1.Effects of a Positive Psychotherapy Program on Depression, Self-esteem, and Hope in Patients with Major Depressive Disorders.
Journal of Korean Academy of Psychiatric and Mental Health Nursing 2015;24(4):246-256
PURPOSE: This study was done to verify effects of a positive psychotherapy program on depression, self-esteem, and hope in patients with major depressive disorders. METHODS: A nonequivalent control group pre-post design was used. Participants were 53 people (control group=27 and experimental group=26) who were diagnosed with a major depressive disorder and received psychiatric outpatient treatment. The data were collected from July 1 to December 30, 2013. The experimental group received the positive psychotherapy program 8 times over 8 weeks. Data analysis was conducted using chi2-test, Fisher's exact test and t-test. RESULTS: As the result of the intervention, depression (p<.001), self-esteem (p<.001) and hope (p<.001) improved significantly in the experimental group compared to the control group. CONCLUSION: The results suggest that the positive psychotherapy program can be widely utilized as one of the nursing intervention programs for depressive patients.
Depression*
;
Depressive Disorder, Major*
;
Hope*
;
Humans
;
Nursing
;
Outpatients
;
Psychotherapy*
;
Statistics as Topic
2.A case of fetal meconium peritonitis by antenatal ultrasonography.
Seon Yong KO ; Chang Hoon AHN ; Kae Hyun NAM ; Im Soon LEE ; Kwon Hae LEE ; Tai Ho CHO
Korean Journal of Obstetrics and Gynecology 1992;35(2):281-285
No abstract available.
Meconium*
;
Peritonitis*
;
Ultrasonography*
3.Plasma cell leukemia.
Yong Ho KO ; Seon Ja PARK ; Byung Joon LEE ; Jae Who PARK ; Si Rhae LEE ; Sook Ja PARK
Korean Journal of Hematology 1991;26(2):397-403
No abstract available.
Leukemia, Plasma Cell*
;
Plasma Cells*
;
Plasma*
4.Antineuroinflammatory Effects of 7,3’,4’-Trihydroxyisoflavone in Lipopolysaccharide-Stimulated BV2 Microglial Cells through MAPK and NF-κB Signaling Suppression
Seon-Kyung KIM ; Yong-Hyun KO ; Youyoung LEE ; Seok-Yong LEE ; Choon-Gon JANG
Biomolecules & Therapeutics 2021;29(2):127-134
Neuroinflammation—a common pathological feature of neurodegenerative disorders such as Alzheimer’s disease—is mediated by microglial activation. Thus, inhibiting microglial activation is vital for treating various neurological disorders. 7,3’,4’-Trihydroxyisoflavone (THIF)—a secondary metabolite of the soybean compound daidzein—possesses antioxidant and anticancer properties. However, the effects of 7,3’,4’-THIF on microglial activation have not been explored. In this study, antineuroinflammatory effects of 7,3’,4’-THIF in lipopolysaccharide (LPS)-stimulated BV2 microglial cells were examined. 7,3’,4’-THIF significantly suppressed the production of the proinflammatory mediators nitric oxide (NO), inducible nitric oxide synthase (iNOS), and cyclooxygenase-2 (COX-2) as well as of the proinflammatory cytokine interleukin-6 (IL-6) in LPS-stimulated BV2 microglial cells. Moreover, 7,3’,4’-THIF markedly inhibited reactive oxygen species (ROS) generation. Western blotting revealed that 7,3’,4’-THIF diminished LPS-induced phosphorylation of extracellular signal-regulated kinase (ERK), c-Jun N-terminal kinase (JNK), glycogen synthase kinase-3β (GSK-3β), and nuclear factor kappa B (NF-κB). Overall, 7,3’,4’-THIF exerts antineuroinflammatory effects against LPSinduced microglial activation by suppressing mitogen-activated protein kinase (MAPK) and NF-κB signaling, ultimately reducing proinflammatory responses. Therefore, these antineuroinflammatory effects of 7,3’,4’-THIF suggest its potential as a therapeutic agent for neurodegenerative disorders.
