Flavonoids: Their putative neurologic roles, epigenetic changes, and gut microbiota alterations in Parkinson's disease

Evaluation of Paracentrotus lividus spines extract antioxidant, antidiabetic, anti-inflammatory, antimicrobial, and mechanistic anticancer: Insights into its composition using UPLC-ESI-MS-based metabolomic profiling

Sea urchins are widely distributed in waters worldwide. The present study carried out the in vitro metabolomic bioactivity profiling using UPLCMS/MS of Paracentrotus lividus spines extract. Investigations were also conducted on molecular anticancer, anti-inflammatory, antidiabetic, antioxidant, and antibacterial properties. A comprehensive untargeted metabolic profiling of P. lividus spines extract resulted in the classification of more than 13 metabolites. Their metabolomic quantitative evaluations were assumed by measuring total phenolic, flavonoids, dihydroflavonol, sugar, and protein contents. The P. lividus spines extract exhibited powerful antioxidant capacity using DPPH*, ABTS+, reducing power, and phosphomolybdate assays. Moreover, P. lividus spines extract highly elucidated antidiabetic and anti-inflammatory activity by inhibiting α-amylase enzyme and protein denaturation. Further, the spines of the P. lividus exhibited significant antibacterial effects. Besides, extract from P. lividus spines showed a strong cytotoxic impact against a variety of HepG-2 and MCF-7 cancer cell lines. It was discovered that the P. lividus spines extract triggered cell cycle arrest in the sub-G0/G1 phase and suppressed the growth of cancer cells via suppressing mRNA of Akt/MAPK/Bcl-2/c-myc and protein expression of β-Catenin/ki-67. Conclusively, the extract derived from the spines of the sea urchin species P. lividus demonstrates significant potential for utilization in various pharmaceutical industries.

Integrating network pharmacology and in vivo study to explore the anti-Alzheimer's potential of Bergenia ligulata and Nelumbo nucifera

Amyloid plaque buildup, tau protein tangles, oxidative stress, and neuronal death are the hallmarks of Alzheimer's disease (AD). Using network pharmacology, molecular docking, and in vivo experiments, this study investigated the neuroprotective potential of Bergenia ligulata (BL) and Nelumbo nucifera (NN) against aluminum chloride (AlCl₃)-induced AD. Network pharmacology focused on important biomarker proteins like acetylcholinesterase (AChE), BCL2, and caspase-3 to identify 74 bioactive targets linked to AD. The evaluation of ligand-protein interactions was done using molecular docking. Male Wistar rats were exposed to AlCl₃ to cause AD-like pathology in vivo, and a combination treatment of BL and NN at varying doses was provided. Apoptosis markers (BCL2, caspase-3), biochemical investigations (AChE activity, oxidative stress markers-GSH, SOD, catalase, and lipid peroxidation), behavioral evaluations (elevated plus maze, conditioned avoidance test), and histopathological analyses were investigated. The combination of BL and NN demonstrated substantial neuroprotection in a dose-dependent manner. Reduced AChE levels point out improved cholinergic activity. Oxidative stress indicators showed improvement, with lower levels of malondialdehyde and higher anti-oxidant levels of GSH, SOD, and catalase. Apoptotic markers showed an increase in BCL2 expression and a decrease in caspase-3, suggesting anti-apoptotic effects. Reduced neuronal degeneration in the cortex and hippocampal regions was confirmed by histopathology of the brain. The synergistic potential of BL and NN demonstrated potent neuroprotective effects by modulating AChE activity, reducing oxidative stress, increasing anti-oxidant levels, and inhibiting apoptosis. These findings highlighted the potential of BL and NN as a new therapeutic approach for the AD.

Supplementary Information

The online version contains supplementary material available at 10.1007/s13205-025-04274-w.

Effect of new bioactive substances obtained from possible probiotic bacteria on miRNA expression by in vitro cocultivation in colorectal cancer cells

In our study, were evaluated effect on colorectal cancer cells of possible probiotic bacteria and new bioactive substances (paraprobiotics/postbiotics), miRNA-expression. Lactobacillus rhamnosus, Lactobacillus reuteri strains, HT-29, and Caco-2 were used. The cytotoxicity of the biotics was determined by MTT and miRNA expression. In line with the data obtained, it was determined that probiotics had a proliferative effect on the fibroblast cell line and a cytotoxic effect on cancer cells. It was observed that paraprobiotics had a minimal effect compared to probiotics, postbiotics had a greater effect. In this work, the activities of new pharmabiotics are compared with living cells, eliminating the limitations of probiotics in terms of shelf life and viability, and thus allowing the creation of new commercial domestic and national products, which increases the unique value of our study. In addition, there will be safer alternatives for suppressed immune systems, and various disadvantages of probiotics can be eliminated.

Psoraleae Fructus affects the livers of normal and ulcerative colitis rats differently by altering bile acid metabolism

ETHNOPHARMACOLOGICAL RELEVANCE

Psoraleae Fructus (PF), the dried mature fruit of the leguminous plant Psoralea corylifolia L., is often used as a nutraceutical and to treat ulcerative colitis (UC). However, recently there have been reports of PF-induced liver injury.

AIM OF THE STUDY

To investigate the difference and mechanism of hepatotoxicity between normal and UC rats oral administration with PF, and clarify the relationship between PF risk and disease status.

MATERIALS AND METHODS

PF water extracts (at the human equivalent dosage and 8-fold greater; 0.7 and 5.6 g/kg/day, respectively) were given to normal and UC rats for 4 weeks, and the general behaviors and colonic mucosal conditions were observed. The liver injury and its mechanism were studied by blood biochemistry, coagulation time, liver hematoxylin and eosin (H&E) staining, bile acids (BAs) metabolism, transcriptome analysis, quantitative real-time polymerase chain reaction (qRT‒PCR) and western blot (WB)experiments.

RESULTS

Normal rats receiving 5.6 g/kg PF water extract showed significantly increased serum levels of total bilirubin (TBIL) and total bile acids (TBA), significantly prolonged activated partial thromboplastin time (APTT), prothrombin time (PT) and thromboplastin time (TT), and slightly swollen hepatocytes, and obvious hepatobiliary hyperplasia. These liver injuries may be related to disordered BAs metabolism: the levels of farnesoid x receptor (FXR) and sulfotransferase family 2A member 1/2 (SULT2a1/a2) were down-regulated, whereas the levels of microsomal epoxide hydrolase (mEH), organic anion transporting polypeptide (OATP) and multidrug resistance-associated protein 3 (MRP3) were up-regulated, leading to liver and blood UnconBA and GlycineBA accumulation. However, at the same dose, UC model rats exhibited no obvious liver damage.

CONCLUSION

Normal rats, but not UC rats, displayed signs of liver injury in response to 5.6 g/kg PF water extract administration. Therefore, we recommend that healthy individuals should be aware of the potential risks associated with PF, and other patients should take PF according to their physician's guidance.

Unlocking the therapeutic potential of gut microbiota for preventing and treating aging-related neurological disorders

Billions of microorganisms inhabit the human gut and maintain overall health. Recent research has revealed the intricate interaction between the brain and gut microbiota through the microbiota-gut-brain axis (MGBA) and its effect on neurodegenerative disorders (NDDs). Alterations in the gut microbiota, known as gut dysbiosis, are linked to the development and progression of several NDDs. Studies suggest that the gut microbiota may be a viable target for improving cognitive health and reducing hallmarks of brain aging. Numerous pathways including hypothalamic-pituitary-adrenal axis stimulation, neurotransmitter release disruption, system-wide inflammation, and increased intestinal and blood-brain barrier permeability connect gut dysbiosis to neurological conditions. Metabolites produced by the gut microbiota influence neural processes that affect brain function. Clinical interventions depend on the capacity to understand the equilibrium between beneficial and detrimental gut microbiota, as it affects both neurodegeneration and neuroprotection. The importance of the gut microbiota and its metabolites during brain aging and the development of neurological disorders is summarized in this review. Moreover, we explored the possible therapeutic effects of the gut microbiota on age-related NDDs. Highlighting various pathways that connect the gut and the brain, this review identifies several important domains where gut microbiota-based interventions could offer possible solutions for age-related NDDs. Furthermore, prebiotics and probiotics are discussed as effective alternatives for mitigating indirect causes of gut dysbiosis. These therapeutic interventions are poised to play a significant role in improving dysbiosis and NDDs, paving the way for further research.

Camellia nitidissima Chi extract ameliorates dextran sulfate sodium-induced acute ulcerative colitis in mice by inhibiting TLR4/NF-κB-mediated inflammatory activation

Camellia nitidissima Chi (CNC), whose main composition was gallic acid, catechin, procyanidin-gallate, apigenin-pentosyl-glucoside, vitexin, cyanidin-3-o-glucoside, myricitrin-glucoside, gallocatechin-gallate, epicatechin and rutin, posses sound anti-inflammatory and antioxidant effects. This study aimed to explore the protective effects and mechanisms of the alcoholic extract of CNC on dextran sulfate sodium-induced ulcerative colitis. CNC effectively maintained weight and colon length, and significantly ameliorated colonic histopathological damage. Furthermore, CNC mitigated colitis-induced oxidative stress and exhibited anti-inflammatory properties in UC mice by reducing levels of myeloperoxidase (MPO) and malondialdehyde (MDA), decreasing the production of nitric oxide (NO), prostaglandin E2 (PGE2), interleukin-1β (IL-1β), interleukin-6 (IL-6), and tumor necrosis factor-α (TNF-α). In addition, CNC downregulated the protein expression levels of TLR4, p-NF-κBP65, and p-IκBα of the inflammation-related TLR4/NF-κB signaling pathways. Validation of the molecular docking results also revealed that rutin, the most abundant compound in CNC, interacts with TLR4 and NF-κB protein mainly through hydrogen bonds. CNC also promoted the proliferation of Lactobacillus and Bifidobacterium while reducing the number of Enterococcus, E. coli, Bacteroides, and Peptococcus in mice to improve the intestinal environment and alleviate colitis. CNC inhibited TLR4/NF-κB signaling pathways to relieve inflammation and oxidative damage on UC, is a potential development of natural medicine for UC.

Hypericum empetrifolium and H. lydium as Health Promoting Nutraceuticals: Assessing Their Role Combining In Vitro In Silico and Chemical Approaches

Hypericum species are known for their ability to produce multiple classes of secondary metabolite and in this article the possible health-promoting role of H. empetrifolium and H. lydium have been evaluated combining in vitro and in silico approaches. H. empetrifolium and H. lydium extracts were obtained using different solvents (ethyl acetate, aceton, aceton/water, and water) and the composition was compared using NMR and LC-MS based approaches. Myricetin-3-O-glucoside, Kaemempferol -3-O-glucoside, and hyperopliphylirrin were present only in H. empetrifolium. Rutin, quercetin-3-O-rhamnoside ant the triterpenoids oleanolic and ursolic acid were only detected in H. lydium. To establish a possible role against degenerative diseases antioxidant, antiradical activities of the extracts were studied and H. empetrifolium acetone/water and water extracts were the more active regarding these effects. The extracts were also evaluated for the inhibition of key-enzymes involved in degenerative diseases namely cholinesterase and tyrosinase for CNS-related pathologies and amylase for metabolic-related diseases. Significant inhibition of acetylcholinesterase was observed for the extracts obtained with lipophilic solvents. The extracts were also studied for their possible antiproliferative activity on cell lines including tumor (DU-145, A549, and MCF-7) and non-tumoral cells (HEK-293) revealing moderate activities. H. lydium ethyl acetate showed late apoptotic (17.5%) and necrotic (46.6%) effects in the Annexin V/PI assay. Molecular docking was used to establish possible interaction of identified compounds with target enzymes and a good interaction between rutin and tyrosinase, myricetin-7-O-glucoside and amylase, was reported. In conclusion, Hypericum empetrifolium and H. lydium thanks to their complex pattern of phytoconstituents and thanks to their significant antioxidant effects as well as with the ability to act on some key-target enzymes involved in degenerative diseases can be considered a good vegetal source for the preparation of nutraceuticals and food supplements useful as health-promoting products against oxidative stress-related diseases such as diabetes, cancer, and Alzheimer's disease.

