RNA splicing is one of the fundamental processes in gene expression in eukaryotes. Splicing of pre-mRNA is catalysed by a large ribonucleoprotein complex called the spliceosome, which consists of five small nuclear RNAs and numerous protein factors. The spliceosome is a highly dynamic structure, assembled by sequential binding and release ...

Multilocular cystic renal cell carcinoma (MCRCC) accounts for approximately 1 to 2% of all renal tumors. This tumor is currently classified as a subtype of clear cell RCC. Clinically, the majority of these tumors are incidentally found. Macroscopically, the tumor is well demarcated and consists of various-sized cysts. The fibrous ...

Schistosoma mansoni synthesizes glycoconjugates which interact with galectin-3, eliciting an intense humoral immune response. Moreover, it was demonstrated that galectin-3 regulates B cell differentiation into plasma cells. Splenomegaly is a hallmark event characterized by polyclonal B cell activation and enhancement of antibody production. Here, we investigated whether galectin-3 interferes with ...

Enteropathogenic Escherichia coli (EPEC) is an extracellular pathogen that alters many host subcellular components during its infectious processes. We have previously shown that EPEC hijacks a large assortment of host cell endocytic components and uses these proteins to form protruding structures called "pedestals" rather than triggering internalization of the bacteria. ...

The medial nucleus of the amygdala (MeA) is a complex component of the "extended amygdala" in rats. Its posterodorsal subnucleus (MePD) has a remarkable expression of gonadal hormone receptors, is sexually dimorphic or affected by sex steroids, and modulates various social behaviors. Dendritic spines show remarkable changes relevant for synaptic ...

Since cancer is one of the leading causes of death worldwide, there is an urgent need to find better treatments. Currently, the use of chemotherapeutics remains the predominant option for cancer therapy. However, one of the major obstacles for successful cancer therapy using these chemotherapeutics is that patients often do ...

Objective: The present study evaluated whether the treatment with the superoxide anion dismutase mimetic tempol prevents the worsening in hypertension and in myocardial vascular remodeling induced by ovariectomy in female spontaneously hypertensive rats (SHR). Methods: Experiments were performed in ten week old female SHRs randomly assigned to the groups: intact ...

Abstract This study used a qualitative approach to describe the experience of the first 3 months post-stroke in order to identify factors which facilitate successfully living with aphasia. Fifteen participants completed semi-structured interviews and self-perceived ratings of how successfully he or she was living with aphasia. A number of themes ...

Trehalose phosphate synthase (EC 2.4.1.15; TPS) is the crucial enzyme for the biosynthesis of trehalose, the main haemolymph sugar of insects, and therefore a potential insecticidal molecular target. In this study, we report the functional heterologous expression of Drosophila melanogaster TPS, the gene identification, full length cDNA cloning and functional ...

ABSTRACT The sudden decision by the National Heart, Lung, and Blood Institute of the National Institutes of Health to terminate the estrogen-progestogen therapy arm of the Women's Health Initiative (WHI) Study a decade ago now begs two questions: - has women's health after menopause been helped or harmed as a ...

Lymphomas encompass a broad spectrum of neoplasias. Traditionally it has been assumed that recurrent neoplasia, especially lymphoma, represents a relapse of the original clone. However, this concept has been challenged. Here we present an overview of novel perceptions regarding the clonal relationship of relapsing lymphoid neoplasms, i.e. precursor cell acute ...

Aims: Foreskin development begins at twelfth gestational week through a circular invagination of the ectoderm in the glandular periphery that grows ventrally and totally involves the glans around the twentieth gestational week. Studies of foreskin formation chronology and its histological constituents in human fetuses are rare. The objective of this ...

Abstract The study aimed to investigate (i) whether adolescents with Specific Language Impairment (SLI) and Autism plus Language Impairment (ALI) experience word-formation difficulties, and (ii) whether these two groups present with a similar language phenotype. The study investigated four groups using a 2 (language status) ×2 (autism status) design; adolescents ...

Conventionally, cells described in the stroma of the intestinal wall are fibroblasts/fibrocytes, mast cells, plasma cells, eosinophils, macrophages and, interstitial cells of Cajal (ICCs), the latter being considered as the pacemakers of gastrointestinal rhythmicity. Recently, a new type of stromal cell called telocyte (TCs) was found in various cavitary and ...

This retrospective study was carried out over 83 surgical cases at the distal portion of the fifth metatarsal, compromising the treatment of tailor's bunion, fifth metatarsal overload and the concomitant presence of both pathologies in some cases. Neuromas were founded under the fifth metatarsal head in 18 of the cases ...

Von Hippel-Lindau (VHL) disease is a highly penetrant autosomal dominant systemic malignancy that gives rise to cystic and highly vascularized tumors in a constellation of organs. Patients with VHL disease commonly present with hemangioblastomas in the central nervous system and the eye while other manifestations include pheochromocytoma, clear cell renal ...

Infection with Helicobacter pylori (H. pylori) strains is linked to an increased risk of inflammation and gastric cancer. To investigate the effects of H. pylori on biological characteristics of gastric epithelial cells SGC-7901, derived from human adenocarcinoma, morphological appearances of both the pathogen and these cells, as well as features ...

