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Curcuminoids are naturally occurring phytocompound extracted from the turmeric rhizome Curcuma longa, a member of the ginger (Zingiberaceae) family. Through the development of a trademark product called Bio-Curcumin, this study seeks to increase the bioavailability and absorption of regular marketed curcumin by 95%. This finding has important implications for the academic and scientific community. The pharmacokinetic study of CurcuminAura™ and its innovation of biocurcuminoids is detailed in detail. Innovation of BioCurcuminoids and its Pharmacokinetic Study of CurcuminAura™ with regular curcuminoids is significantly described which is the need of the hour. This enhanced sunflower lecithin is an effective ingredient in the trademark product CurcuminAuraTM, which was created by Bio-Med Ingredients Pvt.Ltd. Its potency in the market can be increased by lecithin's capacity to efficiently encapsulate active substances, improve bioavailability, and increase absorption. Regular curcumin's weak solubility and poor absorption in its free form. Regular Curcumin due to its poor solubility and poor absorption in the free form in the gastrointestinal tract and its rapid biotransformation to inactive metabolites can greatly limit its utility as a health-promoting agent and dietary supplement. Hence to make it more readily available in the body. CurcuminovaTM is developed will enhance the properties of Curcumin making it more potent in the market. The Evaluation of the Comparative Pharmacokinetic Study of CurcuminAuraTM with Marketed Curcumin 95.0% was carried out through pre-clinical investigations in Sprague Dawley Rats via Oral Route which is the aim of this study with two groups in the study design, with four rats of each sex. Oral administration of CurcuminAuraTM and Curcumin 95.0% was administered to rats in the G1 and G3 groups, respectively. A dosage volume of 10 milliliters per kilogram of body weight was maintained for the oral route. After Dosage, under isofluorane,the blood samples were taken from the retroorbital sinuses after the dose was administered under varying periods of anaesthesia. Animals were split up into two sets for each group, and blood samples were taken at 30-, 2-, and 4-hour intervals. Samples were taken for analysis after being kept at -800C. Designed to increase the bioavailability of curcuminoids, CurcuminAuraTM is standardized to 60.9% total curcuminoids by HPLC, as opposed to marked conventional curcumin 95%. This has been confirmed by HPLC analysis. According to comparison studies, CurcuminAuraTM has a bioavailability that is 3.8 times greater than the reference standard. Additionally, in this study it is shown that the maximum absorption happens in the timeline 3 hrs after feeding the drug.

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Curcumin is a phenolic compound of turmeric with remarkable pharmacological properties. However, curcumin’s inherent poor water solubility, permeability, and instability in the gastrointestinal tract hinder its therapeutic use. Herein, curcumin-loaded solid self-micro- and nanoemulsifying drug delivery systems (C-SSMEDDS and C-SSNEDDS) were developed using Neusilin®UFL2 as a solid carrier. All developed formulations significantly showed improvement in curcumin water solubility, >100-fold as compared to the free curcumin. In both the simulated stomach (pH 1.2) and intestinal (pH 6.8) conditions, C-SSMEDDS and C-SSNEDDS enhanced the dissolution profiles of curcumin with 60%–70% release within 5 minutes and possessed an average droplet diameter of ~100 and ~150 nm, correspondingly. Moreover, permeation studies in the Caco-2 cell monolayer revealed that both formulations provided significantly greater cellular accumulation and absorption compared with the free curcumin. Finally, the C-SSMEDDS and C-SSNEDDS were physicochemically stable for at least 1 year at ambient temperature (25°C ± 0.5°C). In summary, the findings indicated that C-SSMEDDS and C-SSNEDDS are potential strategies for improving curcumin oral bioavailability.

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The emergence of drug resistance can lead to increased mortality and morbidity as treatment efficacy declines, and there is an urgent need to explore novel antibacterial compounds with enhanced effectiveness against drugresistant bacteria, particularly resistant biofilms. Curcumin, with its antimicrobial activity, can be a potential safe agent; however, studies on its efficacy against resistant biofilm are limited. This study, therefore, aims to explore the potential of curcumin and/or its novel derivatives against a spectrum of resistant biofilm-related pathogens, including bacteria, fungi, and human pathogens. Another study objective is to investigate the effectiveness of the high-yielding Lakadong turmeric (LKD)-derived curcumin for its antibacterial effects and the ability to inhibit biofilm formation in Gram-positive and Gram-negative bacteria using in-vitro assays. A molecular docking study was used to select the most potential binding interaction between the selected protein structure and ligand molecule for the potential efficacy of curcumin against resistant biofilms. Lakadong-derived curcumin-loaded nano gels (LKD-Cur Nanogel) were prepared and tested for antibacterial (zone-inhibition) and biofilm formation (scanning confocal microscope) activity against Staphylococcus aureus and Pseudomonas aeruginosa. Furthermore, Curcumin derivatives were studied in-silico for potential effectiveness against a spectrum of resistant biofilms. The in-silico results showed that curcumin and/or its novel derivatives exhibited high selectivity toward a range of targeted proteins compared to curcumin. Moreover, LKD-Cur Nanogel exhibited significant anti-bacterial activity with an increased mean zone of inhibition compared to positive control. The biofilm formation assay illustrated that LKD-Cur Nanogel effectively disrupted established bacterial biofilms (both for P. aeruginosa and S. aureus) grown on microtiter plates at a concentration of 1,000 µg/ml compared to the control. Therefore, it can be concluded that curcumin and/or its newly modified derivatives could hold promising antibacterial activity targeting diverse biofilm-associated pathogens based on the in-silico and in-vitro study. Moreover, it can be concluded that LKD-derived curcumin nanogels have good antibacterial and antibiofilm efficacy.

