The largest database of trusted experimental protocols
> Anatomy > Body Part > Kidney Glomerulus

Kidney Glomerulus

The kidney glomerulus is the fundamental filtration unit of the kidneys, responsible for removing waste, toxins, and excess water from the blood.
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.
Start your research journey today!

Most cited protocols related to «Kidney Glomerulus»

For the human kidney tissue (glomeruli or tubuli), purified total RNAs were amplified using the Two-Cycle Target Labeling Kit (Affymetrix), as per the manufacturer’s protocol (19 (link)). The raw and analyzed data files have been uploaded to the National Center for Biotechnology Information Gene Expression Omnibus and can be accessed under the following accession numbers: GSE 30122 (all data samples).
Publication 2011
Gene Expression Homo sapiens Kidney Kidney Glomerulus RNA Tissues
Each participating center will enroll approximately 250 consecutive individuals over a 5-year period from 2011 until 2015, totaling 2,450 adult patients with CKD who provide written informed consent. The participating individuals will be monitored for approximately 10 years until death or until ESRD occurs.
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’.
Full text: Click here
Publication 2014
Adult Biological Assay Biopsy Child Creatinine Diabetes Mellitus, Non-Insulin-Dependent Diabetic Nephropathy Diabetic Retinopathy Diagnosis Dialysis Diet EGFR protein, human Glomerulonephritis Heart Failure Hematuria High Blood Pressures Hypertensive Nephropathy Kidney Kidney Diseases Kidney Failure, Chronic Kidney Glomerulus Koreans Liver Cirrhosis Malignant Neoplasms Organ Transplantation Patients Polycystic Kidney Diseases Renal Agenesis, Unilateral Serum Ultrasonics Woman Wounds and Injuries
The mouse and human CEL files were processed using the GenePattern analysis pipeline (www.genepattern.com). CEL file normalization was performed with the Robust Multichip Average (RMA) method using the mouse and human Entrez-Gene custom CDF annotation from Brain Array version 10 http://brainarray.mbni.med.umich.edu/Brainarray/default.asp). The normalized files were log2 transformed and batch correction was performed for the NZB/W and NZW/BXSB murine data (25 (link)).
The poly-A RNA control kit was used in processing the mouse microarray data. The expression baseline was defined by calculating the gene expression median of each gene, and adding one standard deviation to the minimum value obtained. Of the 16539 mouse genes represented on the Affymetrix genechip, 13425, 13600 and 14252 were expressed above the defined expression baseline in NZB/W, NZM2410 and NZW/BXSB respectively. Of the 12029 human genes, 11285 and 11429 were expressed above the 27 Poly-A Affymetrix control expression baseline (negative controls) in the glomerular and tubulointerstitial compartments respectively and were used for further analyses. Mouse and human normalized data files are uploaded on Gene Omnibus website (http://www.ncbi.nlm.nih.gov/geo/) and accessible under reference numbers [GEO: GSE32583 and GSE32591].
IgA nephropathy (IgAN) and hypertensive nephropathy (HT) gene expression profiles from ERCB cohorts were available to the investigators as part of an independent study (Wenjun Ju et al, manuscript under review) and were compared with the presented LN data. IgAN and HT data are available on GEO under the reference number GSE35488 and GSE37463 (the last one will be activated after acceptance of the manuscript).
