ObjectiveAngelicae Sinensis Radix， a commonly used medicinal herb with both medicinal and edible properties， is frequently adulterated in the market， severely affecting the clinical efficacy of preparations. While qualitative identification techniques for adulterants and counterfeits are now relatively mature， quantitative detection methods for adulterated processed products remain unexplored. Quantitative detection research of Angelicae Sinensis Radix and its primary closely related adulterant， "Tu Danggui" （Angelica gigas）， was conducted to establish a herbal quantitative molecular detection （Herb-Q） method for Angelicae Sinensis Radix and its processed products， providing a model for the establishment of quantitative detection technologies for Angelicae Sinensis Radix and related health products. MethodsThe specific single-nucleotide polymorphism （SNP） loci of Angelicae Sinensis Radix and Angelica gigas Nakai were screened based on the complete chloroplast genome sequence. The specific SNP loci of Angelicae Sinensis Radix were selected for quantitative methodological investigations （linearity， limit of quantification， limit of detection， and reproducibility） by mixing the powder of the herbs with different adulteration ratios. Huoxue Zhitong powder with three distinct adulteration ratios （15%， 25%， and 35%） was utilized to ascertain the precision of the Herb-Q method for the quantitative detection of Chinese patent medicines containing Angelicae Sinensis Radix. ResultsBy comparing the 123 chloroplast genome sequences of Angelicae Sinensis Radix， based on the principles of intraspecies conservation， interspecies specificity， and meeting the requirements of pyrophosphate high-throughput sequencing， it was determined that 9 674^th locus （A/G） in the chloroplast genome sequence NC_042826.1 and 38 592^nd locus （T/C） in the chloroplast genome sequence NC_029393.1 could be the exclusive molecular identification loci of Angelicae Sinensis Radix and Angelica gigas Nakai， respectively. The linear relationship R² of the Herb-Q method established by selecting the specific 9 674^th locus （A/G） of Angelicae Sinensis Radix was 0.997 4 （R²>0.99）， indicating an excellent linear relationship. The limits of quantification and detection were established at 2.0%， exhibiting excellent reproducibility ［relative standard deviation（RSD）<2.0%］. The established quantitative system based on the Herb-Q method detected the adulteration amount of counterfeit A. gigas in the Huoxue Zhitong powder， with an average deviation of 1.3% for three molecular quantitative replicates. ConclusionThis research demonstrates that the Herb-Q quantitative detection method established based on the 9 674^th locus （A/G） in the chloroplast genome sequence NC_042826.1 of Angelicae Sinensis Radix has good applicability， objectivity， and accuracy for Angelicae Sinensis Radix and A. gigas， and its processed products. This method has the capacity to provide technical support for the quantitative detection of commercially available Angelicae Sinensis Radix derivatives， including traditional Chinese medicinal preparations， dietary supplements， and nutraceuticals.

