Jee Young Kim

Dankook University, Eidō, Chungcheongbuk-do, South Korea

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Publications (49)97.69 Total impact

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    Yonsei Medical Journal 01/2015; 56(1):307-8. DOI:10.3349/ymj.2015.56.1.307 · 1.26 Impact Factor
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    ABSTRACT: A 75-year-old man presented with multiple, scaly, erythematous, grouped papules, nodules and plaques with tenderness ranging from the right forearm to hand dorsum and the right lower leg for 2–3 months. Five months prior to presentation, the patient had received an antibiotic skin test on his right forearm. Lesions appeared approximately 2–3 months after the antibiotic skin test, slowly progressing without clinical improvement. Culture for fungus on the right forearm revealed growth of Scedosporium apiospermum. The tissue acid-fast bacilli (AFB) culture for the right forearm and right leg revealed growth of non-tuberculous mycobacteria which was Mycobacterium chelonae, and subsequent tissue polymerase chain reaction of both sites reported positive signs of M. chelonae. On diastase periodic acid-Schiff stain of the biopsy specimen of the right forearm, fungal hyphae were found while rod-shaped bacilli could be seen in AFB stain for the biopsy specimen of the right leg. The patient was treated with oral clarithromycin and ciprofloxacin along with an oral antifungal agent for 13 weeks. After the treatment, the lesions subsided and left a scar. We report a rare case of co-infection of S. apiospermum and M. chelonae in an immunocompetent host.
    The Journal of Dermatology 09/2014; 41(10). DOI:10.1111/1346-8138.12601 · 2.35 Impact Factor
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    Annals of Dermatology 04/2014; 26(2):258-60. DOI:10.5021/ad.2014.26.2.258 · 0.95 Impact Factor
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    ABSTRACT: Background/Aims: Demonstrating the molecular mechanisms of human adipose tissue-derived mesenchymal stem cells (hADSCs) differentiation and proliferation could develop hADSCs-based cell therapy. Methods: The microRNA-137 (miR-137) and cell division control protein 42 homolog (CDC42) levels were regulated by oligonucleotides transfection. The adipogenic differentiation was induced for 10 days in an adipogenic medium and assessed by using an Oil Red O stain. The regulation of miR-137 on CDC42 expression was determined by western blot, real-time PCR and luciferase reporter assay. Results: We confirmed the roles of miR-137 on hADSCs proliferation and adipogenic differentiation. We showed that overexpression of miR-137 inhibited both hADSCs proliferation and adipogenic differentiation. Overexpression of miR-137 also downregulated protein and mRNA levels of CDC42, a predicted target of miR-137. In contrast, inhibition of miR-137 with 2'-O-methyl antisense RNA increased proliferation and adipogenic differentiation in hADSCs. Luciferase reporter activity in the miR-137 target site within the CDC42 3'UTR was lower in miR-137-transfected hADSCs than in control miRNA-transfected hADSCs. RNA interference-mediated downregulation of CDC42 in hADSCs inhibited their proliferation and adipogenic differentiation. Conclusion: Our results indicate that miR-137 regulates hADSCs adipogenic differentiation and proliferation by directly targeting CDC42. These findings improve our knowledge of the molecular mechanisms governing hADSCs differentiation and proliferation. © 2014 S. Karger AG, Basel.
