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Simultaneous quantification of Losartan Potassium and its Active Metabolite, EXP3174 in Rabbit Plasma by Validated HPLC-PDA. Biomed Chromatogr 2023:e5645. [PMID: 37052130 DOI: 10.1002/bmc.5645] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Revised: 03/16/2023] [Accepted: 04/06/2023] [Indexed: 04/14/2023]
Abstract
Herein we report a novel, accurate and cost-effective validated analytical method for quantification of losartan potassium and its active metabolite, EXP 3174 in rabbit plasma by reversed phase-high performance liquid chromatography. Valsartan was used as an internal standard. The method was validated as per ICH guidelines. The analytes were extracted in rabbit plasma using liquid-liquid extraction technique and analyzed at 247 nm after separation through a reverse phase C18 column. The isocratic mobile phase used is a mixture of acetonitrile, water and glacial acetic acid in the ratio of 60:40:1v/v/v maintained at pH 3.4. All calibration curves showed a good linear relationship (r>0.995) within test range. Precision was evaluated by intra and inter-day tests with RSDs <1.91%, accuracy validation recovery 86.20-101.11%. Based on our results, the developed method features good quantification parameters and can serve as effective quality control method for standardization of drugs.
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Interventricular Interactions in LVAD Recipients: Insights from PV Loop Analysis. J Heart Lung Transplant 2023. [DOI: 10.1016/j.healun.2023.02.854] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/05/2023] Open
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3
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Chronic Renal Replacement Therapy in Patients with Durable Left Ventricular Assist Devices. J Heart Lung Transplant 2023. [DOI: 10.1016/j.healun.2023.02.784] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/05/2023] Open
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Change in REVEAL Lite 2 and COMPERA 2.0 risk status in patients with pulmonary arterial hypertension initiating oral treprostinil on dual background therapy: a retrospective chart review. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.1919] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
Post-hoc analyses of the FREEDOM-EV study demonstrated that addition of oral treprostinil (ORE) to background monotherapy improves risk in patients with pulmonary arterial hypertension (PAH). Evidence is needed to understand the incremental effect of ORE added to dual background therapy with an endothelin receptor antagonist (ERA) and phosphodiesterase-5 inhibitor (PDE5)/soluble guanylate cyclase stimulator (sGC).
Purpose
To describe longitudinal changes in REVEAL Lite 2 and COMPERA 2.0 risk status in patients initiating ORE on dual background therapy.
Methods
A multisite, double-blind retrospective chart review of PAH patients was conducted by US PAH-treating physicians and included patients meeting prior diagnostic PAH criteria (mPAP ≥25 mmHg/PAWP ≤15 mmHg/PVR >3 WU), age ≥18 at diagnosis, began a PAH treatment 01/2014–03/2017, and had NT-proBNP/BNP, WHO functional class (FC), and 6-minute walk distance (6MWD) at baseline visit. Baseline was most recent assessment prior to ORE initiation. This analysis included a subset of patients on dual background therapy at time of ORE initiation without prior prostacyclin use. Follow-up was evaluated in 0–6 and 6–12 months after ORE initiation.
Results
30 (61.2%) of 49 ORE patients were on dual background therapy at time of ORE start; 23 had baseline assessments while on dual background therapy and were included in this analysis. At baseline, mean (SD) 6MWD was 140.9 (49.8) m and 21 (91.3%) patients were FC III. Prior to ORE, median (IQR) time on ERA was 6.6 (5.5–7.6) months and PDE5/sGC was 3.7 (3.3–5.7) months. After ORE start, median (IQR) time to follow-up was 4.3 (3.4–5.6) months in 0–6 months and 10.9 (9.6–11.6) months in 6–12 months. Using REVEAL Lite 2, baseline mean (SD) REVEAL Lite 2 risk score was 7.9 (0.8); 1 (4.4%), 2 (8.7%), and 20 (87%) patients were in the low, intermediate, and high risk strata, respectively. In 0–6 months (n=22), 13 (59.1%) patients improved and 9 (40.9%) stabilized REVEAL Lite 2 risk strata from baseline. In 6–12 months (n=22), mean (SD) REVEAL Lite 2 risk score was 6.5 (1.1); 15 patients (68.2%) improved, 6 (27.3%) stabilized, and 1 (4.6%) worsened REVEAL Lite 2 risk strata from baseline. Using COMPERA 2.0, at baseline, 1 (4.4%) patient was in the intermediate-low and 22 (95.7%) patients were in the intermediate-high risk strata. In 0–6 months (n=15), 10 (66.7%) patients improved and 5 (33.3%) patients stabilized COMPERA 2.0 risk strata from baseline. In 6–12 months (n=17), 15 (88.2%) patients improved and 2 (11.8%) stabilized COMPERA 2.0 risk strata from baseline.
