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1.
Nature ; 629(8014): 1015-1020, 2024 May.
Artigo em Inglês | MEDLINE | ID: mdl-38811709

RESUMO

Asteroids with diameters less than about 5 km have complex histories because they are small enough for radiative torques (that is, YORP, short for the Yarkovsky-O'Keefe-Radzievskii-Paddack effect)1 to be a notable factor in their evolution2. (152830) Dinkinesh is a small asteroid orbiting the Sun near the inner edge of the main asteroid belt with a heliocentric semimajor axis of 2.19 AU; its S-type spectrum3,4 is typical of bodies in this part of the main belt5. Here we report observations by the Lucy spacecraft6,7 as it passed within 431 km of Dinkinesh. Lucy revealed Dinkinesh, which has an effective diameter of only 720 m, to be unexpectedly complex. Of particular note is the presence of a prominent longitudinal trough overlain by a substantial equatorial ridge and the discovery of the first confirmed contact binary satellite, now named (152830) Dinkinesh I Selam. Selam consists of two near-equal-sized lobes with diameters of 210 m and 230 m. It orbits Dinkinesh at a distance of 3.1 km with an orbital period of about 52.7 h and is tidally locked. The dynamical state, angular momentum and geomorphologic observations of the system lead us to infer that the ridge and trough of Dinkinesh are probably the result of mass failure resulting from spin-up by YORP followed by the partial reaccretion of the shed material. Selam probably accreted from material shed by this event.

2.
Integr Cancer Ther ; 22: 15347354231210870, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37962002

RESUMO

BACKGROUND AND OBJECTIVES: Safe and effective management of cancer-related pain is a worldwide challenge. In the search for treatment options, natural products used in Chinese herbal medicines (CHMs) have received attention in clinical studies for their effects on cancer-related pain. The objective of this systematic review is to evaluate the clinical evidence for topically applied CHMs as adjunctive treatments for cancer pain management. METHODS: Nine biomedical databases and 4 clinical trial registries were searched for randomized-controlled trials (RCTs) that reported measures of pain and/or quality of life. Risk of bias was assessed using the Cochrane tool. Meta-analysis employed mean difference (MD) with 95% confidence intervals (random effects). RESULTS: Twenty (20) RCTs (1636 participants) met the inclusion criteria. Meta-analyses were grouped based on the comparisons and outcome measures. For pain intensity, there was a greater reduction in the topical CHM group versus placebo (MD -0.72 [-1.04, -0.40]), no difference when compared to tramadol (MD -0.15 [-0.38, 0.08]), and a greater reduction when topical CHMs were combined with conventional analgesic medications (MD -0.67 [-0.93, -0.40]). Analgesic onset time was reduced in the CHM group compared to tramadol (MD -26.02 [-27.57, -24.47] minutes), and for CHMs combined with conventional medications (MD -19.17 [-21.83, -16.52] minutes). When CHMs were combined with analgesic medications, improvements were found for duration of analgesia (MD 1.65 [0.78, 2.51] hours), analgesic maintenance dose (MD -31.72 [-50.43, -13.01] milligrams/day), and quality of life. CONCLUSION: Addition of topical CHMs to conventional analgesic medications was associated with improved outcomes for pain intensity, some other pain-related outcomes, and measures of quality of life. Limitations included methodological issues in some studies and considerable heterogeneity in some pooled results.


Assuntos
Dor do Câncer , Neoplasias , Tramadol , Humanos , Dor do Câncer/tratamento farmacológico , Ensaios Clínicos Controlados Aleatórios como Assunto , Medicina Tradicional Chinesa , Analgésicos/uso terapêutico , Neoplasias/complicações , Neoplasias/tratamento farmacológico
3.
PLoS One ; 18(10): e0292138, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37797052

RESUMO

This systematic review and meta-analysis aims to: assess the effectiveness and safety of orally administered Chinese herbal medicines (CHMs) as adjuncts to the post-surgical management of chronic rhinosinusitis (CRS); inform clinicians of the current evidence; identify the best available evidence; and suggest directions for further research. Randomised controlled trials (RCTs) were identified from searches of nine databases plus clinical trial registries. Participants were adults and/or children diagnosed with sinusitis or rhinosinusitis, with or without nasal polyps, who had received surgery. Interventions were CHMs used orally following surgery for CRS as additions to conventional post-surgical management. Controls received conventional post-surgical management without CHMs. Studies reported results for Sino-Nasal Outcome Test (SNOT), visual analogue scales (VAS), Lund-Mackay computed tomography score (LM), Lund-Kennedy endoscopic score (LK), mucociliary transport time (MTT), mucociliary transport rate (MTR), mucociliary clearance (MC) or quality of life (QoL). Twenty-one RCTs were included. All used oral CHMs following functional endoscopic sinus surgery (FESS). The pooled results showed no significant difference between groups for SNOT-20 at the end of treatment (EoT) but there was a significant difference at follow up (FU) in favour of additional CHMs. The VAS for total nasal symptoms (VAS-TNS) showed greater improvements in the CHM groups at EoT and FU. Only FU data were reported for LM which showed greater improvement in the CHM groups. LK showed greater improvements at EoT and FU. The measures of mucociliary transport (MTT, MTR, and MC) each showed significantly greater improvement at EoT in the group that received additional CHMs. No study reported QoL. Adverse events were not serious, but reporting was incomplete. The meta-analyses suggested the addition of oral CHMs to conventional management following FESS may improve recovery. However, most studies were not blinded, and substantial heterogeneity was evident in some meta-analyses. Blinded studies are required to further investigate the roles of oral CHMs in post-surgical recovery. Systematic review registration number: The protocol was registered in PROSPERO (CRD42019119586).


