Objective To observe the effects of ginkgolides on hypoxia tolerance in mice and on myocardial ischemia injury in rats.Methods The mice were given isoprenaline 20 mg/kg(ip) and the survival time of the mice model under the hypoxic condition was recorded. Rat myocardial ischemia was induced by subcutaneous injection of over- dosage isoprenaline(8 mg/kg). Before modeling, rats were pretreated with ginkgolides 10, 20, 40 mg/kg, of ginkgo biloba( EGb) Extract 300 mg/kg, Propranolol 5 mg/kg,or vehicle for four days. The histological changes of myocardiim, serum creatine phosphokinase (CPK) level and lactate dehydrogenase (LDH) activity, myocardial lactate dehydrogenase(LDH) and superoxide dismutase (SOD) content were detected.Results Ginkgolides could prolong the survival time in the mice under a hypoxic condition, lessen the isoprenaline- induced rat myocardial ischemia, inhibit the activities of serum CPK and LDH and the increase of MDA content in ischemic myocardial tissue, enhance superoxide dismutase (SOD) activity. Conclusion Ginkgolides enhance to hypoxia the tolerance in mice and prevent rats from myocardial ischemic injury. The protective mechanism may be related to its inhibition of the activity of platelet activating factor and oxygen free radical. 

Objective To investigate the effect of sevoflurane anesthesia on the expression of hippocampal apolipoprotein E (ApoE) mRNA of rats.Methods Sixty healthy male Sprague-Dawley rats,weighing 300-400 g,aged 15 weeks,were randomly divided into 2 groups (n=30 each) using a random number table:50％ oxygen group (group C) and 3.2％ sevoflurane group (group S).The rats in group C inhaled 50％ oxygen for 2 h,while those in group S inhaled 3.2％ sevoflurane in 50％ oxygen for 2 h.Morris water maze test was carried out before anesthesia and at 24 and 72 h after anesthesia.At 2,24 and 72 h after anesthesia,hippocampal specimens were obtained for determination of the expression of ApoE mRNA by RT-PCR.Results Compared with group C,no significant change was found in the escape latency,time of staying at the original platform quadrant,frequency of crossing the original platform,and swimming distance before and after anesthesia,and the expression of ApoE mRNA was up-regulated after anesthesia in group S.There was no significant difference in the escape latency,time of staying at the original platform quadrant,frequency of crossing the original platform,and swimming distance before and after anesthesia,and expression of ApoE mRNA at each time point after anesthesia between the two groups.Conclusion Cognitive dysfunction induced by sevoflurane has no relationship with the up-regulated expression of ApoE mRNA in the hippocampus of rats.

Abstract In recent years, the level of physical activity among children and adolescents in China has been gradually declining, and it is significantly impacted by the family environment. The article illustrated how physical activity level of children and adolescents is impacted by the family s natural material environment, which mainly includes the family s residential environment, economic status, screen environment, and sports facilities, as well as by the psychosocial environment which reflects the family s psychological status, intimacy, parenting style and internal structure. The aim is to provide a reference for research on the impact of the family environment on the physical activity of children and adolescents.

Objective:To explore the psychometric characteristics of the Chinese version of the health-related social capital scale.Methods:From March to May 2020, after the original scale was translated into Chinese following the Brislin improved translation model, 251 community-dwelling senior citizens aged 65 and above were selected by convenient sampling method. Data analysis was conducted using SPSS 22.0 and AMOS 22.0, including tests of significance, correlation analysis, exploratory factor analysis, and confirmatory factor analysis.Results:Exploratory factor analysis extracted three factors: social participation, social cohesion, and reciprocity, which accounted for a cumulative contribution rate of 61.72%. Confirmatory factor analysis showed that the three-factor model fitted well(χ 2/ df=1.22, RMSEA=0.04, CFI=0.98, GFI=0.93, IFI=0.98, TLI=0.97). Social capital was significantly correlated with perceived social support positively ( r=0.36, P<0.01), and with loneliness negatively ( r=-0.30, P<0.01). The three factors were significantly correlated with the total scale ( r=0.85, 0.50 and 0.52, respectively, all P<0.01). And correlations between the items of each factor were 0.24-0.55, 0.30-0.59, 0.44-0.70, respectively(all P<0.01). The Cronbach's α coefficients of the total scale and three factors were 0.74, 0.72, 0.65 and 0.62, respectively(all P<0.01), and their retest reliability were 0. 92, 0. 87, 0. 82 and 0. 96, respectively(all P<0.01). Conclusion:The Chinese version of health-related social capital scale conforms to the three-factor model with good reliability and validity, which can be used to assess the social capital status of community-dwelling older adults in China.