Synaptic plasticity and neuroprotection: The molecular impact of flavonoids on neurodegenerative disease progression

Flavonoids are a broad family of polyphenolic chemicals that are present in a wide variety of fruits, vegetables, and medicinal plants. Because of their neuroprotective qualities, flavonoids have attracted a lot of interest. The potential of flavonoids to control synaptic plasticity-a crucial process underlying memory, learning, and cognitive function-is becoming more and more clear. Dysregulation of synaptic plasticity is a feature of neurodegenerative diseases such as amyotrophic lateral sclerosis (0.4 %), Parkinson's (1-2 %), Alzheimer's (5-7 %), and Huntington's ((0.2 %)). This review discusses the molecular mechanisms via which flavonoids influence synaptic plasticity as well as their therapeutic potential in neurodegenerative diseases. Flavonoids modulate key signaling pathways such as MAPK/ERK and PI3K/Akt/mTOR to support neuroprotection, synaptic plasticity, and neuronal health, while also influencing neurotrophic factors (BDNF, NGF) and their receptors (TrkB, TrkA). They regulate neurotransmitter receptors like GABA, AMPA, and NMDA to balance excitatory and inhibitory transmission, and exert antioxidant effects via the Nrf2-ARE pathway and anti-inflammatory actions by inhibiting NF-κB signaling, highlighting their potential for treating neurodegenerative diseases. These varied reactions support the preservation of synapse function and neuronal integrity in the face of neurodegenerative insults. Flavonoids can reduce the symptoms of neurodegeneration, prevent synaptic loss, and enhance cognitive function, according to experimental studies. However, there are still obstacles to using these findings in clinical settings, such as limited bioavailability and the need for consistent dose. The focus of future research should be on improving flavonoid delivery systems and combining them with conventional medications.

Formononetin ameliorates DSS-induced colitis by inhibiting the MAPK/PPAR-γ/NF-κB/ROS signaling pathways

BACKGROUND AND AIM

Formononetin (FMN) is a compound isolated from Astragalus membranaceus, that exhibits a range of pharmacological activities, including antitumor, anti-inflammatory, hypolipidemic, and antioxidant effects. Although preliminary study suggests that FMN have a therapeutic role in Inflammatory Bowel Disease (IBD), its specific mechanism of action requires further investigation. This study aimed to investigate the mechanism by which FMN treats DSS-induced colitis in mice.

METHODS

RAW264.7 and Bone marrow-derived macrophages (BMDMs) were treated with LPS to establish an inflammatory cell model. Biochemical parameters and morphological characteristics were assessed in the present or absent of FMN. 4 % solution of DSS was administered to C57BL/6 mice to induce IBD, which served as an animal model for investigating the pharmacodynamics of FMN.

RESULTS

FMN significantly reduced colitis-associated injury, as evidenced by a decrease in the disease activity index (DAI), weight gain, and restoration of colon length. Furthermore, FMN inhibits protein expression of NLRP3 inflammasome, suppressed the nuclear translocation of NF-κB/p65, and prevented mitochondrial damage, this process results in a reduction in the accumulation of reactive oxygen species (ROS). Additionally, FMN inhibited the mitogen-activated protein kinase (MAPK) signaling pathway, upregulated peroxisome proliferator-activated receptor gamma (PPAR-γ) in the nucleus, and decreased the release of inflammatory factors, thereby exerting anti-inflammatory effects.

CONCLUSION

By inhibiting mitochondrial damage, activating the MAPK/PPAR-γ/ROS signaling pathway, reducing the nuclear translocation of NF-κB, and suppressing the expression of NLRP3 inflammasome-associated proteins, FMN exerts anti-inflammatory effects.

Huaier inhibits the proliferation and migration of gastrointestinal stromal tumors by regulating the JAK2 / STAT3 signaling pathway

ETHNOPHARMACOLOGICAL RELEVANCE

Gastrointestinal stromal tumor (GIST) is the most common mesenchymal tumor of the digestive tract, often accompanied by a high risk of recurrence and drug resistance. Huaier (Trametes robiniophila Murr), a traditional Chinese medicinal fungus, has demonstrated potent anticancer properties and is widely used as an adjuvant treatment for liver, breast, gastric, colon, and non-small cell lung cancers. However, its effects and molecular mechanisms in GIST remain unclear.

AIM

This study aims to explore the inhibitory effects and underlying mechanisms of Huaier on GIST through network pharmacology and experimental validation.

MATERIALS AND METHODS

Initially, we utilized a publicly accessible database to identify the core targets and principal pathways associated with Huaier's therapeutic effects on gastrointestinal stromal tumors. To further evaluate its biological impact, cell viability, proliferation, migration, and invasion were assessed through CCK-8 and EdU assays, wound healing tests, and Transwell experiments. Apoptotic cell death was quantified using flow cytometry analysis. Additionally, the influence of Huaier extract on the expression levels of JAK2 and STAT3 proteins was examined via Western blotting. Finally, a subcutaneous xenograft mouse model was employed to investigate the anti-tumor efficacy of Huaier in vivo.

RESULTS

In this study, GAPDH, TNF, STAT3, ESR1, EGFR, IL6, CCND1, PTGS2, BCL2L1, and MAPK3 were identified as shared molecular targets, with the JAK/STAT signaling pathway recognized as the pivotal regulatory mechanism. Experimental findings demonstrated that Huaier exerted inhibitory effects on the proliferation, migration, and invasion of GIST-T1 and GIST-882 cells, exhibiting both dose- and time-dependent responses. Furthermore, Huaier was found to promote apoptosis in these cells. Western blot analysis revealed that treatment with Huaier extract significantly decreased the phosphorylation levels of JAK2 and STAT3, thereby suppressing the activation of the JAK2/STAT3 signaling cascade. In vivo experiments further substantiated these findings, showing that Huaier treatment markedly reduced tumor size and inhibited tumor progression.

CONCLUSIONS

Our results suggest that Huaier may inhibit the growth of GIST cells by inhibiting the JAK2/STAT3 signaling pathway, reduce cell proliferation, induce apoptosis, reduce cell migration and invasion, and show anti-tumor effects in vivo and in vitro.

trans-Ferulic Acid Antagonizes the Anti-Inflammatory Activity of Etoricoxib: Possible Interaction of COX-1 and NOS

This study emphasizes to investigate the modulatory activity of trans-ferulic acid (TFA) on anti-inflammatory activity of etoricoxib (ETO) and underlying mechanisms via formalin-induced licking and paw edema model and in silico study. Inflammation was induced by injecting formalin (50 µL) into the right hind paw of mice. The animals were treated with different doses of TFA (25, 50, and 75 mg/kg, p.o.). The vehicle and ETO (35 mg/kg, p.o.) were provided as positive and negative control, respectively. ETO also served combined with TFA to evaluate the modulatory activity. The licking behavior was counted for the early and late phases, whereas the paw edema diameter was measured by using a slide caliper. All treatment was continued for 7 days until the edema was totally minimized to determine the inflammation's recovery capability for a specific group. Different computed and web tools were used to estimate molecular binding affinity, binding interactions, and pharmacokinetics. The findings demonstrated that TFA significantly (p < 0.05) enhanced the onset of licking and reduced the number of licks compared to vehicle group. TFA also showed a significant (p < 0.05) diminished in paw edema and complete recovered of the edema after 5 days of treatment indicating the anti-inflammatory effects. However, TFA with ETO notably diminished the anti-inflammatory effects of ETO by enhancing paw edema diameter and licking number. TFA also expressed elevated binding affinity of -7.5 and -6.5 kcal/mol toward nitric oxide (NO) synthase and COX-1, respectively. In conclusion, TFA exerted anti-inflammatory effects and reduces anti-inflammatory capability of ETO.

Correlations Between Amelioration of Rotenone-Induced Parkinson's Symptoms by Amomum tsaoko Flavonoids and Gut Microbiota in Mice

Parkinson's disease (PD) is the second most common neurodegenerative disease, but the existing therapeutic drugs for PD have limitations; thus, there is an urgent need to discover new methods of prevention and treatment. Amomum tsaoko Crevost et Lemarie (AT) is a classic traditional Chinese medicine and food. Its main pharmacological effect is the regulation of the gastrointestinal tract. To date, no studies on the use of AT or its extracts to treat PD have been reported. In this study, a rotenone-induced PD mouse model was utilized to evaluate the protective effect of Amomum tsaoko flavonoids (ATFs) and to elucidate the role of the gut microbiota in this effect. The results demonstrated that ATFs not only ameliorated the motor and constipation symptoms but also reduced the loss of nigrostriatal dopaminergic neurons. Furthermore, ATFs reduced the expression of inflammation-related genes (TNF-α, IL-1β, IL-6, COX-2, and MCP-1) and increased the expression of gut barrier-related genes (Muc-2, ZO-1, Occludin, Claudin3, and Claudin4) in the colon. Notably, ATFs were able to reverse rotenone-induced gut dysbiosis, including a significant decrease in the abundance of conditionally pathogenic bacteria (Desulfovibrio, Provotellaceae UCG-001, the Lachnospiraceae_NK4A136_group, norank_f_Erysipelotrichacea, and the Eubacterium nodatum group) and an increase in the abundance of probiotics (Bifidobacterium and Faecalibaculum). Interestingly, these genera were found to be significantly associated with PD motor symptoms and constipation indicators. This suggests that ATFs have the potential to alleviate PD symptoms through the modulation of gut microbes. These findings provide a solid foundation for further investigations into the anti-PD mechanism of ATFs and their potential in the prevention and treatment of PD.

Mangiferin mitigates methotrexate-induced liver injury and suppresses hepatic stellate cells activation in rats: Imperative role of Nrf2/NF-κB/NLRP3 signaling axis

ETHNOPHARMACOLOGICAL RELEVANCE

Mangifera indica (family Anacardiaceae), often acknowledged as mango and renowned for being a plant of diverse ethnopharmacological background since ancient times, harbors the polyphenolic bioactive constituent, mangiferin (MNG). MNG is a major phytochemical of Mangifera indica and other plants with a wide range of reported pharmacological activities, including antioxidant, anti-inflammatory, neuroprotective and hepatoprotective effects. MNG has also been utilized in traditional medicine; it is reportedly a major bioactive element in over 40 polyherbal products in traditional Chinese medicine (TCM), and two prominent anti-inflammatory, immunomodulatory and antiviral Cuban formulations. Despite the availability of evidence in support of MNG hepatoprotective properties, its hepatoprotective potential against MTX-induced liver injury and fibrosis has not been explored yet.

