Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 52
Filtrar
Mais filtros

Base de dados
País/Região como assunto
Tipo de documento
Intervalo de ano de publicação
1.
Health Data Sci ; 4: 0103, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38486622

RESUMO

Importance: Narrative medicine (NM), in which patient stories play a crucial role in their diagnosis and treatment, can potentially support a more holistic approach to patient care than traditional scientific ones. However, there are some challenges in the implementation of narrative medicine, for example, differences in understanding illnesses between physicians and patients and physicians' increased workloads and overloaded schedules. This paper first presents a review to explore previous visualization research for narrative medicine to bridge the gap between visualization researchers and narrative medicine experts and explore further visualization opportunities. Highlights: The review is conducted from 2 perspectives: (a) the contexts and domains in which visualization has been explored for narrative medicine and (b) the forms and solutions applied in these studies. Four applied domains are defined, including understanding patients from narrative records, medical communication, medical conversation training in education, and psychotherapy and emotional wellness enhancement. Conclusions: A future work framework illustrates some opportunities for future research, including groups of specific directions and future points for the 4 domains and 3 technological exploration opportunities (combination of narrative and medical data visualization, task-audience-based visual storytelling, and user-centered interactive visualization). Specifically, 3 directions of future work in medical communication (asynchronous online physician-patient communication, synchronous face-to-face medical conversation, and medical knowledge dissemination) were concluded.

2.
BMC Complement Med Ther ; 23(1): 359, 2023 Oct 10.
Artigo em Inglês | MEDLINE | ID: mdl-37817236

RESUMO

BACKGROUND: Diabetic foot ulcers often affect tendon tissue. Consequently, the infection may spread proximally along the tendon, leading to amputation or even the death of patients. Exposed, degenerated, and necrotic tendons are key factors affecting the healing of diabetic foot ulcers. The effective treatment of the tendon involvement may positively affect the prognosis. In clinical practice, treatment with Shengji ointment and bromelain induces islands of granulation tissue on the denatured tendon surface, which gradually grows and merges. Ideally, the exposed tendon is covered entirely by granulation tissue. This trial aims to assess the effect of a combined treatment regime of Shengji ointment, which has been shown to regenerate muscle tissue and pineapple protease in preventing the loss of function and amputation caused by tendon necrosis. This trial will provide high-quality evidence for the effectiveness of this combination in healing diabetic ulcers with tendon necrosis. METHODS: The sample size will be 180 patients who will be randomly assigned 1:1 to a treatment group (90 patients) using Shengji ointment combined with bromelain and a control group (90 patients) using hydrocolloid dressing. Both groups will continue their conventional treatments, such as blood glucose and blood pressure medication, lipid regulation, antiplatelets, and others. The primary outcome will be the wound coverage with granulation tissue. Secondary outcomes will be the wound healing rate, amputation extent (where needed), time to granulation, and the Maryland Foot Score. Other efficacy outcomes will be the time to debridement of necrotic tendon tissue and granulation tissue score. DISCUSSION: This study will treat patients with diabetic foot ulcers with exposed, degenerated, and necrotic tendons with Shengji ointment and bromelain. The trial aims to promote regeneration and healing, to preserve the limb and its function, and to develop a comprehensive and effective protocol that can be applied to promote the healing of exposed tendons in diabetic foot wounds. TRIAL REGISTRATION: ChiCTR2000039327 ; date of registration: 2020-10-23.


Assuntos
Diabetes Mellitus , Pé Diabético , Humanos , Pé Diabético/tratamento farmacológico , Pé Diabético/complicações , Bromelaínas , Tendões , Necrose/complicações , Ensaios Clínicos Controlados Aleatórios como Assunto
3.
Medicine (Baltimore) ; 102(31): e34590, 2023 Aug 04.
Artigo em Inglês | MEDLINE | ID: mdl-37543789

RESUMO

This study aimed to investigate the research hotspots and global trends of acupuncture in the treatment of headaches from 1974 to 2022. The Web of Science core collection database and literature related to acupuncture for headache treatment were retrieved. The CiteSpace (version 5.1.R8) and VOSviewer (version 1.6.19) software perform collaborative network analysis on the information of countries, academic institutions, authors, and co-occurrence network analysis on keywords, co-cited journals, and references. A total of 841 studies were included. Overall, the number of publications has increased over the past 5 decades. We identified and analyzed the countries, institutions, authors, and journals that were most active in the domain of acupuncture treatment for headaches. The most productive countries were the United States and China. Chengdu University of Traditional Chinese Medicine was the most productive institution and Linde Klaus was the most productive author. Cephalalgia was the most productive and co-cited journal, whereas Lancet had the highest impact factor. The research hotspots mainly focus on headache, migraine, tension headache, electroacupuncture, and acupuncture. Research trends have mainly focused on acupuncture therapy and its curative effects, migraine without aura, paroxysmal migraine, and the mechanism of acupuncture treatment. The main research hotspots and frontier trends were the therapeutic effect and mechanism of acupuncture for headaches. The mechanism of acupuncture in the treatment of headache mainly focused on the neural mechanism by multimodal MRI.