The objective of this review is to report evidence about the efficacy and potential of currently licensed drugs and new molecules beyond pre-clinical development for improving the chemotherapy of tuberculosis (TB). Rifapentine, a rifamycin with low minimum inhibitory concentration, long half-life and potent sterilizing activity in mice did not confirm ...

Vasoactive intestinal peptide (VIP) is a potent inductor of cyclooxygenase-2 (COX-2) expression in human prostate cancer cell lines. There are conflicting data regarding the role of COX-2 in the progression of this disease. Here we examined the expression of VIP receptors (VPAC1 and VPAC2) and COX-2 in prostate cancer specimens. ...

Tartu, Estonia. To assess the performance and feasibility of the introduction of the thin-layer agar MDR/XDR-TB Colour Test (Colour Test) as a non-commercial method of drug susceptibility testing (DST). The Colour Test combines the thin-layer agar technique with a simple colour-coded quadrant format, selective medium to reduce contamination and colorimetric ...

Summary.  Worldwide, 50-70 million subjects are infected with an hepatitis C virus (HCV) genotype 2, 3, 4, 5 or 6. In these patients, the combination of PEG-INF-α and ribavirin remains the currently approved standard-of-care treatment. The identification of different potential therapeutic targets in the HCV life cycle has led to the ...

Aims: the assessment of the human epidermic growth factor receptor 2 (HER2) is currently performed in most laboratories using two techniques: Fluorescence in situ hybridisation (FISH) and inmunohistochemistry (IHC), and novel methodology is being investigated continuously in the assessment of HER2, such as SISH, CISH, DNA chips, ELISA or real ...

Silicon is not generally considered an essential nutrient for mammals and, to date, whether it has a biological role or beneficial effects in humans is not known. The results of a number of studies suggest that dietary silicon supplementation might have a protective effect both for limiting aluminium absorption across ...

The UVB-irradiated cornea is damaged by oxidative stress. Toxic oxygen products induced by UVB radiation in the cornea are insufficiently removed by antioxidants, whose numbers decrease with increasing UVB irradiation. In addition, the UVB-irradiated cornea suffers from hypoxic conditions because damaged corneal cells cannot utilize oxygen normally, although the supply ...

Graphene oxide (GO), an intermediary of graphene nanosheets, possesses many unique properties. The present immunosensing platform utilizes innate fluorescence of GO, not demanding biomolecules labeled with fluorescent dyes used in other types of optical biosensors. Peroxidase-catalyzed polymerization of a dye (e.g., diaminobenzidine) directly quenches the innate fluorescence of GO, which ...

Mannitol dry powder for inhalation has been developed for the treatment of patients with cystic fibrosis. Two randomized, double-blind, multinational, 26-week, phase III trials (CF-301 and CF-302) examined the efficacy of inhaled dry powder mannitol in patients aged ≥6 years with cystic fibrosis who were receiving standard care (with a ...

Due to the polydispersity of nanocrystals and their unknown structures, in many cases it is difficult to conduct in-depth investigation on the sensing mechanism when nanocrystals are used as fluorescent probes; however, their smaller counterparts-structurally well-defined gold nanoclusters as sensors-have provided opportunities to do so. Herein, an example is provided ...

The incidence and prevalence of diabetes mellitus is globally increasing. The causes of this trend are relatively obvious in the case of type 2 diabetes. In contrast, in case of type 1 diabetes the amount of available data is continuously growing, but the causes are not so well defined. The ...

The Hungarian Diet and Nutritional Status Survey is the fourth in the row of the Hungarian national dietary surveys conducted by the Institute for Food and Nutrition Science. Aims: The present study was performed to provide valid, up-to-date data on energy and nutrient intakes and dietary habits of the Hungarian ...

The objektive of the research was to assess the health related quality of life and productivity of women with overactive bladder. Methods: A cross-sectional survey was performed in 5 outpatient centers. General health status (EQ-5D), disease-specific quality of life (King's Health Questionnaire) and productivity (Work Productivity and Activity Impairment) were ...

Lung infiltration still causes differential diagnostic difficulties, which may delay the start of definitive treatment. The examination of a 30-year-old man began due intermittent, remittent and permanent fever. Chest X-ray confirmed infiltration in the right upper lobe, which was accompanied by elevated CRP and physiological levels of procalcitonin. Most likely ...

Foreign object ingestion is a common reason for visiting an emergency department (ED), particularly for children. In recent years, internal injuries have been reported following unintentional ingestions of wire grill-cleaning brush bristles by both children and adults. A series of six cases from a single hospital system with two EDs ...

Vital statistics data suggest that the opioid pain reliever (OPR) methadone is involved in one third of OPR-related overdose deaths, but it accounts for only a few percent of OPR prescriptions. CDC analyzed rates of fatal methadone overdoses and sales nationally during 1999-2010 and rates of overdose death for methadone ...

Chagas disease, caused by infection with the parasite Trypanosoma cruzi, affects 8-11 million persons globally. In the endemic areas of Mexico, Central America, and South America, most infections are transmitted by triatomine insect (kissing bug) vectors. However, infection also can be acquired congenitally or through blood transfusion, organ transplantation, consumption ...

