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Medicinas Complementárias
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1.
Ageing Res Rev ; 90: 102014, 2023 09.
Artículo en Inglés | MEDLINE | ID: mdl-37442370

RESUMEN

Sarcopenia frequently occurs with aging and leads to major adverse impacts on activities of daily living and quality of life in elderly individuals. Omega-3 polyunsaturated fatty acid (omega-3 PUFAs) supplements are considered promising therapeutic agents for sarcopenia management; however, the evidence remains inconsistent. We reviewed randomized controlled trials (RCTs) about omega-3 PUFA supplementation in patients with sarcopenia or in those at high risk for sarcopenia. Network meta-analysis (NMA) procedures were conducted using a frequentist model. The primary outcomes were (1) upper-extremity muscle strength and (2) lower-extremity physical function. The NMA of 16 RCTs showed that the high-dose (more than 2.5 g/day omega-3 PUFAs) group yielded the greatest improvement in both upper-extremity muscle strength and lower-extremity physical function [compared to placebo/standard care groups, standardized mean difference (SMD)= 1.68, 95% confidence interval (95%CI)= 0.03-3.33, and SMD= 0.73, 95%CI= 0.16-1.30, respectively], and the effects were reaffirmed in subgroup analyses of placebo-controlled RCTs or those excluding concurrent resistance training programs. None of the investigated omega-3 PUFAs supplementation was associated with significantly increased skeletal muscle mass, fat mass, or overall body weight. Our findings provide a basis for future large-scale RCTs to investigate the dose effects and clinical application of omega-3 PUFA supplementation in sarcopenia management. TRIAL REGISTRATION: The current study was approved by the Institutional Review Board of the Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan (TSGHIRB No. B-109-29) and registered in PROSPERO (CRD42022347161).


Asunto(s)
Ácidos Grasos Omega-3 , Sarcopenia , Humanos , Anciano , Metaanálisis en Red , Sarcopenia/tratamiento farmacológico , Ensayos Clínicos Controlados Aleatorios como Asunto , Suplementos Dietéticos
2.
Fitoterapia ; 168: 105539, 2023 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-37178810

RESUMEN

Phytochemical study on the whole plants of a Gentianaceous medicinal plant, Canscora lucidissima, gave one new acylated iridoid glucoside, canscorin A (1), and two new xanthone glycosides (2 and 3) together with 17 known compounds including five xanthones, eight xanthone glycosides, two benzophenone glucosides, caffeic acid, and loganic acid. Canscorin A (1) was assigned as a loganic acid derivative having a hydroxyterephthalic acid moiety by spectroscopic analysis together with chemical evidence, while 2 and 3 were elucidated to be a rutinosylxanthone and a glucosylxanthone, respectively. The absolute configurations of the sugar moieties of 2 and 3 were determined by HPLC analysis. The isolated compounds were evaluated for their inhibitory activities against erastin-induced ferroptosis on human hepatoma Hep3B cells and LPS-stimulated IL-1ß production from murine microglial cells.


Asunto(s)
Ferroptosis , Gentianaceae , Xantonas , Ratones , Humanos , Animales , Glucósidos Iridoides , Estructura Molecular , Glicósidos/farmacología , Glicósidos/química , Xantonas/farmacología
3.
Brain Behav Immun ; 111: 352-364, 2023 07.
Artículo en Inglés | MEDLINE | ID: mdl-37150266

RESUMEN

Alzheimer's dementia (AD) is a major contributor to global disability, and effective therapies to modify disease progression are currently lacking. The neuro-inflammatory theory is a potential etiology underlying this neurodegenerative disease. Previous randomized, controlled trials (RCTs) have provided inconclusive results regarding efficacy of omega-3 polyunsaturated fatty acids (PUFAs) regimens, which might provide anti-inflammatory benefits in the management of AD, in improving cognitive function among participants with AD. The objective of this frequentist-model based network meta-analysis (NMA) was to evaluate the potential advantages of omega-3 PUFAs and currently FDA-approved medications for AD on overall cognitive function in AD individuals. The primary outcomes were: (1) changes in cognitive function, and (2) acceptability, which refers to all-cause discontinuation. Additionally, secondary outcomes included quality of life, behavioral disturbances and safety/tolerability, which was assessed through the frequency of any reported adverse event. This NMA included 52 RCTs (6 with omega-3 PUFAs and 46 with FDA-approved medications) involving 21,111 participants. The results showed that long-term high-dose (1500-2000 mg/day) of eicosapentaenoic acid (EPA)-dominant omega-3 PUFAs augmented with anti-oxidants had the highest potential for cognitive improvement among all investigated treatments [standardized mean difference = 3.00, 95% confidence intervals (95 %CIs) = 1.84-4.16]. Compared to placebo, omega-3 PUFAs had similar acceptability [odds ratio (OR) = 0.46, 95 %CIs = 0.04 to 5.87] and safety profiles (OR = 1.24, 95 %CIs = 0.66 to 2.33)o. These findings support the potential neurotherapeutic effects of high dosage EPA-dominant omega-3 PUFAs for the amelioration of cognitive decline in patients with AD. Future large-scale, long-term RCTs should focus on different dosages of EPA-dominant omega-3 PUFAs regimens on improving cognitive dysfunction in patients with AD at different levels of inflammatory status and psychopathology.


