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The Effect of Mechanical Circulatory Support on Thrombocytopenia. J Heart Lung Transplant 2022. [DOI: 10.1016/j.healun.2022.01.1520] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
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Intravenous regional anesthesia as an anesthetic technique for a patient with ventricular bigeminy. Ann Card Anaesth 2016; 18:267-8. [PMID: 25849707 PMCID: PMC4881641 DOI: 10.4103/0971-9784.154500] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
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A comparative study of complications and long term outcomes of Surgical Tracheostomy and two techniques of Percutaneous Tracheostomy. Indian J Crit Care Med 2015; 19:82-6. [PMID: 25722549 PMCID: PMC4339909 DOI: 10.4103/0972-5229.151015] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Context: The operative technique for surgical tracheostomy has remained unchanged, but different techniques for percutaneous tracheostomy have evolved due to interest in minimally invasive procedures for the critically ill patient. Aims: To compare the periprocedural complications and long term outcomes of bedside surgical tracheostomy (ST) with two percutaneous tracheostomy (PCT) techniques, namely serial guide wire dilating forceps (GWDF) and PercuTwist (PT). Settings and Design: This prospective observational study was carried out in ICU of a tertiary referral centre over three year period on adult intubated patients needing elective tracheostomy. Materials and Methods: Patients with anticipated difficult neck anatomy were assigned for ST based on discretion of intensivist. Patients included for PCT were randomly assigned to the GWDT and PT technique. 90 patients underwent either bedside ST (n = 30), PCT by GWDF technique (n = 30) or PCT with PercuTwist (n = 30) and were followed up with fibreoptic bronchoscopy monthly for 06 months. Statistical Analysis Used: Data was analyzed by applying chi square tests for categorical variables. Results: Periprocedural complications during PCT included major bleeding (>100ml) in two patients in GWDF group which required conversion to ST. Periprocedural bleeding was also the main complication in ST. Increased incidence of granulation tissue and tracheal narrowing in long term was seen in both ST and PCT groups. All of the P values analysed for the intra operative, post operative complications or long term outcomes were >0.05. Conclusions: There was no statistically significant difference in incidence of complications of ST and two techniques of PCT. Proper case selection makes PCT as safe as ST.
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Anaesthetic management for laparoscopic cholecystectomy in patient with situs inversus totalis. Indian J Anaesth 2015; 59:57-8. [PMID: 25684818 PMCID: PMC4322107 DOI: 10.4103/0019-5049.149459] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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Safety of Y90 glass and resin microspheres for the treatment of hepatocellular carcinoma: a systematic review. J Vasc Interv Radiol 2015. [DOI: 10.1016/j.jvir.2014.12.295] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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Relationship Between Microbiological Eradication and Clinical Outcome with Antibiotic Treatment in Nosocomial Pneumonia, Complicated Urinary Tract Infection, and Complicated Intra-Abdominal Infection. VALUE IN HEALTH : THE JOURNAL OF THE INTERNATIONAL SOCIETY FOR PHARMACOECONOMICS AND OUTCOMES RESEARCH 2014; 17:A664. [PMID: 27202423 DOI: 10.1016/j.jval.2014.08.2443] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
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Comparative Efficacy and Safety of Empagliflozin with Other Antidiabetic Drugs for the Third Line Treatment of Type 2 Diabetes Mellitus. VALUE IN HEALTH : THE JOURNAL OF THE INTERNATIONAL SOCIETY FOR PHARMACOECONOMICS AND OUTCOMES RESEARCH 2014; 17:A333. [PMID: 27200586 DOI: 10.1016/j.jval.2014.08.630] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
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Comparative Efficacy and Safety of Empagliflozin with Other Anti-Diabetic Drugs for the Treatment of Patients with Type 2 Diabetes Mellitus Who are Failing Insulin. VALUE IN HEALTH : THE JOURNAL OF THE INTERNATIONAL SOCIETY FOR PHARMACOECONOMICS AND OUTCOMES RESEARCH 2014; 17:A332-A333. [PMID: 27200580 DOI: 10.1016/j.jval.2014.08.629] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
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Comparative Efficacy and Safety of Empagliflozin with Other Oral Antidiabetic Drugs for the Second Line Treatment of Type 2 Diabetes Mellitus. VALUE IN HEALTH : THE JOURNAL OF THE INTERNATIONAL SOCIETY FOR PHARMACOECONOMICS AND OUTCOMES RESEARCH 2014; 17:A333. [PMID: 27200585 DOI: 10.1016/j.jval.2014.08.631] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