Conclusion
Of patients initiating oral treprostinil in this study, most were on dual background therapy and at high risk by REVEAL Lite 2 or intermediate-high risk by COMPERA 2.0. This analysis suggests adding ORE to dual background therapy can improve risk status in patients, with clinical benefit attained within 6 months and continued incremental improvement through first year of therapy.
Funding Acknowledgement
Type of funding sources: Private company. Main funding source(s): United Therapeutics Corporation
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Development, method validation and simultaneous quantification of eleven bioactive natural products from high altitude medicinal plant by high performance liquid chromatography. Biomed Chromatogr 2022; 36:e5408. [PMID: 35562105 DOI: 10.1002/bmc.5408] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2022] [Revised: 04/19/2022] [Accepted: 05/09/2022] [Indexed: 11/07/2022]
Abstract
Herein, a novel, rapid, reliable, simple method validation and simultaneous quantification of eleven bioactive compounds mostly xanthones have been described. ICH guidelines were used for the analytical method validation. Good linearity, repeatability, intra-day and inter-day precision, accuracy and reliability is well illuminated in the method validation procedure. The calibration curves showed a good linear relationship (r>0.999) within test range. Precision was evaluated by intra- and inter-day tests with RSDs <2.79%, accuracy validation recovery 74.16-91.84%. On quantification study, validated method described the high content of bioactive xanthone derivative including 1-hydroxy-3, 5-dimethoxyxanthone (7), 2-(allyloxy)-8-hydroxy-1, 6-dimethoxyxanthone (6) 1, 7, 8-trihydroxy-3-methoxyxanthone (9) and Coxanthone E (5) in the C. ovata which is advantageous due to numerous pharmacological and biological effects associated with these compounds mostly anti-cancers, antioxidant, anti-inflammatory, anti-mutagenic and anti-obesity activity. The bulk abundance of these compounds can also be used for the further modification to produce better lead molecules for drug discovery with low toxicity and high potency. The proposed method makes it possible to determine simultaneously all bioactive compounds in one run and can be extended for marker based standardization of herbal formulations in medicinal and pharmaceutical industries.
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Photopheresis in Antibody Mediated Rejection: A Single Center Experience. J Heart Lung Transplant 2022. [DOI: 10.1016/j.healun.2022.01.1144] [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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7
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Long Term Safety and Outcomes Utilizing the CardioMEMS Device in Patients with Pulmonary Arterial Hypertension. J Heart Lung Transplant 2022. [DOI: 10.1016/j.healun.2022.01.330] [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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8
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Post-Cardiac Transplant Lymphocytic Thyroiditis Secondary to Amiodarone Use in the Pre-Transplant Period. J Heart Lung Transplant 2020. [DOI: 10.1016/j.healun.2020.01.1124] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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9
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Role of Echocardiogram in Predicting Prognosis in Pulmonary Arterial Hypertension: A Meta-Analysis. J Heart Lung Transplant 2020. [DOI: 10.1016/j.healun.2020.01.121] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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10
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Intra-Aortic Balloon Pump Use before Left Ventricular Assist Device Implantation. J Heart Lung Transplant 2019. [DOI: 10.1016/j.healun.2019.01.1159] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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11
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Determinants of Right Ventricular Dysfunction in Pulmonary Arterial Hypertension: Beyond Pulmonary Vascular Resistance. J Heart Lung Transplant 2019. [DOI: 10.1016/j.healun.2019.01.1233] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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12
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Echocardiographic Estimation of Pulmonary Artery Pulsatility Index in Pulmonary Hypertension. J Heart Lung Transplant 2019. [DOI: 10.1016/j.healun.2019.01.1252] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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13
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Catalase enzyme: Application in bioremediation and food industry. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2018. [DOI: 10.1016/j.bcab.2018.07.035] [Citation(s) in RCA: 61] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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14
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Effects of anisotropy and regime of diffusion on the measurement of lattice diffusion coefficient of hydrogen in metals. Proc Math Phys Eng Sci 2018. [DOI: 10.1098/rspa.2017.0677] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
The lattice diffusion coefficient of hydrogen in metals is commonly measured by permeation tests. Such tests assume isotropic diffusivity with a set-up which measures permeation flux only along one direction. The measured values of the lattice diffusion coefficient are strongly influenced by the trapping of hydrogen at microstructural defects. These factors lead to highly inaccurate determination of the lattice diffusion coefficient, more so in an anisotropic medium. In this work, we present a three-dimensional (3D) diffusion equation in non-dimensional form for an anisotropic medium with source and sink terms which account for detrapping and trapping of hydrogen. The concentration of hydrogen at lattice and trap sites is assumed to be in a local equilibrium. An initial boundary value problem of the permeation test is formulated and the governing partial differential equation is implemented in a 3D finite-element code. The influence of anisotropic diffusivity on the measurement of lattice diffusion coefficient is shown by numerical simulations. Asymptotic analysis of the governing equation reveals that the lattice diffusion coefficient can only be measured in certain regimes when performing permeation tests at varying temperatures. The nonlinear behaviour of Arrhenius plots of diffusion coefficient versus inverse of temperature due to trapping is analytically and numerically predicted.
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Abstract
Aim The North Milan Group presents the results of a phase II study on a cisplatin-vinorelbine combination schedule in the treatment of locally advanced non-small cell lung cancer to evaluate its activity and tolerability. Methods Seventy-six consecutive patients entered the study. Patients’ characteristics were the following: males/females 69/7; median age, 61.4 years (range, 40-73); ECOG performance status, 0-1; 17 stage IIIa and 59 stage IIIb. There were 49 squamous cell carcinomas, 20 adenocarcinomas, and 7 large cell carcinomas. All patients had not been previously treated and showed measurable disease. Treatment consisted of vinorelbine, 25 mg/m2 on days 1 and 8, plus cisplatin, 80 mg/m2 on day 1, administered intravenously every 21 days for three standard courses. Results Seventy-four patients were evaluable for response. Objective responses were documented in 42/74 patients with an overall response rate (CR+PR) of 56.7%; 18/74 patients (24.3%) showed stable disease and the remaining 14/74 (18.9%) went into progression. Twelve patients (16.2%) were suitable for a subsequent surgery. The median duration of response was 13.3 months. Survival time ranged from 4 to 36 months: it was 14.6 months for PR patients, 8.6 months for NC and 5 months for PD. Mean survival time is presently 12.85 months (SE, 1.2 months). Toxicity evaluated on 222 cycles administered was acceptable, and it was necessary to use G-CSF or delay the treatment because of severe leukopenia in only a few cases. Conclusions The regimen is active and safe: the slight survival increase is likely due to the small amenability to surgery achieved (16.2%). However, our results are fully comparable to others obtained with vinorelbine in two/three drug combination chemotherapy regimens.
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Abstract
The authors report two cases of patients with advanced gastroenteric carcinoma, which developed different cardiotoxicity patterns after the administration of cytotoxic drugs. The firsts patient showed a picture of dilatative cardiomyopathy with associated symptoms of angina pectoris and congestive heart failure; the second patient presented a cardiac arrhythmia after several administrations of S-fluorouracil. The possible mechanisms of these toxic effects, as well as the drug interactions are briefly discussed. Cardiotoxicity of cytotoxic drugs should be considered by oncologists even in patients with no previous history of cardiac disease.