Assuntos
Terapia por Acupuntura , Transtornos de Enxaqueca , Cefaleia do Tipo Tensional , Humanos , Bibliometria , Cefaleia/terapia
4.
J Ethnopharmacol ; 314: 116662, 2023 Oct 05.
Artigo em Inglês | MEDLINE | ID: mdl-37207880

RESUMO

ETHNOPHARMACOLOGICAL RELEVANCE: Astragali Radix (AR), the root of Astragalus membranaceus (Fisch.) Bge. or Astragalus membranaceus (Fisch.) Bge. var. mongholicus (Bge.) Hsiao, known as Huangqi in traditional Chinese medicine, has been widely used in traditional Chinese medicine prescriptions for acute and chronic liver injury. AR was the most important medicine in a Chinese traditional prescription called Huangqi Decoction (HQD), has been used to treat chronic liver diseases since the 11th century. In particular, its major active ingredient, Astragalus polysaccharide (APS), has demonstrated promising effects on inhibiting hepatic fibrosis. However, to date, the effect of APS against alcohol-induced hepatic fibrosis and its underlying molecular mechanisms remains unknown. AIMS OF THE STUDY: This study aimed to explore the effect and potential molecular mechanisms of APS against alcohol-induced hepatic fibrosis by using network pharmacology and experimental validation. MATERIALS AND METHODS: The potential targets and underling mechanism of AR in alcoholic liver fibrosis were first predicted using network pharmacology, followed by experimental validation using SD rat model with alcohol-induced hepatic fibrosis. Further, the predicted candidate signaling pathways and potential target polymerase I and transcript release factor (PTRF) were combined to explore the multifaceted mechanism of APS against alcohol-induced hepatic fibrosis. Finally, overexpression of PTRF was explored to reveal the role of PTRF in the mechanism of APS against alcohol-induced hepatic fibrosis. RESULT: APS exerted potent anti-hepatic fibrosis effects by downregulating genes involved in the Toll-like receptor 4 (TLR4)/JNK/NF-κB/MyD88 pathway. Notably, APS treatment ameliorated the hepatic damage by inhibiting the overexpression of PTRF and decreasing the co-localisation of TLR4/PTRF. Overexpression of PTRF induced reversal of the protective effects of APS on alcohol-induced hepatic fibrosis. CONCLUSION: This study indicated that APS may alleviate alcohol-induced hepatic fibrosis by inhibiting the activation of PTRF and TLR4/JNK/NF-κB/MyD88 pathway, which provides a scientific elucidation for the mechanisms of APS on the anti-hepatic fibrosis activity and presents a promising therapeutic approach for treating hepatic fibrosis.


Assuntos
Astrágalo , NF-kappa B , Ratos , Animais , NF-kappa B/metabolismo , Fator 88 de Diferenciação Mieloide/metabolismo , Receptor 4 Toll-Like/metabolismo , Ratos Sprague-Dawley , Cirrose Hepática/induzido quimicamente , Cirrose Hepática/tratamento farmacológico , Polissacarídeos/farmacologia
5.
Zhongguo Zhen Jiu ; 43(3): 245-51, 2023 Mar 12.
Artigo em Chinês | MEDLINE | ID: mdl-36858383

RESUMO

OBJECTIVE: To observe the clinical effect of acupuncture for delayed sleep-wake phase disorder (DSWPD). METHODS: A total of 84 patients with DSWPD were randomized into an observation group (42 cases, 2 cases dropped off) and a control group (42 cases, 3 cases dropped off). On the basis of sleep hygiene education, acupuncture was applied at Shenmai (BL 62), Zhaohai (KI 6), Hegu (LI 4), Taichong (LR 3), Zusanli (ST 36) and Sanyinjiao (SP 6) in the observation group, while placebo acupuncture was applied at the same acupoints in the control group. The treatment lasted for 8 weeks, once every other day, 3 times a week in the 1st to 4th weeks; once every 3 days, 2 times a week in the 5th to 8th weeks. Before and after treatment, the actigraphy (ACT) indexes of objective sleep (total time of stay in bed, total sleep time, sleep efficiency, the number of awakenings and the wake time after falling asleep) and plasma cortisol (CORT) level were observed; before and after treatment and in follow-up of 1, 3 months after treatment, the scores of morningness-eveningness questionnaire (MEQ), insomnia severity index (ISI), fatigue severity scale (FSS) and Epworth sleepiness scale (ESS) were observed in the two groups. RESULTS: Compared before treatment, the total sleep time was prolonged, the sleep efficiency was improved, the number of awakenings was reduced, and the wake time after falling asleep was shortened after treatment in the observation group (P<0.01, P<0.05), and those in the observation group after treatment were superior to the control group (P<0.01, P<0.05). Compared before treatment, the MEQ scores after treatment in both groups and in the follow-up of 1, 3 months after treatment in the observation group were increased (P<0.01), and the MEQ score of each time point after treatment in the observation group was higher than the control group (P<0.01). The scores of ISI, FSS and ESS after treatment, and the scores of ISI、ESS in follow-up of 1, 3 months after treatment in the observation group were decreased compared with those before treatment (P<0.01, P<0.05), and in the observation group, the scores of ISI, FSS and ESS of each time point after treatment were lower than those in the control group (P<0.01, P<0.05). After treatment, the plasma CORT level in the observation group was decreased compared with that before treatment and that in the control group (P<0.01, P<0.05). CONCLUSION: Acupuncture can improve the sleep and wake phase of patients with DSWPD, improve sleep quality and daytime function, and its mechanism may be related to the down-regulation of plasma CORT level.


