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At least 361 records · Page 20Linked to original sources
PubMed1998

Validation of a short qualitative food frequency list used in several German large scale surveys.

Our study aimed to test the validity of a short, qualitative food frequency list (FFL) used in several German large scale surveys. In the surveys of the MONICA project Augsburg, the FFL was used in randomly selected adults. In 1984/85, a dietary survey with 7-day records (DR) was conducted within the subsample of men aged 45 to 64 (response 70%). The 899 DR were used to validate the FFL. Mean weekly food intake frequency and mean daily food intake were compared and Spearman rank order correlation coefficients and classification into tertiles with values of the statistic Kappa were calculated. Spearman correlations range between 0.15 for the item "Other sweets (candies, compote)" and 0.60 for the items "Curds, yoghurt, sour milk", "Milk including butter milk" and "Mineral water"; values for statistic Kappa vary between 0.04 ("White bread, brown bread, crispbread") and 0.41 ("Flaked oats, muesli, cornflakes" and "milk including butter milk"). With the exception of two items, FFL data can be used for analysis on group level. Analysis on individual level should be done with caution. It seems, as if some food groups are generally easier to ask for in FFL than others.

Adult↗
PubMed1999

Characteristics of Aluminum Biosorption by Sargassum fluitans Biomass.

: Biomass of nonliving brown seaweed Sargassum fluitans pretreated by different methods is capable of taking up more than 10% (11 mEq/g) of its dry weight in aluminum at pH 4.5. There are indications that the biomass hydroxyl groups were involved in sequestering the aluminum in the form of polynuclear aluminum species. Aluminum-alginate complex (like cotton candy) was formed in the aluminum sorption solution as alginate was partially released from the biomass. Aluminum uptake of S. fluitans biomass was independent of residual alginate content in the biomass. Sodium ion added for pH adjustment was not adsorbed at all in the presence of aluminum ion.

Journal Article↗
PubMed2004

Astaxanthin hyperproduction by Phaffia rhodozyma (now Xanthophyllomyces dendrorhous) with raw coconut milk as sole source of energy.

Natural carbon sources, such as those present in cane sugar molasses and grape juice, promote the synthesis of astaxanthin in different Phaffia rhodozyma yeasts. One of these, coconut milk, has a very rich nutrient composition. The aim of this work was to investigate the utility of coconut milk as sole source of energy for astaxanthin pigment production by P. rhodozyma strains. Currently, coconut pulp is widely used in industrial processes in Mexico for the production of shampoos, candies, food, etc. However, coconut milk is a waste product. We show that coconut milk enhances astaxanthin production. The fermentation yielded 850 microg/g yeast with the NRRL-10921 wild-type strain and 1850 microg/g yeast with the mutated R1 strain. Production was better than reported results employing other natural carbon sources.

Basidiomycota↗
PubMed2005

An experimental study of spider-related covariation bias in 8- to 13-year-old children.

Covariation bias can be defined as phobic subjects' tendency to overestimate the association between phobic stimuli and aversive outcomes. The current study presents two experiments that examined this type of cognitive bias in children aged 8-13 years (N=147 in Experiment 1, N=240 in Experiment 2). Children completed a self-report questionnaire for measuring spider fear and then participated in a card game in which fear-relevant (i.e., spider) and fear-irrelevant (i.e., weapon and Pokémon) pictures were equally paired with negative and positive outcomes (respectively losing and winning candy). No evidence was found for a relationship between children's level of spider fear and the tendency to link negative consequences to fear-relevant pictures. Various methodological and theoretical explanations for this null finding are discussed.

Adolescent↗
PubMed2002

[Radioactive stents: problems and potential solutions].

BACKGROUND: The implantation of radioactive stents was the first procedure of a coronary brachytherapy in Europe examined in multicenter clinical trials. PROBLEMS OF RADIOACTIVE STENTS: After more than 400 patients with radioactive stents were analyzed, it became clear that overall restenosis rates were not reduced. A new phenomenon called the "edge effect" or "candy-wrapper" effect was discovered, which later was also described for catheter-based brachytherapy. Currently, the implantation of radioactive stents for the prevention of restenosis cannot be recommended. DRUG ELUTING STENTS: Although technical improvements of radioactive stents are theoretically possible, novel drug coated stents may overcome any future research of stent-based radiotherapy. Drug eluting stents induce antiproliferative effects beyond the stent margins. Edge effects were not observed in preliminary trials. However, long-term results need to be awaited.

Angioplasty, Balloon, Coronary↗
PubMed1982

Identification of transcalciferin as a major component of human parotid saliva by crossed immunoelectrophoretic mapping.

