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1.
Int J Surg Pathol ; : 10668969241246475, 2024 Apr 22.
Artigo em Inglês | MEDLINE | ID: mdl-38646813

RESUMO

Phlebosclerotic colitis (PC) is a rare type of chronic ischemic colitis. Its etiology is still unknown, and PC is also known as idiopathic mesenteric phlebosclerosis colitis. Currently, many studies have reported that long-term use of Chinese herbal medicine and drinking history are related to its pathogenesis. In the early stage of the lesion, due to insufficient understanding of PC, it is difficult to distinguish it from inflammatory bowel disease and other nonneoplastic intestinal diseases. We reported a case of severe diffuse total colon calcification with multiple misdiagnosis, summarizing and analyzing the clinical pathological characteristics to increase clinical and pathological physicians' understanding of the disease and reduce misdiagnosis. Moreover, for the first time, we conducted metabolomics sequencing on fresh intestinal specimens of PC, in order to explore the possible mechanism of severe calcification in the patient. We found that betaine was significantly decreased in the intestinal specimens of the patient, which is an amino acid that has been shown to improve vascular risk factors, and may be one of the mechanisms underlying severe calcification in the patient.

2.
Environ Res ; 248: 118328, 2024 May 01.
Artigo em Inglês | MEDLINE | ID: mdl-38290613

RESUMO

To achieve highly efficient extraction of phosphorus (P) and comprehensive utilization of phosphate tailings, a two-stage leaching-precipitation method was proposed. Phosphate tailings primarily consisted of dolomite, fluorapatite, and quartz. During the first-stage leaching, the large majority of dolomite was selectively dissolved and the leaching efficiency of Mg reached 93.1 % at pH 2.0 and 60 °C. The subsequent second-stage leaching of fluorapatite was performed and the P leaching efficiency was 98.8 % at pH 1.5 and 20 °C, while the quartz remained in the residue. Through two-stage leaching, a stepwise leaching of dolomite and fluorapatite was achieved. After chemical precipitation, calcium phosphate with a high purity of 97.9 % was obtained; and the total recovery efficiency of P exceeded 98 %. The obtained calcium phosphate can be a raw material in the phosphorus chemical industry, while the Mg-rich leachate and the final quartz-rich residue have the potential for Mg extraction and the production of mortars or geopolymers, respectively. The two-stage leaching-precipitation process could significantly reduce the leaching costs, and enhance the reaction rates. It is expected to realize a volume reduction and efficient resource utilization of the phosphate tailings by using this sustainable and promising solution.


Assuntos
Carbonato de Cálcio , Magnésio , Fosfatos , Fósforo , Fosfatos/química , Quartzo , Apatitas
3.
Proc Natl Acad Sci U S A ; 121(2): e2219352120, 2024 Jan 09.
Artigo em Inglês | MEDLINE | ID: mdl-38165927

RESUMO

High levels of mitochondrial reactive oxygen species (mROS) are linked to cancer development, which is tightly controlled by the electron transport chain (ETC). However, the epigenetic mechanisms governing ETC gene transcription to drive mROS production and cancer cell growth remain to be fully characterized. Here, we report that protein demethylase PHF8 is overexpressed in many types of cancers, including colon and lung cancer, and is negatively correlated with ETC gene expression. While it is well known to demethylate histones to activate transcription, PHF8 demethylates transcription factor YY1, functioning as a co-repressor for a large set of nuclear-coded ETC genes to drive mROS production and cancer development. In addition to genetically ablating PHF8, pharmacologically targeting PHF8 with a specific chemical inhibitor, iPHF8, is potent in regulating YY1 methylation, ETC gene transcription, mROS production, and cell growth in colon and lung cancer cells. iPHF8 exhibits potency and safety in suppressing tumor growth in cell-line- and patient-derived xenografts in vivo. Our data uncover a key epigenetic mechanism underlying ETC gene transcriptional regulation, demonstrating that targeting the PHF8/YY1 axis has great potential to treat cancers.


