| [latent sensitization to bee and wasp venoms]. | ige-rast with bee and wasp venom was performed on 200 persons without any allergic history. specific ige antibodies against bee and/or wasp venom were found in 55 persons (27, 5%); in 14 persons of these against bee, in 29 against wasp and in 12 against bee and wasp venom. specific igg antibodies were only found in 16, 4% of the silently sensitizated persons. therefore, the lack of symptoms in the remainder of this group cannot be explained by the presence of blocking igg antibodies. | 1983 | 6845790 |
| the role of choline phospholipids in hypertonic cryohemolysis. | hemolysis resulting from a warm-to-cold temperature shift in a hypertonic environment (hypertonic cryohemolysis) is studied with the use of phospholipases as membrane probes of the phospholipids of the outer leaflet of the bilayer. bee venom phospholipase a2 which attacks only phosphatidylcholine (pc) in the intact erythrocyte results in inhibition of cryohemolysis produced by both hypertonic sodium chloride and sucrose. in both cases, about 25% of the loss of pc occurs before any such inhibitio ... | 1983 | 6831908 |
| serologic aspects of igg4 antibodies. i. prolonged immunization results in an igg4-restricted response. | labeled antigen-binding tests were used to determine quantitatively the contribution of igg4 antibodies to the total igg antibody response in humans. in agreement with literature, we found no igg4-restricted antibody responses with tetanus toxoid or streptococcal carbohydrate. in the serum of individuals immunized for several years with phospholipase (pla) from honey bee venom, grass pollen allergen, or house dust mite allergen, we often found that more than 50% of the total antigen-binding capa ... | 1983 | 6600252 |
| the rate of substrate cycling between glucose and glucose 6-phosphate in muscle and fat-body of the hawk moth (acherontia atropos) at rest and during flight. | 1. the rate of substrate cycling between glucose and glucose 6-phosphate was measured in tissues of the hawk moth (acherontia atropos). 2. the insect was injected with [2-3h,2-14c]glucose, and after periods of time at rest or flying the animal was freeze-clamped. separation of glucose and hexose monophosphate from the tissues was performed by paper chromatography and t.l.c., and the 3h and 14c radioactivities in these compounds were measured. 3. on the basis of the 3h/14c ratios in these compoun ... | 1983 | 6847649 |
| melittin and a chemically modified trichotoxin form alamethicin-type multi-state pores. | the bee venom constituent, melittin, is structurally and functionally related to alamethicin. by forming solvent-free planar bilayers of small area (approx. 100 microns 2) on the tip of fire-polished glass pipettes we could observe single melittin pores in these membranes. an increase in the applied voltage induced further non-integral conductance levels. this indicates that melittin forms multi-level pores similar to those formed by alamethicin. trichotoxin a40, an antibiotic analogue of alamet ... | 1983 | 6824646 |
| alarm responses caused by newly identified compounds derived from the honeybee sting. | twelve compounds identified from honeybee,apis mellifera l., sting extracts were evaluated in a standardized laboratory test for their effectiveness in eliciting an alarm response from caged worker honeybees. two-1-decanol and phenol-were judged ineffective as alarm pheromones. the other ten-1-butanol, isopentyl acetate, isopentyl alcohol, 1-hexanol, 2-heptyl acetate, 2-heptanol, 1-octanol, 1-acetoxy-2-octene, 2-nonyl acetate, and 1-acetoxy-2-nonene-produced alarm responses of similar speed and ... | 1983 | 24408619 |
| two-dimensional polyacrylamide gel electrophoresis of hymenoptera venom and venom sac extracts. | hymenoptera venom and venom sac extracts were studied by two-dimensional polyacrylamide gel electrophoresis using non-equilibrium ph gradient electrophoresis in the first dimension and sodium sulfate electrophoresis in the second dimension. pure apis mellifera (honeybee) venom collected by electrical stimulation was resolved into five major and more than 20 minor components. polistes (paper wasp), vespula (yellow jacket), dolichovespula (aerial hornet) and vespa (old world hornet) venom sac extr ... | 1983 | 6857712 |
| caste-specific maturation of the endocrine system in the female honey bee larva. | the endocrine system of female honey bee larvae has been studied through postembryonic development with histological and autoradiographic techniques. during larval development, brain and retrocerebral complex proceed from immature cells to an active endocrine system. caste-specific retardation occurs in the worker during this process. in the developing queen, the differentiation of the neurosecretory cells (nsc) and the outgrowth of their axons occurs from the second instar onward and is nearly ... | 1983 | 6850768 |
| the venom system and venom hyaluronidase of the african honeybee (apis mellifera adansonii). | | 1983 | 6845382 |
| age and oxygen toxicity related fluorescence in the honey bee thorax. | the blue fluorescent material in thoraxes of honey bees of known adult age from eclosion to 28 days was measured. the amount was greater in older insects and exposure to ozone (ppm) augmented the rate of accumulation. the nearly constant daylight flying by the bees and the ozone effect suggest radical peroxidative origin of the fluorescence. the material was partially purified by chromatography. it is a relatively non-polar lipid. | 1983 | 6673991 |
