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4 result(s) for "Richel, Peter L"
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Happy & healthy : a wellness journal of baby's first year
\"A guide for parents to the first year of doctor's visits, illnesses, and vaccinations The first year with a baby is chock full of wellness visits. What can parents expect at each one? What will the pediatrician be looking for during examinations? What should parents ask? What information should they share about their baby's feeding schedule, sleep habits, and so on? Dr. Pete demystifies these well visits and prepares parents for each one by covering the major growth & development milestones, examination details, typical vaccinations, and issues that may crop up at different ages and stages. Happy and Healthy also includes information about common newborn infections and viruses, the signs and symptoms of minor versus major illnesses, what to expect during a visit to the emergency room-including common tests and procedures-and how to prepare for a hospital stay. Each well visit chapter includes a write-in space for parents to record changes in their baby's height and weight, as well as notes from the visit. The logs at the end of the book enable parents to keep a handy record of such information as immunizations, test records, allergies and sensitivities, major illnesses, and important contact information\"-- Provided by publisher.
Axitinib plus gemcitabine versus placebo plus gemcitabine in patients with advanced pancreatic adenocarcinoma: a double-blind randomised phase 3 study
Axitinib is a potent, selective inhibitor of vascular endothelial growth factor (VEGF) receptors 1, 2, and 3. A randomised phase 2 trial of gemcitabine with or without axitinib in advanced pancreatic cancer suggested increased overall survival in axitinib-treated patients. On the basis of these results, we aimed to assess the effect of treatment with gemcitabine plus axitinib on overall survival in a phase 3 trial. In this double-blind, placebo-controlled, phase 3 study, eligible patients had metastatic or locally advanced pancreatic adenocarcinoma, no uncontrolled hypertension or venous thrombosis, and Eastern Cooperative Oncology Group performance status 0 or 1. Patients, stratified by disease extent (metastatic vs locally advanced), were randomly assigned (1:1) to receive gemcitabine 1000 mg/m 2 intravenously on days 1, 8, and 15 every 28 days plus either axitinib or placebo. Axitinib or placebo were administered orally with food at a starting dose of 5 mg twice a day, which could be dose-titrated up to 10 mg twice daily if well tolerated. A centralised randomisation procedure was used to assign patients to each treatment group, with randomised permuted blocks within strata. Patients, investigators, and the trial sponsor were masked to treatment assignments. The primary endpoint was overall survival. All efficacy analyses were done in all patients assigned to treatment groups for whom data were available; safety and treatment administration and compliance assessments were based on treatment received. This study is registered at ClinicalTrials.gov, number NCT00471146. Between July 27, 2007, and Oct 31, 2008, 632 patients were enrolled and assigned to treatment groups (316 axitinib, 316 placebo). At an interim analysis in January, 2009, the independent data monitoring committee concluded that the futility boundary had been crossed. Median overall survival was 8·5 months (95% CI 6·9–9·5) for gemcitabine plus axitinib (n=314, data missing for two patients) and 8·3 months (6·9–10·3) for gemcitabine plus placebo (n=316; hazard ratio 1·014, 95% CI 0·786–1·309; one-sided p=0·5436). The most common grade 3 or higher adverse events for gemcitabine plus axitinib and gemcitabine plus placebo were hypertension (20 [7%] and 5 [2%] events, respectively), abdominal pain (20 [7%] and 17 [6%]), fatigue (27 [9%] and 21 [7%]), and anorexia (19 [6%] and 11 [4%]). The addition of axitinib to gemcitabine does not improve overall survival in advanced pancreatic cancer. These results add to increasing evidence that targeting of VEGF signalling is an ineffective strategy in this disease. Pfizer.
