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https://www.readbyqxmd.com/read/28105288/discovery-of-spirocyclic-aldosterone-synthase-inhibitors-as-potential-treatments-for-resistant-hypertension
#1
Whitney L Petrilli, Scott B Hoyt, Clare London, Daniel McMasters, Andreas Verras, Mary Struthers, Doris Cully, Thomas Wisniewski, Ning Ren, Charlene Bopp, Andrea Sok, Qing Chen, Ying Li, Elaine Tung, Wei Tang, Gino Salituro, Ian Knemeyer, Bindhu Karanam, Joseph Clemas, Gaochao Zhou, Jack Gibson, Carrie Ann Shipley, Douglas J MacNeil, Ruth Duffy, James R Tata, Feroze Ujjainwalla, Amjad Ali, Yusheng Xiong
Herein we report the discovery and hit-to-lead optimization of a series of spirocyclic piperidine aldosterone synthase (CYP11B2) inhibitors. Compounds from this series display potent CYP11B2 inhibition, good selectivity versus related CYP enzymes, and lead-like physical and pharmacokinetic properties.
January 12, 2017: ACS Medicinal Chemistry Letters
https://www.readbyqxmd.com/read/28103802/proteomics-informed-by-transcriptomics-for-characterising-active-transposable-elements-and-genome-annotation-in-aedes-aegypti
#2
Kevin Maringer, Amjad Yousuf, Kate J Heesom, Jun Fan, David Lee, Ana Fernandez-Sesma, Conrad Bessant, David A Matthews, Andrew D Davidson
BACKGROUND: Aedes aegypti is a vector for the (re-)emerging human pathogens dengue, chikungunya, yellow fever and Zika viruses. Almost half of the Ae. aegypti genome is comprised of transposable elements (TEs). Transposons have been linked to diverse cellular processes, including the establishment of viral persistence in insects, an essential step in the transmission of vector-borne viruses. However, up until now it has not been possible to study the overall proteome derived from an organism's mobile genetic elements, partly due to the highly divergent nature of TEs...
January 19, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28103510/exo-organoplasty-interventions-a-brief-review-of-past-present-and-future-directions-for-advance-heart-failure-management
#3
REVIEW
Waqas Nawaz, Farhan Ullah Khan, Muhammad Zahid Khan, Wang Gang, Mengqi Yang, Xiaoqian Liao, Li Zhang, Awais Ullah Ihsan, Amjad Khan, Lei Han, Xiaohui Zhou
Heart failure (HF) is a debilitating disease in which abnormal function of the heart leads to imbalance of blood demand to tissues and organs. The pathogenesis of HF is very complex and various factors can contribute including myocardial infarction, ischemia, hypertension and genetic cardiomyopathies. HF is the leading cause of death and its prevalence is expected to increase in parallel with the population age. Different kind of therapeutic approaches including lifestyle modification, medication and pacemakers are used for HF patients in NYHA I-III functional class...
January 16, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28093996/challenges-related-to-glycemic-control-in-type-2-diabetes-mellitus-patients
#4
Masoumeh Kheirandish, Hamidreza Mahboobi, Maryam Yazdanparast, Mohammad Amjad Kamal
Diabetes mellitus (DM) is a chronic disease with long-term complications. Glycemic control is an important part in management of DM. The first line in treatment of type 2 DM (T2DM) is diet and life style change. Metformin is the first choice of medication in T2DM patients. Sulfonylureas have high risk of hypoglycemia. Glinides are associated with lower risk of hypoglycemia in comparison to sulfonylureas. Also α-glucosidase inhibitors decrease the polysacarides digestion in small intestine and less effective in comparison to metformin and sulfonylureas in lowering hemoglobin A1c (HbA1c)...
January 15, 2017: Current Drug Metabolism
https://www.readbyqxmd.com/read/28093994/viral-infection-and-obesity-current-status-and-future-prospective
#5
Sayed Sartaj Sohrab, Mohammad Amjad Kamal, Richard L Atkinson, Maha M Alawi, Esam I Azhar
The association of pathogenic viruses with obesity has now been well-known in both human and animals. Globally, human obesity has become a serious problem leading to the emergence of multiple life-threatening diseases. Adenoviruses contribute a significant role in the induction of obesity by affecting various pathways. Due to impaired immunity, obese individuals are more prone to nosocomial infections leading to complications of obesity. In contrast, several other important factors contributing to human obesity are known...
