Dimethyl fumarate inhibits NLRP3/AIM2 inflammasomes to prevent spleen radiation injury ZHANG / 中国药理学通报

Aim To investigate the protective effect of dimethyl fumarate on spleen injury induced by gamma radiation in mice and the related mechanism. Methods C57BL/6 mice were randomly divided into the blank control group, radiation model group and DMF administration group, which were administered once at 12 h before irradiation and once at 0. 5 h, 12 h, 24 h and 48 h after irradiation. The 30-day survival rate, body weight and pathological injury of spleen were measured after a one-time total body irradiation of Co 7 rays (8 Gy). TUNEL staining was used to detect apoptosis of spleen cells. Enzyme-linked immunoassay ( ELISA) was applied to detect the contents of TNF-a, IL-1 p, IL-6, IL-18, NLRP3 and AIM2 in spleen. Western blot test and immunofluorescence staining test was employed to verify the changes of NLRP3 and AIM2 contents in spleen tissue after irradiation. Results DMF could obviously improve the survival rate of irradiated mice, improve the weight loss of irradiated mice, re-duce the pathological injury of spleen, and inhibit the apoptosis of spleen cells after irradiation. ELISA results showed that DMF could significantly inhibit the increase of spleen inflammatory cytokines TNF-a, IL-lp, IL-6, IL-18 and inflammasome components NL-RP3 and AIM2 induced by irradiation. Western blot and tissue immunofluorescence staining also confirmed that DMF could inhibit the increase of NLRP3 and AIM2 inflammasome protein levels caused by irradiation. Meanwhile, NLRP3 agonist and AIM2 agonist could antagonize the radiation protection effect of DMF on spleen cells. Conclusion DMF can ameliorate spleen injury of Co 7-ray injured mice, and its mechanism is closely related to NLRP3/AIM2 inflamma-somes, which can be used as a potential protective drug for radiation injury.

Research progress on anti-inflammatory effects of plant-derived cannabinoid type 2 receptor modulators / 中国中药杂志

Excessive and persistent inflammatory responses are a potential pathological condition that can lead to diseases of various systems, including nervous, respiratory, digestive, circulatory, and endocrine systems. Cannabinoid type 2 receptor(CB2R) belongs to the G protein-coupled receptor family and is widely distributed in immune cells, peripheral tissues, and the central nervous system. It plays a role in inflammatory responses under various pathological conditions. The down-regulation of CB2R activity is an important marker of inflammation and and CB2R modulators have been shown to have anti-inflammatory effects. This study explored the relationship between CB2R and inflammatory responses, delved into its regulatory mechanisms in inflammatory diseases, and summarized the research progress on CB2R modulators from plants other than cannabis, including plant extracts and monomeric compounds, in exerting anti-inflammatory effects. The aim is to provide new insights into the prevention and treatment of inflammatory diseases.

High-frequency ultrasonography-assisted evaluation of treatment outcomes of erysipelas: a prospective controlled study / 中华皮肤科杂志

