Benefits Leeches For Humans

For the use of leeches:
Leeches may be used in many applications especially for the purpose and cosmetic changes. The traditional use for the leeches by letting leeches to suck blood for the body of the patient for symptoms like headache relief and accompanying pain. Leech oil is known to the local community to improve the durability of sex for men. In India, it is in use to prevent miscarriage hair. The use of leeches as Chinese medicine and herbs for various treatments maintainability. Modern medicine uses the herb terpetik than leeches to cure blood-related diseases.

Leeches have been used for the purpose Perubatan since over 2000 years ago. One example is using leeches to suck out the blood in the body to achieve the purpose of healing. Today there is a real clinical application in kaedah; they are of great value to plastic surgeons when venous constriction slap the skin and muscle is one issue. Leeches may suck blood in the joint where the blocked blood flow and make it original. Leeches today is used in plastic and reconstructive surgery worldwide. There is also an investigation was victorious to relieve the symptoms of osteoarthritis by using leech.

One more progress in the use of leeches in medicine is that they have been approved in the US for use in therapeutic purposes. Leeches are directly being be distributed to various locations in the country and also throughout the world to use. After suction of blood, the leeches were treated in a similar manner as other blood treatment procedure but that they may be used to on the patient alike. This is mainly to prevent the spread of disease brought by the blood.

Another use of leeches also includes treatment of black eyes. Hirudin, an anticoagulant than leeches may be used in the treatment for inflammation of the middle ear. He is also a percubaan awoken to use as a systemic anticoagulant, and may prove useful in invitro blood-sampling. By removing the serum anti-freeze rather than force investigators leeches were isolating new pharmaceutical mengkompaun for final treatment of heart diseases.

Instead of history, leeches are important in the 19th Century medicine for bloodletting, a practice believed to be cured for something than headaches to gout. Leeches can berubat it is more popular in modern medicine thanks to the work of Dr. Roy Sawyer, an American scientist who embodied the world's first leech field.

Thousands of the patient owes its original mounting body portion succeeding to the introduction of technology in plastic and reconstructive surgery; at least some of the operations may have failed if leeches have not been introduced initially into the chamber surgery.

For to use leeches in surgical procedures is actually very honest. Key to its former glory is rather than whether dammed in the leech bite, which pancit a wound that bled completely for hours. Leech saliva contains ingredients melalikan wound area, dilate the arteries to improve blood flow, at the same time prevents the blood rather than freezing. Usually the surgeon may get the blood to flow into reattached arteries but not veins. With a circular compromised by excessive veins, blood pemergian the reattached finger becomes congested; Courant reattached dizziness blue and die and are at serious risk for kewujudan missing. At this time the beginning of the leeches to play their key role in letting go for blood clotting.

Leech Farming is one industry that can be a lot more popular over crowded perceived that the use of leeches has been established. One reason is also because the number of leeches got less in the woods, after heavy use of insecticide and pesticides. More investigation is currently going in the invention to use leeches that can help us to heal blood problems in respect of such heart diseases and also high cholesterol in our bodies. The role of the leech will change rather than a suction blood creatures feared by people crowded to one great helper in our health.

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Leeches Information

The idea of leeches sucking your blood may be as disconcerting as having maggots eat dead flesh from a wound. The leech, however, is a fascinating creature, and although most famous for sucking the blood of its hosts.

