Topic: Biology

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Antifertility Effects of Aqueous Extract of Phyllanthus Niruri in Male Albino Rats

September 26, 2011 - 2193 words | Biochemistry » Fertility

The effects of aqueous extract of P.niruri on epididymal sperm characteristics, fructose and testosterone levels in male albino rats were investigated. The treatment of the extract for 14 days resulted in appreciable decrease in the fructose level of the seminal fluid... Read Article »

Keywords:

Fertility Phyllanthus Niruri Sperm Characteristics Testosterone Fructose

Hawaiian Biodiversity Loss Driven by Feral Ungulates

February 16, 2011 - 3070 words | Biology » Conservation

The activity of feral ungulates such as pigs, goats, and deer has resulted in extensive biodiversity loss in Hawaii. These animals were introduced by the Polynesians as domesticated livestock, and now play a destructive role in the local ecosystem. Ungulate populations... Read Article »

Keywords:

Hawaii Conservation Biodiversity Ungulates Over Grazing

Botulinum Toxins: Bad Bug or Miracle Medicine?

November 16, 2010 - 1463 words | Biochemistry » Botulism

Botulinum toxin is widely known for causing a type of food poisoning known as botulism. According to the Center for Disease Control, botulism is a rare but serious paralytic illness caused by the bacterium Clostridium botulinum (Center for Disease Control, 2008). Three... Read Article »

Keywords:

Botulism Botulinum Toxin Biological Warfare BoTox Miracle Medicine

Neuropsychological and Behavioural Aspects of Huntington's Disease

March 12, 2010 - 3475 words | Psychology » Huntington's Diesease

George Huntington first described Huntington’s disease (HD) in 1872 as being a hereditary chorea, “an heirloom fortunately being confined to just a few families but known to exist as a horror” (Neylan, 2003). This disorder of the basal ganglia is... Read Article »

Keywords:

Psychology Huntington's Disease Basal Ganglia FMRI Psychiatric Symptoms Cognitive Deficits

Using Stem Cell and Gene Therapy Technologies to Treat Parkinson's Disease

March 10, 2010 - 3883 words | Biology » Parkinson's Disease

Parkinson’s disease (PD), a progressive neurodegerative disorder most prevalent in the elderly and for which there is currently no cure, selectively targets nigrostriatal Dopaminergic (DAergic) projection neurons in the substantia nigra pars compacta (SNpc),... Read Article »

Keywords:

Parkinson's Disease Gene Therapy Neurogeneis Cell Replacement Therapy GDNF Stem Cell Technology Stem Cells

Mitochondria (the Powerhouses of our Cells) and Brain Disease

March 5, 2010 - 1531 words | Biology » Neuroscience

Mitochondria are eukaryotic, membrane-enclosed, 1-10um sized organelles, described as “cellular power plants” as they are responsible for the production of adenosine triphosphate (ATP) and oxidative phosporylation. Signal transduction (buffering and storage... Read Article »

Keywords:

Mitochondria Neurological Disorders Alzhiemer's Disease (AD) B-amyloid Phosporylation Brain Disease

Recent Advances in Neural Stem Cell Research: How Stem Cells in the Brain Are Altered by a Changing Environment

March 4, 2010 - 2805 words | Biology » Neuroscience

The discovery of adult neurogenesis (the endogenous production of new neurons) in the mammalian brain more than 40 years ago (Malcolm R. Alison, 2002) has resulted in a wealth of knowledge of this branch of neuroscience. Today we know that the continuous production... Read Article »

Keywords:

Stem Cells Neurogenesis Neurodegenerative Disease Neuronal Replacement Neuronal Precursors Hippocampal Neurogenesis Neuroscience

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