Asunto(s)
Enfermedad de Alzheimer , Ácidos Grasos Omega-3 , Humanos , Ácido Eicosapentaenoico/farmacología , Ácido Eicosapentaenoico/uso terapéutico , Enfermedad de Alzheimer/tratamiento farmacológico , Metaanálisis en Red , Ácidos Grasos Omega-3/uso terapéutico , Cognición , Antiinflamatorios/uso terapéutico , Ensayos Clínicos Controlados Aleatorios como Asunto
4.
J Sep Sci ; 46(3): e2200708, 2023 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-36494714

RESUMEN

Solvent system selection is a crucial and the most time-consuming step for successful countercurrent chromatography separation. A thin-layer chromatography-based generally useful estimate of solvent systems method has been developed to simplify the solvent system selection. We herein utilized the method to select a solvent system for off-line two-dimensional countercurrent chromatography to separate chemical compositions from a complex fraction of the Siraitia grosvenorii root extract. The first-dimensional countercurrent separation using chloroform/methanol/water (10:5.5:4.5, v/v/v) yielded four compounds with high purity and three mixture fractions (Fr I, III, and VII). The second-dimensional countercurrent separation conducted on Fr I, III, and VII using the hexane/ethyl acetate/methanol/water (4:6:6:4, 3:7:3:7, v/v/v) and chloroform/methanol/water (10:9:6, v/v/v) solvent systems, respectively, produced another four compounds. Four triterpenoids and four lignans were finally isolated, including two novel compounds. Hence, the generally useful estimate of solvent systems method is a feasible and efficient approach for selecting an applicable solvent system for separating complex samples. In addition, the off-line two-dimensional countercurrent chromatography method can improve both the peak resolution and the capacity of countercurrent chromatography.


Asunto(s)
Distribución en Contracorriente , Extractos Vegetales , Solventes/química , Distribución en Contracorriente/métodos , Extractos Vegetales/química , Metanol , Cloroformo/química , Agua/química , Cromatografía Líquida de Alta Presión/métodos
5.
Arch Psychiatr Nurs ; 40: 1-7, 2022 10.
Artículo en Inglés | MEDLINE | ID: mdl-36064231

RESUMEN

STUDY OBJECTIVES: Patients with schizophrenia often suffer from sleep disturbance. Music therapy, as a non-invasive intervention, may have benefit on sleep problem in such population. Our study aimed to investigate the efficacy of music therapy on sleep disturbance among patients with schizophrenia. METHOD: This prospective study recruited participants with schizophrenia along with sleep disturbances in the chronic wards. Patients in the control group received standard care, and those in the intervention group received additional music therapy before sleeping at night for four weeks. The Pittsburgh Sleep Quality Index (PSQI) was used to measure the severity of sleep disturbance. The generalized estimating equation (GEE) was used to analyze measure the difference of change in PSQI scores between both groups at the baseline and four weeks later. It was also applied to find the predictors of treatment efficacy within intervention group. FINDINGS: A total of 66 (31 in control group and 35 in intervention group) participants were recruited. After adjusting with the demographic variables, the change of PSQI among intervention group was significantly more than the change among control group (Group × time; Estimate = -7.05, p < 0.001), indicating the efficacy of music therapy. In addition, irreligious patients and those with chronic medical disease predicted better efficacy. Whereas, elderly patients had compromising efficacy of music therapy. CONCLUSION: Music therapy demonstrated its merit on sleep disturbance among patients with schizophrenia. Whereas, healthcare workers should consider the variability of severity in schizophrenia during clinical practice.


