237 results
Pressor area
1a
Neuronal
Sympathetic
tonus t
Vessel stretch
Myogenic reaction
2a local
Port
Endothelin-1 1 (ETA)
PGF2a,
thromboxane
Constriction
ADH (V1),
epinephrine (a1), angiotensin lI
За
Hormonal
1b
Neuronal
Sympathetic tonus
Dilation
Parasympathetic system (salivary glands,
stretch Myogenic reaction ... Bradykinin, 4 kallidin ... Acetylcholine (M), АТР, #histamine
Basophilia - Differential Diagnosis Framework

Basophils < 1% of the total white blood cell count
Basophils function similarly
cells- contain histamine ... during an allergic reaction ... Or Inflammatory Reactions
Sleep
Regulation of sleep is critical for life! Ever wonder why you can’t fall asleep while hungry
hungry or why anti-histamines ... #Sleep #anti-histamine
Drug-Induced Edema
Drug-induced edema is caused by many drugs & can coincide with or worsen pre-existing peripheral
which include: - Bradykinin ... permeability) - Histamine
Angioedema - Classification Diagnosis and Treatment
Types of Angioedema:
 • Acute allergic angioedema - Usually occurs with
Non-allergic drug reaction ... • Bradykinin ... angioedema • Bradykinin-mediated
Summary table of types of hypersensitivity reactions. 
Type 1
 - Mediators: lgE
 - Antigen Form: Soluble
hypersensitivity reactions ... degranulation releasing histamine ... Acute transfusion reaction ... hypersensitivity #reactions
Pathophysiology of ACE inhibitor-induced angioedema: Angioedema is a vascular reaction associated with tissue (subcutaneous, submucosal) edema
is a vascular reaction ... angioedema are bradykinin ... Allergy #Kininogen #Bradykinin
There are 2 Major Types of Angioedema:
 - Mast cell / histamine mediated – usually presents
- Mast cell / histamine ... hypotension) - Bradykinin ... Classification #Types #Bradykinin
Anaphylaxis: Pathogenesis
Anaphylaxis is a Type 1 hypersensitivity reaction
While the primary mechanism of anaphylaxis is mast cell
hypersensitivity reaction ... mediators => • Histamine
Effects of H1 Antihistamines at Histamine, Adrenergic, Cholinergic, and Serotonin-Binding Receptors
Cholinergic - Incr Dry mouth, Incr
Antihistamines at Histamine ... Incr Appetite Histamine