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1.
Int J Biol Macromol ; 254(Pt 1): 127579, 2024 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-37918606

RESUMO

Silver nanoparticles (AgNPs) by green synthesis from fungi polysaccharides are attracting increasing attention owing to their distinctive features and special applications in numerous fields. In this study, a cost-effective and environmentally friendly biosynthesizing AgNPs method with no toxic chemicals involved from the fruiting body polysaccharide of Phlebopus portentosus (PPP) was established and optimized by single factor experiment and response surface methodology. The optimum synthesis conditions of polysaccharide-AgNPs (PPP-AgNPs) were identified to be the reaction time of 140 min, reaction temperature of 94 °C, and the PPP: AgNO3 ratio of 1:11.5. Formation of PPP-AgNPs was indicated by visual detection of colour change from yellowish to yellowish brown. PPP-AgNPs were characterized by different methods and further evaluated for biological activities. That the Ultraviolet-visible (UV-Vis.) spectroscopy displayed a sharp absorption peak at 420 nm confirmed the formation of AgNPs. Fourier transform infrared (FTIR) analysis detected the presence of various functional groups. The lattice indices of (111), (200), (220), and (331), which indicated a faced-centered-cubic of the Ag crystal structure of PPP-AgNPs, was confirmed by X-ray diffraction (XRD) and the particles were found to be spherical through high resolution transmission electron microscopy (HRTEM). Energy dispersive X-ray spectroscopy (EDS) determined the presence of silver in PPP-AgNPs. The percentage relative composition of elements was determined as silver (Ag) 82.5 % and oxygen (O) 17.5 % for PPP-AgNPs, and did not exhibit any nitrogen peaks. The specific surface area of PPP-AgNPs was calculated to be 0.5750 m2/g with an average pore size of 24.33 nm by BET analysis. The zeta potential was -4.32 mV, which confirmed the stability and an average particle size of 64.5 nm was calculated through dynamic light scattering (DLS). PPP-AgNPs exhibited significant free radical scavenging activity against DPPH with an IC50 value of 0.1082 mg/mL. The MIC values of PPP-AgNPs for E. coli, S. aureus, C. albicans, C. glabrata, and C. parapsilosis are 0.05 mg/mL. The IC50 value of the inhibition of PPP-AgNPs against α-glucosidase was 11.1 µg/mL, while the IC50 values of PPP-AgNPs against HepG2 and MDA-MB-231 cell lines were calculated to be 14.36 ± 0.43 µg/mL and 40.05 ± 2.71 µg/mL, respectively. According to the evaluation, it can be concluded that these green-synthesized and eco-friendly PPP-AgNPs are helpful to improve therapeutics because of significant antioxidant, antimicrobial, antidiabetic, and anticancer properties to provide new possibilities for clinic applications.


Assuntos
Anti-Infecciosos , Nanopartículas Metálicas , Prata/química , Antioxidantes/farmacologia , Antioxidantes/química , Staphylococcus aureus , Hipoglicemiantes/farmacologia , Nanopartículas Metálicas/química , Escherichia coli , Extratos Vegetais/química , Anti-Infecciosos/química , Espectrometria por Raios X , Polissacarídeos/farmacologia , Antibacterianos/farmacologia
2.
Int J Med Mushrooms ; 25(8): 19-31, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37560887

RESUMO

Polysaccharides serve as promising ingredients for health-beneficial functional foods, while there were no investigations into the structural characterizations and bioactivities of an edible mushroom Cantharellus yunnanensis. In the study, crude polysaccharides from this mushroom were extracted by hot water and isolated by ethanol precipitation. Then, a neutral polysaccharide (named CY-1) was purified from the crude polysaccharide by deproteinization with Sevag reagent, decolorization with a kind of macroporous adsorption resin SP-825, DEAE-52 cellulose column chromatography and dialysis. The physicochemical properties of CY-1 were characterized by UV, IR, SEM, NMR, and HPLC analyses. Structural characterizations revealed that CY-1 is a homogeneous heteropolysaccharide with an average molecular weight of 3.06 × 104 Da. CY-1 exhibited a honeycomb structure with an irregular branching shape, and it was composed of mannose, glucose, fucose, xylose, arabinose, galactose, rhamnose, and glucuronic acid, with molar fractions of 54.83%, 25.11%, 10.28% 4.53%, 2.12%, 1.64%, 0.83%, and 0.64%, respectively. In vitro hypoglycemic tests showed that CY-1 had an inhibitory effect on α-glucosidase. In addition, CY-1 of 160 µg/mL promoted glucose consumption in normal HepG2 cells. These results suggested that CY-1 may be a potential hypoglycemic agent.


