Furthermore, two additional recombinant viruses were constructed by mutating from ATG to CTG the initiation codons of gE (gEctg) or both gE and gM (gEctg + gMctg), causing lack of expression of gE or both gE and gM, respectively. A fourth mutant virus was constructed to specify the gEctg + gD Delta ct mutations. The replication properties of these viruses were compared to those of a newly constructed recombinant virus unable to express UL20 due to alteration of the two initiation codons of UL20 (UL20ctgctg). All recombinant viruses were constructed by using the double-Red, site-directed mutagenesis system implemented on the HSV-1(F) genome cloned into a bacterial artificial chromosome. The gEctg,

gEctg + gMctg, gD Delta ct, and gEctg + gD Delta ct viruses produced viral plaques on African monkey kidney cells (Vero), as well as other cells, that were on average approximately 30 to 50% smaller than SU5402 mouse those produced by the wild-type virus HSV-1(F). In contrast, the UL20ctgctg virus produced very small plaques containing three to five cells, as reported previously for the Delta UL20 virus lacking the entire UL20 gene. Viral replication kinetics of intracellular and extracellular viruses

revealed that all recombinant viruses produced viral titers similar to those produced by the wild-type HSV-1(F) virus intracellularly and extracellularly at late times postinfection, with the exception see more of the UL20ctgctg and Delta UL20 viruses, which replicated more than two-and-a-half logs less efficiently than HSV-1(F). AZD2014 solubility dmso Electron microscopy confirmed that all viruses, regardless of their different gene

mutations, efficiently produced enveloped virions within infected cells, with the exception of the UL20ctgctg and Delta UL20 viruses, which accumulated high levels of unenveloped virions in the cytoplasm. These results show that the carboxyl terminus of gD and the full-length gE, either alone or in a redundant manner, are not essential in cytoplasmic virion envelopment and egress from infected cells. Similarly, gM and gE do not function alone or in a redundant manner in cytoplasmic envelopment and virion egress, confirming previous findings.”
“Objective: To estimate the probability of live birth, adverse treatment outcome, and extremes of ovarian response at different antral follicle count (AFC) cutoff levels in a large prospective cohort of women undergoing IVF treatment.\n\nDesign: Prospective study.\n\nSetting: University-based assisted conception unit.\n\nPatient(s): A total of 1,012 consecutive subjects of all ages undergoing their first cycle of assisted reproductive techniques.\n\nIntervention(s): Transvaginal three-dimensional ultrasound assessment and venipuncture in the early follicular phase of the menstrual cycle.\n\nMain Outcome Measure(s): Live birth rate, poor ovarian response, and ovarian hyperstimulation syndrome (OHSS).

We further selected a panel of 13 CGIs demonstrating increased DNA methylation with disease progression and validated this panel in an independent cohort of 20 benign prostate tissues, 16 PCa, and 8 aggressive CRPCs. These results warrant clinical evaluation in larger cohorts to help distinguish indolent PCa Selleck SYN-117 from advanced disease.”
“Current research exploring the molecular basis of memory focuses mainly on proteins despite

recent genomic studies reporting the abundant transcription of non-protein-coding RNA (ncRNA). Although ncRNAs are involved in a diverse range of biological processes, they are particularly prevalent within the nervous system, where they contribute towards the complexity and function of the mammalian

brain. In this review, we apply recent advances in ncRNA biology to predict a critical CBL0137 ic50 role for ncRNAs in the molecular mechanisms underlying memory formation and maintenance. We describe the role of ncRNAs in regulating the translation, stability, and editing of mRNA populations in response to synaptic activity during memory formation and the role of ncRNAs in the epigenetic and transcriptional programs that underlie long-term memory storage. We also consider ncRNAs acting as an additional avenue of communication between neurons by their intercellular trafficking. Taken together, the emerging evidence suggests a central role for ncRNAs in memory formation and provokes novel research directions in this field. NEUROSCIENTIST 14(5):434-445, 2008. DOI: 10.1177/1073858408319187″
“In patients with rectal cancer, the status of regional or mesorectal lymph nodes is central to both tumor staging and predicting