Objective:To measure the skin thickness in patients with erysipelas by high-frequency ultrasonography (HF-USG), and to compare the clinical efficacy of systemic antibiotics alone versus their combination with glucocorticoids in the treatment of erysipelas.Methods:Hospitalized patients with erysipelas were enrolled from Zhongda Hospital, Southeast University from January to December in 2021, and randomly divided into the study group and control group according to the order of visits. The study group was treated with systemic cefathiamidine for 7 days followed by oral methylprednisolone at a dose of 0.4 mg·kg -1·d -1, while the control group was treated with cefathiamidine alone. Before and after the treatment for 10 days, the thicknesses of the epidermis-dermis layers and subcutaneous tissues were measured by HF-USG at the sites of the most severe skin lesions on the affected limbs and at the corresponding sites on the healthy limbs, and white blood cell (WBC) counts, neutrophil (NEU) counts, as well as C-reaction protein (CRP) levels were determined. The t test and non-parametric test were used to compare the efficacy between two groups. Results:A total of 23 patients with erysipelas were enrolled. Among the 12 patients in the study group, 8 were males and 4 were females, and their age was 71.4 ± 11.4 years. Among the 11 patients in the control group, 7 were males and 4 were females, and their age was 67.4 ± 11.1 years. Before treatment, the thicknesses of the epidermis-dermis layers (0.33 ± 0.12 cm) and subcutaneous tissues (1.08 ± 0.49 cm) in the study group were not significantly different from those in the control group (0.25 ± 0.09 cm, 0.98 ± 0.46 cm; t = -1.83, -0.49, P = 0.081, 0.626, respectively). After the 10-day treatment, the thicknesses of the epidermis-dermis layers and subcutaneous tissues of the skin lesions on the affected limbs significantly decreased in both groups compared with those before treatment (both P < 0.05), and the decrease in the thicknesses of subcutaneous tissues was significantly stronger in the study group (0.32 ± 0.33 cm) than in the control group (0.10 ± 0.07 cm; t = 2.20, P = 0.039). Before treatment, the WBC counts ([11.16 ± 4.42] × 10 9/L), NEU counts ([8.26 ± 4.16] × 10 9/L) and CRP levels (median [ Q1, Q3]: 72.20 [19.28, 140.50] mg/L) in the study group were not significantly different from those in the control group ([10.10 ± 4.53] × 10 9/L, [7.21 ± 3.00] × 10 9/L, 34.40 [8.00, 74.20] mg/L, respectively; t or Z = 0.60, 0.71, -0.85, P = 0.578, 0.496, 0.196, respectively). After the 10-day treatment, the WBC counts, NEU counts, and CRP levels significantly decreased in both groups compared with those before treatment (all P < 0.05) . Conclusion:The combined treatment with systemic antibiotics and glucocorticoids could effectively alleviate skin inflammation, and more rapidly reduce the thicknesses of inflamed subcutaneous tissues in patients with erysipelas compared with systemic antibiotics alone.

The protective effect of orcinol glucoside on dexamethasone induced osteoblast cell damage through inhibition of glucocorticoid receptor nucleus translocation / 中国药理学通报

Aim To investigate the protective effect of orcinol glucoside on dexamethasone(DEX)-induced osteoblast injury and its mechanism. Methods Primary osteoblasts were extracted from calvaria of neonatal mice and cultured in medium with DEX(1 μmol•L

Molecular mechanism of ginsenoside Rg_1 against radiation enteritis: based on network pharmacology and in vitro experiment / 中国中药杂志

Via network pharmacology, molecular docking, and cellular experiment, this study explored and validated the potential molecular mechanism of ginsenoside Rg_1(Rg_1) against radiation enteritis. Targets of Rg_1 and radiation enteritis were retrieved from BATMAN-TCM, SwissTargetPrediction, and GeneCards. Cytoscape 3.7.2 and STRING were employed for the construction of protein-protein interaction(PPI) network for the common targets, and screening of core targets. DAVID was used for Gene Ontology(GO) term and Kyoto Encyclopedia of Genes and Genomes(KEGG) pathway enrichment to predict the possible mechanism, followed by molecular docking of Rg_1 with core targets and cellular experiment. For the cellular experiment, ~(60)Co-γ irradiation was performed for mo-deling of IEC-6 cells, which were then treated with Rg_1, protein kinase B(AKT) inhibitor LY294002, and other drugs to verify the effect and mechanism of Rg_1. The results showed that 29 potential targets of Rg_1, 4 941 disease targets, and 25 common targets were screened out. According to the PPI network, the core targets were AKT1, vascular endothelial growth factor A(VEGFA), heat shock protein 90 alpha family class A member 1(HSP90AA1), Bcl-2-like protein 1(BCL2L1), estrogen receptor 1(ESR1), etc. The common targets were mainly involved in the GO terms such as positive regulation of RNA polymerase Ⅱ promoter transcription, signal transduction, positive regulation of cell proliferation, and other biological processes. The top 10 KEGG pathways included phosphoinositide 3-kinase(PI3K)/AKT pathway, RAS pathway, mitogen-activated protein kinase(MAPK) pathway, Ras-proximate-1(RAP1) pathway, and calcium pathway, etc. Molecular docking showed that Rg_1 had high binding affinity to AKT1, VEGFA, HSP90AA1, and other core targets. Cellular experiment indicated that Rg_1 can effectively improve cell viability and survival, decrease apoptosis after irradiation, promote the expression of AKT1 and B-cell lymphoma-extra large(BCL-XL), and inhibit the expression of the pro-apoptotic protein Bcl-2-associated X protein(BAX). In conclusion, through network pharmacology, molecular docking, and cellular experiment, this study verified the ability of Rg_1 to reduce radiation enteritis injury. The mechanism was that it regulated PI3K/AKT pathway, thereby suppressing apoptosis.

