Medical & Health Sciences

Research Papers/Topics in Medical & Health Sciences

Long term imaging of bacterial colonies

Bacterial populations grown in a lab environment are typically seen as homogeneous in terms of growth rate, size, and content. However, recent findings have shown that even during exponential growth phase, these cells can be heterogeneous. This has important consequences for how bacteria respond to stressors such as antibiotics. For example, the concept of antimicrobial persistence is linked to a small subpopulation of cells that enter a dormant state where antibiotics are no longer effective...

Video Capsule Endoscopy and Ingestible Electronics

In this review, we focus on the hardware and software technologies used for the purpose of gastrointestinal tract monitoring in a safe and comfortable manner. We review the FDA guidelines for ingestible wireless telemetric medical devices, and the features incorporated in capsule systems such as microrobotics, closed-loop feedback, physiological sensing, nerve stimulation, sampling and delivery, panoramic imaging and rapid reading software. Both experimental and commercialized capsule systems...

Electrotaxis

A nonmechanical, unidirectional valve, the Nematode Electrotactic-Response Valve (NERV), has been developed to control the motion of Caenorhabditis elegant (C. elegans) in microfluidic devices. By forming a region of lateral electric field, which can be switched or reversed, the NERV prevents worms from advancing through it if the field lines are angled against the movement of the worms. Upon arriving at the boundary of the NERV, the worms penetrate the field area briefly and then retreat and...

Anthelmintic resistance in worms infecting animals

It is becoming more essential to identify and recognize the phenotypes of anti-parasitic drug-resistant isolates. Current molecular methods of doing so are restricted. In this paper, we showcase a microfluidic bioassay to measure phenotype using parameters of nematode locomotion, using larvae of the animal parasite Oesophagostomum dentatum. Parameters of sinusoidal movement, including propagation speed, wavelength, wave amplitude, and oscillation frequency, were dependent on the levamisole-se...

Assessment of Factors Affecting Mother's Perception of Caesarian Delivery in State Hospital Ijebu Ode

ABSTRACT Introduction: This study is aimed at assessing the perceptions and attitudes towards caesarean section (CS) among women attending maternity care at the state Hospital Ijebu-ode Community.  Methods: This is a descriptive study which involved all pregnant mothers using State Hospital Ijebu-Ode. They were interviewed with a structured questionnaire containing socio-demographic characteristics, previous pregnancy and delivery history as well as knowledge, perceptions and attitudes tow...

Perceived Factors Affecting Non-Stay of Health Workers in Rural Areas of Enugu State

ABSTRACT A major challenge to the achievement of Millennium Development Goals is the shortage of health workers in the remote areas, especially in the developing countries where preventable disease burden is high. The aim of the study was to determine perceived factors contributing to non-stay of professional health workers in rural areas of Enugu state and strategies to retain them. The study was a descriptive, cross-sectional, questionnaire-based study carried out in randomly selected heal...

Protective Role of Aqueous Leaf Extract of Vernonia Amygdalina Del. (Asteraceae) and Ocimum Gratissimum Linn (Lamiaceae) in Cyclophosphamide Induced Urotoxicity and Myelosuppression

ABSTRACT  Cyclophosphamide (CP) is one of the most potent and widely used alkylating anticancer agents. Urotoxicity and myelosuppression is known as the most prevailing dose-limiting toxicity associated with CP. In the present study, the protective potential of Vernonia amygdalina and Ocimum gratissimum aqueous leaf extracts in CP-induced urotoxicity and myelosupression were evaluated using biochemical and histopathological approaches. Sodium -2-macarptoethane sulfonate (MESNA) was used as a...

Sonographic Prevalence of Gallstone among Adult Subjects in Nnewi Anambra State, Nigeria

ABSTRACT  Gallbladder stones are sometimes silent disease and often neglected, and could cause life threatening medical complications when it manifests clinically. The aim of this study is to determine the prevalence of gallbladder stone in the adult population of Nnewi, Anambra State, Nigeria. A cross sectional study was conducted during a period of 34 months; from June, 2011 to April, 2014. A convenience sample of 3501 consecutive consenting subjects who met the inclusion criteria was eval...

