This study evaluated the pharmacokinetic profile and therapeutic efficacy of piroxicam (PX), a long acting non-steroidal anti-inflammatory drug for the treatment of arthritis, following intra-articular (IA) injection in comparison to the pharmacokinetic profile and therapeutic efficacy of PX after intramuscular (IM) injection. In the pharmacokinetic study in rats, systemic exposure and pharmacokinetic parameters of PX after a single IA dose were compared with systemic exposure and pharmacokinetic parameters of PX after administration of the same dose IM (0.6 mg/kg). The anti-inflammatory and analgesic effects of IA PX were evaluated simultaneously in a monoiodoacetate-induced osteoarthritis rat model. The plasma PX concentration rapidly rose following IA injection, and it was comparable to the plasma PX concentration following IM injection, suggesting the rapid efflux of the drug molecule from the joint cavity. However, in the efficacy study, the IA PX administration significantly reduced the knee swelling by reducing the level of prostaglandin E2 in the joint, compared to that following administration of IA vehicle and after administration of the IM PX dose. In addition, we found that the anti-inflammatory and anti-nociceptive efficacies of IA PX were synergistically increased upon co-treatment with hyaluronic acid (HA), a potent agent for the treatment of osteoarthritis, at the weight ratio of 1:1 or 1:2, and these effects were more pronounced than those following administration of HA or PX alone. In conclusion, this study demonstrated the efficacy of the IA use of PX alone and/or in combination with HA in osteoarthritis.
Animals ; Arthritis ; Dinoprostone ; Hyaluronic Acid ; Injections, Intra-Articular ; Joints ; Knee ; Models, Animal ; Osteoarthritis ; Pharmacokinetics* ; Piroxicam* ; Plasma ; Rats*

PURPOSE: The aim of the present study aimed to evaluate the effect of testosterone on cardiovascular disease by using the Framingham Risk Score (FRS) in patients with sexual dysfunction. MATERIALS AND METHODS: A total of 308 men with sexual dysfunction were enrolled in this study. Clinical assessments included the 15-item International Index of Erectile Function (IIEF), blood pressure measurement, and clinical laboratory indexes. The FRS, which predicts the incidence rate of cardiovascular diseases in the next 10 years, was calculated on the basis of age, gender, total cholesterol, smoking status, high density lipoprotein cholesterol, and systolic blood pressure. RESULTS: The mean age of the 308 enrolled patients was 49.42+/-10.73 years, and the patients' mean body mass index (kg/m2) was 25.07+/-3.14. The mean total IIEF score was 28.44+/-18.06. The median total testosterone concentration was 3.2 ng/mL (interquartile range [IQR]: 2.3~3.2 ng/mL). The median calculated free and bioavailable testosterone concentrations were 0.052 ng/mL (IQR 0.039~0.070 ng/mL) and 1.30 ng/mL (IQR: 1.00~1.76 ng/mL), respectively. The mean FRS was 10.47+/-6.45. The FRS tended to show a negative correlation with the total and calculated free testosterone levels, but this was not significant (p=0.064 and p=0.074, respectively). In the multiple linear regression analysis, a significant negative correlation was observed between the total testosterone level and the FRS (p=0.048). CONCLUSIONS: The results suggest that the testosterone level is related to the FRS and that a high testosterone level may decrease the risk of cardiovascular disease.
Blood Pressure ; Body Mass Index ; Cardiovascular Diseases* ; Cholesterol ; Cholesterol, HDL ; Humans ; Incidence ; Linear Models ; Male ; Smoke ; Smoking ; Testosterone*

