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result(s) for
"Jamal, Waheed"
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SGLT2 inhibitors in patients with heart failure with reduced ejection fraction: a meta-analysis of the EMPEROR-Reduced and DAPA-HF trials
2020
Both DAPA-HF (assessing dapagliflozin) and EMPEROR-Reduced (assessing empagliflozin) trials showed that sodium-glucose co-transporter-2 (SGLT2) inhibition reduced the combined risk of cardiovascular death or hospitalisation for heart failure in patients with heart failure with reduced ejection fraction (HFrEF) with or without diabetes. However, neither trial was powered to assess effects on cardiovascular death or all-cause death or to characterise effects in clinically important subgroups. Using study-level published data from DAPA-HF and patient-level data from EMPEROR-Reduced, we aimed to estimate the effect of SGLT2 inhibition on fatal and non-fatal heart failure events and renal outcomes in all randomly assigned patients with HFrEF and in relevant subgroups from DAPA-HF and EMPEROR-Reduced trials.
We did a prespecified meta-analysis of the two single large-scale trials assessing the effects of SGLT2 inhibitors on cardiovascular outcomes in patients with HFrEF with or without diabetes: DAPA-HF (assessing dapagliflozin) and EMPEROR-Reduced (assessing empagliflozin). The primary endpoint was time to all-cause death. Additionally, we assessed the effects of treatment in prespecified subgroups on the combined risk of cardiovascular death or hospitalisation for heart failure. These subgroups were based on type 2 diabetes status, age, sex, angiotensin receptor neprilysin inhibitor (ARNI) treatment, New York Heart Association (NYHA) functional class, race, history of hospitalisation for heart failure, estimated glomerular filtration rate (eGFR), body-mass index, and region (post-hoc). We used hazard ratios (HRs) derived from Cox proportional hazard models for time-to-first event endpoints and Cochran's Q test for treatment interactions; the analysis of recurrent events was based on rate ratios derived from the Lin-Wei-Yang-Ying model.
Among 8474 patients combined from both trials, the estimated treatment effect was a 13% reduction in all-cause death (pooled HR 0·87, 95% CI 0·77–0·98; p=0·018) and 14% reduction in cardiovascular death (0·86, 0·76–0·98; p=0·027). SGLT2 inhibition was accompanied by a 26% relative reduction in the combined risk of cardiovascular death or first hospitalisation for heart failure (0·74, 0·68–0·82; p<0·0001), and by a 25% decrease in the composite of recurrent hospitalisations for heart failure or cardiovascular death (0·75, 0·68–0·84; p<0·0001). The risk of the composite renal endpoint was also reduced (0·62, 0·43–0·90; p=0·013). All tests for heterogeneity of effect size between trials were not significant. The pooled treatment effects showed consistent benefits for subgroups based on age, sex, diabetes, treatment with an ARNI and baseline eGFR, but suggested treatment-by-subgroup interactions for subgroups based on NYHA functional class and race.
The effects of empagliflozin and dapagliflozin on hospitalisations for heart failure were consistent in the two independent trials and suggest that these agents also improve renal outcomes and reduce all-cause and cardiovascular death in patients with HFrEF.
Boehringer Ingelheim.
Journal Article
Empagliflozin and Major Renal Outcomes in Heart Failure
by
Wanner, Christoph
,
Jamal, Waheed
,
Zeller, Cordula
in
Cardiology
,
Cardiology and cardiovascular system
,
Cardiology General
2021
In a planned pooled analysis of two trials that evaluated empagliflozin in patients with heart failure, major adverse renal outcomes occurred in 2.8% of the patients who received empagliflozin and in 3.5% of those who received placebo. Results differed between the two trials.
Journal Article
International longitudinal registry of patients with atrial fibrillation at risk of stroke: Global Anticoagulant Registry in the FIELD (GARFIELD)
by
Mantovani, Lorenzo G.
