Cognitive impairment is the main clinical manifestation of many nervous system diseases such as stroke,multiple sclerosis,and neurodegeneration,and neuroinflammation is one of the key mechanisms for the onset of cognitive disorders.Chemokines are a class of highly conserved small-molecule secretory proteins that bind to the corresponding chemokine receptors located on cell mem-brane,activating downstream signaling pathways and playing an important role in cell migration,proliferation,differentiation,and sur-vival.In the central nervous system,chemokines and their receptors are involved in immune response and can exert a certain regulatory effect on neuroinflammation.This article reviews the research advances in chemokines and their receptors in cognitive disorders,in or-der to provide new insights and targets for the early diagnosis and treatment of related diseases.

Objective To explore the medication patterns as well as the potential mechanism of action of traditional Chinese medicine in the treatment of presbycusis based on data mining and network pharmacology.Methods Search for the literatures on the treatment of presbycusis with traditional Chinese medicine in CNKI,Wanfang Data Knowledge Service Platform and VIP,conduct visual analyses such as association rule analysis and cluster analysis on them,and summarize the medication patterns and core drug combinations.Predict the action targets of drugs and diseases through network pharmacology,and obtain core targets and pathways.Results A total of 22 literatures were included,and 22 traditional Chinese medicine prescriptions were obtained,involving 72 kinds of traditional Chinese medicines,with a total frequency of administration of 238 times.The four natures of the medicine were mainly warm,the five flavors were mainly sweet,bitter and pungent,and channel tropism were mainly liver meridian and kidney meridian.The core drug combination was Shanzhuyu and Shudihuang.Network pharmacological analysis showed that this combination may improve presbycusis by influencing core targets such as protein kinase B(Akt)1 and interleukin-6,thereby intervening in related pathways such as advanced glycation end product/advanced glycation end product receptor signaling pathway and the phosphoinositide 3-kinase/Akt signaling pathway.Conclusion The treatment of presbycusis with traditional Chinese medicine mainly focuses on invigorating kidney for consolidating semen,while also circulate and nourish blood.Network pharmacology predicts the key mechanisms of core high-frequency drug treatment for presbycusis,providing data support and theoretical basis for the clinical treatment of traditional Chinese medicine.

Objective To explore the medication patterns as well as the potential mechanism of action of traditional Chinese medicine in the treatment of presbycusis based on data mining and network pharmacology.Methods Search for the literatures on the treatment of presbycusis with traditional Chinese medicine in CNKI,Wanfang Data Knowledge Service Platform and VIP,conduct visual analyses such as association rule analysis and cluster analysis on them,and summarize the medication patterns and core drug combinations.Predict the action targets of drugs and diseases through network pharmacology,and obtain core targets and pathways.Results A total of 22 literatures were included,and 22 traditional Chinese medicine prescriptions were obtained,involving 72 kinds of traditional Chinese medicines,with a total frequency of administration of 238 times.The four natures of the medicine were mainly warm,the five flavors were mainly sweet,bitter and pungent,and channel tropism were mainly liver meridian and kidney meridian.The core drug combination was Shanzhuyu and Shudihuang.Network pharmacological analysis showed that this combination may improve presbycusis by influencing core targets such as protein kinase B(Akt)1 and interleukin-6,thereby intervening in related pathways such as advanced glycation end product/advanced glycation end product receptor signaling pathway and the phosphoinositide 3-kinase/Akt signaling pathway.Conclusion The treatment of presbycusis with traditional Chinese medicine mainly focuses on invigorating kidney for consolidating semen,while also circulate and nourish blood.Network pharmacology predicts the key mechanisms of core high-frequency drug treatment for presbycusis,providing data support and theoretical basis for the clinical treatment of traditional Chinese medicine.

