Research progress on the etiology of Yunnan unexplained sudden death / 中华地方病学杂志

Yunnan unexplained sudden death is mostly cardiac sudden death caused by malignant arrhythmia, which is a special endemic disease that seriously threatens the health of people in the disease area, and is one of the important public health problems in Yunnan Province. The epidemiological characteristics of Yunnan unexplained sudden death are characterized by a high incidence of young and middle-aged people, and a clear clustering of ethnic groups, families, and villages. The etiology of this disease is not yet fully understood, and the main etiological studies include Trogia venenata poisoning, enterovirus infection, and hereditary heart disease, and hypothesis of the etiology of Keshan disease. After the implementation of comprehensive intervention measures such as health education based on abstinence from Trogia venenata, improving of production and living conditions in the disease area, and strengthening of health monitoring of the population in the disease area, the incidence has shown a significant downward trend in recent years.

Investigation on whole blood collection in Tianjin after fully lifting COVID-19 prevention and control measures / 中国输血杂志

【Objective】 To investigate the situation of whole blood collection in Tianjin after COVID-19 prevention and control measures were fully lifted. 【Methods】 The relevant data on whole blood collection of voluntary blood donors in Tianjin 15 days before Spring Festival (2023.01.07-2023.01.21, when China has managed COVID-19 with measures against Class B infectious disease instead of Class A infectious diseases) and 15 days before Spring Festival in 2018 (2018.02.01- 2018.02.15) and 2019 (2019.01.21-2019.02.04) before the breakout of COVID-19 were retrospectively collected and compared. 【Results】 The comparison between the above period in 2023, 2018 and 2019 was as follows: the number of blood donors was 6 124 vs 3 940 vs 4 069; blood collection volume (U) was 9 623 vs 7 378 vs 7 808; the proportion of first-time blood donors, local blood donors and group blood donors was 69.17% (4 236/6 124) vs 65.86% (2 595/3 940) vs 62.05% (2 525/4 069), 59.31% (3 632/6 124) vs 23.27% (9170) vs 18.19% (740/4 069) and 43.42% (2 659/6 124) vs 8.05% (317/2 595) vs 0.15% (6/4 069) (all P<0.05). 【Conclusion】 The adjustment of COVID-19 prevention and control policy has a significant impact on voluntary blood donation, and the corresponding adjustment of blood donor recruitment strategy in blood centers should be conducted to increase the whole blood collection.

Regulation of Xuanbai Chengqi Decoction on lung-gut injury and intestinal microflora in sepsis mice / 中华急诊医学杂志

Objective:To investigate the effect of Xuanbai Chengqi Decoction (XBCQT) on lung-gut injury and intestinal function, and analyze its effect on intestinal flora in sepsis mice.Methods:C57 male mice were randomly divided into three groups with 12 mice in each group: control group, model group and treatment group. The sepsis model was prepared by intra-peritoneal injection of lipopolysaccharide (LPS) 5 mg/kg. XBCQT was administered by gavage 24 h before, 0.5 h after and 12 h after modeling. The lung, colon and blood samples were collected at 24 h after modeling. The pulmonary and intestinal inflammatory cytokine content of interleukin-1β (IL-1β), IL-6, tumor necrosis factor α (TNF-α) and monocyte chemoattractant protein (MCP-1) was measured by real-time fluorescence quantitative PCR. HE staining was used to evaluate the structural damage and changes of lung and gut, and Western blot and Immunohistochemistry methods were used to analyze the expression of occludin and claudin-1 in intestinal epithelium. Finally, the plasma endotoxin content of each group was tested by Limulus test kit. Fecal DNA of mice was extracted and the changes of intestinal flora in sepsis mice were detected by 16S rDNA quantitative PCR. The measurement data among the three groups were compared by one-way analysis of variance.Results:(1) XBCQT significantly reduced the pulmonary inflammatory cytokine IL-1β, IL-6, TNF-α and MCP-1 expression (all P<0.05), and attenuated lung injury. (2) Compared to the model group, the treatment group exhibited a reduction in intestinal damage and a decrease in the intestinal inflammatory cytokines (all P<0.05). XBCQT increased the expression of epithelial tight junction and mucin of colon, and improved the intestinal epithelium barrier function. (3) XBCQT treatment decreased the content of endotoxin in plasma of sepsis mice ( P<0.05), promoted the growth of beneficial bacteria Akkermansia muciniphila and reduced the expression of Enterococcus in the intestine of sepsis mice (all P<0.05). Conclusions:XBCQT can significantly improve the intestinal inflammatory injury, regulate the intestine epithelium barrier and improve the intestinal function in sepsis mice.

