• Biomolecules & Therapeutics
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• v.31 no.3
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• pp.330-339
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• 2023

Liver kinase B1 (LKB1) is a crucial tumor suppressor involved in various cellular processes, including embryonic development, tumor initiation and progression, cell adhesion, apoptosis, and metabolism. However, the precise mechanisms underlying its functions remain elusive. In this study, we demonstrate that LKB1 interacts directly with malic enzyme 3 (ME3) through the N-terminus of the enzyme and identified the binding regions necessary for this interaction. The binding activity was confirmed to promote the expression of ME3 in an LKB1-dependent manner and was also shown to induce apoptosis activity. Furthermore, LKB1 and ME3 overexpression upregulated the expression of tumour suppressor proteins (p53 and p21) and downregulated the expression of antiapoptotic proteins (nuclear factor kappa-light-chain-enhancer of activated B cells (NF-κB) and B-cell lymphoma 2 (Bcl-2)). Additionally, LKB1 and ME3 enhanced the transcription of p21 and p53 and inhibited the transcription of NF-κB. Moreover, LKB1 and ME3 suppressed the phosphorylation of various components of the phosphatidylinositol-4,5-bisphosphate 3-kinase/protein kinase B signaling pathway. Overall, these results suggest that LKB1 promotes pro-apoptotic activities by inducing ME3 expression.

• The Journal of Dong Guk Oriental Medicine
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• v.9
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• pp.139-154
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• 2000

This studies were examined in orther to investigate the object and the method of animal experimental papers on medicinal herbs of cancer therapeutic activities from the reported 23 literatures containing anti-cancer effects of medicinal herbs. The results were obtained as follows: 1. The oriental medicinal therapies on cancer were Pujeung(扶正法), Kuesa(祛邪法), Pujeungkuesa(扶正法邪法). 2. The experimental medicinal herbs of cancers therapy were 103 species, which was used for experimental cancer single or combine. Among then, Houttuyniae herba, Polyporus, Manitis squama, Evodiae fructus, Aucklandiae radix and Pharbitidis semen were effective for cancer treatment, while Houttuyniae herba inhibited tumor cells, but not normal cells. Also, Evodiae fructus, Aucklandiae radix and Pharbitidis semen showed strong cytoxicities on 20 different tumor cell lines, whereas Saururi herba seu rhizoma showed cytoxicity against HT-29 cell, melanoma, SK-MEL-5 cell, and Anemarrhenae rhizoma against ovarian tumor cell only, and Schizonepetae herba against HT-29 cell line only with a potent inhivitory activities. 3. P815 cell, Yac-1 cell, Sarcoma 180 cell, K 562 cell, and SNU-1 cells were frequently used as experimental cancer therapy.

• IMMUNE NETWORK
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• v.6 no.1
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• pp.43-51
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• 2006

Background: The DR-$70^{TM}$ immunoassay is a newly developed cancer diagnostic test which quantifies the serum fibrin degradation products (FDP), produced during fibrinolysis, by antibody reaction. The purpose of this study was to evaluate the potential of DR-$70^{TM}$ Immunoassay in screening malignant tumor. Methods: Sample subjects were 4,169 adults, both male and female, who visited the health promotion center of a general hospital from March 2004 to April 2005 and underwent the DR-$70^{TM}$ immunoassay test and other tests for cancer diagnosis. The patient group was defined as 42 adults out of the sample subjects who were newly diagnosed with cancer during the same time period when the DR-$70^{TM}$ immunoassay test was performed. Final confirmation of a malignant tumor was made by pathological analysis. Results: The mean DR-$70^{TM}$ level was $0.83{\pm}0.65{\mu}g/ml$ (range: 0.00 (0.0001)${\sim}7.42{\mu}g/ml)$ in the control group (n=4,127) as opposed to $2.70{\pm}2.33{\mu}g/ml$ (range: $0.12{\sim}9.30{\mu}g/ml)$ in the cancer group (n=42), and statistical significance was established (p<0.0001, Student t-test). When categorized by the type of malignant tumor, all cancer patients with the exception of the subgroups of colon and rectal cancer showed significantly higher mean DR-$70^{TM}$ levels compared with the control group (p<0.0001, Kruscal-Wallis test). The receiver operating characteristic (ROC) curve analysis revealed ${\geq}1.091{\mu}g/ml$ as the best cut-off value. Using this cut-off value, the DR-$70^{TM}$ immunoassay produced a sensitivity of 71.4%, a specificity of 70.1%, a positive predictability of 69.4%, and a negative predictability of 69.2% (1). Conclusion: A significant increase in the mean DR-$70^{TM}$ value was observed in the cancer group (thyroidal, gastric, breast, hepatic and ovarian) com pared with the control group. In particular, the specificity and sensitivity of the DR-$70^{TM}$ immunoassay was relatively high in the subgroups of breast, gastric, and thyroidal cancer patients. There is need for further studies on a large number of malignant tumor patients to see how the DR-$70^{TM}$ level might be changed according to the differentiation grade and postoperative prognosis of the malignant tumor.