Assuntos
Pólipos Nasais , Rinite , Sinusite , Adulto , Criança , Humanos , Rinite/tratamento farmacológico , Rinite/cirurgia , Sinusite/tratamento farmacológico , Sinusite/cirurgia , Endoscopia/métodos , Doença Crônica , Fitoterapia
4.
PLoS One ; 17(12): e0278492, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-36454862

RESUMO

This systematic review aims to assess the effects and safety of Chinese herbal medicines (CHMs) in the management of rhinosinusitis (RS); inform clinicians of the current state of the evidence; identify the best available evidence; and suggest further directions for research. Five English and four Chinese language databases, and four clinical trial registries were searched. Eligible studies were randomised controlled trials (RCTs). Participants were diagnosed with RS based on established criteria. Test interventions were CHMs administered orally and/or nasally, excluding injections and displacement techniques. Control interventions included placebos, no additional treatment, and conventional non-invasive treatments including pharmacotherapies and/or nasal irrigation, and/or inhalations. Polyposis and post-surgical recovery were excluded. Outcomes were Sino-Nasal Outcome Test (SNOT), visual analogue scales (VAS), Lund-Mackay computed tomography score (LM), Lund-Kennedy Endoscopic score (LK), Mucociliary transport time (MTT), Mucociliary transport rate (MTR), quality of life and adverse events (AEs). Risk of bias used the Cochrane tool. Meta-analysis in Review Manager 5.4.1 used random effects for mean difference (MD) or risk ratio (RR) with 95% confidence intervals. Heterogeneity was assessed as I2. Thirty-four RCTs were included, 30 of chronic RS (CRS) and four of acute RS (ARS). These enrolled 3,752 participants. Five RCTs blinded participants. For CRS, comparisons with placebo showed greater improvements in the CHM groups for SNOT-20 and VAS-TNS (total nasal symptoms). Blinded comparisons with pharmacotherapies showed no differences between groups in the degree of improvement for SNOT-20, VAS-TNS, and LM, suggesting these CHMs had similar effects, at least in the short term. In ARS, pooled results found improved scores on VAS-TNS and LK suggesting a benefit for combining these CHMs with pharmacotherapies. Limitations included inadequacies in study design and methodological reporting, and insufficient reporting of AEs. Heterogeneity in some pooled results precluded strong conclusions. Further well-designed studies are needed to test whether the results are replicable. Systematic review registration number: PROSPERO (CRD42019119586).


Assuntos
Sinusite , Humanos , China , Lavagem Nasal , Fitoterapia , Sinusite/tratamento farmacológico
5.
Acupunct Med ; 40(2): 133-141, 2022 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-34755569

RESUMO

OBJECTIVE: Given the existing evidence for the analgesic effect of acupuncture, the current study aimed to assess whether acupuncture could be feasible and manageable as an adjunctive therapy for cancer pain in a real-world hospital setting. METHODS: Thirty patients in an Oncology department with moderate or severe pain were recruited and randomized to an adjunctive acupuncture group or control group, who received pharmacotherapy for pain management without acupuncture. The duration of the treatment course was 1 week with a 2-week follow-up. In total, four acupuncture sessions were administered, on days 1/2/4/6 of the trial. Pain intensity was measured using a numerical rating scale (NRS) and the daily opioid dose was recorded. RESULTS: The overall trends favored acupuncture for both pain intensity and daily opioid consumption. The proportion of participants experiencing at least a 2-point reduction in the NRS at the end of the treatment was 93% (n = 14/15) for the acupuncture group and 57% (n = 8/14) for the control group (risk difference (RD) 36.1%, 95% confidence interval (CI) [7.4%-65.0%]; relative risk (RR) 1.63, 95% CI [1.02-2.62]; p = 0.04). There were no serious adverse events and no dropouts during the treatment. CONCLUSION: This pilot study showed that adding acupuncture to routine analgesia for patients with cancer pain was feasible and acceptable to patients. The clinical effects of adding acupuncture as an adjunctive therapy need to be further evaluated. CLINICAL TRIAL REGISTRATION NUMBER: ChiCTR1800017023 (Chinese Clinical Trial Registry).


