Search Results
Results 301 - 350 of 994
< 2 3 4 5 6 7 8 9 10 11 12 >
Ramapanicker Ramesh - - 2011
Propargyl esters are employed as effective protecting groups for the carboxyl group during solution-phase peptide synthesis. The propargyl ester groups can be introduced onto free amino acids by treating them with propargyl alcohol saturated with HCl. The reaction between propargyl groups and tetrathiomolybdate is exploited to deblock the propargyl esters. ...
Nakano Shu-Ichi - - 2011
Unnatural nucleosides have been explored to expand the properties and the applications of oligonucleotides. This paper briefly summarizes nucleic acid analogs in which the base is modified or replaced by an unnatural stacking group for the study of nucleic acid interactions. We also describe the nucleoside analogs of a base ...
Doessing Holger - - 2011
Nucleic acids are able to adopt a plethora of structures, many of which are of interest in therapeutics, bio- or nanotechnology. However, structural and biochemical stability is a major concern which has been addressed by incorporating a range of modifications and nucleoside derivatives. This review summarizes the use of locked ...
Corpeleijn W E - - 2011
Amino acids and proteins play a pivotal role during growth and development. Besides acting as building blocks during tissue synthesis, amino acids or proteins act specifically by upregulating defense systems or by stimulating key sites in metabolic pathways. Following premature birth, the neonatologist is responsible for delivering the right amount ...
Heidel Jeremy D - - 2011
Numerous nonviral systems have been developed for the delivery of nucleic acids to cultured cells and to particular cell types in vivo. These systems vary with regard to their toxicity, immunogenicity, and ability to target particular cell surface receptors and/or cell types. A class of linear cationic polymers containing the ...
Chaturvedula Venkata Sai Prakash - - 2011
Synthesis of two ent-kaurane diterpene glycosides, steviol 19-O-β-D-glucopyranosiduronic acid (steviol glucuronide, 5), and 13-hydroxy ent-kaur-16-en-19-oic acid-β-D-glucopyranosyl ester (7) has been achieved from a common starting material, steviol, using phase transfer catalyst. Also, synthesis of an additional 17-nor-ent-kaurane glycoside, namely 13-methyl-16-oxo-17-nor-ent-kauran-19-oic acid-β-D-glucopyranosyl ester (10) was performed using the starting material isosteviol ...
Hollenstein Marcel - - 2011
Modified nucleoside triphosphates (dNTPs) are a versatile platform for the generation of high-density functionalized nucleic acids. The enzymatic polymerization of dNTPs allows the introduction of sensible functionalities that might not be compatible with the standard automated synthesis of oligonucleotides. Their application to in vitro selections, an elegant chemical approach to ...
Zhu Jieping - - 2011
A conceptually novel macrolactonization technology is described. A strategically positioned 5-aminooxazole served as an internal traceless activator of the neighboring C-terminal carboxylic acid allowing the occurrence of macrolactonization under mild acidic conditions. It is a domino process involving a sequence of: a) protonation of 5-aminooxazole leading to an electrophilic iminium ...
Nakatsuka Matthew A - - 2011
This paper reports the one-pot synthesis of perfluorocarbon microbubbles with crosslinked shells of poly(acrylic acid) and phospholipid that boast excellent ultrasound contrast enhancement, enhanced loading capacity, and the ability to retain or release their contents through variation in the level of ultrasound exposure.
Tamura Koji - - 2011
The chiral-selective aminoacylation of an RNA minihelix is a potential progenitor to modern tRNA-based protein synthesis using l-amino acids. This article describes the molecular basis for this chiral selection. The extended double helical form of an RNA minihelix with a CCA triplet (acceptor of an amino acid), an aminoacyl phosphate ...
Uluisik Irem - - 2011
Boron is an essential micronutrient for plants, and it is beneficial for animals. However, at high concentrations boron is toxic to cells although the mechanism of this toxicity is not known. Atr1 has recently been identified as a boron efflux pump whose expression is upregulated in response to boron treatment. ...
Johnson Douglas A - - 2010
To study changes in bone mineral density (BMD) and a bone resorption marker in elderly men who received off-label zoledronic acid for osteoporosis treatment. We conducted a retrospective review of medical records of 50 male veterans who had received at least one 4-mg intravenous infusion of zoledronic acid and had ...
