Food Poisoning: An Introduction

Food poisoning is an acute gastroenteritis caused by the consumption of a food material or a drink which contains the pathogenic micro organism or their toxins or poisonous chemicals.Food poisoning is common in hostels,hotels,communal feedings, and festivel seasons.

A group of persons will be affected with same type of symptoms ,and they give a history of consumption of a common food before few hours.

Types of food poisoning...

1) Bacterial food poisoning:
Here the micro organisms called bacteria are responsible.The food material may contain the pathogenic bacteriae or their toxin and will be ingested along with the food.

2) Non bacterial food poisoning:
Due to the presence of toxic chemicals like fertilizers,insectisides,heavy metals and ect.

Since bacterial food poisoning is common it is discussed here.
Bacterial food poisoning:
All bacteria are not harmful.There are some pathogenic bacteria which secrete toxins and cause clinical manifestations.These organisms enter the human body through food articles or drinks.

How food poisoning occures:
1) Presence of bacteria in the water.
2) The raw materials for the food may contain toxins.
3) Premises where the food is prepared may contain micro organisms or toxins.
4) Food handlers may have some infectious diseases.
5) Some animals like dogs,rats may contaminate the food.
6) If prepared food is kept in the room temperature for a long time and heated again can make a chance for food poisoning.
7) Purposely some body mixing toxins in the food.

Some common bacterial food poisonings.
1) Salmonella food poisoning:
There are three different varieties of salmonella bacteria.(salmonella typhimurium,salmonella cholera suis,salmonella enteritidis) These bacteria are present in milk, milk products and eggs. Symptoms of this food poisoning include nausea, vomiting and diarrhoea. Fever is also common.

2) Botulism:
This is the dangerous type of food poisoning caused by clostridium botulinum. The spores of these organisms are seen in the soil and enters the human body through pickles and canned fish ect.Compared to other food poisonings here vomiting and diarrhoea are rare Mainly the nervous system is affected.The symptoms starts with double vision,numbness with weakness.Later there will be paralysis with cardiac and respiratory failure ending in death.

3) Staphylococcal food poisoning:
It is caused by staphylo coccus aureus. These organisms usually cause skin troubles like boils and eruptions.It causes mastitis in cow.Through the milk and milk products it enders and causes gastroenteritis.There will be vomiting,abdominal cramps with diarrhoea.

4) Closteridium food poisoning:
This is caused by closteridium perfringens.They are present in stool,soil and water. They enter the body through,meat,meat dishes and egg ect.If food articles are cooked and kept in room temperature for a long time and heated again before eating can result this food poisoning.Symptoms include vomiting ,diarrhoea and abdominal cramps.

5) Bacillus cereus:
The spores of these organisms can survive cooking and causes enteritis. Diarrhoea and vomiting is common in this infection.

How to investigate food poisoning?
1) Examine each and every person affected.
2) Water sample should be tested.
3) Kitchen, store room and food samples should be examined.
4) The cook and food handlers should be questioned and examined.
5) Samples of vomitus and stool of all victims should be tested to identify the bacteria.

How to prevent food poisoning:-
1) Only purified water should be used.
2) Hygiene should be maintained by all persons keeping contact with food.
3) Workers should use masks, cap and gloves during cooking and serving.
4) Sick individuals should not come in contact with food materials.
5) Kitchen and premises should be neat and clean.
6) Vessels should be washed with soap and hot water.
7) Should not keep the prepared food for a long time in room temperature.
8) All food materials should be kept in closed containers.
9) Animals like dog, cat, rat ect should not come in contact with food materials.
10) Vegetables should be washed before cooking.
11) Meat should be fresh and should be purchased from recognised slaughter house.

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Alchohol: Membranous deteriorations

In order to make perfectly clear to your mind the action and use of these membranous expansions, and the way in which alcohol deteriorates them, and obstructs their work, we quote again from Dr. Richardson:

"The animal receives from the vegetable world and from the earth the food and drink it requires for its sustenance and motion. It receives colloidal food for its muscles: combustible food for its motion; water for the solution of its various parts; salt for constructive and other physical purposes. These have all to be arranged in the body; and they are arranged by means of the membranous envelopes. Through these membranes nothing can pass that is not, for the time, in a state of aqueous solution, like water or soluble salts.

