BACKGROUND: Direct wet mount examination of vaginal secretion, widely applied for the diagnosis of Trichomonas vaginalis infection in woman patients, is rapid and economical. However, the sensitivity of this technique is not so high. In this study enzyme-linked immunosorbent assay(ELISA) was employed for the detection of serum anti-T. vaginalis IgG antibodies from vaginal trichomoniasis patients. METHODS: Eighty sera from trichomonoasis patients who visited a Dr. Yoon Kyong's Obstetric & Gynecologic Clinic in Songnam and 30 non-infected healthy men were tested for detection of anti-T. vaginalis IgG antibody. Soluble lysate and excretory-secretory antigen prepared by mixing of six isolates of T. vaginalis, and lysate from one isolate(KT4) were used as antigen for ELISA. RESULTS: The sensitivity of ELISA using lysate of six isolates was 95.0%, and the sensitivity of the lysate from KT4 and mixed excretory-secretory antigen from 6 isolates were 86.4% and 76.3%, respectively. Specificities of ELISA by three 93.3%, 96.3% and 92.0%, respectively. CONCLUSION: It is suggested that ELISA using mixed lysate of T. vaginalis six isolates could be useful tools for the diagnosis of trichomoniasis.
Antibodies ; Diagnosis ; Enzyme-Linked Immunosorbent Assay ; Female ; Gyeonggi-do ; Humans ; Immunoglobulin G* ; Male ; Trichomonas vaginalis ; Trichomonas*

A 23-year-old medical student showed a positive reaction on a skin test for Paragonimus westermani, and two Tarsonemus floricolus mites were subsequently found by sputum examination and identified morphologically. Our report is the first human case of Tarsonemus floricolus in Korea.
Adult ; Animals ; Female ; Humans ; Korea ; Male ; Mite Infestations/*parasitology ; Pyroglyphidae/anatomy & histology/*growth & development ; Sputum/*parasitology

Earlier work suggested that Ginseng saponin had an effect on osteoblast and other cells, but there has been no report on saponin effects on chondrocyte. The purpose of this study was to investigate the effect of saponin on cultured human chondrocyte. The chondrocyte was isolated from human articular cartilage of knee joint during notchplasty of ACL reconstructive procedure using collagenase, and cultured in standard medium and serum free deficient medium, with addition of saponin(0(control), 10, 20, 50 microgram/ml concentration). DNA, RNA synthesis of chondrocyte was estimated on 36 hours and 5 days of culture by measuring of thymidine and uridine uptake. Human collagen type I and II synthesis was estimated by reverse transcriptation-polymerase chain reaction on 36 hours of culture. Low dose saponin was found to enhance DNA, RNA, and collagen synthesis of chondrocytes which were cultured with a deficient medium in comparison to the controls. It promoted cell proliferation of the osteoblasts cultured with a deficient medium in comparison to the controls. But, high dose saponin was found to diminish the synthesis of DNA, RNA and collagen. In summary, the results showed that the saponin increased proliferation and differentiation of the chondrocyte cultured in deficient medium. Therefore saponin seemed to act as a physiologic stimulant on human chondrocyte. But further study should be done.
Cartilage, Articular ; Cell Proliferation ; Chondrocytes* ; Collagen ; Collagen Type I ; Collagenases ; DNA ; Humans* ; Knee Joint ; Osteoblasts ; Panax* ; RNA ; Saponins* ; Thymidine ; Uridine

