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https://www.readbyqxmd.com/read/29656181/elevated-systemic-microbial-translocation-in-pregnant-hiv-infected-women-compared-to-hiv-uninfected-women-and-its-inverse-correlations-with-plasma-progesterone-levels
#1
Zejun Zhou, Anna Maya Powell, Vishwanathan Ramakrishnan, Allison Eckard, Carol Wagner, Wei Jiang
In HIV infection, increased adverse perinatal outcomes reported among HIV-associated pregnancies are not fully understood. Currently, microbial product translocation (MT) from a permeable mucosa is demonstrated as a driver of inflammation, and may contribute to preterm delivery in HIV. Here, our results showed that plasma LPS levels (a representative marker of MT) were increased in HIV-infected women in the first and second trimester. Progesterone levels were significantly decreased in HIV-infected subjects in the first trimester and second trimester...
April 10, 2018: Journal of Reproductive Immunology
https://www.readbyqxmd.com/read/29656043/pituitary-estrogen-receptor-alpha-is-involved-in-luteinizing-hormone-pulsatility-at-mid-gestation-in-the-south-american-plains-vizcacha-lagostomus-maximus-rodentia-caviomorpha
#2
Sofía Proietto, Lorena Yankelevich, Federico Martín Villarreal, Pablo Ignacio Felipe Inserra, Santiago Elías Charif, Alejandro Raúl Schmidt, Santiago Andrés Cortasa, María Clara Corso, Noelia Paula Di Giorgio, Victoria Lux-Lantos, Alfredo Daniel Vitullo, Julia Halperin, Verónica Berta Dorfman
The South American plains vizcacha, Lagostomus maximus, is a caviomorph rodent native from Argentina, Bolivia and Paraguay. It shows peculiar reproductive features like pre-ovulatory follicle recruitment during pregnancy with an ovulatory process at around mid-gestation. We have described the activation of the hypothalamic - pituitary - ovarian (HPO) axis during pregnancy. A progressive decrease of progesterone (P4) at mid-pregnancy elicits the delivery of gonadotropin-releasing hormone (GnRH) with the consequent secretion of follicle stimulating hormone (FSH) and estradiol (E2 ) followed by luteinizing hormone (LH) release resulting in follicular luteinization and the P4 concentration recover...
April 12, 2018: General and Comparative Endocrinology
https://www.readbyqxmd.com/read/29655530/lifetime-endogenous-estrogen-exposure-and-disease-severity-in-female-patients-with-facioscapulohumeral-muscular-dystrophy
#3
Karlien Mul, Corinne G C Horlings, Nicol C Voermans, Tim H A Schreuder, Baziel G M van Engelen
Facioscapulohumeral muscular dystrophy (FSHD) is characterized by large variability in disease severity, that is only partly explained by (epi)genetic factors. Clinical observations and recent in vitro work suggest a protective effect of estrogens in FSHD. The aims of this study were to assess whether the lifetime endogenous estrogen exposure contributes to the variability in disease severity in female patients, and whether female patients experience changes in disease progression during periods of hormonal changes...
March 8, 2018: Neuromuscular Disorders: NMD
https://www.readbyqxmd.com/read/29653388/synchronization-treatments-previous-to-natural-breeding-anticipate-and-improve-the-pregnancy-rate-of-postpartum-primiparous-beef-cows
#4
R M Ferreira, T L Conti, R L Gonçalves, L A Souto, J N S Sales, M F Sá Filho, F M Elliff, P S Baruselli
Timed AI has become a potential tool to bypass postpartum acyclicity, yet only a small percentage of the world bovine herd is inseminated. Most females are still subjected to bull mating; therefore, the frequent occurrence of postpartum anestrus may compromise their reproductive efficiency. Thus, the aim of this study was to develop an approach that allows the early conception of postpartum primiparous beef cows that are exposed to natural breeding (NB). For this purpose, 350 primiparous Nelore cows 35-65 d postpartum were allocated into three groups: Control (no hormonal treatment), TNB (hormonal protocol for timed-NB without equine chorionic gonadotropin; eCG) and TNB + eCG (hormonal protocol for TNB with eCG) groups...
