1.Epidemiological characteristics of herpes zoster outpatient cases in Jinshan District, Shanghai,2024
Jingjing WANG ; Jie ZHOU ; Miao MA ; Yueyue LIU ; Canlei SONG
Journal of Public Health and Preventive Medicine 2026;37(3):44-47
Objective To investigate the incidence and epidemiological characteristics of herpes zoster in Jinshan District, Shanghai, in 2024, and to provide a scientific basis for the development of prevention and control measures. Methods The visit information of herpes zoster cases in 2024 was collected through the outpatient diagnosis and treatment system of medical institutions in Jinshan District. Descriptive epidemiological methods were used for statistical analysis. Results In 2024, there were a total of 7 270 cases of herpes zoster in Jinshan District, including 3 398 male cases and 3 872 female cases. The incidence rate among females was higher than that among males (χ2 =125.25, P< 0.001). Cases occurred in all age groups, with an average age of 59.58 ± 15.28 years. The highest proportion of cases was in the 50-year-old group (21.99%) and the 60-year-old group (25.45%). The incidence rate increased with age (χ2 = 4 505.99, P< 0.001). The main departments for consultation were dermatology, pain clinics, and neurology. The main clinical diagnoses were herpes zoster without complications, postherpetic neuralgia, and incomplete herpes zoster. Among the cases, 3,102 patients had follow-up visits, and the number of follow-up visits increased with age. From 2020 to 2024, a total of 2,032 doses of herpes zoster vaccine were administered in the district, with the highest vaccination rate in the 50-year-old group (54.48%). Conclusion The majority of herpes zoster cases in Jinshan District are concentrated in the 50- and 60-year-old groups. The main complication is postherpetic neuralgia. The incidence rate and number of follow-up visits increase with age. The vaccination rate of herpes zoster vaccine in the entire district is relatively low. It is recommended to enhance monitoring and analysis, carry out health education for key populations (aged 50 years old and above), and promote vaccination and other preventive and control measures.
2.Electroacupuncture Ameliorates NLRP3-mediated Pyroptosis in Spinal Cord Injury Rats by Reshaping The Gut Microbiota
Yin-Jie CUI ; Hong-Ru LI ; Jing-Yi LIU ; Hai-Lin DU ; Shu-Wen LIU ; Yuan YANG ; Chen-Guang ZHENG ; Jian-Qin XIANG ; Xiao-Juan SONG
Progress in Biochemistry and Biophysics 2026;53(5):1132-1153
ObjectiveSpinal cord injury (SCI) directly impairs the regulatory function of the autonomic nervous system, induces intestinal dysfunction, and significantly reduces patients’ quality of life. Preclinical studies have shown that electroacupuncture (EA) therapy can regulate the brain-gut axis and is used to treat central nervous system diseases such as major depressive disorder, Alzheimer’s disease and Parkinson’s disease. Recent research has established that fecal microbiota transplantation (FMT) from EA-treated SCI rats restored intestinal motility and colonic morphology. However, it remains unclear whether the regulation of gut microbiota by EA therapy directly contributes to neural repair after SCI. This study aims to explore whether gut microbiota mediates the neuroprotective effect of EA in the treatment of SCI and its possible mechanism. MethodsThe study employed RNA transcriptome analysis of spinal cord tissue to characterize gene expression profiles and to identify key signaling pathways following EA treatment for SCI. Hematoxylin-Eosin (HE) staining and Nissl staining were used to observe the morphological changes in spinal cord tissue. Western blot (WB) and enzyme-linked immunosorbent assay (ELISA) were applied to detect the effects of EA on the expression of proteins related to nucleotide-binding domain leucine-rich repeat and pyrin domain-containing receptor 3 (NLRP3) -dependent pyroptosis. Using 16S rDNA sequencing, the study observed alterations in gut microbiota diversity and community composition in SCI rats. Prior to establishing SCI models, rats were pretreated