1.Intermittent Fasting Modulates Immune Response by Generating Tregs via TGF-β Dependent Mechanisms in Obese Mice with Allergic Contact Dermatitis
Sang-Chul HAN ; Jung-Il KANG ; Youn Kyung CHOI ; Hye-Jin BOO ; Weon-Jong YOON ; Hee-Kyoung KANG ; Eun-Sook YOO
Biomolecules & Therapeutics 2024;32(1):136-145
People with obesity maintain low levels of inflammation; therefore, their exposure to foreign antigens can trigger an excessive immune response. In people with obesity or allergic contact dermatitis (ACD), symptoms are exacerbated by a reduction in the number of regulatory T cells (Tregs) and IL-10/TGF-β–modified macrophages (M2 macrophages) at the inflammatory site. Benefits of intermittent fasting (IF) have been demonstrated for many diseases; however, the immune responses regulated by macrophages and CD4+ T cells in obese ACD animal models are poorly understood. Therefore, we investigated whether IF suppresses inflammatory responses and upregulates the generation of Tregs and M2 macrophages in experimental ACD animal models of obese mice. The IF regimen relieved various ACD symptoms in inflamed and adipose tissues. We showed that the IF regimen upregulates Treg generation in a TGF-β-dependent manner and induces CD4+ T cell hypo-responsiveness. IF-M2 macrophages, which strongly express TGF-β and inhibit CD4+ T cell proliferation, directly regulated Treg differentiation from CD4+ T cells. These results indicate that the IF regimen enhances the TGF-β-producing ability of M2 macrophages and that the development of Tregs keeps mice healthy against ACD exacerbated by obesity. Therefore, the IF regimen may ameliorate inflammatory immune disorders caused by obesity.
2.Correlation Between Nitric Oxide and Urodynamics in Men With Bladder Outlet Obstruction
Kang Jun CHO ; Jun Sung KOH ; Jin Bong CHOI ; Sang Hi PARK ; Weon Sun LEE ; Joon Chul KIM
International Neurourology Journal 2022;26(Suppl 1):S15-21
Purpose:
To investigate the correlation between nitric oxide (NO) and urodynamics in men with bladder outlet obstruction (BOO) by analyzing nitric oxide synthase (NOS) in the urothelium.
Methods:
We prospectively enrolled 25 men who planned to undergo surgical treatment for benign prostatic obstruction and identified as BOO in the preoperative urodynamics. Bladder tissue was taken during surgical prostate resection. Expressions of endothelial NOS (eNOS), inducible NOS (iNOS), and neuronal NOS (nNOS) in the urothelium were analyzed, and their correlation with urodynamic parameters was also assessed in all patients. We also compared the expressions of eNOS, iNOS, and nNOS between BOO with detrusor underactivity (DU) group and BOO without DU group.
Results:
In all patients, the level of eNOS positively correlated with maximal flow rate and with maximum cystometric capacity (MCC). The level of iNOS positively correlated with MCC. nNOS levels were positively correlated with detrusor pressure at maximal flow and with bladder contractility index in all patients. The level of eNOS, iNOS, and nNOS did not significantly differ between BOO without DU group and BOO with DU group.
Conclusions
This study suggests that NO was correlated with bladder dysfunction in men with BOO. Particularly, nNOS may reflect the change in detrusor function.
3.Major clinical research advances in gynecologic cancer in 2020
Yoo-Young LEE ; Min Chul CHOI ; Jeong-Yeol PARK ; Dong Hoon SUH ; Jae-Weon KIM
Journal of Gynecologic Oncology 2021;32(4):e53-
In 2020 series, we summarized the major clinical research advances in gynecologic oncology with providing representative figures of the most influential study for 1 of each 3 gynecologic cancers: cervix, ovary, and uterine corpus. Review for cervical cancer covered targeted agents and immune checkpoint inhibitors, adjuvant radiation therapy or concurrent/sequential chemoradiation therapy after radical hysterectomy in early cervical cancer, radical surgery in early cervical cancer; and prevention and screening. Ovarian cancer research included studies of various combinations of poly (ADP-ribose) polymerase inhibitors with chemotherapy, immune checkpoint inhibitors, and/or vascular endothelial growth factor inhibitors according to the clinical setting. For uterine corpus cancer, molecular classification upon which the decision of adjuvant treatments might be based, World Health Organization recommendation of 2-tier grading system (low grade vs. high grade), sentinel lymph node assessment and ovarian preservation in clinically early-stage endometrial cancer were reviewed. Molecular targeted agents including immune checkpoint inhibitors which showed promising anti-tumor activities in advanced/recurrent endometrial cancer were also included in this review.
