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Kim EY, Do SI, Yun JS, Park YL, Park CH, Moon JH, Youn I, Choi YJ, Ham SY, Kook SH. Preoperative evaluation of mammographic microcalcifications after neoadjuvant chemotherapy for breast cancer. Clin Radiol 2020; 75:641.e19-641.e27. [PMID: 32291081 DOI: 10.1016/j.crad.2020.03.024] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2019] [Accepted: 03/11/2020] [Indexed: 12/20/2022]
Abstract
AIM To assess the predictive value of preoperative residual mammographic microcalcifications for residual tumours after neoadjuvant chemotherapy (NAC) for breast cancer. MATERIALS AND METHODS This single-centre retrospective study included breast cancer patients who underwent NAC and demonstrated suspicious microcalcifications within or near the tumour bed on mammography from June 2015 to August 2018. The residual microcalcifications and remnant lesion on magnetic resonance imaging (MRI) were correlated with histopathological findings of residual tumours and immunohistochemical markers. RESULTS A total of 96 patients were included. Ten patients achieved pathological complete response (pCR) and previous suspicious microcalcifications were associated with benign pathology in 10.4% (10/96) of the patients. In the remaining 86 patients who did not achieve pCR, 61.5% (59/96) of the residual microcalcifications were associated with invasive or in situ carcinoma and 28.1% (27/96) with benign pathology. Hormone receptor-positive (HR+) patients had the highest proportion of residual malignant microcalcifications compared to HR- patients (48.9% versus 13.5%, respectively; p=0.019). MRI correlated better than residual microcalcifications on mammography in predicting residual tumour extent in all subtypes (ICC=0.709 versus 0.365). MRI also showed higher correlation with residual tumour size for the HR-/HER2+ and HR-/HER2- subtype (ICC=0.925 and 0.876, respectively). CONCLUSION The extent of microcalcifications on mammography after NAC did not correlate with the extent of residual cancer in 38.5% of women. Regardless of the extent of microcalcifications, residual tumour extent on MRI after NAC and molecular subtype could be an accurate tool in evaluating residual cancer after NAC.
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Affiliation(s)
- E Y Kim
- Department of Surgery, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - S-I Do
- Department of Pathology, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea.
| | - J-S Yun
- Department of Surgery, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Y L Park
- Department of Surgery, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - C H Park
- Department of Surgery, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - J H Moon
- Department of Radiology, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - I Youn
- Department of Radiology, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Y J Choi
- Department of Radiology, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - S-Y Ham
- Department of Radiology, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - S H Kook
- Department of Radiology, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea.
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An JS, Rho YS, Moon JH, Lim YC. Notch1 inactivation promotes invasion and metastasis of nasopharyngeal carcinoma cells partly through Slug activation. Neoplasma 2019; 67:259-266. [PMID: 31777263 DOI: 10.4149/neo_2019_190313n220] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2019] [Accepted: 06/19/2019] [Indexed: 11/08/2022]
Abstract
Nasopharyngeal carcinoma (NPC) is a rare form of the head and neck cancer of the epithelial lining of the nasopharynx and exhibits the highest metastatic rate among head and neck cancers. Underlying mechanisms of metastasis remain largely unknown. Here, we explored whether Notch1 affects the invasion and metastasis of NPC cells. In vitro migration and invasion capacities were evaluated after the knockdown of Notch1 expression in NPC cells. To investigate the role of Notch1 in in vivo metastasis, we examined the metastatic ability to the lungs following administration of cancer cells via mouse tail vein. The expression of epithelial-mesenchymal transition (EMT) markers associated with Notch1-mediated metastasis was investigated, and their roles in metastasis and relationship with Notch1 expression were investigated. Suppression of Notch1 expression increased the ability of NPC cells to invade Matrigel in vitro. Knockdown of Notch1 expression in NPC cells resulted in extensive lung metastasis in a mouse model and increased the mRNA expression of Slug in NPC cells. Slug-specific RNA interference resulted in the loss of the metastatic and invasion capacities in Notch1-suppressed NPC cells. These findings show that Notch1 has a significant suppressive role in the regulation of metastasis in NPCs, suggestive of its prudent use in clinical trials.
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Affiliation(s)
- J S An
- Department of Otorhinolaryngology - Head and Neck Surgery, School of Medicine, Konkuk University, Seoul, South Korea
| | - Y S Rho
- Department of Otorhinolaryngology - Head and Neck Surgery, College of Medicine, Hallym University, Seoul, South Korea
| | - J H Moon
- Department of Otorhinolaryngology - Head and Neck Surgery, School of Medicine, Konkuk University, Seoul, South Korea
| | - Y C Lim
- Department of Otorhinolaryngology - Head and Neck Surgery, School of Medicine, Konkuk University, Seoul, South Korea
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Moon JH, Huh JS, Won CW, Kim HJ. Is Polypharmacy Associated with Cognitive Frailty in the Elderly? Results from the Korean Frailty and Aging Cohort Study. J Nutr Health Aging 2019; 23:958-965. [PMID: 31781725 DOI: 10.1007/s12603-019-1274-y] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
OBJECTIVES Cognitive frailty-the coexistence of physical frailty and cognitive impairment-is a phenotype of frailty in the elderly. The coexistence of physical frailty and cognitive impairment, known as cognitive frailty, is one of the phenotypes of frailty in the elderly. Cognitive frailty predicts adverse health outcome more accurately than does physical frailty. In this study, we aim to determine whether the polypharmacy common among the elderly is linked with cognitive frailty. DESIGN, SETTING, AND PARTICIPANTS The elderly, aged between 70 and 84 years, who participated in the cross-sectional Korean Frailty and Aging Cohort Study were included in the present study. MEASUREMENTS Polypharmacy and hyperpolypharmacy were defined as the use of at least five and ten medications, respectively. Physical frailty was assessed by the Korean version of the FRAIL scale, and cognitive status was measured by the Trail Making Test part A, word list recall test, the Korean version of the Frontal Assessment Battery, and the Digit Span Backward test. RESULTS Among the 2,392 participants, 26.8% and 4.1% took more than five and ten prescribed medications, respectively. Polypharmacy and hyperpolypharmacy participants tend to have more cognitive impairment and physical frailty. Participants with cognitive frailty had the highest polypharmacy rate regardless of medication type. After controlling for the potential confounders including severity of comorbidities, frailty was found to be significantly related to polypharmacy, as defined by prescribed as well as total medications, including non-prescribed medications. However, cognitive impairment only showed a linkage to polypharmacy of prescribed medications, which-according to the results of multivariable analysis- could increase cognitive frailty, with an odds ratio of 2.70. CONCLUSION Although the elderly tend to depend on various medications, they should seriously consider the risk of polypharmacy for better health outcomes.
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Affiliation(s)
- J H Moon
- Chang Won Won and Hyeon Ju Kim, Department of Family Medicine, Jeju National University School of Medicine, Jeju, Republic of Korea, ; Tel.: +82-64-754-8153 (H.J.K.), ; Tel.:+82-2-958-8700 (C.W.W.)
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Sun B, Moon JH, Cai Q, Rerknimitr R, Ma S, Lakhtakia S, Ryozawa S, Kutsumi H, Yasuda I, Shiomi H, Li X, Li W, Zhang X, Itoi T, Wang HP, Qian D, Wong Lau JY, Yang Z, Ji M, Hu B. Review article: Asia-Pacific consensus recommendations on endoscopic tissue acquisition for biliary strictures. Aliment Pharmacol Ther 2018; 48:138-151. [PMID: 29876948 DOI: 10.1111/apt.14811] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/03/2018] [Revised: 03/23/2018] [Accepted: 04/26/2018] [Indexed: 12/12/2022]
Abstract
BACKGROUND Pre-operative tissue diagnosis for suspected malignant biliary strictures remains challenging. AIM To develop evidence-based consensus statements on endoscopic tissue acquisition for biliary strictures. METHODS The initial draft of statements was prepared following a systematic literature review. A committee of 20 experts from Asia-Pacific region then reviewed, discussed, and modified the statements. Two rounds of independent voting were conducted to reach a final version. Consensus was considered to be achieved when 80% or more of voting members voted "agree completely" or "agree with some reservation." RESULTS Eleven statements achieved consensus. The choice of tissue sampling modalities for biliary strictures depends on the clinical setting, the location of lesion, and availability of expertise. Detailed radiological and endoscopic evaluation is useful to guide the selection of appropriate tissue acquisition technique. Standard intraductal biliary brushing and/or forceps biopsy is the first option when endoscopic biliary drainage is required with an overall (range) sensitivity and specificity of 45% (26%-72%) and 99% (98%-100%), and 48% (15%-100%) and 99% (97%-100%), respectively, in diagnosing malignant biliary strictures. Probe-based confocal laser endomicroscopy and fluorescence in situ hybridisation using 4 fluorescent-labelled probes targeting chromosomes 3, 7, 17 and 9p21 locus may be added to improve the diagnostic yield. Cholangioscopy-guided biopsy and EUS-guided tissue acquisition can be considered after prior negative conventional tissue sampling with an overall (range) sensitivity and specificity of 60% (38%-88%) and 98% (83%-100%), and 80% (46%-100%) and 97% (92%-100%), respectively, in diagnosing malignant biliary strictures. CONCLUSION These consensus statements provide evidence-based recommendations for endoscopic tissue acquisition of biliary strictures.
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Shin DY, Lee JH, Park S, Lee JO, Moon JH, Ahn JS, Choi Y, Song IC, Shin HJ, Lee WS, Lee HS, Yoon SS. Role of thymoglobulin in matched sibling allogeneic hematopoietic stem cell transplantation with busulfan and fludarabine conditioning in myeloid malignanicies. Bone Marrow Transplant 2017; 53:207-212. [PMID: 29084202 DOI: 10.1038/bmt.2017.240] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2017] [Revised: 09/15/2017] [Accepted: 09/18/2017] [Indexed: 12/22/2022]
Abstract
In vivo T-cell depletion using anti-thymocyte globulin (ATG) is widely used in allogeneic hematopoietic stem cell transplantation (HSCT) for prophylaxis of GvHD. We investigated the influence of thymoglobulin dose (an ATG) on GvHD following matched sibling donor (MSD) HSCT with a busulfan and fludarabine preparative regimen. Medical records of 180 patients who received MSD HSCT with a conditioning regimen of busulfan, fludarabine, and ATG (BuFluATG) were reviewed retrospectively. The median age was 53 years (range 18-68). Initial diagnoses were acute myeloid leukemia (73.3%) and myelodysplastic syndrome (26.7%). Forty-four and 68 patients (24.4 and 37.7%) experienced acute and chronic GvHD of any grade, respectively. High-dose (⩾4.5 mg/kg) ATG was independently associated with decreased risk of acute GvHD (hazard ratio=0.36, 95% confidence interval (CI): 0.15-0.84, P=0.019) compared to low-dose ATG (<4.5 mg/kg). Although ATG dose was associated with the risk of acute GvHD, it was not associated with the risk of chronic GvHD in our study. A higher dose (⩾4.5 mg/kg) of ATG decreases the risk of acute GvHD but had no significant impact on disease-free survival in MSD HSCT patients conditioned with BuFluATG. The optimal dose of ATG should be further investigated in a large prospective study context.