Assuntos
Terapia por Acupuntura , Humanos , Sono , Pontos de Acupuntura , Regulação para Baixo , Duração do Sono
6.
Aesthetic Plast Surg ; 47(1): 423-429, 2023 02.
Artigo em Inglês | MEDLINE | ID: mdl-36168069

RESUMO

OBJECTIVE: To investigate whether hyperbaric oxygen therapy can improve the survival rate of fat transplantation and analyze the possible mechanisms. METHODS: Ninety SD rats were randomly divided into 3 groups. All the rats were cut into pieces with about 5 mL of fat from the abdominal cavity, rinsed with normal saline for 3 times, and cleaned with cotton pad adsorption method. Then, 3 ml was removed, divided into 3 parts, and injected into three adjacent but not touching parts of the back. Group A received 1h/d hyperbaric oxygen therapy, group B received 2 h/d hyperbaric oxygen therapy, and group C received no hyperbaric oxygen therapy. The hyperbaric oxygen therapy lasted for 10 consecutive days. Fat grafts from one site were randomly removed at 2, 4, and 6 weeks after surgery, respectively. ① the survival rate of fat transplantation in three groups was compared. ② observe the pathological section; ③ immunohistochemistry was used to detect and compare the expression of vascular endothelial growth factor. RESULTS: The survival rate of fat transplantation in group A was the highest. After subcutaneous transplantation of 1 ml of fat and 1 hour/day of continuous hyperbaric oxygen treatment for 10 days, the fat survival rates were 0.796 ± 0.071 ml, 0.644 ± 0.151 ml, and 0.473 ± 0.127 ml at the second, fourth, and sixth weeks, respectively. The survival rate of fat transplantation in group B was the second. After subcutaneous transplantation of 1 ml of fat and 2 hour/day of continuous hyperbaric oxygen treatment for 10 days, the survival rate of fat was 0.624 ± 0.220 ml, 0.494 ± 0.125 ml, and 0.329 ± 0.153 ml at the second, fourth, and sixth weeks, respectively. The survival rate of fat transplantation in group C was the lowest. After subcutaneous transplantation of 1 ml of fat and no hyperbaric oxygen treatment for 10 days, the fat survival rates were 0.461 ± 0.132 ml, 0.290 ± 0.112 ml and 0.169 ± 0.091 ml at the second, fourth, and sixth weeks, respectively. We have made changes in the abstract of the article and marked in red color. CONCLUSION: Hyperbaric oxygen therapy is conducive to the survival of transplanted fat. Importantly, a short period of hyperbaric oxygen therapy (1 h/d) can promote the survival of transplanted fat. NO LEVEL ASSIGNED: This journal requires that authors assign a level of evidence to each article. For a full description of these Evidence-Based Medicine ratings, please refer to the Table of Contents or the online Instructions to Authors www.springer.com/00266 .


Assuntos
Tecido Adiposo , Fator A de Crescimento do Endotélio Vascular , Ratos , Animais , Ratos Sprague-Dawley , Taxa de Sobrevida , Tecido Adiposo/transplante , Transplante Autólogo , Oxigênio
7.
Medicine (Baltimore) ; 101(42): e30995, 2022 Oct 21.
Artigo em Inglês | MEDLINE | ID: mdl-36281119