Separation, characterization and anti-psoriasis effect of self-assembled nanoparticles from Shaoyao Gancao Decoction / 中国中药杂志

This study aims to separate and characterize self-assembled nanoparticles(SAN) from Shaoyao Gancao Decoction(SGD) and determine the content of active compounds. Further, we aimed to observe the therapeutic effect of SGD-SAN on imiquimod-induced psoriasis in mice. The separation of SGD was performed by dialysis, and the separation process was optimized by single factor experiment. The SGD-SAN isolated under the optimal process was characterized, and the content of gallic acid, albiflorin, paeoniflorin, liquiritin, isoliquiritin apioside, isoliquiritin, and glycyrrhizic acid in each part of SGD was determined by HPLC. In the animal experiment, mice were assigned into a normal group, a model group, a methotrexate group(0.001 g·kg~(-1)), and SGD, SGD sediment, SGD dialysate, and SGD-SAN groups of different doses(1, 2, and 4 g·kg~(-1)) respectively. The psoriasis grade of mice was evaluated based on the pathological changes of skin lesions, the content of inflammatory cytokines, organ index and other indicators. The results showed that SAN obtained by centrifugation at 13 000 r·min~(-1) for 30 min was stable after dialysis for 4 times, which were uniform spherical nanoparticles with the particle size of(164.43±1.34) nm, the polydispersity index of(0.28±0.05), and the Zeta potential of(-12.35±0.80) mV. The active compound content accounted for more than 70% of SGD. Compared with the model group, SAN and SGD decreased the skin lesion score, spleen index, and inflammatory cytokine levels(P<0.05 or P<0.01) and alleviated the skin thickening and infiltration of inflammatory cells. However, the sediment group and the dialysate group had no obvious effect. SGD showed a good therapeutic effect on imiquimod-induced psoriasis in mice, and SAN demonstrated the effect equivalent to SGD in a dose-dependent manner. Therefore, we conclude that the SAN formed during decocting is the main active form of SGD, which can lower the levels of inflammatory cytokines, promote the normal differentiation of keratinocytes, and reduce the infiltration of inflammatory cells in the treatment of psoriasis lesions in mice.

Clinical and pathological analysis of 8 cases of mucoepidermoid carcinoma / 中华皮肤科杂志

Objective:To investigate clinical and histopathological features and differential diagnostic considerations of mucoepidermoid carcinoma (MEC) .Methods:A retrospective study was carried out on clinical manifestations, histopathological and immunohistochemical features, treatment and prognosis of 8 patients with MEC, who were collected from Department of Pathology, Hospital of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical College during 2018 - 2021.Results:Among the 8 patients, 5 were males and 3 were females, and their age at onset ranged from 19 to 67 years. Skin lesions were located on the lip mucosa in 5 cases, on the cheek in 2 cases, and on the nose in 1 case. Tumors were all located in the dermis and subcutaneous tissue, parts of which were connected to the epidermis; different proportions of mucous cells, epidermoid cells and intermediate cells were arranged in nests or clumps, and formed solid or cystic structures accompanied by varying degrees of formation of ducts and mucus lakes; all epidermoid cells and intermediate cells expressed cytokeratins AE1/AE3, CK5/6, P63, carcinoembryonic antigen and epithelial membrane antigen. According to the current Chinese grading system, 1 of the 8 patients was diagnosed with intermediate-grade MEC, and others were diagnosed with low-grade MEC. No abnormalities were found by systemic examination. All patients received surgical resections. After the follow-up of 12 - 36 months, no recurrence or distant metastasis was observed.Conclusion:MEC presents no characteristic clinical manifestations, its diagnosis mainly depends on histopathological features, and mucus in the cytoplasm of mucous cells as shown by alcian blue staining is specific for MEC.

