Fertility vitamin

Methods of test, including drugs, cosmetics, fertilizer, vitamins, residues in food, and economic poisons... 

Vitamin E also has antiinflammatory and antirheumatic properties It influences fertility (fertility vitamin) for example, vitamin E deficient food causes sterility in rats and prevents honey-bees from metamorphosing to the queen. 

Vitamin E is the name given to a number of structurally related compounds the most important of which is a-tocopherol. The vitamin is needed for mitochondrial electron-transport function and prevents oxidation of various compounds including polyunsaturated fatty acids and vitamin A. The dependence of vitamin E requirement on the amount of dietary polyunsaturated fatty acids has been fully discussed by Jager (1975). Traditionally, vitamin E has been known as the fertility vitamin. However, deficiency leads to serious changes in skeletal muscle, the blood system and other tissues before reproduction is impaired. The effects on different animals are described by Jager (1975). The topic of vitamin E is also covered by Scott (1978). 

Fertile sources of carotenoids include carrots and leafy green vegetables such as spinach. Tomatoes contain significant amounts of the red carotenoid, lycopene. Although lycopene has no vitamin A activity, it is a particularly efficient antioxidant (see Antioxidants). Oxidation of carotenoids to biologically inactive xanthophyUs represents an important degradation pathway for these compounds (56). 

Vitamin E was first described ia 1922 and the name was originally applied to a material found ia vegetable oils. This material was found to be essential for fertility ia tats. It was not until the early 1980s that symptoms of vitamin E deficiency ia humans were recognized. Early work on the natural distribution, isolation, and identification can be attributed to Evans, Butt, and Emerson (University of California) and MattiU and Olcott (University of Iowa). Subsequentiy a group of substances (Eig. 1), which fall iato either the family of tocopherols or tocotrienols, were found to act like vitamin E (1 4). The stmcture of a-tocopherol was determined by degradation studies ia 1938 (5). 

Chemicals are ubiquitous as air, carbohydrates, enzymes, lipids, minerals, proteins, vitamins, water, and wood. Naturally occurring chemicals are supplemented by man-made substances. There are about 70000 chemicals in use with another 500-1000 added each year. Their properties have been harnessed to enhance the quality of life, e.g. cosmetics, detergents, energy fuels, explosives, fertilizers, foods and drinks, glass, metals, paints, paper, pesticides, pharmaceuticals, plastics, rubber, solvents, textiles thus chemicals are found in virtually all workplaces. Besides the benefits, chemicals also pose dangers to man and the environment. For example ... 

Rat Manure-fertilized seed versus chemically fertilised seed Greater weight gain in vitamin B-deficient rats fed manure-fertilised seed (Rowlands and Wilkinson, 1930)... 

Leclerc J, Miller M L, Joliet E and Rocquelin G (1991), Vitamin and mineral contents of carrot and celeriac under mineral or organic fertilization , Biol Agric Hort, 7, 349-361. 

Mozafar A (1993), Nitrogen fertilizers and the amount of vitamins in plants - a review , J Plant Nutr, 16, 2479-2506. 

Mozafar A (1994) Enrichment of some B-vitamins in plants with application of organic fertilizers. Plant Soil 167 305-311... 

Vitamin A is essential for spermatogenesis the retinoic acid may be required in maturation (i.e. differentiation) of spermatid into spermatozoa. This is important in male fertility. 

Dietary Reference Intake (DRI) of Cu, 17-18% of the DRI of K, P, and Fe, and between 5 and 13% of the DRI of Zn, Mg, and Mn (Table 5.1). Potatoes are generally not rich in Ca, but can be a valuable source of trace elements, such as Se and I, if fertilized appropriately (Eurola et al., 1989 Poggi et al., 2000 Turakainen et al., 2004 Broadley et al., 2006). Moreover, since potato tubers have relatively high concentrations of organic compounds that stimulate the absorption of mineral micronutrients by humans, such as ascorbate (vitamin C), protein cysteine and various organic and amino acids (USDA, 2006), and low concentrations of compounds that limit their absorption, such as phytate (0.11-0.27% dry matter Frossard et al., 2000 Phillippy et al., 2004) and oxalate (0.03% dry matter Bushway et al., 1984), the bioavailability of mineral elements in potatoes is potentially high. 

Cobalt is rare on the earth s surface, but is found in fertile soil and in plants. It is required in the human body in the form of vitamin B12 (cyanocobalamin). 

Because of experimental results such as these, vitamin E has been conjectured to restore potency or to preserve fertility, sexual interest, and endurance in humans. No evidence supports these contentions, but because sexual performance is often influenced by mental attitude, a person who believes vitamin E may improve sexual prowess may actually find improvement. The only established therapeutic use for vitamin E is for the prevention or treatment of vitamin E deficiency, a condition that is rare in humans. 

This book describes the efficacy of Shing Jing in male fertility and erectile dysfunction and compares its efficacy with those brought about by levodopa, amylnitrite, vitamin E, and sildenafil (Viagra). 

Kessopoulou, E., Powers, H.J., Sharma, K.K., Pearson, M.J., Russell, J.M., Cooke, I.D., and Barratt, C.L. 1995. A double-blind randomized placebo cross-over controlled trial using the antioxidant vitamin E to treat reactive oxygen species associated male infertility. Fertil. Steril. 

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