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Preliminary study on the antibacterial material basis of Coptidis Rhizome extracts by diffierent methods based on spectrum-effect relationship
NI Xiaoxia, CHEN Qiaoxiu, YANG Yuru, CAO Yixiang
In Press  doi: 10.12206/j.issn.2097-2024.202403054
Abstract(39) HTML(18) PDF (1235KB)(0)
Abstract:
  Objective  To establish the HPLC fingerprints for the different extracts from Coptidis Rhizoma, and investigate the spectrum-effect relationship between HPLC fingerprints and anti-Staphylococcus aureus activity in vitro to analyze the pharmacodynamic material basis.   Methods  Nine kinds of Coptidis Rhizoma extracts were prepared, and establish the HPLC fingerprints for them. The antibacterial rate of each extracts were determined by the broth microcultion method with Staphylococcus aureus as the test bacteria. The grey relational analysis （GRA） method was used to analyze the correlation between the fingerprint data and the in vitro antibacterial test data.   Results  The HPLC fingerprints of nine kinds of Coptidis Rhizoma extracts were established, nine common characteristic fingerprint peaks were calibrated, and 5 peaks were identified by the reference substance comparison method. GRA analysis experiments the correlation between nine peaks and antibacterial effect was 0.559 1~0.803 3; and the peak 3, peak 8 （palmatine hydrochloride）, peak 9 （berberine hydrochloride） were positively correlated with the inhibition of Staphylococcus aureus,well the peak 9 （berberine hydrochloride） has the strongest effect, and its correlation degree is 0.803 3.   Conclusion  The effective substance of antibacterial was preliminarily determined through the study of spectrum-effect relationship for Coptidis Rhizoma extracts,which may be the alkaloids, mostly containing hydrochloride. It provides a reference for further research on the pharmacodynamic material basis of Coptidis Rhizoma.
A survey and research on the operational management issues of drug clinical trials in the yangtze river delta region.
WU Yougen, GU Yuting, XIA Ju, QIAN Qingqing
Accepted Manuscript  doi: 10.12206/j.issn.2097-2024.202311002
Abstract(222) HTML(82) PDF (918KB)(4)
Abstract:
  Objective  To analyze the problems in the operation and management of drug clinical trials and put forward targeted suggestion.   Methods  An electronic questionnaire survey was conducted among medical staff in about 80 hospitals in several medical institutions in the yangtze river delta region.   Results  606 valid questionnaires were received. 71% of the respondents expressed their willingness to study and participate in drug clinical trials. There were significant differences in the cognitive demands, willingness and motivation of the respondents with different occupations and educational backgrounds on the drug clinical trial work （P<0.05）. During the operation of drug clinical trials, respondents reported the main factors affecting the quality of clinical trials which including GCP awareness and subjective enthusiasm of investigators （response rate 27%）, job stability of supervisors and research coordinators （27%）, compliance of subjects （45%）, quality control of the whole process of the circulation of test drugs, medical devices and biological samples （52%）, and the informatization level of clinical trial institutions （30%）.   Conclusion  Hospitals, institutions and project teams could take measures to cultivate and stabilize the drug clinical trial talent team, improve the quality management system of drug clinical trials, improve work efficiency, and promote the high-quality development of drug clinical trials in medical institutions.
Flos Buddlejae self-heating steam eye mask combined with sodium hyaluronate eye drops in the treatment of dry eye disease
TAN Zhaodan, LI Qian, SHI Yan, HU Kangyuan, HUANG Jin
In Press  doi: 10.12206/j.issn.2097-2024.202509010
Abstract(326) HTML(122) PDF (1335KB)(2)
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  Objective  To assess the clinical efficacy of sodium hyaluronate （0.3%） eye drops combined with herbal self-heating steam eye mask in the treatment of dry eye disease.   Methods  A prospective randomized controlled clinical trial was performed on 60 patients diagnosed with dry eye at the ophthalmic clinic of a Grade A, Class Ⅲ hospital in Shanghai from June 2023 to September 2024. Specifically, patients were randomly divided into control group and study group. Patients in the control group were treated with sodium hyaluronate （0.3%） eye drops for six weeks; while in the study group, patients received the eye drops combined with the herbal self-heating steam eye mask mainly containing powders of Flos Buddlejae. Subsequently, comparisons and analysis were performed before and after treatment between the two groups in the clinical symptom questionnaire score traditional Chinese medicine （TCM syndrome score）, the Chinese dry eye questionnaire score and determination of tear film break-up time （BUT）, and curative effect.   Results  The quality control standard of the herbal powder in the self-heating steam eye mask was established through TLC and HPLC, and good heating behavior of the herbal self-heating steam eye mask was ascertained heating temperature （43±5）℃; heating duration （≥20 min）, meeting requirements of the product quality control. After treatment for 6 weeks, BUT was increased, while TCM syndrome score and the Chinese dry eye questionnaire score were both decreased in the study group （P<0.001）. Besides, compared with the control group, TCM syndrome score and the Chinese dry eye questionnaire score were much lower, while the BUT were higher in the study group （P<0.001）. Moreover, the overall response rate in the study group （81.7%） was much better than that in the control group （25.9%）.   Conclusion  The combination of sodium hyaluronate （0.3%） eye drops with herbal self-heating steam eye mask could be applied to the clinical treatment of dry eye disease due to its good clinical effects on relieving dry eye symptoms.
