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Li C, Di AF, Li Q, Tan MZ, Hong JK, Duan KQ, Mei LL, He YS, Jiang XC. [Microanatomy and functional MRI study of arcuate fasciculus and superior longitudinal fasciculus]. Zhonghua Wai Ke Za Zhi 2023; 61:1020-1025. [PMID: 37767670 DOI: 10.3760/cma.j.cn112139-20230322-00120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Subscribe] [Scholar Register] [Indexed: 09/29/2023]
Abstract
Objectives: To explore the microanatomy and functional MRI(fMRI) of arcuate fasciculus(AF) and superior longitudinal fasciculus(SLF),and to analyze their functions. Methods: Ten normal adult cadaveric head specimens (20 cerebral hemispheres) were fixed with 10% methanal at the Translational Research Institute for Neurological Disorders of the Wannan Medical Collegefrom February to December 2022.The Klingler fiber dissection technique was utilized to perform white matter fiber dissection,with a magnification ranging from 6 to 40.The study focused on the microanatomical structures of the AF and SLF,aiming to explore their relationships with deep brain fibers.Furthermore, six healthy adult volunteers who underwent fMRI of the brain were included.The collected diffusion tensor imaging (DTI) data were processed and integrated with the microanatomical findings for a comprehensive analysis. Results: After removing the gray matter of the cerebral cortex,the superficial U fibers were exposed.The long association fibers that beneath the U fibers were the AF and SLF,which were the main long association fibers in the superficial layers of the brain.The AF could be divided into dorsal and ventral parts,while the SLF could be divided into Ⅰ,Ⅱ,and Ⅲ.SLF Ⅰ lied within the upper bank of the cingulate sulcus,travels medial to the callosal sulcus.The SLF Ⅱ,Ⅲ,and the AF were located on the lateral surface of the brain.By removing the gray matter of the insular cortex and the extreme capsule,exposing the external capsule and claustrum.Subsequently,the AF and SLF Ⅱ,Ⅲ were dissected,revealing the corona radiata and sagittal stratum,along with other deep brain fibers.During the dissection,it was observed that there was a close connection between the AF,SLF Ⅱ,and the deep brain fibers.Furthermore,in the regions above the lateral fissure of the cerebral hemisphere,there was no direct connection of long association fibers between the gray matter cortex and the deep U fibers in the coronal plane.These findings were further supported by DTI studies. Conclusions: The AF and SLF are the major long association fibers that located in the superficial layers of the brain,and closely connect to the gray matter cortex and U fibers,even closely relate with deep brain fibers.In the regions above the lateral fissure of the hemisphere,only the AF and SLF Ⅱ and Ⅲ serve as superficial long association fibers in the anterior-posterior direction.These fibers are likely involved in the transmission of brain functional information between the top and bottom gray matter cortex in the coronal plane above the lateral fissure.
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Affiliation(s)
- C Li
- Department of Neurosurgery,Ma'anshan People's Hospital,Ma'anshan 243000,China
| | - A F Di
- Department of Neurosurgery,the First Affiliated Hospital of Wannan Medical College,Wuhu 241000,China
| | - Q Li
- Department of Human Anatomy,School of Basic Medicine,Wannan Medical College,Wuhu 241000,China
| | - M Z Tan
- Department of Neurosurgery,the First Affiliated Hospital of Wannan Medical College,Wuhu 241000,China
| | - J K Hong
- Department of Neurosurgery,Ma'anshan People's Hospital,Ma'anshan 243000,China
| | - K Q Duan
- Department of Neurosurgery,the First Affiliated Hospital of Wannan Medical College,Wuhu 241000,China
| | - L L Mei
- Department of Radiology,Ma'anshan People's Hospital,Ma'anshan 243000,China
| | - Y S He
- Department of Radiology,Ma'anshan People's Hospital,Ma'anshan 243000,China
| | - X C Jiang
- Department of Neurosurgery,the First Affiliated Hospital of Wannan Medical College,Wuhu 241000,China
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Maurya AK, Reddy BS, Theerthagiri J, Narayana PL, Park CH, Hong JK, Yeom JT, Cho KK, Reddy NS. Modeling and optimization of process parameters of biofilm reactor for wastewater treatment. Sci Total Environ 2021; 787:147624. [PMID: 34000535 DOI: 10.1016/j.scitotenv.2021.147624] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Revised: 04/19/2021] [Accepted: 05/03/2021] [Indexed: 06/12/2023]
Abstract
The efficiency of heavy metal in biofilm reactors depends on absorption process parameters, and those relationships are complicated. This study explores artificial neural networks (ANNs) feasibility to correlate the biofilm reactor process parameters with absorption efficiency. The heavy metal removal and turbidity were modeled as a function of five process parameters, namely pH, temperature(°C), feed flux(ml/min), substrate flow(ml/min), and hydraulic retention time(h). We developed a standalone ANN software for predicting and analyzing the absorption process in handling industrial wastewater. The model was tested extensively to confirm that the predictions are reasonable in the context of the absorption kinetics principles. The model predictions showed that the temperature and pH values are the most influential parameters affecting absorption efficiency and turbidity.
