Aviva Systems Elisa

Arginine ELISA Kit (OKCD02224)

OKCD02224 96 Wells
EUR 949
Description: Description of target: ;Species reactivity: Pan-Species;Application: ;Assay info: Assay Methodology: Competitive Inhibition Immunoassay;Sensitivity: 0.51 ug/mL

Aviva Systems Biology Laboratories manufactures the aviva systems elisa reagents distributed by Genprice. The Aviva Systems Elisa reagent is RUO (Research Use Only) to test human serum or cell culture lab samples. To purchase these products, for the MSDS, Data Sheet, protocol, storage conditions/temperature or for the concentration, please contact Aviva Systems Biology. Other Aviva products are available in stock. Specificity: Aviva Category: Systems Group: Elisa

Cholylglycine ELISA Kit (OKEH02529)

96 Wells
EUR 727
Description: Description of target: erum Cholygllycine (Cholygllycine, CG) is a combination of secondary bile acids with glycine conjugated bile acids, in liver cells, cholesterol, after its complex enzymatic reaction, turn into the primary bile acid. Cholic acid (CA) and chenodeoxycholic acid (the CD-CA). Bile acid steroid nucleus three hydroxyl groups (C3, C7, C12), the side chain hydroxyl at the end of the peptide bond and glycine combined with a molecular weight of 462u. CG normal metabolic pathways of the intestine - liver circulation, CG synthesized by hepatocytes, bile canaliculi, bile duct discharged into the gall bladder, along with the bile into the duodenum to help digestion of food. 95% of bile acid reabsorption in the distal ileum, come back to the liver via the portal vein, and uptake by the liver cells to re-use. Exist in the form of protein binding in serum, the total amount of overflow into the systemic circulation is less than 1%. Under normal circumstances, bile acid content in the peripheral blood, leaving little room for normal adults, whether fasting or postprandial serum CG concentration stabilized at a low level. When liver cells are damaged, the liver cell uptake CG capacity decreased, resulting in increased CG content in the blood; cholestasis, liver excretion of bile acids that barriers to reflux of blood circulation increased CG content, but also to the blood CG levels increased. Therefore, the determination of serum glycocholic acid (SCG) by ELISA method is a sensitive indicator to evaluate the function of liver cells and their hepatobiliary material circulation. Normal serum Cholygllycine: 1.3 ± 0.8mg / L, range 0.4 to 2.98mg / L, and the low limit of the hepatitis diagnosis <3.18mg / L ;Species reactivity: All;Application: ;Assay info: Assay Methodology: Quantitative Competitive ELISA;Sensitivity: 0.5 ng/mL

DHEA ELISA Kit (OKEH02530)

96 Wells
EUR 662
Description: Description of target: 5-Dehydroepiandrosterone (5-DHEA) is a 19-carbon endogenous steroid hormone. It is the major secretory steroidal product of the adrenal glands and is also produced by the gonads and the brain. DHEA is the most abundant circulating steroid in humans. DHEA has been implicated in a broad range of biological effects in humans and other mammals. It acts on the androgen receptor both directly and through its metabolites, which include androstenediol and androstenedione, which can undergo further conversion to produce the androgen testosterone and the estrogens, including estrone, estradiol, and estriol. DHEA is also a potent sigma-1 agonist. It is considered a neurosteroid. ;Species reactivity: All;Application: ;Assay info: Assay Methodology: Quantitative Competitive ELISA;Sensitivity: 0.091 ng/mL

Dihydrotestosterone ELISA Kit (OKEH02531)

96 Wells
EUR 727
Description: Description of target: Dihydrotestosterone (5alpha-Dihydrotestosterone, commonly abbreviated to DHT) is an androgen or male sex hormone. The enzyme 5alpha-reductase synthesises DHT in the prostate, testes, hair follicles, and adrenal glands. This enzyme reduces the 4,5 double-bond of the hormone testosterone. ;Species reactivity: All;Application: ;Assay info: Assay Methodology: Quantitative Competitive ELISA;Sensitivity: 0.058 ng/mL

Thyroxine ELISA Kit (OKEH02532)

