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Kim HJ, Cha S, Choi JS, Lee JY, Kim KE, Kim JK, Kim J, Moon SY, Lee SHS, Park K, Won SY. scAAV2-Mediated Expression of Thioredoxin 2 and C3 Transferase Prevents Retinal Ganglion Cell Death and Lowers Intraocular Pressure in a Mouse Model of Glaucoma. Int J Mol Sci 2023; 24:16253. [PMID: 38003443 PMCID: PMC10671512 DOI: 10.3390/ijms242216253] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Revised: 11/04/2023] [Accepted: 11/07/2023] [Indexed: 11/26/2023] Open
Abstract
Elevated intraocular pressure (IOP) in glaucoma causes retinal ganglion cell (RGC) loss and damage to the optic nerve. Although IOP is controlled pharmacologically, no treatment is available to restore retinal and optic nerve function. In this paper, we aimed to develop a novel gene therapy for glaucoma using an AAV2-based thioredoxin 2 (Trx2)-exoenzyme C3 transferase (C3) fusion protein expression vector (scAAV2-Trx2-C3). We evaluated the therapeutic effects of this vector in vitro and in vivo using dexamethasone (DEX)-induced glaucoma models. We found that scAAV2-Trx2-C3-treated HeLa cells had significantly reduced GTP-bound active RhoA and increased phosphor-cofilin Ser3 protein expression levels. scAAV2-Trx2-C3 was also shown to inhibit oxidative stress, fibronectin expression, and alpha-SMA expression in DEX-treated HeLa cells. NeuN immunostaining and TUNEL assay in mouse retinal tissues was performed to evaluate its neuroprotective effect upon RGCs, whereas changes in mouse IOP were monitored via rebound tonometer. The present study showed that scAAV2-Trx2-C3 can protect RGCs from degeneration and reduce IOP in a DEX-induced mouse model of glaucoma, while immunohistochemistry revealed that the expression of fibronectin and alpha-SMA was decreased after the transduction of scAAV2-Trx2-C3 in murine eye tissues. Our results suggest that AAV2-Trx2-C3 modulates the outflow resistance of the trabecular meshwork, protects retinal and other ocular tissues from oxidative damage, and may lead to the development of a gene therapeutic for glaucoma.
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Affiliation(s)
- Hee Jong Kim
- Institute of New Drug Development Research, Cdmogen Co., Ltd., Seoul 05855, Republic of Korea; (H.J.K.); (S.C.); (J.-S.C.); (J.K.K.); (J.K.); (S.Y.M.); (S.H.S.L.); (K.P.)
- Cdmogen Co., Ltd., Cheongju 28577, Republic of Korea
| | - Seho Cha
- Institute of New Drug Development Research, Cdmogen Co., Ltd., Seoul 05855, Republic of Korea; (H.J.K.); (S.C.); (J.-S.C.); (J.K.K.); (J.K.); (S.Y.M.); (S.H.S.L.); (K.P.)
- Cdmogen Co., Ltd., Cheongju 28577, Republic of Korea
| | - Jun-Sub Choi
- Institute of New Drug Development Research, Cdmogen Co., Ltd., Seoul 05855, Republic of Korea; (H.J.K.); (S.C.); (J.-S.C.); (J.K.K.); (J.K.); (S.Y.M.); (S.H.S.L.); (K.P.)
- Cdmogen Co., Ltd., Cheongju 28577, Republic of Korea
| | - Joo Yong Lee
- Department of Ophthalmology, Asan Medical Center, College of Medicine, University of Ulsan, Seoul 05505, Republic of Korea; (J.Y.L.); (K.E.K.)
- Bio-Medical Institute of Technology, College of Medicine, University of Ulsan, Seoul 05505, Republic of Korea
| | - Ko Eun Kim
- Department of Ophthalmology, Asan Medical Center, College of Medicine, University of Ulsan, Seoul 05505, Republic of Korea; (J.Y.L.); (K.E.K.)
- Bio-Medical Institute of Technology, College of Medicine, University of Ulsan, Seoul 05505, Republic of Korea
| | - Jin Kwon Kim
- Institute of New Drug Development Research, Cdmogen Co., Ltd., Seoul 05855, Republic of Korea; (H.J.K.); (S.C.); (J.-S.C.); (J.K.K.); (J.K.); (S.Y.M.); (S.H.S.L.); (K.P.)
- Cdmogen Co., Ltd., Cheongju 28577, Republic of Korea
| | - Jin Kim
- Institute of New Drug Development Research, Cdmogen Co., Ltd., Seoul 05855, Republic of Korea; (H.J.K.); (S.C.); (J.-S.C.); (J.K.K.); (J.K.); (S.Y.M.); (S.H.S.L.); (K.P.)
- Cdmogen Co., Ltd., Cheongju 28577, Republic of Korea
| | - Seo Yun Moon
- Institute of New Drug Development Research, Cdmogen Co., Ltd., Seoul 05855, Republic of Korea; (H.J.K.); (S.C.); (J.-S.C.); (J.K.K.); (J.K.); (S.Y.M.); (S.H.S.L.); (K.P.)
- Cdmogen Co., Ltd., Cheongju 28577, Republic of Korea
| | - Steven Hyun Seung Lee
- Institute of New Drug Development Research, Cdmogen Co., Ltd., Seoul 05855, Republic of Korea; (H.J.K.); (S.C.); (J.-S.C.); (J.K.K.); (J.K.); (S.Y.M.); (S.H.S.L.); (K.P.)
- Cdmogen Co., Ltd., Cheongju 28577, Republic of Korea
| | - Keerang Park
- Institute of New Drug Development Research, Cdmogen Co., Ltd., Seoul 05855, Republic of Korea; (H.J.K.); (S.C.); (J.-S.C.); (J.K.K.); (J.K.); (S.Y.M.); (S.H.S.L.); (K.P.)
- Cdmogen Co., Ltd., Cheongju 28577, Republic of Korea
| | - So-Yoon Won
- Institute of New Drug Development Research, Cdmogen Co., Ltd., Seoul 05855, Republic of Korea; (H.J.K.); (S.C.); (J.-S.C.); (J.K.K.); (J.K.); (S.Y.M.); (S.H.S.L.); (K.P.)
- Cdmogen Co., Ltd., Cheongju 28577, Republic of Korea
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Lee JB, Choi JS. Healthcare workers' epidemiology of occupational exposure to blood-borne viruses, post-exposure prophylaxis, and seroconversion over 10 years. J Hosp Infect 2023; 135:18-27. [PMID: 36805081 DOI: 10.1016/j.jhin.2023.02.003] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2022] [Revised: 01/25/2023] [Accepted: 02/06/2023] [Indexed: 02/19/2023]
Abstract
BACKGROUND Healthcare workers (HCWs) have an increased risk of blood-borne pathogen (BBP) infection due to occupational blood exposures (OBEs). Early reporting, detection, and post-exposure prophylaxis (PEP) allows for prevention of infections. AIM To investigate the incidence of OBEs, related epidemiological characteristics, PEP completion rate, time and reason for PEP discontinuation, and seroconversion rate reported over 10 years. METHODS We retrospectively analysed 1,086 OBE cases and staff PEP management from January 2012 to December 2021 in a South Korean tertiary hospital. FINDINGS The mean incidence of OBE was 7.82 per 100 beds and 3.0 per 100 HCWs. Among 1,086 cases, 633 (58.3%) required PEP, and 453 (41.7%) did not. After OBEs, 70.1% (444/633) of those subject to PEP completed tracking, and 29.9% (189/633) stopped PEP tracking (p < 0.001). The PEP completion rate showed a significant difference according to gender (p = 0.024), occupation (p < 0.001), and exposure frequency (p < 0.001). None of the 444 HCWs who completed PEP seroconverted to hepatitis B virus, hepatitis C virus, human immunodeficiency virus, or Treponema pallidum (syphilis). CONCLUSION Our findings demonstrate the need to improve follow-up care among HCWs following OBEs. There is a need for education in healthcare facilities; moreover, establishing a national surveillance system is necessary to ensure that HCWs proactively undergo PEP and complete their follow-up visits.
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Affiliation(s)
- J B Lee
- Gachon University Gil Hospital, Incheon, South Korea
| | - J S Choi
- Gachon University College of Nursing, Incheon, South Korea.
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Lee JB, Choi JS. The effect of an isolation-coping programme on patients isolated for colonization or infection with multidrug-resistant organisms: a quasi-experimental study. J Hosp Infect 2022; 129:31-37. [PMID: 35987316 DOI: 10.1016/j.jhin.2022.08.002] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2022] [Revised: 08/07/2022] [Accepted: 08/09/2022] [Indexed: 11/19/2022]
Abstract
BACKGROUND The global increase in the prevalence of vancomycin-resistant enterococci (VRE) and carbapenem-resistant Enterobacterales (CRE) among multidrug-resistant organisms (MDROs) has necessitated contact precaution and isolation in medical institutions. Contact isolation has a negative effect on the mental health of patients, but few interventions have addressed this issue. AIM This study evaluated an isolation-coping programme developed for patients colonized or infected with VRE or CRE. METHODS To mitigate the negative effects of isolation due to having MDRO, an infection control nurse in the present study 1) developed an isolation-coping programme and 2) validated the programme's effect on the uncertainty, anxiety, depression, and knowledge of patients isolated because of MDRO (VRE or CRE) using a pre-post quasi-experimental design. FINDINGS The experimental group (n=56) received education and emotional support via the isolation-coping programme, while the control group (n=55) received only verbal isolation guidelines provided by the medical institution. Compared with the control group, the experimental group showed a reduction in uncertainty (t=-8.925), anxiety (Z=-6.131), and depression (Z=-5.379), and better knowledge (Z=-8.372) (p<.001 for all). CONCLUSION The novel isolation-coping programme is an effective intervention to improve uncertainty, anxiety, depression, and knowledge in patients isolated with VRE or CRE.
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Affiliation(s)
- J B Lee
- Gachon University Gil Hospital, Incheon, South Korea
| | - J S Choi
- Gachon University College of Nursing, Incheon, South Korea.
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Baek YY, Sung B, Choi JS, Go HK, Kim DH, Hyon JY, You JC. In Vivo Efficacy of Imatinib Mesylate, a Tyrosine Kinase Inhibitor, in the Treatment of Chemically Induced Dry Eye in Animal Models. Transl Vis Sci Technol 2021; 10:14. [PMID: 34520512 PMCID: PMC8444463 DOI: 10.1167/tvst.10.11.14] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
Purpose Dry eye disease (DED) is a multifactorial disorder of the tears and ocular surface accompanied by ocular discomfort, visual disturbance, tear film instability, and ocular surface inflammation. In the present study, we evaluated the efficacy of the tyrosine kinase inhibitor imatinib mesylate for the treatment of DED. Methods Experimental models of DED were generated in Sprague Dawley rats using a combination of benzalkonium chloride (BAC) with atropine sulfate and in New Zealand White rabbits using BAC. The animals were treated twice daily with eye drops of vehicle, imatinib (0.01%-0.3%), or a positive control (Restasis). The improvement in DED due to imatinib was assessed by staining with fluorescein, lissamine green, impression cytology, and histological analysis. In addition, immunofluorescence staining was performed at the end of the study to evaluate the inflammatory response in the ocular surface. Results Topical application of imatinib significantly reduced ocular surface damage compared with vehicle-treated animals. Imatinib restored the morphology and structure of the conjunctival epithelium and reduced the recruitment of immune cells in the corneal epithelium. Furthermore, imatinib significantly reduced the impression cytology score, thus demonstrating that imatinib prevents the loss of goblet cells in DED animal models. The therapeutic efficacy of imatinib was similar to or better than that of cyclosporine treatment. Conclusions In this study, we provide an animal in vivo proof of concept of the therapeutic potential of imatinib for the treatment of DED. Translational Relevance With this study we show the possibility of developing imatinib as a new ophthalmic drop to treat DED.
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Affiliation(s)
| | | | | | | | | | - Joon Young Hyon
- Department of Ophthalmology, Seoul National University College of Medicine, Seoul National University Bundang Hospital, Seongnam, Republic of Korea
| | - Ji Chang You
- Avixgen Inc., Seoul, Republic of Korea.,National Research Laboratory for Molecular Virology, Department of Pathology, School of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
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Cha S, Seo WI, Woo HN, Kim HJ, Lee SHS, Kim J, Choi JS, Park K, Lee JY, Lee BJ, Lee H. AAV expressing an mTOR-inhibiting siRNA exhibits therapeutic potential in retinal vascular disorders by preserving endothelial integrity. FEBS Open Bio 2021; 12:71-81. [PMID: 34431239 PMCID: PMC8727948 DOI: 10.1002/2211-5463.13281] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2020] [Revised: 05/18/2021] [Accepted: 08/24/2021] [Indexed: 11/29/2022] Open
Abstract
Expanding on previous demonstrations of the therapeutic effects of adeno‐associated virus (AAV) carrying small‐hairpin RNA (shRNA) in downregulating the mechanistic target of rapamycin (mTOR) in in vivo retinal vascular disorders, vascular endothelial growth factor (VEGF)‐stimulated endothelial cells were treated with AAV2‐shmTOR to examine the role of mTOR inhibition in retinal angiogenesis. AAV2‐shmTOR exposure significantly reduced mTOR expression in human umbilical vein endothelial cells (HUVECs) and decreased downstream signaling cascades of mTOR complex 1 (mTORC1) and mTORC2 under VEGF treatment. Moreover, the angiogenic potential of VEGF was significantly inhibited by AAV2‐shmTOR, which preserved endothelial integrity by maintaining tight junctions between HUVECs. These data thus support previous in vivo studies and provide evidence that AAV2‐shmTOR induces therapeutic effects by inhibiting the neovascularization of endothelial cells.
