The lack of information regarding dementia status also brings a m

The lack of information regarding dementia status also brings a more general concern in understanding the literature, as it makes it difficult to ascertain whether there are interventions that work better with certain subgroups of dementia progression. On a practical level, this information would be helpful for those working in residential care homes who are considering implementing such interventions and who need to know what

might work best for the specific residents they care for. Future studies in this area should use clear eligibility criteria find more (including details regarding dementia diagnosis), use power calculations to estimate the necessary sample size, monitor and report compliance with the intervention, register any harms, and ensure the reliability and validity of the measures used are clearly reported. Future research would also benefit from monitoring more positive behaviors, such as social engagement, mealtime independence, and conversation, to mention only a few. Suggested study designs would include larger controlled trials and cluster-randomized controlled trials to add weight and clarity to existing evidence. There is evidence to suggest that people with dementia display more agitated behaviors when they feel anxious and that mealtimes

can be particularly distressing.24 this website The evidence in our review suggests that simple and inexpensive interventions can help to alleviate agitated behaviors. Similar mealtime interventions have been shown to improve weight gain and nutritional status in general populations of elderly people in residential care.8 and 13

This emphasizes the important role mealtime interventions could play in improving overall well-being and the experience of residents with dementia in nursing and residential care, as suggested by Bostrom and colleagues.10 As residential care services are increasingly expected to be able to provide appropriate care for people with a range of dementia symptoms, small and unobtrusive interventions, such as music or simple enhancement to the G protein-coupled receptor kinase dining environment, as described in this review, could help to improve the dementia-related behavioral problems. Exploring whether the positive effects of interventions identified in this review are replicable in different contexts, and whether effects on behavior are more long lasting than at meal times, are important research questions. Overall, our review helps to inform debate about the use of nonpharmacological interventions to improve behavioral symptoms in elderly people with dementia.30 and 31 Mealtime interventions may improve the general residential care environment and benefit both residents and carers alike, a key aim highlighted by the UK government’s Dementia Challenge program (http://dementiachallenge.dh.gov.uk/).

2D) differ only little (mean saccade durations: 32 1 ms, 31 0 ms,

2D) differ only little (mean saccade durations: 32.1 ms, 31.0 ms, and, 33.8 ms for monkeys D, M, and S, respectively). In a next step we investigated how the eye movements of the three monkeys were spatially distributed on the viewed images, and if these also show differences between monkeys D and M, and S. The spatial distribution on one specific image was derived from eye movements across

all presentations of the image. We observed that the spatial distributions of fixations of monkeys D and M exhibit dense spatial clusters that are related to conspicuous objects in the underlying CH5424802 molecular weight images (see examples for four different images in Fig. 3). The positions of the clusters are qualitatively similar for both monkeys for the same image, but are qualitatively different for each individual image (Fig. 3, columns 1, 2). However, the spatial fixation distributions of monkey S are unique: more than 90% of his fixations are evenly distributed inside a large cluster in the lower left quadrant of the images. This pattern selleck inhibitor is conserved across different images, and seems independent of the content of the images (Fig. 3, column 3), indicating that the eye movements of this monkey were not related to the images. It is unlikely that the differences in fixation duration

and of the exploration patterns of monkey S were due to a physiological dysfunction of his oculomotor system, since his saccade durations were very much in agreement with the other monkeys (Fig. 2D), indicating an intact saccade generation mechanism. Inspection of the fixations on images containing only a fixation spot, routinely presented just before each natural image to detect potential artifacts and eye calibration issues, shows that monkey S did fixate on the fixation spot within the required limits. Therefore we concluded that the monkey adopted an unusual strategy to get rewarded, deliberately gazing over the images without paying attention to the images contents. We include data from this animal

both as a comparison to the other monkeys, and as a potential methodological issue for further studies. For monkeys D and M, we assume that each of the spatial fixation clusters represents a subjective ROI. The position of subjective ROIs on an individual image is ADP ribosylation factor likely to depend on at least two factors: a bottom–up image feature driven component and a top–down attentional factor. To explore the contribution of the bottom–up component on the spatial positions of the subjective ROIs, we compare in a next step the similarity of the map of the fixations with the saliency map of the respective image. We computed the saliency maps of the images based on the model described by Walther and Koch (2006) (see examples in Fig. 4A). Simultaneously we computed the fixation maps for each image and monkey by down-sampling the original 800 × 600 pixels-images to 30 × 40 pixels-images and normalized correspondingly the original fixation distribution (details in Section 4.4).

