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https://www.readbyqxmd.com/read/28535639/-curative-effect-analysis-of-two-surgical-methods-for-removal-of-pituitary-adenoma-via-endonasal-transsphenoidal-approach
#1
Y Han, Z Q Jiang, X L Zheng, L Li, F Y Lou, S J Zhang
Objective: To compare the efficacy of endoscopic endonasal transsphenoidal surgery and microsurgery for pituitary adenomas. Methods: One hundred and ten patients with pituitary adenoma who were treated by single nostril transsphenoidal surgery in the department of neurosurgery of the First Affiliated Hospital of Bengbu Medical College from June 2014 to December 2016 were enrolled.These cases were randomly divided into endoscopic group 53 cases (including 36 cases of functional pituitary adenoma and 17 cases of non-functional pituitary adenoma) and microscope group 57 cases (including 34 cases of pituitary adenoma and 23 cases of non-functional pituitary adenomas), with no significant difference in preoperative clinical data about gender, age, tumor size and endocrine function (P>0...
May 23, 2017: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/28535579/review-of-heterotopic-thyroid-autotransplantation
#2
Mahmoud Sakr, Ahmed Mahmoud
Total thyroidectomy is increasingly accepted for the management of bilateral benign thyroid disorders. Postoperatively, patients require lifelong levothyroxine replacement therapy to avoid postoperative hypothyroidism, which besides the burden of compliance, has been proven to be associated with several long-term side effects. Heterotopic thyroid autotransplantation was proposed several decades ago to avoid the need for life-long postoperative replacement therapy with maintaining the autoregulatory mechanism of thyroxin production inside the body according to its needs...
May 24, 2017: Clinical and Experimental Otorhinolaryngology
https://www.readbyqxmd.com/read/28535578/coasting-withholding-gonadotrophins-for-preventing-ovarian-hyperstimulation-syndrome
#3
REVIEW
Arianna D'Angelo, Nazar N Amso, Rudaina Hassan
BACKGROUND: Ovarian hyperstimulation syndrome (OHSS) is an iatrogenic and potentially life threatening condition resulting from excessive ovarian stimulation. Reported incidence of moderate to severe OHSS ranges from 0.6% to 5% of in vitro fertilization (IVF) cycles. The factors contributing to OHSS have not been completely explained. The release of vasoactive substances secreted by the ovaries under human chorionic gonadotrophin (hCG) stimulation may play a key role in triggering this syndrome...
May 23, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28535535/inflammation-is-an-important-covariate-for-the-crosstalk-of-sleep-and-the-hpa-axis-in-rheumatoid-arthritis
#4
Rainer H Straub, Jaqueline Detert, René Dziurla, Ingo Fietze, Peter-Andreas Loeschmann, Gerd R Burmester, Frank Buttgereit
Rheumatoid arthritis (RA) patients have sleep problems, and inflammation influences sleep. We demonstrated that sleep quality improves during intensified treatment with methotrexate (MTX) or etanercept (ETA). Since the hypothalamic-pituitary-adrenal (HPA) axis is involved in sleep regulation, this study investigated the interrelation between sleep parameters, inflammation as objectified by C-reactive protein (CRP), and serum cortisol and adrenocorticotropic hormone (ACTH) levels. Thirty-one eligible patients (disease activity score, DAS28CRP ≥3...
May 24, 2017: Neuroimmunomodulation
https://www.readbyqxmd.com/read/28535520/phosphate-in-chronic-kidney-disease-progression
#5
Mario Cozzolino, Denis Foque, Paola Ciceri, Andrea Galassi
A direct and independent association between serum phosphate (P) levels and mortality has been reported. High circulating P concentrations, still within the normal range, was associated with unfavourable outcomes in normal subjects as well as in chronic kidney disease (CKD) patients. Experimental data support the notion that P overload may hamper survival expectancy, directly inducing vascular, skeletal, and renal ageing. The balance of P results from dietary intake, intestinal absorption, glomerular filtration, tubular resorption, and hormonal asset...