Assuntos
Agaricales , Hipoglicemiantes , Polissacarídeos , Agaricales/química , Hipoglicemiantes/química , Hipoglicemiantes/isolamento & purificação , Polissacarídeos/química , Polissacarídeos/isolamento & purificação
3.
Artigo em Chinês | WPRIM | ID: wpr-954393

RESUMO

Objective:To observe the clinical effect of Traditional Chinese Medicine (TCM) collapsibility combined with pressure therapy in the treatment of eczema.Methods:From January 2021 to August 2021, 60 patients with lower extremity venous ulcers who were treated in Wangjing Hospital, China Academy of Chinese Medical Sciences were selected and randomly divided into the control group (30 patients) and observation group (30 patients). The control group was treated by the routine pressure therapy, and the observation group was by the TCM nursing intervention on the basis of the control group. Both groups were treated for 2 weeks. The visual analogy scale (VAS),chronic Venous Insufficiency Questionnaire (CIVIQ), Self-rating Anxiety Acale (SAS), and Self-rating Depression Scale (SDS) were measured and evaluated at baseline and after treatment.Results:The total response rate was 100.0% (30/30) in the observation group and 86.7% (26/30) in the control group, and the difference was statistically significant ( χ2=4.29, P=0.038). The VAS (2.47±0.68 vs. 2.97±0.14, t=3.95), SAS (40.31±11.93 vs. 55.87±4.53, t=4.73), SDS (44.30±5.38 vs. 47.61±5.33, t=2.39) scores were significantly lower than those in the control group ( P<0.05), CIVIQ score (86.63±2.74 vs. 84.67±3.23, t=2.54) was significantly higher than that of the control group ( P<0.05). Conclusion:TCM combined with pressure therapy can promote the healing of ulcers in patients with eczema, relieve pain, and improve the quality of life of patients.

4.
Artigo em Chinês | WPRIM | ID: wpr-906114

RESUMO

Objective:To observe the clinical efficacy of modified Chushi Juanbitang combined with pedicle vertebrotomy on kyphosis of ankylosing spondylitis due to syndrome of dampness-heat obstruction. Method:The 90 cases were randomly divided into control group and observation group, 45 cases in each group. The patients in control group received pedicle vertebrotomy + <italic>Tripterygium</italic> glycosides, and the patients in observation group received pedicle vertebrotomy + modified Chushi Juanbitang. The treatment course was 6 months in both groups. Their bath ankylosing spondylitis disease activity index (BASDAI), bath ankylosing spondylitis measure index (BASMI), imaging index, traditional Chinese medicine syndromes, serum proinflammatory factor, anti-inflammatory factor, bone metabolism index [bone-specific alkaline phosphatase (BALP), tartrate resistant acid phosphatase isomer-5b (TRACP-5 b), bone morphogenetic protein-2 (BMP-2), osteocalcin (BGP)], ossification related proteins [bone morphogenetic protein-7 (BMP-7), dickkopf-related protein-1 (DKK-1), and tissue inhibitor matrix metalloproteinase-2 (TIMP-2), sclerostin(SOST)] were observed and detected. The clinical efficacy, recurrence rate and safety indexes were followed up for 12 months and compared. Result:The total effective rate was 97.73% (43/44) in the observation group, higher than 80.95% (34/42) in the control group (<italic>χ</italic><sup>2</sup>=5.172, <italic>P</italic><0.05). In the comparison with control group after treatment, the BASDAI, BASMI, imaging index, traditional Chinese medicine syndromes, proinflammatory factors, TRACP-5b, BMP-7 and TIMP-2 were lower in observation group (<italic>P</italic><0.05), and the anti-inflammatory factors, BALP, BMP-2, BGP, DKK-1 and SOST were higher in observation group (<italic>P</italic><0.05). During the follow-up for at least 12 months, the recurrence rate was 4.65% (2/43) in observation group, lower than 26.47% (9/34) in control group (<italic>χ</italic><sup>2</sup>=4.261, <italic>P</italic><0.05). There was no significant difference in the incidence of postoperative complications between the two groups. The incidence of adverse reactions was 2.27% (1/44) in observation group, lower than 38.64% (17/44) in control group (<italic>χ</italic><sup>2</sup>=5.763, <italic>P</italic><0.05). Conclusion:Modified Chushi Juanbitang combined with pedicle vertebrotomy is effective in the treatment of kyphosis of ankylosing spondylitis due to syndrome of dampness-heat obstruction.

