1.Shank3 Overexpression Leads to Cardiac Dysfunction in Mice by Disrupting Calcium Homeostasis in Cardiomyocytes
Tae Hee KO ; Yoonhee KIM ; Chunmei JIN ; Byeongil YU ; Minju LEE ; Phuong Kim LUONG ; Tran Nguyet TRINH ; Yeji YANG ; Hyojin KANG ; Yinhua ZHANG ; Ruiying MA ; Kwangmin YOO ; Jungmin CHOI ; Jin Young KIM ; Sun-Hee WOO ; Kihoon HAN ; Jong-Il CHOI
Korean Circulation Journal 2025;55(2):100-117
Background and Objectives:
SH3 and multiple ankyrin repeat domains 3 (Shank3) proteins play crucial roles as neuronal postsynaptic scaffolds. Alongside neuropsychiatric symptoms, individuals with SHANK3 mutations often exhibit symptoms related to dysfunctions in other organs, including the heart. However, detailed insights into the cardiac functions of Shank3 remain limited. This study aimed to characterize the cardiac phenotypes of Shank3-overexpressing transgenic mice and explore the underlying mechanisms.
Methods:
Cardiac histological analysis, electrocardiogram and echocardiogram recordings were conducted on Shank3-overexpressing transgenic mice. Electrophysiological properties, including action potentials and L-type Ca2+ channel (LTCC) currents, were measured in isolated cardiomyocytes. Ca2+ homeostasis was assessed by analyzing cytosolic Ca2+transients and sarcoplasmic reticulum Ca2+ contents. Depolarization-induced cell shortening was examined in cardiomyocytes. Immunoprecipitation followed by mass spectrometrybased identification was employed to identify proteins in the cardiac Shank3 interactome.Western blot and immunocytochemical analyses were conducted to identify changes in protein expression in Shank3-overexpressing transgenic cardiomyocytes.
Results:
The hearts of Shank3-overexpressing transgenic mice displayed reduced weight and increased fibrosis. In vivo, sudden cardiac death, arrhythmia, and contractility impairments were identified. Shank3-overexpressing transgenic cardiomyocytes showed prolonged action potential duration and increased LTCC current density. Cytosolic Ca2+ transients were increased with prolonged decay time, while sarcoplasmic reticulum Ca2+ contents remained normal. Cell shortening was augmented in Shank3-overexpressing transgenic cardiomyocytes. The cardiac Shank3 interactome comprised 78 proteins with various functions. Troponin I levels were down-regulated in Shank3-overexpressing transgenic cardiomyocytes.
Conclusions
This study revealed cardiac dysfunction in Shank3-overexpressing transgenic mice, potentially attributed to changes in Ca2+ homeostasis and contraction, with a notable reduction in troponin I.
2.Shank3 Overexpression Leads to Cardiac Dysfunction in Mice by Disrupting Calcium Homeostasis in Cardiomyocytes
Tae Hee KO ; Yoonhee KIM ; Chunmei JIN ; Byeongil YU ; Minju LEE ; Phuong Kim LUONG ; Tran Nguyet TRINH ; Yeji YANG ; Hyojin KANG ; Yinhua ZHANG ; Ruiying MA ; Kwangmin YOO ; Jungmin CHOI ; Jin Young KIM ; Sun-Hee WOO ; Kihoon HAN ; Jong-Il CHOI
Korean Circulation Journal 2025;55(2):100-117
Background and Objectives:
SH3 and multiple ankyrin repeat domains 3 (Shank3) proteins play crucial roles as neuronal postsynaptic scaffolds. Alongside neuropsychiatric symptoms, individuals with SHANK3 mutations often exhibit symptoms related to dysfunctions in other organs, including the heart. However, detailed insights into the cardiac functions of Shank3 remain limited. This study aimed to characterize the cardiac phenotypes of Shank3-overexpressing transgenic mice and explore the underlying mechanisms.
Methods:
Cardiac histological analysis, electrocardiogram and echocardiogram recordings were conducted on Shank3-overexpressing transgenic mice. Electrophysiological properties, including action potentials and L-type Ca2+ channel (LTCC) currents, were measured in isolated cardiomyocytes. Ca2+ homeostasis was assessed by analyzing cytosolic Ca2+transients and sarcoplasmic reticulum Ca2+ contents. Depolarization-induced cell shortening was examined in cardiomyocytes. Immunoprecipitation followed by mass spectrometrybased identification was employed to identify proteins in the cardiac Shank3 interactome.Western blot and immunocytochemical analyses were conducted to identify changes in protein expression in Shank3-overexpressing transgenic cardiomyocytes.
