1.Artificial Cultivation Characteristics and Bioactive Effects of Novel Tropicoporus linteus (Syn. Phellinus linteus) Strains HN00K9 and HN6036in Korea
Mycobiology 2021;49(2):161-172
Phellinus strains were collected from different areas in Korea. Of them, the fast mycelial growing strains were artificially cultivated on the oak logs to produce fruiting body. The varieties, Phellinus linteus ASI26099 (Korea Sanghwang) and P. baumii PBJS (Jangsoo Sanghwang) were grown under the same conditions as controls. Their cultivating characteristics including mycelial colonization, pinhead formation, and fruiting body formation rate were investigated on the logs. Basidiocarps of Phellinus strains HN00K9, HN6036, and ASI26099 were concentrically zonate and shallowly sulcate, and dark chestnut showing typical characteristics of Tropicoporus linteus (synonyum: P. linteus, Inonotus linteus, polyporus linteus), which is distinguishably different to PBJS. HN00K9 showed the highest yield of fruiting body among the mushroom strains. The β-glucan content in fruiting bodies of HN00K9 was 20% higher than those of other strains. Bioactive effects of polysaccharide samples from fruiting bodies of Phellinus strains, HN00K9, HN6036, ASI26099, and PBJS were assessed on cell viability and cytokine (IL-6 and TNF-α) inhibition and finally on anticancer to different human cancer cells.
2.Artificial Cultivation Characteristics and Bioactive Effects of Novel Tropicoporus linteus (Syn. Phellinus linteus) Strains HN00K9 and HN6036in Korea
Mycobiology 2021;49(2):161-172
Phellinus strains were collected from different areas in Korea. Of them, the fast mycelial growing strains were artificially cultivated on the oak logs to produce fruiting body. The varieties, Phellinus linteus ASI26099 (Korea Sanghwang) and P. baumii PBJS (Jangsoo Sanghwang) were grown under the same conditions as controls. Their cultivating characteristics including mycelial colonization, pinhead formation, and fruiting body formation rate were investigated on the logs. Basidiocarps of Phellinus strains HN00K9, HN6036, and ASI26099 were concentrically zonate and shallowly sulcate, and dark chestnut showing typical characteristics of Tropicoporus linteus (synonyum: P. linteus, Inonotus linteus, polyporus linteus), which is distinguishably different to PBJS. HN00K9 showed the highest yield of fruiting body among the mushroom strains. The β-glucan content in fruiting bodies of HN00K9 was 20% higher than those of other strains. Bioactive effects of polysaccharide samples from fruiting bodies of Phellinus strains, HN00K9, HN6036, ASI26099, and PBJS were assessed on cell viability and cytokine (IL-6 and TNF-α) inhibition and finally on anticancer to different human cancer cells.
3.Two Cases of Adult Intussusception.
Gyeong Rae CHAE ; Heui Doo CHEON ; Hyong Jin TAE ; Cheol Seung KIM ; Kwang Min LEE ; Myong Jin JU
Journal of the Korean Society of Coloproctology 2001;17(2):103-107
Intussusception can develop at any age but about 95% of patients are children under 2 years-old. Adult intussusception is a rare condition. Unlike children, nearly all adults with intussusception have a lead point such as benign or malignant small bowel tumors, intestinal tuberculosis, or Meckel's diverticulum. First case is a 48-year-old male who was admitted with 2 days of diffuse abdominal cramping pain and no other associated gastrointestinal symptoms. Barium enema revealed ileocolic intussusception with a round cecal mass after barium reduction. An ileocecectomy was performed electively. The pathologic report was cecal cyst, which was an intraluminal structure with an epithelial lining of colonic mucosa. The second case, a 53-year-old male, was admitted with 1 week of diffuse abdominal cramping pain and watery diarrhea. Barium enema revealed ileocecal intussusception. Emergency surgery (ileocecectomy), revealed a polypoid small bowel mass. The pathologic report was lipoma. Recently, we experienced two cases of adult intussusception and report these cases with a brief review of the literature.
