Pharmacodynamics Litšebeletsong tsa Bongaka ba Meriana
Pharmacodynamics ke lekala la pharmacology le ithutang liphello tsa lithethefatsi 'meleng. Sepheo sa lona se kenyelletsa mekhoa ea ts'ebetso ea lithethefatsi, kamano pakeng tsa mahloriso a lithethefatsi le liphello tsa kliniki, le lintlha tse susumetsang karabelo ea mokuli. Tloaelong ea meriana ea kliniki, ho utloisisa pharmacodynamics ha se khopolo-taba feela empa hape ho sebetsa e le motheo oa bohlokoa bakeng sa ho etsa liqeto tsa kalafo: ho khetha meriana e nepahetseng, ho fumana lipheo tsa phekolo, ho beha leihlo katleho, le ho thibela le ho laola litla-morao. Sengoloa sena se tšohla karolo ea pharmacodynamics ts'ebetsong ea meriana ea kliniki, ho kenyeletsoa le ts'ebeliso ea eona maemong a fapaneng a bakuli.
Mehopolo ea motheo ea pharmacodynamics
Pharmacodynamics e qala ka potso ea bohlokoa: lithethefatsi li hlahisa liphello tsa tsona joang? Ka kakaretso, lithethefatsi li sebetsa ka ho sebelisana le lipheo tsa baeloji tse kang li-receptor, li-enzyme, likanale tsa ion, kapa li-transporter. Litšebelisano tsena li ka baka likarabo tse lakatsehang tsa 'mele (litlamorao tsa phekolo) kapa likarabo tse sa lakatseheng (litlamorao). Boemong ba bongaka, pharmacodynamics e thusa ho koala sekheo pakeng tsa "tekanyo e fanoang" le "liphetho tse bonoang," tse kang ho theola khatello ea mali, ho ntlafatsa matšoao a bohloko, kapa ho laola tsoekere maling.
Kamano ea tekanyo-khatello-phello hangata e bontšoa ho sebelisoa mokhoa oa ho lekanya tekanyo-karabo. Litekanyetso tse peli tsa bohlokoa tse sebelisoang khafetsa ke katleho (bokhoni ba moriana ba ho hlahisa phello e phahameng ka ho fetisisa) le matla (tekanyo kapa mahloriso a hlokahalang ho hlahisa phello e itseng). K'hemisteng ea bongaka, kutloisiso ena e molemo, mohlala, ha ho khethoa pakeng tsa matla a mabeli a meriana a sebetsang ka ho lekana empa a fapane, kapa ha ho etsoa qeto ea hore na moriana o matla ka ho lekaneng bakeng sa mokuli ea nang le boemo bo tebileng.
Li-receptor le mekhoa ea ts'ebetso ea lithethefatsi
Meriana e mengata e sebetsa ka li-receptor. Li-receptor e ka ba liprotheine tsa lera (mohlala, li-receptor tsa adrenergic), li-receptor tsa ka hare ho sele (mohlala, li-receptor tsa steroid), kapa lipheo tse ling tse kang li-enzyme (mohlala, li-inhibitor tsa ACE). Pharmacodynamics e ithuta mefuta ea likamano tsa lithethefatsi le li-receptor, tse kang:
1. Li-Agonists, e leng lithethefatsi tse kenyang li-receptor tšebetsong le ho hlahisa karabelo (mohlala: salbutamol e le β2 agonist bakeng sa bronchodilation).
2. Lithethefatsi tse thibelang ho kenngwa tshebetsong ha receptor (mohlala: propranolol e le β antagonist ho fokotsa sekgahla sa pelo).
3. Li-agonist tse sa fellang, tse kenyang li-receptor tšebetsong empa li na le phello e tlase ho feta li-agonist tse felletseng.
4. Li-agonist tse fapaneng, tse fokotsang ts'ebetso ea motheo ea receptor tlas'a maemo a itseng.
Tloaelong ea bongaka, ho utloisisa mefuta ena ea likamano ho thusa litsebi tsa meriana ho bolela esale pele liphello tsa lithethefatsi ha li sebelisoa hammoho. Mohlala, ho fana ka mohanyetsi ho ka fokotsa katleho ea agonist e tsamaisanang le meriana, kapa agonist e sa fellang e ka "nkela sebaka" sa agonist e felletseng 'me ea fokotsa phello ka kakaretso. Sena se bohlokoa haholo ho bakuli ba nang le mekhoa e rarahaneng ea phekolo, joalo ka ba nang le lefu la pelo, asma, kapa mafu a kelello.
