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1.
Int J Biol Macromol ; 254(Pt 3): 128082, 2024 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-37972838

RESUMO

This study investigated the effect of varying magnetic field intensities (ranging from 0 to 10 mT) on the quality characteristics of dough with 40 % potato pulp substitution (DPP). The results indicated that the DPP fermented with a 4 mT magnetic field exhibited a significant enhancement in the combination of water and substrate, thereby elevating the viscoelastic properties of DPP through reinforcing the stability of gluten network. Meanwhile, DPP treated with a 4 mT magnetic field exhibited the highest amount of disulfide bonds (11.64 µmol SS/g sample). This is accompanied by a prominent cross-linkage structure, as evidenced by SDS-PAGE and CLSM. Notably, the application of a magnetic field substantially augments the dough's capacity to retain gas during fermentation. In addition, the application of magnetic field significantly increased the wet gluten content (20.85 %, P < 0.05) in DPP, which improved tensile properties and an acceptable color profile. The introduction of a magnetic field induces gluten aggregation, which in turn results in heightened particle size distribution and ζ-potential values. In conclusion, this study emphasize the potential of magnetic field technology as a viable method to enhance the overall quality attributes of dough enriched with potato pulp substitution.


Assuntos
Glutens , Solanum tuberosum , Glutens/química , Farinha , Pão
2.
Acta Biochim Biophys Sin (Shanghai) ; 55(4): 540-547, 2023 Feb 22.
Artigo em Inglês | MEDLINE | ID: mdl-36815374

RESUMO

Few therapeutic drugs and increased drug resistance have aggravated the current treatment difficulties of Cryptococcus in recent years. To better understand the antifungal drug resistance mechanism and treatment strategy of cryptococcosis. In this review, by combining the fundamental features of Cryptococcus reproduction leading to changes in its genome, we review recent research into the mechanism of four current anti-cryptococcal agents, coupled with new therapeutic strategies and the application of advanced technologies WGS and CRISPR-Cas9 in this field, hoping to provide a broad idea for the future clinical therapy of cryptococcosis.


Assuntos
Criptococose , Cryptococcus , Humanos , Cryptococcus/genética , Antifúngicos/farmacologia , Antifúngicos/uso terapêutico , Criptococose/tratamento farmacológico , Criptococose/microbiologia , Farmacorresistência Fúngica/genética
3.
J Nutr Biochem ; 111: 109179, 2023 01.
Artigo em Inglês | MEDLINE | ID: mdl-36223832

RESUMO

Epigallocatechin gallate (EGCG) has a wide consumption for its health advantages. The current study investigates the effects of prenatal EGCG administration on glucose metabolism and obesity in adulthood. Pregnant C57BL/6J mice were supplemented with EGCG in drinking water (3 µg/mL) for 16 d. Abdominal obesity was observed in both male and female adult mice, which was associated with the upregulation of adipose-specific genes, including C/ebpα and Srebf1 (Srebf1 only in males), and the downregulation of genes related to lipolysis, such as Acox1, Atgl and Pdk4 (only in males) in visceral adipose tissue. Elevated fasting glucose levels and hyperinsulinemia were observed in adult males, while females exhibit lower glucose level in glucose tolerance test, which might be due to reduced glucagon levels. Though hepatic expression of the insulin receptor signaling pathway was upregulated in males and was not altered in females, prenatal treatment with EGCG downregulated the expression of this signaling pathway in the skeletal muscle of adult mice, which was further demonstrated in primary human skeletal muscle cells treated with EGCG. The methylation levels in promotor of genes related to the insulin receptor signaling were matched with their transcription in mice, while the expression of acetylated histones was downregulated in human skeletal muscle cells. These results suggest that EGCG consumption during pregnancy should be a risk factor for the disruption of glucose homeostasis in adulthood.


Assuntos
Catequina , Obesidade , Efeitos Tardios da Exposição Pré-Natal , Animais , Feminino , Masculino , Camundongos , Gravidez , Catequina/metabolismo , Glucose/metabolismo , Homeostase , Camundongos Endogâmicos C57BL , Obesidade/etiologia , Obesidade/prevenção & controle , Receptor de Insulina , Cultura Primária de Células , Humanos
4.
Ultrason Sonochem ; 92: 106281, 2023 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-36586338

