Okufa kw’obutoffaali kye ki? Ka tukyogereko mu ngeri ennyangu!

Wali weebuuzizzaako kiki ekituuka ku butoffaali obutonotono obuli mu mibiri gyaffe? Oluusi, nga ffe, obutoffaali buno ‘bufa’ ng’obudde bwabwo buweddewo. Kino kye tuyita ‘okufa kw’obutoffaali’ mu busawo. Wadde kino kitiisa katono okuwulira, mu butuufu kyetaagisa nnyo okusobola okuwangaala obulungi emibiri gyaffe mu mbeera nnyingi. Kale leero, ka twogere ku kufa kuno kw’obutoffaali kye kuli, engeri gye kubaawo, n’engeri gye kukwatamu emibiri gyaffe.

Obutoffaali kye ki? Ekyo ka tusooke tukitegeere!

Okay, nga tetunnaba kwogera ku 'cell death', katutunuulire 'cells' zino kye ziri. Teebereza nti omubiri gwaffe kizimbe kinene, era obutoffaali bulinga amabaati amatono ennyo agakola ekizimbe ekyo. Mu butuufu, toyinza na kulowooza, mu mubiri gwaffe mulimu obutoffaali obusukka mu buwumbi 30 ! Obutoffaali buno bwonna bwegatta ne bukola ebitundu byaffe n’ebitundu by’omubiri byaffe. Okutwalira awamu, waliwo ebitundu ebikulu bisatu mu katoffaali:

• Olususu lw’obutoffaali: Kino kiringa olukomera oba omulyango ogukuuma obutoffaali. Kye kisalawo n’okufuga ebiyinza okuyingira n’okufuluma mu kasenge.
• Cytoplasm: Kino kye kitundu ky’amazzi ekiringa jelly munda mu katoffaali. Okukola obutoffaali obwetaagisa obutoffaali n’enkola nnyingi enkulu ez’eddagala ezibeerawo munda mu katoffaali zibeera mu cytoplasm eno.
• Nucleus: Kino kye ‘control center’ oba ‘obwongo’ bw’obutoffaali. Amawulire gaffe ag’obuzaale, kwe kugamba, DNA (`DNA` - Deoxyribonucleic acid), okusinga gabeera munda mu nyukiliya eno. Nucleus era ekola RNA (`RNA` - Ribonucleic acid) . `RNA` eno ekoppa amawulire agali mu `DNA` era eyamba obutoffaali okukola obutoffaali obw'enjawulo bwe bwetaaga okukola n'okukula.

Kati olina endowooza enkambwe ku katoffaali kye ka.

Kale, okufa kuno okw’obutoffaali kye ki?

Mu ngeri ennyangu, okufa kw’obutoffaali bwe butaffaali mu mubiri gwaffe bwe bulekera awo okukola ne bufa nga bumaze okukola emirimu gyabwo oba nga bwonoonese olw’ensonga ezimu. Obutoffaali obuli mu mubiri gwaffe tebutondebwa butondebwa. Bulijjo beeyawulamu era ne bakola obutoffaali obupya. Kino tukiyita ‘okugabanya obutoffaali’ (`Mitosis`) . Okusinziira ku bakugu, akatoffaali k’omuntu akalamu kasobola okweyawulamu mu ngeri eno emirundi nga 50-60. Oluvannyuma lw’ekyo, akatoffaali kakaddiwa ne kafa.

Emibiri gyaffe buli kiseera gikola obutoffaali obupya okudda mu kifo ky’obutoffaali obukadde, obwonooneddwa, era obugenda okufa. Kiba ng’okugoba ebintu eby’edda n’oleeta ebintu ebipya.

Okufa kuno okw’obutonde obutoffaali kuyamba okukuuma emibiri gyaffe nga miramu era nga gikola bulungi. Naye obuzibu bubaawo ng’okufa kuno kw’obutoffaali tekubaddewo nga bwe kyali kisuubirwa, oba ng’obutoffaali obutalina kufa butandika okufa.

Lwaki obutoffaali bwaffe bufa? Ensonga ze ziruwa?

