In order to describe the thalamic data more accurately we next cl

In order to describe the thalamic data more accurately we next classified neurons by location into those in Vim versus Vop. The Vim mean rates were significantly greater in postural Ion Channel Ligand Library concentration ET than in cerebellar tremor (P<0.01, shown in Fig. 2A), but not different from intention ET or from controls with pain (not shown). The mean Vim firing rate for intention ET was not significantly different from cerebellar tremor (not shown). The Vop mean rates of subjects with postural ET were higher than in cerebellar tremor (P=0.002, not shown). Therefore, firing rates in

postural ET were consistently higher than those in cerebellar tremor. The activity of all neurons included was studied for a response to joint movements during mapping of the thalamus, as described in the Methods. These cells were located in the region anterior ( Fig. 1C: P2) and dorsal to the region in which cells respond to cutaneous stimuli

( Fig. 1C: P1, and Lenz et al. (1988)). The proportions of cells responding to deep sensory stimuli and those not responding to such stimuli are shown by tremor type in Table 2. The proportion of neurons in Vim responding was greater for postural ET than cerebellar tremor (P=0.00012, Chi square with Bonferroni correction) and controls with pain (P=0.048). The number of sensory cells in Vop was different only between intention ET and cerebellar tremor (P=0.02, Fisher with Bonferroni). Since sensory inputs may be an important factor in the relationship of cerebellar tremor and cortical Talazoparib in vitro activity (Flament et al., 1984, Hore and Flament, 1986 and Vilis and Hore, 1977), we next examined the mean spontaneous rates for sensory cells across the four groups (Fig. 2B). There was a clear and significant change in the firing rate of sensory cells according to patient groups (1-way ANOVA, F=3.47, P<0.05). Post-hoc testing showed that the firing rate of sensory cells in the postural ET group was significantly higher than that of cerebellar tremor and controls with pain. The

rate for intention ET was not different from postural ET. We next examined how the thalamic signal qualitatively differed between groups of patients. The frequency at which peak spike activity Dichloromethane dehalogenase occurred was found for each neuron within the tremor range (1.9–7 Hz) (Lenz et al., 2002). The mean “frequency of peak spike power” occurred at a different frequency for each group of tremor patients (1-way ANOVA, F(3,259)=8.75, P<0.0005). The mean frequency of this peak is significantly higher in postural ET patients (4.8 Hz+0.25, mean+SEM) as compared to cerebellar tremor (3.4 Hz+0.2, post-hoc Newman–Keuls test, P=0.0057) and intention ET (3.7 Hz+0.4, P=0.032). The frequency was not significantly different between intention ET and cerebellar tremor (Newman–Keuls test P=0.34).

Supportive and psychological interventions should be an important

Supportive and psychological interventions should be an important part of the oncologist role. This more comprehensive activity is usually termed as “survivorship care”. Given the required large amount of resources and the possible important consequences in terms of patients’ health and survival, several prospective

studies were conducted with the aim of defining the best follow-up strategy in BC survivors [6], [7], [8], [9], [10] and [11] and clinical guidelines are constantly updated [12] and [13]. A survival benefit derived from the early detection of disease recurrence was rarely demonstrated in the general population, although several other needs of cancer patients were pointed out, leading to a wider

understanding www.selleckchem.com/products/Cyclopamine.html of surveillance and to a shift toward survivorship care. Unfortunately, while oncological research is actively buy Alectinib pushed in the field of pharmacological therapy, little has done to solve the many questions that still are open in survivorship care. Data on BC follow-up date back to the 1990, when results from two randomized trials were published: the GIVIO (Gruppo Interdisciplinare Valutazione Interventi in Oncologia, Interdisciplinary Group for Cancer Care Evaluation) trial [6] and the Rosselli del Turco trial [7]. They comparatively evaluated conventional follow-up based on regular physical examinations and annual mammography with more intensive investigations, such as chest X-rays, bone scan, liver ultrasound (US), and laboratory tests for tumor markers in order to search for distant metastases. Both trials Protein kinase N1 showed no overall survival (OS) benefit arising from intensive follow-up as compared with conventional follow-up [8] and [9]. In particular,

