Abstract: Disclosed are an air intake mechanism and a negative pressure system. The air intake mechanism includes a first air intake end, a first air outlet end, and a first passage provided between the first air intake end and the first air outlet end, a first air driving unit is provided on the first passage, a first filter assembly is provided between the first air intake end and the first air driving unit, and a second filter assembly is provided between the first air outlet end and the first air driving unit.

Abstract: Disclosed are a hermetic tarpaulin device and a nursing room. The hermetic tarpaulin device includes a frame and a tarpaulin body. The frame can be unfolded or folded into a predetermined shape. The tarpaulin body can be connected to the frame. When the frame is unfolded, the tarpaulin body is unfolded to form a hermetic space completely isolated from an outside world, and when the frame is folded, the tarpaulin body is folded into a whole. The tarpaulin body can be unfolded with the frame to form a hermetic space completely isolated from the outside world, which can achieve complete isolation from the outside world, thereby improving the isolation effect, and the nursing room can be more convenient to build, and can also reduce the cost and reduce the occupied space.

Abstract: Disclosed is an air conditioning device, including a telescopic main structure, a ventilation air conditioning assembly and a control assembly, the ventilation air conditioning assembly is installed on the main structure, the main structure is configured to form a hermetic space inside it, and is configured to stretch or fold the hermetic space. The ventilation air conditioning assembly is configured to form a differential pressure environment in the hermetic space, the control assembly can be used to control the main structure to stretch or fold, and control the ventilation air conditioning assembly to adjust an air pressure, a temperature and a humidity in the hermetic space.

Abstract: A method of treating a subject, in particular a human, suffering from an autoimmune disease, preferably but not exclusively selected from systemic lupus erythematosus, multiple sclerosis or rheumatoid arthritis includes the step of administering an effective amount of a limonoid to the subject. The present invention further relates to methods of inhibiting the differentiation of T helper 17 cells, T helper 1 cells, T helper 2 cells and/or regulatory T cells and a method of screening substances for their inhibition of one or more of T helper 17 cell, T helper 1 cell, T helper 2 cell and/or regulatory T cell differentiation that may be used to treat an autoimmune disease. This invention provides highly advantageous and promising treatment options for autoimmune diseases, namely for attenuating inflammatory lymphocyte function.

Abstract: The present invention relates to methods of using 3?,4?-aromatic acyloxy substituted 7,8-pyranocoumarins compounds in reversing P-glycoprotein overexpression mediated multidrug resistance in cancer cells including uses in treating cancers.

Abstract: The present invention relates to compounds, compositions for use in reversing multidrug resistance in cancer cells, process for the preparation thereof and their uses in treating cancers. More particularly, the present invention relates to 3?,4?-aromatic acyloxy substituted 7,8-pyranocoumarins compounds for use in reversing P-glycoprotein overexpression mediated multidrug resistance in cancer cells, pyranocoumarins containing compositions, process for the preparation thereof and their uses in treating cancers.