| structural aspects of the interaction of bee venom peptide melittin with phospholipids. | | 1983 | 6673766 |
| the glycoprotein nature of phospholipase a2, hyaluronidase and acid phosphatase from honey-bee venom. | experiments with immobilized concanavalin a strongly suggest a glycoprotein nature of three honey-bee venom enzymes, phospholipase a2, hyaluronidase and acid phosphatase. the electrophoretically and chromatographically detectable heterogeneity of phospholipase a2 results from absence of carbohydrate in a subfraction. mannose, fucose and n-acetylglucosamine, but not galactose nor n-acetylgalactosamine, are present in the con a-binding fraction of bee venom. it is therefore concluded that only n-g ... | 1983 | 6658811 |
| changes in the levels of anti-phospholipase a2 and hyaluronidase antibodies during bee venom immunotherapy. | | 1983 | 6646134 |
| the coelocapitular sensillum, an antennal hygro- and thermoreceptive sensillum of the honey bee, apis mellifera l. | the sensillum coelocapitulum, a hygro- and thermoreceptive sensillum of the honey bee, apis mellifera, was investigated by electron microscopy. the cuticular apparatus of the sensillum is a mushroom-shaped protrusion, devoid of pores, set in a narrow cylindrical pit positioned centrally within a cuticular, shallow depression. there may be three or four receptor cells. three receptor cells have unbranched sensory cilia, containing densely packed microtubules, which extend distally into the cuticu ... | 1983 | 6616572 |
| antibody responses to honey-bee venom and monomethoxy-polyethylene glycol-modified honey-bee venom in mice. | antibody responses of the ige isotype were raised in mice with honey-bee venom (hbv) administered in alum or by daily injections without adjuvant. the sensitized mice were treated with single injections of hbv modified with monomethoxy-polyethylene glycol. by such treatment with modified but not with natural hbv, suppression of the ige antibody responses was achieved. the igg antibody responses, in contrast, were unchanged or enhanced. | 1983 | 6602097 |
| [therapeutic use of bee royal jelly]. | | 1983 | 6555102 |
| [a stoichiometric interpretation of the significance of the hill coefficient of some kinetically cooperative enzymes. application to alpha-glucosidases of the hemolymph of bees]. | in an enzyme complex where active subunits are aggregated in functional groups undergoing steric interactions, the hill coefficient can reflect the ratio of the partial reaction order of the substrate upon the enzyme one, according to the mass action law. honeybee haemolymph alpha-glucosidases kinetics support this theory in negative and positive cooperativity cases. | 1983 | 6424880 |
| biogenic amines in the brain of the honeybee, apis mellifera. | fluorescence histochemistry with glyoxylic acid has been used in close conjunction with detailed anatomical studies (mobbs 1982) to investigate the distribution of fluorogenic amines in the brain of the honeybee, apis mellifera. in addition, the concentration and distribution of biogenic amines in the brain of the bee have been determined using highly sensitive radioenzymatic techniques and high performance liquid chromatography. the cerebral ganglia of the bee contain similar amounts of dopamin ... | 1983 | 6420063 |
| allergy to honeybee body components: distinction from bee venom sensitivity. | two patients with inhalant allergy to whole bee body components are described, documented by positive skin tests to whole bee body extract and the presence of serum bee body-specific ige. both had evidence of mild sensitivity to bee venom. rast inhibition studies indicated that the ige antibodies directed at whole bee body components and bee venom were distinct. these observations suggest that venom allergy from insect stings and bee body inhalant allergy are caused by different antigens. | 1983 | 6185554 |
| [allergic reactions to bee and wasp stings seen at a resuscitation department]. | | 1982 | 7164391 |
| purification from bee venom of melittin devoid of phospholipase a2 contamination. | | 1982 | 7165093 |
| iron-containing cells in the honey bee (apis mellifera). | honey bees are sensitive to earth strength magnetic fields and are reported to contain magnetite (fe3o4) in their abdomens. we report bands of cells around each abdominal segment that contain numerous electron-opaque, iron-containing granules. the iron is principally in the form of hydrous iron oxides. | 1982 | 17791591 |
| colony defense by africanized and european honey bees. | africanized and european honey bee (apis mellifera) populations showed quantitative differences in colony defensive behavior. africanized bees responded faster and in much larger numbers than european honey bees and produced 8.2 and 5.9 times as many stings during two different experiments. times to react to alarming stimuli were negatively correlated with the number of bees responding and to the total number of stings. the number of bees responding was significantly correlated to the total numb ... | 1982 | 17776713 |
| infantile multicystic encephalomalacia after maternal bee sting anaphylaxis during pregnancy. | | 1982 | 7138068 |
| severe thrombocytopenic purpura following a bee sting. | | 1982 | 6889823 |
| [prevention of general allergic reactions to bee and wasp stings]. | | 1982 | 7144936 |
