Bacilli Health Dictionary

Bacilli: From 1 Different Sources


Rod-shaped bacteria. The singular term is bacillus.
Health Source: BMA Medical Dictionary
Author: The British Medical Association

Bacteria

(Singular: bacterium.) Simple, single-celled, primitive organisms which are widely distributed throughout the world in air, water, soil, plants and animals including humans. Many are bene?cial to the environment and other living organisms, but some cause harm to their hosts and can be lethal.

Bacteria are classi?ed according to their shape: BACILLUS (rod-like), coccus (spherical – see COCCI), SPIROCHAETE (corkscrew and spiral-shaped), VIBRIO (comma-shaped), and pleomorphic (variable shapes). Some are mobile, possessing slender hairs (?agellae) on the surfaces. As well as having characteristic shapes, the arrangement of the organisms is signi?cant: some occur in chains (streptococci) and some in pairs (see DIPLOCOCCUS), while a few have a ?lamentous grouping. The size of bacteria ranges from around 0.2 to 5 µm and the smallest (MYCOPLASMA) are roughly the same size as the largest viruses (poxviruses – see VIRUS). They are the smallest organisms capable of existing outside their hosts. The longest, rod-shaped bacilli are slightly smaller than the human erythrocyte blood cell (7 µm).

Bacterial cells are surrounded by an outer capsule within which lie the cell wall and plasma membrane; cytoplasm ?lls much of the interior and this contains genetic nucleoid structures containing DNA, mesosomes (invaginations of the cell wall) and ribosomes, containing RNA and proteins. (See illustration.)

Reproduction is usually asexual, each cell dividing into two, these two into four, and so on. In favourable conditions reproduction can be very rapid, with one bacterium multiplying to 250,000 within six hours. This means that bacteria can change their characteristics by evolution relatively quickly, and many bacteria, including Mycobacterium tuberculosis and Staphylococcus aureus, have developed resistance to successive generations of antibiotics produced by man. (METHICILLIN-RESISTANT STAPHYLOCOCCUS AUREUS (MRSA)) is a serious hazard in some hospitals.

Bacteria may live as single organisms or congregate in colonies. In arduous conditions some bacteria can convert to an inert, cystic state, remaining in their resting form until the environment becomes more favourable. Bacteria have recently been discovered in an inert state in ice estimated to have been formed 250 million years ago.

Bacteria were ?rst discovered by Antonj van Leewenhoek in the 17th century, but it was not until the middle of the 19th century that Louis Pasteur, the famous French scientist, identi?ed bacteria as the cause of many diseases. Some act as harmful PATHOGENS as soon as they enter a host; others may have a neutral or benign e?ect on the host unless the host’s natural immune defence system is damaged (see IMMUNOLOGY) so that it becomes vulnerable to any previously well-behaved parasites. Various benign bacteria that permanently reside in the human body are called normal ?ora and are found at certain sites, especially the SKIN, OROPHARYNX, COLON and VAGINA. The body’s internal organs are usually sterile, as are the blood and cerebrospinal ?uid.

Bacteria are responsible for many human diseases ranging from the relatively minor – for example, a boil or infected ?nger – to the potentially lethal such as CHOLERA, PLAGUE or TUBERCULOSIS. Infectious bacteria enter the body through broken skin or by its ori?ces: by nose and mouth into the lungs or intestinal tract; by the URETHRA into the URINARY TRACT and KIDNEYS; by the vagina into the UTERUS and FALLOPIAN TUBES. Harmful bacteria then cause disease by producing poisonous endotoxins or exotoxins, and by provoking INFLAMMATION in the tissues – for example, abscess or cellulitis. Many, but not all, bacterial infections are communicable – namely, spread from host to host. For example, tuberculosis is spread by airborne droplets, produced by coughing.

Infections caused by bacteria are commonly treated with antibiotics, which were widely introduced in the 1950s. However, the con?ict between science and harmful bacteria remains unresolved, with the overuse and misuse of antibiotics in medicine, veterinary medicine and the animal food industry contributing to the evolution of bacteria that are resistant to antibiotics. (See also MICROBIOLOGY.)... bacteria

Agglutination

The adherence together of small bodies in a ?uid. Thus, blood corpuscles agglutinate into heaps (rouleaux) when added to the serum of a person belonging to an incompatible blood group. Bacteria agglutinate into clumps and die when exposed to the presence of antibodies in the blood. This is important in regard to diagnosis of certain diseases due to bacteria. In typhoid fever (see ENTERIC FEVER), for example, the blood of an animal is immunised against typhoid bacilli by repeated injections of these.

The blood serum of the animal, known now as anti-typhoid serum, is issued to laboratories for use when bacilli are found in the excretions of a patient who is possibly suffering from typhoid fever. The bacilli are exposed to the action of a drop of the serum; if the serum shows the power of agglutinating these bacteria, this forms evidence that the bacteria in question are typhoid bacilli. The reaction may also be carried out in the contrary manner: that is to say, the serum from the blood of a patient who may be suffering from typhoid fever, but in whom the diagnosis is still doubtful, is added to a drop of ?uid containing typhoid bacilli; if these are agglutinated into clumps by the patient’s serum, the patient is then known to be suffering from typhoid fever. If they do not agglutinate, the symptoms are due to some other condition. This reaction for typhoid fever is known as the Widal reaction. Comparable agglutination reactions, using an appropriate serum, are used in the diagnosis of a number of diseases, including glandular fever (when it is known as the Paul-Bunnell reaction), typhus fever (when it is known as the Weil-Felix reaction), undulant fever, and Weil’s disease. (For more information about these diseases, see under separate entries.)... agglutination