Humans are born under the nourishment of heaven and earth qi.The physiological and pathological functions of the human body are influenced by the alternation of cold and heat in the four seasons.Allergic diseases often occur or worsen during seasonal transitions,corresponding to the theory of the spleen dominating the end of the four seasons in traditional Chinese medicine.Splenic dysfunction disrupts the body's internal clock during seasonal transitions,making it unable to adapt to external climate changes,causing the onset or exacerbation of specific allergic symptoms.The theory of"the spleen serves as the guard"originated from Huangdi Neijing,which is a succinct summary of the role of the spleen in defending the body against external pathogens.The theory emphasizes that the spleen transports drinks and foods internally to supplement healthy qi,and regulates defensive qi externally to protect the whole body.This theory is closely linked to the seasonal changes in immune function,thereby influencing the seasonal onset of allergic diseases.This paper explores the roles of the spleen in time-based self-regulation and immune defense against seasonal allergic diseases according to the theory of"spleen serves as the grard."The dysfunction of this protective mechanism,which leads to disharmony in nutritive qi and defensive qi,internal production of phlegm-dampness,and zang-fu organs malnutrition,are the key factors causing recurrent and persistent allergic diseases during seasonal transitions.This study provides insights for elucidating the mechanisms behind seasonal allergic disease outbreaks and their prevention.

Humans are born under the nourishment of heaven and earth qi.The physiological and pathological functions of the human body are influenced by the alternation of cold and heat in the four seasons.Allergic diseases often occur or worsen during seasonal transitions,corresponding to the theory of the spleen dominating the end of the four seasons in traditional Chinese medicine.Splenic dysfunction disrupts the body's internal clock during seasonal transitions,making it unable to adapt to external climate changes,causing the onset or exacerbation of specific allergic symptoms.The theory of"the spleen serves as the guard"originated from Huangdi Neijing,which is a succinct summary of the role of the spleen in defending the body against external pathogens.The theory emphasizes that the spleen transports drinks and foods internally to supplement healthy qi,and regulates defensive qi externally to protect the whole body.This theory is closely linked to the seasonal changes in immune function,thereby influencing the seasonal onset of allergic diseases.This paper explores the roles of the spleen in time-based self-regulation and immune defense against seasonal allergic diseases according to the theory of"spleen serves as the grard."The dysfunction of this protective mechanism,which leads to disharmony in nutritive qi and defensive qi,internal production of phlegm-dampness,and zang-fu organs malnutrition,are the key factors causing recurrent and persistent allergic diseases during seasonal transitions.This study provides insights for elucidating the mechanisms behind seasonal allergic disease outbreaks and their prevention.

Humans are born under the nourishment of heaven and earth qi.The physiological and pathological functions of the human body are influenced by the alternation of cold and heat in the four seasons.Allergic diseases often occur or worsen during seasonal transitions,corresponding to the theory of the spleen dominating the end of the four seasons in traditional Chinese medicine.Splenic dysfunction disrupts the body's internal clock during seasonal transitions,making it unable to adapt to external climate changes,causing the onset or exacerbation of specific allergic symptoms.The theory of"the spleen serves as the guard"originated from Huangdi Neijing,which is a succinct summary of the role of the spleen in defending the body against external pathogens.The theory emphasizes that the spleen transports drinks and foods internally to supplement healthy qi,and regulates defensive qi externally to protect the whole body.This theory is closely linked to the seasonal changes in immune function,thereby influencing the seasonal onset of allergic diseases.This paper explores the roles of the spleen in time-based self-regulation and immune defense against seasonal allergic diseases according to the theory of"spleen serves as the grard."The dysfunction of this protective mechanism,which leads to disharmony in nutritive qi and defensive qi,internal production of phlegm-dampness,and zang-fu organs malnutrition,are the key factors causing recurrent and persistent allergic diseases during seasonal transitions.This study provides insights for elucidating the mechanisms behind seasonal allergic disease outbreaks and their prevention.