,
Jamal, Waheed
,
Verheugt, Freek W.A.
in
Anticoagulants
,
Anticoagulants - administration & dosage
,
Atrial Fibrillation - complications
2012
Atrial fibrillation (AF) is associated with high rates of morbidity and mortality. Patients with AF carry a fivefold increased risk of stroke and the risk of death from AF-related stroke is doubled. Current management is often inadequate, leaving patients at risk for a potentially fatal or disabling event. The purpose of the GARFIELD registry is to evaluate the management and outcomes of patients with newly diagnosed non-valvular AF at risk for stroke.
The GARFIELD registry is an observational, multicenter, prospective study of patients with newly diagnosed AF and one or more additional risk factors for stroke. The aim is to enroll 55,000 patients at >1,000 centers in 50 countries. Enrollment will take place in five independent, sequential, prospective cohorts. An additional retrospective validation cohort of 5,000 patients with established AF and at least one additional risk factor for stroke will be conducted in parallel with cohort one. The study started in December 2009, with a planned recruitment period of 4 years and a minimum of 2-year follow-up for each patient.
The GARFIELD registry will provide valuable insights into the clinical management and related outcomes of AF patients throughout many regions of the world and across the spectrum of healthcare systems. By capturing data from unselected patients treated in everyday practice, the registry has the potential to identify best practices as well as deficiencies in available treatment options for specific patient populations and to describe how therapeutic strategies, patient care, and outcomes will evolve over time.
Journal Article
Empagliflozin in Heart Failure with a Preserved Ejection Fraction
by
Piña, Ileana L
,
Gonzalez-Juanatey, Jose R
,
Zhang, Jian
in
Adult
,
Antidiabetics
,
Benzhydryl Compounds - administration & dosage
2021
In a randomized trial, 5988 patients with heart failure with preserved ejection fraction were assigned to receive either empagliflozin or placebo in addition to usual therapy. At a median of 26 months, the empagliflozin group had a lower incidence of cardiovascular death or hospitalization for heart failure than the placebo group.
Journal Article
Empagliflozin after Acute Myocardial Infarction
by
Figtree, Gemma
,
Simic, Dragan
,
Rossello, Xavier
in
Aged
,
Antidiabetics
,
Benzhydryl Compounds - adverse effects
2024
Among patients hospitalized for acute myocardial infarction and at risk for heart failure, empagliflozin did not lead to a significantly lower risk of a first heart-failure hospitalization or death from any cause than placebo.
Journal Article
Rationale and design of XAMOS: noninterventional study of rivaroxaban for prophylaxis of venous thromboembolism after major hip and knee surgery
by
Jamal
,
Mantovani
,
Schmidt
in
Anticoagulants
,
Anticoagulants - administration & dosage
,
Anticoagulants - adverse effects
2012
Venous thromboembolism is a frequent and potentially life-threatening complication of orthopedic surgery. Rivaroxaban is an oral direct factor Xa inhibitor, which was shown to be effective for the prevention of venous thromboembolism after elective hip and knee arthroplasty in the RECORD study program. Rivaroxaban has the potential to overcome the limitations of the current standards of care in the prevention of venous thromboembolism. XAMOS (Xarelto(®) in the prophylaxis of post-surgical venous thromboembolism after elective major orthopedic surgery of hip or knee) is an international, noninterventional, parallel-group study to gain insight into the safety (major bleeding, side effects) and effectiveness (prevention of symptomatic thromboembolic events) of rivaroxaban in daily clinical practice. XAMOS will follow 15,000 patients after major orthopedic surgery in approximately 200 centers worldwide, with about 7500 patients receiving rivaroxaban and about 7500 standard of care. XAMOS will supplement the clinical data obtained in the Phase III RECORD 1, 2, 3, and 4 trials in which rivaroxaban was shown to be superior for the primary efficacy endpoints, and with a safety profile similar to that of enoxaparin after hip or knee replacement surgery. XAMOS was started in 2009 and will complete recruitment and follow-up in 2011.
