Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 66
Filtrar
Más filtros

Medicinas Complementárias
País/Región como asunto
Tipo del documento
Intervalo de año de publicación
1.
Water Sci Technol ; 88(12): 3129-3141, 2023 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-38154799

RESUMEN

To comprehensively assess the efficacy of employing the internal circulation (IC) anaerobic reactor for corn alcohol wastewater treatment and investigate its feasibility, this study focused on anaerobic digestion parameters, energy balance, and the composition of the prokaryotic microbial community. During the operation of the reactor, the hydraulic retention time was progressively reduced from 4.8 to 1.6 days while achieving an average organic loading rate of 12.46 kg chemical oxygen demand (COD)/(m3·d). Moreover, the removal rate of COD exceeded 98%, and the energy balance (ΔE) reached 10.29 kJ/g fed COD. The initial manifestation of organic acidosis in the reactor was a decline in gas production, which is primarily caused by propionic acid accumulation. The subsequent analysis revealed a high diversity of prokaryotes in granular sludge, with the predominant archaea primarily involved in methane production through the acetic acid pathway. The IC anaerobic reactor shows exceptional performance in treating corn alcohol wastewater by optimizing its operating conditions. Energy balance analysis confirmed the feasibility of the process. The findings of this study may offer valuable insights for optimizing control strategies and engineering applications.


Asunto(s)
Aguas Residuales , Zea mays , Zea mays/metabolismo , Eliminación de Residuos Líquidos , Anaerobiosis , Reactores Biológicos , Aguas del Alcantarillado/química , Etanol , Metano/metabolismo
2.
Medicine (Baltimore) ; 102(46): e34868, 2023 Nov 17.
Artículo en Inglés | MEDLINE | ID: mdl-37986280

RESUMEN

The aim of this study was to retrospectively analyze the clinical efficacy and safety of Qingfei Paidu granules (QFPG) combined with non-drug therapy of traditional Chinese medicine (TCM) in treating patients with asymptomatic coronavirus disease 2019 (COVID-2019). A total of 450 patients admitted to the wards of Chongming Changxing Island isolation site from April 1 to 18, 2022 were retrospectively analyzed and divided into 3 groups according to the treatment that they received. W1 was not treated (control group), and W2 was given QFPG (TCM treatment), W3 (TCM combined with TCM non-drug therapy) was treated with QFPG, five-element music therapy and Gong. We retrospectively analyzed the medical history data, including general information, time of first turning negative, length of hospital stays, number of cases classified as mild or ordinary, number of cases with adverse events/adverse reactions. The conversion to negative time of the 3 groups was 6.50, 4.40, and 3.81 days, respectively, and there were significant differences among the 3 groups (P < .001). The hospital duration in the 3 groups was 8.45, 5.72, and 5.53 days, respectively, and there were significant differences among the 3 groups (P < .001). The number of adverse events W1 (5/150, 3.3%), W2 (8/150, 5.3%), and W3 (4/150, 2.7%) was consistent among the 3 groups (P > .05). QFPG with TCM non-drug therapy is effective in patients with asymptomatic COVID-2019, which can effectively shorten the time to double negative and reduce the proportion of patients with mild disease.


Asunto(s)
COVID-19 , Medicamentos Herbarios Chinos , Humanos , Medicina Tradicional China , Estudios Retrospectivos , SARS-CoV-2 , Medicamentos Herbarios Chinos/uso terapéutico , Tratamiento Farmacológico de COVID-19 , Enfermedades Asintomáticas
3.
Biomater Adv ; 154: 213592, 2023 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-37717364

