Play motivation including achievement, social interaction and imm

Play motivation including achievement, social interaction and immersion as well as problematic use were tested as mediating variables. Participants (N = 565) completed online measures including demographics and play time, health, motivations to play and problematic use. Analysis revealed a negative correlation between playing time and psychological wellbeing. A Multiple Mediation Model showed the relationship CH5424802 in vivo specifically occurred where play was motivated by Immersion and/or where play was likely to have become problematic. No evidence of a direct effect of play on psychological wellbeing was found

when taking these mediating pathways into account. Clinical and research implications are discussed.”
“Background: Long noncoding RNAs (lncRNAs) play widespread roles in gene regulation and cellular processes. However, the functional roles of lncRNAs in colorectal cancer (CRC)

are not yet well elucidated. GSK2126458 manufacturer The aim of the present study was to measure the levels of lncRNA 91H expression in CRC and evaluate its clinical significance and biological roles in the development and progression of CRC. Methods: 91H expression and copy number variation (CNV) were measured in 72 CRC tumor tissues and adjacent normal tissues by real-time PCR. The biological roles of 91H were evaluated by MTT, scratch wound assay, migration and invasion assays, and flow cytometry. Results: 91H was significantly overexpressed in cancerous tissue and CRC cell lines compared with adjacent normal tissue and a normal human intestinal epithelial cell line. Moreover, 91H overexpression was closely associated with distant metastasis and poor prognosis in patients with CRC, except for CNV of 91H. Multivariate analysis indicated that 91H expression was an independent prognostic indicator, as well as distant metastasis. Our in vitro data indicated that knockdown of 91H inhibited the proliferation,

migration, and invasiveness of CRC cells. Conclusions: 91H played an important role in the molecular etiology of CRC and might be regarded as a novel prognosis indicator in patients with CRC.”
“The Selleck 5-Fluoracil aim of this study was to determine chemerin levels in preeclampsia and to assess the effects of this anti-inflammatory factor on endothelial nitric oxide synthase (eNOS), nuclear factor (NF)-kappa B, and vascular cell adhesion molecule (VCAM) expression in human umbilical vein endothelial cells (HUVECs). Serum chemerin and eNOS levels were measured by enzyme-linked immunosorbent assays, while chemerin mRNA and protein levels were measured by fluorescent quantitative polymerase chain reaction and Western blotting, respectively. Nitric oxide (NO) concentrations were determined with a colorimetric method. Akt and eNOS phosphorylation were assessed by Western blotting.

For the fixed-dose single-tablet regimens (STRs), there are two c

For the fixed-dose single-tablet regimens (STRs), there are two currently approved regimens: Atripla (R) and Complera (R). Another STR RG7321 elvitegravir/cobicistat/emtricitabine/tenofovir

(QUAD, Stribild (R)) is recently approved by the US FDA (August 20, 2012), whereas two additional SRTs, including abacavir/lamivudine/dolutegravir and darunavir/cobicistat/emtricitabine/GS-7340 are undergoing Phase III and II trials, respectively. Three OD regimens are currently recommended by the US DHHS guidelines as the preferred regimens for treatment-naive patients (efavirenz, boosted atazanavir and boosted darunavir). EFV-based regimen is the only OD regimen available for resource-limited countries. Nevertheless, it should be noted that each of these OD regimens has its own advantages and disadvantages and therefore should be selected accordingly.”
“Liposome-encapsulated polyplex system represents a promising delivery system for oligonucleotide-based therapeutics such as siRNA and asODN. Here, we

report a novel method to prepare liposome-encapsulated cationic polymer/oligonucleotide polyplexes based on the reverse-phase evaporation following organic extraction of the polyplexes. The polyplexes of polyethylenimine and oligonucleotide were first formed in aqueous buffer at an N/P ratio of 6. The overall positively charged polyplexes were then mixed with the anionic phospholipids in overall selleck compound organic media. The overall organic environment and PXD101 order electrostatic interaction between anionic phospholipids and positively charged polyplexes resulted in inverted micelle-like particles with the polyplexes in the core. After

