1.Changing Trends What Patients with Thyroid Cancer Surgery Are Concerned About: Comparison between 2012 and 2020
Minjin LEE ; Hyeok Jun YUN ; Kyung Ah PARK ; Jihye HEO ; Hanna KIM ; Yong Sang LEE ; Hang-Seok CHANG ; Cheong Soo PARK
International Journal of Thyroidology 2022;15(1):28-35
Background and Objectives:
Given the major changes in spread of COVID-19 and the contribution of technological innovation, the objective of the current study was to compare the educational needs of thyroid cancer patients between 2012 and 2020.
Materials and Methods:
The subject of this study were 159 patients in 2012 and 149 patients in 2020 who underwent thyroid cancer surgery. Data were collected from September 2020 to December 2020. Their responses were compared with response for the 2012 survey. The survey contained 36 questions regarding demographics and 5 areas of educational needs (Treatment plan after discharge, Management of the symptom and the complication after surgery, Medication management, Postoperative wound and dietary management, Daily life).
Results:
The most preferred teaching method for thyroid cancer surgery patients has changed from small group education to self-study with videos. The Internet accounted for the largest proportion of source of information and the preferred educator for the patient were doctors and nurses in both 2012 and 2020. ‘Current disease condition and surgical result’ was the highest ranked in both 2012 and 2020.
Conclusion
It is necessary to develop and utilize an educational method using video centered on medical team including doctors and nurses.
2.Prognostic Value of Alpha-Fetoprotein in Patients Who Achieve a Complete Response to Transarterial Chemoembolization for Hepatocellular Carcinoma
Jae Seung LEE ; Young Eun CHON ; Beom Kyung KIM ; Jun Yong PARK ; Do Young KIM ; Sang Hoon AHN ; Kwang-Hyub HAN ; Wonseok KANG ; Moon Seok CHOI ; Geum-Youn GWAK ; Yong-Han PAIK ; Joon Hyeok LEE ; Kwang Cheol KOH ; Seung Woon PAIK ; Hwi Young KIM ; Tae Hun KIM ; Kwon YOO ; Yeonjung HA ; Mi Na KIM ; Joo Ho LEE ; Seong Gyu HWANG ; Soon Sun KIM ; Hyo Jung CHO ; Jae Youn CHEONG ; Sung Won CHO ; Seung Ha PARK ; Nae-Yun HEO ; Young Mi HONG ; Ki Tae YOON ; Mong CHO ; Jung Gil PARK ; Min Kyu KANG ; Soo Young PARK ; Young Oh KWEON ; Won Young TAK ; Se Young JANG ; Dong Hyun SINN ; Seung Up KIM ;
Yonsei Medical Journal 2021;62(1):12-20
Purpose:
Alpha-fetoprotein (AFP) is a prognostic marker for hepatocellular carcinoma (HCC). We investigated the prognostic value of AFP levels in patients who achieved complete response (CR) to transarterial chemoembolization (TACE) for HCC.
Materials and Methods:
Between 2005 and 2018, 890 patients with HCC who achieved a CR to TACE were recruited. An AFP responder was defined as a patient who showed elevated levels of AFP (>10 ng/mL) during TACE, but showed normalization or a >50% reduction in AFP levels after achieving a CR.
Results:
Among the recruited patients, 569 (63.9%) with naïve HCC and 321 (36.1%) with recurrent HCC after complete resection were treated. Before TACE, 305 (34.3%) patients had multiple tumors, 219 (24.6%) had a maximal tumor size >3 cm, and 22 (2.5%) had portal vein tumor thrombosis. The median AFP level after achieving a CR was 6.36 ng/mL. After a CR, 473 (53.1%) patients experienced recurrence, and 417 (46.9%) died [median progression-free survival (PFS) and overall survival (OS) of 16.3 and 62.8 months, respectively]. High AFP levels at CR (>20 ng/mL) were independently associated with a shorter PFS [hazard ratio (HR)=1.403] and OS (HR=1.284), together with tumor multiplicity at TACE (HR=1.518 and 1.666, respectively). AFP non-responders at CR (76.2%, n=359 of 471) showed a shorter PFS (median 10.5 months vs. 15.5 months, HR=1.375) and OS (median 41.4 months vs. 61.8 months, HR=1.424) than AFP responders (all p=0.001).