96 Wells
EUR 361
Description: Description of target: Thyroxine, or 3,5,3',5'-tetraiodothyronine (often abbreviated as T4), a form of thyroid hormones, is the major hormone secreted by the follicular cells of the thyroid gland. Thyroxine is synthesized via the iodination and covalent bonding of the phenyl portions of tyrosine residues found in an initial peptide, thyroglobulin, which is secreted into thyroid granules. These iodinated diphenyl compounds are cleaved from their peptide backbone upon being stimulated by thyroid-stimulating hormone.;Species reactivity: All;Application: ;Assay info: Assay Methodology: Quantitative Competitive ELISA;Sensitivity: 0.0975 ng/mL

Triiodothyronine ELISA Kit (OKEH02533)

96 Wells
EUR 492
Description: Description of target: The L-triiodothyronine (T3, liothyronine) thyroid hormone is normally synthesized and secreted by the thyroid gland in much smaller quantities than L-tetraiodothyronine (T4, levothyroxine, L-thyroxine). Most T3 is derived from peripheral monodeiodination of T4 at the 5 position of the outer ring of the iodothyronine nucleus. The hormone finally delivered and used by the tissues is mainly T3.;Species reactivity: All;Application: ;Assay info: Assay Methodology: Quantitative Competitive ELISA;Sensitivity: 35 pg/mL

Estriol ELISA Kit (OKEH02535)

96 Wells
EUR 727
Description: Description of target: Estriol (also oestriol) is one of the three main estrogens produced by the human body. Estriol (E3) is only produced in significant amounts during pregnancy as it is made by the placenta from 16-Hydroxydehydroepiandrosterone sulfate (16-OH DHEAS), an androgen steroid made in the fetal liver and adrenal glands. The human placenta produces pregnenolone and progesterone from circulating cholesterol. Pregnenolone is converted in the fetal adrenal gland into dehydroepiandrosterone (DHEA), a C19 steroid, then subsequently sulfonated to dehydroepiandrosterone sulfate (DHEAS). DHEAS is converted to 16-OH DHEAS in the fetal liver. The placenta converts 16-OH DHEAS to estriol, and is the predominant site of estriol synthesis.;Species reactivity: All;Application: ;Assay info: Assay Methodology: Quantitative Competitive ELISA;Sensitivity: 1.34 ng/mL

Androstenedione ELISA Kit (OKEH02536)

96 Wells
EUR 727
Description: Description of target: Androstenedione (also known as 4-androstenedione and 17-ketoestosterone) is a 19-carbon steroid hormone produced in the adrenal glands and the gonads as an intermediate step in the biochemical pathway that produces the androgen testosterone and the estrogens estrone and estradiol. Androstenedione is the common precursor of male and female sex hormones. Some androstenedione is also secreted into the plasma, and may be converted in peripheral tissues to testosterone and estrogens. ;Species reactivity: All;Application: ;Assay info: Assay Methodology: Quantitative Competitive ELISA;Sensitivity: 0.078 ng/mL

Elisa information

Calcitriol ELISA Kit (OKEH02542)

OKEH02542 96 Wells
EUR 857
Description: Description of target: Calcitriol, also called 1,25-dihydroxycholecalciferol or 1,25-dihydroxyvitamin D3, is the hormonally active form of vitamin D with three hydroxyl groups (abbreviated 1,25-(OH)2D3 or simply 1,25(OH)2D). It increases the level of calcium (Ca2+) in the blood by (1) increasing the uptake of calcium from the gut into the blood, (2) decreasing the transfer of calcium from blood to the urine by the kidney, and (3) increasing the release of calcium into the blood from bone. Calcitriol is produced in the cells of the proximal tubule of the nephron in the kidneys by the action of 25-hydroxyvitamin D3 1-alpha-hydroxylase, a mitochondrial oxygenase and an enzyme which catalyzes the hydroxylation of 25-hydroxycholecalciferol (calcifediol). The activity of the enzyme is stimulated by PTH. The reaction is an important control point in Ca2+ homeostasis. The production of calcitriol is also increased by prolactin, a hormone which stimulates lactogenesis (the formation of breast milk), a process which requires large amounts of calcium. It is decreased by high levels of serum phosphate and by an increase in the production of the hormone FGF-23 by osteocyte cells in bone.;Species reactivity: All;Application: ;Assay info: Assay Methodology: Quantitative Competitive ELISA;Sensitivity: 3.6 pg/mL

PAFA ELISA Kit (OKEH02543)

