
;
Immunoglobulins
;
Lichen Nitidus*
;
Lichen Planus
;
Lichens*
;
Male
;
Penis
;
Skin
;
Thorax
3.Histology of Secondary Syphilid.
Korean Journal of Dermatology 1980;18(5):417-424
Fundamental pathologic cianges of secondary syphilid are said to be swelling and proliferation of endothelials and a predominantly parivascular infiltrates composed chiefly of lymphoid cells and plasma cells. But recentIy this theory has heen challenged. We present bistologic observation made on 10 patients who agreed to go through a biopsy, during 2 years period. from 1975 to l977. Male to female ratio was 9: 1 The age of patient ranged from 20 to 33, with a mean of 26. 8. The duration of lesion before the visit to the department ranged frorn 6 weeks to 20 weeks, with a mean of 11.9. The lesions in 2 were classified as macule, 3 as papule (1 as moist papule), and 5 as papulo-squamous lesions. The VDRL titer was higher in papular type. Dark fieId examination was performed on all patient and 6 showed positive result. The edidermal changes consist of hyperkeratosis (in 6 cases), parakeratosis (in 5), acanthosis (in 6), elongation of rete ridges (in 8) and exocytosis (in 3). The dermis showed mild to severe perivascular infiltration consist chiefly of lymphoid cells and histiocytic cells (in 10), plama cells (in 7), eosinophils (in 4), neutrophils (in 2), chromatophores (in 4), extra vasation of RBC (in 5), and dilated bload vessels endothelial swellings (in 8). Of particular interest was the finding that plasma cell infiltration is more pronounced at the lower portion of dermal infiltrate and in 3 cases plasma cell infiltration was totally absent. Vascular changes were seen in 8 cases.
Biopsy
;
Chromatophores
;
Dermis
;
Eosinophils
;
Exocytosis
;
Female
;
Humans
;
Lymphocytes
;
Male
;
Neutrophils
;
Parakeratosis
;
Plasma Cells
;
Syphilis, Cutaneous*
4.Clinicopathological Comparison of Papulonecrotic Tuberculid and Pityriasis Lichenoides et Varioliformis Acuta.
Dae Joong YOON ; Chull Wan IHM
Korean Journal of Dermatology 1982;20(5):667-675
Papulonecrotic tuberculid (PNT) and Pityriasis lichenoides et varioliformis acuta (PLEVA) have been in controversy in their pathogeneses and entity itselves. Authors reviewed litera,tures of the two dermatoses with observation of nine casea of PNT from 1979 to 1981 and evaluated whether PNT could be also classified as PLEVA. The results were a,s follows: 1. By the review of literatures PNT and PLEVA showed great similarities in their clinical aspects including shape of cutaneous lesions, course, favorite age and subjecive symptoms. Histopathological overlappings were also found. 2. Of the nine cases of PNT authors observed, seven cases were histopathologically PLEVA and four cases could be thought PLEVA also clinically. But way six cases were treated by anti-tuberculous drugs. 3. The incidence of other tuberculous signs and results of tuberculin skin tests were all significant in the nine cases above. With the above observations it seems that PNT is one of the causes of PLEVA and thus could be a kind of PLEVA.
Incidence
;
Pityriasis Lichenoides*
;
Pityriasis*
;
Skin Diseases
;
Skin Tests
;
Tuberculin
;
Tuberculosis, Cutaneous*
5.A Case of Proliferation Trichilemmal Cyst.
Dae Joong YOON ; Chull Wan IHM
Korean Journal of Dermatology 1982;20(3):419-423
Proliferating trichilemmal cyst is a fascinating follicular neoplasm. Prior to its recognition, the tumor was misinterpreted as squamous cell carcinoma both clinically and histologically. The incidence of the lesion is rare and we can not find this case in the Korean literature. Authors have found a large, lobulated, hemorrhagic progressively growing tumor on the scalp of a 66 year-old woman. By its appearance it was hard to think the lesion was a benign tumor. Histological examination confirmed the diagnosis of proliferating trichilemmal cyst. Local excision and skin graft brought about complete healing of the lesion.