AIM

To unravel the hepatoprotective potential of MNG against MTX-induced hepatic injury and fibrosis and elucidate the possible underlying molecular mechanisms.

MATERIALS AND METHODS

Male Sprague-Dawley rats were, randomly, distributed into five groups; two of which were administered MNG 50 mg/kg and MNG 100 mg/kg intraperitoneally (i.p.) for ten days, and a single i.p. injection of MTX 40 mg/kg on the seventh day to establish hepatotoxicity. Blood and liver tissue samples were retrieved from all study groups and analyzed for liver functions, histopathological alterations, and oxidative stress, inflammatory, and fibrotic biomarkers.

RESULTS

MNG restored the MTX-induced degenerations in hepatic architecture and function. Moreover, it combated the MTX-elicited oxidative stress evidently by the significantly attenuated hepatic tissue levels of malondialdehyde, and the significantly elevated reduced glutathione and Nrf2 levels. MNG also halted inflammation depicted by the downregulation of the NF-κB/NLRP3 inflammasome axis. It further demonstrated anti-fibrogenic potential as evidenced by the significant reduction in fibrous tissue deposition and hepatic expression of α-SMA.

CONCLUSION

The current study proved the hepatoprotective, and anti-fibrogenic effects of MNG against MTX-induced hepatotoxicity via the downregulation of NF-κB/NLRP3 inflammasome signaling axis, preceded by the amelioration of oxidative stress and Nrf2 signaling upregulation.

Caffeoylquinic acids from Silphium perfoliatum L. show hepatoprotective effects on cholestatic mice by regulating enterohepatic circulation of bile acids

ETHNOPHARMACOLOGICAL RELEVANCE

The incidence of cholestatic liver disease (CLD), which is primarily marked by abnormal bile acids (BAs) metabolism and can result in significant hepatic injury, is rising. Nevertheless, there remains a lack of effective treatments and drugs in clinical practice. Silphium perfoliatum L. (SP) is rich in various structural types of caffeoylquinic acid (CQA) compounds, and it is a traditional herb of North American Indians with hepatobiliary therapy effects. However, its therapeutic effect and mechanism of action on CLD have never been studied.

AIM OF THE STUDY

To determine if SP-8, an extract rich in CQAs from SP, protects against cholestatic liver injury induced by alpha-naphthylisothiocyanate (ANIT) and to clarify its mechanism based on the farnesoid x receptor (FXR) signaling pathway and enterohepatic circulation of BAs.

MATERIALS AND METHODS

The therapeutic efficacy of SP-8 was evaluated by assessing the serum biochemical indices, inflammatory factors, and liver histopathology. Targeted metabolomics of the BAs was studied in the feces, liver, serum, and bile using UPLC-MS/MS. Additionally, a Western blot analysis was used to examine the expression levels of the peroxisome proliferator-activated receptor γ (PPARγ), the FXR, and proteins related to the synthesis and transport of BAs. 16S rRNA gene sequencing was performed to evaluate the gut microbiota (GM). Finally, molecular docking simulations were conducted to assess the interaction between seven types of CQAs from SP-8 with FXR and PPARγ.

RESULTS

SP-8 significantly enhanced the health status of cholestatic mice induced by ANIT as evidenced by a notable reduction in the liver function indices and pro-inflammatory factors, restoration of liver pathological damage, and acceleration of BAs excretion through the feces. In addition, the levels of harmful secondary BAs in the liver and blood were significantly reduced by SP-8. Furthermore, the results of the study on the mechanism of action confirmed that SP-8 not only regulated FXR and PPARγ but also significantly ameliorated the GM structure, thereby promoting the enterohepatic circulation of BAs and achieving the homeostasis of the BAs in the blood and liver. In addition, SP-8 successfully reduced the inflammatory response by strongly suppressing the nuclear translocation of NF-κBp65. According to the molecular docking results, the extract's primary active ingredients could be the seven CQAs in SP-8, as they exhibited a strong affinity for both FXR and PPARγ. Finally, the Mantel test analysis revealed a significant correlation among cholestatic-associated parameters, the GM, and BAs.

CONCLUSION

It was confirmed for the first time that the SP-8 extract of Silphium perfoliatum L. that is rich in seven CQAs had a strong therapeutic effect on ANIT-induced CLD. Its mechanism may involve the regulation of the FXR signaling pathway and the amelioration of the GM structure to promote the homeostasis of BAs enterohepatic circulation. This study provides a potential candidate medicinal herb and its components for the development of CLD therapeutic drugs.

Corydalis yanhusuo extract and its pharmacological substances alleviate food allergy by inhibiting mast cells activation via PLC/PKC/STAT3 pathway

ETHNOPHARMACOLOGICAL RELEVANCE

Food allergies have increasingly become a disease that affects global health and need for corresponding therapeutic drugs urgently. As a traditional Chinses medicine with a wide range of pharmacological effects, however, there was no clear research confirming therapeutic effect and pharmacological substances of Corydalis yanhusuo (YHS) on food allergies. Mast cells (MCs) are the main effector cells which mediate allergic and pseudo-allergic reactions.

MATERIALS AND METHODS

In this study, we investigated the effect of YHS extract on treating food allergy and its underlying mechanism. The inhibitory effect of YHS on MCs activation in vitro was evaluated by Ca2+ influx, degranulation, and cytokine release detection. The in vivo effect was investigated using the passive cutaneous anaphylaxis (PCA), active systemic allergy as well as OVA-induced food allergy mice. Western blot was performed to reveal the signaling pathway.

RESULTS

YHS extract showed an inhibitory effect on MCs activation and food allergy both in vitro and in vivo. PLC/PKC/STAT3 signaling pathway was suppressed by YHS extract in the disease. HPLC analysis revealed YHS extract contains corydaline and tetrahydropalmatine, and both compounds inhibited MCs activation induced by C48/80 in vitro.

CONCLUSION

YHS extract inhibited the MCs activation and food allergy via PLC/PKC/STAT3 pathway.

Early developmental anomalies in zebrafish (Danio rerio) embryos induced by the Clematis florida Thunb

ETHNOPHARMACOLOGICAL RELEVANCE

The C.florida. is one of the common medicines used by She population in China, with therapeutic effects of promoting blood circulation and anti-inflammatory. According to the acute toxicity grading standard of chemical substances, this herb is a low-toxicity herb. At present, the safety of C.florida., especially its impact on early embryonic development, is still unclear.

AIM OF THE STUDY

This study investigated the toxic effects of C. florida. on early embryonic development using a zebrafish embryo model.

MATERIALS AND METHODS

In this study, we used zebrafish embryos exposed to C.florida. at early stage to assess the early developmental toxicity by analyzing the developmental toxicity phenotype, oxidative stress, cell apoptosis, total enzyme activity, behavioral trajectory, and gene expression levels.

RESULTS

Embryos of the zebrafish exposed to different concentrations of C.florida. exhibited multiple organs and systems developmental disorders, including the heart, vessels, brain, bone, liver, and so on. Especially, with the increase of drug concentration, it is observed that the developmental malformations of the cardiovascular structure and function in larvae are becoming increasingly severe. In addition, results show that the abnormalities in embryonic development may be attributed to oxidative stress induced by apoptosis and activation of immune system resulting from an imbalance in the hematopoietic system.

CONCLUSIONS

This study provides a comprehensive and detailed summary of the toxic effects of C.florida. on embryonic development, which contributes to a deeper understanding of the potential adverse developmental consequences, and also prompt people to pay considerable attention to its treatment in medicinal practice.

Cimicifuga heracleifolia kom. Attenuates ulcerative colitis through the PI3K/AKT/NF-κB signaling pathway

ETHNOPHARMACOLOGICAL RELEVANCE

Cimicifuga heracleifolia Kom. (C. heracleifolia) has demonstrated efficacy in treating gastrointestinal disorders, including splenasthenic diarrhea. Ulcerative colitis (UC), a chronic inflammatory bowel disease, shares similarities with splenasthenic diarrhea. However, the pharmacological effects of C. heracleifolia on UC and the underlying mechanisms remain unexplored.

AIM OF THE STUDY

The present study investigates the therapeutic potential and mechanisms of C. heracleifolia in UC.

METHODS

Initially, network pharmacology analysis, encompassing ingredient screening, target prediction, protein-protein interaction (PPI) network analysis, and enrichment analysis, was employed to predict the mechanisms of C. heracleifolia. The findings were further validated using transcriptomics and functional assays in a dextran sulfate sodium (DSS)-induced UC model. Additionally, bioactive compounds were identified through surface plasmon resonance (SPR) analysis, molecular docking, and cell-based assays.

RESULTS

A total of 52 ingredients of C. heracleifolia were screened, and 32 key targets were identified within a PPI network comprising 285 potential therapeutic targets. Enrichment analysis indicated that the anti-UC effects of C. heracleifolia are mediated through immune response modulation and the inhibition of inflammatory signaling pathways. In vivo experiments showed that C. heracleifolia mitigated histological damage in the colon, reduced the expression of phosphorylated Akt1, nuclear factor-kappa B (NF-κB) p65, and inhibitor of Kappa B kinase α/β (IKKα/β), suppressed the content of interleukin-1β (IL-1β), interleukin-6 (IL-6), and tumor necrosis factor-α (TNF-α), and enhanced the expression of tight junction proteins. Moreover, cimigenoside, caffeic acid, and methyl caffeate were identified as the bioactive constituents responsible for the UC treatment effects of C. heracleifolia.

CONCLUSIONS

In summary, this study is the first to demonstrate that C. heracleifolia exerts therapeutic effects on UC by enhancing the intestinal mucosal barrier and inhibiting the phosphatidylinositol 3-kinase (PI3K)/AKT/NF-κB signaling pathway. These findings offer valuable insights into the clinical application of C. heracleifolia for UC management.

Beyond digestion: Exploring how the gut microbiota modulates human social behaviors

For a long time, traditional medicine has acknowledged the gut's impact on general health. Contemporary science substantiates this association through investigations of the gut microbiota, the extensive community of microorganisms inhabiting our gastrointestinal system. These microscopic residents considerably improve digestive processes, nutritional absorption, immunological function, and pathogen defense. Nevertheless, a variety of gastrointestinal and extra-intestinal disorders can result from dysbiosis, an imbalance of the microbial composition of the gut microbiota. A groundbreaking discovery is the gut-brain axis, a complex communication network that links the enteric and central nervous system (CNS). This bidirectional communication allows the brain to influence gut activities and vice versa, impacting mental health and mood disorders like anxiety and depression. The gut microbiota can influence this communication by creating neurotransmitters and short-chain fatty acids, among other biochemical processes. These factors may affect our mental state, our ability to regulate our emotions, and the hypothalamic-pituitary-adrenal (HPA) axis. This study aimed to explore the complex interrelationships between the brain and the gut microbiota. We also conducted a thorough examination of the existing understanding in the area of how microbiota affects social behaviors, including emotions, stress responses, and cognitive functions. We also explored the potential of interventions that focus on the connection between the gut and the brain, such as using probiotics to treat diseases of the CNS. This research opens up new possibilities for addressing mental health and neurological conditions in an innovative manner.