OKEH02543 96 Wells
EUR 727
Description: Description of target: It is an important mediator of bronchoconstriction. It causes platelets to aggregate and blood vessels to dilate. Thus, it is important to the process of hemostasis. At a concentration of 1E-12 mol/L, PAF causes life threatening inflammation of the airways to induce asthma like symptoms. Toxins such as fragments of destroyed bacteria induce the synthesis of PAF, which causes a drop in blood pressure and reduced volume of blood pumped by the heart, which leads to shock and possibly death. Platelet-activating factor, also known as a PAF, PAF-acether or AGEPC (acetyl-glyceryl-ether-phosphorylcholine) is a potent phospholipid activator and mediator of many leukocyte functions, including platelet aggregation and degranulation, inflammation, and anaphylaxis. It is also involved in changes to vascular permeability, the oxidative burst, chemotaxis of leukocytes, as well as augmentation of arachidonic acid metabolism in phagocytes. It is produced in response to specific stimuli by a variety of cell types, including neutrophils, basophils, injured tissue, monocytes/macrophages, platelets, and endothelial cells.;Species reactivity: All;Application: ;Assay info: Assay Methodology: Quantitative Competitive ELISA;Sensitivity: 0.09 ng/mL

Corticosterone ELISA Kit (OKEH02545)

OKEH02545 96 Wells
EUR 779
Description: Description of target: In many species, including amphibians, reptiles, rodents and birds, corticosterone is a main glucocorticoid, involved in regulation of fuel, immune reactions, and stress responses. However, in humans, corticosterone is produced primarily in the zona fasciculata of the adrenal cortex. It has only weak glucocorticoid and mineralocorticoid potencies in humans and is important mainly as an intermediate in the steroidogenic pathway from pregnenolone to aldosterone. Corticosterone is converted to aldosterone by aldosterone synthase, found only in the mitochondria of glomerulosa cells. Glomerulosa cells are found in the Zona glomerulosa, which is the most superficial region of endocrine cells in the adrenal cortex. Corticosterone (CORT) is a 21-carbon steroid hormone of the corticosteroid type produced in the cortex of the adrenal glands. ;Species reactivity: All;Application: ;Assay info: Assay Methodology: Quantitative Competitive ELISA;Sensitivity: 1.9 ng/mL

cGMP ELISA Kit (OKEH02546)

OKEH02546 96 Wells
EUR 727
Description: Description of target: Cyclic guanosine monophosphate (cGMP) is a cyclic nucleotide derived from guanosine triphosphate (GTP). cGMP acts as a second messenger much like cyclic AMP. Its most likely mechanism of action is activation of intracellular protein kinases in response to the binding of membrane-impermeable peptide hormones to the external cell surface. Guanylate cyclase (GC) catalyzes cGMP synthesis. This enzyme converts GTP to cGMP. In turn, peptide hormones such as the atrial natriuretic factor activate membrane-bound GC, while soluble GC is typically activated by nitric oxide to stimulate cGMP synthesis.;Species reactivity: All;Application: ;Assay info: Assay Methodology: Quantitative Competitive ELISA;Sensitivity: 5.8 pg/mL

Malondialdehyde ELISA Kit (OKEH02548)

OKEH02548 96 Wells
EUR 844
Description: Description of target: Malondialdehyde reacts with deoxyadenosine and deoxyguanosine in DNA, forming DNA adducts, the primary one being M1G, which is mutagenic. The guanidine group of arginine residues condense with MDA to give 2-aminopyrimidines. Malondialdehyde is the organic compound with the formula CH2(CHO)2. The structure of this species is more complex than this formula suggests. This reactive species occurs naturally and is a marker for oxidative stress.;Species reactivity: All;Application: ;Assay info: Assay Methodology: Quantitative Competitive ELISA;Sensitivity: 0.088nmol/mL

Ciclosporin ELISA Kit (OKEH02549)

OKEH02549 96 Wells
EUR 779
Description: Description of target: Ciclosporin (INN/BAN), cyclosporine (USAN), cyclosporin (former BAN), or cyclosporin A is an immunosuppressant drug widely used in organ transplantation to prevent rejection. It reduces the activity of the immune system by interfering with the activity of T cells. ;Species reactivity: All;Application: ;Assay info: Assay Methodology: Quantitative Competitive ELISA;Sensitivity: 1.28 ng/mL

Hydroxyproline ELISA Kit (OKEH02551)