Aged
;
Carcinoma, Squamous Cell
;
Diagnosis
;
Female
;
Humans
;
Incidence
;
Scalp
;
Skin
;
Transplants
6.A study on the positive rate of rubella antibody and the sero-conversion rate after rubella vaccination.
Young Jeon CHOI ; Hung Bae PARK ; Young Jeon SHIN ; Bae Joong YOON ; Joong Surk HAHN
Korean Journal of Epidemiology 1993;15(2):173-184
No abstract available.
Rubella*
;
Vaccination*
7.Detection of Puumala and Hantaan Viruses among Bats in Korea by Nested RT-PCR.
Yun Tai LEE ; Bo Kyoung YUN ; Jeong Joong YOON
Journal of the Korean Society of Virology 1998;28(2):147-155
Hantavirus is a genus of the Bunyaviridae family consisting following serotype groups: Hantaan, Seoul, Puumala, Prospect Hill, Thailand, Belgrade, Thotta palayam, Sin Hombre. Most of Hantavirus group have been associated with many clinically similar disease known collectively as hemorrhagic fever with renal syndrome (HFRS). Hantaan virus is the prototype of the genus hantavirus, originally isolated from Apodemus agrarius. Bat was found as a natural host for Hantaan virus in Lee's lab for the first time. Then, Hantaan-like virus was isolated Hantaan-like virus from bat. To identify hantaviruses that are present in Korea among bats, bats were collected from Jeong-Sun, Won-Joo, Chung-Ju and Hwa-Cheon area, RNA was isolated from lung and serum. RT-PCR was performed with a universal primer from M segment. Nested RT-PCR was carried out to differentiate Hantaan, Seoul and Puumala virus using serotype specific primers. As we expected, Hantaan viruses were detected in bats and Seoul virus was not detected. Interestingly, Puumala viruses were also detected in bats from won-Ju, but not in other areas. Puumala virus is originally isolated from Clethrinomys glareolus, and cause light HFRS. Recently, Paradoxomis webbiana, a wild bird turn out to be a reservoir for Puumala virus in Korea. These data indicate that bat is a new natural reservoir of Puumala virus.
Animals
;
Birds
;
Bunyaviridae
;
Chiroptera*
;
Chungcheongbuk-do
;
Gangwon-do
;
Hantaan virus*
;
Hantavirus
;
Hemorrhagic Fever with Renal Syndrome
;
Humans
;
Korea*
;
Lung
;
Murinae
;
Puumala virus
;
RNA
;
Seoul
;
Seoul virus
;
Thailand
8.Treatment of Gonorrhoea.
Joong Hwan KIM ; Hong Yoon YANG ; Young Tae KIM
Annals of Dermatology 1989;1(2):69-72
Because of increasing resistance of circulating N. gonorrhoeae and frequent failures in the treatment of gonorrhoea, intensive work on gonorrhoea has become of paramount importance. During January 1980-April 1984, at the Choong-Ku VD Clinic in Seoul, 3,340 male patients with uncomplicated gonococcal urethritis were treated with various treatment regimens. Diagnosis of gonorrhoea and declaration of a treatment failure were made on the basis of positive urethral culture. In 1984, the prevalence of Penicillinase Producing N. gonorrhoeae (PPNG) was about 30%, The pretreatment minimun inhibitory concentration of various antibiotics were quite high. Even for non-PPNG urethritis standard penicillin regimens gave unsatisfactory results. For PPNG urethritis, only spectinomycin, cefoperazone and cefotaxim-probenecid regimens gave satisfactory results. No spectmomycin resistant strain of N. gonorrhoeae has been found since 1982 at the Choong-Ku VD Clinic. As an agent of single drug therapy, spectinomycin seems to be one of the most cost effective drugs in the treatment of uncomplicated gonorrhoea in men.