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Background: Oral Submucous Fibrosis, OSF is an inflammatory mucosal disorder prevalent in areca nut chewing belts of the world. Although various treatments are available for its management, none provide complete res- olution.Curcumin, an indigenous product, improves burning sensation, mouth opening along with other clinical signs of OSF and is potentially viable therapeutic option for its management. Objectives: To assess the available evidence for employing curcumin in improving symptoms in patients with OSF. Methods: Systematic search was carried out in e-databases from January 2010 until July 2023 to identify relevant clinical trials comparing curcumin to active and/or nonactive controls (placebo) for the management of OSF. Results: A total of 20 studies were used for qualitative analysis out of which 11 studies were considered for quantitative synthesis.Curcumin was found to be highly effective in alleviating pain/burning sensation, improving mouth opening (MO), cheek flexibility, tongue protrusion and induces positive histological changes in patients with OSF.The standardized mean difference in mouth opening between both the Curcumin and Multi- vitamin group showed a statistically significant difference favouring the Curcumin group (SMD, 0.37, 95% CI = 0.18–0.56, p - 0.0001, I2- 0%). Conclusion: Statistically curcumin was noted to be as effective as Aloe vera, lycopene and steroids in relieving symptoms of OSF in stages 1 and 2 and improving MO. It is seen to improve histopathological picture of lesions thereby suggesting its active role in preventing malignant transformation. Its found to be more effective than multivitamins in improving mouth opening of patients in OSF.

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Ayurveda is the traditional medicine system of India, and has been in practice for millennia. It is a traditional approach that uses 1000’s of different plant preparations in various combinations for treatment of human ail- ments, including cancer. Ethnopharmacological and phytochemical analyses are now elucidating the bioactive constituents of the different plant species and herbal formulations, including ashwagandha, curcumin, guduchi, triphala, and others. To provide an overview of: 1) the ethnopharmacology of Ayurveda and several of its most important plant species and formulations, including pharmacological and molecular mechanisms of its anti-cancer effects; 2) review the literature applying Ayurvedic herbs and formulations to brain tumors. A detailed PubMed search was performed that included publications involving Ayurveda, cancer, ethno- pharmacology, phytochemical analysis, molecular analysis, and brain tumors. In recent decades, significant research has begun to elucidate the bioactive compounds of ashwagandha, tumeric, guduchi, and triphala, such as withaferin A, withanolides, curcumin, palmatine, and many others. These compounds and extracts are now being applied to brain tumor cells in vitro and in animal models, with positive signs of anti-cancer activity including reduced cell growth, increased apoptosis, cell cycle arrest, increased dif- ferentiation, and inhibition of important internal signal transduction pathways. Several Ayurvedic herbs (ashwagandha, curcumin) have bioactive compounds with significant anti-cancer activity, and are effective in early pre-clinical testing against brain tumor cells in vitro and in animal models. Further pre-clinical testing is warranted, along with advancement into phase I and phase II clinical trials of patients with glioblastoma and other brain tumors.

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Many nanoscale drug delivery systems have been evaluated for their excellent properties, such as carbon nanotubes; however, due to their hydrophobic nature, surface modification or functionalization is the major step to prepare a biocompatible and well-dispersed multiwalled carbon nanotubes (MWCNTs) in biological fluids. This study aims to noncovalently functionalize MWCNT with chitosan to deliver curcumin to liver cancer cell lines and to investigate their in vitro cell cytotoxicity and antioxidant activity. The conjugation between chitosan, MWCNT, and curcumin was confirmed using Fourier transform infrared spectroscopy, Brunauer–Emmett–Teller surface area, pore size analysis, scanning electron microscopy, and thermogravimetric analysis. It was found that curcumin-chitosanMWCNT had the highest entrapment efficiency of 99.1%. The average surface area of curcumin-chitosan-MWCNT was 52.73 m2 /g, which showed more than 80% antioxidant activity for all used concentrations using 2,2-Diphenyl-1- picrylhydrazyl and 2,2? azinobis, 3-ethylbenzothiazoline-6-sulphonic acid methods. The IC 50 of curcumin-chitosanMWCNT used on the Hep G2 liver cell line was 43.62 µg/ml, while it was 227.6 µg/ml when used on fibroblast. In conclusion, the combination of curcumin, chitosan, and MWCNT showed a considerable reduction in cancer cell viability, and curcumin-chitosan-MWCNT can be proposed as a biocompatible carrier for liver cancer treatment.

