1.A Case of Juvenile Pityriasis Rubra Pilaris Clinically Improved with Cyclosporine.
Hyunseok CHOI ; Sung Soo HAN ; Hyung Kwon PARK ; Jung Woo LEE ; Hee Joon YU ; Joung Soo KIM
Korean Journal of Dermatology 2017;55(5):318-319
No abstract available.
Cyclosporine*
;
Pityriasis Rubra Pilaris*
;
Pityriasis*
2.Androgen deprivation therapy is associated with decreased second primary lung cancer risk in the United States veterans with prostate cancer
Kyungsuk JUNG ; Jong Chul PARK ; Hyunseok KANG ; Johann Christoph BRANDES
Epidemiology and Health 2018;40(1):2018040-
OBJECTIVES: We investigated whether androgen deprivation therapy (ADT) in prostate cancer patients was associated with a decreased risk for second primary lung cancer in US veterans.METHODS: Prostate cancer diagnoses in the US Veterans Affairs Cancer Registry between 1999 and 2008 were identified. Use of hormonal therapy and diagnoses of second primary lung cancer were determined from the registry. Synchronous prostate and lung cancers, defined as 2 diagnoses made within 1 year, were excluded from the analysis. Cancer-free survival was estimated using the Kaplan-Meier method and hazard ratios were estimated using Cox proportional hazard models.RESULTS: Among the 63,141 identified patients with prostate cancer, 18,707 subjects were eligible for the study. Hormonal therapy was used in 38% of patients and the median follow-up period was 28 months. ADT use was associated with longer lung cancer-free survival in prostate cancer patients (log-rank p=0.01). After adjusting for age, race, smoking and prostate cancer stage, ADT use was associated with decreased lung cancer risk by 15, 21, and 24% after 1, 2, and 3 years, respectively.CONCLUSIONS: ADT in prostate cancer patients may be associated with decreased second primary lung cancer risk among US veterans.
Androgen Antagonists
;
Continental Population Groups
;
Diagnosis
;
Follow-Up Studies
;
Humans
;
Lung Neoplasms
;
Lung
;
Methods
;
Proportional Hazards Models
;
Prostate
;
Prostatic Neoplasms
;
Smoke
;
Smoking
;
United States
;
Veterans
3.Androgen deprivation therapy is associated with decreased second primary lung cancer risk in the United States veterans with prostate cancer.
Kyungsuk JUNG ; Jong Chul PARK ; Hyunseok KANG ; Johann Christoph BRANDES
Epidemiology and Health 2018;40(1):e2018040-
OBJECTIVES: We investigated whether androgen deprivation therapy (ADT) in prostate cancer patients was associated with a decreased risk for second primary lung cancer in US veterans. METHODS: Prostate cancer diagnoses in the US Veterans Affairs Cancer Registry between 1999 and 2008 were identified. Use of hormonal therapy and diagnoses of second primary lung cancer were determined from the registry. Synchronous prostate and lung cancers, defined as 2 diagnoses made within 1 year, were excluded from the analysis. Cancer-free survival was estimated using the Kaplan-Meier method and hazard ratios were estimated using Cox proportional hazard models. RESULTS: Among the 63,141 identified patients with prostate cancer, 18,707 subjects were eligible for the study. Hormonal therapy was used in 38% of patients and the median follow-up period was 28 months. ADT use was associated with longer lung cancer-free survival in prostate cancer patients (log-rank p=0.01). After adjusting for age, race, smoking and prostate cancer stage, ADT use was associated with decreased lung cancer risk by 15, 21, and 24% after 1, 2, and 3 years, respectively. CONCLUSIONS: ADT in prostate cancer patients may be associated with decreased second primary lung cancer risk among US veterans.
Androgen Antagonists
;
Continental Population Groups
;
Diagnosis
;
Follow-Up Studies
;
Humans
;
Lung Neoplasms*
;
Lung*
;
Methods
;
Proportional Hazards Models
;
Prostate*
;
Prostatic Neoplasms*
;
Smoke
;
Smoking
;
United States*
;
Veterans*
4.Androgen deprivation therapy is associated with decreased second primary lung cancer risk in the United States veterans with prostate cancer
Kyungsuk JUNG ; Jong Chul PARK ; Hyunseok KANG ; Johann Christoph BRANDES
Epidemiology and Health 2018;40():e2018040-
OBJECTIVES:
We investigated whether androgen deprivation therapy (ADT) in prostate cancer patients was associated with a decreased risk for second primary lung cancer in US veterans.