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Affiliation(s)
- Seho Cha
- CuroGene Life Sciences Co., Ltd., Cheongju, Korea
| | - Won-Il Seo
- Department of Veterinary Medicine: College of Veterinary Medicine, Chungbuk National University, Cheongju, Korea
| | - Ha-Na Woo
- Department of Microbiology, College of Medicine, University of Ulsan, Seoul, Korea.,Bio-Medical Institute of Technology, College of Medicine, University of Ulsan, Seoul, Korea
| | - Hee Jong Kim
- CuroGene Life Sciences Co., Ltd., Cheongju, Korea
| | - Steven Hyun Seung Lee
- CuroGene Life Sciences Co., Ltd., Cheongju, Korea.,Department of Microbiology, College of Medicine, University of Ulsan, Seoul, Korea.,Department of Medical Science, Asan Medical Institute of Convergence Science and Technology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Jin Kim
- CuroGene Life Sciences Co., Ltd., Cheongju, Korea
| | - Jun-Sub Choi
- CuroGene Life Sciences Co., Ltd., Cheongju, Korea
| | - Keerang Park
- CuroGene Life Sciences Co., Ltd., Cheongju, Korea
| | - Joo Yong Lee
- Bio-Medical Institute of Technology, College of Medicine, University of Ulsan, Seoul, Korea.,Department of Ophthalmology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Beom Jun Lee
- Department of Veterinary Medicine: College of Veterinary Medicine, Chungbuk National University, Cheongju, Korea
| | - Heuiran Lee
- Bio-Medical Institute of Technology, College of Medicine, University of Ulsan, Seoul, Korea.,Department of Microbiology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
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Kotsougiani-Fischer D, Choi JS, Oh-Fischer JS, Diehm YF, Haug VF, Harhaus L, Gazyakan E, Hirche C, Kneser U, Fischer S. ICF-based multidisciplinary rehabilitation program for complex regional pain syndrome of the hand: efficacy, long-term outcomes, and impact of therapy duration. BMC Surg 2020; 20:306. [PMID: 33256710 PMCID: PMC7708143 DOI: 10.1186/s12893-020-00982-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2020] [Accepted: 11/23/2020] [Indexed: 11/24/2022] Open
Abstract
Background Complex regional pain syndrome (CRPS) is a rare but feared complication in hand surgery. Although multimodal therapy concepts are recommended, there is only low evidence on efficacy of such approaches. Furthermore, recommendations regarding therapy duration are lacking. Aim of this study was to validate the efficacy of an International Classification of Functioning, Disability and Health (ICF)-based multidisciplinary rehabilitation concept for treatment of CRPS of the hand and to find correlations between therapy duration and outcome measures. Methods Patients with CRPS of the hand after occupational trauma that underwent an ICF-based rehabilitation program between 2010 and 2014 were included in this retrospective study. Besides demographic data, outcomes included pain (VAS), range of motion assessed by fingertip-to-palm-distance (PTPD) and fingernail-to-table-distance (FTTD) as well as strength in grip, 3-point pinch and lateral pinch. All measures were gathered at admission to and discharge from inpatient rehabilitation therapy as well as at follow-up. Statistical analysis included paired t-test, ANOVA and Pearson's correlation analysis. Results Eighty-nine patients with a mean age of 45 years were included in this study. Duration of rehabilitation therapy was 53 days on average. All outcomes improved significantly during rehabilitation therapy. Pain decreased from 6.4 to 2.2. PTPD of digit 2 to 5 improved from 2.5, 2.8, 2.6, and 2.3 cm to 1.3, 1.4, 1.2, and 1.1 cm, respectively. FTTD of digit 2 to 5 decreased from 1.5, 1.7, 1.5, and 1.6 cm to 0.6, 0.8, 0.7, and 0.7 cm, respectively. Strength ameliorated from 9.5, 3.7, 2.7 kg to 17.9, 5.6, 5.0 kg in grip, lateral pinch, and 3-point pinch, respectively. Improvement in range of motion significantly correlated with therapy duration. 54% of patients participated at follow-up after a mean of 7.5 months. Outcome measures at follow-up remained stable compared to discharge values without significant differences. Conclusion The ICF-based rehabilitation concept is a reliable and durable treatment option for CRPS of the hand. Range of motion improved continuously with therapy duration and thus may serve as an indicator for optimum length of therapy.
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Affiliation(s)
- D Kotsougiani-Fischer
- BG Trauma Center Ludwigshafen, Department for Hand-, Plastic- and Reconstructive Surgery, University of Heidelberg, Ludwig-Guttmann-Str. 13, 67071, Ludwigshafen, Germany
| | - J S Choi
- BG Trauma Center Ludwigshafen, Department for Hand-, Plastic- and Reconstructive Surgery, University of Heidelberg, Ludwig-Guttmann-Str. 13, 67071, Ludwigshafen, Germany
| | - J S Oh-Fischer
- BG Trauma Center Ludwigshafen, Department for Hand-, Plastic- and Reconstructive Surgery, University of Heidelberg, Ludwig-Guttmann-Str. 13, 67071, Ludwigshafen, Germany
| | - Y F Diehm
- BG Trauma Center Ludwigshafen, Department for Hand-, Plastic- and Reconstructive Surgery, University of Heidelberg, Ludwig-Guttmann-Str. 13, 67071, Ludwigshafen, Germany
| | - V F Haug
- BG Trauma Center Ludwigshafen, Department for Hand-, Plastic- and Reconstructive Surgery, University of Heidelberg, Ludwig-Guttmann-Str. 13, 67071, Ludwigshafen, Germany
| | - L Harhaus
- BG Trauma Center Ludwigshafen, Department for Hand-, Plastic- and Reconstructive Surgery, University of Heidelberg, Ludwig-Guttmann-Str. 13, 67071, Ludwigshafen, Germany
| | - E Gazyakan
- BG Trauma Center Ludwigshafen, Department for Hand-, Plastic- and Reconstructive Surgery, University of Heidelberg, Ludwig-Guttmann-Str. 13, 67071, Ludwigshafen, Germany
| | - C Hirche
- BG Trauma Center Ludwigshafen, Department for Hand-, Plastic- and Reconstructive Surgery, University of Heidelberg, Ludwig-Guttmann-Str. 13, 67071, Ludwigshafen, Germany
| | - U Kneser
- BG Trauma Center Ludwigshafen, Department for Hand-, Plastic- and Reconstructive Surgery, University of Heidelberg, Ludwig-Guttmann-Str. 13, 67071, Ludwigshafen, Germany
| | - S Fischer
- BG Trauma Center Ludwigshafen, Department for Hand-, Plastic- and Reconstructive Surgery, University of Heidelberg, Ludwig-Guttmann-Str. 13, 67071, Ludwigshafen, Germany.
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Lee SHS, Chang H, Kim JH, Kim HJ, Choi JS, Chung S, Woo HN, Lee KJ, Park K, Lee JY, Lee H. Inhibition of mTOR via an AAV-Delivered shRNA Tested in a Rat OIR Model as a Potential Antiangiogenic Gene Therapy. Invest Ophthalmol Vis Sci 2020; 61:45. [PMID: 32106292 PMCID: PMC7329967 DOI: 10.1167/iovs.61.2.45] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
Purpose Recent studies have shown that inhibitors of the mechanistic target of rapamycin (mTOR) play important roles in proliferating endothelial cells within the retinal vasculature. Here we explore the effects of inhibiting mTOR as a potential gene therapeutic against pathological retinal angiogenesis in a rat model of oxygen-induced retinopathy (OIR). Methods Sprague-Dawley pups were used to generate the OIR model, with a recombinant adeno-associated virus expressing an shRNA (rAAV2-shmTOR-GFP) being administered via intravitreal injection on returning the rats to normoxia, with appropriate controls. Immunohistochemistry and TUNEL assays, as well as fluorescein angiography, were performed on transverse retinal sections and flat mounts, respectively, to determine the in vivo effects of mTOR inhibition. Results Compared with normal control rats, as well as OIR model animals that were either untreated (20.95 ± 6.85), mock-treated (14.50 ± 2.47), or injected with a control short hairpin RNA (shRNA)-containing virus vector (16.64 ± 4.92), rAAV2-shmTOR-GFP (4.28 ± 2.86, P = 0.00103) treatment resulted in dramatically reduced neovascularization as a percentage of total retinal area. These results mirrored quantifications of retinal avascular area and vessel tortuosity, with rAAV2-shmTOR-GFP exhibiting significantly greater therapeutic efficacy than the other treatments. The virus vector was additionally shown to reduce inflammatory cell infiltration into retinal tissue and possess antiapoptotic properties, both these processes having been implicated in the pathophysiology of angiogenic retinal disorders. Conclusions Taken together, these results demonstrate the strong promise of rAAV2-shmTOR-GFP as an effective and convenient gene therapy for the treatment of neovascular retinal diseases.
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Eom JM, Choi JS, Bae J, Lee WM, Jung U. 2285 Laparoscopic Primary Repair after the Diaphragmatic Endometriosis Resection. J Minim Invasive Gynecol 2019. [DOI: 10.1016/j.jmig.2019.09.163] [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: 11/16/2022]
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Choi JS, Bae J, Lee WM, Jung US, Eom JM, Lee H. 2274 Laparoscopic Primary Repair of Duodenal Perforation after Laparoscopic Para-Aortic Lymphadenectomy. J Minim Invasive Gynecol 2019. [DOI: 10.1016/j.jmig.2019.09.095] [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: 10/25/2022]
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Eom JM, Choi JS, Bae J, Lee WM, Jung US, Lee H. 2303 Comparison of Laparoscopy and Laparotomy in Primary Cytoreductive Surgery of Advanced Epithelial Ovarian Cancer. J Minim Invasive Gynecol 2019. [DOI: 10.1016/j.jmig.2019.09.483] [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: 11/15/2022]
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Eom JM, Choi JS, Bae J, Lee WM, Jung US. 2298 Immediate Laparoscopic Nontransvesical Repair with Omental Interposition for Vesicovaginal Fistula Developing after Total Laparoscopic Hysterectomy. J Minim Invasive Gynecol 2019. [DOI: 10.1016/j.jmig.2019.09.107] [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: 11/15/2022]
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Choi JS, Bae J, Lee WM, Jung U, Eom JM, Lee H. 2219 Laparoscopic Resection of Bulky Para-Aortic Lymph Node Metastasis. J Minim Invasive Gynecol 2019. [DOI: 10.1016/j.jmig.2019.09.161] [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: 11/24/2022]
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13
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Lee SHS, Chang H, Kim HJ, Choi JS, Kim J, Kim JH, Woo HN, Nah SK, Jung SJ, Lee JY, Park K, Park TK, Lee H. Effects of Stuffer DNA on the Suppression of Choroidal Neovascularization by a rAAV Expressing a mTOR-Inhibiting shRNA. Mol Ther Methods Clin Dev 2019; 14:171-179. [PMID: 31380463 PMCID: PMC6661460 DOI: 10.1016/j.omtm.2019.06.004] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/26/2019] [Accepted: 06/21/2019] [Indexed: 11/19/2022]
Abstract
Choroidal neovascularization (CNV) is the defining characteristic of the wet subtype of age-related macular degeneration (AMD), which is a rapidly growing global health problem. Previously, we had demonstrated the therapeutic potential of gene therapy against CNV using short hairpin RNA (shRNA) delivered via recombinant adeno-associated virus (rAAV), which abrogates mammalian-to-mechanistic (mTOR) activity in a novel manner by simultaneously inhibiting both mTOR complexes. Both the target and use of gene therapy represent a novel treatment modality against AMD. Here, the xenogeneic GFP gene used as a reporter in previous studies was removed from the virus vector to further develop the therapeutic for clinical trials. Instead, a stuffer DNA derived from the 3′ UTR of the human UBE3A gene was used to ensure optimal viral genome size for efficient rAAV assembly. The virus vector containing the stuffer DNA, rAAV2-shmTOR-SD, positively compares to one encoding the shRNA and a GFP expression cassette in terms of reducing CNV in a laser-induced mouse model, as determined by fundus fluorescein angiography. These results were confirmed via immunohistochemistry using anti-CD31, while a TUNEL assay showed that rAAV2-shmTOR-SD possesses anti-apoptotic properties as well. The qualities exhibited by rAAV2-shmTOR-SD demonstrate its potential as a human gene therapeutic for the treatment of wet AMD.
