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Drug-Nutrient Interactions are a 2-WAY STREET:
- 1.) Nutrients affect Drugs
- 2.) Drugs affect Nutrients
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3 Nutrient Effects on Drugs:
- 1.) May alter extent of drug absorption by: alterations in GI pH & mobility; Formation of non-absorbable precipitates &/or chelates
- 2.) May alter drug metabolism: grapefruit juice increases bioavailability & potency of Calcium Channel Blockers; Cholesterol lowering drugs (statins), when taken with grapefruit juice can RAISE the pt's risk of muscle toxicity
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DRUG EFFECTS ON NUTRIENTS
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Drugs may ALTER Food Intake by Causing: (3)
- 1.) CHANGES in appetite
- 2.) CHANGES in senses of taste & smell
- 3.) ADVERSE GI effects
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Drugs may Affect Nutrient Absorption by Causing 5 Things:
- 1.) Direct injury to the intestinal mucosa
- 2.) Alterations in GI pH & motility
- 3.) Modification of bacterial flora composition
- 4.) Formation of NON-absorbable precipitates &/or Chelates
- 5.) Solubilization
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Drugs can Affect Nutrient Excretion by: (3)
- 1.) DISPLACING nutrients from their binding sites
- 2.) Chelation
- 3.) REDUCED Renal (kidney) absorption
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Chelation -
- Chelation is the use of a chemical substance to bind molecules, such as metals or minerals, & hold them tightly so they can be removed from the body.
- Chelation has been scientifically proven to REMOVE excess or toxic metals BEFORE they can cause damage to the body.
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Medications can cause side effects that can affect Nutrition by changing a person's: (3)
- 1.) Appetite
- 2.) Taste & Smell
- 3.) Ability to eat
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7 Oral Effects of Medications:
- 1.) Gingival Hyperplasia
- 2.) Gingivitis
- 3.) Mucositis
- 4.) Oral Candidiasis
- 5.) Tooth discoloration
- 6.) Direct tooth damage
- 7.) Xerostomia
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DRUG CATEGORIES/MEDICATIONS & NUTRIENTS THEY AFFECT:
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Anticoagulants: (1)
Warfarin (Coumadin): affects Vitamin K
creates partial deficiency of the active form of Vitamin K involved in the posttranslational modification of Vitamin K dependent coagulation factors- Requires diet control of Vitamin K intake
- NO specific oral effects
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Hydantoins: (1)
Phenytoin (Dilantin): Vitamin D; Calcium; Folate (Folic Acid)
- Vitamin D & Calcium: secondary impairment of Calcium absorption with INCREASED risk for Osteomalacia or Rickets; Gingival Hyperplasia
Folate/Folic Acid: INCREASED risk for folate deficiency, cervical dysplasia, & elevated homocysteine levels associated with Cardiovascular Disease; NO specific oral effects
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Non-Steroidal Anti-Inflammatories (NSAIDS): (4)
- 1.) Aspirin: Folate (Folic Acid), Vitamin C, Iron
- 2.) Sulindac (Clinoril): Folate (Folic Acid)
- 3.) Naproxen (Naprosyn): Folate (Folic Acid)
- 4.) Ibuprofen (Motrin/Advil) : Folate (Folic Acid)
Folate/Folic Acid: INCREASED risk for Folate deficiency implicated in birth defects, cervical dysplasia, & elevated homocysteine levels associated with Cardiovascular Disease; NO specific oral defects
Vitamin C & Iron: INCREASED risk of GI mucosa damage leading to Iron deficiency, Anemia, & DECREASED absorption of Vitamin C; NO specific oral effects
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Blood Thinners: (1)
Warfarin (Coumadin): HIGH Vitamin K intake
HIGH Vitamin K intake: DECREASES drug effectiveness
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Calcium Channel Antagonists: ( 5)
- 1.) Amlodipine (Norvasc): HIGH Vitamin C intake
- 2.) Diltiazem (Cardizem): HIGH Vitamin C intake
- 3.) Nifedipine (Procardia): HIGH Vitamin C intake
- 4.) Verapamil (Isoptin): HIGH Vitamin C intake
- 5.) Benzodiazepines (Midazolam, Triazolam): Interact with Grapefruit Juice