Waliwo ensonga ez’enjawulo lwaki obutoffaali bufa. Ebimu bya butonde, ebimu si bwe biri. Ka tulabe ensonga enkulu eziviirako:

• Obutoffaali obumu bufa nga bukula , nga tebunnatondebwa mu bujjuvu.
• Obutoffaali obukadde bwe butuuka ku myaka gye butakyasobola kweyawulamu, kwe kugamba, obulamu bwabwo bwe buba buweddewo, bufa. Eno nkola ya bulijjo.
• Singa wabaawo obutoffaali obwonooneddwa nga tebusobola kuddaabirizibwa mu ngeri emu oba endala, bufa mu butonde. Teziyinza kuterekebwa mu mubiri nga kasasiro.
• Endwadde, obuvune, obutwa, n’obujjanjabi obumu nabyo bisobola okwonoona obutoffaali ne bufa.

Ani ali mu bulabe bw’okufa kw’obutoffaali?

Mu butuufu, okufa kw’obutoffaali kutukosa ffenna – era kitera okuba ekintu ekirungi. Kyewunyisa, olususu lwo luyiwa obutoffaali obufu nga 40,000 olunaku! Olususu lwaffe olw’okungulu oluyitibwa epidermis , buli kiseera lukola obutoffaali obupya obw’olususu okudda mu kifo ky’obutoffaali buno obufu. Mu ngeri endala, singa okufa kuno kw’obutoffaali tekwabaddewo, tetwandibadde na lususu lulamu.

Bika ki ebikulu eby’okufa kw’obutoffaali?

Okusinziira ku ngeri obutoffaali gye bufa, busobola okwawulwamu ebika bisatu ebikulu:

1. Apoptosis - Okufa kw’obutoffaali okutegekeddwa

2. Autophagy - okuddamu okukola obutoffaali n’okufa

3. Necrosis - Okufa kw’obutoffaali obuva ku bubenje

Kati ka twogere ku buli kimu ku bika bino mu bujjuvu katono.

1. Apoptosis oba okufa kw’obutoffaali okutegekeddwa

Apoptosis kwe kufa kw’obutoffaali okubaawo mu butonde, okutegekeddwa . Mu nkola eno, obutoffaali bwesaanyaawo. Oluvannyuma lw’obutoffaali okweyawulamu emirundi egisinga obunene, bwe butuuka mu kifo we butakyasobola kweyawulamu, bufa nga buyita mu nkola eno (Apoptosis). Okufa kuno okw’obutoffaali okutegekeddwa kulamu nnyo era kusuubirwa eri emibiri gyaffe.

Lowooza ku kyokulabirako kino. Engalo z’omwana bwe zisooka okutondebwa mu lubuto lwa maama, ziyungibwa ku ndala olw’olususu olugonvu wakati wazo. Nga olususu wakati w’obugere bw’amagulu g’enkoko. Naye omwana bw'akula, enkola eno eya ``Apoptosis'' ereetera obutoffaali obuteetaagisa wakati w'engalo ezo okufa mu ngeri entegeke. Wano engalo we zaawukana bulungi ne zikola engalo ttaano ez’enjawulo. Teebereza, watya singa ``Apoptosis'' eno teyaliwo bulungi? Olwo olususu wakati w’engalo ezo luyinza okusigala nga bwe luli. Embeera eyo tugiyita ``Syndactyly'' . Laba, oluusi kikulu obutoffaali buno okufa.

`(Apoptosis)` nkola ebaawo buli kiseera. Kino kye kiggya obutoffaali obukadde obwonooneddwa mu mibiri gyaffe, ne bukola ekkubo obutoffaali obuto era obulamu obulungi okudda mu kifo kyabwo. Kyokka, singa olw’ensonga ezimu okufa kuno okw’obutoffaali okutegekeddwa tekubaawo bulungi, obutoffaali obwo obukadde, obwonooneddwa butandika okwawukana mu ngeri etafugibwa. Eno y’ensonga enkulu ereetera ebizimba ne kookolo okukula.

Era, oluusi olw'ensobi mu pulogulaamu y'obutoffaali, obutoffaali obutalina kufa nabwo busobola okufa nga buyita mu nkola eno eya ``Apoptosis''. Okugeza, mu bantu abalina endwadde nga Parkinson's disease, Huntington's disease , oba Alzheimer's disease, obutoffaali bw'obusimu (` `Neurons``) mu nkola y'obusimu bufa nnyo. Okufa kuno okw’obutoffaali nga tekunnabaawo kuyinza okukosa endowooza n’entambula.