Since Robert Koch's 1882 discovery of Mycobacterium tuberculosis, substantial progress has been made in tuberculosis (TB) control. Nevertheless, in the latter part of the 20th century, a long period of neglect of both quality program implementation and research led to persistently high TB incidence rates and failure to develop new ...

This report updates the 1991 CDC recommendations for the management of hepatitis B virus (HBV)-infected health-care providers and students to reduce risk for transmitting HBV to patients during the conduct of exposure-prone invasive procedures (CDC. Recommendations for preventing transmission of human immunodeficiency virus and hepatitis B virus to patients during ...

The Unexplained Respiratory Disease Outbreak (URDO) working group is a multidisciplinary team composed of approximately 40 scientists from across CDC with expertise in infectious and noninfectious respiratory diseases. The URDO working group was formed in 2004 to streamline CDC response efforts to assist local, state, and international public health officials ...

Delirium is common after cardiac surgery and may be associated with long-term changes in cognitive function. We examined postoperative delirium and the cognitive trajectory during the first year after cardiac surgery. We enrolled 225 patients 60 years of age or older who were planning to undergo coronary-artery bypass grafting or ...

Severe aplastic anemia, which is characterized by immune-mediated bone marrow hypoplasia and pancytopenia, can be treated effectively with immunosuppressive therapy or allogeneic transplantation. One third of patients have disease that is refractory to immunosuppression, with persistent, severe cytopenia and a profound deficit in hematopoietic stem cells and progenitor cells. Thrombopoietin ...

The results of meta-analyses examining the relationship between vitamin D supplementation and fracture reduction have been inconsistent. We pooled participant-level data from 11 double-blind, randomized, controlled trials of oral vitamin D supplementation (daily, weekly, or every 4 months), with or without calcium, as compared with placebo or calcium alone in ...

The burden of type 2 diabetes mellitus (T2DM) among Indigenous children and adolescents is much greater than in non-Indigenous young people and appears to be rising, although data on epidemiology and complications are limited. Young Indigenous people living in remote areas appear to be at excess risk of T2DM. Most ...

To document the prevalence of Chlamydia trachomatis and Neisseria gonorrhoeae in the refugee population settling in Western Australia from 1 January 2006 to 31 December 2009 and make recommendations for future screening for chlamydia and gonorrhoea in the refugee population. A prevalence and quality assurance study of 2610 refugees aged ...

Estimates of glomerular filtration rate (GFR) that are based on serum creatinine are routinely used; however, they are imprecise, potentially leading to the overdiagnosis of chronic kidney disease. Cystatin C is an alternative filtration marker for estimating GFR. Using cross-sectional analyses, we developed estimating equations based on cystatin C alone ...

To estimate the prevalence of mental disorder in a representative sample of Aboriginal and Torres Strait Islander people in Queensland prisons. Cross-sectional assessment of mental health using the Composite International Diagnostic Interview (CIDI) and clinical interviews, conducted by Indigenous mental health clinicians who undertook specific training for this purpose, with ...

To undertake a systematic literature review to determine the scope, rationales, and evaluation foci of indigenous health curricula included in university-based professional training of health care service providers.Study design: Systematic review. We searched the Australasian Medical Index, ATSIhealth (Aboriginal and Torres Strait Islander Health Bibliography), CINAHL PLUS, MEDLINE, SCOPUS version ...

Friedreich ataxia (FRDA) is the most common inherited ataxia caused primarily by an intronic GAA.TTC triplet repeat expansion in the frataxin (FXN) gene. FXN RNA and protein levels are reduced in patients leading to progressive gait and limb ataxia, sensory loss, reduced tendon reflexes, dysarthria, absent lower limb reflexes, and ...

Specific transfer of (orthodenticle homeobox 2) Otx2 homeoprotein into GABAergic interneurons expressing parvalbumin (PV) is necessary and sufficient to open, then close, a critical period (CP) of plasticity in the developing mouse visual cortex. The accumulation of endogenous Otx2 in PV cells suggests the presence of specific Otx2 binding sites. ...

Amyotrophic lateral sclerosis (ALS) represents the most common motoneuron disorder in adulthood. It is characterized by selective degeneration of the motoneurons. About 10% of patients have a genetically determined ALS. Clinically, ALS is characterized by coexistence of signs of the first motoneuron, such as spasticity and hyperreflexia, as well as ...

The potassium channel Kv1.2 α-subunit is expressed in cerebellar Purkinje cell (PC) dendrites where its pharmacological inhibition increases excitability (Khavandgar et al., 2005). Kv1.2 is also expressed in cerebellar basket cell (BC) axon terminals (Sheng et al., 1994), where its blockade increases BC inhibition of PCs (Southan and Robertson, 1998a). ...

Cajal bands are cytoplasmic channels flanked by appositions where the abaxonal surface of Schwann cell myelin apposes and adheres to the overlying plasma membrane. These appositions contain a dystroglycan complex that includes periaxin and dystrophin-related protein 2 (Drp2). Loss of periaxin disrupts appositions and Cajal bands in Schwann cells and ...