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Growth hormone syndrome

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https://www.readbyqxmd.com/read/28102548/the-shade-avoidance-syndrome-multiple-signals-and-ecological-consequences
#1
REVIEW
Carlos L Ballaré, Ronald Pierik
Plants use photoreceptor proteins to detect the proximity of other plants and to activate adaptive responses. Of these photoreceptors, phytochrome B (phyB), which is sensitive to changes in the red (R) to far-red (FR) ratio of sunlight, is the one that has been studied in greatest detail. The molecular connections between the proximity signal (low R:FR) and a model physiological response (increased elongation growth) have now been mapped in considerable detail in Arabidopsis seedlings. We briefly review our current understanding of these connections, and discuss recent progress in establishing the roles of other photoreceptors in regulating growth-related pathways in response to competition cues...
January 19, 2017: Plant, Cell & Environment
https://www.readbyqxmd.com/read/28099131/turner-syndrome-and-pituitary-adenomas-a-case-report-and-review-of-literature
#2
Tiffany Yeh, Angela Ganan Soto, Jose Bernardo Quintos, Lisa Swartz Topor
BACKGROUND: Turner syndrome (TS) is the most common sex chromosome abnormality in females, typically associated with primary amenorrhea and premature ovarian failure due to gonadal dysgenesis. The association of TS with hypopituitarism is an uncommon finding. The objective of the study was to describe an adolescent with TS with hypergonadotropic hypogonadism and subsequent hypogonadotropic hypogonadism. CASE PRESENTATION: A 16-year-old female with primary amenorrhea was diagnosed with TS based on karyotype 45,XO...
January 18, 2017: Journal of Pediatric Endocrinology & Metabolism: JPEM
https://www.readbyqxmd.com/read/28095041/oral-versus-transdermal-estrogen-in-turner-syndrome-a-systematic-review-and-meta-analysis
#3
Feras Zaiem, Fares Alahdab, Alaa Al Nofal, Mohammad Hassan Murad, Asma Javed
OBJECTIVE: To conduct a systematic review and meta-analysis comparing transdermal estrogens (TDE) versus oral estrogens (OE) in Turner syndrome (TS). METHOD: Randomized trials and observational comparative studies with a minimal follow up of 6 months for skeletal and metabolic outcomes and serum hormone changes. Outcomes were pooled with a random effects model and were reported as mean difference between OE and TDE groups and 95% confidence interval (CI). RESULT: Of 845 candidate references, 4 studies were included...
January 17, 2017: Endocrine Practice
https://www.readbyqxmd.com/read/28090459/anti-m%C3%A3-llerian-hormone-as-a-predictor-of-polycystic-ovary-syndrome-treated-with-clomiphene-citrate
#4
Andon Hestiantoro, Yuwono Sri Negoro, Yohana Afrita, Budi Wiweko, Kanadi Sumapradja, Muharam Natadisastra
OBJECTIVE: This study aimed to determine the threshold of anti-Müllerian hormone (AMH) as predictor of follicular growth failure in polycystic ovary syndrome (PCOS) patients treated with clomiphene citrate (CC). METHODS: Fifty female subjects with PCOS were recruited and divided into two groups based on successful and unsuccessful follicular growth. Related variables such as age, infertility duration, cigarette smoking, use of Moslem hijab, sunlight exposure, fiber intake, body mass index, waist circumference, AMH level, 25-hydroxy vitamin D level, and growth of dominant follicles were obtained, assessed, and statistically analyzed...
December 2016: Clinical and Experimental Reproductive Medicine
https://www.readbyqxmd.com/read/28089836/delayed-csf-rhinorrhea-after-gamma-knife-radiosurgery-with-or-without-preceding-transsphenoidal-resection-for-pituitary-pathology
#5
Avital Perry, Christopher S Graffeo, William R Copeland, Kathryn M Van Abel, Matthew L Carlson, Bruce E Pollock, Michael J Link
BACKGROUND: Skull base cerebrospinal fluid (CSF) leak after gamma knife radiosurgery (GKRS) is a very rare complication. In patients who were treated with both GKRS and transsphenoidal resection (TSR) for pituitary lesions, early CSF leak occurs at a comparable rate to the general TSR population (4%). Delayed CSF leak occurring more than a year after TSR, GKRS, or dual therapy, is exceedingly rare. METHODS: Retrospective chart review and review of the literature RESULTS: We present two cases of delayed CSF leak following GKRS to treat pituitary adenoma...