Publication 2012
Brain Gene Annotation Gene Chips Gene Expression Genes Homo sapiens Hypertensive Nephropathy IGA Glomerulonephritis Kidney Glomerulus Mice, Laboratory Microarray Analysis Mus Poly A RNA, Polyadenylated
Sample collection from Healthy population: For the determination of the reference interval, blood and urine samples were collected from healthy healthcare professionals (10 males and 10 females). Individuals were informed of the testing to be performed and only the specified testing was performed on the collected reference specimens. Analyses were conducted with the full respect for the individual's right to confidentiality. Information regarding their age, gender and race was also collected with the healthcare professional's consent to calculate the glomerular filtration rate (GFR). Urine creatinine and serum creatinine was assayed for each of these samples. Freshly collected urine samples were allowed to sit at room temperature for 30 minutes to sediment, and the supernatant was aliquoted and stored at -70 oC until analysis.
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 .
Publication 2009
African American Antibodies, Anti-Idiotypic Biological Assay BLOOD Buffers Creatinine Diagnosis Diet Enzyme-Linked Immunosorbent Assay Enzymes Females Glomerular Filtration Rate Goat HAVCR1 protein, human Health Personnel Homo sapiens Hypersensitivity Immunoglobulins Kidney Diseases Kidney Glomerulus Light Males Population Health Serum Specimen Collection Streptavidin Technique, Dilution Tween 20 Urine
Twelve week old male C57BL/6J mice (The Jackson Laboratory, Bar Harbor, ME, USA) were used in the present study. All protocols were approved by the Institutional Animal Care and Use Committee of the Virginia Commonwealth University. To speed up the damaging effects of hHcys on glomeruli, all mice were uninephrectomized as described in previous studies 9 (link), 14 (link). After a 1-week recovery period from the uninephrectomy, mice were fed a normal diet or a folate-free (FF) diet (Dyets Inc, Bethlehem, PA, USA) for 1, 2, or 4 weeks to induce hHcys. In another series of experiments, ASC shRNA or a scrambled shRNA (Origene, Rockville, MD, USA) plasmid with a luciferase expression vector was co-transfected into the kidneys of mice via intrarenal artery injection with help of the ultrasound microbubble gene delivery system as we described previously 9 (link). After delivery of plasmids into the kidney, these uninephrectomized mice were maintained on a normal or a FF diet for 4 weeks. In additional experimental groups, mice were injected with Z-WEHD-FMK (WEHD, R&D system, Minneapolis, MN, USA), a caspase-1 inhibitor (1 mg/kg/day, i.p.) during the FF diet treatment. One day before sacrificing these mice, 24-hour urine samples were collected using mouse metabolic cages. After blood samples were collected, the mice were sacrificed and renal tissues were harvested for biochemical and molecular analysis as well as morphological examinations as we described previously 8 (link).
Publication 2012
Arteries BLOOD Cloning Vectors Diet Folate Gene Delivery Systems Institutional Animal Care and Use Committees interleukin-1beta-converting enzyme inhibitor Kidney Kidney Glomerulus Luciferases Males Mice, Inbred C57BL Microbubbles Mus Obstetric Delivery Physical Examination Plasmids Short Hairpin RNA Tissues Ultrasonography Urine

