Evidence map›Paper›PMID 25533012›Full record

ArticleNutrients2014

Neurochemical effects of chronic administration of calcitriol in rats.

Pei Jiang, Li-Hong Zhang, Hua-Lin Cai, Huan-De Li, Yi-Ping Liu, Mi-Mi Tang, Rui-Li Dang, Wen-Ye Zhu, Ying Xue, Xin He

Open access · goldAbstract read
In one paragraph

Article in Nutrients, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 49 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
49citing papers in PubMed, 2 pooled it
4.9field-weighted citation impact, top 5% 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

49 citing papers in PubMed, 2 syntheses or guidelines pooled it, 100 citations in OpenAlex.

  1. Pooled it
  2. Vitamin D and schizophrenia: 20 years on.Molecular psychiatry · 2021
    Pooled it
  3. Trial
  4. Trial
  5. Review
  6. Article
  7. Review
  8. Review
  9. Article
  10. Role of vitamin DToxicology research · 2024
    Article
  11. Article
  12. Review
  13. Article
  14. Review
  15. Sleep Disturbances in Generalized Anxiety Disorder: The Role of Calcium Homeostasis Imbalance.International journal of environmental research and public health · 2023
    Article
  16. Article
  17. Review
  18. Review
  19. Article
  20. 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

10 authors at 3 institutions in 1 country.

Pei JiangInstitute of Clinical Pharmacy & Pharmacology, Second Xiangya Hospital, Central South University, Changsha 410011, China. jpoet89@126.com.
Li-Hong ZhangInstitute of Clinical Pharmacy & Pharmacology, Second Xiangya Hospital, Central South University, Changsha 410011, China. zhanglihong0612@163.com.
Hua-Lin CaiInstitute of Clinical Pharmacy & Pharmacology, Second Xiangya Hospital, Central South University, Changsha 410011, China. ghostspecialist@163.com.
Huan-De LiInstitute of Clinical Pharmacy & Pharmacology, Second Xiangya Hospital, Central South University, Changsha 410011, China. lihuande1953@126.com.
Yi-Ping LiuInstitute of Clinical Pharmacy & Pharmacology, Second Xiangya Hospital, Central South University, Changsha 410011, China. yipingliu1973cn@yahoo.com.cn.
Mi-Mi TangInstitute of Clinical Pharmacy & Pharmacology, Second Xiangya Hospital, Central South University, Changsha 410011, China. tangmimi1989@126.com.
Rui-Li DangInstitute of Clinical Pharmacy & Pharmacology, Second Xiangya Hospital, Central South University, Changsha 410011, China. ruilidang@gmail.com.
Wen-Ye ZhuInstitute of Clinical Pharmacy & Pharmacology, Second Xiangya Hospital, Central South University, Changsha 410011, China. zhuwenyewawbmg@126.com.
Ying XueInstitute of Clinical Pharmacy & Pharmacology, Second Xiangya Hospital, Central South University, Changsha 410011, China. xueying091@126.com.
Xin HeInstitute of Clinical Pharmacy & Pharmacology, Second Xiangya Hospital, Central South University, Changsha 410011, China. hexin526@126.com.
Second Xiangya Hospital of Central South University · CNCentral South University · CNJining First People's Hospital · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Despite accumulating data showing the various neurological actions of vitamin D (VD), its effects on brain neurochemistry are still far from fully understood. To further investigate the neurochemical influence of VD, we assessed neurotransmitter systems in the brain of rats following 6-week calcitriol (1,25-dihydroxyvitamin D) administration (50 ng/kg/day or 100 ng/kg/day). Both the two doses of calcitriol enhanced VDR protein level without affecting serum calcium and phosphate status. Rats treated with calcitriol, especially with the higher dose, exhibited elevated γ-aminobutyric acid (GABA) status. Correspondingly, the mRNA expression of glutamate decarboxylase (GAD) 67 was increased. 100 ng/kg of calcitriol administration also increased glutamate and glutamine levels in the prefrontal cortex, but did not alter glutamine synthetase (GS) expression. Additionally, calcitriol treatment promoted tyrosine hydroxylase (TH) and tryptophan hydroxylase 2 (TPH2) expression without changing dopamine and serotonin status. However, the concentrations of the metabolites of dopamine and serotonin were increased and the drug use also resulted in a significant rise of monoamine oxidase A (MAOA) expression, which might be responsible to maintain the homeostasis of dopaminergic and serotonergic neurotransmission. Collectively, the present study firstly showed the effects of calcitriol in the major neurotransmitter systems, providing new evidence for the role of VD in brain function.

Indexed as

AnimalsCalcitriolCalciumDopaminegamma-Aminobutyric AcidGlutamate-Ammonia LigaseGlutamate DecarboxylaseGlutamic AcidGlutamineHippocampusHomeostasisMaleMonoamine OxidaseNeurotransmitter AgentsPhosphorusPrefrontal CortexCalcitriolCalciumDopaminegamma-Aminobutyric AcidGlutamate-Ammonia LigaseGlutamate Decarboxylaseglutamate decarboxylase 1Glutamic AcidGlutamineMonoamine OxidaseNeurotransmitter AgentsPhosphorusReceptors, CalcitriolRNA, MessengerSerotonintph2 protein, ratTryptophan Hydroxylase

Identifiers

PMID25533012
PMCPMC4277014
OpenAlexW2010541258

What OpenQuestion holds

Textmetadata
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.