Conclusion
High AFP levels and AFP non-responders were independently associated with poor outcomes after TACE. AFP holds clinical implications for detailed risk stratification upon achieving a CR after TACE.
3.Contrasting Prognostic Effects of Tumor-Infiltrating Lymphocyte Density in Cardia and Non-cardia Gastric Adenocarcinomas
Hyoung-Il KIM ; Sang Yong KIM ; Jae Eun YU ; Su-Jin SHIN ; Yun Ho ROH ; Jae-Ho CHEONG ; Woo Jin HYUNG ; Sung Hoon NOH ; Chung-Gyu PARK ; Hyuk-Joon LEE
Journal of Gastric Cancer 2020;20(2):190-201
Purpose:
This study sought to investigate the prognostic significance of tumor-infiltrating lymphocytes (TILs) in relation to tumor location within the stomach.
Materials and Methods:
The densities and prognostic significance of TIL subsets were evaluated in 542 gastric cancer patients who underwent gastrectomy. Immunohistochemical staining for CD3, CD4, CD8, forkhead/winged helix transcription factor (Foxp3), and granzyme B was performed.
Results:
Cardia cancer was associated with significantly lower densities of CD8 T-cells and higher densities of Foxp3 and granzyme B T-cells than non-cardia tumors. Multivariate analysis showed that advanced age (hazard ratio [HR], 1.023; 95% confidence interval [CI], 1.006–1.040), advanced T classification (HR, 2.029; 95% CI, 1.106–3.721), lymph node metastasis (HR, 3.319; 95% CI, 1.947–5.658), low CD3 expression (HR, 0.997; 95% CI, 0.994–0.999), and a high Foxp3/CD4 ratio (HR, 1.007; 95% CI, 1.001–1.012) were independent predictors of poor overall survival in cardia cancer patients. In non-cardia cancer patients, total gastrectomy (HR, 2.147; 95% CI, 1.507–3.059), advanced T classification (HR, 2.158; 95% CI, 1.425–3.266), lymph node metastasis (HR, 1.854; 95% CI, 1.250–2.750), and a low Foxp3/CD4 ratio (HR, 0.978; 95% CI, 0.959–0.997) were poor prognostic factors for survival.
Conclusions
The densities and prognostic effects of TILs differed in relation to the location of tumors within the stomach. The contrasting prognostic effects of Foxp3/CD4 ratio in cardia and non-cardia gastric cancer patients suggests that clinicians ought to consider tumor location when determining treatment strategies.
4.Rab25 augments cancer cell invasiveness through a β1 integrin/EGFR/VEGF-A/Snail signaling axis and expression of fascin
Bo Young JEONG ; Kyung Hwa CHO ; Kang Jin JEONG ; Yun Yong PARK ; Jin Man KIM ; Sun Young RHA ; Chang Gyo PARK ; Gordon B MILLS ; Jae Ho CHEONG ; Hoi Young LEE
Experimental & Molecular Medicine 2018;50(1):e435-
The small GTP-binding protein Rab25 is associated with tumor formation and progression. However, recent studies have shown discordant effects of Rab25 on cancer cell progression depending on cell lineage. In the present study, we elucidate the underlying mechanisms by which Rab25 induces cellular invasion. We demonstrate that Rab25 increases β1 integrin levels and subsequent activation of EGFR and upregulation of VEGF-A expression, leading to increased Snail expression, epithelial-to-mesenchymal transition and cancer cell invasiveness. Strikingly, we identify that Snail mediates Rab25-induced cancer cell invasiveness through fascin expression and that ectopic expression of Rab25 aggravates metastasis of ovarian cancer cells to the lung. We thus demonstrate a novel role of a β1 integrin/EGFR/VEGF-A/Snail signaling cascade in Rab25-induced cancer cell aggressiveness through induction of fascin expression, thus providing novel biomarkers and potential therapeutic targets for Rab25-expressing cancer cells.
