Ascorbic Acid Deficiency
Scurvy
Ascorbic Acid
Fatty Acids, Essential
Haptoglobins
Folic Acid Deficiency
Liver
Apolipoprotein A-I
Deficiency Diseases
Body Weight
Anemia, Macrocytic
Blotting, Northern
Methemoglobinemia
SARS Virus
Glucosephosphate Dehydrogenase Deficiency
Severe Acute Respiratory Syndrome
Spike Glycoprotein, Coronavirus
Hemolysis
Dietary antioxidants and magnesium in type 1 brittle asthma: a case control study. (1/213)
BACKGROUND: Type 1 brittle asthma is a rare form of asthma. Atopy, psychosocial factors and diet may contribute to this condition. As increased dietary magnesium has a beneficial effect on lung function and selenium, vitamins A, C and E have antioxidant properties, a study was undertaken to test the hypothesis that patients with brittle asthma have diets deficient in these nutrients compared with subjects with non-brittle asthma and healthy adults. METHODS: A case control study of the dietary intakes of 20 subjects with brittle asthma, 20 with non-brittle asthma, and 20 healthy adults was performed using five day weighed dietary records. Intake of magnesium was the primary outcome measure with selenium and vitamins A, C and E as secondary outcomes. Serum levels were measured at the same time as the dietary assessment. RESULTS: Sixty subjects (27 men) of mean age 49.5 years were recruited and completed the study. Subjects with brittle asthma had statistically lower median dietary intakes of vitamins A and E than the other groups (vitamin A: brittle asthma 522.5 micrograms/day, non-brittle asthma 869.5 micrograms/day, healthy adults 806.5 micrograms/day; vitamin E: brittle asthma 4.3 mg/day, non-brittle asthma 4.6 mg/day, healthy adults 4.5 mg/day). Median dietary intakes for the other nutrients were not significantly different between groups. Serum levels were within normal ranges for each nutrient in all subjects. Intakes less than the reference nutrient intake (RNI) for magnesium and vitamins A and C, and less than the safe intake (SI) for vitamin E were more likely in patients with brittle asthma than in those with non-brittle asthma. CONCLUSION: Nutrient deficiency and reduced antioxidant activity may contribute to disease activity in type 1 brittle asthma, although a prospective study of replacement therapy will be needed to confirm this hypothesis. (+info)Parenteral vitamin requirements during intravenous feeding. (2/213)
Serum vitamin levels of 40 patients undergoing parenteral nutrition over a 5-to 42-day period were studied while the subjects received daily water-soluble and once weekly fat soluble vitamin formulations intravenously. Initial serum deficiencies of vitamins A, C, and folate were noted in a large portion of the severely malnourished population. At the replacement levels used in this study a small number of patients developed subnormal levels of vitamins A and D. Improvement in levels for vitamin C and folate were noted for most patients. Vitamin B12 deficiencies were not noted in any patient. Currently available commercial vitamin preparations can be used with safety in the parenterally nourished population and recommended guidelines for weekly infusion of both water and fat soluble vitamins are presented. (+info)Aortic wall damage in mice unable to synthesize ascorbic acid. (3/213)
By inactivating the gene for L-gulono-gamma-lactone oxidase, a key enzyme in ascorbic acid synthesis, we have generated mice that, like humans, depend on dietary vitamin C. Regular chow, containing about 110 mg/kg of vitamin C, is unable to support the growth of the mutant mice, which require L-ascorbic acid supplemented in their drinking water (330 mg/liter). Upon withdrawal of supplementation, plasma and tissue ascorbic acid levels decreased to 10-15% of normal within 2 weeks, and after 5 weeks the mutants became anemic, began to lose weight, and die. Plasma total antioxidative capacities were approximately 37% normal in homozygotes after feeding the unsupplemented diet for 3-5 weeks. As plasma ascorbic acid decreased, small, but significant, increases in total cholesterol and decreases in high density lipoprotein cholesterol were observed. The most striking effects of the marginal dietary vitamin C were alterations in the wall of aorta, evidenced by the disruption of elastic laminae, smooth muscle cell proliferation, and focal endothelial desquamation of the luminal surface. Thus, marginal vitamin C deficiency affects the vascular integrity of mice unable to synthesize ascorbic acid, with potentially profound effects on the pathogenesis of vascular diseases. Breeding the vitamin C-dependent mice with mice carrying defined genetic mutations will provide numerous opportunities for systematic studies of the role of antioxidants in health and disease. (+info)Ascorbate is depleted by smoking and repleted by moderate supplementation: a study in male smokers and nonsmokers with matched dietary antioxidant intakes. (4/213)
BACKGROUND: Lack of reliable dietary data has hampered the ability to effectively distinguish between effects of smoking and diet on plasma antioxidant status. As confirmed by analyses of comprehensive food-frequency questionnaires, the total dietary intakes of fruit and vegetables and of dietary antioxidants were not significantly different between the study groups in the present study, thereby enabling isolation of the effect of smoking. OBJECTIVE: Our objective was to investigate the effect of smoking on plasma antioxidant status by measuring ascorbic acid, alpha-tocopherol, gamma-tocopherol, beta-carotene, and lycopene, and subsequently, to test the effect of a 3-mo dietary supplementation with a moderate-dose vitamin cocktail. DESIGN: In a double-blind, placebo-controlled design, the effect of a vitamin cocktail containing 272 mg vitamin C, 31 mg all-rac-alpha-tocopheryl acetate, and 400 microg folic acid on plasma antioxidants was determined in a population of smokers (n = 37) and nonsmokers (n = 38). The population was selected for a low intake of fruit and vegetables and recruited from the San Francisco Bay area. RESULTS: Only ascorbic acid was significantly depleted by smoking per se (P < 0.01). After the 3-mo supplementation period, ascorbic acid was efficiently repleted in smokers (P < 0.001). Plasma alpha-tocopherol and the ratio of alpha- to gamma-tocopherol increased significantly in both supplemented groups (P < 0.05). CONCLUSIONS: Our data suggest that previous reports of lower concentrations of plasma vitamin E and carotenoids in smokers than in nonsmokers may primarily have been caused by differences in dietary habits between study groups. Plasma ascorbic acid was depleted by smoking and repleted by moderate supplementation. (+info)Plasma vitamin C and food choice in the third Glasgow MONICA population survey. (5/213)