RESUMEN

Acute liver failure (ALF) is a life-threatening clinical syndrome mostly induced by viral infections or drug abuse. As a novel therapeutic adjuvant or delivery vehicle, plant-derived exosome-like nanovesicles (PELNVs) have been extensively studied in recent years. This study aimed to develop garlic-derived exosome-like nanovesicles (GaELNVs) in order to ameliorate liver injury induced by LPS/D-GalN in mice, inhibit inflammatory eruption and reduce inflammatory cells infiltration. The results showed that treatment with GaELNVs improved liver pathology and reduced the levels of soluble inflammatory mediators IL-6, IL-1ß and TNF-α in the serum of ALF mice. GaELNVs reversed the upregulation of Cleaved Caspase-9, Cleaved Caspase-3, p53 and Bax expression and decreased Bcl2 activation caused by D-GalN/LPS, and inhibited NF-κB p65 expression and translocation to the nucleus. Meanwhile, treatment with GaELNVs resulted significant reduction in NLRP3 activation and Caspase-1 maturation, as well as decrease in the release of the inflammatory mediator IL-18. Additionally, an upregulation of the expression of proteins related to energy metabolism and autophagy occurrence including Foxo3a, Sirt1, and LC3-II was detected in the liver. Oral administration of GaELNVs also led to significant alteration in the expression of F4/80 and CD11b in the liver. Furthermore, the detection of chemokines in mouse liver tissue revealed that GaELNVs exhibited minimal reduction in the expression of CCL2, CCL3, CCL5 and CCL8. The decreased expression of CCR2 and CCR5 in the liver suggests that GaELNVs have the ability to decrease the recruitment of monocytes from the circulation to the liver. A reduction in the infiltration of F4/80loCD11bhi monocyte-derived macrophages into the liver was also observed. This study provides novel evidence that GaELNVs can ameliorate inflammatory eruptions and hinder the migration of circulating monocytes to the liver, as well as decrease macrophage infiltration by inhibiting CCR2/CCR5 signaling. Consequently, GaELNVs hold promise as a novel therapeutic agent for clinical management of liver disease.


Asunto(s)
Exosomas , Ajo , Fallo Hepático Agudo , Animales , Ratones , Antioxidantes/farmacología , Inflamación/tratamiento farmacológico , Lipopolisacáridos/toxicidad , Fallo Hepático Agudo/inducido químicamente , Fallo Hepático Agudo/tratamiento farmacológico , Fallo Hepático Agudo/patología
4.
Infect Drug Resist ; 15: 6695-6701, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-36447790

RESUMEN

Background: "Pneumonia Prevention No.1" belongs to 'traditional Chinese medicine prescription for prevention of viral pneumonia and influenza' was urgently formulated by Notice on Printing the Novel Coronavirus Diagnosis and Treatment Scheme for COVID-19 (Trial Version 3) and Traditional Chinese Medicine Prevention and Treatment Scheme for COVID-19 in Hubei Province (Trial). Because the prescription drug has the bidirectional regulation function of human immune function, moderate improvement of immune function can effectively resist virus invasion, while excessive immune function will produce immune overresponse. Excessive immune response will aggravate the condition of patients with COVID-19, resulting in the death of severe patients. Methods: Twenty medical workers aged 20-60 years old, who had no immune disease, no current disease and healthy physical examination, were selected as participants. The participants took Hubei "Pneumonia Prevention No.1" decoction, one dosage each day, twice a day, for 7 consecutive days. With the before-after control method, blood samples were collected from the median cubital veins before and after medication. Immunoglobulin IgA, IgG and IgM were measured by immunoturbidimetry, and T lymphocyte subsets CD3, CD4, CD8 and CD4/CD8 were measured by flow cytometry. The changes of indexes before and after medication were compared with SPPS 13.0 statistical software. The data were expressed by (mean ± standard deviation). T-test was adopted, and P < 0.05 was considered statistically significant (P < 0.05). Results: The results of this study show that in healthy participants, the immunoglobulin and T lymphocyte subsets did not differ significantly before and after drug administration (P > 0.05). Conclusion: Under normal drug administration circumstances, "Pneumonia Prevention No. 1" had no significant regulating effect on the immune system in a healthy population and did not increase the immune system capacity beyond a reasonable range. It is safe to be used as a prophylactic measure in healthy populations.