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Affiliation(s)
- D-Y Shin
- Department of Internal Medicine, Seoul National University Hospital, Seoul, South Korea.,Cancer Research Institute, Seoul National University College of Medicine, Seoul, South Korea
| | - J-H Lee
- Department of Hematology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea
| | - S Park
- Division of Hematology-Oncology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea
| | - J-O Lee
- Department of Internal Medicine, Seoul National University Bundang Hospital, Gyeonggi, South Korea
| | - J-H Moon
- Department of Hematology, Kyungpook National University Hospital, Daegu, South Korea
| | - J-S Ahn
- Department of Internal Medicine, Chonnam National University Hwasun Hospital, Hwasun, South Korea
| | - Y Choi
- Department of Internal Medicine, Ulsan University Hospital, Ulsan, South Korea
| | - I-C Song
- Department of Internal Medicine, Chungnam National University Hospital, Daejeon, South Korea
| | - H-J Shin
- Department of Internal Medicine, Busan National University Hospital, Busan, South Korea
| | - W S Lee
- Department of Internal Medicine, Busan Paik Hospital, Busan, South Korea
| | - H S Lee
- Department of Internal Medicine, Kosin University Gospel Hospital, Busan, South Korea
| | - S-S Yoon
- Department of Internal Medicine, Seoul National University Hospital, Seoul, South Korea.,Cancer Research Institute, Seoul National University College of Medicine, Seoul, South Korea
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Jung SA, Lee DH, Moon JH, Hong SW, Shin JS, Hwang IY, Shin YJ, Kim JH, Gong EY, Kim SM, Lee EY, Lee S, Kim JE, Kim KP, Hong YS, Lee JS, Jin DH, Kim T, Lee WJ. Corrigendum to 'L-Ascorbic acid can abrogate SVCT-2-dependent cetuximab resistance mediated by mutant KRAS in human colon cancer cells': [Free Radic. Biol. Med. 95 (2016) 200-208]. Free Radic Biol Med 2016; 97:620. [PMID: 27476024 DOI: 10.1016/j.freeradbiomed.2016.07.017] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Affiliation(s)
- S A Jung
- Department of Oncology, University of Ulsan College of Medicine, Asan Medical Center, 88 Olympicro-43gil, Songpa-gu, Seoul, Republic of Korea; Innovative Cancer Research, Asan Institute for Life Science, Asan Medical Center, 88 Olympicro-43gil, Songpa-gu, Seoul, Republic of Korea
| | - D H Lee
- Department of Oncology, University of Ulsan College of Medicine, Asan Medical Center, 88 Olympicro-43gil, Songpa-gu, Seoul, Republic of Korea; Innovative Cancer Research, Asan Institute for Life Science, Asan Medical Center, 88 Olympicro-43gil, Songpa-gu, Seoul, Republic of Korea; Biomedical Science and Engineering Interdisciplinary Program, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, Republic of Korea
| | - J H Moon
- Department of Oncology, University of Ulsan College of Medicine, Asan Medical Center, 88 Olympicro-43gil, Songpa-gu, Seoul, Republic of Korea; Innovative Cancer Research, Asan Institute for Life Science, Asan Medical Center, 88 Olympicro-43gil, Songpa-gu, Seoul, Republic of Korea
| | - S W Hong
- Department of Oncology, University of Ulsan College of Medicine, Asan Medical Center, 88 Olympicro-43gil, Songpa-gu, Seoul, Republic of Korea; Innovative Cancer Research, Asan Institute for Life Science, Asan Medical Center, 88 Olympicro-43gil, Songpa-gu, Seoul, Republic of Korea
| | - J S Shin
- Department of Oncology, University of Ulsan College of Medicine, Asan Medical Center, 88 Olympicro-43gil, Songpa-gu, Seoul, Republic of Korea; Innovative Cancer Research, Asan Institute for Life Science, Asan Medical Center, 88 Olympicro-43gil, Songpa-gu, Seoul, Republic of Korea
| | - I Y Hwang
- Department of Oncology, University of Ulsan College of Medicine, Asan Medical Center, 88 Olympicro-43gil, Songpa-gu, Seoul, Republic of Korea; Innovative Cancer Research, Asan Institute for Life Science, Asan Medical Center, 88 Olympicro-43gil, Songpa-gu, Seoul, Republic of Korea
| | - Y J Shin
- Department of Oncology, University of Ulsan College of Medicine, Asan Medical Center, 88 Olympicro-43gil, Songpa-gu, Seoul, Republic of Korea; Innovative Cancer Research, Asan Institute for Life Science, Asan Medical Center, 88 Olympicro-43gil, Songpa-gu, Seoul, Republic of Korea
| | - J H Kim
- Department of Oncology, University of Ulsan College of Medicine, Asan Medical Center, 88 Olympicro-43gil, Songpa-gu, Seoul, Republic of Korea; Innovative Cancer Research, Asan Institute for Life Science, Asan Medical Center, 88 Olympicro-43gil, Songpa-gu, Seoul, Republic of Korea
| | - E Y Gong
- Department of Oncology, University of Ulsan College of Medicine, Asan Medical Center, 88 Olympicro-43gil, Songpa-gu, Seoul, Republic of Korea; Innovative Cancer Research, Asan Institute for Life Science, Asan Medical Center, 88 Olympicro-43gil, Songpa-gu, Seoul, Republic of Korea
| | - S M Kim
- Department of Oncology, University of Ulsan College of Medicine, Asan Medical Center, 88 Olympicro-43gil, Songpa-gu, Seoul, Republic of Korea; Innovative Cancer Research, Asan Institute for Life Science, Asan Medical Center, 88 Olympicro-43gil, Songpa-gu, Seoul, Republic of Korea
| | - E Y Lee
- Department of Oncology, University of Ulsan College of Medicine, Asan Medical Center, 88 Olympicro-43gil, Songpa-gu, Seoul, Republic of Korea; Innovative Cancer Research, Asan Institute for Life Science, Asan Medical Center, 88 Olympicro-43gil, Songpa-gu, Seoul, Republic of Korea
| | - S Lee
- Department of Oncology, University of Ulsan College of Medicine, Asan Medical Center, 88 Olympicro-43gil, Songpa-gu, Seoul, Republic of Korea; Innovative Cancer Research, Asan Institute for Life Science, Asan Medical Center, 88 Olympicro-43gil, Songpa-gu, Seoul, Republic of Korea
| | - J E Kim
- Department of Oncology, University of Ulsan College of Medicine, Asan Medical Center, 88 Olympicro-43gil, Songpa-gu, Seoul, Republic of Korea; Innovative Cancer Research, Asan Institute for Life Science, Asan Medical Center, 88 Olympicro-43gil, Songpa-gu, Seoul, Republic of Korea
| | - K P Kim
- Department of Oncology, University of Ulsan College of Medicine, Asan Medical Center, 88 Olympicro-43gil, Songpa-gu, Seoul, Republic of Korea; Innovative Cancer Research, Asan Institute for Life Science, Asan Medical Center, 88 Olympicro-43gil, Songpa-gu, Seoul, Republic of Korea
| | - Y S Hong
- Department of Oncology, University of Ulsan College of Medicine, Asan Medical Center, 88 Olympicro-43gil, Songpa-gu, Seoul, Republic of Korea; Innovative Cancer Research, Asan Institute for Life Science, Asan Medical Center, 88 Olympicro-43gil, Songpa-gu, Seoul, Republic of Korea
| | - J S Lee
- Department of Oncology, University of Ulsan College of Medicine, Asan Medical Center, 88 Olympicro-43gil, Songpa-gu, Seoul, Republic of Korea; Innovative Cancer Research, Asan Institute for Life Science, Asan Medical Center, 88 Olympicro-43gil, Songpa-gu, Seoul, Republic of Korea
| | - D H Jin
- Department of Oncology, University of Ulsan College of Medicine, Asan Medical Center, 88 Olympicro-43gil, Songpa-gu, Seoul, Republic of Korea; Innovative Cancer Research, Asan Institute for Life Science, Asan Medical Center, 88 Olympicro-43gil, Songpa-gu, Seoul, Republic of Korea; Department of Convergence Medicine, University of Ulsan College of Medicine, Asan Medical Center, 88 Olympicro-43gil, Songpa-gu, Seoul, Republic of Korea.
| | - T Kim
- Department of Oncology, University of Ulsan College of Medicine, Asan Medical Center, 88 Olympicro-43gil, Songpa-gu, Seoul, Republic of Korea; Innovative Cancer Research, Asan Institute for Life Science, Asan Medical Center, 88 Olympicro-43gil, Songpa-gu, Seoul, Republic of Korea.
| | - W J Lee
- Department of Anatomy and Tumor Immunity Medical Research Center, Seoul National University College of Medicine, Seoul 110-744, Republic of Korea
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Kim KM, Kim YJ, Choi SH, Lim S, Moon JH, Kim JH, Kim SW, Jang HC, Shin CS. The effects of body mass index on the hereditary influences that determine peak bone mass in mother-daughter pairs (KNHANES V). Osteoporos Int 2016; 27:2057-64. [PMID: 26809191 DOI: 10.1007/s00198-016-3487-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/22/2015] [Accepted: 01/06/2016] [Indexed: 12/26/2022]
Abstract
UNLABELLED A daughter's bone mineral density (BMD) is significantly correlated with her mother's BMD, but the daughter's body mass index (BMI) could modulate this association. Maternal inheritance dominantly affects daughters with a lower BMI, but BMI could compensate for hereditary influences in daughters with a higher BMI in terms of daughter's BMD. INTRODUCTION Achieving optimal peak bone mass at a young age is the best way to protect against future osteoporosis and subsequent fractures. Although environmental components influence bone mass accrual, but peak bone mass is largely programmed by inheritance. The aims of this study were to investigate the influence of maternal inheritance on the daughter's bone mass and to assess whether these influences differ according to the daughter's body mass index (BMI). METHODS We used data obtained from the 2010 Korean National Health and Nutrition Examination Survey V and included 187 mother-daughter pairs. Bone mineral density (BMD) was measured at the lumbar spine (LS), femur neck (FN), and total hip (TH) by using dual-energy X-ray absorptiometry (DXA). The daughter group was stratified into two groups according to the mean BMI (21.4 kg/m(2)). RESULTS The daughters' BMD correlated significantly with both their BMI and their mothers' Z-score for each skeletal site. In the daughters with a lower BMI (≤21.4 kg/m(2)), the BMDs at the FN and TH were affected more by the mothers' Z-score than by the daughters' BMI. Meanwhile, the influence of the daughters' BMI on their BMD was higher than that of their mothers' Z-score in daughters with a higher BMI (>21.4 kg/m(2)). Moreover, the mothers' Z-scores were a significant predictor of their daughters having Z-scores < -1.0 only in daughters with a lower BMI. CONCLUSIONS This study suggests that maternal inheritance is an important determinant of the daughters' bone mass, but that this hereditary factor may vary according to the daughters' BMI.
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Affiliation(s)
- K M Kim
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Korea
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea
| | - Y J Kim
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Korea
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea
| | - S H Choi
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Korea
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea
| | - S Lim
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Korea
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea
| | - J H Moon
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Korea
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea
| | - J H Kim
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea
- Department of Internal Medicine, Seoul National University Hospital, Seoul, Korea
| | - S W Kim
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea
- Department of Internal Medicine, Seoul National University Borame Hospital, Seoul, Korea
| | - H C Jang
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Korea
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea
| | - C S Shin
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea.
- Department of Internal Medicine, Seoul National University Hospital, Seoul, Korea.
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Kim JE, Shin JS, Moon JH, Hong SW, Jung DJ, Kim JH, Hwang IY, Shin YJ, Gong EY, Lee DH, Kim SM, Lee EY, Kim YS, Kim D, Hur D, Kim TW, Kim KP, Jin DH, Lee WJ. Foxp3 is a key downstream regulator of p53-mediated cellular senescence. Oncogene 2016; 36:219-230. [DOI: 10.1038/onc.2016.193] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2015] [Revised: 04/18/2016] [Accepted: 04/26/2016] [Indexed: 11/09/2022]
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Jais B, Rebours V, Malleo G, Salvia R, Fontana M, Maggino L, Bassi C, Manfredi R, Moran R, Lennon AM, Zaheer A, Wolfgang C, Hruban R, Marchegiani G, Fernández Del Castillo C, Brugge W, Ha Y, Kim MH, Oh D, Hirai I, Kimura W, Jang JY, Kim SW, Jung W, Kang H, Song SY, Kang CM, Lee WJ, Crippa S, Falconi M, Gomatos I, Neoptolemos J, Milanetto AC, Sperti C, Ricci C, Casadei R, Bissolati M, Balzano G, Frigerio I, Girelli R, Delhaye M, Bernier B, Wang H, Jang KT, Song DH, Huggett MT, Oppong KW, Pererva L, Kopchak KV, Del Chiaro M, Segersvard R, Lee LS, Conwell D, Osvaldt A, Campos V, Aguero Garcete G, Napoleon B, Matsumoto I, Shinzeki M, Bolado F, Fernandez JMU, Keane MG, Pereira SP, Acuna IA, Vaquero EC, Angiolini MR, Zerbi A, Tang J, Leong RW, Faccinetto A, Morana G, Petrone MC, Arcidiacono PG, Moon JH, Choi HJ, Gill RS, Pavey D, Ouaïssi M, Sastre B, Spandre M, De Angelis CG, Rios-Vives MA, Concepcion-Martin M, Ikeura T, Okazaki K, Frulloni L, Messina O, Lévy P. Serous cystic neoplasm of the pancreas: a multinational study of 2622 patients under the auspices of the International Association of Pancreatology and European Pancreatic Club (European Study Group on Cystic Tumors of the Pancreas). Gut 2016; 65:305-12. [PMID: 26045140 DOI: 10.1136/gutjnl-2015-309638] [Citation(s) in RCA: 173] [Impact Index Per Article: 21.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/22/2015] [Accepted: 05/11/2015] [Indexed: 02/07/2023]
Abstract
OBJECTIVES Serous cystic neoplasm (SCN) is a cystic neoplasm of the pancreas whose natural history is poorly known. The purpose of the study was to attempt to describe the natural history of SCN, including the specific mortality. DESIGN Retrospective multinational study including SCN diagnosed between 1990 and 2014. RESULTS 2622 patients were included. Seventy-four per cent were women, and median age at diagnosis was 58 years (16-99). Patients presented with non-specific abdominal pain (27%), pancreaticobiliary symptoms (9%), diabetes mellitus (5%), other symptoms (4%) and/or were asymptomatic (61%). Fifty-two per cent of patients were operated on during the first year after diagnosis (median size: 40 mm (2-200)), 9% had resection beyond 1 year of follow-up (3 years (1-20), size at diagnosis: 25 mm (4-140)) and 39% had no surgery (3.6 years (1-23), 25.5 mm (1-200)). Surgical indications were (not exclusive) uncertain diagnosis (60%), symptoms (23%), size increase (12%), large size (6%) and adjacent organ compression (5%). In patients followed beyond 1 year (n=1271), size increased in 37% (growth rate: 4 mm/year), was stable in 57% and decreased in 6%. Three serous cystadenocarcinomas were recorded. Postoperative mortality was 0.6% (n=10), and SCN's related mortality was 0.1% (n=1). CONCLUSIONS After a 3-year follow-up, clinical relevant symptoms occurred in a very small proportion of patients and size slowly increased in less than half. Surgical treatment should be proposed only for diagnosis remaining uncertain after complete workup, significant and related symptoms or exceptionally when exists concern with malignancy. This study supports an initial conservative management in the majority of patients with SCN. TRIAL REGISTRATION NUMBER IRB 00006477.
