1.Comparison of sleep EEG power spectral density between depressive episode patients and schizophrenia patients with suicidal behavior
Jingwen LIU ; Yunfei ZHOU ; Jingchu HU ; Jiaoyan ZHOU ; Junwei YANG ; Jie LIANG ; Hong XU ; Yu CANG ; Shimeng MA
Sichuan Mental Health 2026;39(1):50-57
BackgroundPatients with depressive episode and schizophrenia have a high risk of suicide. The sleep electroencephalogram power spectral density characteristics of patients with depressive episode accompanied by suicidal behavior and those with schizophrenia may be different, but there is currently a lack of direct comparative studies on these two groups of patients. ObjectiveTo compare the sleep electroencephalogram power spectral density between depressive episode and schizophrenic patients with suicidal behavior, in order to provide references for exploring predictive indicators of suicidal behavior. MethodsFrom June 2018 to December 2020, 20 patients with depressive episode and 20 patients with schizophrenia who had committed suicide within the past month and were treated at the outpatient department of Shenzhen Kangning Hospital were selected. All of them met the diagnostic criteria for depressive episode or schizophrenia as defined in the International Classification of Diseases, tenth edition (ICD-10). Using a random sampling method, 20 volunteers with matching gender and age to the patient groups were selected from the Cuiping community in Shenzhen as the control group. The subjective sleep of the patients was evaluated using the Insomnia Severity Index (ISI), the Dysfunctional Belief and Attitude about Sleep (DBAS), the Disturbing Dreams and Nightmare Severity Index (DDNSI), and the Epworth Somnolence Scale (ESS). The objective sleep of the patients was assessed using polysomnography. The sleep electroencephalogram was filtered and the power spectral density of the brain wave was analyzed and processed for all the subjects. The subjective and objective sleep conditions of the two patient groups were compared, and the sleep electroencephalogram power spectral density of the patient groups and the control group were also compared. ResultsA comparison of subjective and objective sleep conditions between patients with depressive episode accompanied by suicidal behavior and patients with schizophrenia accompanied by suicidal behavior showed no statistically significant differences (P>0.05). Comparisons of sleep electroencephalogram power spectral density in the W stage (average power of α wave, total power of δ wave, average power of δ wave, average power of θ wave), N1 stage (average power of β wave, total power of α wave, total power of δ wave), N2 stage (total power of α wave, average power of α wave, total power of δ wave, average power of δ wave), N3 stage (average power of α wave, average power of δ wave), and R stage (total power of α wave, average power of α wave, total power of δ wave, average power of δ wave) between patients with depressive episode accompanied by suicidal behavior, patients with schizophrenia accompanied by suicidal behavior, and the control group showed statistically significant differences (P<0.05 or 0.01). The total power of δ wave in the W stage and the average power of β wave and δ wave in the N1 stage were higher in two patient groups were higher than those of the control group. The total power of α wave and the average power of α wave in the N2 stage were lower than those of the control group, while the average power of δ wave was higher than that of the control group. The average power of α wave in the N3 stage of both patient groups were lower than that of the control group, while the average power of δ wave was higher than that of the control group. The total power and average power of α wave in the R stage were lower than those of the control group, while the total power and average power of δ wave were higher than those of the control group. All the differences were statistically significant. Patients with depressive episode accompanied by suicidal behavior had higher average powers of α wave, δ wave, and θ wave in the W stage compared with the control group, while the total power of α wave in the N1 stage was lower in the former group. All these differences were statistically significant (P<0.05). ConclusionThe depressive episode patients accompanied by suicidal behavior have highly overlapping sleep electroencephalogram abnormal patterns with those of schizophrenia patients, mainly manifested as a general decrease in α wave power (N2, N3, R stage) and a general increase in δ wave power (W, N1, N2, N3, R stage) as well as β wave power in N1 stage. At the same time, patients with depressive episode accompanied by suicidal behavior also show specific changes, including an increase in the average power of α and θ waves during the wakefulness period (W stage), and a decrease in the total power of α wave in N1 stage. [Funded by Guangdong Province High-level Clinical Key Specialty (with supporting funds from Shenzhen City) (number, SZGSP013); Shenzhen Key Medical Discipline (number, SZXK041); Shenzhen Clinical Medicine Research Center Project (number, 20210617155253001)]
