This is a working overview of peptidase, written for readers who want more than a one-paragraph summary but less than a textbook.
Reviewed 2025-09-11. Anything still debated is marked as such rather than presented as settled.
Pharmacokinetic data are sparse and largely derived from animal work. After intranasal administration the peptide appears in plasma within minutes, and reported half-lives are short, on the order of minutes to tens of minutes. Degradation proceeds through ordinary proteolytic cleavage into constituent amino acids and smaller fragments. Direct evidence that intact Selank reaches brain tissue in meaningful amounts is limited, and the extent of blood-brain barrier penetration is debated. Some authors argue that fragments, not the parent peptide, carry much of the observed activity.
Published clinical work is concentrated in Russian-language journals and generally involves small samples without independent replication. Systematic reviews in English note the shortage of randomised, placebo-controlled trials and the difficulty of verifying methods from translated reports. Outcome measures vary between studies, which complicates pooling of results. Interest in the compound as a cognitive or anxiolytic agent therefore rests on a thinner evidence base than the volume of citations suggests. Replication in well-powered trials with preregistered endpoints would be needed before firm conclusions about efficacy can be drawn.
Proposed mechanisms centre on the GABAergic system. Animal and tissue studies report changes in GABA-A receptor expression and reduced activity of GABA transaminase, the enzyme that degrades GABA. Effects on monoamine turnover, including serotonin and dopamine pathways, are also described, and a separate line of work links the peptide to increased expression of brain-derived neurotrophic factor in hippocampal tissue. Most of these findings come from rodent models and cell preparations. How the individual observations combine into a single coherent mode of action is not settled.
Peptide bonds are vulnerable to protease attack, and Selank is no exception. Measured half-life in serum is short, on the order of minutes in several reports, which explains why intranasal administration is the common route described in the literature. Absorption across the nasal mucosa partially bypasses first-pass hepatic metabolism. Quantitative data on human bioavailability remain limited and are difficult to compare across studies.
Lyophilised material kept dry at minus 20 degrees Celsius or colder is the most stable form, and suppliers commonly state a shelf life of two years or more under those conditions. Once dissolved, degradation accelerates through hydrolysis and deamidation, particularly at alkaline pH or elevated temperature. Working solutions are usually divided into single-use aliquots to avoid repeated freeze-thaw cycles. The choice of reconstitution solvent affects both stability and the ionic strength of the final preparation.
| Property | Value | Notes |
|---|---|---|
| Primary route studied | Intranasal | Also examined parenterally in animal work |
| Reported plasma half-life | Minutes to tens of minutes | Values vary widely between reports |
| Main model systems | Rodent behavioural and cell assays | Human trials are few and small |
| Principal proposed targets | GABA-A receptor, GABA transaminase | Monoamine and neurotrophic pathways also reported |
| Evidence grade | Preliminary | Limited independent replication |
Development work on the compound began in the 1980s and 1990s at the Institute of Molecular Genetics in Moscow, within the same research programme that produced the peptide Semax. Early investigators sought a tuftsin derivative with improved resistance to enzymatic breakdown and with activity in the central nervous system after peripheral administration. Most of the primary literature from this period was published in Russian, a factor that still shapes how easily the findings can be checked by outside groups.
Naming for this compound is not fully standardised in English sources. The spelling Selanc appears in some transliterations, and catalogue entries may instead list the peptide sequence itself as the identifier. Reference material sometimes groups it with other short synthetic peptides studied for behavioural effects, which can create confusion when citations are compared. Distinguishing the exact sequence from related tuftsin analogues is therefore a practical first step when reviewing any dataset or specification sheet.
Regulatory treatment varies by jurisdiction. In Russia the compound is a registered prescription product, while in the European Union and the United States it is generally handled as a research chemical without a marketing authorization. Suppliers therefore operate outside pharmaceutical oversight, and buyers rely on supplier documentation for purity and identity claims. Chain of custody and third-party testing are the main verification tools. Analysts note that the absence of a pharmacopoeial monograph for research-grade material limits standardization across vendors.