4.Survey on Perspectives and Treatment Status Regarding Skin Laser Treatment.
Ye Jin LEE ; Sang Hyung LEE ; Jee Ho CHOI ; Chun Wook PARK ; Young Lip PARK ; You Chan KIM ; Sang Hyun CHO ; Dong Youn LEE ; Hoon KANG ; Sang Wook SON ; Jee Bum LEE ; Moon Bum KIM ; Weon Ju LEE ; Woo Young SIM ; Young Chul KYE ; Sung Eun CHANG ; Chang Hun HUH ; Won Serk KIM ; Bang Soon KIM ; Sang Ju LEE ; Sang Jun LEE ; Chan Woo JEONG ; Un Cheol YEO ; Chul Wook KWON ; Mi Woo LEE
Korean Journal of Dermatology 2017;55(1):8-19
BACKGROUND: Skin laser treatment has improved significantly and has become an effective treatment approach for many skin diseases while also having applications for beauty treatments. However, since skin laser transfers energy directly to the skin, the misuse of such treatment may result in permanent damage to skin tissues. OBJECTIVE: This survey of Korean adults, conducted to obtain their perspectives on and their treatment experience with skin laser treatment, will be used to determine the current status of skin laser treatment and to identify necessary changes to ensure proper and safe conduct of skin laser treatment. METHODS: From April 5th to April 12th, 2016, a survey was conducted to obtain information regarding the perspectives and the treatment experience of adults aged 20~59 years. RESULTS: Approximately 50% of the participants had experience with skin laser treatment, and among these, 24.7% had not received treatment at a dermatology clinic. Compared to treatment at a dermatology clinic, the danger of side effects was 1.7 times higher at a non-dermatology clinic, 2 times higher at a skin care shop, and 5.3 times higher at an Oriental medical clinic. Among patients who received skin laser treatment, 16.1% experienced side effects, and among these, 1 out of 4 patients visited a non-dermatologist for treatment of these side effects. CONCLUSION: The results of the survey showed that in order for the public to receive safe and effective skin laser treatment based on professional diagnosis, there is a definitive need to provide correct information to the public and to implement changes to ensure proper understanding of skin laser treatment among this population.
Adult
;
Beauty
;
Dermatology
;
Diagnosis
;
Humans
;
Skin Care
;
Skin Diseases
;
Skin*
5.Position statements on genetic test for peritoneal, ovarian, and fallopian tubal cancers: Korean Society of Gynecologic Oncology (KSGO).
Min Chul CHOI ; Myong Cheol LIM ; Dong Hoon SUH ; Yong Jung SONG ; Tae Joong KIM ; Suk Joon CHANG ; Jae Weon KIM
Journal of Gynecologic Oncology 2016;27(4):e36-
No abstract available.
Fallopian Tube Neoplasms/*genetics
;
Female
;
Genes, BRCA1
;
Genes, BRCA2
;
*Genetic Testing
;
Humans
;
Mutation
;
Ovarian Neoplasms/*genetics
;
Peritoneal Neoplasms/*genetics
;
Republic of Korea
;
Societies, Medical
6.Position statements on genetic test for peritoneal, ovarian, and fallopian tubal cancers: Korean Society of Gynecologic Oncology (KSGO).
Min Chul CHOI ; Myong Cheol LIM ; Dong Hoon SUH ; Yong Jung SONG ; Tae Joong KIM ; Suk Joon CHANG ; Jae Weon KIM
Journal of Gynecologic Oncology 2016;27(4):e36-
No abstract available.
