The cytokine storm Essay Example

The cytokine storm Essay Example The cytokine storm Essay The cytokine storm Essay Glossary TNF-Alpha = Tumour Necrosis Factor-Alpha IL-6 = Interleukin-6 IL-8 = Interleukin 8 ARDS = Acute Respiratory Distress Syndrome SAP = Severe Acute Pancreatitis MOF = Multiple Organ Failure IG = Immunoglobulin FDA = Food and Drug Administration TLR = Toll-Like Receptors Deoxyribonucleic acid = Deoxyribonucleic Acid ACTH = Adrenocorticotrophic Hormone Describe the molecular footing of the status hypercytokinaemia ( A ; lsquo ; cytokine storm ) and describe in item, the pharmacological medicine of drug intercessions that may be used to handle the status Cytokine storm is straight caused by a flustered ratio of proinflammatory to anti-inflammatory cytokines which interact and can be fatal to the patient. ( 1 ) Proinflammatory cytokines can move locally by increasing the vascular permeableness of the tissue or in concurrence with chemokines advancing the physiological responses when tissue harm or a viral infection is encountered. ( 2 ) An addition in the grade of organ disfunction has been found to correlate with high degrees of the cytokines TNF-a, Il-6 and Il-8. These are proinflammatory cytokines which play an of import function in the cytokine storm. Cytokine storm must be treated instantly as it can turn out fatal through several conditions such as ARDS, sepsis, SAP, ARDS and MOF. ( 3 ) High degrees of cytokines have been observed in patients who have contracted the H5N1 virus bespeaking that this deregulating of the cytokine tract is what causes the ARDS associated with H5N1. ( 4 ) Cytokine storms can besides be triggered throu gh pharmacological intercessions ; TGN1412 was given to six voluntaries in a drug test plan in 2006 with dramatic consequences. Within an hr and a half there was a immense addition in the figure of proinflammatory cytokines in the trial subjects taking to a cytokine storm. Several pharmacological intercessions are available to battle the spread of the cytokine storm. Interfering with one cytokine s tract has proven to be uneffective and merely when a big proportion of cytokines are inhibited is the status improved. ( 5 ) However the immune system is huge in its complexness and hence In order to utilize a pharmacological intercession to cut down the cytokine storm a specific country of the cytokine cascade must be targeted. Inflammatory cytokines are released by T-cells and hence a pharmacological intercession to cut down the figure of T-cells in patients enduring from cytokine storms is a logical measure. CD4+ T cells produce cytokines that promote inflammatory effects within a assortment of cells, CD8+ cells destroy the host being cells that have become infected. ( 2 ) When antigen molecules binds to the t-cells this causes OX40 production to be increased. OX40 is a receptor protein for TNF-a cytokines. The addition in production of OX40 besides upregulates the production of OX40L. OX40 creates a survival signal which prevents the t-cells from programmed cell decease. ( 6 ) A interruption in this survival signal can be achieved by utilizing a human created soluble merger protein known as OX40-IG, this prevents the suppression of the programmed cell death of t-cells therefore diminishing the figure of t-cells nowadays. ( 7 ) One of the concluding inflammatory go-betweens in the inflammatory cytokine cascade is TNF-a, it promotes cutaneal redness, regulates the programmed cell death of active cells in the immune system and besides provides a positive feedback cringle whereby it stimulates the production of more cytokines. Macrophages besides provide a big beginning of TNF-a along with the kidneys which have shown to increase degrees of TNF-a when redness is present. The angiotonin II system may move as a cytokine in its ain right modulating the production of TNF-a. A test on rats has shown that when angiotonin II was administered the rats showed an over look of TNF-a and other inflammatory cytokines such as IL-6. Following this find a test on rats with elevated TNF-a degrees due to nephritis was carried out. An ACE inhibitor called quinapril was administered to the rats, the increased TNF-a look by the kidneys was reduced demoing that the Angiotensin II system does play a portion in modulating TNF-a degre es. ( 8 ) Recently the H5N1 avian strain and the H1N1 strain of the grippe virus have been at the head of media attending as they trigger cytokine storms and can be fatal to the patient. The mechanism of action by which grippe viruses trigger hypercytokinaemia is non to the full understood nevertheless it has been hypothesised that TLR receptors detect the presence of a foreign virus and upregulate the production of TNF-a and IFN-b/c and many other proinflammatory cytokines. ( 1, 10 ) Corticosteroids are produced in the cerebral mantle of the adrenal secretory organs above the kidneys and are released in response to increased concentration of proinflammatory cytokines. They help to command the positive feedback cringle that fuels the cytokine storm and hence cut down the proliferation of farther cytokines. ( 11 ) One theory besides suggests that some sections of the viral DNA are similar to that of ACTH taking to a decrease in the release of hydrocortisone from the