“The use of nanoparticles for surface modification and per


“The use of nanoparticles for surface modification and performance enhancement of membranes is another latest trend in membrane technology. In this work acid functionalized multi wall carbon nanotubes (f-MWCNT) was initially mixed with polyvinylpyrrolidone (PVP) in dimethylformamide (DMF) to form nano-composites (NCs) and then blended with polyethersulfone (PES). The PES/PVP-f-MWCNT nano-hybrid hemodialysis membrane was formed via the phase inversion process. The membranes were characterized and their

performances were then evaluated in terms of pure water permeation rates (PWP), urea, creatinine and lysozyme rejection. The results revealed that, compared to the pristine PES membrane, the BI-D1870 PES nano-hybrid hemodialysis membranes were more hydrophilic; possess high PWP rate up to 72.20 L.m(-2).h(-1), exhibited 58.82% reduced protein absorption, and better uremic waste clearance of 56.30%, 55.08% and

27.90% of urea, creatinine and lysozyme respectively. Thus the addition of NCs in the membranes indeed modified the surface and enhanced the performance of the PES membranes. (C) 2014 Elsevier B.V. All rights reserved.”
“Background: The hazardous health effects of smoking are established, but there remains a need to evaluate existing smoking prevention strategies and to increase their effectiveness in adolescents. Strategies focusing on parental attitudes and rule setting have been identified as a potentially effective approach. The present manuscript describes objectives, study design and methodology of the BEST Prevention study. Methods/design: PHA-848125 ic50 BEST Prevention is a three-armed cluster randomized-controlled trial among 7th grade (11-16 years) students in Berlin, Germany. Schools were enrolled between 2010 and 2011 and allocated using a centralized

randomization list into 1) a student smoking prevention intervention (visit to an established interactive circuit), 2) the same intervention plus Selleckchem Bucladesine a parent intervention, and 3) a control group (visit to an established exercise and nutrition interactive circuit). Students were assessed at baseline, 12 and 24 months via self-report, as well as via carbon monoxide and cotinine in saliva at the 24 month follow-up. Statistical analyses uses multi-level regression models with cluster effects (school and class within school) based on the intention to treat population. Here we report descriptive baseline characteristics of recruited schools, and schools classes. Two schools from the control group dropped out after allocation. Hence, 47 secondary schools from all 12 districts of the city, including 161 school classes and 3023 students are participating in the study. Of those, 2801 students completed the baseline assessment. Discussion: The present manuscript provides details on the study design and methodology of a large school-based smoking prevention trial in a metropolitan area in Germany.

japonica and E papillosa cannot be explained by genetic drift I

japonica and E. papillosa cannot be explained by genetic drift. Instead, the present allozyme data suggest that recent origin from the same genetically depauperate ancestral or source population could result in this observation. The current status of T. japonica and E. papillosa (rarity and lack of genetic variation) significantly threatens the long-term survival of the species in Korea.”
“Reasons for performing study: Standing fracture repair in the horse is a recently described surgical procedure and currently R406 nmr there are few follow-up data. This

case series contains 2 novel aspects in the standing horse: repair of incomplete sagittal fractures of the proximal phalanx and medial condylar repair from a lateral aspect.\n\nObjectives: To describe outcome in a case series of horses that had lower limb fractures repaired under standing sedation at Rossdales JNK-IN-8 Equine Hospital.\n\nMethod: Case records for all horses that had a fracture surgically repaired, by one surgeon at Rossdales Equine Hospital, under standing sedation and local anaesthesia up until June 2011, were retrieved. Hospital records, owner/trainer telephone questionnaire and the Racing Post website were used to evaluate follow-up.\n\nResults: Thirty-four horses satisfied the inclusion criteria. Fracture sites included the proximal phalanx (incomplete sagittal fracture, n = 14); the third

metacarpal bone (lateral condyle, n = 12, and medial condyle, n = 7); and the third metatarsal bone (lateral condyle, n = 1). One horse required euthanasia due to caecal rupture 10 days post operatively. Twenty horses (66.7% of those with available follow-up) have returned to racing. Where available, mean time from operation to return to racing was 226 days (range 143433 days).\n\nConclusions: Standing fracture repair produced similar results to fracture repair under general anaesthesia in terms of both