ObjectiveAngelicae Sinensis Radix， a commonly used medicinal herb with both medicinal and edible properties， is frequently adulterated in the market， severely affecting the clinical efficacy of preparations. While qualitative identification techniques for adulterants and counterfeits are now relatively mature， quantitative detection methods for adulterated processed products remain unexplored. Quantitative detection research of Angelicae Sinensis Radix and its primary closely related adulterant， "Tu Danggui" （Angelica gigas）， was conducted to establish a herbal quantitative molecular detection （Herb-Q） method for Angelicae Sinensis Radix and its processed products， providing a model for the establishment of quantitative detection technologies for Angelicae Sinensis Radix and related health products. MethodsThe specific single-nucleotide polymorphism （SNP） loci of Angelicae Sinensis Radix and Angelica gigas Nakai were screened based on the complete chloroplast genome sequence. The specific SNP loci of Angelicae Sinensis Radix were selected for quantitative methodological investigations （linearity， limit of quantification， limit of detection， and reproducibility） by mixing the powder of the herbs with different adulteration ratios. Huoxue Zhitong powder with three distinct adulteration ratios （15%， 25%， and 35%） was utilized to ascertain the precision of the Herb-Q method for the quantitative detection of Chinese patent medicines containing Angelicae Sinensis Radix. ResultsBy comparing the 123 chloroplast genome sequences of Angelicae Sinensis Radix， based on the principles of intraspecies conservation， interspecies specificity， and meeting the requirements of pyrophosphate high-throughput sequencing， it was determined that 9 674^th locus （A/G） in the chloroplast genome sequence NC_042826.1 and 38 592^nd locus （T/C） in the chloroplast genome sequence NC_029393.1 could be the exclusive molecular identification loci of Angelicae Sinensis Radix and Angelica gigas Nakai， respectively. The linear relationship R² of the Herb-Q method established by selecting the specific 9 674^th locus （A/G） of Angelicae Sinensis Radix was 0.997 4 （R²>0.99）， indicating an excellent linear relationship. The limits of quantification and detection were established at 2.0%， exhibiting excellent reproducibility ［relative standard deviation（RSD）<2.0%］. The established quantitative system based on the Herb-Q method detected the adulteration amount of counterfeit A. gigas in the Huoxue Zhitong powder， with an average deviation of 1.3% for three molecular quantitative replicates. ConclusionThis research demonstrates that the Herb-Q quantitative detection method established based on the 9 674^th locus （A/G） in the chloroplast genome sequence NC_042826.1 of Angelicae Sinensis Radix has good applicability， objectivity， and accuracy for Angelicae Sinensis Radix and A. gigas， and its processed products. This method has the capacity to provide technical support for the quantitative detection of commercially available Angelicae Sinensis Radix derivatives， including traditional Chinese medicinal preparations， dietary supplements， and nutraceuticals.

Objective To analyze the level of occupational health literacy (OHL) and mental health status in key populations in Jiangsu Province, and explore the impact of OHL on occupational stress, depressive symptoms, anxiety symptoms and insomnia symptoms. Methods A total of 11 181 workers from Jiangsu Province from April to December 2023 were selected as the research subjects using a combination of stratified cluster random sampling and probability proportional sampling method. The OHL levels of the workers, as well as their occupational stress, depression symptoms, anxiety symptoms and insomnia symptoms, were investigated using the Occupational Health Literacy Questionnaire of National Key Populations (including Occupational Health Literacy Scale, Core Occupational Stress Scale, Patient Health Questionaire-9, Generalized Anxiety Disorder 7-item Scale, and Self-Sleep Management Questionnaire). Results The OHL level of the research subjects was 41.7%, and the literacy levels of the four dimensions of occupational health legal knowledge, basic knowledge of occupational health protection, basic skills of occupational health protection, and healthy working style and behavior were 40.6%, 76.4%, 28.0% and 54.4%, respectively. The detection rates of occupational stress, depression symptoms, anxiety symptoms and insomnia symptoms were 21.8%, 17.7%, 26.4% and 29.6%, respectively. The result of multivariable logistic analysis showed that participants with adequate OHL had a lower risk of occupational stress, depressive symptoms, anxiety symptoms, and insomnia symptoms than those without adequate OHL (all P<0.01) after controlling individual and occupational confounding factors. The odds ratios and their 95% confidence intervals were 0.448(0.402-0.499), 0.664(0.593-0.742), 0.705(0.639-0.777) and 0.885(0.809-0.969), respectively. Conclusion OHL is an independent influencing factor for occupational stress, depressive symptoms, anxiety symptoms and insomnia symptoms in key populations from Jiangsu Province. Effective measures should be taken to improve the OHL level of workers, to reduce the risks of occupational stress, depressive symptoms, anxiety symptoms and insomnia symptoms.

