1.Stem Cell Therapy for Neonatal Disorders: Prospects and Challenges.
Yun Sil CHANG ; So Yoon AHN ; Sein SUNG ; Won Soon PARK
Yonsei Medical Journal 2017;58(2):266-271
Despite recent advances in neonatal medicine, neonatal disorders, such as bronchopulmonary dysplasia and intraventricular hemorrhage in preterm neonates and hypoxic ischemic encephalopathy in term neonates, remain major causes of mortality and morbidities. Promising preclinical research results suggest that stem cell therapies represent the next breakthrough in the treatment of currently intractable and devastating neonatal disorders with complex multifactorial etiologies. This review focuses primarily on the potential role of stem cell therapy in the above mentioned neonatal disorders, highlighting the results of human clinical trials and the challenges that remain to be addressed for their safe and successful translation into clinical care of newborn infants.
Bronchopulmonary Dysplasia
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Hemorrhage
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Humans
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Hypoxia-Ischemia, Brain
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Infant, Newborn
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Mesenchymal Stromal Cells
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Mortality
;
Stem Cells*
2.Trends in Survival and Incidence of Bronchopulmonary Dysplasia in Extremely Preterm Infants at 23-26 Weeks Gestation.
Jin Kyu KIM ; Yun Sil CHANG ; Sein SUNG ; So Yoon AHN ; Hye Soo YOO ; Won Soon PARK
Journal of Korean Medical Science 2016;31(3):423-429
The aim of this study was to investigate the relationship between survival and incidence of bronchopulmonary dysplasia (BPD) in extremely premature infants, and identify clinical factors responsible for this association. Medical records of 350 infants at 23-26 weeks gestation from 2000 to 2005 (period I, n = 137) and 2006 to 2010 (period II, n = 213) were retrospectively reviewed. The infants were stratified into 23-24 and 25-26 weeks gestation, and the survival, BPD incidence, and clinical characteristics were analyzed. BPD was defined as oxygen dependency at 36 weeks postmenstrual age. The overall survival rate was significantly improved in period II compared to period I (80.3% vs. 70.0%, respectively; P = 0.028), especially in infants at 23-24 weeks gestation (73.9% vs. 47.4%, respectively; P = 0.001). The BPD incidence in survivors during period II (55.0%) was significantly decreased compared to period I (67.7%; P = 0.042), especially at 25-26 weeks gestation (41.7% vs. 62.3%, respectively; P = 0.008). Significantly improved survival at 23-24 weeks gestation was associated with a higher antenatal steroid use and an improved 5-minute Apgar score. A significant decrease in BPD incidence at 25-26 weeks gestation was associated with early extubation, prolonged use of less invasive continuous positive airway pressure, and reduced supplemental oxygen. Improved perinatal and neonatal care can simultaneously lead to improved survival and decreased BPD incidence in extremely premature infants.
Adult
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Bronchopulmonary Dysplasia/epidemiology/*mortality
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Demography
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Female
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Gestational Age
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Humans
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Incidence
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Infant, Extremely Premature
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Infant, Newborn
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Intensive Care Units, Neonatal
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Male
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Multivariate Analysis
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Odds Ratio
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Pregnancy
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Retrospective Studies
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Severity of Illness Index
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Survival Rate/*trends
3.Compositional Changes in the Gut Microbiota of Responders and Non-responders to Probiotic Treatment Among Patients With Diarrhea-predominant Irritable Bowel Syndrome: A Post Hoc Analysis of a Randomized Clinical Trial
Seung Yong SHIN ; Sein PARK ; Jung Min MOON ; Kisung KIM ; Jeong Wook KIM ; Jongsik CHUN ; Tae Hee LEE ; Chang Hwan CHOI ; The Microbiome Research Group of the Korean Society for Neurogastroenterology and Motility
Journal of Neurogastroenterology and Motility 2023;29(1):125-125
4.Causes of Hand Tingling in Visual Display Terminal Workers.
