• Biomolecules & Therapeutics
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• v.27 no.1
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• pp.1-14
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• 2019

Resveratrol was first isolated in 1939 by Takaoka from Veratrum grandiflorum O. Loes. Following this discovery, sporadic descriptive reports appeared in the literature. However, spurred by our seminal paper published nearly 60 years later, resveratrol became a household word and the subject of extensive investigation. Now, in addition to appearing in over 20,000 research papers, resveratrol has inspired monographs, conferences, symposia, patents, chemical derivatives, etc. In addition, dietary supplements are marketed under various tradenames. Once resveratrol was brought to the limelight, early research tended to focus on pharmacological activities related to the cardiovascular system, inflammation, and cancer but, over the years, the horizon greatly expanded. Around 130 human clinical trials have been (or are being) conducted with varying results. This may be due to factors such as disparate doses (ca. 5 to 5,000 mg/day) and variable experimental settings. Further, molecular targets are numerous and a dominant mechanism is elusive or nonexistent. In this context, the compound is overtly promiscuous. Nonetheless, since the safety profile is pristine, and use as a dietary supplement is prevalent, these features are not viewed as detrimental. Given the ongoing history of resveratrol, it is reasonable to advocate for additional development and further clinical investigation. Topical preparations seem especially promising, as do conditions that can respond to anti-inflammatory action and/or direct exposure, such as colon cancer prevention. Although the ultimate fate of resveratrol remains an open question, thus far, the compound has inspired innovative scientific concepts and enhanced public awareness of preventative health care.

• Asian Pacific Journal of Cancer Prevention
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• v.17 no.2
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• pp.713-717
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• 2016

Background: To evaluate the prevalence and features of other gynecologic or surgical lesions in endometrial cancer (EMC) patients. Materials and Methods: Clinico-pathological data of EMC patients who were treated in the institution from 1995 to 2012 were collected. Data collected were age, stage of disease according to the FIGO 2009 criteria (FIGO), histopathology, tumor grade, adjuvant therapy, other gynecologic or surgical lesions, follow-up period, and living status. Results: The mean age of 396 patients was $56.7{\pm}10.64years$. Abnormal uterine bleeding was the most common presenting symptom (90.1%). Bleeding was accompanied with pelvic mass in 7.7% and 5.4% had only a pelvic mass. Abnormal cervical cytology was found in 3.8%. Approximately 75% had early stage diseases and 86% had endometrioid histology. We found 55.8% of EMC patients had other gynecologic lesions: 89.6% benign and 9.5% malignant. Some 4.5% had pre-invasive cervical/vulva/vagina lesions. The two most common gynecologic lesions were myoma uteri and ovarian tumors. Focusing on the latter, approximately 14% were benign while 8% were malignant. Among 364 patients with available data, surgical lesions were found in 11.8%, 5.7% benign and 9.2% malignant. The most common benign surgical condition was chronic appendicitis while breast and colon cancers were the two most common malignant lesions found. Conclusions: More than half of EMC patients had other gynecologic lesions including benign and malignant tumors. Surgical lesions were also found in more than one-tenth of patients. Careful pre-operative evaluation and intra-operative inspection are advised for proper management and better prognosis.

• Journal of Gastric Cancer
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• v.6 no.3
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• pp.198-201
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• 2006

Hyponatremia is a dangerous electrolyte disturbance in patients on chemotherapy and may cause sudden death if not detected early. SIADH (syndrome of inappropriate antidiuretic hormone) is one of the known causes of hyponatremia in patients undergoing chemotherapy. Few chemotherapeutic agents, however, are reported to cause SIADH. The current study reports that SIADH developed in a 55 year old woman on S-1 ($80\;mg/m^{2}$) and cisplatin ($60\;mg/m^{2}$) chemotherapy for the peritoneal metastasis of gastric cancer. The patient underwent a total gastrectomy, a splenectomy, and a segmental resection of the transverse colon for gastric cancer. She had used thiazide and ${\beta}-blocker$ to treat hyperiension for 12 years. She admitted to our hospital with complaining of general weakness, dysarthria, loss of appetite, and urinary discomfort. The serum level of sodium and potassium were 94 mEq/L and 2.2 mEq/L respectively. The hyponatremia completely resolved uneventfully after 3% saline infusion, which led to normalized electrolyte balance. The patient was discharged on the 13th hospital day.

• Journal of Life Science
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• v.33 no.2
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• pp.149-157
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• 2023

Transforming growth factor-β (TGF-β) is a multifunctional cytokine that affects not only the survival and growth of cancer cells but also the activity of immune cells. Although it has been generally accepted that cancer cell-derived TGF-β could promote the survival and growth of early cancer cells and have immunosuppressive roles, it has been known that TGF-β has differential effects according to the type or stage of cancer cells. Therefore, it is hard to clearly define its role in cancer progression and immune responses. This study investigated the effects of TGF-β signaling on the expression of five NKG2D ligands and the NK cell-mediated anticancer immune response in the primary colon cancer cell line KM12C and its two metastatic cell lines, KM12SM and KM12L4A. At the surface protein level, exogenous TGF-β decreased the expression of MICA, MICB, ULBP1, and ULBP2, and galunisertib increased the expression of MICA, MIAB, ULBP1, ULBP2, and ULBP3 in KM12C. However, KM12SM and KM12L4A showed no significant changes in the expression of NKG2DLs after treatment with TGF-β or galunisertib. TGF-β signaling inhibition via galunisertib improved the NK cell-mediated anticancer immune response against KM12C but did not show a significant response to KM12SM and KM12L4A. Therefore, the suppression of TGF-β signaling could improve the NK cell-mediated anticancer immune response against KM12C. However, an increase in NKG2DLs expression and an enhanced NK cell-mediated cancer immune response is hard to expect due to the alteration of TGF-β signaling in KM12SM and KM12L4A.

