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Natural hormone therapy

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https://www.readbyqxmd.com/read/28610679/the-presence-of-a-membrane-bound-progesterone-receptor-induces-growth-of-breast-cancer-with-norethisterone-but-not-with-progesterone-a-xenograft-model
#1
Yue Zhao, Xiangyan Ruan, Husheng Wang, Xue Li, Muqing Gu, Lijuan Wang, Yanglu Li, Harald Seeger, Alfred O Mueck
OBJECTIVES: During menopausal hormone therapy (MHT) a possible increase in breast cancer risk is thought to depend mainly on the progestogen component. In vitro studies have shown that the progesterone receptor membrane component 1 (PGRMC1) is important for tumor proliferation induced by progestogens. The primary aim of this study was to compare for the first time the natural progestogen, progesterone (P), with a synthetic progestogen, norethisterone (NET), using a xenograft model. METHODS: MCF7 cells, transfected with PGRMC1 plasmid or empty vector, were injected into nude mice and estradiol (E2) pellets were implanted...
August 2017: Maturitas
https://www.readbyqxmd.com/read/28609391/promotion-and-marketing-of-bioidentical-hormone-therapy-on-the-internet-a-content-analysis-of-websites
#2
Nese Yuksel, Laetitia Treseng, Bushra Malik, Ubaka Ogbogu
OBJECTIVE: To evaluate the quality of information presented and claims made on websites offering bioidentical hormone therapy (BHT) products or services. METHODS: A quantitative content analysis was completed on 100 websites promoting or offering BHT products or services. Websites were identified through Google search engine from September to October 2013. Search terms included "bioidentical hormone therapy" or "bioidentical progesterone," accompanied by "purchase or buy," "service," or "doctors...
June 12, 2017: Menopause: the Journal of the North American Menopause Society
https://www.readbyqxmd.com/read/28598868/pax6-aniridia-syndrome-clinics-genetics-and-therapeutics
#3
Hyun Taek Lim, Dae Hee Kim, Hyuna Kim
PURPOSE OF REVIEW: Aniridia is a rare and panocular disorder affecting most of the ocular structures which may have significant impact on vision. The purpose of this review is to describe the clinical features, genetics, and therapeutic options for this disease and to provide an update of current knowledge and latest research findings. RECENT FINDINGS: Aside from the ocular features, a variety of associated systemic abnormalities, including hormonal, metabolic, gastrointestinal, genitourinary, and neurologic disorders have been reported in children with aniridia...
June 8, 2017: Current Opinion in Ophthalmology
https://www.readbyqxmd.com/read/28591133/combined-red-clover-isoflavones-and-probiotics-potently-reduce-menopausal-vasomotor-symptoms
#4
Max Norman Tandrup Lambert, Anne Cathrine Thorup, Esben Søvsø Szoscka Hansen, Per Bendix Jeppesen
BACKGROUND: Natural estrogen decline leads to vasomotor symptoms (VMS). Hormone therapy alleviates symptoms but increases cancer risk. Effective treatments against VMS with minimal cancer risks are needed. We investigate the effects of a highly bioavailable aglycone rich Red Clover isoflavone treatment to alleviate existing menopausal VMS, assessed for the first time by 24hour ambulatory skin conductance (SC). METHODS AND RESULTS: We conducted a parallel, double blind, randomised control trial of 62 peri-menopausal women aged 40-65, reporting ≥ 5 hot flushes/day and follicle stimulating hormone ≥35 IU/L...
2017: PloS One
https://www.readbyqxmd.com/read/28579829/natural-and-synthetic-progestins-enrich-cancer-stem-cell-like-cells-in-hormone-responsive-human-breast-cancer-cell-populations-in-vitro
#5
Sandy Goyette, Yayun Liang, Benford Mafuvadze, Matthew T Cook, Moiz Munir, Salman M Hyder
Clinical trials and studies have shown that combination estrogen/progestin hormone replacement therapy, but not estrogen therapy alone or placebo, increases breast cancer risk in postmenopausal women. Using animal models, we have previously shown that both natural and synthetic progestins (including medroxyprogesterone acetate [MPA], a synthetic progestin used widely in the clinical setting) accelerate the development of breast tumors in vivo and increase their metastasis to lymph nodes. Based on these observations, we have hypothesized that progestin-induced breast cancer tumor growth and metastasis may be mediated by an enrichment of the cancer stem cell (CSC) pool...
