The assembly of anisotropic nanomaterials into ordered structures is challenging. Nevertheless, such self-assembled systems are known to have novel physicochemical properties and the presence of a chromophore within the nanoparticle ensemble can enhance the optical properties through plasmon-molecule electronic coupling. Here, we report the end-to-end assembly of gold nanorods into micrometer-long chains using a linear diamino BODIPY derivative.
View Article and Find Full Text PDFOrb2 the Drosophila homolog of cytoplasmic polyadenylation element binding (CPEB) protein forms prion-like oligomers. These oligomers consist of Orb2A and Orb2B isoforms and their formation is dependent on the oligomerization of the Orb2A isoform. Drosophila with a mutation diminishing Orb2A's prion-like oligomerization forms long-term memory but fails to maintain it over time.
View Article and Find Full Text PDFBackground: Types 1 and 2 myocardial infarction (MI) may occur in the setting of gastrointestinal bleeding (GIB). There is a paucity of data pertinent to the contemporary prevalence and impact of types 1 and 2 MI following GIB. We examined clinical profiles and the prognostic impact of both MI types on outcomes of patients hospitalized with GIB.
View Article and Find Full Text PDFSoc Sci Humanit Open
March 2022
Covid-19 has made a significant impact on the lives of people. The education sector is also impacted by it. The unwarranted change was difficult to handle at first, but slowly got mitigated.
View Article and Find Full Text PDFPsychopharmacol Bull
November 2021
Clozapine is a second generation antipsychotic agent which is drug of choice for treatment resistant schizophrenia. Tachycardia and postural hypotension are most frequently observed cardiovascular adverse effects, but reports on new-onset persistently elevated blood pressure are sparse. Mechanisms underlying clozapine induced hypertension also remain unclear.
View Article and Find Full Text PDFBackground: Post-stroke seizures (PSS) are associated with significant morbidity and mortality across the globe. There is a paucity of data on PSS in Africa.
Purpose: To assess the frequency and factors associated with PSS by stroke types across 15 hospitals in Nigeria and Ghana.
In the present work cassava starch/agar Ag and ZnO nanocomposite films were prepared by the solution casting method. The structural, physical and antimicrobial properties of the nanocomposite films were studied as a function of the concentration of Ag and ZnO nanoparticles. The results of the thermogravimetric analysis showed 8-15% degradation of both the nanocomposite films at 150°C endorsing the thermal stability of the films.
View Article and Find Full Text PDFBackground: It is crucial to assess genomic literacy related to stroke among Africans in preparation for the ethical, legal and societal implications of the genetic revolution which has begun in Africa.
Objective: To assess the knowledge, attitudes and practices (KAP) of West Africans about stroke genetic studies.
Methods: A comparative cross-sectional study was conducted among stroke patients and stroke-free controls recruited across 15 sites in Ghana and Nigeria.
Brassica juncea is mainly cultivated in the arid and semi-arid regions of India where its production is significantly affected by soil salinity. Adequate knowledge of the mechanisms underlying the salt tolerance at sub-cellular levels must aid in developing the salt-tolerant plants. A proper functioning of chloroplasts under salinity conditions is highly desirable to maintain crop productivity.
View Article and Find Full Text PDFBioactive pigments were extracted and purified from cultures of Serratia marcescens and Chromobacterium violaceum. Spectroscopic, FTIR, and HPLC analyses showed prodigiosin and violacein as the principle molecules in the extract. Bioactive microbial pigments prodigiosin, violacein and their combinations with phytosynthesized silver and gold nanoparticles were studied for in vitro growth inhibition of Plasmodium falciparum and Trypanosoma brucei gambiense.
View Article and Find Full Text PDFTumefactive multiple sclerosis (MS) is a rare variant of MS characterized by the presence of large demyelinating plaques of more than 2 cm, identified with magnetic resonance imaging (MRI). Distinguishing tumefactive lesions from other etiologies of intracranial space occupying lesions is necessary to avoid the inadvertent intervention. We had a 14-year-old girl who presented to us with two episodes of subacute hemiparesis over a span of 6 months.
