Cellular Flashcards

1
Q

Tumor suppressors คืออะไร

A

Inhibit of G1-S progression

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2
Q

Drugs that act on microtubulesมีอะไรบ้าง?

A
  • Mebendazole (antihelminthic)
  • Griseoflavin (antifungal)
  • Colchicine (antigout)
  • Vincristin/Vinblastine (anticancer)
  • paclitaxel (anticancer)
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3
Q

Collagen มีกี่typeและต่างกันอย่างไร

A
4 types
Type I : most common-bone,skin,tendon
Type II : cartilage
Type III : reticulin-blood vessels
Type IV : basement membrane
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4
Q

Osteogenesis imperfectaคืออะไร

A
Genetic bone disorder(AD)
ลดproduction of type I collagen
ทำให้เกิด
-multiple fractures
-blue sclerae
-dental imperfections
-hearing loss
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5
Q

Ehlers-Danlos syndromeคืออะไร

A
Faulty collagen synthesis
ทำให้เกิด 
-hyperextensible skin
-hypermobile joint
-berry and aortic aneurysm
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6
Q

Elastinคืออะไร

A
  • Stretchy protein within skin, lungs, large arteries, elastic ligaments, vocal cord
  • broke down by elastase,which inhibited by alpha1-antitrypsin
  • changes with aging
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7
Q

Polymerase chain reaction คืออะไรมีกระบวนการอะไรบ้าง

A
  • used to amplify a desired fragment of DNA
  • มี3กระบวนการ
    1) denature:seperate the strands
    2) annealing:added DNA primer, polymerase, dNTPs
    3) elongation:replicate the sequence
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8
Q

Stable cell types คืออะไรและได้แก่เซลล์ใดบ้าง

A
  • enter G1 from G0 when stimulated

- hepatocyte, lymphocyte, PCT, periosteal cells

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9
Q

Collagen type IV defectiveพบในโรคใด

และอาการเป็นอย่างไร

A
  • Alport syndrome

- hematuria, proteinuria, hypertension, edema

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10
Q

Menkes diseaseเกิดจากอะไรและมีอาการอย่างไร

A
  • XR, impaired copper absorption due to defective Menkes protein
  • brittle hair, growth retardation, hypotonia
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11
Q

Kartagener syndromeเกิดได้อย่างไรและมีอาการอะไรบ้าง

A
  • AR, dynein arm defect

- infertility, bronchiectasis, sinusitis, situs inversus

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12
Q

Permanent cell types คืออะไรและได้แก่เซลล์ใดบ้าง

A
  • Remain in G0

- neuron, skeletal, cardiac muscle, RBCs

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13
Q

Labile cell types คืออะไรและได้แก่เซลล์ใดบ้าง

A

-Never go to G0
-bone marrow, gut epithelium, skin, hair follicle,
germ cell

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14
Q

Peroxisomal enzyme deficiency จะพบความผิดปกติของอะไร

A

Synthesis of bile acid

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15
Q

ปวดข้อเข่า, crepitus, bow legs คิดถึงโรคอะไรและเกิดจากสาเหตุใด

A
  • osteoarthritis

- increased proteoglycan degradation(ลดGAGs)

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16
Q

โครสร้างใดในblood-brain barrier ที่ขนส่งO2, CO2ได้ แต่ขนส่งH+, HCO3-ไม่ได้

A

Tight junction

17
Q

ฮอร์โมน catecholamine, prostaglandin, leukotriene ออกฤทธิ์ผ่านreceptorชนิดใด

A

G-protein

18
Q

ฮอร์โมน insulin, IGF-1, growth factorต่างๆ ออกฤทธิ์ผ่านreceptorชนิดใด

A

Tyrosine kinase

19
Q

ฮอร์โมนกลุ่ม steroid hormone, thyroxine ออกฤทธิ์ผ่านreceptorชนิดใด

A

Heat shock protein(transcription factor/nuclear receptor)