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The risk of elevated prolactin levels in pediatric patients exposed to antipsychotics for the treatment of schizophrenia and schizophrenia spectrum disorders: protocol for a systematic review and meta-analysis. Syst Rev 2014; 3:116. [PMID: 25312992 PMCID: PMC4199775 DOI: 10.1186/2046-4053-3-116] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/26/2014] [Accepted: 10/06/2014] [Indexed: 01/19/2023] Open
Abstract
BACKGROUND Antipsychotic medications, particularly second-generation antipsychotics, are increasingly being used to alleviate the symptoms of schizophrenia and other severe mental disorders in the pediatric population. While evidence-based approaches examining efficacy and safety outcomes have been reported, no review has evaluated prolactin-based adverse events for antipsychotic treatments in schizophrenia and schizophrenia spectrum disorders. METHODS/DESIGN Searches involving MEDLINE, EMBASE, CENTRAL, PsycINFO, and clinical trial registries (ClinicalTrials.gov, Drug Industry Document Archive [DIDA], International Clinical Trials Registry Platform [ICTRP]) will be used to identify relevant studies. Two reviewers will independently screen abstracts and relevant full-text articles of the papers identified by the initial search according to the prospectively defined eligibility criteria. Data extraction will be conducted in duplicate independently. Pairwise random effects meta-analyses and network meta-analyses will be conducted on individual drug and class effects where appropriate. DISCUSSION This systematic review will evaluate prolactin-based adverse events of first- and second-generation antipsychotics in the pediatric population with schizophrenia and schizophrenia spectrum disorders. It will also seek to strengthen the evidence base of the safety of antipsychotics by incorporating both randomized controlled trials and observational studies. SYSTEMATIC REVIEW REGISTRATION PROSPERO CRD42014009506.
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Abstract
OBJECTIVE To compare the efficacy of the three nonergot dopamine-receptor agonists (DAs) pramipexole, ropinirole, and rotigotine for the treatment of early and advanced Parkinson's disease (PD). MATERIALS AND METHODS Bayesian network meta-analyses were performed separately for early and advanced PD, and at time points 11-16 and 24-28 weeks. Outcomes for early PD included improvement on the Unified Parkinson's Disease Rating Scale (UPDRS) activities in daily life (UPDRS-II), motor function (UPDRS-III), and their subtotal (UPDRS-II + III). Outcomes for advanced PD also included daily "off time" (hours), but not UPDRS-II + III. RESULTS Totals of 23 and 24 trials informed early and advanced PD analyses. For early PD UPDRS-II at 11-16 weeks, pramipexole and rotigotine were statistically significantly superior to placebo, but ropinirole was not. For UPDRS-III and UPDRS-II + III, all DAs were statistically significantly better than placebo and exhibited similar improvements. At 24-28 weeks, results were also statistically significant for all DAs versus placebo, and the magnitudes of improvements were similar for pramipexole, ropinirole and rotigotine. Advanced PD improvements on UPDRS-II, UPRDS-III, and off time were statistically significant for pramipexole, ropinirole, and rotigotine versus placebo. At 11-16 weeks, rotigotine yielded slightly smaller effects than ropinirole and pramipexole, but credible intervals on differences were wide. For off time, results were near identical. At 24-28 weeks, results were similar for all three outcomes. Ropinirole yielded a slightly higher improvement on UPDRS-III, but a slightly smaller improvement in off time. CONCLUSION Our analyses suggest that pramipexole, ropinirole, and rotigotine exhibit similar efficacy in the treatment of early and advanced PD.
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A comparison of intrathecal dexmedetomidine verses intrathecal fentanyl with epidural bupivacaine for combined spinal epidural labor analgesia. JOURNAL OF OBSTETRIC ANAESTHESIA AND CRITICAL CARE 2014. [DOI: 10.4103/2249-4472.143875] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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Abstract P1-04-16: Multi-center experience with CELLSEARCH® circulating tumor cell kit on patients with metastatic breast cancer. Cancer Res 2013. [DOI: 10.1158/0008-5472.sabcs13-p1-04-16] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background: Clinical studies have shown that circulating tumor cell (CTC) detection via the CELLSEARCH® assay is a validated prognostic marker for the prediction of progression-free survival (PFS) and overall survival (OS) in metastatic breast cancer (mBC) patients. We evaluated the impact of CTC testing on OS using real-world observational data from multiple centers.