Water passes freely through them, salts pass freely through them, but the constructive matter of the active parts that is colloidal does not pass; it is retained in them until it is chemically decomposed into the soluble type of matter. When we take for our food a portion of animal flesh, it is first resolved, in digestion, into a soluble fluid before it can be absorbed; in the blood it is resolved into the fluid colloidal condition; in the solids it is laid down within the membranes into new structure, and when it has played its part, it is digested again, if I may so say, into a crystalloidal soluble substance, ready to be carried away and replaced by addition of new matter, then it is dialysed or passed through, the membranes into the blood, and is disposed of in the excretions....

"See, then, what an all-important part these membranous structures play in the animal life. Upon their integrity all the silent work of the building up of the body depends. If these membranes are rendered too porous, and let out the colloidal fluids of the blood the albumen, for example the body so circumstanced, dies; dies as if it were slowly bled to death.

If, on the contrary, they become condensed or thickened, or loaded with foreign material, then they fail to allow the natural fluids to pass through them. They fail to dialyse, and the result is, either an accumulation of the fluid in a closed cavity, or contraction of the substance inclosed within the membrane, or dryness of membrane in surfaces that ought to be freely lubricated and kept apart.

In old age we see the effects of modification of membrane naturally induced; we see the fixed joint, the shrunken and feeble muscle, the dimmed eye, the deaf ear, the enfeebled nervous function.

"It may possibly seem, at first sight, that I am leading immediately away from the subject of the secondary action of alcohol. It is not so. I am leading directly to it. Upon all these membranous structures alcohol exerts a direct perversion of action. It produces in them a thickening, a shrinking and an inactivity that reduces their functional power. That they may work rapidly and equally, they require to be at all times charged with water to saturation.

If, into contact with them, any agent is brought that deprives them of water, then is their work interfered with; they cease to separate the saline constituents properly; and, if the evil that is thus started, be allowed to continue, they contract upon their contained matter in whatever organ it may be situated, and condense it.

"In brief, under the prolonged influence of alcohol those changes which take place from it in the blood corpuscles, extend to the other organic parts, involving them in structural deteriorations, which are always dangerous, and are often ultimately fatal."

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Alcohol Effect on Membranes

The parts which first suffer from alcohol are those expansions of the body which the anatomists call the membranes. "The skin is a membranous envelope. Through the whole of the alimentary surface, from the lips downward, and through the bronchial passages to their minutest ramifications, extends the mucous membrane. The lungs, the heart, the liver, the kidneys are folded in delicate membranes, which can be stripped easily from these parts.

If you take a portion of bone, you will find it easy to strip off from it a membranous sheath or covering; if you examine a joint, you will find both the head and the socket lined with membranes. The whole of the intestines are enveloped in a fine membrane called peritoneum .

All the muscles are enveloped in membranes, and the fasciculi, or bundles and fibres of muscles, have their membranous sheathing. The brain and spinal cord are enveloped in three membranes; one nearest to themselves, a pure vascular structure, a network of blood-vessels; another, a thin serous structure; a third, a strong fibrous structure.

The eyeball is a structure of colloidal humors and membranes, and of nothing else. To complete the description, the minute structures of the vital organs are enrolled in membranous matter."

These membranes are the filters of the body. "In their absence there could be no building of structure, no solidification of tissue, nor organic mechanism. Passive themselves, they, nevertheless, separate all structures into their respective positions and adaptations."

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Back Pain: What Cause It

Low back pain is a usual symptom amoung the modern civilised people.It affects mainly the middle aged and young adults of both sexes.People who work on the chair with out exercise and those who carry heavy loads regularly are prone to get this complaint.