Anthrax

A serious disease occurring in sheep and cattle, and in those who tend them or handle the bones, skins and ?eeces – even long after removal of the latter from the animals. It is sometimes referred to as malignant pustule, wool-sorters’ disease, splenic fever of animals, or murrain. It is now a rare condition in the United Kingdom. The cause is a bacillus (B. anthracis) which grows in long chains and produces spores of great vitality. These spores retain their life for years, in dried skins and ?eeces; they are not destroyed by boiling, freezing, 5 per cent carbolic lotion, or, like many bacilli, by the gastric juice. The disease is communicated from a diseased animal to a crack in the skin (e.g. of a farmer or butcher), or from contact with contaminated skins or ?eeces. Nowadays skins are handled wet, but if they are allowed to dry so that dust laden with spores is inhaled by the workers, serious pneumonia may result. Instances have occurred of the disease being conveyed on shaving brushes made from bristles of diseased animals. A few countries are believed to have developed anthrax as a weapon of war to be delivered by shells or rockets, despite international agreements to ban such weapons.

In the wake of the devastating terrorist attacks on buildings in New York and Washington on 11 September 2001, modi?ed anthrax spores were sent by mail from an unidenti?ed source to some prominent Americans. Several people were infected and a few died. This was the ?rst known use of anthrax as a terror weapon.

Prevention is most important by disinfecting all hides, wool and hair coming from areas of the world. An e?cient vaccine is now available. Treatment consists of the administration of large doses of the broad-spectrum antibiotic, CIPROFLOXACIN. If bioterrorism is thought to be the likely source of anthrax infection, appropriate decontamination procedures must be organised promptly.

Symptoms

EXTERNAL FORM This is the ‘malignant pustule’. After inoculation of some small wound, a few hours or days elapse, and then a red, in?amed swelling appears, which grows larger till it covers half the face or the breadth of the arm, as the case may be. Upon its summit appears a bleb of pus, which bursts and leaves a black scab, perhaps 12 mm (half an inch) wide. The patient is feverish and seriously ill. The in?ammation may last ten days or so, when it slowly subsides and the patient recovers, if surviving the fever and prostration.

INTERNAL FORM This takes the form of pneumonia with haemorrhages, when the spores have been drawn into the lungs, or of ulcers of the stomach and intestines, with gangrene of the SPLEEN, when they have been swallowed.

It is usually fatal in two or three days. Victims may also develop GASTROENTERITIS or MENINGITIS.... anthrax

Bartonella

A genus of small Gram negative bacilli. Include the agents for Bartonellosis (Carrion’s Disease) caused by B. bacilliformis in South America. Other species include B. henselae , the cause of Cat Scratch Fever and B. quintana, the cause of Trench Fever.... bartonella

Coliform Bacteria

Intestinal bacilli that are gram-negative, sugar-digesting, and both aerobic and anaerobic. They are usually from the family Enterobacteriaceae; Escherichia coli is the best known of the group.... coliform bacteria

Corynebacterium

The genus of Gram positive bacilli including Corynebacterium diphtheriae, the cause of diphtheria in humans. Genus also includes C. minutissimum, the cause of erythrasma in humans and the diphtheroids which are commensal corynebacteria making up part of the human respiratory tract normal flora.... corynebacterium

Neomycin

Neomycin is one of the AMINOGLYCOSIDES, derived from Streptomyces fradiae. It has a wide antibacterial spectrum, being e?ective against the majority of gram-negative (see GRAM’S STAIN) bacilli. Its use is limited by the fact that it is liable to cause deafness and kidney damage. Its main use is for application to the skin – either in solution or as an ointment – for the treatment of infection; it is also given by mouth for the treatment of certain forms of ENTERITIS due to E. coli.... neomycin

Pasteurella

A group of bacilli. They are essentially animal parasites (see PARASITE) that under certain conditions are transmitted to humans, and include the micro-organism responsible for PLAGUE and TULARAEMIA.... pasteurella

Vincent’s Angina

An ulcerative in?ammation of the throat, often foul-smelling, and caused by large, spindle-shaped bacilli (fusobacterium) and spirilla.... vincent’s angina

Yoghurt

Sour milk curdled with one of the LACTIC ACID producing bacilli, such as Lactobacillus acidophilus or Lactobacillus bulgaricus. It contains all the protein, fat, calcium, and vitamins of the original milk, and is therefore a nutritious food, but there is no evidence that it has any unique bene?cial properties of its own. In countries where standards of hygiene are low, it has the advantage of having been sterilised by boiling and is therefore unlikely to be contaminated with dangerous micro-organisms.... yoghurt

Gangrene

The death and decay of body tissues caused by a de?ciency or cessation of the blood supply. There are two types: dry and moist. The former is a process of mummi?cation, with the blood supply of the affected area of tissue stopping and the tissue withering up. Moist gangrene is characterised by putrefactive tissue decay caused by bacterial infection. The dead part, when formed of soft tissues, is called a slough and, when part of a bone, is called a sequestrum.

Causes These include injury – especially that sustained in war – disease, FROSTBITE, severe burns, ATHEROMA in large blood vessels, and diseases such as DIABETES MELLITUS and RAYNAUD’S DISEASE. Gas gangrene is a form that occurs when injuries are infected with soil contaminated with gas-producing bacilli such as Clostridium welchii, which are found in well-cultivated ground.

