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Comparison of the efficacy and safety of once-daily dosing and on-demand use of udenafil for type 2 diabetic patients with erectile dysfunction

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Asian Journal of Andrology 2015年第1期17卷 143-148,I0011,I0012页

作者： Soon Hyun Park Sung Woo Park Bong Yun Cha Ie Byung Park Kyung Wan Min Yeon Ah Sung tae hwa kim Jae Min Lee Kang Seo Park Department of Internal Medicine Eulji University School of Medicine Daejeon 302-799 South Korea Department of Endocrinology and Metabolism Kangbuk Samsung Hospital Sungkyunkwan University School of Medicine Seou1110-746 South Korea Department of Endocrinology and Metabolism College of Medicine the Catholic University of Korea Seou1137-701 South Korea Department of Internal Medicine Gachon University of Medicine and Science Graduate School of Medicine Incheon 405-760 South Korea Department of Internal Medicine Eulji University School of Medicine Seou1139-872 South Korea Department of Endocrinology Ewha Woman's University School of Medicine Seoul 158-710 South Korea Department of Internal Medicine College of Medicine Hanyang University Seoul 133-792 South Korea.

We compared the efficacy and safety between once-daily dosing and on-demand use of udenafil for type 2 diabetic patients with erectile dysfunction （ED）. A multi-center, randomized, open-label, parallel-group, 12-week study was conducted. 161 patients who improved with on-demand 200 mg of udenafil according to Sexual Encounter Profile （SEP） diary Question 2 and 3 （Q2 and Q3） were randomized into 200 mg on-demand （n = 80） or 50 mg once-daily （n = 81） dosing groups for 8 weeks. The dosing period was followed by a 4-week treatment-free period. The primary efficacy endpoint was the change of the International Index of Erectile Function （IIEF） erectile function domain （EFD） score. The secondary efficacy endpoints included changes to the SEP diary Q2, Q3, IIEF Q3, Q4, other domains of IIEF, Global Assessment Question, and shift to the normal rate （EFD 〉 26）. Vascular endothelial markers were also assessed. The IIEF-EFD score of both groups improved after 8 weeks of treatment （P 〈 0.0001）. There was no statistically significant difference between two groups. Improvement was not maintained after the treatment-free follow-up period. Similar results were observed in the secondary efficacy endpoints. There was also no significant difference in vascular endothelial markers. Daily udenafil was well-tolerated, and there was no significant difference in the adverse drug reactions and adverse events between the two groups. Flushing and headache were the most frequent adverse events. Both regimens improved ED in diabetic patients and were well-tolerated. Further studies are needed to assess the effect of daily udenafil treatment in diabetic patients.

关键词： erectile dysfunction International Index of Erectile Function once-daily dosing ptiosphodiesterase type 5 inhibitor type 2 diabetes mellitus udenafil

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Prominent cycling reversibility and kinetics enabled by CaTiO3 protective layer on Zn metal for aqueous Zn-ion batteries

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Journal of Energy Chemistry 2025年第1期100卷 245-258页

作者： Gaeun Lee Yong Nam Ahn Seongjoon So Chanwoo Park Jong-Seong Bae taehyun Park Il tae kim Jaehyun Hur School of Chemical Biological and Battery Engineering Gachon University Seongnam Busan Center Korea Basic Science Institute