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Affiliation(s)
- Steven Hyun Seung Lee
- Department of Microbiology, College of Medicine, University of Ulsan, Seoul 05505, Korea
- Bio-Medical Institute of Technology, College of Medicine, University of Ulsan, Seoul 05505, Korea
| | - HeeSoon Chang
- CuroGene Life Sciences Co., Ltd., Cheongju 28578, Korea
| | - Hee Jong Kim
- CuroGene Life Sciences Co., Ltd., Cheongju 28578, Korea
| | - Jun-Sub Choi
- CuroGene Life Sciences Co., Ltd., Cheongju 28578, Korea
| | - Jin Kim
- CuroGene Life Sciences Co., Ltd., Cheongju 28578, Korea
| | - Ji Hyun Kim
- Department of Microbiology, College of Medicine, University of Ulsan, Seoul 05505, Korea
- Bio-Medical Institute of Technology, College of Medicine, University of Ulsan, Seoul 05505, Korea
| | - Ha-Na Woo
- Department of Microbiology, College of Medicine, University of Ulsan, Seoul 05505, Korea
- Bio-Medical Institute of Technology, College of Medicine, University of Ulsan, Seoul 05505, Korea
| | - Seung Kwan Nah
- Department of Ophthalmology, Soonchunhyang University Hospital Bucheon, Bucheon 14584, Korea
| | - Sang Joon Jung
- Department of Ophthalmology, Soonchunhyang University Hospital Bucheon, Bucheon 14584, Korea
| | - Joo Yong Lee
- Bio-Medical Institute of Technology, College of Medicine, University of Ulsan, Seoul 05505, Korea
- Department of Ophthalmology, University of Ulsan, College of Medicine, Seoul 05505, Korea
- Asan Medical Center, University of Ulsan, College of Medicine, Seoul 05505, Korea
| | - Keerang Park
- Department of Biopharmacy, Chungbuk Health & Science University, Cheongju 28150, Korea
| | - Tae Kwann Park
- Department of Ophthalmology, Soonchunhyang University Hospital Bucheon, Bucheon 14584, Korea
- Department of Ophthalmology, College of Medicine, Soonchunhyang University, Cheonan 31151, Korea
- Corresponding author: Tae Kwann Park, MD, PhD, Department of Ophthalmology, Soonchunhyang University Hospital Bucheon, 170, Jomaru-ro, Wonmi-gu, Bucheon 14584, Korea.
| | - Heuiran Lee
- Department of Microbiology, College of Medicine, University of Ulsan, Seoul 05505, Korea
- Bio-Medical Institute of Technology, College of Medicine, University of Ulsan, Seoul 05505, Korea
- Corresponding author: Heuiran Lee, PhD, Department of Microbiology and Bio-Medical Institute of Technology, College of Medicine, University of Ulsan, 88 Olympic-ro 43-gil Songpa-gu, Seoul 05505, Korea.
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14
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Lee KH, Han SH, Yong D, Paik HC, Lee JG, Kim MS, Joo DJ, Choi JS, Kim SI, Kim YS, Park MS, Kim SY, Yoon YN, Kang S, Jeong SJ, Choi JY, Song YG, Kim JM. Acquisition of Carbapenemase-Producing Enterobacteriaceae in Solid Organ Transplantation Recipients. Transplant Proc 2019; 50:3748-3755. [PMID: 30577266 DOI: 10.1016/j.transproceed.2018.01.058] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2017] [Accepted: 01/23/2018] [Indexed: 02/07/2023]
Abstract
BACKGROUND Carbapenemase-producing Enterobacteriaceae (CPE) can lead to life-threatening outcomes with rapid spread of the carbapenemase gene in solid organ transplantation (SOT) recipients because of limitations of available antibiotics. We examined the characteristics and importance of CPE acquisition in SOT recipients with large numbers of CPE isolates. METHODS Between November 2015 and October 2016, 584 CPE isolates were found in 37 recipients and verified by carbapenemase gene multiplex polymerase chain reaction (PCR). One hundred recipients with at least 2 negative results in carbapenemase PCR for stool surveillance and no CPE isolates in clinical samples were retrospectively included. RESULTS Most CPE isolates were Klebsiella pneumoniae carbapenemase (KPC)-producing K. pneumoniae (546, 93.5%). The most frequent transplantation organ was lung (43.3%), and the most common sample with CPE isolates other than stool was respiratory tract (22.6%). The median time between SOT and first CPE acquisition was 7 days. All-cause mortality was significantly higher in recipients with CPE than in those without CPE (24.3% vs 10.0%; P = .03). In multivariate regression analysis, stool colonization of vancomycin-resistant Enterococci and/or Clostridium difficile during 30 days before SOT (odds ratio [OR], 3.28; 95% CI, 1.24-8.68; P = .02), lung transplantation (OR, 4.50; 95% CI, 1.19-17.03; P = .03), and intensive care unit stay ≥2 weeks (OR, 6.21; 95% CI, 1.72-22.45; P = .005) were associated with acquisition of CPE. CONCLUSIONS Early posttransplantation CPE acquisition may affect the clinical outcome of SOT recipients. Careful screening for CPE during the early posttransplantation period would be meaningful in recipients with risk factors.
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Affiliation(s)
- K H Lee
- Division of Infectious Disease, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - S H Han
- Division of Infectious Disease, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea.
| | - D Yong
- Department of Laboratory Medicine and Research Institute of Bacterial Resistance, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - H C Paik
- Department of Thoracic and Cardiovascular Surgery, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - J G Lee
- Department of Thoracic and Cardiovascular Surgery, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - M S Kim
- Department of Transplantation Surgery and Research Institute for Transplantation, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - D J Joo
- Department of Transplantation Surgery and Research Institute for Transplantation, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - J S Choi
- Department of Transplantation Surgery and Research Institute for Transplantation, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - S I Kim
- Department of Transplantation Surgery and Research Institute for Transplantation, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Y S Kim
- Department of Transplantation Surgery and Research Institute for Transplantation, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - M S Park
- Division of Pulmonology and Critical Care Medicine, Department of Internal Medicine, Institute of Chest Diseases, Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - S Y Kim
- Division of Pulmonology and Critical Care Medicine, Department of Internal Medicine, Institute of Chest Diseases, Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Y N Yoon
- Department of Cardiothoracic Surgery, Cardiovascular Center, Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - S Kang
- Division of Cardiology, Department of Internal Medicine, Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - S J Jeong
- Division of Infectious Disease, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - J Y Choi
- Division of Infectious Disease, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Y G Song
- Division of Infectious Disease, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - J M Kim
- Division of Infectious Disease, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
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15
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Jang KH, Do YJ, Koo TS, Choi JS, Song EJ, Hwang Y, Bae HJ, Lee JH, Kim E. Protective effect of RIPK1-inhibitory compound in in vivo models for retinal degenerative disease. Exp Eye Res 2018; 180:8-17. [PMID: 30500363 DOI: 10.1016/j.exer.2018.11.026] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2018] [Revised: 11/04/2018] [Accepted: 11/26/2018] [Indexed: 12/16/2022]
Abstract
Receptor interacting protein kinase 1 (RIPK1) plays a key role in necroptosis, which is a type of programmed necrosis that is involved in ocular diseases, including glaucoma and dry age-related macular degeneration (AMD). We previously introduced RIPK1-inhibitory compound (RIC), which has biochemical characteristics and a mode of action that are distinct from those of the prototype RIPK1 inhibitor necrostatin-1. The intraperitoneal administration of RIC exerts a protective effect on retinal ganglion cells against a glaucomatous insult. In this study, we examined the protective effect of RIC on retinal pigment epithelium (RPE) against sodium iodate (SI) insult, which is associated with dry AMD pathogenesis. The eye drop administration of RIC that reached on the retina prevented RPE loss in SI-induced retinal degeneration. RIC consistently demonstrated retinal protection in the funduscopy and electroretinogram analyses in SI-injected rabbits and iodoacetic acid-treated mini-pigs. Moreover, the in vivo protective effects of RIC were superior to those of ACU-4429 and doxycycline, which are other medications investigated in clinical trials for the treatment of dry AMD, and RIC did not induce retinal toxicity following topical administration in rats. Collectively, RIC displayed excellent retinal penetration and prevented retinal degeneration in the pathogenesis of dry AMD with a high in vivo efficacy.
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Affiliation(s)
- Ki-Hong Jang
- Department of Biological Sciences, Chungnam National University, Daejeon, South Korea
| | - Yun-Ju Do
- Department of Biological Sciences, Chungnam National University, Daejeon, South Korea
| | - Tae-Sung Koo
- Graduate School of New Drug Discovery and Development, Chungnam National University, Daejeon, South Korea
| | - Jun-Sub Choi
- Catholic Institute for Visual Science, The Catholic University of Korea, #505 Banpo-dong, Seocho-gu, Seoul, South Korea
| | - Eun Ju Song
- Department of Drug Development, Technology Research Institute, Ensol Biosciences Inc., Daejeon, South Korea
| | - Yeseong Hwang
- Department of Biological Sciences, Chungnam National University, Daejeon, South Korea
| | - Hyun Ju Bae
- Kukjepharma R&D Center, Sanseong-ro 47, Ansan, Gyeonggi-do, South Korea
| | - Ju-Hee Lee
- Kukjepharma R&D Center, Sanseong-ro 47, Ansan, Gyeonggi-do, South Korea
| | - Eunhee Kim
- Department of Biological Sciences, Chungnam National University, Daejeon, South Korea.
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16
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Lee SHS, Kim HJ, Shin OK, Choi JS, Kim J, Cho YH, Ha J, Park TK, Lee JY, Park K, Lee H. Intravitreal Injection of AAV Expressing Soluble VEGF Receptor-1 Variant Induces Anti-VEGF Activity and Suppresses Choroidal Neovascularization. ACTA ACUST UNITED AC 2018; 59:5398-5407. [DOI: 10.1167/iovs.18-24926] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Affiliation(s)
- Steven Hyun Seung Lee
- Department of Microbiology, University of Ulsan College of Medicine, Seoul, Korea
- Bio-Medical Institute of Technology, University of Ulsan College of Medicine, Seoul, Korea
| | - Hee Jong Kim
- CuroGene Life Sciences Co., Ltd., Cheongju, Korea
| | - Oh Kyu Shin
- Department of Microbiology, University of Ulsan College of Medicine, Seoul, Korea
- CuroGene Life Sciences Co., Ltd., Cheongju, Korea
| | - Jun-Sub Choi
- CuroGene Life Sciences Co., Ltd., Cheongju, Korea
| | - Jin Kim
- CuroGene Life Sciences Co., Ltd., Cheongju, Korea
| | - Young-Hwa Cho
- Department of Biopharmacy, Chungbuk Health & Science University, Cheongju, Korea
| | - Joohun Ha
- Department of Biochemistry and Molecular Biology, Graduate School, Kyung Hee University, Seoul, Korea
| | - Tae Kwann Park
- Department of Ophthalmology, Soonchunhyang University Hospital Bucheon, Bucheon, Korea
- Department of Ophthalmology, College of Medicine, Soonchunhyang University, Cheonan, Korea
| | - Joo Yong Lee
- Bio-Medical Institute of Technology, University of Ulsan College of Medicine, Seoul, Korea
- Department of Ophthalmology, University of Ulsan College of Medicine, Seoul, Korea
- Asan Medical Center, Seoul, Korea
| | - Keerang Park
- Department of Biopharmacy, Chungbuk Health & Science University, Cheongju, Korea
| | - Heuiran Lee
- Department of Microbiology, University of Ulsan College of Medicine, Seoul, Korea
- Bio-Medical Institute of Technology, University of Ulsan College of Medicine, Seoul, Korea
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17
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Oh S, Seo M, Choi JS, Joo CK, Lee SK. MiR-199a/b-5p Inhibits Lymphangiogenesis by Targeting Discoidin Domain Receptor 1 in Corneal Injury. Mol Cells 2018; 41:93-102. [PMID: 29429150 PMCID: PMC5824028 DOI: 10.14348/molcells.2018.2163] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2017] [Revised: 11/02/2017] [Accepted: 11/10/2017] [Indexed: 12/31/2022] Open
Abstract
Discoidin domain receptor 1 (DDR1) is involved in tumorigenesis and angiogenesis. However, its role in lymphangiogenesis has been unknown. Here, we tested whether downregulation of DDR1 expression by miR-199a/b can suppress lymphangiogenesis. We also aimed to identify miRNA target site(s) in the 3' untranslated region (UTR) of DDR1. Transfection with miR-199a/b-5p mimics reduced expression of DDR1 and tube formation in primary human dermal lymphatic endothelial cells, whereas miR-199a/b-5p inhibitors showed the opposite effects. Critically, injection of miR-199a/b-5p mimics suppressed DDR1 expression and lymphangiogenesis in a corneal alkali-burn rat model. The three well-conserved seed matched sites for miR-199a/b-5p in the DDR1 3'-UTR were targeted, and miRNA binding to at least two sites was required for DDR1 inhibition. Our data suggest that DDR1 promotes enhanced lymphangiogenesis during eye injury, and miR-199a/b-5p suppresses this activity by inhibiting DDR1 expression. Thus, this miRNA may be useful for the treatment of lymphangiogenesis-related eye diseases.