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The demand for natural and healthier food products has increased dramatically in recent years due to growing consumer awareness of the impact food has on health as well as evidence of adverse effects from various ingredients, including some additives. This study evaluates the extraction method, solvent effects, precipitation, identification, purification, and lycopene, carotene, and curcumin content from turmeric, carrot, and tomato. Along-side, tomato, carrot, and turmeric samples were subjected to two different extraction and purification processes: solvent extraction for lycopene and carotene, and alkalization for curcumin. The samples were extracted and purified at room temperature (30篊) and chilled (4篊) for a period of three weeks. Tomato extracts had lycopene contents ranging from 0.0153 to 0.0362 mg/100g. obtained carotene content, which was then extracted using a solvent in the range of 61.43 to 81.72 mg/100g. The alkalization process produced a curcumin concentration of 91.17 to 110.41 mg/100g. Comparing the ethyl acetate extraction technique to the anti-solvent method, a greater amount of lycopene (red) and carotene (orange) precipitation was obtained. The maximum amount of curcumin precipitation obtained in lower pH solution. Lower pH is important to maintain the stability of curcumin precipitation. The experience of this research work suggested that lycopene from tomatoes, carotene from carrots, and curcumin from turmeric might be an excellent source to meet the increasing need for natural colorants.

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Aims: Turmeric, with its active component curcumin, has garnered global attention for its medicinal benefits, including anti-inflammatory and antioxidant properties. This study aimed to analyse turmeric powder obtained from the Greater Accra Metropolis for nutrients and contaminants. Study Design: Experimental. Place and Duration of Study: Entrance Pharmaceuticals, Accra for 6 months. Methodology: 22 samples from 10 different processing sites and open markets were tested using physical and chemical methods. HPLC identified curcumin, ascorbic acid, riboflavin, thiamine, and pyridoxine levels. An independent t-test was done to compare concentrations of these nutrients in the powdered turmeric samples from the two sources. Results: Assessment showed no yellow lead salts but 9.1% were adulterated with chalk, and 91% contained metanil yellow. Curcumin (2014.95 vs. 567.79), riboflavin (21.60 vs. 1.75), thiamine (14.75 vs. 0.65 mg/mL), pyridoxine (9.35 vs. 0.65 mg/mL), and ascorbic acid (0.00 vs. 101.60 mg/mL) were significantly higher (p<0.05) in processed samples than open market ones. Samples without adulterants had higher curcumin and micronutrient levels. Conclusion: Strengthening monitoring programs is crucial to tackling food adulteration concerns.

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Osteoarthritis (OA) is a multifaceted joint disorder affecting various structures, including articular cartilage, peri-articular bone, synovial joint lining, and connective tissues. This degenerative condition manifests as joint pain, stiffness, reduced mobility, and functional decline, impacting both dogs and humans globally. Risk factors include breed predispositions, joint diseases, higher body weight, and age. The current clinical approaches aim at symptom management and disease progression delay, with limited curative methods available. Nanoparticle (NPs)-based drug delivery systems, particularly curcumin liposomal formulations, show promise in OA treatment. Liposomes, lipid-based NPs, provide targeted drug distribution, extended-release, and enhanced retention in affected joints. Curcumin, a tetraterpenoid, exhibits anti-inflammatory, and antioxidant properties. Despite its efficacy, poor oral bioavailability led to the development of curcumin NPs to enhance therapeutic impact. Intra-articular administration of curcumin, especially in the form of curcumin monoglucuronide, addresses challenges associated with low hydrophilicity, demonstrating effectiveness in suppressing cartilage degeneration in OA. While non-encapsulated curcumin exhibits efficacy, its limited bioavailability prompts innovative approaches like curcumin NPs. The combination of curcumin with non-steroidal anti-inflammatory drugs or chondroprotective agents enhances anti-inflammatory effects, minimizing adverse reactions. Studies support curcumin’s multifaceted therapeutic potential, promoting chondrogenic differentiation and inhibiting inflammatory mediators. This comprehensive review provides insights into canine OA treatment, emphasizing curcumin liposomal formulations as a promising avenue for informed decision-making in veterinary practice.

