Evidence map›Paper›PMID 20359372›Full record

ArticleReproductive biology and endocrinology : RB&E2010

The effect of calcium phosphate nanoparticles on hormone production and apoptosis in human granulosa cells.

Xiaohui Liu, Dingxia Qin, Yugui Cui, Liang Chen, Hao Li, Zhen Chen, Li Gao, Ying Li, Jiayin Liu

Open access · goldAbstract read
In one paragraph

Article in Reproductive biology and endocrinology : RB&E, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
1.7field-weighted citation impact, top 15% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

12 citing papers in PubMed, 50 citations in OpenAlex.

  1. Review
  2. Article
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  5. Article
  6. Review
  7. Article
  8. Review
  9. Article
  10. The effects of nanomaterials as endocrine disruptors.International journal of molecular sciences · 2013
    Review
  11. Article
  12. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

9 authors at 3 institutions in 2 countries.

Xiaohui LiuCenter of Clinical Reproductive Medicine, First Affiliated Hospital, Jiangsu Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing 210029, China.
Dingxia Qin
Yugui Cui
Liang Chen
Hao Li
Zhen Chen
Li Gao
Ying Li
Jiayin Liu
Nanjing Medical University · CNUniversity of Missouri · USJiangsu Provincial Family Planning Institute of Science and Technology · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesAlthough many nanomaterials are being used in academia, industry and daily life, there is little understanding about the effects of nanoparticles on the reproductive health of vertebral animals, including human beings. An experimental study was therefore performed here to explore the effect of calcium phosphate nanoparticles on both steroid hormone production and apoptosis in human ovarian granulosa cells.

methodsCalcium phosphate nanoparticles uptaking was evaluated by transmission electron microscopy (TEM). The cell cycle was assessed with propidium iodide-stained cells (distribution of cells in G0/G1, S, and G2/M phases) by flow cytometry. The pattern of cell death (necrosis and apoptosis) was analyzed by flow cytometry with annexin V-FITC/PI staining. The expression of mRNAs encoding P450scc, P450arom and StAR were determined by RT-PCR. Progesterone and estradiol levels were measured by radioimmunoassay.

resultsTEM results confirmed that calcium phosphate nanoparticles could enter into granulosa cells, and distributed in the membranate compartments, including lysosome and mitochondria and intracellular vesicles. The increased percentage of cells in S phase when cultured with nanoparticles indicated that there was an arrest at the checkpoint from phase S-to-G2/M (from 6.28 +/- 1.55% to 11.18 +/- 1.73%, p < 0.05). The increased ratio of S/(G2/M) implied the inhibition of DNA synthesis and/or impairment in the transition of the S progression stage. The apoptosis rate of normal granulosa cells was 7.83 +/- 2.67%, the apoptotic rate increased to 16.53 +/- 5.56% (P < 0.05) after the cells were treated with 100 microM calcium phosphate nanoparticles for 48 hours. Treatment with calcium phosphate nanoparticles at concentrations of 10-100 microM didn't significantly change either the progesterone or estradiol levels in culture fluid, and the expression levels of mRNAs encoding P450scc, P450arom and StAR after 48 h and 72 h period of treatment.

conclusionCalcium phosphate nanoparticles interfered with cell cycle of cultured human ovarian granulosa cells thus increasing cell apoptosis. This pilot study suggested that effects of nanoparticles on ovarian function should be extensively investigated.

Indexed as

ApoptosisAromataseCalcium PhosphatesCells, CulturedCholesterol Side-Chain Cleavage EnzymeEndocytosisFemaleGene Expression Regulation, EnzymologicGonadal Steroid HormonesGranulosa CellsHumansHydroxyapatitesMetal NanoparticlesNecrosisOrganellesPhosphoproteinsAromataseCalcium PhosphatesCholesterol Side-Chain Cleavage EnzymeGonadal Steroid HormonesHydroxyapatitesPhosphoproteinsRNA, MessengerSteroidogenic Acute Regulatory Protein

Identifiers

PMID20359372
PMCPMC2867813
OpenAlexW2106624277

What OpenQuestion holds

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LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.