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Synthesis and biological evaluation of novel bavachinin analogs as anticancer agents. Eur J Med Chem 2018; 145:511-523. [PMID: 29335212 DOI: 10.1016/j.ejmech.2018.01.006] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2017] [Revised: 12/10/2017] [Accepted: 01/03/2018] [Indexed: 12/21/2022]
Abstract
A library of 28 analogs of bavachinin including aliphatic and aromatic ethers, epoxide, chalcone, oxime, semicarbazide, oxime ether and triazole derivatives have been synthesized and evaluated for cytotoxicity against four different human cancer cell lines. Bio-evaluation studies exhibited better cytotoxic profile for many analogs compare to bavachinin. Best results were observed for a 1,2,3-triazole analog (17i) with IC50 values 7.72, 16.08, 7.13 and 11.67 μM against lung (A549), prostate (PC-3), colon (HCT-116) and breast (MCF-7) cancer cell lines respectively. This analog showed three and four fold improvement in cytotoxicity against HCT-116 and A549 cell lines than parent molecule (1). Structure activity relationship (SAR) study for all synthesized analogs was carried out. Further, mechanistic study of the lead molecule (17i) revealed that it inhibits colony formation and in vitro migration of human colon cancer cells (HCT-116). Also, it induced the morphological changes and mediated the apoptotic cell death of HCT-116 cells with perturbance in mitochondrial membrane potential (MMP) and PARP cleavage.
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Analysis of electro-permeation of hydrogen in metallic alloys. PHILOSOPHICAL TRANSACTIONS. SERIES A, MATHEMATICAL, PHYSICAL, AND ENGINEERING SCIENCES 2017; 375:20160409. [PMID: 28607188 PMCID: PMC5468726 DOI: 10.1098/rsta.2016.0409] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 01/06/2017] [Indexed: 06/07/2023]
Abstract
A reaction-diffusion type modelling framework is presented to analyse both electro-permeation (EP) and thermal desorption spectrometry (TDS) measurements of hydrogen in metallic alloys. It is assumed that the kinetics of hydrogen motion is governed by diffusion through the lattice, along with trapping/detrapping at specific sites such as dislocations, grain boundaries, etc. It is shown that the trapping and detrapping rates are typically much faster than the diffusion rate, and consequently a simplification of the governing equations suffices such that local equilibrium exists between lattice and trapped hydrogen. Using this local equilibrium assumption, we then present an asymptotic analysis of the governing kinetic equation for the EP test. This asymptotic analysis reveals that four regimes of behaviour exist, ranging from negligible trapping to the complete filling of deep traps. The analysis suggests that EP tests should be so-arranged that three regimes of behaviour are spanned, in order to extract the relevant material properties associated with hydrogen transport. The numerical solutions presented in this study support the asymptotic analysis. The hydrogen kinetics framework is also deployed to analyse both EP and TDS tests on the same martensitic steel. The EP measurements all lie in regime I and are thus insufficient to uniquely determine both the trap density and binding energy. Reasonable agreement is obtained between measurements and numerical predictions of TDS tests using parameters estimated from the EP tests. Further improvements in measurements are required to confirm the fidelity of this modelling approach.This article is part of the themed issue 'The challenges of hydrogen and metals'.
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Synthesis of Novel Mannich Derivatives of Bakuchiol as Apoptotic Inducer through Caspase Activation and PARP-1 Cleavage in A549 Cells. ChemistrySelect 2017. [DOI: 10.1002/slct.201700504] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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20
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Safety of Outpatient Transition from Intravenous Treprostinil to an Oral Prostacyclin Analog Using Remote Wireless Hemodynamic Monitoring. J Heart Lung Transplant 2017. [DOI: 10.1016/j.healun.2017.01.199] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
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21
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Right Ventricular Dysfunction Is the Strongest Determinant of Abnormal Left Ventricular Ejection Fraction in Pulmonary Arterial Hypertension. J Heart Lung Transplant 2017. [DOI: 10.1016/j.healun.2017.01.1018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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22
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Effects of Ambulatory Inhaled Nitric Oxide on Exercise Induced Increases in Pulmonary Pressures. J Heart Lung Transplant 2017. [DOI: 10.1016/j.healun.2017.01.1027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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Comprehensive genomic profiling reveals recurrent XPO1 mutations and other alterations in archival samples of patients with Hodgkin lymphoma. Eur J Cancer 2016. [DOI: 10.1016/s0959-8049(16)32705-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Biologically active xanthones from Codonopsis ovata. PHYTOCHEMISTRY 2016; 132:102-108. [PMID: 27745695 DOI: 10.1016/j.phytochem.2016.10.002] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2016] [Revised: 09/30/2016] [Accepted: 10/01/2016] [Indexed: 06/06/2023]
