Publications by authors named "Xiang-yong Kong"

Background And Objectives: Commonly adopted in cosmetic dermatology, nonablative radiofrequency (RF) devices convert high-frequency electromagnetic energy into thermal energy to induce a wound-healing response in skin tissue. However, differences in the electrical properties of different skin layers raise questions about the impact of different RF frequencies and target temperatures on treatment effectiveness. This paper presents a finite element analysis (FEA)-based computational study aimed at simulating and optimizing the effects of a proportional integral derivative (PID)-controlled RF cosmetic devices under different combinations of these two parameters during treatment.

View Article and Find Full Text PDF

Introduction: Patients with non-ST segment elevation acute coronary syndrome (NSTE-ACS) and concomitant multivessel coronary artery disease (CAD) are considered patients with extremely high-risk atherosclerotic cardiovascular disease (ASCVD), and current guidelines specify a lower low-density lipoprotein cholesterol (LDL-C) target for this population. Proprotein convertase subtilisin/kexin type 9 (PCSK9) inhibitors have been shown to effectively reduce LDL-C levels on a statin background. Additionally, several studies have confirmed the role of PCSK9 inhibitors in plaque regression and reducing residual cardiovascular risk in patients with ACS.

View Article and Find Full Text PDF

Background: Severe combined immunodeficiency (SCID) is the most fatal form of inherited primary immunodeficiency disease. Known molecular defect mutations occur in most children with SCID.

Methods: Herein, we report Adenosine Deaminase-SCID (ADA-SCID) using whole-exome sequencing (WES), explore exome mutational landscape and significance for 17 SCID samples, and verify the mutated exon genes using the Gene Expression Omnibus (GEO) datasets.

View Article and Find Full Text PDF

Classification of glomerular pathology based on histology sections is the key to diagnose the type and degree of kidney diseases. To address problems in the classification of glomerular lesions in children, a deep learning-based complete glomerular classification framework was designed to detect and classify glomerular pathology. A neural network integrating Resnet and Senet (RS-INet) was proposed and a glomerular classification algorithm implemented to achieve high-precision classification of glomerular pathology.

View Article and Find Full Text PDF

Background: The mechanism of PALLD, PRKCH, AKAP12, PDK4, and CHIT1 proteins in serum diagnosis of neonatal sepsis (NS) was explored.

Methods: Analysis of PALLD, PRKCH, AKAP12, PDK4, and CHIT1 expression in serum from NS patients and their correlations were manifested. Evaluation of the ability of PALLD, PRKCH, AKAP12, PDK4, and CHIT1 to identify NS was manifested.

View Article and Find Full Text PDF

Background: Proteomic studies investigating novel molecular markers of coronary artery calcification (CAC) are scarce.This study compared the protein expression in the serum of patients with severe CAC and non-CAC.

Methods: The serum from 30 patients with severe CAC and 30 matched-controls were screened by data-independent acquisition(DIA)-based proteomic technology.

View Article and Find Full Text PDF

The ubiquitin-proteasome system (UPS) plays an essential role in cellular homeostasis and myocardial function. Ubiquitin carboxy-terminal hydrolase 1 (UCHL1) is involved in cardiac remodeling, but its underlying mechanisms are largely unknown. Here, we observed that the UCHL1 was significantly up-regulated in angiotensin II-infused heart and primary cardiac fibroblast (CF).

View Article and Find Full Text PDF

Objective: To study the clinical features of very preterm small-for-gestational-age infants born by cesarean section due to severe preeclampsia.

Methods: Forty-two small-for-gestational-age infants who were admitted from August 2017 to July 2018 and were born due to severe preeclampsia were enrolled as the observation group. Forty very preterm infants who were born to healthy mothers since uterine contractions could not be suppressed were enrolled as the control group.

View Article and Find Full Text PDF

Objective: To study the clinical effect of white noise combined with glucose in reducing the procedural pain of retinopathy screening in preterm infants.

Methods: A total of 396 preterm infants with a gestational age of 28-34 weeks and a birth weight of ≤2 000 g were randomly divided into 4 groups according to the intervention method for reducing pain in retinopathy screening: control group with 100 infants (no white noise or glucose intervention), white noise group with 96 infants, glucose group with 98 infants and white noise + glucose group with 102 infants. The Premature Infant Pain Profile (PIPP) was used to determine pain score during retinopathy screening, and the four groups were compared in terms of PIPP score before and after retinopathy screening.

View Article and Find Full Text PDF

Objective: To investigate the mortality rate and the cause of death of hospitalized neonates.

Methods: The clinical data of 480 neonates who died between January 2008 and December 2014 were collected. The mortality rates of neonates with different gestational ages, birth weights, sexes, and ages in days were analyzed.

View Article and Find Full Text PDF

Background: The proportion assisted ventilation (PAV) can improve patient-ventilator interaction, reducing the incidence of end-expiratory asynchrony and increasing the time of synchrony. PAV could compensate for the leaks by elastic and resistive unloading and thus is ideal for neonates with uncuffed airways. The aim of this study was to compare the relevant clinical parameters of neonates with respiratory distress syndrome (RDS) who are supported by PAV plus synchronized intermittent mandatory ventilation (SIMV) and SIMV.

View Article and Find Full Text PDF

Background: The outcome of preterm infants has been varied in different hospitals and regions in developing countries. Regular clinical monitor are needed to know the effects of health care. This study aimed to describe the survival and morbidity rates of extreme to very preterm infants in 15 neonatal-intensive care hospitals in China.

View Article and Find Full Text PDF

Objective: To investigate the effect of premature rupture of the membrane (PROM) on neonatal complications in premature infants.