2017: Breast Cancer: Targets and Therapy
https://www.readbyqxmd.com/read/28578783/biology-and-treatment-of-aggressive-fibromatosis-or-desmoid-tumor
#6
REVIEW
Keith M Skubitz
Aggressive fibromatosis, also known as desmoid-type fibromatosis (DTF) or desmoid tumor, is an uncommon locally invasive tumor. Because of its low incidence and variable behavior, DTF is often first seen by physicians who are not familiar with it, and recent advances in understanding this disease have led to changes in treatment approaches. The Wnt (β-catenin) pathway appears to play a key role in DTF pathogenesis, and recent studies of DTF biology suggest a possible model of DTF pathogenesis. Histologically, DTF shows a poorly circumscribed proliferation of myofibroblast-like cells with variable collagen deposition, similar to the proliferative phase of wound healing, and DTF has been associated with trauma and pregnancy...
June 2017: Mayo Clinic Proceedings
https://www.readbyqxmd.com/read/28561959/review-of-efficacy-of-complementary-and-alternative-medicine-treatments-for-menopausal-symptoms
#7
REVIEW
Thea R Moore, Rachel B Franks, Carol Fox
Complementary and alternative medicine (CAM) treatments have been used for thousands of years around the world. There has been increased interest in utilizing CAM for menopausal symptoms since the release of results of the Women's Health Initiative elucidated long-term adverse effects associated with hormone therapy. Women looking for more natural or safer means to treat hot flushes, night sweats, and other menopausal symptoms often turn to CAM such as yoga, phytoestrogens, or black cohosh. Yet there have been few well-conducted studies looking at the efficacy of these treatments...
May 2017: Journal of Midwifery & Women's Health
https://www.readbyqxmd.com/read/28531316/a-comprehensive-method-to-quantify-adaptations-by-male-and-female-mice-with-hot-flashes-induced-by-the-neurokinin-b-receptor-agonist-senktide
#8
Ashley A Krull, Sarah A Larsen, Donald K Clifton, Genevieve Neal-Perry, Robert A Steiner
Vasomotor symptoms (VMS, or hot flashes) plague millions of reproductive age men and women who have natural or iatrogenic loss of sex steroid production. Many affected individuals are left without treatment options because of contraindications to hormone replacement therapy and the lack of equally effective non-hormonal alternatives. Moreover, development of safer, more effective therapies has been stymied by the lack of an animal model that recapitulates the hot flash phenomenon and enables direct testing of hypotheses regarding the pathophysiology underlying hot flashes...
May 22, 2017: Endocrinology
https://www.readbyqxmd.com/read/28529548/docetaxel-in-prostate-cancer-a-familiar-face-as-the-new-standard-in-a-hormone-sensitive-setting
#9
REVIEW
Javier Puente, Enrique Grande, Ana Medina, Pablo Maroto, Nuria Lainez, Jose Angel Arranz
The increasing knowledge of prostate cancer is leading to many questions about its natural history and to reconsider conventional therapeutic strategies. Androgen ablation therapy has been the standard therapy in the advanced setting. Although docetaxel has demonstrated increased survival in patients with metastatic prostate cancer who had progressed to hormone treatments, due to its potential toxicity the role of chemotherapy has been relegated to patients who were symptomatic or who had high tumor burden...
May 2017: Therapeutic Advances in Medical Oncology
https://www.readbyqxmd.com/read/28528692/insulin-like-growth-factor-igf-axis-in-cancerogenesis
#10
REVIEW
Aldona Kasprzak, Wojciech Kwasniewski, Agnieszka Adamek, Anna Gozdzicka-Jozefiak
Determination of the role of insulin-like growth factor (IGF) family components in carcinogenesis of several human tumors is based on numerous epidemiological and pre-clinical studies, experiments in vivo and in vitro and on attempts at application of drugs affecting the IGF axis. Investigative hypotheses in original studies were based on biological functions manifested by the entire family of IGF (ligands, receptors, linking proteins, adaptor molecules). In the context of carcinogenesis the most important functions of IGF family involve intensification of proliferation and inhibition of cell apoptosis and effect on cell transformation through synthesis of several regulatory proteins...
April 2017: Mutation Research
https://www.readbyqxmd.com/read/28527670/vulvar-fibroepithelial-polyps-in-an-adolescent-female
#11
Jonathan Avila, Kathleen Nicol, Steven C Matson
BACKGROUND: Fibroepithelial polyps (FEPs) are benign tumors, of possibly hormone-dependent nature, found in the vulvovaginal region of women of reproductive age. CASE: A 15-year-old adolescent girl, on hormonal contraceptive therapy, who presented with multiple vulvar masses with histopathology consistent with FEP. SUMMARY AND CONCLUSION: The spectrum of the morphology of FEPs may make their diagnosis challenging. We describe a rare presentation of vulvar fibroepithelial polyps in an adolescent girl on hormonal contraceptive therapy...