Assuntos
Neoplasias Pulmonares , Fatores de Transcrição , Humanos , Fatores de Transcrição/metabolismo , Espécies Reativas de Oxigênio/metabolismo , Histona Desmetilases/metabolismo , Histonas/metabolismo , Transformação Celular Neoplásica , Neoplasias Pulmonares/genética , Fator de Transcrição YY1/genética , Fator de Transcrição YY1/metabolismo
4.
Sci Total Environ ; 912: 168749, 2024 Feb 20.
Artigo em Inglês | MEDLINE | ID: mdl-38007120

RESUMO

Rehabilitation of degraded soil health using high-performance and sustainable measures are urgently required for restoring soil primary productivity and mitigating greenhouse gas (GHG) emission of coastal ecosystems. However, the effect of livestock manure derived hydrochar on GHG emission and plant productivity in the coastal salt-affected soils, one of blue carbon (C) ecosystems, was poorly understood. Therefore, a cattle manure hydrochar (CHC) produced at 220 °C was prepared to explore its effects and mechanisms on CH4 and N2O emissions and tomato growth and fruit quality in a coastal soil in comparison with corresponding hydrochars derived from plant straws, i.e., sesbania straw hydrochars (SHC) and reed straw hydrochars (RHC) using a 63-day soil column experiment. The results showed that CHC posed a greater efficiency in reducing the global warming potential (GWP, 54.6 % (36.7 g/m2) vs. 45.5-45.6 % (22.2-30.6 g/m2)) than those of RHC and SHC. For the plant growth, three hydrochars at 3 % (w/w) significantly increased dry biomass of tomato shoot and fruit by 12.4-49.5 % and 48.6-165 %, respectively. Moreover, CHC showed the highest promotion effect on shoot and fruit dry biomass of tomato, followed by SHC ≈ RHC. Application of SHC, CHC and RHC significantly elevated the tomato sweetness compared with CK, with the order of CHC (54.4 %) > RHC (35.6 %) > SHC (22.1 %). Structural equation models revealed that CHC-depressed denitrification and methanogen mainly contributed to decreased GHG emissions. Increased soil phosphorus availability due to labile phosphorus supply from CHC dominantly accounted for elevated tomato growth and fruit production. Comparably, SHC-altered soil properties (e.g., decreased pH and increased total carbon content) determined variations of GHG emission and tomato growth. The findings provide the high-performance strategies to enhance soil primary productivity and mitigate GHG emissions in the blue C ecosystems.


Assuntos
Gases de Efeito Estufa , Solanum lycopersicum , Bovinos , Animais , Solo , Gases de Efeito Estufa/análise , Esterco , Ecossistema , Dióxido de Carbono/análise , Óxido Nitroso/análise , Metano/análise , Fertilizantes/análise , Carbono , Fósforo , Agricultura/métodos
5.
Naunyn Schmiedebergs Arch Pharmacol ; 397(2): 783-794, 2024 02.
Artigo em Inglês | MEDLINE | ID: mdl-37658213

RESUMO

Schisandrin stands as one of the primary active compounds within the widely used traditional medicinal plant Schisandra chinensis (Turcz.) Baill. This compound exhibits sedative, hypnotic, anti-aging, antioxidant, and immunomodulatory properties, showcasing its effectiveness across various liver diseases while maintaining a favorable safety profile. However, the bioavailability of schisandrin is largely affected by hepatic and intestinal first-pass metabolism, which limits the clinical efficacy of schisandrin. In this paper, we review the various pharmacological effects and related mechanisms of schisandrin, in order to provide reference for subsequent drug research and promote its medicinal value.


