Group items tagged fertility - Dr. Goodyear

Effects of hormones on skin wrinkles and rigidity vary by race/ethnicity: fou... - 0 views

www.fertstert.org/...fulltext

hormones skin wrinkles estrogen

shared by Nathan Goodyear on 30 Nov 16 - No Cached

Nathan Goodyear on 30 Nov 16

new study concludes that hormone therapy does not improve skin aging. Though I would like to see hormone levels evaluated to assure physiologic hormone levels were obtained to conclude this lack of relationship.

<div class="cArrow"> </div><div class="cContentInner">new study concludes that hormone therapy does not improve skin aging. Though I would like to see hormone levels evaluated to assure physiologic hormone levels were obtained to conclude this lack of relationship.</div>

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Cigarette smoking and hormones : Current Opinion in Obstetrics and Gynecology - 0 views

journals.lww.com/...te_smoking_and_hormones.3.aspx

smoking tobacco CYP1A1 CYP1B1 estrogen hormones estrogen metabolism estrogen metabolites

shared by Nathan Goodyear on 05 Dec 16 - No Cached

Epidemiologic studies worldwide have established that exposure to cigarette smoke is an important cause of estrogen deficiency.
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Nathan Goodyear on 05 Dec 16

tobacco smoke alters estrogen metabolism. Increase in CYP1B1 and CYP1B1 are the result of tobacco smoke.

<div class="cArrow"> </div><div class="cContentInner">tobacco smoke alters estrogen metabolism. Increase in CYP1B1 and CYP1B1 are the result of tobacco smoke.</div>

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Luteal start vaginal micronized progesterone improves pregnancy success in women with r... - 0 views

www.fertstert.org/...abstract

progesterone infertility miscarriage pregnancy hormones women

shared by Nathan Goodyear on 18 Jan 17 - No Cached

Nathan Goodyear on 18 Jan 17

Recurrent early pregnancy losses can be prevented not with provera, not with progestin, but with progesterone. The use of progesterone by the functional medicine movement has long been advocated and supported in the science; now the allopathic medicine will try to claim it as its own.

<div class="cArrow"> </div><div class="cContentInner">Recurrent early pregnancy losses can be prevented not with provera, not with progestin, but with progesterone. The use of progesterone by the functional medicine movement has long been advocated and supported in the science; now the allopathic medicine will try to claim it as its own.</div>

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Dog sperm quality decline is blamed on pet food chemicals | New Scientist - 0 views

www.newscientist.com/...s-blamed-on-pet-food-chemicals

sperm count low T low Testosterone environment EDC endocrine disrupting chemicals male fertility

shared by Nathan Goodyear on 10 Aug 16 - No Cached

Nathan Goodyear on 10 Aug 16

26 year study of dogs finds declining sperm count equivalent to that in men. The decline was found to occur at a rate of 1.2% to 2.5% annually over course of study. The authors pointed to EDC's in food.

<div class="cArrow"> </div><div class="cContentInner">26 year study of dogs finds declining sperm count equivalent to that in men. The decline was found to occur at a rate of 1.2% to 2.5% annually over course of study. The authors pointed to EDC's in food.</div>

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Caffeine Intake and Semen Quality in a Population of 2,554 Young Danish Men - 0 views

aje.oxfordjournals.org/...883.abstract

coke soda sperm fertility men infertility

shared by Nathan Goodyear on 07 Jul 16 - No Cached

Nathan Goodyear on 07 Jul 16

high coke intake (defined as 1 L or greater) daily associated with lower sperm count and concentration.

<div class="cArrow"> </div><div class="cContentInner">high coke intake (defined as 1 L or greater) daily associated with lower sperm count and concentration. </div>

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[Hormonal changes in fertile women with quiescent systemic lupus erythematosus] - Abstr... - 0 views

europepmc.org/...7669873

lupus SLE autoimmune disease autoimmune disease progesterone hormones

shared by Nathan Goodyear on 23 Mar 16 - No Cached

Nathan Goodyear on 23 Mar 16

Abstract suggests that low progesterone plays a role in Lupus.

<div class="cArrow"> </div><div class="cContentInner">Abstract suggests that low progesterone plays a role in Lupus.</div>

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The effect of oral micronized progesterone on ... [Fertil Steril. 2010] - PubMed - NCBI - 0 views

www.ncbi.nlm.nih.gov/...19409554

progesterone metabolic syndrome PCOS

shared by Nathan Goodyear on 01 Sep 13 - No Cached

Nathan Goodyear on 01 Sep 13

The effect of oral micronized progesterone on hormonal and metabolic parameters in anovulatory patients with polycystic ovary syndrome.