January 9, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28087977/fibroblast-growth-factor-23-fgf23-in-untreated-nephrotic-syndrome
#6
Ashok Kumar Yadav, Raja Ramachandran, Abhinav Aggarwal, Vinod Kumar, Krishan Lal Gupta, Vivekanand Jha
AIM: Despite its importance in bone and cardiovascular disease in subjects with kidney disease, there is no data on fibroblast growth factor 23 (FGF23) perturbations in nephrotic syndrome. We evaluated FGF23 and markers of mineral bone metabolism in subjects with untreated NS. METHODS: In this cross-sectional study, we measured circulating levels of FGF23, 25-hydroxy vitamin D [25(OH)D], 1,25 di-hydroxy vitamin D [1,25(OH)2 D], serum albumin, serum calcium, phosphorus, creatinine and intact parathyroid hormone (iPTH) in 101 patients with adults onset NS and 40 healthy controls...
January 14, 2017: Nephrology
https://www.readbyqxmd.com/read/28081535/efficacy-and-safety-of-continuous-subcutaneous-infusion-of-recombinant-human-gonadotropins-for-congenital-micropenis-during-early-infancy%C3%A2
#7
Athanasia Stoupa, Dinane Samara-Boustani, Isabelle Flechtner, Graziella Pinto, Isabelle Jourdon, Laura González-Briceño, Maud Bidet, Kathleen Laborde, Didier Chevenne, Anne-Elodie Millischer, Henri Lottmann, Thomas Blanc, Yves Aigrain, Michel Polak, Jacques Beltrand
BACKGROUND: Early postnatal administration of gonadotropins to infants with congenital hypogonadotropic hypogonadism (CHH) can mimic minipuberty, thereby increasing penile growth. We assessed the effects of gonadotropin infusion on stretched penile length (SPL) and hormone levels in infants with congenital micropenis. METHODS: Single-center study including 6 males with micropenis in case of isolated CHH (n = 4), panhypopituitarism (n = 1), and partial androgen insensitivity syndrome (PAIS; n = 1)...
January 12, 2017: Hormone Research in Pædiatrics
https://www.readbyqxmd.com/read/28073935/brain-structure-and-function-associated-with-younger-adults-in-growth-hormone-receptor-deficient-humans
#8
Kaoru Nashiro, Jaime Guevara-Aguirre, Meredith N Braskie, George W Hafzalla, Rico Velasco, Priya Balasubramian, Min Wei, Paul M Thompson, Mara Mather, Marvin D Nelson, Alexandra Guevara, Enrique Teran, Valter D Longo
: Growth hormone receptor deficiency (GHRD) results in short stature, enhanced insulin sensitivity, and low circulating levels of insulin and insulin-like growth factor 1 (IGF-1). Previous studies in mice and humans suggested that GHRD has protective effects against age-related diseases, including cancer and diabetes. Whereas GHRD mice show improved age-dependent cognitive performance, the effect of GHRD on human cognition remains unknown. Using magnetic resonance imaging (MRI), we compared brain structure, function, and connectivity between 13 people with GHRD and 12 unaffected relatives...
January 10, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28063110/toward-the-next-step-in-g-protein-coupled-receptor-research-a-knowledge-driven-analysis-for-the-next-potential-targets-in-drug-discovery
#9
Koji Nagata, Yukie Katayama, Tomomi Sato, Yeondae Kwon, Takeshi Kawabata
More than 800 G protein-coupled receptor (GPCR) genes have been discovered in the human genome. Towards the next step in GPCR research, we performed a knowledge-driven analysis of orphan class-A GPCRs that may serve as novel targets in drug discovery. We examined the relationship between 61 orphan class-A GPCR genes and diseases using the Online Mendelian Inheritance in Man (OMIM) database and the DDSS tool. The OMIM database contains data on disease-related variants of the genes. Particularly, the variants of GPR101, GPR161, and GPR88 are related to the genetic diseases: growth hormone-secreting pituitary adenoma 2, pituitary stalk interruption syndrome (not confirmed), and childhood-onset chorea with psychomotor retardation, respectively...
January 6, 2017: Journal of Structural and Functional Genomics
https://www.readbyqxmd.com/read/28052552/celsr2-encoding-a-planar-cell-polarity-protein-is-a-putative-gene-in-joubert-syndrome-with-cortical-heterotopia-microophthalmia-and-growth-hormone-deficiency
#10
Thierry Vilboux, May Christine V Malicdan, Joseph C Roney, Andrew R Cullinane, Joshi Stephen, Deniz Yildirimli, Joy Bryant, Roxanne Fischer, Meghana Vemulapalli, James C Mullikin, Peter J Steinbach, William A Gahl, Meral Gunay-Aygun
Joubert syndrome is a ciliopathy characterized by a specific constellation of central nervous system malformations that result in the pathognomonic "molar tooth sign" on imaging. More than 27 genes are associated with Joubert syndrome, but some patients do not have mutations in any of these genes. Celsr1, Celsr2, and Celsr3 are the mammalian orthologues of the drosophila planar cell polarity protein, flamingo; they play important roles in neural development, including axon guidance, neuronal migration, and cilium polarity...