    Cellular Physiology and Biochemistry 03/2014; 33(3):758-768. DOI:10.1159/000358650 · 3.55 Impact Factor
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    ABSTRACT: Background/Aims: The aim of this study was to analyze the effect of BMP2 on osteogenic differentiation of human adipose tissue-derived stromal cells (hADSCs). Methods: Cultured cells were differentiated into osteogenic lineage in the presence of BMP2. Gene expressions were determined by real time PCR. Results: BMP2 increased (2/8) or inhibited (6/8) osteogenic differentiation according to hADSCs batches. Regardless of the BMP2 action on osteogenic differentiation, BMP2 induced lipid droplet formation under an osteogenic differentiation condition in all batches of hADSCs, not hBMSCs, to be tested, which was confirmed by analysis of adipogenesis related genes expression. hADSCs expressed various BMP receptors. BMP2 increased expression of BMP2-responsive genes such as DLX3 and ID2, and induced SMAD1 phosphorylation in hADSCs and hBMSCs. BMP2 increased osteogenic differentiation of hADSCs in osteogenic medium in which dexamethasone was omitted. The addition of BMP2 in the control culture media containing dexamethasone alone lead to formation of lipid droplets and increased C/EBP-alpha expression in hADSCs. In the presence of TNF-alpha, BMP2 stimulated osteogenic differentiation of hADSCs even in hADSCs batches in which treatment of BMP2 alone inhibited osteogenic differentiation. Conclusion: These data indicate that the control of osteogenesis and adipogenesis in hADSCs is closely related, and that hADSCs have preferential commitment to adipogenic lineages. (C) 2014 S. Karger AG, Basel
    Cellular Physiology and Biochemistry 01/2014; 34(4):1339-50. DOI:10.1159/000366341 · 3.55 Impact Factor
  • The Journal of Dermatology 12/2013; 41(1). DOI:10.1111/1346-8138.12319 · 2.35 Impact Factor
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    ABSTRACT: For topical applications in wound healing, silver nanoparticles (AgNPs) have attracted much attention as antibacterial agents. Herein, we describe a green-synthetic route for the production of biocompatible and crystalline AgNPs using two glycosaminoglycans, chondroitin sulfate (CS) and acharan sulfate (AS), as reducing agents. The synthetic approach avoids the use of toxic chemicals, and the yield of AgNPs formation is found to be 98.1% and 91.1% for the chondroitin sulfate-reduced silver nanoparticles (CS-AgNPs) and the acharan sulfate-reduced silver nanoparticles (AS-AgNPs), respectively. Nanoparticles with mostly spherical and amorphous shapes were observed, with an average diameter of 6.16 ± 2.26 nm for CS-AgNPs and 5.79 ± 3.10 nm for AS-AgNPs. Images of the CS-AgNPs obtained from atomic force microscopy revealed the self-assembled structure of CS was similar to a densely packed woven mat with AgNPs sprinkled on the CS. These nanoparticles were stable under cell culture conditions without any noticeable aggregation. An approximately 128-fold enhancement of the antibacterial activities of the AgNPs was observed against Enterobacter cloacae and Escherichia coli when compared to CS and AS alone. In addition, an in vivo animal model of wound healing activity was tested using mice that were subjected to deep incision wounds. In comparison to the controls, the ointments containing CS-AgNPs and AS-AgNPs stimulated wound closure under histological examination and accelerated the deposition of granulation tissue and collagen in the wound area. The wound healing activity of the ointments containing CS-AgNPs and AS-AgNPs are comparable to that of a commercial formulation of silver sulfadiazine even though the newly prepared ointments contain a lower silver concentration. Therefore, the newly prepared AgNPs demonstrate potential for use as an attractive biocompatible nanocomposite for topical applications in the treatment of wounds.
    Nanotechnology 09/2013; 24(39):395102. DOI:10.1088/0957-4484/24/39/395102 · 3.67 Impact Factor
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    ABSTRACT: Despite the increasing use of topical tacrolimus, there is little information about its effect on skin wound healing. To determine effects on acute cutaneous wound healing, two full-thickness skin wounds were imparted on the backs of 45 hairless mice, which were then divided into vehicle-, topical tacrolimus- and topical steroid-treated group. Each drug was topically applied once daily. The wound area was assessed by using dermoscopic images every two days after wounding. At 3, 7 and 11 days after wounding, 10 wounds in each group were collected for semi-quantitative analysis of histological features including re-epithelialization, polymorphonuclear leucocytes, fibroblasts and collagen. We also checked the mRNA expression levels of EGF, TGF-β, TNF-α and IL-1α. While topical application of clobetasol propionate was found to delay re-epithelialization and infiltration of polymorphonuclear leucocyte, topical treatment with tacrolimus showed patterns similar to that of the vehicle. In the tacrolimus-treated group, mRNA expression levels of IL-1α and TGF-β were slightly decreased, while the others were similar with the vehicle-treated group. Unlike steroid, topical tacrolimus, therefore, did not disturb the wound healing process in a murine skin wound model.
