1.Intervention of Exercise Combined with Shenghui Tang in M1AChR Regulation of Mitochondrial Autophagy Improves Learning and Memory Ability of Alzheimer's Disease Model Rats
Xiaoxue TAO ; Min XIAO ; Kunyang TANG ; Bo WANG ; Chunchun ZHAO ; Rongxiang LIANG
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(1):120-130
ObjectiveTo make clear exercise combined with Shenghui Tang interferes in acetylcholine receptor (M1AChR) to improve mitochondrial autophagy and enhance cognition of Alzheimer's disease (AD) model rats through the adenylate activated protein kinase (AMPK)/mammalian target of rapamycin (mTOR) signaling pathway. MethodsForty-eight male SD rats of SPF grade were randomly divided into a blank group, a model group, a Shenghui Tang group (9.3 g·kg-1), an exercise group, an exercise + Shenghui Tang group (9.3 g·kg-1), and a rapamycin group (1.5 mg·kg-1). Except for the blank group, the rat model of AD was constructed by injecting amyloid beta (Aβ1-42) into hippocampus stereotaxically. The exercise group received treadmill exercise for 4 weeks, while the Shenghui Tang group received intragastric administration for 4 weeks, and the exercise + Shenghui Tang group received treadmill exercise and intragastric administration of Shenghui Tang for 4 weeks simultaneously. After the intervention, the Morris water maze test was used to detect the learning and memory ability. Spontaneous behavior was observed in the open field test. The pathological structure of hippocampal neurons was observed by NISSl staining. The expression level of M1AChR in hippocampus was detected by immunohistochemistry (IHC). The autophagy ultrastructure of hippocampal neurons was observed by transmission electron microscopy. The apoptosis rate was evaluated by terminal deoxynucleotidyl transferase dUTP nick end labeling (TUNEL). The expression of Beclin1 and microtubule-associated protein light chain 3β (LC3β) was detected by immunofluorescence (IF). The protein expression of M1AChR, AMPK, p-AMPK, mTOR, Beclin1, LC3β, and chelate 1 (SQSTM1/p62) in hippocampus was detected by Western blot. ResultsCompared with the blank group, the model group exhibited significantly increased platform escape latency on the fifth day (P<0.01) and significantly decreased activity distance in the target quadrant and times of crossing the platform (P<0.01). The total movement distance in the open field, the time of movement in the central area, and the average speed obviously decreased (P<0.05). The arrangement of nerve cells in hippocampus CA1 region was dispersed, and the numbers of Nissl bodies and M1AChR positive cells significantly decreased (P<0.01). The expression of TUNEL positive cells was significantly increased (P<0.01). The typical autophagic lysosomal structure decreased. The protein expression of M1AChR, p-AMPK/AMPK, p-mTOR/mTOR, Beclin1, LC3Ⅱ/Ⅰ in hippocampus was significantly decreased (P<0.01), and the protein expression of p62 was significantly increased (P<0.01). Compared with the model group, the exercise + Shenghui Tang group exhibited obviously improved space exploration and positioning navigation ability (P<0.05, P<0.01). The total movement distance in the open field, the time of movement in the central area, and the average speed of movement significantly increased (P<0.01). The number of Nissl bodies significantly increased (P<0.01). The number of M1AChR positive cells in hippocampus was significantly increased (P<0.01). The expression of TUNEL positive cells was significantly decreased (P<0.01). The protein expression of M1AChR, p-AMPK/AMPK, p-mTOR/mTOR, Beclin1, LC3Ⅱ/Ⅰ in hippocampus was significantly increased (P<0.01), while the protein expression of p62 was significantly decreased (P<0.01). Compared with the exercise + Shenghui Tang group, the Shenghui Tang group and the exercise group showed significantly increased platform escape latency on the fifth day (P<0.01) and obviously decreased activity distance in the target quadrant and times of crossing the platform (P<0.05, P<0.01). The total movement distance in the open field, the time of movement in the central area, and the average speed of movement significantly decreased (P<0.01). The number of Nissl bodies and the number of M1AChR positive cells significantly decreased (P<0.01). The expression of TUNEL positive cells was obviously increased (P<0.05). Ultrastructure of the hippocampal region showed decreased autophagy level. The protein expression of M1AChR, p-AMPK/AMPK, p-mTOR/mTOR, LC3Ⅱ/Ⅰ in the hippocampus was obviously decreased in the Shenghui Tang group (P<0.05, P<0.01), while the protein expression of p62 was significantly increased (P<0.01). In the exercise group, the protein expression of M1AChR, p-AMPK/AMPK, Beclin1, and LC3Ⅱ/Ⅰ was obviously decreased (P<0.05, P<0.01), while the protein expression of p-mTOR/mTOR and p62 was significantly increased (P<0.01). ConclusionExercise combined with traditional Chinese medicine can enhance the expression of M1AChR in the hippocampus of AD model rats, induce autophagy through the AMPK/mTOR signaling pathway, and improve the learning and memory ability of AD rats.
