Two approaches have been developed to detect GH abuse The first

Two approaches have been developed to detect GH abuse. The first is based on an assessment of the effect of exogenous recombinant human GH on pituitary GH isoforms and the second is based on the measurement

of markers of GH action. As a result, GH abuse can be detected with reasonable sensitivity and specificity. Testing for IGF-I and insulin is in its infancy, but the measurement of markers of GH action may also detect IGF-I usage, while urine mass spectroscopy has begun to identify the use of insulin analogues.”
“The objectives were to: (1) describe the chronology of early embryonic development from ovulation to entry into the uterus; and (2) to determine the timing of embryo migration to the left uterine horn when ovulation check details occurred from the right ovary. The experiment was conducted in Peru. Females (n = 132) were randomly assigned to 15 experimental groups. All females were mated to an intact male, given 50 mu g GnRH im (Cystorelin) and ovulation time determined by transrectal ultrasonography, conducted every 6 hours, starting 24 hours postmating. Animals were slaughtered at a specific intervals postovulation and reproductive tracts were recovered and subjected to oviductal and uterine flushing for females slaughtered between 1 and 6 days postovulation (dpo; Day 0 =

ovulation) and uterine flushing for females slaughtered from LY2157299 cell line 7 to 15 dpo for recovery of oocytes/embryos. Season of mating did not HSP inhibitor influence the interval from mating to ovulation (winter: 29 +/- 6 hours vs. summer: 30 +/- 6 hours; P = 0.49). Ovulation rates for females mated during winter and summer were 92% versus 100%, respectively (P = 0.05). Fertilization rates for winter and summer mated females were 72% and 82% (P = 0.29). Unfertilized ova were not retained in the uterine tube. All embryos collected were in the uterine tube ipsilateral to the side of ovulation between 1 and 5 dpo. Embryos reached the uterus on 6 dpo. Embryos began to elongate on 9 dpo; at this time, 83% of embryos derived from right-ovary ovulations were collected from the left uterine horn.

Embryos occupied the entire uterine cavity by 10 dpo. In conclusion, we characterized early embryo development and location of embryo during its early developmental stages in alpaca. This was apparently the first report regarding chronology of embryo development and migration to the left horn in alpaca which merits further investigation regarding its role in maternal recognition of pregnancy. (c) 2013 Elsevier Inc. All rights reserved.”
“Potential mediating factors in the pathway to initiation of osteoporosis treatment following a fragility fracture were evaluated. Patients’ perceived need for treatment, mediated by their perception of bone density test results, was central to treatment initiation. Interventions focusing on patients’ perceptions of need and test results may improve treatment rates.

After analyzing the evidence, we hypothesize the need to prime th

After analyzing the evidence, we hypothesize the need to prime the immune system to restore natural tolerance against a-synuclein in Parkinson disease, including at the same time B and T cells, so that T cells can reprogram microglia activation to a beneficial pattern and B cell/IgG can help neurons cope with the pathological forms of a-synuclein.”
“The role played

by apoptosis in the homeostasis of effector cells of the innate immune system is unclear. Serine protease inhibitor 6 (Spi6) is an inhibitor of granzyme B (GrB) that protects cytotoxic T lymphocytes of the adaptive PD0325901 solubility dmso immune system from apoptosis. To determine whether Spi6 also protects cells of the innate immune system from self-inflicted damage we have examined invariant NKT (iNKT) cells. Spi6-deficient iNKT cells harbored increased levels of GrB after TCR stimulation with the PBS-57 glycolipid Ag and were susceptible to apoptosis. The increased apoptosis of Spi6 knock-out (KO) iNKT cells lead to a complete loss in the production of IL-4 and IFN-gamma by Spi6 KO iNKT cells after PBS-57 challenge. The increased activation-induced apoptosis resulted in impaired survival and a decreased clonal burst size of Spi6 KO iNKT cells, which could be corrected

