1.Horticultural Therapy Combined with Intradermal Needling for Patients with Generalized Anxiety Disorder of Liver Depression Transforming into Fire Syndrome Under Transcranial Magnetic Stimulation and Psychological Therapy:Clinical Observation of 60 Cases
Wanyun ZHANG ; Jiayi YAN ; Qingyi QIU ; Yumei PENG ; Xiaoling ZHONG ; Jinwen ZHANG ; Rundong TANG ; Miao WU ; Dan HU ; Guang SU
Journal of Traditional Chinese Medicine 2025;66(1):50-58
ObjectiveTo observe the clinical effectiveness of horticultural therapy involving the planting of Chinese medicinal herbs (mint and lily potted plants) combined with intradermal needling therapy for generalized anxiety disorder (GAD) of liver depression transforming into fire syndrome under transcranial magnetic stimulation and basic psychological therapy, and to explore the possible mechanisms of action. MethodsA total of 180 patients with GAD of liver depression transforming into fire syndrome were randomly divided into three groups, horticultural therapy group, intradermal needling group, and horticultural therapy+intradermal needling group, with 60 patients in each. All groups received basic treatment including basic psychological therapy and transcranial magnetic stimulation. The horticultural therapy group received horticultural therapy in addition to the basic treatment; the intradermal needling group received intradermal needling therapy once a week for 8 weeks in addition to the basic treatment; the horticultural therapy+intradermal needling group received both horticultural therapy and intradermal needling therapy, following the same procedures and duration. Hamilton Anxiety Rating Scale (HAMA), Self-Rating Anxiety Scale (SAS), and Pittsburgh Sleep Quality Index (PSQI) scores were assessed at baseline and after 2, 4, 6, and 8 weeks of treatment. Serum levels of adrenocorticotropic hormone (ACTH) and corticosterone (CORT) were measured before treatment and after 8 weeks of treatment. Motor-evoked potential (MEP) baseline levels were recorded before treatment, and MEP amplitude ratios were compared after 1 week and 8 weeks of treatment. Clinical effectiveness and safety were evaluated after 8 weeks of treatment. Pearson correlation analysis was used to examine the relationships between serum ACTH and CORT levels, MEP amplitude, and anxiety. ResultsIn the horticultural therapy group and intradermal needling group, HAMA, SAS and PSQI scores after 4, 6, and 8 weeks treatment were lower than baseline scores (P<0.05). In the horticultural therapy+intradermal needling group, these scores showed a significant decline starting after 2 weeks treatment and continuing through 8 weeks after treatment (P<0.05). The HAMA, SAS, and PSQI scores in the horticultural therapy+intradermal needling group were significantly lower than those in the other two groups after 2, 4, 6, and 8 weeks treatment (P<0.05). After 8 weeks of treatment, serum CORT and ACTH levels in the horticultural therapy+intradermal needling group were significantly lower than baseline levels (P<0.05) and were also lower than those in the horticultural therapy group and intradermal needling group at the same time point (P<0.01). When comparing the level after 8 weeks treatment to that after 1 week treatment, under PAS10 stimulation, the MEP amplitude ratio in the intradermal needling group decreased at 30 minutes, while in the horticultural therapy+intradermal needling group, the MEP amplitude ratio decreased at all time points (P<0.05 or P<0.001); under PAS25 stimulation, the MEP amplitude ratio in the horticultural therapy group increased at 20 minutes, and in the intradermal needle group at 10 minutes (P<0.05). In the horticultural therapy+intradermal needling group, the MEP amplitude ratio increased significantly at all time points after treatment (P<0.001). The cure rate in the horticultural therapy+intradermal needling group (74.14%, 43/58) was significantly higher than that in the horticultural therapy group (30.00%, 18/60) and the intradermal needling group (48.28%, 28/58, P<0.05). Correlation analysis revealed that serum ACTH and CORT levels were positively correlated with HAMA scores (r = 0.488, P<0.01; r = 0.428, P<0.01). Following PAS10 intervention, the MEP amplitude ratio was positively correlated with HAMA scores (r = 0.458, P<0.01), whereas after PAS25 intervention, the MEP amplitude ratio was negatively correlated with HAMA scores (r = -0.562, P<0.01). ConclusionHorticultural therapy combined with intradermal needling treatment, under transcranial magnetic stimulation and basic psychological therapy, demonstrates significant clinical effectiveness in patients with GAD of liver depression transforming into fire syndrome. Its mechanism of action may be related to the regulation of hyperactivation of the hypothalamic-pituitary-adrenal (HPA) axis and the reduction of cortical excitability.
