Mesangial cells
provide structural support to the glomerular tuft
, produce and maintain mesangial matrix, communicate with other glomerular cells by secreting soluble factors, and may contribute to the glomerular capillary flow via their contractile properties.
What is mesangial proliferative nephritis?
Specialty. Nephrology. Mesangial proliferative glomerulonephritis is
a form of glomerulonephritis associated primarily with the mesangium
. There is some evidence that interleukin-10 may inhibit it in an animal model. It is classified as type II lupus nephritis by the World Health Organization (WHO).
What is mesangial proliferative nephrotic syndrome?
Specialty. Nephrology. Mesangial proliferative glomerulonephritis is
a form of glomerulonephritis associated primarily with the mesangium
. There is some evidence that interleukin-10 may inhibit it in an animal model. It is classified as type II lupus nephritis by the World Health Organization (WHO).
What is mesangial Hypercellularity?
Abstract. Diffuse mesangial hypercellularity (DMH) is
a rare primary mesangial proliferative glomerulonephritis associated with idiopathic nephrotic syndrome (INS)
.
What does proliferative glomerulonephritis mean?
Proliferative glomerulonephritis describes
the finding of increased cellularity of the glomerulus
, which may be due to proliferation of intrinsic glomerular cells, infiltration of leucocytes, or both.
What causes mesangial proliferation?
Mesangial cell proliferation, which characterizes MPGN, is a common feature of various
kidney disorders
. It may be seen in several diseases in addition to IgAN, including IgM nephropathy (IgMN), lupus nephritis (caused by lupus), Alport’s syndrome, and post infectious glomerulonephritis.
What is lupus nephritis disease?
Lupus nephritis occurs
when lupus autoantibodies affect structures in your kidneys that filter out waste
. This causes kidney inflammation and may lead to blood in the urine, protein in the urine, high blood pressure, impaired kidney function or even kidney failure.
Where are the mesangial cells found?
Mesangial cells are contractile cells that constitute
the central stalk of the glomerulus
. On the capillary lumen side, mesangial cells are in direct contact with the glomerular endothelium without an intervening basement membrane, as one typically can observe with pericytes.
Where are Intraglomerular mesangial cells located?
Intraglomerular mesangial cells are specialized pericytes located
among the glomerular capillaries within a renal corpuscle
.
Which hormone causes relaxation of mesangial cells?
(26) showed that isolated glomeruli, precontracted by ANG II, were dilated in the presence of
ANP
. Singhal et al. (216) found that ANP caused relaxation of isolated rat mesangial cells in culture.
What is minimal change nephrotic syndrome?
Minimal Change Disease (MCD for short) is
a kidney disease in which large amounts of protein is lost in the urine
. It is one of the most common causes of the Nephrotic Syndrome (see below) worldwide. The kidneys normally work to clean the blood of the natural waste products that build up over time.
What is focal scarring?
Focal segmental glomerulosclerosis is
scar tissue in the filtering unit of the kidney
. This structure is called the glomerulus. The glomeruli serve as filters that help the body get rid of harmful substances. Each kidney has thousands of glomeruli. “Focal” means that some of the glomeruli become scarred.
What causes FSGS?
What causes FSGS? FSGS is
not caused by a single disease
. It can have many different causes. The scarring may happen because of an infection, or drug, or a disease that affects the entire body, like diabetes, HIV infection, sickle cell disease or lupus.
What are the signs and symptoms of glomerulonephritis?
- Lack of appetite.
- Nausea and vomiting.
- Tiredness.
- Difficulty sleeping.
- Dry and itchy skin.
- Nighttime muscle cramps.
What is the most common cause of acute Postinfectious glomerulonephritis?
The most common type of PIGN is caused by a
type of bacteria called streptococcus (strep)
. Post-streptococcal glomerulonephritis most often affects children 1-2 weeks after a streptococcal throat infection (“strep throat”). Less often, it can happen 3-6 weeks after a streptococcal skin infection.
What causes proliferative glomerulonephritis?
Causes. Acute proliferative glomerulonephritis (post-streptococcal glomerulonephritis) is caused by
an infection with streptococcus bacteria
, usually three weeks after infection, usually of the pharynx or the skin, given the time required to raise antibodies and complement proteins.