Treatment Dry gangrene must be kept dry, and AMPUTATION of the dead tissue performed when a clear demarcation line with healthy tissue has formed. Wet gangrene requires urgent surgery and prompt use of appropriate antibiotics.... gangrene

Bacillaemia

n. the presence of bacilli in the blood, resulting from infection.... bacillaemia

Bacilluria

n. the presence of bacilli in the urine, resulting from a bladder or kidney infection. See cystitis.... bacilluria

Bacillus

n. (pl. bacilli) any rod-shaped bacterium. See also Bacillus; Lactobacillus; Streptobacillus.... bacillus

Ghon’s Focus

the lesion produced in the lung of a previously uninfected person by tubercle bacilli. It is a small focus of granulomatous inflammation, which may become visible on a chest X-ray if it grows large enough or if it calcifies. A Ghon focus usually heals without further trouble, but in some patients tuberculosis spreads from it via the lymphatics, the air spaces, or the bloodstream. [A. Ghon (1866–1936), Czech pathologist]... ghon’s focus

Meticillin

(methicillin) n. a semisynthetic penicillin that was originally used to treat infections by penicillin-resistant staphylococci. It has been superseded for this purpose by *flucloxacillin but continues to be used to test the drug sensitivity of staphylococci. Meticillin-resistant staphylococci (MRS) can be responsible for increasing rates of infection in hospitals. Until recently, such infections have responded to *vancomycin, but strains of bacilli have emerged that are resistant to vancomycin, giving rise to infections that are very difficult to treat. See also superinfection.... meticillin

Joints, Diseases Of

‘Rheumatism’ is the colloquial term for nonspeci?c musculoskeletal symptoms arising in the joints, ligaments, tendons and muscles. ‘Arthritis’ describes a pathological musculoskeletal disorder. Most common are sprains of ligaments, strains of tendons and muscles,

BURSITIS, TENDINITIS and non-speci?c back pain (see BACKACHE).

Osteoarthritis (OA) rarely starts before 40, but by the age of 80 affects 80 per cent of the population. There are structural and functional changes in the articular cartilage, as well as changes in the collagenous matrix of tendons and ligaments. OA is not purely ‘wear and tear’; various sub-groups have a genetic component. Early OA may be precipitated by localised alteration in anatomy, such as a fracture or infection of a joint. Reactive new bone growth typically occurs, causing sclerosis (hardening) beneath the joint, and osteophytes – outgrowths of bone – are characteristic at the margins of the joint. The most common sites are the ?rst metatarsal (great toe), spinal facet joints, the knee, the base of the thumb and the terminal ?nger joints (Heberden’s nodes).

OA has a slow but variable course, with periods of pain and low-grade in?ammation. Acute in?ammation, common in the knee, may result from release of pyrophosphate crystals, causing pseudo-gout.

Urate gout results from crystallisation of URIC ACID in joints, against a background of hyperuricaemia. This high concentration of uric acid in the blood may result from genetic and environmental factors, such as excess dietary purines, alcohol or diuretic drugs.

In?ammatory arthritis is less common than OA, but potentially much more serious. Several types exist, including: SPONDYLARTHRITIS This affects younger men, chie?y involving spinal and leg joints. This may lead to in?ammation and eventual ossi?cation of the enthesis – that is, where the ligaments and tendons are inserted into the bone around joints. This may be associated with disorders in other parts of the body: skin in?ammation (PSORIASIS), bowel and genito-urinary in?ammation, sometimes resulting in infection of the organs (such as dysentery). The syndromes most clearly delineated are ankylosing spondylitis (see SPINE AND SPINAL CORD, DISEASES AND INJURIES OF), psoriatic or colitic spondylitis, and REITER’S SYNDROME. The diagnosis is made clinically and radiologically; no association has been found with autoantibodies (see AUTOANTIBODY). A particularly clear gene locus, HLA B27, has been identi?ed in ankylosing spondylitis. Psoriasis can be associated with a characteristic peripheral arthritis.

Systemic autoimmune rheumatic diseases (see AUTOIMMUNE DISORDERS). RHEUMATOID ARTHRITIS (RA) – see also main entry. The most common of these diseases. Acute in?ammation causes lymphoid synovitis, leading to erosion of the cartilage, associated joints and soft tissues. Fibrosis follows, causing deformity. Autoantibodies are common, particularly Rheumatoid Factor. A common complication of RA is Sjögren’s syndrome, when in?ammation of the mucosal glands may result in a dry mouth and eyes. SYSTEMIC LUPUS ERYTHEMATOSUS (SLE) and various overlap syndromes occur, such as systemic sclerosis and dermatomyositis. Autoantibodies against nuclear proteins such as DNA lead to deposits of immune complexes and VASCULITIS in various tissues, such as kidney, brain, skin and lungs. This may lead to various symptoms, and sometimes even to organ failure.

Infective arthritis includes: SEPTIC ARTHRITIS An uncommon but potentially fatal disease if not diagnosed and treated early with approriate antibiotics. Common causes are TUBERCLE bacilli and staphylococci (see STAPHYLOCOCCUS). Particularly at risk are the elderly and the immunologically vulnerable, such as those under treatment for cancer, or on CORTICOSTEROIDS or IMMUNOSUPPRESSANT drugs. RHEUMATIC FEVER Now rare in western countries. Resulting from an immunological reaction to a streptococcal infection, it is characterised by migratory arthritis, rash and cardiac involvement.