Material and Methods: Electronic medical records (EMR) were used to identify patients who were: (i) women > 18 years diagnosed with mBC on or after their date of registration, (ii) registered to the EMR system on or after 4/1/2010, and (iii) followed for at least 2 months from the time of metastases. Patients who had CTC testing were required to have at least 1 valid CTC test result. OS among mBC patients with CTC testing was compared to a cohort of patients without CTC testing (non-CTC) using a Cox model controlling for age, race, hormone receptor status, and scanning frequency.
Results: CTC patients were treated in 43 centers and grouped into two main sites based on region (N1 = 123, N2 = 240); non-CTC patients were treated in 58 different centers (N = 1,115). Mean (SD) ages of CTC and non-CTC patients were 66 (13) and 65 (14) years, respectively. ER or PR+ patients comprised 77% of the CTC tested and 72% of the non-CTC samples. The majority of patients in both cohorts were Caucasian (83% - CTC, 57% - non-CTC). A Cox model comparing OS between CTC and non-CTC patients did not show a survival benefit due to CTC testing. Comparing CTC testing frequency between the two sites showed that, on average, the 123 patients from site 1 were tested more frequently than the 240 patients in site 2 (0.6 vs. 0.3 CTC tests/month, p-value<0.001). The model that compared OS between CTC patients from site 1 showed a 43% reduction in risk of death (HR = 0.58, p-value = 0.005) compared to the overall cohort of non-CTC patients. Patients from site 2 did not show a reduction in risk of death compared to non-CTC patients, but a significant interaction between CTC testing and race (Caucasian vs. non-Caucasian) (p-value = 0.005) was observed. For Caucasians, CTC patients exhibited a 37% reduction in risk of death compared to non-CTC patients; reduction in risk of death was not observed for non-Caucasians CTC patients. This interaction (p-value = 0.005) was consistent among the subset of ER or PR+ Caucasian patients relative to non-CTC ER or PR+ Caucasian patients (HR = 0.55). For site 1, the subset of ER or PR+ CTC also had a lower risk of dying compared to ER or PR+ non-CTC (HR = 0.47, p-value = 0.004).
Discussion: These results suggest that frequent serial testing for CTC may be associated with better prognosis compared to no CTC testing or even infrequent CTC testing. By more frequent monitoring, the assessment of serial CTCs provide clinicians with more frequent information, which in turn can provide a clearer understanding of a patient's cancer progression in a metastatic setting. One limitation of these results is the difficulty in ruling out other potential drivers. Particularly, results regarding the racial differences in outcomes where race might serve as a proxy for a number of factors such as severity of disease which is difficult to derive from a retrospective observational database.
Citation Information: Cancer Res 2013;73(24 Suppl): Abstract nr P1-04-16.
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Abstract
BACKGROUND Stopping smoking is associated with many important improvements in health and quality of life. The use of cessation medications is recommended to increase the likelihood of quitting. However, there is historical and renewed concern that smoking cessation therapies may increase the risk of cardiovascular disease events associated within the quitting period. We aimed to examine whether the 3 licensed smoking cessation therapies-nicotine replacement therapy, bupropion, and varenicline-were associated with an increased risk of cardiovascular disease events using a network meta-analysis. METHODS AND RESULTS We searched 10 electronic databases, were in communication with authors of published randomized, clinical trials (RCTs), and accessed internal US Food and Drug Administration reports. We included any RCT of the 3 treatments that reported cardiovascular disease outcomes. Among 63 eligible RCTs involving 21 nicotine replacement therapy RCTs, 28 bupropion RCTs, and 18 varenicline RCTs, we found no increase in the risk of all cardiovascular disease events with bupropion (relative risk [RR], 0.98; 95% confidence interval [CI], 0.54-1.73) or varenicline (RR, 1.30; 95% CI, 0.79-2.23). There was an elevated risk associated with nicotine replacement therapy that was driven predominantly by less serious events (RR, 2.29; 95% CI, 1.39-3.82). When we examined major adverse cardiovascular events, we found a protective effect with bupropion (RR, 0.45; 95% CI, 0.21-0.85) and no clear evidence of harm with varenicline (RR, 1.34; 95% CI, 0.66-2.66) or nicotine replacement therapy (RR, 1.95; 95% CI, 0.26-4.30). CONCLUSION Smoking cessation therapies do not appear to raise the risk of serious cardiovascular disease events.