Research progress on protective effect of traditional Chinese medicine and natural medicine on methotrexate-induced liver toxicity / 中国中药杂志

Methotrexate(MTX) is a commonly used antimetabolite, which can be used in the treatment of a variety of diseases. However, hepatotoxicity in the use of MTX severely limits its clinical use. Therefore, how to prevent and treat hepatotoxicity of MTX has become an urgent clinical problem. This paper summarizes and analyzes relevant literatures on the prevention and treatment of hepa-totoxicity caused by MTX with traditional Chinese medicines and natural medicines in recent years. MTX-induced hepatotoxicity mechanisms include folate pathway, oxidative stress damage and adenosine pathway, of which oxidative stress theory is the main research direction. A total of 14 kinds of traditional Chinese medicine and natural medicine extracts including white peony root, and 21 kinds of natural monomer compounds, including berberine, play an anti-MTX-induced hepatotoxic effect by resisting oxidative stress, inhibiting inflammation and regulating signal pathways. According to current studies on the prevention and treatment of hepatotoxicity induced by MTX with traditional Chinese medicines and natural medicines, there are insufficiencies, such as partial and superficial mechanism studies, inadequate combination of experimental research and clinical practice, non-standard experimental design and lack of application of advanced technologies and methods. This paper systematically reviewed the effects and mechanisms of traditional Chinese medicines and natural medicines against hepatotoxicity induced by MTX and defined current studies and deficiencies, in the expectation of proposing new study strategies and directions and providing scientific basis for rational clinical use of MTX and development of new drugs against MTX hepatotoxicity.

Genetic diversity and genetic structures of original plants of Viticis Fructus:an SSR markers-based analysis / 中国中药杂志

The present study aimed to provide the protection strategies for wild germplasm resources of original plants of Viticis Fructus and a theoretical basis for the sustainable use of Viticis Fructus. The genetic diversity and genetic structures of the 232 indivi-duals in 19 populations of Vitex rotundifolia and V. trifolia were analyzed by eight SSR markers with tools such as Popgene32, GenAlex 6.502, and STRUCTURE. Bottleneck effect was detected for the population with more than 10 individuals. The results indicated that 42 and 26 alleles were detected from the populations of V. rotundifolia and V. trifolia, respectively, with average expected heterozygo-sities of 0.448 6 and 0.583 9, which are indicative of low genetic diversity. AMOVA revealed the obvious genetic variation of V. rotundifolia and V. trifolia within population(84.43%, P<0.01; 60.37%, P<0.01). Furthermore, in eight SSR loci, six from V. rotundifolia populations and two from V. trifolia populations failed to meet Hardy-Weinberg equilibrium expectations(P<0.05), which confirmed that the populations experienced bottleneck effect. As assessed by Mantel test, geographical distance posed slight impacts on the genetic variation between the populations of V. rotundifolia and V. trifolia. Principal component analysis(PCA) and STRUCTURE analysis demonstrated evident introgression of genes among various populations. The original plants of Viticis Fructus were confirmed low in genetic diversity and genetic differentiation level. Therefore, the protection of wild resources of original plants of Viticis Fructus should be strengthened to ensure its sustainable use.

Research progress on natural cannabinoid receptor type 2( CB2R)regulators and their effects on bone metabolism / 中国中药杂志

Cannabinoid receptor type 2( CB2 R),a member of the G protein-coupled receptor( GPCR) superfamily,has a variety of biological activities,such as regulating pain response,resisting inflammation and fibrosis,and mediating bone metabolism. Some CB2 R regulators exhibit a good regulatory effect on bone metabolism. Cannabinoids in Cannabis sativa can cause psychoactive effects despite various pharmacological actions they exerted by targeting CB2 R. Therefore,it is of great significance to discover CB2 R regulators in non-Cannabis plants for finding new lead compounds without psychoactive effects and elucidating the action mechanism of plant drugs. The present study clarifies the discovery,structure,and physiological functions of CB2 R,especially its regulatory effects on bone metabolism,summarized CB2 R regulators extracted from non-Cannabis plants,and systematically analyzes the regulatory effects of CB2 R regulators on bone metabolism in animals,osteoblasts,and osteoclasts,to provide a scientific basis for the discovery of new CB2 R regulators and the development of anti-osteoporotic drugs.

