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Bahar Ahmed

Bio: Bahar Ahmed is an academic researcher from Jamia Hamdard. The author has contributed to research in topics: Transaminase & Literature survey. The author has an hindex of 26, co-authored 104 publications receiving 2128 citations. Previous affiliations of Bahar Ahmed include Banha University & Nanjing Medical University.


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TL;DR: Despite a low-risk profile and few postoperative complications, patients in Africa were twice as likely to die after surgery when compared with the global average for postoperative deaths, and Initiatives to increase access to surgical treatments in Africa should be coupled with improved surveillance for deteriorating physiology in patients who develop postoperative complication.

353 citations

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TL;DR: The histopathological study of the liver was carried out, wherein the methanolic fraction and compound AB-IV showed almost complete normalization of the tissues as neither fatty accumulation nor necrosis was observed.

137 citations

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David Bishop1, Robert A. Dyer2, Salome Maswime3, Reitze N. Rodseth1  +1058 moreInstitutions (16)
TL;DR: Maternal mortality after caesarean delivery in Africa is 50 times higher than that of high-income countries and is driven by peripartum haemorrhage and anaesthesia complications, which is double the global average.

128 citations

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TL;DR: A number of new imine derivatives of 5-amino-1, 3, 4-thiadiazole-2-thiol have been synthesized, and their anti-depressant activity was tested using imipramine as reference drug, and all the compounds in the series have passed neurotoxicity tests.

124 citations

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TL;DR: P-80-PIP-SLN has shown therapeutic effects in Alzheimer via reducing the oxidative stress and reducing the cholinergic degradation at 2 mg/kg dose equivalent.
Abstract: Background: Alzheimer is a fast growing disease with imprecise chemical treatments. Increased oxidative stress, decrease in acetylcholine concentration, and appearance of amyloidal proteins are reported in pathology of Alzheimer. Chemical drugs are effective but on the cost of detrimental side effects.Purpose: Present research is based on Preparation, characterization, behavioral and biochemical evaluation of brain targeted Piperine solid lipid nanoparticles in an experimentally induced Alzheimer’s model at a low dose of 2 mg/kg.Methods: Piperine solid lipid nanoparticles were prepared by Emulsification-Solvent Diffusion technique with polysorbate-80 coating to impart Brain specific targeting. Experimental Ibotenic acid induced Alzheimer’s, Force swimming test, superoxide dismutase, acetylcholenesterase enzymatic assays and also Histopathology of brain cortex was conducted to evaluate the Piperine therapeutic effects in Alzheimer’s Disease.Results: Piperine in solid lipid nanoformulation (2 mg/kg equivale...

114 citations


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TL;DR: This volume is keyed to high resolution electron microscopy, which is a sophisticated form of structural analysis, but really morphology in a modern guise, the physical and mechanical background of the instrument and its ancillary tools are simply and well presented.
Abstract: I read this book the same weekend that the Packers took on the Rams, and the experience of the latter event, obviously, colored my judgment. Although I abhor anything that smacks of being a handbook (like, \"How to Earn a Merit Badge in Neurosurgery\") because too many volumes in biomedical science already evince a boyscout-like approach, I must confess that parts of this volume are fast, scholarly, and significant, with certain reservations. I like parts of this well-illustrated book because Dr. Sj6strand, without so stating, develops certain subjects on technique in relation to the acquisition of judgment and sophistication. And this is important! So, given that the author (like all of us) is somewhat deficient in some areas, and biased in others, the book is still valuable if the uninitiated reader swallows it in a general fashion, realizing full well that what will be required from the reader is a modulation to fit his vision, propreception, adaptation and response, and the kind of problem he is undertaking. A major deficiency of this book is revealed by comparison of its use of physics and of chemistry to provide understanding and background for the application of high resolution electron microscopy to problems in biology. Since the volume is keyed to high resolution electron microscopy, which is a sophisticated form of structural analysis, but really morphology in a modern guise, the physical and mechanical background of The instrument and its ancillary tools are simply and well presented. The potential use of chemical or cytochemical information as it relates to biological fine structure , however, is quite deficient. I wonder when even sophisticated morphol-ogists will consider fixation a reaction and not a technique; only then will the fundamentals become self-evident and predictable and this sine qua flon will become less mystical. Staining reactions (the most inadequate chapter) ought to be something more than a technique to selectively enhance contrast of morphological elements; it ought to give the structural addresses of some of the chemical residents of cell components. Is it pertinent that auto-radiography gets singled out for more complete coverage than other significant aspects of cytochemistry by a high resolution microscopist, when it has a built-in minimal error of 1,000 A in standard practice? I don't mean to blind-side (in strict football terminology) Dr. Sj6strand's efforts for what is \"routinely used in our laboratory\"; what is done is usually well done. It's just that …

3,197 citations

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TL;DR: 2017 ESC Guidelines on the Diagnosis and Treatment of Peripheral Arterial Diseases, in collaboration with the European Society for Vascular Surgery (ESVS) as mentioned in this paper, covering atherosclerotic disease of extracranial carotid and vertebral, mesenteric, renal, upper and lower extremity arteries
Abstract: 2017 ESC Guidelines on the Diagnosis and Treatment of Peripheral Arterial Diseases, in collaboration with the European Society for Vascular Surgery (ESVS) : Document covering atherosclerotic disease of extracranial carotid and vertebral, mesenteric, renal, upper and lower extremity arteries

1,754 citations

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TL;DR: This text is a general introduction to radiation biology and a complete, self-contained course especially for residents in diagnostic radiology and nuclear medicine that follows the Syllabus in Radiation Biology of the RSNA.
Abstract: The text consists of two sections, one for those studying or practicing diagnostic radiology, nuclear medicine and radiation oncology; the other for those engaged in the study or clinical practice of radiation oncology--a new chapter, on radiologic terrorism, is specifically for those in the radiation sciences who would manage exposed individuals in the event of a terrorist event. The 17 chapters in Section I represent a general introduction to radiation biology and a complete, self-contained course especially for residents in diagnostic radiology and nuclear medicine that follows the Syllabus in Radiation Biology of the RSNA. The 11 chapters in Section II address more in-depth topics in radiation oncology, such as cancer biology, retreatment after radiotherapy, chemotherapeutic agents and hyperthermia.

