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Media beautifies the image of coronavirus

Media beautifies the image of coronavirus

15 Settembre 2021

According to a study by the Instituto de Radio Televisión...

Scientific evidence to date on COVID-19 vaccine efficacy does not support boosters for general population, expert review concludes

Scientific evidence to date on COVID-19 vaccine efficacy does not support boosters for general population, expert review concludes

15 Settembre 2021

An expert review by an international group of scientists, including...

How plants can respond to threats

How plants can respond to threats

10 Settembre 2021

(A) Silver electrodes placed on the surface of leaf petioles...

Singapore scientists develop AI-powered system to diagnose glaucoma using eye images

Singapore scientists develop AI-powered system to diagnose glaucoma using eye images

10 Settembre 2021

Scientists from Nanyang Technological University, Singapore (NTU Singapore), in collaboration...

Have COVID-19 lockdowns affected passion and intimacy in relationships?

Have COVID-19 lockdowns affected passion and intimacy in relationships?

10 Settembre 2021

In a study of dating and married couples in India...

Research reveals the impact of nicotine-containing e-cigarettes on the body

Research reveals the impact of nicotine-containing e-cigarettes on the body

07 Settembre 2021

Using e-cigarettes containing nicotine causes an immediate increase in the...

Oncotarget: Telomere dysfunction and chromosome instability in cancer cells

Oncotarget: Telomere dysfunction and chromosome instability in cancer cells

06 Settembre 2021

These terpyridine platinum-derived G4 ligands are promising compounds for cancer...

Bisexual adults more than twice as likely to have asthma as straight adults

Bisexual adults more than twice as likely to have asthma as straight adults

06 Settembre 2021

Discrimination may lead to inflammation, increased stress hormones associated with...

Giovedì, 26 Gennaio 2017

Studiare la 'forma' del nostro cervello può fornirci sorprendenti indizi sulla nostra personalità. La scoperta, pubblicata su Social Cognitive and Affective Neuroscience, è di un gruppo di ricerca internazionale che coinvolge l’Ibfm-Cnr, l’Università di Tor Vergata e l’Università Magna Graecia

In uno studio pubblicato sulla rivista scientifica 'Social Cognitive and Affective Neuroscience', un team internazionale di ricercatori provenienti da Italia, Regno Unito e Usa (Luca Passamonti - Università di Cambridge e Istituto di bioimmagini e fisiologia molecolare del Consiglio nazionale delle ricerche Ibfm-Cnr; Nicola Toschi - Università Tor Vergata di Roma; Roberta Riccelli - Università Magna Græcia di Catanzaro; Antonio Terracciano - Università della Florida) ha analizzato più di 500 risonanze magnetiche cerebrali ottenute nell’ambito di 'Human Connectome Project', un’iniziativa statunitense di grandi dimensioni che ha l’obiettivo di mappare il funzionamento e la struttura del cervello umano. Nello specifico, i ricercatori hanno studiato le differenze anatomiche della corteccia cerebrale in più di 500 individui sani attraverso l’uso di tre indici: lo spessore, l’area ed il grado di girificazione o 'ripiegamento' corticale (in altre parole da quante 'fessure' e 'rigonfiamenti' è caratterizzata la superficie cerebrale). Il principale scopo dello studio era valutare come ognuna di queste misure, che caratterizzano la struttura delle diverse aree cerebrali, fosse collegata ai cinque principali tratti di personalità.

Pubblicato in Neuroscienze

 

 

Researchers uncover mechanism by which hypothalamic neural signaling drives hunger responses to survive starvation.

The human body responds to starving conditions, such as famine, to promote the chance of survival. It reduces energy expenditure by stopping heat production and promotes feeding behavior. These “hunger responses” are activated by the feeling of hunger in the stomach and are controlled by neuropeptide Y (NPY) signals released by neurons in the hypothalamus.

 

However, how NPY signaling in the hypothalamus elicits the hunger responses has remained unknown. Sympathetic motor neurons in the medulla oblongata are responsible for heat production by brown adipose tissue (BAT). Researchers centered at Nagoya University have now tested whether the heat-producing neurons respond to the same hypothalamic NPY signals that control hunger responses. They injected NPY into the hypothalamus of rats and tested the effect on heat production. Under normal conditions, blocking inhibitory GABAergic receptors or stimulating excitatory glutamatergic receptors in the sympathetic motor neurons induced heat production in BAT. After NPY injection, stimulating glutamatergic receptors did not produce heat, but inhibiting GABAergic receptors did. The study was recently reported in Cell Metabolism.

Pubblicato in Scienceonline

 

 

Mitochondrial dysfunction is the root cause of many diseases that are bewildering in their variety and complexity. They include rare genetic disorders in children, some forms of heart disease, and most likely many cases of Parkinson’s disease.

 

Research on mitochondria started already in the late 19th century, but there are still many unsolved issues concerning their composition, their function and their relevance to health and disease. Director Howy Jacobs and his research group at the Institute of Biotechnology are amongst many scientists worldwide who seek to answer the open questions, in their daily work. Their main aim is to understand how mitochondria interact with other cellular components to maintain physiological homeostasis, and how mitochondrial defects lead to pathological states.

Pubblicato in Scienceonline

The genomes of the two least common species of human malaria parasites are revealed today in Nature by a team of scientists from the Wellcome Trust Sanger Institute and their international collaborators. These sequences will enable improved surveillance and diagnosis of these rarer parasites that still cause more than 10 million malaria cases every year. The research has important implications for malaria eradication worldwide, and casts light on a malaria vaccine target.

Pubblicato in Scienceonline
Giovedì, 26 Gennaio 2017 00:00

DinoFest 2017

 

Saturday, January 28, 2017 -

10:00am to 5:00pm

Sunday, January 29, 2017 -

10:00am to 5:00pm

The Natural History Museum of Utah | Rio Tinto Center | 301 Wakara Way, Salt Lake City

Pubblicato in Scienceonline

 

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