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Affiliation(s)
- B Jais
- Department of Gastroenterology and Pancreatology, Beaujon Hospital, AP-HP, Clichy, France
| | - V Rebours
- Department of Gastroenterology and Pancreatology, Beaujon Hospital, AP-HP, Clichy, France
| | - G Malleo
- The Pancreas Institute, G.B. Rossi Hospital, University of Verona Hospital Trust, Verona, Italy
| | - R Salvia
- The Pancreas Institute, G.B. Rossi Hospital, University of Verona Hospital Trust, Verona, Italy
| | - M Fontana
- The Pancreas Institute, G.B. Rossi Hospital, University of Verona Hospital Trust, Verona, Italy
| | - L Maggino
- The Pancreas Institute, G.B. Rossi Hospital, University of Verona Hospital Trust, Verona, Italy
| | - C Bassi
- The Pancreas Institute, G.B. Rossi Hospital, University of Verona Hospital Trust, Verona, Italy
| | - R Manfredi
- The Pancreas Institute, G.B. Rossi Hospital, University of Verona Hospital Trust, Verona, Italy
| | - R Moran
- Division of Gastroenterology and Hepatology, The Johns Hopkins University School of Medicine, Baltimore, Maryland, USA Division of Surgery, The Johns Hopkins University School of Medicine, Baltimore, Maryland, USA Department of Pathology, The Sol Goldman Pancreatic Cancer Research Center, The Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - A M Lennon
- Division of Gastroenterology and Hepatology, The Johns Hopkins University School of Medicine, Baltimore, Maryland, USA Division of Surgery, The Johns Hopkins University School of Medicine, Baltimore, Maryland, USA Department of Pathology, The Sol Goldman Pancreatic Cancer Research Center, The Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - A Zaheer
- Division of Gastroenterology and Hepatology, The Johns Hopkins University School of Medicine, Baltimore, Maryland, USA Division of Surgery, The Johns Hopkins University School of Medicine, Baltimore, Maryland, USA Department of Pathology, The Sol Goldman Pancreatic Cancer Research Center, The Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - C Wolfgang
- Division of Gastroenterology and Hepatology, The Johns Hopkins University School of Medicine, Baltimore, Maryland, USA Division of Surgery, The Johns Hopkins University School of Medicine, Baltimore, Maryland, USA Department of Pathology, The Sol Goldman Pancreatic Cancer Research Center, The Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - R Hruban
- Division of Gastroenterology and Hepatology, The Johns Hopkins University School of Medicine, Baltimore, Maryland, USA Division of Surgery, The Johns Hopkins University School of Medicine, Baltimore, Maryland, USA Department of Pathology, The Sol Goldman Pancreatic Cancer Research Center, The Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - G Marchegiani
- Departments of Surgery and Pathology, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - C Fernández Del Castillo
- Departments of Surgery and Pathology, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - W Brugge
- Departments of Surgery and Pathology, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Y Ha
- Department of Gastroenterology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - M H Kim
- Department of Gastroenterology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - D Oh
- Department of Gastroenterology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - I Hirai
- First Department of Surgery, Yamagata University Faculty of Medicine, Yamagata, Japan
| | - W Kimura
- First Department of Surgery, Yamagata University Faculty of Medicine, Yamagata, Japan
| | - J Y Jang
- Department of Surgery, Seoul National University College of Medicine, Seoul, Korea
| | - S W Kim
- Department of Surgery, Seoul National University College of Medicine, Seoul, Korea
| | - W Jung
- Department of Surgery, Seoul National University College of Medicine, Seoul, Korea
| | - H Kang
- Division of Gastroenterology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea
| | - S Y Song
- Division of Gastroenterology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea
| | - C M Kang
- Department of Surgery, Yonsei University College of Medicine, Pancreaticobiliary Cancer Clinic, Yonsei Cancer Center, Severance Hospital, Seoul, Korea
| | - W J Lee
- Department of Surgery, Yonsei University College of Medicine, Pancreaticobiliary Cancer Clinic, Yonsei Cancer Center, Severance Hospital, Seoul, Korea
| | - S Crippa
- Pancreatic Surgery Unit, Department of Surgery, Polytechnic University of Marche Region, Ancona-Torrette, Italy
| | - M Falconi
- Pancreatic Surgery Unit, Department of Surgery, Polytechnic University of Marche Region, Ancona-Torrette, Italy
| | - I Gomatos
- NIHR Pancreas Biomedical Research Unit, Department of Molecular and Clinical Cancer Medicine, Royal Liverpool University Hospital, Institute of Translational Medicine, University of Liverpool, Liverpool, UK
| | - J Neoptolemos
- NIHR Pancreas Biomedical Research Unit, Department of Molecular and Clinical Cancer Medicine, Royal Liverpool University Hospital, Institute of Translational Medicine, University of Liverpool, Liverpool, UK
| | - A C Milanetto
- Department of Surgery, Oncology and Gastroenterology, 3rd Surgical Clinic, University of Padua, Padua, Italy
| | - C Sperti
- Department of Surgery, Oncology and Gastroenterology, 3rd Surgical Clinic, University of Padua, Padua, Italy
| | - C Ricci
- Department of Medical and Surgical Sciences (DIMEC), Alma Mater Studiorum-University of Bologna, S. Orsola-Malpighi Hospital, Bologna, Italy
| | - R Casadei
- Department of Medical and Surgical Sciences (DIMEC), Alma Mater Studiorum-University of Bologna, S. Orsola-Malpighi Hospital, Bologna, Italy
| | - M Bissolati
- Pancreatic Surgery Unit, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - G Balzano
- Pancreatic Surgery Unit, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - I Frigerio
- Hepato-Pancreato-Biliary Unit, Pederzoli Hospital, Peschiera del Garda, Italy
| | - R Girelli
- Hepato-Pancreato-Biliary Unit, Pederzoli Hospital, Peschiera del Garda, Italy
| | - M Delhaye
- Department of Gastroenterology, Hepatopancreatology and GI Oncology, Erasme University Hospital, Université Libre de Bruxelles, Brussels, Belgium
| | - B Bernier
- Department of Gastroenterology, Hepatopancreatology and GI Oncology, Erasme University Hospital, Université Libre de Bruxelles, Brussels, Belgium
| | - H Wang
- Institute of Hepatopancreatobiliary Surgery, Southwest Hospital, Third Military Medical University, Chongqing, China
| | - K T Jang
- Department of Pathology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - D H Song
- Department of Pathology, Gyeongsang National University School of Medicine, Jinju, Korea
| | - M T Huggett
- Hepato-Pancreato-Biliary Unit, Freeman Hospital, Newcastle upon Tyne, UK
| | - K W Oppong
- Hepato-Pancreato-Biliary Unit, Freeman Hospital, Newcastle upon Tyne, UK
| | - L Pererva
- National Institute of Surgery and Transplantology named after Shalimov, Kiev, Ukraine
| | - K V Kopchak
- National Institute of Surgery and Transplantology named after Shalimov, Kiev, Ukraine
| | - M Del Chiaro
- Division of Surgery, Department of Clinical Science, Intervention and Technology (CLINTEC), Karolinska Institutet at Center for Digestive Diseases, Karolinska University Hospital, Stockholm, Sweden
| | - R Segersvard
- Division of Surgery, Department of Clinical Science, Intervention and Technology (CLINTEC), Karolinska Institutet at Center for Digestive Diseases, Karolinska University Hospital, Stockholm, Sweden
| | - L S Lee
- Division of Gastroenterology, Brigham and Women's Hospital, Boston, Massachusetts, USA
| | - D Conwell
- Division of Gastroenterology, Brigham and Women's Hospital, Boston, Massachusetts, USA
| | - A Osvaldt
- Hospital de Clínicas de Porto Alegre, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - V Campos
- Hospital de Clínicas de Porto Alegre, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | | | - B Napoleon
- Hôpital Privé Mermoz, Gastroentérologie, Lyon, France
| | - I Matsumoto
- Division of Hepato-Biliary-Pancreatic Surgery, Department of Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - M Shinzeki
- Division of Hepato-Biliary-Pancreatic Surgery, Department of Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - F Bolado
- Gastroenterology Department, Hospital de Navarra, Pamplona, Spain
| | | | - M G Keane
- Department of Gastroenterology and Hepatology, University College Hospital, London, UK
| | - S P Pereira
- Department of Gastroenterology and Hepatology, University College Hospital, London, UK
| | - I Araujo Acuna
- Department of Gastroenterology, Hospital Clinic, CIBEREHD, IDIBAPS, University of Barcelona, Barcelona, Spain
| | - E C Vaquero
- Department of Gastroenterology, Hospital Clinic, CIBEREHD, IDIBAPS, University of Barcelona, Barcelona, Spain
| | - M R Angiolini
- Department of Pancreatic Surgery, Humanitas Research Hospital, Rozzano, Milan, Italy
| | - A Zerbi
- Department of Pancreatic Surgery, Humanitas Research Hospital, Rozzano, Milan, Italy
| | - J Tang
- Gastroenterology and Liver Services, Concord Hospital, Sydney, New South Wales, Australia
| | - R W Leong
- Gastroenterology and Liver Services, Concord Hospital, Sydney, New South Wales, Australia
| | - A Faccinetto
- Radiological Department, General Hospital Cá Foncello, Treviso, Italy
| | - G Morana
- Radiological Department, General Hospital Cá Foncello, Treviso, Italy
| | - M C Petrone
- Division of Gastroenterology and Gastrointestinal Endoscopy, San Raffaele Scientific Institute, Milan, Italy
| | - P G Arcidiacono
- Division of Gastroenterology and Gastrointestinal Endoscopy, San Raffaele Scientific Institute, Milan, Italy
| | - J H Moon
- Department of Internal Medicine, Digestive Disease Center and Research Institute, SoonChunHyang University School of Medicine, Bucheon, Korea
| | - H J Choi
- Department of Internal Medicine, Digestive Disease Center and Research Institute, SoonChunHyang University School of Medicine, Bucheon, Korea
| | - R S Gill
- Department of Gastroenterology, Bankstown-Lidcombe Hospital, Bankstown, New South Wales, Australia
| | - D Pavey
- Department of Gastroenterology, Bankstown-Lidcombe Hospital, Bankstown, New South Wales, Australia
| | - M Ouaïssi
- Department of Digestive Surgery, Timone Hospital, Marseille, France
| | - B Sastre
- Department of Digestive Surgery, Timone Hospital, Marseille, France
| | - M Spandre
- Gastrohepatology Department, San Giovanni Battista Molinette Hospital, University of Turin, Turin, Italy
| | - C G De Angelis
- Gastrohepatology Department, San Giovanni Battista Molinette Hospital, University of Turin, Turin, Italy
| | - M A Rios-Vives
- Gastroenterology Department, Hospital de la Santa Creu i Sant Pau, Institut de Reçerca-IIB Sant Pau, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - M Concepcion-Martin
- Gastroenterology Department, Hospital de la Santa Creu i Sant Pau, Institut de Reçerca-IIB Sant Pau, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - T Ikeura
- The Third Department of Internal Medicine, Division of Gastroenterology and Hepatology, Kansai Medical University, Osaka, Japan
| | - K Okazaki
- The Third Department of Internal Medicine, Division of Gastroenterology and Hepatology, Kansai Medical University, Osaka, Japan
| | - L Frulloni
- Department of Medicine, Pancreas Center, University of Verona, Verona, Italy
| | - O Messina
- Department of Medicine, Pancreas Center, University of Verona, Verona, Italy
| | - P Lévy
- Department of Gastroenterology and Pancreatology, Beaujon Hospital, AP-HP, Clichy, France
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Moon JH, Moon JH, Kim KM, Choi SH, Lim S, Park KS, Kim KW, Jang HC. Sarcopenia as a Predictor of Future Cognitive Impairment in Older Adults. J Nutr Health Aging 2016; 20:496-502. [PMID: 27102786 DOI: 10.1007/s12603-015-0613-x] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
OBJECTIVES We investigated the association between the indices of sarcopenia and future risk of cognitive impairment in older adults. DESIGN Community-based prospective cohort study. SETTING Community. PARTICIPANTS A total of 297 participants aged ≥65 years without cognitive impairment at baseline (mean age, 71.9 ± 6.6 years; men:women, 158:139) and who underwent cognitive evaluation at the 5-year follow-up. MEASUREMENTS Sarcopenia parameters including appendicular lean mass (ALM), handgrip strength, and the Short Physical Performance Battery (SPPB) score at baseline were compared according to the later progression of mild cognitive impairment (MCI) and/or dementia. The operational criteria suggested by the Foundation for the National Institutes of Health Sarcopenia Project were used. We performed multivariate logistic regression analysis to identify the independent indicators of the progression of cognitive impairment. RESULTS Among the 297 participants, 242 (81.5%) remained cognitively normal (nonprogression group), whereas 55 (18.5%) showed progression of cognitive impairment (50 subjects (16.8%) to MCI and 5 subjects (1.7%) to dementia) (progression group). Compared with the nonprogression group, subjects in the progression group were older, had a lower educational level, and had lower physical function as assessed by the SPPB; a higher percentage were depressed. Other baseline markers of sarcopenia, including the ALM-to-body mass index ratio and handgrip strength did not differ significantly between the groups. The association between a low SPPB score (<9) and progression of cognitive impairment was maintained after adjustment for conventional risk factors for cognitive impairment (hazard ratio 2.222, 95% confidence interval 1.047-4.716, P = 0.038). CONCLUSION Decreased physical performance, as assessed by the SPPB, but not other markers of sarcopenia, was independently associated with the risk of later cognitive impairment in older adults.
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Affiliation(s)
- J H Moon
- Hak Chul Jang, MD, PhD, Department of Internal Medicine, Seoul National University Bundang Hospital, 82, Gumi-ro, 173 beon-gil, Bundang-gu, Seongnam, Gyeonggi-do, 463-707, Korea, Tel: +82-31-787-7005, Fax: +82-31-787-4051, E-mail:
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Ham JY, Yoon CE, Moon JH, Won DI, Suh JS. Identification of a novel HLA-B*15 variant, B*15:367, using sequence-based typing in a Korean woman. ACTA ACUST UNITED AC 2015; 86:451-2. [PMID: 26514328 DOI: 10.1111/tan.12687] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2015] [Revised: 09/08/2015] [Accepted: 09/28/2015] [Indexed: 11/29/2022]
Abstract
New allele, B*15:367, differs from B*15:11:01 by a single nucleotide exchange at codon 222 (GAG→AAG).
