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1.
J Asian Nat Prod Res ; 26(6): 765-771, 2024 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-38373226

RESUMO

To clarify the chemical basis of the total alkaloids of Uncaria rhynchophylla, HPLC-VWD chromatogram of total alkaloids was established. Under its guidance, modern chromatographic and spectroscopic techniques were used to track, isolate and identify the representative principal components. As a result, one new monoterpenoid indole alkaloid, 3S,15S-N4-methoxymethyl-geissoschizine methyl ether (1), together with 20 known alkaloids (2-21), and 5 other known compounds (22-26) were obtained. Meanwhile, sixteen characteristic peaks were identified from the total alkaloids using HPLC analysis. Then, the anti-neuroinflammatory effect of compounds 1-21 was assessed through inhibiting nitric ---oxide (NO) production in lipopolysaccharide (LPS)-induced BV-2 microglial cells. Among them, compounds 1, 3, 7, 8, 11, 12, 19 and 21 showed potent inhibitory activities with IC50 values of 5.87-76.78 µM.


Assuntos
Alcaloides , Anti-Inflamatórios , Alcaloides Indólicos , Lipopolissacarídeos , Microglia , Óxido Nítrico , Uncaria , Uncaria/química , Estrutura Molecular , Alcaloides/farmacologia , Alcaloides/química , Óxido Nítrico/antagonistas & inibidores , Óxido Nítrico/biossíntese , Anti-Inflamatórios/farmacologia , Anti-Inflamatórios/química , Lipopolissacarídeos/farmacologia , Microglia/efeitos dos fármacos , Animais , Camundongos , Cromatografia Líquida de Alta Pressão , Alcaloides de Triptamina e Secologanina/farmacologia , Alcaloides de Triptamina e Secologanina/química
2.
Mol Cell Biochem ; 2023 Dec 25.
Artigo em Inglês | MEDLINE | ID: mdl-38145448

RESUMO

The epidermal growth factor receptor 1 (EGFR) plays a crucial role in the progression of various malignant tumors and is considered a potential target for treating triple-negative breast cancer (TNBC). However, the effectiveness of representative tyrosine kinase inhibitors (TKIs) used in EGFR-targeted therapy is limited in TNBC patients. In our study, we observed that the TNBC cell lines MDA-MB-231 and MDA-MB-468 exhibited resistance to Gefitinib. Treatment with Gefitinib caused an upregulation of Fascin-1 (FSCN1) protein expression and a downregulation of miR-221-3p in these cell lines. However, sensitivity to Gefitinib was significantly improved in both cell lines with either inhibition of FSCN1 expression or overexpression of miR-221-3p. Our luciferase reporter assay confirmed that FSCN1 is a target of miR-221-3p. Moreover, Gefitinib treatment resulted in an upregulation of phosphorylated signal transducer and activator of transcription 3 (p-STAT3) in MDA-MB-231 cells. Using Stattic, a small-molecule inhibitor of STAT3, we observed a significant enhancement in the inhibitory effect of Gefitinib on the growth, migration, and invasion of MDA-MB-231 cells. Additionally, Stattic treatment upregulated miR-221-3p expression and downregulated FSCN1 mRNA and protein expression. A strong positive correlation was noted between the expression of STAT3 and FSCN1 in breast cancer tissues. Furthermore, patients with high expression levels of both STAT3 and FSCN1 had a worse prognosis. Our findings suggest that elevated FSCN1 expression is linked to primary resistance to EGFR TKIs in TNBC. Moreover, we propose that STAT3 regulates the expression of miR-221-3p/FSCN1 and therefore modulates resistance to EGFR TKI therapy in TNBC. Combining EGFR TKI therapy with inhibition of FSCN1 or STAT3 may offer a promising new therapeutic option for TNBC.

3.
Chem Biodivers ; 19(6): e202200356, 2022 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-35581725

RESUMO

Four pairs of cinnamoyl-ß-triketone derivative enantiomers, (+)- and (-)-xanthostones A-D ((+)- and (-)-1-4), were isolated from Xanthostemon chrysanthus. Compounds 1 and 2 feature a new rearranged cinnamoyl-phloroglucinol scaffold fused with a cinnamyl-ß-triketone framework. Compounds 1, 3, and 4 are the first examples of natural products with a peculiar phenethyl-pyranone acid unit. Their structures with absolute configurations were determined by spectroscopic data, X-ray diffraction analysis and electronic circular dichroism (ECD) calculation. Interestingly, these novel compounds showed a tautomeric behavior in solution, which was revealed by NMR spectroscopy and density functional theory calculation. A plausible biosynthetic pathway toward xanthostones A-D was proposed. Additionally, the anti-inflammatory and antibacterial activities of xanthostones A-D were evaluated.


