1.Therapeutic Effect of HDAC5 Binding and Cell Penetrating Peptide for the Treatment of Inflammatory Bowel Disease
Deogil KIM ; Dong Woo LEE ; Gookjin YOON ; Eui Kyun JEONG ; Moon Sil CHOI ; Hoo Cheol LEE ; Yoon Shin PARK ; Chong Pyung CHUNG ; Jue-Yeon LEE ; Yoon Jeong PARK
Tissue Engineering and Regenerative Medicine 2023;20(6):965-979
BACKGROUND:
Inflammatory bowel disease (IBD) is an incurable disease that negatively influences the quality of life of patients. Current and emerging therapies target proinflammatory cytokines and/or receptors to downregulate proinflammatory responses, but insufficient remission requires other therapeutic agents. Herein, we report that the synthetic antiinflammatory peptide 15 (SAP15) is capable of cell penetration and anti-inflammatory activity in human macrophages.
METHODS:
SAP15 was labeled with fluorescence and administered to human leukemia monocytic cells (THP-1) cells for cell penetration analysis. Using biolayer interferometry analysis, the binding affinity of SAP15 with histone deacetylase 5 (HDAC5) was measured. SAP15-treated THP-1 cells were analyzed by protein phosphorylation assay, flow cytometry, and enzyme-linked immunosorbent assay (ELISA). In addition, in vivo analysis of the therapeutic effect on IBD was observed in a dextran sulfate sodium (DSS)-induced model. Samples from SAP15-treated mice were analyzed at both the macroscopic and microscopic levels using ELISA, myeloperoxidase (MPO) assays, and histological evaluations.
RESULTS:
SAP15 was internalized within the cytosol and nucleus of THP-1 cells and bound to the HDAC5 protein. SAP15-treated macrophages were assessed for protein phosphorylation and showed inhibited phosphorylation of HDAC5 and other immune-related proteins, which led to increased M2-like macrophage markers and decreased M1-like macrophage markers and tumor necrosis factor-a and interleukin-6 cytokine levels. The SAP15 treatment on IBD model showed significant recovery of colon length. Further histological analysis of colon demonstrated the therapeutic effect of SAP15 on mucosal layer. Moreover, proinflammatory cytokine levels and MPO activity from the plasma show that SAP15 is effective in reduced proinflammatory responses.
CONCLUSION
These findings suggest that SAP15 is a novel peptide with a novel cell-penetrating peptide with antiinflammatory property that can be used as a therapeutic agent for IBD and other inflammatory diseases.
2.A comparative study among normal saline, water soluble gel and 2% lidocaine gel as a SLIPA lubricant.
Pyung Gul PARK ; Geun Joo CHOI ; Won Joong KIM ; So Young YANG ; Hwa Yong SHIN ; Hyun KANG ; Chong Wha BAEK ; Yong Hun JUNG ; Jin Yun KIM ; Min Su KANG
Korean Journal of Anesthesiology 2014;66(2):105-111
BACKGROUND: This study was designed to find appropriate lubricant for streamed lined liner of pharyngeal airway(TM) (SLIPA(TM)). We evaluated the incidence of sore throat, nausea, vomiting, hoarseness, paresthesia and blood stain after using saline, water soluble gel and 2% lidocaine gel as a SLIPA(TM) lublicant. METHODS: One hundred twenty three patients scheduled for minor surgery to whom the SLIPA(TM) was considered suitable were randomly allocated to one of three groups which receive normal saline, water soluble gel or 2% lidocaine gel as a SLIPA(TM) lublicant. Patients were interviewed at recovery room, post operation 6-12 hour, post operation 18-24 hour about sore throat and other complications. RESULTS: There were no statistical difference in sore throat and blood stain among three groups. Also there were no statistical differences in hoarseness, nausea, vomiting. The incidence of paresthesia in 2% lidocaine gel group was significantly higher than those of the other two groups immediately after operation, but it was resolved after leaving the recovery room. CONCLUSIONS: Our results suggest that normal saline, water soluble gel and 2% lidocaine gel are all available as a SLIPA(TM) lubricant. Size of SLIPA(TM), insertion technique and difficulty of insertion should be further investigated as the main causes of a sore throat and other complications which can occur after the insertion of SLIPA(TM).
