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    Glossary Medulla

    innermost layer of a hair strand, often spongy

    The medulla is the innermost layer of a hair strand, often composed of soft, spongy cells. While its presence and structure can vary among different hair types and species, it generally plays a role in the hair's overall strength and flexibility.

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    1. Type II Epithelial Keratin 6hf (K6hf) Is Expressed in the Companion Layer, Matrix, and Medulla in Anagen-Stage Hair Follicles Journal of Investigative Dermatology · 2003 · 60 citations
    2. Panax ginseng prevents apoptosis in hair follicles and accelerates recovery of hair medullary cells in irradiated mice. PubMed · 1998 · 22 citations
    3. Relative studies between hair index, hair area, and medullary index with age and sex in Thai scalp hair Forensic science international · 2016 · 9 citations
    4. Analysis of Lipids in the Medulla of Japanese Hair and Their Function Cosmetics · 2018 · 7 citations
    5. Ultrastructural immunolocalization of involucrin in the medulla and inner root sheath of the human hair Annals of anatomy · 2011 · 7 citations
    6. Medulla loss of scalp hair in breast cancer patients determined by near-infrared microscopy Journal of Biomedical Optics · 2019 · 4 citations
    7. [Contribution to hair medulla study (author's transl)]. PubMed · 1981 · 4 citations
    8. New Aspects of the Structure of Human Scalp Hair-II: Tubular Structure and Material Flow Property of the Medulla. PubMed · 2019 · 1 citations
    9. ABSENCE OF H2O2 BREAKDOWN IN HUMAN HAIR MEDULLA IMPLICATIONS IN FOLLICULAR MELANOGENESIS International journal of research - granthaalayah · 2018 · 1 citations
    10. Faculty Opinions recommendation of The keratins of the human beard hair medulla: the riddle in the middle. Faculty Opinions – Post-Publication Peer Review of the Biomedical Literature · 2010
    11. Cardiac and Medullary Neuroinflammatory Pathways Trigger Androgenic Incitement of Cardiovascular Sequels of Endotoxemia in Rats The FASEB Journal · 2020
    12. ABO Blood Grouping of Non-medullated Scalp Hair Using Immunohistochemical Staining Nihon Hou Kagaku Gijutsu Gakkaishi · 2010
    13. Case 5: A Very Tall 7-year-old Boy with Medulloblastoma Pediatrics in review · 2018 · 1 citations
    14. Morphogenesis and maintenance of the 3D thymic medulla and prevention of nude skin phenotype require FoxN1 in pre- and post-natal K14 epithelium Journal of molecular medicine · 2010 · 21 citations
    15. Vitamin D activates type A natriuretic peptide receptor gene transcription in inner medullary collecting duct cells Kidney international · 2007 · 17 citations
    16. Characterization of Hair Follicles in Hirosaki Hairless Rats with Deletion of Basic Hair Keratin Genes. Enlarged Medulla, Loss of Cuticle and Long Catagen Hirosaki University Repository for Academic Resources (Hirosaki University) · 2009 · 3 citations
    17. A New Approach to Obtain Attractive Hair: Hair Medulla Care Journal of Society of Cosmetic Chemists of Japan · 2023 · 2 citations
    18. Cerebellar Medulloblastoma: Treatment by Irradiation of the Whole Central Nervous System Acta Radiologica · 1953 · 1 citations
    19. Hair Medulla and its variations in Doshaja Prakruti – An observational study International Journal of Ayurvedic Medicine · 2025
    20. CASE REPORT: SCABIES WITH NORMOCYTIC NORMOCHROMIC ANEMIA AND ABNORMALITIES IN THE HAIR MEDULLA IN DOMESTIC CATS VITEK Bidang Kedokteran Hewan · 2024
    21. Cerebellar Medulloblastoma: Treatment by Irradiation of the Whole Central Nervous System Acta radiologica · 1953 · 163 citations
    22. Chemotherapy for children with medulloblastoma Cochrane library · 2015 · 39 citations
    23. Epigenetic Regulation of Medulloblastoma Proliferation by Finasteride-Induced Modulation of BTG2 and CD244 Gene Methylation 2023
    24. The Keratins of the Human Beard Hair Medulla: The Riddle in the Middle 2009 · 87 citations
    25. Keratins of the human occipital hair medulla: androgenic regulation of<i>in vitro</i>hair keratin K37 expression British Journal of Dermatology · 2013 · 6 citations
    26. Nanoindentation of Hair Cortex and Medulla Regions 2019 · 3 citations
    27. Vandetanib-associated alopecia areata in a patient with metastatic medullary thyroid cancer International Journal of Dermatology · 2014 · 1 citations
    28. Regenerative Versus Nonregenerative Repair of the Renal Medulla After Reversal of Ureteral Obstruction Seminars in Nephrology · 2025
    29. HAIR-LOSS AS DEFICIENCY TEST OF MEDULLECTOMY IN RATS Journal of Endocrinology · 1940 · 96 citations
    30. Corrections to: "The Keratins of the Human Beard Hair Medulla: The Riddle in the Middle" Journal of Investigative Dermatology · 2010