Histamine is located in mast cells, endocrine cells of the gut, blood cells and in some cells of the peripheral and central nervous system. Histamine is a potent vasodilator when secreted by mast cells found in various tissues as a result of allergic hypersensitivity or inflammation. In the central nervous system, Histamine is putative neurotransmitter. In the brain, its highest content has been found in the hypothalamus and in certain areas of the mesencephalon. The Histamine antiserum has a sensitivity level capable of detecting the low level Histamine contents of the brain. The Histamine antiserum was quality control tested using standard immunohistochemical methods. The antiserum demonstrates strongly positive labeling of rat hypothalamus using indirect immunofluorescent and biotin/avidin-HRP techniques. Recommended primary dilutions are 1/500 - 1/1000 in PBS/0.3% Triton X-100 Cy3 Technique and 1/4000-1/6000 in PBS/0.3% Triton X-100 biotin/avidin-HRP Technique . All staining is blocked by preabsorption of the antiserum with Histamine conjugate. Cross reactivity experiments indicate no cross reactivity with L-histidine or L-histidine containing peptides such as LH-RH.
The antibody has a proven strong immunofluorescent staining at a 1/200-1/400 dilution, and a 4+ Biotin-Streptavidin/HRP staining at a 1/500-1/1000 dilution, in rat adrenal medulla and rat stomach.
The CCK-8 Antibody was raised to sulphated CCK-8 (26-33) coupled to bovine thyroglobulin with glutaraldehyde. The antibody has a proven strong indirect immunofluorescent staining at a 1/100-1/200 dilution and a strong Biotin-Streptavidin/HRP immunostaining at a 1/500-1/1000 dilution in rat hypothalamus and spinal cord. The specificity of the antiserum was examined by soluble pre-adsorption with the peptides in question at a final concentration of 10-6M CCK-8 immunolabeling was completely abolished by pre-adsorption with CCK-8, gastrin 17 and gastrin 34. Pre-adsorption with the following peptides resulted in no reduction of immunostaining: α-CGRP, -CGRP, neurotensin, somatostatin, substance P, leucine enkephalin, methionine enkephalin, VIP, neuropeptide Y, gastric inhibitory polypeptide, bombesin, glucagon, peptide YY, and FMRF amide.
The Glucagon Antibody was raised to glucagon coupled to bovine thyroglobulin with glutaraldehyde. The antibody has a proven strong Biotin-Streptavidin/HRP immunostaining at a 1/500-1/1000 dilution in human pancreatic islets. Staining is completely eliminated by pretreatment of the diluted antibody in an excess of glucagon. Preadsorption of the diluted antibody with an excess of the following substances had no effect on glucagon labeling: secretin, vasoactive intestinal peptide, peptide histidine isoleucine-27, gastric inhibitory polypeptide, rat and human growth hormone releasing hormone and somatostatin.
The ACTH Antibody was raised to ACTH (1-39) purified from porcine pituitary. The antibody produces a maximum fluorescein staining at a 1/100 - 1/200 dilution and a 4+ biotin-streptavidin/HRP staining at a 1/500 - 1/1000 dilution in rat anterior/intermediate pituitary. Optimal dilution will vary depending upon fixation, labeling technique and/or detection system; therefore, a dilution series is recommended. The recommened dilution series are 1/100-1/200 in PBS/0.3% Triton X-100 - FITC Technique and 1/500-1/1000 in PBS/0.3% Triton X-100 - Bn-SA/HRP Technique. Staining is completely eliminated by pretreatment of the diluted antibody with 100 µg/mL of ACTH.
The Substance P antiserum was quality control tested using standard immunohistochemical methods. The antiserum demonstrates strongly positive labeling of rat substantia nigra and spinal cord using biotin/avidin-HRP techniques. Recommended primary dilutions are 1/500-1/1000 in PBS/0.3% Triton X-100 - Cy3 Fluorchrome and 1/6000-1/8000 in PBS/0.3% Triton X-100 - biotin/avidin-HRP Technique. The specificity of the antiserum for Substance P was demonstrated using soluble pre-adsorption with the peptides in question at a final concentration of 10 µg of peptide per mL of diluted antiserum. Substance P immunolabeling was completely abolished by pre-adsorption with Substance P. Pre-adsorption with the following peptides resulted in no reduction of immunostaining: neurokinin A, neurokinin B, somatostatin and neuropeptide K.
The Insulin antiserum was quality control tested using standard immunohistochemical methods. The antiserum demonstrates strongly positive labeling of rat pancreatic beta cells using indirect immunofluorescent and biotin/avidin-HRP techniques. Recommended primary dilutions for these methods are 1/500-1/1000 in PBS/0.3% Triton X-100 - Cy3 Technique and 1/3000-1/5000 in PBS/0.3% Triton X-100 - biotin/avidin-HRP Technique. Immuostaining is completely abolished by soluble pre-adsorption with bovine insulin at 10 µg per mL of diluted antiserum.
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