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.Polydatin Delays Progression of Colitis-associated Colorectal Cancer by Modulating IL-17A/Wnt/β-catenin Signaling Pathway
Jie LIU ; Mengmeng LYU ; Yanfei HONG ; Xinmei NAN ; Jialong SU ; Huachen LIU ; Qing WANG ; Guiying PENG
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(13):144-154
ObjectiveTo investigate the effects and underlying mechanisms of polydatin in delaying the progression of colitis-associated colorectal cancer (CAC) by constructing an azoxymethane (AOM)/dextran sulfate sodium (DSS)-induced CAC mouse model and conducting in vitro experiments. MethodsFifty-four male C57BL/6J mice were randomly divided into normal, model, and polydatin groups (0.045 g·kg-1). The CAC mouse model was established using AOM/DSS, and samples were collected at 4, 7, and 10 weeks. Body weight change rate, disease activity index (DAI), and tumor formation were assessed. Hematoxylin-eosin (HE) staining was used to observe pathological injury in intestinal tissues. Immunohistochemistry (IHC) was performed to detect zonula occludens-1 (ZO-1) expression in colonic tissues, and Western blot was used to detect the expression of E-cadherin, N-cadherin, and Vimentin in colonic epithelial cells. Real-time PCR was used to measure mRNA expression of interleukin-17A (IL-17A), Wnt3a, β-catenin, T cell factor 1 (Tcf1), E-cadherin, N-cadherin, and Vimentin in colonic tissues. Flow cytometry was used to analyze the proportion of CD8+T cells and the expression of exhaustion-related molecules in tumors. Human colon cancer DLD-1 cells were cultured in a polydatin-containing medium, and wound healing assays were performed to observe migration changes. Real-time PCR was used to detect mRNA expression of interleukin-17 receptor A (IL-17RA), Wnt3a, β-catenin, Tcf1, E-cadherin, N-cadherin, and Vimentin in DLD-1 cells. ResultsCompared with the normal group, the model group at all three time points showed significantly decreased body weight change rate (P<0.01), significantly shortened colon length (P<0.01), and markedly increased DAI scores (P<0.01). HE staining revealed significant inflammatory cell infiltration in the submucosa of the colon in the model group, accompanied by epithelial dysplasia. ZO-1 expression in colonic tissues was significantly reduced (P<0.01). The mRNA expression of the pro-inflammatory factor IL-17A and key molecules of the Wnt/β-catenin pathway (Wnt3a, β-catenin, Tcf1) was significantly elevated (P<0.05). The mRNA and protein expression of epithelial-mesenchymal transition (EMT) markers N-cadherin and Vimentin was significantly upregulated (P<0.05), while E-cadherin expression was significantly downregulated (P<0.05). The proportion of tumor-infiltrating CD8+T cells expressing immunosuppressive molecules (TIM-3, LAG-3, PD-1) was significantly increased (P<0.05). Compared with the model group, the polydatin group showed significant improvement in body weight and DAI score (P<0.01), as well as recovery of colon length and tissue injury. ZO-1 expression in colonic tissue was significantly increased (P<0.01), while IL-17A, Wnt3a, β-catenin, Tcf1, N-cadherin, and Vimentin expression levels were significantly decreased (P<0.05), and E-cadherin expression was significantly increased (P<0.01). Tumor-infiltrating CD8+ T cells expressing immunosuppressive molecules were significantly reduced (P<0.05). In vitro experiments showed that polydatin significantly inhibited migration of DLD-1 cells (P<0.01) and reversed the upregulation of IL-17RA, Wnt3a, β-catenin, N-cadherin, and Vimentin mRNA, as well as the downregulation of E-cadherin mRNA (P<0.05). ConclusionPolydatin inhibits IL-17A secretion and IL-17RA expression, improves the immune microenvironment, blocks activation of the Wnt/β-catenin signaling pathway, suppresses EMT markers (N-cadherin and Vimentin), and restores tight junction protein expression in intestinal epithelial cells, thereby delaying the progression from colitis to colorectal cancer in mice.
