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https://www.readbyqxmd.com/read/28330181/optimization-of-medium-composition-for-in-vitro-shoot-proliferation-and-growth-of-date-palm-cv-mejhoul
#1
Mouaad Amine Mazri, Reda Meziani, Jamal El Fadile, Az-Eddine Ezzinbi
The effects of major mineral salts, L-glutamine, myo-inositol and carbon source on shoot bud proliferation of date palm (Phoenix dactylifera L.) cv. Mejhoul were evaluated. Different concentrations of ammonium nitrate (NH4NO3; 550, 825 or 1650 mg/L), potassium nitrate (KNO3; 633.3, 950 or 1900 mg/L), calcium chloride dehydrate (CaCl2·2H2O; 147, 220 or 440 mg/L), potassium dihydrogen phosphate (KH2PO4; 57, 85 or 170 mg/L), magnesium sulfate heptahydrate (MgSO4·7H2O; 123, 185 or 370 mg/L), L-glutamine and myo-inositol (0...
June 2016: 3 Biotech
https://www.readbyqxmd.com/read/28330158/a-simple-and-efficient-agrobacterium-tumefaciens-mediated-plant-transformation-of-brassica-rapa-ssp-pekinensis
#2
Venkidasamy Baskar, Baniekal H Gangadhar, Se Won Park, Shivraj Hariram Nile
The present study aims to investigate the numerous factors influencing Agrobacterium tumefaciens-mediated genetic transformation of Chinese cabbage (Brassica rapa ssp. pekinensis). Factors affecting transformation efficiency, such as age of explants, Agrobacterium concentration, and effect of acetosyringone, pre-cultivation, infection and co-cultivation time of Agrobacterium were examined. The pre-cultured hypocotyls from young seedlings prior to exposure to Agrobacterium showed higher shoot regeneration. The plant transformation with the modest A...
June 2016: 3 Biotech
https://www.readbyqxmd.com/read/28329872/doxorubicin-has-dose-dependent-toxicity-on-mouse-ovarian-follicle-development-hormone-secretion-and-oocyte-maturation
#3
Shuo Xiao, Jiyang Zhang, Mingjun Liu, Hideyuki Iwahata, Hunter B Rogers, Teresa K Woodruff
Doxorubicin (DOX), one of the most commonly used anticancer medications, has been reported to affect fertility by damaging ovarian follicles; however, the dose-dependent toxicity of DOX on the dynamic follicle development and oocyte maturation has not been well-defined. Our objective is to determine the effects of human-relevant exposure levels of DOX on follicular functions across developmental time. In vitro cultured multilayered secondary mouse follicles were treated with DOX at 0, 2, 20, 100, and 200 nM for 24 hours, and follicle development, hormone secretion, and oocyte maturation were analyzed...
March 17, 2017: Toxicological Sciences: An Official Journal of the Society of Toxicology
https://www.readbyqxmd.com/read/28329583/dermatologic-care-of-the-transgender-patient
#4
Timothy Hermosura Almazan, Filamer D Kabigting
Literature is limited regarding the medical and cosmetic dermatologic issues pertinent to transgender patients and the reasons why 19 transgender individuals seek care from dermatologists. Clinical management of this population has historically been limited to 20 mental health providers, endocrinologists, and select surgeons with expertise in sex reassignment surgery. The impact of hormonal 21 therapy on transgender skin has been well documented in endocrinology journals, but is underrepresented in dermatology 22 literature...
October 15, 2016: Dermatology Online Journal
https://www.readbyqxmd.com/read/28328856/the-influence-of-different-growth-hormone-addition-protocols-to-poor-ovarian-responders-on-clinical-outcomes-in-controlled-ovary-stimulation-cycles-a-systematic-review-and-meta-analysis
#5
Xue-Li Li, Li Wang, Fang Lv, Xia-Man Huang, Li-Ping Wang, Yu Pan, Xiao-Mei Zhang
BACKGROUND: Growth hormone (GH) is used as an adjuvant therapy in in vitro fertilization and embryo transfer (IVF-ET) for poor ovarian responders, but findings for its effects on outcomes of IVF have been conflicting. The aim of the study was to compare IVF-ET outcomes among women with poor ovarian responders, and find which subgroup can benefit from the GH addition. METHODS: We searched the databases, using the terms "growth hormone," "GH," "IVF," "in vitro fertilization...