January 16, 2017: Current Drug Metabolism
https://www.readbyqxmd.com/read/28093993/methods-of-screening-purification-and-antimicrobial-potentialities-of-bacteriocin-in-health-care
#6
Varish Ahmad, Qazi Mohammad Sajid Jamal, Mughees Uddin Siddiqui, Arun K Shukla, Mohammad A Alzohairy, Mohammad A Al Karaawi, Mohammad Amjad Kamal
The Antibiotics of twentieth century have emerged to decrease the mortality and morbidity among the human population, but these are costly and toxic to beneficial intestinal micro flora. The safe and convenient proteinacious antimicrobial molecule, active at nanomolar concentration and synthesized by ribosomes, is bacteriocin. It has been tested not only to inhibit a wide range of microbial pathogens, but also to treat and diagnose the cancer. Its use as bio-controlling agent in agriculture also accelerated the research of bacteriocin...
January 16, 2017: Current Drug Metabolism
https://www.readbyqxmd.com/read/28093970/evaluation-of-salivary-vitamin-c-and-catalase-in-hiv-positive-and-healthy-hiv-negative-control-group
#7
Fatemeh Ahmadi Motamayel, Samaneh Vaziri Amjad, Mohammad Taghi Goodarzi, Jalal Poorolajal
BACKGROUND: Saliva is a complex oral biologic fluid from major and minor salivary glands. Saliva has immunological, enzymatic and antioxidant defense mechanisms. Infection with human immunodeficiency virus (HIV) is life threatening disease. OBJECTIVE: The aim of this study was evaluation of salivary vitamin C and catalase level in HIV positive patients in comparison to healthy control group. METHOD: Forty nine HIV infected person and 49 healthy subjects were selected...
January 16, 2017: Infectious Disorders Drug Targets
https://www.readbyqxmd.com/read/28088890/nanoparticles-as-a-carrier-system-for-drug-delivery-across-blood-brain-barrier
#8
Alika Sarkar, Ismat Fatima, Qazi Mohammad Sajid Jamal, Usman Sayeed, M Kalim A Khan, Salman Akhtar, Mohammad Amjad Kamal, Alvina Farooqui, Mohammad Haris Siddiqui
Brain, the center of the nervous system and an integral part the body, is protected by two anatomical and biochemical dynamic barriers- Blood-Brain Barrier (BBB) and Blood-Cerebrospinal Fluid Barrier (BCSFB). Blood-Brain Barrier is a highly complex multi-cellular organized structure that protects the brain from harmful substances and invading organisms from the bloodstream and thus protecting it from diseases and injuries. However, it also significantly precludes the delivery of drug to the brain, thus, preventing treatment of a number of neurological disorders...
January 13, 2017: Current Drug Metabolism
https://www.readbyqxmd.com/read/28070252/study-of-functional-vulnerability-status-of-tehran-hospitals-in-dealing-with-natural-disasters
#9
Batol Ahmadi, Abbas Rahimi Foroushani, Narjes Tanha, Amjad Mohamadi Bolban Abad, Heshmatollah Asadi
INTRODUCTION: At the time of disasters, hospitals are considered as one of the most important facilities which should provide emergency services continuously. The purpose of this study was to determine the functional vulnerability of Tehran hospitals in dealing with natural disasters. METHODS: This cross-sectional study was conducted in educational hospitals of Tehran University of Medical Science (TUMS), in 2013. Of all 26 hospitals, 12 hospitals were selected through single-stage cluster sampling, including six general (Shariati, Amiralam, Sina, Imam, Hazrat Rasoul, Baharlou) and six specialized (Bahrami, Hazrat-e Aliasghar, Shahid rajaie, Roozbeh, Moheb yas, Children Medical Center) hospitals...
November 2016: Electronic Physician
https://www.readbyqxmd.com/read/28068766/membrane-adhesion-through-bridging-by-multimeric-ligands
#10
Omar Alexander Amjad, Bortolo Matteo Mognetti, Pietro Cicuta, Lorenzo Di Michele
Ligand/receptor multivalent interactions have been exploited to drive the self-assembly of nanoparticles, hard colloids, and more recently compliant units including emulsion droplets and lipid vesicles. In deformable liposomes, the formation of links between two membranes produces morphological changes depending on the amount of ligands in the environment. Here we study a proof-of-concept biosensing system in which single lipid vesicles adhere to a flat supported lipid bilayer, both decorated with membrane-anchored biotinylated receptors...
