Function and dysfunction of plasma cells in intestine.

As the main player in humoral immunity, antibodies play indispensable roles in the body's immune system. Plasma cells (PCs), as antibody factories, are important contributors to humoral immunity. PCs, recognized by their unique marker CD138, are always discovered in the medullary cords of spleen and lymph nodes and in bone marrow and mucosal lymphoid tissue.

Functional macrophages and gastrointestinal disorders.

Macrophages (MΦ) differentiate from blood monocytes and participate in innate and adaptive immunity. Because of their abilities to recognize pathogens and activate bactericidal activities, MΦ are always discovered at the site of immune defense. MΦ in the intestine are unique, such that in the healthy intestine, they possess complex mechanisms to protect the gut from inflammation.

Evaluation of the simplified therapeutic intervention scoring system: Chinese version.

Objective: To prepare the Simplified Therapeutic Intervention Scoring System (TISS-28) to measure nursing workload in Intensive Care Units in Guangdong Province of China.

Methods: A non-experimental descriptive study was conducted in the intensive care units in the Province. TISS-28, TISS-76, Acute Physiology and Chronic Health Evaluation (APACHE II) were all measured.

The distinguishing cellular features of pulmonary artery smooth muscle cells from chronic thromboembolic pulmonary hypertension patients.

In chronic thromboembolic pulmonary hypertension (CTEPH), central thrombi are the most likely disease initiators, and progressive pulmonary vascular remodeling, which is characterized by marked proliferation of pulmonary artery smooth muscle cells (PASMCs), may also contribute to the long-term progression of CTEPH. This study was designed to investigate the cellular characteristics of PASMCs isolated from the organized thrombotic tissues of CTEPH. In the present study, analysis of PASMCs isolated from five CTEPH patients and three control subjects showed that cells from CTEPH patients had certain characteristics that distinguished them from control cells, including inferior or no cell-cell contact inhibition growth, increased sensitivity to hypoxia-induced proliferation, resistance to serum starvation-induced apoptosis, and mitochondrial metabolism disorder.

Inhibition of SOC/Ca2+/NFAT pathway is involved in the anti-proliferative effect of sildenafil on pulmonary artery smooth muscle cells.

Background: Sildenafil, a potent phosphodiesterase type 5 (PDE5) inhibitor, has been proposed as a treatment for pulmonary arterial hypertension (PAH). The mechanism of its anti-proliferative effect on pulmonary artery smooth muscle cells (PASMC) is unclear. Nuclear translocation of nuclear factor of activated T-cells (NFAT) is thought to be involved in PASMC proliferation and PAH.

Functional expression of transient receptor potential vanilloid-related channels in chronically hypoxic human pulmonary arterial smooth muscle cells.

Transient receptor potential vanilloid (TRPV) channels are nonselective cation channels pertinent to diverse physiological functions. Multiple TRPV channel subtypes have been identified in different tissues and cloned. The aim of this study was to investigate the role of TRPV channels in hypoxia-induced proliferation of human pulmonary artery smooth muscle cells (PASMCs) and its possible signal pathway.

[Comparison of retaining or removing negative vertical coma in wavefront guided LASIK for myopia and astigmatism].

Objective: To investigate the efficacy and safety of wavefront guided (WG) LASIK for the myopia and astigmatism.

Methods: This study is a randomized control trial. 42 cases (78 eyes) were collected in the study through the routine examinations and wavefront analysis, which were divided into two groups (A and B).