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Affiliation(s)
- Sooeun Oh
- Department of Medical Lifescience, The Catholic University of Korea, Seoul 06591,
Korea
| | - Minkoo Seo
- Department of Medical Lifescience, The Catholic University of Korea, Seoul 06591,
Korea
| | - Jun-Sub Choi
- Catholic Institute for Visual Science, College of Medicine, The Catholic University of Korea, Seoul 06591,
Korea
| | - Choun-Ki Joo
- Catholic Institute for Visual Science, College of Medicine, The Catholic University of Korea, Seoul 06591,
Korea
- Department of Ophthalmology and Visual Science, Seoul St. Mary’s Hospital, Seoul 06591,
Korea
| | - Suk Kyeong Lee
- Department of Medical Lifescience, The Catholic University of Korea, Seoul 06591,
Korea
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18
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Kang MJ, Lee YE, Choi JS, Joo CK. Ideal parameters for femto-second laser-assisted anterior capsulotomy: Animal studies. PLoS One 2018; 13:e0190858. [PMID: 29304077 PMCID: PMC5755902 DOI: 10.1371/journal.pone.0190858] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2017] [Accepted: 12/21/2017] [Indexed: 11/18/2022] Open
Abstract
In femtosecond laser-assisted cataract surgery, the parameter such as horizontal spot spacing and energy level can be adjusted. Although there have been several studies reported on various laser systems, showing the effects of varying energy levels and horizontal spot spacing on lens capsulotomy cut edges, none have been reported on the Catalys laser system (Abbott Medical Optics, Inc., Santa Ana, CA). The aim of this study is to evaluate, using scanning electron microscopy (SEM), the quality of the cut edges of the laser lens capsulotomy obtained using the Catalys Laser System, using different horizontal spot spacing and energy levels, and to determine the ideal parameters based on SEM results. Fifty rabbit capsulorhexis specimens from a femtosecond laser with different spot spacing and energy settings were divided into five groups randomly. Spot spacing was 3 um and laser pulse energy was 4 uJ in group 1. The respective values were 5 um and 2 uJ in group 2, 5 um and 4 uJ in group 3, 5 um and 6 uJ in group 4, and 7 um and 4 uJ in group 5. All samples were evaluated using SEM to compare the number of tags per capsulotomy and the laser emission time. Group 1 had a significantly lower tag formation than groups 3 and 5 (P = 0.042 and 0.021, respectively). Although the laser emission time increased about 1.5 sec as the spot spacing increased from 3 to 7 um, the quality of the cut was smoother in group 1 because of overlapping effect of photodisruption cavities. There was no significant difference between groups 2, 3 and 4 at different laser energy settings. In an ex-vivo study, samples from an energy setting of 10 uJ showed increased irregularity and damage. The degree of irregularity was higher at increasing spot spacing and laser energy settings, with abundant tag formation. Dense spot spacing with low-energy settings provide a better cut quality, which is probably correlated with the reduction in anterior capsular tear complications.
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Affiliation(s)
- Min-Ji Kang
- Department of Ophthalmology and Catholic Institute for Visual Science, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
- Seoul St. Mary’s Hospital, Seoul, Republic of Korea
| | - Yong-Eun Lee
- Department of Ophthalmology and Catholic Institute for Visual Science, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
- Seoul St. Mary’s Hospital, Seoul, Republic of Korea
| | - Jun-Sub Choi
- Department of Ophthalmology and Catholic Institute for Visual Science, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Choun-Ki Joo
- Department of Ophthalmology and Catholic Institute for Visual Science, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
- Seoul St. Mary’s Hospital, Seoul, Republic of Korea
- * E-mail:
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Abstract
BACKGROUND Poor oral health is associated with a reduced quality of life and serious illnesses. Consequently, nurses need to be more aware of oral health to improve the general health of residents in care. AIM To evaluate and compare oral health behaviours and levels of salivary haemoglobin and dental biofilm acidogenicity, which can be used to evaluate oral disease activity, between residents and community dwellers in South Korea. METHODS This cross-sectional study included 133 participants: 64 residents and 69 community dwellers. All participants completed a questionnaire and tests to measure their salivary haemoglobin and dental biofilm acidogenicity. RESULTS A higher percentage of community dwellers than of residents brushed their teeth three times a day, cleaned their tongue, used interdental cleaning devices and had visited a dental clinic within 1 year. The levels of salivary haemoglobin and dental biofilm acidogenicity tended to be higher in residents than in community dwellers. CONCLUSION Residents showed poorer oral health behaviours and higher levels of gingival bleeding and acid production by oral bacteria than did community dwellers. IMPLICATIONS FOR NURSING PRACTICE Nursing staff should enhance their monitoring of oral hygiene status and provide quality oral care to residents through cooperation with dental professionals. IMPLICATIONS FOR NURSING AND HEALTH POLICY Policymakers should be aware that oral health is an essential component of improving general health and well-being and therefore strive to develop policies to promote oral care services provided to residents. Nursing policies, such as mandating oral care and hands-on training in oral care for nursing staff, are important. We also suggest that factors related to oral care be added to the establishment or accreditation standards of care facilities.
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Affiliation(s)
- J S Choi
- College of Health Science, Gachon University, Incheon, Korea
| | - Y J Yi
- College of Nursing, Gachon University, Incheon, Korea
| | - L R Donnelly
- Faculty of Dentistry, University of British Columbia, Vancouver, BC, Canada
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20
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Kim HK, Choi JS, Lee SW, Joo CK, Joe YA. A Novel Peptide Derived From Tissue-Type Plasminogen Activator Potently Inhibits Angiogenesis and Corneal Neovascularization. J Cell Biochem 2017; 118:1132-1143. [DOI: 10.1002/jcb.25732] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2016] [Accepted: 09/09/2016] [Indexed: 11/11/2022]
Affiliation(s)
- Hyun-Kyung Kim
- Cancer Research Institute; College of Medicine; The Catholic University of Korea; Seoul Republic of Korea
- Department of Medical Lifescience; College of Medicine; The Catholic University of Korea; Seoul Republic of Korea
- Cancer Evolution Research Center; College of Medicine; The Catholic University of Korea; Seoul Republic of Korea
| | - Jun-Sub Choi
- Department of Ophthalmology and Visual Science; College of Medicine; The Catholic University of Korea; Seoul Republic of Korea
| | - Seung Woo Lee
- Cancer Research Institute; College of Medicine; The Catholic University of Korea; Seoul Republic of Korea
- Department of Medical Lifescience; College of Medicine; The Catholic University of Korea; Seoul Republic of Korea
- Cancer Evolution Research Center; College of Medicine; The Catholic University of Korea; Seoul Republic of Korea
| | - Choun-Ki Joo
- Department of Ophthalmology and Visual Science; College of Medicine; The Catholic University of Korea; Seoul Republic of Korea
| | - Young Ae Joe
- Cancer Research Institute; College of Medicine; The Catholic University of Korea; Seoul Republic of Korea
- Department of Medical Lifescience; College of Medicine; The Catholic University of Korea; Seoul Republic of Korea
- Cancer Evolution Research Center; College of Medicine; The Catholic University of Korea; Seoul Republic of Korea
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Abstract
Radiation treatment often leads to irreversible damage to normal salivary glands (SGs) because of their proximity to head and neck cancers. Optimization of the in vitro model of irradiation (IR)-induced SG damage is warranted to investigate pathophysiology and monitor treatment outcome. Here, we present an organotypic spheroid culture model to investigate the impact of IR on SGs and the mechanisms underlying IR-induced structural and functional changes. Human parotid epithelial cells were obtained from human parotid glands and plated on either plastic plates or Matrigel. A number of 3-dimensional (3D) spheroids were assembled on Matrigel. After IR at 10 and 20 Gy, morphologic changes in cells in 2D monolayers and 3D spheroids were observed. As the structural integrity of the 3D spheroids was destroyed by IR, the expression levels of salivary epithelial and structural proteins and genes decreased proportionally with radiation dosage. Furthermore, the spheroid culture allowed better measurement of functional alterations following IR relative to the monolayer culture, in which IR-inflicted spheroids exhibited a loss of acinar-specific cellular functions that enable Ca2+ influx or secretion of α-amylase in response to cholinergic or β-adrenergic agonists. p53-mediated apoptotic cell death was observed under both culture conditions, and its downstream signals increased, such as p53 upregulated modulator of apoptosis (PUMA), Bax, cytochrome c, caspase 9, and caspase 3. These results suggest that the organotypic spheroid culture could provide a useful alternative model for exploration of radiobiology and mode of action of new therapies for prevention of radiation-induced salivary hypofunction.
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Affiliation(s)
- H S Shin
- 1 Department of Otorhinolaryngology-Head and Neck Surgery, College of Medicine, Inha University, Incheon, Republic of Korea.,2 Translational Research Center, College of Medicine, Inha University, Incheon, Republic of Korea
| | - H Y An
- 1 Department of Otorhinolaryngology-Head and Neck Surgery, College of Medicine, Inha University, Incheon, Republic of Korea.,2 Translational Research Center, College of Medicine, Inha University, Incheon, Republic of Korea
| | - J S Choi
- 1 Department of Otorhinolaryngology-Head and Neck Surgery, College of Medicine, Inha University, Incheon, Republic of Korea.,2 Translational Research Center, College of Medicine, Inha University, Incheon, Republic of Korea
| | - H J Kim
- 3 Department of Radiation Oncology, College of Medicine, Inha University, Incheon, Republic of Korea
| | - J Y Lim
- 1 Department of Otorhinolaryngology-Head and Neck Surgery, College of Medicine, Inha University, Incheon, Republic of Korea.,2 Translational Research Center, College of Medicine, Inha University, Incheon, Republic of Korea
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22
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Han H, Son S, Son S, Kim N, Yhee JY, Lee JH, Choi JS, Joo CK, Lee H, Lee D, Kim WJ, Kim SH, Kwon IC, Kim H, Kim K. Macromol. Biosci. 11/2016. Macromol Biosci 2016. [DOI: 10.1002/mabi.201670041] [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] [Indexed: 11/09/2022]
Affiliation(s)
- Hyounkoo Han
- Center for Theragnosis; Biomedical Research Institute Korea Institute of Science and Technology (KIST); Hwarangno 14-gil 6 Seongbuk-gu Seoul 136-791 South Korea
- Department of Chemical and Biomolecular Engineering; Sogang University; Shinsu-dong Mapo-gu Seoul 121-742 South Korea
| | - Sohee Son
- Center for Theragnosis; Biomedical Research Institute Korea Institute of Science and Technology (KIST); Hwarangno 14-gil 6 Seongbuk-gu Seoul 136-791 South Korea
| | - Sejin Son
- Center for Theragnosis; Biomedical Research Institute Korea Institute of Science and Technology (KIST); Hwarangno 14-gil 6 Seongbuk-gu Seoul 136-791 South Korea
| | - Namho Kim
- Center for Theragnosis; Biomedical Research Institute Korea Institute of Science and Technology (KIST); Hwarangno 14-gil 6 Seongbuk-gu Seoul 136-791 South Korea
| | - Ji Young Yhee
- Center for Theragnosis; Biomedical Research Institute Korea Institute of Science and Technology (KIST); Hwarangno 14-gil 6 Seongbuk-gu Seoul 136-791 South Korea
| | - Jae Hyeop Lee
- Center for Theragnosis; Biomedical Research Institute Korea Institute of Science and Technology (KIST); Hwarangno 14-gil 6 Seongbuk-gu Seoul 136-791 South Korea
- Department of Chemical and Biomolecular Engineering; Sogang University; Shinsu-dong Mapo-gu Seoul 121-742 South Korea
| | - Jun-Sub Choi
- Department of Ophthalmology and Visual Science; Seoul St. Mary's Hospital; College of Medicine; The Catholic University of Korea; 505, Banpo-dong Seocho-gu Seoul 137-040 South Korea
| | - Choun-Ki Joo
- Department of Ophthalmology and Visual Science; Seoul St. Mary's Hospital; College of Medicine; The Catholic University of Korea; 505, Banpo-dong Seocho-gu Seoul 137-040 South Korea
| | - Hohyeon Lee
- Department of Chemical and Biomolecular Engineering; Sogang University; Shinsu-dong Mapo-gu Seoul 121-742 South Korea
| | - Duhwan Lee
- Center for Self-Assembly and Complexity; Institute for Basic Science (IBS); Pohang 790-784 South Korea
- Department of Chemistry Polymer Research Institute; Pohang University of Science and Technology (POSTECH); Pohang 790-784 South Korea
| | - Won Jong Kim
- Center for Self-Assembly and Complexity; Institute for Basic Science (IBS); Pohang 790-784 South Korea
- Department of Chemistry Polymer Research Institute; Pohang University of Science and Technology (POSTECH); Pohang 790-784 South Korea
| | - Sun Hwa Kim
- Center for Theragnosis; Biomedical Research Institute Korea Institute of Science and Technology (KIST); Hwarangno 14-gil 6 Seongbuk-gu Seoul 136-791 South Korea
| | - Ick Chan Kwon
- Center for Theragnosis; Biomedical Research Institute Korea Institute of Science and Technology (KIST); Hwarangno 14-gil 6 Seongbuk-gu Seoul 136-791 South Korea
