Abstract Tetrahymenosis is caused by the ciliated protozoan Tetrahymena and is responsible for serious economic losses to the aquaculture industry worldwide. However, information regarding the molecular mechanism leading to tetrahymenosis is limited. In previous transcriptome sequencing work, it was found that β-tubulin gene was significantly expressed in T. pyriformis during its infected fish, we speculated that β-tubulin involved in Tetrahymena piriformis infecting fish. Herein, the potential biological function of the β-tubulin gene in Tetrahymena species when establishing infection in guppies was investigated by cloning the full-length cDNA of T. pyriformis β-tubulin gene (TUBB). The full-length cDNA of TUBB was 1873 bp, and the ORF occupied 1134 bp, whereas 5' UTR 434 bp, and 3' UTR 305 bp whose poly (A) tail contained 12 bases. The predicted protein encoded by TUBB had a calculated molecular weight of 42.26 kDa and pI of 4.48. Moreover, secondary structure analysis and tertiary structure prediction of TUBB protein were also conducted. In addition, morphology, infraciliature, phylogeny, and histopathology of T. pyriformis isolated from guppies from a fish market in Harbin were also investigated. Furthermore, qRT-PCR analysis and experimental infection assays indicated that the expression of TUBB resulted in efficient cell proliferation during infection. Collectively, our data revealed that TUBB is a key gene involved in T. pyriformis infection in guppies, and the findings discussed herein provide valuable insights for future studies on tetrahymenosis.
Abstract Purpose Hypoalbuminemia is associatied with to poor outcome in patients undergoing surgery intervention. The main aim for this study was to investigate the incidence and the risk factors of postoperative hypoalbuminemia and assessed the impact of postoperative hypoalbuminemia on postoperative complications in patients undergoing brain tumor surgery. Methods This retrospective study included 372 consecutive patients who underwent craniotomy for brain tumors from January 2017 to December 2019. The demographic data, pre- and post-operative laboratory tests and postoperative complications were collected. The patients were divided into two groups based on the postoperative serum albumin levels; hypoalbuminemia group (< 35 g/L) and non-hypoalbuminemia group (≥ 35 g/L). Univariate and multivariate logistic regression analyses were used to determine risk factors of postoperative hypoalbuminemia and complications. Results Of the total 372 patients underwent craniotomy due to brain tumor, 333 patients (89.5%) developed hypoalbuminemia after surgery. Hypoalbuminemia was associated with operation time (OR 1.011, P < 0.001), preoperative albumin (OR 0.864, P = 0.015) and peroperative globulin (OR 1.192, P = 0.004). The incidence of postoperative pneumonia in patients with hypoalbuminemia (41.1%) significantly higher than that in patients without hypoalbuminemia (23.1%) (P = 0.029). The independent predictors of postoperative pneumonia were age (OR 1.053, P < 0.001), operation time (OR 1.003, P = 0.013) and lower postoperative albumin (OR 0.946, P = 0.018). Conclusions Postoperative hypoalbuminemia has a higher incidence with the increase of operation time, and is associated with postoperative pneumonia in patients underwent craniotomy due brain tumor.
Hypoalbuminemia is associated with poor outcome in patients undergoing surgery intervention. The main aim for this study was to investigate the incidence and the risk factors of postoperative hypoalbuminemia and assessed the impact of postoperative hypoalbuminemia on complications in patients undergoing brain tumor surgery. This retrospective study included 372 consecutive patients who underwent brain tumors surgery from January 2017 to December 2019. The patients were divided into hypoalbuminemia (< 35 g/L) and non-hypoalbuminemia group (≥ 35 g/L) based on postoperative albumin levels. Logistic regression analyses were used to determine risk factors. Of the total 372 patients, 333 (89.5%) developed hypoalbuminemia after surgery. Hypoalbuminemia was associated with operation time (OR 1.011, P < 0.001), preoperative albumin (OR 0.864, P = 0.015) and peroperative globulin (OR 1.192, P = 0.004). Postoperative pulmonary imaging abnormalities had a higher incidence in patients with than without hypoalbuminemia (41.1% vs 23.1%, P = 0.029). The independent predictors of postoperative pulmonary imaging abnormalities were age (OR 1.053, P < 0.001), operation time (OR 1.003, P = 0.013) and lower postoperative albumin (OR 0.946, P = 0.018). Pulmonary imaging abnormalities [OR 19.862 (95% CI 2.546-154.936, P = 0.004)] was a novel independent predictors of postoperative pneumonia. Postoperative hypoalbuminemia has a higher incidence with the increase of operation time, and may be associated with postoperative complications in patients undergoing brain tumor surgery.