2.Study on mechanism of Yourenji Capsules in improving osteoporosis based on network pharmacology and proteomics.
Yun-Hang GAO ; Han LI ; Jian-Liang LI ; Ling SONG ; Teng-Fei CHEN ; Hong-Ping HOU ; Bo PENG ; Peng LI ; Guang-Ping ZHANG
China Journal of Chinese Materia Medica 2025;50(2):515-526
This study aimed to explore the pharmacological mechanism of Yourenji Capsules(YRJ) in improving osteoporosis by combining network pharmacology and proteomics technologies. The SD rats were randomly divided into a blank control group and a 700 mg·kg~(-1) YRJ group. The rats were subjected to gavage administration with the corresponding drugs, and the blank serum, drug-containing serum, and YRJ samples were compared using ultra performance liquid chromatography-quadrupole time-of-flight tandem mass spectrometry(UPLC-Q-TOF-MS/MS) to analyze the main components absorbed into blood. Network pharmacology analysis was conducted based on the YRJ components absorbed into blood to obtain related targets of the components and target genes involved in osteoporosis, and Venn diagrams were used to identify the intersection of drug action targets and disease targets. The STRING database was used for protein-protein interaction(PPI) network analysis of potential target proteins to construct a PPI network. Gene Ontology(GO) functional enrichment and Kyoto Encyclopedia of Genes and Genomes(KEGG) pathway enrichment were performed using Enrichr to investigate the potential mechanism of action of YRJ. Ovariectomy(OVX) was performed to establish a rat model of osteoporosis, and the rats were divided into a sham group, a model group, and a 700 mg·kg~(-1) YRJ group. The rats were given the corresponding drugs by gavage. The femurs of the rats were subjected to label-free proteomics analysis to detect differentially expressed proteins, and GO functional enrichment and KEGG pathway enrichment analyses were performed on the differentially expressed proteins. With the help of network pharmacology and proteomics results, the mechanism by which YRJ improves osteoporosis was predicted. The analysis of the YRJ components absorbed into blood revealed 23 bioactive components of YRJ, and network pharmacology results indicated that key targets involved include tumor necrosis factor(TNF), tumor protein p53(TP53), protein kinase(AKT1), and matrix metalloproteinase 9(MMP9). These targets are mainly involved in osteoclast differentiation, estrogen signaling pathways, and nuclear factor-kappa B(NF-κB) signaling pathways. Additionally, the proteomics analysis highlighted important pathways such as peroxisome proliferator-activated receptor(PPAR) signaling pathways, mitogen-activated protein kinase(MAPK) signaling pathways, and β-alanine metabolism. The combined approaches of network pharmacology and proteomics have revealed that the mechanism by which YRJ improves osteoporosis may be closely related to the regulation of inflammation, osteoblast, and osteoclast metabolic pathways. The main pathways involved include the NF-κB signaling pathways, MAPK signaling pathways, and PPAR signaling pathways, among others.
Animals
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Drugs, Chinese Herbal/administration & dosage*
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Osteoporosis/metabolism*
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Proteomics
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Rats
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Rats, Sprague-Dawley
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Network Pharmacology
;
Female
;
Protein Interaction Maps/drug effects*
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Capsules
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Humans
;
Signal Transduction/drug effects*
3.Evidence evaluation of 12 commonly-used Chinese patent medicines in treatment of osteoporosis based on Eff-iEC and GRADE.