by GrB deficiency. However, the clonal burst of Spi6 KO iNKT cells after TCR-independent activation with lymphocytic choriomeningitis virus was not affected. Our findings demonstrate that Spi6 protects cytotoxic cells of the innate immune system from GrB-mediated self-inflicted triggered by the recognition of Ag. Fosbretabulin Cytoskeletal Signaling inhibitor The Journal of Immunology, 2010, 185: 877-883.”
“Suppressor of cytokine signalling (SOCS) proteins are inhibitors of cytokine signalling pathways. Three SOCS genes, SOCS-1, 2 and 3, have been identified and their sequences analyzed in an economically important fish, rainbow trout (Oncorhynchus mykiss, Walbaum). In general, these

three SOCS molecules are well conserved especially in the SRC homology 2 and the SOCS domains, with sequence identities between trout and mammals ranging from 41 to 42, 50 to 51, and 58 to 61% for SOCS-1, 2 and 3, respectively. The identities within fish species are slightly higher, with sequence identities between trout and the other fish species at 44-46, 64-70, and 71-76% for SOCS-1, 2 and 3, respectively. All the SOCS-1, as well as all the SOCS-2 or 3 molecules from different species are grouped together in phylogenetic tree analysis with high bootstrap support, with the fish molecules in each type grouping closely together. The expression of the trout SOCS-1, 2 and 3 genes are detectable by real-time PCR in all the eight tissues studied; the gills, skin, muscle, liver, spleen, head kidney, intestine and brain. SOCS-1 is highly expressed in intestine, head kidney, spleen, gills and skin. SOCS-2 is highly expressed in brain, head kidney, muscle, spleen, gills, skin and intestine.

“Targeting particular mRNAs for degradation is a fascinati

“Targeting particular mRNAs for degradation is a fascinating approach to achieve gene silencing. Here we describe a new gene silencing tool exploiting a cell-penetrating, nucleic-acid hydrolyzing, single-domain antibody of the light-chain variable domain, 3D8 VL. We generated a synthetic library of 3D8 VL on the yeast surface by randomizing residues located in one of two beta-sheets. Using 18-bp single-stranded

nucleic acids as target substrates, including the human Her2/neu-targeting sequence, we selected 3D8 VL variants that had similar to 100-1000-fold Dibutyryl-cAMP higher affinity and similar to 2-5-fold greater selective hydrolyzing activity for target substrates than for off targets. 3D8 VL variants efficiently penetrated into living cells to be accumulated in the cytosol and selectively decreased the amount of target sequence-carrying mRNAs as well as the proteins encoded

by these mRNAs with minimal effects on off-target genes. In particular, one 3D8 VL variant targeting the Her2 sequence showed Crenigacestat clinical trial more efficient downregulation of Her2 expression than a small-interfering RNA targeting the same Her2 sequence, resulting in apoptotic cell death of Her2-overexpressing breast cancer cells. Our results demonstrate that cell-penetrating 3D8 VL variants with sequence-selective, nucleic-acid-hydrolyzing activity can selectively degrade target mRNAs in the cytosol, providing a new gene silencing tool mediated by antibody.”
“Objective-To determine diagnostic accuracy of using erythrocyte indices and polychromasia to identify regenerative anemia in dogs.\n\nDesign-Retrospective and prospective cross-sectional study.\n\nAnimals-4,521 anemic dogs.\n\nProcedures-CBC results

obtained between July 2002 and July 2008 by use of an automated laser-based flow cytometric hematology analyzer from dogs with Hct values <= 35% were retrieved. Sensitivity, specificity, accuracy, and predictive values of using erythrocyte indices and polychromasia to identify regeneration were determined, with a reticulocyte count > 65,000 reticulocytes/mu L considered the gold standard. Similarly, 134 blood BMS-777607 order samples from anemic dogs were analyzed prospectively with an in-house electrical impedance analyzer.\n\nResults-Of 4,387 dogs with samples analyzed retrospectively, 1,426 (32.5%) had regenerative anemia. Of these, 168 (11.8%) had macrocytic hypochromic anemia. High mean cell volume and low mean cell hemoglobin concentration had low sensitivity (11%), high specificity (98%), and moderate accuracy (70%) when used to identify regenerative anemia. Use of polychromasia alone had an accuracy of 77%, and use of polychromasia combined with a high RBC distribution width (RDW) had an accuracy of 79%. Results obtained with the in-house analyzer were similar.\n\nConclusions and Clinical Relevance-Results suggested that most regenerative anemias in dogs were not macrocytic hypochromic.