Aqueous Zn-ion batteries （AZIBs） have received considerable attention owing to their various advantages such as safety,low cost,simple battery assembly conditions,and high ionic ***,they still suffer from serious problems,including uncontrollable dendrite growth,corrosion,hydrogen evolution reaction （HER） from water decomposition,electrode passivation,and unexpected *** creation of a uniform artificial nanocrystal layer on the Zn anode surface is a promising strategy for resolving these ***,we propose the use of a perovskite CaTiO3（CTO） protective layer on Zn（CTO@Zn） as a promising approach for improving the performance of *** CTO artificial layer provides an efficient pathway for Zn ion diffusion towards the Zn metal because of the high dielectric constant （εr=180） and ferroelectric characteristics that enable the alignment of dipole moments and redistribute the Zn2+ions in the CTO *** avoiding the direct contact of the Zn anode with the electrolyte solution,the uneven dendrite growth,corrosion,parasitic side reactions,and HER are mitigated,while CTO retains its mechanical and chemical robustness during ***,CTO@Zn demonstrates an improved lifespan in a symmetric cell configuration compared with bare ***@Zn shows steady overpotential （～68 m V） for 1500 h at 1 mA cm-2/0.5 mA h cm-2,excelling bare ***,when paired with the V2O5-C cathode,the CTO@Zn//V2O5-C full battery delivers 148.4 mA h g-1（based on the mass of the cathode） after 300 *** study provides new insights into Zn metal anodes and the development of high-performance AZIBs.

关键词： Artificial layer Dielectric constant Zn metal anode Zinc aqueous battery

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Ultra‑Transparent and Multifunctional IZVO Mesh Electrodes for Next‑Generation Flexible Optoelectronics

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Nano-Micro Letters 2025年第1期17卷 293-309页

作者： Kiran A.Nirmal Tukaram D.Dongale Atul C.Khot Chenjie Yao Nahyun kim tae Geun kim School of Electrical Engineering Korea UniversityAnam‑ro 145Seongbuk‑guSeoulRepublic of Korea Computational Electronics and Nanoscience Research Laboratory School of Nanoscience and BiotechnologyShivaji UniversityKolhapur 416004India

Mechanically durable transparent electrodes are essential for achieving long-term stability in flexible optoelectronic ***,they are crucial for applications in the fields of energy,display,healthcare,and soft *** meshes represent a promising alternative to traditional,brittle,metal oxide conductors due to their high electrical conductivity,optical transparency,and enhanced mechanical *** this paper,we present a simple method for fabricating an ultra-transparent conducting metal oxide mesh electrode using selfcracking-assisted *** this method,we produced an electrode with ultra-transparency(97.39%),high conductance(Rs=21.24Ωsq^(−1)),elevated work function(5.16 eV),and good mechanical *** also evaluated the effectiveness of the fabricated electrodes by integrating them into organic photovoltaics,organic light-emitting diodes,and flexible transparent memristor devices for neuromorphic computing,resulting in exceptional device *** addition,the unique porous structure of the vanadium-doped indium zinc oxide mesh electrodes provided excellent flexibility,rendering them a promising option for application in flexible optoelectronics.

关键词： Self-cracking template Vanadium-doped indium zinc oxide mesh Organic solar cells Organic light-emitting diodes Flexible transparent memory

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Effects of electroacupuncture on the functionality of NG2-expressing cells in perilesional brain tissue of mice following ischemic stroke

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Neural Regeneration Research 2022年第7期17卷 1556-1565页

作者： Hong Ju Lee Da Hee Jung Nam Kwen kim hwa Kyoung Shin Byung tae Choi Department of Korean Medical Science School of Korean MedicinePusan National UniversityYangsanRepublic of Korea Graduate Training Program of Korean Medicine for Healthy Aging Pusan National UniversityYangsanRepublic of Korea Department of Korean Ophthalmology Otolaryngology and DermatologySchool of Korean MedicinePusan National UniversityYangsanRepublic of Korea