Herbal textual research on food and medicinal homologous of Kui
PAN Qian, MENG Xiangqing, SONG Yitong, WU Tianmengda, JIA Dan, JIA Min
Accepted Manuscript  doi: 10.12206/j.issn.2097-2024.202403020
Abstract(208) HTML(90) PDF (1697KB)(3)
Abstract:
Kui was first recorded in Rites of the Zhou and is the earliest domesticated wild vegetable in China. In the Qi Min Yao Shu, Kui was called “the master of all vegetables” and has a long history of application in China. As a medicine, Kuizi was first recorded in Shen Nong’s Herbal Classic, which has a history of more than 2,000 years of medicinal use and a long history of clinical application. By consulting the ancient and modern herbal literature, the first herbs texts of Kui were examined, various recorded texts, confused products and the history of the original medicinal use were clarified. It was concluded that the ancient herbal texts recorded the base plant of Kui as Malva verticillata L. belonging to family Malvaceae, which provided scientific basis for the development and utilization of Kui.
Application of Raman spectroscopy to study the quality of dermal drug administration and transdermal in vitro
CUI Yingxin, WEI Jingjing, YE Xiaoxia, LE Jian
Accepted Manuscript  doi: 10.12206/j.issn.2097-2024.202409017
Abstract(2197) HTML(394) PDF (1742KB)(22)
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Percutaneous administration is safety, convenience and high compliance. However, the skin structure is complex and individual differences are large, especially the barrier of the stratum corneum leads to the poor bioavailability of topical preparations for the skin. The composition of the prescription for dermal drug administration is complicated, and the quality of the product should be strictly controlled. Raman spectroscopy, as a non-destructive vibrational spectrum can be used to characterize key quality properties of dermal drug administration combined with stoichiometric methods, imaging techniques and other spectral techniques. The purpose of this paper is to review the application of Raman spectroscopy in the study of crystal form, particle size distribution, excipients and in vitro transdermal experiments of dermal drug administration. In vitro transdermal tests, Raman spectroscopy was used to distinguish skin of different species, study the spatial distribution of drugs in skin and the interaction between drugs and skin
Efficacy and safety comparison of EGFR-TKIs monotherapy and combination therapy as first-line treatment for advanced non-small cell lung cancer: a network meta-analysis
CHEN Guanxu, SONG Yutong, GUO Xiuqiang, ZHANG Mi, LIU Zhihong, SONG Hongtao
Accepted Manuscript  doi: 10.12206/j.issn.2097-2024.202504044
Abstract(5969) HTML(2748) PDF (3982KB)(25)
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  Objective  To investigate the efficacy and safety of EGFR-TKIs monotherapy and its combination therapy in the first-line treatment of advanced non-small cell lung cancer（NSCLC）patients with EGFR mutations.   Methods  Databases such as PubMed, Embase, Cochrane Library, and ClinicalTrials.gov were systematically searched to collect eligible phase II/III randomized controlled trials （RCTs）, with the time range from the establishment of the databases to June 2023. Two researchers independently screened the literature, extracted data, and assessed the risk of bias in the studies. Outcome data, including overall survival （OS）, progression-free survival （PFS）, objective response rate （ORR）, grade 3 or higher adverse events （≥3 AEs）, and serious adverse events （SAEs）, were collected. A network meta-analysis was performed using R software （version 4.2.1） under the Bayesian theoretical framework. Subgroup analyses of survival outcomes （OS, PFS） were conducted based on different clinical and pathophysiological characteristics of the patients.   Results  A total of t wenty-eight phase II/III RCTs were included in the study, involving a total of 7 460 patients and 18 first-line treatment regimens. The results showed that in terms of efficacy, gefitinib + pemetrexed-containing chemotherapy performed best in OS and ORR, while osimertinib + bevacizumab performed best in PFS. In terms of safety, furmonertinib had the lowest incidence of ≥3 grade AEs, and osimertinib had the lowest incidence of SAEs. Subgroup analysis results indicated that the efficacy and safety of various treatment regimens differed among patients with different clinical and pathological characteristics.   Conclusion  Monotherapy with third-generation EGFR-TKIs, represented by osimertinib, serves as the preferred therapeutic option considering both efficacy and safety profiles. While some combination therapies can enhance survival benefits, but need to be vigilant about increased toxicity. Clinical decision-making should be tailored based on patient' mutation subtypes, comorbidities, and tolerance.