January 4, 2017: American Journal of Medical Genetics. Part A
https://www.readbyqxmd.com/read/28049632/paleogenetic-study-of-ancient-dna-suggestive-of-x-linked-acrogigantism
#11
Albert Beckers, Daniel Fernandes, Frederic Fina, Mario Novak, Angelo Abati, Liliya Rostomyan, Albert Thiry, L'Houcine Ouafik, Bertrand Pasture, Ron Pinhasi, Adrian F Daly
Extract: Dear Editor, Pituitary gigantism is caused by chronic growth hormone (GH) hypersecretion by a pituitary lesion before epiphyseal fusion. Genetic causes have been identified in nearly 50% of patients with pituitary gigantism, with germline mutations in the AIP gene being the most frequent cause (Rostomyan et al. 2015). Recently, a new form of pituitary gigantism, X-linked acrogigantism (X-LAG), was described (Trivellin et al. 2014). X-LAG is due to chromosome Xq26.3 duplication and GPR101 is the disease-associated gene (Trivellin et al...
January 3, 2017: Endocrine-related Cancer
https://www.readbyqxmd.com/read/28040833/insights-into-the-relationships-between-diabetes-prediabetes-and-cancer
#12
REVIEW
Lorenzo Scappaticcio, Maria Ida Maiorino, Giuseppe Bellastella, Dario Giugliano, Katherine Esposito
Diabetes mellitus and cancer are two growing health problems. They have in common many modifiable risk factors including sex, age, obesity, physical activity, diet, alcohol, and smoking, and have a long latency before overtly manifesting. Patients with diabetes experience a roughly 20-25% higher cancer incidence compared to individuals without diabetes, and it depends on cancer site. Moreover, patients with diabetes who further develop cancer have increased early and late mortality in comparison with cancer patients without diabetes...
December 31, 2016: Endocrine
https://www.readbyqxmd.com/read/28040534/cardiovascular-risk-factors-in-survivors-of-childhood-hematopoietic-cell-transplantation-treated-with-total-body-irradiation-a-longitudinal-analysis
#13
Danielle Novetsky Friedman, Patrick Hilden, Chaya S Moskowitz, Maya Suzuki, Farid Boulad, Nancy Kernan, Suzanne Wolden, Kevin C Oeffinger, Charles A Sklar
Hematopoietic cell transplantation (HCT) survivors treated with total body irradiation (TBI) are known to be at increased risk for the development of cardiovascular risk factors (CVRF). We sought to characterize the incidence of CVRF in a TBI-exposed survivor cohort and describe prognostic indicators of their development. Retrospective analysis of CVRF in 1-year survivors of leukemia or lymphoma treated with TBI at Memorial Sloan Kettering from April 1987-May 2011. Eligible participants were≤ 21 years of age at TBI and were not on glucocorticoids at the time of entry to Long-Term Follow-Up...
December 28, 2016: Biology of Blood and Marrow Transplantation
https://www.readbyqxmd.com/read/28039838/fibroblast-growth-factor-21-and-its-novel-association-with-oxidative-stress
#14
REVIEW
Miguel Ángel Gómez-Sámano, Mariana Grajales-Gómez, Julia María Zuarth-Vázquez, Ma Fernanda Navarro-Flores, Mayela Martínez-Saavedra, Óscar Alfredo Juárez-León, Mariana G Morales-García, Víctor Manuel Enríquez-Estrada, Francisco J Gómez-Pérez, Daniel Cuevas-Ramos
Fibroblast growth factor 21 (FGF21) is an endocrine-member of the FGF family. It is synthesized mainly in the liver, but it is also expressed in adipose tissue, skeletal muscle, and many other organs. It has a key role in glucose and lipid metabolism, as well as in energy balance. FGF21 concentration in plasma is increased in patients with obesity, insulin resistance, and metabolic syndrome. Recent findings suggest that such increment protects tissue from an increased oxidative stress environment. Different types of physical stress, such as strenuous exercising, lactation, diabetic nephropathy, cardiovascular disease, and critical illnesses, also increase FGF21 circulating concentration...
December 22, 2016: Redox Biology
https://www.readbyqxmd.com/read/28035969/the-neurobiological-impact-of-ghrelin-suppression-after-oesophagectomy
#15
REVIEW
Conor F Murphy, Carel W le Roux
Ghrelin, discovered in 1999, is a 28-amino-acid hormone, best recognized as a stimulator of growth hormone secretion, but with pleiotropic functions in the area of energy homeostasis, such as appetite stimulation and energy expenditure regulation. As the intrinsic ligand of the growth hormone secretagogue receptor (GHS-R), ghrelin appears to have a broad array of effects, but its primary role is still an area of debate. Produced mainly from oxyntic glands in the stomach, but with a multitude of extra-metabolic roles, ghrelin is implicated in complex neurobiological processes...