Assuntos
Terapia por Acupuntura , Dor do Câncer , Neoplasias , Analgésicos Opioides/uso terapêutico , Dor do Câncer/tratamento farmacológico , Humanos , Neoplasias/complicações , Neoplasias/terapia , Manejo da Dor , Projetos Piloto
6.
Pharmacol Res ; 171: 105778, 2021 09.
Artigo em Inglês | MEDLINE | ID: mdl-34298110

RESUMO

The plant Sophora flavescens Ait. has been used in the clinical management of colorectal cancer (CRC). Its constituent compounds, notably the alkaloids matrine, oxymatrine, and sophoridine, have received considerable research attention in experimental models of CRC in vivo and in vitro. This review found that extracts of S. flavescens and/or its constituent compounds have been reported to inhibit CRC cell proliferation by inducing cell-cycle arrest at the G1 phase, inducing apoptosis via the intrinsic pathway, interfering in cancer metabolism, inhibiting metastasis and angiogenesis, regulating senescence and telomeres, regulating the tumour microenvironment and down-regulating cancer-related inflammation. In addition, matrine and oxymatrine reversed multi-drug resistance and enhanced the effects of chemotherapies. These anti-cancer effects were associated with regulation of several cellular signalling pathways including: MAPK/ERK, PI3K/AKT/mTOR, p38MAPK, NF-κB, Hippo/LATS2, TGF-ß/Smad, JAK/STAT3, RhoA/ROC, and Wnt/ ß-catenin pathways. These multiple actions in CRC suggest the alkaloids of S. flavescens may be therapeutic candidates for CRC management. Nevertheless, there remains considerable scope for future research into its flavonoid constituents, the effects of combinations of compounds, and the interaction between these compounds and anti-cancer drugs. In addition, more research is needed to investigate likely drug ligand-receptor interactions for each of the bioactive compounds.


Assuntos
Alcaloides/uso terapêutico , Antineoplásicos Fitogênicos/uso terapêutico , Neoplasias Colorretais/tratamento farmacológico , Quinolizinas/uso terapêutico , Sophora , Animais , Humanos , Fitoterapia , Matrinas
7.
Artigo em Inglês | MEDLINE | ID: mdl-32419824

RESUMO

BACKGROUND: Rheumatoid arthritis (RA) is an autoimmune disease characterized by multijoint swelling, pain, and destruction of the synovial joints. Treatments are available but new therapies are still required. One source of new therapies is natural products, including herbs used in traditional medicines. In China and neighbouring countries, natural products have been used throughout recorded history and are still in use for RA and its symptoms. This study used text-mining of a database of classical Chinese medical books to identify candidates for future clinical and experimental investigations of therapeutics for RA. METHODS: The database Encyclopaedia of Traditional Chinese Medicine (Zhong Hua Yi Dian) includes the full texts of over 1,150 classical books. Eight traditional terms were searched. All citations were assessed for relevance to RA. Results and Conclusions. After removal of duplications, 3,174 citations were considered. After applying the exclusion and inclusion criteria, 548 citations of traditional formulas were included. These derived from 138 books written from 206 CE to 1948. These formulas included 5,018 ingredients (mean, 9 ingredients/formula) comprising 243 different natural products. When these text-mining results were compared to the 18 formulas recommended in a modern Chinese Medicine clinical practice guideline, 44% of the herbal formulas were the same. This suggests considerable continuity in the clinical application of these herbs between classical and modern Chinese medicine practice. Of the 15 herbs most frequently used as ingredients of the classical formulas, all have received research attention, and all have been reported to have anti-inflammatory effects. Two of these 15 herbs have already been developed into new anti-RA therapeutics-sinomenine from Sinomenium acutum (Thunb.) Rehd. & Wils and total glucosides of peony from Paeonia lactiflora Pall. Nevertheless, there remains considerable scope for further research. This text-mining approach was effective in identifying multiple natural product candidates for future research.