The comparison between traditional Chinese medicine Jinzhen oral liquid (JZOL) and Western medicine in treating children with acute bronchitis (AB) showed encouraging outcomes. This trial evaluated the efficacy and safety of the JZOL for improving cough and expectoration in children with AB. 480 children were randomly assigned to take JZOL or ambroxol hydrochloride and clenbuterol hydrochloride oral solution for 7 days. The primary outcome was time-to-cough resolution. The median time-to-cough resolution in both groups was 5.0 days and the antitussive onset median time was only 1 day. This randomized controlled trial showed that JZOL was not inferior to cough suppressant and phlegm resolving western medicine in treating cough and sputum and could comprehensively treat respiratory and systemic discomfort symptoms. Combined with clinical trials, the mechanism of JZOL against AB was uncovered by network target analysis, it was found that the pathways in TRP channels like IL-1β/IL1R/TRPV1/TRPA1, NGF/TrkA/TRPV1/TRPA1, and PGE2/EP/PKA/TRPV1/TRPA1 might play important roles. Animal experiments further confirmed that inflammation and the immune regulatory effect of JZOL in the treatment of AB were of vital importance and TRP channels were the key mechanism of action.

Objective To investigate the job burnout of marines and analyze the mediating role of psychological resilience between anxiety and job burnout of marines.Methods A total of 230 marines were chosen as research objects,and 147 servicemen stationed on island were enrolled as control.Military job burnout scale was used to evaluate their job burnout levels.Connor-Davidson resilience scale(CD-RISC)and state trait anxiety inventory(STAI)were used to evaluate their psychological resilience and anxiety,respectively.Results The degree of job burnout of marines was significantly lower than that of the control group(P<0.001).Job burnout was negatively correlated with psychological resilience(P<0.001)and positively correlated with anxiety(P<0.001).Psychological resilience was negatively correlated with anxiety(P<0.001).Psychological resilience played a mediating role in the influence of anxiety on the job burnout of marines(indirect effect was 0.011[95%CI 0.002 to 0.021]).Conclusion Marines have a low level of job burnout.Anxiety is an important factor of job burnout.Anxiety can not only directly cause job burnout,but also aggravate job burnout by affecting the level of psychological resilience.It is very important to relieve anxiety and improve psychological resilience for reducing job burnout of marines.

Objective:In this study, the role of IL-17 in the pathogenesis of idiopathic myositis (IIM) was preliminarily investigated by detecting the expression of IL-17 in the muscle tissues of patients with idiopathic inflammatory myositis (IIM) and normal controls.Methods:Twenty-eight patients (20 in DM group with dermatomyositis and 8 in ASS group with anti-synthase syndrome) who were diagnosed with IIM after muscle biopsy and autoantibody detection in our hospital for the first time from October 2019 to August 2021 were included. Twelve cases with normal muscle tissue matched for age and sex were included as the control group. Western blot and immunohistochemical techniques were used to detect the expression level of IL-17 in muscle tissue, and enzyme-linked immunosorbent assay (ELISA) was used to detect serum IL-6. Mann-Whitney U rank sum test was used to compare the difference of IL-17 expression in muscle tissue between the two groups, and non-parametric test was used for comparison between multiple groups. Chi-square test and Spearman rank correlation analysis were used, and P<0.05 was considered statistically significant. Results:① The expression level of IL-17 in IIM muscle tissue[1.63(1.30, 2.05)pg/ml was higher than that in control group[1.00(0.96, 1.00)pg/ml, and the difference was statistically significant ( Z=-3.52, P<0.001). The difference be-tween DM[1.94(1.58, 2.14)pg/ml] and ASS[1.22(1.04,1.55)pg/ml was statistically significant ( Z=-3.20, P=0.001). ② Compared with healthy control group [4.08(3.01, 5.67)pg/ml, the expression of IL-6 in ⅡM serum[8.88(4.93, 13.64) was high ( Z=-3.01, P=0.003), which was positively correlated with the expression of IL-17 ( r=0.42, P=0.027). ③ The ex-pression of IL-17 in muscle tissue was higher in IIM associated with muscle weakness[1.91(1.56, 2.14) pg/ml vs 1.50(1.04, 2.00)pg/ml] ( Z=-1.38, P=0.020), dysphagia [2.06(1.99, 2.14)pg/ml vs 1.62(1.52, 2.04)pg/ml] ( Z=-2.74, P=0.010) and skin involvement[1.98(1.57, 2.14)pg/ml vs 1.04(0.86, 1.61)pg/ml] ( Z=-3.20, P<0.010), and the differences were statistically significant ( P<0.05). ④IL-17 was positively correlated with Myoact-total activity ( r=0.51, P=0.006), Myoact-muscle symptom ( r=0.45, P=0.016), erythrocyte sedimen tation ( r=0.48, P=0.020), and myoenzyme increase ( r=0.56, P=0.002). Conclusion:IL-17 and IL-6 are synergistically involved in the pathogenesis of IIM, suggesting that IL-17 is the therapeutic target of IIM.