Assuntos
Myrtaceae , Anti-Inflamatórios , Dicroísmo Circular , Estrutura Molecular , Myrtaceae/química , Floroglucinol/química , Estereoisomerismo
4.
Molecules ; 26(11)2021 Jun 02.
Artigo em Inglês | MEDLINE | ID: mdl-34199646

RESUMO

Wild ginseng (W-GS), ginseng under forest (F-GS, planted in mountain forest and growing in natural environment), and cultivated ginseng (C-GS) were compared via HPLC-DAD and HPLC-IT-TOF-MSn. A total of 199 saponins, including 16 potential new compounds, were tentatively identified from 100 mg W-GS (177 saponins in W-GS with 11 new compounds), F-GS (56 saponins with 1 new compound), and C-GS (60 saponins with 6 new compounds). There were 21 saponins detected from all the W-GS, F-GS, and C-GS. Fifty saponins were only detected from W-GS, including 23 saponins found in ginseng for the first time. Contents of ginsenosides Re (12.36-13.91 mg/g), Rh1 (7.46-7.65 mg/g), Rd (12.94-12.98 mg/g), and the total contents (50.52-55.51 mg/g) of Rg1, Re, Rf, Rb1, Rg2, Rh1, and Rd in W-GS were remarkably higher than those in F-GS (Re 1.22-3.50 mg/g, Rh1 0.15-1.49 mg/g, Rd 0.19-1.49 mg/g, total 5.69-18.74 mg/g), and C-GS (Re 0.30-3.45 mg/g, Rh1 0.05-3.42 mg/g, Rd 0.17-1.68 mg/g, total 2.99-19.55 mg/g). Contents of Re and Rf were significantly higher in F-GS than those in C-GS (p < 0.05). Using the contents of Re, Rf, or Rb1, approximately a half number of cultivated ginseng samples could be identified from ginseng under forest. Contents of Rg1, Re, Rg2, Rh1, as well as the total contents of the seven ginsenosides were highest in ginseng older than 15 years, middle-high in ginseng between 10 to 15 years old, and lowest in ginseng younger than 10 years. Contents of Rg1, Re, Rf, Rb1, Rg2, and the total of seven ginsenosides were significantly related to the growing ages of ginseng (p < 0.10). Similarities of chromatographic fingerprints to W-GS were significantly higher (p < 0.05) for F-GS (median: 0.824) than C-GS (median: 0.745). A characteristic peak pattern in fingerprint was also discovered for distinguishing three types of ginseng. Conclusively, wild ginseng was remarkably superior to ginseng under forest and cultivated ginseng, with ginseng under forest slightly closer to wild ginseng than cultivated ginseng. The differences among wild ginseng, ginseng under forest, and cultivated ginseng in saponin compositions and contents of ginsenosides were mainly attributed to their growing ages.


Assuntos
Panax/crescimento & desenvolvimento , Saponinas/isolamento & purificação , Cromatografia Líquida de Alta Pressão , Florestas , Estrutura Molecular , Panax/química , Panax/classificação , Saponinas/química
5.
Zhongguo Zhong Yao Za Zhi ; 46(17): 4307-4313, 2021 Sep.
Artigo em Zh | MEDLINE | ID: mdl-34581033

RESUMO

The development of quality Chinese medicine is an important way to improve the quality of Chinese medicine, and ensure the safety and effectiveness of Chinese medicine. This article systematically elaborates the definition, classification, standard and mana-gement certification strategy of quality Chinese medicine. We present the quality Chinese medicine which is higher quality than that of eligible Chinese medicine based on quality control standards. Quality Chinese medicine is strictly in accordance with management procedures, likely GAP and GMP et al, during the productive process, which quality indicators is higher than that of the current relevant national quality standards, such as Chinese Pharmacopoeia(ChP) et al; its limited indicators such as exogenous pollutants and endogenous toxic substances are lower than that of the current relevant national quality standards, likely ChP et al; meanwhile these Chinese herbal medicine, medicinal pieces, patent medicines, and health products and foods with Chinese medicine raw materials are been certificated by quality Chinese medicine. At the same time, this article systematically expounds the five major management systems of quality Chinese medicine, including technical training management for practitioners, productive process management, standard mana-gement, quality inspection and certification management, and product traceability management. And we put forward strategies to improve the supervision and management system, and promote the standardization and development of quality Chinese medicine by improving the technical management system of quality Chinese medicine, strengthening the quality management system and six sigma(6σ) management in the company. These strategies will provide a reliable basis and effective way to improve the quality of Chinese medicine.


