Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 73
Filtrar
Más filtros

País/Región como asunto
Tipo del documento
Intervalo de año de publicación
1.
Medicine (Baltimore) ; 103(3): e36986, 2024 Jan 19.
Artículo en Inglés | MEDLINE | ID: mdl-38241551

RESUMEN

BACKGROUND: Lianhua Qingwen (LHQW) is a proprietary traditional Chinese medicine for the treatment of influenza (FLu). It is composed of 2 prescriptions, Maxing Shigan and Yinqiao, which has antiviral, antibacterial, and immunomodulatory effects. However its clinical suitability has not yet been investigated. OBJECTIVE: This study aimed to evaluate the efficacy and safety of LHQW in the treatment of FLu. METHODS: We searched several databases, including PubMed and China Biomedical Database for literature research, from inception to July 1, 2023. This meta-analysis included RCTs that compared the safety and efficacy of the combination of LHQW and conventional drugs (CD) with CD alone for IFU. The extracted data were analyzed using Revman5.4 software with risk ratio (RR), 95% confidence intervals (CI), and standardized mean difference. RESULTS: Our meta-analysis included 32 articles with 3592 patients. The results showed that the effects of LHQW adjuvant therapy were superior to those of CD (clinical effective rate: RR = 1.22, 95% CI: 1.18-1.26, P < .00001; cure rate: RR = 1.54, 95% CI: 1.35-1.75, P < .00001), and adverse reactions after treatment were significantly lower than those before treatment (RR = 0.70, 95% CI: 0.50-0.98, P = .04). CONCLUSION: This meta-analysis indicates that LHQW combined with CD may be more effective than CD alone for the treatment of FLu.


Asunto(s)
Medicamentos Herbarios Chinos , Gripe Humana , Humanos , Gripe Humana/tratamiento farmacológico , Medicamentos Herbarios Chinos/efectos adversos , Medicina Tradicional China , Terapia Combinada , Resultado del Tratamiento , China
2.
Int J Biol Macromol ; 253(Pt 7): 127411, 2023 Dec 31.
Artículo en Inglés | MEDLINE | ID: mdl-37838131

RESUMEN

This study investigates the effects of heat treatment before high-pressure homogenization (HHPH) and heat treatment after high-pressure homogenization (HPHH) at different pressures (20, 60, and 100 MPa) on the structural and emulsification properties of soy protein isolate (SPI). The results indicate that HHPH treatment increases the surface hydrophobicity (H0) of the SPI, reduces ß-fold and irregular curls, leading to the formation of soluble aggregates, increased adsorbed protein content, and subsequent improvements in emulsification activity index (EAI) and emulsion stability index (ESI). In contrast, the HPHH treatment promoted the exchange of SH/SS bonds between protein molecules and facilitated the interaction of basic peptides and ß-subunits, leading to larger particle sizes of the soluble aggregates compared to the HHPH-treated samples. However, excessive aggregation in HPHH-treated aggregates leads to decreased H0 and adsorbed protein content, and increased interfacial tension, negatively affecting the emulsification properties. Compared to the HPHH treatment, HHPH treatment at homogenization pressures of 20 to 100 MPa increases EAI and ESI by 5.81-29.6 % and 5.31-25.9 %, respectively. These findings provide a fundamental basis for soybean protein manufacturers to employ appropriate processing procedures aimed at improving emulsification properties.


Asunto(s)
Calor , Proteínas de Soja , Proteínas de Soja/química , Emulsiones/química , Interacciones Hidrofóbicas e Hidrofílicas , Tamaño de la Partícula
3.
Pharm Biol ; 61(1): 610-620, 2023 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-36999358