Fallopian Tube Neoplasms/*genetics
;
Female
;
Genes, BRCA1
;
Genes, BRCA2
;
*Genetic Testing
;
Humans
;
Mutation
;
Ovarian Neoplasms/*genetics
;
Peritoneal Neoplasms/*genetics
;
Republic of Korea
;
Societies, Medical
7.The Korean guideline for cervical cancer screening.
Kyung Jin MIN ; Yoon Jae LEE ; Mina SUH ; Chong Woo YOO ; Myong Cheol LIM ; Jaekyung CHOI ; Moran KI ; Yong Man KIM ; Jae Weon KIM ; Jea Hoon KIM ; Eal Whan PARK ; Hoo Yeon LEE ; Sung Chul LIM ; Chi Heum CHO ; Sung Ran HONG ; Ji Yeon DANG ; Soo Young KIM ; Yeol KIM ; Won Chul LEE ; Jae Kwan LEE
Journal of the Korean Medical Association 2015;58(5):398-407
The incidence rate of cervical cancer in Korea is still higher than in other developed countries, notwithstanding the national mass screening program. Furthermore, a new method has been introduced in cervical cancer screening. Therefore, the committee for cervical cancer screening in Korea updated the recommendation statement established in 2002. The new version of the guideline was developed by the committee using evidence-based methods. The committee reviewed the evidence for the benefits and harms of the Papanicolaou test, liquid-based cytology, and human papilloma virus (HPV) testing, and reached conclusions after deliberation. The committee recommends screening for cervical cancer with cytology (papanicolaou test or liquid-based cytology) every three years in women older than 20 years of age (recommendation A). The combination test (cytology with HPV test) is optionally recommended after taking into consideration individual risk or preference (recommendation C). The current evidence for primary HPV screening is insufficient to assess the benefits and harms of cervical cancer screening (recommendation I). Cervical cancer screening can be terminated at the age of 74 years if more than three consecutive negative cytology reports have been confirmed within ten years (recommendation D).
Developed Countries
;
Female
;
Humans
;
Incidence
;
Korea
;
Mass Screening*
;
Papanicolaou Test
;
Papilloma
;
Uterine Cervical Neoplasms*
8.The Korean guideline for cervical cancer screening.
Kyung Jin MIN ; Yoon Jae LEE ; Mina SUH ; Chong Woo YOO ; Myong Cheol LIM ; Jaekyung CHOI ; Moran KI ; Yong Man KIM ; Jae Weon KIM ; Jea Hoon KIM ; Eal Whan PARK ; Hoo Yeon LEE ; Sung Chul LIM ; Chi Heum CHO ; Sung Ran HONG ; Ji Yeon DANG ; Soo Young KIM ; Yeol KIM ; Won Chul LEE ; Jae Kwan LEE
Journal of Gynecologic Oncology 2015;26(3):232-239
The incidence rate of cervical cancer in Korea is still higher than in other developed countries, notwithstanding the national mass-screening program. Furthermore, a new method has been introduced in cervical cancer screening. Therefore, the committee for cervical cancer screening in Korea updated the recommendation statement established in 2002. The new version of the guideline was developed by the committee using evidence-based methods. The committee reviewed the evidence for the benefits and harms of the Papanicolaou test, liquid-based cytology, and human papillomavirus (HPV) testing, and reached conclusions after deliberation. The committee recommends screening for cervical cancer with cytology (Papanicolaou test or liquid-based cytology) every three years in women older than 20 years of age (recommendation A). The cervical cytology combined with HPV test is optionally recommended after taking into consideration individual risk or preference (recommendation C). The current evidence for primary HPV screening is insufficient to assess the benefits and harms of cervical cancer screening (recommendation I). Cervical cancer screening can be terminated at the age of 74 years if more than three consecutive negative cytology reports have been confirmed within 10 years (recommendation D).
Adult
;
Age Factors
;
Aged
;
Early Detection of Cancer/adverse effects/*methods/standards
;
Evidence-Based Medicine
;
False Positive Reactions
;
Female
;
Humans
;
Hysterectomy
;
Middle Aged
;
Papillomavirus Infections/diagnosis
;
Papillomavirus Vaccines
;
Patient Selection
;
Pregnancy
;
Pregnancy Complications, Neoplastic/diagnosis
;
Republic of Korea
;
Review Literature as Topic
;
Uterine Cervical Neoplasms/*diagnosis
;
Vaginal Smears/adverse effects/methods/standards
;
Young Adult
9.Association between Obesity Indices and MMSE-K in Elderly.