- HIGH Vitamin C intake: DECREASES drug absorption; NO specific nutritional effects; Gingival Hyperplasia - encourage proper oral hygiene
- Grapefruit Juice: consumption with Grapefruit Juice can INCREASE the activity of the drug; NO specific oral effects
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Antacids: (3)
- 1.) Aluminum (Amphogel): Phosphorus, Vitamin B12, Folate/Folic Acid, Iron, Zinc
- 2.) Aluminum & Magnesium (Maalox, Mylanta): Vitamin B12, Folate/Folic Acid, Iron, Zinc
- 3.) Sodium Bicarbonate (Alka-Seltzer): Vitamin B12, Folate/Folic Acid, Iron, Zinc
- Phosphorus: INCREASES risk for Bone Demineralization & induced Hypophosphatemia with proximal limb muscle weakness; NO specific oral effects
- Vitamin B12 & Folate: INCREASED RISK for Folate deficiency implicated in Birth Defects, Cervical Dysplasia, & elevated Homocysteine levels associated with Cardiovascular Disease; NO specific oral effects
- Iron & Zinc: INCREASED RISK for Iron-Deficiency Anemia & immune function abnormalities/immunosuppression; NO specific oral effects
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5 Drug Categories/Medications that Grapefruit Juice Affects:
- 1.) Antihistamines: Terfenadine - INCREASES drug effects; INCREASES activity of drug; may contribute to Xerostomia
- 2.) Antihyperlipidemics: Atorvastatin (Lipitor) & Simvastatin (Zocor) - Muscle aches & weakness
- 3.) Antihypersensitives (Vasodilators): Felodipine (Plendil, Renedil) - INCREASES drug effects; INCREASES blood levels of drug
- 4.) Calcium Channel Antagonists:
Benzodiazepines (Midazolam, Triazolam) - INCREASES activity of drug; NO specific oral effects- 5.) Hormones:
Conjugated estrogens (Premarin), Esterfied Estrogens (Ogen), Ethinyl Estradiol - INCREASES drug effects & cause Gingivitis
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Gingival Hyperplasia:
- OVERGROWTH of the gingival tissue
- COMMON complication of Phenytoin (Dilantin) therapy (Hydantoins or Anti-epileptic/Anti-seizure Drug) & Calcium Channel Blockers
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Gingivitis:
Associated with the use of Hormone Therapy: Corticosteroids, Androgens, Estrogens, Progestins
Symptoms: tenderness, swelling, MINOR bleeding of gums
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Clinical symptoms of Plaque-Induced Gingivitis are INTENSIFIED during ELEVATED blood levels of Hormones from: (4)
- 1.) Immune suppression
- 2.) Increased Fluid Exudation
- 3.) Stimulation of Bone Resorption
- 4.) Stimulation of Fibroblast activity
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Nearly __ % of patients treated with Chemo Agents (Chemotherapy) develop oral side effects.
40 %
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3 Side Effects of Chemo Agents (Chemotherapy):
- 1.) Mucositis: DECREASE in surface thickness & keratinization of mucous membrane in mouth (ulcer)
- 2.) Bleeding: may compromise pt's nutritional status
- 3.) Infection: may compromise pt's nutritional status
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3 Treatments of Gingivitis & Other Oral Muscosa Effects:
- 1.) Mouthwashes w/Local Anesthetics: Lidocaine, Dyclonine
- 2.) Histamines: Diphenhydramine, Corticosteroids
- 3.) Antifungals: Nystatin
Treatment is palliative! (focused on relieving & preventing pain)
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Tetracyclines & Tooth Discoloration:
Tetracyclines can deposit in the Dentin & Enamel of developing teeth & cause PERMANENT tooth discoloration of yellow to gray-brown
Tetracycline Antibiotics should be AVOIDED in children < 8 years old
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3 Causes of SUPERFICIAL Staining of Teeth:
- 1.) Chlorahexadine (CHX) Mouthrinse: chewing Sugar-Free Gum for 20 minutes AFTER use of Chlorahexidine (CHX) Rinse may DECREASE staining
- 2.) Liquid Iron
- 3.) Tobacco
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Xerostomia & Medications:
- Drugs that cause dry mouth can INCREASE caries risk
- Drugs with Anticholinergic side effects REDUCE saliva production: Tricyclic Antidepressants, Phenothiazine Antipsychotics
- Rx artificial saliva (saliva supplements), oral Pilocarpine, & use of sugarless candies or lozenges
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5 Reasons WHY Xerostomia Affects Older People:
- 1.) Medication induced