RESUMEN

CONTEXT: Ginkgo biloba Linn (Ginkgoaceae) [leaves extract (GBE)] is authorized for the treatment of sudden hearing loss (SHL); however, its clinical feasibility in SHL has not been thoroughly investigated. OBJECTIVE: To evaluate the efficacy and safety of adjuvant GBE in the treatment of SHL. MATERIALS AND METHODS: We used PubMed, EMBASE, Web of Science, Cochrane Library, China National Knowledge Infrastructure, Wanfang, Chinese Scientific Journal Database, China Biomedical Database for literature research, starting from inception to 30 June 2022. The key terms: Ginkgo biloba extract, Sudden Sensorineural Deafness. This meta-analysis contained randomized controlled trials that compared the safety and efficacy of the combination of GBE and general treatments (GT) with GT alone for SHL. The extracted data were analyzed using Revman5.4 software with risk ratio (RR), 95% confidence intervals (CI) and mean difference (MD). RESULTS: Our meta-analysis included 27 articles with a total of 2623 patients. The results revealed that the effects of GBE adjuvant therapy was superior than GT (total effective rate: RR = 1.22, 95% CI: 1.18-1.26, p < 0.00001), the pure tone hearing threshold (MD = 12.29, 95% CI: 11.74-12.85, p < 0.00001) and hemorheology indexes (whole blood high shear viscosity: MD = 1.46, 95% CI: 0.47-2.44, p = 0.004) after treatment were significantly improved compared to non-treatment, while there was no significant difference as for hematocrit (red blood cells) (MD = 4.15, 95% CI: -7.15-15.45, p = 0.47). CONCLUSION: The efficacy of GBE + GT for the treatment of SHL may be more promising than GT alone.


Asunto(s)
Pérdida Auditiva Súbita , Extractos Vegetales , Humanos , Adyuvantes Inmunológicos , Pueblos del Este de Asia , Ginkgo biloba/química , Pérdida Auditiva Súbita/tratamiento farmacológico , Extractos Vegetales/uso terapéutico , Ensayos Clínicos Controlados Aleatorios como Asunto
4.
Chin J Integr Med ; 29(8): 691-698, 2023 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-36477450

RESUMEN

OBJECTIVE: To investigate the mechanism by which Chinese medicine Shengmai Yin (SMY) reverses epithelial-mesenchymal transition (EMT) through lipocalin-2 (LCN2) in nasopharyngeal carcinoma (NPC) cells CNE-2R. METHODS: Morphological changes in EMT in CNE-2R cells were observed under a microscope, and the expressions of EMT markers were detected using quantitative real-time PCR (RT-qPCR) and Western blot assays. Through the Gene Expression Omnibus dataset and text mining, LCN2 was found to be highly related to radiation resistance and EMT in NPC. The expressions of LCN2 and EMT markers following SMY treatment (50 and 100 µ g/mL) were detected by RT-qPCR and Western blot assays in vitro. Cell proliferation, migration, and invasion abilities were measured using colony formation, wound healing, and transwell invasion assays, respectively. The inhibitory effect of SMY in vivo was determined by observing a zebrafish xenograft model with a fluorescent label. RESULTS: The CNE-2R cells showed EMT transition and high expression of LCN2, and the use of SMY (5, 10 and 20 µ g/mL) reduced the expression of LCN2 and reversed the EMT in the CNE-2R cells. Compared to that of the CNE-2R group, the proliferation, migration, and invasion abilities of SMY high-concentration group were weakened (P<0.05). Moreover, SMY mediated tumor growth and metastasis in a dose-dependent manner in a zebrafish xenograft model, which was consistent with the in vitro results. CONCLUSIONS: SMY can reverse the EMT process of CNE-2R cells, which may be related to its inhibition of LCN2 expression. Therefore, LCN2 may be a potential diagnostic marker and therapeutic target in patients with NPC.


Asunto(s)
Transición Epitelial-Mesenquimal , Neoplasias Nasofaríngeas , Animales , Humanos , Carcinoma Nasofaríngeo/tratamiento farmacológico , Carcinoma Nasofaríngeo/genética , Pez Cebra , Proliferación Celular , Línea Celular Tumoral , Neoplasias Nasofaríngeas/tratamiento farmacológico , Neoplasias Nasofaríngeas/genética , Neoplasias Nasofaríngeas/radioterapia , Movimiento Celular , Regulación Neoplásica de la Expresión Génica
5.
Food Funct ; 13(22): 11503-11517, 2022 Nov 14.
Artículo en Inglés | MEDLINE | ID: mdl-36278790

