The researchers, working at State University of Bangladesh in Dhaka, obtained fully ripe Ashwina mangoes from a local market during the mid-April to mid-June 2025 season and cut them into uniform two-centimeter cubes. They then prepared six coating formulations: an untreated control, pure aloe vera gel, pure mixed flower honey, and three blends mixing the two ingredients in ratios of 50:50, 75:25, and 25:75. Each solution was built on a common film-forming base of 1% glycerol as a plasticizer, 1.5% carboxymethyl cellulose as a thickening film former, 1% acetic acid to lower pH and inhibit browning enzymes, and 2% methanol to help disperse honey’s bioactive compounds. The mango cubes were dipped for two minutes, dried for twenty minutes, sealed in low-density polyethylene bags, and stored at just above 4 degrees Celsius with 85% relative humidity for twenty days, with measurements taken every five days.

The experimental design was unusually rigorous for a food preservation study. Three hundred fifty fruits were divided across six treatments with three independent biological replicates each, and an independent researcher assigned treatments at random to ensure blinding. The team tracked moisture loss, firmness, color, total soluble solids, titratable acidity, pH, vitamin C, total polyphenols, total flavonoids, microbial counts, and visible spoilage. Statistical analysis using two-way ANOVA and post hoc tests confirmed that both the coating formulation and storage time, as well as their interaction, significantly shaped nearly every quality attribute measured.

The clearest winner was the pure aloe vera coating. By day 20, uncoated control cubes had lost 27.80% of their moisture, while those coated with 100% aloe vera lost only 14.28%, a relative reduction of nearly half. The mechanism is physical rather than mysterious: the aloe polysaccharides form a semi-permeable film on the cut surface that restricts water vapor escape and gas exchange, suppressing respiration and transpiration simultaneously. Because moisture loss drives softening, shrinkage, and metabolic stress in cut fruit, this single effect cascades through nearly every other quality measure.

Firmness told the same story. Coated mangoes remained significantly firmer than uncoated ones throughout storage, and the pure aloe vera treatment retained more than 90% of its initial firmness by day 20, while the control had softened dramatically. The coating appears to slow the enzymatic breakdown of pectin and hemicellulose, the cell wall components responsible for the transition from crisp to mushy. Interestingly, the 75% aloe vera plus 25% honey blend was the second-best performer at around 71% firmness retention, but formulations richer in honey consistently underperformed pure aloe vera.

That underperformance is the study’s most provocative finding. The researchers had hypothesized that honey’s renowned antimicrobial and antioxidant properties would synergistically enhance aloe vera’s barrier. Instead, the data suggest the opposite: honey’s hygroscopic nature and high concentration of reducing sugars likely increase surface water activity and weaken the polysaccharide film matrix, diluting rather than reinforcing aloe vera’s protective capacity. The authors conclude that the assumption that more bioactive ingredients yield better preservation simply does not hold for fresh-cut mango under refrigeration, a caution worth heeding in a field eager to stack natural additives.

Nutritional preservation was equally impressive. Vitamin C declined in all samples, but the uncoated control lost approximately 23.8 milligrams per 100 grams by day 20, while the aloe vera-coated cubes lost only 7.91 milligrams, thanks to the film’s low oxygen permeability limiting ascorbic acid oxidation. Total phenolic content fell by 51.68% in the control but by only 22.51% in the honey-coated sample, with intermediate losses in the other treatments. Flavonoids followed a parallel pattern, dropping by more than half in untreated fruit while coated samples retained substantially more of these antioxidant compounds that scavenge reactive oxygen species during senescence.

Microbiology sealed the case. Total viable bacterial counts in the uncoated control surged from 1.79 times ten cubed to 5.27 times ten to the sixth colony-forming units per gram over twenty days, a nearly three-thousand-fold increase, while all coated treatments suppressed growth dramatically, with pure aloe vera keeping counts lowest throughout. Mold and yeast counts told the same story, reaching 92.33 times ten per gram in the control versus 33 in the aloe vera group. Visually, the control fruit was dark brown, off-flavored, and heavily infected with fungus by day 20, while coated samples remained yellowish and acceptable considerably longer. Pearson correlation analysis reinforced the picture, revealing strong negative relationships between moisture loss and firmness, phenolics, and flavonoids, indicating that dehydration is the central driver of quality collapse.