- 2.) Medical condition induced
- 3.) Therapy induced
- 4.) Recession from Periodontal disease
- 5.) Abrasion from poor brushing technique
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4 Nutritional Considerations of Xerostomia:
- 1.) Inadequate intake of Nutrients
- 2.) Taste changes
- 3.) Lack of interest in eating
- 4.) Poor appetite
Rx appetizing & inviting foods; Presentation, appearance, appeal
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9 Nutrient Deficiencies of Xerostomia:
- 1.) Vitamin A
- 2.) Vitamin C
- 3.) Vitamin B6
- 4.) Fiber
- 5.) Potassium
- 6.) Calcium
- 7.) Zinc
- 8.) Protein
- 9.) Fluids
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7 Recommendations for Xerostomic Patients:
- 1.) Fluids with & between meals
- 2.) Nutrient-dense, soft, moist foods
- 3.) Sauces & gravies
- 4.) Non-nutritive sweetener use
- 5.) Ice chips
- 6.) Sour, tart items to stimulate saliva
- 7.) Avoid: dry, crumbly, sticky, spicy, alcohol mouthrinses, alcohol, tobacco, caffeine - makes mouth dryer
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Drug Treatments for Asthma & Tooth Damage:
- Certain drug treatments for Asthma may cause tooth damage
- Powdered form of most drugs: pH of 5.5
- Tooth enamel begins to dissolve(demineralization/caries): pH of 5.5Use mouthrinse after EVERY inhalation & use spacer devices to PREVENT Erosion
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ORAL CANDIDIASIS (THRUSH)
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Oral Candidiasis (Thrush):
- is a fungal infection of the oral cavitycaused by Candida albicans, a resident fungus of the normal oral flora
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2 Medications that Cause Oral Candidiasis (Thrush):
- 1.) Nasal Steroids (inhaled steroids)
- 2.) Systemic Steroids &/or Antibiotics concurrently (taking both together)
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Treatment for Oral Candidasis (Thrush):
Rx pt's to use mouthrinse AFTER every use of those 2 medications (Nasal/inhaled Steroids & Systemic Steroids w/ OR w/out Antibiotics)
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Chronic Hyperplastic Candidosis:
white plaque, usually NEAR the angle of mouth & cheek mucosa
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8 Predisposing Factors of Chronic Hyperplastic Candidosis:
- 1.) Antibiotic Therapy
- 2.) Corticosteroid Therapy
- 3.) Xerostomia
- 4.) Diabetes Mellitus
- 5.) HIV/AIDS
- 6.) Chemotherapy & Radiation
- 7.) Immunosuppression
- 8.) POOR Oral Hygiene
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EFFECTS OF DRUGS ON NUTRITION
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3 Drugs that Affect Nutrition:
- 1.) Oral Contraceptives: DEPLETES many B Vitamins, Folic Acid/Folate, Vitamin C, Magnesium, Selenium, Tyrosine (amino acid), Zinc
- 2.) Anti-Diabetes Drugs: Sulfonylureas (Glipizide) -CoQ10; Biquanides (Metaformin)- Vitamin B12
- 3.) Anti-Ulcer & Heartburn Drugs: H2 Receptor Antagonists/H2 Blockers deplete Vitamin B12, Folate/Folic Acid, Vitamin D, Calcium, Iron, Zinc
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5 Effects of Birth Control & Folate (Folic Acid) Depletion
- 1.) Anemia
- 2.) Birth Defects
- 3.) Cervical Dysplasia
- 4.) Depression
- 5.) INCREASED RISK of Breast & Colorectal Cancer
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Birth Control & B Vitamins:
- Folic Acid, Vitamins B6 & B12: are necessary to metabolize homocysteine (toxic amino acid); elevated homocysteine is a MAJOR risk for plaque build-up in the arteries (Heart Attack, Stroke)
- Vitamin B6: converts Tryptophan to Serotonin; DEPLETION of B6 can cause Depression & Insomnia
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Birth Control & Vitamin C:
- Birth Control causes up to 40% DECLINE in Vitamin C levels in the blood
This leads to: WEAKENED immune system, POOR wound healing, EASY bruising
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Birth Control & Zinc:
Zinc deficiency impacts the immune system (immunosuppression)
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10 Things Magnesium deficiency due to Birth Control can Cause:
- 1.) Osteoporosis
- 2.) Muscle Cramps
- 3.) Weakness
- 4.) Insomnia
- 5.) Anxiety
- 6.) Depression
- 7.) Blood Clots
- 8.) HPT (Hyperthyroidism?)