Versatility of Caenorhabditis elegans as a Model Organism for Evaluating Foodborne Neurotoxins and Food Bioactive Compounds in Nutritional Neuroscience

Epidemiological evidence has shown that the regular ingestion of vegetables and fruits is associated with reduced risk of developing chronic diseases. The introduction of the 3Rs (replacement, reduction, and refinement) principle into animal experiments has led to the use of valid, cost-effective, and efficient alternative and complementary invertebrate animal models which are simpler and lower in the phylogenetic hierarchy. Caenorhabditis elegans (C. elegans), a nematode with a much simpler anatomy and physiology compared to mammals, share similarities with humans at the cellular and molecular levels, thus making it a valid model organism in neurotoxicology. This review explores the versatility of C. elegans in elucidating the neuroprotective mechanisms elicited by food bioactive compounds against neurotoxic effects of food- and environmental-related contaminants. Several signaling pathways linked to the molecular basis of neuroprotection exerted by bioactive compounds in chemically induced or transgenic C. elegans models of neurodegenerative diseases are also discussed. Specifically, the modulatory effects of bioactive compounds on the DAF-16/FoxO and SKN-1/Nrf2 signaling pathways, stress resistance- and autophagy-related genes, and antioxidant defense enzyme activities were highlighted. Altogether, C. elegans represent a valuable model in nutritional neuroscience for the identification of promising neuroprotective agents and neurotherapeutic targets which could help in overcoming the limitations of current therapeutic agents for neurotoxicity and neurodegenerative diseases.

GabaAergic sedative prospection of sclareol-linalool co-treatment: An antagonistic intervention through in vivo and in silico studies

Sleep disturbance causes many health problems in humans worldwide. This study evaluated the effects and possible mechanisms of sclareol (SCL) and/or linalool (LIN) through in vivo and in silico studies. For this, young chicks SCL (5, 10, and 20 mg/kg) and/or LIN (50 mg/kg) were orally administered thirty minutes before to the thiopental sodium (TS)-induced chicks with or without the standard drug diazepam (DZP: 3 mg/kg). Incidence, onset, and duration of sleep were then noted. The results suggest that SCL dose-dependently increased the onset and decreased the duration of sleep in animals. In contrast, LIN50 significantly (p < 0.05) decreased onset and increased sleep duration. SCL20 combined with LIN50 and/or DZP3 modulated the sleep parameters in animals. In combination, LIN50 showed better effects with DZP3, where the percentage decrease in latency and increase in sleep duration were 54.20 and 168.65 %, respectively. SCL20 when combined with LIN50 + DZP3 also modulated the onset and duration of sleep in animals. Further, in silico studies suggest that SCL and LIN have binding affinities with the 6X3X protein of the GABAA receptor (α1 and β2 subunits) of -6.9 and -6.8 kcal/mol, respectively. The standard drug DZP showed a binding affinity of -5.0 kcal/mol. Taken together, SCL may exert an angiogenic-like effect and antagonize LIN and/or DZP-mediated sedative effects in TS-induced chicks, possibly through the GABAA receptor α1 and β2 subunits interaction pathway.

Antioxidative Potential of 3-Methoxyluteolin: Density Functional Theory (DFT), Molecular Docking, and Dynamics-A Combined Experimental and Computational Study

The current study first describes the antioxidative potential of 3-methoxyluteolin. The experimental result is supported by computational approaches. The studied flavone (IC50 12.40 µg/mL) was comparable to ascorbic acid in antioxidative activity against 2,2-diphenyl-1-picrylhydrazyl (DPPH) radicals (IC50 11.38 µg/mL). From DFT (density functional theory) calculations, its principal radical mechanism in gas and lipid was the FHT (formal hydrogen transfer), whereas the SPL-ET (sequential proton loss-electron transfer) was the main way in water. Hydroxyl groups were crucial radical scavenging sites, especially at carbon C-4'. Kinetic evidence indicated that the reactions between the studied compound with HOO˙ radicals resulted in the koverall (overall rate constant) of 2.5 × 109 and 1.07 × 103 (M s)-1 in water and pentyl ethanoate, respectively. The studied molecule also chelated to Zn metal ion to form Zn(3-methoxyluteolin)2 complex with the lowest binding energy value of -322.911 kcal/mol. Considering the neurodegenerative inhibitory potentials of the studied compound, molecular docking results revealed that 3-methoxyluteolin interacted with the active sites of both acetylcholinesterase (AChE) and butyrylcholinesterase (BChE) with the binding affinities of -9.493 and -8.812 kcal/mol, respectively, which are stronger than the reference compound tacrine. To assess the structural stability and binding interactions with each studied protein, molecular dynamics simulations were conducted. The results indicated that the 3-methoxyluteolin complexes with AChE and BChE remained stable during a simulation period.

Toxicological profiling of methanolic seed extract of Abutilon indicum (L.) Sweet: in-vitro and in-vivo analysis

ETHNOPHARMACOLOGICAL RELEVANCE

Abutilon indicum, a shrub of the Malvaceae family, is found abundantly in tropical countries like India. A. indicum is widely used for its high medicinal properties. Traditionally, A. indicum seed powder is consumed to treat piles, constipation, chronic cystitis, gonorrhea, gleet, and pregnancy-related problems. Despite having numerous medicinal properties and widespread traditional use of A. indicum seeds, scientific validation, and toxicity studies have yet to be documented.

AIMS OF THE STUDY

The primary objective of this study is to conduct a comprehensive study on phytochemical profiling, in-vitro cytotoxicity, mutagenicity, and in-vivo acute and sub-acute toxicity, and genotoxicity on animal models of methanolic extract of A. indicum seed (MAS).

MATERIALS AND METHODS

The qualitative analysis of MAS was explored through FTIR and HR LC-MS. For in-vitro cytotoxicity, the HEK-293 cell line was used, and the TA100 (Staphylococcus typhimurium) bacterial strain was used for the Ames mutagenicity test. A single oral dose of 250, 500, 1000, or 2000 mg/kg body weight of MAS was given to each male and female rat for acute toxicity study and observed for 14 days for any toxicity signs. In the sub-acute toxicity study, 250, 500, or 1000 mg/kg body weight of MAS was administered orally to each rat for 28 days. The experimental animals were weighed weekly, and general behavior was monitored regularly. After 28 days of the experiment, the rats were sacrificed, and different serum biochemical, hematological, and histological analyses were performed. The blood samples of different doses of MAS were used for genotoxicity study through comet assay.

RESULTS

FTIR analysis found different functional groups, which indicated the presence of phenolics, flavonoids, and alkaloids. HR LC-MS analysis depicts several components with different biological functions. The cell cytotoxicity and Ames mutagenicity results showed minimal toxicity and mutagenicity up to a certain dose. The acute toxicity study conducted in Wistar albino rats demonstrated zero mortality among the animals, and the LD50 value for seed extract was determined to be 2000 mg/kg body weight. Sub-acute toxicity assessments indicated that the administration of seed extract resulted in no adverse effects at dosages of 250 and 500 mg/kg body weight. However, at higher doses, specifically 1000 mg/kg body weight, the liver of the experimental rats exhibited some toxic effects. In the genotoxicity study, minimal DNA damage was found in 250 and 500 mg/kg doses, respectively, but slightly greater DNA damage was found in 1000 mg/kg doses in both male and female rats.

CONCLUSIONS

The consumption of A. indicum seed powder is deemed safe; however, doses exceeding 500 mg/kg body weight may raise concerns regarding use. These findings pave the path for the creation of innovative medicines with improved efficacy and safety profiles.

Antivenom potential of the latex of Jatropha mutabilis baill. (Euphorbiaceae) against Tityus stigmurus venom: Evaluating its ability to neutralize toxins and local effects in mice

ETHNOPHARMACOLOGICAL RELEVANCE

Species of the Jatropha genus (Euphorbiaceae) are used indiscriminately in traditional medicine to treat accidents involving venomous animals. Jatropha mutabilis Baill., popularly known as "pinhão-de-seda," is found in the semi-arid region of Northeastern Brazil. It is widely used as a vermifuge, depurative, laxative, and antivenom.

AIM OF THE STUDY

Obtaining the phytochemical profile of the latex of Jatropha mutabilis (JmLa) and evaluate its acute oral toxicity and inhibitory effects against the venom of the scorpion Tityus stigmurus (TstiV).

MATERIALS AND METHODS

The latex of J. mutabilis (JmLa) was obtained through in situ incisions in the stem and characterized using HPLC-ESI-QToF-MS. Acute oral toxicity was investigated in mice. The protein profile of T. stigmurus venom was obtained by electrophoresis. The ability of latex to interact with venom components (TstiV) was assessed using SDS-PAGE, UV-Vis scanning spectrum, and the neutralization of fibrinogenolytic and hyaluronidase activities. Additionally, the latex was evaluated in vivo for its ability to inhibit local edematogenic and nociceptive effects induced by the venom.

RESULTS

The phytochemical profile of the latex revealed the presence of 75 compounds, including cyclic peptides, glycosides, phenolic compounds, alkaloids, coumarins, and terpenoids, among others. No signs of acute toxicity were observed at a dose of 2000 mg/kg (p.o.). The latex interacted with the protein profile of TstiV, inhibiting the venom's fibrinogenolytic and hyaluronidase activities by 100%. Additionally, the latex was able to mitigate local envenomation effects, reducing nociception by up to 56.5% and edema by up to 50% compared to the negative control group.

CONCLUSIONS

The latex of Jatropha mutabilis exhibits a diverse phytochemical composition, containing numerous classes of metabolites. It does not present acute toxic effects in mice and has the ability to inhibit the enzymatic effects of Tityus stigmurus venom in vitro. Additionally, it reduces nociception and edema in vivo. These findings corroborate popular reports regarding the antivenom activity of this plant and indicate that the latex has potential for treating scorpionism.

Chinese herbal formula, modified Guilu Erxian glue, alleviates apoptosis of hematopoietic stem cells by regulating SLAM-SAP signal pathway in aplastic anemia mice model

ETHNOPHARMACOLOGICAL RELEVANCE

Guilu Erxian Glue (GEG) and Danggui Buxue Tang (DBT) are traditional Chinese herbal formulas. According to the theory of traditional Chinese medicine, the combination of those two formulas (Modified Guilu Erxian Glue, MGEG) has the effects of tonifying the kidney and producing blood, was usually used to treat bone marrow failure diseases, including aplastic anemia (AA).

AIM OF THE STUDY

T lymphocytes play a crucial role in the disease pathogenesis and progression of AA. Our preliminary results confirmed that GEG can improve the damage of hematopoietic stem cells in mice, while DBT can reduce the proliferation and differentiation of T lymphocytes and inhibit the production of IFN-γ. We hypothesized that the combination of those two herbal formulas could inhibit immune attack and restore hematopoietic function through multiple mechanisms. In this study, we aim to study the curative effect of MGEG on regulating the expression of Signal lymphocyte activating molecule (SLAM), an activation-related molecule in T lymphocytes, thereby suppressing the immune function of T cells and decelerating the damage to hematopoietic stem cells.

