Compounds Quercetin Research Articles

Abatement by Alhagi maurorum of lead-induced nephrotoxicity in rats: emphasis on Nrf2/HO-1

BackgroundLead (Pb) is a heavy metal with extreme toxicity and numerous industrial uses. It produces nephrotoxicity with notable changes in renal architecture and function. The Alhagi maurorum (AM) belongs to the family Fabaceae and is native to the Middle East area. In the present study, the potential nephroprotective effects of AM in Pb-intoxicated rats were evaluated.ResultsAM methanolic extract was standardized in reference to its main phenolic compounds orientin, rutin, and quercetin. Acute oral toxicity studies indicated that the extract is safe for animals. Rats were allocated into five groups and treated for 28 days as follows: control, AM (200 mg/kg, orally), Pb (15 mg/kg, orally), Pb + AM (100 mg/kg), and Pb + AM (200 mg/kg). Pb administration markedly increased serum cystatin C, urea, creatinine levels, and urinary NAG. Pb also caused renal histopathological alterations. However, AM o-treatment ameliorated such pathological changes. In addition, AM treatment prevented Pb-induced accumulation of malondialdehyde (MDA), attenuated glutathione (GSH) depletion, and catalase (CAT) and superoxide dismutase (SOD) exhaustion. AM guarded against Pb-induced enhanced the protein expression of interleukin-6 (IL-6), tumor necrosis factor-alpha (TNF-α), cyclooxygenase-2 (COX-2), and nuclear factor-kappa B (NF-κB). Further, AM significantly prevented Pb-induced upregulation of mRNA levels of Bax and downregulation of Bcl-2. These effects were associated with increased levels of heme oxygenase-1 (HO-1) and nuclear factor erythroid 2-related factor 2 (Nrf2) in renal tissue.ConclusionAM guards against Pb-induced nephrotoxicity in rats that involve, at least partly, the antioxidant, anti-inflammatory, and anti-apoptotic activities as well as the modulation of HO-1 and Nrf2 expression.

Seasonal Phenolic Profile, Antioxidant, and Photoprotective Activities of Psidium guajava L. Leaves.

This study aimed to evaluate the phytochemicals from extracts of Psidium guajava L. leaves (P. guajava extract [PGE]) and its antioxidant and photoprotective effects. PGE showed constant production of total phenolics and maintained high antioxidant capacity across seasons and years. Liquid chromatography-mass spectrometry (LC-MS/MS) analysis revealed the phenolic compounds quercetin, catechin, gallic acid, epicatechin, vanillic acid, and syringic acid, as well as two new compounds, syringaldehyde and ferulic acid. The high sun protection factor (SPF) was observed in all seasons. The phytochemicals ferulic acid, syringic acid, and quercetin were correlated with cloudiness and humidity. Antioxidant activity was correlated with vanillic acid, ascorbic acid, flavonoids, and tannins, and SPF with temperature, antioxidant activity, flavonoids, vanillic acid, gallic acid, and catechin. The formulations containing UVA/UVB filters or not, plus aqueous autumn extract, showed an increase in SPF. Therefore, the results suggested that PGE has potential photoprotective and antioxidant agents for the production of new sunscreen formulations with environmental and health benefits.

Quantitative analysis of quercetin in tea mistletoe (Scurrula oortiana Dans.)

Indonesia has a variety of plants that are useful as medicine. One is the Tea Mistletoe plant (Scurrula oortiana Dans.). This plant contains flavonoid compounds that are effective as antioxidants, especially in the form of quercetin. Quercetin in the tea mistletoe plant can prevent cell damage caused by free radicals, where cells need this antioxidant to avoid the harmful effects of excessive reactive oxygen species (ROS) production and prevent damage to immune cells. This study aims to analyze the levels of quercetin in Tea Mistletoe extract using quantitative analysis methods such as thin-layer chromatography and UV-Vis spectrophotometry. Tea Mistletoe powder was extracted by maceration with 96% ethanol solvent and then concentrated using a rotary evaporator and water bath. The thick extract obtained was then tested for phytochemical screening and specific and non-specific parameters. Analysis of flavonoid quercetin compounds was carried out using a thin layer chromatography method using a mobile phase of a mixture of chloroform, ethyl acetate, and n-butanol with a ratio of 5:4:1 and a stationary phase of Silica Gel GF₂₅₄. Determination of flavonoid levels was carried out using UV-Vis spectrophotometry at a wavelength of 428 nm. The results of this study indicate that the Mistletoe Tea plant contains flavonoids, alkaloids, steroids, tannins, saponins, phenolics, and glycosides. All test parameters meet the specified requirements. The thin layer chromatography test showed the Rf value of the Mistletoe Tea extract of 0.78. The linearity test showed a correlation value (r) = 0.9988 with a total flavonoid compound content of 372.250 mg QE/g extract, or a percentage of 37.225%.

