Assessment of various intralesional injections in keloid: comparative analysis.

 : In reaction to skin injury in genetically predisposed persons, the keloid is formed and marked by benignant overgrowth of dermic collagen. Intralesional triamcinolone was used in the treatment of keloids with varying results. AIM: Intralesional triamcinolone is a gold standard in treating the keloids in comparison with its effectiveness versus intralesional 5-fluorouracil intralesional verapamil and intralesional platelet-rich plasma. PATIENTS AND METHODS: Several 160 cases were categorized into four groups of each group-containing 40 cases. Group-A (control) treated with intralesional triamcinolone and Group-B intralesional verapamil, Group-C intralesional 5-fluorouracil, and Group-D intralesional platelet-rich plasma. Patients were assessed for clinical response based on a decrease in the patient and observer scar assessment scale (POSAS) at baseline and the end of treatment. RESULTS: The mean base-line POSAS score was 91 ± 10.98 SD check-in Group-A, 90 ± 10.85 in Group-B, 89 ± 10.06 in Group-C, and 92 ± 10.84 in Group-D. POSAS score after 24 weeks 36 ± 12.74 in Group-A, 29 ± 10.91 in Group-B, 39 ± 13.74 in Group-C, 36 ± 12.74 in Group-D. Statistically, a significant difference was observed between groups. CONCLUSION: Intralesional verapamil reported to be the most effective therapy and platelet-rich plasma was effective as intralesional triamcinolone acetonide with no serious side effects and 5-fluorouracil was less effective in treating the keloids.

Synthesis, Characterization of Chitosan-Aluminum Oxide Nanocomposite for Green Synthesis of Annulated Imidazopyrazol Thione Derivatives.

Chitosan-aluminum oxide nanocomposite was synthesized, characterized, and used as a green heterogeneous catalyst to synthesize novel imidazopyrazolylthione derivatives. Nanocomposite polymeric material was characterized by EDS-SEM and XRD. The powerful catalytic activity, and its base character of the nanocomposite, was used to synthesize imidazopyrazolylthione (1) in a good yield compared to traditional cyclocondensation synthesis. Using the nanocomposite catalyst, substitution of the thiol group (1) afforded the corresponding thiourea (2) and the corresponding ester (3). The efficiency of the nanocomposite over the traditional base organic catalyst, Et3N and NaOH, makes it an effective, economic, and reproducible nontoxic catalyst. Moreover, the heterogeneous nanocomposite polymeric film was easily isolated from the reaction medium, and recycled up to four times, without a significant loss of its catalytic activity. The newly synthesized derivatives were screened as antibacterial agents and showed high potency. Molecular docking was also performed for a more in-depth investigation. The results of the docking studies have demonstrated that the docked compounds have strong interaction energies with both Gram-positive and Gram-negative bacteria.

Oxidized alginate/gelatin decorated silver nanoparticles as new nanocomposite for dye adsorption.

In the current article di-aldehyde alginate (DAA) crosslinking gelatin (Ge) hydrogel was prepared and investigated for stabilizing silver nanoparticles. DAA/Ge decorated silver nanoparticles hydrogel was characterized by IR, XRD, TGA, SEM and AFM. The outcomes demonstrate that silver nanoparticles with uniform sizes were homogenously distributed through DAA/Ge hydrogel. DAA/Ge decorated silver nanocomposite was examined for the rejection of methylene blue (MB) from aqueous solutions. Comparing with DAA/Ge hydrogel, the nanocomposite has high efficiency for removal of MB. The highest MB removal efficiency was observed at pH 7 and the adsorption process is well described by pseudo-second order and Langmuir adsorption model with adsorption capacity of 625 mg/g. Our results proved that the DAA/Ge/Ag nanocomposite could be used for removal of MB from decontaminated solutions.

Conversion of Curcumin into Heterocyclic Compounds as Potent Anti-diabetic and Anti-histamine Agents.

Potential biologically active derivatives of the curcumin were prepared by the cyclocondensation reaction cyclohexanone 2, imino pyrimidine 3, pyrmidinones 4, thiopyrimidine 6 and pyranone 5, 7 when treated with acetylacetone, guanidine, ureaethylcyanoacetate, thiourea and ethylacetoacetate, respectively. The structures of compounds (2-7) were elucidated by means of microanalysis as well as spectral measurements such as IR, 1H-NMR, MS. The anti-diabetic potential of curcumin derivatives were evaluated by assessing amylase inhibition assay, also inhibition of histamine release activity of curcumin derivatives were assessed by U937 human monocytes. The results for amylase inhibition activity revels that the curcumin inhibits α-amylase in a concentration dependent manner. Compounds 4 and 5 exhibited significant inhibitory activity against amylase enzyme and was comparable with that of acrabose. Also, compounds 5, 6 and 7 exhibited significant inhibitory activity against histamine. Our results concluded that curcumin pyrmidinones and pyranone derivatives have highly effects as anti-diabetic and anti-histamine activities.