5.
PeerJ ; 10: e13770, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-35910762

RESUMEN

Background: Panax notoginseng is an important herbal medicine in China, where this crop is cultivated by replanting of seedlings. Root rot disease threatens the sustainability of P. notoginseng cultivation. Water flooding (WF) is widely used to control numerous soilborne diseases, and biogas slurry shows positive effects on the soil physiochemical properties and microbial community structure and has the potential to suppress soilborne pathogens. Hence, biogas slurry flooding (BSF) may be an effective approach for alleviating root rot disease of P. notoginseng; however, the underlying mechanism needs to be elucidated. Methods: In this study, we conducted a microcosm experiment to determine if BSF can reduce the abundance of pathogens in soil and, alleviate root rot of P. notoginseng. Microcosms, containing soil collected from a patch of P. notoginseng showing symptoms of root rot disease, were subjected to WF or BSF at two concentrations for two durations (15 and 30 days), after which the changes in their physicochemical properties were investigated. Culturable microorganisms and the root rot ratio were also estimated. We next compared changes in the microbial community structure of soils under BSF with changes in WF and untreated soils through high-throughput sequencing of bacterial 16S rRNA (16S) and fungal internal transcribed spacer (ITS) genes amplicon. Results: WF treatment did not obviously change the soil microbiota. In contrast, BSF treatment significantly altered the physicochemical properties and reshaped the bacterial and fungal communities, reduced the relative abundance of potential fungal pathogens (Fusarium, Cylindrocarpon, Alternaria, and Phoma), and suppressed culturable fungi and Fusarium. The changes in the microbial community structure corresponded to decreased root rot ratios. The mechanisms of fungal pathogen suppression by BSF involved several factors, including inducing anaerobic/conductive conditions, altering the soil physicochemical properties, enriching the anaerobic and culturable bacteria, and increasing the phylogenetic relatedness of the bacterial community. Conclusions: BSF application can reshape the soil microbial community, reduce the abundance of potential pathogens, and alleviate root rot in P. notoginseng. Thus, it is a promising practice for controlling root rot disease in P. notoginseng.


Asunto(s)
Microbiota , Panax notoginseng , Suelo/química , Panax notoginseng/genética , Biocombustibles , Filogenia , ARN Ribosómico 16S/genética , Raíces de Plantas/microbiología , Microbiología del Suelo , Rizosfera , Enfermedades de las Plantas/prevención & control , Bacterias/genética , Alternaria/genética
6.
Sci Total Environ ; 839: 156273, 2022 Sep 15.
Artículo en Inglés | MEDLINE | ID: mdl-35643145

RESUMEN

The behavior of emissions is an important concern of in-situ burning (ISB) of spilled oils. In particular, the heavy soot originated from ISB can negatively impact the atmospheric environment. To track the behavior of ISB soot, the conservative biomarkers, such as hopanes and steranes, can be potentially used. In this study, the stability of chemical fingerprints of hopanes and steranes in the ISB soot were investigated based on the burning of two different types of oils, including one ultra-light condensate (i.e., surrogate Sanchi condensate) and one heavy oil. The results indicate that the chromatographic patterns and diagnostic ratios of hopanes and steranes in the ISB soot emissions almost remain identical to their corresponding source oils, proving the various oil source identification of ISB soot can be realized. This work attempts to provide novel insights into the application of biomarkers in the management of ISB emissions.


Asunto(s)
Contaminación por Petróleo , Petróleo , Biomarcadores/análisis , Aceites , Triterpenos Pentacíclicos/análisis , Petróleo/análisis , Contaminación por Petróleo/análisis , Hollín/análisis
7.
Sci Total Environ ; 824: 153896, 2022 Jun 10.
Artículo en Inglés | MEDLINE | ID: mdl-35182621

RESUMEN

The condensate spill accident from the Sanchi oil tanker collision in the East China Sea is unique in world history. To date, the spilled and burnt amounts of condensate remain unknown. The present study demonstrates the chemical fingerprints of a surrogate condensate (SC) from the same source, and of the carried heavy fuel oil (HFO) of the Sanchi accident. The evaporative features of the condensate are demonstrated by allowing the SC to naturally volatilize in a dark fume hood. In addition, the combustion emission of the SC is characterized by conducting a laboratory-scale combustion experiment. The evaporation experiment suggests that the volatilization process plays a significant role in the weathering of the condensate. The results show that the SC and HFO can be clearly distinguished based on their chemical fingerprints of C27-C35 hopanes and C9-C36 n-alkanes, along with priority polycyclic aromatic hydrocarbons (PAHs) and their alkylated derivatives. The compositional data reveal that the lighter component is predominant in the SC, thereby supporting its high volatility and flammability. The greater amounts of heavier components in the HFO indicate its long-term degradation and potential ecological risks to the environment. Further, the trisnorhopane thermal indicator (Ts/Tm) and C29/C30 ratio of hopanes are validated for identification of the SC and the HFO. More importantly, the changes in the hopane ratios of the soot particles are analyzed for the first time in this study, and the results demonstrate the validity of using hopane ratios to fingerprint the condensate soot particles. The diagnostic ratios of 2-MP/1-MP, 9/4-MP/1-MP, and InP/(InP+BghiP) also show decent performance on source identification after the condensate evaporation and combustion processes.


Asunto(s)
Contaminación por Petróleo , Petróleo , Hidrocarburos Policíclicos Aromáticos , Contaminantes Químicos del Agua , China , Aceites , Triterpenos Pentacíclicos , Petróleo/análisis , Contaminación por Petróleo/análisis , Hidrocarburos Policíclicos Aromáticos/análisis , Hollín , Contaminantes Químicos del Agua/análisis
8.
Sci Total Environ ; 805: 150292, 2022 Jan 20.
Artículo en Inglés | MEDLINE | ID: mdl-34536857

RESUMEN

Since the loss of honeybees in hives could have a greater impact on colony health than those of their foraging bees, it is imperative to know beehives' pesticide exposure via oral ingestion of contaminated in-hive matrices. Here, a 4-year monitoring survey of 64 pesticide residues in pollen, nectar and related beehive matrices (beebread and honey) from China's main honey producing areas was carried out using a modified version of the QuEChERS multi-residue method. The results showed that 93.6% of pollen, 81.5% of nectar, 96.6% of beebread, and 49.3% of honey containing at least one target pesticide were detected either at or above the method detection limits (MDLs), respectively, with up to 19 pesticides found per sample. Carbendazim was the most frequently detected pesticide (present in >85% of the samples), and pyrethroids were also abundant (median concentration = 134.3-279.0 µg/kg). The transfer of pesticides from the environment into the beehive was shown, but the pesticide transference ratio may be affected by complex factors. Although the overall risk to colony health from pesticides appears to be at an acceptable level, the hazard quotient/hazard index (HQ/HI) value revealed that pyrethroids were clearly the most influential contributor, accounting for up to 45% of HI. Collectively, these empirical findings provide further insights into the extent of contamination caused by agricultural pesticide use on honeybee colonies.


Asunto(s)
Miel , Residuos de Plaguicidas , Plaguicidas , Urticaria , Animales , Abejas , Miel/análisis , Residuos de Plaguicidas/análisis , Plaguicidas/análisis , Polen/química
9.
Zhongguo Zhong Yao Za Zhi ; 47(24): 6624-6632, 2022 Dec.
Artículo en Chino | MEDLINE | ID: mdl-36604911

RESUMEN

To explore the color value changes after processing and further explore the correlations between color values and internal components, we established a rapid evaluation method for the quality of Glycyrrhizae Radix et Rhizoma and Glycyrrhizae Radix et Rhizoma Praeparata Cum Melle. In this study, the color values of Glycyrrhizae Radix et Rhizoma and Glycyrrhizae Radix et Rhizoma Praeparata Cum Melle were digitized by a spectrophotometer, and the standard ranges of color values of the two herbal medicines were established. Further, a discriminant analysis model was established to quickly and accurately distinguish the two herbal medicines. The content of 9 flavonoids and 1 triterpene in Glycyrrhizae Radix et Rhizoma and Glycyrrhizae Radix et Rhizoma Praeparata Cum Melle were determined by HPLC, and Pearson correlation analysis was adopted to analyze the correlations between the color values and the content of 10 components. The standard ranges of L~*, a~*, and b~* values were 65.539 6-68.305 8, 7.296 3-8.467 3, and 29.998 8-32.212 8 for Glycyrrhizae Radix et Rhizoma, and 43.654 3-47.166 4, 14.050 0-15.133 8, and 16.424 6-20.984 8 for Glycyrrhizae Radix et Rhizoma Praeparata Cum Melle, respectively. Glycyrrhizae Radix et Rhizoma had higher L~* and b~* values and lower a~* value than Glycyrrhizae Radix et Rhizoma Praeparata Cum Melle, which indicated that processing with honey decreased the white and yellow values and increased the red value. The original and cross validation of the established discriminant analysis model met the requirements, and the external validation of the model showed the prediction accuracy of 100%. Pearson correlation analysis showed that the a~* value was positively correlated with the content of liquiritin apioside and isoliquiritin apioside(P<0.05), while the L~* and b~* values were negatively correlated with the content of the above two components(P<0.05). After processing with honey, L~* and b~* decreased while a~* increased, and the content of liquiritin apioside and isoliquiritin apioside increased, which was consistent with the content determination results. This study reveals the regularity of the color values of Glycyrrhizae Radix et Rhizoma after processing with honey roasting, as well as the correlations between color values and component content, which provides a basis for the rapid quality evaluation of Glycyrrhizae Radix et Rhizoma and Glycyrrhizae Radix et Rhizoma Praeparata Cum Melle.