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Renewable energy is the one of the most resourceful sources of energy for the future. The aim of this study is to harness and store solar energy through natural dye Curcumin-Arabinose-Tween-80 photogalvanic cell system. This cell based on photo-sensitizer natural dye Curcumin, surfactant Tween 80, reductant Arabinose in alkaline medium has shown encouraging and very impressive improvement in solar energy conversion and storage. This combination of chemicals has shown harnessing of 105.45?W maximum powers with a storage capacity of 120 min as half change time from the 10.4 mWcm?2 artificial and low illumination intensity. In this study, the observed optimum cell performance in terms of the maximum photopotential, maximum photocurrent, and short-circuit current is 1044 mV, 860 ?A, and 836 ?A, respectively.

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ABSTRACT We present a case of a 69-year-old man who presented for routine check-up and was incidentally found to have kidney failure with an initially unrevealing history and bland urinary sediment. He was diagnosed with oxalate nephropathy in the setting of chronic turmeric supplementation and chronic antibiotic therapy with associated diarrhea. Our case provides several key insights into oxalate nephropathy. First, the diagnosis requires a high index of clinical suspicion. It is uncommonly suspected clinically unless there is an obvious clue in the history such as Roux-en-Y gastric bypass or ethylene glycol poisoning. Diagnosis can be confirmed by histopathologic findings and corroborated by serum levels of oxalate and 24-hour urinary excretion. Second, the diagnosis can often be missed by the pathologist because of the characteristics of the crystals unless the renal pathologist has made it a rule to examine routinely all H&E sections under polarized light. This must be done on H&E, as the other stains dissolve the crystals. Third, one oxalate crystal in a routine needle biopsy is considered pathologic and potentially contributing to the AKI or to the CKD in an important way. Fourth, secondary oxalosis can be largely mitigated or prevented in many cases, especially iatrogenic cases. This can come through the surgeon or the gastroenterologist providing proper instructions to patients on an oxalate-restricted diet or other specific dietary measures. Lastly, this case highlights the success that results from cooperation and communication between the pathologist and the treating physician.

RESUMO Relatamos o caso de um homem de 69 anos que se apresentou para exame de rotina e descobriu-se incidentalmente que ele tinha insuficiência renal, com histórico inicialmente não revelador e sedimento urinário brando. Ele foi diagnosticado com nefropatia por oxalato no contexto de suplementação crônica de cúrcuma e antibioticoterapia crônica com diarreia associada. Nosso caso fornece diversas sugestões importantes sobre nefropatia por oxalato. Primeiro, o diagnóstico requer elevado índice de suspeita clínica. A suspeita clínica é incomum, a menos que haja evidência óbvia no histórico, como bypass gástrico em Y de Roux ou envenenamento por etilenoglicol. O diagnóstico pode ser confirmado por achados histopatológicos e corroborado por níveis séricos de oxalato e excreção urinária de 24 horas. Segundo, o diagnóstico pode passar despercebido pelo patologista devido às características dos cristais, a menos que o patologista renal estabeleça como regra examinar rotineiramente todas as seções coradas com H&E sob luz polarizada. Isso deve ser feito com H&E, pois, outras colorações dissolvem os cristais. Em terceiro lugar, um cristal de oxalato em biópsia por agulha de rotina é considerado patológico, contribuindo potencialmente para LRA ou para DRC de maneira significativa. Em quarto lugar, a oxalose secundária pode ser amplamente mitigada ou prevenida em muitos casos, especialmente casos iatrogênicos. Isso pode ser feito pelo cirurgião ou pelo gastroenterologista, fornecendo instruções adequadas aos pacientes sobre uma dieta restrita em oxalato ou outras medidas dietéticas específicas. Por fim, esse caso destaca o sucesso que resulta da cooperação e comunicação entre o patologista e o médico assistente.

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Emerging evidence demonstrates that curcumin has an inhibitory effect on non-small cell lung cancer (NSCLC), and its targets and mechanism of action need further exploration. The goal of this study was to explore the potential targets and mechanism of curcumin against NSCLC by network pharmacology, bioinformatics, and experimental validation, thereby providing more insight into combination treatment with curcumin for NSCLC in preclinical and clinical research. Curcumin targets against NSCLC were predicted based on HIT2.0, STD, CTD, and DisGeNET, and the core targets were analyzed via protein-protein interaction network construction (PPI), Gene Ontology (GO), Kyoto Encyclopedia of Genes and Genomes (KEGG), and molecular docking. The gene expression levels of samples in A549 cells, NCI-H460, and curcumin treated groups were detected by real-time quantitative PCR. A total of 67 common targets between curcumin and NSCLC were collected by screening public databases. GO and KEGG analysis suggested that curcumin treatment of NSCLC mainly involves cancer-related pathways, such as PI3K-AKT signaling pathway, Foxo signaling pathway, microRNAs, MAPK signaling pathway, HIF-1 signaling pathway, etc. The targets with the highest degree were identified through the PPI network, namely CASP3, CTNNB1, JUN, IL6, MAPK3, HIF1A, STAT3, AKT1, TP53, CCND1, VEGFA, and EGFR. The results of the in vitro experiments showed that curcumin treatment of NSCLC down-regulated the gene expressions of CCND1, CASP3, HIF1A, IL-6, MAPK3, STAT3, AKT1, and TP53. Our findings revealed that curcumin functions as a potential therapeutic candidate for NSCLC by suppressing multiple signaling pathways and interacting with multiple gene targets.

