fragrant tobacco plant Woodland (Nicotiana sylvestris) seeds water and fertilizer Nicotiana rustica

However, in cancer cells, genetic mutations often lead to overexpression of these genes, significantly reducing the intracellular concentration of chemotherapeutic agents and rendering the cells unresponsive to treatment 15,16

One reason that we pay attention to khat consumption is that in the African region, khat is often consumed concurrently with tobacco

Coordination and standardization are central to scalability because herbal inputs vary by harvest, origin, and handling, while flavors and form factors (including roll-your-own formats) impose different moisture control, cut consistency, and packing requirements

Smoking history was also self-reported and not objectively affirmed