adrenal secretory organs and hence doing adrenal insuffiency in patients. However steroids must be administered early in the status to be effectual and must be administered in concurrence with an antiviral such as osteltamivir. Methylprednisolone has been administered in some instances of avian grippe nevertheless there are few human tests that have been conducted. There will therefore demand to be more conclusive grounds for steroids as a believable intervention for cytokine storms before any decisions can be drawn. ( 1 ) An suppression of TNF-a could hence be effectual in cut downing the spread and inflammatory effects of the cytokine storm. Three different tnf-a alpha inhibitors are presently available and are approved by the FDA. Etanercept is the first of the three as it provides it s curative action by adhering to TNF-a molecules at one adhering site, this inhibits the TNF-a molecules from adhering to their specific receptors and leaving a biological signal. The 2nd and 3rd drugs are monoclonal antibodies and have two adhering sites on TNF-a. These two drugs may do a cascade which destroys immune cells by cell mediated lysis. Infliximab contains a little sum of mouse protein which may do the hosts immune system to let go of antibodies in response potentially take downing it s efficaciousness. Adalimumab maps in the same manner as Remicade nevertheless merely human protein is present therefore it may be a more feasible attack. ( 9 ) OX40 has already been established as a major subscriber to the proliferation of TNF-a and hence different attacks to cut down its efficaciousness are in advancement. A lipid-lowering medicine named Zocor has been shown to diminish OX40 and OX40L degrees and hence increase the programmed cell death of T-cells in cytokine storm patients. This lessening in OX40 degrees has been attributed to a alteration in written text of messenger RNA and interlingual rendition of proteins. Simvastatin is a HMG-CoA reductase inhibitor which inhibits the formation of mevalonate ( an interferon ) . Simvastatin has been shown to trip PPAR receptors, this tract was investigated to make up ones mind whether this agonist mechanism was take downing OX40 degrees or whether mevalonate was doing the decrease in OX40 degrees. Mevalonate and a PPAR adversary GW9662 where used in the probe. When mevalonate was used the degrees of OX40 became elevated nevertheless with GW9662 the degrees were non altered. This show ed that the mevaolonate tract is likely what causes this lessening instead than PPAR receptor activation. Further research into HMG-CoA reductase inhibitors such as Zocor will hold to be carried out before the mechanism of action becomes clear nevertheless simvastatin appears to be a promising new attack for covering with cytokine storms. ( 12-13 ) Bibliography Carter MJ. A principle for utilizing steroids in the intervention of terrible instances of H5N1 avian grippe. J Med Microbiol. 2007 July 1, 2007 ; 56 ( 7 ) :875-83. Richard Coico GS. Immunology: A short course2009. Hirasawa H, Oda S, Matsuda K, Watanabe E. Clinical facet of hypercytokinemia-induced pathophysiology in critical attention. International Congress Series. [ Department of the Interior: Department of the interior: 10.1016/S0531-5131 ( 03 ) 00883-5 ] . 2003 ; 1255:39-40. de Jong MD, Simmons CP, Thanh TT, Hien VM, Smith GJD, Chau TNB, et Al. Fatal result of human grippe A ( H5N1 ) is associated with high viral burden and hypercytokinemia. Nat Med. [ 10.1038/nm1477 ] . 2006 ; 12 ( 10 ) :1203-7. Droebner K, Reiling SJ, Planz O. Role of Hypercytokinemia in NF- { kappa } B p50-Deficient Mice after H5N1 Influenza A Virus Infection. J Virol. 2008 November 15, 2008 ; 82 ( 22 ) :11461-6. Maxwell JR, Weinberg A, Prell RA, Vella AT. Danger and OX40 Receptor Signing Synergize to Enhance Memory T Cell Survival by Suppressing Peripheral Deletion. J Immunol. 2000 January 1, 2000 ; 164 ( 1 ) :107-12. Humphreys IR, Walzl G, Edwards L, Rae A, Hill S, Hussell T. A Critical Role for OX40 in T Cell-mediated Immunopathology during Lung Viral Infection. J Exp Med. 2003 October 20, 2003 ; 198 ( 8 ) :1237-42. Ruiz-Ortega M, Ruperez M, Lorenzo O, Esteban V, Blanco J, Mezzano S, et Al. Angiotensin II regulates the synthesis of proinflammatory cytokines and chemokines in the kidney. Kidney Int. 2002 ; 62 ( S82 ) : S12-S22. Jackson JM. TNF-alpha ; inhibitors. Dermatologic Therapy. 2007 ; 20 ( 4 ) :251-64. Garc A ; iacute ; a-Sastre A. Antiviral response in pandemic grippe viruses. Emerg Infect Dis. 2006 ; 12 ( 1 ) :44-7. PADGETT DA, LORIA RM, SHERIDAN JF. Steroid Hormone Regulation of Antiviral Immunity. Annalss of the New York Academy of Sciences. 2000 ; 917 ( NEUROIMMUNOMODULATION: Position AT THE NEW MILLENNIUM ) :935-43. Liu B, Yu G, Yang Z, Sun L, Song R, Liu F, et Al. Simvastatin Reduces OX40 and OX40 Ligand Expression in Human Peripheral Blood Mononuclear Cells and in Patients with Atherosclerotic Cerebral Infarction. The Journal of International Medical Research. 2009 ; 37:601-10. Zhang X, Jin J, Peng X, Ramgolam VS, Markovic-Plese S. Simvastatin Inhibits IL-17 Secretion by Targeting Multiple IL-17-Regulatory Cytokines and by Suppressing the Expression of IL-17 Transcription Factor RORC in CD4+ Lymphocytes. J Immunol. 2008 May 15, 2008 ; 180 ( 10 ) :6988-96.