Asunto(s)
Medicamentos Herbarios Chinos , Glycyrrhiza , Plantas Medicinales , Medicamentos Herbarios Chinos/análisis , Rizoma/química
10.
Zhongguo Zhong Yao Za Zhi ; 46(6): 1393-1400, 2021 Mar.
Artículo en Chino | MEDLINE | ID: mdl-33787137

RESUMEN

L~*, a~* and b~* values of prepared slices of Curcumae Rhizoma were measured by spectrophotometer. SPSS 21.0 was used for discriminant analysis to establish the color range and mathematical prediction model of prepared slices of Curcumae Rhizoma. The values of L~*, a~* and b~* of kwangsiensis ranged from 58.09-62.40, 4.53-5.66 and 23.61-24.29, while the values of L~*, a~* and b~* of phaeocaulis were between 64.02-70.71,-0.89-4.13 and 44.59-54.52, respectively. The values of L~*, a~* and b~* of wenyujin were 68.55-70.99,-0.11-1.47 and 28.26-32.19, respectively. The mathematical prediction model was proved to be able to realize 100% identification of Curcumae Rhizome of different origins through original and cross validation and external samples validation. A dual wavelength HPLC was established; the contents of 9 sesquiterpenoids and 3 Curcumae Rhizomes were determined simultaneously; and the contents of Curcumae Rhizome of different origins were determined. The results showed that kwangsiensis had higher contents of neocurdione, ß-elemene and isocurcumaenol, phaeocaulis curcumin, furadienone, demethoxycurcumin and curcumin; and wenyujin mainly contained curdione, furadienes and guimarone. Pearson correlation analysis on L~*, a~*, b~* value and content of 12 components showed that curcumin, furadienone, demethoxycurcumin and curcumin had a significant positive correlation with b~* value(P<0.01). There was a significant negative correlation between neocurdione, ß-elemene and isocurcumaenol and L~* value(P<0.01). Curdione, furadienes and guimarone were significantly correlated with L~* value(P<0.01),indicating that the appearance co-lor of Curcumae Rhizoma could reflect the change of the content of the internal components. This study provided reference for the rapid recognition of Curcumae Rhizoma and the establishment of quality evaluation system.


Asunto(s)
Curcumina , Rizoma , Cromatografía Líquida de Alta Presión , Color , Curcuma
11.
Zhongguo Zhong Yao Za Zhi ; 46(1): 162-170, 2021 Jan.
Artículo en Chino | MEDLINE | ID: mdl-33645066

RESUMEN

To study the time-toxicity relationship and mechanism of Gardeniae Fructus extract on the hepatoxicity in rats. Rats were randomly divided into C group(0 day), D5 group(5 days), D12 group(12 days), D19 group(19 days), and D26 group(7 days recovery after 19 days of administration). The rats in normal group received normal saline through intragastric administration, and the rats in other groups received 10 g·kg~(-1 )Gardeniae Fructus extract through intragastric administration. After the final administration, the livers were collected. Hematoxylin-eosin staining was used to observe the histopathological changes in the liver tissue. Total liver proteins were extracted for proteomic analysis, detected by the Nano-ESI liquid-mass spectrometry system and identified by Protein Disco-very software. SIEVE software was used for relative quantitative and qualitative analysis of proteins. The protein-protein interaction network was constructed based on STRING. Cytoscape software was used for cluster analysis of differential proteins. Kyoto encyclopedia of genes and genomes(KEGG) database was used to perform enrichment signal pathway analysis. Pearson correlation analysis was performed for the screened differential protein expression and liver pathology degree score. The results showed that the severity of liver injury in D5, D12 and D19 groups was significantly higher than that in group C. The degree of liver damage in D5 group was slightly higher than that in D12 and D19 groups, with no significant difference between group D26 and group C. Totally 147 key differential proteins have been screened out by proteomics and mainly formed 6 clusters, involving in drug metabolism pathways, retinol metabolism pathways, proteasomes, amino acid biosynthesis pathways, and glycolysis/gluconeogenesis pathways. The results of Pearson correlation analysis indicated that differential protein expressions had a certain temporal relationship with the change of liver pathological degree. The above results indicated that the severity of liver damage caused by Gardeniae Fructus extract did not increase with time and would recover after drug with drawal. The above pathways may be related to the mechanism of liver injury induced by Gardeniae Fructus extract.


