Microdialysis Sampling for Pharmacological Studies: HPLC and CE Analysis

2021 ◽  
pp. 383-432
Author(s):  
Susan M. Lunte ◽  
Craig E. Lunte
Keyword(s):  
Microdialysis Sampling ◽  
Pharmacological Studies

Phytochemical and pharmacological studies of Crotalaria madurensis leaves

Planta Medica ◽  
2008 ◽  
Vol 74 (09) ◽  
Author(s):  
SHM Hala ◽  
SAM Mohamed ◽  
TI Magada ◽  
SA El Batran ◽  
DE Omayma
Keyword(s):  
Pharmacological Studies

Phytochemical and pharmacological studies on commercial teas

Planta Medica ◽  
2012 ◽  
Vol 78 (11) ◽  
Author(s):  
HC Rodda ◽  
FKE Rubra ◽  
B Ramya
Keyword(s):  
Pharmacological Studies

Mechanism of the Antiplatelet Action of Dipyridamole in Whole Blood: Modulation of Adenosine Concentration and Activity

1986 ◽  
Vol 55 (01) ◽  
pp. 012-018 ◽  
Author(s):  
Paolo Gresele ◽  
Jef Arnout ◽  
Hans Deckmyn ◽  
Jos Vermylen
Keyword(s):  
Platelet Aggregation ◽  
Adenosine Receptor ◽  
Whole Blood ◽  
Blood Cells ◽  
Inhibitory Action ◽  
Phosphodiesterase Inhibitor ◽  
Inhibitory Effect ◽  
Adenosine Concentration ◽  
Pharmacological Studies

SummaryDipyridamole inhibits platelet aggregation in whole blood at lower concentrations than in plasma. The blood cells responsible for increased effectiveness in blood are the erythrocytes. Using the impedance aggregometer we have carried out a series of pharmacological studies in vitro to elucidate the mechanism of action of dipyridamole in whole blood. Adenosine deaminase, an enzyme breaking down adenosine, reverses the inhibitory action of dipyridamole. Two different adenosine receptor antagonists, 5’-deoxy-5’-methylthioadenosine and theophylline, also partially neutralize the activity of dipyridamole in blood. Enprofylline, a phosphodiesterase inhibitor with almost no adenosine receptor antagonistic properties, potentiates the inhibition of platelet aggregation by dipyridamole. An inhibitory effect similar to that of dipyridamole can be obtained combining a pure adenosine uptake inhibitor (RE 102 BS) with a pure phosphodiesterase inhibitor (MX-MB 82 or enprofylline). Mixing the blood during preincubation with dipyridamole increases the degree of inhibition. Lowering the haematocrit slightly reduces the effectiveness.Although we did not carry out direct measurements of adenosine levels, the results of our pharmacological studies clearly show that dipyridamole inhibits platelet aggregation in whole blood by blocking the reuptake of adenosine formed from precursors released by red blood cells following microtrauma. Its slight phosphodiesterase inhibitory action potentiates the effects of adenosine on platelets.

Therapy of post-stroke depression – a systematic review

2013 ◽  
Vol 10 (02) ◽  
pp. 108-129 ◽  
Author(s):  
W. Gaebel ◽  
W. Wannagat ◽  
J. Zielasek
Keyword(s):  
Systematic Review ◽  
Large Scale ◽  
Repetitive Transcranial Magnetic Stimulation ◽  
Placebo Control ◽  
Post Stroke ◽  
Pharmacological Studies ◽  
Post Stroke Depression ◽  
Control Procedures ◽  
Antidepressant Pharmacotherapy

SummaryWe performed a systematic review of randomized placebo-controlled pharmacological and non-pharmacological trials for the therapy and prevention of post-stroke depression that have been published between 1980 and 2011. We initially identified 2 260 records of which 28 studies were finally included into this review. A meta-analytic approach was hampered by considerable differences regarding the kinds of therapeutic regimens and the study durations. Modest effects favoring treatment of post-stroke depression could be found for pharmacological treatment as well as repetitive transcranial magnetic stimulation. For the prevention of post-stroke depression, antidepressant pharmacotherapy showed promising results. However, large-scale studies with better standardized study populations, optimized placebo control procedures in non-pharmacological studies, and replication in larger follow-up studies are still necessary to find the optimal therapeutic regimens to prevent and treat post-stroke depression.

Neuropharmacological Profile and Chemical Analysis of Moroccan Ormenis mixta L.