the number of horses that returned to racing and the time between surgery and race.\n\nPotential relevance: Repair of lower limb fracture in the horse under standing sedation is a procedure that has the potential Galardin chemical structure for tangible benefits, including avoidance of the inherent risks of general anaesthesia. The preliminary findings in this series of horses are encouraging and informative when discussing options available prior to fracture repair.”
“Background: Idiopathic intracranial hypertension (IIH) is a syndrome characterized by elevated intracranial pressure, without evidence of intracranial mass lesion or venous thrombosis on brain imaging. The syndrome occurs mainly in young, fertile, and overweight women but may present in any age group. The aim of this study was to report the presentation, course, and outcomes of older versus younger children presenting with IIH to the emergency department of our large tertiary care hospital during an 8-year period.

The Hamilton Depression Rating Scale (HDRS) was also applied for

The Hamilton Depression Rating Scale (HDRS) was also applied for comparative purposes.\n\nResults: Our results demonstrate that the SHAPS in its spanish version

maintains the validity and reliability level of the original english Selleckchem PD0332991 version. A moderate internal consistency was determined by Cronbach alpha value of 0.77.\n\nConclusion: our results demonstrate the the spanish version of the SHAPS has validity and reliability similar to its original version, and thus it represents a good alternative to evaluate anhedonia in spanish-speaking populations.”
“Plant growth promoting rhizobacteria (PGPR) has been a focus of research for its potential as an eco-friendly alternative to chemical fertilizers in the agriculture industry. In current study, the effect of culture suspension

(CS) of a novel gibberellins (GAs) producing bacterial strain Burkholderia sp. KCIC 11096BP, was observed on shoot length, shoot fresh and dry biomass, root fresh and dry biomass, chlorophyll contents, endogenous bioactive GAs (GA(1) and GA(4)) and their immediate precursors, abscisic acid (ABA), soluble sugar contents and crude protein contents of cucumber (Cucumis sativus L). We found that growth attributes of cucumber were significantly promoted by the application of CS of Burkholderia sp. KCTC 11096BR The quantity of GA(1) and GA(4) and their immediate precursors GA(20) and GA(9) respectively, were also significantly promoted as compared to their respective controls. Contrary to GAS, the quantity of endogenous free ABA in cucumber leaves was much lower in bacterial CS treated plants. Soluble sugar contents AZD0530 purchase and crude protein contents of cucumber leaves were also significantly higher in bacterial CS treatments as compared to control. It was concluded that Burkholderia sp. KCTC 11096BP can be used as an eco-friendly bio-fertilizer in our farming systems. (C) 2010 Elsevier Masson

SAS. All rights reserved.”
“BackgroundOverweight Citarinostat in vivo or obese individuals with type 2 diabetes are encouraged to lose weight for optimal glucose management, yet many find this difficult. Determining whether alterations in dietary patterns irrespective of weight loss can aid glucose control has not been fully investigated. MethodsWe conducted a systematic review and meta-analysis aiming to determine the effects of a Mediterranean diet compared to other dietary interventions on glycaemic control irrespective of weight loss. Electronic databases were searched for controlled trials that included a Mediterranean diet intervention. The interventions included all major components of the Mediterranean diet and were carried out in free-living individuals at high risk or diagnosed with type 2 diabetes. Network meta-analysis compared all interventions with one another at the same time as maintaining randomisation. Analyses were conducted within a Bayesian framework.

The model predicts that the cellular membrane is intrinsically ca

The model predicts that the cellular membrane is intrinsically capable of absorbing mechanical energy from the ultrasound field and transforming it into expansions

and contractions of the intramembrane space. It further predicts that the maximum area strain is proportional to the acoustic pressure amplitude and inversely proportional to the square root of the frequency (epsilon (A,max) proportional to P(A)(0.8) f(-0.5)) and is intensified by proximity to free surfaces, the presence of nearby microbubbles in free medium, and the flexibility of the surrounding tissue. Model predictions were experimentally supported using transmission electron microscopy (TEM) of multilayered live-cell goldfish epidermis exposed in vivo to continuous wave (CW) ultrasound at cavitational (1 MHz) and noncavitational (3 MHz) conditions. Our results support the hypothesis that ultrasonically BKM120 induced bilayer membrane motion, which does not require preexistence of air voids in the tissue, may account buy HM781-36B for a variety of bioeffects and could elucidate mechanisms of ultrasound interaction with biological tissue that are currently not fully understood.”
“Introduction: A gene expression signature indicative