local and distant recurrence. The importance of mesorectal lymph nodes in rectal cancer should inform treatment decisions around pre-operative diagnostic imaging, surgical techniques, pathologic assessment, and the use of radiation therapy. J. Surg. Oncol. 2009; 99: 256-259. (C) 2008 Wiley-Liss, Inc.”
“Background: Although uncommon, iron deficiency (ID) occurs in breastfed AG-881 infants. The regular provision of iron may prevent ID.\n\nObjective: The objective was to test the feasibility and effectiveness of 2 modalities of providing iron (medicinal iron or iron-fortified cereal) to breastfed infants. The study tested the hypothesis that regular provision of iron improves iron status of breastfed infants without adverse effects.\n\nDesign: In this prospective, randomized, open-label trial, breastfed infants received on a regular basis either medicinal iron (n = 48) or an iron-fortified fruit-cereal combination (n = 45) from 4 to 9 mo or no intervention (control group; n = 59). The interventions provided 7.0-7.5 mg ferrous sulfate/d. Infants were enrolled at 1 mo and were followed to 2 y.

2 +/- 0.5, and 14.3 +/- 2.5 vs 6.4 +/- 0.7 mL/kg.min, respectively).\n\nConclusions: The ratio of insulin-stimulated glucose versus AA clearance was decreased 5.4-fold in diabetic pigs, which was caused by

a 3.6-fold decrease in glucose clearance and a 2.0-fold increase in non-essential AA clearance. In parallel with the Randle concept (glucose – fatty acid cycle), the present data suggest the existence of a glucose and non-essential AA substrate interaction in diabetic pigs whereby reduced insulin-stimulated glucose clearance seems to be partly compensated by an increase in non-essential AA clearance whereas essential AA are preferentially spared from an increase VX-770 in vivo in clearance.”
“Background: The archaeal exosome is formed by a hexameric

RNase PH ring and three RNA binding subunits JNK inhibitor price and has been shown to bind and degrade RNA in vitro. Despite extensive studies on the eukaryotic exosome and on the proteins interacting with this complex, little information is yet available on the identification and function of archaeal exosome regulatory factors.\n\nResults: Here, we show that the proteins PaSBDS and PaNip7, which bind preferentially to poly-A and AU-rich RNAs, respectively, affect the Pyrococcus abyssi exosome activity in vitro. PaSBDS inhibits slightly degradation of a poly-rA substrate, while PaNip7 strongly inhibits the degradation of poly-A and poly-AU by the exosome. The exosome inhibition by PaNip7 appears to depend at least partially on its interaction with RNA, since mutants of PaNip7 that no longer bind RNA, inhibit the exosome less strongly. We also show that FITC-labeled PaNip7 associates with the exosome in the absence of substrate RNA.\n\nConclusions: Given the high structural homology between the archaeal and eukaryotic proteins, Dorsomorphin datasheet the effect of archaeal Nip7 and SBDS on the exosome provides a model for an evolutionarily conserved exosome control mechanism.”
“Background: Social anxiety disorder (SAD) is one of the most common psychiatric disorders worldwide. Cognitive behavioral therapy (CBT) is an effective

treatment option for patients with SAD. In the present study, we examined the efficacy of group CBT for patients with generalized SAD in Japan at 1-year follow-up and investigated predictors with regard to outcomes.\n\nMethods: This study was conducted as a single-arm, naturalistic, follow-up study in a routine Japanese clinical setting. A total of 113 outpatients with generalized SAD participated in group CBT from July 2003 to August 2010 and were assessed at follow-ups for up to 1 year. Primary outcome was the total score on the Social Phobia Scale/Social Interaction Anxiety Scale (SPS/SIAS) at 1 year. Possible baseline predictors were investigated using mixed-model analyses.\n\nResults: Among the 113 patients, 70 completed the assessment at the 1-year follow-up. The SPS/SIAS scores showed significant improvement throughout the follow-ups for up to 1 year. The effect sizes of SPS/SIAS at the 1-year follow-up were 0.