The study’s limitations are honest and worth noting. It tested a single local mango variety under one refrigeration condition at laboratory scale, without trained sensory panels, commercial processing trials, or cost analysis, and it did not directly measure film thickness or gas permeability. Even so, the implications are substantial. Bangladesh produced over 1.87 million metric tons of mango in 2025, and postharvest losses in climacteric fruits remain a major source of food waste and associated carbon emissions worldwide. An edible, biodegradable coating made from locally sourced aloe vera and honey offers a clean-label alternative to synthetic preservatives, and the finding that pure aloe vera outperforms the blends provides a clear, evidence-based formulation guideline. Future work on encapsulating active compounds and extending the approach to papayas, guavas, and other climacteric fruits could push this humble plant gel from kitchen remedy to industrial shelf-life technology.

Subject of Research: Edible aloe vera and honey coatings for extending the shelf life and quality of refrigerated fresh-cut mango

Article Title: Aloe vera–Honey Edible Coating Prolongs Shelf Life and Preserves Quality of Refrigerated Fresh‐Cut Mango (Mangifera indica)

Article References: Khatun, T., & Asaduzzaman, M. (2026). Aloe vera –Honey Edible Coating Prolongs Shelf Life and Preserves Quality of Refrigerated Fresh‐Cut Mango ( Mangifera indica ). Food Science & Nutrition, 14(10), Article e72447. https://doi.org/10.1002/fsn3.72447

Image Credits: AI Generated

DOI: 10.1002/fsn3.72447

Keywords: aloe vera, honey, edible coating, fresh-cut mango, shelf life, food preservation, postharvest quality, antioxidants, microbial growth, refrigerated storage, moisture loss, firmness

The biological story at the heart of the review unfolds in four overlapping stages: hemostasis, inflammation, proliferation, and remodeling. Within seconds of injury, platelets aggregate and form a fibrin clot that stops blood loss and simultaneously releases an early burst of chemical signals. The review emphasizes that this initial clot is far more than a plug; it is a temporary scaffold soaked in platelet-derived growth factor and transforming growth factor beta, the molecules that recruit neutrophils and macrophages into the wound bed. Neutrophils arrive first, engulfing bacteria and releasing antimicrobial compounds, and recent work on neutrophil extracellular traps, web-like structures of DNA and toxic proteins that immobilize pathogens, illustrates how these cells shape the wound environment in ways that can either clear infection or, when excessive, damage surrounding tissue and prolong inflammation.

As inflammation gives way to proliferation, the cast of molecular players expands. The review catalogues the major growth factors and their receptors: vascular endothelial growth factor driving new blood vessel formation, epidermal growth factor and fibroblast growth factor stimulating keratinocyte and fibroblast division, and platelet-derived growth factor sustaining the migration of repair cells into the defect. These ligands feed into a remarkably interconnected web of intracellular signaling cascades, including SMAD, MAPK, PI3K/AKT, JAK/STAT, Wnt/beta-catenin, Notch, Hippo/YAP-TAZ, mTOR, and NF-kappaB pathways. The authors stress that no single pathway acts alone; transforming growth factor beta, for example, orchestrates both early inflammation and later scar formation through SMAD-dependent transcription, while hypoxia within the wound modifies how fibroblasts respond to its isoforms, linking oxygen tension directly to the quality of the matrix they deposit.

The extracellular matrix emerges in the review as far more than passive scaffolding. Collagen fibers, glycoproteins such as fibronectin and laminin, and bridging molecules like nidogen and perlecan form the basement membrane that underpins epidermal integrity, and their organization determines whether tissue regains strength or fails structurally. Specialized fibroblasts differentiate into myofibroblasts, the contractile cells that pull wound edges together, and their secretome interacts dynamically with the surrounding microenvironment. Single-cell RNA sequencing studies cited in the review reveal that fibroblasts in diabetic wounds are not a uniform population but a heterogeneous collection of subtypes, some of which appear locked into dysfunctional states. This heterogeneity helps explain why diabetic ulcers so often stall in a chronic, inflammatory phase and why therapies that work in acute wounds frequently disappoint in chronic ones.

