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|    sci.chem    |    Chemistry and related sciences    |    55,615 messages    |
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|    Message 55,303 of 55,615    |
|    Treon Verdery to All    |
|    Nasal liposomes,    |
|    02 Oct 22 08:16:29    |
      From: treon3verdery@gmail.com              liposome formulations showed a mean diameter in the range of 175 nm to 219 nm       with polydispersity index lower than 0.22, a lightly negative zeta potential       and excellent encapsulation efficiency. Moreover, along with good mucoadhesive       properties,        multifunctional liposomes showed a markedly increase in tacrine permeability,       which can be related to liposome fusion               with cellular membrane,                            C-Pc liposomes were more effectively taken up by Neuro2a cells than free C-Pc       and were biocompatible, maintaining the anti-oxidative properties of C-Pc.       When optimal C-Pc liposomes were administered to middle cerebral artery       occlusion (MCAO) rats 2 h        after onset, infarct sizes were smaller and behavioral activities improved       compared with the same metrics in free C-Pc-treated rats. Liposomal delivery       still reduced infarct sizes and improved behavioral activity 6 h after onset,       whereas free C-Pc did        not.                            Intranasal liposomes had a longer half-life in the brain than intranasally or       orally administered free drug                            Piperine is an antidepressant works better as a snortable liposome,       “Antidepressant and cognitive effects of piperine-en- capsulated liposomes       (PL) were investigated in male Wistar rats. Oral piperine (5 mg/kg body       weight/day) and intranasal PL (7.2 μ       g/day) were randomly as-signed to daily administer for 14 days to rats which       were subjected to forced swimming, Morris water maze and spontaneous motor       behavior tests. PL sig-nificantly exhibited anti-depression like activity and       cognitive enhancing        effects, in comparison to the con-trol groups after the first dose (p < 0.01)       and the ef-fects could be maintained throughout the period of study.       Quantitative analysis of the brain homogenates by HPLC indicated that       piperine, delivered either orally or        nasally, distributed to the hippocampus at a higher extent than the cortex and       that the time to peak concentration of nasal PL was shorter than for the oral       piperine. Intranasal PL was, thus, potential in delivery of piperine, at a low       dose, to exert its        an-tidepressant and cognitive enhancing activities.”               siRNA drugs can be administered with liposomes, “ntranasal delivery of the       siRNA targeting Beclin1 significantly depleted the target protein expression       levels in brain tissues with no evidence of toxicity.”                            we developed a nose-to-brain delivery system combined with cell-penetrating       peptide (CPP), Cell-Penetrating Peptides (CPPs), also known as protein       transduction domains (PTDs), membrane translocating sequences (MTSs), and       Trojan peptides are short        peptides (≤40 amino acids), with the ability to gain access to the interior       of almost any cell. They are highly cationic and usually rich in arginine and       lysine amino acids. They have the exceptional property of carrying into the       cells a wide variety        of covalently and noncovalently conjugated cargoes such as proteins,       oligonucleotides, and even 200 nm liposomes.                            melatonin antidepressants, mood elevators exist, “Agomelatine is a       structural analog of melatonin”, it is possible that like tyhe pineal       peptide AEDG causes greater longevity molecular variations of these mood       improving drus could be simulataneously        longevizing and mood improving, “agomelatine. Agomelatine is a melatonergic       agonist and a 5HT2c antagonist (i.e., it has a unique mechanism of action).       The melatonergic function appears to improve sleep patterns, whereas the       serotonergic antagonism        results in the release of norepinephrine and dopamine.”                            Previously described is finding the genetics of having good dreams, I favor       making the genetics of having good dreams part of the human germline, also,       amount persons above the 99th percentile of longevity they could find those at       the 99% of having        actively good dreams and an absence of dreams the person would prefer to have       skipped, this is a guide to finding the genetics of more beneficial sleep, it       may even be possible that there are those at the 99th percentile of longevity       who dream twice as        much as others, dreaming good dreams twice as often is beneficial to humans       and is beneficial to make a part of the human germline                            g (like IQ) gene “klotho-enhanced mice performed better on a variety of       learning and memory tests, regardless of age. In one test, the mice remembered       the location of a hidden target in a maze better, which allowed them to find       it twice as fast as        control mice.”              --- SoupGate-Win32 v1.05        * Origin: you cannot sedate... all the things you hate (1:229/2)    |
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