We can hardly find a person who has not suffered from back pain atleast once in life.The causes of low backpain ranges from simple reasons like muscular strain to cancer of spine and hence backache should not be ignored.The pain is felt in lumbar and sacral region and may radiate to nearby sites.

The following are some causes for backache:
1 Backache due to diseases in the back injuries :

1) Compression fracture of the vertebral column.
2) Rupture of intervertebral discs.
3) Injuries to ligaments and muscles of back.
4) Lumbosacral strain.
5) Intervertebral joint injuries.
6) Fracture of processes of vertebra.

b) Functional backache due to imbalance:-

1) During pregnancy.
2) Pot belly.
3) Diseases of the hip joint.
4) Curvature in the spine due to congenital defect.
5) Short leg in one side.

c) Backache due to inflammatory conditions:-

1) Infection of the bone due to bacteria.
2) Tuberculosis of the spine.
3) Arthritis.
4) Brucellosis.
5) Lumbago or fibrositis.
6) Inflamation of the muscles.
7) Anchylosing spondylitis.

d) Backache due to degenerative diseases in the back.

1) Osteoarthritis.
2) Osteoporosis in old people.
3) Degenaration of the intervertebral disc.

e) Tumour in the spine:--

1) Primory tumour of the bones in the spine.
2) Metastatic tumours from other sites like prostate,lungs,kidneys,intestine ect.

2. Backache due to gynaecological problems:
a) After childbirth.
b) After gynaecological operations.
c) Prolapse of the uterus.
d) Pelvic inflammatory diseases.
e) Cancerous lesions of the pelvic organs.
f) Endometriosis.

3. Backache due to problems in other parts of the body.
a) Renal stones.
b) Ureteric stone.
c) Cancer of prostate.
d) Pancreatitis.
e) Biliary stones.
f) Peptic ulcer.
g) Inflammations of pelvic organs.
h) Occlusion of aorta and illiac arteries.

Investigation of a case of backache
1) Complete blood count.
2) Routine urine examination.
3) Ultrasonography of the abdomen and pelvis.
4) X-ray of the lumbar and sacral region.
5) MRI of the spine.
6) CT scan of abdomen and pelvic region.
7) Examination of rectum,prostate,genito urinary organs.

Treatment of back ache
1) Removing the cause for backache.
2) Symptomatic treatement.
3) Back exercises.
4) Traction.
5) Yoga.
6) Surgery.
7) Homoeopathy.

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Alcohol and Body Fit

If alcohol does not contain tissue-building material, nor give heat to the body, it cannot possibly add to its strength. "Every kind of power an animal can generate," says Dr. G. Budd, F.R.S., "the mechanical power of the muscles, the chemical (or digestive) power of the stomach, the intellectual power of the brain accumulates through the nutrition of the organ on which it depends.

Dr. F.R. Lees, of Edinburgh, after discussing the question, and educing evidence, remarks: "From the very nature of things, it will now be seen how impossible it is that alcohol can be strengthening food of either kind. Since it cannot become a part of the body, it cannot consequently contribute to its cohesive, organic strength, or fixed power; and, since it comes out of the body just as it went in, it cannot, by its decomposition, generate heat force."

Sir Benjamin Brodie says: "Stimulants do not create nervous power; they merely enable you, as it were, to use up that which is left, and then they leave you more in need of rest than before."



Baron Liebig, so far back as 1843, in his "Animal Chemistry," pointed out the fallacy of alcohol generating power. He says: "The circulation will appear accelerated at the expense of the force available for voluntary motion, but without the production of a greater amount of mechanical force.

In his later "Letters," he again says: "Wine is quite superfluous to man, it is constantly followed by the expenditure of power" whereas, the real function of food is to give power. He adds: "These drinks promote the change of matter in the body, and are, consequently, attended by an inward loss of power, which ceases to be productive, because it is not employed in overcoming outward difficulties i.e., in working." In other words, this great chemist asserts that alcohol abstracts the power of the system from doing useful work in the field or workshop, in order to cleanse the house from the defilement of alcohol itself.

