Navigation Links
Vitamin D supplementation may delay precocious puberty in girls
Date:6/17/2013

SAN FRANCISCO-- Vitamin D supplementation may help delay early onset of puberty in girls, a new clinical study finds. The results were presented Monday at The Endocrine Society's 95th Annual Meeting in San Francisco.

Among girls, puberty generally begins between the ages of 10 and 14. Boys undergo these changes later, usually between 12 to 16 years of age. Precocious puberty is diagnosed in girls when sexual development begins before the age of 8; in boys, it is diagnosed when these changes occur before age 9.

Recently, medical research has linked vitamin D deficiency to a number of diseases, including cancer, obesity and autoimmune disease. Low vitamin D levels have been found in girls with precocious puberty, as well, although the exact relationship between vitamin D deficiency and early development remains unclear.

To determine how low vitamin D deficiency is related to precocious puberty, investigators in the current study compared blood levels of the vitamin between girls with early and normal development.

They found that girls with precocious puberty were significantly more likely than those with age-appropriate development to have a severe vitamin D deficiency. Among the precocious puberty group, 44 percent had a severe deficiency in vitamin D, compared to 21 percent of the group with age-appropriate physical development.

Additionally, investigators examined the activity of neurons responsible for stimulating the release of a hormone that triggers the ovulation process. Specifically, investigators used the neuron-stimulating compound called N-methyl-D-aspartate, or NMDA, to activate the neurons responsible for releasing gondadotropin-releasing hormone, or GnRH. They found that vitamin D was associated with a suppression of the NMDA-mediated neuronal activities on GnRH neurons.

"If we understand more about the action mechanism of vitamin D on GnRH neuronal activities, we can find a clue to control
'/>"/>

Contact: Jenni Glenn Gingery
jgingery@endocrine.org
301-941-0240
The Endocrine Society
Source:Eurekalert

Page: 1 2

Related biology news :