<div class="cArrow"> </div><div class="cContentInner">The effect of oral micronized progesterone on hormonal and metabolic parameters in anovulatory patients with polycystic ovary syndrome.</div>

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Metabolic influences on neuroendocrine regulation of reproduction - 0 views

www.ncbi.nlm.nih.gov/...PMC3898855

metabolism metabolic regulation reproduction Leptin Ghrelin Insulin Kisspeptin GNRH

shared by Nathan Goodyear on 17 Feb 14 - No Cached

Energy storage occurs mainly at the level of white adipose tissue, where adipocytes secrete the anorexigenic adipokine leptin
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humans and laboratory animals with leptin or insulin deficiency or resistance and/or increased ghrelin levels exhibit delayed or absent puberty and frequently display hypogonadotropic hypogonadism, which prevents fertility
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Ghrelin suppresses pulsatile gonadotropin-releasing hormone (GnRH) release [14,15], thus serving as a signal to suppress reproduction in times of famine
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...4 more annotations...
GnRH neurons have been shown to express insulin receptor mRNA and protein [27] and are activated by insulin
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AgRP and NPY have the opposite (orexigenic) effect, inducing food intake.
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Neuropeptides derived from POMC/CART neurons exert a potent anorectic action, thus decreasing food intake and body weight
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Kisspeptins (encoded by KISS1) have been identified in the last decade as the most potent secretagogues of GnRH release.
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Nathan Goodyear on 17 Feb 14

Good, although brief, discussion of the interaction between metabolism and hormones. Kisspeptin is a GNRH secreatagogue "upstream". Insulin, Leptin, and Gherlin can inhibit GNRH through resistance and low levels. Probably a U shaped graph of optimal activity.

<div class="cArrow"> </div><div class="cContentInner">Good, although brief, discussion of the interaction between metabolism and hormones. Kisspeptin is a GNRH secreatagogue "upstream". Insulin, Leptin, and Gherlin can inhibit GNRH through resistance and low levels. Probably a U shaped graph of optimal activity.</div>

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Long-term effect of ciprofloxacin on tes... [Int J Fertil Steril. 2013] - PubMed - NCBI - 0 views

www.ncbi.nlm.nih.gov/...24520454

Testosterone cipro ciprofloxacin antibiotics infertility Leydig cells gonadotropins

shared by Nathan Goodyear on 15 Feb 14 - No Cached

Nathan Goodyear on 15 Feb 14

mouse study finds that long-term cipro can lead to biochemical disruption of the testicles resulting in infertility, effected sperm counts, and decreased Testosterone.

<div class="cArrow"> </div><div class="cContentInner">mouse study finds that long-term cipro can lead to biochemical disruption of the testicles resulting in infertility, effected sperm counts, and decreased Testosterone.</div>

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The Effect of Oral Feeding of Tribulus t... [Int J Fertil Steril. 2013] - PubMed - NCBI - 0 views

www.ncbi.nlm.nih.gov/...24520465

Tribulus Tribulus terrestris low T Testosterone opiates opiate addiction

shared by Nathan Goodyear on 15 Feb 14 - No Cached

Nathan Goodyear on 15 Feb 14

Tribulus found to increase sex hormone production in opiate addicted male rats. Opiates are known causes of low T in men.

<div class="cArrow"> </div><div class="cContentInner">Tribulus found to increase sex hormone production in opiate addicted male rats. Opiates are known causes of low T in men.</div>

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Effects of androgen supplementation of hormone... [Fertil Steril. 2001] - PubMed - NCBI - 0 views

www.ncbi.nlm.nih.gov/...11476766

Testosterone women female hormones hormone CVD cardiovascular disease health lipids

shared by Nathan Goodyear on 20 Mar 14 - No Cached

Nathan Goodyear on 20 Mar 14

Testosterone therapy in post menopausal women appears to have adverse cardiovascular effects in women. The negative effects were an increase in Pulsatility index and adverse change in lipid profiles. This seemed to counter the positive effects by estrogen. Others have proposed that combination E2 and T therapy hide the negative effects of testosterone on CV health in women.

<div class="cArrow"> </div><div class="cContentInner">Testosterone therapy in post menopausal women appears to have adverse cardiovascular effects in women. The negative effects were an increase in Pulsatility index and adverse change in lipid profiles. This seemed to counter the positive effects by estrogen. Others have proposed that combination E2 and T therapy hide the negative effects of testosterone on CV health in women.</div>

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The question of declining sperm density revisited: an analysis of 101 studies published... - 0 views

www.ncbi.nlm.nih.gov/...PMC1240129

sperm count men male fertility

shared by Nathan Goodyear on 27 Jul 13 - No Cached

Nathan Goodyear on 27 Jul 13

Re-analysis of Carlsen's work on sperm count finds consistent decline in sperm count. Swan and authors found a 1.5% decline in US men from 1934-1996 and 3% annual decline in European/Australian men over same time frame. This was a meta-analysis of 101 studies from 1934-1996. Yes, there is geographical variation, but the overall trend is one of decline.