Results:
The hearts of Shank3-overexpressing transgenic mice displayed reduced weight and increased fibrosis. In vivo, sudden cardiac death, arrhythmia, and contractility impairments were identified. Shank3-overexpressing transgenic cardiomyocytes showed prolonged action potential duration and increased LTCC current density. Cytosolic Ca2+ transients were increased with prolonged decay time, while sarcoplasmic reticulum Ca2+ contents remained normal. Cell shortening was augmented in Shank3-overexpressing transgenic cardiomyocytes. The cardiac Shank3 interactome comprised 78 proteins with various functions. Troponin I levels were down-regulated in Shank3-overexpressing transgenic cardiomyocytes.
Conclusions
This study revealed cardiac dysfunction in Shank3-overexpressing transgenic mice, potentially attributed to changes in Ca2+ homeostasis and contraction, with a notable reduction in troponin I.
3.Shank3 Overexpression Leads to Cardiac Dysfunction in Mice by Disrupting Calcium Homeostasis in Cardiomyocytes
Tae Hee KO ; Yoonhee KIM ; Chunmei JIN ; Byeongil YU ; Minju LEE ; Phuong Kim LUONG ; Tran Nguyet TRINH ; Yeji YANG ; Hyojin KANG ; Yinhua ZHANG ; Ruiying MA ; Kwangmin YOO ; Jungmin CHOI ; Jin Young KIM ; Sun-Hee WOO ; Kihoon HAN ; Jong-Il CHOI
Korean Circulation Journal 2025;55(2):100-117
Background and Objectives:
SH3 and multiple ankyrin repeat domains 3 (Shank3) proteins play crucial roles as neuronal postsynaptic scaffolds. Alongside neuropsychiatric symptoms, individuals with SHANK3 mutations often exhibit symptoms related to dysfunctions in other organs, including the heart. However, detailed insights into the cardiac functions of Shank3 remain limited. This study aimed to characterize the cardiac phenotypes of Shank3-overexpressing transgenic mice and explore the underlying mechanisms.
Methods:
Cardiac histological analysis, electrocardiogram and echocardiogram recordings were conducted on Shank3-overexpressing transgenic mice. Electrophysiological properties, including action potentials and L-type Ca2+ channel (LTCC) currents, were measured in isolated cardiomyocytes. Ca2+ homeostasis was assessed by analyzing cytosolic Ca2+transients and sarcoplasmic reticulum Ca2+ contents. Depolarization-induced cell shortening was examined in cardiomyocytes. Immunoprecipitation followed by mass spectrometrybased identification was employed to identify proteins in the cardiac Shank3 interactome.Western blot and immunocytochemical analyses were conducted to identify changes in protein expression in Shank3-overexpressing transgenic cardiomyocytes.
Results:
The hearts of Shank3-overexpressing transgenic mice displayed reduced weight and increased fibrosis. In vivo, sudden cardiac death, arrhythmia, and contractility impairments were identified. Shank3-overexpressing transgenic cardiomyocytes showed prolonged action potential duration and increased LTCC current density. Cytosolic Ca2+ transients were increased with prolonged decay time, while sarcoplasmic reticulum Ca2+ contents remained normal. Cell shortening was augmented in Shank3-overexpressing transgenic cardiomyocytes. The cardiac Shank3 interactome comprised 78 proteins with various functions. Troponin I levels were down-regulated in Shank3-overexpressing transgenic cardiomyocytes.
Conclusions
This study revealed cardiac dysfunction in Shank3-overexpressing transgenic mice, potentially attributed to changes in Ca2+ homeostasis and contraction, with a notable reduction in troponin I.