Asunto(s)
Medicamentos Herbarios Chinos , Gardenia , Animales , Medicamentos Herbarios Chinos/toxicidad , Frutas , Hígado , Proteómica , Ratas , Transducción de Señal
12.
Artículo en Chino | WPRIM | ID: wpr-878925

RESUMEN

To study the time-toxicity relationship and mechanism of Gardeniae Fructus extract on the hepatoxicity in rats. Rats were randomly divided into C group(0 day), D5 group(5 days), D12 group(12 days), D19 group(19 days), and D26 group(7 days recovery after 19 days of administration). The rats in normal group received normal saline through intragastric administration, and the rats in other groups received 10 g·kg~(-1 )Gardeniae Fructus extract through intragastric administration. After the final administration, the livers were collected. Hematoxylin-eosin staining was used to observe the histopathological changes in the liver tissue. Total liver proteins were extracted for proteomic analysis, detected by the Nano-ESI liquid-mass spectrometry system and identified by Protein Disco-very software. SIEVE software was used for relative quantitative and qualitative analysis of proteins. The protein-protein interaction network was constructed based on STRING. Cytoscape software was used for cluster analysis of differential proteins. Kyoto encyclopedia of genes and genomes(KEGG) database was used to perform enrichment signal pathway analysis. Pearson correlation analysis was performed for the screened differential protein expression and liver pathology degree score. The results showed that the severity of liver injury in D5, D12 and D19 groups was significantly higher than that in group C. The degree of liver damage in D5 group was slightly higher than that in D12 and D19 groups, with no significant difference between group D26 and group C. Totally 147 key differential proteins have been screened out by proteomics and mainly formed 6 clusters, involving in drug metabolism pathways, retinol metabolism pathways, proteasomes, amino acid biosynthesis pathways, and glycolysis/gluconeogenesis pathways. The results of Pearson correlation analysis indicated that differential protein expressions had a certain temporal relationship with the change of liver pathological degree. The above results indicated that the severity of liver damage caused by Gardeniae Fructus extract did not increase with time and would recover after drug with drawal. The above pathways may be related to the mechanism of liver injury induced by Gardeniae Fructus extract.


Asunto(s)
Animales , Ratas , Medicamentos Herbarios Chinos/toxicidad , Frutas , Gardenia , Hígado , Proteómica , Transducción de Señal
13.
Clinical Endoscopy ; : 365-368, 2019.
Artículo en Inglés | WPRIM | ID: wpr-763451

RESUMEN

Air embolism is a rare complication of upper endoscopy and potentially causes life-threatening events. A 67-year-old man with a history of surgery of cardiac carcinoma and pancreatic neuroendocrine tumor underwent painless upper endoscopy because of tarry stools. During the procedure, air embolism developed, which caused decreased pulse oxygen saturation and delayed sedation recovery. He recovered with some weakness of the left upper limb in the intensive care unit without hyperbaric oxygen therapy. The etiology, clinical manifestations, and treatments of air embolism are discussed based on the literature reports. Although air embolism is uncommon in endoscopic examinations, the patients’ outcomes could be improved if clinicians are alert to this potential complication, and promptly start proper diagnostic and therapeutic measures.


Asunto(s)
Anciano , Humanos , Embolia Aérea , Endoscopía , Neoplasias Cardíacas , Oxigenoterapia Hiperbárica , Unidades de Cuidados Intensivos , Tumores Neuroendocrinos , Oxígeno , Extremidad Superior
14.
Artículo en Inglés | WPRIM | ID: wpr-776900

RESUMEN

Anemone flaccida Fr. Schmidt is a perennial medicinal herb that contains pentacyclic triterpenoid saponins as the major bioactive constituents. In China, the rhizomes are used as treatments for a variety of ailments including arthritis. However, yields of the saponins are low, and little is known about the plant's genetic background or phytohormonal responsiveness. Using one-quarter of the 454 pyrosequencing information from the Roche GS FLX Titanium platform, we performed a transcriptomic analysis to identify 157 genes putatively encoding 26 enzymes involved in the synthesis of the bioactive compounds. It was revealed that there are two biosynthetic pathways of triterpene saponins in A. flaccida. One pathway depends on β-amyrin synthase and is similar to that found in other plants. The second, subsidiary ("backburner") pathway is catalyzed by camelliol C synthase and yields β-amyrin as minor byproduct. Both pathways used cytochrome P450-dependent monooxygenases (CYPs) and family 1 uridine diphosphate glycosyltransferases (UGTs) to modify the triterpenoid backbone. The expression of CYPs and UGTs were quite different in roots treated with the phytohormones methyl jasmonate, salicylic acid and indole-3-acetic acid. This study provides the first large-scale transcriptional dataset for the biosynthetic pathways of triterpene saponins and their phytohormonal responsiveness in the genus Anemone.