Assuntos
Medicamentos de Ervas Chinesas , Lignanas , Compostos Policíclicos , Medicamentos de Ervas Chinesas/farmacologia , Lignanas/farmacologia , Ciclo-Octanos/farmacologia , Compostos Policíclicos/farmacologia
6.
Int J Med Mushrooms ; 25(12): 1-13, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37947060

RESUMO

Motion sickness (MS) is a disorder of the autonomic nervous system caused by abnormal exercise with symptoms such as nausea, vomiting and drowsiness. More than 90% of the human population has experienced different degrees of MS. At present, anticholinergics, antihistamines, and sympathomimetic drugs are used for treating MS, but these drugs generally have some adverse reactions and are not suitable for all people. Therefore, it is necessary to develop anti-MS drugs that have high efficiency and no adverse effects. Previous studies have found that Chroogomphus rutilus polysaccharide (CRP) is effective at preventing and treating MS in rats and mice. However, its mechanism of action is not clear. To clarify whether the CRP has anti-MS effects in mice, and to clarify its mechanism, we performed behavioral, biochemical, and morphological tests in a Kunming mouse model. Our results indicate that CRPs can significantly relieve the symptoms of MS, and their effect is equivalent to that of scopolamine, a commonly used anti-MS medicine. Our results indicate that CRPs may directly act on the gastrointestinal chromaffin cells to inhibit the synthesis and release of serotonin (5-hydroxytryptamine, or 5-HT) and thus reduce the signal from the gastrointestinal tract.


Assuntos
Agaricales , Enjoo devido ao Movimento , Humanos , Camundongos , Ratos , Animais , Serotonina/uso terapêutico , Enjoo devido ao Movimento/tratamento farmacológico , Enjoo devido ao Movimento/prevenção & controle , Polissacarídeos/farmacologia
7.
J Environ Manage ; 347: 119159, 2023 Dec 01.
Artigo em Inglês | MEDLINE | ID: mdl-37793295

RESUMO

Phosphate tailing is an extremely fine by-product during phosphate ore flotation. Due to the large quantities and relatively higher P2O5 content, the phosphate tailings have been considered as a potential P resource, compared to other P-bearing wastes. Besides, phosphate tailings also contain a large amount of available components, such as Ca, Mg, and Si. To explore a low-cost and efficient process for the utilization of phosphate tailings, the hydrochloric acid leaching-precipitation method was employed to recover phosphorus. The P in phosphate tailings can be selectively dissolved into leaching liquor, followed by the precipitation of calcium phosphates from the leaching liquor through pH adjustment. The results showed that P was predominantly concentrated in fluorapatite and its dissolution ratio increased with the decrease in pH. At pH 1.0, the P dissolution efficiency from phosphate tailings reached 96.3%, along with the majority of Mg and Ca. However, Si was hardly dissolved. It demonstrated that almost all the fluorapatite and dolomite were dissolved while the quartz was difficult to dissolve. Dolomite was more preferentially dissolved than fluorapatite. Increasing temperature contributed to the dissolution of dolomite while suppressing fluorapatite dissolution. The residue containing 87.9% SiO2 (quartz) and only 0.25% P2O5 has the potential as a building material. As the pH increased to 7.0, the collected precipitate consisted of 34.18% P2O5 and 56.10% CaO, which can serve as a source of a slow-released phosphate fertilizer. The highly efficient utilization of phosphate tailings was achieved via this process.


Assuntos
Fosfatos , Fósforo , Fosfatos/química , Fósforo/química , Dióxido de Silício/química , Quartzo , Fosfatos de Cálcio
8.
Front Plant Sci ; 14: 1229041, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37746000

RESUMO

The rhizomes of Curcuma species have a long medicinal history in Asia. In China, Curcuma species mainly be utilized to make pharmaceutical products, including C. phaecocaulis, C. aromatica, C. wenyujin, C. kwangsiensis and C. longa. In this study, twenty-four samples were selected to study the genetic and chemical variability among five Curcuma species. The ITS2 and trnK intron gene fragment were used to identify the five Curcuma species, the differences in chemical composition were computed using the Euclidean distance based on the data of HPLC characteristic peak areas and the content of six key components, and agronomic characteristics were analyzed including morphological and volatile oil characteristics. The ITS2 and trnK intron gene fragment could distinguish the five Curcuma species clearly. The genetic distance between Curcuma species ranged from 0.0085 to 0.0767 based on the data of ITS2 gene sequences with 32 variation sites, and the genetic distance between Curcuma species ranged from 0.0003 to 0.0194 based on the data of trnK intron gene sequences with 39 variation sites. Five Curcuma species showed otherness chemical composition characteristics, with the Euclidean distance ranging from 3.373 to 6.998. The C. longa showed the biggest variation compared with other species, with the Euclidean distance above 6.239. Among the samples of the original plants of Ezhu, the volatile oil yield of W1 was the highest, reached to 105.75 mL per single plant. Among all the samples, J6 showed the highest yield of volatile oil, reached to 149.42 mL per single plant. The results showed that chemical composition similarity of the medicinal plants was the primary proof for the selection of the original plants of the Curcuma medicinal materials. The genetic distance and chemical variability were important references for discovering new medicinal plant resources.