Biomarkers
;
Cell Lineage
;
Ectopic Gene Expression
;
GTP-Binding Proteins
;
Lung
;
Neoplasm Metastasis
;
Ovarian Neoplasms
;
Snails
;
Up-Regulation
;
Vascular Endothelial Growth Factor A
5.Piperidylmethyloxychalcone improves immune-mediated acute liver failure via inhibiting TAK1 activity.
Sun Hong PARK ; Jeong Ah KWAK ; Sang Hun JUNG ; Byeongwoo AHN ; Won Jea CHO ; Cheong Yong YUN ; Chang Seon NA ; Bang Yeon HWANG ; Jin Tae HONG ; Sang Bae HAN ; Youngsoo KIM
Experimental & Molecular Medicine 2017;49(11):e392-
Mice deficient in the toll-like receptor (TLR) or the myeloid differentiation factor 88 (MyD88) are resistant to acute liver failure (ALF) with sudden death of hepatocytes. Chalcone derivatives from medicinal plants protect from hepatic damages including ALF, but their mechanisms remain to be clarified. Here, we focused on molecular basis of piperidylmethyloxychalcone (PMOC) in the treatment of TLR/MyD88-associated ALF. C57BL/6J mice were sensitized with D-galactosamine (GalN) and challenged with Escherichia coli lipopolysaccharide (LPS, TLR4 agonist) or oligodeoxynucleotide containing unmethylated CpG motif (CpG ODN, TLR9 agonist) for induction of ALF. Post treatment with PMOC sequentially ameliorated hepatic inflammation, apoptosis of hepatocytes, severe liver injury and shock-mediated death in ALF-induced mice. As a mechanism, PMOC inhibited the catalytic activity of TGF-β-activated kinase 1 (TAK1) in a competitive manner with respect to ATP, displaced fluorescent ATP probe from the complex with TAK1, and docked at the ATP-binding active site on the crystal structure of TAK1. Moreover, PMOC inhibited TAK1 auto-phosphorylation, which is an axis in the activating pathways of nuclear factor-κB (NF-κB) or activating protein 1 (AP1), in the liver with ALF in vivo or in primary liver cells stimulated with TLR agonists in vitro. PMOC consequently suppressed TAK1-inducible NF-κB or AP1 activity in the inflammatory injury, an early pathogenesis leading to ALF. The results suggested that PMOC could contribute to the treatment of TLR/MyD88-associated ALF with the ATP-binding site of TAK1 as a potential therapeutic target.
Adenosine Triphosphate
;
Animals
;
Apoptosis
;
Catalytic Domain
;
Chalcone
;
Death, Sudden
;
Escherichia coli
;
Hepatocytes
;
In Vitro Techniques
;
Inflammation
;
Liver
;
Liver Failure, Acute*
;
Mice
;
Myeloid Differentiation Factor 88
;
Phosphotransferases
;
Plants, Medicinal
;
Toll-Like Receptors
6.Adrenal Schwannoma: Rare Entity of Adrenal Incidentaloma.
Hyeok Jun YUN ; Soo Young KIM ; Seok Mo KIM ; Bup Woo KIM ; Yong Sang LEE ; Hang Seok CHANG ; Cheong Soo PARK
Korean Journal of Endocrine Surgery 2016;16(4):107-111
PURPOSE: Adrenal schwannomas are very rare and are usually incidentally found on autopsy and imaging. The aim of this study was to describe our experience of adrenal schwannoma and review the literature regarding this rare tumor. METHODS: To identify patients with adrenal schwannoma, the MEDLINE database was searched via the major electronic database PubMed using the medical subject heading terms “adrenal” and “schwannoma”. Thirty-nine adrenal schwannoma cases, including two from our institution were included. RESULTS: The mean age at diagnosis was 47.95 years (range, 11~89 years). The female:male ratio was 21:17. Sixteen patients had tumors on the right side, 19 on the left, while one patient had bilateral tumors. The mean tumor size was 6.12 cm (range, 0.6~14.5 cm), and the mean tumor weight was 161.3 g (range, 31.5~600.0 g). Sixteen tumors were solid, four cystic, one solid and cystic, and 18 were not described. Histologically, 14 cases were Antoni A, two were Antoni B, and 12 had concomitant Antoni A and B. CONCLUSION: Adrenal schwannoma is usually an incidental finding, and the clinician must have a high index of suspicion to recognize it when imaging reveals suggestive features.