Guang-Cheng WEI ; Zhi-Long ZHANG ; Xin-Wen ZHANG ; Ye LUO ; Jin-Jie SHI ; Rui MA ; Jie-Yang DU ; Ke ZHU ; Jiu-Cheng PENG ; Yu-Long YA ; Wei CAO
China Journal of Chinese Materia Medica 2025;50(15):4372-4385
This study applied the grading of recommendations assessment, development and evaluation(GRADE) system and the integrated evidence chain-based effectiveness evaluation of traditional Chinese medicine(Eff-iEC) to evaluate the evidence for 12 commonly used Chinese patent medicines for the treatment of osteoporosis, which are frequently recommended in guidelines or expert consensuses. The results showed that Xianling Gubao Capsules/Tablets were rated as C(low-level evidence) according to the GRADE system, and as BA~+B~+(intermediate evidence) according to the Eff-iEC system. Jintiange Capsules were rated as C(low-level evidence) by the GRADE system, and as AA~+B(high-level evidence) by the Eff-iEC system. Gushukang Granules/Capsules were rated as C(low-level evidence) by GRADE system, and as BA~+B~+(intermediate evidence) by Eff-iEC system. Zuogui Pills were rated as C(low-level evidence) by GRADE system, and as AA~(++)B~+(high-level evidence) by Eff-iEC system. Qianggu Capsules were rated as D(extremely low-level evidence) by GRADE system, and as AA~+B~+(high-level evidence) by Eff-iEC system. Zhuanggu Zhitong Capsules were rated as D(extremely low-level evidence) by GRADE system, and as BA~+B(intermediate evidence) by Eff-iEC system. Jingui Shenqi Pills were rated as D(extremely low-level evidence) by GRADE system, and as AA~+B(high-level evidence) by Eff-iEC system. Quanduzhong Capsules were rated as D(extremely low-level evidence) by GRADE system, and as AD~+B~+(low-level evidence) by Eff-iEC system. Epimedium Total Flavones Capsules were rated as D(extremely low-level evidence) by GRADE system, and as AAB~+(high-level evidence) by Eff-iEC system. Yougui Pills were rated as D(extremely low-level evidence) by GRADE system, and as AA~(++)B~(+ )(high-level evidence) by Eff-iEC system. Qigu Capsules were rated as D(extremely low-level evidence) by GRADE system, and as BB~+B(intermediate evidence) by Eff-iEC system. Liuwei Dihuang Pills were rated as C(low-level evidence) by GRADE system, and as AA~(++)B~+(high-level evidence) by Eff-iEC system. Overall, the Eff-iEC system provides a more comprehensive assessment of the effectiveness evidence for traditional Chinese medicine(TCM) than the GRADE system. However, it still has certain limitations that hinder its wider promotion and application. In terms of clinical evidence evaluation, both the Eff-iEC and GRADE systems reflect that the current clinical research quality on Chinese patent medicines for the treatment of osteoporosis is generally low. High-quality clinical trials are still needed in the future to further validate clinical efficacy.
Drugs, Chinese Herbal/therapeutic use*
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Osteoporosis/drug therapy*
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Humans
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Nonprescription Drugs/therapeutic use*
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Evidence-Based Medicine
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Medicine, Chinese Traditional
4.Peripheral platelet count is a diagnostic marker for predicting the risk of rapid ejaculation: findings from a pilot study in rats.
