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  1. Article ; Online: Clinical encounter with three cancer patients affected by groundwater contamination at Camp Lejeune: a case series and review of the literature.

    Jung, Kyungsuk / Khan, Aziz / Mocharnuk, Robert / Olivo-Marston, Susan / McDaniel, Justin T

    Journal of medical case reports

    2022  Volume 16, Issue 1, Page(s) 272

    Abstract: Background: Advanced understanding of tumor biology has recently revealed the complexity of cancer genetics, intra/inter-tumor heterogeneity, and diverse mechanisms of resistance to cancer treatment. In turn, there has been a growing interest in cancer ... ...

    Abstract Background: Advanced understanding of tumor biology has recently revealed the complexity of cancer genetics, intra/inter-tumor heterogeneity, and diverse mechanisms of resistance to cancer treatment. In turn, there has been a growing interest in cancer prevention and minimizing exposure to potential environmental carcinogens that surround us. In the 1980s, several chemical carcinogens, including perchloroethylene (PCE), trichloroethylene (TCE), and benzene, were detected in water systems supplying Camp Lejeune, a US Marine Corps Base Camp located in North Carolina.
    Case presentation: This article presents three cases of cancer patients who have lived at Camp Lejeune, and, decades later, came to our clinic located 1000 miles from the original exposure site. The first patient is a young Caucasian man who was diagnosed with T cell acute lymphoblastic leukemia at the age of 37, and the second patient is a Caucasian man who had multiple types of cancer in the prostate, lung, and colon as well as chronic lymphocytic leukemia in his 60s and 70s. The third patient is another Caucasian man who had recurrent skin cancers of different histology, namely basal cell carcinomas, squamous cell carcinomas, and melanoma, from his 50s to 70s.
    Conclusions: The US Congress passed the Honoring America's Veterans and Caring for Camp Lejeune Families Act in 2012, which covers appropriate medical care for the people affected by the contamination. We hope that this article raises awareness about the history of Camp Lejeune's water contamination among cancer care providers, so the affected patients can receive appropriate medical coverage and cancer screening across the country.
    MeSH term(s) Groundwater ; Humans ; Male ; Military Personnel ; Neoplasms ; North Carolina ; Water
    Chemical Substances Water (059QF0KO0R)
    Language English
    Publishing date 2022-07-12
    Publishing country England
    Document type Case Reports ; Journal Article ; Review
    ZDB-ID 2269805-X
    ISSN 1752-1947 ; 1752-1947
    ISSN (online) 1752-1947
    ISSN 1752-1947
    DOI 10.1186/s13256-022-03501-9
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Online travel information value and its influence on the continuance usage intention of social media

    Jung, Heejin / Hur, Kyungsuk / Kim, Taegoo / Lee, Gyehee

    Service business Vol. 12, No. 1 , p. 85-120

    2018  Volume 12, Issue 1, Page(s) 85–120

    Author's details Heejin Jung, Gyehee Lee, Kyungsuk Hur, Taegoo Terry Kim
    Keywords Triandis model ; Online travel information value ; Affective community commitment ; Continuance usage intention ; Social media
    Language English
    Size Online-Ressource
    Publisher Springer
    Publishing place Berlin
    Document type Article ; Online
    ZDB-ID 2279938-2
    ISSN 1862-8508 ; 1862-8516
    ISSN (online) 1862-8508
    ISSN 1862-8516
    DOI 10.1007/s11628-017-0339-4
    Database ECONomics Information System

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  3. Article ; Online: Targeting phosphoinositide 3-kinase (PI3K) in head and neck squamous cell carcinoma (HNSCC).

    Jung, Kyungsuk / Kang, Hyunseok / Mehra, Ranee

    Cancers of the head & neck

    2018  Volume 3, Page(s) 3

    Abstract: The landscape of head and neck squamous cell carcinoma (HNSCC) has been changing rapidly due to growing proportion of HPV-related disease and development of new therapeutic agents. At the same time, there has been a constant need for individually ... ...