| | - Hyuncheol Kim
- Department of Chemical and Biomolecular Engineering; Sogang University; Shinsu-dong Mapo-gu Seoul 121-742 South Korea
| | - Kwangmeyung Kim
- Center for Theragnosis; Biomedical Research Institute Korea Institute of Science and Technology (KIST); Hwarangno 14-gil 6 Seongbuk-gu Seoul 136-791 South Korea
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Keum JH, Choi JS, Eom JM, Bae J, Jung US, Lee WM, Koh AR. Laparoscopic Gonadal Resection of Swyer Syndrome. J Minim Invasive Gynecol 2016. [DOI: 10.1016/j.jmig.2016.08.409] [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: 11/30/2022]
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Choi JS, Bae J, Jung US, Lee WM, Eom JM, Koh AR. Laparoscopic Primary Optimal Debulking Surgery in Advanced Epithelial Ovarian Cancer. J Minim Invasive Gynecol 2016. [DOI: 10.1016/j.jmig.2016.08.375] [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: 12/01/2022]
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Choe YS, Choi JS, Hoh JK, Bae J, Lee WM, Eom JM. Laparoscopic Transabdominal Cervico-Isthmic Cerclage (TCIC) at Gestational Age 12 Weeks. J Minim Invasive Gynecol 2016. [DOI: 10.1016/j.jmig.2016.08.342] [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: 11/24/2022]
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26
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Lee WM, Choi JS, Bae J, Jung US, Koh AR, Ko JH. Can Morcellation Really Worsen the Prognosis of Unexpected Uterine Malignancy? J Minim Invasive Gynecol 2016. [DOI: 10.1016/j.jmig.2016.08.755] [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: 10/20/2022]
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Eom JM, Choi JS, Bae J, Jung US, Lee WM, Koh AR. Laparoscopic Radical Parametrectomy for Cervical Cancer IB1 in Women After Prior Hysterectomy. J Minim Invasive Gynecol 2016. [DOI: 10.1016/j.jmig.2016.08.510] [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: 11/25/2022]
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Jung US, Choi JS, Bae J, Lee WM, Eom JM, Koh AR, Ko JH. Learning Curve for Systemic Laparoscopic Para-Aortic Lymphadenectomy Up to the Left Renal Vein Level for Gynecologic Cancers: Assessment After 324 Consecutive Patients. J Minim Invasive Gynecol 2016. [DOI: 10.1016/j.jmig.2016.08.252] [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: 11/24/2022]
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Lee WM, Choi JS, Bae J, Koh AR, Jung US, Ko JH. Laparoscopic Restaging Surgery in Patients With Unexpected Uterine Cancer. J Minim Invasive Gynecol 2016; 22:S228. [PMID: 27679115 DOI: 10.1016/j.jmig.2015.08.804] [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] [Indexed: 10/22/2022]
Affiliation(s)
- W M Lee
- Division of Gynecologic Oncology and Gynecologic Minimally Invasive Surgery, Department of Obstetrics and Gynecology, Hanyang University College of Medicine, Seoul, Republic of Korea
| | - J S Choi
- Division of Gynecologic Oncology and Gynecologic Minimally Invasive Surgery, Department of Obstetrics and Gynecology, Hanyang University College of Medicine, Seoul, Republic of Korea
| | - J Bae
- Division of Gynecologic Oncology and Gynecologic Minimally Invasive Surgery, Department of Obstetrics and Gynecology, Hanyang University College of Medicine, Seoul, Republic of Korea
| | - A R Koh
- Division of Gynecologic Oncology and Gynecologic Minimally Invasive Surgery, Department of Obstetrics and Gynecology, Hanyang University College of Medicine, Seoul, Republic of Korea
| | - U S Jung
- Department of Obstetrics and Gynecology, Hallym University Hangang Sacred Heart Hospital, Seoul, Republic of Korea
| | - J H Ko
- Department of Obstetrics and Gynecology, Kangwon National University Hospital, Gangwon-Do, Republic of Korea
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Koh AR, Choi JS, Bae J, Lee WM, Ko JH, Jung US. Laparoscopic Fertility-Saving Staging Surgery for Woman With Huge Pelvic Mass. J Minim Invasive Gynecol 2016; 22:S129. [PMID: 27678694 DOI: 10.1016/j.jmig.2015.08.403] [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] [Indexed: 11/19/2022]
Affiliation(s)
- A R Koh
- Hanyang University College of Medicine, Seoul, Korea
| | - J S Choi
- Hanyang University College of Medicine, Seoul, Korea
| | - J Bae
- Hanyang University College of Medicine, Seoul, Korea
| | - W M Lee
- Hanyang University College of Medicine, Seoul, Korea
| | - J H Ko
- Kangwon National University Hospital, Chuncheon-Si, Gangwon-Do, Korea
| | - U S Jung
- Hallym University Sacred Hangang Heart Hospital, Seoul, Korea
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Choi JS, Jin SK, Jeong YH, Jung YC, Jung JH, Shim KS, Choi YI. Relationships between Single Nucleotide Polymorphism Markers and Meat Quality Traits of Duroc Breeding Stocks in Korea. Asian-Australas J Anim Sci 2016; 29:1229-38. [PMID: 27507182 PMCID: PMC5003982 DOI: 10.5713/ajas.16.0158] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [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: 02/29/2016] [Revised: 06/09/2016] [Accepted: 08/10/2016] [Indexed: 11/27/2022]
Abstract
This study was conducted to determine the relationships of five intragenic single nucleotide polymorphism (SNP) markers (protein kinase adenosine monophosphate-activated γ3 subunit [PRKAG3], fatty acid synthase [FASN], calpastatin [CAST], high mobility group AT-hook 1 [HMGA1], and melanocortin-4 receptor [MC4R]) and meat quality traits of Duroc breeding stocks in Korea. A total of 200 purebred Duroc gilts from 8 sires and 40 dams at 4 pig breeding farms from 2010 to 2011 reaching market weight (110 kg) were slaughtered and their carcasses were chilled overnight. Longissimus dorsi muscles were removed from the carcass after 24 h of slaughter and used to determine pork properties including carcass weight, backfat thickness, moisture, intramuscular fat, pH24h, shear force, redness, texture, and fatty acid composition. The PRKAG3, FASN, CAST, and MC4R gene SNPs were significantly associated with the meat quality traits (p<0.003). The meats of PRKAG3 (A 0.024/G 0.976) AA genotype had higher pH, redness and texture than those from PRKAG3 GG genotype. Meats of FASN (C 0.301/A 0.699) AA genotype had higher backfat thickness, texture, stearic acid, oleic acid and polyunsaturated fatty acid than FASN CC genotype. While the carcasses of CAST (A 0.373/G 0.627) AA genotype had thicker backfat, and lower shear force, palmitoleic acid and oleic acid content, they had higher stearic acid content than those from the CAST GG genotype. The MC4R (G 0.208/A 0.792) AA genotype were involved in increasing backfat thickness, carcass weight, moisture and saturated fatty acid content, and decreasing unsaturated fatty acid content in Duroc meat. These results indicated that the five SNP markers tested can be a help to select Duroc breed to improve carcass and meat quality properties in crossbred pigs.
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Affiliation(s)
- J S Choi
- Department of Animal Science, Chungbuk National University, Cheongju 361-763, Korea.,Department of Animal Resources Technology and Swine Science & Technology Center, Gyeongnam National University of Science and Technology, Jinju 660-758, Korea
| | - S K Jin
- Department of Animal Resources Technology and Swine Science & Technology Center, Gyeongnam National University of Science and Technology, Jinju 660-758, Korea
| | - Y H Jeong
- Hanwoo Department, Korea Animal Improvement Association, Seoul 137-871, Korea
| | - Y C Jung
- Jung P&C Institute, Yongin 446-982, Korea
| | - J H Jung
- Jung P&C Institute, Yongin 446-982, Korea
| | - K S Shim
- Department of Animal Biotechnology, Chunbuk National University, Jeonju 561-756, Korea
| | - Y I Choi
- Department of Animal Science, Chungbuk National University, Cheongju 361-763, Korea
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Han H, Son S, Son S, Kim N, Yhee JY, Lee JH, Choi JS, Joo CK, Lee H, Lee D, Kim WJ, Kim SH, Kwon IC, Kim H, Kim K. Reducible Polyethylenimine Nanoparticles for Efficient siRNA Delivery in Corneal Neovascularization Therapy. Macromol Biosci 2016; 16:1583-1597. [DOI: 10.1002/mabi.201600051] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2016] [Revised: 07/14/2016] [Indexed: 11/07/2022]
Affiliation(s)
- Hyounkoo Han
- Center for Theragnosis; Biomedical Research Institute Korea Institute of Science and Technology (KIST); Hwarangno 14-gil 6 Seongbuk-gu Seoul 136-791 South Korea
- Department of Chemical and Biomolecular Engineering; Sogang University; Shinsu-dong Mapo-gu Seoul 121-742 South Korea
| | - Sohee Son
- Center for Theragnosis; Biomedical Research Institute Korea Institute of Science and Technology (KIST); Hwarangno 14-gil 6 Seongbuk-gu Seoul 136-791 South Korea
| | - Sejin Son
- Center for Theragnosis; Biomedical Research Institute Korea Institute of Science and Technology (KIST); Hwarangno 14-gil 6 Seongbuk-gu Seoul 136-791 South Korea
| | - Namho Kim
- Center for Theragnosis; Biomedical Research Institute Korea Institute of Science and Technology (KIST); Hwarangno 14-gil 6 Seongbuk-gu Seoul 136-791 South Korea
| | - Ji Young Yhee
- Center for Theragnosis; Biomedical Research Institute Korea Institute of Science and Technology (KIST); Hwarangno 14-gil 6 Seongbuk-gu Seoul 136-791 South Korea
| | - Jae Hyeop Lee
- Center for Theragnosis; Biomedical Research Institute Korea Institute of Science and Technology (KIST); Hwarangno 14-gil 6 Seongbuk-gu Seoul 136-791 South Korea
- Department of Chemical and Biomolecular Engineering; Sogang University; Shinsu-dong Mapo-gu Seoul 121-742 South Korea
| | - Jun-Sub Choi
- Department of Ophthalmology and Visual Science; Seoul St. Mary's Hospital; College of Medicine; The Catholic University of Korea; 505, Banpo-dong Seocho-gu Seoul 137-040 South Korea
| | - Choun-Ki Joo
- Department of Ophthalmology and Visual Science; Seoul St. Mary's Hospital; College of Medicine; The Catholic University of Korea; 505, Banpo-dong Seocho-gu Seoul 137-040 South Korea
| | - Hohyeon Lee
- Department of Chemical and Biomolecular Engineering; Sogang University; Shinsu-dong Mapo-gu Seoul 121-742 South Korea
| | - Duhwan Lee
- Center for Self-Assembly and Complexity; Institute for Basic Science (IBS); Pohang 790-784 South Korea
- Department of Chemistry Polymer Research Institute; Pohang University of Science and Technology (POSTECH); Pohang 790-784 South Korea
| | - Won Jong Kim
- Center for Self-Assembly and Complexity; Institute for Basic Science (IBS); Pohang 790-784 South Korea
- Department of Chemistry Polymer Research Institute; Pohang University of Science and Technology (POSTECH); Pohang 790-784 South Korea
| | - Sun Hwa Kim
- Center for Theragnosis; Biomedical Research Institute Korea Institute of Science and Technology (KIST); Hwarangno 14-gil 6 Seongbuk-gu Seoul 136-791 South Korea
| | - Ick Chan Kwon
- Center for Theragnosis; Biomedical Research Institute Korea Institute of Science and Technology (KIST); Hwarangno 14-gil 6 Seongbuk-gu Seoul 136-791 South Korea
| | - Hyuncheol Kim
- Department of Chemical and Biomolecular Engineering; Sogang University; Shinsu-dong Mapo-gu Seoul 121-742 South Korea
| | - Kwangmeyung Kim
- Center for Theragnosis; Biomedical Research Institute Korea Institute of Science and Technology (KIST); Hwarangno 14-gil 6 Seongbuk-gu Seoul 136-791 South Korea
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Choi JS, Lee H, Park YK, Kim SJ, Kim BJ, An KH, Kim BH, Jung SC. Application of Silver and Silver Oxide Nanoparticles Impregnated on Activated Carbon to the Degradation of Bromate. J Nanosci Nanotechnol 2016; 16:4493-4497. [PMID: 27483780 DOI: 10.1166/jnn.2016.10986] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Silver and silver oxide nanoparticles were impregnated on the surface of powdered activated carbon (PAC) using a single-step liquid phase plasma (LPP) method. Spherical silver and silver oxide nanoparticles of 20 to 100 nm size were dipersed evenly on the surface of PAC. The impregnated PAC exhibited a higher activity for the decomposition of bromate than bare PAC. The XPS, Raman and EDX analyses showed that the Ag/PAC composites synthesized by the LPP process.
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Kim SH, Chong JU, Lim JH, Choi GH, Kang CM, Choi JS, Lee WJ, Kim KS. Optimal assessment of lymph node status in gallbladder cancer. Eur J Surg Oncol 2015; 42:205-10. [PMID: 26614023 DOI: 10.1016/j.ejso.2015.10.013] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2015] [Revised: 10/09/2015] [Accepted: 10/29/2015] [Indexed: 12/29/2022] Open
Abstract
BACKGROUND Lymph node (LN) metastasis is an important prognostic factor in gallbladder cancer (GBCA). LN status has been adopted as a critical element of staging systems. However, the influence of total lymph node count (TLNC) remains unclear. We determined the optimal minimum TLNC and compared the prognostic significance of LN status indices in GBCA. METHODS We retrospectively reviewed medical records of 128 patients with T2 or greater GBCA who underwent LN dissection. We analyzed overall survival (OS) and relevance of the number of metastatic LNs, ratio of metastatic LNs to retrieved LNs (LNR), and TLNC in predicting OS. RESULTS The median OS durations were 120, 35, and 18 months in T2, T3, and T4 GBCA. Five-year OS rates were 73%, 43%, and 0% in T2, T3, and T4 GBCA. LN status did not significantly impact OS in T2 or T4 GBCA. However, all LN indices were significantly correlated with OS in T3 GBCA. Furthermore, multivariate analysis revealed that a metastatic LN count of more than four and a TLNC of more than eight were independent prognostic factors of OS in T3 GBCA. CONCLUSIONS TLNC and the number of positive LNs may be more important prognostic factors than LNR in T3 GBCA. Additionally, accurate staging may not be achieved in cases of T3 GBCA if the total number of retrieved LNs is less than eight. Thus, to ensure proper staging, we recommend that surgeons harvest more than eight LNs in patients with T3 GBCA.
