Is there protein in semen? This question is asked quite often. The sperm of a man is an organic liquid, which is a rather complex substance that has more than 30 components in its composition. Important elements for human he alth are found in the chemical composition of sperm: vitamins B12, C and others, citric acid, calcium, zinc, copper, highly concentrated potassium, sulfur.
This sticky, mucus-like, non-uniform and opaque liquid smells like raw chestnut (reminiscent of a slight smell of chlorine). The taste is entirely dependent on nutrition, sweet-s alty, bitter and sour.
If ejaculations become frequent, then the taste of sperm also changes. She is more bitter. Immediately after the act, it is thick, but after half a minute it liquefies, its color is opaque, cloudy white. The amount depends on the individual characteristics of the man, the maximum is up to ten milliliters. This is influenced by age, state of he alth, liquid drunk per day. Moreover, this does not affect the fertility in any way. The number of spermatozoa in 1 milliliter mattersseminal fluid.
The amount of semen depends on how often you ejaculate. The more often they are, the less and thinner it is.
Seminal vesicles contain a variety of secretions from the prostate gland, which stimulate the expansion of blood vessels, including muscle contraction. Sperm has alkaline properties, despite the fact that it contains citric acid. In this article, we will find out how much protein is in sperm.
Composition
Semen has two main parts:
- Seminal plasma, which is produced by the secretions of the testicles, the ducts of the seminal gland, including the secretion of the prostate.
- Sperms are shaped elements.
Semen fluid consists of a complex of specific chemical elements and substances that are also found in other tissues of the body, but in much smaller quantities. The main components of seminal plasma are minerals, proteins, hormones, fats, enzymes, carbohydrates and other substances.
What determines the quality of sperm? It is caused by the secretion of testosterone by the testicles.
We are interested in how much protein is in semen. More on that later.
Proteins
The seminal vesicles and the prostate gland contain protein compounds that are instantly converted into amino acids by the action of enzymes during ejaculation. After several studies, it was found that the average amount of protein per 100 ml is 5040 mg. Here's how much protein is in semen.
WoDuring ejaculation, the average man releases 10 ml of semen, which is approximately 0.5 g, or 500 mg, of protein.
Seminal plasma of protein-derived amino acids includes tyrosine, glutamic acid, glycine, serine, aspartic acid, lysine, leucine, histidine. Amino acid content is approximately 0.0125 g/mL.
How much protein is in semen, now it's clear. What else is there?
In addition to proteins and amino acids, seminal plasma has free amines in large quantities: creatine, known as growth creatine, which improves brain activity, weight regulation and the cardiovascular system, choline, spermine, spermidine (30-366 mcg/mL).
A significant concentration in the seminal fluid contains creatine, which is mutually dependent on the concentration of creatine phosphokinase. We found out the protein content in semen, but how many carbohydrates are in it?
Carbohydrates
Carbohydrates in seminal fluid are associated with proteins or are in a free state. Fructose, which has a decisive influence on sperm activity, makes up the majority of free carbohydrates. In the seminal fluid, the amount of fructose in the amount of approximately 1-5 mg / ml is considered normal. In the case when the indicators are higher, this may indicate diabetes mellitus, and if they are lower, then prostate disease. Sperm fructose is the main source of vital activity for spermatozoa. Other free carbohydrates, such as fucose, are also found in seminal plasma.inositol, ribose, sorbitol, glucose. We figured out the carbohydrates, let's move on to fats. But for some reason, a frequent question is: how many grams of protein are in semen?
Fats
The seminal fluid contains the following types of fats: fatty acids, cholesterol, phospholipids. On average, the concentration of cholesterol is 0.5 mg / ml, and it is produced by the prostate gland. Prostaglandins, they are fatty acids, have the properties of lowering blood pressure, stimulating smooth muscles and providing a protective effect on the skin and mucous membranes.
The concentration of fatty acids in the semen and the sensitivity of the female uterus to them when she is ovulating are very important for the process of human reproduction. Some drugs, such as "Indomethacin" and "Aspirin", inhibit the synthesis of prostaglandins, and this reduces the ability of the seed to fertilize.
Prostaglandins are biologically active fats that play an important role in fertility. They have a stimulating effect on smooth muscles, lower blood pressure, protect the skin and mucous membranes, including the stomach and intestines. Uterine motility increases when seminal fluid enters it, or rather, a small amount of it. But a large volume greatly depresses and relaxes.
These fats are of great importance when creating offspring, since they are present in the sperm in sufficient quantities and the uterus is sensitive to them at the time of ovulation.
If you take anti-inflammatory drugs thatinhibit the synthesis of prostaglandin, their level in the seminal fluid of a man will noticeably decrease. There is even an unconfirmed opinion that it is these fats that affect fertility.
Enzymes
We are looking at the composition of semen. Protein is an essential ingredient. But now let's talk about enzymes.
Due to the active participation of enzymes within twenty minutes after the eruption, the semen liquefies. Often, male infertility is caused by a lack of protein-degrading enzymes, as the semen remains viscous, making it difficult for sperm to move.
In addition to protein-degrading enzymes, human seminal fluid contains large amounts of hydrolic (m altase, acid phosphatase, glucosidases) and oxidizing (isocitric dehydrogenase, lactic dehydrogenase) enzymes. Oxidizing agents play a vital role in the process of membrane metabolism.
Glucose phosphate isomerase - this enzyme is also present in the sperm of a man, converts glucose-6-phosphate to fructose-6-phosphate. This enzyme is important for converting carbohydrates into pyruvic or lactic acid. It is contained in tissues using the glycolytic pathway. High levels of glucose phosphate isomerase activity in the blood indicate the presence of a pathology of the male genital organs, in addition, such overestimated levels occur with liver diseases, as well as prostate cancer.
Hormones
The hormones contained in the seed on the concentration in the blood do notinfluence. The content of testosterone in seminal plasma is only a tenth of its value in blood serum. After conducting a simultaneous analysis of seminal fluid and testosterone content in the blood, it was found that the level of the hormone concentration in the plasma of the seed of infertile men is 0.35-1.8 ng / ml, in those who are fertile, it is 2.81-8.50 ng/ml. This included sperm count and a positive testosterone ratio.
Is there a lot of protein in semen? This information is disclosed above.
Minerals
Seminal plasma includes s alts of magnesium, sodium, calcium, potassium. Also in the seminal fluid there is a high concentration of zinc, 0.15-0.3 mg / ml, it plays an important role in intellectual activity. Zinc comes from the prostate gland in its main quantity.
Other substances
An important substance in the composition of seminal fluid is citric acid, which is produced by the prostate gland. Its average concentration in seminal plasma is 510 mg/100 ml. Citric acid is necessary for the success of the process of dilution-coagulation of the seminal fluid, in addition, it can bind to calcium ions.
We looked at how much protein is in semen. They also described in detail the composition of seminal fluid.