phase separation, the hydrophobic particles were recovered in organic phase. Reverse-phase evaporation of the organic solvent in the presence of hydrophilic polymer-grafted lipids resulted in a stable aqueous dispersion of hydrophilic lipid-coated particles with the polyplex in the core. Transmission electron microscopy visualization revealed spherical structures with heavily stained polyplex cores surrounded by lightly stained lipid coats. The lipid-coated polyplex particles showed colloidal stability, complete protection of the loaded oligonucleotide molecules from enzymatic degradation, and high loading efficiency of more than 80%. Thus, this technique represents an alternative method to prepare lipid-coated polyplex particles as a delivery system of oligonucleotide therapeutics.”
“The study was conducted on 36 female Pharaoh quails (3 groups, 12 birds per group). The experiment covered the 7th to the 20th weeks of birds’ lives. The control group (I) received standard feed formulated for adult quails. Groups II and III received standard feed with 4% and 7% of amaranth seeds, respectively. All feeds were isoproteinous and isocaloric.

(C) 2014 The Authors Published by Elsevier Inc “
“Introduct

(C) 2014 The Authors. Published by Elsevier Inc.”
“Introduction Many studies have demonstrated a rise in troponin and brain natriuretic peptide (BNP) levels following prolonged and/or strenuous exercise. Only one study looked at athletes who collapse and this showed no difference in cardiac biomarkers between those who collapsed and selleck chemicals those who completed without requiring medical attention. We set out to describe and quantify the changes in troponin and BNP in three groups of non-elite runners at the 2009 London marathon: those with and without

known structural heart disease (SHD) and those who collapsed on completion. Methods The first group (recruited group, RG) was recruited at the prerace exhibition. This group had

two subsets, runners with SHD and without (non-SHD). A second group was recruited from those who collapsed (collapsed group, CG). Blood was taken for troponin I (TnI), troponin T (TnT), high sensitivity TnT (HSTnT) and BNP. Results Cardiac biomarker levels increased in all groups following the marathon. No statistically significant difference was seen between the SHD and non-SHD subgroups. When comparing the RG and CG the number and degree of rise was greater in those who collapsed. A trend for the degree of rise of HSTnT was demonstrated. Discussion We identified runners Epigenetics inhibitor with troponin levels that, in other circumstances, would raise concern for myocardial necrosis. However

absence of adverse clinical sequelae would suggest this rise is physiological. The cause and clinical significance of the increased HSTnT levels seen in those that collapsed is yet to be fully elucidated.”
“Sandfly-borne phleboviruses may cause a transient febrile illness (sandfly buy Pexidartinib fever) or more severe neuroinvasive disease. In the Old World, they are vectored by phlebotomine flies, which are widely distributed in the Mediterranean basin, North Africa, the Indian subcontinent, the Middle East and central Asia. High seroprevalence rates have been recorded in humans and domestic animals in areas where sandflies are present. Most published studies have focused on phlebovirus infections of travelers and of soldiers stationed in endemic areas, but the health impact on local populations should not be underestimated, as seroprevalence studies indicate massive circulation of these viruses, even if disease is seldom documented. Except for Toscana virus, which shows a marked neurotropism and is a leading cause of aseptic meningitis in endemic regions, phlebovirus infections are inadequately considered by physicians and are generally underestimated. However, several properties of these viruses suggest that they will extend their geographic range. First, changes in the areas occupied by sandflies as a result of climate change have a direct impact on the epidemiology of associated human and animal diseases.


“Purpose: We report a 2-center study of factors affecting


“Purpose: We report a 2-center study of factors affecting the stone-free rate after percutaneous nephrolithotomy in horseshoe kidneys.\n\nMaterials and Methods: The postoperative stone-free rate after percutaneous nephrolithotomy was evaluated in 47 male and 11 female patients with horseshoe kidneys. All data were collected prospectively. Patient and procedure related factors predicting the stone-free rate were analyzed by univariate and multivariate tests.\n\nResults: The mean +/- SD stone burden was 7.62 +/- 7.18 cm(2) (range 1 to 45) and the stone was larger than 10 cm2 in 14 patients (24.1%). Complex stones and staghorn stones

