BMC Research Notes

http://link.springer.com/journal/13104

List of Papers (Total 5,913)

Mapping of the spontaneous deletion in the Ap3d1 gene of mocha mice: fast and reliable genotyping

Background The mocha mouse carries a spontaneous deletion in the Ap3d1 gene, encoding the delta 1 subunit of the adaptor related protein complex 3, (Ap3d1), and subsequently lack the expression of functional AP-3. This leads to a deficiency in vesicle transport and storage, which affects neurotransmitter vesicle turnover and release in the central nervous system. Since the...

Purification and partial genome characterization of the bacterial endosymbiont Blattabacterium cuenoti from the fat bodies of cockroaches

Background Symbiotic relationships between intracellular bacteria and eukaryotes are widespread in nature. Genome sequencing of the bacterial partner has provided a number of key insights into the basis of these symbioses. A challenging aspect of sequencing symbiont genomes is separating the bacteria from the host tissues. In the present study, we describe a simple method of...

Impact of prior outpatient antibiotic use on mortality for community acquired pneumonia: a retrospective cohort study

Background The purpose of this study was to examine whether prior outpatient antibiotic use is associated with increased 30-day mortality, after adjusting for potential confounders, for those subsequently hospitalized with pneumonia. Methods A retrospective cohort study conducted at two tertiary teaching hospitals. Eligible subjects were admitted with a diagnosis of, and had a...

Vitamin K epoxide reductase complex subunit 1 (Vkorc1) haplotype diversity in mouse priority strains

BackgroundPolymorphisms in the vitamin K-epoxide reductase complex subunit 1 gene, Vkorc1, could affect blood coagulation and other vitamin K-dependent proteins, such as osteocalcin (bone Gla protein, BGP). Here we sequenced the Vkorc1 gene in 40 mouse priority strains. We analyzed Vkorc1 haplotypes with respect to prothrombin time (PT) and bone mineral density and composition...

HIV and AIDS-related knowledge among women in Iraq

Background Individuals who are aware of the risk of infection and perceive themselves to be at risk of infection are more likely to take action to prevent HIV infection. The aim of this study was to assess the knowledge of HIV/AIDS among Iraqi women. Methods A secondary analysis of the 2000 Multiple Cluster Indicator Survey (MICS) for Iraq was carried out to assess the extent of...

Probing of Actinobacillus pleuropneumoniae ApxIIIA toxin-dependent cytotoxicity towards mammalian peripheral blood mononucleated cells

Background Actinobacillus pleuropneumoniae, the causative bacterial agent of porcine pleuropneumonia, produces Apx toxins which belong to RTX toxin family and are recognized as the major virulence factors. So far, their target receptor(s) has not been identified and the disease cytopathogenesis remains poorly understood. Production of an active Apx toxin and characterization of...

Lack of anabolic response to skeletal loading in mice with targeted disruption of the pleiotrophin gene

Background In a previous study we showed, using the whole genome microarray approach, that pleiotrophin (PTN) expression was increased by 4-fold in response to mechanical loading (ML) in a good responder C57BL/6J (B6) mice. To address PTN role in mediating ML effects on bone formation, we first evaluated time course effects of ML on expression levels of PTN gene using real time...

Resveratrol prevents antibody-induced apoptotic death of retinal cells through upregulation of Sirt1 and Ku70

BackgroundTo determine whether resveratrol, a natural plant-derived drug, has protective effects against antibody-induced apoptosis of retinal cells in vitro and to provide insights on the mechanism of resveratrol protection.FindingsE1A.NR3 retinal cells pretreated with 40 μM resveratrol were grown in the presence of anti-recoverin (Rec-1), anti-enolase (Enol-1) antibodies, and...

Exploring the agreement between diagnostic criteria for IBS in primary care in Greece

Background Irritable Bowel Syndrome (IBS) is frequently diagnosed in primary care. Its diagnosis is based on diagnostic criteria but their use is limited in primary care. We aimed to assess the diagnostic agreement between the older (Manning's and Rome II) and the new (Rome III) criteria for the diagnosis of IBS in primary care in Greece. Methods Medical records of 5 Health...

Single nucleotide polymorphisms concordant with the horned/polled trait in Holsteins

Background Cattle that naturally do not grow horns are referred to as polled, a trait inherited in a dominant Mendelian fashion. Previous studies have localized the polled mutation (which is unknown) to the proximal end of bovine chromosome 1 in a region approximately 3 Mb in size. While a polled genetic test, Tru-Polled™, is commercially available from MetaMorphix Inc...

An Italian functional genomic resource for Medicago truncatula

Background Medicago truncatula is a model species for legumes. Its functional genomics have been considerably boosted in recent years due to initiatives based both in Europe and US. Collections of mutants are becoming increasingly available and this will help unravel the genetic control of important traits for many species of legumes. Findings Our report is on the production of...

Blind search for post-translational modifications and amino acid substitutions using peptide mass fingerprints from two proteases

Background Mass spectrometric analysis of peptides is an essential part of protein identification and characterization, the latter meaning the identification of modifications and amino acid substitutions. There are two main approaches for characterization: (i) using a predefined set of possible modifications and substitutions or (ii) performing a blind search. The first option is...