5.
Artigo em Chinês | WPRIM | ID: wpr-878976

RESUMO

Breast tumor has become one of the malignant tumors with the highest incidence, and is a serious threat to human health, especially to women. Chemotherapy is an important anti-breast tumor therapy, which can be used in almost every stage of breast tumor therapy alone or in the combination with surgery and radiation therapy. Alkaloids are a kind of ubiquitous natural products, and important active components of various medicinal plants. A large number of studies have shown that alkaloids could exert an anti-breast tumor effect by inhibiting proliferation, metastasis and angiogenesis, resisting mitosis, promoting apoptosis and autophagy, and triggering cell cycle arrest. The extensive anti-breast tumor effect makes alkaloids an important candidate drug source. This paper reviews the anti-breast tumor mechanism of natural products of alkaloids.


Assuntos
Feminino , Humanos , Alcaloides/farmacologia , Apoptose , Autofagia , Neoplasias da Mama/tratamento farmacológico , Pontos de Checagem do Ciclo Celular , Linhagem Celular Tumoral , Proliferação de Células
6.
Artigo em Inglês | WPRIM | ID: wpr-773590

RESUMO

Two new phenolic glycosides, 7S, 8R-urolignoside-9'-O-β-D-glucoside (1) and scrophenoside G (2), were isolated and identified from the seeds of Ginkgo biloba L., a famous traditional medicine and functional food around the world. Their structures were elucidated by spectroscopic methods (1D and 2D NMR, HR-ESI-MS, and CD), and the comparisons of spectroscopic data with the reported values in the literature.


Assuntos
Ginkgo biloba , Química , Glicosídeos , Química , Estrutura Molecular , Fenóis , Química , Extratos Vegetais , Química , Plantas Medicinais , Química , Sementes , Química , Análise Espectral
7.
Artigo em Inglês | WPRIM | ID: wpr-812379

RESUMO

Two new phenolic glycosides, 7S, 8R-urolignoside-9'-O-β-D-glucoside (1) and scrophenoside G (2), were isolated and identified from the seeds of Ginkgo biloba L., a famous traditional medicine and functional food around the world. Their structures were elucidated by spectroscopic methods (1D and 2D NMR, HR-ESI-MS, and CD), and the comparisons of spectroscopic data with the reported values in the literature.


Assuntos
Ginkgo biloba , Química , Glicosídeos , Química , Estrutura Molecular , Fenóis , Química , Extratos Vegetais , Química , Plantas Medicinais , Química , Sementes , Química , Análise Espectral
8.
Hand Clin ; 33(3): 415-424, 2017 08.
Artigo em Inglês | MEDLINE | ID: mdl-28673619

RESUMO

In China, wide-awake surgeries are increasingly used by surgeons in a growing number of hospitals for hand and upper extremity surgeries. Experience suggests that wide-awake surgery is safe, economical, and patient-friendly, optimizing hospital resource allocation and increasing efficiency. This article discusses which procedures are most suitable, variations in procedures, departmental impacts, and future direction.


Assuntos
Anestesia Local/métodos , Mãos/cirurgia , Torniquetes , Síndrome do Túnel Carpal/cirurgia , China , Traumatismos da Mão/cirurgia , Humanos
9.
Artigo em Chinês | WPRIM | ID: wpr-230942

