ACT001 exerts anti-inflammatory and antioxidative activity to alleviate sepsis-induced acute lung injury through STAT1/CIITA/MHC- II pathway / 中国药理学通报

Aim This study aimed to assess the therapeutic potential of ACT001, a micheliolide derivative, in the treatment of acute lung injury ( ALI) induced by sepsis and investigate its pharmacological mechanisms. Methods At the animal level, an ALI model was established in mice through intraperitoneal injection of li-popolysaccharide (LPS). Subsequently, ACT001 was administered to the ALI-afflicted mice. The therapeutic effects of ACT001 were assessed by evaluating factors such as individual survival rate, lung inflammation, and pulmonary edema. At the cellular level, RAW264. 7 cells were stimulated with LPS to explore the pharmacological mechanism of ACT001. The study examined inflammatory response and oxidative stress levels, and proteomics analysis was conducted to investigate the underlying molecular mechanisms. Results At the animal level, ACT001 can improve the survival of mice with ALI, reduce lung inflammation, and reduce the levels of inflammatory cytokines in serum. At the cellular level, ACT001 promotes the polarization of RAW264. 7 cells toward an anti-inflammatory pheno-type by inhibiting MHC-II related pathways, inhibiting the production of NO and related inflammatory cytokines while increasing SOD content and scavenging ROS. Conclusions ACT001 exhibited the potential to alleviate ALI via its anti-inflammatory and antioxidative activity, mainly by inhibiting the STAT1/ CIITA/ MHC-II pathway. ACT001 holds promise as a novel therapeutic candidate for the treatment of ALI induced by sepsis.

Evidence-based standardized nutrition protocol can shorten the time to full enteral feeding in very preterm/very low birth weight infants / 中国当代儿科杂志

OBJECTIVES@#To investigate whether evidence-based standardized nutrition protocol can facilitate the establishment of full enteral nutrition and its effect on short-term clinical outcomes in very preterm/very low birth weight infants.@*METHODS@#A retrospective analysis was performed on the medical data of 312 preterm infants with a gestational age of ≤32 weeks or a birth weight of <1 500 g. The standardized nutrition protocol for preterm infants was implemented in May 2020; 160 infants who were treated from May 1, 2019 to April 30, 2020 were enrolled as the control group, and 152 infants who were treated from June 1, 2020 to May 31, 2021 were enrolled as the test group. The two groups were compared in terms of the time to full enteral feeding, the time to the start of enteral feeding, duration of parenteral nutrition, the time to recovery to birth weight, the duration of central venous catheterization, and the incidence rates of common complications in preterm infants.@*RESULTS@#Compared with the control group, the test group had significantly shorter time to full enteral feeding, time to the start of enteral feeding, duration of parenteral nutrition, and duration of central venous catheterization and a significantly lower incidence rate of catheter-related bloodstream infection (P<0.05). There were no significant differences between the two groups in the mortality rate and the incidence rate of common complications in preterm infants including grade II-III necrotizing enterocolitis (P>0.05).@*CONCLUSIONS@#Implementation of the standardized nutrition protocol can facilitate the establishment of full enteral feeding, shorten the duration of parenteral nutrition, and reduce catheter-related bloodstream infection in very preterm/very low birth weight infants, without increasing the risk of necrotizing enterocolitis.

Acupuncture therapy with point selection based on syndrome differentiation along the meridians for functional dyspepsia: a randomized controlled trial / 针灸推拿医学（英文版）

