Approximately orthogonality preserving mappings on Hilbert C_{0}(Z)-modules

In this paper, we will use the categorical approach to Hilbert (C^{ast})-modules over a commutative (C^{ast})-algebra to investigate the approximately orthogonality preserving mappings on Hilbert (C^{ast})-modules over a commutative (C^{ast})-algebra. Indeed, we show that if (Psi:Gamma rightarrow Gamma^{prime} ) is a nonzero ( C_{0}(Z) )-linear (( delta , varepsilon))-orthogonality preserving mapping between the continuous fields of Hilbert spaces on a locally compact Hausdorff space (Z), then (Psi) is injective, continuous and also for every ( x, y in Gamma ) and (z in Z), [ vert langle Psi(x),Psi(y) rangle(z) - varphi^2(z) langle x,y rangle(z) vert leq frac{4(varepsilon - delta)}{(1-delta)(1+varepsilon)} Vert Psi(x) Vert Vert Psi(y) Vert, ] where (varphi(z) = sup { Vert Psi(u)(z) Vert : u ~ text{is a unit vector in} ~ Gamma })

Secondary Piggyback Intraocular Lens for Management of Residual Ametropia after Cataract Surgery

Purpose: To investigate the indications, clinical outcomes, and complications of secondary piggyback intraocular lens (IOL) implantation for correcting residual refractive error after cataract surgery. Methods: In this prospective interventional case series, patients who had residual refractive error after cataract surgery and were candidates for secondary piggyback IOL implantation between June 2015 and September 2018 were included. All eyes underwent secondary IOL implantation with the piggyback technique in the ciliary sulcus. The types of IOLs included Sulcoflex and three-piece foldable acrylic lenses. Patients were followed-up for at least one year. Results: Eleven patients were included. Seven patients had hyperopic ametropia, and four patients had residual myopia after cataract surgery. The preoperative mean of absolute residual refractive error was 7.20 ± 7.92, which reached 0.42 ± 1.26 postoperatively (P < 0.001). The postoperative spherical equivalent was within ±1 diopter of target refraction in all patients. The average preoperative uncorrected distance visual acuity was 1.13 ± 0.35 LogMAR, which significantly improved to 0.41 ± 0.24 LogMAR postoperatively (P = 0.008). There were no intraor postoperative complications during the 22.4 ± 9.5 months of follow-up. Conclusion: Secondary piggyback IOL implantation is an effective and safe technique for the correction of residual ametropia following cataract surgery. Three-piece IOLs can be safely placed as secondary piggyback IOLs in situations where specifically designed IOLs are not available

PrACTiC: A Predictive Algorithm for Chemoradiotherapy-Induced Cytopenia in Glioblastoma Patients

Background. Chemotherapy-induced cytopenia is the most frequent side effect of chemoradiotherapy in glioblastoma patients which may lead to reduced delivery of treatment. *is study aims to develop a predictive model that is able to forecast the cytopenia induced by temozolomide (TMZ) during concomitant chemoradiotherapy. Methods. Medical records of 128 patients with newly diagnosed glioblastoma were evaluated to extract the baseline complete blood test before and during the six weeks of chemoradiotherapy to create a dataset for the development of ML models. Using the constructed dataset, different ML algorithms were trained and tested. Results. Our proposed algorithm achieved accuracies of 85.6%, 88.7%, and 89.3% in predicting thrombocytopenia, lymphopenia, and neutropenia, respectively. Conclusions. *e algorithm designed and developed in this study, called PrACTiC, showed promising results in the accurate prediction of thrombocytopenia, neutropenia, and lymphopenia induced by TMZ in glioblastoma patients. PrACTiC can provide valuable insight for physicians and help them to make the necessary treatment modifications and prevent the toxicitie

The effect of pretreatment with hydroalcoholic extract of Alpinia officinarum rhizome on seizure severity and memory impairment in pentylenetetrazol-induced kindling model of seizure in rat