Objective To investigate the expression of transcription factor forkhead box protein O(FOXO)genes in gastric cancer tissues and their correlation and clinical significance with Helicobacter pylori(Hp)infection.Methods The expression levels of FOXOs genes(including FOXO1,FOXO3,FOXO4,and FOXO6)were detected by immunohistochemistry in cancer tissues and paracancerous tissues from 41 gastric cancer patients with Hp(-)and 29 gastric cancer patients with Hp(+),as well as in gastric tissues from 30 healthy individuals.The correlation between FOXOs expression and Hp infection,clinical pathological features was analyzed.The relationship between FOXOs expression and survival prognosis of gastric cancer patients was analyzed using the Kaplan-Meier plotter.Results Compared with those in the Hp(-)gastric cancer tissues,the expression levels of FOXO1,FOXO4,and FOXO6 were higher in the Hp(+)gastric cancer tissues(P<0.05).Meanwhile,the expression levels of FOXO1,FOXO3,and FOXO4 in the Hp(+)gastric cancer tissues were lower than that in the paracancerous tissues(P<0.05)and normal tissues(P<0.0001).The expression of FOXOs in gastric cancer tissues was closely correlated with the degree of differentiation,depth of infiltration,lymph node metastasis,and TNM stage of gastric cancer(P<0.05).Meanwhile,FOXO1/3 was associated with the survival prognosis of patients with gastric cancer.Conclusion Hp infection promotes the expression of FOXO1/4/6 in gastric cancer tissues.The high expression of tumor suppressor genes FOXO1/4 may be one of the reasons for better prognosis in Hp(+)gastric cancer patients.FOXOs genes are widely involved in regulating the disease progression of gastric cancer,which has certain value for disease treatment.

Objective To compare the clinical efficacy between laparoscopic suture and extraperitoneal suture for laparoscopic trocar incision with a length≥10 mm.Methods A total of 138 patients with gynecological surgery under laparoscopy admitted to our hospital from March 2017 to March 2023 were divided into two groups according to their admission time:53 cases in the traditional group(after laparoscopic surgery,the skin and subcutaneous tissue were sutured outside the peritoneum to close the trocar incision 10-12 mm in length)from March 2017 to March 2020,and 85 cases in the improved group(the fascia and peritoneum were sutured intraperitoneally under laparoscopy to close the trocar incision 10-12 mm in length)from April 2020 to March 2023.The postoperative incision complications were compared between the two groups.Results There was 1 case of postoperative incision liquefaction in the improved group,without other complications.There were 1 case of postoperative incision bleeding,2 cases of incision infection,1 case of incision liquefaction,1 case of incision dehiscence,and 1 case of incision hernia in the traditional group.The incidence of postoperative incision complications in the improved group was 1.2％(1/85),significantly lower than that in the traditional group[11.3％(6/53);x2=5.029,P=0.025].Conclusion After gynecological laparoscopic surgery,intra-abdominal suture of incision≥10 mm in length significantly reduces the incidence of postoperative incision complications,but the operation is difficult to perform and requires high suturing techniques.

Exosomes are lipid bilayer structures containing various bioactive molecules that can be secreted by almost all cells.However,exosomes released by different types of cells perform differ-ent biological functions,and have been confirmed to participate in physiological processes such as immune response,antigen presentation,cell migration and differentiation,and hair growth through ligand receptor binding.Recent research reports have shown that exosomes can also be secreted from the fetus and placenta,playing an important role in embryo implantation and development,as well as in the treatment of animal pregnancy diseases.In order to offer recommendations for endan-gered and unique economic animals in the diagnosis and treatment of pregnancy and pregnancy-re-lated illnesses,this paper reviewed the most recent developments and innovative theories about the use of extracellular vesicles in pregnancy.

