73 to 29.08 with the maximum value recorded from n-hexane (21.6%). It was followed by butanol (20.3%), methanol (16.3%), acetone (12.08%), water (11.33%), petroleum ether (9.46%) and chloroform (9%). The plant possessed good antioxidant VS-4718 clinical trial property and at the dose of 100 mu g, DPPH value of flower was 412.82 +/- 0.003 that is near

to the satndard (440.54 +/- 0.001). The phenolic compounds were also detected in plant that was about half of the quantity of standard (gallic acid). This study will serve as benchmark for further detailed analysis of plant extract prior to drug development and its utilization in future. (c) 2013 Friends Science Publishers”
“The rotational spectra of trifluoroanisole (trifluoromethoxybenzene, C6H5OCF3) and of its C-13 and O-18 isotopologues in natural abundance

have been measured in a supersonic expansion with pulsed-jet Fourier transform microwave spectroscopy. The spectrum is consistent with a perpendicular conformation of the CF3 group with respect to the phenyl ring. (C) 2014 Elsevier Inc. All rights reserved.”
“Chloroplast precursor proteins encoded in the nucleus depend on their targeting sequences for delivery to chloroplasts. There exist different routes to the chloroplast outer envelope, but a common theme is the involvement of molecular chaperones. Hsp90 (heat-shock protein 90) delivers precursors via its receptor Toc64, which transfers precursors to the core translocase in the Elacridar cell line outer envelope. In the present paper, we identify an uncharacterized protein in Arabidopsis thaliana OEP61 which shares common features with Toc64, and potentially AR-13324 clinical trial provides

an alternative route to the chloroplasts. Sequence analysis indicates that OEP61 possesses a clamp-type TPR (tetratricopeptide repeat) domain capable of binding molecular chaperones, and a C-terminal TMD (transmembrane domain). Phylogenetic comparisons show sequence similarities between the TPR domain of OEP61 and those of the Toc64 family. Expression of mRNA and protein was detected in all plant tissues, and localization at the chloroplast outer envelope was demonstrated by a combination of microscopy and in vitro import assays. Binding assays show that OEP61 interacts specifically with Hsp70 (heat-shock protein 70) via its TPR clamp domain. Furthermore, OEP61 selectively recognizes chloroplast precursors via their targeting sequences, and a soluble form of OEP61 inhibits chloroplast targeting. We therefore propose that OEP61 is a novel chaperone receptor at the chloroplast outer envelope, mediating Hsp70-dependent protein targeting to chloroplasts.”
“Dexamethasone (DX) induces apoptosis resistance in most solid malignant tumors during co-treatment with chemotherapy agents, such as camptothecin (CAM). In this study, we investigated the mechanism by which DX reduces chemotherapy efficiency in C6-glioma. DX reduced CAM-increased DNA fragmentation and caspase-3 activation.

These experiments typically examined effects of elevated atmospheric CO(2), warming or drought (driver variables) on ecosystem processes such as the carbon and water cycle (response variables). Because experiments are inevitably constrained in the number of driver variables tested simultaneously, as well as in time and space, a key question is how results are scaled up to predict net ecosystem responses. In this review, we argue that there might be a general trend for the magnitude of the responses to decline with higher-order interactions, longer

time periods and larger spatial scales. This means that on average, both positive and negative global change impacts on the biosphere might be dampened more than previously assumed.”
“The cell wall of budding yeast is a rigid

structure composed of multiple components. To thoroughly understand SC75741 its JPH203 chemical structure involvement in morphogenesis, we used the image analysis software CalMorph to quantitatively analyze cell morphology after treatment with drugs that inhibit different processes during cell wall synthesis. Cells treated with cell wall-affecting drugs exhibited broader necks and increased morphological variation. Tunicamycin, which inhibits the initial step of N-glycosylation of cell wall mannoproteins, induced morphologies similar to those of strains defective in alpha-mannosylation. The chitin synthase inhibitor nikkomycin Z induced morphological changes similar to those of mutants defective in chitin transglycosylase, possibly due to the critical role of chitin in anchoring the beta-glucan network. To define the mode of action of echinocandin B, a 1,3-beta-glucan synthase inhibitor, we compared the morphology it induced with mutants of Fks1 that contains the catalytic domain for 1,3-beta-glucan synthesis. Echinocandin B exerted morphological effects similar to those observed in some fks1 mutants,