9.
JAMA Oncol ; 6(2): 271-278, 2020 02 01.
Artigo em Inglês | MEDLINE | ID: mdl-31855257

RESUMO

Importance: Research into acupuncture and acupressure and their application for cancer pain has been growing, but the findings have been inconsistent. Objective: To evaluate the existing randomized clinical trials (RCTs) for evidence of the association of acupuncture and acupressure with reduction in cancer pain. Data Sources: Three English-language databases (PubMed, Embase, and CINAHL) and 4 Chinese-language biomedical databases (Chinese Biomedical Literature Database, VIP Database for Chinese Technical Periodicals, China National Knowledge Infrastructure, and Wanfang) were searched for RCTs published from database inception through March 31, 2019. Study Selection: Randomized clinical trials that compared acupuncture and acupressure with a sham control, analgesic therapy, or usual care for managing cancer pain were included. Data Extraction and Synthesis: Data were screened and extracted independently using predesigned forms. The quality of RCTs was appraised with the Cochrane Collaboration risk of bias tool. Random-effects modeling was used to calculate the effect sizes of included RCTs. The quality of evidence was evaluated with the Grading of Recommendations Assessment, Development and Evaluation approach. Main Outcomes and Measures: The primary outcome was pain intensity measured by the Brief Pain Inventory, Numerical Rating Scale, Visual Analog Scale, or Verbal Rating Scale. Results: A total of 17 RCTs (with 1111 patients) were included in the systematic review, and data from 14 RCTs (with 920 patients) were used in the meta-analysis. Seven sham-controlled RCTs (35%) were notable for their high quality, being judged to have a low risk of bias for all of their domains, and showed that real (compared with sham) acupuncture was associated with reduced pain intensity (mean difference [MD], -1.38 points; 95% CI, -2.13 to -0.64 points; I2 = 81%). A favorable association was also seen when acupuncture and acupressure were combined with analgesic therapy in 6 RCTs for reducing pain intensity (MD, -1.44 points; 95% CI, -1.98 to -0.89; I2 = 92%) and in 2 RCTs for reducing opioid dose (MD, -30.00 mg morphine equivalent daily dose; 95% CI, -37.5 mg to -22.5 mg). The evidence grade was moderate because of the substantial heterogeneity among studies. Conclusions and Relevance: This systematic review and meta-analysis found that acupuncture and/or acupressure was significantly associated with reduced cancer pain and decreased use of analgesics, although the evidence level was moderate. This finding suggests that more rigorous trials are needed to identify the association of acupuncture and acupressure with specific types of cancer pain and to integrate such evidence into clinical care to reduce opioid use.


Assuntos
Acupressão , Terapia por Acupuntura , Dor do Câncer/terapia , Acupressão/efeitos adversos , Terapia por Acupuntura/efeitos adversos , Humanos , Ensaios Clínicos Controlados Aleatórios como Assunto
10.
Int J Clin Pract ; : e13433, 2019 Oct 14.
Artigo em Inglês | MEDLINE | ID: mdl-31610072

RESUMO

BACKGROUND: Traditional medicines (TMs) adjunctive to conventional medications are widely used for asthma in east-Asia and have gained popularity in western countries. OBJECTIVE: To assess the efficacy and safety of TMs for asthma in children and adults based on placebo-controlled trials in order to inform physicians and assist them in discussions with patients. METHODS: Seventeen electronic databases were searched. Participants had acute or chronic asthma. Interventions included orally administered traditional medicines used in east-Asia. Outcomes included lung function, symptoms, quality of life, exacerbations, medication use and safety. RevMan 5.3 (random effect model) was used for meta-analysis. Baseline values were assessed for balance and asthma severity. Within-group changes were calculated to assess minimal clinically important difference (MCID). RESULTS: Eighteen studies (2080 participants) were included. All combined TMs with conventional medicines. The single study of acute asthma (n = 300) showed an improvement. For chronic asthma, severity at baseline ranged from very mild to severe. When asthma was mild, significant differences in lung function (FEV1%, PEF/R) were not detectable. When participants had moderate and/or severe asthma at baseline improvements were more evident. For measures of lung function, improvements within the TM groups tended to be greater when the asthma was more severe. Some studies showed MCIDs. No serious adverse events or interactions were reported but safety data were incomplete. CONCLUSIONS: The application of certain traditional herbal medicines used in east-Asia as adjuncts to conventional medications improved outcomes in acute and chronic asthma, but most evidence was based on single trials. Therefore, no single TM could be recommended. Effect sizes varied according to asthma severity at baseline. Future studies should consider baseline severity when enrolling participants.

11.
BMJ Open ; 9(7): e025564, 2019 07 09.
Artigo em Inglês | MEDLINE | ID: mdl-31289059

RESUMO

INTRODUCTION: Although acupuncture has been recommended for alleviating cancer pain by clinical guidelines, the level of the supporting evidence needs to be improved. A pragmatic randomised controlled trial (pRCT) in a hospital setting would provide real-world assessments of the overall clinical effects of acupuncture. This pilot trial aims to explore the feasibility and provide data for sample size calculations for a pRCT evaluating the effectiveness of acupuncture as an adjunctive therapy to routine medical care for cancer pain. METHODS AND ANALYSIS: Thirty patients with cancer admitted to the oncology department with moderate or severe pain will be recruited. Participants will be randomised at a ratio of 1:1 to the adjunctive acupuncture group or a control group which receives routine pain management without acupuncture. The standardised section of the acupuncture protocol will be developed based on the results of reviews of the literature, recommendations in clinical guidelines and interviews with clinical experts. The acupuncturist will be allowed to tailor the protocol according to the individual situation of each participant. Primary outcomes relevant to the feasibility of conducting a fully powered trial include: numbers and proportions of participants recruited, screened, consented and randomised; numbers and reasons for withdrawals and dropouts; numbers and types of adverse events; feasibility of implementing the trial procedures; evaluation of the comprehensiveness and ease-of-use of the case report form. Secondary outcomes are clinical measurements of the effectiveness of the treatment that are intended for use in the full-scale trial. Analysis of feasibility will be descriptive and pain intensity measures will be analysed using mixed-effects regression. ETHICS AND DISSEMINATION: Ethics approval was obtained from the Institutional Ethics Committee of Guangdong Provincial Hospital of Chinese Medicine (approval no: Z2017-184-01) and RMIT University Human Research Ethics Committee (reference no: 21361). Results will be disseminated in a peer-reviewed journal, and trial participants will be informed via email and/or phone calls. TRIAL REGISTRATION NUMBER: ChiCTR1800017023.


