Thursday 27 October 2016

A Discriminative Feature Space for Detecting and Recognizing Pathologies of the Vertebral Column

Over the years there has been an increase in machine learning (ML) techniques, such as Random Forrest (RF), Boosting (ADA), Logistic (GLM), Decision Trees (RPART), Support Vector Machines(SVM), and Artificial Neural Networks (ANN) applied to many medical fields. A significant reason this has become the case is the capacity for human beings to act as diagnostic tools over time. Stress, fatigue, inefficiencies, and lack of knowledge all become barriers to high- quality outcomes.

Pathologies of the Vertebral Column
There have been studies regarding applications of data mining in different fields, namely: biochemistry, genetics, oncology, neurology and However, literature suggests that there are few comparisons of machine learning algorithms and techniques in medical and biological areas. Of these ML algorithms, the most common approach to develop nonparametric and nonlinear classifications is based on ANNs.

Tuesday 25 October 2016

The Neural Networks with an Incremental Learning Algorithm Approach for Mass Classification in Breast Cancer

Artificial neural networks
Breast cancer is a leading fatality cancer for woman. According to epidemiological data, breast cancer accounts for 20-25% of female malignant tumor, with is expected to increase. These facts have driven us to select this deadly cancer as our domain. Breast cancer has four early signs; micro-calcification, mass, architectural distortion and breast asymmetries. However, only data regarding mass will be used as a pilot project to test our system later on. 

Masses of 2 cm in diameter are palpable with regular breast self-examination while mammogram images can capture it from 5 mm in diameter. However, these images were to be determined by an expert radiologist who is familiar with breast cancer. Generally, there are 2 types of breast cancer which are in situ and invasive. In situ starts in the milk duct and does not spread to other organs even if it grows. Invasive breast cancer on the contrary, is very aggressive and spreads to other nearby organs and destroys them as well. 

Monday 24 October 2016

A Review on New Horizons of Bioinformatics in Next Generation Sequencing, Viral and Cancer Genomics

Genomics and molecular biology has always been a constant source of inspiration and motivational research for worldwide researchers in field of biology and biotechnology. These two fields have always generated a huge amount of data and in order to compile and analyse those, bioinformatics came into action during last decade. Implementation of bioinformatics has a clear intention of doing all these analysis of data in efficient and fast manner in order to cut down the expensive laboratory equipment, chemicals and most precious time.

Bioinformatics in Next Generation
Mostly genomic data is composed of sequencing results at a higher scale and that is why manual curating and handling of these data is quite difficult. Supreme aim of this review is to make awareness about bioinformatics options in cancer genomics and viral genomics apart from next generation sequencing. Next generation sequencing or high throughput sequencing has helped a lot to replace old conventional method of sequencing and with the help of recent advances in technologies. 

Friday 21 October 2016

Check this man made wonder device for treating Intractable Brain Disorders

Bioengineered Cranial Bones

Many neurological and psychiatric disorders with predominantly cerebral cortical pathology, including most severe strokes, traumatic brain injuries, malignant brain tumors, intractable focal epilepsies and dementias such as Alzheimer’s disease are currently difficult, if not impossible, to treat. This causes suffering in almost 100 million people worldwide. 

We propose that bioengineered cranial bones with multiple intelligent functions, including site specific Tran’s meningeal drug delivery and neurotoxin drainage with EEG feedback, can provide effective treatment of these brain disorders by drug combinations that act on both synapses and genes with concomitant selective drainage of harmful extracellular molecules. 

Thursday 20 October 2016

Drug delivery potential of hydrogels having α-amino acid residues

Stimuli-Responsive Hydrogels

Stimuli-Responsive Hydrogels such as Vinyl hydrogels bearing α-amino acid residues are  Potential vehicles for the drug delivery systems especially cisplatin, pilocarpine, doxorubicin, citalopram, trazodone, paroxetine etc. These gels not only transport the drug to the target site but also preserve the structure and function of drug.

Monday 17 October 2016

Selenoergothionein as a Potential Inhibitor against Amyloid β-Protein (Aβ): Docking and Molecular Dynamics Studies

Alzheimer‘s disease (AD) is a progressive neurodegenerative disorder, encircling the deterioration of cognitive functions and behavioral changes, characterized by the aggregation of amyloid β-protein (Aβ) into fibrillar amyloid plaques in elected areas of the brain with the lipid-carrier protein apolipoprotein E (apoE), the microtubule associated protein tau, and the presynaptic protein α-synuclein. 