Methods: The registration information of 7684 preterm infants with gestational age <37 weeks were collected from the cooperative units in the task group between January 1, 2014 to December 31, 2014. Specially trained personnel from each cooperative units filled in the unified form in a standardized format to record the gender, gestational age, birth weight, PROM, placental abruption, antenatal corticosteroid, Apgar score, amniotic fluid pollution, and complications of the infants.

View Article and Find Full Text PDF

Background: Respiratory distress syndrome (RDS) is one of the most common causes of neonatal respiratory failure and mortality. The risk of developing RDS decreases with both increasing gestational age and birth weight.

Objectives: The aim of this study was to evaluate the value of lung ultrasound in the diagnosis of respiratory distress syndrome (RDS) in newborn infants.

View Article and Find Full Text PDF

Objective: To study the clinical and imaging features of premature infants with different degrees of bronchopulmonary dysplasia (BPD).

Methods: A prospective study was performed on the clinical data of 59 premature infants (gestational age <32 weeks) with BPD. Among the 59 premature infants, 37 cases had mild BPD and the other 22 cases had moderate to severe BPD.

View Article and Find Full Text PDF

Objective: The aim of this study was to evaluate the value of lung ultrasound in the diagnosis of respiratory distress syndrome (RDS) in newborn infants.

Methods: From March 2012 to May 2013, 100 newborn infants were divided into two groups: RDS group (50 cases) and control group (50 cases). According to the findings of chest x-ray, there were 10 cases of grade II RDS, 15 grade III cases, and 25 grade IV cases in RDS group.

View Article and Find Full Text PDF

Retinoic acid (RA) plays an important role in lung development and maturation. Many stimuli can induce alveolar epithelial cell damage which will result in the injury of lung parenchyma. The aim of this study was to observe the effect of RA on the proliferation and differentiation of primary fetal alveolar epithelial type II cells (fAECIIs).

View Article and Find Full Text PDF

Lung ultrasound has been extensively used to diagnose many types of lung disease. This study aimed to evaluate the pulmonary reasons for long-term oxygen dependence (LTOD) in premature infants using lung ultrasound.Lung ultrasound was routinely performed in 50 premature infants clinically diagnosed with bronchopulmonary dysplasia (BPD).

View Article and Find Full Text PDF

Background: Ultrasonography has been used for the diagnosis of many kinds of lung conditions, but few studies have investigated ultrasound for the diagnosis of neonatal pulmonary atelectasis (NAP). In this study, we evaluated the usefulness of lung ultrasonography for the diagnosis of NPA.

Methods: From May 2012 to December 2013, 80 neonates with NPA and 50 neonates without lung disease were enrolled in this study.

View Article and Find Full Text PDF

Background: Infants born outside perinatal centers may have compromised outcomes due to the transfer speed and efficiency to an appropriate tertiary center. This study aimed to evaluate the impact of regional coordinated changes in perinatal supports and retrieval services on the outcome of transported neonates in Beijing, China.

Methods: Information about transported newborns between phase 1 (July 1, 2004 to June 30, 2006) and phase 2 (July 1, 2007 to June 30, 2009) was collected.

View Article and Find Full Text PDF

Objective: To study the timing of presentation and perinatal high-risk factors for necrotizing enterocolitis (NEC) in preterm infants with a gestational age of <33 weeks.

Methods: A case-control study was conducted in 49 preterm infants with NEC (gestational age <33 weeks) who were admitted to the Neonatal Intensive Care Unit of Beijing Bayi Children's Hospital between October 1, 2010 and December 30, 2012, as well as preterm infants without NEC during the same period. The timing of presentation of NEC was retrospectively analyzed, and the perinatal high-risk factors for NEC were determined by multivariate logistic regression analysis.

View Article and Find Full Text PDF

Background: Information about clinical outcomes of very preterm (VPT) infants in tertiary neonatal intensive care unit (NICU) setting is scant in China. This study aimed to investigate the mortality and morbidity of VPT infants admitted to BaYi Children's Hospital, which serves as a NICU referral center for the city of Beijing, China.

Methods: Retrospectively collected perinatal/neonatal data on all admissions of infants born at <32 weeks of gestational age and subsequently admitted to the VPTNICU from clinical records between October 2010 and September 2011.

View Article and Find Full Text PDF

Objective: To observe the therapeutic effect of Ommaya reservoir implantation on hydrocephalus in premature infants following intraventricular hemorrhage (IVH) and to investigate factors influencing the therapeutic effect.

Methods: An ambispective cohort study was conducted on the clinical and follow-up data of 20 premature infants (gestational age <32 weeks, birth weight <1500 g) who received Ommaya reservoir implantation because of hydrocephalus following IVH. The therapeutic effect of Ommaya reservoir implantation was observed.

View Article and Find Full Text PDF

Objective: To determine whether early application of Duo positive airway pressure (DuoPAP), in comparison with nasal continuous positive airway pressure (NCPAP), can reduce the need for endotracheal intubation and mechanical ventilation and decrease the incidence of bronchopulmonary dysplasia (BPD) in preterm neonates with respiratory distress syndrome (RDS).

Methods: In a single-center, randomized controlled trial, preterm neonates (gestational ages 30-35 weeks) with RDS were randomly assigned to receive DuoPAP (n=34) or NCPAP (n=33) within 6 hours of birth. If the two noninvasive ventilations were not effective, endotracheal intubation and mechanical ventilation were used, and pulmonary surfactant was administered as rescue therapy.

View Article and Find Full Text PDF

Objective: Acute lung injury is a severe complication after cardiac surgery performed with cardiopulmonary bypass in infant patients. Pulmonary surfactant has been successfully used in treating neonatal respiratory distress syndrome for many years. This study focused on exploring the clinical efficacy of exogenous pulmonary surfactant in treating infant patients with acute lung injury after cardiac surgery with the use of extracorporeal circulation.

View Article and Find Full Text PDF