the first analysis of the Rosselli Del Turco trial showed an uncertain survival benefit arising from intensive follow-up compared with conventional follow-up, but the data was not confirmed after 10-year follow-up. The 10-year mortality cumulative rates were 31.5% for the conventional follow-up and 34.8% for the intensive ones (hazard ratio 1.05; 95% Confidence Interval (CI) 0.87–1.26) [8]. Similarly, the GIVIO at a median follow-up of 71 months, showed no differences in survival, with 132 deaths (20%) in the intensive group and 122 deaths (18%) in the control group (odds ratio = 1.12; 95% CI = 0.87–1.43). Moreover, the GIVIO trial assessed a decreased health-related Quality-of-life (QoL) in the intensive-screening group [6]. Recently, a Cochrane review involving more than 2500 women, confirmed that intensive follow-up did not improve OS and disease-free survival (DFS). These results were consistent among subgroup analyses according to patient age, tumor size and lymph node status before primary treatment [3]. Other important issues concern frequency and location of follow-up visits.

Qualitatively, ST co-injected with AAV-hSNCA and either AAV-mir30

Qualitatively, ST co-injected with AAV-hSNCA and either AAV-mir30-SNCA or AAV-NS silencing vector have the most evident reductions in TH-IR at 1 month (Fig. 6a). By 2 months, TH-IR in ST injected with AAV-hSNCA and AAV-mir30-hSNCA exhibits recovery compared Ivacaftor mouse to the 1 month time point (Fig. 6b). The density of TH-IR fibers at the level of the anterior commissure was measured using NIH Image J at both 1 and 2 months (Fig. 6c and d). TH-IR fiber density measurements are not significantly affected by hSNCA expression at either time point. However, TH-IR fiber density is reduced in ST of rats co-injected

with AAV-hSNCA and either AAV-mir30-SNCA or AAV-NS silencing vector compared to rats injected with AAV-hSNCA (1 month-p≤0.05; F2,12=5.731, p=0.0179, 2 month-hSNCA and NS: p≤0.001, hSNCA and mir30-SNCA: p≤0.05; F2,14=24.27, p<0.0001). Partial recovery from the initial reduction

in TH fibers (at 1 month) is observed by 2 months after injection in rats in which hSNCA was silenced with mir30-SNCA; ST injected with AAV-hSNCA and AAV-mir30-SNCA have increased fiber density measurements compared to ST injected with AAV-hSNCA and AAV-NS (p≤0.01), and TH fiber density measurements in ST injected with AAV-hSNCA and AAV-mir30-SNCA at 2 months are greater than those at 1 month (p≤0.05). However, 2-way ANOVA did not show a significant effect of time, but did show a trend Selleckchem DAPT regarding an interaction of time and treatment (F2,26=2.847, p=0.0762). These data suggest that although expression of silencing vector is toxic to TH-IR fibers, SNCA gene silencing promotes recovery from this initial toxic effect. To further examine effects of hSNCA expression and silencing on DA fibers in the ST, the left and right ST were dissected from rats injected with AAV-hSNCA, or AAV-hSNCA and either AAV-mir30-SNCA or AAV-NS silencing vector, and DA phenotypic markers were examined at the protein level (Fig. 7). Although all

injected ST trend toward reduced levels of TH Chlormezanone protein as detected by either the pan TH (Fig. 7b) or Ser40 phosphorylated TH (Fig. 7c) antibodies compared to control ST, these trends are only significant in ST injected with AAV-hSNCA and AAV-NS for pan TH (p≤0.05; F5,24=4.333, p=0.006) and in ST injected with AAV-hSNCA and either AAV-mir30-SNCA or AAV-NS silencing vector for P-Ser40 TH (p≤0.01; F5,24=8.893, p<0.0001). Similar to the observations in the ventral midbrain, protein levels of VMAT2 ( Fig. 7d) are not affected by treatment, suggesting that DA fibers in the ST are equivalent in all groups although TH expression is affected by expression of either mir30-SNCA or NS silencing vector. To examine the effect of hSNCA expression and silencing on inflammation, SN sections were stained for Iba-1-IR, which is up-regulated during microglia activation, at both 1 and 2 months (Fig. 8). Qualitatively, a small increase in Iba-1-IR compared to control SN was observed in SN injected with AAV-hSNCA alone.

