1.In Vivo Differentiation of Endogenous Bone Marrow-Derived Cells into Insulin-Producing Cells Using Four Soluble Factors
Seung-Ah LEE ; Subin KIM ; Seog-Young KIM ; Jong Yoen PARK ; Hye Seung JUNG ; Sung Soo CHUNG ; Kyong Soo PARK
Diabetes & Metabolism Journal 2025;49(1):150-159
Four soluble factors—putrescine, glucosamine, nicotinamide, and signal transducer and activator of transcription 3 (STAT3) inhibitor BP-1-102—were shown to differentiate bone marrow mononucleated cells (BMNCs) into functional insulin-producing cells (IPCs) in vitro. Transplantation of these IPCs improved hyperglycemia in diabetic mice. However, the role of endogenous BMNC regeneration in this effect was unclear. This study aimed to evaluate the effect of these factors on in vivo BMNC differentiation into IPCs in diabetic mice. Mice were orally administered the factors for 5 days, twice at 2-week intervals, and monitored for 45–55 days. Glucose tolerance, glucose-stimulated insulin secretion, and pancreatic insulin content were measured. Chimeric mice harboring BMNCs from insulin promoter luciferase/green fluorescent protein (GFP) transgenic mice were used to track endogenous BMNC fate. These factors lowered blood glucose levels, improved glucose tolerance, and enhanced insulin secretion. Immunostaining confirmed IPCs in the pancreas, showing the potential of these factors to induce β-cell regeneration and improve diabetes treatment.
2.In Vivo Differentiation of Endogenous Bone Marrow-Derived Cells into Insulin-Producing Cells Using Four Soluble Factors
Seung-Ah LEE ; Subin KIM ; Seog-Young KIM ; Jong Yoen PARK ; Hye Seung JUNG ; Sung Soo CHUNG ; Kyong Soo PARK
Diabetes & Metabolism Journal 2025;49(1):150-159
Four soluble factors—putrescine, glucosamine, nicotinamide, and signal transducer and activator of transcription 3 (STAT3) inhibitor BP-1-102—were shown to differentiate bone marrow mononucleated cells (BMNCs) into functional insulin-producing cells (IPCs) in vitro. Transplantation of these IPCs improved hyperglycemia in diabetic mice. However, the role of endogenous BMNC regeneration in this effect was unclear. This study aimed to evaluate the effect of these factors on in vivo BMNC differentiation into IPCs in diabetic mice. Mice were orally administered the factors for 5 days, twice at 2-week intervals, and monitored for 45–55 days. Glucose tolerance, glucose-stimulated insulin secretion, and pancreatic insulin content were measured. Chimeric mice harboring BMNCs from insulin promoter luciferase/green fluorescent protein (GFP) transgenic mice were used to track endogenous BMNC fate. These factors lowered blood glucose levels, improved glucose tolerance, and enhanced insulin secretion. Immunostaining confirmed IPCs in the pancreas, showing the potential of these factors to induce β-cell regeneration and improve diabetes treatment.
3.In Vivo Differentiation of Endogenous Bone Marrow-Derived Cells into Insulin-Producing Cells Using Four Soluble Factors
Seung-Ah LEE ; Subin KIM ; Seog-Young KIM ; Jong Yoen PARK ; Hye Seung JUNG ; Sung Soo CHUNG ; Kyong Soo PARK
Diabetes & Metabolism Journal 2025;49(1):150-159
Four soluble factors—putrescine, glucosamine, nicotinamide, and signal transducer and activator of transcription 3 (STAT3) inhibitor BP-1-102—were shown to differentiate bone marrow mononucleated cells (BMNCs) into functional insulin-producing cells (IPCs) in vitro. Transplantation of these IPCs improved hyperglycemia in diabetic mice. However, the role of endogenous BMNC regeneration in this effect was unclear. This study aimed to evaluate the effect of these factors on in vivo BMNC differentiation into IPCs in diabetic mice. Mice were orally administered the factors for 5 days, twice at 2-week intervals, and monitored for 45–55 days. Glucose tolerance, glucose-stimulated insulin secretion, and pancreatic insulin content were measured. Chimeric mice harboring BMNCs from insulin promoter luciferase/green fluorescent protein (GFP) transgenic mice were used to track endogenous BMNC fate. These factors lowered blood glucose levels, improved glucose tolerance, and enhanced insulin secretion. Immunostaining confirmed IPCs in the pancreas, showing the potential of these factors to induce β-cell regeneration and improve diabetes treatment.
