Contrast-enhanced ultrasonography was able to detect vascular cha

Contrast-enhanced ultrasonography was able to detect vascular changes induced by hyperadrenocorticism. Further studies are needed to evaluate whether reference ranges

for clinically normal dogs and dogs with PDH can be determined and applied in clinical settings. (Am J Vet Res 2013;74:417-425)”
“The band structure and sound attenuation of the triply periodic co-continuous composite materials with simple cubic lattice, body-centered cubic lattice, and face-centered cubic lattice consisting of PMMA and air are investigated using finite element method. Complete band gaps are found in these structures and the width of band gaps is depending on volume fraction. It is shown that the width of band gaps along different

directions in the first irreducible Brillouin zone enlarges as the volume fraction increases from 0.2 to 0.7. The largest complete band gap widths of the three types of co-continuous structures are 0.29, 0.54, and 0.55, respectively. As the complete band gaps appear in audible range of frequencies, these triply periodic co-continuous composite materials can be utilized to control noise. (C) 2013 AIP Publishing LLC.”
“Objective: To determine the current level of sensitization in healthy school children in Kuwait\n\nDesign: Prospective cross-sectional study\n\nSetting: Al-Rashid Allergy Center, Kuwait\n\nSubjects: Healthy school-children between the ages of 8-15 years\n\nIntervention: Skin prick test (SPT) and measurement of serum specific IgE levels\n\nMain Outcome Measures: Skin wheal diameter (> 3 mm) and IgE levels (> 0.35 KIU/l)\n\nResults: ACY-738 inhibitor 47% of children showed positive specific IgE levels and Bak apoptosis 38% showed a positive SPT to at least one allergen. Polysensitization was common in the population (IgE 32%, SPT 20%). One in three (31%) children showed sensitization to Bermuda Grass (IgE); around one in five showed sensitization

to Prosopis juliflora tree (20% IgE); grass mix (19% SPT); to cockroach (18% IgE, 12% SPT) and just slightly less to cat (15% IgE and SPT). One in 10 healthy children were sensitized to dog (11% IgE, 10% SPT); few to house dust mite (D pteronyssinus) (IgE 8%, SPT 4%); ascaris (IgE 7%). The lowest rates of sensitization were to Alternaria alternata (IgE 4%, SPT 2%); aspergillus (SPT 4%); and cladosporium (SPT 2%). Frequent, severe sensitization (Classes 3 – 6 for specific IgE) was found for Bermuda Grass (16%), prosopis tree (6%) and cat allergen (5%).\n\nConclusion: Kuwait may be an example of conflict between two aspects of public health endeavour in a desert environment. Practices that make the desert habitable, viz, aforestation and air-conditioning may be the same ones that encourage exposure to allergens, allergic sensitization and allergic disease.”
“BACKGROUND: Tumor necrosis factor- (TNF-) is not only a key regulator of inflammatory response but also an important pain modulator.

In this model the equator plane stays between the upper and lower

In this model the equator plane stays between the upper and lower jaw in the chewing surface. Thus, the upper jaw

remains in the upper hemisphere and the lower jaw in the lower hemisphere. The 0 degrees mark is rostral on the equator and is the description for a straight rostrocaudal radiographic direction. The first geographic coordinate describes the deviation from straight rostral in the horizontal equator level between 0 degrees and 180 degrees. The laterolateral direction has a 90 degrees deviation from rostral and is given the coordinate 90 degrees (no matter if the direction is right to left or left to right). The second geographic coordinate describes the angle of the BKM120 price x-ray beam towards the horizontal equator level. If the x-ray beam comes from dorsal, the numbers are positive between +1 degrees and +90 degrees. If the x-ray beam comes from ventral, the numbers are negative between -1 degrees and -90 degrees. In radiographs of the cheek teeth or structures of the head, the side with contact to the cassette is labeled right or left.”
“Objective: To date no diagnostic tool is yet available to objectively assess the in vivo biomechanical properties of the uterine cervix during gestation.\n\nMethods: We show the first clinical application of an aspiration device to assess the

in vivo biomechanical properties of the cervix in pregnancy with the aim to describe the physiological biomechanical changes throughout gestation in order to eventually detect pregnant women at risk for cervical insufficiency (CI).\n\nResults: Out of 15 aspiration measurements, 12 produced valid results. The stiffness values were in the range between 0.013 and 0.068 bar/mm. The results showed a good reproducibility of the aspiration test. In our previous test series on non-pregnant cervices our repetitive measurements showed a standard deviation of > 20% compared to <+/- 10% to our data on pregnant cervices. Stiffness values are decreasing with gestational age which indicates a progressive softening of cervical tissue towards the end of

HM781-36B pregnancy. Three pregnant women had two subsequent measurements within a time interval of four weeks. Decreasing stiffness values in the range of 20% were recorded.\n\nDiscussion: This preliminary study on the clinical practicability of aspiration tests showed promising results in terms of reproducibility (reliability) and clinical use (feasibility). Ongoing studies will provide further insights on its usefulness in clinical practice and in the detection of substantial changes of the cervix in pregnancy indicative for threatened preterm birth or cervical insufficiency. (c) 2009 Elsevier Ireland Ltd. All rights reserved.”
“Plastic greenhouse vegetable cultivation is rapidly expanding in China and elsewhere worldwide.

The theory takes into account long-range intersite

The theory takes into account long-range intersite CA4P correlations making use of an incremental cluster expansion in the medium. A generalized self-consistent coherent potential

is derived. It yields the momentum-dependent excitation spectra with high resolution. Numerical studies for the Hubbard model on a simple Cubic lattice at half filling show that the theory is applicable in a wide range of Coulomb interaction strength. In particular, it is found that the long-range antiferromagnetic correlations in the strong interaction regime cause shadow bands in the low-energy region and sub-peaks of the Mott-Hubbard bands.”
“BACKGROUND: High levels of free fatty acids (FFA) have been suggested to be one of the underlying mechanisms for adipose tissue

(AT) inflammation and dysfunction in obesity. Human AT produces several adipokines including monocyte chemoattractant protein-1 (MCP-1), which are involved in the pathogenesis of obesity-mediated inflammation. OBJECTIVE: In this study, we investigated the effects of lipopolysaccharide (LPS) and a panel of dietary FFA on MCP-1 gene and protein expression in adipocytes and macrophages. Furthermore, we investigated whether the effect of LPS and FFA GSK J4 research buy were mediated through the toll-like receptor 4 (TLR4). METHODS: 3T3-L1 adipocytes and THP-1 macrophages were incubated for 24 h with the following FFA: monounsaturated fatty acid (oleic acid), saturated fatty acid (palmitic acid) and trans fatty acid (elaidic acid; 500 mu M) with and without LPS (2 ng ml(-1)), and MCP-1 and TLR4 mRNA expression and MCP-1 protein secretion was determined. RESULTS: The results showed that LPS significantly increased MCP-1 and TLR4 expression and MCP-1 secretion in 3T3-L1 adipocytes, and that the MCP-1 expression was blocked by a TLR4 inhibitor (CLI095). this website The effects of the various FFA on MCP-1 mRNA expression and protein secretion in the adipocytes showed no significant changes either alone or in combination with LPS. In macrophages, palmitic acid increased MCP-1 mRNA expression by

1.8-fold (P smaller than 0.05), but oleic acid and elaidic acid had no effects. CONCLUSIONS: In conclusion, in 3T3-L1 adipocyte, the TLR4-agonist, LPS, stimulates the proinflammatory chemokine MCP-1. The different classes of FFA did not induce MCP-1 mRNA expression or protein secretion in the adipocytes, but the saturated FFA, palmitic acid, induced MCP-1 mRNA expression in macrophages, possibly because of the higher expression level of TLR4 in the macrophages than the adipocytes. Our results indicate that FFA may induce AT inflammation through proinflammatory stimulation of macrophages.”
“Purpose: To evaluate the two-year follow-up of patients with type 1 retinopathy of prematurity (ROP) who received intravitreal bevacizumab (IVB) as adjunctive treatment. Materials and methods: We conducted a longitudinal follow-up study of premature infants who received 0.

