Kjerwhitehead4997
Network pharmacology analysis showed that the mechanism of action of Radix astragali and Rhizoma atractylodis macrocephalae on CRF mainly involved compounds, such as quercetin, kaempferol and luteolin, acting through multiple targets, such as Protein kinase B α (AKT1), Tumour necrosis factor (TNF), and Interleukin-6 (IL-6). These molecules regulate cytokines, cancer signalling, and metabolic pathways and confer an anti-CRF effect.
TCM may be a promising therapy to relieve CRF in cancer patients. Our research may provide a reference for the clinical application of TCM for treating CRF.
TCM may be a promising therapy to relieve CRF in cancer patients. Our research may provide a reference for the clinical application of TCM for treating CRF.
Anchusa italica Retz. (Boraginaceae) is an important medicinal plant for the treatment of meningitis and pneumonia in traditional Uygur medicines.
To clarify the anti-inflammatory activity of A. italica, to reveal its molecular mechanisms, and to discover the anti-inflammatory active ingredients.
Dried and crushed aerial parts of A. italica were extracted with 75% ethanol to yield crude extract (AICE) and AICE was fractionated to obtain petroleum ether extract (AIPE), dichloromethane extract (AIDE), ethyl acetate extract (AIEE), n-butanol extract (AIBE) and residues (AIW). By measuring the effects of AIPE, AIDE, AIEE, AIBE and AIW on cell viability and nitric oxide (NO) in Lipopolysaccharide (LPS) stimulated RAW264.7cell lines, AIDE with the lowest cytotoxicity and NO contents was finally selected for further chemical and anti-inflammatory investigations. LC-MS/MS experiment was applied to analyze the chemical composition of AIDE. MTT and Griess methods were used to detect the cell viability and to quanMAPK), nuclear transcription factors κB (NF-κB) and pyrolytic relevant proteins, down-regulating inflammatory factor levels, and activating the Nrf2/HO-1 pathway. Triterpenoids might be its major active anti-inflammatory ingredients.
Mathematical optimization of automated external defibrillator (AED) placement has demonstrated potential to improve survival of out-of-hospital cardiac arrest (OHCA). Existing models mostly aim to improve accessibility based on coverage radius and do not account for detailed impact of delayed defibrillation on survival. We aimed to predict OHCA survival based on time to defibrillation and developed an AED placement model to directly maximize the expected survival rate.
We stratified OHCAs occurring in Singapore (2010-2017) based on time to defibrillation and developed a regression model to predict the Utstein survival rate. We then developed a novel AED placement model, the maximum expected survival rate (MESR) model. We compared the performance of MESR with a maximum coverage model developed for Canada that was shown to be generalizable to other settings (Denmark). The survival gain of MESR was assessed through 10-fold cross-validation for placement of 20 to 1000 new AEDs in Singapore. Statistical analysis was performed using χ
and McNemar's tests.
During the study period, 15,345 OHCAs occurred. The power-law approximation with R
of 91.33% performed best among investigated models. It predicted a survival of 54.9% with defibrillation within the first two minutes after collapse that was reduced by more than 60% without defibrillation within the first 4 minutes. MESR outperformed the maximum coverage model with P-value<0.05 (<0.0001 in 22 of 30 experiments).
We developed a novel AED placement model based on the impact of time to defibrillation on OHCA outcomes. Mathematical optimization can improve OHCA survival.
We developed a novel AED placement model based on the impact of time to defibrillation on OHCA outcomes. Mathematical optimization can improve OHCA survival.Acetaminophen (APAP) overdose is a major cause of acute liver failure, while the underlying mechanisms of APAP hepatotoxicity are not fully understood. Bcl 2 inhibitor Recently, emerging evidence suggests that epigenetic enzymes play roles in APAP-induced liver injury. Here, we found that Utx (ubiquitously transcribed tetratricopeptide repeat, X chromosome, also known as KDM6A), a X-linked histone demethylase which removes the di- and tri-methyl groups from histone H3K27, was markedly induced in the liver of APAP-overdosed female mice. Hepatic deletion of Utx suppressed APAP overdose-induced hepatotoxicity in female but not male mice. RNA-sequencing analysis suggested that Utx deficiency in female mice upregulated antitoxic phase II conjugating enzymes, including sulfotransferase family 2 A member 1 (Sult2a1), thus reduces the amount of toxic APAP metabolites in injured liver; while Utx deficiency also alleviated ER stress through downregulating transcription of ER stress genes including Atf4, Atf3, and Chop. Mechanistically, Utx promoted transcription of ER stress related genes in a demethylase activity-dependent manner, while repressed Sult2a1 expression through mediating H3K27ac levels independent of its demethylase activity. Moreover, overexpression of Sult2a1 in the liver of female mice rescued APAP-overdose induced liver injury. Together, our results indicated a novel UTX-Sult2a1 axis for the prevention or treatment of APAP-induced liver injury.Saccharomyces boulardii (S. boulardii) is a probiotic yeast that has been elucidated to be efficacious in fighting various gastrointestinal diseases in preclinical as well as clinical studies. Its general mechanisms of probiotic action in the treatment of gastrointestinal conditions cover multifaceted aspects, including immune regulation, production of antimicrobial substances, pathogen competitive elimination, gut barrier integrity maintenance, intestinal trophic effect and antioxidant potency. In this review, basic knowledge with regard to the gut-liver axis, available probiotics remedies and mechanistic insights of S. boulardii as probiotics will be elucidated. In addition, we summarize the therapeutic potential of S. boulardii in several liver