Optimization of ethanol reflux extraction process of Ziziphi Spinosae Semen- Schisandrae Sphenantherae Fructus based on network pharmacology combined with response surface methodology / 中国中药杂志

The present study optimized the ethanol extraction process of Ziziphi Spinosae Semen-Schisandrae Sphenantherae Fructus drug pair by network pharmacology and Box-Behnken method. Network pharmacology and molecular docking were used to screen out and verify the potential active components of Ziziphi Spinosae Semen-Schisandrae Sphenantherae Fructus, and the process evaluation indexes were determined in light of the components of the content determination under Ziziphi Spinosae Semen and Schisandrae Sphenantherae Fructus in the Chinese Pharmacopoeia(2020 edition). The analytic hierarchy process(AHP) was used to determine the weight coefficient of each component, and the comprehensive score was calculated as the process evaluation index. The ethanol extraction process of Ziziphi Spinosae Semen-Schisandrae Sphenantherae Fructus was optimized by the Box-Behnken method. The core components of the Ziziphi Spinosae Semen-Schisandrae Sphenantherae Fructus drug pair were screened out as spinosin, jujuboside A, jujuboside B, schisandrin, schisandrol, schisandrin A, and schisandrin B. The optimal extraction conditions obtained by using the Box-Behnken method were listed below: extraction time of 90 min, ethanol volume fraction of 85%, and two times of extraction. Through network pharmacology and molecular docking, the process evaluation indexes were determined, and the optimized process was stable, which could provide an experimental basis for the production of preparations containing Ziziphi Spinosae Semen-Schisandrae Sphenantherae Fructus.

Overview and reflection on the development of the first batch of the inheritance studios of acupuncture and moxibustion academic schools / 中国针灸

The development status of the first 11 inheritance studios of acupuncture and moxibustion academic schools is summarized. Aiming at the current problems, it is suggested to establish qualitative and quantitative evaluation standards and establish a fair and reasonable evaluation system, build a systematic scientific theory and excavate the inherent laws of the schools, implement standardized management of the schools and protect the personalized characteristics of the schools, open outpatient clinic of acupuncture and moxibustion schools and promote the characteristic diagnosis and treatment technology, to promote the inheritance and development of acupuncture and moxibustion academic schools.

Brief introduction of Qilu modern acupuncture methods / 中国针灸

Qilu acupuncture and moxibustion has promoted the formation and development of traditional Chinese medicine, which has a special historical position. By systematically collecting, sorting out and summarizing the characteristic acupuncture methods and academic ideas of several Qilu acupuncturists since the founding of the People's Republic of China, the understanding of the advantages and characteristics of Qilu modern acupuncture methods is deepened, aiming to exploring the inheritance and development pattern of Qilu acupuncture methods in the new era.

