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In this study, dermal fibroblasts in the head of beagle dogs metabolized the highest amount of progesterone, primarily into cortisol, while dermal papilla cells mainly produced 5α-pregnane-3,20-dione and cortisol.

This study observed that the binding of certain hormones in rat skin varies cyclically with the hair cycle phases, with testosterone showing maximum binding in the catagen phase.

In this study, daily administration of 100mg DHEA for 16 weeks in women with adequate ovarian reserve did not modify metabolic or reproductive variables, apart from increased antral follicular count and anti-Müllerian hormone levels.

Detecting steroid esters in cattle hair is inconsistent and influenced by sampling factors.

Different drugs are used to manage breeding, prevent or end pregnancy, and treat reproductive issues in dogs and cats.

This study suggests that D2O increases hair length in nude mice by extending the hair cycle duration, particularly the hair-existing phase, which is associated with increased mast cell density.

This study found that applying dexamethasone to mice induced catagen-like follicle changes significantly earlier and more consistently than a vehicle, such changes being useful for studying hair follicle regression.

This review discusses skin changes and dermatoses during pregnancy and reports no clinical findings, emphasizing a need for better understanding of their causes.

This study found that dutasteride treatment in pregnant mares significantly increased progesterone concentrations but did not alter gestational length or neonatal outcomes.

Taking a small dose of prednisone before menstruation can almost completely prevent premenstrual acne with few side effects.

This study found that areola formation in mice requires a combination of pregnancy hormones and mechanical strain, with individual stimuli causing only modest changes in epidermal proliferation and connective tissue remodeling.

This study found that none of the depigmenting compounds tested in beef heifers produced a permanent depigmenting effect, though visible depigmentation lasted up to 3 months.

In this study, treatment with DHEA induced mild to moderate hyperplasia of sebaceous glands in ovariectomized rats, which was prevented by the antiandrogen Flutamide but not by the antiestrogen EM-800.

This case report found that a dog's progressive alopecia and prostatitis were caused by ingesting a transdermal estradiol cream, emphasizing the need to identify exogenous estrogen sources during evaluation.

This study found that hair and nails can effectively measure hormone changes such as testosterone, estrogen, and progesterone during the peripubertal period in dogs, with variations observed between males and females at specific developmental stages.

This study found that serum prolactin and dehydroepiandrosterone levels did not determine the onset of mink hair growth cycles, though their metabolites may influence other aspects of hair growth.

β-estradiol slows hair growth in mice.

In this study, researchers observed that chronic stress affected wild-derived house mice differently by sex, with females showing less weight gain and distinct behavioral changes, while males exhibited higher hair corticosterone levels, suggesting divergent coping strategies and implications for sex-specific stress assessment protocols.

This study developed a rat model for catamenial epilepsy, suggesting that neurosteroid withdrawal may increase seizure frequency and help test new treatments.

This study suggests that combination drug therapy with spironolactone and either oral contraceptives or dexamethasone effectively manages unresponsive hirsutism, with eight of nine patients achieving satisfactory clinical responses.

In this case report, veterinarians observed a 16-year-old mare with symptoms including chronic weight loss, pruritus, muscle atrophy, and lameness, which gradually progressed to neurological issues despite initial treatment.

Melatonin improved sheep reproduction, being more beneficial and cost-effective in males.

This study observed that the catagen phase in hairless mice displayed a slower shortening of the mutant epithelial column, resulting in longer total follicle length and abnormalities in the connective tissue sheath and glassy membrane.

This study found that adrenal hormones appear to inhibit winter fur growth onset in mink and may affect the duration of inactivity between fur growth periods.

This meta-analysis reported that dienogest and combined oral contraceptives had comparable efficacy and tolerability for endometriosis treatment, with therapeutic choice suggested to be based on patient preference and clinical history.

This study describes recurrent or persistent follicular dysplasia and interface dermatitis in Boxers, noting concurrent courses and potential influences from photoperiod or genetics, but without identifying the condition's exact causes.

This study found that 17beta-estradiol enhanced allergy responses in certain age groups of female mice and inhibited thymus involution and regeneration after contact hypersensitivity.

This study did not find any significant effects of estradiol or its antagonists on hair growth in two common mouse strains, challenging previous results reported by Oh and Smart.

This article reviews the physiological skin changes and unique dermatoses in pregnancy, discussing their causes and management, but reports no new clinical findings.