Amyloid β-Protein
High levels of fibrillary Aβ, the main constituent of senile plaques, are deposited in the AD brain that outcome in the thrashing of synapses, neurons and destruction of neuronal role. Aβ is derived from the amyloid precursor protein through sequential protein cleavage by as partylprotease, β-secretase and presenilin-dependent β-secretase triggering a spill of events such as oxidative damage, neurotoxicity, and inflammation that contributes to the progression of AD. Therefore the Aβ protein may be a target for anti-Alzheimer drugs. Aβ proteinwas retrieved from the Protein data bankand energy minimized and subjectedto molecular dynamic simulations using NAMD 2.9 software with CHARMM27 force field in water. 

Friday 14 October 2016

A Review on New Horizons of Bioinformatics in Next Generation Sequencing, Viral and Cancer Genomics

Genomics and molecular biology has always been a constant source of inspiration and motivational research for worldwide researchers in field of biology and biotechnology. These two fields have always generated a huge amount of data and in order to compile and analyze those, bioinformatics came into action during last decade. 

Viral and Cancer Genomics
Implementation of bioinformatics has a clear intention of doing all these analysis of data in efficient and fast manner in order to cut down the expensive laboratory equipment, chemicals and most precious time. Mostly genomic data is composed of sequencing results at a higher scale and that is why manual curating and handling of these data is quite difficult. Supreme aim of this review is to make awareness about bioinformatics options in cancer genomics and viral genomics apart from next generation sequencing. 

Thursday 13 October 2016

DNA/RNA Fragmentation and Cytolysis in Human Cancer Cells Treated with Diphthamide Nano Particles Derivatives

Molecular structure activity studies for some Diphthamide Nano particles derivatives indicate that the conformational characteristics along with the nature and position of the substituents on the Diphthamide Nano particles derivatives ring play an important role in their biological and biochemical activities (Figure 1). Therefore, we have calculated the optimized molecular geometries of some Diphthamide Nano particles derivatives. 

DNARNA Fragmentation
Calculations are carried out on the structures of these medical, medicinal and pharmaceutical Nano drugs using Hartree–Fock calculations and also Density Functional Theory (DFT) by performing HF, PM3, MM2, MM3, AM1, MP2, MP3, MP4, CCSD, CCSD(T), LDA, BVWN, BLYP and B3LYP levels of theory using the standard 31G, 6–31G*, 6–31+G*, 6–31G(3df, 3pd), 6–311G, 6–311G* and 6–311+G* basis sets of the Gaussian 09. The comparative heats of formation and Natural Bond Orbital(NBO) charges are calculated for these Diphthamide Nano particles derivatives. We have finally obtained some conformational rules in terms of the natures and positions of the substituents on the Diphthamide Nano particles derivatives ring.

Wednesday 12 October 2016

Meta-Analysis of Genomic Data: Between Strengths, Weaknesses and New Perspective

The rapid advances in high-throughput technologies, such as microarrays have revolutionizing the knowledge and understanding of biological systems and genetic signatures of human diseases. This has led to the generation and accumulation of a large amount of genomic data that need to beadequately integrated to obtain more reliable and valid results than those from individual experiments. Meta-analysis of microarray data is one of the most common statistical techniques used for combining multiple data sets. 

Meta-Analysis of Genomic Data
Despite its remarkable successes in discovering molecular subtypes, underlying pathways and biomarkers for the pathological process of interest, this method possesses several limitations. Here, we provided a briefly overview of current meta-analytic approaches together with the basic critical issues in performing meta-analysis of genomic data, with the aim of helping researchers to evaluate the quality of existing, published data and obtain more detailed information on what will be the best strategy to adopt to execute a good meta-analysis.

Friday 7 October 2016

Human Organoid models may boost the drug discovery & Development

Drug discovery is an expensive affair that involves millions of dollars. Despite intensified researches, only one out of 10,000 drugs enters the market after successfully completing series of regulatory measures.

Salvage Test-Animals
The main reasons for the low rate of success in the drug discovery include our inability produce the human tissue for research.  Test models like flat surface cell-culture, virtual computational methods and small animals are unable to replace the human culture. Recent developments and advancements in the drug research in the form of Organoid culture is offering new hopes for the drug discovery as there is scope for using artificial human tissue models in the place of animal models. There are proposals to create human Organoid models for in vitro testing, which are expected to add significance to the drug research.

Thursday 6 October 2016

Application of software tools in the development of novel drug for Breast Cancer

novel drug for Breast Cancer
The DNA methylation, in human cells regulates tumor growth and it also indicates the breast cancer susceptibility. In a research they pinpointed the genes that are involved invariations that occur in methylationof the breast cancer epigenome. The DNA methylation(CG sites)sequences from 7-normal individuals and 8-breast cancer patients were compared by using Statistical software package R and by Upperone-tailed chi-square tests. Consensus Path Database is used to map selected CG sites to study the biological relations between healthy individuals with patients affected by tumour. Based on the data collected from PubMed and Gene Card, 26 potential biomarker genes were discovered. All these data helps in the development of novel treatments for breast cancers.