with defects in cell polarity and reduced glucan synthesis activity, suggesting that echinocandin B affects not only 1,3-beta-glucan selleck kinase inhibitor synthesis, but also another functional domain. Thus our multivariate analyses reveal discrete functions of cell wall components and increase our understanding of the pharmacology of antifungal drugs.”
“Restricting time for grazing and concentrate supplementation affects feeding motivation, altering grazing behaviour, and performance of grazing ruminants. This study evaluated the combination of three lengths of restricting time at pasture and two levels of concentrate supplementation on behaviour, intake, and productive performance of dairy cows. Times out of pasture were 0, 4 (0800-1200 h) and 8.5 (0800-1630 h) hours. Levels of concentrate supplementation were 3 and 6 kg DM/cow/day. Measurements were: herbage dry matter intake and digestibility, grazing, ruminating and idling time, bite rate, milk yield and composition, as well as changes in live weight and body condition score.

0039), with non-significant increases in both pulsatile and non-pulsatile insulin secretion. Insulin pulse frequency was unchanged by the intervention. There was an inverse relationship between fasting and postprandial glycaemia and insulin pulse mass (r2?=?0.51 and 0.56, respectively), whereas non-pulsatile insulin secretion was unrelated to either

fasting or postprandial glucose selleck chemicals llc concentrations (r2?=?0.0073 and 0.031). Conclusions Hyperglycaemia in type 2 diabetes is associated with a reduction in postprandial insulin secretion, specifically through a reduction in insulin pulsatility. Reducing chronic hyperglycaemia by basal insulin therapy enhances endogenous beta-cell function in the postprandial state. These data support the use of basal insulin regimens in the pharmacotherapy of overtly hyperglycaemic patients with type 2 diabetes.”
“There is an accumulating body of evidence linking the secreted enzyme autotaxin (ATX) and its product lysophosphatidate (LPA) to tumor progression, metastasis ABT-263 inhibitor and resistance to chemotherapy or radiotherapy. ATX achieves this mainly by converting the abundant lysophosphatidylcholine in the circulation to the potent bioactive signaling molecule, LPA. ATX is also bound to integrins on cell surfaces, which enables it to deliver LPA locally

to at least eight G-protein-coupled receptors. These receptors activate a variety of signaling cascades, which stimulate cell division, survival and migration. Cancer cells also often show decreased expression of LPP-1 and -3, which both dephosphorylate extracellular LPA and also block its signaling downstream of receptor activation. This contributes to the hypersensitivity of cancer cells to the effects of LPA signaling, which coupled with increased ATX expression, promotes their metastasis and survival.”
“Objective: People with brain tumour experience complex and distressing symptoms. Neuropsychological impairment is proposed to have a negative impact on subjective well-being; however,

Selleck HM781-36B research is yet to examine the influence of estimated premorbid IQ on this relationship. This preliminary study investigated the moderating effect of estimated premorbid IQ on the relationship between global neuropsychological status (GNF) and depression and quality of life.\n\nMethods: 73 adults (51% male) aged 21-65 years with primary brain tumour (52% benign) were administered a test battery assessing estimated premorbid IQ, GNF, depression (Depression Anxiety Stress Scales) and quality of life (Functional Assessment of Cancer Therapy, FACT).\n\nResults: A series of two-way analysis of covariance (ANCOVA) controlling for education found a significant interaction between estimated premorbid IQ (low average to average vs high average) and GNF (low vs high) on levels of depression (p < .05) and FACT emotional well-being (p <.05).

\n\nResults: We found that Cas-/- mouse embryonic fibroblasts (MEFs), as well as empty vector-transfected Cas-/- MEFs (Cas-/- (EV)) are significantly resistant to cell death induced by proteasome inhibitors, such as MG132 and Bortezomib. As expected, wild-type MEFs (WT) and Cas-/- MEFs reconstituted with full-length Cas (Cas-FL) were sensitive to MG132- and Bortezomib-induced apoptosis that involved activation of a caspase-cascade, including Caspase-8. Cas-CT generation was not required for MG132-induced cell death, since expression of cleavage-resistant Cas mutants effectively increased sensitivity of Cas-/- MEFs to MG132. At the present time, the domains in Cas and the downstream pathways that