2.Pharmacological Review, Challenges, and Future Prospects of Zhusha Anshenwan
Xiaosong HU ; Zhou LAN ; Ping WANG ; Li DING ; Chun GUI
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(9):329-335
Zhusha Anshenwan is a classical traditional Chinese medicine (TCM) formula originating from LI Dongyuan's Treatise on the Differentiation of Endogenous and Exogenous Injuries (Nei Wai Shang Bian Huo Lun) of the Jin-Yuan period. It is composed of five medicinal ingredients: Cinnabaris (Zhusha), Coptidis Rhizoma (Huanglian), Angelicae Sinensis Radix (Danggui), Rehmanniae Radix (Shengdihuang), and Glycyrrhizae Radix et Rhizoma (Gancao). Under the guidance of TCM theory, this formula is used to treat syndromes of disturbed spirit, including insomnia, palpitations, and anxiety, caused by hyperactivity of heart fire and deficiency of Yin-blood, and it also exerts auxiliary anticonvulsant effects in epilepsy and related conditions. However, the potential neurotoxicity, hepatotoxicity, and nephrotoxicity of its monarch drug, Cinnabaris (mainly composed of mercuric sulfide, HgS), together with the risk of in vivo accumulation, have rendered its clinical application controversial, and it has not yet been formally included in the Pharmacopoeia of the People's Republic of China. In addition, restrictions imposed by the Minamata Convention on Mercury have led to an increasing shortage of natural medicinal Cinnabaris resources, making the evaluation of the efficacy and safety of synthetic Cinnabaris particularly urgent. This contradiction highlights the complexity of safety evaluation for traditional medicines. Existing studies indicate that Zhusha Anshenwan exhibits definite pharmacological activities in calming the mind, improving sleep, and regulating emotional disorders. Moreover, other components of the formula may exert antagonistic effects on the toxicity of Cinnabaris, and reports of severe mercury poisoning caused by standardized clinical use of this prescription are extremely rare. Research suggests that other ingredients in the compound formula, such as Rehmanniae Radix, Coptidis Rhizoma, and Glycyrrhizae Radix et Rhizoma, may effectively alleviate the hepatorenal toxicity of Cinnabaris through mechanisms including modulation of the gut microbiota, formation of mercury complexes, and direct protection of target organs. This article aims to systematically review the progress in pharmacodynamic research on Zhusha Anshenwan, to explore its mechanisms of action in depth, and to analyze the toxicokinetic characteristics and safety risks of Cinnabaris, as well as the scientific connotations of toxicity reduction and efficacy enhancement achieved through compound compatibility. In addition, it compares Zhusha Anshenwan with other commonly used sedative formulas, with the aim of providing a scientific basis and forward-looking perspectives for the safe and rational application and in-depth development of this classical prescription in a modern context, and of emphasizing the important value of holistic research on TCM compound formulas in addressing the challenges of single-component toxicity.