Other infections which may be associated with arthritis include rubella (German measles), parvovirus and LYME DISEASE.

Treatment Septic arthritis is the only type that can be cured using antibiotics, while the principles of treatment for the others are similar: to reduce risk factors (such as hyperuricaemia); to suppress in?ammation; to improve function with physiotherapy; and, in the event of joint failure, to perform surgical arthroplasty. NON-STEROIDAL ANTI-INFLAMMATORY DRUGS (NSAIDS) include aspirin, paracetamol and many recently developed ones, such as the proprionic acid derivatives IBUPROFEN and naproxen, along with other drugs that have similar properties such as PIROXICAM. They all carry a risk of toxicity, such as renal dysfunction, or gastrointestinal irritation with haemorrhage. Stronger suppression of in?ammation requires corticosteroids and CYTOTOXIC drugs such as azathioprine or cyclophosphamide. Recent research promises more speci?c and less toxic anti-in?ammatory drugs, such as the monoclonal antibodies like in?iximab. An important treatment for some osteoarthritic joints is surgical replacement of the joints.... joints, diseases of

Tetanolysin

n. a toxin produced by tetanus bacilli in an infected wound, causing the local destruction of tissues.... tetanolysin

Tetanospasmin

n. a toxin produced by tetanus bacilli in an infected wound. The toxin diffuses along nerves, causing paralysis, and may reach the spinal cord and brain, when it causes violent muscular spasms and the condition of lockjaw.... tetanospasmin

Tuberculin

n. a protein extract from cultures of tubercle bacilli, used to test whether a person has suffered from or been in contact with tuberculosis. In the Mantoux test a quantity of tuberculin is injected beneath the skin and a patch of inflammation appearing in the next 48–72 hours is regarded as a positive reaction, meaning that a degree of immunity is present.... tuberculin

Microbiology

The study of all aspects of micro-organisms (microbes) – that is, organisms which individually are generally too small to be visible other than by microscopy. The term is applicable to viruses (see VIRUS), BACTERIA, and microscopic forms of fungi, algae, and PROTOZOA.

Among the smallest and simplest microorganisms are the viruses. First described as ?lterable agents, and ranging in size from 20–30 nm to 300 nm, they may be directly visualised only by electron microscopy. They consist of a core of deoxyribonucleic or ribonucleic acid (DNA or RNA) within a protective protein coat, or capsid, whose subunits confer a geometric symmetry. Thus viruses are usually cubical (icosahedral) or helical; the larger viruses (pox-, herpes-, myxo-viruses) may also have an outer envelope. Their minimal structure dictates that viruses are all obligate parasites, relying on living cells to provide essential components for their replication. Apart from animal and plant cells, viruses may infect and replicate in bacteria (bacteriophages) or fungi (mycophages), which are damaged in the process.

Bacteria are larger (0·01–5,000 µm) and more complex. They have a subcellular organisation which generally includes DNA and RNA, a cell membrane, organelles such as ribosomes, and a complex and chemically variable cell envelope – but, unlike EUKARYOTES, no nucleus. Rickettsiae, chlamydia, and mycoplasmas, once thought of as viruses because of their small size and absence of a cell wall (mycoplasma) or major wall component (chlamydia), are now acknowledged as bacteria; rickettsiae and chlamydia are intracellular parasites of medical importance. Bacteria may also possess additional surface structures, such as capsules and organs of locomotion (?agella) and attachment (?mbriae and stalks). Individual bacterial cells may be spheres (cocci); straight (bacilli), curved (vibrio), or ?exuous (spirilla) rods; or oval cells (coccobacilli). On examination by light microscopy, bacteria may be visible in characteristic con?gurations (as pairs of cocci [diplococci], or chains [streptococci], or clusters); actinomycete bacteria grow as ?laments with externally produced spores. Bacteria grow essentially by increasing in cell size and dividing by ?ssion, a process which in ideal laboratory conditions some bacteria may achieve about once every 20 minutes. Under natural conditions, growth is usually much slower.

Eukaryotic micro-organisms comprise fungi, algae, and protozoa. These organisms are larger, and they have in common a well-developed internal compartmentation into subcellular organelles; they also have a nucleus. Algae additionally have chloroplasts, which contain photosynthetic pigments; fungi lack chloroplasts; and protozoa lack both a cell wall and chloroplasts but may have a contractile vacuole to regulate water uptake and, in some, structures for capturing and ingesting food. Fungi grow either as discrete cells (yeasts), multiplying by budding, ?ssion, or conjugation, or as thin ?laments (hyphae) which bear spores, although some may show both morphological forms during their life-cycle. Algae and protozoa generally grow as individual cells or colonies of individuals and multiply by ?ssion.

Micro-organisms of medical importance include representatives of the ?ve major microbial groups that obtain their essential nutrients at the expense of their hosts. Many bacteria and most fungi, however, are saprophytes (see SAPROPHYTE), being major contributors to the natural cycling of carbon in the environment and to biodeterioration; others are of ecological and economic importance because of the diseases they cause in agricultural or horticultural crops or because of their bene?cial relationships with higher organisms. Additionally, they may be of industrial or biotechnological importance. Fungal diseases of humans tend to be most important in tropical environments and in immuno-compromised subjects.