Methods: On the basis of epidemiological investigation, 60 subjec

Methods: On the basis of epidemiological investigation, 60 subjects with YDC and 50 with gentle constitution (GC) were selected according to the pertinent criteria. From each subject, 8 mL of fasting venous blood was drawn at 8:00-9:00 in the morning, with the serum separated by centrifugation 3 000 r/min for 5 min and preserved at -70 degrees C in a freezer. Serum levels of corticosterone, cortisol, adrenocorticotrophic hormone (ACTH), Selleck Momelotinib cyclic adenosine monophosphate (cAMP), cyclic guanosine monophosphate (cGMP), free triiodothyronine (FT3), free thyroxine (FT4), throtropic stimulation hormone, interleukin 1 beta (IL-1 beta) and interleukin 2 (IL-2) were detected by double-antibody sandwich ELISA; cAMP/cGMP ratio

was calculated, and the difference between the two constitutions in terms of these indexes was analyzed. Results: Serum FT3 was 4.16 +/- 1.38 pmol/L in subjects with YDC, which was higher than that in subjects with GC (3.71 +/- 0.55 pmol/L), but levels of cortisol (124.58 +/- 45.36 ng/mL), ACTH (58.92 +/- 14.55 pg/mL), cGMP (66.00 +/- 18.02 pmol/mL) and FT4 (12.33 +/- 3.12 pmol/L) in YDC were lower than those in GC (13.43 +/- 2.31 pmol/L),

showing significant difference (P<0.05). Conclusion: YDC is related to some extent with the disturbances in the hypothalamus-pituitary-adrenal axis, hypothalamus-pituitary-thyroid axis, cyclic nucleoside system and immune function.”
“In this paper, an exact procedure for the reconstruction of multiple concentrated damages on a straight beam is proposed. The concentrated damages are modelled as Dirac’s delta distributions capturing the effect of Entinostat Epigenetics inhibitor concentrated stiffness reduction. The presented procedure requires the knowledge of vibration mode shape displacements

together with the relevant natural frequency, for the reconstruction of each damage position and intensity. The exact solution of the inverse problem at hand has been pursued by exploiting the analytical structure of the explicit closed form expressions provided for the vibration mode NU7441 shapes of beams in the presence of an arbitrary number of cracks. The proposed procedure is first presented under the hypothesis that the displacements of a vibration mode shape are known at the cracked cross-sections. In this case, explicit closed form expressions of the crack severities are formulated. A further simple reconstruction approach allows the evaluation of the exact positions and intensity of the concentrated damages, if displacements of two vibration mode shapes are known at a single cross-section between two consecutive cracks. The proposed reconstruction procedure is applied for the identification of multiple cracks on a free-free beam where measurements have been simulated by means of a finite element analysis.”
“The yolk sac tumor is one of the most common malignant germ cell tumors in young children and typically occurs in the gonads.

Methods: Fifty-four children, 21 human immunodeficiency virus

\n\nMethods: Fifty-four children, 21 human immunodeficiency virus-infected and 33 human immunodeficiency virus-uninfected, mean ages 3.73 and 4.05 years (P = 0.68), respectively, selleck chemicals admitted to a tuberculosis hospital in Cape Town, South Africa with severe forms of tuberculosis were studied approximately 1 month and 4 months after commencing antituberculosis treatment. Blood specimens for analysis were drawn in the morning, 45 minutes, 1.5, 3.0, 4.0 and 6.0 hours after dosing. Rifampin concentrations were determined by liquid chromatography tandem mass spectrometry. For two sample comparisons of means, the Welch version of the t-test was used; associations between variables