with an antibiotic cocktail to induce gut dysbiosis, and the effects on intestinal function and spinal cord neural repair were evaluated. FMT was performed to investigate the regulatory effects of post-EA FMT on motor function, general status, liver and spleen indices, and NLRP3-mediated pyroptosis in SCI rats. ResultsEA improved motor function and reduced regulated neuronal cell death in SCI rats. Transcriptomic analysis demonstrated the activation of immune- and inflammation-related pathways post-SCI, including NOD-like receptors, nuclear factor-kappa B(NF-κB), and Toll-like receptor (TLR) pathways. EA primarily influenced intestinal inflammation and autoimmune functions. 16S rDNA sequencing illustrated that EA did not alter the diversity of gut microbiota. However, EA altered the gut microbiota composition in SCI rats, increasing Lactobacillus and Akkermansia genera while rebalancing the Firmicutes/Bacteroidetes ratio. Furthermore, depletion of gut microbiota by antibiotics disrupted the intestinal barrier, reduced the expression of intestinal barrier proteins Zonula Occludens-1 (ZO-1) and Occludin, elevated serum lipopolysaccharide-binding protein (LBP) levels, exacerbated spinal cord tissue damage, and hindered motor function recovery in SCI rats. FMT from donors treated with EA reduced LBP levels in the intestine, blood, and spinal cord of rats, inhibited the TLR4 myeloid differentiation primary response protein 88 (MyD88)-NF‑κB pathway and NLRP3-dependent pyroptosis, and improved motor function. On the other hand, FMT treatment resulted in decreased body weight and food intake, whereas FMT using EA-treated donors effectively alleviated these alterations. ConclusionEA effectively alleviated neuroinflammatory responses in rats with SCI, primarily through regulating the gut microbiota and suppressing the NLRP3-dependent pyroptosis signaling pathway.
3.Electroacupuncture Ameliorates NLRP3-mediated Pyroptosis in Spinal Cord Injury Rats by Reshaping The Gut Microbiota
Yin-Jie CUI ; Hong-Ru LI ; Jing-Yi LIU ; Hai-Lin DU ; Shu-Wen LIU ; Yuan YANG ; Chen-Guang ZHENG ; Jian-Qin XIANG ; Xiao-Juan SONG
Progress in Biochemistry and Biophysics 2026;53(5):1132-1153
ObjectiveSpinal cord injury (SCI) directly impairs the regulatory function of the autonomic nervous system, induces intestinal dysfunction, and significantly reduces patients’ quality of life. Preclinical studies have shown that electroacupuncture (EA) therapy can regulate the brain-gut axis and is used to treat central nervous system diseases such as major depressive disorder, Alzheimer’s disease and Parkinson’s disease. Recent research has established that fecal microbiota transplantation (FMT) from EA-treated SCI rats restored intestinal motility and colonic morphology. However, it remains unclear whether the regulation of gut microbiota by EA therapy directly contributes to neural repair after SCI. This study aims to explore whether gut microbiota mediates the neuroprotective effect of EA in the treatment of SCI and its possible mechanism. MethodsThe study employed RNA transcriptome analysis of spinal cord tissue to characterize gene expression profiles and to identify key signaling pathways following EA treatment for SCI. Hematoxylin-Eosin (HE) staining and Nissl staining were used to observe the morphological changes in spinal cord tissue. Western blot (WB) and enzyme-linked immunosorbent assay (ELISA) were applied to detect the effects of EA on the expression of proteins related to nucleotide-binding domain leucine-rich repeat and pyrin domain-containing receptor 3 (NLRP3) -dependent pyroptosis. Using 16S rDNA sequencing, the study observed alterations in gut microbiota diversity and community composition in SCI rats. Prior to establishing SCI models, rats were pretreated with an antibiotic cocktail to induce gut dysbiosis, and the effects on intestinal function and spinal cord neural repair were evaluated. FMT was performed to investigate the regulatory effects of post-EA FMT on motor function, general status, liver and spleen indices, and NLRP3-mediated pyroptosis in SCI rats. ResultsEA improved motor function and reduced regulated neuronal cell death in SCI rats. Transcriptomic analysis demonstrated the activation of immune- and inflammation-related pathways post-SCI, including NOD-like receptors, nuclear factor-kappa B(NF-κB), and Toll-like receptor (TLR) pathways. EA primarily influenced intestinal inflammation and autoimmune functions. 