Modernist artist Man Ray and the Dada movement Research Paper

Modernist artist Man Ray and the Dada movement - Research Paper Example Man Ray and Dada Movement Biography Man Ray (Emmanuel Radnitzky), born in August 27, 1890 was of an immigrant Russian-Jewish family in Philadelphia, Pennsylvania. His parents were Melach Radnitzky and Manya Radnitzky. In 1897, Melach and his family moved to Brooklyn, New York. As he familiarized with Brooklyn, Emmanuel developed greater curiosity towards his surroundings. His interest widened to include ballistics, male and female anatomy, as well as mathematics (Baldwin 34).2 At the age of seven, Man Ray received first, as a birthday gift, a box of crayons from one of his cousins. He from then spent much of his time creating and drawing colorful pictures. At his early age of 14, Emmanuel Radniztky's high school equipped him with free hand and mechanical drawing. He gained much perspective of art and impressive fame through his studies and devotion to drawing. In his second year, his classmates frequently taunted him because of his name. This led to his adoption of the pseudonym Man Ray (Baldwin 48).2 Man Ray and the formal world of art The movement by Man Ray led to his joining Marcel Duchamp’s revolt towards aesthetic tradition. ... Independent men living beyond nationalism and war lived for other ideals. In his multiplicity nature, Man Ray needed escape from the insularity caused by his ethnicity. His emergence responded to the anti-individual and the collective experience of the First World War. Dada allowed Man Ray practice his art in enhancing acceptance and independence of his framework. Dada failed in sustaining itself within New York. Man Ray wrote a letter to the Dadaist Tristan Tzara before entry into Paris. This nihilist Tristan Tzara was of an avant-garde Romanian performance artist, journalist, playwright, film director, art critic and poet (Dachy & Michael 14).4 His heated personality, as well as the uncompromising activism, caused many conflicts in the Dada movement, in France 3and Romania. Despite of him not leaving Dada, Tristan Tzara took up Surrealism eventually (Masters 14).5 He developed his painting career as an apprentice in an engraving studio after completing his studies. He also served a s an illustrator and a draftsman in an advertising agency. Man Ray started taking drawing classes in Manhattan’s Ferrer Modern School where he learnt the world of photography and Alfred Stieglitz. The artist's creation by Pablo Picasso and Paul Cezanne tremendously inspired him. Dada and Surrealism encouraged Ray’s artistic work. Artistic ideas motivated him more than the artistic work itself. Despite his abstract paintings, Man Ray disregarded traditional superiority on photography. He used photography in documenting sculptures with no independent life and capturing activities by the avant-garde friends (Bardis 215).6 In 1915, his first solo exhibition happened at the Daniel Gallery.

