Related Experiment Video
Updated: Dec 10, 2025
10:56
Quantifying Infra-slow Dynamics of Spectral Power and Heart Rate in Sleeping Mice
Published on: August 2, 2017
10.4K
Polyherbal Formulation Enhancing Cerebral Slow Waves in Sleeping Rats.
Kotaro Yamashiro1, Megumi Aoki2, Nobuyoshi Matsumoto1
1Graduate School of Pharmaceutical Sciences, The University of Tokyo.
Biological & Pharmaceutical Bulletin
|September 4, 2020
Summary
This study investigated a novel polyherbal medicine
Area of Science:
- Neuroscience
- Pharmacology
- Herbal Medicine
Background:
- Polyherbal medicines, used traditionally in East Asia, lack neurophysiological investigation.
- Understanding how these complex herbal blends impact the central nervous system is crucial.
Purpose of the Study:
- To investigate the neurophysiological effects of a novel polyherbal formulation.
- To determine if this herbal medicine modulates brain activity and sleep states.
Main Methods:
- Administered a novel polyherbal formulation (linden, mulberry, lavandin, butterfly pea, tulsi) to rats.
- Simultaneously recorded electrocorticograms (ECoGs), electromyograms (EMGs), and electrocardiograms (ECGs).
- Analyzed ECoG signals in the frequency domain to assess brain oscillations during different behavioral states.
Main Results:
- The polyherbal formulation significantly reduced total sleep time in rats.
- Specific slow-frequency oscillations (0.5-3 Hz) in the somatosensory cortex (S1) were enhanced during sleep.
- These findings suggest region- and frequency-specific neurophysiological modulation by the herbal medicine.
Conclusions:
- This novel polyherbal formulation exhibits neurophysiological effects, notably altering sleep patterns and brain activity.
- The study provides evidence for the impact of complex herbal formulations on the central nervous system.
- Further research can explore the specific mechanisms and therapeutic potential of this formulation.
More Related Videos
Related Concept Videos
01:17Sedatives and Hypnotics Drugs: Miscellaneous Agents
374
Sedatives and hypnotics encompass a wide range of substances, each with its unique mechanism of action, uses, and potential adverse effects.
Melatonin congeners like ramelteon (Rozerem) and tasimelteon (Hetlioz) selectively bind to melatonin receptors (MT1 and MT2) and thus mimic the actions of melatonin, a hormone that regulates sleep-wake cycles. Tasimelteon is primarily used for non-24-hour sleep-wake disorder, common in blind patients. They are also used to treat conditions like insomnia...
Melatonin congeners like ramelteon (Rozerem) and tasimelteon (Hetlioz) selectively bind to melatonin receptors (MT1 and MT2) and thus mimic the actions of melatonin, a hormone that regulates sleep-wake cycles. Tasimelteon is primarily used for non-24-hour sleep-wake disorder, common in blind patients. They are also used to treat conditions like insomnia...
374
01:19Management of Insomnia
424
The sleep cycle, an integral part of human health, consists of several stages with distinct characteristics and functions. It begins with a transition from wakefulness to sleep, known as the light sleep phase, followed by the restorative deep sleep phase, essential for physical recovery and growth. The cycle concludes with the Rapid Eye Movement (REM) phase, characterized by high brain activity and vivid dreaming. Insomnia, a prevalent sleep disorder, involves difficulty falling asleep, staying...
424
01:23Sedatives and Hypnotics: Overview
1.1K
Sedatives are drugs that alleviate anxiety, while hypnotics induce sleep. Both classes of medication suppress neuronal activity, leading to a calming effect for sedatives and facilitating sleep for hypnotics.
Sedative-hypnotics are categorized into barbiturates, benzodiazepines (BZDs), and non-benzodiazepines or Z-drugs. These drugs work by suppressing central nervous system activity, and this suppression is dose-dependent. Older sedative medications, like barbiturates, follow a linear curve in...
Sedative-hypnotics are categorized into barbiturates, benzodiazepines (BZDs), and non-benzodiazepines or Z-drugs. These drugs work by suppressing central nervous system activity, and this suppression is dose-dependent. Older sedative medications, like barbiturates, follow a linear curve in...
1.1K
01:24Sleep-Wake Cycles
2.5K
Sleep is an essential physiological process vital to maintaining overall well-being. The reticular activating system (RAS), a network of neurons in the brainstem, regulates wakefulness and sleep. While it may seem passive, sleep consists of distinct cycles, each with its unique characteristics and functions. Two key sleep phases are non-rapid eye movement (NREM) and rapid eye movement (REM).
NREM Sleep
NREM sleep comprises four progressive stages that seamlessly merge:
NREM Sleep
NREM sleep comprises four progressive stages that seamlessly merge:
2.5K
01:22Stages of Sleep
1.1K
Sleep progresses through distinct stages, each characterized by specific brain wave patterns and physiological responses ranging from wakefulness to stages of non-rapid eye movement, known as non-REM, to rapid eye movement, referred to as REM. Understanding these stages helps in recognizing how sleep supports various bodily and cognitive functions.
Before sleep begins, in wakefulness, the brain exhibits primarily beta waves, which are high in frequency and low in amplitude, indicating alertness...
Before sleep begins, in wakefulness, the brain exhibits primarily beta waves, which are high in frequency and low in amplitude, indicating alertness...
1.1K
01:30Cognitive Enhancers: Cholinesterase Inhibitors and NMDA Receptor Antagonists
414
Cognitive enhancers, also known as "smart drugs," are substances used to enhance memory, mental alertness, and concentration. These can be natural or synthetic and improve cognition in conditions like Alzheimer's disease (AD) and other neurodegenerative diseases. Some common examples include caffeine, amphetamines, methylphenidate, modafinil, arecoline, donepezil, vortioxetine, and piracetam. These enhancers work on the principle of synaptic plasticity and altered circuit function.
414