Background: Hypertension is the most important modifiable risk factor for mortality and morbidity in chronic kidney disease and coronary artery syndrome. The effect of hypertension prior to percutaneous coronary intervention (PCI) on the development of end-stage renal disease (ESRD) is unknown. Methods: We used nationally representative data from the Korean National Health Insurance System—140,164 subjects were enrolled during 2010–2015; they were free of ESRD at enrolment, underwent PCI, and were followed up until 2017. Blood pressure (BP) was measured within at least 2 years prior to PCI. The primary outcome was the development of ESRD. Results: During a median follow-up of 5.4 years, 2,082 participants (1.5%) developed ESRD. The highest systolic BP group (>160 mmHg) showed a higher hazard ratio (3.69; 95% confidence interval, 2.61–5.23) than the reference group (110–119 mmHg). Similar results were observed in the highest diastolic BP group (>120 mmHg), which showed a higher hazard ratio than the reference group (70–79 mmHg). However, ESRD risk showed a J-shaped relationship with baseline systolic and diastolic BP at 113 and 74 mmHg in diabetes mellitus subgroup, respectively, after adjustment for potential confounders. Conclusion Our study showed that a high systolic or diastolic BP prior to PCI was independently associated with an increased incidence of ESRD.

Background/Aims: Despite recent improvements in the quality of life of patients with systemic lupus erythematosus (SLE), osteoporosis, and osteoporotic fractures are one of the major complications of SLE. Furthermore, limited data are available on the incidence and predictor of osteoporotic fractures in Korean patients with SLE. Herein, we aimed to assess the incidence and risk factors for osteoporotic fractures in Korean SLE patients compared to those without SLE. Methods: SLE patients aged ≥ 40 years (n = 10,434; mean age, 51.3 ± 9.1 years;women, 89.7%) were selected from the Korean National Health Insurance Service database, spanning a period from 2008 to 2014. Age- and sex-matched controls (n = 52,170) were randomly sampled in a 5:1 ratio from non-SLE individuals. The primary outcome was the first occurrence of osteoporotic fracture. Results: The incidence of osteoporotic fractures was significantly higher in the SLE patients (19.085 per 1,000 person-years) than in matched controls (6.530 per 1,000 person-years). According to the multivariable Cox proportional analysis, patients with SLE exhibited a higher osteoporotic fracture rate than the control group (hazards ratio, 2.964; 95% confidence interval, 2.754 to 3.188), even after adjustment for confounding variables. In the subgroup analysis, male SLE patients or SLE patients aged 40 to 65 years were associated with a higher osteoporotic fracture rate than women SLE patients or SLE patients aged ≥ 65 years, respectively. Conclusions We found a 2.964-fold increased risk of osteoporotic fracture in SLE patients compared to age- and sex-matched non-SLE controls. Male or middle-aged SLE patients had a relatively higher fracture risk among patients with SLE.

Background/Aims: The aim of this study was to evaluate the trend of incidence and prevalence of systemic lupus erythematosus (SLE) in South Korea from 2005 to 2015. Methods: From 2005 to 2015, individuals with SLE were identified from the National Health Insurance database, which records information on almost all Koreans. SLE was defined according to the International Classification of Diseases, 10th revision (ICD-10), code M32. The incidence was calculated per 100,000 person-years. The prevalence was calculated per 100,000 people and stratified by year, age group, sex, region, and income. Results: The annual prevalence of SLE increased slightly from 21.25/100,000 people in 2005 to 35.45/100,000 people in 2015. In contrast, the annual incidence of SLE decreased slightly from 5.42/100,000 person-years in 2005 to 3.6/100,000 person-years in 2015. The prevalence and incidence of SLE were 10- and 6-fold higher in women than in men, respectively. The peak age of prevalence and incidence was 30 to 39 years in 2005; in 2015, the peak age of prevalence was 30 to 49 years and of incidence was 20 to 49 years. Regional variation was observed in both incidence and prevalence of SLE. Jeju province showed the highest prevalence of SLE (44.54/100,000 person-years), and Gwangju province showed the highest incidence of SLE (6.98/100,000 person-years) in 2015. The income status did not affect the prevalence or incidence of SLE except in patients without income who received medical aid. Conclusions The incidence of SLE has declined, but the prevalence has increased in Korea in recent years. Peak age of SLE trend to right shift in Korea.