Objective: To observe the difference in clinical efficacy between acupuncture with point selection based on syndrome differentiation along the meridians and acupuncture at non-meridian and non-acupoint points for functional dyspepsia (FD). Methods: A total of 74 FD patients were randomized into an observation group and a control group, with 37 cases in each group. Both groups received acupuncture treatment. Zusanli (ST 36) and Neiguan (PC 6) were selected in the observation group, with Taichong (LR 3) and Neiting (ST 44) added for excess syndrome, and Gongsun (SP 4) and Yinlingquan (SP 9) added for deficiency syndrome. Four non-meridian and non-acupoint points were selected in the control group. The treatments in both groups were performed once a day with a 2-day break after 5 consecutive treatments, which constituted one treatment course. A total of 4 courses were performed. The scores of Nepean dyspepsia index (NDI) and Leeds dyspepsia questionnaire (LDQ) were recorded before and after treatment, and during follow-up (8, 12, 16, 20 and 24 weeks after recruitment) to assess the clinical efficacy. Results: The NDI scores in the two groups after treatment and at each time point during follow-up were higher than those before treatment (all P<0.05), and the LDQ scores were lower than those before treatment (all P<0.05). The NDI scores after treatment and at each time point during follow-up in the observation group were higher than those in the control group (all P<0.01); the total LDQ score and scores of upper abdominal pain, postprandial satiety and upper abdominal burning sensation after treatment and at each time point during follow-up in the observation group were significantly lower than those in the control group (P<0.01 or P<0.05).. Conclusion: Acupuncture with point selection based on syndrome differentiation along the meridians has a better curative effect than acupuncture at non meridian and non-acupoint points in the treatment of FD.

Analysis of animal models based on clinical symptoms of gout / 中国中药杂志

According to the characteristics of gout's clinical symptoms, the common gout animal models were analyzed, and the anastomosis and application prospect of the existing gout animal models with the clinical symptoms were discussed. At present, there are three models of gout: hyperuricemia model, gouty arthritis model and gouty nephropathy model. There are many methods of gout modeling, but there is a lack of animal model replication that could reflect the characteristics of gout's clinical symptoms and reflect the etiology of gout, and there is still a gap between the clinical symptoms and the clinical symptoms. In this paper, the characteristics and modeling methods of the three animal models were summarized, and compared with the clinical symptoms and standards, the anastomosis between the existing animal models and the clinical symptoms were analyzed and discussed, and the evaluation and improvement methods of the corresponding animal models were put forward. It provides a reliable experimental method for the treatment of gout by traditional Chinese medicine.

Culture and Identification of Bone Marrow Mesenchymal Stem Cells from Enhanced Green Fluorescent Protein-transgenic Rats / 中国医学科学院学报

<p><b>OBJECTIVE</b>To isolate, culture, and identify bone marrow mesenchymal stem cells (BMSCs) from enhanced green fluorescent protein (EGFP)-transgenic rats in vitro.</p><p><b>METHODS</b>Bone marrows were isolated from tibia and femur of healthy EGFP-transgenic rats of specific pathogen free (SPF) grade. Then,the whole bone marrow adherent method was used for isolation,culture,and purification of BMSCs. The morphological change was noted by continuous observation under inverted fluorescence microscope. The growth curve of cells was drawn through the method of CCK-8 and the proliferation compared with wild type BMSCs. The surface markers of BMSCs were detected by flow cytometry. The BMSCs were induced to differentiate into osteoblasts, adipocytes, and chondrocytes lineages. The EGFP-BMSCs were transplanted into the rats intravenously, and the expression of GFP was detected.</p><p><b>RESULTS</b>BMSCs stably expressing EGFP gene were obtained successfully, with the fusiform-shaped appearance and the forming of circinate cell colonies. The growth curve of EGFP-MSCs showed the characteristic of active proliferation, showing no significant difference compared with the wild-type BMSCs. The expression rates of the surface markers of BMSCs CD29, CD90, CD34, CD49d, and CD45 were 99.4%, 96.4%, 0.171%, 0.049%, and 0.038%. The GFP were detected in lung 3 days after transplantation. After osteogenic, adipogenic, and chondrogenic induction, oil red-O and alizarin red positive signals and toluidine blue positive cells were detected.</p><p><b>CONCLUSIONS</b>High-purity BMSCs stably expressing green fluorescent protein gene can be cultured using the whole bone marrow adherent method. EGFP does not affect the stem cell properties and expresses stably after transplantation. The cells can be used as seed cells for subsequent research.</p>

Establishment and application of human CHO/NTR1 system / 药学学报

Neurotensin receptor-1 (NTR1), which can stimulate the intracellular cascade signal pathway, belongs to the large superfamily of G-protein coupled receptors. NTR1 is related to the occurrence and development of several kinds of diseases. In order to screen the inhibitors for the cancers associated with NTR1 protein, we established a CHO (Chinese hamster ovary) cell line in which human neurotensin receptor-1 was highly expressed. The method is to construct the recombinant plasmid which was lysed with the hNTR1 gene and transfect it into CHO cells. After selected with G418, the cell line was evaluated by Western blotting analysis and calcium flux assays. Through the calcium flux assays on FlexStation 3, we got the EC50 value of neurotensin peptide which is the natural NTR1 agonist, and the IC 50 value of SR48692 which is the known NTR1 antagonist. The established human CHO/NTR1 cell line can be used to study the profile of NTR1 biological activity and further screen of NTR1 antagonists and agonists.