1,359 citations

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TL;DR: Clinicians will find the recommendations in these revised CPGs useful in their daily work and can be reassured that the recommendations have been vetted thoroughly by the most rigorous scientific process, so that cardiovascular clinicians worldwide may deliver optimal, standardized care.
Abstract: AAA : abdominal aortic aneurysm ACEI : angiotensin converting enzyme inhibitor ACS : acute coronary syndromes AF : atrial fibrillation AKI : acute kidney injury AKIN : Acute Kidney Injury Network ARB : angiotensin receptor blocker ASA : American Society of Anesthesiologists b.i.d. : bis in diem (twice daily) BBSA : Beta-Blocker in Spinal Anesthesia BMS : bare-metal stent BNP : B-type natriuretic peptide bpm : beats per minute CABG : coronary artery bypass graft CAD : coronary artery disease CARP : Coronary Artery Revascularization Prophylaxis CAS : carotid artery stenting CASS : Coronary Artery Surgery Study CEA : carotid endarterectomy CHA2DS2-VASc : cardiac failure, hypertension, age ≥75 (doubled), diabetes, stroke (doubled)-vascular disease, age 65–74 and sex category (female) CI : confidence interval CI-AKI : contrast-induced acute kidney injury CKD : chronic kidney disease CKD-EPI : Chronic Kidney Disease Epidemiology Collaboration Cmax : maximum concentration CMR : cardiovascular magnetic resonance COPD : chronic obstructive pulmonary disease CPG : Committee for Practice Guidelines CPX/CPET : cardiopulmonary exercise test CRP : C-reactive protein CRT : cardiac resynchronization therapy CRT-D : cardiac resynchronization therapy defibrillator CT : computed tomography cTnI : cardiac troponin I cTnT : cardiac troponin T CVD : cardiovascular disease CYP3a4 : cytochrome P3a4 enzyme DAPT : dual anti-platelet therapy DECREASE : Dutch Echocardiographic Cardiac Risk Evaluation Applying Stress Echocardiography DES : drug-eluting stent DIPOM : DIabetic Post-Operative Mortality and Morbidity DSE : dobutamine stress echocardiography ECG : electrocardiography/electrocardiographically/electrocardiogram eGFR : estimated glomerular filtration rate ESA : European Society of Anaesthesiology ESC : European Society of Cardiology EVAR : endovascular abdominal aortic aneurysm repair FEV1 : Forced expiratory volume in 1 second HbA1c : glycosylated haemoglobin HF-PEF : heart failure with preserved left ventricular ejection fraction HF-REF : heart failure with reduced left ventricular ejection fraction ICD : implantable cardioverter defibrillator ICU : intensive care unit IHD : ischaemic heart disease INR : international normalized ratio IOCM : iso-osmolar contrast medium KDIGO : Kidney Disease: Improving Global Outcomes LMWH : low molecular weight heparin LOCM : low-osmolar contrast medium LV : left ventricular LVEF : left ventricular ejection fraction MaVS : Metoprolol after Vascular Surgery MDRD : Modification of Diet in Renal Disease MET : metabolic equivalent MRI : magnetic resonance imaging NHS : National Health Service NOAC : non-vitamin K oral anticoagulant NSQIP : National Surgical Quality Improvement Program NSTE-ACS : non-ST-elevation acute coronary syndromes NT-proBNP : N-terminal pro-BNP O2 : oxygen OHS : obesity hypoventilation syndrome OR : odds ratio P gp : platelet glycoprotein PAC : pulmonary artery catheter PAD : peripheral artery disease PAH : pulmonary artery hypertension PCC : prothrombin complex concentrate PCI : percutaneous coronary intervention POBBLE : Peri-Operative Beta-BLockadE POISE : Peri-Operative ISchemic Evaluation POISE-2 : Peri-Operative ISchemic Evaluation 2 q.d. : quaque die (once daily) RIFLE : Risk, Injury, Failure, Loss, End-stage renal disease SPECT : single photon emission computed tomography SVT : supraventricular tachycardia SYNTAX : Synergy between Percutaneous Coronary Intervention with TAXUS and Cardiac Surgery TAVI : transcatheter aortic valve implantation TdP : torsades de pointes TIA : transient ischaemic attack TOE : transoesophageal echocardiography TOD : transoesophageal doppler TTE : transthoracic echocardiography UFH : unfractionated heparin VATS : video-assisted thoracic surgery VHD : valvular heart disease VISION : Vascular Events In Noncardiac Surgery Patients Cohort Evaluation VKA : vitamin K antagonist VPB : ventricular premature beat VT : ventricular tachycardia Guidelines summarize and evaluate all available evidence, at the time of the writing process, on a particular issue with the aim of assisting health professionals in selecting the best management strategies for an individual patient with a given condition, taking into account the impact on outcome, as well as the risk–benefit ratio of particular diagnostic …

1,353 citations