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Endocrine

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https://www.readbyqxmd.com/read/28340478/different-dna-damage-response-of-cis-and-trans-isomers-of-commonly-used-uv-filter-after-the-exposure-on-adult-human-liver-stem-cells-and-human-lymphoblastoid-cells
#1
Anežka Sharma, Katarína Bányiová, Pavel Babica, Naouale El Yamani, Andrew Richard Collins, Pavel Čupr
2-ethylhexyl 4-methoxycinnamate (EHMC), used in many categories of personal care products (PCPs), is one of the most discussed ultraviolet filters because of its endocrine-disrupting effects. EHMC is unstable in sunlight and can be transformed from trans-EHMC to emergent cis-EHMC. Toxicological studies are focusing only on trans-EHMC; thus the toxicological data for cis-EHMC are missing. In this study, the in vitro genotoxic effects of trans- and cis-EHMC on adult human liver stem cells HL1-hT1 and human-derived lymphoblastoid cells TK-6 using a high-throughput comet assay were studied...
March 21, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28340460/interactions-between-three-typical-endocrine-disrupting-chemicals-edcs-in-binary-mixtures-exposure-on-myocardial-differentiation-of-mouse-embryonic-stem-cell
#2
Ren Zhou, Wei Cheng, Yan Feng, Hongying Wei, Fan Liang, Yan Wang
In recent years, various kinds of endocrine-disrupting chemicals (EDCs) have been detected in human blood and urine. Thus, it was important to investigate the combined toxicity effect of EDCs. In the present study, we evaluated the individual and combined developmental toxicities of three classic EDCs: perfluorooctane sulfonate (PFOS), perfluorooctanoic acid (PFOA), and bisphenol A (BPA) by embryonic stem cell test (EST). The similarities and differences between combination of same chemical group as well as different chemical groups were investigated in this research...
March 16, 2017: Chemosphere
https://www.readbyqxmd.com/read/28340048/the-endocrine-diagnostic-management-team-pilot-study
#3
Joseph Wiencek, Jessica Colon-Franco, Sarah Bissonnettee, Andrea Utz, Alison Woodworth
No abstract text is available yet for this article.
March 1, 2017: American Journal of Clinical Pathology
https://www.readbyqxmd.com/read/28339939/developmental-morphology-study-on-the-stomach-of-african-ostrich-chicks
#4
J X Wang, P Li, X T Zhang, L X Ye
This study investigates the developmental morphology changes on the proventriculus and gizzard of African ostrich chicks using gross anatomy, and light and transmission electronic microscopy. The body weight; the weight of the proventriculus and gizzard; the thickness of simple tubular glands, muscularis mucosae, compound tubular glands, and muscular layer of the proventriculus; and the thickness of the gizzard glands and muscularis mucosae were measured on postnatal d one, 45, 90, and 334. Under transmission electronic microscopy, the oxynticopeptic cells, mucous cells, and endocrine cells were observed in the proventriculus on postnatal d one, 45, and 90...
March 2, 2017: Poultry Science
https://www.readbyqxmd.com/read/28339602/gonadotropin-releasing-hormone-kisspeptin-and-gonadal-steroids-directly-modulate-nucleobindin-2-nesfatin-1-in-murine-hypothalamic-gonadotropin-releasing-hormone-neurons-and-gonadotropes%C3%A2
#5
A Hatef, S Unniappan
Neuroendocrine regulation of metabolism and reproduction are tightly interlinked. Nesfatin-1 is an 82 amino acid metabolic peptide derived from nucleobindin-2 (NUCB2). NUCB2 mRNA and protein significantly increase in the hypothalamus of rats during puberty-to-adult transition. Administration of nesfatin-1 modulates circulating LH and testosterone in male rats. However, whether nesfatin-1 acts directly on neurons and gonadotropes remain unknown. In addition, whether reproductive hormones of the hypothalamo-pituitary gonadal axis modulate NUCB2/nesfatin-1 is unclear...