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Background: Curcumin, a curcuminoid derived from turmeric (Curcuma longa), has been extensively studied for various bioactivities. However, its limited water solubility and sensitivity to light restrict its therapeutic applications. In recent years, researchers have been exploring ways to enhance the properties of curcumin. In the current investigation, curcumin was transformed into its nanoform by utilizing d-glucose in an aqueous phase at room temperature, creating water-soluble nanocurcumin. Since this study focuses on altering the architecture of the curcumin sphere, it has been examined explicitly for antioxidant activity through well-defined in vitro assays. Materials and Methods: Nanocurcumin was synthesized through the conversion of curcumin using d - glucose. The zeta potential of nanocurcumin was measured to assess its water solubility. The orientation of curcumin in its nanoform was confirmed through ultraviolet–visible (UV–Vis) spectroscopy and photoluminescence. High-resolution transmission electron microscopy (HR-TEM) was employed to provide evidence of its potential assembly. At the same time, Fourier-transform infrared (FTIR) analysis was conducted to discern alterations in peaks and stretches indicative of the transition to the nanoform. The prepared nanocurcumin was examined for superoxide and free radical scavenging activities, given curcumin’s well-known antioxidant properties. Results: The zeta potential measurement of nanocurcumin yielded a mean value of ?53.4 mV. The nanoform orientation of curcumin was confirmed through UV–Vis spectroscopy, revealing a shift in the maximum absorption from 450 to 430 nm. Photoluminescence analysis, conducted with excitation at a wavelength of 478 nm, recorded a significant 5.01-fold increase in fluorescence intensity, from 193.6 to 971.8 a.u., accompanied by a slight shift in the emission maxima peak. HR-TEM was done, and various field images have been taken. Some images illustrated the probable assembly of curcumin into a spherical nanoform with a shell-like structure embedded inside the glucose sphere. Fourier-transform infrared analysis indicated alterations in some peaks and stretches due to the transition to the nanoform. Upon examination of the prepared nanocurcumin for superoxide and free radical scavenging activity, a noteworthy enhancement in superoxide scavenging activity was observed, increasing from 21.42 ± 5.01% in the native form to 69.94 ± 5.84% in the nanoform at a concentration of 10 ?g/mL of curcumin. Conversely, a slight reduction in free radical scavenging activity was noted, decreasing from 55.57 ± 5.16% in native curcumin to 47.43 ± 6.83% in the nanoform at the same concentration.Conclusion: The water-soluble curcumin synthesized in this study can be regarded as an advanced molecule with the potential to address diseases mediated by oxidative stress effectively.

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Colorectal cancer poses a significant global health challenge with high incidence and mortality rates, as reported by the World Health Organization. Natural compounds such as curcumin (Cur) and salicylic acid (SCA) have shown promising therapeutic effects against colorectal cancer. However, their oral administration is hindered by their low bioavailability. This study aimed to develop mucoadhesive nanoparticles capable of co-encapsulating Cur and SCA using a double-emulsion process. The copolymer m-PEG-b-PCL, which is considered a safe material for biomedical applications, was chosen as the polymeric precursor, while chitosan, which has mucoadhesive properties, served as the emulsion stabilizer. Through the optimization of drug concentrations, polymer molecular weights, and stabilizer type and concentration, a formulation composed of spherical nanoparticles with an average hydrodynamic diameter of 355 nm and an entrapment efficiency of 13.70% for Cur and 90.72% for SCA was obtained. The release kinetics showed sustained release over 24 hours. Moreover, these nanoparticles demonstrated strong adhesion to the colonic mucosa, presenting a potential localized drug delivery strategy. Co-encapsulation of Cur and SCA within mucoadhesive polymer nanoparticles holds great potential for significantly enhancing the therapeutic outcomes of colorectal cancer treatment.

