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1.
J Ethnopharmacol ; 302(Pt A): 115700, 2023 Feb 10.
Artículo en Inglés | MEDLINE | ID: mdl-36126782

RESUMEN

ETHNOPHARMACOLOGICAL RELEVANCE: Obesity is a critical threat to global health, and brown adipose tissue (BAT) is a potential target for the treatment of obesity and comorbidities. Xuezhikang Capsule (XZK), an extract of red yeast rice, has remarkable clinical efficacy and is widely used for the treatment of hyperlipidemia and coronary heart disease. However, its modulatory effect on BAT remains unknown. AIM OF THIS STUDY: The aim of this study was to investigate the protective mechanism of XZK in the obese spontaneously hypertensive rat (SHR) model by evaluating the regulatory effect of XZK on the BAT gene profile through transcriptome sequencing. MATERIALS AND METHODS: The SHRs were randomly divided into four groups: the standard chow diet (STD) group, the STD supplemented with 126 mg/kg of XZK group, the high-fat diet (HFD) group, and the HFD supplemented with 126 mg/kg of XZK group. All SHRs were fed for 18 weeks. The metabolic phenotypes, including body weight, fat mass, oral glucose tolerance test (OGTT), and serum glucose and lipid levels, was evaluated, and hematoxylin and eosin staining (H&E) staining was performed to evaluate the adipose tissue histopathological phenotype. Transcriptome sequencing was performed to determine the mechanism by which XZK improves the metabolic phenotype and the expression of key differential expression genes was verified by real-time quantitative polymerase chain reaction (qRT-PCR). RESULTS: XZK inhibited HFD-induced weight gain and adipose tissue remodeling in SHRs and prevented hypertrophy of epididymal adipocytes and maintained the brown fat phenotype. XZK intervention also improved glucose and lipid metabolism in SHRs, as suggested by a reduction in serum triglyceride (TG), low-density cholesterol (LDL-C), and fasting blood glucose (FBG) levels as well as increasing in serum high-density cholesterol (HDL-C) levels. Transcriptome sequencing analysis confirmed the regulatory effect of XZK on the gene expression profile of BAT, and the expression patterns of 45 genes were reversed by the XZK intervention. Additionally, the results of the transcriptome analysis of 10 genes that are important for brown fat function were in line with the results of qRT-PCR. CONCLUSIONS: XZK protected SHRs from HFD-induced obesity, inhibited fat accumulation and improved glucolipid metabolism. Additionally, the protective effect of XZK on the overall metabolism of obese SHRs might partly be related to its regulatory effect on the BAT gene expression profile. These findings might provide novel therapeutic strategies for obesity-related metabolic diseases in traditional Chinese medicine (TCM).


Asunto(s)
Medicamentos Herbarios Chinos , Obesidad , Animales , Ratas , Tejido Adiposo Pardo/efectos de los fármacos , Tejido Adiposo Pardo/metabolismo , Colesterol , Dieta Alta en Grasa , Glucosa , Enfermedades Metabólicas/prevención & control , Ratones Endogámicos C57BL , Obesidad/complicaciones , Obesidad/tratamiento farmacológico , Obesidad/metabolismo , Ratas Endogámicas SHR , Transcriptoma , Medicamentos Herbarios Chinos/farmacología , Modelos Animales de Enfermedad , Humanos , Ratones
2.
J Ethnopharmacol ; 293: 115329, 2022 Jul 15.
Artículo en Inglés | MEDLINE | ID: mdl-35490901

RESUMEN

ETHNOPHARMACOLOGICAL RELEVANCE: Salvia miltiorrhiza Bunge is a bulk medicinal material used in traditional Chinese medicine, that can cure cardiovascular diseases, neurasthenia, and other conditions. Sweating is a frequently used method of processing S. miltiorrhiza for medical applications. We previously demonstrated changes to the metabolic profile of linoleic acid, glyoxylate, and dicarboxylate after Sweating. However, this alteration has not been explained at the molecular level. MATERIALS AND METHODS: Fresh roots of Salvia miltiorrhiza Bunge were treated by the Sweating processing, and then the tandem mass tag technique was used to compare the proteome difference between Sweating S. miltiorrhiza and non-Sweating S. miltiorrhiza. RESULTS: We identified a total of 850 differentially expressed proteins after Sweating treatment in S. miltiorrhiza, including 529 upregulated proteins and 321 downregulated proteins. GO enrichment analysis indicated that these differentially expressed proteins are involved in external encapsulating structure, cell wall, oxidoreductase activity, ligase activity, and others. Further analysis showed that CYP450, the pathogenesis-related protein Bet v 1 family, and the peroxidase domain were the major protein domains. KEGG enrichment identified 18 pathways, of which phenylpropanoid biosynthesis is the most important one related to the metabolite profile and is the principal chemical component of S. miltiorrhiza. CONCLUSION: This study addressed potential molecular mechanisms in S. miltiorrhiza after Sweating, and the findings provide reasons for the changes in biochemical properties and metabolites changes which might cause pharmacological variation at the proteome level.