Adult*
;
Barium
;
Child
;
Child, Preschool
;
Colic
;
Colon
;
Diarrhea
;
Emergencies
;
Enema
;
Humans
;
Intussusception*
;
Lipoma
;
Male
;
Meckel Diverticulum
;
Middle Aged
;
Mucous Membrane
;
Tuberculosis
4.Central Neurocytoma Originated from Atrium with Malignant Trans formation: A Case Report.
Gyeong Ip KWON ; Young Duk JOH ; Seong Min KIM ; Jin Do HUH ; Hee Kyong JANG
Journal of the Korean Radiological Society 2000;42(2):227-230
Central neurocytoma, a cerebral intraventricular tumor, is usually benign. It frequently develops in the area of the foramen of Monro, and is usually attached to the septum pellucidum. Mild to moderate contrast enhancement is common. We encountered a case of central neurocytoma in a 60-year-old woman; the tumor arose from the atrium of the lateral ventricle, and extraventricular extension and malignant transformation were apparent. CT and MRI revealed a well-defined, slightly heterogeneous mass measuring 2.5x3x5cm with surrounding edema. There was strong contrast enhancement of the mass.
Cerebral Ventricles
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Edema
;
Female
;
Humans
;
Lateral Ventricles
;
Magnetic Resonance Imaging
;
Middle Aged
;
Neurocytoma*
;
Septum Pellucidum
5.Treatment of dental erosion caused by intrinsic and extrinsic etiology: a case report.
Gyeong Je LEE ; Soo Yoon JIN ; Hee Jung KIM ; Jeong Bum MIN
Journal of Dental Rehabilitation and Applied Science 2017;33(1):42-46
Dental erosion is defined as tooth structure loss by acidic chemical substance. It is caused by extrinsic factors such as acidic foods, drugs, and working environments, and also intrinsic factors such as gastric acid regurgitation in gastro-esophageal disorder or intensive vomiting in bulimia nervosa. These lesions can be treated with direct resin filling, laminate or full contour crown depending on the intensity of clinical problem. This is a case report about treatment of rare clinical case: labial erosion of anterior tooth caused by frequent intake of acidic fruit and palatal erosion of anterior tooth caused by intensive vomiting in bulimia nervosa.
Bulimia Nervosa
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Crowns
;
Fruit
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Gastric Acid
;
Intrinsic Factor
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Tooth
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Vomiting
6.Microvessel Count and Overexpression of p53 in Early Colorectal Cancer.
Young Min KIM ; Gyeong Hoon KANG ; Suk Kyun YANG ; Chang Sik YU ; Jin Cheon KIM
Journal of the Korean Cancer Association 1998;30(1):80-88
PURPOSE: Angiogenesis, playing a critical role in tumor growth, development, and metastatic process, is alleged to be related to the prognostic factors and patient's survival of the colo-rectal cancer. The p53 gene, present in short arm of chromosome 17, is involved in multistep colo-rectal carcinogenesis. The correlation of p53 gene and angiogenesis has been recently reported. So, we designed to assess (1) the rate of p53 overexpression, (2) the prognostic significance of microvessel count, and (3) the relationship of p53 overexpression and angiogenesis in early colo-rectal cancer(ECC) patients. MATERIAL AND METHODS: The study material included 68 ECC from 65 patients, 40 mucosal (m-ECC) and 28 submucosal ECCs (sm-ECC). Immunostainings against p53 and factor VIII-related antigen were done and the results were analyzed with respect to tumor depth, site, and differentiation. And also the correlation between p53 overexpression and microvessel counts(MVC) was performed. RESULT: The rate of p53 overexpression was higher in sm-ECC than in m-ECC (p < 0.05). The rate of p53 overexpression was highest in sigmoid colon and statistically significantly different compared with other sites. The differentiation of the tumor was closely correlated with p53 overexpression and the poorer the differentiation, the more overexpression of p53 (p<0.05). There was no significant difference between MVCs of m-ECC and sm-ECC (27.2+/-5.5 and 29.8 +/-6.0,respectively). However, MVC were higher in sigmoid colon than in any other sites (p<0.05). MVC did not show significant correlation with tumor differentiation or p53 overexpression. CONCLUSION: These data indicate that p53 overexpression is correlated with tumor depth and differentiation but not MVC. The significance of higher MVC and p53 overexpression in sigmoid colon are reserved for further studies.