Asunto(s)
Anemone , Genética , Metabolismo , Vías Biosintéticas , Genética , Sistema Enzimático del Citocromo P-450 , Genética , Metabolismo , Perfilación de la Expresión Génica , Regulación de la Expresión Génica de las Plantas , Glicosiltransferasas , Genética , Metabolismo , Ácido Oleanólico , Metabolismo , Reguladores del Crecimiento de las Plantas , Farmacología , Proteínas de Plantas , Genética , Metabolismo , Plantas Medicinales , Rizoma , Genética , Metabolismo , Saponinas , Metabolismo , Triterpenos , Metabolismo
15.
Zhongguo Zhong Yao Za Zhi ; 43(18): 3795-3800, 2018 Sep.
Artículo en Chino | MEDLINE | ID: mdl-30384548

RESUMEN

Chinese medicine processing is the main feature that distinguishes traditional Chinese medicine from natural medicine and plant medicine, and is the main feature in clinical medication of traditional Chinese medicine. The research of Chinese medicine processing technology is an important link to realize standardization and standardization of Chinese herbal pieces, with urgent need to attract high attention. At present, there are still many problems in the research of processing technology of Chinese herbal pieces, mainly including inconsistent processing technology, large differences in process technology parameters, and unstable production technology of Chinese herbal pieces, resulting in uncontrollable quality of Chinese herbal pieces and affecting the clinical efficacy of Chinese medicine. This paper focused on the establishment of a unified standard processing technology, and put forward the countermeasures for the processing technology of Chinese medicine based on a comprehensive analysis of the current situations of the processing technology of Chinese herbal pieces, with significance for guiding the establishment of a standardized processing technology of Chinese medicine.


Asunto(s)
Medicamentos Herbarios Chinos/química , Medicina Tradicional China , Tecnología Farmacéutica/métodos , Control de Calidad , Estándares de Referencia , Investigación
16.
Artículo en Inglés | MEDLINE | ID: mdl-30050590

RESUMEN

In traditional Chinese medicine (TCM), Acori Tatarinowii Rhizoma (ATR) is widely used to treat memory and cognition dysfunction. This study aimed to confirm evidence regarding the potential therapeutic effect of ATR on Alzheimer's disease (AD) using a system network level based in silico approach. Study results showed that the compounds in ATR are highly connected to AD-related signaling pathways, biological processes, and organs. These findings were confirmed by compound-target network, target-organ location network, gene ontology analysis, and KEGG pathway enrichment analysis. Most compounds in ATR have been reported to have antifibrillar amyloid plaques, anti-tau phosphorylation, and anti-inflammatory effects. Our results indicated that compounds in ATR interact with multiple targets in a synergetic way. Furthermore, the mRNA expressions of genes targeted by ATR are elevated significantly in heart, brain, and liver. Our results suggest that the anti-inflammatory and immune system enhancing effects of ATR might contribute to its major therapeutic effects on Alzheimer's disease.