5.Molecular Analysis of Malassezia Microflora on the Skin of the Patients with Atopic Dermatitis.
Seon Mi YIM ; Ji Young KIM ; Jong Hyun KO ; Yang Won LEE ; Yong Beom CHOE ; Kyu Joong AHN
Annals of Dermatology 2010;22(1):41-47
BACKGROUND: The yeasts of the genus Malassezia are members of the normal flora on human skin and they are found in 75~80% of healthy adults. Since its association with various skin disorders have been known, there have been a growing number of reports that have implicated Malassezia yeast in atopic dermatitis (AD). OBJECTIVE: The aim of the present study is to isolate the various Malassezia species from AD patients by using 26S rDNA (ribosomal Deoxyribonucleic acid) PCR-RFLP and to investigate the relationship between a positive Malassezia culture and the severity of AD. METHODS: Cultures for Malassezia yeasts were taken from the scalp, cheek, chest, arm and thigh of 60 patients with atopic dermatitis. We used a rapid and accurate molecular biological method 26S rDNA PCR-RFLP, and this method can overcome the limits of the morphological and biochemical methods. RESULTS: Positive Malassezia growth was noted on 51.7% of the patients with atopic dermatitis by 26S rDNA PCR-RFLP analysis. The overall dominant species was M. sympodialis (16.3%). M. restricta was the most common species on the scalp (30.0%) and cheek (16.7%). M. sympodialis (28.3%) was the most common species on the chest. The positive culture rate was the highest for the 11~20 age group (59.0%) and the scalp showed the highest rate at 66.7%. There was no significant relationship between the Malassezia species and SCORing for Atopic Dermatitis (SCORAD). CONCLUSION: The fact that the cultured species was different for the atopic dermatitis lesion skin from that of the normal skin may be due to the disrupted skin barrier function and sensitization of the organism induced by scratching in the AD lesion-skin. But there was no relationship between the Malassezia type and the severity score. The severity score is thought to depend not on the type, but also on the quantity of the yeast.
Adult
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Arm
;
Cheek
;
Dermatitis, Atopic
;
DNA, Ribosomal
;
Humans
;
Malassezia
;
Scalp
;
Skin
;
Thigh
;
Thorax
;
Yeasts
6.Effect of Whole Body Vibration on Trabecular Bone in OVX Rats.
Chang Yong KO ; Tae Woo LEE ; Dae Gon WOO ; Hyo Seon KIM ; Dohyung LIM ; Han Sung KIM ; Beob Yi LEE
Korean Journal of Physical Anthropology 2007;20(4):301-309
Previous studies showed that whole body vibration could prevent bone resorption and stimulate new bone formation. The aim of this study is to detect and track effect of whole body vibration for osteoporotic bone of OVX rats. 12 Female rats were used and allocated into 5 group, CON, SHAM, WBV 17, WBV 30 and WBV 45. Rats except SHAM group were ovariectomised to induce osteoporosis. Rats in WBV groups were stimulated whole body vibration at magnitude of 1 mm(peak-peak) and frequency 17 Hz, 30 Hz and 45 Hz, repectively, for 8 weeks (20 min, 5 days/week). The 4th lumbar in rats were scanned at a resolution of 35 micrometer at baseline, before stimulation, and 8 weeks by In-vivo Micro-CT. To detect and track changes of morphological characteristics in lumbar trabecuar bone of rats, structural parameters were measured and calculated from acquiring images. In the results, changes of structural characteristics of WBV group were smaller than those of CON group. Loss of quantity of trabecular bone in WBV 45 was the least. In contrast, that in WBV 17 was the biggest. These results showed that reasonable whole body vibration beneficially affected osteoporotic bones. In addition to, whole body vibration was likely to be substituted partly for drug treatment.
Animals
;
Bone Resorption
;
Female
;
Humans
;
Osteogenesis
;
Osteoporosis
;
Rats*
;
Vibration*
7.A Case Report of Cecal Diverticulitis diagnosed by Colonofiberscopy.