STUDY OBJECTIVE: To determine the contribution of different foods to the estimated intakes of vitamin C among those differing in plasma vitamin C levels, and thereby inform dietary strategies for correcting possible deficiency. DESIGN: Cross sectional random population survey. SETTING: North Glasgow, Scotland, 1992. PARTICIPANTS: 632 men and 635 women, aged 25 to 74 years, not taking vitamin supplements, who participated in the third MONICA study (population survey monitoring trends and determinants of cardiovascular disease). MEASUREMENTS AND MAIN RESULTS: Dietary and sociodemographic information was collected using a food frequency and lifestyle questionnaire. Plasma vitamin C was measured in non-fasted venous blood samples and subjects categorised by cut points of 11.4 and 22.7 micromol/l as being of low, marginal or optimal vitamin C status. Food sources of dietary vitamin C were identified for subjects in these categories. Plasma vitamin C concentrations were compared among groups classified according to intake of key foods. More men (26%) than women (14%) were in the low category for vitamin C status; as were a higher percentage of smokers and of those in the older age groups. Intake of vitamin C from potatoes and chips (fried potatoes) was uniform across categories; while the determinants of optimal versus low status were the intakes of citrus fruit, non-citrus fruit and fruit juice. Optimal status was achieved by a combined frequency of fruit, vegetables and/or fruit juice of three times a day or more except in older male smokers where a frequency greater than this was required even to reach a marginal plasma vitamin C level. CONCLUSION: Fruit, vegetables and/or fruit juice three or more times a day increases plasma vitamin C concentrations above the threshold for risk of deficiency. (+info)Vitamin C status and mortality in US adults. (6/213)
BACKGROUND: Low vitamin C status may increase the risk of mortality from cancer and cardiovascular disease. OBJECTIVE: The objective was to test whether an association existed between serum ascorbate concentrations and mortality and whether the association was modified by cigarette smoking status or sex. DESIGN: Serum ascorbate concentrations were measured in adults as part of the second National Health and Nutrition Examination Survey (1976-1980). Vital status was ascertained 12-16 y later. RESULTS: The relative risk (RR) of death, adjusted for potential confounders, was estimated by using Cox proportional hazards models. Men in the lowest (<28.4 micromol/L) compared with the highest (>/=73.8 micromol/L) serum ascorbate quartile had a 57% higher risk of dying from any cause (RR: 1.57; 95% CI: 1.21, 2.03) and a 62% higher risk of dying from cancer (RR: 1.62; 95% CI: 1.01, 2.59). In contrast, there was no increased risk among men in the middle 2 quartiles for these outcomes and no increased risk of cardiovascular disease mortality in any quartile. There was no association between serum ascorbate quartile and mortality among women. These findings were consistent when analyses were limited to nonsmokers or further to adults who never smoked, suggesting that the observed relations were not due to cigarette smoking. CONCLUSIONS: These data suggest that men with low serum ascorbate concentrations may have an increased risk of mortality, probably because of an increased risk of dying from cancer. In contrast, serum ascorbate concentrations were not related to mortality among women. (+info)Oral contraceptives and ascorbic acid. (7/213)
Plasma, leukocyte, and platelet ascorbic acid levels are decreased in women ingesting oral contraceptive steroids. Studies have shown that it is the estrogenic component of the oral contraceptive agents that is associated with the decresased ascorbic acid concentrations. Urinary excretion of ascorbic acid does not appear to be increased by the steroids. Although serum levels of copper are increased by estrogens and oral contraceptives, ascorbic acid catabolism does not appear to be increased (unpublished). Our preliminary data on tissue uptake of ascorbic acid suggest that changes in tissue distribution are one possible answer for the observed effects of the steroids on blood levels of ascorbic acid. (+info)Fractured neck of femur in black patients: a prospective study. (8/213)
We explored the role of iron overload, deficiency of vitamin C and alcohol abuse in the aetiology of cervical and intertrochanteric fractures of the neck of the femur as a result of minor trauma. We studied prospectively 72 patients (45 men, 27 women). Levels of serum iron markers, vitamin C and alcohol markers were measured. Consumption of alcohol was estimated using questionnaires. The findings were compared with those of an age- and gender-matched control group. The mean age of the men was 59.5 years and of the women 66.9 years, with a male predominance. In the men, iron overload, as shown by high levels of serum ferritin (p < 0.001) and deficiency of vitamin C (p < 0.03), as well as abuse of both Western and the traditional type of alcohol, appear to be important aetiological factors. In women, alcohol abuse was also common, but iron markers and levels of vitamin C did not differ significantly from the control group. (+info)Ascorbic acid deficiency can occur due to several reasons, including:
1. Poor diet: A diet that is lacking in vitamin C-rich foods such as citrus fruits, leafy greens, and bell peppers can lead to a deficiency.
2. Inability to absorb vitamin C: Certain medical conditions such as celiac disease, Crohn's disease, and ulcerative colitis can impair the body's ability to absorb vitamin C from food.
3. Increased demand: Vitamin C is essential for wound healing, and during pregnancy and lactation, the body requires more vitamin C to support fetal growth and development.