No abstract available.
Congenital Abnormalities* ; Head*

Toxoplasma gondii is an obligate intracellular protozoan parasite, which invades a wide range of hosts including humans. The exact mechanisms involved in its invasion are not fully understood. This study focused on the roles of Ca2+ in host cell invasion and in T. gondii replication. We examined the invasion and replication of T. gondii pretreated with several calcium modulators, the conoid extrusion of tachyzoites. Calmodulin localization in T. gondii were observed using the immunogold method, and Ca2+ levels in tachyzoites by confocal microscopy. In light microscopic observation, tachyzoites co-treated with A23187 and EGTA showed that host cell invasion and intracellular replication were decreased. The invasion of tachyzoites was slightly inhibited by the Ca2+ channel blockers, bepridil and verapamil, and by the calmodulin antagonist, calmidazolium. We observed that calcium saline containing A23187 induced the extrusion of tachyzoite conoid. By immunoelectron microscopy, gold particles bound to anti-calmodulin or anti-actin mAb, were found to be localized on the anterior portion of tachyzoites. Remarkably reduced intracellular Ca2+ was observed in tachyzoites treated with BAPTA/AM by confocal microscopy. These results suggest that host cell invasion and the intracellular replication of T. gondii tachyzoites are inhibited by the calcium ionophore, A23187, and by the extracellular calcium chelator, EGTA.
Animals ; Calcium/*physiology ; Calcium Channel Blockers/pharmacology ; Calmodulin/antagonists & inhibitors ; Chelating Agents/pharmacology ; Hela Cells ; Host-Parasite Relations ; Humans ; Ionophores/pharmacology ; Research Support, Non-U.S. Gov't ; Toxoplasma/drug effects/pathogenicity/*physiology

Vaginal trichomoniasis, caused by Trichomonas vaginalis, is the most common sexually transmitted disease. More than 170 million people worldwide are annually infected by this protozoan. In the Republic of Korea, 10.4% of women complaining of vaginal symptoms and signs were found to be infected with T. vaginalis. However, despite its high prevalence, the pathogenesis of T. vaginalis infection has not been clearly characterized although neutrophil infiltration is considered to be primarily responsible for the cytologic changes associated with this infection. We hypothesized that trichomonads in the vagina sometime after an acute infection secrete proteins like excretorysecretory product that have a chemotactic effect on neutrophils, and that these neutrophils are further stimulated by T. vaginalis to produce chemokines like IL-8 and GRO-alpha, which further promote neutrophil recruitment and chemotaxis. Thus, neutrophil accumulation is believed to maintain or aggravate inflammation. However, enhanced neutrophil apoptosis induced by live T. vaginalis could contribute to resolution of inflammation. Macrophages may constitute an important component of host defense against T. vaginalis infection. For example, mouse macrophages alone and those activated by lymphokines or nitric oxide are known to be involved in the extracellular killing of T. vaginalis. In the host, T. vaginalis uses a capping phenomenon to cleave host immunoglobulins with proteinases and thus escape from host immune responses. Recently, we developed a highly sensitive and specific diagnostic polymerase chain reaction (PCR) technique using primers based on a repetitive sequence cloned from T. vaginalis (TV-E650), and found that the method enables the detection of T. vaginalis at concentrations as low as 1 cell per PCR mixture.
Trichomonas vaginalis/cytology/*isolation & purification/pathogenicity ; Trichomonas Vaginitis/drug therapy/*epidemiology/parasitology ; Korea/epidemiology ; Humans ; Female ; Animals

Most proximal humeral fractures respond satisfactorily to simple conservative treatment, but operative treatment is recommended in cases where poor results are anticipated by prolonged immobilization, or because of severe displacement and comminution. We used a minimal internal fixation and tension band technique in severely displaced and comminuted cases to achieve firm fixation and avoid subacromial impingement. Passive range of motion of the involved shoulder began within the first postoperative day and active range of motion exercise was encouraged as soon as possible within the first postoperative week. Between February 1996 and November 1997, we operated using this technique on 15 patients ranging in age from 16 to 71 years (average 52). Follow-up averaged 13 months. During the follow-up period, all patients except one patient, had a active full range of motion on the affected limb. According to the evaluation on the 10 patients who had follow- up periods over 12 months by Hawkins rating scale of shoulder function, 6 patients had achieved a good result and 4 patients had achieved a fair result at the last follow up. In conclusion, tension band technique with minimal internal fixation could afford sufficient fracture stability to allow early, aggressive rehabilitation. As a method of internal fixation on a proximal humerus fracture, this technique may have particular advantages in elderly osteoporotic patients.
Aged ; Extremities ; Follow-Up Studies ; Humans ; Humerus ; Immobilization ; Range of Motion, Articular ; Rehabilitation ; Shoulder ; Shoulder Fractures*

