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Pramlintide acetate is an artificially synthesized peptide compound. The color ranges from white to almost white, which is determined by the physical state of its solid powder. The molecular formula is C173H273N51O56S2, CAS 196078-30-5, with a molecular weight of approximately 3951.41000. Soluble in acetic acid (a small amount) and DMSO (a small amount). In water, its solubility is relatively low. It is a peptide compound, and its viscosity may be related to its molecular weight and intermolecular interactions. Under physiological conditions, its viscosity may affect its distribution and pharmacokinetic properties in vivo. Surface tension is the attraction between surface molecules when a substance comes into contact with a gas or liquid. For peptide compounds, their surface tension may be related to molecular polarity and solvent interactions. Thermal stability is related to its chemical structure and environmental conditions. At high temperatures, some chemical bonds may break or compounds may undergo degradation.
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Customized Bottle Caps And Corks:
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Chemical Formula |
C98H138N24O33 |
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Exact Mass |
2179 |
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Molecular Weight |
2180 |
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m/z |
2180 (100.0%), 2179 (94.3%), 2181 (40.3%), 2182 (17.5%), 2181 (12.1%), 2181 (8.9%), 2180 (8.4%), 2182 (6.8%), 2181 (6.4%), 2182 (4.7%), 2183 (4.6%), 2183 (2.7%), 2181 (1.6%), 2180 (1.5%), 2181 (1.3%), 2180 (1.2%), 2184 (1.2%) |
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Elemental Analysis |
C, 53.99; H, 6.38; N, 15.42; O, 24.22 |
Pramlintide acetate is a synthetic polypeptide compound, which is mainly used to treat diabetes and related complications.
The application of insulin in the treatment of diabetes
Type 1 diabetes is due to the destruction of pancreatic islet beta cells, resulting in absolute insulin deficiency. Patients need to rely on exogenous insulin therapy, but insulin therapy often leads to fluctuations in postprandial hyperglycemia and pre meal hypoglycemia. Pramlintide acetate, as an adjuvant therapy for insulin, can effectively improve this condition. Many randomized controlled trials have shown that in patients with type 1 diabetes, the combination of Pramlintide acetate and insulin can significantly reduce postprandial blood glucose levels, reduce blood glucose fluctuations, and do not increase the risk of hypoglycemia.
For example, a study showed that the combination of Pramlintide acetate can reduce postprandial blood glucose peak by about 50 mg/dL and significantly lower HbA1c levels compared to using insulin alone. The starting dose of Pramlintide acetate is usually 15 μ g, administered before meals, and gradually adjusted to 30 μ g or 60 μ g depending on blood glucose control.
Treatment of type 2 diabetes
Type 2 diabetes is a relative insulin deficiency caused by insulin resistance and pancreatic beta cell dysfunction. Patients usually start with lifestyle interventions and oral hypoglycemic medication treatment, but as the condition progresses, insulin therapy may be necessary. Pramlintide acetate is also suitable for insulin adjuvant treatment of type 2 diabetes patients. In type 2 diabetes patients, Pramlintide acetate can significantly reduce HbA1c level, reduce weight gain, and improve blood lipid profile.
A 26 week multicenter, randomized, double-blind, placebo-controlled trial showed that compared to the placebo group, patients in the Pramlintide acetate treatment group had a 0.6% reduction in HbA1c levels, a 1.6 kg weight loss, and a significant decrease in triglyceride levels. Similar to type 1 diabetes patients, type 2 diabetes patients should also pay attention to the risk of hypoglycemia when using Pramlintide acetate, but the overall safety is good. Common adverse reactions include gastrointestinal reactions such as nausea, vomiting, and diarrhea, but they are usually mild to moderate and alleviate with prolonged treatment time.