Assuntos
Terapia por Acupuntura , Dor do Câncer/terapia , Manejo da Dor/métodos , Adulto , Dor do Câncer/psicologia , Feminino , Humanos , Masculino , Medição da Dor , Projetos Piloto , Ensaios Clínicos Pragmáticos como Assunto , Qualidade de Vida , Ensaios Clínicos Controlados Aleatórios como Assunto , Resultado do Tratamento
12.
J Altern Complement Med ; 25(6): 578-592, 2019 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-30920303

RESUMO

Background: Mild cognitive impairment (MCI) prevalence is estimated at 6%-12% of the population. It is possible that early treatment at the MCI stage could reduce progression to more severe cognitive impairment. The Montreal Cognitive Assessment (MoCA) is a sensitive measure used to assess changes in cognitive function. Various Chinese herbal medicines (CHMs) have been tested for effects on MCI using MoCA. Objectives: To evaluate the clinical evidence for CHMs on MoCA scores in MCI. Design: Five biomedical databases in English and Chinese language were searched for randomized controlled trials that compared orally administered CHMs with a control group and assessed changes in cognition using MoCA. Analyses were based on the comparison, control intervention, and study duration. Mean differences and 95% confidence intervals were calculated to evaluate treatment effects. For each study, risk of bias was assessed according to the Cochrane tool. Results: Nineteen studies were included with 16 contributing to the data analyses. Three studies were placebo controlled. Nine compared a CHM with a pharmacotherapy, three combined a CHM with a pharmacotherapy, and one combined CHM with cognitive training. In the two placebo-controlled studies of 24-week duration, results favored the CHMs at end of treatment. Conclusions: The systematic review suggests that the oral application of certain CHMs improved scores on MoCA by 1.76-2.34 points compared with placebo in people with MCI after 24 weeks of treatment. However, these two studies used different CHM formulations. Two studies that tested the same CHM formulation, Bu Yang Huan Wu Tang, in combination with donepezil, reported improvement in the integrative groups, but the studies were not blind and the durations were only 8-12 weeks. Overall, methodological weaknesses limited the strength of the evidence. The herbal formulae included ingredients that have received considerable research attention for their effects on memory and cognition. PROSPERO international prospective register of systematic reviews protocol registration number: CRD42018099650.


Assuntos
Cognição/efeitos dos fármacos , Disfunção Cognitiva/tratamento farmacológico , Medicamentos de Ervas Chinesas/uso terapêutico , Fitoterapia , Medicamentos de Ervas Chinesas/farmacologia , Humanos , Testes de Estado Mental e Demência
13.
Integr Cancer Ther ; 18: 1534735418817833, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-30526124

RESUMO

OBJECTIVES: To assess the clinical evidence for integrative herbal medicine therapy in the management of chemotherapy-induced peripheral neuropathy (CIPN) and hand-foot syndrome (HFS) resulting from treatments for colorectal cancer (CRC). DESIGN: Randomized controlled trials (RCTs) were identified from major English and Chinese databases. Participants had been diagnosed with CRC by pathology and had received or were undergoing chemotherapy. Interventions included herbal medicines administered orally or topically. Controls were placebo, supportive care or conventional chemotherapy for CRC. Methods followed the Cochrane handbook. Meta-analyses were grouped by study design, outcome measure, severity, and chemotherapy. Random-effects models with 95% confidence intervals were used. Heterogeneity was assessed as I2. RESULTS: Sixty-three RCTs (4286 participants) were included. Five used a placebo in the control groups. Fifty-eight studies tested oral herbal medicine, and 5 tested topical herbal medicine. Data were available for CIPN (60 studies) and HFS (12 studies). Fifty-seven studies combined orally administered herbal medicine with chemotherapy compared with the same chemotherapy. For CIPN, 33 studies used World Health Organization (WHO) criteria, 7 used Levi's criteria, and 10 used the National Cancer Institute Common Terminology Criteria for Adverse Events (NCI-CTCAE). These were analyzed separately. For grades III + IV CIPN, there was a significant reduction in the integrative groups for WHO (relative risk [RR] 0.42 [0.23, 0.77], I2 = 0%) and Levi's (RR 0.28 [0.11, 0.69], I2 = 0%) but not NCI-CTCAE (RR 0.65 [0.37, 1.13], I2 = 26.4%). Hand and foot baths showed no differences for Levi's grades III + IV CIPN but a significant reduction in all grades (RR 0.69 [0.50, 0.95], I2 = 68.8%). For HFS (all grades) there was a significant reduction in the integrative groups for WHO (RR 0.62 [0.41, 0.96], I2 = 22%) but not for NCI-CTCAE (RR 0.93 [0.55, 1.55], I2 = 75.7%). Sensitivity analyses explored sources of heterogeneity. CONCLUSIONS: Integrative herbal therapy appeared to reduce CIPN and HFS in people receiving chemotherapy for CRC. However, the strength of the evidence was limited by lack of blinding in most studies, potential for bias, and relatively short study durations.