    Experimental Dermatology 05/2013; 22(5):369-71. DOI:10.1111/exd.12131 · 4.12 Impact Factor
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    ABSTRACT: BACKGROUND: Despite a few experimental studies showing a dose-dependent myocardial depressive effect of propofol anesthesia induction, few clinical data are available to determine its precise impact on myocardial function, probably because of its brevity and a lack of appropriate evaluation tools. The purpose of this study was to examine the impact of propofol-based anesthesia induction on left ventricular (LV) function using Doppler tissue and speckle-tracking imaging. METHODS: In 19 low-risk patients with normal LV systolic and diastolic function undergoing noncardiac surgery (all women; mean age, 42 years), propofol bolus (2.0 mg/kg) was administered intravenously for anesthesia induction. LV ejection fraction, global peak systolic longitudinal strain, and tissue Doppler-derived indices of mitral annular velocity during systole (S'), early diastole (e'), and atrial contraction (a') were determined by intraoperative transthoracic echocardiography before and 1, 3, and 5 min after propofol bolus (T0, T1, T2, and T3, respectively). RESULTS: The following at T1, T2, and T3 were significantly less in magnitude than at T0: septal S' (5.61, 5.61, and 5.51 vs 7.60 cm/sec, P < .001), lateral S' (5.75, 5.89, and 5.94 vs 8.12 cm/sec, P < .001), septal e' (10.10, 10.26, and 10.07 vs 11.4 cm/sec, P < .01), septal a' (6.70, 6.21, and 6.13 vs 8.58 cm/sec, P < .01), lateral a' (7.29, 6.81, and 6.85 vs 9.01 cm/sec, P < .01), and longitudinal strain (-19.36%, -19.71%, and -19.61% vs -22.28%, P < .001). LV ejection fraction was not significantly changed (P = .361). CONCLUSIONS: Propofol anesthesia induction diminished LV and atrial contraction in low-risk patients with prior normal LV function. Further studies are needed to understand the clinical implications, particularly for higher risk populations.
    Journal of the American Society of Echocardiography: official publication of the American Society of Echocardiography 04/2013; DOI:10.1016/j.echo.2013.03.016 · 2.98 Impact Factor
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    ABSTRACT: Extramammary Paget's disease (EMPD) is an uncommon intraepithelial adenocarcinoma, primarily affecting the apocrine-bearing skin. Bowen disease is an intraepithelial squamous cell carcinoma having the potential to become invasive carcinoma. The histopathological concomitant features between EMPD and Bowen disease have been described. One theory is that primary EMPD arises multicentrically, within the epidermis from the pluripotent stem cells. Herein, we describe a case of EMPD that had bowenoid features, and review the previous cases associated with the origin of EMPD.
    Annals of Dermatology 02/2013; 25(1):88-91. DOI:10.5021/ad.2013.25.1.88 · 0.95 Impact Factor
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    ABSTRACT: X-linked bulbospinal muscular atrophy (X-BSMA) is characterized by bulbar and spinal muscular weakness and fasciculations. Although X-BSMA is a motor neuronopathy, there are several reports of myasthenic symptoms or decremental responses to repetitive nerve stimulation (RNS). We report the results of applying the RNS test to 15 patients among 41 with genetically confirmed X-BSMA; these 15 patients complained of fatigue, ease of becoming tired, or early muscular exhaustion. The 3-Hz RNS test was performed on the trapezius, nasalis, orbicularis oculi, flexor carpi ulnaris, and abductor digiti quinti muscles. A decrement greater than 10% was considered abnormal. Additionally, a pharmacologic response to neostigmine was identified in three patients. A significant decrement was observed in 67% of patients, and was most common in the trapezius muscle (nine cases). The decrement of the trapezius muscle response ranged from 15.9% to 36.9%. The decrement was inversely correlated with the amplitude of compound muscle action potentials at rest. Neostigmine injection markedly improved the decrement in three patients, who showed noticeable decremental responses to 3-Hz RNS. This study shows that myasthenic symptoms and abnormal decremental responses to low-rate RNS are common in X-BSMA.
    Journal of Clinical Neurology 01/2013; 9(1):32-5. DOI:10.3988/jcn.2013.9.1.32 · 1.81 Impact Factor
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    ABSTRACT: Temporal triangular alopecia is a triangular or oval shaped non-scarring alopecia, occurring on the temporal side of a scalp. Although surgical excision or hair transplantation has been known to be an effective therapy for this condition, so far only a few case reports have proved their usefulness. A 27-year-old male patient presented with a history of congenital hair loss affecting left frontotemporal area which persisted after simple excision done 10 years ago. We transplanted 270 follicular units into the alopecic patch using follicular unit hair transplantation method. About 75% of alopecic patch was covered with newly grown hairs 15 months after hair transplantation and the patient was satisfied with the result. Herein, we report a case of temporal triangular alopecia which underwent both simple excision and hair transplantation, which provides information about the benefit and loss for each procedure.
