Skin Care and Treatments of Melbourne Dermatology - Selenosis

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Selenosis


Although rare, high blood levels of selenium can result in a condition called selenosis.

Symptoms of selenosis include gastrointestinal upsets, hair loss, white blotchy nails, garlic breath odor, fatigue, irritability, and mild nerve damage.

Refer Koller LD and Exon JH. The two faces of selenium-deficiency and toxicity are similar in animals and man. Can J Vet Res 1986;50:297-306:

The purpose of this review article is to demonstrate the close parallelism of daily requirements, biological activity and minimum and maximum tolerable levels of selenium for animals and man.

In addition, the carcinogenic/anticarcinogenic properties of selenium are discussed and a postulate of how these dichotomous effects may occur in accordance with selenium-induced immunomodulation is presented.

A review of pertinent literature pertaining to the biological action of selenium in animals and man, including deficiency, toxicity, carcinogenicity and effects on immunity, is included to support these concepts.

The predominant biochemical action of selenium in both animals and man is to serve as an antioxidant via the selenium-dependent enzyme, glutathione peroxidase, and thus protect cellular membranes and organelles from peroxidative damage.

The signs and symptoms of selenium deficiency closely simulate each other for animals and man.

Severe deficiency is characterized by cardiomyopathy while moderate deficiency results in less severe, myodegenerative syndromes such as muscular weakness and pain as well as a variety of other selenium-associated diseases.

Clinical manifestations of many of these disorders require contributory factors, such as stress, to precipitate symptoms which are documented for animals and implicated for humans.

Current evidence suggests that a daily selenium consumption for [(wo)]man of approximately 30 micrograms is necessary to prevent the selenium-deficient syndrome, Keshan disease, while approximately 90 micrograms/day/adult should be the minimum daily requirement for optimum biological performance.

Recognizing that humans in several countries do not meet the proposed minimum daily requirement of 90 micrograms, several compelling reasons are presented in deriving this minimal daily nutritional intake.

Selenosis can occur in laboratory animals, livestock, and humans following long-term exposure to selenium concentrations as low as 5 mg selenium/kg of diet (5 ppm).

The selenium-induced lesions for all species are similar, which once again illustrates a positive corollary for selenium effects in both animals and man.

From compilation of available data, the maximum tolerable level for selenium in man could be considered in the range of 1000 to 1500 micrograms/day. This is in contrast to the currently recommended maximum human tolerable level of 500 micrograms/day.

The amount of selenium that can be tolerated, however, is dependent upon individual biological variation, nutritional status and general state of health.

Skin Care and Dermatological Glossary :