4. Long-term use of antacids or proton pump inhibitors: These medications can reduce the absorption of vitamin C.
The symptoms of ascorbic acid deficiency can vary depending on the severity of the deficiency and may include:
1. Fatigue and weakness
2. Mood changes such as irritability, anxiety, or depression
3. Difficulty healing from wounds or infections
4. Swelling or bleeding in the gums
5. Joint pain and stiffness
6. Frequent infections such as the common cold or flu
7. Poor digestion and diarrhea
If left untreated, ascorbic acid deficiency can lead to more severe conditions such as scurvy, which can cause:
1. Bleeding gums and teeth
2. Joint pain and swelling
3. Weakened immune system
4. Poor wound healing
5. Fatigue and weakness
Treatment for ascorbic acid deficiency typically involves supplementing with vitamin C, either orally or intravenously, and addressing any underlying causes of the deficiency. In severe cases, hospitalization may be necessary to monitor and treat any complications.
Prevention is key, so it's important to maintain a balanced diet that includes foods rich in vitamin C, such as citrus fruits, leafy greens, and berries. Additionally, avoiding smoking and limiting alcohol consumption can also help prevent ascorbic acid deficiency.
In conclusion, ascorbic acid deficiency is a common nutrient deficiency that can have significant impacts on overall health and well-being. Recognizing the causes, symptoms, and treatment options is essential for proper management and prevention of this condition.
There are several ways to prevent and treat scurvy, including:
* Eating foods rich in vitamin C, such as citrus fruits, leafy greens, and bell peppers.
* Taking vitamin C supplements.
* Increasing the intake of other nutrients that help the body absorb vitamin C, such as calcium and potassium.
* Avoiding foods and drinks that are high in oxalic acid, which can interfere with the absorption of vitamin C.
The discovery of scurvy and its treatment have had a significant impact on the history of medicine and nutrition. It led to the discovery of other essential nutrients and the development of modern nutrition science.
1. Anemia: Folic acid plays a critical role in the production of red blood cells, so a deficiency can lead to anemia, which can cause fatigue, weakness, and shortness of breath.
2. Birth defects: Folic acid is crucial for fetal development during pregnancy, and a deficiency can increase the risk of birth defects such as spina bifida and cleft palate.
3. Heart disease: Folic acid helps to regulate homocysteine levels in the blood, which are associated with an increased risk of heart disease and stroke.
4. Neurological problems: Folic acid is important for the health of the nervous system, and a deficiency can lead to neurological problems such as cognitive impairment, mood disturbances, and seizures.
5. Poor wound healing: Folic acid is necessary for the production of collagen, which is important for wound healing. A deficiency can lead to slow or poor wound healing.
6. Increased risk of cancer: Some studies suggest that a folic acid deficiency may increase the risk of certain types of cancer, such as colon cancer.
7. Hair loss: Folic acid is important for hair growth, and a deficiency can lead to hair loss.
8. Skin problems: Folic acid is important for skin health, and a deficiency can lead to skin problems such as dry, flaky skin and mouth sores.
9. Mood changes: Folic acid plays a role in the production of neurotransmitters, which are chemicals that regulate mood. A deficiency can lead to mood changes such as depression and anxiety.
10. Fatigue: Folic acid is important for energy metabolism, and a deficiency can lead to fatigue and weakness.
Folic acid deficiency can be caused by a number of factors, including:
1. Poor diet: A diet that is low in folate-rich foods can lead to a deficiency.
2. Malabsorption: Certain medical conditions such as celiac disease and Crohn's disease can lead to malabsorption of folic acid.
3. Pregnancy and lactation: Women who are pregnant or breastfeeding have a higher need for folic acid, and may be at risk for deficiency if they do not consume enough.
4. Alcoholism: Heavy alcohol consumption can interfere with the absorption of folic acid.
5. Certain medications: Some medications, such as antacids and proton pump inhibitors, can interfere with the absorption of folic acid.
To diagnose a folic acid deficiency, a healthcare provider may perform a physical exam, take a medical history, and order blood tests to measure folic acid levels. Treatment for a folic acid deficiency typically involves dietary changes and supplements. Dietary changes may include consuming more folate-rich foods, such as leafy green vegetables, legumes, and whole grains. Supplements may include folic acid tablets or liquid supplements. In severe cases of deficiency, injections of folic acid may be necessary. It is important to seek medical attention if you suspect a folic acid deficiency, as untreated deficiencies can lead to serious health problems.
1. Scurvy: A disease caused by a lack of vitamin C in the diet, leading to bleeding gums, weakened immune system, and poor wound healing.
2. Rickets: A disease that affects children and is caused by a lack of calcium and vitamin D, leading to soft and weak bones.
3. Anemia: A condition where the body does not have enough red blood cells or hemoglobin, which can be caused by a lack of iron, folate, or vitamin B12.
4. Beriberi: A condition that affects the heart and nervous system and is caused by a lack of vitamin B1 (thiamine), leading to muscle weakness, fatigue, and heart failure.
5. Goiter: An enlarged thyroid gland that can be caused by a lack of iodine in the diet, leading to hypothyroidism and other complications.
6. Pellagra: A disease caused by a lack of niacin (vitamin B3) in the diet, leading to diarrhea, dermatitis, and dementia.
7. Kwashiorkor: A condition that occurs in children who are malnourished due to a lack of protein in their diet, leading to edema, skin lesions, and diarrhea.
8. Marasmus: A severe form of malnutrition that can be caused by a lack of calories, protein, or other essential nutrients, leading to weight loss, wasting, and weakened immune system.
Deficiency diseases can be prevented by consuming a well-balanced diet that includes a variety of whole foods, such as fruits, vegetables, whole grains, lean proteins, and healthy fats. In some cases, deficiency diseases may also be treated with supplements or other medical interventions.
It is important to note that deficiency diseases can have far-reaching consequences for individuals, families, and communities. Malnutrition can lead to reduced productivity, increased healthcare costs, and a lower quality of life. Therefore, it is essential to prioritize nutrition and take steps to prevent deficiency diseases.
Body weight is an important health indicator, as it can affect an individual's risk for certain medical conditions, such as obesity, diabetes, and cardiovascular disease. Maintaining a healthy body weight is essential for overall health and well-being, and there are many ways to do so, including a balanced diet, regular exercise, and other lifestyle changes.
