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Physiological Condition Articles & Analysis
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The Tricarboxylic Acid (TCA) Cycle, also known as the Krebs Cycle or Citric Acid Cycle, is a fundamental metabolic pathway that plays a crucial role in cellular respiration. This cycle is integral to the process by which cells extract energy from carbohydrates, fats, and proteins, making it a cornerstone of bioenergetics in living organisms. What is the TCA Cycle? The TCA Cycle takes place in ...
Preclinical drug discovery represents a critical phase in the development of new therapeutics. It is the process that bridges the gap between basic research and clinical testing, allowing for the evaluation of potential drug candidates in biological systems before they are tested in humans. Central to this phase is the use of appropriate disease models, which are essential for understanding the ...
Exosomes, small vesicles released by cells, play an increasingly prominent role in intercellular communication and disease modulation. These nano-sized particles contain a diverse array of molecular cargo, including proteins, lipids, RNA, and metabolites, which serve as biomarkers for a variety of physiological conditions. Exosome lipidomics and metabolomics are key fields that focus on profiling ...
Collagen is the most abundant protein in tissues and organs, and glycated collagen refers to collagen modified by glycosylation. Glycated collagen mainly exists in various tissues in the human body, especially those rich in collagen, such as skin, bones, joints, blood vessels, and other connective tissues.Under normal physiological conditions, glycation occurs as a natural biochemical process, ...
Structure of Matrix Metalloproteinase (MMP) Family In vertebrates, the MMP family consists of 28 members, at least 23 of which are expressed in human tissues, 14 of which are expressed in the vascular system. MMPs are usually classified into collagenases, gelatinases, stromelysins, matrilysins, membrane-type (MT)-MMPs, and other MMPs based on their substrates and the organization of their ...
The purpose of an anesthesia machine is to deliver precise amounts of anesthetic gases or medications to patients during surgical procedures to maintain anesthesia. Throughout this process, closely monitoring key respiratory parameters, including EtCO2 (end-tidal carbon dioxide concentration) and oxygen levels, could ensure the patient's respiratory function remains normal and safe. Given that ...
Cytokines, small molecules with potent biological activity, are primarily synthesized by immune and non-immune cells (e.g., vascular endothelial cells, epidermal cells, fibroblasts) in response to stimulation. These signaling molecules form intricate networks that contribute to immune responses, inflammatory reactions, cell proliferation, and growth. Cytokine Dysregulation in Systemic Immune ...
Antibody-drug conjugates (ADCs), as emerging anticancer drugs, can deliver highly cytotoxic molecules directly to cancer cells to kill them. ADC is a monoclonal antibody covalently bound to cytotoxic chemical substances (payload) through linker. ADC linker plays a key role in the therapeutic effect of ADC, and its characteristics greatly affect the therapeutic index, pharmacodynamics and ...
The study of respiratory function and control of breathing is vital for understanding various physiological and pathological conditions. In preclinical research, gaining accurate and reliable data is essential to make meaningful discoveries and develop potential therapies. Combining implantable telemetry with whole body plethysmography offers a powerful approach that provides researchers with an ...
Fluorescent substance and fluorescent labeling technology The compounds upon which fluorescent labeling depends are called fluorescent substances. Fluorescent substances refer to compounds with a conjugated double bond system chemical structure, which can be excited into an excited state when irradiated by ultraviolet light or blue-violet light, and emit fluorescence when returning to the ground ...
Mesothelin is a glycosylphosphatidylinositol (GPI)-anchored cell surface glycoprotein. Its biological function has not yet been clarified, but due to its limited distribution in normal tissues and high expression in some tumor tissues, it is expected to be used in tumor-specific treatment. In existing studies of human epidermoid carcinoma cell lines expressing mesothelin, biodistribution analysis ...
Antibody-drug conjugates (ADCs) usually consist of monoclonal antibodies (mAbs) covalently linked to cytotoxic drugs via chemical linkers. With high specific targeting ability and strong killing effect, it has achieved precise and efficient removal of cancer cells, and has become one of the hot spots in the development of anticancer drugs. In 2000, the FDA first approved the ADC drug Mylotarg ...
Structure and function of mesothelin The MSLN gene is located in chromosome 16p13. It contains 17 exons, with a cDNA length of about 2138bp, has a 1884-bp open reading frame, and encodes the precursor protein of 628 amino acids (69 kDa). This precursor protein can be hydrolyzed by furin protease into two parts: mesothelin in the size of 40 kDa fragments and 31 kDa secreted fragments called ...
The SIAP study investigates the effect of using Ergotrics' Inflatable Prone Support (IPS) on intra-abdominal pressure (IAP) during spine surgery. Study background The objective of this study is to demonstrate the ability of the inflatable Prone Supports (IPS) to lower the IAP of patients in the prone position. Whenever the patients’ position is changed to prone, the IAP is increased due to ...
Glutathione is a tripeptide containing sulfhydryl groups combined with glutamic acid, cysteine and glycine. Glutathione has two forms, reduced (G-SH) and oxidized (G-S-S-G), and reduced glutathione accounts for the vast majority under physiological conditions. Glutathione reductase catalyzes the interconversion between the two types. The coenzyme of this enzyme is NADPH provided by the ...
Abstract The goal of this study is to develop unique native endothelium mimicking nanomatrices and evaluate their effects on adhesion and spreading of human umbilical vein endothelial cells (HUVECs) and aortic smooth muscle cells (AoSMCs). These nanomatrices were developed by self-assembly of peptide amphiphiles (PAs) through a solvent evaporation technique. Three PAs, one containing the ...
Immunotherapy, in addition to surgery, chemotherapy, and radiotherapy, has now become the fourth pillar of anticancer treatment, with T cell-based immunotherapy being a successful cancer treatment technique. T cells can be separated into two subpopulations based on the expression of T-cell receptors (TCRs). αβ T cells, expressing expressing αβ TCR, recognize peptide antigens, such as those ...
With rapid development in sequencing technology, researchers can better assess the effect of the gut microbiome on human health. Human beings have a symbiotic relationship with the microbiota since birth. The environment, proximity to other humans and animals, diet, genetics, and time changes can all affect the microbial composition of our skin, mouth, and intestines. Compared with other ...
The microbiome has been shown to play roles in many different disease processes and is implicated in many more, from infectious and gastrointestinal diseases to autoimmune and neurological disorders. Advanced models of the gut leveraging intestinal and colonic stem cells are enabling the development of more reliable and robust systems for evaluating the impact of changes in the microbiome on gut ...
Abstract Purpose: Limited means exist to assess gastrointestinal activity in pediatric patients postoperatively. Recently, myoelectric gastrointestinal activity recorded by cutaneous patches has been shown in adult patients to be predictive of clinical return of gastrointestinal function postoperatively. The aim of this case series is to demonstrate the feasibility of this system in ...