Ffenna tufuna okutya katono nga tuwulira ekigambo ‘amasavu’, si bwe kiri? Tukilowoozaako ng’ekintu ekibi eri omubiri ne kituleetera okweyongera okugejja. Naye okimanyi nti amasavu gonna agali mu mibiri gyaffe si mabi? Mu butuufu, waliwo ekika ky’amasavu eky’enjawulo ekikulu ennyo eri emibiri gyaffe, ekituyamba, era nga gakola emirimu ‘emirungi’. Ogwo ge masavu 'amalungi' ge tugenda okwogerako leero, era ago ge
masavu ga kitaka !
Amasavu gano aga kitaka kye ki?
Okay, kale amasavu gano aga kitaka ge ga ki? Abantu abamu era bagiyita
brown adipose tissue .
Mu ngeri ennyangu, kino kika kya masavu eky’enjawulo mu mibiri gyaffe. Omulimu gwayo omukulu kwe kutubugumya nga tuwulira ennyogovu. Kiringa akabugumu akatono munda mu mibiri gyaffe.
Tekikoma awo, wabula amasavu gano aga kitaka gasobola okutereka amaanyi ate gayamba n’omubiri gwaffe okwokya kalori. Etandika okukola, kwe kugamba, efuuka ekola, ng’obudde obw’ennyogovu butuuse.
Bika ki eby’amasavu ebiri mu mibiri gyaffe?
Kati laba, waliwo ebika by’amasavu eby’enjawulo mu mibiri gyaffe. Nga bwe waliwo ebika by’abantu eby’enjawulo mu maka agamu. Abasawo bino babitegeera okusinziira ku langi yaabyo n’omulimu gwe bakola. Waliwo ebika ebikulu bisatu:
- Amasavu Amazungu : Gano ge masavu agasinga obungi mu mubiri gwaffe. Kitereka amaanyi era gateekebwa mu bitundu by’omubiri eby’enjawulo. Era kiyamba okukuuma ebitundu byaffe eby’omunda. Kyokka singa amasavu gano amazungu gayitiridde, gayinza okuvaako omugejjo . Kino kitegeeza nti kiyinza okuba ‘bad boy’ katono singa tekifugibwa.
- Brown Fat: Ono ye muzannyi waffe omukulu. Butono okusinga amasavu amazungu. Etereka amaanyi n’ayokya amaanyi ago okusobola okufuga ebbugumu ly’omubiri gwaffe. Naddala nga tunaatera okufuna omusujja , kwe kugamba, nga tetunnafuna musujja, amasavu gano aga kitaka ge gabugumya omubiri n’okwokya kalori okuyita mu thermogenesis . Era ayamba okufuga ssukaali mu musaayi (glucose) n’enkyukakyuka y’amasavu . Ono ye 'omulenzi omulungi'.
- Amasavu ga Beige: Ono wa njawulo katono. Kiba kigatta obutoffaali bw’amasavu obweru n’obutoffaali bwa kitaka. Kiringa eky’omugatte. Obutoffaali buno era bwokya kalori ne bufuga ebbugumu ly’omubiri. Kye bakola kwe kukyusa obutoffaali bw’amasavu obweru ne bufuuka obutoffaali bw’amasavu obwa kitaka. Kwe kugamba, kiringa okuyamba okufuula ‘omwana omubi’ ‘omwana omulungi.’
Amasavu ga kitaka gakola ki ddala?
Kale, kiki ddala amasavu gano aga kitaka gakola ki? Omulimu gwayo omukulu kwe kukola ebbugumu okubugumya omusaayi gwaffe. Jjukira engeri gye nnagambye nti etandika okukola nga tuwulira ennyogovu era nga tunaatera okukankana? Wano amasavu ga kitaka we gafuuka agakola. Omanyi engeri gye kivaamu ebbugumu? Kimenya molekyu za glucose n’amasavu mu musaayi gwaffe. Enkola eno eyitibwa
thermogenesis . Ekyo kye kiyamba okukuuma ebbugumu ly’omubiri gwaffe nga liri ku mutindo omutuufu.
Amasavu ga kitaka gayamba gatya omubiri gwaffe?
Kale, waliwo engeri eziwerako amasavu gano aga kitaka gye gayambamu omubiri gwaffe. Ka tulabe kye bali:
- Akuuma ebbugumu ly’omubiri gwo obulungi n’okukuziyiza okunnyogoga.
- Kifulumya n'okutereka amaanyi .
- Ayokya kalori, ekitegeeza nti era asobola okukuyamba okugejja.
- Ayamba okufuga ssukaali ne insulini mu musaayi . Kino era kiyinza okuba ekikulu eri abantu abalina ssukaali .
Amasavu ga kitaka gafaanana gatya? Lwaki kiba kya kitaka?