Assuntos
Antineoplásicos/efeitos adversos , Antineoplásicos/uso terapêutico , Neoplasias Colorretais/tratamento farmacológico , Medicamentos de Ervas Chinesas/uso terapêutico , Síndrome Mão-Pé/tratamento farmacológico , Doenças do Sistema Nervoso Periférico/tratamento farmacológico , Medicina Herbária/métodos , Humanos , Medicina Integrativa/métodos , Doenças do Sistema Nervoso Periférico/induzido quimicamente , Plantas Medicinais/química
14.
Phytomedicine ; 51: 214-225, 2018 Dec 01.
Artigo em Inglês | MEDLINE | ID: mdl-30466620

RESUMO

BACKGROUND: The World Health Organization (WHO) reported that colorectal cancer (CRC) was the third most common cancer in men and the second in women, worldwide. Our previous meta-analysis found Sophora flavescens increased tumour response rate in randomised controlled trials of CRC. We hypothesised that its principal constituent matrine had exerted anti-tumour effects. PURPOSE: To elucidate its mechanisms of action we investigated the dose-related anti-tumour effects of matrine on four human CRC cell-lines: LS174T, Caco-2, SW1116 and RKO. In a LS174T xenografted tumour model in nude mice we assessed the effects of matrine and oxaliplatin on tumour volume, weight and morphology. Computer simulated dockings for target proteins were also conducted. METHODS AND DESIGN: Cell viability, cell cycle and apoptosis were measured by Cell Counting Kit-8 and flow cytometry, and Annexin V-FITC/PI double staining assay respectively. Western blot was performed to examine the expression of Bax, Bcl-2 and caspase-3 in the cells. The xenograft model and immunohistochemistry were used to investigate the effect of matrine in vivo. Oxaliplatin was set as positive control. Molecular docking was performed to predict the binding modes of matrine and oxaliplatin with target proteins using CDOCKER algorithm. RESULTS: Matrine inhibited proliferation of cancer cells in a dose- and time-dependent manner. Matrine induced cell-cycle arrest at G1/G0 phase, induced apoptosis and reduced expression of Bcl-2 and caspase-3 while up-regulating Bax and cleaved caspase-3 in the four CRC cells. In vivo, matrine significantly inhibited tumour growth without side effects on physical health compared to the negative (vehicle) control group. Mice in the oxaliplatin group lost vigour, became frail and lost weight. Expression of Bcl-2 in tumour tissue was lower and Bax expression was higher in the matrine-treated groups compared to the negative control. In computer-simulated docking, matrine successfully docked into active sites of Bcl-2 and caspase-3. CONCLUSION: Matrine inhibited growth of colorectal cancer cells in vitro and in vivo. A molecular mechanism was apoptosis induction via effects on Bcl-2, Bax and caspase-3. Moreover, matrine showed minimum side effects and may provide a candidate for the development of new therapies for colorectal cancer.


Assuntos
Alcaloides/farmacologia , Apoptose/efeitos dos fármacos , Caspase 3/metabolismo , Proteínas Proto-Oncogênicas c-bcl-2/metabolismo , Quinolizinas/farmacologia , Animais , Células CACO-2 , Pontos de Checagem do Ciclo Celular , Linhagem Celular Tumoral , Proliferação de Células/efeitos dos fármacos , Neoplasias Colorretais , Humanos , Masculino , Camundongos , Camundongos Nus , Simulação de Acoplamento Molecular , Sophora/química , Ensaios Antitumorais Modelo de Xenoenxerto , Proteína X Associada a bcl-2/metabolismo , beta-Glucanas , Matrinas
15.
Artigo em Inglês | MEDLINE | ID: mdl-30151019

RESUMO

Delays in recovery of intestinal function following abdominal surgery are associated with longer hospital stays, increased postoperative complications, and higher costs to the health care system. Studies of acupuncture for postoperative ileus and other postoperative issues have reported improvements. This systematic review and meta-analysis aimed to assess whether acupuncture assisted recovery following surgery for colorectal cancer (CRC). Randomized controlled trials (RCTs) were identified from major English and Chinese language biomedical databases. Participants (aged 18 years plus) had received surgical resection for CRC. 22 studies (1,628 participants) were included. Five were sham-controlled. Outcomes included gastrointestinal function recovery (21 studies), recovery of urinary function (1 study), postoperative abdominal distension (3 studies), and quality of life (1 study). Meta-analyses found significant reductions in time to first bowel sounds, first flatus, and first defecation in both the sham-controlled and nonblinded studies. These results suggested that the addition of acupuncture following CRC surgery improved recovery of gastrointestinal function based on four blinded good quality RCTs (281 participants) and 17 nonblinded lower quality RCTs (1,265 participants). The best available evidence was for interventions that included electroacupuncture at the point ST36 Zusanli and there is supporting evidence for other types of acupuncture therapies that involve stimulation of this point. This review is registered with the following: systematic review registration in PROSPERO: CRD42017079590.