Gene expression in early and progression phases of autosomal dominant polycystic kidney disease

Background Little is known about the genes involved in the initial cyst formation and disease progression in autosomal dominant polycystic kidney disease (ADPKD); however, such knowledge is necessary to explore therapeutic avenues for this common inherited kidney disease. Findings To uncover the genetic determinants and molecular mechanisms of ADPKD, we analyzed 4-point time...

Using a commercially available DNA extraction kit to obtain high quality human genomic DNA suitable for PCR and genotyping from 11-year-old saliva saturated cotton spit wads

Background We sought to describe the integrity of human genomic DNA extracted from saliva saturated cotton spit wads stored at -20°C for approximately 11 years. 783 spit wad samples were collected from an ADHD sample population (Vermont Family Study) during 1996–2000. Human genomic DNA was extracted from the spit wads using a commercially available kit; QIAamp DNA Blood Midi Kit...

Synergistic effect of methyljasmonate and cyclodextrin on stilbene biosynthesis pathway gene expression and resveratrol production in Monastrell grapevine cell cultures

Background Plant cell cultures have been shown as feasible systems for the production of secondary metabolites, being the elicitation with biotic or abiotic stimuli the most efficient strategy to increase the production of those metabolites. Vitaceae phytoalexins constitute a group of molecules belonging to the stilbene family which are derivatives of the trans-resveratrol...

Is there an association between fibromyalgia and below-normal levels of urinary cortisol?

Background Adynamia in fibromyalgia (FM) may be an expression of a functional deficit of the hypothalamic-pituitary-adrenal axis and be associated with below-normal levels of urinary cortisol. Our aim was to demonstrate that urinary cortisol was lower in patients with FM than in healthy subjects. Findings We measured urinary cortisol levels for a sample of 47 women aged 29 to 64...

A set of vectors for introduction of antibiotic resistance genes by in vitro Cre-mediated recombination

Background Introduction of new antibiotic resistance genes in the plasmids of interest is a frequent task in molecular cloning practice. Classical approaches involving digestion with restriction endonucleases and ligation are time-consuming. Findings We have created a set of insertion vectors (pINS) carrying genes that provide resistance to various antibiotics (puromycin...

Bipotential mouse embryonic liver (BMEL) cells spontaneously express Pdx1 and Ngn3 but do not undergo further pancreatic differentiation upon Hes1 down-regulation

Background Liver-to-pancreas conversion offers new possibilities for β-cell engineering for type 1 diabetes therapy. Among conceivable sources of liver cells, we focused on BMEL cells. These untransformed mouse embryonic liver cells have been reproducibly isolated from different inbred mice strains and have the potential to differentiate into hepatocytes and cholangiocytes in...

SR proteins and the nonsense-mediated decay mechanism are involved in human GLB1 gene alternative splicing

Background The human GLB1 gene is known to give rise to two alternatively spliced mRNAs, which encode two different proteins: lysosomal β-galactosidase (β-gal) and elastin-binding protein (EBP). The β-gal transcript includes the 16 exons of the GLB1 gene. In the EBP transcript, exons 3, 4 and 6 are skipped, while exon 5 has a different reading frame. However, little is known on...

Two new splice variants in porcine PPARGC1A

Background Peroxisome proliferator-activated receptor γ coactivator 1α (PPARGC1A) is a coactivator with a vital and central role in fat and energy metabolism. It is considered to be a candidate gene for meat quality in pigs and is involved in the development of obesity and diabetes in humans. How its many functions are regulated, is however still largely unclear. Therefore a...

Sequence and structural evolution of the KsgA/Dim1 methyltransferase family

BackgroundOne of the 60 or so genes conserved in all domains of life is the ksgA/dim1 orthologous group. Enzymes from this family perform the same post-transcriptional nucleotide modification in ribosome biogenesis, irrespective of organism. Despite this common function, divergence has enabled some family members to adopt new and sometimes radically different functions. For...

The happy docs study: a Canadian Association of Internes and Residents well-being survey examining resident physician health and satisfaction within and outside of residency training in Canada

BackgroundFew Canadian studies have examined stress in residency and none have included a large sample of resident physicians. Previous studies have also not examined well-being resources nor found significant concerns with perceived stress levels in residency. The goal of "The Happy Docs Study" was to increase knowledge of current stressors affecting the health of residents and...

Ablation of prion protein immunoreactivity by heating in saturated calcium hydroxide

BackgroundPrions, the infectious agents that cause transmissible spongiform encephalopathies (TSEs), are relatively resistant to destruction by physical, enzymatic, and chemical treatments. Hydrolysis in boiling saturated calcium hydroxide (limewater) utilizes inexpensive chemicals to digest protein components of offal. The purpose of this work was to determine if incubating...

Determining the impact of alternative splicing events on transcriptome dynamics

BackgroundThe complete sequencing of the human genome and its subsequent analysis revealed a predominant role for alternative splicing in the generation of proteome diversity. Splice switching oligonucleotides (SSOs) are a powerful and specific tool to experimentally control alternative splicing of endogenous messenger RNAs in living cells. SSOs also have therapeutic potential to...

Genotypic and phenotypic diversity of Bacillus spp. isolated from steel plant waste

BackgroundMolecular studies of Bacillus diversity in various environments have been reported. However, there have been few investigations concerning Bacillus in steel plant environments. In this study, genotypic and phenotypic diversity and phylogenetic relationships among 40 bacterial isolates recovered from steel plant waste were investigated using classical and molecular...