1.Inflammatory Cytokines and Cognition in Alzheimer’s Disease and Its Prodrome
Su Jeong SEONG ; Ki Woong KIM ; Joo Yun SONG ; Kee Jeong PARK ; Young Tak JO ; Jae Hyun HAN ; Ka Hee YOO ; Hyun Jun JO ; Jae Yeon HWANG
Psychiatry Investigation 2024;21(10):1054-1064
Objective:
The aim of this study was to investigate the association between blood levels of tumor necrosis factor-α (TNF-α) and interleukin-6 (IL-6) and cognitive impairments among elderly individuals.
Methods:
Peripheral concentration of TNF-α and IL-6 were measured in all subjects. To assess individual cognitive function, the Consortium to Establish a Registry for Alzheimer’s Disease Neuropsychological Assessment Battery (CERAD-NP) was used, and standardized scores (z-scores) were calculated for each test. Cytokine levels were compared between the diagnostic groups, and correlations between blood inflammatory factor levels and z-scores were analyzed.
Results:
The 37 participants included 8 patients with Alzheimer’s disease (AD), 15 subjects with mild cognitive impairment (MCI), and 14 cognitively healthy controls. TNF-α and IL-6 levels were higher in patients with AD than in healthy controls. TNF-α levels were higher in the AD group than in the MCI group. However, after adjusting for age, the associations between diagnosis and TNF-α and IL-6 were not significant. The higher the plasma IL-6 level, the lower the z-scores on the Boston Naming Test, Word List Learning, Word List Recognition, and Constructional Recall. The higher the serum TNF-α level, the lower the z-scores on the Word List Learning and Constructional Recall. Negative correlation between serum TNF-α level and the z-score on Word List Learning remained significant when age was adjusted.
Conclusion
The difference in the blood levels of TNF-α and IL-6 between the diagnostic groups may be associated with aging. However, elevated TNF-α levels were associated with worse immediate memory performance, even after adjusting for age.
2.Prognostic Significance Of Sequential 18f-fdg Pet/Ct During Frontline Treatment Of Peripheral T Cell Lymphomas
Ga-Young SONG ; Sung-Hoon JUNG ; Seo-Yeon AHN ; Mihee KIM ; Jae-Sook AHN ; Je-Jung LEE ; Hyeoung-Joon KIM ; Jang Bae MOON ; Su Woong YOO ; Seong Young KWON ; Jung-Joon MIN ; Hee-Seung BOM ; Sae-Ryung KANG ; Deok-Hwan YANG
The Korean Journal of Internal Medicine 2024;39(2):327-337
Background/Aims:
The prognostic significance of 18F-fluorodeoxyglucose (FDG)-positron emission tomography-computed tomography (PET/CT) in peripheral T-cell lymphomas (PTCLs) are controversial. We explored the prognostic impact of sequential 18F-FDG PET/CT during frontline chemotherapy of patients with PTCLs.
Methods:
In total, 143 patients with newly diagnosed PTCLs were included. Sequential 18F-FDG PET/CTs were performed at the time of diagnosis, during chemotherapy, and at the end of chemotherapy. The baseline total metabolic tumor volume (TMTV) was calculated using the the standard uptake value with a threshold method of 2.5.
Results:
A baseline TMTV of 457.0 cm3 was used to categorize patients into high and low TMTV groups. Patients with a requirehigh TMTV had shorter progression-free survival (PFS) and overall survival (OS) than those with a low TMTV (PFS, 9.8 vs. 26.5 mo, p = 0.043; OS, 18.9 vs. 71.2 mo, p = 0.004). The interim 18F-FDG PET/CT response score was recorded as 1, 2–3, and 4–5 according to the Deauville criteria. The PFS and OS showed significant differences according to the interim 18F-FDG PET/CT response score (PFS, 120.7 vs. 34.1 vs. 5.1 mo, p < 0.001; OS, not reached vs. 61.1 mo vs. 12.1 mo, p < 0.001).
Conclusions
The interim PET/CT response based on visual assessment predicts disease progression and survival outcome in PTCLs. A high baseline TMTV is associated with a poor response to anthracycline-based chemotherapy in PTCLs. However, TMTV was not an independent predictor for PFS in the multivariate analysis.