“Pulmonary intravascular macrophages (PIMs) are present in

“Pulmonary intravascular macrophages (PIMs) are present in species such as cattle, sheep and horse and promote acute lung inflammation (ALI). Rabbits are often used as a model of ALI but there is controversy about the presence of PIMs in these species. Rabbits were treated with 10 mg/kg of gadolinium chloride intravenously

(GC; n = 6) or saline (n = 6) followed by euthanasia at 48 h post-treatment to determine the presence of PIMs. In a subsequent study, rabbits were pre-treated with GC or 0.9 % saline followed by 100 mu g/kg of E. coli lipopolysaccharide intravenously 48 h later. Rabbits were euthanized 24 h post-LPS treatment. Light and electron microscopy showed that PIMs attached to the capillary endothelium and were positive AZD0530 Angiogenesis inhibitor for RAM-11 anti-macrophage selleck compound antibody. While GC treatment induced apoptotic PIMs, there was no difference in the PIM number between control

and GC-treated rabbits. Rabbits administered with LPS were 3.5 times more likely to die before the end of the 24-h period than those pre-treated with GC. Lung heterophil accumulation and IL-1 beta, TNF alpha and IL-6 mRNA expression were significantly higher in rabbits administered with LPS compared to those administered with GC before the LPS injection. PIMs from the LPS-treated rabbits were positive for TNF alpha. Lung, BAL and serum IL-8 and MCP-1 expression was not different between LPS rabbits with or without pre-treatment with GC. We conclude that rabbit lungs contain PIMs and that their depletion reduces endotoxin-induced lung inflammation. The presence of PIMs in rabbit lungs may need to be considered while using rabbit to model acute lung injury.”
“Attractive petals are an integral component of animal-pollinated

flowers and in many flowering plant species are restricted to the second floral whorl. Interestingly, multiple times during angiosperm evolution, petaloid characteristics LY3039478 ic50 have expanded to adjacent floral whorls or to extra-floral organs. Here, we investigate developmental characteristics of petaloid sepals in Rhodochiton atrosanguineum, a close relative of the model species Antirrhinum majus (snapdragon). We undertook this in two ways, first using scanning electron microscopy we investigate the micromorphology of petals and sepals, followed by expression studies of genes usually responsible for the formation of petaloid structures. From our data, we conclude that R. atrosanguineum petaloid sepals lack micromorphological characteristics of petals and that petaloid sepals did not evolve through regulatory evolution of B-class MADS box genes, which have been shown to specify second whorl petal identity in a number of model flowering plant species including snapdragon. These data, in conjunction with other studies, suggests multiple convergent pathways for the evolution of showy sepals.

Few faculty reported overt discrimination; however, more women th

Few faculty reported overt discrimination; however, more women than men perceived gender discrimination in promotion, salary, space/resources,

access to administrative staff, and graduate student/fellow assignment.\n\nConclusions\n\nWork-life and family-life factors served as obstacles to satisfaction and retention of the women faculty studied. Many of these factors reflect challenges attributable to subtle gender bias and the intersection of work and family life. The authors provide examples showing that BKM120 in vivo medical schools can implement policy changes that support faculty who must balance work and family responsibilities. Identification and elimination of gender bias in areas such as promotion, salary, and resource allocation is essential. Acad Med. 2009; 84:87-94.”
“Background: recently, there has been a shift towards

alternative childbirth services to increase access to skilled care during childbirth. Objective: this study aims to assess Rapamycin concentration the past 10 years of experience of the first Safe Delivery Posts (SDPs) established in Zahedan, Iran to determine the number of deliveries and the intrapartum transfer rates, and to examine the reasons why women choose to give birth at a Safe Delivery Post and not in one of the four large hospitals in Zahedan. Design: a mixed-methods research strategy was used for this study. In the quantitative phase, an analysis was performed on the existing data that are routinely collected in the health-care sector. In the qualitative phase,

a grounded theory approach was used to collect and analyse narrative data from in-depth interviews with women who had given birth to their children at the Safe Delivery Posts. Setting: women were selected from two Safe Delivery Posts in Zahedan city in Caspase activation southeast Iran. Participants: nineteen mothers who had given birth in the Safe Delivery Posts were interviewed. Findings: during the 10-year period, 22,753 low-risk women gave birth in the Safe Delivery Posts, according to the records. Of all the women who were admitted to the Safe Delivery Posts, on average 2.1% were transferred to the hospital during labour or the postpartum period. Three key categories emerged from the analysis: barriers to hospital use, opposition to home birth and finally, reasons for choosing the childbirth care provided by the SDPs. Key conclusion and implications for practice: implementing a model of midwifery care that offers the benefits of modern medical care and meets the needs of the local population is feasible and sustainable. This model of care reduces the cost of giving birth and ensures equitable access to care among vulnerable groups in Zahedan. (C) 2013 Elsevier Ltd. All rights reserved.