April 4, 2018: Theriogenology
https://www.readbyqxmd.com/read/29651273/are-there-differences-in-androgen-receptor-expression-in-invasive-breast-cancer-in-african-tanzanian-population-in-comparison-with-the-caucasian-italian-population
#5
Sara Bravaccini, Sara Ravaioli, Dino Amadori, Emanuela Scarpi, Maurizio Puccetti, Andrea Rocca, Maria Maddalena Tumedei, Nestory Masalu, Jackson Kahima, Akwilina Pangan, Lucas Faustine, Alberto Farolfi, Roberta Maltoni, Massimiliano Bonafè, Patrizia Serra, Giuseppe Bronte
Purpose: Androgen receptor (AR) has been shown to have prognostic implication on breast cancer (BC). Data on the biological features of African BCs are poor. We decided for the first time to compare AR expression of Tanzanian and Italian BC patients. Patients and methods: Of the 69 consecutive patients seen at the Bugando Medical Center (Mwanza, Tanzania) from 2003 to 2010, who underwent resection of primary BC evaluable for estrogen receptor, progesterone receptor (PgR), and HER2 only 65 were evaluable for AR by immunohistochemistry...
2018: Frontiers in Endocrinology
https://www.readbyqxmd.com/read/29650835/-diagnosis-of-a-non-invasive-ductal-carcinoma-assisted-by-long-term-follow-up-of-spontaneous-nipple-discharge-a-case-report
#6
Tomohiro Hirano, Shuhei Suzuki, Keita Adachi, Hitomi Kubota, Yukiko Hara, Katsuhisa Enomoto, Ryouichi Tomita, Shigeru Fujisaki, Kenichi Sakurai
We report a case of a non-invasive ductal carcinoma revealed on long-term follow-up of spontaneous nipple discharge. The patient, a 36-year-old woman, had noticed spontaneous nipple discharge from both breasts over a 3-year period. Mammography and ultrasonography did not reveal any lesions in the breasts. The nipple discharge from her left breast stopped 36 months after initial clinical assessment. However, the nipple discharges from her right breast transformed into a bloody discharge from a single duct. Ultrasonography showed a tumor, 6mm in diameter, in the upper-outer quadrant of her right breast...
April 2018: Gan to Kagaku Ryoho. Cancer & Chemotherapy
https://www.readbyqxmd.com/read/29650834/-asynchronous-bilateral-neuroendocrine-breast-carcinoma-a-case-report
#7
Kaori Abe, Satoshi Mori, Yumi Koyama, Mayuko Takagi, Keita Adachi, Yukiko Hara, Eiko Waga, Katsuhisa Enomoto, Ryouichi Tomita, Shigeru Fujisaki, Tomohiro Hirano, Kenichi Sakurai
We report a case of asynchronous bilateral neuroendocrine breast carcinoma. The patient was a 49-year-old woman presenting with a bloody nipple discharge from the right breast. We suspected intraductal papilloma and performed a microdochectomy. A pathological analysis of the resected specimen confirmed the diagnosis as neuroendocrine carcinoma. The tumor was positive for estrogen receptor, progesterone receptor, chromogranin A, and synaptophysin, but negative for the HER2/neu marker. The Ki-67 labeling-index was 40%...
