OBJECTIVE To investigate the potential mechanism by which Juanxiao decoction improves bronchial asthma （hereinafter referred to as “asthma”） based on the nucleotide-binding domain leucine-rich repeat and pyrin domain-containing receptor 3 （NLRP3） inflammasome signaling pathway. METHODS Female SD rats were randomly assigned to normal group， model group and Juanxiao decoction low-， medium- and high-dose groups （0.36， 0.72 and 1.44 g/kg， calculated based on crude drug weight）， as well as positive control group （Dexamethasone acetate tablets， 0.2 mg/kg）， with 10 rats in each group. Except for the normal group， asthma models were established in the remaining groups via intraperitoneal injection of ovalbumin combined with aluminum hydroxide， followed by nebulized inhalation of ovalbumin. On day 14 of the experiment， rats in each group received intragastric administration of the corresponding solution or normal saline， once a day， for 7 consecutive days. Following the final administration， the following parameters were measured in each group： lung function indexes （forced vital capacity， forced expiratory volume in 0.3 second， peak expiratory flow）， serum levels of inflammatory markers （interleukin-1β， interleukin- 18）， and the percentages of inflammatory cells （lymphocytes， eosinophils， neutrophils） in bronchoalveolar lavage fluid. Histopathological changes in lung tissue were observed， and the protein and mRNA expressions of nuclear factor-kappa B （NF- κB）， NLRP3 and caspase-1 in lung tissue were detected. RESULTS Compared with the normal group， pathological changes such as alveolar wall thickening and inflammatory cell infiltration were observed in rats in the model group. All pulmonary function indicators were significantly reduced in rats in the model group and the administration groups. The levels of inflammatory markers， the percentages of inflammatory cells， and the protein and mRNA expressions of NF-κB， NLRP3 and caspase-1 were significantly elevated or up-regulated （P＜0.05）. Compared with the model group， pathological changes in rats in each dosage group of Juanxiao decoction were significantly alleviated， and all quantitative indicators showed dose-dependent improvements （P＜0.05）. CONCLUSIONS Juanxiao decoction can reduce airway inflammatory responses in asthmatic rats， alleviate lung function impairment， and improve pathological changes such as inflammatory cell infiltration. Those effects may be related to the inhibition of the NLRP3 inflammasome signaling pathway.

Objective:To investigate the feasibility and effectiveness of incision subcutaneous porous catheter combined with ropivacaine analgesia in enhanced recovery after laparoscopic gastrointestinal surgery.Methods:The clinical data of 140 patients underwent gastrointestinal surgery from August 2021 to April 2022 in Shanghai Fourth People′s Hospital, School of Medicine, Tongji University were retrospectively analyzed. Among them, 70 patients were given routine postoperative analgesia (control group), and 70 patients were given incision subcutaneous porous catheter combined with ropivacaine analgesia on the basis of routine postoperative analgesia (observation group). The visual analogue score (VAS) 4, 24, 32, 48, 56 and 72 h after operation was evaluated; and the complications of subcutaneous catheterization, incision infection, postoperative nausea vomiting, neurological symptoms, time to extubation, patient satisfaction degree, recovery time of intestinal function and hospital stay were recorded.Results:The VAS 4, 24, 32, 48, 56 and 72 h after operation in observation group was significantly lower than that in control group: 1.000 (- 0.250, 2.250) scores vs. 1.000 (- 1.000, 3.000) scores, 2.000 (1.000, 3.000) scores vs. 4.000 (2.000, 6.000) scores, 1.000 (0.000, 2.000) scores vs. 3.000 (1.000, 5.000) scores, 2.000 (1.000, 3.000) scores vs. 3.000 (1.750, 4.250) scores, (1.100 ± 0.934) scores vs. (2.085 ± 0.943) scores and (0.985 ± 0.842) scores vs. (1.814 ± 0.921) scores, and there was statistical difference ( P<0.05 or <0.01). The recovery time of intestinal function and hospital stay in observation group were significantly shorter than that that in control group: (1.743 ± 0.557) d vs. (2.200 ± 0.714) d and (8.043 ± 1.160) d vs. (8.757 ± 1.221) d, and there were statistical difference ( P<0.01); there were no statistical differences in the rate of incision infection, incidence of postoperative nausea vomiting, time to extubation and patient dissatisfaction rate between two groups ( P>0.05); there were no the complications of subcutaneous catheterization and neurological symptoms in two groups. Conclusions:The incision subcutaneous porous catheter combined with ropivacaine analgesia after laparoscopic gastrointestinal surgery is a safe, effective and feasible method. Multimodal analgesia under enhanced recovery after surgery can increase the postoperative recovery after gastrointestinal operations and shorten the postoperative hospital stay.