4.Shank3 Overexpression Leads to Cardiac Dysfunction in Mice by Disrupting Calcium Homeostasis in Cardiomyocytes
Tae Hee KO ; Yoonhee KIM ; Chunmei JIN ; Byeongil YU ; Minju LEE ; Phuong Kim LUONG ; Tran Nguyet TRINH ; Yeji YANG ; Hyojin KANG ; Yinhua ZHANG ; Ruiying MA ; Kwangmin YOO ; Jungmin CHOI ; Jin Young KIM ; Sun-Hee WOO ; Kihoon HAN ; Jong-Il CHOI
Korean Circulation Journal 2025;55(2):100-117
Background and Objectives:
SH3 and multiple ankyrin repeat domains 3 (Shank3) proteins play crucial roles as neuronal postsynaptic scaffolds. Alongside neuropsychiatric symptoms, individuals with SHANK3 mutations often exhibit symptoms related to dysfunctions in other organs, including the heart. However, detailed insights into the cardiac functions of Shank3 remain limited. This study aimed to characterize the cardiac phenotypes of Shank3-overexpressing transgenic mice and explore the underlying mechanisms.
Methods:
Cardiac histological analysis, electrocardiogram and echocardiogram recordings were conducted on Shank3-overexpressing transgenic mice. Electrophysiological properties, including action potentials and L-type Ca2+ channel (LTCC) currents, were measured in isolated cardiomyocytes. Ca2+ homeostasis was assessed by analyzing cytosolic Ca2+transients and sarcoplasmic reticulum Ca2+ contents. Depolarization-induced cell shortening was examined in cardiomyocytes. Immunoprecipitation followed by mass spectrometrybased identification was employed to identify proteins in the cardiac Shank3 interactome.Western blot and immunocytochemical analyses were conducted to identify changes in protein expression in Shank3-overexpressing transgenic cardiomyocytes.
Results:
The hearts of Shank3-overexpressing transgenic mice displayed reduced weight and increased fibrosis. In vivo, sudden cardiac death, arrhythmia, and contractility impairments were identified. Shank3-overexpressing transgenic cardiomyocytes showed prolonged action potential duration and increased LTCC current density. Cytosolic Ca2+ transients were increased with prolonged decay time, while sarcoplasmic reticulum Ca2+ contents remained normal. Cell shortening was augmented in Shank3-overexpressing transgenic cardiomyocytes. The cardiac Shank3 interactome comprised 78 proteins with various functions. Troponin I levels were down-regulated in Shank3-overexpressing transgenic cardiomyocytes.
Conclusions
This study revealed cardiac dysfunction in Shank3-overexpressing transgenic mice, potentially attributed to changes in Ca2+ homeostasis and contraction, with a notable reduction in troponin I.
5.Sesquiterpenes from Curcuma zedoaria (Christm.) Rosc. Rhizomes and Their Alpha-Glucosidase Inhibitory Effects
Ngan Thi TRAN ; Phuong Nguyen Thi THU ; Mai-Ngan Thi LE ; Quynh-Mai Thi NGO
Natural Product Sciences 2024;30(4):300-303
Curcuma zedoaria (Christm.) Rosc. is a popular traditional herb to treat digestive disorders in Asian tropical countries. Previous studies indicated the presence of sesquiterpenoids, diterpenoids, and curcuminoids with various bioactivities. To enrich the phytocomposition data of this plant, this investigation was conducted.The dried rhizomes of C. zedoaria were collected in Hai Phong City (Vietnam), extracted with methanol and fractionated with n-hexane, CH2Cl2 , and EtOAc. Compounds were isolated from n-hexane soluble fraction by open column chromatography combined with thin layer chromatography from fraction n-hexane. Their chemical structures were elucidated by 1D, and 2D NMR spectra and comparison with reported data. As a result, a phytochemical investigation was conducted to isolate six sesquiterpenes from C. zedoaria. Their chemical structures were elucidated to be curcumenol (1), procurcumenol (2), neoprocurcumenol (3), 13-hydroxygermacrone (4), zederone (5), and curcumalactone (6). Among isolated compounds, compounds 1, 2, 4, and 5 were reported from C. zedoaria. Meanwhile, neoprocurcumenol (3) and curcumalactone (6) are isolated from this species for the first time. Compound 5 exhibited a mild inhibitory effect on α-glucosidase with an IC50 of 99.45 ± 0.50 μg/mL.