Phospholipids : Alcohols : Dietary Antioxidants : Glycolic Acid : Rosacea : ATP : About Trehalose : Accutane (Isotretinoin) : Acidic : Actinic : Alkaline : Alopecia : Amino Acids : Amphoteric : Angiogenesis : Angioma : Antioxidants : Aqueous : Arc : Arteriole : Artery : Ascorbic Acid / Vitamin C : Atherogenic : Atopic : Benzene : Bioavailability : Bioflavonoid : Biopsy : Biotechnology : Blackhead : Cadaver : Calcium : Capillary : Carboxyl : Carcinogenicity : Carcinoma : Cartilage : Catechins : Cell Division : Cellulitis : Chromatography : Cicatrix : Citric Acid : Citronellol : Coccidioidomycosis : Colitis : Collagen : Colourimetre : Comedo/Comedone : Compound : Connective Tissue : Contusion : Corpus Luteum : Cosmesis : Cyst : Cytochrome : Cytotoxin : Denature : Dermatitis : Dermis : Diabetes : Dibasic Acid : Diploidy/Diploid : Diuretic : Eczema : Edema/Oedema : Elastase: The Unrestrained Thief of Skin Elasticity : Elastin : Electrolysis : Electrophoresis : Emollient : Enantiomer : Endothelium : Environmental Stressors : Enzymes : Eosin : Epidermal Necrosis : Epidermis : Epithelium : Erythema : Essential Fatty Acids : Essential Oils : Esters : Eugenol : Eukaryote/Eukaryotic : Exanthem/Exanthema : Extirpation : Fatty Acids : Ferulic Acid : Fibroblast : Flavonolignan : Flora : Folic Acid (Pteroylglutamic Acid/Vitamin M) : Follicle : Free Radical : Fullerene : Galapagos Tortoise : Gamete : Gene : Genistein : Genome : Genomic DNA : Genotoxin : Glasswort : Glucagon : Glutamic Acid : Glycation : Glycerin : Glycopeptide : Glycoprotein : Glycosaminoglycans : Haploidy/Haploid : Hematoxylin : High Frequency Glass Electrode Beauty Devices : Histology/Histologic : Hives : Hormone : Humectant : Hyaluronic Acid/Sodium Hyaluronate : Hydrocarbon : Hydrolysis : Hydrophilic : Hydrophobic : Hydroxyl (OH) : Hygroscopic : Hypertrophic Scar : Hypochlorous Acid : Hypopigmentation : Immunosuppression : In Summary: Oxidation/Reduction and Tanning : In Vitro : In Vivo : Insulin : Interleukins : Ischemia : Islet : Islets of Langerhans/Islands of Langerhans : Isoprene : Keloid : Keratin : Keratinocytes : Kinase : Lactic Acid : Lactoferrin : Lignin : Limonene : Lipids : Lipophilic : Lymphatic System : MMPs (Matrix Metalloproteinases) : Macromolecule : Malic Acid : Mandelic Acid : Melanin : Melanoma : Membrane : Membrane : Mermaid : Metabolism : Metalloproteinases : Metastatic : Methionine : Micellization : Microtubule : Mineral : Molecular/Cellular Biology: Skin Functioning at the most Essential Level : Molecule : Moles (Blemishes)/Moles Per Litre : Monomer : Mucin : Mucoproteins : Myelin : Nanotechnology : Neurotoxin : Nitrogen : Nodule : Nymph : ORAC : Occlusive : Optic : Otorhinolaryngology : Oxygen : Oxytalan Fibers/Fibres : Ozone : Palmitic Acid : Papain : Papillary Dermis : Papule : Pentacyclic : Pentapeptides GM and GD : Pentose : Peptidases : Peptides : Perichondrium : Peroxidase : Peroxide : Phenol : Phlebitis : Photosensitivity : Phytostimulines : Pigmentation : Pimple : Pledget : Polymer : Polymer/Polymeric : Polypeptide : Polyquaterium-51 : Post-Inflammatory Hyperpigmentation : Pro-Collagen : Prodrug : Proenzymes : Prophylaxis : Propionibacterium / P. Acnes Bacteria : Proteases : Protein : Proteoglycans : Proteolytic Enzymes : Proteome : Pruritus : Psoriasis : Pure/Purity : Pustule : Radiation : Radical : Redox : Reductase : Reperfusion : Restenosis : Reticular Dermis : Retinol : Rhinoplasty : Rockfish : Saccharides : Sebum : Selenium (Definition) : Selenosis : Senescence : Sentinel : Skin Resurfacing by Laser : Skin Structure Diagram : Sodium PCA : Squamous : Stable/Stability : Stenosis : Stratum Corneum : Subclinical Inflammation : Subcutis : Sulfur : Surfactant : Synovial : Tannins : Tartaric Acid : Telomere : Temporal Bones : Thermoregulation / Thermoregulate : Thymine Dimer : Tocopherol : Transferase : Tribasic Acid : Triterpenoid : Tropoelastin : Tubulin : Ubiquinone — Co-Enzyme Q-10 : Vascular : Vascular Epithelial Growth Factor : Vein : Venule : Vestibule : Viscous : Vitamin K : Vitamin PP/Nicotinate : Vitamins : Whitehead : Xerosis : Zygoma : Zygote : pH :

Related Skin Care Information, Products and Expert Discussions

Symptoms of Selenium Deficiency

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Recommended Daily Allowance of Selenium

Oxidize

In Summary: Oxidation/Reduction and Tanning


Skin Care and Dermatological Glossary :

