1.Human placental mesenchymal stem cell-derived exosomes carrying hsa-let-7i-5p mitigate lung injury in a murine model of aspiration pneumonia
Ching-Wei CHUANG ; Hong-Phuc Nguyen VO ; Yen-Hua HUANG ; I-Lin TSAI ; Chao-Yuan CHANG ; Chun-Jen HUANG
Korean Journal of Anesthesiology 2026;79(1):114-129
Background:
Aspiration pneumonia (AP), which can be caused by gastric content inhalation into the lower airways, causes acute lung injury (ALI) through complex mechanisms, including inflammation, oxidative stress, and apoptosis. Here, we evaluated the efficacy of exosomes derived from human placental mesenchymal stem cells (hpMSCs) in mitigating ALI in a murine model of AP. We also investigated the role of hsa-let-7i-5p, the most abundant miRNA in hpMSC-derived exosomes, in this respect.
Methods:
Adult male C57BL/6 mouse AP models were administered hpMSC-derived exosomes (APExo group) or phosphate-buffered saline (AP group) intra-tracheally. After 48 h, the mice were euthanized and evaluated. The effects of hsa-let-7i-5p were assessed by specific inhibition or overexpression.
Results:
Compared with the APExo group, the AP group exhibited significantly greater ALI, as evidenced by histological damage, increased lung injury scores, impaired lung function, increased leukocyte infiltration, and elevated tissue edema (all P < 0.05). The untreated AP group also showed more inflammation, characterized by nuclear factor-κB upregulation, macrophage M1 polarization, and cytokine level elevation (tumor necrosis factor-α, interleukin-1β, and interleukin-6), as well as increased oxidation and activation of the apoptosis pathway (all P < 0.05). Notably, the therapeutic effects of hpMSC-derived exosomes were compromised by specific inhibition of hsa-let-7i-5p. Furthermore, engineered exosomes derived from genetically modified RAW264.7 overexpressing hsa-let-7i-5p demonstrated therapeutic effects against AP similar to those obtained with hpMSC-derived exosomes.
Conclusions
In a murine AP model, intra-tracheal administration of hpMSC-derived exosomes has ALI-mitigating effects, involving inflammation, oxidation, and apoptosis modulation, with hsa-let-7i-5p playing a pivotal mediating role.
2.Use of glecaprevir/pibrentasvir in patients with chronic hepatitis C virus infection and severe renal impairment
Desmond Y. H. YAP ; Kevin S. H. LIU ; Yu-Chun HSU ; Grace L. H. WONG ; Ming-Chang TSAI ; Chien-Hung CHEN ; Ching-Sheng HSU ; Yee Tak HUI ; Michael K. K. LI ; Chen-Hua LIU ; Yee-Man KAN ; Ming-Lung YU ; Man-Fung YUEN
Clinical and Molecular Hepatology 2020;26(4):554-561
Background/Aims:
Data on treatment efficacy and safety of glecaprevir/pibrentasvir (GLE/PIB) for chronic hepatitis C virus (HCV) infection in Asian patients with severe renal impairment are limited. This study aimed to study the treatment and side effects of GLE/PIB in these patients infected with non-1 genotype (GT) HCV.
Methods:
We prospectively recruited patients with Child’s A cirrhosis and eGFR <30 mL/min/1.73 m2 in Hong Kong and Taiwan during 2017–2018 to receive GLE/PIB treatment.
Results:
Twenty-one patients (GT2, n=7; GT3, n=6; and GT6, n=8) received GLE/PIB for 11.2±1.8 weeks. All except one were treatment-naïve. GLE/PIB was initiated in 16 patients while on dialysis (seven on peritoneal dialysis [PD] and nine on hemodialysis) and in five patients before dialysis. One patient died of PD-related peritonitis during treatment and two were lost to follow up. The SVR12 rate in the remaining 18 patients was 100%. All patients achieved undetectable levels at 4-, 12-, 24- and 48-week after treatment. Patients with deranged alanine aminotransferase showed normalization after 4 weeks and the response was sustained for 48 weeks. No significant adverse event was observed.
Conclusions
GLE/PIB treatment was associated with high efficacy and tolerability in HCV-infected patients with severe renal impairment.
3.Attitudes of visitors at adult intensive care unit toward organ donation and organ support.
Nga-Wing TSAI ; Yee-Man LEUNG ; Pauline Yeung NG ; Ting LIONG ; Sui-Fong LEE ; Chun-Wai NGAI ; Wai-Ching SIN ; Jenny KOO ; Wai-Ming CHAN
Chinese Medical Journal 2019;132(3):373-376
Adolescent
;
Adult
;
Cross-Sectional Studies
;
Female
;
Health Knowledge, Attitudes, Practice
;
Humans
;
Intensive Care Units
;
statistics & numerical data
;
Male
;
Middle Aged
;
Organ Transplantation
;
psychology
;
statistics & numerical data
;
Surveys and Questionnaires
;
Tissue and Organ Procurement
;
statistics & numerical data
;
Young Adult
4.Credibility Judgment Predictors for Child Sexual Abuse Reports in Forensic Psychiatric Evaluations
Ling Hsiang WANG ; Yu Yung HUNG ; Philip C CHOW ; Che Sheng CHU ; Hsing Jung LI ; Ti LU ; Ching Hong TSAI
Psychiatry Investigation 2019;16(2):139-144
OBJECTIVE:
We intended to analyze the credibility judgment in written forensic psychiatric reports of child sexual abuse registered in Southern Taiwan.
METHODS:
Ninety-six cases of child sexual abuse between August 2010 and October 2017 encountered in two hospitals were analyzed. The results in these reports were categorized into credible and non-credible. We identified the factors that distinguished between the two groups in bivariate analyses using chi-square test. A binary logistic regression analysis was performed to determine whether the factors that significantly correlated in the bivariate analyses were independent predictors of credible judgments.