Hence, as no other MR-related measure discriminated between group

Hence, as no other MR-related measure discriminated between groups, counting-range slope findings seem to be related to inhibition ability and not to MR function. It is important to point out that there is substantial variation across studies in defining children with DD due to the fact that there is no agreed definition of DD. The range of cutoffs used to define DD in demographic studies ranges from performance

below the 3rd percentile to performance selleckchem below the 25th percentile (2SD–.68SD below the mean; for review see Devine et al., 2013). Here we used very stringent criteria to assure that children only had mathematical difficulties. We screened 1004 children and diagnosed DD if performance on two standardized mathematical measures was worse than 1SD while there was no ADHD and dyslexia, verbal IQ/reading was normal on four different tests and non-verbal IQ was normal on two tests. For example, Price et al. (2007) screened 55 children and WISC block-design performance differed by more than 1SD between DD and controls. In Piazza et al. (2010) about half the DD group was diagnosed with dyslexia. Mussolin et al. (2010a) screened 187 children and diagnosed DD if performance was worse than −1SD (15th percentile) on a multiplication test. However, multiplication relies heavily on verbal memory (Ashcraft, 1982). Mazzocco et al. (2011) screened

161 children and diagnosed 10 children below −1.3SD (10th percentile) with DD and children below −.65SD (25th percentile) as low maths achievers without check details using any other criteria. Various tests were used as covariates in analyses. However, the tests were recorded in various years during a 7-year long period and as noted above, ANCOVAs cannot ‘correct for’ major differences along independent variables (Miller and Chapman, 2001 and Porter and Raudenbush, 1987). Obviously, definition and measurement discrepancies can contribute to disagreeing findings across studies. In summary, there is evidence that IPS morphology and perhaps

function differ between DD and control participants ifoxetine (Isaacs et al., 2001, Rotzer et al., 2008, Price et al., 2007 and Mussolin et al., 2010b). However, there is insufficient evidence for the argument that IPS dysfunction in DD can be linked to MR dysfunction: (1) Only one out of six fMRI studies found supporting behavioral data (Price et al., 2007). (2) The frequently used dot comparison task is seriously compromised by non-numerical confounds (Gebuis and Reynvoet, 2012 and Gebuis and Reynvoet, 2012; Szűcs et al., 2013). (3) Several behavioral and fMRI DD studies focusing on the MR theory of DD do not have non-numerical control conditions. (4) Adding to several negative findings (see above) our study used several measures of the MR but could not detect any clear MR impairment effects in DD.

The Societies supporting bone research

all benefited from

The Societies supporting bone research

all benefited from Greg’s leadership and wisdom. He was always a strong advocate for his views, and these views always represented Entinostat mouse better ways to foster and communicate good science. He was active in promoting opportunities for interaction and for strengthening the impact of the bone biology community. As secretary-treasurer of ASBMR, he helped to restructure that organization and strengthen its base of scientists and clinicians. Greg was a real leader and role model for young scientists and a man of great integrity, was elected President of ASBMR and of IBMS, providing a strong guiding hand for the latter Society through a time of change, Chair of the Research Grants’ Committee and a Board member of the National Osteoporosis Foundation, and co-founder of the Cancer and Bone Society and later its President. He served for many years on Editorial Boards of several major journals and received many awards and distinctions, including

the Fuller Albright, William F. Neuman Awards of ASBMR, and the Pieter Gaillard Award of IBMS. In 2006 he came to establish a new group at Vanderbilt University to study bone biology and particularly focus on how the skeleton affects cancer growth. It was a bold move for someone 63 years of age, but entirely consistent with his adventurous and innovative spirit, and undertaken at a time of great scientific productivity. He did this with remarkable success, recruiting first class Faculty Bacterial neuraminidase and rapidly establishing productive collaborations within Vanderbilt that set the scene for real progress. The continued success of the Vanderbilt Belnacasan cost Center in Bone Biology will be part of the enduring monument that comprises Greg Mundy’s great career. Despite the physical limitations imposed by his illness that began in late 2008, Greg was determined to live life to the full, with the courage and indomitable spirit that were typical of him. He continued worked throughout 2009, full of ideas and plans, speaking at the IBMS and CABS