Purity assessment relies mainly on reverse-phase high-performance liquid chromatography with ultraviolet detection. Because the peptide lacks a strong chromophore, detection often uses backbone absorbance near 214 nm. Identity is confirmed by mass spectrometry, typically electrospray ionization or matrix-assisted laser desorption, comparing the measured mass against the expected value. Amino acid analysis can verify composition after acid hydrolysis. Diastereomer content and residual counterions are reported less often, although both can influence biological assays.
Naming conventions place Selank in the same research family as Semax, another Russian-developed peptide investigated for cognitive effects. The two compounds share a lineage but differ in sequence and in the biological systems proposed as their targets. Semax descends from ACTH fragments, whereas Selank descends from tuftsin. Publications sometimes identify Selank by its full peptide sequence or by laboratory codes rather than one uniform trade name. Because replication outside Russia is limited, reports on its properties are best read alongside the study design and the purity of the material tested.
Selank is a synthetic heptapeptide developed in Russia during the 1990s. Researchers at the Institute of Molecular Genetics of the Russian Academy of Sciences designed it as a stabilized analog of tuftsin, a naturally occurring immunomodulatory tetrapeptide. The compound has been studied primarily for its reported anxiolytic and nootropic effects. It remains largely unknown in Western pharmacology and is not approved as a medicine by major regulators such as the FDA or the EMA.
Enzymatic stability motivates the extra three residues at the carboxyl end. Native tuftsin is cleaved quickly by circulating aminopeptidases and carboxypeptidases, which limits its duration of action and its usefulness as a tool compound. Extending the chain with proline-rich segments is a common design tactic because proline constrains the backbone and slows proteolysis. The same Pro-Gly-Pro motif appears in other Russian-developed peptides of the era. Whether the full seven-residue chain is required for activity, or whether it acts mainly as a prodrug releasing tuftsin, remains unresolved.
Selank is a synthetic heptapeptide with the sequence Thr-Lys-Pro-Arg-Pro-Gly-Pro. Its four N-terminal residues reproduce tuftsin, a tetrapeptide fragment of the immunoglobulin heavy chain, while the C-terminal Pro-Gly-Pro extension is a synthetic addition. The peptide has a molecular mass near 752 daltons and carries a net positive charge at physiological pH because of the arginine and lysine side chains. Published indexes list it under the name Selank and the sequence abbreviation TKPRPGP. Solid-phase peptide synthesis is the standard production route for research quantities.
Development took place at the Institute of Molecular Genetics of the Russian Academy of Sciences, where a series of short peptides were designed in the 1980s and 1990s. Selank was selected from variants of tuftsin that showed resistance to plasma peptidases. Russian regulatory approval covers it as an anxiolytic agent given intranasally. Outside that market the compound is normally handled as a research chemical rather than a medicine, and no widely recognised international pharmacopoeial monograph exists. The name Selank is a coined trade designation rather than a systematic chemical name.
== Basic principle == In conventional affinity chromatography, a single chromatography column is loaded with feed material up to the point before target material (product) cannot be retained by the affinity material anymore. The resin with the adsorbed product on it is then washed to remove impurities. Finally, the pure product is eluted with a different buffer. Notably, if too much feed material is loaded onto the column, the product can break through and product is consequently lost. Therefore, it is very important to only partially load the column to maximize the yield.