RESUMO

Physicochemical properties and microstructure of gluten protein, and the structural characteristics of steamed bread with 30 % potato pulp (SBPP) were investigated by ultrasonic treatments. Results showed that 400 W ultrasonic treatment significantly (P < 0.05) increased the combination of water and substrate in the dough with 30 % potato pulp (DPP). The contents of wet gluten, free sulfhydryl (SH), and disulfide bond (SS) were influenced by ultrasonic treatment. Moreover, UV-visible and fluorescence spectroscopy demonstrated that the conformation of gluten protein was changed by ultrasonic treatment (400 W). Fourier transform infrared (FT-IR) illustrated that the ß-sheet content was significantly (P < 0.05) increased (42 %) after 400 W ultrasonic treatment, and the surface hydrophobicity of gluten protein in SBPP increased from 1225.37 (0 W ultrasonic treatment) to 4588.74 (400 W ultrasonic treatment). Ultrasonic treatment facilitated the generation of a continuous gluten network and stabilized crumb structure, further increased the specific volume and springiness of SBPP to 18.9 % and 6.9 %, respectively. Those findings suggested that ultrasonic treatment would be an efficient method to modify gluten protein and improve the quality of SBPP.


Assuntos
Glutens , Solanum tuberosum , Glutens/química , Solanum tuberosum/química , Pão/análise , Ultrassom , Espectroscopia de Infravermelho com Transformada de Fourier , Vapor
5.
Bioact Mater ; 6(3): 905-917, 2021 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-33163698

RESUMO

Gelation kinetics is important in tailoring chemically crosslinked hydrogel-based injectable adhesives for different applications. However, the regulation of gelation rate is usually limited to varying the gel precursor and/or crosslinker concentration, which cannot reach a fine level and inevitably alters the physical properties of hydrogels. Amidation reactions are widely used to synthesize hydrogel adhesives. In this work, we propose a traditional Chinese medicine (Borax)-input strategy to tune the gelation rate of amidation reaction triggered systems. Borax provides an initial basic buffer environment to promote the deprotonation process of amino groups and accelerate this reaction. By using a tissue adhesive model PEG-lysozyme (PEG-LZM), the gelation time can be modulated from seconds to minutes with varying Borax concentrations, while the physical properties remain constant. Moreover, the antibacterial ability can be improved due to the bioactivity of Borax. The hydrogel precursors can be regulated to solidify instantly to close the bleeding wound at emergency. Meanwhile, they can also be customized to match the flowing time in the catheter, thereby facilitating minimally invasive tissue sealing. Because this method is easily operated, we envision Borax adjusted amidation-type hydrogel has a promising prospect in clinical application.

6.
ACS Appl Mater Interfaces ; 12(7): 8915-8928, 2020 Feb 19.
Artigo em Inglês | MEDLINE | ID: mdl-31971763

RESUMO

Microbial disinfection associated with medical device surfaces has been an increasing need, and surface modification strategies such as antibacterial coatings have gained great interest. Here, we report the development of polydopamine-ferrocene (PDA-Fc)-functionalized TiO2 nanorods (Ti-Nd-PDA-Fc) as a context-dependent antibacterial system on implant to combat bacterial infection and hinder biofilm formation. In this work, two synergistic antimicrobial mechanisms of the PDA-Fc coating are proposed. First, the PDA-Fc coating is redox-active and can be locally activated to release antibacterial reactive oxygen species (ROS), especially ·OH in response to the acidic microenvironment induced by bacteria colonization and host immune responses. The results demonstrate that redox-based antimicrobial activity of Ti-Nd-PDA-Fc offers antibacterial efficacy of over 95 and 92% against methicillin-resistant Staphylococcus aureus (MRSA) and Escherichia coli (E. coli), respectively. Second, the photothermal effect of PDA can enhance the antibacterial capability upon near-infrared (NIR) irradiation, with over 99% killing efficacy against MRSA and E. coli, and even suppress the formation of biofilm through both localized hyperthermia and enhanced ·OH generation. Additionally, Ti-Nd-PDA-Fc is biocompatible when tested with model pre-osteoblast MC-3T3 E1 cells and promotes cell adhesion and spreading presumably due to its nanotopographical features. The MRSA-infected wound model also indicates that Ti-Nd-PDA-Fc with NIR irradiation can effectively eliminate bacterial infection and suppress host inflammatory responses. We believe that this study demonstrates a simple means to create biocompatible redox-active coatings that confer context-dependent antibacterial activities to implant surfaces.


Assuntos
Antibacterianos/farmacologia , Biofilmes/efeitos dos fármacos , Materiais Revestidos Biocompatíveis/farmacologia , Compostos Ferrosos/farmacologia , Indóis/farmacologia , Metalocenos/farmacologia , Nanotubos/química , Polímeros/farmacologia , Próteses e Implantes , Células 3T3 , Animais , Escherichia coli/efeitos dos fármacos , Compostos Ferrosos/química , Indóis/química , Masculino , Metalocenos/química , Camundongos , Testes de Sensibilidade Microbiana , Microscopia de Força Atômica , Microscopia Eletrônica de Varredura , Microscopia Eletrônica de Transmissão , Nanotubos/ultraestrutura , Oxirredução , Fototerapia , Polímeros/química , Ratos , Ratos Sprague-Dawley , Espécies Reativas de Oxigênio/farmacologia , Staphylococcus aureus/efeitos dos fármacos , Temperatura , Titânio/química , Titânio/farmacologia , Cicatrização/efeitos dos fármacos , Difração de Raios X
7.
Chin Med ; 12: 19, 2017.
Artigo em Inglês | MEDLINE | ID: mdl-28702077

