Respiratory tract and the external environment are interlinked,long-term exposure to a variety of physical and chemical substances and pathogenic microorganism stimulation,the antimicrobial activity of proteins secreted by epithelial cells is critical for maintaining health.short palate,lung,and nasal epithelium clone 1 (SPLUNC1) is a lately discovered protein with antibacterial activity.Its structure is similar to the bactericidal permeability-increasing protein(BPI).SPLUNC1 binds specifically to lipopolysaccharide(LPS) of cell walls of gram-negative bacteria,and contributes to maintain homeostasis and a sterile environment in the lung,and acts as a goalkeeper role in the rapid activation of innate immunity and the initiation of adaptive immunity.SPLUNC1 is expected to become an antimicrobial agents for the treatment of respiratory tract bacterial infectious diseases.

Objective To examine the changes of histological parameters of radial artery in uremia,and to explore their effects on arterial stiffness.Methods Sixty uremic patients underwent arteriovenous fistula surgery for hemodialysis and 20 healthy subjects received healthy examination were collected as uremia group and control group, respectively.Segments of radial arteries were obtained from all of uremic subjects and were evaluated by HE, Masson, van Kossa staining and electron microscopy.The expressions of osteopontin (OPN), α-SMA and elastin in arterial wall were detected by immunostaining, and apoptotic cells were determined by TUNEL assay.All of the subjects in the two groups received brachial ankle pulse wave velocity (baPWV) examination and the results were compared.The associations among histological parameters and baPWV were analyzed.Results More than one half (34/60) of artery samples presented uniformly thickening intima, in which most of cells expressed α-SMA and a few cells underwent apoptosis.The subendothelial matrix was abundant in collagen fibers, and no calcium deposition was found.The media thickened obviously, with increased collagen fibers, reduced elastin, unchanged α-SMA expression, and a few apoptotic smooth muscle cells.Two thirds uremic arteries expressed OPN, of which only one half had significant calcium deposition.The adventitia thickened and no calcium deposition was found.The baPWV level in uremic subjects was ( 18.5 ± 3.2 ) m/s, far greater than that in control subjects ( P ＜ 0.001 ).Statistical analysis showed that baPWV value was correlated with media thickness, calcification degree, and collagen content positively, and with elastin expression negatively.For diabetic uremic subjects, the OR values of vascular calcium deposition and remarkably-elevated baPWV value were 3.1, 2.3, respectively.Conclusions Radial arterial intima often presents hyperplasia which is not related with baPWV increment in uremia.Arterial media calcification and collagen content incremental are the most two protuberant characteristics in uremia, especially in ones accompanied with diabetes.Medical calcification, collagen accumulation, and e]astin reduction may contribute to the increased arterial stiffness in uremia.

Objective To investigate the ultrasound characteristics of congenital cystic adenomatoid malformation (CCAM). Methods The ultrasonographic features of 21 cases of fetal CCAM confirmed by prenatal ultrasound were analyzed. And ultrasound ifndings were compared with the postnatal thoracic computed tomography (CT), surgical result and follow-up data. Results (1) Prenatal ultrasonographic ifndings:2 cases of CCAM typeⅠ(10%, 2/21), 13 cases of typeⅡ(62%, 13/21), and 6 cases of typeⅢ(28%, 6/21). Of them, 95%(20/21) lesions were located in unilateral thorax, while 5%(1/21) in bilateral thorax. CCAM was ifrst detected at 18th-25th gestational week with a median of 22nd week. The CVR was<1.6 and>1.6 in 16 (76%, 16/21) and 5 (24%, 5/21) cases respectively. After reaching the maximum volume, the size of mass remained stable in 8 cases and regressed in 13 cases with even complete remission in 5 cases. There were mediastinal shift in 19 fetuses (90%, 19/21), polyhydramnios in 6, and concomitant structural abnormalities in 3 cases such as pulmonary sequestration, diaphragmatic hernia and fetal hydrops. (2) Clinical outcomes:15 newborns were conifrmed as CCAM by CT, in which 9 cases underwent surgical resection. One case was conifrmed by autopsy. Nineteen cases showed good prognosis. Whereas 1 pregnancy with fetal hydrops was terminated, and 1 fetus with diaphragmatic hernia died after birth. Conclusions Dynamic prenatal ultrasound assessment is the key factor in prognosis prediction of fetal CCAM. CCAM without other structural abnormalities has a good outcome.

