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1.
Article in Korean | WPRIM (Western Pacific) | ID: wprim-740596

ABSTRACT

OBJECTIVES: The purpose of this study was to investigate the job satisfaction level of the dental staff working at oral health centers for people with disabilities. METHODS: A questionnaire survey was conducted with 73 dentists and dental hygienists working at seven regional oral health centers for people with special needs and dental hospitals for people with disabilities in Seoul. The questionnaire consisted of seven questions across two subscales: general satisfaction (4 questions) and satisfaction with wage and welfare (3 questions). The internal consistency of the questionnaire items was assessed using Cronbach's alpha (0.80). The responses were analyzed using a t-test with SPSS (version 23.0). RESULTS: Of the 73 dental staff members, 50% were dentists, 64% were women, and participants' average age was 30 years. In total, 58% of the participants had up to five years of experience working with people with disabilities, 42% of them worked full-time, and each participant treated an average of 200 patients with disabilities per month. The participants reported that their salary was relatively low. Dental hygienists had higher satisfaction level than dentists in the institution's welfare work. The more full-time workers answered, the more suitable they are for their work. CONCLUSIONS: The job satisfaction level of most professionals working in oral health centers for people with disabilities was not very high but they felt rewarded by their welfare work. It was inferred that it is necessary to examine and improve institutional support aspects such as human resource support. Increasing the number of centers in the central region is also needed.


Subject(s)
Dental Hygienists , Dental Staff , Dentists , Disabled Persons , Female , Humans , Job Satisfaction , Oral Health , Reward , Salaries and Fringe Benefits , Seoul
2.
Article in English | WPRIM (Western Pacific) | ID: wprim-713857

ABSTRACT

PURPOSE: Obesity has been associated with higher total blood mercury levels, based on animal studies; however, studies that focus on children and adolescents are lacking. We aimed to assess the association between total blood mercury levels and the incidence of overweight and abdominal obesity in Korean adolescents. METHODS: The study population comprised 1,567 adolescents (793 boys and 774 girls; aged 10–19 years), who participated in the Korea National Health and Nutrition Examination Survey 2010–2013. We analyzed total blood mercury levels according to obesity status in all participants. RESULTS: The geometric mean of total blood mercury levels was 1.93 µg/L. Participants with overweight (2.20 µg/L) and obesity (2.17 µg/L) had higher levels than those with normal weight (1.86 µg/L, P < 0.0001). The prevalence of overweight significantly increased with elevation of the total blood mercury quartile in both sexes. Increased incidence of abdominal obesity corresponding to increased total blood mercury level was observed in boys. After adjusting for covariates, those in the highest total blood mercury quartile were found to be at higher risk of overweight/obesity than those in the lowest quartile in both sexes (odds ratio [95% confidence interval]: boys, 3.27 [1.66–6.41]; girls, 1.90 [1.03–3.49]). The association between total blood mercury quartile and abdominal obesity was significant after controlling for covariates in boys (2.35 [1.05–5.24]). CONCLUSION: Our results suggest an association between total blood mercury levels and overweight in Korean adolescents.


Subject(s)
Adolescent , Animals , Child , Female , Humans , Incidence , Korea , Nutrition Surveys , Obesity , Obesity, Abdominal , Overweight , Prevalence
3.
Article in English | WPRIM (Western Pacific) | ID: wprim-717232

ABSTRACT

BACKGROUND: Gastrointestinal (GI) bleeding can result from various conditions, including ulcers, neoplasms and infectious enterocolitis. The aim of this study was to evaluate the utility of the fecal immunochemical transferrin test compared with the fecal Hb test in various clinical settings. METHODS: A total of 1,116 clinical stool specimens submitted for fecal occult blood testing were prospectively examined using both FIT Hb and FIT Tf kits (AlfresaPharma, Japan). To verify the specificity of the two tests, stool specimens from 265 health check-up examinees were also included. RESULTS: A review of medical records revealed that 396 patients had clinical conditions associated with GI bleeding. FIT Hb and FIT Tf results were positive in 156 (39.4%) and 137 (34.6%) cases, respectively, and an additional 194 (49.0%) cases tested positive with either FIT Hb or FIT Tf. The two tests showed a moderate strength of agreement (kappa value; 0.56). Colitis (n=71) was associated with the most GI bleedings, followed by acute gastroenteritis (n=29), GI ulcers (n=27) and GI cancers (n=15). While the first two groups had higher positive rates on FIT Tf, patients in the latter two groups had higher positive rates on FIT Hb. Notably, four of nine specimens from premature babies tested positive only on FIT Tf. The specificity of FIT Hb and FIT Tf was 100% and 99.6%, respectively. CONCLUSION: Concurrent use of FIT Hb and FIT Tf improved the detection rate of occult GI bleeding, especially in patients with infectious GI disease (such as colitis or gastroenteritis) and in premature babies.