Most recents protocols related to «Kidney Glomerulus»

Example 3

As shown in FIG. 2, immunoperoxidase staining for ET-1 is negative in kidney tissue from a donor nephrectomy (panels a and b). A kidney biopsy from a patient with FSGS (panels c and d) exhibits increased content of ET-1 in parietal epithelium lining Bowman's space (large arrow in panel d), as well as visceral epithelial cells overlying a segmental scar (smaller arrow in panel d). Surrounding tubules also show increased cytoplasmic expression of ET-1. A kidney biopsy from a patient infected with HIV (panels e and f) shows increased expression of ET-1 in tubules, similar to that in the FSGS sample. In contrast to FSGS, however, glomerular epithelial cells evidence only trace amounts of the protein.

Full text: Click here
Patent 2024
Biopsy Cicatrix Cytoplasm Epithelial Cells Epithelium Kidney Kidney Glomerulus Nephrectomy Patients Podocytes Proteins Tissue Donors Tissues

Protocol full text hidden due to copyright restrictions

Open the protocol to access the free full text link

Publication 2023
American Indian or Alaska Native Biopsy Diabetes Mellitus Digestive System Ethics Committees, Research Gene Chips Gene Expression Genome, Human Genotype Kidney Kidney Diseases Kidney Glomerulus Living Donors Microarray Analysis Microdissection Tissue Procurement Tissues Vulnerable Populations
Signals from a total of 14 bees were recorded and analysed. Data analysis was fully automated, based on custom MATLAB (R2019b, MathWorks) scripts. The fluorescence time series, containing an entire experimental sequence, were separated into periods of 3 s pre-stimulus, 3 s during the stimulus and 3 s post-stimulus for each trial. For each frame, we computed the relative fluorescence change ΔF/F(t)=-Ft-FbFb, via normalizing the raw fluorescence signal Ft by the average signal during the pre-stimulus period Fb. This signal is proportional to the relative change in calcium concentration and thus the neuronal firing rate64 (link). ΔF/F was averaged over the 10 trials for each odour. Next, the 2D activity maps were segmented for individual glomerular responses. The glomerular boundaries were obtained by recursively comparing three sources of information, the anatomical features from an additionally recorded 3D image stack (Supplementary Fig. 2a), the functional response maps (Supplementary Movie 2) and a regional homogeneity analysis that tests the correlation between the signals of each pixel and those from neighbouring pixels. This measure is high within individual glomeruli and falls off at their borders (Supplementary Fig. 2b). After coherently responding structures were segmented, the glomerular identity was determined using the digital 3D antennal lobe atlas 23. The analysis was limited to the 19 most frequently identified glomeruli. If the identity of individual glomeruli could not be determined with certainty, they were discarded, so that the total number of analysed glomeruli fluctuated across bees (Fig. 4c).
A statistical analysis of the subjects’ mean responses to single odours was performed via paired t-tests with FDR correction.
Full text: Click here
Publication 2023
Bees Calcium Fluorescence Kidney Glomerulus Microtubule-Associated Proteins Neurons Odors Reading Frames
The monotonicity of the response x (x = maximal spike density function (SDF) or averaged SDF, each across all glomeruli) in this context was calculated as. m=x10-1-maxxmeanx, i.e. the difference between the SDF at the highest tested odour concentration ( 10-1) and the highest observed SDF, normalised by the mean observed SDF, where the maximum and mean were taken across all concentrations from 10-7 to 10-1 . Monotonicity takes values smaller or equal 0, and monotonic odours have m=0 .
Full text: Click here
Publication 2023
Kidney Glomerulus Odors
The two-photon microscope (Ultima IV, Bruker) is based on an ultra-short pulsed laser (Mai Tai, Deep See HP, Spectra-Physics). The laser was tuned to 780 nm for fura2 excitation. All images were acquired with a water-immersion objective (10 × , NA 0.3, Olympus). The fluorescence was collected in epi-configuration, selected by a dichroic mirror, and filtered with a band-pass filter centred at 525 nm and with a 70 nm bandwidth (Chroma Technology Corp). Finally, it was detected by a photomultiplier tube (Hamamatsu Photonics). Laser powers of about 10 mW were used in order to balance signal-to-noise ratio (SNR) against photo-damage effects that reduced the bee life span.
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.
Full text: Click here
Publication 2023
Fluorescence Kidney Glomerulus Microscopy Reading Frames Strains Submersion

Top products related to «Kidney Glomerulus»

