• Molecules and Cells
• /
• v.26 no.4
• /
• pp.344-349
• /
• 2008

5-Fluorouracil (5-FU), a pyrimidine antagonist, has a long history in cancer treatment. The targeted pyrimidine biosynthesis pathway includes dihydropyrimidine dehydrogenase (DPD), which converts 5-FU to an inactive metabolite, and thymidylate synthase (TS), which is a major target of 5-FU. Using Caenorhabditis elegans as a model system to study the functional and resistance mechanisms of anti-cancer drugs, we examined these two genes in order to determine the extent of molecular conservation between C. elegans and humans. Overexpression of the worm DPD and TS homologs (DPYD-1 and Y110A7A.4, respectively) suppressed germ cell death following 5-FU exposure. In addition, DPYD-1 depletion by RNAi resulted in 5-FU sensitivity, while treatment with Y110A7A.4 RNAi and 5-FU resulted in similar patterns of embryonic death. Thus, the pathway of 5-FU function appears to be highly conserved between C. elegans and humans at the molecular level.

• Journal of the Korean Ceramic Society
• /
• v.51 no.6
• /
• pp.618-622
• /
• 2014

Oxide phosphorescent phosphor has an wide application in ceramic art and decoration due to its chemical and mechanical properties. Here, phosphorescent properties of strontium aluminate phosphor ($SrAl_2O_4:Eu^{2+}$, $Dy^{3+}$) emitting yellowish-green light was investigated with thermal treatment at $1250^{\circ}C$ under air and reducing atmosphere. The characterizations of thermally treated samples were analyzed using X-ray fluorescence (XRF), X-ray diffraction (XRD), scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDX), fluorescence spectrometer. $SrAl_2O_4:Eu^{2+}$, $Dy^{3+}$ still showed a good phosphorescent properties after annealing process in reducing atmosphere, while phosphorescence of $SrAl_2O_4:Eu^{2+}$, $Dy^{3+}$ annealed in air seriously degraded, due to oxidation of $Eu^{2+}$ to $Eu^{3+}$ ions. It was also observed that $SrAl_2O_4:Eu^{2+}$, $Dy^{3+}$ annealed in reducing atmosphere emitted yellowish-green light during 3 h after being exposed to sunlight.

• Journal of Electrical Engineering and Technology
• /
• v.11 no.5
• /
• pp.1337-1341
• /
• 2016

• Journal of Korean Medicine for Obesity Research
• /
• v.22 no.2
• /
• pp.125-135
• /
• 2022

Objectives: A restrospective chart review were conducted to investigate the overall weight loss effect of the integrated Korean medicine treatment on obese patients (body mass index [BMI] ≥25 kg/m²) in Korean medicine clinic and analyze the difference in the effect according to lifestyle behaviors. Methods: The medical records of 43 obese patients were retrospectively analyzed including body weight, BMI, waist circumference, hip circumference, and body composition who received integrated Korean medicine treatment for 4 weeks at 24 Korean medicine clinics in Daejeon metropolitan city. All outcome measures were evaluated again 8 weeks after the end of treatment at week 12 for follow-up. EuroQol-5D (EQ-5D), the Korean version of the obesity-related quality of life scale (KOQOL) and patient's satisfaction were also evaluated. The analysis was divided according to the treatment period and observation period, and subgroup analysis was performed according to drinking and exercise habits. Results: Body weight, body fat, waist circumference, hip circumference, body fat were significantly reduced at week 4 and week 12. Theses weight reduction effects were significantly greater within treatment period (0 to 4 week) than observation period (4 to 12 week). Especially in the non-exercise group, the changes in body fat mass and body fat percent showed a significant difference between the treatment period and the observation period. KOQOL were also significantly improved at 12 week, but not in EQ-5D. No severe adverse events were observed. Conclusions: The integrated Korean medicine treatment could be effective to treat obesity including weight loss. It is necessary to prevent additional weight regain through regular exercise even after Korean medicine treatment.

• Journal of Korean Medicine Rehabilitation
• /
• v.24 no.1
• /
• pp.125-131
• /
• 2014

We researched two patients with ear fullness after traffic accident. We diagnosed the patients' symptom as referred pain caused by clavicle branch of sternocleidomastoid (SCM) muscle. So, acupunture therapy and SCENAR therapy were used to treat the patients. We measured their discomfort by visual anlog scale (VAS) before and after treatment. As a result, the patients improved remarkably and VAS score was declined sharply when we applied acupuncture therapy and SCENAR therapy on clavicle branch of SCM. Therefore, we are certain that ear fullness can be caused by clavicle branch of SCM after traffic accident. It shows dramatical and satisfactory progress by acupuncture therapy and SCENAR therapy to relax shortening of clavicle branch of SCM.