Asunto(s)
Salvia miltiorrhiza , Medicina Tradicional China , Raíces de Plantas/metabolismo , Proteoma , Proteómica , Salvia miltiorrhiza/química , Sudoración
3.
Front Plant Sci ; 13: 822374, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-35251091

RESUMEN

The lysine crotonylation of histone proteins is a newly identified posttranslational modification with diversified cellular functions. However, there are few reports on lysine crotonylation of non-histone proteins in medicinal plant cells. By using high-resolution liquid chromatography-mass spectrometry (LC-MS) coupled with highly sensitive-specific immune-affinity antibody analysis, a whole crotonylation proteome analysis of Dendrobium huoshanense was performed. In total, 1,591 proteins with 4,726 lysine crotonylation sites were identified; among them, 11 conserved motifs were identified. Bioinformatic analyses linked crotonylated proteins to the drought stress response and multiple metabolic pathways, including secondary metabolite biosynthesis, transport and catabolism, energy production and conversion, carbohydrate transport and metabolism, translation, and ribosomal structure and biogenesis. This study contributes toward understanding the regulatory mechanism of polysaccharide biosynthesis at the crotonylation level even under abiotic stress.

4.
Circ Cardiovasc Qual Outcomes ; 15(3): e007923, 2022 03.
Artículo en Inglés | MEDLINE | ID: mdl-35105177

RESUMEN

BACKGROUND: Hypertension is one of the most challenging public health problems worldwide. Previous studies suggested that the Songling Xuemaikang capsule (SXC)-a Chinese herbal formula-was effective for essential hypertension. However, the efficacy of SXC monotherapy for hypertension remains unclear. We aimed to compare the blood pressure (BP)-lowering efficacy and safety of SXC versus losartan in patients with essential hypertension. METHODS: In this multicenter, randomized, double-blind, noninferiority trial in China, patients 18 to 65 years of age with mild essential hypertension were randomly allocated to receive either SXC or losartan for 8 weeks. The primary outcome was the change in sitting diastolic BP from baseline to 8 weeks, with a predefined noninferiority margin of -2.5 mm Hg. RESULTS: Of the 755 patients who entered a 2-week run-in period, 628 patients (327 women and 301 men; mean [SD] age, 52.6 [9.2] years) were randomly assigned to the SXC (n=314) or losartan (n=314) group. The primary analysis based on the intention-to-treat principle showed that the change in diastolic BP from baseline to 8 weeks was similar between the SXC and losartan groups (-7.9 [8.0] versus -8.1 [7.9]). The lower boundary of 95% CI (mean difference, -0.24 [95% CI, -1.51 to 1.03]) was above the margin of -2.5 mm Hg, showing noninferiority. Results were consistent with per-protocol analysis. SXC produced greater improvements in total hypertension symptom score (-5.7 [4.2] versus -5.0 [4.0]; P=0.020) and total cholesterol (-0.1 [1.0] versus 0.1 [1.2]; P=0.025). There were no differences between groups in the other BP and patient-reported outcomes. Incidence and severity of adverse events were similar between groups. CONCLUSIONS: SXC was well tolerated and demonstrated noninferior to losartan in BP lowering in patients with mild hypertension. SXC might be an alternative for mild hypertension, particularly for patients with a preference for natural medicine. REGISTRATION: URL: www.chictr.org.cn; Unique identifier: ChiCTR-IPR-16008108.


Asunto(s)
Medicamentos Herbarios Chinos , Hipertensión , Antihipertensivos/efectos adversos , Presión Sanguínea , Método Doble Ciego , Medicamentos Herbarios Chinos/efectos adversos , Hipertensión Esencial/inducido químicamente , Hipertensión Esencial/diagnóstico , Hipertensión Esencial/tratamiento farmacológico , Femenino , Humanos , Hipertensión/diagnóstico , Hipertensión/tratamiento farmacológico , Lactante , Losartán/efectos adversos , Masculino , Persona de Mediana Edad , Resultado del Tratamiento
5.
Sci Rep ; 10(1): 19524, 2020 11 11.
Artículo en Inglés | MEDLINE | ID: mdl-33177654