Teebereza, amasavu gano aga kitaka gafaanana gatya? Mu butuufu bino bikolebwa obutoffaali bw’amasavu obutono ennyo. Munda mu butoffaali buno mulimu asidi z’amasavu ne glycerol. Ekyewuunyisa kiri nti, ensengekera, kwe kugamba, enkula, y’amasavu gano aga kitaka efaanagana nnyo n’ebinywa byaffe okusinga amasavu amalala. Kubanga obutoffaali obutereka amasavu gano aga kitaka mu bitundu by’omubiri (
adipocytes ) butono nnyo. Amasavu bwe gakuŋŋaanyizibwa mu mubiri, obutundutundu bw’amasavu buno bwe bukwatagana ne bukola omupiira. Bw’otunuulira amasavu aga kitaka, galabika ng’omupiira omutono ogwa kitaka, ogw’ekika kya oval. Kati ekyebuuzibwa, lwaki kino kiyitibwa ‘brown’ fat? Lwaki si mweru? Langi ez’enjawulo ez’amasavu agali mu mibiri gyaffe zitutegeeza kye gakola. Ensonga lwaki amasavu aga kitaka ga kitaka eri nti obutoffaali obwo obw'amasavu bujjudde ebintu ebiyitibwa
mitochondria . Oboolyawo wawulira ku mitochondria ng’oli mu ssomero. Ziringa ‘amabibiro g’amasannyalaze’ ag’obutoffaali. Mitochondria zino zirimu ekyuma ekinene. Olw’ekyuma ekyo amasavu aga kitaka gafuna langi yaago eya kitaka.
Amasavu ga kitaka gasangibwa wa?
Omanyi amasavu ga kitaka g’omwana eyaakazaalibwa we gasangibwa? Ku mugongo, mu bulago ne ku bibegabega byabwe. Ekyo kye kiyamba abalongo okugumira ennyonta. Mu buto, kwe kugamba, bwe bakula katono, nga bakyali bato, amasavu gano aga kitaka gasaasaanyizibwa mu mubiri gwonna. Naye bwe tuba abakulu, amasavu gano aga kitaka gasinga kubeera mu bulago, okwetooloola ensigo, okumpi
n’endwadde z’ekibumba , okwetooloola
aorta , ne wakati mu kifuba (
mediastinum ).
Amasavu ga kitaka ge tulina mu mibiri gyaffe?
Kale amasavu ga kitaka ge tulina mu mibiri gyaffe? Mu butuufu, omuwendo guno gwawukana okusinziira ku muntu. Naye ekintu kimu kye tulina okwogerwa, tetulina masavu ga kitaka nga bwe tulina amasavu amazungu. Obuzito bw’omubiri gwonna ogw’omwana eyaakazaalibwa
Amasavu ga kitaka gali wakati wa 2% ne 5%. Bwe bakula, kwe kugamba, mu buto n’obuvubuka, obungi bw’amasavu gano aga kitaka bukendeera mpolampola. Ng’abantu abakulu, tulina amasavu ga kitaka matono nnyo mu mibiri gyaffe. Wabula kizuuliddwa nti abantu abagonvu, abakola dduyiro ennyo, kwe kugamba, bannabyamizannyo, balina amasavu aga kitaka mu mibiri gyabwe okusinga abalala. Endwadde ezikwata amasavu aga kitaka
Okay, kati ka tulabe embeera z’obujjanjabi eziyinza okukosa amasavu gano ag’omuwendo aga kitaka.- Anorexia Nervosa: Buno bulwadde bwa bwongo obukwatagana n’okulya. Mu kino, omuntu yeettanira nnyo emmere n’afiirwa amasavu amazungu n’aga kitaka. Kino kikosa engeri omubiri gye gufulumyamu amaanyi ne kizibuwalira okutereeza ebbugumu ly’omubiri.
- Obutabeera na Leptin mu kuzaalibwa: Leptin busimu obukolebwa obutoffaali bwaffe obw’amasavu (adipose tissue). Busimu buno bwe bufuga obuzito bw’omubiri. Singa omuntu aba n’obutaba na leptin buno, obutoffaali bwe obw’amasavu tebukola bulungi busimu bwa leptin. Olwo obulabe bw’okugejja buba bungi.
- Lipodystrophy: Embeera eno ekosa obungi bw’amasavu mu mubiri n’engeri gye gamenyekamu. Omuntu alina obulwadde bwa lipodystrophy afuna obuzibu okutereka amaanyi okuva mu mmere.
- Lipoma: Zino bizimba bya masavu ebikola wansi w’olususu. Ebiseera ebisinga tezireeta bulumi oba obuzibu obw’amaanyi mu bulamu. Kyokka singa zitawaanya omuntu, abasawo basobola okuggyamu amasavu.
Enkola z’okukebera obulamu bw’amasavu aga kitaka
Abasawo bakola okukebera okuwerako okulaba oba obutoffaali bw’amasavu mu mubiri gwo naddala obw’amasavu aga kitaka bulamu bulungi. Ebimu ku byo mulimu:- Okukebera omusaayi : Okugeza, okukebera nga okubala omusaayi mu bujjuvu (CBC) .
- PET scan, CT scan: Bino bika bya sikaani eby’enjawulo . Basobola okulaba ebiri munda mu mubiri, n’engeri amasavu gye gaterekebwamu.
- MRI scan (MRI): Kino kika kya sikaani ekirala eky’amaanyi.