OKEH02551 96 Wells
EUR 779
Description: Description of target: Hydroxyproline is a major component of the protein collagen. Hydroxyproline and proline play key roles for collagen stability. They permit the sharp twisting of the collagen helix. Hydroxyproline is found in few proteins other than collagen. For this reason, hydroxyproline content has been used as an indicator to determine collagen and/or gelatin amount. Hydroxyproline is produced by hydroxylation of the amino acid proline by the enzyme prolyl hydroxylase following protein synthesis (as a post-translational modification). The enzyme catalysed reaction takes place in the lumen of the endoplasmic reticulum. Although it is not directly incorporated into proteins, hydroxyproline comprises roughly 4% of all amino acids found in animal tissue, more than seven amino acids which are directly incorporated.;Species reactivity: All;Application: ;Assay info: Assay Methodology: Quantitative Competitive ELISA;Sensitivity: 31.25nmol/L

8OHDG ELISA Kit (OKEH02553)

OKEH02553 96 Wells
EUR 779
Description: Description of target: 8-Oxo-2'-deoxyguanosine (8-oxo-dG) is an oxidized derivative of deoxyguanosine. 8-oxo-dG is one of the major products of DNA oxidation. Concentrations of 8-oxo-dG within a cell are a measurement of oxidative stress. ;Species reactivity: All;Application: ;Assay info: Assay Methodology: Quantitative Competitive ELISA;Sensitivity: 0.27 ng/mL

Prostacyclin ELISA Kit (OKEH02555)

OKEH02555 96 Wells
EUR 779
Description: Description of target: Prostacyclin (PGI2) chiefly prevents formation of the platelet plug involved in primary hemostasis (a part of blood clot formation). It does this by inhibiting platelet activation. It is also an effective vasodilator. Prostacyclin's interactions in contrast to thromboxane (TXA2), another eicosanoid, strongly suggest a mechanism of cardiovascular homeostasis between the two hormones in relation to vascular damage. Prostacyclin is produced in endothelial cells from prostaglandin H2 (PGH2) by the action of the enzyme prostacyclin synthase. Although prostacyclin is considered an independent mediator, it is called PGI2 (prostaglandin I2) in eicosanoid nomenclature, and is a member of the prostanoids (together with the prostaglandins and thromboxane).;Species reactivity: All;Application: ;Assay info: Assay Methodology: Quantitative Competitive ELISA;Sensitivity: 10 pg/mL

Homocysteine ELISA Kit (OKEH02557)

OKEH02557 96 Wells
EUR 779
Description: Description of target: Homocysteine is a non-protein amino acid with the formula HSCH2CH2CH(NH2)CO2H. It is a homologue of the amino acid cysteine, differing by an additional methylene (-CH2-) group. It is biosynthesized from methionine by the removal of its terminal Cε methyl group. Homocysteine can be recycled into methionine or converted into cysteine with the aid of B-vitamins. While detection of high levels of homocysteine has been linked to cardiovascular disease, lowering homocysteine levels may not improve outcomes.;Species reactivity: All;Application: ;Assay info: Assay Methodology: Quantitative Sandwich ELISA;Sensitivity: 0.38 ng/mL

Serotonin ELISA Kit (OKEH02558)

OKEH02558 96 Wells
EUR 688
Description: Description of target: Serotonin or 5-hydroxytryptamine (5-HT) is a monoamine neurotransmitter. Biochemically derived from tryptophan, serotonin is primarily found in the gastrointestinal (GI) tract, platelets, and in the central nervous system (CNS) of animals including humans. It is popularly thought to be a contributor to feelings of well-being and happiness. Approximately 90% of the human body's total serotonin is located in the enterochromaffin cells in the gut, where it is used to regulate intestinal movements. The remainder is synthesized in serotonergic neurons of the CNS where it has various functions. These include the regulation of mood, appetite, and sleep. Serotonin also has some cognitive functions, including memory and learning. Modulation of serotonin at synapses is thought to be a major action of several classes of pharmacological antidepressants.;Species reactivity: All;Application: ;Assay info: Assay Methodology: Quantitative Competitive ELISA;Sensitivity: 0.35 ng/mL

Endotoxin ELISA Kit (OKEH02559)

OKEH02559 96 Wells
EUR 779
Description: Description of target: Endotoxins are a component of the cell wall of certain bacteria. Bacteria which contain endotoxin are known as gram negative bacteria. The endotoxins are released from the bacteria as they are destroyed and elicit a strong response from the immune system by activating various components of the immune system and inducing cytokine release.;Species reactivity: All;Application: ;Assay info: Assay Methodology: Quantitative Competitive ELISA;Sensitivity: 0.005 EU/mL

