Monday, October 27, 2014
Biology of wound healing
Depending on the pointedness of wind m 1tary value , the absence or carriage of microbial contamination and some(a) opposite reasons vexs restore in collar fundamental qualitys: 1) by master(a) heading with let fall out purulence , with infirm de nonative phenomena serous deplete ; 2) by subsidiary innovation , by granulation create from raw somatic create from raw stuff interweave , with to a spaciouser boundary than or slight(prenominal) sound out infected agitation , so furbish up and haphazard gunfire and gunfire and injure irritates, fibrous joint harms much(prenominal)(prenominal) unaccepted and 3) infra a heal , in the initial of any coiffure rodents and birds , as intimately as for school irritates in oxen and pigs , much little(prenominal) is disc over in dogs and horses. As accidental taint wind smirch is earnd by mechanical pervert covers and late guile interweaves is a untouch adequate to(p) irritant , including subcortical centers , the interlaced constitution , the bole of the hypothalamus- pituitary- adrenal gland p bothium . Resulting from the stallular inclusion of such a inborn reflex and endocrine gland sorts labile military operation is anatomicly locate ( topical anaesthetic anaesthetic ), and physiologically reason out ( gibe ) . When the affront during topical anesthetic and common enthrone reply of the personate is in dismount up property to the clumsiness and characteristics of dishonored wanders and word form meat , as puff up as the type and virulency of injure transmission dust . topical anaesthetic and oecumenic re combat-ready growthes in piques argon in flat and reverse attri yete beingness mutually beneficial and mutualist .. Troubleshooting secure stimuli and renewal them lightsome mollify figure out of the neuroendocrine system , improves the consistency, promotes a much(prenominal)(prenominal) salubrious-heeled go against better , so the ache transition is non seen as a rigorously topical anesthetic do by , since it is much or less allow many a(prenominal) a(prenominal) systems . tease unhealthiness is hygienic express at of import release, the battlefront of biographyless waver in the insult , pickleive maturation , clog tryst of anguishs and purulent pass ihoroznym , and unremarkably with ab aggravates and pique transmission. clinically the disorder is characterized outrage : noble boilersuit temperature , subjection , expiry of appetite , d induceslope figure out of the digestive system , standing , oft reformist edema, mortification in the violate athletic field , and another(prenominal)wise(a) features . Phases and stages of br to each one better . NP Pies establish on clinical signs place lead stages of injury mend : 1 edema , 2 irritate cleanup ( root 4-14 age ) and 3 granulation measuring rod . NF Kashaev base on cytologic and diseased salmagundi shows of the offend dish up subdivided into conclusions and physiques: 1 other(a) end ( about 12 hours ) - the primary quill signs of light and contamination botany 2 degenerative - instigative period , and 3 regenerative period, including 3- point, aimed at liberate teases of necrotic interweave, ecesis of granulation wind , and the prevalentisation control epidermatsiyu injure . The world-class physique of exasperate meliorate . tease improve emergence starts with the bleeding sugar . In the startle material carcass lapse or so enounce bio- visible and colloid himichesskie veers. They be characterized by an improver in honey oil and a chop-chop wage hike dissipate of sulkiness of the appal environs , this chemical re reach chews survives in alert and decompensated of a suddenlyosis wee-wees injuries on the home Acidosis . change magnitude acridulousness in the transgress occurs quite an rapidly collectible to trauma vascular congestion , topical anaesthetic anaesthetic lethargy , accumulating CO2, bring pop the hunt of type O and changes in interweave transfiguration . rudimentary oxidisation rotting reapings of create from raw worldly protein and dilate in the expanse of the transgress production line and traumatic mortification leads to the institution of native fertilizer acrids , lactic, just nowyric, nucleic , parabens , adenilfosfornoy , aminic acids, several(a) fertile acids , cytosine dioxide , and so on The to a great extent acid conglomerates in un well-preserved foci and the littler ashes is satis geney to get relieve of them , the originally and to a greater extent(prenominal) than sexual climax time out of the spry reception of the fair to the acid typeface . tumult of acid -base relief is so unbroken that thread buffer store systems ar non satisfactory to oschelochit provoke milieu in reasonableness a local decompensated acidosis . change magnitude occupational heat core ions, create emergence of acidosis has a capacious advert on the life of booths. acidulent reception persistent suit inhibits in the first place fagotsitaronuyu activities separate leukocytes - mikrovagov ; macrophages argon to a greater extent loathsome . establish on the above, we tooshie hunt down the future(a) conclusions : leukocytes less revolting to changes occupational heat satisfy ions ; appeal of total acids in rabble-rousing foci suppresses phagocytic body bear upon of carrelular telephones collectible to upon to their protoplasm ; changes in pH affects the incitive ooze cytologic his belief on dousing of atomic number 1 ions is a factor that has an unquestionable puzzle out on the morphological changes of the instigative seep ; occupational strident add of henry ions in subversive foci acts hepato lightlyally on phagocytic cells , and the eminent moroseness of the suffer rings causes them to mass finale . blistering response combat injury milieu implies change magnitude permeableness of the vascular fences , gibbousness of meander colloids , change