Background: To evaluate whether serotonin (5-HT), 5-HT2A receptor (5-HT2AR), and 5-HT transporter (serotonin transporter [SERT]) are associated with different disease states of depression, myocardial infarction...Background: To evaluate whether serotonin (5-HT), 5-HT2A receptor (5-HT2AR), and 5-HT transporter (serotonin transporter [SERT]) are associated with different disease states of depression, myocardial infarction (MI) and MI co-exist with depression in Sprague-Dawley rats. Methods: After established the animal model of four groups include control, depression, MI and MI with depression, we measured 5-HT, 5-HT2AR and SERT from serum and platelet lysate.Results: The serum concentration of 5-HT in depression rats decreased significantly compared with the control group (303.25 ± 9.99 vs. 352.98 ±13.73; P =0.000), while that in MI group increased (381.78 ±14.17 vs. 352.98 ±13.73; P = 0.000). However, the depression + MI group had no change compared with control group (360.62 ±11.40 vs. 352.98 ±13.73; P = 0.036). The changes of the platelet concentration of 5-HT in the depression, MI, and depression + MI group were different from that of serum. The levels of 5-HT in above three groups were lower than that in the control group (380.40 ± 17.90, 387.75 ±22.28,246.40 ±18.99 vs. 500.29 ±20.91 ; P = 0.000). The platelet lysate concentration of 5-HT2AR increased in depression group, MI group, and depression + MI group compared with the control group (370.75 ±14.75,393.47 ±15.73,446.66 ±18.86 vs. 273.66 ±16.90; P= 0.000). The serum and platelet concentration of SERT in the depression group, MI group and depression + MI group were all increased compared with the control group (527.51 ±28.32, 602.02 ±23.32, 734.76 ±29.59 vs. 490.56 ±16.90; P 0,047, P = 0.000, P = 0.000 in each and 906.38 ±51.84, 897.33 ±60.34, 1030.17 ±58.73 vs. 708.62 ±51.15; P = 0.000 in each). Conclusions: The concentration of 5-HT2AR in platelet lysate and SERT in serum and platelet may be involved in the pathway of MI with depression. Further studies should examine whether elevated 5-HT2AR and SERT may contribute to the biomarker in MI patients with depression.展开更多
Background:Psychocardiological researches have suggested a central role of 5-hydroxytryptamine (5-HT) on psychocardiological mechanism.This study aimed to further explore the central role of 5-HT and pretreatment e...Background:Psychocardiological researches have suggested a central role of 5-hydroxytryptamine (5-HT) on psychocardiological mechanism.This study aimed to further explore the central role of 5-HT and pretreatment effects of XinLingWan on rats with myocardial infarction (M I) and/or depression.Methods:Ninety Sprague-Dawley rats were randomly divided into three groups:MI group,depression group,and MI + depression group (n 30 in each group).Each group was then divided into three subgroups (n =10 in each subgroup):a negative control subgroup (NCS),a Western medicine subgroup (WMS),and a traditional Chinese medicine subgroup (TCMS),which were received pretreatment once a day for 4 weeks by saline,20 mg/kg sertraline mixed with 2 ml saline,and 40 mg/kg XingLingWan mixed with 2 ml saline,respectively.Different rat models were established after different pretreatments.Rats were then sacrificed for detection of serum 5-HT,platelet 5-HT,5-HT2.A receptors (5-HT2AR),and serotonin transporter (SERT).Data were analyzed by one-way analysis of variance (ANOVA) and least-significant difference (LSD) testing.Results:M I group:compared with NCS,there was a significant increase in WMS and TCMS of serum 5-HT (176.15 ± 11.32 pg/ml vs.334.50 ± 29.09 pg/ml and 474.04 ± 10.86 pg/ml,respectively,both P =0.000),platelet 5-HT (129.74 ± 27.17 pg/ml vs.322.24 ± 11.60 pg/ml and 340.4 5 ± 17.99 pg/ml,respectively,both P =0.000);depression group:compared with NCS,there was a significant increase in WMS and TCMS of serum 5-HT (194.69 ± 5.09 pg/ml vs.326.21 ± 39.98 pg/ml and 456.33 ± 23.12 pg/ml,respectively,both P =0.000),platelet 5-HT (175.15 ± 4.07 pg/ml vs.204.56 ± 18.59 pg/ml and 252.03 ± 22.26 pg/ml,respectively,P =0.004 and P 0.000,respectively);MI + depression group:compared with NCS,there was a significant increase in both WMS and TCMS of serum 5-HT (182.50 ± 10.23 pg/ml vs.372.55 ± 52.23 pg/ml and 441.76 ± 23.38 pg/ml,respectively,both P =0.000) and platelet 5-HT (180.83 ± 11.08 pg/ml vs.221.12 ± 22.23 pg/ml and 265.37 ± 29.49 pg/ml,respectively,P =0.011 and P =0.000,respectively).Conclusions:By elevating the amount of 5-HT and modulating 5-HT2AR and SERT levels in serum and platelets,XinLingWan and sertraline were found to exert pretreatment effect on rat models of MI and/or depression.展开更多
