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No relevant studies have yet been conducted to explore which measurement can best predict the survival time of patients with cancer cachexia. This study aimed to identify an anthropometric measurement that could predict the 1-year survival of patients with cancer cachexia. We conducted a nested case–control study using data from a multicentre clinical investigation of cancer from 2013 to 2020. Cachexia was defined using the Fearon criteria. A total of 262 patients who survived less than 1 year and 262 patients who survived more than 1 year were included in this study. Six candidate variables were selected based on clinical experience and previous studies. Five variables, BMI, mid-arm circumference, mid-arm muscle circumference, calf circumference and triceps skin fold (TSF), were selected for inclusion in the multivariable model. In the conditional logistic regression analysis, TSF (P = 0·014) was identified as a significant independent protective factor. A similar result was observed in all patients with cancer cachexia (n 3084). In addition, a significantly stronger positive association between TSF and the 1-year survival of patients with cancer cachexia was observed in participants aged > 65 years (OR: 0·94; 95 % CI 0·89, 0·99) than in those aged ≤ 65 years (OR: 0·96; 95 % CI 0·93, 0·99; Pinteraction = 0·013) and in participants with no chronic disease (OR: 0·92; 95 % CI 0·87, 0·97) than in those with chronic disease (OR: 0·97; 95 % CI 0·94, 1·00; Pinteraction = 0·049). According to this study, TSF might be a good anthropometric measurement for predicting 1-year survival in patients with cancer cachexia.
The oxidation behavior of two percentages of TiB + TiC reinforced Ti–6Al–4V composites derived from Ti–B4C–C and Ti–TiB2–TiC systems was investigated at 873–1073 K for 320 h in air. The oxidation weight gain curves of the (TiB + TiC)/Ti–6Al–4V composites at 973 K basically obey parabolic law, while those at 873 and 1073 K mainly follow linear law and parabolic-linear law, respectively. The oxide layers of the composites are predominately found to be rutile TiO2, Al2O3, and the mixture of V2O3 and V2O5. The oxidation layers turn thinner with increasing the nominal volume fraction of reinforcements in the (TiB + TiC)/Ti–6Al–4V composites. Moreover, according to the calculation results of reaction index (n) and effective activation energy (Qeff) and the analyses of cross-sections of the oxidation layers, the oxidation resistance ability of the composites from Ti–TiB2–TiC system is higher than that from Ti–B4C–C system while employing the same sintering temperature and nominal volume fraction of reinforcement.
A pair of mutant mice with a first sparse coat appeared spontaneously in the production stock of
BALB/c mice with a normal coat. After being sib-mated, they produced three phenotypes in their
progeny: mice with normal hair, mice with a first sparse coat and then a fuzzy coat, and
uncovered mice. Genetic studies revealed the mutants had inherited an autosomal monogene that
was semi-dominant. By using 11 biochemical loci – Idh, Car2,
Mup1, Pgm1, Hbb, Es1, Es10, Gdc,
Ce2, Mod1 and Es3 – as genetic markers, two-point linkage tests were made. The results showed
the gene was assigned to chromosome 11. The result of a three-point test with Es3 and D11Mit8
(microsatellite DNA) as markers showed that the mutation was linked to Es3 with the
recombination fraction 7·89±2·19%, and linked to D11Mit8 with the recombination fraction
26·30±3·57%. The recombination fraction between Es3 and D11Mit8 was 32·90±3·81%. It is
suggested that the mutation is a new genetic locus that affected the skin and hair structure of the
mouse. The mutation was named uncovered, with the symbol Uncv. Further studies showed the
mutation affected not only the histology of skin and hair but also the growth and reproductive
performance of the mice. The molecular characterization of the Uncv locus needs to be further
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