Subject(s)
Colitis , Enterocolitis , Gastroenteritis , Hemorrhage , Humans , Medical Records , Occult Blood , Prospective Studies , Sensitivity and Specificity , Transferrin , Ulcer
5.
Article in Korean | WPRIM (Western Pacific) | ID: wprim-206640

ABSTRACT

Childhood obesity increases the risk of morbidity and mortality in adulthood. The epidemic of childhood obesity has become an important public health issue in Korea. Currently, the overall prevalence of obesity among Korean children and adolescents is approximately 10%, which is 5 times higher than in the late 1970s. In most cases, a positive energy balance (from excessive calorie intake and limited physical activity) combined with a genetic predisposition is considered the major cause of childhood obesity. The evaluation of obese children should focus on possible causes of weight gain, including lifestyle factors and underlying endocrine or genetic abnormalities. The assessment of obesity-related comorbidities, such as hyperglycemia, dyslipidemia, hypertension, and non-alcoholic fatty liver disease, is often needed in obese children, especially those who have a family history of comorbidities. Family-based lifestyle interventions including goal-setting, guidelines for eating habits and physical activity, self-monitoring, and stimulus control are fundamental to the management of childhood obesity. Medications and bariatric surgery are possible choices for patients with severe obesity and comorbidities, although the data on the long-term efficacy and safety of these treatments are limited. This article reviews practical assessments and interventions for childhood obesity.


Subject(s)
Adolescent , Bariatric Surgery , Child , Comorbidity , Dyslipidemias , Eating , Genetic Predisposition to Disease , Humans , Hyperglycemia , Hypertension , Korea , Life Style , Mortality , Motor Activity , Non-alcoholic Fatty Liver Disease , Obesity , Obesity, Morbid , Pediatric Obesity , Prevalence , Public Health , Weight Gain
6.
Article in English | WPRIM (Western Pacific) | ID: wprim-141827

ABSTRACT

PURPOSE: This study investigated the MRI, MR angiography (MRA) and MR perfusion findings of seizure-related cerebral cortical lesions during the periictal period. MATERIALS AND METHODS: From a retrospective review of the institutional database between 2011 and 2014, a total of 21 patients were included in this study. Two radiologists assessed periictal MRI, including MRA and MR perfusion, in patients with seizure-related cortical lesions. The parameters examined include: location of cortical abnormality, multiplicity of the affected cortical region, cerebral vascular dilatation, perfusion abnormality and other parenchymal lesions. RESULTS: All patients showed T2 hyperintense cerebral cortical lesions with accompanying diffusion restriction, either unilateral (18/21, 85.7%) or bilateral (3/21, 14.3%). Of the 21 patients enrolled, 10 (47.6%) had concurrent T2 hyperintense thalamic lesions, and 10 (47.6%) showed hippocampal involvement. Of the 17 patients (81%) who underwent MRA, 13 (76.5%) showed vascular dilatation with increased flow signal in the cerebral arteries of the affected cortical regions. On MR perfusion, all 5 patients showed cortical hyperperfusion, corresponding to the region of cortical abnormalities. CONCLUSION: Seizure-related cerebral cortical lesions are characterized by T2 and diffusion hyperintensities, with corresponding cerebral hyperperfusion and vascular dilatation. These findings can be helpful for making an accurate diagnosis in patients with seizure.


