Evidence map›Paper›PMID 31919769›Full record

ArticleEndocrine2020

Low prolactin levels are associated with visceral adipocyte hypertrophy and insulin resistance in humans.

Antonio J Ponce, Tomás Galván-Salas, Ricardo M Lerma-Alvarado, Xarubet Ruiz-Herrera, Tomás Hernández-Cortés, Rodrigo Valencia-Jiménez, Laura E Cárdenas-Rodríguez, Gonzalo Martínez de la Escalera, Carmen Clapp, Yazmín Macotela

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Article in Endocrine, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 37 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
37citing papers in PubMed, 3 pooled it
–field-weighted citation impact
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

37 citing papers in PubMed, 3 syntheses or guidelines pooled it.

  1. The relationship between low prolactin and type 2 diabetes.Reviews in endocrine & metabolic disorders · 2024
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  16. Cardiometabolic effects of hypoprolactinemia.Reviews in endocrine & metabolic disorders · 2024
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  18. The molecular basis of hypoprolactinaemia.Reviews in endocrine & metabolic disorders · 2024
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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.

Antonio J PonceInstituto de Neurobiología, Universidad Nacional Autónoma de México (UNAM), Campus UNAM-Juriquilla, 76230, Querétaro, México.
Tomás Galván-SalasInstituto de Neurobiología, Universidad Nacional Autónoma de México (UNAM), Campus UNAM-Juriquilla, 76230, Querétaro, México.
Ricardo M Lerma-AlvaradoHospital General de Querétaro, Servicio de Cirugía General, SESEQ, 76170, Querétaro, México.
Xarubet Ruiz-HerreraInstituto de Neurobiología, Universidad Nacional Autónoma de México (UNAM), Campus UNAM-Juriquilla, 76230, Querétaro, México.
Tomás Hernández-CortésHospital General de Querétaro, Servicio de Cirugía General, SESEQ, 76170, Querétaro, México.
Rodrigo Valencia-JiménezHospital General de Querétaro, Servicio de Cirugía General, SESEQ, 76170, Querétaro, México.
Laura E Cárdenas-RodríguezHospital General de Querétaro, Centro Estatal de Diagnóstico Especializado, SESEQ, 76170, Querétaro, México.
Gonzalo Martínez de la EscaleraInstituto de Neurobiología, Universidad Nacional Autónoma de México (UNAM), Campus UNAM-Juriquilla, 76230, Querétaro, México.
Carmen ClappInstituto de Neurobiología, Universidad Nacional Autónoma de México (UNAM), Campus UNAM-Juriquilla, 76230, Querétaro, México.
Yazmín MacotelaInstituto de Neurobiología, Universidad Nacional Autónoma de México (UNAM), Campus UNAM-Juriquilla, 76230, Querétaro, México. macotelag@unam.mx.ORCID http://orcid.org/0000-0002-3789-527X

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeLow prolactin (PRL) serum levels are associated with glucose intolerance and type 2 diabetes in adults, and with metabolic syndrome and obesity in children. In obese rodents, PRL treatment promotes insulin sensitivity by maintaining adipose tissue fitness, and lack of PRL signaling exacerbates obesity-derived metabolic alterations. Since adipose tissue dysfunction is a key factor triggering metabolic alterations, we evaluated whether PRL serum levels are associated with adipocyte hypertrophy (a marker of adipose tissue dysfunction), insulin resistance, and metabolic syndrome in lean, overweight, and obese adult men and women.

methodsSamples of serum and adipose tissue from 40 subjects were obtained to evaluate insulin resistance index (homeostasis model assessment of insulin resistance (HOMA-IR)), signs of metabolic syndrome (glucose levels, high-density lipoproteins, triglycerides, blood pressure, and waist circumference), as well as adipocyte size and gene expression in fat.

resultsLower PRL serum levels are associated with adipocyte hypertrophy, in visceral but not in subcutaneous fat, and with a higher HOMA-IR. Furthermore, low systemic PRL levels together with high waist circumference predict an elevated HOMA-IR whereas low serum PRL values in combination with high blood glucose predicts visceral adipocyte hypertrophy. In agreement, visceral fat from insulin resistant subjects shows reduced expression of prolactin receptor. However, there is no association between PRL levels and obesity or signs of metabolic syndrome.

conclusionsOur results support that low levels of PRL are markers of visceral fat dysfunction and insulin resistance, and suggest the potential therapeutic value of medications elevating PRL levels to help maintain metabolic homeostasis.

Indexed as

Diabetes Mellitus, Type 2Insulin ResistancePediatric ObesityAdipocytesAdultBody Mass IndexHumansHypertrophyInsulinProlactinInsulinProlactinAdipocyteAdipose tissueInsulin resistanceProlactin

Identifiers

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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.