To put leeches in context, they are a type of segmented worm – like earthworms, although leeches tend to be more like a flattened pear shape, with the mouth at the thin end. All segmented worms are in the phylum Annelida¹, and they are divided into three classes: the polychaetes (marine worms such as bristleworms), the oligochaetes (earthworms and other freshwater worms) and the hirudineans (leeches).
While broadly similar to earthworms, a true leech² differs by having a consistent number of segments³, each of which is always divided into two or more rings (annuli), and by having a sucker at both ends of its body that it can use to move, rather than the bristles of other annelids. Many of the aquatic leeches can also swim in a similar manner to eels.
Leeches, like earthworms, are hermaphrodites⁴, but the reproductive systems vary between the different families of leeches. Leeches have internal fertilisation systems: most mating is achieved by the implantation of a ‘spermatophore’ (sperm package) into their partner. This implantation can by done either via a protrusible penis or by the hypodermic implantation of the spermatophore into the body of the partner. The sperm are then transported to the eggs where fertilisation occurs, and cocoons are formed. While many leeches leave the cocoons to develop by themselves, in the leech family Glossiphoniidae, most species have the cocoons attached directly to the parent. This allows the parent to protect and care for the young as they develop. This includes providing food (prey) for the young leeches after they hatch.
All leeches are carnivorous invertebrates⁵, though they are not all parasitic bloodsuckers. There are at least 700 species worldwide, filling a number of predatory niches in aquatic (or at least moist) environments. They require dampness because their thin skin and lack of internal organs means that they find it almost impossible to control water loss, either by dehydration or osmosis. Many species of leech wait for the prey to come to them and subsist on other invertebrates such as earthworms, insects, pond snails and freshwater clams. These leeches are either ones that swallow their prey whole, or ones that spear the prey with an extendable tube which is then used to suck their victim’s juices out.
The other species of leeches comprise the bloodsucking varieties, some still using the hollow spear-like proboscis, but most having two or three sets of jaws with which to attach themselves to their larger hosts as an external parasite. The jaws resemble curved saw-blades with tiny extremely sharp teeth making either a V- or Y-shaped bite (depending on the number of jaws).
Leech use through the ages
Leeches have been used for centuries – possibly since the Stone Age – though modern medicine has outgrown the early rationales for their use. One explanation for blood-letting was that disease was caused by evil spirits, and that these could be removed with the bad blood. There is evidence leeches were used by the Egyptians as long ago as 1500BC. There are further references to medicinal blood-letting in Arabic, Sanskrit, Persian, Greek and Chinese literature. European medical thought was influenced by Galen, physician to Roman Emperor Marcus Aurelius in the 2nd Century AD. Galen advocated blood-letting as part of his medical theory of the four temperaments (sanguine, phlegmatic, choleric and melancholic) that diseases resulted from the imbalance of what Hippocrates identified as the four humours of the body (blood, phlegm, black and yellow bile).
Most uses are medical and based on the leech’s ability to consume blood, but one bizarre use, of questionable effectiveness, was the Tempest Prognosticator – using the response of leeches to changes in atmospheric conditions in order to predict storms.
Leech For The Weekend Sir?
The medical use of leeches for blood-letting was prevalent in Europe and America in the 18th to mid-19th Century, particularly in France (millions were used each year in Paris alone) and was often associated with Barber Surgeons. The species used for blood-letting was (and is) usually the freshwater leech Hirudo medicinalis.
Modern Leech Use
Blood-letting fell out of favour after the 1830s when experiments revealed that it wasn’t an effective treatment for most diseases. The leech removed blood and left a wound that continued to bleed for some time – this did not cure the patient. However, the 1884 discovery that blood did not clot in leeches’ stomachs eventually led to the identification of the effective anti-coagulant enzyme hirudin in the 1950s. This leech by-product has become widely used. Leeches themselves are also still used today because of their ability to significantly aid recovery of blood circulation following surgery.
Some surgery – for instance, the reattachment of a severed finger – can require the blood flow to be re-established. This is done by reconnecting the major arteries and veins. Veins, however, can be difficult to find and connect. If not enough are reconnected, the blood may initially enter the reattached part but not be able to exit. This stops fresh, oxygenated blood entering and the reattachment procedure will fail. Leeches can assist here. If applied to the damaged tissue they can both actively suck out excess blood and also secrete in their saliva: hirudin, which prevents coagulation; a vaso-dilator causing a widening of blood vessels in the dermis encouraging blood flow to the area; a form of histamine, encouraging the capillaries to become leaky; and an anaesthetic so that the host doesn’t feel their jaws slicing through the skin to expose the blood vessels beneath. Together these prevent the tissue from dying off, allowing the body to re-establish good blood flow in the damaged area in a few days.
Leech Attack!
Leeches are also familiar to people who have travelled through wet tropical jungles and swamps and have emerged with uninvited leeches dangling from their flesh. How did the leeches find their prey? Leeches do have eyes (between two and ten) as well as photo-receptive cells scattered over their bodies, but these are pretty basic and unlikely to differentiate more than changes in intensity of light and maybe some movement. Leeches tend to be nocturnal and shun bright light. More unusual sense organs can allow some leeches to locate prey by detecting vibrations (such as movement through water), by smell (following a chemical gradient toward the prey) or even by passive sonar. Bloodsucking leeches tend to be alerted by sensing movement and then home in on the carbon dioxide exhaled by the prey.
One incident that may make you think twice before drinking unfiltered water was the decimating effect leeches apparently had on the soldiers of one of Napoleon‘s armies in the Syrian desert in 1799. Allegedly, the soldiers drank water containing leeches. These attached themselves to the insides of the soldier’s noses, mouths and throats, engorged themselves on blood, and caused some soldiers to die of suffocation; others by loss of blood. Although the story is anecdotal the risk is genuine, and if you can’t remove them by gargling with alcohol or hydrogen peroxide it may be nec