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Is fibreoptic bronchoscopy a must prior to one lung ventilation in a situs inversus patient? J Anaesthesiol Clin Pharmacol 2013; 29:404-5. [PMID: 24106375 PMCID: PMC3788249 DOI: 10.4103/0970-9185.117055] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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Cost Implications of Early Treatment among Patients with Alzheimer's Disease - A Medicaid Perspective (S04.007). Neurology 2012. [DOI: 10.1212/wnl.78.1_meetingabstracts.s04.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Phytoremediation of anthracene by transgenic tobacco plants with a fungal glutathione-S-transferase gene. N Biotechnol 2009. [DOI: 10.1016/j.nbt.2009.06.662] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Differential regulation of transforming growth factor beta signaling pathways by Notch in human endothelial cells. J Biol Chem 2009; 284:19452-62. [PMID: 19473993 DOI: 10.1074/jbc.m109.011833] [Citation(s) in RCA: 86] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Notch and transforming growth factor beta (TGFbeta) play critical roles in endothelial-to-mesenchymal transition (EndMT), a process that is essential for heart development. Previously, we have shown that Notch and TGFbeta signaling synergistically induce Snail expression in endothelial cells, which is required for EndMT in cardiac cushion morphogenesis. Here, we report that Notch activation modulates TGFbeta signaling pathways in a receptor-activated Smad (R-Smad)-specific manner. Notch activation inhibits TGFbeta/Smad1 and TGFbeta/Smad2 signaling pathways by decreasing the expression of Smad1 and Smad2 and their target genes. In contrast, Notch increases SMAD3 mRNA expression and protein half-life and regulates the expression of TGFbeta/Smad3 target genes in a gene-specific manner. Inhibition of Notch in the cardiac cushion of mouse embryonic hearts reduces Smad3 expression. Notch and TGFbeta synergistically up-regulate a subset of genes by recruiting Smad3 to both Smad and CSL binding sites and cooperatively inducing histone H4 acetylation. This is the first evidence that Notch activation affects R-Smad expression and that cooperative induction of histone acetylation at specific promoters underlies the selective synergy between Notch and TGFbeta signaling pathways.
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Enhanced Production of the Polysaccharide Arabinogalactan Using Immobilized Cultures of Tinospora cordifolia by Elicitation and In Situ Adsorption. Biotechnol Prog 2005; 21:1688-91. [PMID: 16321052 DOI: 10.1021/bp050188w] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Immobilized callus cultures of Tinospora cordifolia (Willd) Miers ex Hooks and Thoms were investigated to find out the combined effect of elicitation, cell permeabilization with chitosan and in situ product recovery by polymeric neutral resin-like Diaion HP 20. In this study, callus cultures of T. cordifolia were immobilized using sodium alginate and calcium chloride and the beads were cultured in Murashige and Skoog's basal medium along with benzyl adenine (BA), 2,4-dichlorophenoxy acetic acid (2,4-D) and 3% sucrose. The immobilized cultures, when subjected to elicitation and cell permeabilization with chitosan and in situ removal of the secondary metabolites by addition of resin, showed a 10-fold increase in production of arabinogalactan (0.490% dry weight) as compared to respective controls devoid of resin and chitosan. This indicates that in situ adsorption may have reduced the feedback inhibition caused by accumulation of secondary metabolites in the media, while the dual effect of elicitation and cell permeabilization by chitosan may have released the intracellular (secreted) berberine and the polysaccharide arabinogalactan, respectively.
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Uptake and degradation of DDT by hairy root cultures of Cichorium intybus and Brassica juncea. CHEMOSPHERE 2005; 61:1288-92. [PMID: 15885743 DOI: 10.1016/j.chemosphere.2005.03.086] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2004] [Revised: 02/10/2005] [Accepted: 03/26/2005] [Indexed: 05/02/2023]
Abstract
Hairy root cultures of Cichorium intybus and Brassica juncea were used for their ability to uptake and degrade DDT (1,1,1-trichloro-2,2-bis-(4'-chlorophenyl)ethane). After 24 h of 14C DDT treatment, only 12-13% of the total applied radioactivity was detected in the culture media, indicating the efficient uptake of DDT by the hairy roots. The majority of the applied radioactivity was associated with the roots. DDT was degraded to various other products such as DDD, DDE and DDMU, along with some unknown compounds by hairy root cultures, which were detected by thin layer chromatography (TLC) and autoradiography. The rate of in situ degradation was found to be higher during the initial stages of culture and the residual 14C DDT in the roots was found to decrease from 77% to 61% over a period of 10-days. There was no spontaneous degradation of 14C DDT in media lacking hairy root cultures or in media with autoclaved hairy roots. This suggests that endogenous root enzymes play a role in the breakdown of 14C DDT. These results suggest the potential applicability and advantage of using these plant species for phytoremediation of persistent xenobiotics such as DDT in an eco-friendly and efficient manner for environmental clean up.
