Unpolished thai purple sticky rice (variety Luem Phua) aqueous extract enhancing spatial memory in mice

Planta Medica ◽  
2012 ◽  
Vol 78 (11) ◽  
Author(s):  
J Sattayasai ◽  
P Puapairoj ◽  
T Arkaravichien ◽  
S Simasathiansophon ◽  
A Na Lampang Noenplab
Keyword(s):  
Spatial Memory ◽  
Aqueous Extract ◽  
Rice Variety

scholarly journals Pengaruh Ekstrak Air Rumput Teki (Cyperus rotundus) Terhadap Pertumbuhan dan Kandungan Klorofil Padi Gogo Varietas Inpago 8

2020 ◽  
Vol 18 (3) ◽  
pp. 207
Author(s):  
Mia A. Agustin ◽  
Zulkifli Zulkifli ◽  
Tundjung T. Handayani ◽  
Martha L. Lande
Keyword(s):  
Water Content ◽  
Chlorophyll Content ◽  
Aqueous Extract ◽  
Rice Variety ◽  
Dry Weight ◽  
Shoot Length ◽  
Cyperus Rotundus ◽  
Fresh Weight ◽  
Purple Nutsedge ◽  
Levene Test

The purpose of this research is to know whether the aqueous extract of purple nutsedge(Cyperus rotundus) have an effect on the growth and chlorophyll content of upland riceseedling of Inpago 8 varieties. This research was conducted at Botanical Laboratory ofBiology Department Faculty of Mathematics and the Natural Sciences University ofLampung from September to October 2017. The experiments were carried out in a completerandomized design with the main factors being aqueous extract of purple nutsedge with 5 level : 0% v / v (control), 5% v / v, 10% v / v, 15% v / v, and 20%v/v. Parameters measuredwere shoot length, fresh weight, dry weight, relative water content, and total chlorophyllcontent of rice seedling. Homogeneity of variance was determined by the Levene test at 5%significant level. Analysis of variance and Tukey HSD test is done at 5% significant level.The results showed that the concentration of extract correlated quadratic with shoot lengthwhere the maximum shoot length was 3.9 cm at 10% extract concentration. Fresh weight andrelative water content maximum were 73.21 mg and 76% respectively at concentrations of14% and 10%. The minimum total chlorophyll content was 0.47 mg / g tissue at aconcentration of 11%. There was no significant effect on the dry weight of the seedling.From the results of the study, it was concluded that the extract of purple nutsedge at aconcentration below 14% was a growth stimulator, but it was an inhibitor of chlorophyllbiosynthesis.Keyword: Chlorophyll, Growth, Upland rice variety Inpago 8, Purple nutsedge

scholarly journals Effects of Ficus umbellata (Moraceae) Aqueous Extract and 7-Methoxycoumarin on Scopolamine-Induced Spatial Memory Impairment in Ovariectomized Wistar Rats

2018 ◽  
Vol 2018 ◽  
pp. 1-14 ◽  
Author(s):  
Stéphane Zingue ◽  
Harquin Simplice Foyet ◽  
Sefirin Djiogue ◽  
Yannick Ezo’o Ezo’o ◽  
Hervé Hervé Ngatanko Abaïssou ◽  
...  
Keyword(s):  
Spatial Memory ◽  
Aqueous Extract ◽  
Memory Impairment ◽  
Wistar Rats ◽  
Reference Memory ◽  
Ovariectomized Rats ◽  
Estradiol Valerate ◽  
Memory Errors ◽  
Neuroprotective Effects ◽  
Before And After

The present work was undertaken to evaluate the ability of F. umbellata aqueous extract and its major component 7-methoxycoumarin (MC) to improve scopolamine-induced spatial memory impairment in ovariectomized Wistar rats. For this to be done, 10 sham-operated and 30 postmenopausal-like rats were randomly distributed in eight groups (n=5) and treated with distilled water (2 mL/250 g), estradiol valerate (1 mg/kg BW), piracetam (1.5 mg/kg BW), F. umbellata aqueous extract (50 and 200 mg/kg BW), or MC (1 mg/kg BW) for 21 consecutive days. Before and after the memory impairment with scopolamine (2 mg/kg BW), animals underwent behavioral evaluations on Y- and radial mazes. As results, age and ovariectomy did not induce significant changes in the reference memory errors. While age decreased working memory errors, ovariectomy increased it. The MC as well as F. umbellata extract significantly increased (p<0.01) the percentage of spontaneous alternation and decreased (p<0.001) working and spatial reference memory errors and anxiety parameters (rearing and grooming) in ovariectomized rats. MC significantly reduced (p<0.05) the MDA level, but resulted in an increase in GSH level in brain homogenates. These results suggest that MC is endowed with neuroprotective effects and could account for the neuroprotective effects of F. umbellata in rats.