6.Field and laboratory investigation of highly pathogenic avian influenza H5N6 and H5N8 in Quang Ninh province, Vietnam, 2020 to 2021
Trong Duc TRAN ; Suwicha KASEMSUWAN ; Manakorn SUKMAK ; Waraphon PHIMPRAPHAI ; Tippawon PRARAKAMAWONGSA ; Long Thanh PHAM ; Tuyet Bach HOANG ; Phuong Thi NGUYEN ; Thang Minh NGUYEN ; Minh Van TRUONG ; Tuan Pham DAO ; Pawin PADUNGTOD
Journal of Veterinary Science 2024;25(2):e20-
Background:
Avian influenza (AI) is a contagious disease that causes illness and death in poultry and humans. High pathogenicity AI (HPAI) H5N6 outbreaks commonly occur in Quang Ninh province bordering China. In June 2021, the first HPAI H5N8 outbreak occurred at a Quang Ninh chicken farm.
Objectives:
This study examined the risk factors associated with HPAI H5N6 and H5N8 outbreaks in Quang Ninh.
Methods:
A retrospective case-control study was conducted in Quang Ninh from Nov 2021 to Jan 2022. The cases were households with susceptible poultry with two or more clinical signs and tested positive by real-time reverse transcription polymerase chain reaction. The controls were households in the same village as the cases but did not show clinical symptoms of the disease. Logistic regression models were constructed to assess the risk factors associated with HPAI outbreaks at the household level.
Results:
There were 38 cases with H5N6 clade 2.3.4.4h viruses (n = 35) and H5N8 clade 2.3.4.4b viruses (n = 3). Compared to the 112 controls, raising poultry in uncovered or partially covered ponds (odds ratio [OR], 7.52; 95% confidence interval [CI], 1.44–39.27), poultry traders visiting the farm (OR, 8.66; 95% CI, 2.7–27.69), farms with 50–2,000 birds (OR, 3.00; 95% CI, 1.06–8-51), and farms with ≥ 2,000 birds (OR, 11.35; 95% CI, 3.07–41.94) were significantly associated with HPAI outbreaks.
Conclusions
Combining biosecurity measures, such as restricting visitor entry and vaccination in farms with more than 50 birds, can enhance the control and prevention of HPAI in Quang Ninh and its spread across borders.
7.Sesquiterpenes from Curcuma zedoaria (Christm.) Rosc. Rhizomes and Their Alpha-Glucosidase Inhibitory Effects
Ngan Thi TRAN ; Phuong Nguyen Thi THU ; Mai-Ngan Thi LE ; Quynh-Mai Thi NGO
Natural Product Sciences 2024;30(4):300-303
Curcuma zedoaria (Christm.) Rosc. is a popular traditional herb to treat digestive disorders in Asian tropical countries. Previous studies indicated the presence of sesquiterpenoids, diterpenoids, and curcuminoids with various bioactivities. To enrich the phytocomposition data of this plant, this investigation was conducted.The dried rhizomes of C. zedoaria were collected in Hai Phong City (Vietnam), extracted with methanol and fractionated with n-hexane, CH2Cl2 , and EtOAc. Compounds were isolated from n-hexane soluble fraction by open column chromatography combined with thin layer chromatography from fraction n-hexane. Their chemical structures were elucidated by 1D, and 2D NMR spectra and comparison with reported data. As a result, a phytochemical investigation was conducted to isolate six sesquiterpenes from C. zedoaria. Their chemical structures were elucidated to be curcumenol (1), procurcumenol (2), neoprocurcumenol (3), 13-hydroxygermacrone (4), zederone (5), and curcumalactone (6). Among isolated compounds, compounds 1, 2, 4, and 5 were reported from C. zedoaria. Meanwhile, neoprocurcumenol (3) and curcumalactone (6) are isolated from this species for the first time. Compound 5 exhibited a mild inhibitory effect on α-glucosidase with an IC50 of 99.45 ± 0.50 μg/mL.
8.Sesquiterpenes from Curcuma zedoaria (Christm.) Rosc. Rhizomes and Their Alpha-Glucosidase Inhibitory Effects
Ngan Thi TRAN ; Phuong Nguyen Thi THU ; Mai-Ngan Thi LE ; Quynh-Mai Thi NGO
Natural Product Sciences 2024;30(4):300-303
Curcuma zedoaria (Christm.) Rosc. is a popular traditional herb to treat digestive disorders in Asian tropical countries. Previous studies indicated the presence of sesquiterpenoids, diterpenoids, and curcuminoids with various bioactivities. To enrich the phytocomposition data of this plant, this investigation was conducted.The dried rhizomes of C. zedoaria were collected in Hai Phong City (Vietnam), extracted with methanol and fractionated with n-hexane, CH2Cl2 , and EtOAc. Compounds were isolated from n-hexane soluble fraction by open column chromatography combined with thin layer chromatography from fraction n-hexane. Their chemical structures were elucidated by 1D, and 2D NMR spectra and comparison with reported data. As a result, a phytochemical investigation was conducted to isolate six sesquiterpenes from C. zedoaria. Their chemical structures were elucidated to be curcumenol (1), procurcumenol (2), neoprocurcumenol (3), 13-hydroxygermacrone (4), zederone (5), and curcumalactone (6). Among isolated compounds, compounds 1, 2, 4, and 5 were reported from C. zedoaria. Meanwhile, neoprocurcumenol (3) and curcumalactone (6) are isolated from this species for the first time. Compound 5 exhibited a mild inhibitory effect on α-glucosidase with an IC50 of 99.45 ± 0.50 μg/mL.
