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Growth hormone deficiency

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https://www.readbyqxmd.com/read/28088007/impairment-of-host-liver-repopulation-by-transplanted-hepatocytes-in-aged-rats-and-the-release-by-short-term-growth-hormone-treatment
#1
Peggy Stock, Maximilian Bielohuby, Martin S Staege, Mei-Ju Hsu, Martin Bidlingmaier, Bruno Christ
Hepatocyte transplantation is an alternative to whole liver transplantation. Yet, efficient liver repopulation by transplanted hepatocytes is low in livers of old animals. This restraint might be because of the poor proliferative capacity of aged donor hepatocytes or the regenerative impairment of the recipient livers. The age-dependent liver repopulation by transplanted wild-type hepatocytes was investigated in juvenile and senescent rats deficient in dipeptidyl-peptidase IV. Repopulation was quantified by flow cytometry and histochemical estimation of dipeptidyl-peptidase IV enzyme activity of donor cells in the negative host liver...
January 11, 2017: American Journal of Pathology
https://www.readbyqxmd.com/read/28073935/brain-structure-and-function-associated-with-younger-adults-in-growth-hormone-receptor-deficient-humans
#2
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/28068655/carotid-intima-media-thickness-in-children-treated-with-growth-hormone-a-follow-up-study-over-three-years
#3
Juliane Rothermel, Caroline Knop, Nina Lass, Christina Toschke, Rainer Wunsch, Thomas Reinehr
BACKGROUND: There is an ongoing discussion whether high doses of growth hormone (GH) may lead to cardiovascular diseases. Therefore, we studied the longitudinal relationships between GH treatment and carotid intima-media thickness (cIMT), which is predictive of the development of atherosclerosis. METHODS: We measured blood pressure, lipids, hemoglobin HbA1c, IGF-1, IGFBP-3, and cIMT in 28 children treated with supraphysiological doses of GH (mean age 9.8 ± 2.2 years, 39% males) and 36 children suffering from GH deficiency (GHD) and treated with physiological doses of GH (mean age 9...
January 10, 2017: Hormone Research in Pædiatrics
https://www.readbyqxmd.com/read/28067847/the-impact-of-growth-hormone-therapy-on-the-apoptosis-assessment-in-cd34-hematopoietic-cells-from-children-with-growth-hormone-deficiency
#4
Miłosz Piotr Kawa, Iwona Stecewicz, Katarzyna Piecyk, Edyta Paczkowska, Dorota Rogińska, Anna Sobuś, Karolina Łuczkowska, Ewa Pius-Sadowska, Elżbieta Gawrych, Elżbieta Petriczko, Mieczysław Walczak, Bogusław Machaliński
Growth hormone (GH) modulates hematopoietic cell homeostasis and is associated with apoptosis control, but with limited mechanistic insights. Aim of the study was to determine whether GH therapeutic supplementation (GH-TS) could affect apoptosis of CD34+ cells enriched in hematopoietic progenitor cells of GH deficient (GHD) children. CD34+ cells from peripheral blood of 40 GHD children were collected before and in 3rd and 6th month of GH-TS and compared to 60 controls adjusted for bone age, sex, and pubertal development...
January 7, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28067796/combined-effects-of-androgen-and-growth-hormone-on-osteoblast-marker-expression-in-mouse-c2c12-and-mc3t3-e1-cells-induced-by-bone-morphogenetic-protein
#5
Kosuke Kimura, Tomohiro Terasaka, Nahoko Iwata, Takayuki Katsuyama, Motoshi Komatsubara, Ryota Nagao, Kenichi Inagaki, Fumio Otsuka
Osteoblasts undergo differentiation in response to various factors, including growth factors and steroids. Bone mass is diminished in androgen- and/or growth hormone (GH)-deficient patients. However the functional relationship between androgen and GH, and their combined effects on bone metabolism, remains unclear. Here we investigated the mutual effects of androgen and GH on osteoblastic marker expression using mouse myoblastic C2C12 and osteoblast-like MC3T3-E1 cells. Combined treatment with dihydrotestosterone (DHT) and GH enhanced BMP-2-induced expression of Runx2, ALP, and osteocalcin mRNA, compared with the individual treatments in C2C12 cells...
January 5, 2017: Journal of Clinical Medicine
https://www.readbyqxmd.com/read/28065924/gibberellins-regulate-iron-deficiency-response-by-influencing-iron-transport-and-translocation-in-rice-seedlings-oryza-sativa
#6
Baolan Wang, Haifang Wei, Zhen Xue, Wen-Hao Zhang
BACKGROUND AND AIMS: Gibberellins (GAs) are a class of plant hormones with diverse functions. However, there has been little information on the role of GAs in response to plant nutrient deficiency. METHODS: To evaluate the roles of GAs in regulation of Fe homeostasis, the effects of GA on Fe accumulation and Fe translocation in rice seedlings were investigated using wild-type, a rice mutant (eui1) displaying enhnaced endogenous GA concentrations due to a defect in GA deactivation, and transgenic rice plants overexpressing OsEUI KEY RESULTS: Exposure to Fe-deficient medium significantly reduced biomass of rice plants...