Dopamine ELISA Kit (OKEH02560)

OKEH02560 96 Wells
EUR 857
Description: Description of target: In the brain, dopamine functions as a neurotransmitter—a chemical released by neurons (nerve cells) to send signals to other nerve cells. The brain includes several distinct dopamine pathways, one of which plays a major role in reward-motivated behavior. Most types of rewards increase the level of dopamine in the brain, and many addictive drugs increase dopamine neuronal activity. Other brain dopamine pathways are involved in motor control and in controlling the release of various hormones. These pathways and cell groups form a dopamine system which is neuromodulatory._x000D__x000D_Outside the central nervous system, dopamine functions primarily as a local chemical messenger. In blood vessels, it inhibits norepinephrine release and acts as a vasodilator (at normal concentrations); in the kidneys, it increases sodium excretion and urine output; in the pancreas, it reduces insulin production; in the digestive system, it reduces gastrointestinal motility and protects intestinal mucosa; and in the immune system, it reduces the activity of lymphocytes. With the exception of the blood vessels, dopamine in each of these peripheral systems is synthesized locally and exerts its effects near the cells that release it.;Species reactivity: All;Application: ;Assay info: Assay Methodology: Quantitative Competitive ELISA;Sensitivity: 4.1 pg/mL

Epinephrine ELISA Kit (OKEH02561)

OKEH02561 96 Wells
EUR 779
Description: Description of target: Epinephrine (also known as adrenaline) is a hormone and a neurotransmitter. Epinephrine has many functions in the body, regulating heart rate, blood vessel and air passage diameters, and metabolic shifts; epinephrine release is a crucial component of the fight-or-flight response of the sympathetic nervous system. In chemical terms, epinephrine is one of a group of monoamines called the catecholamines. It is produced in some neurons of the central nervous system, and in the chromaffin cells of the adrenal medulla from the amino acids phenylalanine and tyrosine.;Species reactivity: All;Application: ;Assay info: Assay Methodology: Quantitative Competitive ELISA;Sensitivity: 9.9 pg/mL

Deoxypyridinoline ELISA Kit (OKEH02563)

OKEH02563 96 Wells
EUR 727
Description: Description of target: Deoxypyridinoline, also called D-Pyrilinks, Pyrilinks-D, or deoxyPYD, is one of two pyridinium cross-links that provide structural stiffness to type I collagen found in bones. It is excreted unmetabolized in urine and is a specific marker of bone resorption and osteoclastic activity. It is measured in urine tests and is used along with other bone markers such as alkaline phosphatase, osteocalcin, and N-terminal telopeptide to diagnose bone diseases such as postmenopausal osteoporosis, bone metastasis, and Paget's disease, furthermore, it has been useful in monitoring treatments that conatin bone-active agents such as estrogens and bisphosphonates. ;Species reactivity: All;Application: ;Assay info: Assay Methodology: Quantitative Competitive ELISA;Sensitivity: 0.47 ng/mL

GABA ELISA Kit (OKEH02564)

OKEH02564 96 Wells
EUR 857
Description: Description of target: ;Species reactivity: All;Application: ELISA;Assay info: Assay Methodology: Quantitative Competitive ELISA;Sensitivity: 0.45 ng/mL

Noradrenaline ELISA Kit (OKEH02565)

OKEH02565 96 Wells
EUR 857
Description: Description of target: One of the most important functions of Noradrenaline is its role as the neurotransmitter released from the sympathetic neurons affecting the heart. An increase in Noradrenaline from the sympathetic nervous system increases the rate of contractions. When Noradrenaline acts as a drug, it increases blood pressure by increasing vascular tone (tension of vascular smooth muscle) through alpha-adrenergic receptor activation; a reflex bradycardia homeostatic baroreflex is overcome by a compensatory reflex preventing an otherwise inevitable drop in heart rate to maintain blood pressure. Noradrenaline is synthesized from dopamine by dopamine beta-hydroxylase.[8] It is released from the adrenal medulla into the blood as a hormone, and is also a neurotransmitter in the central nervous system and sympathetic nervous system, where it is released from noradrenergic neurons in the locus coeruleus. The actions of norepinephrine are carried out via the binding to adrenergic receptors.;Species reactivity: All;Application: ;Assay info: Assay Methodology: Quantitative Competitive ELISA;Sensitivity: 9.8 pg/mL