RESUMO

BACKGROUND: Leukopenia is one of most common types of myelosuppression secondary to chemotherapy. The main methods used to treat leukopenia after chemotherapy have various limitations. Several studies have reported the role of acupuncture in the prevention and treatment of leukopenia, but the quality of the study is uneven. Here, we used a systematic review and meta-analysis to evaluate the efficacy and safety of acupuncture in the treatment of leukopenia after chemotherapy. METHODS: We searched the databases of the Cochrane Central Register of Controlled Trials (CENTRAL), the Cochrane Library, Medline (via PubMed), EMBASE (via embase.com), the China National Knowledge Infrastructure Database (CNKI), the Chinese Biomedical Literature Database (CBM), the Chinese Scientific Journal Database (VIP database) and the Wanfang database to collect randomized clinical trials (RCTs) on acupuncture in the treatment of leukopenia after chemotherapy. Cochrane systematic reviewer manual 5.2 was used for bias risk assessment. RevMan5.3 statistical software was applied for statistical analysis. RESULTS: Fifteen RCTs were included in this study, with a total of 1130 patients. Meta-analysis results showed that acupuncture can increase white blood cell (WBC) count after chemotherapy [MD = 1.18, 95% CI (0.80, 1.57), P < .00001], reduce the incidence of myelosuppression [RR = 0.38, 95% CI (0.23, 0.63), P = .0002], and improve the clinical treatment effectiveness [RR = 1.20, 95% CI (1.00, 1.43), P = .05]. The differences were statistically significant. CONCLUSION: It is recommended to use acupuncture in the treatment of leukocytopenia after chemotherapy, but this result needs further research for verification.


Assuntos
Terapia por Acupuntura , Acupuntura , Antineoplásicos , Leucopenia , Humanos , Terapia por Acupuntura/métodos , Leucopenia/induzido quimicamente , Leucopenia/terapia , Contagem de Leucócitos , Antineoplásicos/efeitos adversos
8.
Clin Res Hepatol Gastroenterol ; 46(9): 101976, 2022 11.
Artigo em Inglês | MEDLINE | ID: mdl-35710041

RESUMO

OBJECTIVES: Intensive efforts have been made in the area of identifying drug resistance modulators from traditional Chinese medicine. Various natural plant extracts have been reported for their reversal effect of drug resistance in cancers. This study was to assess the reversal potential of Curcumae longae Rhizoma extract (CLRE) in 5-Fluorouracil (5-Fu) resistance to colon cancer and explore its underly mechanism. METHODS: Increased concentrations of 5-Fu were used to culture SW480. A series of concentrations of CLRE were used to treat the 5-Fu resistant SW480 cells. WST-8 assay was used to detect the cell viability. Cell apoptosis was assessed by SuperView™ 488 Caspase-3 Assay Kit. The quantification of mentioned factors was archived by RT-qPCR. Network pharmacology analysis was used to explore the target of CLRE. RESULTS: 5-Fu resistant cell line (SW480/5-FuR) was established. The IC50 value of CLRE against SW480/5-FuR was 181.0 ± 14.12 µg/ml. CLRE can resensitize the SW480/5-FuR to 5-Fu by inhibiting cell growth. The combination treatment (CLRE+5-Fu) induced cell apoptosis via inhibition of bcl-2 and activation of caspase-3 and bax. Three active ingredients from CLRE were identified. TLR4 was targeted by these three ingredients and linked these ingredients to PI3K/Akt/mTOR pathway. The levels of TLR4, PI3K, AKT1, and mTORC1 mRNA were decreased when 5-Fu was combined with CLRE. CONCLUSIONS: CLRE could reverse 5-Fu resistance in colon cancer by inactivating TLR4/PI3K/AKT/mTORC1 pathway. This finding might provide a molecular basis and a valuable direction for further clinical applications and research for treating 5-Fu resistant colon cancer.


Assuntos
Neoplasias do Colo , Fluoruracila , Humanos , Fluoruracila/farmacologia , Fluoruracila/uso terapêutico , Proteínas Proto-Oncogênicas c-akt , Fosfatidilinositol 3-Quinases , Caspase 3 , Receptor 4 Toll-Like , Linhagem Celular Tumoral , Resistencia a Medicamentos Antineoplásicos/genética , Serina-Treonina Quinases TOR , Proliferação de Células , Apoptose , Neoplasias do Colo/tratamento farmacológico , Extratos Vegetais/farmacologia , Extratos Vegetais/uso terapêutico , Alvo Mecanístico do Complexo 1 de Rapamicina
10.
Biochem Biophys Res Commun ; 599: 106-112, 2022 04 09.
Artigo em Inglês | MEDLINE | ID: mdl-35180469