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A randomized phase III intergroup study of perioperative fluorouracil (5-FU) in patients with resectable colon cancer. J Clin Oncol 2005. [DOI: 10.1200/jco.2005.23.16_suppl.3552] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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The clinical significance of thymidylate synthase (TS) expression in primary colorectal cancer: An Intergroup combined analysis. J Clin Oncol 2005. [DOI: 10.1200/jco.2005.23.16_suppl.3510] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Abstract
BACKGROUND Tourette syndrome (TS) and related tic disorders are commonly associated with obsessive-compulsive disorder (OCD) and attention deficit hyperactivity disorder (ADHD). It has been argued, however, that any observed association between TS and these and other psychopathologies may be due to ascertainment bias in that individuals with multiple problems are more likely to be referred for medical evaluation. METHODS In order to overcome the potential confounding by ascertainment bias, the authors conducted a community-based study of school children using direct interviews to determine the prevalence of tic disorders and any comorbid psychopathology. A standard psychiatric interview and standardized rating scales were utilized to diagnose childhood behavioral disorders. RESULTS Of the 1,596 children interviewed, 339 were identified as having tics. The following psychopathologies were found more commonly (p < 0.05) in the children with tics: OCD, ADHD, separation anxiety, overanxious disorder, simple phobia, social phobia, agoraphobia, mania, major depression, and oppositional defiant behavior. CONCLUSION The behavioral spectrum of tic disorders includes OCD, other anxiety disorders, a mood disorder, and attention-deficit and disruptive behavior disorders.
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Abstract
In groundnut, two identical mutants with disease lesion mimic leaf trait were isolated independently from two different parents through induced mutagenesis and in vitro culture technique. The leaf chlorophyll content in both the mutants was found to be drastically reduced. The segregation pattern in the F(2) and F(3) generations for normal and mutant traits fitted a 13:3 ratio, indicating that the disease lesion mimic trait in the mutants was due to suppressive gene action. Both mutants were allelic for the disease mimic trait.
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Abstract
BACKGROUND Based on the knowledge that Tourette's syndrome (TS) is associated with several clinical features that can impair school function and growing evidence that the disorder is much more common than previously thought, the authors hypothesized that TS and related tic disorders would be associated with school problems in the childhood population at large. METHODS Direct, blinded (to educational placement) interviews of 1,596 schoolchildren in Monroe County, Rochester, NY, were conducted. RESULTS Twenty-seven percent of 341 students classified as receiving special education (SpEd) had tics compared with 19.7% (p = 0.008) of 1,255 students in regular classroom programs (RegEd). The weighted prevalence estimates for tics were 23.4% in SpEd and 18.5% in RegEd. A higher percentage of students in SpEd (7.0%) met diagnostic criteria for TS than students in RegEd (3.8%; p = 0.01). CONCLUSIONS Although possibly influenced by selection bias, our results indicate that tic disorders are common in children and are highly associated with school dysfunction. Tics may represent an identifiable sign of an underlying brain developmental disorder that contributes to academic difficulties.
