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    <recommendedItem id="20100101_19_430"
                     title="HRT Linked to Asthma Risk (CME/CE)"
                     score="0.013"
                     href="http://www.medpagetoday.com/Endocrinology/Menopause/tb/18342?impressionId=1265798151011"
                     
      &lt;p&gt;Estrogen-only hormone replacement therapy is associated with an increased risk of asthma in postmenopausal women, a large prospective observational cohort study showed.&lt;/p&gt;
&lt;p&gt;Recent and current users of estrogen had a 54% increase in the risk of being diagnosed with asthma, according to Isabelle Romieu, MD, ScD, of the National Institute of Public Health in Cuernavaca, Mexico, and colleagues.&lt;/p&gt;
&lt;p&gt;The risk was even higher in nonsmokers or those who reported an allergic disease before they developed asthma, the researchers reported online in &lt;em&gt;Thorax&lt;/em&gt;.&lt;/p&gt;
&lt;p&gt;Epidemiological studies suggest that an endocrine mechanism  --  perhaps endogenous estrogen synthesis  --  is involved in asthma in women and girls, the researchers wrote.&lt;/p&gt;
&lt;p&gt;It&apos;s plausible that hormone replacement therapy &quot;might therefore play a role in asthma onset,&quot; they theorized in the journal.&lt;/p&gt;
&lt;p&gt;To delve into the question, Romieu and colleagues turned to the E3N cohort study, which is the French component of the continuing European Prospective Investigation into Cancer and Nutrition (EPIC) study.&lt;/p&gt;
&lt;p&gt;The study started in 1990 and includes 98,995 French women born between 1925 and 1950. The participants complete self-administered questionnaires every two years, giving details of their medical history, menopausal status, and a variety of lifestyle characteristics.&lt;/p&gt;
&lt;p&gt;Women were deemed to have a new case of asthma if  --  after being free of the disease at baseline  --  they later reported both that they had suffered asthma attacks and that the diagnosis had been confirmed by a physician.&lt;/p&gt;
&lt;p&gt;Among the participants, Romieu and colleagues found 57,664 women who were free of asthma at menopause. In that group, the researchers found, there were 569 incident cases of asthma during a total of 495,448 years of follow-up.&lt;/p&gt;
&lt;p&gt;Analysis showed that hormone replacement therapy in general was related to an increased risk of asthma onset among recent users, with a hazard ratio of 1.20. But the 95% confidence interval ranged from 0.98 to 1.46, so the finding was not statistically significant.&lt;/p&gt;
&lt;p&gt;Instead, the researchers found, the association only reached significance among women reporting the use of estrogen alone, where the hazard ratio was 1.54, with a 95% confidence interval from 1.13 to 2.09.&lt;/p&gt;
&lt;p&gt;The risk was particularly great in estrogen-using women who had never smoked or who had reported allergic disease before the asthma onset. Those hazard ratios were 1.80 and 1.84, respectively, and both reached significance.&lt;/p&gt;
&lt;p&gt;The increased risk among never smokers might reflect an anti-estrogen effect of tobacco smoke, the researchers speculated, or difficulty isolating the additional effect of the therapy in smokers.&lt;/p&gt;
&lt;p&gt;The strengths of the study include its large size, prospective design, and relatively low loss to follow-up of 3.8%, Romieu and colleagues said.&lt;/p&gt;
&lt;p&gt;They added that the results might be biased if users of hormone replacement therapy reported more asthma attacks or were diagnosed more often because of more frequent visits to the doctor.&lt;/p&gt;
&lt;p&gt;Indeed, hormone therapy users had more mammograms than nonusers, they noted, but added that the participants all had free medical care and &quot;there is no reason to believe&quot; that hormone users had more medical visits for non-gynecological reasons than nonusers.&lt;/p&gt;
&lt;p&gt;Hormone therapy has been controversial  --  and on the decline  --  since the landmark Women&apos;s Health Initiative study was stopped in 2002 when the researchers found that participants taking estrogen plus progestin had a greater incidence of coronary heart disease, breast cancer, stroke, and pulmonary embolism than those receiving placebo.&lt;/p&gt;
&lt;p&gt;In the current study, the combination hormone therapy was not associated with an increase in asthma incidence.&lt;/p&gt;
&lt;div style=&quot;float:left;border-style:solid;border-width:1px;border-color:#8dabbc;font-family:arial;font-size:12px;background-color:#DBE9F2;padding:5px;&quot;&gt;&lt;p&gt;The study and researchers had support from Mutuelle G&amp;#233;n&amp;#233;rale de l&apos;Education Nationale, the Institut de Canc&amp;#233;rologie Gustave Roussy, the Institut National de la Sant&amp;#233; et de la Recherche M&amp;#233;dicale, the CDC, the Canc&amp;#233;rop&amp;#244;le R&amp;#233;gion Ile de France, and the GA&lt;sup&gt;2&lt;/sup&gt;LEN project.&lt;/p&gt;&lt;p&gt;The authors did not report any potential conflicts.&lt;/p&gt;&lt;/div&gt;&lt;div style=&quot;clear:both;&quot;&gt;&lt;/div&gt;
    </recommendedItem>
    <recommendedItem id="20100101_19_288"
                     title="SSRIs Affect Breast Milk Production (CME/CE)"
                     score="0.002"