Effect evaluation of various nanofiltration systems for filtering intravenous human immunoglobulin / 中国生物制品学杂志

@#Abstract： Objective To evaluate the filtration effects of various nanofiltration systems on intravenous human immunog⁃ lobulin（IVIG）in order to screen the optimal nanofiltration system. Methods Various nanofilters were used for IVIG filtration to determine the best one and then various prefilters were selected to combine with the optimal nanofilter for IVIG filtration to determine the optimal nanofiltration system. Results The tangential flow（cross flow）nanofilter showed better filtering effect than dead end（direct current）nanofilter，and nanofilter C was the best one. The effect of deep filtration prefilter was better than that of absolute filtration prefilter，and prefilter Y1 in series with nanofilter C was the optimal nanofiltration system. Conclusion The optimal nanofiltration system was determined through the effect evaluation of various nanofiltration systems filtering for IVIG.

Current research status and application prospect of numerical simulation in traditional Chinese medicine drying / 中国中药杂志

With the rapid development of computer technology, numerical simulation has gradually become an important method to study drying process and improve drying equipment. Using computer to simulate the drying process of traditional Chinese medicine(TCM) is characterized by intuitiveness, scientificity, and low cost, which serves as an auxiliary means for technical innovation in TCM drying. This paper summarizes the theories of different drying methods and the research status of numerical simulation in drying, introduces the modeling methods and software of numerical simulation, and expounds the significance of numerical simulation modeling in shortening the research and development cycle, improving drying equipment, and optimizing drying parameters. However, the current numerical simulation method for drying process has problems, such as low accuracy, lack of quantitative indicators for the control of simulation results on the process, and insufficient in-depth research on the mechanism of drug quality changes. Furthermore, this paper put forward the application prospect of numerical simulation in TCM drying, providing reference for the further study of numerical simulation in this field.

Analysis of common pathogenic gene mutations of arrhythmogenic right ventricular cardiomyopathy in Yunnan unexplained sudden death cases / 中华地方病学杂志

Objective:To analyze common pathogenic gene mutations of arrhythmogenic right ventricular cardiomyopathy (ARVC) in Yunnan unexplained sudden death (hereinafter referred to as Yunnan sudden death) cases, and explore the etiological relationship between Yunnan sudden death and ARVC.Methods:Four typical Yunnan sudden death affected counties (cities) were selected as investigation sites. Cryopreserved autopsy cardiac cavity blood samples were collected from Yunnan sudden death cases ( n = 3), and peripheral venous blood samples were harvested from their relatives (first, second, third and immediate degree of kinship, n = 67) and control population ( n = 49). The DNA of blood samples was extracted for amplification and sequencing of 97 exons of 5 common ARVC desmosomal protein [desmoplakin (DSP), desmocollin-2 (DSC2), desmoglein-2 (DSG2), plakophilin-2 (PKP2) and junction plakoglobin (JUP)] genes, and genetic lineage of Yunnan sudden death cases was investigated. Results:A total of 17 gene mutation sites were discovered in Yunnan sudden death cases and their relatives, with 6, 5, 4, 1 and 1 in the DSP, DSC2, DSG2, PKP2 and JUP genes, which were not found in the control population. Among them, 9 were newly discovered mutation sites and 8 were reported mutation sites. The DSP gene exon 24 c.8472 G>C, a pure contractual sense mutation, was common in the relatives of 4 cases in the same family surveyed; and one immediate relative carried a deletion mutation at c.2368 - 2370 of exon 15 of DSC2 gene.Conclusion:Yunnan sudden death cases and their relatives carry mutations in the ARVC desmosomal protein DSP, DSC2, DSG2, PKP2, and JUP genes, and the onset of some Yunnan sudden death may be associated with mutations in the ARVC desmosomal protein genes.