Abstract
Five new xanthones, named coxanthones A-E (1-5), together with 21 known secondary metabolites (6-26) that include seven xanthones, five flavonoids, two steroids and seven triterpenoids were isolated from the chemically unexplored whole plant Codonopsis ovata. The structures of new metabolites were elucidated by HRMS, interpretation of NMR spectra and other spectroscopic techniques. The absolute configuration of the stereogenic centre of coxanthone B (2) was determined by electronic circular dichroism (ECD) spectroscopy. This is the first report of xanthones from the genus Codonopsis. All isolated metabolites were evaluated for cytotoxic activity by SRB assay against six human cancer cell lines A549 (lung), PC-3 (prostate), HCT-116 (colon), MCF-7 (breast), SF-295 (CNS), and MDAMB-435 (melanoma). Among the new compounds, coxanthone B (2) exhibited significant inhibitory activity against SF-295 and MDAMB-435 with IC50 values of 7.0 and 15.0 μM, respectively. Coxanthone A (1) displayed cytotoxicity against A549 cell line at IC50 value of 22.5 μM. Cytotoxic activity of 1-hydroxy-3,5-dimethoxyxanthone (7), swertiperenine (9) and 1,7,8-trihydroxy-3-methoxyxanthone (10) are reported here first time that exhibited the IC50 values of 3.0, 5.0 and 21.0 μM against A549, MDAMB-435, and A549 cell lines, respectively. Kaempferol (13) showed most potent cytotoxic activity with an IC50 values in the 1.0-2.3 μM range against all tested cancer cell lines.
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Change in PH Therapy from PDE5i to Riociguat Is Associated with Significant Incremental Increase in Cardiac Index, Decrease in Pulmonary Vascular Resistance and Mean Arterial Pressure. J Heart Lung Transplant 2016. [DOI: 10.1016/j.healun.2016.01.1039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
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26
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Synthesis and anti-proliferative evaluation of novel 3,4-dihydro-2H-1,3-oxazine derivatives of bakuchiol. RSC Adv 2016. [DOI: 10.1039/c6ra23757f] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Abstract
Anti-proliferation study of new bakuchiol analogs revealed the anti-pancreatic potential of aliphatic oxazine derivatives of bakuchiol that activate caspase-9 and -3 and cleave PARP-1.
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Objective measurement of erythema in psoriasis using digital color photography with color calibration. Skin Res Technol 2015; 22:375-80. [PMID: 26517973 DOI: 10.1111/srt.12276] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/17/2015] [Indexed: 12/28/2022]
Abstract
BACKGROUND Traditional metrics for evaluating the severity of psoriasis are subjective, which complicates efforts to measure effective treatments in clinical trials. METHODS We collected images of psoriasis plaques and calibrated the coloration of the images according to an included color card. Features were extracted from the images and used to train a linear discriminant analysis classifier with cross-validation to automatically classify the degree of erythema. The results were tested against numerical scores obtained by a panel of dermatologists using a standard rating system. RESULTS Quantitative measures of erythema based on the digital color images showed good agreement with subjective assessment of erythema severity (κ = 0.4203). The color calibration process improved the agreement from κ = 0.2364 to κ = 0.4203. CONCLUSION We propose a method for the objective measurement of the psoriasis severity parameter of erythema and show that the calibration process improved the results.
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Abstract
CONTEXT In patients with obesity, intramuscular injections may be deposited subcutaneously due to an increase in gluteal fat. We aimed to use abdominal CT done in our institute for gluteal fat thickness to test our hypothesis. MATERIALS AND METHODS After IRB approval, CT scans of the abdomen and pelvis of the past 6 months were analyzed. The thickness of gluteal region subcutaneous fat was measured in a standardized manner. RESULTS Out of 700 CT scans, studied, 476 were males and 224 were females. The average gluteal fat thickness was 2.34 cm +/- 1 cm. The average fat thickness in males was 1.98 cm +/- 0.98 cm whereas in females was 3.0 cm +/- 1.2 cm. Subcutaneous granulomas were seen in 17 cases and one injection granuloma in the intramuscular plane. CONCLUSION A significant number of female patients had increased gluteal fat thickness beyond the reach of routinely used needles. The medications in these patients will thus be unintentionally injected to subcutaneous plane, possibly altering the pharmacokinetics.