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Affiliation(s)
- A K Maurya
- Advanced Metals Division, Titanium Department, Korea Institute of Materials Science, Changwon 51508, South Korea; Virtual Materials Lab, School of Materials Science and Engineering, Engineering Research Institute, Gyeongsang National University, Jinju 52828, South Korea
| | - B S Reddy
- Department of Materials Engineering and Convergence Technology & RIGET, Gyeongsang National University, Jinju 52828, South Korea
| | - J Theerthagiri
- Department of Chemistry and Research Institute of Natural Science, Gyeongsang National University, Jinju, South Korea
| | - P L Narayana
- Advanced Metals Division, Titanium Department, Korea Institute of Materials Science, Changwon 51508, South Korea; Virtual Materials Lab, School of Materials Science and Engineering, Engineering Research Institute, Gyeongsang National University, Jinju 52828, South Korea
| | - C H Park
- Advanced Metals Division, Titanium Department, Korea Institute of Materials Science, Changwon 51508, South Korea
| | - J K Hong
- Advanced Metals Division, Titanium Department, Korea Institute of Materials Science, Changwon 51508, South Korea
| | - J-T Yeom
- Advanced Metals Division, Titanium Department, Korea Institute of Materials Science, Changwon 51508, South Korea.
| | - K K Cho
- Department of Materials Engineering and Convergence Technology & RIGET, Gyeongsang National University, Jinju 52828, South Korea
| | - N S Reddy
- Virtual Materials Lab, School of Materials Science and Engineering, Engineering Research Institute, Gyeongsang National University, Jinju 52828, South Korea.
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Hong JK, Han HS, Yoo KH. Inflammatory linear verrucous epidermal naevus successfully treated with a combination of triple topical agents (corticosteroid, calcipotriol and 20% urea). Clin Exp Dermatol 2021; 46:940-942. [PMID: 33577097 DOI: 10.1111/ced.14603] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2021] [Revised: 02/03/2021] [Accepted: 02/10/2021] [Indexed: 11/28/2022]
Affiliation(s)
- J K Hong
- Department of Dermatology, Chung-Ang University College of Medicine, Seoul, Korea
| | - H S Han
- Department of Dermatology, Chung-Ang University College of Medicine, Seoul, Korea
| | - K H Yoo
- Department of Dermatology, Chung-Ang University College of Medicine, Seoul, Korea
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Kim KS, Edea Z, Hong JK, Jung YC, Kim ES, Rothschild MF. P5036 Selection signatures in commercial Duroc pig populations revealed by high density SNP chip. J Anim Sci 2016. [DOI: 10.2527/jas2016.94supplement4133x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Hong JK, Lim J, Lee BY, Kwak M. Isolation and characterization of novel microsatellites for Abies koreana and A. nephrolepis (Pinaceae). Genet Mol Res 2016; 15:gmr7542. [PMID: 27173282 DOI: 10.4238/gmr.15027542] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Abies koreana is an endemic and rare species from Korea and is classified as endangered by the International Union for Conservation of Nature. Although the genetic diversity assessment for current population of A. koreana needs to be performed urgently, no microsatellite markers have been developed for this species. In the present study, we developed 22 novel polymorphic microsatellite loci and the characteristics of these loci were determined in A. koreana as well as in Abies nephrolepis, the most closely related species, and these loci were compared with previously reported microsatellite markers developed for the Abies genus. Genomic sequence (161 Mbp; 325,776 reads) was obtained from one individual of A. koreana using Roche 454 GS-FLX Titanium sequencing and 19,258 repeat motifs were identified from it. A total of 288 primer pairs with high copy numbers of di-repeat motifs were evaluated for amplification in A. koreana and A. nephrolepis. A total of 71 primer pairs successfully amplified fragments, of which 22 showed polymorphisms in A. koreana and A. nephrolepis. The average expected diversity was 0.767 and 0.717 in A. koreana and A. nephrolepis, respectively; these heterozygosity levels were moderate compared to the previously reported microsatellite loci from Abies species. This is the first set of microsatellite markers developed for A. koreana as well as A. nephrolepis and further population genetic studies of both species and genetic delimitation can be carried out for the species conservation and management.
