PURPOSE: The purpose of this study is to investigate the clinical manifestations and antibiotic resistance of salmonellosis in children. METHODS: We reviewed medical records and investigated the clinical characteristics of culture-proven childhood salmonellosis from January 2000 through December 2011 at the CHA Bundang Medical center. RESULTS: We assessed 53 patients. The median age was 3-years-old (minimum 12 days, maximum 18-years-old) and the number of male patients was 33 (62.3%). It occurred most frequently in the summer (39%) and in 2001 (11 cases) however there was no case in 2009 and 2010. Salmonella typhi was isolated in 3 cases with septicemia. Antibiotic resistance to ampicillin was most frequently presented (30.2%) and 63.6% in serogroup B. No antibiotics resistance strains were cultured in patients with positive Salmonella typhi. Admitted patients from 2000 to 2011 were divided into 2 groups; group 1 from 2000 to 2005 and group 2 from 2006 to 2011. 40 cases belonged to group 1 and 13 cases were in the group 2. Group 2 showed more resistance to ampicillin than group 1 but without any statistical significance(25% vs. 38.5%, P=0.349). In group 1, the most common serotype was group D and in group 2, the most common serotype were group C and D. CONCLUSION: Salmonellosis in children was frequently occurred from 2000 to 2003 but decreased after 2004. There was no difference in clinical manifestations, serotypes and antibiotic resistances between the years.
Ampicillin ; Anti-Bacterial Agents ; Child ; Drug Resistance, Microbial ; Humans ; Male ; Medical Records ; Salmonella Infections ; Salmonella typhi ; Sepsis

PURPOSE: This study aimed to explore how prevalent the community-related methicillin-resistant Staphylococcus aureus (CA-MRSA) was in children with muscular-skeletal infections. METHODS: We retrospectively reviewed the medical records of patients of 18 years or under who were diagnosed with suppurative arthritis or osteomyelitis and S. aureus from September 2000 through August 2012 at the CHA Bundang Medical center. RESULTS: Thirty-one cases of suppurative arthritis or osteomyelitis were identified. The patients were between 17 days old and 18 years old with an average age of 7. Eleven cases (33.5%) of suppurative arthritis and 16 cases (51.6%) of osteomyelitis were observed. Five cases were accompanied by the two diseases. Methicillin sensitive S. aureus (MSSA) was isolated in 25 cases (80.6%) and methicillin resistant S. aureus (MRSA) was isolated in 6 cases (19.4%). Multidrug resistant strains were not observed. MRSA was not found from 2000 through 2005. All patients were treated with antibiotics and the duration of antibiotics treatment was 26.4+/-12.7 days. Vancomycin was used as the initial antibiotic treatment in 4 cases (12.9%) and vancomycin was used as the definitive antibiotics in the 10 cases (32.3%). CONCLUSIONS: The result of this study showed that methicillin resistance rate of S. aureus from muscular-skeletal infections was concentrated in the latter half of the 12 year period.
Anti-Bacterial Agents ; Arthritis, Infectious ; Child ; Humans ; Medical Records ; Methicillin ; Methicillin Resistance ; Methicillin-Resistant Staphylococcus aureus ; Osteomyelitis ; Retrospective Studies ; Vancomycin

For confirmative diagnosis of bone and joint tuberculosis, it is made by culture method, inoculation to guinea pig, or histological examination of the specimen obtained from a lesion site. But plain reontgenogram is not valuable for early detection of the disease because specific, abnormal finding is not found in early stage and only found in late stage as progressive destruction of bone and joint. Many reports were made thst whole body bone scan, as diagnostic tool, was valuable in other orthopedic disease, but report for its diagnostic value in bone and joint tuberculosis is very rare. The study was carried out on 35 patients of bone and joint tuberculosis who whole body bone scan was performed before operation from Janusry, 1978 to December, 1987 in Depaartment of Orthopedic Surgery, Yonsei University college of Medicine. The following results were obtained. 1. Value of early detection of tuberculosis is not much as pyogenic infection. Intensity of uptake was decreased in tuberculosis than acute pyogenic osteomyelitis and arthritis, but increased than chronic osteomyelitis. 2. Intensity of uptake was decreased in female than male, and also increased in age. group under 10 and over 60 than other age group. 3. The longer duration of the disease, the more decreased intensity of uptake. 4. Intensity of uptake is increased in joint tuberculosis than bone, snd also increased in tuberculosis of spine than long bone. 5. Multifocal disease was detected in 14.3% by whole body bone scan.
Animals ; Arthritis ; Diagnosis ; Female ; Guinea Pigs ; Humans ; Joints ; Male ; Methods ; Orthopedics ; Osteomyelitis ; Spine ; Tuberculosis ; Tuberculosis, Osteoarticular