T-Cell Activation Independently Associates With Immune Senescence in HIV-Infected Recipients of Long-term Antiretroviral Treatment
Background. Aging-associated noncommunicable comorbidities are more prevalent among human immunodeficiency virus type 1 (HIV)-infected individuals than among HIV-uninfected individuals. Residual HIV-related chronic immune activation and senescence may increase the risk of developing comorbidities. Methods. Immune phenotyping, thymic output, and telomere length were assessed in 94 HIV-infected individuals who were aged >45 years and receiving antiretroviral therapy (ART; cases) and 95 age-matched uninfected controls. Results. Cases had lower CD4⁺ T-cell counts, higher CD8⁺ T-cell counts, and increased levels of immune activation (ie, increased soluble CD 14 [sCD14] level and increased percentages of CD38⁺ HLA-DR⁺ cells among both CD4⁺ and CD8⁺ T cells), regulatory T cells, and percentage of programmed cell death 1 (PD-l)-expressing cells among CD4⁺ T cells. Immune senescence levels (ie, percentages of CD27⁻ CD28⁻ cells or CD57⁺ cells) were comparable between cases and controls. Peripheral blood mononuclear cells from cases had shorter telomeres but increased single-joint T-cell receptor excision circle content and CD31⁺ naive CD4⁺ T cells. Although cytomegalovirus (CMV) antibody titers were higher in cases, CMV-specific T-cell responses were comparable between cases and controls. T-cell senescence in cases was independently associated with T-cell activation but not with CMV-specific immune responses. Conclusions. Despite long-term receipt of ART, HIV-infected adults had higher levels of immune activation, regulatory T cells, and PD-1-expressing CD4⁺ cells and shorter telomeres. The increased soluble CD14 levels and percentage of CD38⁺ HLA-DR⁺ cells among CD4⁺ T cells correlated with shorter telomeres and increased regulatory T-cell levels. This suggests that HIV influences immune function irreversibly, with several pathways that are persistently abnormal during effective ART. Therapies aimed at improving immune health during ART are needed.
Cross-sectional Comparison of the Prevalence of Age-Associated Comorbidities and Their Risk Factors Between HIV-Infected and Uninfected Individuals: The AGEhIV Cohort Study
Background. Human immunodeficiency virus (HIV)-infected individuals may be at increased risk of age-associated noncommunicable comorbidities (AANCCs). Methods. Cross-sectional analyses of AANCC prevalence (including cardiovascular, metabolic, pulmonary, renal, bone, and malignant disease) and risk factors in a prospective cohort study of HIV type 1–infected individuals and HIV-uninfected controls, who were aged ≥45 years and comparable regarding most lifestyle and demographic factors. Results. HIV-infected participants (n = 540) had a significantly higher mean number of AANCCs than controls (n = 524) (1.3 [SD, 1.14] vs 1.0 [SD, 0.95]; P < .001), with significantly more HIV-infected participants having ≥1 AANCC (69.4% vs 61.8%; P = .009). Hypertension, myocardial infarction, peripheral arterial disease, and impaired renal function were significantly more prevalent among HIV-infected participants. Risk of AANCC by ordinal logistic regression was independently associated with age, smoking, positive family history for cardiovascular/metabolic disease, and higher waist-to-hip ratio, but also with HIV infection (odds ratio, 1.58 [95% confidence interval, 1.23–2.03]; P < .001). In those with HIV, longer exposure to CD4 counts <200 cells/μL, and, to a lesser extent, higher levels of high-sensitivity C-reactive protein and soluble CD14, and longer prior use of high-dose ritonavir (≥400 mg/24 hours) were each also associated with a higher risk of AANCCs. Conclusions. All AANCCs were numerically more prevalent, with peripheral arterial, cardiovascular disease, and impaired renal function significantly so, among HIV-infected participants compared with HIV-uninfected controls. Besides recognized cardiovascular risk factors, HIV infection and longer time spent with severe immunodeficiency increased the risk of a higher composite AANCC burden. There was a less pronounced contribution from residual inflammation, immune activation, and prior high-dose ritonavir use.