April 2018: Gan to Kagaku Ryoho. Cancer & Chemotherapy
https://www.readbyqxmd.com/read/29650825/-successful-breast-conserving-surgery-for-simultaneous-and-ipsilateral-multiple-breast-carcinomas-of-young-patient-a-case-report
#8
Hitomi Kubota, Keita Adachi, Shuhei Suzuki, Shigeru Fujisaki, Yukiko Hara, Katsuhisa Enomoto, Ryouichi Tomita, Tomohiro Hirano, Kenichi Sakurai
We report a case of a simultaneous and ipsilateral multiple breast carcinoma.The patient was 35-year-old woman.She was noticed a breast lump on her right breast, and visited our hospital.Mammography showed a tumor accompanied by spiculation on her right breast.Ultrasonography revealed 2 tumors with irregular margins, 23mm in diameter and 12mm in diameter, and were observed on C area of her right breast.The continuity of the 2 tumors was not clear.Core needle biopsies for each breast tumors led to a diagnosis...
April 2018: Gan to Kagaku Ryoho. Cancer & Chemotherapy
https://www.readbyqxmd.com/read/29649764/sleep-after-intranasal-progesterone-vs-zolpidem-and-placebo-in-postmenopausal-women-a-randomized-double-blind-cross-over-study
#9
P Schüssler, M Kluge, M Adamczyk, M E Beitinger, P Beitinger, A Bleifuss, S Cordeiro, C Mattern, M Uhr, T C Wetter, A Yassouridis, R Rupprecht, E Friess, A Steiger
CONTEXT: The loss of progesterone during menopause is linked to sleep complaints of the affected women. Previously we demonstrated sleep promoting effects of oral progesterone replacement in postmenopausal women. The oral administration of progesterone, however, is compromised by individual differences in bioavailability and metabolism of the steroid. OBJECTIVE: We compared the sleep-endocrine effects after intranasal progesterone (MPP22), zolpidem and placebo in healthy postmenopausal women...
April 4, 2018: Psychoneuroendocrinology
https://www.readbyqxmd.com/read/29649433/repurposing-sex-steroids-and-related-drugs-as-potential-treatment-for-parkinson-s-disease
#10
REVIEW
Mélanie Bourque, Marc Morissette, Thérèse Di Paolo
Parkinson's disease (PD) is a neurodegenerative disorder for which a greater prevalence and incidence is described in men. This suggests a protective effect of sex hormones in the brain. Therefore, steroids and drugs to treat endocrine conditions could have additional application for PD. Here, we review the protective effect of sex hormones, particularly estrogens, progesterone, androgens and dehydroepiandrosterone, in animal models of PD and also in human studies. Data also support that drugs affecting estrogen neurotransmission such as selective estrogen receptor modulators or affecting steroid metabolism with 5α-reductase inhibitors could be repositioned for treatment of PD...
April 9, 2018: Neuropharmacology
https://www.readbyqxmd.com/read/29649418/roles-of-progesterone-receptor-membrane-component-1-and-membrane-progestin-receptor-alpha-in-regulation-of-zebrafish-oocyte-maturation
#11
Joseph Aizen, Yefei Pang, Caleb Harris, Aubrey Converse, Yong Zhu, Meagan A Aguirre, Peter Thomas
Although previous studies suggest membrane progesterone receptor alpha (mPRα/Paqr7) mediates 17, 20β-dihydroxy-4-pregnen-3-one (DHP) induction of oocyte maturation (OM) in zebrafish, critical information needed to establish mPRα as the receptor mediating OM, is lacking. The relative potencies of progestins and specific mPRα agonists in inducing OM matched their relative binding affinities for zebrafish mPRα, supporting its role in OM. Microinjection of pertussis toxin blocked DHP induction of OM and the progestin-induced decrease in cyclic AMP levels, suggesting mPRα activates an inhibitory G protein (Gi)...
April 9, 2018: General and Comparative Endocrinology
https://www.readbyqxmd.com/read/29648645/does-human-endometrial-lgr5-gene-expression-suggest-the-existence-of-another-hormonally-regulated-epithelial-stem-cell-niche
#12
N Tempest, A M Baker, N A Wright, D K Hapangama
STUDY QUESTION: Is human endometrial leucine-rich repeat-containing G-protein-coupled receptor 5 (LGR5) gene expression limited to the postulated epithelial stem cell niche, stratum basalis glands, and is it hormonally regulated? SUMMARY ANSWER: LGR5 expressing cells are not limited to the postulated stem cell niche but LGR5 expression is hormonally regulated. WHAT IS KNOWN ALREADY: The human endometrium is a highly regenerative tissue; however, endometrial epithelial stem cell markers are yet to be confirmed...
