Objective To analyze the laboratory determination results of hand-foot-mouth disease(HFMD)and explore its sig-nificance.Methods Pharyngeal swab specimens were collected from 502 children with HFMD(severe case:104 cases and mild case:398 cases).Specific RNA of enterovirus primer(EV),enterovirus71 (EV71)and coxsackievirus A16(CA16)were detected by real-time fluorescence polymerase chain reaction(RT-PCR).Simultaneously,white blood cell (WBC),direct bilirubin(DBIL),alanine transarninase(ALT),creatine kinase MB isoenzyme(CK-MB)and lactic dehydrogenase (LDH )were determined,and the results were analyzed.Results Among the 502 children,384 cases were positive for EV,262 cases were positive for EV71,and 39 cases were positive for CA16.The positive rates were 76.49%,52.19% and 7.76%,respectively.In the 104 HFMD severe cases,EV71 positive rate was 92.31%(96/104).There were clearly more boys than girls.The age distribution was mainly in the group under 3-year-old(402 cases,80.08%).In the group under 3-year-old,there were 97 severe cases(93.27%),and the EV71 positive rate was 92.78%(90/97).Serum levels of WBC,DBIL,ALT,CK-MB and LDH were higher in severe HFMD group than in mild group(P <0.05).Conclusion The HFMD occurred mostly at the children under 3-year-old.The HFMD appeared is mainly related to the EV infection,and EV71 is the main pathogen causing the severe cases of HFMD.

OBJECTIVETo establish a mouse model of spinal metastasis of human prostate cancer using fluorescence-labeled PC-3 cells to allow direct observation by in vivo imaging.

METHODSPC-3 cells were infected with a lentivirus carrying green fluorescence protein (GFP) gene. The GFP-positive cell clone was expanded and prepared into cell suspension for injection into the inferior vena cava of nude mice. The tumor growth and metastasis in the mice was directly observed using an in vivo fluorescence imaging system. The tumor-bearing mice were sacrificed after 3 months for histological examination with HE staining.

RESULTSThe labeled cells showed stable GFP expression both in vitro and in vivo. One week after cell injection, green fluorescence signals were detected by the in vivo fluorescence imaging system in the lower back of the mice, and at 4 weeks, the fluorescent tumor mass increased with a bone metastasis rate of 19% (3/16). Dissection of the mice at 3 months revealed lumbar tumor infiltration in 3 mice, showing a consistent result with in vivo fluorescence imaging.

CONCLUSIONThe nude mouse model of spinal bone metastasis of human prostate cancer established using GFP-labeled PC-3 cells facilitates further study of bone metastasis of prostate cancer.

Animals ; Cell Line, Tumor ; Disease Models, Animal ; Green Fluorescent Proteins ; Humans ; Male ; Mice ; Mice, Inbred BALB C ; Mice, Nude ; Neoplasm Metastasis ; Prostatic Neoplasms ; pathology ; Spinal Neoplasms ; secondary

Provirus integration site Moloney murine leukemia virus (Pim-1) is a proto-oncogene reported to be associated with cell proliferation, differentiation and survival. This study was to explore the neuroprotective role of Pim-1 in a rat model subjected to optic nerve crush (ONC), and discuss its related molecules in improving the intrinsic regeneration ability of retinal ganglion cells (RGCs). Immunofluorescence staining showed that AAV2- Pim-1 infected 71% RGCs and some amacrine cells in the retina. Real-time PCR and Western blotting showed that retina infection with AAV2- Pim-1 up-regulated the Pim-1 mRNA and protein expressions compared with AAV2-GFP group. Hematoxylin-Eosin (HE) staining, γ-synuclein immunohistochemistry, Cholera toxin B (CTB) tracing and TUNEL showed that RGCs transduction with AAV2-Pim-1 prior to ONC promoted the survival of damaged RGCs and decreased cell apoptosis. RITC anterograde labeling showed that Pim-1 overexpression increased axon regeneration and promoted the recovery of visual function by pupillary light reflex and flash visual evoked potential. Western blotting showed that Pim- 1 overexpression up-regulated the expression of Stat3, p-Stat3, Akt1, p-Akt1, Akt2 and p-Akt2, as well as βIII-tubulin, GAP-43 and 4E-BP1, and downregulated the expression of SOCS1 and SOCS3, Cleaved caspase 3, Bad and Bax. These results demonstrate that Pim-1 exerted a neuroprotective effect by promoting nerve regeneration and functional recovery of RGCs. In addition, it enhanced the intrinsic regeneration capacity of RGCs after ONC by activating Stat3, Akt1 and Akt2 pathways, and inhibiting the mitochondrial apoptosis pathways. These findings suggest that Pim-1 may prove to be a potential therapeutic target for the clinical treatment of optic nerve injury.