• The Journal of Korean Medicine
• /
• v.20 no.4
• /
• pp.106-114
• /
• 2000

The herpes zoster infecting ophthalmic branch of trigeminal Nerve that is similar to migraine at first stage symptom has been treated with oriental medication at Dept. of Internal Medicine, Semyung University Oriental Hospital. The fIrst symptom of roster is burning pain, tingling or extreme sensitivity in one area of the skin, usually limited to one side of the body. This may be present for one to three days before a red rash appears at that site. There may also be a fever or headache. The rash soon turns into groups of blisters. The blisters start out clear but then pus or dark blood collects in the blisters before they crust over (scab) and begin to disappear. The pain may last longer. In this case, the severe pain was present for five days, the blisters and scabsdisappeared entirely on the seventeenth day, but postherpetic neuralgia, the most common complication and is observed most frequently in the ophthalmic branch of trigeminal nerve, was not prevented entirely. We have observed this case and report to help treatment on this disease at oriental medicine clinic.

• Journal of the Korean Institute of Telematics and Electronics
• /
• v.10 no.5
• /
• pp.39-44
• /
• 1973

In general, solution of electric networks requires both node and loop analysis, in which node pair voltages and loop currents are treated as network variables, but the conjugate quantities of these variables (the branch currents and node pair voltages respectively) are to be obtained through additional solving operation. In case of networks with magnetic coupling, however, the coupling keeps the conjugate variables mutually dependent and its final solution requires further calculation. In this paper is analyzed the method of obtaining the conjugate quantities through treatment of the problrm in a subspace with dimensions of number of magnetically coupled branches.

• Genomics & Informatics
• /
• v.11 no.2
• /
• pp.68-75
• /
• 2013

Anaplastic thyroid cancer (ATC) belongs to the most malignant and rapidly progressive human thyroid cancers and its prognosis is very poor. Also, it shows high resistance to cancer treatments, so that effective treatment for ATC has not been found to date, and virtually all patients terminate their life rapidly after diagnosis. Although targeted treatment of genetic alterations has emerged as an extremely promising approach to human cancers, such as BRAF in metastatic melanoma, it remains unclear that how commonly genomic alterations are influenced in ATC tumorigenesis. In recent years, genome wide approaches have been exploited to find genetic alterations associated with complex diseases, including cancer. Here, we reviewed the comprehensive genetic alterations in ATC and recent approaches in the context of identifying genomic alterations associated with ATC. Since surprisingly few reports have been published on the genome wide study of ATC, this review puts emphasis on the urgent needs of genomic research for the prevention and treatment of ATC.

• Journal of Korean Society of Forest Science
• /
• v.99 no.5
• /
• pp.744-749
• /
• 2010

Enzymatic hydrolysate from non pre-treated biomass of yellow poplar (Liriodendron tulipifera) was prepared and used as resource for bioethanol production. Fresh branch (1 year old) of yellow poplar biomass was found to be a good resource for achieving high saccharification yields and bioethanol production. Chemical composition of yellow poplar varied significantly depending upon age of tree. Cellulose content in fresh branch and log (12 years old) of yellow poplar was 44.7 and 46.7% respectively. Enzymatic hydrolysis of raw biomass was carried out with commercial enzymes. Fresh branch of yellow poplar hydrolyzed more easily than log of yellow poplar tree. After 72 h of enzyme treatment the glucose concentration from Fresh branch of yellow poplar was 1.46 g/L and for the same treatment period log of yellow poplar produced 1.23 g/L of glucose. Saccharomyces cerevisiae KCTC 7296 fermented the enzyme hydrolysate to ethanol, however ethanol production was similar (~1.4 g/L) from both fresh branch and log yellow poplar hydrolysates after 96 h.

• Journal of Korean Neurosurgical Society
• /
• v.56 no.4
• /
• pp.338-343
• /
• 2014

Objective : The aim of this study is to evaluate the clinical results of endoscopic radiofrequency ablation of medial branch in patients with chronic low back pain originating from facet joints. Methods : Between October 2010 and December 2013, 52 consecutive patients had suffering from chronic low back pain had undergone endoscopic radiofrequency denervation of medial branch of dorsal ramus. The clinical outcomes of these 52 patients were reviewed retrospectively. Preoperative and postoperative Visual Analogue Scale (VAS) and Korean version of Oswestry Disability Index (K-ODI), and patients' satisfaction with the procedure were assessed. Results : The pain scores on the VAS for back pain had improved significantly from a preoperative mean of 7.1 to a postoperative mean of 2 at the last follow-up (p<0.001). The clinical outcomes based on the K-ODI had also improved significantly from a preoperative mean of 26.5% to postoperative mean of 7.7% at the last follow-up (p<0.001). 80% of patients were satisfied with the procedure. There were no complications associated with the procedure. Conclusion : Our preliminary results demonstrate that endoscopic radiofrequency denervation of medial branch could be an effective alternative treatment modality for chronic back pain originating from facet joints that provides long-term pain relief.