RESUMEN

The main focus of this study was on the protection mechanism of Jerusalem artichoke inulin (DI) against type 2 diabetes mellitus (T2DM) associated with abnormal hepatic lipid metabolism and gut microbiota dysfunction in high-fat diet and streptozotocin-induced diabetic mice. It was determined that the consumption of DI significantly improved the biochemical parameters and physiological indices linked to T2DM, including the reduction in blood glucose, HbA1c, triglyceride, total cholesterol, and low-density lipoprotein cholesterol levels as well as the contents of serum pro-inflammatory cytokines. Supplementation with DI also ameliorated abnormal hepatic lipid metabolism by altering the expression of genes involved in the production and breakdown of lipids and cholesterol. Microbiological analysis showed that DI supplementation resulted in an enrichment of Prevotellaceae UCG-001, Parasutterella, Prevotellaceae UCG-003, and Dubosiella. Metabolomics revealed 89 differential metabolites closely related to DI intervention, and showed that DI supplementation regulated amino acid metabolism (e.g., indole), lipid metabolism (e.g., phosphocholine), cofactor and vitamin metabolism (e.g., cholecalciferol), nucleotide metabolism (e.g., thymine) and the digestive system (e.g., 7-ketolithocholic acid). Overall, Jerusalem artichoke inulin has a remarkable capacity to ameliorate abnormal hepatic lipid metabolism and gut microbiota dysfunction linked to T2DM.


Asunto(s)
Diabetes Mellitus Experimental , Diabetes Mellitus Tipo 2 , Microbioma Gastrointestinal , Helianthus , Ratones , Animales , Inulina/farmacología , Helianthus/química , Metabolismo de los Lípidos , Diabetes Mellitus Tipo 2/tratamiento farmacológico , Diabetes Mellitus Experimental/tratamiento farmacológico , Metaboloma , Dieta Alta en Grasa/efectos adversos , Colesterol , Suplementos Dietéticos
6.
Curr Pharm Des ; 28(23): 1863-1869, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-35674307

RESUMEN

Gliomas are the most common and malignant primary tumors of the central nervous system (CNS). Glioblastomas are the most malignant and aggressive form of primary brain tumors and account for the majority of brain tumor-related deaths. The current standard treatment for gliomas is surgical resection supplemented by postoperative chemotherapy. Platinum drugs are a class of chemotherapeutic drugs that affect the cell cycle, and the main site of action is the DNA of cells, which are common chemotherapeutic drugs in clinical practice. Chemotherapy with platinum drugs such as cisplatin, carboplatin, oxaliplatin, or a combination thereof is used to treat a variety of tumors. However, the results of gliomas chemotherapy are unsatisfactory, and resistance to platinum drugs is one of the important reasons. The resistance of gliomas to platinum drugs is the result of a combination of influencing factors. Decreased intracellular drug concentration, enhanced function of cell processing active products, enhanced repair ability of cellular DNA damage, and blockage of related apoptosis pathways play an important role in it. It is known that the pathogenic properties of glioma cells and the response of glioma towards platinum-based drugs are strongly influenced by non-coding RNAs, particularly, by microRNAs (miRNAs) and long non-coding RNAs (lncRNAs). miRNAs and lncRNAs control drug sensitivity and the development of tumor resistance towards platinum drugs. This mini-review summarizes the resistance mechanisms of gliomas to platinum drugs, as well as molecules and therapies that can improve the sensitivity of gliomas to platinum drugs.


Asunto(s)
Antineoplásicos , Neoplasias Encefálicas , Resistencia a Antineoplásicos , Glioma , MicroARNs , Compuestos de Platino , ARN Largo no Codificante , Antineoplásicos/farmacología , Antineoplásicos/uso terapéutico , Neoplasias Encefálicas/tratamiento farmacológico , Neoplasias Encefálicas/genética , Cisplatino/farmacología , Cisplatino/uso terapéutico , Resistencia a Antineoplásicos/genética , Glioma/tratamiento farmacológico , Glioma/genética , Humanos , MicroARNs/genética , Compuestos de Platino/farmacología , Compuestos de Platino/uso terapéutico , ARN Largo no Codificante/genética
7.
J Texture Stud ; 53(5): 684-692, 2022 09.
Artículo en Inglés | MEDLINE | ID: mdl-35730248

RESUMEN

In order to improve the stability of dough with soybean oil, this article explored the effect of soybean oil addition on the rheological characteristics of dough under high hydrostatic pressure. The results showed that, compared with the dough without soybean oil, the ß-sheet, disulfide bonds content, and gauche-gauche-gauche in the dough increased by 4.23%, 0.85 µmol/g, and 4.16%, respectively when the dough was added with 6% soybean oil, which improved the degree of cross-linking polymerization of gluten protein and the stability of gluten network. Meanwhile, the dough had the highest elastic modulus and the lowest maximum creep compliance (6.85 × 10-4 Pa-1 ), indicating that 6% soybean oil significantly increased the elasticity and hardness of the dough. The results of short-range ordered structure and paste properties showed that with the addition of soybean oil, the ordered structure and paste viscosity decreased with the increase of soybean oil.


