A formal statement of desirable behaviour that research workers or practitioners are expected to honour. There may be penalties for violation.
Genes carry, in coded form, the detailed speci?cations for the thousands of kinds of protein molecules required by the cell for its existence, for its enzymes, for its repair work and for its reproduction. These proteins are synthesised from the 20 natural AMINO ACIDS, which are uniform throughout nature and which exist in the cell cytoplasm as part of the metabolic pool. The protein molecule consists of amino acids joined end to end to form long polypeptide chains. An average chain contains 100–300 amino acids. The sequence of bases in the nucleic acid chain of the gene corresponds in some fundamental way to the sequence of amino acids in the protein molecule, and hence it determines the structure of the particular protein. This is the genetic code. Deoxyribonucleic acid (see DNA) is the bearer of this genetic information.
DNA has a long backbone made up of repeating groups of phosphate and sugar deoxyribose. To this backbone, four bases are attached as side groups at regular intervals. These four bases are the four letters used to spell out the genetic message: they are adenine, thymine, guanine and cystosine. The molecule of the DNA is made up of two chains coiled round a common axis to form what is called a double helix. The two chains are held together by hydrogen bonds between pairs of bases. Since adenine only pairs with thymine, and guanine only with cystosine, the sequences of bases in one chain ?xes the sequence in the other. Several hundred bases would be contained in the length of DNA of a typical gene. If the message of the DNA-based sequences is a continuous succession of thymine, the RIBOSOME will link together a series of the amino acid, phenylalanine. If the base sequence is a succession of cytosine, the ribosome will link up a series of prolines. Thus, each amino acid has its own particular code of bases. In fact, each amino acid is coded by a word consisting of three adjacent bases. In addition to carrying genetic information, DNA is able to synthesise or replicate itself and so pass its information on to daughter cells.
All DNA is part of the chromosome and so remains con?ned to the nucleus of the cell (except in the mitochondrial DNA). Proteins are synthesised by the ribosomes which are in the cytoplasm. DNA achieves control over pro-tein production in the cytoplasm by directing the synthesis of ribonucleic acid (see RNA). Most of the DNA in a cell is inactive, otherwise the cell would synthesise simultaneously every protein that the individual was capable of forming. When part of the DNA structure becomes ‘active’, it acts as a template for the ribonucleic acid, which itself acts as a template for protein synthesis when it becomes attached to the ribosome.
Ribonucleic acid exists in three forms. First ‘messenger RNA’ carries the necessary ‘message’ for the synthesis of a speci?c protein, from the nucleus to the ribosome. Second, ‘transfer RNA’ collects the individual amino acids which exist in the cytoplasm as part of the metabolic pool and carries them to the ribosome. Third, there is RNA in the ribosome itself. RNA has a similar structure to DNA but the sugar is ribose instead of deoxyribose and uracil replaces the base thymine. Before the ribosome can produce the proteins, the amino acids must be lined up in the correct order on the messenger RNA template. This alignment is carried out by transfer RNA, of which there is a speci?c form for each individual amino acid. Transfer RNA can not only recognise its speci?c amino acid, but also identify the position it is required to occupy on the messenger RNA template. This is because each transfer RNA has its own sequence of bases and recognises its site on the messenger RNA by pairing bases with it. The ribosome then travels along the chain of messenger RNA and links the amino acids, which have thus been arranged in the requisite order, by peptide bonds and protein is released.
Proteins are important for two main reasons. First, all the enzymes of living cells are made of protein. One gene is responsible for one enzyme. Genes thus control all the biochemical processes of the body and are responsible for the inborn di?erence between human beings. Second, proteins also ful?l a structural role in the cell, so that genes controlling the synthesis of structural proteins are responsible for morphological di?erences between human beings.... genetic code
conductive deafness Deafness caused by faulty conduction of sound from the outer to the inner ear.... conduct disorders
Rule 1. Members shall at all times conduct themselves in an honourable manner in their relations with their patients, the public, and with other members of the Institute.
The relationship between a medical herbalist and his or her patient is that of a professional with a client. The patient puts complete trust in the practitioner’s integrity and it is the duty of members not to abuse this trust in any way. Proper moral conduct must always be paramount in member’s relationships with patients. Members must act with consideration concerning fees and justification for treatment.
