Therapeutic Potential of Carbon Dots Derived from Phytochemicals as Nanozymes Exhibiting Superoxide Dismutase Activity for Anemia.

Anemia is a potentially life-threatening blood disorder caused by an insufficient erythroblast volume in the circulatory system. Self-renewal failure of erythroblast progenitors is one of the key pathological factors leading to erythroblast deficiency. However, there are currently no effective drugs that selectively target this process.

Analysis of intestinal bacterial carboxylesterase-mediated metabolites and the potential antitumour molecular mechanism of angoroside C.

Angoroside C (AgrC) is a compound with many pharmacological properties. However, its antitumour potential has not been well studied. The low bioavailability of AgrC suggests a strong link to gut bacteria.

Mutation in CDC42 Gene Set as a Response Biomarker for Immune Checkpoint Inhibitor Therapy.

Background: Immune checkpoint inhibitors (ICIs) have achieved great success; however, a subset of patients exhibits no response. Consequently, there is a critical need for reliable predictive biomarkers. Our focus is on CDC42, which stimulates multiple signaling pathways promoting tumor growth.

A Review on Branched-Chain Amino Acid Aminotransferase (BCAT) Inhibitors: Current Status, Challenges and Perspectives.

Branched-chain amino acids (BCAAs) are essential amino acids for humans and play an indispensable role in many physiological and pathological processes. Branched-chain amino acid aminotransferase (BCAT) is a key enzyme that catalyzes the metabolism of BCAAs. BCAT is upregulated in many cancers and implicated in the development and progress of some other diseases, such as metabolic and neurological diseases; and therefore, targeting BCAT might be a potential therapeutic approach for these diseases.

Zebrafish as a Visible Neuroinflammation Model for Evaluating the Anti-Inflammation Effect of Curcumin-Loaded Ferritin Nanoparticles.

It is crucial to inhibit the neuroinflammation response as it is a prominent factor contributing to the pathogenesis of neurodegenerative disorders. However, the limited development of neuroinflammation models dramatically hinders the efficiency of nanomedicine discovery. In recent years, the optically transparent zebrafish model provided unique advantages for imaging of the whole body, allowing the progression of the disease to be visualized.

Phosphine-Catalyzed Cascade Cycloaddition of Vinyl Oxiranes with Sulfonium Compounds to Step-Economically Construct Spiro-2(3)-furanone Scaffolds.

In this work, we developed a phosphine-catalyzed cascade lactonization/[2 + 1] annulation reaction between vinyl oxiranes and sulfonium compounds for the highly diastereoselective construction of spiro-2(3)-furanone skeletons. The cascade cycloaddition proceeds via the 2(5)-furanone phosphonium intermediate, introducing an oxygen-containing active intermediate for phosphine catalysis. These findings highlight the significant potential of harnessing vinyl oxiranes as versatile synthons for constructing spirocyclic compounds through simultaneous multicyclic skeleton formation.

Chinese herbal formula Regan Saibisitan alleviates airway inflammation of chronic bronchitis via inhibiting the JAK2/STAT3 pathway.

Ethnopharmacological Relevance: Regan Saibisitan (RGS) is a classic prescription used to treat cough, pneumonia, and other respiratory infections in Uygur medicine. It is a granule composed of 12 kinds of medicinal materials. However, the mechanism by which RGS regulates lung disease remains unclear.

Structural Similarity in Natural Products Leading to Sample Misidentification: A Case Study of the Bisbenzylisoquinoline Alkaloids Oxyacanthine and Berbamine.

The similar structures of natural compounds and the absence of NMR data for commercial products raise the risk of misidentification. This work reports a case in which purchased samples labeled as "berbamine" from 14 suppliers are oxyacanthine (). The NMR data of all purchased samples were consistent.

Gentiopicroside ameliorates psoriasis-like skin lesions in mice via regulating the Keap1-Nrf2 pathway and inhibiting keratinocyte activation.

Psoriasis is a chronic, systemic immune-mediated skin disease. Although many new strategies for psoriasis treatment have been developed, there is great need in clinic for treating psoriasis. Gentiopicroside (GPS), derived from Gentiana manshurica Kitagawa, has multiple pharmacological activities including anti-inflammatory, anti-oxidative and antiviral activities.

The gut-brain axis underlying hepatic encephalopathy in liver cirrhosis.

Up to 50-70% of patients with liver cirrhosis develop hepatic encephalopathy (HE), which is closely related to gut microbiota dysbiosis, with an unclear mechanism. Here, by constructing gut-brain modules to assess bacterial neurotoxins from metagenomic datasets, we found that phenylalanine decarboxylase (PDC) genes, mainly from Ruminococcus gnavus, increased approximately tenfold in patients with cirrhosis and higher in patients with HE. Cirrhotic, not healthy, mice colonized with R.

Predictive Value and Potential of Targeting Complement Factor C3 in Patients with Renal Injury in Preeclampsia.

Aim: The activation of the complement system is accompanied by the occurrence and development of preeclampsia, as well as kidney diseases. Here, the role of complement C3 [C3] in renal injury in preeclampsia was explored, and its potential application as an early diagnostic biomarker or drug target to ameliorate kidney injury induced by preeclampsia was preliminarily evaluated.

Method: A total of 48 subjects were included in the present study, and the complement C3 levels and renal function were analyzed.

Elucidation of the fine structure and anti-breast tumor activity of a glucomannan from the pseudobulbs of Pleione bulbocodioides.

Pseudobulbs of Pleione bulbocodioides have been used as traditional Chinese medicine for a long time to treat cancers through decoction with water. However, as its main water-soluble ingredient, the structure of polysaccharide has not been elucidated yet. To obtain its polysaccharide with antitumor activity, a series of isolation, structural identification and antitumor evaluation experiments were performed.