The aim of present study is to investigate pretreatment with hydroalcoholic extract of Alpinia officinarum rhizome on the severity of epilepsy and memory impairment in rat. In this experimental study, rats were randomly assigned to seven groups. Control group and negative control group were intraperitoneally injected with normal saline and PTZ, respectively, for 10 days. The intervention groups received A. officinarum extract at different doses (50, 100 and 150 mg/kg) 30 minutes before PTZ injection. A. officinarum extract treatment in rats with PTZ-induced kindling exerted significant increase in seizure latency and significant decrease in the frequency of total body seizure, frequent spinning, and jumping. Flumazenil significantly inhibited the antiepileptic effects of A. officinarum extract in the rat receiving the extract at 150 mg/kg. A. officinarum extract can inhibit PTZ-induced seizure and memory impairment, and therefore can be considered as a potent agent which warranted further research to clarify its effects. Keywords Author Keywords:Alpinia officinarum; seizure; pentylentetrazol; memory KeyWords Plus:OXIDATIVE STRESS; EPILEPS

EVALUATION OF HYPOGLYCEMIC AND HYPOLIPIDEMIC EFFECTS OF INTERNAL SEPTUM OF WALNUT FRUIT IN ALLOXAN-INDUCED DIABETIC RATS

Background: Todays, the popularity of herbal medicine is increasing worldwide. Due to importance the evaluation of medicinal herbs efficacy and safety, the present study was conducted to investigate the antidiabetic and hypolipidemic effects of internal septum of walnut fruit (ISWF) ethanolic extract in diabetic rats. Materials and methods: Alloxan diabetic rats treated orally with ethanolic extract of ISWF (0-400mg/kg) for 28 days. To evaluate its anti-diabetic activity, the animals fasting blood glucose were determined on the first, 14th and 29th days. Moreover, oral glucose tolerance test (OGTT) was performed in diabetic rats at the last day of the study. After 24h of last administration, the blood samples were collected, and the Plasma lipids and liver enzymes levels were measured in fasting overnight rats. Results: The extract significantly decreased blood glucose (

Identification of novel anti-cancer agents by the synthesis and cellular screening of a noscapine-based library

53 p.-7 fig.-1 tab.-1 schem.-1 graph. abst.Noscapine is a natural product first isolated from the opium poppy (Papaver somniferum L.) with anticancer properties. In this work, we report the synthesis and cellular screening of a noscapine-based library. A library of novel noscapine derivatives was synthesized with modifications in the isoquinoline and phthalide scaffolds. The so generated library, consisting of fifty-seven derivatives of the natural product noscapine, was tested against MDA-MB-231 breast cancer cells in a cellular proliferation assay (with a Z' > 0.7). The screening resulted in the identification of two novel noscapine derivatives as inhibitors of MDA cell growth with IC50 values of 5 µM and 1.5 µM, respectively. Both hit molecules have a five-fold and seventeen-fold higher potency, compared with that of lead compound noscapine (IC50 26 µM). The identified active derivatives retain the tubulin-binding ability of noscapine. Further testing of both hit molecules, alongside the natural product against additional cancer cell lines (HepG2, HeLa and PC3 cells) confirmed our initial findings. Both molecules have improved anti-proliferative properties when compared to the initial natural product, noscapine.We are also grateful to the Iran National Science Foundation (INSF, grant number 98026465) for financial support of this project and Shahid Beheshti University Research Council for providing facilities of to conduct this study. This work was supported by CSIC PIE 201920E111 (MAO).Peer reviewe

Synthesis of polymer propane sulfonate Contains ionic liquid based on imidazolium and study of its catalytic properties in the process of acylation of alcohols and esterification of acids

The main purpose of this study is the direct synthesis of regular mesoporous polymer with 3-(1-Vinyl imidazolium-3-yl) propane-1-sulfonate (MPIL-PS) ionic liquid units and its use as a catalytic substrate in the esterification of acids and the acylation of alcohols. in this research,Polyvinyl benzene polymer was synthesized with imidazolium units. In the next step, the regular mesoporous polymer (MPIL-PS) was activated with the Propane sultone group, and then the desired catalyst (H2SO4 @ MPIL-PS) was prepared by the interaction of ionic liquid units created on the surface of the polymer with sulfuric acid groups. The synthesized catalyst has the simultaneous advantages of ionic liquids and polymer nanostructured materials. By changing the reaction conditions and reducing the percentage of ionic liquids used in the presence of small amounts of catalyst, this catalyst was used in the reaction of esterification of acids and acylation of alcohols with high yields of products. The resulting catalyst after synthesis, The synthesized catalyst were characterized by various techniques such as nitrogen adsorption-desorption analysis, thermal gravimetric analysis (TGA) and FT-IR spectroscopy. Also, the catalyst recycling test showed that the catalytic system can be recycled up to 5 times with high efficiency without any significant reduction in activity