March 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28328135/confirmation-of-cagsss-syndrome-as-a-distinct-entity-in-a-danish-patient-with-a-novel-homozygous-mutation-in-iars2
#6
Shahida Moosa, Annette Haagerup, Pernille Axel Gregersen, Karin Kastberg Petersen, Janine Altmüller, Holger Thiele, Peter Nürnberg, Tae-Joon Cho, Ok-Hwa Kim, Gen Nishimura, Bernd Wollnik, Ida Vogel
Since the original description of the IARS2-related cataracts, growth hormone deficiency, sensory neuropathy, sensorineural hearing loss, skeletal dysplasia syndrome (CAGSSS; OMIM 616007) in an extended consanguineous family of French-Canadian descent, no further patients have been reported. IARS2 (OMIM 612801) encodes the mitochondrial isoleucine-tRNA synthetase which belongs to the class-I aminoacyl-tRNA synthetase family, and has been implicated in CAGSSS and a form of Leigh syndrome. Here, we report on a female Danish patient with a novel homozygous IARS2 mutation, p...
April 2017: American Journal of Medical Genetics. Part A
https://www.readbyqxmd.com/read/28326758/genetic-determinants-of-low-birth-weight
#7
Theresa Mallia, Alexia Grech, Abigail Hili, Jean Calleja Agius, Nikolai P Pace
Birth weight depends on the elaborate interaction between maternal and foetal genotypes, placental function, maternal nutrition and lifestyle and their effect on epigenetic regulators ofgene activity. The maternal environment in which the foetus develops is a critical factor indetermining birth weight. This review provides an overview of the effect of several geneticvariants leading to intrauterine growth restriction and low birth weight. Irrespective of theexact cause of genetic variations of foetal genes, intrauterine growth restriction is most likelydue to alteration in the growth hormone and insulin like growth factor axis with distinctchanges in the growth factors and their interaction with corresponding receptors...
March 21, 2017: Minerva Ginecologica
https://www.readbyqxmd.com/read/28326739/a-case-of-pituitary-stalk-interruption-syndrome-with-intermittent-seizures-as-the-first-presentation
#8
(no author information available yet)
Pituitary stalk interruption syndrome (PSIS) is a congenital disease with isolated growth hormone deficiency (GHD) or multiple anterior pituitary hormone deficiencies (MPHD). The typical clinical manifestations of PSIS are growth retardation, hypoglycemia or delayed pubertal development. However, few reports showed cases of PSIS were diagnosed with acute epileptic seizures accompanied by hyponatremia. Here, we report an 18-year-old female presenting with episodes of intermittent seizures for 13 years. The electrolyte examination on many occasions has shown hyponatremia, even as low as 99...
December 22, 2016: Neuro Endocrinology Letters
https://www.readbyqxmd.com/read/28326464/meningiomas-in-pregnancy-timing-of-surgery-and-clinical-outcomes-as-observed-in-104-cases-and-establishment-of-a-best-management-strategy
#9
REVIEW
Yosef Laviv, Ahmed Bayoumi, Anand Mahadevan, Brett Young, Myles Boone, Ekkehard M Kasper
BACKGROUND: There is a strong correlation between the level of circulating female sex hormones and the parturient growth of meningiomas. As a result, rapid changes in meningioma size occur during pregnancy, putting both the mother and fetus at risk. Large, symptomatic meningiomas require surgical resection, regardless of the status of pregnancy. However, the preferred timing of such complex intervention is a matter of debate. The rarity of this clinical scenario and the absence of prospective trials make it difficult to reach evidence-based conclusions...
March 22, 2017: Acta Neurochirurgica
https://www.readbyqxmd.com/read/28326345/methionine-restriction-alters-bone-morphology-and-affects-osteoblast-differentiation
#10
Amadou Ouattara, Diana Cooke, Raj Gopalakrishnan, Tsang-Hai Huang, Gene P Ables
Methionine restriction (MR) extends the lifespan of a wide variety of species, including rodents, drosophila, nematodes, and yeasts. MR has also been demonstrated to affect the overall growth of mice and rats. The objective of this study was to evaluate the effect of MR on bone structure in young and aged male and female C57BL/6J mice. This study indicated that MR affected the growth rates of males and young females, but not aged females. MR reduced volumetric bone mass density (vBMD) and bone mineral content (BMC), while bone microarchitecture parameters were decreased in males and young females, but not in aged females compared to control-fed (CF) mice...