MATERIALS AND METHODS

High-performance liquid chromatography-electrospray ionization/mass spectrometry system was used to identify the components of the MGEG formulation. Induction of aplastic anemia mouse model by injecting allogeneic lymphocyte suspension into BABL/c mice after ionizing radiation. Cyclosporine A (CsA) was used as a positive control drug. Flow cytometry was used to detect the number and apoptosis rate of hematopoietic stem cells in the bone marrow. Enzyme-linked immunosorbent assay was performed to measure the levels of IFN-γ and TNF-α. Immunofluorescence staining was used to assess the expression of T-bet and SLAM-SAP. Western Blot was conducted to examine the expression of activation-related molecules in T lymphocytes and proteins related to the Fas signal pathway. Hematoxylin-eosin staining was performed to observe pathological changes in the bone marrow tissue. Wright-Giemsa staining was utilized to evaluate alterations in the cellular composition and basic structure of the bone marrow cells (BMCs). Transmission electron microscopy was employed to observe changes in the structure and morphology of hematopoietic stem cells. The hematology analyzer was used to detect peripheral blood parameters.

RESULTS

Twenty-three different components were identified in MGEG. After MGEG treatment, the expression levels of Fyn and SLAM-SAP binding were increased in AA mice, while the expression levels of T-bet were decreased and the secretion of IFN-γ was reduced significantly. Additionally, MGEG also could downregulate the protein levels of Fas, caspase-3, and cleaved caspase-3 in AA mice.

CONCLUSION

MGEG could attenuate the production of IFN-γ by promoting the SLAM-SAP signal pathway to regulate the generation and distribution of T-bet in T cells. Additionally, it suppresses apoptosis of HSCs through intervention in the Fas-dependent pathway, thereby mitigating immune-mediated damage to HSCs.

Flavonoids and the gut microbiome: a powerful duo for brain health

Flavonoids, a class of polyphenolic compounds, are widely distributed in plant-based foods and have been recognized for their potential to promote overall health and well-being. Flavonoids in fruits and vegetables offer various beneficial effects such as anti-aging, anticancer, and anti-inflammatory properties. Flavonoids have been extensively studied for their neuroprotective properties, which are attributed to their ability to cross the blood-brain barrier and interact with neural cells. Factors like gut microbiota composition, age, genetics, and diet can impact how well flavonoids are absorbed in the gut. The gut microbiota can enhance the absorption of flavonoids through enzymatic processes, making microbiota composition a key factor influenced by age, genetics, and diet. Flavonoids can modulate the gut microbiota through prebiotic and antimicrobial effects, affecting the production of beneficial microbial metabolites like short-chain fatty acids (SCFAs) such as butyrate, which play a role in brain function and health. The gut microbiome also modulates the immune system, which is critical for preventing neuroinflammation. Additionally, flavonoids can benefit mental and psychological health by influencing anti-inflammatory signaling pathways in brain cells and increasing the absorption of tyrosine and tryptophan, precursors to neurotransmitters like serotonin, dopamine, norepinephrine, adrenaline, and gamma-aminobutyric acid (GABA). The flavonoid-gut microbiome axis is a complex and multifaceted relationship that has significant implications for neurological health. This review will explore how genetic and environmental factors can impact flavonoid absorption and the positive effects of flavonoids on brain health and the gut microbiota network.

Assessment of clot-lysing and membrane-stabilizing capacity of ascorbic acid: In vitro approach with molecular docking

This study aimed to evaluate the clot-lysing and membrane stabilizing capacities of ascorbic acid (AA) using in vitro and in silico methods. For this, we used in vitro clot lysis and hemolyzing tests to check the anti-atherothrombosis and membrane-stabilizing properties of AA, respectively. Additionally, molecular docking studies were performed to investigate AA's interactions with cyclooxygenase-1 (COX-1) and plasminogen enzymes. Findings suggest that AA exhibited a concentration-dependent effect, with 43.95 ± 1.27 % clot lysis and 64.46 ± 0.01 % membrane stabilization at 100 µg/mL. The IC50 values for clot lysis and membrane stabilization were 215.19 ± 1.09 and 57.21 ± 2.11 µg/mL, respectively. In silico analysis showed strong binding affinities of AA with COX-1 (-6.2 kcal/mol) and plasminogen (-5.8 kcal/mol), supporting its observed clot lysis and membrane protection activities. Taken together, AA showed moderate clot-lysing and robust membrane-stabilizing effects, which may be due to its strong antioxidant and anti-inflammatory properties. AA might be a good therapeutic agent for atherothrombosis and membrane damage, highlighting the need for further investigation into its underlying molecular mechanisms and potential clinical applications. AA shows promising clot-lysing and membrane-stabilizing effects, highlighting its therapeutic potential for atherothrombosis and membrane damage.

Combinatorial intervention with dental pulp stem cells and sulfasalazine in a rat model of ulcerative colitis

BACKGROUND

Ulcerative colitis is an inflammatory bowel disease (IBD) that involves inflammation of the colon lining and rectum. Although a definitive cure for IBD has not been identified, various therapeutic approaches have been proposed to mitigate the symptomatic presentation of this disease, primarily focusing on reducing inflammation. The aim of the present study was to evaluate the therapeutic potential of combining dental pulp stem cells (DPSCs) with sulfasalazine in an acetic acid-induced ulcerative colitis rat model and to assess the impact of this combination on the suppression of inflammatory cytokines and the regulation of oxidative stress in vivo.

METHODS

Ulcerative colitis was induced in rats through transrectal administration of 3% acetic acid. The therapeutic effect of combining DPSCs and sulfasalazine on UC was evaluated by measuring the colonic weight/length ratio and edema markers; performing histopathological investigations of colon tissue; performing immunohistochemical staining for NF-κB-P65 and IL-1β; and evaluating oxidative stress and antioxidant indices via ELISA. Moreover, the proinflammatory markers NF-κB-P65, TNF-α and TLR-4 were assessed in colon tissue via ELISA. Furthermore, qRT‒PCR was used to estimate the expression levels of the TLR-4, NF-κB-P65, and MYD88 genes in colon tissue.

RESULTS

The investigated macroscopic and microscopic signs of inflammation were markedly improved after the combined administration of sulfasalazine and DPSCs, where a noticeable improvement in histological structure, with an intact mucosal epithelium and mild inflammatory infiltration in the mucosa and submucosa, with slight hemorrhage. The administration of either DPSCs or sulfasalazine, either individually or in combination, significantly reduced ROS levels and significantly increased XOD activity. The immunohistochemical results demonstrated that the combined administration of DPSCs and sulfasalazine attenuated NFκB-p65 and IL-1β expression. Finally, the combined administration of DPSCs and sulfasalazine significantly downregulated MyD88, NF-κB and TLR4 gene expression.

CONCLUSIONS

Cotreatment with DPSCs and sulfasalazine had synergistic effects on ulcerative colitis, and these effects were relieved.

Zhumeria majdae essential oil attenuates TNBS-induced colitis in rats by regulating inflammatory and apoptotic pathways

BACKGROUND AND AIM

Zhumeria majdae, a unique native plant of southern Iran, has been traditionally used to treat various health issues. Preclinical studies suggest its therapeutic potential for immunological and inflammatory disorders. This study investigates the effect of Z. majdae essential oil (ZMEO) on TNBS-induced colitis in rats, focusing on the NF-κB/p38 MAPK/Nrf-2 pathway.

EXPERIMENTAL PROCEDURE

Forty-eight male Wistar rats were used, with all groups except the sham group receiving a single intra-rectal dose of TNBS. Three different doses of ZMEO and also 1 mg/kg dexamethasone were administered orally for 2 weeks. Colon tissue was analyzed for ulcer index, histological changes, inflammatory cytokines, apoptotic factors, and levels of NF-κB, p38 MAPK, and Nrf-2.

KEY RESULTS

GC-mass analysis identified 25 compounds with linalool (52.01%) and camphor (31.01%) as the major compounds in ZMEO. ZMEO ameliorated colon injuries, reduced ulcer index, and prevented the elevation of pro-inflammatory cytokines and pro-apoptotic proteins. It also increased the levels of IL-10 and Bcl-2 proteins. Furthermore, ZMEO decreased the expression of p-NF-κB and p38 MAPK while increasing the expression of pNrf-2.

CONCLUSIONS

ZMEO mitigates colon damage associated with IBD by suppressing inflammatory cytokines and pro-apoptotic proteins possibly through modulating the NF-κB/p38 MAPK/Nrf-2 signaling pathway.

Neuroprotective Role of Transchalcone in Parkinson's Disease through AMP-activated Protein Kinase-mediated Signaling Pathway

ABSTRACT

Parkinson's disease (PD) is a gradually worsening neurodegenerative condition marked by the deterioration of dopaminergic neurons, motor dysfunction, and mitochondrial dysfunction. Trans-chalcone, a natural flavonoid, has shown promise in various disease models because of its antioxidant and anti-inflammatory features. This study investigates the neuroprotective effects of transchalcone in a rat model of PD, focusing on its impact on the activation levels of AMP-activated protein kinase (AMPK) signaling pathway, sirtuin1 (SIRT1) and peroxisome proliferator-activated receptor gamma coactivator 1-alpha (PGC1α) proteins, and mitochondrial-inflammatory responses. Male Sprague Dawley rats were allocated into five groups Control, Control plus transchalcone, PD, PD plus transchalcone, PD plus compound-C, and PD plus Compound-C and trans-chalcone. PD was induced using intranigral 6-hydroxydopamine injection. Trans-chalcone (100 μg/kg) and compound-C (20 mg/kg) were intraperitoneally administered daily for 4 weeks in PD rats. Motor function was assessed using rota-rod and grid tests. Striatal dopamine and cytokines (interleukin 1-beta [IL-1 β], IL-10) and p65-nuclear factor kappa-B (NF-κB) levels were measured with enzyme-linked immunosorbent assay. Mitochondrial function was evaluated by fluorometric techniques. The expression of phosphorylated AMPK, PGC-1α, and SIRT1 was analyzed by Western blotting. Trans-chalcone treatment significantly improved motor function, evidenced by increased latency to fall in the rota-rod test and recovered traversal time in the grid test. It also restored dopamine levels, enhanced mitochondrial function (reduced reactive oxygen species levels, increased membrane potential, and adenosine triphosphate production), normalized cytokines (IL-1 β, IL-10) and p65-NF-κB, and upregulated the proteins expression in rats with PD. Inhibition of AMPK activity with compound-C suppressed the neuroprotective impacts of trans-chalcone, highlighting the contribution of AMPK signaling pathway in its mechanism of action. Neuroprotective and mitoprotective impacts of trans-chalcone were mostly mediated through the activation of AMPK-SIRT1-PGC1α pathway. These results indicate that trans-chalcone could be a promising therapeutic agent for PD, warranting further investigation to assess its efficacy and safety in human patients.

