Mechanism of effects of electroacupuncture on memory and cognitive impairment in offspring rats with perinatal nicotine exposure. / ç”µé’ˆå¯¹å›´äº§æœŸå°¼å¤ä¸æš´éœ²å­ä»£å¤§é¼ è®°å¿†å’Œè®¤çŸ¥æŸä¼¤å½±å“çš„æœºåˆ¶æŽ¢è®¨.

OBJECTIVES: To observe the effects of electroacupuncture(EA) on memory, cognitive impairment, and the brain-derived neurotrophic factor(BDNF)/N-methyl-D-aspartate receptor subtype 1(NMDAR1) pathway in the brains of offspring rat with intrauterine growth restriction(IUGR) induced by perinatal nicotine exposure(PNE), so as to explore the underlying mechanism. METHODS: SD rats were randomly divided into normal, model, and EA groups, with 4 mothers and 10 offspring rats of each mother in each group. The IUGR model was established by subcutaneous injection of nicotine during pregnancy and lactation. From the 6th day of pregnancy in the mothers until the 21st day after birth of the offspring rats, EA (2 Hz/15 Hz, 1 mA) was administered bilaterally at the "Zusanli"(ST36) of mothers, once daily for 20 min. The brain organ coefficient was used to evaluate the brain development of the offspring rats. The Y-maze test and novel object recognition experiments were performed to assess memory and cognitive function. HE staining was used to observe the development and cellular morphology of the hippocampus and prefrontal cortex in the offspring rats. UV spectrophotometry was used to measure the glutamate(Glu) content in the hippocampus. ELISA was used to detect the BDNF content in the hippocampus. Western blot was performed to measure the protein expression of NMDAR1 in the hippocampus. Immunohistochemistry was used to count the number of BDNF-positive cells in the hippocampus and prefrontal cortex. RESULTS: Compared with the normal group, the brain organ coefficient, exploration time of the novel arm, spontaneous alternation rate, and novel object recognition index, contents of BDNF and expression of NMDAR1 proteins in the hippocampus, the number of BDNF-positive cells in the CA1 and CA3 regions of the hippocampus and prefrontal cortex were significantly reduced(P<0.01), while the Glu content in the hippocampus was significantly increased(P<0.01) in the model group of offspring rats；decreased cell number, scattered arrangement, and disrupted cellular structure were observed in the hippocampus and prefrontal cortex of offspring rats in the model group. Compared with the model group, the brain organ coefficient, exploration time of the novel arm, spontaneous alternation rate, and novel object recognition index, the BDNF contents and NMDAR1 protein expression in the hippocampus, the number of BDNF-positive cells in the hippocampal CA1 and CA3 regions and prefrontal cortex significantly increased(P<0.01, P<0.05), while the Glu content in the hippocampus was significantly decreased (P<0.01) in offspring rats of the EA group；increased cell number, neat arrangement, and reduced cellular damage were observed in the hippocampus and prefrontal cortex in the EA group. CONCLUSIONS: EA has an improving effect on memory and cognitive function impairment in offspring rats with IUGR induced by PNE, and this mechanism may be associated with the regulation of BDNF/NMDAR1 pathway, thereby improving the neuronal quantity and structure of the hippocampus and prefrontal cortex in offspring rats.

[Regulatory effect of five-element music therapy of traditional Chinese medicine for suboptimal health status of liver stagnation and spleen deficiency based on the temperature changes of acupoints].