There are several ways to measure body weight, including:
1. Scale: This is the most common method of measuring body weight, and it involves standing on a scale that displays the individual's weight in kg or lb.
2. Body fat calipers: These are used to measure body fat percentage by pinching the skin at specific points on the body.
3. Skinfold measurements: This method involves measuring the thickness of the skin folds at specific points on the body to estimate body fat percentage.
4. Bioelectrical impedance analysis (BIA): This is a non-invasive method that uses electrical impulses to measure body fat percentage.
5. Dual-energy X-ray absorptiometry (DXA): This is a more accurate method of measuring body composition, including bone density and body fat percentage.
It's important to note that body weight can fluctuate throughout the day due to factors such as water retention, so it's best to measure body weight at the same time each day for the most accurate results. Additionally, it's important to use a reliable scale or measuring tool to ensure accurate measurements.
Symptoms of macrocytic anemia may include fatigue, weakness, pale skin, and shortness of breath. Diagnosis is typically made through a complete blood count (CBC) test that shows an elevated mean corpuscular volume (MCV) and reticulocyte count. Treatment depends on the underlying cause, but may include vitamin supplements, changes in medication, or addressing any underlying medical conditions.
In summary, macrocytic anemia is a type of anemia characterized by large red blood cells that are prone to breakdown and can be caused by various factors. It can cause symptoms such as fatigue, weakness, and shortness of breath, and diagnosis is made through a CBC test. Treatment depends on the underlying cause.
There are several possible causes of methemoglobinemia, including:
1. Exposure to certain medications or chemicals, such as nitrates or aniline dyes.
2. Genetic disorders that affect the production or function of hemoglobin.
3. Infections, such as bacterial infections of the blood or respiratory tract.
4. Poor nutrition or malnutrition.
5. Certain chronic medical conditions, such as sickle cell anemia or thalassemia.
Methemoglobinemia can be diagnosed through a variety of tests, including:
1. Complete blood count (CBC) to measure the levels of methemoglobin in the blood.
2. Blood gas analysis to measure the partial pressure of oxygen and carbon dioxide in the blood.
3. Co-oximetry to measure the levels of methemoglobin and other forms of hemoglobin.
4. Urine tests to check for the presence of abnormal hemoglobin.
5. Genetic testing to identify inherited disorders that may be causing the condition.
Treatment of methemoglobinemia depends on the underlying cause and may include:
1. Administration of oxygen therapy to increase the amount of oxygen in the blood.
2. Use of medications to reduce the levels of methemoglobin and increase the levels of normal hemoglobin.
3. Transfusions of red blood cells to replace abnormal hemoglobin with normal hemoglobin.
4. Management of underlying medical conditions, such as infections or genetic disorders.
5. Dietary changes to address any nutritional deficiencies that may be contributing to the condition.
In severe cases of methemoglobinemia, hospitalization may be necessary to provide oxygen therapy and other treatments. In some cases, patients with methemoglobinemia may require long-term management and follow-up care to prevent complications and manage the underlying cause of the condition.
The condition is inherited in an X-linked recessive pattern, meaning that the gene for G6PD deficiency is located on the X chromosome and affects males more frequently than females. Females may also be affected but typically have milder symptoms or may be carriers of the condition without experiencing any symptoms themselves.
G6PD deficiency can be caused by mutations in the G6PD gene, which can lead to a reduction in the amount of functional enzyme produced. The severity of the condition depends on the specific nature of the mutation and the degree to which it reduces the activity of the enzyme.
Symptoms of G6PD deficiency may include jaundice (yellowing of the skin and eyes), fatigue, weakness, and shortness of breath. In severe cases, the condition can lead to hemolytic anemia, which is characterized by the premature destruction of red blood cells. This can be triggered by certain drugs, infections, or foods that contain high levels of oxalic acid or other oxidizing agents.
Diagnosis of G6PD deficiency typically involves a combination of clinical evaluation, laboratory tests, and genetic analysis. Treatment is focused on managing symptoms and preventing complications through dietary modifications, medications, and avoidance of triggers such as certain drugs or infections.
Overall, G6PD deficiency is a relatively common genetic disorder that can have significant health implications if left untreated. Understanding the causes, symptoms, and treatment options for this condition is important for ensuring appropriate care and management for individuals affected by it.
The symptoms of SARS typically begin within 2-10 days after exposure and can include:
* Fever (>38°C)
* Chills
* Headache
* Body aches
* Fatigue
* Dry cough
* Shortness of breath or difficulty breathing
* Pneumonia
In severe cases, SARS can progress to respiratory failure, which can lead to death. The virus is highly contagious and can be spread through close contact with an infected person, as well as through contact with contaminated surfaces and objects.
SARS was first identified in 2003 in China, and it quickly spread to other countries around the world, causing a global outbreak. The World Health Organization (WHO) declared SARS a Public Health Emergency of International Concern (PHEIC) in March 2003, and it was eventually contained through a combination of measures such as isolation of infected individuals, contact tracing, and the use of personal protective equipment (PPE).
There is no specific treatment for SARS, but supportive care such as oxygen therapy and mechanical ventilation may be provided to help manage symptoms. Antiviral medications have been developed to treat SARS, but their effectiveness is still being studied. Prevention of SARS primarily relies on good hygiene practices, such as frequent handwashing, avoidance of close contact with people who are sick, and wearing PPE when caring for infected individuals.
Overall, Severe Acute Respiratory Syndrome (SARS) is a serious and potentially life-threatening respiratory illness that can be spread through close contact with an infected person. While it has been largely contained through public health measures, it remains important to continue practicing good hygiene and be aware of the risks of SARS in order to prevent its spread.
There are two main types of hemolysis:
1. Intravascular hemolysis: This type occurs within the blood vessels and is caused by factors such as mechanical injury, oxidative stress, and certain infections.