| obligate necrophagy in a social bee. | the social bee trigona hypogea uses carrion instead of pollen as a protein source. nests lack stored pollen, pollen is absent in larval provisions, and corbiculae for pollen transport on worker hind legs are reduced. glandular secretions of 20 percent protein content appear to replace stored pollen. toothed mandibles, pheromonal recruitment to resources, and aggressive foraging behavior facilitated evolution of necrophagy in this tropical forest bee lineage. | 1982 | 17839343 |
| behavior of bumble bee pollinators of aralia hispida vent. (araliaceae). | the andromonoecious plant aralia hispida has a complicated blooming schedule involving alternations between male and female phases.nectar and pollen are released gradually through the day. plants vary considerably in number of flowers per umbel and number of umbels per plant. the major pollinators, bumble bees, show several characteristic behaviors in response to the plant's presentation. 1. foraging bees preferentially visit umbels that bear large numbers of open, male-phase flowers. they also ... | 1982 | 28309956 |
| nerol: an alarm substance of the stingless bee,trigona fulviventris (hymenoptera: apidae). | bees of the genustrigona and subgenustrigona possess volatile materials in their mandibular glands, used as alarm substances and as marking pheromones. heads of workers oftrigona fulviventris were analyzed by gas chromatography-mass spectrometry. the two major volatile components were nerol (∼ 50%), and octyl caproate (∼ 20%). relative to other substances tested at a costa rican nest, treatments containing 20 μg of nerol attractedt. fulviventris, depressed numbers of bees leaving the nest by abo ... | 1982 | 24413960 |
| incisor shape and incisor crowding: a re-evaluation of the peck and peck ratio. | although lower incisor tooth shapes, defined as mesiodistal length divided by labiolingual width, have bee proposed as important factors in lower incisor crowding, the question of whether or not these ratios are more useful than simple measurements of incisor mesiodistal length has not been addressed. in order to test this question, we measured mesiodistal and labiolingual incisor dimensions and lower incisor crowding (defined as the crowding index proposed by little) on dental casts from two gr ... | 1982 | 6961795 |
| allergy in beekeepers. | beekeepers represent a high-risk group for allergic disorders. they are affected by beestings but only a very limited fraction of the population develops severe anaphylactic symptoms. on the other hand several beekeepers have slight anaphylactic symptoms when they start working. immunologically they are like "spontaneously desensitized subjects". they often have bee-venom specific ige and all of them have very high titers of bee-venom specific igg. beekeepers may present an atopic sensitization ... | 2004 | 6219557 |
| kinetic study of the inhibition of the honeybee haemolymph apha-glucosidase in vitro by baye 4609, bayg 5421 and bayn 5595. | three therapeutic inhibitors of vertebrate alpha-glucosidases recently assayed in research on diabetes control, show high inhibitory potencies towards the p-np-alpha-d-glucosidase activity of honeybee haemolymph. baye 4609 is an allosteric v-type (pure non-competitive) inhibitor with: ki congruent to k'i congruent to i50 congruent to 180 micro m; n = 1.17; ni = 1.15 bayg 5421, an hydrolysis derivative of the former, is a mixed allosteric inhibitor with: ki congruent to 0.17 micro m; k'i congruen ... | 1982 | 6215920 |
| [bee venom containing forapin in the treatment of mesenchymal diseases of the locomotor system. report on treatment results in 211 patients]. | | 1982 | 7132669 |
| bee venom hypersensitivity in busselton. | | 1982 | 6123766 |
| clinical and immunological surveys in bee keepers. | two hundred and fifty bee keepers in the south of france, working seasonally, were clinically investigated by means of a questionnaire. forty-three per cent had presented anaphylactic symptoms and 7.0% toxic reactions when stung by bees. the personal atopic history was found to be significantly (p less than 0.01) elevated in bee keepers who experienced anaphylaxis. total serum ige and been venom-specific ige were titrated in 100 subjects. total serum ige was significantly elevated in allergic be ... | 1982 | 7116611 |
| a circular dichroism study of the structure of apis mellifera melittin. | | 1982 | 7114851 |
| kinetics of oxygen consumption after a single flash of light in photoreceptors of the drone (apis mellifera). | the time course of the rate of oxygen consumption (qo2) after a single flash of light has been measured in 300-micrometers slices of drone retina at 22 degrees c. to measure delta qo2(t), the change in qo2 from its level in darkness, the transients of the partial pressure of o2 (po2) were recorded with o2 microelectrodes simultaneously in two sites in the slice and delta qo2 was calculated by a computer using fourier transforms. after a 40-ms flash of intense light, delta qo2, reached a peak of ... | 1982 | 6288837 |
| [bee and wasp venom allergy. clinical aspects, prevention and therapy]. | | 1982 | 6810134 |
| the structure of melittin. i. structure determination and partial refinement. | melittin is the principal protein component of bee venom and is thought to function as a lytic agent. despite its predominantly hydrophobic character, melittin is soluble as a tetramer in aqueous salt solutions. we report here on the determination of the crystal structure of tetrameric melittin at 2.8-a resolution by the method of multiple isomorphous replacement, followed by partial atomic refinement at 2.0-a resolution. the melittin tetramer contains a noncrystallographic 2-fold axis of symmet ... | 1982 | 7076661 |