Subject(s)
Angiography , Cerebral Arteries , Diagnosis , Diffusion , Dilatation , Humans , Magnetic Resonance Angiography , Magnetic Resonance Imaging , Perfusion , Retrospective Studies , Seizures
7.
Article in English | WPRIM (Western Pacific) | ID: wprim-141826

ABSTRACT

PURPOSE: This study investigated the MRI, MR angiography (MRA) and MR perfusion findings of seizure-related cerebral cortical lesions during the periictal period. MATERIALS AND METHODS: From a retrospective review of the institutional database between 2011 and 2014, a total of 21 patients were included in this study. Two radiologists assessed periictal MRI, including MRA and MR perfusion, in patients with seizure-related cortical lesions. The parameters examined include: location of cortical abnormality, multiplicity of the affected cortical region, cerebral vascular dilatation, perfusion abnormality and other parenchymal lesions. RESULTS: All patients showed T2 hyperintense cerebral cortical lesions with accompanying diffusion restriction, either unilateral (18/21, 85.7%) or bilateral (3/21, 14.3%). Of the 21 patients enrolled, 10 (47.6%) had concurrent T2 hyperintense thalamic lesions, and 10 (47.6%) showed hippocampal involvement. Of the 17 patients (81%) who underwent MRA, 13 (76.5%) showed vascular dilatation with increased flow signal in the cerebral arteries of the affected cortical regions. On MR perfusion, all 5 patients showed cortical hyperperfusion, corresponding to the region of cortical abnormalities. CONCLUSION: Seizure-related cerebral cortical lesions are characterized by T2 and diffusion hyperintensities, with corresponding cerebral hyperperfusion and vascular dilatation. These findings can be helpful for making an accurate diagnosis in patients with seizure.


Subject(s)
Angiography , Cerebral Arteries , Diagnosis , Diffusion , Dilatation , Humans , Magnetic Resonance Angiography , Magnetic Resonance Imaging , Perfusion , Retrospective Studies , Seizures
8.
Article in English | WPRIM (Western Pacific) | ID: wprim-99774

ABSTRACT

Growth hormone (GH) is important for promotion of somatic growth and the regulation of substrate metabolism. Metabolic action of GH occurs in multiple tissues including the liver, muscle, fat and pancreas either directly or indirectly through insulin-like growth factor 1. The diabetogenic action of GH has been well-described in previous in vivo studies. In this paper, we review the metabolic effects of GH on peripheral tissues focusing on glucose metabolism and insulin resistance, and discuss results from human studies on the long-term effects of GH administration on insulin resistance and hyperglycemia.


Subject(s)
Glucose , Growth Hormone , Humans , Hyperglycemia , Insulin Resistance , Insulin , Liver , Metabolism , Pancreas
9.
Article in English | WPRIM (Western Pacific) | ID: wprim-118251

ABSTRACT

The corpus callosum (CC) is the largest white matter structure in the brain, consisting of more than 200–250 million axons that provide a large connection mainly between homologous cerebral cortical areas in mirror image sites. The posterior end of the CC is the thickest part, which is called the splenium. Various diseases including congenital to acquired lesions including congenital anomalies, traumatic lesions, ischemic diseases, tumors, metabolic, toxic, degenerative, and demyelinating diseases, can involve the splenium of the CC and their clinical symptoms and signs are also variable. Therefore, knowledge of the disease entities and the imaging findings of lesions involving the splenium is valuable in clinical practice. MR imaging is useful for the detection and differential diagnosis of splenial lesions of the CC. In this study, we classify the disease entities and describe imaging findings of lesions involving the splenium of the CC based on our experiences and a review of the literature.


Subject(s)
Axons , Brain , Corpus Callosum , Demyelinating Diseases , Diagnosis, Differential , Magnetic Resonance Imaging , White Matter
10.
Article in English | WPRIM (Western Pacific) | ID: wprim-194482

ABSTRACT

PURPOSE: Susceptibility vessel sign (SVS) on gradient echo image, which is caused by MR signal loss due to arterial thrombosis, has been reported in acute middle cerebral artery (MCA) infarction. However, the reported sensitivity and diagnostic accuracy of SVS have been variable. Susceptibility-weighted imaging (SWI) is a newly developed MR sequence. Recent studies have found that SWI may be useful in the field of cerebrovascular diseases, especially for detecting the presence of prominent veins, microbleeds and the SVS. The purpose of this study was to evaluate the diagnostic values of SWI for the detection of hyperacute MCA occlusion. MATERIALS AND METHODS: Sixty-nine patients (37 males, 32 females; 46-89 years old [mean, 69.1]) with acute stroke involving the MCA territory underwent MR imaging within 6 hours after the symptom onset. MR examination included T2, FLAIR (fluid-attenuated inversion recovery), DWI, SWI, PWI (perfusion-weighted imaging), contrast-enhanced MR angiography (MRA) and contrast-enhanced T1. Of these patients, 28 patients also underwent digital subtraction angiography (DSA) within 2 hours after MR examination. Presence or absence of SVS on SWI was assessed without knowledge of clinical, DSA and other MR imaging findings. RESULTS: On MRA or DSA, 34 patients (49.3%) showed MCA occlusion. Of these patients, SVS was detected in 30 (88.2%) on SWI. The sensitivity, specificity, positive predictive value, negative predictive value and diagnostic accuracy of SWI were 88.2%, 97.1%, 96.8%, 89.5% and 92.8%, respectively. CONCLUSION: SWI was sensitive, specific and accurate for the detection of hyperacute MCA occlusion.