                     href="http://www.medpagetoday.com/Endocrinology/GeneralEndocrinology/tb/18149?impressionId=1265798151011"
                     
      &lt;p&gt;Women taking selective serotonin reuptake inhibitor (SSRI) antidepressants may experience delays in postpartum breast milk production, researchers said.&lt;/p&gt;
&lt;p&gt;Delayed secretory activation occurred in 87.5% of a small group of women taking SSRIs, compared with 43.5% of those not taking the drugs (RR 2, 95% CI 1.51 to 2.67, &lt;em&gt;P&lt;/em&gt;=0.02), according to Aaron M. Marshall, PhD, of the University of Cincinnati.&lt;/p&gt;
&lt;p&gt;The relative risk of delayed activation remained significantly higher (&lt;em&gt;P&lt;/em&gt;&amp;lt;0.05) among SSRI users after adjustment for maternal age, obesity, cesarean delivery, infant gestational age, and infant breastfeeding behavior, the researchers reported online in the &lt;em&gt;Journal of Clinical Endocrinology and Metabolism&lt;/em&gt;.&lt;/p&gt;
&lt;p&gt;An early breastfeeding difficulty faced by many women, particularly those who are primiparous, is milk secretion delayed beyond 72 hours postpartum.&lt;/p&gt;
&lt;p&gt;These women also are at risk of early cessation of breastfeeding. In fact, only 11% of mothers in the U.S. breastfeed exclusively for the recommended six months.&lt;/p&gt;
&lt;p&gt;Studies in animal models and cell cultures suggested that serotonin (5-HT) is an important local regulator of lactation homeostasis, and the 5-HT transporter is expressed in mammary tissue at the apical membrane of epithelial cells.&lt;/p&gt;
&lt;p&gt;Serotonin is controlled intracellularly by a balance between synthesis and degradation, while extracellularly its availability is controlled through recycling by the 5-HT transporter.&lt;/p&gt;
&lt;p&gt;The 5-HT transporter also is the target for the most commonly prescribed class of antidepressants in the U.S. and other developed countries. These SSRI antidepressants are typically used to treat postpartum depression.&lt;/p&gt;
&lt;p&gt;The investigators conducted in vitro and animal studies to establish that the 5-HT transporter is expressed in breast tissue, particularly in the apical membranes of mammary epithelial cells, and that pharmacologic inhibition of the transporter disrupts tight junctures leading to a local involution-like effect.&lt;/p&gt;
&lt;p&gt;To examine the potential effect of SSRI inhibition on milk production in women, Marshall and colleagues enrolled 431 mothers as part of a longitudinal cohort study examining barriers to early lactation success.&lt;/p&gt;
&lt;p&gt;All were expecting their first live-born infants, had no known absolute contraindication to breastfeeding, and were at least 19 years old.&lt;/p&gt;
&lt;p&gt;Women taking SSRIs were more likely to have scored higher on a depressive symptom scale (as expected), and were somewhat more likely to be obese or to have had a cesarean delivery.&lt;/p&gt;
&lt;p&gt;Participating mothers were visited between 72 and 96 hours after giving birth to assess their breastfeeding experience and to determine the timing of secretory activation, and then seen again one week later.&lt;/p&gt;
&lt;p&gt;Delayed secretory activation was defined as initiation more than 72 hours postpartum.&lt;/p&gt;
&lt;p&gt;Median onset of secretory activation among the SSRI-treated mothers was 85.8 hours compared with 69.1 hours in mothers not using the drugs (&lt;em&gt;P&lt;/em&gt;=0.004).&lt;/p&gt;
&lt;p&gt;Eight women reported regular use of an SSRI medication. Seven experienced definite delayed secretory activation, and the eighth reported activation at 72 hours and therefore did not meet the defined cutoff for delayed activation.&lt;/p&gt;
&lt;p&gt;All women taking SSRIs had experienced secretory activation by their second visit a week after the first interview.&lt;/p&gt;
&lt;p&gt;The researchers noted that most studies on the effects of SSRI use during pregnancy and lactation have focused on the risks for developmental defects or whether the drugs passed into milk during lactation.&lt;/p&gt;
&lt;p&gt;This study, they said, is the first to report data on another important aspect of SSRI use during the peripartum, the effect on milk production.&lt;/p&gt;
&lt;p&gt;They concluded that the risk of delayed secretory activation was twice as great among primiparous women using an SSRI medication, and although the fraction of women taking the drugs was small, the risk was significant and remained so after adjustment for potential confounding factors.&lt;/p&gt;
&lt;p&gt;Further examination of this relationship is needed in larger groups of mothers, the researchers said, and in studies to determine if there are differences among the antidepressant medications.&lt;/p&gt;
&lt;div style=&quot;float:left;border-style:solid;border-width:1px;border-color:#8dabbc;font-family:arial;font-size:12px;background-color:#DBE9F2;padding:5px;&quot;&gt;&lt;p&gt;This work was supported by the National Institutes of Health, the USDA Cooperative State Research, Education, and Extension Service, and the Department of Health and Human Services.&lt;/p&gt;&lt;/div&gt;&lt;div style=&quot;clear:both;&quot;&gt;&lt;/div&gt;
    </recommendedItem>
    <recommendedItem id="20090101_10_94"
                     title="Individual Risk of Breast Cancer Rises Only Slightly With Estrogen"
                     score="-0.005"
                     href="