9.
Altern Ther Health Med ; 29(7): 354-359, 2023 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-37499155

RESUMO

Objective: This study aimed to investigate the effectiveness of enhanced recovery after surgery (ERAS) during the perioperative period for patients with ureteral stones. Methods: A total of 105 patients with ureteral stones who underwent holmium laser lithotripsy at our hospital between January 2020 and January 2021 were included in the study. They were randomly divided into two groups using a random number table: the research group (n = 53) received ERAS, while the control group (n = 52) received conventional care. Postoperative recovery parameters were compared between the two groups, including time to mobilization, time to void, time to rehydration, time to remove the urinary catheter, and length of hospital stay. Visual analogue scoring (VAS) scores were assessed at 12, 24, 36, and 48 hours postoperatively. The General Quality of Life Questionnaire (GQOLI-74) scores and complication rates were compared. Results: The research group exhibited significantly shorter postoperative time to mobilization, time to void, time to rehydration, time to remove the urinary catheter, and length of hospital stay compared to the control group (P < .05). VAS scores at 12, 24, 36, and 48 hours postoperatively were significantly lower in the research group than in the control group (P < .05). Furthermore, post-intervention, all GQOLI-74 scores were significantly higher in the research group than in the control group (P < .05). The complication rate in the research group was 5.66% lower than in the control group (25.00% vs. 30.66%, respectively, P < .05). Conclusions: The application of ERAS during the perioperative period for patients with ureteral stones is associated with improved postoperative recovery, reduced postoperative pain, lower complication rates, and enhanced quality of life. These findings suggest that ERAS is a valuable approach to be promoted for clinical use.


Assuntos
Recuperação Pós-Cirúrgica Melhorada , Cálculos Ureterais , Humanos , Dor Pós-Operatória , Período Perioperatório , Qualidade de Vida , Estudos Retrospectivos , Resultado do Tratamento , Cálculos Ureterais/cirurgia
10.
Phys Chem Chem Phys ; 25(31): 21037-21044, 2023 Aug 09.
Artigo em Inglês | MEDLINE | ID: mdl-37522183

RESUMO

The discovery of superconductivity in layered MgB2 has renewed interest in the search for high-temperature conventional superconductors, leading to the synthesis of numerous hydrogen-dominated materials with high critical temperatures (Tc) under high pressures. However, achieving a high-Tc superconductor under ambient pressure remains a challenging goal. In this study, we propose a novel approach to realize a high-temperature superconductor under ambient pressure by introducing a hexagonal H monolayer into the hexagonal close-packed magnesium lattice, resulting in a new and stable few-hydrogen metal-bonded layered magnesium hydride (Mg4)2H1. This compound exhibits superior ductility compared to multi-hydrogen, cuprate, and iron-based superconductors due to its metallic bonding. Our unconventional strategy diverges from the conventional design principles used in hydrogen-dominated covalent high-temperature superconductors. Using anisotropic Migdal-Eliashberg equations, we demonstrate that the stable (Mg4)2H1 compound is a typical phonon-mediated superconductor, characterized by strong electron-phonon coupling and an excellent Tc of 37 K under ambient conditions, comparable to that of MgB2. Our findings not only present a new pathway for exploring high-temperature superconductors but also provide valuable insights for future experimental synthesis endeavors.

