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Lack of neuroprotection by heat shock protein 70 overexpression in a mouse model of global cerebral ischemia.

Heat shock protein 70 (Hsp70) is induced in cells by a variety of stress conditions, is known to be cytoprotective, and has been proposed to be neuroprotective during brain ischemia. A recently developed mouse model of 12-min global cerebral ischemia by bilateral common carotid artery occlusion with artificial ventilation and bilateral monitoring of regional cerebral blood flow by laser Doppler wa

DNA gel particles: Particle preparation and release characteristics

Aqueous mixtures of oppositely charged polyelectrolytes undergo associative phase separation, resulting in coacervation, gelation, or precipitation. This phenomenon has been exploited here to form DNA gel particles by interfacial diffusion. We report the formation of DNA gel particles by mixing solutions of DNA (either single-stranded (ssDNA) or double-stranded (dsDNA)) with solutions of cationic

Ca2+-binding and Ca2+-independent respiratory NADH and NADPH dehydrogenases of Arabidopsis thaliana.

Type II NAD(P)H:quinone oxidoreductases are single polypeptide proteins widespread in the living world. They bypass the first site of respiratory energy conservation, constituted by the type I NADH dehydrogenases. To investigate substrate specificities and Ca2+ binding properties of seven predicted type II NAD(P)H dehydrogenases of Arabidopsis thaliana we have produced them as T7-tagged fusion pro

An attempt at distinguishing subgroups of women with anorexia nervosa and bulimia nervosa by means of the Defense Mechanism Technique modified (DMTm) and the Eating Disorder Inventory (EDI).

In an attempt to identify diagnostically meaningful subgroups in a group of sixty women 18–34 years of age, 19 of them having a DSM-IV diagnosis of anorexia nervosa and 41 of bulimia nervosa, a hierarchical cluster analysis was performed on their data obtained from the Defense Mechanism Technique modified (DMTm) and the Eating Disorder Inventory (EDI). Variables also taken into account in the clus

Transnational Tendencies in Multinational Enterprises

Purpose – The purpose of this paper is to present a synthesis of transnational tendencies in multinational enterprises (MNEs), to theoretically analyse the result and to study whether managers in MNEs have experienced the predicted tendencies. Design/methodology/approach – The synthesis is based on an extensive literature review which is analysed by transaction cost economics. Identified tendenc

The R620W C/T polymorphism of the gene PTPN22 is associated with SLE independently of the association of PDCD1

The gene PTPN22 is located on chromosome 1p13 and encodes a protein tyrosine phosphatase called the lymphoid-specific phosphatase (Lyp). Lyp is expressed in lymphocytes, where it physically associates through its proline-rich motif ( called P1) with the SH3 domain of the protein tyrosine kinase Csk, an important suppressor of the Src family of kinases Lck and Fyn, which mediate TCR signaling. Ther

Evaluating a nonlinear asset pricing model on international data

The paper analyses the ability of a non-linear asset pricing model suggested by Dittmar [Dittmar, R.F., 2002. Non-linear pricing kernels, kurtosis preference, and the cross-section of equity returns. Journal of Finance 57, 369–403] to explain the returns on international value and growth portfolios. For comparison we use competing pricing models such as the ICAPM, the exchange rate risk augmented

Morphological and functional characterization of a rat vaginal smooth muscle sphincter

The aim of the present study was to gain information about adrenergic-, cholinergic- and nonadrenergic, non-cholinergic (NANC)- transmitter systems/mediators in the rat vagina, and to characterize its smooth muscles functionally. Tissue sections from vagina of Sprague Dawley rats were immunolabelled with antibodies against protein gene product 9.5 (PGP), synaptophysin (Syn), tyrosine hydroxylase (

Knowledge Links in High-Technology Industries: Markets, Networks, or Milieu? The Case of the Vienna Biotechnology Cluster

In recent years, the innovation process in biotechnology has become a subject of major interest to scholars from different disciplines. Despite an ever growing body of work, the nature of knowledge links and their particular geography remain a highly disputed issue. The purpose of this paper is to shed some light on this topic. We will develop a model of knowledge interactions distinguishing betwe