RESUMO

To analyze the prescription and medication rules of Chinese medicines in the treatment of palpitations in the Chinese journal full text database(CNKI) by using traditional Chinese medicine inheritance system, and provide a reference for further research and development of modern traditional Chinese medicines(TCMs) in treatment of palpitations. In order to give better guidance for clinical mediation, prescriptions used for treatment of palpitations in CNKI were collected, and then were input to the TCM inheritance support system for establishing a Chinese medicine prescription database for palpitations. The software's revised mutual information, complex system entropy clustering and other data mining methods were adopted to analyze the prescriptions according to the frequencies of herbs, "four natures", "five flavors" and "meridians" of the high-frequency medicines in the database, identify the core herbs and application characteristics, and analyze the prescription rules and medication experience. Totally, 545 prescriptions used for palpitation were included in this study and involved 247 Chinese herbs. The analysis results showed that the herbs in prescriptions for palpitation mostly had the warm property, and the herbs in heart and spleen meridian accounted for a larger proportion, indicating that the treatment was mainly to nourish heart and strengthen spleen. The top 11 herbs in usage frequency were consistent with the high-frequency medicines in medication patterns of common herbal pairs; therefore, we considered that these 11 herbs were the core herbs; the core herbal combination included Cassia Twig, Licorice, fossil fragments, Ostreae decoction, and evolved into 9 new prescriptions for treating palpitation. Our results objectively presented the prescription and medication rules for treating palpitation and provided extremely effective guidance for the clinical therapy.

10.
J Tradit Chin Med ; 35(4): 361-74, 2015 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-26427104

RESUMO

OBJECTIVE: To conduct a Meta-analysis of studies on the effect of Aidi injection combined with chemotherapy versus chemotherapy alone in the treatment of gastric cancer (GC). METHODS: Nine electronic databases and six gray literature databases were comprehensively searched until April 20, 2013. Two reviewers independently selected and assessed included trials according to the inclusion and exclusion criteria. The risk of bias tool from the Cochrane Handbook version 5.1.0 was used to assess trial quality. All calculations were performed using Review Manager 5.0. RESULTS: Thirty-two studies including 1927 participants met the inclusion criteria, most of which were low quality. Compared with chemotherapy alone, Aidi injection plus the same chemotherapy significantly improved the effective rate [OR = 1.52, 95% CI (1.24, 1.86), P < 0.0001], clinical beneficial rate [OR = 1.77, 95% CI (1.33, 2.36), P < 0.0001], and quality of life [OR = 3.02, 95% CI (2.39, 3.82), P < 0.000 01]. There was a significant improvement in nausea and vomiting incidence [OR = 0.34, 95% CI (0.24, 0.47), P < 0.000 01], diarrhea [OR = 0.47, 95% CI (0.33, 0.69), P < 0.000 01], leukopenia (III-IV) [OR = 0.34, 95% CI (0.23, 0.51), P = 0.05], hemoglobin decrease (III-IV) [OR = 0.42, 95% CI (0.18-1.00), P = 0.05], thrombocytopenia (III-IV) [OR = 0.46, 95% CI (0.22, 0.96), P = 0.04], and damage to liver function [OR = 0.36, 95% CI (0.24, 0.54), P < 0.00001]. CONCLUSION: Aidi injection combined with chemotherapy significantly improved the clinical effect of chemotherapy, reducing the incidence of adverse events. Use of the CONSORT statement for randomized controlled trials is recommended for stricter reporting.


Assuntos
Carcinoma/tratamento farmacológico , Medicamentos de Ervas Chinesas/administração & dosagem , Neoplasias Gástricas/tratamento farmacológico , Bases de Dados Factuais , Humanos , Ensaios Clínicos Controlados Aleatórios como Assunto , Resultado do Tratamento
11.
Artigo em Chinês | WPRIM | ID: wpr-444466

RESUMO

Objective To explore the effects of mindfulness training combined with regular exercise on quality of life and the cognitive functioning of elderly nursing home residents.Methods Eighty elderly persons with cognitive impairments in a Tangshan nursing home were divided into a control group (40 cases) and a treatment group (40 cases) using a random number table.The control group only took regular exercise; the treatment group also received mindfulness training twice a week,60 min per time,for a total of 12 successive weeks.Cognitive functioning was evaluated with Loewenstein's occupational therapy cognitive assessment battery (LOTCA) ; quality of life was evaluated with a 36 item questionnaire (SF-36); mindfulness was evaluated using the mindful attention awareness scale (MAAS) and mood with a self-rated anxiety scale (SAS).The two groups were tested before treatment and after 12 weeks of treatment.Results After treatment,the scores on each item of the LOTCA and the total LOTCA,MAAS and SAS scores had improved significantly more in the treatment group than in the control group(P <0.05).Conclusion Mindfulness training can supplement the effects of regular exercise in improving the quality of life and cognition of elderly nursing home residents.