v.) at 6 h, 24 h or daily (for 7 days, beginning at day 1). At 1, 3 and

8 weeks, in vivo and in vitro lung mechanics and histology (light and electron microscopy), collagen and elastic fibre content, cytokines in bronchoalveolar lavage fluid and the expression of matrix metalloproteinase (MMP)-9 and -2 were measured.\n\nIn vivo (static elastance and viscoelastic pressure) and in vitro (tissue elastance and resistance) lung mechanics, alveolar find more collapse, cell infiltration, collagen and elastic fibre content and the expression of MMP-9 and MMP-2 were increased in ALI at 1 week. Methylprednisolone led to a complete resolution of lung mechanics, avoided fibroelastogenesis and the increase in the expression of MMP-9 and MMP-2 independent of steroid treatment design.\n\nThus, early short-term, low-dose methylprednisolone is as effective as prolonged therapy in acute lung injury.”
“Mycobacterium leprae DNA gyrases carrying various mutations,

previously described in clinical strains, were investigated for quinolone susceptibility by inhibition of supercoiling and DNA cleavage Vorinostat promotion. We demonstrated that the gyrA mutations leading to G89C or A91V confer fluoroquinolone resistance whereas the gyrB mutation leading to D205N does not.”
“The peroxisome proliferator-activated receptor superfamily (PPARs) comprises a class of nuclear receptors with significant effects in regulating multiple cellular pathways. Much research and clinical interest has surrounded the PPAR-gamma isoform because of its key role in the transcriptional regulation of metabolic pathways and the efficacy of thiazolidinediones, the most clinically used PPAR-gamma agonist, in the management

of type 2 diabetes mellitus. In this review, we discuss the pathogenic role of PPAR-gamma in experimental models of kidney disease, clinical trials of thiazolidinediones in diabetic and non-diabetic kidney disease, recent safety concerns surrounding PPAR-gamma agonists and reflect on their potential use in ‘orphan’ kidney diseases. Copyright (C) 2009 S. Karger AG, Basel”
“Intramuscular fat (IMF) content has been identified as an important factor in determining the quality of pork. Previous studies have suggested that IMF deposition may be associated with the presence of the halothane (HAL) gene. This study aimed to this website evaluate the effect of the HAL gene on IMF deposition in crossbred pigs of commercial lines, which were killed at a slaughterhouse under official inspection. The genotype of the HAL gene was determined by polymerase chain reaction-restriction fragment length polymorphism analysis. IMF was analyzed from longissimus dorsi samples. Among all animals analyzed, 42.36% were of the HalNN genotype and 57.64% were of the HalNn genotype. The average IMF content of all samples was 2.14%. Variation in IMF between genotypes was evaluated by analysis of variance.

“
“Background: Right to left

shunt and regional hypoventilation (reduced ventilation/perfusion ratio (V-A/Q)) have different effects on the curve relating inspired oxygen P1O2) to oxygen saturation measured by pulse oximetry (SpO(2)) and can JAK inhibitor be derived non-invasively from measurements Of SpO(2) and inspired oxygen pressure (P1O2) using complex models of gas exchange. We developed a simpler computerised “slide-rule” method of making these derivations.\n\nAims: To describe the slide-rule method and determine agreement between measurements derived with this and a more complex algorithm.\n\nMethods: Series Of P1O2 versus SpO(2) data points obtained during 43 studies in 16 preterm infants with bronchopulmonary dysplasia were analysed. Percentage shunt and the degree of right shift (kPa) of the P1O2 versus SpO(2) curve compared SB202190 nmr with the oxyhaemoglobin dissociation curve (a measure of V-A/Q were determined for

each dataset with both methods, and the results were compared using the method of Bland and Altman.\n\nResults: The computer slide-rule method produced results for all 43 datasets. The more complex model could derive results for 40/43 datasets. The mean differences (95% limits of agreement) between the two methods for measurements of shunt were -1.7% (-6.5 to +3.5%) and for measurements of right shift were 0,3 kPa (-2.9 to +3.6 kPa).\n\nConclusion: The slide-rule method was reliable for deriving shunt and right shift (reduced V-A/Q) of the P1O2 versus SpO(2) curve when compared with the more complex algorithm. see more The new method should enable wider clinical application of these measurements of oxygen exchange.”
“The expansion of intensive livestock farming, especially the construction of mega stables, is highly contested in the Netherlands. In this context, local authorities try

to make decisions about situating mega stables on their territory by balancing out various interests. However, many become entangled in escalating processes and lose the trust of both citizens and farmers. On the basis of an evaluation of a decision-making process about a mega stable project in a small Dutch town, this article analyzes why distrust occurs and what local authorities could do to prevent this. In-depth interviews and participant observations show how different configurations of stakeholders became fixed in their own convictions, values, and fears, resulting in mutual annoyances, misunderstandings, blaming, and, finally, distrust. The more information public officials provided to dispel doubts about the mega stables, the more citizens started to distrust the local government. Trust is not enhanced by more information and transparency alone. The paper concludes that, once a decision-making process escalates and distrust arises, it is very difficult to revitalize the process and regain trust.