RESUMO

OBJECTIVE: To explore whether hyperbaric oxygen therapy(HBO) can promote weight loss and recovery of hyperlipidemia in rats, and to explore the possible mechanism. METHODS: 180 SD rats were divided into 6 groups with 30 rats in each group. The first 3 groups were intraperitoneally injected with fat emulsion to make hyperlipidemia models, and the last three groups were injected with normal saline. The first three groups received 3 h/d, 6 h/d, 0 h/d HBO therapy respectively, and the last three groups received the same treatment. Body weight, blood lipid and transaminase were measured in all SD rats, and pathological sections of heart, liver and kidney were observed. RESULTS: Hyperlipidemia group treated with 3 h/d hyperbaric oxygen has the effect of reducing hyperlipidemia compared with other groups and has the effect of heart and kidney protection. Although 6 h/d HBO therapy has a more noticeable effect on lowering hyperlipidemia, it has more apparent liver damage effects. The normal group treated with HBO for 3 h/d or 6 h/d both have the effect of weight loss, and the impact of liver injury is not apparent. However, the 6 h/d HBO therapy group had a more prominent weight loss effect. CONCLUSION: HBO therapy can promote weight loss and reduce hyperlipidemia. Our experiments have shown that 6 h/d and 3 h/d HBO therapy reduces blood lipids in hyperlipidemia SD rats. However, the former has noticeable liver damage effects on SD rats, and the latter is adequate for protecting the liver in normal or hyperlipidemia SD rats. At the same time, it has been proved that HBO therapy has cardio and kidney protection in hyperlipidemia SD rats.


Assuntos
Oxigenoterapia Hiperbárica/métodos , Hiperlipidemias/terapia , Redução de Peso/fisiologia , Animais , Oxigenoterapia Hiperbárica/instrumentação , Rim/fisiologia , Lipídeos/sangue , Fígado/fisiologia , Masculino , Ratos Sprague-Dawley
11.
Small ; 17(52): e2105033, 2021 12.
Artigo em Inglês | MEDLINE | ID: mdl-34729905

RESUMO

The specific coagulation in the tumor vasculature has the potential for the ablation of solid tumors by cutting off the blood supply. However, the safe delivery of effective vessel occluding agents in the tumor-specific embolization therapy remains challenging. Herein, it is reported that the photothermal responsive tumor-specific embolization therapy based on thrombin (Thr) is delivered by intravenous injection via the phase-change materials (PCM)-based nanoparticles. The wax sealing profile of PCM enables safe delivery and prevents the preleakage of Thr in the blood circulation. While in the tumor site, the thermal effect induced by IR780 triggers the melting of PCM and rapidly releases Thr to generate coagulation in the tumor blood vessels. Based on the safe delivery and controllable release of Thr, thermal responsive tumor-specific embolization therapy could be achieved with high efficiency and no significant damage to normal organs and tissues. The safe administration of Thr to induce vascular infarction in tumors based on PCM nanoparticles in this work shows a promising strategy for improving the therapeutic specificity and efficacy of coagulation-based tumor therapy.


Assuntos
Hipertermia Induzida , Nanopartículas , Neoplasias , Animais , Linhagem Celular Tumoral , Sistemas de Liberação de Medicamentos , Humanos , Camundongos , Camundongos Endogâmicos BALB C , Neoplasias/tratamento farmacológico , Fototerapia , Trombina
12.
Sci Total Environ ; 795: 148824, 2021 Nov 15.
Artigo em Inglês | MEDLINE | ID: mdl-34246150

RESUMO

This study evaluated the influence of different volume ratios of the anoxic-to-aerobic zone (Vano/Vaer) on the enhancement of nitrogen and phosphorus removal in an integrated fixed-film activated sludge (IFAS) system. As the Vano/Vaer increased from 1:2 to 2:1, the removal of organic carbon, nitrogen and phosphorus nutrients of the IFAS system was improved. At Vano/Vaer = 1:1, the removal effect of nitrogen and phosphorus nutrients was optimal, and the average removal rates of COD, NH4+-N, TN, and TP of the system reached 90 ± 3.2%, 98.2 ± 1.4%, 88.9 ± 2.2%, and 89.1 ± 2.7%, respectively. As the volume of the anoxic zone continued to increase, the denitrifying phosphate-accumulating capacity of the system was enhanced, and the highest ratio of specific anoxic and aerobic phosphorus uptake rate could reach 65.3%. Analysis of the molecular evaluation showed that, the proportion of nitrifying bacteria in the biofilm gradually increased as Vano increased. Moreover, denitrifying phosphate-accumulating organisms (DNPAOs), ammonia-oxidizing archaea (AOA), and anaerobic ammonium oxidizing (Anammox) bacteria were all enriched all showed enrichment in the biofilm of fiber carriers, which further strengthened the system's synergistic removal of nitrogen and phosphorus.