2017: Contributions to Nephrology
https://www.readbyqxmd.com/read/28535369/packing-on-the-pounds-in-response-to-bacterial-growth-conditions
#6
Sabih Rashid, Lesley T MacNeil
Reporting in Nature Cell Biology, Lin and Wang (2017) show that bacterial methyl metabolism impacts host mitochondrial dynamics and lipid storage in C. elegans. The authors propose a model whereby bacterial metabolic products regulate a nuclear hormone receptor that promotes lipid accumulation through expression of a secreted Hedgehog-like protein.
May 22, 2017: Developmental Cell
https://www.readbyqxmd.com/read/28535350/activation-of-phenyl-4-2-oxo-3-alkylimidazolidin-1-yl-benzenesulfonates-prodrugs-by-cyp1a1-as-new-antimitotics-targeting-breast-cancer-cells
#7
Sébastien Fortin, Xavier Charest-Morin, Vanessa Turcotte, Coraline Lauvaux, Jacques Lacroix, Marie-France Côté, Stéphane Gobeil, Rene C-Gaudreault
Prodrug-mediated utilization of the cytochrome P450 (CYP) 1A1 to obtain the selective release of potent anticancer products within cancer tissues is a promising approach in chemotherapy. We herein report the rationale, preparation, biological evaluation and mechanism of action of phenyl 4-(2-oxo-3-alkylimidazolidin-1-yl)benzenesulfonates (PAIB-SOs), that are antimicrotubule prodrugs activated by CYP1A1. Although PAIB-SOs are inert in most cells tested, they are highly cytocidal towards several human breast cancer cells, including hormone-independent and chemoresistant types...
May 23, 2017: Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/28535008/how-much-medium-do-you-use-for-cell-culture-medium-volume-influences-mineralization-and-osteoclastogenesis-in%C3%A2-vitro
#8
Yoshitaka Yoshimura, Takashi Kikuiri, Tomokazu Hasegawa, Mino Matsuno, Hajime Minamikawa, Yoshiaki Deyama, Kuniaki Suzuki
Bone is maintained by a balance between bone formation and resorption. This remodeling is controlled by a wide variety of systemic and local factors including hormones, cytokines and mechanical stresses. The present in vitro study examined the impact of medium volume, using 0.4, 0.6, 0.8, 1.0, 1.5 and 2.0 ml/well in a 24‑well plate, on the differentiation of osteoblasts and osteoclasts. There were no differences in the alkaline phosphatase activity of osteoblasts amongst the groups; however, the area of mineral deposition was decreased in a media volume‑dependent manner...
May 19, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28534998/proliferation%C3%A2-inhibiting-pathways-in-liver-regeneration-review
#9
Menggang Liu, Ping Chen
Liver regeneration, an orchestrated process, is the primary compensatory mechanism following liver injury caused by various factors. The process of liver regeneration consists of three stages: Initiation, proliferation and termination. Proliferation‑promoting factors, which stimulate the recovery of mitosis in quiescent hepatocytes, are essential in the initiation and proliferation steps of liver regeneration. Proliferation‑promoting factors act as the 'motor' of liver regeneration, whereas proliferation inhibitors arrest cell proliferation when the remnant liver reaches a suitable size...
May 19, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28534997/reduced-expression-of-follicle-stimulating-hormone-receptor-mrna-and-protein-in-pregnancies-complicated-by-pre%C3%A2-eclampsia
#10
Mo Li, Yifan Jia, Yan Ling, Yilu Chen, Lu Zhang, Dan Luo, Lidan Lai, Meijun Guo, Dalei Zhang, Min Ren, Hong Xu, Haibin Kuang
Expression and function of the follicle‑stimulating hormone receptor (FSHR) are traditionally thought to be limited to the ovary in females. However, recent studies have indicated that the FSHR is also expressed in endothelial cells of the placental vasculature, and that the haploinsufficiency of the feto‑placental FSHR impaired the growth of the mouse placenta. The aim of the current study was to investigate the placental expression of FSH and FSHR in pregnancies complicated by pre‑eclampsia. Placental tissue samples were collected from 20 pregnancies with pre‑eclampsia and 25 normal pregnancies...