Zahabba Patch: Innovation of Gingival Mucoadhesion Patch Combination of Ginger (Zingiber Officinale) and Black Cubit (Nigella Sativa) as Gingivitis Treatment

Background The prevalence of periodontal disease in Indonesia reaches 74.1%. Treatment of gingivitis by administering NSAIDs has a side effect of gastritis. Anti-inflammatory and analgesic derived from natural ingredients are known to cause minimal side effects on the patient's body. The active compounds gingerol in ginger (Zingiber officinale) and quercetin in black cumin (Nigella sativa) are known to function as good anti-inflammatory and analgesic agents. Objectives This study aims to analyze the effectiveness of gingerol in ginger extract and qurcetin in black cumin as an anti-inflammatory and analgesic packaged in a mucoadhesion patch as a treatment for gingivitis. Material and Methods Preparations of gingerol and quercetin were obtained by biocomputation using the PyRx program, the Pymol program, the RCSB PDB website, the Lipinski rule of five page, the PDBSum website, and also the pkCSM website. Physicochemical, pharmacokinetic, toxicity, and molecular docking tests were carried out to determine the biocompatibility of the active ingredients used. Results In the physicochemical tests, the compounds glycerol and quercetin can penetrate somatic cell membranes, have good solubility in water, can dissolve easily in the blood, are easily distributed in the body, and can maintain their position and bond strength with the target macro protein. The results of the AMES toxicity, Hepatotoxicity and skin sensitization tests showed negative values for both gingerol and quercetin. In the molecular docking test, the gingerol and quercetin compounds have a tendency to form bonds with COX-1 compared to arachidonic acid without having to increase the dose so that they become competitors to the native ligand. Conclusion The active compounds gingerol in ginger extract (Zingiber officinale) and quercetin in black cumin extract (Nigella sativa) contained in Zahabba patch are good anti-inflammatory and analgesic by inhibiting the synthesis of pro-inflammatory cytokines such as PGI2, PGE2, and TXA2 by being competitive inhibitor of the enzyme phospholipase A2 against membrane lipids and the enzyme cyclooxygenase-1 (COX-1) against arachidonic acid.

Using network pharmacology analysis and molecular docking of quercetin compound for treatment of Alzheimer

Using network pharmacology analysis and molecular docking of quercetin compound for treatment of Alzheimer

Exploring the wound healing potential of Ixora coccinea and Rhododendron arboreum formulation: integrating experimental and computational approaches.

Wound healing is a complex biological process involving numerous cellular and molecular events. Ixora coccinea and Rhododendron arboreum flowers have been traditionally used for their medicinal properties, prompting an investigation into their combined effects on wound healing using both invitro and insilico approaches. Ixora and Rhododendron flowers were processed in a 1:1 ratio using an ethanolic solvent. Various concentrations of the extracts were applied to wounded mouse fibroblast cell monolayers (3T3-L1). Antioxidant potential was evaluated by DPPH and H2O2 assays, while anti-inflammatory effects were assessed using BSA and EA assays. Wound closure kinetics were monitored with image analysis software. Molecular docking studies examined interactions between active compounds and essential wound-healing proteins. The formulations inhibited ROS production at a low concentration (IC50∼1.38 μg/mL), indicating suitability for managing oxidative stress. The extracts also showed protein denaturation inhibition with an IC50 value of 14.5 μg/mL for BSA and 8.3 μg/mL for EA. In vitro, the combined extracts significantly enhanced wound closure compared to control groups, with higher concentrations (40 μg/mL) accelerating closure rates (99.66 %). Molecular docking revealed interactions between key compounds (Quercetin, Rutin) and essential wound healing proteins (MMP9, TGFβ1, IGFR), suggesting mechanisms underlying their therapeutic effects. In vitro and insilico findings suggest that Ixora and Rhododendron flower extracts promote wound closure and their interaction with key proteins in wound healing pathways, highlighting their potential therapeutic value.