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Objective To investigate the potential effect and mechanism of curcumin in inhibiting synaptic injury in the cortex of rats with cerebral ischemia-reperfusion. Methods Sprague-Dawley rats were divided into sham-operated group, model group, low-dose curcumin (50 mg/kg) group, and high-dose curcumin (100 mg/kg) group. A model of middle cerebral artery occlusion for 2 hours and reperfusion for 24 hours was constructed, and curcumin was administered. Based on the neurological function score, the effects of curcumin on cerebral infarct volume, synaptic ultrastructure changes, inflammatory cell infiltration, and the expression of NLRP3, Caspase-1, Synapsin1, and CAMKⅡ were observed after the end of the animal treatment. Results The neurological function scores were 0, 3.25±0.43, 2.50±0.50, and 1.50±0.50 for the sham-operated group, model group, low-dose curcumin group, and high-dose curcumin group, respectively. The percentage of cerebral infarct volume was 0, (38.89±2.21)%, (33.48±1.77)%, and (23.69±2.19)%, respectively. Compared with the sham operation group, the model group had severe synaptic ultrastructure damage, extensive inflammatory cell infiltration, significantly increased expression of Caspase-1 and NLRP3 (P < 0.5), and significantly decreased expression of Synapsin1 and CAMKⅡ (P < 0.5). Curcumin treatment significantly inhibited synaptic damage, reduced inflammatory cell infiltration, decreased the expression of Caspase-1 and NLRP3 (P < 0.5), and increased the expression of Synapsin1 and CAMKII (P < 0.5), when compared with the model group. Conclusion Ischemia-reperfusion-mediated synaptic injury in rat brain triggers an inflammatory response in cortical nerve cells, and curcumin alleviates synaptic damage and reduces brain injury by inhibiting inflammatory factor levels.

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Objective:To discuss the improvement effect of curcumin combined with fecal bacteria transplantation on the mice with dextran sulfate sodium(DSS)-induced ulcerative colitis(UC),and to clarify the related mechanism.Methods:Fifty mice were randomly divided into control,model,curcumin,fecal bacteria transplantation,and combination groups.Except for the mice in control group(given distilled water),the mice in the other groups were given distilled water containing 2%DSS to establish the UC models.The mice in curcumin group were gavaged with 0.4 mL of 60 mg·kg-1 curcumin solution once per day for 10 d;the mice in fecal bacteria transplantation group underwent enema with 0.2 mL of fecal bacteria suspension once per day for 10 d;the mice in combination group received the enema of 0.2 mL fecal bacteria suspension and gavaged with 0.4 mL of 60 mg·kg-1 curcumin solution.At the end of the experiment,the disease activity index(DAI)and colon macroscopic damage index(CDMI)of the mice in various groups were calculated;the morphology of colon tissue of the mice in various groups was detected by HE staining;the levels of interleukin(IL)-1β,tumor necrosis factor-α(TNF-α),IL-4,and IL-10 in colon tissue of the mice in various groups were detected by enzyme-linked immunosorbent assay(ELISA)method;the expression levels of occludin and zonula occludens-1(ZO-1)mRNA and proteins in colon tissue of the mice in various groups were detected by real-time fluorescence quantitative(RT-qPCR)and Western blotting methods.Results:The intestinal mucosal epithelial structure of the mice in control group was intact and continuous with regular glandular arrangement and without inflammatory cell infiltration or ulceration;the intestinal mucosal epithelial structure of the mice in model group exhibited loss of colonic mucosal epithelium,disordered glandular arrangement,reduced goblet cells,congestion and edema in mucosal and submucosal layers,and extensive infiltration of inflammatory cells with widespread small ulcers;the intestinal mucosal epithelial structure of the mice in curcumin,fecal bacteria transplantation,and combination groups exhibited relatively intact colonic mucosal epithelial structures with reduced inflammatory cell infiltration and ameliorated mucosal and submucosal congestion and edema.Compared with control group,the DAI and CDMI of the mice in model group were increased(P<0.05),the levels of IL-1β and TNF-α were increased(P<0.05),the levels of IL-4 and IL-10 were decreased(P<0.05),and the expression levels of occludin and ZO-1 mRNA and proteins were decreased(P<0.05);compared with model group,the DAI and CDMI of the mice in curcumin,fecal bacteria transplantation,and combination groups were decreased(P<0.05),the levels of IL-1β and TNF-α were decreased(P<0.05),the levels of IL-4 and IL-10 were increased(P<0.05),and the expression levels of occludin and ZO-1 mRNA and proteins were increased(P<0.05).Compared with curcumin group and fecal bacteria transplantation group,the DAI and CDMI of the mice in combination group were decreased(P<0.05),the levels of IL-1β and TNF-α were decreased(P<0.05),the levels of IL-4 and IL-10 were increased(P<0.05),and the expression levels of occludin and ZO-1 mRNA and proteins were increased(P<0.05).Conclusion:Curcumin combined with fecal bacteria transplantation can ameliorate the pathological damage in colonic tissue of the UC mice,inhibit the secretion of inflammatory factors,and promote the repaiment of intestin mucosa.