RESUMO

BACKGROUND: As an empirical medical system independent of conventional Western medicine (CWM), over thousands of years, traditional Chinese medicine (TCM) has established its own unique method of diagnosis and treatment. The perspective of holism and system in TCM is essentially different from the view of Reductionism in CWM. With the development of modern science and technology, the restriction of reductionism is more and more prominent, and researchers begin to pay more attention to holistic thinking in TCM. Confronted with the above situation, there is an urgent need to explore the diagnosis of TCM by the techniques of modern science. METHODS: To explore the feasibility of using modern science to describe and realize the diagnosis of TCM, in this paper, a method of syndrome element differentiation based on phenomenology is proposed. The proposed method is implemented by mathematical mapping, and then it is testified through analysis of 670 medical records: Based on the original mapping data between two data sets (set of syndrome elements and set of clinical manifestations), new mapping data is generated, and thus the corresponding quantitative diagnostic results are calculated and evaluated. Finally, knowledge discovery of the diagnosis results based on attribute partial-ordered structure diagram is conducted. RESULTS: The value order's matching results between original and new results show that the matched degree of each record is no less than 65%, while there are at least 87% records whose matched degree is more than 80%. In addition, the knowledge discoveries of new results are basically identical with the ones of original results as well. CONCLUSION: Using phenomenology to describe syndrome differentiation should be feasible, and further research on mapping relations between various sets (symptoms, formulas, drugs) of TCM should be conducted and evaluated through clinical trials in future.

8.
Zhongguo Zhen Jiu ; 29(1): 7-9, 2009 Jan.
Artigo em Chinês | MEDLINE | ID: mdl-19186713

RESUMO

OBJECTIVE: To observe the influence of different frequencies of acupuncture on the therapeutic effect in patients with cerebral infarction at convalescence. METHODS: Ninety-seven cases were randomly divided into an observation group I (n = 50) and an observation group II (n = 47). They were treated with same Chinese drugs and western medicine and electroacupuncture at Jiquan (HT 1), Quchi (LI 11), Hegu (LI 4), Huantiao (GB 30), etc. The observation group I was treated twice each day and the observation group II once each day. After treatment of 30 days, their therapeutic effects were observed. RESULTS: The total effective rate of 94.0% for improvement of limb activity in the observation group I was better than 78.7% in the observation group II (P < 0.05); the therapeutic effects for choking when taking water, dysphagia, vague mind and slurred speech were similar in the two groups (P > 0.05). CONCLUSION: The therapeutic effect of acupuncture twice each day on cerebral infarction at convalescence is superior to that of once daily.


Assuntos
Terapia por Acupuntura , Infarto Cerebral/terapia , Convalescença , Terapia por Acupuntura/métodos , Adulto , Idoso , Infarto Cerebral/tratamento farmacológico , Infarto Cerebral/fisiopatologia , Terapia Combinada , Medicamentos de Ervas Chinesas/uso terapêutico , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Resultado do Tratamento
9.
Sheng Wu Yi Xue Gong Cheng Xue Za Zhi ; 23(2): 450-4, 2006 Apr.
Artigo em Chinês | MEDLINE | ID: mdl-16706387

RESUMO

The research on anti-aging technology is always a foreland in the field of researches into human health. Based on a review of the researches for anti-aging, this paper described all kinds of theory of aging and laid the emphasis on the status quo of researches on the use of Traditional Chinese Medicine(TCM) moxibustion for anti-aging, including the research on the theory of the moxibustion in anti-aging, the research on selecting acupoints of moxibustion for anti-aging, and the clinical application of moxibustion in anti-aging in detail. The significance of herbalist theory in anti-aging and the wider development foreground were high-lighted.


Assuntos
Pontos de Acupuntura , Envelhecimento , Moxibustão , Humanos
10.
Zhongguo Zhen Jiu ; 26(3): 227-9, 2006 Mar.
Artigo em Chinês | MEDLINE | ID: mdl-16570452

RESUMO

In recent years, the studies on moxibustion for treatment of cancer are increasing day by day, with some advances. In the paper, clinical and experimental studies on traditional moxibustion for treatment of cancer and the mechanisms are reviewed, and some problems and shortcomings are put forward.


Assuntos
Terapia por Acupuntura , Moxibustão , Humanos , Neoplasias
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