2C and 2D) Significant differences were not observed in subgroup

2C and 2D). Significant differences were not observed in subgroups [V(+24h) and BP(+24h)] in two different sets of experiments conducted at different times. As observed in experiment 1, mice on the control diet for 7, 14 and 28 days [subgroups BP(+8d), BP(+15d), BP(+29d)] showed a time-related significant decrease in total adduct levels as seen by adduct intensity

in the liver and lungs of mice compared to BP(+24h) and subgroup of preceding time point. Interestingly, mice that were shifted to 0.05% curcumin diet and killed at 7, 14 and 28 days [subgroups BP(+8d) + C7d, BP(+15d) + C14d, BP(+29d) + C28d] showed a significantly higher decrease Linsitinib cost in total levels of adduct intensity in the liver and lungs compared to BP(+24h) and respective time-matched controls [subgroups BP(+8d), BP(+15d),

BP(+29d)] (Figure 2 and Figure 3). This decrease was also evident when comparison of the percentage intensity of nuclei containing high, Selleckchem Tofacitinib medium and low levels of adducts was made between curcumin-treated and time-matched controls. In the liver, the observed decrease in total adduct intensity appears to be attributed to reduction in percentage intensity of nuclei containing high and low levels of adducts. However, in lungs, it was mainly due to a decrease in intensity of nuclei containing high levels of adducts in mice shifted to 0.05% curcumin diet and killed at 7, 14 and 28 days [subgroups BP(+8d) + C7d, BP(+15d) + C14d, BP(+29d) + C28d] compared to BP(+24h) and respective time-matched controls [subgroups BP(+8d), BP(+15d), BP(+29d)] (Figs. 2C and 2D). These results suggest that dietary curcumin further enhanced the decrease in total adduct intensity in the liver and lungs of mice although the extent of decrease varied. The observed decrease in levels of BPDE-DNA adducts in liver and lungs may be attributed to increased loss

of adducts containing cells and/or enhanced DNA repair and/or dilution of adducted DNA by newly synthesized non-adducted DNA. To investigate the effect of dietary curcumin post-treatment on B(a)P-induced cell turnover in mouse liver and lungs, TUNEL assay was employed. Turnover Morin Hydrate of cells by apoptosis in the liver and lungs was measured in a similar area of tissue sections (mm2) and number of cells (∼800 cells/section/animal). Apoptotic index was measured in terms of total apoptotic nuclei intensity as well as the percentage of apoptotic positive and negative cells. Notably, 5-10% and 20-35% of total apoptotic nuclei were detected in the liver and lung tissues of vehicle [V(+24h), V(+48h), V(+96h), V(+144h)] or vehicle + curcumin [V(+48h) + C 24 h, V(+96h) + C 72 h, V(+144h) + C 120 h]-treated subgroups, respectively (Figs.

Mass transitions are depicted in Table 1 Further details are giv

Mass transitions are depicted in Table 1. Further details are given in Gries et al. (2012). Calibration was carried out by spiking 1 ml of water with concentrations ranging from 0.1 μg/l to 5000 μg/l of each deuterated standard. All calibration samples were analyzed as described in the sample section. Due to the high dynamic range of the HPLC–MS/MS a calibration range up to 5000 μg/l of each metabolite can be obtained GSI-IX supplier in case a quadratic curve fit is used (coefficient of correlation better than 0.99 for each analyte). The wide calibration range was desirable for the determination of some high metabolite concentrations expected in this dosing study. Samples with concentrations

above the calibration range were analyzed again after sample dilution with water. The calibration curves were obtained by plotting the quotient of the peak areas of the target deuterated analytes and the corresponding unlabeled internal standards against the standard concentrations. As quality control samples were not available, they had to be prepared in the laboratory with spiked APO866 mw urine samples to cover different concentration ranges (1 μg/l, 10 μg/l or 100 μg/l of each labeled metabolite).

One millilitre aliquots of these control samples were stored frozen at −18 °C. Two samples with either 10 or 100 μg/l concentration of each deuterated standard were analyzed during the analysis sequences for each volunteer on five different days to determine between day precision data. The within-day precision was obtained by analyzing pooled urine samples in three concentrations of each deuterated standard as described above. These samples were analyzed eight times in a row and all samples were quantified against the calculated

calibration curve. Moreover, the background of unlabeled DIDP/DPHP metabolites in the samples was tested in several experiments. As there was no significant interfering DIDP/DPHP background observed in the dosing samples (DIDP/DPHP metabolite levels Glutamate dehydrogenase were consistent below 2 μg/l), the samples were spiked with 200 μg/l of each unlabeled DPHP metabolite as internal standards. Quality control data (relative recovery, precision), depicted in Table 2, was acceptable and comparable to that of Gries et al. (2012). Detection limits were calculated according to the calibration curve method (DIN 32645) by use of the six lowest calibration points. LODs were 0.1 μg/l for cx-MPHxP-d4 and 0.2 μg/l for OH-MPHP-d4 and oxo-MPHP-d4. The corresponding LOQs were 0.3 μg/l, 0.5 μg/l and 0.5 μg/l for cx-MPHxP-d4, OH-MPHP-d4 and oxo-MPHP-d4, respectively. Statistical analysis was carried out using Microsoft Excel 2010. Exponential regression modeling was used to calculate exponential functions for decreasing metabolite levels after cmax. C(t) is the time dependent concentration, whereas C0 is the maximum concentration. K is the metabolite specific renal excretion constant.

