scholarly journals SYSTEMATIC REVIEW: THE ENHANCEMENT OF ANTI-INFLAMMATION ACTIVITY OF NON STEROIDAL ANTI-INFLAMMATORY DRUG (NSAID) BY SOLID DISPERSION MODIFICATIONS

Author(s):  
DHEA A. RAMADHANI ◽  
ADI YUGATAMA ◽  
DIAN E. ERMAWATI

Objective: NSAIDs are very hydrophobic drugs and have low solubility. This causes the bioavailability of NSAIDs to be low in the body thus affect its anti-inflammatory activity. There has been some primary research proven that solid dispersion can increase the solubility and anti-inflammatory activity of NSAIDs. Moreover, there are not researches explaining the effect of a solid dispersion system on the anti-inflammatory activity of NSAIDs. Therefore, it is necessary to conduct a review to assess the effect of the solid dispersion system on the solubility and anti-inflammatory activity of NSAIDs systematically. Methods: This was systematic review research, where the data were originated from PubMed and Science Direct with the keywords ‘NSAID’, ‘solid dispersion’, and ‘drug effect’. The inclusion criteria formulated were English-language papers, published in 2010–2020, and primary research that conducted in vivo anti-inflammatory testing. The appropriate papers by the inclusion criteria were assessed its quality by the SYRCLE’s tool. Data was analyzed narratively. Results: The results were eight papers under the inclusion criteria. As a whole is known modification of solid dispersion can increase the dissolution profile of NSAIDs. This is because the polymer used can increase the wetting of drug particles, thereby being able to increase the solubility of NSAIDs. Conclusion: The anti-inflammatory activity of NSAIDs by solid dispersion systems are increases compared to NSAIDs without solid dispersions.

2020 ◽  
Vol 10 (3) ◽  
pp. 330-349
Author(s):  
Raghvendra Chaubey ◽  
Nimisha Srivastava ◽  
Apoorva Singh

Objective: The objective of present study was to enhance the potential activities of Quercetin by improving its solubility and dissolution profiles through solid dispersion approach. Method: A three level full factorial design (32) was adopted to study the possible combinations of polyethylene glycol (PEG) 6000 & pluronic F 127 (PF 127). The solid dispersions were prepared by solvent evaporation method and evaluated for percentage yield, drug content, aqueous solubility and drug release. For in vivo evaluations SD4 was incorporated into Carbopol base gel and subjected to anti-inflammatory activity using carrageenan-induced rat paw edema method. Results: SD4 batch with drug to carrier ratio 1:1 showed release of 82.96 ± 1.76 % in 240 min following Higuchi’s model. It was 5.54 fold increment in solubility as compared to quercetin. SD4 batch was further evaluated by FTIR, DSC, PXRD and SEM. The crystallinity was significantly reduced and drug was homogeneously dispersed in the carrier as shown by the results of DSC, PXRD and SEM. The DPPH scavenging assay showed significance in the IC50 value of SD4 as compared to pure quercetin and ascorbic acid when subjected to one way ANOVA at 0.05 level of significance (P<0.0001). In vivo anti-inflammatory study showed 78.17 ± 0.156 % inhibition of edema by SD4 and 58.64 ± 0.640 % by pure quercetin which is significantly lower (P<0.05). Conclusion: These findings demonstrate that the solid dispersion of quercetin shows increased solubility, dissolution profile, drug release and significant potential in enhancing the antiinflammatory activity of drug.


2020 ◽  
Vol 17 ◽  
Author(s):  
Deepak Kumar Singh ◽  
Mayank Kulshreshtha ◽  
Yogesh Kumar ◽  
Pooja A Chawla ◽  
Akash Ved ◽  
...  

