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981.
Yvonne Hastings Melinda White Jeanine Young 《Journal of pediatric oncology nursing》2006,23(2):103-110
This retrospective study evaluated the efficacy of enteral nutrition for pediatric patients undergoing the challenging treatment of allogeneic bone marrow transplantation. During the period from January 1999 to May 2000, 15 patients were transplant recipients. On admission to the hospital, 87% of patients were above the 50th percentile for weight for age. Nasogastric tubes were inserted while platelet counts remained greater than 50 x 10(9) mL/L. A specialized elemental formula for pediatric patients was commenced. These feeds were administered continuously and were titrated until caloric requirement or tolerance level had been achieved. During hospitalization for bone marrow transplantation, enteral nutrition was the major form of nutritional support for all patients. Enteral feeds continued even during maximal gut toxicity and were supported with antiemetics and analgesia. There were insignificant weight fluctuations during hospitalization, with 80% of children above the 50th percentile weight for age being discharged. Enteral nutrition via a nasogastric tube was effective in the provision of nutrition during bone marrow transplantation and continues to have an important role in this unit. 相似文献
982.
983.
This study aimed to investigate changes in auditory and visual cortical activity over the first year following cochlear implantation using (18)F-fluorodeoxyglucose positron emission tomography. Subjects underwent scanning prior to the initial implant activation (control), after one to two months of implant use (early activation) and after one year of implant use (late activation). All subjects had activation of the auditory cortices. Group analysis using Statistical Parametric Mapping package SPM99 showed these became more focused over the first year of implant use. There was no evidence of left hemispheric dominance at any stage post implantation.Visual cortical activations were highly variable between patients and did not increase significantly between early and late activations. Taken together, our results lead us to suggest that the neural processes that occur during the first year of auditory rehabilitation following cochlear implantation vary between individuals to a greater extent than previously reported. 相似文献
984.
A224 Lenalidomide,Bortezomib, and Dexamethasone Has Notable Activity in High-Risk First-Line Myeloma
985.
Sha Zhao James V. Moore Michael L. Waller Alan T. McGown John A. Hadfield George R Pettit David L. Hastings 《European journal of nuclear medicine and molecular imaging》1999,26(3):231-238
. There are major potential advantages in non-invasive measurement of preclinical tumour biology and therapeutic response
in clinically relevant, internal body sites, notably the ability to follow outcome in individual animals rather than averaging
results from groups. We have exploited positron emission tomography (PET) to determine the feasibility of detecting liver
metastases in B6D2F1 mice using fluorine-18 fluorodeoxyglucose ([18F]FDG) both before and after treatment by the novel cytotoxic agent, combretastatin A-4. The normal distribution of [18F]FDG in the absence of disease was characterised, with the clear delineation of the brain, the heart and the urinary bladder
in all studies. In untreated mice with liver metastases, a strong correlation (r
2 = 0.98) was found between the quantitative estimates of [18F]FDG uptake obtained by analysis of PET images, and those obtained from ex vivo assay of liver plus metastases excised immediately
after imaging. In this first series, the effective limit of resolution was in livers containing a number of small metastases
(range 8–14) with a single volume equivalent of approximately 200 mm3. PET image analysis was concordant with histological measurements in showing that single intraperitoneal doses of combretastatin
A-4 resulted in an average 30% volume destruction of metastatic mass by 24 h following administration.
Received 1 August and in revised form 26 October 1998 相似文献
986.
Armstrong DK; McKenna KE; Purkis PE; Green KJ; Eady RA; Leigh IM; Hughes AE 《Human molecular genetics》1999,8(1):143-148
Desmosomes are highly organized intercellular adhesive junctions that are
particularly prominent in epidermis and other tissues experiencing
mechanical stress. Desmoplakin, a constitutive component of the desmosomal
plaque, is the most abundant protein present in such junctions and plays a
critical role in linking the intermediate filament network to the plasma
membrane in these tissues. Here we report the first mutation in the gene
encoding desmoplakin. The identified mutation, resulting in a null allele
and haploinsufficiency, was observed in genomic DNA from a kindred with the
dominantly inherited skin disorder, striate palmoplantar keratoderma.