2. Extravascular hemolysis: This type occurs outside the blood vessels and is caused by factors such as bone marrow disorders, splenic rupture, and certain medications.
Hemolytic anemia is a condition that occurs when there is excessive hemolysis of RBCs, leading to a decrease in the number of healthy red blood cells in the body. This can cause symptoms such as fatigue, weakness, pale skin, and shortness of breath.
Some common causes of hemolysis include:
1. Genetic disorders such as sickle cell anemia and thalassemia.
2. Autoimmune disorders such as autoimmune hemolytic anemia (AIHA).
3. Infections such as malaria, babesiosis, and toxoplasmosis.
4. Medications such as antibiotics, nonsteroidal anti-inflammatory drugs (NSAIDs), and blood thinners.
5. Bone marrow disorders such as aplastic anemia and myelofibrosis.
6. Splenic rupture or surgical removal of the spleen.
7. Mechanical injury to the blood vessels.
Diagnosis of hemolysis is based on a combination of physical examination, medical history, and laboratory tests such as complete blood count (CBC), blood smear examination, and direct Coombs test. Treatment depends on the underlying cause and may include supportive care, blood transfusions, and medications to suppress the immune system or prevent infection.
Gamma-butyrobetaine dioxygenase
Vitamin C megadosage
Periodontal fiber
Mountain ration
Protein primary structure
Argument from poor design
Hugh Macdonald Sinclair
Canadian health claims for food
Atrophic gastritis
Vitamin C
Myxobolus cerebralis
Scurvy
Iron-deficiency anemia
Chemistry of ascorbic acid
Vitamin C (disambiguation)
Dopamine beta hydroxylase deficiency
Almroth Wright
Mercury regulation in the United States
L-gulonolactone oxidase
Lipoprotein(a)
Diiodohydroxyquinoline
Hydroxylation
History of military nutrition in the United States
Staple food
History of life
Dopamine
Plateau principle
Latent iron deficiency
Tetrahydrobiopterin
Jagannath Ganguly
Tudor Rickards
African nightshade
Glucose meter
Ozone
Oxidative stress
Alkaptonuria
Hans Konrad Biesalski
Complications of diabetes
Sepsis
Selenium
Vegetarian and vegan dog diet
Urine test strip
Edward Bright Vedder
First Nations nutrition experiments
Archie Kalokerinos
Sustainable Development Goal 2
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Dietary supplement
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Discover Vitamin C
Scurvy13
- Ascorbic acid deficiency gives rise to the appearance of scurvy. (nih.gov)
- www.thecanadianencyclopedia.ca/en/article/scurvy. (thecanadianencyclopedia.ca)
- Scurvy is a disease caused by a dietary deficiency of vitamin C (ascorbic acid). (thecanadianencyclopedia.ca)
- Ascorbic acid deficiency frequently develops into SCURVY in young children fed unsupplemented cow's milk exclusively during their first year. (nih.gov)
- For vitamin C, this is the amount necessary to prevent scurvy, a disease caused by vitamin C deficiency. (nih.gov)
- Many people associate to terms scurvy, pellagra, beriberi, rickets or ariboflavinosis with dietary deficiency. (nih.gov)
- Throughout history humans have suffered from the vitamin C-deficiency disease known as scurvy. (nursingreviewer.com)
- In 1742, British physician James Lind wrote the first real scientific discussion about the possibility that scurvy was a dietary deficiency. (nursingreviewer.com)
- Although scurvy is now rare in our society, subclinical or marginal vitamin C deficiency is common, especially in the elderly. (nursingreviewer.com)
- Scurvy is a disease resulting from a lack of vitamin C (ascorbic acid). (meatrition.com)
- Scurvy is a condition characterised by general weakness, anaemia, gingivitis (gum disease), and skin haemorrhages caused by a prolonged deficiency of vitamin C in the diet. (ozarcare.com)
- Known colloquially as scurvy, a diminutive of the Latin word scorbutus, severe vitamin C deficiency derives from a dearth of vitamin C in the diet. (internal-medicine-centers.com)
- Similarities between the symptoms of copper deficiency in animals and scurvy in humans would tend to suggest that there is a mutual synergism between ascorbic acid and copper. (robertbarrington.net)
Ascorbate4
- Remediation of ascorbate deficiency in tissue culture restores the physiological state of many cellular processes and it should improve a currently limited toxicity predictability of in vitro bioassays. (nih.gov)
- L-Ascorbic Acid (CAS No.: 50-81-7) Vitamin C is also known as Ascorbic Acid or Ascorbate in the dietary supplement industry. (aapharmachem.com)
- IMMUNOGARD is a nutritional supplement containing 500mg of Ascorbic Acid (equivalent to 568.18mg Sodium Ascorbate) and 10mg Elemental Zinc (equivalent to 27.5mg Zinc Sulfate Monohydrate). (vpharma.ph)
- In high ascorbate conditions, only 33% of copper can be immunoprecipitated with antibodies to superoxide dismutase, but when ascorbic acid is absent, 94% of the copper is immunoprecipitable. (robertbarrington.net)
Concentrations9
- More recent results show that intracellular ascorbic acid also prevents the increase in endothelial barrier permeability caused by high glucose concentrations. (nih.gov)
- The mechanism of this barrier protection is proposed to involve ascorbic acid scavenging of reactive oxygen species generated in response to high glucose concentrations, as well as ascorbic acid recycling of tetrahydrobiopterin to prevent uncoupling of endothelial nitric oxide synthase. (nih.gov)
- This hypothesis and mechanism will be tested in endothelial cells cultured at hyperglycemic glucose concentrations and extended to novel mouse models of ascorbic acid deficiency or repletion in the context of streptozotocin-induced diabetes. (nih.gov)
- The first aim asks how physiologic ascorbic acid concentrations support basal nitric oxide generation in endothelial cells and whether this contributes to the ability of the vitamin to tighten the endothelial barrier to passage of large molecules. (nih.gov)