12.
Artigo em Chinês | WPRIM | ID: wpr-294077

RESUMO

To establish a method for the content determination of indexes for measuring aconitic compounds contained in Shenfu injection, in order to provide basis for the evaluation of the curative effect of monkshood in Shenfu injection. The sample were purified and enriched with HF-LPME. ACQUITY UPLC BEH C18 column (2.1 mm x 50 mm, 1.7 microm) was adopted and eluted with a gradient program, with acetonitrile-10 mmol x L(-1) NH4HCO3 (pH 10) as the mobile phases. The flow rate was 0.45 mL x min(-1). The content was determined with ESI and MRM. The results showed that aconitine, hypaconitine and mesaconitine showed a good linear relationship, with r > 0.999, within the range of 0.1-100 ng x L(-1). The recoveries were detected to be 100.1%, 97.4%, 97.5%, with RSD being 1.2%, 1.1%, 1.5%, respectively. This method was used to prove the safety of Shenfu injection, and provide scientific basis for correct evaluation of curative effect of monkshood, as well as a reliable, simple and practical means for quality control of monkshood-containing Chinese materia medica preparations.


Assuntos
Aconitina , Cromatografia Líquida de Alta Pressão , Métodos , Medicamentos de Ervas Chinesas , Espectrometria de Massas , Métodos , Controle de Qualidade
13.
Artigo em Chinês | WPRIM | ID: wpr-322679

RESUMO

<p><b>OBJECTIVE</b>To explore the effect of moxibustion at Sanyinjiao (SP 6) on normal process of childbirth and safety of mothers and infants.</p><p><b>METHODS</b>One hundred and seventy-four cases of singleton primiparas, fetal head position were selected as the subjects and divided into three groups by single-blind randomized method: an acupoint group (n = 59), a non-acupoint group (n = 57) and a blank group (n = 58). When the cervix was dilated by 2 to 3 cm, DAJ-23 type multi-function moxibustion apparatus was used at Sanyinjiao (SP 6) in acupoint group, and at non-acupoint spot (the midpoint from the radial arterial pulse throbbing place on the radial side of the transverse crease of the wrist to the radial end of biceps tendon of the elbow) in non-acupoint group, 30 min for each one. The conventional labor care was adopted in blank group. The differences were observed in the first active stage, the second stage and the third stage of the labor as well as the safety of mothers and infants among three groups.</p><p><b>RESULTS</b>The durations of the first active stage of labor [(123.05 +/- 96.401) min] and the second stage [(37.407 +/- 22.390) min] in acupoint group were shorter than those [(171.40 +/- 94.339) min, (49.517 +/- 25.373) min] in non-acupoint group, as well as those [(178.79 +/- 97.231) min, (53.684 +/- 20.087) min] in blank group separately (all P < 0.05). It was discovered that the progressions of the first active stage and the second stage of labor were accelerated in acupoint group, and there was no statistically significant difference in the third stage of labor among the three groups (all P > 0.05). Bleeding amount after childbirth in acupoint group was less than those in non-acupoint group and blank group (both P < 0.05), and Apgar scores of newborns in acupoint group and non-acupoint group were higher than that in blank group (both P < 0.05).</p><p><b>CONCLUSION</b>Moxibustion at Sanyinjiao (SP 6) can shorten the process of childbirth, reduce postpartum bleeding and has no harmful impact on mothers and infants.</p>


Assuntos
Adulto , Feminino , Humanos , Gravidez , Adulto Jovem , Pontos de Acupuntura , Trabalho de Parto , Moxibustão
14.
Artigo em Chinês | WPRIM | ID: wpr-449270

RESUMO

Compound traditional Chinese medicine database was established by collecting 176 compound formulas for dysmenorrhea in the last twenty years. The proportion and frequency of herbal medicine were analyzed and the main herbs with mono-target or multi-target in the compound formulas were selected with simple and multiple linear regression. The linear regression equations were listed and the clinical effects of the compound formulas were evaluated. Of 173 herbs used in the compound formulas, the proportion and frequency of the herbs for activating blood and transforming stasis and regulating qi flow were high in the application. The dosage interval for 20 herbs in common use was estimated. Main herbs with mono-target or multi-target used in the compound formulas were selected with simple and multiple linear regression. The total effectiveness rate of the 176 compound formulas was tested with simple linear regression, and 167 compound formulas (94.84 % of the total) had the absolute error less than 4%. Herbs for activating blood and transforming stasis and regulating qi flow are most commonly used in treatment of dysmenorrhea. Clinical effects of the compound formulas could be forecast with stepwise regression equation.

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