Arm
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Carcinogenesis
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Chromosomes, Human, Pair 17
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Colon, Sigmoid
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Colorectal Neoplasms*
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Genes, p53
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Humans
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Microvessels*
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von Willebrand Factor
7.Status and Need Assessment on Nutrition & Dietary Life Education among Nutrition Teachers in Elementary, Middle and High Schools.
Na Gyeong OH ; Su Jin GWON ; Kyung Won KIM ; Cheong Min SOHN ; Hae Ryun PARK ; Jung Sook SEO
Korean Journal of Community Nutrition 2016;21(2):152-164
OBJECTIVES: This study was conducted to investigate the status and need for nutrition and dietary life education among nutrition teachers at schools. These characteristics were analyzed if they were different between elementary schools and middle-high schools. METHODS: Subjects were 151 nutrition teachers from 70 elementary schools, 41 middle schools and 40 high schools in 17 cities nationwide selected by two-stage stratified cluster sampling process. Survey questionnaires included the items on general characteristics, status and need assessment for nutrition and dietary life education. Chi-square test or t-test was used for data analysis by school groups. RESULTS: Nutrition education was implemented at 65.7% of elementary schools and 51.9% of middle-high schools. Nutrition education was mainly performed in 'discretionary activities·extracurricular activities' at elementary school and through 'newsletters, school homepage, foodservice bulletin board' at middle-high school (p<0.001). The most needed topic for nutrition education in nutrition teachers was 'healthy dietary habits and table manners' and this was not significantly different by school groups. Responses on adequate frequency (p<0.01), methods used for nutrition education (p<001), materials for nutrition education (p<0.001), information sources for nutrition education (p<0.001) were significantly different by school groups. Major tasks for activating nutrition education included 'securing the time for implementing nutrition education by reducing work loads' and 'developing standardized nutrition education materials' in schools. CONCLUSIONS: Nutrition education at schools might be activated by improving working conditions of nutrition teachers and developing the practical programs that reflect the needs of nutrition teachers.
Adolescent
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Child
;
Education*
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Food Habits
;
Humans
;
Needs Assessment
;
Statistics as Topic
8.Effect of 17beta-estradiol on the Contraction to Endothelin-1 in Porcine Coronary Artery.
Ho Gyeong JEONG ; Byeong Sun KANG ; Min Gu KIM ; Byeong Gun PARK ; Jin Yong HWANG ; Bong Gwan SEO
Korean Journal of Medicine 1997;52(2):224-232
OBJECTIVES: It is widely accepted that estrogen has favorable effects on cardiovascular diseases, especially in the postmenopausal women. Endothelin-1(ET-I), released from the vascular endothelium, is a 21-amino acid peptide with strong vasoconstrictor activity. However, the effect of estrogen on the vasoconstriction to ET-1 has not been extensively studied. METHODS: To investigate the effect of estrogen (175beta-estradiol) on the vascular contraction to ET-1, porcine coronary artery(PCA) rings were suspended in organ chambers(37 degrees C, 95% O2/5% CO2) for measurement of isometric tension change. Endothelium was removed mechanically if necessary. In acute experiments, vascular rings were preincubated for 15minutes with 3different concentrations of 170beta-estradiol(10(-6), 10(-5), 10(-4)M) and concentration-contraction curves to cumulative doses of ET-1 were constructed. In the experiments after a longer exposure to 17beta-estradiol, the vessels with endothelium were exposed in the 5% CO2 incubator to 3different concentrations of 17beta-estradiol(10(-9), 10(-8), 10(-7)M) for 44-50 hours, and then concentrationcontraction curves to ET-1 were obtained. RESULTS: Incubation for 15minutes with 170beta-estradiol(10(-4)M) inhibited ET-1-induced contraction in the vessels with endothelium(area under the curve and maximal contraction, p<0.05 compared with control). This effect persisted regardless of the sex and the presence or absence of the endotheliurn. Incubation of the vessels far a longer time with 170beta-estradiol(44-50 hours) resulted in the inhibition of maximal contraction to ET-1(p<0.05) by a lower concentration of 175beta-estradiol(10(-7)M) than in acute experiments in male PCA rings, but an enhanced contraction to ET-1(area under the curve; p<0.05) by 10M of 175beta-estradiol was observed in female PCA rings. CONCLUSION: Short-time incubation with 17Pbeta-estradiol has an inhibitory effect on the contraction to ET-1 in PCA rings. This effect is independent of the presence of the endothelium and the sex of the pigs. A longer incubation with 17beta-estradiol results in a similar inhibitory effect on male(but not female) PCA rings, suggesting that a sex-related difference may exist concerning the effect of 17beta-estradiol on ET-1-induced contraction.