, 2012) We have not been able to establish if the effect of anti

, 2012). We have not been able to establish if the effect of anti-LFA-1 during iTreg differentiation follows a direct or indirect impact of LFA-1 on Foxp3 induction but the result is in line with previous findings; the prevention of allogeneic transplant rejection by treatment with anti-LFA-1 has been shown to be associated with an increased frequency of CD4+Foxp3+ Treg cells in the graft-draining lymph nodes (Reisman et al., selleck 2011). Here, we demonstrate that our method induces antigen-specific iTreg cells of high purity that successfully protect against CNS autoimmune

disease. B10.PL, Tg4, Tg4 CD45.1+ and Tg4 Foxp3gfp (Verhagen et al., 2013a) mice were bred and kept under specific pathogen-free conditions. All experiments were carried out under a UK Home Office Project Licence and were subject to assessment by the University of Bristol ethical review committee. The acetylated Epigenetic inhibitor libraries N-terminal peptide of murine MBP, Ac1-9 (Ac-ASQKRPSQR) and its high MHC affinity variant (Ac-ASQYRPSQR) were custom synthesized (purity > 85%; GL Biochem (Shanghai) Ltd.) CD4+CD62L+ naive T cells were isolated magnetically from splenocytes using a naive T cell isolation kit (Stemcell Technologies) according to the manufacturer’s recommendations. CD4+CD62L+ naive

splenic T cells were cultured in vitro for 7 days in RPMI medium supplemented with 5% FCS, in the presence of 100 U/ml rhIL-2 (R&D systems) and 10 ng/ml rhTGF-β1 (Peprotech). Cells were stimulated

either with anti-CD3e (1 μg/ml) and anti-CD28 (2 μg/ml) plate-bound antibody (both from eBioscience) or MBP Ac1-9 peptide in the presence of irradiated B10.PL splenocytes used as antigen-presenting cells. Where indicated, functional grade antibody to LFA-1 (M17/4, Biolegend or eBioscience), CTLA-4 (9H10, eBioscience), PD-1 (J43, BioXCell), Y-27632 2HCl LAG3 (C9B7W, BioXCell) or IL-10R (1B1.3A, BioXCell) was added either plate-bound or soluble in the medium at 10 μg/ml for the duration of the culture. The level of FoxP3 induction was assessed by flow cytometry. Flow cytometric analysis was performed using an LSR II or Fortessa X20 flow cytometer (BD). Cell phenotypes were analyzed using combinations of anti-FoxP3-PE, − efluor450 or –APC, anti-CD45.2-PerCPCy5.5, anti-CD45.1 PE-Cy7, anti-CD62L-PE-Cy7, anti-Ki67-ef450, anti-CD4-AlexaFluor700 (all from eBioscience), anti-Neuropilin-1-PE or − APC, anti-LFA-1 (clone 2D7)-PE, anti-Helios-FITC, and anti-CD103-PerCPCy5.5 (all from Biolegend) antibodies. Fixable viability dye eFluor780 (eBioscience) was used in all experiments to exclude dead cells. Cell proliferation dye-ef450 (CPD-ef450, eBioscience) was used to visualize cell divisions or calculate division and proliferation indexes. Results were analyzed using FlowJo analysis software (Tree Star, Inc.). Demethylation analysis of the foxp3 CNS2 region was carried out by EpigenDX, assay ADS568.

