The origin of membrane vesicles in ram seminal plasma

Reproduction in Domestic Animals = Zuchthygiene
R El-Hajj GhaouiW M Maxwell

Abstract

The hypothesis tested in this study was that the membrane vesicles present in ram seminal plasma are of testicular origin, rather than being secreted by the accessory sex glands as has been previously reported for a number of species. Membrane vesicles were present in cellular extracts from reproductive organs and accessory sex glands of six rams, and in the seminal plasma of a further eight rams. When four of the latter rams were subjected to vasectomy, to isolate ejaculate contents to only the secretions of the accessory sex glands, the vesicles were largely eliminated from their ejaculates, while vesicles were still present in the ejaculates of the four control rams. The constituents of the cytoplasmic droplets and membrane vesicles derived from the seminal plasma were compared by transmission electron microscopy (TEM). Vesicles present in the cytoplasmic droplets were similar in morphology but smaller on average than those in the seminal plasma. It was concluded that the membrane vesicles in ram seminal plasma originate from either the cytoplasmic droplets, or a combination of vesicles from the droplets and the epididymis.

References

Sep 9, 1985·Biochimica Et Biophysica Acta·G Ronquist, I Brody
Sep 1, 1988·Journal of Andrology·Y Agrawal, T Vanha-Perttula
Mar 1, 1987·Journal of Reproduction and Fertility·Y Agrawal, T Vanha-Perttula
Jan 1, 1982·Urological Research·B Stegmayr, G Ronquist
Jan 1, 1983·Upsala Journal of Medical Sciences·I BrodyA Gottfries
Jan 1, 1982·Scandinavian Journal of Urology and Nephrology·B Stegmayr, G Ronquist
Jan 1, 1997·The Journal of Membrane Biology·G ArientiC A Palmerini
Aug 1, 1998·Biology of Reproduction·G ArientiC A Palmerini
Mar 10, 1999·Journal of Reproduction and Fertility·A MinelliG Ronquist
Feb 24, 2001·Traffic·K S Powell, M Latterich
Sep 8, 2001·The Journal of Biological Chemistry·S JodoS T Ju
Oct 24, 2001·The Journal of Immunology : Official Journal of the American Association of Immunologists·B Z PackardP A Henkart
Oct 25, 2002·Molecular Human Reproduction·Shun-Long WengSergio Oehninger
Mar 14, 2003·Journal of Andrology·Fabrice SaezRobert Sullivan
Jun 9, 2004·Reproduction in Domestic Animals = Zuchthygiene·R El-Hajj GhaouiW M C Maxwell

❮ Previous
Next ❯

Citations

Feb 1, 2008·Reproductive Biology and Endocrinology : RB&E·Laura SicilianoAmalia Carpino
Nov 4, 2020·International Journal of Molecular Sciences·Melissa Carvajal-SernaAdriana Casao

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.