were examined by Pearson correlation and by multiple linear regression.\n\nResults: The children received a mean rifampin Tubastatin A solubility dmso dosage of 9.61 mg/kg (6.47 to 15.58) body weight at 1 month and 9.63 mg/kg (4.63 to 17.8) at 4 months after commencing treatment administered as part of a fixed-dose formulation designed for paediatric use. The mean rifampin area under the curve 0 to 6 hours after dosing was 14.9 and 18.1 mu g/hour/ml (P = 0.25) 1 month after starting treatment in human immunodeficiency virus-infected and human immunodeficiency virus-uninfected children,

respectively, and 16.52 and 17.94 mu g/hour/ml (P = 0.59) after 4 months of treatment. The mean calculated 2-hour rifampin concentrations in these human immunodeficiency virus-infected and human immunodeficiency virus-uninfected children were 3.9 and 4.8 mu g/ml (P = 0.20) at 1 month after the start of treatment and 4.0 and 4.6 mu g/ml (P = 0.33) after 4 months of treatment. These values are considerably less than the suggested lower limit for 2-hour rifampin concentrations in adults of 8.0 mu g/ml and even 4 mu g/ml\n\nConclusion: Both human

immunodeficiency virus-infected and human immunodeficiency virus-uninfected children with tuberculosis have very low rifampin serum concentrations after receiving standard rifampin dosages similar to those used in adults. Pharmacokinetic studies of higher dosages of rifampin are urgently needed in children to assist in placing the dosage of rifampin used in childhood on a more scientific foundation.”
“A LY2835219 mouse taxonomic study was carried out on a cellulase-producing bacterium, strain G21(T), isolated from mangrove soil in Xiamen, Fujian province, China. Cells were Gram-negative, slightly curved rods, motile with a single polar flagellum. The strain grew at 15-40 degrees C and in 0.5-10% (w/v) NaCl. Phylogenetic analysis based on 16S rRNA gene sequences revealed that strain G21(T) belonged to the genus Vibrio and formed a clade with Vibrio furnissii ATCC 350116(T) (97.4 % sequence similarity), V. fluvialis LMG 7894(T) (97.1%) and V. ponticus CECT 5869(T) (96.1%).

After 120-min oxygen and glucose deprivation, a change in the SHG

After 120-min oxygen and glucose deprivation, a change in the SHG response to the polarization was measured. Then, by using a three-dimensional PSHG biophysical model, we correlated this finding with the structural changes occurring in the microtubules

under oxygen and glucose deprivation. To our knowledge, this is the first study performed in living neuronal cells that is based on direct imaging of axons and that provides the means of identifying the early symptoms of ischemia. Live observation of this process might bring new insights into BAY 80-6946 understanding the dynamics and the mechanisms underlying neuronal degeneration or mechanisms of protection or regeneration.”
“The objective of this study was to estimate the prevalence of undiagnosed impaired glucose homeostasis in hypertensive subjects in the general population. The most reasonable screening strategy for glucose disorders was also assessed. We carried out an oral glucose

tolerance test for 1106 hypertensive subjects aged 45 to 70 years without previously diagnosed diabetes or cardiovascular disease. Blood pressure, waist circumference, body mass index, and plasma lipids were also measured. Type 2 diabetes was found in 66 (6%) of the subjects, impaired glucose tolerance in 220 (20%), and impaired fasting glucose in 167 (15%). If we had carried out an oral glucose EX 527 nmr tolerance test only for those hypertensive subjects with fasting GANT61 manufacturer plasma glucose >= 5.6 mmol/L, we would have missed approximate to 40% of the patients with impaired glucose tolerance. The International Diabetes Federation criteria of metabolic syndrome identified 96% of all the cases of type 2 diabetes and 88% of all the cases of impaired glucose tolerance. The prevalence of central obesity was alarming: 90% of the women and 82% of