Fredly Hanne - - 2010
Disease-stabilizing therapy with the histone deacetylase inhibitor valproic acid and all-trans retinoic acid (ATRA) has been investigated in acute myelogenous leukemia (AML) in a number of trials. Experimental studies suggest that valproic acid induces a broad chemoresistant phenotype in human AML cells; however, clinical observations combining valproic acid with conventional ...
Anderson Gail D - - 2010
Insomnia is a commonly reported clinical problem with as many as 50% of older adults reporting difficulty in falling and/or remaining asleep. Valerian (Valeriana officinalis) is a commonly used herb that has been advocated for promoting sleep. Valerenic acid is used as a marker for quantitative analysis of valerian products ...
Verrotti A - - 2011
In the last years, a growing body of literature indicates an association between valproic acid therapy and weight gain. Weight gain during valproate treatment can be observed within the first 3 months of therapy and women seem to be more susceptible than men. The mechanism through which valproic acid may ...
Ono Tetsuo - - 2010
Since the first mouse clone was produced by somatic cell nuclear transfer, the success rate of cloning in mice has been extremely low. Some histone deacetylase inhibitors, such as trichostatin A and scriptaid, have improved the full-term development of mouse clones significantly, but the mechanisms allowing for this are unclear. ...
Liao Fen-Fen - - 2010
PURPOSE: A possible interaction between valproic acid and ertapenem resulting in reduced serum valproic acid levels in two patients is reported. SUMMARY: In the first case, a 47-year-old woman was brought to the emergency department (ED) with fever, pain, redness, swelling, and local heat in the tissue around her tracheostomy ...
Kaye Jonathan D - - 2010
PURPOSE: Gross, intractable hematuria is rare in children. Although the role of epsilon aminocaproic acid in the management of refractory hematuria is well established in the adult population, few data exist about its use in children for this indication. We present our initial experience with epsilon aminocaproic acid for the ...
Miftode Alina Monica - - 2010
In the present study there is described a simple and sensitive method for the evaluation of antioxidant activity in chlorpromazine-Fe (III) system using ascorbic acid as standard. Chlorpromazine [2-chloro-N-(3-dimethyl-aminopropyl)-phenothiazine] is oxidized in acidic media by Fe (III) with the formation of a stable radical cation characterized by an intense visible ...
Lampón Natalia - - 2010
In rats a significant increase of the copper biliary excretion is produced by valproic acid administration, however, a conclusive study on the possible appearance of copper deficiency in humans during treatment with this drug has still not been carried out. In 101 adult epileptic patients treated in monotherapy (n=75) and ...
Perrott Jerrold - - 2010
OBJECTIVE: To review the evidence supporting the efficacy and safety of l-carnitine in the management of acute valproic acid overdose. DATA SOURCES: MEDLINE (1950-May 2010), EMBASE (1980-May 2010), and Google Scholar (to May 2010) were searched, using the terms carnitine, valproic acid, and carnitine for valproic acid overdose. Reference citations ...
- - 2010
Tranexamic acid can reduce bleeding in patients undergoing elective surgery. We assessed the effects of early administration of a short course of tranexamic acid on death, vascular occlusive events, and the receipt of blood transfusion in trauma patients. This randomised controlled trial was undertaken in 274 hospitals in 40 countries. ...
Gökçe Selim - - 2010
Hepatotoxicity as a result of valproic acid therapy is well documented. Elevation in aminotransferase activities is rarely associated with symptoms. It sometimes manifests as acute liver failure. Here, we report a 8-year-old girl who was referred for unresolving jaundice and itching for 3 months. Past history revealed afebrile convulsion 5 ...
Ji Qiaoli - - 2010
The hepatotoxicity induced by valproic acid (VPA) has been described in many clinical studies and the related mechanism has been partly elucidated. The objective of this study is to investigate the hepatotoxicity and its underlying mechanism of valproic acid on human hepatoma carcinoma cell line HepG2. The cell viability was ...
Nuutinen Tapio - - 2010
Clusterin is a secreted molecular chaperone, also called apolipoprotein J. Recent genetic studies have demonstrated that clusterin is a significant susceptibility gene for late-onset Alzheimer's disease (AD). Clusterin shares several properties with apolipoprotein E, a well-known risk gene for AD, i.e. they bind to amyloid-beta peptides and are present in ...
