An efficient method to optimize digital micromirror device (DMD) lithography was proposed using a hybrid genetic algorithm integrated with an improved exposure model. The improved exposure model significantly refines traditional approaches by incorporating advanced parameters not previously considered, including the cross-transfer coefficient, detailed light source functions, and impulse response functions. These enhancements provide a comprehensive assessment of the entire optical imaging system's impact on lithography quality and more accurately simulate the interactions of light with the photoresist.
View Article and Find Full Text PDFLong-term survival varies among hormone receptor-positive (HR+) and human epidermal growth factor receptor 2-negative (HER2-) breast cancer patients and is seriously impaired by metastasis. Chromosomal instability (CIN) was one of the key drivers of breast cancer metastasis. Here we evaluate CIN and 10-year invasive disease-free survival (iDFS) and overall survival (OS) in HR+/HER2-- breast cancer.
View Article and Find Full Text PDFLead (Pb) is a highly toxic metal with no physiological function in humans, accumulates in the body through food intake, and causes gut microbiome disorders and other hazards. In the present study, we examined the efficacy of a combination of chondroitin sulfate and CCFM8661 (CCFM8661 + CS) on tissue Pb accumulation and pathological damage to the liver and kidneys, gut microbiota, and fecal metabolites in Pb-exposed mice. Oral administration of CCFM8661 + CS to Pb-exposed mice reduced Pb accumulation in the liver, kidney, and bone tissues (from 3.
View Article and Find Full Text PDFPurpose: Our study aimed to develop and validate a homologous recombination deficiency (HRD) scoring algorithm in the Chinese breast cancer population.
Methods And Materials: Ninety-six in-house breast cancer (BC) samples and 6 HRD-positive standard cells were analyzed by whole-genome sequencing (WGS). Besides, 122 BCs from the TCGA database were down-sampled to ~ 1X WGS.
Due to digital micromirrors device (DMD) digital lithography limited by non-integer pixel errors, the edge smoothness of the exposed image is low and the sawtooth defects are obvious. To improve the image edge smoothness, an optimized pixel overlay method was proposed, which called the DMD digital lithography based on dynamic blur effect matching pixel overlay technology. The core of this method is that motion blur effect is cleverly introduced in the process of pixel overlap to carry out the lithography optimization experiment.
View Article and Find Full Text PDFAging is characterized by a decline in biological functions, leading to various health issues. There is significant interest in mitigating age and age-related health issues. Gut microbiota has emerged as a crucial target for combating aging and influencing host health.
View Article and Find Full Text PDFBackground: Frailty has long been seen as an indicator of reduced physical functions in the elderly, which may be caused by a variety of chronic illnesses or cancerous tumors. Dietary fiber was connected with anemia and frailty, whereas it was uncertain if dietary fiber consumption modifies the impact of anemia on frailty in elderly adults.
Methods: We performed a secondary analysis using older adults aged 60 years and over from the National Health and Nutrition Examination Survey (NHANES) 2007-2018 cycles.
J Cancer Res Clin Oncol
November 2023
The human gut microbiota plays numerous roles in regulating host growth, the immune system, and metabolism. Age-related changes in the gut environment lead to chronic inflammation, metabolic dysfunction, and illness, which in turn affect aging and increase the risk of neurodegenerative disorders. Local immunity is also affected by changes in the gut environment.
View Article and Find Full Text PDFJ Clin Oncol
February 2023
Purpose: The absolute cumulative risk of contralateral breast cancer (CBC) for patients with / variants is unknown. The purpose of this study was to develop a CBC risk prediction model for assessing CBC risk for / carriers.
Methods: The primary cohort of 491 patients with / variants was derived from a large series of unselected patients with breast cancer.
Dietary intervention is a safe, broad-spectrum, and low-cost preventive strategy for slow aging. The Okinawan, Mediterranean, and Dietary approaches to stop hypertension (DASH) diets, as well as caloric restriction (CR) and intermittent fasting (IF), are classic and reliable dietary patterns that slow aging by regulating nutrient-sensing pathways, gut microbiota, metabolism, and immunity. Moreover, the proportion of the three macronutrients (carbohydrate, protein and fat) is also vital for slowing aging, but the debates about the appropriate proportion, especially the ratio of carbohydrates and proteins, remain unknown.
View Article and Find Full Text PDFMutations leading to homologous recombination deficiency (HRD) increase the tumor sensitivity to platinum-based chemotherapy and PARP inhibitors. However, reversion mutations often develop conferring acquired drug resistance. There is still a lack of comprehensive investigation on HRR reversion mutations in large pan-cancer cohorts, especially in the Eastern Asian population.
View Article and Find Full Text PDFReversion mutations are associated with clinical resistance to poly(ADP-ribose) polymerase inhibitors (PARPi). Here, we describe the detection of a reversion mutation in a 39-year-old woman with metastatic breast cancer harboring a heterozygous germline exons 7-8 deletion who received PARPi olaparib combined with immune checkpoint inhibitor camrelizumab as third-line therapy. During progression from the olaparib and camrelizumab combination therapy, we identified via genomic sequencing a novel 7-base pair somatic deletion in (c.
View Article and Find Full Text PDFBackground: Though BRCA1 mutation is the most susceptible factor of breast cancer, its prognostic value is disputable. Here in this study, we use a novel method which based on whole-genome analysis to evaluate the chromosome instability (CIN) value and identified the potential relationship between CIN and prognosis of breast cancer patients with germline-BRCA1 mutation.
Materials And Methods: Sanger sequencing or a 98-gene panel sequencing assay was used to screen for BRCA1 germline small mutations in 1151 breast cancer patients with high-risk factors.