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A phase-field model for fracture in biological tissues. Biomech Model Mechanobiol 2015; 15:479-96. [DOI: 10.1007/s10237-015-0702-0] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2015] [Accepted: 07/01/2015] [Indexed: 10/23/2022]
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30
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Residual Mitral Regurgitation After Continuous Flow Left Ventricular Assist Device Implantation Impacts Right Ventricular Geometry and Function. J Heart Lung Transplant 2015. [DOI: 10.1016/j.healun.2015.01.533] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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31
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Serum Markers of Vascular Angiogenesis and Inflammation Are Predictive of Functional Capacity and Invasive Hemodynamics in Patients with Pulmonary Arterial Hypertension. J Heart Lung Transplant 2014. [DOI: 10.1016/j.healun.2014.01.839] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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32
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Markers of Lower Pump Flow Are Risk Factors for Pump Thrombosis with the Heartmate II Left Ventricular Assist Device. J Heart Lung Transplant 2014. [DOI: 10.1016/j.healun.2014.01.631] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
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Use of a Wireless Implantable Hemodynamic Monitor Leads to Reductions in Heart Failure Hospitalizations Among WHO Group II Pulmonary Hypertension Patients. J Heart Lung Transplant 2014. [DOI: 10.1016/j.healun.2014.01.282] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
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34
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Can Late Gadolinium Enhancement Predict Adverse Clinical Events in Pulmonary Arterial Hypertension? J Heart Lung Transplant 2013. [DOI: 10.1016/j.healun.2013.01.1035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
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35
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Right Ventricular Outflow Tract Velocity Time Integral Is the Strongest Echo-Doppler Predictor of Right Ventricular Fibrosis in Patients with Pulmonary Arterial Hypertension. J Heart Lung Transplant 2013. [DOI: 10.1016/j.healun.2013.01.1034] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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36
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Adjusting N-Terminal Pro-Brain Type Natriuretic Peptide Levels for Ventricular Mass Improves Prediction of Right Atrial Pressure and Cardiac Index in Patients with Pulmonary Arterial Hypertension. J Heart Lung Transplant 2013. [DOI: 10.1016/j.healun.2013.01.652] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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37
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Evaluation of End Stage Heart Failure Patients on Inotropic Therapy in the Defibrillator Era. J Heart Lung Transplant 2013. [DOI: 10.1016/j.healun.2013.01.379] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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Regulatory role of miR-2909 in cell-mediated immune response. Cell Biochem Funct 2012; 30:500-4. [PMID: 22504889 DOI: 10.1002/cbf.2828] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2011] [Revised: 02/26/2012] [Accepted: 03/14/2012] [Indexed: 11/06/2022]
Abstract
Keeping in view the micromanagement of immune response by micro RNAs, the present study was directed to explore the role of miR-2909 in the differentiation and maturation of T-lymphocytes within the population of normal human peripheral blood mononuclear cells maintained in in vitro culture. The results of such a study revealed that miR-2909 had the inherent capacity to significantly increase Treg (CD4+CD25+Foxp3+) cell population and dominant Th1-type cytokine (especially with decrease in IL-4 level and higher levels of INF-β and INF-γ) profile. Based upon these results, we propose that miR-2909 may modulate native immunity in general and help in providing protective immunity against viral infections in particular.