METHODS:
Prostate cancer diagnoses in the US Veterans Affairs Cancer Registry between 1999 and 2008 were identified. Use of hormonal therapy and diagnoses of second primary lung cancer were determined from the registry. Synchronous prostate and lung cancers, defined as 2 diagnoses made within 1 year, were excluded from the analysis. Cancer-free survival was estimated using the Kaplan-Meier method and hazard ratios were estimated using Cox proportional hazard models.
RESULTS:
Among the 63,141 identified patients with prostate cancer, 18,707 subjects were eligible for the study. Hormonal therapy was used in 38% of patients and the median follow-up period was 28 months. ADT use was associated with longer lung cancer-free survival in prostate cancer patients (log-rank p=0.01). After adjusting for age, race, smoking and prostate cancer stage, ADT use was associated with decreased lung cancer risk by 15, 21, and 24% after 1, 2, and 3 years, respectively.
CONCLUSIONS
ADT in prostate cancer patients may be associated with decreased second primary lung cancer risk among US veterans.
5.A Heuristic Algorithm to Find All Normalized Local Alignments Above Threshold.
Sangtae KIM ; Jeong Seop SIM ; Heejin PARK ; Kunsoo PARK ; Hyunseok PARK ; Jeong Sun SEO
Genomics & Informatics 2003;1(1):25-31
Local alignment is an important task in molecular biology to see if two sequences contain regions that are similar. The most popular approach to local alignment is the use of dynamic programming due to Smith and Waterman, but the alignment reported by the Smith-Waterman algorithm has some undesirable properties. The recent approach to fix these problems is to use the notion of normalized scores for local alignments by Arslan, Egecioglu and Pevzner. In this paper we consider the problem of finding all local alignments whose normalized scores are above a given threshold, and present a fast heuristic algorithm. Our algorithm is 180-330 times faster than Arslan et al.''s for sequences of length about 120 kbp and about 40-50 times faster for sequences of length about 30 kbp.
Molecular Biology
6.Short-Term Pain Relief by Repetitive Peripheral Magnetic Stimulation in Patients with Musculoskeletal Pain: A Pilot Study
Joonhyun PARK ; Hyunseok KWAK ; Wookyung PARK ; MinYoung KIM ; Kyunghoon MIN
Clinical Pain 2020;19(1):16-22
Objective:
Recent studies have shown that repetitive peripheral magnetic stimulation (rPMS) reduces pain in various conditions. This pilot study aimed to investigate the effects of rPMS depending on the pain characteristics. Method: Adult patients aged 19∼85 years evaluated at our institution between September 1, 2017 and February 28, 2018 for subacute to chronic musculoskeletal pain equivalent to a numeric rating scale of 3 or higher for at least one month were enrolled. Pain scores as determined using a numeric rating scale at baseline and at the end of treatment were set as the primary outcome. Additionally, we classified the pain into nociceptive, intermediate, or neuropathic pain using the PainDETECT questionnaire and compared the responsiveness to rPMS according to the type of pain.
Results:
The average pain scores significantly decreased after the 2-week rPMS treatment in all enrolled subjects (p<0.001). There was no statistically significant difference in pain reduction between groups divided by PainDETECT questionnaire.
Conclusion
This study suggests that rPMS could safely relieve various types of pain.
7.Short-Term Pain Relief by Repetitive Peripheral Magnetic Stimulation in Patients with Musculoskeletal Pain: A Pilot Study
Joonhyun PARK ; Hyunseok KWAK ; Wookyung PARK ; MinYoung KIM ; Kyunghoon MIN
Clinical Pain 2020;19(1):16-22
Objective:
Recent studies have shown that repetitive peripheral magnetic stimulation (rPMS) reduces pain in various conditions. This pilot study aimed to investigate the effects of rPMS depending on the pain characteristics. Method: Adult patients aged 19∼85 years evaluated at our institution between September 1, 2017 and February 28, 2018 for subacute to chronic musculoskeletal pain equivalent to a numeric rating scale of 3 or higher for at least one month were enrolled. Pain scores as determined using a numeric rating scale at baseline and at the end of treatment were set as the primary outcome. Additionally, we classified the pain into nociceptive, intermediate, or neuropathic pain using the PainDETECT questionnaire and compared the responsiveness to rPMS according to the type of pain.
Results:
The average pain scores significantly decreased after the 2-week rPMS treatment in all enrolled subjects (p<0.001). There was no statistically significant difference in pain reduction between groups divided by PainDETECT questionnaire.
Conclusion
This study suggests that rPMS could safely relieve various types of pain.