Methods: In the payoff time framework, the possibility of losing quality-adjusted life-years (QALYs) because of revascularization failure is conceptualized as an investment that is eventually recouped over time, on average. Using this framework, BMS-754807 chemical structure we developed simple mathematical forms that define relationships between the following: perioperative probability of stroke (P); annual stroke rate without revascularization (r(0)); annual stroke rate after revascularization, conditional on not having suffered perioperative stroke (r(1)); utility levels assigned to the asymptomatic state (u(a))

and stroke state (u(s)); and mortality rates (). Results: In patients whose life expectancy is below a critical life expectancy (CLE=P/(1-P)r(0)-r(1)), the investment will never pay off, and revascularization will lead

to loss of QALYs, on average. CLE is independent of utilities assigned to the health states if a rank ordering exists in which u(a) > u(s). For clinically relevant values (P = 3%, r(0) = 1%, r(1) = 0.5%), the Quisinostat purchase CLE is approximately 6.4 years, which is longer than published guidelines regarding patient selection for revascularization. Conclusions: In managing asymptomatic carotid disease, the payoff time framework specifies a CLE beneath which patients, on average, will not benefit from revascularization. This formula is suitable for clinical use at the patient’s bedside and can account for patient variability, the ability of clinicians who perform revascularization, and the particular revascularization technology that is chosen.”
“Cimetidine (cim) is one of the most potent histamine H-2-receptor antagonists for inhibiting excessive acid secretion caused by histamine; it has been hypothesized that the therapeutic Selleckchem Tipifarnib effects can be related to its interactions

with metal ions. Raman spectra of the solid cim with Co(II), Cu(II), Ni(II) and Zn(II) metal complexes show that they can adopt two different structures: one is octahedral and the other, with Zn(II), is probably tetrahedral. The octahedral structure appears to be distorted both by the different metal ions as well as by the different anion present. The study was extended to very dilute solutions (ppm range) by using the surface-enhanced Raman scattering (SERS) technique, mimicking the physiological concentrations of cim and its metal complexes. SERS spectra suggest that, upon the binding of cim to silver colloids, the formation of stable 1 : 2 cim-metal complexes is excluded, the formation of 1 : 1 adduct appearing more probable; in this product the metal reaches its total coordination shell by complexion with water molecules. To better explain the binding mechanism of cim to a metal (Ag) surface, we performed theoretical B3LYP calculations on cim alone as well as on cim bonded to an Ag-2 metal cluster in presence of water, observing a sufficiently good agreement between experimental and theoretical wavenumbers. Copyright (C) 2010 John Wiley & Sons, Ltd.

“
“Background The present study was aimed at assessing the behavioural and physiological responsiveness of three children with profound intellectual and multiple disabilities to a set of sensory stimuli. Methods Eighteen

items, believed’ by clinicians to be appropriate for routine interventions, were presented to the participants and responsiveness was assessed in terms of: (i) consistent behavioural and electrodermal reactions and (ii) biphasic changes in heart rate. Results Results were twofold. First, all participants showed frequent consistent physiological reactions but rare consistent behavioural ones. Second, all participants showed biphasic changes in heart rate, pointing to the possibility PLX3397 ic50 of different appraisals (novelty and pleasantness) of most of the presented items.

Conclusions Data here presented may have implications for the development and the emotional well-being of individuals with profound intellectual and multiple disabilities in that it suggests that reactions to, and potential appraisals of, sensory stimuli may occur despite the lack of consistent observable behaviours.”
“Due to the wide spectrum of biological activities, Smoothened Agonist Stem Cells & Wnt inhibitor Chamerion angustifolium L. as medicinal plant is used for the production of food supplements. However, it should be kept in mind that quality (biological activity) of the herb depends on its geographic origin, the way of raw material WH-4-023 cost preparation or extraction and chemotype. The purpose of this study was to evaluate and compare the compositions of volatile, nonvolatile