Tugejja tutya mu mibiri gyaffe?
Tufuna tutya amasavu mu mmere gye tulya? Kyangu nnyo. Amasavu geetaagisa nnyo kubanga geetaagisa okukola amaanyi. Waliwo emmere nnyingi eziwa amasavu ‘amalungi’. Wano waliwo ebyokulabirako ebitonotono:- Ovakedo
- Entangawuuzi n’ensigo (kaawa, ensigo za chia, ensigo za flax) .
- Ebyennyanja (salmon, tuna empya) .
- Yogati
Bulijjo jjukira nti,Emmere zino ennungi ezirimu amasavu zirina okuliibwa mu bbalansi n’enva endiirwa, ebibala, emmere ey’empeke, ebirungo ebizimba omubiri, n’emmere ey’amata. Wano we watuukibwako emmere ey’enjawulo entuufu. Ng’oggyeeko ekyo, waliwo emmere gye tusaanidde okwewala okutangira amasavu ‘amabi’ okukuŋŋaanyizibwa mu mubiri. Bbo bali:- Amasavu amangi: Gano gasangibwa mu bintu ng’emmere erongooseddwa, margarine, chocolate omweru, ne dessert.
- Amasavu agayitibwa Trans fats: Gano gasangibwa mu bintu ng’emmere enkasiike n’emmere efumbiddwa mu bbugumu.
Oyongera otya obutoffaali bw’amasavu aga kitaka?
Abantu bangi beebuuza nti, ‘Nnyinza ntya okwongera ku bungi bw’obutoffaali bw’amasavu aga kitaka mu mubiri gwange?’ Kino kikulu nnyo naddala eri abo abagezaako okugejja n’okwokya kalori. Mu butuufu, waliwo ebintu ebiwerako bye tuyinza okukola okwongera ku masavu ga kitaka mu mibiri gyaffe:- Okukkakkanya ebbugumu: Jjukira nti amasavu ga kitaka gakola mu bbugumu eryannyogoga, ng’omubiri gunaatera okukankana. Okunoonyereza okumu kulaga nti ebintu ng’okukendeeza ku bbugumu ly’empewo (AC) mu maka go, okunaaba mu mazzi agannyogoga, oba okubbira mu mazzi ga ice bisobola okukola amasavu aga kitaka, okuyamba omubiri okukola amasavu aga kitaka amangi, n’okwokya kalori nnyingi. Kyokka bino birina okukolebwa n’obwegendereza era ng’abasawo babuulirirwa.
- Okwongera ekyuma mu mmere yo: Tukola amasavu mu mmere. Okuva amasavu aga kitaka bwe galimu ekyuma ekinene, kakasa nti ofuna ekyuma ekimala. Lya emmere erimu ekyuma ng’ennyama, eby’ennyanja, emmere ey’empeke, enva endiirwa ezibisi, n’ebinyeebwa. Bwe kiba kyetaagisa osobola n’okumira eddagala eriweweeza ku kyuma ng’olina amagezi g’omusawo. Kino kijja kuyamba okukuuma obutoffaali bw’amasavu nga bulamu bulungi.
- Lya emmere ennungi: Endya kikulu nnyo eri obulamu bwaffe. Naddala bw’oba oyagala okwongera ku masavu ga kitaka. Okunoonyereza okumu kulaga nti emmere ezimu, gamba ng’obulo n’ezabbibu zirimu eddagala eriyitibwa ursolic acid , eriyamba okukola amasavu aga kitaka. Lya ekimala enjala yo yokka, weewale okulya ennyo, era weewale emmere erongooseddwa.
- Dduyiro: Okusigala ng’okola dduyiro y’engeri ennungi ey’okukuuma obulamu obulungi. Okunoonyereza kulaga nti bwe tukola dduyiro, obusimu obuyitibwa irisin bukola mu mubiri gwaffe. Obusimu buno obwa irisin ‘bugamba’ amasavu amazungu mu mubiri gwaffe okwokya ng’amasavu aga kitaka. Enkola eno y’etonda ‘amasavu ga beige’ ge nnayogeddeko emabegako.
Kale, bubaka ki bwe tusaanidde okujjukira okuva mu mboozi ya leero?
Mu ngeri ennyangu, amasavu gano aga kitaka ga mugaso nnyo eri emibiri gyaffe. Ayamba okutereeza ebbugumu ly’omubiri gwaffe n’okufulumya amaanyi mu mbeera ennyogovu. Okusobola okukuuma amasavu gano ag’omuwendo aga kitaka mu mibiri gyaffe nga malamu bulungi, osobola okulya emmere ennungi, okukola dduyiro buli kiseera, n’okugezaako okukendeeza ku bbugumu ly’omubiri gwo mu mbeera efugibwa, gamba ng’okunaaba ennyogovu ennaku ntono mu wiiki.Naye nga tonnaba kukola kintu kyonna naddala bw’oba tokakasa kika kya mmere oba mulimu ki ogukusaanira, kakasa nti oyogera n’omusawo. Mu ngeri eyo, osobola okumanya ekisinga obulungi eri omubiri gwo.
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