Subject(s)
Angiography , Angiography, Digital Subtraction , Cerebrovascular Disorders , Female , Humans , Infarction , Magnetic Resonance Imaging , Male , Middle Cerebral Artery , Sensitivity and Specificity , Stroke , Thrombosis , Veins
11.
Article in English | WPRIM (Western Pacific) | ID: wprim-110193

ABSTRACT

PURPOSE: Only a few studies have explored nationwide trends in lipid profiles among Asian adolescents. We aimed to assess trends in lipid profiles and the associated lifestyle factors among Korean children. METHODS: We analyzed data for 2,094 adolescents who were aged 10-18 years and had participated in the Korea National Health and Nutrition Examination Surveys in 1998 and 2010. RESULTS: During 1998-2010, the prevalence of obesity significantly increased in boys, but no changes were observed in girls. Over this period, there was a small but significant decrease in the mean low-density lipoprotein (LDL)-cholesterol level in boys (1998, 87.5 mg/dL; 2010, 83.6 mg/dL; P=0.019) and mean triglyceride levels in girls (1998, 90.8 mg/dL; 2010, 85.8 mg/dL; P=0.020). There were no significant changes in the prevalence of dyslipidemia in boys, but a modest decrease was noted in girls (1998, 25.1%; 2010, 18.3%; P=0.052). During the study period, the prevalence of breakfast skipping decreased, whereas that of regular exercise increased in both groups. Daily total energy intake did not change between these years. In multivariable logistic regression analyses, breakfast skipping was associated with increased risk of hyper-LDL-cholesterolemia in boys (odds ratio [OR], 5.77) and hypertriglyceridemia (OR, 2.27) in girls. Regular exercise was associated with decreased risk of hypo-HDL-cholesterolemia (OR, 0.40) in boys. CONCLUSION: Although the prevalence of obesity in boys increased, favorable or constant trends in lipid profiles were observed among Korean adolescents during 1998-2010. Decrease in breakfast skipping and increase in regular exercise may have contributed to these trends.


Subject(s)
Adolescent , Asian Continental Ancestry Group , Breakfast , Child , Dyslipidemias , Energy Intake , Female , Humans , Hypertriglyceridemia , Korea , Life Style , Lipoproteins , Logistic Models , Obesity , Prevalence , Triglycerides
12.
Article in English | WPRIM (Western Pacific) | ID: wprim-128907

ABSTRACT

PURPOSE: This study aimed to assess the reference values and factors influencing blood lead levels among Korean adolescents. METHODS: The study population consisted of 1,585 adolescents (801 males, 784 females; aged 10-19 years) who participated in the Korea National Health and Nutrition Examination Survey 2010-2013. We analyzed blood lead concentrations in relation to demographic/lifestyle characteristics for all participants. "Reference values" of blood lead levels were calculated as the upper limit of the 95% confidence interval of the 95th percentile. RESULTS: The average "reference value" for blood lead concentrations among Korean adolescents was 2.25 µg/dL (2.49 µg/dL for males, 2.07 µg/dL for females), and the geometric mean of the blood lead concentrations was 1.34 µg/dL. Males had higher blood lead concentrations than females (male, 1.48 µg/dL; female, 1.19 µg/dL; P<0.001). Elementary school students had higher blood lead concentrations than junior and senior high school students (1.44 µg/dL vs. 1.31 µg/dL, P<0.001). Participants living in detached houses had higher blood lead concentrations than those living in apartments (P<0.001) and current smokers had higher concentrations than nonsmokers or participants with secondhand smoke exposure (P<0.05). Additionally, participants with excessive alcohol consumption had higher levels than non-drinkers (P<0.001). CONCLUSION: This study provides national reference data on blood lead concentrations stratified by demographic and lifestyle factors among Korean adolescents. Further studies are needed to elucidate the relationship between increased lead exposure and demographic factors including type of housing.