Glauser Tracy A TA Comprehensive Epilepsy Center, Division of Neurology, Cincinnati Children's Hospital, 3333 Burnet Ave., MLC 2015, Cincinnati, OH 45229, USA. - - 2010
Childhood absence epilepsy, the most common pediatric epilepsy syndrome, is usually treated with ethosuximide, valproic acid, or lamotrigine. The most efficacious and tolerable initial empirical treatment has not been defined. In a double-blind, randomized, controlled clinical trial, we compared the efficacy, tolerability, and neuropsychological effects of ethosuximide, valproic acid, and ...
Starer Jacquelyn J Faulkner Hospital Addiction Recovery Program, Boston, Massachusetts 02130, USA. - - 2010
Benzodiazepine withdrawal is accompanied by a risk of seizures, delirium, and death. While a gradual outpatient taper off of benzodiazepines is the most commonly recommended method for discontinuation, acute inpatient detoxification and seizure prophylaxis may be necessary for some. Complications related to the use of valproic acid for seizure prophylaxis ...
Fourcade Stéphane - - 2010
X-linked adrenoleukodystrophy (X-ALD) is a fatal, axonal demyelinating, neurometabolic disease. It results from the functional loss of a member of the peroxisomal ATP-binding cassette transporter subfamily D (ABCD1), which is involved in the metabolism of very long-chain fatty acids (VLCFA). Oxidative damage of proteins caused by excess of the hexacosanoic ...
Ngaage Dumbor L - - 2010
In view of the safety concerns that led to the withdrawal of aprotinin, should antifibrinolytics be used indiscriminately in cardiac surgery? This meta-analysis examines the efficacy and safety profile of tranexamic acid, and in comparison to aprotinin. We identified randomised trials and large observational studies investigating the use tranexamic acid ...
Grassin Delyle Stanislas - - 2010
BACKGROUND: Tranexamic acid is a synthetic lysine analog used for management of bleeding disorders. The objective of this study was first to develop a method for measurement of tranexamic acid in human serum using liquid chromatography coupled to ion-trap mass spectrometry (LC-MS/MS), and then to validate it throughout a wide ...
Weide Rudolf - - 2010
AIMS: This retrospective study investigated the rates of renal impairment in patients with multiple myeloma treated with zoledronic acid and ibandronate. MATERIALS AND METHODS: We retrospectively reviewed medical records in a German oncology clinic, from May 2001 to December 2005. Creatinine measurements were analyzed from baseline (before zoledronic acid or ...
Hollick Rosemary Jane - - 2010
We report a case of melorheostosis, a rare bone disorder characterised by mesodermal dysplasia, and its successful and prolonged treatment with the intravenous bisphosphonate zoledronic acid. The middle-aged man presented with pain and swelling of his tibia, which was diagnosed by imaging and bone biopsy as being due to melorheostosis. ...
Varshosaz Jaleh - - 2010
The objective of this study was production of nanostructured lipid carriers (NLC) of valproic acid for brain delivery thought the nasal pathway. NLC were prepared by solvent diffusion method using a Taguchi design. The lipid, oil and valproic acid were dissolved in organic phase then dispersed in aqueous phase containing ...
Chateauvieux Sébastien - - 2010
Valproic acid (VPA), a branched short-chain fatty acid, is widely used as an antiepileptic drug and a mood stabilizer. Antiepileptic properties have been attributed to inhibition of Gamma Amino Butyrate (GABA) transaminobutyrate and of ion channels. VPA was recently classified among the Histone Deacetylase Inhibitors, acting directly at the level ...
Serefoglu Ege Can - - 2010
Glucocorticoids are essential in treating many disorders and they are widely used in spite of their negative impact on the skeletal system. As bisphosphonates reduce bone resorption through their action on osteoclasts, they play an important role in management of glucocorticoid-induced osteoporosis. Unlike other bisphosphonates, zoledronic acid is given by ...
Nagalakshmi Nanjangud Chandrashekar - - 2010
A 12-year-old female was admitted to hospital with complaints of abnormal behavior. She was on valproic acid 200mg twice daily and clobazam 5mg at night for the past 13 weeks for her complex partial seizures with secondary generalized seizures. On day 60 of the treatment with valproic acid she developed ...