RESUMEN

Salvia miltiorrhiza has numerous compounds with extensive clinical application. "Sweating", a processing method of Traditional Chinese Medicine (TCM), results in great changes in pharmacology and pharmacodynamics. Previously, chromatogram of 10 characteristic metabolites in S. miltiorrhiza showed a significant difference after "Sweating". Due to the complexity of TCM, changes in metabolites should be investigated metabolome-wide after "Sweating". An untargeted UPLC/MS-based metabolomics was performed to discover metabolites profile variation of S. miltiorrhiza after "Sweating". Multivariate analysis was conducted to screen differential metabolites. Analysis indicated distinct differences between sweated and non-sweated samples. 10,108 substance peaks had been detected altogether, and 4759 metabolites had been identified from negative and positive ion model. 287 differential metabolites were screened including 112 up-regulated and 175 down-regulated and they belong to lipids and lipid-like molecules, and phenylpropanoid and polyketides. KEGG analysis showed the pathway of linoleic acid metabolism, and glyoxylate and dicarboxylate metabolism were mainly enriched. 31 and 49 identified metabolites were exclusively detected in SSM and NSSM, respectively, which mainly belong to carboxylic acids and derivatives, polyketides and fatty acyls. By mapping tanshinones and salvianolic acids to 4759 identified metabolites library, 23 characteristic metabolites had been identified, among which 11 metabolites changed most. We conclude that "Sweating'' has significant effect on metabolites content and composition of S. miltiorrhiza.


Asunto(s)
Medicamentos Herbarios Chinos/metabolismo , Medicina Tradicional China/métodos , Salvia miltiorrhiza/química , Salvia miltiorrhiza/metabolismo , Abietanos/metabolismo , Alquenos/metabolismo , Cromatografía Líquida de Alta Presión/métodos , Medicamentos Herbarios Chinos/química , Metabolómica/métodos , Análisis Multivariante , Raíces de Plantas/química , Raíces de Plantas/metabolismo , Polifenoles/metabolismo , Espectrometría de Masa por Ionización de Electrospray/métodos
6.
J Ethnopharmacol ; 255: 112738, 2020 Jun 12.
Artículo en Inglés | MEDLINE | ID: mdl-32147479

RESUMEN

ETHNOPHARMACOLOGICAL RELEVANCE: Qian Yang Yu Yin Granule (QYYY) is a Chinese herbal formulation. It is used to treat hypertensive nephropathy for decades in China, but it is unknown that the exact mechanism of QYYY on hypertensive nephropathy. AIMS OF STUDY: The present study was to elucidate its epigenetic mechanism of QYYY on hypertensive nephropathy. MATERIALS AND METHODS: In the current study, HEK293T cells' proliferation induced by Ang II was chosen to observe epigenetic mechanisms of QYYY on renal damage. The cell proliferation was examined by MTT assays and ethynyldeoxyuridine analysis. Cell cycle analysis was performed. After treatment with QYYY, expression of Nicotinamide N-methyltransferase (NNMT), sirtuin1(SIRT1), S-adenosylhomocysteine(SAH), histone H3K4 methylation, and cortactin acetylation(acetyl-cortactin,ac-cortactin) were further investigated by western-blotting and real time PCR. DNA methylation was detected by ELISA. The study also observed the changes of SIRT1, SAH, H3K4 methylation, acetyl-cortactin when NNMT over-expressed by lentivirus transfection. Angiotensin II(Ang II) induced renal damage in spontaneously hypertensive rats(SHR). After eight weeks treatment of QYYY, blood pressure, serum and urine creatinine, and urinary microalbumin(mAlb) were assessed. The concentration of N1 -methylnicotinamide were detected by liquid chromatography with tandem mass spectrometry. The protein of NNMT, ac-cortactin, H3K3me3 were also assessed in vivo. RESULTS: QYYY inhibited HEK293T cells' proliferation, down-regulated the expression of NNMT, SAH, acetyl-cortactin and DNA methylation, up-regulated the expression of SIRT1, histone H3K4 trimethylation(H3K4me3). Over-expression of NNMT increased the expression of SAH and acetyl-cortactin, and reduced the expression of SIRT1 and H3K4me3. The study also demonstrated that QYYY promoted urinary creatinine excretion and reduced serum creatinine and urinary mAlb in SHR. QYYY decreased the concentration of N1 -methylnicotinamide in Ang II group. QYYY decreased the protein of NNMT, ac-cortactin and increased H3K4me3 in vivo. CONCLUSION: The results showed that QYYY alleviated renal impairment of SHR and inhibited HEK293T cells' proliferation induced by Ang II through the pathway of epigenetic mechanism linked to Nicotinamide N-Methyltransferase (NNMT) expression, including histone methylation, DNA methylation and acetyl-cortactin. This study unveiled a novel molecular mechanism by which QYYY controlled the progression of hypertensive nephropathy.