Optimizing the whole-process quality control system of intravenous drug distribution center based on failure mode and effect analysis
WEI Wei, ZHANG Mingxia, ZHOU Yanping, YAN Lan, TIAN Peng, FENG Xia
Accepted Manuscript  doi: 10.12206/j.issn.2097-2024.202504131
Abstract(2833) HTML(803) PDF (1030KB)(15)
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  Objective  To explore the application effect of a standardized management method based on Failure Mode and Effect Analysis （FMEA） in optimizing the whole-process quality control system of the Intravenous Admixture Service （PIVAS）.   Methods  The quality control management system of the IVAS was optimized by establishing six quality control groups led by the head nurse, with full participation of pharmacy, nursing, and logistical staff, ensuring comprehensive coverage and traceability of all quality control links. Each group conducted Risk Priority Number （RPN） scoring for potential failure modes in their respective quality control processes, and targeted improvement measures were formulated based on the scoring results. The RPN values of failure modes and quality control-related evaluation indicators before and after implementation were compared to achieve closed-loop management.   Results  After one year of management, the RPN values of the six major failure modes significantly decreased compared to those before implementation （P<0.05）. The compounding error rate dropped to 0.13%, the dispensing error rate decreased to 0.95%, the compounding efficiency increased to 98%, the delivery time was shortened by 0.45 hours per batch, the intervention rate for irrational prescriptions rose to 94.87%, satisfaction improved to 96.78%, and the participation rate of quality control personnel reached 95.36% （P<0.05）.   Conclusion  FMEA-based identification of potential failure modes in the whole-process quality control system of the IVAS, combined with risk quantification and targeted interventions, significantly reduces high-risk failure modes, improves compounding accuracy and efficiency, and ensures the safety of clinical intravenous medication and the effectiveness of healthcare quality management.
The hypolipidemic function and hepatic protective effects of Xuetong capsules
HE Lin, CHENG Yanqiong, YE Kanti, ZHAO Juanjuan, LU Huilan, YANG Jun, CHEN Fangjian
Accepted Manuscript  doi: 10.12206/j.issn.2097-2024.202502015
Abstract(5909) HTML(1963) PDF (1288KB)(39)
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  Objective  To investigate the effects of Xuetong capsule on blood lipids and liver lesion in hyperlipidemic model animals.   Method  Sixty ICR mice were randomly divided into six groups. The normal control group was fed with normal diet, the other groups were fed with high-fat diet to induce hyperlipidemia. After four weeks feeding, the three groups were given low, middle, and high doses of Xuetong capsules （0.5, 1.0, and 2.0 g/kg ） by Gavage, and the positive control drug atorvastatin calcium （1.5 mg/kg）. The model group was given solvent （0.5% carboxymethyl cellulose sodium）. After treatment for 8 weeks, the body weight, organ index, blood lipids, blood glucose and liver function index were measured. The liver oil red staining was used to determine the lipid droplet content, and quantitative PCR was used to detect the expression of inflammatory factors TNF-α, IL-6, and IL-1β.   Result  The body weight, the weight of liver and spleen were significantly increased by high-fat diet. High-fat diet increased the organ indexes of the liver and spleen, the degree of liver oil red staining, and also significantly increased the levels of glucose, triglyceride （TG）, cholesterol （CHOL）, and low-density lipoprotein cholesterol （LDL-C） in serum. Compared with the model group, the level of TG has no significant change in low, middle and high doses groups. The level of CHOL in serum was reduced by Xuetong capsule with a dose dependent manner. There were significant difference between the model group and middle, high doses groups. The results of LDL-C were similar, the level of LDL-C was significantly reduced by middle and high doses groups （middle dose 0.55±0.21 mM, high dose 0.52±0.22 mM v.s. 0.81±0.29 mM in model group P<0.01）. Compared with the normal control, there was no significant difference in HDL-C levels between the high-fat model and each drug-treated group. Liver function showed that Xuetong capsules significantly reduced the degree of liver oil red staining and decreased the level of alanine aminotransferase （ALT） induced by high-fat diet. The body weight, the weight and organ indexes of liver and spleen were significantly reduced by atorvastatin calcium. The levels of CHOL, LDL-C, and TG, and the degree of liver oil red staining were also significantly reduced in atorvastatin calcium group. Further studies have shown that high dose of Xuetong capsules significantly reduced the expression of TNF-α and IL-6 induced by high-fat diet （P<0.05）, while the reduction of IL-1β was not so significant （P>0.05）.   Conclusion  Xuetong capsules significantly reduces the body weight of animals with high fat, reduce liver size, fat deposition, inflammatory damage and also significantly reduces blood lipid CHOL and LDL-C levels and reduce transaminase elevation. The above effects may be related to Xuetong capsules reducing the expression of inflammatory factors such as TNF-α and IL-6 in the liver.
Amelioration chloride-induced abdominal aortic aneurysm injury by activation of α7nAChR s calcium in mice
ZHANG Wenjing, FU Hui, GUO Xiaobin, GUO Hao
Accepted Manuscript  doi: 10.12206/j.issn.2097-2024.202409045
Abstract(4978) HTML(2067) PDF (3531KB)(21)
Abstract:
  Objective  To investigate the effect of activating α7 nicotinic acetylcholine receptor （α7nAChR） on calcium chloride （CaCl2）-induced abdominal aortic aneurysm （AAA） injury in mice.   Methods  AAA model was induced by CaCl2 in wild type （WT） mice and α7nAChR knockout （α7nAChR−/-） mice. The effects of knockout of α7nAChR on histological damage in CaCl2-induced AAA mice and expression of inflammatory factors were assessed by HE staining, EVG staining and IHC staining. Rat-derived primary vascular smooth muscle cells （VSMC） were stimulated with TNF-α, which mimicked the inflammatory environment of AAA. The expressions of inflammation-related proteins were detected by using Western-Blot with or without PNU-282987 to activate α7nAChR.   Results  Aortic dilatation was obvious, and the aortic structure was disrupted in CaCl2-induced AAA mice. Knockout of α7nAChR further exacerbated the histological injury and significantly up-regulated the expression of inflammation-related proteins in aorta of AAA mice. It was showed that TNF-α stimulation of VSMC increased inflammation-related protein expression, whereas activation of α7nAChR prevented the phenomenon.   Conclusion  Activation of α7nAChR could attenuate CaCl2-induced AAA injury in mice by suppressing the inflammatory response.