Royston David - - 2010
The withdrawal of marketing approval for aprotinin resulted in more clinicians administering tranexamic acid to patients at increased risk of bleeding and adverse outcome. The latest in a series of retrospective analyses of observational data is published in Critical Care and suggests an increase in mortality, when compared to data ...
Novikova Natalia - - 2010
Postpartum haemorrhage (PPH) is a common and occasionally life-threatening complication of labour. Several options for preventing PPH are available, but further advances in this field are important, especially the identification of safe, easy to use, and cost-effective regimes. Tranexamic acid, which is an antifibrinolytic that is used widely to prevent ...
- - 2009
In a trial including 38 children, lamotrigine, which had to be introduced very gradually in order to reduce the risk of potentially severe skin reactions, took longer than valproic acid to control typical absence seizures.
- - 2009
(1) Numerous follow-up studies of pregnancies in women with epilepsy show that valproic acid is more teratogenic than other antiepileptics. The risk of malformations increases with doses above 1000 mg/day; (2) Malformations associated with valproic acid include neural tube defects in 1-2% of exposed children, as well as urogenital, craniofacial ...
Mancl Erin E - - 2009
OBJECTIVE: To critically evaluate the mechanisms of the interaction between valproic acid and carbapenem antibiotics. DATA SOURCES: A PubMed search (January 1971-June 2009) was performed to identify literature on the interaction between valproic acid and carbapenem antibiotics. Additional references were identified through review of bibliographies of identified articles. STUDY SELECTION ...
Werner de Castro G R - - 2010
Zoledronic acid is effective for osteoporosis at a single annual intravenous dose. It usually causes few adverse effects; the most common are related to acute phase reactions. We reported the case of a 64-year-old woman who presented flare-up of hand osteoarthritis after zoledronic acid infusions. Despite the fact that arthralgia ...
Wang C-S - - 2011
Tranexamic acid is commonly used to treat various kinds of bleeding disorders. It has been shown to cause severe convulsions in animal experiments. We report a patient who experienced a single convulsive seizure that resulted in transient hyperammonemia during treatment with tranexamic acid. A 68-year-old man was admitted and received ...
McClung Michael - - 2009
To evaluate the efficacy of zoledronic acid in the prevention of bone loss in postmenopausal women with low bone mass. In this 2-year, randomized, multicenter, double-blind, placebo-controlled study, postmenopausal women with low bone mass were selected randomly to receive either zoledronic acid 5 mg intravenously at randomization and at month ...
Poretti Andrea - - 2009
Valproic acid (VPA) is frequently used as an antiepileptic drug. Several side effects are known. We report on a child with onychomadesis as a possible side-effect of treatment with VPA. Normal nail growth was observed after stopping VPA. The pathomechanism of onychomadesis due to VPA treatment remains unclear.
Krivokuca I - - 2011
Tranexamic acid (TA) used in a variety of conditions associated with bleeding has been associated with potential thrombotic side effects such as formation of thrombi and pulmonary embolism (PE). We describe a case of a woman with chronic hemoptysis and a history of PE, who recently used TA as a ...
Fontana Jos?? Domingos - - 2009
Ethyl esters from uncommon fatty acids, such as valproic, azelaic, and sorbic acids, were chemically synthesized and identified by gas chromatography or liquid chromatography coupled to mass spectrometry. Some properties were evaluated to determine their potential for use as biofuels or in other commercial applications. They have remarkable and pleasant ...
Colucci Annalisa - - 2009
Zoledronic acid is the most effective treatment in patients with hypercalcemia secondary to malignancy; occasionally it can be related to ocular inflammation. We report a case of severe unilateral anterior uveitis following administration of intravenous zoledronic acid in a patient with frontal hyperostosis secondary to breast cancer. The patient developed ...
Koller Michael F - - 2009
A 52-year-old man was found dead in his bed. He had financial and psychosocial problems like separation from his wife and children or unemployment due to alcoholism. Under treatment of disulfiram he was presently abstinent from alcohol. As he had suffered from epileptic seizures and dizziness, he received valproic acid ...
Mohseni Kamal - - 2009
We present a case of accidental injection of tranexamic acid instead of bupivacaine during spinal anesthesia. One minute after intrathecal injection of 3.5 mL of solution, the patient developed myoclonus of his lower extremities. Accidental intrathecal injection of the wrong drug was suspected and a used ampule of tranexamic acid ...
< 2 3 4 5 6 7 8 9 10 11 12 >