Asunto(s)
Pan , Harina , Disulfuros , Glútenes/química , Presión Hidrostática , Aceite de Soja
8.
Front Pharmacol ; 13: 865353, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-35321323

RESUMEN

Berberine (BBR), an important quaternary benzylisoquinoline alkaloid, has been used in Chinese traditional medicine for over 3,000 years. BBR has been shown in both traditional and modern medicine to have a wide range of pharmacological actions, including hypoglycemic, hypolipidemic, anti-obesity, hepatoprotective, anti-inflammatory, and antioxidant activities. The unregulated reaction chain induced by oxidative stress as a crucial mechanism result in myocardial damage, which is involved in the pathogenesis and progression of many cardiovascular diseases (CVDs). Numerous researches have established that BBR protects myocardium and may be beneficial in the treatment of CVDs. Given that the pivotal role of oxidative stress in CVDs, the pharmacological effects of BBR in the treatment and/or management of CVDs have strongly attracted the attention of scholars. Therefore, this review sums up the prevention and treatment mechanisms of BBR in CVDs from in vitro, in vivo, and finally to the clinical field trials timely. We summarized the antioxidant stress of BBR in the management of coronary atherosclerosis and myocardial ischemia/reperfusion; it also analyzes the pathogenesis of oxidative stress in arrhythmia and heart failure and the therapeutic effects of BBR. In short, BBR is a hopeful drug candidate for the treatment of CVDs, which can intervene in the process of CVDs from multiple angles and different aspects. Therefore, if we want to apply it to the clinic on a large scale, more comprehensive, intensive, and detailed researches are needed to be carried out to clarify the molecular mechanism and targets of BBR.

9.
Photodermatol Photoimmunol Photomed ; 38(4): 382-390, 2022 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-34989016

RESUMEN

BACKGROUND: Despite the widespread use of intense pulsed light (IPL) technology in cosmetic dermatology, the effects of its repeated use on facial skin sensitivity in healthy individuals remains unknown. METHODS: Seventeen healthy female volunteers were included in the study. We measured objective biophysical parameters of the skin, including transepidermal water loss (TEWL), skin glossiness, thickness and density of the epidermis and dermis, sensory nerve current perception threshold (CPT), and regional blood flow before and after treatment at different time points. RESULTS: Sixteen volunteers completed a follow-up of 12 months. The treated side of the face showed a decreased TEWL on D1 and D3, which reverted to normal on D7. Epidermal thickness increased and skin glossiness decreased on the treated side on D1, but returned to normal on D3. We found no statistically significant differences in CPT values or in regional blood flow volume and velocity, with the exception of D1, which exhibited a higher regional blood flow volume on the treated side. CONCLUSION: Repeated IPL treatments had no effects on facial skin barrier function, skin nerve sensitivity, or local microcirculation among healthy individuals. IPL is a safe skin care procedure that does not affect skin sensitivity.


Asunto(s)
Tratamiento de Luz Pulsada Intensa , Envejecimiento de la Piel , Epidermis , Femenino , Humanos , Tratamiento de Luz Pulsada Intensa/métodos , Estudios Prospectivos , Piel , Resultado del Tratamiento
10.
Nat Prod Res ; 36(1): 130-135, 2022 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-32441138

RESUMEN

Three new paraconic acids, xylariacinics A-C (1-3), were isolated from the endophyte Xylariaceae sp. J4 harbored in the medicinal plant Blumea balsamifera. Their structures were elucidated on the basis of extensive spectroscopic data including HRMS, and NMR. The antibacterial efficacies of compounds 1-3 were evaluated against a panel of bacteria such as Staphylococcus aureus, Bacillus subtilis, Escherichia coli and Pseudomonas aeruginosa. Their antifungal activities were also tested against Colletotrichum gloeosporioides. Unfortunately, all of them were inactive.


Asunto(s)
Staphylococcus aureus , Xylariales , Antibacterianos/farmacología , Bacillus subtilis , Endófitos , Pruebas de Sensibilidad Microbiana
11.
Zhongguo Zhen Jiu ; 41(12): 1383-6, 2021 Dec 12.
Artículo en Chino | MEDLINE | ID: mdl-34936279

RESUMEN

YUAN Qing's clinical experience in treating autism spectrum disorder using Tiaoshen (regulating the spirit) acupuncture is summarized. YUAN Qing believes that the basic pathogenesis of children with autism spectrum disorder is due to the impairment of brain essence and heart mind. Thus regulating the spirit, especially adjusting brain essence and heart mind is essential during clinical treatment. The main acupoints on the head (brain tri-points, four-spirit points, spirit setting points, mental tri-points, spirit waking-up points and foot mental points) are used to adjust brain essence, and hand mental tri-points (Shenmen[HT 7], Neiguan[PC 6] and Laogong[PC 8]) are used for adjusting heart mind, and emphasizing the importance of the spirit of the doctor and the children's parents.