Fabrication and Characterization of Agar- and Seaweed-Derived Biomembrane Films for Biomedical and Other Applications.

This study focused on seaweed-based biomembrane development. The physical, mechanical, thermal, and biological properties of the fabricated films with different combinations of materials, such as agar, chitosan, poly(vinyl) alcohol (PVA), and quercetin, were characterized. The surface morphology of the films was analyzed using SEM. The maximum tensile strength (53.11 N/mm2), elongation at break (3.42%), and Young's modulus (15.52) of the biomembrane were recorded for the agar + chitosan combination. FT-Raman analysis confirmed the functional groups shift between the biopolymer and plasticizer used in this study. TG-DSC analysis of the biomembranes revealed a Tg in the range of 92.80°C-115°C. The maximum antioxidant activity was reported for quercetin (58.62%), and the maximum antimicrobial activity was observed for the chitosan and quercetin compounds against E. coli. A minimum hemolysis of 0.95% was achieved for the combination of agar + quercetin (AQ), agar + PEG (APE), Gracilaria corticata extract + PVA + quercetin (GCPQ) and agar + chitosan (AC) biomembranes. The minimum cytotoxicity of the biomembrane was 62.51% and 63.87% for Gracilaria corticata extract + PVA + quercetin (GCPQ), and agar + PVA, respectively. The proposed biomembrane films were found to be suitable for biomedical and packaging applications.

Near-infrared spectrometry for rapid and real-time prediction of specific quality attributes in intact cactus pear fruits (Opuntia ficus-indica L.)

Cactus pear fruits are rich sources of nutritional (essential vitamins, amino acids and minerals) and antioxidant compounds (flavonoids, carotenes, betalains, ascorbic acid and quercetin). The fruit is cultivated for fresh markets and also serves as nutraceutical and functional food, finding application in various forms such as juice, jam, wine, syrup and in dairy products. However, short postharvest life and negative perception has contributed to its underutilization in the local context. Total titratable acidity (TTA) and total soluble solids (TSS) are among the desirable attributes used to assess postharvest quality of Cactus pears. A portable near-infrared spectrometer (NIRS) can non-destructively determine the internal quality of Cactus pears’ thus reducing postharvest losses. This study evaluated the potential of a handheld NIRS coupled with chemometrics of partial least square regression (PLSR) for rapid, non-destructive, and simultaneous determination of TTA and TSS in intact Cactus pear fruits. Cactus pears at different stages of maturity were sampled from Laikipia county, in Kenya, and immediately subjected to spectral data acquisition and wet-chemistry analyses. The PLSR was used to train and validate predictive models for the determination of TTA and TSS content in intact Cactus pears. The prediction model for TTA gave an R-squared (R2) of 0.73, root mean squared error of prediction (RMSEP) of 0.28% citric acid, and residual predictive deviation (RPD) of 1.97. Additionally, the TSS model resulted in R2 of 0.75, RMSEP of 1.60° Brix, and RPD of 2.06. Overall, these findings highlight the effectiveness of NIRS in non-destructive measurement of TTA and TSS levels in whole Cactus pears. However, with further refinement and optimization of these models, the full potential of this technique for swift and precise assessment of these parameters in whole Cactus pears can be realized. This would greatly benefit farmers and processors by reducing expenses associated with quality assessment and facilitating market entry of Cactus pear derived food products.

Quercetin Reduced and Stabilized Gold Nanoparticle/Al3+: A Rapid, Sensitive Optical Detection Nanoplatform for Fluoride Ion.

