Irish journal of medical science
-
A relationship between bone turnover and the vitamin D receptor (VDR) genotype is reported in Australian subjects of UK-Irish descent. There is conflicting evidence of linkage between the VDR genotype and differences in bone mineral density. No such study has been carried out on a resident Irish population. ⋯ These findings suggest that healthy Irish adults with the tt VDR genotype have higher rates of bone turnover than those with Tt or TTVDR genotypes. They may have a higher risk of low bone mineral density and osteoporosis in later life.
-
Respiratory disease is the major cause of morbidity and mortality in cystic fibrosis (CF). The significance of Burkholderia cepacia (B. cepacia) in the pathogenesis of lung disease in CF is debated, but its exact role remains unclear. ⋯ Acquisition of B. cepacia may be a cause of, rather than a marker for, a decrease in pulmonary function.
-
The mortality and morbidity of patients with breast cancer can vary even between individuals with similar histological stage at diagnosis. Identification of those individuals with prognostically poorer tumours is an essential prerequisite in planning adjuvant therapies. Some prognostic indices of tumour size, grade, oestrogen receptor status and nodal status are well established. ⋯ The profiling of individual tumour genetic expression of proto-oncogenes may allow for more specific identification of patients at higher risk of recurrence in breast cancer.
-
Osteoporosis is a systemic skeletal disease characterised by low bone density and micro architectural deterioration of bone tissue with a consequent increase in bone fragility and susceptibility to fracture. It is a silent disease. It is the result of the negative balance between bone formation and bone resorption, i.e. more bone is lost than is formed. ⋯ Peak bone mass is determined by sex, heredity family history, race, diet and exercise. Sixty per cent of bone growth occurs during adolescence. Moderate exercise protects against osteoporosis, but too little or excessive exercise may cause osteoporosis.