RESULTS:
Among 96 cases, 70 (73%) were judged as credible. Consistent testimonies of children (odds ratio=40.82) and multiple abuse events (odds ratio=6.05) were positive variables independently related to the sexual abuse allegations judged as credible.
CONCLUSION
The number of allegations judged as credible in this study was slightly higher than that reported in other studies. Our findings about predictors for credible cases are not in line with those reported previously. Due to the differences in resources of the cases and backgrounds of the evaluators among multiple studies, direct comparisons with previous studies must be treated with caution.
5.Transarterial Chemoembolization Using Gelatin Sponges or Microspheres Plus Lipiodol-Doxorubicin versus Doxorubicin-Loaded Beads for the Treatment of Hepatocellular Carcinoma.
Yi Sheng LIU ; Ming Ching OU ; Yi Shan TSAI ; Xi Zhang LIN ; Chien Kuo WANG ; Hong Ming TSAI ; Ming Tsung CHUANG
Korean Journal of Radiology 2015;16(1):125-132
OBJECTIVE: To retrospectively compare treatment of hepatocellular carcinoma (HCC) with transarterial chemoembolization (TACE) using gelatin sponges or microspheres plus lipiodol-doxorubicin vs. doxorubicin-loaded drug-eluting beads (DEB). MATERIALS AND METHODS: A total of 158 patients with HCC received TACE from November 2010 to November 2011 were enrolled in this study, including 64 (40.5%) received TACE with lipiodol-doxorubicin and gelatin sponges (group A), 41 (25.9%) received TACE with lipiodol-doxorubicin and microspheres (group B), and 53 (33.5%) received TACE with doxorubicin-loaded DEB (group C). Tumor response and adverse events (AEs) were evaluated. RESULTS: No significant difference was found at baseline among the three groups. The doxorubicin dosage in group C was significantly (p < 0.001) higher compared to the dose used in groups A or B (median, 50 mg vs. 31 mg or 25 mg). Significantly (p < 0.001) more patients in group C achieved complete response compared to those in groups A or B (32.1% vs. 6.3% or 2.4%). Significantly (p < 0.001) less patients in group C had progressive disease compared to those in groups A or B (34.0% vs. 57.8% or 68.3%). Minor AEs were more common in groups A and B compared to group C, with rates of 54.7%, 34.1%, and 5.7%, respectively. CONCLUSION: In patients with HCC, TACE with DEB offers better safety and efficacy profiles compared to either TACE with gelatin sponges or TACE with microspheres.
Abdominal Pain/etiology
;
Adult
;
Aged
;
Antibiotics, Antineoplastic/*administration & dosage/adverse effects
;
Carcinoma, Hepatocellular/*drug therapy/mortality
;
Chemoembolization, Therapeutic
;
Disease-Free Survival
;
Doxorubicin/*administration & dosage/adverse effects
;
Drug Carriers/*chemistry
;
Ethiodized Oil/chemistry
;
Female
;
Fever/etiology
;
Follow-Up Studies
;
Gelatin/chemistry
;
Humans
;
Kaplan-Meier Estimate
;
Liver Neoplasms/*drug therapy/mortality
;
Male
;
Microspheres
;
Middle Aged
;
Retrospective Studies
6.Effects of acupuncture on post-cesarean section pain.
Hung-chien WU ; Yu-chi LIU ; Keng-liang OU ; Yung-hsien CHANG ; Ching-liang HSIEH ; Angela Hsin-chieh TSAI ; Hong-te TSAI ; Tsan-hung CHIU ; Chih-jen HUNG ; Chien-chung LEE ; Jaung-geng LIN
Chinese Medical Journal 2009;122(15):1743-1748
BACKGROUNDPost-operation pain is a very subjective phenomenon. The aim of this study was to find out the effects of acupuncture or electro-acupuncture on post-cesarean pain.
METHODSSixty women, who had had spinal anesthesia during cesarean section at the Department of Obstetrics of China Medical University Hospital, were randomly assigned to the control group, the acupuncture group, and the electro-acupuncture group. After the operation, we applied subjects with acupuncture or electro-acupuncture on the bilateral acupuncture point, San Yin Jiao (Sp6), and the patient controlled analgesia (PCA). The first time of requesting morphine, the frequency of PCA demands in 24 hours, and the doses of PCA used were recorded double blindly. In addition, monitoring the subjects' vital signs, the opioid-related side effects, and the pain scores was done.
RESULTSThe results showed that the acupuncture group and the electro-acupuncture group could delay the time of requesting morphine up to 10 - 11 minutes when compared with the control group. The total dose of PCA used within the first 24 hours was 30% - 35% less in the acupuncture group and the electro-acupuncture group when compared with the control group, which was indicated in statistical significance. However, there was no significant difference between the acupuncture group and the electro-acupuncture group. The electro-acupuncture group's and the acupuncture group's pain scores were lower than the control group's within the first 2 hours. Both were statistically significant. However, two hours later, there were no significant differences of the visual analogue scale (VAS) scores between either of the treatment groups and the control group. Finally, the incidence of opioid-related side effects, such as dizziness, was less in the acupuncture group and electro-acupuncture group than in the control group.
CONCLUSIONSThis study shows that the application of acupuncture and electro-acupuncture could definitely delay the time of requesting pain relief medication after cesarean section and decrease the PCA doses used within the first 24 hours.
Acupuncture Therapy ; methods ; Adult ; Analgesics ; therapeutic use ; Cesarean Section ; Female ; Humans ; Male ; Morphine ; therapeutic use ; Pain, Postoperative ; drug therapy ; therapy ; Pregnancy

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