Background: Our previous studies have demonstrated that the levels of 5-hydroxytryptamine (5-HT) and 5-HT 2A receptor (5-HT2AR) in serum and platelet were associated with depression and myocardial infarction (MI...Background: Our previous studies have demonstrated that the levels of 5-hydroxytryptamine (5-HT) and 5-HT 2A receptor (5-HT2AR) in serum and platelet were associated with depression and myocardial infarction (MI), and pretreatment with ginseng fruit saponins (GFS) before MI and depression had an effect on the 5-HT system. In this study, the effects of GFS on the 5-HT system in the Sprague-Dawley (SD) rats with MI, depression, and MI + depression were evaluated. Methods: A total of eighty SD rats were allocated to four groups: MI, depression, MI + depression, and control groups (n = 20 in each group). Each group included two subgroups (n = 10 in each subgroup): Saline treatment subgroup and GFS treatment subgroup. The levels of 5-HT, 5-HT2AR, and serotonin transporter (SERT) were quantified in serum, platelet lysate, and brain tissue through the enzyme-linked immunosorbent assay method, respectively. Results: Compared with those in the saline treatment subgroups, the levels of 5-HT in serum and platelet lysate statistically significantly increased in the GFS treatment subgroups of MI, depression, and MI + depression groups (serum: all P = 0.000; platelet lysate: P = 0.002, 0.000, 0.000, respectively). However, the 5-HT levels in brain homogenate significantly decreased in the GFS treatment subgroups compared with those in the saline treatment subgroups in MI and depression groups (P = 0.025 and 0.044 respectively), and no significant difference was observed between saline and GFS treatment subgroups in MI + depression group (P = 0.663). Compared with that in GFS treatment subgroup of control group, the 5-HT2AR levels in the platelet lysate significantly decreased in GFS treatment subgroups of MI, depression, and MI + depression groups (all P = 0.000). Compared to those in the saline treatment subgroups, the serum SERT levels significantly decreased in the GFS treatment subgroups in MI, depression, and MI + depression groups (P = 0.009, 0.038, and P = 0.001, respectively), while the SERT levels of platelet lysate significantly decreased in GFS treatment subgroup of MI group (P = 0.000), significantly increased in GFS treatment subgroup of depression group (P = 0.019), and slightly changed in GFS treatment subgroup of MI + depression group (P = 0.219). No significant changes for SERT levels in brain homogenate could be found between the saline and GFS treatment subgroups in MI, depression, and MI + depression groups (P = 0.421, 0.076 and P = 0.642). Conclusions: This study indicated that GFS might inhibit the reuptake of 5-HT from serum to platelet according to decreased 5-HT2AR in platelet and SERT in serum and platelet. The change of 5-HT in serum after GFS treatment was inconsistent with that in the brain. It seemed that GFS could not pass through the blood-brain barrier to affect the central serotonergic system.展开更多
文摘Background: To evaluate whether serotonin (5-HT), 5-HT2A receptor (5-HT2AR), and 5-HT transporter (serotonin transporter [SERT]) are associated with different disease states of depression, myocardial infarction (MI) and MI co-exist with depression in Sprague-Dawley rats. Methods: After established the animal model of four groups include control, depression, MI and MI with depression, we measured 5-HT, 5-HT2AR and SERT from serum and platelet lysate.Results: The serum concentration of 5-HT in depression rats decreased significantly compared with the control group (303.25 ± 9.99 vs. 352.98 ±13.73; P =0.000), while that in MI group increased (381.78 ±14.17 vs. 352.98 ±13.73; P = 0.000). However, the depression + MI group had no change compared with control group (360.62 ±11.40 vs. 352.98 ±13.73; P = 0.036). The changes of the platelet concentration of 5-HT in the depression, MI, and depression + MI group were different from that of serum. The levels of 5-HT in above three groups were lower than that in the control group (380.40 ± 17.90, 387.75 ±22.28,246.40 ±18.99 vs. 500.29 ±20.91 ; P = 0.000). The platelet lysate concentration of 5-HT2AR increased in depression group, MI group, and depression + MI group compared with the control group (370.75 ±14.75,393.47 ±15.73,446.66 ±18.86 vs. 273.66 ±16.90; P= 0.000). The serum and platelet concentration of SERT in the depression group, MI group and depression + MI group were all increased compared with the control group (527.51 ±28.32, 602.02 ±23.32, 734.76 ±29.59 vs. 490.56 ±16.90; P 0,047, P = 0.000, P = 0.000 in each and 906.38 ±51.84, 897.33 ±60.34, 1030.17 ±58.73 vs. 708.62 ±51.15; P = 0.000 in each). Conclusions: The concentration of 5-HT2AR in platelet lysate and SERT in serum and platelet may be involved in the pathway of MI with depression. Further studies should examine whether elevated 5-HT2AR and SERT may contribute to the biomarker in MI patients with depression.