were present in 21 (36.2%) and 19 patients (32.7%), respectively. The overall stone-free rate was 65.5%. Complex stones (p = 0.01), stone burden greater than 5 cm(2) (p = 0.013), stone burden greater than 10 cm(2) (p = 0.012), multiple stones (p = 0.006) and staghorn 3-Methyladenine PI3K/Akt/mTOR inhibitor stones (p <0.001) were related to adverse outcomes on univariate analysis. Logistic regression analysis revealed that staghorn calculi was the only factor that significantly predicted the stone-free rate (p = 0.002). A patient with staghorn calculi in the horseshoe kidney was 45 times more likely to have a lower stone-free rate after percutaneous nephrolithotomy than a patient without staghorn calculi in the horseshoe kidney.\n\nConclusions: Stone parameters

are important when treating calculi in horseshoe kidneys. Staghorn calculi are associated with a lower stone-free rate after percutaneous C59 nephrolithotomy.”
“Recent genome-wide analyses

have elucidated the extent of alternative splicing (AS) in mammals, often focusing on comparisons of splice isoforms between differentiated tissues. see more However, regulated splicing changes are likely to be important in biological transitions such as cellular differentiation, or response to environmental stimuli. To assess the extent and significance of AS in myogenesis, we used splicing-sensitive microarray analysis of differentiating C2C12 myoblasts. We identified 95 AS events that undergo robust splicing transitions during C2C12 differentiation. More than half of the splicing transitions are conserved during differentiation of avian myoblasts, suggesting the products and timing of transitions are functionally significant. The majority of splicing transitions during C2C12 differentiation fall into four temporal patterns and were dependent on the myogenic program, suggesting that they are integral components of myogenic differentiation. Computational analyses revealed enrichment of many sequence motifs within the upstream and downstream intronic regions near the alternatively spliced regions corresponding to binding sites of splicing regulators. Western analyses demonstrated that several splicing regulators undergo dynamic changes in nuclear abundance during differentiation.

5A degrees was observed on the fluoroscopic

5A degrees was observed on the fluoroscopic Rabusertib datasheet image. Coronal alignment was measured on standing long-leg digital radiographs. Patients operated with fluoroscopy assistance had (1) a lower risk of malalignment at the threshold of bigger than 3A degrees (risk ratio, 0.7; 95 % CI, 0.13-1.2), (2) a mean fluoroscopic time of 3 s, and (3) a longer operative time (69 vs. 60 min, p smaller than 0.001). The American Knee Society Score was not different between the two groups at 1-year follow-up. This new surgical intervention appears to offer an effective

means for improving the precision of TKA alignment in the coronal plane. Randomized clinical study, therapeutic study, Level I.”
“We aimed to assess the associations between parental history of hypertension and indicators of cardiovascular risk (retinal vessel diameter, presence of obesity,

and elevated blood pressure) in prepubertal children. There were 1739 (77.7% of those eligible) 6-year-old students (863 girls and 876 boys) who were examined from a random cluster sample of 34 Sydney schools. Parents completed questionnaires about their medical conditions, including whether they have/had hypertension. Retinal images were taken with a digital fundus camera, and retinal vessel caliber was quantified using computer software. Anthropometric (height, weight, percentage of body fat, and body mass index) and blood pressure measures were collected. There were 160 children (9.2%) with a positive parental history of hypertension

(either biological mother and/or father). Children with a positive versus negative parental https://www.selleckchem.com/products/mi-503.html history of hypertension had significantly higher body mass index (16.8 versus 16.5 kg/m(2); P=0.04) and systolic blood pressure (101.3 versus 99.8 mm Hg; P=0.01). Girls with positive versus negative parental history of hypertension had significantly higher diastolic blood pressure (approximate to 3.1 mm Hg; P=0.01) and narrower retinal arteriolar caliber (approximate to 4.3 mu m; P=0.0004). Positive parental history of hypertension was not associated with mean retinal vascular caliber among boys. We show that a positive parental history of hypertension in healthy prepubertal girls, but not boys, is associated with narrower retinal arteriolar vessels, likely conveying WH-4-023 supplier a predisposition to develop hypertension later in life. These findings may indicate the need for cardiovascular disease prevention measures starting early in life among offspring of hypertensive parents. (Hypertension. 2011;58:425-430.)”
“The method of vagus somatosensory evoked potentials (VSEP) was introduced to easily measure the activity of vagus brain stem nuclei. In Alzheimer’s disease, this measure was characterized by longer latencies as compared to controls while amplitudes did not show statistical significant differences at frontal and central recording sites.

