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Hormones femelles: effets sur la peau, les poils, le corps

 
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krikri
grand papillon

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Messages: 1 123
Sexe: Femme, MTF
Suivi psy: Oui
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 MessagePosté le: 02/02/2014 23:16:09    Sujet du message: Hormones femelles: effets sur la peau, les poils, le corps Répondre en citant Back to top

Malheureusement en anglais mais TRÈS INTÉRESSANT!

From Volume 64, Number 1
OBSTETRICAL AND GYNECOLOGICAL SURVEY
Copyright © 2009
by Lippincott Williams & Wilkins

Physiological Changes Associated with the Menstrual Cycle
A Review


Quelques extraits:

"The skin is the largest organ in the body, and one replete with estrogen receptors and to a lesser extent, progesterone and androgen receptors (6)."

"Hormone replacement therapy (HRT) studies, in postmenopausal women, demonstrate that it is declining estrogen levels, as opposed to other aspects of aging, that are associated with undesirable skin changes that accompany aging (9)."

"The effects of progesterone on the skin are less Understood"

"The role of progesterone on sebum production is controversial and therefore inconclusive (19)."

"Effects of estrogens on skin
Increased skin thickness (4)
Decreased collagen breakdown (84)
Increased collagen production (85)
Increased production of collagen fibers (86)
Increased epidermal hyperpigmentation (81)
Decreased sebum (87)
Skin function Increased water-binding capacity (8
Increased fluid retention (89)
Decreased cellular-immune response (55)
Increased vasodilation (4
Increased elasticity (90)
Improved wound healing (91)"

"Declines in estrogen in menopause are clearly associated with the thinning of the skin observed as women age. The direct effects of estrogen with regard to skin thickness are confirmed by the observation that estrogen replacement in menopause is consistently associated with a thickening of the skin. HRT has achieved increases in skin thickness of up to 15% (20)."

"Subcutaneous fat at both the thigh and abdomen reached maximum thicknesses during the menstrual flow, decreasing during the follicular phase to reach a trough at day 22."

"Similar studies, looking at changes in the fat content in the breast, have demonstrated similar increases in fatty tissue volume over the menstrual cycle"

"The age-associated decline in estrogen is accompanied by drier skin as the water-holding capacity is reduced (20)."

"Improvements in water retention are a result of an increase in acid mucopolysaccharides and hyaluronic acid in the dermis (29)."

"Estrogen replacement therapy has been demonstrated to improve skin hydration (4), and decrease the risk of postmenopausal dry skin (20). Elevated endogenous estrogen levels during pregnancy also improve the hydroscopic properties of the dermis (4)."

"most subjects exhibited the driest skin during the menstrual flow, when circulating estrogen levels are at their lowest (2)."

"Estrogen in replacement therapy both prevents collagen loss and stimulates increases in collagen production. A large number of studies have demonstrated an increase, with HRT, of skin thickness associated with higher skin collagen content. Increases in skin collagen as high as 5.1% have been demonstrated with exogenous estrogen through HRT, with increases in dermal collagen as high as 6.5% (20)."

"At the menopause, a rapid decrease in skin elasticity begins (4,14), and this can be slowed or reversed with estrogen replacement therapy (4). Prevention of elasticity loss has also been reported with the use of HRT (14)."

"The consequences of estrogen deficit after menopause include increased wrinkling."

"Estrogen cream produced significant improvement in wrinkles in clinical evaluation (4,20)"

"However, although the majority of studies site an improvement in skin with HRT, some do not (32)"

The effects of estrogen on pigmentation were first implied by observed changes in pigmentation char- acteristic of pregnancy: patches of increased pigmentation on the face known as chloasma, as well as darkening of the skin of the areolae, the perineum, and the skin over the linea alba, which fade shortly after delivery (29). Application of estrogen-containing ointment to children results in hyperpigmentation, when applied to the genital area as well as the nipples and linea alba (33). Hyperpigmentation is also observed in some patients with use of oral contraceptives (20)"

"The increase in pigmentation was reported to be most noticeable under the eye (29)."

"Several studies have found an increased susceptibility to contact irritation in the premenstrual part of the menstrual cycle in comparison with the follicular phase (37)"

"the highest UVB susceptibility to occur on days 20 to 28 (2)."

"The estrogen levels of pregnancy result in an increase in hair density (41), as estrogen acts to prolong the anagen phase of the hair growth cycle so that daily shedding decreases. After delivery, plummeting estrogen levels cause all hairs to enter the telogen phase simultaneously (20), resulting in significant hair loss (."