Asunto(s)
Medicamentos Herbarios Chinos/farmacología , Epigénesis Genética/efectos de los fármacos , Células Epiteliales/efectos de los fármacos , Hipertensión/tratamiento farmacológico , Enfermedades Renales/prevención & control , Riñón/efectos de los fármacos , Nicotinamida N-Metiltransferasa/metabolismo , Acetilación , Angiotensina II , Animales , Proliferación Celular/efectos de los fármacos , Cortactina/metabolismo , Metilación de ADN/efectos de los fármacos , Modelos Animales de Enfermedad , Células Epiteliales/enzimología , Células Epiteliales/patología , Células HEK293 , Histonas/metabolismo , Humanos , Hipertensión/complicaciones , Hipertensión/enzimología , Hipertensión/genética , Riñón/enzimología , Riñón/patología , Enfermedades Renales/inducido químicamente , Enfermedades Renales/enzimología , Enfermedades Renales/genética , Masculino , Ratas Endogámicas SHR , Ratas Endogámicas WKY , S-Adenosilhomocisteína/metabolismo , Sirtuina 1/metabolismo
7.
Artículo en Inglés | MEDLINE | ID: mdl-33456490

RESUMEN

Heart failure (HF) has been known as a global health problem, and cardiac remodeling plays an essential role in the development of HF. We hypothesized that YQWY decoction might exert a cardioprotective effect against myocardium inflammation, fibrosis, and apoptosis via activating the interleukin-10 (IL-10)/Stat3 signaling pathway. To test this hypothesis, the HF model in rats was established by pressure overload through the minimally invasive transverse aortic constriction (MTAC). Echocardiography was performed to assess the left ventricular function of rats. Myocardial fibrosis in rats was observed by Masson and Picrosirius red staining, and the degree of myocardial apoptosis was detected via TUNEL staining. In addition, expression levels of IL-10, tumor necrosis factor-α (TNF-α), Stat3 (P-Stat3), P65 (P-P65), CD68, collagen I, TGF-ß, CTGF, Bax, Bcl-2, cleaved caspase-3, and PARP in rat serum and myocardium samples were examined by ELISA, western blot, and immunohistochemistry, respectively. YQWY decoction treatment significantly improved left ventricular function in HF rats, especially in those of the high-dose group (LVEF%: 51.29 ± 5.876 vs. 66.02 ± 1.264, P < 0.01;, LVFS%: 27.75 ± 3.757 vs. 37.76 ± 1.137, P < 0.01). Furthermore, YQWY decoction markedly inhibited MTAC-induced myocardial fibrosis as evidenced by downregulated collagen I, TGF-ß, and CTGF in myocardium and alleviated apoptosis (downregulated caspase-3 and PARP and increased Bcl-2/Bax ratio in cardiomyocytes). In addition, YQWY decoction decreased the level of the proinflammatory cytokine TNF-α in both circulating blood and myocardium and attenuated infiltration of inflammatory cells in heart tissue from HF rats. Most importantly, YQWY decoction suppressed MTAC-induced NF-κB activation and phosphorylated Stat3 by upregulating IL-10 in rat heart tissues. Our study showed that YQWY decoction could attenuate MTAC-induced myocardial inflammation, fibrosis, apoptosis, and reverse the impairment of cardiac function in rats by activating the IL-10/Stat3 signaling pathway and improving myocardium remodeling. Our findings suggested a therapeutic potential of YQWY decoction in HF.

8.
Chin J Nat Med ; 17(10): 746-755, 2019 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-31703755

RESUMEN

To investigate the effect of Yiqi Wenyang (YQWY) decoction on reversing cardiac hypertrophy induced by the transverse aortic constriction (TAC). Wistar rats aged 7-8 weeks were subjected to TAC surgery and then randomly divided into 4 groups (n = 5/group): Sham group, TAC group, low-dose group and high dose group. After 16-week intragastric administration of YQWY decoction, the effect of YQWY decoction on alleviating cardiomyocyte hypertrophy was examined by transthoracic echocardiography (TTE), hematoxylin/eosin (HE), wheat germ agglutinin (WGA) staining, enzyme linked immunosorbent assay (ELISA), Western blot (WB), immunohistochemistry (IHC) and immunofluorescence (IF), respectively. The results showed significant differences in left ventricle volume-diastole/systole (LV Vol d/s), N-terminal pro-B-type brain natriuretic peptide (NT-proBNP) (P < 0.01), Ejection Fraction (EF), LV mass and fractional shortening (FS) (P < 0.05) between YQWY-treated group and TAC group. HE and WGA staining showed that treatment with YQWY decoction dramatically prevented TAC-induced cardiomycyte hypertrophy. Moreover, the results of WB, IHC and IF indicated that administration of YQWY could suppress the expressions of cardiac hypertrophic markers, which included the atrial natriuretic peptide (ANP), BNP and myosin heavy chain 7 (MYH7) (P < 0.05) and inhibit phosphorylation of GATA binding protein 4 (P-GATA4) (P < 0.05), phosphorylation of extracellular signal-regulated kinase (P-ERK) (P < 0.05), phosphorylation of P38 mitogen activated protein kinase (P-P38) (P < 0.05) and phosphorylation of c-Jun N-terminal kinase (P-JNK) (P < 0.05). Thus, we concluded that YQWY decoction suppressed cardiomyocyte hypertrophy and reversed the impaired heart function, and the curative effects of YQWY decoction were associated with the decreased phosphorylation of GATA4 and mitogen activated protein kinases (MAPKs), as well as the reduced expression of the downstream targets of GATA4, including ANP, BNP, and MYH7.