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Affiliation(s)
- S H Kim
- Department of Surgery, Yonsei University Wonju College of Medicine, Wonju Severance Christian Hospital, Wonju, Republic of Korea
| | - J U Chong
- Department of Surgery, Yonsei University College of Medicine, Yonsei University Health System, Seoul, Republic of Korea
| | - J H Lim
- Department of Surgery, Yonsei University College of Medicine, Yongin Severance Hospital, Yongin, Republic of Korea
| | - G H Choi
- Department of Surgery, Yonsei University College of Medicine, Yonsei University Health System, Seoul, Republic of Korea
| | - C M Kang
- Department of Surgery, Yonsei University College of Medicine, Yonsei University Health System, Seoul, Republic of Korea
| | - J S Choi
- Department of Surgery, Yonsei University College of Medicine, Yonsei University Health System, Seoul, Republic of Korea
| | - W J Lee
- Department of Surgery, Yonsei University College of Medicine, Yonsei University Health System, Seoul, Republic of Korea
| | - K S Kim
- Department of Surgery, Yonsei University College of Medicine, Yonsei University Health System, Seoul, Republic of Korea.
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Lee WM, Choi JS, Bae J, Koh AR, Jung US, Ko JH. Laparoscopic Excision of Isolated Para-Aortic Lymph Node Recurrence. J Minim Invasive Gynecol 2015; 22:S117. [DOI: 10.1016/j.jmig.2015.08.317] [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: 11/16/2022]
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Choi JS, Bae J, Lee WM, Koh AR, Jung US, Ko JH. Laparoscopic Para-Aortic Lymphadenectomy (LPAL): Standard Surgical Boundary and Technique. J Minim Invasive Gynecol 2015; 22:S116. [DOI: 10.1016/j.jmig.2015.08.311] [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: 11/28/2022]
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Jung US, Choi JS, Bae J, Lee WM, Koh AR, Ko JH. Standard Surgical Boundary, Surgical Results, and Outcomes of Systemic Laparoscopic Para-Aortic Lymphadenectomy Up to the Left Renal Vein Level for Women With Gynecologic Cancers. J Minim Invasive Gynecol 2015; 22:S105. [DOI: 10.1016/j.jmig.2015.08.284] [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: 10/22/2022]
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Byun YS, Yoo YS, Kwon JY, Joo JS, Lim SA, Whang WJ, Mok JW, Choi JS, Joo CK. Diquafosol promotes corneal epithelial healing via intracellular calcium-mediated ERK activation. Exp Eye Res 2015; 143:89-97. [PMID: 26505315 DOI: 10.1016/j.exer.2015.10.013] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2015] [Revised: 10/15/2015] [Accepted: 10/16/2015] [Indexed: 12/27/2022]
Abstract
Diquafosol is known as a purinergic P2Y2 receptor (P2Y2R) agonist that stimulates water and mucin secretion from conjunctival epithelial cells and goblet cells, leading to tear film stability in dry eye. However, its effect on corneal epithelial healing has not yet been elucidated. The aim of the present study was to evaluate the effect of diquafosol on corneal epithelial healing in vivo and on P2Y2R-related downstream signaling pathways in vitro. We administered 3% diquafosol ophthalmic solution on 3 mm-diameter epithelial defects made in rat corneas and assessed the wound closure over time. Corneal epithelial healing was significantly accelerated in diquafosol-treated eyes compared to control eyes at 12 and 24 h. During wound healing, P2Y2R staining appeared stronger in the re-epithelized margin near the wound defect. To evaluate whether diquafosol stimulates epidermal growth factor receptor/extracellular-signal-regulated kinase (EGFR/ERK)-related cell proliferation and migration, simian virus 40-transfected human corneal epithelial (THCE) cells were used for in vitro experiments. Cell proliferation was accelerated by diquafosol at concentrations from 20 to 200 μM during 48 h, but inhibited at concentrations over 2000 μM. The intracellular calcium ([Ca(2+)]i) elevation was measured in diquafosol (100 μM)-stimulated cells using Fluo-4/AM ([Ca(2+)]i indicator). [Ca(2+)]i elevation was observed in diquafosol-stimulated cells regardless of the presence of calcium in media, and suramin pretreatment inhibited the calcium response. The effect of diquafosol on phosphorylation of EGFR, ERK and Akt, and cell migration was determined by western blotting and in vitro cell migration assay. Diquafosol induced phosphorylation of EGFR at 2 min post-stimulation, and phosphorylation of ERK at 5 min post-stimulation. Phosphorylation of ERK was attenuated in cells pretreated with suramin or BAPTA/AM ([Ca(2+)]i chelator), and partially with AG1478 (EGFR inhibitor). Likewise, diquafosol-treated cells showed acceleration of gap closure in cell migration assay, which was inhibited by suramin, BAPTA/AM, AG1478, and U0126 (MEK inhibitor). These studies demonstrate that diquafosol is effective in promoting corneal epithelial wound healing and that this effect may result from ERK-stimulated cell proliferation and migration via P2Y2R-mediated [Ca(2+)]i elevation.
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Affiliation(s)
- Yong-Soo Byun
- Department of Ophthalmology and Visual Science, College of Medicine, Seoul St. Mary's Hospital, The Catholic University of Korea, Seoul, Republic of Korea; Catholic Institute of Visual Science, Catholic University of Korea, Seoul, Republic of Korea
| | - Young-Sik Yoo
- Catholic Institute of Visual Science, Catholic University of Korea, Seoul, Republic of Korea
| | - Ji-Young Kwon
- Catholic Institute of Visual Science, Catholic University of Korea, Seoul, Republic of Korea
| | - Jong-Soo Joo
- Department of Ophthalmology and Visual Science, College of Medicine, Seoul St. Mary's Hospital, The Catholic University of Korea, Seoul, Republic of Korea
| | - Sung-A Lim
- Department of Ophthalmology and Visual Science, College of Medicine, Seoul St. Mary's Hospital, The Catholic University of Korea, Seoul, Republic of Korea
| | - Woong-Joo Whang
- Department of Ophthalmology and Visual Science, College of Medicine, Seoul St. Mary's Hospital, The Catholic University of Korea, Seoul, Republic of Korea
| | - Jee-Won Mok
- Catholic Institute of Visual Science, Catholic University of Korea, Seoul, Republic of Korea
| | - Jun-Sub Choi
- Catholic Institute of Visual Science, Catholic University of Korea, Seoul, Republic of Korea
| | - Choun-Ki Joo
- Department of Ophthalmology and Visual Science, College of Medicine, Seoul St. Mary's Hospital, The Catholic University of Korea, Seoul, Republic of Korea; Catholic Institute of Visual Science, Catholic University of Korea, Seoul, Republic of Korea.
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Rho CR, Choi JS, Seo M, Lee SK, Joo CK. Inhibition of Lymphangiogenesis and Hemangiogenesis in Corneal Inflammation by Subconjunctival Prox1 siRNA Injection in Rats. Invest Ophthalmol Vis Sci 2015; 56:5871-9. [DOI: 10.1167/iovs.14-14433] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Affiliation(s)
- Chang Rae Rho
- Department of Ophthalmology and Visual Science, Daejeon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea 2Catholic Institute for Visual Science, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Jun-Sub Choi
- Catholic Institute for Visual Science, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Minkoo Seo
- Department of Medical Lifescience, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Suk Kyeong Lee
- Department of Medical Lifescience, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Choun-Ki Joo
- Catholic Institute for Visual Science, College of Medicine, The Catholic University of Korea, Seoul, Korea 4Department of Ophthalmology and Visual Science, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
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Abstract
AIM Two-photon microscopy was performed to visualize ocular distribution of Flt1 peptide-hyaluronate (HA) conjugate micelles for eye drop treatment of corneal neovascularization. MATERIALS & METHODS Flt1 peptide-HA conjugate micelles were topically administered to the eye for two-photon microscopy and antiangiogenic effect assessment after silver nitrate cauterization. RESULTS In vivo two-photon microscopy revealed that Flt1 peptide-HA conjugate micelles were absorbed and remained on the corneal epithelia with an increased residence time, facilitating the corneal delivery of carboxyfluorescein succinimidyl ester (CFSE) as a model drug. Furthermore, repeated eye drops of Flt1 peptide-HA conjugate micelles showed comparable therapeutic effect to the subconjunctival injection on the corneal neovascularization. DISCUSSION & CONCLUSION We confirmed the feasibility of Flt1 peptide-HA conjugate micelles for eye drop treatment of corneal neovascularization.
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Affiliation(s)
- Songeun Beack
- Department of Materials Science & Engineering, Pohang University of Science & Technology (POSTECH), 77 Cheongam-ro, Nam-gu, Pohang 790-784, Korea
| | - Jun-Sub Choi
- Department of Ophthalmology & Visual Science, Seoul St., Mary's Hospital, College of Medicine, The Catholic University of Korea, 222 Banpo-daero, Seocho-gu, Seoul 137-701, Korea
| | - Jun Ho Lee
- Division of Biosciences & Biotechnology, Pohang University of Science & Technology (POSTECH), 77 Cheongam-ro, Nam-gu, Pohang 790-784, Korea
| | - Hyemin Kim
- Department of Materials Science & Engineering, Pohang University of Science & Technology (POSTECH), 77 Cheongam-ro, Nam-gu, Pohang 790-784, Korea
| | - Ki Hean Kim
- Division of Biosciences & Biotechnology, Pohang University of Science & Technology (POSTECH), 77 Cheongam-ro, Nam-gu, Pohang 790-784, Korea
| | - Choun-Ki Joo
- Department of Ophthalmology & Visual Science, Seoul St., Mary's Hospital, College of Medicine, The Catholic University of Korea, 222 Banpo-daero, Seocho-gu, Seoul 137-701, Korea
| | - Sei Kwang Hahn
- Department of Materials Science & Engineering, Pohang University of Science & Technology (POSTECH), 77 Cheongam-ro, Nam-gu, Pohang 790-784, Korea
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Kim BH, Lee J, Choi JS, Park DY, Song HY, Park TK, Cho CH, Ye SK, Joo CK, Koh GY, Kim TY. Imidazole-based alkaloid derivative LCB54-0009 suppresses ocular angiogenesis and lymphangiogenesis in models of experimental retinopathy and corneal neovascularization. Br J Pharmacol 2015; 172:3875-89. [PMID: 25917462 DOI: 10.1111/bph.13177] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2014] [Revised: 04/08/2015] [Accepted: 04/18/2015] [Indexed: 01/22/2023] Open
Abstract
BACKGROUND AND PURPOSE Abnormally induced angiogenesis and lymphangiogenesis are associated with human diseases, including neovascular eye disease. Substances that inhibit these processes may have potential as an attractive therapeutic strategy for these diseases. EXPERIMENTAL APPROACH In vitro and in vivo angiogenesis and/or lymphangiogenesis were assessed in VEGF- or hypoxia-stimulated endothelial and retinal cells and in animal models of oxygen-induced retinopathy (OIR), streptozotocin-induced diabetic retinopathy (SIDR), suture-induced inflammatory corneal neovascularization (SICNV) and silver nitrate-induced corneal neovascularization. HUVECs and retinal cells were cultured under hypoxic conditions or incubated with VEGF to identify the molecular mechanisms involved. KEY RESULTS The imidazole-based alkaloid derivative LCB54-0009 inhibited capillary-like tube formation in VEGF-induced HUVECs without inducing cytotoxic effects. Intravitreal injection of LCB54-0009 into retinas suppressed the formation of the pathological neovascular tufts and increased vascular permeability in both OIR of mice and SIDR of rats. Furthermore, subconjunctival injection of LCB54-0009 into the cornea suppressed corneal inflammation and inflammation-associated angiogenesis and lymphangiogenesis in SICNV of mice and silver nitrate cauterization of rats. These pharmacological activities were associated with effects on HIF-1α protein stability and HIF-1α/NF-κB redox sensitivity through its antioxidant activities. LCB54-0009 also inhibited the hypoxia-induced expression of angiopoietin-2, and VEGF-induced VEGFR-2 activation and downstream signalling, resulting in the down-regulation of the expression of pro-angiogenic factors and pro-inflammatory mediators and an up-regulation of the expression of anti-angiogenic factors. CONCLUSIONS AND IMPLICATIONS LCB54-0009 is a potential candidate molecule for blocking pathological angiogenesis and lymphangiogenesis mediated by HIF-1α- angiopoietin-2 expression and VEGFR-2 activation.