Assuntos
Medicamentos de Ervas Chinesas , Medicina Tradicional Chinesa , Alimentos , Controle de Qualidade , Padrões de Referência
6.
Int J Med Sci ; 17(1): 97-102, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-31929743

RESUMO

Colorectal cancer (CRC) is one of the most common cancers in Han Chinese and is characterized by low rates of early diagnosis and poor survival rates. Angiopoietin-2 (Ang2), an endothelial tyrosine kinase, is involved in CRC progression, but little is known about the association between single nucleotide polymorphisms (SNPs) and diagnosis or prognosis of CRC. This study reports on the association between 5 SNPs of the Angpt2 gene (rs2442598, rs734701, rs1823375, 11137037, and rs12674822) and CRC susceptibility as well as clinical outcomes in 379 patients with CRC and in 1,043 cancer-free healthy controls. Carriers of the CG allele at rs1823375 and those with the GT+TT allele of the variant rs12674822 were at greater risk of CRC than their respective wild-type counterparts. Moreover, carriers of the GT or GT+TT allele in rs12674822 were significantly more likely to have tumor involvement in both the colon and rectum compared with wild-type (GG) carriers, while 5-year progression-free survival was also significantly worse in those carrying the GT+TT allele in rs12674822 compared with wild-type carriers. Our study is the first to describe correlations between Angpt2 polymorphisms and CRC development and progression in people of Chinese Han ethnicity.


Assuntos
Angiopoietina-2/genética , Biomarcadores Tumorais/genética , Neoplasias Colorretais/genética , Predisposição Genética para Doença , Adulto , Alelos , Neoplasias Colorretais/patologia , Progressão da Doença , Intervalo Livre de Doença , Feminino , Estudos de Associação Genética , Genótipo , Heterozigoto , Humanos , Estimativa de Kaplan-Meier , Masculino , Pessoa de Meia-Idade , Polimorfismo de Nucleotídeo Único/genética , Prognóstico
7.
Mediators Inflamm ; 2020: 3050487, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32410849

RESUMO

OBJECTIVE: This study aimed at investigating the therapeutic effect and mechanism of pioglitazone metformin complex preparation (PM) in polycystic ovary syndrome (PCOS) comorbid psychological distress. METHODS: Seventy-five patients with PCOS comorbid psychological distress were randomly allocated into the PM, metformin, and placebo groups. The primary efficacy measure was the change from baseline to week 12 on the Symptom Checklist 90-R (SCL-90-R) scores. NLRP3 inflammasome, IL-1ß, IL-6, TNF-α, and biochemical parameters were determined at baseline and at week 12. The participants were required to meet the criteria for PCOS (Rotterdam, NIH) and psychological distress (any factor scores of SCL - 90 - R > 2). RESULTS: The participants had significantly high scores on the SCL-90-R scales of anxiety and depression. PM significantly decreased anxiety and depression symptom severity (from 2.31 ± 0.75 to 1.65 ± 0.38, p < 0.001, and from 2.08 ± 0.74 to 1.61 ± 0.46, p = 0.010, at week 12, respectively). PM significantly decreased the expression of NRPL3 and caspase-1. Patients in the PM group experienced a significant reduction in IL-1ß (from 98.42 ± 14.38 to 71.76 ± 13.66, p = 0.02), IL-6 (from 87.51 ± 8.74 to 71.98 ± 15.87, p = 0.02), and TNF-α (from 395.33 ± 88.55 to 281.98 ± 85.69, p = 0.04). PM was superior to metformin in reducing total testosterone (2.24 ± 0.74 versus 3.06 ± 0.83, p = 0.024, at week 12). CONCLUSIONS: This study is the first to reveal that PM alleviates psychological distress via inhibiting NLRP3 inflammasome and improves several markers, including total testosterone.


Assuntos
Metformina/farmacologia , Proteína 3 que Contém Domínio de Pirina da Família NLR/antagonistas & inibidores , Pioglitazona/farmacologia , Síndrome do Ovário Policístico/tratamento farmacológico , Síndrome do Ovário Policístico/psicologia , Angústia Psicológica , Adulto , Ansiedade/complicações , Ansiedade/tratamento farmacológico , Comorbidade , Depressão/complicações , Depressão/tratamento farmacológico , Feminino , Humanos , Inflamassomos , Pacientes Ambulatoriais , Síndrome do Ovário Policístico/complicações , Estudos Prospectivos , Inquéritos e Questionários , Resultado do Tratamento , Adulto Jovem
8.
Sensors (Basel) ; 20(5)2020 Mar 06.
Artigo em Inglês | MEDLINE | ID: mdl-32155875

RESUMO

The accuracy of the circular grating is the key point for control precision of the single gimbal control moment gyroscope servo system used in civilian micro-agile satellites. Instead of using the multi reading heads to eliminate eccentricity errors, an algorithm compensation method based on a calibration experiment using a single reading head was proposed to realize a low-cost and high accuracy angular position measurement. Moreover, the traditional hardware compensation method using double reading heads was also developed for comparison. Firstly, the single gimbal control moment gyroscope system of satellites was introduced. Then, the errors caused by the installation of the reading head were studied and the mathematic models of these errors were developed. In order to construct the compensation function, a calibration experiment using the autocollimator and 24-sided prism was performed. Comparison of angle error compensation using the algorithm and hardware method was presented, and results showed that the algorithm compensation method proposed by this paper achieved the same accuracy level as the hardware method. Finally, the proposed method was further verified through a control system simulation.

