Semen News and Research

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Semen is an organic fluid, also known as seminal fluid, that usually contains spermatozoa. It is secreted by the gonads (sexual glands) and other sexual organs of male or hermaphroditic animals and can fertilize female ova. The process of discharge is called ejaculation.

Automated DNA Separation for Sexual Assault Cases: A Breakthrough in On-Site Forensic Analysis

This study presents a digital microfluidics approach for rapid DNA extraction from sexual assault samples, significantly improving forensic analysis efficiency.

11 Sep 2024

Bulls Guide Research into Male Fertility Genetics

One in eight couples worldwide are unable to conceive within a year, or lifelong due to infertility, making it a common issue.

19 Feb 2024

Study Finds Link Between Chemical "Marks" on DNA in Father’s Sperm and Autistic Traits in Children

Among families with children diagnosed with autism spectrum disorder, Johns Hopkins University researchers say they have found a link between chemical "marks" on DNA in the sperm of fathers and autistic traits in their 3-year-old children.

28 Apr 2023

Variations in methylation linked to age in the human sperm epigenome

A higher risk of reproductive and child health issues is linked to advanced paternal age. Increasing evidence points to age-related alterations in the sperm epigenome as one underlying cause.

23 Mar 2023

Chemically attenuated live DNA virus vaccine prevents viral infection

Rutgers researchers have devised a new way to prevent viral infections: a live-attenuated, replication-defective DNA virus vaccine that utilizes the substance centanamycin to create an altered virus for vaccine development.

From Rutgers University 22 Nov 2022

Using a microfluidic chip for selection of healthy sperm based on positive rheotaxis

The female genital tract can be a hostile environment for conception. Out of about 100 million sperm, only a few hundred make it to the fallopian tubes.

1 Apr 2022

Researchers demonstrate how sperms defend their membranes from oxidation

A team of researchers compared lipid profiles of sperm to learn more about their vulnerability to harmful oxidation and antioxidant capacity in different species’ semen.

21 Mar 2022

Prevalent protein in the blood plays a vital role in human fertilization, infection resistance

Albumin activates a proton channel which allows sperm to penetrate and fertilize an egg and white blood cells to secrete large amounts of inflammatory mediators.

23 Jun 2021

Using proteomics to determine how long a corpse has been underwater

In this interview, AZoLifeSciences speaks to Dr. Noemi Procopio about her latest research which involved using bone proteomics to determine the length of time a corpse had been left underwater.

From Northumbria University 11 Jan 2021

Tree nut consumption impacts sperm DNA methylation

Many environmental and lifestyle factors have been implicated in the decline of sperm quality, with diet being one of the most plausible factors identified in recent years.

10 Nov 2020

New delivery system may treat male infertility

According to the Mayo Clinic, about 15% of couples are infertile, and male infertility plays a role in over one-third of these cases. Often, problems with sperm development are to blame.

22 Oct 2020

State-of-the-art 3D microscopy reveals how human sperms swim

Using state-of-the-art 3D microscopy and mathematics, Dr Hermes Gadêlha from the University of Bristol, Dr Gabriel Corkidi and Dr Alberto Darszon from the Universidad Nacional Autonoma de Mexico, have reconstructed the movement of the sperm tail in 3D with high-precision.

14 Aug 2020

Developing a low-cost tool for rapid identification of body fluids at crime scenes

Engineers at UC Riverside's Marlan and Rosemary Bourns College of Engineering have received a $600,000 grant from the National Institute of Justice to develop a test kit that can rapidly identify body fluids at crime scenes.

27 Apr 2020