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Sathyaseelan Subramaniam, Jennifer H Chao
Sickle cell disease is a chronic hematologic disease with a variety of acute, and often recurring, complications. Vaso-occlusive crisis, a unique but common presentation in sickle cell disease, can be challenging to manage. Acute chest syndrome is the leading cause of death in patients with sickle cell disease, occurring in more than half of patients who are hospitalized with a vaso-occlusive crisis. Uncommon diagnoses in children, such as stroke, priapism, and transient red cell aplasia, occur more frequently in patients with sickle cell disease and necessitate a degree of familiarity with the disease process and its management...
November 2016: Pediatric Emergency Medicine Practice
P Dhakal, V R Bhatt
Diagnosis and management of hematopoietic cell transplant-associated thrombotic microangiopathy (TA-TMA) are very complex and controversial, given multiple ongoing issues and comorbidities in sick transplant recipients. Complement activation via classic and alternative pathways is emerging as a potential pathogenetic mechanism in the development of TA-TMA. Complement-centric diagnostic strategy using functional and genetic tests may possibly support diagnosis, enhance molecular understanding and direct drug development...
October 24, 2016: Bone Marrow Transplantation
Rekhadevi P V, M F Rahman, M Mahboob, S I Kumari, S Chinde, Bhanuramya M, Naresh D, Paramjit Grover
OBJECTIVE: This study was designed to determine the genotoxic effect of exposure to a mixture of pesticides in 106 female agricultural workers employed in cotton fields from India. METHODS: Comet, micronucleus and chromosomal aberrations tests were carried out in peripheral blood lymphocytes. Micronucleus test was also performed in buccal epithelial cells. Levels of antioxidant enzymes, RBC Acetylcholinesterase and hematological parameters were analyzed in the blood samples of the study subjects...
October 24, 2016: Biomarkers: Biochemical Indicators of Exposure, Response, and Susceptibility to Chemicals
Mazdak A Khalighi, Monica P Revelo, Josephine D Abraham, Fuad Shihab, Faris Ahmed
Kidney injury related to paraproteinemia is common and typically occurs after the 4(th) decade of life in association with an underlying plasma cell dyscrasia or other lymphoproliferative disease. Kidney transplantation in paraprotein-related kidney disease can be successful in conjunction with treatment of the underlying hematopoietic process; however, when hematologic response to therapy is not achieved, recurrent kidney injury is frequently seen. We describe a young male patient who presented with end stage kidney disease at the age of 23 years thought to be secondary to focal segmental glomerulosclerosis who ultimately received two kidney allografts...
October 24, 2016: American Journal of Transplantation
Morné A Strydom, Janette Bester, Sthembile Mbotwe, Etheresia Pretorius
A significant burden of illness is caused globally by snakebites particularly by the puff adder, Bitis arietans. Presently there is no reliable and rapid method to confirm envenomation on blood chemistry; although coagulation parameters like prothrombin time, partial thromboplastin time, international normalized ratio and also serum electrolytes are tested. Here, we found that direct in vitro exposure of physiological relevant whole venom levels to human healthy blood (N = 32), caused significant physiological changes to platelet activity using a hematology analyzer, and measuring occlusion time, as well as lyses time, with the global thrombosis test (GTT)...
October 24, 2016: Scientific Reports
Dimitry A Chistiakov, Veronika A Myasoedova, Alexander N Orekhov, Yuri V Bobryshev
Epigenetic mechanisms, which are involved in the regulation of gene expression, are tightly controlled. Loss of a proper epigenetic control can lead to global epigenetic alterations frequently observed in various diseases including cancer. Aberrant epigenetic changes induced in malignant cells lead to emergence of neoplastic properties, which inhibit cell differentiation and strict cell cycle control but greatly enhance stemness-related features. However, abnormal epigenetic patterns can be reversed by action of epigenetically active agents...
October 21, 2016: Current Pharmaceutical Design
Kriti Mohan
BACKGROUND: Malaria is an important cause of death and illness in children worldwide. Most cases of neonatal malaria are misdiagnosed because of the lack of specific symptoms and a general lack of awareness. Nothing much is known in literature about the haematological changes during malaria infection and outcome of disease in neonates. Neonatal malaria is an underdiagnosed entity. So this hospital based observational study aims to assess diagnostic features of neonatal malaria. METHODS: From August 2004 to August 2013, information of all slide positive for malaria cases aged 0 to 28 days admitted to our pediatric hospital was collected and analysed...
October 20, 2016: Infectious Disorders Drug Targets
Shoab Saadat
OBJECTIVE:  The study was conducted to analyze the predictors of prolonged hospitalization in patients with fever. PATIENTS AND METHODS:  This was a prospective cohort study conducted from July - December 2015 at Ayub Teaching Hospital, Pakistan. Convenience sampling was used to enroll the patients who visited the hospital during the study duration. A sample size of 115 patients was calculated. It included patients who presented with a new onset fever which started in the last month, and the cause of fever was undiagnosed at the time of admission...
