Effects of Banxia Shumi Decoction on 5-hydroxytryptamine receptor, 5-HT, and 5-HIAA of chronic insomnia rats with internal obstruction of phlegm-dampness / 国际中医中药杂志

Objective:To observe the effects of Banxia Shumi Decoction on 5-HT 1AR, 5-HT 2AR, 5-HT, and 5-HIAA of chronic insomnia (CI) rats with internal obstruction of phlegm-damp (IOPD) type, to investigate the mechanisms of Banxia Shumi Decoction on resolving and draining dampness, guiding yang into yin and tranquilizing mind. Methods:A total of 48 Wistar rats were divided into control group, model group, Banxia Shumi Decoction low-dosage group, medium-dosage group, high-dosage group, and diazepam group according to random number table method, with 8 rats in each group. Except the control group, the CI with IOPD rats model were prepared by the method of "high-fat diet + single-platform water environment" in other groups. The rats in the Banxia Shumi Decoction low-, medium-, high-dosage group were treated with Banxia Shumi Decoction by gavage at the dose of 4.69, 9.38 and 18.75 g/kg respectively, the rats in the diazepam group were given 0.52 mg/kg diazepam aqueous solution by gavage, and the rats in the control group and model group were given the equal volume normal saline, once a day for consecutive 2 weeks. The mRNA expressions of 5-HT 1AR, 5-HT 2AR in rat brain stem were detected by qPCR, the protein expressions of 5-HT 1AR, 5-HT 2AR in rat brain raphe nucleus were detected by Western blot, and the contents of 5-HT and 5-HIAA in rat brain stem were determined by HPLC-MS. Results:Compared with model group, the expression of 5-HT 1AR mRNA significantly increased in the Banxia Shumi Decoction low-, medium-, high-dosage group, and diazepam group ( P<0.01); the expression of 5-HT 2AR mRNA significantly decreased in the Banxia Shumi Decoction high-dosage group and diazepam group ( P<0.05), and the expression of 5-HT 1AR and 5-HT 2AR significantly increased in the Banxia Shumi Decoction high-dosage group and diazepam group ( P<0.05 or P<0.01); 5-HT content significantly increased in the Banxia Shumi Decoction medium-, high-dosage group and diazepam group ( P<0.05 or P<0.01); 5-HIAA content significantly increased in the Banxia Shumi Decoction low-, medium-, high-dosage group, and diazepam group ( P<0.05 or P<0.01). Conclusion:Banxia Shumi Decoction may intervene CI with IOPD type and perform the actions of resolving and draining dampness, guiding yang into yin and tranquilizing mind by regulating the expressions of 5-HT 1AR, 5-HT 2AR, 5-HT and 5-HIAA.

Epidemiological characteristics and serum antibody detection of a COVID-19 aggregated outbreak in vaccinated population / 中华预防医学杂志

An epidemiological investigation was conducted on a cluster epidemic of COVID-19 in the vaccinated population in Beijing in 2022, and serum samples were collected from 21 infected cases and 61 close contacts (including 20 cases with positive nucleic acid in the isolation observation period). The results of antibody detection showed that the IgM antibody of two infected persons was positive, and the IgG antibody positive rates of patients who were converted, not converted to positive and infected persons were 36.84% (7/19), 63.41% (26/41) and 71.43% (15/21), respectively. About 98.78% of patients had been vaccinated with the SARS-CoV-2 inactivated vaccine. The positive rate of IgG antibody in patients immunized with three doses of vaccine was 86.00% (43/50), which was higher than that in patients with one or two doses [16.12% (5/31)]. The antibody level of M (Q1, Q3) in patients immunized with three doses was 4.255 (2.303, 7.0375), which was higher than that in patients with one or two doses [0.500 (0.500, 0.500)] (all P values<0.001). The antibody level of patients who were vaccinated less than three months [7.335 (1.909, 7.858)] was higher than that of patients vaccinated more than three months after the last vaccination [2.125 (0.500, 4.418)] (P=0.007). The positive rate and level of IgG antibody in patients who were converted to positive after three doses were 77.78% (7/9) and 4.207 (2.216, 7.099), respectively, which were higher than those in patients who were converted after one or two doses [0 and 0.500 (0.500, 0.500)] (all P values<0.05).