<div class="cArrow"> </div><div class="cContentInner">Re-analysis of Carlsen's work on sperm count finds consistent decline in sperm count. Swan and authors found a 1.5% decline in US men from 1934-1996 and 3% annual decline in European/Australian men over same time frame. This was a meta-analysis of 101 studies from 1934-1996. Yes, there is geographical variation, but the overall trend is one of decline.</div>

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Environmental/lifestyle effects on spermatogenesis - 0 views

rstb.royalsocietypublishing.org/...1697.full

sperm count xenoestrogens EDC endocrine disrupting chemicals endocrine disruptor low T Testosterone men male fertility

shared by Nathan Goodyear on 27 Jul 13 - No Cached

Nathan Goodyear on 27 Jul 13

The environment is playing a role in reduced testicular function in men.

<div class="cArrow"> </div><div class="cContentInner">The environment is playing a role in reduced testicular function in men.</div>

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Journal of Endocrinological Investigation - 0 views

www.jendocrinolinvest.it/...abstract.cfm

sperm cell phones men male fertility

shared by Nathan Goodyear on 16 Apr 14 - No Cached

Nathan Goodyear on 16 Apr 14

Study found that men who carry cell phones in their pants for > 4 hours have increased sperm fragmentation.

<div class="cArrow"> </div><div class="cContentInner">Study found that men who carry cell phones in their pants for > 4 hours have increased sperm fragmentation. </div>

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High-dose vitamin D supplementation and measur... [Fertil Steril. 2014] - PubMed - NCBI - 0 views

www.ncbi.nlm.nih.gov/...24636395

insulin sensitivity resistance vitamin D vitamin D PCOS

shared by Nathan Goodyear on 14 Apr 14 - No Cached

Nathan Goodyear on 14 Apr 14

No significant statistical significance was found with vitamin D therapy and insulin sensitivity. However, improved outcomes were found in 2 hour insulin and 2 hour glucose levels after a 75 gram OGTT.

<div class="cArrow"> </div><div class="cContentInner">No significant statistical significance was found with vitamin D therapy and insulin sensitivity. However, improved outcomes were found in 2 hour insulin and 2 hour glucose levels after a 75 gram OGTT.</div>

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Subclinical hypothyroidism in young women with... [Fertil Steril. 2013] - PubMed - NCBI - 0 views

www.ncbi.nlm.nih.gov/...23103018

PCOS polycystic ovarian syndrome hypothyroid hypothroidism functional hypothyroidism women female hormone hormones

shared by Nathan Goodyear on 14 May 14 - No Cached

Nathan Goodyear on 14 May 14

Link exists between PCOS and subclinical hypothyroidism. Another term is functional hypothyroidism.

<div class="cArrow"> </div><div class="cContentInner">Link exists between PCOS and subclinical hypothyroidism. Another term is functional hypothyroidism.</div>

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Validation of Blood Spot Sampling for Gonadotropins and Ovarian Hormone Levels in Repro... - 0 views

www.fertstert.org/...fulltext

blood spot hormone testing hormones Estradiol Progesterone LH FSH

shared by Nathan Goodyear on 22 Jun 15 - No Cached

Nathan Goodyear on 22 Jun 15

blood spot Estradiol, Progesterone, LH, and FSH levels shown to be comparable to plasma levels.

<div class="cArrow"> </div><div class="cContentInner">blood spot Estradiol, Progesterone, LH, and FSH levels shown to be comparable to plasma levels.</div>

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Relationship between salivary progesterone, 17-hyd... [Fertil Steril. 2001] - PubMed re... - 0 views

www.ncbi.nlm.nih.gov/...11532491

saliva testing salivar progesterone hormone hormones

shared by Nathan Goodyear on 03 Nov 10 - No Cached

Nathan Goodyear on 03 Nov 10

Relationship between salivary progesterone, 17-hydroxyprogesterone, and cortisol levels throughout the normal menstrual cycle of healthy postmenarcheal girls.

<div class="cArrow"> </div><div class="cContentInner">Relationship between salivary progesterone, 17-hydroxyprogesterone, and cortisol levels throughout the normal menstrual cycle of healthy postmenarcheal girls. </div>

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Estradiol and progesterone regulate the proliferat... [Fertil Steril. 1998] - PubMed re... - 0 views

www.ncbi.nlm.nih.gov/...9591509

estradiol progesterone breast cancer hormones BHRT bioidentical

shared by Nathan Goodyear on 07 Nov 10 - No Cached

Nathan Goodyear on 07 Nov 10

Again, progesterone reduces Estradiol stimulated breast cell growth

<div class="cArrow"> </div><div class="cContentInner">Again, progesterone reduces Estradiol stimulated breast cell growth</div>

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Influences of percutaneous administration of estra... [Fertil Steril. 1995] - PubMed re... - 0 views

www.ncbi.nlm.nih.gov/...7890063

Progesterone Estradiol breast cancer BHRT bioidentical hormones