16S rDNA sequencing illustrated that EA did not alter the diversity of gut microbiota. However, EA altered the gut microbiota composition in SCI rats, increasing Lactobacillus and Akkermansia genera while rebalancing the Firmicutes/Bacteroidetes ratio. Furthermore, depletion of gut microbiota by antibiotics disrupted the intestinal barrier, reduced the expression of intestinal barrier proteins Zonula Occludens-1 (ZO-1) and Occludin, elevated serum lipopolysaccharide-binding protein (LBP) levels, exacerbated spinal cord tissue damage, and hindered motor function recovery in SCI rats. FMT from donors treated with EA reduced LBP levels in the intestine, blood, and spinal cord of rats, inhibited the TLR4 myeloid differentiation primary response protein 88 (MyD88)-NF‑κB pathway and NLRP3-dependent pyroptosis, and improved motor function. On the other hand, FMT treatment resulted in decreased body weight and food intake, whereas FMT using EA-treated donors effectively alleviated these alterations. ConclusionEA effectively alleviated neuroinflammatory responses in rats with SCI, primarily through regulating the gut microbiota and suppressing the NLRP3-dependent pyroptosis signaling pathway.
4.Establishment and application of the method for plasma concentration determination of lamotrigine,levetiracetam and perampanel in children with epilepsy
Wenlin SONG ; Ying ZHOU ; Haoran CHEN ; Ziyue LIN ; Yan LI ; Jie LIU ; Taiwei JIN ; Xuqiang ZHOU
China Pharmacy 2026;37(10):1313-1317
OBJECTIVE To establish a method for simultaneous determination of plasma concentration of lamotrigine(LTG), levetiracetam(LEV) and perampanel(PER) in children with epilepsy and apply this method in clinical practice. METHODS Plasma proteins were precipitated with acetonitrile. Using PER-D 5 as internal standard, ultra-high performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS) method was adopted. The determination was performed on ACQUITY UPLC HSS T3 C 18 column with mobile phase consisted of 0.1% formic acid with 5 mmol/L ammonium acetate-acetonitrile (gradient elution) at the flow rate of 0.3 mL/min. The column temperature was 40 ℃, and sample size was 5 μL. The analysis time was 5 min. The electrospray ionization source and multiple reaction monitoring mode were used for positive ion scanning. The ion pairs used for quantitative analysis of LTG, LEV, PER and internal standard were m / z 255.9→144.9, m / z 171.1→126.1, m / z 350.1→219.0 and m / z 354.9→220.2, respectively. The steady-state trough concentrations of the aforementioned drugs in the plasma of 14 pediatric epilepsy patients receiving combination therapy were determined using the same UPLC-MS/MS method as above. RESULTS The linear ranges of LTG, LEV and PER were 0.15-24 μg/mL ( R 2 >0.993), 0.312 5-50 μg/mL ( R 2 >0.997) and 6.25-1 000 ng/mL ( R 2 >0.997), respectively. The lower limits of quantification were 0.15 μg/mL, 0.312 5 μg/mL and 6.25 ng/mL, respectively. RSDs of intraday and interday precision tests of the three drugs were no more than 9.83%, and the accuracies (relative errors) were between -9.33% and 13.72%( n =6 or n =18); the average extraction recovery rates were 86.4%-97.9%, and the average matrix effects were 86.9%-110.0% ( n =6). The absolute values of the relative errors in the stability tests were all below 15%. The steady-state trough concentrations of LTG, LEV and PER were (5.64±4.03)μg/mL, (10.67±8.78)μg/mL and(450.20±251.27)ng/mL, respectively; the rates of achieving target trough concentrations were 71.4%, 37.5% and 84.6%, respectively. CONCLUSIONS The established UPLC-MS/MS method is specific, rapid and suitable for the plasma concentration monitoring in epileptic children receiving combination therapy.
