To what extent does IQ 'explain' socio-economic variations in function?

Background  

The aims of this study were to examine the extent to which higher intellectual abilities protect higher socio-economic groups from functional decline and to examine whether the contribution of intellectual abilities is independent of childhood deprivation and low birth weight and other socio-economic and developmental factors in early life.     

Discordant repeat size and phenotype in Kennedy syndrome

Previous reports in the literature have described correlation of increasing repeat length with severity of the phenotype, in Kennedy syndrome. We describe male siblings with different repeat lengths, with lack of expression of the phenotype in the sibling with the longer repeat length. The phenotype was identical to motor neurone disease. There is variability of expression in Kennedy syndrome and repeat length even in siblings cannot be taken as a conclusive indicator of severity. CAG repeat length cannot be used to predict the natural history of Kennedy disease. The diagnosis of Kennedy syndrome should be considered in male patients presenting with atypical motor neurone disease.     

INTERFERONS IN ONCOLOGY

SUMMARY The interferons are natural glycoproteins secreted in response to various stimuli, including viral infection. They have antiviral, antiproliferative and immunomodulatory effects on different target cell populations. Since recombinant human interferons have become available, they have been tested in a wide range of malignancies. They are well established in the treatment of hairy cell leukaemia, chronic myelogenous leukaemia and multiple myeloma. Although they have documented activity against lymphoma, melanoma, renal cell cancer and carcinoid tumours, their role in the treatment of these tumours is less clear. In the common solid tumours, such as lung cancer and colorectal cancer, the use of interferons remains experimental. Here we will summarise their practice applications in oncology, using randomised studies where available to establish their place in multi-modality treatment. We will not discuss their use as antiviral or immunomodulating agents in viral and autoimmune diseases, multiple sclerosis or after organ transplantation.     

Abstracts

Purpose: To analyse trends in the incidence of registered age-related macular degeneration (ARMD) in the UK since 1950 and to compare these to trends in registration of other blinding diseases —cataract, glaucoma and optic atrophy over the same time period. Methods: Calculation of standardised registration ratios for ARMD, cataract, glaucoma and optic atrophy using published registratoin data from 1950 onwards. SRRs for each sex separately were calculated, adjusting for age in 5 year age-groups. Results: The absolute number of people registered blind annually has more than doubled since 1950. After adjustment for age, annual registration rates for blindness have fallen over the past 40 years, particularly with respect to cataract and glaucoma. Standardised registration ratios for ARMD exhibit a different pattern, increasing, but not consistently, over the same time period. Conclusions: These oberservations are consistent with the hypothesis that the incidence of registrable ARMD is increasing. Changes in the diagnosis and detection of this disease, however, cannot be excluded as an alternative explantation. Analysis of trends in national registration statistics may be useful for monitoring changes in the distribution of blinding eye disease in the population.