Asunto(s)
Musicoterapia , Esquizofrenia , Trastornos del Sueño-Vigilia , Anciano , Enfermedad Crónica , Humanos , Estudios Prospectivos , Esquizofrenia/complicaciones , Esquizofrenia/terapia , Sueño , Trastornos del Sueño-Vigilia/terapia
6.
Front Pain Res (Lausanne) ; 3: 937259, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-35959238

RESUMEN

Chronic pain, a common symptom of people with rheumatoid arthritis, usually behaves as persistent polyarthralgia pain and causes serious damage to patients' physical and mental health. Opioid analgesics can lead to a series of side effects like drug tolerance and addiction. Thus, seeking an alternative therapy and screening out the corresponding analgesic drugs is the key to solving the current dilemma. Traditional Chinese Medicine (TCM) therapy has been recognized internationally for its unique guiding theory and definite curative effect. In this study, we used the Apriori Algorithm to screen out potential analgesics from 311 cases that were treated with compounded medication prescription and collected from "Second Affiliated Hospital of Zhejiang Chinese Medical University" in Hangzhou, China. Data on 18 kinds of clinical symptoms and 16 kinds of Chinese herbs were extracted based on this data mining. We also found 17 association rules and screened out four potential analgesic drugs-"Jinyinhua," "Wugong," "Yiyiren," and "Qingfengteng," which were promised to help in the clinical treatment. Besides, combined with System Cluster Analysis, we provided several different herbal combinations for clinical references.

7.
Curr Neuropharmacol ; 20(10): 1816-1833, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-35450525

RESUMEN

BACKGROUND: While Alzheimer's dementia (AD) has a prevalence as high as 3-32% and is associated with cognitive dysfunction and the risk of institutionalization, no efficacious and acceptable treatments can modify the course of cognitive decline in AD. Potential benefits of exogenous melatonin for cognition have been divergent across trials. OBJECTIVE: The current network meta-analysis (NMA) was conducted under the frequentist model to evaluate the potential beneficial effects of exogenous melatonin supplementation on overall cognitive function in participants with AD in comparison to other FDA-approved medications (donepezil, galantamine, rivastigmine, memantine, and Namzaric). METHODS: The primary outcome was the changes in the cognitive function [measured by mini-mental state examination (MMSE)] after treatment in patients with Alzheimer's dementia. The secondary outcomes were changes in the quality of life, behavioral disturbance, and acceptability (i.e., drop-out due to any reason and rate of any adverse event reported). RESULTS: The current NMA of 50 randomized placebo-controlled trials (RCTs) revealed the medium-term lowdose melatonin to be associated with the highest post-treatment MMSE (mean difference = 1.48 in MMSE score, 95% confidence intervals [95% CIs] = 0.51 to 2.46) and quality of life (standardized mean difference = -0.64, 95% CIs = -1.13 to -0.15) among all of the investigated medications in the participants with AD. Finally, all of the investigated exogenous melatonin supplements were associated with similar acceptability as was the placebo. CONCLUSION: The current NMA provides evidence for the potential benefits of exogenous melatonin supplementation, especially medium-term low-dose melatonin, in participants with AD.


Asunto(s)
Enfermedad de Alzheimer , Melatonina , Enfermedad de Alzheimer/complicaciones , Enfermedad de Alzheimer/tratamiento farmacológico , Cognición , Humanos , Melatonina/farmacología , Melatonina/uso terapéutico , Metaanálisis en Red , Ensayos Clínicos Controlados Aleatorios como Asunto , Rivastigmina/farmacología , Rivastigmina/uso terapéutico
8.
Molecules ; 27(5)2022 Feb 24.
Artículo en Inglés | MEDLINE | ID: mdl-35268622

RESUMEN

The roots of Melastoma malabathricum subsp. normale (D. Don) Karst. Mey have been used in traditional ethnic medicine systems in China to treat inflammation-triggered ailments, such as trauma, toothache, and fever. Therefore, the aim of this study is to screen for compounds with anti-inflammatory activity in the title plant. The extract of M. malabathricum subsp. normale roots was separated using various chromatographic methods, such as silica gel, ODS C18, MCI gel, and Sephadex LH-20 column chromatography, as well as semi-preparative HPLC. One new complex tannin, named whiskey tannin D (1), and an undescribed tetracyclic depsidone derivative, named guanxidone B (2), along with nine known polyphenols (2-10) and three known depsidone derivatives (12-14) were obtained from this plant. The structures of all compounds were elucidated by extensive NMR and CD experiments in conjunction with HR-ESI-MS data. All these compounds were isolated from this plant for the first time. Moreover, compounds 1-4, 8, and 10-14 were obtained for the first time from the genus Melastoma, and compounds 1, 2, and 11-14 have not been reported from the family Melastomataceae. This is the first report of complex tannin and depsidone derivatives from M. malabathricum subsp. normale, indicating their chemotaxonomic significance to this plant. Compounds 1-12 were investigated for their anti-inflammatory activities on the production of the nitric oxide (NO) in lipopolysaccharide (LPS)-stimulated RAW264.7 cells, and compounds 1, 11, and 12 showed anti-inflammatory activities with IC50 values of 6.46 ± 0.23 µM, 8.02 ± 0.35 µM, and 9.82 ± 0.43 µM, respectively. The structure-activity relationship showed that the catechin at glucose C-1 in ellagitannin was the key to its anti-inflammatory activity, while CH3O- at C-16 of aromatic ring A in depsidone derivatives had little effect on its anti-inflammatory activity. The study of structure-activity relationships is helpful to quickly discover new anti-inflammatory drugs. The successful isolation and structure identification of these compounds, especially complex tannin 1, not only provide materials for the screening of anti-inflammatory compounds, but also provide a basis for the study of chemical taxonomy of the genus Melastoma.