    Abstract The landscape of head and neck squamous cell carcinoma (HNSCC) has been changing rapidly due to growing proportion of HPV-related disease and development of new therapeutic agents. At the same time, there has been a constant need for individually tailored treatment based on genetic biomarkers in order to optimize patient survival and alleviate treatment-related toxicities. In this regard, aberrations of PI3K pathway have important clinical implications in the treatment of HNSCC. They frequently constitute 'gain of function' mutations which trigger oncogenesis, and PI3K mutations can also lead to emergence of drug resistance after treatment with EGFR inhibitors. In this article, we review PI3K pathway as a target of treatment for HNSCC and summarize PI3K/mTOR inhibitors that are currently under clinical trials. In light of recent advancement of immune checkpoint inhibitors, consideration of PI3K inhibitors as potential immune modulators is also suggested.
    Language English
    Publishing date 2018-06-04
    Publishing country England
    Document type Journal Article ; Review
    ISSN 2059-7347
    ISSN (online) 2059-7347
    DOI 10.1186/s41199-018-0030-z
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Squamous cell carcinoma of head and neck: what internists should know.

    Jung, Kyungsuk / Narwal, Manpreet / Min, Seon Young / Keam, Bhumsuk / Kang, Hyunseok

    The Korean journal of internal medicine

    2020  Volume 35, Issue 5, Page(s) 1031–1044

    Abstract: Squamous cell carcinoma of head and neck (SCCHN) is a group of cancer arising from mucosal surfaces of the head and neck. Optimal management of SCCHN requires a multidisciplinary team of surgical oncologists, radiation oncologists, medical oncologists, ... ...

    Abstract Squamous cell carcinoma of head and neck (SCCHN) is a group of cancer arising from mucosal surfaces of the head and neck. Optimal management of SCCHN requires a multidisciplinary team of surgical oncologists, radiation oncologists, medical oncologists, nutritionist, and speech-language pathologists, due to the complexity of anatomical structure and importance of functional outcome. Human papilloma virus (HPV)-related SCCHN represents a distinct subset from HPV negative SCCHN which is associated with carcinogen exposure such as cigarette smoking, betel nut use and alcohol. HPV related SCCHN responds better to concurrent chemoradiation and has better overall prognosis, compared to HPV negative SCCHN. Radiation therapy has been introduced to the treatment of SCCHN, administered concurrently with systemic chemotherapy for locoregional SCCHN, as well as a palliative measure for recurrent and/or metastatic (R/M) SCCHN. Recently, immune checkpoint inhibitors have been shown to improve overall survival in R/M-SCCHN and have been incorporated into the standard of care. Combination approaches with immune therapy and targeted therapy for biomarker enriched population based on genomics are being actively investigated and will shape the future of SCCHN treatment.
    MeSH term(s) Carcinoma, Squamous Cell/diagnosis ; Carcinoma, Squamous Cell/etiology ; Carcinoma, Squamous Cell/therapy ; Head and Neck Neoplasms/diagnosis ; Head and Neck Neoplasms/etiology ; Head and Neck Neoplasms/therapy ; Humans ; Neoplasm Recurrence, Local ; Papillomaviridae/genetics ; Squamous Cell Carcinoma of Head and Neck/diagnosis ; Squamous Cell Carcinoma of Head and Neck/therapy
    Language English
    Publishing date 2020-07-14
    Publishing country Korea (South)
    Document type Journal Article ; Review
    ZDB-ID 639023-7
    ISSN 2005-6648 ; 1226-3303
    ISSN (online) 2005-6648
    ISSN 1226-3303
    DOI 10.3904/kjim.2020.078
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Squamous cell carcinoma of head and neck

    Kyungsuk Jung / Manpreet Narwal / Seon Young Min / Bhumsuk Keam / Hyunseok Kang

    The Korean Journal of Internal Medicine, Vol 35, Iss 5, Pp 1031-

    what internists should know

    2020  Volume 1044

    Abstract: Squamous cell carcinoma of head and neck (SCCHN) is a group of cancer arising from mucosal surfaces of the head and neck. Optimal management of SCCHN requires a multidisciplinary team of surgical oncologists, radiation oncologists, medical oncologists, ... ...

    Abstract Squamous cell carcinoma of head and neck (SCCHN) is a group of cancer arising from mucosal surfaces of the head and neck. Optimal management of SCCHN requires a multidisciplinary team of surgical oncologists, radiation oncologists, medical oncologists, nutritionist, and speech-language pathologists, due to the complexity of anatomical structure and importance of functional outcome. Human papilloma virus (HPV)-related SCCHN represents a distinct subset from HPV negative SCCHN which is associated with carcinogen exposure such as cigarette smoking, betel nut use and alcohol. HPV related SCCHN responds better to concurrent chemoradiation and has better overall prognosis, compared to HPV negative SCCHN. Radiation therapy has been introduced to the treatment of SCCHN, administered concurrently with systemic chemotherapy for locoregional SCCHN, as well as a palliative measure for recurrent and/or metastatic (R/M) SCCHN. Recently, immune checkpoint inhibitors have been shown to improve overall survival in R/M-SCCHN and have been incorporated into the standard of care. Combination approaches with immune therapy and targeted therapy for biomarker enriched population based on genomics are being actively investigated and will shape the future of SCCHN treatment.
    Keywords head and neck neoplasms ; papillomaviridae ; survivorship ; drug therapy ; Medicine ; R
    Subject code 616
    Language English
    Publishing date 2020-09-01T00:00:00Z
    Publisher The Korean Association of Internal Medicine
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  6. Article ; Online: 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, Vol

    2018  Volume 40

    Abstract: 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 ... ...