In this contribution, facile synthesis of gold nanoparticles (AuNPs) at ambient conditions is reported based on the use of the polyphenolic compound quercetin (QT) as the reducing and stabilizing agent at room temperature (RT). Under alkali-induced pH adjustment of QT solution and stirring conditions at RT, QT could quickly reduce gold salt (Au3+) into its nanoparticle form (Au0), resulting in the formation of a sparkling red color colloidal solution (AuNPs) with an absorption maximum at 520 nm. Further, Fourier transform infrared spectroscopy (FTIR) was employed to showcase the role of QT in the nanomaterial's synthesis process. The formed QT-AuNPs responded swiftly to Al3+ charging with color perturbation from red to grayish-purple, coupled with an absorption spectra red shift, owing to Al3+-induced aggregation of QT-AuNPs. However, when fluoride ion (F-) was pre-mixed with an optimized Al3+ concentration, reversed color changes from grayish-purple to red were observed with a blue shift in the absorption spectra. Simply put, F- formed a complex with Al3+, thus preventing Al3+-induced aggregation of QT-AuNPs. The analytical response A520/A650 was linear with F- concentration ranging from 25.0 to 250.0 µM and 250.0-600.0 µM, with a detection limit of 7.5 µM. The developed QT-AuNPs/Al3+ detection probe was selective to only F- charging, in comparison with other possible interfering anions. Real sample potentiality of the developed sensor was demonstrated on tap water samples, toothpaste, and fluoride-rich mouthwash, with reliable accuracy.

Integrating of In Silico and In Vitro Approaches to Determine Biological Activities of Abelmoschus esculentus’s Seeds

The purpose of this study was to examine the antioxidant, anti-urease, and anticholinesterase properties of extracts from plant seeds, as well as their toxicity on normal cells. In addition, the goal of this work was to use an in silico and in vitro method to evaluate the biological activity and mechanism of action of A. esculentus. DPPH (2,2-diphenyl-1-picrylhydrazyl), CUPRAC (Cupric ion reducing antioxidant capacity), and FRAP (Ferric reducing antioxidant power) techniques were used to examine the antioxidant properties of plant extracts. The extracts' anticholinesterase, anti-urease, and cytotoxic activity were determined using the Ellman, Indophenol, and MTT techniques, respectively. Computer algorithms were used to estimate ADMET and molecular docking techniques for compounds in plant. When the antioxidant activity results were examined, it was determined that water (IC50:0.313 mg/mL) and ethanol (IC50:0.314 mg/mL) extract showed DPPH activities close to each other. It was determined that the water (7.780mM FeSO4/mg extract, 1.106 mM troloxE/mg extract) extract showed higher activity than the ethanol (3.420 mM FeSO4/mg extract, 0.343 mM troloxE/mg extract) extract in FRAP and CUPRAC experiments. Considering the enzyme inhibition results, it was determined that the water extract showed the highest anti-urease activity, while the ethanol extract showed the highest anticholinesterase activity. It was also determined that both extracts had no toxic effect on normal cell lines (L-929). Based on pkCSM values, procyanidin B1 and procyanidin B2 compounds have a low volume of distribution, whereas rutin and quercetin compounds have a high volume of distribution (VDss). Not all compounds were predicted to have mutagenic and hepatotoxicity effects. In terms of score and ligand efficiency, procyanidin B1, procyanidin B2, quercetin, and rutin compounds appear to be superior to the reference. The chemicals quercetin and procyanidin B2 are thought to be key players in the pathophysiology of oxidative stress. In this study, the fact that the seeds’ extracts have biological activity and have no toxic effects on normal cell lines suggests that the seeds can be used medicinally and nutritionally in the future.

Effect of multispecies swards on ruminal fermentation, methane emission and potential for climate care cattle farming- an in vitro study

Greenhouse gas (GHG) emissions from livestock ruminants, particularly methane (CH4), nitrous oxide (N2O), and indirectly ammonia (NH3) significantly contributes to climate change and global warming. Conventional monoculture swards for cattle feeding, such as perennial ryegrass or Italian ryegrass, usually require substantial fertilizer inputs. Such management elevates soil mineral nitrogen levels, resulting in GHG emissions and potential water contamination. Mitigating the environmental footprint of these farming practices requires sustainable alternative feeding strategies for cattle production. Multispecies grassland swards (grass + legumes or legumes + herbs) represent a promising alternative to monoculture grassland swards for cattle nutrition due to their reduced nitrogen requirements, excellent herbage yield, and polyphenolic compounds (tannins, formononetin, luteolin, quercetin, and acteoside) which may have positive effects on animals. This study investigated the effects of selected multispecies grassland swards (plant blends) on in vitro ruminal fermentation and DM digestibility. Three experimental blends of plants cultivated without fertilizers were utilized: 1) perennial ryegrass (PRG) + red clover (RC), 2) chicory (C) + red clover (RC), and 3) Tonic plantain (PLA) + red clover (RC). The control blend included perennial ryegrass (PRG), and red clover (RC) cultivated with fertilizer. The in vitro trial showed a reduction in CH4 production and ruminal NH3 concentration (by 14.7% and 28.8%, respectively; p<0.01) in the PLA+RC blend compared to the control. This plant blend also increased propionate concentration (p<0.05) and reduced acetate and butyrate concentrations and the acetate-propionate ratio (p<0.01). Additionally, the total protozoal and methanogen counts were mostly reduced by the PLA+RC blend (p<0.01) among all blends investigated. In conclusion, the Tonic plantain and red clover blend (PLA+RC) cultivated without fertilizers have the potential to be utilized as a sustainable alternative feed source for climate-friendly cattle production, aligning with the aims of the European Climate Care Cattle Farming project.