5.Traditional Chinese Medicine Regulates AMPK Signaling Pathway to Prevent and Treat Non-alcoholic Fatty Liver Disease: A Review
Lijuan DAN ; Shuanglan CHEN ; Tianyuan WANG ; Xiaojie YOU ; Xiuyan LI ; Hongfei SONG ; Dong WANG ; Jie MU ; Qiao LI
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(14):133-143
Non-alcoholic fatty liver disease (NAFLD) is one of the most prevalent forms of liver diseases globally. Its progression can lead to cirrhosis and end-stage liver disease, and there is currently a lack of effective pharmacological treatments. Adenosine monophosphate-activated protein kinase (AMPK), as a regulatory hub for maintaining cellular energy homeostasis, can coordinate key cellular processes such as adipogenesis, glucose metabolism, and mitochondrial functions. Its activation exerts metabolic regulatory effects through pathways including inhibiting lipogenesis, enhancing mitochondrial β-oxidation, regulating inflammation and oxidative stress, and promoting autophagy. Accordingly, AMPK emerges as a potential target for the prevention and treatment of NAFLD. Traditional Chinese Medicine (TCM), with low toxicity, high accessibility, and multi-component, multi-target synergistic effects, has demonstrated unique value in NAFLD treatment, particularly showing notable advantages in regulating the AMPK signaling pathway. Sichuan is known as the treasure house of TCM, and the active components of its authentic medicinal materials such as Coptidis Rhizoma not only reflect regional characteristics in AMPK signaling regulation but also form a multi-level metabolic regulatory network through crosstalk with pathways such as sirtuin 1 (SIRT1) and peroxisome proliferator-activated receptor α (PPARα). They can achieve specific regulation by directly activating AMPK and modulating upstream and downstream targets, exerting prominent effects in ameliorating hepatic steatosis and inflammation. This study systematically reviews the research findings on TCM for the prevention and treatment of NAFLD over the past five years, elaborating the mechanisms by which TCM treats NAFLD through regulating the AMPK signaling pathway. It aims to provide new perspectives and references for clinical diagnosis and treatment, basic research, and drug development.
6.Constructing a rat animal model of pelvic organ prolapse:a comparison of three modeling methods
Jing YANG ; Houmei WANG ; Yi WANG ; Min SONG ; Jie REN ; Lujun DAI ; Ziwen XIAO
Chinese Journal of Tissue Engineering Research 2026;30(4):864-872
BACKGROUND:Currently,there are many modeling methods for pelvic organ prolapse animal models,and the commonly used methods are vaginal balloon dilatation,oophorectomy and the combination of the two.There is no study comparing the three modeling methods in detail.OBJECTIVE:To construct and validate a rat animal model of pelvic organ prolapse using three different methods and to identify the advantages and disadvantages of various models.METHODS:Seventy-two 8-week SPF-grade female Sprague-Dawley rats were selected and randomly divided into four groups,namely,vaginal balloon dilatation group,ovariectomy group,ovariectomy combined with vaginal balloon dilatation group(the combined group),and the sham-operated group(no ovariectomy and no vaginal dilatation).The vaginal wall tissues of rats were collected at 4,8 and 12 weeks after the operation for hematoxylin-eosin staining,Masson staining,EVG staining and immunohistochemical staining of α-smooth muscle actin,Vimentin and matrix metalloproteinase 9 detection,and the pelvic floor muscle tissues were taken at 4,8 and 12 weeks after the operation for hematoxylin-eosin staining,Masson staining and EVG staining.RESULTS AND CONCLUSION:(1)Hematoxylin-eosi staining showed that there was no significant difference in the decrease of vaginal epithelial layer thickness in the vaginal balloon dilatation group compared with the sham-operated group,(P>0.05),while the thickness of the vaginal epithelial layer was significantly reduced in the ovariectomy group and the ovariectomy combined with vaginal balloon dilation group(P<0.001),and the reduction was more significant in the ovariectomy combined with vaginal balloon dilation group,remained stable at 8 weeks after surgery and lasted until 12 weeks.(2)The changes in the content of collagen fibers and elastic fibers in the vaginal wall stained by Masson and EVG staining were the same as the changes in the thickness of the vaginal epithelial layer stained by hematoxylin-eosin,and there were no changes in collagen fibers and elastic fibers in the pelvic floor muscle tissues of the treatment groups.