The authors thank the reviewer of an earlier version of this pape

The authors thank the reviewer of an earlier version of this paper, Alberto Viglione, for the helpful suggestions and constructive comments. “
“Often referred to as the “Roof of the World” or the “Third Pole” or the “Water Tower of

Asia”, the Tibetan Plateau (TP) is the source region of major rivers in Southeast and East Asia that flow Forskolin research buy down to almost half of humanity. With an area of 2.5 × 106 km2, the TP is the largest and the highest plateau on Earth, and exerts great influence on regional and global climate through thermal and mechanical forcing (Manabe and Broccoli, 1990, Yanai et al., 1992, Liu et al., 2007, Nan et al., 2009 and Lin and Wu, 2011). The TP also has the largest cryosphere outside the Arctic and the Antarctic (Zhou buy Epacadostat and Guo, 1982, Zhou et al., 2000 and Cheng and Jin, 2013). Vast areas of snow, glaciers, permafrost and seasonally frozen ground distribute over the TP throughout the year. Different from the Arctic and the Antarctic,

climate change and the induced hydrological and cryospheric changes on the TP directly affect the lives of people and animals that depend on the rivers originating from the TP. It is important to examine the changes in hydrology in the context of climate change over the TP for understanding the links between the changes and for developing a sustainable water resource strategy for the region. Streamflow of major rivers is an important component of fresh water resource that is crucial for both human societies and natural ecosystems. Streamflow is the product of the integrated processes of atmosphere, hydrosphere, pedosphere and cryosphere in a basin, and is directly affected by climate

change and human activities (Wigley and Jones, 1985, Milly et al., 2005 and Barnett et al., 2005). Understanding the characteristics and long-term changes of streamflow on the TP is therefore essential for water resource management and ecosystems in the whole region. This work, with a focus on the hydrological Protein tyrosine phosphatase changes, will rely on the published literature and draw conclusions on the hydrological changes and the links to climate change. Based on a number of the published literatures, we synthesize the long-term streamflow records for the rivers that originate on the TP and summarize the major characteristics and changes of streamflow, and the relationship between precipitation/temperature and streamflow. We also strive to point out the outstanding issues and possible directions for future research in hydrology on the TP.

‘Permeability’ offers a way to conceptualise the impact of these

‘Permeability’ offers a way to conceptualise the impact of these barriers [17]. Highly permeable services require less work and fewer resources from patients who access them – for example, EDs in the UK which are open at all times. A service that seems accessible may in fact be impermeable to particular patient groups [19]. For example, despite general practices being locally available, with designated systems for urgent access, patients in our study described that they were, in fact, impermeable because of

factors such as receptionists’ gate-keeping, and travel cost or mobility problems. In our study, the combination of high permeability and technological expertise led Dabrafenib most patients to choose the hospital ED in times of perceived urgent need. In seeking to reduce EC use, healthcare policy SB203580 clinical trial defines patients as in need of education to use services effectively, or suggests the need for reorganisation of healthcare systems to reduce use of costly emergency care services, especially the ED [2], [7] and [23]. This ‘deficit’ model also dominates previous research investigating EC use, with research focusing on characteristics of

the patient [3], [24], [25] and [26] or the healthcare system [11], [27] and [28] that increase EC use. In contrast, this qualitative study demonstrates that patients understood the array of EC services available and were discriminating in their use of them, influenced primarily by previous experiences of services which recursively shaped their future healthcare choices. It contributes to a growing body of research which emphasises the social processes of help-seeking, and the expertise

patients bring to decision-making around healthcare use [19], [21], [29] and [30]. Our participant sample was large and heterogeneous with respect to age, gender, level of healthcare use (routine care Dapagliflozin and EC) and types of LTCs. We also probed in-depth about instances when they used EC and instances when they did not use EC, and prompted participants to reflect on their decision-making processes about what healthcare options to use and when to use them. This study has several limitations. First, it is possible that patients recounted previous use of EC in what they believed to be publicly defensible ways [31]. The use of serial qualitative interviews [32] examining patients’ healthcare use over time, might enable access to more private accounts, whereby patient’s decision-making can be discussed more openly with a familiar researcher. This approach would enable further insights into the establishment of patterns of healthcare use and how these patterns might be changed. Second, the study was limited to one geographical region, which may limit the transferability of the specific findings to other settings.