Asunto(s)
Melastomataceae , Antiinflamatorios/química , Antiinflamatorios/farmacología , Depsidos , Lactonas , Melastomataceae/química , Extractos Vegetales/química , Extractos Vegetales/farmacología , Polifenoles/farmacología
9.
Nat Prod Res ; 36(19): 4906-4910, 2022 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-33896288

RESUMEN

Three new compounds (6S,9S)-6'-galloyl-roseoside (1), purpurogallin ethyl carboxylate (2), and tibetana A (3) were isolated from 80% methanol extract of the leaves of Castanopsis tibetana Hance. Their structures were elucidated based on comprehensive spectroscopic methods and chemical data, including optical rotation, UV, MS, 1 D and 2 D NMR spectra. Compounds 1 and 3 were evaluated for their α-glucosidase inhibitory activity, pancreatic lipase inhibitory activity, and tyrosinase inhibitory activity.


Asunto(s)
Fagaceae , alfa-Glucosidasas , Fagaceae/química , Inhibidores de Glicósido Hidrolasas/química , Inhibidores de Glicósido Hidrolasas/farmacología , Lipasa , Metanol , Monofenol Monooxigenasa , Extractos Vegetales/química , Hojas de la Planta/química
10.
J Ultrasound Med ; 41(5): 1227-1235, 2022 May.
Artículo en Inglés | MEDLINE | ID: mdl-34418137

RESUMEN

OBJECTIVES: Intussusception is one of the most common abdominal emergencies in early children. Intussusception recurs in 8-20% of children after successful nonoperative reduction. The aim of this study was to explore the ultrasound findings to predict risk of recurrence in pediatric intussusception after air enema reduction. METHODS: A total of 336 intussusception children were followed up for 1 year after received successful air enema reduction. They were divided into the recurrent group and the non-recurrent group. The differences of clinical characteristics, ultrasonic features, and laboratory tests were analyzed by univariate analyses and the Cox proportional hazard model. RESULTS: Sixty-five children with recurrent intussusception were identified. There were statistically significances in the diameter of the mass, in the presence or absence of enlarged lymph nodes out of the sleeve, and in the sleeve between recurrent and non-recurrent groups (P < .05). Other ultrasonic features, clinical characteristics, and blood parameters had no differences (P > .05). Multivariate Cox proportional hazard model showed that the diameter of the mass and abdominal lymph nodes may be the risk factors of intussusception recurrence (HR = 1.395, 95% CI: 1.045~1.863 and HR = 2.078, 95% CI: 1.118~3.865, P < .05). The cut-off value of mass diameter was 2.55 cm, above which recurrence is more likely. CONCLUSIONS: Intussusception recurrence was prone with greater mass diameter (>2.55 cm) and enlarged abdominal lymph nodes. Although these ultrasound findings for recurrence do not necessarily reduce the rate of recurrence, it can predict the recurrent possibility, and help the emergency physicians to be more vigilant in these children and better counsel parents upon discharge.


Asunto(s)
Intususcepción , Procedimientos de Cirugía Plástica , Niño , Enema , Humanos , Lactante , Intususcepción/diagnóstico por imagen , Intususcepción/terapia , Recurrencia , Estudios Retrospectivos , Factores de Riesgo , Resultado del Tratamiento
11.
J Asian Nat Prod Res ; 24(11): 1025-1032, 2022 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-34937451

RESUMEN

Two new glycosides of methyl everninate, rhodomollosides A (1) and B (2), were isolated from the aerial parts of a medicinal plant Rhododendron molle. The structures of 1 and 2 were elucidated on the basis of detailed spectroscopic analyses as well as HPLC analyses for thiazolidine derivatives of their sugar moieties. The sugar moiety of rhodomolloside A (1) was elucidated to be a rare monosaccharide, D-allose, while rhodomolloside B (2) was assigned as a D-glucoside of methyl everninate. Furthermore, they were evaluated for their cytotoxicity against RAW264.7 cells, and for their inhibitory effects with a lipopolysaccharide (LPS)-stimulated murine macrophages RAW 264.7 cells model.


