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Metabolic rates elevation

Rhinomugil corsula 100 Metabolic rate elevated after 3 h 37... [Pg.1213]

Users experienced elevated body temperatures and perspiration even while sitting around. Simply stated, metabolic rates elevate 100-200% in only a few hours. Sounds great, but DNP can be deadly. Since increased energy is dissipated as body heat, too high of a dosage of DNP for to long of a period can actually COOK ORGANS . No joke, I mean medium well done. [Pg.148]

Except as an index of respiration, carbon dioxide is seldom considered in fermentations but plays important roles. Its participation in carbonate equilibria affects pH removal of carbon dioxide by photosynthesis can force the pH above 10 in dense, well-illuminated algal cultures. Several biochemical reactions involve carbon dioxide, so their kinetics and equilibrium concentrations are dependent on gas concentrations, and metabolic rates of associated reactions may also change. Attempts to increase oxygen transfer rates by elevating pressure to get more driving force sometimes encounter poor process performance that might oe attributed to excessive dissolved carbon dioxide. [Pg.2139]

Hypoperfusion of skeletal muscles leads to fatigue, weakness, and exercise intolerance. Decreased perfusion of the central nervous system (CNS) is related to confusion, hallucinations, insomnia, and lethargy. Peripheral vasoconstriction due to SNS activity causes pallor, cool extremities, and cyanosis of the digits. Tachycardia is also common in these patients and may reflect increased SNS activity. Patients will often exhibit polyuria and nocturia. Polyuria is a result of increased release of natriuretic peptides caused by volume overload. Nocturia occurs due to increased renal perfusion as a consequence of reduced SNS renal vasoconstrictive effects at night. In chronic severe HF, unintentional weight loss can occur which leads to a syndrome of cardiac cachexia. This results from several factors, including loss of appetite, malabsorption due to gastrointestinal edema, elevated metabolic rate, and elevated levels of proinflammatory cytokines. [Pg.39]

On the other hand, association with more palatable seaweeds may have a negative impact on the chemically defended partner. For example, Halimeda specimens from Conch Reef, Florida Keys, with more than 50% of their thalli covered by Dictyota grow significantly slower than unepiphytized thalli (Beach et al. 2003). This study also verified that epiphytic Dictyota negatively affects metabolic rates of Halimeda tuna in part by shading their thalli, but probably also by chemical means, because the exposure to Dictyota-conditioned water elevated respiration rates in a manner similar to when H. tuna is naturally epiphytized by Dictyota. [Pg.42]

The term hyperthermia denotes an elevation in body temperature, regardless of its cause. The heat produced by prolonged intense exercise is due to an increased metabolic rate which raises the body temperature a condition which is easily reversed. In contrast, the hyperthermia in trauma or infection is not readily reversed and is known as fever. The source of the heat is not known but there are four possible sources and all may contribute ... [Pg.424]

L A. By blocking renal prostaglandin synthesis, COX-2 inhibitors, such as rofecoxib, decrease the blood flow to the juxtaglomerular apparatus, thus stimulating the release of renin and subsequent Na" retention and blood pressure elevation. Rofecoxib is neither metabolized nor induced by CYP2C9. It decreases rather than increases renal blood flow and does not increase the excretion of hydrochlorothiazide. Item D is incorrect because rofecoxib has very little effect on COX-1 and prostaglandins are not a major controlling factor of peripheral vascular tone. Rofecoxib does not decrease basal metabolic rate. [Pg.439]

Thyroid hormones govern the body s metabolic rate. This means that the metabolism of nutrients and subsequent cellular utilization or storage rate is dependent upon blood circulatory thyroid hormone levels. Higher levels result in elevated over all metabolic rate providing that other metabolic factors are accommodated also. [Pg.105]

Many athletes were not aware of the fact that thyroid hormones are a true form of absolute anabolic. The usual method of employment for thyroid hormones was during pre-contest periods. Obviously, this is because increased thyroid hormone levels means elevated metabolic rate and resulting increased calorie expenditure or use. This explanation itself suggests the noted anabolic potential. [Pg.106]

An advantage of T-3/L-triiodothyronine administration over T-4/L-thyroxine was the lack of dependence upon the liver enzyme responsible for T-4/T-3 conversion. During diet restricted periods the liver naturally decreases the liver enzyme levels as a control measure to prevent metabolic rate induced starvation. Just as the liver increases production of this enzyme in response to elevated calorie intake it also reduces levels in response to decreased calorie intake. Remember that T-4 /L-thyroxine is only 20% as active as T-3/L-triiodothyronine. [Pg.111]

In two humans who received doses in the range of 0.5-1.0 mg/kg/day for 40 48 days, basal metabolic rate peaked at 35% above normal on day 34 in one individual, while in another individual it was greater than 50% above normal from days 21 to 23 (Dodds and Robertson 1933) Because this dose appeared to cause no other symptoms, the investigators assumed that a dose in this range was safe to be administered to humans. An elevated basal metabolic rate was observed in 6 patients who had ingested an average of 1.05 mg/kg/day DNOC for 14-63 days (Ibrahim et al. 1934). Basal metabolic rate was increased by as much as 77% in one individual. All patients involved with the study had an elevated body temperature accompanied with perfuse perspiration and frequently complained of thirst and fatigue. Food intake was either diminished or remained the same. An elevated body temperature and excessive perspiration were also observed in three of four patients who received 0.58-1.0 mg/kg/day DNOC for 4-11 weeks (Plotz 1936). [Pg.46]

Metabolic Effects. Metabolic effects observed in humans include elevated body temperature, profuse sweating, and increased basal metabolic rate. These clinical signs are related to the uncoupling of oxidative phosphorylation by DNOC (see Section 2.3.5). Uncoupling of oxidative phosphorylation results in heat production that exceeds the organism s capacity to dissipate heat. Consequently, fatal hyperthermia may occur. These clinical signs were not observed or reported in animals dermally exposed to DNOC. [Pg.57]

The mechanism of action of DNOC depends on its ability to uncouple oxidative phosphorylation and consequently cause elevated metabolic rates and hyperthermia. There is no antidote to arrest or reverse the metabolic disturbances in humans exposed to DNOC. However, 4-methyl-2-thiouracil has been given to DNOC-poisoned animals to reduce high metabolic rates and other toxic effects of... [Pg.91]

Intermediate-Duration Exposure. The respiratory tract, heart, bone marrow, gastric mucosa, liver, and kidney were target organs in humans after occupational exposure that involved a combination of inhalation and dermal exposures to DNOC for intermediate durations (Bidstrup and Payne 1951 Hunter 1950 Pollard and Filbee 1951). Increased basal metabolic rates and body temperatures were also observed in humans after occupational exposure to DNOC for intermediate durations (Hunter 1950 Pollard and Filbee 1951). Elevated pulse rates, weight loss, and increased basal metabolic rates and body temperatures were observed in humans after ingestion of DNOC for intermediate durations (Dodds and Robertson 1933 Ibrahim et al. 1934 Plotz 1936). [Pg.95]

Specific dynamic action (SDA) is the elevation in metabolic rate that occurs during digestion and absorption of foods. It is often ignored in calculations because its value is usually unknown and probably small (less than 10% of the total energy). [Pg.3]


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