4.In Vivo Differentiation of Endogenous Bone Marrow-Derived Cells into Insulin-Producing Cells Using Four Soluble Factors
Seung-Ah LEE ; Subin KIM ; Seog-Young KIM ; Jong Yoen PARK ; Hye Seung JUNG ; Sung Soo CHUNG ; Kyong Soo PARK
Diabetes & Metabolism Journal 2025;49(1):150-159
Four soluble factors—putrescine, glucosamine, nicotinamide, and signal transducer and activator of transcription 3 (STAT3) inhibitor BP-1-102—were shown to differentiate bone marrow mononucleated cells (BMNCs) into functional insulin-producing cells (IPCs) in vitro. Transplantation of these IPCs improved hyperglycemia in diabetic mice. However, the role of endogenous BMNC regeneration in this effect was unclear. This study aimed to evaluate the effect of these factors on in vivo BMNC differentiation into IPCs in diabetic mice. Mice were orally administered the factors for 5 days, twice at 2-week intervals, and monitored for 45–55 days. Glucose tolerance, glucose-stimulated insulin secretion, and pancreatic insulin content were measured. Chimeric mice harboring BMNCs from insulin promoter luciferase/green fluorescent protein (GFP) transgenic mice were used to track endogenous BMNC fate. These factors lowered blood glucose levels, improved glucose tolerance, and enhanced insulin secretion. Immunostaining confirmed IPCs in the pancreas, showing the potential of these factors to induce β-cell regeneration and improve diabetes treatment.
5.Ipsilateral Lymphadenopathy After COVID-19 Vaccination in Patients With Newly Diagnosed Breast Cancer
Su Min HA ; Jong-Ho CHEUN ; Su Hyun LEE ; Soo-Yeon KIM ; Ah Reum PARK ; Yeon Soo KIM ; Heera YOEN ; Youkyoung LEE ; Nariya CHO ; Woo Kyung MOON ; Jung Min CHANG
Journal of Breast Cancer 2022;25(2):131-139
This study aimed to evaluate the imaging and pathological findings in axillary lymph nodes in patients with breast cancer who received concurrent ipsilateral coronavirus disease 2019 (COVID-19) vaccination. Of the 19 women with breast cancer who received concurrent COVID-19 vaccination shot in the arm ipsilateral to breast cancer, axillary lymphadenopathy was observed in 84.2% (16 of 19) of patients on ultrasound (US) and 71.4% (10 of 14) of patients on magnetic resonance imaging (MRI), and 21.0% (4 of 19) of patients were diagnosed with metastasis. Abnormal US and MRI findings of cortical thickening, effacement of the fatty hilum, round shape, and asymmetry in the number or size relative to the contralateral side were noted in more than half of the non-metastatic and metastatic lymph nodes; however, statistical significance was not noted. Axillary lymphadenopathy is commonly observed in patients with breast cancer who receive concurrent ipsilateral COVID-19 vaccination without specific differential imaging features. Thus, understanding the limitations of axillary imaging and cautious interpretation is necessary to avoid overestimation or underestimation of the axillary disease burden.
6.Orthodontic protraction of the third molars to the posterior teeth missing area
Kang gyu LEE ; Je Hyeok PARK ; Jin JEON ; Jae Yoen KANG ; Jong Ghee KIM ; Young Mi JEON
Journal of Dental Rehabilitation and Applied Science 2019;35(4):260-269
The prolonged neglect of the posterior teeth missing area may cause mesial drift, extrusion, unexpected movement of the adjacent teeth and alveolar bone loss with occlusion collapse. Therefore it is recommended to treat that area by the prosthesis as soon as possible after tooth missing. However, if orthodontic treatment is applied to move the remained teeth, it can create improved biomechanical dentoalveolar environment. The use of the third molars in teeth missing area provides advantages as optimizing of prosthesis size. However, crown shape, location, soundness of the third molar and possible of eruption failure should be considered. In this case report, two patients closed a second teeth missing site and reduced the size of the first and second teeth missing area for an implant by protraction of impacted third molars. This case reports the considerations for closing or reducing the posterior teeth space with protracting the third molars by comparing two patients.
7.Effects of Two Music Therapy Methods on Agitation and Anxiety among Patients Weaning off Mechanical Ventilation: A Pilot Study
Journal of Korean Academy of Fundamental Nursing 2019;26(2):136-143
PURPOSE: The feasibility and differential effects of two music therapy methods (interventions with preferred music vs. classical relaxation music) were done to examine the effects on agitation and anxiety in patients weaning off mechanical ventilation. METHODS: This pilot study was conducted using a crossover design. Six patients listened to preferred music choices and classical relaxation music. Anxiety scores were measured using the Richmond Agitation Sedation Scale (RASS), State-Trait Anxiety Inventory (STAI), and visual analog scale (VAS). RESULTS: Patients showed a significant decrease in agitation and anxiety after both the preferred and classical relaxation music interventions. The difference in the effects of preferred music and that of classical relaxation music was not significant. As for feasibility, patients exhibited a change in agitated behaviors after the music interventions by not trying to take off medical devices and quietly listening to the music, and by smiling and moving lips along with the lyrics while listening. CONCLUSION: Music interventions which centered on either patients' preferences or classical relaxation music to enhance relaxation, helped reduce agitation and anxiety during the mechanical ventilation weaning process.
Anxiety
;
Cross-Over Studies
;
Dihydroergotamine
;
Humans
;
Lip
;
Methods
;
Music Therapy
;
Music
;
Pilot Projects
;
Relaxation
;
Respiration, Artificial
;
Smiling
;
Ventilation
;
Visual Analog Scale
;
Weaning
8.Amebic liver abscesses resulting in diagnosis of human immunodeficiency virus infection.