Sourced in United States, Japan, Germany, United Kingdom, China, Hungary, Singapore, Canada, Switzerland
Image-Pro Plus 6.0 is a comprehensive image analysis software package designed for scientific and industrial applications. It provides a wide range of tools for image capture, enhancement, measurement, analysis, and reporting.
Sourced in United States, China, United Kingdom, Germany, Australia, Japan, Canada, Italy, France, Switzerland, New Zealand, Brazil, Belgium, India, Spain, Israel, Austria, Poland, Ireland, Sweden, Macao, Netherlands, Denmark, Cameroon, Singapore, Portugal, Argentina, Holy See (Vatican City State), Morocco, Uruguay, Mexico, Thailand, Sao Tome and Principe, Hungary, Panama, Hong Kong, Norway, United Arab Emirates, Czechia, Russian Federation, Chile, Moldova, Republic of, Gabon, Palestine, State of, Saudi Arabia, Senegal
Fetal Bovine Serum (FBS) is a cell culture supplement derived from the blood of bovine fetuses. FBS provides a source of proteins, growth factors, and other components that support the growth and maintenance of various cell types in in vitro cell culture applications.
Sourced in United States, Norway, Germany, United Kingdom, France, China, Japan, Switzerland, Belgium, Canada, Italy, Australia
Dynabeads are magnetic beads used in various laboratory applications. They are designed to efficiently capture and isolate target molecules, such as proteins, nucleic acids, or cells, from complex samples. The magnetic properties of Dynabeads allow for easy separation and manipulation of the captured targets.
Sourced in United States, China, Japan, Germany, United Kingdom, Canada, France, Italy, Australia, Spain, Switzerland, Netherlands, Belgium, Lithuania, Denmark, Singapore, New Zealand, India, Brazil, Argentina, Sweden, Norway, Austria, Poland, Finland, Israel, Hong Kong, Cameroon, Sao Tome and Principe, Macao, Taiwan, Province of China, Thailand
TRIzol reagent is a monophasic solution of phenol, guanidine isothiocyanate, and other proprietary components designed for the isolation of total RNA, DNA, and proteins from a variety of biological samples. The reagent maintains the integrity of the RNA while disrupting cells and dissolving cell components.
Sourced in Germany, United States, United Kingdom, Netherlands, Spain, Japan, Canada, France, China, Australia, Italy, Switzerland, Sweden, Belgium, Denmark, India, Jamaica, Singapore, Poland, Lithuania, Brazil, New Zealand, Austria, Hong Kong, Portugal, Romania, Cameroon, Norway
The RNeasy Mini Kit is a laboratory equipment designed for the purification of total RNA from a variety of sample types, including animal cells, tissues, and other biological materials. The kit utilizes a silica-based membrane technology to selectively bind and isolate RNA molecules, allowing for efficient extraction and recovery of high-quality RNA.
Sourced in United States, Germany, United Kingdom, China, Canada, France, Japan, Australia, Switzerland, Israel, Italy, Belgium, Austria, Spain, Gabon, Ireland, New Zealand, Sweden, Netherlands, Denmark, Brazil, Macao, India, Singapore, Poland, Argentina, Cameroon, Uruguay, Morocco, Panama, Colombia, Holy See (Vatican City State), Hungary, Norway, Portugal, Mexico, Thailand, Palestine, State of, Finland, Moldova, Republic of, Jamaica, Czechia
Penicillin/streptomycin is a commonly used antibiotic solution for cell culture applications. It contains a combination of penicillin and streptomycin, which are broad-spectrum antibiotics that inhibit the growth of both Gram-positive and Gram-negative bacteria.
Sourced in Japan, United States, Germany, Italy, Denmark, United Kingdom, Canada, France, China, Australia, Austria, Portugal, Belgium, Panama, Spain, Switzerland, Sweden, Poland
The BX51 microscope is an optical microscope designed for a variety of laboratory applications. It features a modular design and offers various illumination and observation methods to accommodate different sample types and research needs.
Sourced in United States, United Kingdom, Germany, China, France, Canada, Japan, Australia, Switzerland, Italy, Israel, Belgium, Austria, Spain, Brazil, Netherlands, Gabon, Denmark, Poland, Ireland, New Zealand, Sweden, Argentina, India, Macao, Uruguay, Portugal, Holy See (Vatican City State), Czechia, Singapore, Panama, Thailand, Moldova, Republic of, Finland, Morocco
Penicillin is a type of antibiotic used in laboratory settings. It is a broad-spectrum antimicrobial agent effective against a variety of bacteria. Penicillin functions by disrupting the bacterial cell wall, leading to cell death.
Sourced in United States, United Kingdom, Germany, China, France, Canada, Australia, Japan, Switzerland, Italy, Belgium, Israel, Austria, Spain, Netherlands, Poland, Brazil, Denmark, Argentina, Sweden, New Zealand, Ireland, India, Gabon, Macao, Portugal, Czechia, Singapore, Norway, Thailand, Uruguay, Moldova, Republic of, Finland, Panama
Streptomycin is a broad-spectrum antibiotic used in laboratory settings. It functions as a protein synthesis inhibitor, targeting the 30S subunit of bacterial ribosomes, which plays a crucial role in the translation of genetic information into proteins. Streptomycin is commonly used in microbiological research and applications that require selective inhibition of bacterial growth.
Sourced in United States, China, United Kingdom, Germany, France, Canada, Japan, Australia, Italy, Switzerland, Belgium, New Zealand, Austria, Netherlands, Israel, Sweden, Denmark, India, Ireland, Spain, Brazil, Norway, Argentina, Macao, Poland, Holy See (Vatican City State), Mexico, Hong Kong, Portugal, Cameroon
RPMI 1640 is a common cell culture medium used for the in vitro cultivation of a variety of cells, including human and animal cells. It provides a balanced salt solution and a source of essential nutrients and growth factors to support cell growth and proliferation.

More about "Kidney Glomerulus"

The kidney glomerulus, also known as the renal glomerulus, is the fundamental filtration unit of the kidneys.
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.