January 28, 2017: Biology of Reproduction
https://www.readbyqxmd.com/read/28338430/trends-of-second-primary-malignancy-in-patients-with-thyroid-cancer-a-population-based-cohort-study-in-israel
#6
Elena Izkhakov, Micha Barchana, Irena Liphshiz, Barbara Silverman, Naftali Stern, Lital Keinan-Boker
BACKGROUND: Thyroid cancer (TC) is the most common endocrine malignancy. TC patients have a good prognosis and a low disease-related mortality rate. Since the patients are often young, they may be at a higher risk for a second primary malignancy (SPM). We sought to determine the incidence, risk and types of SPM between 1980-2011, and to assess SPM trends over time among Israeli TC patients. METHODS: Data were derived from the Israel National Cancer Registry. Primary TC patients diagnosed during 1980-2009 were followed-up for SPM incidence until December 31, 2011...
March 24, 2017: Thyroid: Official Journal of the American Thyroid Association
https://www.readbyqxmd.com/read/28338427/long-term-endocrine-outcome-of-suprasellar-arachnoid-cysts
#7
Ji Yeoun Lee, Young Ah Lee, Hae Woon Jung, Sangjoon Chong, Ji Hoon Phi, Seung-Ki Kim, Choong-Ho Shin, Kyu-Chang Wang
OBJECTIVE Due to their distinct location, suprasellar arachnoid cysts are known to cause a wide variety of problems, such as hydrocephalus, endocrine symptoms, and visual abnormalities. The long-term outcome of these cysts has not been elucidated. To find out the long-term outcome of suprasellar arachnoid cysts, a retrospective review of the patients was performed. The neurological and endocrine symptoms were thoroughly reviewed. METHODS Forty-five patients with suprasellar arachnoid cysts, with an average follow-up duration of 9...
March 24, 2017: Journal of Neurosurgery. Pediatrics
https://www.readbyqxmd.com/read/28338181/gene-expression-of-inflammatory-markers-in-adipose-tissue-between-obese-women-with-polycystic-ovary-and-normal-obese-women
#8
G Alshammari, R Khan, J Brameld, S Amer, M A Lomax
OBJECTIVE: The pathogenesis of polycystic ovary syndrome (PCOS), a common endocrine disease and metabolic disturbance, is still unknown. The aim of the study was to investigate whether patients with PCOS display increased expression of inflammatory markers in adipose tissue. PATIENTS AND METHODS: Two groups of women were investigated, those diagnosed with PCOS (n = 8) and age and BMI-matched normal women (n = 12). Their age was between 20-45 years and all subjects were apparently healthy and did not take any medications...
March 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/28337809/expanded-newborn-screening-program-in-saudi-arabia-incidence-of-screened-disorders
#9
Majid Alfadhel, Ali Al Othaim, Saif Al Saif, Fuad El Mutairi, Moeenaldeen Alsayed, Zuhair Rahbeeni, Hamad Alzaidan, Mohammed Alowain, Zuhair Al-Hassnan, Mohamad Saeedi, Saeed Aljohery, Ali Alasmari, Eissa Faqeih, Mansour Alwakeel, Maher AlMashary, Sulaiman Almohameed, Mohammed Alzahrani, Abeer Migdad, Osama Y Al-Dirbashi, Mohamed Rashed, Mohamed Alamoudi, Minnie Jacob, Lujane Alahaidib, Fahd El-Badaoui, Amal Saadallah, Ayman Alsulaiman, Wafaa Eyaid, Ali Al-Odaib
AIM: To address the implementation of the National Newborn Screening Program (NBS) in Saudi Arabia and stratify the incidence of the screened disorders. METHODS: A retrospective study conducted between 1 August 2005 and 31 December 2012, total of 775 000 newborns were screened from 139 hospitals distributed among all regions of Saudi Arabia. The NBS Program screens for 16 disorders from a selective list of inborn errors of metabolism (IEM) and endocrine disorders...
March 24, 2017: Journal of Paediatrics and Child Health
https://www.readbyqxmd.com/read/28336912/fgf21-regulates-t-cell-development-in-the-neonatal-and-juvenile-thymus
#10
Yoshiaki Nakayama, Yuki Masuda, Hiroya Ohta, Tomohiro Tanaka, Miwa Washida, Yo-Ichi Nabeshima, Ayumi Miyake, Nobuyuki Itoh, Morichika Konishi
We have previously shown that Fibroblast growth factor 21 (Fgf21) is expressed in the thymus as well as in the liver. In line with this expression profile, Fgf21 was recently reported to protect against ageing-related thymic senescence by improving the function of thymic epithelial cells (TECs). However, the function of Fgf21 in the juvenile thymus remained to be elucidated. We investigated the physiological roles of Fgf21 in the juvenile thymus and found that young Fgf21 knockout mice, but not β-Klotho knockout mice nor adult Fgf21 knockout mice, showed a significant reduction in the percentage of single-positive CD4(+) and CD8(+) thymocytes without obvious alteration in TECs...