During the investigation, the benefit of using serology of H pyl

During the investigation, the benefit of using serology of H. pylori infection and serum pepsinogen I/II ratio of less than or equal to 3. instead of direct endoscopy. should also be considered for the selection of a high risk group of gastric cancer in Korea. Recently, appropriate screening and accurate diagnosis of early gastric cancer has become one Topoisomerase inhibitor of the most important issues.”
“The aim of this work was to determine PAs levels in pith tissues

and callus cultures from haploid and diploid tobacco plants, explanted from the apical and basal regions of the stem. These explants were cultured in an RM-64 medium supplied with IAA and kinetin, under light or in the dark, during successive subcultures. PAs levels followed a basipetal decrease in diploid and an increase in haploid, pith tissues. A similar

pattern of total PAs (free + conjugated) was observed for the callus of diploid and haploid plants maintained in the light, and for the haploid callus in the dark, whereas the diploid callus in the dark showed a constant increase in total PAs levels until the end of culture. The PA increase in the diploid callus in the dark was related to free Put levels increase. The ploidy status of the plants could express different PA gradients together with the plant pith and in vitro callus cultures.”
“Previous studies with small sample size have shown that cilostazol this website can reduce the risk of cerebral vasospasm in patients with aneurysmal subarachnoid hemorrhage (SAH). The purpose of this study was to determine whether cilostazol

is effective in patients with aneurysmal SAH. Studies investigating the effect of cilostazol in patients with aneurysmal SAH were identified using without language or publication-type restrictions. We used the random-effect model to combine data. Pooled risk ratios (RR) and 95% confidence intervals (CI) were calculated. Two randomized controlled trials and two quasi-randomized controlled trials with a total of 340 patients were included. The incidence of symptomatic vasospasm (RR = 0.47; 95% CI, 0.31-0.72; p smaller than 0.001), severe vasospasm (RR = 0.48; 95% CI, 0.28-0.82; p = 0.007), vasospasm-related new cerebral infarctions (RR = 0.38; 95% Selleck ACY-738 CI, 0.22-0.67; p = 0.001), and poor outcome (RR = 0.57; 95% CI, 0.37-0.88; p = 0.011) were significantly lower in the cilostazol group. The numbers needed to treat for these outcomes were 6.4, 6.3, 5.7, and 5.4, respectively. Mortality rate differences between the two groups were insignificant. No statistical heterogeneity was found for all outcomes. These results show that cilostazol can decrease the incidence of symptomatic vasospasm, severe vasospasm, vasospasm-related new cerebral infarctions, and poor outcome in patients with aneurysmal SAH. (C) 2013 Elsevier B.V. All rights reserved.”
“TiO2-based varistor ceramics doped with 0.25-1.

In comparison to wild-type cells, B cells expressing a mutant IgD

In comparison to wild-type cells, B cells expressing a mutant IgD- or IgM-BCR containing a C-terminally truncated Ig-alpha respond to pervanadate stimulation with markedly reduced tyrosine phosphorylation of SHIP1 and augmented activation

of protein kinase B. This indicates that SHIP1 is capable of interacting with the C-terminus of Ig-alpha. Employing a system of fluorescence resonance energy transfer in S2 cells, we can clearly demonstrate interaction between the SH2-domain of SHIP1 and Ig-alpha. Furthermore, a fluorescently labeled SH2-domain of SHIP1 translocates to the plasma membrane in an Ig-alpha-dependent manner. Interestingly, whereas the SHIP1 SH2-domain can be pulled-down with phospho-peptides corresponding to the immunoreceptor A-1155463 nmr tyrosine-based activation motif (ITAM) of Ig-alpha from detergent lysates, no interaction between full-length SHIM and the phosphorylated Ig-alpha ITAM can be observed. Further studies show that the SH2-domain of SHIP1 can bind to the C-terminus of the SHIP1 molecule, most probably by inter- as well

as intra-molecular means, and that this interaction regulates the association between different forms of SHIP1 and Ig-alpha. (C) 2011 Elsevier B.V. All rights reserved.”
“A series of chromone derivatives bearing diverse dithiocarbamate moieties were designed and synthesized via a three-component reaction protocol. Their in vitro antitumor activities were evaluated by MTT method against Bcl-2 cleavage HCCLM-7, Hela, MDA-MB-435S, SW-480, Hep-2 selleck compound and MCF-7. Two compounds (3-chloro-4-oxo-4H-chromen-2-yl)methyl piperidine-1-carbodithioate (Iq) and (6-chloro-4-oxo-4H-chromen-3yl)methyl piperidine-1-carbodithioate (IIu), were identified as the most promising candidate due to their high potency and broad-spectrum. Further flow-activated cell sorting analysis revealed that compounds Iq and IIu arrest the cell cycle of SW-480 and MDA-MB-435s both in G(2)/M phase with dose-dependent effect and might display apoptosis-inducing effect on these tumor