Adrenal Glands
;
Autopsy
;
Diagnosis
;
Humans
;
Incidental Findings
;
Medical Subject Headings
;
Neurilemmoma*
;
Tumor Burden
7.Outcomes of Ultrasound-Guided Extracorporeal Shock Wave Therapy for Painful Stump Neuroma.
Yun Jae JUNG ; Won Yong PARK ; Jong Hyun JEON ; Jeong Hyeon MUN ; Yoon Soo CHO ; Ah Young JUN ; Ki Un JANG ; Cheong Hoon SEO
Annals of Rehabilitation Medicine 2014;38(4):523-533
OBJECTIVE: To investigate the effect of extracorporeal shock wave therapy (ESWT) on painful stump neuroma. METHODS: Thirty patients with stump neuroma at the distal end of an amputation site were assigned randomly to the ESWT group (n=15) and the transcutaneous electrical nerve stimulation (TENS)+desensitization+pharmacological treatment group (n=15). For 3 weeks, the ESWT group received a weekly session involving 1,500 pulses at 0.10 mJ/mm2, while the control group was treated 10 times each, 40 minutes per day with TENS and desensitization treatment, and daily medication for 3 weeks. ESWT stimulation was given by focusing on the area at the neuroma site clearly identified by ultrasound. RESULTS: The changes in the McGill pain questionnaire were 38.8+/-9.0 prior to treatment and 11.8+/-3.1 following the treatment. The corresponding values for the control group were 37.2+/-7.7 and 28.5+/-10.3. The changes between groups were significantly different (p=0.035). The change in visual analog scale prior to and after treatment was 7.0+/-1.5 and 2.8+/-0.8 in the ESWT group, respectively, and 7.2+/-1.4 and 5.8+/-2.0 in the control group. These changes between the groups were also significantly different (p=0.010). The outcome in the pain rating scale also showed significant differences between groups (p<0.001). Changes in neuroma size and pain pressure threshold (lb/cm2) were not significantly different between groups (p>0.05). CONCLUSION: The study findings imply that ESWT for stump neuroma is superior to conventional therapy.
Amputation
;
Amputation Stumps
;
Humans
;
Neuroma*
;
Pain Measurement
;
Shock*
;
Transcutaneous Electric Nerve Stimulation
;
Ultrasonography
;
Visual Analog Scale
8.Current Status of Human Taeniasis in Lao People's Democratic Republic.
Hyeong Kyu JEON ; Tai Soon YONG ; Woon Mok SOHN ; Jong Yil CHAI ; Duk Young MIN ; Cheong Ha YUN ; Han Jong RIM ; Tiengkham PONGVONGSA ; Virasack BANOUVONG ; Bounnaloth INSISIENGMAY ; Bounlay PHOMMASACK ; Keeseon S EOM
The Korean Journal of Parasitology 2013;51(2):259-263
Human taeniasis was investigated in Lao People's Democratic Republic (Lao PDR) between 2000 and 2011 as part of the nation's helminthiasis survey. A total of 55,038 inhabitants, including 29,846 school children, were examined using the Kato-Katz and scotch-tape anal swab method, and morphological observation of adult worms. Molecular identification of Taenia tapeworms was performed by multiplex PCR or DNA sequence analysis of the mitochondrial cox1 gene. Taenia eggs were present at a rate of 1.5% (845/55,038) in the subject population. Adult tapeworms were identified as T. solium or T. saginata by analyzing the collectable stool specimens (n=126). Three specimens identified as T. solium were found in Luang Prabang, while the remaining 123 specimens, which were T. saginata, were found in Bokeo, Bolikhamxay, Champasak, Houaphan, Khammouane, Luang Namta, Luang Prabang, Oudomxay, Phongsaly, Saysomboune, Saravane, Savannakhet, Xayaboury, Xekong, Xieng Khouang Province, and Vientiane Municipality.