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Syntheses, structural determination, and electrochemistry of Ru(2)(Fap)(4)Cl and Ru(2)(Fap)(4)(NO)Cl. Inorg Chem 2001; 40:2282-6. [PMID: 11327903 DOI: 10.1021/ic001315i] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Ru(2)(Fap)(4)Cl and Ru(2)(Fap)(4)(NO)Cl, where Fap is the 2-(2-fluoroanilino)pyridinate anion, were synthesized, and their structural, electrochemical, and spectroscopic properties were characterized. Ru(2)(Fap)(4)Cl, which was obtained by reaction between Ru(2)(O(2)CCH(3))(4)Cl and molten HFap, crystallizes in the monoclinic space group P2(1)/c, with a = 11.2365(4) A, b = 19.9298(8) A, c = 19.0368(7) A, beta = 90.905(1) degrees, and Z = 4. The presence of three unpaired electrons on the Ru(2)(5+) core and the 2.2862(3) A Ru-Ru bond length for Ru(2)(Fap)(4)Cl are consistent with the electronic configuration (sigma)(2)(pi)(4)(delta)(2)(pi*)(2)(delta*)(1). The reaction between Ru(2)(Fap)(4)Cl and NO gas yields Ru(2)(Fap)(4)(NO)Cl, which crystallizes in the orthorhombic space group Pbca, with a = 10.0468(6) A, b = 18.8091(10) A, c = 41.7615(23) A, and Z = 8. The Ru-Ru bond length of Ru(2)(Fap)(4)(NO)Cl is 2.4203(8) A, while its N-O bond length and Ru-N-O bond angle are 1.164(8) A and 155.8(6) degrees, respectively. Ru(2)(Fap)(4)(NO)Cl can be formulated as a formal Ru(2)(II,II)(NO(+)) complex with a linear Ru-N-O group, and the proposed electronic configuration for this compound is (sigma)(2)(pi)(4)(delta)(2)(pi*)(3)(delta*)(1). The binding of NO to Ru(2)(Fap)(4)Cl leads to some structural changes of the Ru(2)(Fap)(4) framework and a stabilization of the lower oxidation states of the diruthenium unit. Also, IR spectroelectrochemical studies of Ru(2)(Fap)(4)(NO)Cl show that NO remains bound to the complex upon reduction and that the first reduction involves the addition of an electron on the diruthenium core and not on the NO axial ligand.
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Familial infantile myaesthenia. THE JOURNAL OF THE ASSOCIATION OF PHYSICIANS OF INDIA 2000; 48:439-40. [PMID: 11273185] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/19/2023]
Abstract
We report a family of two brothers with familial infantile myaesthenia which is an autosomal recessive congenital myaesthenic syndrome. It is a presynaptic neuro muscular junction disorder, responsive to treatment and has got good prognosis.
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Abortion and unplanned pregnancy. JAMA 2000; 283:1565-6; author reply 1566-7. [PMID: 10735385] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/15/2023]
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Covalent coupling of immunoglobulin G to a poly(vinyl)alcohol-poly(acrylic acid) graft polymer as a method for fabricating the interfacial-recognition layer of a surface plasmon resonance immunosensor. Biosens Bioelectron 1998; 13:383-96. [PMID: 9642773 DOI: 10.1016/s0956-5663(97)00114-0] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The synthesis of a terminally thiolated poly(vinyl)alcohol (PVA) grafted with Poly (acrylic acid) (PAA) side chains is described. The PVA-PAA graft polymer (PVAg) was end-tethered to silver surfaces via the terminal thiol functionality and the resultant mobile, hydrophilic polymer matrix exploited for the covalent immobilization of large quantities of polyclonal goat (anti-hIgG) antibody (IgG) with low levels of non-specific adsorption. An SPR immunosensor, fabricated with an IgG-PVA-silver interfacial layer proved capable of performing a sensitive label-free assay of human IgG antigen (hIgG) with minimal non-specific binding interference. A detection limit (DL) for hIgG from serum of 0.8 microgram/ml (5 nM) and an assay sensitivity of 0.66 ng hIgG/mm2/nM are reported.
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Elevated serum glycosaminoglycans with hypomagnesemia in patients with coronary artery disease & thrombotic stroke. Indian J Med Res 1995; 101:115-9. [PMID: 7751039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
Abstract
Elevated levels of serum glycosaminoglycans (GAG), associated with hypomagnesemia were observed in patients of proven CAD and thrombotic stroke in Kerala. Serum lipid profile was normal in the majority of these patients, indicating that elevated serum GAG may be an even more reliable indicator of atherosclerosis than elevated serum total cholesterol or LDL cholesterol. Autopsy samples of carotid artery and aorta which had atheroma showed significantly higher GAG when compared to samples which showed no atheroma. Serum Mg levels were significantly lower in CAD and thrombotic stroke patients as compared to controls. Mg deficiency may be one of the factors involved in the increased level of GAG.
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Agrobacterium tumefaciens mediated gene transfer in peanut (Arachis hypogaea L.). PLANT CELL REPORTS 1994; 13:582-586. [PMID: 24196226 DOI: 10.1007/bf00234516] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/26/1993] [Revised: 03/18/1994] [Indexed: 06/02/2023]
Abstract
Transgenic peanut plants were produced using Agrobacterium mediated gene transfer. Primary leaf explants of peanut were co-cultivated with Agrobacterium tumefaciens LBA 4404 harbouring the binary plasmid pBI 121 (conferring β-glucuronidase activity and resistance to kanamycin) and cultured on regeneration medium supplemented with kanamycin to select putatively transformed shoots. They were rooted and plants were transferred to soil. Stable integration and expression of the transgenes were confirmed by NPT II assay, Southern blot hybridization and GUS assay.