Application in Basic Research
It regulates blood sugar levels by delaying gastric emptying, inhibiting glucagon secretion, and increasing satiety. In basic research, Pramlintide acetate can be used as a tool drug to study the molecular mechanisms and signaling pathways of blood glucose regulation. For example, to observe the effects of Pramlintide acetate on islet beta cell function, insulin sensitivity and hepatic glucose output will help us to understand the pathogenesis and treatment strategies of diabetes. It can also increase satiety, reduce food intake, and help with weight management. In basic research, Pramlintide acetate can be used to study the neuroendocrine mechanisms of weight regulation.
For example, observing the effects of Pramlintide acetate on the hypothalamic appetite regulation center, leptin signaling pathway, and adipose tissue metabolism can provide new ideas for the treatment of obesity. Pramlintide acetate can improve blood lipid profile, reduce triglyceride levels, and increase high-density lipoprotein cholesterol levels. In basic research, Pramlintide acetate can be used to study the molecular mechanisms and regulatory pathways of lipid metabolism. For example, observing the effects of Pramlintide acetate on lipoprotein metabolism, cholesterol reverse transport, and adipocyte differentiation can help to gain a deeper understanding of the pathogenesis and treatment strategies of metabolic syndrome.
Application in neuroprotective research
In basic research, Pramlintide acetate can be used to study the pathogenesis and treatment strategies of neurodegenerative diseases. For example, observing the effects of Pramlintide acetate on neuronal apoptosis, nerve regeneration, synaptic plasticity, and neuroinflammation can provide new drug targets for the treatment of neurodegenerative diseases. It may have neuroprotective effects, reducing neuronal apoptosis and promoting nerve regeneration. In basic research, Pramlintide acetate can be used to study the molecular mechanisms and regulatory pathways of nerve injury repair.
For example, observing the effects of Pramlintide acetate on neural stem cell differentiation, axonal growth, myelin formation, and neural function recovery can provide new ideas for the treatment of neurological disorders such as spinal cord injury and stroke. In animal models, amygdalin analogs can improve cognitive function and learning and memory abilities. In basic research, Pramlintide acetate can be used to investigate the neural mechanisms and signaling pathways underlying cognitive function improvement. For example, observing the effects of Pramlintide acetate on neuronal plasticity, synaptic transmission, neurotransmitter release, and neuroinflammation in the hippocampus can provide new drug targets for the treatment of cognitive dysfunction.
The mechanism of action of acetate planin mainly involves the following aspects:
Inhibition of glucagon secretion: Acetic acid praline peptide can inhibit the secretion of glucagon, thereby reducing hepatic glucose output and lowering blood sugar levels.
Promoting insulin secretion: Acetic acid propranolol can stimulate insulin secretion, enhance insulin biological activity, and thus improve the body's utilization efficiency of glucose.
Inhibition of gastric emptying: Propranolol acetate can slow down the rate of gastric emptying, thereby prolonging the residence time of food in the stomach and slowing down the absorption rate of glucose.
Appetite suppression: Propranolol acetate can suppress appetite, reduce food intake, and thus lower body weight and blood sugar levels.
Pranin acetate is a drug with many uses. It is not only used to treat diabetes and related complications, but also has antioxidant, anti-inflammatory and immunomodulatory effects. Its mechanism of action involves multiple aspects such as inhibiting glucagon secretion, promoting insulin secretion, inhibiting gastric emptying and appetite.
Acetylpristinamycin IIA is a peptide like antibiotic commonly used to treat infectious diseases. Its structure is complex, containing two polycyclic aromatic compounds and a peptide chain containing 12 amino acids. Due to the involvement of professional fields, the laboratory synthesis method of Pramlintide acetate requires precise technical and equipment support. The following is only a brief introduction to the synthesis route.
The laboratory synthesis of acetate planin can be divided into two parts, namely the synthesis of polycyclic aromatic compounds and the synthesis of peptide chains. Among them, polycyclic aromatic compounds are mainly obtained through natural product extraction or semi synthetic methods, while peptide chains can be obtained through chemical synthesis or genetic engineering techniques.