Asunto(s)
Terapia por Acupuntura , Acupuntura , Trastorno del Espectro Autista , Puntos de Acupuntura , Trastorno del Espectro Autista/terapia , Encéfalo , Niño , Humanos
12.
Food Funct ; 12(19): 9273-9285, 2021 Oct 04.
Artículo en Inglés | MEDLINE | ID: mdl-34606538

RESUMEN

This study aimed to explore the protection mechanism of a debranched corn starch/konjac glucomannan (DCSK) composite against type 2 diabetes (T2D) related to dyslipidemia and gut microbiota in mice fed on a high-fat diet (HFD). The results showed that the consumption of DCSK led to a significant improvement in the biochemical parameters and physiological indices associated with T2D in the HFD group, including the decrease in blood glucose, triglyceride, total cholesterol, and high-density lipoprotein cholesterol levels, as well as the suppression of the oxidative stress of the liver and kidneys. Furthermore, the health of the intestinal microbiota in the HFD-fed mice was altered dramatically after DCSK consumption. Metabolomics revealed 13 differential metabolites strongly linked to DCSK intervention, and DCSK supplementation regulated amino acid metabolism, nucleotide metabolism, and lipid metabolism. These findings demonstrated that DCSK has an outstanding ability to improve hyperglycemia, hyperlipidemia, and gut microbiota associated with T2D.


Asunto(s)
Diabetes Mellitus Tipo 2/metabolismo , Diabetes Mellitus Tipo 2/microbiología , Suplementos Dietéticos , Dislipidemias/prevención & control , Microbioma Gastrointestinal , Mananos , Almidón , Animales , Glucemia/metabolismo , Peso Corporal , Diabetes Mellitus Tipo 2/complicaciones , Diabetes Mellitus Tipo 2/patología , Dieta Alta en Grasa/efectos adversos , Dislipidemias/complicaciones , Riñón/patología , Hígado/patología , Masculino , Redes y Vías Metabólicas , Ratones , Ratones Endogámicos C57BL
13.
Ann Palliat Med ; 10(7): 8283-8291, 2021 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-34263648

RESUMEN

BACKGROUND: Breast cancer is the most common cancer worldwide. Anthracyclines, alone or in combination with other chemotherapeutic agents, are the most effective chemotherapy agents against breast cancer. However, the dose-dependent cardiotoxicity of anthracyclines is a serious drawback in clinical treatment. Considerable efforts have been made to establish suggestions to avoid anthracycline-induced cardiotoxicity. Crocin extracted from saffron has potential cardioprotective effects against anthracycline-induced cardiotoxicity. The aim of this study was to estimate the cardioprotective effects and safety of saffron total glycoside tablets relative to placebo in patients with breast cancer undergoing anthracycline-based chemotherapy. METHODS: This is a multicentre, randomised, double-blind, placebo-controlled clinical trial. A sample of 200 participants (100 per group) with breast cancer will be randomly assigned to receive either saffron total glycoside tablet or placebo (four tablets each time, three times each day) for 6 months. Each participant will be interviewed three times: baseline (visit 1), after 3 months (visit 2), and after 6 months (visit 3). The primary outcome is to confirm if administration of saffron total glycoside tablets reduces the rate of cardiotoxicity relative to that with placebo. Secondary outcomes include new arrhythmic events, and cardiac troponin I and N-terminal pro-B-type natriuretic peptide levels. The quantity, quality, and severity of the adverse events will be carefully documented. DISCUSSION: We look forward to obtaining high-quality evidence that can be used to formulate clinical practice guidelines. Thus, the findings of this study are expected to help fill the current gap in cardiotoxicity prevention drugs. TRIAL REGISTRATION: This trial was published in the Chinese Clinical Trial Registry (No. ChiCTR2000041134, registered on 19th December 2020).


Asunto(s)
Neoplasias de la Mama , Crocus , Antraciclinas/uso terapéutico , Neoplasias de la Mama/tratamiento farmacológico , Femenino , Glicósidos , Humanos , Estudios Multicéntricos como Asunto , Ensayos Clínicos Controlados Aleatorios como Asunto , Comprimidos , Resultado del Tratamiento
14.
Oxid Med Cell Longev ; 2021: 6699821, 2021.
Artículo en Inglés | MEDLINE | ID: mdl-33542784

RESUMEN

Saffron is commonly used in traditional medicines and precious perfumes. It contains pharmacologically active compounds with notably potent antioxidant activity. Saffron has a variety of active components, including crocin, crocetin, and safranal. Oxidative stress plays an important role in many cardiovascular diseases, and its uncontrolled chain reaction is related to myocardial injury. Numerous studies have confirmed that saffron exact exhibits protective effects on the myocardium and might be beneficial in the treatment of cardiovascular disease. In view of the role of oxidative stress in cardiovascular disease, people have shown considerable interest in the potential role of saffron extract as a treatment for a range of cardiovascular diseases. This review analyzed the use of saffron in the treatment of cardiovascular diseases through antioxidant stress from four aspects: antiatherosclerosis, antimyocardial ischemia, anti-ischemia reperfusion injury, and improvement in drug-induced cardiotoxicity, particularly anthracycline-induced. Although data is limited in humans with only two clinically relevant studies, the results of preclinical studies regarding the antioxidant stress effects of saffron are promising and warrant further research in clinical trials. This review summarized the protective effect of saffron in cardiovascular diseases and drug-induced cardiotoxicity. It will facilitate pharmacological research and development and promote utilization of saffron.


Asunto(s)
Enfermedades Cardiovasculares/prevención & control , Crocus/química , Extractos Vegetales/farmacología , Animales , Antioxidantes/aislamiento & purificación , Antioxidantes/farmacología , Cardiotoxicidad/metabolismo , Cardiotoxicidad/patología , Cardiotoxicidad/prevención & control , Enfermedades Cardiovasculares/metabolismo , Enfermedades Cardiovasculares/patología , Humanos , Estrés Oxidativo/efectos de los fármacos , Extractos Vegetales/aislamiento & purificación , Extractos Vegetales/uso terapéutico , Daño por Reperfusión/patología , Daño por Reperfusión/prevención & control
15.
Acta Pharmacol Sin ; 42(11): 1769-1779, 2021 11.
Artículo en Inglés | MEDLINE | ID: mdl-33627802

RESUMEN

NOD-like receptor (NLR) family pyrin domain-containing-3 (NLRP3) inflammasome is implicated in inflammation-associated diseases such as multiple sclerosis, Parkinson's disease, and stroke. Targeting the NLRP3 inflammasome is beneficial to these diseases, but few NLRP3 inflammasome-selective inhibitors are identified to date. Essential oils (EOs) are liquid mixtures of volatile and low molecular-weight organic compounds extracted from aromatic plants, which show various pharmacological activities, including antibacterial, antifungal, antiviral, antioxidant, and anti-inflammatory properties. In this study we screened active ingredients from essential oils, and identified 1,2,4-trimethoxybenzene (1,2,4-TTB) as a selective NLRP3 inflammasome inhibitor. We showed that 1,2,4-TTB (1 mM) markedly suppressed nigericin- or ATP-induced NLRP3 inflammasome activation, thus decreased caspase-1 activation and IL-1ß secretion in immortalized murine bone marrow-derived macrophages (iBMDMs) and in primary mouse microglia. Moreover, 1,2,4-TTB specifically inhibited the activation of NLRP3 inflammasome without affecting absent in melanoma 2 (AIM2) inflammasome activation. We further demonstrated that 1,2,4-TTB inhibited oligomerization of the apoptosis-associated speck-like protein containing a CARD (ASC) and protein-protein interaction between NLRP3 and ASC, thus blocking NLRP3 inflammasome assembly in iBMDMs and in primary mouse macrophages. In mice with experimental autoimmune encephalomyelitis (EAE), administration of 1,2,4-TTB (200 mg · kg-1 · d-1, i.g. for 17 days) significantly ameliorated EAE progression and demyelination. In conclusion, our results demonstrate that 1,2,4-TTB is an NLRP3 inflammasome inhibitor and attenuates the clinical symptom and inflammation of EAE, suggesting that 1,2,4-TTB is a potential candidate compound for treating NLRP3 inflammasome-driven diseases, such as multiple sclerosis.