| "miracle" bee pollen: don't let your patients get stung! | | 1982 | 7108397 |
| bee stings. | | 1982 | 6122964 |
| sociochemical alteration of honeybee hoarding behavior. | hoarding experiments were conducted with honeybees (apis mellifera l.) in cages containing comb treated with either 2-heptanone, isopentyl acetate, citral, or geraniol. 2-heptanone increased hoarding rates; isopentyl acetate decreased hoarding rates; citral and geraniol had no observed effect. | 1982 | 24415185 |
| comparison of stated and measured patient heights and weights. | stated and measured patient heights and weights were compared, and the clinical importance of any differences was determined. a total of 112 health-clinic patients were interviewed for height and weight determinations. they were divided into four groups: men 21-35 years old; men 65 years and older; women 21-35 years old; and women 65 years and older. the stated and the actual heights and weights were analyzed for significant differences. calculations of body surface area (bsa) and basal energy e ... | 1982 | 7081255 |
| bee stings. | | 1982 | 6121247 |
| bee sting of the cornea: case report. | three cases of corneal bee sting were treated. each eye reacted differently from the others: case 1 with severe pain, conjunctival chemosis and hyperemia, central corneal edema, and reduced visual acuity; case 2 with severe pain, conjunctival hyperemia, and a white corneal infiltrate; and case 3 with only a minimal foreign-body sensation. the reaction to the venom can be toxic or immunologic. the behavior of the toxins-melittin, apamin, and formic acid-and of the principal allergen (probably pho ... | 1982 | 7103318 |
| [use of bee honey in medicine]. | | 1982 | 6918760 |
| the effect of venom skin testing on venom rast titers. | venom rast titers were measured in 20 insect-sensitive patients before and two to three weeks after skin testing with insect venoms to determine whether venom testing might cause a rise in venom ige titers. no significant rise in venom-specific rast titers for honey bee, wasp and yellow jacket venoms was observed. | 1982 | 7065477 |
| bee bite and the toxic shock syndrome. | | 1982 | 7059111 |
| glyceryl trinitrate (nitroglycerin) ointment and isosorbide dinitrate: a review of their pharmacological properties and therapeutic use. | sublingual glyceryl trinitrate (nitroglycerin) is the most widely used drug in the treatment of angina pectoris, but its use is limited due to its short acting effect. recent investigations have shown that some longer acting nitrates administered orally or topically have a long acting antianginal effect. the mechanism of the antianginal effect of nitrates is multifactorial. nitrates increase oxygen supply to the myocardium by causing redistribution of coronary blood flow. in addition, nitrates d ... | 1982 | 6804202 |
| how important is the myeloperoxidase microbicidal system of phagocytic cells? | the myeloperoxidase system is presented by most immunology textbooks as a major microbicidal system of phagocytic cells. this theory, however, has not bee subjected to vigorous testing in the clinical arena. of 14 patients with primary myeloperoxidase deficiency, only 3 had infectious complication. all 3 patients have more plausible explanation than myeloperoxidase deficiency for their infectious complications. two of these patients were healthy until middle age when they developed systemic cand ... | 1982 | 6283326 |
| [effect of serotonin on nervous system function and behavior in the honeybee]. | serotonin in concentration of 0.0025% increased the excitability of chemoreceptors and the dancing rhythm rate in honey bees; higher concentrations diminished electrical activity in the second thoracic ganglion, lowered dancing rhythm rate and accelerated the alteration of food conditioning reflexes. serotonin exerted no effect on the excitability thresholds of the peripheral nervous activity. a possibility of serotoninergic mediation of neural event in disruption of genetically determined trypt ... | 1982 | 6281094 |
| bee-sting diseases: who is at risk? what is the treatment? | many of the large number of people who are stung each year by bees experience frightening systemic reactions, but the vast majority of such reactions are not life-threatening. there is no evidence that the very few who die as a result of a bee sting come from the pool of those who once before sustained a systemic reaction. on the contrary, no reaction at all may be a more ominous predictor of a lethal outcome on a subsequent sting. death comes about through multiple mechanisms, and not through a ... | 1982 | 6121151 |
| conformation and aggregation of melittin: dependence on ph and concentration. | melittin, a 26-residue peptide from bee venom, is transformed from a largely random to a largely alpha-helical conformation at elevated ph. at 3 x 10(-5) m melittin, circular dichroism spectra show a transition with a pk near 9.6. at 8 x 10(-5) m, two approximately equal transitions occur with pks at 7.2 and 9.6. at 6 x 10(-4) m, a single transition is seen with a pk of 6.8, followed by a more gradual increase to at least ph 11. the transitions near ph 7 presumably arise from deprotonation of th ... | 1982 | 7066299 |