Journal Article
Synthesis, characterization and heavy metal removal efficiency of nickel ferrite nanoparticles (NFN’s)
2021
The heavy metals, such as Cr(VI), Pb(II) and Cd(II), in aqueous solutions are toxic even at trace levels and have caused adverse health impacts on human beings. Hence the removal of these heavy metals from the aqueous environment is important to protect biodiversity, hydrosphere ecosystems, and human beings. In this study, magnetic Nickel-Ferrite Nanoparticles (NFNs) were synthesized by co-precipitation method and characterized using X-Ray Diffraction (XRD), Energy Dispersive Spectroscopy (EDS) and Field Emission Scanning Electronic Microscopy (FE-SEM) techniques in order to confirm the crystalline structure, composition and morphology of the NFN’s, these were then used as adsorbent for the removal of Cr(VI), Pb(II) and Cd(II) from wastewater. The adsorption parameters under study were pH, dose and contact time. The values for optimum removal through batch-adsorption were investigated at different parameters (pH 3–7, dose: 10, 20, 30, 40 and 50 mg and contact time: 30, 60, 90, and 120 min). Removal efficiencies of Cr(VI), Pb(II) and Cd(II) were obtained 89%, 79% and 87% respectively under optimal conditions. It was found that the kinetics followed the pseudo second order model for the removal of heavy metals using Nickel ferrite nanoparticles.
Journal Article
Characterization of Carbapenem-Resistant Enterobacteriaceae with High Rate of Autochthonous Transmission in the Arabian Peninsula
by
Al-Jardani, Amina
,
Hashmey, Rayhan
,
Tariq, Waheed U. Z.
in
Antibiotics
,
Antimicrobial agents
,
Bacterial Proteins - genetics
2015
To establish the role of local transmission versus possible pathogen import due to previous foreign exposure in infections caused by carbapenem non-susceptible Enterobacteriaceae in the Arabian Peninsula, 200 independent isolates collected in 16 hospitals of Saudi Arabia, Kuwait, Oman and the United Arab Emirates were studied. All strains were multidrug resistant; 42.5% of them also qualified as extremely drug resistant. The frequency of various carbapenemases varied according to the participating countries, but in the collection, as a whole, blaNDM-1 was the most frequently encountered carbapenemase gene (46.5%) followed by blaOXA-48-like gene (32.5%). A comparatively high rate (8.9%) of multi-clonal strains carrying both blaNDM and blaOXA-48-like genes in the United Arab Emirates, representing the most resistant subgroup, was encountered. No KPC-expressing isolates were detected. Three major clones of blaNDM-1 carrying Klebsiella pneumoniae of ST152 (n = 22, Saudi Arabia), ST14 (n = 7, United Arab Emirates) and ST147 types (n = 9, Oman) were identified, the latter two clones carrying similar, but not identical HI1b incompatibility type plasmids of >170 kb. While from 78.6% of the cases with documented foreign hospitalization blaNDM positive strains were isolated, these strains formed only 25.6% of all the isolates expressing this enzyme. In fact, 56.8% of the NDM, 75.7% of OXA-48-like and 90.9% of VIM positive strains were recovered from patients without documented foreign exposure, neither in the form of travel or prior hospitalization abroad, suggesting a high rate of autochthonous infections. This, considering the extensive links of these countries to the rest of the world, predicts that trends in the local epidemiology of carbapenem resistant strains may increasingly affect the spread of these pathogens on the global scale. These results call for improved surveillance of carbapenem resistant Enterobacteriaceae in the countries of the Arabian Peninsula.
Journal Article
Effect of a low cost diet on the cotton leaf worm, Spodoptera littoralis nucleopolyhedrosis virus pathogenicity and sterile insect technique
by
Sayed, Waheed A. A.
