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. 2022 Jun 8;13:900842. doi: 10.3389/fphar.2022.900842

TABLE 1.

Basic characteristics of the included studies.

In vivo study
Study (year) Species (gender) Weight (g) Anesthetic Method of administration Result Intergroup difference
Liang et al. (1991) SD, male 150 ± 10 NR 0.5, 2, 4, 12, and 24 h after 1.46 mg/kg, i.g. (1) ↓NADHD (1) NR
Zhang et al. (2012) SD, male 210–220 Chloral hydrate 0.2 ml/h, ivgtt (1) ↑Heart rate
(2) ↑RPP
(1) p < 0.05
(2) NR
Wang (2013) Guinea pig, male 300–350 Pentobarbital sodium 25 μg/kg, IV (1) Arrhythmia (1) NR
Sun et al. (2014) Wistar, male 220–240 Pentobarbital sodium 10 ml/kg for 3, 6, and 10 days, qd, i.g. (1) Arrhythmia
(2) ↑Apoptotic rate
(3) Ultrastructural changes
(4) Proteins expression: ↑RyR, ↑NCX, ↓Bcl-2, ↑P53, and ↑caspase-9/3
(1) NR
(2) NR
(3) NR
(4) p < 0.05
Deng (2010) Guinea pig, both 250–350 NR 3 × 10−8, 1 × 10−7, and 3 × 10−7 M (1) ↓APD50/90, ↑VDD, and ↓APA (1) p < 0.05
In vitro study
Study (year) Cell lines Concentration Result Intergroup difference
Zhang et al. (2020) H9c2 10, 30, 50, 70, 90, and 110 μM (1) ↓Cell viability
(2) Protein expression: ↓α-actinin
(3) Genes expression: ↓actc1, ↓myl1, ↓myl2, and ↓tnnt2
(1) p < 0.05
(2) NR
(3) p < 0.01
Fang et al. (2012) Zebrafish embryos 5, 10, 30, and 60 mg/L (1) Pericardium edema and hemorrhage; ↑blood cells
(2) ↑Heart rate
(1) NR
(2) p < 0.05
Liu (2009) Primary cardiomyocytes of SD neonatal rats 0.25, 0.5, 0.75, 1.0, 2.0, and 3.0 μg/L for 0.5, 1, 2, and 4 h (1) ↓Pulse rhythm
(2) ↑LDH
(3) ↓Cell viability
(1) NR
(2) p < 0.05
(3) p < 0.05
0.1, 0.5, 1, and 2 μM for 0.5 h (4) DNA damage: ↓HDNA%, ↓TDNA%, ↑TL, ↑TM, and ↑OTM (4) p < 0.05
1.0 μM for 1 h (5) Proteins expression: ↓P-Cx43(Ser–368), ↑NP-Cx43(Ser–368), and ↓P-PKCα(Ser–657)
(6) Protein expression: ↓P-PKCα (Ser–657)
(7) Genes expression: ↑NCX, ↑RYR2, ↓SERCA2, and ↓PLB
(5) p < 0.01
(6) p < 0.01
(7) p < 0.01
Zhang (2007) Primary cardiomyocytes of SD neonatal rats 0.25, 0.5, 0.75, 1.0, 1.5, and 2.0 μΜ for 1 h (1) Proteins expression: ↓(P2+P1) Cx43 and ↑NP Cx43
(2) →Morphology
(3) Proteins expression: ↓P-Cx43 (Ser–368) and ↑NP-Cx43 (Ser–368)
(1) p < 0.05
(2) NR
(3) p < 0.01
Wang et al. (2007) Primary cardiomyocytes of SD neonatal rats 100.0, 10.0, 1.0, and 0.1 μg/ml for 24 and 48 h (1) ↓Cell viability
(2) ↓MDA
(3) ↑Beating rate
(4) Cell shrinkage and ↑pseudopodia
(1) p < 0.01
(2) p < 0.01
(3) NR
(4) NR
Meng (2006) Primary cardiomyocytes of SD neonatal rats 3% for 0.5, 1 and 30 min (1) Morphological changes
(2) ↑LDH
(3) ↑MDA
(4) ↑Acid phosphatase activity
(5) ↑Na+, ↓K+, ↑Ca+, and ↓Mg+
(6) ↓Na+-K+ATP
(7) ↓OPTDM
(8) ↓SDH