• The Journal of Korean Society for Radiation Therapy
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• v.34
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• pp.73-82
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• 2022

Purpose: The purpose of this study is to evaluate the effectiveness of reducing the absorbed dose to the ovaries and the quality of the CBCT image when using the Halcyon^TM Fast kV CBCT of cervical cancer patients of child-bearing age who performed ovarian transposition Materials and Methods : Contouring of the cervix and ovaries required for measurement was performed on the computed tomography images of the human phantom (Alderson Rando Phantom, USA), and three Optically Stimulated Luminescence Dosimeter(OSLD) were attached to the selected organ cross-section, respectively. In order to measure the absorbed dose to the cervix and ovaries in the Truebeam^TM pelvis mode (Hereinafter referred to as TP), The Halcyon^TM Pelvis mode (Hereinafter referred to as HP) and The Halcyon^TM Pelvis Fast mode (Hereinafter referred to as HPF), An image was taken with a scan range of 17.5 cm and also taken an image that reduced the Scan range to 12.5cm. A total of 10 cumulative doses were summed, It was replaced with a value of 23 Fx, the number of cervical cancer treatments, and compared In additon, uniformity, low contrast visibility, spatial resolution, and geometric distortion were compared and analyzed using Catphan 504 phantom to compare CBCT image quality between equipment. Each factor was repeatedly measured three times, and the average value was obtained by analysing with the Doselab (Mobius Medical Systems, LP. Versions: 6.8) program. Results: As a result of measuring absorbed dose by CBCT with OSLD, TP and HP did not obtain significant results under the same conditions. The mode showing the greatest reduction value was HPF versus TP. In HPF, the absorbed dose was reduced by 39.8% in the cervix and 19.8% in the ovary compared to the TP in the scan range of 17.5 cm. the scan range was reduced to 12.5 cm, absorbed dose was reduced by 34.2% in the cervix and 50.5% in the ovary. In addition, result of evaluating the quality of the image used in the above experiment, it complied with the equipment manufacturer's standards with Geometric Distortion within 1mm (SBRT standard), Uniformity HU, LCV within 2.0%, Spatial Resolution more than 3 lp/mm. Conclusion: According to the results of this experiment, Halcyon^TM can select more various conditions than Truebeam^TM in treatment of fertility woman who have undergone ovarian Transposition , because it is important to reduce the radiation dose by CBCT during radiation therapy. So finally we recommend Halcyon^TM Fast kV CBCT which maintains image quality even at low mAs. However, it is consider that the additional exposure to low doses can be reduced by controlling the imaging range for patients who have undergone ovarian transposition in other treatment machines.

• Journal of Korean Public Health Nursing
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• v.17 no.1
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• pp.58-68
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• 2003

This study was conducted to explore the depression, anxiety, spouse support, and the difference of these variables according to the general characteristics and disease related characteristics in married women who had received gynecologic cancer treatment. The subjects consisted of 62 patients with cervical cancer, 18 patients with ovarian cancer, and 7 patients with endometrial cancer who were admitted to the department of obstetrics and gynecology, 3 education hospital in Seoul from January, 1996 to August, 1999. The data were collected from March 25 to July 25, 2000 by using a mailed questionnaire. The results were as follows : 1. The mean score of depression was 35.1 with the range from 20 to 76. The mean score of the anxiety was 38.6 with the range from 24 to 58. The mean score of the spouse support was 33.8 with the range from 12 to 48. 2. The score of depression was significantly different by the general characteristics: woman's education level(p=.040), economic level(p=.002), and the satisfactory level on married life(p=.009). The score of spouse support was significantly different by the general characteristics: woman's education level(p=.009), spouse's education level(p=.001), spouse's religion (p=.004), economic level(p=.008), and the satisfactory level on married life(p=.000). The scores of depression, anxiety, and spouse support were not significantly different by the disease related characteristics. 3. The score of depression had a positive correlation with anxiety(r=.731), and a negative correlation with spouse support(r=-.425). 4. The main influencing factors on the depression were economic level$(13.4\%)$ and satisfactory level on married life$(4.4\%)$. The main influencing factors on the spouse support were satisfactory level on married life$(23.6\%)$ and spouse's education level$(9.2\%)$. Based upon the above findings, the depression, anxiety, and spouse support of women who had received gynecologic cancer treatment were higher than healthy married women. The score of depression and anxiety had a negative correlation with spouse support. The factors influencing spouse support were satisfactory level on married life and spouse's education level. Therefore it is recommended that nursing intervention for women who had received gynecologic cancer treatment would be focused to improve spouse support for alleviating depression and anxiety level.