December 2016: Bone Reports
https://www.readbyqxmd.com/read/28325825/very-long-term-sequelae-of-craniopharyngioma
#11
Mark Wijnen, Marry M van den Heuvel-Eibrink, Joseph A M J L Janssen, Coriene E Catsman-Berrevoets, Erna M C Michiels, Marie-Lise C van Veelen-Vincent, Alof H G Dallenga, Jan H van den Berge, Carolien M van Rij, A J Van der Lely, Sebastian J C M M Neggers
OBJECTIVE: Studies investigating long-term health conditions in patients with craniopharyngioma are limited by short follow-up durations and do generally not compare long-term health effects according to initial craniopharyngioma treatment approach. In addition, studies comparing long-term health conditions between patients with childhood- and adult-onset craniopharyngioma report conflicting results. The objective of this study was to analyse a full spectrum of long-term health effects in patients with craniopharyngioma according to initial treatment approach and age group at craniopharyngioma presentation...
March 21, 2017: European Journal of Endocrinology
https://www.readbyqxmd.com/read/28325747/brief-fixation-enables-same-day-breast-cancer-diagnosis-with-reliable-assessment-of-hormone-receptors-e-cadherin-and-her2-neu
#12
Altuna Halilovic, Joris Bulte, Yvonne Jacobs, Hanneke Braam, Patricia van Cleef, Margrethe Schlooz-Vries, Annelies Werner, Oliver Boelens, Iris Nagtegaal, Hans de Wilt, Peter Bult
AIMS: Preoperative core needle biopsy (CNB) is commonly used to confirm the diagnosis of breast cancer. For treatment purposes and for determining histological type, especially in case of neoadjuvant therapy, oestrogen receptor (ER), progesterone receptor (PR), human epidermal growth factor receptor 2 (HER2) status and E-cadherin assessments are crucial. Considering the increasing demand for same-day diagnosis of breast lesions, an accelerated method of CNB processing was developed, in which the tissue fixation time is radically reduced...
March 21, 2017: Journal of Clinical Pathology
https://www.readbyqxmd.com/read/28325216/an-update-on-src-family-of-nonreceptor-tyrosine-kinases-biology
#13
J Espada, J Martín-Pérez
The members of the Src family of nonreceptor tyrosine kinases (SFKs) are implicated in multiple signaling processes that regulate key cellular functions, including proliferation, migration, differentiation, and survival. SFKs are activated by a large number of receptors for growth factors, cytokines, steroid hormones, G protein-coupled receptors, and also by adhesion proteins and other signaling partners. Through their common modular kinase an adapter protein domains, SFKs critically contribute to diversify different signal inputs, weaving a complex and dynamic network of cellular responses...
2017: International Review of Cell and Molecular Biology
https://www.readbyqxmd.com/read/28324173/effect-of-oaz1-overexpression-on-goose-ovarian-granulosa-cells
#14
Bo Kang, Dongmei Jiang, Hui He, Rong Ma, Ziyu Chen, Zhixin Yi
Ornithine decarboxylase antizyme 1 (OAZ1) regulates both polyamine biosynthesis and transport and acts as a tumor suppressor because of its functions in the regulation of cell proliferation, apoptosis and growth. However, the roles of OAZ1 in the regulation of polyamine metabolism, cell proliferation, apoptosis and hormone receptor expression in granulosa cells (GCs) from geese have not been determined. To define the roles of OAZ1 in primary GCs, we constructed and transfected an Oaz1 overexpression vector with a thymidine deletion into primary GCs...
March 21, 2017: Amino Acids
https://www.readbyqxmd.com/read/28324125/exercise-and-cancer-from-healthy-to-therapeutic
#15
REVIEW
Manja Idorn, Per Thor Straten
Exercise improves functional capacity and patient-reported outcomes across a range of cancer diagnoses. The mechanisms behind this protection have been largely unknown, but exercise-mediated changes in body composition, sex hormone levels, systemic inflammation, and immune cell function have been suggested to play a role. We recently demonstrated that voluntary exercise leads to an influx of immune cells in tumors, and a more than 60% reduction in tumor incidence and growth across several mouse models. Given the common mechanisms of immune cell mobilization in mouse and man during exercise, we hypothesize that this link between exercise and the immune system can be exploited in cancer therapy in particular in combination with immunotherapy...