"Androgenetic alopecia (female-pattern alopecia) often follows estrogen decline, characterized by miniaturization of androgen-sensitive hair follicles, it may be helped with antiandrogens or topical estrogen (20) or topical minoxidil (42)."

"Vasodilation increases steadily in the follicular phase, reaching a peak about 1 week before the onset of menses (45). In the luteal (premenstrual) phase, progesterone reaches its highest level but estrogen concentration is high as well. Vasodilation may be due to the combined effect of the 2 hormones."

"Peripheral vascular resistance is negatively correlated with circulating levels of estradiol, indicating that estradiol may exert a protective influence by alterations of peripheral microvasculature (46)."

"One well-validated finding in women is that core temperature is increased by 0.3° to 0.5° in the luteal phase compared to the follicular phase (49)."

"Core temperature, in other words, is consistently increased when both progesterone and estrogen levels are elevated, as in the luteal phase; elevation of estrogen levels alone is not sufficient."

"The influences of fluctuating menstrual cycle hormones on the severity of concurrent disease are well documented throughout the literature. The vast majority have been observed to worsen during the luteal phase, including asthma, acne, epilepsy, migraines, myasthenia gravis, supraventricular tachycardia, sleeping disorders, Raynaud syndrome, schizophrenia, glaucoma, insulin resistance, and many viral diseases (62,72). Chronic venous insufficiency often worsens in the luteal phase due to increased vasodilation (45). Bacterial vaginosis appears to become worse during the follicular phase (72)."

"The period before menses, particular the week or so before, has been associated with exacerbation of acne vulgaris, rosacea, cutaneous lupus erythematosus, psoriasis, atopic eczema, lichen planus, dermatitis herpetiformis, erythema multiforme, pompholyx, and urticaria (13,19)."
 
Publicité






 MessagePosté le: 02/02/2014 23:16:09    Sujet du message: Publicité Back to top

PublicitéSupprimer les publicités ?
 
MaudeB
grande chenille

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 MessagePosté le: 08/02/2014 23:42:40    Sujet du message: Hormones femelles: effets sur la peau, les poils, le corps Répondre en citant Back to top

Citation:
"One well-validated finding in women is that core temperature is increased by 0.3° to 0.5° in the luteal phase compared to the follicular phase (49)."

"Core temperature, in other words, is consistently increased when both progesterone and estrogen levels are elevated, as in the luteal phase; elevation of estrogen levels alone is not sufficient."


Core temperature est peut-être plus élevée mais moi je gèle depuis que je suis hormonée !
_________________
Maude
"I Can't Deny What I Believe, I Can't Be What I'm Not..." Home By Now/No Matter What - Meat Loaf
 
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Hyraelle
grand papillon

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Inscrit le: 01 Déc 2007
Messages: 2 136
Localisation: Saint-eustache
Sexe: Femme
Hormoné(e): Oui
Changement de nom: Fait
Vaginoplastie: Fait

 MessagePosté le: 09/02/2014 03:10:24    Sujet du message: Hormones femelles: effets sur la peau, les poils, le corps Répondre en citant Back to top

Ouaip ca c'est une évidence !
 
Soune
grand papillon

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Vaginoplastie: Fait

 MessagePosté le: 09/02/2014 08:13:45    Sujet du message: Hormones femelles: effets sur la peau, les poils, le corps Répondre en citant Back to top

ouaip, gèle moi-aussi, comme toutes celles que je connais...
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Il ne me reste qu'à m'épanouir!
 
krikri
grand papillon

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Inscrit le: 17 Oct 2012
Messages: 1 123
Sexe: Femme, MTF
Suivi psy: Oui
Hormoné(e): Oui
Changement de nom: Fait
Changement de mention de sexe: Fait
Vaginoplastie: Fait

 MessagePosté le: 09/02/2014 11:00:47    Sujet du message: Hormones femelles: effets sur la peau, les poils, le corps Répondre en citant Back to top

Quand je prends de la progestérone, presque à toutes les fois, je remarque que la chaleur de mon corps augmente. Et puis depuis que je prends l'estrogène par voie rectale, je ressens la même chose. En plus, l'effet dure bcp plus longtemps. J'ai aussi constaté que j'ai bcp moins ce problème quand je suis reposée, calme et/ou quand je prends plus d'estrogène.

Donc, je crois qu'un manque d'hormones et/ou être tendu (le stress) contribuent en grande partie.
 
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