- The second aim tests how ascorbic acid prevents endothelial barrier failure caused by high glucose concentrations, again with focus on a mechanism involving ascorbic acid prevention of uncoupling of nitric oxide synthase. (nih.gov)
- Since many of the deleterious effects of high glucose concentrations are caused by activation of the Receptor for Advanced Glycation End-products (RAGE), the third aim will test the mechanism by which ascorbic acid prevents increased endothelial permeability due to RAGE ligands. (nih.gov)
- The fourth aim will extend the in vitro studies to novel mouse models in which ascorbic concentrations can be manipulated by dietary and genetic means to test effects of increased oxidative stress due to streptozotocin- induced diabetes. (nih.gov)
- Ascorbic acid may acidify the urine and lower serum concentrations of amphetamine by increasing renal excretion (as reflected by changes in amphetamine urine recovery rates). (ascoriv.com)
- It has been reported that concurrent administration of ascorbic acid and fluphenazine has resulted in decreased fluphenazine plasma concentrations. (ascoriv.com)
Supplements1
- Vitamin C deficiency treatment also may include vitamin C supplements to restore your body's ascorbic acid levels, when diet alone fails in doing so. (internal-medicine-centers.com)
Folic1
- Apple juice vinegar, for example, is high in nutrients and minerals such as L-ascorbic acid, folic acid, and niacin, all of which are powerful cancer-prevention agents that help to eliminate free radicals and relieve oxidative pressure. (theamberpost.com)
Vitamin C in the body1
- Vitamin C Chewable Tablet With Zinc is a supplement of vitamin C (ascorbic acid) that restores the nutritional deficiency of vitamin C in the body and helps improve an individual's overall health. (ozarcare.com)
Diseases2
Nutrient5
- Our research focuses on vitamin C (ascorbic acid) as a model nutrient. (nih.gov)
- We seek a functional basis for nutrient recommendations, rather than relying on preventing deficiency-the previous method used for many years. (nih.gov)
- For many years, they have based these on the least amount of the nutrient needed to prevent clinical deficiency. (nih.gov)
- Your body relies on an essential nutrient, vitamin C (ascorbic acid), to grow and repair tissues, prevent cell damage and produce collagen and blood vessels. (internal-medicine-centers.com)
- Vitamin C, also known as ascorbic acid, is a nutrient essential for healing your body and can help a strong immune system. (biotherm.ca)
Supplementation2
- Ascorbic acid supplementation helps in reducing Vitamin C deficiency. (aapharmachem.com)
- The order of ascorbic acid supplementation or non-supplementation will be decided by random. (clinicaltrials.gov)
Vitro1
- Bleomycin is inactivated in vitro by ascorbic acid. (ascoriv.com)
Abstract1
- Abstract: DESCRIPTION (provided by applicant): Plasma and cell levels of vitamin C, or ascorbic acid, are decreased about 50% in persons with type II diabetes in sub-optimal glycemic control, despite presumably adequate dietary intakes. (nih.gov)
Nutritional2
- Iron deficiency is the most common known form of nutritional deficiency. (cdc.gov)
- To better understand diet and nutritional deficiency in the context of socioeconomic status, metabolic disease and non-specific indicators of stress must be fully explored. (theposthole.org)
Doses3
- Acute and chronic oxalate nephropathy have been reported with prolonged administration of high doses of ascorbic acid. (ascoriv.com)
- Limited case reports have suggested interference of ascorbic acid with the anticoagulation effects of warfarin, however, patients on warfarin therapy treated with ascorbic acid doses up to 1000 mg/day (5 times the largest recommended single dose) for 2 weeks (twice the maximum recommended duration), no effect was observed. (ascoriv.com)
- Kidney stones or other very bad kidney problems have rarely happened in people taking high doses of Protexin (ascorbic acid (vitamin C) solution, liquid, and syrup) for a long time. (drugs.com)
Riboflavin1
- Marginal deficiencies of thiamin, riboflavin, vitamin B-6 and vitamin C : prevalence and functional consequences in man / Eric Jan van der Beek. (who.int)
G6PD3
Copper deficiency1
- It is known experimentally hat copper deficient animals can have their lives shortened by adding 0.1 to 1% ascorbic acid to their diets, which worsens the copper deficiency symptoms in the animals. (robertbarrington.net)
Glucose10
- Vitamin C or ascorbic acid is a hydrosoluble vitamin derived from glucose metabolism. (nih.gov)
- This decrease is due to oxidative stress from excess glucose and fatty acid metabolism. (nih.gov)
- We report a case of intravascular hemolysis and methemoglobinemia, precipitated by severe acute respiratory syndrome coronavirus 2 infection, in a patient with undiagnosed glucose-6-phosphate dehydrogenase deficiency. (cdc.gov)
- Glucose 6‐phosphate dehydrogenase (G6DP) deficiency is an X-linked enzymatic disorder that affects 400 million persons worldwide and has a high prevalence (5%-20%) in African and Asian populations ( 2 ). (cdc.gov)
- Facilitated glucose transporters mediate transport of the oxidation product of ascorbic acid, dehydroascorbic acid. (nih.gov)
- Hemolysis has been reported with administration of ascorbic acid in patients with glucose-6-phosphate dehydrogenase deficiency. (ascoriv.com)
- Patients with glucose-6-phosphate dehydrogenase deficiency may be at increased risk for severe hemolysis during treatment with ascorbic acid. (ascoriv.com)
- Monitor hemoglobin and blood count and use a reduced dose of ASCOR ® in patients with glucose-6-phosphate dehydrogenase deficiency. (ascoriv.com)
- Ascorbic acid may interfere with laboratory tests based on oxidation-reduction reactions, including blood and urine glucose testing, nitrite and bilirubin levels, and leucocyte count testing. (ascoriv.com)
- Because ascorbic acid is a strong reducing agent, it can interfere with numerous laboratory tests based on oxidation-reduction reactions (e.g. glucose, nitrite and bilirubin levels, leukocyte count, etc. (ascoriv.com)