Experiment D-8 used five dosimeters to measure the radiation in the spacecraft environment. Of particular interest was the South Atlantic Anomaly. Experiment D-9 was an experiment in simple spacecraft navigation where the crew used a sextant to measure their position using the stars. The objective was to investigate the feasibility of using this technique for lunar flights on the Apollo program. Experiments S-5 and S-6 were both photography experiments where they used a 70-millimeter Hasselblad camera to photograph the weather and terrain below them. There were two medical experiments: M-3 and M-4. The first was a bungee cord that the crew used for exercise. They said, after the mission, that this got harder as the mission went on, though this may have been due to a lack of sleep. The second was the phonocardiogram experiment, which had sensors attached to their bodies that measured heartbeat rates, especially during liftoff, EVA, and reentry. There were four engineering experiments:
Facial features indicative of Donohue syndrome include protuberant and low-set ears, flaring nostrils, unusually wide mouth, and widely spaced eyes. Physical features include stunted growth (including during gestation), lack of subcutaneous adipose tissue, muscle atrophy, hirsutism (excessive body hair growth), and dysplasia (nail malformation). Additionally, a condition known as acanthosis nigricans is present in affected individuals, involving patches of skin that darken and thicken to gain a velvet-like appearance. Sex-specific features also include enlarged clitoris and breasts, as well as ovarian cysts in affected females, and enlarged penis in affected males. In the Journal of Pediatric Medicine, Donohue and Uchida described affected sisters whose growth appeared to have ended in the seventh month of gestation. They died before they were four months old. Very early death (or spontaneous abortion) is typical, although affected individuals sometimes live longer than a decade. Endocrine-related abnormalities as a result of insulin receptor malfunction include insulin resistance, hypoglycemia and hyperglycemia (depending on whether or not the individual has eaten) and hyperinsulemia. A much milder form of the disease, in which there is some insulin resistance but normal growth and subcutaneous fat distribution, is also known. It is caused by a less severe mutation of the same gene.
=== Other effects === Progesterone also has a role in skin elasticity and bone strength, in respiration, in nerve tissue and in female sexuality, and the presence of progesterone receptors in certain muscle and fat tissue may hint at a role in sexually dimorphic proportions of those. During pregnancy, progesterone is said to decrease uterine irritability. During pregnancy, progesterone helps to suppress immune responses of the mother to fetal antigens, thus preventing rejection of the fetus. Progesterone raises epidermal growth factor-1 (EGF-1) levels, a factor often used to induce proliferation of stem cells, and used to sustain stem cell cultures. Progesterone increases core temperature (thermogenic function) during ovulation. Progesterone reduces spasm and relaxes smooth muscle. Bronchi are widened and mucus regulated. (PRs are widely present in submucosal tissue.) Progesterone acts as an anti-inflammatory agent and regulates the immune response. Progesterone reduces gallbladder activity. Progesterone normalizes blood clotting and vascular tone, zinc and copper levels, cell oxygen levels, and use of fat stores for energy. Progesterone may affect gum health, increasing risk of gingivitis (gum inflammation). Progesterone appears to prevent endometrial cancer (involving the uterine lining) by regulating the effects of estrogen. Progesterone plays an important role in the signaling of insulin release and pancreatic function, and it may affect the susceptibility to diabetes or gestational diabetes.
=== Recreational use === As of 2021, lidocaine is not listed by the World Anti-Doping Agency as a substance whose use is banned in sport. It is used as an adjuvant, adulterant, and diluent to street drugs such as cocaine and heroin. It is one of the three common ingredients in site enhancement oil used by bodybuilders.
Sources: en.wikipedia.org
Another explanation is that the word hoagie arose in the late 19th to early 20th centuries, among the Italian community in South Philadelphia; at the time "on the hoke" meant that someone was destitute. Deli owners gave away scraps of cheeses and meats in an Italian bread-roll known as a "hokie", but Italian immigrants pronounced it "hoagie". Yet another possible origin of the term, as conveyed by Sociology professor Howard Robboy, is that a man in Philadelphia, Alphonso DePalma, who later opened a sandwich shop there, claimed to have said in 1928, "You have to be a hog to eat one of those." DePalma styled himself as "King of the Hoggies" (and eventually "Hoagies") and at one time had several "hoggie" shops around the city. Shortly after World War II, there were numerous varieties of the term in use throughout Philadelphia. By the 1940s, the spelling "hoagie" dominated less-used variations like "hoogie" and "hoggie". By 1955, restaurants throughout the area were using the term hoagie. Listings in Pittsburgh show hoagies arriving in 1961 and becoming widespread in that city by 1966. Former Philadelphia mayor (and later Pennsylvania governor) Ed Rendell declared the hoagie to be the "Official Sandwich of Philadelphia". However, there are claims that the hoagie was actually a product of nearby Chester, Pennsylvania. DiCostanza's in Boothwyn, Pennsylvania claims that the mother of DiConstanza's owner originated the hoagie in 1925 in Chester.