Estimation of Ocular Axial Length using Magnetic Resonance Imaging Technique among Adults in Jos Metropolis, North-Central Nigeria

ABSTRACT The purposes of this study are to generate an indigenous normogram for ocular axial lengths in a Nigerian population, determine whether there are differences in axial lengths between the right and left eye and among different adult age groups. The study will also determine whether there are differences in axial lengths between males and females and possible racial differences between Nigerians and Caucasians. This prospective, cross sectional study involving one hundred (100) Nigeri...

Effects of Botanicals and Biocontrol Agents on Growth and Aflatoxin Production by Aspergillus Flavus Infecting Maize in Some Parts of Nigeria

ABSTRACT In a comprehensive study to assess the effects of botanicals and biocontrol agents on growth and aflatoxin (AF) production by Aspergillus flavus (A. flavus) infecting maize, a total of 1143 maize samples, collected in eighteen batches of five maize varieties (yellow, white, pop, variegated and mixed) from northern and southern parts of Nigeria were investigated between June 2011 to December 2013. Samples collected from field, 414 (36.2%) and stored batches, 729 (63.8%) were cultured...

Personality Types as Correlates of Test Anxiety among University-Based and Hospital-Based Nursing Students in Selected Nursing Schools in Enugu Urban

ABSTRACT Test anxiety is an unpleasant state characterized by feelings of tension, apprehension, worrisome thoughts and the activation of the autonomic nervous system when an individual faces evaluative achievement-demanding situation. It is the uneasiness felt by students who had fear of failing an examination and/or test taking. This leads to hyper-arousal conditions that result in the physiological, emotional and intellectual changes that prevent the use of previously learned information ...

Assessment of Terminally Ill Patients’ Perception on Communication of Prognostic Information by Healthcare Providers in University of Nigeria Teaching Hospital, Ituku/Ozalla.

ABSTRACT  This study investigated terminally ill patients’ opinion on communication of prognostic information by healthcare providers. It specifically determined the views of terminally ill patients on what healthcare providers communicated to them about their prognosis; which of the healthcare providers that communicates prognostic information to terminally ill patients; the condition under which healthcare providers communicate prognostic information to terminally ill patients and ascert...

The Effect of Ocimum Tenuiflorum (Nchuanwu) Leaf Extract on Hematolgical Parameters of Immumnosuppressed Albino Rats.

ABSTRACT The effect of Ocimum tenuiflorum on hematological parameters in immunosuppressed albino rats was investigated in this study. The aqueous (AE) and methanol extract (ME) of the leaf were obtained. Acute toxicity study was done to determine the LD50 of the leaf extract. Rats of mixed sexes, aged 2- 3months, weighing 150 to 240 grams were used. The rats were divided into 8 groups A-H of four rats each. Group A served as normal control. Immunesuppression was induced using 3mg/kg bodyweig...

Evaluation of Phyto-Chemical and Medicinal Properties of Cannabis Sativa Linn. (Family Moraceae).

Abstract This work studied the various delivery systems (oral and parental formulations) of crude Cannabis. The stability, pharmacological and toxicological profiles of Cannabis resin in the formulations was also studied. Dried powdered leaves of Cannabis sativa L. were extracted with chloroform, the extract was concentrated to obtain an oil-based tar (resin) and its phytochemical composition determined. The Cannabis crude resin was formulated as syrup, capsule and suppository dosage forms. ...

Traffic Accidents in Khartoum State

INTRODUCTION 1.1 BACKGROUND: Road traffic crashes are a leading cause of death globally, and the main cause of death among those aged 15–29 years (see Figure 1.1), every year the lives of approximately 1.25 million people are cut short as a result of a road traffic crash. Between 20 and 50 million more people suffer non-fatal injuries, with many incurring a disability as a result of their injury. Road traffic injuries cause considerable economic losses to victims, their families, and to na...


91 - 105 Of 5716 Results