Quantifying ocular microcirculation in hypertension patients with carotid artery stenosis.

Background: Carotid artery stenosis (CAS) is one of the most common macrovascular complications of hypertension. The ophthalmic artery springs from the internal carotid artery; however, the effect of CAS on ocular microcirculation has not been quantified in hypertension patients. This study aimed to quantify ocular microcirculation metrics in hypertension with CAS (HCAS) patients and to explore the relationship between micro- and macroangiopathy in hypertension.

A comparative study examining the impact of coronary artery bypass grafting surgery with non-extracorporeal circulation on heart function and structure in patients with various forms of coronary heart diseases.

The aim of this study is to assess alterations in heart function and structure in patients diagnosed with non-ST segment elevation acute myocardial infarction (NSTEAMI), unstable angina (UA), and stable angina (SA) 1 year after undergoing off-pump coronary artery bypass grafting (OPCABG) performed without extracorporeal circulation. A total of 182 patients who underwent OPCABG were included and classified into 3 groups based on their preoperative diagnosis: the NSTEAMI group (n = 68), the UA group (n = 64), and the SA group (n = 50). Cardiac ultrasonography data were collected for all groups both preoperatively and 1 year postoperatively.

[Dynamic changes of diaphragm and limb skeletal muscle in patients with sepsis assessed by bedside ultrasound and their correlation with blood urea/creatinine ratio].

Objective: To investigate the dynamic changes of diaphragm and limb skeletal muscle in patients with sepsis by bedside ultrasound and their correlation with the ratio of blood urea/creatinine ratio (UCR) in 7 days after intensive care unit (ICU) admission.

Methods: A prospective observational study was conducted. A total of 55 patients with sepsis admitted to ICU of General Hospital of Ningxia Medical University from June 2022 to February 2023 were selected as the research objects.

[The dynamic monitoring of gastric residual volume by ultrasound was used to guide the early nutritional treatment of patients with severe mechanical ventilation to gradually achieve the standard].

Objective: To explore the application value of dynamic monitoring of gastric residual volume (GRV) in achieving different target energy in severe mechanical ventilation patients.

Methods: A prospective randomized controlled study was conducted. Forty-two patients with mechanical ventilation admitted to the department of critical care medicine of General Hospital of Ningxia Medical University from July to December 2022 were enrolled.

Quantify retinal structure in high-altitude residents with and without high altitude polycythemia.

Background: To assess retinal structural parameters in high-altitude (HA) residents with and without high altitude polycythemia (HAPC) and to elucidate the relationship between retinal structural parameters and hemoglobin (HGB).

Methods: This cross-sectional study included 55 HAPC patients and 52 healthy HA residents. Retinal structural parameters included retinal nerve fiber layer (RNFL) thickness, optic nerve head (ONH) parameters and retinal vessel diameter.

MRI-assessed diaphragmatic function can predict frequent acute exacerbation of COPD: a prospective observational study based on telehealth-based monitoring system.

Background: Acute exacerbations of chronic obstructive pulmonary disease (AECOPD) have considerably high mortality and re-hospitalisation rate. Diaphragmatic dysfunction (DD) is common in COPD patients. However, whether diaphragmatic dysfunction is related to acute exacerbation is yet to be elucidated.

Effects of long-term high-altitude exposure on retinal and choroidal microcirculation.

Purpose: To quantify the effect of long-term high-altitude (HA) exposure on retinal and choroidal microcirculation and to relate these changes to high-altitude polycythemia (HAPC), as a proxy for etiopathogenesis of high-altitude related retinopathy (HAR).

Methods: Fifty-one HAPC patients, 50 healthy HA residents, and 43 low altitude (LA) residents were recruited in this study. Optical coherence tomography angiography (OCTA) and enhanced depth imaging (EDI)-OCT images were analyzed.

[Application value of lung ultrasound in the diagnosis and severity assessment of ventilator-associated pneumonia].

Objective: To explore the value of bedside lung ultrasound in the early diagnosis and severity assessment of ventilator-associated pneumonia (VAP).

Methods: A prospective observational study was conducted in 60 patients with VAP (VAP group) and 62 patients without VAP (control group) who were admitted to department of intensive care unit of General Hospital of Ningxia Medical University from September 2018 to July 2020. The gender, age and underlying diseases of non-VAP group were matched with VAP group.

Carbon monoxide attenuates LPS-induced myocardial dysfunction in rats by regulating the mitochondrial dynamic equilibrium.

Lipopolysaccharide (LPS) induces myocardial dysfunction by damaging the mitochondrial structure in cardiomyocytes. Since low levels of carbon monoxide can confer cytoprotective effects against end-organ damage from endotoxic shock, we tested whether treatment with carbon monoxide-releasing molecule-2 (CORM-2) could ameliorate LPS-induced myocardial dysfunction in rats by maintaining the dynamic equilibrium between the mitochondrial fusion and fission processes. Cardiac function, myocardial histopathology, myocardial enzymes, and changes in myocardial mitochondrial function and mitochondrial fusion-fission protein expression were assessed in rats.

Comparison of 27-Gauge and 25-Gauge Microincision Vitrectomy Surgery for the Treatment of Vitreoretinal Disease: A Systematic Review and Meta-Analysis.

Background: We performed a systematic review and meta-analysis to evaluate the safety and effectiveness of 27-gauge (27-G) microincision vitrectomy surgery (MIVS) compared with 25-guage (25-G) MIVS for the treatment of vitreoretinal disease.

Methods: A systematic electronic search was conducted in March 2020 in PubMed, Embase, and the Cochrane library. Eligible criteria for including studies were controlled trials comparing 27-G vitrectomy with 25-G vitrectomy in patients with vitreoretinal disease.