3.Introduction to the forensic research via omics markers in environmental health vulnerable areas (FROM) study
Jung-Yeon KWON ; Woo Jin KIM ; Yong Min CHO ; Byoung-gwon KIM ; Seungho LEE ; Jee Hyun RHO ; Sang-Yong EOM ; Dahee HAN ; Kyung-Hwa CHOI ; Jang-Hee LEE ; Jeeyoung KIM ; Sungho WON ; Hee-Gyoo KANG ; Sora MUN ; Hyun Ju YOO ; Jung-Woong KIM ; Kwan LEE ; Won-Ju PARK ; Seongchul HONG ; Young-Seoub HONG
Epidemiology and Health 2024;46(1):e2024062-
This research group (forensic research via omics markers in environmental health vulnerable areas: FROM) aimed to develop biomarkers for exposure to environmental hazards and diseases, assess environmental diseases, and apply and verify these biomarkers in environmentally vulnerable areas. Environmentally vulnerable areas—including refineries, abandoned metal mines, coal-fired power plants, waste incinerators, cement factories, and areas with high exposure to particulate matter—along with control areas, were selected for epidemiological investigations. A total of 1,157 adults, who had resided in these areas for over 10 years, were recruited between June 2021 and September 2023. Personal characteristics of the study participants were gathered through a survey. Biological samples, specifically blood and urine, were collected during the field investigations, separated under refrigerated conditions, and then transported to the laboratory for biomarker analysis. Analyses of heavy metals, environmental hazards, and adducts were conducted on these blood and urine samples. Additionally, omics analyses of epigenomes, proteomes, and metabolomes were performed using the blood samples. The biomarkers identified in this study will be utilized to assess the risk of environmental disease occurrence and to evaluate the impact on the health of residents in environmentally vulnerable areas, following the validation of diagnostic accuracy for these diseases.
4.Introduction to the forensic research via omics markers in environmental health vulnerable areas (FROM) study
Jung-Yeon KWON ; Woo Jin KIM ; Yong Min CHO ; Byoung-gwon KIM ; Seungho LEE ; Jee Hyun RHO ; Sang-Yong EOM ; Dahee HAN ; Kyung-Hwa CHOI ; Jang-Hee LEE ; Jeeyoung KIM ; Sungho WON ; Hee-Gyoo KANG ; Sora MUN ; Hyun Ju YOO ; Jung-Woong KIM ; Kwan LEE ; Won-Ju PARK ; Seongchul HONG ; Young-Seoub HONG
Epidemiology and Health 2024;46(1):e2024062-
This research group (forensic research via omics markers in environmental health vulnerable areas: FROM) aimed to develop biomarkers for exposure to environmental hazards and diseases, assess environmental diseases, and apply and verify these biomarkers in environmentally vulnerable areas. Environmentally vulnerable areas—including refineries, abandoned metal mines, coal-fired power plants, waste incinerators, cement factories, and areas with high exposure to particulate matter—along with control areas, were selected for epidemiological investigations. A total of 1,157 adults, who had resided in these areas for over 10 years, were recruited between June 2021 and September 2023. Personal characteristics of the study participants were gathered through a survey. Biological samples, specifically blood and urine, were collected during the field investigations, separated under refrigerated conditions, and then transported to the laboratory for biomarker analysis. Analyses of heavy metals, environmental hazards, and adducts were conducted on these blood and urine samples. Additionally, omics analyses of epigenomes, proteomes, and metabolomes were performed using the blood samples. The biomarkers identified in this study will be utilized to assess the risk of environmental disease occurrence and to evaluate the impact on the health of residents in environmentally vulnerable areas, following the validation of diagnostic accuracy for these diseases.
5.Successful treatment of adjunctive teriparatide therapy for medicationrelated osteonecrosis of the jaw: a report of two cases
Ra-yeon KIM ; Sung ok HONG ; Jae-woong JUNG ; Mu-hang LEE ; Young-kee LEE ; Yu-jin JEE
Journal of the Korean Association of Oral and Maxillofacial Surgeons 2024;50(5):285-291
Medication-related osteonecrosis of the jaw (MRONJ) is a refractory disease that can lead to severe destruction of the jaw. As there is no standard protocol for treating MRONJ, various treatments have been studied. Teriparatide has been used as an adjunct therapy for MRONJ. However, its effectiveness has not been sufficiently demonstrated for use as a standard treatment for MRONJ. This study aimed to demonstrate the efficacy of teriparatide in treating MRONJ by presenting two successfully treated cases. Each patient received teriparatide therapy with surgical intervention. The appropriateness of teriparatide use was evaluated based on the patient’s systemic condition, and the administration of teriparatide was supervised by a physician.Complete resolution of the lesion was observed clinically and radiographically in both patients. The first patient underwent implant placement at the lesion site. Due to its anabolic properties and ability to stimulate bone remodeling, teriparatide is an effective adjunctive pharmacological treatment for bone healing before and after surgery with associated beneficial effects on bone and mucosal healing.
