Medicine (Baltimore)
January 2025
Rationale: The occurrence of refractory small cell lung cancer (rSCLC) with pancreatic metastasis is a relatively rare clinical condition, which is typically accompanied by a poor prognosis and rapid disease progression.
Patient Concerns: A 65-year-old male farmer from China was diagnosed with limited-stage small cell lung cancer (SCLC) 8 months ago. Following 6 cycles of EP chemotherapy, the patient's tumor response showed partial relief.
Large-scale Randomised Controlled Trials (RCTs) are widely regarded as "the gold standard" for testing the causal effects of school-based interventions. RCTs typically present the statistical significance of the average treatment effect (ATE), which captures the effect an intervention has had on average for a given population. However, key decisions in child health and education are often about individuals who may be very different from those averages.
View Article and Find Full Text PDFBackground: Pancreatic ductal adenocarcinoma remains one of the most lethal malignancies, with few treatment options. NAPOLI 3 aimed to compare the efficacy and safety of NALIRIFOX versus nab-paclitaxel and gemcitabine as first-line therapy for metastatic pancreatic ductal adenocarcinoma (mPDAC).
Methods: NAPOLI 3 was a randomised, open-label, phase 3 study conducted at 187 community and academic sites in 18 countries worldwide across Europe, North America, South America, Asia, and Australia.
Background And Objectives: To summarize intracluster correlation coefficient (ICC) estimates for pupil health outcomes from school-based cluster randomized trials (CRTs) across world regions and describe their relationship with study design characteristics and context.
Methods: School-based CRTs reporting ICCs for pupil health outcomes were identified through a literature search of MEDLINE (via Ovid). ICC estimates were summarized both overall and for different categories of study characteristics.
Background: The last 20 years have seen a marked increase in the use of cluster randomised trials (CRTs) in schools to evaluate interventions for improving pupil health outcomes. Schools have limited resources and participating in full-scale trials can be challenging and costly, given their main purpose is education. Feasibility studies can be used to identify challenges with implementing interventions and delivering trials.
View Article and Find Full Text PDFThis study examines how adolescent experience in Internet cafés (known as wangba in Chinese) relates to academic attainment in urban, rural, and Tibetan schools of China. By documenting the frustrations teenagers express in their negotiations with adults surrounding access to and use of wangba and, by comparing self-reported academic standing of students from similar backgrounds with how they differ in their experience in wangba, the study finds that visiting wangba is not strongly correlated with the probability of students reporting either high- or under-achievement. While students without any experience in wangba are substantially less likely to report academic underperformance, the association disappears after matching when the logit regression model is less model-dependent and vulnerable to the problems associated with missing data.
View Article and Find Full Text PDFBackground: Cluster randomised trials (CRTs) are increasingly used to evaluate non-pharmacological interventions for improving child health. Although methodological challenges of CRTs are well documented, the characteristics of school-based CRTs with pupil health outcomes have not been systematically described. Our objective was to describe methodological characteristics of these studies in the United Kingdom (UK).
View Article and Find Full Text PDFIntroduction: Cluster randomised trials (CRTs) are studies in which groups (clusters) of participants rather than the individuals themselves are randomised to trial arms. CRTs are becoming increasingly relevant for evaluating interventions delivered in school settings for improving the health of children. Schools are a convenient setting for health interventions targeted at children and the CRT design respects the clustered structure in schools (ie, pupils within classrooms/teachers within schools).
View Article and Find Full Text PDFAims: Glioblastoma is one of the most invasive tumors of the central nervous system, and has a high degree of malignancy and poor prognosis. Harmine, an active ingredient extracted from perennial herbs, has been reported to have obvious antitumor effects on various tumors. However, the effects of harmine on glioblastoma growth remain unknown.
View Article and Find Full Text PDFBackground: Venous thromboembolism (VTE) is a serious complication in medically ill inpatients. Enoxaparin or unfractionated heparin (UFH) thromboprophylaxis has been shown to reduce VTE in clinical trials; however, comparative effectiveness and differences in hospital costs are unknown in US hospital practice.
Objective: This study compared clinical and economic outcomes between enoxaparin and UFH thromboprophylaxis in medically ill inpatients.
Background: Enoxaparin and unfractionated heparin (UFH) are guideline-recommended anticoagulants for patients with acute coronary syndrome (ACS), including unstable angina (UA) and myocardial infarction with (STEMI) or without ST-segment elevation (NSTEMI). Prior efficacy and safety evidence are mainly from clinical trials. Economic data are insufficient.