Blood Stains
;
Hoarseness
;
Humans
;
Incidence
;
Lidocaine*
;
Nausea
;
Paresthesia
;
Pharyngitis
;
Recovery Room
;
Rivers
;
Surgical Procedures, Minor
;
Vomiting
3.Ultrasound-Assisted Mental Nerve Block and Pulsed Radiofrequency Treatment for Intractable Postherpetic Neuralgia: Three Case Studies.
Hae Gyun PARK ; Pyung Gul PARK ; Won Joong KIM ; Yong Hee PARK ; Hyun KANG ; Chong Wha BAEK ; Yong Hun JUNG ; Young Cheol WOO ; Gill Hoi KOO ; Hwa Yong SHIN
The Korean Journal of Pain 2014;27(1):81-85
Postherpetic neuralgia (PHN) is one of the most difficult pain syndromes to treat. Invasive treatments may be considered when patients fail to obtain adequate pain relief from noninvasive treatment approaches. Here, we present three cases of PHN in the mandibular branch treated with ultrasound-assisted mental nerve block and pulsed radiofrequency treatment. None of the patients had adequate pain relief from the medical therapy, so we performed the mental nerve block on the affected side under ultrasound assistance. Two patients showed satisfactory pain relief continuously over 12 months without any further interventions, whereas one patient only had short-term pain relief. For the patient had short-term pain relief we performed pulsed radiofrequency treatment (PRFT) on the left mental nerve under ultrasound assistance. After PRFT, the patient had adequate pain relief for 6 months and there was no need for further management.
Humans
;
Nerve Block*
;
Neuralgia, Postherpetic*
;
Pulsed Radiofrequency Treatment*
;
Ultrasonography
4.Seizure developed after palonosetron intravenous injection during recovery from general anesthesia: A case report.
Pyung Gul PARK ; Hwa Yong SHIN ; Hyun KANG ; Yong Hun JUNG ; Young Cheol WOO ; Jin Yun KIM ; Gill Hoi KOO ; Sun Gyoo PARK ; Chong Wha BAEK
Korean Journal of Anesthesiology 2012;63(2):173-176
Seizure associated with antiemetics is rare. We report seizure associated with a 5-HT3 receptor antagonist in a 38 years old female. The patient underwent ureterorenoscopic lithotripsy due to left upper ureter stone. After operation, the patient complained of nausea in the postanesthetic recovery unit. In order to subside symptom, the patient was administrated 5-HT3 receptor antagonist, palonosetron, 0.075 mg intravenously. Shortly after administration of that, the patient developed generalized tonic-clonic seizures. The symptom was subsided after midazolam and thiopental sodium were injected. But 40 minutes later, seizure recurred and subsided with midazolam again. The patient recovered completely without any specific sequelae.
Antiemetics
;
Female
;
Humans
;
Injections, Intravenous
;
Isoquinolines
;
Lithotripsy
;
Midazolam
;
Nausea
;
Quinuclidines
;
Receptors, Serotonin, 5-HT3
;
Seizures
;
Thiopental
;
Ureter
5.The clinical effects of a hydroxyapatite containing toothpaste for dentine hypersensitivity.
