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Fat Body (0):
Recent article
Fat Body
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Abstract
We previously examined the functional roles of adipokinetic hormone in Manduca sexta L. (Lepidoptera: Sphingidae). Here we report the cloning of the full-length cDNA encoding the putative adipokinetic hormone receptor from the fat body of M. sexta. The sequence analysis shows that the deduced amino...
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PMID: 21529255
PDF is available here.
PDF is available here.
Current Biology (20)20 2010
dDOR is an EcR coactivator that forms a feed-forward loop connecting insulin and ecdysone signaling.
Abstract
We analyze here the in vivo function of DOR by studying flies mutant for Drosophila DOR (dDOR).
We show that dDOR is a novel coactivator of ecdysone receptor (EcR) that is needed during metamorphosis. dDOR binds EcR and is required for maximal EcR transcriptional activity. In the absence of dDOR, f...
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PMID: 20888228
PDF is available here.
PDF is available here.
Abstract
We demonstrated that AmJHEH has a negligible role in JH degradation, which, in the honey bee, is thus performed primarily by JHE. High AmJHEH levels in larvae and adults were related to the ingestion of high loads of lipids, suggesting that AmJHEH has a role in dietary lipid catabolism....
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PMID: 20230830
PDF is available here.
PDF is available here.
Abstract
We propose that following absorption, vicilins accumulate in the fat body, where they are partially degraded. These peptides are retained throughout the development of the insects and eventually are sequestered by the eggs. It is possible that accumulation in the eggs is a defensive strategy against...
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PMID: 20230826
PDF is available here.
PDF is available here.
Abstract
We investigated the incorporation of (15)N from (15)NH(4)Cl into amino acids using an in vitro tissue culture system. Fat body or midgut tissues from female mosquitoes were incubated in an Aedes saline solution supplemented with glucose and (15)NH(4)Cl for 10-40min. The media were then mixed with de...
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PMID: 20206632
PDF is available here.
PDF is available here.
Abstract
I and II, further referred to as SNA-I and SNA-II, are two ricin-related lectins from elderberry. SNA-I is a chimeric lectin composed of an A-chain with enzymatic activity and a B-chain with carbohydrate-binding activity, and therefore belongs to the group of type 2 ribosome-inactivating proteins. I...
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PMID: 20230823
PDF is available here.
PDF is available here.
Abstract
These results suggest that during the development of the 5th instar, the insect has natural regulating cycles of basal PO expression and activation, which could be related to the occurrence of natural infections. The differences in temporal patterns of activity and the effects of azadirachtin and ec...
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PMID: 20361973
PDF is available here.
PDF is available here.
Abstract
We also analyzed other hexamerin sequestering tissues like salivary gland, male accessory reproductive gland and ovary for the presence of hexamerin receptor. We found that the receptor in these tissues was similar in size and mode of activation to that of fat body hexamerin receptor, thus cementing...
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PMID: 20230828
PDF is available here.
PDF is available here.
Abstract
We analyzed the tissue-specific expression patterns in the silk gland, fat body, and midgut five days of fifth instar larvae during the development of B. mori. To verify the tissue-specific expression, analysis was conducted using quantitative Real-time RT-PCR and the highly expressed endogenous Act...
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PMID: 20663409
PDF is available here.
PDF is available here.
Abstract
The insect fat body is the main organ of the intermediate metabolism of insects. The majority of proteins of the haemolymph is synthesized in this tissue, which also presents the functions of lipids, carbohydrates and proteins storage. This tissue is also responsible for the synthesis of vitellogeni...
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PMID: 20206534
PDF is available here.
PDF is available here.
Abstract
We show that the abundance of Drosophila sestrin (dSesn) is increased upon chronic TOR activation through accumulation of reactive oxygen species that cause activation of c-Jun amino-terminal kinase and transcription factor Forkhead box O (FoxO). Loss of dSesn resulted in age-associated pathologies...
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PMID: 20203043
PDF is available here.
PDF is available here.
Abstract
We have newly identified three bacteria-induced genes from the silkworm Bombyx mori by quantitative reverse transcriptase-polymerase chain reaction. One of these, eukaryotic initiation factor 4E-1 (eIF4E-1), is assumed to encode an eIF4E family, which plays a role in the initiation of translation as...