Yuan-Yuan HUANG ; Nan YE ; Dang-Wei PENG ; Guang-Yuan LI ; Xian-Sheng ZHANG
Asian Journal of Andrology 2025;27(1):129-134
Parameters of peripheral blood cell have been shown as the potential predictors of erectile dysfunction (ED). To investigate the clinical significance of hematological parameters for predicting the risk of rapid ejaculation, we established a rat copulatory model on the basis of ejaculation distribution theory. Blood samples from different ejaculatory groups were collected for peripheral blood cell counts and serum serotonin (5-HT) tests. Meanwhile, the relationship between hematological parameters and ejaculatory behaviors was assessed. Final analysis included 11 rapid ejaculators, 10 normal ejaculators, and 10 sluggish ejaculators whose complete data were available. The platelet (PLT) count in rapid ejaculators was significantly lower than that in normal and sluggish ejaculators, whereas the platelet distribution width (PDW) and mean platelet volume (MPV) were significantly greater in rapid ejaculators. Multivariate logistic regression analysis and receiver operating characteristic (ROC) curve analysis showed that the PLT was an independent protective factor for rapid ejaculation. Meanwhile, rapid ejaculators were found to have the lowest serum 5-HT compared to normal and sluggish ejaculators ( P < 0.001). Furthermore, there was a positive correlation between the PLT and serum 5-HT ( r = 0.662, P < 0.001), indicating that the PLT could indirectly reflect the serum 5-HT concentration. In addition, we assessed the association between the PLT and ejaculatory parameters. There was a negative correlation between ejaculation frequency (EF) and the PLT ( r = -0.595, P < 0.001), whereas there was a positive correlation between ejaculation latency (EL) and the PLT ( r = 0.740, P < 0.001). This study indicated that the PLT might be a useful and convenient diagnostic marker for predicting the risk of rapid ejaculation.
Male
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Animals
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Ejaculation/physiology*
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Rats
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Platelet Count
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Pilot Projects
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Serotonin/blood*
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Biomarkers/blood*
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Mean Platelet Volume
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Rats, Sprague-Dawley
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ROC Curve
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Erectile Dysfunction/physiopathology*
5.Clinical research of Zhuangdan Yanshi Decoction combined with dapoxetine hydrochloride in the treatment of premature ejaculation with cholestasis and phlegm disturbance syndrome.
Xing-Yun PENG ; Jian-Guo LIU ; Jiao-Jiao LI ; Xiao-Guang MIAO ; Xu ZHANG
National Journal of Andrology 2025;31(8):732-736
OBJECTIVE:
To investigate the clinical efficacy of Zhuangdan Yanshi Decoction combined with dapoxetine hydrochloride in the treatment of premature ejaculation with cholestasis and phlegm disturbance.
METHODS:
A total of 120 patients diagnosed with premature ejaculation and treated in the Andrology Outpatient Department of Shaanxi Provincial Hospital of Traditional Chinese Medicine from March to December in 2022 were selected and randomly divided into treatment group and control group, with 60 cases in each group. The incubation period of intravaginal ejaculation (IELT), the Diagnostic Scale of Premature Ejaculation (PEDT), the Premature Ejaculation Assessment Scale (PEP), the 5-item Sexual Function Evaluation of Chinese Premature Ejaculation Patients (CIPE-5) and the improvement of traditional Chinese medicine symptom scores were compared before and after the treatment. And the adverse reactions were recorded as well.
RESULTS:
A total of 105 cases were ultimately included, with 55 cases in the treatment group and 50 cases in the control group. Measurable improvements in IELT, PEDT scores, PEP scores, CIPE scores and TCM symptom scores had been found after treatment in both of two groups (P<0.05). Moreover, the improvement in the treatment group was superior to that in the control group (P<0.05). The total effective rate in the treatment group was 89.1%, which was higher than that(84%) in the control group, with no statistically significant difference between the two groups (P>0.05). The incidence of adverse reactions in the treatment group was 9.1%, which was 24% in the control group. There was significantly difference between two groups (P<0.05).
CONCLUSION
The combination therapy with Zhuangdan Yanshi Decoction and dapoxetine hydrochloride for premature ejaculation associated with cholestasis and phlegm disturbance syndrome is definite, and it can reduce the side effects of drugs, which is better than oral dapoxetine hydrochloride alone.
Humans
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Premature Ejaculation/drug therapy*
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Benzylamines/therapeutic use*
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Drugs, Chinese Herbal/therapeutic use*
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Male
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Naphthalenes/therapeutic use*
;
Cholestasis/complications*
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Adult
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Benzyl Compounds/therapeutic use*
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Medicine, Chinese Traditional
;
Treatment Outcome
6.Enhancement of Ca2+ Signal Strength in Astrocytes in the Lateral Septum Improves Cognitive Disorders in Mice After Hemorrhagic Shock and Resuscitation.