Practice and analysis of the simplified oral premedication protocol with paclitaxel liposome in patients of advanced gastric cancer
ZHONG Ling, CAO Jinfa, HE Miao, TIAN Jing
Accepted Manuscript  doi: 10.12206/j.issn.2097-2024.202406047
Abstract(4848) HTML(1610) PDF (837KB)(14)
Abstract:
[ Abstract ]  Objective  To explore a feasible simplified premedication protocol for preventing hypersensitivity reactions to taxanes.   Methods  The electronic medical record system was used to search for data on 49 patients with advanced gastric cancer who received paclitaxel liposome treatment for the first time in the gastroenterology department of our hospital from 2021-06-01 to 2024-06-30, including premedication protocols, allergic reactions, and other adverse reactions.   Results  31 cases took dexamethasone 9 mg at 12-hour and 6-hour, and took loratadine tablets 10 mg and ranitidine hydrochloride capsules 150 mg at 12-hour before paclitaxel liposomal; 18 cases took dexamethasone 9 mg at 12-hour and 6-hour, and took loratadine tablets 10 mg at 12-hour before paclitaxel liposomal. All patients did not experience any allergic reactions. There were no significant differences in the incidence of other adverse reactions between the two simplified protocols（P>0.05）. Conclusion Based on literature and practice, a dual simplified premedication protocol of oral corticosteroids（GC）combined with oral H1 receptor blockers（H1RA）was proposed, which provided a new idea for doctors. Further clinical studies are needed to verify its effectiveness.
Effect of remimazolam premedication on emergence delirium in children undergoing tonsillectomy and （or）adenoidectomy
WANG Fei, ZHANG Rui, XU Yong, CHEN Xian, ZHU Yumin
Accepted Manuscript  doi: 10.12206/j.issn.2097-2024.202411036
Abstract(2911) HTML(561) PDF (853KB)(11)
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  Objective   To evaluate the effect of remimazolam premedication on emergence delirium （ED） in children undergoing tonsillectomy and （or） adenoidectomy.   Methods  Children aged 3-6 years who underwent tonsillectomy and （or） adenoidectomy with general anesthesia in Zhongshan Hospital Affiliated to Xiamen University from July 2023 to September 2024 were randomly divided into group 0.1 mg/kg remimazolam （group R1）, group 0.2 mg/kg remimazolam （group R2） and normal saline group （group P）. Three groups were sedated preoperatively with remimazolam 0.1 mg/kg, remimazolam 0.2 mg/kg and normal saline, respectively. The primary outcome was the incidence of ED. The secondary outcomes included the parental separation anxiety scale （PSAS） score when entering the operating room, the induction compliance checklist （ICC） score at induction, the anesthetic recovery time, the incidence of rescue propofol for ED, the face, legs, activity, cry, and consolability （FLACC） score and the incidence of postoperative pain during the recovery period, the incidence of adverse reactions during the operation and postoperatively, and the incidence of negative postoperative behavioral changes （NPOBCs） at 1 day, 7 days, and 30 days postoperatively.   Results  A total of 119 children completed the study, including 41 in group R1, 38 in group R2, and 40 in group P. The incidence of ED and propofol rescue, the PSAS scores and ICC scores of group R1 and R2 were lower than that of group P （P<0.05）, and the above results in group R2 was better than those in group R1 （P<0.05）. The FLACC score, the incidence of postoperative pain, and the incidence of adverse reactions between the three groups had no difference （P>0.05）. The incidence of NPOBCs at 1 day and 7 days postoperatively of the group R1 and group R2 was lower than of the group P （P<0.05）, but no difference in that was detected at 30 days postoperatively among the three groups （P>0.05）.   Conclusion  Remimazolam used for preoperative sedation could reduce the incidence of ED in children undergoing tonsillectomy and （or） adenoidectomy, and had a positive effect on alleviating the preoperative anxiety and preventing NPOBCs
The Evolutionary Pattern of Meaning in Life Among University Students and Its Association with Depressive Symptoms
YU Yongju, HE Min
Accepted Manuscript  doi: 10.12206/j.issn.2097-2024.20240380
Abstract(4427) HTML(1312) PDF (985KB)(15)
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This study aimed to clarify the causal relationship between meaning in life and depression symptoms, explore the evolutionary patterns of meaning in life, and assess its impact on the incidence of depressive symptoms. A two-wave longitudinal study with a 12-month interval was conducted among 896 university students recruited from one university. The meaning in life questionnaire and the depression symptom screening questionnaire were administered. The findings showed that: 1）Meaning in life at T1 negatively predicted depression symptoms at T2. Conversely, depression symptoms at T1 did not significantly predict meaning in life at T2. 2）The evolutionary patterns of meaning in life from T1 to T2 could be categorized into four groups: sustained low meaning, meaning improvement, meaning reduction, and sustained high meaning. The incidence of depressive symptoms in these four groups was 13.00%, 5.00%, 12.00%, and 4.00%, respectively. 3）The evolutionary patterns of meaning in life significantly impacted the incidence of depressive symptoms. Compared to the sustained high meaning group, both the sustained low meaning group and the meaning reduction group exhibited significantly higher rates of depression symptoms. The results suggest that psychological health education in universities should focus on individuals with sustained low meaning or meaning reduction, and that enhancing meaning in life serves as an effective intervention approach to reducing the incidence of depression symptoms among university students.