HIV screening results of college group blood donors in Tianjin from 2012 to 2021 / 中国输血杂志

【Objective】 To analyze the infection characteristics and prevalence of HIV among college group voluntary blood donors in Tianjin, China, so as to provide data support for improving the promotion and recruitment strategies of voluntary blood donors, ensuring the safety of blood for clinical use, and formulating HIV prevention and control strategies for adolescents. 【Methods】 The college donors with anti-HIV(+ ) and HIV RNA(+ ) results in Tianjin from January 1, 2012 to December 31, 2021 were selected and analyzed. The relationships among HIV positive rate(anti-HIV+ or HIV RNA+ ), solo anti-HIV positive rate(anti -HIV+ and HIV RNA-), solo HIV RNApositive rate(anti-HIV- and HIV RNA+ ) and double positive rate(anti-HIV+ and HIV RNA+ ) between different years, gender, residence status, age and blood donation history(primary or repeated blood donation) were counted. 【Results】 The HIV positive rate and solo HIV RNA positive rate of college group blood donors from 2012 to 2021 showed a trend with significant increasing(χ2=49.266, 71.379, P<0.05). The HIV positive rate in the controls was significantly higher than that in the college blood donors(χ2=92.414, P< 0.05). The HIV positive rate and solo anti-HIV positive rate showed no differences by genders, but the male presented significant higher positive rate in solo HIV RNA and double positive results than the females(χ2=6.059, 10.900, P<0.05). The HIV positive rate of local resident was significantly lower than those nonlocal students(χ2=47.523, P<0.05). The HIV positive rate differed significantly by ages, with the highest at the age of 18 and the lowest at the age of 21(P<0.05). The difference of HIV double positive rates between the first-time and repeated donors was marginal, while the other three positive rates in thefirst-time donors were significantly higher than those in the repeated donors (P<0.05). 【Conclusion】 In recent years, the HIV positive rate and solo HIV RNA positive rate of college group blood donors present an increasing tendency. The consultation and education on HIV-related issues should be strengthened among college students during blood donation publicity, so as to ensure the safety of blood use and prevent the spread of AIDS in schools.

Analysis on blood donation of college student groups in Tianjin, 2012-2021 / 中国输血杂志

【Objective】 To investigate the basic situation of blood donation given by university students in Tianjin and provide data to support the sustainable development of college blood donation. 【Methods】 The group blood donation in Tianjin universities from 2012 to 2021 was enrolled as the study group and other whole blood donors in the same period as the control. The statistical analysis of the two groups was conducted. 【Results】 From 2012 to 2021, the number of college blood donations in Tianjin increased from 8.93% to 21.32%, with the average annual growth rate of 12.80%, and the units of blood donated increased from 5.44% to 18.82%, with the average annual growth rate of 17.06%. The repeat donation rate in the study group was significantly lower than that of the control(20.74% vs 25.47%, P<0.05). In 2012, the specification of blood donated by college students were mainly 200 mL(87.38%), then in 2021, gradually transitioned to 400 mL(38.77%), followed by 200 mL(35.19%) and 300 mL(26.03%). The rates of 200/300 mL donation and insufficient blood donation in the study group were significantly higher than those in the control, to the contrary, the rate of 400 mL donation was lower in comparison to the control, with statistically significant differences. The deferral rates of initial screening and ALT among college donors differed significantly over the decade: HBsAg showed a significant downward trend, while Hb increased significantly(P<0.05); the deferral items in the study group was significantly lower than the control(P<0.05), except Hb. During the retest period, the deferral rates of ALT and HBV were decreasing, which was the lowest in 2018 then bounced back slightly; the deferral rate of HIV showed a increasing tendency(P<0.05). The deferral rates of all retest items in the study group were lower than those in the control(P<0.05). In the study group, no significant differences were noticed in the deferral rates of retest items by genders, except for ALT and HCV, as males were higher than females. 【Conclusion】 College student groups are an important force in blood donation. A long-term mechanism should be established to safeguard this special group and to provide targeted health education and personalised services to promote the sustainable and healthy development of blood donation in universities.