the men had a waist circumference >= 80 cm or >= 94 cm, respectively. Impaired glucose homeostasis and central obesity are common in hypertensive subjects. An oral glucose tolerance test is reasonable to carry out at least for the hypertensive subjects with metabolic syndrome. Weight stabilization is an important goal to treat hypertensive patients.”
“Urinary tract infection (UTI) is one of the most common bacterial infections. UTI is primarily caused by extraintestinal pathogenic Escherichia coil (ExPEC) from the patients’ own fecal flora. The ExPEC often belong to phylogroups 82 and D, the groups which include potent human ExPEC isolates causing UT!, bacteremia, and meningitis. The external sources of these ExPEC in the human intestine are unknown. The food supply may transmit ExPEC to humans. However, evidence of this hypothesis is limited. To assess this hypothesis, the objective of our study was to investigate the presence of ExPEC related virulence genes in E. coli isolates from UTI patients, community-dwelling humans, meat, and production animals.

Evidence synthesis: Ten HRC syndromes have been described tha

\n\nEvidence synthesis: Ten HRC syndromes have been described that are Selleck 17-AAG inherited with an autosomal dominant trait. Eight genes have already been identified (VHL, MET, FH, FLCN, TSC1, TSC2, CDC73, and SDHB). These HRC syndromes involve one or more RCC histologic subtypes and are generally bilateral and multiple. Computed tomography and magnetic resonance imaging are the best imaging techniques for surveillance and assessment of renal lesions, but there are no established guidelines for follow-up after imaging. Except for hereditary leiomyomatosis RCC

tumours, conservative treatments favour both an oncologically effective therapeutic procedure and a better preservation of renal function.\n\nConclusions: HRC involves multiple clinical manifestations, histologic subtypes, genetic alterations, Apoptosis Compound Library and molecular pathways. Urologists should know about HRC syndromes in the interest of their patients and families. (C) 2010 European Association of Urology. Published by Elsevier B.V. All rights reserved.”
“Background The Integrated Relaxation Pressure (IRP) is the esophageal pressure topography (EPT) metric used for assessing the adequacy of esophagogastric junction (EGJ) relaxation in the Chicago Classification of motility disorders. However, because the IRP value is also influenced by distal esophageal contractility, we hypothesized that its normal limits should vary with different patterns of contractility. Methods Five hundred and twenty

two selected EPT studies were used to compare the accuracy of alternative analysis paradigms to that of a motility expert (the gold standard). Chicago Classification metrics were scored manually and used as inputs for MATLAB (TM) programs that utilized either strict algorithm-based interpretation (fixed abnormal IRP threshold of 15 mmHg) or a classification and regression tree (CART) model that selected variable IRP thresholds depending on the associated esophageal contractility. Key Results The sensitivity of the CART model for achalasia (93%) was better than

that of the algorithm-based approach (85%) on account of using variable IRP thresholds HER2 inhibitor that ranged from a low value of >10 mmHg to distinguish type I achalasia from absent peristalsis to a high value of >17 mmHg to distinguish type III achalasia from distal esophageal spasm. Additionally, type II achalasia was diagnosed solely by panesophageal pressurization without the IRP entering the algorithm. Conclusions & Inferences Automated interpretation of EPT studies more closely mimics that of a motility expert when IRP thresholds for impaired EGJ relaxation are adjusted depending on the pattern of associated esophageal contractility. The range of IRP cutoffs suggested by the CART model ranged from 10 to 17 mmHg.”
“Background & aims: The prognostic value of nutritional status and/or lean and fat mass assessed by dual-energy X-ray absorptiometry (DEXA) has been widely analyzed, in both alcoholics and non-alcoholics.