Objective To investigate the pathogenic bacteria distribution, antibiotics resistance, and clinical features of childhood bacterial meningitis (BM). Methods Clinical data from BM children with positive cerebrospinal lfuid culture were retrospectively analyzed from March 2004 to March 2015. According to age, the BM children were divided into neonates group (0-28 days), infants group (—1 year), and children group (≥1 year). According to the onset time, the BM children were divided into the early group (March 2004 to March 2010) and the late group (April 2010 to March 2015). According to the clinical situation, the BM children were divided into the trauma and surgery secondary infection group and the control group. Results A total of 100 BM children were recruited. One hundred and two strains of pathogens were detected, 62 (60.8%) strains of Gram positive bacteria and 40 (39.2%) strains of Gram negative bacteria. The main pathogens were Streptococcus pneumoniae (33 strains), Escherichia coli (22 strains), and Streptococcus agalactiae (10 strains). The proportion of Streptococcus agalactiae was higher in the late group (18.8%(9 cases)) than that in the early group (1.9%(1 case)) (χ2=6.406, P=0.011). The proportion of coagulase-negative staphylococci was higher in the trauma and surgery secondary infection group than that in the control group (χ2=6.631, P=0.010). Drug sensitivity analysis found that 60.0%of Escherichia coli produced extended-spectrumβ-lactamases (ESBLs) in the control group, while the only one strain of Escherichia coli in the trauma and surgery secondary infection group was ESBLs negative. Streptococcus pneumoniae were sensitive to vancomycin and linezolid. Streptococcus agalactiae were all found in the control group, which were all sensitive to penicillin and linezolid. The sensitive rate to vancomycin was only 70%. The incidence of complications in neonates group, infants group, and children group was 55.0%(22/40), 78.6%(33/42), and 33.3%(6/18), respectively. The difference was statistically signiifcant (χ2=11.848, P<0.05). The most common complications in these three age groups were ventricular dilatation (40.9%), subdural effusion (45.5%), and hydrocephalus (40.0%), respectively. Thirty-ifve children were cured, 41 children were improved and discharged, 22 children were not cured and left the hospital, and 2 children died. Conclusions Streptococcus pneumoniae, Escherichia coli, and Streptococcus agalactiae were the predominant pathogens in childhood BM. The Streptococcus agalactiae infection is increased in the late group. The complications is varied in different age groups..

Objective To understand the prevalence of Salmonella and the characteristics of drug resistance genes in General Hospital of People's Liberation Army, and to provide evidence for the prevention and treatment of Salmonella infection. Methods A retrospective study was conducted to collect 78 clinical isolates of Salmonella from 2015 to 2017. The age of the patients was 49 ± 21 years old. The infected patients were mainly young and middle-aged. The clinical samples mainly came from feces and venous blood, accounting for 44.87％(35/78) and 33.33％(26/78), respectively. After serotype identification, drug sensitivity test and whole genome sequencing, multilocus sequence typing and drug resistance genotyping were performed. Cluster of Cefotaxime or Ciprofloxacin resistant Salmonella was analyzed. Results Salmonella group D (53.85％) and Salmonella group C (21.79％) were dominant Salmonella serotype. ST11 was mainly ST type. Drug sensitivity test showed that the multidrug resistance rate of Salmonella was 64.11％ (50/78). The sensitivity to all antimicrobial agents' rate was 25.64 (20/78). The resistance rate of Salmonella to nalidixic acid was 65.38％(51/78). The most common drug resistance gene of Salmonella was extended-spectrum β-lactam drug resistance gene, accounting for 78.21％ (61/78). Conclusions The ST-type and carrying resistance genes of Salmonella in this hospital were diverse. Most pathogens were multi-drug resistant to antimicrobial agents. Molecular typing and drug resistance gene analysis of Salmonella and construction of resistant strains to determine the inheritance of Salmonella relationships have a certain clinical significance.

This article explored the treatment of laryngopharyngeal reflux disease （LPRD） from the perspective of ascending and descending of qi. It is believed that the disorder of qi movement of the middle jiao （焦） is the key to the pathogenesis of LPRD. The ascending and descending disorder of liver and lung is an important factor in its prolongation and progression. The treatment of LPRD should follow the nature of the spleen and stomach， with the focus on fortifying and transporting the spleen and the stomach， supplemented by soothing the liver and diffusing the lung. The herbs such as Cangzhu （Rhizoma Atractylodis）， Fuling （Poria）， Yiyiren （Semen Coicis）， Gegen （Radix Puerariae Lobatae） and Shanyao （Rhizoma Dioscoreae） could be used for fortifying and circuiting the center earth， and Chaihu （Radix Bupleuri）， Muxiang （Radix Aucklandiae）， Zhiqiao （Fructus Aurantii） and Baishao （Radix Paeoniae Alba） for soothing the liver and nourishing the blood to harmonize the ascending and descending. Jiegeng （Radix Platycodonis） and Xuanfuhua （Japanese Inula Flower） are supplemented to diffuse and direct lung qi downward thereby mediating the center jiao. In this way， the qi movement of the spleen and stomach is restored， and the ascending and descending between the liver and lung are harmonized， and therefore the disease is cureda.