6.Introduction to the forensic research via omics markers in environmental health vulnerable areas (FROM) study
Jung-Yeon KWON ; Woo Jin KIM ; Yong Min CHO ; Byoung-gwon KIM ; Seungho LEE ; Jee Hyun RHO ; Sang-Yong EOM ; Dahee HAN ; Kyung-Hwa CHOI ; Jang-Hee LEE ; Jeeyoung KIM ; Sungho WON ; Hee-Gyoo KANG ; Sora MUN ; Hyun Ju YOO ; Jung-Woong KIM ; Kwan LEE ; Won-Ju PARK ; Seongchul HONG ; Young-Seoub HONG
Epidemiology and Health 2024;46(1):e2024062-
This research group (forensic research via omics markers in environmental health vulnerable areas: FROM) aimed to develop biomarkers for exposure to environmental hazards and diseases, assess environmental diseases, and apply and verify these biomarkers in environmentally vulnerable areas. Environmentally vulnerable areas—including refineries, abandoned metal mines, coal-fired power plants, waste incinerators, cement factories, and areas with high exposure to particulate matter—along with control areas, were selected for epidemiological investigations. A total of 1,157 adults, who had resided in these areas for over 10 years, were recruited between June 2021 and September 2023. Personal characteristics of the study participants were gathered through a survey. Biological samples, specifically blood and urine, were collected during the field investigations, separated under refrigerated conditions, and then transported to the laboratory for biomarker analysis. Analyses of heavy metals, environmental hazards, and adducts were conducted on these blood and urine samples. Additionally, omics analyses of epigenomes, proteomes, and metabolomes were performed using the blood samples. The biomarkers identified in this study will be utilized to assess the risk of environmental disease occurrence and to evaluate the impact on the health of residents in environmentally vulnerable areas, following the validation of diagnostic accuracy for these diseases.
7.Successful treatment of adjunctive teriparatide therapy for medicationrelated osteonecrosis of the jaw: a report of two cases
Ra-yeon KIM ; Sung ok HONG ; Jae-woong JUNG ; Mu-hang LEE ; Young-kee LEE ; Yu-jin JEE
Journal of the Korean Association of Oral and Maxillofacial Surgeons 2024;50(5):285-291
Medication-related osteonecrosis of the jaw (MRONJ) is a refractory disease that can lead to severe destruction of the jaw. As there is no standard protocol for treating MRONJ, various treatments have been studied. Teriparatide has been used as an adjunct therapy for MRONJ. However, its effectiveness has not been sufficiently demonstrated for use as a standard treatment for MRONJ. This study aimed to demonstrate the efficacy of teriparatide in treating MRONJ by presenting two successfully treated cases. Each patient received teriparatide therapy with surgical intervention. The appropriateness of teriparatide use was evaluated based on the patient’s systemic condition, and the administration of teriparatide was supervised by a physician.Complete resolution of the lesion was observed clinically and radiographically in both patients. The first patient underwent implant placement at the lesion site. Due to its anabolic properties and ability to stimulate bone remodeling, teriparatide is an effective adjunctive pharmacological treatment for bone healing before and after surgery with associated beneficial effects on bone and mucosal healing.