Whole blood donation related adverse reactions and predisposing factors: a study of blood donors interviewed within 2 weeks after donation / 中国输血杂志

【Objective】 To study the adverse reactions(ADRs) in blood donors after whole-blood donation in terms of frequency and types, so as to explore the predisposing factors of adverse reactions. 【Methods】 A questionnaire was designed to investigate ADRs within 2 weeks after whole blood donation. A total of 812 whole blood donors were randomly selected from September to October 2021. They were interviewed by trained medical staff before leaving the site after blood donation, then followed up by telephone 24 hours and 2 weeks after blood donation. The frequency and type of ADRs were surveyed, and the physical examination data such as gender, age, blood pressure, mean arterial pressure (MAP) and weight were collected to, analyze the predisposing factors that correlated with ADRs. 【Results】 Finally, 734 people [90.39% (734/812)], with valid demographic and physical examination information, were included in this study after on-site interviews and two follow-ups within two weeks after blood donation. The incidence of ADRs was 13.22% (97/734), of which the incidence of on-site vasovagal reactions during blood donation was 10.49% (77/734) (with the constituent ratio as 79.38%, 77/97)and the incidence of ADRs ≤ 2 weeks after leaving the blood collection site was 2.73% (20/734, including 12 donors had (1.63%, 12/734) local symptoms)(with the constituent ratio as 20.62%, 20/97). Multivariate logistic regression analysis showed that the factors influencing the occurrence of ADRs were as follows: 400mL-blood donation (OR 6.312, 95% CI 3.336-11.944), 45~60kg weight (OR 3.744, 95% CI 2.017-6.949), MAP ≤ 90 mmHg (OR 3.101, 95% CI 1.416-6.788), novel blood donor (OR 2.237, 95% CI 1.199-4.174), age of 18~30 years (OR 2.197, 95% CI1.107-4.361), female (OR 1.871, 95% CI 1.026-3.413); blood pressure, occupation, education background, body mass index (BMI) and Hb of blood donors were not the influencing factors and risk predictors of ADRs. 【Conclusion】 The application of on-site interview and two follow-ups after donation can effectively obtain the true information of blood donors′ ADRs, which can timely grasp and predict the relevant factors affecting the occurrence of ADRs, so as to take targeted preventive measures to ensure the safety of blood donors.

Effect of thermophilic bacterium HB27 manganese superoxide dismutase in a rat model of chronic prostatitis/chronic pelvic pain syndrome (CP/CPPS) / 亚洲男科学杂志(英文版)

We investigated the therapeutic effects of superoxide dismutase (SOD) from thermophilic bacterium HB27 on chronic prostatitis/chronic pelvic pain syndrome (CP/CPPS) and its underlying mechanisms. A Sprague-Dawley rat model of CP/CPPS was prepared and then administered saline or Thermus thermophilic (Tt)-SOD intragastrically for 4 weeks. Prostate inflammation and fibrosis were analyzed by hematoxylin and eosin staining, and Masson staining. Alanine transaminase (ALT), aspartate transaminase (AST), serum creatinine (CR), and blood urea nitrogen (BUN) levels were assayed for all animals. Enzyme-linked immunosorbent assays (ELISA) were performed to analyze serum cytokine concentrations and tissue levels of malondialdehyde, nitric oxide, SOD, catalase, and glutathione peroxidase. Reactive oxygen species levels were detected using dichlorofluorescein diacetate. The messenger ribonucleic acid (mRNA) expression of tissue cytokines was analyzed by reverse transcription polymerase chain reaction (RT-PCR), and infiltrating inflammatory cells were examined using immunohistochemistry. Nuclear factor-κB (NF-κB) P65, P38, and inhibitor of nuclear factor-κBα (I-κBα) protein levels were determined using western blot. Tt-SOD significantly improved histopathological changes in CP/CPPS, reduced inflammatory cell infiltration and fibrosis, increased pain threshold, and reduced the prostate index. Tt-SOD treatment showed no significant effect on ALT, AST, CR, or BUN levels. Furthermore, Tt-SOD reduced inflammatory cytokine expression in prostate tissue and increased antioxidant capacity. This anti-inflammatory activity correlated with decreases in the abundance of cluster of differentiation 3 (CD3), cluster of differentiation 45 (CD45), and macrophage inflammatory protein 1α (MIP1α) cells. Tt-SOD alleviated inflammation and oxidative stress by reducing NF-κB P65 and P38 protein levels and increasing I-κBα protein levels. These findings support Tt-SOD as a potential drug for CP/CPPS.