9.
Zhongguo Zhong Yao Za Zhi ; 45(11): 2708-2713, 2020 Jun.
Artigo em Zh | MEDLINE | ID: mdl-32627507

RESUMO

Appropriate producing areas can guarantee the quality of Tibetan medicine, but research on the suitable ecological factors and suitable producing areas of Tibetan medicinal plants is scarce. This paper used the Geographic Information System for Global Medicinal Plants(GMPGIS) to analyze the ecological suitability of Tibetan medicinal plants nationwide. For the first time, the range of ecological factors and main soil types of Tibetan medicinal plants were extracted, such as the average annual temperature-19.4-24.2 ℃, annual average precipitation 17-4 088 mm, annual average sunshine 124.2-171.6 W·m~(-2). The main soil types were black calcareous soil, thin layer soil, chestnut soil and so on. Based on 337 sampling points, the largest ecological similarity area of Tibetan medicine across the country was obtained through ecological similarity analysis. In addition to Tibet and Qinghai provinces and Tibetan Autonomous Prefectures in Sichuan, Gansu, and Yunnan provinces, Jiuquan city and Linxia county in Gansu province, Panzhihua and Ya'an in Sichuan province, and Xinjiang, Inner Mongolia, and Shanxi provinces also had larger suitable cultivation areas. In addition, by analyzing the current situation of Tibetan medicine industry, the research pointed out that there were some problems such as unreasonable development and utilization of resources, lack of standards and norms, weak basic research and imperfect industrial system, and made corresponding countermeasures for sustainable development of resources, formulation of standards and specifications, promotion of medicine through science and technology, expansion of domestic and foreign markets, etc. This study provided the basis for guiding the rational layout of production bases, introduction and breeding of plant Tibetan medicine nationwide, laying the foundation for the scientific and standardized production of high-quality Tibetan medicine, clarifying the development direction of Tibetan medicine industry, and providing ideas for the development strategy of Tibetan medicine and other national medicine industry.


Assuntos
Desenvolvimento Industrial , Medicina Tradicional Tibetana , China , Solo , Tibet
10.
Sydowia ; 71: 141-245, 2019 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-31975743

RESUMO

Thirteen new species are formally described: Cortinarius brunneocarpus from Pakistan, C. lilacinoarmillatus from India, Curvularia khuzestanica on Atriplex lentiformis from Iran, Gloeocantharellus neoechinosporus from China, Laboulbenia bernaliana on species of Apenes, Apristus, and Philophuga (Coleoptera, Carabidae) from Nicaragua and Panama, L. oioveliicola on Oiovelia machadoi (Hemiptera, Veliidae) from Brazil, L. termiticola on Macrotermes subhyalinus (Blattodea, Termitidae) from the DR Congo, Pluteus cutefractus from Slovenia, Rhizoglomus variabile from Peru, Russula phloginea from China, Stagonosporopsis flacciduvarum on Vitis vinifera from Italy, Strobilomyces huangshanensis from China, Uromyces klotzschianus on Rumex dentatus subsp. klotzschianus from Pakistan. The following new records are reported: Alternaria calendulae on Calendula officinalis from India; A. tenuissima on apple and quince fruits from Iran; Candelariella oleaginescens from Turkey; Didymella americana and D. calidophila on Vitis vinifera from Italy; Lasiodiplodia theobromae causing tip blight of Dianella tasmanica 'variegata' from India; Marasmiellus subpruinosus from Madeira, Portugal, new for Macaronesia and Africa; Mycena albidolilacea, M. tenuispinosa, and M. xantholeuca from Russia; Neonectria neomacrospora on Madhuca longifolia from India; Nothophoma quercina on Vitis vinifera from Italy; Plagiosphaera immersa on Urtica dioica from Austria; Rinodina sicula from Turkey; Sphaerosporium lignatile from Wisconsin, USA; and Verrucaria murina from Turkey. Multi-locus analysis of ITS, LSU, rpb1, tef1 sequences revealed that P. immersa, commonly classified within Gnomoniaceae (Diaporthales) or as Sordariomycetes incertae sedis, belongs to Magnaporthaceae (Magnaporthales). Analysis of a six-locus Ascomycota-wide dataset including SSU and LSU sequences of S. lignatile revealed that this species, currently in Ascomycota incertae sedis, belongs to Pyronemataceae (Pezizomycetes, Pezizales).

