1
547 investigate all women who have had a seizure during pregnancy or in the first ten days postpartum, irrespective of whether eclampsia is thought to be the cause. Finally, there must be greater political awareness of the need to improve funding and staffing because of the potential shortage of personnel in the next decade or more. "There is no room for complacency. Constant reminders to all those in authority of the priority of all aspects of maternity care are vital, for the children of today are the parents of tomorrow." 1. Maternal Mortality: the way forward: some implications of the Report on Confidential Enquiries into Maternal Deaths in the United Kingdom 1985-87. London: Royal College of Obstetricians and Gynaecologists. 1992. Pp 96. £7. ISBN 0-902331558. Familial testicular cancer If a man has a brother with testicular cancer, he stands a 9 times increased chance (compared with the general population) of having this disease by the time he is 50, according to the findings of the latest study of familial testicular cancer. Even if, as Fonnan et all say, this estimate is out by 100% the risk is greater than that of most other cancers: a man who has a father with the disease will still have a raised risk (4-fold). The UK researchers claim to have the largest series of testicular cancer world wide, and are confident of their findings. Although they examined the possibility of linkage to the major histocompatibility complex gene on chromosome 6, they could not prove, on the basis of the powerful sib-pair analysis, that there is a major gene association in testicular cancer families. Nonetheless, much of their evidence points to strong genetic links. Age at diagnosis was significantly lower in familial than non-familial cases (29 vs 32-5 years) and there was a substantial difference in age at onset between fathers and sons. This might indicate genetic anticipation, in which genetic conditions are more serious and appear earlier in successive generations. The presence of bilateral tumours was higher than expected (6% vs 2-5%), and other paired organs such as breast, eye, and kidney are more often affected bilaterally in familial cases. Certain families with familial disease had a strikingly high prevalence of other urogenital abnormalities, undescended testes, and inguinal hernia, although no significant associations with testicular cancer were seen. The next step is to investigate linkage with loci on other chromosomes. First-degree relatives of affected men might be well advised to practice self-examination of the testes in the meantime. 1. Forman D, Oliver RTD, Brett AR, et al. Familial testicular cancer: a report of the UK family register, estimation of risk and an HLA Class 1 sib-pair analysis. Br J Cancer 1992; 65: 255-62. Simvastatin Since its introduction in May, 1989, as a treatment for primary hypercholesterolaemia, the UK Committee on Safety of Medicines (CSM) has received 738 reports via the "yellow-card" system of adverse reactions to simvastatin (’Zocor’, MSD).l Abnormal hepatic function-typically raised serum alanine and aspartate transaminase-accounted for 36 reports. Hepatic dysfunction was usually mild and symptom-free, but there have been 5 reports of reversible hepatitis and 2 of jaundice. There have also been 48 reports of myalgia, 7 of increased serum creatine kinase concentrations, 3 of myositis, and 10 of myopathy, and there has been 1 report of severe myopathy in a patient who was taking simvastatin and cyclosporin. The CSM believes that the 5 reports they have received of cataract with simvastatin a possible side-effect suggested by studies in dogs-do not indicate a problem with the drug. Other adverse reactions include 65 reports of headache, 44 of skin rash, 34 of diarrhoea, 20 of insomnia, 19 of abdominal pain, 17 of dyspepsia, 12 of depression, and 11 of arthralgia. The safety profile from spontaneous reports is similar to that seen in clinical trials. The CSM warns that because the therapeutic benefit of simvastatin can only be maintained by long-term treatment, continued vigilance is important. 1. Anon. In focus: simvastatin. Current Problems; Feb 1992. Cascade of change The [14 billion UK annual community care budget needs more professional and flexible management to enable sufficient resources to be channelled to users and carers, according to the latest report of the Audit Commission.1 Despite the principles of interagency cooperation defined in the Community Care Act, 1990, health and local authorities still have different priorities and often fail to draw up an agreed agenda for service provision. The difficulties of implementing effective management are compounded by the patchwork nature of community services: health authority and social service boundaries are "hopelessly entangled," which prevents both short-term and strategic planning initiatives from being successfully realised. Service providers are often slow to respond to local needs and coordination of primary and hospital care with social services is frequently poor. The report recommends a clear distinction be drawn between "care managers"-those who must plan care on behalf of users and carers-and the service providers. Care managers can establish locally integrated community care (LINCC) schemes to provide a seamless service between providers. Implementation of the 1990 Act is only half completed2 and considerable rationalisation and re-organisation of health-service bureaucracy must take place if its aims are not to be thwarted. 1. Audit Commission. Community care: managing the cascade of change. London: HMSO, 1992. Pp 49. £8.50. 2. Editorial. Long-term care in the UK: do we need it, does it matter, who will pay? Lancet 1992; 339: 96-97. Snakes alive! Promiscuity is traditionally a male prerogative, but a study from Sweden suggests that females improve their chances of producing healthy offspring if they indulge in multiple matings.l Female members of a small community living in the grassy meadows of southern Sweden, apparently oblivious of the attentions of four voyeuristic scientists, mated up to eight times in three weeks but tended to avoid copulating with the same male more than once. Stillbirths were common in this population (31%), but the most promiscuous females were the least at risk. Madsen et aP suggest that, in multiple matings, competition between sperm within the female reproductive tract ensures that the genetically "better" males become fathers and pass on their "good" genes to their offspring- and so, in theory, the more competitors the better. Females are notoriously choosy, but their judgment may not always be sound. The female viper, for one, is apparently unable to spot the male most likely to give her live-born children. The stillbirth rate varied widely among females that had mated with only one male: three of seven males fathered 71 % livebom offspring, but two produced only dead infants. 1. Madsen T, Shine R, Loman J, Hakansson T. Why do female adders copulate so frequently? Nature 1992; 355: 440-41. Amalgam amalgamation? We are, perhaps, what we eat. But what we eat with might get overlooked. Enamel and dentine are all very well, from a crematorial point of view, but filling materials, particularly mercury-based amalgams, are causing increasing concern to environmentalists; Germany has limited amalgam fillings to molars (see Lancet Feb 15, p 419). In Sweden alone, some 360 kg of mercury has been said to be released into the atmosphere by crematoria in 1988; during cremation the jawbone is heated to 650°C, whereas mercury boils at about 350°C. Extraction, although no doubt less painful than when alive, is unlikely to be a popular solution. A researcher in Sweden now suggests an alternative, the ’Emcoplate’ ampoule.1 The ampoule is designed such that, when placed on the coffin before cremation, it releases as vapour its selenium contents at the same time that mercury is released from the fillings. 85% of the mercury is likely to be transformed into mercury selenide; grey, harmless crystals that can be raked out with the ashes. 1. Anonymous. Science & Technology Newsletter. Stockholm: Swedish International Press Bureau, September, 1991.