Application of dual-energy CT in differential diagnosis of lung metastases and benign nodules in breast cancer / 中华放射学杂志

Objective:To investigate the application value of dual-energy CT in the differential diagnosis of lung metastases and benign nodules in breast cancer.Methods:The data of 96 patients with pathology-confirmed breast cancer at the Fifth Affiliated Hospital of Wenzhou Medical University from March 2017 to June 2021 were analyzed retrospectively. All patients received dual-energy chest CT scans within 2 weeks before surgery. All 96 patients were female, aged 31-84 (56±12) years. A total of 207 pulmonary nodules from 96 patients were classified into 81 lung metastases and 126 benign nodules according to pathological findings. Conventional CT features [longest diameter, boundary, location and CT value difference between arterial and venous phases (ΔCT) of nodules] and dual-energy CT parameters [standardized iodine concentration (NIC), slope of energy spectrum (λ HU) and normalized effective atomic number (nZ eff) in arterial and venous phases] were analyzed and measured. The χ 2 test, independent samples t test and Kruskal-Wallis rank-sum test were used to analyze the differences of conventional CT features and dual-energy CT parameters between lung metastases and benign nodules. First, the least shrinkage and selection operator (LASSO) regression method was used to screen conventional CT features and dual-energy CT parameters, and then logistic regression analysis was performed to screen out independent risk factors for lung metastases. Receiver operating characteristic (ROC) curves were used to evaluate the efficacy of CT parameters alone and logistic model in differentiating lung metastases from benign lung nodules. Results:There were statistically significant differences between lung metastases and benign nodules in longest diameter, ?CT, NIC, λ HU and nZ eff in arterial and venous phases (all P<0.05). LASSO regression and binary logistic regression analysis showed that the venous phase λ HU (OR=59.413, 95%CI 14.233-248.002, P<0.001) and the venous phase nZ eff (OR=4.508, 95%CI 2.787-7.290, P<0.001) were independent risk factors for predicting lung metastases. Among them, the venous phase λ HU had the highest diagnostic efficiency, with an area under curve (AUC) of 0.794 and an accuracy of 74.88%. The AUC of the logistic model constructed by combining the venous phase λ HU and the venous phase nZ eff could reach 0.958, and the accuracy was improved to 92.27%, which was significantly higher than the efficacy of the two alone ( Z=6.02, 9.54, all P<0.001). Conclusion:Dual-energy CT has great application value in the identification of lung metastases and benign nodules in patients with breast cancer, especially when combined with venous phase λ HU and venous phase nZ eff, the diagnostic efficiency is further improved.

Effect of Maxing Shigantang on Airway Injury and EGFR Expression in Asthma Model Rats / 中国实验方剂学杂志