6, 95% confidence interval (CI): 0 9-13 8] and SP (OR: 4 8, 95% C

6, 95% confidence interval (CI): 0.9-13.8] and SP (OR: 4.8, 95% CI: 1.3-17.9), and arterial hypertension

was associated with a lower PP (OR: 6.7, 95% CI: 0.8-53.9), whereas the presence of hyperparathyroidism was associated with higher PP and SP (OR: 0.2, 95% CI: 0.1-0.7). In contrast, PP and SP in patients with perforating vein AVF were not influenced by comorbidities.\n\nConclusions. Perforating vein AVF is superior to forearm AVF in elderly patients with diabetes and arterial hypertension due to the proximal fistula location, probably caused by an improved artery distensibility during fistula maturation.”
“Background: It is common for authors to introduce a paper by demonstrating the importance of the clinical condition being addressed, usually by quoting data such as mortality and prevalence selleck kinase inhibitor rates. Abdominal aortic aneurysm (AAA) epidemiology is changing, and therefore such figures for AAA are subject to error. The aim of this study was to analyse the accuracy of AAA prevalence and mortality citations in the contemporaneous literature.\n\nMethods:

Fedratinib molecular weight Two separate literature searches were performed using PubMed to identify studies reporting either aneurysm prevalence or mortality. The first 40 articles or those published over the last 2 years were included in each search to provide a snapshot of current trends. For a prevalence citation to be appropriate, a paper had to cite an original article publishing its own prevalence of AAA or a national report. In addition, the cited prevalence should match that published within the referenced article. These reported statistics were compared with the most recent data on aneurysm-related see more mortality.\n\nResults: The prevalence of AAA was reported to be as low as 1% and as high as 12.7% (mean 5.7%, median 5%). Only 47.5% of studies had referenced original articles, national reports or NICE, and only 32.4% of cited prevalences matched those from the referenced article. In total 5/40 studies were completely accurate. 80%

of studies cited aneurysm mortality in the USA, with the majority stating 15,000 deaths per year (range 9,000 to 30,000). Current USA crude AAA mortality is 6,289 (2010).\n\nConclusion: References for AAA mortality and prevalence reported in the current literature are often inaccurate. This study highlights the importance of accurately reporting mortality and prevalence data and using up-to-date citations. (C) 2013 European Society for Vascular Surgery. Published by Elsevier Ltd. All rights reserved.”
“Background-The American Heart Association (AHA) statement has recommended routine screening for depression in coronary artery disease with a 2-stage implementation of the Patient Health Questionnaire (PHQ). Because there is little evidence on feasibility, accuracy, and impact of such a program on depression recognition in coronary patients, the AHA recommendation has met substantial debate and criticism.

Juncea Briq “
“Boron aluminum hydride clusters are studied t

Juncea Briq.”
“Boron aluminum hydride clusters are studied through a synergetic combination of anion photoelectron spectroscopy and density functional theory based calculations. Boron aluminum hydride cluster anions, BxAlyHz-, were generated in a pulsed arc cluster ionization source and identified by time-of-flight mass spectrometry. After mass selection, their photoelectron spectra were measured by a magnetic bottle-type electron energy analyzer. The resultant photoelectron spectra as well as calculations on a selected series of stoichiometries reveal significant geometrical changes upon substitution

of aluminum atoms by boron atoms. (C) 2014 AIP Publishing LLC.”
“Given BLZ945 the high failure rates and the increased costs of Phase III trials in oncology and the recent explosion of targeted agents, researchers are looking for better design strategies to try and optimise the use of available patients and financial resources. In this context, adaptive designs are seen as promising tools.\n\nWe reviewed the different possible adaptations in the design of a clinical trial on the basis of the FDA guidance and summarized these. The pro and

cons of adaptive designs are highlighted with a focus on one of the more ‘controversial’ adaptive designs, the sample size reassessment based on interim-effect size as proposed by Mehta and Pocock.\n\nWhile group sequential designs are preferable to such adaptive designs, both are difficult to implement in the case of rapid accrual and long time to event.\n\nAdaptive designs may have some potential in less favourable situations. However, the increase in overall power should P005091 concentration be carefully weighted as well as the risk of a large negative trial. Adaptive designs need good, sometimes extensive, logistics. Some adaptive designs (e. g. group sequential designs) proved to be very useful and are already a part of the standard repertoire of trial designs used at European Organisation for Research and Treatment of Cancer Omipalisib cost (EORTC). Adaptive designs need strong measures to prevent bias that could otherwise

