Vistanax

Vistanax Uses, Dosage, Side Effects, Food Interaction and all others data.

Astaxanthin acts as an antioxidant by dual mode of action. It suppresses singlet oxygen and also inhibits lipid peroxidation. By these actions it reduces the harmful free radicals. Therefore acts as a very strong antioxidant. Astaxanthin is absorbed by passive diffusion into the intestinal epithelium alongside fatty acids. Then it is incorporated into lipoproteins, transported to the liver, via lymph and blood and partly resecreted with lipoproteins. More than 70% of the Astaxanthin is contained in high-density lipoprotein part of plasma. Highest concentration of Astaxanthin is in the small intestine, followed by subcutaneous fat, spleen, liver, heart, kidney and skin and lowest in the muscles.

Lutein is an xanthophyll and one of 600 known naturally occurring carotenoids. Lutein is synthesized only by plants and like other xanthophylls is found in high quantities in green leafy vegetables such as spinach, kale and yellow carrots. In green plants, xanthophylls act to modulate light energy and serve as non-photochemical quenching agents to deal with triplet chlorophyll (an excited form of chlorophyll), which is overproduced at very high light levels, during photosynthesis.

Lutein was found to be present in a concentrated area of the macula, a small area of the retina responsible for central vision. The hypothesis for the natural concentration is that lutein helps protect from oxidative stress and high-energy light. Several studies show that an increase in macula pigmentation decreases the risk for eye diseases such as Age-related Macular Degeneration (AMD).

Selenium is a trace metal in the human body particularly important as a component of glutathione peroxidase, an important enzyme in the prevention of cellular damage by free radicals and reactive oxygen species

Selenium is incorporated into many different selenoproteins which serve various functions throughout the body .

Zeaxanthin is a most common carotenoid alcohols found in nature that is involved in the xanthophyll cycle. As a coexistent isomer of lutein, zeaxanthin is synthesized in plants and some micro-organisms. It gives the distinct yellow color to many vegetables and other plants including paprika, corn, saffron and wolfberries. Zeaxanthin is one of the two primary xanthophyll carotenoids contained within the retina of the eye and plays a predominant component in the central macula. It is available as a dietary supplement for eye health benefits and potential prevention of age-related macular degeneration. Zeaxanthin is also added as a food dye.

Vistanax
Uses
Dosage
Side Effect
Precautions
Interactions
Uses during Pregnancy
Uses during Breastfeeding
Accute Overdose
Food Interaction
Half Life
Volume of Distribution
Clearance
Interaction With other Medicine
Contradiction
Storage

Trade Name	Vistanax
Generic	Astaxanthin + ekstraksi kering bilbery + lutein + zeaxanthin + Zn + selenium
Weight	2mg, 80mg, 3mg, 0, 25mg, 2, 5mg, 0, 01mg
Type	Capsule
Therapeutic Class
Manufacturer	Solas Langgeng Sejahtera
Available Country	Indonesia
Last Updated:	September 19, 2023 at 7:00 am

Uses

Astaxanthin is used to-

1. Strong antioxidant

2. Improves cardiovascular health (Atherosclerosis, reduce cholesterol).

3. Improves immune function.

4. Improves condition of skin

5. Protects skin from damage caused by sun (Reduce wrinkles, pimples and other signs of aging)

6. Improves recovery from central nervous system injuries

7. Protects from Parkinson ’s disease, Dementia and Alzheimer\'s

8. Protects eyes from cataracts and macular degeneration.

9. Reduces inflammation (Arthritis)

10. Reduces risk of infertility

Also Astaxnthin effectively reduce oxidative damage to DNA, decrease the risk for many types of cancer and stabilize blood sugar.

Xanthophylls are taken for nutritional supplementation, and also for treating dietary shortage or imbalance.

Selenium is an ingredient found in a variety of supplements and vitamins.

For the supplementation of total parenteral nutrition to prevent hyposelenemia .