=== By Dyson === Freeman Dyson at The New York Review of Books (content for subscribers only) "Heretical thoughts about science & society", essay by Freeman Dyson [8.7.2007] Templeton Prize acceptance lecture 2000, by Freeman Dyson Imagined Worlds by Freeman Dyson, 1996: Chapter 1 Video Interview of Freeman Dyson discussing Bogus Climate Models on YouTube A radio interview with Freeman Dyson Archived 7 August 2020 at the Wayback Machine Aired on the Lewis Burke Frumkes Radio Show in 2009. Suzan Mazur interviewing Dyson, 2012, CounterPunch "Pushing the Boundaries – A Conversation with Freeman Dyson" Archived 17 August 2016 at the Wayback Machine, Ideas Roadshow, 2014 Freeman Dyson and Gregory Benford: Forseeing the Next 35 Years – Where Will We Be in 2054? on YouTube, Arthur C. Clarke Center for Human Imagination, February 2019. A 'Rebel' Without a Ph.D.
==== Circulation ==== Circulation within local systems, such as bays, estuaries, and groundwater, may be examined with radium isotopes. 223Ra has a half-life of 11 days and can occur naturally at specific locations in rivers and groundwater sources. The isotopic ratio of radium will then decrease as the water from the source river enters a bay or estuary. By measuring the amount of 223Ra at a number of different locations, a circulation pattern can be deciphered. This same exact process can also be used to study the movement and discharge of groundwater. Various isotopes of lead can be used to study circulation on a global scale. Different oceans (i.e. the Atlantic, Pacific, Indian, etc.) have different isotopic signatures. This results from differences in isotopic ratios of sediments and rocks within the different oceans. Because the different isotopes of lead have half-lives of 50–200 years, there is not enough time for the isotopic ratios to be homogenized throughout the whole ocean. Therefore, precise analysis of Pb isotopic ratios can be used to study the circulation of the different oceans.
=== Peptide Folding === Coupling ribosome profiling with ChIP can elucidate how and when newly synthesized proteins are folded. Using the footprints provided by Ribo-Seq, specific ribosomes associated with factors, like chaperones, can be purified. Pausing the ribosome at specific time points, allowing it to translate a polypeptide over time, and exposing the different points to a chaperone and precipitating out using ChIP purifies these samples and can show at which point in time the peptide is being folded.
Sources: en.wikipedia.org
The cyclol fabric was shown to be implausible for several reasons. Hans Neurath and Henry Bull showed that the dense packing of side chains in the cyclol fabric was inconsistent with the experimental density observed in protein films. Maurice Huggins calculated that several non-bonded atoms of the cyclol fabric would approach more closely than allowed by their van der Waals radii; for example, the inner Hα and Cα atoms of the lacunae would be separated by only 1.68 Å (Figure 5). Haurowitz showed chemically that the outside of proteins could not have a large number of hydroxyl groups, a key prediction of the cyclol model, whereas Meyer and Hohenemser showed that cyclol condensations of amino acids did not exist even in minute quantities as a transition state. More general chemical arguments against the cyclol model were given by Bergmann and Niemann and by Neuberger. Infrared spectroscopic data showed that the number of carbonyl groups in a protein did not change upon hydrolysis, and that intact, folded proteins have a full complement of amide carbonyl groups; both observations contradict the cyclol hypothesis that such carbonyls are converted to hydroxyl groups in folded proteins. Finally, proteins were known to contain proline in significant quantities (typically 5%); since proline lacks the amide hydrogen and its nitrogen already forms three covalent bonds, proline seems incapable of the cyclol reaction and of being incorporated into a cyclol fabric. An encyclopedic summary of the chemical and structural evidence against the cyclol model was given by Pauling and Niemann.