9.Sesquiterpenes from Curcuma zedoaria (Christm.) Rosc. Rhizomes and Their Alpha-Glucosidase Inhibitory Effects
Ngan Thi TRAN ; Phuong Nguyen Thi THU ; Mai-Ngan Thi LE ; Quynh-Mai Thi NGO
Natural Product Sciences 2024;30(4):300-303
Curcuma zedoaria (Christm.) Rosc. is a popular traditional herb to treat digestive disorders in Asian tropical countries. Previous studies indicated the presence of sesquiterpenoids, diterpenoids, and curcuminoids with various bioactivities. To enrich the phytocomposition data of this plant, this investigation was conducted.The dried rhizomes of C. zedoaria were collected in Hai Phong City (Vietnam), extracted with methanol and fractionated with n-hexane, CH2Cl2 , and EtOAc. Compounds were isolated from n-hexane soluble fraction by open column chromatography combined with thin layer chromatography from fraction n-hexane. Their chemical structures were elucidated by 1D, and 2D NMR spectra and comparison with reported data. As a result, a phytochemical investigation was conducted to isolate six sesquiterpenes from C. zedoaria. Their chemical structures were elucidated to be curcumenol (1), procurcumenol (2), neoprocurcumenol (3), 13-hydroxygermacrone (4), zederone (5), and curcumalactone (6). Among isolated compounds, compounds 1, 2, 4, and 5 were reported from C. zedoaria. Meanwhile, neoprocurcumenol (3) and curcumalactone (6) are isolated from this species for the first time. Compound 5 exhibited a mild inhibitory effect on α-glucosidase with an IC50 of 99.45 ± 0.50 μg/mL.
10.Effectiveness and safety of electroacupuncture analgesia in controlling intraoperative pain and hemodynamics during total thyroidectomy: A randomized controlled trial
Dong Phuong Tran ; Quoc Dung Nguyen ; Ninh Khac Nguyen ; Van Hong Pham
Journal of Traditional Chinese Medical Sciences 2024;11(2):165-171
Objective:
To evaluate the effectiveness and safety of electroacupuncture in conjunction with additional medications in providing analgesia and stabilizing hemodynamic parameters during total thyroidectomy.
Methods:
This randomized controlled trial included 100 patients who underwent a total thyroidectomy between October 2022 and October 2023 at the Vietnam National Hospital of Acupuncture. The patients were randomized into two groups. The electroacupuncture analgesia (EA) group received EA stimulation at five acupuncture points: Hegu (LI 4), Neiguan (PC 6), Shuitu (ST 10), Quepen (ST 12), and Yifeng (SJ 17), while the control group received a bilateral superficial cervical plexus block. Primary outcomes included the level of analgesia and perioperative vital signs in both groups. Additionally, pain thresholds and serum β-endorphin levels were measured before and after electroacupuncture in the EA group.
Results:
Complete analgesia (Level A) was attained in 86% and 76% of the patients in the EA and control groups, respectively, with no significant difference between the two groups (P = 1.00). In the EA group, the mean pain threshold after receiving EA doubled (648.7 (77.4) g/s vs. 305.3 (45.3) g/s, P < .001), and the mean serum β-endorphin level increased by approximately 13.5 pg/mL (P < .001). All patients remained hemodynamically stable throughout the surgery.
Conclusion
EA, in conjunction with additional medications that stimulate five acupuncture points, LI 4, PC 6, ST 10, ST 12, and SJ 17, was well tolerated and effectively maintained a suitable level of analgesia and hemodynamic stability during total thyroidectomy.


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