Asunto(s)
Diterpenos , Rhododendron , Ratones , Animales , Rhododendron/química , Glicósidos/farmacología , Diterpenos/química , Estructura Molecular , Azúcares , Componentes Aéreos de las Plantas
12.
Pharmacol Res ; 174: 105955, 2021 12.
Artículo en Inglés | MEDLINE | ID: mdl-34715330

RESUMEN

Severe Coronavirus Disease 2019 (COVID-19) is characterized by numerous complications, complex disease, and high mortality, making its treatment a top priority in the treatment of COVID-19. Integrated traditional Chinese medicine (TCM) and western medicine played an important role in the prevention, treatment, and rehabilitation of COVID-19 during the epidemic. However, currently there are no evidence-based guidelines for the integrated treatment of severe COVID-19 with TCM and western medicine. Therefore, it is important to develop an evidence-based guideline on the treatment of severe COVID-19 with integrated TCM and western medicine, in order to provide clinical guidance and decision basis for healthcare professionals, public health personnel, and scientific researchers involved in the diagnosis, treatment, and care of COVID-19 patients. We developed and completed the guideline by referring to the standardization process of the "WHO handbook for guideline development", the Grading of Recommendations Assessment, Development and Evaluation (GRADE) system, and the Reporting Items for Practice Guidelines in Healthcare (RIGHT).


Asunto(s)
Antivirales/uso terapéutico , Tratamiento Farmacológico de COVID-19 , Medicamentos Herbarios Chinos/uso terapéutico , Infectología/tendencias , Medicina Tradicional China/tendencias , SARS-CoV-2/efectos de los fármacos , Antivirales/efectos adversos , COVID-19/diagnóstico , COVID-19/virología , Consenso , Técnica Delphi , Medicamentos Herbarios Chinos/efectos adversos , Medicina Basada en la Evidencia/tendencias , Interacciones Huésped-Patógeno , Humanos , Gravedad del Paciente , SARS-CoV-2/patogenicidad , Resultado del Tratamiento
13.
Molecules ; 26(13)2021 Jun 26.
Artículo en Inglés | MEDLINE | ID: mdl-34206838

RESUMEN

Polyphenols, widely distributed in the genus Melastoma plants, possess extensive cellular protective effects such as anti-inflammatory, anti-tyrosinase, and anti-obesity, which makes it a potential anti-inflammatory drug or enzyme inhibitor. Therefore, the aim of this study is to screen for the anti-inflammatory and enzyme inhibitory activities of compounds from title plant. Using silica gel, MCI, ODS C18, and Sephadex LH-20 column chromatography, as well as semipreparative HPLC, the extract of Melastoma normale roots was separated. Four new ellagitannins, Whiskey tannin C (1), 1-O-(4-methoxygalloyl)-6-O-galloyl-2,3-O-(S)-hexahydroxydiphenoyl-ß-d-glucose (2), 1-O-galloyl-6-O-(3-methoxygalloyl)-2,3-O-(S)-hexahydroxydiphenoyl-ß-d-glucose (3), and 1-O-galloyl-6-O-vanilloyl-2,3-O-(S)-hexahydroxydiphenoyl-ß-d-glucose (4), along with eight known polyphenols were firstly obtained from this plant. The structures of all isolates were elucidated by HRMS, NMR, and CD analyses. Using lipopolysaccharide (LPS)-stimulated RAW2 64.7 cells, we investigated the anti-inflammatory activities of compounds 1-4, unfortunately, none of them exhibit inhibit nitric oxide (NO) production, their IC50 values are all > 50 µM. Anti-tyrosinase activity assays was done by tyrosinase inhibition activity screening model. Compound 1 showed weak tyrosinase inhibitory activity with IC50 values of 426.02 ± 11.31 µM. Compounds 2-4 displayed moderate tyrosinase inhibitory activities with IC50 values in the range of 124.74 ± 3.12-241.41 ± 6.23 µM. The structure-activity relationships indicate that hydroxylation at C-3', C-4', and C-3 in the flavones were key to their anti-tyrosinase activities. The successful isolation and structure identification of ellagitannin provide materials for the screening of anti-inflammatory drugs and enzyme inhibitors, and also contribute to the development and utilization of M. normale.