== Background == Casey is of Mexican descent. A former Division I soccer player at the University of Texas at El Paso, Casey began training MMA in 2009 after her soccer career was cut short due to an injury. She began her amateur career in 2012, and her professional career a year later.
== Career == Chilkoti joined Duke University in 1996 as an assistant professor of biomedical engineering. He was promoted to associate professor in 2002 and professor in 2006. He was the Theo Pilkington Chair Professor of Biomedical Engineering from 2008 to 2013, and has been the Alan L. Kaganov Distinguished Professor of Biomedical Engineering at Duke University since 2013. From 2002 till 2007, Chilkoti served as associate director of the Center for Biologically Inspired Materials and Material Systems at Duke University and was the director of the center from 2007 to 2011. In 2014, he became Chair of the Department of Biomedical Engineering at Duke University and served as chair until 2022. As Chair of the Duke BME department, he launched an incubator—BRiDGE—for Biomedical Engineering faculty and student startups, and he created the Duke Engineering Entrepreneurship program (DEEP)—a post-doctoral fellowship program for recent PhD graduates of the department interested in entrepreneurship. Since 2023, he has been serving as the senior associate dean of Pratt School of Engineering at Duke University. Chilkoti founded two Gordon Research Conferences (GRCs)—one on Biointerface Science in 2006 and a second on Bioinspired Materials in 2012. Furthermore, he is the founder of five start-ups.
This article is a list of Acacia species (sensu lato) that are known to contain psychoactive alkaloids, or are suspected of containing such alkaloids due to being psychoactive. The presence and constitution of alkaloids in nature can be highly variable, due to environmental and genetic factors.
Wolpoff, anthropologist of the University of Michigan; John Shea (archaeologist), anthropologist of Stony Brook University; Lewis Binford, anthropologist of Southern Methodist University in Texas; Neanderthals are thought to have lived similar unevolved uncultured lives for 200,000 years; Brigitte Delluc of Abri Pataud; in the 1980s, a completely new paradigm was thought up by British anthropologist Chris Stringer whereby a new group originated about 200,000 years ago, replacing the former human evolution, known as recent African origin of modern humans, but this paradigm was countered by Milford Wolpoff and his multiregional origin of modern humans, arguing that Neanderthals hadn't died out; Dorothy Garrod, the first female professor at the University of Cambridge in 1939 - the Disney Professor of Archaeology, completed important research in the middle East on how Neanderthals would have encountered much more culturally advanced modern humans in that region; archaeologist Ofer Bar-Yosef described how radiocarbon dating does not work beyond 50,000 years, and modern humans were found there at least 100,000 years ago; the dating methods remained in dispute until reliable genetic ancestry methods arrived in the late 1980s, with Mark Stoneking, a molecular anthropologist of Penn State University, who introduced the Mitochondrial Eve theory in 1987; geneticist Kenneth Kidd and how genetic data had superseded much of the anthropological research, which had been inherently unreliable due to not enough solid data; essentially Neanderthals died out possibly due to insufficient language ability, and were less able in overall cognitive planning. Directed by Lawrence Simanowitz, narrated and produced by William Woollard, made by InCA Productions 6 October Staying Alive, survivors of terrible accidents speak, with Sylvia Chapell of the August 1985 British Airtours Flight 28M; Paul Barney of the September 1994 Sinking of the MS Estonia; survival cognitive psychologist John Leach of Lancaster University; Robert Sapolsky, a neuroendocrinologist, on how glucocorticoids are secreted; Jeffrey Alan Gray, Professor of Psychology at the Institute of Psychiatry, Psychology and Neuroscience; the 336th Training Group at Fairchild Air Force Base; medical researchers at DRDC Toronto; the