cell lines. (C) 2009 Elsevier Masson SAS. All rights reserved.”
“Multi-MeV beams of light ions have been produced using the 300 picosecond, kJ-class iodine laser, operating at the Prague Asterix Laser System facility in Prague. Real-time ion diagnostics have been performed by the use of various time-of-flight (TOF) detectors: ion collectors (ICs) with and without absorber thin films, new prototypes of single-crystal diamond and silicon carbide detectors, and an electrostatic ion mass spectrometer (IEA). In order to suppress the long photopeak induced by soft X-rays and to avoid the overlap with the signal from ultrafast particles, the ICs have been shielded with Al foil filters. The application of large-bandgap semiconductor detectors (>3 eV) ensured cutting of the plasma-emitted visible and soft-UV radiation and enhancing the sensitivity to the very fast proton/ion beams.

Recently, a tissue-specific gene expression template (GET) was de

Recently, a tissue-specific gene expression template (GET) was derived from microarray data that accurately characterized multiple normal human tissues. We used the GET to examine spatial, temporal, and a pathological condition (TOF) within a single

organ, the heart. The GET, as previously defined, generally identified temporal and spatial differences in the cardiac tissue. Differences in Selleckchem AZD8186 the stoichiometry of the GET reflected the severe developmental disturbance associated with TOF. Our analysis suggests that the homoeostatic equilibrium assessed by the GET at the inter-organ level is generally maintained at the intra-organ level as well.”
“The redox proteome consists of reversible and irreversible covalent modifications that link redox metabolism to biologic structure and function. These modifications, Selleckchem ALK inhibitor especially of Cys, function at the molecular level in protein folding and maturation, catalytic activity, signaling, and macromolecular interactions and at the macroscopic level in control of secretion and cell shape. Interaction of the redox proteome with redox-active chemicals is central to macromolecular structure, regulation, and signaling during the life cycle and has a central role in

the tolerance and adaptability to diet and environmental challenges.”
“Gastrin-releasing peptide (GRP) is a kind of neural peptide that plays an important role in the growth of various human cancer cells. However, very little is known about the relationship between GRP and apoptosis in human hepatocellular carcinoma BVD-523 cells. This study investigated the influences of GRP on apoptosis, as well as the mechanism that triggers HepG2 growth. The effects of GRP on cell proliferation were examined by analysis of lactate dehydrogenase. The GRP, caspase 12, and CHOP protein were detected in HepG2 and HL-7702 cells by Western blot, and endoplasmic reticulum (ER) stress-related mRNA transcription was detected by reverse transcription polymerase chain reaction. To explore the specific pathway by which GRP induces the cell growth, we investigated the apoptosis-related pathway. The expression of GRP in HL-7702 cells inhibited tunicamycin triggered ER stress-associated

XBP1, ATF4, and TRAF2 mRNA transcription. Three main ER stress-unfolded protein response pathways proteins, including spliced XBP1, cleaved ATF6, IRE1-alpha, PERK, and eIF2-alpha, were increased significantly. Furthermore, the cleaved caspase 12 activation was blocked and CHOP expression was inhibited when GRP was expressed either in HepG2 or HL-7702 cells. In conclusion, GRP triggers the growth of HepG2 ce lls through blocking the ER stress-mediated pathway. DOI: 10.1134/S0006297913010136″
“There is accumulating evidence that brain-derived neurotrophic factor (BDNF) plays a critical role in the pathophysiology of depression. Decreased serum levels have been reported in major depression, and a correlation between BDNF reduction and the severity of the disease was found.