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PMID: 20077574
PDF is available here.
PDF is available here.
Abstract
We bred a near-isogenic silkworm line, designated BC9, from the parental resistant strain NB and the susceptible strain 306, that is resistant to infection by nucleopolyhedrovirus. Proteomic techniques were employed to search for candidate genes playing a role in the antivirus response, based on dif...
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PMID: 21319714
PDF is available here.
PDF is available here.
Parazitologiya (44)4 2010
Abstract
The method of estimation of the biological age in non-feeding tick females by the level of adipose inclusions in the cells of the midgut and fat body is developed. In order to estimate the fat reserves in non-feeding females, alive ticks were dissected and fragments of their internal were vitally st...
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PMID: 21061588
PDF is available here.
PDF is available here.
Abstract
We show that the single Drosophila ortholog of the PXR and CAR nuclear receptors, DHR96, plays an essential role in TAG homeostasis. DHR96 mutants are sensitive to starvation, have reduced levels of TAG in the fat body and midgut, and are resistant to diet-induced obesity, while DHR96 overexpression...
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PMID: 19945405
PDF is available here.
PDF is available here.
Abstract
We conducted a comparative study of strain- and tissue-specific expressions of GST in the silkworm under infections by Bombyx mori nuclear polyhedrosis virus (BmNPV) and Bombyx mori densonucleosis virus (BmDNV) and under the stress of pesticides (insecticide and herbicide). BmDNV induced an increase...
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PMID: 19736773
PDF is available here.
PDF is available here.
Abstract
The widespread use of insecticides is known to cause resurgence in Nilaparvata lugens (Stål) (Hemiptera: Delphacidae) populations, a serious insect pest of rice, Orzya sativa L., crops in Asia. The current study investigated insecticide-induced changes in protein, RNA, and DNA levels in the ovary...
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PMID: 19736763
PDF is available here.
PDF is available here.
Abstract
We have determined that there are 20 putative A. aegypti NRs, some of which are predicted to have different isoforms. As the first step toward analysis of this gene family, we have established their expression within the two main reproductive tissues of adult female mosquitoes: fat body and ovary. A...
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PMID: 19183228
PDF is available here.
PDF is available here.
Abstract
The distribution of Nosema phyllotretae infection of Phyllotreta atra populations in Turkey is reported for the first time. In total, 48 of the 1668 beetles from 24 samples collected in five localities were infected by the parasite. Nosema infection was found in P. atra adults from only one of the f...
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PMID: 19598096
PDF is available here.
PDF is available here.
BMC Biochemistry (10)1 2009
Abstract
Inactivation of desat1 in oenocytes resulted in a 96% and 78% decrease in unsaturated hydrocarbons in males and females, respectively. Female pheromones (dienes) showed a decrease of 90%. Inactivation of desatF, which is female-specific and responsible for diene formation, resulted in a dramatic los...
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PMID: 19671131
PDF is available here.
PDF is available here.
Abstract
The effect of different diets [Tenebrio molitor L. (Coleoptera: Tenebrionidae) pupae; T. molitor pupae and Eucalyptus cloeziana plant; T. molitor and Eucalyptus urophylla plant and T. molitor pupae and guava plant (Psidium guajava)] on the morpho-physiological features of the fat bod...
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PMID: 19278855
PDF is available here.
PDF is available here.
Abstract
We identified key Drosophila candidate genes for lipid droplet regulation by RNA interference (RNAi) screening with an image segmentation-based optical read-out system, and show that these regulatory functions are conserved in the mouse. Those include the vesicle-mediated Coat Protein Complex I (COP...
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PMID: 19067489
PDF is available here.
PDF is available here.
Abstract
We studied the effects of five biogenic amines - norepinephrine, dopamine, octopamine, serotonin and histamine - on the locomotory activity and mobilization of lipids in the adult females of the firebug, Pyrrhocoris apterus (L.). We tested the hypothesis (1) whether the stimulation of walking activi...
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PMID: 18707014
PDF is available here.
PDF is available here.
Abstract
These results suggest that dietary intake may activate the insulin signaling pathway, including Akt, through bombyxin action in B. mori....
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PMID: 18760376
PDF is available here.