Lenane la kalafo, katleho le polokeho
Khopolo e 'ngoe ea bohlokoa ho pharmacodynamics ke index ea kalafo, e leng sebaka se pakeng tsa tekanyo e sebetsang le tekanyo e chefo. Lithethefatsi tse nang le index e moqotetsane ea phekolo (mohlala, warfarin, digoxin, lithium, phenytoin) li hloka tlhokomelo e haufi hobane liphetoho tse nyane tsa mahloriso li ka lebisa chefong kapa ho hloleheng ha phekolo. Tloaelong ea meriana ea bongaka, sena se amana haufi-ufi le lenaneo la Tlhokomelo ea Meriana ea Kalafo (TDM) le tlhahlobo ea litekanyetso tsa bongaka tsa bakuli.
Litsebi tsa meriana ha li shebe feela maemo a meriana empa li boetse li a amahanya le likarabo tsa bakuli. Mohlala, maemo a warfarin ha a lekanngoe ka kotloloho, empa litlamorao tsa bona tsa meriana li hlahlojoa ho sebelisoa INR. Sena se bontša hore meriana hangata e bonahatsoa ka liparamente tsa kliniki kapa li-biomarker tse amehang, eseng feela mahloriso a meriana maling.
Phapang ea karabelo ea mokuli
Hase bakuli bohle ba arabelang meriana ka tsela e tšoanang. Liphetoho karabelong li ka bakoa ke lintlha tse kang lilemo, liphatsa tsa lefutso, lintho tse ling tse tšoanang, mamello, kutloisiso ea li-receptor, le tšebelisano-'moho ea lithethefatsi. Pharmacodynamics e thusa ho hlalosa hore na ke hobane'ng ha bakuli ba babeli ba tekanyo e le 'ngoe ba ka ba le liphello tse fapaneng: e mong oa ntlafala, e mong ha a ntlafale, kapa esita le litla-morao.
Mohlala, bakuli ba hōlileng hangata ba ba le kutloelo-bohloko e eketsehileng ho meriana e itseng, joalo ka benzodiazepines, antipsychotics, kapa antihypertensive medications. Liphetoho tsena ha se kamehla li amanang le pharmacokinetics (ho monya, kabo, metabolism, le ho ntša), empa hape le liphetoho tsa pharmacodynamic, joalo ka likarabelo tsa li-receptor tsamaisong e bohareng ea methapo le tsamaisong ea pelo le methapo ea mali. Ka hona, molao-motheo oa "qala tlaase, e-ea butle" o sebelisoa haholo khemising ea bongaka, haholo-holo ho batho ba hōlileng.
Litšebelisano tsa lithethefatsi ho latela pono ea pharmacodynamic
Litšebelisano tsa meriana ha li etsahale feela boemong ba meriana, empa hape le boemong ba meriana. Litšebelisano tsa meriana li etsahala ha meriana e 'meli e na le liphello tse matlafatsang (tsa tšebelisano-'moho) kapa tse fokolisang (tse hanyetsanang) tse peli ho sepheo se le seng kapa tsamaiso ea 'mele. Mehlala e atisang ho fumanoa ts'ebetsong ea bongaka e kenyelletsa:
– Kotsi ea ho tsoa mali e eketseha ha li-anticoagulant (warfarin) li sebelisoa hammoho le li-antiplatelet (aspirin, clopidogrel) kapa li-NSAID. Sena se bakoa haholo-holo ke litlamorao tse tšoanang tsa pharmacodynamic tse sitisang hemostasis.
– Ho tepella maikutlong le ho kokobetsa hoa eketseha ha li-opioid li sebelisoa le benzodiazepines kapa meriana e meng e kokobetsang.
– Hyperkalemia e ka hlaha ha dithibela-mafu tsa ACE/ARB di sebediswa le spironolactone kapa ditlatsetso tsa potassium.
Litsebi tsa meriana tsa bongaka li hloka ho tseba metsoako e kotsi, ho lekola tlhoko ea tsona ea bongaka, le ho fana ka likhothaletso tse kang liphetoho tsa tekanyo, khetho ea mekhoa e meng, kapa ho beha leihlo liparamente tse itseng.
Mamello, ho hloka kutloelo-bohloko, le ho itšetleha
Ka tšebeliso ea nako e telele, karabelo ea lithethefatsi e ka fokotseha ka lebaka la mamello kapa ho se utloe bohloko ha li-receptor. Mohlala, tšebeliso ea lithethefatsi tse ling tse thibelang ho ruruha tse ka sebelisoang ka ntle ho letlalo e ka baka ho ruruha ho khutlang ha tsona, ha tšebeliso ea nitrate ea nako e telele e ka fokotsa karabelo ea antianginal ntle le nako e se nang nitrate. Ka li-opioid, mamello ea phello ea bohloko e ka hlaha, e hlokang liphetoho tsa regimen ea mokuli kapa maano a ho potoloha ha opioid.