Meetings in Sydney in March, and as late as December giving talks at the American Society of Hematology Meeting in New Orleans and the Breast Cancer Conference in San Antonio. Despite working overseas for nearly 40 years, there was never any doubt about Greg’s origin – the accent and demeanor remained unmistakably Australian. For all said here about Greg’s achievements, he was above all a family man, with great devotion to his wife, Helen, who traveled with him much, understood his work and was his very valued critic, and great pride in his children. Greg’s family provided wonderful support at home during his final illness, which he accepted with great courage, grace and dignity that were inspirational. Greg is survived by Helen, his wife of 43 years, his children, sons Gavin and Ben, daughter Jennifer, and sister, Jan Tarrant. “
“In Fig.

At the tip of the chin there was one well-developed barbel The c

At the tip of the chin there was one well-developed barbel. The caudal fin was vertically straight. C59 wnt price The fish had three well-separated dorsal fins and two well-separated anal fins. There were no hard rays in these fins. The readily visible pale lateral line arched over the pectoral fins and extended well onto the head. The body was covered with fine, deeply rooted cycloidal scales. The terminal mouth was relatively large with the lower jaw (mandible) shorter than the upper one (maxilla). The eyes were of medium size. The stomach of this fish was about 60% full, and the content comprised mostly benthic organisms. About

50% of the stomach content consisted of brittle stars – echinoderms from the class Ophiuroidea. The next most important components were opossum shrimps of the genus Neomysis, (Gammaridae, Mysidacea). Other, less important components of the diet were edible or brown crabs (Cancer pagurus), vascular plants, algae and detritus. This is not the typical diet of normally coloured cod in this region. Generally, the North Sea cod consumes a variety of fish prey (up to 59% of the stomach content weight) and only occasionally eats other food. For example, echinoderms were found only in 10.4% of stomachs, making up 2.6% by weight of the diet ( Kikkert, 1993 and Magnussen, 2011). The colour of this ‘brown’ cod could be related to the atypical diet, 50% of which consisted of brittle

stars and other benthic invertebrates. Morris & Green (2002) suggested that the similar brown colour of the north-west Atlantic cod from selleck chemical Gilbert Bay was related to their diet, which was composed mainly of benthic invertebrates such as Mysidacea, Amphipoda and some crab species. According to Gosse & Wroblewski

(2004) and Sherwood & Grabowski (2012) the brown colour of the cod’s skin that is characteristic of the North American coastal zone populations is related to the diet rich in carotenoids, found in marine benthic invertebrates. The carotenoids leutin and taraxanthin were found to be present in the skin of the fish specimen under scrutiny here ( Goodwin 1950). It has been found that the combination of carotenoids and proteins can impart a brown colour to the skin of fish ( Fox, 1976 and Ahilan and Prince Jeyaseelan, 2001). Also, the colour of fish skin may change following the consumption of plant-synthesised Pomalidomide research buy carotenoids ( Bagnara & Hadley 1973). The fact that a cod with this unique brownish-red colouration was caught in the North Sea suggests that, as in the case of the north-west Atlantic cod, fish of such a colour may become more common in the near future. It would be interesting to investigate the reasons for the appearance of this unique colouration in cod fish and to analyse in detail their growth, condition and population structure on a larger number of individuals. “
“The beneficial effects of eccentric (ECC) training (contraction with active muscle lengthening) are well established.

7, the Y-axis label for the top graph should be “TDN (μM)” and th

7, the Y-axis label for the top graph should be “TDN (μM)” and the X-axis label should

be “DIN (μM)”. The authors regret any inconvenience selleck kinase inhibitor caused by these corrections. “
“Halogenated organic compounds (halocarbons) arise from two independent processes: human industrial activities and biogenic processes in the ocean. These compounds are critical to the atmosphere, as they play an essential role in the depletion of ozone in polar regions, which in turn has an important role in surface ecology (Karentz, 1991) and climate change (Thompson and Solomon, 2002), since ozone depletion buffers Antarctic climate warming induced by increased carbon dioxide concentrations. However, we know surprisingly little about the vertical and horizontal