3.Evaluation of the quality of Jingangteng capsules based on UPLC fingerprinting combined with multi-component content determination
Li SHEN ; Yue SHEN ; Yuying YANG ; Dandan ZHANG ; Yuxi WU ; Xuxiang ZHOU ; Jingyu YANG ; Peng HU ; Lei WANG ; Heming WU ; Dan LIU ; Xiaochuan YE
China Pharmacy 2026;37(10):1290-1294
OBJECTIVE To establish the UPLC fingerprint and the method for multi-component content determination in Jingangteng capsules, and to evaluate its quality by combining chemical pattern recognition analysis. METHODS An UPLC method was established. Separation was performed on a Zorbax SB-C 18 Rapid Resolution HD column, with acetonitrile-0.1% formic acid as the mobile phase for gradient elution.Using the Similarity Evaluation System for Chromatographic Fingerprints of Traditional Chinese Medicines (2012 edition), UPLC fi ngerprints were established for 10 batches of Jingangteng capsules, and similarity was evaluated. SPSS 22.0 and SIMCA 14.1 software were used to perform hierarchial-cluster analysis and orthogonal partial least squares discriminant analysis (OPLS-DA), respectively. The same UPLC method was employed to determine the contents of chlorogenic acid, 3,5-dihydroxy-2-methylbenzoic acid-3- O -glucoside (M1), caffeic acid, astilbin, oxyresveratrol, quercitrin and resveratrol in the 10 batches of samples. RESULTS A total of 17 common peaks were identified in UPLC fingerprints of the 10 batches of samples, of which 7 were identified as chlorogenic acid, M1, caffeic acid, astilbin, oxyresveratrol, quercitrin, and resveratrol. The similarities of 10 batches of samples ranged from 0.820 to 0.985. The results of hierarchial-cluster analysis showed that 10 batches of samples were grouped into four categories: S1-S4 formed one group, S5 and S6 formed another, S7, S8 and S10 formed a third, and S9 formed a fourth, consistent with the OPLS-DA results; the variable importance projection values for peaks 7, 10, 2, 16 (resveratrol), 13 (oxyresveratrol), 11, 6 (caffeic acid), 5 (M1) and 15 (quercitrin) were >1. Quantitative analysis results showed that the contents of chlorogenic acid, M1, caffeic acid, astilbin, oxyresveratrol, quercitrin, and resveratrol were 1.650 8-4.213 7, 0.636 2-2.161 7, 0.031 0-0.086 5, 0.239 1-1.069 3, 0.211 9-1.104 0, 0.488 8-2.399 2, and 0.164 0-0.699 8 mg/g, respectively. CONCLUSIONS UPLC fingerprint and content determination methods established in this study are simple to operate, accurate, reliable and reproducible; when combined with chemical pattern recognition analysis, they can be used to evaluate the quality of Jingangteng capsules. Nine components, such as resveratrol, oxyresveratrol, caffeic acid, M1 and quercitrin, may serve as markers of quality variation.
4.Analysis of the Theory of "Spirit Turns but Does Not Reverse;If It Reverses,It Ceases to Turn" in The Inner Canon of Yellow Emperor (《黄帝内经》) and Its Clinical Significance
Bin PENG ; Wenyi LUO ; Bing LI ; Shengxing WANG ; Ziling ZENG ; Lin TONG ; Huamin ZHANG
Journal of Traditional Chinese Medicine 2026;67(19):2139-2143
"Spirit turns but does not reverse; if it reverses, it ceases to turn" originates from the Plain Questions: Discussion on Essential Jade Plates (《素问·玉版论要篇》). It profoundly summarizes the objectivity of life as a phenomenon subject to the laws of the universe and nature, while also expressing the subjectivity of individuals possessing systematic, stable, and ordered biological rhythms. In light of relevant ancient philosophical insights, the theory of "spirit turns but does not reverse; if it reverses, it ceases to turn" embodies the principles of constant motion in life, change according to dao (道), orderly progression, and the rule that reversal disrupts continuity. In clinical diagnosis and treatment, one should adopt the therapeutic principle of regulating spirit to promote "spirit turning". Guiding along the trend and acting in accordance with the natural momentum must be adopted to maintain the operation of spirit turning. Adhering to constancy while recognizing variability, and prioritizing harmony above all, should be employed to ensure the orderly progress of spirit turning. Regulating qi movement serves as the driving force behind facilitating spirit turning. This will provide clinical insights and theoretical foundations for treating diseases through the concept of "regulating spirit".
