11 -酮睾酮

Gen. Comp. Endocrinol. 221 , 144-55, (2015)

Steroidogenesis, the process by which steroid hormones are synthesized, involves a vast number of enzymes and biochemical pathways that are susceptible to chemical modulation. Endocrine disrupting compounds (EDCs) are of special concern since they can alter h...

J. Fish Biol. 81(4) , 1327-39, (2012)

The stress of water-borne hormone collection process was examined in sailfin mollies Poecilia latipinna. Baseline release rates of the stress hormone cortisol were measured and minimum confinement time for water sampling was evaluated for a standard 60 min v....

Fish Physiol. Biochem. 39(1) , 71-4, (2013)

The involvement of androgens during sex differentiation period was investigated in the pejerrey Odontesthes bonariensis, by classic biochemical studies and gonadal histology. We studied in particular whether the enzyme activities involved in 11-oxygenated and...

Horm. Behav. 62(4) , 426-32, (2012)

Behavioral and neuroendocrine mechanisms of social vocalization in teleost fish are influenced by the glucocorticoid cortisol and the androgen 11-ketotestosterone (11kT). The relative abundance of both 11kT, which binds to androgen receptors (ARα, ARβ), and c...

Environ. Toxicol. Chem. 31(12) , 2798-811, (2012)

The overall health and endocrine function of wild brown bullhead (Ameiurus nebulosus) and goldfish (Carassius auratus) from the Wheatley Harbour Area of Concern (Lake Erie, Ontario, Canada) was assessed using a suite of physiological and biochemical endpoints...

Gen. Comp. Endocrinol. 176(2) , 132-43, (2012)

The evidence for androgens having a pivotal role in the functioning of the female reproductive axis--such as initiating puberty or vitellogenesis--is mounting. However, the use of aromatizable androgens and the tissue-specific focus of most studies often make...

Horm. Behav. 63(1) , 49-53, (2013)

Weakly-electric fish (Apteronotidae) produce highly diverse electrocommunication signals. Electric organ discharges (EODs) vary across species, sexes, and in the magnitude and direction of their sexual dimorphism. Gonadal steroid hormones can modulate EODs, a...

J. Steroid Biochem. Mol. Biol. 138 , 183-94, (2013)

• Testosterone implants modify the balance of sex steroid hormones. • Testosterone alters the physiology of the gonad in a protandrous male fish. • Testosterone impairs the recognition and the response to pathogens in the gonad.

Ecotoxicol. Environ. Saf. 109 , 143-51, (2014)

The aim of the present study was to evaluate the responses of female Murray rainbowfish (Melanotaenia fluviatilis) to the model anti-androgen, flutamide in a short-term exposure. Adult female Murray rainbowfish were exposed to nominal (measured) concentration...

Environ. Toxicol. Chem. 32(6) , 1332-6, (2013)

11-Oxoetiocholanolone and related substances are important metabolites of cortisol and are excreted via feces in ruminants. To investigate whether 11-ketotestosterone (11-KT) or its immunoreactive metabolites are formed and excreted in ruminant feces, an enzy...