Background: The influence of airborne particulate matter (PM) on skin has primarily been studied in patients with skin diseases such as atopic dermatitis. Recently, the effect of PM on healthy human skin has gained attention. Objective: To evaluate the relationship between PM concentration and objective skin changes in healthy subjects. Methods: This prospective study enrolled 25 healthy volunteers without any skin disease. Data regarding daily meteorological parameters and air pollution were collected during a high-PM period and a low-PM period for 14 days. Environmental and lifestyle factors that might influence skin conditions of subjects were also collected during the study period. Biophysical parameters of the skin such as transepidermal water loss (TEWL), hydration, erythema index, and melanin index were measured.Pores, wrinkles, sebum, and skin tone were evaluated using a facial analysis system. Results: Mean TEWL value during the high-PM period was significantly higher than that during the low-PM period (10.16 g/m2 /h vs. 5.99 g/m2 /h; p=0.0005). Mean erythema index was significantly higher in the highPM period than that in the low-PM period (4.3 vs. 3.42; p=0.038). For facial analysis system indices, uniformity of skin tone was higher in the low-PM period than that in the high-PM period (p＜0.0001). In addition, with increasing PM 10 and PM2.5, TEWL also showed increase when other environmental components were constant (regression coefficient [RC]=0.1529, p＜0.0001 for PM10 ; RC=0.2055, p=0.0153 for PM 2.5). Conclusion Increased PM concentrations may contribute to disturbed barrier function, increased facial erythema, and uneven skin tone even in healthy human skin.

Background: The influence of airborne particulate matter (PM) on skin has primarily been studied in patients with skin diseases such as atopic dermatitis. Recently, the effect of PM on healthy human skin has gained attention. Objective: To evaluate the relationship between PM concentration and objective skin changes in healthy subjects. Methods: This prospective study enrolled 25 healthy volunteers without any skin disease. Data regarding daily meteorological parameters and air pollution were collected during a high-PM period and a low-PM period for 14 days. Environmental and lifestyle factors that might influence skin conditions of subjects were also collected during the study period. Biophysical parameters of the skin such as transepidermal water loss (TEWL), hydration, erythema index, and melanin index were measured.Pores, wrinkles, sebum, and skin tone were evaluated using a facial analysis system. Results: Mean TEWL value during the high-PM period was significantly higher than that during the low-PM period (10.16 g/m2 /h vs. 5.99 g/m2 /h; p=0.0005). Mean erythema index was significantly higher in the highPM period than that in the low-PM period (4.3 vs. 3.42; p=0.038). For facial analysis system indices, uniformity of skin tone was higher in the low-PM period than that in the high-PM period (p＜0.0001). In addition, with increasing PM 10 and PM2.5, TEWL also showed increase when other environmental components were constant (regression coefficient [RC]=0.1529, p＜0.0001 for PM10 ; RC=0.2055, p=0.0153 for PM 2.5). Conclusion Increased PM concentrations may contribute to disturbed barrier function, increased facial erythema, and uneven skin tone even in healthy human skin.

Drug-induced vasculitis is an inflammation of small-sized blood vessel caused by the use of drugs. It accounts for approximately 10% of acute cutaneous vasculitis. Propylthiouracil, hydralazine, and allopurinol have been widely known as causative agents. The most common clinical feature of drug-induced vasculitis is palpable purpura on lower extremities. A 66-year-old Korean female presented with erythematous nodules on upper chest and back. She had been on medication for multiple myeloma. Laboratory results showed neutropenia. After a single injection of filgrastim (recombinant granulocyte colony-stimulating factor), she developed cutaneous lesions with concurrent increase in absolute neutrophil count. A skin biopsy revealed leukocytoclastic vasculitis. After discontinuation of filgrastim injection, her skin lesions disappeared spontaneously.

PURPOSE: The aim of this study is to assess the accuracy of alignment determined by patient-specific instrumentation system in total knee arthroplasty (TKA). MATERIALS AND METHODS: Twenty-seven TKAs using patient-specific instrument were reviewed. The intraoperative pin location determined by the patient-specific guide was recorded using imageless navigation software. Data recorded included tibial coronal alignment and posterior slope, femoral coronal alignment and sagittal alignment, and transepicondylar axis. A discrepancy within ±3° in each plane was considered an acceptable result. RESULTS: On the tibia, an acceptable alignment was obtained in 24 (88.1%) in the coronal plane and 21 (77.8%) in the sagittal plane. On the femur, a satisfactory alignment was obtained in 25 (92.6%) in the coronal plane and 24 (88.1%) in the sagittal plane. Based on the transepicondylar axis, a satisfactory alignment was obtained in 23 (85.1%). CONCLUSIONS: Satisfactory alignment was obtained in more than 85% of each plane of the femur and in the coronal plane of the tibia and relative to the transepicondylar axis. Sufficeint experience and precise preoperative planning are required to improve the accuracy of sagittal alignment of the tibia.
Arthroplasty ; Arthroplasty, Replacement, Knee ; Femur ; Knee ; Tibia