October 1991 Operation Boxtop 435 Transport and Rescue Squadron from CFB Trenton Hercules crash, which resulted in the 1993 film Ordeal in the Arctic; the brain neurotransmitters affect survival outcomes, controlled by the enzyme monoamine oxidase; Helicopter Underwater Escape Training at Survival Systems in Dartmouth, Nova Scotia. Narrated by Bill Paterson, the consultant was Edward Bullmore, directed by Denman Rooke, produced by Adam Bullmore, made by October Films 13 October Killer Bees, about a catastrophic genetic experiment in southern Brazil in the late 1950s - the Africanized bee; the East African lowland honey bee was introduced in 1956 by Warwick Estevam Kerr; the bees were introduced to help the honey industry, instead the new bees killed off the native bees, as well as many people too, with bees terrorising Apache Junction, Arizona; one swarm of thousand led to 20,000 other swarms in one year; the bees have killed over 600 people; a climber in Costa Rica disturbed a swarm, and received 8,000 stings, killing him. Directed by Martin Gorst, made by Windfall Films 27 October Double Identity, largely about the nature versus nurture argument, as opposed to the less-scientific tabula rasa argument; the Twins Days annual festival held in Twinsburg, Ohio; the heritability of IQ and Robert Plomin of the Institute of Psychiatry, Psychology and Neuroscience at King's College London; Nick Martin of the Queensland Institute of Medical Research; 75% of intelligence is genetic from twin studies, and David T. Lykken of the University of Minnesota; vanishing twins; Neil Sebire of King's College Hospital and Alessandra Piontelli of the University of Milan; country music The LeGarde Twins; Dorothy V. M. Bishop of the University of Cambridge; heritability of IQ and Peter Conrad (sociologist) of Brandeis University; the Louisville Twin Study at the University of Louisville in Kentucky, which also found the Scarr–Rowe effect. Narrated by Jenni Murray, directed by Selina Macnair, produced by Amanda Theunissen, made by Fulcrum Productions West 3 November Identified Flying Objects, about Marfa, Texas and the Marfa lights, and other earthquake lights; Paul Devereux and computer scientist Erling Strand, of Østfold University College and Project Hessdalen, visits the Min Min lights in Australia in 1995; Paul Devereux investigated lights that had been seen at Llanegryn in 1904, which followed the Mochras geological fault; there had been seismic activity at the time which had culminated in the 1906 Swansea earthquake; lights had been seen at Toppenish ridge in the US, in the Cascade Mountains, which had a thrust fault; geologist Peter Sammonds at the UCL Department of Earth Sciences; geophysicist Jim Byerlee, known for Byerlee's law; Mexican television presenter Jaime Maussan; the Popocatépetl volcano in Mexico. Narrated by David Jessel, directed by Chris Hale, made by Real World Pictures, with the Discovery Channel 10 November What's in a Number?, poetry by Lavinia Greenlaw, with dyscalculia which is connected to the parietal lobe and Prof Brian Butterworth of UCL Neuroscience; the artist Sir Michael Craig-Martin; a 1950s educational film about pi made by Coronet Films; the Chudnovsky brothers; fractals come from plotting on a graph imaginary numbers against real numbers and have self-similarity, and Ian Stewart of the University of Warwick; Steven Weinberg of the University of Texas at Austin. Directed by Edmund Coulthard, produced by Duncan Dallas, who founded Café Scientifique in 1998, made by XYTV 24 November The Men with Nine Lives, about the British Army bomb disposal course, with 321 EOD Squadron RLC and the Army School of Ammunition (now the Defence Explosive Ordnance Disposal, Munitions and Search Training Regiment); twenty British Army bomb disposal personnel were killed defusing bombs in Northern Ireland; early IRA explosives were in tin cans filled with nails; 42-year-old Shane O'Doherty, a former IRA operative, who received thirty life sentences in 1974 for letter bombs; IRA personnel called themselves 'explosive operatives'; the IRA moved on to bombs in mail packages, triggered by tilt switches, and on to