Wen-Guang LI ; Lan-Xin LI ; Rong-Xin SONG ; Xu-Peng WANG ; Shi-Yan JIA ; Xiao-Yi MA ; Jing-Yu ZHANG ; Gang-Feng YIN ; Xiao-Ming LI ; Li-Min ZHANG
Neuroscience Bulletin 2025;41(8):1403-1417
Hemorrhagic shock is a common clinical emergency that can aggravate cell injury after resuscitation. Astrocytes are crucial for the survival of neurons because they regulate the surrounding ionic microenvironment of neurons. Although hemorrhagic shock and resuscitation (HSR) injury can impair cognition, it remains unclear how this insult directly affects astrocytes. In this study, we established an HSR model by bleeding and re-transfusion in mice. The social interaction test and new object recognition test were applied to evaluate post-operative cognitive changes, and the results suggest that mice experience cognitive impairment following exposure to HSR. In the HSR group, the power spectral density of β and γ oscillations decreased, and the coupling of the θ oscillation phase and γ oscillation amplitude was abnormal, which indicated abnormal neuronal oscillation and cognitive impairment after HSR exposure. In brief, cognitive impairment in mice is strongly correlated with Ca2+ signal strength in lateral septum astrocytes following HSR.
Animals
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Astrocytes/metabolism*
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Shock, Hemorrhagic/metabolism*
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Resuscitation/adverse effects*
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Male
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Mice
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Calcium Signaling/physiology*
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Mice, Inbred C57BL
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Septal Nuclei/metabolism*
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Cognitive Dysfunction/etiology*
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Disease Models, Animal
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Cognition Disorders/etiology*
7.Construction of a Prognostic Model for Lysosome-dependent Cell Death in Gastric Cancer Based on Single-cell RNA-seq and Bulk RNA-seq Data.
Peng NI ; Kai Xin GUO ; Tian Yi LIANG ; Xin Shuang FAN ; Yan Qiao HUA ; Yang Ye GAO ; Shuai Yin CHEN ; Guang Cai DUAN ; Rong Guang ZHANG
Biomedical and Environmental Sciences 2025;38(4):416-432
OBJECTIVE:
To identify prognostic genes associated with lysosome-dependent cell death (LDCD) in patients with gastric cancer (GC).
METHODS:
Differentially expressed genes (DEGs) were identified using The Cancer Genome Atlas - Stomach Adenocarcinoma. Weighted gene co-expression network analysis was performed to identify the key module genes associated with LDCD score. Candidate genes were identified by DEGs and key module genes. Univariate Cox regression analysis, and least absolute shrinkage and selection operator regression and multivariate Cox regression analyses were performed for the selection of prognostic genes, and risk module was established. Subsequently, key cells were identified in the single-cell dataset (GSE183904), and prognostic gene expression was analyzed. Cell proliferation and migration were assessed using the Cell Counting Kit-8 assay and the wound healing assay.
RESULTS:
A total of 4,465 DEGs, 95 candidate genes, and 4 prognostic genes, including C19orf59, BATF2, TNFAIP2, and TNFSF18, were identified in the analysis. Receiver operating characteristic curves indicated the excellent predictive power of the risk model. Three key cell types (B cells, chief cells, and endothelial/pericyte cells) were identified in the GSE183904 dataset. C19orf59 and TNFAIP2 exhibited predominant expression in macrophage species, whereas TNFAIP2 evolved over time in endothelial/pericyte cells and chief cells. Functional experiments confirmed that interfering with C19orf59 inhibited proliferation and migration in GC cells.
CONCLUSION
C19orf59, BATF2, TNFAIP2, and TNFSF18 are prognostic genes associated with LDCD in GC. Furthermore, the risk model established in this study showed robust predictive power.
