Papillary renal cell carcinoma (PRCC) is one of the second common subtype among all renal carcinoma. In this paper, it aimed at a 67 years old male patient with right multifocal papillary renal cell carcinoma (PRCC). ...Papillary renal cell carcinoma (PRCC) is one of the second common subtype among all renal carcinoma. In this paper, it aimed at a 67 years old male patient with right multifocal papillary renal cell carcinoma (PRCC). Histological finding concluded papillae and tubular structures covered by mild small cells with pale cytoplasm and were characterized by small oval nuclei. The neoplastic mesenchymal consists of foamy macrophages, necrosis, and cholesterol crystal. Immunohistochemically, all papillae and tubular structures express cytokeratin 7 (CK7), CD10, CK (AE1/AE3), alpha-methylacyl-coenzyme A racemase (AMACR) and EMA; but was negative for antibody S-100. All the foamy macrophages show positive reactivity for CD68. The patient underwent right radical nephrectomy and survived well six months after the operation during our follow-up.展开更多
Pharmacokinetic models are mathematical models which provide insights into the interaction of chemicals with biological processes. During recent decades, these models have become central of attention in industry that ...Pharmacokinetic models are mathematical models which provide insights into the interaction of chemicals with biological processes. During recent decades, these models have become central of attention in industry that caused to do a lot of efforts to make them more accurate. Current work studies the process of drug and nanoparticle (NPs) distribution throughout the body which consists of a system of ordinary differential equations. We use a tri-compartmental model to study the perfusion of NPs in tissues and a six-compartmental model to study drug distribution in different body organs. We have performed global sensitivity analysis by LHS Monte Carlo method using PRCC. We identify the key parameters that contribute most significantly to the absorption and distribution of drugs and NPs in different organs in body.展开更多
An epidemic model which describes Huanglongbing transmission is proposed with the goal of investigating the effect of quarantine measures on the spread of diseases. First of all, the analytical formula for the basic r...An epidemic model which describes Huanglongbing transmission is proposed with the goal of investigating the effect of quarantine measures on the spread of diseases. First of all, the analytical formula for the basic reproduction number <em>R</em><sub>0</sub> is obtained by the means of next generation matrix, and the existence of disease-free equilibrium and endemic equilibrium is discussed. Then, the local stability and the global stability of equilibria are investigated by using Routh-Hurwitz criterion and Lyapunov function, respectively. Numerical simulations indicate that comprehensive quarantine measures can effectively control the spread of Huanglongbing. It provides a reliable tactic basis for preventing the epidemic outbreak.展开更多
文摘Papillary renal cell carcinoma (PRCC) is one of the second common subtype among all renal carcinoma. In this paper, it aimed at a 67 years old male patient with right multifocal papillary renal cell carcinoma (PRCC). Histological finding concluded papillae and tubular structures covered by mild small cells with pale cytoplasm and were characterized by small oval nuclei. The neoplastic mesenchymal consists of foamy macrophages, necrosis, and cholesterol crystal. Immunohistochemically, all papillae and tubular structures express cytokeratin 7 (CK7), CD10, CK (AE1/AE3), alpha-methylacyl-coenzyme A racemase (AMACR) and EMA; but was negative for antibody S-100. All the foamy macrophages show positive reactivity for CD68. The patient underwent right radical nephrectomy and survived well six months after the operation during our follow-up.
文摘Pharmacokinetic models are mathematical models which provide insights into the interaction of chemicals with biological processes. During recent decades, these models have become central of attention in industry that caused to do a lot of efforts to make them more accurate. Current work studies the process of drug and nanoparticle (NPs) distribution throughout the body which consists of a system of ordinary differential equations. We use a tri-compartmental model to study the perfusion of NPs in tissues and a six-compartmental model to study drug distribution in different body organs. We have performed global sensitivity analysis by LHS Monte Carlo method using PRCC. We identify the key parameters that contribute most significantly to the absorption and distribution of drugs and NPs in different organs in body.
文摘An epidemic model which describes Huanglongbing transmission is proposed with the goal of investigating the effect of quarantine measures on the spread of diseases. First of all, the analytical formula for the basic reproduction number <em>R</em><sub>0</sub> is obtained by the means of next generation matrix, and the existence of disease-free equilibrium and endemic equilibrium is discussed. Then, the local stability and the global stability of equilibria are investigated by using Routh-Hurwitz criterion and Lyapunov function, respectively. Numerical simulations indicate that comprehensive quarantine measures can effectively control the spread of Huanglongbing. It provides a reliable tactic basis for preventing the epidemic outbreak.
