Publications by authors named "Hong-mei Xu"

Background: Pertussis resurgence has been reported worldwide in the past two decades. Pertussis is still endemic and difficult to control though with universal vaccination in children. The resurgence may be related to multiple variables, such as increased disease awareness and laboratory tests, waning of immunity following vaccination, and/or genetic mutations of Bordetella pertussis.

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Women undergoing fertilization and embryo transfer (IVF-ET) often utilize acupuncture to enhance pregnancy outcomes. Yet, the optimal timing for acupuncture sessions and the relationship between dosage and effect remain uncertain. To investigate the impact of the timing and dosage of acupuncture on pregnancy outcomes, drawing on existing research.

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Objective: The objective of this study was to investigate the risk factors associated with cesarean scar pregnancy (CSP) and to develop a model for predicting intraoperative bleeding risk.

Methods: We retrospectively analyzed the clinical data of 208 patients with CSP who were admitted to the People's Hospital of Leshan between January 2018 and December 2022. Based on whether intraoperative bleeding was ≥ 200 mL, we categorized them into two groups for comparative analysis: the excessive bleeding group (n = 27) and the control group (n = 181).

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Article Synopsis
  • The study aimed to evaluate how the hospital-community-home (HCH) linkage management model affects patients with type 2 diabetic nephropathy (DN).
  • A total of 80 hospitalized patients were divided into two groups: one receiving standard care (control) and the other receiving enhanced HCH management (observation).
  • Results showed that the observation group had better compliance, improved renal function, lower blood glucose levels, and enhanced self-management abilities compared to the control group, indicating that the HCH model is beneficial for these patients.
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Pediatric acute liver failure (PALF) is a rare and rapidly progressive clinical syndrome with a poor prognosis and significant mortality. The etiology of PALF is complex, and it presents with diverse and atypical clinical manifestations. Accurate diagnosis based on age-related factors, early recognition or prevention of hepatic encephalopathy, and precise supportive treatment targeting the underlying cause are crucial for improving outcomes and prognosis.

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Objectives: To investigate the clinical characteristics and prognosis of pneumococcal meningitis (PM), and drug sensitivity of (SP) isolates in Chinese children.

Methods: A retrospective analysis was conducted on clinical information, laboratory data, and microbiological data of 160 hospitalized children under 15 years old with PM from January 2019 to December 2020 in 33 tertiary hospitals across the country.

Results: Among the 160 children with PM, there were 103 males and 57 females.

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Background: Respiratory syncytial virus (RSV) is the leading global cause of respiratory infections and is responsible for about 3 million hospitalizations and more than 100,000 deaths annually in children younger than 5 years, representing a major global healthcare burden. There is a great unmet need for new agents and universal strategies to prevent RSV infections in early life. A multidisciplinary consensus development group comprising experts in epidemiology, infectious diseases, respiratory medicine, and methodology aims to develop the current consensus to address clinical issues of RSV infections in children.

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Background: In tea plantations with high-pH (pH > 6.5) in Northern China, tea plants are prone to yellowing disease, albinism, and reductions in components that contribute to plant quality, which affect the scale and rate of tea plantation development in Northern China.

Methods: To investigate the potential causes of these issues, .

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  • * The paper introduces a new engineering model called cell position and motion fields (CPMF) that allows for tracking cell movements and divisions without needing manual annotation.
  • * A U-Net network model using 3D CNNs achieves high detection and tracking accuracy of 98.38% and 98.70%, respectively, enhancing the study of cell dynamics in various contexts.
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Monkeypox is a zoonotic disease. Since the first human monkeypox case was detected in 1970, it has been prevalent in some countries in central and western Africa. Since May 2022, monkeypox cases have been reported in more than 96 non-endemic countries and regions worldwide.

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Viral diarrhea is one of the leading causes of morbidity and mortality in children. This study was conducted to disclose the etiological cause and epidemiological features of viral diarrhea among children in China. From 2009 to 2021, active surveillance was performed on pediatric patients with acute diarrhea and tested for five enteric viruses.

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Objectives: To identify whether the relationship between Zhang A, Zhang B, Zhang C and Zhang X is the half-sibling relationship whose mother is sister (hereinafter referred to as the special half-sibling relationship) or the common first cousin relationship and discuss the application of ITO method in discriminating the special kinship.