Objective To investigate and analyze the similarities of allergens in children of the same family with susceptibility to the same genetic background and environmental factors. Methods From January 2013 to December 2017,a total of 142 pairs of children with allergic diseases aged 0-15 years and their siblings ( 284 cases) were collected from the outpatient or hospitalized treatment of Pediatrics and otolaryngology department of the First People′s Hospital of Foshan City,the Third Affiliated Hospital of Sun Yat-sen University. The elder group was brother or sister (142 cases),and the younger group was brother or sister ( 142 cases ) . The serum allergen sIgE was tested by Allergy Screen allergen detection system (developed by Germany MEDIWISS Company) and the similarity of allergens was analyzed. Results A total of 142 siblings ( 284 cases ) had systemic symptoms of allergic diseases in varying degrees, including respiratory symptoms ( cough ( 47 cases in the old group,32 cases in the young group), χ2 ＝3. 946, P＝0. 047),nasal obstruction ( 41 cases in the old group,19 cases in the young group, χ2 ＝ 10. 227, P ＝0. 001),runny nose (46 cases in the old group,26 cases in the young group,χ2＝7. 442,P＝0. 006), gastrointestinal symptoms (abdominal pain (11cases in the old group,7 cases in the young group,χ2＝4. 63, P＝0. 031),skin symptoms(urticaria (18 cases in the old group,8 cases in the young group,χ2＝4. 234,P＝0. 037)) and so on,the difference was statistically significant. Some children have multiple organ system symptoms at the same time. There was no significant difference between the old group and the young group in the early use of antibiotics,mode of production and feeding mode within 6 months (all P＞0. 05). Among the two groups,house dust mite and cockroach (r＝0. 831,P＜0. 05),dog hair and house dust ( r＝0. 717,P＜0. 05),cypress,elm,willow,birch,oak,maple,walnut,sycamore,poplar and Dianqing,branching,yanqu, and heiqu ( r ＝ 0. 683, P＜ 0. 05 ) . Conclusion With the same genetic background and the same environmental factors,the allergens in siblings are similar.

Objectives:To investigate the effect of glutamine on the shape of residual intestine and colon in rats with short bowel syndrome.　Methods:23 male Sprague-Dawley rats,underwent a 80% small bowel resection,were randomly divided into three groups:food group(n=8) rats,fed rat chow and water libitum after operation;TPN group(n=8),infused with Gln-supplied TPN;and normal control group.On seventh day after operation,rats were weighted and remaining jejunum、remaining ileum and colon were harvested for histological observation(light microscopy and electron microscopy).　Results:There was significant difference in rat average weight between food group and Gln group after operation.Jejunal mucosal villus height(VH) and mucosal thickness(MT) and ileal mucosal VH in food group were significantly increased than those in control group.Jejunal mucosal VH and MT in control group were significantly higher than in TPN group.Ileal mucosal crypt depth(CD) and MT in control group were also significantly higher than in TPN group.Jejunal and ileal mucosal VH、CD and MT in Gln group were significantly higher than in TPN group.Colonic MT in food group was significantly higher than in control group.Colonic MT in Gln group was significantly bigger than in TPN group.　Conclusions:After 80% intestinal resection,the remaining intestine can develop the adaptation,but the adaptation is incomplete.TPN therapy can maintain body weight,but only TPN can not result in the adaption.Gln-supplied TPN can stop the remaining itestinal mucosal atrophy,and promote the remaining intestinal adaptation and colonic mucosal hypertrophy.