distribution of halocarbons in the ocean or their relationship to biological processes. This is particularly true for the Antarctic, where few multidisciplinary studies have investigated the biophysical interactions that mediate halocarbon concentrations and the rates of their turnover. The waters of the Southern Ocean are extremely variable both in time and space. Broad temporal patterns are notable for the wax and wane of pack ice (Comiso and Nishio, 2008), but even within the growing season, substantial temporal variations on scales of hours, days, weeks and months in chemical and biological properties occur (Smith et al., 2011a). Decadal changes in ice concentrations have been observed (Cavalieri Ganetespib in vivo et al., 2004 and Parkinson, 2004), and biophysical responses to regional reductions in ice cover have been noted (Montes-Hugo et al., 2009). The Ross Sea is the most productive continental shelf in (-)-p-Bromotetramisole Oxalate the Antarctic, but the Amundsen Sea also

shows very high productivity (Arrigo and van Dijken, 2004 and Smith and Comiso, 2008). Both regions are strongly influenced by the inflow of circumpolar deep water onto the shelves through troughs (Dinniman et al., 2011), but these deep intrusions rarely reach the surface in the Amundsen Sea, whereas they are mixed into the surface layer in the Ross Sea, primarily during winter in the West (Dinniman et al., 2011). The Ross Sea has five distinct water masses (Orsi and Wiederwohl, 2009), whereas the Amundsen Sea is characterized by only three (Fragoso and Smith, 2012). Phytoplankton in the Ross Sea are characterized by two functional groups: haptophytes, dominated by Phaeocystis antarctica, and diatoms. P. antarctica blooms largely during austral spring and dominates the biomass through the end of December, when it normally rapidly disappears, and diatom growth continues. However, substantial interannual variations occur ( Peloquin and Smith, 2007 and Smith et al., 2011a), and the fraction of annual production attributable to diatoms ranges from 13 to 57% ( Smith et al., 2011a). Other functional groups are observed (e.g., dinoflagellates, silicoflagellates, cryptomonads), but are much more restricted in time and space.

Measures of capacity predict individual differences in cognitive

Measures of capacity predict individual differences in cognitive ability, including scholastic aptitude, intelligence, and aging-related cognitive change 1 and 2. Moreover, changes in working memory capacity accompany neurological and psychiatric disease [3] and may underlie behavioral Venetoclax research buy and cognitive deficits associated with these disorders [4]. However, just as the world is dynamic, so is the working memory system adapted

to address these dynamics. Thus, control processes are required in order to rapidly and selectively store information in memory (input control), to rapidly and selectively deploy subsets of that information for use in behavior (output control), and to selectively eliminate an obsolete representation from memory when its predicted utility declines (reallocation). Such control functions would seem to be crucial for strategically making use of capacity-limited working memory. And indeed, though less understood, individual differences in these control processes could be equally or even more important than the size of a static capacity for intellectual ability. Though still in its early stages, the last few years have yielded rapid advances in our understanding of how the brain solves the input, output, and allocation control problems facing working memory. These experiments have associated all three functions

with interactions between frontal and basal HSP phosphorylation ganglia systems. Below, we review this work to outline an account of how the brain manages working memory. There is a clear parallel between the problems addressed by working memory control processes ADP ribosylation factor and the fundamental

challenges faced by an animal’s motor system. Consider the task of hunting for dinner. For example, a predator must program motor actions on the basis of transiently observed information about prey (input control); maintain these programs until the time is right, enacting only the most appropriate motor program at that time (output control); and finally, refrain from perseveratively considering outdated motor programs, should the prey escape (reallocation; Figure 1a). Thus, demands on selective encoding, maintenance, utilization, and clearing of information face a variety of species. This similarity motivates the search for neural solutions that might also be shared across species. Indeed, recent phylogenetic analyses show that the basal ganglia (BG) has been highly conserved evolutionarily — all its major structures preserved since their debut in an unknown ancestor common to all vertebrates [5]. This conservation of structure may attest to the BG’s efficacy in solving the action selection problems faced by many species. One way to describe the dynamics of this selection function is as a gate that regulates the passage of information from one neural circuit to another [6], such as in the case of motor selection, between thalamus and motor cortex.