are required selleck kinase inhibitor for mediating cell death induced by proteasome inhibitors remain unknown. Interestingly, however, MG132 or Bortezomib treatment resulted in activation of autophagy in cells that lacked Cas, but not in cells that expressed Cas. Furthermore, autophagy was found to play a protective role in Cas-deficient cells, as inhibition of autophagy either by chemical or genetic means enhanced MG132-induced apoptosis

in Cas-/-(EV) cells, but not in Cas-FL cells. Lack of Cas also contributed to resistance to the DNA-damaging agent Doxorubicin, which coincided with Doxorubicin-induced autophagy in Cas-/-(EV) cells. Thus, Cas may have a regulatory role in cell death signaling in response to multiple different stimuli. The mechanisms by which Cas inhibits induction of autophagy and affects cell death pathways are currently being investigated.\n\nConclusion:

Our study demonstrates that Cas is HIF inhibitor required for apoptosis that is induced by proteasome inhibition, and potentially by other death stimuli. We additionally show that Cas may promote such apoptosis, at least partially, by inhibiting autophagy. This is the first demonstration of Cas being involved in the regulation of autophagy, adding to the previous findings by others linking focal adhesion components to the process of autophagy.”
“Regions of several dozen to several hundred base pairs of find more extreme conservation have been found in non-coding regions in all metazoan genomes. The distribution of these elements within and across genomes has suggested that many have roles as transcriptional regulatory elements in multi-cellular organization, differentiation and development. Currently, there is no known mechanism or function that would account for this level of conservation at the observed evolutionary distances. Previous studies have found that, while these regions are under strong purifying selection, and not mutational coldspots, deletion of entire regions in mice does not necessarily lead to identifiable changes in phenotype during development. These opposing findings lead to several questions regarding their functional importance and why they are under strong selection in the first place.

\n\nRESULTS: There were 12 males and 16 females patients, with a median age of 53 years (20-76 years). Their major complaints check details were “gastrointestinal bleeding” (57.2%) and “nonspecific discomfort” (32.1%). About 14.3%, 60.7%, 17.9%, and 7.1% of the tumors originated in the first to fourth portion, respectively, with a median size of 5.8 cm (1.6-20 cm). Treatment was by WR in 5 cases (17.9%), SR in 13 cases (46.4%), and by PD in 10 cases (35.7%). The morbidity and mortality rates were 35.7% and 3.6%, respectively. The median post-operative stay was 14.5 d (5-47 d). During

a follow-up of 61 (23-164) mo, the 2-year and 5-year relapse-free survival was 83.3% and 50%, respectively. Eighty-four related articles were reviewed.\n\nCONCLUSION:

Surgeons can choose to perform limited resection or PD for operable DGISTs if clear surgical margins are achieved. Comprehensive treatment is necessary. (C) 2013 Baishideng. All rights reserved.”
“The ability of skeletal stem cells (SSCs) to direct spinal fusion (SF) upon transplantation in conjunction with osteoconductive biomaterials was investigated in a rabbit model. When tested in a mouse heterotopic transplantation assay, rabbit SSCs and Pro-Osteon 500R (TM) was osteoconductive and supported osteogenesis. When used in a SF model, the same constructs induced bone formation in periapophyseal regions (PARs). In this respect, they proved to be superior to grafts of cell-free carrier or total uncultured bone marrow carrier constructs, used as controls. However, interapophyseal regions (IARs) remained devoid of new bone, such that true bony bridging of adjacent transverse apophyses (true selleck chemicals llc SF) could not be achieved. Interestingly, this could not be predicted from high-resolution radiography. A systematic histological WZB117 in vitro survey of the entire graft harvested at 6 months was essential for proper assessment of the transplantation procedure outcome. Immunohistochemical analysis of microvessel density revealed that IARs remained

undervascularized, as compared to PARs, suggesting that differential vascularization could account for the absence or presence of new bone formation in the same regions. SF is an extreme model of stem cell-directed bone regeneration, requiring a combination of orthotopic (PAR) and heterotopic (IAR) bone formation. Our data show that, in this setting, graft size can be critical with respect to the necessary neovascularization, a crucial variable independent of proper osteogenic and osteoconductive competence of the cells and materials employed. Furthermore, stringent histological studies are mandatory for proper assessment of outcomes in SF studies, in which the use of mineralized materials can make radiographic assessment misleading. Copyright (C) 2009 John Wiley & Sons, Ltd.”
“The role of Chlamydia pneumonia (CP) infection in infantile asthma remains obscure. CP infection was serologically determined (Immunoglobulin M antibody titer of index (ID) >= 2.