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Affiliation(s)
- J Y Ham
- Department of Laboratory Medicine, Kyungpook National University Hospital, Daegu, Korea
| | - C E Yoon
- Department of Molecular Genetics, Biowithus Life Science Institute, Seoul, Korea
| | - J H Moon
- Department of Hematology/Oncology, Kyungpook National University Hospital, Daegu, Korea
| | - D I Won
- Department of Laboratory Medicine, Kyungpook National University Hospital, Daegu, Korea
| | - J S Suh
- Department of Laboratory Medicine, Kyungpook National University Hospital, Daegu, Korea
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12
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Park SR, Kim HJ, Park HK, Kim JY, Kim NS, Byun KS, Moon TK, Byun JW, Moon JH, Choi GS. Classification by causes of dark circles and appropriate evaluation method of dark circles. Skin Res Technol 2015; 22:276-83. [PMID: 26346687 DOI: 10.1111/srt.12258] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/29/2015] [Indexed: 10/23/2022]
Abstract
BACKGROUND Dark circles refer to a symptom that present darkness under the eyes. Because of improvement in the quality of life, the dark circles have been recognized as one of major cosmetic concerns. However, it is not easy to classify the dark circles because they have various causes. METHODS To select suitable instruments and detailed evaluation items, the dark circles were classified according to the causes through visual assessment, Wood's lamp test, and medical history survey for 100 subjects with dark circles. After the classification, were newly recruited for instrument conformity assessment. Through this, suitable instruments for dark circle evaluation were selected. We performed a randomized clinical trial for dark circles, a placebo-controlled double-blind study, using effective parameters of the instruments selected from the preliminary test. RESULTS Dark circles of vascular type (35%) and mixed type (54%), a combination of pigmented and vascular types, were the most common. Twenty four subjects with the mixed type dark circles applied the test product (Vitamin C 3%, Vitamin A 0.1%, Vitamin E 0.5%) and placebo on randomized split-face for 8 weeks. The effective parameters (L*, a, M.I., E.I., quasi L*, quasi a* and dermal thickness) were measured during the study period. Result showed that the L* value of Chromameter(®) , Melanin index (M.I.) of Mexameter(®) and quasi L* value obtained by image analysis improved with statistical significance after applying the test product compared with the placebo product. CONCLUSION We classified the dark circles according to the causes of the dark circles and verified the reliability of the parameter obtained by the instrument conformity assessment used in this study through the efficacy evaluation. Also based on this study, we were to suggest newly established methods which can be applied to the evaluation of efficacy of functional cosmetics for dark circles.
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Affiliation(s)
- S R Park
- Ellead Skin and Bio Research, Gyeonggi-do, Korea
| | - H J Kim
- Ellead Skin and Bio Research, Gyeonggi-do, Korea
| | - H K Park
- Ellead Skin and Bio Research, Gyeonggi-do, Korea
| | - J Y Kim
- Ellead Skin and Bio Research, Gyeonggi-do, Korea
| | - N S Kim
- Ellead Skin and Bio Research, Gyeonggi-do, Korea
| | - K S Byun
- Ellead Skin and Bio Research, Gyeonggi-do, Korea
| | - T K Moon
- Ellead Skin and Bio Research, Gyeonggi-do, Korea
| | - J W Byun
- Department of Dermatology, Inha University College of Medicine, Incheon, Korea
| | - J H Moon
- Department of Dermatology, Inha University College of Medicine, Incheon, Korea
| | - G S Choi
- Department of Dermatology, Inha University College of Medicine, Incheon, Korea
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Kim YA, Kim KM, Lim S, Choi SH, Moon JH, Kim JH, Kim SW, Jang HC, Shin CS. Favorable effect of dietary vitamin C on bone mineral density in postmenopausal women (KNHANES IV, 2009): discrepancies regarding skeletal sites, age, and vitamin D status. Osteoporos Int 2015; 26:2329-37. [PMID: 25906241 DOI: 10.1007/s00198-015-3138-6] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/27/2014] [Accepted: 04/07/2015] [Indexed: 01/30/2023]
Abstract
UNLABELLED Dietary vitamin C intake showed significant positive associations with BMD in postmenopausal women, especially with vitamin D deficiency. INTRODUCTION Although there is a positive role of vitamin C in osteoblastogenesis, debate remains about the contribution of vitamin C to bone mineral density (BMD) in humans. METHODS Data were derived from the Fourth Korean National Health and Nutrition Examination Survey. Dietary information was assessed using a 24-h dietary recall questionnaire. BMD was measured by dual-energy X-ray absorptiometry at the lumbar and hip. RESULTS A total of 1,196 postmenopausal women aged 50 years and older were stratified into tertiles by daily dietary vitamin C intake. After adjusting for traditional confounders, dietary vitamin C intake tertile was significantly positively associated with BMD at all sites (R = 0.513 for lumbar spine (LS) and R = 0.657 for femoral neck (FN), P < 0.05 for each). The subjects with osteoporosis had significantly lower dietary vitamin C intake than did subjects without osteoporosis (74.4 ± 66.2 vs 94.1 ± 78.6 mg/day for LS and 65.5 ± 56.6 vs 94.3 ± 79.2 mg/day for FN, respectively, P < 0.001). The multiple-adjusted odds ratio for osteoporosis for dietary vitamin C <100 mg/day was 1.790 (95 % CI 1.333-2.405, P < 0.001). However, the significant association between vitamin C intake and BMD was only observed in subjects with vitamin D deficiency and aged 50-59 years or >70 years. CONCLUSION Dietary vitamin C intake was positively associated with BMD in postmenopausal women, and inadequate vitamin C intake could increase the risk of osteoporosis.
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Affiliation(s)
- Y A Kim
- Department of Internal Medicine, Seoul National University Hospital, Seoul, South Korea
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Moon JH, Lim S, Han JW, Kim KM, Choi SH, Kim KW, Jang HC. Serum 25-hydroxyvitamin D level and the risk of mild cognitive impairment and dementia: the Korean Longitudinal Study on Health and Aging (KLoSHA). Clin Endocrinol (Oxf) 2015; 83:36-42. [PMID: 25641087 DOI: 10.1111/cen.12733] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/25/2014] [Revised: 01/09/2015] [Accepted: 01/28/2015] [Indexed: 12/11/2022]
Abstract
OBJECTIVE The association of low vitamin D status with mild cognitive impairment (MCI), a preclinical condition that can lead to dementia, has not yet been fully explored. Our aim was to investigate the association between vitamin D status and the future risk of MCI and dementia in older adults. DESIGN, SETTING AND PARTICIPANTS We conducted a population-based prospective study as a part of the Korean Longitudinal Study on Health and Aging. Four hundred and twelve elderly participants who completed evaluations of cognitive function and metabolic parameters in 2005-2006 and 2010-2011 were analysed. MAJOR OUTCOME MEASURE The rate of development of MCI or dementia during the study period was compared according to baseline vitamin D status. Binary logistic regression analysis was performed to investigate any independent association between vitamin D status and the risks of MCI or dementia. RESULTS Among 405 subjects that remained after excluding seven demented subjects at baseline, 338 subjects remained unchanged or improved in their diagnosis for cognitive function during the study period, whereas 67 subjects showed progression to MCI or dementia. When analyzing 236 subjects whose baseline mini-mental state examination (MMSE) scores were <27, severe vitamin D deficiency at baseline, defined as <25 nmol/l, was independently associated with the progression of cognitive impairment. Among 297 subjects who were normal at baseline, 50 acquired MCI and 247 remained normal. Severe vitamin D deficiency was also independently associated with the development of MCI when analyzing 145 subjects whose baseline MMSE scores were <27. CONCLUSION Severe vitamin D deficiency was independently associated with the future risk of MCI as well as dementia, especially in older adults whose baseline MMSE scores had decreased only modestly.
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Affiliation(s)
- J H Moon
- Department of Internal Medicine, Seoul National University Bundang Hospital and Seoul National University College of Medicine, Seongnam-si, Gyeonggi-do, Korea
| | - S Lim
- Department of Internal Medicine, Seoul National University Bundang Hospital and Seoul National University College of Medicine, Seongnam-si, Gyeonggi-do, Korea
| | - J W Han
- Department of Neuropsychiatry, Seoul National University Bundang Hospital and Seoul National University College of Medicine, Seongnam-si, Gyeonggi-do, Korea
| | - K M Kim
- Department of Internal Medicine, Seoul National University Bundang Hospital and Seoul National University College of Medicine, Seongnam-si, Gyeonggi-do, Korea
| | - S H Choi
- Department of Internal Medicine, Seoul National University Bundang Hospital and Seoul National University College of Medicine, Seongnam-si, Gyeonggi-do, Korea
| | - K W Kim
- Department of Neuropsychiatry, Seoul National University Bundang Hospital and Seoul National University College of Medicine, Seongnam-si, Gyeonggi-do, Korea
- Department of Brain and Cognitive Science, Seoul National University College of Natural Sciences, Seoul, Korea
| | - H C Jang
- Department of Internal Medicine, Seoul National University Bundang Hospital and Seoul National University College of Medicine, Seongnam-si, Gyeonggi-do, Korea
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Moon JH, Lee JH, Lee JY. Subgingival microbiome in smokers and non-smokers in Korean chronic periodontitis patients. Mol Oral Microbiol 2014; 30:227-41. [PMID: 25283067 DOI: 10.1111/omi.12086] [Citation(s) in RCA: 77] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/28/2014] [Indexed: 11/28/2022]
Abstract
Smoking is a major environmental factor associated with periodontal diseases. However, we still have a very limited understanding of the relationship between smoking and subgingival microflora in the global population. Here, we investigated the composition of subgingival bacterial communities from the pooled plaque samples of smokers and non-smokers, 134 samples in each group, in Korean patients with moderate chronic periodontitis using 16S rRNA gene-based pyrosequencing. A total of 17,927 reads were analyzed and classified into 12 phyla, 126 genera, and 394 species. Differences in bacterial communities between smokers and non-smokers were examined at all phylogenetic levels. The genera Fusobacterium, Fretibacterium, Streptococcus, Veillonella, Corynebacterium, TM7, and Filifactor were abundant in smokers. On the other hand, Prevotella, Campylobacter, Aggregatibacter, Veillonellaceae GQ422718, Haemophilus, and Prevotellaceae were less abundant in smokers. Among species-level taxa occupying > 1% of whole subgingival microbiome of smokers, higher abundance (≥ 2.0-fold compared to non-smokers) of seven species or operational taxonomic units (OTUs) was found: Fusobacterium nucleatum, Neisseria sicca, Neisseria oralis, Corynebacterium matruchotii, Veillonella dispar, Filifactor alocis, and Fretibacterium AY349371. On the other hand, lower abundance of 11 species or OTUs was found in smokers: Neisseria elongata, six Prevotella species or OTUs, Fusobacterium canifelinum, Aggregatibacter AM420165, Selenomonas OTU, and Veillonellaceae GU470897. Species richness and evenness were similar between the groups whereas diversity was greater in smokers than non-smokers. Collectively, the results of the present study indicate that differences exist in the subgingival bacterial community between smoker and non-smoker patients with chronic moderate periodontitis in Korea, suggesting that cigarette smoking considerably affects subgingival bacterial ecology.
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Affiliation(s)
- J-H Moon
- Department of Maxillofacial Biomedical Engineering, School of Dentistry, Institute of Oral Biology, Kyung Hee University, Seoul, Korea; Department of Life and Nanopharmaceutical Sciences, Kyung Hee University, Seoul, Korea
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Kwon D, Saadeldin IM, Kim SJ, Park SJ, Kang JT, Park HJ, Moon JH, Koo OJ, Jang G, Lee BC. Optimizing electrical activation of porcine oocytes by adjusting pre- and post-activation mannitol exposure times. Reprod Domest Anim 2014; 49:995-9. [PMID: 25256295 DOI: 10.1111/rda.12420] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2014] [Accepted: 08/10/2014] [Indexed: 11/29/2022]
Abstract
Modifying electrical activation conditions have been used to improve in vitro embryo production and development in pigs. However, there is insufficient information about correlations of porcine embryo development with oocyte pre- and post-activation conditions. The purpose of this study was to compare the developmental rates of porcine oocytes subjected to different mannitol exposure times, either pre- or post-electrical activation, and to elucidate the reason for the optimal mannitol exposure time. Mannitol exposure times around activation were adjusted as 0, 1, 2 or 3 min. Blastocyst development were checked on day 7. Exposure of oocytes to mannitol for 1 or 2 min before electrical activation produced significantly higher blastocyst rates than exposure for 0 or 3 min. There was no significant difference in blastocyst rates when activated oocytes were exposed to mannitol for 0, 1, 2 or 3 min after electrical activation. While exposure of oocytes to mannitol for 1 min pre- and 3 min post-activation showed significantly higher blastocyst development than 0 min pre- and 0 min post-activation. It also showed higher maintenance of normal oocyte morphology than exposure for 0 min pre- and 0 min post-activation. In conclusion, exposure of oocytes to mannitol for 1 min pre- and 3 min post-activation seems to be optimal for producing higher in vitro blastocyst development of porcine parthenogenetic embryos. The higher blastocyst development is correlated with higher maintenance of normal morphology in oocytes exposed to mannitol for 1 min pre- and 3 min post-activation.
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Affiliation(s)
- D Kwon
- Department of Theriogenology and Biotechnology, College of Veterinary Medicine and Research Institute for Veterinary Science, Seoul National University, Seoul, Korea
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Koo BS, Lee SH, Kim JM, Huang S, Kim SH, Rho YS, Bae WJ, Kang HJ, Kim YS, Moon JH, Lim YC. Oct4 is a critical regulator of stemness in head and neck squamous carcinoma cells. Oncogene 2014; 34:2317-24. [PMID: 24954502 DOI: 10.1038/onc.2014.174] [Citation(s) in RCA: 96] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2013] [Revised: 04/01/2014] [Accepted: 05/06/2014] [Indexed: 01/02/2023]
Abstract
Cancer stem cells (CSCs) have been suggested as responsible for the initiation and progression of cancers. Octamer-binding transcription factor 4 (Oct4) is an important regulator of embryonic stem cell fate. Here, we investigated whether Oct4 regulates stemness of head and neck squamous carcinoma (HNSC) CSCs. Our study showed that ectopic expression of Oct4 promotes tumor growth through cyclin E activation, increases chemoresistance through ABCC6 expression and enhances tumor invasion through slug expression. Also, Oct4 dedifferentiates differentiated HNSC cells to CSC-like cells. Furthermore, Oct4(high) HNSC CSCs have more stem cell-like traits compared with Oct4(low) cells, such as self-renewal, stem cell markers' expression, chemoresistance, invasion capacity and xenograft tumorigeneity in vitro and in vivo. In addition, knockdown of Oct4 led to markedly lower HNSC CSC stemness. Finally, there was a significant correlation between Oct4 expression and survival of 119 HNSC patients. Collectively, these data suggest that Oct4 may be a critical regulator of HNSC CSCs and its targeting may be potentially valuable in the treatment of HNSC CSCs.