Hyun Joo LEE ; Hee Yeon CHOI ; Kyu Wol YUN ; Young Chul KIM ; Weon Jeong LIM ; Ji Hyun KIM ; Soo In KIM
Journal of Korean Neuropsychiatric Association 2013;52(6):447-453
OBJECTIVES: The aim of this study was to investigate associations between obesity indices and cognitive functions using data from individuals older than 65 years in South Korea. METHODS: A total of 151 Koreans older than 65 years participated in this study voluntarily. Obesity was determined using body mass index (BMI) and waist-hip ratio (WHR). Cognitive function was evaluated using the Korean version of the Mini-Mental State Examination (MMSE-K). The participants were divided into four groups according to BMI : underweight (BMI<18.5), normal (18.5< or =BMI<23.0), overweight (23.0< or =BMI<25.0), and obesity (BMI> or =25.0), and two groups according to WHR : normal (WHR<18.5) and abdominal obesity (WHR> or =0.8). Baseline characteristics were compared among different BMI or WHR subgroups. RESULTS: Older age and smoking habits showed an association with poor cognitive function. Among different BMI groups, the overweight group had the highest scores of MMSE-K ; the item scores for time and place orientation (4.48+/-0.770 and 4.80+/-0.500) and attention/calculation (4.00+/-1.258) as well as total score (25.88+/-2.877). Overweight in BMI showed an association with better cognitive function (OR(adjusted )=0.098, 95% confidence interval=0.017-0.577). CONCLUSION: In this study, the overweight group measured by BMI showed better cognitive function than other groups. Overweight in elderly might be acceptable in order to maintain cognitive performance. Further investigation regarding the underlying mechanism explaining the relationship between cognitive function and body weight will be needed.
Aged*
;
Body Mass Index
;
Body Weight
;
Humans
;
Obesity*
;
Obesity, Abdominal
;
Overweight
;
Republic of Korea
;
Smoke
;
Smoking
;
Thinness
;
Waist-Hip Ratio
10.A Study on Correlation between Anxiety Symptoms and Suicidal Ideation.
Hee Yeon CHOI ; Soo In KIM ; Kyu Wol YUN ; Young Chul KIM ; Weon Jeong LIM ; Eui Jung KIM ; Jae Hong RYOO
Psychiatry Investigation 2011;8(4):320-326
OBJECTIVE: In South Korea, the number of deaths from suicide has increased in the last two decades, and suicide has become both a social and political problem. In this study, after controlling the variables influencing suicidal ideation, it was expected that it would be determined if anxiety symptoms are independently related to suicidal ideation. METHODS: Data were obtained from 327 psychiatric outpatients accomplished a self-reported questionnaire that included sociodemographic characteristics and clinical variables as well as self-rating scales for measuring the severity of one's anxiety, depression, and suicidal ideation. Logistic-regression analyses were used to determine the correlation between anxiety symptoms and significant suicidal ideation, adjusting for covariates. RESULTS: The patients with significant suicidal ideation were shown to be less educated, unemployed, never married, divorced, or separated by death, or living alone, and were shown to have a lower income, a drinking habit, a higher number of past suicide attempts, and more family members who committed suicide, than the patients without significant suicidal ideation. After adjusting the covariates influencing significant suicidal ideation, anxiety symptoms were associated with significant suicidal ideation. However, after adjusting for depressive symptoms, only the trait anxiety was associated with significant suicidal ideation. CONCLUSION: These findings suggest that anxiety symptoms are an independent risk factor for suicidal ideation. Clinicians may thus use anxiety symptoms for the screening examination when evaluating suicidal ideation and risk, and will have to actively evaluate and treat the anxiety symptoms of patients with suicidal tendencies.
Anxiety
;
Depression
;
Divorce
;
Drinking
;
Humans
;
Mass Screening
;
Outpatients
;
Surveys and Questionnaires
;
Republic of Korea
;
Risk Factors
;
Single Person
;
Suicidal Ideation
;
Suicide
;
Weights and Measures

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