The Impact of a Healthy Weight Intervention Embedded in a Home-Visiting Program on Children's Weight and Mothers’ Feeding Practices

Objective

To examine whether a healthy weight intervention embedded in the Parents as Teachers (PAT) home visiting program, which was previously found to improve mothers’ body mass index (BMI) and obesity-related behaviors, changed the BMI of preschool children or maternal feeding practices.

Quantitative immunoblotting assay of blood coagulation factor XII

The immunoblotting technique was applied to the study of Factor XII (F.XII) in plasma. Sodium dodecyl sulfate polyacrylamide gel electrophoresis (SDS-PAGE) of whole plasma followed by electroblotting of the electropherograms to nitrocellulose (NC) membranes and immunologic detection by a double antibody technique was used. ¹²⁵-F.XII was transferred to the NC membrane in amounts proportional to the amount applied to the gel provided that a constant amount of carrier protein was present. Based on this, a quantitative assay was developed using either normal plasma or F.XII dilutions in F.XII-deficient plasma as standards. The measurement of F.XII antigen by immunoblotting was reproducible and gave values similar to those obtained by radial immunodiffusion. Two normal plasma pools contained 26 and 29 μ/ml of F.XII according to the immunoblotting assay. Compared to other immunoassays, immunoblotting has the advantage of directly estimating the apparent molecular weight (MW) of the protein of interest. Thus, we could confirm the normal apparent MW (80,000) of a F.XII-like molecule previously isolated from a cross reacting material (CRM)-positive F.XII-deficient plasma. None of eight CRM-negative F.XII-deficient plasmas showed an 80,000 MW immunoreactive molecule. However, five of these eight plasmas had a faint autoradiographic band at 115,000 MW that was similarly seen in only three out of 43 individual normal plasmas. The nature of this 115,000 MW band remains to be defined.     

Lymph Node Dissection Impact on Staging and Survival of Extrahepatic Cholangiocarcinomas,Based on U.S. Population Data

Cholangiocarcinomas (CC) frequently demonstrate lymphatic spread. We investigated lymph node (LN) counts after resection of extrahepatic CC and survival based on the SEER 1973–2004 database. Out of 20,068 CC patients, 1,518 individuals were selected based on M0 stage and at least one LN examined. Primary cancer sites included gallbladder (29%), extrahepatic bile ducts (26%), and intrapancreatic/ampullary bile ducts (45%); 42% of patients were LN-positive. The median number of LNs examined was four (range 1–39). Median survival was 37 months for LN-negative and 16 months for LN-positive cancers. Multivariate prognostic variables were the number of positive LNs, primary site, age (all at p < 0.0001), gender (p = 0.002), size (p = 0.005), T category (p = 0.009), and total LN count (or number of negative LNs obtained, p = 0.01). The impact of total LN counts was seen in LN-negative (median survival, 1 vs 10 or more LNs examined: 27 vs 51 months, p = 0.002) and LN-positive disease (10 vs 22 months, p < 0.0001). Survival prediction of extrahepatic CCs is strongly influenced by total LN counts and numbers of negative LNs obtained. Although the resulting incremental benefit is small, dissection and examination of 10 or more LNs should be considered for curative intent resections.     

Why do Italian people rate their health worse than French people do? An exploration of cross-country differentials of self-rated health

The prevalence of bad self-rated health (SRH) varies considerably across countries. Here we present the results of a cross-national comparative study based on the data of National Health Surveys conducted in France and Italy. According to these data, 11% of the Italian and 6% of the French adult population aged between 45 and 74 rate their health as bad or very bad. This gap may result from differences in population structure regarding the individual characteristics (sociodemographic characteristics, diseases and disabilities, lifestyle, and others) that impact on SRH i.e., a structural effect. It may also be that the link between these characteristics and SRH is “country-specific” i.e., a contextual effect. We use logistic regression models to assess the contribution of both explanations. We find that the structural effect plays a prominent role in the higher prevalence of bad SRH in Italy compared to France.     

Increased procollagen III production in patients with kidney disease

Measurements of elevated procollagen III peptide (PIIIP) levels are used to monitor fibrosing activity in hepatic and various other diseases. Elevated PIIIP levels have also been reported in renal failure patients without such diseases. Therefore, the serum levels and renal clearance of PIIIP were investigated in 17 healthy volunteers and 100 patients with different types of acute (n = 15) and chronic (n = 85) kidney disease. PIIIP was measured by conventional and Fab radioimmunoassays. Median PIIIP levels in serum (18, range 5-55 ng/ml) and urine (34, range 1-110 micrograms/day) were significantly higher in kidney patients than serum (9, range 6-14 ng/ml) and urine levels (17, range 6-24 micrograms/day) in normal volunteers (p = 0.01). No significant differences (Kruskal-Wallis H test) were found, however, within the different kidney disease groups (acute, chronic/glomerulonephritis, interstitial nephritis). Median renal clearance of PIIIP-related peptides in kidney patients (1.5, range 0.5-2.4 ml/min) did not differ significantly (Wilcoxon U test) from that in normal volunteers (1.3, range 0.4-2.2 ml/min). These findings indicate that PIIIP elimination does not depend on renal function. PIIIP-related peptides in serum and urine, however, increase with renal failure irrespective of the activity or type of renal disease. This can be explained most probably by enhanced turnover of collagen type III by the affected kidney itself.