Within the same framework, we also derive an optimal general test

Within the same framework, we also derive an optimal general test given a generic evolutionary scenario as a null model. All formulas are relatively simple and can be computed very fast, making it feasible to apply them to genome-wide sequence data. A simulation study showed that, generally, the tests proposed are more consistently powerful than standard tests like Tajima’s D. We further illustrate the method 4-Hydroxytamoxifen with real data from a QTL candidate region in

“In the classical pathway, the opposing activities of guanylyl cyclases (GC) and phosphodiesterases (PDE), and the effect of the cGMP-dependent protein kinase (cGK) on its targets, determine the biological responses to NO signaling. Here we tested the hypothesis that vascular dysfunction may be due to altered expression and activity of these effectors of NO signaling. Every other set of rat second order mesenteric resistance arteries (MA) were ligated, resulting in chronic low flow (LF) in the upstream MA1 and

high flow (HF) in the adjacent MA1 without tissue ischemia. eNOS and iNOS were up-regulated in HF and LF MA1, respectively, in the sub-acute phase (four days) of vascular remodeling. The Day4 HF/LF MA1s were under increased control of NO as indicated by reduced sensitivity to the vasoconstrictor phenylephrine and its normalization with the NOS antagonist L-NAME. PDE5 mRNA and protein were also significantly selleck chemicals up-regulated in the HF/LF MA1 with no change in sGC or PKG1, an effect that was dependent upon NO synthesis. The PDE5 inhibitor Sildenafil was several-fold more powerful in relaxing the HF/LF MA1s, and pre-treatment with Sildenafil uncovered an increased responsiveness

of HF/LF MA1s to the NO donor DEA/NO. We conclude that induction of PDE5 de-sensitizes this systemic resistance artery to sustained NO signaling under chronic HF/LF. Treatment with PDE5 antagonists, in contrast to NO donors, may more specifically and effectively increase blood flow to chronically hypo-perfused tissues. (C) 2009 Elsevier Inc. All rights reserved.”
“Metabolic reprogramming has been proposed to be a hallmark of cancer, yet a systematic characterization of the metabolic pathways active in transformed cells is currently lacking. Using mass spectrometry, we measured the consumption and release ( CORE) profiles of 219 metabolites VX-770 nmr from media across the NCI-60 cancer cell lines, and integrated these data with a preexisting atlas of gene expression. This analysis identified glycine consumption and expression of the mitochondrial glycine biosynthetic pathway as strongly correlated with rates of proliferation across cancer cells. Antagonizing glycine uptake and its mitochondrial biosynthesis preferentially impaired rapidly proliferating cells. Moreover, higher expression of this pathway was associated with greater mortality in breast cancer patients. Increased reliance on glycine may represent a metabolic vulnerability for selectively targeting rapid cancer cell proliferation.

0 nA/cm(2) and a breakdown voltage of 5 2 MV/cm at 1 0 mu A/cm(2)

0 nA/cm(2) and a breakdown voltage of 5.2 MV/cm at 1.0 mu A/cm(2) were obtained at a temperature of 150 degrees C with a deposition rate of 18.0 nm/min. (C) 2010 The Japan Society of Applied Physics”
“With increasing interest in treating osteoarthritis at its earliest stages, it has become important to understand the mechanisms by which the disease progresses across a joint. Here, second harmonic generation (SHG) microscopy, coupled with a two-dimensional spring-mass network model, was used

to image and investigate the collagen meshwork architecture at the cartilage surface surrounding osteoarthritic lesions. We found that minor weakening of the collagen meshwork leads to the bundling of fibrils at the surface under normal loading. This bundling appears to be an irreversible step in the degradation process, as the stress concentrations drive the progression S3I-201 datasheet of damage, forming larger bundles and cracks that eventually form lesions. (C) 2011 Elsevier Ltd. All rights reserved.”
“The increasing usage and

the persistence of polyester polyurethane (PU) generate significant sources of environmental pollution. The effective and environmental friendly bioremediation techniques for this refractory waste are in high demand. In this study, three novel PU degrading bacteria were isolated from farm soils and activated sludge. Based upon 16S ribosomal RNA gene sequence blast, their identities were determined. Particularly robust activity was observed in Pseudomonas putida; it spent 4 days to degrade 92 % of Impranil DLNTM for supporting its growth. The optimum temperature and pH for DLN removal by P. putida were 25 A degrees C and 8.4, respectively. Sonidegib in vivo The degradation and transformation of DLN investigated by Fourier transformed infrared spectroscopy show the decrease in ester functional group and the emergence of amide group. The polyurethanolytic activities were both presented in the extracellular fraction and in the cytosol.