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Affiliation(s)
- B S Koo
- Department of Otolaryngology-Head and Neck Surgery, Cancer Research Institute, Daejeon, Korea
| | - S H Lee
- Department of Otorhinolaryngology-Head and Neck Surgery, Sungkyunkwan University School of Medicine, Kangbuk Samsung Hospital, Seoul, Korea
| | - J M Kim
- Research Institute for Medical Sciences and Pathology, Chungnam National University College of Medicine, Daejeon, Korea
| | - S Huang
- Research Institute for Medical Sciences and Pathology, Chungnam National University College of Medicine, Daejeon, Korea
| | - S H Kim
- Department of Otolaryngology-Head and Neck Surgery, Cancer Research Institute, Daejeon, Korea
| | - Y S Rho
- Department of Otorhinolaryngology-Head and Neck Surgery, Ewha University School of Medicine, Seoul, Korea
| | - W J Bae
- Department of Otolaryngology-Head and Neck Surgery, Hallym University College of Medicine, Seoul, Korea
| | - H J Kang
- Department of Otorhinolaryngology-Head and Neck Surgery, Research Institute of Medical Science, Konkuk University School of Medicine, Seoul, Korea
| | - Y S Kim
- Department of Otorhinolaryngology-Head and Neck Surgery, Research Institute of Medical Science, Konkuk University School of Medicine, Seoul, Korea
| | - J H Moon
- Department of Otorhinolaryngology-Head and Neck Surgery, Research Institute of Medical Science, Konkuk University School of Medicine, Seoul, Korea
| | - Y C Lim
- Department of Otorhinolaryngology-Head and Neck Surgery, Research Institute of Medical Science, Konkuk University School of Medicine, Seoul, Korea
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Lee TH, Lee SJ, Moon JH, Park SH. Technical tips and issues of biliary stenting, focusing on malignant hilar obstruction. MINERVA GASTROENTERO 2014; 60:135-149. [PMID: 24780948] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
In patients with inoperable hilar cholangiocarcinoma (HCCA), palliative endoscopic or percutaneous drainage provides benefits in terms of symptomatic improvement and quality of life. Endoscopic biliary stent placement is considered the gold standard, with metal stents preferred over plastic stents in patients with more than three months of life expectancy. However, the endoscopic management of advanced hilar obstruction is often more challenging and complex than distal malignant biliary obstructions. Recently, the Asia-Pacific working group on hepatobiliary cancers produced consensus recommendations on the use of endoscopic vs. percutaneous drainage and unilateral vs. bilateral drainage in the management of HCCA. However, these guidelines must be weighed against context-specific information, such as the volume of liver drainage required, life expectancy of the patient, and the available expertise. In this literature review, we describe the issues commonly encountered during endoscopic biliary stenting for malignant hilar obstruction and provide technical guidance to improve success rates and patient outcomes.
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Affiliation(s)
- T H Lee
- Division of Gastroenterology Department of Internal Medicine Soonchunhyang University School of Medicine Cheonan Hospital, Cheonan and Bucheon Hospital, Bucheon, Republic of Korea -
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Park YG, Moon JH, Park SY. Lactoferrin from bovine colostrum regulates prolyl hydroxylase 2 activity and prevents prion protein-mediated neuronal cell damage via cellular prion protein. Neuroscience 2014; 274:187-97. [PMID: 24875174 DOI: 10.1016/j.neuroscience.2014.05.030] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2014] [Revised: 04/30/2014] [Accepted: 05/18/2014] [Indexed: 11/24/2022]
Abstract
Prion disorders are associated with the conversion of normal cellular prion protein (PrPc) to the abnormal scrapie isoform of prion protein (PrPsc). Recent studies have shown that expression of normal PrPc is regulated by hypoxia-inducible factor-1 alpha (HIF-1α), and that lactoferrin increases full-length PrPc on the cell surface. Lactoferrin is an 80-kDa iron-binding glycoprotein with various biological activities, including iron-chelating ability. HIF-1α and the associated ubiquitin-proteasome pathway are regulated by HIF prolyl-hydroxylases 2 (PHD2). We hypothesized that lactoferrin regulates PHD2 expression and enzymatic activity, and the PHD2 regulation promotes HIF-1α stability and prevention of neuronal cell death mediated by prion protein (PrP) residues (106-126). Lactoferrin prevented PrP (106-126)-induced neurotoxicity by the induction of PrPc expression via promoting HIF-1α stability in neuronal cells. Our results demonstrated that lactoferrin prevented PrP (106-126)-induced neurotoxicity via the up-regulation of HIF-1α stability determined by PHD2 expression and enzymatic activity. These findings suggest that possible therapies such as PHD2 inhibition, or promotion of lactoferrin secretion, may have clinical benefits in neurodegenerative diseases, including prion disease.
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Affiliation(s)
- Y-G Park
- Biosafty Research Institute, College of Veterinary Medicine, Chonbuk National University, Jeonju, Jeonbuk 561-756, South Korea
| | - J-H Moon
- Biosafty Research Institute, College of Veterinary Medicine, Chonbuk National University, Jeonju, Jeonbuk 561-756, South Korea
| | - S-Y Park
- Biosafty Research Institute, College of Veterinary Medicine, Chonbuk National University, Jeonju, Jeonbuk 561-756, South Korea.
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An HJ, Choi EK, Kim JS, Hong SW, Moon JH, Shin JS, Ha SH, Kim KP, Hong YS, Lee JL, Choi EK, Lee JS, Jin DH, Kim TW. INCB018424 induces apoptotic cell death through the suppression of pJAK1 in human colon cancer cells. Neoplasma 2014; 61:56-62. [PMID: 24195509] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Janus kinase (JAK) is one of the main upstream activators of signal transducers and activators of transcription (STAT) that are constitutively activated in various malignancies and are associated with cell growth, survival, and carcinogenesis. Here, we investigated the role of JAKs in colorectal cancer in order to develop effective therapeutic targets for INCB018424, which is the first JAK1/2 inhibitor to be approved by FDA. After examining the basal expression levels of phospho-JAK1 and phospho-JAK2, we measured the effects of INCB018424 on the phosphorylation of JAK1/2 using western blot analysis. Cell viability was determined using the trypan blue exclusion assay. The cell death mechanism was identified by the activation of caspase 3 using western blot and annexin V staining. The basal levels of phospho-JAK1 and phospho-JAK2 were cancer cell type dependent. Colorectal cancer cell lines that phosphorylate both JAK1 and JAK2 include DLD-1 and RKO. INCB018424 inactivates both JAK1 and JAK2 in DLD-1 cells but inactivates only JAK1 in RKO cells. Cell death was proportional to the inactivation of JAK1 but not JAK2. INCB018424 causes caspase-dependent cell death, which is prevented by treatment with z-VAD. The inhibition of JAK1 phosphorylation seemed sufficient to allow INCB018424-mediated apoptosis. JAK1 is a key molecule that is involved in colon cancer cell survival and the inhibition of JAK1 by INCB01424 results in caspase-dependent apoptosis in colorectal cancer cells. The use of selective JAK1 inhibitors could be an attractive therapy against colorectal cancer, but further clinical investigations are needed to test this possibility.
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Hong SW, Moon JH, Kim JS, Shin JS, Jung KA, Lee WK, Jeong SY, Hwang JJ, Lee SJ, Suh YA, Kim I, Nam KY, Han S, Kim JE, Kim KP, Hong YS, Lee JL, Lee WJ, Choi EK, Lee JS, Jin DH, Kim TW. p34 is a novel regulator of the oncogenic behavior of NEDD4-1 and PTEN. Cell Death Differ 2013; 21:146-60. [PMID: 24141722 DOI: 10.1038/cdd.2013.141] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2013] [Revised: 07/04/2013] [Accepted: 07/31/2013] [Indexed: 11/09/2022] Open
Abstract
PTEN is one of the most frequently mutated or deleted tumor suppressors in human cancers. NEDD4-1 was recently identified as the E3 ubiquitin ligase for PTEN; however, a number of important questions remain regarding the role of ubiquitination in regulating PTEN function and the mechanisms by which PTEN ubiquitination is regulated. In the present study, we demonstrated that p34, which was identified as a binding partner of NEDD4-1, controls PTEN ubiquitination by regulating NEDD4-1 protein stability. p34 interacts with the WW1 domain of NEDD4-1, an interaction that enhances NEDD4-1 stability. Expression of p34 promotes PTEN poly-ubiquitination, leading to PTEN protein degradation, whereas p34 knockdown results in PTEN mono-ubiquitination. Notably, an inverse correlation between PTEN and p34/NEDD4-1 levels was confirmed in tumor samples from colon cancer patients. Thus, p34 acts as a key regulator of the oncogenic behavior of NEDD4-1 and PTEN.
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Affiliation(s)
- S-W Hong
- 1] Innovative Cancer Research, Asan Medical Center, Asan Institute for Life Science, University of Ulsan College of Medicine, Seoul, Republic of Korea [2] Department of Oncology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
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Lee TH, Moon JH, Kim JH, Park DH, Lee SS, Choi HJ, Cho YD, Park SH, Kim SJ. Primary and revision efficacy of cross-wired metallic stents for endoscopic bilateral stent-in-stent placement in malignant hilar biliary strictures. Endoscopy 2013; 45:106-13. [PMID: 23212727 DOI: 10.1055/s-0032-1325928] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
BACKGROUND AND STUDY AIMS Endoscopic bilateral drainage for inoperable malignant hilar biliary strictures (HBS) using metal stents is considered to be technically difficult. Furthermore, endoscopic revision of bilateral stenting after occlusion can be challenging. This study was performed to evaluate the long-term efficacy of endoscopic bilateral stent-in-stent placement of cross-wired metallic stents in high-grade malignant HBS and planned endoscopic bilateral revision. PATIENTS AND METHODS A total of 84 patients with inoperable high-grade malignant HBS were enrolled from three academic tertiary referral centers. Two cross-wired metal stents were inserted using a bilateral stent-in-stent placement method. Bilateral endoscopic revision was also performed during follow-up using either identical metal stents or plastic stents. The main outcome measurements were technical and functional success, complications, stent patency, and endoscopic revision efficacy. RESULTS The technical and clinical success rates of endoscopic bilateral stent-in-stent placement of cross-wired metallic stents were 95.2% (80/84) and 92.9% (78/84), respectively. Median patency (range) and survival were 238 days (10-429) and 256 days (10-1130), respectively. Obstruction of primary bilateral stents occurred in 30.8% (24/78) of patients with functionally successful stent placement. The technical and clinical success rates of planned bilateral endoscopic revision for occluded stents were 83.3% (20/24) and 79.2% (19/24), respectively. For revision, bilateral metallic stents were placed in 11 patients (55.0%); the remaining patients received plastic stents. CONCLUSIONS Palliative endoscopic bilateral stent-in-stent placement of cross-wired metallic stents was effective in patients with inoperable HBS. Revision endoscopic bilateral stenting may be feasible and successful in cases where the primary deployed metal stents are occluded.
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Affiliation(s)
- T H Lee
- Digestive Disease Center, Department of Internal Medicine, Soon Chun Hyang University School of Medicine, Cheonan, Republic of Korea
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Lee YN, Moon JH, Choi HJ. Reply to Peng & Chow. Endoscopy 2013; 45:155. [PMID: 23364845 DOI: 10.1055/s-0032-1326180] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/10/2022]
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Shin JY, Chung YS, Kang B, Jiang HL, Yu DY, Han K, Chae C, Moon JH, Jang G, Cho MH. Co-delivery of LETM1 and CTMP synergistically inhibits tumor growth in H-ras12V liver cancer model mice. Cancer Gene Ther 2013; 20:186-94. [PMID: 23392203 DOI: 10.1038/cgt.2013.6] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
As hepatocellular carcinoma (HCC) is one of the most common tumors worldwide, development of novel therapeutic approaches for HCC is urgently needed. Two different genes, LETM1 and CTMP, which target mitochondrial functions, were chosen and linked using 2A-peptide sequence. Successful self-cleavage of 2A-peptide induced synergistic antitumor effect in the liver of H-ras12V, the HCC model mice, by simultaneous activation of LETM1 (Leucine zipper/EF hand-containing transmembrane-1) and CTMP (carboxyl-terminal modulator protein). Overexpression of LETM1 and CTMP significantly reduced the incidence of tumorigenesis, which were confirmed by gross and microscopic observations. Morphological changes in mitochondria, such as swelling and loss of cristae, were significant, and the prolonged activation of defects in mitochondrial function led to mitochondria-mediated apoptosis. Furthermore, with CTMP as a direct binding partner of Akt1, and LETM1 as a binding partner of CTMP, LETM1-2A-CTMP downregulated the Akt1 pathway at both Ser473 and Thr308 sites of phosphorylation. Proliferation and angiogenesis, which are important in cancer prognosis, were reduced in tumor sites after introduction of LETM1-2A-CTMP. Taken together, the results indicate that introduction of the mitochondria-targeting genes, LETM1 and CTMP, and self-processing capacity of 2A-peptide sequence exerts an antitumor effect in liver of H-ras12V mice, suggesting its potential as a tool for gene therapy.