Phospholipids : Alcohols : Dietary Antioxidants : Glycolic Acid : Rosacea : ATP : About Trehalose : Accutane (Isotretinoin) : Acidic : Actinic : Alkaline : Alopecia : Amino Acids : Amphoteric : Angiogenesis : Angioma : Antioxidants : Aqueous : Arc : Arteriole : Artery : Ascorbic Acid / Vitamin C : Atherogenic : Atopic : Benzene : Bioavailability : Bioflavonoid : Biopsy : Biotechnology : Blackhead : Cadaver : Calcium : Capillary : Carboxyl : Carcinogenicity : Carcinoma : Cartilage : Catechins : Cell Division : Cellulitis : Chromatography : Cicatrix : Citric Acid : Citronellol : Coccidioidomycosis : Colitis : Collagen : Colourimetre : Comedo/Comedone : Compound : Connective Tissue : Contusion : Corpus Luteum : Cosmesis : Cyst : Cytochrome : Cytotoxin : Denature : Dermatitis : Dermis : Diabetes : Dibasic Acid : Diploidy/Diploid : Diuretic : Eczema : Edema/Oedema : Elastase: The Unrestrained Thief of Skin Elasticity : Elastin : Electrolysis : Electrophoresis : Emollient : Enantiomer : Endothelium : Environmental Stressors : Enzymes : Eosin : Epidermal Necrosis : Epidermis : Epithelium : Erythema : Essential Fatty Acids : Essential Oils : Esters : Eugenol : Eukaryote/Eukaryotic : Exanthem/Exanthema : Extirpation : Fatty Acids : Ferulic Acid : Fibroblast : Flavonolignan : Flora : Folic Acid (Pteroylglutamic Acid/Vitamin M) : Follicle : Free Radical : Fullerene : Galapagos Tortoise : Gamete : Gene : Genistein : Genome : Genomic DNA : Genotoxin : Glasswort : Glucagon : Glutamic Acid : Glycation : Glycerin : Glycopeptide : Glycoprotein : Glycosaminoglycans : Haploidy/Haploid : Hematoxylin : High Frequency Glass Electrode Beauty Devices : Histology/Histologic : Hives : Hormone : Humectant : Hyaluronic Acid/Sodium Hyaluronate : Hydrocarbon : Hydrolysis : Hydrophilic : Hydrophobic : Hydroxyl (OH) : Hygroscopic : Hypertrophic Scar : Hypochlorous Acid : Hypopigmentation : Immunosuppression : In Summary: Oxidation/Reduction and Tanning : In Vitro : In Vivo : Insulin : Interleukins : Ischemia : Islet : Islets of Langerhans/Islands of Langerhans : Isoprene : Keloid : Keratin : Keratinocytes : Kinase : Lactic Acid : Lactoferrin : Lignin : Limonene : Lipids : Lipophilic : Lymphatic System : MMPs (Matrix Metalloproteinases) : Macromolecule : Malic Acid : Mandelic Acid : Melanin : Melanoma : Membrane : Membrane : Mermaid : Metabolism : Metalloproteinases : Metastatic : Methionine : Micellization : Microtubule : Mineral : Molecular/Cellular Biology: Skin Functioning at the most Essential Level : Molecule : Moles (Blemishes)/Moles Per Litre : Monomer : Mucin : Mucoproteins : Myelin : Nanotechnology : Neurotoxin : Nitrogen : Nodule : Nymph : ORAC : Occlusive : Optic : Otorhinolaryngology : Oxygen : Oxytalan Fibers/Fibres : Ozone : Palmitic Acid : Papain : Papillary Dermis : Papule : Pentacyclic : Pentapeptides GM and GD : Pentose : Peptidases : Peptides : Perichondrium : Peroxidase : Peroxide : Phenol : Phlebitis : Photosensitivity : Phytostimulines : Pigmentation : Pimple : Pledget : Polymer : Polymer/Polymeric : Polypeptide : Polyquaterium-51 : Post-Inflammatory Hyperpigmentation : Pro-Collagen : Prodrug : Proenzymes : Prophylaxis : Propionibacterium / P. Acnes Bacteria : Proteases : Protein : Proteoglycans : Proteolytic Enzymes : Proteome : Pruritus : Psoriasis : Pure/Purity : Pustule : Radiation : Radical : Redox : Reductase : Reperfusion : Restenosis : Reticular Dermis : Retinol : Rhinoplasty : Rockfish : Saccharides : Sebum : Selenium (Definition) : Selenosis : Senescence : Sentinel : Skin Resurfacing by Laser : Skin Structure Diagram : Sodium PCA : Squamous : Stable/Stability : Stenosis : Stratum Corneum : Subclinical Inflammation : Subcutis : Sulfur : Surfactant : Synovial : Tannins : Tartaric Acid : Telomere : Temporal Bones : Thermoregulation / Thermoregulate : Thymine Dimer : Tocopherol : Transferase : Tribasic Acid : Triterpenoid : Tropoelastin : Tubulin : Ubiquinone — Co-Enzyme Q-10 : Vascular : Vascular Epithelial Growth Factor : Vein : Venule : Vestibule : Viscous : Vitamin K : Vitamin PP/Nicotinate : Vitamins : Whitehead : Xerosis : Zygoma : Zygote : pH :


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