Surgical operation is the main treatment of oral and maxillofacial tumors.Dysphagia is a common postoperative complication.Swal-lowing disorder can not only lead to mis-aspiration,malnutrition,aspiration pneumonia and other serious consequences,but also may cause psychological problems and social communication barriers,affecting the quality of life of the patients.At present,there is no systematic evalua-tion and rehabilitation management plan for the problem of swallowing disorder after oral and maxillofacial tumor surgery in China.Combining the characteristics of postoperative swallowing disorder in patients with oral and maxillofacial tumors,summarizing the clinical experience of ex-perts in the field of tumor and rehabilitation,reviewing and summarizing relevant literature at home and abroad,and through joint discussion and modification,a group of national experts reached this consensus including the core contents of the screening of swallowing disorders,the phased assessment of prognosis and complications,and the implementation plan of comprehensive management such as nutrition management,respiratory management,swallowing function recovery,psychology and nursing during rehabilitation treatment,in order to improve the evalua-tion and rehabilitation of swallowing disorder after oral and maxillofacial tumor surgery in clinic.

Cryoablation therapy with explicit anti-tumor mechanisms and histopathological manifestations has a long history.A large number of clinical practice has shown that cryoablation therapy is safe and effective,making it an ideal tumor treatment method in theory.Previously,its efficacy and clinical application were constrained by the limitations of refrigerants and refrigeration equipment.With the development of the new generation of cryoablation equipment represented by argon helium knives,significant progress has been made in refrigeration efficien-cy,ablation range,and precise temperature measurement,greatly promoting the progression of tumor cryoablation technology.This consensus systematically summarizes the mechanism of cryoablation technology,indications for oral mucosal melanoma(OMM)cryotherapy,clinical treatment process,adverse reactions and management,cryotherapy combination therapy,etc.,aiming to provide reference for carrying out the standardized cryoablation therapy of OMM.

【Objective】 To analyze the related factors of emotional and behavioral abnormalities in children with overactive bladder (OAB). 【Methods】 OAB children (aged 6 to 16 years) in a survey of 5 032 children from a county in Henan Province during Sep.2022 and Dec.2022 were identified and surveyed with Overactive Bladder Symptom Score (OABSS), Strength and Difficulties Questionnaire (SDQ) and Pediatric Sleep Questionnaire (PSQ). According to the SDQ score, they were divided into abnormal group (SDQ≥20) and normal group. 【Results】 There were 35.7%(137/385) cases in the abnormal group and 64.3% (248/385) in the normal group. Gender, education level of caregivers, body mass index (BMI), age, constipation, enuresis and severity of OAB were significantly associated with emotional and behavioral abnormalities (P<0.05). Children in the abnormal group showed significant differences in emotional symptoms, conduct problems, hyperactivity symptoms, peer interaction and sleep (P<0.001). Multivariate regression analysis revealed significant differences in gender, educational level of caregi-vers, BMI, age, constipation, enuresis, severity of OAB and PSQI between the two groups (P<0.05). 【Conclusion】 The prevalence of emotional and behavioral abnormalities is high in children with OAB, which is related to female gender, high BMI, puberty, constipation, enuresis and severity of OAB.

OBJECTIVE: To study the chemical constituents of the EtOAc extract of Armillaria gallica 012m. METHODS: The chemical constituents of the EtOAc extract of A. gallica 012m were isolated and purified by various column chromatography and their structures were elucidated on the basis of the 1D and 2D NMR spectroscopic and HRESIMS data. Cytotoxicity of all isolates against A549, HCT-116, M231 and W256 human tumor cells was determined by the MTT method. RESULTS: A new sesquiterpene aryl ester, armimelleolide C ( 1), and eight known ones including armillarivin ( 2), melleolide F ( 3), 6'-chloromelleolide F ( 4), melleolide ( 5), melleolide K ( 6), melledonol ( 7), 13-hydroxydihydromelleolide ( 8), and armillane ( 9), were isolated from the EtOAc extract of A. gallica 012m. All isolates showed potential cytotoxic activities against at least one of the human cancer cell lines with IC₅₀ values ranging from (3.17 ± 0.54) to (17.57 ± 0.47) μmol/L. Compound 1 showed significant inhibitory activity against M231 with an IC₅₀ value of (7.54 ± 0.24) μmol/L compared with paclitaxel as the positive control. Compounds 2, 3, and 7, 9 showed obvious inhibitory activity against HCT-116 and were better than that of the positive control. CONCLUSION The chemical constituents including a new sesquiterpene aryl ester armimelleolide C ( 1) from the EtOAc extract of A. gallica 012m have a variety of structures and potential antitumor activities.