Vistanax is also used to associated treatment for these conditions: Folate supplementation therapy, Mineral supplementation, Nutritional supplementation, Vitamin supplementationNutritional supplementationMineral supplementation, Oral Nutritional Supplementation, Vitamin supplementation

How Vistanax works

Xanthophylls have antioxidant activity and react with active oxygen species, producing biologically active degradation products. They also can inhibit peroxidation of membrane phospholipids and reduce lipofuscin formation, both of which contribute to their antioxidant properties. Lutein is naturally present in the macula of the human retina. It filters out potentially phototoxic blue light and near-ultraviolet radiation from the macula. The protective effect is due in part, to the reactive oxygen species quenching ability of these carotenoids. Lutein is more stable to decomposition by pro-oxidants than are other carotenoids such as beta-carotene and lycopene. Lutein is abundant in the region surrounding the fovea, and lutein is the predominant pigment at the outermost periphery of the macula. Zeaxanthin, which is fully conjugated (lutein is not), may offer somewhat better protection than lutein against phototoxic damage caused by blue and near-ultraviolet light radiation. Lutein is one of only two carotenoids that have been identified in the human lens, may be protective against age-related increases in lens density and cataract formation. Again, the possible protection afforded by lutein may be accounted for, in part, by its reactive oxygen species scavenging abilities. Carotenoids also provide protection from cancer. One of the mechanisms of this is by increasing the expression of the protein connexin-43, thereby stimulating gap junctional communication and preventing unrestrained cell proliferation.

Selenium is first metabolized to selenophosphate and selenocysteine. Selenium incorporation is genetically encoded through the RNA sequence UGA . This sequence is recognized by RNA ste loop structures called selenocysteine inserting sequences (SECIS). These structures require the binding of SECIS binding proteins (SBP-2) to recognize selenocystiene. The specialized tRNA is first bound to a serine residue which is then enzymatically processed to a selylcysteyl-tRNA by selenocystiene sythase using selenophosphate as a selenium donor. Other unidentified proteins are required as part of the binding of this tRNA to the ribosome. Selenoproteins appear to be necessary for life as mice with the specialized tRNA gene knocked out exhibited early embryonic lethality .

The most important selenoproteins seem to be the glutathione peroxidases and thioredoxin reductases which are part of the body's defenses againts reactive oxygen species (ROS) . The importance of selenium in these anti-oxidant proteins has been implicated in the reduction of atherosclerosis by preventing the oxidation of low density lipoprotein . Selenium supplementation is also being investigated in the prevention of cancer and has been suggested to be beneficial to immune function .

Dosage

Vistanax dosage

Adults (18 years and older) - Daily dose is 4mg. should be taken along with or immediately prior to meals in the morning.

Different dose for various use are given below:

4 mg: Used as a strong antioxidant, improves cardiovascular health (Atherosclerosis, reduce cholesterol), improves immune function.

4-8 mg: Improves condition of skin, protects skin from sun damage (Reduce wrinkles, pimples and other signs of aging), improves recovery from central nervous system injuries and protects eyes from cataracts and macular degeneration.

8-12 mg: Reduces inflammation (Arthritis)

16 mg: Reduces risk of infertility

Side Effects

No severe side effects have been reported yet

Toxicity

Oral LD50 of 6700mg/kg in rats . Selenium exposure is teratogenic and can result in fetal death as tested in mice. Chronic toxicity is characterized by hair loss, white horizontal streaking on fingernails, paronchyia, fatigue, irritability, hyperreflexia, nausea, vomiting, garlic odor on breath, and metallic taste . Serum selenium correlates weakly with symtoms. Blood chemistry as well as liver and kidney function are normally unnaffected. Acute toxicity presents as stupor, respiratory depression, and hypotension. ST elevations and t-wave changes characteristic of myocardial infarction may be observed.

Precaution

Pregnant women and nursing mothers should avoid Astaxanthin containing supplements.

Interaction

Concomitant intake of Astaxanthin with Cholestyramine, Colestipol, Mineral oil, Orlistat may reduce the absorption rate of Astaxanthin

Elimination Route

Oral bioavailability of 90% when given as L-selenomethionine . Tmax of 9.17h.

Half Life

Half life was observed to increase with chronic dosing time . For day 1-2 half life was 1.7 days. For day 2-3 half life was 3 days. For day 3-14 half life was 11.1 days.

Elimination Route

Mainly excreted in urine as 1beta-methylseleno-N-acetyl-d-galactosamine and trimethylselenonium . The amount excreted as 1beta-methylseleno-N-acetyl-d-galactosamine plateaus at doses around 2microg after which the amount excreted as trimethylselenonium increases. Some selenium is also excreted in feces when given orally .