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The aim was to investigate metabolic response in muscle during submaximal treadmill exercise to fatigue, with a special emphasis on adenine nucleotide degradation products such as inosine monophosphate (IMP) in muscle and hypoxanthine, xanthine and uric acid in plasma. Five Standardbred trotters
BACKGROUND
Nicotinamide adenine dinucleotide (NADH) may be depleted in chronic fatigue syndrome (SFC). The purpose of the study was to evaluate the efficacy of supplementation with NADH in these patients.
METHODS
A double blind, placebo controlled, 3 month long clinical trial was conducted. The
OBJECTIVE
To compare effectiveness of oral therapy with reduced nicotinamide adenine dinucleotide (NADH) to conventional modalities of treatment in patients with chronic fatigue syndrome (CFS).
BACKGROUND
CFS is a potentially disabling condition of unknown etiology. Although its clinical
Chronic Fatigue Syndrome (CFS) is a complex condition, characterized by severe disabling fatigue with no known cause, no established diagnostic tests, and no universally effective treatment. Several studies have proposed symptomatic treatment with coenzyme Q10 (CoQ10) and nicotinamide adenine
OBJECTIVE: To explore the possible mechanisms for the occurrence of diaphragm fatigue induced by diaphragm pacing. METHODS: The phrenic nerve of 8 dogs were exposed and subjected to stimulation with electric pulses emitted by a diaphragm pacemaker to induce diaphragm fatigue models, and the contents
BACKGROUND
Chronic fatigue syndrome (CFS) affects between 0.006% and 3% of the population depending on the criteria of definition used, with women being at higher risk than men.
METHODS
We conducted a systematic review and aimed to answer the following clinical question: What are the effects of
BACKGROUND
Chronic fatigue syndrome (CFS) affects between 0.006% and 3% of the population depending on the criteria of definition used, with women being at higher risk than men.
METHODS
We conducted a systematic review and aimed to answer the following clinical question: What are the effects of
Effects of liposome-encapsulated hemoglobin with high O2 -affinity (h-LEH), an artificial O2 carrier on skeletal muscle, were studied by in situ fatigue-resistance test in fast-type Plantaris (PLT) and slow-type Soleus (SOL) muscles with or without ischemia in the rat. The
The aim was to study metabolic response and locomotion pattern in Standardbred trotters during incremental treadmill exercise performed by increasing speed by 1 m/s in 1 min steps (start 7 m/s) until the onset of fatigue. The test protocol included determination of oxygen uptake, heart rate (HR),
Low-frequency fatigue was investigated in nine female and one male adult pigtail monkeys (Macaca nemestrina) with a mean weight of 5.3 kg (range 4.3 to 6.5 kg). After sedation and anesthesia, silver electrodes were inserted into the anterior and posterior parts of the right masseter muscle. The
The predominant route for adenine nucleotide catabolism in skeletal muscle is deamination of AMP to inosine monophosphate (IMP) and ammonia (NH3). Deamination of AMP is enhanced during exercise when the capacity to rephosphorylate ADP is impaired. Thus, in human muscle the formation of IMP (NH3)
The aim of this study was to assess the effects of nicotinamide adenine dinucleotide hydride (NADH) on maximal oxygen uptake (VO2max), maximal anaerobic running time, and mental performance. Eight men were exposed to a supplement treatment (30 mg NADH as ENACHI tablets per day) and to a placebo
Substrate- and co-factor-dependent kinetics of AMP deaminase were studied in normal and fatigued gastrocnemius muscles of frog. Normal muscle enzyme showed greater enzyme co-factor affinity than enzyme-substrate affinity as evinced by low Kp values. Fatigue phenomenon was found to decrease the
Two patients with muscle phosphorylase deficiency [McArdle's disease (McA)] were studied during bicycle exercise at 40 (n = 2) and 60 W (n = 1). Peak heart rate was 170 and 162 beats/min, corresponding to approximately 90% of estimated maximal heart rate. Muscle samples were taken at rest and
A broadly held opinion is that fatigue is not due to an insufficient supply of ATP to the energy consuming mechanisms because tissue [ATP] always remains at least one order of magnitude higher than Km for ATP of any ATPase. In general these findings also suggest that ATP consumption is well balanced