Asunto(s)
Derivados del Benceno/uso terapéutico , Encefalomielitis Autoinmune Experimental/tratamiento farmacológico , Encefalomielitis Autoinmune Experimental/metabolismo , Proteína con Dominio Pirina 3 de la Familia NLR/antagonistas & inhibidores , Proteína con Dominio Pirina 3 de la Familia NLR/metabolismo , Animales , Derivados del Benceno/farmacología , Línea Celular Transformada , Femenino , Macrófagos Peritoneales/efectos de los fármacos , Macrófagos Peritoneales/metabolismo , Ratones , Ratones Endogámicos C57BL , Ratones Noqueados
16.
Lasers Surg Med ; 53(8): 1050-1058, 2021 10.
Artículo en Inglés | MEDLINE | ID: mdl-33508159

RESUMEN

BACKGROUND AND OBJECTIVE: To compare changes in skin sensitivity before and after treatment with a 1064-nm Q-switched Nd:YAG laser in healthy individuals, and to provide a reference for clinicians to use this laser reasonably. STUDY DESIGN/MATERIALS AND METHODS: Nineteen healthy female volunteers underwent 10 random unilateral 1064-nm Q-switched Nd:YAG laser treatments. The skin transepidermal water loss rate (TEWL), skin glossiness, epidermal and dermal thickness and density, current perception threshold (CPT) value, facial blood perfusion were determined before and after treatment at different time points. Moreover, the changes in skin barrier function, blood vessels, and sensory nerve reaction in the treated and untreated sides of the face were recorded before and after treatment. RESULTS: Seventeen volunteers completed the 12-month follow-up study after 1064-nm Q-switched Nd:YAG laser treatment. At D3, M3, and M6, skin TEWL was decreased on the treated side of the face. Skin glossiness was significantly improved in the early post-treatment period (D1-D7) and M3, M6, and M12 compared with the untreated side of the face. There was no significant change in dermal and epidermal thickness or density at all time points before and after treatment. There were no significant differences in sensory nerve CPT values and local blood flow volume or velocity between the treated side of the face and the untreated side before and after treatment. CONCLUSION: Multiple low-energy 1064-nm Q-switched Nd:YAG laser treatments will not affect the barrier function of facial skin, skin nerve sensitivity, or local microcirculation of healthy skin over the long term. Therefore, 1064-nm Q-switched Nd:YAG laser treatment is safe, and does not alter skin sensitivity. Lasers Surg. Med. © 2021 Wiley Periodicals LLC.


Asunto(s)
Láseres de Estado Sólido , Terapia por Luz de Baja Intensidad , Femenino , Estudios de Seguimiento , Humanos , Láseres de Estado Sólido/uso terapéutico , Estudios Prospectivos , Piel , Resultado del Tratamiento
17.
Food Res Int ; 138(Pt B): 109778, 2020 12.
Artículo en Inglés | MEDLINE | ID: mdl-33288164

RESUMEN

High-fat diets (HFDs) can induce health problems including gut microbiota dysbiosis and cardiac dysfunction. In this study, we modulated the gut microbiota in mice to investigate whether Lycium barbarum polysaccharide (LBP), a potential prebiotic fiber, could alleviate HFD-induced myocardial injury. Mice fed a HFD were given LBP (HFPD group) by gavage once/day for 2 months. Left ventricular function and serum trimethylamine N-oxide were significantly improved in HFPD mice compared with HFD mice. HFD increased the abundances of Bifidobacterium, Lactobacillus, and Romboutsia, while LBP increased the abundances of Gordonibacter, Parabacteroides, and Anaerostipes. Fecal metabolic profiling revealed significant increases in metabolites involved in nicotinate, nicotinamide and purine metabolism pathways, as well as indole derivatives of tryptophan metabolites in the HFPD group. LBP reduced intestinal permeability and inflammatory cytokine levels, maintained a healthy intestinal microenvironment, and alleviated myocardial injury. Modulating the gut microbiota is a potential treatment for cardiovascular diseases.


Asunto(s)
Microbioma Gastrointestinal , Animales , Dieta Alta en Grasa , Medicamentos Herbarios Chinos , Disbiosis , Metaboloma , Ratones
18.
Sheng Wu Gong Cheng Xue Bao ; 36(11): 2277-2286, 2020 Nov 25.
Artículo en Chino | MEDLINE | ID: mdl-33244923

RESUMEN

MYB transcription factor is one of the largest transcription families and involved in plant growth and development, stress response, product metabolism and other processes. It regulates the development of plant flowers, especially anther development, a key role in the reproduction of plant progeny. Here, we discuss the regulatory effects of MYB transcription factors on the development of anther, including tapetum development, anther dehiscence, pollen development, carbohydrates and hormone pathways. We provide a reference for the further study of the regulation mechanism and network of plant anther development.


