Your browser doesn't support javascript.
loading
Show: 20 | 50 | 100
Results 1 - 3 de 3
Filter
Add more filters










Database
Publication year range
1.
J Neuroendocrinol ; 30(4): e12579, 2018 04.
Article in English | MEDLINE | ID: mdl-29411913

ABSTRACT

Teneurin C-terminal associated peptide (TCAP) is an ancient paracrine signalling agent that evolved via lateral gene transfer from prokaryotes into an early metazoan ancestor. Although it bears structural similarity to corticotrophin-releasing hormone (CRH), it inhibits the in vivo actions of CRH. The TCAPs are highly expressed in neurones, where they induce rapid cytoskeletal rearrangement and are neuroprotective. Because these processes are highly energy-dependent, this suggests that TCAP has the potential to regulate glucose uptake because glucose is the primary energy substrate in brain, and neurones require a steady supply to meet the high metabolic demands of neuronal communication. Therefore, the objective of the present study was to assess the effect of TCAP-mediated glucose uptake in the brain and in neuronal cell models. TCAP-mediated 18 F-deoxyglucose (FDG) uptake into brain tissue was assessed in male wild-type Wistar rats by functional positron emission tomography. TCAP-1 increased FDG uptake by over 40% into cortical regions of the brain, demonstrating that TCAP-1 can significantly enhance glucose supply. Importantly, a single nanomolar injection of TCAP-1 increased brain glucose after 3 days and decreased blood glucose after 1 week. This is corroborated by a decreased serum concentration of insulin and an increased serum concentration of glucagon. In immortalised hypothalamic neurones, TCAP-1 increased ATP production and enhanced glucose uptake by increasing glucose transporter recruitment to the plasma membrane likely via AKT and mitogen-activated protein kinase/ERK phosphorylation events. Taken together, these data demonstrate that TCAP-1 increases glucose metabolism in neurones, and may represent a peptide signalling agent that regulated glucose uptake before insulin and related peptides.


Subject(s)
Brain/drug effects , Glucose/metabolism , Neurons/drug effects , Peptides/pharmacology , Animals , Biological Transport/drug effects , Blood Glucose , Brain/diagnostic imaging , Brain/metabolism , Cell Line , Functional Neuroimaging , Glucagon/blood , Hypothalamus/cytology , Hypothalamus/drug effects , Hypothalamus/metabolism , Insulin/blood , Neurons/cytology , Neurons/metabolism , Phosphorylation/drug effects , Positron-Emission Tomography , Rats , Rats, Wistar , Signal Transduction/drug effects
2.
Biomed Tech (Berl) ; 47 Suppl 1 Pt 2: 970-2, 2002.
Article in German | MEDLINE | ID: mdl-12465359

ABSTRACT

@Home is a robust platform for real-time remote monitoring of patients at their home by doctors at the hospital. Health monitoring sensors, which have the capability to measure quick and easy vital parameters such as blood pressure, pulse rate, temperature, oxygen saturation (SpO2), as well as ECG 12 leads are used. Additionally, an advantage of the platform is that all the sensors are wearable and the patient is able to walk around indoors or outdoors. Moreover, the sensors are able to convey the recorded data over Bluetooth, a short-range wireless communication, to any Bluetooth enabled device such as Desktop computer or a Pocket PC.


Subject(s)
Computer Communication Networks/instrumentation , Home Care Services, Hospital-Based , Monitoring, Physiologic/instrumentation , Radio/instrumentation , Telemedicine/instrumentation , Computers, Handheld , Germany , Humans , Medication Systems , User-Computer Interface
3.
Minerva Med ; 86(4): 149-57, 1995 Apr.
Article in Italian | MEDLINE | ID: mdl-7623971

ABSTRACT

The authors reviewed literature data regarding risk factors of cancer in order to produce a software that could identify asymptomatic subjects at "neoplastic risk" by means of the analysis of the relative risk (RR) of each factor of his/her life-style. More in detail, the relationship between diet and cancer, tobacco use, alcohol consumption, sexual behaviour, parity and other obstetric-gynecologic aspects, medications, occupational hazards, environmental pollution and genetic susceptibility were reviewed. A complex multi-parametric evaluation system was realized to calculate risk of cancers through computerized elaboration. The program operates on anamnestic, objective and instrumental data derived from a clinical data-base.


Subject(s)
Environmental Monitoring/methods , Neoplasms/prevention & control , Software , Environmental Monitoring/statistics & numerical data , Humans , Life Style , Neoplasms/etiology , Neoplasms/mortality , Risk Factors
SELECTION OF CITATIONS
SEARCH DETAIL
...