Asunto(s)
Antiinflamatorios/análisis , Inhibidores Enzimáticos/farmacología , Taninos Hidrolizables/análisis , Melastomataceae/química , Monofenol Monooxigenasa/antagonistas & inhibidores , Extractos Vegetales/química , Polifenoles/farmacología , Animales , Antiinflamatorios/farmacología , Supervivencia Celular/efectos de los fármacos , Cromatografía Líquida de Alta Presión , Concentración 50 Inhibidora , Ratones , Estructura Molecular , Óxido Nítrico/metabolismo , Extractos Vegetales/análisis , Polifenoles/química , Células RAW 264.7
14.
Molecules ; 26(14)2021 Jul 07.
Artículo en Inglés | MEDLINE | ID: mdl-34299409

RESUMEN

Ellagitannins (ETs) are plant polyphenols with various health benefits. Recent studies have indicated that the biological activities of ETs are attributable to their degradation products, including ellagic acid and its gut microflora metabolites, such as urolithins. Insect tea produced in the Guangxi region, China, is made from the frass of moth larvae that feed on the ET-rich leaves of Platycarya strobilacea. Chromatographic separation of the Guangxi insect tea showed that the major phenolic constituents are ellagic acid, brevifolin carboxylic acid, gallic acid, brevifolin, and polymeric polyphenols. Chemical investigation of the feed of the larvae, the fresh leaves of P. strobilacea, showed that the major polyphenols are ETs including pedunculagin, casuarictin, strictinin, and a new ET named platycaryanin E. The new ET was confirmed as a dimer of strictinin having a tergalloyl group. The insect tea and the leaves of P. strobilacea contained polymeric polyphenols, both of which were shown to be composed of ETs and proanthocyanidins by acid hydrolysis and thiol degradation. This study clarified that Guangxi insect tea contains ET metabolites produced in the digestive tract of moth larvae, and the metabolites probably have higher bioavailabilities than the original large-molecular ETs of the leaves of P. strobilacea.


Asunto(s)
Tracto Gastrointestinal/metabolismo , Taninos Hidrolizables/metabolismo , Juglandaceae/química , Larva/metabolismo , Extractos Vegetales/metabolismo , Hojas de la Planta/química , Polifenoles/metabolismo , Animales , Digestión , Mariposas Nocturnas
15.
Front Neural Circuits ; 15: 675365, 2021.
Artículo en Inglés | MEDLINE | ID: mdl-33994957

RESUMEN

Objective: This study explored whether acupuncture affects the maintenance of long-term potentiation (LTP)-like plasticity induced by transcranial magnetic stimulation (TMS) and the acquisition of motor skills following repetitive sequential visual isometric pinch task (SVIPT) training. Methods: Thirty-six participants were recruited. The changes in the aftereffects induced by intermittent theta-burst stimulation (iTBS) and followed acupuncture were tested by the amplitude motor evoked potential (MEP) at pre-and-post-iTBS for 30 min and at acupuncture-in and -off for 30 min. Secondly, the effects of acupuncture on SVIPT movement in inducing error rate and learning skill index were tested. Results: Following one session of iTBS, the MEP amplitude was increased and maintained at a high level for 30 min. The facilitation of MEP was gradually decreased to the baseline level during acupuncture-in and did not return to a high level after needle extraction. The SVIPT-acupuncture group had a lower learning skill index than those in the SVIPT group, indicating that acupuncture intervention after SVIPT training may restrain the acquisition ability of one's learning skills. Conclusion: Acupuncture could reverse the LTP-like plasticity of the contralateral motor cortex induced by iTBS. Subsequent acupuncture may negatively affect the efficacy of the acquisition of learned skills in repetitive exercise training.


Asunto(s)
Terapia por Acupuntura , Corteza Motora , Potenciales Evocados Motores , Humanos , Plasticidad Neuronal , Ritmo Teta , Estimulación Magnética Transcraneal
16.
Biomed Pharmacother ; 136: 111260, 2021 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-33465676