Hye Sin YU ; Jin Hong YOO ; Ki Don HAN ; Young Seon HONG ; Gang Kgu KO ; Kyu Yong CHOI ; Sang Bok CHA ; Hee Sik SUN
Korean Journal of Gastrointestinal Endoscopy 1987;7(1):75-78
Diverticular disease of the colon is frequently involved in Western countries, which in korea, it is regarding as rare disease. In Western the diverticulosis is mainly affected on left side and increasing in according to age and false type is more frequent than ture type. While in oriental countries, the diverticulosis of the colon is mainly affected on right side and it is more frequent in younger patients. Cecal diverticulitis is known to a very rare disease and very difficult to be differenciated from acute scopy has purnished another useful tool in the differential diagnosis of diverticular disease. We experienced a case of cecal diverticultitis which had been diagnosed by colonofiberscopy and reviewed literatures briefly.
Colon
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Diagnosis, Differential
;
Diverticulitis*
;
Diverticulum
;
Humans
;
Korea
;
Rare Diseases
8.Morphology and Adhesion Complex of Cultured Epithelium, on Amniotic Membrane in Vitro and in Vivo.
Yong Gen XU ; Si Hwan CHOI ; Seon Mi KO ; Yang Won LEE ; Moo Byung CHA
Journal of the Korean Ophthalmological Society 2006;47(1):160-170
PURPOSE: The morphologic characteristics and adhesion complex formation of cultured limbal epithelium of rabbit on amniotic membrane, in vitro and in vivo. METHODS: Rabbit limbal explants were cultured in vitro on amniotic membrane for 4 weeks. In the in vivo culture, the rabbit corneal epithelium was removed. Next, a tunnel was created at the limbus and, the edge of amniotic membrane was secured in the tunnel and cultured for 4 weeks. The proliferation of epithelium on the amniotic membrane was observed for 4 weeks at 1 week intervals. RESULTS: AE-5 immunohistochemical staining was positive and PAS staining was negative for cultured rabbit limbal epithelium, in vitro and in vivo. Hematoxylin and Eosin staining showed the morphologic characteristics of normal rabbit corneal epithelium in both groups. Transmission electron microscopy performed at an interval of 1 week showed adhesion complex by 3 weeks of in vitro culture, and no significant change was seen until week 4. The formation of the adhesion complex was shown starting at week 1 of in vivo culture and increased until week 4. CONCLUSIONS: The morphology of corneal limbal epithelium of rabbits cultured on amniotic membrane in vitro and in vivo, did not differ significantly compared with normal rabbit epithelium. In vivo culture resulted in more a normal-looking adhesion complex compared with the in vitro culture.
Amnion*
;
Eosine Yellowish-(YS)
;
Epithelium*
;
Epithelium, Corneal
;
Hematoxylin
;
Microscopy, Electron, Transmission
;
Rabbits
9.Purification and refolding of the recombinant subunit B protein of the Aggregatibacter actinomycetemcomitans cytolethal distending toxin.
Yong Seon JEON ; Sung Chan SEO ; Jin Hee KWON ; Sun Young KO ; Hyung Seop KIM
The Journal of the Korean Academy of Periodontology 2008;38(Suppl):343-354
PURPOSE: Aggregatibacter actinomycetemcomitans is associated with localized aggressive periodontitis. It produces cytolethal distending toxin (CDT), which induces cell cycle arrest in the G2/M phase. The CDT holotoxin is composed of CdtA, CdtB, and CdtC. CdtB has structural homology to human DNase I and is an active component of the CDT complex acting as a DNase. In particular, the pattern homology seen in the CdtB subunit has been associated with specific DNase I residues involved in enzyme catalysis, DNA binding, and metal ion binding. So, to study the functions and regulation of recombinant CdtB, we made up a quantity of functional recombinant CdtB and tested it in relation to the metal ion effect. MATERIALS AND METHODS: We constructed the pET28a-cdtB plasmid from A. actinomycetemcomitans Y4 by genomic DNA PCR and expressed it in the BL21 (DE3) Escherichia coli system. We obtained the functional recombinant CdtB by the refolding system using the dialysis method and then analyzed the DNase activity and investigated the metal ion effect from plasmid digestion. RESULTS: The recombinant CdtB subunit was expressed as the inclusion bodies. We were able to obtain functional recombinant CdtB subunit using refolding system. We confirmed that our refolded recombinant CdtB had DNase activity and was influenced by the metal ions Mg2+ and Ca2+. CONCLUSION: We suggest that the factors influencing recombinant CdtB may contribute to CDT associated diseases, such as periodontitis, endocarditic, meningitis, and osteomyelitis.