Treatment of rotator cuff tears by open subacromial decompression has known successful in decreasing pain and restoring function in patients who have failed nonoperative treatment. But, open rotator cuff repair may result in significant deficits in strength and active motion by deltoid separation from the acromion. Deltoid detachment may be avoided by repair using mini-open technique. Arthroscopic subacromial decompression and the rotator cuff repair revel satisfactory results. Subacromial decompression involves decompression of the coracoacromial arch including routine release or resection of the coracoacromial ligament. Recent ligament-cutting studies have confirmed the role of the coracoacromial ligament as a static restraint to superior humeral head displacement. Complete resection of the coracoacromial ligament may be avoided through minimized arthroscopic acromioplasty. We evaluated all 11 patients with rotator cuff tears who underwent arthroscopic minimized subacromial decompression and rotator cuff repairs using mini-open technique. Their average age was 53 years (26 to 64 years); and the average follow-up was 13 months. Preoperatively, all patients complained pain and weakness. Follow-up using modified Hospital for Special Surgery shoulder score showed good to excellent results in 10 cases and poor results in 1 case an average 13 months postoperatively. We found that arthroscopic minimized subacromial decompression and repair using mini-open technique are safe, effective procedure for addressing cuff tears of a wide range of sizes.
Acromion ; Decompression ; Follow-Up Studies ; Humans ; Humeral Head ; Ligaments ; Rotator Cuff* ; Shoulder

BACKGROUND: Bokildo (Islet) has been well known as an endemic area of paragonimiasis in Korea, and still crayfishes caught from this area are used as source of intermediate host of experimental paragonimiasis. For the reason, this study was carried out to elucidate the present status of human paragonimiasis in this region and intestinal parasitoses were studied at the same time. METHODS: From June 9 to June 12, 1999 authors visited Buyong-ri and Buwhang-ri which are located in the endemic area. All possible inhabitants including nursery children, primary and middle school children were examined by intra-dermal skin test with veronal buffered saline (VBS) antigen of Paragonimus westermani and Clonorchis sinensis. Sputa were collected from 22 adults of positive reactors. Stool examination was done for the intestinal parasites, and anal swabs with adhesive tape for the pinworm were carried out simultaneously. RESULTS: Overall positive rate in skin test was 9.5% in inhabitants, and higher rate was observed in older age groups. On microscopic examination of sputa for pargonimiasis, 2 egg-positive cases from 55-year old man and woman were detected. Prevalence rate of intestinal parasites was 7.8% (26/332) and the most predominant infected parasite was Trichuris trichiura (4.2%). The pinworm infection rate was 29.7% (nursery school children 30.0%, primary school children 29.6%, respectively). CONCLUSION: Through this study human paragonimiasis was confirmed and the life cycle of Paragonimus westermani was known to be maintained continuously in this region. Meanwhile control of intestinal parasites should be performed, especially in school children.
Adhesives ; Adult ; Astacoidea ; Barbital ; Child ; Clonorchis sinensis ; Enterobius ; Female ; Humans* ; Korea* ; Life Cycle Stages ; Middle Aged ; Nurseries ; Paragonimiasis* ; Paragonimus westermani ; Parasites ; Prevalence ; Skin Tests ; Trichuris

Cutaneous larva migrans (CLM) is a rare serpiginous cutaneous eruption caused by accidental penetration and migration in the skin with infective larvae of nematode that normally do not have the human as their host. Although CLM has a worldwide distribution, the infection is most frequent in warmer climates. More recently, they have been increasingly imported from the tropics or subtropics by travelers. We experienced two patients who had pruritic serpiginous linear eruption in their skin for a few weeks after traveling to the endemic areas (Brazil and Thailand, respectively). After the treatment with albendazole, the skin lesions resolved with post-inflammatory hyperpigmentation. We report herein two cases of cutaneous larva migrans successfully treated with albendazole.
Adult ; Albendazole/therapeutic use ; Anthelmintics/therapeutic use ; Child, Preschool ; Female ; Human ; Larva Migrans/*drug therapy/pathology ; Male ; *Travel ; Treatment Outcome