Morinda officinalis iridoid glycosides alleviate methotrexate-induced liver injury in CIA rats by increasing liver autophagy and improving lipid metabolism homeostasis

ETHNOPHARMACOLOGICAL RELEVANCE

Morinda officinalis How. is a commonly used traditional Chinese herb with the pharmacological properties of tonifying liver and kidney, and enhancing bone and muscle. Iridoid glycosides are the predominant components of this plant, including monotropein, asperuloside, deacetylasperuloside and deacetylasperulosidic acid with their contents reaching more than 2%. Methotrexate (MTX) is the drug of choice for the treatment of rheumatoid arthritis (RA), but liver injury induced by MTX limits its wider use for RA. Morindaofficinalis iridoid glycoside (MOIG) is reported as having anti-RA and hepatoprotective effects, but the exact efficacy on MTX-induced liver injury and the underlying molecular mechanism remain unclear.

AIM

To elucidate the mitigating effect of MOIG against liver injury in RA rats treated with MTX, and explore the possible mechanism.

MATERIALS AND METHODS

The effect and mechanism of MOIG were investigated in Wistar rats with collagen-induced arthritis (CIA) which were then treated with MTX, and MTX-induced hepatocyte injury in vitro. Network pharmacological and transcriptomic analyses were conducted to predict the possible mechanisms of MOIG in mitigating MTX-induced liver injury, and lipidomic analysis was performed to further verify the regulatory effects of MOIG on lipid metabolism. BRL-3A hepatocytes were used to evaluate the regulatory effects of MOIG against MTX-associated liver injury.

RESULTS

MOIG treatment enhanced the anti-RA effect of MTX, and mitigated oxidative damage, inflammation and apoptosis of liver tissues in CIA rats treated with MTX. Network pharmacological and transcriptomic analyses demonstrated that MOIG attenuated liver injury by regulating autophagy and lipid metabolism. The result of lipidomic analysis showed that MOIG reversed the disturbance of lipid metabolism of the liver tissue in CIA rats after MTX treatment. In addition, MOIG also inhibited the apoptosis, reduced the levels of lactate dehydrogenase (LDH), aspartate aminotransferase (ALT) and alanine aminotransferase (AST), regulated oxidative stress, and increased the formation of autophagosome and translocation of LC3 in the nucleus and expression of autophagy regulatory genes Beclin-1, ATG5, LC3Ⅱ, ATG7 and ATG12 in hepatocytes subjected to MTX damage.

CONCLUSION

Our findings demonstrated that MOIG could ameliorate MTX-induced liver injury in the treatment of RA through increasing hepatocyte autophagy and improving lipid metabolism homeostasis.

Gut microbiota-NLRP3 inflammasome crosstalk in metabolic dysfunction-associated steatotic liver disease

Nonalcoholic fatty liver disease (NAFLD) is a chronic liver disease associated with metabolic dysfunction, ranging from hepatic steatosis with or without mild inflammation to nonalcoholic steatohepatitis, which can rapidly progress to liver fibrosis and even liver cancer. In 2023, after several rounds of Delphi surveys, a new consensus recommended renaming NAFLD as metabolic dysfunction-associated steatotic liver disease (MASLD). Ninety-nine percent of NAFLD patients meet the new MASLD criteria related to metabolic cardiovascular risk factors under the "multiple parallel hits" of lipotoxicity, insulin resistance (IR), a proinflammatory diet, and an intestinal microbiota disorder, and previous research on NAFLD remains valid. The NLRP3 inflammasome, a well-known member of the pattern recognition receptor (PRR) family, can be activated by danger signals transmitted by pathogen-associated molecular patterns (PAMPs) and damage-associated molecular patterns (DAMPs), as well as cytokines involved in immune and inflammatory responses. The activation of the NLRP3 inflammasome pathway by MASLD triggers the production of the inflammatory cytokines IL-1β and IL-18. In MASLD, while changes in the composition and metabolites of the intestinal microbiota occur, the disrupted intestinal microbiota can also generate the inflammatory cytokines IL-1β and IL-18 by damaging the intestinal barrier, negatively regulating the liver on the gut-liver axis, and further aggravating MASLD. Therefore, modulating the gut-microbiota-liver axis through the NLRP3 inflammasome may emerge as a novel therapeutic approach for MASLD patients. In this article, we review the evidence regarding the functions of the NLRP3 inflammasome and the intestinal microbiota in MASLD, as well as their interactions in this disease.

Plantaginis semen ameliorates diabetic kidney disease via targeting the sphingosine kinase 1/sphingosine-1-phosphate pathway

ETHNOPHARMACOLOGICAL RELEVANCE

Plantaginis Semen (PS) is widely utilized as a common herb in several Asian countries, particularly China, due to its diuretic, anti-hypertensive, anti-hyperlipidemic, and anti-hyperglycemic properties. Furthermore, it is acknowledged for its ability to mitigate renal complications associated with metabolic syndrome. Despite its extensive usage, there is limited systematic literature elucidating its therapeutic mechanisms, thus emphasizing the necessity for comprehensive investigations in this field.

AIM

This study aims to comprehensively evaluate the therapeutical potential of PS in treating diabetic kidney disease (DKD) and to elucidate the underlying mechanisms through in vivo and in vitro models.

METHODS

The main composition of PS were characterized using the UPLC-QTOF-MS method. For the in vivo investigation, a mouse model mediated by streptozocin (STZ) associated with a high-fat diet (HFD) and unilateral renal excision was established. The mice were split into 6 groups (n = 8): control group (CON group), DKD group, low-dose of Plantago asiatica L. seed extract group (PASE-L group, 3 g/kg/d), medium-dose of PASE group (PASE-M, 6 g/kg/d), high-dose of PASE group (PASE-H, 9 g/kg/d), and positive drug group (valsartan, VAS group, 12 mg/kg/d). After 8 weeks of treatment, the damage induced by DKD was evaluated by using relevant parameters of urine and blood. Furthermore, indicators of inflammation and factors associated with the SphK1-S1P signaling pathway were investigated. For the in vitro study, the cell line HBZY-1 was stimulated by high glucose (HG), they were then co-cultured with different concentrations of PASE, and the corresponding associated inflammatory and sphingosine kinase 1/sphingosine-1-phosphate (SphK1-S1P) factors were examined.

RESULTS

A total of 59 major components in PS were identified, including flavonoids, iridoids, phenylethanol glycosides, guanidine derivatives, and fatty acids. In the mouse model, PS was found to significantly improve body weight, decrease fasting blood glucose (FBG) levels, increased glucose tolerance and insulin tolerance, improved kidney-related markers compared to the DKD group, pathological changes in the kidneys also improved dramatically. These effects showed a dose-dependent relationship, with higher PASE concentrations yielding significantly better outcomes than lower concentrations. However, the effects of the low PASE concentration were not evident for some indicators. In the cellular model, the high dose of PASE suppressed high glucose (HG) stimulated renal mesangial cell proliferation, suppressed inflammatory factors and NF-κB, and decreased the levels of fibrillin-1(FN-1) and collagen IV(ColIV).

CONCLUSION

Our results indicate that PS exerts favorable therapeutic effects on DKD, with the possible mechanisms including the inhibition of inflammatory pathways, suppression of mRNA levels and protein expressions of SphK1 and S1P, consequently leading to reduced overexpression of FN-1 and ColIV, thereby warranting further exploration.

Co-administration of probiotics and vitamin D reduced disease severity and complications in patients with Parkinson's disease: a randomized controlled clinical trial

RATIONALE

Probiotics have beneficial effects on the nervous system by modulating the gut-brain axis. Additionally, vitamin D supplementation presents a potential way for ameliorating neuropsychological disorders, particularly in regions with a high prevalence of vitamin D deficiency.

OBJECTIVES

The current clinical trial aimed to investigate the role of co-administered supplementation of probiotics and Vitamin D on the different inflammatory aspects of patients with Parkinson's disease.

METHODS

Forty-six patients with PD were recruited From the Functional Neurosurgery Research Center, Tehran, Iran. These patients were randomly allocated to one of the two treatment groups: Group A, who received probiotic/vitamin D supplements (n = 23), and Group B who received placebo capsules (n = 23) for 12 weeks. As primary outcomes, Interferon-Gamma (IFN-γ), interleukin 1 beta (IL-1β), IL-6, IL-10, Tumor Necrosis Factor-Alpha (TNF-α), total antioxidant capacity (TAC), and malondialdehyde (MDA) in serum were evaluated at the baseline and the end of the trial. Moreover, Additional questionnaire-based factors including gastrointestinal symptom rating scale (GSRS), Beck Anxiety Inventory (BAI), and Unified Parkinson's Disease Rating Scale (UPDRS) were evaluated.

RESULTS

Our findings demonstrated that the consumption of probiotic/vitamin D supplements leads to a significant decrease in IL-1β, INF-γ, IL-6, and MDA levels, while showing a significant increase in IL-10 and TAC levels compared to the placebo group (P < 0.05). Additionally, it leads to a significant decrease in the disease severity, anxiety, and gastrointestinal problems in PD patients in comparison to the placebo group (P < 0.05).

CONCLUSIONS

Given the acknowledged role of inflammation in the pathogenesis of Parkinson's disease on one hand, and the recognized anti-inflammatory and antioxidant effects associated with probiotics and vitamin D on the other hand, the concurrent administration of probiotics and vitamin D supplements emerges as a promising and potentially effective treatment option for individuals with PD.

Paeonia genus: a systematic review of active ingredients, pharmacological effects and mechanisms, and clinical applications for the treatment of cancer

The main active constituents of plants of the Paeonia genus are known to have antitumor activity. Hundreds of compounds with a wide range of pharmacological activities, including monoterpene glycosides, flavonoids, tannins, stilbenes, triterpenoids, steroids, and phenolic compounds have been isolated. Among them, monoterpenes and their glycosides, flavonoids, phenolic acids, and other constituents have been shown to have good therapeutic effects on various cancers, with the main mechanisms including the induction of apoptosis; the inhibition of tumor cell proliferation, migration, and invasion; and the modulation of immunity. In this study, many citations related to the traditional uses, phytochemical constituents, antitumor effects, and clinical applications of the Paeonia genus were retrieved from popular and widely used databases such as Web of Science, Science Direct, Google Scholar, and PubMed using different search strings. A systematic review of the antitumor constituents of the Paeonia genus and their therapeutic effects on various cancers was conducted and the mechanisms of action and pathways of these phytochemicals were summarised to provide a further basis for antitumor research.

Rosuvastatin repurposing for prophylaxis against ethanol-induced acute gastric ulceration in rats: a biochemical, histological, and ultrastructural perspective

Ethanol (EtOH) consumption is frequently associated with acute and chronic gastrointestinal disorders. Rosuvastatin (RSV), a third-generation statin, has demonstrated certain biological functions beyond its lipid-lowering properties. This study is designed to explore the gastroprotective impact of RSV in a rat model of EtOH-induced gastric ulceration in a dose-dependent manner through the evaluation of oxidant/antioxidant biomarkers, inflammatory myeloperoxidase (MPO) enzyme activity, and prostaglandin E2 (PGE2) levels in gastric tissues, along with histopathological examination of the gastric tissues. Therefore, 40 adult male rats were randomly divided into five equal groups as control, EtOH (gastric ulcer), RSV-low dose plus EtOH and RSV-high dose plus EtOH. The EtOH rat model of gastric ulceration was achieved by intragastric administration of a single dose of EtOH. Seven days before EtOH administration, rats were orally administered either omeprazole (20 mg/kg/day) or RSV (10 mg/kg/day or 20 mg/kg/day). RSV administration enhanced the antioxidant glutathione reduced, countered oxidative malondialdehyde, augmented cytoprotective PGE2, suppressed inflammatory MPO enzyme activity in gastric tissues, decreased ulcer index scoring, increased the percentage of ulcer inhibition, and reversed the associated histological and ultrastructural abnormalities, additionally, RSV treatment resulted in weak positive nuclear staining for the inflammatory nuclear factor kappa B in a dose-dependent manner. It is concluded that RSV demonstrates gastroprotective potential, attributable at least in part, to its antioxidant and anti-inflammatory properties, as well as its ability to promote ulcer protection through the maintenance of mucosal content and PGE2 levels. Thus, RSV therapy emerges as a safe option for patients with gastric ulcers.