Aggressive Periodontitis
;
Bacterial Toxins
;
Catalysis
;
Cell Cycle Checkpoints
;
Deoxyribonuclease I
;
Deoxyribonucleases
;
Dialysis
;
DNA
;
Edetic Acid
;
Escherichia coli
;
Humans
;
Inclusion Bodies
;
Ions
;
Meningitis
;
Osteomyelitis
;
Periodontitis
;
Plasmids
;
Polymerase Chain Reaction
10.Effect of Endotoxin on Insulin-like Growth Factor-1 Expression in Small Intestine and Intrauterine Growth of Rabbit Fetus.
Seon Yong KO ; Jeong Jae LEE ; Hae Hyeog LEE ; Kwon Hae LEE
Korean Journal of Obstetrics and Gynecology 2002;45(4):610-616
OBJECTIVE: New Zealand White Rabbits were utilized to determine whether fetal insulin-like growth factor-1 (IGF-1) expression in small intestine is altered in response to maternal enodotoxin administration. STUDY DESIGN: Six pregnant rabbits were intramuscularly injected with lipopolysaccharide of E. coli (serotype 055:B5) 30 microgram/kg, whereas normal saline 0.3 mL/kg were injected to the other six pregnant rabbits on gestational day 25 and 26. Fetuses were harvested on gestational day 27 and were identified as favored (Fav) or runt (Runt) depending on the location in the uterus. Fetal weight and small intestinal length were recorded. Three parts of small intestine (proximal, middle and distal) were collected. Reverse transcription polymerase chain reaction (RT-PCR) was used to measure IGF-1/beta-actin mRNA densitometric band ratios. Statistical analysis was performed using paired Student's t-test and Pearson correlation test. RESULTS: The ratio of mRNA IGF-1/beta-actin was lower in endotoxin group (0.80+/-0.24, n=24) than control group (1.13+/-0.31, n=24, P<0.05). Fetal weights were decreased with endotoxin group (24.7+/-8.59 gm) compared to control group (28.5+/-4.35 gm, p<0.05). Fav fetuses (1.09+/-0.42, n=12) showed increased expression of IGF-1 mRNA in the small intestine than Runt fetuses (0.84+/-0.35, n=12) in control group. In endotoxin group, there was no statistically significant difference in expression of IGF-1 mRNA between Fav (0.82+/-0.31, n=12) and Runt (0.79+/-0.43, n=12) group. Lengths of small intestine showed no statistically significant difference between control and endotoxin group, and Fav and Runt (p>0.05). CONCLUSION: In our study, maternal endotoxin administration suppressed IGF-1 production in small intestine of fetal rabbit. Endotoxin in maternal serum might be transferred to fetus through placenta and decreased production of mRNA of IGF-1 in small intestine. Further studies are warranted to investigate the correlation between intrauterine growth retardation and maternal gram negative bacterial infection.
Bacterial Infections
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Fetal Growth Retardation
;
Fetal Weight
;
Fetus*
;
Insulin-Like Growth Factor I
;
Intestine, Small*
;
Placenta
;
Polymerase Chain Reaction
;
Rabbits
;
Reverse Transcription
;
RNA, Messenger
;
Uterus