Subject(s)
Adolescent , Alcohol Drinking , Demography , Female , Housing , Humans , Korea , Life Style , Male , Nutrition Surveys , Reference Values , Tobacco Smoke Pollution
13.
Article in English | WPRIM (Western Pacific) | ID: wprim-128890

ABSTRACT

PURPOSE: This study aimed to assess the reference values and factors influencing blood lead levels among Korean adolescents. METHODS: The study population consisted of 1,585 adolescents (801 males, 784 females; aged 10-19 years) who participated in the Korea National Health and Nutrition Examination Survey 2010-2013. We analyzed blood lead concentrations in relation to demographic/lifestyle characteristics for all participants. "Reference values" of blood lead levels were calculated as the upper limit of the 95% confidence interval of the 95th percentile. RESULTS: The average "reference value" for blood lead concentrations among Korean adolescents was 2.25 µg/dL (2.49 µg/dL for males, 2.07 µg/dL for females), and the geometric mean of the blood lead concentrations was 1.34 µg/dL. Males had higher blood lead concentrations than females (male, 1.48 µg/dL; female, 1.19 µg/dL; P<0.001). Elementary school students had higher blood lead concentrations than junior and senior high school students (1.44 µg/dL vs. 1.31 µg/dL, P<0.001). Participants living in detached houses had higher blood lead concentrations than those living in apartments (P<0.001) and current smokers had higher concentrations than nonsmokers or participants with secondhand smoke exposure (P<0.05). Additionally, participants with excessive alcohol consumption had higher levels than non-drinkers (P<0.001). CONCLUSION: This study provides national reference data on blood lead concentrations stratified by demographic and lifestyle factors among Korean adolescents. Further studies are needed to elucidate the relationship between increased lead exposure and demographic factors including type of housing.


Subject(s)
Adolescent , Alcohol Drinking , Demography , Female , Housing , Humans , Korea , Life Style , Male , Nutrition Surveys , Reference Values , Tobacco Smoke Pollution
14.
Article in English | WPRIM (Western Pacific) | ID: wprim-39534

ABSTRACT

This report evaluated long-term changes in clinical severity and laboratory parameters in 3 adult patients with severe recalcitrant atopic dermatitis (AD) who were treated with intramuscular injections of 50 mg of autologous immunoglobulin G (IgG) twice a week for 4 weeks (autologous immunoglobulin therapy, AIGT) and followed up for more than 2 years after the treatment. We observed the following 4 major findings in these 3 patients during the long-term follow-up after AIGT. (1) Two of the 3 patients showed a long-term clinical improvement for more than 36 weeks after AIGT with a maximum decrease in clinical severity score greater than 80% from baseline. (2) These 2 patients also showed long-term decreases in serum total IgE concentrations and peripheral blood eosinophil count for more than 36 weeks after AIGT with a maximum decrease in the two laboratory parameters of allergic inflammatory greater than 70% from baseline. (3) No significant side effect was observed during the 2 years of follow-up period after the AIGT in all 3 patients. (4) Serum levels of IgG anti-idiotype antibodies to the F(ab')2 fragment of autologous IgG administered for the treatment were not significantly changed after AIGT in all 3 patients. These findings suggest that AIGT has long-term favorable effects on both clinical severity and laboratory parameters in selected patients with severe recalcitrant AD. Further studies are required to evaluate the clinical usefulness and therapeutic mechanism of AIGT for AD.