March 23, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28336832/-surgical-and-non-surgical-management-of-primary-hyperparathyroidism-how-do-calcimimetics-work
#11
Yasuhiro Takeuchi
Primary hyperparathyroidism is a common endocrine disease. The first line therapy for the disease is surgical removal of affected parathyroid gland(s). Other therapeutic options with medication are needed to be established, because many of patients with primary hyperparathyroidism have few or no symptoms and are expected to have a long life expectancy without surgery. Cinacalcet as a calcimimetic, bisphosphonates and denosumab are promising candidates for medical management of the disease. Effectiveness and efficiency of these drugs for patients with primary hyperparathyroidism is to be evaluated in comparison with surgical treatment...
2017: Clinical Calcium
https://www.readbyqxmd.com/read/28336826/-etiology-and-pathogenesis-of-primary-hyperparathyroidism
#12
Mika Yamauchi, Toshitsugu Sugimoto
Primary hyperparathyroidism(pHPT)is a frequent endocrine disease in which abnormal calcium(Ca)regulation leads to hypercalcemia. The most frequent cause of pHPT in more than 80% of patients is an adenoma, followed by hyperplasia in about 15%, and cancer in 1~5%. Although most cases of pHPT are sporadic, a few are familial(hereditary), and this is known as familial hyperparathyroidism(FHPT). Gene abnormalities that affect cyclin D1 signaling(CCND1, CDC73, CDKN1B), Wnt/β-catenin signaling(MEN1), and calcium-sensing receptor signaling(CaSR, GNA11, AP2S1)play a role in the etiology and pathogenesis of pHPT...
2017: Clinical Calcium
https://www.readbyqxmd.com/read/28336825/-divergent-functions-of-the-calcium-sensing-receptor-other-than-regulation-ofmineral-metabolism
#13
Daisuke Inoue
The calcium-sensing receptor(CaSR)is a G protein-coupled membrane receptor that binds extracellular Ca2+and other cations as a ligand. CaSR is expressed in parathyroid glands at the highest level and plays a critical role in the regulation of extracellular calcium. CaSR is also expressed by a wide variety of tissues other than calcium metabolic organs. In this overview, divergent roles of CaSR in inflammasome as well as various tissues including intestines, lungs, neurons and endocrine pancreas will be briefly summarized...
2017: Clinical Calcium
https://www.readbyqxmd.com/read/28336499/radical-resection-of-the-pancreas-should-not-always-be-necessary-in-the-surgical-management-of-pancreatic-solid-pseudopapillary-tumor-in-children
#14
Emre Divarcı, Zafer Dökümcü, Nazan Çetingül, Deniz Nart, Funda Yılmaz Barbet, Orkan Ergün, Ahmet Çelik
BACKGROUND/AIMS: Pancreatic solid pseudopapillary tumor (SPT) is a rare neoplasm in children. In this study, we aimed to present our surgical strategy based on minimal resection by enucleation or limited resection in localized pancreatic SPT. MATERIALS AND METHODS: We retrospectively analyzed the medical records of children who underwent surgical resection between October 2011 and September 2016. RESULTS: Five female patients with a median age of 15 years (range, 14-17 years) were operated...
March 23, 2017: Turkish Journal of Gastroenterology: the Official Journal of Turkish Society of Gastroenterology
https://www.readbyqxmd.com/read/28336389/metformin-ameliorates-uterine-defects-in-a-rat-model-of-polycystic-ovary-syndrome
#15
Yuehui Zhang, Min Hu, Fanci Meng, Xiaoyan Sun, Hongfei Xu, Jiao Zhang, Peng Cui, Njomeza Morina, Xin Li, Wei Li, Xiao-Ke Wu, Mats Brännström, Ruijin Shao, Håkan Billig
Adult rats treated concomitantly with insulin and human chorionic gonadotropin exhibit endocrine, metabolic, and reproductive abnormalities that are very similar to those observed in polycystic ovary syndrome (PCOS) patients. In this study, we used this rat model to assess the effects of metformin on PCOS-related uterine dysfunction. In addition to reducing androgen levels, improving insulin sensitivity, and correcting the reproductive cycle, metformin treatment induced morphological changes in the PCOS-like uterus...