Human parotid saliva collected from Stenson's duct during sour candy-stimulated salivation was studied by crossed immunoelectrophoresis (X-IEP). Eleven antigens were identified in a pool of salivas from 10 adult, caucasoid males and females. Four were related to serum antigens, three being previously known: IgG, IgA and albumin. The fourth was identified as Gc globulin, also known by function as transcalciferin. Salivary Gc is electrophoretically different from serum Gc, migrating as an alpha 2-beta component rather than as an alpha 1 globulin. The quantities of 8 of the 11 antigens detected by X-IEP were compared for salivas from 10 subjects. These quantities and their ratios to each other were highly variable, indicating idiosyncratic secretory patterns. Only quantities of amylase were moderately consistent from donor to donor. Quantitatively, Gc is a major antigen in parotid saliva. Large proportions of a salivary antigen, alpha 1c, were found in two of the 10 subjects--adult males who never had developed caries. Among the other 8 subjects, all with caries, proportions of alpha 1c were much lower, and 2 subjects lacked it. None of the other antigens measured showed any correlation with caries resistance. The nature and function of alpha 1c are unknown.

Adult↗
PubMed1984

Teaching a six-year-old girl to swallow pills.

The present study used a modeling and shaping procedure to teach a 6-year-old girl to take pills. During one 45-min session, following instruction and modeling by the experimenter, the subject was presented candy hearts of increasing size, with reinforcers provided for successful swallowing. Maintenance and generalization of treatment effects were reported at home and at school.

Behavior Therapy↗
PubMed1992

Experimentally induced taste aversions in humans: effects of overshadowing on acquisition.

This study used vection-induced symptoms of motion sickness as an unconditioned stimulus to condition food aversions in humans and to evaluate the efficacy of an overshadowing agent (novel flavored candy: CS2) to attenuate acquisition of the aversion. Subjects unfamiliar with a target food (CS1) were assigned to one of the following three groups which were identical except for order of exposure to stimuli: Taste Aversion Group (CS1-US-CS2-Test), Control Group (US-CS1-CS2-Test), and Overshadowing Group (CS1-CS2-US-Test). Subjects were tested on aversion ratings and consumption of the target flavor and ratings of the overshadowing agent. Subjects in the Taste Aversion group rated the target flavor as significantly more aversive and consumed less of it, although not significantly so, that did those in the Control group. The Overshadowing group consumed significantly more of the target food than did the Taste Aversion Group. Considering only subjects unfamiliar with the overshadowing agent, those in the Overshadowing group rated the agent (CS2) as significantly more aversive than the Taste Aversion and Control groups. Implications of these findings to taste aversions in humans are discussed.

Adolescent↗
PubMed1977

Antagonism of the paralysis produced by botulinum toxin in the rat. The effects of tetraethylammonium, guanidine and 4-aminopyridine.

The injection of botulinum toxin type A into the hind-leg of adult rats causes complete paralysis of the leg lasting for several weeks. In the extensor digitorum longus (EDL) muscle transmitter release is reduced to a level of less than 1% of normal. Tetraethylammonium (TEA) and guanidine in concentrations of about 3 mM restore, in EDL muslces in vitro, neuromuscular transmission to about the normal level, provided that the external calcium concentration is 4 mM or higher. 4-Aminopyridine (4-AP) has similar restorative effect but is about 20-30 times more potent. Unlike TEA and guanidine, 4-AP is effective when the ambient calcium concentration is 2 mM; this drug is therefore also active in vivo. The intravenous injection of 4-AP (5 mg/kg body weight) restores neuromuscular transmission from complete paralysis by botulinum toxin to a normal level as shown by the recording of almost normal twitch and tetanic tensions in the EDL muscle. In rats paralysed by a lethal dose of botulinum toxin, the intraperitoneal administration of 4-AP restores general motor activity, the effect lasting 1-2 hours. A study of the effects of these drugs on spontaneous and evoked transmitter release suggests that all three compounds increase the level of free calcium inside the nerve terminals. In botulinum poisoning the transmitter release mechanism appears to be intact, but a reduced sensitivity to calcium has been shown (Cull-Candy et al. 1976), and this could explain why the drugs restore evoked transmitter release in botulinum poisoning.

Action Potentials↗
PubMed1982

Adjunctive behavior in children on fixed interval food reinforcement schedules.

Four female children (4 to 6 years of age) were tested on fixed interval (FI) 30-sec and 60-sec food schedule with M & M candy reinforcers. All four subjects displayed increased movement on the FI schedules as compared to appropriate FR 1 baseline conditions. Increased drinking was shown by three subjects, and increased vocalization by two subjects. These results clearly demonstrated schedule-induced behaviors in children with food reinforcement schedules which are typically used in animal experiments.U

Child↗
PubMed1984

Schedule-induced behavior in children as a function of interreinforcement interval length.