Subject(s)
Adult , Antibodies , Antibodies, Anti-Idiotypic , Dermatitis, Atopic , Eosinophils , Follow-Up Studies , Humans , Immunization, Passive , Immunoglobulin E , Immunoglobulin G , Immunoglobulins , Immunomodulation , Injections, Intramuscular
15.
Yonsei Medical Journal ; : 658-663, 2016.
Article in English | WPRIM (Western Pacific) | ID: wprim-21848

ABSTRACT

PURPOSE: To describe the relationship between the waist-to-height ratio (WHtR) and cardiometabolic risk factors (CMRFs) and to evaluate the validity of WHtR in identifying adolescents with metabolic syndrome. MATERIALS AND METHODS: We analyzed data from a pooled population of 4068 adolescents aged 10-19 years from the Korean National Health and Nutrition Examination Surveys conducted between 1998 and 2008. Overweight individuals were defined by body mass index (BMI) ≥85th percentile. Those with at least 2 CMRFs among hypertension, hyperglycemia, hypertriglyceridemia, and decreased high-density lipoprotein cholesterol (HDL-C) were classified as having multiple CMRFs. RESULTS: WHtR was significantly related to systolic blood pressure, HDL-C, and triglycerides in both non-overweight and overweight adolescents (all p<0.01). Among overweight adolescents, the area under the curve (AUC) for WHtR in identifying multiple CMRFs was significantly greater than that for BMI (p=0.014). Metabolic syndrome was more common in overweight adolescents with a WHtR of ≥0.5 than in those with a WHtR of <0.5 (p<0.001). In non-overweight adolescents, the prevalences of multiple CMRFs (p=0.001) and metabolic syndrome (p<0.001) were higher in those with a WHtR of ≥0.5 than in those with a WHtR of <0.5. Among those without central obesity, the prevalence of multiple CMRFs was higher in those with a WHtR of ≥0.5 than in those with a WHtR of <0.5 (p=0.021). CONCLUSION: WHtR is a simple and valid index for identifying adolescents with increased cardiometabolic risk and is related to CMRFs even in non-overweight adolescents. In adolescents already screened via BMI and waist circumference (WC), WHtR seems to be of additional help in discriminating those at higher cardiometabolic risk.


Subject(s)
Adolescent , Blood Pressure/physiology , Body Height , Body Mass Index , Cardiovascular Diseases/epidemiology , Child , Cholesterol, HDL/blood , Female , Humans , Hypertension/complications , Male , Metabolic Syndrome/epidemiology , Nutrition Surveys , Obesity, Abdominal/complications , Republic of Korea/epidemiology , Risk Factors , Triglycerides/blood , Waist Circumference/physiology , Waist-Height Ratio , Young Adult
16.
Annals of Coloproctology ; : 202-204, 2015.
Article in English | WPRIM (Western Pacific) | ID: wprim-226777

ABSTRACT

Metastatic tumors of the spermatic cord are extremely rare, and the prognosis for patients is typically poor. In the majority of cases, the primary tumor occurs in the gastrointestinal tract. We report a case of a 62-year-old man with a metastatic spermatic cord tumor. The patient complained of groin discomfort with a tender mass in the right inguinal area. An excisional biopsy was performed, and the pathologic finding was a metastatic mucinous adenocarcinoma. We performed a systemic evaluation including colonoscopy, abdominal computed tomography, and total-body positron emission tomography, and the primary tumor was confirmed to involve the total colon, including the cecum, sigmoid colon, and rectum. The pathologic finding for rectum revealed a mucinous adenocarcinoma compatible with a metastatic spermatic cord tumor.


Subject(s)
Adenocarcinoma, Mucinous , Biopsy , Cecum , Colon , Colon, Sigmoid , Colonoscopy , Colorectal Neoplasms , Gastrointestinal Tract , Groin , Humans , Middle Aged , Neoplasm Metastasis , Positron-Emission Tomography , Prognosis , Rectum , Spermatic Cord
17.
Article in Korean | WPRIM (Western Pacific) | ID: wprim-61453