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Page 1: Amalgam amalgamation?

547

investigate all women who have had a seizure during pregnancy orin the first ten days postpartum, irrespective of whether eclampsia isthought to be the cause. Finally, there must be greater politicalawareness of the need to improve funding and staffing because ofthe potential shortage of personnel in the next decade or more."There is no room for complacency. Constant reminders to all thosein authority of the priority of all aspects of maternity care are vital,for the children of today are the parents of tomorrow."

1. Maternal Mortality: the way forward: some implications of the Report on ConfidentialEnquiries into Maternal Deaths in the United Kingdom 1985-87. London: RoyalCollege of Obstetricians and Gynaecologists. 1992. Pp 96. £7. ISBN 0-902331558.

Familial testicular cancer

If a man has a brother with testicular cancer, he stands a 9 timesincreased chance (compared with the general population) of havingthis disease by the time he is 50, according to the findings of thelatest study of familial testicular cancer. Even if, as Fonnan et allsay, this estimate is out by 100% the risk is greater than that of mostother cancers: a man who has a father with the disease will still have araised risk (4-fold). The UK researchers claim to have the largestseries of testicular cancer world wide, and are confident of theirfindings. Although they examined the possibility of linkage to themajor histocompatibility complex gene on chromosome 6, theycould not prove, on the basis of the powerful sib-pair analysis, thatthere is a major gene association in testicular cancer families.Nonetheless, much of their evidence points to strong genetic links.Age at diagnosis was significantly lower in familial than non-familialcases (29 vs 32-5 years) and there was a substantial difference in ageat onset between fathers and sons. This might indicate geneticanticipation, in which genetic conditions are more serious andappear earlier in successive generations. The presence of bilateraltumours was higher than expected (6% vs 2-5%), and other pairedorgans such as breast, eye, and kidney are more often affectedbilaterally in familial cases. Certain families with familial disease hada strikingly high prevalence of other urogenital abnormalities,undescended testes, and inguinal hernia, although no significantassociations with testicular cancer were seen. The next step is to

investigate linkage with loci on other chromosomes. First-degreerelatives of affected men might be well advised to practiceself-examination of the testes in the meantime.

1. Forman D, Oliver RTD, Brett AR, et al. Familial testicular cancer: a report of the UKfamily register, estimation of risk and an HLA Class 1 sib-pair analysis. Br J Cancer1992; 65: 255-62.