11.
Zhongguo Zhong Yao Za Zhi ; 44(21): 4772-4780, 2019 Nov.
Artigo em Zh | MEDLINE | ID: mdl-31872677

RESUMO

The shortage of new cannabis varieties with low THC and high CBD content and irregular planting techniques have become the bottleneck for he development of non-psychoactive medicinal cannabis industry. Based on the cannabis germplasm resources,this paper proposes strategies for breeding high CBD content,seed-type and high-efficiency,dwarf non-psychoactive medicinal cannabis varieties through molecular marker development,assisted breeding,genetic engineering breeding and traditional breeding. According to the suitable ecological factors of non-psychoactive medicinal cannabis,the CBD content and grain yield of non-psychoactive medicinal cannabis can be improved by regulating the nutritional structure and illumination properties of non-psychoactive medicinal cannabis,scientific harvesting and storage. At the same time,in order to further accelerate the application of non-psychoactive medicinal cannabis,we can accelerate the selection of new varieties of non-psychoactive medicinal cannabis by mining genetic information of cannabis,and strengthen the application of information technology and automation of modern agriculture in the production of non-psychoactive medicinal cannabis. Provide basis for the cultivation and wide application of new non-psychoactive medicinal cannabis varieties with high quality and high yield.


Assuntos
Canabidiol/análise , Cannabis , Maconha Medicinal , Agricultura
12.
Int J Med Sci ; 15(11): 1179-1186, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-30123055

RESUMO

Breast cancer is a major cause of cancer mortality amongst women. Chemokine (C-C motif) ligand 4 is encoded by the CCL4 gene; specific CCL4 gene polymorphisms are related to the risks and prognoses of various diseases. In this study, we examined whether CCL4 gene single nucleotide polymorphisms (SNPs) predict the risk and progression of breast cancer. Between 2014 and 2016, we recruited 314 patients diagnosed with breast cancer and a cohort of 209 healthy participants (controls) without a history of cancer. Genotyping of the CCL4 rs1634507, rs10491121 and rs1719153 SNPs revealed no significant between-group differences for these polymorphisms. However, amongst luminal A and luminal B subtypes, compared with patients with the AA genotype, those carrying the AG genotype at SNP rs10491121 were less likely to develop lymph node metastasis. In addition, compared with AA carriers, those carrying the AG + GG genotype at SNP rs10491121 were at lower risk of developing distant metastasis, while the presence of the AT genotype at SNP rs1719153 increased the likelihood of pathologic grade (G3 or G4) disease. Variations in the CCL4 gene may help to predict breast cancer progression and metastasis.


Assuntos
Neoplasias da Mama/genética , Quimiocina CCL4/genética , Metástase Linfática , Polimorfismo de Nucleotídeo Único , Adulto , Neoplasias da Mama/patologia , Estudos de Casos e Controles , Progressão da Doença , Feminino , Predisposição Genética para Doença , Genótipo , Humanos , Pessoa de Meia-Idade , Adulto Jovem
13.
Int J Med Sci ; 15(6): 580-586, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-29725248

RESUMO

Breast cancer is a major cause of cancer mortality worldwide. High-mobility group box protein 1 (HMGB1) is a ubiquitous nuclear protein found in all mammal eukaryotic cells that participates in tumor progression, migration and metastasis. HMGB1 overexpression has been indicated in breast cancer patients. However, scant information is available regarding the association between HMGB1 single nucleotide polymorphisms (SNPs) and the risk or prognosis of breast cancer. We report on the association between 4 SNPs of the HMGB1 gene (rs1360485, rs1045411, rs2249825 and rs1412125) and breast cancer susceptibility as well as clinical outcomes in 313 patients with breast cancer and in 217 healthy controls. Patients with one G allele in the rs1360485 or rs2249825 domains are likely to progress to T2 tumor and lymph node metastasis. In addition, the presence of one G allele in SNPs rs1360485 or rs2249825 was associated with a higher risk of progressing to T2 tumor and distant metastasis amongst HER2-enriched and triple-negative breast cancer (TNBC) tumors compared with luminal A and luminal B tumors. Furthermore, having one C allele in the rs1412125 domain increased the risk of pathologic grade 3 disease in HER2-enriched and TNBC tumors. Our results indicate that genetic variations in the HMGB1 gene may serve as an important predictor of breast cancer progression and metastasis.


