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12 Jun 2019
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TNF-α may mediate link between psychotic symptoms and malaria

03 Feb 2019
Only certain species of mosquitoes of the Anopheles genus – and only females of those species – can transmit malaria.

Tumour necrosis factor (TNF)-α plays a role in the pathogenesis of malaria and psychotic symptoms, independently, and may potentially mediate a link between the two, a recent study has shown.

The study included 1,158 adults (mean age 40.3±17.7 years; 50.6 percent female), in whom the mean log of the CD4-to-CD3 ratio was 0.18±0.04. This value was slightly elevated in patients infected with malaria, but were not significantly changed in those with any common mental disorders (CMD) or psychotic symptoms.

In addition, participants with malaria also showed elevated levels of interleukin (IL)-10 and reduced concentrations of TNF-α. Unadjusted bivariate analysis identified high vs low log10TNF-α as the only marker marginally correlated with the risk of malaria (odds ratio [OR], 0.3; 0.06–1.27; p=0.097).

In comparison, levels of IL-6, 8 and 10 were raised in participants with one or more psychotic symptoms, while concentrations of IL-1β were reduced, relative to individuals without. Participants with vs without CMD, on the other hand, showed higher levels of IL-8 and 10.

Fully-adjusted multivariate models showed that log10TNF-α was significantly associated with the risk of psychotic symptoms (adjusted OR, 1.3; 1.09–1.51; p=0.003), but not with that of CMD (adjusted OR, 2.9; 2.36–3.77; p=0.566).

“Our findings support the key role of TNF-α in the pathogenesis of both CMD and psychotic symptoms, and suggest that TNF-α may mediate the association between malaria and CMD. Further community studies should be longitudinal, use [polymerase chain reaction], measure anaemia and extend the range of immune markers used,” said researchers.

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Most Read Articles
12 Jun 2019
In patients with type 2 diabetes, obesity may be protective against vision-threatening diabetic retinopathy, a recent Korea study has shown.
2 days ago
The aromatase inhibitor anastrozole shows promise in the treatment of children with congenital adrenal hyperplasia, reducing bone age advancement without adversely affecting bone mineral density and visceral adipose tissue, as shown in a recent study.
Roshini Claire Anthony, 6 days ago

Men with metastatic hormone-sensitive prostate cancer (mHSPC) who receive testosterone suppression therapy may have a better survival outcome with the addition of enzalutamide over other non-steroidal anti-androgen (NSAA) therapies, according to the phase III ENZAMET* trial.

6 days ago
The use of opioids may have limited long-term efficacy in the management of chronic noncancer pain, reports a new study.