Background: The pyrazolines give the reactions of aliphatic derivatives, resembling unsaturated compounds in their behavior towards permanganate and nascent hydrogen. This nucleus has been associated with various biological activities including inflammatory. Thiazolinone is a heterocyclic compound that contains both sulfur and nitrogen atom with a carbonyl group in their structure.Thiazolinone and their derivatives have attracted continuing interest because of their various biological activities, such as anti-inflammatory, antimicrobial, anti-proliferative, antiviral, anticonvulsant etc. The aim of the research was to club pyrazoline nucleus with thiazolinone in order to have significantanti-inflammatory activity. The synthesized compounds were chemically characterized for the establishment of their chemical structures and to evaluate as anti-inflammatory agent. Method: In the present work, eight derivatives of substituted pyrazoline (PT1-PT8) were synthesized by a three step reaction.The compounds were subjected to spectral analysis by Infrared, Mass and Nuclear magnetic resonance spectroscopy and elemental analysis data. All the synthesized were evaluated for their in vivo anti-inflammatory activity. The synthesized derivatives were evaluated for their affinity towards target COX-1 and COX-2, using indomethacin as the reference compound molecular docking visualization through AutoDock Vina. Results: Compounds PT-1, PT-3, PT-4 and PT-8 exhibited significant anti-inflammatory activity at 3rd hour being 50.7%, 54.3%, 52.3% and 57% respectively closer to that of the standard drug indomethacin (61.9%).From selected anti-inflammatory targets, the synthesized derivatives exhibited better interaction with COX-1 and COX-2 receptor, where indomethacin showed docking score of -6.5 kJ/mol, compound PT-1 exhibited highest docking score of -9.1 kJ/mol for COX-1 and compound PT-8 having docking score of 9.4 kJ/mol for COX-2. Conclusion: It was concluded that synthesized derivatives have more interaction with COX-2 receptors in comparison to the COX-1 receptors because the docking score with COX-2 receptors were very good. It is concluded that the synthesized derivatives (PT-1 to PT-8) are potent COX-2 inhibitors.


2021 ◽  
Vol 8 (3) ◽  
pp. 39
Author(s):  
Britani N. Blackstone ◽  
Summer C. Gallentine ◽  
Heather M. Powell

Collagen is a key component of the extracellular matrix (ECM) in organs and tissues throughout the body and is used for many tissue engineering applications. Electrospinning of collagen can produce scaffolds in a wide variety of shapes, fiber diameters and porosities to match that of the native ECM. This systematic review aims to pool data from available manuscripts on electrospun collagen and tissue engineering to provide insight into the connection between source material, solvent, crosslinking method and functional outcomes. D-banding was most often observed in electrospun collagen formed using collagen type I isolated from calfskin, often isolated within the laboratory, with short solution solubilization times. All physical and chemical methods of crosslinking utilized imparted resistance to degradation and increased strength. Cytotoxicity was observed at high concentrations of crosslinking agents and when abbreviated rinsing protocols were utilized. Collagen and collagen-based scaffolds were capable of forming engineered tissues in vitro and in vivo with high similarity to the native structures.


Pharmaceutics ◽  
2021 ◽  
Vol 13 (5) ◽  
pp. 743
Author(s):  
Geovana F. G. Silvestre ◽  
Renally P. Lucena ◽  
Genil D. Oliveira ◽  
Helimarcos N. Pereira ◽  
Jhonatta A. B. Dias ◽  
...  

This work aimed to carry out a study of Apodanthera congestiflora by investigating its chemical composition and pharmacological potential. From the dichloromethane phase (Dic-Ac) of the A. congestiflora stems, three compounds were identified: cayaponoside C5b (Ac-1), cabenoside C (Ac-2) and fevicordin C2 glucoside (Ac-3), being last identified for the first time as a natural product. These compounds were obtained by chromatographic methods and their structures were elucidated by means of spectroscopic analysis of IR, MS and NMR. In the quantification of Dic-Ac, it was possible to observe the presence of 7% of cayaponoside C5b. Dic-Ac showed significant toxicity for in vivo tests, with macroscopic and biochemical changes. The anti-inflammatory activity of Dic-Ac was investigated using the paw edema model. A decrease in inflammatory signs was observed in the first 5 h and the most effective dose in reducing edema with was 7.5 mg kg−1 (66.6%). Anti-tumor activity of Dic-Ac was evaluated by Ehrlich’s carcinoma model, which showed inhibition rate of 78.46% at 15 mg kg−1 dosage. The phytochemical investigation, together with the biological tests carried out in this study, demonstrated that A. congestiflora is a promising species in the search for therapeutics, since it contains substances with high pharmacological potential in its composition.


Molecules ◽  
2021 ◽  
Vol 26 (6) ◽  
pp. 1718
Author(s):  
Kaimin Lu ◽  
Jing Zhou ◽  
Jie Deng ◽  
Yangjun Li ◽  
Chuanfang Wu ◽  
...  