of activated wound responses is common to more than 90% of non-neoplastic tissues adjacent to breast cancer, but these tissues also exhibit substantial heterogeneity. We hypothesized that gene expression subtypes of breast cancer microenvironment can be defined and that these microenvironment subtypes have clinical relevance.\n\nMethods: Gene expression was evaluated in 72 patient-derived breast tissue samples adjacent to invasive breast cancer or ductal carcinoma

in situ. Unsupervised clustering identified two distinct gene expression subgroups that differed in expression of genes involved in activation of fibrosis, cellular movement, cell adhesion and cell-cell contact. We evaluated the prognostic relevance of extratumoral subtype (comparing the Active group, defined by high expression of fibrosis and cellular movement genes, to the Inactive group, defined by high expression of claudins and NU7441 in vitro other cellular adhesion and cell-cell contact genes) using clinical data. To establish the biological characteristics of these subtypes, gene expression profiles were compared against published and novel tumor and tumor stroma-derived signatures (Twist-related protein 1 (TWIST1) overexpression, transforming growth factor beta (TGF-beta)-induced fibroblast activation, breast fibrosis, claudin-low tumor subtype and estrogen response). Histological and immunohistochemical analyses of tissues representing each microenvironment subtype were performed to evaluate protein expression and compositional differences between microenvironment subtypes.

The effect is prevented via G(i) inactivation by pertussis toxin

The effect is prevented via G(i) inactivation by pertussis toxin pretreatment. beta(2)AR number and functional responses were greater in isolated apical cardiomyocytes than in basal cardiomyocytes, which confirmed the higher apical sensitivity and response to circulating epinephrine. In vivo studies demonstrated high-dose epinephrine can induce direct cardiomyocytes cardiodepression

and cardioprotection Rabusertib order in a beta 2AR-Gi-dependent manner. Preventing epinephereine-G(i) effects increased mortality in the Takotsubo model, whereas beta-blockers that activate beta(2)AR-G(i) exacerbated the epinephrine-dependent negative inotropic effects without further deaths. In contrast, levosimendan rescued the acure cardiac dysfunction without increased mortality.\n\nConclusions-We suggest that biased agonism of epinephrine for beta(2)-AR-G(s)

at low concentrations and for G(i) at high concentrations underpins the acute apical cardiopression observed in Takotsubo cardiomyopathy, with an apical-basal gradient in beta(2)ARs explaining the differential regional responses. We suggest this epinephrine-specific beta(2)AR-G(i) signaling may have GSK923295 manufacturer evolved as a cardioprotective stategy to limit catecholamine-induced myocardial toxicity during acute stress (Circulation. 2012; 126:697-706.)”
“Objective Variations in cytochrome P450 (CYP) genes have been shown to be associated with both accelerated and delayed pharmacokinetic clearance of many psychotropic medications. Citalopram is metabolized by three CYP enzymes. CYP2C19 and CYP3A4 play a primary role in citalopram metabolism, whereas CYP2D6 plays a secondary role.\n\nMethods The Sequenced Treatment Alternatives to Relieve Depression sample was used to examine the relationship between variations in the CYP2C19 and Bcl-2 apoptosis pathway CYP2D6 genes and remission of depressive symptoms and tolerance to treatment with

citalopram. The primary analyses were of the White non-Hispanic patients adherent to the study protocol (n=1074).\n\nResults Generally, patients who had CYP2C19 genotypes associated with decreased metabolism were less likely to tolerate citalopram than those with increased metabolism, although this difference was not statistically significant (P = 0.06). However, patients with the inactive 2C19*2 allele had significantly lower odds of tolerance (P = 0.02). Patients with the poor metabolism CYP2C19 genotype-based category who were classified as citalopram tolerant were more likely to experience remission (P = 0.03).\n\nNo relationship between CYP2D6 genotype-based categories and either remission or tolerance was identified, although exploratory analyses identified a potential interaction between CYP2C19 and CYP2D6 effects.