Symptoms5
- Deficiency of the vitamin causes a breakdown in the binding function of these tissues, producing a series of characteristic signs and symptoms: weakness, lethargy, irritability, anemia, purple spongy gums which bleed freely, loosening teeth, the reopening of healed scars (including refracturing of bone) and hemorrhaging in the mucous membranes and skin. (thecanadianencyclopedia.ca)
- You may not notice the symptoms of iron deficiency anemia. (healthlinkbc.ca)
- To diagnose iron deficiency anemia, your doctor will do a physical examination and ask about your health and symptoms. (healthlinkbc.ca)
- Early symptoms of deficiency include weakness, feeling tired and sore arms and legs. (meatrition.com)
- Your healthcare provider can identify vitamin C deficiency by the symptoms with which you present during a physical exam and can confirm the deficiency by administering a blood test to measure vitamin C levels. (internal-medicine-centers.com)
Iron-defici10
- In the past three decades, increased iron intake among infants has resulted in a decline in childhood iron-deficiency anemia in the United States. (cdc.gov)
- In the United States, the prevalence of iron-deficiency anemia among children declined during the 1970s in association with increased iron intake during infancy (1-3). (cdc.gov)
- CDC requested the Institute of Medicine to convene an expert committee to develop recommendations for preventing, detecting, and treating iron-deficiency anemia among U.S. children and U.S. women of childbearing age. (cdc.gov)
- Iron deficiency anemia means that your body does not have enough iron. (healthlinkbc.ca)
- Iron deficiency anemia means that your body doesn't have enough iron to make red blood cells . (healthlinkbc.ca)
- Iron deficiency anemia is caused by low levels of iron in the body. (healthlinkbc.ca)
- How is iron deficiency anemia treated? (healthlinkbc.ca)
- To treat iron deficiency anemia, your doctor will try to find the cause of the anemia and treat that problem. (healthlinkbc.ca)
- You can help prevent iron deficiency anemia by eating iron-rich foods every day. (healthlinkbc.ca)
- Bleeding inside the body is the most common cause of iron deficiency anemia in men and in women after menopause. (healthlinkbc.ca)
Oxidative3
- This leads to the main hypothesis of this proposal that ascorbic acid helps to maintain endothelial barrier function in vivo and especially in the face of diabetes-induced oxidative stress. (nih.gov)
- Key to his aim is to assess whether diabetes-induced oxidative stress and subsequent endothelial dysfunction is worsened by depletion of ascorbic acid and reversed by its repletion. (nih.gov)
- G6DP deficiency increases the risk for intravascular hemolysis upon exposure to oxidative agents, such as fava beans, sulfonamides, and hydroxychloroquine, the subject of clinical trials for persons with SARS-CoV-2 infection. (cdc.gov)
Anemia5
- As a consequence, the use of screening tests for anemia has become a less efficient means of detecting iron deficiency in some populations. (cdc.gov)
- These recommendations update the 1989 'CDC Criteria for Anemia in Children and Childbearing-Aged Women' (MMWR 1989;38(22):400-4) and are the first comprehensive CDC recommendations to prevent and control iron deficiency. (cdc.gov)
- Because of this decline, the value of anemia as a predictor of iron deficiency has also declined, thus decreasing the effectiveness of routine anemia screening among children. (cdc.gov)
- Iron deficiency is the most common cause of anemia. (healthlinkbc.ca)
- El síndrome urémico hemolítico (SUH), descripto en 1955, se caracteriza por la tríada de anemia hemolítica no inmunomediada, trombocitopenia y lesión renal aguda. (bvsalud.org)
Malnutrition2
Metabolism1
- However, the role of ascorbic acid on copper metabolism is not limited to the gastrointestinal tract, and there is evidence to suggest that ascorbic acid plays an important role in copper transport and cellular uptake. (robertbarrington.net)
Severe1
- occurs when you have a severe lack of vitamin C ( ascorbic acid ) in your diet. (nih.gov)
Vitamins1
- Deficiency of some vitamins and minerals can cause DNA damage. (nih.gov)
Hyaluronic Acid2
- Hyaluronic Acid (CAS # 9004-61-9) is a dietary supplement made by using synthesized forms of the compound. (aapharmachem.com)
- Hyaluronic acid is found naturally in the human body. (aapharmachem.com)
Ferrous fumarate2
- Ferrous fumarate (a form of iron) is often added to foods in an effort to prevent iron deficiency. (clinicaltrials.gov)
- They will consume a meal of a bread muffin labelled with 4mg of iron-57 as ferrous fumarate, and a glass of apple juice containing 0 or 25mg ascorbic acid. (clinicaltrials.gov)
Humans2
- Humans cannot synthesize ascorbic acid as they lack an enzyme called gulonolactone oxidase. (nih.gov)
- Ascorbic acid is thought to interact with copper in the gastrointestinal tract of humans and decrease the absorption of the mineral. (robertbarrington.net)
Weakness1
- A condition due to a dietary deficiency of ascorbic acid (vitamin C), characterized by malaise, lethargy, and weakness. (nih.gov)
Body6
- Ascorbic acid , or vitamin C, aids in many functions of the body, including the absorption of iron. (nih.gov)
- When isolated into artificial commercial forms, like ascorbic acid, these purified synthetics act as drugs in the body. (cassiopaea.org)
- It is used if the diet does not provide enough vitamin C and to manage certain conditions caused due to vitamin C deficiency in the body. (ozarcare.com)
- Triglycerides are formed by joining three fatty acids to a glycerin backbone by the body. (aapharmachem.com)
- It also contains L-ascorbic acid, which may help with promoting healing in the body, strengthening resistance, and resolving deficiencies. (theamberpost.com)
