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Mercaptan Known effects:

Alteration in collagen metabolism

Pooling of Type 1 procollagens

Suppression of DNA synthesis

Reduction in Proline Transport (an amino acid discovered in 1910. it is a major constituent of collagen)

Depresses hepatic cytochrome oxidase hepatic splenic and erythrocyte oxidase activity

Hepatic Coma

Inhibits Na+, K+ ATPase activity

Decrease in body weight

Hydrogen Sulphide known effects:

CNS is major target organ

Reduction in respiratory rate

Alters neurotransmitters

Blood glucose elevated in pregnancy

Behavioral and Structural abnormalities

Developing neurons at risk of severe deficit

Increase in hippocampal theta activity

Cumulative changes in hippocampal function

Rapid suppression of breathing

Seratonin levels increased

Norepinephrine reduced

K+- chanel-mediated hyperpolarisation of neurons

Potentiation of other inhibitory mechanisms

Anoxia

Clinical impairment of cognition

Changes in pulmonary function

Olefactory paralysis

neurophysiological abnormalities

Visual recall is impaired


These compounds are all toxic to mammalian enzymes if present in large enough quantities.