11.
J Pharm Anal ; 13(5): 431-441, 2023 May.
Artigo em Inglês | MEDLINE | ID: mdl-37305789

RESUMO

DNA barcoding has been widely used for herb identification in recent decades, enabling safety and innovation in the field of herbal medicine. In this article, we summarize recent progress in DNA barcoding for herbal medicine to provide ideas for the further development and application of this technology. Most importantly, the standard DNA barcode has been extended in two ways. First, while conventional DNA barcodes have been widely promoted for their versatility in the identification of fresh or well-preserved samples, super-barcodes based on plastid genomes have rapidly developed and have shown advantages in species identification at low taxonomic levels. Second, mini-barcodes are attractive because they perform better in cases of degraded DNA from herbal materials. In addition, some molecular techniques, such as high-throughput sequencing and isothermal amplification, are combined with DNA barcodes for species identification, which has expanded the applications of herb identification based on DNA barcoding and brought about the post-DNA-barcoding era. Furthermore, standard and high-species coverage DNA barcode reference libraries have been constructed to provide reference sequences for species identification, which increases the accuracy and credibility of species discrimination based on DNA barcodes. In summary, DNA barcoding should play a key role in the quality control of traditional herbal medicine and in the international herb trade.

12.
Zhongguo Zhong Yao Za Zhi ; 48(3): 770-777, 2023 Feb.
Artigo em Chinês | MEDLINE | ID: mdl-36872241

RESUMO

This paper aimed to study the effect of Erjing Pills on the improvement of neuroinflammation of rats with Alzheimer's di-sease(AD) induced by the combination of D-galactose and Aß_(25-35) and its mechanism. SD rats were randomly divided into a sham group, a model control group, a positive drug group(donepezil, 1 mg·kg~(-1)), an Erjing Pills high-dose group(9.0 g·kg~(-1)), and an Erjing Pills low-dose group(4.5 g·kg~(-1)), with 14 rats each group. To establish the rat model of AD, Erjing Pills were intragastrically administrated to rats for 5 weeks after 2 weeks of D-galactose injection. D-galactose was intraperitoneally injected into rats for 3 weeks, and then Aß_(25-35) was injected into the bilateral hippocampus. The new object recognition test was used to evaluate the learning and memory ability of rats after 4 weeks of intragastric administration. Tissues were acquired 24 h after the last administration. The immunofluorescence method was used to detect the activation of microglia in the brain tissue of rats. The positive expressions of Aß_(1-42) and phosphory protein Tau~(404)(p-Tau~(404)) in the CA1 area of the hippocampus were detected by immunohistochemistry. The levels of inflammatory factors interleukin-1ß(IL-1ß), tumor necrosis factor-α(TNF-α), and interleukin-6(IL-6) in the brain tissue were determined by enzyme-linked immunosorbent assay(ELISA). Toll-like receptor 4(TLR4)/nuclear factor kappa B(NF-κB)/nucleotide-binding oligomerization domain-like receptors 3(NLRP3) pathway-associated proteins in the brain tissue were determined by Western blot. The results showed that as compared with the sham group, the new object recognition index of rats in the model control group decreased significantly, the deposition of Aß_(1-42) and p-Tau~(404) positive protein in the hippocampus increased significantly, and the levels of microglia activation increased significantly in the dentate gyrus. The levels of IL-1ß, TNF-α, and IL-6 in the hippocampus of the model control group increased significantly, and the expression levels of TLR4, p-NF-κB p65/NF-κB p65, p-IκBα/IκBα, and NLRP3 proteins in the hippocampus increased significantly. Compared with the model control group, the Erjing Pill groups enhanced the new object recognition index of rats, decreased the deposition of Aß_(1-42) and the expression of p-Tau~(404) positive protein in the hippocampus, inhibited the activation of microglia in the dentate gyrus, reduced the levels of inflammatory factors IL-1ß, TNF-α, and IL-6 in the hippocampus, and down-regulated the expression levels of TLR4, p-NF-κB P65/NF-κB P65, p-IκBα/IκBα, and NLRP3 proteins in the hippocampus. In conclusion, Erjing Pills can improve the learning and memory ability of the rat model of AD presumably by improving the activation of microglia, reducing the expression levels of neuroinflammatory factors IL-1ß, TNF-α, and IL-6, inhibiting the TLR4/NF-κB/NLRP3 neuroinflammation pathway, and decreasing hippocampal deposition of Aß and expression of p-Tau, thereby restoring the hippocampal morphological structure.