Color Doppler Imaging Analysis of Retrobulbar Blood Flow Velocities in Diabetic Patients Without or With Retinopathy: A Meta-analysis.

Objectives: To analyze hemodynamic changes in retrobulbar blood vessels using color Doppler imaging in diabetic patients without or with retinopathy.

Methods: Pertinent publications were retrieved from 3 databases. Changes in peak systolic velocity (PSV), end-diastolic velocity (EDV), and resistive index (RI) of the ophthalmic artery, central retinal artery, and short posterior ciliary artery of diabetic eyes without or with retinopathy and healthy controls were evaluated by color Doppler imaging.

System review and meta-analysis on photodynamic therapy in central serous chorioretinopathy.

Purpose: To evaluate the effect of photodynamic therapy (PDT) on central serous chorioretinopathy (CSC) compared with laser therapy and intravitreal injection of anti-vascular endothelial growth factor (anti-VEGF) drugs, and to find the maximum treatment effect with minimal dose and fluence of PDT.

Methods: A systematic electronic search was conducted in Feb 2013 in PubMed, Embase, ISI Web of Knowledge and the Cochrane library. The main outcome factors were compared in best-corrected visual acuity (BCVA), central macular thickness (CMT) and resolution of subretinal fluid (SRF).

Association of tumor necrosis factor alpha promoter polymorphism (TNF-α 238 G/A and TNF-α 308 G/A) with diabetic mellitus, diabetic retinopathy and diabetic nephropathy: a meta-analysis.

Aim: To examine the association between tumor necrosis factor alpha (TNF-α) polymorphism and risk for diabetic mellitus (DM), diabetic retinopathy (DR) and diabetic nephropathy (DN).

Methods: Systematic searches of electronic databases such as PubMed, Medline, Web of knowledge and CNKI, as well as hand searching of the references of identified articles were performed. A total of 8979 subjects in 14 studies from 12 eligible publications were included in this meta-analysis (6 of 12 eligible studies were analyzed for TNF 238 G/A polymorphism and Type 1 DM (T1DM), 5 of 12 were analyzed for TNF 308 G/A polymorphism and DR in Type 2 DM (T2DM), and 3 of 12 were analyzed for TNF 308 G/A polymorphism and DN in T2DM).

Overexpression of high mobility group A1 protein in human uveal melanomas: implication for prognosis.

There is increasing evidence that the high mobility group A1 (HMGA1) protein, which functions as a transcriptional master regulator, plays critical roles in tumor progression. We evaluated HMGA1 expression in 89 primary uveal melanomas (UM) by immunohistochemistry to determine the clinicopathological and prognostic value of HMGA1 in UM after adjusting for other prognostic variables. Nuclear expression of HMGA1 was detected in 44% UMs.

Volume measurement of crowns in mandibular primary central incisors by micro-computed tomography.

Objective: To determine sex differences in the tissue proportions of crowns of mandibular primary central incisors in Chinese children and to quantify the volume of crown components in three dimensions using micro-computed tomography (micro-CT).

Materials And Methods: The specimens used in this study were 41 mandibular first deciduous incisor teeth with intact crowns (21 males and 20 females) obtained from patients between 5-6 years of age. Each specimen was scanned using micro-CT at a resolution of 0.

Color Doppler imaging analysis of retrobulbar blood flow velocities in primary open-angle glaucomatous eyes: a meta-analysis.

Background: To analyze the diagnostic value of color Doppler imaging (CDI) of blood flow in the retrobulbar vessels of eyes with primary open-angle glaucoma (POAG).

Methods: Pertinent publications were retrieved from the Cochrane Central Register of Controlled Trials, PubMed and the ISI Web of Knowledge up to October 2012. Changes in peak systolic velocity (PSV), end diastolic velocity (EDV) and resistive index (RI) of the ophthalmic artery (OA), central retinal artery (CRA) and short posterior ciliary artery (SPCA) of POAG eyes and normal controls were evaluated by CDI.

Comparison of intravitreal triamcinolone acetonide with intravitreal bevacizumab for treatment of diabetic macular edema: a meta-analysis.

Purpose: To compare the effects of intravitreal triamcinolone acetonide (IVTA) and intravitreal bevacizumab (IVB) injections for the treatment of diabetic macular edema (DME).

Methods: A literature search was conducted using PUBMED, the Cochrane Central Register of Controlled Trials, Web of Science and the Chinese Biomedical Database. Pooled mean differences (MDs) for changes in visual acuity (VA) and central macular thickness (CMT) were calculated between groups receiving a single TA (4 mg) and bevacizumab (1.

Meta-analysis of association between the Pro12Ala polymorphism of the peroxisome proliferator-activated receptor-γ2 gene and diabetic retinopathy in Caucasians and Asians.

Purpose: The Pro12Ala polymorphism of the peroxisome proliferator-activated receptor-γ2 (PPARγ2) gene is reported to be associated with diabetes. However, the gene's association with diabetic retinopathy (DR) in type 2 diabetes mellitus (T2DM) has been investigated in numerous epidemiologic studies with controversial results. This meta-analysis aimed to collectively assess the association of the Pro12Ala polymorphism with DR in T2DM.

[LC-MSn analysis of metabolites of 1,2-[bis (1,2-benzisoselenazolone-3(2H)-ketone)]-ethane, a novel anti-cancer agent in rat].

This study is to elucidate the metabolic pathway of 1,2-[bis (1,2-benzisoselenazolone-3 (2H)-ketone)]-ethane (BBSKE) in rats. Rats were administrated with a single dose of BBSKE 200 mg x kg(-1). The metabolites in rat urine, feces, bile and plasma were identified by LC-MSn analysis.