5.Mining of risk signals for antihypertensive drug-related erectile dysfunction
Shi LIU ; Peng YANG ; Yue GAO ; Yu WANG ; Shenrong GAO ; Jinsong YAN
China Pharmacy 2026;37(18):2389-2394
OBJECTIVE To mine the risk signals associated with erectile dysfunction (ED) related to antihypertensive drugs based on real-world data, and to provide a reference for the safe clinical use and risk monitoring of these drugs.METHODS Reports of ED associated with 15 target antihypertensive drugs were extracted from the US FDA Adverse Event Reporting System (FAERS) database, covering the period from the first quarter of 2004 to the first quarter of 2026. Three proportional disproportionality measures (reporting odds ratio, proportional reporting ratio, and empirical Bayesian geometric mean) were used to mine the risk signals for ED associated with various antihypertensive drugs, and stratified analyses were performed based on patient age and body weight.RESULTS A total of 997 ED reports associated with 15 antihypertensive drugs were included. The majority were male patients (931 reports), with age concentrated in the 18 to <65 years group (511 reports), body weight in the 50 to <100 kg group (366 reports), and reporters predominantly consumers/patients (497 reports). The top three drugs by number of reports were amlodipine (413 reports), metoprolol (133 reports), and valsartan (82 reports); the overall demographic distribution characteristics of reports associated with each drug were similar. Positive signals were detected for 8 drugs, including amlodipine and metoprolol. ED associated with atenolol, candesartan, metoprolol, hydrochlorothiazide, and losartan mostly occurred within 30 days after medication; ED associated with valsartan and perindopril mostly occurred over 360 days after medication; and the onset time of amlodipine-associated ED was evenly distributed across all time periods. There were a total of 835 serious reports, with calcium channel blockers (CCBs) accounting for the highest proportion (44.0%) and angiotensin-converting enzyme inhibitors for the lowest (3.7%). The intensity of risk signals for amlodipine-associated ED increased with advancing age and higher body weight, while the signals for metoprolol were most pronounced in individuals aged 45 to <60 years and weighing≥100 kg; positive signals for valsartan were observed only in individuals aged≥60 years and those weighing 50 to <75 kg or ≥100 kg.CONCLUSIONS Reports of ED associated with antihypertensive drugs exhibit significant heterogeneity across drug types and differences in the distribution of onset times; CCBs have the highest proportion of serious reports; and the relationship between ED risk signals associated with amlodipine, metoprolol, and valsartan and age and body weight also shows marked heterogeneity.
6.Analysis of the Theory of "Spirit Turns but Does Not Reverse;If It Reverses,It Ceases to Turn" in The Inner Canon of Yellow Emperor (《黄帝内经》) and Its Clinical Significance
Bin PENG ; Wenyi LUO ; Bing LI ; Shengxing WANG ; Ziling ZENG ; Lin TONG ; Huamin ZHANG
Journal of Traditional Chinese Medicine 2026;67(19):2139-2143
"Spirit turns but does not reverse; if it reverses, it ceases to turn" originates from the Plain Questions: Discussion on Essential Jade Plates (《素问·玉版论要篇》). It profoundly summarizes the objectivity of life as a phenomenon subject to the laws of the universe and nature, while also expressing the subjectivity of individuals possessing systematic, stable, and ordered biological rhythms. In light of relevant ancient philosophical insights, the theory of "spirit turns but does not reverse; if it reverses, it ceases to turn" embodies the principles of constant motion in life, change according to dao (道), orderly progression, and the rule that reversal disrupts continuity. In clinical diagnosis and treatment, one should adopt the therapeutic principle of regulating spirit to promote "spirit turning". Guiding along the trend and acting in accordance with the natural momentum must be adopted to maintain the operation of spirit turning. Adhering to constancy while recognizing variability, and prioritizing harmony above all, should be employed to ensure the orderly progress of spirit turning. Regulating qi movement serves as the driving force behind facilitating spirit turning. This will provide clinical insights and theoretical foundations for treating diseases through the concept of "regulating spirit".