May 18, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28534698/effect-of-parathyroid-hormone-on-healing-in-osteoporotic-fractures-via-a-phospholipase-c-independent-pathway
#11
Wei-Long Li, Xiao Yu, Zhi-Ping Huang, Qing-Jiang Pang
Objective This study was performed to investigate the effect of parathyroid hormone (PTH) on healing in osteoporotic fractures via a phospholipase C (PLC)-independent pathway and explore the mechanism of PTH-mediated bone formation. Methods Ninety-six 12-week-old C57BL/6J female mice underwent bilateral ovariectomy. One month later, the lower third of the femur was fractured and the mice were treated using saline, PTH(1-28), PTH(1-34), zoledronic acid (ZA), PTH(1-28)+ZA, and PTH(1-34)+ZA. The mice were killed at weeks 2 and 4 in each group...
January 1, 2017: Journal of International Medical Research
https://www.readbyqxmd.com/read/28534508/utx-promotes-hormonally-responsive-breast-carcinogenesis-through-feed-forward-transcription-regulation-with-estrogen-receptor
#12
G Xie, X Liu, Y Zhang, W Li, S Liu, Z Chen, B Xu, J Yang, L He, Z Zhang, T Jin, X Yi, L Sun, Y Shang, J Liang
UTX is implicated in embryonic development and lineage specification. However, how this X-linked histone demethylase contributes to the occurrence and progression of breast cancer remains to be clarified. Here we report that UTX is physically associated with estrogen receptor (ER) and functions in ER-regulated transcription. We showed that UTX coordinates with JHDM1D and CBP to direct H3K27 methylation-acetylation transition and to create a permissive chromatin state on ER targets. Genome-wide analysis of the transcriptional targets of UTX by ChIP-seq identified a set of genes such as chemokine receptor CXCR4 that are intimately involved in breast cancer tumorigenesis and metastasis...
May 22, 2017: Oncogene
https://www.readbyqxmd.com/read/28534386/regular-daily-consumption-of-turmeric-may-be-a-complementary-agent-for-the-adjuvant-treatment-of-hormone-receptor-positive-breast-cancer
#13
Kadri Altundag
No abstract text is available yet for this article.
March 2017: Journal of B.U.ON.: Official Journal of the Balkan Union of Oncology
https://www.readbyqxmd.com/read/28534357/comparative-study-of-receptor-discordance-between-primary-and-corresponding-metastatic-lesions-in-breast-cancer
#14
Gokmen U Erdem, Kadri Altundag, Nuriye Y Ozdemir, Suleyman Sahin, Nebi S Demirci, Fatih Karatas, Yakup Bozkaya, Aydin Aytekin, Vildan Tasdemir, Alma C Aslan, Ali R Sever, Nurullah Zengin
PURPOSE: It is well-known that tumor phenotype may change during the progression of breast cancer (BC). The purpose in this study was to compare the discordance in estrogen receptor (ER), progesterone receptor (PgR) and human epidermal growth factor receptor 2 (HER2) between primary and recurrent/metastatic lesions (RML) and also to evaluate the prognostic significance of change in tumor phenotype on survival in patients with metastatic BC. METHODS: The medical records of 6638 patients with BC from two breast centers treated between 1992 and 2015 were retrospectively analyzed...
March 2017: Journal of B.U.ON.: Official Journal of the Balkan Union of Oncology
https://www.readbyqxmd.com/read/28534351/the-short-term-safety-of-adjuvant-paclitaxel-plus-trastuzumab-a-single-centre-experience
#15
Ozturk Ates, Veli Sunar, Alma Aslan, Fatih Karatas, Suleyman Sahin, Kadri Altundag
PURPOSE: HER2-amplified breast cancer (BC) has a poor prognosis. The combination of trastuzumab with chemotherapy in the adjuvant setting decreases recurrence and improves overall survival in HER2-positive BC. However, the role of adjuvant treatment in patients with HER2-amplified small BC without lymph node involvement is still under debate. The purpose of this study was to investigate the safety of adjuvant paclitaxel and trastuzumab (APT) in this group of patients. METHODS: A total of 87 operated early BC patients without lymph node involvement (N0) were treated with APT for 12 weeks followed by trastuzumab alone for a total of 9 months...