8.Epidemiologic and Clinical Features of Campylobacter Enteritis Before and During COVID-19 in Korea
Hyunseok CHO ; Sang Hoon LEE ; Jung Ho LEE ; Sung Joon LEE ; Sung Chul PARK
Journal of Korean Medical Science 2023;38(9):e67-
Background:
With the increase in meals at home due to coronavirus disease 2019 (COVID-19), the pattern and incidence of enteritis seemed to change. Some types of enteritis, such as Campylobacter enteritis, appear to have increased. Our study aimed to evaluate the change in the trend of enteritis, especially Campylobacter enteritis, before COVID-19 (2016– 2019) and at the present time during COVID-19 in South Korea.
Methods:
We analyzed data from the Health Insurance Review and Assessment Service. From 2016 to 2020, the International Classification of Diseases codes related to enteritis were examined to distinguish bacterial and viral enteritis and the trends of each were analyzed.The aspects of enteritis, before and after the COVID-19 outbreak, were compared.
Results:
Both bacterial and viral enteritis declined in all age groups from 2016 to 2020 (P< 0.001). In 2020, the reduction rate of viral enteritis was higher than that of bacterial enteritis. However, unlike other causes of enteritis, even after COVID-19, Campylobacter enteritis increased in all age groups. An increase of Campylobacter enteritis in 2020 was particularly noticeable in children and adolescents. The prevalence of viral and bacterial enteritis was higher in urban areas than in rural areas (P < 0.001). Campylobacter enteritis was more common in the rural areas (P< 0.001).
Conclusion
Although the prevalence of bacterial and viral enteritis have decreased in COVID-19, Campylobacter enteritis has increased in all age groups and in rural areas compared to urban areas. Recognizing that the trend of Campylobacter enteritis before and during COVID-19 is helpful for future public health measures and interventions.
9.Modulation of Pro-inflammatory and Anti-inflammatory Cytokines in the Fat by an Aloe Gel-based Formula, QDMC, Is Correlated with Altered Gut Microbiota
Jinho AN ; Heetae LEE ; Sungwon LEE ; Youngcheon SONG ; Jiyeon KIM ; Il Ho PARK ; Hyunseok KONG ; Kyungjae KIM
Immune Network 2021;21(2):e15-
Abnormal inflammatory responses are closely associated with intestinal microbial dysbiosis. Oral administration of Qmatrix-diabetes-mellitus complex (QDMC), an Aloe gel-based formula, has been reported to improve inflammation in type 2 diabetic mice; however, the role of the gut microbiota in ameliorating efficacy of QDMC remains unclear. We investigated the effect of QDMC on the gut microbiota in a type 2 diabetic aged mouse model that was administered a high-fat diet. Proinflammatory (TNF-α and IL-6) and anti-inflammatory (IL-4 and IL-10) cytokine levels in the fat were normalized via oral administration of QDMC, and relative abundances of Bacteroides, Butyricimonas, Ruminococcus, and Mucispirillum were simultaneously significantly increased. The abundance of these bacteria was correlated to the expression levels of cytokines. Our findings suggest that the immunomodulatory activity of QDMC is partly mediated by the altered gut microbiota composition.
10.Magnetic Resonance-Based Grading of Psoas and Paraspinal Muscle Edema: Is It Helpful in Diagnosing Lumbar Transverse Process Fractures?
Hyunseok JEONG ; Wook JIN ; Yong Sung PARK ; Seong Jong YUN ; So Young PARK ; Ji Seon PARK ; Kyung Nam RYU
Journal of the Korean Radiological Society 2018;79(4):208-217
PURPOSE:
To determine the reliability of edema grading of the psoas and paraspinal muscles on axial T2-weighted magnetic resonance (MR) image (T2WI) for the detection of lumbar transverse process (TP) fractures.
MATERIALS AND METHODS:
A retrospective review of lumbar spine MR images of 56 patients (mean age = 56.1 years, age range = 17–87 years, male:female = 28:28) was conducted by 2 radiologists. Based on the axial T2WI at the disc level, the paraspinal muscles were classified into 4 compartments and muscle edema (increased signal intensity on axial T2WI) grading performed for each quadrant.
RESULTS:
A total of 486 TPs (with fracture: 24, without fracture: 462) of 56 patients were evaluated. Muscle edema grade showed moderate correlation with the presence of TP fracture (Ï = 0.466). When the total score of muscle edema was 2.50, the receiver operating characteristic curve showed a sensitivity of 72.7% and a specificity of 90.7%. A higher edema grade had a significantly higher probability of concomitant TP fracture [any sided (total): odds ratio = 1.704 (95% confidence interval = 1.410–2.060)].
CONCLUSION
Edema grading of the psoas and paraspinal muscles on axial T2WI of lumbar spine can be helpful in the detection of TP fracture.