• Asian Oncology Nursing
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• v.5 no.1
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• pp.52-62
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• 2005

Purpose: This study was to analyze the research trend centering on the theses to cancer nursing research in digestive system released in Korea. Method: The researcher collected the academic degrees and theses published on the book of the academic soceity from January 1993 to August, 2004, and examined 38 domestic papers of cancer nursing research in digestive system. Results: 1) As for the subject, the results were : patients with stomach cancer 25(66%), colon cancer 4(11%), rectal cancer 3(8%), and others(taxi drivers 2, family of cancer patents. 2) As for the research designs the result were : quantitative studies were 33(87%), and qualitative studies were 9(23%). 3) As for key concepts of survey, the results were : life patterns of patients with rectal cancer, oral intake of stomach cancer patients, fatigue of stomach cancer patients undergoing chemotherapy, nursing needs when discharging from hospital after operation with gastrectomy, and so on. 4) As for the comparative studies, the results were : risk factors between colorectal patients and general population, early symptom and risk factors between stomach cancer patients and general population, and risk factors between stomach cancer and patients with gastritis. 5) As for main concepts of correlational studies, the results were : quality of life, health belief, fatigue, health promotion behavior, social support, straitanxiety. 6) The treatment of experimental research, the results were : information services, arc reflex massage, acupressure, educational program for discharge, 7)As for the qualitative studies, in terms of subjects, stomach cancer patients were 2, spouse of patients with stomach cancer was 1, rectal cancer patients were 2. In the theme of the qualitative studies, the results were: experience of family of patients with stomach cancer, experience of long term survival of patients with rectal cancer, experience of disease process of rectal cancer patiens. 8) As for the used instrument in studies, the results were : Strait-anxiety Scale by Spielberger, Nausea and Vomiting Scale by Rhodes, Social support by Tae and Lee, Health belief by Champion, Becker, and Moon. QOL by NCCN, Roh, Pdilla, Kwon, Revised Fatigue Scale by Piper, Health Locus of Control by Wallston and Wallston, Uncertainty Scale by Mishel. Conclusions: More research needs to be encouraged in various subject of cancer patients in digestive system. More nonexperimental and experimental researches should be conducted for the establishment of the basis of practical and theoretical framework and the providing good quality of care for cancer patients.

• Journal of Digestive Cancer Research
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• v.6 no.2
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• pp.69-72
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• 2018

Mucinous adenocarcinoma occurs in 1.6-25.4% of patients with colorectal cancer. We report a case of a 27-year-old man with negative findings on initial colonoscopic biopsy, but finally diagnosed with mucinous adenocarcinoma of the colon. After undergoing an abdominal CT due to persistent abdominal pain, he was transferred to our hospital. The abdominal CT showed a diffuse and irregular wall thickening in the distal transverse colon. Due to the edema and stenosis of colonic wall, it was difficult to insert the colonoscope into the proximal region; a biopsy revealed chronic colitis with lymphofollicular hyperplasia. Transverse colectomy and lymph node dissection were performed. The diagnosis was mucinous adenocarcinoma of approximately 20×4.5 cm. Compared to adenocarcinoma, mucinous adenocarcinoma is found in a younger population with an advanced stage and is less responsive to palliative chemotherapy. Therefore, recalcitrant abdominal pain even in young people warrants early detection through appropriate examinations such as abdominal CT and colonoscopy.

• Journal of Industrial Technology
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• v.25 no.B
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• pp.241-251
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• 2005

Exopolysaccharide (CBP) from submerged culture broth of Ganoderma lucidum mycelium and the water soluble (BWS) and water insoluble (BWI) fractions of CBP were prepared by gel filtration. Antitumor activity and effects on proliferation and differenciation of human cancer cells and mouse NIH 3T3 cells were studied. Cytotoxicity test of CBP, BWS and BWI fractions on human cancer cell lines was performed by using sulforhodamine B (SRB) assay. A549 (lung carcinoma), Colo320 DM and HSR (colon carcinoma), and NIH 3T3 cells were used. BWI fraction showed the strongest cytotoxicity (maximum 20% survival) to all human cells tested. However it did not induced apoptosis. Interestingly BWI fraction did not exert cytotoxic effect on NIH 3T3 cells at low concentration of cells ($5{\times}10^4$) but strong toxic effect at high concentration of cells($5{\times}10^5$) which showed transformed morphology. These results suggest that BWI may have cancer cell specific anticancer activity. However, BWI fraction did not effect the amount of pRb and c-myc protein, which implied that BWI fraction did not act at the early stage of signal transduction pathway. CBP fraction induced differenciation of human leukemic cell line, HL-60 cells suggesting the carcinogenesis prevention of normal cell and possible induction of normalization for cancer cell.