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Objective:To study influence of curcumin(Cur)on platelet activity in coronary heart disease.Methods:A total of 40 Wistar male rats were randomly and equally divided into normal group,model group(high-fat diet),as-pirin group(received aspirin based on model group)and Cur group(received Cur based on model group).Platelet aggregation rate,fluorescence intensity and positive rate of CD62p and PAC-1,plasma levels of β-thromboglobu-lin(β-TG)and platelet factor 4(PF4),expression levels of p-p38MAPK and p-JNK were compared among all groups.Results:Compared with normal group,there were significant rise in AA,ADP-induced platelet aggrega-tion rates,fluorescence intensity and positive rate of CD62p and PAC-1,plasma levels of β-TG and PF4,protein expression levels of p-p38MAPK and p-JNK in model group(P＜0.05 or＜0.01).Compared with normal group and model group,there were significant reductions in above indexes except CD62p positive rate in aspirin group and Cur group and CD26p positive rate in Cur group(P＜0.05 or＜0.01).Compared with model group,there were sig-nificant reductions in positive rates of CD26p in aspirin group and Cur group(P=0.001 both).Compared with as-pirin group,there were significant reductions in AA[(51.03±7.39)％vs.(38.43±4.04)％],ADP-induced platelet aggregation rates[(52.32±6.43)％vs.(40.81±5.52)％],fluorescence intensity[CD62p:(53.87±7.42)vs.(43.92±5.45),PAC-1:(59.39±8.01)vs.(42.43±7.39)]and positive rate[CD62p:(49.67±5.93)％vs.(40.36±5.83)％,PAC-1:(50.37±5.83)％vs.(41.44±6.29)％]of CD62p and PAC-1,protein expression levels of p-p38MAPK[(1.01±0.05)vs.(0.79±0.01)]and p-JNK[(1.07±0.03)vs.(0.74±0.02)]in Cur group(P＜0.05 or＜0.01).Conclusion:Cur can decrease platelet activity and inhibit p38MAPK and JNK signal ac-tivation.

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Objective:To explore the inhibitory effect of curcumin on the malignant biological behavior of uveal melanoma (UM) and its possible mechanism.Methods:M23 cells were cultured in curcumin medium with different concentrations (0, 20, 40 and 80 μmol/L) for 48 hours, respectively.The morphological changes of cells were observed under an inverted microscope.The cell survival rate was detected by the cell counting kit-8 (CCK-8) method.The apoptosis, colony formation, migration and invasion of cells were detected by flow cytometry, plate clone formation experiment, cell scratch experiment and Transwell assay, respectively.The relative expressions of genes related to Wnt/β-catenin pathway, c-Myc, Cyclin D1, Survivin and matrix metallo proteinase 9 ( MMP-9) mRNA in cells were detected by real-time fluorescence quantitative PCR.The relative expressions of proteins related to Wnt/β-catenin pathway, c-Myc, Cyclin D1, Survivin, MMP-9 and β-catenin, glycogen synthase kinase 3β (GSK-3β), phosphorylated GSK-3β (p-GSK-3β) and axis inhibition protein 2 (Axin2) proteins were detected by Western blot.Another 20 female BALB/c mice were selected and injected with M23 cell suspension under the subcutaneous fat pad in the left posterior abdomen to establish the in vivo M23 transplanted tumor model.The mice successfully modeled were randomly divided into model group, low-dose curcumin group, medium-dose curcumin group and high-dose curcumin group according to the random number table method, which was intraperitoneally injected with 0, 10, 20 and 40 mg/kg curcumin physiological saline solution respectively.After a continuous injection for 30 days, the subcutaneous tumor was stripped and weighed.The animal experiment process followed the 3Rs principle of animal research and was approved by the Laboratory Animal Ethics Committee of Inner Mongolia Baotou Steel Hospital (No.2021MER-023). Results:The cell survival rate, the number of colony formation, the apoptosis rate, the cell invasion rate and the cell migration rate were (100.00±0.00)%, 128.67±9.18, (1.33±0.29)%, (89.76±4.57)% and 148.33±8.18 in 0 μmol/L curcumin group, (83.78±4.59)%, 100.33±8.73, (14.53±2.04)%, (65.43±3.70)% and 125.33±7.41 in 20 μmol/L curcumin group, (66.09±3.92)%, 58.67±6.55, (27.23±3.56)%, (34.83±2.19)% and 73.67±6.34 in 40 μmol/L curcumin group, and (47.16±3.63)%, 31.67±4.92, (44.73±4.36)%, (18.82±1.99)% and 45.67±5.31 in 80 μmol/L curcumin group.There were statistically significant differences in the survival rate, colony formation number, cell apoptosis rate, migration rate and invasion rate of M23 cells among the four groups ( F=125.321, 97.941, 72.516, 277.097, 139.006; all at P<0.001). With the increase of curcumin concentration, the cell survival rate, colony formation number, cell migration rate and cell invasion number decreased obviously, and the cell apoptosis rate increased obviously, and the pairwise comparisons showed significant differences (all at P<0.05). With the increase of curcumin concentration, the relative expression levels of c-Myc, Cyclin D1, Survivin, MMP-9 mRNA and proteins, β-catenin and p-GSK-3β proteins decreased significantly, while the relative expression level of Axin2 protein increased significantly, showing significant differences in pairwise comparisons (all at P<0.05). The tumor tissue weight of mice decreased with the increase of curcumin dosage, and the pairwise comparisons were statistically significant (all at P<0.05). Conclusions:Curcumin can inhibit the proliferation, migration, invasion and other malignant biological behaviors of UM M23 cells, inhibit tumor growth and promote cell apoptosis.Its mechanism may be related to blocking the activation of Wnt/β-catenin pathway.