January 8, 2017: Annals of Botany
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
#7
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/28052433/diverse-functions-of-multidrug-and-toxin-extrusion-mate-transporters-in-citric-acid-efflux-and-metal-homeostasis-in-medicago-truncatula
#8
Junjie Wang, Qiuqiang Hou, Penghui Li, Lina Yang, Xuecheng Sun, Vagner A Benedito, Jiangqi Wen, Beibei Chen, Kirankumar S Mysore, Jian Zhao
The MATE transporter family comprises 70 members in the Medicago truncatula genome, and they play seemingly important, yet mostly uncharacterized, physiological functions. Here, we employed bioinformatics and molecular genetics to identify and characterize MATE transporters involved in citric acid export, Al(3+) tolerance and Fe translocation. MtMATE69 is a citric acid transporter induced by Fe-deficiency. Overexpression of MtMATE69 in hairy roots altered Fe homeostasis and hormone levels under Fe-deficient or Fe-oversupplied conditions...
January 4, 2017: Plant Journal: for Cell and Molecular Biology
https://www.readbyqxmd.com/read/28049234/chronic-kidney-disease-mineral-bone-disorder-in-korean-patients-a-report-from-the-korean-cohort-study-for-outcomes-in-patients-with-chronic-kidney-disease-know-ckd
#9
Chang Seong Kim, Eun Hui Bae, Seong Kwon Ma, Seung Hyeok Han, Kyu Beck Lee, Joongyub Lee, Kook Hwan Oh, Dong Wan Chae, Soo Wan Kim
This study examined the characteristics of biochemical parameters, bone diseases, and vascular calcification in Korean patients with chronic kidney disease (CKD) not yet on dialysis. Serum levels of fibroblast growth factor 23 (FGF23), intact parathyroid hormone (iPTH), 25-hydroxyvitamin D3 (25D), and 1,25-dihydroxyvitamin D3 (1,25D); lumbar spine, total hip, and femur neck bone mineral densities; and brachial-to-ankle pulse wave velocity (baPWV) representing vascular calcification were measured at baseline for 2,238 CKD patients in the KoreaN Cohort Study for Outcomes in Patients With CKD (KNOW-CKD)...
February 2017: Journal of Korean Medical Science
https://www.readbyqxmd.com/read/28040534/cardiovascular-risk-factors-in-survivors-of-childhood-hematopoietic-cell-transplantation-treated-with-total-body-irradiation-a-longitudinal-analysis
#10
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/28032143/an-evidence-based-review-of-the-genotoxic-and-reproductive-effects-of-sulfur-mustard
#11
REVIEW
Fazlullah Khan, Kamal Niaz, Fatima Ismail Hassan, Mohammad Abdollahi
Sulfur mustard (SM) is a chemical warfare agent which is cytotoxic in nature, and at the molecular level, SM acts as DNA alkylating agent leading to genotoxic and reproductive effects. Mostly, the exposed areas of the body are the main targets for SM; however, it also adversely affects various tissues of the body and ultimately exhibits long-term complications including genotoxic and reproductive effects, even in the next generations. The effect of SM on reproductive system is the reason behind male infertility...
December 28, 2016: Archives of Toxicology
https://www.readbyqxmd.com/read/28031934/stories-of-experiences-of-care-for-growth-hormone-deficiency-the-crescere-project
#12
Maria G Marini, Paola Chesi, Laura Mazzanti, Laura Guazzarotti, Teresa D Toni, Maria C Salerno, Annunziata Officioso, Maria Parpagnoli, Cristina Angeletti, Maria F Faienza, Maria L Iezzi, Tommaso Aversa, Cinzia Sacchetti
AIMS: Growth hormone deficiency therapy is demanding for patients and caregivers. Teams engaged in the clinical management of growth hormone deficiency therapy need to know how families live with this condition, to provide an adequate support and prevent the risk of withdrawal from therapy. METHODS: Using Narrative Medicine, testimonies from patients, their parents and providers of care were collected from 11 Italian centers. Narrations were analyzed throughout an elaboration of recurring words and expressions...
March 2016: Future Science OA
https://www.readbyqxmd.com/read/28018694/anterior-hypopituitarism-and-treatment-response-in-hunter-syndrome-a-comparison-of-two-patients
#13
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
#14
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/28004416/changeability-of-the-fully-methylated-status-of-the-15q11-2-region-in-induced-pluripotent-stem-cells-derived-from-a-patient-with-prader-willi-syndrome
#15
Hironobu Okuno, Kazuhiko Nakabayashi, Kousei Abe, Takayuki Ando, Tsukasa Sanosaka, Jun Kohyama, Wado Akamatsu, Manabu Ohyama, Takao Takahashi, Kenjiro Kosaki, Hideyuki Okano
Prader-Will syndrome (PWS) is characterized by hyperphagia, growth hormone deficiency and central hypogonadism caused by the dysfunction of the hypothalamus. Patients with PWS present with methylation abnormalities of the PWS-imprinting control region in chromosome 15q11.2, subject to parent-of-origin-specific methylation and controlling the parent-of-origin-specific expression of other paternally expressed genes flanking the region. In theory, the reversal of hypermethylation in the hypothalamic cells could be a promising strategy for the treatment of PWS patients, since cardinal symptoms of PWS patients are correlated with dysfunction of the hypothalamus...