| nasonov pheromone of the honeybee.apis mellifera l. (hymenoptera, apidae) : iv. comparative electroantennogram responses. | electroantennogram (eag) responses from worker honeybee antennae were obtained for each nasonov component. response amplitudes to 10 μg of components correlated well with reported relative abilities to attract foragers in the field. eag responses of worker, queen, and drone antennae to natural pheromone were consistently greater than to synthetic pheromone, a difference only partly explained by enzymic conversion of geraniol to (e)-citral during preparation of natural extracts. | 1982 | 24414967 |
| bioassay of compounds derived from the honeybee sting. | nine compounds identified from honeybee,apis mettifera l., sting extracts and one compound identified from the honeybee mandibular gland were evaluated in a standardized laboratory test for their effectiveness in eliciting an alarm response from caged honeybees. two,n-decyl acetate and benzyl alcohol, were judged ineffective as alarm pheromones. the remaining eight-2-nonanol, isopentyl acetate,n-butyl acetate,n-hexyl acetate, benzyl acetate, isopentyl alcohol, andn-octyl acetate from the sting a ... | 1982 | 24414957 |
| caloric requirements in patients with inflammatory bowel disease. | measured resting energy expenditure (ree) was compared to predicted basal energy expenditure (bee) in 35 consecutive patients with nonseptic inflammatory bowel disease (ibd) and 20 healthy volunteers. patients with ibd were groups greater or less than 90% ideal body weight (ibw). the bee in kcal/day was found to be equivalent to the measured ree in both patient groups. it is suggested that the bee be used to determine caloric requirements in nonseptic patients with inflammatory bowel disease. pa ... | 1982 | 7055399 |
| how doth the busy little bee. | | 1982 | 7054677 |
| the turnover of milkweed pollinia on bumble bees, and implications for outcrossing. | bumble bees (bombus spp.) picked up a pollen packet (pollinium) of milkweed (asclepias syriaca l.) every 2-5 h, usually more rapidly on their feet than on their mouthparts. pollinia were retained an average of slightly over one day on the mouthparts and one-quarter day on the feet. this long retention period enhances the possibility of outcrossing in this largely or completely self-incompatible species. although many more pollinia were carried on the feet, the longer retention of those on the mo ... | 1982 | 28311108 |
| (z)-11-eicosen-1-ol, an important new pheromonal component from the sting of the honey bee,apis mellifera l. (hymenoptera, apidae.). | (z)-11-eicosen-1-ol was identified by gc-ms and microchemical methods as a major volatile component, ca. 5 μg per insect, secreted by the sting apparatus of the worker honey bee. when presented on moving lures at the hive entrance, (z)-11-eicosen-1-ol, like isopentyl acetate already known as an alarm pheromone, elicited stinging, and together these two compounds were as active as the natural pheromone from the sting. on stationary lures, (z)-11-eicosen-1-ol prolonged the effectiveness of isopent ... | 1982 | 24414592 |
| the interaction with phospholipids of bee venom melittin: a structural study of the peptide and lipid components. | | 1982 | 19431457 |
| [regulatory action of bee venom on the humoral immunity system]. | | 1982 | 7200806 |
| evidence for electrostatic enhancement of odor receptor function by worker honeybee antennae. | pore plates (placoid chemosensillae) on the antennae of dead worker honeybees (apis mellifera l.) apparently retained a static electric charge that was significantly different from that of the surrounding cuticle. residual charge resulted in the concentration of airborne particulate matter over the rim of exposed pore plates to the virtual exclusion of such deposition on surrounding cuticle. postmortem integrity of polar lipids associated with the pore plate and adjacent sense cells is hypothesi ... | 1982 | 7181964 |
| [sensitivity of bee antennae to binary mixtures of fragrant substances]. | an olfactory stimulator was built to study the sensitivity of insect antennae to binary mixtures. this apparatus can deliver nine kinds of calibrated odorous stimuli: the two pure components at three different concentrations, separate and mixed. the flux which reaches the preparation remains constant before, during and after each stimulation, in order to obtain a pure olfactory response, without any mechanical or thermal contamination. theoretical models used in psychophysics are applicable to t ... | 1982 | 7166742 |
| catecholamines in honey bee (apis mellifera l.) and various vespid (hymenoptera) venoms. | liquid chromatography with electrochemical detection was used to separate, identify and quantitate the levels of dopamine (da) and noradrenaline (na) present in the venoms of honey bees of known ages and of da and 5-hydroxytryptamine (5-ht) in various species of vespid wasps. fluorescence histochemistry corroborated the presence of amines in honey bee venom glands and reservoirs and supported the quantitative results. the results show: (i) there is an age dependent variation in da and na levels ... | 1982 | 7164110 |
| antennal hygroreceptors of the honey bee, apis mellifera l. | antennal hygroreceptors of the honey bee, apis mellifera l., have been investigated electrophysiologically and the sensillum containing these receptors with sem. moist and dry hygroreceptors have been identified along with a thermal receptor in a specialized coeloconic sensillum. this sensillum comprises a cuticular, shallow depression (diameter; 4 micrometer) having a central opening (1.4-1.5 micrometer) and a mushroom-shaped protrusion (1.4-1.5 micrometer) from the opening. the head of the pro ... | 1982 | 7127426 |