Affected individuals had a linear pattern of skin thickening on the fingers
and palms and circumscribed areas of skin thickening on the soles. Affected
skin demonstrated loosening of intercellular connections, disruption of
desmosome-keratin intermediate filament interactions and a proportion of
rudimentary desmosomal structures. The disorder mapped to chromosome 6p21
with a maximum lod score of 10.67. The mutation was a heterozygous C-->T
transition in exon 4 of the desmoplakin gene and predicted a premature
termination codon in the N-terminal region of the peptide. This is the
first reported mutation of desmo-plakin and also the first inherited skin
disorder in which haploinsufficiency of a structural component has been
implicated. It identifies dosage of desmoplakin as critical in maintaining
epidermal integrity.
相似文献
987.
A case of subcutaneous phenytoin extravasation in the hand is reported. Treatment consisting of compressive dressing, elevation, and splinting was successful in restoring hand function. 相似文献
988.
A L Brown M J Francis G Z Hastings N R Parry P V Barnett D J Rowlands B E Clarke 《Vaccine》1991,9(8):595-601
The presentation of heterologous amino acid sequences on the surface of hepatitis B core antigen (HBcAg) particles has been studied using a defined linear neutralization site from human rhinovirus (HRV). Previous work has shown that fusion particles, in which the HRV peptide sequence is linked to the amino terminus of the HBcAg protein, induce excellent immune responses in experimental animals. Using predictive models of HBcAg particulate structure and the approximate location of the major immunogenic regions we have designed and constructed bacterial expression vectors which direct synthesis of chimeric particles in which heterologous sequences are presented within an immunodominant area on the particle. Immunological responses to the heterologous peptide sequence are improved by at least tenfold when compared with amino terminal fusions of the same peptide sequence to HBcAg. Moreover, the restriction placed on the heterologous peptide by its linkage at both ends within the HBcAg protein results in a more constrained structure. In the case of the rhinovirus peptide sequence this results in an antigenic conformation more closely resembling that on the native virus particle. Such a system lends itself well as a general approach to the induction of high titre antibodies against defined epitopes. 相似文献
989.
Gillian Z. Hastings Michael J. Francis D. J. Rowlands Benjamin M. Chain 《European journal of immunology》1993,23(6):1340-1345
Human rhinovirus serotypes (HRV) fall into two distinct groups, major and minor, by virtue of their cell receptor-binding ability. In this study minor receptor-binding group viruses are demonstrated to bind directly to cells of the murine immune system, including lymphoid dendritic cells which act as antigen-presenting cells, although they do not produce a productive infection in murine cells. This binding is specific and can be blocked by other serotypes of minor-group HRV Pre-treatment of HRV 1A, a minor-group virus, with HRV 1A-specific antibodies inhibited the cellular proliferation of murine virus primed T helper cells, whereas antibody treatment of HRV 15, a non-binding major serotype, gave no inhibition. The cell binding ability of minor-group HRV played a role in the overall immunogenicity of this virus group, which was shown to be enhanced compared to the immunogenicity of major-group viruses in mice. 相似文献
990.
JW Lim H Rehman S Gaba H Sargeant IM Stevenson DE Boddie 《Annals of the Royal College of Surgeons of England》2021,103(3):167
IntroductionWe describe a new service model, the Orthopaedic Assessment Unit (OAU), designed to provide care for trauma patients during the COVID-19 pandemic. Patients without COVID-19 symptoms and isolated musculoskeletal injuries were redirected to the OAU.MethodsWe prospectively reviewed patients throughput during the peak of the global pandemic (7 May 2020 to 7 June 2020) and compared with our historic service provision (7 May 2019 to 7 June 2019). The Mann–Whitney and Fisher Exact tests were used to test the statistical significance of data.ResultsA total of 1,147 patients were seen, with peak attendances between 11am and 2pm; 96% of all referrals were seen within 4h. The majority of patients were seen by orthopaedic registrars (52%) and nurse practitioners (44%). The majority of patients suffered from sprains and strains (39%), followed by fractures (22%) and wounds (20%); 73% of patients were discharged on the same day, 15% given follow up, 8% underwent surgery and 3% were admitted but did not undergo surgery. Our volume of trauma admissions and theatre cases decreased by 22% and 17%, respectively (p=0.058; 0.139). There was a significant reduction of virtual fracture clinic referrals after reconfiguration of services (p<0.001).ConclusionsRapid implementation of a specialist OAU during a pandemic can provide early definitive trauma care while exceeding national waiting time standards. The fall in trauma attendances was lower than anticipated. The retention of orthopaedic staff in the department to staff the unit and maintain a high standard of care is imperative. 相似文献