May 17, 2017: Journal of Pediatric and Adolescent Gynecology
https://www.readbyqxmd.com/read/28509627/impact-of-risk-reducing-salpingo-oophorectomy-in-premenopausal-women
#12
R F M Vermeulen, M van Beurden, C M Korse, G G Kenter
OBJECTIVES: To describe implications of premenopausal risk-reducing salpingo-oophorectomy (RRSO) on quality of life, endocrine symptoms, sexual function, osteoporosis, cardiovascular health, metabolic syndrome, cognitive impairment and safety of hormone replacement therapy. METHODS: We searched the following electronic databases: The Cochrane Library, EMBASE, PsycInfo, and MEDLINE. We selected controlled and uncontrolled trials of premenopausal women undergoing RRSO...
June 2017: Climacteric: the Journal of the International Menopause Society
https://www.readbyqxmd.com/read/28498913/the-management-of-menopause-in-women-with-a-history-of-endometriosis-a-systematic-review
#13
L C Gemmell, K E Webster, S Kirtley, K Vincent, K T Zondervan, C M Becker
BACKGROUND: Endometriosis is typically regarded as a premenopausal disease, resolving after natural or iatrogenic menopause due to declining oestrogen levels. Nonetheless, case reports over the years have highlighted the incidence of recurrent postmenopausal endometriosis. It is now clear that both recurrence and malignant transformation of endometriotic foci can occur in the postmenopausal period. Postmenopausal women are commonly treated with hormone replacement therapy (HRT) to treat climacteric symptoms and prevent bone loss; however, HRT may reactivate endometriosis and stimulate malignant transformation in women with a history of endometriosis...
May 11, 2017: Human Reproduction Update
https://www.readbyqxmd.com/read/28493531/ternary-complex-of-human-ror%C3%AE-ligand-binding-domain-inverse-agonist-and-smrt-peptide-shows-a-unique-mechanism-of-corepressor-recruitment
#14
Masato Noguchi, Akihiro Nomura, Ken Murase, Satoki Doi, Keishi Yamaguchi, Kazuyuki Hirata, Makoto Shiozaki, Shintaro Hirashima, Masayuki Kotoku, Takayuki Yamaguchi, Yoshiaki Katsuda, Ruo Steensma, Xioalin Li, Haiyan Tao, Bruno Tse, Morgan Fenn, Robert Babine, Erin Bradley, Paul Crowe, Scott Thacher, Tsuyoshi Adachi, Masafumi Kamada
Retinoid-related orphan receptor gamma (RORγ) directly controls the differentiation of Th17 cell and the production of interleukin-17, which plays an integral role in autoimmune diseases. To obtain insight into RORγ, we have determined the first crystal structure of a ternary complex containing RORγ ligand-binding domain (LBD) bound with a novel synthetic inhibitor and a repressor peptide, 22-mer peptide from silencing mediator of retinoic acid and thyroid hormone receptor (SMRT). Comparison of a binary complex of nonliganded (apo) RORγ-LBD with a nuclear receptor co-activator (NCoA-1) peptide has shown that our inhibitor displays a unique mechanism different from those caused by natural inhibitor, ursolic acid (UA)...
May 11, 2017: Genes to Cells: Devoted to Molecular & Cellular Mechanisms
https://www.readbyqxmd.com/read/28486478/effect-of-chronic-estradiol-plus-progesterone-treatment-on-experimental-arterial-and-venous-thrombosis-in-mouse
#15
Marie-Cécile Valéra, Emmanuelle Noirrit-Esclassan, Marion Dupuis, Melissa Buscato, Alexia Vinel, Maeva Guillaume, Anne Briaux, Cédric Garcia, Thibaut Benoit, Olivier Lairez, Coralie Fontaine, Bernard Payrastre, Jean-François Arnal
Postmenopausal hormone replacement therapy (HRT) with estrogen plus progestogens is the first line therapy to treat menopausal symptoms. The progestogen is added to estrogen to reduce or eliminate the excess risk of endometrial cancer due to the unopposed effect of estrogen. Whereas progestin clearly opposes the proliferative and deleterious long-term actions of estrogen on the endometrium, the interference of progestin on the other estrogen action remains unclear. We previously reported that chronic subcutaneous 17α-estradiol (E2) in mice decreases platelet responsiveness, prolongs the tail-bleeding time and protects against acute thromboembolism...