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Organogenesis and embryogenesis from diverse explants in pigeonpea (Cajanus cajan L.). PLANT CELL REPORTS 1994; 13:417-420. [PMID: 24193914 DOI: 10.1007/bf00234150] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/02/1993] [Revised: 01/24/1994] [Indexed: 06/02/2023]
Abstract
Seed and seedling expiants of pigeonpea were evaluated for organogenesis and somatic embryogenesis. De novo plant regeneration through organogenesis was obtained from mature cotyledons, primary leaves and roots of seedlings. Production of multiple shoots from the cotyledonary node was observed in cultures of whole seeds on 6-benzylaminopurine enriched medium. Somatic embryos were induced from immature cotyledons and embryonal axes, however, well-developed plants could not be derived from these embryos. The regenerants obtained through organogenesis were transferred to the field and grown to maturity.
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Abstract
The design, synthesis and chromatographic operation of a new range of stable and selective immobilized dye affinity adsorbents for potential application in the purification of pharmaceutical proteins is described. Computer aided molecular design has been exploited to design novel dye ligands which show a predictable selectivity for the target protein and which, when coupled to stable perfluoropolymer supports, yield high capacity, low leakage adsorbents for affinity chromatography. It is anticipated that these new materials will withstand the rigorous conditions required for sanitization and cleaning in situ of industrial scale processes.
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Stable transformation of moth bean Vigna aconitifolia via direct gene transfer. PLANT CELL REPORTS 1987; 6:313-7. [PMID: 24248768 DOI: 10.1007/bf00272007] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/1987] [Indexed: 05/08/2023]
Abstract
Direct gene transfer proved to be an efficient transformation method for Vigna aconitifolia, a member of the legume family. Kanamycin resistant calli and plants were regenerated from heat shocked protoplasts treated with PEG and plasmid DNA containing the coding region for aminoglycoside phosphotransferase gene (NPT II). The plant cultivar used was an important factor in attaining higher transformation frequencies. Transformation was confirmed by Southern blot analysis using a non-radioactive detection system. Attempts to transform mesophyll and suspension cultured cells by this method were unsuccessful. Protoplasts electroporated with the plasmid pCAP212, which codes for chloramphenicol acetyltransferase, exhibited transient expression of this gene two days after treatment while electroporated cells did not show this enzyme activity. It is therefore assumed that the DNA uptake is prevented by the cell wall.
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Callus induction from protoplasts of V. unguiculata, V. sublobata and V. mungo. TAG. THEORETICAL AND APPLIED GENETICS. THEORETISCHE UND ANGEWANDTE GENETIK 1987; 74:100-103. [PMID: 24241464 DOI: 10.1007/bf00290091] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/25/1986] [Accepted: 12/15/1986] [Indexed: 06/02/2023]
Abstract
Protoplasts were isolated from hypocotyl of V. mungo (L.) Hepper or hypocotyl-derived callus of V. sublobata (Phaseolus sublobata Roxb.) and V. unguiculata (L.) Walp (syn. V. sinensis (L.) Saviex Hassk) using an enzyme solution comprising Cellulase 2.5%, Macerozyme, Hemicellulase and Driselase each at a 0.5% level in 0.5 M sorbitol. Isolated protoplasts were cultured in Murashige and Skoog's (1962) basal liquid medium supplemented with BA, NAA, 2,4-D (1 mg/l each) and sucrose (14%). After four weeks, protoplast colonies were transferred to the same medium with a reduced level of sucrose (7%). Colonies proliferated into actively growing calli. Further attempts to regenerate plants from such calli were not successful. However, protoclones of V. unguiculata differentiated roots on auxin/cytokinin supplemented media. Alternative methods for shoot differentiation from protoplastderived cultures were tried by the use of Agrobacterium tumefaciens "shooter" strains pGV 2215 or pGV 2298 or wild type strain B6S3.