View Article and Find Full Text PDFMosquito control protein from Bacillus thuringiensis gets inactivated with exposure to sunlight. To address this issue, the potential of synthetic and natural dye was investigated as sunlight protectants. Bt SV2 in absence of dyes when exposed to sunlight showed reduced effectiveness against the fourth instars of mosquito larvae.
View Article and Find Full Text PDFIneffectiveness of available nematicides and the high damage caused by plant-parasitic nematodes result in the urgent need to find some natural remedy for their control. Bioactivity of the pigment extracted from Serratia marcescens was screened for controlling nematodes at their juvenile stage. Test pigment was found effective against juvenile stages of Radopholus similis and Meloidogyne javanica at low concentrations (LC50 values, 83 and 79 μg/mL, respectively) as compared with positive control of copper sulphate (LC50 values, 380 and 280 μg/mL, respectively).
View Article and Find Full Text PDFIn this study, loop-mediated isothermal amplification (LAMP)-based molecular marker was developed for authentication of Catharanthus roseus, a medicinal plant. Samples of this plant were collected from different geographical locations in India. Random amplified polymorphic deoxyribonucleic acid (DNA) analysis of collected samples was carried out with 25 random primers.
View Article and Find Full Text PDFMICROPARTICLES OFFER VARIOUS SIGNIFICANT ADVANTAGES AS DRUG DELIVERY SYSTEMS, INCLUDING: (i) an effective protection of the encapsulated active agent against (e.g. enzymatic) degradation, (ii) the possibility to accurately control the release rate of the incorporated drug over periods of hours to months, (iii) an easy administration (compared to alternative parenteral controlled release dosage forms, such as macro-sized implants), and (iv) Desired, pre-programmed drug release profiles can be provided which match the therapeutic needs of the patient.
View Article and Find Full Text PDFA selective, specific and sensitive ultra high pressure liquid chromatography (UHPLC) method was developed for determination of tacrolimus degradation products and tautomers in the preparation of pharmaceuticals. The chromatographic separation was performed on Waters ACQUITY UPLC system and BEH C₈ column using gradient elution of mobile phase A (90:10 v/v of 0.1% v/v triflouroacetic acid solution and Acetonitrile) and mobile phase B (90:10 v/v acetonitrile and water) at a flow rate of 0.
View Article and Find Full Text PDFIntroduction: Transurethral resection syndrome is an uncommon but potentially life threatening complication. Various irrigating solutions have been used, normal saline being the most physiological. The recent availability of bipolar cautery has permitted the use of normal saline irrigation.
View Article and Find Full Text PDFA stability-indicating gas chromatography (GC) method has been developed and validated for the quantitative determination of divalproex sodium impurities in pharmaceutical preparation. A technique has been developed whereby the peak purity of a compound with poor UV detection can be determined using a gas chromatograph coupled with a mass spectrometer. The drug products were subjected to hydrolysis, oxidation, photolysis, and heat to apply stress conditions.
View Article and Find Full Text PDFBecause all humans have an identity in life, compassionate societies require that this identity be recognized after death. Traits that are incorporated purposefully into the teeth as a result of cultural considerations are common. The positive identification of living or deceased persons using the unique traits and characteristics of the teeth is a cornerstone of forensic science.
View Article and Find Full Text PDFBrain metastases from cervical carcinomas are extremely rare. We report a patient with squamous cell carcinoma of the cervix who developed an isolated left parietooccipital lobe metastasis within 4 months of treatment of the primary disease. The presenting symptoms of the metastatic disease were visual disturbance, headache, and vomiting.
View Article and Find Full Text PDFBackground: Inflammatory myofibroblastic tumor (IMT) is a neoplasm of unknown etiology occurring at various sites. By definition, it is composed of spindle cells (myofibroblasts) with variable inflammatory component, hence the name is IMT.
Case Presentation: The present case is of a 46 years old woman presented with a history of flank pain, abdominal mass and intermittent hematuria for last 6 months.