17.
Ying Yong Sheng Tai Xue Bao ; 29(2): 380-388, 2018 Feb.
Artículo en Chino | MEDLINE | ID: mdl-29692050

RESUMEN

Understanding variation of carbon (C), nitrogen (N) and phosphorus (P) stoichiometry in common plant species across islands along a latitude gradient is insightful to reveal the adaptation strategies of plant species to environmental changes. Five common herbaceous species including Artemisia argyi, Setaira viridis, Humulus japonicus, Ophiopog onjaponicus, and Oxalis corniculata were sampled in 125 plots across nine islands in Eastern China. C, N and P contents in leaves, stems, and roots of five plant species were measured, and their relationships with soil C, N and P contents as well as mean annual air temperature (MAT) and mean annual precipitation (MAP) were investigated. The results showed that the range of C, N and P contents in aboveground parts of five species across nine islands was 352.16-518.16, 10.81-34.43, 0.58-2.38 mg·g-1, while the range of C:N, N:P and C:P was 11.98-38.99, 4.67-27.47, 133.39-748.54, respectively. In terms of roots, the range of C, N and P contents of five species was 312.28-493.34, 9.26-23.27, 0.40-2.10 mg·g-1, while the range of C:N, N:P and C:P was 18.18-46.79, 8.53-37.38, 174.45-1120.40, respectively. With the increases of latitude, contents of N and P in aboveground parts increased, but N:P decreased. Relative to N content, P content showed higher variation and was largely dependent on environment. Climate factors explained 60% of the variation of N and P contents and N:P across nine islands. In contrast, N and P contents and N:P of roots were independent of latitude, with climatic factors only explained 6%-10% of their variations. The contribution of climatic factors and soil nutrients contributed to the variations of N and P contents differed between above ground parts and roots of five species. Soil N and P had significant effects on P content in roots. Soil P content was positively correlated to aboveground P content. Soil properties explained 37% of the variation in N and P contents of plant roots. Our results suggested that latitude-associated environment shifts were the main drivers of variation in N and P contents and N:P in aboveground parts, and soil nutrients especially affected variation in P in roots of five common plant species, when the effects of plant phylogeny was controlled.


Asunto(s)
Carbono/análisis , Nitrógeno/análisis , Fósforo/análisis , Hojas de la Planta , China , Ecosistema , Islas , Suelo
18.
Biomed Res Int ; 2018: 1843142, 2018.
Artículo en Inglés | MEDLINE | ID: mdl-29546050

RESUMEN

Although ginseng has long been broadly used in clinical settings around the world, few clinical trials on ginseng have been conducted. The objective of this study was to provide a comprehensive evaluation of the characteristics of ginseng clinical trials registered in the WHO International Clinical Trials Registry Platform (ICTRP) as of December 2017 regarding their frequency, design, type of ginseng, dosage, duration, condition, funding sources, and publication status. A total of 134 ginseng clinical studies were registered from 2002 to 2017, of which 60.4% were completed and 23.1% are actively recruiting participants. A large number of trials were associated with aspects of high-quality trial design. Overall, 94% of the trials employed randomized allocation to study arms, 78.4% were double-blind studies using placebo as one of the control groups, and 71% were published as completed trials. Trials whose sample size was restricted to fewer than 100 participants accounted for 74.7% of the total. Of the primary funding sources for ginseng studies, 67.2% were nonindustry organizations. The ginseng clinical trials were heterogeneous with respect to ginseng species and variety, indications, dose, duration, and participant characteristics. Clearly, stricter and methodologically suitable studies are needed to demonstrate the efficacy and safety of ginseng.


Asunto(s)
Terapias Complementarias , Panax/química , Extractos Vegetales/uso terapéutico , Ensayos Clínicos como Asunto , Humanos , Panax/efectos adversos , Extractos Vegetales/efectos adversos , Extractos Vegetales/química , Sistema de Registros , Organización Mundial de la Salud
20.
Artículo en Inglés | MEDLINE | ID: mdl-29234428

RESUMEN

This study aimed to evaluate the clinical analgesic efficacy and identify the molecular targets of XGDP for treating primary dysmenorrhea (PD) by a network pharmacology approach. Analysis of pain disappearance rate of XGDP in PD treatment was conducted based on data from phase II and III randomized, double-blind, double-simulation, and positive parallel controlled clinical trials. The bioactive compounds were obtained by the absorption, distribution, metabolism, and excretion processes with oral bioavailability (OB) and drug-likeness (DL) evaluation. Subsequently, target prediction, pathway identification, and network construction were employed to clarify the mechanisms of the analgesic effect of XGDP on PD. The pain disappearance rates in phase II and III clinical trials of XGDP in PD treatment were 62.5% and 55.8%, respectively, yielding a significant difference (P < 0.05) when compared with the control group using Tongjingbao granules (TJBG). Among 331 compounds, 53 compounds in XGDP were identified as the active compounds related to PD through OB, DL, and target prediction. The active compounds and molecular targets of XGDP were identified, and our study showed that XGDP may exert its therapeutic effects on PD through the regulation of the targets related to anti-inflammation analgesia and central analgesia and relieving smooth muscle contraction.

SELECCIÓN DE REFERENCIAS
DETALLE DE LA BÚSQUEDA