Sein OH ; Hyung Kuk KIM ; Jehwan KWAK ; Taikon KIM ; Seong Ho JANG ; Kyu Hoon LEE ; Mi Jung KIM ; Si Bog PARK ; Seung Hoon HAN
Annals of Rehabilitation Medicine 2013;37(2):221-228
OBJECTIVE: To offer the basic data about the causes and distribution of hand tingling, symptoms and physical findings, and pressure pain threshold in desk workers. METHODS: Five physiatrists participated in the screening test composed of history and physical examination. A total of 876 desk workers were evaluated and of them 37 subjects with hand tingling were selected. For further analyzing, detailed history taking and meticulous physical examination were taken. Pressure pain threshold (PPT) at the infraspinatus, upper trapezius, flexor carpi radialis, rhomboideus, and flexor pollicis longus were examined. PPT measurements were repeated three times with two minute intervals by a pressure algometer. Electrodiagnostic study was done to detect potential neurologic abnormalities. RESULTS: The causes of hand tingling in order of frequency were: myofascial pain syndrome, 68%; cervical radiculopathy, 27%; rotator cuff syndrome, 11%; tenosynovitis, 8%; and carpal tunnel syndrome, 5%. The location of trigger points in the myofascial pain syndrome, which were proven to evoke a tingling sensation to the hand in order of frequency were: infraspinatus, 65.4%; upper trapezius, 57.7%; flexor carpi radialis, 38.5%; rhomboideus 15.4%; and flexor pollicis longus 11.5%. The PPT of the affected side was significantly lower than that of the unaffected side in myofascial pain syndrome (p<0.05). CONCLUSION: The most common cause of hand tingling in desk workers was myofascial pain syndrome rather than carpal tunnel syndrome. Common trigger points to evoke hand tingling were in the infraspinatus and upper trapezius.
Carpal Tunnel Syndrome
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Hand
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Mass Screening
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Myofascial Pain Syndromes
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Pain Threshold
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Physical Examination
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Radiculopathy
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Rotator Cuff
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Sensation
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Tenosynovitis
;
Trigger Points
5.Compositional Changes in the Gut Microbiota of Responders and Non-responders to Probiotic Treatment Among Patients With Diarrhea-predominant Irritable Bowel Syndrome: A Post Hoc Analysis of a Randomized Clinical Trial
Seung Yong SHIN ; Sein PARK ; Jung Min MOON ; Kisung KIM ; Jeong Wook KIM ; Jongsik CHUN ; Tae Hee LEE ; Chang Hwan CHOI ; The Microbiome Research Group of the Korean Society for Neurogastroenterology and Motility
Journal of Neurogastroenterology and Motility 2022;28(4):642-654
Background/Aims:
We aim to evaluate the differences in the microbiome of responders and non-responders, as well as predict the response to probiotic therapy, based on fecal microbiome data in patients with diarrhea-predominant irritable bowel syndrome (IBS-D).
Methods:
A multi-strain probiotics that contains Lactobacillus acidophilus (KCTC 11906BP), Lactobacillus plantarum (KCTC11867BP), Lactobacillus rhamnosus (KCTC 11868BP), Bifidobacterium breve (KCTC 11858BP), Bifidobacterium lactis (KCTC 11903BP), Bifidobacterium longum (KCTC 11860BP), and Streptococcus thermophilus (KCTC 11870BP) were used. Patients were categorized into probiotic and placebo groups, and fecal samples were collected from all patients before and at the end of 8 weeks of treatment. The probiotic group was further divided into responders and non-responders. Responders were defined as patients who experienced adequate relief of overall irritable bowel syndrome symptoms after probiotic therapy. Fecal microbiota were investigated using Illumina MiSeq and analyzed using the EzBioCloud 16S database and microbiome pipeline (https://www.EZbiocloud.net).
Results:
There was no significant difference in the alpha and beta diversity between the responder and non-responder groups. The abundances of the phylum Proteobacteria and genus Bacteroides significantly decreased after probiotic treatment. Bifidobacterium bifidum, Pediococcus acidilactici, and Enterococcus faecium showed a significantly higher abundance in the probiotic group after treatment compared to the placebo group. Enterococcus faecalis and Lactococcus lactis were identified as biomarkers of non-response to probiotics. The abundance of Fusicatenibacter saccharivorans significantly increased in the responders after treatment.
Conclusions
Probiotic treatment changes some composition of fecal bacteria in patients with IBS-D. E. faecalis and L. lactis may be prediction biomarkers for non-response to probiotics. Increased abundance of F. sccharivorans is correlated to symptom improvement by probiotics in patients with IBS-D.