7.Gantou Fumu Decoction Inhibits Hepatic Stellate Cell Activation by Regulating Nrf2/ARE Signaling Pathway
Wangsheng HE ; Yanping ZHU ; Shizhen LONG ; Mengmeng LI ; Wenming YANG ; Han WANG ; Meixia WANG ; Ting DONG ; Shupei JIA
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(23):105-115
ObjectiveTo explore the mechanism through which Gantou Fumu decoction (GDFMT)-containing serum inhibits the activation of hepatic stellate cells. MethodsSerum pharmacology techniques were employed to prepare GDFMT-containing serum samples. Rat hepatic stellate cells (HSCT6) were randomly allocated into three groups: Control, penicillamine (90 mg·kg-1), and GDFMT (6.8 g·kg-1). Cell viability was assessed by the cell counting kti-8 (CCK-8) assay, intracellular ROS levels were determined by flow cytometry using the DCFH‑DA fluorescent probe and while extracellular collagen Ⅰ (ColⅠ) levels were quantified via enzyme linked immunosorbent assay (ELISA). Intracellular α-smooth muscle actin (α-SMA) expression was visualized through immunofluorescence staining. Real-time polymerase chain reaction(Real-time PCR) and Western blot were performed to evaluate alterations in the expression of nuclear factor-erythroid 2-related factor 2 (Nrf2), glutamate cysteine ligase, catalytic (GCLC), glutamate-cysteine ligase, modifier subunit (GCLM), Kelch-like ECH-associated protein 1 (Keap1), NAD(P)H:Quinone oxidoreductase 1 (NQO1), and heme oxygenase-1 (HO-1). Genetic knockdown of Nrf2 was achieved through small interfering (siRNA) transfection to validate pathway specificity. ResultsCCK-8 data indicated that under the selected experimental conditions, culturing HSCT6 cells with 10% (volume fraction) GDFMT-containing serum for 48 h demonstrated equivalent effect in inhibiting HSCT6 cell proliferation compared with culturing HSCT6 cells with 10% (volume fraction) penicillamine-containing serum for 36 h, with no statistically significant difference between the two groups. After treatment of HSCT6 cells with siRNA-mediated Nrf2 gene transfection technique, the inhibitory effect of GDFMT on the activation process of HSCT6 cells was significantly weakened. After HSCT6 cells were cultured with GDFMT-containing serum for 48 h, the flow cytometry with a fluorescence probe showed that the content of reactive oxygen species (ROS) in the cells was significantly reduced. After the expression level of the Nrf2 gene in HSCT6 cells was knocked down by siRNA transfection, the content of ROS increased (P<0.01), indicating that GDFMT significantly reduced the ROS level in activated HSCT6 cells, and this effect strictly depended on the integrity of the Nrf2 pathway. Quantitative analysis by ELISA showed that the synthesis of ColⅠ in the HSCT6 cell culture system treated with GDFMT-containing serum for 48 h was lower than that in the control group (P<0.01). After the Nrf2 gene level of HSCT6 cells was knocked down by siRNA transfection, the ColⅠ concentration in the culture supernatant increased (P<0.01). The results of α-SMA detection by IF method showed that compared with the normal group, GDFMT-containing serum reduced the expression of α-SMA (P<0.01) and the protein level of α-SMA in HSCT6 cells was increased (P<0.01) after siRNA-mediated Nrf2 silencing, suggesting that Nrf2 signaling pathway may be involved in regulating the phenotypic transformation process of the cells. Real-time PCR and Western blot results showed that GDFMT-containing serum reduced the protein level of α-SMA (P<0.01) and enhanced the gene and protein levels of Nrf2 in the nucleus and GCLC, HO-1, Keap1, GCLM, and NQO1 in the cytoplasm of HSCT6 