16.
J Altern Complement Med ; 24(2): 115-124, 2018 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-29068694

RESUMO

BACKGROUND: The majority of studies of integrative treatment for colorectal cancer (CRC) have been published in Chinese journals. These studies indicate potential benefits, but concerns have been raised over the quality of trials published in Chinese journals. The CONSORT statement provides a guide for study reporting that has been endorsed by more than 400 international journals. Previous studies have used the CONSORT checklist to assess the quality of randomized controlled trials (RCTs). OBJECTIVES: This study focused on RCTs of integrative and traditional medicine for CRC published in Chinese journals and assessed: (1) the overall quality of reporting with a focus on methodological aspects; (2) change over time; and (3) the influence of study funding, level of institution conducting the trial, rank of the journal, and the length of the article. DESIGN: Searches of seven databases identified RCTs. Quality was assessed using CONSORT 2010 with adaptations to facilitate scoring. Additional codes were added for publication year, hospital rank, report length, and status of the journal. Scores of each checklist item, total scores, and scores for eight items associated with RCT methodology were calculated. RESULTS: Eighty-one studies were included in the main analyses. The RCT methodology subgroup scores were significantly higher in studies: with public funding, conducted by authors from university hospitals, published in higher ranked journals, and in longer articles. CONCLUSIONS: Few Chinese journals mention CONSORT in their author guidelines. In these RCTs on CRC better reporting of RCT methodology was associated with ranking of the journal as "core," public funding of the RCT, and first or correspondent author from a university hospital but the quality of reporting had not significantly improved in 15 years. As the volume of scientific information produced in China grows, it is imperative that there is growth in the quality of this information.


Assuntos
Neoplasias Colorretais/terapia , Medicina Integrativa/normas , Publicações/normas , Ensaios Clínicos Controlados Aleatórios como Assunto/normas , Lista de Checagem , Humanos
17.
Int J Geriatr Psychiatry ; 33(3): 449-458, 2018 03.
Artigo em Inglês | MEDLINE | ID: mdl-29239495

RESUMO

OBJECTIVES: To evaluate the clinical evidence for traditional medicines (TMs) used in East Asia on measures of cognition in Alzheimer disease, determine the effect sizes at different time points for the TMs and pharmacotherapies, and assess the tolerability of the TMs. METHODS: We searched 12 databases in English, Chinese, and Japanese for eligible randomised controlled trials that compared orally administered TMs with pharmacotherapy and reported cognitive outcomes. Meta-analyses were conducted for Alzheimer's Disease Assessment Scale-cognitive subscale and/or Mini-Mental State Examination (MMSE). Mean differences and 95% confidence intervals were calculated to evaluate treatment effects. RESULTS: Thirty randomised controlled trials met inclusion criteria. Twenty-nine compared TMs with donepezil. Single studies provided comparisons with galantamine, rivastigmine, or memantine. There were no significant differences between the TM and donepezil groups at 12 or 24 weeks for Alzheimer's Disease Assessment Scale-cognitive subscale or MMSE. Improvements over baseline were significant for MMSE at 12 and 24 weeks within the TM and donepezil groups and remained significant at 1 year. Effect sizes were reduced in the 3 double-blind studies. At 24 weeks, donepezil 10 mg/d generally produced greater improvements in MMSE than 5 mg/d. Tolerability reporting was incomplete and inconsistent between studies. CONCLUSIONS: The results suggested that the clinical benefits of the TMs were not less than donepezil at comparable time points, with both groups showing improvements. However, lack of blinding in most studies and other design and measurement issues are likely to have resulted in overestimation of effect sizes in both groups. Further well-designed studies are needed.


Assuntos
Doença de Alzheimer/tratamento farmacológico , Inibidores da Colinesterase/uso terapêutico , Cognição/efeitos dos fármacos , Medicina Tradicional , Nootrópicos/uso terapêutico , Piperidinas/uso terapêutico , Extratos Vegetais/uso terapêutico , Doença de Alzheimer/psicologia , Donepezila , Ásia Oriental , Galantamina/uso terapêutico , Humanos , Indanos/uso terapêutico , Memantina/uso terapêutico , Rivastigmina/uso terapêutico
18.
BMJ Open ; 7(12): e018494, 2017 Dec 10.
Artigo em Inglês | MEDLINE | ID: mdl-29229658