5.Proteomics combined with bioinformatics analysis of protein markers of dry eye
Yanting YANG ; Yajun SHI ; Guang YANG ; Haiyang JI ; Jie LIU ; Jue HONG ; Dan ZHANG ; Xiaopeng MA
International Eye Science 2025;25(1):104-111
AIM:To analyze differential proteins associated with the pathogenesis of dry eye(DE)using bioinformatics methods, in order to reveal their potential molecular mechanisms.METHODS: Articles published in PubMed and EMBASE databases from the inception of the database to August 31, 2023, that used proteomic methods to detect protein expression in clinical samples of dry eye were searched. Differential proteins were selected and further analyzed using the STRING database and Cytoscape software for hub gene screening and module analysis. Protein-protein interaction(PPI)analysis, gene ontology(GO)functional annotation, and Kyoto encyclopedia of genes and genomes(KEGG)pathway enrichment analysis were performed.RESULTS: A total of 21 articles were included, identifying 74 differentially expressed proteins. The most frequently occurring differential proteins were calgranulin A(SA1008), lipocalin-1(LCN1), lysozyme C(LYZ), mammaglobin-B(SCGB2A1), proline-rich protein 4(PRR4), transferrin(TF), and calgranulinB(S100A9). The top 10 hub genes were serum albumin(ALB), tumor necrosis factor(TNF), interleukin 6(IL6), IL1B, IL8, matrix metalloproteinase 9(MMP9), alpha-1-antitrypsin(SERPINA1), IL10, complement component 3(C3), and lactotransferrin(LTF). Module analysis suggested MMP9 and PRR4 as seed genes. KEGG analysis showed that differential proteins were mainly enriched in the IL17 signaling pathway(61.9%).CONCLUSION: The results reveal potential molecular targets and pathways for DE and confirm the association between the pathogenesis of DE and inflammation. Further in-depth research is needed to confirm the significance of these biomarkers in clinical practice.
6.Zhang Hong'Case Studies on the Treatment of Peripheral Nerve Injury with Acupuncture
Dandan MA ; Jie CHENG ; Zefei JIANG ; Guang LIU ; Xi CHEN ; Hong ZHANG
World Science and Technology-Modernization of Traditional Chinese Medicine 2025;27(9):2745-2752
Peripheral nerve injury refers to the impairment that occurs when the sens-ory nerves and motor nerves are damaged.Professor Zhang Hong has unique insights into the treatment of neurologically diseases in children.Based on the different manifestations of the disease,it is categorized under the traditional Chinese medicine concepts of"atro-phy syndrome","muscle injury"and"Bi syndrome".Professor Zhang believes that the disease is fundamentally rooted in the liver and kidneys,and that treatment should notonly address the acquired symptoms but also nurture the innate foundation.This article a-nalyze and summarize professor Zhang's clinical experience in using acupuncture,electroa-cupuncture,moving cupping,and moxibustion in the comprehensive treatment of peripheral nerve injury,providing a reference for clinical treatment of peripheral neuropathy in chil-dren.
7.Advances in regulation of dysregulated bone remodeling by immune cells within rheumatoid arthritis synovial microenvironment
Jun-jie HE ; Zhong-liu YAO ; Ming-yue HU ; Hong HUANG ; Xiong CAI
Chinese Pharmacological Bulletin 2025;41(10):1801-1807
Rheumatoid arthritis(RA)is characterized by bidi-rectional bone remodeling imbalance,clinically termed the "high resorption-low formation" paradox,stemming not only from osteoclast hyperactivation but also critically involving pro-found suppression of osteoblast differentiation and function.No-tably,this suppression cannot be fully attributed to osteoclast hyperactivity;synovium-resident immune cells exert a pivotal regulatory influence through distinct mechanisms.This review systematically examines how synovial immune cells orchestrate bone remodeling in RA through both paracrine cytokine networks and direct cell-cell communication with bone lineage cells,thereby perturbing physiological homeostasis and driving patho-logical progression.These mechanistic revelations yield innova-tive perspectives on RA pathogenesis,positioning immune-medi-ated osteoimmune dysregulation as a promising therapeutic fron-tier for targeted intervention.
8.Establishment of HPLC characteristic chromatograms and content determination of nine constituents for Yixin Fumai Granules
Xin-ru CHI ; Zheng-wei CHEN ; Jie LI ; Ai-ying WU ; Li-hua YIN ; Hong-bing LIU ; Jing-guang LU
Chinese Traditional Patent Medicine 2025;47(1):1-6
AIM To establish the HPLC characteristic chromatograms for Yixin Fumai Granules,and to determine the contents of sodium danshensu,protocatechualdehyde,chlorogenic acid,calycosin-7-O-β-D-glucoside,ferulic acid,rosalinic acid,salvianolic acid A,salvianolic acid B,schisandrol A.METHODS The analysis was performed on a 35 ℃ thermostatic Acutfex PA-C18 column(4.6 mm ×250 mm,5 μm),with the mobile phase comprising of acetonitrile-0.1%phosphoric acid flowing at 1.0 mL/min in a gradient elution manner,and the detection wavelengths were set at 210,250,280,320 nm.Subsequently,cluster analysis and principal component analysis were performed.RESULTS There were 11 characteristic peaks in the characteristic chromatograms for 15 batches of samples with the similarities of more than 0.980.Nine constituents showed good linear relationships within their own ranges(r≥0.999 6),whose average recoveries were 97.60%-107.02%with the RSDs of 0.78%-1.87%.Various batches of samples were clustered into 4 categories,2 principal components demonstrated the accumulative variance contribution rate of 89.454%.CONCLUSION This sensitive and reproducible method can provide a reference for the quality evaluation and control of Yixin Fumai Granules.