much-bigger car bombs; Lieutenant-Colonel Peter Miller invented a remote-control mechanical device that could set off a controlled explosion, so disabling most of the bomb components; projected water disruptors could remove explosive devices under vehicles; the IRA put car explosive devices inside a half of a beer keg; letter bombs would contain three to four ounces of semtex (mostly pentaerythritol tetranitrate); the Downing Street mortar attack of 7 February 1991; the hostage bomb; the IRA would lure army bomb disposal personnel, and metal-detectors would find how the IRA had lured army personnel; south Armagh, controlled by the Provisional IRA South Armagh Brigade was the most-dangerous part of Northern Ireland, and all army personnel travelled on operations only by helicopter. Directed by David Dugan, made by Windfall Films. Shown on Nova on 21 October 1997 as Bomb Squad 1 December Day Return to Space about the new proposals for craft; in 1995, NASA proposed the X-33, chosen on 2 July 1996, to fly by March 1999; Daniel Goldin, head of NASA from 1992 to 2001; Saturn from The Planets; The Blue Danube; the McDonnell Douglas DC-X; Maxwell Hunter; Jupiter from The Planets; Hans Mark of NASA; David Urie and Paul Landry; the Rutan Voyager, which flew around the world without refuelling; the aerospike engine; the Ansari X Prize and the EAA AirVenture Oshkosh air show; Mitchell Burnside Clapp; Gary Hudson, Bevin McKinney, and their Rotary Rocket (Roton); Steve Bennett and his Starchaser Industries. Narrated, similarly to the Adam Curtis series, by Jack Fortune, produced by Richard Reisz, directed by Stephen White, made by TV6 8 December Superhighway Robbery, about 26-year-old Russian computer programmer Vladimir Levin and computer hacking, who was caught when he arrived at Stansted Airport in March 1995 (he was trying to evade extradition to the US, but failed and was extradited in September 1997; an average bank robbery took $1900, but was prosecuted around 82%, a robbery via computer took around $250,000 and prosecution was around 2%; Willie Sutton and his Sutton's law. Narrated by Robin Ellis, directed by Patrick Forbes, produced by Jenny Crowther, made by Hart Ryan. 15 December Dr Satan's Robot, it refers to the film Mysterious Doctor Satan; it shows surgeon Robert J. White and his many macabre experiments on animals; the documentary would have not been appointment viewing for supporters of PETA; John Frankenheimer, director of the film Island of Dr Moreau; Terry Gilliam and his film Twelve Monkeys; the film The City of Lost Children; novelist Michael Marshall Smith, and his novel Spares; Cold Lazarus by Dennis Potter; Conservative MP for Birmingham Edgbaston, Jill Knight, and her disagreements with Roger Gosden; John Gillott; film director John Carpenter; David King, and disagreements with Robert Plomin, which led to his MRC funding being withheld; James Wilson (scientist) of the Perelman School of Medicine at the University of Pennsylvania; Julliet Tizzard of the Progress Trust. Narrated by Seán Barrett (actor), produced by Cathy Rogers, directed by Martin Durkin, made by RDF Television, with the Learning Channel
Sources: en.wikipedia.org
Reports describe modulation of GABA signalling, changes in monoamine turnover and effects on neurotrophic factor expression. These observations come mainly from animal and cell studies. A single unifying mechanism has not been demonstrated.
The peptide enters plasma rapidly and is broken down by ordinary proteases into amino acids and shorter fragments. Reported half-lives are short. Whether meaningful amounts of the intact molecule reach the brain is an open question.
Most clinical reports are small, published in Russian and not independently replicated. English-language reviews highlight the absence of large randomised trials. Conclusions about efficacy should be treated as provisional.
Dry powder is best kept sealed, protected from light, and held at minus 20 degrees Celsius or below. Desiccant packaging helps limit moisture uptake because the material is hygroscopic. A sealed vial should be allowed to equilibrate to room temperature before opening to reduce condensation.