Balancing Technology, People and Organisations in Information Systems Essay - 1

Balancing Technology, People and Organisations in Information Systems Development Education - Essay Example The company’s IS performance is therefore largely determined by the people’s knowledge. It was therefore noted that there is every need to bridge the gap that may exist particularly in understanding systems as well as the technology involved hence the need for proper education. Information technology (IT) and information systems (IS) continue to dominate in today’s corporate environments and they have a significant impact on their operations. Information technology is one of the topical issues in doing business during the contemporary time. In the same vain, there is also need to educate people about these wonderful features of the latest developments in IT and IS so as to attain great results in business. IT and IS have improved dramatically since the invention of computers where information processing was still centralized and only accessible to a few individuals who had access to the computers. However, the scenario today has changed where there are many end-users who can also benefit from the developments in IT and Is. For instance many people had no direct link or access to any IS in an organisation but today that access has been made possible by the new technology in information technology. Many people within an organisation are more directly involved with the systems as they can navigate their own way of doing work via an interactive user interface, thus assuming more responsibility for their own applications. Thus, according to (Ives, Olson, & Baroudi, 1983) cited in Travica (2008), the ability to capture and measure end-user satisfaction serves as a tangible measure in determining the performance of the IS as well as IT function and services. It is therefore important to evaluate whether IS in an organization meet users’ expectations and there ought to be relevant knowledge about how the system operates. In this case, there is need to draw a balance between the people’s knowledge and the operations of technology

Uses of ICT in the community Essay Example for Free

Uses of ICT in the community Essay ICT is used for a wide range of purposes in the community for personal, social and work related tasks. These help us complete the task to an exceptional level that would otherwise not have been possible. Below are a range of uses for which I use ICT The five needs of the community are * Security * Communication * Finance * Information * Road safety ICT is used primarily for security in Headington. This includes surveillance cameras such as CCTV and speed detectors. This keeps the crime levels down and helps make the whole community safer for residents and attract tourists. It is also used for communication and information in the community, through internet. Members of the community can find out about various things, and can also use the internet for social uses and communicating through MSN and other sites. ATMs provide ICT service for the communitys financial needs. This includes withdrawing money, checking accounts and various other tasks that the ATMs help to meet. This helps the community function better and helps meet the needs of the community. Personal Uses MP3 (Mpeg Audio 3) is a device Coding to compress audio files so that they become around one-tenth of the original file size, but without ruining the original sound quality above a perceptual level. It does this by reducing the accuracy of certain parts of the file which are above or below the hearing range of humans so that the files size reduced but the original sound quality is retained. This reduction makes it easier to download or play files in MP3 format. MP3 files are downloaded from the computer or internet and have to be in a certain format. I use MP3 players to download and listen to songs and other audio files such as podcasts (media files available on the internet) while I am note. Although I can listen to songs on my personal computer or CD player, MP3s are better because many hundreds of songs can be downloaded into it, which cannot be done on my computer without taking up too much of its memory. They are better than video players as both the sound and video quality of DVD players are significantly superior to that of video players. This helps me not get bored when I am in situations in which I cannot do anything productive instead, such as waiting for the bus. Community Gatso speed cameras help the community by catering for its road safety needs. As the area is not very busy and does not have many cars and also has a lot of two way roads, there have been many accidents involving speeding drivers as they relax and go fast when they see the road relatively empty. Many drivers do not anticipate cars coming from the opposite direction and this has resulted in many car accidents. Speed cameras help keep roads safe for drivers driving through the area and help to enforce the speed limit, making the community safer for its residents. Users must have either a modem, ISDN (integrated services digital network), broadband, ADSL (asymmetric digital subscriber line) or cable broadband to connect to the internet and use its services.