Metabolomic and transcriptomic analyses revealed potential mechanisms of Anchusa italica Retz. in alleviating cerebral ischemia-reperfusion injury via Wnt/β-catenin pathway modulation.

Anchusa italica Retz. (AIR), a traditional herbal remedy, is commonly applied in managing heart and brain disorders. However, its specific function and mechanism in acute cerebral ischemia-reperfusion injury (CIRI) are not fully understood.

Fumarprotocetraric acid and geraniin were identified as novel inhibitors of human respiratory syncytial virus infection .

Introduction: Respiratory syncytial virus (RSV) remains a major international public health concern. However, disease treatment is limited to preventive care with monoclonal antibodies and supportive care. In this study, natural products were screened to identify novel anti-RSV inhibitors.

Pharmacokinetics, mass balance, and metabolism of [C]PLB1004, a selective and irreversible EGFR-TKI in humans.

Purpose: PLB1004, developed by Beijing Avistone Biotechnology Co., Ltd., is a safe, highly selective, and efficient irreversible epidermal growth factor receptor tyrosine kinase inhibitor (EGFR-TKI) employed in treating non-small-cell-lung-cancer (NSCLC).

Simultaneous Quantification of Total Antibody and Conjugated Payload for DS001 in Rat Serum Using a Hybrid Immuno-Capture LC-MS/MS.

Antibody-drug conjugates (ADCs) are intricate compounds that pose significant challenges in bioanalytical characterization. Therefore, multiple bioanalytical methods are required to comprehensively elucidate their pharmacokinetic (PK) profiles. In this study, we investigated DS001, an ADC consisting of a humanized monoclonal antibody (hRS7), a cleavable chemical linker, and the microtubule inhibitor monomethyl auristatin E (MMAE), with a drug-to-antibody ratio (DAR) of 8.

Defining ortholog-specific UHRF1 inhibition by STELLA for cancer therapy.

UHRF1 maintains DNA methylation by recruiting DNA methyltransferases to chromatin. In mouse, these dynamics are potently antagonized by a natural UHRF1 inhibitory protein STELLA, while the comparable effects of its human ortholog are insufficiently characterized, especially in cancer cells. Herein, we demonstrate that human STELLA (hSTELLA) is inadequate, while mouse STELLA (mSTELLA) is fully proficient in inhibiting the abnormal DNA methylation and oncogenic functions of UHRF1 in human cancer cells.

Breath and Beyond: Advances in Nanomedicine for Oral and Intranasal Aerosol Drug Delivery.

Designing and standardizing drug formulations are crucial for ensuring the safety and efficacy of medications. Nanomedicine utilizes nano drug delivery systems and advanced nanodevices to address numerous critical medical challenges. Currently, oral and intranasal aerosol drug delivery (OIADD) is the primary method for treating respiratory diseases worldwide.

The Significant Therapeutic Effects of Chinese Scorpion: Modern Scientific Exploration of Ion Channels.

Chinese scorpion (CS), a traditional animal-based medicine used for over a millennium, has been documented since AD 935-960. It is derived from the scorpion Karsch and is used to treat various ailments such as stroke, epilepsy, rheumatism, and more. Modern research has identified the pharmacological mechanisms behind its traditional uses, with active components like venom and proteins showing analgesic, antitumor, antiepileptic, and antithrombotic effects.

Bis-Iridoid Glycosides and Triterpenoids from and Their Potential as Inhibitors of ACC1 and ACL.

A comprehensive phytochemical investigation of the twigs/leaves and flower buds of , a rare deciduous shrub native to China, led to the isolation of 39 structurally diverse compounds. These compounds include 11 iridoid glycosides (- and -), 20 triterpenoids (, , and -), and 8 phenylpropanoids (-). Among these, amabiliosides A () and B () represent previously undescribed bis-iridoid glycosides, while amabiliosides C () and D () feature a unique bis-iridoid-monoterpenoid indole alkaloid scaffold with a tetrahydro--carboline-5-carboxylic acid moiety.

Vitamin C and MEK Inhibitor PD0325901 Synergistically Promote Oligodendrocytes Generation by Promoting DNA Demethylation.

DNA methylation and demethylation are key epigenetic events that regulate gene expression and cell fate. DNA demethylation via oxidation of 5-methylcytosine (5mC) to 5-hydroxymethylcytosine (5hmC) is typically mediated by TET (ten-eleven translocation) enzymes. The 5hmC modification is considered an intermediate state of DNA demethylation; it is particularly prevalent in the brain and is believed to play a role in the development of many cell types in the brain.

Utilizing Lactic Acid Bacteria to Improve Hyperlipidemia: A Comprehensive Analysis from Gut Microbiota to Metabolic Pathways.

Hyperlipidemia poses significant risks for cardiovascular diseases, with emerging evidence underscoring the critical role of gut microbiota in metabolic regulation. This study explores CAAS36, a probiotic strain with promising cholesterol-lowering capabilities, assessing its impact on hyperlipidemic hamsters. Utilizing 1H NMR-based metabolomics and 16S rRNA gene sequencing, we observed that CAAS36 treatment not only altered metabolic pathways but also reshaped gut microbiota composition.

Structure Elucidation and Immunostimulatory Activity Evaluation of a Galactoglucan from Hance.

Hance has a medicinal history of thousands of years in treating cough, diabetes, and gastrointestinal system diseases, and it is also a medicine food homology (MFH) plant in China. To evaluate the pharmacological activities of polysaccharides from the rhizomes of , polysaccharides were initially obtained by hot-water extraction and the ethanol precipitation method. A homogenous polysaccharide designated as AOP-w was isolated by a DE-52 column.