Skin of color representation in cosmetic clinical trials: A literature review.

Despite cosmetic procedures being on the rise in the US in all demographics, cosmetic procedures remain heavily skewed towards non-skin of color patients. Cosmetic clinical trials in the United States must be representative of the ever-increasing diversity of the US population. We sought to analyze published cosmetic randomized controlled trials, both industry-sponsored and investigator-initiated, to characterize and assess representation of skin of color participants over the past three decades. Our study shows that industry sponsorship correlates with poor study participant ethnic/racial diversity in aesthetic randomized controlled trials, and should serve as a call to action for industries to increase the inclusion of skin of color participants in their studies.

Hair transplantation in the surgical treatment of central centrifugal cicatricial alopecia.

BACKGROUND: Central centrifugal cicatricial alopecia (CCCA) is a progressive primary scarring alopecia that occurs mainly on the vertex of the scalp and expands centrifugally. To date, there is a paucity of published prospective studies reporting successful surgical therapy for CCCA. OBJECTIVE: To evaluate the efficacy of hair transplantation using the round (punch) grafting technique in African American women with CCCA. MATERIALS AND METHODS: We describe 2 African American female patients with CCCA who had endured nearly 5 to 6 years of progressive hair loss on the crown of the scalp. After a scalp biopsy and hair transplant test session, both patients underwent hair transplantation with the use of round grafts. Digital photographs were obtained before and after hair transplantation to determine the hair growth success and response rates. RESULTS: Hair growth was visibly observed at the recipient sites in both patients beginning between 4 to 5 months post-test session. No postoperative scarring in the recipient or donor areas of the scalp were noted in either patient. CONCLUSION: Hair transplantation is a safe well-tolerated procedure to improve hair loss in African American women with end-stage CCCA who histologically display a lack of inflammation on scalp biopsy.

Are we too cavalier about antiviral prophylaxis?

Herpes simplex virus (HSV) prophylaxis may be underutilized in cosmetic surgery at a time when cosmetic procedures are increasing. Our goal is to review the data regarding HSV prophylaxis in order to remind cosmetic surgeons when to consider adding this regimen to their patient perioperative care.

Hair and scalp disorders in ethnic populations.

Human hair has been classified into 3 major groups, as determined by ethnic origin. In these populations, significant structural and biochemical variations of the hair follicle and shaft are seen, as well as unique hair grooming practices. These structural variations of the hair are closely linked to the common disorders of the hair and scalp, such as acquired trichorrhexis nodosa, seborrheic dermatitis, traction alopecia, central centrifugal cicatricial alopecia, dissecting cellulitis, frontal fibrosing alopecia, and pseudofolliculitis barbae.

Feline calicivirus VP2 is essential for the production of infectious virions.

The third open reading frame (ORF3) located at the 3' end of the genomic RNA of feline calicivirus (FCV) encodes a small (12.2-kDa) minor structural protein of 106 amino acids designated VP2. Point mutations and deletions were introduced into an infectious FCV cDNA clone in order to evaluate the functional importance of ORF3 and its encoded protein, VP2. Deletion of the entire ORF3 sequence was lethal for the virus, and evidence was found for strong selective pressure to produce the VP2 protein. Extended deletions in the 5' end and small deletions in the 3' end of ORF3, as well as the introduction of stop codons into the ORF3 sequence, were tolerated by the viral replication machinery, but infectious virus could not be recovered. Infectious virus particles could be rescued from a full-length FCV cDNA clone encoding a nonfunctional VP2 when VP2 was provided in trans from a eukaryotic expression plasmid. Our data indicate that VP2, a protein apparently unique to the caliciviruses, is essential for productive replication that results in the synthesis and maturation of infectious virions and that the ORF3 nucleotide sequence itself overlaps a cis-acting RNA signal at the genomic 3' end.