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Affiliation(s)
- Byung-Hak Kim
- Department of Dermatology, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Junyeop Lee
- Graduate School of Medical Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, Korea
| | - Jun-Sub Choi
- Catholic Institute for Visual Science, Department of Ophthalmology and Visual Science, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Dae Young Park
- Graduate School of Medical Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, Korea
| | | | | | - Chung-Hyun Cho
- Department of Pharmacology and Biomedical Sciences, Seoul National University College of Medicine, Seoul, Korea
| | - Sang-Kyu Ye
- Department of Pharmacology and Biomedical Sciences, Seoul National University College of Medicine, Seoul, Korea
| | - Choun-Ki Joo
- Catholic Institute for Visual Science, Department of Ophthalmology and Visual Science, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Gou Young Koh
- Graduate School of Medical Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, Korea
| | - Tae-Yoon Kim
- Department of Dermatology, College of Medicine, The Catholic University of Korea, Seoul, Korea
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Yang JY, Kwak HS, Han JY, Choi JS, Ahn HK, Oh YJ, Velázquez-Armenta EY, Nava-Ocampo AA. Linear Versus Non-Linear Dose-Response Relationship Between Prenatal Alcohol Exposure and Meconium Concentration of Nine Different Fatty Acid Ethyl Esters. Dose Response 2015; 13:10.2203_dose-response.14-056_Yang. [PMID: 26691866 PMCID: PMC4679215 DOI: 10.2203/dose-response.14-056_yang] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
Presence of individual fatty acid ethyl esters (FAEEs) in meconium is considered to be a reliable biomarker of prenatal alcohol exposure, and their concentration has been found to be linearly associated with poor postnatal development, supporting the widely extended idea that ethanol is a non-threshold teratogen. However, a growing number of epidemiological studies have consistently found a lack of adverse short- and long-term fetal outcomes at low exposure levels. We therefore aimed to investigate the relationship between the concentration of individual FAEEs and prenatal alcohol exposure in meconium samples collected within the first 6 to 12?h after birth from 182 babies born to abstainer mothers and from 54 babies born to women who self-reported either light or moderate alcohol ingestion in the second or third trimester of pregnancy. In most cases, the individual FAEE concentrations were negligible and not significantly different (P >0.05) between exposed and control babies. The concentrations appeared to increase linearly with the dose only in the few babies born to mothers who reported >3 drinks/week. These results provide evidence that the correlation between prenatal alcohol exposure and individual FAEE concentrations in meconium is non-linear shape, with a threshold probably at 3 drinks/week.
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Affiliation(s)
- J Y Yang
- National Institute of of Food and Drug Safety Evaluation, Ministry of Food and Drug Safety, Seoul, Republic of Korea ; Department of Systems Biology, Yonsei University, Seoul, Republic of Korea
| | - H S Kwak
- Department of Laboratory Medicine, Cheil General Hospital and Women's Healthcare Center, Kwandong University School of Medicine, Seoul, Republic of Korea
| | - J Y Han
- The Korean Motherisk Program, Department of Obstetrics and Gynecology, Cheil General Hospital and Women's Healthcare Center, Kwandong University School of Medicine, Seoul, Republic of Korea
| | - J S Choi
- The Korean Motherisk Program, Department of Obstetrics and Gynecology, Cheil General Hospital and Women's Healthcare Center, Kwandong University School of Medicine, Seoul, Republic of Korea
| | - H K Ahn
- The Korean Motherisk Program, Department of Obstetrics and Gynecology, Cheil General Hospital and Women's Healthcare Center, Kwandong University School of Medicine, Seoul, Republic of Korea
| | - Y J Oh
- Department of Systems Biology, Yonsei University, Seoul, Republic of Korea
| | - E Y Velázquez-Armenta
- PharmaReasons - Pharmacological Research & Applied Solutions, Toronto, Ontario, Canada
| | - A A Nava-Ocampo
- PharmaReasons - Pharmacological Research & Applied Solutions, Toronto, Ontario, Canada ; Department of Pharmacology & Toxicology, Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada ; Division of Clinical Pharmacology & Toxicology, Hospital for Sick Children, Toronto, Ontario, Canada
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Choi JS, Bae EH, Ma SK, Kweon SS, Kim SW. Prognostic impact of hyponatraemia in patients with colorectal cancer. Colorectal Dis 2015; 17:409-16. [PMID: 25524356 DOI: 10.1111/codi.12878] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/09/2014] [Accepted: 12/03/2014] [Indexed: 12/11/2022]
Abstract
AIM Hyponatraemia is a common in surgical practice, but its clinical impact in patients with colorectal cancer has not been evaluated. METHOD We retrospectively assessed 2944 patients who had been admitted to Chonnam National University Hwasun Hospital, Korea with a diagnosis of colorectal cancer. In order to determine the relationship between the serum sodium level and 3-year mortality, we categorized the patients as having normonatraemia (135-147 mEq/l), or mild (130-134 mEq/l), moderate (125-129 mEq/l) or severe hyponatraemia (< 125 mEq/l). RESULTS Hyponatraemia, defined as a serum sodium level of < 135 mEq/l, was evident in 27.6% of patients during hospitalization. Declining serum sodium levels were associated with increasing age, a higher number of comorbidities, a more advanced TNM stage and worsening biochemical parameters. In a multivariate Cox-proportional regression analysis, the mortality risk was correlated with the severity of hyponatraemia [hazard ratio (HR) 1.65, 95% CI 1.38-1.96; HR 2.24, 95% CI 1.69-2.98; HR 2.20, 95% CI 1.25-3.90, for patients with mild, moderate, and severe hyponatraemia, respectively, compared with patients with normonatraemia]. An independent association between hyponatraemia and long-term mortality was sustained among various subpopulations and patients with persistent hyponatraemia had a worse prognosis than those with hyponatraemia that resolved. CONCLUSION A substantial proportion of patients developed hyponatraemia during hospitalization, and the long-term mortality risk increased even in mild cases of hyponatraemia. Hyponatraemia should be considered as an important prognostic factor in colorectal cancer.
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Affiliation(s)
- J S Choi
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Korea
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Choi JS, Han JY, Ahn HK, Lee SW, Koong MK, Velazquez-Armenta EY, Nava-Ocampo AA. Assessment of fetal and neonatal outcomes in the offspring of women who had been treated with dried ginger (Zingiberis rhizoma siccus) for a variety of illnesses during pregnancy. J OBSTET GYNAECOL 2015; 35:125-30. [PMID: 25093607 DOI: 10.3109/01443615.2014.941342] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
The present study was designed to investigate if exposure to dried ginger during pregnancy would increase the risk of adverse fetal and neonatal outcomes. Participants consisted of 159 singleton pregnant women who received dried ginger as a herbal medication. We also included a control group of 306 pregnant women who had not been exposed to any herbal medication or any known teratogen. No increased risk of major malformations was detected in exposed women (OR = 4.9; 95% CI 0.9-25.5; p = 0.051). The incidence of stillbirths in the exposed group was marginally higher than in the controls (OR = 7.8; 95% CI 0.9-70.3; p = 0.05). The risk was more evident when the exposed group was compared with the general population in the Republic of Korea (OR = 7.9; 95% CI 2.9-21.4; p < 0.0001). Other fetal and neonatal study outcomes investigated in the exposed group were similar (p > 0.05) to the controls. In conclusion, dried ginger does not appear to be a major teratogen. However, due to the limitations of the study, e.g. the large variability in the dose of dried ginger in the exposed group, as well as the concomitant exposure to other herbal medications, the increased incidence of stillbirths requires confirmation in larger cohort studies.
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Seo M, Choi JS, Rho CR, Joo CK, Lee SK. MicroRNA miR-466 inhibits Lymphangiogenesis by targeting prospero-related homeobox 1 in the alkali burn corneal injury model. J Biomed Sci 2015; 22:3. [PMID: 25573115 PMCID: PMC4304626 DOI: 10.1186/s12929-014-0104-0] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2014] [Accepted: 12/03/2014] [Indexed: 12/21/2022] Open
Abstract
Background Lymphangiogenesis is one of the major causes of corneal graft rejection. Among the lymphangiogenic factors, vascular endothelial growth factor (VEGF)-C and -D are considered to be the most potent. Both bind to VEGF receptor 3 (VEGFR3) to activate Prospero homeobox 1 (Prox1), a transcription factor essential for the development and maintenance of lymphatic vasculature. MicroRNAs (miRNAs) bind to the 3' untranslated regions (3' UTRs) of target genes in a sequence-specific manner and suppress gene expression. In the current study, we searched for miRNAs that target the pro-lymphangiogenic factor Prox1. Results Among the miRNAs predicted by the bioinformatic analysis to seed match with the 3' UTR of Prox-1, we chose 3 (miR-466, miR-4305, and miR-4795-5p) for further investigation. Both the miR-466 and miR-4305 mimics, but not the miR-4795-5p mimic, significantly reduced the luciferase activity of the Prox-1 3' UTR reporter vector. In primary lymphatic endothelial cells (HDLEC), miR-466 mimic transfection suppressed Prox1 mRNA and protein expression, while miR-4305 mimic transfection did not. Experiments using mutated reporter constructs of the two possible seed match sites on the 3' UTR of Prox1 suggested that the target site 2 directly bound miR-466. HDLEC transfected with the miR-466 mimic suppressed tube formation as compared to the scrambled control. Furthermore, HDLEC transfected with a miR-466 inhibitor showed enhanced tube formation as compared to control inhibitor transfected cells, and this inhibitory effect was counteracted by Prox1 siRNA. The miR-466 mimic reduced angiogenesis and lymphangiogenesis resulting in clearer corneas in an cornea injury rat model compared to the scrambled control. Conclusions Our data suggest that miR-446 may have a protective effect on transplanted corneas by suppressing Prox1 expression at the post-transcriptional level. The results of the current study may provide insights into the mechanisms of lymphangiogenesis resulting from corneal graft rejection and alkali-burn injuries, as well as into the development of new treatments for lymphangiogenic eye diseases. Electronic supplementary material The online version of this article (doi:10.1186/s12929-014-0104-0) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Minkoo Seo
- Department of Medical Lifescience, College of Medicine, The Catholic University of Korea, Seoul, Korea.
| | - Jun-Sub Choi
- Catholic Institute for Visual Science, College of Medicine, The Catholic University of Korea, Seoul, Korea.
| | - Chang Rae Rho
- Catholic Institute for Visual Science, College of Medicine, The Catholic University of Korea, Seoul, Korea. .,Department of Ophthalmology and Visual Science, Daejeon St. Mary's Hospital, Daejeon, Korea.
| | - Choun-Ki Joo
- Catholic Institute for Visual Science, College of Medicine, The Catholic University of Korea, Seoul, Korea. .,Department of Ophthalmology and Visual Science, Seoul St. Mary's Hospital, Seoul, Korea.
| | - Suk Kyeong Lee
- Department of Medical Lifescience, College of Medicine, The Catholic University of Korea, Seoul, Korea.
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Kang KW, Lee JH, Choi JS, Lee SR, Park Y, Kim BS, Kim I. Spontaneous resolution of post-transplant localized cytomegalovirus lymphadenitis mimicking tumor recurrence. Transpl Infect Dis 2014; 16:676-80. [PMID: 24965019 DOI: 10.1111/tid.12254] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2013] [Revised: 03/06/2014] [Accepted: 03/13/2014] [Indexed: 11/29/2022]
Abstract
Compromised T-cell immunity persists for up to 1 year after autologous stem cell transplantation (ASCT), and patients treated with ASCT are more likely to develop atypical lymphoid hyperplasia that mimics tumor recurrence. Here, we present a case of cervical lymphadenitis due to cytomegalovirus (CMV) reactivation in a patient who had undergone ASCT for Burkitt lymphoma, which mimicked tumor recurrence on computed tomography and positron emission tomography-computed tomography 6 months after ASCT. This lesion was confined to the regional lymph nodes and was not accompanied by signs of systemic involvement, such as fever, splenomegaly, an elevated C-reactive protein level, or viremia. The localized CMV lymphadenitis resolved spontaneously without treatment after 6 months (12 months after ASCT) and the elevated CMV immunoglobulin-M titer normalized 6 months after resolution. Our experience with this case suggests that cautious follow-up without anti-CMV treatment should be considered in cases of post-ASCT localized CMV lymphadenitis without systemic involvement in patients with complete engraftment.
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Affiliation(s)
- K W Kang
- Department of Internal Medicine, Korea University School of Medicine, Seoul, Korea
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Lee SH, Joo DJ, Kim SU, Kim MS, Lee AL, Choi GH, Choi JS, Han KH, Kim SI. Graft function measured by transient elastography in living donor liver transplantation: preliminary. Transplant Proc 2014; 45:3028-31. [PMID: 24157028 DOI: 10.1016/j.transproceed.2013.08.051] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
INTRODUCTION Liver stiffness measurements (LSMs) using transient elastography (TE) provide a noninvasive means to assess liver fibrosis that correlate with hepatic cholestasis. However, few studies have examined the correlation of TE to obtain LSMs with perioperative clinical and laboratory parameters in living donor liver transplantation (LDLT). PATIENTS AND METHODS We retrospectively reviewed forty-eight subjects who underwent LDLT between November 2010 and October 2012. All donors and recipients underwent TE, abdominal computed tomography (CT), and biochemical tests within 1 month before and at 1 week after transplantation. Using a cut-off LSM of 7.5 kPa, which we arbitrarily assigned to be indicative of significant fibrosis, we divided our study population into ≤7.5 kPa (group L; n = 15, 31.3%) versus >7.5 kPa; (group H; n = 33, 68.8%). RESULTS Pretransplantation serum total bilirubin, international normalized ratio, and Model for End-stage Liver Disease scores of recipients were significantly higher in group H than group L. Regarding the pretransplantation donor characteristics, the graft-recipient weight ratio was significantly smaller among those in group H (P = .039). In addition, the post-transplantation 1-week serum total bilirubin level was significantly higher in group H (2.3 mg/dL versus 1.2 mg/dL, P = .015), although neither biliary complications norhepatic congestion was identified by abdominal CT. Among the 1-week post-transplantation laboratory findings, only total bilirubin positively correlated with LSM (P = .044). CONCLUSIONS This pilot study suggested that a high LSM after LDLT suggests intrahepatic cholestasis and portal hypercirculation in the graft, irrespective of liver fibrosis, outflow obstruction, or biliary obstruction.
