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Biomedical subjects

K Buckingham

Publications and source records attributed to K Buckingham.

13 recordsLinked to original sources
PubMed1997

Sociodemographic and morbidity indicators of need in relation to the use of community health services: observational study.

OBJECTIVE: To examine whether the sociodemographic and morbidity characteristics of populations influence their use of the following community heath services: district nursing, health visiting, chiropody, community maternity, community mental illness, and the professions allied to medicine. DESIGN: Observational study. SETTING: Nationally representative sample of provider trusts in England. MAIN OUTCOME MEASURES: Activity levels for each service calculated for enumeration districts within the catchment areas of the sample of trusts and standardised to allow for differences in age structure. Regression analysis to determine whether the standardised activity rates for each service could be predicted by a range of socio-demographic and morbidity proxies. RESULTS: Morbidity or deprivation, or both, seemed to influence the use of services in each of the care programmes examined. CONCLUSIONS: The allocation of funds for community health services should allow for differences in the health and socio-demographic characteristics of health authorities.

Adolescent↗
PubMed1996

Using census information to estimate GP practice morbidity.

This paper shows how small area census data can be used to estimate the socio-demographic characteristics of GP practices. It provides information on the likely accuracy of the technique by applying it to estimates of the proportion of elderly patients within a practice (a statistic known from other sources) and produces evidence which suggests that the method is most successful where practices serve a high proportion of patients within their catchment.

Aged↗
PubMed1996

A cost comparison of hysterectomy and hysteroscopic surgery for the treatment of menorrhagia.

OBJECTIVES: To estimate and compare the costs of treating women with menorrhagia by hysterectomy or hysteroscopic surgery, in the form of transcervical resection of the endometrium (TCRE) or endometrial laser ablation (ELA). STUDY DESIGN: Randomised controlled trial set in the gynaecological department of a large British teaching hospital. Under usual circumstances, 204 women who would have undergone hysterectomy for menorrhagia were randomly allocated to either hysterectomy (n = 99) or hysteroscopic surgery in the form of TCRE (n = 52) or ELA (n = 53). National Health Service (NHS) costs and costs to patients per patient occurring up to 1 year following surgery were estimated. Theatre times and length of hospital stay were recorded during the trial. Costs were obtained from the health board finance department and relevant suppliers of technical equipment. One year after treatment patients completed questionnaires on personal costs incurred. RESULTS: The NHS costs of treating women with hysteroscopic surgery were 24% (TCRE) or 20% (ELA) less than treating women by hysterectomy (1001 pounds/1046 pounds vs. 1315 pounds). On average, women undergoing hysteroscopic surgery incurred 71% less costs to themselves than those who underwent hysterectomy (21 pounds vs. 73.40 pounds). CONCLUSIONS: Hysteroscopic endometrial ablation incurs less costs than hysterectomy both to the National Health Service and to women alike, up to 1 year after surgery.

Costs and Cost Analysis↗
PubMed1994

The effect of allowing clinical discretion in ordering biochemical tests. Evaluation by complementary methods.

We describe the effects on costs, working patterns, and clinical behavior of installing a DAX "discretionary" biochemistry analyzer. Use of the new analyzer encouraged doctors to be more specific in requesting biochemical tests, which substantially reduced the number of tests requested and slightly reduced overall costs. Doctors preferred being able to order tests in this more specific way.

Autoanalysis↗
PubMed1994

Costing shared care.

Growing interest in shared health care schemes over the last decade has received additional impetus with the introduction of GP fund holding and the internal market in health care provision. Ken Buckingham and colleagues report on the relative costs of such a scheme for asthma in comparison with the costs of conventional outpatient care. Data was collected during a randomised controlled trial of shared or integrated care for patients with chronic asthma, who had been referred to a hospital outpatient clinic.

Asthma↗
PubMed1993

A note on HYE (healthy years equivalent)

This note presents a simplified description of the Healthy Years Equivalent (HYE) health outcome measure. I examine the claims made for the HYE and discuss their theoretical validity. The HYE is shown to be conceptually flawed because of confusions between the measures of value and the things being valued. Under close inspection the unnecessarily complicated multiple stage valuation used to determine the HYE is seen to be no more than an indirect way of asking the Time Trade-Off. For this reason the claimed superiority of the method over the Quality Adjusted Life Year (QALY) is rejected.