Several studies have reported that depression is prevalent in patients with diabetes or chronic kidney disease. However, the relationship between weight changes and the risk of depression has not been elucidated in patients with diabetic kidney disease (DKD). Methods: From the Korean National Health Insurance Service database, we selected 67,866 patients with DKD and body weight data from two consecutive health examinations with a 2-year interval between 2009 and 2012. Weight change over 2 years was categorized into five groups: ≥–10%, <–10% to ≥–5%, <–5% to <5%, ≥5% to <10%, and ≥10%. The occurrence of depression was monitored via the codes of International Statistical Classification of Diseases, 10th revision through the end of 2018. Results: During the 5.24-year follow-up, 17,023 patients with DKD developed depression. Weight change and the risk of depression had a U-shaped relationship: patients with ≥–10% weight change (hazard ratio [HR], 1.12) and those with ≥10% weight change (HR, 1.11) showed higher HRs for depression than those with <–5% to <5% weight change, even after adjusting for several confounding factors. In the subgroup analyses, the risk of depression tended to increase as weight gain or weight loss increased in all subgroups. Conclusion: Both weight loss and weight gain increased the risk of depression in patients with DKD.

Background/Aims: The obesity paradox has been known in end-stage renal disease (ESRD). However, the effect of body mass index (BMI) or waist circumference (WC) prior to percutaneous coronary intervention (PCI) on the development of ESRD is not clear. Methods: Using nationally representative data from the Korean National Health Insurance System, we enrolled 140,164 subjects without ESRD at enrolment who underwent PCI between 2010 and 2015, and were followed-up until 2017. Patients were stratified into five levels based on their baseline BMI and six levels based on their WC with 5-cm increments. BMI and WC were measured at least 2 years prior to PCI. The primary outcome was the development of ESRD. Results: During a median follow-up of 5.4 years, 2,082 (1.49%) participants developed ESRD. The underweight group (hazard ratio [HR], 1.331; 95% confidence interval [CI], 0.955 to 1.856) and low WC (< 80/< 75) (HR, 1.589; 95% CI, 1.379 to 1.831) showed the highest ESRD risk and the BMI 25 to 30 group showed the lowest ESRD risk (HR, 0.604; 95% CI, 0542 to 0.673) in all participants after adjusting for all covariates. In the subgroup analysis for diabetes mellitus (DM) duration, WC < 85/80 cm (men/women) increased ESRD risk in only the DM group (DM < 5 years and DM ≥ 5 years) compared to the reference group (85–90/80–85 of WC), but not the normal or impaired fasting glucose group. Conclusions Low WC prior to PCI showed an increased ESRD risk in patients with DM undergoing PCI as compared to those without DM.

BACKGROUND: Peritoneal mesothelial cells are the most important intraperitoneal cells quantitatively and have the capability to secret different types of substances. It may therefore be essential to have information on the mesothelial cell mass during peritoneal dialysis. Cancer Antigen 125 (CA125) is a 22KDa glycoprotein which is a clinically useful tumor marker of non-mucinous epithelial ovarian carcinoma. Recently, other cells including pleural and peritoneal mesothelial cell have been proved to express CA125. This study was undertaken to determine whether CA125 can be used as a marker of mesothelial cell mass in clinically stable 39 CAPD patients. METHODS: We checked serum and peritoneal dialysate CA125 level, D/P creatinine and D/Do glucose after 4 hours dwell in 39 stable continuous ambulatory CAPD patients. RESULTS: No statistically significant correlation was seen among the patient's age, sex, serum and dialysate levels of CA125. The dialysate CA125 levels correlated with the duration of CAPD, negatively (r=-0.345, p=0.039) and a significant positive correlation was seen between the duration of CAPD and D/Do glucose at 4 hours (r=0.523, p=0.001). But there were not a correlation between the dialysate CA125 levels and D/P creatinine after 4 hours dwell nor between the dialysate CA125 levels and D/Do glucose after 4 hours dwell. CONCLUSION: Although the duration of CAPD affects CA125 levels in dialysate, no specific alteration in peritoneal membrance transport properties can be detected or predicted by changes in dialysate concentration of CA125. However longitudinal follow-up of changes in concentration of dialysate CA125 may be useful in evaluating mesothelial cell mass in stable CAPD patients.Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Korea.
Creatinine ; Follow-Up Studies ; Glucose ; Glycoproteins ; Gwangju ; Humans ; Internal Medicine ; Jeollanam-do ; Korea ; Peritoneal Dialysis ; Peritoneal Dialysis, Continuous Ambulatory* ; Schools, Medical