(3)At 4,8 and 12 weeks after treatment,there was no significant difference in the expression levels of α-smooth muscle actin,Vimentin and matrix metalloproteinase 9 in the vaginal wall tissue of the balloon dilation group compared with the control group(P>0.05),whereas the expression levels of α-smooth muscle actin and Vimentin were significantly decreased in the ovariectomy group and ovariectomy combined with vaginal balloon dilation group(P<0.01)and the expression of matrix metalloproteinase 9 showed a significant increase(P<0.01),with a more pronounced increase in the ovariectomy combined with vaginal balloon dilation group,and the increase reached a stable state at 8 weeks after surgery and could persist up to 12 weeks.To conclude,vaginal balloon dilatation could not maintain the degeneration of pelvic organ prolapse formed by the vaginal wall for a long period,and both ovariectomy and the combined method can be used.Ovariectomy combined with vaginal balloon dilatation can significantly accelerate and aggravate the formation of typical histological features of pelvic organ prolapse in vaginal wall tissues,effectively shorten the experimental period,and improve the efficiency.These effects reach a stable state at 8 weeks after surgery and can be sustained up to 12 weeks,which is practical and convenient for the study of pelvic organ prolapse animal models.
7.Exploring Mechanism of Chaihu Jia Longgu Mulitang in Depressive-like Rats via AMPK/SIRT1/NF-κB/NLRP3 Signaling Pathway
Guang WANG ; Xinhua SONG ; Jie YANG ; Jinyao XU ; Junhua MEI ; Chao CHEN ; Guohua CHEN
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(11):144-152
ObjectiveTo investigate the effects of Chaihu Jia Longgu Mulitang(CJLM) on depression-like behaviors and neuroinflammation in rats subjected to social isolation combined with chronic unpredictable mild stress(CUMS), and to explore the potential underlying mechanisms. MethodsSixty male SD rats were randomly divided into a normal group, a model group, and low-, medium-, and high-dose CJLM groups(2.89, 5.78, 11.56 g·kg-1), as well as a fluoxetine group(10 mg·kg-1). Except for the normal group, all other groups were subjected to social isolation combined with CUMS for 63 d. During the first 35 d, depression models were established only, and from day 36 onward, modeling and drug administration were conducted simultaneously for a total intervention period of 28 d. Depression-like behaviors were evaluated using the sucrose preference test, open-field test, and forced swimming test. Hematoxylin-eosin(HE) staining was performed to observe hippocampal histomorphology. Immunohistochemistry(IHC) was used to detect the expression levels of ionized calcium-binding adapter molecule 1(Iba1) and gasdermin D(GSDMD) proteins in the hippocampus. Western blot analysis was employed to determine the protein expression levels of adenosine 5′-monophosphate(AMP)-activated protein kinase(AMPK) and phosphorylated(p)-AMPK, silent information regulator 1(SIRT1), nuclear factor-κB(NF-κB) and p-NF-κB, NOD-like receptor protein 3(NLRP3), and Caspase-1 in the hippocampus. Real-time quantitative polymerase chain reaction(Real-time PCR) was used to detect the mRNA expression levels of tumor necrosis factor-α(TNF-α), interleukin(IL)-6, and IL-1β in the hippocampus. ResultsCompared with the normal group, the model group showed a decreased sucrose preference rate(P<0.01), reduced total movement distance(P<0.01), prolonged immobility time(P<0.01), and decreased central zone residence time(P<0.01) in the open-field test, and increased immobility time in the forced swimming test(P<0.01). Hippocampal neuronal structure was damaged. The contents of Iba1 and GSDMD in the hippocampus were significantly increased(P<0.01). The protein expression levels of p-AMPK and SIRT1 in the hippocampus were significantly decreased(P<0.01), whereas the protein expression levels of p-NF-κB, NLRP3, and Caspase-1 were significantly increased(P<0.01). The mRNA expression levels of IL-1β, IL-6, and TNF-α in the hippocampus were significantly upregulated(P<0.01). Compared with the model group, the low-, medium-, and high-dose CJLM groups and the fluoxetine group all were able to reverse depression-like behavioral changes, as evidenced by increased sucrose preference rate, increased total movement distance with shortened immobility time in the open-field test, prolonged central zone residence time, and reduced immobility time in the forced swimming test(P<0.05, P<0.01). Meanwhile, hippocampal neuronal structural damage was alleviated. In the hippocampus, the expression levels of Iba1 and GSDMD were downregulated, the expression levels of p-AMPK and SIRT1 were upregulated, and the abnormal elevations of p-NF-κB, NLRP3, Caspase-1, as well as IL-1β, IL-6, and TNF-α mRNA were suppressed(P<0.05, P<0.01). ConclusionCJLM can ameliorate depression-like behaviors in rats subjected to social isolation combined with CUMS and attenuate hippocampal neuroinflammation and pyroptosis, suggesting that its effects may be associated with the regulation of AMPK/SIRT1/NF-κB/NLRP3 signaling pathway.