This finding may be one of the factors accounting for anchorage-i

This finding may be one of the factors accounting for anchorage-independence in circulating metastatic melanoma cells. (C) 2009 Elsevier Ireland Ltd. All rights reserved.”
“Nearly every cell type exhibits some form of polarity, yet the molecular mechanisms vary widely. Here we examine what we term ‘chemical systems’ where cell polarization arises through biochemical interactions in signaling pathways, ‘mechanical systems’ where cells polarize due to forces, stresses and transport, and ‘mechanochemical systems’ where polarization results Wnt inhibitor from interplay between mechanics and chemical signaling. To reveal potentially unifying principles, we discuss mathematical conceptualizations of several

prototypical examples. We suggest that the concept of local activation and global

inhibition – originally developed to explain spatial patterning in reaction-diffusion systems – provides a framework for understanding many cases of cell polarity. Importantly, we find that the core ingredients in this framework – symmetry breaking, self-amplifying feedback, and long-range inhibition GSK1838705A – involve processes that can be chemical, mechanical, or even mechanochemical in nature.”
“The previous structure determination [Gillier-Pandraud et al. (1972). C. R. Acad. Sci. Ser. C, 275, 1495] of the title compound, C8H10O, did not report atomic coordinates. There are two molecules in the asymmetric unit, A and B, which both show approximate non-crystallographic C-s symmetry. The intracyclic C-C-C angles cover the range 118.74 (12)-121.76 (13)degrees. In the crystal, molecules are linked by O-H center dot center dot center dot O hydrogen bonds, MAPK inhibitor generating [001] C-2(2)(4) chains such that molecules A and B alternate. There is no aromatic pi-pi stacking in the crystal as the shortest centroid-centroid distance is greater than 4.74 angstrom.”
“Mass spectrometry and a time-course cell lysis method were used to study proteins involved in perchlorate and chlorate metabolism in pure bacterial cultures and environmental samples. The bacterial cultures used included Dechlorosoma sp. KJ, Dechloromonas hortensis, Pseudomonas

chloritidismutans ASK-1, and Pseudomonas stutzeri. The environmental samples included an anaerobic sludge enrichment culture from a sewage treatment plant, a sample of a biomass-covered activated carbon matrix from a bioreactor used for treating perchlorate-contaminated drinking water, and a waste water effluent sample from a paper mill. The approach focused on detection of perchlorate (and chlorate) reductase and chlorite dismutase proteins, which are the two central enzymes in the perchlorate (or chlorate) reduction pathways. In addition, acetate-metabolizing enzymes in pure bacterial samples and housekeeping proteins from perchlorate (or chlorate)-reducing microorganisms in environmental samples were also identified.

03 +/- 0 96, B-TED: 1 74 +/- 1 6, P= 0 001) However, multivariat

03 +/- 0.96, B-TED: 1.74 +/- 1.6, P= 0.001). However, multivariate analysis did not show any significant difference between the two groups in terms of age,

gender, type of thyroid disease, duration of thyroid disease and TED, severity and activity of TED, smoking habit, and presentation of TED before or aft er the presentation of thyroid disease (0.1<P<1). Conclusion: This study did not find any significant difference between U-TED and B-TED in relation to the demographics, type of thyroid disease, associated findings, and severity and activity of TED.”
“Aim. Congenital diaphragmatic hernia remains a significant challenge for neonatologists and pediatric surgeons. Over the PFTα research buy last years, new therapeutic approaches, as high-frequency oscillatory ventilation, inhaled nitric oxide, permissive hypercapnia, extracorporeal membrane oxygenation, have been used for the management of these newborns. We conducted Napabucasin clinical trial a retrospective study of all infants who were managed for congenital

diaphragmatic hernia in our NICU in order to identify possible clinical characteristics which were predictive for survival.\n\nMethods. We reviewed a single institution’s experience with 42 consecutive neonates with congenital diaphragmatic hernia admitted to our NICU from 1993 to 2009.\n\nResults. Prenatal data and side of congenital diaphragmatic hernia were similar in survivors and no-survivors infants except for the lung-to-head ratio (LHR), which was higher and measured later in survivors than non-survivors. Multiple