March 2017: Journal of B.U.ON.: Official Journal of the Balkan Union of Oncology
https://www.readbyqxmd.com/read/28534253/evaluating-the-involvement-and-interaction-of-abscisic-acid-and-mirna156-in-the-induction-of-anthocyanin-biosynthesis-in-drought-stressed-plants
#16
REVIEW
Jorge González-Villagra, Leonid V Kurepin, Marjorie M Reyes-Díaz
ABA is involved in anthocyanin synthesis through the regulation of microRNA156, augmenting the level of expression of anthocyanin synthesis-related genes and, therefore, increasing anthocyanin level. Drought stress is the main cause of agricultural crop loss in the world. However, plants have developed mechanisms that allow them to tolerate drought stress conditions. At cellular level, drought stress induces changes in metabolite accumulation, including increases in anthocyanin levels due to upregulation of the anthocyanin biosynthetic pathway...
May 22, 2017: Planta
https://www.readbyqxmd.com/read/28534229/production-of-a-gonadotropin-releasing-hormone-2-receptor-knockdown-gnrhr2-kd-swine-line
#17
A T Desaulniers, R A Cederberg, G A Mills, C A Lents, B R White
Swine are the only livestock species that produce both the second mammalian isoform of gonadotropin-releasing hormone (GNRH2) and its receptor (GNRHR2). Previously, we reported that GNRH2 and GNRHR2 mediate LH-independent testosterone secretion from porcine testes. To further explore this ligand-receptor complex, a pig model with reduced GNRHR2 expression was developed. Small hairpin RNA sequences targeting porcine GNRHR2 were subcloned into a lentiviral-based vector, lentiviral particles were generated and microinjected into the perivitelline space of zygotes, and embryos were transferred into a recipient...
May 22, 2017: Transgenic Research
https://www.readbyqxmd.com/read/28534114/pediatric-hypothyroidism-diagnosis-and-treatment
#18
Ari J Wassner
Thyroid hormone has important physiologic functions in nearly every organ system. The critical role of thyroid hormone in growth and in physical and neurologic development lends particular importance to the prompt diagnosis and appropriate treatment of hypothyroidism in infants and children. Congenital hypothyroidism is common and has potentially devastating neurologic consequences. While the approach to diagnosis and treatment of severe congenital hypothyroidism is well established, data continue to emerge about the genetic causes, clinical significance, and prognosis of the milder forms of congenital hypothyroidism that are increasingly being diagnosed by newborn screening...
May 22, 2017: Paediatric Drugs
https://www.readbyqxmd.com/read/28534087/interspecies-differences-in-pth-mediated-pka-phosphorylation-of-the-epithelial-calcium-channel-trpv5
#19
Mark K van Goor, Sjoerd Verkaart, Teunis J van Dam, Martijn A Huynen, Jenny van der Wijst
The epithelial calcium (Ca(2+)) channel TRPV5 (transient receptor potential vanilloid 5) is expressed in the distal convoluted tubule of the kidney and facilitates active Ca(2+) reabsorption. This process is instrumental for the maintenance of Ca(2+) homeostasis. Therefore, all aspects of TRPV5 function are tightly regulated by the calciotropic parathyroid hormone (PTH). Rabbit (rb)TRPV5 channel activity was shown to be stimulated upon PTH-mediated protein kinase A (PKA) phosphorylation. Since there is incomplete conservation of the PKA consensus motif (RR/QxT) across species, the aim of this study was to extend these findings to humans and characterize the expression and function of human (h)TRPV5...
May 22, 2017: Pflügers Archiv: European Journal of Physiology
https://www.readbyqxmd.com/read/28533793/exogenous-supplementation-of-silicon-improved-the-recovery-of-hyperhydric-shoots-in-dianthus-caryophyllus-l-by-stabilizing-the-physiology-and-protein-expression
#20
Prabhakaran Soundararajan, Abinaya Manivannan, Yoon S Cho, Byoung R Jeong
Hyperhydricity is one of the major problems hindering in vitro propagation of Dianthus caryophyllus L. Silicon (Si) is a well-known beneficial element renowned for its stress amelioration properties in plants. This study has demonstrated the physiological and molecular mechanism behind the Si-mediated recovery from hyperhydricity in D. caryophyllus L. 'Green Beauty'. Four weeks old hyperhydric shoots obtained from temporary immersion system were cultured on the Murashige and Skoog medium supplemented with 0 (control), 1...
2017: Frontiers in Plant Science
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