September 18, 2016: Curēus
Fleur M Ferguson, Jing Ni, Tinghu Zhang, Bethany Tesar, Taebo Sim, Nam Doo Kim, Xianming Deng, Jennifer R Brown, Jean J Zhao, Nathanael S Gray
Dual inhibition of PI3K-δ and PI3K-γ is an established therapeutic strategy for treatment of hematological malignancies. Reported molecules targeting PI3K-δ/γ selectively are chemically similar and based upon isoquinolin-1(2H)-one or quinazolin-4(3H)-one scaffolds. Here we report a chemically distinct series of potent, selective PI3K-δ/γ inhibitors based on a 5,11-dihydro-6H-benzo[e]pyrimido[5,4-b][1,4]diazepin-6-one scaffold with comparable biochemical potency and cellular effects on PI3K signaling. We envisage these molecules will provide useful leads for development of next-generation PI3K-δ/γ targeting therapeutics...
October 13, 2016: ACS Medicinal Chemistry Letters
Tijana R Djukic, Swapna Karthik, Igor Saveljic, Valentin Djonov, Nenad Filipovic
Due to the important biological role of red blood cells (RBCs) in vertebrates, the analysis of reshaping and dynamics of RBCs motion is a critical issue in physiology and biomechanics. In this paper the behavior of RBCs within the immature capillary plexus during embryonic development of zebrafish has been analyzed. Relying on the fact that zebrafish embryos are small and optically transparent, it is possible to image the blood flow. In this way the anatomy of blood vessels is monitored along with the circulation throughout their development...
2016: Frontiers in Physiology
Oksana N Khokhlova, Elena A Tukhovskaya, Irina N Kravchenko, Elena S Sadovnikova, Irina A Pakhomova, Elena A Kalabina, Alexander V Lobanov, Elvira R Shaykhutdinova, Alina M Ismailova, Arkady N Murashev
INTRODUCTION: It is important that the method of anesthesia of mice does not considerably alter the animal's physiological and metabolic status before terminal blood sampling taken in order to analyze clinical pathology parameters. METHODS: Hematology, hemostasis, and clinical chemistry parameters were compared in male and female BALB/c mice exposed to either tiletamine-zolazepam-xylazine (TZX) anesthesia or euthanasia in carbon dioxide (CO2) chamber to reveal an alternative method of anesthesia vs...
October 20, 2016: Journal of Pharmacological and Toxicological Methods
Amit D Kadhare, Subhash L Bodhankar, V Mohan, Prasad A Thakurdesai
Vicenin-1 (fenugreek glycoside) has been proven to possess potent anti-inflammatory and anti-oxidant activity. The objective of the present investigation was to determine in-vivo acute and subacute (28-days repeated dose) oral toxicity of Vicenin-1 isolated from fenugreek seed. Vicenin-1 (93%) was isolated from a hydroalcoholic extract of fenugreek seed and characterized using HPLC, TLC, (1)H NMR and (13)C NMR. Acute oral toxicity (AOT) and subacute toxicity studies of Vicenin-1 were carried out according to OECD 425 (up-and-down procedure) and OCED 407 guidelines in Swiss albino mice...
October 20, 2016: Regulatory Toxicology and Pharmacology: RTP
Frank Bridoux, Vincent Javaugue, Sébastien Bender, Fannie Leroy, Pierre Aucouturier, Céline Debiais-Delpech, Jean-Michel Goujon, Nathalie Quellard, Amélie Bonaud, Marie Clavel, Patrick Trouillas, Florent Di Meo, Jean-Marc Gombert, Jean-Paul Fermand, Arnaud Jaccard, Michel Cogné, Guy Touchard, Christophe Sirac
Randall-type heavy chain deposition disease (HCDD) is a rare disorder characterized by tissue deposition of a truncated monoclonal immunoglobulin heavy chain lacking the first constant domain. Pathophysiological mechanisms are unclear and management remains to be defined. Here we retrospectively studied 15 patients with biopsy-proven HCDD of whom 14 presented with stage 3 or higher chronic kidney disease, with nephrotic syndrome in 9. Renal lesions were characterized by nodular glomerulosclerosis, with linear peritubular and glomerular deposits of γ-heavy chain in 12 patients or α-heavy chain in 3 patients, without concurrent light chain staining...
October 20, 2016: Kidney International
Porcelli Stefano, Crisafulli Concetta, Donato Luigi, Calabrò Marco, Politis Antonis, Liappas Ioannis, Albani Diego, Atti Anna Rita, Salfi Raffaele, Raimondi Ilaria, Forloni Gianluigi, Papadimitriou George N, De Ronchi Diana, Serretti Alessandro
INTRODUCTION: With the increase of the population's average age, Alzheimer's disease (AD) is becoming one of the most disabling diseases worldwide. Recently, neurodevelopment processes have been involved in the AD etiopathogenesis. Genetic studies in this field could contribute to our knowledge and suggest new molecular targets for possible treatments. METHODS: Our primary aim was to investigate the associations among single nucleotide polymorphisms (SNPs) within neurodevelopment related genes (BDNF, ST8SIA2, C15orf32, NCAPG2, ESYT2, WDR60, LOC154822, VIPR2, GSK3B, NR1I2, ZNF804A, SP4) and AD...