Neural/glial antigen 2(NG2)-expressing cells has multipotent stem cell activity under cerebral *** study examined the effects of electroacupuncture(EA)therapy(2 Hz,1 or 3 mA,20 minutes)at the Sishencong acupoint on motor function after ischemic insult in the brain by investigating the rehabilitative potential of NG2-derived cells in a mouse model of ischemic *** stimulation alleviated motor deficits caused by ischemic stroke,and 1 mA EA stimulation was more efficacious than 3 mA EA stimulation or positive control treatment with edaravone,a free radical *** properties of NG2-expressing cells were altered with 1 mA EA stimulation,enhancing their survival in perilesional brain tissue via reduction of tumor necrosis factor alpha *** stimulation robustly activated signaling pathways related to proliferation and survival of NG2-expressing cells and increased the expression of neurotrophic factors such as brain-derived neurotrophic factor,tumor growth factor beta,and neurotrophin *** the perilesional striatum,EA stimulation greatly increased the number of NG2-expressing cells double-positive for oligodendrocyte,endothelial cell,and microglia/macrophage markers(CC1,CD31,and CD68).EA therapy also greatly activated brain-derived neurotrophic factor/tropomyosin receptor kinase B and glycogen synthase kinase 3 beta *** results indicate that EA therapy may prevent functional loss at the perilesional site by enhancing survival and differentiation of NG2-expressing cells via the activation of brain-derived neurotrophic factor-induced signaling,subsequently ameliorating motor *** animal experiments were approved by the Animal Ethics Committee of Pusan National University(approval ***2019-2199 and PNU2019-2884)on April 8,2019 and June 19,2019.

关键词： brain-derived neurotrophic factor differentiation electroacupuncture motor function neural/glial antigen 2 perilesional striatum stroke survival

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A novel chitosan nanocapsule for enhanced skin penetration of cyclosporin A and effective hair growth in vivo

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Nano Research 2019年第12期12卷 3024-3030页

作者： Jin Sil Lee Youngmin hwang Hyeryeon Oh Sunghyun kim Jin-hwa kim Jeung-Hoon Lee Yong Chui Shin Giyoong tae Won II Choi Center for Convergence Bioceramic Materials Convergence R&D DivisionKorea Institute of Ceramic Engineering and Technology202Osongsaengmyeong l-rof Osong-eupHeungdeok-guCheongjuChungbuk 28160Republic of Korea School of Materials Science and Engineering Gwangju Institute of Science and Technology123 Cheomdan-gwagiroBuk-guGwangju 61005Republic of Korea SKINMED Co. Ltd.Daejeon 34028Republic of Korea Amicogen Inc.64 Dongburo 1259JinsungJinju 52621Republic of Korea

Hair loss due to medical conditions,such as alopecia,male pattern baldness,and cancer chemotherapy treatment,has been a comm onproblem for many in *** n A(CsA),a fungal metabolite,has been reported to be a hair growth modulatory agent and is apotential drug for hair ***,the effect of topical application of CsA is limited by its poor water *** deliverysystems developed to enhance its solubility still showed poor skin *** overcome these limitations,in this study,we have developed a novel chitosan nanocapsule platform using Pluro nic F127 and chitosan without any chemical crosslinking or complicated preparati on steps for the enhanced water solubility and high tran sdermal penetration of *** chitosan nanocapsules(ChiNCs)optimized in terms of structural stability by using chitosan with various molecular weights ranging from 3 to 100 kDa enhanced the skin permeation of CsA through humancadaver skin in *** administration of the CsA loaded ChiNCs in creased the hair follicles by c.a.7 times higher than that of thecontrol group,and effectively induced hair growth in C57BL/6 mice in *** results suggest that ChiNCs could be used as a platform foreffective transdermal delivery of various hydrophobic drugs.

关键词： chitosan nanocapsule cyclosporin A transdermal delivery hair growth

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Delayed hypersensitivity reaction resulting in maculopapular-type eruption due to entecavir in the treatment of chronic hepatitis B

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World Journal of Gastroenterology 2014年第42期20卷 15931-15936页

作者： Jeong tae kim Hye Won Jeong Ki hwa Choi tae Young Yoon Nohyun Sung Young Ki Choi Eun Ha kim Hee Bok Chae Department of Internal Medicine College of Medicine and Medical Research Institute Chungbuk National University Department of Dermatology College of Medicine and Medical Research Institute Chungbuk National University Department of Pathology College of Medicine and Medical Research Institute Chungbuk National University Department of Microbiology College of Medicine and Medical Research Institute Chunguk National University