8.Correlation of social anxiety and emotion regulation strategy with short video addiction in college students
WANG Wenting, ZHANG Zhonglou, SONG Jinqiu, XU Haipeng, RUAN Jie
Chinese Journal of School Health 2026;47(4):548-552
Objective:
To explore the relationship of social anxiety and emotion regulation strategy with short video addiction among college students, so as to provide reference for alleviating social anxiety, improving the level of emotion regulation and preventing short video addiction.
Methods:
From May to June 2024, 2 172 college students from a university in Guangzhou were selected by multistage random cluster sampling method. The Interaction Anxiousness Scale, Emotion Regulation Questionnaire and Short Video Addiction Scale were used as the measurement tools. The potential profile was used to analyze the potential categories of social anxiety and emotion regulation strategy. The Chi square test was used to analyze the characteristics of the distribution of potential profile categories of college students with different demographic characteristics. Multiple linear regression analysis was used to analyze the relationship between social anxiety, emotion regulation strategy and short video addiction.
Results:
The potential categories of social anxiety and emotion regulation strategy in college students were divided into adaptive regulation type (784 cases, 36.10 %), low anxiety-expression type (623 cases, 28.68%), inhibition-anxiety type (478 cases, 22.01%), high anxiety-disorder type (287 cases, 13.21%). There were statistically significant differences in the distribution of various potential categories of social anxiety and emotion regulation strategy among cadres of different gender, family residence, class cadres or not ( χ 2=42.55, 17.86 , 39.05, all P <0.01). Multiple linear regression analysis showed that after controlling the confounding factors such as demographic variables, the potential categories of social anxiety and emotion regulation strategy of college students (low anxiety-expression type, inhibition-anxiety type, high anxiety-disorder type) were the important related factors of short video addiction ( β =0.15,0.25,0.35, all P <0.05).
Conclusions
Social anxiety and emotion regulation strategy of college students exhibit distinct categorical characteristics, and its varying latent categories are associated with short video addiction. Schools should implement targeted intervention measures for different categories of college students to promote their comprehensive mental health development.
