Hrbl-Module 3- pharmacokinetics Flashcards

1
Q

What are the three types of Monobasic acids and what do they do?

A

1) Fatty acids- saturated fats (coconut, palm) and unsaturated (primrose, flax, general Omegas)
2) Formic acid- (nettles and pine and red ants), acts as a rubefacient
3) Acetic acid- (vinegars) balances ph, cleanses digestive tract, acts as diaphoretic

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2
Q

What are the 2 types of polybasic acids and what do they do?

A

1) oxalic acids-(dock family, leafy greens, rhubarb, parsley, balck tea)- binds with calcium and forms kidney stones. Large quantities to be avoided
2) Succinic acid- (almost all plant material)- acts as mild analgesic and plays important role in cell metabolism

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3
Q

What are the three types of Hydroxy acids and what do they do?

A

Tartaric acid- (tamarind and turmeric) slightly acidify body and act as gentle laxative
Citrus acid- (fruits and berris) converts to alkaline in body, cleanses body by stimulating liver
Malic acid- (apples) draws substances and possibly heavy metals and toxins from body

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4
Q

What is the main type of aromatic acid amd what does it do?

A

Benzoic acid-(cranberries, tolu and peru balsams) antiseptic and slightly irritating diuretic. Relieves congestion and irritation of upper respiratory tract through inhalation

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5
Q

What are the three kinds of Carbohydrates and what are their actions

A

1) monosaccharides-provide energy to cells and roughage to diet
2) disaccharides- same as monsaccharides
3) polysaccharides- appear to have a beneficial affect on immune system

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6
Q

4 types of Organic acids

A
  • Monobasic
  • Polybasic
  • Hydroxy
  • Aromatic
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7
Q

What are three types of polysaccharides?

A

1) cellulose and hemicellulose-(oats, bran, dried fruit) make up cell walls of plant and provide insoluble soft fibre
2) Inulin- (yellow plants of asteracae-dandelion and elecampane) made up of fructose, simple plant sugar
3) pectin- (skins of apples and plums) gelling substance. Draws substances like plaque and cholesterol out, act as a stomach coating to decrease ulcers and as a bulking laxative

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8
Q

What are four types of gums and mucilages?

A

1) Gums- (acacia, guar) bulking agents
2) Mucilages- (plantain, comfrey) soothes tissues which in turn reduces inflammation. Soothe lining of GI tract, Urinary tract, uterus and lungs.
3) seaweed gums- (carageenan, agar) thickening agents, draw water and other substances in while soothing tissues
4) resins- (polar bud, myrrh) antiseptic, stimulate white blood cell activity (making them invaluble for healing)

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9
Q

What are some of the medicinal actions that tannins provide and what are the differences between the two types of tannins? What are they called?

A

Tannins in general are astingent and drying. They can treat ‘wet’ conditions (fluid retention, diarrhoea, mucus build up) and are also good for treating wounds as they draw tissue together, reduce bleeding and inflammation.
Condensed tannins- (strawberry leaves, witch hazel) safe for longterm use, breaks down in liver and excreted through kidney
hydrosylable tannins- (white oak, horse chestnut) does not break down in liver, can be hepatoxic

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10
Q

What is a general definition of a glycoside and what are the names of the 8 types?

A

A compoumd that is bound to a glucose molecule and remains inactive till dried, fermented or digested.

1) Phenolic Glycosides (phenols)
2) Cyanogenic Glycosides
3) saponins
4) Flavonoids
5) anthroquinone glycosides
6) mustard oil glycosides
7) cardio active glycosides
8) coumarins

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11
Q

What are the 4 types of Phenols and what do they do?

A

1) salicylic acids/salicylates- (willow, cramp bark) anti-inflammatory, analgesic. Key ingredient in aspirin
2) Eugenol-(primarily cloves) anethetic, antispetic, warming, increases salivation
3) thymol-(primarily thyme but also mint family) antifungal, antiseptic, anti-parasitic
4) Hydroquinone (rose and heather families, most notably bearberry) disinfectant antispetic, particularly to bladder, and kidney tubules

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12
Q

What are cyanogenic glycosides and what are some of their therapeutic actions?

A

-(seeds and pits like apples, plums, etc. Also small quantities in herbs like hawthorn and wild cherry bark) breaks down to create cyanide which is toxic in large quantities. Small doses are antispasmodic and sedative, also increases activity of P.Sympathic Nervous system, decreases heart rate, improves digestion

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13
Q

What are some general traits of saponins? What are the three varieties called and what do they do?

A

foams and lathers when mixed with water and shaken. Direct affect on endocrine system and hormonal production, immuno-modulating, lower cholesterol, anti-inflammatory, diuretic, stimulating expectorants

1) steroidal saponins-(wild yams, balck cohosh)- related to steroid hormones, can be used to occupy receptor sites and decrease naturally produced hormones
2) Triterpenoid saponins- (panax ginseng, licorice) adaptogenic
3) Cardiac saponins- (foxglove, lily of the valley) directly affects heart rate and can be toxic in small doses.

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14
Q

What are the general traits of flavonoids and list the three types with their specific properties.

A

Most widely found glycoside. Wide variety if actions including antioxidant, antimicrobial, prevent mutation of cells, lower blood pressure, sedative and anti-spasmodic, strengthen vascular tissue, anti inflammatory, diuretic, stabilize capillary permeability

1) flavones (yellow and white flowers of citrus plant) isoflavones have a phytosterol action
2) Anthocyanins (dark berries and their leaves) healing blood vessels, lowering blood pressure
3) flavanolignans- (milk thistle, flax) combo of flavonoids and lignan. Important for protection and restoration of liver function. May be useful in fighting cancer

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15
Q

What are some of the actions of anthroquinone glycosides?