    Abstract 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.
    Keywords Lung neoplasms ; Prostatic neoplasms ; Androgen antagonists ; Hormones ; Veterans ; Medicine ; R
    Subject code 610
    Language English
    Publishing date 2018-08-01T00:00:00Z
    Publisher Korean Society of Epidemiology
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  7. Article ; Online: Androgen deprivation therapy is associated with decreased second primary lung cancer risk in the United States veterans with prostate cancer.

    Jung, Kyungsuk / Park, Jong Chul / Kang, Hyunseok / Brandes, Johann Christoph

    Epidemiology and health

    2018  Volume 40, Page(s) e2018040

    Abstract: 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 ... ...

    Abstract 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.
    MeSH term(s) Aged ; Androgen Antagonists/therapeutic use ; Follow-Up Studies ; Humans ; Lung Neoplasms/prevention & control ; Male ; Neoplasms, Second Primary/prevention & control ; Prostatic Neoplasms/drug therapy ; Prostatic Neoplasms/epidemiology ; Registries ; Risk ; Treatment Outcome ; United States/epidemiology ; Veterans/statistics & numerical data
    Chemical Substances Androgen Antagonists
    Language English
    Publishing date 2018-08-11
    Publishing country Korea (South)
    Document type Journal Article
    ZDB-ID 2590698-7
    ISSN 2092-7193 ; 2092-7193
    ISSN (online) 2092-7193
    ISSN 2092-7193
    DOI 10.4178/epih.e2018040
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article ; Online: Nivolumab-associated acute glomerulonephritis: a case report and literature review.

    Jung, Kyungsuk / Zeng, Xu / Bilusic, Marijo

    BMC nephrology

    2016  Volume 17, Issue 1, Page(s) 188

    Abstract: Background: Immune checkpoint inhibitors are changing the landscape of oncology treatment as they are significantly improving treatment for multiple malignancies. Nivolumab, an anti-programmed death 1 antibody, is a US Food and Drug Administration- ... ...

    Abstract Background: Immune checkpoint inhibitors are changing the landscape of oncology treatment as they are significantly improving treatment for multiple malignancies. Nivolumab, an anti-programmed death 1 antibody, is a US Food and Drug Administration-approved treatment for melanoma, non-small cell lung cancer, and kidney cancer but can result in a spectrum of autoimmune side effects. Adverse effects can occur within any organ system in the body including the colon, lung, liver, endocrine systems, or kidneys.
    Case presentation: A 70-year-old male with clear cell kidney cancer was admitted with acute kidney injury while on nivolumab. A kidney biopsy revealed diffuse tubular injury and immune complex-mediated glomerulonephritis. Electron microscopy of the specimen showed hump-like subepithelial deposits. Nivolumab was discontinued and the patient was started on a high dose of steroids. After 5 months of systemic corticosteroids and hemodialysis, the patient's kidney function improved to his baseline level. Despite a prolonged interruption to treatment, immunosuppressive therapy did not compromise the anticancer effects of nivolumab.
    Conclusion: Immune-related adverse effects in the kidney can cause autoimmune glomerulonephritis as well as tubulointerstitial injury. In the literature, immune-related nephritis generally responded well to systemic corticosteroid treatment. Based on our experience, a prolonged course of a high dose of steroids and hemodialysis may be required to achieve an adequate treatment effect.
    Language English
    Publishing date 2016-11-22
    Publishing country England
    Document type Journal Article
    ZDB-ID 2041348-8
    ISSN 1471-2369 ; 1471-2369
    ISSN (online) 1471-2369
    ISSN 1471-2369
    DOI 10.1186/s12882-016-0408-2
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article ; Online: Increased risk of atherosclerosis associated with pesticide exposure in rural areas in Korea.