Asunto(s)
Cardiomegalia/tratamiento farmacológico , Cardiomegalia/metabolismo , Medicamentos Herbarios Chinos/administración & dosificación , Factor de Transcripción GATA4/metabolismo , Proteínas Quinasas Activadas por Mitógenos/metabolismo , Animales , Aorta/cirugía , Cardiomegalia/genética , Factor de Transcripción GATA4/genética , Humanos , Masculino , Proteínas Quinasas Activadas por Mitógenos/genética , Cadenas Pesadas de Miosina/genética , Cadenas Pesadas de Miosina/metabolismo , Péptido Natriurético Encefálico/genética , Péptido Natriurético Encefálico/metabolismo , Fragmentos de Péptidos/genética , Fragmentos de Péptidos/metabolismo , Fosforilación , Ratas , Ratas Wistar
9.
Front Pharmacol ; 10: 1542, 2019.
Artículo en Inglés | MEDLINE | ID: mdl-31920681

RESUMEN

Background: Sodium tanshinone IIA sulfonate (STS) injection, the extractive of traditional Chinese medicine Danshen, is supposed to be a supplementary treatment in hypertensive nephropathy. Objectives: To evaluate the efficacy and safety of STS in treatment of hypertensive nephropathy. Methods: We systematically searched China National Knowledge Infrastructure (CNKI), Chinese Scientific Journals Database (VIP), Wan-fang database, Chinese Biomedicine Database (CBM), PubMed, Embase, Web of Science, and Cochrane Library from their inception to December 2018. All studies were screened by two reviewers according to the inclusion and exclusion criteria independently. The Cochrane Collaboration's risk tool was used to assess the methodological quality of the included studies. Reviewer Manager 5.3 was employed for statistical analysis. Results: Sixteen trials involving 1,696 patients were included. The meta-analysis results indicated a combination of STS and angiotensin receptor blockers (ARBs) was more effective than ARB monotherapy in modulating hypertensive nephropathy, as represented by improved estimated glomerular filtration rate (eGFR) [mean difference (MD) = 6.87, 95% CI (4.47, 9.28), P < 0.00001] and reduced 24 h urinary protein [MD = -0.23, 95% CI (-0.27, -0.19), P < 0.00001], serum creatinine (SCr) [MD = -21.74, 95% CI (-24.11, -19.38), P < 0.00001], cystatin-C [MD = -0.16, 95% CI (-0.24, -0.07), P = 0.0003], urinary immunoglobulin G (IgG) [MD = -0.85, 95% CI (-1.11, -0.59), P < 0.00001], and urinary transferrin [MD = -0.61, 95% CI (-1.04, -0.17), P = 0.007]. In addition, the combination therapy had better control in systolic blood pressure (SBP) [MD = -6.53, 95% CI (-8.19, -4.87), P < 0.00001] and diastolic blood pressure (DBP) [MD = -4.14, 95% CI (-5.69, -2.59), P < 0.00001]. Only three trials reported adverse events, and no adverse drug reactions were observed. Conclusions: STS combined with ARBs had a stronger effect on improving renal function in patients with primary hypertensive nephropathy than ARB monotherapy. The combination therapy also provided auxiliary hypotensive effects. Further large-scale, multicenter, and rigorously designed randomized controlled trials (RCTs) should be conducted to confirm our findings.

10.
Biomed Pharmacother ; 102: 212-220, 2018 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-29558718

RESUMEN

The treatment goal in spinal cord injury (SCI) is to repair neurites and suppress cell apoptosis. Panax quinquefolius saponin (PQS) is the major active ingredient of American ginseng and has been demonstrated to have anti-inflammatory and anti-apoptotic roles in various diseases. However, the potential effect of PQS on the pathological process of acute SCI remains unknown. This work tested the effects of PQS on acute SCI and clarified its potential mechanisms. PQS treatment ameliorated the damage to spinal tissue and improved the functional recovery after SCI. PQS treatment inhibited endoplasmic reticulum (ER) stress and the associated apoptosis after acute SCI. PQS further abolished the triglyceride (TG)-induced ER stress and associated apoptosis in neuronal cultures. PQS appears to inhibit the ER-stress-induced neurite injury in PC12 cells. Our results suggest that PQS is a novel therapeutic agent for acute central nervous system injury.