become uncontrollable, particularly if interim results are leaked. This includes a prospective planning of adaptations.\n\nFinally, these studies currently have the potential to induce a heavy workload and cost linked to their regulatory management. (C) 2012 Elsevier Ltd. All rights reserved.”
“In men, the penile urethra is a primary infection site for sexually transmitted pathogens. Research on the immunology of this mucosal site has been limited in part due to sampling challenges, but available evidence indicates that the urethra contains a rich contingent of immunological mediators that can mount vigorous innate and adaptive immune responses against infectious organisms. Further research is needed to define approaches to stimulate immunity at this mucosal site to prevent the transmission of HIV-1 and other sexually transmitted pathogens. (C) 2011 Elsevier Ireland Ltd. All rights reserved.

But, the therapeutic option for patients meeting the Milan criter

But, the therapeutic option for patients meeting the Milan criteria with preserved liver function is facing a dilemma. In this study, we examined the outcomes of surgical resection for HCC patients meeting the Milan criteria with preserved liver function and rationale of hepatic resection as the first treatment for HCC meeting the Milan Criteria.\n\nMethods: Between 1991 and 2006, 248 patients with HCC underwent hepatectomy in 1.58 primary HCC patients meeting Milan criteria (Group M) and in 90 patients beyond Milan criteria (Group N). Median age was 54.5 years in group M and 52.4 years in group N.\n\nResults:

The tumor size, mean survival months, E-S grade and vascular invasion rate were significantly different between the two groups. 67 patients in group M and 22 patients in group N had intrahepatic recurrence see more after primary hepatectomy.

The cumulative 1, 3, and 5-year survival rates were 91.9%, 74.5%, and 60.5% in intrahepatic recurrence group M after primary hepatectomy and 100%, 96.0%, and 90.5% in repeated hepatic resection for recurrent treatment in group M, respectively.\n\nConclusion: Because of the high survival rate and long-term Survival after adequate treatment of recurrence, primary hepatectomy is considered a reasonable option as first-line treatment for HCC meeting Milan criteria with preserved liver function. (J Korean Surg Soc 2009;77:267-272)”
“Aim Understanding YAP-TEAD Inhibitor 1 molecular weight the factors underlying the successful establishment of invasive ant species is critical for developing quarantine strategies to prevent additional invasions as well as for determining how such species overcome the selective pressures in invaded areas. Although several studies have revealed differences in the social organization and population genetics of

invasive ants in their native and introduced ranges, few studies have considered the potential interactions between alternate social forms within newly-invaded areas simply because many invasive ants are characterized as polygyne or unicolonial.\n\nLocation Taoyuan and Chiayi County, Taiwan.\n\nMethods Both social forms (polygyne and monogyne) of the red imported fire ant, Solenopsis invicta, occur in two separately invaded areas in Taiwan (Taoyuan and Chiayi). We Apoptosis inhibitor employed intensive sampling methods and diagnostic polymerase chain reaction assays to determine the distribution of these two social forms in both infested areas in Taiwan.\n\nResults The distribution of social forms differs dramatically between the two infested areas, consistent with different invasion histories regarding the original make-up of individuals comprising the initial founder group. The Taoyuan population likely was colonized initially by ants of both social forms, with the subsequent spread characterized by continuous outward movement of the two forms, particularly the monogyne form.

However, validation in larger and independent populations will be

However, validation in larger and independent populations will be necessary for optimal generalization. (C) 2014 Elsevier B.V. and ECNP. All rights reserved.”
“Kaposi’s sarcoma-associated herpesvirus (KSHV) is a gamma-2-Iymphotropic human oncogenic herpesvirus associated with Kaposi’s sarcoma (KS) and two B-cell lymphoproliferative diseases, primary effusion lymphoma (PEL) and multicentric this website Castleman’s disease (MCD). KSHV establishes latency soon after infection in vivo and in vitro. Consequently, it is technically

difficult to generate high-titre virus stocks required for infection experiments in tissue culture. Currently used methods of KSHV stock production involve induction of the lytic/productive cycle in PEL cell lines or in adherent cell lines harbouring recombinant KSHV genomes. In this study, the BJAB-derived B-cell line BrK.219, which is infected latently with a recombinant KSHV (rKSHV.219), is used to produce high-titre virus stocks. BrK.219 cells enter the lytic KSHV replication cycle upon cross-linking of B-cell receptors (BCRs) with anti-IgM antibodies without the need