scholarly journals The Effect of Saffron Aqueous Extract and Crocin on PTSD Rat Models: The Focus on Learning and Spatial Memory

2018 ◽  
Vol 26 (119) ◽  
pp. 34-42
Author(s):  
Sara Asalgoo ◽  
Gila Pirzad Jahromi ◽  
Boshra Hatef ◽  
Hedayat Sahraei ◽  
◽  
...  
Keyword(s):  
Spatial Memory ◽  
Aqueous Extract ◽  
Rat Models

Unpolished thai purple sticky rice (variety Luem Phua) aqueous extract antagonizing scopolamine-induced dementia in mice

Planta Medica ◽  
2012 ◽  
Vol 78 (11) ◽  
Author(s):  
P Puapairoj ◽  
J Sattayasai ◽  
T Arkaravichien ◽  
S Simasathiansophon ◽  
A Na Lampang Noenplab
Keyword(s):  
Aqueous Extract ◽  
Rice Variety

Anxiolytic effect of unpolished thai purple sticky rice (variety Luem Phua) aqueous extract in mice

Planta Medica ◽  
2012 ◽  
Vol 78 (11) ◽  
Author(s):  
S Simasathiansophon ◽  
J Sattayasai ◽  
P Puapairoj ◽  
T Arkaravichien ◽  
A Na Lampang Noenplab
Keyword(s):  
Aqueous Extract ◽  
Rice Variety ◽  
Anxiolytic Effect

Wechsler Memory Scale, Rivermead Behavioral Memory Test, and Everyday Memory Questionnaire in Healthy Adults and Alzheimer Patients

2002 ◽  
Vol 18 (1) ◽  
pp. 63-77 ◽  
Author(s):  
Anastasia Efklides ◽  
Efterpi Yiultsi ◽  
Theopisti Kangellidou ◽  
Fotini Kounti ◽  
Fotini Dina ◽  
...  
Keyword(s):  
Spatial Memory ◽  
Semantic Memory ◽  
Memory Test ◽  
Healthy Adults ◽  
Gender Effects ◽  
Everyday Memory ◽  
Wechsler Memory Scale ◽  
Everyday Memory Questionnaire ◽  
Behavioral Memory ◽  
Memory Questionnaire

Summary: The Wechsler Memory Scale (WMS) is a laboratory-based memory test that has been criticized for its lack of ecological validity and for not testing long-term memory. A more recent memory test, which aims at testing everyday memory, is the Rivermead Behavioral Memory Test (RBMT); it tests prospective memory and other forms of memory not tapped by WMS. However, even this test does not capture all aspects of everyday memory problems often reported by adults. These problems are the object of the Everyday Memory Questionnaire (EMQ). This study aimed at identifying the relationships between these three memory tests. The differential effect of Alzheimer's disease (AD) on the above relationships was also studied. The sample consisted of 233 healthy adults (20 to 75+ years of age) and 39 AD patients (50 to 75 years of age). Confirmatory factor analysis revealed the following latent factors: Verbal Memory, Visual Reconstruction, Orientation, Message (action embedded in spatial context), Visual Recognition, Spatial Memory, New Learning/Association Forming, Prospective/Episodic Memory, and Metamemory. These first-order factors were further explained by two second-order factors: Semantic Memory and Coordination of Semantic and Visuo-Spatial Memory. This basic structure was preserved in the sample of AD patients, although AD patients performed less well on the WMS and the RBMT. Some interesting findings regarding semantic memory, face recognition, and metamemory in AD patients are also reported. Age, education, but no gender effects on memory performance were also detected.

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