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794 Application of Destination Therapy Risk Score (DTRS) in Recipients of Continuous Flow LVADs. J Heart Lung Transplant 2012. [DOI: 10.1016/j.healun.2012.01.811] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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572 Preoperative Risk Factors for Postoperative Infection after Left Ventricular Assist Device Implantation. J Heart Lung Transplant 2012. [DOI: 10.1016/j.healun.2012.01.585] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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Infraorbital ethmoid (Haller's) cells: a panoramic radiographic study. Dentomaxillofac Radiol 2012; 41:305-8. [PMID: 22241882 DOI: 10.1259/dmfr/22999207] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
OBJECTIVE Haller's cells or infraorbital ethmoid cells refer to the ethmoidal pneumatization of the superior aspect of the maxillary sinus and floor of the orbit. The clinical importance of these entities initiated this study with an aim to determine the prevalence and characteristics of Haller's cells on panoramic radiographs. METHODS The study group comprised 600 healthy adults of both genders with an age range of 18-60 years. One panoramic radiograph for each of the patients was made and interpreted for the presence of Haller's cells. The data collected were subjected to statistical analysis: frequencies/percentages, descriptive statistics, χ(2) test and cross-tabulation (contingency table analysis) to obtain the results. RESULTS Haller's cells were noted in 96 patients, accounting for a prevalence of 16%. Of these patients, 77.1% were unilateral while 22.9% were bilateral. Among 96 cases, a total of 204 cells were found. The majority of the cells were round or ovoid in shape. The unilocular type of Haller's cells occurring unilaterally was statistically significant. CONCLUSION This study has attempted to explore the characteristics of Haller's cells on panoramic radiographs. A description of Haller's cells on these radiographs may prove vital in enumerating the differential diagnosis for patients afflicted with intractable orofacial pain and reduce the risk of untoward intraoperative complications during endonasal procedures.
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The impact of mitral regurgitation on patients undergoing catheter ablation of atrial fibrillation. Europace 2011; 13:1127-32. [DOI: 10.1093/europace/eur098] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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POLYAMINES, RNA SYNTHESIS, AND STREPTOMYCIN LETHALITY IN A RELAXED MUTANT OF E. coli STRAIN 15 TAU. Proc Natl Acad Sci U S A 2010; 57:721-8. [PMID: 16591523 PMCID: PMC335568 DOI: 10.1073/pnas.57.3.721] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
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Genetic diversity amongst the Saraswat Brahmin community of Jammu and Kashmir (India). N Biotechnol 2010. [DOI: 10.1016/j.nbt.2010.01.033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Annular vesiculobullous eruptions in type 2 reaction in borderline lepromatous leprosy: a case report. INDIAN JOURNAL OF LEPROSY 2009; 81:205-208. [PMID: 20704077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
An untreated case of BL presented with clinical features of type 2 reaction (T2R) confirmed by histopathology. The case was a 18-year-old female with borderline lepromatous leprosy who developed annular vesiculobullous eruptions oversome of the pre-existing plaques on arms and upper back along with fever and severe neuritis after a short course of ofloxacin intake prescribed for urinary tract infection. In addition to the above lesions, some of the existing lesions showed acute exacerbation characterized by erythema, oedema, tenderness and vesiculobullous eruption. This can be considered as an example of leprous exacerbation as described in older literature. T2Rs are common in lepromatous leprosy and not so uncommonly are observed in borderline lepromatous leprosy. The vesiculobullous and crusted lesions developing over the existing borderline plaques, some of them presenting in an annular pattern in T2R in the form of leprous exacerbation, have been reported rarely in the literature.
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MESH Headings
- Adolescent
- Clofazimine/administration & dosage
- Dose-Response Relationship, Drug
- Drug Therapy, Combination
- Erythema Nodosum/drug therapy
- Erythema Nodosum/pathology
- Female
- Glucocorticoids/administration & dosage
- Humans
- Leprostatic Agents/administration & dosage
- Leprosy, Borderline/complications
- Leprosy, Borderline/drug therapy
- Leprosy, Borderline/pathology
- Leprosy, Lepromatous/drug therapy
- Leprosy, Lepromatous/pathology
- Prednisolone/administration & dosage
- Recurrence
- Skin/pathology
- Skin Diseases, Vesiculobullous/complications
- Skin Diseases, Vesiculobullous/drug therapy
- Skin Diseases, Vesiculobullous/pathology
- Treatment Outcome
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Serology in autoimmune pancreatitis. MINERVA GASTROENTERO 2008; 54:375-387. [PMID: 19047979] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Autoimmune pancreatitis (AIP) is the pancreatic manifestation of a systemic immune-driven, inflammatory process that can involve organs such as the bile duct, salivary glands and lymph nodes, in addition to the pancreas. Many of the presenting signs and symptoms of AIP, including painless jaundice, weight loss and mild epigastric pain, are characteristic of pancreatic adenocarcinoma; thus, obtaining an accurate diagnosis to avoid unnecessary surgery is imperative. AIP responds very well to steroid treatment, although it may recur in up to 20% to 40% of cases. The diagnostic criteria for AIP are histological, radiographic, clinical and laboratory-based in nature. Although no international consensus on diagnostic criteria has yet been made, some of the diagnostic features of AIP include elevated gamma globulin, immunoglobulin, and, in particular, immunoglobulin G4 fraction (IgG4). The search for a distinct serological marker of AIP has included antibodies to a wide range of antigenic stimuli. To date, there have been studies of AIP and antibodies to lactoferrin, carbonic anhydrase isoforms II and IV, pancreatic secretory trypsin inhibitor (PSTI or SPINK) as well as to less sensitive or specific markers of autoimmunity, such as antinuclear antibody and rheumatoid factor. Although there are some preliminary strengths of association with PSTI antibodies, none of these biomarkers appears to be sensitive or specific enough to serve as distinctive evidence of AIP. At the current time, elevations of IgG4 to greater than 280 mg/dL remain the most reliable and reproducible indicator that a patient has AIP.