The late Dr. W. Brinton, Physician to St. Thomas', in his great work on Dietetics, says: "Careful observation leaves little doubt that a moderate dose of beer or wine would, in most cases, at once diminish the maximum weight which a healthy person could lift. Mental acuteness, accuracy of perception and delicacy of the senses are all so far opposed by alcohol, as that the maximum efforts of each are incompatible with the ingestion of any moderate quantity of fermented liquid. A single glass will often suffice to take the edge off both mind and body, and to reduce their capacity to something below their perfection of work."
Dr. F.R. Lees, F.S.A., writing on the subject of alcohol as a food, makes the following quotation from an essay on "Stimulating Drinks," published by Dr. H.R. Madden, as long ago as 1847: "Alcohol is not the natural stimulus to any of our organs, and hence, functions performed in consequence of its application, tend to debilitate the organ acted upon.

Alcohol is incapable of being assimilated or converted into any organic proximate principle, and hence, cannot be considered nutritious.

The strength experienced after the use of alcohol is not new strength added to the system, but is manifested by calling into exercise the nervous energy pre-existing.

The ultimate exhausting effects of alcohol, owing to its stimulant properties, produce an unnatural susceptibility to morbid action in all the organs, and this, with the plethora superinduced, becomes a fertile source of disease.

A person who habitually exerts himself to such an extent as to require the daily use of stimulants to ward off exhaustion, may be compared to a machine working under high pressure. He will become much more obnoxious to the causes of disease, and will certainly break down sooner than he would have done under more favorable circumstances.

The more frequently alcohol is had recourse to for the purpose of overcoming feelings of debility, the more it will be required, and by constant repetition a period is at length reached when it cannot be foregone, unless reaction is simultaneously brought about by a temporary total change of the habits of life.

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Alchohol and Internal Organ

The organic deteriorations caused by the continued use of alcohol are often of a fatal character. The organ which most frequently undergoes structural changes from alcohol, is the liver. Normally, the liver has the capacity to hold active substances in its cellular parts.

In instances of poisoning by various poisonous compounds, we analyse liver as if it were the central depot of the foreign matter. It is practically the same in respect to alcohol. The liver of an alcoholic is never free from the influence of alcohol and it is too often saturated with it.

The minute membranous or capsular structure of the liver gets affected, preventing proper dialysis and free secretion. The liver becomes large due to the dilatation of its vessels, the surcharge of fluid matter and the thickening of tissue.

This follows contraction of membrane and shrinking of the whole organ in its cellular parts. Then the lower parts of the alcoholic becomes dropsical owing to the obstruction offered to the returning blood by the veins. The structure of the liver may be charged with fatty cells and undergo what is technically designated 'fatty liver'.

Consumption of alcohol greatly affects the heart. The quality of the membraneous structures which cover and line the heart changes and are thickened, become cartilaginous or calcareous.

Then the valves lose their suppleness and what is termed valvular disorder becomes permanent. The structure of the the coats of the great blood-vessel leading from the heart share in the same changes of structure so that the vessel loses its elasticity and its power to feed the heart by the recoil from its distention, after the heart, by its stroke, has filled it with blood.

Again, the muscular structure of the heart fails owing to degenerative changes in its tissue. The elements of the muscular fibre are replaced by fatty cells or, if not so replaced, are themselves transferred into a modified muscular texture in which the power of contraction is greatly reduced.

Those who suffer from these organic deteriorations of the central and governing organ of the circulation of the blood learn the fact so insidiously, it hardly breaks upon them until the mischief is far advanced.

They are conscious of a central failure of power from slight causes such as overexertion, trouble, broken rest or too long abstinence from food. They feel what they call a 'sinking' but they know that wine or some other stimulant will at once relieve the sensation.

Thus they seek to relieve it until at last they discover that the remedy fails. The jaded, overworked, faithful heart will bear no more. it has run its course and the governor of the blood-streams broken. The current either overflows into the tissues gradually damming up the courses or under some slight shock or excess of motion ceases wholly at the centre.

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