Effect of Astragali Radix Membranaceus in Promoting Blood Circulation and Its Modern Pharmacology Research / 中国实验方剂学杂志

Astragali Radix membranaceus is first recorded in Shennong Bencaojing, which has the effect in replenishing Qi and rising Yang, strengthening the body surface resistance, inducing diuresis to alleviate edema, and supporting for detoxication and tissue generation. As an essential medicine for invigorating Qi and invigorating the spleen, it is often used in diseases, such as Qi deficiency and fatigue, spleen deficiency diarrhea and so on, and has been well known by doctors. In recent years, scholars have a comprehensive understanding of the mechanisms in replenishing Qi, invigorating spleen and promoting water. However, Tao Hongjing first recorded that Astragali Radix membranaceus can " clear the evil blood between the five organs" . In Bencaojing Jizhu, this herbal medicine has the effect in promoting blood circulation at the same time. At present, traditional Chinese medicine often explains the mechanism of this herbal medicine in promoting blood circulation based on the theory of " replenishing Qi and activating blood circulation" and " blood circulation due to Qi circulation" , which however is not equivalent to the fact that this herbal medicine has no blood circulation effect. By summarizing the records of Astragali Radix membranaceus in the herbal literatures of the previous dynasties, it was found that its promoting blood circulation effect was widely used. In summary of the applications of traditional prescriptions and modern prescriptions in promoting blood circulation, Astragali Radix membranaceus can remove obstruction and activate blood circulation, activate blood and promote diuresis, activate blood circulation and strengthen the body resistance, which can best reflect the effect in activating blood circulation of this medicine. Modern pharmacology shows that Astragali Radix membranaceus has a good regulatory effect on the molecular mechanism of blood stasis pathological indexes by activating blood circulation. Due to no in-depth research, there is still room for study. Therefore, this paper thoroughly explores the mechanism of action of Astragali Radix membranaceus in promoting blood circulation by summarizing the effects of Astragali Radix membranaceus in literatures of previous dynasties and modern pharmacological studies, in order to expand the clinical application of Astragali Radix membranaceus and provide theoretical guidance for clinical treatment.

Tag single nucleotide polymorphism rs1532624 located in cholesteryl ester transfer protein gene is associated with atherosclerosis cerebral ischemia

Objective:To investigate the relationship between polymorphisms of rs1532624 and rs289741 loci in cholesteryl ester transfer protein (CETP) genes and atherosclerotic cerebral infarction (ACI).Methods:The CETP gene rs1532624 and rs289741 in 95 patients with ACI and 177 healthy subjects were genotyped by MassARRAY mass spectrometry. Each locus genotype and allele frequency distributions were compared.Results:The difference of allele frequency distribution between the rs1532624 (χConclusion:ACI have a positive correlation with rs1532624 polymorphism, and AA genotype may be susceptible factors of ACI.

Review of Extraction, Content Determination and Physiological Activity of Alkaloids from Zanthoxyli Pericarpium / 中国中医药信息杂志

The property of Zanthoxyli Pericarpium is warm and the taste is spicy, which can be used as food as well as medicine. Its alkaloids have a wide range of pharmacological activity and have good prospects for development in medicine and food. The resources of Zanthoxyli Pericarpium in China are abundant, and the intensive research on its active ingredients can promote the transformation and upgrading of industrial economy. This article reviewed the research status of extraction, content determination and physiological activity of alkaloids from Zanthoxyli Pericarpium, in order to provide references for efficient use of Zanthoxyli Pericarpium.

Tag single nucleotide polymorphism rs1532624 located in cholesteryl ester transfer protein gene is associated with atherosclerosis cerebral ischemia

Objective: To investigate the relationship between polymorphisms of rs1532624 and rs289741 loci in cholesteryl ester transfer protein (CETP) genes and atherosclerotic cerebral infarction (ACI). Methods: The CETP gene rs1532624 and rs289741 in 95 patients with ACI and 177 healthy subjects were genotyped by MassARRAY mass spectrometry. Each locus genotype and allele frequency distributions were compared. Results: The difference of allele frequency distribution between the rs1532624 (χ

Major assessment study and practice based on protecting teaching quality / 中华医学教育探索杂志

The major assessment is the key link of the applied undergraduate education quality guarantee system. According to the spirit of the Ministry of Education, The Qiqihar Medical University developed the internal major assessment study and founded 8 first grade indexes and 26 second level indexes including educational idea, teaching staff, major construction. The university also established the major evaluation system, monitor and improve the university's teaching quality. This system makes sense to the establishment and improvement of undergraduate teaching quality guarantee system and has attained great achievement in the building of teaching staff, major construction, teaching environ-ment and teaching idea. Also the school has rectified the problems, making the work more perfect and the teaching better and better.

