摘要：Dental Pulp Stem Cells (DPSCs) represent a new therapeutic alternative for treating superficial burn wounds. This study aimed to evaluate the effectiveness of DPSC-derived secretome on superficial burn wounds in an animal model. The study employed a post-test-only controlled group design using 15 rats with superficial burns. Rats were divided into a negative control group of 0.9% NaCl (K1), a positive control group of moist-exposed burn ointment or MEBO (K2), and a treatment group of DPSC-secretome (K3). The effectiveness of the DPSC-secretome was assessed by wound area percentage and histopathological observations on days 5, 14, and 21. DPSCsecretome significantly reduced the burn wound area (p<0.05). Histology data showed that the DPSC-secretome promoted re-epithelialization, fibroblasts, and collagen formation. Polymorphonuclear cells were also reduced after 21 days, indicating that the DPSCs-secretome has an anti-inflammatory effect. In addition, the DPSC-secretome and MEBO showed equal effects on angiogenesis after 14 days. The DPSC-secretome was more effective than MEBO on superficial dermal burns. This study showed that the DPSC secretome has therapeutic potential for burn wounds.

摘要：AbstrakBerbagai penelitian ilmiah telah membuktikan bahwa kolagen merupakan biomaterial ideal dalam aktivitas penyembuhan luka. Senyawa bioaktif pada madu dan Aloe vera dapat membantu meningkatkan pembentukan kolagen. Penelitian ini dilakukan untuk membandingkan pengaruh aplikasi topikal madu, gel Aloe vera, dan Moist Exposed Burn Ointment (MEBO) terhadap kepadatan kolagen pada proses penyembuhan luka bakar derajat dua pada tikus. Luka bakar dibuat pada 28 ekor tikus dan dibagi menjadi empat kelompok yang dipilih secara acak serta dilakukan aplikasi topikal harian dengan NaCl, madu, gel Aloe vera, dan MEBO secara berurutan. Biopsi kulit dilakukan pada hari ke-7, kemudian dilakukan pembuatan sediaan histopatologi kulit dan dihitung kepadatan kolagennya. Uji One Way ANOVA menunjukkan kepadatan kolagen berbeda secara signifikan antar masing-masing kelompok (p= 0,009). Uji Post Hoc Bonferroni menunjukkan terdapat perbedaan yang signifikan antara kelompok NaCl dengan madu (p= 0,024) dan NaCl dengan MEBO (p= 0,024). Penelitian ini menunjukkan bahwa aplikasi madu dan MEBO secara topikal pada luka bakar derajat dua dapat meningkatkan pembentukan kolagen, sehingga dapat mempercepat proses penyembuhan luka. Madu, Aloe vera, dan MEBO dapat dijadikan sebagai terapi alternatif dalam penyembuhan luka bakar.?AbstractVarious scientific studies have proven that collagen is an ideal biomaterial in wound healing activities. The bioactive compounds in honey and Aloe vera can help increase collagen formation. This study was conducted to compare the effect of topical application of honey, Aloe vera gel, and MEBO (Moist Exposed Burn Ointment) on collagen density in the healing process of second-degree burns in rats. Burns were made on 28 rats which were further randomly divided into four groups to receive daily topical application of NaCl, Aloe vera, honey, and MEBO respectively. Skin biopsy was carried out on the seventh day, then histopathological preparation of the skin was made and collagen density was calculated. Result of One Way ANOVA test showed that collagen density differed significantly between groups (p= 0.009). The Post Hoc Bonferroni test resulted in significant difference between NaCl with honey group (p= 0.024) and NaCl with MEBO (p= 0.024). This study found that topical application of honey and MEBO to second-degree burns could increase collagen formation, thus accelerating wound healing process. Honey, Aloe vera, and MEBO can be used as alternative therapies for healing burns.

摘要：A simple, rapid, and reproducible high-performance liquid chromatography (HPLC) method has been developed and validated for the determination of β-sitosterol in the pharmaceutical dosage form of moist exposed burn ointment (MEBO). This method involved an effective sample procedure for extraction of β-sitosterol from MEBO using an alkali saponification agent composed of 0.8?N ethanolic NaOH and diethyl ether. The chromatographic separation was achieved on a C18 column (50?×?3.0?mm, 2.5?μm), using a mobile phase composed of methanol and acetonitrile (70:30 v/v) pumped in an isocratic mode at a flow rate of 0.7 mL/min. The column temperature was maintained at 40?°C, the injection volume was 10 μL, and the detection wavelength was 203?nm. Employing these conditions, the retention time was found to be 2.10?min. The developed method was validated for its specificity, linearity, accuracy, precision, the limit of detection, the limit of quantification, robustness, and solution stability based on International Council for Harmonisation (ICH) guidelines Q2 (R1). Our proposed method demonstrated superior performance compared to other reported methods. It exhibited a linearity range of 30 to 500?μg/mL and improved detectability with a limit of detection (LOD) of 4.65?μg/mL, highlighting its high sensitivity. Additionally, the separation was achieved in a remarkably short analysis time of just 2.1?min, which not only enhanced throughput but also significantly minimized waste and solvent consumption, thereby making it a more sustainable and effective alternative for β-sitosterol extraction. Moreover, in the light of green and white analytical chemistry, a comprehensive ecological and sustainable tri-color coded assessment protocol was established. The proposed method has been successfully applied to quantify β-sitosterol in commercial products (MEBO?, Avomeb? and BISTROl?) demonstrating its suitability for routine quality control analysis of β-sitosterol in pharmaceutical ointment dosage forms.

摘要：BACKGROUND? Postsurgical scars are of significant concern to patients and surgeons. Many studies have focused on different treatment options for established surgical scars. The prevention and minimization of such aberrant healing responses is more likely to yield better outcomes and require less time and expense. OBJECTIVE AND METHOD? A review of the literature on various forms of prophylactic treatments intended to prevent or minimize the development of prominent postsurgical scars was performed using the Pubmed database over a period from 1987 to 2010. Search terms included “scar prevention,” “scar minimization,” “post-surgical scar management,” and “surgical scars.” RESULTS? Various over-the-counter topical products commonly used by patients have failed to demonstrate any significant benefits in improving final scar outcomes. Numerous interventions performed around the time of surgery, including botulinum toxin, lasers, and intradermal injectable products, have shown effectiveness in minimizing eventual scar appearance. CONCLUSIONS? Patient education on proper wound care is a simple method of improving the cosmetic appearance of surgical scars. At the other end of the spectrum, our knowledge of the complex mechanisms of wound healing has allowed for the development of new, effective treatment modalities, including lasers, botulinum toxin, cytokines, and stem cells.