Several clinical trials have demonstrated the potent antiviral efficacy of entecavir (ETV), and this relatively new nucleoside analogue drug has rapidly become a frequently prescribed therapy for chronic hepatitis B (CHB) worldwide. While the studies have also shown a good overall safety profile for ETV, adverse drug reactions (ADRs) in patients with advanced cirrhosis have been reported and represent a broad spectrum of drug-induced injuries, including lactic acidosis, myalgia, neuropathy, azotemia, hypophosphatemia, muscular weakness, and pancreatitis, as well as immune-mediated responses (i.e., allergic reactions). Cutaneous ADRs associated with ETV are very rare, with only two case reports in the publicly available literature; both of these cases were classified as unspecified hypersensitivity allergic (type I) ADR, but neither were reported as pathologically proven or as evaluated by cytokine release analysis. Here, we report the case of a 45-year-old woman who presented with a generalized maculopapular rash after one week of ETV treatment for lamivudine-resistant CHB. The patient reported having experienced a similar skin eruption during a previous three-month regimen of ETV, for which she had self-discontinued the medication. Histopathological analysis of a skin biopsy showed acanthotic epidermis with focal parakeratosis and a perivascular lymphocytic infiltrate admixed with interstitial eosinophils in the papillary and reticular dermis, consistent with a diagnosis of drug sensitivity. A lymphocyte stimulation test showed significantly enhanced IL-4, indicating a classification of type IVb delayed hypersensitivity. The patient was switched to an adefovir-lamivudine combination regimen and the skin eruption resolved two weeks after the ETV withdrawal. This case represents the first pathologically and immunologically evidenced ETV-induced delayed type hypersensitivity skin reaction reported to date. Physicians should be aware of the potential, although rare, fo

关键词： Entecavir Delayed type hypersensitivity Maculopapular drug eruption Dermatology Adverse drug reaction Chronic hepatitis B

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Characterization of Ceramic Composite-Membranes Prepared by ORMOSIL Coating Sol

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Journal of Rare Earths 2004年第Z2期22卷 136-140页

作者： Goo-Dae kim tae-Bong kim School of New Materials Science and Engineering Yonsei UniversitySeoul 120-749Korea Division of MaterialsKorea Institute Science and TechnologySeoul 136-791Korea

Sol-gel methods offer many advantages over conventional slip-casting, including the ability to produce ceramic membranes. They are purer, more homogeneous, more reactive and contain a wider variety of compositions. We produced ormosil sol using sol-gel process under different molecular weight of polymer species [polyethylene glycol (PEG) ] in total system [Tetraethyl ortho silicate(TEOS)-polyethylene glycol (PEG)]. The properties of as-prepared ormosil sol such as,viscosity, gelation time were characterized. Also, the ceramic membrane was prepared by dip-coating with synthetic sol and its micro-structure was observed by scanning electron microscopy. The permeability and rejection efficiency of membrane for oil/water emulsion were evaluated as cross-flow apparatus. The ormosil sol coated Membrane is easily formed by steric effect of polymer and it improves flux efficiency because infiltration into porous support decreased. Its flux efficiency is elevated about 200(1/m2·h) compared with colloidal sol coated membrane at point of five minutes from starting test.

关键词： ORMOSIL sol crack Resistance ultra-filter micro-filter

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A 2-Dimensional Micro Flow Sensor with Wide Range Flow Sensing Properties

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稀有金属材料与工程 2006年第A3期35卷 590-594页

作者： tae-Yong kim Division of Computer and Information Engineering Dongseo UniversityBusan 617-716Korea

A new silicon micro flow sensor with multiple temperature sensing elements was proposed and numerically simulated in considering wide range flow measuring *** micro flow sensor has three pairs of temperature sensing elements with a central heater compared with typical sensor which has only a temperature sensing element on each side of a central heater.A numerical analysis of the micro flow sensor by Finite Difference Formulation for Heat Transfer Equation was *** nearest pair of temperature sensor showed very good linear sensitivity between 0 to 0.4m/s flow and saturated from 0.75m/s *** the furthest pair of temperature sensor showed some flow sensitivity even though the flow rate of 2.0m/***,this suggested new micro flow meter with multiple temperature sensing elements could be used as a thermal mass flow sensor which has accuracy sensitivity for very wide flow range.

