Related Experiment Video
Updated: Feb 8, 2026
06:29
Microfluidic Co-culture of Renal Healthy and Tumor Epithelium to Model Kidney Cancer Progression
Published on: January 31, 2025
1.2K
Renal matrix Gla protein expression increases progressively with CKD and predicts renal outcome
Kana N Miyata1, Cynthia C Nast2, Tiane Dai1
1Division of Nephrology and Hypertension, Los Angeles Biomedical Research Institute, Harbor-UCLA Medical Center, 1124 W. Carson Street, Torrance, CA 90502, USA.
Experimental and Molecular Pathology
|July 9, 2018
Summary
Matrix Gla Protein (MGP) increases in kidney disease, correlating with poorer outcomes. This study investigated MGP
Area of Science:
- Nephrology
- Molecular Biology
- Biochemistry
Background:
- Matrix Gla Protein (MGP) is a key inhibitor of calcification and bone development.
- Its role and expression within the kidney remain largely uncharacterized.
Purpose of the Study:
- To investigate the expression and functional significance of Matrix Gla Protein (MGP) in the kidney.
- To analyze the association of MGP with chronic kidney disease (CKD) progression and histological features.
Main Methods:
- Renal MGP expression was assessed in a rat model of 5/6 nephrectomy (5/6 Nx).
- Human kidney biopsies from the NEPTUNE cohort were analyzed for MGP mRNA levels and correlated with clinical and histological data.
- Immunohistochemistry was used to localize uncarboxylated and carboxylated MGP (ucMGP and cMGP) in CKD patient tissues.
Main Results:
- Renal MGP expression was elevated in rats post-5/6 Nx.
- In the NEPTUNE cohort, MGP mRNA levels negatively correlated with estimated glomerular filtration rate (eGFR).
- Tubulointerstitial MGP expression strongly correlated with interstitial fibrosis, tubular atrophy, and inflammation, and predicted a higher risk of eGFR decline and end-stage renal disease (ESRD).
Conclusions:
- Renal MGP expression is upregulated in experimental and human CKD.
- Increased MGP expression is associated with adverse renal outcomes and disease severity.
- Further research is warranted to elucidate the specific mechanisms of MGP action in kidney disease.
Related Concept Videos
02:24Predicting Reaction Outcomes
10.9K
Kinetics describes the rate and path by which a reaction occurs. In contrast, thermodynamics deals with state functions and describes the properties, behavior, and components of a system. It is not concerned with the path taken by the process and cannot address the rate at which a reaction occurs. Although it does provide information about what can happen during a reaction process, it does not describe the detailed steps of what appears on an atomic or a molecular level. On the other hand,...
10.9K
01:17Factors Affecting Renal Clearance: Renal Impairment
480
Renal dysfunction significantly impairs the renal clearance of drugs, leading to potential complications in drug therapy. Renal failure, which can be caused by various factors, poses a significant challenge in the elimination of drugs from the body.
One condition associated with renal failure is uremia. Uremia is characterized by impaired glomerular filtration and fluid accumulation in the body. This condition hinders the renal clearance of drugs, resulting in drug accumulation and potential...
One condition associated with renal failure is uremia. Uremia is characterized by impaired glomerular filtration and fluid accumulation in the body. This condition hinders the renal clearance of drugs, resulting in drug accumulation and potential...
480
01:20Renal Corpuscle
7.5K
The glomerulus and Bowman's capsule are two essential components of the nephron, which is the functional unit of the kidney. These microscopic structures play a critical role in the process of blood filtration to produce urine.
Glomerulus: Structure and Function
The glomerulus is a tiny, intricate network of capillaries located at the beginning of the nephron. It's enveloped by the Bowman's capsule and receives its blood supply from an afferent arteriole, which divides into numerous...
Glomerulus: Structure and Function
The glomerulus is a tiny, intricate network of capillaries located at the beginning of the nephron. It's enveloped by the Bowman's capsule and receives its blood supply from an afferent arteriole, which divides into numerous...
7.5K
01:23Renal Clearance
2.7K
The glomerular filtration rate (GFR) is a critical marker of kidney function, reflecting the efficiency of filtration by the glomeruli. Renal clearance of specific substances, such as inulin or creatinine, is commonly used to measure GFR.
Renal clearance refers to the volume of plasma cleared of a specific substance, such as creatinine, per unit of time. To measure clearance, urine samples are collected over a 24-hour period during each bladder voiding, followed by a single blood sample at the...
Renal clearance refers to the volume of plasma cleared of a specific substance, such as creatinine, per unit of time. To measure clearance, urine samples are collected over a 24-hour period during each bladder voiding, followed by a single blood sample at the...
2.7K
01:08Renal Drug Clearance: Comparison Between Renal Excretion Methods
620
Renal clearance is a critical parameter encompassing kidney filtration, secretion, and reabsorption processes. It is calculated using a specific equation to determine the rate at which the kidneys clear a drug.
Renal clearance is often associated with the renal glomerular filtration rate (GFR), which represents the rate at which plasma is filtered through the glomeruli in the kidney. When drug reabsorption is minimal and there is no active secretion, renal clearance is closely related to the...
Renal clearance is often associated with the renal glomerular filtration rate (GFR), which represents the rate at which plasma is filtered through the glomeruli in the kidney. When drug reabsorption is minimal and there is no active secretion, renal clearance is closely related to the...
620
01:23Drug Elimination: Non-Renal Routes
3.3K
The liver plays a pivotal role in eliminating drugs and their metabolites, primarily through a process known as biliary excretion. This process involves the hepatocytes, the primary cells in the liver that generate bile. A range of transporters actively expels polar drugs or hydrophilic drug metabolites into the bile, which transports the drugs and metabolites into the small intestine. From here, they are eventually expelled from the body through feces. In some instances, the original drug or a...
3.3K