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GlossaryPolydispersity Index (PDI)

measure of molecular size distribution in a polymer sample

The Polydispersity Index (PDI) is a measure of the distribution of molecular mass in a given polymer sample. It indicates how uniform or varied the sizes of the molecules are within the sample. A PDI value close to 1 suggests a uniform molecular size, while higher values indicate a broader range of molecular sizes. This term is particularly important in fields like materials science and biochemistry, where the consistency of molecular size can impact the properties and behavior of materials or biological molecules.

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research Protein Disulfide Isomerase-Mediated Grafting of Cysteine-Containing Peptides onto Over-Bleached Hair

28 citations, December 2011 in “Biocatalysis and biotransformation”

PDI helps restore over-bleached hair's strength and structure by attaching special peptides.

Premature Desquamation of the Inner Root Sheath in Noninflamed Hair Follicles as a Specific Marker for Central Centrifugal Cicatricial Alopecia

research Premature Desquamation of the Inner Root Sheath in Noninflamed Hair Follicles as a Specific Marker for Central Centrifugal Cicatricial Alopecia

6 citations, December 2018 in “The American Journal of Dermatopathology”

Early shedding of the inner root sheath in noninflamed hair follicles is a relatively specific sign of Central Centrifugal Cicatricial Alopecia.

research Sodium Valproate for Painful Peripheral Neuropathy in Diabetic Patients

September 2018 in “Practical diabetes”

Sodium valproate is not recommended as a first-line treatment for neuropathy but may be used in resistant cases.

research Polycystic Ovary Syndrome: Diagnosis, Symptoms, and Management

8 citations, September 2005 in “Practical diabetes”

PCOS is a condition causing irregular periods, excess male hormones, and infertility, often managed by targeting insulin resistance and specific symptoms.

research Pimples and Pustules in Diabetes

September 2018 in “Practical diabetes”

People with diabetes have a higher risk of skin infections and complications.

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community New and Interesting HairLoss Studies/Papers/Reviews

in Treatment 41 upvotes 5 years ago

Hair loss treatments discussed include Dutasteride with Ketoconazole, tissue engineering strategies, and androgenetic alopecia therapies. Massage doubles follicular retention, improving treatment effectiveness.