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Showing 1 to 12 of 179 entries
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Immunolocalisation of aromatase regulators liver kinase B1, phosphorylated AMP-activated protein kinase and cAMP response element-binding protein-regulated transcription co-activators in the human testis.

Reproduction, fertility, and development

Ham S, Brown KA, Simpson ER, Meachem SJ.
PMID: 26946412
Reprod Fertil Dev. 2016 Mar 07; doi: 10.1071/RD15390. Epub 2016 Mar 07.

Although oestrogens are essential for spermatogenesis and their biosynthesis is dependent on aromatase expression, the molecular mechanism of aromatase regulation is poorly understood. Our laboratory has demonstrated that liver kinase B1 (LKB1) is a negative regulator of aromatase in...

Morphological and molecular characterisation of Twitcher mouse spermatogenesis: an update.

Reproduction, fertility, and development

Puggioni E, Governini L, Gori M, Belmonte G, Piomboni P, Costantino-Ceccarini E, Luddi A.
PMID: 25664578
Reprod Fertil Dev. 2015 Feb 10; doi: 10.1071/RD14279. Epub 2015 Feb 10.

Spermatogenesis is a complex developmental program in which interactions between different cell types are finely regulated. Mouse models in which any of the sperm maturation steps are perturbed provide major insights into the molecular control of spermatogenesis. The Twitcher...

Spindle configuration and developmental competence of in vitro-matured bovine oocytes exposed to NaCl or sucrose prior to Cryotop vitrification.

Reproduction, fertility, and development

Arcarons N, Morató R, Spricigo JF, Ferraz MA, Mogas T.
PMID: 25897945
Reprod Fertil Dev. 2015 Apr 22; doi: 10.1071/RD14516. Epub 2015 Apr 22.

In the present study we examined whether exposure to high concentrations of NaCl or sucrose before vitrification improves the cryotolerance of in vitro-matured bovine oocytes. In Experiment 1, oocytes were exposed to different concentrations of NaCl (375-1517 mOsm) or...

Comparison of different fertilisation media for an in vitro maturation?fertilisation?culture system using flow-cytometrically sorted X chromosome-bearing spermatozoa for bovine embryo production.

Reproduction, fertility, and development

Ferré LB, Bogliotti Y, Chitwood JL, Fresno C, Ortega HH, Kjelland ME, Ross PJ.
PMID: 25966894
Reprod Fertil Dev. 2015 May 13; doi: 10.1071/RD15019. Epub 2015 May 13.

High demand exists among commercial cattle producers for in vitro-derived bovine embryos fertilised with female sex-sorted spermatozoa from high-value breeding stock. The aim of this study was to evaluate three fertilisation media, namely M199, synthetic oviductal fluid (SOF) and...

The effects of glucuronic acid and N-acetyl-D-glucosamine on in vitro fertilisation of porcine oocytes.

Reproduction, fertility, and development

Schmidt K, Clark A, Mello A, Durfey C, Buck A, Boyd K, Whitaker BD.
PMID: 25585197
Reprod Fertil Dev. 2015 Jan 14; doi: 10.1071/RD14226. Epub 2015 Jan 14.

High incidences of polyspermic penetration continue to challenge researchers during porcine in vitro fertilisation (IVF). The aim of this study was to reduce the incidence of polyspermy by increasing the perivitelline space thickness with glucuronic acid and N-acetyl-D-glucosamine (GlcNAc)...

Plasma prolactin concentrations during lactation, pouch young development and the return to behavioural oestrus in captive koalas (Phascolarctos cinereus).

Reproduction, fertility, and development

Ballantyne K, Anderson ST, Mucci A, Nicolson V, Johnston SD.
PMID: 26020798
Reprod Fertil Dev. 2015 May 29; doi: 10.1071/RD14384. Epub 2015 May 29.

Plasma prolactin (PRL) concentrations in captive koalas during lactation were determined by serial blood sampling. PRL concentrations were low (1.3 ± 0.1 ng mL-1; n = 5) during early lactation until pouch young (PY) began to emerge from the...

Neonatal testosterone exposure induces early development of follicular cysts followed by sympathetic ovarian hyperinnervation.

Reproduction, fertility, and development

Anesetti G, Chávez-Genaro R.
PMID: 25989716
Reprod Fertil Dev. 2015 May 20; doi: 10.1071/RD14460. Epub 2015 May 20.

This study analysed the temporal association between ovarian cyst development induced by neonatal androgenisation and sympathetic innervation. Neonatal rats (postnatal Days 1 to 5) were treated with testosterone or dihydrotestosterone and the effects were evaluated at postnatal Days 20,...

Oestrogenic action of neonatal tamoxifen on the hypothalamus and reproductive system in female mice.

Reproduction, fertility, and development

Parandin R, Behnam-Rassouli M, Mahdavi-Shahri N.
PMID: 27064117
Reprod Fertil Dev. 2016 Apr 11; doi: 10.1071/RD15361. Epub 2016 Apr 11.

Tamoxifen, a selective oestrogen receptor modulator, is widely used for both the treatment and prevention of breast cancer in women; however, it is known to have adverse effects in the female reproductive system. Growing evidence suggests that oestrogen-sensitive neuron...

Fateful triad of reactive oxygen species, mitochondrial dysfunction and lipid accumulation is associated with expression outline of the AMP-activated protein kinase pathway in bovine blastocysts.

Reproduction, fertility, and development

Prastowo S, Amin A, Rings F, Held E, Wondim DS, Gad A, Neuhoff C, Tholen E, Looft C, Schellander K, Tesfaye D, Hoelker M.
PMID: 26907741
Reprod Fertil Dev. 2016 Feb 24; doi: 10.1071/RD15319. Epub 2016 Feb 24.

Low cryotolerance is considered as the major drawback of in vitro-produced bovine embryos and is frequently associated with a triad encompassing increased cytoplasmic lipid accumulation, enhanced levels of reactive oxygen species (ROS) and mitochondrial dysfunction. The aim of the...

Association of a region of bovine chromosome 1 (BTA1) with age at puberty in Angus bulls.

Reproduction, fertility, and development

Fernández ME, Prando A, Rogberg-Muñoz A, Peral-García P, Baldo A, Giovambattista G, Lirón JP.
PMID: 25950803
Reprod Fertil Dev. 2015 May 08; doi: 10.1071/RD14511. Epub 2015 May 08.

Age at puberty is an important component of reproductive performance in cattle, so it is important to identify genes that contribute to the regulation of the onset of puberty and polymorphisms that explain differences between bulls. In a previous...

Saving wild ungulate diversity through enhanced management and sperm cryopreservation.

Reproduction, fertility, and development

Pukazhenthi BS.
PMID: 27246462
Reprod Fertil Dev. 2016 Jan 06; doi: 10.1071/RD15412. Epub 2016 Jan 06.

Wild ungulates throughout the world face the impending risk of extinction. Small founding population size, lack of interest in exhibiting wild ungulates and declining space in zoos are not sustaining ex situ populations. Animals managed in ex situ collections...

The degenerate Y chromosome--can conversion save it?.

Reproduction, fertility, and development

Graves JA.
PMID: 15367368
Reprod Fertil Dev. 2004;16(5):527-34. doi: 10.10371/RD03096.

The human Y chromosome is running out of time. In the last 300 million years, it has lost 1393 of its original 1438 genes, and at this rate it will lose the last 45 in a mere 10 million...

Showing 1 to 12 of 179 entries