Managing tobacco black shank disease using biochar: direct toxicity and indirect ecological mechanisms.

Black shank disease in tobacco, caused by , can lead to yield losses of 30%-50% upon outbreak. Recently, biochar derived from agricultural waste has shown significant potential in controlling soil-borne diseases, though its mechanisms remain unclear. Over a 3-year observation period, we found that the incidence of black shank was significantly lower in plots amended with biochar compared with normal cultivation plots.

Potential risks of nicotine on the germination, growth, and nutritional properties of broad bean.

This study evaluated the allelopathy, uptake and accumulation, and potential agricultural and food safety risks of nicotine in broad bean (Vicia faba L.) during seed germination and seedling growth. Nicotine stress has an allelopathic inhibitory effect on seeds and a hormesis effect on germinated seeds and seedlings, which has an enhancement effect (<50 mg kg) and an inhibition effect (>100 mg kg) on the germinated seeds and an enhancement effect (<100 mg kg) and an inhibition effect (>200 mg kg) on the seedlings.

Inhibition of RANK/RANKL signal transduction pathway: a promising approach for osteoporosis treatment.

Osteoporosis is a bone disease causing impaired bone strength. It is characterized by increased osteoclast formation or enhanced bone resorption, leading to an increased risk of fragility fractures. Its prevalence increases with age.

Chinese literature associated with diagnosis of Helicobacter pylori.

Aim: To synthetically analyze and probe into the diagnosis of H pylori infection, we followed the principles of evidence-based medicine.

Methods: A total of 22 papers of prevalence survey and case-control studies were selected for studying about diadynamic methods. Using meta-analysis, we analyzed the different diadynamic methods of H pylori in China.