(9) Cell cycle: ↑(G0/G1) %, ↓S% and ↓G2+M%
(1) NR
(2) p < 0.05
(3) p < 0.05
(4) p < 0.05
(5) p < 0.05
(6) p < 0.01
(7) p < 0.05
(8) p < 0.05
(9) p < 0.01
Li et al. (2018) Primary cardiomyocytes of SD neonatal rats 1, 5 and 10 μM (1) ↓Ca2+ transient amplitude, ↑Ca2+ transient frequency
(2) Enzymatic activities: ↓Ca2+-ATP, ↓Ca2+-Mg2+-ATP and ↓Na+-K+-ATP
(3) ↑Na+, ↑Ca2+ and ↓K+
(4) Genes expression: ↓SERCA2 and ↑RyR2
(5) Proteins expression: ↓SERCA2 and ↑RyR2
(1) p < 0.01
(2) p < 0.05
(3) p < 0.05
(4) p < 0.05
(5) p < 0.05
Wang (2013) Primary cardiomyocytes of guinea pig Undefined multiple concentrations (1) ↓APD30/90 (1) p < 0.01
Gao (2018) H9c2 50, 100, 150, 200, and 250 μM (1) ↓Cell viability (1) p < 0.01
(2) ↓Nuclear volume
(3) ↑Apoptosis rate
(4) ↑ROS
(5) ↓Membrane potential
(6) ↓ATP
(7) Proteins expression: ↓PGC-1α and ↑Bax, ↑caspase-3, ↑cytochrome C, and ↓Bcl-2
(2) NR
(3) p < 0.001
(4) p < 0.05
(5) p < 0.001
(6) p < 0.001
(7) p < 0.01
Cui et al. (2018) Zebrafish embryos 1, 3, and 10 μM for 1 day (1) Arrhythmia
(2) ↓Stroke volume
(1) NR
(2) p < 0.05
AC-16 1 μM (3) ↑Ca2+ oscillation frequency and ↓Ca2+ oscillation amplitude (3) p < 0.05
Fu (2007) Primary cardiomyocytes of SD neonatal rats Undefined multiple concentrations (1) ↓Pulse rhythm (1) NR
0.1, 0.25, 0.5, 1, and 3 μM for 0.5, 1, and 2 h (2) ↓Cell viability
(3) ↑LDH
(2) p < 0.05
(3) p < 0.05
0.5, 1, and 3 μM (4) DNA damage: ↑TL, ↓HDNA% and ↑TDNA% (4) p < 0.05
0.5 and 3 μM (5) Calcium oscillation: ↓amplitude and ↑Ca2+ (5) p < 0.05
0.5, 1, and 3 μM for 1 h (6) Proteins expression: ↑RyR2 and ↑NCX
(7) Genes expression: ↑RyR2 and ↑NCX
(6) p < 0.05
(7) p < 0.05
Wang (2007) Primary cardiomyocytes of SD neonatal rats 3% for 1 min (1) ↑α1-AR
(2) →β1-AR
(3) →β2-AR
(1) p < 0.05
(2) p > 0.05
(3) p > 0.05
3% for undefined multiple time (4) ↑Round and smaller cells and ↑contracted pseudopodia (4) NR
3% for 0.5, 1, and 30 min (5) ↑IP3
(6) ↑cAMP/cGMP
(5) p < 0.05
(6) p < 0.01
Zhang et al. (2018) H9c2 150, 250, 400, 500, and 1,000 μg/ml (1) ↓Cell viability
(2) ↓Cell volume
(1) p < 0.05
(2) NR
(3) ↑LDH
(4) ↑Apoptosis
(3) p < 0.05
(4) p < 0.05
Hu et al. (2018) H9c2 0.05%, 0.1%, 0.2%, and 0.4% for 0.5, 1, 1.5, and 3 h (1) ↓Cell viability (1) p < 0.05
(2) ↑Autophagy
(3) ↑Apoptosis
(4) Proteins expression: ↑LC3B, ↑beclin-1, ↑caspase-3, ↑Bcl-2, and ↑Bax
(2) NR
(3) NR
(4) p < 0.05
Li et al. (2020) Zebrafish embryos 1.87, 3.75, 7.5, 15, and 30 μM for 48 h (1) ↓Survival rate (1) p < 0.05
2 and 8 μM for 12, 24, 36, and 48 h (2) ↓Contraction of ventricles and atria (2) p < 0.05
(3) ↑254 genes and ↓352 genes (3) NR
H9c2 Undefined multiple concentrations for 30 min (4) ↓Survival rate
(5) ↑Apoptosis
(4) p < 0.05