Two four year old twin female children were tested on fixed interval (FI) 30-, 60-, 90- and 120-sec food schedules with M&M candy reinforcers. Both subjects displayed increased drinking, gross and fine body movement, and grooming on the FI schedules as compared to Baseline conditions. Bitonic functions were noted for drinking, fine body movements and grooming for Subject J and for drinking and fine movement for Subject K, similar to those which have previously been reported in animal studies. These preliminary results demonstrated that certain behaviors may be induced by intermittent food reinforcement schedules in humans and are excessive when appropriate baselines are used for comparison. Also, these data further strengthen the species generality of schedule-induced behaviors to human subjects.

Animals↗
PubMed1985

The effects of paraventricular hypothalamic lesions on maternal behavior in rats.

The present study was undertaken to determine whether the disruptive effects of knife cuts which sever the lateral connections of the medial preoptic area (MPOA) on maternal behavior are mediated by interfering with the output of the paraventricular hypothalamic nucleus (PVN). Postpartum rats received one of the following: Knife cuts severing the lateral connections of the MPOA; knife cuts severing the lateral connections of the PVN; radiofrequency lesions of the PVN; sham lesions or knife cuts. Only females that received knife cuts severing the lateral connections of the MPOA showed severe deficits in maternal behavior. These results indicate that the influence of the MPOA on maternal behavior is not mediated by the output of the PVN. Since the PVN is the major source of oxytocin input to other brain regions, these results also suggest that oxytocinergic neural pathways are not critical for postpartum maternal behavior. Another important finding was that females with MPOA knife cuts that did not retrieve their young were capable of hoarding candy, suggesting that the retrieval deficit was not the result of a general oral motor deficit.

Animals↗
PubMed1994

Licorice ingestion and blood pressure regulating hormones.

Nearly half a century ago Revers reported that administration of a paste prepared from succus liquiritiae, a dried watery extract of the roots of Glycyrrhiza glabra, resulted in a reduction in abdominal symptoms as well as radiographic evidence of healing in patients suffering from gastric ulcer. Subsequent studies demonstrated that this preparation could prevent the formation of gastric ulcers in experimental animals and confirmed the salutary effects in patients, but found that approximately 20% of patients so treated developed facial and dependent edema, often accompanied by headache, shortness of breath, stiffness, and pain in the upper abdomen. Although these symptoms suggested an allergic reaction, they were not accompanied by eosinophilia or relieved by antihistamines. These untoward effects usually subsided with a reduction of dose, although in some patients treatment had to be discontinued entirely. Given this profile of side effects, enthusiasm for licorice as a remedy for peptic ulcer disease soon faded. However, the popularity of licorice flavoring in candy and in other products such as chewing tobacco persists to this day, as do the problems in electrolyte and blood pressure homeostasis that can occasionally occur in individuals ingesting large quantities of licorice-containing products. Although the pattern of the renal response suggested that the active ingredients in licorice were acting directly on the mineralocorticoid receptors in the kidney, an even more fascinating explanation for the toxic effects of licorice has emerged in the past decade.(ABSTRACT TRUNCATED AT 250 WORDS)

Adrenal Glands↗
PubMed1986

In vitro studies of biological effects of cigarette smoke condensate. II. Induction of sister-chromatid exchanges in human lymphocytes by weakly acidic, semivolatile constituents.

Cigarette smoke condensate is known to enhance the frequency of sister-chromatid exchanges (SCE) in human lymphocytes in vitro and some of the activity has been found in the most volatile part of the particulate phase, the semivolatile fraction. In this study we have investigated the chemical composition and the SCE-inducing activity of the weakly acidic, semivolatile fraction of a cigarette smoke condensate. A number of individual weakly acidic compounds were also tested for their SCE-inducing effects. The weakly acidic fraction was separated by preparative gel chromatography into 11 subfractions (F1-F11). The chemical composition was determined by gas chromatography and gas chromatography-mass spectrometry. Measurements of the effects on SCE in human lymphocytes were used to evaluate the genotoxic effects. All fractions except F11 induced SCE in a dose-dependent way. The most active fraction was F4 which contained mainly alkyl-2-hydroxy-2-cyclopenten-1-ones. The individual compounds to be tested for induction of SCE were selected on the basis of their abundance in the weakly acidic subfractions and on the basis of their occurrence in the environment. Of 23 tested compounds, most of which were alkylphenols, 7 induced SCE, i.e., catechol, 2-(1-propenyl)phenol, cyclotene, maltol, isoeugenol, 2-methoxyphenol (guaiacol) and vanillin. Many of these are important flavor components that occur not only in tobacco and tobacco smoke but also in food, candies, beverages and perfumes.