- 9.) IRREGULAR Heartbeat (Heart Arrhythmia)
- 10.) INCREASED RISK of Heart Attack
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2 Anti-Diabetes Drugs & Nutrient Deficiencies:
- 1.) Sulfonylureas (Glipizide)
- 2.) Biquanides (Metformin)
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1.) Sulfonylureas (Glipizide):
inhibit enzymes necessary for CoQ10 synthesisCoQ10 is an antioxidant that is important for pancreatic production of insulin & for heart health
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2.) Biquanides (Metformin)
NEGATIVELY impacts the production of intrinsic factor & causes B12 depletion
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Anti-Ulcer & Anti-Heartburn Medications & Nutrient Deficiencies:
- Acidity level of GI Tract is CRITICAL for the absorption of MANY nutrients
- H2 Receptor Antagonists (H2 Blockers) DEPLETE Vitamin B12, Vitamin D, Calcium, Folate (Folic Acid), Iron, Zinc
- Vitamin D depletion causes skeletal problems, muscle weakness, tooth decay, hearing loss
- Calcium depletion causes Osteoporosis, Heart & Blood Pressure irregularities, & Tooth Decay
- Iron deficiency causes hair loss, brittle nails, Anemia, weakness, fatigue, LOW energy
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8 Vitamins:
- 1.) Vitamin A
- 2.) Vitamin B3 (Niacin)
- 3.) Vitamin B6
- 4.) Folic Acid (Vitamin B9)
- 5.) Vitamin B12
- 6.) Vitamin C
- 7.) Vitamin D
- 8.) Vitamin E
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Vitamin A:
- Fat-soluble vitamin that is crucial for: vision, cell growth, immune system function
- Can cause FAILURE of Periodontal surgery sites to heal at levels OVER 5,000 IU/day
- Do NOT take in EXCESS of 10,000 IU (2x RDA) ?
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Vitamin B3 (Niacin):
- WATER-soluble Vitamin
- > 3,000mg used for Heart Disease can cause flushing & redness of skin, Heartburn, Gastric Ulcers, INCREASED Blood-Glucose levels
- vision loss & injured Liver can ALSO occur with mega-doses
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Vitamin B6:
- WATER-soluble vitamin required for: protein metabolism, delivery of oxygen to cells, regulation of blood glucose
- EXCESSES can cause debilitating & dangerous Nerve damage
- Do NOT exceed 100 mg/day
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Vitamin B9/Folic Acid:
- WATER soluble vitamin
- Contributes to development of DNA
- Necessary for metabolism of Amino Acids
- Crucial for pregnant women
- May MASK B12 deficiency anemia
- Do NOT exceed 1,000 mcg/day
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Vitamin B12
- WATER soluble vitamin
- essential to:
- HEALTHY red blood cells & nerve cells
- creation of DNA
- Do NOT exceed 3,000 mcg/day
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Vitamin C:
WATER soluble vitamin
- NECESSARY for:
- production of collagen
- growth & repair of tissues
- HEALTHY immune system
- TOO MUCH can cause harmful oxidation in body, GI upset, interfere with activity of Anticoagulants, cause Kidney Stone formation, Gout
- NO MORE than 2,000 mg/day
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Vitamin D:
- FAT-soluble vitamin
- EXCESSIVE amounts can lead to Bone pain, Nausea, Vomiting, Kidney Stone, defects of developing teeth, & Hypercalcification of soft tissue, bones, brain, nerves, & arteries
- Do NOT take MORE THAN 10,000 IU
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Vitamin D is IMPORTANT for 2 Things:
- 1.) Normal levels of Phosphorus & Calcium in blood
- 2.) Contributes to STRONG Bones & Teeth
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Vitamin E
FAT-soluble vitamin
- Antioxidant that PROTECTS against free radicalstaking MORE THAN 1,000 mg/day can cause Heart problems, INCREASED Lipids, & EXCESSIVE bleeding
- If taken WITH Aspirin, it can cause gingival bleeding
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