Effect of Danggui Shaoyaosan on Diminished Ovarian Reserve in Model Rats： An Exploration Based on TGF-β1/ Smads Signaling Pathway / 中国实验方剂学杂志

Objective:To observe the improving effect of Danggui Shaoyaosan on diminished ovarian reserve （DOR） in rats triggered by Tripterygia wilfordii polyglycoside tablet combined with stress， and to explore the role of transforming growth factor-<italic>β</italic>₁（TGF-<italic>β</italic>₁）/Smads signaling pathway in such improvement. Method:Forty-eight female SD rats with normal sexual cycle were selected and randomly divided into a normal group （<italic>n</italic>=8） and a modeling group （<italic>n</italic>=40）， and the ones in the modeling group were given Tripterygium wilfordii polyglycoside tablets （50 mg·kg^-1） combined with random stress for 15 d. After successful modeling， the rats were randomized into the model group， low-， medium-， and high-dose （3.96， 7.92， 15.84 g·kg^-1） Danggui Shaoyaosan groups， and estradiol valerate group （0.09 mg·kg^-1）， with eight in each group. Under the premise of stress exposure， they were separately gavaged with the normal saline， low-， medium- and high-dose Danggui Shaoyaosan， and estradiol valerate for 15 successive days. The estrous cycle of rats in each group was observed daily. After intervention， the rats were sacrificed and the ovarian visceral index was calculated. The pathological changes in ovarian tissues were observed by hematoxylin eosin （HE） staining. The protein expression levels of TGF-<italic>β</italic>₁ and TGF-<italic>β</italic>₁receptor （TGF-<italic>β</italic>₁R） in the ovarian tissues of rats were measured by immunohistochemistry （IHC）， and the mRNA expression levels of Smad2， Smad3， and Smad7 in the ovarian tissues by real-time polymerase chain reaction （Real-time PCR）. Result:Compared with the normal group， the model group exhibited disordered estrus cycle （<italic>P</italic><0.05）， reduced visceral index （<italic>P</italic><0.01）， and down-regulated TGF-<italic>β</italic>₁ and TGF-<italic>β</italic>₁R protein and Smad2 and Smad3 mRNA expression in the ovarian tissues （<italic>P</italic><0.01）， and up-regulated Smad7 mRNA expression （<italic>P</italic><0.01）. Compared with the model group， Danggui Shaoyaosan at the low， medium， and high doses and estradiol valerate improved the estrus cycle of rats to varying degrees （<italic>P</italic><0.05） and increased the visceral index， with better effects observed in the medium-group and high-dose Danggui Shaoyaosan groups （<italic>P</italic><0.05，<italic>P</italic><0.01）. Besides， the protein expression levels of TGF-<italic>β</italic>₁ and TGF-<italic>β</italic>₁R and the mRNA expression levels of Smad2 and Smad3 in the ovarian tissues were elevated to varying degrees （<italic>P</italic><0.01）， and the Smad7 mRNA expression declined （<italic>P</italic><0.01）. The improvements in TGF-<italic>β</italic>₁ and TGF-<italic>β</italic>₁R protein expression of the medium-dose Danggui Shaoyaosan group and estradiol valerate group were more obvious. Conclusion:Danggui Shaoyaosan significantly improves ovarian reserve in DOR rats， which is closely related to the regulation of TGF-<italic>β</italic>₁/Smads signaling pathway.

Humulus lupulus L. Extract Prevents Ovariectomy-Induced Osteoporosis in Mice and Regulates Activities of Osteoblasts and Osteoclasts / 中国结合医学杂志

OBJECTIVE@#To systematically evaluate the protective effects of Humulus lupulus L. extract (HLE) on osteoporosis mice.@*METHODS@#In vivo experiment, a total of 35 12-week-old female ICR mice were equally divided into 5 groups: the sham control group (sham); the ovariectomy with vehicle group (OVX); the OVX with estradiol valerate [EV, 0.2 mg/(kg•d)] the OVX with low- or high-dose HLE groups [HLE, 1 g/(kg•d) and 3 g/(kg•d)], 7 in each group. Treatment began 1 week after the ovariectomized surgery and lasted for 12 weeks. Bone mass and trabecular bone mircoarchitecture were evaluated by micro computed tomography, and bone turnover markers in serum were evaluated using enzyme-linked immunosorbent assay (ELISA) kits. In vitro experiment, osteoblasts and osteoclasts were treated with HLE at doses of 0, 4, 20 and 100 µg/mL. Biomarkers for bone formation in osteoblasts and bone resorption in osteoclasts were analyzed.@*RESULTS@#Compared with the OVX group, HLE exerted bone protective effects by the increase of estradiol (P<0.05), the improvement of cancellous bone structure, bone mineral density (P<0.01) and the reduction of serum alkaline phosphatase (ALP), tartrate resistant acid phosphatase (TRAP), bone gla-protein, c-terminal telopeptides of type I collagen (CTX-I) and deoxypyridinoline levels (P<0.01 for all). In vitro experiment, compared with the control group, HLE at 20 µg/mL promoted the cell proliferation (P<0.01), and increased the expression of bone morphogenetic protein-2 and osteopontin levels in osteoblasts (both P<0.05). HLE at 100 µg/mL increased the osteoblastic ALP activities, and HLE at all dose enhanced the extracellular matrix mineralization (both P<0.01). Furthermore, compared with the control group, HLE at 20 µg/mL and 100 µg/mL inhibited osteoclastic TRAP activity (P<0.01), and reduced the expression of matrix metalloproteinase-9 and cathepsin K (both P<0.05).@*CONCLUSION@#HLE may protect against bone loss, and have potentials in the treatment of osteoporosis.

Skin adverse reactions to afatinib and their correlation with anti-lung cancer efficacy / 中华皮肤科杂志

Objective:To investigate the type and severity of skin adverse reactions induced by afatinib in the treatment of lung cancer, and to analyze their correlation with anti-lung cancer efficacy.Methods:A case-case-control study was conducted on lung cancer patients treated with afatinib in ZhongDa Hospital, Southeast University from December 2016 to January 2018. The type and severity of skin adverse reactions were evaluated in 76 patients with lung cancer based on the National Cancer Institute-Common Terminology Criteria for Adverse Events (NCI-CTCAE) Version 4.0, and these patients were divided into 3 groups according to the severity of skin lesions, including grade-0, -1, and -2/3 groups. The patients underwent chest computed tomography (CT) examination every 3 months, and the tumor response to afatinib was evaluated according to the Response Evaluation Criteria in Solid Tumors (RECIST) . Anti-lung cancer efficacy of afatinib was compared among the patients with different grades of skin lesions by using the Kruskal-wallis H rank sum test. Results:After treatment with afatinib, 44 of the 76 patients with lung cancer achieved stable condition or partial remission, and 32 experienced disease progression. Skin adverse reactions occurred in 69 patients, and manifested as acneiform lesions in 42 (55.3%) patients, paronychia in 35 (46.1%) , mucosal erosions in 30 (39%) , hair changes in 8 (10.5%) , and hand-foot syndrome in 6 (7.9%) . Improvement was achieved in 3, 7 and 34 cases in the grade-0, -1, and -2/3 groups ( n = 7, 19 and 50 respectively) , respectively. There was a significant difference in the response rate among the 3 groups ( χ2 = 6.117, P = 0.047) , and the response rate was significantly higher in the grade-1 and -2/3 groups than in the grade-0 group (both P < 0.001) , and higher in the grade-2/3 group than in the grade-1 group ( P < 0.001) . Conclusion:The treatment of lung cancer with afatinib can cause various types of skin lesions, such as acneiform lesions, paronychia, mucosal erosions, hair changes and hand-foot syndrome, and the higher the severity of the skin lesions, the more marked the anti-lung cancer efficacy of afatinib.

Rubus chingii Hu: an overview of botany, traditional uses, phytochemistry, and pharmacology / 中国天然药物

Rubus chingii Hu, a member of the rosaceae family, is extensively distributed in China and Japan. Its unripe fruits (Fupenzi in Chinese) have a long history of use as an herbal tonic in traditional Chinese medicine for treating various diseases commonly associated with kidney deficiency, and they are still in use today. Phytochemical investigations on the fruits and leaves of R. chingii indicate the presence of terpenoids, flavonoids, steroids, alkaloids, phenylpropanoids, phenolics, and organic acids. Extracts or active substances from this plant are reported to have various pharmacological properties, including antioxidant, anti-inflammatory, antitumor, antifungal, antithrombotic, antiosteoporotic, hypoglycemic, and central nervous system-regulating effects. This review provides up-to-date information on the botanical characterizations, traditional usages, chemical constituents, pharmacological activities, toxicity, and quality control of R. chingii. Possible directions for future research are also briefly proposed. This review aims to supply fundamental data for the further study of R. chingii and contribute to the development of its clinical use.