Methods: DNA was extracted from blood stain of four identified individuals, PowerPlex 21 System and AGCU 21+1 STR kit were used to detect autosomal STR genetic markers. Investigator Argus X-12 QS kit was used to detect the X chromosome STR genetic markers, the special half-sibling index (SHSI) and first cousin index (FCI) and their likelihood ratio (LR) were calculated by ITO method.

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Article Synopsis
  • * Researchers analyzed data from 12 newly diagnosed patients and 118 previously reported patients, all with biallelic MYO5B variants, noting that intestinal severity and cholestasis severity are influenced by the type of MYO5B variants present.
  • * Findings revealed that FIC patients commonly had non-null variants, particularly missense/in-frame variants in regions critical to MYO5B function, which were less frequent in MVID patients, affirming a
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Objectives: To study the molecular epidemiological characteristics of norovirus in children with acute gastroenteritis from 2017 to 2019.

Methods: A retrospective analysis was performed on the medical data of children with acute gastroenteritis who were admitted to Children's Hospital of Chongqing Medical University from January 2017 to December 2019. A total of 1 458 stool samples were collected from the children, and viral RNA was extracted.

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An outdoor solar assisted large-scale cleaning system (SALSCS) was constructed to mitigate the levels of fine particulate matter (PM) in urban areas of Xi'an China, providing a quasi-experimental opportunity to examine the biologic responses to the changes in pollution level. We conducted this outdoor SALSCS based real-world quasi-interventional study to examine the associations of the SALSCS intervention and changes in air pollution levels with the biomarkers of systemic inflammation and oxidative stress in healthy elders. We measured the levels of 8-hydrox-2-deoxyguanosine (8-OHdG), Interlukin-6 (IL-6), as well as tumor necrosis factor alpha (TNF-α) from urine samples, and IL-6 from saliva samples of 123 healthy retired participants from interventional/control residential areas in two sampling campaigns.

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  • Human parechoviruses (HPeVs) are significant pathogens in children, as evidenced by a hospital study in Chongqing, China, which found a 6.92% positivity rate among 10,212 pediatric patients tested across various infections.
  • The study revealed different positivity rates in three groups: 3.43% in respiratory infections, 14.94% in acute diarrhea, and 3.55% in hand, foot, and mouth disease, with a high co-infection rate of 75.2% among HPeV-positive patients.
  • Ten HPeV genotypes were identified, primarily HPeV1 and HPeV4 in the acute diarrhea group, alongside noted
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  • The study investigated the clinical features of children infected with COVID-19 compared to other respiratory infections like RSV, Influenza, and adenovirus, focusing on symptoms and cytokine profiles.
  • It involved 20 COVID-19 positive hospitalized children, 58 with other acute respiratory tract infections, and 20 healthy controls, with data collected on clinical symptoms and blood test results.
  • Findings revealed that COVID-19 patients were older and had milder symptoms than those with other infections, along with notable differences in immune response indicated by cytokine levels.
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Objective: The aim of the present study was to investigate the predictive value of transvaginal ultrasonography measurement of cervical length (CL) during the second trimester for spontaneous preterm birth.

Methods: Data from 1222 women with a single fetus pregnancy, who delivered at our hospital between March 2019 and May 2020, were retrospectively analyzed. CL was measured during the second trimester, with a length of <25 mm regarded as cervical shortening.

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  • Chronic hepatitis B virus (HBV) is a major global health issue, with covalently closed circular DNA (cccDNA) in the nucleus posing a challenge for curing chronic hepatitis B (CHB).
  • Recent findings highlight the role of histone modifications, particularly an active modification called histone succinylation (H3K122succ), in regulating the transcription of cccDNA.
  • The enzyme SIRT7 interacts with HBV proteins to desuccinylate histones and works alongside other enzymes to silence HBV transcription, suggesting that targeting cccDNA histone modifications could lead to new antiviral treatments.
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  • * Early intervention strategies, like exchange transfusion, have shown promise in reducing mortality rates, but standardized protocols for these treatments are lacking.
  • * The article discusses recent advancements in managing severe pertussis to enhance clinical treatment practices and guide future research.
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