January 10, 2017: Langmuir: the ACS Journal of Surfaces and Colloids
https://www.readbyqxmd.com/read/28065956/lead-induced-morphometric-changes-in-the-kidneys-of-albino-rats-ameliorated-by-ginkgo-biloba-extract-egb-761
#11
Zaheer Amjad, Talat Yasmin, Irfan Ashraf, Khalida Perveen, Talat Mirza, Amir Ali Shoro
OBJECTIVE: To observe the effects of ginkgo biloba extract on lead-induced morphometric changes in the kidneys of albino rats. METHODS: This randomised controlled study was conducted at the Institute of Basic Medical Sciences, Dow University of Health Sciences, Karachi, from April 2009 to March 2010, and comprised male Wistar albino rats weighing between 150-180 gm who were randomly divided into three equal groups, A, B and C. These were further split into subgroups 1, 2, 3 and 4 according to the duration of the experiment (one, two, four and six weeks)...
January 2017: JPMA. the Journal of the Pakistan Medical Association
https://www.readbyqxmd.com/read/28056758/thrombotic-management-of-antiphospholipid-syndrome-towards-novel-targeted-therapies
#12
Md Asiful Islam, Fahmida Alam, Kah Keng Wong, Mohammad Amjad Kamal, Siew Hua Gan
Antiphospholipid syndrome (APS) is a systemic autoimmune disease characterized by thrombosis and/or pregnancy morbidity with persistent levels of antiphospholipid antibodies (aPLs). The development of thrombosis in APS is mediated by aPLs and contributes to the high mortality rate in APS patients. However, although APS has been reported for more than 30 years, there has been no optimal regimen for its prevention or for the management of thrombosis, mainly because the mainstay treatment strategies for managing APS are not targeted towards aPL-mediated thrombotic pathophysiology...
5, 2017: Current Vascular Pharmacology
https://www.readbyqxmd.com/read/28056755/common-therapeutic-modalities-against-diabetes-and-associated-cardiovascular-disease
#13
Nasimudeen R Jabir, Chelapram Kandy Firoz, Ghulam Md Ashraf, Syed Kashif Zaidi, Shazi Shakil, Mohammad Amjad Kamal, Shams Tabrez
Despite recent advances in medical research, the incidence of diabetes and cardiovascular disease (CVD)-induced fatal events is increasing. The literature point towards several co-occurring pathways that could lead to terminal complications related with these diseases. Different pathophysiological alterations such as hyperglycaemia, hyperinsulinaemia, insulin resistance, obesity, endothelial dysfunction and oxidative stress lead to the initiation and progression of atherosclerotic plaques. In view of the continuous rise in fatal events and overlapping pathological conditions associated with CVD and diabetes, there is a critical need to develop a common treatments against these diseases...
January 5, 2017: Current Vascular Pharmacology
https://www.readbyqxmd.com/read/28054901/libman-sacks-endocarditis-with-unusual-large-size-vegetation-involving-the-mitral-valve
#14
Amjad Bani Hani, Mahmoud Abu-Abeeleh, Murad M Al Kharabsheh, Lubaba Qabba'ah
Antiphospholipid syndrome (APS) is an autoimmune hypercoagulable disorder characterized by thrombophilia, vascular thrombosis, and recurrent abortions associated with persistent antiphospholipid antibodies. APS may exist in its primary form, or more commonly is found to be associated with variety of rheumatic disorders, such as systemic lupus erythematosus. Cardiac involvement is not an uncommon complication in primary antiphospholipid patients. Libman-Sacks lesions are typically small, sessile, and wart-like, varying in size from 1-4 mm...
21, 2016: Heart Surgery Forum
https://www.readbyqxmd.com/read/28050863/incremental-prognostic-value-of-spect-mpi-in-chronic-kidney-disease-a-reclassification-analysis
#15
Amjad M Ahmed, Waqas T Qureshi, Wesley T O'Neal, Fatima Khalid, Mouaz H Al-Mallah
BACKGROUND: Traditional cardiovascular (CV) risk factors have limited predictive value of CV mortality in patients with chronic kidney disease (CKD, creatinine clearance less than 60 mL/minute per 1.73 m(2)). The aim of this study was to evaluate incremental and independent prognostic value of single-photon emission computerized tomography-myocardial perfusion imaging (SPECT-MPI) across continuum of renal function. METHODS: We retrospectively studied 11,518 (mean age, 65 ± 12 years; 52% were men) patients referred for a clinical indication of SPECT-MPI between April 2004 and May 2009...