Attitude to Health↗
PubMed1993

Biotin-containing protein as a cause of false positive clones in gene probing with streptavidin/biotin.

Using a streptavidin/biotin labeling technique, we unintentionally cloned a gene encoding a biotin carboxyl carrier protein, a subunit of biotin-dependent enzymes, from a genomic library of Streptococcus mutans strain UT-041. In colony lifts, the clone reacted positively to the streptavidin-containing detection system but could not be detected in Southern blot analysis. The amino acid sequence of the gene product, deduced from its nucleotide sequence, demonstrated all the features common to biotin carboxyl carrier proteins from other bacteria, indicating that the biotin carboxyl carrier protein in the clone had produced a "false-positive" (DNA probe-independent) reaction by binding to the streptovidin. To circumvent this problem with the detection system in gene probing in the future, we recommend that all positive clones be screened by direct incubation with streptavidin-alkaline phosphatase (SA-AP) in the absence of biotin-labeled probe DNA. Clones binding to SA-AP would be considered false positives.

Acetyl-CoA Carboxylase↗
PubMed1987

Recognition of translational termination signals.

Ribosomes can specifically shift at certain codons so that the mRNA is read in two different reading frames. To determine if frameshifting occurs at the level of termination, polymers of defined sequence containing AUG, a coding sequence and an in- or out-of-phase nonsense codon were used to bind a termination substrate or to program synthesis and release of dipeptides in a highly purified in vitro translation system. fMet-tRNA bound to ribosomes with AUGUAA, AUGUAAn, AUGUUU, AUGUUA or AUGUAn was not a substrate for release factor RF-1. In contrast, AUGU1UAA, AUGU3UAAn, AUGU4UAAn, AUGU5UAAn effected RF-1-dependent release of fMet from ribosomes. This suggests that nonsense codons can stimulate release whether they occur in- or out-of-phase. Addition of exogenous UAA and RF-1 stimulated release with all oligonucleotides tested. Propagation restricted the RF-1-dependent recognition of out-of-phase nonsense codons but did not restrict recognition of in-phase UAA in AUGU3UAAn. Release of dipeptides from ribosomes programmed with AUGU4UAAn occurred without EF-G and with a mutant lacking EF-G activity, suggesting that out-of-phase termination can occur prior to translocation outside the ribosomal A-site. We propose that the ribosome X RF complex is required to complete proteins, but is also able to frameshift at a nonsense codon resulting in occasional out-of-phase termination of protein synthesis.

Codon↗
PubMed1984

Effect of base sequence on in vitro protein-chain termination.

It has been proposed that the sequences surrounding nonsense codons determine the efficiency of protein-chain termination. To test this hypothesis, the termination factor, RF-1, was purified to near homogeneity and was used to examine the specificity of in vitro prokaryotic termination as a function of the nature and number of bases adjacent to UAA. Oligomers with different nucleotide sequences surrounding UAA were synthesized and their conformation was analyzed by NMR spectroscopy. The activity of these oligomers in RF-1-dependent termination was assayed by the release of analogues of peptides, N-acetyl or N-formyl-methionine, that were bound to ribosomes as N-acetyl or N-formyl-Met-tRNAfMet with either AUG or AUG covalently linked to another oligoribonucleotide. In the former case, a second oligomer was added to stimulate release. When added to the AUG-bound intermediate, UAAUAA was 5-fold less effective in stimulating release of N-acetyl-Met by RF-1 than were UAA, UAAN (where N is any base), UAAUGA, or UAAUAG. Oligomers AUGUAA, AUGUUAA, and AUG(U)mUAA18-25 (where m = 1-5) stimulated release by RF-1, whereas AUGCUA, AUGCUAA, and other control polymers were inactive. The data suggest that recognition of UAA depends, at least in part, on the nature of the bases surrounding UAA. A loosely stacked conformation of UAA in the short messengers favors termination, whereas nucleosides which encourage strong base stacking restrict release.

Base Sequence↗