Asunto(s)
Apoptosis/efectos de los fármacos , Estrés del Retículo Endoplásmico/efectos de los fármacos , Neuritas/efectos de los fármacos , Recuperación de la Función/efectos de los fármacos , Saponinas/uso terapéutico , Traumatismos de la Médula Espinal/tratamiento farmacológico , Enfermedad Aguda , Animales , Femenino , Neuritas/metabolismo , Neuritas/patología , Panax/química , Ratas Sprague-Dawley , Saponinas/aislamiento & purificación , Traumatismos de la Médula Espinal/metabolismo , Traumatismos de la Médula Espinal/patología
11.
New Phytol ; 217(1): 261-276, 2018 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-28940606

RESUMEN

The glandular secretory trichomes (GSTs) on Artemisia annua leaves have the capacity to secrete and store artemisinin, a compound which is the most effective treatment for uncomplicated malaria. An effective strategy to improve artemisinin content is therefore to increase the density of GSTs in A. annua. However, the formation mechanism of GSTs remains poorly understood. To explore the mechanisms of GST initiation in A. annua, we screened myeloblastosis (MYB) transcription factor genes from a GST transcriptome database and identified a MIXTA transcription factor, AaMIXTA1, which is expressed predominantly in the basal cells of GST in A. annua. Overexpression and repression of AaMIXTA1 resulted in an increase and decrease, respectively, in the number of GSTs as well as the artemisinin content in transgenic plants. Transcriptome analysis and cuticular lipid profiling showed that AaMIXTA1 is likely to be responsible for activating cuticle biosynthesis. In addition, dual-luciferase reporter assays further demonstrated that AaMIXTA1 could directly activate the expression of genes related to cuticle biosynthesis. Taken together, AaMIXTA1 regulated cuticle biosynthesis and prompted GST initiation without any abnormal impact on the morphological structure of the GSTs and so provides a new way to improve artemisinin content in this important medicinal plant.


Asunto(s)
Artemisia annua/metabolismo , Artemisininas/metabolismo , Factores de Transcripción/metabolismo , Tricomas/metabolismo , Secuencia de Aminoácidos , Artemisia annua/genética , Artemisia annua/ultraestructura , Regulación de la Expresión Génica de las Plantas , Especificidad de Órganos , Filogenia , Epidermis de la Planta/genética , Epidermis de la Planta/metabolismo , Epidermis de la Planta/ultraestructura , Proteínas de Plantas/genética , Proteínas de Plantas/metabolismo , Plantas Modificadas Genéticamente , Alineación de Secuencia , Factores de Transcripción/genética , Tricomas/genética , Tricomas/ultraestructura
12.
Zhongguo Zhong Yao Za Zhi ; 42(10): 1837-1841, 2017 May.
Artículo en Chino | MEDLINE | ID: mdl-29090539

RESUMEN

Vascular cognitive impairment (VCI) is a kind of syndrome from mild cognitive impairment to dementia, which is caused by different vascular factors. It can be prevented and delayed the progress of VCI and even reversed cognitive impairment before it progresses to vascular dementia by early diagnosis and intervention. Many experimental and clinical studies have confirmed that traditional Chinese medicine (TCM) monomer, effective fraction, compound preparation,etc can improve vascular cognitive function. Our paper summarizes the research progress in the concept, pathogenesis, cellular and molecular mechanisms, and TCM treatment of VCI.


Asunto(s)
Trastornos del Conocimiento/terapia , Disfunción Cognitiva/terapia , Demencia Vascular/terapia , Medicina Tradicional China , Humanos
13.
BMC Complement Altern Med ; 15: 81, 2015 Mar 25.
Artículo en Inglés | MEDLINE | ID: mdl-25886843

RESUMEN

BACKGROUND: Qian Yang Yu Yin Granule (QYYYG), a traditional Chinese herbal medicine, has been indicated for renal damage in hypertension for decades in China, but little remains known regarding its underlying molecular mechanism. Therefore, we performed the current study in order to investigate the underlying molecular mechanism of QYYYG in the treatment of hypertensive renal damage. METHODS: We hypothesize that QYYYG relieves hypertensive renal injury through an angiotensin II (Ang II)-nicotinamide adenine dinucleotide phosphate (NAPDH)-oxidase (NOX)-reactive oxygen species (ROS) pathway. In this study, we investigated the effects of QYYYG-containing serum (QYGS) in human mesangial cells (HMCs) against Ang II-induced cell proliferation, ROS production, and inflammation through the seropharmacological method. RESULTS: We found that QYGS could inhibit cell proliferation in Ang II-treated HMCs. In addition, QYGS considerably suppressed production of ROS, decreased mRNA and protein expression of NAPDH-oxidase 4 (NOX4), p22 (phox) , and activated Ras-related C3 botulinum toxin substrate 1 (GTP-Rac1); as well as counteracted the up-regulation of inflammatory markers including tumor necrosis factor-α (TNF-α), nuclear factor-κB (NF-κB) p65, and interleukin 6 (IL-6). These effects were further confirmed in HMCs transfected with specific small interfering RNA (siRNA) targeting NOX4. CONCLUSIONS: Taken together, these results suggest that a NOX4-dependent pathway plays an important role in regulating the inhibitory effect of QYGS. Our findings provide new insights into the molecular mechanisms of QYYYG and their role in the treatment of hypertensive nephropathy.


