Every Night Flashcards

1
Q

CpGs

A

Methylated to silence transcription

Low transcriptional activity

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2
Q

Fetal umbilical vein to IVC

A

Via ductus venosus

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3
Q

Circadian rhythm disorder

A

Insomnia or excessive sleepiness due to altered sleep wake schedule

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4
Q

Reactive arthritis

A

HLA B27
After GU infection

Conjunctivitis
Back pain
Mono arthritis

Deposition of immune complexes

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5
Q

Coeliac disease

A

Atrophy of intestinal villi

Dermatitis herpetiform

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6
Q

DiGeorge syndrome

A

Truncus arteriosus

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7
Q

Hyper IgM syndrome

A

Defect in CD40L or CD40

No IgG, A or E

Recurrent sinopulmonary GI opportunistic infections

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8
Q

Cardiac hypertrophy

A

Increased rate of myosin mRNA synthesis

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9
Q

Tetracycline
Aminoglycosides
blocks

A

30S subunit

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10
Q

Erythromycin and chloramphenicol block

A

50S subunit

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11
Q

Anion gap = sodium - (chloride +bicarbonate)

A

Normal = 10-14

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12
Q

Flank pain hematuria oliguria metabolic acidosis

A

Ethylene glycol poisoning
Calcium oxalate crystals

MUDPILES

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13
Q

Vitamin D increases absorption of

A

Calcium and phosphate

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14
Q

Leuprolide decreases LH release from ant pituitary

A

If continuous

Decreased testosterone production from leydig cells

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15
Q

Varicoceles regress with

A

Lying down

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16
Q

Thermal cycling PCR

A

Heating for DNA strand denaturation
Cooling for primer hybridisation
Rewarming for primer extension and DNA synthesis