,
El-Bendary, Helmy
,
El-Helaly, Alexandra
in
Agar
,
Baculovirus
,
Baculovirus infectivity
2021
Background
Mass rearing cost of
Spodoptera littoralis
(Boisd.) (Lepidoptera: Noctuidae) is one of the critical methods for the successful utilization of Baculovirus pathogenicity and sterile insect technique (SIT). Effectiveness of both SIT and
S. littoralis
Nucleopolyhedrosis Virus (
Spli
NPV) was assessed in response to plant-based diet and substitution of agar with commercial sources of gelling components as feed.
Results
Pupal and adult recoveries produced by castor bean leaves were significantly high, followed by the agar-based diet. Moreover, larval durations were significantly prolonged for (starch + gelatin)-based diet than the other dietary diets. Obviously,
Spli
NPV pathogenicity against the larvae reared on (starch + gelatin)-based diet was 2.5 and 2 times higher than those reared on castor leaves and agar-based diet, respectively. Contrary to expectation, the sterility doses of male moths produced by castor leaves and agar-based diet were relatively similar.
Conclusion
The findings suggest that the lowest cost diets (starch + gelatin)-based diet could be used effectively for increasing the
Spli
NPV pathogenicity, while either castor leaves or agar-based diet could be considered as a promising choice for SIT program.
Journal Article
GC-MS Analysis and Biomedical Therapy of Oil from n-Hexane Fraction of Scutellaria edelbergii Rech. f.: In Vitro, In Vivo, and In Silico Approach
by
Al-Harrasi, Ahmed
,
Ullah, Saeed
,
Al-Sabahi, Jamal Nasser
in
alpha-Glucosidases - metabolism
,
analgesic assay
,
Analgesics
2021
The current study aimed to explore the crude oils obtained from the n-hexane fraction of Scutellaria edelbergii and further analyzed, for the first time, for their chemical composition, in vitro antibacterial, antifungal, antioxidant, antidiabetic, and in vivo anti-inflammatory, and analgesic activities. For the phytochemical composition, the oils proceeded to gas chromatography-mass spectrometry (GC-MS) analysis and from the resultant chromatogram, 42 bioactive constituents were identified. Among them, the major components were linoleic acid ethyl ester (19.67%) followed by ethyl oleate (18.45%), linolenic acid methyl ester (11.67%), and palmitic acid ethyl ester (11.01%). Tetrazolium 96-well plate MTT assay and agar-well diffusion methods were used to evaluate the isolated oil for its minimum inhibitory concentrations (MIC), minimum bactericidal concentration (MBC), half-maximal inhibitory concentrations (IC50), and zone of inhibitions that could determine the potential antimicrobial efficacy’s. Substantial antibacterial activities were observed against the clinical isolates comprising of three Gram-negative bacteria, viz., Escherichia coli, Klebsiella pneumoniae, and Pseudomonas aeruginosa, and one Gram-positive bacterial strain, Enterococcus faecalis. The oils were also effective against Candida albicans and Fusarium oxysporum when evaluated for their antifungal potential. Moreover, significant antioxidant potential with IC50 values of 136.4 and 161.5 µg/mL for extracted oil was evaluated through DPPH (1,1-Diphenyl-2-picryl-hydrazyl) and ABTS assays compared with standard ascorbic acid where the IC50 values were 44.49 and 67.78 µg/mL, respectively, against the tested free radicals. The oils was also potent, inhibiting the α-glucosidase (IC50 5.45 ± 0.42 µg/mL) enzyme compared to the standard. Anti-glucosidase potential was visualized through molecular docking simulations where ten compounds of the oil were found to be the leading inhibitors of the selected enzyme based on interactions, binding energy, and binding affinity. The oil was found to be an effective anti-inflammatory (61%) agent compared with diclofenac sodium (70.92%) via the carrageenan-induced assay. An appreciable (48.28%) analgesic activity in correlation with the standard aspirin was observed through the acetic acid-induced writhing bioassay. The oil from the n-hexane fraction of S. edelbergii contained valuable bioactive constituents that can act as in vitro biological and in vivo pharmacological agents. However, further studies are needed to uncover individual responsible compounds of the observed biological potentials which would be helpful in devising novel drugs.
Journal Article