9.Effects of prostaglandin E2 injection into the median preoptic nucleus on body temperature in female mice and its mechanisms
Ya LI ; Yi’an SONG ; Qiaofeng JI ; Lei XU ; Jie ZHANG ; Jianhui XU ; Xiaoyu HOU
Acta Universitatis Medicinalis Anhui 2026;61(2):250-257
ObjectiveTo investigate the effects of prostaglandin E2 (PGE2) microinjection into the median preoptic nucleus (MnPO) on core body temperature in female mice, and to clarify its underlying mechanism. MethodsMicroinjection cannula were implanted into the MnPO of female mice using stereotaxic surgery.Subsequently, a multi-channel temperature acquisition system was used to simultaneously monitor rectal and brown adipose tissue (BAT) temperatures before and after intra-MnPO injections of different reagents.To investigate the thermoregulatory effects of the microinjection of PGE2 into the MnPO, 12 female C57BL/6 mice were randomly divided into a saline group (n=6) and a PGE2 group (n=6), which were injected with 0.1 μL saline and PGE2 (2.8 mmol/L), respectively.To determine whether E-series prostaglandin receptor (EP)1, EP3, and EP4 receptors mediate the thermoregulatory effects of PGE2, 15 female C57BL/6 mice were randomly divided into 3 groups (n=5 per group).Mice in each group first received an injection of 0.1 μL PGE2 (2.8 mmol/L) into the MnPO. After their body temperature returned to baseline levels, they were subsequently injected with a mixture of either EP1, EP3 or EP4 antagonist (ant) (20 mmol/L) + PGE2 (2.8 mmol/L). ResultsCompared with baseline level, the rectal temperature (P<0.01) and BAT temperature (P<0.001) of female mice both increased significantly after microinjection of PGE2 into the MnPO.Compared with the saline group, the increases in rectal temperature (P<0.001) and BAT temperature (P<0.000 1) were significantly greater in the PGE2 group of mice.Furthermore, following the injection of PGE2 into MnPO, the increase in BAT temperature was found to be significantly greater than that in rectal temperature in mice (P<0.001).Compared to the administration of PGE2 alone, co-injection of an EP3 ant + PGE2 into the MnPO of mice resulted in a significantly smaller increase in both rectal temperature (P<0.001) and BAT temperature (P<0.001).In contrast, the increases in rectal and BAT temperatures following MnPO injection of either EP1 ant + PGE2 or EP4 ant + PGE2 were not statistically significant (P>0.05). ConclusionInjection of PGE2 into the MnPO elevates BAT and core body temperature in female mice via the EP3 receptor.
10.Variations of Chemical Components in Gardeniae Fructus Before and After Being Charred Analyzed by UPLC-Q-Orbitrap MS/MS
Lan LI ; Jie HONG ; Yanan SONG ; Yilan LI ; Yun WANG ; Cun ZHANG
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(4):175-182
ObjectiveTo investigate the changes in chemical components of Gardeniae Fructus(GF) before and after being charred, providing data support for research on the material basis of GF Carbonisata(GFC). MethodsUltra-performance liquid chromatography-quadrupole-electrostatic field orbitrap high-resolution mass spectrometry(UPLC-Q-Orbitrap MS/MS) was used to conduct a comprehensive analysis of the chemical components in GF and GFC under positive and negative ion modes with Compound Discoverer 3.3 software and online database. Then, principal component analysis and partial least squares-discriminant analysis in SIMCA14.1 software were used to analyze the MS data of each sample. Based on the principle of variable importance in the projection(VIP) value>1, differential secondary and primary metabolites before and after carbonization were screened. In addition, MetaboAnalyst website was used for pathway enrichment of Kyoto Encyclopedia of Genes and Genomes(KEGG), so as to provide a reference for clarifying the processing mechanism. ResultsA total of 185 components were identified, including 96 secondary metabolites and 89 primary metabolites. These components were classified into nine categories, primarily including iridoid glycosides, flavonoids, and terpenoids, their fragmentation pathways were also analyzed. Simultaneously, multivariate statistical analysis was performed on the secondary and primary metabolites, identifying 70 and 59 differential metabolites, respectively. The secondary metabolites were enriched in two metabolic pathways, including C5-branched dibasic acid metabolism and flavonoid and flavonol biosynthesis, while the primary differential metabolites were enriched in seven pathways such as linoleic acid metabolism and tyrosine metabolism. ConclusionThe chemical components of GF change significantly after carbonization, with a significant decrease in the contents of iridoid glycosides and terpenoids such as hydroxyisogeniposide, crocin Ⅱ, crocetin, and jasminoside B. while the contents of 4-hydroxycoumarin, geniposidic acid, gentiopicroside, and gardenoside methyl ester increase significantly. This change is presumed to be associated with the enhanced cooling and hemostatic effects of the processed products. The identified key components provide a basis for elucidating the material basis underlying the efficacy changes before and after carbonization.


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