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This study found that clippers are the safest and most efficient tool for collecting hair samples from companion dogs, with no impact on cortisol concentration compared to scissors.

Self-collected hair samples can measure stress but may need adjustments for accuracy.

This study observed that bacterial communities on scalp hair collected through non-invasive swabbing showed similar diversity and composition to those obtained by cutting or removing hair, suggesting that swabbing is an effective method for microbiome analysis on hair.

This study reports that transplanted mouse hair follicles restored piloerection ability and connected properly with host tissues, suggesting potential for advanced hair restoration therapies.

This study suggests moving away from using rigid racial categorizations and outdated typologies in favor of analyzing detailed trait patterns, providing a foundation for future research on human variation and hair traits in relation to population affinity.

This paper presents a culturally informed protocol designed to improve the collection of hair samples from African Americans for cortisol measurement, illustrating its application with community-based study data.

This study suggests that collecting hair samples from all scalp regions may be a viable alternative for measuring cortisol in individuals with Afro-textured or extremely short hair, aligning results with traditional methods.

Title change to "Central Centrifugal Cicatricial Alopecia (CCCA)"; common in African American women; hair-grooming methods may contribute; no effective therapy found; trials needed.

This source describes a collection of geometric medicine formulations aimed at comprehensive hair restoration and permanent hair removal, with claimed simulation results indicating complete baldness reversal and effective hair removal, but results are sourced from theoretical and simulation-based findings without reported clinical trials.

The researchers developed a new follicular unit extraction system with adjustable needle lengths and precise rotation speed, which they report as being superior to existing systems for non-incisional hair transplants.

This abstract describes a hair treatment series promising complete restoration of hair in cases of baldness and permanent hair removal, supported by theoretical formulations but without clinical result reports.

This study found that wire brush hair snares collected the most hair from Eurasian Lynx in controlled enclosures, suggesting potential for sampling genetic material from similar felid species.

This review discusses the role of the hairless protein (HR) in alopecia and cancer, noting its potential importance in cancer cell growth and survival, and reports no new experimental results.

This study observed that autologous platelet-rich plasma treatment improved hair count and density in areas with androgenetic alopecia compared to placebo, with differing outcomes based on the PRP collection device used.

This review highlights that human hair is a valuable biological matrix for clinical and toxicological analyses, demonstrating its applicability in detecting various active substances from different pharmacological classes.

This study found significant differences in the spread of sebum on hair among Chinese men with greasy and non-greasy scalps, despite similar sebum amounts at the root region post-shampoo.

This study details a step-by-step protocol for preparing mammalian skin samples, including hair follicles, for spatial transcriptomics to overcome challenges inherent in applying this technique to the skin.

This study observed that men with frontal and moderate vertex baldness between ages 40 and 50 had a higher risk of aggressive prostate cancer, suggesting a potential link between baldness pattern and cancer risk.

This case report describes a 43-year-old woman with achalasia, pangastritis, and hyperthyroidism, highlighting the rare association between achalasia and autoimmune conditions like hyperthyroidism.

This review evaluates hair growth measurement methods for human scalp hair, suggesting that combining highly resolutive analytical approaches with global calibrated methods is recommended for assessing hair changes in clinical settings.

This study found that lymphatic vessels in mice are important for hair follicle development and organization, as their depletion blocks hair growth.

This essay discusses hair loss due to head bone displacement and does not report new clinical results, building on the author's prior work regarding the natural process of growth-related changes.

This review highlights the importance of standardizing pre-analytical procedures for collecting and extracting samples from uncommon biological specimens like breast milk and sweat in clinical metabolomics, to enhance diagnostic and biomarker discovery efforts while minimizing contamination and bias.

This review presents standardized methods for assessing and tracking hair loss in alopecia areata but reports no clinical results, with the authors noting time limitations in clinical practice.

This study identified significant differences in cytokine levels between people with primary cicatricial alopecias and unaffected individuals, suggesting cytokines may play a role in the condition's autoimmune nature and management.

This review discusses the use of umbilical cord blood in regenerative medicine, focusing on collection, banking processes, and ethical considerations, without presenting new clinical results.

This study found that 70-MHz ultrasound can detect early signs of hidradenitis suppurativa linked to severity, including hair follicle abnormalities and keratin fragmentation, aiding in diagnosis and management.

This study found that a high-power triple-wavelength diode laser effectively and safely treated facial hirsutism and follicular disorders in individuals with darker skin tones, showing significant hair reduction without adverse events.

Telogen Effluvium is a hair loss condition where treatment involves identifying and managing its triggers.