Biochem Case Connections Assignment | Online Assignment

or the Unit 3 Case Connections assignment, you will choose two of the following three case connection problems and provide detailed written solutions. This assignment is submitted through SafeAssign, which is a plagiarism prevention tool that allows your instructor to check the originality of a homework submission. To earn full credit: You will need to describe why your chosen answer is correct while also discussing why the other answers are incorrect. References in AMA format are also required. Do not include the questions provided as part of your submission. If your assignment has a SafeAssign score of >50% your instructor may request that you resubmit your assignment or justify this level of percentage overlap. Scores of >50% raise concern over academic integrity. Your assignment will be graded on your logic and accuracy as well as on the clarity and organization of the overall assignmentUNE Online _ Case connections
Unit 3 Cases
Case connections are short scenarios or puzzles based on the information from the current unit
of study.
For the Unit 3 Case Connections assignment, you will choose two of the following three case
connection problems and provide detailed written solutions. This assignment is submitted
through SafeAssign, which is a plagiarism prevention tool that allows your instructor to check
the originality of a homework submission.
To earn full credit:
1. You will need to describe why your chosen answer is correct while also discussing why
the other answers are incorrect.
2. References in AMA format are also required.
3. Do not include the questions provided as part of your submission.
4. If your assignment has a SafeAssign score of >50% your instructor may request that you
resubmit your assignment or justify this level of percentage overlap. Scores of >50%
raise concern over academic integrity.
Your assignment will be graded on your logic and accuracy as well as on the clarity and
organization of the overall assignment.
Submit your written assignment via the digital drop box.
Case 1:
Upon presentation: An 18-month-old female arrives by ambulance at the emergency department. The
paramedics report that there was no known history of any recent trauma, and no known fever,
vomiting, or other unusual behavior. There were no known ingestions or medications in the household.
There was no evidence of trauma.
Interview and History: At 9 PM the previous night, Ella was described by her mother as appearing more
quiet than usual. They had spent the day traveling from the grandmother’s house and Ella had been
carsick so had not eaten very much during the day. When they got home, Ella had some water and went
to bed. Ella slept longer than usual and was found unresponsive by her mother at 9 AM. At this time her
mother called 911.
Follow-up tests:
1) Blood glucose: 23 mg/dL (normal range 90 – 125 mg/dL)
2) Repeat blood glucose: 50 mg/dL following administration of glucagon
3) Urinary acids: Markedly elevated levels of glutaric, ethylmalonic, and dicarboxylic acids; ketones
absent
4) Serum free fatty acids: 0.84mmol/L (normal range: 0.00-0.72 mmol/L)
UNE Online _ Case connections
Treatment:
She was transferred to the pediatric intensive care unit and remained comatose for 16 hours. Blood
glucose levels remained stable with a continuous infusion of dextrose . Inpatient treatment consisted
primarily of glucose supplementation and supportive care.
Questions:
In this individual, at the time of presentation, what is the relative ratios of the following hormones:
insulin epinephrine
glucagon cortisol
Based on the data presented above. This individual most likely has a primary deficiency in which of the
following pathways. Please describe why you choose a specific pathway and why you DID NOT choose
other pathways.
a. Glycogenolysis
b. Gluconeogenesis
c. Lipolysis
d. Glycogen synthesis
e. Glycolysis
f. Ketogenesis
g. β -oxidation
h. Protein catabolism
Based on your choice above, would the use of carnitine supplementation be of any benefit to your
patient? (Review the role of carnitine!)
Case 2:
A 53-year-old male with past medical history of obesity (BMI of 38 kg/m 2 ) and borderline diabetes
presents to you with abnormal liver enzymes (ALT/AST) discovered 6 months ago. His family history is
significant for liver cirrhosis. On physical examination you notice mild hepatomegaly (enlarged liver).
A panel of lab tests revealed the following: aspartate aminotransferase (AST) 106 (normal range 10 – 40
U/L), alanine aminotransferase (ALT) 118 (normal range 7 – 56 U/L), with normal bilirubin (generated
from the breakdown of hemoglobin). He had a liver ultrasonography that showed diffuse increase in
echogenicity and vascular blurring consistent with fatty infiltration. You suspect nonalcoholic fatty liver
disease (NAFLD).
Under normal conditions, describe the metabolism and maturation of VLDL particles.
Describe how NAFLD could manifest and what potential processes could be impaired in order for this
disease process to occur (consider both enzymatic and hormonal impairments).
UNE Online _ Case connections
Case 3:
A 20-year old, female presents to the dermatologist with complaints of multiple, small to large (2 mm to
3 cm) soft, asymptomatic yellow colored nodular lesions all over the body since the age of 2 years. She
was subsequently referred for biochemical investigations, where an altered lipid profile was noticed.
A detailed history from the parents revealed that the patient developed the swellings since the age of
2 years, which gradually increased to the present size. At the age of 3 years, patient was treated by a
local doctor but the symptoms did not subside. There is no history of chest pain, breathlessness,
hypertension, diabetes mellitus, or any other chronic illness.
Family history : Maternal side shows history of sudden deaths at a young age (36–44 years) (Mother’s
elder brother and all his 3 sons have died at an early age due to possible myocardial infarction).
Lipid profile of the patient:
Total cholesterol (mg/dl) 580
Triglycerides (mg/dl) 134
LDL (mg/dl) 460
HDL (mg/dl) 93
VLDL (mg/dl) 27
LDL/HDL ratio 4.94
Please describe a potential underlying mechanism for the elevated cholesterol levels found in this
individual.
Triglycerides are within normal values in this individual. Describe how triglyceride levels would be
normal but cholesterol levels could be elevated in this individual.