Asunto(s)
Angiotensina II/metabolismo , Medicamentos Herbarios Chinos/farmacología , Hipertensión Renal/metabolismo , Inflamación/tratamiento farmacológico , Células Mesangiales/efectos de los fármacos , NADPH Oxidasas/metabolismo , Especies Reactivas de Oxígeno/metabolismo , Animales , Proliferación Celular/efectos de los fármacos , China , Medicamentos Herbarios Chinos/administración & dosificación , Medicamentos Herbarios Chinos/uso terapéutico , Humanos , Hipertensión Renal/tratamiento farmacológico , Inflamación/metabolismo , Células Mesangiales/metabolismo , FN-kappa B/metabolismo , Fitoterapia , Polygonum , ARN Interferente Pequeño/farmacología , Ratas Wistar , Factor de Necrosis Tumoral alfa/metabolismo , Regulación hacia Arriba/efectos de los fármacos
14.
J Cardiovasc Pharmacol ; 63(3): 282-9, 2014 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-24609055

RESUMEN

Xuezhikang, purified from red yeast rice, is a traditional Chinese medicine with pleiotropic effects on the cardiovascular system. Oxidative stress plays a crucial role in the dysfunction of pancreas islet in diabetic condition and represents a promising therapeutical target for diabetes mellitus. Therefore, the purpose of this study was to explore the effects and possible mechanisms of xuezhikang on the microenvironment and insulin secretion by pancreatic islets in db/db diabetic mice. Our results showed that xuezhikang decreased the blood glucose level by improving glucose tolerance and insulin secretion in db/db mice. Xuezhikang protected islets from hyperglycemic injury as illustrated by the conserved ß-cell content and microenvironment. Furthermore, xuezhikang potently inhibited the expression of key factors in oxidative stress. In addition, administration of xuezhikang caused an upregulated expression of glucose-sensing apparatus. These observations provide evidence that the influence of xuezhikang on oxidative stress may at least partly account for its protective effects on the microenvironment and insulin secretion function of pancreatic islets in diabetes.


Asunto(s)
Diabetes Mellitus Experimental/tratamiento farmacológico , Medicamentos Herbarios Chinos/farmacología , Islotes Pancreáticos/efectos de los fármacos , Estrés Oxidativo/efectos de los fármacos , Animales , Glucemia/efectos de los fármacos , Diabetes Mellitus Experimental/patología , Insulina/metabolismo , Secreción de Insulina , Islotes Pancreáticos/patología , Masculino , Ratones , Ratones Endogámicos C57BL , Regulación hacia Arriba/efectos de los fármacos
15.
Zhongguo Zhong Xi Yi Jie He Za Zhi ; 33(1): 35-9, 2013 Jan.
Artículo en Chino | MEDLINE | ID: mdl-23596783

RESUMEN

OBJECTIVE: To study the effects of ApoE gene polymorphism on anti-inflammatory action of Xuezhikang Capsule. METHODS: One hundred and two patients with hyperlipidemia (as the treated group) and one hundred healthy volunteers (as the control group) were enrolled in the case-control study. Total DNA of the peripheral blood was extracted and ApoE genotypes were determined by PCR sequence analysis. The serum levels of tumor necrosis factor alpha (TNF-alpha), interleukin 6 (IL-6), and high sensitivity C reactive protein (hs-CRP)were measured in all subjects. The changes of TNF-alpha, IL-6, and hs-CRP were detected before and after 6-week Xuezhikang Capsule treatment, thus analyzing the correlation between ApoE gene polymorphism and changes of each inflammatory factor. RESULTS: The frequency of E3/3 genotype was 86% (86/100 cases)in the control group, significantly higher than that of the treated group (62.7%, 64/102 cases). The frequency of E3/4 genotype was 6% (6/100 cases) in the control group, significantly lower than that of the treated group (21.6%, 22/102 cases; both P < 0.05). Compared with the control group, the serum levels of TNF-alpha, IL-6, and hs-CPR were higher in the treated group before treatment (P < 0.05). In hyperlipidemia patients with E3/4 + E4/4 genotype, the serum level of TNF-alpha was higher than that of E3/3 genotype (P < 0.05); the serum level of IL-6 was higher than that of E2/E2 + E2/E3 genotype (P < 0.05); the serum level of hs-CRP was higher than that of E2/E2 + E2/E3 and E3/E3 genotype (P < 0.05). But there was no statistical difference in the serum levels of TNF-alpha, IL-6, or hs-CPR between E3/3 and E2/E2 + E2/E3 genotype. After 6-week intervention of Xuezhikang Capsule, the serum levels of TNF-alpha, IL-6, and hs-CRP were lower in the treated group (P < 0.05), but the serum levels of TNF-alpha and IL-6 were still higher than those of the control group (P < 0.05). But there was no statistical difference in the decrement of TNF-alpha, IL-6, or hsCRP among E2/E2 + E2/E3, E3/E3, or E3/4 + E4/4 genotypes (P > 0.05). CONCLUSIONS: The distribution of ApoE gene polymorphism is different between the hyperlipidemia patients and the healthy people. Chronic inflammatory reactions exist in hyperlipidemia patients, especially in those with e4 allele. Xuezhikang Capsule showed anti-inflammatory effects, but ApoE gene polymorphism did not affect its effects.