Chronic wound biology occupies a central place in the analysis. In diabetes, persistently elevated pro-inflammatory cytokines disrupt the normal transition from the inflammatory to the proliferative phase, leaving wounds trapped in a self-perpetuating cycle of tissue destruction and incomplete repair. Microbial biofilms add another layer of complexity: structured bacterial communities encased in protective matrix resist both antibiotics and immune cells, and the review highlights recent work framing biofilms as major diagnostic and therapeutic barriers in non-healing wounds. Hypertrophic scarring and keloids represent the opposite failure mode, in which fibroblast activity and collagen deposition overshoot, producing raised, disfiguring lesions whose molecular pathogenesis, from altered growth factor signaling to mechanical tension, is now being mapped in detail. The review also notes the underappreciated symptom burden of chronic wounds, including the prevalence and mechanisms of itch, which affects quality of life in ways clinical metrics often overlook.

Against this molecular backdrop, the review turns to traditional and indigenous therapies, and this is where the narrative becomes genuinely striking. Honey, one of the oldest wound dressings known to medicine, receives the strongest evidential endorsement. A Cochrane systematic review on honey as a topical wound treatment, alongside more recent systematic reviews and meta-analyses of honey in diabetic foot ulcers, supports its antibacterial and healing-promoting properties, which are attributed to high osmolarity, acidity, hydrogen peroxide generation, and additional bioactive compounds. The authors point out that honey has effectively migrated from folk remedy to advanced wound care product, with medical-grade formulations now used in clinical settings worldwide.

Aloe vera is another traditional remedy with growing mechanistic support. Studies cited in the review show that aloe gel extracts promote fibroblast proliferation, migration, and viability, and that its phenolic and polysaccharide fractions contribute to wound-healing activity in vitro. The review also surveys a wide ethnobotanical landscape: Moringa oleifera fractions tested in human dermal fibroblasts, Vietnamese medicinal plants with documented traditional wound uses, Croton species from South American traditional medicine, Justicia pectoralis, prickly pear cactus, ash species from Caucasus ethnobotany, and neem oil, whose acute and subacute toxicity has been formally evaluated. Animal-derived remedies appear as well, including frog skin preparations and the antibacterial peptides discovered in frog skin secretions, such as dermaseptin-AC from the red-eyed tree frog Agalychnis callidryas, a molecule identified and rationally designed as a novel antimicrobial agent.

Perhaps the most vivid example of tradition validated by modern evidence is maggot debridement therapy, the controlled application of fly larvae to clean necrotic tissue from chronic wounds. A systematic review of maggot therapy in wound healing supports its role in removing dead tissue and controlling infection, and the review notes that some of these traditional treatments are now backed by Cochrane review-level evidence, the gold standard in evidence-based medicine. The authors also flag the ethical dimension of this research frontier: the Nagoya Protocol on access to genetic resources establishes the framework for fair and equitable benefit-sharing when indigenous knowledge and biological resources feed into commercial drug development, a reminder that translating traditional medicine into modern therapeutics carries obligations to the communities that preserved that knowledge.

The review situates these traditional approaches within the broader arc of modern wound care technology. Smart dressings that respond to the wound environment, collagen-based products, curcumin-loaded drug delivery systems for acute and chronic wounds, mesenchymal stem cell-derived exosomes, and bioengineered skin substitutes all feature in the cited literature as the field moves from passive coverage toward active, biology-directed intervention. Specialized pro-resolving lipid mediators and dietary omega-3 and omega-6 fatty acids represent another emerging strategy, aiming not to suppress inflammation but to actively resolve it, a concept that reframes chronic wounds as failures of resolution rather than simply failures of defense.