| characteristics of retinal-binding proteins from the honeybee retina. | spectrophotometric studies were performed on two water soluble retinal-binding proteins isolated from honeybee retina. both pigments, b and c, absorb maximally at about 440 nm. pigment b is bleached by light to a photoproduct with lambda max at about 370 nm. this pigment reacts with hydroxylamine in the dark to form a product with an absorbance maximum at 360 nm, whereas with cyanoborohydride it reacts only in the light forming a product with lambda max at about 330 nm. irradiation of pigment c ... | 1982 | 7123861 |
| bee stings and acute tubular necrosis. | | 1982 | 7121662 |
| diffuse and local effects of light adaptation in photoreceptors of the honey bee drone. | intracellular recordings from drone photoreceptors were made by means of glass microelectrodes in superfused retinae. exposure of a small portion of a cell to white light decreased the amplitude of responses to a small stimulus subsequently applied at different sites of the photoreceptor cell, i.e. light adaptation occurred throughout the cell. after 7 min of darkness, the responses had completely recovered. when a violet light (404 nm) was used to adapt a small portion of the cell, the response ... | 1982 | 7101767 |
| the immune response to bee venom. comparison of the antibody response to phospholipase a2 with the response to inhalant antigens. | the antibody response to phospholipase a2 (pla2) was studied by using radiolabelled antigen-binding techniques for both igg and ige antibodies. the results are compared with results for antigen p1 from dermatophagoides pteronyssinus and for rye i from rye grass pollen. the response to pla2 differs from the response to the inhalant allergens in several ways: almost all exposed bee keepers produce igg antibodies to pla2; among the allergic bee keepers there was no quantitative correlation between ... | 1982 | 7085123 |
| [criteria for distinguishing sugar-adulterated honey from the natural]. | organoleptic and some of the chemical parameters of sugar honey were compared with those of nectar beehoney. rapid methods were devised to determine the main parameters characteristic of the soundness of beehoney. it was found that beehoney containing over 7% of saccharose may be regarded as feed, immature or sugar-falsified. in natural beehoney, the amount of saccharose, amylase (diastase) and invertase mainly depends on the degree of maturation and physiological status of the bee families duri ... | 2016 | 7072184 |
| laranja--an additional eye color gene in the snow series of apis mellifera l. | | 2006 | 7069193 |
| [respiration of the honey bee (apis mellifera l.) in varroa infestation]. | | 1982 | 7067619 |
| [changes in the functional characteristics of the compound eye of the honeybee after mutations interfering with the metabolism of tryptophan]. | the compound eye of worker honeybees with a genetic interruption of the ommochrome synthesis from tryptophan (mutations snow an laranja) showed a sharp increase in light sensitivity, more than 100-fold in snow and more than 10-fold in laranja with respect to the wild bee eye. peaks of the spectral sensitivity curves recorded using erg were shifted to 530 nm in snow and 550 nm in laranja while in the wild type it was at 545 nm. an unusual shape of the erg in the both mutants was shown to result f ... | 1982 | 7063085 |
| the content of adult primary care episodes. | in a research project undertaken to describe the content of adult primary care, episodes of illness for six common primary care conditions were analyzed: uri (upper respiratory infection, uti (urinary tract infection), hyp (hypertension), ap (abdominal pain), cp (chest pain), and pe (physical examination). data from the kaiser-permanente medical care program-oregon region were used in the project. episode of the six conditions studied tended to be of brief duration; at least half of the episodes ... | 2016 | 7058262 |
| the structure of melittin in the form i crystals and its implication for melittin's lytic and surface activities. | melittin from bee venom is water-soluble, yet integrates into membranes and lyses cells. each melittin chain consists of 26 amino acid residues and in aqueous salt solutions it exists as a tetramer. we have determined the molecular structure of the tetramer in two crystal forms grown from concentrated salt solutions. in both crystal forms the melittin polypeptide is a bent alpha-helical rod, with the "inner" surface largely consisting of hydrophobic sidechains and the "outer" surface consisting ... | 1982 | 7055627 |
| sensitivity to hymenoptera in adult males. | the authors studied the sera of 86 selected adult male office workers for ige antibodies to yellow jacket and honey bee venoms and to environmental inhalants and foods. structured histories provide information about the experiences of these men with the hymenoptera and other immunological information. three men (3%) gave a history of a local or general reaction to the hymenoptera but no antibodies were detected. ten men (12%) had ige antibodies to yellow jacket or honey bee venoms but none gave ... | 1982 | 7055341 |