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Affiliation(s)
- J-Y Shin
- Laboratory of Toxicology, College of Veterinary Medicine, Seoul National University, Seoul, Korea
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Cho JS, Moon YM, Park IH, Um JY, Moon JH, Park SJ, Lee SH, Kang HJ, Lee HM. Epigenetic regulation of myofibroblast differentiation and extracellular matrix production in nasal polyp-derived fibroblasts. Clin Exp Allergy 2013; 42:872-82. [PMID: 22239687 DOI: 10.1111/j.1365-2222.2011.03931.x] [Citation(s) in RCA: 61] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
BACKGROUND Nasal polyposis is a multi-factorial disease associated with chronic inflammatory condition of the paranasal sinuses. Myofibroblast differentiation and extracellular matrix (ECM) accumulation are involved in the pathogenesis of nasal polyposis. OBJECTIVE The aim of this study was to study the effect of trichostatin A (TSA), a histone deacetylase (HDAC) inhibitor, on transforming growth factor (TGF)-β1-induced myofibroblast differentiation and ECM accumulation in nasal polyp-derived fibroblasts (NPDFs). METHODS Nasal polyp-derived fibroblasts were isolated from nasal polyps of patients who have chronic rhinosinusitis with nasal polyp. TSA was treated in TGF-β1-induced NPDFs. Expression levels of HDAC2, α-smooth muscle actin (SMA), TGF-β1, collagen type I, acetylated Histone H3, acetylated Histone H4, phosphorylated Smad2/3 and Smad7 were determined by RT-PCR, western blot and/or immunofluorescent staining. The total collagen amount production was analysed by Sircol soluble collagen assay and contractile activity was measured by collagen gel contraction assay. HDAC2 inhibition by TSA or HDAC2 silencing was established by RT-PCR and western blot. The epigenetic effect on α-SMA gene inactivation was examined by chromatin immunoprecipitation assay. Proliferation was determined by Ki67-positive cell staining and cytotoxicity was assessed by 3-(4,5- dimethylthiazol-2yl)-2,5-diphenyl-2H-tetrazolium bromide (MTT) assay. RESULTS The expression levels of HDAC2, α-SMA and TGF-β1 were increased in nasal polyp tissues compared to normal inferior turbinate tissues. TSA and HDAC2 silencing inhibited expression levels α-SMA, collagen and HDAC2. TSA induced hyperacetylation of histone and suppressed opening of α-SMA gene promoter in TGF-β1-induced NPDFs. TSA inhibited TGF-β1-induced Smad 2/3 and rescued TGF-β1-suppressed Smad7 signalling pathway. Finally, TSA blocked proliferation in TGF-β1-induced NPDFs and has no cytotoxic effect in NPDFs. CONCLUSIONS AND CLINICAL RELEVANCE These results suggest that HDAC inhibition is associated with myofibroblast differentiation and extracelluar matrix accumulation in nasal polyposis. TSA may be useful as an inhibitor of nasal polyp growth, and thus has potential to be used as a novel treatment option for nasal polyposis.
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Affiliation(s)
- J-S Cho
- Brain Korea 21 Project for Biomedical Science, College of Medicine, Korea University, Seoul, Korea
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Nakajima K, Moon JH, Tsutsui S, Miyazaki Y, Yamasaki M, Yamada T, Kato M, Yasuda K, Sumiyama K, Yahagi N, Saida Y, Kondo H, Nishida T, Mori M, Doki Y. Esophageal submucosal dissection under steady pressure automatically controlled endoscopy (SPACE): a randomized preclinical trial. Endoscopy 2012; 44:1139-48. [PMID: 22932809 DOI: 10.1055/s-0032-1310093] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
BACKGROUND AND STUDY AIMS A new overtube system has been developed for steady pressure automatically controlled endoscopy (SPACE) in the gastrointestinal tract. The objectives of this study were to validate the feasibility and safety of SPACE in the esophagus, and to evaluate its potential advantages over conventional (manually insufflating) endoscopy in endoscopic submucosal dissection (ESD). METHODS This was a multicenter preclinical trial using acute porcine models (n = 20). In Experiment 1 (feasibility/safety study), SPACE was attempted in the esophagus with continuous monitoring of cardiopulmonary parameters and intraluminal pressures in the downstream bowel. Different insufflation pressures were tested to optimize the insufflation condition. Each session was video-recorded and scored by blinded reviewers. In Experiment 2 (randomized trial), esophageal ESD was attempted using either SPACE or conventional endoscopy, and results were compared. RESULTS In Experiment 1, SPACE was performed safely without intraluminal pressure elevation in the downstream bowel. According to video review, SPACE provided more stable, reproducible, and rapid visualization than conventional endoscopy. The insufflation pressure was optimized at 14 mmHg for esophageal SPACE. In Experiment 2, ESD was completed in all animals. The ESD time was significantly shorter with SPACE compared with conventional endoscopy (1326 vs. 1616 seconds; P = 0.009). Responses to questionnaires showed that 94 % - 100 % of participants considered SPACE to provide improved exposure and more uniform tissue tension than conventional endoscopy. Other data were comparable. CONCLUSIONS SPACE is feasible, safe, and potentially effective for complicated endoscopic procedures, such as ESD. SPACE improves and standardizes endoscopic exposure and tissue tension. A clinical study is required to further confirm its safety and clinical effectiveness.
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Affiliation(s)
- K Nakajima
- Department of Gastroenterological Surgery, Osaka University, Osaka, Japan.
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Lee YN, Moon JH, Choi HJ, Min SK, Kim HI, Lee TH, Cho YD, Park SH, Kim SJ. Direct peroral cholangioscopy using an ultraslim upper endoscope for management of residual stones after mechanical lithotripsy for retained common bile duct stones. Endoscopy 2012; 44:819-24. [PMID: 22791587 DOI: 10.1055/s-0032-1309880] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
BACKGROUND AND STUDY AIMS The incidence of residual stones after mechanical lithotripsy for retained common bile duct (CBD) stones is relatively high. Peroral cholangioscopy using a mother-baby system may be useful for confirming complete extraction of stones, but has several limitations regarding routine use. We evaluated the role of direct peroral cholangioscopy (DPOC) using an ultraslim upper endoscope for the evaluation and removal of residual CBD stones after mechanical lithotripsy. PATIENTS AND METHODS From August 2006 to November 2010, 48 patients who had undergone mechanical lithotripsy for retained CBD stones with no evidence of filling defects in balloon cholangiography were recruited. The bile duct was inspected by DPOC after balloon cholangiography. Detected residual CBD stones were directly retrieved with a basket or balloon catheter under DPOC. The incidence of residual stones detected by DPOC, and the success rate of residual stone retrieval under DPOC were investigated. RESULTS DPOC was successfully performed in 46 of the 48 patients (95.8%). Of these, 13 patients (28.3%) had residual CBD stones (mean number 1.4, range 1-3; mean diameter 4.5 mm, range 2.3-9.6). The residual stones were removed directly under DPOC in 11 of these patients (84.6%). There were no complications associated with DPOC or stone removal. CONCLUSION DPOC using an ultraslim upper endoscope is a useful endoscopic procedure for the evaluation and extraction of residual stones after mechanical lithotripsy for retained CBD stones.
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Affiliation(s)
- Y N Lee
- Digestive Disease Center, Department of Internal Medicine, Soon Chun Hyang University School of Medicine, Bucheon and Seoul, Korea
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Cheon YK, Moon JH, Choi HJ, Lee JE, Lee YN, Cho YD, Lee TH, Park SH, Kim SJ. Direct peroral pancreatoscopy with an ultraslim endoscope for the evaluation of intraductal papillary mucinous neoplasms. Endoscopy 2012; 43 Suppl 2 UCTN:E390-1. [PMID: 22275014 DOI: 10.1055/s-0030-1256933] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Y K Cheon
- Digestive Disease Center, Department of Internal Medicine, Soon Chun Hyang University School of Medicine, Bucheon and Seoul, Korea
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Lim JM, Jeong JH, Lee JH, Moon JH, Chung YS, Kim KH. The analysis of PM2.5 and associated elements and their indoor/outdoor pollution status in an urban area. Indoor Air 2011; 21:145-55. [PMID: 21118306 DOI: 10.1111/j.1600-0668.2010.00691.x] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
Abstract
UNLABELLED In this study, elemental composition of PM2.5 and the status of indoor/outdoor pollution were investigated in a commercial building near a roadside area in Daejeon, Korea. A total of 60 parallel PM2.5 samples were collected both on the roof (outdoor) and in an indoor office of a building near a highly congested road during the spring and fall of 2008. The concentrations of 23 elements were analysed from these PM2.5 samples using instrumental neutron activation analysis. PM2.5 levels in indoor environment (47.6 ± 16.5 μg/m(3)) were noticeably higher than the outdoor levels (37.7 ± 17.2 μg/m(3)) with the I/O concentration ratio of 1.37 ± 0.33 [correlation coefficient (r) = 0.89, P < 0.001]. Principal component analysis results coincidently showed the predominance of sources such as soil dust, traffic, oil/coal combustion and road dust for both indoor and outdoor microenvironments. An isolated source in the indoor environment was assigned to environmental tobacco smoke (ETS) with high factor loading of Ce, Cl, I, K, La and Zn. The overall results of our study indicate that the sources of indoor constituents were strongly dependent on outdoor processes except for the ones affected by independent sources such as ETS. PRACTICAL IMPLICATIONS An improved understanding of the factors affecting the indoor PM2.5 concentration levels can lead to the development of an efficient management strategy to control health risks from exposure to indoor PM2.5 and related toxic components. A comparison of our comprehensive data sets indicated that most indoor PM2.5 and associated elemental species were strongly enriched by indoor source activities along with infiltration of ambient outdoor air for a naturally ventilated building.
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Affiliation(s)
- J-M Lim
- Department of Nuclear Basic Science, Korea Atomic Energy Research Institute, Daejeon, Korea
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Kim MK, Suh C, Lee DH, Min CK, Kim SJ, Kim K, Moon JH, Yoon SS, Lee GW, Kang HJ, Kim SH, Choi CW, Eom HS, Kwak JY, Kim HJ, Mun YC, Bang SM, Lee K, Shin HJ, Lee JH. Immunoglobulin D multiple myeloma: response to therapy, survival, and prognostic factors in 75 patients. Ann Oncol 2010; 22:411-6. [PMID: 20682550 DOI: 10.1093/annonc/mdq393] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
BACKGROUND To analyze the clinical features, outcomes including efficacy of treatment, and prognostic factors of patients with immunoglobulin D multiple myeloma (IgD MM). DESIGN AND METHODS Seventy-five patients diagnosed with IgD MM were selected from the Korean Myeloma Registry database (www.myeloma.or.kr). RESULTS Median age was 57 years and the main presenting features were bone pain (77%). Renal function impairment and hypercalcemia were present in 40 (53%) and 20 (27%) patients. Sixty-seven patients (89%) had lambda light chains. Forty-eight patients (64%) were of stage III by International Staging System. Twenty-six patients (53%) had chromosomal abnormalities mostly by conventional cytogenetics. Thirty-nine patients (54%) were treated with vincristine, adriamycin, and dexamethasone chemotherapy; the overall response rate (ORR) of 56%. Sixteen patients (22%) received first-line chemotherapy including new drugs (bortezomib or thalidomide), with an ORR of 81%. At a median follow-up time of 28.6 months, median overall survival (OS) was 18.5 months. Age, extramedullary plasmacytoma, del(13) or hypoploidy, serum β(2) microglobulin level, and platelet count were significant prognostic factors for OS. CONCLUSIONS IgD MM is an aggressive disease that is usually detected at an advanced stage. Despite a positive initial response, survival after relapse was dismal. Intensive treatment strategies before and following stem cell transplantation may improve outcomes in younger patients.
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Affiliation(s)
- M K Kim
- Department of Internal Medicine, Yeungnam University Medical Center, Yeungnam University College of Medicine, Daegu
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Moon JH, Kim SN, Kang BW, Chae YS, Kim JG, Ahn JS, Kim YK, Yang DH, Lee JJ, Kim HJ, Choi YJ, Shin HJ, Chung JS, Cho GJ, Sohn SK. Early onset of acute GVHD indicates worse outcome in terms of severity of chronic GVHD compared with late onset. Bone Marrow Transplant 2010; 45:1540-5. [PMID: 20190848 DOI: 10.1038/bmt.2010.12] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Acute GVHD (aGVHD) is an important risk factor for predicting the incidence or severity of chronic GVHD (cGVHD). Transplant outcome can be influenced by the onset time of aGVHD in patients who have received allogeneic PBSC transplants (PBSCTs). The medical records of 134 patients who survived more than 3 months after myeloablative allogeneic PBSCT were retrospectively reviewed. In all, 38 patients (28.4%) developed grade II-IV aGVHD before day +28 (early aGVHD) and 25 patients (18.7%) after day +28 (late aGVHD). The 5-year cumulative incidence of cGVHD was 78.9% in the early-aGVHD group and 56.6% in the late-aGVHD group (P=0.034). The 5-year OS was 51.0% for the early-aGVHD and 80.8% for the late-aGVHD group (P=0.406). Infection was the primary cause of death for the early-aGVHD group (51.4 vs 16.7%, P=0.017), whereas relapse of the primary disease was higher among the patients with late aGVHD, although this was statistically insignificant (58.3 vs 25.7%, P=0.309). In a multivariate analysis, early aGVHD was identified as a risk factor for developing cGVHD (hazard ratio (HR) 2.278, P=0.004). The development of aGVHD early after allogeneic PBSCT increased the risk of cGVHD and infection-related death rate when compared with the late onset of aGVHD.