regression analysis showed that a gestational age >= 39 weeks, Apgar score at 5 min >= 7, FiO(2)<0.35, MAP<13 cmH(2)O, OI<10 and AaDO(2) >282 before surgical repair, and the absence of persistent pulmonary hypoplasia were independent predictive factors of survival.\n\nConclusion. Our study suggests that the outcome of newborns with congenital diaphragmatic hernia still depends on the severity of lung hypoplasia, despite the different respiratory and therapeutical approaches.”
“Introduction: Immunotherapy represents an emerging modality of treatment utilized in patients CP-868596 ic50 with prostate cancer, among various other malignancies. Areas covered: Sipuleucel-T is an autologous active cellular immunotherapy that has demonstrated improved survival in patients with metastatic castration-resistant prostate cancer (mCRPC). The IMPACT trial led to the FDA approval of sipuleucel-T as first-line treatment for men with asymptomatic or minimally symptomatic mCRPC. Additional immunotherapies in cancer have shown promising results in clinical studies. These include ProstVac, which is a poxvirus vaccine targeting prostate-specific antigen, and cell cycle checkpoint inhibitors of cytotoxic T lymphocyte antigen-4 and programmed death-1 (PD-1) and its ligand (PD-L1).

Interestingly, the patient who presented with several rejection-s

Interestingly, the patient who presented with several rejection-suggesting incidents over this

period displayed a greater than twofold increase of both cell subsets. These GSK2126458 datasheet results suggest that CD4+CD25+CD127low/neg T(reg) and iNK T cells could be involved in the local control of organ rejection, by modulating immune responses in situ, in clinically stable patients. The measurement of these cell subsets in peripheral blood could be useful for non-invasive monitoring of heart transplant recipients, especially in the growing context of tolerance-induction trials.”
“The developmental origins of disease hypothesis have recently been expanded to include the early origins of lung disease, particularly early events that alter lung development. Intrauterine growth restriction (IUGR), preterm birth with the need for prolonged mechanical

ventilation, and maternal tobacco smoke (MTS) or nicotine exposure produce neonatal and adult lung disease. These perinatal insults are characterized by alterations in alveolar formation and changes in the expression of genes that regulate alveolarization, including IGF1 and PPAR gamma. A potential mechanism for such changes in gene expression is epigenetics. IGF1 and PPAR 5-Fluoracil solubility dmso gamma have altered epigenetic states in response to these perinatal insults. Identification of the specific epigenetic mechanisms involved in the developmental origin of lung disease may facilitate identification of molecular biomarkers with the potential to personalize respiratory disease risk assessment and treatment. The purpose of this review is to summarize what is known about the developmental origins of lung disease, the epigenetic contributions to lung disease, and areas that need further investigation. (C) 2011 Elsevier Inc. All rights reserved.”
“AIM: To evaluate relationship between ocular pseudoexfoliation syndrom(PXF) and sensory-neural find more hearing loss (SNHL).\n\nMETHODS: This prospective case-control

study was designed on patients who referred to a general ophthalmic clinic at Imam Khomeini Medical Center, Urmia, Iran (March 2010 through November 2010). On routine ophthalmic examination, patients diagnosed with ocular PXF were referred to the ENT department and, selected cases (after evaluating inclusion and exclusion criteria) were referred to Audiometric Department. Pure tone hearing threshold level (HTL) was measured at 1, 2, 3 kHz for each ear and was compared with International Standard (ISO 7029) median age associated hearing loss at 1, 2, 3 kHz (AAHL).\n\nRESULTS : Overall 21 of 50 patients (42.0%) had a higher HTL than the ISO 7029 median AAHL at 1, 2 and 3kHz, which included 14 ears of 23 patients in the male group (30.4%) and 21 ears of 27 patients in the female group (38.8%). Approximately 12.

w ) The results showed a significant decrease in the frequency o

w.). The results showed a significant decrease in the frequency of micronucleated polychromatic erythrocytes in animals treated with baccharin and doxorubicin compared to animals that received only doxorubicin. This reduction ranged from 39.8% to 50.7% in the micronucleus test. The extent of DNA damage in liver cells was significantly lower in animals treated with different concentrations of baccharin combined with methyl methanesulphonate in

comparison with the damage observed for animals treated only with https://www.selleckchem.com/products/lxh254.html methyl methanesulphonate. These differences resulted in a significant reduction in the extent of DNA damage, which ranged from 47.8% to 60.6%.”
“The prevalence of cardiovascular disease increases with advancing age. Although long-term exposure

