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In this study, plucked rat hair showed greater accumulation of injected radioisotopes than shaved hair, which may have implications for measuring exposure and understanding follicle tissue processes.

This review explores how copper and zinc concentrations in hair may serve as bioindicators and discusses their potential associations with health disorders, but it reports no new clinical findings.

This study found that microbial transformation of dihydrotestosterone with two types of fungi produced eight metabolites, among which metabolites 5–7 were significant inhibitors of butyrylcholinesterase, suggesting potential in Alzheimer's disease management.

Researchers developed a method to detect hormone-blocking drugs in wastewater and found them in Beijing's sewage, suggesting they can survive sewage treatment.

This study found that increasing a drug's lipophilicity and adding ethanol to the donor phase can enhance its delivery to the hair follicle, although the precise transport mechanism remains unclear.

This study found a negative correlation between lead and calcium levels in the scalp hair and finger nails of exposed and unexposed males, with variations suggesting these tissues can reflect metabolic changes over time.

This study found that hair cortisol concentration in free-ranging brown bears is influenced by handling methods, body condition, and potentially both short- and long-term stressors.

This article presents a biochemical model to explain how drug molecules are incorporated into hair, highlighting factors such as drug melanin affinity and the role of physico-chemical properties.

This study demonstrates that bacteria contribute to hair follicle neogenesis after skin wounding through IL-1R1 signaling in keratinocytes.

In this study, sows fed a diet with added biotin weaned more pigs per litter overall, though other reproductive and health metrics showed no improvement.

This study found that moose hair can effectively monitor previous mineral states for most elements, except zinc, and mineral uptake differs between male and female moose.

This review examines recent advancements in green and emerging microextraction techniques, such as SPME and DLLME, for more sustainable hormone detection in biological samples, emphasizing environmentally friendly solvents and bioanalytical applications.

This study developed and validated a sensitive liquid chromatography–mass spectrometry method to measure aristolochic acid‐I in rat plasma, successfully applying it to pharmacokinetic research.

This review provides an overview of biotin's role in metabolism and the consequences of deficiency but reports no new clinical findings; it highlights that intestinal bacteria usually meet biotin needs.

This report describes two cases of chronic arsenicism, one involving criminal poisoning by a sibling and the other associated with prolonged use of Fowler's solution.

This review discusses the history and development of techniques for detecting bioelectromagnetic emissions in living tissue and reports no new experimental results; potential medical applications are explored.

This study found that fentanyl accumulates differently in mouse hair after systemic administration compared to external loading, suggesting ionizable functionalities of hair influence drug retention from organic solutions.

This article discusses the importance of considering biotinidase deficiency in differential diagnosis for patients with certain neurological and dermatological symptoms, as timely treatment with biotin is crucial to prevent severe consequences.

This letter to the editor describes a case of anagen effluvium due to thallium poisoning from Chinese herbal medicine and rodenticide but reports no new research findings.

This study suggests that increased use of anticancer drugs from 2004 to 2008 has led to higher environmental release, necessitating expanded monitoring and research on their ecotoxicological impacts.

This study found that Quantitative Mass Spectrometry Imaging offers precise localization and quantification of active compounds in skin tissues, demonstrating benefits over traditional LC-MS in drug penetration studies.

This study documented three cases of acute thallium poisoning—one involving accidental overdose and two linked to intentional homicide—characterized by neurological and systemic symptoms, and in severe instances, death, underscoring thallium compounds' significant toxicity.

This study found that Carbon Quantum Dots effectively detected and quantified Co²⁺ ions and methylcobalamin in tap water with high sensitivity and recovery rates between 95% and 105%.

In this study, researchers observed that TCDD exposure in mice enhanced sebaceous gland differentiation and lipid production before causing seboatrophy, providing insights into the cellular events that may contribute to chloracne pathogenesis.

This study observed that exposure to heavy metal salts affected skin and hair morphology in mice, with lead acetate decreasing keratinocyte proliferation and zinc sulfate and sodium dichromate increasing it.

This case study reports that prolonged high-dose vitamin A intake led to multiple adverse health effects in a young man, which mostly resolved after stopping the supplement, although liver changes persisted.

This study found that patients with tropical chronic pancreatitis exhibited significantly reduced plasma amino acid levels and antioxidant capacity, with folate deficiency identified as a key factor in hyperhomocysteinemia.

This study found that purified humic acids from oxidized coal enhance plant growth by modulating oxidative stress and influencing photobiological processes, with improved root growth and enzyme activity linked to antioxidant and pro-oxidant properties.

This study found that enzyme activity critical to cancer induction by polycyclic aromatic hydrocarbons in human hair follicles increased after using a crude coal tar-containing shampoo for four days and was substantially inhibited by imidazole compounds.

This study found that treatment with Bacillus amyloliquefaciens UCMB5113 significantly increased root hair growth in half of the tested Arabidopsis thaliana accessions.