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Endotoxin administration is commonly used to study the inflammatory response, and though traditionally given as a bolus injection, it can be administered as a continuous infusion over multiple hours. Several studies hypothesize that the…

Tissues and Organs · Quantitative Biology 2023-08-04 Kristen A. Windoloski , Susanne Janum , Ronan M. G. Berg , Mette S. Olufsen

The initial reaction of the body to pathogenic microbial infection or severe tissue trauma is an acute inflammatory response. The magnitude of such a response is of critical importance, since an uncontrolled response can cause further…

Uncontrolled, excessive production of pro-inflammatory mediators from immune cells and traumatized tissues can cause systemic inflammatory issues like sepsis, one of the ten leading causes of death in the United States and one of the three…

Tissues and Organs · Quantitative Biology 2019-08-22 Atanaska Dobreva , Renee Brady , Kamila Larripa , Charles Puelz , Jesper Mehlsen , Mette S. Olufsen

The hypothalamic-pituitary-adrenal (HPA) axis is a neuroendocrine system that regulates numerous physiological processes. Disruptions in the activity of the HPA axis are correlated with many stress-related diseases such as post-traumatic…

Neurons and Cognition · Quantitative Biology 2016-04-20 Lae Un Kim , Maria R. D'Orsogna , Tom Chou

In recent in vitro experiments on co-culture between breast tumour spheroids and activated immune cells, it was observed that the introduction of the stress hormone cortisol resulted in a decreased immune cell infiltration into the…

This article seeks to address the prevailing issue of how to measure specific process components of psychobiological stress responses. Particularly the change of cortisol secretion due to stress exposure has been discussed as an…

Quantitative Methods · Quantitative Biology 2026-01-16 Robert Miller , Jan-Georg Wojtyniak , Lisa Weckesser , Nina Alexander , Veronika Engert , Thorsten Lehr

Multi-output Gaussian processes (GPs) are a flexible Bayesian nonparametric framework that has proven useful in jointly modeling the physiological states of patients in medical time series data. However, capturing the short-term effects of…

People with type 1 diabetes (T1D) lack the ability to produce the insulin their bodies need. As a result, they must continually make decisions about how much insulin to self-administer to adequately control their blood glucose levels.…

Machine Learning · Computer Science 2020-09-22 Ian Fox , Joyce Lee , Rodica Pop-Busui , Jenna Wiens

A novel mathematical model for the hypothalamic pituitary adrenal (HPA) axis is proposed to comprehend the oscillations observed in hormone concentration and potential dysfunction within the HPA axis in stressful situation. This model…

Dynamical Systems · Mathematics 2023-11-09 Imran Ahmad , Itishree Jena , A. Priyadarshi

Objective: The design of an Artificial Pancreas (AP) to regulate blood glucose levels requires reliable control methods. Model Predictive Control has emerged as a promising approach for glycemia control. However, model--based control…

Optimization and Control · Mathematics 2022-02-02 Claudia Lopez-Zazueta , Øyvind Stavdahl , Anders Lyngvi Fougner

PULSAR (personalized ultrafractionated stereotactic adaptive radiotherapy) is a form of radiotherapy method where a patient is given a large dose or pulse of radiation a couple of weeks apart rather than daily small doses. The tumor…

Quantitative Methods · Quantitative Biology 2024-02-12 Samiha Rouf , Casey Moore , Debabrata Saha , Dan Nguyen , MaryLena Bleile , Robert Timmerman , Hao Peng , Steve Jiang

The endocrine control of the reproductive function is often studied from the analysis of luteinizing hormone (LH) pulsatile secretion by the pituitary gland. Whereas measurements in the cavernous sinus cumulate anatomical and technical…

Dynamical Systems · Mathematics 2012-07-24 Alexandre Vidal , Qinghua Zhang , Claire Médigue , Stéphane Fabre , Frédérique Clément

Being motivated by the delivery of drugs and vaccines through subcutaneous (SC) injection in human bodies, a theoretical investigation is performed using a two-dimensional mathematical model in the cartesian coordinate. In general, a large…

Fluid Dynamics · Physics 2023-06-08 Abdush Salam Pramanik , Bibaswan Dey , Timir Karmakar , Kalyan Saha

Atherosclerotic plaques form in artery walls due to a chronic inflammatory response driven by lipid accumulation. A key component of the inflammatory response is the interaction between monocyte-derived macrophages and extracellular lipid.…

Cell Behavior · Quantitative Biology 2022-12-08 Keith L Chambers , Mary R Myerscough , Helen M Byrne

Long-term pain conditions after surgery and patients' responses to pain relief medications are not yet fully understood. While recent studies developed an index for nociception level of patients under general anesthesia, based on multiple…

Signal Processing · Electrical Eng. & Systems 2021-09-03 Raheleh Baharloo , Jose C. Principe , Parisa Rashidi , Patrick J. Tighe

A simplified mathematical model of oral hydrocortisone delivery in adrenal insufficiency is described; the model is based on three components (gastric hydrocortisone, free serum cortisol and bound serum cortisol) and is formulated in terms…

Tissues and Organs · Quantitative Biology 2020-06-02 David J. Smith , Alessandro Prete , Angela E. Taylor , Niki Karavitaki , Wiebke Arlt

The hypothalamic pituitary adrenal (HPA) axis responds to physical and mental challenge to maintain homeostasis in part by controlling the body's cortisol level. Dysregulation of the HPA axis is implicated in numerous stress-related…

Dynamical Systems · Mathematics 2019-04-22 Casey Johnson , Roman M. Taranets , Natalia Vasylyeva , Marina Chugunova

A theory for sequence dependent liquid-liquid phase separation (LLPS) of intrinsically disordered proteins (IDPs) in the study of biomolecular condensates is formulated by extending the random phase approximation (RPA) and field-theoretic…

Biomolecules · Quantitative Biology 2022-11-28 Jonas Wessén , Suman Das , Tanmoy Pal , Hue Sun Chan

We present the design and \textit{in-silico} evaluation of a closed-loop insulin delivery algorithm to treat type 1 diabetes (T1D) consisting in a data-driven multi-step-ahead blood glucose (BG) predictor integrated into a Linear…

Systems and Control · Electrical Eng. & Systems 2023-07-25 Eleonora Maria Aiello , Mehrad Jaloli , Marzia Cescon

The thyroid gland, in conjunction with the pituitary and the hypothalamus, forms a regulated system due to their mutual influence through released hormones. The equilibrium point of this system, commonly referred to as the "set point", is…

Tissues and Organs · Quantitative Biology 2024-10-10 Clara Horvath , Andreas Körner , Corinna Modiz
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