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Research Paper
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Topic:

Clostridium Botulinum: Molecular Mechanism and the Level of Virulence

Research Paper Instructions:

In the attached PDF only answer PART B. The guidelines for the paper are clearly given. Research both recent and older sources on the bacteria and remember to COMPARE and CONTRAST research over time. This is a research paper so write according to the level of a Biochemistry/Microbiology student.

BIOL3150 S2020 -  Assignment. To be done in pairs. Indicate who worked on which section.

Part A:

Discuss the Appelbaum and Caesarian questions (below) Devote One page maximum to each subject. Ensure that you properly reference. Remembner that you are commenting and supporting not simply summarizing a list of references on the topic. What is new? What issues are contentious? Etc. This is due on the 3rd of July. It must include up to date primary research. (3%) **Use this assignment to hone your writing and referencing skills that can be used on the larger assignment (Part B) below.

The pathogen assignment (12%) to be handed in on August 7th. This also should include up to date primary research and address a discussion - again not simply a brief description of references – tie them in to address a story or topic with pro and con aspects.  ABSOLUTELY NO EXTENSION FOR ANY REASON.

Research on a Pathogenic agent. You will choose one of the pathogens listed on Moodle (and accompanying excel sheet). This assignment will be done as groups of two. Your mark will be shared (same mark for each person) however indicate who worked on what part of the assignment in case there are questions of plagiarism.

The assignment cannot be longer than 4 pages (font 11 or 12; 1.5 or double spaced) not including pictures or your reference page. The subtopics for your assignment are listed below. You choose how much space you want to devote to each subtopic – different pathogens will have more information/interest in some areas and not in others. You can also add other subtopics that you find interesting and relevant. The focus is not identical for every pathogen. Remember – there will be contrasting information – I expect to see this addressed in your report.

Part A:

ü  The Applelbaum paper listed on your Moodle site (as Applebaum paper!) discusses the appearance and prevalence of VRSA. The Applelbaum article discusses only a few incidences of VRSA infections – but this paper was written in 2006. Use your research skills to find and describe new information on the prevalence and treatment of VRSA infections today.

ü  Babies delivered by Cesarean methods or those who were exposed to antibiotics in the womb may be more prone to diseases like Asthma and diabetes. Why? Remember – explore the molecular basis! Is this statement an uncontested fact?

Part B: Choose a pathogen and use the following as a guide to write your report.

ü  Molecular mechanism of Infection and level of virulence.

ü  Type and symptoms of disease(s) caused by the pathogen

ü  Relation to other members of the genus

ü  Is the pathogen classified as the same level in other countries?

ü  Most common environments. (Hospital? Community? Geography?)

ü  Description of any associated Epidemics, pandemics

ü  Spread and prevention

ü  Treatments and their molecular mechanisms. How likely would you be infected while working on patients as a Health Care worker?

ü  Are there current Clinical or Pre-Clinical trials currently being conducted that are testing therapies against your pathogen?

ü  Incidence and mechanism of Resistance. Are there any strategies to overcome the resistant species?

ü  Other topics of interest

The maximum number of groups choosing one particular pathogen = 3. Once 3 groups have chosen a particular pathogen, that topic will be closed. Remember – only one person per group sign up online! Your preliminary report will include all people in the group. Indicate who signed up online. This assignment is worth 15% (3% Part A + 12% Part B) of your final grade.

Research Paper Sample Content Preview:
Name
Institutional Affiliation
Course Code/Title
Instructor
Date
Clostridium Botulinum
* Molecular mechanism of Infection and level of virulence.
Clostridium botulinum (C. botulinum) and other Clostridium species secrete one of the deadliest and extremely potent botulinum neurotoxins (BoNT) that acts on soluble N-ethylmaleimide-sensitive fusion protein attachment receptors (SNAREs) located in the neuronal cells to cause a food-borne illness known as botulism (Binz, Sikora & Mahrhold 665). Binz et al (666) identify the toxins to comprise of a tetanus neurotoxin and other seven distinct BTs. Mackle, Halcomb, and Parr (297) implicate serotype A, B, or E as culprits of human botulism while Woudstra et al (3120) note that botulism is caused by BoNT of subtypes A to G. BoNT typically binds to the cell surface receptors and the receptor-BoNT complex is translocated into an intracellular vesicle via receptor-mediated endocytosis. The proteolytic cleavage of SNAREs in the cytosol, which participates in neuroexoytosis, results in the inhibition of acetylcholine release at the synapse.
* Type and symptoms of the disease(s) caused by the pathogen
The pathogen is responsible for the food-borne illness, botulism, which manifests as cranial nerve palsies and flaccid muscle paralysis and is known as an important health issue with high rates of mortality (Rafie et al., 2017). The disease was first described in 1820 following hundreds of reported cases of “sausage poisoning” in a southern town in German (Palma et al., 2019). Earlier publications classify these manifestations into initial symptoms, cranial nerve abnormalities, dysfunction in the autonomic never system, and sensory disturbance (Mackle, Halcomb & Parr, 298).
* Relation to other members of the genus
The pathogen belongs to the genus Clostridium, which comprises of members of obligate anaerobes in the bacterial phylum, Firmicutes with a Gram-positive cell wall structure (Cruz-Morales et al., 2035). The genus is known to cause several deadly illnesses including tetanus and botulism in both animals and humans. While C. botulinum produces BoNT A to F, C. baratii, C. butyricum, and C. argentinense produce BoNT F, E, and G respectively (Woudstra et al., 3122).
* Is the pathogen classified at the same level in other countries?
The pathogen is classified as the same level in all countries worldwide as it is found to produce toxins, which when ingested even in small quantities, can cause poisoning in both animals and humans (Woudstra et al., 3122).
* Most common environments. (Hospital? Community? Geography?)
C. botulinum is a foodborne disease resulting from ingesting food contaminated with BoNT. The spores of the pathogen are commonly found in soil and sea and river water (Cruz-Morales et al. 2036). This makes the disease not a hospital-acquired (nosocomial) infection but an environmental disease.
* Description of any associated Epidemics, pandemics
There are several cases of reported epidemics due to C. botulinum globally. The first epidemic was reported in southern Germany in the 1820s where hundreds of patients presented with symptoms related to BoNT exposure after consuming sausages. Today, it is known that such epidemics...
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