ObjectiveTo explore the optimal formula of Maxing Shigantang in regulating epidermal growth factor receptor（EGFR）expression and alleviating airway injury in asthmatic rats and to reveal the underlying mechanism. MethodSD male rats were randomly divided into normal group, model group, dexamethasone group (5×10-4 g·kg-1) and Maxing Shigantang 1∶0.5, 1∶1, 1∶2 groups (group A, B, C, 10 g·kg-1), with 8 rats in each group. The other groups except the normal group received nebulization of 2% acetylcholine chloride and 0.4% histamine phosphate for the modeling of asthma. One hour before modeling， the normal group and the model group were given the same amount of normal saline， and the other groups were given the same amount of corresponding drugs， once a day for 7 days. On the 7th day， the model was established and the incubation period of asthma was recorded. The rats were then immediately anesthetized， and arterial blood and tracheal tissue were collected. Enzyme-linked immunosorbent assay （ELISA） was employed to detect the levels of interleukin-2 （IL-2）， interleukin-4 （IL-4）， and tumor necrosis factor-α （TNF-α） in serum. Pathological sections were prepared for the observation of the pathological changes of tracheal tissues and the ultrastructure of epithelial cells in each group. Terminal-deoxynucleotidyl transferase-mediated nick-end labeling （TUNEL） was adopted to detect epithelial cell apoptosis， and in situ hybridization and Western blot were employed to determine the mRNA and protein levels of epidermal growth factor receptor （EGFR）， respectively. ResultCompared with the model group， groups A， B and C prolonged the incubation period of asthma （P<0.05，P<0.01）. Compared with the control group， the model group showed declined IL-2 level （P<0.01）， risen IL-4 and TNF-α levels （P<0.05，P<0.01）， increased airway pathology score， collagen volume fraction， and airway epithelial cell apoptosis index （P<0.01）， and up-regulated mRNA and protein levels of EGFR in trachea tissue （P<0.01）. Compared with the model group， group A showed increased IL-2 level （P<0.05） and declined IL-4 （P<0.05，P<0.01） level， and group B showed declined IL-4 level （P<0.05）. The level of TNF-α in groups A， B， and C declined compared with that in the model group （P<0.01）. Maxing Shigantang repaired the tracheal tissue to different degrees （P<0.05）. Among the three groups， group A inhibited tracheal fibrosis （P<0.05） and had the most significant effect of repairing the ultrastructural changes of airway epithelial cells. Groups A， B and C all inhibited the apoptosis of airway epithelial cells （P<0.05）. All the three groups inhibited the up-regulation of EGFR mRNA level （P<0.05，P<0.01）， and groups B and C inhibited the up-regulation of EGFR protein level （P<0.05，P<0.01）. ConclusionMaxing Shigantang can inhibit the abnormal changes of airway epithelial structure， alleviate airway injury， and can down-regulate the expression of EGFR in the tracheal tissue of asthma model rats. In this study， the optimal compatibility of Maxing Shigantang to repair airway epithelial injury in asthmatic rats was group A， with the Ephedrae Herba-Armeniacae Semen Amarum-Glycyrrhizae Radix et Rhizoma-Gypsum Fibrosum ratio of 1∶0.5∶4∶1.

Drying effect of Chinese medicinal pills based on new spiral vibration drying technology / 中国中药杂志

The present study explored the drying effect of new spiral vibration drying technology on Chinese medicinal pills with Liuwei Dihuang Pills, Zhuanggu Guanjie Pills, and Muxiang Shunqi Pills as model drugs. With the drying uniformity, drying time, energy consumption, pill split, dissolution time, and change of index components as evaluation indicators, the drying effect of spiral vibration drying technology on model drugs was evaluated and compared with traditional drying methods, such as hot air drying and vacuum drying in the oven. The dynamic changes of moisture in Liuwei Dihuang Pills with different drying time were investigated. Compared with the traditional drying methods in the oven(hot air drying and vacuum drying) at 80 ℃, the spiral vibration drying only took 80 min, shortened by 80%, with 10%-13% energy consumed. The results showed that the moisture of Liuwei Dihuang Pills was negatively related to the drying time. By virtue of multi-layer countercurrent drying and super resonant fluidization techniques, the new spiral vibration drying technology can significantly improve the drying quality of Chinese medicinal pills, improve the drying efficiency, and enhance the manufacturing capacity of Chinese medicinal pills. This study is expected to provide references for the innovation and development of new drying technology of Chinese medicinal pills.