Su Hwan KIM ; Jun Beom PARK ; Chul Woo LEE ; Ki Tae KOO ; Tae Il KIM ; Yang Jo SEOL ; Yong Moo LEE ; Young KU ; Chong Pyung CHUNG ; In Chul RHYU
The Journal of the Korean Academy of Periodontology 2009;39(1):87-94
PURPOSE: The aim of this study was to compare the effectiveness of hydroxyapatite containing toothpaste with positive control toothpastes in reducing dentine hypersensitivity. MATERIALS AND METHODS: This clinical trial was a double-blind, randomized, parallel group comparison of two, namely hydroxyapatite containing toothpaste and strontium chloride containing toothpaste. A total of 55 subjects were included in this study. The subjects were given randomly assigned one of the two toothpastes after received tooth brushing instruction at baseline. Some clinical indices(PI, GI, PD), verbal rating score(VRS) for sensitivity to stimulus, the effect in relieving sensitivity and visual analogue scale(VAS) for sensitivity at baseline, week 2, week 4 and week 8 were assessed. All data were evaluated by intention-to-treat analysis. RESULTS: Overall, PI and GI scores were significantly reduced compare baseline in all groups(p<0.05). In addition, there was significant difference in PI at 4 weeks and in GI at 4, 8 weeks between groups. The proportions of subjects relieved sensitivity were 70.4% in experimental group and 57.1% in control group at 8 weeks respectively. The VRS for sensitivity to three kinds of stimuli and VAS for sensitivity decreased according to time, there was no overall difference between two groups(p>0.05). CONCLUSION: This study demonstrated that the new hydroxyapatite containing toothpaste was similarly effective in reducing dentine hypersensitivity with pre-existing benchmark toothpaste.
Dentin
;
Dentin Sensitivity
;
Durapatite
;
Strontium
;
Tooth
;
Toothpastes
6.Effects of enamel matrix derivatives on biologic activities of human periodontal fibloblasts to demineralized root surface.
Kang Woon LEE ; Tae Il KIM ; Yang Jo SEOL ; Yong Moo LEE ; Young KU ; In Chul RHYU ; Chong Pyung CHUNG ; Soo Boo HAN
The Journal of the Korean Academy of Periodontology 2008;38(4):679-690
PURPOSE: The aim of this study was to investigate the effects of EMD on demineralized root surface using human periodontal ligament cells and compare the effects of root conditioning materials(tetracycline(TCN), EDTA). MATERIAL AND METHODS: Dentin slices were prepared from the extracted teeth and demineralized with TCN and EDTA. Demineralized dentin slices were incubated at culture plate with 25, 50 and 100 microgram/ml concentration of EMD. Cell attachment, alkaline phosphatase activity test, protein synthesis assay and scanning electronic microscopic examination were done. RESULTS: Cells were attached significantly higher in EMD treated group at 7 and 14 days. Cell numbers were significantly higher in EMD treated group. Alkaline phosphatase activity was significantly higher in EMD treated group at 7 and 14 days. Protein synthesis was significantly higher in EMD treated group at 7 and 14 days. CONCLUSION: Enamel matrix derivatives enhance the biologic activities of human periodontal ligament cells on demineralized root surface and its effects are dependent on the concentration of EMD.
Alkaline Phosphatase
;
Cell Count
;
Dental Enamel
;
Dentin
;
Edetic Acid
;
Electronics
;
Electrons
;
Humans
;
Periodontal Ligament
;
Tetracycline
;
Tooth
7.Ante situm Liver Resection under Total Vascular Exclusion and Venovenous Bypass with Hypothermic Perfusion for Treating a Recurrent Rectal Cancer Liver Metastasis.
Chong Woo CHU ; Hyung Chul KIM ; Eung Jin SHIN ; Cheol Wan LIM ; Gyu Seok CHO ; Jun Cheol CHUNG ; Gui Ae JEONG ; Ok Pyung SONG ; Soo Ji JIN ; Hee Kyung KIM ; Seong Jin PARK
Korean Journal of Hepato-Biliary-Pancreatic Surgery 2008;12(2):150-155
We present here a case of recurrent rectal cancer liver metastasis that was managed with ante situm liver resection under total vascular exclusion (TVE) and venovenous bypass with hypothermic perfusion. A 58-year-old man who suffered with rectal cancer liver metastasis was transferred to our hospital in January 2006. A left lateral sectionectomy had been previously performed. Recurrent lesion developed in segments I, IV and VIII one year after the first hepatectomy. The tumor was 5 cm in diameter and it involved the confluence of the hepatic veins and the retrohepatic vena cava. An incomplete tumor-free margin and massive bleeding were expected with performing a conventional liver resection, together with vena cava reconstruction. Therefore, we planned an ante situm liver resection under TVE and venovenous bypass with hypothermic perfusion. After adhesiolysis, hilar dissection was carried out. The inflow to the medial segment was interrupted, and then the liver and inferior vena cava (IVC) were mobilized fully. During controlling the bleeding of a short hepatic vein, we found adhesion of the hepatocaval portion. Therefore, TVE and venovenous bypass were performed along with suprahepatic IVC transection. The long conduit of V5 was preserved during hepatic parenchymal dissection, and the paracaval portion of the caudate lobe was readily detached from the IVC. The suprahepatic IVC was reconstructed after V5 reconstruction with using the saphenous vein. Portal vein anastomosis was then conducted. After reperfusion, an end-to-side anastomosis was performed between the saphenous vein graft and the IVC. Finally, a Roux-en-Y hepaticojejunostomy was carried out. The patient remains well without recurrence 12 months after the last operation.