Design, synthesis, and in vitro anti-inflammatory activity of novel Matrine derivatives
LU Yifei, SONG Jia, SHEN Hongxia, ZHAO Qingjie
Accepted Manuscript  doi: 10.12206/j.issn.2097-2024.202503005
Abstract(6116) HTML(2580) PDF (1044KB)(40)
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  Objective  The alkaloids contained in the Chinese herb Sophora flavescens have good anti-inflammatory activity. To investigate the structure-activity relationship between the novel Matrine and the anti-inflammatory activity by modifying the structure of Matrine .   Methods  Fourteen novel Matrine derivatives were obtained by chemical modification using Matrine as the lead compound with Matrine and M19 as positive controls. The cytotoxicity of Matrine derivatives against RAW264.7 cells was detected by the Cell Counting Kit 8 （CCK8） assay, and the relative amount of Nitric Oxide （NO） produced by Matrine derivatives against Lipopolysaccharide （LPS）-induced inflammation model of RAW264.7 cells was detected using an NO assay kit. The Enzyme-Linked Immunosorbent Assay （ELISA） d was used to detect the secretion of Interleukin-6 （IL-6） and Tumor Necrosis Factor Alpha （TNF-α） by Matrine derivatives in LPS-induced inflammation model of RAW264.7 cells.   Results  The novel Matrine derivatives all exhibited lower cytotoxicity compared with M19. The NO inhibition rates of the novel Matrine derivatives were all higher than that of Matrine, and some were higher than that of M19 , with compound A12 having the highest NO inhibition rate. Compounds A11 and A12 showed higher IL-6 inhibition than the control M19 . Additionally, compound A12 had higher TNF-α inhibition than the control M19 .   Conclusion  Compound A12 inhibited the strongest inhibition of NO, IL-6 and TNF-α release and had the best anti-inflammatory activity, which provided an important lead compound for this subsequent in-depth study.
The preventive and therapeutic effects of three ethanol extracts derived from three sources of Stellera chamaejasme L., on imiquimod-induced psoriasis in mice
PENG Ying, LIU Xin, NIE Yiwen, WANG Xinhe, NIAN Hua, ZHU Jianyong
Accepted Manuscript  doi: 10.12206/j.issn.2097-2024.202406029
Abstract(12031) HTML(2903) PDF (2882KB)(31)
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  Objective  To investigate the preventive and therapeutic effects of ethanol extracts derived from three sources of traditional Chinese medicine: Stellera chamaejasme L., Euphorbia fischeriana Steud., and Euphorbia kansuensis Prokh., on imiquimod （IMQ）-induced psoriasis in mice.   Methods  Thirty-six male BALB/c mice were randomly divided into the following 6 groups with 6 mice in each group: blank control, model, Stellera chamaejasme, Euphorbia fischeriana, Euphorbia kansuensis, and calcipotriol. PASI （Psoriasis Area and Severity Index） scores were used to record the changes of skin lesions in each group; HE （hematoxylin-eosin） staining was used to observe the pathological morphology of skin and measure the thickness of the epidermis. Immunohistochemistry was used to detect the expression of nuclear antigen Ki67 in the skin tissues of mice.   Results  Compared with the model group, the three kinds of ethanol extracts can reduce the PASI score, inhibit epidermal thickening, and decrease expression of Ki67 in the psoriasis mice. Among them, the therapeutic effect of Stellera chamaejasme was the most significant and it was better than the commonly used topical drug calcipotriol.   Conclusion  The ethanol extract of Stellera chamaejasme has good anti-psoriatic activity, can inhibit the abnormal proliferation of keratinocytes, can reduce the expression of Ki67, and can significantly improve psoriasis-like skin lesions.
Accepted Manuscript  doi: 10.12206/j.issn.2097-2024.
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Research progress on the source and biosynthesis of tetrodotoxin
WU Wei, YU Dunning, YANG Xingchi, SUN Peng, CHU Zhiyong
2026, 44(1): 1-6.   doi: 10.12206/j.issn.2097-2024.202306029
Abstract(396) HTML(217) PDF (1030KB)(8)
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Tetrodotoxin（TTX）is a potent neurotoxin known for its specific sodium channel blocking effects, widely used in biomedical research. While TTX has been identified in various marine organisms, its true origin remains unclear, and the specific biosynthetic pathways are yet to be elucidated. The reported sources of TTX and the progress in research on TTX biosynthesis were summarized, with a focus on potential microbial sources of TTX, which could provide scientific reference for the production and biosynthesis studies of TTX.