Pathogenic (that is, disease-causing) microorganisms have special characteristics, or virulence factors, that enable them to colonise their hosts and overcome or evade physical, biochemical, and immunological host defences. For example, the presence of capsules, as in the bacteria that cause anthrax (Bacillus anthracis), one form of pneumonia (Streptococcus pneumoniae), scarlet fever (S. pyogenes), bacterial meningitis (Neisseria meningitidis, Haemophilus in?uenzae) is directly related to the ability to cause disease because of their antiphagocytic properties. Fimbriae are related to virulence, enabling tissue attachment – for example, in gonorrhoea (N. gonorrhoeae) and cholera (Vibrio cholerae). Many bacteria excrete extracellular virulence factors; these include enzymes and other agents that impair the host’s physiological and immunological functions. Some bacteria produce powerful toxins (excreted exotoxins or endogenous endotoxins), which may cause local tissue destruction and allow colonisation by the pathogen or whose speci?c action may explain the disease mechanism. In Staphylococcus aureus, exfoliative toxin produces the staphylococcal scalded-skin syndrome, TSS toxin-1 toxic-shock syndrome, and enterotoxin food poisoning. The pertussis exotoxin of Bordetella pertussis, the cause of whooping cough, blocks immunological defences and mediates attachment to tracheal cells, and the exotoxin produced by Corynebacterium diphtheriae causes local damage resulting in a pronounced exudate in the trachea.

Viruses cause disease by cellular destruction arising from their intracellular parasitic existence. Attachment to particular cells is often mediated by speci?c viral surface proteins; mechanisms for evading immunological defences include latency, change in viral antigenic structure, or incapacitation of the immune system – for example, destruction of CD 4 lymphocytes by the human immunode?ciency virus.... microbiology

Penicillin

The name given by Sir Alexander Fleming, in 1929, to an antibacterial substance produced by the mould Penicillium notatum. The story of penicillin is one of the most dramatic in the history of medicine, and its introduction into medicine initiated a new era in therapeutics comparable only to the introduction of ANAESTHESIA by Morton and Simpson and of ANTISEPTICS by Pasteur and Lister. The two great advantages of penicillin are that it is active against a large range of bacteria and that, even in large doses, it is non-toxic. Penicillin di?uses well into body tissues and ?uids and is excreted in the urine, but it penetrates poorly into the cerebrospinal ?uid.

Penicillin is a beta-lactam antibiotic, one of a group of drugs that also includes CEPHALOSPORINS. Drugs of this group have a four-part beta-lactam ring in their molecular structure and they act by interfering with the cell-wall growth of mutliplying bacteria.

Among the organisms to which it has been, and often still is, active are: streptococcus, pneumococcus, meningococcus, gonococcus, and the organisms responsible for syphilis and for gas gangrene (for more information on these organisms and the diseases they cause, refer to the separate dictionary entries). Most bacteria of the genus staphylococcus are now resistant because they produce an enzyme called PENICILLINASE that destroys the antibiotic. A particular problem has been the evolution of strains resistant to methicillin – a derivative originally designed to conquer the resistance problem. These bacteria, known as METHICILLINRESISTANT STAPHYLOCOCCUS AUREUS (MRSA), are an increasing problem, especially after major surgery. Some are also resistant to other antibiotics such as vancomycin.

An important side-e?ect of penicillins is hypersensitivity which causes rashes and sometimes ANAPHYLAXIS, which can be fatal.

Forms of penicillin These include the following broad groups: benzylpenicillin and phenoxymethyl-penicillin; penicillinase-resistant penicillins; broad-spectrum penicillins; antipseudomonal penicillins; and mecillinams. BENZYLPENICILLIN is given intramuscularly, and is the form that is used when a rapid action is required. PHENOXYMETHYLPENICILLIN (also called penicillin V) is given by mouth and used in treating such disorders as TONSILLITIS. AMPICILLIN, a broad-spectrum antibiotic, is another of the penicillins derived by semi-synthesis from the penicillin nucleus. It, too, is active when taken by mouth, but its special feature is that it is active against gram-negative (see GRAM’S STAIN) micro-organisms such as E. coli and the salmonellae. It has been superceded by amoxicillin to the extent that prescriptions for ampicillin written by GPs in the UK to be dispensed to children have fallen by 95 per cent in the last ten years. CARBENICILLIN, a semi-synthetic penicillin, this must be given by injection, which may be painful. Its main use is in dealing with infections due to Pseudomonas pyocanea. It is the only penicillin active against this micro-organism which can be better dealt with by certain non-penicillin antibiotics. PIPERACILLIN AND TICARCILLIN are carboxypenicillins used to treat infections caused by Pseudomonas aeruginosa and Proteus spp. FLUCLOXACILLIN, also a semi-synthetic penicillin, is active against penicillin-resistant staphylococci and has the practical advantage of being active when taken by mouth. TEMOCILLIN is another penicillinase-resistant penicillin, e?ective against most gram-negative bacteria. AMOXICILLIN is an oral semi-synthetic penicillin with the same range of action as ampicillin but less likely to cause side-effects. MECILLINAM is of value in the treatment of infections with salmonellae (see FOOD POISONING), including typhoid fever, and with E. coli (see ESCHERICHIA). It is given by injection. There is a derivative, pivmecillinam, which can be taken by mouth. TICARCILLIN is a carboxypenicillin used mainly for serious infections caused by Pseudomonas aeruginosa, though it is also active against some gram-negative bacilli. Ticarcillin is available only in combination with clarulanic acid.... penicillin

Punica Granatum

Linn.