Ants
;
Hemorrhage
;
Hepatectomy
;
Hepatic Veins
;
Humans
;
Liver
;
Middle Aged
;
Neoplasm Metastasis
;
Perfusion
;
Portal Vein
;
Rectal Neoplasms
;
Recurrence
;
Reperfusion
;
Saphenous Vein
;
Transplants
;
Vena Cava, Inferior
8.Hereditary Hemolytic Anemia in Korea: a Retrospective Study from 1997 to 2006.
Hee Soon CHO ; Jeong Ok HAH ; Im Ju KANG ; Hyung Jin KANG ; Jae Yong KWAK ; Hong Hoe KOO ; Hoon KOOK ; Byoung Kook KIM ; Soon Ki KIM ; Seung Taik KIM ; Young Dae KIM ; Ji Yoon KIM ; Chul Soo KIM ; Thad GHIM ; Heung Sik KIM ; Sang Gyu PARK ; Seon Yang PARK ; Jun Eun PARK ; Soo Mee BANG ; Jong Jin SEO ; Chang In SUH ; Sang Kyun SOHN ; Ho Jin SHIN ; Hee Young SHIN ; Hyo Sup AHN ; Doyeun OH ; Eun Sun YOO ; Chuhl Joo LYU ; Sung Soo YOON ; Kun Soo LEE ; Kwang Chul LEE ; Kee Hyun LEE ; Soon Yong LEE ; Young Ho LEE ; Jung Ae LEE ; Jong Seok LEE ; Young Tak LIM ; Jae Young LIM ; Ho Joon IM ; Dae Chul JEONG ; So Young CHONG ; Joo Seop CHUNG ; Hye Lim JUNG ; Goon Jae CHO ; Deog Yeon JO ; Jong Youl JIN ; Eun Jin CHOI ; Myung Soo HYUN ; Pyung Han HWANG
Korean Journal of Hematology 2007;42(3):197-205
BACKGROUND: The aim of this study was to investigate the prevalence, clinical and laboratory findings of hereditary hemolytic anemia (HHA) in Korea from 1997 to 2006 and to develop the appropriate diagnostic approach for HHA. METHODS: By the use of questionnaires, information on the clinical and laboratory findings ofHHA diagnosed from 1997 to 2006 in Korea was collected and analyzed retrospectively. A total of 431 cases were enrolled in this study from 46 departments of 35 hospitals. RESULTS: The overall frequency of HHA did not change through the 10-year period for pediatrics but did show an increasing tendency for internal medicine. The overall male to female sex ratio did not show sex predominance (1.17:1), but a significant male predominance with a ratio of 1.49:1 was seen for pediatrics while a significant female predominance with a ratio of 1:1.97 was seen forinternal medicine. Of the total cases, 74.2% (282/431) were diagnosed before the age of 15 years. The etiologies of HHA were classified as red cell membrane defects, hemoglobinopathies, red cell enzyme deficiencies and unknown causes. There were 382 cases (88.6%) of red cell membrane defects with 376 cases (87.2%) of hereditary spherocytosis and 6 cases (1.4%) of hereditary elliptocytosis, 20 cases (4.6%) of hemoglobinopathies with 18 cases (4.2%) of beta-thalassemia, a case (0.2%) of alpha-thalassemia and a case (0.2%) of Hemoglobin Madrid, 7 cases (1.6%) of red cell enzyme deficiencies with 5 cases (1.2%) of glucose-6- phosphate dehydrogenase (G-6-PD) deficiency, a case (0.2%) of pyruvate kinase (PK) deficiency and a case (0.2%) of enolase deficiency, and 22 cases (5.1%) of unknown causes. The most common chief complaint in pediatric patients was pallor and that in adult patients was jaundice. In the red cell membrane defect group of patients, the