    01/2013; 36(2):132. DOI:10.12771/emj.2013.36.2.132
  • Neurology India 11/2012; 60(6):653-5. DOI:10.4103/0028-3886.105210 · 1.08 Impact Factor
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    ABSTRACT: Mesenchymal stem cells (MSCs) have generated a great deal of interest in clinical situations, due principally to their potential use in regenerative medicine and tissue engineering applications. However, the therapeutic application of MSCs remains limited, unless the favorable effects of MSCs on tumor growth in vivo, and the long-term safety of the clinical applications of MSCs, can be more thoroughly understood. In this study, we determined whether microRNAs can modulate MSC-induced tumor outgrowth in BALB/c nude mice. Overexpression of miR-21 in human adipose-derived stem cells (hADSCs) inhibited hADSC-induced tumor growth, and inhibition of miR-21 increased it. Downregulation of transforming growth factor beta receptor II (TGFBR2), but not of signal transducer and activator of transcription 3, in hADSCs showed effects similar to those of miR-21 overexpression. Downregulation of TGFBR2 and overexpression of miR21 decreased tumor vascularity. Inhibition of miR-21 and the addition of TGF-β increased the levels of vascular endothelial growth factor and interleukin-6 in hADSCs. Transplantation of miR-21 inhibitor-transfected hADSCs increased blood flow recovery in a hind limb ischemia model of nude mice, compared with transplantation of control oligo-transfected cells. These findings indicate that MSCs might favor tumor growth in vivo. Thus, it is necessary to study the long-term safety of this technique before MSCs can be used as therapeutic tools in regenerative medicine and tissue engineering.
    Biochemical and Biophysical Research Communications 05/2012; 422(4):633-8. DOI:10.1016/j.bbrc.2012.05.040 · 2.28 Impact Factor
  • The Journal of Dermatology 03/2012; 39(9):811-2. DOI:10.1111/j.1346-8138.2012.01527.x · 2.35 Impact Factor
  • Animal cells and systems the official publication of the Zoological Society of Korea 12/2011; DOI:10.1080/19768354.2011.611172 · 0.35 Impact Factor
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    ABSTRACT: Darier's disease is a genetic disorder of keratinization with autosomal dominant inheritance. Its appearance is usually in the form of greasy, crusted, keratotic yellow-brown papules and plaques found particularly on seborrheic areas of the body. However, there are some clinical variants showing atypical skin lesions. Here we report an unusual case of Darier's disease, which mainly showed prominent comedonal papules over the face.
    Annals of Dermatology 12/2011; 23(Suppl 3):S398-401. DOI:10.5021/ad.2011.23.S3.S398 · 0.95 Impact Factor
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    Jee Young Kim, Kee Duk Park, David P Richman
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    ABSTRACT: The prognosis of myasthenia gravis (MG) has improved dramatically due to advances in critical-care medicine and symptomatic treatments. Its immunopathogenesis is fundamentally a T-cell-dependent autoimmune process resulting from loss of tolerance toward self-antigens in the thymus. Thymectomy is based on this immunological background. For MG patients who are inadequately controlled with sufficient symptomatic treatment or fail to achieve remission after thymectomy, remission is usually achieved through the addition of other immunotherapies. These immunotherapies can be classified into two groups: rapid induction and long-term maintenance. Rapid induction therapy includes intravenous immunoglobulin (IVIg) and plasma exchange (PE). These produce improvement within a few days after initiation, and so are useful for acute exacerbation including myasthenic crisis or in the perioperative period. High-dose prednisone has been more universally preferred for remission induction, but it acts more slowly than IVIg and PE, commonly only after a delay of several weeks. Slow tapering of steroids after a high-dose pulse offers a method of maintaining the state of remission. However, because of significant side effects, other immunosuppressants (ISs) are frequently added as "steroid-sparing agents". The currently available ISs exert their immunosuppressive effects by three mechanisms: 1) blocking the synthesis of DNA and RNA, 2) inhibiting T-cell activation and 3) depleting the B-cell population. In addition, newer drugs including antisense molecule, tumor necrosis factor alpha receptor blocker and complement inhibitors are currently under investigation to confirm their effectiveness. Until now, the treatment of MG has been based primarily on experience rather than gold-standard evidence from randomized controlled trials. It is hoped that well-organized studies and newer experimental trials will lead to improved treatments.