November 15, 2016: Journal of the Neurological Sciences
Maliha Khan, Armaghan-E-Rehman Mansoor, Tapan M Kadia
Acute myeloid leukemia (AML) is a markedly heterogeneous hematological malignancy that is most commonly seen in elderly adults. The response to current therapies to AML is quite variable, and very few new drugs have been recently approved for use in AML. This review aims to discuss the issues with current trial design for AML therapies, including trial end points, patient enrollment, cost of drug discovery and patient heterogeneity. We also discuss the future directions in AML therapeutics, including intensification of conventional therapy and new drug delivery mechanisms; targeted agents, including epigenetic therapies, cell cycle regulators, hypomethylating agents and chimeric antigen receptor T-cell therapy; and detail of the possible agents that may be incorporated into the treatment of AML in the future...
October 24, 2016: Future Oncology
Valentina Decimi, Grazia Fazio, Fabiola Dell'Acqua, Silvia Maitz, Marta Galbiati, Carmelo Rizzari, Andrea Biondi, Giovanni Cazzaniga, Angelo Selicorni
Williams syndrome (WBS) is a rare neurodevelopmental disorder with specific phenotypic characteristics and cardiac abnormalities, but is not considered as a cancer predisposing condition. However, in rare cases, malignancies have been described in patients with WBS, with hematologic cancer (mainly Burkitt Lymphoma and Acute Lymphoblastic Leukemia) as the most represented. We report here the case of a boy with WS and B-NHL. This is the unique case within the large cohort of patients (n = 117) followed in our institution for long time (mean clinical follow-up, 13 years)...
October 19, 2016: European Journal of Medical Genetics
Pearlie P Chong, David van Duin, Ananta Bangdiwala, Anastasia Ivanova, William C Miller, David J Weber, Peter H Gilligan, Thomas C Shea
PURPOSE: Case reports of treatment failure with standard-dose daptomycin (6 mg/kg) have recently surfaced in vancomycin-resistant Enterococcus (VRE) bloodstream infection (BSI) episodes with daptomycin MICs of 3 to 4 mg/L. The clinical implications of daptomycin MICs of 3 to 4 mg/L in VRE BSIs have not been elucidated. METHODS: We performed a single institutional retrospective analysis of adult stem cell transplant recipients and patients with hematologic malignancies diagnosed with VRE BSI from 2006 to 2014 and compared outcomes between those with daptomycin MICs of 3 to 4 mg/L those with 2 mg/L, as determined by Etest...
October 19, 2016: Clinical Therapeutics
I-Ting Tsai, Chao-Ping Wang, Teng-Hung Yu, Yung-Chuan Lu, Chih-Wen Lin, Li-Fen Lu, Cheng-Ching Wu, Fu-Mei Chung, Yau-Jiunn Lee, Wei-Chin Hung, Chia-Chang Hsu
Adipocytokines play an important role in adipose tissue homeostasis, especially in obesity-associated disorders such as non-alcoholic fatty liver and their complications including hepatocellular carcinoma (HCC). Although visfatin is an adipocytokine highly expressed in visceral fat that has been demonstrated to play a critical role in the progression of human malignancies, little is known about the role of visfatin in HCC associated with chronic hepatitis C virus (HCV) and hepatitis B virus (HBV) infection...
October 19, 2016: Cytokine
I Tsintsadze, T Gorgoshadze, S Donskov, L Akhvlediani, M Nagervadze
The distribution of erythrocyte blood group antigens was evaluated among 656 donors; samples were provided by the diagnostic laboratory "Medina" Ltd Health Centre of Batumi. Lab analysis of the sample was conducted by the immunogenetics laboratory at Batumi Shota Rustaveli State University. The frequency of the ABO allele system in donors was as follows: r (0.70), q (0.23), p (0.07). The distribution of Rhesus (Rh) factor in the donor population was as follows: Rh(-) was found among 16.3±1.43% of investigated donors; the Rh(+) phenotype was found in 83...
September 2016: Georgian Medical News
Fausto Petrelli, Sandro Barni, Giacomo Bregni, Filippo de Braud, Serena Di Cosimo
BACKGROUND: The interest in platinum salts in breast cancer (BC) therapy has been recently renewed as inhibition of DNA damage response may enhance the effects of DNA-damaging agents in BC tumors with high genomic instability. The present systematic review and meta-analysis of randomized trials were performed to assess the efficacy and safety of therapy with platinum salts in patients with locally advanced or metastatic (hereinafter advanced) BC. METHODS: We searched PubMed, EMBASE, SCOPUS, Web of Science, the Cochrane Library, and CINAHL for phase II/III clinical trials that assessed efficacy of platinum-based therapy in patients with advanced BC...
October 21, 2016: Breast Cancer Research and Treatment
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