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This review suggests that quercetin supplementation may benefit ovarian functions and hormonal levels in polycystic ovary syndrome, though further high-quality trials are needed for confirmation.

This study found that the combination of letrozole and quercetin loaded in spanlastics showed enhanced cytotoxicity and other anticancer effects against MCF-7 breast cancer cells compared to individual treatments.

This study demonstrated that quercetin effectively treated alopecia areata and prevented its onset in a mouse model, suggesting potential for clinical applications in managing the condition.

This study developed and validated a 50-item questionnaire, the PCOSQ-50, to effectively assess the quality of life in Iranian women with polycystic ovary syndrome, addressing aspects often missed by previous questionnaires.

In this study, quercitrin was reported to promote hair growth and cell viability in cultured human dermal papilla cells by enhancing cellular energy metabolism and growth factor production via MAPK/CREB signaling.

This study found that quercitrin, a natural compound, enhances Wnt/β-catenin signaling and may help mitigate synapse loss and memory impairment in Alzheimer's models.

This study found that a new quercetin-loaded self-nanoemulsifying drug delivery system improved quercetin bioavailability by 149.8% compared to its suspension in rats.

This study found that quercetin increased melanin production in hair follicle tissues from C3H/HeN Jel mice, correlating with higher levels of tyrosinase protein and TRP-2 protein expression.

This study provided the first published case reports of alopecia associated with the use of quetiapine.

This study concludes that phospholipid–polymer hybrid nanoparticles may be an effective delivery system for quercetin in treating androgenic alopecia by improving hair regrowth and preventing hair follicle cell apoptosis in rat models.

This study successfully developed a method to measure four flavonoids from Platycladus orientalis leaves in rat plasma, which was used in a pharmacokinetic study on healthy rats.

This review categorizes 59 modifications of the Dermatology Life Quality Index across multiple studies, highlighting the need for further validation of these customized health-related quality of life tools in dermatology.

In this study, topical quercetin was found to stimulate hair follicle growth and promote microvascular regrowth in mice, suggesting its potential for hair regrowth strategies.

This review examines the potential therapeutic effects and mechanisms of quercetin for treating polycystic ovary syndrome, noting improved clinical parameters in some studies but presenting no new results.

This review explores nano-quercetin formulations to enhance the solubility, stability, and targeted delivery of quercetin, highlighting its potential efficacy in treating cancer, inflammation, metabolic diseases, and tissue regeneration, though challenges in biocompatibility, toxicity, and production remain, per this source.

This study found that phenolic compounds from Quercus acutissima, particularly casuarinin, showed strong antioxidative, anti-inflammatory, and antiacne effects in mouse macrophage cells, suggesting potential therapeutic candidates for acne.

This case study describes a child with severe cicatricial alopecia that began at birth and progressed rapidly, making treatment results disappointing.

This case report describes a 72-year-old man who developed symptoms of fatigue and cold intolerance after discontinuing his levothyroxine treatment for hypothyroidism six months earlier.

This report describes the first known case of alopecia in a 16-year-old patient associated with quetiapine use, which resolved after stopping the medication.

This research reports that copper-quercetin complexes show strong potential in antioxidation and cancer therapy, while their effects on specific cell death pathways warrant further investigation.

This study found that finasteride treatment was effective for male pattern alopecia and that hair loss significantly impacted patients' quality of life and psychological well-being.

In this study, researchers developed a nanocomposite microneedle patch containing copper/zinc dual-doped silica nanoparticles, which release substances to promote hair follicle regeneration by targeting various pathophysiological aspects of androgenic alopecia, presenting an effective anti-hair loss treatment strategy.

This study evaluated quercetin's potential as a treatment for cats with Feline Atopic Skin Syndrome, finding it significantly reduced clinical scores in certain symptom groups like Head-and-Neck Pruritus and Miliary Dermatitis, although improvements in oxidative stress markers were not clearly significant.

This report documents a rare case of alopecia universalis in an HIV-positive patient in Portugal, highlighting the changing comorbidity spectrum in this population due to increased life expectancy from antiretroviral therapy.

In this study, the authors concluded that post-dengue telogen effluvium is a common but underdiagnosed condition causing temporary hair loss, primarily affecting young women, with significant emotional impacts such as anxiety and decreased self-esteem.

This review explores quercetin's potential in multifunctional theranostic systems, highlighting its bioactivity and the challenges of improving its clinical application through innovative strategies like nanoencapsulation, while noting that research in this area is underdeveloped.

In this study, quercetin nanocrystals stabilized with glycyrrhizic acid were developed as a new treatment strategy for androgenetic alopecia, which significantly reduced DHT levels and improved hair regrowth in a mouse model, indicating synergistic potential for clinical application.

This study developed a quercetin-encapsulated and polydopamine-integrated nanosystem that reshapes the perifollicular microenvironment, showing potential for rescuing hair follicle viability and regenerating hair follicles in androgenic alopecia by scavenging reactive oxygen species and promoting angiogenesis.

This source provides an overview of quercetin's therapeutic capabilities in skin wound healing, highlighting its antioxidant and anti-inflammatory benefits but noting its poor solubility limits skin penetration; various delivery strategies have been explored to enhance its effectiveness.