RESUMO

INTRODUCTION: The National Comprehensive Cancer Network guidelines for adult cancer pain indicate that acupuncture and related therapies may be valuable additions to pharmacological interventions for pain management. Of the systematic reviews related to this topic, some concluded that acupuncture was promising for alleviating cancer pain, while others argued that the evidence was insufficient to support its effectiveness. METHODS AND ANALYSIS: This review will consist of three components: (1) synthesis of findings from existing systematic reviews; (2) updated meta-analyses of randomised clinical trials and (3) analyses of results of other types of clinical studies. We will search six English and four Chinese biomedical databases, dissertations and grey literature to identify systematic reviews and primary clinical studies. Two reviewers will screen results of the literature searches independently to identify included reviews and studies. Data from included articles will be abstracted for assessment, analysis and summary. Two assessors will appraise the quality of systematic reviews using Assessment of Multiple Systematic Reviews; assess the randomised controlled trials using the Cochrane Collaboration's risk of bias tool and other types of studies according to the Newcastle-Ottawa Scale. We will use 'summary of evidence' tables to present evidence from existing systematic reviews and meta-analyses. Using the primary clinical studies, we will conduct meta-analysis for each outcome, by grouping studies based on the type of acupuncture, the comparator and the specific type of pain. Sensitivity analyses are planned according to clinical factors, acupuncture method, methodological characteristics and presence of statistical heterogeneity as applicable. For the non-randomised studies, we will tabulate the characteristics, outcome measures and the reported results of each study. Consistencies and inconsistencies in evidence will be investigated and discussed. Finally, we will use the Grading of Recommendations Assessment, Development and Evaluation approach to evaluate the quality of the overall evidence. ETHICS AND DISSEMINATION: There are no ethical considerations associated with this review. The findings will be disseminated in peer-reviewed journals or conference presentations. PROSPERO REGISTRATION NUMBER: CRD42017064113.


Assuntos
Terapia por Acupuntura , Dor do Câncer/terapia , Humanos , Ensaios Clínicos Controlados Aleatórios como Assunto , Projetos de Pesquisa
19.
Am J Geriatr Psychiatry ; 25(9): 994-1008, 2017 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-28363357

RESUMO

Increasing placebo effect sizes over time have been reported in randomized controlled trials (RCTs) for outcomes related to psychiatric symptoms. The Neuropsychiatric Inventory (NPI) is a key outcome measure in clinical trials of the behavioral and psychological symptoms of dementia (BPSD). Accurate placebo effect size estimates for NPI are needed for sample size calculations in order to adequately power future studies. This study investigated variation in placebo effect sizes for NPI in RCTs testing oral interventions for BPSD. A search of PubMed was conducted in April 2016 for two-armed, double-blinded, placebo-controlled RCTs testing any oral intervention for management of BPSD using the NPI. Meta-analysis was conducted of baseline versus end of treatment placebo group data of included studies. Twenty-five RCTs published from 2000 to 2015 were included. Substantial variation in placebo effect sizes was detected. Participants in placebo groups showed greater improvements in recent studies compared with earlier studies. Subgroup analyses indicated robustness of this finding. From 2000 to 2008 there was no significant change in total NPI scores within placebo groups (12 studies; 1,056 participants), whereas from 2009 to 2015 there was significant improvement (mean difference: -2.68; 95% confidence interval: -4.38, -0.99; z = 3.10; p = 0.002, random effects; I2 = 76%; 13 studies; 1,170 participants). This increase in NPI effect sizes in placebo groups has important implications for power calculations for future clinical trials of BPSD. Effect size estimates for NPI need to be based on more recent studies.


Assuntos
Demência/tratamento farmacológico , Efeito Placebo , Comportamento Problema , Ensaios Clínicos Controlados Aleatórios como Assunto/estatística & dados numéricos , Tamanho da Amostra , Demência/fisiopatologia , Demência/psicologia , Humanos
20.
J Psychopharmacol ; 31(2): 169-183, 2017 02.
Artigo em Inglês | MEDLINE | ID: mdl-27899689

RESUMO

Management of the behavioural and psychological symptoms of dementia remains a challenge worldwide. Herbal medicines may play a role in the development of new interventions. To determine effects of herbal medicines for management of the behavioural and psychological symptoms of dementia, meta-analysis was conducted of 31 controlled trials (3613 participants). Frequently tested herbal medicines were the Ginkgo biloba leaf extract EGb 761 (seven studies) and the multi-ingredient formula Yokukansan (eight studies). Sixteen studies tested other herbal medicines. Improvements were detected in Neuropsychiatric Inventory scores in EGb 761 groups compared to placebo (MD -3.46 [-5.94, -0.98]; I2 = 93%; n = 1757) and Yokukansan groups compared to no treatment (SMD -0.53 [-0.86, -0.21]; I2 = 0%; n = 150). Cognitive scores were improved in EGb 761 groups while Yokukansan did not appear to affect cognitive function. Of the other herbal medicines, there were improvements in the behavioural and psychological symptoms of dementia and cognitive outcomes in two of four placebo-controlled studies. EGb 761 and Yokukansan appeared safe and well tolerated. Adverse effects and dropouts were not reported consistently for the other herbal medicines. Weaknesses of these included short durations, small sample sizes, lack of blinding and other risks of bias. Well-designed studies are needed to further investigate the reported effects of these interventions on the behavioural and psychological symptoms of dementia.


Assuntos
Comportamento/efeitos dos fármacos , Cognição/efeitos dos fármacos , Demência/tratamento farmacológico , Extratos Vegetais/uso terapêutico , Medicina Herbária/métodos , Humanos , Testes Neuropsicológicos , Fitoterapia/métodos
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