Notes

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20-3.06; P = .006) and low baseline ferritin (HR, 0.96; 95% CI, 0.95-0.97; P less then .001) were associated with an increased risk of iron deficiency. Young age (HR, 0.90; 95% CI, 0.82-0.99; P = .028), baseline anemia (HR, 19.6; 95% CI, 7.85-48.9; P less then .001), and low baseline ferritin (HR, 0.96; 95% CI, 0.95-0.98; P less then .001) were associated with an increased risk of IDA. Procyanidin C1 Our results suggest that IDA is a delayed consequence of bariatric surgery and that preoperative assessment of patient risk may be possible.Complement C5 inhibitor eculizumab has a great impact on the treatment of patients with paroxysmal nocturnal hemoglobinuria (PNH). However, this treatment success has a major drawback a substantially increased susceptibility for life-threatening Neisseria meningitidis infections. Therefore, N meningitidis vaccination is strongly advised before initiating complement C5-blocking therapy. In this study, we show that the multicomponent N meningitidis serogroup B (4CMenB) vaccination of PNH patients treated with eculizumab results in a significant increase in anti-N meningitidis serogroup B (MenB) plasma immunoglobulin G (IgG) levels. Anti-MenB IgG was able to bind to the bacterial surface and initiate complement activation; however, inhibition of the membrane attack complex formation completely blocked whole blood-mediated killing of MenB. This would suggest that, despite 4CMenB vaccination, PNH patients taking C5 inhibitors are not sufficiently protected against MenB infection, which is in line with the fact that vaccinated PNH patients still experience meningococcal infections.To identify the factors influencing outcome in childhood mature B-cell non-Hodgkin lymphoma and acute leukemia (B-NHL/AL) with central nervous system (CNS) disease (CNS+), we analyzed patients less then 18 years with newly diagnosed B-NHL/AL registered in 3 Lymphomes Malins B studies in France between 1989 to 2011. CNS+ was diagnosed on fulfillment of ≥1 of the following criteria any L3 cerebrospinal fluid (CSF) blasts (CSF+), cranial nerve palsy, isolated intracerebral mass but also clinical spinal cord compression, and cranial or spinal parameningeal extension. Two hundred seventeen out of 1690 patients (12.8%) were CNS+. CNS+ was significantly associated with male gender, head/neck locations, Burkitt histology, high initial lactate dehydrogenase (LDH) level, and bone marrow involvement. CSF+ was the most frequent pattern of CNS+ (45%). For the 217 CNS+ patients, the 5-year event-free survival (EFS) and overall survival rates (95% confidence interval) were 81.5% (75.8% to 86.1%) and 83.9% (78.4% to 88.2%), respectively. In multivariate analysis, among CNS+ patients, low EFS was associated with CSF+, high initial LDH level, and poor response to cyclophosphamide, oncovin (vincristine), prednisone prephase. These findings have been considered for patient's stratification in the international randomized phase 3 trial Inter-B-NHL-ritux 2010 for children and adolescents with high-risk B-NHL/AL with CNS+ CSF+ patients only receiving intensified chemotherapy.
Parity is associated with decreased risk of invasive ovarian cancer; however, the relationship between incomplete pregnancies and invasive ovarian cancer risk is unclear. This relationship was examined using 15 case-control studies from the Ovarian Cancer Association Consortium (OCAC). Histotype-specific associations, which have not been examined previously with large sample sizes, were also evaluated.

A pooled analysis of 10,470 invasive epithelial ovarian cancer cases and 16,942 controls was conducted. Odds ratios and 95% confidence intervals for the association between incomplete pregnancies and invasive epithelial ovarian cancer were estimated using logistic regression. All models were conditioned on OCAC study, race/ethnicity, age, and education level, and adjusted for number of complete pregnancies, oral contraceptive use, and history of breastfeeding. The same approach was used for histotype-specific analyses.

Ever having an incomplete pregnancy was associated with a 16% reduction in ovarian cancer risk (OR = 0.84, 95% CI = 0.79 to 0.89). There was a trend of decreasing risk with increasing number of incomplete pregnancies (two-sided Ptrend <.001). An inverse association was observed for all major histotypes; it was strongest for clear cell ovarian cancer.

Incomplete pregnancies are associated with a reduced risk of invasive epithelial ovarian cancer. Pregnancy, including incomplete pregnancy, was associated with a greater reduction in risk of clear cell ovarian cancer, but the result was broadly consistent across histotypes. Future work should focus on understanding the mechanisms underlying this reduced risk.
Incomplete pregnancies are associated with a reduced risk of invasive epithelial ovarian cancer. Pregnancy, including incomplete pregnancy, was associated with a greater reduction in risk of clear cell ovarian cancer, but the result was broadly consistent across histotypes. Future work should focus on understanding the mechanisms underlying this reduced risk.
The true frequency of hospital outbreaks of invasive group B streptococcal (iGBS; Streptococcus agalactiae) disease in infants is unknown. We used whole genome sequencing (WGS) of iGBS isolates collected during a period of enhanced surveillance of infant iGBS disease in the UK and Ireland to determine the number of clustered cases.

Potentially linked iGBS cases from infants with early (<7 days of life) or late-onset (7-89 days) disease were identified from WGS data (HiSeq 2500 platform, Illumina) from clinical sterile site isolates collected between 04/2014 and 04/2015. We assessed time and place of cases to determine a single-nucleotide polymorphism (SNP) difference threshold for clustered cases. Case details were augmented through linkage to national hospital admission data and hospital record review by local microbiologists.

Analysis of sequences indicated a cut-off of ≤5 SNP differences to define iGBS clusters. Among 410 infant iGBS isolates, we identified 7 clusters (4 genetically-identical pairs with 0 SNP differences, one pair with 3 SNP differences, one cluster of 4 cases with ≤1 SNP differences) of which 4 clusters were uncovered for the first time.
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