Family: Punicaceae.

Habitat: Native to Iran; but cultivated throughout India.

English: Pomegranate.

Ayurvedic: Daadima, Daadim- ba, Raktapushpa, Dantabijaa, Raktakusumaa, Lohitpushpaka.

Unani: Anaar, Roomaan, Gulnaar, Gulnaar Farsi.

Siddha/Tamil: Maathulai.

Action: Rind of fruit—astringent, stomachic, digestive. Used for diarrhoea, dysentery, colitis, dyspepsia and uterine disorders. Leaf—used in stomatitis (recommended by The Ayurvedic Pharmacopoeia of India). Fresh juice of fruit—refrigerant, cosive, antiemetic; given as an adjuvant in diarrhoea, dyspepsia, biliousness, inflammations of the stomach, palpitation, excessive thirst and fevers. Bark of stem and root—anthelmintic, febrifuge. Given for night sweats. Rind of fruit, bark of stem and root— antidiarrhoeal. Powdered flower buds—used in bronchitis.

The fruit rind (dried) contains up to 26, stem bark 10-25, root bark 28 and leaves 11% tannin.

The rind gave an ellagitannin (granatin B, leaves gave granatins A and B and punicafolin); punicalagin, puni- calin and ellagic acid. Pentose gly- cosides of malvidin and pentunidin have also been isolated from the rind. Rind extract showed significant hypo- glycaemic activity in mildly diabetic rats.

Seeds gave malvidin pentose glyco- side.

Flowers gave pelargonidin-3,5-di- glucoside; also sitosterol, ursolic acid, maslinic acid, asiatic acid, sitosterol- beta-D-glucoside and gallic acid.

Extracts of the whole fruit were highly active against Micrococcus pyo- genes var. aureus, E. coli and Pseudomonas aeruginosa; also very effective against intestinal pathogenic bacilli.

Aqueous extract of the root was found to inhibit the activity of My- cobacterium tuberculosis 607.

The proanthocyanidins of pomegranate showed hypolipidaemic activity by their ability to enhance resistance of vascular wall preventing penetration of cholesterol into atherogenic lipopro- teins.... punica granatum

Rosmarinus Officinalis

Linn.

Family: Labiatae; Lamiaceae.

Habitat: Native to the Mediterranean region, cultivated in Nilgiri Hills.

English: Rosemary.

Folk: Rusmari.

Action: Essential oil from flowers and leaves—anti-inflammatory, astringent, antiseptic, stomachic, carminative; used externally in circulatory disorders. Flowering tops and leaves—carminative, diuretic, emmenagogue; vapor baths afford relief in incipient catarrh, rheumatism and muscular affections.

Key application: Leaf—internally in dyspeptic complaints; externally in supportive therapy for rheumatic diseases and circulatory problems. (German Commission E.) Shows improvement of hepatic and biliary function.(ESCOP.) Carminative, spasmolytic of hepatic and biliary function. (ESCOP.) Carminative, spasmolytic. (The British Herbal Pharmacopoeia.)

In research using rats, the essential oil and ethanolic extract of rosemary decreased drug-induced hepatotoxici- ty and the suppression of bone marrow cells. Phenolic compounds in the herb exhibit antioxidant activity. (Sharon M. Herr.)

The herb contains volatile oil (1.02.5%), composed mainly of 1, 8-cineole (20-25%), alpha-pinene (15-25%), camphor (10-25%), others include bor- neol, isobutyl acetate, camphene, li- monene, linalool, 3-octanone, terpine- ol, verbenol; flavonoids including api- genin, diosmetin, diosmin; rosmarinic acid and other phenolic acids; diter- penes; rosmaricine; ursolic acid, olea- nolic acid and their derivatives.

The anti-inflammatory effect of Rosemary has been attributed to ros- marinic acid, ursolic acid and apigenin. Among flavonoids, diosmin is reported to be more effective in decreasing capillary fragility than rutin. A ros- maricine derivative exhibits stimulant and mild analgesic activity.

The phenolic fraction, isolated from the leaves, also from the oil, exhibits antioxidant activity.

Pressed juice of leaves possesses a strong antibacterial action on Staphylococcus aureus, E. coli and Bacillis sub- tilis.

An infusion of the plant with borax is used as a hair wash for preventing hair loss.

Rosemary oil, in combination with the essential oil from thyme, lavender and cedarwood, showed improvement in hair growth by 44% after 7 months of treatment for alopecia areata. (Natural Medicines Comprehensive Database, 2007.)... rosmarinus officinalis

Arthritis – Tuberculous

A chronic bone and joint condition due to bovine from of tuberculosis believed to be caused by drinking TB milk and cream. Mostly in children, beginning in fluids surrounding a joint before invading bone tissue. Instead of normal flesh colour a joint has a white appearance. Condition maybe secondary to disease of the lungs or glands. Pain worse at night.

Elecampane (Inula) has a direct effect on TB bacilli, controlling night sweats and localising the disease. Agents yielding salicylates (mild analgesics) Meadowsweet, White Willow, etc are of value. Echinacea increases phagocytic power of the leucocytes and may normalise percentage count of neutraphiles. To meet individual needs, it will be necessary to vary treatment many times during the course of the disease.

Alternatives. Echinacea, Elecampane, Balm of Gilead buds (Hyde), Gotu Kola, Comfrey root, Iceland Moss. Rupturewort promotes elasticity of lung tissue.