cells (P<0.05, P<0.01). After the Nrf2 gene level of HSCT6 cells was knocked down by siRNA transfection, the protein level of α-SMA was increased (P<0.01), and the levels of GCLC, GCLM, Keap1, NQO1, and HO-1 were decreased (P<0.05, P<0.01). These results indicated that GDFMT-containing serum successfully triggered the Nrf2 signaling pathway of HSCT6 cells. ConclusionThe anti-hepatic fibrosis effect of 10%GDFMT was equivalent to that of penicillamine. In addition, GDFMT can inhibit HSC activation and reduce oxidative stress damage by activating the Nrf2/antioxidant response element (ARE) pathway, as manifested by the up-regulated expression of Nrf2 and downstream antioxidant genes (GCLC, GCLM, HO-1, Keap1, and NQO1) and reduced secretion of ROS, α-SMA, and ColⅠ.
8.Mineralogical studies on iron-containing mineral medicines, Haematitum and Limonitum.
Min LU ; Xiao-Fei WANG ; Cheng-Cheng WANG ; Jing-Xu CHEN ; Hang-Jie ZHU ; Juan LI ; Yan CAO
China Journal of Chinese Materia Medica 2025;50(5):1179-1186
Haematitum and Limonitum are two iron-containing mineral medicines included in the 2020 edition of the Chinese Pharmacopoeia. They have similar main components and major differences in their property, flavor, channel tropism, and clinical uses. In this study, we investigated the surface properties, mineral composition, mineral dissociation, elemental composition, and iron state of Haematitum and Limonitum to explore their mineralogical differences. Scanning electron microscopy(SEM), specific surface and porosity analyzer, X-ray diffractometer(XRD), X-ray photoelectron spectrometer(XPS), and advanced mineral identification and characterization system(AMICS) were used to analyze the mineralogy of Haematitum and Limonitum. The results showed that Haematitum had an angular surface with granular attachments and a specific surface area of 17.04 m~2·g~(-1). In comparison, Limonitum had a smooth and flat surface with a bundled acicular crystal structure and a specific surface area of 46.29 m~2·g~(-1). Haematitum consists of 31 detectable minerals containing 18 elements, with the major element, iron(44.5% Fe~(2+) and 55.5% Fe~(3+)) distributed in 17 minerals, including hematite, iron oxide, knebelite, siderite, and magnesioferrite. Limonitum consists of 32 detectable minerals containing 17 elements, with the major element, iron(14.5% Fe~(2+) and 85.5% Fe~(3+)) distributed in 19 minerals, including limonite, iron oxide, chlorite, and knebelite. In summary, the elemental composition of Haematitum and Limonitum does not differ greatly, but there are large differences in the mineral composition and iron state. The large specific surface area and strong adsorption capacity of Limonitum may be one of the mechanisms of its anti-diarrheal action. The Fe_2O_3 and illite contained in Haematitum and Limonitum may be the key substances for their hemostasis effects. The mineralogical differences are expected to provide a reference for explaining the scientific connotation of mineral medicine and laying a material foundation for studying its mechanism of action.
Iron/analysis*
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Minerals/chemistry*
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Drugs, Chinese Herbal/chemistry*
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X-Ray Diffraction
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Microscopy, Electron, Scanning
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Photoelectron Spectroscopy
9.Genetic diversity analysis and DNA fingerprinting of Artemisia argyi germplasm resources based on EST-SSR molecular markers.
