1.Soft Rot of Rhizopus oryzae as a Postharvest Pathogen of Banana Fruit in Korea.
Jin Hyeuk KWON ; Jae San RYU ; Tran Thi Phuong CHI ; Shun Shan SHEN ; Okhee CHOI
Mycobiology 2012;40(3):214-216
Soft rot on banana fruit caused by Rhizopus oryzae was identified for the first time in Korea. Colonies were white to light brown and formed numerous sporangiospores. Optimum temperature for mycelial growth was 30degrees C. Sporangia were globose and 30~200 microm. Sporangiophores were usually straight, 8~20 microm, and rhizoids usually in groups of 3~5. Columella were globose to sub-globose and 90~110 microm. Sporangiospores were sub-globose or oval and 4~10 microm. Based on its mycological characteristics, molecular analysis, and pathogenicity to host plants, this fungus was identified as Rhizopus oryzae Went & Prisen Geerligs. This is the first report of soft rot on banana caused by Rhizopus oryzae in Korea.
Fruit
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Fungi
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Humans
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Korea
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Light
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Musa
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Oryza
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Rhizopus
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Sporangia
2.Clinical profile, risk factors and aetiology of young ischaemic stroke patients in Asia: A prospective, multicentre, observational, hospital-based study in eight cities
Kay Sin Tan ; Jose C Navarro ; Ka Sing Wong ; Yi Ning Huang ; Hou Chang Chiu ; Niphon Poungvarin ; Shan Jin Ryu ; Ester Bitanga ; Nijasri Suwanwela ; Sardar Mohd Alam ; Woo Yoon
Neurology Asia 2014;19(2):117-127
Background and Objective: There is a lack of international collaborative studies on young adults with ischaemic stroke in Asia. The aim of this study was to investigate risk factors, aetiology and outcome at hospital discharge of these patients across 8 participating countries in Asia. Methods: This was a prospective, observational, multicentre, hospital based cohort study. Consecutive young stroke patients with confirmed cerebral infarction between the ages of 18-49 were recruited from December 2011 to May 2012. Data was collected for patient demography, risk factors, investigations, clinical profile and TOAST classification. Outcome measures were death and independence (modified Rankin score≤ 2) at hospital discharge. Results: Two hundred and eighteen patients with the mean age was 40.8±6.7 years were recruited. There was a larger proportion of male patients with a ratio of 1.9:1. Traditional risk factors observed were hypertension (n=103; 47.3%), dyslipidaemia (n=93; 42.4%), smoking (n=85; 38.8%), diabetes (n=53; 24.3%), alcohol use (n=33; 15.0%), a previous history of stroke and transient ischaemic attacks (6.4%), family history (n=12; 5.5%), migraine (n=6;2.8%), pregnancy related (n=5; 2.3%) and numerous cardiac risk factors (0.9-5.5%). The majority suffered arterial infarction; n=216 (99.4%) while n=2 (0.6%) had venous strokes. The predominant stroke subtypes were large artery atherosclerosis (LAA); 29.8% and small vessel occlusion (SVO); 20.2%. LAA and SVO accounted for 37.5% of all stroke subtypes in the ≤36 year age-group. Cardioembolism (15.1%) and stroke of determined aetiology (14.7%) contributed to the other categories of identified stroke subtypes. Mortality on hospital discharge was 3.1% while 65.1% of patients were independent on discharge. Conclusion: This study demonstrated the substantial presence of premature atherosclerosis and conventional risk factors in young ischaemic stroke patients from 8 Asian cities. Venous infarction from cerebral venous thrombosis was rare in this study. Outcome on hospital discharge was poorer compared to Western studies. Detection of vascular risk factors and primary prevention measures should be initiated during late adolescence or early adulthood in urban Asia.
3.Complication of acute stroke: A study in ten Asian countries
Jose C Navarro ; Ester Bitanga ; Nijasri Suwanwela ; Hui Meng Chang ; Shan Jin Ryu ; Yi Ning Huang ; Lawrence Wong ; Deepak Arjundas ; Bhim Sen Singhal ; Sang Bok Lee ; Byung Woo Yoon ; N Venketasubramanian ; Hou Chang Chiu ; Niphon Poungvarin ; Kay Sin Tan ; Sardar Mohd Alam ; Duc Hinh Le
Neurology Asia 2008;13(1):33-39
Background and Objective: There is a paucity of studies looking into the frequency of complications
after stroke among Asians. We sought to determine the frequency and rate of complications among
Asians after acute stroke. Methods: Consecutive patients with acute stroke among 10 participating Asian
countries were included in the study. The frequency and timing of pre-determined complications, and
their relation to area of admission were noted. Results: Of the 1,153 patients included in the study, 423
(41.9%) developed complications within the first 2 weeks of stroke. Recurrent stroke, chest infections
and urinary tract infections were most commonly encountered, and were most frequent within the
first week of stroke onset. A lower rate of complications was noted among patients admitted at an
organized stroke unit.
Conclusion: There is a similar rate of frequency and timing of complications after acute stroke among
Asians as compared with other populations.
4.Adipose Stem Cells with Conditioned Media for Treatment of Acne Vulgaris Scar
Xing SHAN ; Jong Hyeon CHOI ; Ki Joo KIM ; Yoon Jae LEE ; Yeon Hee RYU ; Su Jin LEE ; Suk Ho MOON ; Jong Won RHIE
Tissue Engineering and Regenerative Medicine 2018;15(1):49-61
This study was to investigate the effect of subcutaneous injection of the adipose stem cells (ASCs) with conditioned media (CM) in the treatment of acne vulgaris scar. We used Adult male New Zealand white rabbit ears as an animal model and induced acne formation by Kignman method. Adipose tissue was isolated and harvested from the scapula of rabbits, and ASCs were cultured and expanded until passage 1. There have four groups in our experiment, include phosphate buffered saline (PBS), ASCs with PBS (ASC + PBS), CM, and ASCs with CM (ASC + CM) group. This solution of 0.6 ml injected to subcutaneous in each group. ASC + PBS and ASC + CM groups were containing ASCs of 5.0 × 106 cells/ml. We analyzed the treatment of 4 groups to scar tissue after 2 and 4 weeks by hematoxylin and eosin stain, immunohistochemistry, and RNA expression level of tumor necrosis factor-α (TNF-α), interleukin-1α (IL-1α), and matrix metalloproteinase-2 (MMP-2). Also, the expression of keratin 16 (K16) was detected by western blot analysis. H&E stain showed that infiltration of inflammation cells was significantly reduced at 2 and 4 weeks, as well as re-epithelialization was improved in the ASC + CM group. The ASC + CM gourp was reduced both expression levels of TNF-α, IL-1α, and MMP-2 and K16 protein level. In conclusion, the ASCs with CM has a significant curative effect on acne vulgaris scar, more to the point, the CM has a key role on treatment. It could be applied to a therapeutic approach to regenerate to treat acne vulgaris scar.
Acne Vulgaris
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Adipose Tissue
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Adult
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Blotting, Western
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Cicatrix
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Culture Media, Conditioned
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Ear
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Eosine Yellowish-(YS)
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Hematoxylin
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Humans
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Immunohistochemistry
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Inflammation
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Injections, Subcutaneous
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Keratin-16
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Male
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Matrix Metalloproteinase 2
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Methods
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Models, Animal
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Necrosis
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New Zealand
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Rabbits
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Re-Epithelialization
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RNA
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Scapula
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Stem Cells