Decoction. Equal parts: Iceland Moss, Comfrey root, Elecampane root, Liquorice. Mix. 1oz to 1 pint water gently simmered 20 minutes in a covered vessel. Dose: Half a cup thrice daily.

Alternative formulae:– Powders. White Willow 2; Comfrey 1; Echinacea 1; Ginger quarter. Mix. Dose: 750mg (three 00 capsules or half a teaspoon) thrice daily.

Tinctures. White Willow 2; Echinacea 1; Blue Cohosh half; White Poplar half; Tincture Capsicum quarter. Mix. 1 teaspoon thrice daily before meals.

Tincture Krameria (Rhatany root), Dose: 30-60 drops in water thrice daily.

Fenugreek seed tea.

Comfrey. Potential benefit of Comfrey root outweighs risk.

Topical. Compresses: Mullein leaves, Lobelia, Comfrey root or Fenugreek. Evening Primrose oil. No massage to affected joints.

Diet. Low carbohydrate. Oily fish.

Supplements. Vitamins A, B6, B12, D, Niacin, Calcium, Iron, Phosphorus.

General. Tuberculosis is a notifiable disease for which specific medical treatment is available. Failure to comply may expose a practitioner to a charge of negligence. ... arthritis – tuberculous

Candida, Vaginal

 Fungus infection by Candida albicans and other organisms including Torilopsis glabrala. Causes: oral contraceptives, broad spectrum antibiotics, iron deficiency anaemia, diabetes, steroid therapy, pregnancy, high sugar diet, alcohol. When sexually transmitted may appear together with mixed organisms which prove difficult to eliminate.

Greater incidence of the condition is found in women. By interfering with the hormone balance The Pill raises the female body to a constant state of false pregnancy. This affects the character of vaginal secretions and favours growth of fungi. Oestrogens in contraceptive pills create a tissue climate conducive to Candida. Vaginal deodorants and scented soaps irritate. Because of its effect upon the Fallopian tubes it is a common cause of infertility.

Symptoms. Vulva itching, soreness, white discharge of watery to cheesy consistency. Urination painful, recurring cystitis, irritability, premenstrual and menstrual problems, anxiety, heartburn and dyspepsia. Alternatives. Teas. Agnus Castus, Balm, Barberry bark, Chamomile, La Pacho (Pau d’arco), Sage, Thyme.

Tablets/capsules. Agnus Castus, Goldenseal, Pulsatilla, Poke root, Thuja, Garlic, La Pacho.

Tincture Thuja. 15-30 drops in water, once daily.

Tinctures. Combination for the average case. Echinacea 30ml; Calendula 15ml; Goldenseal 15ml; Ladysmantle 15ml. Dose: one 5ml teaspoon thrice daily. (Brenda Cooke MNIMH, Mansfield, Notts) Topical. Tea Tree oil pessaries/cream. Alternative:– (1) Impregnate tampon with plain yoghurt and insert into vagina. Or: inject with spermicidal cream applicator or cardboard tampon applicator 2-3 teaspoons yoghurt into vagina 2-3 times daily. The theory is that the lacto-bacilli in the yoghurt competes with the candida and finally reduces it to normal levels.

(2) 2-3 teaspoons Distilled Extract Witch Hazel to cup of water for cooling antiseptic lotion.

(3) 1-2 drops Eucalyptus oil well-shaken in 4oz (120ml) Distilled Extract Witch Hazel. Reputed to kill colonies of candida albicans and allay irritation.

(4) Aloe Vera gel.

(5) Capricin.

(6) Cloves are anti-fungal and may be chewed.

(7) Calendula and Hydrastis pessaries.

Avoid surgical spirit antiseptics. A smear of Olive oil or yoghurt or No 3 above to allay irritation. Frequent washing, hot baths and use of soap at first soothe, but later exacerbate. Use water only. When washing, wipe from front to back to avoid spreading spores from bowel. No smoking.

Diet. Gluten-free, low fat, high fibre.

Acidophilus. A large mixed salad once daily. Cooked vegetables, seafood, Vitamin A foods. Replace salt with Celery, Garlic or Kelp powders. All meats, game and chicken to be from animals raised on steroid-free fodder. Replace alcohol with fresh fruit and vegetable juices. Eggs.

Reject: Dairy products (butter, cheese, milk). Brewer’s yeast. Foods and drinks with which yeast has been associated: bread, beer, homemade wines. Dried fruit, mushrooms, monosodium glutamate, pickles and preserves, smoked fish and meats, foods known to be allergic to the patient, sugar, syrup, sweeteners, chocolate, puddings, pastry, white flour products.

Supplements. Daily. Vitamin A 7500iu, Vitamin C 200mg. Zinc. ... candida, vaginal

Horse Radish

Cochlearia armoracia L. Armoracia rusticana, Gaertn. Part used: root.

Constituents: asparagine, B vitamins, Vitamin C, sinigrin and other glucosinolates, resin.

Action: efficient alternative to Cayenne pepper, Diuretic, urinary antispetic, diaphoretic, carminative; liver, spleen and pancreatic stimulant. Bacteriostatic action on Gram-negative bacilli. (Rudat K.D. (1957) Journal Hyg. Epidem. Microbiol. Immunol. Prague 1213)

To raise vital force in the elderly. Antibiotic. Circulatory stimulant with warming effect. Digestive aid. Anti-thyroid.