Impact of postharvest calcium chloride treatments on decay rate and physicochemical quality properties in strawberry fruit

BackgroundPost-harvest losses cause significant product losses in the world, which leads to food waste. Therefore, it is of great importance for people to have access to sufficient amounts of products by increasing the storage period of fruits with applications such as post-harvest calcium chloride (CaCl2). In this study, the effect of calcium chloride (CaCl2) on physical quality parameters and bioactive contents of stored strawberry fruit (Albion cv.) was investigated. Accordingly, strawberries were treated with 2%, 4% and 6% CaCl2 before storage and stored for 15 days (0 ± 0.5 °C and 90 ± 5% RH). Analyses and measurements were conducted every 5 days during the storage period.Weight loss, decay rate, soluble solids content (SSC), acidity, pH, respiration rate, organic acids (malic, citric, ascorbic, fumaric, oxalic, succinic and tartaric) and phenolic compounds (catechin, chlorogenic, ferulic, gallic, o-coumaric, p-coumaric, protocatechuic, quercetin, rutin and syringic) were analyzed as quality parameters during storage.ResultsIn the study, in general, the best values were observed in 6% CaCl2-treated fruits in terms of weight loss, SSC, TA, decay and respiration rates, although they varied according to different storage periods. Similarly, in terms of phenolic compounds, organic acids and vitamin C, 6% CaCl2-treated fruits had significantly better prevention of quality losses. In addition, the most common phenolic compound of strawberry fruits was gallic acid, followed by chlorogenic acid and catechin, respectively. On the other hand, the predominant organic acid observed in the fruits was malic acid, followed by citric acid, succinic acid and oxalic acid, respectively.ConclusionsIn this study, it was observed that CaCl2 applications more effectively prevented weight loss and decay rate by reducing the respiration rate compared to the control group at the end of the storage period (15th day). It was concluded that, particularly, the 6% CaCl2 dose can be used as an important treatment to extend storage life by preserving fruit quality and biochemical changes.

Exploring the Anti-Diabetic Potential of &lt;i&gt;Cichorium intybus&lt;/i&gt; through Integrated Network Pharmacology Analysis and Molecular Docking Validation

Background: The major global health concern known as Type 2 Diabetes Mellitus (T2DM) ischaracterized by increased blood sugar level and insulin resistance. It is a common and complicated metabolic illness that needs to be understood from many angles in order to be predicted and treated effectively. Aim: Therefore, in his study, we aim to reveal the accurate and in-depth roots to predict the progression of diabetes and its management. Methods: A workable compound-target-pathway network pharmacology model and molecular docking studies were created by combining compound screening and target prediction. This model enabled researchers to systematically anticipate potential compounds and the mechanisms of Cichorium intybus anti-diabetic actions. Results: The results of the network pharmacology study were subsequently verified by using molecular docking, which effectively identified several active compounds of C. intybus and several targets that support anti-diabetes. For analytical purposes, four primary active chemicals are considered here: myricetin, cyanidin, quercitrin, and chicoric acid. These compounds act on targets such as alpha-amylase (1B2Y) and alpha-glucosidase (3W37). Here network pharmacology is used to build an interactive, complete network of genes relevant to diabetes, proteins, and pathways then validation is done through docking. Docking score of all 5 active compounds for both the targets alpha-glucosidase (PDB:3W37) and alpha-amylase (PDB:1B2Y) are considered. So, compound quercetin and cyanidin with both targets show the strongest binding affinities and interactions. Conclusion: Thus, this research successfully concludes the prediction of the active chemicals and targets of C. intybus for the treatment of diabetes. It offers fresh perspectives on the pharmacological and molecular foundations of C. intybus.