Synchronous malignancies in the head and neck area and the upper

Synchronous malignancies in the head and neck area and the upper aerodigestive tract are well established. However, synchronous malignancy in male breast is reportedly uncommon. Our case is unique for the fact that a random synchronous dual malignancy of base DAPT order of tongue and breast in a male patient was detected during a whole body F-18-FDG PET/CT imaging.”
“We introduce a model of dyadic social interactions and establish its correspondence with relational models theory (RMT), a theory of human social relationships. RMT posits four elementary models of

relationships governing human interactions, singly or in combination: Communal Sharing, Authority Ranking, Equality Matching, and Market Pricing. To these are added the limiting cases of asocial and null interactions, whereby people do not coordinate with reference

to any shared principle. Our model is rooted in the observation that each individual in a dyadic interaction can do either the same thing as the other individual, a different thing or nothing at all. To represent these three possibilities, we consider two individuals that can each act in one out of three ways toward the other: perform a social action X or Y, or alternatively do nothing. We demonstrate that the relationships generated by this model aggregate into six exhaustive and disjoint categories. We propose that four of these categories match the four relational

models, while the remaining two correspond to the asocial and null interactions defined CHIR-99021 order in RMT. We generalize our results to the presence of N social actions. We infer that the four relational models form an exhaustive set of all possible dyadic relationships based on social coordination. Hence, we contribute to RMT by offering an answer to the question of why there could exist just four relational models. In addition, we discuss how to use our representation to analyze data sets of dyadic social interactions, and how social actions may be valued and matched by the agents.”
“Although the human brain is exceptional in size and information processing capabilities, Selleck Adriamycin it is similar to other mammals with regard to the factors that promote its optimal performance. Three such factors are the challenges of physical exercise, food deprivation/fasting, and social/intellectual engagement. Because it evolved, in part, for success in seeking and acquiring food, the brain functions best when the individual is hungry and physically active, as typified by the hungry lion stalking and chasing its prey. Indeed, studies of animal models and human subjects demonstrate robust beneficial effects of regular exercise and intermittent energy restriction/fasting on cognitive function and mood, particularly in the contexts of aging and associated neurodegenerative disorders.

v ) and oral administration both at 5 mg/kg, were


v.) and oral administration both at 5 mg/kg, were

determined before and after enzymatic hydrolysis with beta-glucuronidase/sulphatase, respectively, by a HPLC-UV method. The results showed that free ICT plasma concentration after i.v. dose was rapidly decreased with average t(1/2,) (lambda) of 0.43 h, while the total ICT concentration was decreased slowly with t(1/2,) (lambda) of 6.86 h. The area under the curve of ICT conjugated metabolites was about 11-fold higher than that of free ICT. The majority of ICT in the body was excreted from the bile with 68.05% of dose over 8h after iv. dosing, in which only 0.15% was in parent form. While very little amount of ICT was excreted from the urine with 3.01% of dose over 24h, in which the parent form was 0.62%. After oral administration, very little amount of parent ICT was detected click here only

in 0.5, 1 or 2 h plasma samples with the concentration less than LOQ however, its total plasma concentration after enzymatic hydrolysis treatment was at relative high level with average maximum concentration of 0.49 mu g/ml achieved at 1 h post dose. The oral bioavailability of ICT was NCT-501 order 35% of dose, estimated by its total plasma drug concentrations. It is concluded that ICT can be easily absorbed into the body, and then rapidly conversed to its conjugated metabolites, and finally removed from the body mainly by biliary excretion. (C) 2012 Elsevier GmbH. All rights reserved.”
“For the first time cellular uptake studies of cisplatin were addressed by elemental speciation analysis at biological relevant concentration levels, i.e. drug exposure concentration ranging at 5 mu M. The quantification of intact, free cisplatin AZD4547 clinical trial in cell models was investigated by two complementary LC-ICP-MS methods, using chromatographic separations based on pentafluorophenylpropyl

siloxane bonded stationary phases (Discovery HS F5) and on porous graphitized carbon (Hypercarb). Limits of detection for cisplatin were 0.013 and 0.11 mu g L(-1) (given as total drug), respectively. Cisplatin-once entering the cancer cell-is known to undergo reactions with proteins and peptides in the cytosol by forming adducts. Hence, due to the limited selectivity of one-dimensional LC separation, efficient protein removal was a prerequisite for accurate quantification in such complex biological matrix as cell lysate. Centrifugal filtration (cut-off of 10 kDa) was the method of choice. Exposure of two different cell models to 5 mu M cisplatin for 24 hours resulted in cisplatin concentration levels ranging between 0.2 and 1.5 mu g g(-1) protein. Despite the poor recovery of the columns regarding total Pt in filtrated samples, the accuracy of cisplatin quantification was given, which was shown via species specific IDMS and standard addition.