diseases evident from both bench and bedside information, such as acute liver injury/failure, fibrosis, hepatic damages due to metabolic disturbance or infection and obstructive jaundice. Future prospects in relation to medicinal effects of S. boulardii are also exploited and discussed on the basis of novel and attractive therapeutic concept in the latest scientific literature.Caesalpinia sappan and Haematoxylum brasiletto belong to the Fabaceae family, predominantly distributed in Southeast Asia and America. The isoflavonoid brazilin has been identified from the bark and heartwood of these plants. This review summarizes the studies describing the biological activities of these plants and brazilin. Mainly, brazilin protects cells from oxidative stress, shows anti-inflammatory and antibacterial properties, and hypoglycemic effect. In addition, it has a biological impact on various pathologies such as Alzheimer's disease, Parkinson's disease, fibrillogenesis, and osteoarthritis. Interestingly, most of the antecedents are related to the anticancer effect of brazilin. In several cancers such as osteosarcoma, neuroblastoma, multiple myeloma, glioblastoma, bladder, melanoma, breast, tongue, colon, cervical, head, and neck squamous cell carcinoma, brazilin induces autophagy by increasing the levels of the LC3-II protein. Furthermore, it inhibits cell proliferation and induces apoptosis through increased expression of Bcl-2, Bcl-XL, p21, p27, activation of caspase-3 and -7, and the cleavage of PARP and inhibiting the expression of Bax. In addition, it blocks the expression of JNK and regulates the nuclear translocation of Nrf2. Together, these data positions brazilin as a compound of natural origin with multiple bioactivities and therapeutic potential in various chronic degenerative diseases and cancer.Originating from Eastern Asia, the plant Cannabis sativa has been used for centuries as a medicinal treatment. The unwanted psychotropic effects of one of its major components, Δ9-tetrahydrocannabinol, discouraged its therapeutic employment until, recently, the discovery of cannabinoids receptors and their endogenous ligands endocannabinoids reignited the interest. The endocannabinoid system has lately been found to play an important role in the maintenance of human health, both centrally and peripherally. However, the initial idea of the endocannabinoid system structure has been quickly understood to be too simplistic and, as new receptors, mediators, and enzymes have been discovered to participate in a complex relationship, the new, more comprehensive term "expanded endocannabinoid system" or "endocannabinoidome", has taken over. The discovery of other endocannabinoid-like receptors, such as the G protein-coupled receptor 119 and G protein-coupled receptor 55, has opened the way to the development of potential therapeutic targets for the treatment of various metabolic disorders. In addition, recent findings have also provided evidence suggesting the potential therapeutic link between the endocannabinoidome and various inflammatory-based gut diseases, such as inflammatory bowel disease and cancer. This review will provide an introduction to the endocannabinoidome, focusing on its modulatory role in the gastrointestinal tract and on the interest generated by the link between gut microbiota, the endocannabinoid system and metabolic diseases such as inflammatory bowel disease, type-2 diabetes and obesity. In addition, we will look at the potential novel aspects and benefits of drugs targeting the endocannabinoid system.New strategies are urgently needed for developing vaccines and/or anti-viral drugs against influenza viruses, because antigenic shift and drift inevitably occurs in circulating strains each year, and new strains resistant to anti-viral drugs have recently emerged. In our study, we designed and incorporated artificial microRNAs (amiRNAs) into the NA segment of rescued influenza viruses to separately target two host genes, Cdc2-like kinase 1 (CLK1) and SON DNA binding protein (SON), which were found to play an essential role in virus replication. Mouse epithelial fibroblast (MEF) or human lung carcinoma A549 cells infected with engineered influenza PR8 viruses expressing amiR-30CLK1 (PR8-amiR-30CLK1) or amiR-93SON (PR8-amiR-93SON) had reduced expression of host proteins CLK1 and SON, respectively. All engineered influenza viruses functioned as attenuated vaccines, induced significantly higher antibody responses, and provided greater protective efficacy. In addition, they were found to be safe, based on the mouse weight changes and clinical signs observed. In contrast to the engineered viruses targeting SON, mice treated with engineered viruses targeting CLK1 recovered from weight loss and survived lethal infection by 6 h after lethal-dose PR8 infection, suggesting that our PR8-amiR-30CLK1 self-attenuated influenza virus (SAIV) could be used as a new therapeutic influenza vaccine.Topically applied antiviral creams and patches are the commercially available options for the treatment of herpes labialis. The nanofibrous patches could be a new direction in the formulation. The project aimed to formulate core-shell type nanofibrous scaffolds loaded with dexpanthenol (shell) and acyclovir (core). To achieve the fast dissolution of the antiviral agent, hydroxypropyl-beta-cyclodextrin was used as a complexation agent. The further aim was to study the prepared electrospun scaffolds' morphological- and physicochemical properties and antiviral activity. The fibrous samples were prepared by electrospinning using polyvinylpyrrolidone (PVP) as a shell, hypromellose (HPMC), and poly(ethylene oxide)(PEO) composite or poly(vinyl alcohol) (PVA) as a core polymer. The morphology of the prepared sample was studied by scanning electron microscopy (SEM), transmission electron microscopy (TEM), and Raman spectroscopy. The SEM photos showed that fibrous structures were obtained. In the case of the PVA/PVP composition, the desired structure was obtained.