2. Autophagy oba okuddamu okukola obutoffaali

Autophagy kye kika ekirala eky’okufa kw’obutoffaali okutegekeddwa. Naye ono wa njawulo. Ebiseera ebisinga kibaawo ng’omubiri guli mu kika ky’okunyigirizibwa, okusika omuguwa oba obutaba na mmere. Kiba nga ``enkola y'okuddamu okukola`` ebeerawo ku mutendera gw'obutoffaali mu mubiri gwaffe.

Mu nkola ya ``Autophagy`` (ekitegeeza ``okwelya''), akatoffaali ``kalya'' puloteyina zaako enkadde, ezonoonese, oba ebitundu ebirala ebitayagalwa ebya cytoplasm. Oluvannyuma eddaamu okukola ebitundu ebimenyese era n’ewagira emirimu emikulu egy’obutoffaali. Kiba ng’okugoba ebintu eby’edda mu nnyumba yo n’otwala ebitundu ebikozesebwa n’ozimba ekipya.

Enkola eno eya ``Autophagy'' oluusi ya mugaso nnyo.

• Abaserikale baffe abaserikale bayamba okusaanyaawo ebintu nga akawuka ne bakitiriya ebireeta yinfekisoni.
• Era kiyinza okuyamba okuziyiza obutoffaali obulamu okufuuka obutoffaali bwa kookolo.
• Kiteeberezebwa nti kino era kiyinza okuyamba okuziyiza ebizibu ebirala ng'endwadde z'omutima .

Naye, ku ludda olulala, bw’oba ​​olina kookolo, enkola eno eya ``(Autophagy)`` eyinza okuba ey’obulabe. Kubanga, enkola eno ey’okuddamu okukola ebintu ewa obutoffaali bwa kookolo ebiriisa eby’enjawulo, ekiyinza okwanguya okukula kwabwo. Tekikoma awo, naye obutoffaali buno obuddamu okukozesebwa busobola n’okutaataaganya okusaanyaawo obutoffaali bwa kookolo olw’obujjanjabi bwa kookolo.

Abantu abamu bagezaako okusitula enkola eno eya ``Autophagy'' nga bakugira kalori oba okusiiba, era bwe batyo ne bakola obutoffaali obuto, obulamu obulungi. Naye, tewannabaawo bujulizi bwa ssaayansi bumala okugamba nti okuyingiza ``Autophagy'' mu ngeri ey'ekikugu mu ngeri eno kikola. Ate era, obukwakkulizo obw’amaanyi ku mmere oluusi buyinza okuba obw’obulabe eri obulamu.

3. Necrosis oba okufa kw’obutoffaali mu bwangu

Necrosis si nkola etegekeddwa nga Apoptosis oba Autophagy. Buba kufa kw’obutoffaali mu butanwa oba mu ngeri etasuubirwa. Kino kivaamu okufa kw’ebitundu by’omubiri.Kibaawo. Kuba akafaananyi ng’olina obuvune obw’amaanyi ku mukono oba ku kigere. Mu kiseera ekyo, obutoffaali obufunye obuvune bwonoonese, era ebirimu ne bikulukuta, ekiyinza okwonoona obutoffaali obulamu obubeetoolodde. Kino kireeta okuzimba, okumyuuka, okulumwa, n’ebirala okwonooneka n’okufa kw’obutoffaali obulala.

Ekikulu kiri nti, wadde ng'abasawo basobola okuggyawo ekitundu kino ekifu, okufa kw'ebitundu ebiva ku ``necrosis`` ``kutakyuka``.

Embeera eno, ``Necrosis,'' era esobola okubaawo olw'okukendeera kw'omusaayi n'okuweebwa omukka gwa oxygen mu bitundu by'omubiri ebimu. ``Necrosis'' ebaawo kubanga obutoffaali tebufuna musaayi, oxygen, n'ebiriisa nga tufudde.