1, 17% v/v ethanol and -3 °C and collected by centrifugation The

1, 17% v/v ethanol and -3 °C and collected by centrifugation. The B + 1 paste contains SAP and CRP at about 500-900 mg/kg

and 10-20 mg/kg respectively, reflecting their respective concentrations in normal human plasma of about 20-40 mg/L selleck chemicals llc and 0.8 mg/L. The pentraxins were isolated from 38 kg of B + 1 paste by solubilization in 10 mM Trometamol, 140 mM NaCl, 1 mM EDTA, pH 8.0, fractionation on DEAE Sephadex and then calcium dependent affinity chromatography on phosphoethanolamine covalently immobilized on Sepharose, as previously described (Pontet et al., 1978, de Beer and Pepys, 1982, Hawkins et al., 1991 and Carlucci et al., 2010). Briefly, the extracted B + 1 paste was depth filtered on a Millipore CE15 filter before adding 5% v/v of 0.2 M EDTA, pH 7.0 and mixing 437 kg Tanespimycin in vivo of the solution with 6 kg of dry DEAE Sephadex which had been swollen in distilled water and then equilibrated with 10 mM Trometamol, 140 mM NaCl, 1 mM EDTA, pH 8.0, making a wet weight of gel of ~ 100 kg. After 1 h at room temperature the DEAE was washed with 10 mM Trometamol, 140 mM NaCl, 1 mM EDTA,

pH 8.0, to remove unbound proteins before eluting the bound proteins with 2 M NaCl. All these steps were conducted at 8-15 °C. Trometamol (100 mM) and CaCl2 (50 mM) solutions were added to the eluate to yield a final concentration of 10 mM Trometamol, 5 mM CaCl2 at pH 8.0 before sequential filtration at 20 °C through a Pall Preflow UB filter followed by a Pall Flurodyne II 0.45 μ filter (Pall Corporation). The filtrate was then subjected to solvent‐detergent treatment with polysorbate 20 (8.8 g/L) and tri‐n‐butyl phosphate (2.45 g/L) for 120 min at 22-26 °C. This virus inactivation procedure was prospectively validated using HIV and independently audited. The process was also concurrently validated using three other enveloped viruses: sindbis, bovine viral diarrhea virus (BVDV) and infectious bovine rhinotracheitis virus (IBRV). The reductions in virus titers achieved were > 5.3

logs for HIV, > 7.0 logs for sindbis, > 4.0 logs for BVDV and > 6.4 logs for IBRV, providing good assurance that the solvent‐detergent step would be effective against HIV1/2 and HCV if they were present. There is no universally accepted model for HBV, but solvent detergent DNA ligase is also expected to be very effective against this lipid‐enveloped virus. The 414 kg eluate from DEAE was then mixed with 7 L of phosphoethanolamine-Sepharose which was synthesized using NHS‐activated Sepharose Fast Flow according to the manufacturer’s instructions (GE Healthcare). After 2.5 h at room temperature to enable the SAP and CRP to bind to the immobilized phosphoethanolamine, the fluids were removed by filtration and the resin was washed with 10 mM Trometamol, 140 mM NaCl, 2 mM CaCl2, pH 8.0 until no further protein eluted.

The latter two complexes were inactive

The latter two complexes were inactive. PD-0332991 solubility dmso The kinetic study using the LD technique showed that the cleavage of dsDNA by the Cu(bpy)2 complex consists of two first order reactions. The first is proposed to reflect the scission of one strand, whereas the slow reaction is due to the cleavage of the complementary strand near the first cleaved site. The reactive oxygen species is the oxygen radical which is produced by oxidation of the central Cu(II) ion. This study was supported by the National Research Foundation (grant nos. 2012-008875 conferred to S.K. Kim and SRC program 2011-0001335 to J. Kim).


“Current Opinion in Chemical Biology 2014, 19:25–33 This review comes from a themed issue on Biocatalysis and biotransformation Edited by Jeffrey C Moore and Uwe T Bornscheuer For a complete overview see the Issue and the Editorial Available online 4th January 2014 1367-5931/$ – see front matter, © 2013 The