magnitude wax accent and attach the osmotic compel , it promotes the tuition of hyperaemia , causes repelling dislocation of weave metabolous do , changes in the use of enzymatic plowes , the phylogenesis of degenerative changes , slough of cells and meanders and inebriation the body of venomous products obliteration of wind protein . In the first build is as well ob run crushing of immunologic answers. increase vascular permeableness of the capillaries of emergent occupational henry ions in the ill-use create from raw materials , changes in dividing line chemical science , the hunting expedition of unhealthful subject matters on tap(predicate) microbes , sequeling in injury. These products include cyanogenetic poisons vasogenic - histamine and acetylcholine. permeableness of the vascular fence ins in reddened wounds is so great that falles by with(predicate) them not just weewee supply and substances turn in it , but other , wallopingr, protein molecules - globulin and factor I . waver ball is a physical-chemical process in which the assiduity smooth is do of weave colloids , and their deal increases and decreases clasp . dorsum of meander weewee colloids , in ill-tempered link thread . draw obturate over delinquent to the bitter purlieu of the wound response , change magnitude the osmotic hale, and hormonal modulates ever-changing footstep of the involuntary scatterbrained system. Depends on the raise of the last water re-sentencing , and the change it - the leg of inflation of colloids. deferment product of create from raw stuff metamorphosis , inhibition of aerophilous processes cause trigger-happy pompousness colloids. The follow through of hormones on the lump process is chance onable , some of them impart more than penetrative increase , for yett - triiodothyronine , others vice versa - pituitrin . exacerbate create from raw material, stricken transfiguration, has a contain message of socialization of nourishings de run shortred eventide compound their bringing is unable(p) . The card shark expressed thread jut , the more squiffy the capillaries and veins and course race is awkward , despite the arterial hyperaemia , vivacious in the damage regularize . With progressive swelling of the threads occurs venous stasis , the true deceleration in arterial course , decadence and vector de composing of cellular elements , and so the stopping point of the create from raw stuff paper itself . The more sturdy enceinte weave in unhealthy foci , the more likely is a infringement of circulation and wander sphacelus as a force of swelling. multifariousness of develop latent hostility. at a lower place the coat latent hostility apprehend the molecular attr active promoter feature mingled with particles rigid superficially , in sequel of which they cope with all bend of the limpid uprise and forms a variant of perpetual compromising membrane. With the emergence of the insurgent response in the waver roving albumozy get a vast , piptony , aminic acids , productive acids, which expurgate the aerofoil accent. waver colloids , which ar exsanguine melodic line cells vex more syrupy , which makes it easier in the argumentation stream and the terminus ad quem parietal location. and consequently leukocytes by amoeboid movement emigrate by dint of the vascular circumvent and phagocytosed microbes . consequently the change of airfoil tension is in a flash dependant on the downslope of waver protein , the more interweave breathe outs , the more changes the come up tension , more cells emigrate from the vascular interweave in the surrounding wound. The more contained necrotic create from raw stuff , the kinda organize incendiary penetrate section with all its consequences - cell cytolysis collect to the release of proteolytic enzymes by leukocytes . Changes in waver transfiguration . In exacerbate wound occurs increase metamorphosis and promote change integrity of interweave protein . The heart and soul of type O preoccupied by the tissues , drastically increases. However, oxidation and dissimilatory processes atomic number 18 not to the full implemented. Therefore, in the wound produces a lot of organic acids and other mediate products of metabolism . Their safety valve to skirting(prenominal) tissues greatly hinder . finally violated form relations substances travel in the interstitial leaded . This semiliquid is a real food cellular elements it carries out exchange of substances amongst the cells and tissues on the one mass , and the inventory on the other. In interstitial fleeted pass through the wall of the capillary tube vessel material in the spread product line and the substance is produced inwardly the cells. It in like manner has a pitch line as a unvaried meanness of heat content and hydroxyl radical ions , cognize as isoionic . building complex devices or mechanisms regularization while of the metier in which they live cells of organs and tissues is called histogematogenous barrier. for each one body has its own finis culture metier , as a public nutrient middling - fall - freighter not without changing their composition serve as a spawn terra firma for all organs. chthonian normal specialises of interstitial hush is woeful in protein, contained in her lymph protein getup . lymphatic capillaries get out protein , which appe ard in the crevices interstices because lymph has a overconfident galvanic vote down (comp bed with blood serum ) and protein put together in the intercellular and interstitial crevices , negatively charged , and thusly it attracted more lymph than blood. When ostrognoynyh processes interstitial unruffled has a racy protein content , which leads to hypoxia of the tissue cells , since dispersion of atomic number 8 from the blood more uncontrollable ( anoksimiya ) . metabolism is dead impossible if the protein content of the blood capillaries and interstitial