April 10, 2018: Human Reproduction
https://www.readbyqxmd.com/read/29648595/progesterone-as-a-postnatal-prophylactic-agent-for-encephalopathy-caused-by-prenatal-hypoxic-ischemic-insult
#13
Yoshimasa Kawarai, Hirokazu Tanaka, Tatsuya Kobayashi, Makio Shozu
Brain damage caused by hypoxic ischemic insult during the perinatal period causes hypoxic ischemic encephalopathies (HIEs). Therapeutic hypothermia is indicated for HIE, but since the therapeutic burden is large for its limited therapeutic effectiveness, another strategy is needed. Progesterone (P4) plays a neuroprotective role through the actions of its metabolite, allopregnanolone (Allo), on P4 receptor, GABA (γ-aminobutyric acid)A receptors or both. We examined the therapeutic potential of P4 using a newborn rat model of HIE...
April 10, 2018: Endocrinology
https://www.readbyqxmd.com/read/29645079/antinuclear-antibodies-in-patients-with-breast-cancer
#14
Renato Nisihara, Mariana C C Machoski, Aline Neppel, Carlos A Maestri, Iara Messias-Reason, Thelma L Skare
PURPOSE: To study the prevalence of ANA in breast cancer patients and its association with tumor characteristics. METHODS: Ninety one patients with breast mass detected by image studies and assigned to do diagnostic biopsy and eventual surgical treatment were studied for demographical, tumor data and presence of ANA. Serum of positive ANA patients was screened for ENA (extractable nuclear antigens) profile. As comparison, 91 healthy individuals matched for age and from same geographical area were included...
April 12, 2018: Clinical and Experimental Immunology
https://www.readbyqxmd.com/read/29644001/bag3-promotes-tumour-cell-proliferation-by-regulating-egfr-signal-transduction-pathways-in-triple-negative-breast-cancer
#15
Sarah Shields, Emer Conroy, Tony O'Grady, Alo McGoldrick, Kate Connor, Mark P Ward, Zivile Useckaite, Eugene Dempsey, Rebecca Reilly, Yue Fan, Anthony Chubb, David Gomez Matallanas, Elaine W Kay, Darran O'Connor, Amanda McCann, William M Gallagher, Judith A Coppinger
Triple-negative breast cancer (TNBC), is a heterogeneous disease characterised by absence of expression of the estrogen receptor (ER), progesterone receptor (PR) and lack of amplification of human epidermal growth factor receptor 2 (HER2). TNBC patients can exhibit poor prognosis and high recurrence stages despite early response to chemotherapy treatment. In this study, we identified a pro-survival signalling protein BCL2- associated athanogene 3 (BAG3) to be highly expressed in a subset of TNBC cell lines and tumour tissues...
March 20, 2018: Oncotarget
https://www.readbyqxmd.com/read/29643836/tau-phosphorylation-in-female-neurodegeneration-role-of-estrogens-progesterone-and-prolactin
#16
REVIEW
Daniel Muñoz-Mayorga, Christian Guerra-Araiza, Luz Torner, Teresa Morales
Sex differences are important to consider when studying different psychiatric, neurodevelopmental, and neurodegenerative disorders, including Alzheimer's disease (AD). These disorders can be affected by dimorphic changes in the central nervous system and be influenced by sex-specific hormones and neuroactive steroids. In fact, AD is more prevalent in women than in men. One of the main characteristics of AD is the formation of neurofibrillary tangles, composed of the phosphoprotein Tau, and neuronal loss in specific brain regions...