    Park, Sungjin / Choi, Jung Ran / Kim, Sung-Kyung / Lee, Solam / Lee, Kyungsuk / Kim, Jang-Young / Oh, Sung-Soo / Koh, Sang-Baek

    PloS one

    2020  Volume 15, Issue 5, Page(s) e0232531

    Abstract: Atherosclerosis is a progressive inflammation in systemic vessels, and pesticide exposure has been emerging as its risk factor. This cross-sectional study investigated the association between pesticide exposure and the risk of atherosclerosis in a rural ... ...

    Abstract Atherosclerosis is a progressive inflammation in systemic vessels, and pesticide exposure has been emerging as its risk factor. This cross-sectional study investigated the association between pesticide exposure and the risk of atherosclerosis in a rural population in Korea using carotid intima-media thickness (CIMT). This study used dataset from the baseline survey of the Korea Farmers Cohort Study between November 2005 and January 2008, and the final analysis included 477 participants. Well-structured questionnaires were used to estimate pesticide exposure. CIMT ≥ 0.9 mm was established for carotid atherosclerosis. Multiple logistic regression analyses were undertaken to evaluate the association between pesticide exposure and atherosclerosis, adjusting demographic and health-related confounders. Even after adjustments, the increased risk of atherosclerosis was significantly associated with pesticide exposure, such as a lifetime history of farming (odds ratio [OR] 3.25 95% confidence interval [CI] 1.51-6.98), a history of using pesticide (OR 3.42 95% CI 1.63-7.16), using pesticide 10 times or more annually (OR 2.55 95% CI 1.21-5.39), and higher cumulative exposure index level (OR 3.63 95% CI 1.65-7.97). Further prospective studies are required to elucidate effects of pesticide exposure on the risk of atherosclerosis.
    MeSH term(s) Adult ; Aged ; Agriculture ; Atherosclerosis/epidemiology ; Atherosclerosis/etiology ; Carotid Intima-Media Thickness ; Cohort Studies ; Cross-Sectional Studies ; Female ; Humans ; Logistic Models ; Male ; Middle Aged ; Occupational Exposure/adverse effects ; Pesticides/toxicity ; Prospective Studies ; Republic of Korea/epidemiology ; Risk Factors ; Rural Population ; Surveys and Questionnaires
    Chemical Substances Pesticides
    Language English
    Publishing date 2020-05-01
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ISSN 1932-6203
    ISSN (online) 1932-6203
    DOI 10.1371/journal.pone.0232531
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article ; Online: Association Between Chronic Exposure to Pesticide and Suicide.

    Jung, Myoungjee / Chang, Sei-Jin / Kim, Chun-Bae / Min, Seongho / Lee, Kyungsuk / Koh, Sang Baek / Choi, Jung Ran

    Journal of occupational and environmental medicine

    2019  Volume 61, Issue 4, Page(s) 314–317

    Abstract: Objective: We investigated the association between suicide and pesticide exposure in a community-based cohort study.: Methods: We performed a longitudinal analysis of 6333 who participated in the initial survey of the Korean Genome and Epidemiology ... ...

    Abstract Objective: We investigated the association between suicide and pesticide exposure in a community-based cohort study.
    Methods: We performed a longitudinal analysis of 6333 who participated in the initial survey of the Korean Genome and Epidemiology Study. Data were collected using a questionnaire to assess the prevalence of suicide. We calculated the hazard ratios (HRs) for suicide by pesticide exposure using the Cox proportional hazard model.
    Results: After adjusting for variables, participants exposed to pesticides had a 1.88-fold increased risk of suicide (HR, 1.88; 95% confidence interval [CI], 1.11 to 3.16) than those who were not exposed. Study populations with greater pesticide use (HR, 2.42; 95% CI, 1.27 to 4.60) and pesticide addiction had the highest suicide rates (HR, 1.91; 95% CI, 1.03 to 3.56).
    Conclusions: Pesticide exposure for suicide should be considered during the development and implementation of suicide prevention in rural area.
    MeSH term(s) Aged ; Aged, 80 and over ; Environmental Exposure/adverse effects ; Environmental Pollutants/toxicity ; Female ; Follow-Up Studies ; Humans ; Male ; Middle Aged ; Pesticides/toxicity ; Proportional Hazards Models ; Republic of Korea ; Risk Factors ; Self Report ; Suicide/statistics & numerical data
    Chemical Substances Environmental Pollutants ; Pesticides
    Language English
    Publishing date 2019-04-03
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 1223932-x
    ISSN 1536-5948 ; 1076-2752
    ISSN (online) 1536-5948
    ISSN 1076-2752
    DOI 10.1097/JOM.0000000000001545
    Database MEDical Literature Analysis and Retrieval System OnLINE

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