OBJECTIVETo investigate the association between small ubiquitin-related modifier-1 (SUMO-1) gene rs6709162, rs7599810, rs7580433 polymorphism and non-syndromic oral clefting (NSOC).

METHODSOur study consisted of 208 Ningxia NSOC patients, their parents (189 fathers and 176 mothers), 172 nuclear families (patients and their parents), and 284 normal controls. DNA was extracted and polymerase chain reaction-restriction fragment length polymorphisms (PCR-RFLP) was used to identify rs6709162, rs7599810, rs7580433 genotypes of the samples. The data was analyzed by case-control analysis, family based associated test (FBAT), and transmission disequilibrium test (TDT).

RESULTSCase-control study found that TT genotype's frequency was significantly different in cleft lip and cleft palate group compared with the control group at rs7599810 of SUMO-1 (P=0.01, P=0.01). TDT test showed that rs7599810's T allele had over-transmitted (P=0.00) in cleft lip and palate group. FBAT analysis revealed that distribution of rs7599810's TT genotype and T allele was significantly different (P=0.00, P=0.00). TDT test showed that rs6709162's C allele in cleft palate and cleft lip and palate patients had over-transmitted (P=0.00, P=0.01). rs7580433's G allele in cleft lip group had over-transmitted (P=0.05).

CONCLUSIONSUMO-1 gene polymorphism is associated with NSOC.

Case-Control Studies ; Cerebellar Ataxia ; Cleft Lip ; Cleft Palate ; Female ; Genotype ; Humans ; Intellectual Disability ; Male ; Polymerase Chain Reaction ; Polymorphism, Genetic ; SUMO-1 Protein ; genetics ; Ubiquitins

Acetyl dipeptide-1 cetyl ester (AD-1) is a synthetic peptide composed of acetic acid and cetyl alcohol with arginine and tyrosine, which has certain anti-inflammatory and skin barrier enhancement effects, has been used in cosmetics for sensitive skin.Meanwhile, the ingredient has also been used in anti-aging cosmetics, but there is a lack of published scientific evidence on anti- senescence aspect.In this study, we investigated the related effects of AD-1 by evaluating its in vitro antioxidant and antiglycation efficacies.Furthermore, we established a photoaging model on primary rat dermal fibroblasts by repeated exposures to UVA irradiation.MTT assay was used to detect the effects of AD-1 on the cell viability.RT-qPCR was used to determine the effects of AD-1 on the mRNA levels of senescence-related p21, p53, MMPs, IL6, Col1, Col3 and autophagy-related p62, ATG5, ATG7.Western blot was used to detect the effects of AD-1 on the protein levels of p16, p21, p53, Col1, LC3B and p62.SA-β-gal was performed to indicate senescence level of the cell.MDC was performed to indicate autophagy level.Intracellular reactive oxygen species were monitored by fluorescent probes DCFH-DA.The results showed that AD-1 could reduce UVA-induced the cell damage and regulate the abnormal expression of mRNA levels. It alleviated the abnormal protein levels of p16, p21, p53, Col1, LC3B and p62 induced by UVA. These results suggested that AD-1 has not only antioxidant and antiglycation effects but also can activate autophagy to achieve anti-senescence effect.