Discssuion on strategies to improving clinical teaching quality by comparing results of in-class teaching quality / 中华医学教育探索杂志

Teaching quality is the basis of higher education.This article compared the results of teaching supervision and evaluation between campus and affiliated hospitals of Qiqihar Medical University in 2011.Differences were found out and corresponding strategies were proposed in order to improve the teaching quality and train high-quality talents.

ACE I/D with MTHFR 677CC genotype is an independent genetic factor that protects against middle cerebral artery stenosis:a community study in Foshan of China / 中华神经医学杂志

Objective To explore the genetic interactions between angiotensin-convertingenzyme (ACE) I/D and methylenetetrahydrofolate reductase (MTHFR) C677T genotypes in middlecerebral artery stenosis (MCAS) among the asymptomatic residents in Foshan area of China. MethodsUsing a cluster sampling method, 2500 subjects were randomly selected from the residential communitiesof Rongqi town of Foshan area, Guangdong Province. By means of epidemiological questionnaire survey,physical examination, examination of the biochemical markers and transcraniai color Doppler (TCD), 897eligible subjects (306 males and 591 females) were selected from this population and subsequentlydivided into MCAS group and control group according to the TCD results. ACE and METHFR genepolymorphism analyses were conducted using amplified fragment length polymorphism-polymerase chainreaction (AFLP-PCR) and PCR-restriction fragment length polymorphism (PCR-RFLP). Chi-square test, t test, Mann-Whitney test and logistic regression analysis were used to analyze the data. ResultsGender, age, waist-to-hip ratio (WHR) and Ⅱ+CC genotype distribution in the subjects with MCAS weresignificantly different from those in the control subjects. Logistic regression analysis identified age andACE Ⅱ+ MTHFR CC genotype as the independent factors that affected MCAS. Conclusion There aregenetic interactions between ACE I/D and MTHFR C677T genotypes, and the ACE Ⅱ+MTHFR CCgenotype is an independent genetic factor for protection against MCAS in the asymptomatic residents inFoshan area of China.

Study on the correlation between hypertension and the indexes of vascular endothelial function among people living in the community / 中华流行病学杂志

<p><b>OBJECTIVE</b>To study the features of hypertension and vessel endothelium functional parameter in people living at the community level as well as the risk factors of hypertension. Differences of angiotensin II (Ang II ), prostacyclin (PGI2) and nitric oxide (NO) among normal group and three hypertension groups were also studied.</p><p><b>METHODS</b>By cluster sampling, 1134 adult Han people were selected from the residential communities. Medical history was documented and measurements of body height, body weight, waist circumference, hip circumference and blood pressure were performed. Serum NO levels were determined by cadmium reduction method while plasma Ang II and PGI2 concentration were determined by radioimmunoassay. SPSS 13.0 was used for data analysis.</p><p><b>RESULTS</b>The total ratio of hypertension from people living at the community was 44.5%, with the standardized prevalence of hypertension as 15.3%. With the increase of age, the prevalence of hypertension also increased. Overweight and obesity seemed to be independent risk factors for hypertension. History of smoking and drinking and gender did not enter the logistic equation for hypertension. The amount of plasma Ang II concentration of the three hypertension groups was significantly lower than that in the normal group while the lowest group appeared to from the one that hypertension was under control. The NO and PGI2 levels of the two groups whose hypertension had been known were significantly higher than in the normal group while the difference between the group whose hypertension had not been measured and the normal group was not found.</p><p><b>CONCLUSION</b>The prevalence of hypertension had been increasing. Control of body weight seemed to be a useful way for prevention of hypertension. We assumed that the negative feedback regulation of renin-angiotonin-aldosterone system in hypertension patient still existed which called for the research on the mechanism of hypertension.</p>