Esterase activity was detected in the cell lysate. A 45-kDa protein bearing polyurethanolytic activity was also detected in the extracellular medium. This study presented high PU degrading activity of P. putida and demonstrated its responsible enzymes during the PU degradation process, which could be applied in the bioremediation and management of plastic wastes.”
“Poly(3-hydroxybutyrate) (PHB) and poly(l-lactic acid) (PLLA) were individually cross-linked with dicumyl peroxide (DCP) (0.25-1 wt %) by reactive melt processing. The cross-linked structures of the polymer gel were investigated by nuclear magnetic resonance (NMR) and Fourier transform infrared (FTIR) spectroscopies. The size of the polymer crystal spherulites, glass transition temperature (T-g), melting transition temperature (T-m), and crystallinity were all decreased as a result of cross-linking. Cross-linking density ((e)) was shown to increase with DCP concentration.

Proinflammatory cytokines, chemokines and adhesion molecules, whi

Proinflammatory cytokines, chemokines and adhesion molecules, which regulate the sequential recruitment of leukocytes, are frequently observed in tumor microenvironment. These early desmoplastic changes could stimulate fibroblasts and endothelial buy FDA approved Drug Library cell division and produce components for tissue remodeling and neovascularization, ultimately promoting neoplastic processes. In this review article we overview the current understanding of the role of chronic inflammation

in neoangiogenesis, tumor initiation, promotion, and progression.”
“PI 3-kinase enhancer A (PIKE-A) is critical for the activation of Akt signalling, and has an essential function in promoting cancer cell survival. However, its physiological functions are poorly understood. Here, we show that PIKE-A directly associates with both signal transducer and activator of transcription 5a (STAT5a) and prolactin (PRL) receptor, which is essential for PRL-provoked STAT5a activation and the subsequent gene transcription. Depletion of PIKE-A in HC11 epithelial cells diminished PRL-induced STAT5 activation and cyclin D1 expression, resulting in profoundly impaired cell proliferation in vitro. To confirm the function of PIKE-A in PRL signalling in vivo, we generated PIKE

knockout (PIKE-/-) mice. PIKE-/- mice displayed a severe lactation defect that was characterized by enhanced apoptosis and impaired proliferation of mammary epithelial cells. At parturition, STAT5 activation and cyclin D1 expression were substantially reduced in the mammary epithelium of PIKE-/- mice. The defective mammary gland development in PIKE-/- mice was rescued by overexpression of a mammary-specific cyclin D1 transgene.

These data establish a critical function for PIKE-A in mediating PRL functions. The EMBO Journal (2010) 29, 956-968. doi: 10.1038/emboj.2009.406; Published online 14 January learn more 2010″
“In recent years, glycerol has become an attractive carbon source for microbial processes, as it accumulates massively as a by-product of biodiesel production, also resulting in a decline of its price. A potential use of glycerol in biotechnology is the synthesis of poly(3-hydroxypropionate) [poly(3HP)], a biopolymer with promising properties which is not synthesized by any known wild-type organism. In this study, the genes for 1,3-propanediol dehydrogenase (dhaT) and aldehyde dehydrogenase (aldD) of Pseudomonas putida KT2442, propionate-coenzyme A (propionate-CoA) transferase (pct) of Clostridium propionicum X2, and polyhydroxyalkanoate (PHA) synthase (phaC1) of Ralstonia eutropha H16 were cloned and expressed in the 1,3-propanediol producer Shimwellia blattae. In a two-step cultivation process, recombinant S. blattae cells accumulated up to 9.8% +/- 0.4% (wt/wt [cell dry weight]) poly(3HP) with glycerol as the sole carbon source.