Stomach Neoplasms/pathology*
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Humans
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Prognosis
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Lysosomes/physiology*
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RNA-Seq
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Cell Death
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Single-Cell Analysis
;
Gene Expression Regulation, Neoplastic
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Cell Proliferation
;
Single-Cell Gene Expression Analysis
8.Effects of Total Intravenous Anesthesia and Inhalational Anesthesia on Postoperative Recovery in Patients Undergoing Transsphenoidal Pituitary Surgery:A Systematic Review.
Yun-Ying FENG ; Yu-Pei ZHANG ; Yue-Lun ZHANG ; Bing XING ; Wei LIAN ; Xiao-Peng GUO ; Lu-Lu MA ; Yu-Guang HUANG
Acta Academiae Medicinae Sinicae 2025;47(3):434-440
Objective To systematically evaluate the effects of total intravenous anesthesia and inhalational anesthesia on postoperative recovery in patients undergoing transsphenoidal pituitary tumor resection.Methods A comprehensive search was conducted in international biomedical databases including Ovid Medline,Embase,CINAHL(EBSCO),Cochrane Library,and Web of Science,from inception to July 4,2023.Additionally,ClinicalTrials.gov and the World Health Organization International Clinical Trials Registry Platform were searched for ongoing and completed trials.The randomized controlled trials(RCT)comparing total intravenous anesthesia and inhalational anesthesia in patients undergoing transsphenoidal surgery for pituitary tumors were included.The methodological quality of the included studies was evaluated by the Cochrane Collaboration tool.Relevant data were extracted and synthesized for analysis.Results A total of 327 records were identified,of which eight RCTs met the inclusion criteria.Four studies showed that the patients receiving desflurane or sevoflurane anesthesia experienced faster emergence from anesthesia than those receiving propofol.Two studies indicated that patients in the propofol group had lower levels of emergence agitation and a lower incidence of early postoperative nausea and vomiting.The results on postoperative cognitive function were inconsistent across studies.No differences were found between the groups in terms of postoperative complications or overall recovery quality during hospitalization.Conclusions Inhalational anesthesia appears to provide an advantage in promoting faster emergence following transsphenoidal pituitary surgery,whereas total intravenous anesthesia may contribute to smoother and more stable recovery.Further high-quality studies are needed to clarify the effects of different anesthetic techniques on both short- and long-term postoperative recovery.
Humans
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Anesthesia, Intravenous
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Pituitary Neoplasms/surgery*
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Anesthesia, Inhalation
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Randomized Controlled Trials as Topic
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Anesthesia Recovery Period
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Pituitary Gland/surgery*
;
Postoperative Period
9.Inhibitory effect of Heidihuang Pills on renal fibrosis in a rat model of chronic renal failure via regulation of IGF-1 expression
Li-Ying YE ; Guang-Hui PAN ; Ping ZHAO ; Ze-Peng WANG ; Cheng LIU ; Ying-Ying LI ; Fa-Rong ZHANG
Chinese Traditional Patent Medicine 2024;46(3):788-794
AIM To explore the effect of Heidihuang Pills on renal fibrosis in a rat model of chronic renal failure(CRF)and its mechanism.METHODS Wistar rats were randomly divided into the blank group for normal feeding and the model group for the establishment of CRF rat models by 5/6 nephrectomy.Subsequently,the successfully established rat models were randomly divided into the model group,the Heidihuang Pills group(10.43 g/kg),and the Heidihuang Pills+IGF-1R blocker(JB1)group for a regimen of 7-day subcutaneous injection of 18 μg/kg JB1 followed by gavage of 10.43 g/kg Heidihuang Pills.Eight weeks after the administration,the rats had their serum levels of Scr and BUN detected;their pathological changes of renal tissue observed by HE and Masson staining;their renal protein expressions of TGF-β,HIF-1α and α-SMA detected by immunohistochemistry;their renal protein expressions of IGF-1R and TGF-β detected by Western blot;and their renal mRNA expressions of IGF-1R and TGF-β detected by RT-qPCR.RESULTS Compared with the blank group,the model group displayed increased serum levels of Scr and BUN(P<0.05);increased,degree of renal fibrosis,and renal fibrosis area(P<0.05);increased renal expressions of TGF-β,HIF-1α,α-SMA proteins and TGF-β mRNA(P<0.05);and decreased expressions of IGF-1R mRNA and protein(P<0.05).Compared with the model group,the Heidihuang Pills group displayed decreased serum Scr and BUN levels(P<0.05);decreased inflammatory cells in renal interstitium and the fibrosis degree(P<0.05);decreased renal expressions of TGF-β,HIF-1α,α-SMA proteins and TGF-β mRNA(P<0.05);and increased expressions of IGF-1R mRNA and protein(P<0.05).However,the administration of JB1 could weaken the improvement effect of Heidihuang Pills on renal fibrosis in CRF rats(P<0.05).CONCLUSION Heidihuang Pills can inhibit the renal fibrosis in CRF rats,and the inhibition process is related to up-regulated IGF-1 expression and promoted combination of IGF-1 and IGF-1R.