Effectiveness of Flavonoid-Rich Diet in Alleviating Symptoms of Neurodegenerative Diseases

Over the past decades, there has been a significant increase in the burden of neurological diseases, including neurodegenerative disorders, on a global scale. This is linked to a widespread demographic trend in which developed societies are aging, leading to an increased proportion of elderly individuals and, concurrently, an increase in the number of those afflicted, posing one of the main public health challenges for the coming decades. The complex pathomechanisms of neurodegenerative diseases and resulting varied symptoms, which differ depending on the disease, environment, and lifestyle of the patients, make searching for therapies for this group of disorders a formidable challenge. Currently, most neurodegenerative diseases are considered incurable. An important aspect in the fight against and prevention of neurodegenerative diseases may be broadly understood lifestyle choices, and more specifically, what we will focus on in this review, a diet. One proposal that may help in the fight against the spread of neurodegenerative diseases is a diet rich in flavonoids. Flavonoids are compounds widely found in products considered healthy, such as fruits, vegetables, and herbs. Many studies indicated not only the neuroprotective effects of these compounds but also their ability to reverse changes occurring during the progression of diseases such as Alzheimer's, Parkinson's and amyotrophic lateral sclerosis. Here, we present the main groups of flavonoids, discussing their characteristics and mechanisms of action. The most widely described mechanisms point to neuroprotective functions due to strong antioxidant and anti-inflammatory effects, accompanied with their ability to penetrate the blood-brain barrier, as well as the ability to inhibit the formation of protein aggregates. The latter feature, together with promoting removal of the aggregates is especially important in neurodegenerative diseases. We discuss a therapeutic potential of selected flavonoids in the fight against neurodegenerative diseases, based on in vitro studies, and their impact when included in the diet of animals (laboratory research) and humans (population studies). Thus, this review summarizes flavonoids' actions and impacts on neurodegenerative diseases. Therapeutic use of these compounds in the future is potentially possible but depends on overcoming key challenges such as low bioavailability, determining the therapeutic dose, and defining what a flavonoid-rich diet is and determining its potential negative effects. This review also suggests further research directions to address these challenges.

Association of methyl donor nutrients dietary intake and sleep disorders in the elderly revealed by the intestinal microbiome

Currently, sleep disorders (SD) in the elderly are gaining prominence globally and are becoming a significant public health concern. Methyl donor nutrients (MDNs), such as vitamin B6, vitamin B12, folate, and choline, have been reported to have the potential to improve sleep disorders. Moreover, MDNs help to maintain gut flora homeostasis, and are closely associated with the development of SD. Nevertheless, there has been a lack of comprehensive human studies examining the association between MDNs intake and SD. In our study, we comprehensively evaluated the association between MDNs intake and SD in the elderly and used 16S rRNA gene sequencing to explore the underlying mechanism. We found that the SD group (n = 91) had a lower methyl-donor nutritional quality index (MNQI) and a trend toward lower intake compared to the control group (n = 147). Based on the intestinal microbiome, the beta diversity of the intestinal flora was higher in the high methyl-donor nutritional quality (HQ) group compared to the low methyl-donor nutritional quality (LQ) group, and it was lower in the SD group compared to the control group. This suggests that MDNs may regulate sleep by modulating the abundance distribution of the microbiota. Subsequently, we performed correlation analyses between the relative abundance of the microbiota, MDNs intake, and the Pittsburgh Sleep Quality Index (PSQI), identifying five genera with potential regulatory roles. The KEGG pathway analysis indicated that energy metabolism and one-carbon metabolism might be the pathways through which MDNs modulate sleep. This study offers dietary guidance strategies for managing SD in the elderly and provides insights for targeted microbiota intervention.

Salvianolic acid extract prevents Tripterygium wilfordii polyglycosides-induced acute liver injury by modulating bile acid metabolism

ETHNOPHARMACOLOGICAL RELEVANCE

Tripterygium wilfordii polyglycosides (TWP) tablet is the most widely used traditional Chinese medicine preparation for the treatment of rheumatoid arthritis (RA), but the hepatotoxicity often limits its widespread application. In traditional use, Salvia miltiorrhiza has cardioprotective and hepatoprotective effects. Salvianolic acid extract (SA) is a hydrophilic component of Salvia miltiorrhiza and has significant antioxidant and hepatoprotective effects.

AIM OF THE STUDY

To investigate the protective effects of SA on the TWP-induced acute liver injury in rats and to explore the related mechanisms by integration of metabolomics and transcriptomics.

MATERIALS AND METHODS

SA and TWP extracts were identified by UPLC-Q/TOF-MS. SA (200 mg/kg) was administered for consecutive 7 days. On day 7, TWP (360 mg/kg) was administered by gavage to induce the acute liver injury in rats. Serum biochemical assay and H&E staining were used to evaluate liver damage. Liver metabolomics and transcriptomics were used to explore the potential mechanisms, and further molecular biological experiments such as qPCR and IHC were utilized to validate the relevant signaling pathways.

RESULTS

SA can prevent liver injury symptoms caused by TWP, such as elevated liver index, elevated ALT and AST, and pathological changes in liver tissue. Liver metabolomics studies showed that TWP can significantly alter the content of individual bile acid in the liver and SA had the most significant impact on the biosynthetic pathway of bile acids. The transcriptomics results of the liver indicated that the genes changed in the SA + TWP group were mainly involved in sterol metabolism, lipid regulation and bile acid homeostasis pathways. The gene expression of Nr1h4, which encodes farnesoid X receptor (FXR), an important regulator of bile acid homeostasis, was significantly changed. Further studies confirmed that SA can prevent the downregulation of FXR and its downstream signaling induced by TWP, thereby regulating bile acid metabolism, ultimately preventing acute liver injury caused by TWP.

CONCLUSION

Our results demonstrated that SA could protect the liver from TWP-induced hepatic injury by modulation of the bile acid metabolic pathway. SA may provide a new strategy for the protection against TWP-induced acute liver injury.

Dietary flavonoids modulate the gut microbiota: A new perspective on improving autism spectrum disorder through the gut-brain axis

Autism spectrum disorder (ASD) is a neurodevelopmental disorder with an unknown etiology. It is associated with various factors and causes great inconvenience to the patient's life. The gut-brain axis (GBA), which serves as a bidirectional information channel for exchanging information between the gut microbiota and the brain, is vital in studying many neurodegenerative diseases. Dietary flavonoids provide anti-inflammatory and antioxidant benefits, as well as regulating the structure and function of the gut microbiota. The occurrence and development of ASD are associated with dysbiosis of the gut microbiota. Modulation of gut microbiota can effectively improve the severity of ASD. This paper reviews the links between gut microbiota, flavonoids, and ASD, focusing on the mechanism of dietary flavonoids in regulating ASD through the GBA.

Synergistic Interaction Effect of Artemisia cina n-hexane Extract and Tagetes lucida Ethyl Acetate Extract on Haemonchus Contortus

PURPOSE

We analysed the possible synergistic activity among active extracts from Artemisia cina and Tagetes lucida combinations on Haemonchus contortus, a nematode parasitising sheep.

METHODS

The work was carried out in vitro on eggs and infective larvae (L3) of H. contortus. The results were analysed with SAS 9.1, applying the ANOVA and Tukey test, and the lethal concentration (LC) values LC50 and LC90 were determined with regression analysis, employing Proc Probit of SAS 9.1. Additionally, the lethal concentration (LC) was calculated with LC50 and LC90 to determine the synergistic effect.

RESULTS

The results demonstrated a high efficacy of the two plants studied on both nematode eggs and L3 larvae as well as of their combinations. The highest egg hatching inhibition was obtained with a 50/50 combination, and the best larvae mortality was obtained with 25% A. cina and 75% T. lucida at 10 mg/mL. Additionally, this combination showed a synergistic effect.

CONCLUSION

The two plant species studied here can be applied as natural anthelmintic alternatives due to their high bioactive effect and synergistic response.

Exploration of gut microbiome and inflammation: A review on key signalling pathways

The gut microbiome, a crucial component of the human system, is a diverse collection of microbes that belong to the gut of human beings as well as other animals. These microbial communities continue to coexist harmoniously with their host organisms and perform various functions that affect the host's general health. Each person's gut microbiota has a unique makeup. The gut microbiota is well acknowledged to have a part in the local as well as systemic inflammation that underlies a number of inflammatory disorders (e.g., atherosclerosis, diabetes mellitus, obesity, and inflammatory bowel disease).The gut microbiota's metabolic products, such as short-chain fatty acids (butyrate, propionate, and acetate) inhibit inflammation by preventing immune system cells like macrophages and neutrophils from producing pro-inflammatory factors, which are triggered by the structural elements of bacteria (like lipopolysaccharide). The review's primary goal is to provide comprehensive and compiled data regarding the contribution of gut microbiota to inflammation and the associated signalling pathways.

Fabrication and characterization of emulsion-based edible film containing cinnamon essential oil using chia seed mucilage

Chia seed mucilage (CSM) film incorporated with 2, 4, and 6 % (w/w) nanoemulsion of cinnamon essential oil (CSM-2, CSM-4, CSM-6) were developed, and their physicochemical, mechanical, antioxidant, and antimicrobial properties were determined. According to the results, cinnamon EO nanoemulsion (CEN) had droplet size 196.07 ± 1.39 nm with PDI 0.47 ± 0.04. Moreover, CSM film had higher water solubility (99.37 ± 0.05 %) and WVP (8.55 ± 1.10 g/kPa h m2) than reinforced CSM films with CENCEN. The lowest water solubility (98.02 ± 0.01 %) and WVP (3.75 ± 0.80 g/kPa h m2) was observed in CSM-6 film. Moreover, the addition of CEN improved the homogeneity and density of films and the smoothness of the surface, being observed by scanning electron microscopy (SEM) and atomic force microscopy (AFM). The Fourier transform infrared (FTIR) spectroscopy also confirmed the incorporation of CEN within the film matrix. The CSM films' antioxidant (DPPH radical scavenging power) and antimicrobial (against Escherichia coli and Staphylococcus aureus) properties of CSM films were notably enhanced with the inclusion of CEN in a dose-dependent manner. The mechanical (tensile strength and elongation at break) of CSM films also was affected by the addition of CEN, TS decreased, and EAB increased (p < 0.05). The lowest TS (20.63 ± 1.39 MPa) and highest EAB (3.36 ± 0.61 %) was observed in CSM-4 film. However, CSM film was relatively dark with low opacity, and adding CEN slightly increased lightness (L*) and yellowness (b*) parameters. The superior antioxidant and barrier characteristics of the CSM edible film incorporated with CEN make it a potential candidate for product packaging and shelf-life extension.