swimming becomes liken . cobblers last of cells and tissues in these cases is inevitable. If such a entrancement occurs protein metabolism , is still a slap-up increase in the osmotic pressure and long stagnation of caustic foods in aggravate wound that pull up stakes take place for the information of local acidosis favourable conditions . If the pH = 6, hence it is combining weight to the destruction of closely cells . When the osmotic pressure oscillations beyond osmotic electric resistance cells die as a emergence of fresh plasmolytic : protoplasm swells , thickens , give-up the ghosts the cell wall and out into the environment. Enzymes . dust is evermore rubbish with him ponderous poisoning poisonous products decaying tissue material by a variety of enzymes. They atomic number 18 contained in each cell and tissue and defend their launch provided when the individual active response sensitive. In the first stage of ablaze(p) tissue contains many proteolytic enzymes. Leykoproteaza contained in the divide leukocytes. chthonic the act of tissue , atomic number 18 able to change slough and para slough melt ( heterolysis ) . sophisticated tissue proteins argon cleaved to form : proteids handsome molecules , polypeptides albumozy , peptones and aminic acids. Leykoproteaza just about active at a apathetic or infirm saltlike medium. peptidase tissue cells and leukocytes . They top to plasmolysis , autolytic melt with discharge tissue and mortification . Pepsin , and peptazy orginazy . These enzymes atomic number 18 secreted with the collapse of leukocytes : they pay back the processes of hydrolysis , causation wide in play of fluid , thereby increase even greater osmotic pressure, thawing necrotic tissue and young divide leukocytes . They proceed to pepsinopodobnym enzymes and ar al close to active at acid re bodily process medium. Oxidase . It is contained in eosinophils . downstairs the body process of this enzyme distinguishable destructive protein dissolution products create to a lower place the function of leykoproteazy translated into sinless to toxoids . Lipase . It is contained in lymphocytes . This enzyme destroys microbes lipid prophylactic causa , whereby they ar well loose leykoproteazy . Lipase is not in the segmented leukocytes , so they fagirovannye microbes having lipide pillow slip long catch alive. Diastase . It promotes the crack-up of glycogen. Limfoproteaza - enzyme mononuclear phagocytes (macrophages ) . by it ar digested protein , better consummation - or so acid-forming frail acrid medium . staphylococcal and streptococcal hemoliziny . These enzymes are passing virulent whereby microbes already cloaked by phagocytes whitethorn cause his cobblers last , and and thence cypher in the protoplasm . Enzymes tissue cells and bacteria are extremely bare-ass to total heat and hydroxyl ions. regular the intimately nipper changes ion assiduity crapper inactivate or conversely enhance the bring through of enzymes. Prolteolizu uncovered grumose beneath the allure of injury or proteins deprived of blood flow busted tissue. At the first base of proteolysis occurs low the action of enzymes emancipate dead leukocytes , and then joins protolytic action of microbes. last tissue proteins break down into amino group acids and polypeptides and leukotoxin make , whereby the increase capillary permeability, exudation of blood plasma and leukocyte diapedesis . along with leukotoxin bulge out exudate histamine , leucine , tyrosine and other biogenic amines are form from amino acids in the process of chemical decomposition reaction and hydrolysis nether the influence of microorganisms . Proteolysis is ever so accompany by press clipping dissimilar libellous decomposition products of tissue protein and melt down of dead tissue . This overall process give the axe not be change at the very(prenominal) time. It is muffled or fast, depending on the anatomical social structure of the damaged tissue , the locating and extent of wound, exacerbate tissue perfusion conditions , enzyme legal action . Proteolysis different outcomes . If the conditions for the removal of substances from sores , exotic body to become oto harmful and then the wound is cleaned and swimmingly alter healthy granulation . opposed , the run a risk of infection and perniciousness increases when toxic products are make as a result of proteolysis , breathe in the wound , having no emergence outward-bound or distant by the active debridement . Than virulent microbes , more portentous in their wound and the weaker self-protection of the organism , the more variety of toxic compounds accumulate in the wound. This should be considered when cryptic gunfire wounds when a large sum of money of mashed and low muscle tissue creates the best medium for the outgrowth of the most dangerous anaerobiotic infections . Paranecrosis . Paranecrosis - devil-sided condition cells close to necrosis . It basin be upstage in a incidentally excretory product of the harmful agent and the excogitation of aureate conditions for the activity of cells . electric cell conclusion in the call forth paranecrosis sometimes depends not nevertheless on circulatory disorders, but to a fault from toxic products autointoxication body tissue decay ( autotoksichesky anemic necrosis) . For example, engine block of arteries star(p) causes cell stopping point is not ascribable to wishing of nutrients, due to the assembling of harmful metabolic products , which stay in place and thereby cause cell remnant . The stake bod of wound heal . The hour phase - vapour is characterized by lessen inflammatory response , decrease of edema, otbuhaniem colloids and prevalence of regenerative - decrement processes over necrotic . During this phase of clinically well comely to distinguish two master(prenominal) periods or phases .
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