2018 ◽  
Vol 16 (S1) ◽  
pp. S55-S64
Author(s):  
G. Hajjaj ◽  
A. Bahlouli ◽  
M. Tajani ◽  
K. Alaoui ◽  
Y. Cherrah ◽  
...  
Keyword(s):  
Central Nervous System ◽  
Nervous System ◽  
Body Weight ◽  
Traditional Medicine ◽  
Behavioral Tests ◽  
Phytochemical Screening ◽  
Activity Profile ◽  
Acute Toxicity Study ◽  
Pharmacological Studies

Ormenis mixta L. is traditionally used for central nervous system (CNS)-related diseases. Its anti-stress properties have received attention in Moroccan traditional medicine and aromatherapy. However, no pharmacological studies have yet been undertaken on this plant in Morocco. The present study provides a preliminary phytochemical screening and psychopharmacological profile of the essential oil and aqueous extract from Ormenis mixta L. by using behavioral tests in vivo, at graded doses. The result of this research shows that Ormenis mixta L. was safe up to 2 g/kg b.w. (body weight) in the acute toxicity study, possesses potential psychostimulant effect, and has antianxiety and antidepressant-like activity. This activity profile of Ormenis mixta L. was similar to the typical psychostimulant, caffeine. The exact mechanism of action underlying this stimulant-like effect should be clarified with further detailed studies. These results explained the extensive use of Ormenis mixta L. as a traditional medicine in Morocco.

Phytochemistry, Pharmacological Activities, Toxicity and Clinical Application of Momordica cochinchinensis

2019 ◽  
Vol 25 (6) ◽  
pp. 715-728 ◽  
Author(s):  
Hai-Yue Lan ◽  
Bin Zhao ◽  
Yu-Li Shen ◽  
Xiao-Qin Li ◽  
Su-Juan Wang ◽  
...  
Keyword(s):  
Clinical Practice ◽  
Chinese Medicine ◽  
Traditional Chinese Medicine ◽  
Southeast Asia ◽  
Clinical Application ◽  
Chemical Constituents ◽  
Folk Medicine ◽  
Pharmacological Activities ◽  
Pharmacological Studies ◽  
Momordica Cochinchinensis

Momordica cochinchinensis (Lour.) Spreng (M. cochinchinensis) is a deciduous vine that grows in Southeast Asia. It is known as gac in Vietnam and as Red Melon in English. Gac is reputed to be extremely benificial for health and has been widely used as food and folk medicine in Southeast Asia. In China, the seed of M. cochinchinensis (Chinese name: Mu biezi) is used as traditional Chinese medicine (TCM) for the treatment of various diseases. More than 60 chemical constituents have been isolated from M. cochinchinensis. Modern pharmacological studies and clinical practice demonstrate that some chemical constituents of M. cochinchinensis possess wide pharmacological activities, such as anti-tumor, anti-oxidation, anti-inflammatory, etc. This paper reviews the phytochemistry, pharmacological activities, toxicity, and clinical application of M. cochinchinensis, aiming to bring new insights into further research and application of this ancient herb.

Ferula hermonis: A Review of Current Use and Pharmacological Studies of its Sesquiterpene Ester Ferutinin

2020 ◽  
Vol 21 (5) ◽  
pp. 499-508 ◽  
Author(s):  
Rémi Safi ◽  
Marwan El-Sabban ◽  
Fadia Najjar
Keyword(s):  
Wide Spectrum ◽  
Endemic Plant ◽  
Anti Cancer ◽  
Pharmacological Studies ◽  
Sexual Impotence ◽  
Novel Applications ◽  
Anti Fungal ◽  
Sesquiterpene Ester

Ferula hermonis Boiss, is an endemic plant of Lebanon, locally known as “shilsh Elzallouh”. It has been extensively used in the traditional medicine as an aphrodisiac and for the treatment of sexual impotence. Crude extracts and isolated compounds of ferula hermonis contain phytoestrogenic substances having a wide spectrum of in vitro and in vivo pharmacological properties including anti-osteoporosis, anti-inflammatory, anti-microbial and anti-fungal, anti-cancer and as sexual activity enhancer. The aim of this mini-review is to highlight the traditional and novel applications of this plant’s extracts and its major sesquiterpene ester, ferutinin. The phytochemical constituents and the pharmacological uses of ferula hermonis crude extract and ferutinin specifically will be discussed.

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