(5) p < 0.01
(6) ↑Ca2+
(7) Proteins expression: ↓TnT, ↓Bcl-2, ↑caspase-3, and ↑Bax
(6) p < 0.01
(7) p < 0.05
Gao et al. (2018) H9c2 0–250 μM for 24 h (1) ↓Cell viability (1) p < 0.01
0, 100, and 200 μM for 24 h (2) ↑Cell nuclei shrinkage and chromatin condensation
(3) ↑Apoptosis
(4) ↓ATP
(2) NR
(3) p < 0.001
(4) p < 0.001
0, 100, and 200 μM for 4 h (5) ↑ROS
(6) ↓Mitochondrial transmembrane potential
(7) Proteins expression: ↓PGC-1α, ↓Bcl-2, ↑Bax, ↑caspase-3, and ↑cytochrome
(5) p < 0.05
(6) p < 0.001
(7) p < 0.01
Sun et al. (2014) Primary ventricular myocytes of Wistar rats 1 μM (1) ↑Beating rhythm
(2) ↑Sarcomere shortening
(3) ↑Ca2+ transient amplitude and ↑Ca2+
(1) NR
(2) p < 0.01
(3) p < 0.01
0.01, 0.04, 0.16, and 0.64 mΜ for 4 h (4) ↓Cell viability
(5) ↑LDH
(6) ↑Apoptosis
(4) p < 0.01
(5) p < 0.05
(6) p < 0.01
Zhou et al. (2013) Primary cardiomyocytes of SD neonatal rats 1 μM (1) ↑Ca2+
(2) ↑APD50/90
(1) p < 0.05
(2) p < 0.01
1 μM for 48 h (3) Proteins expression: ↓SERCA2 and ↑NCX (3) p < 0.05
Liu et al. (2019) Zebrafish embryos 1, 2, and 4 μg/L for undefined multiple time (1) Cardiac function: ↓Heart rate, ↓SV and ↓CO (1) p < 0.05
2.5 μg/L (2) ↑Yolk sac hemorrhage and pericardial edema
(3) ↑Apoptosis in the brain and eye area
(4) Genes expression: ↓Nkx2.5, ↓Tbx5, and ↑caspase-3
(2) NR
(3) NR
(4) p < 0.05
Ye et al. (2021) Zebrafish embryos Undefined multiple concentrations for 2, 10, and 24 h (1) ↑Heart rate
(2) Curvature of the tail spine and enlarged pericardium
(1) p < 0.05
(2) NR
Peng et al. (2020) H9c2, rat primary cardiomyocytes Undefined multiple concentrations (1) ↑503 genes and ↓314 genes
(2) ↓Cell viability
(1) NR
(2) p < 0.05
1 μmol/L (3) ↑ROS (3) p < 0.05
0.5 and 1 μM (4) ↑Apoptosis
(5) Proteins expression: ↑TNF-α and ↑FADD, ↑cytochrome C, ↑caspase-3/8, ↓Bcl-2, ↑RIP1/3, and ↑MLKL
(4) NR
(5) p < 0.05
Wang et al. (2022a) H9c2 3.125–400 μM for 24 h (1) ↓Cell viability (1) p < 0.01
50, 100, and 200 μM for 24 h (2) ↑LDH
(3) Proteins expression: ↑beclin-1, ↑LC3, ↑p-AMPKα/AMPKα, and ↑p-ULK1/ULK1
(4) ↑ROS
(5) ↑8-OHdG
(6) ↓GSH
(2) p < 0.01
(3) p < 0.05
(4) p < 0.01
(5) p < 0.01
(6) p > 0.05
Zhou et al. (2020) Primary ventricular myocytes of Wistar rats, AC-16 cells 0–320 μM for 24 h in AC-16 cells (1) ↓Cell viability
(2) ↑Mitochondrial superoxide productions
(3) Notch1 signal is activated and then suppressed
(1) p < 0.05
(2) p < 0.05
(3) p < 0.05
20 μM for 24 h in AC-16 cells (4) Unchanged morphological characteristics and ultrastructure (4) NR
NRVMs 0–80 μM for 7 days in NRVMs (5) →Cell viability
(6) Unchanged morphological characteristics and ultrastructure
(7) ↑Mitochondrial superoxide productions