RESUMEN

OBJECTIVE: Cryptotanshinone (CPT) and dihydrotanshinone (DHT) are diterpenoid anthraquinone compounds extracted from traditional Chinese herbal medicine (TCM). Recent studies have shown that CPT regulates the signal transduction pathways via microRNA (miRNA) alterations. However, few studies have investigated the role of DHT in miRNA alterations affecting cell-signaling pathways. This study aimed to investigate the miRNA alterations and post-transcriptional regulation activities of DHT in comparison to CPT. METHODS: HepG2 and HT-29 cells were treated with DHT or CPT for 72 h. MiRNA, transcription factor encoding mRNA, and downstream gene expression were determined using real-time quantitative PCR. Protein expression was analyzed using western blotting. RESULTS: The results revealed that CPT and DHT targeted cell proliferation and apoptosis signaling pathways via miR-15a-5p, miR-27a-5p, miR-100-5p, and miR-200a-5p alterations.In silico target predictions showed that downregulation of epidermal growth factor receptor (EGFR) mRNA expression by DHT might also suppress the expression of STAT family proteins and lead to anti-proliferation effects. We also found that, compared to CPT, DHT might possess higher potency in cell growth regulation via multi-miRNA and transcription factor alterations. CONCLUSION: This study revealed that CPT and DHT targeted cell proliferation and apoptosis signaling pathways via alterations in miRNAs and transcription factors. In addition, the findings of this study suggest that DHT is more potent than CPT in cancer chemopreventive activities. Therefore, DHT at a low dose is a TCM compound with less toxic side effects and may contribute to the development of natural medicine as a potential cancer chemopreventive agent.


Asunto(s)
Anticarcinógenos/farmacología , Antineoplásicos Fitogénicos/farmacología , Neoplasias del Colon/tratamiento farmacológico , Furanos/farmacología , Neoplasias Hepáticas/tratamiento farmacológico , MicroARNs/metabolismo , Fenantrenos/farmacología , Quinonas/farmacología , Transcriptoma/efectos de los fármacos , Apoptosis/efectos de los fármacos , Proteínas Reguladoras de la Apoptosis/genética , Proteínas Reguladoras de la Apoptosis/metabolismo , Proteínas de Ciclo Celular/genética , Proteínas de Ciclo Celular/metabolismo , Proliferación Celular/efectos de los fármacos , Neoplasias del Colon/genética , Neoplasias del Colon/metabolismo , Neoplasias del Colon/patología , Regulación Neoplásica de la Expresión Génica , Redes Reguladoras de Genes , Células HT29 , Células Hep G2 , Humanos , Neoplasias Hepáticas/genética , Neoplasias Hepáticas/metabolismo , Neoplasias Hepáticas/patología , MicroARNs/genética , Transducción de Señal , Factores de Transcripción/genética , Factores de Transcripción/metabolismo
17.
Nat Prod Res ; 35(5): 822-825, 2021 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-30961365

RESUMEN

As a medicinal plant, Artemisia annua is widely distributed in China. The purpose of this work was to analyze the chemical composition of essential oil from A. annua aerial portions, as well as to assess its repellent activity against Lasioderma serricorne and Tribolium castaneum adults. GC-FID and GC-MS analyses enabled the identification of 15 components representing 90.1% of the essential oil. The main components included artemisia ketone (70.6%), α-caryophyllene (5.1%) and germacrene D (3.8%). The essential oil was found to possess considerable ability to repel the two storage pests. This paper provided some evidence for the exploitation and utilization of A. annua resources as a natural repellent.


Asunto(s)
Artemisia annua/química , Escarabajos/efectos de los fármacos , Repelentes de Insectos/farmacología , Aceites Volátiles/química , Aceites Volátiles/aislamiento & purificación , Control Biológico de Vectores , Componentes Aéreos de las Plantas/química , Tribolium/efectos de los fármacos , Animales , China , Cromatografía de Gases y Espectrometría de Masas , Repelentes de Insectos/química , Insecticidas/química , Insecticidas/farmacología , Monoterpenos/farmacología
18.
Zhongguo Zhong Yao Za Zhi ; 45(7): 1691-1697, 2020 Apr.
Artículo en Chino | MEDLINE | ID: mdl-32489051