The authors’ conclusion is ultimately a call for integration. By connecting the molecular pathways that regulate each phase of repair, the cellular dysfunctions that trap wounds in chronicity, the newest biological therapies, and the evidence-based subset of traditional medicine, they argue, researchers can chart a path toward safer and more effective wound treatment. In an era when antimicrobial resistance threatens conventional approaches and diabetic wounds continue to consume enormous healthcare resources, the idea that a molecule from frog skin, a polysaccharide from aloe, or medical-grade honey might stand alongside growth factor therapeutics and engineered dressings is no longer fringe science. It is, the review suggests, exactly the kind of cross-disciplinary synthesis that chronic wound care has been waiting for, provided the evidence is gathered as rigorously as the molecular biology itself.

Subject of Research: The molecular mechanisms of skin wound healing and the evidence base for indigenous and traditional wound therapies

Article Title: An integrative review of wound healing: anatomy, molecular mediators, and indigenous therapies

Article References: Dhanush, R., Naveen, D. K., Sneha, H. R., Mudhol, S., & Raghunathanaidu, B. D. (2026). An integrative review of wound healing: anatomy, molecular mediators, and indigenous therapies. Molecular Biology Reports, 53(1), Article 1663. https://doi.org/10.1007/s11033-026-12835-2

Image Credits: AI Generated

DOI: 10.1007/s11033-026-12835-2

Keywords: wound healing, growth factors, signaling pathways, chronic wounds, honey, Aloe vera, maggot debridement therapy, traditional medicine, indigenous therapies, extracellular matrix, biofilms, diabetic foot ulcers

Cognitive impairment is one of the defining features of neurodegenerative disorders such as Alzheimer’s disease, and it arises from a convergence of damaging processes rather than a single failure point. The research team, led by Sami I. Alzarea of Jouf University in Saudi Arabia together with colleagues at several Saudi and Indian institutions, focused on four intertwined culprits: dysfunction of the cholinergic neurotransmitter system, oxidative stress, neuroinflammation, and the loss of neuroplasticity, the brain’s capacity to rewire and adapt. Because acemannan, an acetylated beta-(1→4)-linked polymannan, is already known to possess antioxidant and anti-inflammatory properties, the investigators reasoned that it might counter several of these processes at once.

To test that idea, the researchers used Wistar rats treated with scopolamine, a drug that blocks acetylcholine receptors and reliably produces learning and memory deficits that mirror aspects of Alzheimer’s pathology. Scopolamine models are widely used in preclinical dementia research precisely because the compound rapidly disrupts cholinergic signaling, elevates oxidative damage, and triggers inflammatory responses in the hippocampus and cortex. Animals in the study were assessed with a battery of established behavioral instruments: the Morris Water Maze for spatial learning and memory, the Y-maze for working memory, the Novel Object Recognition test for recognition memory, and the rotarod test for motor coordination.

The results were striking. Rats given scopolamine performed poorly across the behavioral suite, showing impaired navigation, reduced spontaneous alternation, diminished recognition of novel objects, and compromised motor performance. Biochemical analysis of brain tissue confirmed the expected damage: distorted levels of the neurotransmitters acetylcholine, GABA, dopamine, serotonin, and glutamate; disturbed activity of the cholinergic enzymes acetylcholinesterase and choline acetyltransferase; elevated malondialdehyde and nitric oxide, both hallmarks of oxidative injury; and surging levels of the pro-inflammatory cytokines IL-1β, IL-6, and TNF-α. Histopathology revealed degenerating pyramidal neurons, the workhorse cells of memory circuitry.

Acemannan treatment turned much of this picture around. Treated animals improved their performance in the water maze, Y-maze, and object recognition tasks, and recovered motor function on the rotarod. At the molecular level, the polysaccharide restored neurotransmitter balance, normalized the cholinergic enzymes, and reduced oxidative stress markers while boosting the antioxidant defenses of the brain, including superoxide dismutase, catalase, and reduced glutathione. Inflammatory cytokine levels fell, and the cell-death executor caspase-3 was decreased. Perhaps most strikingly, acemannan increased the expression of neuroplasticity markers, brain-derived neurotrophic factor, CREB, SIRT1, and PGC-1α, a signaling quartet central to learning, memory consolidation, and neuronal resilience.