In this cross-sectional study, dual energy X-ray absorptiometry was used to quantify total body fat (TBF) and percent body fat (PBF). Prepubertal status was assessed by the criteria of Tanner. Multiple regression models were developed with TBF and PBF as the dependent variables and BMI, age, sex, and ethnicity as independent variables. Multiple regression analysis showed that BMI alone explained 85% and 69% of between-subject

variance for TBF and PBF, respectively. Sex was a significant contributor to the models (P < 0.001) with girls having higher TBF and PBF than boys. Ethnicity and geographic location were significant contributors to the model (P < 0.0001) with Asians (Jinan and NYC Asians) having higher PBF than all non-Asian groups (P < 0.0001), and Jinan Asians having higher GM6001 mouse TBF and PBF than NYC-Asians. Among prepubertal children, for the same BMI, Asians have significantly higher PBF compared with African Americans and Caucasians. Caution is warranted when applying BMI across sex and ethnic prepubertal groups.”
“Interferon-alpha (IFN-alpha) is the only drug approved for adjuvant therapy of malignant melanoma and is also used in the treatment of hematological and solid

tumors. Along with Selleck EVP4593 its proven clinical efficacy, IFN-alpha produces several side effects, particularly with regard to autoimmune disorders. Curious about symptoms of autoimmunity during IFN-alpha therapy, we asked whether IFN-alpha directly impacts on immune tolerance. We found that IFN-alpha does alter the function of tolerogenic dendritic cells (DC) as well as of induced and naturally occurring T-regulatory cells (nTregs). IFN-alpha blocks the tolerogenic phenotype of DC by inducing maturation and thus preventing the induction Apoptosis Compound Library of inducible Tregs by DC. It also has direct effects on nTregs. IFN-alpha reduces cAMP in Tregs via ERK/phosphodiesterase-mediated pathways. Since cAMP is essentially involved in suppression

by nTregs, the IFN-alpha-dependent reduction of cAMP levels abolishes the suppressive capacity of nTregs. Therefore, Tregs are incapable of suppressing the activity of effector T cells and natural killer cells, resulting in tumor rejection. Thus, IFN-alpha overcomes immunological tolerance processes, leading to an improved immunostimulation and efficient tumor rejection, but also increases the risk of autoimmunity.”
“Lowe syndrome is a rare genetic: disease that appears to cause various clinical symptoms involving the eye, nervous system, and kidney. While a mutation of the OCRL1 gene is known to be responsible for this syndrome, the exact pathophysiology remains unclear. Various multi-organ symptoms are characteristic of Lowe syndrome, but skin lesions have rarely been described. Recently, mechanisms for the association of Lowe syndrome and skin lesions have been proposed. We report this case of Lowe syndrome involving multiple epidermal cysts on the scalp in a 6-year-old male child.

This is the first study to look at the characteristics of planktonic and benthic Robsonella fontaniana juveniles in an effort to analyze the morphometric changes occurring during their planktonic and benthic phases and to explore the feasibility of obtaining settlement under controlled conditions. The morphometric measurements varied exponentially over time and did not show different tendencies before and after settlement. Mantle growth in relation to total length

fit a logarithmic regression, whereas arm length and eye diameter increased linearly with respect to total length throughout the entire paralarval and juvenile periods. This suggests that the size of the mantle decreases with age in proportion to the total octopus length, whereas the organs more directly involved in catching prey tend to increase in direct proportion to the total length. The present study shows that R. fontaniana DZNeP molecular weight can be reared from hatching through the final paralarval stage on a diet of Lithodes santolla (king crab) zoeae; after settlement, the juveniles can be reared on a diet of crab such as Petrolisthes.”
“BACKGROUND AND PURPOSE\n\nDocking studies predict that the insecticides, lindane and fipronil,

block PD98059 molecular weight GABAA receptors by binding to 6′ pore-lining residues. However, this has never been tested at any Cys-loop receptor. The neurotoxic effects of these insecticides are also thought to be mediated by GABA(A) receptors, although a recent morphological study suggested glycine receptors mediated fipronil toxicity in zebrafish. Here we investigated