Objective:To investigate the effect of pelvic motion in late pregnancy on the outcome of first trimester delivery.Methods:A total of 127 first-borns admitted to the midwifical clinic of Nanjing Maternal and Child Health Hospital from November 1, 2019 to March 10, 2020 were selected as the research objects, and they were divided into the walking group and the pelvic motion group according to the random number table method. In the end, 62 cases were included in the walking group and 65 cases in the pelvic motion group. The walking group did brisk walking in the third trimester. In the pelvic motion group, the motion in the third trimester consisted of the combined pelvic motion involving the two planes of the upright spine and the horizontal spine, and multiple peripelvic joints. The changes of fertility, birth canal and fetus before and after exercise were observed, and the outcomes of childbirth were compared between the two groups.Results:Indicators reflecting productivity: persistence time of "air bike" on the day before delivery was (27.12±7.73) seconds in the pelvic motion group and (20.56±6.60) seconds in the walking group, the difference was statistically significant ( t value was 5.12, P<0.01). The time of contractions after exercise before delivery was (269.38±123.70) seconds in the pelvic motion group and (591.29±201.82) seconds in the walking group, the difference was statistically significant ( t value was 10.89, P<0.01). The indicators reflecting the situation of the maternal birth canal were as follows: "sitting forward flexion level", pelvic motion group was (33.64±5.91) cm, walking group was (29.50±5.28) cm, the difference was statistically significant ( t value was 4.15, P<0.01). The cervical score during regular contractions was 8.01±1.69 in the pelvic motion group and 7.30±1.40 in the walking group, the difference was statistically significant( t value was 2.56, P<0.05). At the beginning of regular contractions, the proportion of fetal "occipital position" was 93.85% (61/65) in the pelvic motion group and 72.58%(45/62) in the walking group, the difference was statistically significant ( χ2 value was 10.41, P<0.01). The "no pain rate after exercise the day before delivery" was 72.31% (47/65) in the pelvic motion group and 29.03% (18/62) in the walking group, the difference was statistically significant ( χ2 value was 25.30, P<0.01). Time of the first labor was (395.84±165.24) min in the pelvic motion group and (574.35±152.23) min in the walking group, the difference was statistically significant ( t value was 6.32, P<0.01). The second stage of labor was (25.98±9.88) min in the pelvic motion group and (33.62±13.94) min in the walking group, the difference was statistically significant ( t value was 3.57, P<0.01). Conclusions:Pelvic motion in middle and late pregnancy can affect labor force, birth canal, fetus and other delivery factors, reduce movement pain and shorten the time of labor.