ABSTRACT

BACKGROUND: Automated assays have recently been developed for efficient serological testing of syphilis infection. Here, we evaluate the performance of new automated serological assays for syphilis infection. METHODS: The precision, linearity, and detection limit of the automated kits AutoLab rapid plasma reagin (RPR) (IVD-RPR) and AutoLab (Treponema pallidum Latex Agglutination) TPLA (IVD-TPLA) (IVDLab Co., Korea) were evaluated using an immunoturbidimetric method. In addition, the results of these tests were compared with those obtained using the HiSens Auto RPR LTIA (HBi-RPR) and HiSens Auto TP LTIA (HBi-TPLA) tests (HBi Co., Korea) with 122 serum samples. RESULTS: Both the IVD-RPR and IVD-TPLA kits showed acceptable precision for the positive controls (IVDLab Co., Korea). The within-run and total precision of IVD-RPR were better than those of HBi-RPR at cut-off levels (CV, 7.0% to 7.4% for IVD-RPR; CV, 33.3% to 40.0% for HBi-RPR). The IVD-RPR and IVD-TPLA kits demonstrated acceptable linearity and limits of detection. The agreement rate between IVD-RPR and HBi-RPR was 83.60% (102/122). Nineteen samples were IVD-RPR negative but HBi-RPR positive; 12 of these were from patients with a history of syphilis. The agreement rate between IVD-TPLA and HBi-TPLA was 96.72% (118/122). All discrepant results were IVD-TPLA positive and HBi-TPLA negative. CONCLUSIONS: IVD-RPR and IVD-TPLA exhibited acceptable precision, linearity, and limits of detection for the diagnosis of syphilis infection. IVD-RPR was suitable for monitoring syphilis infections with good precision that was near cut-off levels. IVD-TPLA was useful for detecting primary syphilis infection.


Subject(s)
Agglutination , Diagnosis , Humans , Latex , Limit of Detection , Plasma , Serologic Tests , Syphilis , Treponema pallidum
18.
Laboratory Medicine Online ; : 149-156, 2015.
Article in Korean | WPRIM (Western Pacific) | ID: wprim-20544

ABSTRACT

BACKGROUND: Hepcidin, a key regulator of iron homeostasis, is associated with iron metabolism imbalance in patients with chronic kidney disease (CKD). However, serum hepcidin level in anemic patients with CKD presents a contradictory picture. We investigated the relationship between serum hepcidin-25 level and iron parameters in patients with CKD. METHODS: We defined and categorized patients with CKD according to the Kidney Disease Outcomes Quality Initiative (KDOQI) guidelines. We analyzed the relationship between serum hepcidin-25 level and iron parameters [serum iron, total iron-binding capacity (TIBC), unbound iron-binding capacity (UIBC), transferrin saturation, and ferritin levels] according to the CKD stage and clinical and laboratory characteristics. RESULTS: Hb level, TIBC, and UIBC decreased and ferritin level increased (Ptrend0.05). CONCLUSIONS: Serum hepcidin-25 level was not found to be associated with iron parameters or clinical status of CKD patients in our study. Determination of hepcidin-25 levels may not provide more information than conventional iron parameters in monitoring iron metabolism in CKD patients. However, further studies are needed to establish the clinical utility of hepcidin measurement in CKD patients.


Subject(s)
Anemia , Ferritins , Hepcidins , Homeostasis , Humans , Iron , Kidney , Kidney Diseases , Metabolism , Renal Insufficiency, Chronic , Transferrin
19.
Korean Journal of Medicine ; : 738-742, 2014.
Article in Korean | WPRIM (Western Pacific) | ID: wprim-219252

ABSTRACT

Stickler syndrome is a genetic disorder characterized by ophthalmologic, craniofacial, audiologic, and joint problems. In this report, we describe a 10-year-old boy presenting with a flat face, high myopia, retinal detachment, arthropathy, short stature, and mental retardation. Sequencing of the COL2A1 gene revealed a novel mutation, c.3055C > T (p.Pro1019Ser), consistent with a diagnosis of Type 1 Stickler Syndrome.


Subject(s)
Child , Diagnosis , Humans , Intellectual Disability , Joints , Male , Myopia , Retinal Detachment
20.
Korean Journal of Medicine ; : 756-760, 2014.
Article in Korean | WPRIM (Western Pacific) | ID: wprim-219248

ABSTRACT

Malignant mesothelioma is a rare aggressive tumor and arises from mesothelial cells in the pleural, peritoneal and pericardial cavities. Median survival is -1 year and the incidence is approximately 0.7 per million persons, and is increasing annually in Korea. It is difficult to diagnose malignant mesothelioma because of nonspecific symptoms, signs and laboratory findings. It needs to be confirmed by histological examination and immunohistochemistry. There is no case report of malignant mesothelioma of the peritoneum and pleura in Korea. We report a rare case of malignant mesothelioma with simultaneous involvement of the peritoneum and pleura in a 75-year-old man without evidence of asbestos exposure.


Subject(s)
Aged , Asbestos , Humans , Immunohistochemistry , Incidence , Korea , Mesothelioma , Peritoneum , Pleura
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