compounds and antioxidant activities of C. angustifolium grown in Kaunas Botanical Garden after the introduction from different locations in Lithuania. The compositions of fresh and air-dried samples were compared. The profile of volatile compounds was analyzed using headspace solid phase microextraction coupled with GC/MS. trans-2-Hexenal (16.0-55.9% of all volatiles) and trans-anethole (2.6-46.2%) were determined only in the dried samples, while cis-3-hexenol (17.5-68.6%) only in fresh samples. Caryophyllenes (alpha- and beta-) were found in all analyzed samples, contributing together from 2.4% to 52.3% of all volatiles according to the origin and preparation (fresh or dried) of a sample. Total amount of phenolic compounds, total content of flavonoids and radical scavenging activity (using 2,2-diphenyl-1-picrylhydrazyl (DPPH)) were determined using spectrophotometric assays. The variation of total phenolic compounds content was dependent on the sample origin, moreover, drying reduced amount of phenolics 1.5-3.5 times. The DPPH free radical scavenging activity was in the range of 238.6-557.1 mg/g (expressed in rutin equivalents) in the fresh samples and drastically reduced to 119.9-124.8 mg/g after drying. The qualitative analysis of phenolic compounds in the aqueous methanolic extracts of C angustifolium was performed by means of HPLC with UV detection.

Such tonic immune responses in the GALT may allow control SCH727965 Cell Cycle inhibitor of the metabolic activity and balance of the gut microbial communities.”
“Background To ensure the highest technical performance, speed, safety, excellent control and to improve competitive performance, a successful regulation of competitive anxiety is necessary. Therefore,

it seems crucial to identify factors influencing competitive anxiety of adolescent athletes. Research suggests that people reporting high quality of life are more capable to cope with stressful and challenging situations than others. The aim of this study was to investigate the impact of quality of life, the involvement of parents in sports career and coach’s leadership behaviour on competitive anxiety in Winter Youth Olympic Games participants.\n\nMethods During the first Winter Youth Olympic Games 2012 in Innsbruck/Austria, 662 (316

women) participants completed questionnaires and single items to assess quality of life, coach’s leadership behaviour, parental involvement in sports career and competitive anxiety.\n\nResults Multiple regression analysis revealed positive influences GW3965 of high quality of life and useful coach instruction on competitive anxiety.\n\nConclusions The relationship between quality of life, coach behaviour and competitive anxiety in young elite athletes competing at the first Winter Youth Olympic Games should be buy Z-IETD-FMK considered in long-term programmes for reducing competitive stress.”
“Using aCGH, we have identified a pericentromeric deletion, spanning about 8.2 Mb, within 16p11.2-p12.2 in a patient with developmental delay (DD) and dysmorphic features. This deletion arose de novo, and is flanked by segmental duplications. The proposita was the only child of healthy nonconsanguineous parents, born after an uneventful pregnancy, at 40 weeks gestation, by normal delivery. She was referred to us at age 3(10)/(12) years for evaluation of DD and absent speech. On examination, there were a flat face; low-set, posteriorly rotated cars; high-arched palate; hypotonic face; right single palmar crease;

long, thin fingers; and a sacral dimple. Her height was at the 50th centile, weight at the 25th, and OFC at the 30th. Results of DNA FraX, HRB chromosomes, metabolic work-up, audiologic evaluation, brain MRI, electroencephalogram, and heart/abdomen ultrasonography were normal. When last seen, aged 8 years, she had a moderate intellectual disability (ID) and poor speech. She was hyperactive with short attention span and difficulty in concentration, but, based on formal testing, did not have autism. Our patient shows common clinical features to the four individuals described by Ballif et al. [Ballif et al. (2007); Nat Genet 39:1071-1073], and further characterizes the new microdeletion syndrome of 16p11.2-p12.2.

Results: The median durations from UC diagnosis to colectomy and from pouch creation to the last follow-up for the whole JNJ-26481585 cohort were 6 (interquartile range [IQR]: 3-13)

and 9 years (IQR: 5-14), respectively. A total of 2472 surveillance and/or diagnostic pouchoscopies were performed for the cohort with a median follow-up of 5 (IQR: 2-6) years in the Pouchitis Clinic. The median number of pouchoscopies per patient was 2 (IQR: 1-3). Of the 1094 patients, 96 (8.8%) were found to have pouch polyps. The median size of the polyps was 1.2 (IQR: 1.0-2.0) cm. On histology, 93 patients (96.9%) had inflammatory-type polyps and 3 (3.1%) had polyps with low-grade dysplasia or indefinite for dysplasia. Multivariate logistic regression CP-456773 clinical trial analysis demonstrated that chronic pouch inflammatory change was a risk factor for the development of pouch polyp with an odds ratio of 2.26 (95% confidence interval: 1.35-3.79; P = 0.002). Conclusion: The majority of pouch polyps in patients with underlying UC were benign. Patients with concomitant chronic pouch inflammatory changes had an increased risk for developing pouch polyps. (C) 2013 European Crohn’s and Colitis Organisation. Published by Elsevier B.V. All rights reserved.”
“P-type Schottky barrier Ge nanowire transistors modulated with dopant segregated regions are proposed and studied. The impact of dopant segregated regions on device performance is simulated