The incidence and prevalence of inflammatory bowel disorders (IBD) are increasing around the world due to bacterial infection, abnormal immune response, etc. The conventional medicines for IBD treatment possess serious side effects. Periplaneta americana (P. americana), a traditional Chinese medicine, has been used to treat arthritis, fever, aches, inflammation, and other diseases. This study aimed to evaluate the anti-inflammatory effects of oligosaccharides from P. Americana (OPA) and its possible mechanisms in vivo. OPA were purified and biochemical characterization was analyzed by HPGPC, HPLC, FT-IR, and GC–MS. Acute colitis mice model was established, the acute toxicity and anti-inflammatory activity were tested in vivo. The results showed OPA with molecular mass of 1.0 kDa were composed of 83% glucose, 6% galactose, 11% xylose, and the backbone was (1→4)-Glcp. OPA had potent antioxidant activities in vitro and significantly alleviated the clinical symptoms of colitis, relieved colon damage without toxic side effects in vivo. OPA exhibited anti-inflammatory activity by regulating Th1/Th2, reducing oxidative stress, preserving intestinal barrier integrity, and inhibiting TLR4/MAPK/NF-κB pathway. Moreover, OPA protected gut by increasing microbial diversity and beneficial bacteria, and reducing pathogenic bacteria in feces. OPA might be the candidate of complementary and alternative medicines of IBD with low-cost and high safety.


2021 ◽  
Vol 271 ◽  
pp. 113881
Author(s):  
Djouher Amroun ◽  
Meriem Hamoudi ◽  
Seddik Khennouf ◽  
Sabrina Boutefnouchet ◽  
Daoud Harzallah ◽  
...  

Foods ◽  
2021 ◽  
Vol 10 (3) ◽  
pp. 506
Author(s):  
Bernardo Romão ◽  
Ana Luísa Falcomer ◽  
Gabriela Palos ◽  
Sandra Cavalcante ◽  
Raquel Braz Assunção Botelho ◽  
...  

This study aimed to perform a systematic review and meta-analysis of the glycemic index (GI) of gluten-free bread (GFB) and its main ingredients. The systematic review followed PRISMA guidelines, using seven electronic databases (PubMed, EMBASE, Scopus, Science Direct, Web of Science, gray literature research with Google Scholar, and patents with Google Patent tool), from inception to November 2020. Eighteen studies met the inclusion criteria evaluating 132 GFB samples. Five articles tested GI in vivo, eleven in vitro; and two studies tested both methods. The analysis showed that 60.7% (95% CI: 40.2–78.1%) of the samples presented high glycemic indexes, evidencing a high glycemic profile for GFB. Only 18.2% (95% CI: 11.7–27.2%) of the bread samples presented in the studies were classified as a low GI. Meta-analysis presented moderate/low heterogenicity between studies (I2 = 61% and <1% for both high and low GIs) and reinforced the proportion of high GIs. Lower GIs were found in formulations based on Colocasia esculenta flour or enriched with fiber, yogurt and curd cheese, sourdough, psyllium, hydrocolloids, enzymes, fructans, and resistant starch, highlighting the efficacy of these ingredients to lower GFBs’ GI. GFB tends to present high GI, impacting the development of chronic diseases when consumed.


Author(s):  
Thriveni Vasanth Kumar ◽  
Manjunatha H. ◽  
Rajesh Kp

Objective: Dietary curcumin and capsaicin are well known for their health beneficial potencies. The current study was done to assess the anti-inflammatory activity of curcumin, capsaicin and their combination by employing in vitro and in vivo models.Methods: We investigated the protective effect of curcumin, capsaicin and their combination using in vitro heat induced human red blood cell (HRBC) membrane stabilisation, in vivo 3% agar induced leukocyte mobilisation and acetic acid induced vascular permeability assay.Results: Curcumin, capsaicin and their combination exhibited concentration dependent protective effect against heat-induced HRBC membrane destabilisation, while combined curcumin and capsaicin restored 87.0±0.64 % membrane stability and it is found to be better than curcumin, capsaicin and diclofenac sodium (75.0±0.25. 72±0.9 and 80.0±0.31 %) protective effect. In agar suspension induced leukocyte mobilization assay, the combined curcumin and capsaicin had shown 39.5±1.58 % of inhibition compared to individual curcumin and capsaicin, which showed moderate inhibition of 16.0±3.14 and 21.6±2.17 % respectively. Besides, the combined curcumin and capsaicin had shown highly significant inhibition of acetic acid-induced vascular permeability in rats (62.0±3.14 %), whereas individual curcumin and capsaicin showed moderate inhibition of vascular permeability with 36.0±2.41 and 43.0±1.92 % respectively.Conclusion: This study demonstrates the significant anti-inflammatory property of combined curcumin and capsaicin at half of the individual concentration of curcumin and capsaicin.


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