March 18, 2017: EBioMedicine
https://www.readbyqxmd.com/read/28336086/incretin-hormones-regulate-microglia-oxidative-stress-survival-and-expression-of-trophic-factors
#16
Lindsay Joy Spielman, Deanna Lynn Gibson, Andis Klegeris
The incretin hormones glucagon-like peptide (GLP)-1 and glucose-dependent insulinotropic polypeptide (GIP) are primarily known for their metabolic function in the periphery. GLP-1 and GIP are secreted by intestinal endocrine cells in response to ingested nutrients. Both GLP-1 and GIP stimulate the production and release of insulin from pancreatic β cells as well as exhibit several growth-regulating effects on peripheral tissues. GLP-1 and GIP are also present in the brain, where they provide modulatory and anti-apoptotic signals to neurons...
March 8, 2017: European Journal of Cell Biology
https://www.readbyqxmd.com/read/28335863/zebrafish-in-toxicology-and-environmental-health
#17
Kathryn Bambino, Jaime Chu
As manufacturing processes and development of new synthetic compounds increase to keep pace with the expanding global demand, environmental health, and the effects of toxicant exposure are emerging as critical public health concerns. Additionally, chemicals that naturally occur in the environment, such as metals, have profound effects on human and animal health. Many of these compounds are in the news: lead, arsenic, and endocrine disruptors such as bisphenol A have all been widely publicized as causing disease or damage to humans and wildlife in recent years...
2017: Current Topics in Developmental Biology
https://www.readbyqxmd.com/read/28335861/zebrafish-pancreas-development-and-regeneration-fishing-for-diabetes-therapies
#18
Victoria E Prince, Ryan M Anderson, Gokhan Dalgin
The zebrafish pancreas shares its basic organization and cell types with the mammalian pancreas. In addition, the developmental pathways that lead to the establishment of the pancreatic islets of Langherhans are generally conserved from fish to mammals. Zebrafish provides a powerful tool to probe the mechanisms controlling establishment of the pancreatic endocrine cell types from early embryonic progenitor cells, as well as the regeneration of endocrine cells after damage. This knowledge is, in turn, applicable to refining protocols to generate renewable sources of human pancreatic islet cells that are critical for regulation of blood sugar levels...
2017: Current Topics in Developmental Biology
https://www.readbyqxmd.com/read/28335784/the-benefit-of-adjuvant-radiotherapy-after-breast-conserving-surgery-in-older-patients-with-low-risk-breast-cancer-a-meta-analysis-of-randomized-trials
#19
Christiane Matuschek, Edwin Bölke, Jan Haussmann, Svjetlana Mohrmann, Carolin Nestle-Krämling, Peter Arne Gerber, Stefanie Corradini, Klaus Orth, Kai Kammers, Wilfried Budach
PURPOSE/OBJECTIVE(S): It is currently unclear whether patients with low risk breast cancer receiving adjuvant endocrine therapy need adjuvant radiation therapy after breast conserving surgery. The data of randomized trials are available. MATERIALS/METHODS: In a database search 5 randomized trials including in total 3766 mostly elderly patients with early stage breast cancer treated either with adjuvant endocrine therapy or with endocrine therapy and additional whole breast radiation after breast conserving surgery were identified...
March 23, 2017: Radiation Oncology
https://www.readbyqxmd.com/read/28335647/sorafenib-for-the-treatment-of-breast-cancer
#20
Giuseppe Bronte, Daniele Andreis, Sara Bravaccini, Roberta Maltoni, Lorenzo Cecconetto, Alessio Schirone, Alberto Farolfi, Anna Fedeli, Patrizia Serra, Caterina Donati, Dino Amadori, Andrea Rocca
Breast cancer treatment includes many options depending on the tumor clinicopathological profile, which groups breast cancer into various subtypes. Bevacizumab is currently the only drug capable of targeting angiogenesis in breast cancer. Sorafenib has also been studied in combination with other agents. Areas covered: Pharmacological aspects of sorafenib, including results from preclinical studies on breast cancer cells; findings about clinical efficacy and safety in both single-arm and randomized clinical trials; ongoing trials...
March 24, 2017: Expert Opinion on Pharmacotherapy
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