whether human alpha 1, alpha 1 beta, alpha 2 and alpha 3 glycine receptors were sufficiently sensitive to block by either compound as to represent possible neurotoxicity targets. We also investigated the mechanisms by which Cell Cycle inhibitor lindane and fipronil inhibit alpha 1 glycine receptors.\n\nEXPERIMENTAL APPROACH\n\nGlycine receptors were recombinantly expressed in HEK293 cells and insecticide effects were studied using patch-clamp electrophysiology. KEY RESULTS Both compounds completely inhibited all tested glycine receptor subtypes with IC50 values ranging from 0.2-2 mu M, similar to their potencies at vertebrate GABA(A) receptors. Consistent with molecular docking predictions, both lindane and fipronil interacted with 6′ threonine residues via hydrophobic interactions and hydrogen bonds. In contrast with predictions, we found no evidence for lindane interacting at the 2′ level. We present evidence for fipronil binding in a non- blocking mode in the anaesthetic binding pocket, and for lindane as an excellent pharmacological tool for identifying the presence of beta subunits in ab heteromeric glycine receptors.\n\nCONCLUSIONS AND IMPLICATIONS\n\nThis study implicates glycine receptors as novel vertebrate toxicity targets for fipronil and lindane. Furthermore, lindane interacted with pore-lining 6′ threonine residues, whereas fipronil may have both pore and non-pore binding sites.”
“Drosophila melanogaster and D.

AFM experiments show isolated uniform molecules that adopt an ovoidal conformation whose dimensions are found in good agreement with DLS data. The self-organization of the PS, PI comb copolymers was further studied in the solid state as thin films, using SAXS. The results show that PCEVE-g-(PS,PI) combs yield lamellar biphasic morphologies that were compared to those observed for PCEVE-g-(PS-b-PI) combs with PS-b-PI diblock branches and those known for linear

PS-b-PI of similar weight compositions.”
“Background: In recent years, the growing demand EPZ015666 price for biofuels has encouraged the search for different sources of underutilized lignocellulosic feedstocks that are available in sufficient abundance to be used for sustainable

biofuel production. Much attention has been focused on biomass from grass. However, large amounts of timber residues such as eucalyptus bark are available and represent a potential source for conversion to bioethanol. Selleck A-769662 In the present paper, we investigate the effects of a delignification process with increasing sodium hydroxide concentrations, preceded or not by diluted acid, on the bark of two eucalyptus clones: Eucalyptus grandis (EG) and the hybrid, E. grandis x urophylla (HGU). The enzymatic digestibility and total cellulose conversion were measured, along with the effect on the composition of the solid and the liquor fractions. Barks were also assessed using Fourier-transform MLN2238 nmr infrared spectroscopy (FTIR), solid-state nuclear magnetic resonance (NMR), X-Ray diffraction, and scanning electron microscopy (SEM).\n\nResults: Compositional analysis revealed an increase in the cellulose content,

reaching around 81% and 76% of glucose for HGU and EG, respectively, using a two-step treatment with HCl 1%, followed by 4% NaOH. Lignin removal was 84% (HGU) and 79% (EG), while the hemicellulose removal was 95% and 97% for HGU and EG, respectively. However, when we applied a one-step treatment, with 4% NaOH, higher hydrolysis efficiencies were found after 48 h for both clones, reaching almost 100% for HGU and 80% for EG, in spite of the lower lignin and hemicellulose removal. Total cellulose conversion increased from 5% and 7% to around 65% for HGU and 59% for EG. NMR and FTIR provided important insight into the lignin and hemicellulose removal and SEM studies shed light on the cell-wall unstructuring after pretreatment and lignin migration and precipitation on the fibers surface, which explain the different hydrolysis rates found for the clones.\n\nConclusion: Our results show that the single step alkaline pretreatment improves the enzymatic digestibility of Eucalyptus bark. Furthermore, the chemical and physical methods combined in this study provide a better comprehension of the pretreatment effects on cell-wall and the factors that influence enzymatic digestibility of this forest residue.