Assuntos
Reatores Biológicos , Esgotos , Desnitrificação , Nitrogênio , Nutrientes , Fósforo , Eliminação de Resíduos Líquidos
13.
Anal Methods ; 13(29): 3218-3226, 2021 07 29.
Artigo em Inglês | MEDLINE | ID: mdl-34190226

RESUMO

Thermo-responsive nanogels, poly(NIPAM-AAM) were prepared by a facile method of free radical one-pot precipitation based on monomeric N-isopropylacrylamide (NIPAM). At the same time, surface carboxyl group-modified fluorescent conjugated polymer nanoparticles (PNPs-COOH) were immobilized in the nanogel networks by hydrogen bonding to show bright green photoluminescence and outstanding thermo-responsive properties with a typical two-phase Tai Chi structure. Poly(NIPAM-AAm)-PNPs-COOH displays a larger change of hydrodynamic diameter (Dh) and a reversible volume transition from ∼150 nm at 40 °C to ∼1.0 µm at 4 °C. The change will cause apoptosis of cells to finish flash chill treatment. Meanwhile, the fluorescence of poly(NIPAM-AAm)-PNPs-COOH demonstrates reversible quenching and recovery with the expansion and collapse of the nanogel network induced by temperature changes. In addition, when adding Fe3+, the fluorescence of poly(NIPAM-AAm)-PNPs-COOH can be quenched due to the chelation between the PNPs-COOH and Fe3+ and then recovered in the presence of hydrogen sulfide because the chelate is broken; this was attributed to the stronger affinity between Fe3+ and S2-. Therefore, the fluorescence nanoplatform, Fe3+/poly(NIPAM-AAm)-PNPs-COOH, was successfully used to detect endogenous hydrogen sulfide in living A549 cells.


Assuntos
Sulfeto de Hidrogênio , Nanopartículas , Géis , Nanogéis , Polímeros
14.
Front Genet ; 12: 661296, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-33968137

RESUMO

Dendrobium officinale is a kind of traditional Chinese herbal medicine. Its flowers could be used as health care tea for its aroma flavor and medicinal value. Most recent studies demonstrated that terpenoids are the main components of the aromatic compounds in the flowers, but the biosynthesis of terpenoids is poorly understood in D. officinale. In the experiment, the flowers from two cultivars of D. officinale with different smells were collected. The transcriptome analysis and combined volatile terpenoids determination were performed to identify the genes related to the biosynthesis of the terpenoids. The results showed that the different products of volatile terpenoids are α-thujene, linalool, α-terpineol, α-phellandrene, γ-muurolene, α-patchoulene, and δ-elemene in two cultivar flowers. The transcriptome analysis detected 25,484 genes in the flowers. And 18,650 differentially expressed genes were identified between the two cultivars. Of these genes, 253 genes were mapped to the terpenoid metabolism pathway. Among these genes, 13 terpene synthase (TPS) genes may have correlations with AP2/ERF, WRKY, MYB, bHLH, and bZIP transcription factors by weighted gene co-expression network analysis (WGCNA). The transcription factors have regulatory effects on TPS genes. These results may provide ideas for the terpenoid biosynthesis and regulatory network of D. officinale flowers.

15.
Artigo em Inglês | MEDLINE | ID: mdl-33981351

RESUMO

Parkinson's disease (PD) is a common neurodegenerative disease in middle-aged and older adults. Abnormal proteins such as α-synuclein are essential factors in PD's pathogenesis. Autophagy is the main participant in the clearance of abnormal proteins. The overactive or low function of autophagy leads to autophagy stress. Not only is it difficult to clear abnormal proteins but also it can cause damage to neurons. In this article, the effects of natural products ingredients, such as salidroside, paeoniflorin, curcumin, resveratrol, corynoxine, and baicalein, on regulating autophagy and protecting neurons were discussed in detail to provide a reference for the research and development of drugs for the treatment of PD.

16.
J Mater Chem B ; 9(18): 3756-3777, 2021 05 12.
Artigo em Inglês | MEDLINE | ID: mdl-33870980

RESUMO

Metal-Organic Frameworks (MOFs) are constructed from metal ions/cluster nodes and functional organic ligands through coordination bonds. Owing to the advantages of diverse synthetic methods, easy modification after synthesis, large adsorption capacity for heavy metals, and short equilibrium time, considerable attention has recently been paid to MOFs for tumor phototherapy. Through rational tuning of metal ions and ligands, MOFs present abundant properties for various applications. Light-triggered phototherapy, including photodynamic therapy (PDT) and photothermal therapy (PTT), is an emerging cancer treatment approach. Nanosized MOFs can be applied as phototherapeutic agents to accomplish phototherapy with excellent phototherapeutic efficacy. This review outlines the latest advances in the field of phototherapy with various metal ion-based MOFs.