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Late postpartum eclampsia at five weeks post-delivery. Singapore Med J 2007; 48:946-7. [PMID: 17909682] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
Postpartum eclampsia is a serious and unexpected complication. A relative increase in the incidence of postpartum eclampsia has been noted in the last few years. Late postpartum eclampsia, though initially controversial, is now recognised up to four weeks after delivery. We present such a case occurring in a 26-year-old woman. This patient, who had undergone lower segment caesarean section due to pregnancy-induced hypertension, presented with typical features of postpartum eclampsia 34 days after an asymptomatic interval.
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The Misgav Ladach method: a step forward in the operative technique of caesarean section. Kathmandu Univ Med J (KUMJ) 2006; 4:198-202. [PMID: 18603898] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
INTRODUCTION Caesarean delivery remains the most common intraperitoneal surgical procedure in obstetric and gynaecologic practice. Since time immemorial there have been countless efforts to improve the technique of caesarean section. One such innovative breakthrough technique is the Misgav Ladach method of caesarean of section. The objective of this trial was to compare the intraoperative and short-term postoperative outcomes between the conventional and the Misgav-Ladach technique for caesarean section. MATERIALS AND METHOD The randomized prospective comparative study was carried out in the department of Obstetrics and Gynaecology, B.P Koirala Institute of Health Sciences, Dharan Nepal. Four hundred patients were randomized to either Misgav Ladach or the Conventional method of caesarean section. Only term pregnancies with singleton foetuses' were included whereas pregnancies with previous caesarean section were excluded from the study. The study period was from September 2001 to September 2004. RESULT There was not much difference in the demographic variables between the two groups. The age of the patients ranged between 18-40 years. The mean age of patients in Misgav Ladach and conventional group was 24.5 and 23.6 years respectively. Foetal distress was the commonest indication for caesarean section followed by non progress of labour. The mean incision to delivery interval, operating time and blood loss in the Misgav Ladach group was 1 minute 30 seconds, 16 minutes and 35 0ml as compared to 3 minutes, 28 minutes and 600 ml in the conventional group respectively. 3.5%of patients in the Misgav Ladach group showed febrile morbidity as compared to 7% in the conventional group. 19% from conventional group and only 4%from Misgav Ladach group required added analgesia. Almost equal number of patients (10-12) in each group experienced significant headache.).0.1%in the Misgav group and 5% in the Conventional group required post operative blood transfusion. Four patients from the conventional group had their wound gaped. The number of neonates requiring intensive care was sixteen (8% ) in the conventional group and 3 (1.5%) in the Misgav group.6.5% from conventional group and 2% from Misgav Ladach group required maternal intensive care admissions. CONCLUSION Misgav-Ladach technique has been be associated with shorter operative time, quicker recovery, and lesser need for postoperative medications, when compared with traditional caesarean section. It has also been shown to be more cost-effective. A further advantage of the technique may be the shorter time taken for the delivery of the child.
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An unusual presentation of huge cervical fibroid. Kathmandu Univ Med J (KUMJ) 2005; 3:173-4. [PMID: 16415616] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
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