Resistance of Synthetic and Biologic Surgical Meshes to Methicillin-Resistant Staphylococcus aureus Biofilm: An In Vitro Investigation.

EVALUATION OF EPIANDROSTERONE AS A LONG-TERM MARKER OF TESTOSTERONE USE

Identification and evaluation of long-term markers is crucial in prolonging the detection window for anabolic steroid abuse in sport. Recently, sulfoconjugated epiandrosterone was identified as a potential long-term marker for the abuse of certain endogenous anabolic agents, including testosterone, which continues to be widely used as a performance enhancing agent in sport. To evaluate the …

EVALUATION OF EPIANDROSTERONE AS A LONG-TERM MARKER OF TESTOSTERONE USE Read More »

Transport of estradiol-17β-glucuronide, estrone3-sulfate and taurocholate across the endoplasmic reticulum membrane: evidence for different transport systems.

Important reactions of drug metabolism, including UGT mediated glucuronidation and steroidsulfatase mediated hydrolysis of sulfates, take place in the endoplasmic reticulum (ER) of hepatocytes. Consequently, UGT generated glucuronides, like estradiol-17β-glucuronide, have to be translocated back into the cytoplasm to reach their site of excretion. Also steroidsulfatase substrates, including estrone-3-sulfate, have to cross the ER membrane …

Transport of estradiol-17β-glucuronide, estrone3-sulfate and taurocholate across the endoplasmic reticulum membrane: evidence for different transport systems. Read More »

The Role of Estriol and Estrone in Keratoconic Stromal Sex Hormone Receptors

Keratoconus (KC) is a progressive corneal thinning disease that manifests in puberty and worsens during pregnancy. KC onset and progression are attributed to diverse factors that include: environmental, genetics, and hormonal imbalances; however, the pathobiology remains elusive. This study aims to determine the role of corneal stroma sex hormone receptors in KC and their interplay …

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The ring size of monocyclic ET1 controls selectivity and signaling efficiency at both endothelin receptor subtypes

Cardiovascular diseases (CVDs) like hypertension are a major cause for death worldwide. In the cardiovascular tissue, the endothelin system-consisting of the receptor subtypes A (ETA R) and B (ETB R) and the mixed agonist endothelin 1 (ET-1)-is a major key player in the regulation of vascular tone and blood pressure. Tight control of this system is required …

The ring size of monocyclic ET1 controls selectivity and signaling efficiency at both endothelin receptor subtypes Read More »

Osteogenic differentiation of human induced pluripotent stem cell in the presence of testosterone and 17 β-estradiol in vitro

Recently, numerous scientific approaches have been explored to treat various diseases using stem cells. In 2006, induced pluripotent stem cell (iPSC) were introduced by Takahashi and Yamanaka and showed the potential of self-renewing and differentiation into all types of targeted cells in vitro. In this investigation, we studied the effect of testosterone (T) individually or …

Osteogenic differentiation of human induced pluripotent stem cell in the presence of testosterone and 17 β-estradiol in vitro Read More »

Downregulation of endothelial nitric oxide synthase (eNOS) and endothelin1 (ET1) in a co-culture system with human stimulated X-linked CGD neutrophils.

Phagocytes in patients with chronic granulomatous disease (CGD) do not generate reactive oxidative species (ROS), whereas nitric oxide (NO) production is increased in response to the calcium ionophore A23187 in CGD phagocytes compared with healthy phagocytes. Recently, patients with X-linked CGD (X-CGD) have been reported to show higher flow-mediated dilation, suggesting that endothelial cell function …

Downregulation of endothelial nitric oxide synthase (eNOS) and endothelin1 (ET1) in a co-culture system with human stimulated X-linked CGD neutrophils. Read More »

The DNA damage repair landscape in Black women with breast cancer

Background: Estrogen receptor positive (ER+) breast cancer is one of the most commonly diagnosed malignancies in women irrespective of their race or ethnicity. While Black women with ER+ breast cancer are 42% more likely to die of their disease than White women, molecular mechanisms underlying this disparate outcome are understudied. Recent studies identify DNA damage …

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Urinary pregnandiol-3glucuronide and estrone conjugates to creatinine ratios in early pregnancies complicated by vaginal bleeding.

There is no simple and rapid test available to predict the outcome of an early pregnancy complicated by vaginal bleeding. In this prospective study, 15 women with normal pregnancies collected a weekly urine sample between 6 and 13 weeks’ gestation. A single random urine sample was obtained from 15 women with bleeding who continued to …

Urinary pregnandiol-3glucuronide and estrone conjugates to creatinine ratios in early pregnancies complicated by vaginal bleeding. Read More »

DHEA-S production capacity in relation to perceived prolonged stress

We and other research groups have previously described that levels of the anabolic hormone dehydroepiandrosterone sulfate (DHEA-S) are lowered in individuals who report prolonged stress. We have also shown that the DHEA-S production capacity during acute stress is attenuated in individuals reporting high prolonged stress. This study aimed to further investigate the DHEA and DHEA-S …

DHEA-S production capacity in relation to perceived prolonged stress Read More »

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