January 3, 2017: Journal of Nuclear Cardiology: Official Publication of the American Society of Nuclear Cardiology
https://www.readbyqxmd.com/read/28049401/alzheimer-s-disease-and-natural-products-future-regimens-emerging-from-nature
#16
Md Asiful Islam, Shahad Saif Khandker, Fahmida Alam, Md Ibrahim Khalil, Mohammad Amjad Kamal, Siew Hua Gan
Alzheimer's disease (AD), which largely affects the elderly, has become a global burden. Patients with AD have both short- and long-term memory impairments. The neuronal loss in AD occurs due to abnormally folded amyloid beta proteins and aggregation of hyperphosphorylated tau proteins in the brain. Eventually, amyloid plaques and neurofibrillary tangles are formed, which subsequently disintegrate the neuronal transport system. There are several factors which are involved in AD pathogenesis, including oxidative stress, inflammation and the presence of metal ions...
January 3, 2017: Current Topics in Medicinal Chemistry
https://www.readbyqxmd.com/read/28049400/elucidating-treatment-of-alzheimer-s-disease-via-different-receptors
#17
Badar Ul Islam, Mohd Shahnawaz Khan, Nasimudeen R Jabir, Mohammad Amjad Kamal, Shams Tabrez
Alzheimer's disease (AD) is an irreversible multifaceted neurodegenerative disorder that gradually degrades neuronal cells. Presently, it is the most common reason for the memory loss and dementia in older individuals. It is patho-physiologically described by extracellular amyloid beta (Aβ) deposition, intracellular neurofibrillary tangles (NFTs) retention, neuronal decline, and neurotransmitter system derangement. Various receptors such as nicotinic acetylcholine, N-methyl-D-aspartate, insulin, serotonin, adenosine, and histamine are actively involved in the physiological progression of AD...
January 3, 2017: Current Topics in Medicinal Chemistry
https://www.readbyqxmd.com/read/28049398/infectious-agents-and-neurodegenerative-diseases-exploring-the-links
#18
Mohammad Zubair Alam, Qamre Alam, Mohammad Amjad Kamal, Asif Ahmad Jiman-Fatani, Esam I Azhar, Mohammad Azhar Khan, Absarul Haque
Recent studies have shown that bacterial and viral infections are risk factors for various neurodegenerative diseases such as Amyotrophic lateral sclerosis (ALS), Multiple Sclerosis (MS), Alzheimer's disease (AD), and Lyme disease (LD). However, it is still controversial how the infections play a role in neurological diseases progression. Infections in central nervous system may lead multiple damages in infected and neighboring cells. The infection leads to the activation of inflammatory processes and host immune responses, which acts as defense mechanism and also causes damage to the host neuronal functions and viability...
January 3, 2017: Current Topics in Medicinal Chemistry
https://www.readbyqxmd.com/read/28049396/oxidative-stress-and-antioxidant-potential-of-one-hundred-medicinal-plants
#19
Waseem Hassan, Hamsa Noreen, Shakila Rehman, Shehnaz Gul, Mohammad Amjad Kamal, Jean Paul Kamdem, Bakht Zaman, Joao B T da Rocha
Reactive species are produced in biological system because of redox reactions. The imbalance in pro-oxidant and antioxidant homeostasis leads to the production of toxic reactive oxygen and nitrogen species like hydrogen peroxide, organic peroxides, hydroxyl radicals, superoxide anion and nitric oxide. Inactivation of metabolic enzymes, oxidation of biomolecules and cellular damage are some of the prominent characteristics of reactive species. Similarly, oxidative stress has been associated with more than one hundred (100) pathologies such as atherosclerosis, diabetes, cardiovascular diseases, pancreatic and liver diseases, joint disorders, cardiac fibrosis, acute respiratory distress syndrome, neurological diseases (amyotrophic lateral sclerosis, Huntington's disorder, Parkinson's disease and Alzheimer's disease), ageing and cancer etc...
January 2, 2017: Current Topics in Medicinal Chemistry
https://www.readbyqxmd.com/read/28043307/the-short-term-effects-of-insulin-metformin-and-insulin-metformin-combination-on-the-liver-morphology-in-high-fat-diet-streptozotocin-induced-diabetic-albino-rats
#20
Sahar Mubeen, Zaheer Amjad, Farrukh Mustafa Memon, Syed U Ashraf
OBJECTIVE: To evaluate the histological effects of insulin, metformin and insulin-metformin combination on liver morphology in high fat diet (HFD) / Streptozotocin (STZ) induced diabetic albino rats. STUDY DESIGN: Experimental and comparative study. PLACE AND DURATION OF STUDY: Institute of Basic Medical Sciences (IBMS), Dow University of Health Sciences (DUHS), Ojha Campus, Karachi, from January to August 2012. METHODOLOGY: The study was conducted on 50 HFD/STZ induced diabetic albino wistar rats which were randomized into 5 groups...
December 2016: Journal of the College of Physicians and Surgeons—Pakistan: JCPSP
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