| the pharmacology of microbracon venom. | 1. wasps of the genus microbracon generally paralyse larvae of lepidoptera. the wasp larva is exophagous on the paralysed host. the venom acts slowly and causes a flaccid paralysis. the venom of m. hebetor is extremely active in lepidoptera, less active in honeybee workers, much less active in locusts and mealworms and probably inactive in non-insects. 2. in lepidoptera and in locusts the venom presynaptically blocks the excitatory, but not the inhibitory, neuromuscular transmission. m. hebetor ... | 1982 | 6128151 |
| ionic and possible metabolic interactions between sensory neurones and glial cells in the retina of the honeybee drone. | this is a review paper that includes original calculations and figures. the drone retina is composed of two essentially uniform populations of cells, the photoreceptors and the glial cells. the photoreceptors contain many mitochondria but no glycogen has been detected; the glial cells contain much glycogen and very few mitochondria. the oxygen consumption of the photoreceptors in the dark is 20 microliters min-1 per g of retinal tissue and in response to a single flash of light there is an extra ... | 1981 | 7334321 |
| bee venom immunotherapy: clinical and immunologic observations. | in the present study the authors evaluated the usefulness of pure venom (pv) in the diagnosis and prevention of bee allergy in a group of 25 patients. in addition, they followed changes in specific ige and igg serum levels during the course of immunotherapy. they found excellent correlation between the clinical history and skin test reactivity to pv. the rast values correlated well with skin test but were somewhat less specific. they used a rather moderate schedule of desensitization by which a ... | 1981 | 7325420 |
| non-competitive inhibition of honeybee haemolymph pnp-alpha-d-glucosidase by chloramphenicol.--a study in vitro. | the haemolymph pnp-alpha-d-glucosidase activity of emerging worker bees shows a tendency towards negative cooperativity (n = 0.92). the relation between initial velocity and enzyme concentration is not exactly linear (bilogarithmic exponent = 0.91). between 25 degrees and 31 degrees c, the activation energy, ea = 38.2 kj/mol. chloramphenicol administered in vitro decreases the maximum velocity and re-establishes pure michaelian kinetics (n congruent 1.0). the hill coefficient for the binding of ... | 1981 | 6176196 |
| honey bee orientation: a backup system for cloudy days. | on cloudy days, honey bees are known to navigate to familiar food sources and orient their dances accurately. this capacity could be based on a magnetic compass sense, an ability to perceive the sun or patterns of polarized light through the clouds, or on the bees' memory of the diurnal course of the sun with respect to local landmarks. experiments pitting these alternatives against one another demonstrate that the navigational backup system of bees is based on memory. | 1981 | 17808669 |
| [antibody response pattern (specific ige and igg) of insect sting allergic patients in immunotherapy with venom preparations]. | the concentrations of venom specific ige (phadebas-rast) and igg (phadebas igg-rast) were monitored in sera of 22 patients with histories of systemic anaphylactic reactions following insect stings who underwent immunotherapy with venom extracts (bee venom and/or yellow jacket venom). analysis of the immunological parameters during immunotherapy revealed great individual variation in the degree of response concerning both specific ige and igg antibodies. nevertheless, four typical patterns of imm ... | 1981 | 7313646 |
| [a case of death from a bee sting]. | a case of severe shock due to bee poison with outcome in death is reported. the blood clotting picture was compromised owing to the presence in the circulation of heparin-like substances. a pharmacological study is proposed with a view to making a further contribution to the underlying cause of the disease. | 1981 | 7335181 |
| insect venom allergy: a prospective case study showing lack of correlation between immunologic reactivity and clinical sensitivity. | this case report demonstrates the lack of correlation between clinical sensitivity to insect venoms and immunologic reactivity as indicated by the presence of venom-specific igg. a 20-yr-old venom collector was monitored over a 3-yr period with measurements of venom-specific ige (skin test and rast) and venom-specific igg. in the first year of venom collection, multiple stings were tolerated with no reaction. in the second season, she had an anaphylactic reaction after a yellow jacket sting. sub ... | 1981 | 7299004 |
| bee sting of the esophagus. | | 1981 | 7278918 |
| [allergic reactions to honey bee and wasp venoms (author's transl)]. | | 1981 | 7301766 |
| properties of a filamentous virus of the honey bee (apis mellifera). | an ellipsoidal particle, measuring 450 x 150 nm, from honey bees comprises a nucleocapsid measuring 3000 x 40 nm, containing double-stranded dna with a molecular weight of approximately 12 x 10(6), which is coiled within a membrane. the buoyant densities in cscl of the whole particle, nucleocapsid, dna and dna with ethidium bromide are 1.28, 1.36, 1.71 and 1.61 g/ml, respectively. the particle contains about 12 proteins, with molecular weights ranging from 13,000 to 70,000, which are distributed ... | 1981 | 18635091 |