The Status of iron deficiency anemia and its effect on growth and development among infants / 预防医学

Objective To know the prevalence rate of iron deficiency anemia and its effect on growth and development among infants under 6 months. Methods A total of 341 infants who were born from July 2011 to June 2012 were enrolled. The information of blood routine examination,growth index,feeding patterns was collected at age of 42 days and 6 months,respectively. Developmental screening test was conducted at age of 6 months. Results The prevalence rate of anemia at 42 days was 37. 54%,and there was no significant difference between males(40. 54%)and females(33. 97%) (P>0. 05). The prevalence rate of iron deficiency anemia at 6 months was 19. 35%,in which 48. 48% were new cases. At age of 42 days,there was no significant difference between different feeding patterns in anemia prevalence( breast feeding:30. 82%,mixed feeding:41. 40%,artificial feeding:47. 37%,P>0. 05). While at age of 6 months,the anemia prevalence of breast feeding group was higher( 38. 20%)than that of the other two groups( mixed feeding:16. 38%;artificial feeding:9. 56%;P<0. 05 ). The rate of developmental quotient below 70 was 11. 76% in the anemia cases whose hemoglobin was continuously low from 42 days to 6 months,which was higher than that of new onset anemia cases (3. 13%)and normal hemoglobin controls(1. 82%)(P<0. 05). Conclusion Continuously low hemoglobin at early age of 42 days to 6 months is potentially harmful to neuropsychological development of infants. Early screening of hemoglobin is urgently needed for intervention of iron deficiency anemia among infants.

Treatment of acquired immunodeficiency syndrome with Chinese medicine in China: opportunity, advancement and challenges / 中国结合医学杂志

Chinese medicine (CM) has been used in the treatment of human immunodeficiency virus (HIV) infection and acquired immunodeficiency syndrome (AIDS) for 30 years and the demonstrated therapeutic effects of CM, such as reducing plasma HIV viral load, increasing CD4(+)T cell counts, promoting immunity reconstitution, ameliorating symptoms and signs, improving the health related quality of life (HRQOL) and counteracting against the effects of anti-retroviral drugs, were summarized and reviewed in this article. The authors point out that it had been a good opportunity to use CM for the treatment of HIV infection and AIDS in the past and also there are huge challenges ahead for CM research and clinicians to discover more effective CM and its underlying mechanisms for treatment of AIDS.

Preliminary study on features of syndrome distribution and cluster analysis for AIDS patients with pulmonary infection / 中国中西医结合杂志

<p><b>OBJECTIVE</b>To investigate Chinese medical features of acquired immunodeficiency syndrome (AIDS) patients with pulmonary infection.</p><p><b>METHODS</b>Using cluster analysis method, Chinese medical syndromes of 196 AIDS patients with pulmonary infection were analyzed. The distribution features of each syndrome type were analyzed according to the severity and CD4+ numerical analysis.</p><p><b>RESULTS</b>Basic Chinese medical syndrome types could be summed up as three kinds: exterior invasion of wind heat and phlegm heat obstructing Fei syndrome (61 cases, 31.1%), Fei-Pi deficiency and Fei stagnation of phlegm syndrome (64 cases, 32.7%), Fei-Shen deficiency and yin deficiency induced inner heat syndrome (71 cases, 36.2%). There was statistical difference in the severity degree and the distribution of CD4 among the three syndrome types (P < 0.05).</p><p><b>CONCLUSIONS</b>AIDS patients with pulmonary infection involve Fei, Shen, and Pi. The pathogenic factors were related to "wind", "heat", "phlegm", and "xu". The Chinese medical syndrome distribution was closely correlated with patients' immunity.</p>