Advances in lactic acid bacteria as recombinant protein drug delivery carrier
WANG Xufang, WANG Yanting, YAO Chunmeng, LU Bin
2026, 44(1): 7-11.   doi: 10.12206/j.issn.2097-2024.202309021
Abstract(15448) HTML(7165) PDF (856KB)(113)
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Lactic acid bacteria (LAB) are promising candidates for live bacterial drug delivery systems owing to their safety, probiotic properties, and ability to colonize the intestinal tract. At present, most research focuses on engineering LAB as carriers for the delivery of therapeutic proteins. As model organisms equipped with a versatile set of genetic tools, LAB can be readily modified to target various diseases and yield significant therapeutic effects. LAB-based carriers offer multiple advantages, including non-invasive delivery, ease of genetic manipulation, and suitability for large-scale production. Consequently, the use of LAB as recombinant protein expression vectors has attracted extensive research interest worldwide. The foundational principles, strategies for enhancing bioavailability, genetic engineering approaches, and the current research and application status of LAB-based drug delivery systems were summarized in this paper.
Original articles
Mechanism of Kinsenoside in alcoholic liver injury in mice
HU Wenyu, SHI Wenjun, WANG Xuewu, LI Shuoshuo
2026, 44(1): 12-19.   doi: 10.12206/j.issn.2097-2024.202309030
Abstract(439) HTML(174) PDF (1696KB)(11)
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  Objective  To investigate the protective effect and potential mechanism of kinsenoside （KD）-the main ingredient of Anoectochilus roxburghii （AR） on alcoholic liver injury in mouse models of chronic and acute alcoholic liver injury, and provide a theoretical basis for the development of drugs for alcoholic liver injury.   Methods  Chronic and acute alcoholic liver injury mouse models were induced by feeding liquid diet containing 30% alcohol and gavage of high doses of alcohol （6 g/kg）, respectively. The KD （50 mg/kg） and AR （250 mg/kg） were administrated by intragastric administration. Body weight, liver index, serum alanine aminotransferase （ALT）, aspartate aminotransferase （AST） levels, serum total triglyceride （TG） and cholesterol （TC） levels were measured; hematoxylin-eosin and oil red O staining was performed on liver tissues; lipid metabolic related genes （PPARα and SREBP1） expression levels were detected by QPCR.   Results  Both models of alcoholic liver injury resulted in increased hepatic transaminase activity and elevated lipids, accompanied by massive vacuolar structure and lipid droplet formation in pathological liver sections. In the chronic alcoholic liver injury model, ALT and AST were significantly reduced after KD or AR treatment （P<0.05, P<0.001）; the transcriptional activity of SREBP1 was significantly reduced after KD or AR treatment （P<0.01, P<0.05）. In the acute alcoholic liver injury model, AST was significantly reduced after KD or AR treatment （P<0.01, P<0.01）, and TG level was significantly decreased （P<0.01, P<0.01）.   Conclusion  KD, as the main active ingredient of AR, played a major role in hepatoprotection in mice. KD treatment significantly alleviated chronic and acute alcoholic liver injury and reduced the lipid deposition in liver; KD promoted lipolysis by increasing PPARα and inhibiting the expression of SREBP1 to reduce the synthesis and accumulation of lipids, thus exerting its role in regulating lipid metabolism, which suggested that KD, as the active ingredient of AR, could be a potential drug for the treatment of ALD.
The mechanism of nicotinamide combined with amphotericin B against Candida albicans based on metabolomics technology
WAN Lizhi, WANG Jinghan, WU Chunrong, LI Ling
2026, 44(1): 20-25.   doi: 10.12206/j.issn.2097-2024.202307034
Abstract(8779) HTML(2564) PDF (1449KB)(40)
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  Objective  To investigate the potential mechanism of nicotinamide combined with amphotericin B against Candida albicans based on metabolomics.   Methods  The intracellular metabolites of C. albicans intervened by different drugs including NAM, AmB, and their combination with a proper concentration were analyzed by gas chromatography-mass spectrometry. The differential metabolites were screened by multivariate statistical analysis and identified by searching the NIST database.   Results  Compared with the control group, the NAM intervention group was hardly separated from it, while the AmB group and NAM+AmB group showed a clear trend of separation. Under the intervention of AmB, 23 metabolites significantly changed compared with the control group, and 28 metabolites remarkably changed after NAM+AmB intervention, including amino acids, organic acids, sugars and other components.   Conclusion  NAM, as an endogenous metabolite of C. albicans, combined with AmB could enhance the effects of AmB in the original metabolic pathway and changed it to a certain extent. It was speculated that AmB combined with NAM may pose more antifungal effect on Candida albicans by regulating the tricarboxylic acid cycle, interfering with amino acid metabolism and influencing polyamine synthesis.