and investigated with numerical tools. It is revealed that dopant segregation is beneficial to increasing drive current and better utilizing nanowire channel. The OFF-state current is effectively

suppressed with high dopant concentration, and the phenomena in the minimum current curves are carefully reinterpreted with carrier transport mechanisms. It is also shown that the dopant segregated regions with moderate length and high concentration can achieve high ON/OFF ratio and low subthreshold slope. Furthermore, we find that the subthreshold slope of long segregation length is insensitive to source/drain barrier heights, and that moderate segregation length helps to obtain lower subthreshold slope as channel length is scaled down. (C) 2014 The Japan Society of Applied LOXO-101 ic50 Physics”
“Microsatellite instability (MSI) has been reported in various tumors, with colon cancer as the prototype. However, little is known about MSI in Barrett esophagus (BE)-associated adenocarcinoma. Thus, the aim of this study was to compare the clinicopathologic and molecular features of BE-associated adenocarcinomas with and without MSI. The study cohort consisted of 76 patients with BE-associated adenocarcinomas (66 male, 10 female), with a mean age of 65.1 years. Immunohistochemistry (IHC) for MLH1, MSH2, MSH6, PMS2, and CD3 and in situ hybridization for Epstein-Barr virus-encoded RNA were performed. MLH1 and PMS2 expression was lost by IHC in 5 cases (6.

We propose that salivary cortisol could be used as an indicator of stress in puppies during early ontogeny. It is not yet clear whether sIgA could be used as a useful indicator of short-term stress in dogs.”
“Social organisms fundamentally rely on experience to successfully navigate in a social world by associating social stimuli with aversive versus safe qualities. Cognitive neuroscience

research has shown that visual cues reliably paired with danger are processed more efficiently than neutral cues, and that such facilitated sensory processing extends to low levels of the visual system. The present study aimed at determining see more the extent to which visual cortical engagement elicited by a face stimulus with learned affective value is modulated by relatively subtle facial features such as gaze direction and emotional expression. To this end, electro-cortical processing of direct-gaze compared to averted-gaze faces serving as CS+ cues was investigated in a differential fear conditioning paradigm. Furthermore it was investigated

whether gaze Epigenetics inhibitor shift interacted with angry facial expressions to confer greater immunity to extinction of learned associations. Behavioral ratings and visually evoked steady-state potentials (ssVEP) were recorded in healthy human participants. As expected, direct-gaze CS+ compared to averted-gaze CS cues elicited larger ssVEP amplitudes during conditioning, whereas this differentiation was not observed when averted-gaze faces were paired with the aversive US. Importantly, a more fine-grained analysis examining trial-by-trial changes in visual cortical activation across the learning phases revealed that this effect was not necessarily due to lack of learning per se, but mainly due to a delayed build-up of cortical amplification for the averted-gaze CS+ cues. This suggests that the temporal dynamics of cortical engagement with www.selleckchem.com/products/dmh1.html aversively conditioned faces vary as a function of the cue with gaze direction as an important modulator

of the speed of the acquisition of the aversive response. (C) 2014 Elsevier Ltd. All rights reserved.”
“The tight junction forms a barrier against unlimited paracellular passage but some of the tight junction proteins just do the opposite, they form extracellular channels zigzagging between lateral membranes of neighboring cells. All of these channel-forming proteins and even some of the barrier formers exhibit selectivity, which means that they prefer certain substances over others. All channel formers exhibit at least one of the three types of selectivity: for cations (claudin-2, -10b, -15), for anions (claudin-10a, -17) or for water (claudin-2). Also some, but not all, barrier-forming claudins are charge-selective (claudin-4, -8, -14). Moreover, occludin and tricellulin turned out to be relevant for barrier formation against macromolecule passage.