8.Introduction to the forensic research via omics markers in environmental health vulnerable areas (FROM) study
Jung-Yeon KWON ; Woo Jin KIM ; Yong Min CHO ; Byoung-gwon KIM ; Seungho LEE ; Jee Hyun RHO ; Sang-Yong EOM ; Dahee HAN ; Kyung-Hwa CHOI ; Jang-Hee LEE ; Jeeyoung KIM ; Sungho WON ; Hee-Gyoo KANG ; Sora MUN ; Hyun Ju YOO ; Jung-Woong KIM ; Kwan LEE ; Won-Ju PARK ; Seongchul HONG ; Young-Seoub HONG
Epidemiology and Health 2024;46(1):e2024062-
This research group (forensic research via omics markers in environmental health vulnerable areas: FROM) aimed to develop biomarkers for exposure to environmental hazards and diseases, assess environmental diseases, and apply and verify these biomarkers in environmentally vulnerable areas. Environmentally vulnerable areas—including refineries, abandoned metal mines, coal-fired power plants, waste incinerators, cement factories, and areas with high exposure to particulate matter—along with control areas, were selected for epidemiological investigations. A total of 1,157 adults, who had resided in these areas for over 10 years, were recruited between June 2021 and September 2023. Personal characteristics of the study participants were gathered through a survey. Biological samples, specifically blood and urine, were collected during the field investigations, separated under refrigerated conditions, and then transported to the laboratory for biomarker analysis. Analyses of heavy metals, environmental hazards, and adducts were conducted on these blood and urine samples. Additionally, omics analyses of epigenomes, proteomes, and metabolomes were performed using the blood samples. The biomarkers identified in this study will be utilized to assess the risk of environmental disease occurrence and to evaluate the impact on the health of residents in environmentally vulnerable areas, following the validation of diagnostic accuracy for these diseases.
9.Successful treatment of adjunctive teriparatide therapy for medicationrelated osteonecrosis of the jaw: a report of two cases
Ra-yeon KIM ; Sung ok HONG ; Jae-woong JUNG ; Mu-hang LEE ; Young-kee LEE ; Yu-jin JEE
Journal of the Korean Association of Oral and Maxillofacial Surgeons 2024;50(5):285-291
Medication-related osteonecrosis of the jaw (MRONJ) is a refractory disease that can lead to severe destruction of the jaw. As there is no standard protocol for treating MRONJ, various treatments have been studied. Teriparatide has been used as an adjunct therapy for MRONJ. However, its effectiveness has not been sufficiently demonstrated for use as a standard treatment for MRONJ. This study aimed to demonstrate the efficacy of teriparatide in treating MRONJ by presenting two successfully treated cases. Each patient received teriparatide therapy with surgical intervention. The appropriateness of teriparatide use was evaluated based on the patient’s systemic condition, and the administration of teriparatide was supervised by a physician.Complete resolution of the lesion was observed clinically and radiographically in both patients. The first patient underwent implant placement at the lesion site. Due to its anabolic properties and ability to stimulate bone remodeling, teriparatide is an effective adjunctive pharmacological treatment for bone healing before and after surgery with associated beneficial effects on bone and mucosal healing.
10.Implication of Pre- and Post-radiotherapy ctDNA Dynamics in Patients with Residual Triple-Negative Breast Cancer at Surgery after Neoadjuvant Chemotherapy: Findings from a Prospective Observational Study
Tae Hoon LEE ; Haeyoung KIM ; Yeon Jeong KIM ; Woong-Yang PARK ; Won PARK ; Won Kyung CHO ; Nalee KIM
Cancer Research and Treatment 2024;56(2):531-537
Purpose:
This study aims to determine the association between pre- and postoperative radiotherapy (PORT) circulating tumor DNA (ctDNA) dynamics and oncological outcomes in patients with residual triple-negative breast cancer who underwent surgery after neoadjuvant chemotherapy (NAC).
Materials and Methods:
Between March 2019 and July 2020, 11 nonmetastatic patients with residual disease who underwent surgery after NAC were prospectively enrolled. In each patient, tumor specimens obtained during surgery and blood samples collected at three time points during PORT (T0: pre-PORT, T1: 3 weeks after PORT, T2: 1 month after PORT) were sequenced, targeting 38 cancer-related genes. Disease-free survival (DFS) was evaluated and the association between DFS and ctDNA dynamics was analyzed.
Results:
At T0, ctDNA was detected in three (27.2%) patients. The ctDNA dynamics were as follows: two showed a decreasing ctDNA variant allele frequency (VAF) and reached zero VAF at T2, while one patient exhibited an increasing VAF during PORT and maintained an elevated VAF at T2. After a median follow-up of 48 months, two patients experienced distant metastasis without any locoregional failures. All failures occurred in patients with ctDNA positivity at T0 and a decreased VAF after PORT. The 4-year DFS rates according to the T0 ctDNA status were 67% (positive ctDNA) and 100% (negative ctDNA) (p=0.032).
Conclusion
More than a quarter of the patients with residual disease after post-NAC surgery exhibited pre-PORT ctDNA positivity, and ctDNA positivity was associated with poor DFS. For patients with pre-PORT ctDNA positivity, the administration of a more effective systemic treatment should be considered.

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