Revascularisation of renal artery stenosis caused by fibromuscular dysplasia: effects on blood pressure during 7-year follow-up are influenced by duration of hypertension and branch artery stenosis

Fibromuscular dysplasia (FMD) mainly affects renal arteries. Percutaneous transluminal renal angioplasty (PTRA) and surgery are effective treatments, but longtime follow-up is lacking. Retrospective follow-up for 7.0 +/- 4.7 years of 69 consecutive patients ( age 44 +/- 13 years) treated for hypertension due to FMD, 59 patients underwent PTRA and eight patients surgery. In two patients no PTRA was

Preliminary observations of sperm storage in Adalia bipunctata (Coleoptera : Coccinellidae): sperm size and number

Sperm storage in Adalia bipunctata (L.) (Coleoptera, Coccinellidae) was examined and compared between diapausing and non-diapausing females. We observed that non-diapausing females store on average 13,688 (+/-722, S.E.) sperm in their spermatheca and that every female examined had sperm in storage (n = 16). In contrast, most diapausing females had empty spermatheca and only two had sperm in storag

Female mating status and reproductive success in the great reed warbler: Is there a potential cost of polygyny that requires compensation?

1. Using data from a 9-year study of the great reed warbler Acrocephalus arundinaceus L. carried out in Sweden, I tested the main assumption of the polygyny threshold model (that there is a cost of polygyny) and the main prediction (that this cost is compensated for). The main question was whether a female that chose a mated male (secondary females) experienced the same fitness as a female that at

Fetal varicella-herpes zoster syndrome in early pregnancy: ultrasonographic and morphological correlation

We report a case of an intrauterine fetal infection by the varicella-herpes zoster virus following maternal varicella at 17 weeks' amenorrhea. Prenatal diagnosis of fetal infection was confirmed by serology and fetal damage by ultrasonography. Autopsy of the fetus showed multiorgan manifestation with disseminated foci of necrosis and microcalcifications, encephalitis and unilateral segmental skin

The role of rosiglitazone treatment in the modulation of islet hormones and hormone-like peptides: a combined in situ hybridization and immunohistochemical study

Rosiglitazone, peroxisome proliferator-activated receptor-gamma agonist, is an insulin sensitizing agent in peripheral tissues. This study investigated islet hormones and hormone-like peptides expression patterns in rosiglitazone treated streptozotocin (STZ)-diabetic rats by using immunohistochemistry and in situ hybridization methods. Animals were divided into four groups. I. Group: Intact contro

Telephone contact with patients in the year after a suicide attempt: does it affect treatment attendance and outcome? A randomised controlled study.

Ambivalence to treatment and repeated suicidal behaviour are well-known problems in suicide attempters. A randomised controlled study was performed to investigate the influence of repeated telephone contacts on treatment attendance, repetition of suicidal behaviour and mental health the year after a suicide attempt. SUBJECTS AND METHODS: One month after their suicide attempt 216 patients were rand

Importance of biofilm as food source for shrimps (Farafantepenaeus paulensis) evaluated by stable isotopes (∂13C and ∂15N)

Abstract The contribution of biofilm and artificial feeds for the growth of the pink shrimp Farfantepenaeus paulensis reared in tanks and net cages were evaluated by using stable isotope (δ13C and δ15N) analysis. In the net cage experiment, mass balance and mixing equations showed that the biofilm contribution to shrimp growth was over 49% of carbon and 70% of nitrogen. These data suggest that the

Hereditary prostate cancer: clinical characteristics and survival

PURPOSE: Hereditary prostate cancer accounts for 5% to 10% of all prostate cancer cases. We assessed clinical characteristics and survival in patients with hereditary prostate cancer MATERIALS AND METHODS: The study comprised 201 patients from 62 Swedish hereditary prostate cancer families and 402 controls with prostate cancer who were matched for age and calendar year at diagnosis, and the hospit