Evidence map›Paper›PMID 31094068›Full record

ArticleJournal of diabetes investigation2019

Clinical and enzymatic phenotypes in congenital hyperinsulinemic hypoglycemia due to glucokinase-activating mutations: A report of two cases and a brief overview of the literature.

Fan Ping, Zhixin Wang, Xinhua Xiao

Open access · goldAbstract readCase Reports
In one paragraph

Article in Journal of diabetes investigation, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
5.7field-weighted citation impact, top 3% 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

11 citing papers in PubMed, 17 citations in OpenAlex.

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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

3 authors at 2 institutions in 1 country.

Fan PingNHC Key Laboratory of Endocrinology, Department of Endocrinology, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union, Beijing, China.ORCID https://orcid.org/0000-0001-7650-6612
Zhixin WangDepartment of Endocrinology, Beijing Jishuitan Hospital, Beijing, China.ORCID https://orcid.org/0000-0003-2383-1010
Xinhua XiaoNHC Key Laboratory of Endocrinology, Department of Endocrinology, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union, Beijing, China.
Chinese Academy of Medical Sciences & Peking Union Medical College · CNPeking University · CN

Funding

National Natural Science Foundation of China 81170736
6 · The paper itself

Abstract

AIMS/

introductionThe principal aim of this study was to investigate the clinical, genetic and functional characteristics of two cases of congenital hyperinsulinism (CHI) caused by glucokinase (GCK) mutations in young patients. MATERIALS AND

methodsNovel mutations were detected by CHI next-generation sequencing, and the kinetic parameters and thermal stability of recombinant wild-type and mutant glucokinase were determined in vitro. In addition, 18 naturally occurring GCK-CHI mutations reported previously were also summarized.

resultsA de novo mutation (M197V) was found in a 17-year-old male with an epilepsy history, whereas an autosomal dominant mutation (K90R) was found in a 20-year-old female with inherited asymptomatic hypoglycemia. Kinetic analysis showed increased enzyme activity for both mutants (RAI 4.7 for M197V and 1.6 for K90R) and enhanced thermal stability for the M197V mutant. However, of all the GCK-CHI mutants, the increase in enzyme activity (RAI between 1.6 and 130) did not correlate strongly with the severity of hypoglycemia. The de novo group (7/19) showed distinctive phenotypes from the autosomal dominant group (12/19), such as a higher proportion of diazoxide unresponsiveness (28.6% vs 0%), a higher incidence of macrosomia (85.7% vs 40%) and a rarer incidence of adulthood onset (0% vs 25%).

conclusionsThe clinical phenotypes of GCK-CHIs were highly heterogeneous. We have identified two novel GCK-CHI mutations in young patients and investigated their pathogenicity by enzyme kinetic analysis, which expanded the spectrum of this rare disease.

Indexed as

MutationAdolescentAdultCongenital HyperinsulinismFemaleGerminal Center KinasesHumansHypoglycemiaMalePedigreePhenotypePrognosisYoung AdultGerminal Center KinasesMAP4K2 protein, humanEnzyme kineticsGlucokinaseHypoglycemia

Identifiers

PMID31094068
PMCPMC6825936
OpenAlexW2944978756

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Registered trials

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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.