(8) Notch1 signal is activated and then suppressed
(5) NR
(6) NR
(7) p < 0.05
(8) p < 0.05
(9) ↑Beating rate (9) p < 0.05
Yang et al. (2021) H9c2 0.25, 0,5, and 1.0 μM for 24 h (1) ↑Apoptosis
(2) ↑Ca2+
(3) Proteins expression: ↓Bcl-2, ↑Bax, ↑caspase-3, ↑p-p38 and ↑TRPV2
(4) Protein expression: ↑TRPV2
(1) p < 0.0001
(2) p < 0.01
(3) p < 0.001
(4) p < 0.05
Wang et al. (2020a) Zebrafish embryos 15 mg/L for 48–72 h (1) ↑Heart rate
(2) ↑Pericardial edema, ↑blood cell, and ↑SV-BA distance
(3) ↑696 genes and ↓925 genes
(1) p < 0.0001
(2) NR
(3) NR
Yu (2015) Primary cardiomyocytes of SD rats 0.3, 1, and 3 μM (1) ↑Ca2+ oscillation amplitude and ↑Ca2+ (1) p < 0.05
Xu (2008) Primary cardiomyocytes of SD neonatal rats 0.5, 1, and 3 μM for 15, 30, and 60 min (1) ↓Cell viability (1) NR
0.5, 1, and 3 μM for 60 min (2) DNA damage: ↑TDNA% and ↑TM (2) p < 0.01
(3) ↑ROS (3) p < 0.01
Liu (2007) Primary ventricular myocytes of Wistar rats 5, 20, 40, 80, 160, 320, 640, and 1,280 μM for 4, 8, and 12 h (1) ↓Cell viability (1) p > 0.05
0.1, 0.3, and 0.6 mM for 24 h (2) ↑LDH (2) NR
12.5, 25, 50, 100, and 200 μM (3) Gene expression: ↓Kv4.3 (3) p < 0.05
Xia et al. (2021) Zebrafish embryos 4, 6, 8, 10, 12, 14, 16, and 18 μM (1) Yolk retention, swim-bladder deficiency, pericardial edema, and curved body shape
(2) ↑Malformation rate, ↓body length and ↑SV-BA distance
(3) ↑Heart rate
(1) NR
(2) p < 0.05
(3) p < 0.01
0.73, 2.42, 7.27, and 8.23 μM (4) ↑ROS
(5) ↓SOD
(6) ↑MDA
(7) ↑Apoptosis
(8) Genes expression: ↑JNK, ↓Erk1/2, ↑Bax, ↑Bad, ↑cytochrome C, ↑caspase-3/9, and ↓Bcl-2
(4) p < 0.01
(5) p < 0.01
(6) p < 0.01
(7) p < 0.01
(8) p < 0.05

↑: demonstrates increasing trend; ↓: demonstrates decreasing trend; →: demonstrates the unchanging trend; APA, amplitude of action potential; APD, action potential duration; APD30, duration at 30% of repolarization; AR, adrenoceptor; cAMP/cGMP, cyclic adenosine monophosphate/cyclic guanosine monophosphate; CO, cardiac output; GSH, glutathione; HDNA%, head DNA%; IP3, inositol triphosphate; LDH, lactate dehydrogenase; MDA, malondialdenhyde; NADHD, reduce nicotinamide adenine dinucleotide dehydrogenase; NCX, Na+/Ca2+ exchanger; NR, not report; NRVMS, neonatal rat ventricular myocytes; OPTDM, average optical density of myocardial glycogen granules; OTM, olive tail moment; PLB, phospholamban; RPP, rate pressure product; ROS, reactive oxygen species; RyR2, ryanodine receptor; SERCA2, SR Ca2+-ATPase; SDH, succinate dehydrogenase; SD, Sprague–Dawley; SV, stroke volume; SV-BA, sinus venous and bulbus arteriosus; TDNA%, tail DNA%; TL, tail length; TM, tail moment; VDD, average velocity of diastolic spontaneous depolarization; 8-OHdG, 8-hydroxydeoxyguanosine.