Assuntos
NF-kappa B , Proteína 3 que Contém Domínio de Pirina da Família NLR , Animais , Ratos , Ratos Sprague-Dawley , Inibidor de NF-kappaB alfa , Galactose , Interleucina-6 , Doenças Neuroinflamatórias , Receptor 4 Toll-Like , Fator de Necrose Tumoral alfa
13.
J Hazard Mater ; 450: 131008, 2023 05 15.
Artigo em Inglês | MEDLINE | ID: mdl-36842201

RESUMO

Medicinal plants have a wide range of uses worldwide. However, the quality of medicinal plants is affected by severe cadmium pollution. Cadmium can reduce photosynthetic capacity, lead to plant growth retardation and oxidative stress, and affect secondary metabolism. Medicinal plants have complex mechanisms to cope with cadmium stress. On the one hand, an antioxidant system can effectively scavenge excess reactive oxygen species produced by cadmium stress. On the other hand, cadmium chelates are formed by chelating peptides and then sequestered through vacuolar compartmentalization. Cadmium has no specific transporter in plants and is generally transferred to plant tissues through competition for the transporters of divalent metal ions, such as zinc, iron, and manganese. In recent years, progress has been achieved in exploring the physiological mechanisms by which medicinal plants responding to cadmium stress. The exogenous regulation of cadmium accumulation in medicinal plants has been studied, and the aim is reducing the toxicity of cadmium. However, research into molecular mechanisms is still lagging. In this paper, we review the physiological and molecular mechanisms and regulatory networks of medicinal plants exposed to cadmium, providing a reference for the study on the responses of medicinal plants to cadmium stress.


Assuntos
Cádmio , Plantas Medicinais , Cádmio/metabolismo , Plantas Medicinais/metabolismo , Zinco , Estresse Oxidativo , Manganês , Estresse Fisiológico
14.
Zhonghua Yi Xue Yi Chuan Xue Za Zhi ; 40(1): 53-56, 2023 Jan 10.
Artigo em Chinês | MEDLINE | ID: mdl-36585001

RESUMO

OBJECTIVE: To explore the clinical characteristics and genetic etiology of a child with Schaaf-Yang syndrome (SYS). METHODS: Peripheral blood samples of the child and his parents were collected and subjected to whole exome sequencing. Sanger sequencing was used for family constellation verification, and bioinformatic analysis was performed for the candidate variant. RESULTS: The child, a 1-year-and-9-month-old boy, had clinical manifestations of retarded growth, small penis, and unusual facies. Genetic testing revealed that the child has harbored a novel heterozygous variant of c.3078dupG (p.Leu1027Valfs*28) of the MAGEL2 gene. Sanger sequencing showed that neither parent of the child carried the same variant. The c.3078dupG(p.Leu1027Valfs*28) variant of the MAGEL2 gene has not been included in the databases of ESP, 1000 Genomes and ExAC. According to the Standards and Guidelines for the Interpretation of Sequence Variants of the American College of Medical Genetics and Genomics (ACMG), the variant was judged to be pathogenic. CONCLUSION: The c.3078dupG (p.Leu1027Valfs*28) variant of the MAGEL2 gene probably underlay the SYS in this child, which has further expanded the spectrum of the MAGEL2 gene variants.