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Affiliation(s)
- J H Moon
- Department of Hematology/Oncology, Kyungpook National University Hospital, Daegu, Korea
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Lee JE, Moon JH, Choi HJ, Song AR, Jung EK, Cheon YK, Cho YD, Lee JS, Lee MS. Endoscopic treatment of difficult bile duct stones by using a double-lumen basket for laser lithotripsy--a case series. Endoscopy 2010; 42:169-72. [PMID: 19998219 DOI: 10.1055/s-0029-1215353] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Laser lithotripsy is an effective and safe method for difficult common bile duct (CBD) stones. However, radiolucent laser fibers make accurate fragmentation difficult and require continuous visual control or an accessory for effective targeting. The newly developed double-lumen basket may promote effective laser lithotripsy after stone capture. We performed laser lithotripsy using a double-lumen basket in 14 patients with CBD stones refractive to conventional endoscopic treatment, and evaluated the feasibility and efficacy of this procedure. Stones were successfully fragmented in 13 of 14 patients, and 13 patients eventually became stone-free. Mechanical lithotripsy was applied in two patients with biliary strictures. Minor complications were noted in three patients, including transient hemobilia in one patient. For a selected group of patients with difficult CBD stones, laser lithotripsy using a double-lumen basket appears to be an effective and safe method. However, continuous development of basket protocols to increase the success rate of lithotripsy is needed.
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Affiliation(s)
- J E Lee
- Department of Internal Medicine, Digestive Disease Center, Soon Chun Hyang University School of Medicine, Bucheon and Seoul, Korea
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Choi HJ, Moon JH, Ko BM, Kim YJ, Cheon YK, Cho YD, Lee MS, Shim CS. Endoscopic stone removal using a scissors papillotome followed by papillary balloon dilation in patients with Billroth II gastrectomy - a case series. Endoscopy 2009; 41:993-6. [PMID: 19866399 DOI: 10.1055/s-0029-1215126] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- H J Choi
- Digestive Disease Center, Department of Internal Medicine, Soon Chun Hyang University School of Medicine, Bucheon 420-767, Korea
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Kim JG, Chae YS, Sohn SK, Moon JH, Kang BW, Park JY, Jeon SW, Lee MH, Lim KH, Choi GS, Jun SH. IVS10+12A>G polymorphism in hMSH2 gene associated with prognosis for patients with colorectal cancer. Ann Oncol 2009; 21:525-529. [PMID: 19759184 DOI: 10.1093/annonc/mdp338] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND The polymorphisms in DNA repair genes may contribute to a variation in the DNA repair capacity, thereby affecting the risk of carcinogenesis and prognosis of colorectal cancer. Accordingly, the present study analyzed 14 polymorphisms in DNA repair genes and their impact on the prognosis for patients with colorectal cancer. MATERIALS AND METHODS Three hundred and ninety-seven consecutive patients with curatively resected colorectal adenocarcinoma were enrolled in the present study. The genomic DNA was extracted from fresh colorectal tissue and 14 polymorphisms of DNA repair genes determined using a real-time PCR genotyping assay. RESULTS The median age of the patients was 63 years, and 218 (54.9%) patients had colon cancer, while 179 (45.1%) patients had rectal cancer. A multivariate survival analysis, including age, differentiation, carcinoembryonic antigen level, and stage, revealed a better survival for the patients with the combined IVS10+12AG and GG genotype than for the patients with the IVS10+12AA genotype [disease-free survival: hazard ratio (HR) 0.47, 95% confidence interval (CI) 0.30-0.75, P = 0.002; overall survival: HR 0.50, 95% CI 0.26-0.98, P = 0.042]. None of the other polymorphisms was associated with survival. CONCLUSION The IVS10+12A>G polymorphism in the hMSH2 gene was found to be an independent prognostic marker for patients with colorectal cancer.
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Affiliation(s)
- J G Kim
- Department of Oncology/Hematology
| | - Y S Chae
- Department of Oncology/Hematology
| | - S K Sohn
- Department of Oncology/Hematology
| | - J H Moon
- Department of Oncology/Hematology
| | - B W Kang
- Department of Oncology/Hematology
| | - J Y Park
- Department of Internal Medicine and Biochemistry
| | | | - M-H Lee
- Department of Technology Center for Diagnosis and Prediction, Kyungpook National University Hospital, Kyungpook National University School of Medicine; D&P Biotech, Ltd
| | - K-H Lim
- Department of Surgery, Kyungpook National University Hospital, Kyungpook National University School of Medicine, Daegu, Korea
| | - G S Choi
- Department of Surgery, Kyungpook National University Hospital, Kyungpook National University School of Medicine, Daegu, Korea.
| | - S-H Jun
- Department of Surgery, Kyungpook National University Hospital, Kyungpook National University School of Medicine, Daegu, Korea
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Park JK, Moon JH, Kim HK, Choi HJ, Kang JH, Kim HK, Ko BM, Cho YD, Lee MS, Shim CS. Wire-guided endoscopic snare resection of a choledochocele-associated villous adenoma. Endoscopy 2009; 41 Suppl 2:E78-9. [PMID: 19370521 DOI: 10.1055/s-0029-1214429] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/10/2022]
Affiliation(s)
- J K Park
- Digestive Disease Center, Department of Internal Medicine, Soon Chun Hyang University School of Medicine, Bucheon and Seoul, Korea
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Han K, Lee JE, Kwon SJ, Park SY, Shim SH, Kim H, Moon JH, Suh CS, Lim HJ. Human amnion-derived mesenchymal stem cells are a potential source for uterine stem cell therapy. Cell Prolif 2008; 41:709-25. [PMID: 18823496 DOI: 10.1111/j.1365-2184.2008.00553.x] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
OBJECTIVES Human amnion is an easy-to-obtain novel source of human mesenchymal stem cells, which poses little or no ethical dilemmas. We have previously shown that human amnion-derived mesenchymal (HAM) cells exhibit certain mesenchymal stem cell-like characteristics with respect to expression of stem cell markers and differentiation potentials. MATERIALS AND METHODS In this study, we further characterized HAM cells' potential for in vivo therapeutic application. RESULTS Flow cytometric analyses of HAM cells show that they express several stem cell-related cell surface markers, including CD90, CD105, CD59, CD49d, CD44 and HLA-ABC, but not CD45, CD34, CD31, CD106 or HLA-DR. HAM cells at the 10th passage showed normal karyotype. More interestingly, the AbdB-like HOXA genes HOXA9, HOXA10 and HOXA11 that are expressed in the mesenchyme of the developing female reproductive tract and pregnant uteri are also expressed in HAM cells, suggesting similarities between these two mesenchymal cell types. Progesterone receptor is also highly expressed in HAM cells and expression of genes or proteins in HAM cells could be manipulated with the aid of lentivirus technology or cell-permeable peptides. To test potentials of HAM cells for in vivo application, we introduced enhanced green fluorescence protein (EGFP)-expressing HAM cells to mice by intrauterine infusion (into uteri) or by intravenous injection (into the circulation). Presence of EGFP-expressing cells within the uterine mesenchyme after intrauterine infusion or in lungs after intravenous injection was noted within 1-4 weeks. CONCLUSIONS Collectively, these results suggest that HAM cells are a potential source of mesenchymal stem cells with therapeutic potential.
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Affiliation(s)
- K Han
- Department of Biomedical Science and Technology, Research Center for Drugs, Institute of Biomedical Science and Technology, Konkuk University, Seoul, South Korea
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Moon JH, Park CH, Kim KO, Hahn T, Yoo K, Park SH, Kim JH, Park CK. Sigmoidorectal intussusception caused by a malignant tumor of the sigmoid colon: computed tomography with three-dimensional reconstruction. Endoscopy 2008; 38 Suppl 2:E67. [PMID: 17366422 DOI: 10.1055/s-2006-944710] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/10/2022]
Affiliation(s)
- J H Moon
- Department of Internal Medicine, College of Medicine, Hallym University, Anyang, Korea
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Chae YS, Sohn SK, Kim JG, Cho YY, Moon JH, Shin HJ, Chung JS, Cho GJ, Yang DH, Lee JJ, Kim YK, Kim HJ. New myeloablative conditioning regimen with fludarabine and busulfan for allogeneic stem cell transplantation: comparison with BuCy2. Bone Marrow Transplant 2007; 40:541-7. [PMID: 17637692 DOI: 10.1038/sj.bmt.1705770] [Citation(s) in RCA: 53] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
A regimen of busulfan and cyclophosphamide (BuCy2) is regarded as the standard myeloablative regimen for SCT. This study evaluated the hypothesis that fludarabine can replace cyclophosphamide for myeloablative allogeneic SCT. Ninety-five patients underwent allogeneic SCT from HLA-identical donors, following BuCy2 (n=55) or busulfan+fludarabine (BF, n=40). The efficacy of fludarabine compared to cyclophosphamide was retrospectively evaluated. The BF group exhibited a shorter duration until engraftment (P=0.001), lower incidence of acute and chronic GVHD (P<0.001 and P=0.003, respectively), and non-relapse mortality (NRM) (P=0.039). Furthermore, the event-free survival and overall survival were significantly higher for the BF group compared to the BuCy2 group (P=0.004 and 0.002, respectively). After adjusting for age, the risk status of disease, GVHD prophylaxis and donor type, the BF regimen was found to be an independent favorable risk factor for event-free survival (hazard ratio (HR), 0.181; 95% confidence interval, 0.045-0.720; P=0.016) and overall survival (HR, 0.168; 0.035-0.807; P=0.026). The replacement of cyclophosphamide with fludarabine for myeloablative conditioning seems to be more effective in terms of short-term NRM, and GVHD compared to BuCy2 regimen in allogeneic transplantation.
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Affiliation(s)
- Y S Chae
- 1Department of Hematology/Oncology, Kyungpook National University Hospital, Daegu, Korea
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Cho MM, Kobayashi K, Aoki T, Nishioka K, Yoshida K, Hatano N, Hirose H, Moon JH, Matsumoto T, Uemura Y, Kaneko T, Okagawa K. Surgical resection of solitary adrenal metastasis from esophageal carcinoma following esophagectomy. Dis Esophagus 2007; 20:79-81. [PMID: 17227316 DOI: 10.1111/j.1442-2050.2006.00610.x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The prognosis of esophageal carcinoma following esophagectomy is poor due to a high frequency of metastasis to periesophageal lymph nodes and distant organs. However, we experienced a case with good prognosis following resection of a solitary adrenal metastatic tumor. The patient was a 70-year-old man diagnosed with type 2 esophageal cancer (Lt-Ae, T2N1M0, Stage IIB) who was treated with esophagectomy. Eight months following surgery, solitary adrenal metastasis was detected by CT, and was resected. At 42 months follow-up he has had a good quality of life in the community without evidence of recurrence. To the best of our knowledge, only five cases with resected solitary adrenal metastases including our case, have been reported, and show a greater than 1-year survival. Consequently, we suggest that resection of solitary organ metastases is a good alternative, even following esophagectomy.
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Affiliation(s)
- M M Cho
- Department of Surgery, Kinki Central Hospital, The Mutual Aid Association of Public School Teachers, Hyogo, Japan.
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Moon JH, Kim JH, Park CH, Jung JO, Shin WG, Kim JP, Kim KO, Hahn T, Yoo KS, Park SH, Park CK. Endoscopic submucosal resection with double ligation technique for treatment of small rectal carcinoid tumors. Endoscopy 2006; 38:511-4. [PMID: 16767589 DOI: 10.1055/s-2006-925074] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
BACKGROUND AND STUDY AIMS It is difficult to achieve complete endoscopic resection of rectal carcinoid tumors without any procedure-related complications. In this study, we evaluated the efficacy and safety of endoscopic submucosal resection with double ligation (ESMR-DL) for the treatment of small rectal carcinoid tumors. PATIENTS AND METHODS Eleven rectal carcinoid tumors (in 11 patients) were resected by ESMR-DL between November 2001 and April 2004, using a conventional single-channel endoscope with an attached band-ligator device. The lesion was aspirated into the ligator device and an elastic band was placed around the base; a detachable snare was then used to ligate the stalk below the elastic band; and snare resection was performed above the elastic band. The resected specimens were examined with respect to size, histological atypia, depth of invasion, and the histological appearance of the resection margins. RESULTS All the lesions were excised completely without any complications. There was no tumor invasion beyond the submucosal layer and there was no evidence of atypia in any of the specimens. Tumor diameter varied from 2.0 mm to 10.0 mm (average 6.2 mm). None of the 11 specimens showed histopathological evidence of tumor involvement at the resection margins. There were no immediate or late complications (bleeding or perforation) after ESMR-DL. There was no local recurrence and there were no distant metastases in any patients during the mean follow-up period of 18 months. CONCLUSION Endoscopic submucosal resection with double ligation is a useful and safe method for the treatment of small rectal carcinoid tumors.
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Affiliation(s)
- J H Moon
- Department of Internal Medicine, Hallym University, College of Medicine, Anyang, Republic of Korea
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Seo YL, Choi CS, Yoon DY, Yun EJ, Lee YJ, Park SJ, Moon JH, Cho SJ, Lee S, Han H, Kim SS, Lee JY. Benign Breast Diseases Associated With Cyclosporine Therapy in Renal Transplant Recipients. Transplant Proc 2005; 37:4315-9. [PMID: 16387108 DOI: 10.1016/j.transproceed.2005.10.111] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2005] [Indexed: 11/18/2022]
Abstract
PURPOSE Our aim was to correlate the radiologic characteristics of cyclosporine-induced benign breast diseases with clinical and pathologic findings. MATERIALS AND METHODS The clinical, mammographic, and ultrasonographic records of 33 female renal transplant recipients who received cyclosporine were retrospectively reviewed. Eleven patients had 46 breast masses on ultrasonography. We performed core needle biopsies on 20 masses and reviewed the pathologic findings. RESULTS Among 33 female renal transplant recipients, 11 (33%) had 46 benign breast lesions detected on ultrasonography. We performed core needle biopsies on 20 of the 46 masses. On pathologic examination, 12 were fibroadenomas, 6 showed fibrocystic changes, and 2 revealed dense fibrosis. Regardless of the final pathologic diagnosis, more than half of the lesions revealed severe lymphatic and venular swellings. Among 11 patients with breast lesions on ultrasonography, 10/11 (91%) showed multiplicity, and 7/11 (64%) bilaterality. Mammographically, patients with breast lesions revealed heterogeneous or extremely dense breast patterns, and 8 of 11 patients, circumscribed masses. Twenty-two patients without breast lesions showed scattered fibroglandular densities (n = 7), or heterogeneously dense (n = 11) or extremely dense (n = 4) breast patterns, and 3 of 22 patients showed vague or asymmetric densities that needed further evaluation. CONCLUSION The development of new breast lesions in patients after renal transplantation should suggest a diagnosis of cyclosporine-induced benign breast disease including fibroadenoma, fibrocystic changes, and dense fibrosis.