Yu-Yang MA ; Chang-Jie CHEN ; Ming-Xing WANG ; Yan FANG ; Yu-Huan MIAO ; Da-Hui LIU
China Journal of Chinese Materia Medica 2025;50(9):2356-2364
This study investigates the genetic diversity and evolutionary relationships of different Artemisia argyi germplasm resources to provide a basis for germplasm identification, variety selection, and resource protection. A total of 192 germplasm resources of A. argyi were studied, and EST-based simple sequence repeat(EST-SSR) primers were designed based on transcriptomic data of A. argyi. Polymerase chain reaction(PCR) amplification was performed on these resources, followed by fluorescence capillary electrophoresis to detect genetic diversity and construct DNA fingerprints. From 197 pairs of primers designed, 28 pairs with polymorphic and clear bands were selected. A total of 278 alleles were detected, with an average of 9.900 0 alleles per primer pair and an average effective number of alleles of 1.407 2. The Shannon's diversity index(I) for the A. argyi germplasm resources ranged from 0.148 1 to 0.418 0, with an average of 0.255 7. The polymorphism information content(PIC) ranged from 0.454 5 to 0.878 0, with an average of 0.766 9, showing high polymorphism. Cluster analysis divided the A. argyi germplasm resources into three major groups: Group Ⅰ contained 136 germplasm samples, Group Ⅱ contained 45, and Group Ⅲ contained 11. Principal component analysis also divided the resources into three groups, which was generally consistent with the clustering results. Mantel test results showed that the genetic variation in A. argyi populations was to some extent influenced by geographic distance, but the effect was minimal. Structure analysis showed that 190 germplasm materials had Q≥ 0.6, indicating that these germplasm materials had a relatively homogeneous genetic origin. Furthermore, 8 core primer pairs were selected from the 28 designed primers, which could distinguish various germplasm types. Using these 8 core primers, DNA fingerprints for the 192 A. argyi germplasm resources were successfully constructed. EST-SSR molecular markers can be used to study the genetic diversity and phylogenetic relationships of A. argyi, providing theoretical support for the identification and molecular-assisted breeding of A. argyi germplasm resources.
Artemisia/classification*
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Microsatellite Repeats
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Genetic Variation
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Expressed Sequence Tags
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DNA Fingerprinting
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Phylogeny
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Polymorphism, Genetic
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DNA, Plant/genetics*
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Genetic Markers
10.Clinical Study on T2 Mapping Evaluation of Joint Disc Characteristics in Patients with Temporomandibular Joint Dysfunction Syndrome
Shizhen HE ; Xiaoyu WEI ; Chen LIU ; Li ZHANG ; Lirong YUE ; Peng WANG
Journal of Kunming Medical University 2025;46(6):96-102
Objective To quantitatively evaluate structural changes in the TMD disc using magnetic resonance T2 mapping technology at open and closed mouth positions,and assess its significance.Methods 127 newly diagnosed patients with TMD and 51 controls in the Department of Oral and Maxillofacial Surgery of the Affiliated Hospital of Yunnan University from June 2023 to January 2024 were prospectively collected.All subjects underwent routine TMJ sequence and T2 mapping sequence scans.After scanning,the pseudo-color images were processed,and T2 values of the joint disc(anterior and posterior bands)were measured at open and closed mouth positions to analyze their correlation with TMD disc displacement.Results The T2 values of the posterior zone of the joint disc in both open and closed positions were higher than those in the anterior zone of the joint disc in the case group(P<0.05);for different anterior displacement degrees of the joint disc,T2 values showed a progressive increase from the normal position group to the mild and moderate anterior displacement groups,while the severely displaced group demonstrated a decreasing trend(P<0.01);joint clicking and occlusal abnormalities were independent risk factors for non-reducible anterior joint disc displacement in TMD patients.Conclusion Scans during both mouth-opening and closing positions can be used to assess joint disc injury in TMD;T2 mapping technology can quantitatively and sensitively reflect changes in the biochemical composition of joint disc microstructure.

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