1. Clinical trial launches to see whether vitamin D helps treat multiple sclerosis
2. Vitamin D supplements may protect against viral infections during the winter
3. Vitamin D for pregnant women and babies -- how much is enough?
4. Collaborative research team identifies safe upper level for vitamin A consumption for puppies
5. Health benefits of vitamin D dependent on type taken
6. Vitamin D with calcium shown to reduce mortality in elderly
7. 15th Vitamin D Workshop begins tomorrow
8. Link between vitamin C and twins can increase seed production in crops
9. Low vitamin D levels linked to weight gain in some older women
10. Obesity plus low vitamin D may add up to a greater risk of diabetes
11. Scientists confirm existence of vitamin deserts in the ocean
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:10/15/2014)... virus is spreading rapidly and to an unexpected extent. ... the past and the virus shows a new disease ... before. For this reason, the German National Academy of ... and Engineering, and the Union of the German Academies ... the Ebola epidemic today. , In the statement the ...
(Date:10/14/2014)... Like discriminating thieves, prostate cancer tumors scavenge and hoard ... But such avarice may be a fatal weakness. ... to kill prostate cancer cells by delivering a trove ... the diseased cells brimming with the mineral, leaving non-cancer ... drugs already commercially available for other uses, could soon ...
(Date:10/14/2014)... research team has discovered a new kind of stem cell ... that lines liver blood vessels, according to a study published ... existence of such a cell type contradicts current theory on ... may hold clues to origins of, and future treatment for, ... single cell into a complex being made up of more ...
Breaking Biology News(10 mins):Academies call for consequences from the Ebola virus epidemic 2Academies call for consequences from the Ebola virus epidemic 3Academies call for consequences from the Ebola virus epidemic 4Academies call for consequences from the Ebola virus epidemic 5Prostate cancer's penchant for copper may be a fatal flaw 2Stem cell discovery challenges dogma on how fetus develops; holds insights for liver cancer and reg 2Stem cell discovery challenges dogma on how fetus develops; holds insights for liver cancer and reg 3
... scientists at the University of Minnesota Medical School and ... and made suggestions on how to advance research and ... published in the January 2008 issue of the Lancet ... , Many neurological disorders are difficult to treat because ...
... and the National Center for Ecological Analysis and Synthesis ... predict gene flow across landscapes. Their approach could give ... for wildlife corridors, which are crucial to protecting biodiversity. ... theory and ecological connectivity, said Brad McRae, head of ...
... the University of California, San Diego have discovered a ... in the gene are present in both the female ... a paper that appears online today in the journal ... consent mutation because of its unusual properties. Mutations ...
Cached Biology News:International scientists tackle obstacles to treating brain disorders 2International scientists tackle obstacles to treating brain disorders 3Model connects circuit theory to wildlife corridors 2Biologists find unusual plant gene: abstinence by mutual consent 2Biologists find unusual plant gene: abstinence by mutual consent 3
(Date:10/19/2014)... October 19, 2014 The Asian Automatic ... Asian with analysis and forecast of revenue. The Automatic ... to around $463.9 million by 2018, at a developing ... through the TOC of the Asian Automatic patient billing ... provided. This also provides a glimpse of the segmentation ...
(Date:10/19/2014)... October 19, 2014 The report "Chocolate, ... Share, Trade, Prices, Geography Trend and Forecast (2011 - ... category, and geography and studies the major market drivers, ... America, Europe, and Asia. , The global chocolate market ... $98.3 billion in 2016 at an estimated CAGR of ...
(Date:10/19/2014)... (PRWEB) October 19, 2014 The ... Defense, & Homeland Security), Technology, Payload, Type & ... and segments the global unmanned ground vehicle market ... and forecasting of market sizes. The report also ... and opportunities impacting it along with the adoption ...
(Date:10/18/2014)... The “Human Insulin Market- by Product Type, [Human ... Insulin (Rapid Acting, Long Acting, Premixed)], by Brand ... Forecast to 2018” provides a detailed overview of ... trends, and strategies impacting the global human insulin ... the revenue and share analysis. , The global ...
Breaking Biology Technology:The Asian Automatic patient billing market is estimated to grow to around $463.9 million by 2018 - New Report by MicroMarket Monitor 2The Asian Automatic patient billing market is estimated to grow to around $463.9 million by 2018 - New Report by MicroMarket Monitor 3Chocolate Market Projected To Reach $98.3 Billion by 2016 - New Report by MarketsandMarkets 2Chocolate Market Projected To Reach $98.3 Billion by 2016 - New Report by MarketsandMarkets 3Chocolate Market Projected To Reach $98.3 Billion by 2016 - New Report by MarketsandMarkets 4Unmanned Ground Vehicle (UGV) Market Estimated to Reach $8.26 Billion by 2020 - New Research Report by MarketsandMarkets 2Unmanned Ground Vehicle (UGV) Market Estimated to Reach $8.26 Billion by 2020 - New Research Report by MarketsandMarkets 3Unmanned Ground Vehicle (UGV) Market Estimated to Reach $8.26 Billion by 2020 - New Research Report by MarketsandMarkets 4Unmanned Ground Vehicle (UGV) Market Estimated to Reach $8.26 Billion by 2020 - New Research Report by MarketsandMarkets 5Medical Human Insulin Market Is Expected to Reach $42 billion by 2019 - New Research Report by MarketsandMarkets 2Medical Human Insulin Market Is Expected to Reach $42 billion by 2019 - New Research Report by MarketsandMarkets 3Medical Human Insulin Market Is Expected to Reach $42 billion by 2019 - New Research Report by MarketsandMarkets 4Medical Human Insulin Market Is Expected to Reach $42 billion by 2019 - New Research Report by MarketsandMarkets 5
... , ... , , , , ... 2100 bioanalyzer can,be used in combination with Standardized RT (StaRT)-PCR ... obtain highly reproducible, standardized gene expression,measurement with RT-PCR. The internal ...
... , , ... , , , This Application ... kit can be used to detect cell surface,and intracellular protein targets ... staining on CCRF-CEM cells and intracellular,glucocorticoid receptor (GR) staining of H4 ...
... , ... , , This Application Note describes ... be used to determine the efficiency,of transfection of mammalian cells using ... with,expression vectors encoding GFP from two different sources, and optimization,of transfection ...
Cached Biology Technology:Quantitative end-point RT-PCR gene,expression measurement using the,Agilent 2100 Bioanalyzer and,standardized RT-PCR 2Quantitative end-point RT-PCR gene,expression measurement using the,Agilent 2100 Bioanalyzer and,standardized RT-PCR 3Quantitative end-point RT-PCR gene,expression measurement using the,Agilent 2100 Bioanalyzer and,standardized RT-PCR 4Quantitative end-point RT-PCR gene,expression measurement using the,Agilent 2100 Bioanalyzer and,standardized RT-PCR 5Quantitative end-point RT-PCR gene,expression measurement using the,Agilent 2100 Bioanalyzer and,standardized RT-PCR 6Quantitative end-point RT-PCR gene,expression measurement using the,Agilent 2100 Bioanalyzer and,standardized RT-PCR 7Detection of antibody-stained cell,surface and intracellular protein targets,with the Agilent 2100 bioanalyzer 2Detection of antibody-stained cell,surface and intracellular protein targets,with the Agilent 2100 bioanalyzer 3Detection of antibody-stained cell,surface and intracellular protein targets,with the Agilent 2100 bioanalyzer 4Detection of antibody-stained cell,surface and intracellular protein targets,with the Agilent 2100 bioanalyzer 5Detection of antibody-stained cell,surface and intracellular protein targets,with the Agilent 2100 bioanalyzer 6Detection of antibody-stained cell,surface and intracellular protein targets,with the Agilent 2100 bioanalyzer 7Detection of antibody-stained cell,surface and intracellular protein targets,with the Agilent 2100 bioanalyzer 8Monitoring transfection efficiency by,green fluorescent protein (GFP) detection,with the Agilent 2100 bioanalyzer 2Monitoring transfection efficiency by,green fluorescent protein (GFP) detection,with the Agilent 2100 bioanalyzer 3Monitoring transfection efficiency by,green fluorescent protein (GFP) detection,with the Agilent 2100 bioanalyzer 4Monitoring transfection efficiency by,green fluorescent protein (GFP) detection,with the Agilent 2100 bioanalyzer 5Monitoring transfection efficiency by,green fluorescent protein (GFP) detection,with the Agilent 2100 bioanalyzer 6Monitoring transfection efficiency by,green fluorescent protein (GFP) detection,with the Agilent 2100 bioanalyzer 7
... Error-free cloning of BAC (100+kb), fosmid ... Greater insert stability than any othe BAC ... for high yields and easy recombinant DNA ... or transcription-free (pSMART VC) vectors for the ...
Anti-Goat HRP-DAB Cell & Tissue Staining Kit...
CHIMAERIC HUMAN IgA2 ANTI NP...
... Cloning Kit includes the pZErO-2 ... selection in E. coli. The ... to eliminate high background. The ... reagents you need for simple ...
Biology Products: