Pulmonary artery choriocarcinoma mimicking pulmonary thromboembolism: a case report.

Background: Primary choriocarcinoma of the pulmonary artery is an exceedingly rare malignant neoplasm, which is often misdiagnosed due to its nonspecific clinical presentation. While this condition is characterized by the presence of trophoblastic cells, typically associated with gestational trophoblastic diseases, we encountered a case occurring in an extragenital location. The rarity of such tumors makes it challenging for clinicians to consider them in differential diagnosis, especially when the initial symptoms mimic more common conditions such as pulmonary thromboembolism (PTE).

Clinical analysis of hospital acquired mycoplasma pneumoniae infection after cardiac surgery: a case series.

Background: (MP) is a common pathogen of community-acquired respiratory infections. The clinical characteristics hospital-acquired MP infections are rarely reported in the literature. Our ward is mainly responsible for the management of patients during the perioperative period of cardiac surgery.

Myostatin is involved in skeletal muscle dysfunction in chronic obstructive pulmonary disease via Drp-1 mediated abnormal mitochondrial division.

Background: Skeletal muscle dysfunction (SMD) is one of the most prominent extrapulmonary effects of chronic obstructive pulmonary disease (COPD). Myostatin negatively regulates the growth of skeletal muscle. We confirmed that myostatin expression is significantly increased in the quadriceps femoris muscle tissue of rats with COPD and is involved in the development of SMD in COPD, but the mechanism by which this occurs has yet to be uncovered.

Effect of cigarette smoke extract on mitochondrial division in mouse quadriceps femoris cells.

Background: To observe the effect of cigarette smoke extract (CSE) on mitochondrial division in mouse quadriceps femoris cells and to explore the potential molecular mechanism of skeletal muscle dysfunction (SMD) in patients with chronic obstructive pulmonary disease (COPD).

Methods: Quadriceps femoris were cultured, passaged, and stimulated with different concentrations of CSE. We divided cells into four groups (Control, 2.

Naked-eye repeatable off-on-off and on-off-on switching luminescence of copper(i)-1H-imidazo[4,5-f][1,10]phenanthroline complexes with reversible acid-base responses.

Considerable attention has been focused on Cu(i)-diimine-phosphine complexes because of their good room-temperature phosphorescence since 1979, but no attention has been focused on the exploration and exploitation by using them as smart acid-base responsive switching luminescent materials. Herein, the reaction of [Cu(MeCN)4]PF6, 2-(2-naphthyl)-1H-imidazo[4,5-f][1,10]phenanthroline (nimpH) and chelating diphosphine ligands bis[(2-diphenylphosphino)phenyl] ether (POP) and 9,9-dimethyl-4,5-bis(diphenylphosphino)-9H-xanthene (xantphos) or (±)-2,2'-bis(diphenylphosphino)-1,1'-binaphthalene (BINAP) in a 1 : 1 : 1 ratio afforded three ionic [Cu(nimpH)(PP)]PF6 complexes (PP = POP, 1a; xantphos, 2a; BINAP, 3a) and three neutral [Cu(nimp)(PP)] complexes (PP = POP, 1b; xantphos, 2b; BINAP, 3b) in neutral and strong alkaline media, respectively. The non-emissive complexes 1a, 2a and 3a exhibit turn-on luminescence upon exposure to the strong base NaOH and tetrabutylammonium fluoride (TBAF), and the intensely emissive complexes 1b, 2b and 3b display turn-off luminescence upon exposure to trifluoroacetic acid (TFA) in CH2Cl2 solutions.