Anti- psoriatic effect and phytochemical evaluation of Iraqi Scabiosa palaestina ethyl acetate extract

The purpose of this study was to confirm the antipsoriasis activity of Scabiosa palaestina (S. palaestina) ariel component extract and identify the active compound(s) responsible for this activity using a developed RP-HPLC technology. The active ethyl acetate extract of S. palaestina was extracted and fractionated by the hot continuous Soxhlet apparatus method. Psoriasis was induced in experimental animals after 4 days of imiquimod (IMQ) cream application on dorsal skin rats of 3 treated groups (6 rats for each) and the normal group (6 rats) left without treatment. Two of the psoriatic-induced groups were treated with ethyl acetate (EA) extract or methotrexate (MTX) for 12 days, starting from day 4 of the IMQ application. Assessment of psoriatic lesions was done during the experiment, depending on the psoriasis area severity index (PASI). At the end of the study (day 15), animals were sacrificed and 2 skin specimens were collected for histopathological examination and cytokine measurement. Compared with the positive control group, ethyl acetate extract shows significant improvement in PASI (p-value &lt; 0.05) and histopathological changes exerted by IMQ. On the other hand, no significant reduction has been seen in the psoriatic and angiogenic mediator (IL-17 and VEGF) with a P-value &gt; 0.05 compared with the positive control group, which may be attributed to other cytokines that could be affected by the ethyl acetate extract of S. palaestina. These results suggest that the antipsoriasis properties of ethyl acetate extract may possibly be due to the presence of flavonoid compounds (luteolin, apigenin, quercetin, vitexin and kaempferol).

Potential of Quercetin Compound from Guava Leaves (Psidium guajava L.) as a Inhibitor COVID-19

Potential of Quercetin Compound from Guava Leaves (Psidium guajava L.) as a Inhibitor COVID-19

Study on the effects of endogenous polyphenols on the structure, physicochemical properties and in vitro digestive characteristics of Euryales Semen starch based on multi-spectroscopies, enzyme kinetics, molecular docking and molecular dynamics simulation

Euryales Semen (ES) is a highly nutritious food with low digestibility, which is closely associated with its endogenous phenolic compounds. In this study, five phenolic compounds (naringenin, isoquercitrin, gallic acid, epicatechin and quercetin) with high concentrations in ES were selected to prepare starch-polyphenol complexes. Subsequently, the effects of endogenous polyphenols on the structure, physicochemical properties and digestion characteristics of ES starch were studied using multiple techniques. The addition of phenolic compounds markedly reduced the in vitro digestibility, swelling power, gelatinization enthalpy, while increased the solubility of ES starch. Fourier-transform infrared spectroscopy and X-ray diffraction analysis showed that phenolic compounds interacted with the starch through non-covalent bonds. Five phenolic compounds inhibited α-amylase activity through a mixed competitive inhibition mechanism, with the inhibition potency ranked as follows: quercetin > epicatechin > gallic acid > isoquercitrin > naringenin. The spectroscopic analysis and molecular dynamics simulations confirmed that five phenolic compounds interacted with the amino acid residues of α-amylase through hydrogen bonding and hydrophobic interactions, caused α-amylase static fluorescence quenching, and altered its conformation and microenvironment. This study provides a better understanding of the interaction mechanisms between ES starch and polyphenols, and supports the development of ES as a food that lowers sugar levels.

Meta-analysis of proteomics data from osteoblasts, bone, and blood: Insights into druggable targets, active factors, and potential biomarkers for bone biomaterial design