Effect of Gymnastics Exercise on Sensory Integration Disorder in Children Aged Three to Six Years / 中国康复理论与实践

Objective:To explore the effect of gymnastic exercise on sensory integration disorder (SID) in children aged three to six years. Methods:From March to June 2018, 27 children aged three to six years with SID were recruited from Chengdu U-Beller International Children Education Center (Pidu Campus), and were randomly divided into control group (n = 13) and experimental group (n = 14). The experimental group accepted gymnastic exercise, 60 minutes a time, three times a week, for 16 weeks. The control group received no intervention. They were assessed with Assessment Scale for Children Sensory Integration Development, for vestibular dysfunction, tactile defense and proprioception dysfunction. Results:After intervention, the SID improvement was better in the experimental group than in the control group (χ2 > 6.639, P < 0.05), several children with mild disorder returned to normal level, and several with severe disorder returned to mild level. There was no difference in the scores of vestibular dysfunction, tactile defense and proprioception dysfunction before and after intervention in the control group (P > 0.05), and the scores significantly improved in the experimental group (|t| > 7.015, P < 0.01), and was higher in the experimental group than in the control group after intervention (t > 2.193, P < 0.01). Conclusion:Gymnastic exercise can improve vestibular dysfunction, tactile defense and proprioception dysfunction for children with SID aged three to six years.

Surveillance of cockroach population and evaluation of control effects in households from 2017 to 2019 in Jiading District of Shanghai / 上海预防医学

Objective To learn the population and infestation rates of cockroaches from 2017 to 2019 in Jiading District of Shanghai, to evaluate the effect of cockroach termination in household, and to provide information for cockroach control. Methods Cockroaches were controlled by dinotefuran baits and clean-up in households.Sticky trap and visual method were employed for density monitoring in farmers markets, supermarkets, hotels, restaurants, hospitals, and residential areas.Visual method was used in households before and after using the insecticide. Results Sticky trap result showed the room infestation rate was 3.24%, mean adhesion rate was 3.29%, the density was 0.06 per board, and the density peak appeared in May.Rate of invasion and density decreased year by year.Blattella germanica was the dominant species, counting for 71.88%.The density, and rate of infestation, as determined by sticky trap method, were the highest in the farmers markets, followed by hospitals and residential areas.Determined by visual method, room infestation rate was 1.16%, and the infestation rate was 4.44%.The peak appeared in January.Infestation rate of the farmers markets was the highest, followed by hospitals and residential areas.By visual method, the room infestation rate was 59.01%, and 48.45% for nymphs.The room infestation and ootheca rates were 54.04% and 17.39%.The rate decreased more than 80% in 30 days after use of the insecticide. Conclusion Infestation rate of cockroach remains at low level in Jiading District.The effect of bait combined with environmental cleaning is remarkable.Future work should strengthen monitoring and control in farmers markets, hospitals and residential areas.

Unbiased transcriptomic analyses reveal distinct effects of immune deficiency in CNS function with and without injury

The mammalian central nervous system (CNS) is considered an immune privileged system as it is separated from the periphery by the blood brain barrier (BBB). Yet, immune functions have been postulated to heavily influence the functional state of the CNS, especially after injury or during neurodegeneration. There is controversy regarding whether adaptive immune responses are beneficial or detrimental to CNS injury repair. In this study, we utilized immunocompromised SCID mice and subjected them to spinal cord injury (SCI). We analyzed motor function, electrophysiology, histochemistry, and performed unbiased RNA-sequencing. SCID mice displayed improved CNS functional recovery compared to WT mice after SCI. Weighted gene-coexpression network analysis (WGCNA) of spinal cord transcriptomes revealed that SCID mice had reduced expression of immune function-related genes and heightened expression of neural transmission-related genes after SCI, which was confirmed by immunohistochemical analysis and was consistent with better functional recovery. Transcriptomic analyses also indicated heightened expression of neurotransmission-related genes before injury in SCID mice, suggesting that a steady state of immune-deficiency potentially led to CNS hyper-connectivity. Consequently, SCID mice without injury demonstrated worse performance in Morris water maze test. Taken together, not only reduced inflammation after injury but also dampened steady-state immune function without injury heightened the neurotransmission program, resulting in better or worse behavioral outcomes respectively. This study revealed the intricate relationship between immune and nervous systems, raising the possibility for therapeutic manipulation of neural function via immune modulation.