Simvastatin

Since its introduction in May, 1989, as a treatment for primaryhypercholesterolaemia, the UK Committee on Safety of Medicines(CSM) has received 738 reports via the "yellow-card" system ofadverse reactions to simvastatin (’Zocor’, MSD).l Abnormalhepatic function-typically raised serum alanine and aspartatetransaminase-accounted for 36 reports. Hepatic dysfunction wasusually mild and symptom-free, but there have been 5 reports ofreversible hepatitis and 2 of jaundice. There have also been 48reports of myalgia, 7 of increased serum creatine kinase

concentrations, 3 of myositis, and 10 of myopathy, and there hasbeen 1 report of severe myopathy in a patient who was takingsimvastatin and cyclosporin. The CSM believes that the 5 reportsthey have received of cataract with simvastatin a possibleside-effect suggested by studies in dogs-do not indicate a problemwith the drug. Other adverse reactions include 65 reports ofheadache, 44 of skin rash, 34 of diarrhoea, 20 of insomnia, 19 ofabdominal pain, 17 of dyspepsia, 12 of depression, and 11 ofarthralgia. The safety profile from spontaneous reports is similar tothat seen in clinical trials. The CSM warns that because thetherapeutic benefit of simvastatin can only be maintained bylong-term treatment, continued vigilance is important.

1. Anon. In focus: simvastatin. Current Problems; Feb 1992.

Cascade of change

The [14 billion UK annual community care budget needs moreprofessional and flexible management to enable sufficient resourcesto be channelled to users and carers, according to the latest report ofthe Audit Commission.1 Despite the principles of interagencycooperation defined in the Community Care Act, 1990, health andlocal authorities still have different priorities and often fail to drawup an agreed agenda for service provision. The difficulties ofimplementing effective management are compounded by thepatchwork nature of community services: health authority andsocial service boundaries are "hopelessly entangled," which

prevents both short-term and strategic planning initiatives frombeing successfully realised. Service providers are often slow torespond to local needs and coordination of primary and hospital carewith social services is frequently poor. The report recommends aclear distinction be drawn between "care managers"-those whomust plan care on behalf of users and carers-and the serviceproviders. Care managers can establish locally integratedcommunity care (LINCC) schemes to provide a seamless servicebetween providers. Implementation of the 1990 Act is only halfcompleted2 and considerable rationalisation and re-organisation ofhealth-service bureaucracy must take place if its aims are not to bethwarted.

1. Audit Commission. Community care: managing the cascade of change. London:HMSO, 1992. Pp 49. £8.50.

2. Editorial. Long-term care in the UK: do we need it, does it matter, who will pay?Lancet 1992; 339: 96-97.

Snakes alive!

Promiscuity is traditionally a male prerogative, but a study fromSweden suggests that females improve their chances of producinghealthy offspring if they indulge in multiple matings.l Femalemembers of a small community living in the grassy meadows ofsouthern Sweden, apparently oblivious of the attentions of fourvoyeuristic scientists, mated up to eight times in three weeks buttended to avoid copulating with the same male more than once.Stillbirths were common in this population (31%), but the mostpromiscuous females were the least at risk. Madsen et aP suggestthat, in multiple matings, competition between sperm within thefemale reproductive tract ensures that the genetically "better" malesbecome fathers and pass on their "good" genes to their offspring-and so, in theory, the more competitors the better. Females arenotoriously choosy, but their judgment may not always be sound.The female viper, for one, is apparently unable to spot the male mostlikely to give her live-born children. The stillbirth rate varied widelyamong females that had mated with only one male: three of sevenmales fathered 71 % livebom offspring, but two produced only deadinfants.

1. Madsen T, Shine R, Loman J, Hakansson T. Why do female adders copulate sofrequently? Nature 1992; 355: 440-41.

Amalgam amalgamation?We are, perhaps, what we eat. But what we eat with might get

overlooked. Enamel and dentine are all very well, from a crematorialpoint of view, but filling materials, particularly mercury-basedamalgams, are causing increasing concern to environmentalists;Germany has limited amalgam fillings to molars (see Lancet Feb 15,p 419). In Sweden alone, some 360 kg of mercury has been said to bereleased into the atmosphere by crematoria in 1988; duringcremation the jawbone is heated to 650°C, whereas mercury boils atabout 350°C. Extraction, although no doubt less painful than whenalive, is unlikely to be a popular solution. A researcher in Swedennow suggests an alternative, the ’Emcoplate’ ampoule.1 Theampoule is designed such that, when placed on the coffin beforecremation, it releases as vapour its selenium contents at the sametime that mercury is released from the fillings. 85% of the mercuryis likely to be transformed into mercury selenide; grey, harmlesscrystals that can be raked out with the ashes.

1. Anonymous. Science & Technology Newsletter. Stockholm: Swedish InternationalPress Bureau, September, 1991.