Authors. Published by Elsevier Ltd. All rights reserved. http://dx.doi.org/10.1016/j.cbpa.2013.12.010 The formation of carbon-carbon bonds is central to organic chemistry and the aldol condensation [1, 2, 3 and 4], the reaction of two carbonyl compounds to generate a new β-hydroxyl carbonyl compound, is an important tool in building up complexity of organic molecules, IDO inhibitor since up to two new stereogenic centres are made during the formation of the new C–C bond. Aldol structural units Niclosamide are found in many naturally occurring molecules and are the result of reactions catalysed by the aldolase family of enzymes. These enzymes convert their substrates into the aldol products in high yield with high specificity under mild conditions,

but also with great control over the relative and absolute configurations of the new stereogenic centres created. These properties make aldolase-catalysed routes attractive for the production of biologically significant compounds, as these tend to contain multiple functional groups and are often water-soluble making conventional synthetic routes more difficult [5]. However, naturally occurring aldolases do not exist for many industrially important reactions and protein engineering, directed evolution and de novo enzyme design [ 6, 7, 8, 9 and 10] have all been used to alter properties such as stability, substrate specificity and stereoselectivity to produce tailor made aldolases for use as biocatalysts. Since we reviewed this area in 2008 [ 11] it is pleasing to see an increasing use of protein engineering to manipulate aldolases as new biocatalysts, both in their own right and as part of chemical cascade reactions leading to important products (see Table 1 for a summary of recent examples of engineering aldolases).

Cat II Antes de desconectar o endoscópio, o profissional de saúde

Cat II Antes de desconectar o endoscópio, o profissional de saúde deve limpar as superfícies externas do tubo de inserção com compressa macia e detergente enzimático, irrigar os canais de ar/água, e aspirar vigorosamente a solução de detergente. Cat. IB 1, 5, 6, 8, 9, 10 and 13 Nos endoscópios em que o canal de ar/água é combinado, deve-se posicionar e ativar a válvula de modo a permitir a irrigação do canal. Durante o transporte para a zona de descontaminação, os endoscópios devem ser contidos de modo a prevenir a exposição dos

profissionais de saúde, utentes e ambiente a microrganismos potencialmente infeciosos. Um contentor aberto pode ser suficiente se a sala de reprocessamento for imediatamente adjacente à sala de exames (não deve haver circulação por zonas de utilização Bioactive Compound Library comum). Caso haja

passagem por zonas comuns, o contentor deve ser fechado e estar identificado. Cat. II 10 O teste de fugas deve ser realizado de acordo com as instruções do fabricante e antes de cada ciclo de reprocessamento a fim de se verificar qualquer dano das superfícies internas e externas do endoscópio. Cat. IB 5, 6, 8, 9 and 10 Em caso de deteção de fugas, o reprocessamento BLZ945 chemical structure deve ser interrompido de imediato e ser providenciada a reparação do endoscópio. Neste caso, o profissional deve sinalizar que o endoscópio não se encontra desinfetado. O endoscópio deve ser completamente imerso em água com detergente de acordo com as instruções do fabricante. Cat. IB 1, 5, 6, 8, 9, 10 and 12 Todas as válvulas e outros componentes removíveis do endoscópio Glutamate dehydrogenase devem ser retirados (válvula de sucção, válvula de ar/água, válvula do canal de trabalho e outros acessórios). Cat. IB 1, 5, 6, 8, 9, 10 and 12 As superfícies externas do endoscópio, as entradas das válvulas e respetivas aberturas, devem ser inspecionadas e limpas utilizando uma compressa de tecido não tecido e um escovilhão macio, a parte distal do endoscópio deve ser limpa com uma escova macia nomeadamente as pontes/elevadores. Cat. IB 1, 5, 6, 8, 9, 10 and 12 Os escovilhões e escovas podem ser de uso único ou reutilizáveis.

Caso sejam reutilizáveis, devem ser reprocessados de acordo com as indicações do fabricante. Todos os canais e lúmenes devem ser preenchidos e irrigados com a solução de limpeza. Devem ser usados adaptadores de endoscópios específicos para garantir o preenchimento completo e a lavagem com detergente a fim de remover todo o material orgânico. Cat. IB 1, 5, 6, 8, 9, 10 and 12 Todos os canais acessíveis devem ser limpos com um escovilhão flexível com cerdas macias e intactas concebidas para esse fim, de tamanho adequado, de modo a garantir o contacto com as paredes do canal e até que o escovilhão se encontre visivelmente limpo no final do processo. Cat. II 1, 6, 8, 9 and 14 A água e o detergente enzimático devem ser eliminados após cada utilização. Cat IB 1, 6, 8 and 9 Deve ser realizado um controlo visual para comprovar que o endoscópio está limpo e não está danificado.