A

(senna leaf, Cascara bark) Irritating laxatives to treat constipation. Should not be used long term as they can cause permanent damage to nerve endings in intestines.

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16
Q

What Actions do mustard oil glycosides have and what is the constituent to be wary of in the same plants? Why?

A

Found in pungent plants (mustard, brussel sprouts) irritating to tissue and is used as a rubefacient in conditions like arthritis. Also have an anti-thyroid effect due to Glycocylinates (broccoli, cauliflower) which inhibits iodine uptake. Should be avoided by those with hypothyroidism.

17
Q

What are the actions of cardioactive glycosides and what are the two groups called?

A

Two basic actions on the heart. Decrease rate and increace force of contraction. Therefore the heart is more efficient without requiring additional oxygen. Must be given in very low doses (lily of the vally, Black hellebore, or lily and buttercup families)

1) Bufodenolides
2) cardenolides

18
Q

What are the actions of coumarins?

A

(Pea, parsley, grass. endows the new mown grass smell. Alfalfa and cleavers have unusually high amounts) Vitamin k, Anti-fungal, mildly antibacterial, vascular tonics. Reputation as blood thinners but are neutralized on digestion so this is unlikely to occur in normal use.

19
Q

What are some of the distinguishing properties of alkaloids? List the 9 groups.

A

Most potent of all constituents. When extracted they are often extremely toxic. Even though they are not as dangerous in plant form they should still be used with caution. They are antiseptic, slightly irritating and give plants their bitter taste.

1) Pyradine and Piperidine Alkaloids
2) Pyrrolizidine alkaloids
3) Quinolizidine Alkaloids
4) Indole Alkaloids
5) Purine Alkaloids
6) Isoquinoline Alkaloids
7) Quinoline alkaloids
8) Terpenoid Alkaloids
9) Pyrrolidine alkaloids

20
Q

Describe Pyradine and Piperidine alkaloids

A

Derived from b vitamins and nicotonic acid. Act to stimulate, then depress autonomic nervous system (Lobelia, Tobacco)

21
Q

Describe Pyrrolizidine Alkaloids

A

(comfrey, coltsfoot, borage) May be hepatoxic with long term use. Most potent in the and matured leaves, young leaves recommended.

22
Q

Describe Quinolizidine alkaloids.

A

Derived from combo of lysine and the lapin alkaloid. Work to increase blood pressure, can be toxic. Scotch broom can be used in small amounts but other plants (Lupins) are considered unsafe.

23
Q

Describe Indole alkaloids

A

Derived from tryptamine. Includes the alkaloid hamalan which is the sedative in passionflower. Chemodrugs vincristine and vinblastine are derived from indole alkaloids found in the madagascar periwinkle

24
Q

Describe Purine alkaloids

A

Comprised of alkaloids caffeine, theophylline and theobromine. Prolong life of many hormones, most notably adrenaline.

25
Q

Describe isoquinoline alkaloids.

A

Contains range of subclasses that include everything from the alkaloid hydrastine to morphine and alkaloids found in the poppy family.

26
Q

Describe quinoline alkaloids

A

Derived from phenylalanine and was first used to treat malaria.

27
Q

Describe terpenoid alkaloids

A

Imbue Sedative and hypnotic actions. exists in both sate an harmful plants (valerian which is safe, aconite which is not)

28
Q

Describe Pyrrolidine alkaloids

A

Derived from amino acid omithine. Includes plants from nightshade family (Bella donna) and work to block parasympathetic nerve activity. Illegal in canada.

29
Q

Describe the properties of volatile oils and name the two Isolate groups.

A

Imbue plants with a strong aroma, signify therapeutic benefits in plants including circulatory stimulants, digestive bitters, anti-septic, anti-inflammatory, stimulating expectorants, reducing fevers, diuretci, anti-spasmodic and relaxant, rubefacient, immune stimulant, carminative

1) monoterpenes-more volatile
2) sesquiterpenes-less volatile

30
Q

There are 5 types of Monoterpenes- what are they and what are their properties?

A

1) menthol (mint family)- cooling to skin, locally anesthetic and followed by reflex vasodilation. Used in liniments for muscular and joint problems. Carminative and useful for bowel conditions.
2) camphor (from camphor tree and plants like tansy, wormwood) Topically used as a rubefacient. Stimulates digestion and anti-parasitic.
3) thujone- (sage, cedar) stimulates smooth muscle, acts as mile phytoestrogen. Inhibits perspiration and decreases breast milk. Calms NS in small doses but irritates in large ones.
4) thymol-(thyme and other lamiaceae species) strongly antispetic, also anti fungal, expectoral and immune stimulating
5) limonene-found in 90% of citrus oils. Anti-septic, anti-viral, immune stimulant, mood enhancing

31
Q

Name the two types of sesquiterpenes and describe them.

A

1) azulenes- including chamazulene (yarrow) and guaiazulene (lignum-vitae). Anti-inflammatory, anti-spasmodic, calming to NS, strongly anti-septic on contact
2) Bisabolol- (chamomile) decreases peosin secretion without affecting change in gastric PH. Valuable in gastric and Upper intestinal disorders

32
Q

What are bitter principles and describe their actions

A

Bitters refer to a group of chemicals that imbue specific plants with a bitter taste. All bitters have the same action despite different chemical makeup. Stimulate digestion, increase appetite, stimulate bile flow, protect gut tissue by increasimg tone of gastro esophogeal sphincter, enhance pancreatic function, act as a digestive tonic (iridoid bitters-chicory, valerian. Sesquiterpene-wormwood, gingko. Diterpene bitters-yarrow, white horehound