Assuntos
Estruturas Metalorgânicas/química , Nanoestruturas/química , Neoplasias/terapia , Humanos , Luz , Metais/química , Neoplasias/patologia , Fototerapia , Teoria Quântica , Espécies Reativas de Oxigênio/metabolismo
17.
J Ethnopharmacol ; 266: 113430, 2021 Feb 10.
Artigo em Inglês | MEDLINE | ID: mdl-33011366

RESUMO

ETHNOPHARMACOLOGICAL RELEVANCE: Astragalus mongholicus, Solanum nigrum Linn, Lotus plumule, Ligusticum are widely used traditional herbal medicines for cancer treatment in China. They were typical drugs selected from Gubenyiliu II and series of formula (GYII), which were developed on the foundation of YIQIHUOXUEJIEDU theory. In the present study, four active ingredients (Astragaloside IV, α-solanine, neferine, and 2,3,5,6-tetramethylpyrazine) derived from medicines above were applied in combination as SANT. AIM OF THE STUDY: Triple-negative breast cancer (TNBC) is a serious threat to women's health worldwide. Heparanase (HPSE) is often up-regulated in breast cancer with the properties of facilitating tumorigenesis and influencing the autophagy process in cancer cells. This study aimed at evaluating the anti-tumor potential of SANT in treating HPSE related TNBC both in-vitro and in-vivo. MATERIALS AND METHODS: In this study, we explored the correlation between HPSE expression and survival of breast cancer patients in databases. We performed MTS, trans-well and wound scratch assays to assess the impact of SANT on cell proliferation and migration. Confocal microscopy observation and western blots were applied to verify the autophagy flux induced by SANT. Mice models were employed to evaluate the efficacy and safety of SANT in-vivo by tumor weights and volumes or serum index, respectively. To analyze the underlying mechanisms of SANT, we conducted human autophagy PCR array and angiogenesis proteome profiler on tumor tissues. RESULTS: Patients with elevated HPSE expression were associated with a poor outcome in both RFS (P = 1.7e-12) and OS (P = 0.00016). SANT administration significantly inhibited cancer cells' proliferation and migration, enhanced autophagy flux, and slightly reduced the active form of HPSE in-vitro. SANT also suppressed tumor growth and angiogenesis in-vivo. Human autophagy PCR array results indicated that SANT increased the ATG16L1, ATG9B, ATG4D gene expressions while decreased TMEM74 and TNF gene expressions.Angiogenesis proteome profiler results showed SANT reduced protein level of HB-EGF, thrombospondin-2, amphiregulin, leptin, IGFBP-9, EGF, coagulation factor III, and MMP-9 (pro and active form) in tumor, raised the protein expression of serpin E1 and platelet factor 4. CONCLUSIONS: These findings indicated that herbal compounds SANT may be a promising candidate in anti-cancer drug discovery. It also provides novel strategies for using natural compounds to achieve optimized effect.


Assuntos
Antineoplásicos Fitogênicos/farmacologia , Autofagia/efeitos dos fármacos , Medicamentos de Ervas Chinesas/farmacologia , Neoplasias de Mama Triplo Negativas/tratamento farmacológico , Inibidores da Angiogênese/administração & dosagem , Inibidores da Angiogênese/farmacologia , Animais , Antineoplásicos Fitogênicos/administração & dosagem , Linhagem Celular Tumoral , Proliferação de Células/efeitos dos fármacos , Medicamentos de Ervas Chinesas/administração & dosagem , Feminino , Regulação Neoplásica da Expressão Gênica/efeitos dos fármacos , Glucuronidase/genética , Humanos , Camundongos , Camundongos Endogâmicos BALB C , Camundongos Nus , Neovascularização Patológica/tratamento farmacológico , Neovascularização Patológica/patologia , Neoplasias de Mama Triplo Negativas/genética , Neoplasias de Mama Triplo Negativas/patologia , Ensaios Antitumorais Modelo de Xenoenxerto
18.
Artigo em Inglês | MEDLINE | ID: mdl-32802112

RESUMO

OBJECTIVE: To study the mechanism of Huayu Wan on the metastasis of Lewis lung cancer in mice via the platelet pathway. METHOD: Construction of the lung metastasis model by injection of Lewis cells through the tail vein. The next day, 72 mice were randomly divided into the Huayu Wan group (HYW), the aspirin group, the control group, and the normal group . Treatment was given for 5 days per week for a total of 16 days. The size and distribution of lung metastases were observed. Thromboelastography was used to detect platelet function, flow cytometry was used to analyze platelet activation, and ELISA was used to detect platelet tumor metastasis-related factor expression. RESULT: Lung weight in the control group was significantly higher than that in the HYW group (P < 0.05). The distribution of lung metastases in the control group was obviously more than that in the HYW group. The thromboelastogram showed that the R value of the control group was significantly lower than the normal group, while the R values of the HYW and aspirin groups were higher than the control group (P < 0.05). Flow cytometry analysis showed that the expression of CD62P in platelet-rich plasma in the control group was significantly higher than that in the normal group, while the expression of CD62P in the HYW and aspirin groups was lower than that in the control group (P < 0.05). In addition, ELISA showed that the expression of VEGF, bFGF, and CD62P in serum of the HYW group was significantly decreased than the control group (P < 0.05), and the expression of VEGF and bFGF in serum of the aspirin group was significantly decreased than the control group (P < 0.05). CONCLUSION: The mechanism of Huayu Wan inhibiting the metastasis of lung cancer in mice may be related to the improvement of blood hypercoagulability, the inhibition of platelet activation, and the expression of VEGF, bFGF, and CD62P.