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Affiliation(s)
- J K Hong
- Plant Resources Division, National Institute of Biological Resources, Incheon, Korea
| | - J Lim
- Plant Resources Division, National Institute of Biological Resources, Incheon, Korea
| | - B Y Lee
- Plant Resources Division, National Institute of Biological Resources, Incheon, Korea
| | - M Kwak
- Plant Resources Division, National Institute of Biological Resources, Incheon, Korea
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Park JC, Lee SH, Hong JK, Cho JH, Kim IH, Park SK. Effect of dietary supplementation of procyanidin on growth performance and immune response in pigs. Asian-Australas J Anim Sci 2014; 27:131-9. [PMID: 25049935 PMCID: PMC4093277 DOI: 10.5713/ajas.2013.13359] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 05/24/2013] [Revised: 10/11/2013] [Accepted: 09/04/2013] [Indexed: 11/27/2022]
Abstract
This study was performed to determine the effect of dietary supplementation of procyanidin on growth performance, blood characteristics, and immune function in growing pigs. In experiment 1 (Exp. 1), thirty-two crossbred pigs with an initial BW of 19.2±0.3 kg were allocated into 4 treatments for an 8-wk experiment: i) CON (basal diet), ii) MOS 0.1 (basal diet+0.1% mannanoligosaccharide), iii) Pro-1 (basal diet+0.01% procyanidin), and iv) Pro-2 (basal diet+0.02% procyanidin). Pigs fed Pro-1 and Pro-2 diets had greater (p<0.05) gain:feed ratio compared with those fed CON or MOS 0.1 diets. Serum creatinine concentration was less (p<0.05) in Pro-2 treatment than those in CON, MOS 0.1 and Pro-1 treatments. In Exp. 2, twelve pigs (BW 13.4±1.3 kg) received basal diet with i) 0 (CON), ii) 0.02% (Pro-0.02%), and iii) 0.04% procyanidin (Pro-0.04%) for 4 wk. Concentration of platelets was lower (p<0.05) in the Pro-0.04% group compared to CON at 24 h after lipopolysaccharide (LPS) challenge. In addition, secretion of cytokines from cultured peripheral blood mononuclear cells (PBMC) in the presence or absence of procyanidin was examined. The levels of interleukin (IL)-1β, IL-6 and tumor necrosis factor (TNF)-α were lower (p<0.05) in Pro (LPS-stimulated PBMCs+procyanidin) than those in CON (LPS-stimulated PBMCs+PBS) at 4 h after LPS challenge. These data suggest that dietary addition of procyanidin improves feed efficiency and anti-inflammatory cytokines of pigs.
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Affiliation(s)
- J C Park
- National Institute of Animal Science, R.D.A., Suwon 441-706, Korea
| | - S H Lee
- National Institute of Animal Science, R.D.A., Suwon 441-706, Korea
| | - J K Hong
- National Institute of Animal Science, R.D.A., Suwon 441-706, Korea
| | - J H Cho
- National Institute of Animal Science, R.D.A., Suwon 441-706, Korea
| | - I H Kim
- National Institute of Animal Science, R.D.A., Suwon 441-706, Korea
| | - S K Park
- National Institute of Animal Science, R.D.A., Suwon 441-706, Korea
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Abstract
A chitinase cDNA clone (designated CAChi2) was isolated from the cDNA library of pepper leaves infected with Xanthomonas campestris pv. vesicatoria. The 1004-bp full-length CAChi2 cDNA encodes a basic chitinase with an N-terminal 24 amino acid signal peptide followed by a catalytic region. An analysis of its sequence indicates that CAChi2 is a class II chitinase, because it does not have chitin-binding domain and C-terminal extension sequences. The deduced amino acid sequence of CAChi2 has a high level of identity with class II chitinases from potato, tomato, tobacco and petunia. Southern analysis demonstrated that the CAChi2 chitinase is encoded by a single or two copy genes in the pepper genome. Following X. campestris pv. vesicatoria or Phytophthora capsici infection, the CAChi2 chitinase mRNA was more highly expressed in the incompatible interaction, compared to expression in the compatible interaction. Treatment with ethylene-releasing ethephon resulted in a strong accumulation of the transcripts in the leaves. In contrast, DL-beta-amino-n-butyric acid, salicylic acid and methyl jasmonate were not effective in inducing CAChi2 transcripts in pepper leaves.
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Affiliation(s)
- JK Hong
- Molecular Plant Pathology Laboratory, Department of Agricultural Biology, College of Natural Resources, Korea University, 136-701, Seoul, South Korea
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Abstract
We describe a patient in whom two tuberculids, lichen scrofulosorum, and erythema induratum occurred simultaneously. The clinical and histopathologic features were characteristic and a Mantoux test showed a positive reaction. There was no extracutaneous focus of tuberculosis. Polymerase chain reaction for mycobacteria in the skin lesions was negative, but her lesions responded rapidly to antituberculous chemotherapy.