Non-healing bone defects are a pressing public health concern accounting for one main cause for decreased life expectancy and quality. An aging population accompanied with increasing incidence of comorbidities, foreshadows a worsening of this socio-economic problem. Conventional treatments for non-healing bone defects prove ineffective for 5%–10% of fractures. Those challenges not only increase the patient’s burden but also complicate medical intervention, underscoring the need for more effective treatment strategies and identification of patients at risk before treatment selection. To address this, our proteomic meta-analysis aims to identify universally affected proteins and functions in the context of bone regeneration that can be utilized as novel bioactive biomaterial functionalizations, drug targets or therapeutics as well as analytical endpoints, or biomarkers in implant design and testing, respectively. We compiled 29 proteomic studies covering cellular models, extracellular vesicles, extracellular matrix, bone tissue, and liquid-biopsies to address different tissue hierarchies and species. An innovative, integrated framework consisting of data harmonization, candidate protein selection, network construction, and functional enrichment as well as drug repurposing and protein scoring metrics was developed. To make this framework widely applicable to other research questions, we have published a detailed tutorial of our meta-analysis process. We identified 51 proteins that are potentially important for bone healing. This includes well-known ECM components such as collagens, fibronectin and periostin, and proteins less explored in bone biology like YWHAE, HSPG2, CCN1, HTRA1, IGFBP7, LGALS1, TGFBI, C3, SERPINA1, and ANXA1 that might be utilized in future bone biomaterial development. Furthermore, we discovered the compounds trifluoperazine, phenethyl isothiocyanate, quercetin, and artenimol, which target key proteins such as S100A4, YWHAZ, MMP2, and TPM4 providing the option to manipulate undesired processes in bone regeneration. This may open new ways for treatment options to face the increasing socio-economic pressure of non-healing bone defects.

Review Article : The Effect of Quercetin Compounds on Type II Diabetes Mellitus

The immune system of the body targets the insulin-producing pancreatic cells, which results in diabetes mellitus. Synthesized antidiabetic drugs cause side effects of liver and kidney damage. Quercetin are known to have the same mechanism as synthetic antidiabetic drugs, so it can be an alternative treatment for diabetes. This article is a review with a literature search using PubMed, MDPI and Google Scholar. Quercetin activate AMPK which affects the decrease in blood glucose levels, protect cell damage due to free radicals so as to prevent a decrease in insulin levels and repair tissue damage due to hyperglycemia. Quercetin plays a role in reducing the risk of Type II DM complications. Quercetin compounds affect Type II Diabetes Mellitus with various mechanisms.

Bioactivity-guided purification and characterization of antioxidant, anti-gout and anti-diabetic polyphenols from Panchkuta: A traditional food combination of (semi) arid regions

Desert ecosystems have thrived in part because of the contribution of local traditions, along with conventional knowledge passed down through generations. Panchkuta, a combination of five plants, including Prosopis cineraria, Cordia dichotoma, Capparis decidua, Acacia senegal, and Mangifera indica, is a classic example of ethnic desert food and how communities utilize existing food resources to ensure nutritional security. In this study, we determined the total phenolic content, total flavonoid content, antioxidant, anti-gout, and anti-diabetic activities of crude and purified (using Amberlite XAD7HP and Sephadex LH-20) fractions of Panchkuta. Further, the phenolic compounds (quercetin, tiliroside, myricetin-3-O-galactoside, and others) responsible for these activities were identified by analytical techniques, including TLC, LC-MS, and HR-MS. The purified fraction showing maximum antioxidant activity in DPPH assay (Fraction 16, IC50–156.65 ± 12.6 μg/ml) was validated for its cytoprotective and anti-lipid peroxidative effects in the in vitro cell culture system (murine fibroblast cells). Fraction 9 showed the maximum anti-gout activity in xanthine oxidase assay (IC50- 80.59 ± 9.89 μg/ml) and fraction 11 showed the maximum anti-diabetic activity in α-amylase assay (IC50 of 101.54 ± 14.7 μg/ml). The study reinforces the understanding of traditional knowledge, relevance to One Health, and authenticates the potential medicinal value of Panchkuta through scientific validation.

DNA profiling, nutritional value and phytochemical investigation of Cissus rotundifolia Lam. growing in Yemen

Cissus rotundifolia Lam. (Vitaceae) is a wild plant that is commonly used as food and medicine. There are limited studies on the phytochemical composition of this plant. So, this study aims to investigate C. rotundifolia growing in Yemen phytochemically. HPLC analysis of C. rotundifolia aerial parts led to the identification and quantification of four compounds (isoorientin, quercetrin, quercetin, and linarin), among which isoorientin and quercetrin were the major. Proximate analysis showed high fibre content and low moisture content, whereas the nutritional values showed a high carbohydrate content which gave rise to higher nutritional value (266.39 Kcal.). Potassium, calcium, iron, magnesium, and vitamin E were present in high concentrations. Investigation of the methylene chloride and n-butanol fractions lead to the isolation of seven compounds: β-sitosterol, magnificol, β-sitosterol-glucoside, quercetin, quercetrin, isoorientin, and linarin. This is the first report on isolating these compounds from the investigated plant.