• Archives of Pharmacal Research
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• v.19 no.4
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• pp.307-311
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• 1996

The activity of fucosidase shows different value depending on disease, eg) fucosidosis and I cell disease are characterized by the absence or deficiences of .alpha.-fucosidase, and sera of ovarian cancer patients exhibited a statistically significant deficiency of .alpha.-L-fucosidase activity (Zielke et al., 1972; Kress et al., 1980; Barlow et al., 1981). For the purpose of diagnosis of these disease easily, the manual of test can be developed by preparing kits of hydrophobic-binding substrate of fucosidase that bind C18-column.

• Journal of Physiology & Pathology in Korean Medicine
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• v.22 no.4
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• pp.914-917
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• 2008

Primary carcinoma of the fallopian tube is exceedingly rare, accounting for 0.3 percent of female genital tract cancer. It is usually unilateral, but 20 percent of cases are bilateral. It occurs most commonly in women between 40 and 60 years old. Approximately 50 percent of the patients are nulliparous. Because of variable presenting symptoms and rarely incidence, preoperative diagnosis of fallopian tube carcinoma is seldom made. Evaluation and treatment are also essentially the same at that of ovarian carcinoma. We experienced a case of bilateral primary fallopian tube carcinoma in women presented with vaginal bleeding and pelvic mass, postoperatively pathologic examination of resected specimen after laparatomy and reported with brief review of literature.

• Korean Journal of Psychosomatic Medicine
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• v.4 no.1
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• pp.98-108
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• 1996

Korean women are now living almost 1/3 of their life after menopause. Sex-steroid hormone deficiency adversely affect various fields of physical & mental activity and quality of life during this period. Therefore, replacement of deficient hormone is thought to be natural therapeutic modality. Postmenopausal syndrome is recently redefined as an endocrinopathy with both short-and long-term sequelae, as a result of cessation of ovarian function. Hormone replacement therapy taken at or near time of menopause alleviates shot-term acute menopausal symptoms such as vasomotor disturbances and psychological problems. HRT also beneficially affects some of intermediate symptoms such as urogenital atrophy and cutaneous problems. The major benefits of long-term use were reductions in risk of long-term sequelae, that is, total fracture by 50-60%, cardiovascular disease by 50% and cerebrovascular disease by 30-40%, respectively. In addition, HRT may also positively influence Alzheimer's disease, reduce the colorectal cancer risk and increase longevity of the life. In conclusion, all postmenopausal women should consider preventive HRT when there are no contraindications.

• Nuclear Medicine and Molecular Imaging
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• v.42 no.sup1
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• pp.110-112
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• 2008

Endometrial carcinoma is one of the most common gynecologic malignancies and which is predominant in postmenopausal women. Clinically many patients are hospitalized in early stage due to clinical sign and symptom such as vaginal bleeding and in this case, patient's prognosis is known to be good. However, considerable number of patients with advanced and relapsed disease reveal poor prognosis. Therefore, exact staging work up is essential for proper treatment as is primary lesion detection. $^{18}F-FDG-PET$ has been widely used for the evaluation of gynecologic malignancies such as cervical carcinoma and ovarian cancer. In contrast, FDG PET application to endometrial carcinoma is limited until now and there is no sufficient data to validate the usefulness of FDG PET for this disease yet. However, several studies showed promising results that FDG PET is sensitive and specific in detection of recurrent or metastatic lesions. Therefore further active investigation in this field can facilitate the use of FDG PET for endometrial carcinoma.

• Journal of Korean Institute of Industrial Engineers
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• v.32 no.2
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• pp.133-140
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• 2006

Large signal type data sets are difficult to classify, especially if the data sets are non-stationary. In this paper, large signal type and non-stationary data sets are wavelet transformed so that distinct features of the data are extracted in wavelet domain rather than time domain. For the classification of the data, a few wavelet coefficients representing class properties are employed for statistical classification methods : Linear Discriminant Analysis, Quadratic Discriminant Analysis, Neural Network etc. The application of our wavelet-based feature selection method to a mass spectrometry data set for ovarian cancer diagnosis resulted in 100% classification accuracy.