Notre Dame University Football Dynasty Essay -- essays research papers

Waking up the Echoes Throughout College Football's extensive 138 year history, there has been debate over which football team is the greatest dynasty. Many dynasties throughout the nation have the ability to be titled 'the greatest'. Nevertheless, the University of Notre Dame is undeniably the best overall College Football dynasty, when one considers not only statistics but also tradition, heart, and dedication. Notre Dame?s exceptional dynasty has many attributing factors throughout its history. These factors range from the greatest coaches and players to the contagious Irish spirit. No matter what ethnic background a Notre Dame man comes from, the minute he steps out onto 'Rockne's house'(Notre Dame Stadium), he automatically becomes one of the Fighting Irish. It is a telling act that throughout Notre Dame's history, and increasingly in recent years, many players, coaches, and fans have made the university their home purely because of their preference to be in the midst of a community of learning wher e belief is not merely tolerated, but in fact is celebrated. Notre Dame?s football history has not only been legendary but memorable. From their extraordinary hall of fame coaches to their historic rivalries, not one person can forget the Fighting Irish. During this Irish History, their dynasty could not have been ?Rock?-solid (referring to Knute Rockne who built Notre Dame Stadium) without outstanding coaches. With thirteen national titles, Notre Dame has more football championships than any other university or college in history. The thirty remarkable coaches include the greatest in Notre Dame?s history: Knute Rockne, Frank Leahy, Ara Parseghian, and Lou Holtz. The program has the highest total winning percentage, higher tha... ...s come and go, football?s greatest players and coaches yield their places in history, Nevertheless, the years fail to dim the ?glory-days? won by the Irish. The University of Notre Dame has proven itself as the best overall dynasty by its ability to persevere and prepare to bounce back under pressure. The remarkable history of the Fighting Irish will always be treasured by their fans and shows the heritage of the Irish spirit. Notre Dame?s young team for the upcoming season (2008) may lack experience but also has more potential for growth, flexibility and magnitude. Based on current statistics and facts, Notre Dame is proving its ability to come back and achieve greatness once again. No matter what the scores or numbers show or ?whether the odds be great or small, Notre Dame will win overall? as long as the spirit of dedication and perseverance continues to thrive.

