Kidney Glomerulus
It consists of a network of capillaries surrounded by a specialized epithelial structure called the Bowman's capsule.
The glomerulus plays a crucial role in maintaining fluid balance, electrolyte homeostasis, and blood pressure regulation.
Accurate understanding of glomerular structure and function is essential for research on kidney disease, hypertension, and other related conditions.
PubCompare.ai's AI-driven platform can help optimize your kidney glomerulus research by identifying the best protocols and products through comprehensive comparisons of literature, preprints, and patents, enhancing reproducibility and accurracy with cutting-edg tools.
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Most cited protocols related to «Kidney Glomerulus»
The KNOW-CKD will enroll ethnic Korean patients with CKD who range in age between 20 years and 75 years. The CKD stages from 1 to 5 (predialysis), based on the eGFR, is calculated using the four-variable Modification of Diet in Renal Disease (MDRD) equation as follows:
eGFR (ml/min per 1.73 m2) = 175 × [serum Cr (mg/dl)] -1.154 × [age]-0.203 × [0.742 if female] × [1.212 if black], using serum creatinine concentrations measured at a central laboratory and an assay traceable to the international reference material [12 (link)].
Excluded subjects are those who 1) are unable or unwilling to give written consent, 2) have previously received chronic dialysis or organ transplantation, 3) have heart failure (NYHA class 3 or 4) or liver cirrhosis (Child-Pugh class 2 or 3), 4) have a past or current history of malignancy, 5) are currently pregnant, or 6) have a single kidney due to trauma or kidney donation.
We defined and allocated the specific causes of the CKD into four subgroups: glomerulonephritis (GN), diabetic nephropathy (DN), hypertensive nephropathy (HTN), and polycystic kidney disease (PKD). The definition of the subgroup is defined by the pathologic diagnosis, in the event that the biopsy result is available. Otherwise, the subgroup classification depends on the clinical diagnosis. GN is defined by the presence of glomerular hematuria or albuminuria with or without an underlying systemic disease causing glomerulonephritis. The diagnosis of DN is based on albuminuria in a subject with type 2 diabetes mellitus and the presence of diabetic retinopathy. HTN is defined by the patient’s hypertension history and the absence of a systemic illness associated with renal damage. Unified ultrasound criteria [13 (link)] will be used to diagnose PKD. The other causative diseases will be categorized as ‘unclassified’.
Construction of KIM-1 sandwich ELISA (R&D Cat# DY1750, Minneapolis, MN): The wells of Nunc-Maxisorp EIA plates were coated by diluting the capture antibody (72 μg/mL) to a working concentration of 0.4 μg/mL in PBS with 100 μL in each well. The plate was sealed and incubated overnight at room temperature. Each well was aspirated and washed using an automated microplate washer (Bio-Tek) with 400 μL of Wash Buffer (0.05% Tween-20 in PBS), repeating the process two times for a total of three washes. The plates were blocked by adding 300 μL of reagent diluent (1% BSA in PBS, 0.2 μm filtered) to each well and incubated at room temperature for 2 hours. After washing as in the previous step, 100 µL of standard recombinant human KIM-1 (0-2000 pg/mL), control, and urine sample was pipetted to the designated well, covered with an adhesive strip, and placed on the orbital shaker at 400 rpm at room temperature for 2 hours. The plate was washed using the same wash protocol as before, and 100 μL of the biotinylated goat anti-human KIM-1 detection antibody diluted in reagent diluent to a working concentration of 400 ng/mL was added to each well. The plate was covered with a new adhesive strip, incubated at room temperature for 2 hours with continued shaking at 400 rpm. Washing step was repeated and 100 μL of streptavidin-HRP diluted to a working dilution was added to each well. The plate was protected from light, covered with a new adhesive strip, shaken at 400 rpm, and incubated at room temperature for 20 minutes. After washing, 100 µL substrate solution was added to all wells, protected from light, covered with an adhesive strip, shaken at 400 rpm, and incubated at room temperature for 7 minutes. The reaction was stopped by adding 50 µL of stop solution to all wells. The absorbance was measured using a plate reader (BioTek Elx800) at 450 nm with an absorbance correction at 540 nm. The urinary KIM-1 concentration was calculated based on the standard curve and expressed in absolute terms (pg/mL).
Evaluation of the KIM-1 ELISA: The validation of the KIM-1 ELISA was evaluated by measuring linearity, intra-run precision, inter-run precision, analytical sensitivity, recovery, dilution verification, reference range, stability and length of run. Details of the criteria for each are described in the result section.
Sample collection and analysis: Urine samples were collected asceptically directly in urine cups and stored at -70 oC within 4 hours. All statistical analysis was carried out using the program EP evaluator 15 (version 8.0, DG Rhoads).
Analytical Testing: Urinary creatinine was measured by the Jaffe rate-blanked creatinine assay using a Roche/ Hitachi 911 system (Roche Diagnostics, Indianapolis , IN, USA). Serum enzymatic creatinine was measured using the Roche/Hitachi P800 analyzer. Glomerular filteration rate (GFR) was calculated using the MDRD (modification of diet in renal disease) formula 186 X (SerumCreatinine)-1.154 X (Age)-0.203 X (0.742 if female and 1.000 if male) X (1.210 if African American and 1.000 if others) (mL/min/1.73m2) 16 .
Most recents protocols related to «Kidney Glomerulus»
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A statistical analysis of the subjects’ mean responses to single odours was performed via paired t-tests with FDR correction.
The field of view of 280 × 280 µm2 was resolved by 128 × 128 pixels. The fluorescence intensity was recorded with a depth of 13 bits. The image acquisition at a frame rate of 10.1 Hz was synchronized to the stimulus protocol.
In addition to the functional images, a z-stack of the antennal lobe was acquired with a spatial resolution of 512 × 512 pixels and a z-layer distance of 2 µm to perform the morphological identification of glomeruli.
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More about "Kidney Glomerulus"
It is responsible for removing waste, toxins, and excess water from the bloodstream, playing a crucial role in maintaining fluid balance, electrolyte homeostasis, and blood pressure regulation.
The glomerulus consists of a network of capillaries surrounded by a specialized epithelial structure called the Bowman's capsule.
Accurate understanding of glomerular structure and function is essential for research on kidney disease, hypertension, and other related conditions.
Researchers can utilize tools like Image-Pro Plus 6.0, a powerful image analysis software, to study glomerular morphology and function.
Fetal bovine serum (FBS) is often used to culture glomerular cells, while Dynabeads, magnetic beads coated with specific antibodies, can be used to isolate glomerular cells for further analysis.
Techniques like TRIzol reagent and the RNeasy Mini Kit can be employed to extract and purify RNA from glomerular samples, enabling gene expression studies.
Antibiotics like penicillin and streptomycin are commonly used to prevent contamination in cell culture experiments involving the glomerulus.
The BX51 microscope, a high-quality optical microscope, can be utilized to visualize and analyze glomerular structures.
PubCompare.ai's AI-driven platform can help optimize kidney glomerulus research by identifying the best protocols and products through comprehensive comparisons of literature, preprints, and patents.
This can enhance reproducibility and accuracy, allowing researchers to make informed decisions and advance their studies on this crucial filtration unit of the kidneys.
Start your research journey today and discover how PubCompare.ai can support your efforts to understand the structure and function of the kidney glomerulus.