Assuntos
Biomarcadores Tumorais/genética , Neoplasias da Mama/genética , Predisposição Genética para Doença , Proteína HMGB1/genética , Adulto , Alelos , Neoplasias da Mama/epidemiologia , Neoplasias da Mama/patologia , Progressão da Doença , Feminino , Genótipo , Humanos , Metástase Linfática , Pessoa de Meia-Idade , Polimorfismo de Nucleotídeo Único , Prognóstico , Receptor ErbB-2/genética , Fatores de Risco
14.
Zhongguo Zhong Yao Za Zhi ; 41(20): 3773-3781, 2016 Oct.
Artigo em Zh | MEDLINE | ID: mdl-28929655

RESUMO

Panax notoginseng is a commonly used traditional Chinese medicine with blood activating effect while has continuous cropping obstacle problem in planting process. In present study, a semimicroextraction method with water-saturated n-butanol on 0.1 g notoginseng sample was established with good repeatability (RSD<2.5%) and 9.6%-20.6% higher extraction efficiency of seven saponins than the conventional method. A total of 16 characteristic peaks were identified by LC-MS-IT-TOF, including eight 20(S)-protopanaxatriol (PPT) type saponins and eight 20(S)-protopanaxadiol (PPD) type saponins. The established method was utilized to evaluate the quality of notoginseng samples cultivated by manual intervened methods to overcome continuous cropping obstacles.As a result, HPLC fingerprint similarity, content of Fa and ratio of notoginsenoside K and notoginsenoside Fa (N-K/Fa) were found out to be as valuatable markers of the quality of samples in continuous cropping obstacle research, of which N-K/Fa could also be applied to the analysis of notoginseng samples with different growth years.Notoginseng samples with continuous cropping obstacle had HPLC fingerprint similarity lower than 0.87, in consistent with normal sample, and had significant lower content of notoginsenoside Fa and significant higher N-K/Fa (2.35-4.74) than normal group (0.45-1.33). All samples in the first group with manual intervention showed high similarity with normal group (>0.87), similar content of common peaks and N-K/Fa (0.42-2.06). The content of notoginsenoside K in the second group with manual intervention was higher than normal group. All samples except two displayed similarity higher than 0.87 and possessed content of 16 saponins close to normal group. The result showed that notoginseng samples with continuous cropping obstacle had lower quality than normal sample. And manual intervened methods could improve their quality in different levels.The method established in this study was simple, fast and accurate, and the markers may provide new guides for quality control in continuous cropping obstacle research of notoginseng.


Assuntos
Agricultura/métodos , Panax notoginseng/química , Saponinas/análise , Cromatografia Líquida de Alta Pressão , Medicamentos de Ervas Chinesas/química , Medicina Tradicional Chinesa , Sapogeninas
15.
Sichuan Da Xue Xue Bao Yi Xue Ban ; 46(6): 842-5, 2015 Nov.
Artigo em Zh | MEDLINE | ID: mdl-26867318

RESUMO

OBJECTIVE: To explore the protective effect and its mechanism of B7-H4 on the immuno hepatic injury. METHODS: The immuno hepatic injury was induced by Concanavalin A (Con A). Sixty KM mice were randomly divided into 4 groups with 15 mice in each group: Group A (saline), Group B (pcDNA3.1-mB7-H4-Fc), Group C (pcDNA3.1), Group D (Con A). One day before the injection of Con A (25 mg/kg), the mice in Group B and Group C received the injection of 100 pg pcDNA3.1-mB7-H4-Fc and 100 microg pcDNA3.1 respectively. The blood samples were collected at 12 h, 24 h and 48 h after Con A injection, the levels of ALT, AST, IL-4 and IFN-gamma were measured. Five mice in each group were sacrificed at the above 3 time points, the liver tissue were harvested for histopathological detection. RESULTS: After Con A injection, the level of ALT in Group B, C, and D were higher than that in Group A. The level of ALT in Group B was lower than that in Group C and D. The significant difference was found between Group B and Group C. The hepatic injury of Group B was less serious than that of Group C and D. CONCLUSION: B7-H4 may have protection on the immune injury of liver induced by Con A.


Assuntos
Doença Hepática Induzida por Substâncias e Drogas/tratamento farmacológico , Concanavalina A/efeitos adversos , Inibidor 1 da Ativação de Células T com Domínio V-Set/farmacologia , Animais , Doença Hepática Induzida por Substâncias e Drogas/imunologia , Camundongos , Substâncias Protetoras/farmacologia
16.
Fa Yi Xue Za Zhi ; 31(4): 266-8, 2015 Aug.
Artigo em Zh | MEDLINE | ID: mdl-26665878

RESUMO

OBJECTIVE: To investigate the expression of hyperpolarization-activated cyclic nucleotide-gated cation channel 4 (HCN4) and connexin43 (Cx43) in the sinoatrial node of electric shock death. METHODS: As experimental group, 34 cases of electric shock death who had definite current mark evidence were selected from pathology department of Xuzhou Medical College from 2010 to 2013. As the control group, 20 cases of fatal severe craniocerebral injury in traffic accidents were chosen. The expressions of HCN4 and Cx43 in the sinoatrial node were observed by immunohistochemical technology. RESULTS: HCN4 positive cells expressed in the cell membrane and cytoplasm of the sinoatrial node. Cx43 positive cells expressed in the cell membrane and cytoplasm of T cells and myocardial cells. The expression of HCN4 was significantly higher than that of the control group (P < 0.05) and the expression of Cx43 was significantly lower than that of the control group (P < 0.05). CONCLUSION: The changes of HCN4 and Cx43 expressions in the sinoatrial node illustrate electric shock death might be related to the abnormalities of cardiac electrophysiology and conduction.