Ebimu ku bivaako `(Necrosis)` bye bino:

• Obubenje n'obuvune obw'amaanyi (`Traumatic injuries`).
• Endwadde z'abaserikale b'omubiri .
• Bakitiriya, akawuka, ne ffene ebireeta yinfekisoni.
• Okukozesa obutwa, obutwa n’ebiragalalagala ebimenya amateeka.
• Obujjanjabi bwa kookolo nga obujjanjabi obw'amasannyalaze .

Ebika by’obulwadde bwa Necrosis

Waliwo ebika bya `(Necrosis)` ebiwerako okusinziira ku kivaako n'ekitundu ky'omubiri ekikoseddwa. Ebimu ku bika ebisinga okukozesebwa bye bino:

• Avascular necrosis oba osteonecrosis (okufa kw’ebitundu by’amagumba) .
• Gangrene ( okufa kw’ebitundu by’olususu) .
• Pulp necrosis ( okufa kw’ekikuta ky’erinnyo) .

Okufa kw’obutoffaali obuleetebwa okukola (AICD) kye ki?

Guno mulamwa muzibu, naye kirungi okumanya mu bigambo ebyangu. Okufa kw’obutoffaali okuleetebwa okukola (AICD) kizibu ekiyinza okuva mu kukola obujjanjabi bwa kookolo obuyitibwa chimeric antigen receptor (CAR) T-cell therapy . Kibaawo ng’obutoffaali bwa T, ekika ky’obutoffaali obweru obuyamba okutta obutoffaali bwa kookolo bufa nga tebunnatuuka.

Mu `(CAR) T-cell therapy`, abasawo bakola ekintu nga kino:

1. Obulwadde bwa Leukapheresis nkola eggyawo obutoffaali obweru obweyongedde mu musaayi (nga mw’otwalidde n’obutoffaali bwa T) mu musaayi gw’omulwadde.

2. Olwo obutoffaali buno obwa T ne bukolebwa mu laboratory ne bugezaako okwongera okubukula.

3. Amawulire amapya ag’obuzaale gateekebwa mu butoffaali buno obwa T obukuliddwa mu laabu, ne bukyusibwa ne busobola okunoonya n’okusaanyaawo obutoffaali bwa kookolo.

4. N’ekisembayo, obutoffaali bwa T obukyusiddwa buddamu okuyingizibwa mu musaayi gw’omulwadde. Olwo ne banoonya obutoffaali bwa kookolo ne busaanyaawo.

Naye, ebyembi, obutoffaali buno obwa T bwe bukozesebwa ne bukuzibwa mu laabu, oluusi okufa kuno okw'obutoffaali ``AICD'' kuyinza okubaawo. Olwo, omuwendo gw’obutoffaali bwa T obukyusiddwa obuliwo okulwanyisa kookolo gukendeera.

Bye tulina okujjukira okuva mu bino byonna (Obubaka bwa Take-Home)

Wadde ekigambo ‘okufa kw’obutoffaali’ kiyinza okuwulikika ng’ekitiisa katono, kati okimanyi nti eno nkola ebeerawo mu butonde mu mibiri gyaffe ebiseera ebisinga era yeetaagibwa nnyo mu bulamu bwaffe obulungi .

• Okufa kw’obutoffaali okutegekeddwa okuyitibwa apoptosis kuggyawo obutoffaali obukadde, obwonooneddwa era ne kuggulawo ekifo obutoffaali obuto era obulamu obulungi.
• Okuyita mu nkola eyitibwa autophagy , obutoffaali buddamu okukola ebitundu byabwo ne bukola bulungi.
• Wabula okufa kw’obutoffaali olw’obubenje nga necrosis kya bulabe era kuyinza okuleeta okwonooneka kw’ebitundu by’omubiri okw’olubeerera.
• Ate era, oluusi ne `(Apoptosis)` ne `(Autophagy)` bisobola okuleeta endwadde nga kookolo.

Kyokka emibiri gyaffe bulijjo giba bbize okuddaabiriza obutoffaali obwonooneddwa n’okuzzaawo obwo obufa. N’olwekyo, kikulu okumanya enkola eno. Bw’oba ​​olina ekibuuzo kyonna oba ekikweraliikiriza ku nsonga eno, tolwawo kwogera na musawo.

` Okufa kw’obutoffaali, obutoffaali, apoptosis, autophagy, necrosis, enkola y’omubiri, okugabanya obutoffaali