Effects of hydro.alcoholic extract of internal septum of walnut on diabetic nephropathy in rats

Background and Aim: Due to the rapid growth of global interest in use of herbal medicine, their efficacy and safety evaluation have become important. In recent studies, internal septum of walnut fruit suggested as a hypoglycemic agent. Therefore, the present work was conducted to evaluate the effects of ethanolic extract of internal septum of walnut fruit (ISWF) on some biochemical and pathological aspects related to renal function in diabetic rats. Materials and Methods: In this experimental research 32 acute Alloxan induced diabetic and 8 healthy rats divided into 5 equal group and treated orally once per day for 1 month as fallow diabetic groups I and II received 200 and 400 mg/kg of ISWF extracts, diabetic group III received 50 mg/kg metformin and diabetic group IV and healthy group received saline 0.9% as control groups. Finaly, fasting blood glucose (FBG), 24h urine total protein (UTP), blood nitrogen urea (BUN) and plasma cratinine (Cr) were assessed biochemically and also quantitative and qualitative renal histopathological altrations for 1200 glomerulus were determined patologically. Results: In compare to diabetic control group, the ethanolic extract of ISWF in dose independence manner significantly reduced (p≤0.05) FBG, UTP, BUN and Cr, as well as glomerular space, tuft-to-capsule adhesion and mesangial matrix expansion in diabetic rats. Conclusion: The ethanolic extracts of ISWF have beneficial effects on renal function in diabetic rat

Analgesic and anti-inflammatory potential of aerial parts of the Daphne mucronata Royle extract in mice: Opioid-independent action

Objective: To investigate the analgesic and anti-inflammatory property and possible involvement of opioid receptors of ethyl acetate extract from aerial parts of Daphne mucronata (D. mucronata) in mice by formalin test. Methods: Single doses of 2.5, 5.0 and 10.0 mg/kg of body weight of ethyl acetate extract of D. mucronata were intraperitoneally administered to the mice 30 min before analgesic test. The anti-nociceptive effect of preparations was evaluated based on the formalin in mice. Results: The results indicated that the extract (2.5, 5.0 and 10.0 mg/kg) increased the pain threshold of mice and induced analgesia in both phases of formalin test. Like morphine sulfate (5.0 mg/kg, i.p.), the extract also showed more effective analgesic effect on the late phase of formalin test. Pre-treatment of animals with naloxone (5.0 mg/kg i.p.) did not inhibit the effects of the extract. Conclusions: Our findings suggest that D. mucronata contains potential analgesic and anti-inflammatory compounds which support its traditional use. Moreover, it seems that the analgesic and anti-inflammatory effects of the extract is mediated by non-opioid mechanisms. Further pharmacological studies are required to determine whether the analgesic mechanisms are actually responsible for such properties

The relationship between nurses' performance during endotracheal suctioning with their emotional intelligence in Neonatal Intensive Care Units (NICU)

Abstract:Background and Aim:Individual skills and psychological characteristics of nurses may affect their efficiency and workingquality. In this study, the relationship between emotional intelligence and nurses’ performanceduring endotracheal suctioning in neonatal intensive care units was assessed.Materials and methods:This was a correlation-descriptive study which was conducted on 67 nurses working in neonatalintensive care units of Tehran Medical Sciences university hospitals in 2016. The datawas collected with a check-list and Bradberry-Greaves emotional intelligence questionnaire.Convenience sampling method was used and all nurses who had inclusion criteria were included.Suction performance checklist. The mean and SD scores of performance and emotional intelligencewere 17.12+2.32 and 80.22+13.04 respectively. Pearson correlation did not show significantrelationship between two variables (9=0.551, r=0.074). The Performance scores were related withwork experience of nurses (p<0.05). The emotional intelligence and work history were notcorrelated (p>0.05).Conclusion:The results of current study showed no significant relationship between performance and emotionalintelligence in a specific procedure of nurses. Since other studies showed positive relationshipbetween emotional intelligence and performance, we recommend more studies with differentquestionnaires and more samples in their studies.Keywords:Emotional intelligence; Performance at Work; Suctionin