Objective:To explore the mechanism of action of Lycii Cortex in the treatment of periodontitis based on network pharmacology and experimental validation. Methods:Traditional Chinese medicine systems pharmacology database and analysis platform (TCMSP) was used to screen the drug components of Lycii Cortex. Swiss Target Prediction was used to predict the action targets of the drug components. GeneCards was used to obtain the disease targets of periodontitis. Venny 2.1 was used to obtain the intersecting targets. Protein-protein interaction (PPI) network analysis was performed using the STRING, and network diagrams were constructed using Cytoscape. Gene ontology (GO) functional annotation and Kyoto encyclopedia of genes and genomes (KEGG) signaling pathway analysis were performed using Metascape. The Cytoscape software was used to construct "drug-target-pathway" network diagrams. The rats were randomly divided into model group and treatment group, with 5 rats in each group. After modeling for 8 weeks, the treatment group was injected with 1 ml of Lycii Cortex (150 mg Lycii Cortex Granules were dissolved in 1 ml water), and the model group was injected with the same amount of normal saline locally for 4 weeks. Results:A total of 10 active components of Lycii Cortex were founded. These components acted directly on 55 disease targets through multiple pathways to treat periodontitis. The results showed that β-sitosterol, stigmasterol, scopoletin, chrysin, atropine, and ivytin were the core components, and V-Rel reticuloendotheliosis hyperplasia viral oncogene homolog A (RELA), B-cell lymphoma-2 (Bcl-2), prostaglandin-endoperoxide synthase 2 (PTGS2), JUN, cysteinyl aspartate specific proteinase-3 (CASP3), tumor protein 53 (TP53), and nuclear receptor coactivator 2 (NCOA2) were important targets. GO analysis revealed that the most likely biological process (BP) associated with the intersecting genes was mainly involved in the response to steroid hormones, cellular response to organic ring compounds, programmed cell death positive regulation, response to hormones, apoptosis signaling pathway, leukocyte apoptotic process, positive regulation of neuronal apoptotic process, response to oxygen levels, positive regulation of apoptotic process, etc. The cellular component (CC) of the Lycii Cortex was mainly involved in the outer membrane of organelles, outer membrane, transcriptional regulatory complex, outer membrane of mitochondria, RNA polymerase Ⅱ transcriptional regulatory complex, mitochondrial membrane, membrane rafts, membrane microregion, perinuclear region of cytoplasm, etc. The molecular function (MF) of the Lycii Cortex was mainly involved in protein structural domain-specific binding, transcription factor binding, cysteine-type endopeptidase activity involved in apoptotic signaling pathway, DNA-binding transcription factor binding, RNA polymerase Ⅱ-specific DNA-binding transcription factor binding, cysteine-type endopeptidase activity involved in apoptotic process, general transcription initiation factor binding, ubiquitin protein ligase binding, ubiquitin-like protein ligase, etc. The results of KEGG analysis suggested that dermatophytes were mainly involved in the apoptotic process through p53, apoptosis, advanced genetically engineered end products and their receptors (AGE-RAGE), phosphatidylinositol 3-kinase-protein kinase B (PI3K-Akt), interleukin-17 (IL-17), hypoxia-inducible factor-1 (HIF-1), tumor necrosis factor (TNF), mitogen-activated protein kinase (MAPK), and nuclear factor-κB (NF-κB) signaling pathways for the treatment of periodontitis. Animal experiments showed that diclofenac could significantly improve periodontitis, as well as improve the expression levels of RELA, Bcl-2, PTGS2, JUN, CASP3, TP53, and NCOA2. Conclusions:Lycii Cortex mainly regulates enzymatic activity, anti-inflammatory, and other biological processes such as RELA, BCL2, PTGS2, JUN, CASP3, TP53, NCOA2, and other disease targets of the signaling pathways such as p53, apoptosis, AGE-RAGE, PI3K-Akt, IL-17, HIF-1, TNF, MAPK, and NF-κB, etc., to treat periodontitis.