2018: Frontiers in Endocrinology
https://www.readbyqxmd.com/read/29642667/mitochondrial-tumor-suppressor-1-mtus1-is-a-target-of-arid1a-and-progesterone-receptor-in-the-murine-uterus
#17
Hye Jin Chang, Hanna E Teasley, Jung-Yoon Yoo, Tae Hoon Kim, Jae Wook Jeong
Objective: Progesterone receptor (PGR) and ARID1A have important roles in the establishment and maintenance of pregnancy in the uterus. In present studies, we examined the expression of mitochondrial tumor suppressor 1 (MTUS1) in the murine uterus during early pregnancy as well as in response to ovarian steroid hormone treatment. Methods: We performed real-time qPCR and immunohistochemistry analysis to investigate the regulation of PIK3IP1 by ARID1A and determine expression patterns of MTUS1 in the uterus during early pregnancy...
April 12, 2018: Asian-Australasian Journal of Animal Sciences
https://www.readbyqxmd.com/read/29642629/17%C3%AE-hydroxysteroid-dehydrogenase-type-2-expression-is-induced-by-androgen-signaling-in-endometrial-cancer
#18
Chiaki Hashimoto, Yasuhiro Miki, Sota Tanaka, Kiyoshi Takagi, Misaki Fue, Zhulanqiqige Doe, Bin Li, Nobuo Yaegashi, Takashi Suzuki, Kiyoshi Ito
Endometrial cancer is one of the most common female pelvic cancers and has been considered an androgen-related malignancy. Several studies have demonstrated the anti-cell proliferative effect of androgen on endometrial cancer cells; however, the mechanisms of the anti-cancer effect of androgen remain largely unclear. 17β-hydroxysteroid dehydrogenase type 2 (17β-HSD2), which catalyzes the conversion of E2 to E1, is known to be upregulated by androgen treatment in breast cancer cells. In this study, we therefore focused on the role of androgen on estrogen dependence in endometrial cancer...
April 10, 2018: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29629944/human-endometriosis-tissue-microarray-reveals-site-specific-expression-of-estrogen-receptors-progesterone-receptor-and-ki67
#19
Mariano Colón-Caraballo, Miosotis García, Adalberto Mendoza, Idhaliz Flores
Most available therapies for endometriosis are hormone-based and generally broadly used without taking into consideration the ovarian hormone receptor expression status. This contrasts strikingly with the standard of care for other hormone-based conditions such as breast cancer. We therefore aimed to characterize the expression of ovarian steroid hormone receptors for estrogen alpha (ESR1), estrogen beta (ESR2), and progesterone (PGR) in different types of endometriotic lesions and eutopic endometrium from women with endometriosis and controls using a tissue microarray (TMA)...
April 7, 2018: Applied Immunohistochemistry & Molecular Morphology: AIMM
https://www.readbyqxmd.com/read/29629604/the-assessment-of-her2-gene-status-by-fluorescence-in-situ-hybridization-in-invasive-breast-carcinomas-with-equivocal-her2-immunostaining-experience-from-a-single-institution
#20
Boubacar Efared, Ibrahim S Sidibé, Sana Gamrani, Ihsane El Otmani, Fatimazahra Erregad, Nawal Hammas, Sanae Bennis, Laila Chbani, Hinde El Fatemi
BACKGROUND: A subset of breast carcinomas harbors overexpression of the human epidermal growth factor receptor 2 (HER2). Fluorescence in situ hybridization (FISH) should be performed in breast carcinomas with equivocal HER2 immunostaining (immunohistochemistry [IHC] HER2 2+). The aim of our study is to investigate clinicopathologic factors associated with HER2 status in breast invasive carcinomas with IHC HER2 2+ through FISH analysis. METHODS: This is a retrospective study including the FISH analysis of 111 patients with invasive breast carcinomas with equivocal HER2 immunostaining...
April 1, 2018: International Journal of Surgical Pathology
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