Uses: Feeble circulation, hypothermia, hyperthyroidism, frostbite, chilblains, absence of stomach acid in the elderly, dropsy following fevers, proteinuria (albuminuria), to arrest vaginal discharge. Hoarseness (1 teaspoon juice in honey). Rheumatic joints (poultice). Common cold, influenza and early stages of fever: cup of Horse Radish tea every 2-3 hours. Combine with Juniper berries (equal parts) for dropsy and kidney stone. Purulent wounds: cold decoction used as a lotion.

Preparations: Average dose: 1-2 grams; thrice daily.

Tea: 1 teaspoon grated fresh root in each cup boiling water; infuse 20 minutes. Half-1 cup in sips, freely. Horse Radish vinegar. 1oz scraped fresh root to 1 pint cider vinegar. 1-2 teaspoons in water for catarrh, sinusitis, poor circulation or as a male tonic.

Steeping slices of the fresh root in cider produces a copious discharge of urine in dropsy.

Tablets, Blackmore’s Labs: Horse Radish powder 350mg; Dolomite 140mg; Gum Acacia 20mg; Magnesium stearate 10mg.

Diet: Mayonnaise: whip double cream until stiff and fold in fresh grated root, flaked almonds, lemon juice and seasoning, with a little Paprika.

Note: One of the five bitter herbs eaten by the Jews during the Passover Festival. ... horse radish

Bcg Vaccination

A vaccine that provides immunity against tuberculosis. is prepared from an artificially weakened strain of bovine (cattle) tubercle bacilli, the microorganisms responsible for the disease. stands for “bacille Calmette–Guérin”, after the 2 Frenchmen who developed the vaccine in 1906. is given to people at risk of tuberculosis and for whom a tuberculin test is negative.

These people include health workers, contacts of people who have tuberculosis, and immigrants (including children) from countries with a high rate of tuberculosis.

Infants born to immigrants in this category are immunized, without having a tuberculin test, within a few days of birth.

The vaccine is also recommended for children aged 10–14 years for whom the test is negative.... bcg vaccination

Abscess

n. a localized collection of pus and necrotic tissue anywhere in the body, surrounded and walled off by damaged and inflamed tissues. A *boil is an example of an abscess within the skin. The usual cause is local bacterial infection, often by staphylococci, that the body’s defences have failed to overcome. In a cold abscess, due to tubercle bacilli, there is swelling, but little pain or inflammation (as in acute abscesses). Antibiotics, aided by surgical incision to release pus where necessary, are the usual forms of treatment.

The brain and its meninges have a low resistance to infection and a cerebral abscess is liable to follow any penetration of these by microorganisms. The condition is fatal unless relieved by aspiration or surgical drainage.... abscess

Bartonellosis

n. an infectious disease, largely confined to high river valleys in Peru, Ecuador, and Colombia, caused by the bacterium *Bartonella bacilliformis. The parasite, present in red blood cells and cells of the lymphatic system, is transmitted to humans by sandflies. There are two clinical types of the disease: Oroya fever (Carrion’s disease), whose symptoms include fever, anaemia, and enlargement of the liver, spleen, and lymph nodes; and verruga peruana, characterized by wartlike eruptions on the skin that can bleed easily and ulcerate. Oroya fever accounts for nearly all fatalities. Bartonellosis can be treated successfully with penicillin and other antibiotics and blood transfusions may be given to relieve the anaemia.

Other species of Bartonella cause *cat-scratch disease and *trench fever.... bartonellosis

Tuberculosis

(TB) n. an infectious disease caused by the bacillus Mycobacterium tuberculosis (first identified by Koch in 1882) and characterized by the formation of nodular lesions (tubercles) in the tissues.

In pulmonary tuberculosis – formerly known as consumption and phthisis (wasting) – the bacillus is inhaled into the lungs where it sets up a primary tubercle and spreads to the nearest lymph nodes (the primary complex). Natural immune defences may heal it at this stage; alternatively the disease may smoulder for months or years and fluctuate with the patient’s resistance. Many people become infected but show no symptoms. Others develop a chronic infection and can transmit the bacillus by coughing and sneezing. Symptoms of the active disease include fever, night sweats, weight loss, and the spitting of blood. In some cases the bacilli spread from the lungs to the bloodstream, setting up millions of tiny tubercles throughout the body (miliary tuberculosis), or migrate to the meninges to cause tuberculous *meningitis. Bacilli entering by the mouth, usually in infected cows’ milk, set up a primary complex in abdominal lymph nodes, leading to *peritonitis, and sometimes spread to other organs, joints, and bones (see Pott’s disease).

Tuberculosis is curable by various combinations of the antibiotics *streptomycin, *ethambutol, *isoniazid (INH), *rifampicin, and *pyrazinamide. Preventive measures in the UK include the detection of cases by X-ray screening of vulnerable populations and vaccination with *BCG vaccine of those with no immunity to the disease (the *tuberculin test identifies which people require vaccination). The childhood immunization schedule no longer includes BCG vaccination at 10–14 years of age; vaccination now targets high-risk groups, such as immigrants from countries with a high incidence of TB. There has been a resurgence of tuberculosis in recent years in association with HIV infection. The number of patients with multidrug resistant TB has also increased due to patients not completing drug courses. Many centres have introduced directly observed therapy (DOT), in which nurse practitioners watch patients taking their drugs or administer the drugs.... tuberculosis




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