Study on the effect of Lishukang capsule on learning and memory impairment in mice with high altitude hypoxia based on Keap1/Nrf2/HO-1 signal pathway
MENG Panpan, SONG Muge, YANG Shichao, CHEN Keming, YANG Zhongduo, MA Huiping
2026, 44(1): 26-31, 52.   doi: 10.12206/j.issn.2097-2024.202303006
Abstract(14769) HTML(5909) PDF (1804KB)(50)
Abstract:
  Objective  To study the effect of Lishukang capsule on learning and memory impairment in mice with high altitude hypoxia based on Keap1/Nrf2/HO-1 signal pathway.   Methods  Sixty male Balb/C mice were randomly divided into normal control group, hypoxia model group, Rhodiola capsule group (400 mg/kg), low, medium and high dose groups of Lishukang capsule (400、 600、 800 mg/kg), with 10 mice in each group. The normal control group was fed at the local altitude (1 500 m) after 7 days of intragastric administration in each group, and the rest groups were fed at the low pressure and hypoxia animal experimental cabin to simulate the altitude of 7500 m for hypoxia for 3 days. During this period, the normal control group and the hypoxia model group were given normal saline once a day, and 1 hour after the last administration, the eight arm maze was used to test the spatial memory ability of mice under simulated high altitude hypoxia; HE staining was used to observe the morphological changes of hippocampus in mice; Western blot was used to detect the changes of protein content of Keap1/Nrf2/HO-1 signal pathway and apoptosis related protein in hippocampus of mice.   Results  Compared with the normal control group, the spatial memory ability of mice in the hypoxia model group was significantly impaired (P<0.01); HE staining showed that hippocampal neurons in mice were seriously injured; the content of brain tissue Keap1 protein and apoptosis related protein Bax and Caspase-3 increased (P<0.01); the content of Nrf2, HO-1 and apoptosis related protein Bcl-2 decreased （P<0.01）. Compared with the hypoxia model group, the error rate of mice in the high dose group of Lishukang capsule in the eight arm maze behavior experiment was significantly reduced (P<0.05, P<0.01); HE staining showed that the neurons were arranged orderly and the cell morphology was good; the content of Keap1 protein and apoptosis related protein Bax and Caspase-3 decreased (P<0.01); the content of Nrf2, HO-1 and apoptosis related protein Bcl-2 increased（P<0.01）.   Conclusion  High altitude hypoxia can lead to oxidative stress injury in mice and induce the expression of apoptosis related genes, thus aggravating the cognitive dysfunction of mice; Lishukang capsule can effectively improve the learning and memory impairment in mice caused by hypoxia, and its mechanism may be related to regulating the Keap1/Nrf2/HO-1 signal pathway and reducing apoptosis.
The antitumor mechanism of Fructus liquidambaris based on network pharmacology and molecular docking
ZHANG Juan, WANG Chunmin
2026, 44(1): 32-38.   doi: 10.12206/j.issn.2097-2024.202404067
Abstract(573) HTML(151) PDF (2263KB)(3)
Abstract:
  Objective  To predict the active components and pharmacological mechanism of F.liquidambaris in the treatment of tumor based on the network pharmacology and molecular docking.   Methods  The active components of F.liquidambaris were obtained by literature mining and TCMSP database. The potential targets of the active components were predicted by SwissTargetPrediction. The related targets of tumor were screened through GeneCards, OMIM, TTD, DrugBank databases. The common target sites between F.liquidambaris and tumor were obtained after getting the intersection. Through the String database combined with cytoscape software, the treatment of tumor key targets were screened by network topology parameter analysis. In addition, Metascape database was used to perform the gene ontology enrichment analysis and Tokyo Encyclopedia Enrichment analysis of the key targets for the treatment of tumor, and “component-target-pathway” network diagram was constructed. Through AutoDock Vina software, the molecular docking between the active components and targets of F.liquidambaris was verified.   Results  6 active components of F.liquidambaris,29 targets related to tumor were screened out. The results of network analysis showed that F.liquidambaris might play an anti-tumor role by acting on key targets such as TP53, JUN, CASP3, ESR1, PTGS2, CASP9, CASP8 and PPARG. By KEGG enrichment analysis, targets were mainly enriched in cancer pathway, apoptosis pathway,PI3K-Akt signaling pathway, colorectal cancer pathway, small cell lung cancer pathway, P53 signaling pathway and other related pathways, involving cellular response to organic cyclic compound, apoptosis signaling pathway, hematopoiesis and other biological processes. The results of molecular docking showed that key targets and active components could be docked well, the best docking was PTGS2-isostyracin epoxide.   Conclusion  This study preliminarily revealed that F.liquidambari had the advantages of multiple components, multiple targets and multiple pathways in the treatment of tumor, which provided a new idea and direction for the subsequent experimental research.