(C) 2010 Elsevier B.V. All rights reserved.”
“The aim of this study was to investigate the activation of JNK1/2 signalling pathway and the respective cellular phenotype of H9c2 cardiac myoblasts during two distinct types of oxidative insult. We examined the dose- and time-dependent activation of JNK1/2 pathway by exogenous H2O2, both under transient and sustained stimulation. At 2 h of either sustained or transient treatment, selleckchem maximal phosphorylation of c-Jun was observed, coincidently with the activation of nuclear JNK1/2; under sustained stress, these phosphorylation levels remained elevated above basal

for up to 6 h, whereas under transient stress they declined to basal ones within 4 h of withdrawal. Furthermore, the JNK1/2 selective inhibitor SP600125 abolished the c-jun phosphorylation induced by oxidative stress. Our results using cell viability assays and light microscopy revealed that sustained H2O2 stimulation significantly and time-dependently decreased H9c2 viability, in contrast to

transient stimulation; SP600125 (10 mu M) abolished cell death induced by sustained as well as cell survival induced by transient oxidative stress. Hoechst staining showed an increase in DNA condensation during sustained, but not during transient stimulation. Moreover, from the antioxidants tested, catalase and superoxide dismutase prevented oxidative stress-induced cell death. Flow cytometry studies reconfirmed that sustained oxidative stress induced apoptosis, whereas learn more transient resulted in the recovery of cardiac myoblasts within 24 h. We conclude

that in H9c2 myoblasts, sustained activation of JNK1/2 signalling pathway during oxidative stimulation is followed by an apoptotic phenotype, while transient JNK1/2 activation correlates well with cell survival, suggesting a dual role of this signalling pathway in cell fate determination.”
“Left Atrial Stiffness and Atrial Fibrillation. Introduction: An increased left atrial (LA) stiffness reflects the structural remodeling and deterioration of the LA function. This study was designed to estimate LA stiffness by measuring a combination of the strain and LA pressure in patients undergoing pulmonary vein isolation XMU-MP-1 order (PVI) of atrial fibrillation (AF) and to evaluate the influence of the LA stiffness on the cardiac function, serum markers, and recurrence of AF after PVI.\n\nMethods: In 155 consecutive patients with AF, the brain natriuretic peptide (BNP) and aminoterminal procollagen type III propeptide (PIIIP) plasma levels were measured before the PVI. The difference between the minimum and maximum LA systolic pressures was directly measured by a transseptal puncture. The ratio of the difference in the LA pressures to the peak systolic LA strain evaluated by speckle-tracking echocardiography was used as an index of the LA stiffness.

Time of noninvasive ventilation and LOS were lower in the mask than in the helmet group. Conclusions: In patients with acute exacerbation of COPD and undergoing NPPV, the sequential use of a mask and helmet diminished the incidence of failure. Under the present experimental conditions, the use of a helmet increased LOS and the duration of artificial ventilation. Copyright

(C) 2011 S. Karger AG, Basel”
“Objectives: To elucidate the predisposing factors and clinical characteristics related to the occurrence of stitch abscess after surgery in patients with oral squamous cell carcinoma (SCC).\n\nPatients and Methods: The subjects were 232 patients who underwent excision and/or reconstruction and/or neck dissection for oral SCC using silk sutures for high ligation of the blood vessels. Detection rates and characteristics of patients LY2835219 price with stitch abscess were retrospectively evaluated by comparing patients with and without stitch abscesses after surgery diagnosed by ultrasonography

and findings of various modalities SNX-5422 Cytoskeletal Signaling inhibitor in 232 patients. Several echogenic dots with subtle acoustic shadows in a hypoechoic mass were identified as the characteristic findings of stitch abscess on US. The patient groups with and without stitch abscess were compared with respect to various factors to identify those that predispose to the occurrence of stitch abscess. The factors analyzed included patients’ sex and age, chemotherapy treatment, radiotherapy treatment, the presence of a history of allergy, and blood test results.\n\nResults: A significant correlation was found between the occurrence of stitch abscess and age, liver function abnormalities on blood tests, and the presence of a history of allergy. Multiple stitch abscesses clearly tended to PD98059 manufacturer occur more often than single ones in patients with stitch abscess.\n\nConclusions: The occurrence

of stitch abscesses was related to age, liver dysfunction, and/or the presence of allergies. When diagnosing stitch abscess, the occurrence of multiple stitch abscesses is important.”
“Most published cases of rectus muscle flap tear have been associated with orbital trauma of various degrees of severity. When they accompany an orbital fracture, however, it is difficult to determine whether the flap tear is merely an incidental additional finding or a major contributing cause of the resulting restriction. How to treat the flap itself remains an open question. We report a 24-year-old man with an inferior rectus muscle flap tear caused by direct laceration of the muscle. The major finding was a “reverse leash” vertical restriction. Discarding the flap instead of reattaching it did not prevent a successful result. Our case supports the proposition that rectus muscle flap tear can be a restriction-producing entity.