BACKGROUND: Plant extracts have been widely used as important therapeutic drugs for many centuries all over the world. There have been many reports that natural products have various kinds of biological activities such as anti-allergy, anti-inflammatory and antimicrobial activities. Recently, the screening for the efficacy and safety of natural products has been extensively performed. OBJECTIVE: This study was carried out to find a beneficial plant extract possessing excellent antioxidative and anti-melanogenic activities. We have found that the leaf of Robinia pseudo-acacia L. has active substances which are involved in those activities. METHODS: To confirm the antioxidative activity of the extract obtained from the leaves of Robinia pseudo-acacia L., scavenging ability of the extract on DPPH free radicals and its inhibitory effects on lipid autoxidation and peroxidation were investigated. In addition, inhibitory effects of the extract on mushroom tyrosinase as well as melanin biosynthesis in cultured B16 melanoma cells were evaluated. RESULTS: The acacia extract showed not only powerful antioxidative activity but also antimelanogenic acitivity as strong as that of arbutin which is a well known inhibitor of melanogenesis. CONCLUSION: These resulis suggest that the extract from the leaves of Robinia pseudo-acacia L. could be used as a 4ghtening and antioxidative agent for the skin.
Acacia ; Agaricales ; Arbutin ; Biological Products ; Free Radicals ; Mass Screening ; Melanins ; Melanoma, Experimental ; Monophenol Monooxygenase ; Plant Extracts ; Plants ; Robinia* ; Skin

No abstract available.
Hemoglobin A* ; Humans ; Mothers* ; Postpartum Period*

We report a case of giant cell tumor of the tendon sheath involving the foot, in a 21-year-old female patient, who presented with an asymptomatic tumor on the dorsum of her right foot. Histopathologically the tumor is surrounded by thin fibrous connective tissue. The characteristic findings of the excised specimen revealed a typical mixture of abundunt round or polygonal histocyte-like cells with varying portions of spindle-shaped fibroblast-like cells and multinucleated giant cells. Variable amounts of hyalinized fibrous stromal tissue were also present. After excision, local recurrence has not been observed for 3 months.
Connective Tissue ; Female ; Foot* ; Giant Cell Tumors* ; Giant Cells* ; Humans ; Hyalin ; Recurrence ; Tendons* ; Young Adult

BACKGROUND: Endotoxins play important roles in the pathophysiologic alterations associated with sepsis so the authors examined the effects of hydroxocobalamin, NW-nitro-L-arginine-metyl ester (L-NAME) and aminoguanidine on thiopental-induced contractile responses of lipopolysaccharide (LPS)-treated and control rat aortic rings. METHODS: Aortic ring preparation was obtained from LPS-treated (1.5mg/kg, i.p. for 18h) rats. Cumulative doses of thiopental (10-4~3x10- 3M) were added to construct contraction response curves. Hydroxocobalamin (10-5M), L-NAME (10-6M) or aminoguanidine (10-6M) were added as NO scavenger or as NOS inhibitors. Contraction curves by cumulative doses of thiopental (10-4~3x10-3M) were remeasured after treatment of NO scavenger or NOS inhibitors. Statistical significances (p<00.05) were analyzed according to data characteristics by Student's t-test, paired t-test or ANOVA. RESULTS: The vascular responses of cumulative thiopental (10-4~3x10 3M) administration were dose- dependent contraction and LPS-treated rat was less contracted (p<00.05). There was significant increment on vascular contraction induced by thiopental after hydroxocobalamin pretreatment in LPS-treated rat (p<0.05), in spite of L-NAME, aminoguanidine pretreatment was failed to increase contractile forces in control and LPS-treated rats. CONCLUSIONS: From these results, viewed from maintenance of vasomotor tone in septic state, it is suggested that hydroxocobalamin may be candidate for vasopressor during usual induction of general anesthesia.
Anesthesia, General ; Animals ; Aorta, Thoracic* ; Endotoxins ; Hydroxocobalamin* ; NG-Nitroarginine Methyl Ester ; Rats* ; Sepsis ; Thiopental