Assuntos
Conexina 43/metabolismo , Canais Disparados por Nucleotídeos Cíclicos Ativados por Hiperpolarização/metabolismo , Nó Sinoatrial/fisiopatologia , Canais de Cátion Regulados por Nucleotídeos Cíclicos , Frequência Cardíaca , Imuno-Histoquímica/métodos , Miocárdio/metabolismo , Miócitos Cardíacos , Nó Sinoatrial/metabolismo
17.
Comb Chem High Throughput Screen ; 27(13): 1930-1937, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38357942

RESUMO

OBJECTIVE: To investigate the short-term efficacy and safety of Yunke (technetium-99 conjugated methylene diphosphonate) combined with pulsed electromagnetic field (PEMF) and Gukang capsule in the treatment of postmenopausal osteoporosis (PMOP). METHODS: A total of 112 patients with PMOP who received treatment in the Department of Nuclear Medicine of the hospital from January 2019 to June 2020 were selected and randomly divided into 4 groups of 28 patients each. Group A received Yunke and PEMFs, group B received Gukang capsules and PEMFs, group C received Yunke and Gukang capsules and PEMFs, and group D received PEMFs. All groups were given adequate amounts of calcium and active vitamin D. Intervention 2 sessions of 3 months each. Outcome measures were bone mineral density (BMD) and pain improvement. RESULTS: Compared with 1 course of treatment, the symptoms of bone pain were relieved more significantly after 2 courses of treatment in group A (50.0% vs. 64.3%), group B (46.4% vs. 64.3%), group C (78.6% vs. 92.9%) and group D (21.4% vs. 28.6%) (P < 0.05). After 2 courses of treatment, bone pain symptoms were less relieved in group A (96.4% vs. 64.3%), group B (96.4% vs. 64.3%), and group D (96.4% vs. 28.6%) compared with group C (P < 0.05). Compared with group C, BMD values of L4 vertebrae and femoral neck were significantly decreased in groups A, B, and D (P < 0.05). Compared with those before treatment, BMD of L4 vertebrae and femoral neck increased significantly in groups A, B, C, and D after 2 courses of treatment (P < 0.05). CONCLUSION: Yunke combined therapy can effectively relieve the pain symptoms, increase BMD, and reduce the risk of fracture in patients with PMOP in a short period, which is an effective method for the treatment of PMOP.


Assuntos
Densidade Óssea , Osteoporose Pós-Menopausa , Humanos , Feminino , Osteoporose Pós-Menopausa/tratamento farmacológico , Osteoporose Pós-Menopausa/diagnóstico por imagem , Pessoa de Meia-Idade , Densidade Óssea/efeitos dos fármacos , Idoso , Medronato de Tecnécio Tc 99m , Conservadores da Densidade Óssea/química , Compostos Radiofarmacêuticos/química
18.
World J Clin Cases ; 12(15): 2487-2498, 2024 May 26.
Artigo em Inglês | MEDLINE | ID: mdl-38817221

RESUMO

Fracture of the lateral process of the talus (FLPT) is uncommon in clinical practice and can be easily missed or misdiagnosed. In recent years, as researchers from all over the world have further deepened their research on FLPT, there has been a breakthrough in the classification, and the methods and principles of clinical management have changed accordingly; however, there is still no standardized guideline for the diagnosis and management of FLPT, and there have been few relevant literature review articles related to this kind of fracture in the past at least 5 years. In this article, we review the clinical classification, classification-based therapeutic recommendations, and prognosis of FLPT, with the aim of providing a reference for the clinical diagnosis and management of this infrequent fracture.