Physical Activities and Its Influential Factors for Children with Intellectual Disabilities / 中国康复理论与实践

Objective To analyze the current status of physical activities for children with intellectual disabilities based on ICF, to discuss the effects of physical activities on the health, and the approaches and its precautions.Methods The theory and method of ICF had been adopted. Literature review and theoretical research methods were implemented.Results In the way of participating physical activity, children with intellectual disabilities would improve not only their physical fitness, but also their mood and quality of life, and reduce their health risks.Conclusion Children with intellectual disabilities faced barriers in physical activities. It recommended to develop policies and provide support and guidance services to promote their participation of physical activities. It is necessary to develop policies to encourage children with intellectual disabilities to participate in community-based physical activities and provide adaptive facility and equipment, guidance and supportive services.

Metabonomics study of interaction mechanism between Dendrobium officinale and Colletotrichum gloeosporioides based on GC-MS / 中草药

Objective To investigate the metabolites related to the course of anthracnosis of Dendrobium officinale and its possible mechanism based on the technique of metabonomics, so as to provide theoretical support for the creation or breeding of disease resistant varieties of D. officinale. Methods The normal and infected by Colletotrichum gloeosporioides leaves of D. officinale were collected respectively, and to find out the differential metabolites through the sample pretreatment, GC-MS analysis, and bioinformatics analysis. Then the differential metabolites and analysis of metabolic pathways involved in the course of disease were carried on the preliminary discussion. Results The multidimensional statistical models of each analysis group were successfully established. The dispersion points of VIP > 1.0 were selected as the potential differential materials, combined with P < 0.05 in the analysis of single dimensional Statistics (test) as the standard to verify. A total of 84 differential metabolites screened from 305 identified metabolites were considered to be pathogenesis related metabolites. A total of 34 differential metabolites were found out to be involved in the metabolic pathways through the pathway enrichment analysis, and the obtained ZC-GB metabolic pathways were of significance. Conclusion Based on GC-MS technology, the metabolomics analysis of D. officinale samples (normal/infected) was carried out and the metabolites related to the course of anthracnosis of D. officinale were found out. It could lay the foundation for studying the disease of D. officinale and cultivating resistant varieties on molecular level.

Effects of icariin on bone metabolism in iron overload mice / 药学学报

This study was designed to investigate the effects of icariin on bone metabolism in osteoprotic mice induced by iron overload, the model of iron overload mice was established by intraperitoneal injection of iron dextran (100 mg·kg-1). Sixty 2-month-old C57/BL6 male mice were randomly divided into six groups, including normal control group, model group, N-acetyl-L-cysteine (NAC)-treated group, icariin (50, 100 and 200 mg·kg-1)-treated group. Except for the mice in control group, the mice were intraperitoneal injected weekly with iron dextran (100 mg·kg-1) to establish the model of iron overload mice. The NAC and icariin were suspended in 0.5% CMC-Na solution, and administered orally for six times one week according to body weight. The mice in normal group and model group were given the same volume of 0.5% CMC-Na solution. Three months later, the organs, serum and femurs of mice were collected. Serum biochemical parameters were detected with an ELISA kit, the distal femur bone density and trabecular bone microstructure were analyzed by Micro-CT, and the mechanical properties of femur were measured by universal mechanical analyzer. Compared with the normal control group, iron overload decreased the bone mineral density and deteriorated the micro-architecture structure and bone mechanical properties in femur of mice, increased the level of iron, phosphorus and activity of tartrate resistant acid phosphatase-5b (TRACP-5b), reduced the level of osteocalcin (OCN) in serum, decreased the activity of superoxide dismutase (SOD) of liver tissues, increased the content of malondialdehyde (MDA) of liver tissues. Icariin increased bone mineral density, improved the micro-architecture and mechanical properties of bone tissue, reduced the levels of iron and phosphorus, decreased the activity of TRACP-5b and enhanced the levels of OCN in serum, and also decreased the activity of MDA in liver tissue of iron overload mice. These results suggest that icariin is able to reduce bone loss and improve bone microstructure and mechanical properties in iron overload mice through regulation of bone metabolism via anti-oxidation.