essary to puncture an engorged leech with a sharp object.

Don’t panic. Trying to remove a leech by burning i

t with a lit cigarette, applying salt, shampoo or insect repellent or just pulling at it, may cause the leech to regurgitate its meal and leave an infected wound much worse than the one the leech alone would have left.
Usually leeches will drop off easily by themselves when they have consumed a meal⁶. If you can’t wait, leeches can be removed using a fingernail to push the anterior sucker (where its mouth is) aside (the one at the thin end of the leech), and then doing the same with the posterior sucker (at the fat end of the leech), being careful not to let it reattach itself. If you are in good health and keep the wound clean⁷ you will be unlikely to suffer any ill effects from the leech. It is possible to be made unwell by the symbiotic bacteria in the leech’s gut: possible complications being wound infections, diarrhoea or septicaemia. This can be avoided by using pre-emptive antibiotics for deliberate medicinal use of leeches.

source: www.bbc.co.uk/dna/h2g2/A4429631

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How to Remove a Leech

Leeches are common in rainforests of Madagascar, mainland Africa, and Southeast Asia. Unlike leeches in other parts of the world, rainforest leeches live in leaf litter and vegetation - they are not aquatic. They find their prey (you and other warm-blooded animals) by odor and sound vibrations. In leech-rich areas, if you stand still for a few minutes, you’ll see leeches dropping from vegetation and moving toward you like inchworms.

Terrestrial leeches are generally small (although they can get quite huge in some parts of the world) but will gorge themselves during a meal, gaining up to ten times their weight. The single feeding will be enough to sustain a leech for several months.

The best protection against leeches is covering up and using insect repellent on clothing, although they are extremely persistent and invariably if you spend enough tromping around in the forest you will get leeched. Do not get overly concerned about a leech attack — they carry no disease and there is low risk of causing significant blood loss. Leech bites do not hurt — since they release an anaesthic when they sink their teeth into your skin — but they do bleed profusely. Leeches use an anticoagulant when they bite to faciliate the flow of blood from the wound.

Removing a leech

If you are bitten by a leech and are compelled to remove it before it has had its full (leeches drop off on their own when they are done feeding), you can do so by following these steps:

1. Identify the anterior (oral) sucker which will be found at the small end of the leech.
2. Put your finger on your skin adjacent to the oral sucker
3. Gently but firmly slide your finger toward the wound where the leech is feeding. Using your fingernail, push the sucker sideways away from your skin.
4. Once you have dislodged the oral sucker, quickly detach the posterior (rear) sucker (the fat end of the leech). Try flicking the leech or proding with your fingernail. As you work to remove the leech, it will attempt to reattach itself.
5. Keep the wound clean - minor cuts in tropical climates can quickly become infected. The leech itself is not poisonous. The wound will itch as it heals.

NOTE: Is it generally not advised to attempt removing a leech by burning with a cigarette; applying mosquito repellent, shampoo, or salt; or pulling at the leech. This can result the leech regurgitating into the wound and causing infection much worse than the leech bite itself.

In the case that a leech invades an orifice like your nose, ear, or mouth you have a slightly more serious problem since the leach will expand as it fills with blood. If you have access to strong (drinkable) alcohol or hydrogen peroxide you can try gargling (if the leech is in your mouth). Worst case scenario you may have to puncture the leech with a sharp object.

source: www.wildmadagascar.org/overview/leeches.html

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