The incidence of symptomatic chronic subdural hematoma (CSDH) is increasing in Chinese aging population, but its clinical and demographic knowledge is still lacking. This study sought to outline the clinical and demographic data of CSDH patients from two medical centers in Tianjin and Chongqing to provide a better understanding for CSDH treatment in China.Age, sex, etiologies, conscious level on admission, treatment strategies, outcome at discharge, recurrence, and concomitant disease of enrolled patients were recorded. The data were further analyzed after the patients were sub-grouped into young/middle (less than 60 years old) and old (over than 60 years old) age groups.A total of 1281 CSDH patients were enrolled. Of these, 85.01% were male and 51.91% were aged between 60 and 80 years. 57.61% patients encountered head trauma before diagnosing CSDH. The top three clinical symptoms at admission were headache (58.55%), dyskinesia (36.92%), and dizziness (33.96%). Headache as well as dizziness often happened in young/middle age group, while dyskinesia often occurred in the old age group. The most common concomitant diseases were cardio-cerebrovascular system diseases (41.14%). The concomitant respiratory diseases in aged patients led to unfavorable outcomes (p = 0.049, OR:0.357). The prognosis of old age subgroup receiving conservative treatment was better than those who received burr-hole drainage treatment (p < 0.015, OR:4.091).CSDH mostly occurs in aged and male population with a history a head trauma. The respiratory disease often results in unfavorable outcomes in aged patients. Conservative treatment might benefit some patients.
BACKGROUND: Intracerebral hemorrhage represents a critical subtype of stroke, imposing substantial social and economic challenges. Considering the considerable impact of intracerebral hemorrhage in Asia and the absence of studies detailing its epidemiological features, the aim of this study is to elucidate the temporal trends and distribution characteristics of intracerebral hemorrhage in Asia from 1990 to 2021, as well as to forecast the future burden. METHODS: The data derived from Global Disease Burden Study 2021 were used to investigate the age-standardized rates and absolute numbers of incident intracerebral hemorrhage cases and related deaths in Asia across genders, age groups and geographical locations. Estimated annual percentage change was estimated to represent temporal trends and autoregressive integrated moving average model was used to forecast the future burden. RESULTS: In Asia, the age-standardized incidence and mortality rates of intracerebral hemorrhage per 100, 000 population have declined from 1990 to 2021, despite a continuous increase in the absolute numbers, which exhibit significant heterogeneity across different geographical locations. In terms of gender, males experience a greater burden of intracerebral hemorrhage compared to females, and the impact of risk factors on disability-adjusted life years of intracerebral hemorrhage varies. In comparison to the figures observed in 2021, our forecasts indicate a rise in the burden of intracerebral hemorrhage in Asia. CONCLUSIONS: The study offers an extensive depiction of the epidemiological features of intracerebral hemorrhage in Asia spanning from 1990 to 2021, while also outlining the diverse trajectories of the impending burden of this condition in the region. Comprehending the expected increase in disease burden can aid in formulating tailored strategies to tackle upcoming challenges.
Intracerebral hemorrhage (ICH), as a type of life-threatening and highly disabled disease, has limited therapeutic approaches. Here, we show that exosomes derived from young healthy human plasma exhibiting typical exosomes features could facilitate functional recovery of ICH mice. When these exosomes are intraventricularly delivered into the brain after ICH, they mainly distribute around the hematoma and could be internalized by neuronal cells. Strikingly, exosomes administration markedly enhanced the behavioral recovery of ICH mice through reducing brain injury and cell ferroptosis. MiRNA sequencing revealed that microRNA-25-3p (miR-25-3p) was differentially expressed miRNA in the exosomes from young healthy human plasma, compared with exosomes from the old control. Importantly, miR-25-3p mimicked the treatment effect of exosomes on behavioral improvement, and mediated the neuroprotective effect of exosomes against ferroptosis in ICH. Furthermore, luciferase assay and western blotting data illustrated that P53 as assumed the role of a downstream effector of miR-25-3p, thereby regulating SLC7A11/GPX4 pathway to counteract ferroptosis. Taken together, these findings firstly reveal that exosomes from young healthy human plasma improve functional recovery through counteracting ferroptotic injury by regulating P53/SLC7A11/GPX4 axis after ICH. Given the easy availability of plasma exosomes, our study provides a potent therapeutic strategy for ICH patients with quick clinical translation in the near future.
Abstract Despite extensive research on the relationship between choline and cardiovascular disease (CVD), conflicting findings have been reported. We aim to investigate the relationship between choline and CVD. Our analysis screened a retrospective cohort study of 14,663 participants from the National Health and Nutrition Examination Survey conducted between 2013 and 2018. Propensity score matching and restricted cubic splines was used to access the association between choline intake and the risk of CVD. A two-sample Mendelian randomization (MR) analysis was conducted to examine the potential causality. Additionally, sets of single cell RNA-sequencing data were extracted and analyzed, in order to explore the role of choline metabolism pathway in the progression and severity of the CVD and the underlying potential mechanisms involved. The adjusted odds ratios and 95% confidence intervals for stroke were 0.72 (0.53–0.98; p = 0.035) for quartile 3 and 0.54 (0.39–0.75; p < 0.001) for quartile 4. A stratified analysis revealed that the relationship between choline intake and stroke varied among different body mass index and waist circumference groups. The results of MR analysis showed that choline and phosphatidylcholine had a predominantly negative causal effect on fat percentage, fat mass, and fat-free mass, while glycine had opposite effects. Results from bioinformatics analysis revealed that alterations in the choline metabolism pathway following stroke may be associated with the prognosis. Our study indicated that the consumption of an appropriate quantity of choline in the diet may help to protect against CVD and the effect may be choline-mediated, resulting in a healthier body composition. Furthermore, the regulation of the choline metabolism pathway following stroke may be a promising therapeutic target.
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