December 21, 2016: Congenital Anomalies
https://www.readbyqxmd.com/read/28002818/safety-outcomes-and-near-adult-height-gain-of-growth-hormone-treated-children-with-shox-deficiency-data-from-an-observational-study-and-a-clinical-trial
#16
Imane Benabbad, Myriam Rosilio, Christopher J Child, Jean-Claude Carel, Judith L Ross, Cheri L Deal, Stenvert L S Drop, Alan G Zimmermann, Nan Jia, Charmian A Quigley, Werner F Blum
BACKGROUND/AIMS: To assess auxological and safety data for growth hormone (GH)-treated children with SHOX deficiency. METHODS: Data were examined for GH-treated SHOX-deficient children (n = 521) from the observational Genetics and Neuroendocrinology of Short Stature International Study (GeNeSIS). For patients with near-adult height information, GeNeSIS results (n = 90) were compared with a clinical trial (n = 28) of SHOX-deficient patients. Near-adult height was expressed as standard deviation score (SDS) for chronological age, potentially increasing the observed effect of treatment...
December 22, 2016: Hormone Research in Pædiatrics
https://www.readbyqxmd.com/read/28000793/root-transcriptome-of-two-contrasting-indica-rice-cultivars-uncovers-regulators-of-root-development-and-physiological-responses
#17
Alka Singh, Pramod Kumar, Vibhav Gautam, Balakrishnan Rengasamy, Bijan Adhikari, Makarla Udayakumar, Ananda K Sarkar
The huge variation in root system architecture (RSA) among different rice (Oryza sativa) cultivars is conferred by their genetic makeup and different growth or climatic conditions. Unlike model plant Arabidopsis, the molecular basis of such variation in RSA is very poorly understood in rice. Cultivars with stable variation are valuable resources for identification of genes involved in RSA and related physiological traits. We have screened for RSA and identified two such indica rice cultivars, IR-64 (OsAS83) and IET-16348 (OsAS84), with stable contrasting RSA...
December 21, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27998231/hypothalamic-pituitary-axis-dysfunction-in-survivors-of-childhood-cns-tumors-importance-of-systematic-follow-up-and-early-endocrine-consultation
#18
Wassim Chemaitilly, Gregory T Armstrong, Amar Gajjar, Melissa M Hudson
The Oncology Grand Rounds series is designed to place original reports published in the Journal into clinical context. A case presentation is followed by a description of diagnostic and management challenges, a review of the relevant literature, and a summary of the authors' suggested management approaches. The goal of this series is to help readers better understand how to apply the results of key studies, including those published in Journal of Clinical Oncology, to patients seen in their own clinical practice...
December 20, 2016: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/27998218/prevalence-and-risk-factors-of-early-endocrine-disorders-in-childhood-brain-tumor-survivors-a-nationwide-multicenter-study
#19
Sarah C Clement, Antoinette Y N Schouten-van Meeteren, Annemieke M Boot, Hedy L Claahsen-van der Grinten, Bernd Granzen, K Sen Han, Geert O Janssens, Erna M Michiels, A S Paul van Trotsenburg, W Peter Vandertop, Dannis G van Vuurden, Leontien C M Kremer, Hubert N Caron, Hanneke M van Santen
Purpose To evaluate the prevalence of, and risk factors for, early endocrine disorders in childhood brain tumor survivors (CBTS). Patients and Methods This nationwide study cohort consisted of 718 CBTS who were diagnosed between 2002 and 2012, and who survived ≥ 2 years after diagnosis. Patients with craniopharyngeoma or a pituitary gland tumor were excluded. Results of all endocrine investigations, which were performed at diagnosis and during follow-up, were collected from patient charts. Multivariable logistic regression was used to study associations between demographic and tumor- and treatment-related variables and the prevalence of early endocrine disorders...
December 20, 2016: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/27994514/the-correlation-between-parp1-and-brca1-in-ar-positive-triple-negative-breast-cancer
#20
Jiayan Luo, Juan Jin, Fang Yang, Zijia Sun, Wenwen Zhang, Yaqin Shi, Jing Xu, Xiaoxiang Guan
Triple-negative breast cancer (TNBC) lacks estrogen receptor (ER), progesterone receptor (PR) and human epidermal growth factor receptor 2 (HER-2) expression and thus cannot benefit from conventional hormonal or anti-HER2 targeted therapies. Anti-androgen therapy has shown a certain effect on androgen receptor (AR) positive TNBC. The emerging researches have proved that poly (ADP-ribose) polymerase (PARP) inhibitor is effective in BRCA1-deficient breast cancers. We demonstrated that combination of AR antagonist (bicalutamide) and PARP inhibitor (ABT-888) could inhibit cell viability and induce cell apoptosis significantly whatever in vitro or in vivo setting in AR-positive TNBC...
2016: International Journal of Biological Sciences
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