scholarly journals Conflicting Reports Regarding the Histopathological Features of Androgenic Alopecia: Are Biopsy Location, Hair Diameter Diversity, and Relative Hair Follicle Miniaturization Partly to Blame?

2021 ◽  
Vol Volume 14 ◽  
pp. 357-365
Author(s):  
Robert English ◽  
Sophia Ruiz
2018 ◽  
Vol 2018 ◽  
pp. 1-16 ◽  
Author(s):  
Agnieszka Owczarczyk-Saczonek ◽  
Magdalena Krajewska-Włodarczyk ◽  
Anna Kruszewska ◽  
Łukasz Banasiak ◽  
Waldemar Placek ◽  
...  

Alopecia is caused by a variety of factors which affect the hair cycle and decrease stem cell activity and hair follicle regeneration capability. This process causes lower self-acceptance, which may result in depression and anxiety. However, an early onset of androgenic alopecia is associated with an increased incidence of the metabolic syndrome and an increased risk of the cardiac ischaemic disease. The ubiquity of alopecia provides an encouragement to seek new, more effective therapies aimed at hair follicle regeneration and neoregeneration. We know that stem cells can be used to regenerate hair in several therapeutic strategies: reversing the pathological mechanisms which contribute to hair loss, regeneration of complete hair follicles from their parts, and neogenesis of hair follicles from a stem cell culture with isolated cells or tissue engineering. Hair transplant has become a conventional treatment technique in androgenic alopecia (micrografts). Although an autologous transplant is regarded as the gold standard, its usability is limited, because of both a limited amount of material and a reduced viability of cells obtained in this way. The new therapeutic options are adipose-derived stem cells and stem cells from Wharton’s jelly. They seem an ideal cell population for use in regenerative medicine because of the absence of immunogenic properties and their ease of obtainment, multipotential character, ease of differentiating into various cell lines, and considerable potential for angiogenesis. In this article, we presented advantages and limitations of using these types of cells in alopecia treatment.


Author(s):  
Samoylova A.V. ◽  
Snimshchikova I.A. ◽  
Plotnikova M.O. ◽  
Yakushkina N.Y.

Alopecia is a common pathology among the active population, which leads not only to cosmetic defects, but also to the development of somatic diseases against the background of traumatic effects and chronic stress. The pathogenetic mechanisms of hair follicle formation are complex and diverse, since numerous factors, including the components of the Wnt signaling pathway, have an effect on its morphogenesis, the study of which is the subject of this study. The search for possible early markers of the development of alopecia led to interest in the study of the main morphogenic proteins of WNT - the signaling pathway (one of the intracellular signaling pathways, which control the development of blood vessels, as well as the growth and division of hair follicle cells) sclerostin and β-catenin among patients with androgenic and alopecia areata. The article presents data on the quantitative content of β-catenin and sclerostin in the blood serum in patients with androgenic and alopecia areata. Their possible pathways of complex interaction and influence on the morphogenesis of the hair follicle and the activity of the Wnt-signaling pathway have been analyzed, and the relationship between changes in the level of morphogenic proteins of the WNT-signaling pathway with sex and the course of the disease has been described. Establishment of the prognostic role of morphogenic proteins of the WNT signaling pathway in androgenic and alopecia areata will allow not only identify the personal risk of disease progression and to determine approaches to targeted therapy, but to develop and introduce updated diagnostic screening into dermatological practice.


2014 ◽  
Vol 14 (2) ◽  
pp. 97-100
Author(s):  
Effat Khodaeiani ◽  
Shahla Babaeinejad . ◽  
Mahsa Jamshidi Asl . ◽  
Elham Razzagh Karimi . ◽  
Daniel F. Fouladi . ◽  
...  

Author(s):  
Ruxandra Dobrescu ◽  
Catalina Picu ◽  
Sorina Schipor ◽  
Adriana Padure ◽  
Liliana Parvu ◽  
...  

2018 ◽  
Author(s):  
Suleyman Ipekci ◽  
Mehmet Sozen ◽  
Sedat Abusoglu ◽  
Suleyman Baldane ◽  
Fatma Akyurek ◽  
...  

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