View Article and Find Full Text PDFObjective: Concerns have been raised about severe acute localized reactions (SALR) following intra-articular (IA) hyaluronic acid (HA) injections for knee osteoarthritis (OA). We compared surrogate SALR measures between hylan G-F 20 and non-hylan G-F 20 HA patients and evaluated corresponding SALR risk factors for hylan G-F 20 patients.
Design: Knee OA patients were identified from the Optum Clinformatics dataset (January 2006 to June 2016), stratified into hylan G-F 20 and non-hylan G-F 20 HA users.
Excessive accumulation of amyloid-β (Aβ) caused by cleavage of amyloid precursor protein (APP) is thought to be the primary cause of Alzheimer's disease (AD). Two key enzymes ADAM10 and BACE1 are involved in the initial cleavage of APP, resulting in the onset of two pathways, the amyloidogenic pathway and the non-amyloidogenic pathway, respectively. Altering APP metabolism towards the non-amyloidogenic pathway is thought to reduce Aβ production.
View Article and Find Full Text PDFIntergeneric crop plant hybrid lines with small-segment chromosome translocations are very useful in plant genetic research and breeding. In this study, to create small-segment chromosome translocations with beneficial agronomic characters, the progeny of wheat-rye substitution lines 5R/5A and 6R/6A were selected from generations F to F for rye-specific characteristics. A PCR primer and specific simple sequence repeat marker for rye were used in F populations to detect rye chromatin and to amplify a specific chromosome band in six translocation lines (06-6-5, 06-6-6, 06-6-9, 6-26-1, 7-23, and 7-33).
View Article and Find Full Text PDFEstrogenic compounds have been shown to have great potential for the treatment of Alzheimer's disease as demonstrated by its ability to antagonize amyloid beta peptide (Aβ) induced toxicity, the hallmark of Alzheimer's disease. Key mechanisms include the involvements of both the antioxidant and the anti-apoptotic pathways. However, side effects of estrogens, such as the increased incidence of breast cancer, are of concern for further clinical translation.
View Article and Find Full Text PDFThe high molecular weight glutenin subunits (HMW-GS) 7+8 were introduced into the Long 97-586 (1, 7, 2+12) wheat variety (Triticum aestivum) by 5 consecutive backcrosses with biochemical marker-assisted selection. Nearly isogenic lines (NILs) of HMW-GS 7 and 7+8 were obtained, and the NILs were planted in the experimental field at the Crop Breeding Institute of Heilongjiang Academy of Agricultural Science in 2004-2006. The field experiments were designed using the two-column contrast arrangement method with six replicates in 2004-2005 and four replicates in 2006.
View Article and Find Full Text PDFPostmenopausal estrogen depletion is a characterized risk factor for Alzheimer disease (AD), a human disorder linked to high levels of beta-amyloid peptide (Abeta) in brain tissue. Previous studies suggest that estrogen negatively regulates the level of Abeta in the brain, but the molecular mechanism is unknown. Here, we provide evidence that estrogen promotes Abeta degradation mainly through a principal Abeta degrading enzyme, neprilysin, in neuroblastoma SH-SY5Y cells.
View Article and Find Full Text PDFJ Mol Neurosci
September 2009
Our previous data showed that neprilysin (NEP), a zinc metalloendopeptidase, which can degrade amyloid-beta peptide (Abeta) whose central nerve system accumulation is the primary cause of Alzheimer's disease (AD), responds to estrogen in the brain. Recently, it has been shown that the transcription of the neprilysin gene can be up regulated by progesterone, androgens, and glucocorticoids through two androgen response elements within the NEP gene--an androgen response region (ARR) and an androgen response element (ARE). Through a yeast report gene system, we now find that the ARR but not the ARE respond to estrogen.
View Article and Find Full Text PDFSince the estrogen receptor alpha (ERalpha) and beta (ERbeta) are thought to mediate different biological effects, there is intense interest in designing or screening subtype-selective ER ligands. Here, we constructed a biosensor identified as bipartite recombinant yeast system (BRYS) to screen and evaluate subtype-selective ER ligands. Uniform design and immunoblotting was used to determine an optimal dose of copper which control the expression of ERs through a copper inducible metallothionine promoter (CUP1).
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