9.Establishment of HPLC characteristic chromatograms and content determination of nine constituents for Yixin Fumai Granules
Xin-ru CHI ; Zheng-wei CHEN ; Jie LI ; Ai-ying WU ; Li-hua YIN ; Hong-bing LIU ; Jing-guang LU
Chinese Traditional Patent Medicine 2025;47(1):1-6
AIM To establish the HPLC characteristic chromatograms for Yixin Fumai Granules,and to determine the contents of sodium danshensu,protocatechualdehyde,chlorogenic acid,calycosin-7-O-β-D-glucoside,ferulic acid,rosalinic acid,salvianolic acid A,salvianolic acid B,schisandrol A.METHODS The analysis was performed on a 35 ℃ thermostatic Acutfex PA-C18 column(4.6 mm ×250 mm,5 μm),with the mobile phase comprising of acetonitrile-0.1%phosphoric acid flowing at 1.0 mL/min in a gradient elution manner,and the detection wavelengths were set at 210,250,280,320 nm.Subsequently,cluster analysis and principal component analysis were performed.RESULTS There were 11 characteristic peaks in the characteristic chromatograms for 15 batches of samples with the similarities of more than 0.980.Nine constituents showed good linear relationships within their own ranges(r≥0.999 6),whose average recoveries were 97.60%-107.02%with the RSDs of 0.78%-1.87%.Various batches of samples were clustered into 4 categories,2 principal components demonstrated the accumulative variance contribution rate of 89.454%.CONCLUSION This sensitive and reproducible method can provide a reference for the quality evaluation and control of Yixin Fumai Granules.
10.Effects of Wenyang Jiedu Tongluo Recipe on a mouse model of diabetic nephropathy based on macrophage recruitment and polarization
Fan LI ; Jie WANG ; Cheng-ji CUI ; Hong-bao ZHANG ; Hong-kai LIU ; Xu HUANG ; Yu-tong LIU ; Shou-lin ZHANG
Chinese Traditional Patent Medicine 2025;47(5):1494-1501
AIM To investigate the effects of Wenyang Jiedu Tongluo Recipe(WYJDTLR)on macrophage recruitment and polarization function in a mouse model of diabetic kidney disease(DKD).METHODS 50 db/db mice were randomly divided into the model group,the valsartan group(10.29 mg/kg)and the high-dose,medium-dose and low-dose WYJDTLR groups(26.52,13.26 and 6.63 g/kg),with 10 mice in each group,in contrast to another 10 db/m mice of the blank group.After 8 weeks of administration,the mice had their levels of fasting blood glucose,24-hour urinary protein quantity(24h-UTP),serum creatinine(Scr)and blood urea nitrogen(BUN)observed;their morphological changes of renal tissues observed by HE staining;their degree of renal glycogen deposition observed by PAS staining;their degree of renal fibrosis observed by Masson staining;their levels of MCP-1 and MCF-1 in serum and TNF-α and IL-1 β in renal tissue detected by ELISA;their renal protein expressions of VCAM-1 and ICAM-1 detected by IHC and Western blot;and their renal expressions of CD86 and CD206 detected by IF.RESULTS Compared with the model group,the WYJDTLR groups displayed decreased levels of fasting blood glucose,24h-UTP,Scr and BUN(P<0.05,P<0.01);improved degree of glomerular hypertrophy,mild proliferation of mesangial cells,dilatation of renal tubular,vacuolar degeneration of renal tubular epithelial cells,deposition of glomerular glycogen,and fibrosis of renal tissues(P<0.01);decreased levels of MCP-1 and MCF-1 in serum and TNF-α and IL-1β in renal tissue(P<0.05,P<0.01);decreased renal protein expressions of VCAM-1 and ICAM-1(P<0.05,P<0.01),thus reduced the recruitment of macrophages to the kidney;decreased renal CD86 protein expression(P<0.01);and increased CD206 protein expression(P<0.01),thus inhibited M1-type polarization of macrophages and promoted M2-type polarization of macrophages.CONCLUSION WYJDTLR can delay the DKD progression in mice by reducing the occurrence of inflammatory reactions through reducing the level of macrophage recruitment factor,inhibiting the M1-type polarization,and promoting the M2-type polarization.

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