Abstract: Objective To express Mycobacterium tuberculosis Rv2626c protein in Escherichia coli (E. coli) and study the antigenicity of the purified recombinant Rv2626c protein. Methods The amino acid sequence of Rv2626c protein from Mycobacterium tuberculosis H37Rv strain (accession number: CCP45424.1) in GenBank was retrieved and converted into the corresponding DNA sequence according to the codon preference of E. coli. This DNA sequence was synthesized and cloned into pET24a(+) plasmid to construct pET24a(+)-Rv2626c recombinant plasmid. This plasmid was transformed into E. coli BL21(DE3) cells, and the expression of Rv2626c protein was induced under various conditions of isopropyl β-D-thiogalactopyranoside (IPTG) concentrations, temperature, and period. The recombinant Rv2626c protein was identified by SDS-PAGE and Western Blot. The recombinant Rv2626c protein was purified by nickel chelate affinity chromatography and used to immunize violet blue rabbits to prepare anti-Rv2626c anti-serum. The specificity and titer of the serum were respectively detected by Western Blot and enzyme-linked immunosorbent assay (ELISA). Results The recombinant plasmid pET24a(+)-Rv2626c was successfully constructed. SDS-PAGE analysis showed that recombinant Rv2626c was expressed in the recombinant plasmid transformed E. coli with IPTG induction, with a molecular weight of about 14 500, and the size was consistent with the expectation. The optimal expression condition for recombinant Rv2626c protein was at 31 ℃ with 1.0 mmol/L IPTG for 6 hours. The target protein was mainly present in a soluble form, which was consistent with the results of Western blot. The hyperimmunized serum with recombinant Rv2626c protein vaccination showed good specificity, with a titer of 1∶ 256 000 detected by ELISA. Conclusions Mycobacterium tuberculosis Rv2626c protein is successfully expressed in E. coli, and the purified protein has good purity and antigenic activity, laying the foundation for further reveals of its biological functions.

Whether it is the long-term health maintenance of the space station in orbit,or the research on aerospace medical issues,multiple physiological indicators reflecting human physiological functions need to be monitored.With the development of wearable physiological detection technology,the requirements for comfort,low load,and human-machine friendly during the continuous collection and detection of physiological information are becoming increasingly high.This paper designs a set of wearable multi-physiological parameter detection system based on flexible electrodes using fabric electrodes as signal sensors.The system includes hardware such as intelligent clothing and physiological signal detection modules,as well as physiological signal display and storage software,which achieves synchronous detection of multiple physiological signals such as ECG,respiration,and EMG.The design ideas,implementation method,key technologies,and results for collecting,detecting,and processing physiological signals under non-steady state conditions are introduced in this paper.The experimental results show that the system can reliably detect physiological signals such as ECG,respiration,and EMG during motion in flight.

Based on the correlation between Qi and blood in traditional Chinese medicine， the collateral disease theory puts forward that the Qi-collateral go hand in hand with the vessel-collateral of the brain， and to be as close as lips to teeth in structure and function， which is an important basis for the function of brain governing mind. And this theory proposes that deficiency/stagnancy of collateral-Qi， stagnation of collaterals and loss of consciousness are the main pathogenesis of Alzheimer's disease（AD）， which is different from the research strategy of modern medicine focusing on neurons. It is suggested that it is necessary to treat AD from two aspects， including neuronal protection（elimination of pathological products such as β-amyloid and phosphorylated tau protein） and cerebral microvascular protection（protection of cerebral microvascular structure and function， promotion of therapeutic angiogenesis and increase of cerebral blood flow. Tongxinluo capsules is a representative drug for dredging collaterals developed under the guidance of the therapeutic principle of collaterals need circulation， it can protect microvessels and play a neuroprotective role mediated by vascular protection. Clinical studies have confirmed that Tongxinluo capsules can effectively treat AD， vascular dementia and cognitive impairment related diseases， which can provide new ideas and effective treatment ways to prevent and treat AD from neurovascular protection in a comprehensive manner.