In the scope of the “German adaptation strategy” there was an inc

In the scope of the “German adaptation strategy” there was an increased request regarding regional climate change scenarios. Regional climate scenarios are available from a number of research groups (e.g., Déqué et al., 2005). Running such scenarios is no longer

a challenge, and is done routinely. For many stakeholders and for the public, adequate interpretation of scenarios is crucial. Selleckchem ABT-737 To develop tools, which meet these stakeholder needs, the North German Climate Office4 has been set up. The office has developed a number of information products: A fact sheet on the use of regional climate scenarios documents the most frequent misunderstandings by using scenarios (Meinke et al., 2011). Emphasis has been placed on the significance of ranges due to different emission scenarios and different models used. Consistent with this fact sheet an interactive climate web atlas has been developed where twelve atmospheric regional scenarios were analyzed for Northern Germany and sub-regions (Meinke and Gerstner, 2009). For different time horizons, ranges of possible buy Fluorouracil future climate

changes in Northern Germany are visualized by maps together with short interpretations. Another product, developed together with the German Weather Service, illuminates to what extent recent atmospheric changes in Northern Germany are consistent with the perspectives envisaged by the scenarios (Meinke et al., 2014). For coastal regions, obviously the possibly changing impact of rising storm water levels is of great concern. A future

change in the storm surge risk demands adaptation in terms of coastal defense, spatial planning and logistics. Two major factors in such scenarios are the rise in mean sea Cyclic nucleotide phosphodiesterase level and the change in storm related short term accumulation of coastal water. The first factor is a contested issue, because there is much uncertainty in the question, how much less, or more, water is stored on the big ice sheets Antarctica and Greenland (cf., Katsman et al., 2011). New satellite-born measurements of the ice sheets, as well as continued monitoring of the mean sea level will help to reduce the uncertainty in the coming years and decades, but for the time being, it may be best to simply accept a large uncertainty about the perspectives. An analysis determined that largest possible values of sea level rise at the end of the 21st century could be 1.2 m, or so. The second factor, related to storms, can be much better described, at least with respect to extra-tropical storms, which are well described in atmospheric climate change scenarios. The usual approach employed nowadays is to dynamically downscale atmospheric scenarios of possible climate change, and then feed the changing winds and air pressures into a hydrodynamic model of, for instance, the North Sea (e.g., Gaslikova et al., 2012 and Woth, 2005). Local features such as estuaries or barrier islands are not routinely resolved, and some statistical “location” methods may be used (Grossmann et al., 2007).

Photosynthetically active radiation (PAR) is most commonly taken

Photosynthetically active radiation (PAR) is most commonly taken as being between 400 and 700 nm, which corresponds approximately to visible light ( Kirk, 1977). At any depth, the underwater light field is highly variable and exactly how much light reaches any particular

habitat will depend on factors such as orientation of the sun, the weather, Ku-0059436 shading, reflection, and refraction ( Weinberg, 1976 and Falkowski et al., 1990). The amount of light an organism will be exposed to is also contingent upon its vertical angle and compass direction ( Weinberg, 1976, Falkowski et al., 1990 and Dunne and Brown, 2001). Light reduction is probably the most important of all sediment-related effects on corals. Light decreases exponentially with depth due to a process of attenuation (extinction), i.e. the absorption and scatter of light by selleck compound water molecules, particulate solids, and dissolved matter (Weinberg, 1976 and Falkowski et al., 1990). Maximal growth and development of reef corals usually occurs down to 30% to 40%

of subsurface irradiance (SI) and rarely is any significant reef formation found below 10% SI (Achituv and Dubinsky, 1990). Photosynthetic carbon fixation by zooxanthellae in Montastrea annularis (a species with one of the widest depth distributions) was found to decrease by more than 93% between 0.5 and 50 m depth ( Battey and Porter, 1988). Available light was found to be the primary factor responsible for monthly variations in growth of three hermatypic coral species in Curaçao ( Bak, 1974). Shading by large Acropora hyacinthus table corals (causing light levels to fall exponentially to ∼1% of outside values as a light meter was moved under the table) was found to significantly reduce “understorey” coral density, cover and diversity beneath the table corals compared with adjacent unshaded areas ( Stimson, 1985). Shading of a 20 m2 area of San Cristobal Reef off south-western

Puerto Rico for five weeks altered community Suplatast tosilate structure, decreased net reef productivity and caused bleaching and death of several hard coral species ( Rogers, 1979). As a response to lower light levels, most mesophotic reef corals often exhibit flat, plate-like morphologies to maximise light capture and may also utilise different symbionts (Bongaerts et al., 2010 and Bongaerts et al., 2011). Such plate-like morphology, however, more easily traps sediment, and although this increased susceptibility to sedimentation is normally not problematic due to the relatively lower rates of sedimentation on the deeper reef, increased sediment levels can result in large-scale mortality among mesophotic corals (Bak et al., 2005 and Bongaerts et al., 2010). Even in clear tropical waters, light intensity is reduced by 60% to 80% in the top 10 m of water (Kinzie, 1973) but attenuation increases in turbid waters (Kirk, 1977).