10.Toxicokinetics of MDMA and Its Metabolite MDA in Rats
Wei-Guang YU ; Qiang HE ; Zheng-Di WANG ; Cheng-Jun TIAN ; Jin-Kai WANG ; Qian ZHENG ; Fei REN ; Chao ZHANG ; You-Mei WANG ; Peng XU ; Zhi-Wen WEI ; Ke-Ming YUN
Journal of Forensic Medicine 2024;40(1):37-42
Objective To investigate the toxicokinetic differences of 3,4-methylenedioxy-N-methylamphetamine(MDMA)and its metabolite 4,5-methylene dioxy amphetamine(MDA)in rats af-ter single and continuous administration of MDMA,providing reference data for the forensic identifica-tion of MDMA.Methods A total of 24 rats in the single administration group were randomly divided into 5,10 and 20 mg/kg experimental groups and the control group,with 6 rats in each group.The ex-perimental group was given intraperitoneal injection of MDMA,and the control group was given intraperi-toneal injection of the same volume of normal saline as the experimental group.The amount of 0.5 mL blood was collected from the medial canthus 5 min,30 min,1 h,1.5 h,2 h,4 h,6 h,8 h,10 h,12 h after administration.In the continuous administration group,24 rats were randomly divided into the experi-mental group(18 rats)and the control group(6 rats).The experimental group was given MDMA 7 d by continuous intraperitoneal injection in increments of 5,7,9,11,13,15,17 mg/kg per day,respectively,while the control group was given the same volume of normal saline as the experimental group by in-traperitoneal injection.On the eighth day,the experimental rats were randomly divided into 5,10 and 20 mg/kg dose groups,with 6 rats in each group.MDMA was injected intraperitoneally,and the con-trol group was injected intraperitoneally with the same volume of normal saline as the experimental group.On the eighth day,0.5 mL of blood was taken from the medial canthus 5 min,30 min,1 h,1.5 h,2 h,4 h,6 h,8 h,10 h,12 h after administration.Liquid chromatography-triple quadrupole tandem mass spectrometry was used to detect MDMA and MDA levels,and statistical software was employed for data analysis.Results In the single-administration group,peak concentrations of MDMA and MDA were reached at 5 min and 1 h after administration,respectively,with the largest detection time limit of 12 h.In the continuous administration group,peak concentrations were reached at 30 min and 1.5 h af-ter administration,respectively,with the largest detection time limit of 10 h.Nonlinear fitting equations for the concentration ratio of MDMA and MDA in plasma and administration time in the single-administration group and continuous administration group were as follows:T=10.362C-1.183,R2=0.974 6;T=7.397 3C-0.694,R2=0.961 5(T:injection time;C:concentration ratio of MDMA to MDA in plasma).Conclusions The toxicokinetic data of MDMA and its metabolite MDA in rats,obtained through single and continuous administration,including peak concentration,peak time,detection time limit,and the relationship between concentration ratio and administration time,provide a theoretical and data foundation for relevant forensic identification.

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