Humans are born under the nourishment of heaven and earth qi.The physiological and pathological functions of the human body are influenced by the alternation of cold and heat in the four seasons.Allergic diseases often occur or worsen during seasonal transitions,corresponding to the theory of the spleen dominating the end of the four seasons in traditional Chinese medicine.Splenic dysfunction disrupts the body's internal clock during seasonal transitions,making it unable to adapt to external climate changes,causing the onset or exacerbation of specific allergic symptoms.The theory of"the spleen serves as the guard"originated from Huangdi Neijing,which is a succinct summary of the role of the spleen in defending the body against external pathogens.The theory emphasizes that the spleen transports drinks and foods internally to supplement healthy qi,and regulates defensive qi externally to protect the whole body.This theory is closely linked to the seasonal changes in immune function,thereby influencing the seasonal onset of allergic diseases.This paper explores the roles of the spleen in time-based self-regulation and immune defense against seasonal allergic diseases according to the theory of"spleen serves as the grard."The dysfunction of this protective mechanism,which leads to disharmony in nutritive qi and defensive qi,internal production of phlegm-dampness,and zang-fu organs malnutrition,are the key factors causing recurrent and persistent allergic diseases during seasonal transitions.This study provides insights for elucidating the mechanisms behind seasonal allergic disease outbreaks and their prevention.

Humans are born under the nourishment of heaven and earth qi.The physiological and pathological functions of the human body are influenced by the alternation of cold and heat in the four seasons.Allergic diseases often occur or worsen during seasonal transitions,corresponding to the theory of the spleen dominating the end of the four seasons in traditional Chinese medicine.Splenic dysfunction disrupts the body's internal clock during seasonal transitions,making it unable to adapt to external climate changes,causing the onset or exacerbation of specific allergic symptoms.The theory of"the spleen serves as the guard"originated from Huangdi Neijing,which is a succinct summary of the role of the spleen in defending the body against external pathogens.The theory emphasizes that the spleen transports drinks and foods internally to supplement healthy qi,and regulates defensive qi externally to protect the whole body.This theory is closely linked to the seasonal changes in immune function,thereby influencing the seasonal onset of allergic diseases.This paper explores the roles of the spleen in time-based self-regulation and immune defense against seasonal allergic diseases according to the theory of"spleen serves as the grard."The dysfunction of this protective mechanism,which leads to disharmony in nutritive qi and defensive qi,internal production of phlegm-dampness,and zang-fu organs malnutrition,are the key factors causing recurrent and persistent allergic diseases during seasonal transitions.This study provides insights for elucidating the mechanisms behind seasonal allergic disease outbreaks and their prevention.

Humans are born under the nourishment of heaven and earth qi.The physiological and pathological functions of the human body are influenced by the alternation of cold and heat in the four seasons.Allergic diseases often occur or worsen during seasonal transitions,corresponding to the theory of the spleen dominating the end of the four seasons in traditional Chinese medicine.Splenic dysfunction disrupts the body's internal clock during seasonal transitions,making it unable to adapt to external climate changes,causing the onset or exacerbation of specific allergic symptoms.The theory of"the spleen serves as the guard"originated from Huangdi Neijing,which is a succinct summary of the role of the spleen in defending the body against external pathogens.The theory emphasizes that the spleen transports drinks and foods internally to supplement healthy qi,and regulates defensive qi externally to protect the whole body.This theory is closely linked to the seasonal changes in immune function,thereby influencing the seasonal onset of allergic diseases.This paper explores the roles of the spleen in time-based self-regulation and immune defense against seasonal allergic diseases according to the theory of"spleen serves as the grard."The dysfunction of this protective mechanism,which leads to disharmony in nutritive qi and defensive qi,internal production of phlegm-dampness,and zang-fu organs malnutrition,are the key factors causing recurrent and persistent allergic diseases during seasonal transitions.This study provides insights for elucidating the mechanisms behind seasonal allergic disease outbreaks and their prevention.