The histological evidence reinforced the biochemical story. Brains from acemannan-treated rats showed substantial neuroprotection, with pyramidal cells appearing mostly normal under the microscope, a sharp contrast to the degeneration observed in the scopolamine-only group. The researchers also demonstrated an inhibitory effect of acemannan on acetylcholinesterase in vitro, the same enzymatic target exploited by several approved Alzheimer’s drugs, suggesting a plausible mechanism for the restored acetylcholine signaling seen in vivo.

To probe how acemannan might engage its molecular targets directly, the team turned to GlycoTorch Vina, a carbohydrate-specific molecular docking tool. Carbohydrates pose unusual challenges for conventional docking software because of their flexibility and complex hydrogen-bonding patterns, making a glycan-specialized approach particularly appropriate. The docking results showed that acemannan binds favorably to the muscarinic acetylcholine receptor CHRM1, with binding energies ranging from −6.1 to −5.4 kcal/mol, the strongest interaction observed. Weaker but still favorable affinities were predicted for brain-derived neurotrophic factor (−4.8 to −4.4 kcal/mol) and TNF-α (−4.3 to −3.0 kcal/mol), hinting that a single sugar polymer could simultaneously touch cholinergic, neurotrophic, and inflammatory pathways.

What makes the study notable is its breadth. Rather than testing a single endpoint, the authors connected behavior, neurotransmitter chemistry, enzymology, oxidative stress, cytokine biology, apoptosis, neuroplasticity signaling, tissue pathology, and computational structural biology into one coherent picture. The convergence of evidence from so many angles strengthens the case that acemannan’s effect is not an artifact of any one assay but reflects genuine, multi-mechanism neuroprotection in this animal model. The work was funded by the Deanship of Graduate Studies and Scientific Research at Jouf University, and the authors report no conflicts of interest.

Acemannan itself has an interesting history. It is the principal bioactive polysaccharide of Aloe vera gel, and earlier toxicological studies dating back decades evaluated injectable formulations in mice, rats, and dogs with acceptable safety profiles. More recent work has explored its role in wound healing, immune modulation, and even diabetes, where it attenuated inflammatory cytokines and apoptosis in a rat model. The new findings extend this portfolio into neuroscience, a field where naturally sourced bioactive polysaccharides are attracting growing interest as sources of low-toxicity, multi-target protective agents.

Caution is nonetheless warranted before celebrating a brain-boosting aloe remedy. The evidence remains preclinical, derived from a chemically induced model in rats rather than from human patients with Alzheimer’s or other dementias, and questions of dosage, bioavailability, blood-brain barrier penetration, and long-term safety in the context of cognitive disease remain open. Scopolamine-induced impairment, while useful, captures only a slice of the pathology of human neurodegeneration. Still, the study offers a rigorous proof of concept that a sugar molecule from a common succulent can shield the brain through cholinergic, antioxidant, anti-inflammatory, and neuroplastic mechanisms at once. If future studies confirm and extend these results, acemannan could join a promising class of natural polysaccharides under investigation for protecting the aging mind.

Subject of Research: Neuroprotective effects of the Aloe vera polysaccharide acemannan against scopolamine-induced cognitive impairment in rats

Article Title: Acemannan as a potential therapeutic agent for cognitive impairment via modulation of cholinergic, oxidative, and inflammatory pathways: in vivo and in silico evidence

Article References: Alzarea, S. I., Alsahli, T. G., Alzarea, A. I., Almutairi, M., Alquraini, A., Zafar, A., & Sayyed, N. (2026). Acemannan as a potential therapeutic agent for cognitive impairment via modulation of cholinergic, oxidative, and inflammatory pathways: in vivo and in silico evidence. 3 Biotech, 16(10), Article 439. https://doi.org/10.1007/s13205-026-05068-4

Image Credits: AI Generated

DOI: 10.1007/s13205-026-05068-4

Keywords: acemannan, Aloe vera, cognitive impairment, neuroprotection, scopolamine, oxidative stress, neuroinflammation, molecular docking, Alzheimer's disease, BDNF, acetylcholinesterase, Wistar rats