March 21, 2017: Cancer Immunology, Immunotherapy: CII
https://www.readbyqxmd.com/read/28324051/androgen-stimulates-growth-of-mouse-preantral-follicles-in-vitro-interaction-with-follicle-stimulating-hormone-and-with-growth-factors-of-the-tgf%C3%AE-superfamily
#16
Mhairi Laird, Kacie Thomson, Mark Fenwick, Jocelyn Mora, Stephen Franks, Kate Hardy
Androgens are essential for the normal function of mature antral follicles but also have a role in the early stages of follicle development. Polycystic ovary syndrome (PCOS), the commonest cause of anovulatory infertility, is characterized by androgen excess and aberrant follicle development that includes accelerated early follicle growth. We have examined the effects of testosterone and dihydrotestosterone (DHT) on development of isolated mouse preantral follicles in culture with the specific aims of investigating interaction with FSH, the steroidogenic pathway and with growth factors of the TGFβ superfamily that are known to have a role in early follicle development...
January 24, 2017: Endocrinology
https://www.readbyqxmd.com/read/28324032/risk-of-diabetes-treated-in-early-adulthood-following-growth-hormone-treatment-for-short-stature-in-childhood
#17
Amélie Poidvin, Alain Weill, Emmanuel Ecosse, Joel Coste, Jean-Claude Carel
Context.: Growth hormone (GH) is known to be diabetogenic, but the risk of diabetes in individuals treated with GH in childhood has been little evaluated and conflicting results have been obtained. Objective.: To investigate the prevalence of diabetes and gestational diabetes in a population-based cohort of French patients treated with GH for short stature in childhood. Design, Setting and Participants.: Population-based cohort of 5100 children with idiopathic isolated GH deficiency, idiopathic short stature, or short stature in children born short for gestational age who started GH treatment between 1985 and 1996...
January 12, 2017: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28324024/thyroid-hormone-receptor-%C3%AE-controls-developmental-timing-and-regulates-the-rate-and-coordination-of-tissue-specific-metamorphosis-in-xenopus-tropicalis
#18
Luan Wen, Yuki Shibata, Dan Su, Liezhen Fu, Nga Luu, Yun-Bo Shi
Thyroid hormone (T3) receptor (TR) mediates the effects of T3 on organ metabolism and animal development. There are two TR genes, TRα and TRβ, in all vertebrates. During animal development, TRα expression is activated earlier than zygotic T3 synthesis and secretion into the plasma, implicating a developmental role of TRα both in the presence and absence of T3. Using T3-dependend amphibian metamorphosis as a model, we have previously proposed a dual functional model for TRs, in particular TRα, during development...
March 14, 2017: Endocrinology
https://www.readbyqxmd.com/read/28324019/no-mediated-regulation-of-glut-by-t3-and-fsh-in-rat-granulosa-cells
#19
Ye Tian, Yu Ding, Juan Liu, Dai Heng, Kaili Xu, Wenbo Liu, Cheng Zhang
Thyroid hormones (THs) are important for normal reproductive function. Although 3,5,3'-triiodothyronine (T3) enhances follicle-stimulating hormone (FSH)-induced preantral follicle growth and granulosa cells development in vitro, little is known about the molecular mechanisms regulating ovarian development via glucose. In this study, we investigated whether and how T3 combines with FSH to regulate glucose transporter protein (GLUT) expression and glucose uptake in granulosa cells. Here, we present evidence that T3 and FSH co-treatment significantly increased GLUT-1/GLUT-4 expression, and translocation in cells, as well as glucose uptake...
March 17, 2017: Endocrinology
https://www.readbyqxmd.com/read/28324014/variation-in-the-insulin-like-growth-factor-1-gene-in-primates
#20
Peter Rotwein
Insulin-like growth factor 1 (IGF1) is a multifunctional peptide that is involved in a wide range of physiological and patho-physiological processes in many animal species, ranging from somatic growth in children to metabolism, and tissue regeneration and repair in adults. The IGF1 gene is under multifactorial regulation in the few species in which it has been studied, with major control being exerted by growth hormone (GH) through a gene expression pathway involving inducible binding of the STAT5b transcription factor to dispersed enhancer elements...
January 18, 2017: Endocrinology
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