OBJECTIVE: To observe the effect of five-element music therapy of traditional Chinese medicine (TCM) on the clinical symptoms and the quality of life in the patients with suboptimal health status (SHS) of liver stagnation and spleen deficiency and explore the corresponding specificity changes in the temperature of acupoints when zangfu functions are of dysfunction and recovered to be balanced, separately. METHODS: Sixty patients with SHS of liver stagnation and spleen deficiency were randomized into an observation group and a control group, 30 cases in each one. In the control group, the conventional health education was provided. In the observation group, on the base of the therapeutic regimen as the control group, the patients received the five-element music therapy to pacify the liver qi and strengthen the spleen functions, once every two days, 30 min each time, 3 treatments a week. The course of treatment consisted of 4 weeks. Before and after treatment, the TCM syndrome score and the MOS 36-item short form healthy survey (SF-36) score were compared between the two groups and the clinical therapeutic effect was evaluated. Using infrared thermal imaging, the temperature at the acupoints of the affected organs (liver, spleen), the related organs (gallbladder, stomach) and the other non-related zangfu organs (pericardium, lung) was detected before and after treatment in the two groups. RESULTS: After treatment, the TCM syndrome scores were reduced when compared with those before treatment in the two groups (P<0.01, P<0.05); the reduction in the observation group was larger than that of the control group (P<0.01). The score of each domain for the SF-36 in the observation group and the score of role-emotional domain in the control group were all increased when compared with the scores before treatment (P<0.01, P<0.05); and the score of each domain for the SF-36 in the observation group was higher than that in the control group (P<0.01). The total effective rate was 66.7% (20/30) in the observation group, which was higher than 10.0% in the control group (3/30, P<0.05). In the observation group, the temperature of the yuan-primary point, the back-shu point and the front-mu point related to the liver, as well as those related to the gallbladder after treatment was reduced when compared with the temperature before treatment; and the changes were larger than those of the control group (P<0.01). The temperature of the yuan-primary point, the back-shu point and the front-mu point related to the spleen, as well as the back-shu point and the front-mu point related to the stomach in the observation group was increased when compared with the temperature before treatment (P<0.01); and the changes were larger than those of the control group (P<0.01). For the temperature of the non-specific points related to the liver and spleen, as well as the yuan-primary point, the back-shu point and the front-mu point related to the pericardium and the lung, there was no significant differences when compared with the temperature at the above-mentioned acupoints before and after treatment (P>0.05). CONCLUSION: TCM five-element music therapy associated with the conventional health education may effectively relieve the clinical symptoms and improve the quality of life in the patients with suboptimal health status of liver stagnation and sleep deficiency; and the therapeutic effect is better than the simple health education. The changes in the temperature of acupoints may reflect the functional regulation of the related zangfu organs in the body.

[Effect of electroacupuncture at "Zusanli" (ST 36) and "Yanglingquan" (GB 34) on perinatal nicotine-exposure-induced lung function and morphology of neonatal rats].

OBJECTIVE: To compare the effects of electroacupuncture (EA) at "Zusanli" (ST 36) versus "Yanglingquan" (GB 34) in the pregnant rats on perinatal nicotine-exposure-induced lung function and morphology of newborn rats and explore the rule of acupoint effect in EA for the prevention from lung dysplasia in newborn rats. METHODS: A total of 24 female SD rats were randomized into a normal saline group (S group), a nicotine group (N group), a nicotine-ST 36 group (N + ST 36 group) and a nicotine-GB 34 group (N+GB 34 group), 6 rats in each one. Starting at the 6th day of pregnancy, 0.9% sodium chloride solution was injected subcutaneously in the S group, 1 mg/kg; and in the rest 3 groups, nicotine of the same dose was injected through to the 21st postnatal day to establish the perinatal nicotine-exposure model. Simultaneously, during model preparation, EA was applied at "Zusanli" (ST 36) and "Yanglingquan" (GB 34) in the N+ST 36 group and the N+GB 34 group respectively, once a day, through to the 21st postnatal day. The lung function analytic system for small animal was adopted to observe the changes in lung function indicators in newborn rats, such as peak inspiratory flow (PIF), peak expiratory flow (PEF), expiratory resistance (RE), inspiratory resistance (RI) and dynamic compliance (Cdyn). HE staining was used to observe the morphological changes of lung, such as alveolar fusion and rupture. RESULTS: Compared with the S group, PEF and Cdyn were lower and PIF, RI and RE higher in the N group (all P<0.01), additionally, alveoli were fused and ruptured, alveolar wall thickened, the numbers of alveoli reduced, the interspace of alveoli enlarged and the diameter increased (P<0.01). Compared with the N group, in the N+ST 36 group, PEF and Cdyn were increased, PIF, RI and RE reduced (P<0.05, P<0.01), the alveolar fusion and rupture relieved, the numbers of alveoli increased, alveolar wall thinner, the interpsace of alveoli became normal and the diameter was reduced significantly (P<0.01). In the N+GB 34 group, the changes of lung function and morphological indicators were not significant (P>0.05). CONCLUSION: Electroacupuncture at "Zusanli" (ST 36) in the pregnant rats significantly improves the perinatal nicotine-exposure-induced lung function and morphology of newborn rats than electroacupuncture at "Yanglingquan" (GB 34).

[Electroacupuncture at "Zusanli" (ST36) and "Chize" (LU5) of mother rats exposed to nicotine during pregnancy and lactation has a protective effect on development of lung function and morphology in neonatal rats].