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Regeneration of plants from cultured root explants of mothbean (Vigna aconitifolia L. Jacq. Marechal). TAG. THEORETICAL AND APPLIED GENETICS. THEORETISCHE UND ANGEWANDTE GENETIK 1986; 72:384-387. [PMID: 24247947 DOI: 10.1007/bf00288577] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/07/1985] [Accepted: 01/05/1986] [Indexed: 06/02/2023]
Abstract
Decapitated seedling root explants of seven cultivars of mothbean (Vigna aconitifolia) cultured on Murashige and Skoog's basal medium without any phytohormone gave rise to plantlets at the end of 4-5 weeks. Addition of cytokinins such as BA, Z, Kn and 2,i-P enhanced the frequency of plant regeneration and also the average number of shoot buds/culture. The buds originated directly from cortical cells or through callussing and subsequent differentiation from the surface. The plantlets obtained were successfully transferred to the field.
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Abstract
Kinetic studies on cis-[Pt(NH3)2(OH2)2]2+ and various nucleobases show that this ion reacts more quickly with guanosine than with adenosine, cytidine, and thymidine, and that a monophosphoric acid unit considerably enhances the rate of reaction of guanosine; the kinetic preference of 5'-GMP over 5'-AMP may point to a greater thermodynamic selectivity.
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Plant regeneration from callus cultures of Durum and emmer wheat. PLANT CELL REPORTS 1982; 1:215-218. [PMID: 24257712 DOI: 10.1007/bf00270239] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/12/1982] [Indexed: 06/02/2023]
Abstract
Callus cultures were initiated from isolated mature embryos of Triticum turgidum L. Thell ssps durum and dicoccum on a basal medium supplemented with 2,4-D, 2,4,5-Cl3POP or 2,4-D+CM. Shoot bud regeneration was observed on 2,4,5-Cl3POP medium. In both the cultivars of durum, further development of shoot buds occurred on transfer of tissues to basal medium whereas in dicoccum basal medium supplemented with coconut milk or coconut milk with NAA (0.2 mg/l) was necessary. The regenerated shoot buds were induced to root on basal medium supplemented with NAA. The in vitro obtained plants were transferred to soil and successfully grown to maturity. Chlorophyll variants were observed among the regenerated plants of dicoccum.
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Diet for cancer patients--tube--feeding formulations. Indian J Cancer 1982; 19:226-30. [PMID: 6818135] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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Two NAD-dependent alcohol dehydrogenases (E.C. 1.1.1.1) in callus cultures of wheat, rye and triticale. TAG. THEORETICAL AND APPLIED GENETICS. THEORETISCHE UND ANGEWANDTE GENETIK 1982; 62:45-48. [PMID: 24270533 DOI: 10.1007/bf00276281] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/13/1981] [Accepted: 10/04/1981] [Indexed: 06/02/2023]
Abstract
Two NAD-dependent alcohol dehydrogenases ADH-1 and ADH-2, under independent genetic control of genes designated as Adh-1 and Adh-2 located on chromosomes 4A, 4B and 4D, have been reported in aestivum wheat (Hart 1980). Only ADH-1 is expressed in developing seeds, dry seeds, pollen and germinating seedlings. ADH-2 can be induced in seedling roots or shoots under conditions of partial anaerobiosis or by certain chemicals. Expression of ADH-1 and ADH-2 isoenzymes was investigated in undifferentiated calli from aestivum and durum wheats, rye, triticale and also in in vitro regenerated roots and leaves from aestivum cultures. Wheat callus cultures originating from seed, mature and immature embryos, mesocotyl and root, as well as cultures grown on media containing different supplements did not show any variation in the overall expression of ADH-1 or ADH-2, although differences in the band intensities were observed. The callus isoenzyme pattern was similar to that observed in roots under anaerobic conditions. Both ADH-1 and ADH-2 were expressed in in vitro regenerated roots but were absent in regenerated leaves. Expression of ADH-1 and ADH-2 in wheat calli seems to be related to the type of differentiation.
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Effect of gamma-and ultraviolet-irradiation on survival and totipotency of haploid tobacco cells in culture. PROTOPLASMA 1976; 89:149-55. [PMID: 968047 DOI: 10.1007/bf01279335] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/16/2023]
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Liver phospholipid metabolism: effect of different levels of dietary groundnut protein. INDIAN JOURNAL OF BIOCHEMISTRY 1969; 6:194-8. [PMID: 4245421] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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45
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Fractionation of lipids on thin-layer plates and its comparison with silicic acid column chromatography. INDIAN JOURNAL OF BIOCHEMISTRY 1969; 6:84-7. [PMID: 4242580] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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