Assuntos
Deficiências do Desenvolvimento , Criança , Humanos , Lactente , Masculino , Sequenciamento do Exoma , Testes Genéticos , Heterozigoto , Mutação , Proteínas/genética , Deficiências do Desenvolvimento/genética
15.
J Colloid Interface Sci ; 634: 601-609, 2023 Mar 15.
Artigo em Inglês | MEDLINE | ID: mdl-36549208

RESUMO

In recent years, branched or star-shaped Au nanostructures composed of core and protruding arms have attracted much attention due to their unique optical properties and morphology. As the clinically adapted nanoagent, prussian blue (PB) has recently gained widespread attention in cancer theranostics with potential applications in magnetic resonance (MR) imaging. In this article, we propose a hybrid star gold nanostructure(Au-star@PB)as a novel theranostic agent for T1-weighted magnetic resonance imaging (MRI)/ photoacoustic imaging(PAI) and photothermal therapy (PTT) of tumors. Importantly, the Au-star@PB nanoparticles function as effective MRI/PA contrast agents in vivo by increasing T1-weighted MR/PAI signal intensity and as effective PTT agents in vivo by decreasing the tumor volume in MCF-7 tumor bearing BALB / c mouse model as well as in vitro by lessening tumor cells growth rate. Interestingly, we found the main photothermal effect of Au-star@PB is derived from Au-star, but not PB. In summary, the hybrid structure of Au-star@PB NPs with good biological safety, significant photostability, dual imaging capability, and high therapeutic efficiency, might offer a novel avenue for the future diagnosis and treatment of cancer.


Assuntos
Nanopartículas , Neoplasias , Camundongos , Animais , Fototerapia/métodos , Nanopartículas/química , Ferrocianetos/química , Imageamento por Ressonância Magnética/métodos , Neoplasias/diagnóstico por imagem , Neoplasias/terapia , Meios de Contraste/química , Camundongos Endogâmicos BALB C , Linhagem Celular Tumoral , Ouro/química
16.
Hortic Res ; 9: uhac223, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-36479585

RESUMO

Globally, medicinal plant natural products (PNPs) are a major source of substances used in traditional and modern medicine. As we human race face the tremendous public health challenge posed by emerging infectious diseases, antibiotic resistance and surging drug prices etc., harnessing the healing power of medicinal plants gifted from mother nature is more urgent than ever in helping us survive future challenge in a sustainable way. PNP research efforts in the pre-genomic era focus on discovering bioactive molecules with pharmaceutical activities, and identifying individual genes responsible for biosynthesis. Critically, systemic biological, multi- and inter-disciplinary approaches integrating and interrogating all accessible data from genomics, metabolomics, structural biology, and chemical informatics are necessary to accelerate the full characterization of biosynthetic and regulatory circuitry for producing PNPs in medicinal plants. In this review, we attempt to provide a brief update on the current research of PNPs in medicinal plants by focusing on how different state-of-the-art biotechnologies facilitate their discovery, the molecular basis of their biosynthesis, as well as synthetic biology. Finally, we humbly provide a foresight of the research trend for understanding the biology of medicinal plants in the coming decades.

17.
Transl Cancer Res ; 11(9): 3315-3321, 2022 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-36237246

RESUMO

Background: Mucosa-associated lymphoid tissue (MALT) lymphoma is an indolent B cell lymphoma. Its occurrence in the pleura is rare, with atypical clinical manifestations. MALT of the pleura is easily misdiagnosed. This is the first case report of pleural MALT lymphoma in China. Case Description: We report the case of a 54-year-old Chinese man with no notable medical history who complained of cough, sputum, and shortness of breath for 3 months. He had a positive purified protein derivative (PPD) test. An initial misdiagnosis of pleural tuberculosis was corrected, after 3 thoracoscopic biopsies and tests, to primary pleural MALT lymphoma. He received treatments of R-CHOP (rituximab, cyclophosphamide, epirubicin, vindesine and prednisolone) and traditional Chinese medicine. The patient was followed for 3 years until June 2022, with no obvious respiratory symptoms. Pleural MALT lymphoma is extremely rare, with only a few cases reported. This article describes our case, and includes an overview of 15 previously reported cases to summarize the characteristics, treatments, and prognosis of primary pleural MALT lymphoma. Conclusions: Pleural MALT lymphoma is rare, and a correct diagnosis depends on tissue biopsy, immunohistochemical staining, and detection of gene rearrangement. Thoracoscopy is important to diagnose this disease. Multiple thoracoscopic biopsies may be necessary.

