Sự tiết sữa và cho con bú

Sir ti€t sQa

& cho con bu

ngfldi me, chdc nfing chinh cua viec titft

sda Id cung ctfp chtft dinh dfldng vd cfic

chat bdo vfi thufic hfi miln dich eho tr^ sau

smh. Qufi trinh titft sda tao nfin mdt thdi ky vd sinh

0 me de me tfip trung nudi con nunh.

Vao tudi day thi, dfldi sfl tdc ddng cua eac nfii tiet

to buong trdng, cdc tfng tuytfn sfla d vii bdt ddu tdng

smh, phan nhanh vfio to chdc md. Sau dd d dau mdt

cua ong se xutft hifin cdc nu lfi ngudn goc chtf titft sfla.

Khi CO thai, nhu mfi tuytfn vu tfing sinh, eac nu bitfn

thanh tieu thuy, cdc tfng tuytfn sfla ddi ra vd phfin

nhanh. Td tudn thd 24 cua thai ky cd thd ngfldi me

san xuat cdc nfii tiet ttf:

- Progesteron: Tdc ddng dtfn sfl phdt sinh kfch cd

cua cac nu vd cdc tidu thuy. Ndng dp eao progesteron dc

che su tiet sfla trfldc sinh, sau sinh progesteron gidm.

- Estrogen: Kich thich hfi thtfng tfng dan sda phdt

trien. Gid'ng nhfl progesteron, ndng dfi eao estrogen dc

che sir tiet sfla. Vdo liic sinh estrogen gidm xutfng vd

giu' nhu vay trong vdi thdng ddu giup vii me titft sfla.

- Prolactin: Dfldc ttf bdo di toan ciia tuye'n yen

tiet ra trong thdi ky thai nghfin. Prolactin gdp phdn

gia tanf,' HU phfit tritfn vd bifit hda cua cdc nu, dnh

hudng don sfl bifit hda cua tfng dan sda. Prolactin

la yeu td chinh trong vific san xud't sda. Ndng dfi

Prolactin tdng vl ban dem, cao nhd't tfl 2 dtfn 6 gid

Bdng vd dn dinh trong ngdy. Khi vii bi kich thich,

ndng dfi prolactin trong mdu gia tang vd dat dinh 45

phdt sau dd, rdi trd ve tinh trgng liic ddu 3 gid sau.

Sfl phdng thich prolactin kich thxeh cfic ttf bfio 6 nu

DgUc sdn xutft sda.

- ACTH vd Glucocorticoid: Cd vai trd gdy tiet sda.

- GH: Nfii titft to tdng trfldng nay cd ed'u true khd

gitfng prolactin, nd c6 vai trd gdp phdn duy tri sfl

sdn xutft sda.

- TSH: Ndng dfi gia tdng trong thai ky, duy trt sfl

sin xutft sda.

- Oxytocin: Lfim eo cd trdn cua td eung trong sud't

qui tilnh sinh vd sau sinh kd cd luc cflc khodi. Sau sinh,

Oxytocin co Idp cd trdn ciia cdc te' bfio bao quanh cdc

•HI khitfn fip sfla mdi dfldc sdn xutft chdy vdo hfi thtfng

<Jdn siJa. Oxytocin cdn cdn thifi't eho phdn xa tong sfla.

- Lactogen nhau thai: Td thdng thd 2 cua thai ky,

fihau thai sdn xutft mfit Ifldng ldn lactogen giup phdt

hidn vu, nun vu, qudng vu trfldc sinh.

Hifin tiipng chtf titft sfla bdt ddu ngay td thdng thd

8 ciia thai 1^, tao ra sda non. Sfla non chda nhilu

Iwtose, protein, bach cdu, IgA hdn sfla thfldng. IgA

Id mOt globulin miln dich cd vai trd bao hoc, tao ldp

THU6C & sCfC KH6 E stf 489 (1.12.201.1)

-» BS. NGO VAN TUAN

Idt eua rudt chfla trfldng thdnh d tre sd sinh. IgA cdn

gdp phan ngdn cdnh cdc ytfu to gay bfinh xfim nhdp

vdo hfi miln dich cua trd. Qua 2 tudn ddu sau sinh

sfl sdn xuat sfla non chfim ddn rdi ngitog han dtf sdn

xuat sda thudng.

Sfla me dfldc titft ra cdng nhieu thi bau vu cdng

san xuat sda ra nhilu chiftig nay. Vi vdy sfl cung ctfp

sfla cdn chiu dnh hfldng bdi Ifldng bd bu va khd ndng

titft sda cua vu me. Sfl cung ctfp sda me giam di Id

do: sfl titft sfla khfing dij; trd khdng bu sda ttft cd thd

V khuytft tfit eau tnic hfim hodc mifing tre chfla bitft

cfich bii ttft, nhiJng rtfi loan ndi titft b ngfldi me (hitfm),

md vd giam san, me suy dinh dfldng.

Sau khi sinh, vific ddu tien cua ngfldi me Id cho con

bd bdi vi sfla me Id ngudn dinh dfldng tot nhtft cho

tre (ddc bifit Id sda non). Cho con bii lfi ndn tdng dd

nay nd tinh cam me con. Tre bd me giup me trdnh

thai trong nhdng thdng ddu sau dl.

- Bdt dau cho trfi bu khi ndo: Cho bu cdng sdm

cdng tot, ngay sau dl. Tuy nhifin c6 the ch$m hdn

nfi'u tinh trang sdc khoe eua me cd vtfn dl nhfl me

phdi md lay thai, me hi bfinh van tim... hodc trd dang

dfldc hdi sdc tich cflc. Cho trd bd sdm dtf trd nh$n

dfldc sfla non. Dfing tfic bu kfch thich tuytfn vu titft

sfla nhanh vd nhilu. Khi trd ngfim mim vu se kich