The infectious complications after renal transplantation remain as an important causes of both mortality and graft loss. The lung is the most common target for post-transplant infection. We analyzed the causative agents, treatments and outcomes of post-transplant pulmonary infections. From 1990 to 1998, 192 renal allografts were performed at Hallym University Hospital. Seven cases (3.6%) of 5 males and 2 females developed serious pulmonary infections and required hospitalization. The mean age was 42.6 years. The onsets of pulmonary infections were from a month to 6 months in 3 cases, from 6 months to a year in one case and after a year in 3 cases. Triple therapy regimen was used in 4 cases as an immunosuppression therapy. Acute rejections developed in 6 cases. Causative organisms were Cytomegalovirus in 2 cases, Mycobacteria in 2 cases, Aspergillus in a case, Nocardia in a case and unknown in a case. Despite appropriate antibiotics, four patients did not respond to the treatment and died. The early recognition of infection and appropriate therapy is important to reduce fatal consequence.
Allografts ; Anti-Bacterial Agents ; Aspergillus ; Cytomegalovirus ; Female ; Hospitalization ; Humans ; Immunosuppression ; Kidney Transplantation* ; Kidney* ; Lung ; Male ; Mortality ; Nocardia ; Transplants

PURPOSE: Anomalies in the thyroglossal duct are the most common midline, or paramedian cervical lesions of congenital origin. Presenting as a thyroglossal duct cyst (TGDC) or a thyroglossal duct sinus (TGDS), they are found in all age groups. This clinical study was intended to elucidate the clinical characteristics, and the outcomes, of surgical treatment of these anomalies. METHODS: Between January 1992 and May 2002, 91 patients underwent surgery for a TGDC or a TGDS at 4 hospitals affiliated to Hallym University. The demographics of the patients, the clinical characteristics of the lesions, and the outcomes of the treatments were retrospectively evaluated. These characteristics were evaluated according to age groups; younger than 15 (38 patients) and older than 15 (53 patients) years. RESULTS: The male to female ratio was 1.67: 1 (It is better to give the actual figures.), with the first decade showing the highest incidence in the age distribution (33%). Painless masses (83.6%) were the most common presenting symptom, with most symptoms having been manifest for less than 1 year (67%). TGDCs were 90% and TGDSs were 10%. There were 62 cases of infrahyoid and 18 of suprahyoid lesions, with 80 cases on the midline and 11 on the paramedian within 2 cm from the midline. Of the paramedian lesions, 2 cases were in the younger group and 9 were in the older group. This tendency of laterality in the location by age group showed no statistical significance (p=0.172). All the patients underwent a Sistrunk operation, and one experienced a recurrence. CONCLUSION: This study justified the Sistrunk operation as the treatment of choice for anomalies of the thyroglossal duct. The lateral lesions occurred in the old age groups more frequently. A careful approach is needed with paramedian cervial lesions in adults to avoid the loss of the proper treatment of possible hidden congenital lesions.
Adult ; Age Distribution ; Demography ; Female ; Humans ; Incidence ; Male ; Recurrence ; Retrospective Studies ; Thyroglossal Cyst*