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17
Q

FSGS

A

HIV

Collapsing glomerulonephropathy

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18
Q

Transformation

A

Bacteria take up naked foreign DNA

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19
Q

Prader Willi syndrome

A

BOTH 15s FROM MOTHER

LOSS of paternal alleles

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20
Q

PCOD

A

Increased testosterone

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21
Q

Maxillary sinuses drain into

A

Middle nasal meatus

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22
Q

Hepatosplenomegaly
Pancytopenia
Bone pain osteopenia

Wrinkled tissue paper macrophage

A

Gaucher

Def of B glucocerebrosidase

Glucocerebrosidase

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23
Q

Angiokeratomas
Peripheral neuropathy
Glomerulopathy

A

Fabry XLR

Def of a-galactiosidase

Globotriaosylceramide

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24
Q

Macular cherry red spot

Progressive neuro Degeneration

A

Tay Sachs

Def of B hexosaminidase A

GM2 ganglioside

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25
Macular cherry red spot Neuro degeneration HEPATOSPLENOMEGALY
Niemann Pick Def of sphingomyelinase Sphingomyelin
26
Progressive neurodegeneration Peripheral neuropathy Optic atrophy
Krabbe Def of galactocerebrosidase Galactocerebrosidase Psychosine
27
Progressive neuro Degeneration | Peripheral neuropathy
Metachromatic leukodystrophy Def of arylsulfatase A Cerebroside sulfate
28
Transcription factors causes
Cell differentiation And Dedifferentiation
29
I band lengthens during
Muscle relaxation
30
Afterload in skeletal muscle is force against which muscle fibre must contract Contraction velocity increases when
Afterload is decreased Preload - initial muscle fibre length prior to contraction
31
Pilocarpine can ?
Constrict the denervated eye
32
Vasoconstriction and tachycardia Sympathetic response Epi/ norepinephrine—> a1
Phosphatidylinositol 2nd messenger Gq Phospholipase C IP3 DAG Ca PKC SMOOTH MUSCLE CONTRACTION
33
Pernicious anaemia
Autoimmune destruction of gastric mucosa Decreased gastric acid Increase in gastrin No IF —> B12 def, peripheral neuropathy
34
NERD or aspirin exacerbated resp disease Asthma, nasal polyps and chronic rhinosinusitis Aspirin blocks COX, more
Leukotrienes formed Tx montelukast Leuko-receptor antagonist Zileuton 5-lipo inhibitors
35
Chiari malformation
Teens Occipital headaches Cerebellar dysfunction Worse with Valsalva Tonsillar herniation through foramen magnum
36
Osteoarthritis
Degradation of type || collagen and proteoglycans in articulation cartilage
37
CFTR has tissue specific functions
Sweat glands mutations prevents salt reabsorption high sodium and chloride Resp mutations cause thick viscid secretions low in sodium and chloride
38
Asthma tx Anti leukotriene meds Montelukast zafirlukast
Block cysteinyl leukotriene receptors
39
Cisplatin SE
Tinnitus | Hearing loss
40
ELISA steps Known antigen fixed to well Patient serum added Anti human IgG antibody couple to per oxidase Finally
Substrate w colour change added
41
Pseudohypoparathyroidism Albright hereditary osteodystrophy
End organ resistance to PTH Hypocalcemia Hyperphosphatemia Short metacarpal and metatarsal bones GNAS1 If paternally Inherited = pseudopseudo Defects but normal labs
42
Fragile germinal matrix in premies =
IVH | bulging fontanelle
43
Glucagon receptor
Gs AC cAMP
44
Epinephrine receptor
Gs B2 AC cAMP
45
Insulin receptor
Receptor tyrosine kinase Phosphoinositide 3-kinase
46
Round ligament
Goes through inguinal canal to labia majora
47
RNA splicing forms loops in DNA because
The complimentary mRNA introns have been spliced out post transcription
48
``` Absent uterus and upper vagina Cryptorchid testes Minimal pubic hair Breast development estradiol 46 XY ```
Complete androgen insensitivity syndrome X linked mutation of androgen receptor
49
Absent uterus and upper vagina | Normal ovaries
46XX | Mullerian agenesis
50
Abnormal vagina Normal uterus and ovaries
Transverse vaginal septum Malformation of urogenital sinuses and Müllerian ducts 46XX
51
Maple syrup urine disease
Alpha ketoacid dehydrogenase needs B1 thiamine
52
A thalassemia minor
Mild microcytic anaemia
53
PE labs
Hypocapnia Resp alkalosis Increased pH Decreased PaCO2
54
DKA labs
Increased glucose and potassium | Decreased sodium
55
X linked agammaglobulinemia BTK
B cells can’t mature | CD19 positive cells missing
56
Short stature Midface hypoplasia Frontal bossing
FGFR3 gene
57
ABP needed to maintain testosterone levels in seminiferous tubules ABP produced by
Sertoli cells
58
Splenic vein has increased pressure in
Cirrhosis
59
Nitrates increase HR and decrease
ED LVV
60
Proteins going to RER possess hydrophobic N terminal peptide signal sequences
If removed they accumulate in the cytosol
61
TZD pioglitazone PPARy agonists increase transcription of insulin responsive genes like
GLUT4 Adiponectin
62
Viral meningitis
Picornavirus Enterovirus 90% Naked ss positive sense RNA virus
63
1 hit gain of function proto oncogenes
``` RAS MYC EGFR HER2 ABL BRAF ```
64
2 hit loss of function
``` BRCA1/2 APC TP53 RWT1 VHL ```
65
RAS
GTP binding protein Cholangiocarcinoma Pancreatic adenocarcinoma
66
MYC
Transcription factor Burkitt lymphoma
67
EGFR
Receptor tyrosine kinase Lung adenocarcinoma
68
HER2
Receptor tyrosine kinase
69
ABL
Nonreceptor tyrosine kinase CML
70
BRAF
RAS signal transduction Hairy cell leukaemia Melanoma
71
APC
Wnt signalling pathway
72
RB
G1/S transition inhibitor
73
WT1
Urogenital differentiation Wilms tumour
74
VHL
Ubiquitin ligase component VHL RCC
75
Haploid Inner and outer membrane Absent nuclear membrane
E. coli
76
Acute bacterial prostatitis
Dysuria fever ect
77
Crohns
Abscess | Terminal ileum
78
IPAH
Pulmonary endothelial dysfunction
79
Hashimotos
Germinal centres
80
Achalasia
Inflammation and Degeneration of neurons in esophageal walls
81
Broca’s area
Agrammatic speech
82
ASD
Fixed splitting of S2
83
CYP450 inhibitors Increase warfarin effect and bleeding risk
``` NSAIDs Antibiotics antifungals Amiodarone Cimetidine Cranberry juice Gingko vitE Omeprazole Thyroid hormone SSRIs ```
84
CYP450 inducers Decrease warfarin effect And efficacy
``` Carbamazepine phenytoin Ginseng St Johns wort OCP Phenobarbital Rifampin ```
85
Dilated aorta
L recurrent laryngeal nerve hoarseness | Post cricoarytenoid muscle dysfunction
86
Invariant chain removed during antigen processing in macrophages
MHC peptide complex A chain B chain External protein expressed
87
Hypoglycaemia after prolonged fasting and v low ketone bodies
Impaired B oxidation Medium chain acyl-CoA dehydrogenase deficiency
88
Autonomic postganglionic nerve
Unmyelinated Group C