Decreasing suicide mortality in Hungary – What are the main causes?

Introduction

Depression and suicidal behaviour are major public health problems everywhere but particularly in Hungary where until 2000 the suicide rate was among the highest in the world.

Objectives

To analyse the possible causes of declining national suicide rate of Hungary.

Methods

Review of the scientific literature on Hungarian suicide scene published in the last 40 years.

Results

The peak of Hungarian national suicide rate was in 1985 (46/100.000) but due to a steady and continuous, year by year decline, in 2019 it was only 16/100.000, which represents a more than 65% decrease. Rate of unrecognised/untreated mood disorders, availability of health/psychiatric care, antidepressant and lithium prescription, unemployment, smoking and alcohol consumption as well as lithium and arsenic contents of drinking water were the most investigated possible determinants of suicide mortality of the country. More widespread and effective treatment of psychiatric/mood disorder patients, decreased rate of unemployment and smoking as well as the continuously improving living standards were the most important contributors to the great decline of the national suicide rate. However, in 2020 – the first year of the COVID-19 pandemic – the national suicide rate rose by 16%, which was almost totally accounted for by the increase of suicides among males.

Conclusions

Suicidal behaviour is preventable in many cases, but as it is a complex, multicausal phenomenon, its prevention should involve several medical/psychiatric, psychosocial and community interventions.

Disclosure

No significant relationships.

Circulating endothelial progenitor cells and depression: a possible novel link between heart and soul

Although depression is known to be an independent risk factor for cardiovascular disorders, the mechanisms behind this connection are not well understood. However, the reduction in the number of endothelial progenitor cells (EPCs) in patients with cardiovascular risk factors has led us to hypothesize that depression influences the number of EPCs. EPCs labeled with CD34, CD133 and vascular endothelial growth factor receptor-2 (VEGFR2) antibodies were counted by flow cytometry in the peripheral blood (PB) of 33 patients with a current episode of major depression and of 16 control subjects. Mature (CD34+/VEGFR2+) and immature (CD133+/VEGFR2+) EPC counts were decreased in patients (vs controls; P<0.01 for both comparisons), and there was a significant inverse relationship between EPC levels and the severity of depressive symptoms (P<0.01 for both EPC phenotypes). Additionally, we assayed the plasma levels of VEGF, C-reactive protein (CRP) and tumor necrosis factor (TNF)-alpha and observed significantly elevated TNF-alpha concentrations in patients (vs controls; P<0.05) and, moreover, a significant inverse correlation between TNF-alpha and EPC levels (P<0.05). Moreover, by means of a quantitative RT-PCR approach, we measured CD34, CD133 and VEGFR2 mRNA levels of PB samples and found a net trend toward a decrease in all the investigated EPC-specific mRNA levels in patients as compared with controls. However, statistical significance was reached only for VEGFR2 and CD133 levels (P<0.01 for both markers). This is the first paper that demonstrates evidence of decreased numbers of circulating EPCs in patients with a current episode of major depression.