RESUMEN

To explore the etiology, pathogenesis, distribution of syndromes and the rule of medication of chronic atrophic gastritis(CAG) in Beijing-Tianjin-Hebei region based on the latent structure model. Chronic atrophic gastritis of 279 cases in Beijing-Tianjin-Hebei region were extracted from the established database of spleen and stomach diseases of famous veteran Chinese medicine experts. The latent structure models of symptoms and drugs of chronic atrophic gastritis were constructed by using Lantern 3.1.2 software, and the latent structure models were interpreted. SAS 10.0 software was used to mine association rules of drugs and symptoms. The constitutional characteristics of patients with chronic atrophic gastritis in Beijing-Tianjin-Hebei region were "turbid toxin and damaging Yin". The common syndromes were turbid toxin, deficiency of stomach Yin, stagnation of liver and stomach, stagnation of liver and stomach Qi, obstruction of stomach collaterals and blood stasis, and weakness of spleen and stomach. Common medicines are Lobeliae Chinensis Herba, Scutellariae Barbatae Herba, Amomi Fructus Rotundus, Amomi Fructus, Poria, Isatidis Radix, Artemisiae Scopariae Herba, Scorpio, Coptidis Rhizoma, Lilii Bulbus, Linderae Radix, Phragmitis Rhizoma, Ophiopogonis Radix, Pogostemonis Herba, Eupatorii Herba, Magnoliae Officinalis Cortex, Aurantii Fructus Immaturus. Common prescriptions are Baihe Wuyao Powder, Danggui Shaoyao Powder, Xiaoyao Pills, Xiangsu Powder, Dachengqi Decoction, Zuojin Pills, Qingzhong Decoction, Zhishi Daozhi Pills, etc. The application of latent structure model and correlation analysis in the empirical study of famous and veteran Chinese medicine experts is in line with the research direction of modern Chinese medicine "traditional Chinese medicine + X". The conclusions obtained effectively tap the experience of famous and veteran TCM experts, and provide a data and visual clinical reference and prescription compatibility for young TCM physicians in the treatment of chronic atrophic gastritis based on syndrome differentiation.


Asunto(s)
Medicamentos Herbarios Chinos , Gastritis Atrófica , Beijing , Humanos , Medicina Tradicional China , Rizoma
19.
J Pineal Res ; 69(2): e12663, 2020 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-32347977

RESUMEN

Although exogenous melatonin supplementation has been suggested to be effective for episodic migraine prophylaxis, there is no conclusive evidence comparing the efficacy of exogenous melatonin supplementation to the other FDA-approved pharmacotherapy for episodic migraine prophylaxis. The aim of the current network meta-analysis (NMA) was to compare the efficacy of exogenous melatonin supplementation in patients with episodic migraine. The randomized placebo-controlled trials or randomized controlled trials (RCTs) incorporating a placebo in the study designs were included in our analyses. All of the NMA procedures were conducted under the frequentist model. The primary outcome was changes in frequency of migraine days and response rate after migraine prophylaxis with melatonin supplementation or pharmacological interventions. We included 25 RCTs in total with 4499 patients (mean age = 36.0 years, mean female proportion = 78.9%). The NMA demonstrated that migraine prophylaxis with oral melatonin 3 mg/d (immediate-release) at bedtime was associated with the greatest improvement in migraine frequency [mean difference = -1.71 days, 95% confidence interval (CI): -3.27 to -0.14 days compared to placebo] and the second highest response rate (odds ratio = 4.19, 95% CI = 1.46 to 12.00 compared to placebo). Furthermore, oral melatonin 3 mg (immediate-release) at bedtime was the most preferred pharmacological intervention among all of the investigated interventions when improvements in migraine frequency, response rate, dropout rate, and rates of any adverse events were taken into account. This pilot NMA suggests the potential prophylactic role of exogenous melatonin supplementation in patients with episodic migraine.


Asunto(s)
Suplementos Dietéticos , Melatonina/uso terapéutico , Trastornos Migrañosos/prevención & control , Femenino , Humanos , Masculino , Trastornos Migrañosos/metabolismo , Metaanálisis en Red , Proyectos Piloto , Ensayos Clínicos Controlados Aleatorios como Asunto
20.
Physiol Mol Biol Plants ; 26(2): 379-389, 2020 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-32158142

RESUMEN

In order to ascertain the regulatory mechanism of fruit development in Isatis indigotica Fortune, the complementary DNA (cDNA) sequence of the SHATTERPROOF 2 (SHP2) orthologous gene was identified by Rapid Amplification of cDNA Ends technology and the corresponding gene was named IiSHP2. The expression pattern of IiSHP2 was determined by quantitative reverse transcription-polymerase chain reaction and wild-type Col-0 Arabidopsis plants were transformed with the IiSHP2 gene using Agrobacterium tumefaciens and the floral-dip method. Expression analyses indicated that IiSHP2 was highly expressed in flowers, silicles and seeds. Compared to wild-type plants, IiSHP2 transgenic lines bolted earlier. Detailed phenotypic observations showed that the size of the rosette and cauline leaves in transgenic lines was reduced and the cauline leaves of the transgenic lines were incurved and displayed a funnel-like shape. During the reproductive growth stage, IiSHP2 transgenic plants produced shortened sepals and the flower buds were not encapsulated completely. Moreover, the petals of the transgenic lines were converted into stamineous tissues, accompanied by exposed stamens, short malformed siliques and wrinkled valves, indicating a severe decline in fertility. These experimental conclusions are valuable as a reference for the breeding of medicinal plants.

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