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Objective:To evaluate the role of NOD-like receptor protein 3 (NLRP3) inflammasomes in curcumin-induced reduction of sevoflurane-induced postoperative cognitive dysfunction in rats.Methods:Forty SPF healthy male Sprague-Dawley rats, aged 17-18 months, with body mass index of 580-600 g, were divided into 4 groups ( n=10 each) by a random number table method: control group (C group), postoperative cognitive dysfunction group (P group), curcumin group (CU group), and curcumin+ NLRP3 inflammasome activator group (CN group). The rat model of postoperative cognitive dysfunction was prepared by inhaling 1.5% sevoflurane to explore the abdominal cavity. Curcumin suspension 300 mg/kg was given by intragastric administration in CU group and CN group, and the rats received intragastric administration of nidrisin sodium 5 mg/kg simultaneously in CN group, once a day for 6 consecutive days. Rats received the equal volume of normal saline instead in C group and P group. The frequency of crossing the original platform and time spent in the target quadrant were measured by the Morris water maze test. The histopathological changes of hippocampus were observed by HE staining, neuronal apoptosis was detected by TUNEL staining, and the expression of NLRP3, Bcl-2 and Bax was detected by Western blot. Results:Compared with C group, the frequency of crossing the original platform was significantly reduced, the time spent in the target quadrant was shortened, the apoptosis rate of neurons was increased, and the expression of NLRP3 and Bax was up-regulated, and the expression of Bcl-2 was down-regulated in P group ( P<0.05). Compared with P group, the frequency of crossing the original platform was significantly increased, the time spent in the target quadrant was prolonged, the apoptosis rate of neurons was decreased, and the expression of NLRP3 and Bax was down-regulated, and the expression of Bcl-2 was up-regulated in CU group ( P<0.05). Compared with CU group, the frequency of crossing the original platform was significantly reduced, the time spent in the target quadrant was shortened, the apoptosis rate of neurons was increased, and the expression of NLRP3 and Bax was up-regulated, and the expression of Bcl-2 was down-regulated in CN group ( P<0.05). Conclusions:The NLRP3 inflammasome is involved in curcumin-induced reduction of postoperative cognitive dysfunction in sevoflurane-anesthetized rats.

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OBJECTIVE To prepare and characterize curcumin nanomicelles （hereinafter referred to as Cur/mPEG-PBLA micelles）， and to evaluate the in vitro hepatoprotective activity against alcohol liver disease （ALD）. METHODS Cur/mPEG-PBLA micelles were prepared with the dialysis method using methoxy-poly（ethylene glycol）-poly（β-benzyl-L-aspartate） （mPEG-PLGA） as the carrier. The appearance and microscopic morphology of Cur/mPEG-PBLA micelles were observed， and particle size， polydispersity index， Zeta potential， encapsulation efficiency and drug loading content were all detected. The in vitro release， pH stability， thermal stability， dilution stability， storage stability， plasma stability tests， and hemolysis experiments were all performed. The cell model of ALD was established with anhydrous ethanol intervention using human liver cancer cells and normal liver cells as objects， Cur reference solution as reference， to evaluate in vitro preventive and ameliorative effects of Cur/mPEG- PBLA micelles on ALD. RESULTS The prepared Cur/mPEG-PBLA micelles exhibited a pale-yellow milky light， with a spherical shape and uniform distribution. The average particle size was about 140 nm， and the polydispersity index was less than 0.3. Zeta potential was （－8.15±0.05） mV； the encapsulation efficiency was （73.26±3.16）%， and the drug loading content was （4.87± 0.42）%. The cumulative release of Cur reference substance was close to 80% at 10 h； the cumulative release of Cur/mPEG-PBLA micelles at 8 h was 28.94% and only 48.25% at 48 h. pH stability and thermal stability of Cur/mPEG-PBLA micelles were better than those of Cur reference solution； Cur/mPEG-PBLA micelles showed good dilution stability， storage stability and plasma stability， and would not cause hemolysis. Cur reference solution and Cur/mPEG-PBLA micelles had varying degrees of in vitro preventive and ameliorative effects on ALD in two types of cells； after 48 h of application， the above effects of Cur/mPEG-PBLA micelles were significantly better than those of Cur reference solution at the same mass concentration （P＜0.05）. CONCLUSIONS Cur/mPEG-PBLA micelles can improve pH stability and thermal stability of Cur， delayits degradation rate， and have better in vitro hepatoprotective activity against ALD.