Objective:To design an electrically-heated dry diving suit with a portable power supply for divers to keep warm in a low temperature underwater environment.Methods:To synthesize the technological solutions of waterproofing, thermal insulation, and electrical heating, to design an electrically-heated dry diving suit with a waterproof layer, a heating and thermal insulation layer, and an underwater lithium battery pack.Results:The results of both unmanned and manned testing showed that the electrically-heated dry diving suit with water tight, thermal protection with CLO value of 3.155, and electrically heating could, ensure that divers maintain their core body temperature above 35.8℃ over 5 h in (10±2)℃ underwater environments.Conclusion:The electrically-heated dry diving suit can electrically generate heat and keep divers warm underwater, prevent hypothermia of divers and maintain their normal body temperature in a high pressure and cold environment, so as to improve their underwater operation capability.

Objective:To design an electrically-heated dry diving suit with a portable power supply for divers to keep warm in a low temperature underwater environment.Methods:To synthesize the technological solutions of waterproofing, thermal insulation, and electrical heating, to design an electrically-heated dry diving suit with a waterproof layer, a heating and thermal insulation layer, and an underwater lithium battery pack.Results:The results of both unmanned and manned testing showed that the electrically-heated dry diving suit with water tight, thermal protection with CLO value of 3.155, and electrically heating could, ensure that divers maintain their core body temperature above 35.8℃ over 5 h in (10±2)℃ underwater environments.Conclusion:The electrically-heated dry diving suit can electrically generate heat and keep divers warm underwater, prevent hypothermia of divers and maintain their normal body temperature in a high pressure and cold environment, so as to improve their underwater operation capability.

Objective To investigate the influence of gestational abnormal glucose metabolism on the birth outcome and long-term weight of neonates.Methods Thirty pregnant women with gestational diabetes mellitus (GDM) were enrolled in this study.30 pregnant women with gestational impaired glucose tolerance (GIGT) were selected,and 30 normal pregnant women(NGT) were selected as control group.The weight,length and weight index (PI) of the three groups were collected.The incidence rates of adverse outcomes were collected in the three groups.The long-term weight of the newborns was investigated.According to whether breastfeeding,they were divided into breastfeeding group and non-breastfeeding group.The body mass index (BMI) was compared between 42 days,3 months,6 months and 12 months,respectively.Results There were statistically significant differences in body weight and PI of neonates except length between the control group and the GDM group (t =1.60,P =0.06;t =5.09,P =0.00;t =6.94,P =0.00).There were statistically significant differences in body weight and PI of neonates except length between the control group and the GIGT group(t =1.57,P =0.06;t =4.21,P =0.01;t =5.88,P =0.00).There were no statistically significant differences in the above indices between the GDM group and the GIGT group(all P ＞ 0.05).The incidence rate of macrosomia in the GDM group and the GIGT group was significantly higher than that of the control group (x2 =10.59,P =0.00).The incidence rates of respiratory failure syndrome,cardiovascular disease,hyperbilirubinemia and birth injury among the three groups had no statistically significant differences(x2 =1.23,P =0.54;x2 =2.09,P=0.35;x2 =2.02,P=0.36;x2 =2.09,P=0.35;x2 =4.03,P=0.13).At the birth of 42 days,3 months,6 months,12 months,the BMI of neonates in the GDM group and the GIGT group were slightly higher than those in the control group,but there were no statistically significant differences in BMI index among the three groups of breasffed newborns (F =0.71,P =0.28;F =0.97,P =0.12;F =0.98,P =0.12;F =0.77,P =0.22).At the birth of 42 days,3 months,6 months,12 months,the BMI of neonates in the GDM group and the GIGT group were slightly higher than those in the control group,but there were no statistically significant differences in BMI index among the three groups of breasffed newborns (F =0.77,P =0.34;F =0.89,P =0.10;F =1.12,P =0.09;F =0.55,P =0.67).Conclusion Abnormal glucose metabolism in pregnant women can lead to a significant increase in the incidence of neonatal macrosomia.The body weight and PI of neonates are higher than those without abnormal glucose metabolism in pregnant women,but the abnormal maternal glucose metabolism in pregnant women has no significant influence on the long-term body weight of neonates,and there is no significant difference between NGT and neonates.