Related Experiment Video

Updated: Feb 14, 2026

Mechanical and Controlled PRP Injections in Patients Affected by Androgenetic Alopecia
03:22

Mechanical and Controlled PRP Injections in Patients Affected by Androgenetic Alopecia

Published on: January 27, 2018

15.7K

A Meta-analysis On Evidence Of Platelet-rich Plasma for Androgenetic Alopecia

Salvatore Giordano1, Marco Romeo2, Pietro di Summa3

  • 1Department of Plastic and General Surgery, Turku University Hospital, University of Turku, Turku, Finland.

International Journal of Trichology
|February 15, 2018
PubMed
Abstract

Keywords:
Androgenetic alopeciahair growthhair restorationplatelet-rich plasma

More Related Videos

Platelet-Rich Plasma Lysate for Treatment of Eye Surface Diseases05:57

Platelet-Rich Plasma Lysate for Treatment of Eye Surface Diseases

Published on: August 2, 2022

5.1K
Production of Autologous Platelet-Rich Plasma for Boosting In Vitro Human Fibroblast Expansion08:34

Production of Autologous Platelet-Rich Plasma for Boosting In Vitro Human Fibroblast Expansion

Published on: February 24, 2021

3.0K

Related Concept Videos

The Evidence for Evolution02:55

The Evidence for Evolution

Genetic variations accumulating within populations over generations give rise to biological evolution. Evolutionary changes can result in the formation of novel varieties and entire new species. These changes are responsible for the diverse forms of life inhabiting the planet. The evidence for evolution suggests that all living organisms descended from common ancestors.
48.4K
Directing Effect of Substituents: meta-Directing Groups01:09

Directing Effect of Substituents: meta-Directing Groups

Substituents on the benzene ring that direct an incoming electrophile to undergo substitution at the meta position are called meta directors. All meta directors either have a positive charge on the atom directly bonded to the ring or a partial positive charge. These groups function by withdrawing electrons from the ring through inductive and resonance effects. Consider the carbocation intermediates formed upon the addition of an electrophile on nitrobenzene at the...
6.1K
Structure and Function of Platelets01:18

Structure and Function of Platelets

The cell fragments known as platelets are disc-shaped, with an average diameter of about 3 μm and a thickness of roughly 1 μm. They play a crucial role in the body's vascular clotting system, which also involves plasma proteins, blood cells, and blood vessel tissues.
Platelets are continually replenished, circulating in the bloodstream for 9-12 days before being removed by phagocytes, primarily in the spleen. A microliter of circulating blood contains between 150,000 and 450,000...
3.8K
Formation of the Platelet Plug01:22

Formation of the Platelet Plug

The platelet phase, the second stage of hemostasis, commences around 15-20 seconds after an injury. It follows and overlaps with the vascular phase, during which blood vessels constrict to minimize blood loss.
As the injured blood vessel contracts, endothelial cells undergo contraction, revealing collagen fibers in the basement membrane and underlying connective tissue. Furthermore, the plasma membrane of endothelial cells becomes adhesive, preparing the site for platelet adhesion. Platelets...
9.6K
Composition of Blood Plasma01:24

Composition of Blood Plasma

Blood plasma is a fluid that contains approximately 92% water and 8% solutes. The solutes include various types of proteins, which constitute about 7% of the total solutes in the plasma. The high-molecular-weight proteins—albumins, globulins, and fibrinogen—are essential to plasma function. Albumins, making up about 60% of the plasma proteins, maintain the osmotic balance within blood vessels by preventing excessive water leakage. Additionally, albumins serve as carrier proteins,...
9.0K
meta-Directing Deactivators: –NO2, –CN, –CHO, –⁠CO2R, –COR, –CO2H01:13

meta-Directing Deactivators: –NO2, –CN, –CHO, –⁠CO2R, –COR, –CO2H

All meta-directing substituents are deactivating groups. These substituents withdraw electrons from the aromatic ring, making the ring less reactive toward electrophilic substitution. For example, the nitration of nitrobenzene is 100,000 times slower than that of benzene because of the deactivating effect of the nitro group. The first step in an electrophilic aromatic substitution is the addition of an electrophile to form a resonance-stabilized carbocation. The energy diagrams for...
6.8K