PDF is available here.
Abstract
The tasar silkworm, Antheraea mylitta Drury, Andhra local ecorace is an exclusive race of Andhra Pradesh. It is on the verge of extinction due to difficulty of acclimatisation at breeding and rearing stages. As an attempt to protect this race, a method of total indoor rearing has been done. In this...
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PMID: 19297987
PDF is available here.
PDF is available here.
Abstract
The fat body is the intermediary metabolism organ of insects and the main source of hemolymph components. In the current study, the microanatomy of Aedes aegypti (L., 1762) fat body was studied through scanning electron microscopy to observe the effects of blood feeding and aging. Three groups of fe...
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PMID: 19058635
PDF is available here.
PDF is available here.
Abstract
A new genus and species of microsporidia, Andreanna caspii n. gen., n. sp. is described from the mosquito, Ochlerotatus caspius (Pallas) based on ultrastructural morphology, developmental characteristics, and comparative sequence analyses of the small subunit (SSU) ribosomal DNA (rDNA). Parasite dev...
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PMID: 18700147
PDF is available here.
PDF is available here.
Abstract
We report an additional case of long-term persistence of Paranosema locustae in grasshoppers of Argentina. The pathogen was introduced from North America on rangeland at Loncopué, Neuquén province. Microsporidia were not detected in pre-introduction samples whereas infected grasshoppers were found...
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PMID: 18814843
PDF is available here.
PDF is available here.
Abstract
A full-length clone corresponding to attacin was isolated from a cDNA library made from fat body of immunized Hyphantria cunea larvae. This newly isolated attacin B shows characteristics different from those previously reported for attacin A. The two attacin cDNAs encode precursor proteins of 233 an...
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PMID: 18682300
PDF is available here.
PDF is available here.
Cell Metabolism (8)4 2008
Abstract
We demonstrate that Drosophila feeding behavior displays a 24 hr circadian rhythm that is regulated by clocks in digestive/metabolic tissues. Flies lacking clocks in these tissues, in particular in the fat body, also display increased food consumption but have decreased levels of glycogen and a high...
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PMID: 18840359
PDF is available here.
PDF is available here.
Abstract
We show SP1 expression and localization in differentiated fat body tissues using biochemical and immunohistochemistry scrutiny. Comparison of A. albistriga SP1 with that of other species with respect to amino acid composition and N-terminal sequences show that SP1 is a methonine-rich protein and its...
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PMID: 18780375
PDF is available here.
PDF is available here.
Current Biology (18)18 2008
Abstract
We identify here an additional negative regulator of Ft signaling in growth control, PCP, and appendage patterning, the Approximated (App) protein. We show that App encodes a member of the DHHC family, responsible for the palmitoylation of selected cytoplasmic proteins, and provide evidence that App...
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PMID: 18804377
PDF is available here.
PDF is available here.
Abstract
Fat body and midgut juvenile hormone esterase (JHE) and juvenile hormone epoxide hydrolase (JHEH) specific activities, and plasma JHE activity, were measured throughout the last stadium in two pairs (blocks) of lines of the cricket Gryllus assimilis, each pair of which had been artificially selected...
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PMID: 18634793
PDF is available here.
PDF is available here.
Acta Biologica Hungarica (59)3 2008
Abstract
We detected many undetermined protein fractions (6.5-260 kDa) in addition to well-defined protein fractions such as lipophorins and storage proteins in the tissues by using sodium dodecyl-sulphate polyacrylamide gradient gel electrophoresis. A marked quantitative change in the 45 kDa protein fractio...
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PMID: 18839695
PDF is available here.
PDF is available here.
Environmental Entomology (37)4 2008
Abstract
We used body volume, body mass, emergence day, and brood density as parameters in a multiple regression model to predict initial fat levels in female Douglas-fir beetles, Dendroctonus pseudotsugae Hopkins, on emergence from the host. The model explained 54% of the variation in fat reserves as determ...
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PMID: 18801248
PDF is available here.
PDF is available here.
Tissue & Cell (40)4 2008
Abstract
Scaphoideus titanus is the insect vector of flavescence dorée (FD), a yellow disease of grapevines. Observations on adult females and nymphs of S. titanus showed that this insect is associated with a complex microbial community. Ultrastructural analysis showed that the fat body, salivary glands and...