level of hemoglobin was significantly higher than in adult patients. The mean corpuscular volume, mean corpuscular hemoglobin, corrected reticulocyte count, total and indirect bilirubin level and lactate dehydrogenase levels in the hemoglobinopathy group of patients were significantly lower than the values in the red cell membrane defect group of patients. The mean concentration of G-6-PD was 0.8+/-0.7U/1012RBC in the G-6-PD deficient patients, PK was 1.7U/1010 RBC in the PK deficient patient, and the level of enolase was 0.04U/g of Hb in the enolase deficient patient. CONCLUSION: The most prevalent cause of HHA in Korea during 1997 to 2006 was hereditary spherocytosis, but HHA by other causes such as hemoglobinopathy and red cell enzyme deficiency gradually increased with the development of molecular diagnostic methods and increasing general interest. However, the etiologies of HHA need to be pursued further in 5.1% of the patients. An systematic standard diagnostic approach is needed in a nationwide prospective study for correct diagnoses and appropriate management of HHA.
Adult
;
alpha-Thalassemia
;
Anemia, Hemolytic, Congenital*
;
beta-Thalassemia
;
Bilirubin
;
Cell Membrane
;
Diagnosis
;
Elliptocytosis, Hereditary
;
Erythrocyte Indices
;
Female
;
Hemoglobinopathies
;
Humans
;
Internal Medicine
;
Jaundice
;
Korea*
;
L-Lactate Dehydrogenase
;
Male
;
Oxidoreductases
;
Pallor
;
Pathology, Molecular
;
Pediatrics
;
Phosphopyruvate Hydratase
;
Prevalence
;
Pyruvate Kinase
;
Reticulocyte Count
;
Retrospective Studies*
;
Sex Ratio
;
Surveys and Questionnaires
9.Change of plaque removal ability by worn toothbrush.
Hak Churl LEE ; Byung Kun YANG ; Chul Woo LEE ; Yong Moo LEE ; In Chul RHYU ; Chong Pyung CHUNG ; Soo Boo HAN
The Journal of the Korean Academy of Periodontology 2004;34(1):61-70
No abstract available.
10.A case of neonatal lupus syndrome with congenital complete heart block.
Seo Ho CHUNG ; Young LEE ; Yeon Hee CHEON ; In Cheul JUNG ; Won Sik YOON ; Jae Sung LEE ; Chong Seong YI ; Jong Kun LEE ; Soo Pyung KIM
Korean Journal of Obstetrics and Gynecology 2002;45(4):723-727
The neonatal lupus syndrome is characterized by skin lesions, hepatic and hematologic abnormalities and congenital heart block. Congenital heart block which is believed to be caused by transplacental passage of the anti-Ro (SSA)/La (SSB) antibodies from mother to infant, is known to occur in 1 in 20,000 live births. In contrast to other manifestation of neonatal lupus syndrome, which usually subside within 6 months after birth, congenital heart block is a permanent and potentially fatal complication. We experienced a case of neonatal lupus syndorme with congenital complete heart block in a newborn of asyptomatic mother with anti-Ro (SSA)/ La (SSB) antibodies.
Antibodies
;
Heart Block*
;
Heart*
;
Humans
;
Infant
;
Infant, Newborn
;
Live Birth
;
Mothers
;
Parturition
;
Skin

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