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Glossary Horizontal Sections

method of cutting tissue samples parallel to the surface

Horizontal sections refer to a method used in histology, particularly in the study of hair and skin, where tissue samples are cut parallel to the surface. This technique allows for the examination of the entire hair follicle structure at different depths, providing a comprehensive view of hair growth patterns, follicle density, and potential abnormalities. It is especially useful in diagnosing conditions like alopecia, as it can reveal detailed information about the hair growth cycle and follicular health.

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Research

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research Diagnostic and predictive value of horizontal sections of scalp biopsy specimens in male pattern androgenetic alopecia

309 citations , May 1993 in “Journal of The American Academy of Dermatology”

This study concluded that horizontal sections of scalp biopsy specimens provide more diagnostic information for male pattern androgenetic alopecia than vertical sections and can predict hair regrowth potential following topical minoxidil therapy.

research The histopathology of alopecia areata in vertical and horizontal sections

19 citations , December 2001 in “Dermatologic Therapy”

This study reports that horizontal sections of scalp biopsies improve the diagnosis of alopecia areata, especially when characteristic inflammatory infiltrates are missing.

research A Comprehensive Approach to Hair Pathology of Horizontal Sections

12 citations , June 2013 in “The American Journal of Dermatopathology”

This study reported that using photomnemonics facilitated accurate histopathologic interpretation of horizontal scalp sections in distinguishing between nonscarring and scarring alopecias by dermatopathologists and residents in a validation test.

research Utility of Horizontal Sections of Scalp Biopsies in Differentiating between Androgenetic Alopecia and Alopecia Areata

3 citations , January 2018 in “Dermatology”

This study found that transverse sections of scalp biopsies, particularly looking at the anagen:non-anagen hair ratio and presence of pigment casts, effectively distinguish alopecia areata from androgenetic alopecia.

research Pattern hair loss: Assessment of microinflammation in miniaturized and terminal hair follicles through horizontal histologic sections

11 citations , April 2020 in “Journal of The American Academy of Dermatology”

This commentary reviews the evidence for microinflammation's role in pattern hair loss and suggests that further studies with age- and sex-matched controls are needed to substantiate the findings.

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community long hair + minoxidil spray, how do you actually cover the whole scalp?

7 upvotes 1 month ago

The conversation discusses applying minoxidil for hair loss, with users suggesting using a dropper or oral minoxidil instead of spray for better scalp coverage. Techniques like using a comb or applicator comb are recommended for more effective application.

community Comprehensive Microneedling Guide

292 upvotes 4 years ago

Microneedling for hair restoration involves daily use of a 0.3 mm device and weekly use of a 0.5 mm device. Combining microneedling with Minoxidil can enhance hair growth.

community Regrowth after 9 months of DHT blockers, and 6 months of HRT

in Transgender 24 upvotes 10 months ago

A 20-year-old saw significant hair regrowth after 9 months of using DHT blockers (finasteride and dutasteride) and 6 months of hormone replacement therapy (HRT) with estradiol. The regrowth is attributed to low testosterone and high estradiol levels, without using Minoxidil.

community Daily Mail article - How I REVERSED my balding. My barber called my thick head of hair a 'miracle'... this is exactly how I did it:

in Finasteride/Dutasteride 1 upvotes 1 year ago

Finasteride and a hair transplant were used to reverse hair loss, leading to thicker hair and increased confidence. The user received compliments on their improved appearance.

community My microneedling journey (no min, fin, etc)

in Microneedling 210 upvotes 1 year ago

The user experienced positive hair growth results using microneedling with rosemary and mint oil, without Minoxidil, Finasteride, or RU58841. They switched from a dermaroller to a microneedling pen and targeted different scalp areas weekly.

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