Asunto(s)
Arabidopsis , Factores de Transcripción , Arabidopsis/metabolismo , Flores/genética , Regulación de la Expresión Génica de las Plantas , Humanos , Polen/genética , Reproducción , Factores de Transcripción/genética , Factores de Transcripción/metabolismo
19.
Sheng Wu Gong Cheng Xue Bao ; 36(8): 1650-1658, 2020 Aug 25.
Artículo en Chino | MEDLINE | ID: mdl-32924363

RESUMEN

Endophytic fungus is an important treasure trove for discovery of structurally unusual and biologically diverse compounds. A phytochemical investigation on a fungus Clonostachys rosea inhabits inner tissue of Blumea balsamifera (L.) DC. was initiatedrecently in our lab. Six pure compounds were isolated through silica gel column chromatography, sephadex LH-20, and semi-preparative HPLC techniques, with bio-guided strategy. Their structures were characterized as verticillin A (1), (S)-(+)-fusarinolic acid (2), 8-hydroxyfusaric acid (3), cerebroside C (4), 3-Maleimide-5-oxime (5), and bionectriol A (6) by analyses of NMR and MS data. All compounds were tested in vitro antibacterial activities against four strains of bacteria, Escherichia coli, Staphylococcus aureus, Bacillus subtilis and Pseudomonas aeruginosa, and results revealed that 1, 4 and 6 display notableinhibition againstthree bacteria, with MIC values ranging from 2 to 16 µg/mL. Our findings provide references for mining novel antibiotics from endophytes originated from Li Minority medicinal plant B. balsamifera (L.) DC.


Asunto(s)
Antibacterianos , Asteraceae , Hypocreales , Antibacterianos/química , Antibacterianos/aislamiento & purificación , Antibacterianos/farmacología , Asteraceae/microbiología , Bacterias/efectos de los fármacos , Endófitos , Hypocreales/química , Hypocreales/metabolismo , Pruebas de Sensibilidad Microbiana
20.
Rejuvenation Res ; 23(2): 122-129, 2020 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-31032742

RESUMEN

Whether multiple laser irradiations affect skin sensitivity is still elusive. We aimed to investigate if repeated ablative erbium:yttrium-aluminum-garnet (Er:YAG) laser therapy could cause or increase skin sensitivity in the treatment areas. Nineteen healthy females received three sessions of a randomized, split-face, Er:YAG laser treatment in a scanning ablative mode (MicroLaserPeel™), with a 6-mm spot size, 8-µm ablative depths, and 30% of pulse overlap first. The next round was conducted in the fractional mode (ProFractional™) at depths ranging from 100 to 150 µm, with one pass by at coverage of 11% in the coagulation mode. Objective biophysical parameters, including transepidermal water loss (TEWL), skin glossiness, epidermal and dermal thickness and density, sensory nerve current perception threshold (CPT), and local blood flow, were measured before and after treatment. Quantitative evaluation of the Er:YAG laser treatment's effect on skin sensitivity is presented. Seventeen volunteers completed a follow-up of 12 months. On days 1 and 3, skin TEWL and epidermal thickness increased, while glossiness decreased. On day 7, there was no significant difference in the skin barrier function between the treated and the control side. Similarly, there was no significant difference in CPT values or local microvascular blood flow between sides at any time point before or after treatment, except that the local microvascular blood flow on the treated side was higher on the first day post-treatment. Er:YAG laser treatment does not influence skin sensitivity in healthy subjects in a long-term follow-up.


Asunto(s)
Cara/inervación , Hipersensibilidad , Láseres de Estado Sólido/uso terapéutico , Terapia por Luz de Baja Intensidad/métodos , Envejecimiento de la Piel/efectos de la radiación , Fenómenos Fisiológicos de la Piel , Adulto , Cara/efectos de la radiación , Femenino , Humanos , Terapia por Luz de Baja Intensidad/instrumentación , Persona de Mediana Edad , Estudios Prospectivos
SELECCIÓN DE REFERENCIAS
DETALLE DE LA BÚSQUEDA