Asunto(s)
Antiinflamatorios/uso terapéutico , Apolipoproteínas E/genética , Medicamentos Herbarios Chinos/uso terapéutico , Hiperlipidemias/tratamiento farmacológico , Adulto , Anciano , Proteína C-Reactiva/metabolismo , Estudios de Casos y Controles , Femenino , Genotipo , Humanos , Hiperlipidemias/genética , Interleucina-6/sangre , Masculino , Persona de Mediana Edad , Fitoterapia , Polimorfismo Genético , Factor de Necrosis Tumoral alfa/sangre
16.
Zhongguo Zhong Yao Za Zhi ; 38(20): 3583-6, 2013 Oct.
Artículo en Chino | MEDLINE | ID: mdl-24490577

RESUMEN

To observe the effect of Jiangzhikangyanghua Mixture on high-sensitivity CRP (hs-CRP) and vascular endothelial functions of essential hypertension (EH) patients. In this study, 72 cases of out-patients with EH were selected from department of cardiology of Wujin hospital of traditional Chinese Medicine, and randomly divided into the control group (n= 36, amlodipine 5 mg qd + valsartan 80 mg qd) and the test group (n =36 amlodipine 5 mg qd + valsartan 80 mg qd + Jiangzhikangyanghua mixture 20 mL tid). The contents of hs-CRP, ET-1 and NO were measured before and after treatment for two months. The result showed that the contents of hs-CRP, ET-1 in both groups reduced (P <0. 05) , while the test group show a more significant reduction than the control group (P <0. 05). After the treatment, the content of NO raised in both group, while the test group show a more significant increase than that of the control group (P <0. 05). This study indicated that Jiangzhi Kangyanghua mixture could reduce the contents of hs-CRP and ET-1 and raise NO of EH patients.


Asunto(s)
Antihipertensivos/administración & dosificación , Proteína C-Reactiva/metabolismo , Medicamentos Herbarios Chinos/administración & dosificación , Endotelio Vascular/fisiopatología , Hipertensión/tratamiento farmacológico , Anciano , Presión Sanguínea/efectos de los fármacos , Endotelina-1/metabolismo , Endotelio Vascular/efectos de los fármacos , Femenino , Humanos , Hipertensión/metabolismo , Hipertensión/fisiopatología , Masculino , Persona de Mediana Edad
17.
Zhongguo Zhong Xi Yi Jie He Za Zhi ; 31(9): 1201-4, 2011 Sep.
Artículo en Chino | MEDLINE | ID: mdl-22013795

RESUMEN

OBJECTIVE: To study the correlation between Apo E gene polymorphism and patients with coronary heart disease (CHD) of phlegm-stasis syndrome (PSS). METHODS: 78 CHD patients were assigned to PSS (49 cases) and non-phlegm-stasis syndrome (NPSS). Polymorphisms of Apo E gene in 78 CHD patients and 100 healthy subjects were detected by complete DNA sequencing. RESULTS: Five gene types as E3/3, E4/4, E2/ 3, E2/4, and E3/4 were detected in the two groups. The frequencies of genotype E3/3 and epsilon 3 allele were significantly lower in CHD patients than in the healthy subjects (P<0.01). But the frequencies of genotype E3/4 and epsilon 4 allele were significantly higher in CHD patients than in the healthy subjects (P<0.01). In CHD patients, the frequencies of genotype E2/4 + E3/4 + E4/4 and epsilon 4 allele were higher in PSS than in NPSS. CONCLUSIONS: Apo E epsilon 4 allele was a susceptible allele to CHD, which was closely correlated to CHD PSS. It was inferred that it might be one of main susceptible alleles for CHD PSS.


Asunto(s)
Apolipoproteínas E/genética , Enfermedad Coronaria/diagnóstico , Enfermedad Coronaria/genética , Anciano , Alelos , Secuencia de Bases , Estudios de Casos y Controles , Femenino , Genotipo , Humanos , Masculino , Medicina Tradicional China , Persona de Mediana Edad
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