Results 21 to 30 of about 712 (172)

Synthetic studies on polycyclic indole alkaloids [PDF]

, 2006
The first part of this work details the formal total synthesis of HKI 0231B and the first total synthesis of both demethyl HKI 0231A and demethyl HKI 0231B. The formal synthesis used TBAF as a mild reagent to construct the indole.
Wu, Tao
core   +1 more source

Special ergolines efficiently inhibit the chemokine receptor CXCR3 in blood

, 2011
The structure activity relationship of highly potent special ergolines which selectively block the chemokine receptor CXCR3 is reported. The most potent compounds showed IC50 values below 10 nM in both ligand binding and Ca2+-mobilization assays. However,
Baenteli, Rolf, Thoma, Gebhard, Zerwes, Hans-Guenter, Streiff, Markus, Lewis, Ian, Kovarik, Jiri, Jones, Darryl   +6 more
core   +2 more sources

From Ergolines to Indoles: Improved Inhibitors of the Human H3-Receptor for the Treatment of Narcolepsy

, 2014
Ergolines were recently identified as a novel class of H3-Receptor (H3R) inverse agonist. While their optimization led to drug candidates with encouraging properties for the treatment of narcolepsy, brain penetration remained low. To overcome this issue,
Zhang, Xuechun, Perrone, Mark, Wang, Chunxiu, Auberson, Yves, Liu, Yu-Chih, Shen, Xiaoxia, Bock, Mark, Yang, Charles, Wang, Tie-Lin, Lei, Lijun, Zhang, Dushan, Lagu, Bharat, Feuerbach, Dominik, Troxler, Thomas J.   +13 more
core   +1 more source

Sex differences in the prefrontal cortex and muscle oxygenation during exercise until exhaustion in endurance‐trained individuals

Experimental Physiology, EarlyView.
Abstract figure legend During cardiopulmonary exercise testing, the decline in oxygenation in the prefrontal cortex of women is striking. This crucial brain area is directly involved in planning motor tasks. The decline is particularly pronounced at higher exercise intensities, especially after reaching the respiratory compensation point or anaerobic ...
Daniel Ramos‐López, Raúl Caulier‐Cisterna, Benjamín Díaz‐Ortiz, Cristóbal Baumann‐Biancani, Kamilo Hunger‐Abbott, Matías Herrera‐Matas, Andrés Vega‐Moraga, Vitor A. Lira, Maximiliano Espinosa‐Ramírez, Karol Ramírez‐Parada, Luigi Gabrielli‐Nervi, Hugo E. Verdejo, Felipe Contreras‐Briceño   +12 more
wiley   +1 more source

Electrochemical synthesis of 2-haloergolines

, 1987
Regiosclective halogenation (chlorination, bromination, iodination) of several ergolines to the corresponding 2-halo derivatives was performed in moderate to good yields by potential controlled electrolysis at platinum in acetonitrile in the presence of ...
G. FIORI, B. DANIELI, G. PALMISANO, G. LESMA   +3 more
core   +1 more source

Postexercise muscle oxygen uptake kinetics in older breast cancer survivors and healthy individuals: Association with myosteatosis

Experimental Physiology, EarlyView.
Abstract Reduced cardiorespiratory fitness is common among breast cancer survivors and, although traditionally attributed to cardiac dysfunction, might also be related to peripheral skeletal muscle abnormalities. We examined peak and submaximal plantar‐flexion exercise and recovery kinetics for lower‐leg oxygen uptake (V̇O2${\dot V_{{{\mathrm{O}}_2}}}$)
Nathan R. Weeldreyer, Thomas J. McMurtry, Stephen J. Foulkes, Amanda Shewman, Edith Pituskin, Rachel J. Skow, Richard B. Thompson, Justin Grenier, Deirdre E. O'Neill, Robert C. Welsh, Mark J. Haykowsky, Corey R. Tomczak   +11 more
wiley   +1 more source

Identification of the individual cardiac contraction threshold during high‐frame‐rate stress echocardiography

Experimental Physiology, EarlyView.
Abstract The clinical assessment of cardiovascular function during exercise using stress echocardiography is essential for accurate cardiac diagnosis. However, normal limitations of cardiac deformation responses to increasing physical exertion remain poorly understood.
Fabian Spahiu, Max Hagemann, Michelle Ottlik, Moritz Lampkemeyer, Eric J. Stöhr   +4 more
wiley   +1 more source

Ropinirole, a Non‐Ergoline Dopamine Agonist [PDF]

CNS Drug Reviews, 2005
ABSTRACTDopamine agonists have become indispensable in the treatment of Parkinson's disease. In every‐day practice, however, the decision to select the best compound for an individual patient is rendered difficult because of the large number of substances available on the market.
Wolfgang H, Jost, Dieter, Angersbach
openaire   +2 more sources

Impact of 14 days of head‐down bed rest and an exercise countermeasure on skeletal muscle atrophy, proteome and circulatory cytokines in older adults

Experimental Physiology, EarlyView.
Abstract Prolonged bed rest and immobilization have deleterious effects on skeletal muscle mass and function, especially in older adults. These can lead to reduced physical capacity and quality of life. Previous experiments in younger individuals show that exercise can mitigate these effects, but evidence remains scarce and inconclusive in older adults.
Jean‐Christophe Lagacé, Philippe St‐Martin, Mariano Avino, Ahmed Ghachem, Guy Hajj‐Boutros, Jose A. Morais, Jamie S. McPhee, Karen Lambert, Eléonor Riesco, Isabelle J. Dionne   +9 more
wiley   +1 more source

The impact of biological sex and stroke volume constituents on heterogeneity in the Q̇$\dot{Q}$–V̇O2${{\dot{V}}_{{{{\mathrm{O}}}_2}}}$ relationship and skeletal muscle saturation during cycling

Experimental Physiology, EarlyView.
Abstract Interindividual variability in the cardiac output (Q̇$\dot{Q}$) to the rate of oxygen consumption (V̇O2${{\dot{V}}_{{{{\mathrm{O}}}_2}}}$) slope (Q̇$\dot{Q}$–V̇O2${{\dot{V}}_{{{{\mathrm{O}}}_2}}}$) in healthy males is related to stroke volume (SV); however, the impact of differences in left ventricular (LV) structure and function as well as ...
Adam N. Di Salvo, Sinan Osman, Jacob L. Schwartz, Nino Nikolovski, Robert F. Bentley   +4 more
wiley   +1 more source