19.
Sci Rep ; 14(1): 10049, 2024 05 02.
Artigo em Inglês | MEDLINE | ID: mdl-38698008

RESUMO

Although some studies have reported on the expression and clinical significance of Fascin-1 (FSCN1) in liver cancer, the clinical application and differential diagnosis value of FSCN1 in liver cancer are still unclear. The aim of this study was to analyze the expression level of FSCN1 protein in liver cancer tissues and explore its diagnostic and application value in differentiating between hepatocellular carcinoma (HCC) and intrahepatic cholangiocarcinoma (ICC). The immunehistochemical analysis was used to detect the expression of FSCN1 in 108 cases of HCC, 26 cases of ICC, 23 cases of liver cirrhosis, and 11 cases of normal liver tissues. The differences in the positive expression rate and strong positive expression rate of FSCN1 among different groups were analyzed. The positive rate of FSCN1 in normal liver tissues, liver cirrhosis, HCC, and ICC tissues was 0.0% (0/11), 0.0% (0/23), 13.9% (15/108), and 92.3% (24/26), respectively, while the strong positive rate was 0.0% (0/11), 0.0% (0/23), 0.9% (1/108), and 69.2% (18/26), respectively. Both the positive rate and strong positive rate of FSCN1 in ICC tissues were significantly higher than those in HCC, liver cirrhosis, and normal liver tissues. Additionally, the positive rate of FSCN1 in moderately to poorly differentiated HCC tissues was 18.8% (15/80), significantly higher than in well-differentiated HCC (0.0%, 0/28) (P = 0.031). In liver cancer, the sensitivity, specificity, positive predictive value (PPV), and negative predictive value (NPV) of FSCN1 positive prediction for ICC were 92.3%, 86.1%, 61.5%, and 97.9%, respectively, whereas the sensitivity, specificity, PPV, and NPV of FSCN1 strong positive prediction for ICC were 69.2%, 99.1%, 94.7%, and 93.0%, respectively. These results suggest that FSCN1 may play an important role in the occurrence and progression of liver cancer, and it can be used as a novel diagnostic marker for ICC.


Assuntos
Biomarcadores Tumorais , Carcinoma Hepatocelular , Proteínas de Transporte , Colangiocarcinoma , Neoplasias Hepáticas , Proteínas dos Microfilamentos , Humanos , Neoplasias Hepáticas/diagnóstico , Neoplasias Hepáticas/metabolismo , Proteínas dos Microfilamentos/metabolismo , Proteínas de Transporte/metabolismo , Masculino , Feminino , Pessoa de Meia-Idade , Carcinoma Hepatocelular/diagnóstico , Carcinoma Hepatocelular/metabolismo , Biomarcadores Tumorais/metabolismo , Colangiocarcinoma/diagnóstico , Colangiocarcinoma/metabolismo , Idoso , Adulto , Cirrose Hepática/diagnóstico , Cirrose Hepática/metabolismo , Diagnóstico Diferencial , Neoplasias dos Ductos Biliares/diagnóstico , Neoplasias dos Ductos Biliares/metabolismo , Neoplasias dos Ductos Biliares/patologia , Sensibilidade e Especificidade
20.
Diabetes Metab Syndr Obes ; 17: 959-967, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38435635

RESUMO

Objective: Diabetic kidney disease (DKD) is the leading cause of end-stage renal disease. Metrnl is a secreted protein that plays an important role in kidney disease. The aim of this study was to investigate DKD-related factors and the correlation between serum Metrnl levels and the severity of DKD. Methods: Ninety-six type 2 diabetes mellitus (T2DM) patients and 45 DKD patients were included in the study. A range of parameters were measured simultaneously, including waist-to-hip ratio (WHR), body mass index (BMI), urinary albumin/creatinine ratio (UACR), monocyte-lymphocyte ratio (MLR), albumin/globulin (A/G), liver and kidney function, blood lipid profile, islet function, and others. Subsequently, the related factors and predictive significance of DKD were identified. The correlation between the relevant factors of DKD and serum Metrnl levels with DKD was evaluated. Results: The duration of the disease (OR: 1.12, 95% CI: 1.01-1.24, P=0.031), hypertension (OR: 4.86, 95% CI: 1.16-20.49, P=0.031), fasting blood glucose (OR: 1.23, 95% CI: 1.03-1.48, P=0.025), WHR (OR: 2.53, 95% CI: 1.03-6.22, P=0.044), and MLR (OR: 1.91, 95% CI: 1.18-3.08, P=0.008) are independent risk factors for DKD (P < 0.05). Conversely, A/G (OR: 0.13, 95% CI: 0.02-0.76, P=0.024) and Metrnl (OR: 0.99, 95% CI: 0.98-1.00, P=0.001) have been identified as protective factors against DKD. Furthermore, the level of Metrnl was negatively correlated with the severity of DKD (rs=-0.447, P<0.001). The area under receiver operating characteristic (ROC) curves for the diagnostic accuracy of Metrnl for DKD is 0.765 (95% CI: 0.686-0.844). Conclusion: The duration of the disease, hypertension, fasting blood glucose, WHR, and MLR are major risk factors for DKD. Metrnl and A/G are protective factors for DKD. Serum Metrnl concentrations are inversely correlated with DKD severity.

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