Normal light and fluorescence microscopy for authentication of Delphinii Brunoniani Herba of Tibet / 药学学报

Dried herb of Delphinium brunonianum Royle (Ranunculaceae) has long been used under the herbal name "Xiaguobei" (Delphinii Brunoniani Herba) in traditional Tibetan medicine and prescribed for the treatment of influenza, itchy skin rash and snake bites. In order to find a useful and convenient method for the identification of microscopic features, the technique of fluorescence microscopy was applied to authenticate "Xiaguobei" of Tibet. The transverse sections of stem and leaf, as well as the powder of "Xiaguobei" were observed to seek for typical microscopic features by normal light and fluorescence microscopy. A style-like, single-cell glandular hair containing yellow secretions on the leaf, young stem and sepal of "Xiaguobei" was found. Under the fluorescence microscope, the xylem and pericycle fiber group emitted significant fluorescence. This work indicated that fluorescence microscopy could be an useful additional method for the authentication work. Without the traditional dyeing methods, the main microscopic features could be easily found by fluorescence microscopy. The results provided reliable references for the authentication of "Xiaguobei".

The safety of the mobilization of peripheral blood stem cells by granulocyte colony-stimulating factor in elderly donors / 中国基层医药

Objective To explore the safety of the mobilization of peripheral blood stem cells(PBSC)by granulocyte colony-stimulating factor(G-CSF)in elderly donors.Methods 28 peripheral arteriosclerotic occlusive disease(PAOD)elderly patients(aged≥60 years),and 29 healthy sibling young/adult donors(aged＜60 years)for peripheral allogenic stem cell transplantation were included.Blood samples were collected immediately before starting G-CSF and prior to PBSC collection to analyze the following parameters:the WBC counts,fibrinogen(FIB),D-dimer (D-D),thrombin antithrombin complex(TAT),antithrombin(AT)and yon Willebrand factor antigen(vWF:Ag). Results It had a very significant increase in D-D and vWF:Ag and a very significant decrease of AT(P＜0.01),af- ter mobilization by G-CSF,and a increase in FIB and TAT were also observed(P＜0.05,P＜0.01)in elderly group.In the young/aduh group,the increase in FIB was significant(P＜0.05).The elevating extent of D-D and TAT after G-CSF administration was significantly higher in elderly group than that in young/adult group(P＜0.05).Compared to young/adult group,there was a significant increase in thrombotic events and cerebrovascular ac- cident(P＜0.05).Conclusion In PBCS donorsreceiving G-CSF it reveals activation of both coagulation and en- dothelial cells and inhibition of anticoagulant system that can favor the developing of thrombotic events,which is more remarkable in elderly donors.Therefore a careful monitoring for coagulation system should be considered in those elderly cases.

Pathways for Nitrobenzene Biodegradation / 微生物学通报

Nitrobenzene is one of the toxic compounds. Much work had focused on biodegradation of it sofar. Two main pathways for nitrobenzene biodegradation, oxidative and partial reductive pathways, were reviewed in this article. The mechanism of these pathways including involved enzymes and genes was introduce in details. Comparative analysis of the pathways would provide basis for the development and application of biodegradation technology for nitrobenzene and other organic pollutants.

Study of Neurobehavioral Teratogenesis in Offspring of Pregnant Rats Exposed to Hyperthermia and Irradiation / 实用儿科临床杂志

Objective To study whether hyperthermia and ionizing radiation could produce combined effects on the neurobehaviors of neonatal rats.Methods These rats who were pregnant for 8 or 9 days received respectively total body irradiation by 60Co-rays .When the rats were pregnant for 10 days,the temperature of rat anus was kept at (37?0.5) ℃,(41?0.5) ℃,(42?0.5) ℃,respectively in warming boxes and lasted for 2,3,4,5 minutes.The neurobehaviors of neonatal rats were observed.Results In contrast to control group and 37 ℃group ,when pregnant rats were exposed to high temperature.the neonate rats were delayed for the appearance of four physiologic markers,the age of acquisition for four reflexes and the time of learning and memory(P