文摘Background:Psychocardiological researches have suggested a central role of 5-hydroxytryptamine (5-HT) on psychocardiological mechanism.This study aimed to further explore the central role of 5-HT and pretreatment effects of XinLingWan on rats with myocardial infarction (M I) and/or depression.Methods:Ninety Sprague-Dawley rats were randomly divided into three groups:MI group,depression group,and MI + depression group (n 30 in each group).Each group was then divided into three subgroups (n =10 in each subgroup):a negative control subgroup (NCS),a Western medicine subgroup (WMS),and a traditional Chinese medicine subgroup (TCMS),which were received pretreatment once a day for 4 weeks by saline,20 mg/kg sertraline mixed with 2 ml saline,and 40 mg/kg XingLingWan mixed with 2 ml saline,respectively.Different rat models were established after different pretreatments.Rats were then sacrificed for detection of serum 5-HT,platelet 5-HT,5-HT2.A receptors (5-HT2AR),and serotonin transporter (SERT).Data were analyzed by one-way analysis of variance (ANOVA) and least-significant difference (LSD) testing.Results:M I group:compared with NCS,there was a significant increase in WMS and TCMS of serum 5-HT (176.15 ± 11.32 pg/ml vs.334.50 ± 29.09 pg/ml and 474.04 ± 10.86 pg/ml,respectively,both P =0.000),platelet 5-HT (129.74 ± 27.17 pg/ml vs.322.24 ± 11.60 pg/ml and 340.4 5 ± 17.99 pg/ml,respectively,both P =0.000);depression group:compared with NCS,there was a significant increase in WMS and TCMS of serum 5-HT (194.69 ± 5.09 pg/ml vs.326.21 ± 39.98 pg/ml and 456.33 ± 23.12 pg/ml,respectively,both P =0.000),platelet 5-HT (175.15 ± 4.07 pg/ml vs.204.56 ± 18.59 pg/ml and 252.03 ± 22.26 pg/ml,respectively,P =0.004 and P 0.000,respectively);MI + depression group:compared with NCS,there was a significant increase in both WMS and TCMS of serum 5-HT (182.50 ± 10.23 pg/ml vs.372.55 ± 52.23 pg/ml and 441.76 ± 23.38 pg/ml,respectively,both P =0.000) and platelet 5-HT (180.83 ± 11.08 pg/ml vs.221.12 ± 22.23 pg/ml and 265.37 ± 29.49 pg/ml,respectively,P =0.011 and P =0.000,respectively).Conclusions:By elevating the amount of 5-HT and modulating 5-HT2AR and SERT levels in serum and platelets,XinLingWan and sertraline were found to exert pretreatment effect on rat models of MI and/or depression.
文摘Background: Our previous studies have demonstrated that the levels of 5-hydroxytryptamine (5-HT) and 5-HT 2A receptor (5-HT2AR) in serum and platelet were associated with depression and myocardial infarction (MI), and pretreatment with ginseng fruit saponins (GFS) before MI and depression had an effect on the 5-HT system. In this study, the effects of GFS on the 5-HT system in the Sprague-Dawley (SD) rats with MI, depression, and MI + depression were evaluated. Methods: A total of eighty SD rats were allocated to four groups: MI, depression, MI + depression, and control groups (n = 20 in each group). Each group included two subgroups (n = 10 in each subgroup): Saline treatment subgroup and GFS treatment subgroup. The levels of 5-HT, 5-HT2AR, and serotonin transporter (SERT) were quantified in serum, platelet lysate, and brain tissue through the enzyme-linked immunosorbent assay method, respectively. Results: Compared with those in the saline treatment subgroups, the levels of 5-HT in serum and platelet lysate statistically significantly increased in the GFS treatment subgroups of MI, depression, and MI + depression groups (serum: all P = 0.000; platelet lysate: P = 0.002, 0.000, 0.000, respectively). However, the 5-HT levels in brain homogenate significantly decreased in the GFS treatment subgroups compared with those in the saline treatment subgroups in MI and depression groups (P = 0.025 and 0.044 respectively), and no significant difference was observed between saline and GFS treatment subgroups in MI + depression group (P = 0.663). Compared with that in GFS treatment subgroup of control group, the 5-HT2AR levels in the platelet lysate significantly decreased in GFS treatment subgroups of MI, depression, and MI + depression groups (all P = 0.000). Compared to those in the saline treatment subgroups, the serum SERT levels significantly decreased in the GFS treatment subgroups in MI, depression, and MI + depression groups (P = 0.009, 0.038, and P = 0.001, respectively), while the SERT levels of platelet lysate significantly decreased in GFS treatment subgroup of MI group (P = 0.000), significantly increased in GFS treatment subgroup of depression group (P = 0.019), and slightly changed in GFS treatment subgroup of MI + depression group (P = 0.219). No significant changes for SERT levels in brain homogenate could be found between the saline and GFS treatment subgroups in MI, depression, and MI + depression groups (P = 0.421, 0.076 and P = 0.642). Conclusions: This study indicated that GFS might inhibit the reuptake of 5-HT from serum to platelet according to decreased 5-HT2AR in platelet and SERT in serum and platelet. The change of 5-HT in serum after GFS treatment was inconsistent with that in the brain. It seemed that GFS could not pass through the blood-brain barrier to affect the central serotonergic system.