2017: PloS One
https://www.readbyqxmd.com/read/28486246/menopause-and-postmenopausal-hormone-therapy-and-risk-of-hearing-loss
#16
Sharon G Curhan, A Heather Eliassen, Roland D Eavey, Molin Wang, Brian M Lin, Gary C Curhan
OBJECTIVE: Menopause may be a risk factor for hearing loss, and postmenopausal hormone therapy (HT) has been proposed to slow hearing decline; however, there are no large prospective studies. We prospectively examined the independent relations between menopause and postmenopausal HT and risk of self-reported hearing loss. METHODS: Prospective cohort study among 80,972 women in the Nurses' Health Study II, baseline age 27 to 44 years, followed from 1991 to 2013. Baseline and updated information was obtained from detailed validated biennial questionnaires...
May 8, 2017: Menopause: the Journal of the North American Menopause Society
https://www.readbyqxmd.com/read/28469929/an-intrasellar-pituitary-adenoma-gangliocytoma-presenting-as-acromegaly
#17
Melissa H Lee, Penelope McKelvie, Balasubramanian Krishnamurthy, Yi Yuen Wang, Carmela Caputo
Most cases of acromegaly are due to growth hormone (GH)-secreting pituitary adenomas arising from somatotroph cells. Mixed pituitary adenoma and gangliocytoma tumours are rare and typically associated with hormonal hypersecretion, most commonly GH excess. Differentiating these mixed tumours from conventional pituitary adenomas can be difficult pre-operatively, and careful histological analysis after surgical resection is key to differentiating the two entities. There is little literature addressing the possible mechanisms for the development of mixed pituitary adenoma-gangliocytomas; however, several hypotheses have been proposed...
2017: Endocrinology, Diabetes & Metabolism Case Reports
https://www.readbyqxmd.com/read/28467767/impact-of-endometrial-preparation-protocols-for-frozen-embryo-transfer-on-live-birth-rates
#18
Maria Cerrillo, Leyre Herrero, Alfredo Guillén, Mercedes Mayoral, Juan Antonio García-Velasco
BACKGROUND: It has been reported that a natural cycle (NC) is similar to or even better than hormone replacement therapy (HRT) in patients with regular cycles who undergo frozen embryo transfer (FET). Hundreds of FETs are managed yearly in our clinic. Scheduling these cycles is critical in a busy unit like ours. This is why we have to prove if a NC really shows a better outcome than other endometrium preparation protocols. METHODS: Hence we carried out a prospective study between June 2011 and June 2012, which included 530 patients (570 FET cycles) randomly allocated to two study groups: Group 1 (n=280 cycles), artificial cycle (HRT); or group 2 (n=290 cycles), natural cycle...
April 28, 2017: Rambam Maimonides Medical Journal
https://www.readbyqxmd.com/read/28460884/enhanced-therapeutic-benefit-of-quercetin-loaded-phytosome-nanoparticles-in-ovariectomized-rats
#19
Abeer I Abd El-Fattah, Mohamed M Fathy, Zeinab Y Ali, Abd El-Rahman A El-Garawany, Ehsan K Mohamed
Quercetin, a dietary flavonol phytoestrogen, has many health benefits but it is poorly absorbed when administered orally. To improve its bioavailability, we prepared quercetin-loaded phytosome nanoparticles (QP) using the thin film hydration method. The prepared nano-formulations were characterized using different techniques. Transmission electron microscopy revealed the homogeneously spherical, well and uniformly dispersed, nano-sized nature of QP. Dynamic light scattering measurements of QP (70 ± 7.44 nm) also confirmed this...
June 1, 2017: Chemico-biological Interactions
https://www.readbyqxmd.com/read/28456372/uterine-peristalsis-and-fertility-current-knowledge-and-future-perspectives-a-review-and-meta-analysis
#20
REVIEW
Nienke Petronella Maria Kuijsters, Willem Gerardus Methorst, Madeleine Susanne Quirine Kortenhorst, Chiara Rabotti, Massimo Mischi, Benedictus Christiaan Schoot
Although uterine contractions in the non-pregnant uterus have been studied extensively, the knowledge gained has not been used in general fertility treatment work-up. In this review paper, we provide an overview of the current knowledge on uterine peristalsis (UP), based on the available literature. This literature shows that UP influences pregnancy chances in both natural and artificial cycles. Although the physiological background of these contractions is not completely clear, we know that several factors can be of influence, like uterine pathologies and hormones...
April 12, 2017: Reproductive Biomedicine Online
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