No abstract available.
Mycosis Fungoides

No abstract available.
Blister ; Eyebrows ; Hair ; Suction ; Transplants ; Vitiligo

Background: Programmed death 1 inhibitors enhance pre-existing immune responses by directly blocking anti-programmed cell death receptor-1. They have been widely used these days, but little is known about the dermatologic side effects and the factors affecting the response to therapy. Objective: To determine the association between dermatologic side effects and oncologic response to programmed death 1 inhibitors and to investigate the factors affecting the response to programmed death 1 inhibitors. Methods: We retrospectively reviewed the records of patients with melanoma who were referred to the dermatology department for their newly arising skin lesions after treatment with pembrolizumab and nivolumab from January 1, 2015, to April 30, 2019. The oncologic outcomes of the patients were determined by medical records from the hemato-oncology department. Sex, stage, dermatologic side effects, and age at the time of initial diagnosis were analyzed as the factors affecting oncologic outcomes. Progression-free survival was analyzed between the patients with and those without dermatologic side effects. Results: Of the 177 patients screened for the study, 14 were referred to the dermatology department for cutaneous side effects. There was no difference between the dermatologic side effect group and the non-dermatologic side effect group in terms of oncologic outcome and progression-free survival. Sex and stage significantly increased the risk of disease progression with pembrolizumab treatment. Conclusion Although it has been reported that there could be a strong association between dermatologic side effects and oncologic outcomes, we were not able to reach the same conclusion among melanoma patients.

Background: Programmed death 1 inhibitors enhance pre-existing immune responses by directly blocking anti-programmed cell death receptor-1. They have been widely used these days, but little is known about the dermatologic side effects and the factors affecting the response to therapy. Objective: To determine the association between dermatologic side effects and oncologic response to programmed death 1 inhibitors and to investigate the factors affecting the response to programmed death 1 inhibitors. Methods: We retrospectively reviewed the records of patients with melanoma who were referred to the dermatology department for their newly arising skin lesions after treatment with pembrolizumab and nivolumab from January 1, 2015, to April 30, 2019. The oncologic outcomes of the patients were determined by medical records from the hemato-oncology department. Sex, stage, dermatologic side effects, and age at the time of initial diagnosis were analyzed as the factors affecting oncologic outcomes. Progression-free survival was analyzed between the patients with and those without dermatologic side effects. Results: Of the 177 patients screened for the study, 14 were referred to the dermatology department for cutaneous side effects. There was no difference between the dermatologic side effect group and the non-dermatologic side effect group in terms of oncologic outcome and progression-free survival. Sex and stage significantly increased the risk of disease progression with pembrolizumab treatment. Conclusion Although it has been reported that there could be a strong association between dermatologic side effects and oncologic outcomes, we were not able to reach the same conclusion among melanoma patients.

We investigated the association between nonalcoholic fatty liver disease (NAFLD) and plasma adiponectin levels and insulin resistance. We recruited study subjects among one hundred and eighty one persons who were examined abdominal ultrasound at routine screening tests. A standard interview (consumption of alcohol and medical history), physical examination (height, weight, waist circumference, and blood pressure), and biochemical study (lipid parameters, aminotransferases, fasting plasma glucose, fasting insulin, and plasma adiponectin) were performed. Subjects who consumed alcohol more than moderate, evidence of viral hepatitis, toxic hepatitis, and serious cardiac, renal, or hepatic disease were excluded. Thirty-eight NAFLD patients and 53 control subjects diagnosed by ultrasound were finally analyzed. The plasma adiponectin level was significantly correlated with HDL-cholesterol (r=0. 38, p<0.001), triglycerides (r=-0.22, p=0.04), fasting insulin (r=-0.37, p<0.01), and insulin resistance by homeostasis model of assessment-insulin resistance (HOMAIR) (r=-0.39, p<0.01), after adjusting for age, sex, and adiposity. Multiple logistic regression analysis indicated that HOMA-IR was a significant predictor of having NAFLD (odds ratio [OR]=2.38; 95% confidence interval [CI]: 1.52-5.74), while adiponectin had a protective effect against NAFLD (OR=0.22; 95% CI: 0.09-0.55). We demonstrated that hypoadiponectinemia and insulin resistance are associated with NAFLD independent of obesity.
Adult ; Alanine Transaminase/blood ; Aspartate Aminotransferases/blood ; Blood Glucose/metabolism ; Blood Pressure ; Body Mass Index ; Cholesterol/blood ; Comparative Study ; Fatty Liver/*blood/physiopathology ; Female ; Humans ; Insulin Resistance/*physiology ; Intercellular Signaling Peptides and Proteins/*blood ; Logistic Models ; Male ; Middle Aged ; Multivariate Analysis ; Triglycerides/blood