Anti-Bacterial Agents
;
Cefoperazone
;
Diagnosis
;
Drug Therapy
;
Humans
;
Male
;
Penicillinase
;
Penicillins
;
Prevalence
;
Seoul
;
Spectinomycin
;
Treatment Failure
;
Urethritis
9.Partial Sequence Analysis of Puumala Virus M Segment from Bats in Korea.
Bok Young YUN ; Jeong Joong YOON ; Yun Tae LEE
Journal of the Korean Society of Virology 1999;29(1):23-31
Hantavirus is a genus of the Bunyaviridae family causing two serious diseases, hemorrhagic fever with renal syndrome (HFRS) and hantavirus pulmonary syndrome (HPS). Puumala virus is a member of hantavirus originally found in Europe, and its natural reservoir is Clethrionomys glareolus. It is also associated with the hurnan disease nephropathia epidemica, a milder form of HFRS. To identify the hantaviruses in bats, bats were collected from Jeong-Sun, Won-Joo, Chung-Ju and Hwa-Cheon area in Korea, and nested RT-PCR was performed with serotype specific primer from M segment. Interestingly, Puumala virus was detected in bats (Rhinolophus ferrum-equinum) only from Won-Joo. The 327 bp nested RT-PCR product, was sequenced. The sequence database search indicates that the sequence is homologous to the published sequence of Puumala viruses. The sequence similarities were ranged from 71% to 97%. The highest sequence similarity was 97% with Puumala virus Vranicam strain, and the lowest was 71% with Puumala virus K27 isolate. Puumala virus Vranicam strain was isolated from a bank vole (Clethrionomys glareolus) in Bosnia-Hercegovina. Puumala virus K27 was isolated from human in Russia. This analysis confirms that bats (Rhinolophus ferrum-equinum) in Korea are natural reservoir of Puumala virus.
Arvicolinae
;
Base Sequence
;
Bunyaviridae
;
Chiroptera*
;
Chungcheongbuk-do
;
Europe
;
Hantavirus
;
Hantavirus Pulmonary Syndrome
;
Hemorrhagic Fever with Renal Syndrome
;
Humans
;
Korea*
;
Puumala virus*
;
Russia
;
Sequence Analysis*
10.It's clinical analysis and autoantibodies.
Yoo Jung HWANG ; Hong Yoon YANG ; Joong Hwan KIM
Korean Journal of Dermatology 1993;31(5):657-663
BACKGROUND: Vitiligo is riot quite a rare diseasep; it has about 1% prevalence. The cause of vitiligo is not clear, however, in recent studies an autoimmune origin is freqluei itily mentioned. OBJECT: We tried to an lyze some clinical features of vitiligo and relate them with the presence of autoantibodies. MEHTODS: A total of 381 vitiligo patients was included for the analysis of clinical features. A laboratory study included rhumatoid factor, antinuclear antibocoly, antithyroglobulin antibody and antimicrosome antibody. Some 62 patients were examined for opl thmologic changes. RESULTS: One hundred and one(26.5%) of 381 patients exam ned showed at least one of the autoantibodies tested. Twenty nine pateints showed 2 different aitintibodies. The age at aonset of vitiligo in the autoantibody positive group was 6.6 years later than that of the autoantibody negative group. Autoimmune and/or endocrine diseases were more frequinty found among aut.oantibody positive patients. These diseas s included hyperthyroidism, diabetes me litus and alopecia areata. One patient revealed retinal hypoigmentation and showed no autoantibcidics. CONCLUSION: About 9% of vitiligo patients who were autoantiocyte positive had clinical evidence of diseases associated with the autoantibody. However, it is prudent. to xpect that more patients with t.he autoantibody may develop later systemic autoimmune diseases or endocrinopathies. A long term follow-up of these patients seem:, to be very important.
Alopecia Areata
;
Antibodies, Antinuclear
;
Autoantibodies*
;
Autoimmune Diseases
;
Endocrine System Diseases
;
Follow-Up Studies
;
Humans
;
Hyperthyroidism
;
Prevalence
;
Retinaldehyde
;
Riots
;
Vitiligo