Acids↗
PubMed1996

Caffeine consumption.

Scientific literature cites a wide range of values for caffeine content in food products. The authors suggest the following standard values for the United States: coffee (5 oz) 85 mg for ground roasted coffee, 60 mg for instant and 3 mg for decaffeinated; tea (5 oz): 30 mg for leaf/bag and 20 mg for instant; colas: 18 mg/6 oz serving; cocoa/hot chocolate: 4 mg/5 oz; chocolate milk: 4 mg/6 oz; chocolate candy: 1.5-6.0 mg/oz. Some products from the United Kingdom and Denmark have higher caffeine content. Caffeine consumption survey data are limited. Based on product usage and available consumption data, the authors suggest a mean daily caffeine intake for US consumers of 4 mg/kg. Among children younger than 18 years of age who are consumers of caffeine-containing foods, the mean daily caffeine intake is about 1 mg/kg. Both adults and children in Denmark and UK have higher levels of caffeine intake.

Adolescent↗
PubMed1986

The effects of cigarette smoking on human sexual potency.

Forty-two male cigarette smokers, age 18 to 44, were randomly assigned to high-nicotine, low-nicotine, or control groups in a study relating cigarette smoking to sexual response. Subjects watched erotic film segments while their penile diameters, heart rates, and finger pulse amplitudes were continuously recorded by a polygraph. Subjects in the smoking groups smoked relatively high-nicotine (.9 mg) or very low-nicotine (.002 mg) cigarettes prior to watching the last two films, while control subjects ate candy. Smoking two high-nicotine cigarettes in immediate succession significantly decreased the rate of penile diameter change relative to the other conditions. These effects were not seen after a single cigarette was smoked. High-nicotine cigarettes caused significantly more vasoconstriction and heart rate increase than did low-nicotine cigarettes, which did not differ from control conditions.

Adolescent↗
PubMed1993

The 'cerebral diabetes' paradigm for unipolar depression.

Unipolar depression, alcoholism and suicide have become more common over the past decades. Genetic studies have attempted to link (bipolar) affective disorder to the short arm of chromosome 11 (where the loci for insulin, insulin growth factor (IGF), tyrosine hydroxylase (TH) and h-ras-oncogene are located) but these have failed. Since TH and the insulin receptor require phosphorylation by protein kinases, then a defect of the h-ras-oncogene or its products (p21) could disorder both these systems and compromise catecholaminergic transmission in neurones and energy flow in glial cells. This could lead not only to a predisposition to depression ('trait markers') but to neurotoxic damage, predisposed by inadequate cytosol Mg2+ levels of hypometabolism. Tyrosine, tryptophan and phenylalanine hydroxylases all require tetrahydrobiopterin (BH4) which allosterically regulates its own activity as well as that of these enzymes. Anything which impairs this cofactor could lead to overt depression in predisposed individuals, and the heterocyclic amines are being increasingly implicated. These substances are derived from fried and broiled meats, azo food dyes, soft drinks and hard candies, but particularly from cigarette and petroleum fumes. The heterocyclic amines can inhibit aromatic-l-amino-acid-decarboxylase (AADC) as well as the hydroxylases reversibly, but BH4 is inhibited noncompetitively. Thus, susceptible individuals (those with inherited defective protein kinase phosphorylation) might be 'tipped over' by chronic exposure to these neurotoxins. The rising incidence of unipolar depression-associated morbidity could be significantly linked to increasing levels of heterocyclic amines in the developed nations.

Amines↗
PubMed1995

Oral capsaicin provides temporary relief for oral mucositis pain secondary to chemotherapy/radiation therapy.

Pain from oral mucositis afflicts from 40% to 70% of patients receiving chemotherapy or radiation therapy. Current methods of clinical pain management (for example, topical anesthetics, systemic analgesics) have limited success. In a pilot study, we examined the ability of oral capsaicin to provide temporary relief of oral mucositis pain. Capsaicin, the active ingredient in chili peppers, desensitizes some neurons and has provided moderate pain relief when applied to the skin surface. Oral capsaicin in a candy (taffy) vehicle produced substantial pain reduction in 11 patients with oral mucositis pain from cancer therapy. However, this pain relief was not complete for most patients and was only temporary. Additional research is needed to fully utilize the properties of capsaicin desensitization and thus optimize analgesia.

Administration, Oral↗