The autogenous fascia graft has been used for various surgical purposes because it has good durability, a gliding capacity, elasticity and a high survival rate. However, few studies have reported histological changes of the graft in various situations. This study attempted to determine histomorphologic changes after autogenous fascia graft in various surgical conditions. The results revealed were as follows: 1. The tension applied to grafts plays the key role in the survival rate of autogenous fascia grafts. 2. Rolling the fascia reduced the volume and weight after autogenous graft due to fibrosis and central fatty degeneration. 3. Autogenous fascia graft covering silicone blocks showed its fascial structure and reduction of the formation of fibrous capsule around the silicone.
Elasticity ; Fascia ; Fibrosis ; Silicones ; Survival Rate ; Transplants*

For the determination of the usefulness of the pulsed Doppler echocardiographic diagnosis of ASD. We evaluated 185 children with congenital heart disase by subxiphoid approach. ASD was diagnosed when abnormal flow was recorded in right atrium. ASD was proved by surgery in 33 of 185 children with congenital heart disease, and all children had sugical correction of their heart deformities. On pulsed Doppler echocardiographic exmination, abnormal flow was recorded in 32 of the 33 children with ASD and 3 of 152 children without ASD. This pulsed Doppler echocardiographic diagnosis of ASD by abnormal flow in right atrium has sensitively of 97% and specificity of 98%. High correlation was found between the estimates of Qp/Qs ratio by Doppler and Fick method(r=0.90, P<0.01). So we concluded that pulsed Doppler echocardiographic diagnosis of ASD was specific and sensitive method and careful pulsed Doppler echocardiographic examination may avoid the unnecessary cardiac catheterizetion in patients with ASD.
Child ; Congenital Abnormalities ; Diagnosis ; Echocardiography ; Echocardiography, Doppler* ; Echocardiography, Doppler, Pulsed ; Heart ; Heart Atria ; Heart Defects, Congenital ; Heart Septal Defects, Atrial* ; Humans ; Sensitivity and Specificity

The hydrophobicity assay and DNA probe hybridization assay were compared for analysis of enterotoxigenic Escherichia coli(ETEC), heat-labile enterotoxin(LT) and heat-stable enterotoxin (ST). The ETEC isolated from diarrheal patients were serotyped and investigated for the presence of colonization factor antigens CFA/1, CFA/II, CFA/III and CFA/IV with the expression of mannose-resistant hemagglutination(MRHA) and the levels of surface hydrophobicity. The following results were obtained. 1. Out of these 48 strains, 34 strains were found to be positive for LT production by DNA probe hybridization assay. Out of 34 strains, 1 strain was ST producer, 25 strains were LT producers, and 8 strains were produced both ST+LT producers by DNA probe hybridization assay. 2. Out of 34 strains of positive DNA probe hybridization test, 31 strains was positive in the hydrophobicity test. Among strains of positive hydrophobicity test, 20, 1, and 7 strains produced only LT, only ST and both ST-LT, respectively. Screening efficiency for identifying ETEC by salting out test was 82.4% in sensitivity and 78.6% in specificity. For ETEC detection, the hydrophobicity assay was the least sensitive but was simple, rapid and a good substitute for the DNA probe hybridization assay. 4. CFAs were identified in 43.8% of ETEC strains; 2.1% of the CFAs strains with CFAs harbored CFA/I, 29.2% carried CFA/II, 16.7% carried CFA/III and CFA/IV. And 35.4% expressed none of these CFAs. CFA/I was found in ETEC of serotype 0128: K67, CFA/II was 0128: K67, 0142: K+ and 0159: K+, CFA/III was 086a: K15 and 0128: K67, CFA/IV was 0 86a: K15, 0128: K67, 0125: K70 and 0148: K+.
Colon ; DNA* ; Enterotoxigenic Escherichia coli* ; Enterotoxins ; Escherichia ; Humans ; Hydrophobic and Hydrophilic Interactions* ; Mass Screening ; Sensitivity and Specificity