to cardiovascular risk factors plays a major role in the etiopathogenesis of cardiovascular disease, intrinsic cardiac aging enhances the susceptibility to developing heart pathologies in late life. The progressive decline of cardiomyocyte mitochondrial function is considered a major mechanism underlying heart senescence. Damaged mitochondria not only produce less ATP but also generate increased amounts of reactive oxygen species and display a greater propensity to trigger apoptosis. Given the postmitotic nature of cardiomyocytes, the efficient removal of dysfunctional mitochondria is critical for the maintenance of cell homeostasis, Omipalisib ic50 because damaged organelles cannot be diluted by cell proliferation. The only known mechanism whereby mitochondria are turned over is through macroautophagy. The efficiency of this process declines with advancing age, which may play a critical

role in heart senescence and age-related cardiovascular disease. https://www.selleckchem.com/products/pexidartinib-plx3397.html The present review illustrates the putative mechanisms whereby alterations in the autophagic removal of damaged mitochondria intervene in the process of cardiac aging and in the pathogenesis of specific heart diseases that are especially prevalent in late life (eg, left ventricular hypertrophy, ischemic heart disease, heart failure, and diabetic cardiomyopathy). Interventions proposed to counteract cardiac aging through improvements in macroautophagy (eg, calorie restriction and calorie restriction mimetics) are also presented. (Circ Res. 2012;110:1125-1138.)”
“Gene targeting by single-stranded oligodeoxyribonucleotides (ssODNs) is a promising technique for introducing site-specific sequence alterations without affecting the genomic organization of the target locus. Here, we discuss the significant progress that has been made over the last 5 years in unraveling the mechanisms and reaction parameters underlying ssODN-mediated gene targeting. We will specifically focus on ssODN-mediated gene targeting in murine embryonic stem cells (ESCs) and the impact of the DNA mismatch repair (MMR) system on the targeting process.

All guidelines agree on stopping ongoing antidepressant medicatio

All guidelines agree on stopping ongoing antidepressant medication during mania. Combination therapy including Li or VPA with an AAP is suggested usually as second-line choice, sometimes

as first-choice treatment for severe mania. Carbamazepine is mostly suggested as second line and not recommended in combination. Other antiepileptic drugs are not recommended for the treatment of mania, although lamotrigine may be maintained if it was prescribed previously for the prevention of depressive episodes. Main sources of discrepancies among guidelines include benefit risk ratio issues ( how much priority is given to efficacy over AC220 ic50 safety and tolerability), starting with combination versus monotherapy, and how to deal with treatments which are more experience-based Histone Methyltransf inhibitor than evidence-based (i.e.: electroconvulsive therapy). (C) 2011 Elsevier B.V. All rights reserved.”
“Circadian systems are comprised of multiple proteins functioning together to produce feedback loops driving robust, approximately 24 hr rhythms. In all circadian systems, proteins in these loops are regulated through myriad physically and temporally distinct pottranslational modifications (PTMs) To better understand how PTMs impact a circadian oscillator, we implemented a proteomics-based approach by combining purification of endogenous FREQUENCY (FRQ) and its

interacting partners with quantitative mass spectrometry (MS). We identify and quantify time-of-day-specific protein-protein interactions in the clock and show how these provide a platform for temporal and physical separation between the dual roles of FRQ. Additionally, by unambiguously identifying over 75 phosphorylated residues, following their quantitative change over a circadian cycle,

and examining the phenotypes of strains that have lost these sites, we demonstrate how spatially and temporally regulated phosphorylation has opposing effects directly on overt circadian rhythms and FRQ stability.”
“A locally isolated Acinetobacter sp. Strain AQ5NOL selleck screening library 1 was encapsulated in gellan gum and its ability to degrade phenol was compared with the free cells. Optimal phenol degradation was achieved at gellan gum concentration of 0.75% (w/v), bead size of 3 mm diameter (estimated surface area of 28.26 mm(2)) and bead number of 300 per 100 ml medium. At phenol concentration of 100 mg l(-1), both free and immobilized bacteria exhibited similar rates of phenol degradation but at higher phenol concentrations, the immobilized bacteria exhibited a higher rate of degradation of phenol. The immobilized cells completely degrade phenol within 108, 216 and 240 h at 1,100, 1,500 and 1,900 mg l(-1) phenol, respectively, whereas free cells took 240 h to completely degrade phenol at 1,100 mg l(-1). However, the free cells were unable to completely degrade phenol at higher concentrations. Overall, the rates of phenol degradation by both immobilized and free bacteria decreased gradually as the phenol concentration was increased.