Cardiovascular Diseases
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Coronary Vessels*
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Endothelin-1*
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Endothelins
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Endothelium
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Endothelium, Vascular
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Estrogens
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Female
;
Humans
;
Incubators
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Male
;
Passive Cutaneous Anaphylaxis
;
Swine
;
Vasoconstriction
9.Comparison of Psychological Characteristics of Lesch Types 2 (Anxiety Model) and 3 (Depressive Model) Alcoholism
Sae Heon JANG ; Min Ho CHANG ; Young Myo JAE ; Jin Hyuk CHOI ; Gyeong Hwan LEE
Mood and Emotion 2019;17(2):49-56
BACKGROUND: Lesch types 2 (L2, anxiety model) and 3 (L3, depressive model) of alcoholism exhibit different responses to anti-craving agents, and most treatment guidelines provide differential treatment strategies for bipolar depression (DEP) and unipolar DEP. We compare the psychological characteristics of L2 and L3 alcoholism and between the unipolar and bipolar subgroups.METHODS: We reviewed medical records of patients who were diagnosed with alcohol use disorder using the DSM-5 diagnostic criteria and classified as L2 and L3 using Lesch Alcohol typology software. All patients completed self-report scales (Alcohol Use Disorders Identification Test [AUDIT], Beck Anxiety Inventory [BAI], Beck Depression Inventory-II [BDI-II], and Korean Symptom Checklist-95 [KSCL95]). The data were analyzed using descriptive statistics, the Wilcoxon Rank-Sum test, and ANOVA.RESULTS: Of the 43 patients, 23 were assigned L2, and 20 were assigned L3. The scores for the KSCL95 subscales fell generally in the increasing order of the L2-unipolar (L2U, n=10), L2-bipolar (L2B, n=13), L3-unipolar (L3U, n=11), and L3-bipolar (L3B, n=9) types. The L3B scores were greater than the L3U scores for most KSCL95 subscales, by contrast with the DEP and BAI scores.CONCLUSION: We found psychological differences between L2 and L3 and identified the unique psychological characteristics for each subgroup by polarity. The psychological characteristics of these subgroups of alcohol use disorder may help improve the treatment success rates through individualized treatment strategies.
Alcoholism
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Anxiety
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Bipolar Disorder
;
Depression
;
Depressive Disorder
;
Humans
;
Medical Records
;
Weights and Measures
10.Current Trends for Treating Lateral Epicondylitis
Gyeong Min KIM ; Seung Jin YOO ; Sungwook CHOI ; Yong Geun PARK
Clinics in Shoulder and Elbow 2019;22(4):227-234
Lateral epicondylitis, also known as ‘tennis elbow’, is a degenerative rather than inflammatory tendinopathy, causing chronic recalcitrant pain in elbow joints. Although most patients with lateral epicondylitis resolve spontaneously or with standard conservative management, few refractory lateral epicondylitis are candidates for alternative non-operative and operative modalities. Other than standard conservative treatments including rest, analgesics, non-steroidal anti-inflammatory medications, orthosis and physical therapies, nonoperative treatments encompass interventional therapies include different types of injections, such as corticosteroid, lidocaine, autologous blood, platelet-rich plasma, and botulinum toxin, which are available for both short-term and long-term outcomes in pain resolution and functional improvement. In addition, newly emerging biologic enhancement products such as bone marrow aspirate concentrate and autologous tenocyte injectates are also under clinical use and investigations. Despite all non-operative therapeutic trials, persistent debilitating pain in patients with lateral epicondylitis for more than 6 months are candidates for surgical treatment, which include open, percutaneous, and arthroscopic approaches. This review addresses the current updates on emerging non-operative injection therapies as well as arthroscopic intervention in lateral epicondylitis.