Quality control mode based on engineering quality view of Chinese medicine pharmacy / 中国中药杂志

Due to the characteristics of confusing varieties of Chinese medicinal materials, different sources, complex chemical composition, non-standard preparation process, and non-standard pharmaceutical equipment, the quality of Chinese medicinal preparations is difficult to be controlled and evaluated effectively under the current quality control mode and method of Chinese medicinal preparation. The present study proposed an engineering quality view of Chinese medicine pharmacy and a strategy to control the quality of Chinese medicinal preparations based on the current situation. The "overall, dialectical, and dynamic" multi-factor engineering quality view, covering original medicinal materials, preparation technologies, pharmaceutical equipment, and Chinese medicinal preparations, ensures the traceable process, measurable procedures, and feedback quality. The quality control mode of Chinese medicinal preparation with controllable sources, standardized preparation technologies, green pharmaceutical equipment, and intelligent manufacturing is built up.

Quality evaluation of Aralia taibaiensis based on spectrum-activity relationship / 中国中药杂志

A spectrum-activity relationship is established with high performance liquid chromatography(HPLC) fingerprints and the in vitro antioxidant activity to improve the quality evaluation system of Aralia taibaiensis. The HPLC profiles of 12 batches of samples were collected, and the similarity evaluation, heat map analysis and principal component analysis were conducted for the chemometric study of the fingerprint data. Combined with grey correlation analysis, the contributions of the common peaks in the fingerprints to the antioxidant activity were clarified, and the important peaks reflecting the efficacy were identified. The results showed that 17 common peaks were found in 12 batches of A. taibaiensis samples, and 6 of them were identified as saponins. Similarity evaluation, heat map analysis and principal component analysis roughly classified the A. taibaiensis herbs into two categories, i.e.,(1) S1-S10, S12 and(2) S11. Twelve batches of samples showed different antioxidant activities in a dose-dependent manner. In particular, S9 had the strongest antioxidant activity, while S11 was the weakest in antioxidant capacity, which was basically consistent with the overall score results. The results of grey correlation analysis demonstrated that the 17 common peaks scavenged DPPH radicals in the following order: X_3>X_(17)>X_4>X_8>X_7>X_(13)>X_2>X_6>X_(11)>X_(10)>X_(16)>X_(12)>X_9>X_5>X_(14)>X_1>X_(15), and scavenged ABTS radicals in the order of X_4>X_3>X_7>X_8>X_2>X_(17)>X_(13)>X_6>X_(16)>X_(11)>X_5>X_(12)>X_(10)>X_9>X_(14)>X_1>X_(15). Among them, X_3, X_4, X_7(araloside C), X_8 and X_(17) were the important peaks reflecting the efficacy of A. taibaiensis, which were basically consistent with those contained in the principal component 1. In this study, the correlation between the HPLC fingerprints of 12 batches of A. taibaiensis and its antioxidant activity provides a reference for the Q-marker screening and quality control of A. taibaiensis.

Online moisture detection technology and its application prospect in drying of traditional Chinese medicine / 中国中药杂志

Drying is one of the most common unit operations in the production of traditional Chinese medicine. The drying process of traditional Chinese medicine materials is accompanied by the dynamic reduction of water content. As a key index to determine the end of the drying process, the moisture content of materials plays an important role in improving drying efficiency and saving energy. Recently, the drying process of traditional Chinese medicine is mostly monitored by offline detection, and there are few reports of online moisture detection applications. In this paper, the principle and current application of online inspection technology for the material drying process in different fields were introduced. The significance of online detection technology in drying of traditional Chinese medicine was also analyzed. Meanwhile, the application prospect of online detection technology in the field of drying of traditional Chinese medicine was predicted. In response to urgent transformation and upgrading of the traditional Chinese medicine manufacturing industry, the application of online moisture detection technology is expected to be a key breakthrough in the intelligent upgrading of traditional Chinese medicine drying technology and equipment.

Discussion on the theory of / 中国针灸

By collecting and analyzing the explanation/conception, acupoint name, acupoint location, indications, acupuncture and moxibustion techniques and contraindications of