- Since the body doesn't produce vitamin C, it is easy to suffer from vitamin C deficiency if your diet doesn't include fruits and vegetables. (biotherm.ca)
Urine2
- Acidification of the urine by ascorbic acid may cause precipitation of cysteine, urate or oxalate stones. (ascoriv.com)
- In addition, acidification of urine by ascorbic acid will alter the excretion of certain drugs affected by the pH of the urine (e.g. fluphenazine) when administered concurrently. (ascoriv.com)
Connective1
- Bone and connective tissue defects, anaemia and subcutaneous haemorrhaging are seen in both deficiency states. (robertbarrington.net)
Dietary supplement2
- L-Tyrosine (CAS# 60-18-4) is a type of amino acid and dietary supplement that is growing in use. (aapharmachem.com)
- Carnitine or L- Carnitine Base is a form of Amino Acid and is used a dietary supplement. (aapharmachem.com)
Facilitate2
- Moreover, modification by ascorbic acid may facilitate application of hpESCs to clinical settings in the future by enhancing their pluripotency. (biomedcentral.com)
- Ceruoplasmin is know to undergo reactions in response to reducing agents such as ascorbic acid, which may facilitate the exchange of copper from ceruoplasmin to cells. (robertbarrington.net)
Fatty3
- Typically, MCT oil and MCT oil powder is processed from Coconut and contains unique fatty acids. (aapharmachem.com)
- Unsaturated fats are mostly shorter-chain fatty acids consisting of 8 to 14 carbons. (aapharmachem.com)
- Saturated fats are mostly long-chain fatty acids consisting of 16 to 20 carbons. (aapharmachem.com)
Decrease1
- Ascorbic acid is thought to decrease copper absorption because it reduces copper from its cupric state (Cu 2+ ) to its less absorbable cuprous state (Cu 1+ ). (robertbarrington.net)
Treatment9
- Ascorbic Acid in Cancer Treatment: Let the Phoenix Fly. (nih.gov)
- This presentation is designed to clarify and simplify some of the newer aspects of nutrition for the practicing physician with special emphasis on diagnosis and treatment of vitamin deficiency states. (nih.gov)
- Patients with renal disease including renal impairment, history of oxalate kidney stones, and geriatric patients may be at increased risk for oxalate nephropathy while receiving treatment with ascorbic acid. (ascoriv.com)
- Pediatric patients less than 2 years of age may be at increased risk for oxalate nephropathy during treatment with ascorbic acid because their kidneys are immature. (ascoriv.com)
- Standard monitoring for anti-coagulation therapy should continue during ascorbic acid treatment, as per standard of care. (ascoriv.com)
- If you suspect you are suffering from insufficient levels of vitamin C, it is important to meet with a healthcare provider who can determine the underlying cause of your vitamin C deficiency and develop a treatment plan that addresses your body's unique needs. (internal-medicine-centers.com)
- Schedule a consultation with a qualified healthcare provider in Richfield - Minneapolis that specializes in vitamin C deficiency treatment . (internal-medicine-centers.com)
- Treatment with ascorbic acid, rescued their ability to support teratoma formation and altered the expression profiles of paternally expressed genes in hpESCs that could not form teratoma easily. (biomedcentral.com)
- IMMUNOGARD is for the treatment and prevention of Vitamin C and Zinc deficiencies, it helps strengthen the immune system of the consumers especially through the pandemic. (vpharma.ph)
Excess1
- Vitamin C (ascorbic acid) deficiency and excess. (medlineplus.gov)
Protects1
- ascorbic acid protects the functional parts of the vitamin from rapid oxidation or breakdown. (cassiopaea.org)
Naturally1
- The ascorbic acid you buy at the grocery store every few weeks, thinking you are buying Vitamin C, is just a chemical copy of naturally occurring ascorbic acid, which itself is still only a fraction of the actual Vitamin C. Real vitamin C is part of something living, and as such, can impart life. (cassiopaea.org)
Drugs1
- You must check to make sure that it is safe for you to take Protexin (ascorbic acid (vitamin C) solution, liquid, and syrup) with all of your drugs and health problems. (drugs.com)
Prevent3
- To address the changing epidemiology of iron deficiency in the United States, CDC staff in consultation with experts developed new recommendations for use by primary health-care providers to prevent, detect, and treat iron deficiency. (cdc.gov)
- These findings, plus increased knowledge about screening for iron status, raised questions about the necessity and effectiveness of existing U.S. programs to prevent and control iron deficiency. (cdc.gov)
- Alternatively, ascorbic acid may inhibit the binding of copper to metallothionein and delay or prevent its absorption through the intestinal mucosa. (robertbarrington.net)
Clinical1
- On going multiple clinical trials in cancer and sepsis using pharmacologic ascorbic acid are based on our work. (nih.gov)
Commonly2
- Deficiency in vitamin C may accompany wars and famine, but it is most commonly associated with post-Renaissance European exploration , particularly ocean voyages. (thecanadianencyclopedia.ca)
- Rickets is most commonly linked with a lack of sunlight exposure, rather than a dietary deficiency. (theposthole.org)
Search1
- Results of search for 'su:{Ascorbic acid deficiency. (who.int)
Common1
- Iron deficiency is a common health problem worldwide. (clinicaltrials.gov)
Reactions1
- The above adverse reactions associated with the use of ascorbic acid were identified in the literature. (ascoriv.com)
Form2
- A hydroxylated form of the imino acid proline. (bvsalud.org)
- Fish were fed 1 of 11 semi-purified diets containing equivalent of 0, 50, 100, 200, 400, and 800 mg ascorbic acid (AA)/kg diet in the form of AMP-Ca or AMP-Na/Ca for 12 weeks. (usda.gov)
Cells1
- Cell studies have shown that ascorbic acid stimulates the uptake of copper from ceruoplasmin to cultured cells by approximately 10-fold, suggesting a role for ascorbic acid in cellular copper uptake. (robertbarrington.net)