Photodynamic performance and anti-lung cancer effect of novel chlorin compounds
QIU Yan, WU Hao, DONG Yafen, CHEN Ye, WANG Jian, JIN Hui
2026, 44(1): 39-45.   doi: 10.12206/j.issn.2097-2024.202304011
Abstract(4553) HTML(1496) PDF (2103KB)(26)
Abstract:
  Objective  To study the photodynamic performance and the killing effect of photodynamic therapy on lung cancer of novel chlorin compounds 2-（4-（5,15,20-triphenyl-7H,8H-porphyrin-10-yl） phenoxy） acetic acid（ D1 ）and 4-（4-（5,15,20-triphenyl-7H,8H-porphyrin-10-yl） phenoxy） butanoic acid （ D2 ）.   Methods  The ultraviolet visible absorption spectrum and fluorescence spectrum of D1 and D2 were determined. The singlet oxygen generation capacity of D1 and D2 was measured by using DPBF as singlet oxygen capture agent. Fluorescence assay was used to detect the cellular phagocytosis rate of the compounds in A549 cells, and MTT assay was used to detect their dark toxicity and phototoxicity. A nude mouse model of lung cancer was established to investigate the antitumor activity of the compounds mediated photodynamic action in vivo, and the blood concentration of D2 in nude mice, its distribution in tumor tissue and skin tissue were further detected.   Results   D1 and D2 had strong absorption at 652 nm with the best excitation wavelength at 429 nm and 427 nm, and the optimal emission wavelength was at about 659 nm. They also had a higher singlet oxygen generation rate than the control drug m-THPC. D1 and D2 had no dark toxicity at concentrations below 10 μmol/L, and could be ingested by A549 cells, basically reaching saturation in 18~24 hours. After laser irradiation at 650 nm wavelength, D1 and D2 showed significant antitumor activity in vivo and in vitro （P<0.01）. However, D2 could selectively accumulate in tumor tissues after administration, and the optimal treatment time was less than 30 min after administration.   Conclusion   D2 had excellent photodynamic antitumor activity and could selectively aggregate in tumor tissues, which had the potential to be a candidate drug for photosensitizer and treatment of lung cancer with independent intellectual property rights, and was worth further research.
Research reports
Study on quality standard of Andrographis paniculata standard decoction based on UPLC characteristic chromatogram and quantitative analysis of multi-components by single marker
MA Zhiling, WANG Xiaoya, DU Weibo, ZHANG Zhiqiang, SHEN Jianmei, LIU Yan
2026, 44(1): 46-52.   doi: 10.12206/j.issn.2097-2024.202310021
Abstract(6877) HTML(2904) PDF (1497KB)(21)
Abstract:
  Objective  To establish quality evaluation method of Andrographis paniculata standard decoction by UPLC.   Methods  21 batches of Andrographis paniculata standard decoctions were prepared according to the standardization method of TCM decoction pieces. The UPLC characteristic chromatograms analysis method was established. With andrographolide as a reference, quantitative analysis of multi-components by single marker （QAMS） was established for new neoandrographolide, 14 deoxyandrographolide and dehydrated andrographolide. The results were compared with the external standard method （ESM） to determine the accuracy of the method.   Results  Similarity Evaluation System for Chromatographic Fingerprint of TCM （2012 edition） was used to analyze and compare the characteristic chromatograms, and seven common peaks were determined and five were identified including luteolin-7-O-β-D-glucuronide, andrographolide, neoandrographolide, 14-deoxyandrographolide and dehydroandrographolide. The RSDs of content results of each component by QAMS and ESM were all within 3%.   Conclusion  The determination method was reliable and accurate, which could be used to reflect the intrinsic quality of Andrographis paniculata standard decoction comprehensively and provide the basis for the quality evaluation of Andrographis paniculata formula granules and other preparations.
Determination of lamotrigine in human plasma by central cutting two-dimensional liquid chromatography
LIN Junrong, ZHANG Minxin, ZHAO Xuemei, HUANG Aiwen
2026, 44(1): 53-58.   doi: 10.12206/j.issn.2097-2024.202306020
Abstract(10493) HTML(3338) PDF (1028KB)(22)
Abstract:
Objective To establish a central cutting two-dimensional liquid chromatography for the determination of lamotrigine in human plasma. Methods External standard method was used. The first dimensional chromatographic column: SNCB（T）-1A（silica gel, 4.6 mm×50 mm, 5 μm）, mobile phase A:VCV-1D mobile phase, flow rate: 0.4 ml/min; mobile phase B: water, flow rate: 1.0 ml/min; second dimensional chromatographic column: Symmetry C18 （4.6 mm×250 mm, 5 μm）, mobile phase: acetonitrile-10 mmol/L ammonium acetate solution（V/V=25∶75）, flow rate: 1.0 ml/min; Intermediate column: SBX 4-MA（resin, 3.0 mm×10 mm, 5µm）. The UV detection wavelength: 306 nm, the column temperature: 45 ℃, and the injection volume: 200 μl. Results The linear range of lamotrigine was 1.24-39.50 μg/ml, the lower limit of quantification was 1.24 μg/ml, the detection limit was 0.02 μg/ml, the intra-day precision RSD was less than 5%, the day-to-day precision RSD was less than 10%, the variation of intra-day accuracy ranged from 102.17% to 111.17%, and the daytime accuracy variation ranged from 99.80% to 107.31% the recovery RSD was less than 5%, and the variation range was 89.95% -96.16%. After 24 hours storage at room temperature, repeated freezing and thawing for 3 times and storage at −40 ℃ for 2 weeks, the ratio of the measured value/labeled value ranged from 87.01% to 115.88%. Conclusion In this study, a method with simple operation, good stability, high sensitivity and good reproducibility was established, which could be suitable for clinical monitoring of blood concentration of lamotrigine and provide reliable monitoring data support for clinical individualized medication guidance.
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