for additional, potentially toxic chemical inducers. High cell concentrations can be cultured and induced easily in spinner flasks, saving time and resources. The established protocol allows the generation of KSHV virus stocks with titres of up to 106 IU/ml in unconcentrated culture supernatants, representing a 103-104-fold improvement compared to conventional methods. (C) 2015 Elsevier B.V. All rights reserved.”
“Purpose: The aim of this study was to evaluate the association of three single nucleotide polymorphisms MDV3100 cell line (SNPs, rs11712066 and rs573872 near MBNL1, rs29784 near NKX2-5) with infantile Epigenetic inhibitor purchase hypertrophic pyloric stenosis (IHPS) in Chinese Han population. Methods: A total of 47 family trios consisting of infants with IHPS and their healthy biological parents were recruited for this study. Genotypes were determined using direct sequencing. Transmission disequilibrium test (TDT) was performed for family-based association analysis. Results:

Genotypic distributions of three SNPs in both groups (patients and proband’s parents) were in conformity with Hardy-Weinberg equilibrium (P bigger than 0.05). There were significant preferential transmission of A allele of rs29784 from the parents to affected offspring (TDT: x(2) = 5.444, P = 0.0196). However, other two polymorphism loci (rs11712066 and rs573872) were not significant susceptibility loci for IHPS in Chinese Han population. Conclusions: We found that there was a significant association between rs29784 and IHPS.”
“d’Uscio LV, Smith LA, Katusic ZS. Differential effects of eNOS uncoupling on conduit and small arteries in GTP-cyclohydrolase I-deficient hph-1 mice. Am J Physiol Heart Circ Physiol 301: H2227-H2234, 2011. First published September 30, 2011; doi:10.1152/ajpheart.00588.2011.

As a result, the M1-M2 polarization balance was increased in FH a

As a result, the M1-M2 polarization balance was increased in FH and, more markedly in NFH. M1 MoMas and the M1-M2 polarization ratio were directly correlated to pre-treatment LDL cholesterol levels and strongly associated with the presence of atherosclerotic plaques. In conclusion, we show for the first time that human hypercholesterolemia is associated with a pro-inflammatory imbalance of circulating monocytic cells, which can predispose to the development of atherosclerosis. (C) 2014 Elsevier Ireland Ltd. All rights reserved.”
“Key message Comparative proteome analysis revealed the proteins that are differentially

expressed during the processes of tetraploid black locust (Robinia pseudoacacia L.) AZD1152 in vitro adventitious root formation, which are involved in carbohydrate binding, energy and metabolism, and stress response. Abstract The tetraploid black locust (Robinia pseudoacacia L.) is an important fast-growing tree used in afforestation and is also a protein-rich feed for poultry. Currently, the primary approach for tetraploid black locust reproduction is through cutting propagation. To identify the specific proteins in the rooting process, including the formation of adventitious root primordium (ARP) and

www.selleckchem.com/products/AP24534.html the elongation of adventitious root (EAR), a comparative proteomic analysis of the ARP and EAR of tetraploid black locust was performed to identify RG-7112 concentration related proteins that may be involved in regulating

ARP formation and the process of EAR. High-resolution two-dimensional electrophoresis (2-DE) followed by colloidal Coomassie staining and mass spectrometric (MS) analysis was used to identify differentially expressed proteins in ARP and EAR. A total of 84 protein spots showed significant expression changes by 2-DE and were successfully identified by MALDI TOF/TOF MS/MS. Of these, 29 proteins were differentially expressed during the ARP phase, and the remaining 55 proteins did so in the EAR phase. The majority of identified proteins were classified into functional categories, including carbohydrate binding, energy and metabolism, protein degradation/folding and import, cellular cytoskeleton, hormonerelated and oxidation reactions, stress response, cell proliferation, and transcription regulation. Quantitative real-time PCR analysis was performed for selected proteins and showed that not all of the protein expression levels were consistent with the mRNA levels. This study provides the basis for further functional studies of differentially expressed proteins, which will contribute to the understanding of the biochemical processes in adventitious root primordium formation and the elongation of adventitious root.