Pharmacodynamics e boetse e amahanngoa le kotsi ea ho itšetleha le ho khaotsa ho sebelisa lithethefatsi, haholo-holo ka li-benzodiazepine, li-opioid, le meriana e meng ea psychotropic. Litšebeletsong tsa meriana ea bongaka, litsebi tsa meriana li bapala karolo thutong ea bakuli, ho fokotsa moralo, le ho beha leihlo matšoao a tšebeliso e mpe ea lithethefatsi.
Pharmacodynamics khethong ea phekolo le tlhokomelo ea kliniki
Tšebeliso ea meriana e sebetsang e bonahala ts'ebetsong ea ho khetha phekolo ho latela lipheo tsa bongaka. Ka mohlala, ho khatello e phahameng ea mali, meriana e ka fokotsa khatello ea mali ka mekhoa e fapaneng: li-diuretics li fokotsa bophahamo ba 'mele, li-ACE inhibitors li fetola tsamaiso ea renin-angiotensin, 'me li-calcium channel blockers li baka ho ruruha ha methapo ea mali. Litsebi tsa meriana li nahana ka boemo ba mokuli: hore na o na le lefu la tsoekere, ho hloleha ha liphio, kapa lefu la pelo; hore na lipheo tsa khatello ea mali ea hae ke life; le kotsi ea litla-morao tse kang hyperkalemia kapa edema.
Ho lefu la tsoekere, khetho ea phekolo ha e nahane feela ka phokotso ea HbA1c empa hape e nahana ka litlamorao tse ling tsa pharmacodynamic tse kang kotsi ea hypoglycemia, tšusumetso boima ba 'mele, le tšireletso ea pelo le methapo ea mali kapa ea liphio. Ho sa le joalo, tšoaetsong, pharmacodynamics ea lithibela-mafu e ba ea bohlokoa: lithibela-mafu tse ling li itšetlehile ka nako, tse ling li itšetlehile ka mahloriso, 'me tse ling li susumetsoa ke AUC/MIC. Tsebo ena e thusa ho nts'etsapele mokhoa o utloahalang oa ho lekanya, ho kenyeletsoa nako ea ho lekanya le nako ea phekolo.
Karolo ea litsebi tsa meriana tsa bongaka le tšebelisano-'moho ea litsebi tse fapaneng
Ka har'a sehlopha sa tlhokomelo ea bophelo bo botle, litsebi tsa meriana tsa bongaka li sebetsa e le litsebi tsa meriana, li netefatsa phekolo e sireletsehileng le e sebetsang. Pharmacodynamics e sebetsa e le sesebelisoa sa tlhahlobo ho lekola hore na lipheo tsa phekolo lia finyelloa, hore na litla-morao li ka hlalosoa ke mekhoa ea meriana, le hore na metsoako ea meriana e utloahala. Litsebi tsa meriana li boetse li kenya letsoho ka thuto ea bakuli, mohlala, ho hlalosa hore na ke hobane'ng ha meriana e lokela ho nooa khafetsa ho boloka phello e tsitsitseng, kapa hore na ke hobane'ng ha meriana e itseng e sa lokela ho emisoa ka tšohanyetso.
Tšebelisano-'moho le lingaka le baoki ea hlokahala ho hokahanya merero ea kalafo. Ha phekolo e hloleha, pharmacodynamics e thusa ho hlahloba hore na sesosa ke tekanyo e tlase haholo, ho hanyetsa (lithibela-mafu), kapa mokhoa o sa lokelang oa meriana bakeng sa boemo ba mokuli. Ka mokhoa o ts'oanang, ha ho hlaha likarabo tse mpe, ho utloisisa pharmacodynamics ho thusa ho khetholla litla-morao tse ka lebelloang (tse amanang le tekanyo) ho tsoa liketsong tse sa tloaelehang.
Ho koala
Pharmacodynamics ke motheo oa bohlokoa lits'ebeletsong tsa meriana ea bongaka hobane e hlalosa kamano pakeng tsa lithethefatsi, lipheo tsa baeloji, le likarabo tsa bongaka tsa bakuli. Ka ho utloisisa mekhoa ea ts'ebetso ea lithethefatsi, li-curve tsa tekanyo le karabelo, li-index tsa kalafo, phapang ea karabelo, le likamano tsa meriana, litsebi tsa meriana ea bongaka li ka fana ka likhothaletso tse nepahetseng le tse sireletsehileng tsa kalafo. Har'a ho rarahana ho ntseng ho eketseha ha bakuli le mekhoa ea meriana, ts'ebeliso e tsitsitseng ea meriana ea bongaka e tla ntlafatsa boleng ba tlhokomelo, e fokotse likotsi, 'me e tšehetse phihlello ea liphetho tse ntle tsa bongaka.