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Affiliation(s)
- S H Lee
- Department of Surgery, Yonsei University College of Medicine, Seoul, Korea; Research Institute for Transplantation, Yonsei University College of Medicine, Seoul, Korea
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Lee HS, Choi GH, Joo DJ, Kim MS, Kim SI, Han KH, Ahn SH, Kim DY, Park JY, Choi JS. Prognostic value of model for end-stage liver disease scores in patients with fulminant hepatic failure. Transplant Proc 2014; 45:2992-4. [PMID: 24157020 DOI: 10.1016/j.transproceed.2013.08.036] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
BACKGROUND This study was undertaken to investigate risk factors of mortality in patients with fulminant hepatic failure (FHF). METHODS Fifty-three patients with FHF treated from January 2006 to April 2011 were allocated to a spontaneous survival group (group 1), a death without liver transplantation (LT) group (group 2), and an LT group (group 3). To analyze risk factors associated with mortality in FHF, we excluded group 3 patients. Clinical features, Model for End-Stage Liver Disease (MELD) scores, and King's College Hospital criteria at the time of hepatic encephalopathy in group 2 were compared with those of group 1. RESULTS The causes of FHF were acute viral infection (n = 29, hepatitis A:B, 28:1), drugs (n = 18; including 4 acetaminophen and 14 herbal medication), autoimmune (n = 4), and miscellaneous (n = 2). Of the 53 patients, 19 were allocated to group 1, 18 to group 2, and 16 to group 3. According to univariate analysis, risk factors for mortality in group 2 were acute renal failure requiring renal replacement therapy and a MELD score ≥30 at the time of hepatic encephalopathy. However, by multivariate analysis, a MELD score ≥30 was the only independent risk factor for mortality in group 2 (P = .042; hazard ratio, 4.500). CONCLUSIONS A MELD score ≥30 was found to be the only independent risk factor of mortality in FHF patients without LT. Therefore, the findings of this study suggest that these patients may need emergent LT for survival.
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Affiliation(s)
- H S Lee
- Department of Surgery, Yonsei University College of Medicine, Seoul, Korea
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Kim JY, Choi JS, Song SH, Im JE, Kim JM, Kim K, Kwon S, Shin HK, Joo CK, Lee BH, Suh W. Stem cell factor is a potent endothelial permeability factor. Arterioscler Thromb Vasc Biol 2014; 34:1459-67. [PMID: 24790137 DOI: 10.1161/atvbaha.114.303575] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
OBJECTIVE Although stem cell factor (SCF) has been shown to play a critical role in hematopoiesis, gametogenesis, and melanogenesis, the function of SCF in the regulation of vascular integrity has not been studied. APPROACH AND RESULTS We demonstrated that SCF binds to and activates the cKit receptor in endothelial cells, thereby increasing the internalization of vascular endothelial-cadherin and enhancing extravasation of dyes to a similar extent as vascular endothelial growth factor. SCF-mediated cKit activation in endothelial cells enhanced the phosphorylation of endothelial nitric oxide (NO) synthase via the phosphoinositide 3-kinase/Akt signaling pathway and subsequently increased the production of NO. Inhibition of endothelial NO synthase expression and NO synthesis using small interfering RNA knockdown and chemical inhibitors substantially diminished the ability of SCF to increase the internalization of vascular endothelial-cadherin and in vitro endothelial permeability. SCF-induced increase in extravasation of the dyes was abrogated in endothelial NO synthase knockout mice, which indicates that endothelial NO synthase-mediated NO production was responsible for the SCF-induced vascular leakage. Furthermore, we demonstrated that the expression of SCF and cKit was significantly higher in the retina of streptozotocin-injected diabetic mice than in the nondiabetic control animals. Depletion of SCF by intravitreous injection of anti-SCF-neutralizing immunoglobulin G significantly prevented vascular hyperpermeability in the retinas of streptozotocin-injected diabetic mice. CONCLUSIONS Our data reveal that SCF disrupts the endothelial adherens junction and enhances vascular leakage, as well as suggest that anti-SCF/cKit therapy may hold promise as a potential therapy for the treatment of hyperpermeable vascular diseases.
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Affiliation(s)
- Ji Yeon Kim
- From the College of Pharmacy, Ajou University, Suwon, Korea (J.Y.K., S.-H.S., J.-E.I., K.K., S.K., W.S.); Department of Ophthalmology and Visual Science, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea (J.-S.C., C.-K.J.); Department of Molecular and Life Science, CHA University, Seoul, Korea (J.-M.K.); Division of Meridian and Structural Medicine, School of Korean Medicine, Pusan National University, Gyeongnam, Korea (H.K.S.); and Drug Discovery Division, Korea Research Institute of Chemical Technology, Daejeon, Korea (B.H.L.)
| | - Jun-Sub Choi
- From the College of Pharmacy, Ajou University, Suwon, Korea (J.Y.K., S.-H.S., J.-E.I., K.K., S.K., W.S.); Department of Ophthalmology and Visual Science, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea (J.-S.C., C.-K.J.); Department of Molecular and Life Science, CHA University, Seoul, Korea (J.-M.K.); Division of Meridian and Structural Medicine, School of Korean Medicine, Pusan National University, Gyeongnam, Korea (H.K.S.); and Drug Discovery Division, Korea Research Institute of Chemical Technology, Daejeon, Korea (B.H.L.)
| | - Sun-Hwa Song
- From the College of Pharmacy, Ajou University, Suwon, Korea (J.Y.K., S.-H.S., J.-E.I., K.K., S.K., W.S.); Department of Ophthalmology and Visual Science, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea (J.-S.C., C.-K.J.); Department of Molecular and Life Science, CHA University, Seoul, Korea (J.-M.K.); Division of Meridian and Structural Medicine, School of Korean Medicine, Pusan National University, Gyeongnam, Korea (H.K.S.); and Drug Discovery Division, Korea Research Institute of Chemical Technology, Daejeon, Korea (B.H.L.)
| | - Ji-Eun Im
- From the College of Pharmacy, Ajou University, Suwon, Korea (J.Y.K., S.-H.S., J.-E.I., K.K., S.K., W.S.); Department of Ophthalmology and Visual Science, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea (J.-S.C., C.-K.J.); Department of Molecular and Life Science, CHA University, Seoul, Korea (J.-M.K.); Division of Meridian and Structural Medicine, School of Korean Medicine, Pusan National University, Gyeongnam, Korea (H.K.S.); and Drug Discovery Division, Korea Research Institute of Chemical Technology, Daejeon, Korea (B.H.L.)
| | - Jung-Mo Kim
- From the College of Pharmacy, Ajou University, Suwon, Korea (J.Y.K., S.-H.S., J.-E.I., K.K., S.K., W.S.); Department of Ophthalmology and Visual Science, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea (J.-S.C., C.-K.J.); Department of Molecular and Life Science, CHA University, Seoul, Korea (J.-M.K.); Division of Meridian and Structural Medicine, School of Korean Medicine, Pusan National University, Gyeongnam, Korea (H.K.S.); and Drug Discovery Division, Korea Research Institute of Chemical Technology, Daejeon, Korea (B.H.L.)
| | - Kyungjong Kim
- From the College of Pharmacy, Ajou University, Suwon, Korea (J.Y.K., S.-H.S., J.-E.I., K.K., S.K., W.S.); Department of Ophthalmology and Visual Science, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea (J.-S.C., C.-K.J.); Department of Molecular and Life Science, CHA University, Seoul, Korea (J.-M.K.); Division of Meridian and Structural Medicine, School of Korean Medicine, Pusan National University, Gyeongnam, Korea (H.K.S.); and Drug Discovery Division, Korea Research Institute of Chemical Technology, Daejeon, Korea (B.H.L.)
| | - Soonboem Kwon
- From the College of Pharmacy, Ajou University, Suwon, Korea (J.Y.K., S.-H.S., J.-E.I., K.K., S.K., W.S.); Department of Ophthalmology and Visual Science, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea (J.-S.C., C.-K.J.); Department of Molecular and Life Science, CHA University, Seoul, Korea (J.-M.K.); Division of Meridian and Structural Medicine, School of Korean Medicine, Pusan National University, Gyeongnam, Korea (H.K.S.); and Drug Discovery Division, Korea Research Institute of Chemical Technology, Daejeon, Korea (B.H.L.)
| | - Hwa Kyoung Shin
- From the College of Pharmacy, Ajou University, Suwon, Korea (J.Y.K., S.-H.S., J.-E.I., K.K., S.K., W.S.); Department of Ophthalmology and Visual Science, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea (J.-S.C., C.-K.J.); Department of Molecular and Life Science, CHA University, Seoul, Korea (J.-M.K.); Division of Meridian and Structural Medicine, School of Korean Medicine, Pusan National University, Gyeongnam, Korea (H.K.S.); and Drug Discovery Division, Korea Research Institute of Chemical Technology, Daejeon, Korea (B.H.L.)
| | - Choun-Ki Joo
- From the College of Pharmacy, Ajou University, Suwon, Korea (J.Y.K., S.-H.S., J.-E.I., K.K., S.K., W.S.); Department of Ophthalmology and Visual Science, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea (J.-S.C., C.-K.J.); Department of Molecular and Life Science, CHA University, Seoul, Korea (J.-M.K.); Division of Meridian and Structural Medicine, School of Korean Medicine, Pusan National University, Gyeongnam, Korea (H.K.S.); and Drug Discovery Division, Korea Research Institute of Chemical Technology, Daejeon, Korea (B.H.L.)
| | - Byung Ho Lee
- From the College of Pharmacy, Ajou University, Suwon, Korea (J.Y.K., S.-H.S., J.-E.I., K.K., S.K., W.S.); Department of Ophthalmology and Visual Science, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea (J.-S.C., C.-K.J.); Department of Molecular and Life Science, CHA University, Seoul, Korea (J.-M.K.); Division of Meridian and Structural Medicine, School of Korean Medicine, Pusan National University, Gyeongnam, Korea (H.K.S.); and Drug Discovery Division, Korea Research Institute of Chemical Technology, Daejeon, Korea (B.H.L.)
| | - Wonhee Suh
- From the College of Pharmacy, Ajou University, Suwon, Korea (J.Y.K., S.-H.S., J.-E.I., K.K., S.K., W.S.); Department of Ophthalmology and Visual Science, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea (J.-S.C., C.-K.J.); Department of Molecular and Life Science, CHA University, Seoul, Korea (J.-M.K.); Division of Meridian and Structural Medicine, School of Korean Medicine, Pusan National University, Gyeongnam, Korea (H.K.S.); and Drug Discovery Division, Korea Research Institute of Chemical Technology, Daejeon, Korea (B.H.L.).
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Sidhu MS, Choi MY, Woo SY, Lee HK, Lee HS, Kim KJ, Jeoung SC, Choi JS, Joo CK, Park IH. Femtosecond laser-assisted selective reduction of neovascularization in rat cornea. Lasers Med Sci 2014; 29:1417-27. [PMID: 24570086 PMCID: PMC4074465 DOI: 10.1007/s10103-014-1545-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2013] [Accepted: 02/04/2014] [Indexed: 11/30/2022]
Abstract
Nonlinear multiphoton absorption induced by focusing near infrared (NIR) femtosecond (fs) laser pulses into a transparent cornea allows surgery on neovascular structures with minimal collateral damage. In this report, we introduce an fs laser-based microsurgery for selective treatment of rat corneal neovascularizations (in vivo). Contiguous tissue effects are achieved by scanning a focused laser pulse below the corneal surface with a fluence range of 2.2–8.6 J/cm2. The minimal visible laser lesion (MVL) threshold determined over the corneal neovascular structures was found to be 4.3 J/cm2. Histological and optical coherence tomography examinations of the anterior segment after laser irradiations show localized degeneration of neovascular structures without any unexpected change in adjacent tissues. Furthermore, an approximately 30 % reduction in corneal neovascularizations was observed after 5 days of fs laser exposure. The femtosecond laser is thus a promising tool for minimally invasive intrastromal surgery with the aid of a significantly smaller and more deterministic photodisruptive energy threshold for the interaction between the fs laser pulse and corneal neovascular structures.
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Affiliation(s)
- Mehra S Sidhu
- Center for Medical Metrology, Division of Convergence Technology, Korea Research Institute of Standards and Science, Daejeon, 305 340, Republic of Korea
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