• The Korean Journal of Nuclear Medicine
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• v.30 no.4
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• pp.516-523
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• 1996

The purpose of this study was to evaluate the clinical usefulness of I-123 MIBG scintigraphy with early planar and SPECT image in the diagnosis of neuroendocrine tumors. We reviewed I-123 MIBG scintigraphies of 21 patients who had been suspected to have neuroendocrine tumors by CT or MRI findings. Early 4 hour planar and SPECT images were obtained in all patients and delayed (13-24 hour) planar images were performed in 17 patients. Final diagnoses were made by surgery, biopsy, or clinical follow up. Twelve patients were confirmed to have neuroendocrine tumors. With 4 hour planar and SPECT images, there were 9 true positives(6 pheochromocytomas, 1 paraganglioma, 1 neuroblastoma, and 1 medullary cancer of the thyroid), 8 true negatives(1 adrenal cortical adenoma, 1 malignant fibrous histiocytoma, 1 adenoma in colon and 5 benign nonfunctioning adrenal tumors), 1 false positive(hepatocellular carcinoma) and 3 false negatives(1 recurred medullary cancer of the thyroid, 1 liver metastasis of carcinoid tumor and 1 ganglioneuroma). The sensitivity and specificity of I-123 MIBG scintigraphy were 75% and 89%, respectively. SPECT images provided good anatomical correlation with CT or MRI. Delayed images showed increased tumor to background ratio in 5 out of 8 true positive patients, but did not change the diagnosis. In conclusion, early 4 hour images with I-123 MIBG is clinically convenient and useful method in the detection of neuroendocrine tumors, and SPECT images can provide good anatomical correlation with CT or MRI.

• Journal of Life Science
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• v.9 no.2
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• pp.160-168
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• 1999

Butyrate is one of the short-chain fatty acids that are present in the colon of mammals in millimolar concentration as a result of microbial anaerobic fermentation of dietary fiber, undigested starch, and proteins. In this study, sodium butyrate was examined in HT29 cell, human colonic cancer cell line, on cell viability, alkaline phosphatase activity, PLC-${\gamma}$1 expression and complex sphingolipid biosynthesis. Treatment with butyrate showed that the decrease of cell adhesion and viability was time-dependent. Sodium butyrate also induced to increase the activity of alkaline phosphatase which is a differentiation marker enzyme and decrease the expression of PLC-${\gamma}$1. Biosynthesis of sphingomyelin and galactosylceramide by butyrate treatment were decreased so fast but ceramide was increased 680dpm/mg protein% more than untreated group on first day and then decreased fast. In addition, acid ceramidase and neutral ceramidase activity were inhibited early stage by sodium butyrate. These results suggest that sodium butyrate causes cell differentiation or cell growth arrest of HT29 cell accompanied by early increase of ceramide content and alkaline phosphatase activity and decrease of galactosylceramide content and PLC-r1 expression.

• Asian Pacific Journal of Cancer Prevention
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• v.17 no.5
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• pp.2479-2483
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• 2016

Background: This study explored the knowledge and awareness about colorectal cancer (CRC) among undergraduate students of one of the leading universities in Saudi Arabia, along with the mode of information access. Materials and Methods: The present cross-sectional study was conducted at the King Abdulaziz University, Jeddah, Saudi Arabia, among students of different faculties. The study questionnaire, containing 28 items, was adapted from surveys identified in the relevant literature. The CRC awareness questionnaire consisted of an awareness section (early CRC signs and symptoms, and risk factors) and a knowledge section. The data were analyzed using the SPSS version 21.0. Results: A total of 525 undergraduate students participated in the study. The majority were females (63.0%) and approximately half (56.8%) were medical students. The majority of the students (82.3%) were aware of CRC, and 68% thought that CRC is a preventable disease. Regarding colorectal cancer screening tests, only one-third of students (33%) had actual knowledge, while the majority of the students (77.0%) thought that there are tests which help in early detection. Only 4% of the participants had a family history of CRC. The majority of the participants (84%) thought that CRC is a disease that can be cured. Almost 50-60% participants had good awareness level regarding risk factors, and signs and symptoms. Regarding knowledge, participant responses varied for family history (52%), age (59%), chronic infection of the colon (72%), obesity and lack of exercise (66%). More than one-third of the students had received information material regarding CRC from their curriculum followed by social media (20.4%), and nearly 40% from other sources such as TV, hospital and mass media. Female participants had significantly better awareness in a few questions regarding CRC awareness as compared to their male counterparts. There was a significant difference observed between medical and non-medical students (p<0.001) in overall score of awareness and knowledge about CRC while no significant difference found in gender-wise comparison. Conclusions: Knowledge and awareness of students about CRC were not up to the mark. Medical students and female students had better knowledge in a few areas, but the overall situation is dismal.