Objective To explore the spatial-temporal characteristics of influenza epidemic in Hubei from 2009 to 2020, and make short-term prediction to provide reference for influenza prevention and control strategies. Methods Time series seasonal decomposition model and geographic spatial analysis method were used to analyze spatial-temporal evolution characteristics of influenza prevalence in Hubei during 2009-2020. LSTM neural network model was used to predict the monthly influenza incidence from 2020 to 2023. Results Influenza was mainly prevalent in the end of winter and the beginning of spring (December to March) were periods of high influenza incidence. In recent years, the influenza pandemic has shown an increasing trend. Influenza epidemic was characterized by significant spatial differentiation, with ^“A-shaped point-axis structure^” surrounding counties were more severe . The epidemic center of gravity experienced a spatial evolution process from west to east and from north to south. LSTM neural network model predicted that although the influenza incidence rate from January 2020 to December 2023 is lower than that in 2019, it is still at a high level, and shows a peak epidemic in winter and spring. Conclusion Influenza epidemic in Hubei is characterized by a high epidemic period in late winter and early spring, and the southeast of Hubei is the key epidemic area. It is suggested that publicity and prevention and control should be strengthened according to people, time and place, and key populations and areas should be encouraged to receive influenza vaccines in advance.

Objective: Preliminary study on the clinical effect of preoperative ultrasound endoscopy combined with staining labeling technique to locate the actual boundary of esophageal and gastric cancer Methods: From September 1, 2015 to October 30, 2017, 18 patients with esophageal adenocarcinoma were enrolled in this study. The actual boundaries of esophageal and gastric-derived adenocarcinoma lesions were localized by endoscopic ultrasonography and staining. There were 10 males and 8 females. After completing the preoperative examination, 1-2 days before operation, endoscopic ultrasonography was used to locate the edge of the lesion. Two point injection of carbon nano suspension was used to mark the location of 1cm at the longest distance from the longitudinal axis of the tumor. According to the length of longitudinal axial staining, the thoracotomy was performed. Intraoperative proximal margin resection was used to send frozen pathology. According to the results of freezing, the operation was decided. After the operation, the specimens from the margin of the tumor were segmented into paraffin section, which was about 0.5cm in each segment, and the tumor cells were observed under the electron microscope at all levels of the paraffin sections. Results: The average time of preoperative endoscopic ultrasonography staining was(10.16±1.38) min, and the diameter of nano carbon diffusion was(1.43±0.41)cm. All patients in the operation could clearly see the nano carbon staining area under the naked eye. In the field, the average time of locating lesions was(1.27±0.53)min. 5 patients underwent thoracoabdominal surgery and 13 underwent abdominal surgery. The average length of the cut margin of the tumor was(4.74±1.12)cm, and the frozen pathology of the incision margin was negative, and no additional operation was performed. The routine pathology confirmed that all the specimens were negative. Conclusion The staining and labeling technique for adenocarcinoma of the esophagogastric junction under endoscopic ultrasonography can detect the tumor edge and the scope of invasion accurately. It provides guidance and guarantee for the smooth implementation of AEG precision surgery. It is a safe, rapid and effective positioning technique.

Pulmonary blast injury has become the main type of trauma in modern warfare, characterized by externally mild injuries but internally severe injuries, rapid disease progression, and a high rate of early death. The injury is complicated in clinical practice, often with multiple and compound injuries. Currently, there is a lack of effective protective materials, accurate injury detection instrument and portable monitoring and transportation equipment, standardized clinical treatment guidelines in various medical centers, and evidence-based guidelines at home and abroad, resulting in a high mortality in clinlcal practice. Therefore, the Trauma Branch of Chinese Medical Association and the Editorial Committee of Chinese Journal of Trauma organized military and civilian experts in related fields such as thoracic surgery and traumatic surgery to jointly develop the Clinical treatment guideline for pulmonary blast injury ( version 2023) by combining evidence for effectiveness and clinical first-line treatment experience. This guideline provided 16 recommended opinions surrounding definition, characteristics, pre-hospital diagnosis and treatment, and in-hospital treatment of pulmonary blast injury, hoping to provide a basis for the clinical treatment in hospitals at different levels.