Rule 2. No member may advertise or allow his or her name to be advertised in any way, except in the form laid down by the Council of the Institute.
Any form of commercialism in the conduct of a herbal practice is unseemly and undesirable. Particular considerations govern commencement of practice, partnerships, assistantships, door plates, signs, letter headings, broadcasts, etc.
Rule 3. Members shall comply at all times with the requirements of the Code of Practice.
Rule 4. Members shall not give formal courses of instructions in the practice of herbal medicine without the approval of the Council of the Institute.
Rule 5. It is required that members apply the Code of Practice to all their professional activities.
Rule 6. Infringement of the Ethical Code renders members liable to disciplinary action with subsequent loss of privileges and benefits of the Institute. ... code of ethics
1. It is illegal for anyone not a registered medical practitioner to attempt to procure an abortion: a member must not knowingly administer an abortifacient or known uterine muscle stimulant remedies to a pregnant patient, nor instruments for the purpose of procuring an abortion, nor assist in any illegal operation.
2. It is required that any intimate examinations on a patient of the opposite sex be conducted in the presence of a relative of the patient or a suitable assistant.
3. A member must not treat or prescribe any remedy for gonorrhoea, syphilis, or urinary affections of a venereal nature.
4. It is the duty of the practitioner to notify the District Medical Officer regarding any disease on the current list of notifiable diseases. In cases of industrial poisoning or accident the local district branch of the Health and Safety Executive should be notified.
5. A member must consider very carefully the implications of recommending a course of treatment contrary to the advice of the patient’s registered medical practitioner or of not recommending referral to a registered medical practitioner in the case of serious disease or uncertain diagnosis. Members must be aware of their vulnerability in law on this issue and must ensure in such a case that all available information is given to the patient and that the patient makes the final decision without coercion.
6. A parent or supervising adult must be present at any treatment or examination of a child under the age of 16, or of a mentally-retarded patient.
7. The Data Protection Act means that any practitioner keeping patient’s data on computer file must register under the terms of the Act.
8. A member must become familiar with the terms of the Medicine’s Act 1968 and subsequent statutory instruments, notably the Medicines (Retail Sale or Supply of Herbal Remedies) Order 1977. Particular care should be taken to become familiar with the statutory maximum doses of those remedies listed in Schedule III of the latter order. Detailed records of prescriptions and dispensing must also be kept.
9. The Medicines Act further states that to claim exemptions from the restrictions on the supply of certain herbal remedies, the practitioner should supply said remedies from premises occupied by the practitioner and able to be closed so as to exclude the public.
10. The Medicines Act adds that to claim the said exemptions, the person supplying the remedy “sells or supplies it for administration to a particular person after being requested by or on behalf of that person and in that person’s presence to use his own judgement as to the treatment required”. The member should avoid treatment through telephone or postal contact, although repeat prescriptions may be supplied on this basis for a limited period.
11. Dispensing and labelling of medicines should at least comply with the terms of the Medicines Act. All medicines should be labelled to clearly indicate the correct dosage or other directions for use (especially for those remedies subject to a statutory maximum dose), and with the name and address of the practitioner and the date of dispensing.
12. A member should never claim verbally or in print to be able to cure any life-threatening or serious disease.
13. The distribution or display of letter headings, business cards or practice information should be compatible with the highest professional medical standards. ... code of practice
nerve injury Damage or severance of conducting fibres within a nerve as a result of trauma, causing loss of skin sensation and muscle power. (See neuropathy for nerve damage from cause.
other than injury.)
If a peripheral nerve (a nerve outside the brain or spinal cord) is only partially severed, the cut fibres may be able to regenerate. Provided the severed ends are still aligned, new fibres can grow across the cut to rejoin the connection, restoring function. If a nerve is totally severed, the individual fibres cannot regenerate successfully and there is no recovery of function. Nerve tracts within the brain and spinal cord are structurally different from the peripheral nerves, and severed fibres in these tracts do not regenerate. For example, vision cannot be restored if the optic nerves are cut.Microsurgery can sometimes be used to stitch a severed peripheral nerve into place, but recovery is rarely complete.... nerve conduction studies
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