Seok Weon KIM ; Hyeok Choon KWON ; Seung Woo NAM ; Jong Kyung CHOI ; Joo Won CHUNG ; Dong Won JANG ; Soo Yoen PARK
Yeungnam University Journal of Medicine 2017;34(1):96-100
Amebic liver abscess (ALA) is the most common extraintestinal manifestation of amebiasis. Amebiasis, a parasitic infection caused by Entamoeba histolytica, used to be a prevalent protozoan disease in Korea, however, with an improving sanitary system, it has been among very uncommon etiology of liver abscess. A recent report suggested that ALA is an emerging parasitic infection in human immunodeficiency virus (HIV)-infected patients even in areas where the disease is not endemic and recommended HIV screening in patients in areas where ALA is not endemic, particularly those without history of travel to a disease-endemic area. We report on two patients who were admitted for treatment of ALA and then diagnosed as HIV infection. We also reviewed the etiology and characteristics of ALA in our hospital during the last 5 years.
Amebiasis
;
Diagnosis*
;
Entamoeba histolytica
;
HIV Infections
;
HIV*
;
Humans*
;
Korea
;
Liver Abscess
;
Liver Abscess, Amebic*
;
Mass Screening
9.Amebic liver abscesses resulting in diagnosis of human immunodeficiency virus infection
Seok Weon KIM ; Hyeok Choon KWON ; Seung Woo NAM ; Jong Kyung CHOI ; Joo Won CHUNG ; Dong Won JANG ; Soo Yoen PARK
Yeungnam University Journal of Medicine 2017;34(1):96-100
Amebic liver abscess (ALA) is the most common extraintestinal manifestation of amebiasis. Amebiasis, a parasitic infection caused by Entamoeba histolytica, used to be a prevalent protozoan disease in Korea, however, with an improving sanitary system, it has been among very uncommon etiology of liver abscess. A recent report suggested that ALA is an emerging parasitic infection in human immunodeficiency virus (HIV)-infected patients even in areas where the disease is not endemic and recommended HIV screening in patients in areas where ALA is not endemic, particularly those without history of travel to a disease-endemic area. We report on two patients who were admitted for treatment of ALA and then diagnosed as HIV infection. We also reviewed the etiology and characteristics of ALA in our hospital during the last 5 years.
Amebiasis
;
Diagnosis
;
Entamoeba histolytica
;
HIV Infections
;
HIV
;
Humans
;
Korea
;
Liver Abscess
;
Liver Abscess, Amebic
;
Mass Screening
10.Otologic and Audiologic Characteristics in Children with Turner Syndrome.
Hee Tack PARK ; Jong Min LEE ; Jin YOON ; Moon Jun KIM ; Yoen Sup YOON ; Hyun Doo LEE ; Sang Soo SO ; Dae Yeol LEE ; Min Sun KIM ; Sam Hyun KWON ; Yong Joo YOON ; Eun Jung LEE
Korean Journal of Otolaryngology - Head and Neck Surgery 2012;55(9):552-558
BACKGROUND AND OBJECTIVES: Turner syndrome (TS) is known to be caused by a total or partial deletion of one X-chromosome. Besides short stature and failure to enter puberty due to ovarian dysgenesis, auricular malformations, middle ear diseases and hearing impairment are also other clinical features of Turner syndrome. The goal of this study is to report otologic and audiologic characteristics in a group of children with Turner syndrome and correlate with these findings to karyotype. SUBJECTS AND METHOD: We retrospectively reviewed the outpatient charts of those who visited at our department for otologic and audiologic screening test between 2008 and 2011. All 23 TS children (46 ears) were enrolled under regular control of their pediatric endocrinologist for treatment with growth hormon and Estrogen. The mean age was 12.6 years (6-24 years). All children were evaluated by otologic history taking, otoscopy, pure tone audiometry and karyotyping. Furthermore, 16 children undertook auditory brain stem response (ABR) test and 10 children temporal bone computed tomography (CT). RESULTS: Abnormal otoscopic findings were found in 48% (22 ears), abnormal otologic history in 70% (16 children), and abnormal audiologic findings in 70% (32 ears). According to karyotyping, the total p-arm deletion group (74%) showed unfavorable audiologic results. ABR test and temporal bone CT did not show any unique findings, except five poor pneumatization of mastoid. CONCLUSION: Hearing impairment can be present at early age in Turner syndrome. Careful follow up during childhood is necessary to detect early ear and hearing problems for active intervention. Karyotype may be used as a predictor for future hearing impairment.
Audiology
;
Audiometry
;
Child
;
Ear
;
Ear Diseases
;
Ear, Middle
;
Estrogens
;
Evoked Potentials, Auditory, Brain Stem
;
Hearing
;
Hearing Loss
;
Humans
;
Karyotype
;
Karyotyping
;
Mass Screening
;
Otoscopy
;
Outpatients
;
Puberty
;
Retrospective Studies
;
Temporal Bone
;
Turner Syndrome

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