18.
Sensors (Basel) ; 22(18)2022 Sep 11.
Artigo em Inglês | MEDLINE | ID: mdl-36146216

RESUMO

High-precision logging equipment is critical for measuring the borehole diameter and drilling offset in coal mining and petroleum drilling. We propose a module composition and positioning principle for an ultrasonic transducer based on an ultrasonic logging instrument for shaft sinking by drilling (ULISSD) for calculating the reflection distance. The logging distance, which is the primary performance index of a logging system, is determined by using the self-reception sensitivity and error of the ultrasonic transducer in a downhole system. To measure the error between the piezoelectric element of the transducer and the rubber seal of the borehole logging system, we developed an ultrasonic-transducer error-calibration device and a calibration method for a central-air-return-shaft-drilling project. This calibration device can eliminate the inherent error of the transducer and calculate the rate of propagation with high accuracy. The measurement error is reduced by approximately 1.5 mm; thus, the ULISSD measurement accuracy can be effectively improved in central-air-return-shaft drilling.


Assuntos
Petróleo , Ultrassom , Calibragem , Borracha , Transdutores
19.
Medicine (Baltimore) ; 101(5): e28735, 2022 Feb 04.
Artigo em Inglês | MEDLINE | ID: mdl-35119022

RESUMO

BACKGROUND: To compare and rank the clinical effects of different acupuncture and acupuncture-related therapies on patients with poststroke cognitive impairment. METHODS: We evaluated the direct and indirect evidence from relevant studies using network meta-analysis. Eight databases were examined in order to find randomized controlled trials of acupuncture-related therapies for individuals with poststroke cognitive impairment. After 2 researchers independently scanned the literature, extracted the data, and assessed the risk of bias in the included studies, the data were analyzed using RevMan5.4, Stata15.0, and WinBUGS1.4.3 software. RESULTS: We assess the benefits and drawbacks of various acupuncture-related therapies, rank the efficacy of various acupuncture-related therapies in the treatment of poststroke cognitive impairment, and describe the best acupuncture intervention approaches or combinations based on the available data. CONCLUSION: This study will contribute to the existence of data on the safety and efficacy of acupuncture-related therapies in the treatment of poststroke cognitive impairment, and it may aid clinical guideline makers in selecting the best acupuncture treatment for poststroke cognitive impairment. REGISTRATION NUMBER: INPLASY2021120117.


Assuntos
Terapia por Acupuntura , Disfunção Cognitiva , Disfunção Cognitiva/etiologia , Disfunção Cognitiva/terapia , Humanos , Metanálise como Assunto , Metanálise em Rede , Projetos de Pesquisa , Revisões Sistemáticas como Assunto
20.
Zhongguo Zhong Yao Za Zhi ; 47(1): 127-133, 2022 Jan.
Artigo em Chinês | MEDLINE | ID: mdl-35178919

RESUMO

In light of related methods in Chinese Pharmacopoeia(2020 edition), this study established the quality standard for Lobeliae Chinensis Herba. The TLC identification method was established with silica gel GF_(254) thin layer plate, diosmin standard, linarin standard, and the reference material of Lobeliae Chinensis Herba. The loss on drying, total ash, acid-insoluble ash, and ethanol-soluble extracts of 18 batches of Lobeliae Chinensis Herba samples were determined according to the general principles in Chinese Pharmacopoeia. Then, HPLC was adopted in the establishment of characteristic chromatogram and content determination. The results showed that the established method can achieve good separation for diosmin, linarin, and lobetyolin. Based on the results of detection for 18 batches of Lobeliae Chinensis Herba samples, the draft quality standard was established, which was expected to provide reference for the revision of this medicinal herb in Chinese Pharmacopoeia.


Assuntos
Medicamentos de Ervas Chinesas , Lobelia/química , Plantas Medicinais , Cromatografia Líquida de Alta Pressão , Medicamentos de Ervas Chinesas/normas , Plantas Medicinais/química
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