| lower eocene and paleocene gentianaceae: floral and palynological evidence. | lower eocene flowers with pistillipollenites macgregorii pollen represent the earliest megafossil evidence of the gentianaceae. the paleocene occurrence of p. macgregorii, the fossil's modern floral structure, and suggested trends in the evolution of pollen in the gentianaceae indicate a considerably earlier origin for the family. floral morphology typical of bee-pollinated flowers provides the earliest, albeit indirect, fossil evidence of bees. | 1981 | 17802576 |
| temporal and microclimatic partitioning of the floral resources of justicia aurea amongst a concourse of pollen vectors and nectar robbers. | the flowers of justicia aurea, morphologically characteristic of ornithophily, attracted a diverse array of foragers where they occurred as a dense stand in the tropical forests at la selva, costa rica, and so provided an arena for this study of competition and coexistence. two hummingbird species (phaethornis superciliosus and campylopterus hemileucurus) visited the flowers legally early in the morning, and defended the nectar resource; a third smaller bird (p. longuemareus) foraged for nectar ... | 1981 | 28310312 |
| the sting. melittin forms channels in lipid bilayers. | melittin, a toxin of bee venom, is a cationic polypeptide composed of 26 amino acids. the six residues of the c-terminal end are polar and 19 of the 20 residues of the n-terminal end are hydrophobic. exposure of the lecithin bilayer to melittin results in the formation of channels that are more permeable to anions that to cations. unilateral addition of melittin produces a voltage-dependent increase in membrane conductance when the side where the polypeptide is present in made positive but not w ... | 1981 | 6269667 |
| [immunologic studies in allergic children]. | igg-mediated allergic reaction can be provoked by inhalants (pollens, moulds, dust, animal danders), by food allergens, drugs and by hymenoptera venoms. the level of total-ige is higher in allergic patients than in normal children. the degree of clinical sensitivity can be evaluated by the estimation of allergen specific ige together with the patient's history and the results of the skin test. the allergy against bee venom is a suitable model for the immediate hypersensitivity. the assessment of ... | 1981 | 7286882 |
| ultrasonography in the staging of endometrial adenocarcinoma. | adenocarcinoma of the endometrium commonly presents at an early stage and is readily diagnosed by dilatation and curettage. ultrasound has not bee accurate in differentiating this malignant neoplasm from benign causes of uterine enlargement such as leiomyoma. in this study, the sonographic findings in 21 patients with adenocarcinoma of the endometrium were compared with the clinical and pathological findings. although no ultrasound criteria were diagnostic of carcinoma, there were statistically ... | 1981 | 7280250 |
| anaphylactic reaction after ingestion of local bee pollen. | a patient is presented who experienced an anaphylactic reaction after ingesting locally produced bee pollen to treat his spring hay fever. evaluation revealed the patient to be extremely sensitive to mesquite pollen, a major component of the bee pollen he ingested. passive transfer skin testing and neutralization techniques suggested that the mesquite pollen was the allergen which caused his anaphylactic reaction. four other allergic patients were known to have systemic reactions after taking be ... | 1981 | 7270986 |
| venom skin testing and alteration of rast levels. | since the availability of insect venoms for skin testing, recommendations suggest skin testing any person who has had a systemic reaction to a stinging insect with all venoms available for diagnostic purposes. considering the possibility for actual sensitization with such a procedure, 30 children had rast testing obtained before, immediately following and several weeks after skin testing with venoms for honey bee, wasp, yellow jacket and hornets. we found 53% of our patients had elevations in ei ... | 1981 | 7258743 |
| enzyme-like immunosorbent assay (elisa) for immunoglobulin g antibodies against insect venoms. | igg "blocking" antibodies were measured in patients receiving insect venom immunotherapy. the enzyme-linked immunosorbent assay (elisa) described herein was found to be sensitive and reproducible. results with elisa correlated well with values obtained with a radioimmunoassay and with inhibition of the release of histamine from sensitive basophils. also, specific antibody titers against phospholipase a and whole bee venom were correlated. serial determinations of venom-specific igg antibodies we ... | 1981 | 6166648 |
| [hyposensitization in bee and wasp allergy]. | | 1981 | 7303217 |
| [allergy to bee and wasp venoms. reaction forms, diagnosis and treatment]. | | 1981 | 7303216 |
| [treatment of allergic rhinosinusitis in children with bee venom]. | | 2006 | 7306272 |
| "bumble bee" cp, a juno replacement for alpha-, beta- and gamma-detection. | | 1981 | 7275597 |
| allergens in hymenoptera venom. vii. species specific reactivity to yellow jacket venoms. | venom from three species of yellow jacket, vespula maculifrons, v. squamosa and vespa crabro, was tested in direct and inhibition of rast with a panel of 39 sera from three regions of the u.s. v. squamosa venom was found to be missing at least one allergen present in v. maculifrons. patterns of reactivity were highly correlated with geography; reactivity with v. squamosa correlated with distribution of the species. sera fron california recognized vespa crabro; however, the insect is not found we ... | 1981 | 7258737 |