Identification of a ten-long noncoding RNA signature for predicting the survival and immune status of patients with bladder urothelial carcinoma based on the GEO database: a superior machine learning model.

Bladder urothelial carcinoma (BLCA) is recognized to be immunogenic and tumorigenic. This study identified a novel long noncoding RNA (lncRNA) signature for predicting survival for patients with BLCA. A univariate Cox regression model and the random survival forest-variable hunting (RSF-VH) algorithm were employed to achieve variable selection.

[The Diagnostic Value of Captopril Challenge Test for Primary Aldosteronism].

Objective: To investigate the diagnostic value of different captopril challenge test (CCT) diagnostic criteria for diagnosing primary aldosteronism (PA).

Methods: We collected the clinical data of 184 patients with hypertension retrospectively in West China Hospital of Sichuan University. Receiver operating characteristic (ROC) curves were used to analyze the post-CCT efficacy of aldosterone renin activity ratio (ARR), plasma aldosterone concentration (PAC), plasma renin activity (PRA) and PAC suppression rate for PA diagnosis.

[The Value of Postural Stimulation Test Combined with Adrenal CT in the Diagnosis of Aldosterone-producing Adenoma].

Objective: Adrenal vein sampling (AVS) and pathological report were selected as gold standard to assess the value of adrenal CT scan combined with postural stimulation test in diagnosing aldosterone-producing adenoma.

Methods: The clinical data of primary aldosteronism (PA) patients including aldosterone-producing adenoma (APA) and idiopathic hyperaldosteronism (IHA) were retrospectively collected in the West China Hospital of Sichuan University. The sensitivity and specificity of adrenal CT scan combined with postural stimulation test in diagnosing APA were studied.

SNPs, linkage disequilibrium, and chronic mountain sickness in Tibetan Chinese.

Chronic mountain sickness (CMS) is estimated at 1.2% in Tibetans living at the Qinghai-Tibetan Plateau. Eighteen single-nucleotide polymorphisms (SNPs) from nine nuclear genes that have an association with CMS in Tibetans have been analyzed by using pairwise linkage disequilibrium (LD).

Optimal protective hypothermia in arrested mammalian hearts.

Many therapeutic hypothermia recommendations have been reported, but the information supporting them is sparse, and reveals a need for the data of target therapeutic hypothermia (TTH) from well-controlled experiments. The core temperature ≤35°C is considered as hypothermia, and 29°C is a cooling injury threshold in pig heart in vivo. Thus, an optimal protective hypothermia (OPH) should be in the range 29-35°C.

VEGFA SNPs and transcriptional factor binding sites associated with high altitude sickness in Han and Tibetan Chinese at the Qinghai-Tibetan Plateau.

Mountain sickness (MS) occurs among humans visiting or inhabiting high altitude environments. We conducted genetic analyses of seven single nucleotide polymorphisms (SNPs) in the promoter region of VEGFA gene for lowland (Han) and highland (Tibetan) Chinese. The seven SNPs were evaluated in Han and Tibetan patients with acute (A) and chronic (C) MS.

AKT3, ANGPTL4, eNOS3, and VEGFA associations with high altitude sickness in Han and Tibetan Chinese at the Qinghai-Tibetan Plateau.

Mountain sickness (MS) occurs among humans visiting or inhabiting high altitude environments. We conducted genetic analyses of the AKT3, ANGPTL4, eNOS3 and VEGFA genes in lowland (Han) and highland (Tibetan) Chinese. Ten single nucleotide polymorphisms (SNPs) were evaluated in Han and Tibetan patients with acute (A) and chronic (C) MS.

EPAS1 and EGLN1 associations with high altitude sickness in Han and Tibetan Chinese at the Qinghai-Tibetan Plateau.

High altitude sickness (HAS) occurs among humans visiting or inhabiting high altitude environments. Genetic differences in the EPAS1 and EGLN1 genes have been found between lowland (Han) and highland (Tibetan) Chinese. Three SNPs within EPAS1 and EGLN1 were evaluated in Han and Tibetan patients with acute mountain sickness (AMS) and chronic mountain sickness (CMS).

Genetic associations with mountain sickness in Han and Tibetan residents at the Qinghai-Tibetan Plateau.

Background: Acute (AMS) and chronic (CMS) mountain sicknesses are illnesses that occur among humans visiting or inhabiting high-altitude environments, respectively. Some individuals are genetically less fit than others when stressed by an extreme high-altitude environment. Seven blood physiological parameters and five genetic polymorphisms were studied in Han patients with AMS and Tibetan patients with CMS.

Moderate hypothermia (30 degrees C) maintains myocardial integrity and modifies response of cell survival proteins after reperfusion.

Hypothermia preserves myocardial function, promotes signaling for cell survival, and inhibits apoptotic pathways during 45-min reperfusion. We tested the hypothesis that signaling at the transcriptional level is followed by corresponding proteomic response and maintenance of structural integrity after 3-h reperfusion. Isolated hearts were Langendorff perfused and exposed to mild (I group; n = 6, 34 degrees C) or moderate (H group; n = 6, 30 degrees C) hypothermia during 120-min total ischemia with cardioplegic arrest and 180-min 37 degrees C reperfusion.

Mild hypothermic cross adaptation resists hypoxic injury in hearts: a brief review.

Severe cardiac hypoxia is responsible for significant morbidity and mortality in an emergency setting. Most cardiac hypoxia relates to ischemia and surgical events. Although the ischemic mortality rate and the risks of cardiac surgery have significantly decreased in past decades, myocardial protection still plays a major role in survival of hypoxic injury.

Short-cycle hypoxia in the intact heart: hypoxia-inducible factor 1alpha signaling and the relationship to injury threshold.

Hypoxia-inducible factor 1alpha (HIF-1alpha) transcriptionally activates multiple genes, which regulate metabolic cardioprotective and cross-adaptive mechanisms. Hypoxia and several other stimuli induce the HIF-1alpha signaling cascade, although little data exist regarding the stress threshold for activation in heart. We tested the hypothesis that relatively mild short-cycle hypoxia, which produces minimal cardiac dysfunction and no sustained or major disruption in energy state, can induce HIF-1alpha activation.

[Exclusion of the association of five known mutations with congenital stationary nyctalopia in a large Chinese family].

Objective: To detect gene mutations associated with autosomal dominant congenital stationary night blindness(ADCSNB) in a large Chinese family.

Methods: Genomic DNAs were extracted from peripheral blood samples of 16 affected and 14 unaffected family members. According to 5 missense mutations in 3 genes reported previously, 4 pairs of primers were designed and corresponding exons containing the five mutation sites were amplified by polymerase chain reaction.

Hypothermia preserves myocardial function and mitochondrial protein gene expression during hypoxia.

Hypothermia before and/or during no-flow ischemia promotes cardiac functional recovery and maintains mRNA expression for stress proteins and mitochondrial membrane proteins (MMP) during reperfusion. Adaptation and protection may occur through cold-induced change in anaerobic metabolism. Accordingly, the principal objective of this study was to test the hypothesis that hypothermia preserves myocardial function during hypoxia and reoxygenation.

Hypothermic protection of the ischemic heart via alterations in apoptotic pathways as assessed by gene array analysis.

Hypothermia improves resistance to ischemia in the cardioplegia-arrested heart. This adaptive process produces changes in specific signaling pathways for mitochondrial proteins and heat-shock response. To further test for hypothermic modulation of other signaling pathways such as apoptosis, we used various molecular techniques, including cDNA arrays.