The presence of seminal plasma, especially derived from stallion semen, helps preserve chilled Asian elephant (Elephas maximus) sperm motility

Andrologia ◽  
2016 ◽  
Vol 49 (6) ◽  
pp. e12690 ◽  
Author(s):  
A. Pinyopummin ◽  
S. Mahasawangkul ◽  
K. Kornkaewrat ◽  
S. Rattanapirom ◽  
W. Leartsang ◽  
...  
Keyword(s):  
Sperm Motility ◽  
Seminal Plasma ◽  
Asian Elephant ◽  
Elephas Maximus

scholarly journals Lactotransferrin in Asian Elephant (Elephas maximus) Seminal Plasma Correlates with Semen Quality

PLoS ONE ◽  
2013 ◽  
Vol 8 (8) ◽  
pp. e71033 ◽  
Author(s):  
Wendy K. Kiso ◽  
Vimal Selvaraj ◽  
Jennifer Nagashima ◽  
Atsushi Asano ◽  
Janine L. Brown ◽  
...  
Keyword(s):  
Seminal Plasma ◽  
Semen Quality ◽  
Asian Elephant ◽  
Elephas Maximus

scholarly journals The characteristics of proteome and metabolome associated with contrasting sperm motility in goat seminal plasma

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Baoyu Jia ◽  
Jiachong Liang ◽  
Chunrong Lv ◽  
Sameeullah Memon ◽  
Yi Fang ◽  
...  
Keyword(s):  
Sperm Motility ◽  
Seminal Plasma ◽  
Enrichment Analysis ◽  
Salivary Secretion ◽  
Metabolic Process ◽  
Functional Roles ◽  
Kegg Analysis ◽  
Parallel Reaction Monitoring ◽  
Metabolite Profiles ◽  
Close Relationship

AbstractSperm motility is an index tightly associated with male fertility. A close relationship between seminal plasma and sperm motility has been confirmed. This study was to assess the protein and metabolite profiles of seminal plasma obtained from adult goats with high or low sperm motility using the proteomic and metabolomic strategies. In total, 2098 proteins were found. 449 differentially abundant proteins (DAPs) were identified, and 175 DAPs were enriched in the high motility group. The obtained DAPs primarily exist in cytoplasma and extra-cellular portion. The Gene Ontology enrichment analysis demonstrated the main functional roles of these DAPs in regulating biological process, metabolic process of organic substances, cellular-metabolic process, primary-metabolic process, metabolic process of nitrogen compounds, etc. Additionally, the Kyoto-Encyclopedia of Genes and Genomes (KEGG) analysis revealed that these DAPs were primarily involved in phosphatidylinositol signaling system, salivary secretion, proteasome, apoptosis, mitophagy-animal, etc. Aided by the parallel reaction monitoring technology, the abundance changing pattern of 19 selected DAPs was consistent with that of the corresponding proteins obtained by TMT. A total of 4603 metabolites were identified in seminal plasma. 1857 differential metabolites were found between the high motility group and the low motility group, and 999 metabolites were up-regulated in the high motility group. The KEGG analysis demonstrated the primary involvement of the differential metabolites in metabolic and synthetic activities. In conclusion, we first established the proteome and metabolome databank of goat seminal plasma, detecting some proteins and metabolites which may affect sperm motility. This study will be valuable for understanding mechanisms leading to poor sperm motility.

scholarly journals Specific Seminal Plasma Fractions Are Responsible for the Modulation of Sperm–PMN Binding in the Donkey

Animals ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 1388
Author(s):  
Jordi Miró ◽  
Jaime Catalán ◽  
Henar Marín ◽  
Iván Yánez-Ortiz ◽  
Marc Yeste
Keyword(s):  
Molecular Weight ◽  
Sperm Motility ◽  
Seminal Plasma ◽  
Potential Effect ◽  
Polymorphonuclear Neutrophils ◽  
Low Fertility ◽  
Plasma Fractions ◽  
Complex Fluid ◽  
First Time

While artificial insemination (AI) with frozen-thawed sperm results in low fertility rates in donkeys, the addition of seminal plasma, removed during cryopreservation, partially counteracts that reduction. Related to this, an apparent inflammatory reaction in jennies is induced following AI with frozen-thawed sperm, as a high amount of polymorphonuclear neutrophils (PMN) are observed within the donkey uterus six hours after AI. While PMN appear to select the sperm that ultimately reach the oviduct, two mechanisms, phagocytosis and NETosis, have been purported to be involved in that clearance. Remarkably, sperm interacts with PMN, but the presence of seminal plasma reduces that binding. As seminal plasma is a complex fluid made up of different molecules, including proteins, this study aimed to evaluate how different seminal plasma fractions, separated by molecular weight (<3, 3–10, 10–30, 30–50, 50–100, and >100 kDa), affect sperm–PMN binding. Sperm motility, viability, and sperm–PMN binding were evaluated after 0 h, 1 h, 2 h, 3 h, and 4 h of co-incubation at 38 °C. Two seminal plasma fractions, including 30–50 kDa or 50–100 kDa proteins, showed the highest sperm motility and viability. As viability of sperm not bound to PMN after 3 h of incubation was the highest in the presence of 30–50 and 50–100 kDa proteins, we suggest that both fractions are involved in the control of the jenny’s post-breeding inflammatory response. In conclusion, this study has shown for the first time that specific fractions rather than the entire seminal plasma modulate sperm–PMN binding within the donkey uterus. As several proteins suggested to be involved in the control of post-AI endometritis have a molecular weight between 30 and 100 kDa, further studies aimed at determining the identity of these molecules and evaluating their potential effect in vivo are much warranted.

scholarly journals Social structure and demography of a remnant Asian elephant Elephas maximus population and the implications for survival

Oryx ◽  
2020 ◽  
pp. 1-6
Author(s):  
Lauren J. Hale ◽  
Kun Shi ◽  
Tania C. Gilbert ◽  
Kelvin S.-H. Peh ◽  
Philip Riordan
Keyword(s):  
Social Structure ◽  
Population Size ◽  
Total Population ◽  
Camera Traps ◽  
Asian Elephant ◽  
Elephas Maximus ◽  
Effective Density ◽  
Anthropogenic Pressures ◽  
Sex Ratio Bias ◽  
Elephant Population

Abstract The Asian elephant Elephas maximus is at risk of extinction as a result of anthropogenic pressures, and remaining populations are often small and fragmented remnants, occupying a fraction of the species' former range. Once widely distributed across China, only a maximum of 245 elephants are estimated to survive across seven small populations. We assessed the Asian elephant population in Nangunhe National Nature Reserve in Lincang Prefecture, China, using camera traps during May–July 2017, to estimate the population size and structure of this genetically important population. Although detection probability was low (0.31), we estimated a total population size of c. 20 individuals, and an effective density of 0.39 elephants per km2. Social structure indicated a strong sex ratio bias towards females, with only one adult male detected within the population. Most of the elephants associated as one herd but three adult females remained separate from the herd throughout the trapping period. These results highlight the fragility of remnant elephant populations such as Nangunhe and we suggest options such as a managed metapopulation approach for their continued survival in China and more widely.

scholarly journals Acute and Fatal Herpesvirus Infection in a Young Asian Elephant (Elephas maximus)

1990 ◽  
Vol 27 (2) ◽  
pp. 131-133 ◽  
Author(s):  
P. Ossent ◽  
F. Guscetti ◽  
A. E. Metzler ◽  
E. M. Lang ◽  
A. Rübel ◽  
...  
Keyword(s):  
Asian Elephant ◽  
Elephas Maximus ◽  
Herpesvirus Infection

SUPRESSION OF TESTICULAR FUNCTION IN A MALE ASIAN ELEPHANT (ELEPHAS MAXIMUS) TREATED WITH GONADOTROPIN-RELEASING HORMONE VACCINES

2014 ◽  
Vol 45 (3) ◽  
pp. 611-619 ◽  
Author(s):  
Imke Lueders ◽  
Thomas Bernd Hildebrandt ◽  
Charles Gray ◽  
Stephan Botha ◽  
Peter Rich ◽  
...  
Keyword(s):  
Gonadotropin Releasing Hormone ◽  
Asian Elephant ◽  
Elephas Maximus ◽  
Testicular Function ◽  
Releasing Hormone
Sign in / Sign up

Export Citation Format

Share Document