research The Microanatomy, Cell Replication, and Keratin Gene Expression of Hair Follicles during a Photoperiod-lnduced Growth Cycle in Sheep
Changing light periods synchronized wool growth cycles in sheep.
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210-240 / 1000+ resultsresearch Is it getting in the hair? – Cortisol concentrations in native, regrown and segmented hairs of cattle and pigs after repeated ACTH administrations
Hair cortisol is a reliable stress indicator in cattle but may not be valid for pigs.
research Studies on the persistence of estradiol benzoate and nortestosterone decanoate in hair of cattle following treatment with growth promoters, determined by ultra-high-performance liquid chromatography–tandem mass spectrometry
Detecting steroid esters in cattle hair is inconsistent and influenced by sampling factors.
research A model system for long-term serum-free suspension organ culture of human fetal tissues: experiments on digits and skin from multiple body regions
Scientists developed a method to grow human fetal skin and digits in a lab for 3-4 weeks, which could help study skin features and understand genetic interactions in tissue formation.
research Approach to androgen excess in women: Clinical and biochemical insights
The document concludes that a systematic approach is crucial to identify causes of androgen excess in women beyond the most common cause, Polycystic ovary syndrome (PCOS).
research Hirsutism in the Adolescent Female
The conclusion is that young women with excessive hair growth should be quickly tested for hormonal issues and treated to improve their social well-being.
research Within-person changes of cortisol, dehydroepiandrosterone, testosterone, estradiol, and progesterone in hair across pregnancy, with comparison to a non-pregnant reference group
Hormone levels in hair change during pregnancy, with progesterone increasing significantly compared to non-pregnant women.
research Age-related changes in endogenous glucocorticoids, gonadal steroids, endocannabinoids and their ratios in plasma and hair from the male C57BL/6 mice
Male C57BL/6 mice show age-related fluctuations in certain hormones and their ratios in both blood and hair.
research Pelage cycle in blue fox(Alopex lagopus):A comparison between animals born early and late in the season
Blue foxes born later in the season have a slightly delayed fur growth cycle, but it catches up by mid-November.
research Enzyme-linked immunosorbent assays for doping control of 5α-reductase inhibitors finasteride and dutasteride
New tests detect finasteride and dutasteride in urine quickly and easily.
research Progressive expression of PPARGC1α is associated with hair miniaturization in androgenetic alopecia
Increased PPARGC1α relates to hair thinning in common baldness.
research Giant Cells in Male Pattern Alopecia: a Histologic Marker and Pathogenetic Clue
Giant cells found in some male pattern baldness cases may help diagnose it and suggest hair is mistakenly seen as foreign by the body.
research Exploring Reference Values for Hair Cortisol
Hair sample weight is a better measure for cortisol levels in hair than hair protein concentration.
research Forensic Analysis of Hair by Infrared Spectroscopy
Infrared spectroscopy can analyze hair for forensic and medical insights.
research A Novel Hair Analysis for Trace Elements on Hair Cross Section by Synchrotron Radiation X‐Ray Fluorescence Imaging with X‐Ray Microprobe: Two‐Dimensional Distribution of Lead and Zinc on Smelter Hair
The method effectively maps lead and zinc in hair, aiding understanding of heavy metal exposure risks.
research Assessment of hair and cashmere properties and their genetic background of several goat breeds in Southwest China
Crossbreeding improves goat fiber quality, and specific genes affect hair traits and color.
research UPLC-MS/MS method for the simultaneous quantification of caffeine and illicit psychoactive drugs in hair using a single-step high-speed grinding extraction – Insights into a cut-off value for caffeine abuse
The conclusion is that a new method can measure caffeine and drugs in hair, finding caffeine abusers have 70 times more caffeine than normal, with a proposed cut-off value for abuse.
research A Non-Invasive Hair Test to Determine Vitamin D3 Levels
The hair test for vitamin D could be a useful alternative to blood tests, providing a longer-term vitamin D status, but more research is needed.
research 5α‐reductase inhibitors: Evaluation of their potential confounding effect on GC‐C‐IRMS doping analysis
5α-reductase inhibitors can interfere with doping tests by masking banned substances.
research Serum-Based Assessment of Alopecia Areata Response to Treatment Using ATR-FTIR Spectroscopy
ATR-FTIR spectroscopy could help monitor alopecia areata treatment response non-invasively.
research Matrix matching in quantitative bioanalysis by LC–MS/MS a dream or a reality?
Accurate quantitative bioanalysis using LC-MS/MS is challenging due to matrix effects, but using internal standards and new methods like in-sample calibration could improve results.
research An Ayurvedic Approach to Palitya (Premature Greying of Hair)
Ayurveda suggests holistic methods to address premature greying of hair.
research Seasonal Variability in Transcript Expression of Type I and Type II Keratins in Wool Follicles of Lustrous Fleece-Producing Magra Sheep
Higher keratin protein levels are important for the wool's shine in Magra sheep.
research Epidermal/Dermal Separation Techniques and Analysis of Cell Populations in Human Skin Sheets
Choosing the right method to separate skin layers is key for good skin cell research.
research The 39th Manfred Donike workshop on doping analysis
The 39th Manfred Donike Workshop discussed methods for detecting misuse of steroids, gene doping, and the complexity of identifying drug residues in urine, highlighting the ongoing efforts to improve global anti-doping work.
research The investigation of feline alopecia
Cats lose hair due to itching or health issues, needing various tests for diagnosis.
research FGF9 for baldness
Increasing the levels of a protein called FGF9 can promote hair growth, but humans may not respond the same way due to a lack of certain cells.
research Probing calcium and sulfur distribution and pattern in hairs using micro-proton induced X-ray emission （MPIXE）
Women's hair has more sulfur, and black hair has more calcium than white hair.
research Reproducibility package for an auditable exploratory re-analysis of miRNA dysregulation and aging-related validated target enrichment in female pattern hair loss
The study provides exploratory findings on miRNA changes in female hair loss.
research Reproducibility package for an auditable exploratory re-analysis of miRNA dysregulation and aging-related validated target enrichment in female pattern hair loss
The package offers tools for exploring potential miRNA changes in female hair loss.