19.
Biomaterials ; 240: 119845, 2020 05.
Artigo em Inglês | MEDLINE | ID: mdl-32085974

RESUMO

Photodynamic therapy (PDT) can destroy local tumor cells and induce effective antitumor immune responses, and has been applied in the treatment of patients with superficial solid tumors. Numerous systemic side effects of PDT, such as pain and skin photosensitivity, however, limit this therapeutic option. In addition, the immunosuppressive tumor microenvironment has been found to be another critical barrier for the antitumor immunity induced by PDT. Therefore, effectively enhancing the cytotoxicity to tumor cells of low-dose PDT and inhibiting the tumor immunosuppressive tumor microenvironment may be a feasible strategy to overcome these drawbacks of PDT. Here, a sorafenib and chlorin e6 co-loaded reactive oxygen species (ROS)-responsive nanoparticle (NP-sfb/ce6) is developed to improve antitumor responses by intratumoral release of sorafenib at the time of PDT. Under 660-nm laser irradiation, ROS produced by chlorin e6 (ce6) destruct the nanoparticles, resulting in boosted sorafenib cascade release. The rapidly released sorafenib acts synergistically with the low-dose PDT to inhibit tumor growth by inducing strong T cell-dependent local and systemic antitumor immune responses, reprograming the tumor immune microenvironment, and limiting the interaction between cytotoxic CD8+ T cells and immunosuppressive cells. This study provides new avenues for cascade-amplifying antitumor effects of photodynamic therapy.


Assuntos
Nanopartículas , Fotoquimioterapia , Porfirinas , Linfócitos T CD8-Positivos , Linhagem Celular Tumoral , Humanos , Imunoterapia , Fármacos Fotossensibilizantes/uso terapêutico , Sorafenibe
20.
Zhongguo Zhen Jiu ; 40(11): 1180-4, 2020 Nov 12.
Artigo em Chinês | MEDLINE | ID: mdl-33788485

RESUMO

OBJECTIVE: To observe the clinical effect on spinal low back pain (SLBP) in Air Force crew treated with novel thumbtack needling therapy and to analyze the relevant factors of the therapeutic effect. METHODS: A total of 120 Air Force crew with SLBP were randomized into a thumbtack needling group (40 cases), an external treatment group (40 cases, 1 case dropped off ) and a combined treatment group (40 cases, 1 case dropped off ). In the thumbtack needling group, the thumbtack needling therapy was adopted. The novel thumbtack needles were inserted at the lower No.6 region of the wrist-ankle acupuncture, Yaotongdian (EX-UE 7), Yaoyangguan (GV 3), etc. Each point was pressed and kneaded for 1 min each time, 3 or 4 times a day. The treatment for 3 days was taken as one course. At the interval of 2 days, 3 courses were required totally. In the external treatment group, shangshi zhitong plaster was compressed on the center of the tender site in the lumbar region, once daily, consecutively for 6 days as one course. At an interval of 1 day, 2 courses were required totally. In the combined treatment group, the treatments in the thumbtack needling group and the external treatment group were used in combination. Before and after treatment, McGill score and the score of Oswestry dysfunction index (ODI) were compared in the patients among the three groups. The average EMG (AEMG) and the mean power frequency (MPF) were analyzed by using JE-TB0810 electromyography (EMG) acquisition system to evaluate the erector spinae tension in the patients before and after treatment. The clinical effect was observed in the patient of each group and the safety was evaluated. Logistic analysis was performed on the relevant factors of therapeutic effect in the patients. RESULTS: Compared with the values before treatment, McGill scores and ODI scores were reduced (P<0.05), and AEMG and MPF increased in the patients of each group after treatment (P<0.05). After treatment, McGill scores and ODI scores in the thumbtack needling group and the combined treatment group were lower than those in the external treatment group (P<0.05), and AEMG and MPF were higher than the external treatment group (P<0.05). The total effective rates were 87.5% (35/40) and 87.2% (34/39) in the thumbtack needling group and the combined treatment group respectively and were higher than 64.1% (25/39) in the external treatment group (P<0.05). The incidence of the adverse reaction in the combined treatment group was higher than the other two groups (P<0.05). The weekly exercise frequency was the independent factor of the therapeutic effect (OR =12.166, P<0.001). CONCLUSION: The thumbtack needling therapy is significantly effective on spinal low back pain in Air Force crew and is of the safety. Hence, this therapy is applicable to be promoted in the primary care army hospital.


Assuntos
Terapia por Acupuntura , Dor Lombar , Pontos de Acupuntura , Eletromiografia , Humanos , Dor Lombar/terapia , Agulhas , Resultado do Tratamento
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA