Related Experiment Video
Updated: Mar 22, 2026
08:32
Author Spotlight: Advancing Male Infertility Research by Unraveling Sperm Metabolism and Mitochondrial Function
Published on: June 23, 2023
3.1K
Mitochondrial Functionality and Chemical Compound Action on Sperm Function
S Amaral1, R S Tavares, M Baptista
1Center for Neuroscience and Cell Biology, University of Coimbra, 3001-517 Coimbra, Portugal.. scgamaral@gmail.com.
Current Medicinal Chemistry
|April 26, 2016
Summary
Sperm mitochondrial function is crucial for male fertility. This review examines how various compounds impact sperm mitochondria, highlighting their potential as biomarkers for fertility and drug safety assessment.
Area of Science:
- Reproductive Biology
- Mitochondrial Biology
- Toxicology
Background:
- Sperm quality is linked to mitochondrial parameters like membrane potential and ROS production.
- Conventional semen analyses have limitations in predicting male fertility.
- Sperm mitochondria are increasingly studied for assessing sperm functionality.
Purpose of the Study:
- To review the effects of various chemical agents on sperm mitochondrial function.
- To explore the role of sperm mitochondria in male fertility assessment.
- To discuss the utility of sperm mitochondria as a screening tool for drug safety.
Main Methods:
- Literature review of studies on chemical agents and sperm mitochondria.
- Analysis of data on mitochondrial parameters (integrity, respiration, membrane potential, ROS).
- Evaluation of sperm mitochondrial function in relation to male fertility and drug toxicity.
Main Results:
- Mitochondrial parameters are strongly correlated with sperm quality and function.
- Certain compounds significantly affect sperm mitochondrial function.
- Sperm mitochondria show potential as predictive biomarkers for male fertility.
- Sperm mitochondria can serve as an in vitro model for drug toxicity screening.
Conclusions:
- Sperm mitochondrial function is a key indicator of male reproductive health.
- Understanding compound effects on sperm mitochondria is vital for fertility and safety.
- Further research is needed to fully elucidate the predictive role of sperm mitochondria in some contexts.
Related Concept Videos
01:37Mitochondria
21.2K
Mitochondria are eukaryotic cellular organelles that are known to produce energy through a process called oxidative phosphorylation. Besides their primary function, mitochondria are involved in various cellular processes, including cell growth, differentiation, signaling, metabolism, and senescence. Age-related changes cause a decline in mitochondrial quality and integrity due to increased mitochondrial mutations and oxidative damage. Thus, aging can severely impact mitochondrial functions,...
21.2K
01:22Sperm Structure and Semen Composition
13.3K
During ejaculation, males release around 2-5 milliliters of semen, which is a complex mixture of mature sperm and various fluids produced by accessory glands. The mature sperm cells measure approximately 60 micrometers in length and consist of a head, neck, midpiece, and tail. The head is flattened and tapered, measuring about 4 to 5 micrometers in length. It contains a nucleus with condensed chromosomes and an acrosome, a cap-like structure filled with enzymes essential for penetrating the...
13.3K
01:41Spermatogenesis
124.5K
Spermatogenesis is the process by which haploid sperm cells are produced in the male testes. It starts with stem cells located close to the outer rim of seminiferous tubules. These spermatogonial stem cells divide asymmetrically to give rise to additional stem cells (meaning that these structures “self-renew”), as well as sperm progenitors, called spermatocytes. Importantly, this method of asymmetric mitotic division maintains a population of spermatogonial stem cells in the male...
124.5K
01:46Electron Transport Chain: Complex I and II
19.5K
The mitochondrial electron transport chain (ETC) is the main energy generation system in the eukaryotic cells. However, mitochondria also produce cytotoxic reactive oxygen species (ROS) due to the large electron flow during oxidative phosphorylation. While Complex I is one of the primary sources of superoxide radicals, ROS production by Complex II is uncommon and may only be observed in cancer cells with mutated complexes.
ROS generation is regulated and maintained at moderate levels necessary...
ROS generation is regulated and maintained at moderate levels necessary...
19.5K
01:45Mitochondrial Membranes
17.7K
A single mitochondrion is a bean-shaped organelle enclosed by a double-membrane system. The outer membrane of mitochondria is smooth and contains many porins - the integral membrane transporters. Porins enable free diffusion of ions and small uncharged molecules through the outer mitochondrial membrane but limit the transport of molecules larger than 5000 Daltons. Further, the outer mitochondrial membrane forms a unique structure called membrane contact sites with other subcellular organelles,...
17.7K
01:48ATP Synthase: Mechanism
18.4K
In animals, the mitochondrial F1F0 ATP synthase is the key protein that synthesizes ATP molecules through a complex catalytic mechanism. While the nuclear genome encodes the majority of ATP synthase subunits, the mitochondrial genome encodes some of the enzyme's most critical components. The formation of this multi-subunit enzyme is a complex multi-step process regulated at the level of transcription, translation, and assembly. Defects in one or more of these steps can result in decreased...
18.4K