December 26, 2016: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28029021/bile-acid-nuclear-receptor-farnesoid-x-receptor-therapeutic-target-for-nonalcoholic-fatty-liver-disease
#16
REVIEW
Sun Gi Kim, Byung Kwon Kim, Kyumin Kim, Sungsoon Fang
Nonalcoholic fatty liver disease (NAFLD) is one of the causes of fatty liver, occurring when fat is accumulated in the liver without alcohol consumption. NAFLD is the most common liver disorder in advanced countries. NAFLD is a spectrum of pathology involving hepatic steatosis with/without inflammation and nonalcoholic steatohepatitis with accumulation of hepatocyte damage and hepatic fibrosis. Recent studies have revealed that NAFLD results in the progression of cryptogenic cirrhosis that leads to hepatocarcinoma and cardiovascular diseases such as heart failure...
December 2016: Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28018694/anterior-hypopituitarism-and-treatment-response-in-hunter-syndrome-a-comparison-of-two-patients
#17
Munier A Nour, Paola Luca, David Stephure, Xing-Chang Wei, Aneal Khan
Hypopituitarism is a clinically important diagnosis and has not previously been reported in Hunter syndrome. We contrast two cases with anatomic pituitary anomalies: one with anterior panhypopituitarism and the other with intact pituitary function. Patient 1, a 10-year-old boy with Hunter syndrome, was evaluated for poor growth and an ectopic posterior pituitary gland. Endocrine testing revealed growth hormone (GH) deficiency, secondary adrenal insufficiency, and tertiary hypothyroidism. An improvement in growth velocity with hormone replacement (GH, thyroxine, and corticosteroid) was seen; however, final adult height remained compromised...
2016: Case Reports in Pediatrics
https://www.readbyqxmd.com/read/28018463/concomitant-occurrence-of-turner-syndrome-and-growth-hormone-deficiency
#18
Jung Yu, Ha Young Shin, Chong Guk Lee, Jae Hyun Kim
Turner syndrome (TS) is a genetic disorder in phenotypic females that has characteristic physical features and presents as partial or complete absence of the second sex chromosome. Growth hormone deficiency (GHD) is a condition caused by insufficient release of growth hormone from the pituitary gland. The concomitant occurrence of TS and GHD is rare and has not yet been reported in Korea. Here we report 2 cases of TS and GHD. In case 1, GHD was initially diagnosed. Karyotyping was performed because of the presence of the typical phenotype and poor response to growth hormone therapy, which revealed 45,X/45,X+mar...
November 2016: Korean Journal of Pediatrics
https://www.readbyqxmd.com/read/28007906/igf1-neuronal-response-in-the-absence-of-mecp2-is-dependent-on-tralpha-3
#19
Janaina S de Souza, Cassiano Carromeu, Laila B Torres, Bruno H S Araujo, Fernanda R Cugola, Rui M B Maciel, Alysson R Muotri, Gisele Giannocco
Rett syndrome (RTT) is an X-linked neurodevelopmental disorder in which the MECP2 (methyl CpG-binding protein 2) gene is mutated. Recent studies showed that RTT-derived neurons have many cellular deficits when compared to control, such as: less synapses, lower dendritic arborization and reduced spine density. Interestingly, treatment of RTT-derived neurons with Insulin-like Growth Factor 1 (IGF1) could rescue some of these cellular phenotypes. Given the critical role of IGF1 during neurodevelopment, the present study used human induced pluripotent stem cells (iPSCs) from RTT and control individuals to investigate the gene expression profile of IGF1 and IGF1R on different developmental stages of differentiation...
December 22, 2016: Human Molecular Genetics
https://www.readbyqxmd.com/read/28007843/clinical-characteristics-and-management-of-growth-hormone-excess-in-patients-with-mccune-albright-syndrome
#20
Yong Yao, Yang Liu, Lin Jie Wang, Kan Deng, Hongbo Yang, Lin Lu, Feng Feng, Bing Xing, Hui You, Zimeng Jin, Renzhi Wang, Hui Pan, Shi Chen, Hui Juan Zhu
OBJECTIVE: McCune-Albright syndrome (MAS) is a sporadic, postzygotic disease presenting with fibrous dysplasia, cafe-au-lait spots and multiple endocrinopathies. Growth hormone (GH) excess is an uncommon but potentially severe complication of MAS. This study aims to describe the clinical manifestations of GH excess in the context of MAS, and analyze the responses of these patients to treatments. DESIGN: Retrospective clinical study. METHODS: Clinical data from 52 MAS patients were analyzed...
December 22, 2016: European Journal of Endocrinology
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