OBJECTIVE: To compare the different effect of electroacupuncture (EA) at "Zusanli" (ST36) and "Chize" (LU5) of mother rats exposed to Nicotine during pregnancy and lactation on lung function and morphological changes in offspring rats, so as to explore the most effective acupoint for improving the development of lung in neonatal rats. METHODS: A total of 24 female pregnancy SD rats were randomly divided into 4 groups: normal control, model, EA-ST36 and EA-LU5 (n＝6 rats in each group). Rats of the normal group were treated by subcutaneous injection of normal saline, and those of the other 3 groups treated by subcutaneous injection of nicotine (1 mg•kg－1•d－1) beginning from the 6th day to about the 21st day of pregnancy (childbirth day) for nicotine exposure during pregnancy and lactation. The daily EA treatment (2 Hz /15 Hz，1 mA) was applied to bilateral ST36 and LU5 for 20 min, beginning from the 6th day of pregnancy to the 21st day (childbirth day). The lung function of the offspring rats including the peak inspiratory flow (PIF), peak expiratory flow (PEF), lung resistance (RL), exhalation resistance (RE)and lung dynamic compliance (Cdyn) was detected by using a lung function analysis system. Histopathological changes (severity of alveolarization) of the offspring rats' lung tissue were observed under microscope after H．E. stain. RESULTS: Compared with the normal group, the PIF, RL and RE values were significantly increased (P<0.01), and PEF and Cdyn values significantly decreased in the model group (P<0.01). The alveolar diameter in the model group was evidently increased relevant to the normal group (P<0.01). Following the intervention, modeling induced increase of PIF, RL, RE and alveolar diameter and decrease of PEF and Cdyn values in the EA-ST36 group, and the increased PIF, RL and RE levels in the EA-LU5 group were obviously suppressed relevant to the model group (P<0.01, P<0.05). Additionally, modeling induced obvious congestion and edema of the alveolar wall, alveolar deformation, rupture and fusion, and reduction of the number of the pulmonary alveoli were evidently milder in both EA-ST36 and EA-LU5 groups. No significant differences were found between the EA-ST36 and EA-LU5 groups in the abovementioned 5 indexes of pulmonary function and alveolar diameter (P>0.05)．. CONCLUSION: EA of ST36 and LU5 of mother rats experiencing nicotine exposure during pregnancy and lactation can improve the lung function and morphological changes in neonatal rats, and the effect of ST36 is relatively better.

Correlation Between Fractional Exhaled Nitric Oxide Levels and Efficacy of Inhaled Corticosteroids in Children With Bronchial Asthma.

To investigate correlation between fractional exhaled nitric oxide (FeNO) levels and efficacy of inhaled corticosteroids in children with bronchial asthma. Between October 2013 and December 2014, 133 cases of children with bronchial asthma were randomly divided into the glucocorticoid group (n = 67; inhaled with Seretide/Pulmicort) and the nonglucocorticoid group (n = 66; inhaled with short-acting ß2 receptor agonist if needed); and alternatively 72 cases of healthy children were regarded as the control group. FeNO, forced expiratory volume in 1 second to predicted value, forced expiratory volume in 1 second/forced vital capacity, induced sputum eosinophils (EOS)%, and total serum immunoglobulin (Ig) E and serum EOS% were detected and childhood asthma control test (C-ACT) scale was investigated pretreatment and 3 and 6 months posttreatment, respectively. FeNO levels, induced sputum EOS%, total serum IgE, and serum EOS% were significantly lower, whereas forced expiratory volume in 1 second to predicted value, forced expiratory volume in 1 second/forced vital capacity, and C-ACT scores were obviously improved in the glucocorticoid group 6 months posttreatment compared with those of pretreatment (all P < 0.05). FeNO levels, induced sputum EOS%, and total serum IgE were significantly lower, whereas C-ACT scores were significantly higher in the glucocorticoid group compared with those of the nonglucocorticoid group (all P < 0.05). In the glucocorticoid group, induced sputum EOS% and total serum IgE showed significantly positive correlations with FeNO levels (r = 0.73, P < 0.01; r = 0.56, P < 0.01), whereas C-ACT scores were negatively correlated with FeNO levels (r = -0.67, P < 0.01). FeNO levels might be correlated with efficacy of inhaled corticosteroids in children with bronchial asthma.