    Journal of Clinical Neurology 12/2011; 7(4):173-83. DOI:10.3988/jcn.2011.7.4.173 · 1.81 Impact Factor
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    ABSTRACT: Epilepsia partialis continua (EPC) is clinically defined as a syndrome of continuous focal jerking of a body part, usually a distal limb, occurring over hours, days, or even years. It is considered the status epilepticus equivalent of simple partial motor seizures. A 48-year-old right-handed man with a history of traumatic intracranial hemorrhage was admitted for right-sided hemiplegia and drowsiness after complex partial status epilepticus. An EEG showed periodic lateralized epileptiform discharges over the left hemisphere. Brain MRI revealed extensive multifocal encephalomalaciac changes in the left temporo-parieto-occpital lobe and both frontal lobes with some hemorrhagic residual change. After administration of a loading dose of intravenous phenytoin, his mental status returned to normal. However, his weakness only partially improved. [(18)F]Fluorodeoxyglucose PET (FDG-PET) demonstrated severe hypometabolism in the left cerebral hemisphere, including the basal ganglia and thalamus, with cerebellar diaschisis. At the 3-month follow-up, he complained of symptoms of alien hand phenomenon. Follow-up MRI revealed more extensive encephalomalaciac changes in previously noted regions with thinning of the posterior end of the body of the corpus callosum. Moreover, FDG-PET demonstrated persistent severe hypometabolism over the left cerebral hemisphere. We suggest that the alien hand phenomenon was a result of thinning of the corpus callosum related to EPC.
    Epilepsy & Behavior 11/2011; 23(1):71-3. DOI:10.1016/j.yebeh.2011.08.043 · 2.06 Impact Factor
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    ABSTRACT: Chondromyxoid fibroma is a rare benign primary bone tumor of cartilage. Despite a characteristic radiographic appearance, chondromyxoid fibroma with atypical radiographic findings may mimic more common tumors. To describe the MR findings of chondromyxoid fibroma. MR images of 19 histopathologically confirmed chondromyxoid fibromas were retrospectively analyzed for signal intensity, periosteal reaction, adjacent abnormal bone marrow and soft tissue signal, and patterns of contrast enhancement. All cases of chondromyxoid fibroma showed hypointense to intermediate signal intensity and internal hyperintense foci were observed in seven (37%) cases on T1-weighted images. On T2-weighted images, all lesions were hyperintense: peripheral intermediate signal band with central hyperintense signal in 11 (58%) of 19 lesions, whereas diffusely hyperintense with heterogeneous pattern in eight (42%). Periosteal reaction was observed in 11 (58%) of 19 cases. Adjacent abnormal bone marrow or soft tissue signal was observed in 12 (63%) or 14 (74%) of 19 cases, respectively. On contrast-enhanced T1-weighted images, peripheral nodular enhancement was observed in 69% (11/16) and diffuse contrast enhancement was observed in 31% (5/16) with homogeneous (n = 3) or heterogeneous (n = 2) patterns. Among the cases with peripheral nodular enhancement, the peripheral nodular enhancing portion generally corresponded to the peripheral intermediate signal band on T2-weighted images, although the peripheral enhancement was not as wide as a band of intermediate signal intensity. On the other hand, the central non-enhancing portion generally corresponded to the central hyperintense signal intensity on T2-weighted images. The helpful features of chondromyxoid fibroma are the peripheral intermediate signal band and central hyperintense signal on T2-weighted images, generally corresponding to the peripheral nodular enhancement and central non-enhancing portion on contrast-enhanced T1-weighted images, respectively.
    Acta Radiologica 08/2011; 52(8):875-80. DOI:10.1258/ar.2011.110180 · 1.35 Impact Factor

Publication Stats

317 Citations
97.69 Total Impact Points

Institutions

  • 2011–2015
    • Dankook University
      • Department of Dermatology
      Eidō, Chungcheongbuk-do, South Korea
    • Kwandong University
      • College of Medicine
      Gangneung, Gangwon, South Korea
  • 2014
    • Dankook University Hospital
      Anjŏ, Gyeonggi Province, South Korea
  • 2013
    • Seoul National University
      • Natural Products Research Institute
      Sŏul, Seoul, South Korea
  • 2011–2013
    • Myongji Hospital
      Kōyō, Gyeonggi Province, South Korea
  • 2009–2012
    • Pusan National University
      • • School of Medicine
      • • Department of Chemistry
      Tsau-liang-hai, Busan, South Korea
  • 2002–2011
    • Catholic University of Korea
      • • Department of Radiology
      • • College of Medicine
      Sŏul, Seoul, South Korea
  • 2010
    • Korea Food and Drug Administration
      Seishō-gun, North Gyeongsang, South Korea
  • 2007–2008
    • Ewha Womans University
      • Department of Neurology
      Sŏul, Seoul, South Korea
  • 2001
    • Sejong University
      • Faculty of Food Science and Technology
      Sŏul, Seoul, South Korea