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Affiliation(s)
- Y L Seo
- Department of Radiology, Kangwon National University School of Medicine, Hallym University College of Medicine, Kangdong Sacred Heart Hospital, Seoul, Democratic People's Republic of Korea.
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Kang SW, Shin JC, Park CI, Moon JH, Rha DW, Cho DH. Relationship between inspiratory muscle strength and cough capacity in cervical spinal cord injured patients. Spinal Cord 2005; 44:242-8. [PMID: 16151446 DOI: 10.1038/sj.sc.3101835] [Citation(s) in RCA: 64] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
STUDY DESIGN Prospective single centre study. OBJECTIVES Pulmonary rehabilitation focuses on improving the expiratory muscle function in order to increase the reduced cough capacity in patients with cervical spinal cord injuries (SCI). However, an improvement in the inspiratory function is also important for coughing effectively. Therefore, this study was to examine the significance of the inspiratory muscle strength on the cough capacity in the patients with a cervical SCI. SETTING SCI unit, Yonsei Rehabilitation Hospital, Seoul, Korea. METHODS The vital capacity (VC), maximum inspiratory pressure (MIP), and maximum expiratory pressure (MEP) were measured. Moreover, the unassisted peak cough flow (PCF) and assisted PCF under three conditions were evaluated. RESULTS All three assisted cough methods showed a significantly higher value than the unassisted method (P < 0.001). The VC correlated with the voluntary cough capacity and the MIP (R = 0.749) correlated more significantly with the VC than the MEP (R = 0.438) (P < 0.01). The MIP showed a higher correlation with both the unassisted PCF and all three assisted PCFs than the MEP (P < 0.001). CONCLUSIONS The management of the inspiratory muscle strength should be considered in the pulmonary rehabilitation at cervical SCI patients.
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Affiliation(s)
- S W Kang
- Department and Research Institute of Rehabilitation Medicine, Yonsei University College of Medicine, Seoul, Korea
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Shim CS, Cheon YK, Cha SW, Bhandari S, Moon JH, Cho YD, Kim YS, Lee LS, Lee MS, Kim BS. Prospective study of the effectiveness of percutaneous transhepatic photodynamic therapy for advanced bile duct cancer and the role of intraductal ultrasonography in response assessment. Endoscopy 2005; 37:425-33. [PMID: 15844020 DOI: 10.1055/s-2005-861294] [Citation(s) in RCA: 70] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
BACKGROUND AND STUDY AIMS We evaluated the therapeutic effects of percutaneous transhepatic photodynamic therapy (PDT) in patients with advanced bile duct cancer. The utility of intraductal ultrasonography (IDUS) for the assessment of responses and for regular follow up after PDT was also examined. METHODS Percutaneous transhepatic biliary drainage (PTBD) was initiated before PDT. Following dilation and maturation of the PTBD tract, percutaneous PDT was performed. Intraluminal photoactivation was carried out using percutaneous cholangioscopy 2 days after intravenous application of a hematoporphyrin derivative. All patients were additionally provided with percutaneous bile duct drainage catheters after PDT. IDUS was conducted monthly to measure the thickness of the tumor mass before and after PDT. RESULTS 24 patients with advanced cholangiocarcinomas (Bismuth IIIa, n = 4; IIIb, n = 10; IV, n = 10) were treated with PDT. At 3 months after PDT, the mean thickness of the tumor mass had decreased from 8.7 +/- 3.7 mm to 5.8 +/- 2.0 mm (P < 0.01). At 4 months after PDT, the thickness of the mass had increased to 7.0 +/- 3.7 mm. Quality of life indices improved dramatically and remained stable 1 month after PDT; the Karnofsky index increased from 39.1 +/- 11.36 to 58.2 +/- 22.72 points (P = 0.003). The 30-day mortality rate was 0 %, and the median survival time was 558 +/- 178.8 days (current range 62 - 810 days). CONCLUSIONS PDT using percutaneous cholangioscopy is safe and effective for advanced hilar cholangiocarcinoma, and seems to prolong survival. IDUS is useful for evaluating changes in the thickness of the tumor mass after PDT.
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Affiliation(s)
- C S Shim
- Institute for Digestive Research and Digestive Disease Center, Soon Chun Hyang University College of Medicine, Seoul, Korea.
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Jung IS, Shim CS, Cheon YK, Bhandari S, Cha SW, Moon JH, Cho YD, Kim JH, Kim YS, Lee MS, Kim BS. Invasive intraductal papillary mucinous tumor of the pancreas with simultaneous invasion of the stomach and duodenum. Endoscopy 2004; 36:186-9. [PMID: 14765321 DOI: 10.1055/s-2004-814190] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
An 81-year-old woman was admitted with epigastric pain and weight loss. She had been diagnosed with an intraductal papillary mucosal tumor (IPMT) 7 years previously, but had refused surgery for religious reasons. Esophagogastroduodenoscopy revealed a nodular, elevated lesion that was discharging mucin into the duodenal bulb and posterior wall of the upper body of the stomach. Endoscopic ultrasonography, abdominal computed tomography, and endoscopic retrograde cholangiography were carried out, and a highly invasive IPMT with simultaneous invasion of the stomach and duodenum was diagnosed.
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Affiliation(s)
- I S Jung
- Institute for Digestive Research, Soon Chun Hyang University College of Medicine, Seoul, Korea
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Cheon YK, Moon JH, Cho YD, Lee MS, Shim CS. Endoscopic management of choledocholithiasis resulting from a biliary metal stent. Endoscopy 2003; 35:636. [PMID: 12822110 DOI: 10.1055/s-2003-40221] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/10/2022]
Affiliation(s)
- Y K Cheon
- Institute for Digestive Research, Digestive Disease Center, College of Medicine, Soon Chun Hyang University, Seoul, Korea
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Terao J, Yamaguchi S, Shirai M, Miyoshi M, Moon JH, Oshima S, Inakuma T, Tsushida T, Kato Y. Protection by quercetin and quercetin 3-O-beta-D-glucuronide of peroxynitrite-induced antioxidant consumption in human plasma low-density lipoprotein. Free Radic Res 2001; 35:925-31. [PMID: 11811543 DOI: 10.1080/10715760100301421] [Citation(s) in RCA: 52] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
Effect of quercetin and its conjugated metabolite quercetin 3-O-beta-D-glucuronide (Q3GA), on peroxynitrite-induced consumption of lipophilic antioxidants in human plasma low-density lipoprotein (LDL) was measured to estimate the role of dietary flavonoids in the defense system against oxidative modification of LDL based on the reaction of nitric oxide and superoxide anion. Synthesized peroxynitrite-induced consumption of endogenous lycopene beta-carotene and alpha-tocopherol was effectively suppressed by adding quercetin aglycone into LDL solution. Q3GA also inhibited the consumption of these antioxidants effectively. These results indicate that dietary quercetin is capable of inhibiting peroxynitrite-induced oxidative modification of LDL in association with lipophilic antioxidants present within this lipoprotein particle.
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Affiliation(s)
- J Terao
- Department of Nutrition, School of Medicine, The University of Tokushima, Japan
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Shirai M, Moon JH, Tsushida T, Terao J. Inhibitory effect of a quercetin metabolite, quercetin 3-O-beta-D-glucuronide, on lipid peroxidation in liposomal membranes. J Agric Food Chem 2001; 49:5602-5608. [PMID: 11714366 DOI: 10.1021/jf010713g] [Citation(s) in RCA: 63] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
To study the antioxidant activity of quercetin 3-O-beta-D-glucuronide (Q3GA), which is one of the quercetin metabolites in the blood after intake of quercetin-rich food, the inhibitory effect of Q3GA on lipid peroxidation was estimated using phosphatidylcholine large unilamellar vesicles (PC LUV) as a biomembrane model. Iron ion, an aqueous peroxyl radical generator, a peroxynitrite generator, or lipoxygenase was used as the inducer of lipid peroxidation. In all cases, Q3GA inhibited lipid peroxidation significantly, although its inhibitory effect was lower than that of quercetin aglycon. The ultrafiltration of PC LUV containing Q3GA revealed that Q3GA has low but significant affinity with the membranes of phospholipid bilayers. It is therefore likely that Q3GA acts as an efficient antioxidant in membranous lipid peroxidation through its localization in the phospholipid bilayer. This conjugated quercetin metabolite seems to retain the ability to protect cellular and subcellular membranes from peroxidative attack by reactive oxygen species and peroxidative enzymes.
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Affiliation(s)
- M Shirai
- Department of Nutrition, School of Medicine, The University of Tokushima, Tokushima 770-8503, Japan
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Shim CS, Cho YD, Moon JH, Kim JO, Cho JY, Kim YS, Lee JS, Lee MS. Fixation of a modified covered esophageal stent: its clinical usefulness for preventing stent migration. Endoscopy 2001; 33:843-8. [PMID: 11571679 DOI: 10.1055/s-2001-17326] [Citation(s) in RCA: 63] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
BACKGROUND AND STUDY AIMS Membrane-covered self-expandable metal stents are effective in preventing tumor ingrowth and stent obstruction in patients with inoperable esophageal cancer, but migration of stents continues to be a major problem. We therefore constructed a modified covered self-expandable esophageal metal stent capable of being fixed using a silk thread. The stent was studied prospectively to define its palliative characteristics and whether it is effective in preventing migration. PATIENTS AND METHODS Modified covered self-expandable metal stents were placed in 17 patients with malignant gastric cardiac cancer involving the esophagogastric junction, 41 patients with esophageal cancer, and three patients with tracheoesophageal fistulas. Clinical and radiographic follow-up examinations were carried out at regular intervals. RESULTS Placement of the stent was successful in all patients, with good symptomatic relief and no serious stent-related complications such as esophageal perforation or hemorrhage. Acute stent placement problems, such as incomplete expansion or acute angulation of the stent, were noted in four patients. However, during a mean follow-up period of 7.5 months (range 1 to 17 months), there was no stent migration. CONCLUSIONS Modified covered self-expandable esophageal metal stents of this type would be very effective in preventing stent migration, especially in patients with malignant gastric cardiac cancer extending to the lower esophagus, those with short-segment esophageal cancer, and those with tracheoesophageal fistulas.
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Affiliation(s)
- C S Shim
- Dept. of Internal Medicine, Institute for Digestive Research, Soon Chun Hyang University College of Medicine, Seoul, Korea.
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Moon JH, Cho YD, Ryu CB, Kim JO, Cho JY, Kim YS, Lee JS, Lee MS, Shim CS. The role of percutaneous transhepatic papillary balloon dilation in percutaneous choledochoscopic lithotomy. Gastrointest Endosc 2001; 54:232-6. [PMID: 11474400 DOI: 10.1067/mge.2001.116881] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/10/2022]
Abstract
BACKGROUND When choledochoscopic lithotomy with basket and electrohydraulic lithotripsy is used to remove intrahepatic duct stones, fragments or small stones usually remain in the bile duct that are too small to be captured with a basket. METHODS An attempt was made to remove stone fragments in 16 patients with intrahepatic duct stones by antegrade balloon dilation of the sphincter of Oddi with a conventional balloon catheter. After balloon dilation, remnant stones and sludge were pushed through the papilla with the choledochoscope. RESULTS Bile duct stones were completely removed in 12 of 16 patients (75%); stones were removed in 1 session. There was no clinical evidence of procedure-related pancreatitis or fatal complications. CONCLUSIONS Percutaneous transhepatic papillary balloon dilation of the sphincter of Oddi and clearance of remnant bile duct stones and stone fragments with the tip of choledochoscope is simple and effective in patients undergoing percutaneous transhepatic choledochoscopic lithotomy.
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Affiliation(s)
- J H Moon
- Institute for Digestive Research, Digestive Disease Center, Soon Chun Hyang University College of Medicine, Seoul, Korea
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Murota K, Shimizu S, Chujo H, Moon JH, Terao J. Efficiency of absorption and metabolic conversion of quercetin and its glucosides in human intestinal cell line Caco-2. Arch Biochem Biophys 2001; 384:391-7. [PMID: 11368329 DOI: 10.1006/abbi.2000.2123] [Citation(s) in RCA: 107] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
The efficiency of intestinal absorption and metabolic conversion of quercetin aglycone and its glucosides, quercetin-4'-O-beta-D-glucoside (Q4'G), quercetin-3-O-beta-D-glucoside (Q3G), and quercetin-3,4'-di-O-beta-D-glucoside (Q3,4'G), was estimated by using Caco-2 cell monolayers as an intestinal epithelial cell model. Aglycone was significantly lost from the apical side, resulting in the appearance of free and conjugated forms of quercetin and those of isorhamnetin in the cellular extracts. In the basolateral solution, the conjugated form of quercetin was predominant and increased with the elapse of incubation. As compared with quercetin aglycone, none of the quercetin glucosides were absorbed efficiently from apical side. However, Q4'G yielded conjugated quercetin and isorhamnetin in basolateral solution at higher amounts than Q3G or Q3,4'G. Lipophilicity of Q4'G was found to be higher than that of Q3G or Q3,4'G. This suggests that lipophilicity contributes to the relatively efficient absorption of Q4'G. It is likely that the occurrence of hydrolysis enhances the efficiency of intestinal absorption and metabolic conversion of dietary quercetin glucosides.
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Affiliation(s)
- K Murota
- Department of Nutrition, School of Medicine, The University of Tokushima, Japan
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