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Affiliation(s)
- Y M Park
- Department of Dermatology, College of Medicine, The Catholic University of Korea, Seoul
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Joo J, Lee JK, Hong JK, Baeck JS, Lee WP, Epstein AJ, Jang KS, Suh JS, Oh EJ. Charge Transport and Spin Dynamics of Chemically Synthesized Polypyrrole Soluble in Organic Solvents. Macromolecules 1998. [DOI: 10.1021/ma970508v] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
| | | | | | | | - W. P. Lee
- Department of Physics, The Ohio State University, Columbus, Ohio 43210
| | - A. J. Epstein
- Department of Physics and Department of Chemistry, The Ohio State University, Columbus, Ohio 43210-1106
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Lee CH, Koshino H, Chung MC, Lee HJ, Hong JK, Yoo JS, Kho YH. MR566A and MR566B, new melanin synthesis inhibitors produced by Trichoderma harzianum. II. Physico-chemical properties and structural elucidation. J Antibiot (Tokyo) 1997; 50:474-8. [PMID: 9268002 DOI: 10.7164/antibiotics.50.474] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
New melanin synthesis inhibitors (MR566A and B) and six related known isocyanocyclopentenes were isolated from the fermentation broth of Trichoderma harzianum, and their structures were elucidated by spectroscopic methods. The structures of novel isocyanides, MR566A (1) and B (2), were elucidated as 1-(3-chloro-1,2-dihydroxy-4-isocyano-4-cyclopenten-1-yl)etha nol, 1-(1,2,3-trihydroxy-3-isocyano-4-cyclopenten-1-yl)ethanol, respectively. The structure of novel oxazole, MR93B (9), was elucidated as 4-[(1Z)-3-hydroxy-2-hydroxymethyl-1-propen-1-yl]oxazole.
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Affiliation(s)
- C H Lee
- Korea Research Institute of Bioscience & Biotechnology, Taejon
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Lho DS, Hong JK, Paek HK, Lee JA, Park J. Determination of phenolalkylamines, narcotic analgesics, and beta-blockers by gas chromatography/mass spectrometry. J Anal Toxicol 1990; 14:77-83. [PMID: 1969976 DOI: 10.1093/jat/14.2.77] [Citation(s) in RCA: 29] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
An analytical procedure for determination of phenolalkylamines, narcotic analgesics, and beta-blockers in urine by gas chromatography/mass spectrometry (GC/MS) is described. The detection of phenolalkylamines, narcotic analgesics, and beta-blockers is based on acid hydrolysis, liquid-liquid extraction, and selective derivatization. For screening of phenolalkylamines the m/e 179 and 267 ions were monitored by GC/MS. With narcotic analgesics, the extracted ion corresponded to the molecular ion (M+) of the drug and two additional characteristic ions. Beta-blockers were analyzed as the selectively derivatized forms of the parent molecule and its metabolites by GC/MS with selected ion monitoring. The ions monitored for screening of beta-blockers containing an isopropylamine group were m/e 284 and 129 ions. The ion at m/e 86 was monitored to characterize the tert-butylamine group of beta-blockers.
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Affiliation(s)
- D S Lho
- Doping Control Center, Korea Institute of Science and Technology, Cheongryang, Seoul
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Kim KS, Wass CA, Hong JK, Concepcion NF, Anthony BF. Demonstration of opsonic and protective activity of human cord sera against type III group B streptococcus that are independent of type-specific antibody. Pediatr Res 1988; 24:628-32. [PMID: 3060825 DOI: 10.1203/00006450-198811000-00018] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
In an effort to further understand the host defense against group B streptococcus (GBS), we examined 71 human cord sera for their content of type III GBS IgG antibody by enzyme-linked immunosorbent assay and correlated the results with opsonic and protective activity against type III GBS. Most cord sera (67%) containing greater than 0.1 microgram/ml of type III GBS IgG antibody promoted phagocytosis and killing in vitro and protection against type III GBS in neonatal rats. However, 26% of cord sera containing less than 0.1 microgram/ml of type III IgG antibody exhibited similar activity in vitro and in vivo against type III GBS. This opsonic and protective activity was retained in IgG fraction of whole serum, and was not directly associated with complement activity or with fibronectin. Further studies are needed to understand the mechanisms responsible for the opsonic and protective activity of some cord sera against type III GBS that may be independent of antibody to the type-specific polysaccharide antigen.
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Affiliation(s)
- K S Kim
- Department of Pediatrics, Childrens Hospital of Los Angeles, USC School of Medicine 90027
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