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PMID: 18272191
PDF is available here.
PDF is available here.
Abstract
The effect of pyriproxyfen, a juvenile hormone analog (JHA), on the pupation of S. litura was examined. A topical application of 100 mug JHA/larva on the newly ecdysed (0-day) sixth instar larvae resulted in more than 80% pupation, while most of the 1- or 2-day-old larvae similarly treated developed...
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PMID: 18618763
PDF is available here.
PDF is available here.
Abstract
We present the electron-microscopic identification of this rickettsial pathogen together with the first DNA sequence information for R. tipulae. The results of our 16S rDNA-based phylogenetic analysis demonstrate that the transfer to the order Legionellales is justified for R. tipulae. However, ther...
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PMID: 18374354
PDF is available here.
PDF is available here.
Brain Research Bulletin (76)3 2008
Abstract
Crested Ducks (CR) occasionally show intracranial fat bodies. Additionally, behavioral abnormalities such as motor incoordination can be observed. Here, it is shown that a behavioral test helps to identify CR that have a problematical fat body. The ducks were put on their backs, and the time require...
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PMID: 18498950
PDF is available here.
PDF is available here.
Abstract
We show here that Usp participates in the mechanism that regulates the progression of pupal development in Apis mellifera, as indicated by the observed pupal developmental delay in usp knocked-down bees. Knock-down experiments also suggest that the expression of regulatory genes such as ftz transcri...
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PMID: 18511064
PDF is available here.
PDF is available here.
Journal of General Virology (89)Pt 6 2008
Abstract
Thysanoplusia orichacea multicapsid nucleopolyhedrovirus (ThorMNPV) carrying an enhanced green fluorescent protein (EGFP) gene expression cassette (vThGFP) was used to study host-range mechanisms. Infection kinetics showed that vThGFP replication in Sf21 cells was too slow to suppress cell growth. W...
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PMID: 18474556
PDF is available here.
PDF is available here.
Abstract
We synthesized and sequenced cDNA fragments from a mixture of eight total RNA samples: fat body and hemocytes from larvae injected with killed bacteria, fat body, hemocytes, integument and trachea from naïve larvae, and fat body and hemocytes from wandering larvae. Using massively parallel pyrose...
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PMID: 18510979
PDF is available here.
PDF is available here.
Abstract
The effect of topical application of juvenile hormone (JH) over the lifetime of worker bees was evaluated in Apis mellifera, by measuring the area of the two cell types, trophocytes and oenocytes, found in the fat body. Topical application of 1 microl of a 1 microg/microl solution of JH in acetone t...
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PMID: 17382551
PDF is available here.
PDF is available here.
Insect Molecular Biology (17)3 2008
Abstract
We characterized the attacin encoding loci from a Bacterial Artificial Chromosome (BAC) library. The attacin genes are organized into three clusters. Cluster 1 contains two attacin (attA) genes located in head-to-head orientation, cluster 2 contains two closely related genes (attA and attB) located...
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PMID: 18477243
PDF is available here.
PDF is available here.
Journal of Cell Biology (181)4 2008
Abstract
We generated mutations in the single Drosophila melanogaster Vps34 orthologue, causing cell-autonomous disruption of autophagosome/autolysosome formation in larval fat body cells. Endocytosis is also disrupted in Vps34(-/-) animals, but we demonstrate that this does not account for their autophagy d...
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PMID: 18474623
PDF is available here.
PDF is available here.
Abstract
We used this model system to study the genetic regulation of autophagy. We performed a genetic screen to select P-element insertions that affect autophagy in the larval fat body. Light and electron microscopy of one of the isolated mutants (l(3)S005042) revealed the absence of autophagic vesicles in...
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PMID: 18285699
PDF is available here.
PDF is available here.
Abstract
We have created a Drosophila deletion mutant of vps15 and studied its role in autophagy and aggregate clearance. Homozygous Deltavps15 Drosophila died at the early L3 larval stage. Using GFP-Atg8a as an autophagic marker, we employed fluorescence microscopy to demonstrate that fat bodies of wild typ...
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PMID: 18326940
PDF is available here.
