[PDF][PDF] Pharmacology of hormonal contraceptives and acne

K O'Connell, C Westhoff - Cutis, 2008 - cdn.mdedge.com
5α-reductase activity. The exact mechanism by which OCs reduce androgen production by
the adrenal glands is not known, though it has been demonstrated with radioimmune …

Inhibition of skin 5α-reductase by oral contraceptive progestins in vitro

T Rabe, A Kowald, J Ortmann… - Gynecological …, 2000 - Taylor & Francis
Androgenic disorders of female skin such as hirsutism, acne and alopecia are etiologically
caused by androgen excess. Skin 5α-reductase activity is a major factor influencing the …

Effects of Sex Steroids on Skin 5α Reductase Activity In Vitro

DL CASSIDENTI, RJ PAULSON… - Obstetrics & …, 1991 - journals.lww.com
Abstract Skin 5 [alpha]-reductase activity is the major factor influencing the manifestation of
androgen excess. Although oral contraceptives have been useful for the treatment of …

Effect of low-dose oral contraceptives on androgenic markers and acne

IH Thorneycroft, FZ Stanczyk, KD Bradshaw… - Contraception, 1999 - Elsevier
Oral contraceptives (OC) suppress excess androgen production; however, different
progestins in combination with low-dose estrogens produce divergent effects on sex …

Oral contraceptives as anti-androgenic treatment of acne

A Lemay, Y Poulin - Journal of Obstetrics and Gynaecology Canada, 2002 - Elsevier
Although acne is seldom associated with high serum levels of androgens, it has been shown
that female acne patients have definite increases in ovarian and adrenal androgen levels …

Oral contraceptives in the treatment of acne.

JK Tan, H Degreef - Skin Therapy Letter, 2001 - europepmc.org
Oral contraceptives (OCs) can reduce acne by lowering the production of adrenal and
ovarian androgens, by inhibiting 5-alpha-reductase, which in turn, reduces the levels of …

Immunolocalization of 5α-reductase isozymes in acne lesions and normal skin

D Thiboutot, E Bayne, J Thorne, K Gilliland… - Archives of …, 2000 - jamanetwork.com
Background Dihydrotestosterone mediates androgen-dependent diseases, such as acne,
hirsutism, and androgenetic alopecia. This hormone is produced from testosterone by the 5α …

[PDF][PDF] Treatment of acne with oral contraceptives: criteria for pill selection

GT Koulianos - CUTIS-NEW YORK-, 2000 - cdn.mdedge.com
Hormones and Acne—Acne can reflect multiple etiologies, including such contributing
factors as infection, abnormal keratinization, immunologic reaction, and hormonal …

Diet and acne

FW Danby - Clinics in dermatology, 2008 - Elsevier
Acne is caused by the action of dihydrotestosterone, derived from endogenous and
exogenous precursors, likely acting synergistically with insulin-like growth factor-1. These …

Managing cutaneous manifestations of hyperandrogenic disorders: the role of oral contraceptives

I Wiegratz, H Kuhl - Treatments in endocrinology, 2002 - Springer
Cutaneous manifestations of hyperandrogenic disorders (acne, seborrhea, hirsutism and
androgenetic alopecia) can be caused by elevated levels of free testosterone or androgen …