The synthesis of acetate planin involves multiple chemical reaction steps, and the following are examples of chemical equations for some of the key steps:
1. Synthesis of polycyclic aromatic compounds:
-Sodium hydroxide decomposes the precursor:
C30H31NO3+NaOH → C13H12O2+C17H19NO2+NaNO3+H2O
-Acetone Acetylation Reaction:
C13H12O2+CH3COCH3 → C15H14O4
-Dimethyl carbonate reduction:
C15H14O4+CH3OCOCl+FeCl2 → C30H34O8+FeCl3+CH3OH+HCl
2. Peptide chain synthesis (chemical synthesis method):
-Coupling of L-alanine with 2-Cl-Z-L-Ser (tBu) - OH:
H2N(CH2)2COOH + ClZSer(tBu)-OH → H2N(CH2)2CO-ZSer(tBu)-OH + H2O
-Peptide chain extension:
H2N(CH2)2CO-ZSer(tBu)-OH + H-Ala(tBu)-OH → H2N(CH2)2CO-ZSer(tBu)-Ala(tBu)-OH + H2O
-Remove protective base:
H2N(CH2)2CO-ZSer(tBu)-Ala(tBu)-OH + HF → H2N(CH2)2CO-Ser-Ala-OH + C4H10 + HF
-Peptide chains bind to acid groups of polycyclic aromatic compounds:
H2N(CH2)2CO-Ser-Ala-OH + C30H34O8 → C32H38N2O9
Synthesis of polycyclic aromatic compounds
At present, the polycyclic aromatic compounds of acetate planin peptide are mainly obtained through natural product extraction or semi synthetic methods. The specific steps are as follows:
(1) Natural product extraction method: Extract fermentation broth or bacterial bodies containing the compound from microorganisms such as Streptomyces pristinaespiralis that produce acetaminophen.
(2) Semi synthetic method: The precursor of acetic acid planin extracted from microorganisms is converted into acetic acid planin through a series of chemical reactions. The main steps include:
-The precursor is decomposed by sodium hydroxide to obtain polycyclic aromatic compounds.
-Acetylation reaction of polycyclic aromatic compounds with acetone yields intermediate products in the form of acetate.
-The intermediate product was reduced with dimethyl carbonate and ferrous chloride to obtain procyanidin acetate.
Synthetic peptide chains
The peptide chain of acetate planin is composed of 12 amino acids and can be obtained through chemical synthesis or genetic engineering techniques.
(1) Chemical synthesis method: The Fmoc solid-phase synthesis method was used to synthesize the acetate planin peptide chain. The specific steps include:
-Firstly, L-alanine at the C-terminus will be coupled with 2-Cl-Z-L-Ser (tBu)-OH, and then gradually extended towards the N-terminus until a complete acetate planin peptide chain is synthesized.
-Remove protective groups through reagents such as hydrofluoric acid or trifluoroacetic acid to obtain exposed peptide chains.
-Bind the exposed peptide chain with an acid group in a polycyclic aromatic compound to obtain acetate planin peptide.
(2) Genetic engineering technology: By inserting the gene of acetate planin into an appropriate expression vector and using microorganisms such as Escherichia coli for expression and purification, a large amount of acetate planin can be obtained. This method can not only increase production, but also reduce pollution and costs.
Frequently Asked Questions
How much does pramlintide lower A1C?
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Pramlintide, a synthetic analog of amylin, reduces 2-hour postprandial blood glucose between 3.4 and 5 mmol/L, reduces A1C by 0.2% to 0.7% and has no effect on fasting glucose levels.
What is the peak time for pramlintide?
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Although marketed insulin formulations generally demonstrate a peak action in 60–90 minutes, pramlintide elicits its peak concentration at around 20–30 minutes after administration.
Can pramlintide cause weight loss?
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Pramlintide at 120 μg t.i.d. and 360 μg b.i.d. and t.i.d. achieved statistically significant reductions in absolute body weight versus placebo at month 4 (evaluable and ITT-LOCF P < 0.05). Within these arms, 44–47% of subjects (evaluable) achieved ≥5% weight loss versus 28% of placebo-administered subjects.
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