Efficacy and safety of rh-endostatin combined with docetaxel in second-line or intolerant toxicity for first-line treatment in patients with advanced non-small cell lung cancer / 中华肿瘤杂志

<p><b>OBJECTIVE</b>To analyze the efficacy and safety of combination of rh-endostatin (Endostar) with docetaxel treatment on patients of non-small cell lung cancer (NSCLC) who presented PD or intolerable toxicity in/after first-line chemotherapy.</p><p><b>METHODS</b>A randomized, double-blind, placebo-controlled and multi-center clinical trial was conducted. Patients with stage IIIB/IV of NSCLC experienced previous chemotherapy of one-regimen were screened for this trial. A total of 68 cases were included in this study. Single docetaxel and that combined with endostar were conducted in two arms. The response, time to progression (TTP) and adverse effects were observed in both arms.</p><p><b>RESULTS</b>The objective response rate (ORR) and clinical benefit rate (CBR) were 0 and 62.5% in the combined arm, along with 0 and 53.3% in the single docetaxel arm, with a non-significant difference between the two groups (all P > 0.05), respectively. The median TTPs in the combined and single docetaxel arms were 2.63 and 2.07 months, respectively (P = 0.079). The median TTPs of the participants with progressive disease (PD) after first-line chemotherapy were 1.33 and 1.67 months in the combined and single docetaxel arms, respectively (P = 0.946). The median TTPs of the participants with intolerant adverse effects in first-line chemotherapy were 4.70 months and 3.17 months in the combined and single docetaxel arms, respectively (P = 0.070). The median TTPs of the patients with SD after 2 therapeutic cycles in the combined and single docetaxel arms were 6.23 months and 3.27 months, respectively (P = 0.040). The differences between two arms were non-significant in adverse, serious adverse and cardiovascular adverse effects (all P > 0.05).</p><p><b>CONCLUSIONS</b>Endostar may prolong TTP in patients with advanced NSCLC benefited from docetaxel treatment without increased toxicities.</p>

Effects of hydrogen sulfide on pulmonary surfactant in rats with acute lung injury induced by lipopolysccharide / 中国应用生理学杂志

<p><b>OBJECTIVE</b>To observe the changes of pulmonary surfactant (PS) in rats with acute lung injury(ALI) induced by lipopolysaccharide (LPS) and to explore the effects of hydrogen sulfide (H2S) on PS.</p><p><b>METHODS</b>Fourty- eight male rats were randomly divided into six groups (n = 8). They were control group, LPS group, LPS+ NaHS low, middle, high dose groups and LPS+ PPG group. Saline was administrated in Control group. LPS was administrated in LPS group. In LPS + NaHS low, middle, high dose groups or LPS + PPG group, sodium hydrosulfide (NaHS) of different doses or DL-propargylglycine (PPG) were respectively administrated when the rats were administrated of LPS after 3 hours. All the rats were killed at 6 hours after administration of Saline or LPS. The morphological changes of alveolar epithelial type II cells (AEC-II) were respectively observed by transmission electron microscopes. The content of H2S in plasma and activity of cystathionine-gamma-lyase (CSE) in lung tissues were respectively detected. The contents of total protein (TP) and total phospholipids (TPL) in bronchoalveolar lavage fluid (BLAF) were respectively measured. The pulmonary surfactant protein A (SP-A), surfactant protein B (SP-B) and surfactant protein-C (SP-C) mRNA expressions in lung tissues were analysed.</p><p><b>RESULTS</b>(1) Compared with control group, the content of H2S in plasma, activity of CSE, content of TPL, and SP-A, SP-B and SP-C mRNA expressions were respectively decreased in LPS group (P < 0.05 or P < 0.01). But the content of TP was increased in LPS group (P < 0.01); (2) Compared with LPS group, the content of H2S, activity of CSE and SP-A mRNA expression were significantly increased in LPS + NaHS low, middle and high dose groups (P < 0.05). The SP-B mRNA expression and content of TPL were significantly increased in LPS + NaHS Middle and High dose groups (P < 0.05). The content of TP was decreased in LPS + NaHS High dose group (P < 0.05). The SP-C mRNA expression was not altered in LPS+ NaHS low, middle and high dose groups (P > 0.05); (3) Compared with LPS group, the content of H2S, activity of CSE, content of TPL, and SP-A, SP-B and SP-C mRNA expressions were respectively decreased, but content of TP was increased in LPS + PPG group (P < 0.05).</p><p><b>CONCUSION</b>The decrease of PS is the important physiopathologic process of ALI induced by LPS. Exogenously applied H2S could attenuate the process of ALI that possibly because H2S could adjust the compose and secretion of PS.</p>