PDF is available here.
Molecular Immunology (45)10 2008
Abstract
We report the purification, characterization and cDNA cloning of an ML (MD-2-related lipid-recognition) protein from the tobacco hornworm Manduca sexta. The full-length cDNA of this M. sexta ML protein, named MsML-1, is 532bp with an open reading frame of 456bp that encodes a polypeptide of 151 amin...
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PMID: 18343500
PDF is available here.
PDF is available here.
Abstract
We describe the purification of recombinant Lsd1 and its reconstitution with lipids to form lipoprotein complexes suitable for functional and structural studies. Lsd1 in the lipid bound state is a predominately alpha-helical protein. Using lipoprotein complexes containing triolein it is shown that P...
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PMID: 18342616
PDF is available here.
PDF is available here.
Abstract
Unusual fatty acids with 24, 26, and 28 carbon atoms were found in triacylglycerols (TAGs) isolated from fat body tissue of bumblebee Bombus pratorum. The most abundant one was (Z,Z)-9,19-hexacosadienoic acid. Its structure was determined by mass spectrometry after derivatization with dimethyl disul...
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PMID: 18365265
PDF is available here.
PDF is available here.
Abstract
In insects, lipids are stored in the fat body, mainly as triacylglycerol (TAG). In Rhodnius prolixus, a hematophagous hemipteran, lipids are accumulated after blood meal to be used later on. In adult females, at the second day after feeding, the amount of TAG was 57+/-17 microg/fat body, it increase...
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PMID: 18395740
PDF is available here.
PDF is available here.
Abstract
We report sequence data and experimental evidence suggesting alternative functions for HEX 70a, besides its well-known role as an amino acid resource during metamorphosis. The hex 70a gene consists of 6 exons and encodes a 684 amino acid chain containing the conserved hemocyanin N, M, and C domains....
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PMID: 18472106
PDF is available here.
PDF is available here.
Abstract
We identified PGE2 in midgut, fat body, Malpighian tubules, and ovarioles of Anopheles albimanus (Aa) mosquitoes. Our data indicate that PGE2 synthesis in cultured midguts responds to the presence of two bacterial species, Micrococcus luteus and Klebsiella pneumoniae. The production of mRNA coding f...
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PMID: 18412259
PDF is available here.
PDF is available here.
Abstract
Abstract
We report that larvae and pupae of the Brazilian fireflies Aspisoma lineatum and Cratomorphus sp emit a continuous weak glow throughout the entire body during all stages. This luminescence is especially developed after feeding, ecdysis and in the pupal stage, gradually disappearing as the cuticle be...
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PMID: 18385887
PDF is available here.
PDF is available here.
Abstract
The ultrastructural cytochemistry study and the chemical analysis carried out to examine the fat body of workers of the basal Attini Cyphomyrmex rimosus and Mycetarotes parallelus and the derived Acromyrmex disciger and Atta laevigata revealed very electrondense protein granules of varied sizes and...
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PMID: 18272411
PDF is available here.
PDF is available here.
Cell Metabolism (7)4 2008
Abstract
We identified a target gene, target of brain insulin (tobi), that encodes an evolutionarily conserved alpha-glucosidase. Flies with lowered tobi levels are viable, whereas tobi overexpression causes severe growth defects and a decrease in body glycogen. Interestingly, tobi expression is increased by...
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PMID: 18396138
PDF is available here.
PDF is available here.
Journal of Experimental Biology (211)Pt 7 2008
Abstract
We examined freeze-tolerant larvae of the goldenrod gall fly, Eurosta solidaginis, to determine whether aquaporins are present and if their presence promotes freeze tolerance of specific tissues. Immunoblotting with mammalian anti-AQP2, -AQP3 and -AQP4 revealed corresponding aquaporin homologues in...
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PMID: 18344486
PDF is available here.
PDF is available here.
Aging Cell (7)2 2008
Abstract
We used the fruitfly Drosophila melanogaster to investigate the responses to DR of flies mutant for the transcription factor dFOXO, the main transcription factor target of IIS. We found that lifespan extension by DR does not require dFOXO. However, flies with dFOXO overexpressed in the adult fat bod...
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PMID: 18241326
PDF is available here.
PDF is available here.