The degree of social difficulties experienced by cancer patients and their spouses

Abstract Background Although recent studies have increasingly reported physical and psychological problems associated with cancer and its treatment, social problems of cancer patients and their families have not been sufficiently elucidated. The present study aimed to identify cancer-associated social problems from the perspectives of both patients and their spouses and to compare and analyze differences in their problems. Methods This was a cross-sectional internet-based study. Subjects were 259 patients who developed cancer within the previous five years and 259 patients’ spouses; the data were derived from two surveys in 2010 (patients) and 2016 (spouses) whose participants were not part of the same dyad but matched by propensity scores, estimated for age, sex, and the presence or absence of recurrence. We investigated the social difficulties of cancer patients and patients’ spouses. Regarding social difficulties experienced by cancer patients and spouses, the 60 patient survey items were categorized into 14 labels by the Jiro Kawakita (KJ) method, which is a qualitative synthesis method developed by Kawakita to classify categorical data. Results Although patients had higher scores on most subcategories, young spouses aged 39 or younger and female spouses had difficulty scores as high as the corresponding patients on many subcategories. Conclusion Health care providers should show sufficient concern for both patients and their spouses, particularly young and female spouses

Glibenclamide inhibits NLRP3 inflammasome-mediated IL-1β secretion in human trophoblasts

Infection-associated pregnancy complications cause premature delivery. Caspase-1 is involved in the maturation of interleukin (IL)-1β, which is activated by the NLRP3 inflammasome. To characterize the significance of the NLRP3 inflammasome pathway in the placenta, the effects of activators and inhibitors on NLRP3-related molecules were examined using isolated primary trophoblasts. Caspase-1 and IL-1β mRNA expression was markedly increased in response to lipopolysaccharide (LPS), a toll-like receptor (TLR)4 ligand. Treatment with the potassium ionophore nigericin significantly increased the level of activated caspase-1. Treatment with either LPS or nigericin stimulated IL-1β secretion, whereas pretreatment with the ATP-sensitive K+ channel inhibitor glibenclamide, the Rho-associated coiled-coil kinase inhibitor Y-27632, or a caspase-1 inhibitor significantly decreased nigericin-induced IL-1β secretion. In addition, dibutyryl-cAMP, which induces trophoblast differentiation, decreased expression of NLRP3, caspase-1, and IL-1β. These findings suggest that trophoblasts can secrete IL-1β through the NLRP3/caspase-1 pathway, which is suppressed by glibenclamide, and that the TLR4-mediated NLRP3 inflammasome pathway is more likely to be stimulated in undifferentiated than differentiated trophoblasts. Our data support the hypothesis that inhibition of the NLRP3 inflammasome can suppress placental inflammation-associated disorders. Keywords: Inflammasome, TLR4, NLRP3, Caspase-1, Trophoblas

Genetic Control of Isozymes in Lilium longiflorum Thunb

Inheritance and linkage relationships of polymorphic isozymes in Lilium longiflorum were demonstrated. Eleven enzyme systems were stably resolved by starch gel electrophoresis. Five of them exhibited polymorphisms, and eight loci with 20 alleles were determined by segregation patterns of offspring obtained from six artificial crosses with horticultural cultivars and wild strains. Contingency chi-square analyses of independent assortment for 64 pairs of loci indicated two linked pairs, Aat-2/6Pgd-2 （recombination fraction, R=0.34± 0.07） and Fest-2/6Pgd-1 （R=0.29±0.08）. Resolved enzyme systems and allozymes could be very efficient for estimating genetic diversity among natural populations in L. longiflorum