In vitro evaluation of the susceptibility of bacterial biofilms to hecogenin acetate

Biofilms are a bacterial resistance strategy through which microorganisms organize themselves in the form of a colony fixed to a surface that is protected by a polymer matrix. Infectious diseases that result in biofilm formation have been considered a relevant public health problem due to the potential to increase patient morbidity and mortality, in addition to increasing the burden on health services. Such pathologies are treated with the use of antimicrobial drugs, the indiscriminate use of which has contributed to the process of bacterial resistance, demanding the need to invest in new alternatives to combat them. Based on this, the present work aimed to evaluate the anti-biofilm formation and eradication capacity of Hecogenin Acetate, a steroidal sapogenin of natural origin with important antibacterial properties. For this, we used strains of Streptococcus mutans INCQS 00,446 (ATCC 25,175), Enterococcus faecalis INCQS 00,018 (ATCC 14,506), Staphylococcus epidermidis INCQS 00,016 (ATCC 12,228), Staphylococcus aureus ATCC 25,923, Pseudomonas aeruginosa ATCC 9027 and Escherichia coli ATCC 259,223. The formation, formation inhibition and treatment assays were carried out in microdilution plates and revealed using the crystal violet method. Readings were carried out using absorbance at wavelengths of 492 nm. All tests were performed in triplicate and statistical analyzes were performed using Graphpad Prism v.5.0 software. It was observed that the bacterial strains used have a relevant capacity for biofilm formation, with the Gram positive ones identified in the present study as the best former. In the results of the analyzes with bacterial biofilm, it was identified that Hecogenin Acetate had a relevant antibiofilm capacity, and could therefore serve as a basis for further research into the development of new antimicrobial drugs.

Mechanistic insights into the ameliorative effects of Xianglianhuazhuo formula on chronic atrophic gastritis through ferroptosis mediated by YY1/miR-320a/TFRC signal pathway

ETHNOPHARMACOLOGICAL RELEVANCE

Xianglianhuazhuo formula (XLHZ) has a potential therapeutic effect on chronic atrophic gastritis (CAG). However, the specific molecular mechanism remains unclear.

AIM OF THE STUDY

To evaluate the effect of XLHZ on CAG in vitro and in vivo and its potential mechanisms.

METHODS

A rat model of CAG was established using a composite modeling method, and the pathological changes and ultrastructure of gastric mucosa were observed. YY1/miR-320a/TFRC and ferroptosis-related molecules were detected. An MNNG-induced gastric epithelial cell model was established in vitro to evaluate the inhibitory effect of XLHZ on cell ferroptosis by observing cell proliferation, migration, invasion, apoptosis, and molecules related to ferroptosis. The specific mechanism of action of XLHZ in treating CAG was elucidated by silencing or overexpression of targets.

RESULTS

In vivo experiments showed that XLHZ could improve the pathological status and ultrastructure of gastric mucosa and inhibit ferroptosis by regulating the YY1/miR-320a/TFRC signaling pathway. The results in vitro demonstrated that transfection of miR-320a mimics inhibited cell proliferation, migration, and invasion while promoting cell apoptosis. MiR-320a targeted TFRC and inhibited ferroptosis. Overexpression of TFRC reversed the inhibitory effect of miR-320a overexpression on cell proliferation. The effect of XLHZ was consistent with that of miR-320a. YY1 targeted miR-320a, and its overexpression promoted ferroptosis.

CONCLUSION

XLHZ inhibited ferroptosis by regulating the YY1/miR-320a/TFRC signaling pathway, ultimately impeding the progression of CAG.

The Heterogeneity of Post-Menopausal Disease Risk: Could the Basis for Why Only Subsets of Females Are Affected Be Due to a Reversible Epigenetic Modification System Associated with Puberty, Menstrual Cycles, Pregnancy and Lactation, and, Ultimately, Menopause?

For much of human evolution, the average lifespan was <40 years, due in part to disease, infant mortality, predators, food insecurity, and, for females, complications of childbirth. Thus, for much of evolution, many females did not reach the age of menopause (45-50 years of age) and it is mainly in the past several hundred years that the lifespan has been extended to >75 years, primarily due to public health advances, medical interventions, antibiotics, and nutrition. Therefore, the underlying biological mechanisms responsible for disease risk following menopause must have evolved during the complex processes leading to Homo sapiens to serve functions in the pre-menopausal state. Furthermore, as a primary function for the survival of the species is effective reproduction, it is likely that most of the advantages of having such post-menopausal risks relate to reproduction and the ability to address environmental stresses. This opinion/perspective will be discussed in the context of how such post-menopausal risks could enhance reproduction, with improved survival of offspring, and perhaps why such risks are preserved. Not all post-menopausal females exhibit risk for this set of diseases, and those who do develop such diseases do not have all of the conditions. The diseases of the post-menopausal state do not operate as a unified complex, but as independent variables, with the potential for some overlap. The how and why there would be such heterogeneity if the risk factors serve essential functions during the reproductive years is also discussed and the concept of sets of reversible epigenetic changes associated with puberty, pregnancy, and lactation is offered to explain the observations regarding the distribution of post-menopausal conditions and their potential roles in reproduction. While the involvement of an epigenetic system with a dynamic "modification-demodification-remodification" paradigm contributing to disease risk is a hypothesis at this point, validation of it could lead to a better understanding of post-menopausal disease risk in the context of reproduction with commonalities may also lead to future improved interventions to control such risk after menopause.

Pholiotic acid promotes apoptosis in human metastatic melanoma cells

Mushrooms produce a great variety of secondary metabolites that can be successful in both prevention and treatment of various cancers. In particular, higher Basidiomycete mushrooms contain various types of biologically active low-molecular compounds in fruiting bodies with suggested anticarcinogenic effects. The polyamine analogue {(2R)-2-[(S)-3-hydroxy-3-methylglutaryloxy] putrescine dicinnamamide} indicated with the name pholiotic acid, isolated for the first time by us from the fruiting bodies of the Basidiomycete Pholiota spumosa (Fr.) Sing. (Strophariaceae), inhibited the viability of human prostate cancer cells, such as other polyamine synthetic analogues that have shown antitumor activity in several types of cancer, including melanoma. Melanoma is an aggressive skin cancer that can metastasize to other organs and presents a high resistance to conventional therapies. In light of these considerations, the present study was therefore designed to assess whether this putrescine derivative could inhibit the growth of human metastatic melanoma cell lines, M14 and A2058. The results obtained demonstrate that this natural compound, at 12.5-50 μM concentration, was able to reduce cell viability of both cancer cells inducing cell death by intrinsic apoptotic pathway that probably involves PTEN activity, inhibition of Hsp70 expression and reactive oxygen species production. On the other hand, the increased expression of enzymes involved in polyamine catabolism trigger apoptotic cell death leading to polyamine depletion and generation of reactive oxygen species as by-products. In conclusion, these findings, starting point for further investigation, implement available our data to support pholiotic acid as an attractive potential chemopreventive agent, and provide a basis for further research into the use of this polyamine derivative as potential anticancer agent for melanoma in combination with existing therapies to improve treatment efficacy and overcome the obstacle of drug resistance.

Apium extract alleviates indomethacin-induced gastric ulcers in rats via modulating the VEGF and IK-κB/NF-κB p65 signaling pathway: insights from in silico and in vivo investigations

BACKGROUND

Gastric ulcers represent a worldwide health problem, characterized by erosions that affect the mucous membrane of the stomach and may even reach the muscular layer, leading to serious complications. Numerous natural products have been assessed as anti-ulcerogenic agents, and have been considered as new approaches for treatment or prevention of gastric ulcers. The present research investigated the preventive benefits of Apium graveolens L. (Apiaceae), known as celery, seed extract towards indomethacin-induced ulceration of the stomach in rats.

METHODS

Metabolomic profiling, employing liquid chromatography coupled to high-resolution electrospray ionization mass spectrometry (LC-HR-ESI-MS), was implemented with the aim of investigating the chemical profile of the seeds. Histopathological analysis of gastric tissues, as well as assessment of numerous inflammatory cytokines and oxidative stress indicators, confirmed the in vivo evaluation.

RESULTS

The prior treatment with A. graveolens seed extract resulted in a substantial reduction in the ulcer index when compared to the indomethacin group, indicating an improvement in stomach mucosal injury. Moreover, the gastroprotective effect was demonstrated through examination of the oxidative stress biomarkers which was significantly attenuated upon pre-treatment with A. graveolens seed extract. Vascular endothelial growth factor (VEGF), a fundamental angiogenic factor that stimulates angiogenesis, was markedly inhibited by indomethacin. A. graveolens seed extract restored this diminished level of VEGF. The dramatic reductions in NF-κB protein levels indicate a considerable attenuation of the indomethacin-induced IKκB/NF-κB p65 signaling cascade. These activities were also correlated to the tentatively featured secondary metabolites including, phenolic acids, coumarins and flavonoids, previously evidenced to exert potent anti-inflammatory and antioxidant activities. According to our network pharmacology study, the identified metabolites annotated 379 unique genes, among which only 17 genes were related to gastric ulcer. The PTGS2, MMP2 and PTGS1 were the top annotated genes related to gastric ulcer. The top biological pathway was the VEGF signaling pathway.

CONCLUSION

A. graveolens seed extract possesses significant anti-ulcer activity, similar to famotidine, against gastric lesions induced by indomethacin in rats. It is worth highlighting that the extract overcomes the negative effects of conventional chemical anti-secretory drugs because it does not lower stomach acidity.

Green and environmentally friendly synthesis of silver nanoparticles with antibacterial properties from some medicinal plants

Recently there have been a variety of methods to synthesize silver nanoparticles, among which the biosynthesis method is more noticeable due to features like being eco-friendly, simple, and cost-efficient. The present study aims for the green synthesis of silver nanoparticles from the extract of the three plants A. wilhelmsi, M. chamomilla, and C. longa; moreover, it pledges to measure the antibacterial activity against some variants causing a skin rash. The morphology and size of the synthesized silver nanoparticles were evaluated by UV.vis, XRD, SEM, and FTIR analyses. Then results showed a color alteration from light yellow to dark brown and the formation of silver nanoparticles. The absorption peak with the wavelength of approximately 450 nm resulting from the Spectrophotometry analysis confirmed the synthesis of silver nanoparticles. The presence of strong and wide peaks in FTIR indicated the presence of OH groups. The SEM results showed that most synthesized nanoparticles had a spherical angular structure and their size was about 10 to 20 nm. The highest inhibition power was demonstrated by silver nanoparticles synthesized from the extract combined from all three species against Gram-positive bacteria Staphylococcus aureus and Staphylococcus epidermidis (23 mm) which had a performance far more powerful than the extract. Thus, it can be understood that the nanoparticles synthesized from these three species can act as potential environment-friendly alternatives to inhibit some variations causing skin disorders; an issue that calls for further clinical studies.