Do You Agree That Progress Is Always Positive? Essay

â€Å"Progress† is usually thought of as a positive thing. When people say, â€Å"He has made some progress,† others perceive it as a positive concept. Most of the [1] times, progress is positive, and positive progress can benefit one in many different ways. [2] But there are times when progress can also be harmful and [3] give negative effects. Thus, it will be [4] safest to say that [5] progress is [6] a â€Å"challenge.† One’s progress can promote numerous [7] salutations. It could provide guiding principles by letting one acknowledge new ideas [8], thus making him/her more informed and intelligent, and progress can also provide more opportunities [9]. [10] This opportunity is noticed usually when someone [11] achieve some progress [12] and his intending to stretch out more. Thus stepping forward and making progress might [13] sound always promotive and safe. [14] But let’s examine the situations when progress can [15] work counterly and become negative. â€Å"Making progress† can be [16] reiterated as stepping forward. [17] But who said that one will always profit out of stepping forward? Sometime [18] taking progress can [19] be miserable. [20] Think of case when people in stock markets take a challenge and make a progress. [21] Nobody knows what the outcome will [22] look like and many times [23] they lose most of their money. [24] So progress [25] can be positive, but [26] also [27] negative [28] ; just like flipping a coin. The main theme of the novel, â€Å"Father of the Fathers† by Bernard Weber gives a perfect example of misguided progress. Although the main character [29] search for the â€Å"missing link† of human evolution, every time he [30] progressed to grasp something new, he [31] continued to fall deeply into â€Å"missing link: and [32] become more and more confused. Finally he [33] finds out that [34] present human is the missing link and [35] it [36] is never understandable, he gives up. Therefore, [37] groping progress can sometimes [38] informative and positive, [39] it could also be disastrous and misguiding. [40] Conclusively, progress is not always [41] a positive action. It could certainly be informative, salubrious, and [42] providing opportunities, but it could also be miserable, misguiding, and even harmful. Therefore, [43] taking a progress is a challenge. [44] If progress is always positive, whey doesn’t everyone progress at any time?

The Psych Of Serial Killer - 1735 Words

We as humans are born with the potential to create and accomplish some great and mighty things. For example some people decide to become lawyers, doctors, teachers, and even business owners. All of which will make them a great asset to society. On the other hand behavioral experts have noted that there exist extremely violent people in society who don’t seem to be contributing anything positive. Such individuals seem to prey on the weak and innocent. The aim of this study is to attempt to understand just what makes a serial killer function and act on such a high level of aggression. Several theories will be observed and noted in an effort to properly analyze this issue of the psych of a serial killer. Hopefully the results will add behavioral experts in formulating strategies concerning prevention and intervention. Just what is violence? Violence is explained as hostile emotions or feelings being acted upon. Also it means to be severe, adamant and many times hazardous by using one’s natural strength so as to create hurt or mistreatment (Webster, 2015,p.1). How many times have we seen or heard on the news of two individuals who engaged in an argument only to have it escalate to a full blown fist fight or end in a shooting death. My mother once told us of a story of a man named Leroy who had gotten into an argument with a male friend both men ended up slashing each other to death with a barber’s razor. Two young ladies had a beef in our own neighborhood while wrestlingShow MoreRelatedThe Forensic Science of Criminal Profiling Essay1436 Words   |  6 PagesThe Forensic Science of Criminal Profiling Profiling: an invaluable tool for catching criminals and killers. Profiling is a relatively new approach to crime solving, put in place by forensic psychiatrists. 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Ending the life from ‘an eye for an eye’ standpoint suffices the Principle of Utility as it promo tes the most happiness, thus completing the goal of utilitarianism (Rachels 99-101). Where do the pros and cons come in then? In this scenario, the pros would be killing the serial killer as it is in best interest to promote the law and give the victim’sRead MoreThe Blurry Lines And Laws Of Dna Fingerprinting1598 Words   |  7 Pagesto law enforcement agencies across the country for law enforcement purposes,† (Advancing Justice, 2014). It is through this database that forensic specialists can easily compare DNA fingerprints from different crime scenes, not only implicating serial killers but also connecting families to crimes. And that is exactly where things get sticky. Familiar DNA is similar, though not identical the bands on the DNA fingerprint are comparable which means that if two members of a genetically related familyRead MoreEssay on Horror Theories in Texas Chainsaw Massacre Part 22024 Words   |  9 Pagesstudy of horror and human psychology. King is the person that came up with the â€Å"beast within† theory. His theory states that everyone is insane, but some people are better than others at hiding it (784). The people that don’t hide it well end up in a psych ward, while others that can hide their dark sides’ remain in society, which is indeed a scary thought in itself (784). King thinks that people watch horror movies in order to keep the gators at bay. The gators King speaks of would be the vicious, dark