关键词： micro sensor silicon sensor flow sensor 2-D micro flow sensor thermal simulation FDM

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Integrated guidance and control for damping augmented system via convex optimization

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Chinese Journal of Aeronautics 2022年第7期35卷 30-39页

作者： Bong-Gyun PARK tae-Hun kim The 1^(st)R&D Institute-4 Agency for Defense DevelopmentDaejeon 34186Republic of Korea

In this paper,an integrated guidance and control approach is presented to improve the performance of the missile *** approach includes damping augmented system with attitude rate feedback to decrease the oscillation during the homing phase for missiles with low *** addition,physical constraints,which can affect the performance of the missile interception,such as acceleration limit,seeker’s look angle,and look angle rate constraints are *** integrated guidance and control problem is formulated as a convex quadratic optimization problem with equality and inequality constraints,and the solution is obtained by a primal–dual interior point *** performance of the proposed method is verified through several numerical examples.

关键词： Convex optimization Damping augmented system Integrated guidance and control Physical constraint Primal-dual interior point method

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Subacute electroacupuncture at Baihui (GV 20) and Dazhui (GV 14) promotes post-stroke functional recovery via neurogenesis and astrogliosis in a photothrombotic stroke mouse model

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Journal of Traditional Chinese Medicine 2019年第6期39卷 833-841页

作者： Young-Wook Park Gi Yoon Heo Min Jae kim Seo-Yeon Lee Byung tae Choi hwa Kyoung Shin Division of Meridian and Structural Medicine School of Korean MedicinePusan National UniversityYangsanGyeongnam 50612Republic of Korea Department of Korean Medical Science School of Korean MedicinePusan National UniversityYangsanGyeongnam 50612Republic of Korea Graduate Training Program of Korean Medicine for Healthy-Aging Pusan National UniversityYangsanGyeongnam 50612Republic of Korea Korean Medical Science Research Center for Healthy-Aging Pusan National UniversityYangsanGyeongnam 50612Republic of Korea

OBJECTIVE:To investigate the optimal timing and underlying mechanism of electroacupuncture(EA)at Baihui(GV 20)and Dazhui(GV 14)for improved long-term functional recovery after focal cerebral ischemia in a photothrombotic stroke mouse ***:Totally 50 adult male C57 BL/6 J mice were assigned into 5 groups:(a)the control group,sham-operated mice(n=10);(b)the vehicle group,focal cerebral ischemia induction without EA(n=10);(c)the acute EA group,mice received EA immediately post-ischemia,followed by once-daily treatments for 7 consecutive days(n=10);(d)the subacute EA group,mice received EA 4 days post-ischemia,followed by once-daily treatments for 7 consecutive days(n=10);(e)the delayed EA *** stimulation(2 Hz,2 V for 20 min)was applied to acupuncture points(acupoints),Baihui(GV 20)and Dazhui(GV 14),once a day for 7 consecutive days beginning immediately(acute treatment),4 d(subacute treatment)and 10 d(delayed treatment)after focal cerebral ischemia in C57 BL/6 J *** assessments were conducted 21 and 28 d post-ischemia and histopathological analyses were performed 28 days ***:The subacute EA treatment at Baihui(GV20)and Dazhui(GV 14)significantly improved functional recovery compared to the vehicle group 28 d after ischemic brain injury,although brain atrophy was not *** number of Neu N+and Neu N+/Brd U+cells as well as GFAP intensity in the ipsilateral cortex were significantly increased in the subacute group compared to the vehicle group 28 d *** concluded that EA stimulation 4 d post-ischemia(subacute treatment)enhanced neurogenesis and astrogliosis,likely contributing to long-term functional recovery following focal cerebral ***:Our findings suggest that the timing of the EA therapy at Baihui(GV 20)and Dazhui(GV 14)determines the therapeutic effects in mice with focal cerebral ischemia induced by photothrombotic occlusion.

关键词： Electroacupuncture Stroke Astrocytes Neurogenesis Post-stroke remodeling

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