Adolescent
;
Adult
;
Aged
;
Anal Canal/parasitology
;
Animals
;
Child
;
Female
;
Humans
;
Laos/epidemiology
;
Male
;
Microscopy
;
Middle Aged
;
Polymerase Chain Reaction
;
Prevalence
;
Taenia saginata/isolation & purification
;
Taenia solium/isolation & purification
;
Taeniasis/*epidemiology/parasitology
9.Analysis of Reasons for Continuing Education in Dietitians.
Cheong Min SOHN ; Young Yun CHO ; Mi Yong BEA ; Eun Kyoung DO ; Woo Ri NA ; Mi Sung KIM
Journal of the Korean Dietetic Association 2013;19(4):416-423
This study analyzed the reasons for continuing education among dietitians. An internet-based survey of 622 dieticians was conducted from August 31, 2012 to September 12, 2012. Based on data from the Participation Reasons Scale (PRS) questionnaire, factor analysis was conducted by principle component analysis for the extraction of major factors. Subsequent reliability analysis was performed by assessing Cronbach's alpha. The ANOVA-test was performed to compare the participation reason scores for each factors according to general characteristics. Statistical analysis was performed using SPSS ver.17.0, and P<0.05 was considered significant. Factor analysis for the participation reasons revealed four types of factors. These factors were "maintenance and development of professional competencies", "interaction and responsibility of professionals", "job stability and personal profits" and "services for customers" respectively. Among the participation reasons, "maintenance and development of professional competencies" was the first reason with a 29.34% variance. In addition, the participation reasons for continuing education differed according to age (P<0.05), the highest level of education (P<0.05), workplace (P<0.01), and work experience in dietetic area (P<0.001). In conclusion, continuing education programs for dietitians should focus on effectively developing and promoting professionalism.
Education
;
Education, Continuing*
;
Humans
;
Surveys and Questionnaires
10.Acute Pulmonary Toxicity and Body Distribution of Inhaled Metallic Silver Nanoparticles.
Jung Taek KWON ; Arash MINAI-TEHRANI ; Soon Kyung HWANG ; Ji Eun KIM ; Ji Young SHIN ; Kyeong Nam YU ; Seung Hee CHANG ; Dae Seong KIM ; Yong Taek KWON ; In Ja CHOI ; Yun Hee CHEONG ; Jun Sung KIM ; Myung Haing CHO
Toxicological Research 2012;28(1):25-31
The purpose of this study was to determine the acute pulmonary toxicity of metallic silver nanoparticles (MSNPs, 20.30 nm in diameter). Acute pulmonary toxicity and body distribution of inhaled MSNPs in mice were evaluated using a nose-only exposure chamber (NOEC) system. Bronchoalveolar lavage (BAL) fluid analysis, Western blotting, histopathological changes, and silver burdens in various organs were determined in mice. Mice were exposed to MSNPs for 6 hrs. The mean concentration, total surface area, volume and mass concentrations in the NOEC were maintained at 1.93 x 10(7) particles/cm3, 1.09 x 10(10) nm2/cm3, 2.72 x 10(11) nm3/cm3, and 2854.62 microg/m3, respectively. Inhalation of MSPNs caused mild pulmonary toxicity with distribution of silver in various organs but the silver burdens decreased rapidly at 24-hrs post-exposure in the lung. Furthermore, inhaled MSNPs induced activation of mitogen-activated protein kinase (MAPK) signaling in the lung. In summary, single inhaled MSNPs caused mild pulmonary toxicity, which was associated with activated MAPK signaling. Taken together, our results suggest that the inhalation toxicity of MSNPs should be carefully considered at the molecular level.
Animals
;
Blotting, Western
;
Bronchoalveolar Lavage
;
Inhalation
;
Lung
;
Mice
;
Nanoparticles
;
Protein Kinases
;
Silver

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